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aha/drivers/net/tg3.c
Eric Dumazet 042a53a9e4 net: skb_shared_info optimization 
skb_dma_unmap() is quite expensive for small packets,
because we use two different cache lines from skb_shared_info.

One to access nr_frags, one to access dma_maps[0]

Instead of dma_maps being an array of MAX_SKB_FRAGS + 1 elements,
let dma_head alone in a new dma_head field, close to nr_frags,
to reduce cache lines misses.

Tested on my dev machine (bnx2 & tg3 adapters), nice speedup !

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-08 00:21:48 -07:00

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/*
* tg3.c: Broadcom Tigon3 ethernet driver.
*
* Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem@redhat.com)
* Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik@pobox.com)
* Copyright (C) 2004 Sun Microsystems Inc.
* Copyright (C) 2005-2009 Broadcom Corporation.
*
* Firmware is:
* Derived from proprietary unpublished source code,
* Copyright (C) 2000-2003 Broadcom Corporation.
*
* Permission is hereby granted for the distribution of this firmware
* data in hexadecimal or equivalent format, provided this copyright
* notice is accompanying it.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/compiler.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/in.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/brcmphy.h>
#include <linux/if_vlan.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/workqueue.h>
#include <linux/prefetch.h>
#include <linux/dma-mapping.h>
#include <linux/firmware.h>
#include <net/checksum.h>
#include <net/ip.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/byteorder.h>
#include <asm/uaccess.h>
#ifdef CONFIG_SPARC
#include <asm/idprom.h>
#include <asm/prom.h>
#endif
#define BAR_0 0
#define BAR_2 2
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
#define TG3_VLAN_TAG_USED 1
#else
#define TG3_VLAN_TAG_USED 0
#endif
#include "tg3.h"
#define DRV_MODULE_NAME "tg3"
#define PFX DRV_MODULE_NAME ": "
#define DRV_MODULE_VERSION "3.99"
#define DRV_MODULE_RELDATE "April 20, 2009"
#define TG3_DEF_MAC_MODE 0
#define TG3_DEF_RX_MODE 0
#define TG3_DEF_TX_MODE 0
#define TG3_DEF_MSG_ENABLE \
(NETIF_MSG_DRV | \
NETIF_MSG_PROBE | \
NETIF_MSG_LINK | \
NETIF_MSG_TIMER | \
NETIF_MSG_IFDOWN | \
NETIF_MSG_IFUP | \
NETIF_MSG_RX_ERR | \
NETIF_MSG_TX_ERR)
/* length of time before we decide the hardware is borked,
* and dev->tx_timeout() should be called to fix the problem
*/
#define TG3_TX_TIMEOUT (5 * HZ)
/* hardware minimum and maximum for a single frame's data payload */
#define TG3_MIN_MTU 60
#define TG3_MAX_MTU(tp) \
((tp->tg3_flags2 & TG3_FLG2_JUMBO_CAPABLE) ? 9000 : 1500)
/* These numbers seem to be hard coded in the NIC firmware somehow.
* You can't change the ring sizes, but you can change where you place
* them in the NIC onboard memory.
*/
#define TG3_RX_RING_SIZE 512
#define TG3_DEF_RX_RING_PENDING 200
#define TG3_RX_JUMBO_RING_SIZE 256
#define TG3_DEF_RX_JUMBO_RING_PENDING 100
/* Do not place this n-ring entries value into the tp struct itself,
* we really want to expose these constants to GCC so that modulo et
* al. operations are done with shifts and masks instead of with
* hw multiply/modulo instructions. Another solution would be to
* replace things like '% foo' with '& (foo - 1)'.
*/
#define TG3_RX_RCB_RING_SIZE(tp) \
((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ? 512 : 1024)
#define TG3_TX_RING_SIZE 512
#define TG3_DEF_TX_RING_PENDING (TG3_TX_RING_SIZE - 1)
#define TG3_RX_RING_BYTES (sizeof(struct tg3_rx_buffer_desc) * \
TG3_RX_RING_SIZE)
#define TG3_RX_JUMBO_RING_BYTES (sizeof(struct tg3_rx_buffer_desc) * \
TG3_RX_JUMBO_RING_SIZE)
#define TG3_RX_RCB_RING_BYTES(tp) (sizeof(struct tg3_rx_buffer_desc) * \
TG3_RX_RCB_RING_SIZE(tp))
#define TG3_TX_RING_BYTES (sizeof(struct tg3_tx_buffer_desc) * \
TG3_TX_RING_SIZE)
#define NEXT_TX(N) (((N) + 1) & (TG3_TX_RING_SIZE - 1))
#define RX_PKT_BUF_SZ (1536 + tp->rx_offset + 64)
#define RX_JUMBO_PKT_BUF_SZ (9046 + tp->rx_offset + 64)
/* minimum number of free TX descriptors required to wake up TX process */
#define TG3_TX_WAKEUP_THRESH(tp) ((tp)->tx_pending / 4)
#define TG3_RAW_IP_ALIGN 2
/* number of ETHTOOL_GSTATS u64's */
#define TG3_NUM_STATS (sizeof(struct tg3_ethtool_stats)/sizeof(u64))
#define TG3_NUM_TEST 6
#define FIRMWARE_TG3 "tigon/tg3.bin"
#define FIRMWARE_TG3TSO "tigon/tg3_tso.bin"
#define FIRMWARE_TG3TSO5 "tigon/tg3_tso5.bin"
static char version[] __devinitdata =
DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("David S. Miller (davem@redhat.com) and Jeff Garzik (jgarzik@pobox.com)");
MODULE_DESCRIPTION("Broadcom Tigon3 ethernet driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);
MODULE_FIRMWARE(FIRMWARE_TG3);
MODULE_FIRMWARE(FIRMWARE_TG3TSO);
MODULE_FIRMWARE(FIRMWARE_TG3TSO5);
static int tg3_debug = -1; /* -1 == use TG3_DEF_MSG_ENABLE as value */
module_param(tg3_debug, int, 0);
MODULE_PARM_DESC(tg3_debug, "Tigon3 bitmapped debugging message enable value");
static struct pci_device_id tg3_pci_tbl[] = {
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5700)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5701)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702FE)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705_2)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M_2)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702X)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703X)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702A3)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703A3)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5782)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5788)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5789)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901_2)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S_2)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705F)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5720)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5721)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5722)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751F)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753F)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5756)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5786)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787F)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714S)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715S)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780S)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5781)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5784)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5764)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5723)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761E)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761S)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761SE)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5785)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57760)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57790)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57720)},
{PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)},
{PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)},
{PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)},
{PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1001)},
{PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1003)},
{PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC9100)},
{PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_TIGON3)},
{}
};
MODULE_DEVICE_TABLE(pci, tg3_pci_tbl);
static const struct {
const char string[ETH_GSTRING_LEN];
} ethtool_stats_keys[TG3_NUM_STATS] = {
{ "rx_octets" },
{ "rx_fragments" },
{ "rx_ucast_packets" },
{ "rx_mcast_packets" },
{ "rx_bcast_packets" },
{ "rx_fcs_errors" },
{ "rx_align_errors" },
{ "rx_xon_pause_rcvd" },
{ "rx_xoff_pause_rcvd" },
{ "rx_mac_ctrl_rcvd" },
{ "rx_xoff_entered" },
{ "rx_frame_too_long_errors" },
{ "rx_jabbers" },
{ "rx_undersize_packets" },
{ "rx_in_length_errors" },
{ "rx_out_length_errors" },
{ "rx_64_or_less_octet_packets" },
{ "rx_65_to_127_octet_packets" },
{ "rx_128_to_255_octet_packets" },
{ "rx_256_to_511_octet_packets" },
{ "rx_512_to_1023_octet_packets" },
{ "rx_1024_to_1522_octet_packets" },
{ "rx_1523_to_2047_octet_packets" },
{ "rx_2048_to_4095_octet_packets" },
{ "rx_4096_to_8191_octet_packets" },
{ "rx_8192_to_9022_octet_packets" },
{ "tx_octets" },
{ "tx_collisions" },
{ "tx_xon_sent" },
{ "tx_xoff_sent" },
{ "tx_flow_control" },
{ "tx_mac_errors" },
{ "tx_single_collisions" },
{ "tx_mult_collisions" },
{ "tx_deferred" },
{ "tx_excessive_collisions" },
{ "tx_late_collisions" },
{ "tx_collide_2times" },
{ "tx_collide_3times" },
{ "tx_collide_4times" },
{ "tx_collide_5times" },
{ "tx_collide_6times" },
{ "tx_collide_7times" },
{ "tx_collide_8times" },
{ "tx_collide_9times" },
{ "tx_collide_10times" },
{ "tx_collide_11times" },
{ "tx_collide_12times" },
{ "tx_collide_13times" },
{ "tx_collide_14times" },
{ "tx_collide_15times" },
{ "tx_ucast_packets" },
{ "tx_mcast_packets" },
{ "tx_bcast_packets" },
{ "tx_carrier_sense_errors" },
{ "tx_discards" },
{ "tx_errors" },
{ "dma_writeq_full" },
{ "dma_write_prioq_full" },
{ "rxbds_empty" },
{ "rx_discards" },
{ "rx_errors" },
{ "rx_threshold_hit" },
{ "dma_readq_full" },
{ "dma_read_prioq_full" },
{ "tx_comp_queue_full" },
{ "ring_set_send_prod_index" },
{ "ring_status_update" },
{ "nic_irqs" },
{ "nic_avoided_irqs" },
{ "nic_tx_threshold_hit" }
};
static const struct {
const char string[ETH_GSTRING_LEN];
} ethtool_test_keys[TG3_NUM_TEST] = {
{ "nvram test (online) " },
{ "link test (online) " },
{ "register test (offline)" },
{ "memory test (offline)" },
{ "loopback test (offline)" },
{ "interrupt test (offline)" },
};
static void tg3_write32(struct tg3 *tp, u32 off, u32 val)
{
writel(val, tp->regs + off);
}
static u32 tg3_read32(struct tg3 *tp, u32 off)
{
return (readl(tp->regs + off));
}
static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val)
{
writel(val, tp->aperegs + off);
}
static u32 tg3_ape_read32(struct tg3 *tp, u32 off)
{
return (readl(tp->aperegs + off));
}
static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val)
{
unsigned long flags;
spin_lock_irqsave(&tp->indirect_lock, flags);
pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
spin_unlock_irqrestore(&tp->indirect_lock, flags);
}
static void tg3_write_flush_reg32(struct tg3 *tp, u32 off, u32 val)
{
writel(val, tp->regs + off);
readl(tp->regs + off);
}
static u32 tg3_read_indirect_reg32(struct tg3 *tp, u32 off)
{
unsigned long flags;
u32 val;
spin_lock_irqsave(&tp->indirect_lock, flags);
pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
spin_unlock_irqrestore(&tp->indirect_lock, flags);
return val;
}
static void tg3_write_indirect_mbox(struct tg3 *tp, u32 off, u32 val)
{
unsigned long flags;
if (off == (MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW)) {
pci_write_config_dword(tp->pdev, TG3PCI_RCV_RET_RING_CON_IDX +
TG3_64BIT_REG_LOW, val);
return;
}
if (off == (MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW)) {
pci_write_config_dword(tp->pdev, TG3PCI_STD_RING_PROD_IDX +
TG3_64BIT_REG_LOW, val);
return;
}
spin_lock_irqsave(&tp->indirect_lock, flags);
pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
spin_unlock_irqrestore(&tp->indirect_lock, flags);
/* In indirect mode when disabling interrupts, we also need
* to clear the interrupt bit in the GRC local ctrl register.
*/
if ((off == (MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW)) &&
(val == 0x1)) {
pci_write_config_dword(tp->pdev, TG3PCI_MISC_LOCAL_CTRL,
tp->grc_local_ctrl|GRC_LCLCTRL_CLEARINT);
}
}
static u32 tg3_read_indirect_mbox(struct tg3 *tp, u32 off)
{
unsigned long flags;
u32 val;
spin_lock_irqsave(&tp->indirect_lock, flags);
pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
spin_unlock_irqrestore(&tp->indirect_lock, flags);
return val;
}
/* usec_wait specifies the wait time in usec when writing to certain registers
* where it is unsafe to read back the register without some delay.
* GRC_LOCAL_CTRL is one example if the GPIOs are toggled to switch power.
* TG3PCI_CLOCK_CTRL is another example if the clock frequencies are changed.
*/
static void _tw32_flush(struct tg3 *tp, u32 off, u32 val, u32 usec_wait)
{
if ((tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) ||
(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
/* Non-posted methods */
tp->write32(tp, off, val);
else {
/* Posted method */
tg3_write32(tp, off, val);
if (usec_wait)
udelay(usec_wait);
tp->read32(tp, off);
}
/* Wait again after the read for the posted method to guarantee that
* the wait time is met.
*/
if (usec_wait)
udelay(usec_wait);
}
static inline void tw32_mailbox_flush(struct tg3 *tp, u32 off, u32 val)
{
tp->write32_mbox(tp, off, val);
if (!(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) &&
!(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
tp->read32_mbox(tp, off);
}
static void tg3_write32_tx_mbox(struct tg3 *tp, u32 off, u32 val)
{
void __iomem *mbox = tp->regs + off;
writel(val, mbox);
if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
writel(val, mbox);
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
readl(mbox);
}
static u32 tg3_read32_mbox_5906(struct tg3 *tp, u32 off)
{
return (readl(tp->regs + off + GRCMBOX_BASE));
}
static void tg3_write32_mbox_5906(struct tg3 *tp, u32 off, u32 val)
{
writel(val, tp->regs + off + GRCMBOX_BASE);
}
#define tw32_mailbox(reg, val) tp->write32_mbox(tp, reg, val)
#define tw32_mailbox_f(reg, val) tw32_mailbox_flush(tp, (reg), (val))
#define tw32_rx_mbox(reg, val) tp->write32_rx_mbox(tp, reg, val)
#define tw32_tx_mbox(reg, val) tp->write32_tx_mbox(tp, reg, val)
#define tr32_mailbox(reg) tp->read32_mbox(tp, reg)
#define tw32(reg,val) tp->write32(tp, reg, val)
#define tw32_f(reg,val) _tw32_flush(tp,(reg),(val), 0)
#define tw32_wait_f(reg,val,us) _tw32_flush(tp,(reg),(val), (us))
#define tr32(reg) tp->read32(tp, reg)
static void tg3_write_mem(struct tg3 *tp, u32 off, u32 val)
{
unsigned long flags;
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
(off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC))
return;
spin_lock_irqsave(&tp->indirect_lock, flags);
if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
/* Always leave this as zero. */
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
} else {
tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
tw32_f(TG3PCI_MEM_WIN_DATA, val);
/* Always leave this as zero. */
tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
}
spin_unlock_irqrestore(&tp->indirect_lock, flags);
}
static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val)
{
unsigned long flags;
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
(off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC)) {
*val = 0;
return;
}
spin_lock_irqsave(&tp->indirect_lock, flags);
if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
pci_read_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
/* Always leave this as zero. */
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
} else {
tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
*val = tr32(TG3PCI_MEM_WIN_DATA);
/* Always leave this as zero. */
tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
}
spin_unlock_irqrestore(&tp->indirect_lock, flags);
}
static void tg3_ape_lock_init(struct tg3 *tp)
{
int i;
/* Make sure the driver hasn't any stale locks. */
for (i = 0; i < 8; i++)
tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + 4 * i,
APE_LOCK_GRANT_DRIVER);
}
static int tg3_ape_lock(struct tg3 *tp, int locknum)
{
int i, off;
int ret = 0;
u32 status;
if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
return 0;
switch (locknum) {
case TG3_APE_LOCK_GRC:
case TG3_APE_LOCK_MEM:
break;
default:
return -EINVAL;
}
off = 4 * locknum;
tg3_ape_write32(tp, TG3_APE_LOCK_REQ + off, APE_LOCK_REQ_DRIVER);
/* Wait for up to 1 millisecond to acquire lock. */
for (i = 0; i < 100; i++) {
status = tg3_ape_read32(tp, TG3_APE_LOCK_GRANT + off);
if (status == APE_LOCK_GRANT_DRIVER)
break;
udelay(10);
}
if (status != APE_LOCK_GRANT_DRIVER) {
/* Revoke the lock request. */
tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + off,
APE_LOCK_GRANT_DRIVER);
ret = -EBUSY;
}
return ret;
}
static void tg3_ape_unlock(struct tg3 *tp, int locknum)
{
int off;
if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
return;
switch (locknum) {
case TG3_APE_LOCK_GRC:
case TG3_APE_LOCK_MEM:
break;
default:
return;
}
off = 4 * locknum;
tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + off, APE_LOCK_GRANT_DRIVER);
}
static void tg3_disable_ints(struct tg3 *tp)
{
tw32(TG3PCI_MISC_HOST_CTRL,
(tp->misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT));
tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
}
static inline void tg3_cond_int(struct tg3 *tp)
{
if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
(tp->hw_status->status & SD_STATUS_UPDATED))
tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
else
tw32(HOSTCC_MODE, tp->coalesce_mode |
(HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW));
}
static void tg3_enable_ints(struct tg3 *tp)
{
tp->irq_sync = 0;
wmb();
tw32(TG3PCI_MISC_HOST_CTRL,
(tp->misc_host_ctrl & ~MISC_HOST_CTRL_MASK_PCI_INT));
tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
(tp->last_tag << 24));
if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
(tp->last_tag << 24));
tg3_cond_int(tp);
}
static inline unsigned int tg3_has_work(struct tg3 *tp)
{
struct tg3_hw_status *sblk = tp->hw_status;
unsigned int work_exists = 0;
/* check for phy events */
if (!(tp->tg3_flags &
(TG3_FLAG_USE_LINKCHG_REG |
TG3_FLAG_POLL_SERDES))) {
if (sblk->status & SD_STATUS_LINK_CHG)
work_exists = 1;
}
/* check for RX/TX work to do */
if (sblk->idx[0].tx_consumer != tp->tx_cons ||
sblk->idx[0].rx_producer != tp->rx_rcb_ptr)
work_exists = 1;
return work_exists;
}
/* tg3_restart_ints
* similar to tg3_enable_ints, but it accurately determines whether there
* is new work pending and can return without flushing the PIO write
* which reenables interrupts
*/
static void tg3_restart_ints(struct tg3 *tp)
{
tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
tp->last_tag << 24);
mmiowb();
/* When doing tagged status, this work check is unnecessary.
* The last_tag we write above tells the chip which piece of
* work we've completed.
*/
if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
tg3_has_work(tp))
tw32(HOSTCC_MODE, tp->coalesce_mode |
(HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW));
}
static inline void tg3_netif_stop(struct tg3 *tp)
{
tp->dev->trans_start = jiffies; /* prevent tx timeout */
napi_disable(&tp->napi);
netif_tx_disable(tp->dev);
}
static inline void tg3_netif_start(struct tg3 *tp)
{
netif_wake_queue(tp->dev);
/* NOTE: unconditional netif_wake_queue is only appropriate
* so long as all callers are assured to have free tx slots
* (such as after tg3_init_hw)
*/
napi_enable(&tp->napi);
tp->hw_status->status |= SD_STATUS_UPDATED;
tg3_enable_ints(tp);
}
static void tg3_switch_clocks(struct tg3 *tp)
{
u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL);
u32 orig_clock_ctrl;
if ((tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
return;
orig_clock_ctrl = clock_ctrl;
clock_ctrl &= (CLOCK_CTRL_FORCE_CLKRUN |
CLOCK_CTRL_CLKRUN_OENABLE |
0x1f);
tp->pci_clock_ctrl = clock_ctrl;
if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
if (orig_clock_ctrl & CLOCK_CTRL_625_CORE) {
tw32_wait_f(TG3PCI_CLOCK_CTRL,
clock_ctrl | CLOCK_CTRL_625_CORE, 40);
}
} else if ((orig_clock_ctrl & CLOCK_CTRL_44MHZ_CORE) != 0) {
tw32_wait_f(TG3PCI_CLOCK_CTRL,
clock_ctrl |
(CLOCK_CTRL_44MHZ_CORE | CLOCK_CTRL_ALTCLK),
40);
tw32_wait_f(TG3PCI_CLOCK_CTRL,
clock_ctrl | (CLOCK_CTRL_ALTCLK),
40);
}
tw32_wait_f(TG3PCI_CLOCK_CTRL, clock_ctrl, 40);
}
#define PHY_BUSY_LOOPS 5000
static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
{
u32 frame_val;
unsigned int loops;
int ret;
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE,
(tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
udelay(80);
}
*val = 0x0;
frame_val = ((PHY_ADDR << MI_COM_PHY_ADDR_SHIFT) &
MI_COM_PHY_ADDR_MASK);
frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
MI_COM_REG_ADDR_MASK);
frame_val |= (MI_COM_CMD_READ | MI_COM_START);
tw32_f(MAC_MI_COM, frame_val);
loops = PHY_BUSY_LOOPS;
while (loops != 0) {
udelay(10);
frame_val = tr32(MAC_MI_COM);
if ((frame_val & MI_COM_BUSY) == 0) {
udelay(5);
frame_val = tr32(MAC_MI_COM);
break;
}
loops -= 1;
}
ret = -EBUSY;
if (loops != 0) {
*val = frame_val & MI_COM_DATA_MASK;
ret = 0;
}
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE, tp->mi_mode);
udelay(80);
}
return ret;
}
static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
{
u32 frame_val;
unsigned int loops;
int ret;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 &&
(reg == MII_TG3_CTRL || reg == MII_TG3_AUX_CTRL))
return 0;
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE,
(tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
udelay(80);
}
frame_val = ((PHY_ADDR << MI_COM_PHY_ADDR_SHIFT) &
MI_COM_PHY_ADDR_MASK);
frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
MI_COM_REG_ADDR_MASK);
frame_val |= (val & MI_COM_DATA_MASK);
frame_val |= (MI_COM_CMD_WRITE | MI_COM_START);
tw32_f(MAC_MI_COM, frame_val);
loops = PHY_BUSY_LOOPS;
while (loops != 0) {
udelay(10);
frame_val = tr32(MAC_MI_COM);
if ((frame_val & MI_COM_BUSY) == 0) {
udelay(5);
frame_val = tr32(MAC_MI_COM);
break;
}
loops -= 1;
}
ret = -EBUSY;
if (loops != 0)
ret = 0;
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE, tp->mi_mode);
udelay(80);
}
return ret;
}
static int tg3_bmcr_reset(struct tg3 *tp)
{
u32 phy_control;
int limit, err;
/* OK, reset it, and poll the BMCR_RESET bit until it
* clears or we time out.
*/
phy_control = BMCR_RESET;
err = tg3_writephy(tp, MII_BMCR, phy_control);
if (err != 0)
return -EBUSY;
limit = 5000;
while (limit--) {
err = tg3_readphy(tp, MII_BMCR, &phy_control);
if (err != 0)
return -EBUSY;
if ((phy_control & BMCR_RESET) == 0) {
udelay(40);
break;
}
udelay(10);
}
if (limit < 0)
return -EBUSY;
return 0;
}
static int tg3_mdio_read(struct mii_bus *bp, int mii_id, int reg)
{
struct tg3 *tp = bp->priv;
u32 val;
if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_PAUSED)
return -EAGAIN;
if (tg3_readphy(tp, reg, &val))
return -EIO;
return val;
}
static int tg3_mdio_write(struct mii_bus *bp, int mii_id, int reg, u16 val)
{
struct tg3 *tp = bp->priv;
if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_PAUSED)
return -EAGAIN;
if (tg3_writephy(tp, reg, val))
return -EIO;
return 0;
}
static int tg3_mdio_reset(struct mii_bus *bp)
{
return 0;
}
static void tg3_mdio_config_5785(struct tg3 *tp)
{
u32 val;
struct phy_device *phydev;
phydev = tp->mdio_bus->phy_map[PHY_ADDR];
switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
case TG3_PHY_ID_BCM50610:
val = MAC_PHYCFG2_50610_LED_MODES;
break;
case TG3_PHY_ID_BCMAC131:
val = MAC_PHYCFG2_AC131_LED_MODES;
break;
case TG3_PHY_ID_RTL8211C:
val = MAC_PHYCFG2_RTL8211C_LED_MODES;
break;
case TG3_PHY_ID_RTL8201E:
val = MAC_PHYCFG2_RTL8201E_LED_MODES;
break;
default:
return;
}
if (phydev->interface != PHY_INTERFACE_MODE_RGMII) {
tw32(MAC_PHYCFG2, val);
val = tr32(MAC_PHYCFG1);
val &= ~MAC_PHYCFG1_RGMII_INT;
tw32(MAC_PHYCFG1, val);
return;
}
if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE))
val |= MAC_PHYCFG2_EMODE_MASK_MASK |
MAC_PHYCFG2_FMODE_MASK_MASK |
MAC_PHYCFG2_GMODE_MASK_MASK |
MAC_PHYCFG2_ACT_MASK_MASK |
MAC_PHYCFG2_QUAL_MASK_MASK |
MAC_PHYCFG2_INBAND_ENABLE;
tw32(MAC_PHYCFG2, val);
val = tr32(MAC_PHYCFG1) & ~(MAC_PHYCFG1_RGMII_EXT_RX_DEC |
MAC_PHYCFG1_RGMII_SND_STAT_EN);
if (tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE) {
if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
val |= MAC_PHYCFG1_RGMII_EXT_RX_DEC;
if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
val |= MAC_PHYCFG1_RGMII_SND_STAT_EN;
}
tw32(MAC_PHYCFG1, val | MAC_PHYCFG1_RGMII_INT | MAC_PHYCFG1_TXC_DRV);
val = tr32(MAC_EXT_RGMII_MODE);
val &= ~(MAC_RGMII_MODE_RX_INT_B |
MAC_RGMII_MODE_RX_QUALITY |
MAC_RGMII_MODE_RX_ACTIVITY |
MAC_RGMII_MODE_RX_ENG_DET |
MAC_RGMII_MODE_TX_ENABLE |
MAC_RGMII_MODE_TX_LOWPWR |
MAC_RGMII_MODE_TX_RESET);
if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE)) {
if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
val |= MAC_RGMII_MODE_RX_INT_B |
MAC_RGMII_MODE_RX_QUALITY |
MAC_RGMII_MODE_RX_ACTIVITY |
MAC_RGMII_MODE_RX_ENG_DET;
if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
val |= MAC_RGMII_MODE_TX_ENABLE |
MAC_RGMII_MODE_TX_LOWPWR |
MAC_RGMII_MODE_TX_RESET;
}
tw32(MAC_EXT_RGMII_MODE, val);
}
static void tg3_mdio_start(struct tg3 *tp)
{
if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) {
mutex_lock(&tp->mdio_bus->mdio_lock);
tp->tg3_flags3 &= ~TG3_FLG3_MDIOBUS_PAUSED;
mutex_unlock(&tp->mdio_bus->mdio_lock);
}
tp->mi_mode &= ~MAC_MI_MODE_AUTO_POLL;
tw32_f(MAC_MI_MODE, tp->mi_mode);
udelay(80);
if ((tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) &&
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
tg3_mdio_config_5785(tp);
}
static void tg3_mdio_stop(struct tg3 *tp)
{
if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) {
mutex_lock(&tp->mdio_bus->mdio_lock);
tp->tg3_flags3 |= TG3_FLG3_MDIOBUS_PAUSED;
mutex_unlock(&tp->mdio_bus->mdio_lock);
}
}
static int tg3_mdio_init(struct tg3 *tp)
{
int i;
u32 reg;
struct phy_device *phydev;
tg3_mdio_start(tp);
if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) ||
(tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED))
return 0;
tp->mdio_bus = mdiobus_alloc();
if (tp->mdio_bus == NULL)
return -ENOMEM;
tp->mdio_bus->name = "tg3 mdio bus";
snprintf(tp->mdio_bus->id, MII_BUS_ID_SIZE, "%x",
(tp->pdev->bus->number << 8) | tp->pdev->devfn);
tp->mdio_bus->priv = tp;
tp->mdio_bus->parent = &tp->pdev->dev;
tp->mdio_bus->read = &tg3_mdio_read;
tp->mdio_bus->write = &tg3_mdio_write;
tp->mdio_bus->reset = &tg3_mdio_reset;
tp->mdio_bus->phy_mask = ~(1 << PHY_ADDR);
tp->mdio_bus->irq = &tp->mdio_irq[0];
for (i = 0; i < PHY_MAX_ADDR; i++)
tp->mdio_bus->irq[i] = PHY_POLL;
/* The bus registration will look for all the PHYs on the mdio bus.
* Unfortunately, it does not ensure the PHY is powered up before
* accessing the PHY ID registers. A chip reset is the
* quickest way to bring the device back to an operational state..
*/
if (tg3_readphy(tp, MII_BMCR, &reg) || (reg & BMCR_PDOWN))
tg3_bmcr_reset(tp);
i = mdiobus_register(tp->mdio_bus);
if (i) {
printk(KERN_WARNING "%s: mdiobus_reg failed (0x%x)\n",
tp->dev->name, i);
mdiobus_free(tp->mdio_bus);
return i;
}
phydev = tp->mdio_bus->phy_map[PHY_ADDR];
if (!phydev || !phydev->drv) {
printk(KERN_WARNING "%s: No PHY devices\n", tp->dev->name);
mdiobus_unregister(tp->mdio_bus);
mdiobus_free(tp->mdio_bus);
return -ENODEV;
}
switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
case TG3_PHY_ID_BCM57780:
phydev->interface = PHY_INTERFACE_MODE_GMII;
break;
case TG3_PHY_ID_BCM50610:
if (tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE)
phydev->dev_flags |= PHY_BRCM_STD_IBND_DISABLE;
if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
phydev->dev_flags |= PHY_BRCM_EXT_IBND_RX_ENABLE;
if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
phydev->dev_flags |= PHY_BRCM_EXT_IBND_TX_ENABLE;
/* fallthru */
case TG3_PHY_ID_RTL8211C:
phydev->interface = PHY_INTERFACE_MODE_RGMII;
break;
case TG3_PHY_ID_RTL8201E:
case TG3_PHY_ID_BCMAC131:
phydev->interface = PHY_INTERFACE_MODE_MII;
break;
}
tp->tg3_flags3 |= TG3_FLG3_MDIOBUS_INITED;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
tg3_mdio_config_5785(tp);
return 0;
}
static void tg3_mdio_fini(struct tg3 *tp)
{
if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) {
tp->tg3_flags3 &= ~TG3_FLG3_MDIOBUS_INITED;
mdiobus_unregister(tp->mdio_bus);
mdiobus_free(tp->mdio_bus);
tp->tg3_flags3 &= ~TG3_FLG3_MDIOBUS_PAUSED;
}
}
/* tp->lock is held. */
static inline void tg3_generate_fw_event(struct tg3 *tp)
{
u32 val;
val = tr32(GRC_RX_CPU_EVENT);
val |= GRC_RX_CPU_DRIVER_EVENT;
tw32_f(GRC_RX_CPU_EVENT, val);
tp->last_event_jiffies = jiffies;
}
#define TG3_FW_EVENT_TIMEOUT_USEC 2500
/* tp->lock is held. */
static void tg3_wait_for_event_ack(struct tg3 *tp)
{
int i;
unsigned int delay_cnt;
long time_remain;
/* If enough time has passed, no wait is necessary. */
time_remain = (long)(tp->last_event_jiffies + 1 +
usecs_to_jiffies(TG3_FW_EVENT_TIMEOUT_USEC)) -
(long)jiffies;
if (time_remain < 0)
return;
/* Check if we can shorten the wait time. */
delay_cnt = jiffies_to_usecs(time_remain);
if (delay_cnt > TG3_FW_EVENT_TIMEOUT_USEC)
delay_cnt = TG3_FW_EVENT_TIMEOUT_USEC;
delay_cnt = (delay_cnt >> 3) + 1;
for (i = 0; i < delay_cnt; i++) {
if (!(tr32(GRC_RX_CPU_EVENT) & GRC_RX_CPU_DRIVER_EVENT))
break;
udelay(8);
}
}
/* tp->lock is held. */
static void tg3_ump_link_report(struct tg3 *tp)
{
u32 reg;
u32 val;
if (!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
return;
tg3_wait_for_event_ack(tp);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_LINK_UPDATE);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 14);
val = 0;
if (!tg3_readphy(tp, MII_BMCR, &reg))
val = reg << 16;
if (!tg3_readphy(tp, MII_BMSR, &reg))
val |= (reg & 0xffff);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX, val);
val = 0;
if (!tg3_readphy(tp, MII_ADVERTISE, &reg))
val = reg << 16;
if (!tg3_readphy(tp, MII_LPA, &reg))
val |= (reg & 0xffff);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 4, val);
val = 0;
if (!(tp->tg3_flags2 & TG3_FLG2_MII_SERDES)) {
if (!tg3_readphy(tp, MII_CTRL1000, &reg))
val = reg << 16;
if (!tg3_readphy(tp, MII_STAT1000, &reg))
val |= (reg & 0xffff);
}
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 8, val);
if (!tg3_readphy(tp, MII_PHYADDR, &reg))
val = reg << 16;
else
val = 0;
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 12, val);
tg3_generate_fw_event(tp);
}
static void tg3_link_report(struct tg3 *tp)
{
if (!netif_carrier_ok(tp->dev)) {
if (netif_msg_link(tp))
printk(KERN_INFO PFX "%s: Link is down.\n",
tp->dev->name);
tg3_ump_link_report(tp);
} else if (netif_msg_link(tp)) {
printk(KERN_INFO PFX "%s: Link is up at %d Mbps, %s duplex.\n",
tp->dev->name,
(tp->link_config.active_speed == SPEED_1000 ?
1000 :
(tp->link_config.active_speed == SPEED_100 ?
100 : 10)),
(tp->link_config.active_duplex == DUPLEX_FULL ?
"full" : "half"));
printk(KERN_INFO PFX
"%s: Flow control is %s for TX and %s for RX.\n",
tp->dev->name,
(tp->link_config.active_flowctrl & FLOW_CTRL_TX) ?
"on" : "off",
(tp->link_config.active_flowctrl & FLOW_CTRL_RX) ?
"on" : "off");
tg3_ump_link_report(tp);
}
}
static u16 tg3_advert_flowctrl_1000T(u8 flow_ctrl)
{
u16 miireg;
if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
miireg = ADVERTISE_PAUSE_CAP;
else if (flow_ctrl & FLOW_CTRL_TX)
miireg = ADVERTISE_PAUSE_ASYM;
else if (flow_ctrl & FLOW_CTRL_RX)
miireg = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
else
miireg = 0;
return miireg;
}
static u16 tg3_advert_flowctrl_1000X(u8 flow_ctrl)
{
u16 miireg;
if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
miireg = ADVERTISE_1000XPAUSE;
else if (flow_ctrl & FLOW_CTRL_TX)
miireg = ADVERTISE_1000XPSE_ASYM;
else if (flow_ctrl & FLOW_CTRL_RX)
miireg = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
else
miireg = 0;
return miireg;
}
static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
{
u8 cap = 0;
if (lcladv & ADVERTISE_1000XPAUSE) {
if (lcladv & ADVERTISE_1000XPSE_ASYM) {
if (rmtadv & LPA_1000XPAUSE)
cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
else if (rmtadv & LPA_1000XPAUSE_ASYM)
cap = FLOW_CTRL_RX;
} else {
if (rmtadv & LPA_1000XPAUSE)
cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
}
} else if (lcladv & ADVERTISE_1000XPSE_ASYM) {
if ((rmtadv & LPA_1000XPAUSE) && (rmtadv & LPA_1000XPAUSE_ASYM))
cap = FLOW_CTRL_TX;
}
return cap;
}
static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
{
u8 autoneg;
u8 flowctrl = 0;
u32 old_rx_mode = tp->rx_mode;
u32 old_tx_mode = tp->tx_mode;
if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
autoneg = tp->mdio_bus->phy_map[PHY_ADDR]->autoneg;
else
autoneg = tp->link_config.autoneg;
if (autoneg == AUTONEG_ENABLE &&
(tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)) {
if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
else
flowctrl = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
} else
flowctrl = tp->link_config.flowctrl;
tp->link_config.active_flowctrl = flowctrl;
if (flowctrl & FLOW_CTRL_RX)
tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
else
tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
if (old_rx_mode != tp->rx_mode)
tw32_f(MAC_RX_MODE, tp->rx_mode);
if (flowctrl & FLOW_CTRL_TX)
tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
else
tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
if (old_tx_mode != tp->tx_mode)
tw32_f(MAC_TX_MODE, tp->tx_mode);
}
static void tg3_adjust_link(struct net_device *dev)
{
u8 oldflowctrl, linkmesg = 0;
u32 mac_mode, lcl_adv, rmt_adv;
struct tg3 *tp = netdev_priv(dev);
struct phy_device *phydev = tp->mdio_bus->phy_map[PHY_ADDR];
spin_lock(&tp->lock);
mac_mode = tp->mac_mode & ~(MAC_MODE_PORT_MODE_MASK |
MAC_MODE_HALF_DUPLEX);
oldflowctrl = tp->link_config.active_flowctrl;
if (phydev->link) {
lcl_adv = 0;
rmt_adv = 0;
if (phydev->speed == SPEED_100 || phydev->speed == SPEED_10)
mac_mode |= MAC_MODE_PORT_MODE_MII;
else
mac_mode |= MAC_MODE_PORT_MODE_GMII;
if (phydev->duplex == DUPLEX_HALF)
mac_mode |= MAC_MODE_HALF_DUPLEX;
else {
lcl_adv = tg3_advert_flowctrl_1000T(
tp->link_config.flowctrl);
if (phydev->pause)
rmt_adv = LPA_PAUSE_CAP;
if (phydev->asym_pause)
rmt_adv |= LPA_PAUSE_ASYM;
}
tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
} else
mac_mode |= MAC_MODE_PORT_MODE_GMII;
if (mac_mode != tp->mac_mode) {
tp->mac_mode = mac_mode;
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
if (phydev->speed == SPEED_10)
tw32(MAC_MI_STAT,
MAC_MI_STAT_10MBPS_MODE |
MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
else
tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
}
if (phydev->speed == SPEED_1000 && phydev->duplex == DUPLEX_HALF)
tw32(MAC_TX_LENGTHS,
((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
(6 << TX_LENGTHS_IPG_SHIFT) |
(0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
else
tw32(MAC_TX_LENGTHS,
((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
(6 << TX_LENGTHS_IPG_SHIFT) |
(32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
if ((phydev->link && tp->link_config.active_speed == SPEED_INVALID) ||
(!phydev->link && tp->link_config.active_speed != SPEED_INVALID) ||
phydev->speed != tp->link_config.active_speed ||
phydev->duplex != tp->link_config.active_duplex ||
oldflowctrl != tp->link_config.active_flowctrl)
linkmesg = 1;
tp->link_config.active_speed = phydev->speed;
tp->link_config.active_duplex = phydev->duplex;
spin_unlock(&tp->lock);
if (linkmesg)
tg3_link_report(tp);
}
static int tg3_phy_init(struct tg3 *tp)
{
struct phy_device *phydev;
if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED)
return 0;
/* Bring the PHY back to a known state. */
tg3_bmcr_reset(tp);
phydev = tp->mdio_bus->phy_map[PHY_ADDR];
/* Attach the MAC to the PHY. */
phydev = phy_connect(tp->dev, dev_name(&phydev->dev), tg3_adjust_link,
phydev->dev_flags, phydev->interface);
if (IS_ERR(phydev)) {
printk(KERN_ERR "%s: Could not attach to PHY\n", tp->dev->name);
return PTR_ERR(phydev);
}
/* Mask with MAC supported features. */
switch (phydev->interface) {
case PHY_INTERFACE_MODE_GMII:
case PHY_INTERFACE_MODE_RGMII:
if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
phydev->supported &= (PHY_GBIT_FEATURES |
SUPPORTED_Pause |
SUPPORTED_Asym_Pause);
break;
}
/* fallthru */
case PHY_INTERFACE_MODE_MII:
phydev->supported &= (PHY_BASIC_FEATURES |
SUPPORTED_Pause |
SUPPORTED_Asym_Pause);
break;
default:
phy_disconnect(tp->mdio_bus->phy_map[PHY_ADDR]);
return -EINVAL;
}
tp->tg3_flags3 |= TG3_FLG3_PHY_CONNECTED;
phydev->advertising = phydev->supported;
return 0;
}
static void tg3_phy_start(struct tg3 *tp)
{
struct phy_device *phydev;
if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
return;
phydev = tp->mdio_bus->phy_map[PHY_ADDR];
if (tp->link_config.phy_is_low_power) {
tp->link_config.phy_is_low_power = 0;
phydev->speed = tp->link_config.orig_speed;
phydev->duplex = tp->link_config.orig_duplex;
phydev->autoneg = tp->link_config.orig_autoneg;
phydev->advertising = tp->link_config.orig_advertising;
}
phy_start(phydev);
phy_start_aneg(phydev);
}
static void tg3_phy_stop(struct tg3 *tp)
{
if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
return;
phy_stop(tp->mdio_bus->phy_map[PHY_ADDR]);
}
static void tg3_phy_fini(struct tg3 *tp)
{
if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) {
phy_disconnect(tp->mdio_bus->phy_map[PHY_ADDR]);
tp->tg3_flags3 &= ~TG3_FLG3_PHY_CONNECTED;
}
}
static void tg3_phydsp_write(struct tg3 *tp, u32 reg, u32 val)
{
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val);
}
static void tg3_phy_toggle_apd(struct tg3 *tp, bool enable)
{
u32 reg;
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
return;
reg = MII_TG3_MISC_SHDW_WREN |
MII_TG3_MISC_SHDW_SCR5_SEL |
MII_TG3_MISC_SHDW_SCR5_LPED |
MII_TG3_MISC_SHDW_SCR5_DLPTLM |
MII_TG3_MISC_SHDW_SCR5_SDTL |
MII_TG3_MISC_SHDW_SCR5_C125OE;
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 || !enable)
reg |= MII_TG3_MISC_SHDW_SCR5_DLLAPD;
tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
reg = MII_TG3_MISC_SHDW_WREN |
MII_TG3_MISC_SHDW_APD_SEL |
MII_TG3_MISC_SHDW_APD_WKTM_84MS;
if (enable)
reg |= MII_TG3_MISC_SHDW_APD_ENABLE;
tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
}
static void tg3_phy_toggle_automdix(struct tg3 *tp, int enable)
{
u32 phy;
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
return;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
u32 ephy;
if (!tg3_readphy(tp, MII_TG3_EPHY_TEST, &ephy)) {
tg3_writephy(tp, MII_TG3_EPHY_TEST,
ephy | MII_TG3_EPHY_SHADOW_EN);
if (!tg3_readphy(tp, MII_TG3_EPHYTST_MISCCTRL, &phy)) {
if (enable)
phy |= MII_TG3_EPHYTST_MISCCTRL_MDIX;
else
phy &= ~MII_TG3_EPHYTST_MISCCTRL_MDIX;
tg3_writephy(tp, MII_TG3_EPHYTST_MISCCTRL, phy);
}
tg3_writephy(tp, MII_TG3_EPHY_TEST, ephy);
}
} else {
phy = MII_TG3_AUXCTL_MISC_RDSEL_MISC |
MII_TG3_AUXCTL_SHDWSEL_MISC;
if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, phy) &&
!tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy)) {
if (enable)
phy |= MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
else
phy &= ~MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
phy |= MII_TG3_AUXCTL_MISC_WREN;
tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
}
}
}
static void tg3_phy_set_wirespeed(struct tg3 *tp)
{
u32 val;
if (tp->tg3_flags2 & TG3_FLG2_NO_ETH_WIRE_SPEED)
return;
if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x7007) &&
!tg3_readphy(tp, MII_TG3_AUX_CTRL, &val))
tg3_writephy(tp, MII_TG3_AUX_CTRL,
(val | (1 << 15) | (1 << 4)));
}
static void tg3_phy_apply_otp(struct tg3 *tp)
{
u32 otp, phy;
if (!tp->phy_otp)
return;
otp = tp->phy_otp;
/* Enable SM_DSP clock and tx 6dB coding. */
phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
MII_TG3_AUXCTL_ACTL_SMDSP_ENA |
MII_TG3_AUXCTL_ACTL_TX_6DB;
tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
phy = ((otp & TG3_OTP_AGCTGT_MASK) >> TG3_OTP_AGCTGT_SHIFT);
phy |= MII_TG3_DSP_TAP1_AGCTGT_DFLT;
tg3_phydsp_write(tp, MII_TG3_DSP_TAP1, phy);
phy = ((otp & TG3_OTP_HPFFLTR_MASK) >> TG3_OTP_HPFFLTR_SHIFT) |
((otp & TG3_OTP_HPFOVER_MASK) >> TG3_OTP_HPFOVER_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH0, phy);
phy = ((otp & TG3_OTP_LPFDIS_MASK) >> TG3_OTP_LPFDIS_SHIFT);
phy |= MII_TG3_DSP_AADJ1CH3_ADCCKADJ;
tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH3, phy);
phy = ((otp & TG3_OTP_VDAC_MASK) >> TG3_OTP_VDAC_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_EXP75, phy);
phy = ((otp & TG3_OTP_10BTAMP_MASK) >> TG3_OTP_10BTAMP_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_EXP96, phy);
phy = ((otp & TG3_OTP_ROFF_MASK) >> TG3_OTP_ROFF_SHIFT) |
((otp & TG3_OTP_RCOFF_MASK) >> TG3_OTP_RCOFF_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_EXP97, phy);
/* Turn off SM_DSP clock. */
phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
MII_TG3_AUXCTL_ACTL_TX_6DB;
tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
}
static int tg3_wait_macro_done(struct tg3 *tp)
{
int limit = 100;
while (limit--) {
u32 tmp32;
if (!tg3_readphy(tp, 0x16, &tmp32)) {
if ((tmp32 & 0x1000) == 0)
break;
}
}
if (limit < 0)
return -EBUSY;
return 0;
}
static int tg3_phy_write_and_check_testpat(struct tg3 *tp, int *resetp)
{
static const u32 test_pat[4][6] = {
{ 0x00005555, 0x00000005, 0x00002aaa, 0x0000000a, 0x00003456, 0x00000003 },
{ 0x00002aaa, 0x0000000a, 0x00003333, 0x00000003, 0x0000789a, 0x00000005 },
{ 0x00005a5a, 0x00000005, 0x00002a6a, 0x0000000a, 0x00001bcd, 0x00000003 },
{ 0x00002a5a, 0x0000000a, 0x000033c3, 0x00000003, 0x00002ef1, 0x00000005 }
};
int chan;
for (chan = 0; chan < 4; chan++) {
int i;
tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
(chan * 0x2000) | 0x0200);
tg3_writephy(tp, 0x16, 0x0002);
for (i = 0; i < 6; i++)
tg3_writephy(tp, MII_TG3_DSP_RW_PORT,
test_pat[chan][i]);
tg3_writephy(tp, 0x16, 0x0202);
if (tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
(chan * 0x2000) | 0x0200);
tg3_writephy(tp, 0x16, 0x0082);
if (tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
tg3_writephy(tp, 0x16, 0x0802);
if (tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
for (i = 0; i < 6; i += 2) {
u32 low, high;
if (tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &low) ||
tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &high) ||
tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
low &= 0x7fff;
high &= 0x000f;
if (low != test_pat[chan][i] ||
high != test_pat[chan][i+1]) {
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000b);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4001);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4005);
return -EBUSY;
}
}
}
return 0;
}
static int tg3_phy_reset_chanpat(struct tg3 *tp)
{
int chan;
for (chan = 0; chan < 4; chan++) {
int i;
tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
(chan * 0x2000) | 0x0200);
tg3_writephy(tp, 0x16, 0x0002);
for (i = 0; i < 6; i++)
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x000);
tg3_writephy(tp, 0x16, 0x0202);
if (tg3_wait_macro_done(tp))
return -EBUSY;
}
return 0;
}
static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
{
u32 reg32, phy9_orig;
int retries, do_phy_reset, err;
retries = 10;
do_phy_reset = 1;
do {
if (do_phy_reset) {
err = tg3_bmcr_reset(tp);
if (err)
return err;
do_phy_reset = 0;
}
/* Disable transmitter and interrupt. */
if (tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32))
continue;
reg32 |= 0x3000;
tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
/* Set full-duplex, 1000 mbps. */
tg3_writephy(tp, MII_BMCR,
BMCR_FULLDPLX | TG3_BMCR_SPEED1000);
/* Set to master mode. */
if (tg3_readphy(tp, MII_TG3_CTRL, &phy9_orig))
continue;
tg3_writephy(tp, MII_TG3_CTRL,
(MII_TG3_CTRL_AS_MASTER |
MII_TG3_CTRL_ENABLE_AS_MASTER));
/* Enable SM_DSP_CLOCK and 6dB. */
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
/* Block the PHY control access. */
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8005);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0800);
err = tg3_phy_write_and_check_testpat(tp, &do_phy_reset);
if (!err)
break;
} while (--retries);
err = tg3_phy_reset_chanpat(tp);
if (err)
return err;
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8005);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0000);
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8200);
tg3_writephy(tp, 0x16, 0x0000);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
/* Set Extended packet length bit for jumbo frames */
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4400);
}
else {
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
}
tg3_writephy(tp, MII_TG3_CTRL, phy9_orig);
if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32)) {
reg32 &= ~0x3000;
tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
} else if (!err)
err = -EBUSY;
return err;
}
/* This will reset the tigon3 PHY if there is no valid
* link unless the FORCE argument is non-zero.
*/
static int tg3_phy_reset(struct tg3 *tp)
{
u32 cpmuctrl;
u32 phy_status;
int err;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
u32 val;
val = tr32(GRC_MISC_CFG);
tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
udelay(40);
}
err = tg3_readphy(tp, MII_BMSR, &phy_status);
err |= tg3_readphy(tp, MII_BMSR, &phy_status);
if (err != 0)
return -EBUSY;
if (netif_running(tp->dev) && netif_carrier_ok(tp->dev)) {
netif_carrier_off(tp->dev);
tg3_link_report(tp);
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
err = tg3_phy_reset_5703_4_5(tp);
if (err)
return err;
goto out;
}
cpmuctrl = 0;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
cpmuctrl = tr32(TG3_CPMU_CTRL);
if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY)
tw32(TG3_CPMU_CTRL,
cpmuctrl & ~CPMU_CTRL_GPHY_10MB_RXONLY);
}
err = tg3_bmcr_reset(tp);
if (err)
return err;
if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY) {
u32 phy;
phy = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, phy);
tw32(TG3_CPMU_CTRL, cpmuctrl);
}
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
u32 val;
val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
if ((val & CPMU_LSPD_1000MB_MACCLK_MASK) ==
CPMU_LSPD_1000MB_MACCLK_12_5) {
val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
udelay(40);
tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
}
}
tg3_phy_apply_otp(tp);
if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
tg3_phy_toggle_apd(tp, true);
else
tg3_phy_toggle_apd(tp, false);
out:
if (tp->tg3_flags2 & TG3_FLG2_PHY_ADC_BUG) {
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x2aaa);
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0323);
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
}
if (tp->tg3_flags2 & TG3_FLG2_PHY_5704_A0_BUG) {
tg3_writephy(tp, 0x1c, 0x8d68);
tg3_writephy(tp, 0x1c, 0x8d68);
}
if (tp->tg3_flags2 & TG3_FLG2_PHY_BER_BUG) {
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x310b);
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x9506);
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x401f);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x14e2);
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
}
else if (tp->tg3_flags2 & TG3_FLG2_PHY_JITTER_BUG) {
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
if (tp->tg3_flags2 & TG3_FLG2_PHY_ADJUST_TRIM) {
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x110b);
tg3_writephy(tp, MII_TG3_TEST1,
MII_TG3_TEST1_TRIM_EN | 0x4);
} else
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x010b);
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
}
/* Set Extended packet length bit (bit 14) on all chips that */
/* support jumbo frames */
if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401) {
/* Cannot do read-modify-write on 5401 */
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
} else if (tp->tg3_flags2 & TG3_FLG2_JUMBO_CAPABLE) {
u32 phy_reg;
/* Set bit 14 with read-modify-write to preserve other bits */
if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0007) &&
!tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy_reg))
tg3_writephy(tp, MII_TG3_AUX_CTRL, phy_reg | 0x4000);
}
/* Set phy register 0x10 bit 0 to high fifo elasticity to support
* jumbo frames transmission.
*/
if (tp->tg3_flags2 & TG3_FLG2_JUMBO_CAPABLE) {
u32 phy_reg;
if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &phy_reg))
tg3_writephy(tp, MII_TG3_EXT_CTRL,
phy_reg | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
/* adjust output voltage */
tg3_writephy(tp, MII_TG3_EPHY_PTEST, 0x12);
}
tg3_phy_toggle_automdix(tp, 1);
tg3_phy_set_wirespeed(tp);
return 0;
}
static void tg3_frob_aux_power(struct tg3 *tp)
{
struct tg3 *tp_peer = tp;
if ((tp->tg3_flags2 & TG3_FLG2_IS_NIC) == 0)
return;
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714)) {
struct net_device *dev_peer;
dev_peer = pci_get_drvdata(tp->pdev_peer);
/* remove_one() may have been run on the peer. */
if (!dev_peer)
tp_peer = tp;
else
tp_peer = netdev_priv(dev_peer);
}
if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0 ||
(tp_peer->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
(tp_peer->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0) {
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
(GRC_LCLCTRL_GPIO_OE0 |
GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OE2 |
GRC_LCLCTRL_GPIO_OUTPUT0 |
GRC_LCLCTRL_GPIO_OUTPUT1),
100);
} else if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
/* The 5761 non-e device swaps GPIO 0 and GPIO 2. */
u32 grc_local_ctrl = GRC_LCLCTRL_GPIO_OE0 |
GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OE2 |
GRC_LCLCTRL_GPIO_OUTPUT0 |
GRC_LCLCTRL_GPIO_OUTPUT1 |
tp->grc_local_ctrl;
tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT2;
tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT0;
tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
} else {
u32 no_gpio2;
u32 grc_local_ctrl = 0;
if (tp_peer != tp &&
(tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
return;
/* Workaround to prevent overdrawing Amps. */
if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
ASIC_REV_5714) {
grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
grc_local_ctrl, 100);
}
/* On 5753 and variants, GPIO2 cannot be used. */
no_gpio2 = tp->nic_sram_data_cfg &
NIC_SRAM_DATA_CFG_NO_GPIO2;
grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OE2 |
GRC_LCLCTRL_GPIO_OUTPUT1 |
GRC_LCLCTRL_GPIO_OUTPUT2;
if (no_gpio2) {
grc_local_ctrl &= ~(GRC_LCLCTRL_GPIO_OE2 |
GRC_LCLCTRL_GPIO_OUTPUT2);
}
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
grc_local_ctrl, 100);
grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT0;
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
grc_local_ctrl, 100);
if (!no_gpio2) {
grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT2;
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
grc_local_ctrl, 100);
}
}
} else {
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
if (tp_peer != tp &&
(tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
return;
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
(GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OUTPUT1), 100);
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
GRC_LCLCTRL_GPIO_OE1, 100);
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
(GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OUTPUT1), 100);
}
}
}
static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
{
if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
return 1;
else if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5411) {
if (speed != SPEED_10)
return 1;
} else if (speed == SPEED_10)
return 1;
return 0;
}
static int tg3_setup_phy(struct tg3 *, int);
#define RESET_KIND_SHUTDOWN 0
#define RESET_KIND_INIT 1
#define RESET_KIND_SUSPEND 2
static void tg3_write_sig_post_reset(struct tg3 *, int);
static int tg3_halt_cpu(struct tg3 *, u32);
static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
{
u32 val;
if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
u32 sg_dig_ctrl = tr32(SG_DIG_CTRL);
u32 serdes_cfg = tr32(MAC_SERDES_CFG);
sg_dig_ctrl |=
SG_DIG_USING_HW_AUTONEG | SG_DIG_SOFT_RESET;
tw32(SG_DIG_CTRL, sg_dig_ctrl);
tw32(MAC_SERDES_CFG, serdes_cfg | (1 << 15));
}
return;
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
tg3_bmcr_reset(tp);
val = tr32(GRC_MISC_CFG);
tw32_f(GRC_MISC_CFG, val | GRC_MISC_CFG_EPHY_IDDQ);
udelay(40);
return;
} else if (do_low_power) {
tg3_writephy(tp, MII_TG3_EXT_CTRL,
MII_TG3_EXT_CTRL_FORCE_LED_OFF);
tg3_writephy(tp, MII_TG3_AUX_CTRL,
MII_TG3_AUXCTL_SHDWSEL_PWRCTL |
MII_TG3_AUXCTL_PCTL_100TX_LPWR |
MII_TG3_AUXCTL_PCTL_SPR_ISOLATE |
MII_TG3_AUXCTL_PCTL_VREG_11V);
}
/* The PHY should not be powered down on some chips because
* of bugs.
*/
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 &&
(tp->tg3_flags2 & TG3_FLG2_MII_SERDES)))
return;
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
val |= CPMU_LSPD_1000MB_MACCLK_12_5;
tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
}
tg3_writephy(tp, MII_BMCR, BMCR_PDOWN);
}
/* tp->lock is held. */
static int tg3_nvram_lock(struct tg3 *tp)
{
if (tp->tg3_flags & TG3_FLAG_NVRAM) {
int i;
if (tp->nvram_lock_cnt == 0) {
tw32(NVRAM_SWARB, SWARB_REQ_SET1);
for (i = 0; i < 8000; i++) {
if (tr32(NVRAM_SWARB) & SWARB_GNT1)
break;
udelay(20);
}
if (i == 8000) {
tw32(NVRAM_SWARB, SWARB_REQ_CLR1);
return -ENODEV;
}
}
tp->nvram_lock_cnt++;
}
return 0;
}
/* tp->lock is held. */
static void tg3_nvram_unlock(struct tg3 *tp)
{
if (tp->tg3_flags & TG3_FLAG_NVRAM) {
if (tp->nvram_lock_cnt > 0)
tp->nvram_lock_cnt--;
if (tp->nvram_lock_cnt == 0)
tw32_f(NVRAM_SWARB, SWARB_REQ_CLR1);
}
}
/* tp->lock is held. */
static void tg3_enable_nvram_access(struct tg3 *tp)
{
if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
!(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM)) {
u32 nvaccess = tr32(NVRAM_ACCESS);
tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE);
}
}
/* tp->lock is held. */
static void tg3_disable_nvram_access(struct tg3 *tp)
{
if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
!(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM)) {
u32 nvaccess = tr32(NVRAM_ACCESS);
tw32(NVRAM_ACCESS, nvaccess & ~ACCESS_ENABLE);
}
}
static int tg3_nvram_read_using_eeprom(struct tg3 *tp,
u32 offset, u32 *val)
{
u32 tmp;
int i;
if (offset > EEPROM_ADDR_ADDR_MASK || (offset % 4) != 0)
return -EINVAL;
tmp = tr32(GRC_EEPROM_ADDR) & ~(EEPROM_ADDR_ADDR_MASK |
EEPROM_ADDR_DEVID_MASK |
EEPROM_ADDR_READ);
tw32(GRC_EEPROM_ADDR,
tmp |
(0 << EEPROM_ADDR_DEVID_SHIFT) |
((offset << EEPROM_ADDR_ADDR_SHIFT) &
EEPROM_ADDR_ADDR_MASK) |
EEPROM_ADDR_READ | EEPROM_ADDR_START);
for (i = 0; i < 1000; i++) {
tmp = tr32(GRC_EEPROM_ADDR);
if (tmp & EEPROM_ADDR_COMPLETE)
break;
msleep(1);
}
if (!(tmp & EEPROM_ADDR_COMPLETE))
return -EBUSY;
tmp = tr32(GRC_EEPROM_DATA);
/*
* The data will always be opposite the native endian
* format. Perform a blind byteswap to compensate.
*/
*val = swab32(tmp);
return 0;
}
#define NVRAM_CMD_TIMEOUT 10000
static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd)
{
int i;
tw32(NVRAM_CMD, nvram_cmd);
for (i = 0; i < NVRAM_CMD_TIMEOUT; i++) {
udelay(10);
if (tr32(NVRAM_CMD) & NVRAM_CMD_DONE) {
udelay(10);
break;
}
}
if (i == NVRAM_CMD_TIMEOUT)
return -EBUSY;
return 0;
}
static u32 tg3_nvram_phys_addr(struct tg3 *tp, u32 addr)
{
if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
(tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
(tp->tg3_flags2 & TG3_FLG2_FLASH) &&
!(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
(tp->nvram_jedecnum == JEDEC_ATMEL))
addr = ((addr / tp->nvram_pagesize) <<
ATMEL_AT45DB0X1B_PAGE_POS) +
(addr % tp->nvram_pagesize);
return addr;
}
static u32 tg3_nvram_logical_addr(struct tg3 *tp, u32 addr)
{
if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
(tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
(tp->tg3_flags2 & TG3_FLG2_FLASH) &&
!(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
(tp->nvram_jedecnum == JEDEC_ATMEL))
addr = ((addr >> ATMEL_AT45DB0X1B_PAGE_POS) *
tp->nvram_pagesize) +
(addr & ((1 << ATMEL_AT45DB0X1B_PAGE_POS) - 1));
return addr;
}
/* NOTE: Data read in from NVRAM is byteswapped according to
* the byteswapping settings for all other register accesses.
* tg3 devices are BE devices, so on a BE machine, the data
* returned will be exactly as it is seen in NVRAM. On a LE
* machine, the 32-bit value will be byteswapped.
*/
static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val)
{
int ret;
if (!(tp->tg3_flags & TG3_FLAG_NVRAM))
return tg3_nvram_read_using_eeprom(tp, offset, val);
offset = tg3_nvram_phys_addr(tp, offset);
if (offset > NVRAM_ADDR_MSK)
return -EINVAL;
ret = tg3_nvram_lock(tp);
if (ret)
return ret;
tg3_enable_nvram_access(tp);
tw32(NVRAM_ADDR, offset);
ret = tg3_nvram_exec_cmd(tp, NVRAM_CMD_RD | NVRAM_CMD_GO |
NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_DONE);
if (ret == 0)
*val = tr32(NVRAM_RDDATA);
tg3_disable_nvram_access(tp);
tg3_nvram_unlock(tp);
return ret;
}
/* Ensures NVRAM data is in bytestream format. */
static int tg3_nvram_read_be32(struct tg3 *tp, u32 offset, __be32 *val)
{
u32 v;
int res = tg3_nvram_read(tp, offset, &v);
if (!res)
*val = cpu_to_be32(v);
return res;
}
/* tp->lock is held. */
static void __tg3_set_mac_addr(struct tg3 *tp, int skip_mac_1)
{
u32 addr_high, addr_low;
int i;
addr_high = ((tp->dev->dev_addr[0] << 8) |
tp->dev->dev_addr[1]);
addr_low = ((tp->dev->dev_addr[2] << 24) |
(tp->dev->dev_addr[3] << 16) |
(tp->dev->dev_addr[4] << 8) |
(tp->dev->dev_addr[5] << 0));
for (i = 0; i < 4; i++) {
if (i == 1 && skip_mac_1)
continue;
tw32(MAC_ADDR_0_HIGH + (i * 8), addr_high);
tw32(MAC_ADDR_0_LOW + (i * 8), addr_low);
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
for (i = 0; i < 12; i++) {
tw32(MAC_EXTADDR_0_HIGH + (i * 8), addr_high);
tw32(MAC_EXTADDR_0_LOW + (i * 8), addr_low);
}
}
addr_high = (tp->dev->dev_addr[0] +
tp->dev->dev_addr[1] +
tp->dev->dev_addr[2] +
tp->dev->dev_addr[3] +
tp->dev->dev_addr[4] +
tp->dev->dev_addr[5]) &
TX_BACKOFF_SEED_MASK;
tw32(MAC_TX_BACKOFF_SEED, addr_high);
}
static int tg3_set_power_state(struct tg3 *tp, pci_power_t state)
{
u32 misc_host_ctrl;
bool device_should_wake, do_low_power;
/* Make sure register accesses (indirect or otherwise)
* will function correctly.
*/
pci_write_config_dword(tp->pdev,
TG3PCI_MISC_HOST_CTRL,
tp->misc_host_ctrl);
switch (state) {
case PCI_D0:
pci_enable_wake(tp->pdev, state, false);
pci_set_power_state(tp->pdev, PCI_D0);
/* Switch out of Vaux if it is a NIC */
if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl, 100);
return 0;
case PCI_D1:
case PCI_D2:
case PCI_D3hot:
break;
default:
printk(KERN_ERR PFX "%s: Invalid power state (D%d) requested\n",
tp->dev->name, state);
return -EINVAL;
}
/* Restore the CLKREQ setting. */
if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
u16 lnkctl;
pci_read_config_word(tp->pdev,
tp->pcie_cap + PCI_EXP_LNKCTL,
&lnkctl);
lnkctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
pci_write_config_word(tp->pdev,
tp->pcie_cap + PCI_EXP_LNKCTL,
lnkctl);
}
misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
tw32(TG3PCI_MISC_HOST_CTRL,
misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT);
device_should_wake = pci_pme_capable(tp->pdev, state) &&
device_may_wakeup(&tp->pdev->dev) &&
(tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
do_low_power = false;
if ((tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) &&
!tp->link_config.phy_is_low_power) {
struct phy_device *phydev;
u32 phyid, advertising;
phydev = tp->mdio_bus->phy_map[PHY_ADDR];
tp->link_config.phy_is_low_power = 1;
tp->link_config.orig_speed = phydev->speed;
tp->link_config.orig_duplex = phydev->duplex;
tp->link_config.orig_autoneg = phydev->autoneg;
tp->link_config.orig_advertising = phydev->advertising;
advertising = ADVERTISED_TP |
ADVERTISED_Pause |
ADVERTISED_Autoneg |
ADVERTISED_10baseT_Half;
if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
device_should_wake) {
if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
advertising |=
ADVERTISED_100baseT_Half |
ADVERTISED_100baseT_Full |
ADVERTISED_10baseT_Full;
else
advertising |= ADVERTISED_10baseT_Full;
}
phydev->advertising = advertising;
phy_start_aneg(phydev);
phyid = phydev->drv->phy_id & phydev->drv->phy_id_mask;
if (phyid != TG3_PHY_ID_BCMAC131) {
phyid &= TG3_PHY_OUI_MASK;
if (phyid == TG3_PHY_OUI_1 ||
phyid == TG3_PHY_OUI_2 ||
phyid == TG3_PHY_OUI_3)
do_low_power = true;
}
}
} else {
do_low_power = true;
if (tp->link_config.phy_is_low_power == 0) {
tp->link_config.phy_is_low_power = 1;
tp->link_config.orig_speed = tp->link_config.speed;
tp->link_config.orig_duplex = tp->link_config.duplex;
tp->link_config.orig_autoneg = tp->link_config.autoneg;
}
if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)) {
tp->link_config.speed = SPEED_10;
tp->link_config.duplex = DUPLEX_HALF;
tp->link_config.autoneg = AUTONEG_ENABLE;
tg3_setup_phy(tp, 0);
}
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
u32 val;
val = tr32(GRC_VCPU_EXT_CTRL);
tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_DISABLE_WOL);
} else if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
int i;
u32 val;
for (i = 0; i < 200; i++) {
tg3_read_mem(tp, NIC_SRAM_FW_ASF_STATUS_MBOX, &val);
if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
break;
msleep(1);
}
}
if (tp->tg3_flags & TG3_FLAG_WOL_CAP)
tg3_write_mem(tp, NIC_SRAM_WOL_MBOX, WOL_SIGNATURE |
WOL_DRV_STATE_SHUTDOWN |
WOL_DRV_WOL |
WOL_SET_MAGIC_PKT);
if (device_should_wake) {
u32 mac_mode;
if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
if (do_low_power) {
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x5a);
udelay(40);
}
if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
mac_mode = MAC_MODE_PORT_MODE_GMII;
else
mac_mode = MAC_MODE_PORT_MODE_MII;
mac_mode |= tp->mac_mode & MAC_MODE_LINK_POLARITY;
if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
ASIC_REV_5700) {
u32 speed = (tp->tg3_flags &
TG3_FLAG_WOL_SPEED_100MB) ?
SPEED_100 : SPEED_10;
if (tg3_5700_link_polarity(tp, speed))
mac_mode |= MAC_MODE_LINK_POLARITY;
else
mac_mode &= ~MAC_MODE_LINK_POLARITY;
}
} else {
mac_mode = MAC_MODE_PORT_MODE_TBI;
}
if (!(tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
tw32(MAC_LED_CTRL, tp->led_ctrl);
mac_mode |= MAC_MODE_MAGIC_PKT_ENABLE;
if (((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) &&
((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)))
mac_mode |= MAC_MODE_KEEP_FRAME_IN_WOL;
if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
mac_mode |= tp->mac_mode &
(MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
if (mac_mode & MAC_MODE_APE_TX_EN)
mac_mode |= MAC_MODE_TDE_ENABLE;
}
tw32_f(MAC_MODE, mac_mode);
udelay(100);
tw32_f(MAC_RX_MODE, RX_MODE_ENABLE);
udelay(10);
}
if (!(tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB) &&
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
u32 base_val;
base_val = tp->pci_clock_ctrl;
base_val |= (CLOCK_CTRL_RXCLK_DISABLE |
CLOCK_CTRL_TXCLK_DISABLE);
tw32_wait_f(TG3PCI_CLOCK_CTRL, base_val | CLOCK_CTRL_ALTCLK |
CLOCK_CTRL_PWRDOWN_PLL133, 40);
} else if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)) {
/* do nothing */
} else if (!((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))) {
u32 newbits1, newbits2;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
newbits1 = (CLOCK_CTRL_RXCLK_DISABLE |
CLOCK_CTRL_TXCLK_DISABLE |
CLOCK_CTRL_ALTCLK);
newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
} else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
newbits1 = CLOCK_CTRL_625_CORE;
newbits2 = newbits1 | CLOCK_CTRL_ALTCLK;
} else {
newbits1 = CLOCK_CTRL_ALTCLK;
newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
}
tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits1,
40);
tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits2,
40);
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
u32 newbits3;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
newbits3 = (CLOCK_CTRL_RXCLK_DISABLE |
CLOCK_CTRL_TXCLK_DISABLE |
CLOCK_CTRL_44MHZ_CORE);
} else {
newbits3 = CLOCK_CTRL_44MHZ_CORE;
}
tw32_wait_f(TG3PCI_CLOCK_CTRL,
tp->pci_clock_ctrl | newbits3, 40);
}
}
if (!(device_should_wake) &&
!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
tg3_power_down_phy(tp, do_low_power);
tg3_frob_aux_power(tp);
/* Workaround for unstable PLL clock */
if ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
(GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX)) {
u32 val = tr32(0x7d00);
val &= ~((1 << 16) | (1 << 4) | (1 << 2) | (1 << 1) | 1);
tw32(0x7d00, val);
if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
int err;
err = tg3_nvram_lock(tp);
tg3_halt_cpu(tp, RX_CPU_BASE);
if (!err)
tg3_nvram_unlock(tp);
}
}
tg3_write_sig_post_reset(tp, RESET_KIND_SHUTDOWN);
if (device_should_wake)
pci_enable_wake(tp->pdev, state, true);
/* Finally, set the new power state. */
pci_set_power_state(tp->pdev, state);
return 0;
}
static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)
{
switch (val & MII_TG3_AUX_STAT_SPDMASK) {
case MII_TG3_AUX_STAT_10HALF:
*speed = SPEED_10;
*duplex = DUPLEX_HALF;
break;
case MII_TG3_AUX_STAT_10FULL:
*speed = SPEED_10;
*duplex = DUPLEX_FULL;
break;
case MII_TG3_AUX_STAT_100HALF:
*speed = SPEED_100;
*duplex = DUPLEX_HALF;
break;
case MII_TG3_AUX_STAT_100FULL:
*speed = SPEED_100;
*duplex = DUPLEX_FULL;
break;
case MII_TG3_AUX_STAT_1000HALF:
*speed = SPEED_1000;
*duplex = DUPLEX_HALF;
break;
case MII_TG3_AUX_STAT_1000FULL:
*speed = SPEED_1000;
*duplex = DUPLEX_FULL;
break;
default:
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
*speed = (val & MII_TG3_AUX_STAT_100) ? SPEED_100 :
SPEED_10;
*duplex = (val & MII_TG3_AUX_STAT_FULL) ? DUPLEX_FULL :
DUPLEX_HALF;
break;
}
*speed = SPEED_INVALID;
*duplex = DUPLEX_INVALID;
break;
}
}
static void tg3_phy_copper_begin(struct tg3 *tp)
{
u32 new_adv;
int i;
if (tp->link_config.phy_is_low_power) {
/* Entering low power mode. Disable gigabit and
* 100baseT advertisements.
*/
tg3_writephy(tp, MII_TG3_CTRL, 0);
new_adv = (ADVERTISE_10HALF | ADVERTISE_10FULL |
ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
new_adv |= (ADVERTISE_100HALF | ADVERTISE_100FULL);
tg3_writephy(tp, MII_ADVERTISE, new_adv);
} else if (tp->link_config.speed == SPEED_INVALID) {
if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
tp->link_config.advertising &=
~(ADVERTISED_1000baseT_Half |
ADVERTISED_1000baseT_Full);
new_adv = ADVERTISE_CSMA;
if (tp->link_config.advertising & ADVERTISED_10baseT_Half)
new_adv |= ADVERTISE_10HALF;
if (tp->link_config.advertising & ADVERTISED_10baseT_Full)
new_adv |= ADVERTISE_10FULL;
if (tp->link_config.advertising & ADVERTISED_100baseT_Half)
new_adv |= ADVERTISE_100HALF;
if (tp->link_config.advertising & ADVERTISED_100baseT_Full)
new_adv |= ADVERTISE_100FULL;
new_adv |= tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
tg3_writephy(tp, MII_ADVERTISE, new_adv);
if (tp->link_config.advertising &
(ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full)) {
new_adv = 0;
if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
new_adv |= MII_TG3_CTRL_ADV_1000_HALF;
if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
new_adv |= MII_TG3_CTRL_ADV_1000_FULL;
if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY) &&
(tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
tp->pci_chip_rev_id == CHIPREV_ID_5701_B0))
new_adv |= (MII_TG3_CTRL_AS_MASTER |
MII_TG3_CTRL_ENABLE_AS_MASTER);
tg3_writephy(tp, MII_TG3_CTRL, new_adv);
} else {
tg3_writephy(tp, MII_TG3_CTRL, 0);
}
} else {
new_adv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
new_adv |= ADVERTISE_CSMA;
/* Asking for a specific link mode. */
if (tp->link_config.speed == SPEED_1000) {
tg3_writephy(tp, MII_ADVERTISE, new_adv);
if (tp->link_config.duplex == DUPLEX_FULL)
new_adv = MII_TG3_CTRL_ADV_1000_FULL;
else
new_adv = MII_TG3_CTRL_ADV_1000_HALF;
if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
new_adv |= (MII_TG3_CTRL_AS_MASTER |
MII_TG3_CTRL_ENABLE_AS_MASTER);
} else {
if (tp->link_config.speed == SPEED_100) {
if (tp->link_config.duplex == DUPLEX_FULL)
new_adv |= ADVERTISE_100FULL;
else
new_adv |= ADVERTISE_100HALF;
} else {
if (tp->link_config.duplex == DUPLEX_FULL)
new_adv |= ADVERTISE_10FULL;
else
new_adv |= ADVERTISE_10HALF;
}
tg3_writephy(tp, MII_ADVERTISE, new_adv);
new_adv = 0;
}
tg3_writephy(tp, MII_TG3_CTRL, new_adv);
}
if (tp->link_config.autoneg == AUTONEG_DISABLE &&
tp->link_config.speed != SPEED_INVALID) {
u32 bmcr, orig_bmcr;
tp->link_config.active_speed = tp->link_config.speed;
tp->link_config.active_duplex = tp->link_config.duplex;
bmcr = 0;
switch (tp->link_config.speed) {
default:
case SPEED_10:
break;
case SPEED_100:
bmcr |= BMCR_SPEED100;
break;
case SPEED_1000:
bmcr |= TG3_BMCR_SPEED1000;
break;
}
if (tp->link_config.duplex == DUPLEX_FULL)
bmcr |= BMCR_FULLDPLX;
if (!tg3_readphy(tp, MII_BMCR, &orig_bmcr) &&
(bmcr != orig_bmcr)) {
tg3_writephy(tp, MII_BMCR, BMCR_LOOPBACK);
for (i = 0; i < 1500; i++) {
u32 tmp;
udelay(10);
if (tg3_readphy(tp, MII_BMSR, &tmp) ||
tg3_readphy(tp, MII_BMSR, &tmp))
continue;
if (!(tmp & BMSR_LSTATUS)) {
udelay(40);
break;
}
}
tg3_writephy(tp, MII_BMCR, bmcr);
udelay(40);
}
} else {
tg3_writephy(tp, MII_BMCR,
BMCR_ANENABLE | BMCR_ANRESTART);
}
}
static int tg3_init_5401phy_dsp(struct tg3 *tp)
{
int err;
/* Turn off tap power management. */
/* Set Extended packet length bit */
err = tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x0012);
err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x1804);
err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x0013);
err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x1204);
err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8006);
err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0132);
err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8006);
err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0232);
err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0a20);
udelay(40);
return err;
}
static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask)
{
u32 adv_reg, all_mask = 0;
if (mask & ADVERTISED_10baseT_Half)
all_mask |= ADVERTISE_10HALF;
if (mask & ADVERTISED_10baseT_Full)
all_mask |= ADVERTISE_10FULL;
if (mask & ADVERTISED_100baseT_Half)
all_mask |= ADVERTISE_100HALF;
if (mask & ADVERTISED_100baseT_Full)
all_mask |= ADVERTISE_100FULL;
if (tg3_readphy(tp, MII_ADVERTISE, &adv_reg))
return 0;
if ((adv_reg & all_mask) != all_mask)
return 0;
if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
u32 tg3_ctrl;
all_mask = 0;
if (mask & ADVERTISED_1000baseT_Half)
all_mask |= ADVERTISE_1000HALF;
if (mask & ADVERTISED_1000baseT_Full)
all_mask |= ADVERTISE_1000FULL;
if (tg3_readphy(tp, MII_TG3_CTRL, &tg3_ctrl))
return 0;
if ((tg3_ctrl & all_mask) != all_mask)
return 0;
}
return 1;
}
static int tg3_adv_1000T_flowctrl_ok(struct tg3 *tp, u32 *lcladv, u32 *rmtadv)
{
u32 curadv, reqadv;
if (tg3_readphy(tp, MII_ADVERTISE, lcladv))
return 1;
curadv = *lcladv & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
reqadv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
if (tp->link_config.active_duplex == DUPLEX_FULL) {
if (curadv != reqadv)
return 0;
if (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)
tg3_readphy(tp, MII_LPA, rmtadv);
} else {
/* Reprogram the advertisement register, even if it
* does not affect the current link. If the link
* gets renegotiated in the future, we can save an
* additional renegotiation cycle by advertising
* it correctly in the first place.
*/
if (curadv != reqadv) {
*lcladv &= ~(ADVERTISE_PAUSE_CAP |
ADVERTISE_PAUSE_ASYM);
tg3_writephy(tp, MII_ADVERTISE, *lcladv | reqadv);
}
}
return 1;
}
static int tg3_setup_copper_phy(struct tg3 *tp, int force_reset)
{
int current_link_up;
u32 bmsr, dummy;
u32 lcl_adv, rmt_adv;
u16 current_speed;
u8 current_duplex;
int i, err;
tw32(MAC_EVENT, 0);
tw32_f(MAC_STATUS,
(MAC_STATUS_SYNC_CHANGED |
MAC_STATUS_CFG_CHANGED |
MAC_STATUS_MI_COMPLETION |
MAC_STATUS_LNKSTATE_CHANGED));
udelay(40);
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE,
(tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
udelay(80);
}
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x02);
/* Some third-party PHYs need to be reset on link going
* down.
*/
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
netif_carrier_ok(tp->dev)) {
tg3_readphy(tp, MII_BMSR, &bmsr);
if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
!(bmsr & BMSR_LSTATUS))
force_reset = 1;
}
if (force_reset)
tg3_phy_reset(tp);
if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401) {
tg3_readphy(tp, MII_BMSR, &bmsr);
if (tg3_readphy(tp, MII_BMSR, &bmsr) ||
!(tp->tg3_flags & TG3_FLAG_INIT_COMPLETE))
bmsr = 0;
if (!(bmsr & BMSR_LSTATUS)) {
err = tg3_init_5401phy_dsp(tp);
if (err)
return err;
tg3_readphy(tp, MII_BMSR, &bmsr);
for (i = 0; i < 1000; i++) {
udelay(10);
if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
(bmsr & BMSR_LSTATUS)) {
udelay(40);
break;
}
}
if ((tp->phy_id & PHY_ID_REV_MASK) == PHY_REV_BCM5401_B0 &&
!(bmsr & BMSR_LSTATUS) &&
tp->link_config.active_speed == SPEED_1000) {
err = tg3_phy_reset(tp);
if (!err)
err = tg3_init_5401phy_dsp(tp);
if (err)
return err;
}
}
} else if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
tp->pci_chip_rev_id == CHIPREV_ID_5701_B0) {
/* 5701 {A0,B0} CRC bug workaround */
tg3_writephy(tp, 0x15, 0x0a75);
tg3_writephy(tp, 0x1c, 0x8c68);
tg3_writephy(tp, 0x1c, 0x8d68);
tg3_writephy(tp, 0x1c, 0x8c68);
}
/* Clear pending interrupts... */
tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
if (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT)
tg3_writephy(tp, MII_TG3_IMASK, ~MII_TG3_INT_LINKCHG);
else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5906)
tg3_writephy(tp, MII_TG3_IMASK, ~0);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
if (tp->led_ctrl == LED_CTRL_MODE_PHY_1)
tg3_writephy(tp, MII_TG3_EXT_CTRL,
MII_TG3_EXT_CTRL_LNK3_LED_MODE);
else
tg3_writephy(tp, MII_TG3_EXT_CTRL, 0);
}
current_link_up = 0;
current_speed = SPEED_INVALID;
current_duplex = DUPLEX_INVALID;
if (tp->tg3_flags2 & TG3_FLG2_CAPACITIVE_COUPLING) {
u32 val;
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4007);
tg3_readphy(tp, MII_TG3_AUX_CTRL, &val);
if (!(val & (1 << 10))) {
val |= (1 << 10);
tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
goto relink;
}
}
bmsr = 0;
for (i = 0; i < 100; i++) {
tg3_readphy(tp, MII_BMSR, &bmsr);
if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
(bmsr & BMSR_LSTATUS))
break;
udelay(40);
}
if (bmsr & BMSR_LSTATUS) {
u32 aux_stat, bmcr;
tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat);
for (i = 0; i < 2000; i++) {
udelay(10);
if (!tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat) &&
aux_stat)
break;
}
tg3_aux_stat_to_speed_duplex(tp, aux_stat,
&current_speed,
&current_duplex);
bmcr = 0;
for (i = 0; i < 200; i++) {
tg3_readphy(tp, MII_BMCR, &bmcr);
if (tg3_readphy(tp, MII_BMCR, &bmcr))
continue;
if (bmcr && bmcr != 0x7fff)
break;
udelay(10);
}
lcl_adv = 0;
rmt_adv = 0;
tp->link_config.active_speed = current_speed;
tp->link_config.active_duplex = current_duplex;
if (tp->link_config.autoneg == AUTONEG_ENABLE) {
if ((bmcr & BMCR_ANENABLE) &&
tg3_copper_is_advertising_all(tp,
tp->link_config.advertising)) {
if (tg3_adv_1000T_flowctrl_ok(tp, &lcl_adv,
&rmt_adv))
current_link_up = 1;
}
} else {
if (!(bmcr & BMCR_ANENABLE) &&
tp->link_config.speed == current_speed &&
tp->link_config.duplex == current_duplex &&
tp->link_config.flowctrl ==
tp->link_config.active_flowctrl) {
current_link_up = 1;
}
}
if (current_link_up == 1 &&
tp->link_config.active_duplex == DUPLEX_FULL)
tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
}
relink:
if (current_link_up == 0 || tp->link_config.phy_is_low_power) {
u32 tmp;
tg3_phy_copper_begin(tp);
tg3_readphy(tp, MII_BMSR, &tmp);
if (!tg3_readphy(tp, MII_BMSR, &tmp) &&
(tmp & BMSR_LSTATUS))
current_link_up = 1;
}
tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
if (current_link_up == 1) {
if (tp->link_config.active_speed == SPEED_100 ||
tp->link_config.active_speed == SPEED_10)
tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
else
tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
} else
tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
if (tp->link_config.active_duplex == DUPLEX_HALF)
tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
if (current_link_up == 1 &&
tg3_5700_link_polarity(tp, tp->link_config.active_speed))
tp->mac_mode |= MAC_MODE_LINK_POLARITY;
else
tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
}
/* ??? Without this setting Netgear GA302T PHY does not
* ??? send/receive packets...
*/
if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5411 &&
tp->pci_chip_rev_id == CHIPREV_ID_5700_ALTIMA) {
tp->mi_mode |= MAC_MI_MODE_AUTO_POLL;
tw32_f(MAC_MI_MODE, tp->mi_mode);
udelay(80);
}
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
/* Polled via timer. */
tw32_f(MAC_EVENT, 0);
} else {
tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
}
udelay(40);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 &&
current_link_up == 1 &&
tp->link_config.active_speed == SPEED_1000 &&
((tp->tg3_flags & TG3_FLAG_PCIX_MODE) ||
(tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED))) {
udelay(120);
tw32_f(MAC_STATUS,
(MAC_STATUS_SYNC_CHANGED |
MAC_STATUS_CFG_CHANGED));
udelay(40);
tg3_write_mem(tp,
NIC_SRAM_FIRMWARE_MBOX,
NIC_SRAM_FIRMWARE_MBOX_MAGIC2);
}
/* Prevent send BD corruption. */
if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
u16 oldlnkctl, newlnkctl;
pci_read_config_word(tp->pdev,
tp->pcie_cap + PCI_EXP_LNKCTL,
&oldlnkctl);
if (tp->link_config.active_speed == SPEED_100 ||
tp->link_config.active_speed == SPEED_10)
newlnkctl = oldlnkctl & ~PCI_EXP_LNKCTL_CLKREQ_EN;
else
newlnkctl = oldlnkctl | PCI_EXP_LNKCTL_CLKREQ_EN;
if (newlnkctl != oldlnkctl)
pci_write_config_word(tp->pdev,
tp->pcie_cap + PCI_EXP_LNKCTL,
newlnkctl);
}
if (current_link_up != netif_carrier_ok(tp->dev)) {
if (current_link_up)
netif_carrier_on(tp->dev);
else
netif_carrier_off(tp->dev);
tg3_link_report(tp);
}
return 0;
}
struct tg3_fiber_aneginfo {
int state;
#define ANEG_STATE_UNKNOWN 0
#define ANEG_STATE_AN_ENABLE 1
#define ANEG_STATE_RESTART_INIT 2
#define ANEG_STATE_RESTART 3
#define ANEG_STATE_DISABLE_LINK_OK 4
#define ANEG_STATE_ABILITY_DETECT_INIT 5
#define ANEG_STATE_ABILITY_DETECT 6
#define ANEG_STATE_ACK_DETECT_INIT 7
#define ANEG_STATE_ACK_DETECT 8
#define ANEG_STATE_COMPLETE_ACK_INIT 9
#define ANEG_STATE_COMPLETE_ACK 10
#define ANEG_STATE_IDLE_DETECT_INIT 11
#define ANEG_STATE_IDLE_DETECT 12
#define ANEG_STATE_LINK_OK 13
#define ANEG_STATE_NEXT_PAGE_WAIT_INIT 14
#define ANEG_STATE_NEXT_PAGE_WAIT 15
u32 flags;
#define MR_AN_ENABLE 0x00000001
#define MR_RESTART_AN 0x00000002
#define MR_AN_COMPLETE 0x00000004
#define MR_PAGE_RX 0x00000008
#define MR_NP_LOADED 0x00000010
#define MR_TOGGLE_TX 0x00000020
#define MR_LP_ADV_FULL_DUPLEX 0x00000040
#define MR_LP_ADV_HALF_DUPLEX 0x00000080
#define MR_LP_ADV_SYM_PAUSE 0x00000100
#define MR_LP_ADV_ASYM_PAUSE 0x00000200
#define MR_LP_ADV_REMOTE_FAULT1 0x00000400
#define MR_LP_ADV_REMOTE_FAULT2 0x00000800
#define MR_LP_ADV_NEXT_PAGE 0x00001000
#define MR_TOGGLE_RX 0x00002000
#define MR_NP_RX 0x00004000
#define MR_LINK_OK 0x80000000
unsigned long link_time, cur_time;
u32 ability_match_cfg;
int ability_match_count;
char ability_match, idle_match, ack_match;
u32 txconfig, rxconfig;
#define ANEG_CFG_NP 0x00000080
#define ANEG_CFG_ACK 0x00000040
#define ANEG_CFG_RF2 0x00000020
#define ANEG_CFG_RF1 0x00000010
#define ANEG_CFG_PS2 0x00000001
#define ANEG_CFG_PS1 0x00008000
#define ANEG_CFG_HD 0x00004000
#define ANEG_CFG_FD 0x00002000
#define ANEG_CFG_INVAL 0x00001f06
};
#define ANEG_OK 0
#define ANEG_DONE 1
#define ANEG_TIMER_ENAB 2
#define ANEG_FAILED -1
#define ANEG_STATE_SETTLE_TIME 10000
static int tg3_fiber_aneg_smachine(struct tg3 *tp,
struct tg3_fiber_aneginfo *ap)
{
u16 flowctrl;
unsigned long delta;
u32 rx_cfg_reg;
int ret;
if (ap->state == ANEG_STATE_UNKNOWN) {
ap->rxconfig = 0;
ap->link_time = 0;
ap->cur_time = 0;
ap->ability_match_cfg = 0;
ap->ability_match_count = 0;
ap->ability_match = 0;
ap->idle_match = 0;
ap->ack_match = 0;
}
ap->cur_time++;
if (tr32(MAC_STATUS) & MAC_STATUS_RCVD_CFG) {
rx_cfg_reg = tr32(MAC_RX_AUTO_NEG);
if (rx_cfg_reg != ap->ability_match_cfg) {
ap->ability_match_cfg = rx_cfg_reg;
ap->ability_match = 0;
ap->ability_match_count = 0;
} else {
if (++ap->ability_match_count > 1) {
ap->ability_match = 1;
ap->ability_match_cfg = rx_cfg_reg;
}
}
if (rx_cfg_reg & ANEG_CFG_ACK)
ap->ack_match = 1;
else
ap->ack_match = 0;
ap->idle_match = 0;
} else {
ap->idle_match = 1;
ap->ability_match_cfg = 0;
ap->ability_match_count = 0;
ap->ability_match = 0;
ap->ack_match = 0;
rx_cfg_reg = 0;
}
ap->rxconfig = rx_cfg_reg;
ret = ANEG_OK;
switch(ap->state) {
case ANEG_STATE_UNKNOWN:
if (ap->flags & (MR_AN_ENABLE | MR_RESTART_AN))
ap->state = ANEG_STATE_AN_ENABLE;
/* fallthru */
case ANEG_STATE_AN_ENABLE:
ap->flags &= ~(MR_AN_COMPLETE | MR_PAGE_RX);
if (ap->flags & MR_AN_ENABLE) {
ap->link_time = 0;
ap->cur_time = 0;
ap->ability_match_cfg = 0;
ap->ability_match_count = 0;
ap->ability_match = 0;
ap->idle_match = 0;
ap->ack_match = 0;
ap->state = ANEG_STATE_RESTART_INIT;
} else {
ap->state = ANEG_STATE_DISABLE_LINK_OK;
}
break;
case ANEG_STATE_RESTART_INIT:
ap->link_time = ap->cur_time;
ap->flags &= ~(MR_NP_LOADED);
ap->txconfig = 0;
tw32(MAC_TX_AUTO_NEG, 0);
tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
ret = ANEG_TIMER_ENAB;
ap->state = ANEG_STATE_RESTART;
/* fallthru */
case ANEG_STATE_RESTART:
delta = ap->cur_time - ap->link_time;
if (delta > ANEG_STATE_SETTLE_TIME) {
ap->state = ANEG_STATE_ABILITY_DETECT_INIT;
} else {
ret = ANEG_TIMER_ENAB;
}
break;
case ANEG_STATE_DISABLE_LINK_OK:
ret = ANEG_DONE;
break;
case ANEG_STATE_ABILITY_DETECT_INIT:
ap->flags &= ~(MR_TOGGLE_TX);
ap->txconfig = ANEG_CFG_FD;
flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
if (flowctrl & ADVERTISE_1000XPAUSE)
ap->txconfig |= ANEG_CFG_PS1;
if (flowctrl & ADVERTISE_1000XPSE_ASYM)
ap->txconfig |= ANEG_CFG_PS2;
tw32(MAC_TX_AUTO_NEG, ap->txconfig);
tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
ap->state = ANEG_STATE_ABILITY_DETECT;
break;
case ANEG_STATE_ABILITY_DETECT:
if (ap->ability_match != 0 && ap->rxconfig != 0) {
ap->state = ANEG_STATE_ACK_DETECT_INIT;
}
break;
case ANEG_STATE_ACK_DETECT_INIT:
ap->txconfig |= ANEG_CFG_ACK;
tw32(MAC_TX_AUTO_NEG, ap->txconfig);
tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
ap->state = ANEG_STATE_ACK_DETECT;
/* fallthru */
case ANEG_STATE_ACK_DETECT:
if (ap->ack_match != 0) {
if ((ap->rxconfig & ~ANEG_CFG_ACK) ==
(ap->ability_match_cfg & ~ANEG_CFG_ACK)) {
ap->state = ANEG_STATE_COMPLETE_ACK_INIT;
} else {
ap->state = ANEG_STATE_AN_ENABLE;
}
} else if (ap->ability_match != 0 &&
ap->rxconfig == 0) {
ap->state = ANEG_STATE_AN_ENABLE;
}
break;
case ANEG_STATE_COMPLETE_ACK_INIT:
if (ap->rxconfig & ANEG_CFG_INVAL) {
ret = ANEG_FAILED;
break;
}
ap->flags &= ~(MR_LP_ADV_FULL_DUPLEX |
MR_LP_ADV_HALF_DUPLEX |
MR_LP_ADV_SYM_PAUSE |
MR_LP_ADV_ASYM_PAUSE |
MR_LP_ADV_REMOTE_FAULT1 |
MR_LP_ADV_REMOTE_FAULT2 |
MR_LP_ADV_NEXT_PAGE |
MR_TOGGLE_RX |
MR_NP_RX);
if (ap->rxconfig & ANEG_CFG_FD)
ap->flags |= MR_LP_ADV_FULL_DUPLEX;
if (ap->rxconfig & ANEG_CFG_HD)
ap->flags |= MR_LP_ADV_HALF_DUPLEX;
if (ap->rxconfig & ANEG_CFG_PS1)
ap->flags |= MR_LP_ADV_SYM_PAUSE;
if (ap->rxconfig & ANEG_CFG_PS2)
ap->flags |= MR_LP_ADV_ASYM_PAUSE;
if (ap->rxconfig & ANEG_CFG_RF1)
ap->flags |= MR_LP_ADV_REMOTE_FAULT1;
if (ap->rxconfig & ANEG_CFG_RF2)
ap->flags |= MR_LP_ADV_REMOTE_FAULT2;
if (ap->rxconfig & ANEG_CFG_NP)
ap->flags |= MR_LP_ADV_NEXT_PAGE;
ap->link_time = ap->cur_time;
ap->flags ^= (MR_TOGGLE_TX);
if (ap->rxconfig & 0x0008)
ap->flags |= MR_TOGGLE_RX;
if (ap->rxconfig & ANEG_CFG_NP)
ap->flags |= MR_NP_RX;
ap->flags |= MR_PAGE_RX;
ap->state = ANEG_STATE_COMPLETE_ACK;
ret = ANEG_TIMER_ENAB;
break;
case ANEG_STATE_COMPLETE_ACK:
if (ap->ability_match != 0 &&
ap->rxconfig == 0) {
ap->state = ANEG_STATE_AN_ENABLE;
break;
}
delta = ap->cur_time - ap->link_time;
if (delta > ANEG_STATE_SETTLE_TIME) {
if (!(ap->flags & (MR_LP_ADV_NEXT_PAGE))) {
ap->state = ANEG_STATE_IDLE_DETECT_INIT;
} else {
if ((ap->txconfig & ANEG_CFG_NP) == 0 &&
!(ap->flags & MR_NP_RX)) {
ap->state = ANEG_STATE_IDLE_DETECT_INIT;
} else {
ret = ANEG_FAILED;
}
}
}
break;
case ANEG_STATE_IDLE_DETECT_INIT:
ap->link_time = ap->cur_time;
tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
ap->state = ANEG_STATE_IDLE_DETECT;
ret = ANEG_TIMER_ENAB;
break;
case ANEG_STATE_IDLE_DETECT:
if (ap->ability_match != 0 &&
ap->rxconfig == 0) {
ap->state = ANEG_STATE_AN_ENABLE;
break;
}
delta = ap->cur_time - ap->link_time;
if (delta > ANEG_STATE_SETTLE_TIME) {
/* XXX another gem from the Broadcom driver :( */
ap->state = ANEG_STATE_LINK_OK;
}
break;
case ANEG_STATE_LINK_OK:
ap->flags |= (MR_AN_COMPLETE | MR_LINK_OK);
ret = ANEG_DONE;
break;
case ANEG_STATE_NEXT_PAGE_WAIT_INIT:
/* ??? unimplemented */
break;
case ANEG_STATE_NEXT_PAGE_WAIT:
/* ??? unimplemented */
break;
default:
ret = ANEG_FAILED;
break;
}
return ret;
}
static int fiber_autoneg(struct tg3 *tp, u32 *txflags, u32 *rxflags)
{
int res = 0;
struct tg3_fiber_aneginfo aninfo;
int status = ANEG_FAILED;
unsigned int tick;
u32 tmp;
tw32_f(MAC_TX_AUTO_NEG, 0);
tmp = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
tw32_f(MAC_MODE, tmp | MAC_MODE_PORT_MODE_GMII);
udelay(40);
tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_SEND_CONFIGS);
udelay(40);
memset(&aninfo, 0, sizeof(aninfo));
aninfo.flags |= MR_AN_ENABLE;
aninfo.state = ANEG_STATE_UNKNOWN;
aninfo.cur_time = 0;
tick = 0;
while (++tick < 195000) {
status = tg3_fiber_aneg_smachine(tp, &aninfo);
if (status == ANEG_DONE || status == ANEG_FAILED)
break;
udelay(1);
}
tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
*txflags = aninfo.txconfig;
*rxflags = aninfo.flags;
if (status == ANEG_DONE &&
(aninfo.flags & (MR_AN_COMPLETE | MR_LINK_OK |
MR_LP_ADV_FULL_DUPLEX)))
res = 1;
return res;
}
static void tg3_init_bcm8002(struct tg3 *tp)
{
u32 mac_status = tr32(MAC_STATUS);
int i;
/* Reset when initting first time or we have a link. */
if ((tp->tg3_flags & TG3_FLAG_INIT_COMPLETE) &&
!(mac_status & MAC_STATUS_PCS_SYNCED))
return;
/* Set PLL lock range. */
tg3_writephy(tp, 0x16, 0x8007);
/* SW reset */
tg3_writephy(tp, MII_BMCR, BMCR_RESET);
/* Wait for reset to complete. */
/* XXX schedule_timeout() ... */
for (i = 0; i < 500; i++)
udelay(10);
/* Config mode; select PMA/Ch 1 regs. */
tg3_writephy(tp, 0x10, 0x8411);
/* Enable auto-lock and comdet, select txclk for tx. */
tg3_writephy(tp, 0x11, 0x0a10);
tg3_writephy(tp, 0x18, 0x00a0);
tg3_writephy(tp, 0x16, 0x41ff);
/* Assert and deassert POR. */
tg3_writephy(tp, 0x13, 0x0400);
udelay(40);
tg3_writephy(tp, 0x13, 0x0000);
tg3_writephy(tp, 0x11, 0x0a50);
udelay(40);
tg3_writephy(tp, 0x11, 0x0a10);
/* Wait for signal to stabilize */
/* XXX schedule_timeout() ... */
for (i = 0; i < 15000; i++)
udelay(10);
/* Deselect the channel register so we can read the PHYID
* later.
*/
tg3_writephy(tp, 0x10, 0x8011);
}
static int tg3_setup_fiber_hw_autoneg(struct tg3 *tp, u32 mac_status)
{
u16 flowctrl;
u32 sg_dig_ctrl, sg_dig_status;
u32 serdes_cfg, expected_sg_dig_ctrl;
int workaround, port_a;
int current_link_up;
serdes_cfg = 0;
expected_sg_dig_ctrl = 0;
workaround = 0;
port_a = 1;
current_link_up = 0;
if (tp->pci_chip_rev_id != CHIPREV_ID_5704_A0 &&
tp->pci_chip_rev_id != CHIPREV_ID_5704_A1) {
workaround = 1;
if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
port_a = 0;
/* preserve bits 0-11,13,14 for signal pre-emphasis */
/* preserve bits 20-23 for voltage regulator */
serdes_cfg = tr32(MAC_SERDES_CFG) & 0x00f06fff;
}
sg_dig_ctrl = tr32(SG_DIG_CTRL);
if (tp->link_config.autoneg != AUTONEG_ENABLE) {
if (sg_dig_ctrl & SG_DIG_USING_HW_AUTONEG) {
if (workaround) {
u32 val = serdes_cfg;
if (port_a)
val |= 0xc010000;
else
val |= 0x4010000;
tw32_f(MAC_SERDES_CFG, val);
}
tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
}
if (mac_status & MAC_STATUS_PCS_SYNCED) {
tg3_setup_flow_control(tp, 0, 0);
current_link_up = 1;
}
goto out;
}
/* Want auto-negotiation. */
expected_sg_dig_ctrl = SG_DIG_USING_HW_AUTONEG | SG_DIG_COMMON_SETUP;
flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
if (flowctrl & ADVERTISE_1000XPAUSE)
expected_sg_dig_ctrl |= SG_DIG_PAUSE_CAP;
if (flowctrl & ADVERTISE_1000XPSE_ASYM)
expected_sg_dig_ctrl |= SG_DIG_ASYM_PAUSE;
if (sg_dig_ctrl != expected_sg_dig_ctrl) {
if ((tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT) &&
tp->serdes_counter &&
((mac_status & (MAC_STATUS_PCS_SYNCED |
MAC_STATUS_RCVD_CFG)) ==
MAC_STATUS_PCS_SYNCED)) {
tp->serdes_counter--;
current_link_up = 1;
goto out;
}
restart_autoneg:
if (workaround)
tw32_f(MAC_SERDES_CFG, serdes_cfg | 0xc011000);
tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl | SG_DIG_SOFT_RESET);
udelay(5);
tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl);
tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
} else if (mac_status & (MAC_STATUS_PCS_SYNCED |
MAC_STATUS_SIGNAL_DET)) {
sg_dig_status = tr32(SG_DIG_STATUS);
mac_status = tr32(MAC_STATUS);
if ((sg_dig_status & SG_DIG_AUTONEG_COMPLETE) &&
(mac_status & MAC_STATUS_PCS_SYNCED)) {
u32 local_adv = 0, remote_adv = 0;
if (sg_dig_ctrl & SG_DIG_PAUSE_CAP)
local_adv |= ADVERTISE_1000XPAUSE;
if (sg_dig_ctrl & SG_DIG_ASYM_PAUSE)
local_adv |= ADVERTISE_1000XPSE_ASYM;
if (sg_dig_status & SG_DIG_PARTNER_PAUSE_CAPABLE)
remote_adv |= LPA_1000XPAUSE;
if (sg_dig_status & SG_DIG_PARTNER_ASYM_PAUSE)
remote_adv |= LPA_1000XPAUSE_ASYM;
tg3_setup_flow_control(tp, local_adv, remote_adv);
current_link_up = 1;
tp->serdes_counter = 0;
tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
} else if (!(sg_dig_status & SG_DIG_AUTONEG_COMPLETE)) {
if (tp->serdes_counter)
tp->serdes_counter--;
else {
if (workaround) {
u32 val = serdes_cfg;
if (port_a)
val |= 0xc010000;
else
val |= 0x4010000;
tw32_f(MAC_SERDES_CFG, val);
}
tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
udelay(40);
/* Link parallel detection - link is up */
/* only if we have PCS_SYNC and not */
/* receiving config code words */
mac_status = tr32(MAC_STATUS);
if ((mac_status & MAC_STATUS_PCS_SYNCED) &&
!(mac_status & MAC_STATUS_RCVD_CFG)) {
tg3_setup_flow_control(tp, 0, 0);
current_link_up = 1;
tp->tg3_flags2 |=
TG3_FLG2_PARALLEL_DETECT;
tp->serdes_counter =
SERDES_PARALLEL_DET_TIMEOUT;
} else
goto restart_autoneg;
}
}
} else {
tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
}
out:
return current_link_up;
}
static int tg3_setup_fiber_by_hand(struct tg3 *tp, u32 mac_status)
{
int current_link_up = 0;
if (!(mac_status & MAC_STATUS_PCS_SYNCED))
goto out;
if (tp->link_config.autoneg == AUTONEG_ENABLE) {
u32 txflags, rxflags;
int i;
if (fiber_autoneg(tp, &txflags, &rxflags)) {
u32 local_adv = 0, remote_adv = 0;
if (txflags & ANEG_CFG_PS1)
local_adv |= ADVERTISE_1000XPAUSE;
if (txflags & ANEG_CFG_PS2)
local_adv |= ADVERTISE_1000XPSE_ASYM;
if (rxflags & MR_LP_ADV_SYM_PAUSE)
remote_adv |= LPA_1000XPAUSE;
if (rxflags & MR_LP_ADV_ASYM_PAUSE)
remote_adv |= LPA_1000XPAUSE_ASYM;
tg3_setup_flow_control(tp, local_adv, remote_adv);
current_link_up = 1;
}
for (i = 0; i < 30; i++) {
udelay(20);
tw32_f(MAC_STATUS,
(MAC_STATUS_SYNC_CHANGED |
MAC_STATUS_CFG_CHANGED));
udelay(40);
if ((tr32(MAC_STATUS) &
(MAC_STATUS_SYNC_CHANGED |
MAC_STATUS_CFG_CHANGED)) == 0)
break;
}
mac_status = tr32(MAC_STATUS);
if (current_link_up == 0 &&
(mac_status & MAC_STATUS_PCS_SYNCED) &&
!(mac_status & MAC_STATUS_RCVD_CFG))
current_link_up = 1;
} else {
tg3_setup_flow_control(tp, 0, 0);
/* Forcing 1000FD link up. */
current_link_up = 1;
tw32_f(MAC_MODE, (tp->mac_mode | MAC_MODE_SEND_CONFIGS));
udelay(40);
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
}
out:
return current_link_up;
}
static int tg3_setup_fiber_phy(struct tg3 *tp, int force_reset)
{
u32 orig_pause_cfg;
u16 orig_active_speed;
u8 orig_active_duplex;
u32 mac_status;
int current_link_up;
int i;
orig_pause_cfg = tp->link_config.active_flowctrl;
orig_active_speed = tp->link_config.active_speed;
orig_active_duplex = tp->link_config.active_duplex;
if (!(tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG) &&
netif_carrier_ok(tp->dev) &&
(tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)) {
mac_status = tr32(MAC_STATUS);
mac_status &= (MAC_STATUS_PCS_SYNCED |
MAC_STATUS_SIGNAL_DET |
MAC_STATUS_CFG_CHANGED |
MAC_STATUS_RCVD_CFG);
if (mac_status == (MAC_STATUS_PCS_SYNCED |
MAC_STATUS_SIGNAL_DET)) {
tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
MAC_STATUS_CFG_CHANGED));
return 0;
}
}
tw32_f(MAC_TX_AUTO_NEG, 0);
tp->mac_mode &= ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
if (tp->phy_id == PHY_ID_BCM8002)
tg3_init_bcm8002(tp);
/* Enable link change event even when serdes polling. */
tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
udelay(40);
current_link_up = 0;
mac_status = tr32(MAC_STATUS);
if (tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG)
current_link_up = tg3_setup_fiber_hw_autoneg(tp, mac_status);
else
current_link_up = tg3_setup_fiber_by_hand(tp, mac_status);
tp->hw_status->status =
(SD_STATUS_UPDATED |
(tp->hw_status->status & ~SD_STATUS_LINK_CHG));
for (i = 0; i < 100; i++) {
tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
MAC_STATUS_CFG_CHANGED));
udelay(5);
if ((tr32(MAC_STATUS) & (MAC_STATUS_SYNC_CHANGED |
MAC_STATUS_CFG_CHANGED |
MAC_STATUS_LNKSTATE_CHANGED)) == 0)
break;
}
mac_status = tr32(MAC_STATUS);
if ((mac_status & MAC_STATUS_PCS_SYNCED) == 0) {
current_link_up = 0;
if (tp->link_config.autoneg == AUTONEG_ENABLE &&
tp->serdes_counter == 0) {
tw32_f(MAC_MODE, (tp->mac_mode |
MAC_MODE_SEND_CONFIGS));
udelay(1);
tw32_f(MAC_MODE, tp->mac_mode);
}
}
if (current_link_up == 1) {
tp->link_config.active_speed = SPEED_1000;
tp->link_config.active_duplex = DUPLEX_FULL;
tw32(MAC_LED_CTRL, (tp->led_ctrl |
LED_CTRL_LNKLED_OVERRIDE |
LED_CTRL_1000MBPS_ON));
} else {
tp->link_config.active_speed = SPEED_INVALID;
tp->link_config.active_duplex = DUPLEX_INVALID;
tw32(MAC_LED_CTRL, (tp->led_ctrl |
LED_CTRL_LNKLED_OVERRIDE |
LED_CTRL_TRAFFIC_OVERRIDE));
}
if (current_link_up != netif_carrier_ok(tp->dev)) {
if (current_link_up)
netif_carrier_on(tp->dev);
else
netif_carrier_off(tp->dev);
tg3_link_report(tp);
} else {
u32 now_pause_cfg = tp->link_config.active_flowctrl;
if (orig_pause_cfg != now_pause_cfg ||
orig_active_speed != tp->link_config.active_speed ||
orig_active_duplex != tp->link_config.active_duplex)
tg3_link_report(tp);
}
return 0;
}
static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset)
{
int current_link_up, err = 0;
u32 bmsr, bmcr;
u16 current_speed;
u8 current_duplex;
u32 local_adv, remote_adv;
tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
tw32(MAC_EVENT, 0);
tw32_f(MAC_STATUS,
(MAC_STATUS_SYNC_CHANGED |
MAC_STATUS_CFG_CHANGED |
MAC_STATUS_MI_COMPLETION |
MAC_STATUS_LNKSTATE_CHANGED));
udelay(40);
if (force_reset)
tg3_phy_reset(tp);
current_link_up = 0;
current_speed = SPEED_INVALID;
current_duplex = DUPLEX_INVALID;
err |= tg3_readphy(tp, MII_BMSR, &bmsr);
err |= tg3_readphy(tp, MII_BMSR, &bmsr);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
bmsr |= BMSR_LSTATUS;
else
bmsr &= ~BMSR_LSTATUS;
}
err |= tg3_readphy(tp, MII_BMCR, &bmcr);
if ((tp->link_config.autoneg == AUTONEG_ENABLE) && !force_reset &&
(tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT)) {
/* do nothing, just check for link up at the end */
} else if (tp->link_config.autoneg == AUTONEG_ENABLE) {
u32 adv, new_adv;
err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
new_adv = adv & ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF |
ADVERTISE_1000XPAUSE |
ADVERTISE_1000XPSE_ASYM |
ADVERTISE_SLCT);
new_adv |= tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
new_adv |= ADVERTISE_1000XHALF;
if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
new_adv |= ADVERTISE_1000XFULL;
if ((new_adv != adv) || !(bmcr & BMCR_ANENABLE)) {
tg3_writephy(tp, MII_ADVERTISE, new_adv);
bmcr |= BMCR_ANENABLE | BMCR_ANRESTART;
tg3_writephy(tp, MII_BMCR, bmcr);
tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
tp->serdes_counter = SERDES_AN_TIMEOUT_5714S;
tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
return err;
}
} else {
u32 new_bmcr;
bmcr &= ~BMCR_SPEED1000;
new_bmcr = bmcr & ~(BMCR_ANENABLE | BMCR_FULLDPLX);
if (tp->link_config.duplex == DUPLEX_FULL)
new_bmcr |= BMCR_FULLDPLX;
if (new_bmcr != bmcr) {
/* BMCR_SPEED1000 is a reserved bit that needs
* to be set on write.
*/
new_bmcr |= BMCR_SPEED1000;
/* Force a linkdown */
if (netif_carrier_ok(tp->dev)) {
u32 adv;
err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
adv &= ~(ADVERTISE_1000XFULL |
ADVERTISE_1000XHALF |
ADVERTISE_SLCT);
tg3_writephy(tp, MII_ADVERTISE, adv);
tg3_writephy(tp, MII_BMCR, bmcr |
BMCR_ANRESTART |
BMCR_ANENABLE);
udelay(10);
netif_carrier_off(tp->dev);
}
tg3_writephy(tp, MII_BMCR, new_bmcr);
bmcr = new_bmcr;
err |= tg3_readphy(tp, MII_BMSR, &bmsr);
err |= tg3_readphy(tp, MII_BMSR, &bmsr);
if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
ASIC_REV_5714) {
if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
bmsr |= BMSR_LSTATUS;
else
bmsr &= ~BMSR_LSTATUS;
}
tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
}
}
if (bmsr & BMSR_LSTATUS) {
current_speed = SPEED_1000;
current_link_up = 1;
if (bmcr & BMCR_FULLDPLX)
current_duplex = DUPLEX_FULL;
else
current_duplex = DUPLEX_HALF;
local_adv = 0;
remote_adv = 0;
if (bmcr & BMCR_ANENABLE) {
u32 common;
err |= tg3_readphy(tp, MII_ADVERTISE, &local_adv);
err |= tg3_readphy(tp, MII_LPA, &remote_adv);
common = local_adv & remote_adv;
if (common & (ADVERTISE_1000XHALF |
ADVERTISE_1000XFULL)) {
if (common & ADVERTISE_1000XFULL)
current_duplex = DUPLEX_FULL;
else
current_duplex = DUPLEX_HALF;
}
else
current_link_up = 0;
}
}
if (current_link_up == 1 && current_duplex == DUPLEX_FULL)
tg3_setup_flow_control(tp, local_adv, remote_adv);
tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
if (tp->link_config.active_duplex == DUPLEX_HALF)
tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
tp->link_config.active_speed = current_speed;
tp->link_config.active_duplex = current_duplex;
if (current_link_up != netif_carrier_ok(tp->dev)) {
if (current_link_up)
netif_carrier_on(tp->dev);
else {
netif_carrier_off(tp->dev);
tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
}
tg3_link_report(tp);
}
return err;
}
static void tg3_serdes_parallel_detect(struct tg3 *tp)
{
if (tp->serdes_counter) {
/* Give autoneg time to complete. */
tp->serdes_counter--;
return;
}
if (!netif_carrier_ok(tp->dev) &&
(tp->link_config.autoneg == AUTONEG_ENABLE)) {
u32 bmcr;
tg3_readphy(tp, MII_BMCR, &bmcr);
if (bmcr & BMCR_ANENABLE) {
u32 phy1, phy2;
/* Select shadow register 0x1f */
tg3_writephy(tp, 0x1c, 0x7c00);
tg3_readphy(tp, 0x1c, &phy1);
/* Select expansion interrupt status register */
tg3_writephy(tp, 0x17, 0x0f01);
tg3_readphy(tp, 0x15, &phy2);
tg3_readphy(tp, 0x15, &phy2);
if ((phy1 & 0x10) && !(phy2 & 0x20)) {
/* We have signal detect and not receiving
* config code words, link is up by parallel
* detection.
*/
bmcr &= ~BMCR_ANENABLE;
bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
tg3_writephy(tp, MII_BMCR, bmcr);
tp->tg3_flags2 |= TG3_FLG2_PARALLEL_DETECT;
}
}
}
else if (netif_carrier_ok(tp->dev) &&
(tp->link_config.autoneg == AUTONEG_ENABLE) &&
(tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT)) {
u32 phy2;
/* Select expansion interrupt status register */
tg3_writephy(tp, 0x17, 0x0f01);
tg3_readphy(tp, 0x15, &phy2);
if (phy2 & 0x20) {
u32 bmcr;
/* Config code words received, turn on autoneg. */
tg3_readphy(tp, MII_BMCR, &bmcr);
tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANENABLE);
tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
}
}
}
static int tg3_setup_phy(struct tg3 *tp, int force_reset)
{
int err;
if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
err = tg3_setup_fiber_phy(tp, force_reset);
} else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
err = tg3_setup_fiber_mii_phy(tp, force_reset);
} else {
err = tg3_setup_copper_phy(tp, force_reset);
}
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
u32 val, scale;
val = tr32(TG3_CPMU_CLCK_STAT) & CPMU_CLCK_STAT_MAC_CLCK_MASK;
if (val == CPMU_CLCK_STAT_MAC_CLCK_62_5)
scale = 65;
else if (val == CPMU_CLCK_STAT_MAC_CLCK_6_25)
scale = 6;
else
scale = 12;
val = tr32(GRC_MISC_CFG) & ~GRC_MISC_CFG_PRESCALAR_MASK;
val |= (scale << GRC_MISC_CFG_PRESCALAR_SHIFT);
tw32(GRC_MISC_CFG, val);
}
if (tp->link_config.active_speed == SPEED_1000 &&
tp->link_config.active_duplex == DUPLEX_HALF)
tw32(MAC_TX_LENGTHS,
((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
(6 << TX_LENGTHS_IPG_SHIFT) |
(0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
else
tw32(MAC_TX_LENGTHS,
((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
(6 << TX_LENGTHS_IPG_SHIFT) |
(32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
if (netif_carrier_ok(tp->dev)) {
tw32(HOSTCC_STAT_COAL_TICKS,
tp->coal.stats_block_coalesce_usecs);
} else {
tw32(HOSTCC_STAT_COAL_TICKS, 0);
}
}
if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND) {
u32 val = tr32(PCIE_PWR_MGMT_THRESH);
if (!netif_carrier_ok(tp->dev))
val = (val & ~PCIE_PWR_MGMT_L1_THRESH_MSK) |
tp->pwrmgmt_thresh;
else
val |= PCIE_PWR_MGMT_L1_THRESH_MSK;
tw32(PCIE_PWR_MGMT_THRESH, val);
}
return err;
}
/* This is called whenever we suspect that the system chipset is re-
* ordering the sequence of MMIO to the tx send mailbox. The symptom
* is bogus tx completions. We try to recover by setting the
* TG3_FLAG_MBOX_WRITE_REORDER flag and resetting the chip later
* in the workqueue.
*/
static void tg3_tx_recover(struct tg3 *tp)
{
BUG_ON((tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) ||
tp->write32_tx_mbox == tg3_write_indirect_mbox);
printk(KERN_WARNING PFX "%s: The system may be re-ordering memory-"
"mapped I/O cycles to the network device, attempting to "
"recover. Please report the problem to the driver maintainer "
"and include system chipset information.\n", tp->dev->name);
spin_lock(&tp->lock);
tp->tg3_flags |= TG3_FLAG_TX_RECOVERY_PENDING;
spin_unlock(&tp->lock);
}
static inline u32 tg3_tx_avail(struct tg3 *tp)
{
smp_mb();
return (tp->tx_pending -
((tp->tx_prod - tp->tx_cons) & (TG3_TX_RING_SIZE - 1)));
}
/* Tigon3 never reports partial packet sends. So we do not
* need special logic to handle SKBs that have not had all
* of their frags sent yet, like SunGEM does.
*/
static void tg3_tx(struct tg3 *tp)
{
u32 hw_idx = tp->hw_status->idx[0].tx_consumer;
u32 sw_idx = tp->tx_cons;
while (sw_idx != hw_idx) {
struct tx_ring_info *ri = &tp->tx_buffers[sw_idx];
struct sk_buff *skb = ri->skb;
int i, tx_bug = 0;
if (unlikely(skb == NULL)) {
tg3_tx_recover(tp);
return;
}
skb_dma_unmap(&tp->pdev->dev, skb, DMA_TO_DEVICE);
ri->skb = NULL;
sw_idx = NEXT_TX(sw_idx);
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
ri = &tp->tx_buffers[sw_idx];
if (unlikely(ri->skb != NULL || sw_idx == hw_idx))
tx_bug = 1;
sw_idx = NEXT_TX(sw_idx);
}
dev_kfree_skb(skb);
if (unlikely(tx_bug)) {
tg3_tx_recover(tp);
return;
}
}
tp->tx_cons = sw_idx;
/* Need to make the tx_cons update visible to tg3_start_xmit()
* before checking for netif_queue_stopped(). Without the
* memory barrier, there is a small possibility that tg3_start_xmit()
* will miss it and cause the queue to be stopped forever.
*/
smp_mb();
if (unlikely(netif_queue_stopped(tp->dev) &&
(tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp)))) {
netif_tx_lock(tp->dev);
if (netif_queue_stopped(tp->dev) &&
(tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp)))
netif_wake_queue(tp->dev);
netif_tx_unlock(tp->dev);
}
}
/* Returns size of skb allocated or < 0 on error.
*
* We only need to fill in the address because the other members
* of the RX descriptor are invariant, see tg3_init_rings.
*
* Note the purposeful assymetry of cpu vs. chip accesses. For
* posting buffers we only dirty the first cache line of the RX
* descriptor (containing the address). Whereas for the RX status
* buffers the cpu only reads the last cacheline of the RX descriptor
* (to fetch the error flags, vlan tag, checksum, and opaque cookie).
*/
static int tg3_alloc_rx_skb(struct tg3 *tp, u32 opaque_key,
int src_idx, u32 dest_idx_unmasked)
{
struct tg3_rx_buffer_desc *desc;
struct ring_info *map, *src_map;
struct sk_buff *skb;
dma_addr_t mapping;
int skb_size, dest_idx;
src_map = NULL;
switch (opaque_key) {
case RXD_OPAQUE_RING_STD:
dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
desc = &tp->rx_std[dest_idx];
map = &tp->rx_std_buffers[dest_idx];
if (src_idx >= 0)
src_map = &tp->rx_std_buffers[src_idx];
skb_size = tp->rx_pkt_buf_sz;
break;
case RXD_OPAQUE_RING_JUMBO:
dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
desc = &tp->rx_jumbo[dest_idx];
map = &tp->rx_jumbo_buffers[dest_idx];
if (src_idx >= 0)
src_map = &tp->rx_jumbo_buffers[src_idx];
skb_size = RX_JUMBO_PKT_BUF_SZ;
break;
default:
return -EINVAL;
}
/* Do not overwrite any of the map or rp information
* until we are sure we can commit to a new buffer.
*
* Callers depend upon this behavior and assume that
* we leave everything unchanged if we fail.
*/
skb = netdev_alloc_skb(tp->dev, skb_size);
if (skb == NULL)
return -ENOMEM;
skb_reserve(skb, tp->rx_offset);
mapping = pci_map_single(tp->pdev, skb->data,
skb_size - tp->rx_offset,
PCI_DMA_FROMDEVICE);
map->skb = skb;
pci_unmap_addr_set(map, mapping, mapping);
if (src_map != NULL)
src_map->skb = NULL;
desc->addr_hi = ((u64)mapping >> 32);
desc->addr_lo = ((u64)mapping & 0xffffffff);
return skb_size;
}
/* We only need to move over in the address because the other
* members of the RX descriptor are invariant. See notes above
* tg3_alloc_rx_skb for full details.
*/
static void tg3_recycle_rx(struct tg3 *tp, u32 opaque_key,
int src_idx, u32 dest_idx_unmasked)
{
struct tg3_rx_buffer_desc *src_desc, *dest_desc;
struct ring_info *src_map, *dest_map;
int dest_idx;
switch (opaque_key) {
case RXD_OPAQUE_RING_STD:
dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
dest_desc = &tp->rx_std[dest_idx];
dest_map = &tp->rx_std_buffers[dest_idx];
src_desc = &tp->rx_std[src_idx];
src_map = &tp->rx_std_buffers[src_idx];
break;
case RXD_OPAQUE_RING_JUMBO:
dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
dest_desc = &tp->rx_jumbo[dest_idx];
dest_map = &tp->rx_jumbo_buffers[dest_idx];
src_desc = &tp->rx_jumbo[src_idx];
src_map = &tp->rx_jumbo_buffers[src_idx];
break;
default:
return;
}
dest_map->skb = src_map->skb;
pci_unmap_addr_set(dest_map, mapping,
pci_unmap_addr(src_map, mapping));
dest_desc->addr_hi = src_desc->addr_hi;
dest_desc->addr_lo = src_desc->addr_lo;
src_map->skb = NULL;
}
#if TG3_VLAN_TAG_USED
static int tg3_vlan_rx(struct tg3 *tp, struct sk_buff *skb, u16 vlan_tag)
{
return vlan_gro_receive(&tp->napi, tp->vlgrp, vlan_tag, skb);
}
#endif
/* The RX ring scheme is composed of multiple rings which post fresh
* buffers to the chip, and one special ring the chip uses to report
* status back to the host.
*
* The special ring reports the status of received packets to the
* host. The chip does not write into the original descriptor the
* RX buffer was obtained from. The chip simply takes the original
* descriptor as provided by the host, updates the status and length
* field, then writes this into the next status ring entry.
*
* Each ring the host uses to post buffers to the chip is described
* by a TG3_BDINFO entry in the chips SRAM area. When a packet arrives,
* it is first placed into the on-chip ram. When the packet's length
* is known, it walks down the TG3_BDINFO entries to select the ring.
* Each TG3_BDINFO specifies a MAXLEN field and the first TG3_BDINFO
* which is within the range of the new packet's length is chosen.
*
* The "separate ring for rx status" scheme may sound queer, but it makes
* sense from a cache coherency perspective. If only the host writes
* to the buffer post rings, and only the chip writes to the rx status
* rings, then cache lines never move beyond shared-modified state.
* If both the host and chip were to write into the same ring, cache line
* eviction could occur since both entities want it in an exclusive state.
*/
static int tg3_rx(struct tg3 *tp, int budget)
{
u32 work_mask, rx_std_posted = 0;
u32 sw_idx = tp->rx_rcb_ptr;
u16 hw_idx;
int received;
hw_idx = tp->hw_status->idx[0].rx_producer;
/*
* We need to order the read of hw_idx and the read of
* the opaque cookie.
*/
rmb();
work_mask = 0;
received = 0;
while (sw_idx != hw_idx && budget > 0) {
struct tg3_rx_buffer_desc *desc = &tp->rx_rcb[sw_idx];
unsigned int len;
struct sk_buff *skb;
dma_addr_t dma_addr;
u32 opaque_key, desc_idx, *post_ptr;
desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
if (opaque_key == RXD_OPAQUE_RING_STD) {
dma_addr = pci_unmap_addr(&tp->rx_std_buffers[desc_idx],
mapping);
skb = tp->rx_std_buffers[desc_idx].skb;
post_ptr = &tp->rx_std_ptr;
rx_std_posted++;
} else if (opaque_key == RXD_OPAQUE_RING_JUMBO) {
dma_addr = pci_unmap_addr(&tp->rx_jumbo_buffers[desc_idx],
mapping);
skb = tp->rx_jumbo_buffers[desc_idx].skb;
post_ptr = &tp->rx_jumbo_ptr;
}
else {
goto next_pkt_nopost;
}
work_mask |= opaque_key;
if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
(desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII)) {
drop_it:
tg3_recycle_rx(tp, opaque_key,
desc_idx, *post_ptr);
drop_it_no_recycle:
/* Other statistics kept track of by card. */
tp->net_stats.rx_dropped++;
goto next_pkt;
}
len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) -
ETH_FCS_LEN;
if (len > RX_COPY_THRESHOLD
&& tp->rx_offset == NET_IP_ALIGN
/* rx_offset will likely not equal NET_IP_ALIGN
* if this is a 5701 card running in PCI-X mode
* [see tg3_get_invariants()]
*/
) {
int skb_size;
skb_size = tg3_alloc_rx_skb(tp, opaque_key,
desc_idx, *post_ptr);
if (skb_size < 0)
goto drop_it;
pci_unmap_single(tp->pdev, dma_addr,
skb_size - tp->rx_offset,
PCI_DMA_FROMDEVICE);
skb_put(skb, len);
} else {
struct sk_buff *copy_skb;
tg3_recycle_rx(tp, opaque_key,
desc_idx, *post_ptr);
copy_skb = netdev_alloc_skb(tp->dev,
len + TG3_RAW_IP_ALIGN);
if (copy_skb == NULL)
goto drop_it_no_recycle;
skb_reserve(copy_skb, TG3_RAW_IP_ALIGN);
skb_put(copy_skb, len);
pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
skb_copy_from_linear_data(skb, copy_skb->data, len);
pci_dma_sync_single_for_device(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
/* We'll reuse the original ring buffer. */
skb = copy_skb;
}
if ((tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) &&
(desc->type_flags & RXD_FLAG_TCPUDP_CSUM) &&
(((desc->ip_tcp_csum & RXD_TCPCSUM_MASK)
>> RXD_TCPCSUM_SHIFT) == 0xffff))
skb->ip_summed = CHECKSUM_UNNECESSARY;
else
skb->ip_summed = CHECKSUM_NONE;
skb->protocol = eth_type_trans(skb, tp->dev);
if (len > (tp->dev->mtu + ETH_HLEN) &&
skb->protocol != htons(ETH_P_8021Q)) {
dev_kfree_skb(skb);
goto next_pkt;
}
#if TG3_VLAN_TAG_USED
if (tp->vlgrp != NULL &&
desc->type_flags & RXD_FLAG_VLAN) {
tg3_vlan_rx(tp, skb,
desc->err_vlan & RXD_VLAN_MASK);
} else
#endif
napi_gro_receive(&tp->napi, skb);
received++;
budget--;
next_pkt:
(*post_ptr)++;
if (unlikely(rx_std_posted >= tp->rx_std_max_post)) {
u32 idx = *post_ptr % TG3_RX_RING_SIZE;
tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX +
TG3_64BIT_REG_LOW, idx);
work_mask &= ~RXD_OPAQUE_RING_STD;
rx_std_posted = 0;
}
next_pkt_nopost:
sw_idx++;
sw_idx &= (TG3_RX_RCB_RING_SIZE(tp) - 1);
/* Refresh hw_idx to see if there is new work */
if (sw_idx == hw_idx) {
hw_idx = tp->hw_status->idx[0].rx_producer;
rmb();
}
}
/* ACK the status ring. */
tp->rx_rcb_ptr = sw_idx;
tw32_rx_mbox(MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW, sw_idx);
/* Refill RX ring(s). */
if (work_mask & RXD_OPAQUE_RING_STD) {
sw_idx = tp->rx_std_ptr % TG3_RX_RING_SIZE;
tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW,
sw_idx);
}
if (work_mask & RXD_OPAQUE_RING_JUMBO) {
sw_idx = tp->rx_jumbo_ptr % TG3_RX_JUMBO_RING_SIZE;
tw32_rx_mbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW,
sw_idx);
}
mmiowb();
return received;
}
static int tg3_poll_work(struct tg3 *tp, int work_done, int budget)
{
struct tg3_hw_status *sblk = tp->hw_status;
/* handle link change and other phy events */
if (!(tp->tg3_flags &
(TG3_FLAG_USE_LINKCHG_REG |
TG3_FLAG_POLL_SERDES))) {
if (sblk->status & SD_STATUS_LINK_CHG) {
sblk->status = SD_STATUS_UPDATED |
(sblk->status & ~SD_STATUS_LINK_CHG);
spin_lock(&tp->lock);
if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
tw32_f(MAC_STATUS,
(MAC_STATUS_SYNC_CHANGED |
MAC_STATUS_CFG_CHANGED |
MAC_STATUS_MI_COMPLETION |
MAC_STATUS_LNKSTATE_CHANGED));
udelay(40);
} else
tg3_setup_phy(tp, 0);
spin_unlock(&tp->lock);
}
}
/* run TX completion thread */
if (sblk->idx[0].tx_consumer != tp->tx_cons) {
tg3_tx(tp);
if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
return work_done;
}
/* run RX thread, within the bounds set by NAPI.
* All RX "locking" is done by ensuring outside
* code synchronizes with tg3->napi.poll()
*/
if (sblk->idx[0].rx_producer != tp->rx_rcb_ptr)
work_done += tg3_rx(tp, budget - work_done);
return work_done;
}
static int tg3_poll(struct napi_struct *napi, int budget)
{
struct tg3 *tp = container_of(napi, struct tg3, napi);
int work_done = 0;
struct tg3_hw_status *sblk = tp->hw_status;
while (1) {
work_done = tg3_poll_work(tp, work_done, budget);
if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
goto tx_recovery;
if (unlikely(work_done >= budget))
break;
if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
/* tp->last_tag is used in tg3_restart_ints() below
* to tell the hw how much work has been processed,
* so we must read it before checking for more work.
*/
tp->last_tag = sblk->status_tag;
tp->last_irq_tag = tp->last_tag;
rmb();
} else
sblk->status &= ~SD_STATUS_UPDATED;
if (likely(!tg3_has_work(tp))) {
napi_complete(napi);
tg3_restart_ints(tp);
break;
}
}
return work_done;
tx_recovery:
/* work_done is guaranteed to be less than budget. */
napi_complete(napi);
schedule_work(&tp->reset_task);
return work_done;
}
static void tg3_irq_quiesce(struct tg3 *tp)
{
BUG_ON(tp->irq_sync);
tp->irq_sync = 1;
smp_mb();
synchronize_irq(tp->pdev->irq);
}
static inline int tg3_irq_sync(struct tg3 *tp)
{
return tp->irq_sync;
}
/* Fully shutdown all tg3 driver activity elsewhere in the system.
* If irq_sync is non-zero, then the IRQ handler must be synchronized
* with as well. Most of the time, this is not necessary except when
* shutting down the device.
*/
static inline void tg3_full_lock(struct tg3 *tp, int irq_sync)
{
spin_lock_bh(&tp->lock);
if (irq_sync)
tg3_irq_quiesce(tp);
}
static inline void tg3_full_unlock(struct tg3 *tp)
{
spin_unlock_bh(&tp->lock);
}
/* One-shot MSI handler - Chip automatically disables interrupt
* after sending MSI so driver doesn't have to do it.
*/
static irqreturn_t tg3_msi_1shot(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct tg3 *tp = netdev_priv(dev);
prefetch(tp->hw_status);
prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
if (likely(!tg3_irq_sync(tp)))
napi_schedule(&tp->napi);
return IRQ_HANDLED;
}
/* MSI ISR - No need to check for interrupt sharing and no need to
* flush status block and interrupt mailbox. PCI ordering rules
* guarantee that MSI will arrive after the status block.
*/
static irqreturn_t tg3_msi(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct tg3 *tp = netdev_priv(dev);
prefetch(tp->hw_status);
prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
/*
* Writing any value to intr-mbox-0 clears PCI INTA# and
* chip-internal interrupt pending events.
* Writing non-zero to intr-mbox-0 additional tells the
* NIC to stop sending us irqs, engaging "in-intr-handler"
* event coalescing.
*/
tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
if (likely(!tg3_irq_sync(tp)))
napi_schedule(&tp->napi);
return IRQ_RETVAL(1);
}
static irqreturn_t tg3_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct tg3 *tp = netdev_priv(dev);
struct tg3_hw_status *sblk = tp->hw_status;
unsigned int handled = 1;
/* In INTx mode, it is possible for the interrupt to arrive at
* the CPU before the status block posted prior to the interrupt.
* Reading the PCI State register will confirm whether the
* interrupt is ours and will flush the status block.
*/
if (unlikely(!(sblk->status & SD_STATUS_UPDATED))) {
if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
handled = 0;
goto out;
}
}
/*
* Writing any value to intr-mbox-0 clears PCI INTA# and
* chip-internal interrupt pending events.
* Writing non-zero to intr-mbox-0 additional tells the
* NIC to stop sending us irqs, engaging "in-intr-handler"
* event coalescing.
*
* Flush the mailbox to de-assert the IRQ immediately to prevent
* spurious interrupts. The flush impacts performance but
* excessive spurious interrupts can be worse in some cases.
*/
tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
if (tg3_irq_sync(tp))
goto out;
sblk->status &= ~SD_STATUS_UPDATED;
if (likely(tg3_has_work(tp))) {
prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
napi_schedule(&tp->napi);
} else {
/* No work, shared interrupt perhaps? re-enable
* interrupts, and flush that PCI write
*/
tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
0x00000000);
}
out:
return IRQ_RETVAL(handled);
}
static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct tg3 *tp = netdev_priv(dev);
struct tg3_hw_status *sblk = tp->hw_status;
unsigned int handled = 1;
/* In INTx mode, it is possible for the interrupt to arrive at
* the CPU before the status block posted prior to the interrupt.
* Reading the PCI State register will confirm whether the
* interrupt is ours and will flush the status block.
*/
if (unlikely(sblk->status_tag == tp->last_irq_tag)) {
if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
handled = 0;
goto out;
}
}
/*
* writing any value to intr-mbox-0 clears PCI INTA# and
* chip-internal interrupt pending events.
* writing non-zero to intr-mbox-0 additional tells the
* NIC to stop sending us irqs, engaging "in-intr-handler"
* event coalescing.
*
* Flush the mailbox to de-assert the IRQ immediately to prevent
* spurious interrupts. The flush impacts performance but
* excessive spurious interrupts can be worse in some cases.
*/
tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
/*
* In a shared interrupt configuration, sometimes other devices'
* interrupts will scream. We record the current status tag here
* so that the above check can report that the screaming interrupts
* are unhandled. Eventually they will be silenced.
*/
tp->last_irq_tag = sblk->status_tag;
if (tg3_irq_sync(tp))
goto out;
prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
napi_schedule(&tp->napi);
out:
return IRQ_RETVAL(handled);
}
/* ISR for interrupt test */
static irqreturn_t tg3_test_isr(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct tg3 *tp = netdev_priv(dev);
struct tg3_hw_status *sblk = tp->hw_status;
if ((sblk->status & SD_STATUS_UPDATED) ||
!(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
tg3_disable_ints(tp);
return IRQ_RETVAL(1);
}
return IRQ_RETVAL(0);
}
static int tg3_init_hw(struct tg3 *, int);
static int tg3_halt(struct tg3 *, int, int);
/* Restart hardware after configuration changes, self-test, etc.
* Invoked with tp->lock held.
*/
static int tg3_restart_hw(struct tg3 *tp, int reset_phy)
__releases(tp->lock)
__acquires(tp->lock)
{
int err;
err = tg3_init_hw(tp, reset_phy);
if (err) {
printk(KERN_ERR PFX "%s: Failed to re-initialize device, "
"aborting.\n", tp->dev->name);
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
tg3_full_unlock(tp);
del_timer_sync(&tp->timer);
tp->irq_sync = 0;
napi_enable(&tp->napi);
dev_close(tp->dev);
tg3_full_lock(tp, 0);
}
return err;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void tg3_poll_controller(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
tg3_interrupt(tp->pdev->irq, dev);
}
#endif
static void tg3_reset_task(struct work_struct *work)
{
struct tg3 *tp = container_of(work, struct tg3, reset_task);
int err;
unsigned int restart_timer;
tg3_full_lock(tp, 0);
if (!netif_running(tp->dev)) {
tg3_full_unlock(tp);
return;
}
tg3_full_unlock(tp);
tg3_phy_stop(tp);
tg3_netif_stop(tp);
tg3_full_lock(tp, 1);
restart_timer = tp->tg3_flags2 & TG3_FLG2_RESTART_TIMER;
tp->tg3_flags2 &= ~TG3_FLG2_RESTART_TIMER;
if (tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING) {
tp->write32_tx_mbox = tg3_write32_tx_mbox;
tp->write32_rx_mbox = tg3_write_flush_reg32;
tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
tp->tg3_flags &= ~TG3_FLAG_TX_RECOVERY_PENDING;
}
tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
err = tg3_init_hw(tp, 1);
if (err)
goto out;
tg3_netif_start(tp);
if (restart_timer)
mod_timer(&tp->timer, jiffies + 1);
out:
tg3_full_unlock(tp);
if (!err)
tg3_phy_start(tp);
}
static void tg3_dump_short_state(struct tg3 *tp)
{
printk(KERN_ERR PFX "DEBUG: MAC_TX_STATUS[%08x] MAC_RX_STATUS[%08x]\n",
tr32(MAC_TX_STATUS), tr32(MAC_RX_STATUS));
printk(KERN_ERR PFX "DEBUG: RDMAC_STATUS[%08x] WDMAC_STATUS[%08x]\n",
tr32(RDMAC_STATUS), tr32(WDMAC_STATUS));
}
static void tg3_tx_timeout(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
if (netif_msg_tx_err(tp)) {
printk(KERN_ERR PFX "%s: transmit timed out, resetting\n",
dev->name);
tg3_dump_short_state(tp);
}
schedule_work(&tp->reset_task);
}
/* Test for DMA buffers crossing any 4GB boundaries: 4G, 8G, etc */
static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
{
u32 base = (u32) mapping & 0xffffffff;
return ((base > 0xffffdcc0) &&
(base + len + 8 < base));
}
/* Test for DMA addresses > 40-bit */
static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
int len)
{
#if defined(CONFIG_HIGHMEM) && (BITS_PER_LONG == 64)
if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG)
return (((u64) mapping + len) > DMA_BIT_MASK(40));
return 0;
#else
return 0;
#endif
}
static void tg3_set_txd(struct tg3 *, int, dma_addr_t, int, u32, u32);
/* Workaround 4GB and 40-bit hardware DMA bugs. */
static int tigon3_dma_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
u32 last_plus_one, u32 *start,
u32 base_flags, u32 mss)
{
struct sk_buff *new_skb;
dma_addr_t new_addr = 0;
u32 entry = *start;
int i, ret = 0;
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
new_skb = skb_copy(skb, GFP_ATOMIC);
else {
int more_headroom = 4 - ((unsigned long)skb->data & 3);
new_skb = skb_copy_expand(skb,
skb_headroom(skb) + more_headroom,
skb_tailroom(skb), GFP_ATOMIC);
}
if (!new_skb) {
ret = -1;
} else {
/* New SKB is guaranteed to be linear. */
entry = *start;
ret = skb_dma_map(&tp->pdev->dev, new_skb, DMA_TO_DEVICE);
new_addr = skb_shinfo(new_skb)->dma_head;
/* Make sure new skb does not cross any 4G boundaries.
* Drop the packet if it does.
*/
if (ret || tg3_4g_overflow_test(new_addr, new_skb->len)) {
if (!ret)
skb_dma_unmap(&tp->pdev->dev, new_skb,
DMA_TO_DEVICE);
ret = -1;
dev_kfree_skb(new_skb);
new_skb = NULL;
} else {
tg3_set_txd(tp, entry, new_addr, new_skb->len,
base_flags, 1 | (mss << 1));
*start = NEXT_TX(entry);
}
}
/* Now clean up the sw ring entries. */
i = 0;
while (entry != last_plus_one) {
if (i == 0) {
tp->tx_buffers[entry].skb = new_skb;
} else {
tp->tx_buffers[entry].skb = NULL;
}
entry = NEXT_TX(entry);
i++;
}
skb_dma_unmap(&tp->pdev->dev, skb, DMA_TO_DEVICE);
dev_kfree_skb(skb);
return ret;
}
static void tg3_set_txd(struct tg3 *tp, int entry,
dma_addr_t mapping, int len, u32 flags,
u32 mss_and_is_end)
{
struct tg3_tx_buffer_desc *txd = &tp->tx_ring[entry];
int is_end = (mss_and_is_end & 0x1);
u32 mss = (mss_and_is_end >> 1);
u32 vlan_tag = 0;
if (is_end)
flags |= TXD_FLAG_END;
if (flags & TXD_FLAG_VLAN) {
vlan_tag = flags >> 16;
flags &= 0xffff;
}
vlan_tag |= (mss << TXD_MSS_SHIFT);
txd->addr_hi = ((u64) mapping >> 32);
txd->addr_lo = ((u64) mapping & 0xffffffff);
txd->len_flags = (len << TXD_LEN_SHIFT) | flags;
txd->vlan_tag = vlan_tag << TXD_VLAN_TAG_SHIFT;
}
/* hard_start_xmit for devices that don't have any bugs and
* support TG3_FLG2_HW_TSO_2 only.
*/
static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
u32 len, entry, base_flags, mss;
struct skb_shared_info *sp;
dma_addr_t mapping;
len = skb_headlen(skb);
/* We are running in BH disabled context with netif_tx_lock
* and TX reclaim runs via tp->napi.poll inside of a software
* interrupt. Furthermore, IRQ processing runs lockless so we have
* no IRQ context deadlocks to worry about either. Rejoice!
*/
if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->nr_frags + 1))) {
if (!netif_queue_stopped(dev)) {
netif_stop_queue(dev);
/* This is a hard error, log it. */
printk(KERN_ERR PFX "%s: BUG! Tx Ring full when "
"queue awake!\n", dev->name);
}
return NETDEV_TX_BUSY;
}
entry = tp->tx_prod;
base_flags = 0;
mss = 0;
if ((mss = skb_shinfo(skb)->gso_size) != 0) {
int tcp_opt_len, ip_tcp_len;
if (skb_header_cloned(skb) &&
pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
dev_kfree_skb(skb);
goto out_unlock;
}
if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
mss |= (skb_headlen(skb) - ETH_HLEN) << 9;
else {
struct iphdr *iph = ip_hdr(skb);
tcp_opt_len = tcp_optlen(skb);
ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
iph->check = 0;
iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
mss |= (ip_tcp_len + tcp_opt_len) << 9;
}
base_flags |= (TXD_FLAG_CPU_PRE_DMA |
TXD_FLAG_CPU_POST_DMA);
tcp_hdr(skb)->check = 0;
}
else if (skb->ip_summed == CHECKSUM_PARTIAL)
base_flags |= TXD_FLAG_TCPUDP_CSUM;
#if TG3_VLAN_TAG_USED
if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
base_flags |= (TXD_FLAG_VLAN |
(vlan_tx_tag_get(skb) << 16));
#endif
if (skb_dma_map(&tp->pdev->dev, skb, DMA_TO_DEVICE)) {
dev_kfree_skb(skb);
goto out_unlock;
}
sp = skb_shinfo(skb);
mapping = sp->dma_head;
tp->tx_buffers[entry].skb = skb;
tg3_set_txd(tp, entry, mapping, len, base_flags,
(skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
entry = NEXT_TX(entry);
/* Now loop through additional data fragments, and queue them. */
if (skb_shinfo(skb)->nr_frags > 0) {
unsigned int i, last;
last = skb_shinfo(skb)->nr_frags - 1;
for (i = 0; i <= last; i++) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
len = frag->size;
mapping = sp->dma_maps[i];
tp->tx_buffers[entry].skb = NULL;
tg3_set_txd(tp, entry, mapping, len,
base_flags, (i == last) | (mss << 1));
entry = NEXT_TX(entry);
}
}
/* Packets are ready, update Tx producer idx local and on card. */
tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW), entry);
tp->tx_prod = entry;
if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) {
netif_stop_queue(dev);
if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp))
netif_wake_queue(tp->dev);
}
out_unlock:
mmiowb();
return NETDEV_TX_OK;
}
static int tg3_start_xmit_dma_bug(struct sk_buff *, struct net_device *);
/* Use GSO to workaround a rare TSO bug that may be triggered when the
* TSO header is greater than 80 bytes.
*/
static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
{
struct sk_buff *segs, *nskb;
/* Estimate the number of fragments in the worst case */
if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->gso_segs * 3))) {
netif_stop_queue(tp->dev);
if (tg3_tx_avail(tp) <= (skb_shinfo(skb)->gso_segs * 3))
return NETDEV_TX_BUSY;
netif_wake_queue(tp->dev);
}
segs = skb_gso_segment(skb, tp->dev->features & ~NETIF_F_TSO);
if (IS_ERR(segs))
goto tg3_tso_bug_end;
do {
nskb = segs;
segs = segs->next;
nskb->next = NULL;
tg3_start_xmit_dma_bug(nskb, tp->dev);
} while (segs);
tg3_tso_bug_end:
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
/* hard_start_xmit for devices that have the 4G bug and/or 40-bit bug and
* support TG3_FLG2_HW_TSO_1 or firmware TSO only.
*/
static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
u32 len, entry, base_flags, mss;
struct skb_shared_info *sp;
int would_hit_hwbug;
dma_addr_t mapping;
len = skb_headlen(skb);
/* We are running in BH disabled context with netif_tx_lock
* and TX reclaim runs via tp->napi.poll inside of a software
* interrupt. Furthermore, IRQ processing runs lockless so we have
* no IRQ context deadlocks to worry about either. Rejoice!
*/
if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->nr_frags + 1))) {
if (!netif_queue_stopped(dev)) {
netif_stop_queue(dev);
/* This is a hard error, log it. */
printk(KERN_ERR PFX "%s: BUG! Tx Ring full when "
"queue awake!\n", dev->name);
}
return NETDEV_TX_BUSY;
}
entry = tp->tx_prod;
base_flags = 0;
if (skb->ip_summed == CHECKSUM_PARTIAL)
base_flags |= TXD_FLAG_TCPUDP_CSUM;
mss = 0;
if ((mss = skb_shinfo(skb)->gso_size) != 0) {
struct iphdr *iph;
int tcp_opt_len, ip_tcp_len, hdr_len;
if (skb_header_cloned(skb) &&
pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
dev_kfree_skb(skb);
goto out_unlock;
}
tcp_opt_len = tcp_optlen(skb);
ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
hdr_len = ip_tcp_len + tcp_opt_len;
if (unlikely((ETH_HLEN + hdr_len) > 80) &&
(tp->tg3_flags2 & TG3_FLG2_TSO_BUG))
return (tg3_tso_bug(tp, skb));
base_flags |= (TXD_FLAG_CPU_PRE_DMA |
TXD_FLAG_CPU_POST_DMA);
iph = ip_hdr(skb);
iph->check = 0;
iph->tot_len = htons(mss + hdr_len);
if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
tcp_hdr(skb)->check = 0;
base_flags &= ~TXD_FLAG_TCPUDP_CSUM;
} else
tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
iph->daddr, 0,
IPPROTO_TCP,
0);
if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)) {
if (tcp_opt_len || iph->ihl > 5) {
int tsflags;
tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
mss |= (tsflags << 11);
}
} else {
if (tcp_opt_len || iph->ihl > 5) {
int tsflags;
tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
base_flags |= tsflags << 12;
}
}
}
#if TG3_VLAN_TAG_USED
if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
base_flags |= (TXD_FLAG_VLAN |
(vlan_tx_tag_get(skb) << 16));
#endif
if (skb_dma_map(&tp->pdev->dev, skb, DMA_TO_DEVICE)) {
dev_kfree_skb(skb);
goto out_unlock;
}
sp = skb_shinfo(skb);
mapping = sp->dma_head;
tp->tx_buffers[entry].skb = skb;
would_hit_hwbug = 0;
if (tp->tg3_flags3 & TG3_FLG3_5701_DMA_BUG)
would_hit_hwbug = 1;
else if (tg3_4g_overflow_test(mapping, len))
would_hit_hwbug = 1;
tg3_set_txd(tp, entry, mapping, len, base_flags,
(skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
entry = NEXT_TX(entry);
/* Now loop through additional data fragments, and queue them. */
if (skb_shinfo(skb)->nr_frags > 0) {
unsigned int i, last;
last = skb_shinfo(skb)->nr_frags - 1;
for (i = 0; i <= last; i++) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
len = frag->size;
mapping = sp->dma_maps[i];
tp->tx_buffers[entry].skb = NULL;
if (tg3_4g_overflow_test(mapping, len))
would_hit_hwbug = 1;
if (tg3_40bit_overflow_test(tp, mapping, len))
would_hit_hwbug = 1;
if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
tg3_set_txd(tp, entry, mapping, len,
base_flags, (i == last)|(mss << 1));
else
tg3_set_txd(tp, entry, mapping, len,
base_flags, (i == last));
entry = NEXT_TX(entry);
}
}
if (would_hit_hwbug) {
u32 last_plus_one = entry;
u32 start;
start = entry - 1 - skb_shinfo(skb)->nr_frags;
start &= (TG3_TX_RING_SIZE - 1);
/* If the workaround fails due to memory/mapping
* failure, silently drop this packet.
*/
if (tigon3_dma_hwbug_workaround(tp, skb, last_plus_one,
&start, base_flags, mss))
goto out_unlock;
entry = start;
}
/* Packets are ready, update Tx producer idx local and on card. */
tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW), entry);
tp->tx_prod = entry;
if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) {
netif_stop_queue(dev);
if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp))
netif_wake_queue(tp->dev);
}
out_unlock:
mmiowb();
return NETDEV_TX_OK;
}
static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
int new_mtu)
{
dev->mtu = new_mtu;
if (new_mtu > ETH_DATA_LEN) {
if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
ethtool_op_set_tso(dev, 0);
}
else
tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
} else {
if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;
}
}
static int tg3_change_mtu(struct net_device *dev, int new_mtu)
{
struct tg3 *tp = netdev_priv(dev);
int err;
if (new_mtu < TG3_MIN_MTU || new_mtu > TG3_MAX_MTU(tp))
return -EINVAL;
if (!netif_running(dev)) {
/* We'll just catch it later when the
* device is up'd.
*/
tg3_set_mtu(dev, tp, new_mtu);
return 0;
}
tg3_phy_stop(tp);
tg3_netif_stop(tp);
tg3_full_lock(tp, 1);
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
tg3_set_mtu(dev, tp, new_mtu);
err = tg3_restart_hw(tp, 0);
if (!err)
tg3_netif_start(tp);
tg3_full_unlock(tp);
if (!err)
tg3_phy_start(tp);
return err;
}
/* Free up pending packets in all rx/tx rings.
*
* The chip has been shut down and the driver detached from
* the networking, so no interrupts or new tx packets will
* end up in the driver. tp->{tx,}lock is not held and we are not
* in an interrupt context and thus may sleep.
*/
static void tg3_free_rings(struct tg3 *tp)
{
struct ring_info *rxp;
int i;
for (i = 0; i < TG3_RX_RING_SIZE; i++) {
rxp = &tp->rx_std_buffers[i];
if (rxp->skb == NULL)
continue;
pci_unmap_single(tp->pdev,
pci_unmap_addr(rxp, mapping),
tp->rx_pkt_buf_sz - tp->rx_offset,
PCI_DMA_FROMDEVICE);
dev_kfree_skb_any(rxp->skb);
rxp->skb = NULL;
}
for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++) {
rxp = &tp->rx_jumbo_buffers[i];
if (rxp->skb == NULL)
continue;
pci_unmap_single(tp->pdev,
pci_unmap_addr(rxp, mapping),
RX_JUMBO_PKT_BUF_SZ - tp->rx_offset,
PCI_DMA_FROMDEVICE);
dev_kfree_skb_any(rxp->skb);
rxp->skb = NULL;
}
for (i = 0; i < TG3_TX_RING_SIZE; ) {
struct tx_ring_info *txp;
struct sk_buff *skb;
txp = &tp->tx_buffers[i];
skb = txp->skb;
if (skb == NULL) {
i++;
continue;
}
skb_dma_unmap(&tp->pdev->dev, skb, DMA_TO_DEVICE);
txp->skb = NULL;
i += skb_shinfo(skb)->nr_frags + 1;
dev_kfree_skb_any(skb);
}
}
/* Initialize tx/rx rings for packet processing.
*
* The chip has been shut down and the driver detached from
* the networking, so no interrupts or new tx packets will
* end up in the driver. tp->{tx,}lock are held and thus
* we may not sleep.
*/
static int tg3_init_rings(struct tg3 *tp)
{
u32 i;
/* Free up all the SKBs. */
tg3_free_rings(tp);
/* Zero out all descriptors. */
memset(tp->rx_std, 0, TG3_RX_RING_BYTES);
memset(tp->rx_jumbo, 0, TG3_RX_JUMBO_RING_BYTES);
memset(tp->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
memset(tp->tx_ring, 0, TG3_TX_RING_BYTES);
tp->rx_pkt_buf_sz = RX_PKT_BUF_SZ;
if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) &&
(tp->dev->mtu > ETH_DATA_LEN))
tp->rx_pkt_buf_sz = RX_JUMBO_PKT_BUF_SZ;
/* Initialize invariants of the rings, we only set this
* stuff once. This works because the card does not
* write into the rx buffer posting rings.
*/
for (i = 0; i < TG3_RX_RING_SIZE; i++) {
struct tg3_rx_buffer_desc *rxd;
rxd = &tp->rx_std[i];
rxd->idx_len = (tp->rx_pkt_buf_sz - tp->rx_offset - 64)
<< RXD_LEN_SHIFT;
rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT);
rxd->opaque = (RXD_OPAQUE_RING_STD |
(i << RXD_OPAQUE_INDEX_SHIFT));
}
if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++) {
struct tg3_rx_buffer_desc *rxd;
rxd = &tp->rx_jumbo[i];
rxd->idx_len = (RX_JUMBO_PKT_BUF_SZ - tp->rx_offset - 64)
<< RXD_LEN_SHIFT;
rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT) |
RXD_FLAG_JUMBO;
rxd->opaque = (RXD_OPAQUE_RING_JUMBO |
(i << RXD_OPAQUE_INDEX_SHIFT));
}
}
/* Now allocate fresh SKBs for each rx ring. */
for (i = 0; i < tp->rx_pending; i++) {
if (tg3_alloc_rx_skb(tp, RXD_OPAQUE_RING_STD, -1, i) < 0) {
printk(KERN_WARNING PFX
"%s: Using a smaller RX standard ring, "
"only %d out of %d buffers were allocated "
"successfully.\n",
tp->dev->name, i, tp->rx_pending);
if (i == 0)
return -ENOMEM;
tp->rx_pending = i;
break;
}
}
if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
for (i = 0; i < tp->rx_jumbo_pending; i++) {
if (tg3_alloc_rx_skb(tp, RXD_OPAQUE_RING_JUMBO,
-1, i) < 0) {
printk(KERN_WARNING PFX
"%s: Using a smaller RX jumbo ring, "
"only %d out of %d buffers were "
"allocated successfully.\n",
tp->dev->name, i, tp->rx_jumbo_pending);
if (i == 0) {
tg3_free_rings(tp);
return -ENOMEM;
}
tp->rx_jumbo_pending = i;
break;
}
}
}
return 0;
}
/*
* Must not be invoked with interrupt sources disabled and
* the hardware shutdown down.
*/
static void tg3_free_consistent(struct tg3 *tp)
{
kfree(tp->rx_std_buffers);
tp->rx_std_buffers = NULL;
if (tp->rx_std) {
pci_free_consistent(tp->pdev, TG3_RX_RING_BYTES,
tp->rx_std, tp->rx_std_mapping);
tp->rx_std = NULL;
}
if (tp->rx_jumbo) {
pci_free_consistent(tp->pdev, TG3_RX_JUMBO_RING_BYTES,
tp->rx_jumbo, tp->rx_jumbo_mapping);
tp->rx_jumbo = NULL;
}
if (tp->rx_rcb) {
pci_free_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp),
tp->rx_rcb, tp->rx_rcb_mapping);
tp->rx_rcb = NULL;
}
if (tp->tx_ring) {
pci_free_consistent(tp->pdev, TG3_TX_RING_BYTES,
tp->tx_ring, tp->tx_desc_mapping);
tp->tx_ring = NULL;
}
if (tp->hw_status) {
pci_free_consistent(tp->pdev, TG3_HW_STATUS_SIZE,
tp->hw_status, tp->status_mapping);
tp->hw_status = NULL;
}
if (tp->hw_stats) {
pci_free_consistent(tp->pdev, sizeof(struct tg3_hw_stats),
tp->hw_stats, tp->stats_mapping);
tp->hw_stats = NULL;
}
}
/*
* Must not be invoked with interrupt sources disabled and
* the hardware shutdown down. Can sleep.
*/
static int tg3_alloc_consistent(struct tg3 *tp)
{
tp->rx_std_buffers = kzalloc((sizeof(struct ring_info) *
(TG3_RX_RING_SIZE +
TG3_RX_JUMBO_RING_SIZE)) +
(sizeof(struct tx_ring_info) *
TG3_TX_RING_SIZE),
GFP_KERNEL);
if (!tp->rx_std_buffers)
return -ENOMEM;
tp->rx_jumbo_buffers = &tp->rx_std_buffers[TG3_RX_RING_SIZE];
tp->tx_buffers = (struct tx_ring_info *)
&tp->rx_jumbo_buffers[TG3_RX_JUMBO_RING_SIZE];
tp->rx_std = pci_alloc_consistent(tp->pdev, TG3_RX_RING_BYTES,
&tp->rx_std_mapping);
if (!tp->rx_std)
goto err_out;
tp->rx_jumbo = pci_alloc_consistent(tp->pdev, TG3_RX_JUMBO_RING_BYTES,
&tp->rx_jumbo_mapping);
if (!tp->rx_jumbo)
goto err_out;
tp->rx_rcb = pci_alloc_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp),
&tp->rx_rcb_mapping);
if (!tp->rx_rcb)
goto err_out;
tp->tx_ring = pci_alloc_consistent(tp->pdev, TG3_TX_RING_BYTES,
&tp->tx_desc_mapping);
if (!tp->tx_ring)
goto err_out;
tp->hw_status = pci_alloc_consistent(tp->pdev,
TG3_HW_STATUS_SIZE,
&tp->status_mapping);
if (!tp->hw_status)
goto err_out;
tp->hw_stats = pci_alloc_consistent(tp->pdev,
sizeof(struct tg3_hw_stats),
&tp->stats_mapping);
if (!tp->hw_stats)
goto err_out;
memset(tp->hw_status, 0, TG3_HW_STATUS_SIZE);
memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
return 0;
err_out:
tg3_free_consistent(tp);
return -ENOMEM;
}
#define MAX_WAIT_CNT 1000
/* To stop a block, clear the enable bit and poll till it
* clears. tp->lock is held.
*/
static int tg3_stop_block(struct tg3 *tp, unsigned long ofs, u32 enable_bit, int silent)
{
unsigned int i;
u32 val;
if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
switch (ofs) {
case RCVLSC_MODE:
case DMAC_MODE:
case MBFREE_MODE:
case BUFMGR_MODE:
case MEMARB_MODE:
/* We can't enable/disable these bits of the
* 5705/5750, just say success.
*/
return 0;
default:
break;
}
}
val = tr32(ofs);
val &= ~enable_bit;
tw32_f(ofs, val);
for (i = 0; i < MAX_WAIT_CNT; i++) {
udelay(100);
val = tr32(ofs);
if ((val & enable_bit) == 0)
break;
}
if (i == MAX_WAIT_CNT && !silent) {
printk(KERN_ERR PFX "tg3_stop_block timed out, "
"ofs=%lx enable_bit=%x\n",
ofs, enable_bit);
return -ENODEV;
}
return 0;
}
/* tp->lock is held. */
static int tg3_abort_hw(struct tg3 *tp, int silent)
{
int i, err;
tg3_disable_ints(tp);
tp->rx_mode &= ~RX_MODE_ENABLE;
tw32_f(MAC_RX_MODE, tp->rx_mode);
udelay(10);
err = tg3_stop_block(tp, RCVBDI_MODE, RCVBDI_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, RCVLPC_MODE, RCVLPC_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, RCVLSC_MODE, RCVLSC_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, RCVDBDI_MODE, RCVDBDI_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, RCVDCC_MODE, RCVDCC_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, RCVCC_MODE, RCVCC_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, SNDBDS_MODE, SNDBDS_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, SNDBDI_MODE, SNDBDI_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, SNDDATAI_MODE, SNDDATAI_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, RDMAC_MODE, RDMAC_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, SNDDATAC_MODE, SNDDATAC_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, DMAC_MODE, DMAC_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, SNDBDC_MODE, SNDBDC_MODE_ENABLE, silent);
tp->mac_mode &= ~MAC_MODE_TDE_ENABLE;
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
tp->tx_mode &= ~TX_MODE_ENABLE;
tw32_f(MAC_TX_MODE, tp->tx_mode);
for (i = 0; i < MAX_WAIT_CNT; i++) {
udelay(100);
if (!(tr32(MAC_TX_MODE) & TX_MODE_ENABLE))
break;
}
if (i >= MAX_WAIT_CNT) {
printk(KERN_ERR PFX "tg3_abort_hw timed out for %s, "
"TX_MODE_ENABLE will not clear MAC_TX_MODE=%08x\n",
tp->dev->name, tr32(MAC_TX_MODE));
err |= -ENODEV;
}
err |= tg3_stop_block(tp, HOSTCC_MODE, HOSTCC_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, WDMAC_MODE, WDMAC_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, MBFREE_MODE, MBFREE_MODE_ENABLE, silent);
tw32(FTQ_RESET, 0xffffffff);
tw32(FTQ_RESET, 0x00000000);
err |= tg3_stop_block(tp, BUFMGR_MODE, BUFMGR_MODE_ENABLE, silent);
err |= tg3_stop_block(tp, MEMARB_MODE, MEMARB_MODE_ENABLE, silent);
if (tp->hw_status)
memset(tp->hw_status, 0, TG3_HW_STATUS_SIZE);
if (tp->hw_stats)
memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
return err;
}
static void tg3_ape_send_event(struct tg3 *tp, u32 event)
{
int i;
u32 apedata;
apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
if (apedata != APE_SEG_SIG_MAGIC)
return;
apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
if (!(apedata & APE_FW_STATUS_READY))
return;
/* Wait for up to 1 millisecond for APE to service previous event. */
for (i = 0; i < 10; i++) {
if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM))
return;
apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
tg3_ape_write32(tp, TG3_APE_EVENT_STATUS,
event | APE_EVENT_STATUS_EVENT_PENDING);
tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
break;
udelay(100);
}
if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
}
static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
{
u32 event;
u32 apedata;
if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
return;
switch (kind) {
case RESET_KIND_INIT:
tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG,
APE_HOST_SEG_SIG_MAGIC);
tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN,
APE_HOST_SEG_LEN_MAGIC);
apedata = tg3_ape_read32(tp, TG3_APE_HOST_INIT_COUNT);
tg3_ape_write32(tp, TG3_APE_HOST_INIT_COUNT, ++apedata);
tg3_ape_write32(tp, TG3_APE_HOST_DRIVER_ID,
APE_HOST_DRIVER_ID_MAGIC);
tg3_ape_write32(tp, TG3_APE_HOST_BEHAVIOR,
APE_HOST_BEHAV_NO_PHYLOCK);
event = APE_EVENT_STATUS_STATE_START;
break;
case RESET_KIND_SHUTDOWN:
/* With the interface we are currently using,
* APE does not track driver state. Wiping
* out the HOST SEGMENT SIGNATURE forces
* the APE to assume OS absent status.
*/
tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG, 0x0);
event = APE_EVENT_STATUS_STATE_UNLOAD;
break;
case RESET_KIND_SUSPEND:
event = APE_EVENT_STATUS_STATE_SUSPEND;
break;
default:
return;
}
event |= APE_EVENT_STATUS_DRIVER_EVNT | APE_EVENT_STATUS_STATE_CHNGE;
tg3_ape_send_event(tp, event);
}
/* tp->lock is held. */
static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
{
tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX,
NIC_SRAM_FIRMWARE_MBOX_MAGIC1);
if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
switch (kind) {
case RESET_KIND_INIT:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_START);
break;
case RESET_KIND_SHUTDOWN:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_UNLOAD);
break;
case RESET_KIND_SUSPEND:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_SUSPEND);
break;
default:
break;
}
}
if (kind == RESET_KIND_INIT ||
kind == RESET_KIND_SUSPEND)
tg3_ape_driver_state_change(tp, kind);
}
/* tp->lock is held. */
static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
{
if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
switch (kind) {
case RESET_KIND_INIT:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_START_DONE);
break;
case RESET_KIND_SHUTDOWN:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_UNLOAD_DONE);
break;
default:
break;
}
}
if (kind == RESET_KIND_SHUTDOWN)
tg3_ape_driver_state_change(tp, kind);
}
/* tp->lock is held. */
static void tg3_write_sig_legacy(struct tg3 *tp, int kind)
{
if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
switch (kind) {
case RESET_KIND_INIT:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_START);
break;
case RESET_KIND_SHUTDOWN:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_UNLOAD);
break;
case RESET_KIND_SUSPEND:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_SUSPEND);
break;
default:
break;
}
}
}
static int tg3_poll_fw(struct tg3 *tp)
{
int i;
u32 val;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
/* Wait up to 20ms for init done. */
for (i = 0; i < 200; i++) {
if (tr32(VCPU_STATUS) & VCPU_STATUS_INIT_DONE)
return 0;
udelay(100);
}
return -ENODEV;
}
/* Wait for firmware initialization to complete. */
for (i = 0; i < 100000; i++) {
tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, &val);
if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
break;
udelay(10);
}
/* Chip might not be fitted with firmware. Some Sun onboard
* parts are configured like that. So don't signal the timeout
* of the above loop as an error, but do report the lack of
* running firmware once.
*/
if (i >= 100000 &&
!(tp->tg3_flags2 & TG3_FLG2_NO_FWARE_REPORTED)) {
tp->tg3_flags2 |= TG3_FLG2_NO_FWARE_REPORTED;
printk(KERN_INFO PFX "%s: No firmware running.\n",
tp->dev->name);
}
return 0;
}
/* Save PCI command register before chip reset */
static void tg3_save_pci_state(struct tg3 *tp)
{
pci_read_config_word(tp->pdev, PCI_COMMAND, &tp->pci_cmd);
}
/* Restore PCI state after chip reset */
static void tg3_restore_pci_state(struct tg3 *tp)
{
u32 val;
/* Re-enable indirect register accesses. */
pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
tp->misc_host_ctrl);
/* Set MAX PCI retry to zero. */
val = (PCISTATE_ROM_ENABLE | PCISTATE_ROM_RETRY_ENABLE);
if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
(tp->tg3_flags & TG3_FLAG_PCIX_MODE))
val |= PCISTATE_RETRY_SAME_DMA;
/* Allow reads and writes to the APE register and memory space. */
if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
PCISTATE_ALLOW_APE_SHMEM_WR;
pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, val);
pci_write_config_word(tp->pdev, PCI_COMMAND, tp->pci_cmd);
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785) {
if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
pcie_set_readrq(tp->pdev, 4096);
else {
pci_write_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
tp->pci_cacheline_sz);
pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
tp->pci_lat_timer);
}
}
/* Make sure PCI-X relaxed ordering bit is clear. */
if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
u16 pcix_cmd;
pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
&pcix_cmd);
pcix_cmd &= ~PCI_X_CMD_ERO;
pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
pcix_cmd);
}
if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
/* Chip reset on 5780 will reset MSI enable bit,
* so need to restore it.
*/
if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
u16 ctrl;
pci_read_config_word(tp->pdev,
tp->msi_cap + PCI_MSI_FLAGS,
&ctrl);
pci_write_config_word(tp->pdev,
tp->msi_cap + PCI_MSI_FLAGS,
ctrl | PCI_MSI_FLAGS_ENABLE);
val = tr32(MSGINT_MODE);
tw32(MSGINT_MODE, val | MSGINT_MODE_ENABLE);
}
}
}
static void tg3_stop_fw(struct tg3 *);
/* tp->lock is held. */
static int tg3_chip_reset(struct tg3 *tp)
{
u32 val;
void (*write_op)(struct tg3 *, u32, u32);
int err;
tg3_nvram_lock(tp);
tg3_mdio_stop(tp);
tg3_ape_lock(tp, TG3_APE_LOCK_GRC);
/* No matching tg3_nvram_unlock() after this because
* chip reset below will undo the nvram lock.
*/
tp->nvram_lock_cnt = 0;
/* GRC_MISC_CFG core clock reset will clear the memory
* enable bit in PCI register 4 and the MSI enable bit
* on some chips, so we save relevant registers here.
*/
tg3_save_pci_state(tp);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
(tp->tg3_flags3 & TG3_FLG3_5755_PLUS))
tw32(GRC_FASTBOOT_PC, 0);
/*
* We must avoid the readl() that normally takes place.
* It locks machines, causes machine checks, and other
* fun things. So, temporarily disable the 5701
* hardware workaround, while we do the reset.
*/
write_op = tp->write32;
if (write_op == tg3_write_flush_reg32)
tp->write32 = tg3_write32;
/* Prevent the irq handler from reading or writing PCI registers
* during chip reset when the memory enable bit in the PCI command
* register may be cleared. The chip does not generate interrupt
* at this time, but the irq handler may still be called due to irq
* sharing or irqpoll.
*/
tp->tg3_flags |= TG3_FLAG_CHIP_RESETTING;
if (tp->hw_status) {
tp->hw_status->status = 0;
tp->hw_status->status_tag = 0;
}
tp->last_tag = 0;
tp->last_irq_tag = 0;
smp_mb();
synchronize_irq(tp->pdev->irq);
/* do the reset */
val = GRC_MISC_CFG_CORECLK_RESET;
if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
if (tr32(0x7e2c) == 0x60) {
tw32(0x7e2c, 0x20);
}
if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
tw32(GRC_MISC_CFG, (1 << 29));
val |= (1 << 29);
}
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
tw32(VCPU_STATUS, tr32(VCPU_STATUS) | VCPU_STATUS_DRV_RESET);
tw32(GRC_VCPU_EXT_CTRL,
tr32(GRC_VCPU_EXT_CTRL) & ~GRC_VCPU_EXT_CTRL_HALT_CPU);
}
if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
val |= GRC_MISC_CFG_KEEP_GPHY_POWER;
tw32(GRC_MISC_CFG, val);
/* restore 5701 hardware bug workaround write method */
tp->write32 = write_op;
/* Unfortunately, we have to delay before the PCI read back.
* Some 575X chips even will not respond to a PCI cfg access
* when the reset command is given to the chip.
*
* How do these hardware designers expect things to work
* properly if the PCI write is posted for a long period
* of time? It is always necessary to have some method by
* which a register read back can occur to push the write
* out which does the reset.
*
* For most tg3 variants the trick below was working.
* Ho hum...
*/
udelay(120);
/* Flush PCI posted writes. The normal MMIO registers
* are inaccessible at this time so this is the only
* way to make this reliably (actually, this is no longer
* the case, see above). I tried to use indirect
* register read/write but this upset some 5701 variants.
*/
pci_read_config_dword(tp->pdev, PCI_COMMAND, &val);
udelay(120);
if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) && tp->pcie_cap) {
if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A0) {
int i;
u32 cfg_val;
/* Wait for link training to complete. */
for (i = 0; i < 5000; i++)
udelay(100);
pci_read_config_dword(tp->pdev, 0xc4, &cfg_val);
pci_write_config_dword(tp->pdev, 0xc4,
cfg_val | (1 << 15));
}
/* Set PCIE max payload size to 128 bytes and
* clear the "no snoop" and "relaxed ordering" bits.
*/
pci_write_config_word(tp->pdev,
tp->pcie_cap + PCI_EXP_DEVCTL,
0);
pcie_set_readrq(tp->pdev, 4096);
/* Clear error status */
pci_write_config_word(tp->pdev,
tp->pcie_cap + PCI_EXP_DEVSTA,
PCI_EXP_DEVSTA_CED |
PCI_EXP_DEVSTA_NFED |
PCI_EXP_DEVSTA_FED |
PCI_EXP_DEVSTA_URD);
}
tg3_restore_pci_state(tp);
tp->tg3_flags &= ~TG3_FLAG_CHIP_RESETTING;
val = 0;
if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
val = tr32(MEMARB_MODE);
tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A3) {
tg3_stop_fw(tp);
tw32(0x5000, 0x400);
}
tw32(GRC_MODE, tp->grc_mode);
if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0) {
val = tr32(0xc4);
tw32(0xc4, val | (1 << 15));
}
if ((tp->nic_sram_data_cfg & NIC_SRAM_DATA_CFG_MINI_PCI) != 0 &&
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
tp->pci_clock_ctrl |= CLOCK_CTRL_CLKRUN_OENABLE;
if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0)
tp->pci_clock_ctrl |= CLOCK_CTRL_FORCE_CLKRUN;
tw32(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
}
if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
tp->mac_mode = MAC_MODE_PORT_MODE_TBI;
tw32_f(MAC_MODE, tp->mac_mode);
} else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
tp->mac_mode = MAC_MODE_PORT_MODE_GMII;
tw32_f(MAC_MODE, tp->mac_mode);
} else if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
tp->mac_mode &= (MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
if (tp->mac_mode & MAC_MODE_APE_TX_EN)
tp->mac_mode |= MAC_MODE_TDE_ENABLE;
tw32_f(MAC_MODE, tp->mac_mode);
} else
tw32_f(MAC_MODE, 0);
udelay(40);
tg3_mdio_start(tp);
tg3_ape_unlock(tp, TG3_APE_LOCK_GRC);
err = tg3_poll_fw(tp);
if (err)
return err;
if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
val = tr32(0x7c00);
tw32(0x7c00, val | (1 << 25));
}
/* Reprobe ASF enable state. */
tp->tg3_flags &= ~TG3_FLAG_ENABLE_ASF;
tp->tg3_flags2 &= ~TG3_FLG2_ASF_NEW_HANDSHAKE;
tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
if (val == NIC_SRAM_DATA_SIG_MAGIC) {
u32 nic_cfg;
tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
tp->last_event_jiffies = jiffies;
if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
}
}
return 0;
}
/* tp->lock is held. */
static void tg3_stop_fw(struct tg3 *tp)
{
if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
/* Wait for RX cpu to ACK the previous event. */
tg3_wait_for_event_ack(tp);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_PAUSE_FW);
tg3_generate_fw_event(tp);
/* Wait for RX cpu to ACK this event. */
tg3_wait_for_event_ack(tp);
}
}
/* tp->lock is held. */
static int tg3_halt(struct tg3 *tp, int kind, int silent)
{
int err;
tg3_stop_fw(tp);
tg3_write_sig_pre_reset(tp, kind);
tg3_abort_hw(tp, silent);
err = tg3_chip_reset(tp);
__tg3_set_mac_addr(tp, 0);
tg3_write_sig_legacy(tp, kind);
tg3_write_sig_post_reset(tp, kind);
if (err)
return err;
return 0;
}
#define RX_CPU_SCRATCH_BASE 0x30000
#define RX_CPU_SCRATCH_SIZE 0x04000
#define TX_CPU_SCRATCH_BASE 0x34000
#define TX_CPU_SCRATCH_SIZE 0x04000
/* tp->lock is held. */
static int tg3_halt_cpu(struct tg3 *tp, u32 offset)
{
int i;
BUG_ON(offset == TX_CPU_BASE &&
(tp->tg3_flags2 & TG3_FLG2_5705_PLUS));
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
u32 val = tr32(GRC_VCPU_EXT_CTRL);
tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_HALT_CPU);
return 0;
}
if (offset == RX_CPU_BASE) {
for (i = 0; i < 10000; i++) {
tw32(offset + CPU_STATE, 0xffffffff);
tw32(offset + CPU_MODE, CPU_MODE_HALT);
if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
break;
}
tw32(offset + CPU_STATE, 0xffffffff);
tw32_f(offset + CPU_MODE, CPU_MODE_HALT);
udelay(10);
} else {
for (i = 0; i < 10000; i++) {
tw32(offset + CPU_STATE, 0xffffffff);
tw32(offset + CPU_MODE, CPU_MODE_HALT);
if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
break;
}
}
if (i >= 10000) {
printk(KERN_ERR PFX "tg3_reset_cpu timed out for %s, "
"and %s CPU\n",
tp->dev->name,
(offset == RX_CPU_BASE ? "RX" : "TX"));
return -ENODEV;
}
/* Clear firmware's nvram arbitration. */
if (tp->tg3_flags & TG3_FLAG_NVRAM)
tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
return 0;
}
struct fw_info {
unsigned int fw_base;
unsigned int fw_len;
const __be32 *fw_data;
};
/* tp->lock is held. */
static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_base,
int cpu_scratch_size, struct fw_info *info)
{
int err, lock_err, i;
void (*write_op)(struct tg3 *, u32, u32);
if (cpu_base == TX_CPU_BASE &&
(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
printk(KERN_ERR PFX "tg3_load_firmware_cpu: Trying to load "
"TX cpu firmware on %s which is 5705.\n",
tp->dev->name);
return -EINVAL;
}
if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
write_op = tg3_write_mem;
else
write_op = tg3_write_indirect_reg32;
/* It is possible that bootcode is still loading at this point.
* Get the nvram lock first before halting the cpu.
*/
lock_err = tg3_nvram_lock(tp);
err = tg3_halt_cpu(tp, cpu_base);
if (!lock_err)
tg3_nvram_unlock(tp);
if (err)
goto out;
for (i = 0; i < cpu_scratch_size; i += sizeof(u32))
write_op(tp, cpu_scratch_base + i, 0);
tw32(cpu_base + CPU_STATE, 0xffffffff);
tw32(cpu_base + CPU_MODE, tr32(cpu_base+CPU_MODE)|CPU_MODE_HALT);
for (i = 0; i < (info->fw_len / sizeof(u32)); i++)
write_op(tp, (cpu_scratch_base +
(info->fw_base & 0xffff) +
(i * sizeof(u32))),
be32_to_cpu(info->fw_data[i]));
err = 0;
out:
return err;
}
/* tp->lock is held. */
static int tg3_load_5701_a0_firmware_fix(struct tg3 *tp)
{
struct fw_info info;
const __be32 *fw_data;
int err, i;
fw_data = (void *)tp->fw->data;
/* Firmware blob starts with version numbers, followed by
start address and length. We are setting complete length.
length = end_address_of_bss - start_address_of_text.
Remainder is the blob to be loaded contiguously
from start address. */
info.fw_base = be32_to_cpu(fw_data[1]);
info.fw_len = tp->fw->size - 12;
info.fw_data = &fw_data[3];
err = tg3_load_firmware_cpu(tp, RX_CPU_BASE,
RX_CPU_SCRATCH_BASE, RX_CPU_SCRATCH_SIZE,
&info);
if (err)
return err;
err = tg3_load_firmware_cpu(tp, TX_CPU_BASE,
TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE,
&info);
if (err)
return err;
/* Now startup only the RX cpu. */
tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
for (i = 0; i < 5; i++) {
if (tr32(RX_CPU_BASE + CPU_PC) == info.fw_base)
break;
tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
tw32(RX_CPU_BASE + CPU_MODE, CPU_MODE_HALT);
tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
udelay(1000);
}
if (i >= 5) {
printk(KERN_ERR PFX "tg3_load_firmware fails for %s "
"to set RX CPU PC, is %08x should be %08x\n",
tp->dev->name, tr32(RX_CPU_BASE + CPU_PC),
info.fw_base);
return -ENODEV;
}
tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
tw32_f(RX_CPU_BASE + CPU_MODE, 0x00000000);
return 0;
}
/* 5705 needs a special version of the TSO firmware. */
/* tp->lock is held. */
static int tg3_load_tso_firmware(struct tg3 *tp)
{
struct fw_info info;
const __be32 *fw_data;
unsigned long cpu_base, cpu_scratch_base, cpu_scratch_size;
int err, i;
if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
return 0;
fw_data = (void *)tp->fw->data;
/* Firmware blob starts with version numbers, followed by
start address and length. We are setting complete length.
length = end_address_of_bss - start_address_of_text.
Remainder is the blob to be loaded contiguously
from start address. */
info.fw_base = be32_to_cpu(fw_data[1]);
cpu_scratch_size = tp->fw_len;
info.fw_len = tp->fw->size - 12;
info.fw_data = &fw_data[3];
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
cpu_base = RX_CPU_BASE;
cpu_scratch_base = NIC_SRAM_MBUF_POOL_BASE5705;
} else {
cpu_base = TX_CPU_BASE;
cpu_scratch_base = TX_CPU_SCRATCH_BASE;
cpu_scratch_size = TX_CPU_SCRATCH_SIZE;
}
err = tg3_load_firmware_cpu(tp, cpu_base,
cpu_scratch_base, cpu_scratch_size,
&info);
if (err)
return err;
/* Now startup the cpu. */
tw32(cpu_base + CPU_STATE, 0xffffffff);
tw32_f(cpu_base + CPU_PC, info.fw_base);
for (i = 0; i < 5; i++) {
if (tr32(cpu_base + CPU_PC) == info.fw_base)
break;
tw32(cpu_base + CPU_STATE, 0xffffffff);
tw32(cpu_base + CPU_MODE, CPU_MODE_HALT);
tw32_f(cpu_base + CPU_PC, info.fw_base);
udelay(1000);
}
if (i >= 5) {
printk(KERN_ERR PFX "tg3_load_tso_firmware fails for %s "
"to set CPU PC, is %08x should be %08x\n",
tp->dev->name, tr32(cpu_base + CPU_PC),
info.fw_base);
return -ENODEV;
}
tw32(cpu_base + CPU_STATE, 0xffffffff);
tw32_f(cpu_base + CPU_MODE, 0x00000000);
return 0;
}
static int tg3_set_mac_addr(struct net_device *dev, void *p)
{
struct tg3 *tp = netdev_priv(dev);
struct sockaddr *addr = p;
int err = 0, skip_mac_1 = 0;
if (!is_valid_ether_addr(addr->sa_data))
return -EINVAL;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
if (!netif_running(dev))
return 0;
if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
u32 addr0_high, addr0_low, addr1_high, addr1_low;
addr0_high = tr32(MAC_ADDR_0_HIGH);
addr0_low = tr32(MAC_ADDR_0_LOW);
addr1_high = tr32(MAC_ADDR_1_HIGH);
addr1_low = tr32(MAC_ADDR_1_LOW);
/* Skip MAC addr 1 if ASF is using it. */
if ((addr0_high != addr1_high || addr0_low != addr1_low) &&
!(addr1_high == 0 && addr1_low == 0))
skip_mac_1 = 1;
}
spin_lock_bh(&tp->lock);
__tg3_set_mac_addr(tp, skip_mac_1);
spin_unlock_bh(&tp->lock);
return err;
}
/* tp->lock is held. */
static void tg3_set_bdinfo(struct tg3 *tp, u32 bdinfo_addr,
dma_addr_t mapping, u32 maxlen_flags,
u32 nic_addr)
{
tg3_write_mem(tp,
(bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH),
((u64) mapping >> 32));
tg3_write_mem(tp,
(bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW),
((u64) mapping & 0xffffffff));
tg3_write_mem(tp,
(bdinfo_addr + TG3_BDINFO_MAXLEN_FLAGS),
maxlen_flags);
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
tg3_write_mem(tp,
(bdinfo_addr + TG3_BDINFO_NIC_ADDR),
nic_addr);
}
static void __tg3_set_rx_mode(struct net_device *);
static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
{
tw32(HOSTCC_RXCOL_TICKS, ec->rx_coalesce_usecs);
tw32(HOSTCC_TXCOL_TICKS, ec->tx_coalesce_usecs);
tw32(HOSTCC_RXMAX_FRAMES, ec->rx_max_coalesced_frames);
tw32(HOSTCC_TXMAX_FRAMES, ec->tx_max_coalesced_frames);
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
}
tw32(HOSTCC_RXCOAL_MAXF_INT, ec->rx_max_coalesced_frames_irq);
tw32(HOSTCC_TXCOAL_MAXF_INT, ec->tx_max_coalesced_frames_irq);
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
u32 val = ec->stats_block_coalesce_usecs;
if (!netif_carrier_ok(tp->dev))
val = 0;
tw32(HOSTCC_STAT_COAL_TICKS, val);
}
}
/* tp->lock is held. */
static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
{
u32 val, rdmac_mode;
int i, err, limit;
tg3_disable_ints(tp);
tg3_stop_fw(tp);
tg3_write_sig_pre_reset(tp, RESET_KIND_INIT);
if (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE) {
tg3_abort_hw(tp, 1);
}
if (reset_phy &&
!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB))
tg3_phy_reset(tp);
err = tg3_chip_reset(tp);
if (err)
return err;
tg3_write_sig_legacy(tp, RESET_KIND_INIT);
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
val = tr32(TG3_CPMU_CTRL);
val &= ~(CPMU_CTRL_LINK_AWARE_MODE | CPMU_CTRL_LINK_IDLE_MODE);
tw32(TG3_CPMU_CTRL, val);
val = tr32(TG3_CPMU_LSPD_10MB_CLK);
val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
val |= CPMU_LSPD_10MB_MACCLK_6_25;
tw32(TG3_CPMU_LSPD_10MB_CLK, val);
val = tr32(TG3_CPMU_LNK_AWARE_PWRMD);
val &= ~CPMU_LNK_AWARE_MACCLK_MASK;
val |= CPMU_LNK_AWARE_MACCLK_6_25;
tw32(TG3_CPMU_LNK_AWARE_PWRMD, val);
val = tr32(TG3_CPMU_HST_ACC);
val &= ~CPMU_HST_ACC_MACCLK_MASK;
val |= CPMU_HST_ACC_MACCLK_6_25;
tw32(TG3_CPMU_HST_ACC, val);
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
val = tr32(PCIE_PWR_MGMT_THRESH) & ~PCIE_PWR_MGMT_L1_THRESH_MSK;
val |= PCIE_PWR_MGMT_EXT_ASPM_TMR_EN |
PCIE_PWR_MGMT_L1_THRESH_4MS;
tw32(PCIE_PWR_MGMT_THRESH, val);
}
/* This works around an issue with Athlon chipsets on
* B3 tigon3 silicon. This bit has no effect on any
* other revision. But do not set this on PCI Express
* chips and don't even touch the clocks if the CPMU is present.
*/
if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)) {
if (!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
tp->pci_clock_ctrl |= CLOCK_CTRL_DELAY_PCI_GRANT;
tw32_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
}
if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
(tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
val = tr32(TG3PCI_PCISTATE);
val |= PCISTATE_RETRY_SAME_DMA;
tw32(TG3PCI_PCISTATE, val);
}
if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
/* Allow reads and writes to the
* APE register and memory space.
*/
val = tr32(TG3PCI_PCISTATE);
val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
PCISTATE_ALLOW_APE_SHMEM_WR;
tw32(TG3PCI_PCISTATE, val);
}
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_BX) {
/* Enable some hw fixes. */
val = tr32(TG3PCI_MSI_DATA);
val |= (1 << 26) | (1 << 28) | (1 << 29);
tw32(TG3PCI_MSI_DATA, val);
}
/* Descriptor ring init may make accesses to the
* NIC SRAM area to setup the TX descriptors, so we
* can only do this after the hardware has been
* successfully reset.
*/
err = tg3_init_rings(tp);
if (err)
return err;
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761) {
/* This value is determined during the probe time DMA
* engine test, tg3_test_dma.
*/
tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
}
tp->grc_mode &= ~(GRC_MODE_HOST_SENDBDS |
GRC_MODE_4X_NIC_SEND_RINGS |
GRC_MODE_NO_TX_PHDR_CSUM |
GRC_MODE_NO_RX_PHDR_CSUM);
tp->grc_mode |= GRC_MODE_HOST_SENDBDS;
/* Pseudo-header checksum is done by hardware logic and not
* the offload processers, so make the chip do the pseudo-
* header checksums on receive. For transmit it is more
* convenient to do the pseudo-header checksum in software
* as Linux does that on transmit for us in all cases.
*/
tp->grc_mode |= GRC_MODE_NO_TX_PHDR_CSUM;
tw32(GRC_MODE,
tp->grc_mode |
(GRC_MODE_IRQ_ON_MAC_ATTN | GRC_MODE_HOST_STACKUP));
/* Setup the timer prescalar register. Clock is always 66Mhz. */
val = tr32(GRC_MISC_CFG);
val &= ~0xff;
val |= (65 << GRC_MISC_CFG_PRESCALAR_SHIFT);
tw32(GRC_MISC_CFG, val);
/* Initialize MBUF/DESC pool. */
if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
/* Do nothing. */
} else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5705) {
tw32(BUFMGR_MB_POOL_ADDR, NIC_SRAM_MBUF_POOL_BASE);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE64);
else
tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE96);
tw32(BUFMGR_DMA_DESC_POOL_ADDR, NIC_SRAM_DMA_DESC_POOL_BASE);
tw32(BUFMGR_DMA_DESC_POOL_SIZE, NIC_SRAM_DMA_DESC_POOL_SIZE);
}
else if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
int fw_len;
fw_len = tp->fw_len;
fw_len = (fw_len + (0x80 - 1)) & ~(0x80 - 1);
tw32(BUFMGR_MB_POOL_ADDR,
NIC_SRAM_MBUF_POOL_BASE5705 + fw_len);
tw32(BUFMGR_MB_POOL_SIZE,
NIC_SRAM_MBUF_POOL_SIZE5705 - fw_len - 0xa00);
}
if (tp->dev->mtu <= ETH_DATA_LEN) {
tw32(BUFMGR_MB_RDMA_LOW_WATER,
tp->bufmgr_config.mbuf_read_dma_low_water);
tw32(BUFMGR_MB_MACRX_LOW_WATER,
tp->bufmgr_config.mbuf_mac_rx_low_water);
tw32(BUFMGR_MB_HIGH_WATER,
tp->bufmgr_config.mbuf_high_water);
} else {
tw32(BUFMGR_MB_RDMA_LOW_WATER,
tp->bufmgr_config.mbuf_read_dma_low_water_jumbo);
tw32(BUFMGR_MB_MACRX_LOW_WATER,
tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo);
tw32(BUFMGR_MB_HIGH_WATER,
tp->bufmgr_config.mbuf_high_water_jumbo);
}
tw32(BUFMGR_DMA_LOW_WATER,
tp->bufmgr_config.dma_low_water);
tw32(BUFMGR_DMA_HIGH_WATER,
tp->bufmgr_config.dma_high_water);
tw32(BUFMGR_MODE, BUFMGR_MODE_ENABLE | BUFMGR_MODE_ATTN_ENABLE);
for (i = 0; i < 2000; i++) {
if (tr32(BUFMGR_MODE) & BUFMGR_MODE_ENABLE)
break;
udelay(10);
}
if (i >= 2000) {
printk(KERN_ERR PFX "tg3_reset_hw cannot enable BUFMGR for %s.\n",
tp->dev->name);
return -ENODEV;
}
/* Setup replenish threshold. */
val = tp->rx_pending / 8;
if (val == 0)
val = 1;
else if (val > tp->rx_std_max_post)
val = tp->rx_std_max_post;
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
if (tp->pci_chip_rev_id == CHIPREV_ID_5906_A1)
tw32(ISO_PKT_TX, (tr32(ISO_PKT_TX) & ~0x3) | 0x2);
if (val > (TG3_RX_INTERNAL_RING_SZ_5906 / 2))
val = TG3_RX_INTERNAL_RING_SZ_5906 / 2;
}
tw32(RCVBDI_STD_THRESH, val);
/* Initialize TG3_BDINFO's at:
* RCVDBDI_STD_BD: standard eth size rx ring
* RCVDBDI_JUMBO_BD: jumbo frame rx ring
* RCVDBDI_MINI_BD: small frame rx ring (??? does not work)
*
* like so:
* TG3_BDINFO_HOST_ADDR: high/low parts of DMA address of ring
* TG3_BDINFO_MAXLEN_FLAGS: (rx max buffer size << 16) |
* ring attribute flags
* TG3_BDINFO_NIC_ADDR: location of descriptors in nic SRAM
*
* Standard receive ring @ NIC_SRAM_RX_BUFFER_DESC, 512 entries.
* Jumbo receive ring @ NIC_SRAM_RX_JUMBO_BUFFER_DESC, 256 entries.
*
* The size of each ring is fixed in the firmware, but the location is
* configurable.
*/
tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
((u64) tp->rx_std_mapping >> 32));
tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
((u64) tp->rx_std_mapping & 0xffffffff));
tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR,
NIC_SRAM_RX_BUFFER_DESC);
/* Don't even try to program the JUMBO/MINI buffer descriptor
* configs on 5705.
*/
if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS,
RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT);
} else {
tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS,
RX_STD_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT);
tw32(RCVDBDI_MINI_BD + TG3_BDINFO_MAXLEN_FLAGS,
BDINFO_FLAGS_DISABLED);
/* Setup replenish threshold. */
tw32(RCVBDI_JUMBO_THRESH, tp->rx_jumbo_pending / 8);
if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
((u64) tp->rx_jumbo_mapping >> 32));
tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
((u64) tp->rx_jumbo_mapping & 0xffffffff));
tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
RX_JUMBO_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT);
tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_NIC_ADDR,
NIC_SRAM_RX_JUMBO_BUFFER_DESC);
} else {
tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
BDINFO_FLAGS_DISABLED);
}
}
/* There is only one send ring on 5705/5750, no need to explicitly
* disable the others.
*/
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
/* Clear out send RCB ring in SRAM. */
for (i = NIC_SRAM_SEND_RCB; i < NIC_SRAM_RCV_RET_RCB; i += TG3_BDINFO_SIZE)
tg3_write_mem(tp, i + TG3_BDINFO_MAXLEN_FLAGS,
BDINFO_FLAGS_DISABLED);
}
tp->tx_prod = 0;
tp->tx_cons = 0;
tw32_mailbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW, 0);
tw32_tx_mbox(MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW, 0);
tg3_set_bdinfo(tp, NIC_SRAM_SEND_RCB,
tp->tx_desc_mapping,
(TG3_TX_RING_SIZE <<
BDINFO_FLAGS_MAXLEN_SHIFT),
NIC_SRAM_TX_BUFFER_DESC);
/* There is only one receive return ring on 5705/5750, no need
* to explicitly disable the others.
*/
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
for (i = NIC_SRAM_RCV_RET_RCB; i < NIC_SRAM_STATS_BLK;
i += TG3_BDINFO_SIZE) {
tg3_write_mem(tp, i + TG3_BDINFO_MAXLEN_FLAGS,
BDINFO_FLAGS_DISABLED);
}
}
tp->rx_rcb_ptr = 0;
tw32_rx_mbox(MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW, 0);
tg3_set_bdinfo(tp, NIC_SRAM_RCV_RET_RCB,
tp->rx_rcb_mapping,
(TG3_RX_RCB_RING_SIZE(tp) <<
BDINFO_FLAGS_MAXLEN_SHIFT),
0);
tp->rx_std_ptr = tp->rx_pending;
tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW,
tp->rx_std_ptr);
tp->rx_jumbo_ptr = (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) ?
tp->rx_jumbo_pending : 0;
tw32_rx_mbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW,
tp->rx_jumbo_ptr);
/* Initialize MAC address and backoff seed. */
__tg3_set_mac_addr(tp, 0);
/* MTU + ethernet header + FCS + optional VLAN tag */
tw32(MAC_RX_MTU_SIZE,
tp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
/* The slot time is changed by tg3_setup_phy if we
* run at gigabit with half duplex.
*/
tw32(MAC_TX_LENGTHS,
(2 << TX_LENGTHS_IPG_CRS_SHIFT) |
(6 << TX_LENGTHS_IPG_SHIFT) |
(32 << TX_LENGTHS_SLOT_TIME_SHIFT));
/* Receive rules. */
tw32(MAC_RCV_RULE_CFG, RCV_RULE_CFG_DEFAULT_CLASS);
tw32(RCVLPC_CONFIG, 0x0181);
/* Calculate RDMAC_MODE setting early, we need it to determine
* the RCVLPC_STATE_ENABLE mask.
*/
rdmac_mode = (RDMAC_MODE_ENABLE | RDMAC_MODE_TGTABORT_ENAB |
RDMAC_MODE_MSTABORT_ENAB | RDMAC_MODE_PARITYERR_ENAB |
RDMAC_MODE_ADDROFLOW_ENAB | RDMAC_MODE_FIFOOFLOW_ENAB |
RDMAC_MODE_FIFOURUN_ENAB | RDMAC_MODE_FIFOOREAD_ENAB |
RDMAC_MODE_LNGREAD_ENAB);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
rdmac_mode |= RDMAC_MODE_BD_SBD_CRPT_ENAB |
RDMAC_MODE_MBUF_RBD_CRPT_ENAB |
RDMAC_MODE_MBUF_SBD_CRPT_ENAB;
/* If statement applies to 5705 and 5750 PCI devices only */
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)) {
if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE &&
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
rdmac_mode |= RDMAC_MODE_FIFO_SIZE_128;
} else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
!(tp->tg3_flags2 & TG3_FLG2_IS_5788)) {
rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
}
}
if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
rdmac_mode |= RDMAC_MODE_IPV4_LSO_EN;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
rdmac_mode |= RDMAC_MODE_IPV6_LSO_EN;
/* Receive/send statistics. */
if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
val = tr32(RCVLPC_STATS_ENABLE);
val &= ~RCVLPC_STATSENAB_DACK_FIX;
tw32(RCVLPC_STATS_ENABLE, val);
} else if ((rdmac_mode & RDMAC_MODE_FIFO_SIZE_128) &&
(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
val = tr32(RCVLPC_STATS_ENABLE);
val &= ~RCVLPC_STATSENAB_LNGBRST_RFIX;
tw32(RCVLPC_STATS_ENABLE, val);
} else {
tw32(RCVLPC_STATS_ENABLE, 0xffffff);
}
tw32(RCVLPC_STATSCTRL, RCVLPC_STATSCTRL_ENABLE);
tw32(SNDDATAI_STATSENAB, 0xffffff);
tw32(SNDDATAI_STATSCTRL,
(SNDDATAI_SCTRL_ENABLE |
SNDDATAI_SCTRL_FASTUPD));
/* Setup host coalescing engine. */
tw32(HOSTCC_MODE, 0);
for (i = 0; i < 2000; i++) {
if (!(tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE))
break;
udelay(10);
}
__tg3_set_coalesce(tp, &tp->coal);
/* set status block DMA address */
tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
((u64) tp->status_mapping >> 32));
tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
((u64) tp->status_mapping & 0xffffffff));
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
/* Status/statistics block address. See tg3_timer,
* the tg3_periodic_fetch_stats call there, and
* tg3_get_stats to see how this works for 5705/5750 chips.
*/
tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
((u64) tp->stats_mapping >> 32));
tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
((u64) tp->stats_mapping & 0xffffffff));
tw32(HOSTCC_STATS_BLK_NIC_ADDR, NIC_SRAM_STATS_BLK);
tw32(HOSTCC_STATUS_BLK_NIC_ADDR, NIC_SRAM_STATUS_BLK);
}
tw32(HOSTCC_MODE, HOSTCC_MODE_ENABLE | tp->coalesce_mode);
tw32(RCVCC_MODE, RCVCC_MODE_ENABLE | RCVCC_MODE_ATTN_ENABLE);
tw32(RCVLPC_MODE, RCVLPC_MODE_ENABLE);
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
tw32(RCVLSC_MODE, RCVLSC_MODE_ENABLE | RCVLSC_MODE_ATTN_ENABLE);
/* Clear statistics/status block in chip, and status block in ram. */
for (i = NIC_SRAM_STATS_BLK;
i < NIC_SRAM_STATUS_BLK + TG3_HW_STATUS_SIZE;
i += sizeof(u32)) {
tg3_write_mem(tp, i, 0);
udelay(40);
}
memset(tp->hw_status, 0, TG3_HW_STATUS_SIZE);
if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
/* reset to prevent losing 1st rx packet intermittently */
tw32_f(MAC_RX_MODE, RX_MODE_RESET);
udelay(10);
}
if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
tp->mac_mode &= MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
else
tp->mac_mode = 0;
tp->mac_mode |= MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE |
MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE | MAC_MODE_FHDE_ENABLE;
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700)
tp->mac_mode |= MAC_MODE_LINK_POLARITY;
tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_RXSTAT_CLEAR | MAC_MODE_TXSTAT_CLEAR);
udelay(40);
/* tp->grc_local_ctrl is partially set up during tg3_get_invariants().
* If TG3_FLG2_IS_NIC is zero, we should read the
* register to preserve the GPIO settings for LOMs. The GPIOs,
* whether used as inputs or outputs, are set by boot code after
* reset.
*/
if (!(tp->tg3_flags2 & TG3_FLG2_IS_NIC)) {
u32 gpio_mask;
gpio_mask = GRC_LCLCTRL_GPIO_OE0 | GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OE2 | GRC_LCLCTRL_GPIO_OUTPUT0 |
GRC_LCLCTRL_GPIO_OUTPUT1 | GRC_LCLCTRL_GPIO_OUTPUT2;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
gpio_mask |= GRC_LCLCTRL_GPIO_OE3 |
GRC_LCLCTRL_GPIO_OUTPUT3;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
gpio_mask |= GRC_LCLCTRL_GPIO_UART_SEL;
tp->grc_local_ctrl &= ~gpio_mask;
tp->grc_local_ctrl |= tr32(GRC_LOCAL_CTRL) & gpio_mask;
/* GPIO1 must be driven high for eeprom write protect */
if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT)
tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OUTPUT1);
}
tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
udelay(100);
tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0);
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
tw32_f(DMAC_MODE, DMAC_MODE_ENABLE);
udelay(40);
}
val = (WDMAC_MODE_ENABLE | WDMAC_MODE_TGTABORT_ENAB |
WDMAC_MODE_MSTABORT_ENAB | WDMAC_MODE_PARITYERR_ENAB |
WDMAC_MODE_ADDROFLOW_ENAB | WDMAC_MODE_FIFOOFLOW_ENAB |
WDMAC_MODE_FIFOURUN_ENAB | WDMAC_MODE_FIFOOREAD_ENAB |
WDMAC_MODE_LNGREAD_ENAB);
/* If statement applies to 5705 and 5750 PCI devices only */
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) {
if ((tp->tg3_flags & TG3_FLG2_TSO_CAPABLE) &&
(tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 ||
tp->pci_chip_rev_id == CHIPREV_ID_5705_A2)) {
/* nothing */
} else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
!(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
val |= WDMAC_MODE_RX_ACCEL;
}
}
/* Enable host coalescing bug fix */
if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
val |= WDMAC_MODE_STATUS_TAG_FIX;
tw32_f(WDMAC_MODE, val);
udelay(40);
if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
u16 pcix_cmd;
pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
&pcix_cmd);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703) {
pcix_cmd &= ~PCI_X_CMD_MAX_READ;
pcix_cmd |= PCI_X_CMD_READ_2K;
} else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
pcix_cmd &= ~(PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ);
pcix_cmd |= PCI_X_CMD_READ_2K;
}
pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
pcix_cmd);
}
tw32_f(RDMAC_MODE, rdmac_mode);
udelay(40);
tw32(RCVDCC_MODE, RCVDCC_MODE_ENABLE | RCVDCC_MODE_ATTN_ENABLE);
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
tw32(MBFREE_MODE, MBFREE_MODE_ENABLE);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
tw32(SNDDATAC_MODE,
SNDDATAC_MODE_ENABLE | SNDDATAC_MODE_CDELAY);
else
tw32(SNDDATAC_MODE, SNDDATAC_MODE_ENABLE);
tw32(SNDBDC_MODE, SNDBDC_MODE_ENABLE | SNDBDC_MODE_ATTN_ENABLE);
tw32(RCVBDI_MODE, RCVBDI_MODE_ENABLE | RCVBDI_MODE_RCB_ATTN_ENAB);
tw32(RCVDBDI_MODE, RCVDBDI_MODE_ENABLE | RCVDBDI_MODE_INV_RING_SZ);
tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE);
if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE | 0x8);
tw32(SNDBDI_MODE, SNDBDI_MODE_ENABLE | SNDBDI_MODE_ATTN_ENABLE);
tw32(SNDBDS_MODE, SNDBDS_MODE_ENABLE | SNDBDS_MODE_ATTN_ENABLE);
if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
err = tg3_load_5701_a0_firmware_fix(tp);
if (err)
return err;
}
if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
err = tg3_load_tso_firmware(tp);
if (err)
return err;
}
tp->tx_mode = TX_MODE_ENABLE;
tw32_f(MAC_TX_MODE, tp->tx_mode);
udelay(100);
tp->rx_mode = RX_MODE_ENABLE;
if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
tp->rx_mode |= RX_MODE_IPV6_CSUM_ENABLE;
tw32_f(MAC_RX_MODE, tp->rx_mode);
udelay(10);
tw32(MAC_LED_CTRL, tp->led_ctrl);
tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
tw32_f(MAC_RX_MODE, RX_MODE_RESET);
udelay(10);
}
tw32_f(MAC_RX_MODE, tp->rx_mode);
udelay(10);
if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) &&
!(tp->tg3_flags2 & TG3_FLG2_SERDES_PREEMPHASIS)) {
/* Set drive transmission level to 1.2V */
/* only if the signal pre-emphasis bit is not set */
val = tr32(MAC_SERDES_CFG);
val &= 0xfffff000;
val |= 0x880;
tw32(MAC_SERDES_CFG, val);
}
if (tp->pci_chip_rev_id == CHIPREV_ID_5703_A1)
tw32(MAC_SERDES_CFG, 0x616000);
}
/* Prevent chip from dropping frames when flow control
* is enabled.
*/
tw32_f(MAC_LOW_WMARK_MAX_RX_FRAME, 2);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 &&
(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
/* Use hardware link auto-negotiation */
tp->tg3_flags2 |= TG3_FLG2_HW_AUTONEG;
}
if ((tp->tg3_flags2 & TG3_FLG2_MII_SERDES) &&
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714)) {
u32 tmp;
tmp = tr32(SERDES_RX_CTRL);
tw32(SERDES_RX_CTRL, tmp | SERDES_RX_SIG_DETECT);
tp->grc_local_ctrl &= ~GRC_LCLCTRL_USE_EXT_SIG_DETECT;
tp->grc_local_ctrl |= GRC_LCLCTRL_USE_SIG_DETECT;
tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
}
if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
if (tp->link_config.phy_is_low_power) {
tp->link_config.phy_is_low_power = 0;
tp->link_config.speed = tp->link_config.orig_speed;
tp->link_config.duplex = tp->link_config.orig_duplex;
tp->link_config.autoneg = tp->link_config.orig_autoneg;
}
err = tg3_setup_phy(tp, 0);
if (err)
return err;
if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5906) {
u32 tmp;
/* Clear CRC stats. */
if (!tg3_readphy(tp, MII_TG3_TEST1, &tmp)) {
tg3_writephy(tp, MII_TG3_TEST1,
tmp | MII_TG3_TEST1_CRC_EN);
tg3_readphy(tp, 0x14, &tmp);
}
}
}
__tg3_set_rx_mode(tp->dev);
/* Initialize receive rules. */
tw32(MAC_RCV_RULE_0, 0xc2000000 & RCV_RULE_DISABLE_MASK);
tw32(MAC_RCV_VALUE_0, 0xffffffff & RCV_RULE_DISABLE_MASK);
tw32(MAC_RCV_RULE_1, 0x86000004 & RCV_RULE_DISABLE_MASK);
tw32(MAC_RCV_VALUE_1, 0xffffffff & RCV_RULE_DISABLE_MASK);
if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
limit = 8;
else
limit = 16;
if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
limit -= 4;
switch (limit) {
case 16:
tw32(MAC_RCV_RULE_15, 0); tw32(MAC_RCV_VALUE_15, 0);
case 15:
tw32(MAC_RCV_RULE_14, 0); tw32(MAC_RCV_VALUE_14, 0);
case 14:
tw32(MAC_RCV_RULE_13, 0); tw32(MAC_RCV_VALUE_13, 0);
case 13:
tw32(MAC_RCV_RULE_12, 0); tw32(MAC_RCV_VALUE_12, 0);
case 12:
tw32(MAC_RCV_RULE_11, 0); tw32(MAC_RCV_VALUE_11, 0);
case 11:
tw32(MAC_RCV_RULE_10, 0); tw32(MAC_RCV_VALUE_10, 0);
case 10:
tw32(MAC_RCV_RULE_9, 0); tw32(MAC_RCV_VALUE_9, 0);
case 9:
tw32(MAC_RCV_RULE_8, 0); tw32(MAC_RCV_VALUE_8, 0);
case 8:
tw32(MAC_RCV_RULE_7, 0); tw32(MAC_RCV_VALUE_7, 0);
case 7:
tw32(MAC_RCV_RULE_6, 0); tw32(MAC_RCV_VALUE_6, 0);
case 6:
tw32(MAC_RCV_RULE_5, 0); tw32(MAC_RCV_VALUE_5, 0);
case 5:
tw32(MAC_RCV_RULE_4, 0); tw32(MAC_RCV_VALUE_4, 0);
case 4:
/* tw32(MAC_RCV_RULE_3, 0); tw32(MAC_RCV_VALUE_3, 0); */
case 3:
/* tw32(MAC_RCV_RULE_2, 0); tw32(MAC_RCV_VALUE_2, 0); */
case 2:
case 1:
default:
break;
}
if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
/* Write our heartbeat update interval to APE. */
tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_INT_MS,
APE_HOST_HEARTBEAT_INT_DISABLE);
tg3_write_sig_post_reset(tp, RESET_KIND_INIT);
return 0;
}
/* Called at device open time to get the chip ready for
* packet processing. Invoked with tp->lock held.
*/
static int tg3_init_hw(struct tg3 *tp, int reset_phy)
{
tg3_switch_clocks(tp);
tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
return tg3_reset_hw(tp, reset_phy);
}
#define TG3_STAT_ADD32(PSTAT, REG) \
do { u32 __val = tr32(REG); \
(PSTAT)->low += __val; \
if ((PSTAT)->low < __val) \
(PSTAT)->high += 1; \
} while (0)
static void tg3_periodic_fetch_stats(struct tg3 *tp)
{
struct tg3_hw_stats *sp = tp->hw_stats;
if (!netif_carrier_ok(tp->dev))
return;
TG3_STAT_ADD32(&sp->tx_octets, MAC_TX_STATS_OCTETS);
TG3_STAT_ADD32(&sp->tx_collisions, MAC_TX_STATS_COLLISIONS);
TG3_STAT_ADD32(&sp->tx_xon_sent, MAC_TX_STATS_XON_SENT);
TG3_STAT_ADD32(&sp->tx_xoff_sent, MAC_TX_STATS_XOFF_SENT);
TG3_STAT_ADD32(&sp->tx_mac_errors, MAC_TX_STATS_MAC_ERRORS);
TG3_STAT_ADD32(&sp->tx_single_collisions, MAC_TX_STATS_SINGLE_COLLISIONS);
TG3_STAT_ADD32(&sp->tx_mult_collisions, MAC_TX_STATS_MULT_COLLISIONS);
TG3_STAT_ADD32(&sp->tx_deferred, MAC_TX_STATS_DEFERRED);
TG3_STAT_ADD32(&sp->tx_excessive_collisions, MAC_TX_STATS_EXCESSIVE_COL);
TG3_STAT_ADD32(&sp->tx_late_collisions, MAC_TX_STATS_LATE_COL);
TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST);
TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST);
TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST);
TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS);
TG3_STAT_ADD32(&sp->rx_fragments, MAC_RX_STATS_FRAGMENTS);
TG3_STAT_ADD32(&sp->rx_ucast_packets, MAC_RX_STATS_UCAST);
TG3_STAT_ADD32(&sp->rx_mcast_packets, MAC_RX_STATS_MCAST);
TG3_STAT_ADD32(&sp->rx_bcast_packets, MAC_RX_STATS_BCAST);
TG3_STAT_ADD32(&sp->rx_fcs_errors, MAC_RX_STATS_FCS_ERRORS);
TG3_STAT_ADD32(&sp->rx_align_errors, MAC_RX_STATS_ALIGN_ERRORS);
TG3_STAT_ADD32(&sp->rx_xon_pause_rcvd, MAC_RX_STATS_XON_PAUSE_RECVD);
TG3_STAT_ADD32(&sp->rx_xoff_pause_rcvd, MAC_RX_STATS_XOFF_PAUSE_RECVD);
TG3_STAT_ADD32(&sp->rx_mac_ctrl_rcvd, MAC_RX_STATS_MAC_CTRL_RECVD);
TG3_STAT_ADD32(&sp->rx_xoff_entered, MAC_RX_STATS_XOFF_ENTERED);
TG3_STAT_ADD32(&sp->rx_frame_too_long_errors, MAC_RX_STATS_FRAME_TOO_LONG);
TG3_STAT_ADD32(&sp->rx_jabbers, MAC_RX_STATS_JABBERS);
TG3_STAT_ADD32(&sp->rx_undersize_packets, MAC_RX_STATS_UNDERSIZE);
TG3_STAT_ADD32(&sp->rxbds_empty, RCVLPC_NO_RCV_BD_CNT);
TG3_STAT_ADD32(&sp->rx_discards, RCVLPC_IN_DISCARDS_CNT);
TG3_STAT_ADD32(&sp->rx_errors, RCVLPC_IN_ERRORS_CNT);
}
static void tg3_timer(unsigned long __opaque)
{
struct tg3 *tp = (struct tg3 *) __opaque;
if (tp->irq_sync)
goto restart_timer;
spin_lock(&tp->lock);
if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
/* All of this garbage is because when using non-tagged
* IRQ status the mailbox/status_block protocol the chip
* uses with the cpu is race prone.
*/
if (tp->hw_status->status & SD_STATUS_UPDATED) {
tw32(GRC_LOCAL_CTRL,
tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
} else {
tw32(HOSTCC_MODE, tp->coalesce_mode |
(HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW));
}
if (!(tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
tp->tg3_flags2 |= TG3_FLG2_RESTART_TIMER;
spin_unlock(&tp->lock);
schedule_work(&tp->reset_task);
return;
}
}
/* This part only runs once per second. */
if (!--tp->timer_counter) {
if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
tg3_periodic_fetch_stats(tp);
if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
u32 mac_stat;
int phy_event;
mac_stat = tr32(MAC_STATUS);
phy_event = 0;
if (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT) {
if (mac_stat & MAC_STATUS_MI_INTERRUPT)
phy_event = 1;
} else if (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)
phy_event = 1;
if (phy_event)
tg3_setup_phy(tp, 0);
} else if (tp->tg3_flags & TG3_FLAG_POLL_SERDES) {
u32 mac_stat = tr32(MAC_STATUS);
int need_setup = 0;
if (netif_carrier_ok(tp->dev) &&
(mac_stat & MAC_STATUS_LNKSTATE_CHANGED)) {
need_setup = 1;
}
if (! netif_carrier_ok(tp->dev) &&
(mac_stat & (MAC_STATUS_PCS_SYNCED |
MAC_STATUS_SIGNAL_DET))) {
need_setup = 1;
}
if (need_setup) {
if (!tp->serdes_counter) {
tw32_f(MAC_MODE,
(tp->mac_mode &
~MAC_MODE_PORT_MODE_MASK));
udelay(40);
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
}
tg3_setup_phy(tp, 0);
}
} else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
tg3_serdes_parallel_detect(tp);
tp->timer_counter = tp->timer_multiplier;
}
/* Heartbeat is only sent once every 2 seconds.
*
* The heartbeat is to tell the ASF firmware that the host
* driver is still alive. In the event that the OS crashes,
* ASF needs to reset the hardware to free up the FIFO space
* that may be filled with rx packets destined for the host.
* If the FIFO is full, ASF will no longer function properly.
*
* Unintended resets have been reported on real time kernels
* where the timer doesn't run on time. Netpoll will also have
* same problem.
*
* The new FWCMD_NICDRV_ALIVE3 command tells the ASF firmware
* to check the ring condition when the heartbeat is expiring
* before doing the reset. This will prevent most unintended
* resets.
*/
if (!--tp->asf_counter) {
if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
tg3_wait_for_event_ack(tp);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX,
FWCMD_NICDRV_ALIVE3);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 4);
/* 5 seconds timeout */
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX, 5);
tg3_generate_fw_event(tp);
}
tp->asf_counter = tp->asf_multiplier;
}
spin_unlock(&tp->lock);
restart_timer:
tp->timer.expires = jiffies + tp->timer_offset;
add_timer(&tp->timer);
}
static int tg3_request_irq(struct tg3 *tp)
{
irq_handler_t fn;
unsigned long flags;
struct net_device *dev = tp->dev;
if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
fn = tg3_msi;
if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
fn = tg3_msi_1shot;
flags = IRQF_SAMPLE_RANDOM;
} else {
fn = tg3_interrupt;
if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
fn = tg3_interrupt_tagged;
flags = IRQF_SHARED | IRQF_SAMPLE_RANDOM;
}
return (request_irq(tp->pdev->irq, fn, flags, dev->name, dev));
}
static int tg3_test_interrupt(struct tg3 *tp)
{
struct net_device *dev = tp->dev;
int err, i, intr_ok = 0;
if (!netif_running(dev))
return -ENODEV;
tg3_disable_ints(tp);
free_irq(tp->pdev->irq, dev);
err = request_irq(tp->pdev->irq, tg3_test_isr,
IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, dev);
if (err)
return err;
tp->hw_status->status &= ~SD_STATUS_UPDATED;
tg3_enable_ints(tp);
tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
HOSTCC_MODE_NOW);
for (i = 0; i < 5; i++) {
u32 int_mbox, misc_host_ctrl;
int_mbox = tr32_mailbox(MAILBOX_INTERRUPT_0 +
TG3_64BIT_REG_LOW);
misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
if ((int_mbox != 0) ||
(misc_host_ctrl & MISC_HOST_CTRL_MASK_PCI_INT)) {
intr_ok = 1;
break;
}
msleep(10);
}
tg3_disable_ints(tp);
free_irq(tp->pdev->irq, dev);
err = tg3_request_irq(tp);
if (err)
return err;
if (intr_ok)
return 0;
return -EIO;
}
/* Returns 0 if MSI test succeeds or MSI test fails and INTx mode is
* successfully restored
*/
static int tg3_test_msi(struct tg3 *tp)
{
struct net_device *dev = tp->dev;
int err;
u16 pci_cmd;
if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSI))
return 0;
/* Turn off SERR reporting in case MSI terminates with Master
* Abort.
*/
pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
pci_write_config_word(tp->pdev, PCI_COMMAND,
pci_cmd & ~PCI_COMMAND_SERR);
err = tg3_test_interrupt(tp);
pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
if (!err)
return 0;
/* other failures */
if (err != -EIO)
return err;
/* MSI test failed, go back to INTx mode */
printk(KERN_WARNING PFX "%s: No interrupt was generated using MSI, "
"switching to INTx mode. Please report this failure to "
"the PCI maintainer and include system chipset information.\n",
tp->dev->name);
free_irq(tp->pdev->irq, dev);
pci_disable_msi(tp->pdev);
tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
err = tg3_request_irq(tp);
if (err)
return err;
/* Need to reset the chip because the MSI cycle may have terminated
* with Master Abort.
*/
tg3_full_lock(tp, 1);
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
err = tg3_init_hw(tp, 1);
tg3_full_unlock(tp);
if (err)
free_irq(tp->pdev->irq, dev);
return err;
}
static int tg3_request_firmware(struct tg3 *tp)
{
const __be32 *fw_data;
if (request_firmware(&tp->fw, tp->fw_needed, &tp->pdev->dev)) {
printk(KERN_ERR "%s: Failed to load firmware \"%s\"\n",
tp->dev->name, tp->fw_needed);
return -ENOENT;
}
fw_data = (void *)tp->fw->data;
/* Firmware blob starts with version numbers, followed by
* start address and _full_ length including BSS sections
* (which must be longer than the actual data, of course
*/
tp->fw_len = be32_to_cpu(fw_data[2]); /* includes bss */
if (tp->fw_len < (tp->fw->size - 12)) {
printk(KERN_ERR "%s: bogus length %d in \"%s\"\n",
tp->dev->name, tp->fw_len, tp->fw_needed);
release_firmware(tp->fw);
tp->fw = NULL;
return -EINVAL;
}
/* We no longer need firmware; we have it. */
tp->fw_needed = NULL;
return 0;
}
static int tg3_open(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
int err;
if (tp->fw_needed) {
err = tg3_request_firmware(tp);
if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
if (err)
return err;
} else if (err) {
printk(KERN_WARNING "%s: TSO capability disabled.\n",
tp->dev->name);
tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
} else if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
printk(KERN_NOTICE "%s: TSO capability restored.\n",
tp->dev->name);
tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
}
}
netif_carrier_off(tp->dev);
err = tg3_set_power_state(tp, PCI_D0);
if (err)
return err;
tg3_full_lock(tp, 0);
tg3_disable_ints(tp);
tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
tg3_full_unlock(tp);
/* The placement of this call is tied
* to the setup and use of Host TX descriptors.
*/
err = tg3_alloc_consistent(tp);
if (err)
return err;
if (tp->tg3_flags & TG3_FLAG_SUPPORT_MSI) {
/* All MSI supporting chips should support tagged
* status. Assert that this is the case.
*/
if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
printk(KERN_WARNING PFX "%s: MSI without TAGGED? "
"Not using MSI.\n", tp->dev->name);
} else if (pci_enable_msi(tp->pdev) == 0) {
u32 msi_mode;
msi_mode = tr32(MSGINT_MODE);
tw32(MSGINT_MODE, msi_mode | MSGINT_MODE_ENABLE);
tp->tg3_flags2 |= TG3_FLG2_USING_MSI;
}
}
err = tg3_request_irq(tp);
if (err) {
if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
pci_disable_msi(tp->pdev);
tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
}
tg3_free_consistent(tp);
return err;
}
napi_enable(&tp->napi);
tg3_full_lock(tp, 0);
err = tg3_init_hw(tp, 1);
if (err) {
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
tg3_free_rings(tp);
} else {
if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
tp->timer_offset = HZ;
else
tp->timer_offset = HZ / 10;
BUG_ON(tp->timer_offset > HZ);
tp->timer_counter = tp->timer_multiplier =
(HZ / tp->timer_offset);
tp->asf_counter = tp->asf_multiplier =
((HZ / tp->timer_offset) * 2);
init_timer(&tp->timer);
tp->timer.expires = jiffies + tp->timer_offset;
tp->timer.data = (unsigned long) tp;
tp->timer.function = tg3_timer;
}
tg3_full_unlock(tp);
if (err) {
napi_disable(&tp->napi);
free_irq(tp->pdev->irq, dev);
if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
pci_disable_msi(tp->pdev);
tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
}
tg3_free_consistent(tp);
return err;
}
if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
err = tg3_test_msi(tp);
if (err) {
tg3_full_lock(tp, 0);
if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
pci_disable_msi(tp->pdev);
tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
}
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
tg3_free_rings(tp);
tg3_free_consistent(tp);
tg3_full_unlock(tp);
napi_disable(&tp->napi);
return err;
}
if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI) {
u32 val = tr32(PCIE_TRANSACTION_CFG);
tw32(PCIE_TRANSACTION_CFG,
val | PCIE_TRANS_CFG_1SHOT_MSI);
}
}
}
tg3_phy_start(tp);
tg3_full_lock(tp, 0);
add_timer(&tp->timer);
tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
tg3_enable_ints(tp);
tg3_full_unlock(tp);
netif_start_queue(dev);
return 0;
}
#if 0
/*static*/ void tg3_dump_state(struct tg3 *tp)
{
u32 val32, val32_2, val32_3, val32_4, val32_5;
u16 val16;
int i;
pci_read_config_word(tp->pdev, PCI_STATUS, &val16);
pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE, &val32);
printk("DEBUG: PCI status [%04x] TG3PCI state[%08x]\n",
val16, val32);
/* MAC block */
printk("DEBUG: MAC_MODE[%08x] MAC_STATUS[%08x]\n",
tr32(MAC_MODE), tr32(MAC_STATUS));
printk(" MAC_EVENT[%08x] MAC_LED_CTRL[%08x]\n",
tr32(MAC_EVENT), tr32(MAC_LED_CTRL));
printk("DEBUG: MAC_TX_MODE[%08x] MAC_TX_STATUS[%08x]\n",
tr32(MAC_TX_MODE), tr32(MAC_TX_STATUS));
printk(" MAC_RX_MODE[%08x] MAC_RX_STATUS[%08x]\n",
tr32(MAC_RX_MODE), tr32(MAC_RX_STATUS));
/* Send data initiator control block */
printk("DEBUG: SNDDATAI_MODE[%08x] SNDDATAI_STATUS[%08x]\n",
tr32(SNDDATAI_MODE), tr32(SNDDATAI_STATUS));
printk(" SNDDATAI_STATSCTRL[%08x]\n",
tr32(SNDDATAI_STATSCTRL));
/* Send data completion control block */
printk("DEBUG: SNDDATAC_MODE[%08x]\n", tr32(SNDDATAC_MODE));
/* Send BD ring selector block */
printk("DEBUG: SNDBDS_MODE[%08x] SNDBDS_STATUS[%08x]\n",
tr32(SNDBDS_MODE), tr32(SNDBDS_STATUS));
/* Send BD initiator control block */
printk("DEBUG: SNDBDI_MODE[%08x] SNDBDI_STATUS[%08x]\n",
tr32(SNDBDI_MODE), tr32(SNDBDI_STATUS));
/* Send BD completion control block */
printk("DEBUG: SNDBDC_MODE[%08x]\n", tr32(SNDBDC_MODE));
/* Receive list placement control block */
printk("DEBUG: RCVLPC_MODE[%08x] RCVLPC_STATUS[%08x]\n",
tr32(RCVLPC_MODE), tr32(RCVLPC_STATUS));
printk(" RCVLPC_STATSCTRL[%08x]\n",
tr32(RCVLPC_STATSCTRL));
/* Receive data and receive BD initiator control block */
printk("DEBUG: RCVDBDI_MODE[%08x] RCVDBDI_STATUS[%08x]\n",
tr32(RCVDBDI_MODE), tr32(RCVDBDI_STATUS));
/* Receive data completion control block */
printk("DEBUG: RCVDCC_MODE[%08x]\n",
tr32(RCVDCC_MODE));
/* Receive BD initiator control block */
printk("DEBUG: RCVBDI_MODE[%08x] RCVBDI_STATUS[%08x]\n",
tr32(RCVBDI_MODE), tr32(RCVBDI_STATUS));
/* Receive BD completion control block */
printk("DEBUG: RCVCC_MODE[%08x] RCVCC_STATUS[%08x]\n",
tr32(RCVCC_MODE), tr32(RCVCC_STATUS));
/* Receive list selector control block */
printk("DEBUG: RCVLSC_MODE[%08x] RCVLSC_STATUS[%08x]\n",
tr32(RCVLSC_MODE), tr32(RCVLSC_STATUS));
/* Mbuf cluster free block */
printk("DEBUG: MBFREE_MODE[%08x] MBFREE_STATUS[%08x]\n",
tr32(MBFREE_MODE), tr32(MBFREE_STATUS));
/* Host coalescing control block */
printk("DEBUG: HOSTCC_MODE[%08x] HOSTCC_STATUS[%08x]\n",
tr32(HOSTCC_MODE), tr32(HOSTCC_STATUS));
printk("DEBUG: HOSTCC_STATS_BLK_HOST_ADDR[%08x%08x]\n",
tr32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH),
tr32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW));
printk("DEBUG: HOSTCC_STATUS_BLK_HOST_ADDR[%08x%08x]\n",
tr32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH),
tr32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW));
printk("DEBUG: HOSTCC_STATS_BLK_NIC_ADDR[%08x]\n",
tr32(HOSTCC_STATS_BLK_NIC_ADDR));
printk("DEBUG: HOSTCC_STATUS_BLK_NIC_ADDR[%08x]\n",
tr32(HOSTCC_STATUS_BLK_NIC_ADDR));
/* Memory arbiter control block */
printk("DEBUG: MEMARB_MODE[%08x] MEMARB_STATUS[%08x]\n",
tr32(MEMARB_MODE), tr32(MEMARB_STATUS));
/* Buffer manager control block */
printk("DEBUG: BUFMGR_MODE[%08x] BUFMGR_STATUS[%08x]\n",
tr32(BUFMGR_MODE), tr32(BUFMGR_STATUS));
printk("DEBUG: BUFMGR_MB_POOL_ADDR[%08x] BUFMGR_MB_POOL_SIZE[%08x]\n",
tr32(BUFMGR_MB_POOL_ADDR), tr32(BUFMGR_MB_POOL_SIZE));
printk("DEBUG: BUFMGR_DMA_DESC_POOL_ADDR[%08x] "
"BUFMGR_DMA_DESC_POOL_SIZE[%08x]\n",
tr32(BUFMGR_DMA_DESC_POOL_ADDR),
tr32(BUFMGR_DMA_DESC_POOL_SIZE));
/* Read DMA control block */
printk("DEBUG: RDMAC_MODE[%08x] RDMAC_STATUS[%08x]\n",
tr32(RDMAC_MODE), tr32(RDMAC_STATUS));
/* Write DMA control block */
printk("DEBUG: WDMAC_MODE[%08x] WDMAC_STATUS[%08x]\n",
tr32(WDMAC_MODE), tr32(WDMAC_STATUS));
/* DMA completion block */
printk("DEBUG: DMAC_MODE[%08x]\n",
tr32(DMAC_MODE));
/* GRC block */
printk("DEBUG: GRC_MODE[%08x] GRC_MISC_CFG[%08x]\n",
tr32(GRC_MODE), tr32(GRC_MISC_CFG));
printk("DEBUG: GRC_LOCAL_CTRL[%08x]\n",
tr32(GRC_LOCAL_CTRL));
/* TG3_BDINFOs */
printk("DEBUG: RCVDBDI_JUMBO_BD[%08x%08x:%08x:%08x]\n",
tr32(RCVDBDI_JUMBO_BD + 0x0),
tr32(RCVDBDI_JUMBO_BD + 0x4),
tr32(RCVDBDI_JUMBO_BD + 0x8),
tr32(RCVDBDI_JUMBO_BD + 0xc));
printk("DEBUG: RCVDBDI_STD_BD[%08x%08x:%08x:%08x]\n",
tr32(RCVDBDI_STD_BD + 0x0),
tr32(RCVDBDI_STD_BD + 0x4),
tr32(RCVDBDI_STD_BD + 0x8),
tr32(RCVDBDI_STD_BD + 0xc));
printk("DEBUG: RCVDBDI_MINI_BD[%08x%08x:%08x:%08x]\n",
tr32(RCVDBDI_MINI_BD + 0x0),
tr32(RCVDBDI_MINI_BD + 0x4),
tr32(RCVDBDI_MINI_BD + 0x8),
tr32(RCVDBDI_MINI_BD + 0xc));
tg3_read_mem(tp, NIC_SRAM_SEND_RCB + 0x0, &val32);
tg3_read_mem(tp, NIC_SRAM_SEND_RCB + 0x4, &val32_2);
tg3_read_mem(tp, NIC_SRAM_SEND_RCB + 0x8, &val32_3);
tg3_read_mem(tp, NIC_SRAM_SEND_RCB + 0xc, &val32_4);
printk("DEBUG: SRAM_SEND_RCB_0[%08x%08x:%08x:%08x]\n",
val32, val32_2, val32_3, val32_4);
tg3_read_mem(tp, NIC_SRAM_RCV_RET_RCB + 0x0, &val32);
tg3_read_mem(tp, NIC_SRAM_RCV_RET_RCB + 0x4, &val32_2);
tg3_read_mem(tp, NIC_SRAM_RCV_RET_RCB + 0x8, &val32_3);
tg3_read_mem(tp, NIC_SRAM_RCV_RET_RCB + 0xc, &val32_4);
printk("DEBUG: SRAM_RCV_RET_RCB_0[%08x%08x:%08x:%08x]\n",
val32, val32_2, val32_3, val32_4);
tg3_read_mem(tp, NIC_SRAM_STATUS_BLK + 0x0, &val32);
tg3_read_mem(tp, NIC_SRAM_STATUS_BLK + 0x4, &val32_2);
tg3_read_mem(tp, NIC_SRAM_STATUS_BLK + 0x8, &val32_3);
tg3_read_mem(tp, NIC_SRAM_STATUS_BLK + 0xc, &val32_4);
tg3_read_mem(tp, NIC_SRAM_STATUS_BLK + 0x10, &val32_5);
printk("DEBUG: SRAM_STATUS_BLK[%08x:%08x:%08x:%08x:%08x]\n",
val32, val32_2, val32_3, val32_4, val32_5);
/* SW status block */
printk("DEBUG: Host status block [%08x:%08x:(%04x:%04x:%04x):(%04x:%04x)]\n",
tp->hw_status->status,
tp->hw_status->status_tag,
tp->hw_status->rx_jumbo_consumer,
tp->hw_status->rx_consumer,
tp->hw_status->rx_mini_consumer,
tp->hw_status->idx[0].rx_producer,
tp->hw_status->idx[0].tx_consumer);
/* SW statistics block */
printk("DEBUG: Host statistics block [%08x:%08x:%08x:%08x]\n",
((u32 *)tp->hw_stats)[0],
((u32 *)tp->hw_stats)[1],
((u32 *)tp->hw_stats)[2],
((u32 *)tp->hw_stats)[3]);
/* Mailboxes */
printk("DEBUG: SNDHOST_PROD[%08x%08x] SNDNIC_PROD[%08x%08x]\n",
tr32_mailbox(MAILBOX_SNDHOST_PROD_IDX_0 + 0x0),
tr32_mailbox(MAILBOX_SNDHOST_PROD_IDX_0 + 0x4),
tr32_mailbox(MAILBOX_SNDNIC_PROD_IDX_0 + 0x0),
tr32_mailbox(MAILBOX_SNDNIC_PROD_IDX_0 + 0x4));
/* NIC side send descriptors. */
for (i = 0; i < 6; i++) {
unsigned long txd;
txd = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_TX_BUFFER_DESC
+ (i * sizeof(struct tg3_tx_buffer_desc));
printk("DEBUG: NIC TXD(%d)[%08x:%08x:%08x:%08x]\n",
i,
readl(txd + 0x0), readl(txd + 0x4),
readl(txd + 0x8), readl(txd + 0xc));
}
/* NIC side RX descriptors. */
for (i = 0; i < 6; i++) {
unsigned long rxd;
rxd = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_RX_BUFFER_DESC
+ (i * sizeof(struct tg3_rx_buffer_desc));
printk("DEBUG: NIC RXD_STD(%d)[0][%08x:%08x:%08x:%08x]\n",
i,
readl(rxd + 0x0), readl(rxd + 0x4),
readl(rxd + 0x8), readl(rxd + 0xc));
rxd += (4 * sizeof(u32));
printk("DEBUG: NIC RXD_STD(%d)[1][%08x:%08x:%08x:%08x]\n",
i,
readl(rxd + 0x0), readl(rxd + 0x4),
readl(rxd + 0x8), readl(rxd + 0xc));
}
for (i = 0; i < 6; i++) {
unsigned long rxd;
rxd = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_RX_JUMBO_BUFFER_DESC
+ (i * sizeof(struct tg3_rx_buffer_desc));
printk("DEBUG: NIC RXD_JUMBO(%d)[0][%08x:%08x:%08x:%08x]\n",
i,
readl(rxd + 0x0), readl(rxd + 0x4),
readl(rxd + 0x8), readl(rxd + 0xc));
rxd += (4 * sizeof(u32));
printk("DEBUG: NIC RXD_JUMBO(%d)[1][%08x:%08x:%08x:%08x]\n",
i,
readl(rxd + 0x0), readl(rxd + 0x4),
readl(rxd + 0x8), readl(rxd + 0xc));
}
}
#endif
static struct net_device_stats *tg3_get_stats(struct net_device *);
static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *);
static int tg3_close(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
napi_disable(&tp->napi);
cancel_work_sync(&tp->reset_task);
netif_stop_queue(dev);
del_timer_sync(&tp->timer);
tg3_full_lock(tp, 1);
#if 0
tg3_dump_state(tp);
#endif
tg3_disable_ints(tp);
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
tg3_free_rings(tp);
tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
tg3_full_unlock(tp);
free_irq(tp->pdev->irq, dev);
if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
pci_disable_msi(tp->pdev);
tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
}
memcpy(&tp->net_stats_prev, tg3_get_stats(tp->dev),
sizeof(tp->net_stats_prev));
memcpy(&tp->estats_prev, tg3_get_estats(tp),
sizeof(tp->estats_prev));
tg3_free_consistent(tp);
tg3_set_power_state(tp, PCI_D3hot);
netif_carrier_off(tp->dev);
return 0;
}
static inline unsigned long get_stat64(tg3_stat64_t *val)
{
unsigned long ret;
#if (BITS_PER_LONG == 32)
ret = val->low;
#else
ret = ((u64)val->high << 32) | ((u64)val->low);
#endif
return ret;
}
static inline u64 get_estat64(tg3_stat64_t *val)
{
return ((u64)val->high << 32) | ((u64)val->low);
}
static unsigned long calc_crc_errors(struct tg3 *tp)
{
struct tg3_hw_stats *hw_stats = tp->hw_stats;
if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
u32 val;
spin_lock_bh(&tp->lock);
if (!tg3_readphy(tp, MII_TG3_TEST1, &val)) {
tg3_writephy(tp, MII_TG3_TEST1,
val | MII_TG3_TEST1_CRC_EN);
tg3_readphy(tp, 0x14, &val);
} else
val = 0;
spin_unlock_bh(&tp->lock);
tp->phy_crc_errors += val;
return tp->phy_crc_errors;
}
return get_stat64(&hw_stats->rx_fcs_errors);
}
#define ESTAT_ADD(member) \
estats->member = old_estats->member + \
get_estat64(&hw_stats->member)
static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *tp)
{
struct tg3_ethtool_stats *estats = &tp->estats;
struct tg3_ethtool_stats *old_estats = &tp->estats_prev;
struct tg3_hw_stats *hw_stats = tp->hw_stats;
if (!hw_stats)
return old_estats;
ESTAT_ADD(rx_octets);
ESTAT_ADD(rx_fragments);
ESTAT_ADD(rx_ucast_packets);
ESTAT_ADD(rx_mcast_packets);
ESTAT_ADD(rx_bcast_packets);
ESTAT_ADD(rx_fcs_errors);
ESTAT_ADD(rx_align_errors);
ESTAT_ADD(rx_xon_pause_rcvd);
ESTAT_ADD(rx_xoff_pause_rcvd);
ESTAT_ADD(rx_mac_ctrl_rcvd);
ESTAT_ADD(rx_xoff_entered);
ESTAT_ADD(rx_frame_too_long_errors);
ESTAT_ADD(rx_jabbers);
ESTAT_ADD(rx_undersize_packets);
ESTAT_ADD(rx_in_length_errors);
ESTAT_ADD(rx_out_length_errors);
ESTAT_ADD(rx_64_or_less_octet_packets);
ESTAT_ADD(rx_65_to_127_octet_packets);
ESTAT_ADD(rx_128_to_255_octet_packets);
ESTAT_ADD(rx_256_to_511_octet_packets);
ESTAT_ADD(rx_512_to_1023_octet_packets);
ESTAT_ADD(rx_1024_to_1522_octet_packets);
ESTAT_ADD(rx_1523_to_2047_octet_packets);
ESTAT_ADD(rx_2048_to_4095_octet_packets);
ESTAT_ADD(rx_4096_to_8191_octet_packets);
ESTAT_ADD(rx_8192_to_9022_octet_packets);
ESTAT_ADD(tx_octets);
ESTAT_ADD(tx_collisions);
ESTAT_ADD(tx_xon_sent);
ESTAT_ADD(tx_xoff_sent);
ESTAT_ADD(tx_flow_control);
ESTAT_ADD(tx_mac_errors);
ESTAT_ADD(tx_single_collisions);
ESTAT_ADD(tx_mult_collisions);
ESTAT_ADD(tx_deferred);
ESTAT_ADD(tx_excessive_collisions);
ESTAT_ADD(tx_late_collisions);
ESTAT_ADD(tx_collide_2times);
ESTAT_ADD(tx_collide_3times);
ESTAT_ADD(tx_collide_4times);
ESTAT_ADD(tx_collide_5times);
ESTAT_ADD(tx_collide_6times);
ESTAT_ADD(tx_collide_7times);
ESTAT_ADD(tx_collide_8times);
ESTAT_ADD(tx_collide_9times);
ESTAT_ADD(tx_collide_10times);
ESTAT_ADD(tx_collide_11times);
ESTAT_ADD(tx_collide_12times);
ESTAT_ADD(tx_collide_13times);
ESTAT_ADD(tx_collide_14times);
ESTAT_ADD(tx_collide_15times);
ESTAT_ADD(tx_ucast_packets);
ESTAT_ADD(tx_mcast_packets);
ESTAT_ADD(tx_bcast_packets);
ESTAT_ADD(tx_carrier_sense_errors);
ESTAT_ADD(tx_discards);
ESTAT_ADD(tx_errors);
ESTAT_ADD(dma_writeq_full);
ESTAT_ADD(dma_write_prioq_full);
ESTAT_ADD(rxbds_empty);
ESTAT_ADD(rx_discards);
ESTAT_ADD(rx_errors);
ESTAT_ADD(rx_threshold_hit);
ESTAT_ADD(dma_readq_full);
ESTAT_ADD(dma_read_prioq_full);
ESTAT_ADD(tx_comp_queue_full);
ESTAT_ADD(ring_set_send_prod_index);
ESTAT_ADD(ring_status_update);
ESTAT_ADD(nic_irqs);
ESTAT_ADD(nic_avoided_irqs);
ESTAT_ADD(nic_tx_threshold_hit);
return estats;
}
static struct net_device_stats *tg3_get_stats(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
struct net_device_stats *stats = &tp->net_stats;
struct net_device_stats *old_stats = &tp->net_stats_prev;
struct tg3_hw_stats *hw_stats = tp->hw_stats;
if (!hw_stats)
return old_stats;
stats->rx_packets = old_stats->rx_packets +
get_stat64(&hw_stats->rx_ucast_packets) +
get_stat64(&hw_stats->rx_mcast_packets) +
get_stat64(&hw_stats->rx_bcast_packets);
stats->tx_packets = old_stats->tx_packets +
get_stat64(&hw_stats->tx_ucast_packets) +
get_stat64(&hw_stats->tx_mcast_packets) +
get_stat64(&hw_stats->tx_bcast_packets);
stats->rx_bytes = old_stats->rx_bytes +
get_stat64(&hw_stats->rx_octets);
stats->tx_bytes = old_stats->tx_bytes +
get_stat64(&hw_stats->tx_octets);
stats->rx_errors = old_stats->rx_errors +
get_stat64(&hw_stats->rx_errors);
stats->tx_errors = old_stats->tx_errors +
get_stat64(&hw_stats->tx_errors) +
get_stat64(&hw_stats->tx_mac_errors) +
get_stat64(&hw_stats->tx_carrier_sense_errors) +
get_stat64(&hw_stats->tx_discards);
stats->multicast = old_stats->multicast +
get_stat64(&hw_stats->rx_mcast_packets);
stats->collisions = old_stats->collisions +
get_stat64(&hw_stats->tx_collisions);
stats->rx_length_errors = old_stats->rx_length_errors +
get_stat64(&hw_stats->rx_frame_too_long_errors) +
get_stat64(&hw_stats->rx_undersize_packets);
stats->rx_over_errors = old_stats->rx_over_errors +
get_stat64(&hw_stats->rxbds_empty);
stats->rx_frame_errors = old_stats->rx_frame_errors +
get_stat64(&hw_stats->rx_align_errors);
stats->tx_aborted_errors = old_stats->tx_aborted_errors +
get_stat64(&hw_stats->tx_discards);
stats->tx_carrier_errors = old_stats->tx_carrier_errors +
get_stat64(&hw_stats->tx_carrier_sense_errors);
stats->rx_crc_errors = old_stats->rx_crc_errors +
calc_crc_errors(tp);
stats->rx_missed_errors = old_stats->rx_missed_errors +
get_stat64(&hw_stats->rx_discards);
return stats;
}
static inline u32 calc_crc(unsigned char *buf, int len)
{
u32 reg;
u32 tmp;
int j, k;
reg = 0xffffffff;
for (j = 0; j < len; j++) {
reg ^= buf[j];
for (k = 0; k < 8; k++) {
tmp = reg & 0x01;
reg >>= 1;
if (tmp) {
reg ^= 0xedb88320;
}
}
}
return ~reg;
}
static void tg3_set_multi(struct tg3 *tp, unsigned int accept_all)
{
/* accept or reject all multicast frames */
tw32(MAC_HASH_REG_0, accept_all ? 0xffffffff : 0);
tw32(MAC_HASH_REG_1, accept_all ? 0xffffffff : 0);
tw32(MAC_HASH_REG_2, accept_all ? 0xffffffff : 0);
tw32(MAC_HASH_REG_3, accept_all ? 0xffffffff : 0);
}
static void __tg3_set_rx_mode(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
u32 rx_mode;
rx_mode = tp->rx_mode & ~(RX_MODE_PROMISC |
RX_MODE_KEEP_VLAN_TAG);
/* When ASF is in use, we always keep the RX_MODE_KEEP_VLAN_TAG
* flag clear.
*/
#if TG3_VLAN_TAG_USED
if (!tp->vlgrp &&
!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
rx_mode |= RX_MODE_KEEP_VLAN_TAG;
#else
/* By definition, VLAN is disabled always in this
* case.
*/
if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
rx_mode |= RX_MODE_KEEP_VLAN_TAG;
#endif
if (dev->flags & IFF_PROMISC) {
/* Promiscuous mode. */
rx_mode |= RX_MODE_PROMISC;
} else if (dev->flags & IFF_ALLMULTI) {
/* Accept all multicast. */
tg3_set_multi (tp, 1);
} else if (dev->mc_count < 1) {
/* Reject all multicast. */
tg3_set_multi (tp, 0);
} else {
/* Accept one or more multicast(s). */
struct dev_mc_list *mclist;
unsigned int i;
u32 mc_filter[4] = { 0, };
u32 regidx;
u32 bit;
u32 crc;
for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
i++, mclist = mclist->next) {
crc = calc_crc (mclist->dmi_addr, ETH_ALEN);
bit = ~crc & 0x7f;
regidx = (bit & 0x60) >> 5;
bit &= 0x1f;
mc_filter[regidx] |= (1 << bit);
}
tw32(MAC_HASH_REG_0, mc_filter[0]);
tw32(MAC_HASH_REG_1, mc_filter[1]);
tw32(MAC_HASH_REG_2, mc_filter[2]);
tw32(MAC_HASH_REG_3, mc_filter[3]);
}
if (rx_mode != tp->rx_mode) {
tp->rx_mode = rx_mode;
tw32_f(MAC_RX_MODE, rx_mode);
udelay(10);
}
}
static void tg3_set_rx_mode(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
if (!netif_running(dev))
return;
tg3_full_lock(tp, 0);
__tg3_set_rx_mode(dev);
tg3_full_unlock(tp);
}
#define TG3_REGDUMP_LEN (32 * 1024)
static int tg3_get_regs_len(struct net_device *dev)
{
return TG3_REGDUMP_LEN;
}
static void tg3_get_regs(struct net_device *dev,
struct ethtool_regs *regs, void *_p)
{
u32 *p = _p;
struct tg3 *tp = netdev_priv(dev);
u8 *orig_p = _p;
int i;
regs->version = 0;
memset(p, 0, TG3_REGDUMP_LEN);
if (tp->link_config.phy_is_low_power)
return;
tg3_full_lock(tp, 0);
#define __GET_REG32(reg) (*(p)++ = tr32(reg))
#define GET_REG32_LOOP(base,len) \
do { p = (u32 *)(orig_p + (base)); \
for (i = 0; i < len; i += 4) \
__GET_REG32((base) + i); \
} while (0)
#define GET_REG32_1(reg) \
do { p = (u32 *)(orig_p + (reg)); \
__GET_REG32((reg)); \
} while (0)
GET_REG32_LOOP(TG3PCI_VENDOR, 0xb0);
GET_REG32_LOOP(MAILBOX_INTERRUPT_0, 0x200);
GET_REG32_LOOP(MAC_MODE, 0x4f0);
GET_REG32_LOOP(SNDDATAI_MODE, 0xe0);
GET_REG32_1(SNDDATAC_MODE);
GET_REG32_LOOP(SNDBDS_MODE, 0x80);
GET_REG32_LOOP(SNDBDI_MODE, 0x48);
GET_REG32_1(SNDBDC_MODE);
GET_REG32_LOOP(RCVLPC_MODE, 0x20);
GET_REG32_LOOP(RCVLPC_SELLST_BASE, 0x15c);
GET_REG32_LOOP(RCVDBDI_MODE, 0x0c);
GET_REG32_LOOP(RCVDBDI_JUMBO_BD, 0x3c);
GET_REG32_LOOP(RCVDBDI_BD_PROD_IDX_0, 0x44);
GET_REG32_1(RCVDCC_MODE);
GET_REG32_LOOP(RCVBDI_MODE, 0x20);
GET_REG32_LOOP(RCVCC_MODE, 0x14);
GET_REG32_LOOP(RCVLSC_MODE, 0x08);
GET_REG32_1(MBFREE_MODE);
GET_REG32_LOOP(HOSTCC_MODE, 0x100);
GET_REG32_LOOP(MEMARB_MODE, 0x10);
GET_REG32_LOOP(BUFMGR_MODE, 0x58);
GET_REG32_LOOP(RDMAC_MODE, 0x08);
GET_REG32_LOOP(WDMAC_MODE, 0x08);
GET_REG32_1(RX_CPU_MODE);
GET_REG32_1(RX_CPU_STATE);
GET_REG32_1(RX_CPU_PGMCTR);
GET_REG32_1(RX_CPU_HWBKPT);
GET_REG32_1(TX_CPU_MODE);
GET_REG32_1(TX_CPU_STATE);
GET_REG32_1(TX_CPU_PGMCTR);
GET_REG32_LOOP(GRCMBOX_INTERRUPT_0, 0x110);
GET_REG32_LOOP(FTQ_RESET, 0x120);
GET_REG32_LOOP(MSGINT_MODE, 0x0c);
GET_REG32_1(DMAC_MODE);
GET_REG32_LOOP(GRC_MODE, 0x4c);
if (tp->tg3_flags & TG3_FLAG_NVRAM)
GET_REG32_LOOP(NVRAM_CMD, 0x24);
#undef __GET_REG32
#undef GET_REG32_LOOP
#undef GET_REG32_1
tg3_full_unlock(tp);
}
static int tg3_get_eeprom_len(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
return tp->nvram_size;
}
static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
{
struct tg3 *tp = netdev_priv(dev);
int ret;
u8 *pd;
u32 i, offset, len, b_offset, b_count;
__be32 val;
if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
return -EINVAL;
if (tp->link_config.phy_is_low_power)
return -EAGAIN;
offset = eeprom->offset;
len = eeprom->len;
eeprom->len = 0;
eeprom->magic = TG3_EEPROM_MAGIC;
if (offset & 3) {
/* adjustments to start on required 4 byte boundary */
b_offset = offset & 3;
b_count = 4 - b_offset;
if (b_count > len) {
/* i.e. offset=1 len=2 */
b_count = len;
}
ret = tg3_nvram_read_be32(tp, offset-b_offset, &val);
if (ret)
return ret;
memcpy(data, ((char*)&val) + b_offset, b_count);
len -= b_count;
offset += b_count;
eeprom->len += b_count;
}
/* read bytes upto the last 4 byte boundary */
pd = &data[eeprom->len];
for (i = 0; i < (len - (len & 3)); i += 4) {
ret = tg3_nvram_read_be32(tp, offset + i, &val);
if (ret) {
eeprom->len += i;
return ret;
}
memcpy(pd + i, &val, 4);
}
eeprom->len += i;
if (len & 3) {
/* read last bytes not ending on 4 byte boundary */
pd = &data[eeprom->len];
b_count = len & 3;
b_offset = offset + len - b_count;
ret = tg3_nvram_read_be32(tp, b_offset, &val);
if (ret)
return ret;
memcpy(pd, &val, b_count);
eeprom->len += b_count;
}
return 0;
}
static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf);
static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
{
struct tg3 *tp = netdev_priv(dev);
int ret;
u32 offset, len, b_offset, odd_len;
u8 *buf;
__be32 start, end;
if (tp->link_config.phy_is_low_power)
return -EAGAIN;
if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
eeprom->magic != TG3_EEPROM_MAGIC)
return -EINVAL;
offset = eeprom->offset;
len = eeprom->len;
if ((b_offset = (offset & 3))) {
/* adjustments to start on required 4 byte boundary */
ret = tg3_nvram_read_be32(tp, offset-b_offset, &start);
if (ret)
return ret;
len += b_offset;
offset &= ~3;
if (len < 4)
len = 4;
}
odd_len = 0;
if (len & 3) {
/* adjustments to end on required 4 byte boundary */
odd_len = 1;
len = (len + 3) & ~3;
ret = tg3_nvram_read_be32(tp, offset+len-4, &end);
if (ret)
return ret;
}
buf = data;
if (b_offset || odd_len) {
buf = kmalloc(len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
if (b_offset)
memcpy(buf, &start, 4);
if (odd_len)
memcpy(buf+len-4, &end, 4);
memcpy(buf + b_offset, data, eeprom->len);
}
ret = tg3_nvram_write_block(tp, offset, len, buf);
if (buf != data)
kfree(buf);
return ret;
}
static int tg3_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct tg3 *tp = netdev_priv(dev);
if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
return -EAGAIN;
return phy_ethtool_gset(tp->mdio_bus->phy_map[PHY_ADDR], cmd);
}
cmd->supported = (SUPPORTED_Autoneg);
if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
cmd->supported |= (SUPPORTED_1000baseT_Half |
SUPPORTED_1000baseT_Full);
if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)) {
cmd->supported |= (SUPPORTED_100baseT_Half |
SUPPORTED_100baseT_Full |
SUPPORTED_10baseT_Half |
SUPPORTED_10baseT_Full |
SUPPORTED_TP);
cmd->port = PORT_TP;
} else {
cmd->supported |= SUPPORTED_FIBRE;
cmd->port = PORT_FIBRE;
}
cmd->advertising = tp->link_config.advertising;
if (netif_running(dev)) {
cmd->speed = tp->link_config.active_speed;
cmd->duplex = tp->link_config.active_duplex;
}
cmd->phy_address = PHY_ADDR;
cmd->transceiver = XCVR_INTERNAL;
cmd->autoneg = tp->link_config.autoneg;
cmd->maxtxpkt = 0;
cmd->maxrxpkt = 0;
return 0;
}
static int tg3_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct tg3 *tp = netdev_priv(dev);
if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
return -EAGAIN;
return phy_ethtool_sset(tp->mdio_bus->phy_map[PHY_ADDR], cmd);
}
if (cmd->autoneg != AUTONEG_ENABLE &&
cmd->autoneg != AUTONEG_DISABLE)
return -EINVAL;
if (cmd->autoneg == AUTONEG_DISABLE &&
cmd->duplex != DUPLEX_FULL &&
cmd->duplex != DUPLEX_HALF)
return -EINVAL;
if (cmd->autoneg == AUTONEG_ENABLE) {
u32 mask = ADVERTISED_Autoneg |
ADVERTISED_Pause |
ADVERTISED_Asym_Pause;
if (!(tp->tg3_flags2 & TG3_FLAG_10_100_ONLY))
mask |= ADVERTISED_1000baseT_Half |
ADVERTISED_1000baseT_Full;
if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
mask |= ADVERTISED_100baseT_Half |
ADVERTISED_100baseT_Full |
ADVERTISED_10baseT_Half |
ADVERTISED_10baseT_Full |
ADVERTISED_TP;
else
mask |= ADVERTISED_FIBRE;
if (cmd->advertising & ~mask)
return -EINVAL;
mask &= (ADVERTISED_1000baseT_Half |
ADVERTISED_1000baseT_Full |
ADVERTISED_100baseT_Half |
ADVERTISED_100baseT_Full |
ADVERTISED_10baseT_Half |
ADVERTISED_10baseT_Full);
cmd->advertising &= mask;
} else {
if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) {
if (cmd->speed != SPEED_1000)
return -EINVAL;
if (cmd->duplex != DUPLEX_FULL)
return -EINVAL;
} else {
if (cmd->speed != SPEED_100 &&
cmd->speed != SPEED_10)
return -EINVAL;
}
}
tg3_full_lock(tp, 0);
tp->link_config.autoneg = cmd->autoneg;
if (cmd->autoneg == AUTONEG_ENABLE) {
tp->link_config.advertising = (cmd->advertising |
ADVERTISED_Autoneg);
tp->link_config.speed = SPEED_INVALID;
tp->link_config.duplex = DUPLEX_INVALID;
} else {
tp->link_config.advertising = 0;
tp->link_config.speed = cmd->speed;
tp->link_config.duplex = cmd->duplex;
}
tp->link_config.orig_speed = tp->link_config.speed;
tp->link_config.orig_duplex = tp->link_config.duplex;
tp->link_config.orig_autoneg = tp->link_config.autoneg;
if (netif_running(dev))
tg3_setup_phy(tp, 1);
tg3_full_unlock(tp);
return 0;
}
static void tg3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
struct tg3 *tp = netdev_priv(dev);
strcpy(info->driver, DRV_MODULE_NAME);
strcpy(info->version, DRV_MODULE_VERSION);
strcpy(info->fw_version, tp->fw_ver);
strcpy(info->bus_info, pci_name(tp->pdev));
}
static void tg3_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct tg3 *tp = netdev_priv(dev);
if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
device_can_wakeup(&tp->pdev->dev))
wol->supported = WAKE_MAGIC;
else
wol->supported = 0;
wol->wolopts = 0;
if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) &&
device_can_wakeup(&tp->pdev->dev))
wol->wolopts = WAKE_MAGIC;
memset(&wol->sopass, 0, sizeof(wol->sopass));
}
static int tg3_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct tg3 *tp = netdev_priv(dev);
struct device *dp = &tp->pdev->dev;
if (wol->wolopts & ~WAKE_MAGIC)
return -EINVAL;
if ((wol->wolopts & WAKE_MAGIC) &&
!((tp->tg3_flags & TG3_FLAG_WOL_CAP) && device_can_wakeup(dp)))
return -EINVAL;
spin_lock_bh(&tp->lock);
if (wol->wolopts & WAKE_MAGIC) {
tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
device_set_wakeup_enable(dp, true);
} else {
tp->tg3_flags &= ~TG3_FLAG_WOL_ENABLE;
device_set_wakeup_enable(dp, false);
}
spin_unlock_bh(&tp->lock);
return 0;
}
static u32 tg3_get_msglevel(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
return tp->msg_enable;
}
static void tg3_set_msglevel(struct net_device *dev, u32 value)
{
struct tg3 *tp = netdev_priv(dev);
tp->msg_enable = value;
}
static int tg3_set_tso(struct net_device *dev, u32 value)
{
struct tg3 *tp = netdev_priv(dev);
if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
if (value)
return -EINVAL;
return 0;
}
if ((dev->features & NETIF_F_IPV6_CSUM) &&
(tp->tg3_flags2 & TG3_FLG2_HW_TSO_2)) {
if (value) {
dev->features |= NETIF_F_TSO6;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
dev->features |= NETIF_F_TSO_ECN;
} else
dev->features &= ~(NETIF_F_TSO6 | NETIF_F_TSO_ECN);
}
return ethtool_op_set_tso(dev, value);
}
static int tg3_nway_reset(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
int r;
if (!netif_running(dev))
return -EAGAIN;
if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
return -EINVAL;
if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
return -EAGAIN;
r = phy_start_aneg(tp->mdio_bus->phy_map[PHY_ADDR]);
} else {
u32 bmcr;
spin_lock_bh(&tp->lock);
r = -EINVAL;
tg3_readphy(tp, MII_BMCR, &bmcr);
if (!tg3_readphy(tp, MII_BMCR, &bmcr) &&
((bmcr & BMCR_ANENABLE) ||
(tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT))) {
tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANRESTART |
BMCR_ANENABLE);
r = 0;
}
spin_unlock_bh(&tp->lock);
}
return r;
}
static void tg3_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
{
struct tg3 *tp = netdev_priv(dev);
ering->rx_max_pending = TG3_RX_RING_SIZE - 1;
ering->rx_mini_max_pending = 0;
if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
ering->rx_jumbo_max_pending = TG3_RX_JUMBO_RING_SIZE - 1;
else
ering->rx_jumbo_max_pending = 0;
ering->tx_max_pending = TG3_TX_RING_SIZE - 1;
ering->rx_pending = tp->rx_pending;
ering->rx_mini_pending = 0;
if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
ering->rx_jumbo_pending = tp->rx_jumbo_pending;
else
ering->rx_jumbo_pending = 0;
ering->tx_pending = tp->tx_pending;
}
static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
{
struct tg3 *tp = netdev_priv(dev);
int irq_sync = 0, err = 0;
if ((ering->rx_pending > TG3_RX_RING_SIZE - 1) ||
(ering->rx_jumbo_pending > TG3_RX_JUMBO_RING_SIZE - 1) ||
(ering->tx_pending > TG3_TX_RING_SIZE - 1) ||
(ering->tx_pending <= MAX_SKB_FRAGS) ||
((tp->tg3_flags2 & TG3_FLG2_TSO_BUG) &&
(ering->tx_pending <= (MAX_SKB_FRAGS * 3))))
return -EINVAL;
if (netif_running(dev)) {
tg3_phy_stop(tp);
tg3_netif_stop(tp);
irq_sync = 1;
}
tg3_full_lock(tp, irq_sync);
tp->rx_pending = ering->rx_pending;
if ((tp->tg3_flags2 & TG3_FLG2_MAX_RXPEND_64) &&
tp->rx_pending > 63)
tp->rx_pending = 63;
tp->rx_jumbo_pending = ering->rx_jumbo_pending;
tp->tx_pending = ering->tx_pending;
if (netif_running(dev)) {
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
err = tg3_restart_hw(tp, 1);
if (!err)
tg3_netif_start(tp);
}
tg3_full_unlock(tp);
if (irq_sync && !err)
tg3_phy_start(tp);
return err;
}
static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
{
struct tg3 *tp = netdev_priv(dev);
epause->autoneg = (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG) != 0;
if (tp->link_config.active_flowctrl & FLOW_CTRL_RX)
epause->rx_pause = 1;
else
epause->rx_pause = 0;
if (tp->link_config.active_flowctrl & FLOW_CTRL_TX)
epause->tx_pause = 1;
else
epause->tx_pause = 0;
}
static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
{
struct tg3 *tp = netdev_priv(dev);
int err = 0;
if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
return -EAGAIN;
if (epause->autoneg) {
u32 newadv;
struct phy_device *phydev;
phydev = tp->mdio_bus->phy_map[PHY_ADDR];
if (epause->rx_pause) {
if (epause->tx_pause)
newadv = ADVERTISED_Pause;
else
newadv = ADVERTISED_Pause |
ADVERTISED_Asym_Pause;
} else if (epause->tx_pause) {
newadv = ADVERTISED_Asym_Pause;
} else
newadv = 0;
if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) {
u32 oldadv = phydev->advertising &
(ADVERTISED_Pause |
ADVERTISED_Asym_Pause);
if (oldadv != newadv) {
phydev->advertising &=
~(ADVERTISED_Pause |
ADVERTISED_Asym_Pause);
phydev->advertising |= newadv;
err = phy_start_aneg(phydev);
}
} else {
tp->link_config.advertising &=
~(ADVERTISED_Pause |
ADVERTISED_Asym_Pause);
tp->link_config.advertising |= newadv;
}
} else {
if (epause->rx_pause)
tp->link_config.flowctrl |= FLOW_CTRL_RX;
else
tp->link_config.flowctrl &= ~FLOW_CTRL_RX;
if (epause->tx_pause)
tp->link_config.flowctrl |= FLOW_CTRL_TX;
else
tp->link_config.flowctrl &= ~FLOW_CTRL_TX;
if (netif_running(dev))
tg3_setup_flow_control(tp, 0, 0);
}
} else {
int irq_sync = 0;
if (netif_running(dev)) {
tg3_netif_stop(tp);
irq_sync = 1;
}
tg3_full_lock(tp, irq_sync);
if (epause->autoneg)
tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
else
tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
if (epause->rx_pause)
tp->link_config.flowctrl |= FLOW_CTRL_RX;
else
tp->link_config.flowctrl &= ~FLOW_CTRL_RX;
if (epause->tx_pause)
tp->link_config.flowctrl |= FLOW_CTRL_TX;
else
tp->link_config.flowctrl &= ~FLOW_CTRL_TX;
if (netif_running(dev)) {
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
err = tg3_restart_hw(tp, 1);
if (!err)
tg3_netif_start(tp);
}
tg3_full_unlock(tp);
}
return err;
}
static u32 tg3_get_rx_csum(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
return (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0;
}
static int tg3_set_rx_csum(struct net_device *dev, u32 data)
{
struct tg3 *tp = netdev_priv(dev);
if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
if (data != 0)
return -EINVAL;
return 0;
}
spin_lock_bh(&tp->lock);
if (data)
tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
else
tp->tg3_flags &= ~TG3_FLAG_RX_CHECKSUMS;
spin_unlock_bh(&tp->lock);
return 0;
}
static int tg3_set_tx_csum(struct net_device *dev, u32 data)
{
struct tg3 *tp = netdev_priv(dev);
if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
if (data != 0)
return -EINVAL;
return 0;
}
if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
ethtool_op_set_tx_ipv6_csum(dev, data);
else
ethtool_op_set_tx_csum(dev, data);
return 0;
}
static int tg3_get_sset_count (struct net_device *dev, int sset)
{
switch (sset) {
case ETH_SS_TEST:
return TG3_NUM_TEST;
case ETH_SS_STATS:
return TG3_NUM_STATS;
default:
return -EOPNOTSUPP;
}
}
static void tg3_get_strings (struct net_device *dev, u32 stringset, u8 *buf)
{
switch (stringset) {
case ETH_SS_STATS:
memcpy(buf, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
break;
case ETH_SS_TEST:
memcpy(buf, &ethtool_test_keys, sizeof(ethtool_test_keys));
break;
default:
WARN_ON(1); /* we need a WARN() */
break;
}
}
static int tg3_phys_id(struct net_device *dev, u32 data)
{
struct tg3 *tp = netdev_priv(dev);
int i;
if (!netif_running(tp->dev))
return -EAGAIN;
if (data == 0)
data = UINT_MAX / 2;
for (i = 0; i < (data * 2); i++) {
if ((i % 2) == 0)
tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
LED_CTRL_1000MBPS_ON |
LED_CTRL_100MBPS_ON |
LED_CTRL_10MBPS_ON |
LED_CTRL_TRAFFIC_OVERRIDE |
LED_CTRL_TRAFFIC_BLINK |
LED_CTRL_TRAFFIC_LED);
else
tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
LED_CTRL_TRAFFIC_OVERRIDE);
if (msleep_interruptible(500))
break;
}
tw32(MAC_LED_CTRL, tp->led_ctrl);
return 0;
}
static void tg3_get_ethtool_stats (struct net_device *dev,
struct ethtool_stats *estats, u64 *tmp_stats)
{
struct tg3 *tp = netdev_priv(dev);
memcpy(tmp_stats, tg3_get_estats(tp), sizeof(tp->estats));
}
#define NVRAM_TEST_SIZE 0x100
#define NVRAM_SELFBOOT_FORMAT1_0_SIZE 0x14
#define NVRAM_SELFBOOT_FORMAT1_2_SIZE 0x18
#define NVRAM_SELFBOOT_FORMAT1_3_SIZE 0x1c
#define NVRAM_SELFBOOT_HW_SIZE 0x20
#define NVRAM_SELFBOOT_DATA_SIZE 0x1c
static int tg3_test_nvram(struct tg3 *tp)
{
u32 csum, magic;
__be32 *buf;
int i, j, k, err = 0, size;
if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
return 0;
if (tg3_nvram_read(tp, 0, &magic) != 0)
return -EIO;
if (magic == TG3_EEPROM_MAGIC)
size = NVRAM_TEST_SIZE;
else if ((magic & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW) {
if ((magic & TG3_EEPROM_SB_FORMAT_MASK) ==
TG3_EEPROM_SB_FORMAT_1) {
switch (magic & TG3_EEPROM_SB_REVISION_MASK) {
case TG3_EEPROM_SB_REVISION_0:
size = NVRAM_SELFBOOT_FORMAT1_0_SIZE;
break;
case TG3_EEPROM_SB_REVISION_2:
size = NVRAM_SELFBOOT_FORMAT1_2_SIZE;
break;
case TG3_EEPROM_SB_REVISION_3:
size = NVRAM_SELFBOOT_FORMAT1_3_SIZE;
break;
default:
return 0;
}
} else
return 0;
} else if ((magic & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
size = NVRAM_SELFBOOT_HW_SIZE;
else
return -EIO;
buf = kmalloc(size, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
err = -EIO;
for (i = 0, j = 0; i < size; i += 4, j++) {
err = tg3_nvram_read_be32(tp, i, &buf[j]);
if (err)
break;
}
if (i < size)
goto out;
/* Selfboot format */
magic = be32_to_cpu(buf[0]);
if ((magic & TG3_EEPROM_MAGIC_FW_MSK) ==
TG3_EEPROM_MAGIC_FW) {
u8 *buf8 = (u8 *) buf, csum8 = 0;
if ((magic & TG3_EEPROM_SB_REVISION_MASK) ==
TG3_EEPROM_SB_REVISION_2) {
/* For rev 2, the csum doesn't include the MBA. */
for (i = 0; i < TG3_EEPROM_SB_F1R2_MBA_OFF; i++)
csum8 += buf8[i];
for (i = TG3_EEPROM_SB_F1R2_MBA_OFF + 4; i < size; i++)
csum8 += buf8[i];
} else {
for (i = 0; i < size; i++)
csum8 += buf8[i];
}
if (csum8 == 0) {
err = 0;
goto out;
}
err = -EIO;
goto out;
}
if ((magic & TG3_EEPROM_MAGIC_HW_MSK) ==
TG3_EEPROM_MAGIC_HW) {
u8 data[NVRAM_SELFBOOT_DATA_SIZE];
u8 parity[NVRAM_SELFBOOT_DATA_SIZE];
u8 *buf8 = (u8 *) buf;
/* Separate the parity bits and the data bytes. */
for (i = 0, j = 0, k = 0; i < NVRAM_SELFBOOT_HW_SIZE; i++) {
if ((i == 0) || (i == 8)) {
int l;
u8 msk;
for (l = 0, msk = 0x80; l < 7; l++, msk >>= 1)
parity[k++] = buf8[i] & msk;
i++;
}
else if (i == 16) {
int l;
u8 msk;
for (l = 0, msk = 0x20; l < 6; l++, msk >>= 1)
parity[k++] = buf8[i] & msk;
i++;
for (l = 0, msk = 0x80; l < 8; l++, msk >>= 1)
parity[k++] = buf8[i] & msk;
i++;
}
data[j++] = buf8[i];
}
err = -EIO;
for (i = 0; i < NVRAM_SELFBOOT_DATA_SIZE; i++) {
u8 hw8 = hweight8(data[i]);
if ((hw8 & 0x1) && parity[i])
goto out;
else if (!(hw8 & 0x1) && !parity[i])
goto out;
}
err = 0;
goto out;
}
/* Bootstrap checksum at offset 0x10 */
csum = calc_crc((unsigned char *) buf, 0x10);
if (csum != be32_to_cpu(buf[0x10/4]))
goto out;
/* Manufacturing block starts at offset 0x74, checksum at 0xfc */
csum = calc_crc((unsigned char *) &buf[0x74/4], 0x88);
if (csum != be32_to_cpu(buf[0xfc/4]))
goto out;
err = 0;
out:
kfree(buf);
return err;
}
#define TG3_SERDES_TIMEOUT_SEC 2
#define TG3_COPPER_TIMEOUT_SEC 6
static int tg3_test_link(struct tg3 *tp)
{
int i, max;
if (!netif_running(tp->dev))
return -ENODEV;
if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
max = TG3_SERDES_TIMEOUT_SEC;
else
max = TG3_COPPER_TIMEOUT_SEC;
for (i = 0; i < max; i++) {
if (netif_carrier_ok(tp->dev))
return 0;
if (msleep_interruptible(1000))
break;
}
return -EIO;
}
/* Only test the commonly used registers */
static int tg3_test_registers(struct tg3 *tp)
{
int i, is_5705, is_5750;
u32 offset, read_mask, write_mask, val, save_val, read_val;
static struct {
u16 offset;
u16 flags;
#define TG3_FL_5705 0x1
#define TG3_FL_NOT_5705 0x2
#define TG3_FL_NOT_5788 0x4
#define TG3_FL_NOT_5750 0x8
u32 read_mask;
u32 write_mask;
} reg_tbl[] = {
/* MAC Control Registers */
{ MAC_MODE, TG3_FL_NOT_5705,
0x00000000, 0x00ef6f8c },
{ MAC_MODE, TG3_FL_5705,
0x00000000, 0x01ef6b8c },
{ MAC_STATUS, TG3_FL_NOT_5705,
0x03800107, 0x00000000 },
{ MAC_STATUS, TG3_FL_5705,
0x03800100, 0x00000000 },
{ MAC_ADDR_0_HIGH, 0x0000,
0x00000000, 0x0000ffff },
{ MAC_ADDR_0_LOW, 0x0000,
0x00000000, 0xffffffff },
{ MAC_RX_MTU_SIZE, 0x0000,
0x00000000, 0x0000ffff },
{ MAC_TX_MODE, 0x0000,
0x00000000, 0x00000070 },
{ MAC_TX_LENGTHS, 0x0000,
0x00000000, 0x00003fff },
{ MAC_RX_MODE, TG3_FL_NOT_5705,
0x00000000, 0x000007fc },
{ MAC_RX_MODE, TG3_FL_5705,
0x00000000, 0x000007dc },
{ MAC_HASH_REG_0, 0x0000,
0x00000000, 0xffffffff },
{ MAC_HASH_REG_1, 0x0000,
0x00000000, 0xffffffff },
{ MAC_HASH_REG_2, 0x0000,
0x00000000, 0xffffffff },
{ MAC_HASH_REG_3, 0x0000,
0x00000000, 0xffffffff },
/* Receive Data and Receive BD Initiator Control Registers. */
{ RCVDBDI_JUMBO_BD+0, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ RCVDBDI_JUMBO_BD+4, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ RCVDBDI_JUMBO_BD+8, TG3_FL_NOT_5705,
0x00000000, 0x00000003 },
{ RCVDBDI_JUMBO_BD+0xc, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ RCVDBDI_STD_BD+0, 0x0000,
0x00000000, 0xffffffff },
{ RCVDBDI_STD_BD+4, 0x0000,
0x00000000, 0xffffffff },
{ RCVDBDI_STD_BD+8, 0x0000,
0x00000000, 0xffff0002 },
{ RCVDBDI_STD_BD+0xc, 0x0000,
0x00000000, 0xffffffff },
/* Receive BD Initiator Control Registers. */
{ RCVBDI_STD_THRESH, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ RCVBDI_STD_THRESH, TG3_FL_5705,
0x00000000, 0x000003ff },
{ RCVBDI_JUMBO_THRESH, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
/* Host Coalescing Control Registers. */
{ HOSTCC_MODE, TG3_FL_NOT_5705,
0x00000000, 0x00000004 },
{ HOSTCC_MODE, TG3_FL_5705,
0x00000000, 0x000000f6 },
{ HOSTCC_RXCOL_TICKS, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ HOSTCC_RXCOL_TICKS, TG3_FL_5705,
0x00000000, 0x000003ff },
{ HOSTCC_TXCOL_TICKS, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ HOSTCC_TXCOL_TICKS, TG3_FL_5705,
0x00000000, 0x000003ff },
{ HOSTCC_RXMAX_FRAMES, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ HOSTCC_RXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
0x00000000, 0x000000ff },
{ HOSTCC_TXMAX_FRAMES, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ HOSTCC_TXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
0x00000000, 0x000000ff },
{ HOSTCC_RXCOAL_TICK_INT, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ HOSTCC_TXCOAL_TICK_INT, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ HOSTCC_RXCOAL_MAXF_INT, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ HOSTCC_RXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
0x00000000, 0x000000ff },
{ HOSTCC_TXCOAL_MAXF_INT, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ HOSTCC_TXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
0x00000000, 0x000000ff },
{ HOSTCC_STAT_COAL_TICKS, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ HOSTCC_STATS_BLK_HOST_ADDR, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ HOSTCC_STATS_BLK_HOST_ADDR+4, TG3_FL_NOT_5705,
0x00000000, 0xffffffff },
{ HOSTCC_STATUS_BLK_HOST_ADDR, 0x0000,
0x00000000, 0xffffffff },
{ HOSTCC_STATUS_BLK_HOST_ADDR+4, 0x0000,
0x00000000, 0xffffffff },
{ HOSTCC_STATS_BLK_NIC_ADDR, 0x0000,
0xffffffff, 0x00000000 },
{ HOSTCC_STATUS_BLK_NIC_ADDR, 0x0000,
0xffffffff, 0x00000000 },
/* Buffer Manager Control Registers. */
{ BUFMGR_MB_POOL_ADDR, TG3_FL_NOT_5750,
0x00000000, 0x007fff80 },
{ BUFMGR_MB_POOL_SIZE, TG3_FL_NOT_5750,
0x00000000, 0x007fffff },
{ BUFMGR_MB_RDMA_LOW_WATER, 0x0000,
0x00000000, 0x0000003f },
{ BUFMGR_MB_MACRX_LOW_WATER, 0x0000,
0x00000000, 0x000001ff },
{ BUFMGR_MB_HIGH_WATER, 0x0000,
0x00000000, 0x000001ff },
{ BUFMGR_DMA_DESC_POOL_ADDR, TG3_FL_NOT_5705,
0xffffffff, 0x00000000 },
{ BUFMGR_DMA_DESC_POOL_SIZE, TG3_FL_NOT_5705,
0xffffffff, 0x00000000 },
/* Mailbox Registers */
{ GRCMBOX_RCVSTD_PROD_IDX+4, 0x0000,
0x00000000, 0x000001ff },
{ GRCMBOX_RCVJUMBO_PROD_IDX+4, TG3_FL_NOT_5705,
0x00000000, 0x000001ff },
{ GRCMBOX_RCVRET_CON_IDX_0+4, 0x0000,
0x00000000, 0x000007ff },
{ GRCMBOX_SNDHOST_PROD_IDX_0+4, 0x0000,
0x00000000, 0x000001ff },
{ 0xffff, 0x0000, 0x00000000, 0x00000000 },
};
is_5705 = is_5750 = 0;
if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
is_5705 = 1;
if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
is_5750 = 1;
}
for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
if (is_5705 && (reg_tbl[i].flags & TG3_FL_NOT_5705))
continue;
if (!is_5705 && (reg_tbl[i].flags & TG3_FL_5705))
continue;
if ((tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
(reg_tbl[i].flags & TG3_FL_NOT_5788))
continue;
if (is_5750 && (reg_tbl[i].flags & TG3_FL_NOT_5750))
continue;
offset = (u32) reg_tbl[i].offset;
read_mask = reg_tbl[i].read_mask;
write_mask = reg_tbl[i].write_mask;
/* Save the original register content */
save_val = tr32(offset);
/* Determine the read-only value. */
read_val = save_val & read_mask;
/* Write zero to the register, then make sure the read-only bits
* are not changed and the read/write bits are all zeros.
*/
tw32(offset, 0);
val = tr32(offset);
/* Test the read-only and read/write bits. */
if (((val & read_mask) != read_val) || (val & write_mask))
goto out;
/* Write ones to all the bits defined by RdMask and WrMask, then
* make sure the read-only bits are not changed and the
* read/write bits are all ones.
*/
tw32(offset, read_mask | write_mask);
val = tr32(offset);
/* Test the read-only bits. */
if ((val & read_mask) != read_val)
goto out;
/* Test the read/write bits. */
if ((val & write_mask) != write_mask)
goto out;
tw32(offset, save_val);
}
return 0;
out:
if (netif_msg_hw(tp))
printk(KERN_ERR PFX "Register test failed at offset %x\n",
offset);
tw32(offset, save_val);
return -EIO;
}
static int tg3_do_mem_test(struct tg3 *tp, u32 offset, u32 len)
{
static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0xaa55a55a };
int i;
u32 j;
for (i = 0; i < ARRAY_SIZE(test_pattern); i++) {
for (j = 0; j < len; j += 4) {
u32 val;
tg3_write_mem(tp, offset + j, test_pattern[i]);
tg3_read_mem(tp, offset + j, &val);
if (val != test_pattern[i])
return -EIO;
}
}
return 0;
}
static int tg3_test_memory(struct tg3 *tp)
{
static struct mem_entry {
u32 offset;
u32 len;
} mem_tbl_570x[] = {
{ 0x00000000, 0x00b50},
{ 0x00002000, 0x1c000},
{ 0xffffffff, 0x00000}
}, mem_tbl_5705[] = {
{ 0x00000100, 0x0000c},
{ 0x00000200, 0x00008},
{ 0x00004000, 0x00800},
{ 0x00006000, 0x01000},
{ 0x00008000, 0x02000},
{ 0x00010000, 0x0e000},
{ 0xffffffff, 0x00000}
}, mem_tbl_5755[] = {
{ 0x00000200, 0x00008},
{ 0x00004000, 0x00800},
{ 0x00006000, 0x00800},
{ 0x00008000, 0x02000},
{ 0x00010000, 0x0c000},
{ 0xffffffff, 0x00000}
}, mem_tbl_5906[] = {
{ 0x00000200, 0x00008},
{ 0x00004000, 0x00400},
{ 0x00006000, 0x00400},
{ 0x00008000, 0x01000},
{ 0x00010000, 0x01000},
{ 0xffffffff, 0x00000}
};
struct mem_entry *mem_tbl;
int err = 0;
int i;
if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
mem_tbl = mem_tbl_5755;
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
mem_tbl = mem_tbl_5906;
else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
mem_tbl = mem_tbl_5705;
else
mem_tbl = mem_tbl_570x;
for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
if ((err = tg3_do_mem_test(tp, mem_tbl[i].offset,
mem_tbl[i].len)) != 0)
break;
}
return err;
}
#define TG3_MAC_LOOPBACK 0
#define TG3_PHY_LOOPBACK 1
static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
{
u32 mac_mode, rx_start_idx, rx_idx, tx_idx, opaque_key;
u32 desc_idx;
struct sk_buff *skb, *rx_skb;
u8 *tx_data;
dma_addr_t map;
int num_pkts, tx_len, rx_len, i, err;
struct tg3_rx_buffer_desc *desc;
if (loopback_mode == TG3_MAC_LOOPBACK) {
/* HW errata - mac loopback fails in some cases on 5780.
* Normal traffic and PHY loopback are not affected by
* errata.
*/
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)
return 0;
mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) |
MAC_MODE_PORT_INT_LPBACK;
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
mac_mode |= MAC_MODE_LINK_POLARITY;
if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
mac_mode |= MAC_MODE_PORT_MODE_MII;
else
mac_mode |= MAC_MODE_PORT_MODE_GMII;
tw32(MAC_MODE, mac_mode);
} else if (loopback_mode == TG3_PHY_LOOPBACK) {
u32 val;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
u32 phytest;
if (!tg3_readphy(tp, MII_TG3_EPHY_TEST, &phytest)) {
u32 phy;
tg3_writephy(tp, MII_TG3_EPHY_TEST,
phytest | MII_TG3_EPHY_SHADOW_EN);
if (!tg3_readphy(tp, 0x1b, &phy))
tg3_writephy(tp, 0x1b, phy & ~0x20);
tg3_writephy(tp, MII_TG3_EPHY_TEST, phytest);
}
val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED100;
} else
val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED1000;
tg3_phy_toggle_automdix(tp, 0);
tg3_writephy(tp, MII_BMCR, val);
udelay(40);
mac_mode = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
tg3_writephy(tp, MII_TG3_EPHY_PTEST, 0x1800);
mac_mode |= MAC_MODE_PORT_MODE_MII;
} else
mac_mode |= MAC_MODE_PORT_MODE_GMII;
/* reset to prevent losing 1st rx packet intermittently */
if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
tw32_f(MAC_RX_MODE, RX_MODE_RESET);
udelay(10);
tw32_f(MAC_RX_MODE, tp->rx_mode);
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401)
mac_mode &= ~MAC_MODE_LINK_POLARITY;
else if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5411)
mac_mode |= MAC_MODE_LINK_POLARITY;
tg3_writephy(tp, MII_TG3_EXT_CTRL,
MII_TG3_EXT_CTRL_LNK3_LED_MODE);
}
tw32(MAC_MODE, mac_mode);
}
else
return -EINVAL;
err = -EIO;
tx_len = 1514;
skb = netdev_alloc_skb(tp->dev, tx_len);
if (!skb)
return -ENOMEM;
tx_data = skb_put(skb, tx_len);
memcpy(tx_data, tp->dev->dev_addr, 6);
memset(tx_data + 6, 0x0, 8);
tw32(MAC_RX_MTU_SIZE, tx_len + 4);
for (i = 14; i < tx_len; i++)
tx_data[i] = (u8) (i & 0xff);
map = pci_map_single(tp->pdev, skb->data, tx_len, PCI_DMA_TODEVICE);
tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
HOSTCC_MODE_NOW);
udelay(10);
rx_start_idx = tp->hw_status->idx[0].rx_producer;
num_pkts = 0;
tg3_set_txd(tp, tp->tx_prod, map, tx_len, 0, 1);
tp->tx_prod++;
num_pkts++;
tw32_tx_mbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW,
tp->tx_prod);
tr32_mailbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW);
udelay(10);
/* 250 usec to allow enough time on some 10/100 Mbps devices. */
for (i = 0; i < 25; i++) {
tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
HOSTCC_MODE_NOW);
udelay(10);
tx_idx = tp->hw_status->idx[0].tx_consumer;
rx_idx = tp->hw_status->idx[0].rx_producer;
if ((tx_idx == tp->tx_prod) &&
(rx_idx == (rx_start_idx + num_pkts)))
break;
}
pci_unmap_single(tp->pdev, map, tx_len, PCI_DMA_TODEVICE);
dev_kfree_skb(skb);
if (tx_idx != tp->tx_prod)
goto out;
if (rx_idx != rx_start_idx + num_pkts)
goto out;
desc = &tp->rx_rcb[rx_start_idx];
desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
if (opaque_key != RXD_OPAQUE_RING_STD)
goto out;
if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
(desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII))
goto out;
rx_len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) - 4;
if (rx_len != tx_len)
goto out;
rx_skb = tp->rx_std_buffers[desc_idx].skb;
map = pci_unmap_addr(&tp->rx_std_buffers[desc_idx], mapping);
pci_dma_sync_single_for_cpu(tp->pdev, map, rx_len, PCI_DMA_FROMDEVICE);
for (i = 14; i < tx_len; i++) {
if (*(rx_skb->data + i) != (u8) (i & 0xff))
goto out;
}
err = 0;
/* tg3_free_rings will unmap and free the rx_skb */
out:
return err;
}
#define TG3_MAC_LOOPBACK_FAILED 1
#define TG3_PHY_LOOPBACK_FAILED 2
#define TG3_LOOPBACK_FAILED (TG3_MAC_LOOPBACK_FAILED | \
TG3_PHY_LOOPBACK_FAILED)
static int tg3_test_loopback(struct tg3 *tp)
{
int err = 0;
u32 cpmuctrl = 0;
if (!netif_running(tp->dev))
return TG3_LOOPBACK_FAILED;
err = tg3_reset_hw(tp, 1);
if (err)
return TG3_LOOPBACK_FAILED;
/* Turn off gphy autopowerdown. */
if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
tg3_phy_toggle_apd(tp, false);
if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
int i;
u32 status;
tw32(TG3_CPMU_MUTEX_REQ, CPMU_MUTEX_REQ_DRIVER);
/* Wait for up to 40 microseconds to acquire lock. */
for (i = 0; i < 4; i++) {
status = tr32(TG3_CPMU_MUTEX_GNT);
if (status == CPMU_MUTEX_GNT_DRIVER)
break;
udelay(10);
}
if (status != CPMU_MUTEX_GNT_DRIVER)
return TG3_LOOPBACK_FAILED;
/* Turn off link-based power management. */
cpmuctrl = tr32(TG3_CPMU_CTRL);
tw32(TG3_CPMU_CTRL,
cpmuctrl & ~(CPMU_CTRL_LINK_SPEED_MODE |
CPMU_CTRL_LINK_AWARE_MODE));
}
if (tg3_run_loopback(tp, TG3_MAC_LOOPBACK))
err |= TG3_MAC_LOOPBACK_FAILED;
if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
tw32(TG3_CPMU_CTRL, cpmuctrl);
/* Release the mutex */
tw32(TG3_CPMU_MUTEX_GNT, CPMU_MUTEX_GNT_DRIVER);
}
if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
if (tg3_run_loopback(tp, TG3_PHY_LOOPBACK))
err |= TG3_PHY_LOOPBACK_FAILED;
}
/* Re-enable gphy autopowerdown. */
if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
tg3_phy_toggle_apd(tp, true);
return err;
}
static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
u64 *data)
{
struct tg3 *tp = netdev_priv(dev);
if (tp->link_config.phy_is_low_power)
tg3_set_power_state(tp, PCI_D0);
memset(data, 0, sizeof(u64) * TG3_NUM_TEST);
if (tg3_test_nvram(tp) != 0) {
etest->flags |= ETH_TEST_FL_FAILED;
data[0] = 1;
}
if (tg3_test_link(tp) != 0) {
etest->flags |= ETH_TEST_FL_FAILED;
data[1] = 1;
}
if (etest->flags & ETH_TEST_FL_OFFLINE) {
int err, err2 = 0, irq_sync = 0;
if (netif_running(dev)) {
tg3_phy_stop(tp);
tg3_netif_stop(tp);
irq_sync = 1;
}
tg3_full_lock(tp, irq_sync);
tg3_halt(tp, RESET_KIND_SUSPEND, 1);
err = tg3_nvram_lock(tp);
tg3_halt_cpu(tp, RX_CPU_BASE);
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
tg3_halt_cpu(tp, TX_CPU_BASE);
if (!err)
tg3_nvram_unlock(tp);
if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
tg3_phy_reset(tp);
if (tg3_test_registers(tp) != 0) {
etest->flags |= ETH_TEST_FL_FAILED;
data[2] = 1;
}
if (tg3_test_memory(tp) != 0) {
etest->flags |= ETH_TEST_FL_FAILED;
data[3] = 1;
}
if ((data[4] = tg3_test_loopback(tp)) != 0)
etest->flags |= ETH_TEST_FL_FAILED;
tg3_full_unlock(tp);
if (tg3_test_interrupt(tp) != 0) {
etest->flags |= ETH_TEST_FL_FAILED;
data[5] = 1;
}
tg3_full_lock(tp, 0);
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
if (netif_running(dev)) {
tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
err2 = tg3_restart_hw(tp, 1);
if (!err2)
tg3_netif_start(tp);
}
tg3_full_unlock(tp);
if (irq_sync && !err2)
tg3_phy_start(tp);
}
if (tp->link_config.phy_is_low_power)
tg3_set_power_state(tp, PCI_D3hot);
}
static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct mii_ioctl_data *data = if_mii(ifr);
struct tg3 *tp = netdev_priv(dev);
int err;
if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
return -EAGAIN;
return phy_mii_ioctl(tp->mdio_bus->phy_map[PHY_ADDR], data, cmd);
}
switch(cmd) {
case SIOCGMIIPHY:
data->phy_id = PHY_ADDR;
/* fallthru */
case SIOCGMIIREG: {
u32 mii_regval;
if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
break; /* We have no PHY */
if (tp->link_config.phy_is_low_power)
return -EAGAIN;
spin_lock_bh(&tp->lock);
err = tg3_readphy(tp, data->reg_num & 0x1f, &mii_regval);
spin_unlock_bh(&tp->lock);
data->val_out = mii_regval;
return err;
}
case SIOCSMIIREG:
if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
break; /* We have no PHY */
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (tp->link_config.phy_is_low_power)
return -EAGAIN;
spin_lock_bh(&tp->lock);
err = tg3_writephy(tp, data->reg_num & 0x1f, data->val_in);
spin_unlock_bh(&tp->lock);
return err;
default:
/* do nothing */
break;
}
return -EOPNOTSUPP;
}
#if TG3_VLAN_TAG_USED
static void tg3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
{
struct tg3 *tp = netdev_priv(dev);
if (!netif_running(dev)) {
tp->vlgrp = grp;
return;
}
tg3_netif_stop(tp);
tg3_full_lock(tp, 0);
tp->vlgrp = grp;
/* Update RX_MODE_KEEP_VLAN_TAG bit in RX_MODE register. */
__tg3_set_rx_mode(dev);
tg3_netif_start(tp);
tg3_full_unlock(tp);
}
#endif
static int tg3_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
{
struct tg3 *tp = netdev_priv(dev);
memcpy(ec, &tp->coal, sizeof(*ec));
return 0;
}
static int tg3_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
{
struct tg3 *tp = netdev_priv(dev);
u32 max_rxcoal_tick_int = 0, max_txcoal_tick_int = 0;
u32 max_stat_coal_ticks = 0, min_stat_coal_ticks = 0;
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
max_rxcoal_tick_int = MAX_RXCOAL_TICK_INT;
max_txcoal_tick_int = MAX_TXCOAL_TICK_INT;
max_stat_coal_ticks = MAX_STAT_COAL_TICKS;
min_stat_coal_ticks = MIN_STAT_COAL_TICKS;
}
if ((ec->rx_coalesce_usecs > MAX_RXCOL_TICKS) ||
(ec->tx_coalesce_usecs > MAX_TXCOL_TICKS) ||
(ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) ||
(ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) ||
(ec->rx_coalesce_usecs_irq > max_rxcoal_tick_int) ||
(ec->tx_coalesce_usecs_irq > max_txcoal_tick_int) ||
(ec->rx_max_coalesced_frames_irq > MAX_RXCOAL_MAXF_INT) ||
(ec->tx_max_coalesced_frames_irq > MAX_TXCOAL_MAXF_INT) ||
(ec->stats_block_coalesce_usecs > max_stat_coal_ticks) ||
(ec->stats_block_coalesce_usecs < min_stat_coal_ticks))
return -EINVAL;
/* No rx interrupts will be generated if both are zero */
if ((ec->rx_coalesce_usecs == 0) &&
(ec->rx_max_coalesced_frames == 0))
return -EINVAL;
/* No tx interrupts will be generated if both are zero */
if ((ec->tx_coalesce_usecs == 0) &&
(ec->tx_max_coalesced_frames == 0))
return -EINVAL;
/* Only copy relevant parameters, ignore all others. */
tp->coal.rx_coalesce_usecs = ec->rx_coalesce_usecs;
tp->coal.tx_coalesce_usecs = ec->tx_coalesce_usecs;
tp->coal.rx_max_coalesced_frames = ec->rx_max_coalesced_frames;
tp->coal.tx_max_coalesced_frames = ec->tx_max_coalesced_frames;
tp->coal.rx_coalesce_usecs_irq = ec->rx_coalesce_usecs_irq;
tp->coal.tx_coalesce_usecs_irq = ec->tx_coalesce_usecs_irq;
tp->coal.rx_max_coalesced_frames_irq = ec->rx_max_coalesced_frames_irq;
tp->coal.tx_max_coalesced_frames_irq = ec->tx_max_coalesced_frames_irq;
tp->coal.stats_block_coalesce_usecs = ec->stats_block_coalesce_usecs;
if (netif_running(dev)) {
tg3_full_lock(tp, 0);
__tg3_set_coalesce(tp, &tp->coal);
tg3_full_unlock(tp);
}
return 0;
}
static const struct ethtool_ops tg3_ethtool_ops = {
.get_settings = tg3_get_settings,
.set_settings = tg3_set_settings,
.get_drvinfo = tg3_get_drvinfo,
.get_regs_len = tg3_get_regs_len,
.get_regs = tg3_get_regs,
.get_wol = tg3_get_wol,
.set_wol = tg3_set_wol,
.get_msglevel = tg3_get_msglevel,
.set_msglevel = tg3_set_msglevel,
.nway_reset = tg3_nway_reset,
.get_link = ethtool_op_get_link,
.get_eeprom_len = tg3_get_eeprom_len,
.get_eeprom = tg3_get_eeprom,
.set_eeprom = tg3_set_eeprom,
.get_ringparam = tg3_get_ringparam,
.set_ringparam = tg3_set_ringparam,
.get_pauseparam = tg3_get_pauseparam,
.set_pauseparam = tg3_set_pauseparam,
.get_rx_csum = tg3_get_rx_csum,
.set_rx_csum = tg3_set_rx_csum,
.set_tx_csum = tg3_set_tx_csum,
.set_sg = ethtool_op_set_sg,
.set_tso = tg3_set_tso,
.self_test = tg3_self_test,
.get_strings = tg3_get_strings,
.phys_id = tg3_phys_id,
.get_ethtool_stats = tg3_get_ethtool_stats,
.get_coalesce = tg3_get_coalesce,
.set_coalesce = tg3_set_coalesce,
.get_sset_count = tg3_get_sset_count,
};
static void __devinit tg3_get_eeprom_size(struct tg3 *tp)
{
u32 cursize, val, magic;
tp->nvram_size = EEPROM_CHIP_SIZE;
if (tg3_nvram_read(tp, 0, &magic) != 0)
return;
if ((magic != TG3_EEPROM_MAGIC) &&
((magic & TG3_EEPROM_MAGIC_FW_MSK) != TG3_EEPROM_MAGIC_FW) &&
((magic & TG3_EEPROM_MAGIC_HW_MSK) != TG3_EEPROM_MAGIC_HW))
return;
/*
* Size the chip by reading offsets at increasing powers of two.
* When we encounter our validation signature, we know the addressing
* has wrapped around, and thus have our chip size.
*/
cursize = 0x10;
while (cursize < tp->nvram_size) {
if (tg3_nvram_read(tp, cursize, &val) != 0)
return;
if (val == magic)
break;
cursize <<= 1;
}
tp->nvram_size = cursize;
}
static void __devinit tg3_get_nvram_size(struct tg3 *tp)
{
u32 val;
if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
tg3_nvram_read(tp, 0, &val) != 0)
return;
/* Selfboot format */
if (val != TG3_EEPROM_MAGIC) {
tg3_get_eeprom_size(tp);
return;
}
if (tg3_nvram_read(tp, 0xf0, &val) == 0) {
if (val != 0) {
/* This is confusing. We want to operate on the
* 16-bit value at offset 0xf2. The tg3_nvram_read()
* call will read from NVRAM and byteswap the data
* according to the byteswapping settings for all
* other register accesses. This ensures the data we
* want will always reside in the lower 16-bits.
* However, the data in NVRAM is in LE format, which
* means the data from the NVRAM read will always be
* opposite the endianness of the CPU. The 16-bit
* byteswap then brings the data to CPU endianness.
*/
tp->nvram_size = swab16((u16)(val & 0x0000ffff)) * 1024;
return;
}
}
tp->nvram_size = TG3_NVRAM_SIZE_512KB;
}
static void __devinit tg3_get_nvram_info(struct tg3 *tp)
{
u32 nvcfg1;
nvcfg1 = tr32(NVRAM_CFG1);
if (nvcfg1 & NVRAM_CFG1_FLASHIF_ENAB) {
tp->tg3_flags2 |= TG3_FLG2_FLASH;
}
else {
nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
tw32(NVRAM_CFG1, nvcfg1);
}
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) ||
(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
switch (nvcfg1 & NVRAM_CFG1_VENDOR_MASK) {
case FLASH_VENDOR_ATMEL_FLASH_BUFFERED:
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
break;
case FLASH_VENDOR_ATMEL_FLASH_UNBUFFERED:
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->nvram_pagesize = ATMEL_AT25F512_PAGE_SIZE;
break;
case FLASH_VENDOR_ATMEL_EEPROM:
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
break;
case FLASH_VENDOR_ST:
tp->nvram_jedecnum = JEDEC_ST;
tp->nvram_pagesize = ST_M45PEX0_PAGE_SIZE;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
break;
case FLASH_VENDOR_SAIFUN:
tp->nvram_jedecnum = JEDEC_SAIFUN;
tp->nvram_pagesize = SAIFUN_SA25F0XX_PAGE_SIZE;
break;
case FLASH_VENDOR_SST_SMALL:
case FLASH_VENDOR_SST_LARGE:
tp->nvram_jedecnum = JEDEC_SST;
tp->nvram_pagesize = SST_25VF0X0_PAGE_SIZE;
break;
}
}
else {
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
}
}
static void __devinit tg3_get_5752_nvram_info(struct tg3 *tp)
{
u32 nvcfg1;
nvcfg1 = tr32(NVRAM_CFG1);
/* NVRAM protection for TPM */
if (nvcfg1 & (1 << 27))
tp->tg3_flags2 |= TG3_FLG2_PROTECTED_NVRAM;
switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
case FLASH_5752VENDOR_ATMEL_EEPROM_64KHZ:
case FLASH_5752VENDOR_ATMEL_EEPROM_376KHZ:
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
break;
case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->tg3_flags2 |= TG3_FLG2_FLASH;
break;
case FLASH_5752VENDOR_ST_M45PE10:
case FLASH_5752VENDOR_ST_M45PE20:
case FLASH_5752VENDOR_ST_M45PE40:
tp->nvram_jedecnum = JEDEC_ST;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->tg3_flags2 |= TG3_FLG2_FLASH;
break;
}
if (tp->tg3_flags2 & TG3_FLG2_FLASH) {
switch (nvcfg1 & NVRAM_CFG1_5752PAGE_SIZE_MASK) {
case FLASH_5752PAGE_SIZE_256:
tp->nvram_pagesize = 256;
break;
case FLASH_5752PAGE_SIZE_512:
tp->nvram_pagesize = 512;
break;
case FLASH_5752PAGE_SIZE_1K:
tp->nvram_pagesize = 1024;
break;
case FLASH_5752PAGE_SIZE_2K:
tp->nvram_pagesize = 2048;
break;
case FLASH_5752PAGE_SIZE_4K:
tp->nvram_pagesize = 4096;
break;
case FLASH_5752PAGE_SIZE_264:
tp->nvram_pagesize = 264;
break;
}
}
else {
/* For eeprom, set pagesize to maximum eeprom size */
tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
tw32(NVRAM_CFG1, nvcfg1);
}
}
static void __devinit tg3_get_5755_nvram_info(struct tg3 *tp)
{
u32 nvcfg1, protect = 0;
nvcfg1 = tr32(NVRAM_CFG1);
/* NVRAM protection for TPM */
if (nvcfg1 & (1 << 27)) {
tp->tg3_flags2 |= TG3_FLG2_PROTECTED_NVRAM;
protect = 1;
}
nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
switch (nvcfg1) {
case FLASH_5755VENDOR_ATMEL_FLASH_1:
case FLASH_5755VENDOR_ATMEL_FLASH_2:
case FLASH_5755VENDOR_ATMEL_FLASH_3:
case FLASH_5755VENDOR_ATMEL_FLASH_5:
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->tg3_flags2 |= TG3_FLG2_FLASH;
tp->nvram_pagesize = 264;
if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_1 ||
nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_5)
tp->nvram_size = (protect ? 0x3e200 :
TG3_NVRAM_SIZE_512KB);
else if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_2)
tp->nvram_size = (protect ? 0x1f200 :
TG3_NVRAM_SIZE_256KB);
else
tp->nvram_size = (protect ? 0x1f200 :
TG3_NVRAM_SIZE_128KB);
break;
case FLASH_5752VENDOR_ST_M45PE10:
case FLASH_5752VENDOR_ST_M45PE20:
case FLASH_5752VENDOR_ST_M45PE40:
tp->nvram_jedecnum = JEDEC_ST;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->tg3_flags2 |= TG3_FLG2_FLASH;
tp->nvram_pagesize = 256;
if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE10)
tp->nvram_size = (protect ?
TG3_NVRAM_SIZE_64KB :
TG3_NVRAM_SIZE_128KB);
else if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE20)
tp->nvram_size = (protect ?
TG3_NVRAM_SIZE_64KB :
TG3_NVRAM_SIZE_256KB);
else
tp->nvram_size = (protect ?
TG3_NVRAM_SIZE_128KB :
TG3_NVRAM_SIZE_512KB);
break;
}
}
static void __devinit tg3_get_5787_nvram_info(struct tg3 *tp)
{
u32 nvcfg1;
nvcfg1 = tr32(NVRAM_CFG1);
switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
case FLASH_5787VENDOR_ATMEL_EEPROM_64KHZ:
case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
case FLASH_5787VENDOR_MICRO_EEPROM_64KHZ:
case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
tw32(NVRAM_CFG1, nvcfg1);
break;
case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
case FLASH_5755VENDOR_ATMEL_FLASH_1:
case FLASH_5755VENDOR_ATMEL_FLASH_2:
case FLASH_5755VENDOR_ATMEL_FLASH_3:
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->tg3_flags2 |= TG3_FLG2_FLASH;
tp->nvram_pagesize = 264;
break;
case FLASH_5752VENDOR_ST_M45PE10:
case FLASH_5752VENDOR_ST_M45PE20:
case FLASH_5752VENDOR_ST_M45PE40:
tp->nvram_jedecnum = JEDEC_ST;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->tg3_flags2 |= TG3_FLG2_FLASH;
tp->nvram_pagesize = 256;
break;
}
}
static void __devinit tg3_get_5761_nvram_info(struct tg3 *tp)
{
u32 nvcfg1, protect = 0;
nvcfg1 = tr32(NVRAM_CFG1);
/* NVRAM protection for TPM */
if (nvcfg1 & (1 << 27)) {
tp->tg3_flags2 |= TG3_FLG2_PROTECTED_NVRAM;
protect = 1;
}
nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
switch (nvcfg1) {
case FLASH_5761VENDOR_ATMEL_ADB021D:
case FLASH_5761VENDOR_ATMEL_ADB041D:
case FLASH_5761VENDOR_ATMEL_ADB081D:
case FLASH_5761VENDOR_ATMEL_ADB161D:
case FLASH_5761VENDOR_ATMEL_MDB021D:
case FLASH_5761VENDOR_ATMEL_MDB041D:
case FLASH_5761VENDOR_ATMEL_MDB081D:
case FLASH_5761VENDOR_ATMEL_MDB161D:
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->tg3_flags2 |= TG3_FLG2_FLASH;
tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
tp->nvram_pagesize = 256;
break;
case FLASH_5761VENDOR_ST_A_M45PE20:
case FLASH_5761VENDOR_ST_A_M45PE40:
case FLASH_5761VENDOR_ST_A_M45PE80:
case FLASH_5761VENDOR_ST_A_M45PE16:
case FLASH_5761VENDOR_ST_M_M45PE20:
case FLASH_5761VENDOR_ST_M_M45PE40:
case FLASH_5761VENDOR_ST_M_M45PE80:
case FLASH_5761VENDOR_ST_M_M45PE16:
tp->nvram_jedecnum = JEDEC_ST;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->tg3_flags2 |= TG3_FLG2_FLASH;
tp->nvram_pagesize = 256;
break;
}
if (protect) {
tp->nvram_size = tr32(NVRAM_ADDR_LOCKOUT);
} else {
switch (nvcfg1) {
case FLASH_5761VENDOR_ATMEL_ADB161D:
case FLASH_5761VENDOR_ATMEL_MDB161D:
case FLASH_5761VENDOR_ST_A_M45PE16:
case FLASH_5761VENDOR_ST_M_M45PE16:
tp->nvram_size = TG3_NVRAM_SIZE_2MB;
break;
case FLASH_5761VENDOR_ATMEL_ADB081D:
case FLASH_5761VENDOR_ATMEL_MDB081D:
case FLASH_5761VENDOR_ST_A_M45PE80:
case FLASH_5761VENDOR_ST_M_M45PE80:
tp->nvram_size = TG3_NVRAM_SIZE_1MB;
break;
case FLASH_5761VENDOR_ATMEL_ADB041D:
case FLASH_5761VENDOR_ATMEL_MDB041D:
case FLASH_5761VENDOR_ST_A_M45PE40:
case FLASH_5761VENDOR_ST_M_M45PE40:
tp->nvram_size = TG3_NVRAM_SIZE_512KB;
break;
case FLASH_5761VENDOR_ATMEL_ADB021D:
case FLASH_5761VENDOR_ATMEL_MDB021D:
case FLASH_5761VENDOR_ST_A_M45PE20:
case FLASH_5761VENDOR_ST_M_M45PE20:
tp->nvram_size = TG3_NVRAM_SIZE_256KB;
break;
}
}
}
static void __devinit tg3_get_5906_nvram_info(struct tg3 *tp)
{
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
}
static void __devinit tg3_get_57780_nvram_info(struct tg3 *tp)
{
u32 nvcfg1;
nvcfg1 = tr32(NVRAM_CFG1);
switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
tw32(NVRAM_CFG1, nvcfg1);
return;
case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
case FLASH_57780VENDOR_ATMEL_AT45DB011D:
case FLASH_57780VENDOR_ATMEL_AT45DB011B:
case FLASH_57780VENDOR_ATMEL_AT45DB021D:
case FLASH_57780VENDOR_ATMEL_AT45DB021B:
case FLASH_57780VENDOR_ATMEL_AT45DB041D:
case FLASH_57780VENDOR_ATMEL_AT45DB041B:
tp->nvram_jedecnum = JEDEC_ATMEL;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->tg3_flags2 |= TG3_FLG2_FLASH;
switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
case FLASH_57780VENDOR_ATMEL_AT45DB011D:
case FLASH_57780VENDOR_ATMEL_AT45DB011B:
tp->nvram_size = TG3_NVRAM_SIZE_128KB;
break;
case FLASH_57780VENDOR_ATMEL_AT45DB021D:
case FLASH_57780VENDOR_ATMEL_AT45DB021B:
tp->nvram_size = TG3_NVRAM_SIZE_256KB;
break;
case FLASH_57780VENDOR_ATMEL_AT45DB041D:
case FLASH_57780VENDOR_ATMEL_AT45DB041B:
tp->nvram_size = TG3_NVRAM_SIZE_512KB;
break;
}
break;
case FLASH_5752VENDOR_ST_M45PE10:
case FLASH_5752VENDOR_ST_M45PE20:
case FLASH_5752VENDOR_ST_M45PE40:
tp->nvram_jedecnum = JEDEC_ST;
tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
tp->tg3_flags2 |= TG3_FLG2_FLASH;
switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
case FLASH_5752VENDOR_ST_M45PE10:
tp->nvram_size = TG3_NVRAM_SIZE_128KB;
break;
case FLASH_5752VENDOR_ST_M45PE20:
tp->nvram_size = TG3_NVRAM_SIZE_256KB;
break;
case FLASH_5752VENDOR_ST_M45PE40:
tp->nvram_size = TG3_NVRAM_SIZE_512KB;
break;
}
break;
default:
tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
return;
}
switch (nvcfg1 & NVRAM_CFG1_5752PAGE_SIZE_MASK) {
case FLASH_5752PAGE_SIZE_256:
tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
tp->nvram_pagesize = 256;
break;
case FLASH_5752PAGE_SIZE_512:
tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
tp->nvram_pagesize = 512;
break;
case FLASH_5752PAGE_SIZE_1K:
tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
tp->nvram_pagesize = 1024;
break;
case FLASH_5752PAGE_SIZE_2K:
tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
tp->nvram_pagesize = 2048;
break;
case FLASH_5752PAGE_SIZE_4K:
tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
tp->nvram_pagesize = 4096;
break;
case FLASH_5752PAGE_SIZE_264:
tp->nvram_pagesize = 264;
break;
case FLASH_5752PAGE_SIZE_528:
tp->nvram_pagesize = 528;
break;
}
}
/* Chips other than 5700/5701 use the NVRAM for fetching info. */
static void __devinit tg3_nvram_init(struct tg3 *tp)
{
tw32_f(GRC_EEPROM_ADDR,
(EEPROM_ADDR_FSM_RESET |
(EEPROM_DEFAULT_CLOCK_PERIOD <<
EEPROM_ADDR_CLKPERD_SHIFT)));
msleep(1);
/* Enable seeprom accesses. */
tw32_f(GRC_LOCAL_CTRL,
tr32(GRC_LOCAL_CTRL) | GRC_LCLCTRL_AUTO_SEEPROM);
udelay(100);
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
tp->tg3_flags |= TG3_FLAG_NVRAM;
if (tg3_nvram_lock(tp)) {
printk(KERN_WARNING PFX "%s: Cannot get nvarm lock, "
"tg3_nvram_init failed.\n", tp->dev->name);
return;
}
tg3_enable_nvram_access(tp);
tp->nvram_size = 0;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
tg3_get_5752_nvram_info(tp);
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
tg3_get_5755_nvram_info(tp);
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
tg3_get_5787_nvram_info(tp);
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
tg3_get_5761_nvram_info(tp);
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
tg3_get_5906_nvram_info(tp);
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
tg3_get_57780_nvram_info(tp);
else
tg3_get_nvram_info(tp);
if (tp->nvram_size == 0)
tg3_get_nvram_size(tp);
tg3_disable_nvram_access(tp);
tg3_nvram_unlock(tp);
} else {
tp->tg3_flags &= ~(TG3_FLAG_NVRAM | TG3_FLAG_NVRAM_BUFFERED);
tg3_get_eeprom_size(tp);
}
}
static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp,
u32 offset, u32 len, u8 *buf)
{
int i, j, rc = 0;
u32 val;
for (i = 0; i < len; i += 4) {
u32 addr;
__be32 data;
addr = offset + i;
memcpy(&data, buf + i, 4);
/*
* The SEEPROM interface expects the data to always be opposite
* the native endian format. We accomplish this by reversing
* all the operations that would have been performed on the
* data from a call to tg3_nvram_read_be32().
*/
tw32(GRC_EEPROM_DATA, swab32(be32_to_cpu(data)));
val = tr32(GRC_EEPROM_ADDR);
tw32(GRC_EEPROM_ADDR, val | EEPROM_ADDR_COMPLETE);
val &= ~(EEPROM_ADDR_ADDR_MASK | EEPROM_ADDR_DEVID_MASK |
EEPROM_ADDR_READ);
tw32(GRC_EEPROM_ADDR, val |
(0 << EEPROM_ADDR_DEVID_SHIFT) |
(addr & EEPROM_ADDR_ADDR_MASK) |
EEPROM_ADDR_START |
EEPROM_ADDR_WRITE);
for (j = 0; j < 1000; j++) {
val = tr32(GRC_EEPROM_ADDR);
if (val & EEPROM_ADDR_COMPLETE)
break;
msleep(1);
}
if (!(val & EEPROM_ADDR_COMPLETE)) {
rc = -EBUSY;
break;
}
}
return rc;
}
/* offset and length are dword aligned */
static int tg3_nvram_write_block_unbuffered(struct tg3 *tp, u32 offset, u32 len,
u8 *buf)
{
int ret = 0;
u32 pagesize = tp->nvram_pagesize;
u32 pagemask = pagesize - 1;
u32 nvram_cmd;
u8 *tmp;
tmp = kmalloc(pagesize, GFP_KERNEL);
if (tmp == NULL)
return -ENOMEM;
while (len) {
int j;
u32 phy_addr, page_off, size;
phy_addr = offset & ~pagemask;
for (j = 0; j < pagesize; j += 4) {
ret = tg3_nvram_read_be32(tp, phy_addr + j,
(__be32 *) (tmp + j));
if (ret)
break;
}
if (ret)
break;
page_off = offset & pagemask;
size = pagesize;
if (len < size)
size = len;
len -= size;
memcpy(tmp + page_off, buf, size);
offset = offset + (pagesize - page_off);
tg3_enable_nvram_access(tp);
/*
* Before we can erase the flash page, we need
* to issue a special "write enable" command.
*/
nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
if (tg3_nvram_exec_cmd(tp, nvram_cmd))
break;
/* Erase the target page */
tw32(NVRAM_ADDR, phy_addr);
nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR |
NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_ERASE;
if (tg3_nvram_exec_cmd(tp, nvram_cmd))
break;
/* Issue another write enable to start the write. */
nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
if (tg3_nvram_exec_cmd(tp, nvram_cmd))
break;
for (j = 0; j < pagesize; j += 4) {
__be32 data;
data = *((__be32 *) (tmp + j));
tw32(NVRAM_WRDATA, be32_to_cpu(data));
tw32(NVRAM_ADDR, phy_addr + j);
nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE |
NVRAM_CMD_WR;
if (j == 0)
nvram_cmd |= NVRAM_CMD_FIRST;
else if (j == (pagesize - 4))
nvram_cmd |= NVRAM_CMD_LAST;
if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
break;
}
if (ret)
break;
}
nvram_cmd = NVRAM_CMD_WRDI | NVRAM_CMD_GO | NVRAM_CMD_DONE;
tg3_nvram_exec_cmd(tp, nvram_cmd);
kfree(tmp);
return ret;
}
/* offset and length are dword aligned */
static int tg3_nvram_write_block_buffered(struct tg3 *tp, u32 offset, u32 len,
u8 *buf)
{
int i, ret = 0;
for (i = 0; i < len; i += 4, offset += 4) {
u32 page_off, phy_addr, nvram_cmd;
__be32 data;
memcpy(&data, buf + i, 4);
tw32(NVRAM_WRDATA, be32_to_cpu(data));
page_off = offset % tp->nvram_pagesize;
phy_addr = tg3_nvram_phys_addr(tp, offset);
tw32(NVRAM_ADDR, phy_addr);
nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR;
if ((page_off == 0) || (i == 0))
nvram_cmd |= NVRAM_CMD_FIRST;
if (page_off == (tp->nvram_pagesize - 4))
nvram_cmd |= NVRAM_CMD_LAST;
if (i == (len - 4))
nvram_cmd |= NVRAM_CMD_LAST;
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5752 &&
!(tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
(tp->nvram_jedecnum == JEDEC_ST) &&
(nvram_cmd & NVRAM_CMD_FIRST)) {
if ((ret = tg3_nvram_exec_cmd(tp,
NVRAM_CMD_WREN | NVRAM_CMD_GO |
NVRAM_CMD_DONE)))
break;
}
if (!(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
/* We always do complete word writes to eeprom. */
nvram_cmd |= (NVRAM_CMD_FIRST | NVRAM_CMD_LAST);
}
if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
break;
}
return ret;
}
/* offset and length are dword aligned */
static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf)
{
int ret;
if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl &
~GRC_LCLCTRL_GPIO_OUTPUT1);
udelay(40);
}
if (!(tp->tg3_flags & TG3_FLAG_NVRAM)) {
ret = tg3_nvram_write_block_using_eeprom(tp, offset, len, buf);
}
else {
u32 grc_mode;
ret = tg3_nvram_lock(tp);
if (ret)
return ret;
tg3_enable_nvram_access(tp);
if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
!(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM))
tw32(NVRAM_WRITE1, 0x406);
grc_mode = tr32(GRC_MODE);
tw32(GRC_MODE, grc_mode | GRC_MODE_NVRAM_WR_ENABLE);
if ((tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) ||
!(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
ret = tg3_nvram_write_block_buffered(tp, offset, len,
buf);
}
else {
ret = tg3_nvram_write_block_unbuffered(tp, offset, len,
buf);
}
grc_mode = tr32(GRC_MODE);
tw32(GRC_MODE, grc_mode & ~GRC_MODE_NVRAM_WR_ENABLE);
tg3_disable_nvram_access(tp);
tg3_nvram_unlock(tp);
}
if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
udelay(40);
}
return ret;
}
struct subsys_tbl_ent {
u16 subsys_vendor, subsys_devid;
u32 phy_id;
};
static struct subsys_tbl_ent subsys_id_to_phy_id[] = {
/* Broadcom boards. */
{ PCI_VENDOR_ID_BROADCOM, 0x1644, PHY_ID_BCM5401 }, /* BCM95700A6 */
{ PCI_VENDOR_ID_BROADCOM, 0x0001, PHY_ID_BCM5701 }, /* BCM95701A5 */
{ PCI_VENDOR_ID_BROADCOM, 0x0002, PHY_ID_BCM8002 }, /* BCM95700T6 */
{ PCI_VENDOR_ID_BROADCOM, 0x0003, 0 }, /* BCM95700A9 */
{ PCI_VENDOR_ID_BROADCOM, 0x0005, PHY_ID_BCM5701 }, /* BCM95701T1 */
{ PCI_VENDOR_ID_BROADCOM, 0x0006, PHY_ID_BCM5701 }, /* BCM95701T8 */
{ PCI_VENDOR_ID_BROADCOM, 0x0007, 0 }, /* BCM95701A7 */
{ PCI_VENDOR_ID_BROADCOM, 0x0008, PHY_ID_BCM5701 }, /* BCM95701A10 */
{ PCI_VENDOR_ID_BROADCOM, 0x8008, PHY_ID_BCM5701 }, /* BCM95701A12 */
{ PCI_VENDOR_ID_BROADCOM, 0x0009, PHY_ID_BCM5703 }, /* BCM95703Ax1 */
{ PCI_VENDOR_ID_BROADCOM, 0x8009, PHY_ID_BCM5703 }, /* BCM95703Ax2 */
/* 3com boards. */
{ PCI_VENDOR_ID_3COM, 0x1000, PHY_ID_BCM5401 }, /* 3C996T */
{ PCI_VENDOR_ID_3COM, 0x1006, PHY_ID_BCM5701 }, /* 3C996BT */
{ PCI_VENDOR_ID_3COM, 0x1004, 0 }, /* 3C996SX */
{ PCI_VENDOR_ID_3COM, 0x1007, PHY_ID_BCM5701 }, /* 3C1000T */
{ PCI_VENDOR_ID_3COM, 0x1008, PHY_ID_BCM5701 }, /* 3C940BR01 */
/* DELL boards. */
{ PCI_VENDOR_ID_DELL, 0x00d1, PHY_ID_BCM5401 }, /* VIPER */
{ PCI_VENDOR_ID_DELL, 0x0106, PHY_ID_BCM5401 }, /* JAGUAR */
{ PCI_VENDOR_ID_DELL, 0x0109, PHY_ID_BCM5411 }, /* MERLOT */
{ PCI_VENDOR_ID_DELL, 0x010a, PHY_ID_BCM5411 }, /* SLIM_MERLOT */
/* Compaq boards. */
{ PCI_VENDOR_ID_COMPAQ, 0x007c, PHY_ID_BCM5701 }, /* BANSHEE */
{ PCI_VENDOR_ID_COMPAQ, 0x009a, PHY_ID_BCM5701 }, /* BANSHEE_2 */
{ PCI_VENDOR_ID_COMPAQ, 0x007d, 0 }, /* CHANGELING */
{ PCI_VENDOR_ID_COMPAQ, 0x0085, PHY_ID_BCM5701 }, /* NC7780 */
{ PCI_VENDOR_ID_COMPAQ, 0x0099, PHY_ID_BCM5701 }, /* NC7780_2 */
/* IBM boards. */
{ PCI_VENDOR_ID_IBM, 0x0281, 0 } /* IBM??? */
};
static inline struct subsys_tbl_ent *lookup_by_subsys(struct tg3 *tp)
{
int i;
for (i = 0; i < ARRAY_SIZE(subsys_id_to_phy_id); i++) {
if ((subsys_id_to_phy_id[i].subsys_vendor ==
tp->pdev->subsystem_vendor) &&
(subsys_id_to_phy_id[i].subsys_devid ==
tp->pdev->subsystem_device))
return &subsys_id_to_phy_id[i];
}
return NULL;
}
static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp)
{
u32 val;
u16 pmcsr;
/* On some early chips the SRAM cannot be accessed in D3hot state,
* so need make sure we're in D0.
*/
pci_read_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, &pmcsr);
pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
pci_write_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, pmcsr);
msleep(1);
/* Make sure register accesses (indirect or otherwise)
* will function correctly.
*/
pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
tp->misc_host_ctrl);
/* The memory arbiter has to be enabled in order for SRAM accesses
* to succeed. Normally on powerup the tg3 chip firmware will make
* sure it is enabled, but other entities such as system netboot
* code might disable it.
*/
val = tr32(MEMARB_MODE);
tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
tp->phy_id = PHY_ID_INVALID;
tp->led_ctrl = LED_CTRL_MODE_PHY_1;
/* Assume an onboard device and WOL capable by default. */
tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT | TG3_FLAG_WOL_CAP;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
if (!(tr32(PCIE_TRANSACTION_CFG) & PCIE_TRANS_CFG_LOM)) {
tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
}
val = tr32(VCPU_CFGSHDW);
if (val & VCPU_CFGSHDW_ASPM_DBNC)
tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
if ((val & VCPU_CFGSHDW_WOL_ENABLE) &&
(val & VCPU_CFGSHDW_WOL_MAGPKT))
tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
goto done;
}
tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
if (val == NIC_SRAM_DATA_SIG_MAGIC) {
u32 nic_cfg, led_cfg;
u32 nic_phy_id, ver, cfg2 = 0, cfg4 = 0, eeprom_phy_id;
int eeprom_phy_serdes = 0;
tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
tp->nic_sram_data_cfg = nic_cfg;
tg3_read_mem(tp, NIC_SRAM_DATA_VER, &ver);
ver >>= NIC_SRAM_DATA_VER_SHIFT;
if ((GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700) &&
(GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) &&
(GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5703) &&
(ver > 0) && (ver < 0x100))
tg3_read_mem(tp, NIC_SRAM_DATA_CFG_2, &cfg2);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
tg3_read_mem(tp, NIC_SRAM_DATA_CFG_4, &cfg4);
if ((nic_cfg & NIC_SRAM_DATA_CFG_PHY_TYPE_MASK) ==
NIC_SRAM_DATA_CFG_PHY_TYPE_FIBER)
eeprom_phy_serdes = 1;
tg3_read_mem(tp, NIC_SRAM_DATA_PHY_ID, &nic_phy_id);
if (nic_phy_id != 0) {
u32 id1 = nic_phy_id & NIC_SRAM_DATA_PHY_ID1_MASK;
u32 id2 = nic_phy_id & NIC_SRAM_DATA_PHY_ID2_MASK;
eeprom_phy_id = (id1 >> 16) << 10;
eeprom_phy_id |= (id2 & 0xfc00) << 16;
eeprom_phy_id |= (id2 & 0x03ff) << 0;
} else
eeprom_phy_id = 0;
tp->phy_id = eeprom_phy_id;
if (eeprom_phy_serdes) {
if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
tp->tg3_flags2 |= TG3_FLG2_MII_SERDES;
else
tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
}
if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
led_cfg = cfg2 & (NIC_SRAM_DATA_CFG_LED_MODE_MASK |
SHASTA_EXT_LED_MODE_MASK);
else
led_cfg = nic_cfg & NIC_SRAM_DATA_CFG_LED_MODE_MASK;
switch (led_cfg) {
default:
case NIC_SRAM_DATA_CFG_LED_MODE_PHY_1:
tp->led_ctrl = LED_CTRL_MODE_PHY_1;
break;
case NIC_SRAM_DATA_CFG_LED_MODE_PHY_2:
tp->led_ctrl = LED_CTRL_MODE_PHY_2;
break;
case NIC_SRAM_DATA_CFG_LED_MODE_MAC:
tp->led_ctrl = LED_CTRL_MODE_MAC;
/* Default to PHY_1_MODE if 0 (MAC_MODE) is
* read on some older 5700/5701 bootcode.
*/
if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) ==
ASIC_REV_5701)
tp->led_ctrl = LED_CTRL_MODE_PHY_1;
break;
case SHASTA_EXT_LED_SHARED:
tp->led_ctrl = LED_CTRL_MODE_SHARED;
if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
tp->pci_chip_rev_id != CHIPREV_ID_5750_A1)
tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
LED_CTRL_MODE_PHY_2);
break;
case SHASTA_EXT_LED_MAC:
tp->led_ctrl = LED_CTRL_MODE_SHASTA_MAC;
break;
case SHASTA_EXT_LED_COMBO:
tp->led_ctrl = LED_CTRL_MODE_COMBO;
if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0)
tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
LED_CTRL_MODE_PHY_2);
break;
}
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) &&
tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL)
tp->led_ctrl = LED_CTRL_MODE_PHY_2;
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX)
tp->led_ctrl = LED_CTRL_MODE_PHY_1;
if (nic_cfg & NIC_SRAM_DATA_CFG_EEPROM_WP) {
tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT;
if ((tp->pdev->subsystem_vendor ==
PCI_VENDOR_ID_ARIMA) &&
(tp->pdev->subsystem_device == 0x205a ||
tp->pdev->subsystem_device == 0x2063))
tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
} else {
tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
}
if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
}
if ((nic_cfg & NIC_SRAM_DATA_CFG_APE_ENABLE) &&
(tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
tp->tg3_flags3 |= TG3_FLG3_ENABLE_APE;
if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES &&
!(nic_cfg & NIC_SRAM_DATA_CFG_FIBER_WOL))
tp->tg3_flags &= ~TG3_FLAG_WOL_CAP;
if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
(nic_cfg & NIC_SRAM_DATA_CFG_WOL_ENABLE))
tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
if (cfg2 & (1 << 17))
tp->tg3_flags2 |= TG3_FLG2_CAPACITIVE_COUPLING;
/* serdes signal pre-emphasis in register 0x590 set by */
/* bootcode if bit 18 is set */
if (cfg2 & (1 << 18))
tp->tg3_flags2 |= TG3_FLG2_SERDES_PREEMPHASIS;
if (((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX)) &&
(cfg2 & NIC_SRAM_DATA_CFG_2_APD_EN))
tp->tg3_flags3 |= TG3_FLG3_PHY_ENABLE_APD;
if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
u32 cfg3;
tg3_read_mem(tp, NIC_SRAM_DATA_CFG_3, &cfg3);
if (cfg3 & NIC_SRAM_ASPM_DEBOUNCE)
tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
}
if (cfg4 & NIC_SRAM_RGMII_STD_IBND_DISABLE)
tp->tg3_flags3 |= TG3_FLG3_RGMII_STD_IBND_DISABLE;
if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_RX_EN)
tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_RX_EN;
if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_TX_EN)
tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_TX_EN;
}
done:
device_init_wakeup(&tp->pdev->dev, tp->tg3_flags & TG3_FLAG_WOL_CAP);
device_set_wakeup_enable(&tp->pdev->dev,
tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
}
static int __devinit tg3_issue_otp_command(struct tg3 *tp, u32 cmd)
{
int i;
u32 val;
tw32(OTP_CTRL, cmd | OTP_CTRL_OTP_CMD_START);
tw32(OTP_CTRL, cmd);
/* Wait for up to 1 ms for command to execute. */
for (i = 0; i < 100; i++) {
val = tr32(OTP_STATUS);
if (val & OTP_STATUS_CMD_DONE)
break;
udelay(10);
}
return (val & OTP_STATUS_CMD_DONE) ? 0 : -EBUSY;
}
/* Read the gphy configuration from the OTP region of the chip. The gphy
* configuration is a 32-bit value that straddles the alignment boundary.
* We do two 32-bit reads and then shift and merge the results.
*/
static u32 __devinit tg3_read_otp_phycfg(struct tg3 *tp)
{
u32 bhalf_otp, thalf_otp;
tw32(OTP_MODE, OTP_MODE_OTP_THRU_GRC);
if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_INIT))
return 0;
tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC1);
if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
return 0;
thalf_otp = tr32(OTP_READ_DATA);
tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC2);
if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
return 0;
bhalf_otp = tr32(OTP_READ_DATA);
return ((thalf_otp & 0x0000ffff) << 16) | (bhalf_otp >> 16);
}
static int __devinit tg3_phy_probe(struct tg3 *tp)
{
u32 hw_phy_id_1, hw_phy_id_2;
u32 hw_phy_id, hw_phy_id_masked;
int err;
if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
return tg3_phy_init(tp);
/* Reading the PHY ID register can conflict with ASF
* firmware access to the PHY hardware.
*/
err = 0;
if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
hw_phy_id = hw_phy_id_masked = PHY_ID_INVALID;
} else {
/* Now read the physical PHY_ID from the chip and verify
* that it is sane. If it doesn't look good, we fall back
* to either the hard-coded table based PHY_ID and failing
* that the value found in the eeprom area.
*/
err |= tg3_readphy(tp, MII_PHYSID1, &hw_phy_id_1);
err |= tg3_readphy(tp, MII_PHYSID2, &hw_phy_id_2);
hw_phy_id = (hw_phy_id_1 & 0xffff) << 10;
hw_phy_id |= (hw_phy_id_2 & 0xfc00) << 16;
hw_phy_id |= (hw_phy_id_2 & 0x03ff) << 0;
hw_phy_id_masked = hw_phy_id & PHY_ID_MASK;
}
if (!err && KNOWN_PHY_ID(hw_phy_id_masked)) {
tp->phy_id = hw_phy_id;
if (hw_phy_id_masked == PHY_ID_BCM8002)
tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
else
tp->tg3_flags2 &= ~TG3_FLG2_PHY_SERDES;
} else {
if (tp->phy_id != PHY_ID_INVALID) {
/* Do nothing, phy ID already set up in
* tg3_get_eeprom_hw_cfg().
*/
} else {
struct subsys_tbl_ent *p;
/* No eeprom signature? Try the hardcoded
* subsys device table.
*/
p = lookup_by_subsys(tp);
if (!p)
return -ENODEV;
tp->phy_id = p->phy_id;
if (!tp->phy_id ||
tp->phy_id == PHY_ID_BCM8002)
tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
}
}
if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) &&
!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) &&
!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
u32 bmsr, adv_reg, tg3_ctrl, mask;
tg3_readphy(tp, MII_BMSR, &bmsr);
if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
(bmsr & BMSR_LSTATUS))
goto skip_phy_reset;
err = tg3_phy_reset(tp);
if (err)
return err;
adv_reg = (ADVERTISE_10HALF | ADVERTISE_10FULL |
ADVERTISE_100HALF | ADVERTISE_100FULL |
ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
tg3_ctrl = 0;
if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
tg3_ctrl = (MII_TG3_CTRL_ADV_1000_HALF |
MII_TG3_CTRL_ADV_1000_FULL);
if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
tg3_ctrl |= (MII_TG3_CTRL_AS_MASTER |
MII_TG3_CTRL_ENABLE_AS_MASTER);
}
mask = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full);
if (!tg3_copper_is_advertising_all(tp, mask)) {
tg3_writephy(tp, MII_ADVERTISE, adv_reg);
if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
tg3_writephy(tp, MII_BMCR,
BMCR_ANENABLE | BMCR_ANRESTART);
}
tg3_phy_set_wirespeed(tp);
tg3_writephy(tp, MII_ADVERTISE, adv_reg);
if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
}
skip_phy_reset:
if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401) {
err = tg3_init_5401phy_dsp(tp);
if (err)
return err;
}
if (!err && ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401)) {
err = tg3_init_5401phy_dsp(tp);
}
if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
tp->link_config.advertising =
(ADVERTISED_1000baseT_Half |
ADVERTISED_1000baseT_Full |
ADVERTISED_Autoneg |
ADVERTISED_FIBRE);
if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
tp->link_config.advertising &=
~(ADVERTISED_1000baseT_Half |
ADVERTISED_1000baseT_Full);
return err;
}
static void __devinit tg3_read_partno(struct tg3 *tp)
{
unsigned char vpd_data[256]; /* in little-endian format */
unsigned int i;
u32 magic;
if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
tg3_nvram_read(tp, 0x0, &magic))
goto out_not_found;
if (magic == TG3_EEPROM_MAGIC) {
for (i = 0; i < 256; i += 4) {
u32 tmp;
/* The data is in little-endian format in NVRAM.
* Use the big-endian read routines to preserve
* the byte order as it exists in NVRAM.
*/
if (tg3_nvram_read_be32(tp, 0x100 + i, &tmp))
goto out_not_found;
memcpy(&vpd_data[i], &tmp, sizeof(tmp));
}
} else {
int vpd_cap;
vpd_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_VPD);
for (i = 0; i < 256; i += 4) {
u32 tmp, j = 0;
__le32 v;
u16 tmp16;
pci_write_config_word(tp->pdev, vpd_cap + PCI_VPD_ADDR,
i);
while (j++ < 100) {
pci_read_config_word(tp->pdev, vpd_cap +
PCI_VPD_ADDR, &tmp16);
if (tmp16 & 0x8000)
break;
msleep(1);
}
if (!(tmp16 & 0x8000))
goto out_not_found;
pci_read_config_dword(tp->pdev, vpd_cap + PCI_VPD_DATA,
&tmp);
v = cpu_to_le32(tmp);
memcpy(&vpd_data[i], &v, sizeof(v));
}
}
/* Now parse and find the part number. */
for (i = 0; i < 254; ) {
unsigned char val = vpd_data[i];
unsigned int block_end;
if (val == 0x82 || val == 0x91) {
i = (i + 3 +
(vpd_data[i + 1] +
(vpd_data[i + 2] << 8)));
continue;
}
if (val != 0x90)
goto out_not_found;
block_end = (i + 3 +
(vpd_data[i + 1] +
(vpd_data[i + 2] << 8)));
i += 3;
if (block_end > 256)
goto out_not_found;
while (i < (block_end - 2)) {
if (vpd_data[i + 0] == 'P' &&
vpd_data[i + 1] == 'N') {
int partno_len = vpd_data[i + 2];
i += 3;
if (partno_len > 24 || (partno_len + i) > 256)
goto out_not_found;
memcpy(tp->board_part_number,
&vpd_data[i], partno_len);
/* Success. */
return;
}
i += 3 + vpd_data[i + 2];
}
/* Part number not found. */
goto out_not_found;
}
out_not_found:
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
strcpy(tp->board_part_number, "BCM95906");
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
tp->pdev->device == TG3PCI_DEVICE_TIGON3_57780)
strcpy(tp->board_part_number, "BCM57780");
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
tp->pdev->device == TG3PCI_DEVICE_TIGON3_57760)
strcpy(tp->board_part_number, "BCM57760");
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790)
strcpy(tp->board_part_number, "BCM57790");
else
strcpy(tp->board_part_number, "none");
}
static int __devinit tg3_fw_img_is_valid(struct tg3 *tp, u32 offset)
{
u32 val;
if (tg3_nvram_read(tp, offset, &val) ||
(val & 0xfc000000) != 0x0c000000 ||
tg3_nvram_read(tp, offset + 4, &val) ||
val != 0)
return 0;
return 1;
}
static void __devinit tg3_read_bc_ver(struct tg3 *tp)
{
u32 val, offset, start, ver_offset;
int i;
bool newver = false;
if (tg3_nvram_read(tp, 0xc, &offset) ||
tg3_nvram_read(tp, 0x4, &start))
return;
offset = tg3_nvram_logical_addr(tp, offset);
if (tg3_nvram_read(tp, offset, &val))
return;
if ((val & 0xfc000000) == 0x0c000000) {
if (tg3_nvram_read(tp, offset + 4, &val))
return;
if (val == 0)
newver = true;
}
if (newver) {
if (tg3_nvram_read(tp, offset + 8, &ver_offset))
return;
offset = offset + ver_offset - start;
for (i = 0; i < 16; i += 4) {
__be32 v;
if (tg3_nvram_read_be32(tp, offset + i, &v))
return;
memcpy(tp->fw_ver + i, &v, sizeof(v));
}
} else {
u32 major, minor;
if (tg3_nvram_read(tp, TG3_NVM_PTREV_BCVER, &ver_offset))
return;
major = (ver_offset & TG3_NVM_BCVER_MAJMSK) >>
TG3_NVM_BCVER_MAJSFT;
minor = ver_offset & TG3_NVM_BCVER_MINMSK;
snprintf(&tp->fw_ver[0], 32, "v%d.%02d", major, minor);
}
}
static void __devinit tg3_read_hwsb_ver(struct tg3 *tp)
{
u32 val, major, minor;
/* Use native endian representation */
if (tg3_nvram_read(tp, TG3_NVM_HWSB_CFG1, &val))
return;
major = (val & TG3_NVM_HWSB_CFG1_MAJMSK) >>
TG3_NVM_HWSB_CFG1_MAJSFT;
minor = (val & TG3_NVM_HWSB_CFG1_MINMSK) >>
TG3_NVM_HWSB_CFG1_MINSFT;
snprintf(&tp->fw_ver[0], 32, "sb v%d.%02d", major, minor);
}
static void __devinit tg3_read_sb_ver(struct tg3 *tp, u32 val)
{
u32 offset, major, minor, build;
tp->fw_ver[0] = 's';
tp->fw_ver[1] = 'b';
tp->fw_ver[2] = '\0';
if ((val & TG3_EEPROM_SB_FORMAT_MASK) != TG3_EEPROM_SB_FORMAT_1)
return;
switch (val & TG3_EEPROM_SB_REVISION_MASK) {
case TG3_EEPROM_SB_REVISION_0:
offset = TG3_EEPROM_SB_F1R0_EDH_OFF;
break;
case TG3_EEPROM_SB_REVISION_2:
offset = TG3_EEPROM_SB_F1R2_EDH_OFF;
break;
case TG3_EEPROM_SB_REVISION_3:
offset = TG3_EEPROM_SB_F1R3_EDH_OFF;
break;
default:
return;
}
if (tg3_nvram_read(tp, offset, &val))
return;
build = (val & TG3_EEPROM_SB_EDH_BLD_MASK) >>
TG3_EEPROM_SB_EDH_BLD_SHFT;
major = (val & TG3_EEPROM_SB_EDH_MAJ_MASK) >>
TG3_EEPROM_SB_EDH_MAJ_SHFT;
minor = val & TG3_EEPROM_SB_EDH_MIN_MASK;
if (minor > 99 || build > 26)
return;
snprintf(&tp->fw_ver[2], 30, " v%d.%02d", major, minor);
if (build > 0) {
tp->fw_ver[8] = 'a' + build - 1;
tp->fw_ver[9] = '\0';
}
}
static void __devinit tg3_read_mgmtfw_ver(struct tg3 *tp)
{
u32 val, offset, start;
int i, vlen;
for (offset = TG3_NVM_DIR_START;
offset < TG3_NVM_DIR_END;
offset += TG3_NVM_DIRENT_SIZE) {
if (tg3_nvram_read(tp, offset, &val))
return;
if ((val >> TG3_NVM_DIRTYPE_SHIFT) == TG3_NVM_DIRTYPE_ASFINI)
break;
}
if (offset == TG3_NVM_DIR_END)
return;
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
start = 0x08000000;
else if (tg3_nvram_read(tp, offset - 4, &start))
return;
if (tg3_nvram_read(tp, offset + 4, &offset) ||
!tg3_fw_img_is_valid(tp, offset) ||
tg3_nvram_read(tp, offset + 8, &val))
return;
offset += val - start;
vlen = strlen(tp->fw_ver);
tp->fw_ver[vlen++] = ',';
tp->fw_ver[vlen++] = ' ';
for (i = 0; i < 4; i++) {
__be32 v;
if (tg3_nvram_read_be32(tp, offset, &v))
return;
offset += sizeof(v);
if (vlen > TG3_VER_SIZE - sizeof(v)) {
memcpy(&tp->fw_ver[vlen], &v, TG3_VER_SIZE - vlen);
break;
}
memcpy(&tp->fw_ver[vlen], &v, sizeof(v));
vlen += sizeof(v);
}
}
static void __devinit tg3_read_dash_ver(struct tg3 *tp)
{
int vlen;
u32 apedata;
if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) ||
!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
return;
apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
if (apedata != APE_SEG_SIG_MAGIC)
return;
apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
if (!(apedata & APE_FW_STATUS_READY))
return;
apedata = tg3_ape_read32(tp, TG3_APE_FW_VERSION);
vlen = strlen(tp->fw_ver);
snprintf(&tp->fw_ver[vlen], TG3_VER_SIZE - vlen, " DASH v%d.%d.%d.%d",
(apedata & APE_FW_VERSION_MAJMSK) >> APE_FW_VERSION_MAJSFT,
(apedata & APE_FW_VERSION_MINMSK) >> APE_FW_VERSION_MINSFT,
(apedata & APE_FW_VERSION_REVMSK) >> APE_FW_VERSION_REVSFT,
(apedata & APE_FW_VERSION_BLDMSK));
}
static void __devinit tg3_read_fw_ver(struct tg3 *tp)
{
u32 val;
if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) {
tp->fw_ver[0] = 's';
tp->fw_ver[1] = 'b';
tp->fw_ver[2] = '\0';
return;
}
if (tg3_nvram_read(tp, 0, &val))
return;
if (val == TG3_EEPROM_MAGIC)
tg3_read_bc_ver(tp);
else if ((val & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW)
tg3_read_sb_ver(tp, val);
else if ((val & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
tg3_read_hwsb_ver(tp);
else
return;
if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
return;
tg3_read_mgmtfw_ver(tp);
tp->fw_ver[TG3_VER_SIZE - 1] = 0;
}
static struct pci_dev * __devinit tg3_find_peer(struct tg3 *);
static int __devinit tg3_get_invariants(struct tg3 *tp)
{
static struct pci_device_id write_reorder_chipsets[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD,
PCI_DEVICE_ID_AMD_FE_GATE_700C) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD,
PCI_DEVICE_ID_AMD_8131_BRIDGE) },
{ PCI_DEVICE(PCI_VENDOR_ID_VIA,
PCI_DEVICE_ID_VIA_8385_0) },
{ },
};
u32 misc_ctrl_reg;
u32 pci_state_reg, grc_misc_cfg;
u32 val;
u16 pci_cmd;
int err;
/* Force memory write invalidate off. If we leave it on,
* then on 5700_BX chips we have to enable a workaround.
* The workaround is to set the TG3PCI_DMA_RW_CTRL boundary
* to match the cacheline size. The Broadcom driver have this
* workaround but turns MWI off all the times so never uses
* it. This seems to suggest that the workaround is insufficient.
*/
pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
pci_cmd &= ~PCI_COMMAND_INVALIDATE;
pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
/* It is absolutely critical that TG3PCI_MISC_HOST_CTRL
* has the register indirect write enable bit set before
* we try to access any of the MMIO registers. It is also
* critical that the PCI-X hw workaround situation is decided
* before that as well.
*/
pci_read_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
&misc_ctrl_reg);
tp->pci_chip_rev_id = (misc_ctrl_reg >>
MISC_HOST_CTRL_CHIPREV_SHIFT);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_USE_PROD_ID_REG) {
u32 prod_id_asic_rev;
pci_read_config_dword(tp->pdev, TG3PCI_PRODID_ASICREV,
&prod_id_asic_rev);
tp->pci_chip_rev_id = prod_id_asic_rev;
}
/* Wrong chip ID in 5752 A0. This code can be removed later
* as A0 is not in production.
*/
if (tp->pci_chip_rev_id == CHIPREV_ID_5752_A0_HW)
tp->pci_chip_rev_id = CHIPREV_ID_5752_A0;
/* If we have 5702/03 A1 or A2 on certain ICH chipsets,
* we need to disable memory and use config. cycles
* only to access all registers. The 5702/03 chips
* can mistakenly decode the special cycles from the
* ICH chipsets as memory write cycles, causing corruption
* of register and memory space. Only certain ICH bridges
* will drive special cycles with non-zero data during the
* address phase which can fall within the 5703's address
* range. This is not an ICH bug as the PCI spec allows
* non-zero address during special cycles. However, only
* these ICH bridges are known to drive non-zero addresses
* during special cycles.
*
* Since special cycles do not cross PCI bridges, we only
* enable this workaround if the 5703 is on the secondary
* bus of these ICH bridges.
*/
if ((tp->pci_chip_rev_id == CHIPREV_ID_5703_A1) ||
(tp->pci_chip_rev_id == CHIPREV_ID_5703_A2)) {
static struct tg3_dev_id {
u32 vendor;
u32 device;
u32 rev;
} ich_chipsets[] = {
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_8,
PCI_ANY_ID },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_8,
PCI_ANY_ID },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_11,
0xa },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_6,
PCI_ANY_ID },
{ },
};
struct tg3_dev_id *pci_id = &ich_chipsets[0];
struct pci_dev *bridge = NULL;
while (pci_id->vendor != 0) {
bridge = pci_get_device(pci_id->vendor, pci_id->device,
bridge);
if (!bridge) {
pci_id++;
continue;
}
if (pci_id->rev != PCI_ANY_ID) {
if (bridge->revision > pci_id->rev)
continue;
}
if (bridge->subordinate &&
(bridge->subordinate->number ==
tp->pdev->bus->number)) {
tp->tg3_flags2 |= TG3_FLG2_ICH_WORKAROUND;
pci_dev_put(bridge);
break;
}
}
}
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
static struct tg3_dev_id {
u32 vendor;
u32 device;
} bridge_chipsets[] = {
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0 },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1 },
{ },
};
struct tg3_dev_id *pci_id = &bridge_chipsets[0];
struct pci_dev *bridge = NULL;
while (pci_id->vendor != 0) {
bridge = pci_get_device(pci_id->vendor,
pci_id->device,
bridge);
if (!bridge) {
pci_id++;
continue;
}
if (bridge->subordinate &&
(bridge->subordinate->number <=
tp->pdev->bus->number) &&
(bridge->subordinate->subordinate >=
tp->pdev->bus->number)) {
tp->tg3_flags3 |= TG3_FLG3_5701_DMA_BUG;
pci_dev_put(bridge);
break;
}
}
}
/* The EPB bridge inside 5714, 5715, and 5780 cannot support
* DMA addresses > 40-bit. This bridge may have other additional
* 57xx devices behind it in some 4-port NIC designs for example.
* Any tg3 device found behind the bridge will also need the 40-bit
* DMA workaround.
*/
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
tp->tg3_flags2 |= TG3_FLG2_5780_CLASS;
tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
tp->msi_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_MSI);
}
else {
struct pci_dev *bridge = NULL;
do {
bridge = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
PCI_DEVICE_ID_SERVERWORKS_EPB,
bridge);
if (bridge && bridge->subordinate &&
(bridge->subordinate->number <=
tp->pdev->bus->number) &&
(bridge->subordinate->subordinate >=
tp->pdev->bus->number)) {
tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
pci_dev_put(bridge);
break;
}
} while (bridge);
}
/* Initialize misc host control in PCI block. */
tp->misc_host_ctrl |= (misc_ctrl_reg &
MISC_HOST_CTRL_CHIPREV);
pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
tp->misc_host_ctrl);
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714))
tp->pdev_peer = tg3_find_peer(tp);
/* Intentionally exclude ASIC_REV_5906 */
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
tp->tg3_flags3 |= TG3_FLG3_5755_PLUS;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 ||
(tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
tp->tg3_flags2 |= TG3_FLG2_5750_PLUS;
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) ||
(tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
tp->tg3_flags2 |= TG3_FLG2_5705_PLUS;
/* 5700 B0 chips do not support checksumming correctly due
* to hardware bugs.
*/
if (tp->pci_chip_rev_id == CHIPREV_ID_5700_B0)
tp->tg3_flags |= TG3_FLAG_BROKEN_CHECKSUMS;
else {
tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
tp->dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
tp->dev->features |= NETIF_F_IPV6_CSUM;
}
if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
tp->tg3_flags |= TG3_FLAG_SUPPORT_MSI;
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX ||
GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 &&
tp->pci_chip_rev_id <= CHIPREV_ID_5714_A2 &&
tp->pdev_peer == tp->pdev))
tp->tg3_flags &= ~TG3_FLAG_SUPPORT_MSI;
if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
tp->tg3_flags2 |= TG3_FLG2_HW_TSO_2;
tp->tg3_flags2 |= TG3_FLG2_1SHOT_MSI;
} else {
tp->tg3_flags2 |= TG3_FLG2_HW_TSO_1 | TG3_FLG2_TSO_BUG;
if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
ASIC_REV_5750 &&
tp->pci_chip_rev_id >= CHIPREV_ID_5750_C2)
tp->tg3_flags2 &= ~TG3_FLG2_TSO_BUG;
}
}
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
tp->tg3_flags2 |= TG3_FLG2_JUMBO_CAPABLE;
pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
&pci_state_reg);
tp->pcie_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_EXP);
if (tp->pcie_cap != 0) {
u16 lnkctl;
tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
pcie_set_readrq(tp->pdev, 4096);
pci_read_config_word(tp->pdev,
tp->pcie_cap + PCI_EXP_LNKCTL,
&lnkctl);
if (lnkctl & PCI_EXP_LNKCTL_CLKREQ_EN) {
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
tp->tg3_flags2 &= ~TG3_FLG2_HW_TSO_2;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
tp->pci_chip_rev_id == CHIPREV_ID_57780_A0 ||
tp->pci_chip_rev_id == CHIPREV_ID_57780_A1)
tp->tg3_flags3 |= TG3_FLG3_CLKREQ_BUG;
}
} else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
} else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
tp->pcix_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_PCIX);
if (!tp->pcix_cap) {
printk(KERN_ERR PFX "Cannot find PCI-X "
"capability, aborting.\n");
return -EIO;
}
if (!(pci_state_reg & PCISTATE_CONV_PCI_MODE))
tp->tg3_flags |= TG3_FLAG_PCIX_MODE;
}
/* If we have an AMD 762 or VIA K8T800 chipset, write
* reordering to the mailbox registers done by the host
* controller can cause major troubles. We read back from
* every mailbox register write to force the writes to be
* posted to the chip in order.
*/
if (pci_dev_present(write_reorder_chipsets) &&
!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
&tp->pci_cacheline_sz);
pci_read_config_byte(tp->pdev, PCI_LATENCY_TIMER,
&tp->pci_lat_timer);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
tp->pci_lat_timer < 64) {
tp->pci_lat_timer = 64;
pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
tp->pci_lat_timer);
}
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5700_BX) {
/* 5700 BX chips need to have their TX producer index
* mailboxes written twice to workaround a bug.
*/
tp->tg3_flags |= TG3_FLAG_TXD_MBOX_HWBUG;
/* If we are in PCI-X mode, enable register write workaround.
*
* The workaround is to use indirect register accesses
* for all chip writes not to mailbox registers.
*/
if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
u32 pm_reg;
tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
/* The chip can have it's power management PCI config
* space registers clobbered due to this bug.
* So explicitly force the chip into D0 here.
*/
pci_read_config_dword(tp->pdev,
tp->pm_cap + PCI_PM_CTRL,
&pm_reg);
pm_reg &= ~PCI_PM_CTRL_STATE_MASK;
pm_reg |= PCI_PM_CTRL_PME_ENABLE | 0 /* D0 */;
pci_write_config_dword(tp->pdev,
tp->pm_cap + PCI_PM_CTRL,
pm_reg);
/* Also, force SERR#/PERR# in PCI command. */
pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
pci_cmd |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
}
}
if ((pci_state_reg & PCISTATE_BUS_SPEED_HIGH) != 0)
tp->tg3_flags |= TG3_FLAG_PCI_HIGH_SPEED;
if ((pci_state_reg & PCISTATE_BUS_32BIT) != 0)
tp->tg3_flags |= TG3_FLAG_PCI_32BIT;
/* Chip-specific fixup from Broadcom driver */
if ((tp->pci_chip_rev_id == CHIPREV_ID_5704_A0) &&
(!(pci_state_reg & PCISTATE_RETRY_SAME_DMA))) {
pci_state_reg |= PCISTATE_RETRY_SAME_DMA;
pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, pci_state_reg);
}
/* Default fast path register access methods */
tp->read32 = tg3_read32;
tp->write32 = tg3_write32;
tp->read32_mbox = tg3_read32;
tp->write32_mbox = tg3_write32;
tp->write32_tx_mbox = tg3_write32;
tp->write32_rx_mbox = tg3_write32;
/* Various workaround register access methods */
if (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG)
tp->write32 = tg3_write_indirect_reg32;
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 ||
((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
tp->pci_chip_rev_id == CHIPREV_ID_5750_A0)) {
/*
* Back to back register writes can cause problems on these
* chips, the workaround is to read back all reg writes
* except those to mailbox regs.
*
* See tg3_write_indirect_reg32().
*/
tp->write32 = tg3_write_flush_reg32;
}
if ((tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG) ||
(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)) {
tp->write32_tx_mbox = tg3_write32_tx_mbox;
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tp->write32_rx_mbox = tg3_write_flush_reg32;
}
if (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND) {
tp->read32 = tg3_read_indirect_reg32;
tp->write32 = tg3_write_indirect_reg32;
tp->read32_mbox = tg3_read_indirect_mbox;
tp->write32_mbox = tg3_write_indirect_mbox;
tp->write32_tx_mbox = tg3_write_indirect_mbox;
tp->write32_rx_mbox = tg3_write_indirect_mbox;
iounmap(tp->regs);
tp->regs = NULL;
pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
pci_cmd &= ~PCI_COMMAND_MEMORY;
pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
tp->read32_mbox = tg3_read32_mbox_5906;
tp->write32_mbox = tg3_write32_mbox_5906;
tp->write32_tx_mbox = tg3_write32_mbox_5906;
tp->write32_rx_mbox = tg3_write32_mbox_5906;
}
if (tp->write32 == tg3_write_indirect_reg32 ||
((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)))
tp->tg3_flags |= TG3_FLAG_SRAM_USE_CONFIG;
/* Get eeprom hw config before calling tg3_set_power_state().
* In particular, the TG3_FLG2_IS_NIC flag must be
* determined before calling tg3_set_power_state() so that
* we know whether or not to switch out of Vaux power.
* When the flag is set, it means that GPIO1 is used for eeprom
* write protect and also implies that it is a LOM where GPIOs
* are not used to switch power.
*/
tg3_get_eeprom_hw_cfg(tp);
if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
/* Allow reads and writes to the
* APE register and memory space.
*/
pci_state_reg |= PCISTATE_ALLOW_APE_CTLSPC_WR |
PCISTATE_ALLOW_APE_SHMEM_WR;
pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE,
pci_state_reg);
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
tp->tg3_flags |= TG3_FLAG_CPMU_PRESENT;
/* Set up tp->grc_local_ctrl before calling tg3_set_power_state().
* GPIO1 driven high will bring 5700's external PHY out of reset.
* It is also used as eeprom write protect on LOMs.
*/
tp->grc_local_ctrl = GRC_LCLCTRL_INT_ON_ATTN | GRC_LCLCTRL_AUTO_SEEPROM;
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
(tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT))
tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OUTPUT1);
/* Unused GPIO3 must be driven as output on 5752 because there
* are no pull-up resistors on unused GPIO pins.
*/
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
/* Turn off the debug UART. */
tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
/* Keep VMain power. */
tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
GRC_LCLCTRL_GPIO_OUTPUT0;
}
/* Force the chip into D0. */
err = tg3_set_power_state(tp, PCI_D0);
if (err) {
printk(KERN_ERR PFX "(%s) transition to D0 failed\n",
pci_name(tp->pdev));
return err;
}
/* Derive initial jumbo mode from MTU assigned in
* ether_setup() via the alloc_etherdev() call
*/
if (tp->dev->mtu > ETH_DATA_LEN &&
!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
/* Determine WakeOnLan speed to use. */
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
tp->pci_chip_rev_id == CHIPREV_ID_5701_B0 ||
tp->pci_chip_rev_id == CHIPREV_ID_5701_B2) {
tp->tg3_flags &= ~(TG3_FLAG_WOL_SPEED_100MB);
} else {
tp->tg3_flags |= TG3_FLAG_WOL_SPEED_100MB;
}
/* A few boards don't want Ethernet@WireSpeed phy feature */
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
(tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) &&
(tp->pci_chip_rev_id != CHIPREV_ID_5705_A1)) ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) ||
(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
tp->tg3_flags2 |= TG3_FLG2_NO_ETH_WIRE_SPEED;
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5703_AX ||
GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_AX)
tp->tg3_flags2 |= TG3_FLG2_PHY_ADC_BUG;
if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0)
tp->tg3_flags2 |= TG3_FLG2_PHY_5704_A0_BUG;
if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5906 &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57780) {
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) {
if (tp->pdev->device != PCI_DEVICE_ID_TIGON3_5756 &&
tp->pdev->device != PCI_DEVICE_ID_TIGON3_5722)
tp->tg3_flags2 |= TG3_FLG2_PHY_JITTER_BUG;
if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5755M)
tp->tg3_flags2 |= TG3_FLG2_PHY_ADJUST_TRIM;
} else
tp->tg3_flags2 |= TG3_FLG2_PHY_BER_BUG;
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
tp->phy_otp = tg3_read_otp_phycfg(tp);
if (tp->phy_otp == 0)
tp->phy_otp = TG3_OTP_DEFAULT;
}
if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)
tp->mi_mode = MAC_MI_MODE_500KHZ_CONST;
else
tp->mi_mode = MAC_MI_MODE_BASE;
tp->coalesce_mode = 0;
if (GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_AX &&
GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_BX)
tp->coalesce_mode |= HOSTCC_MODE_32BYTE;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
tp->tg3_flags3 |= TG3_FLG3_USE_PHYLIB;
err = tg3_mdio_init(tp);
if (err)
return err;
/* Initialize data/descriptor byte/word swapping. */
val = tr32(GRC_MODE);
val &= GRC_MODE_HOST_STACKUP;
tw32(GRC_MODE, val | tp->grc_mode);
tg3_switch_clocks(tp);
/* Clear this out for sanity. */
tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
&pci_state_reg);
if ((pci_state_reg & PCISTATE_CONV_PCI_MODE) == 0 &&
(tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) == 0) {
u32 chiprevid = GET_CHIP_REV_ID(tp->misc_host_ctrl);
if (chiprevid == CHIPREV_ID_5701_A0 ||
chiprevid == CHIPREV_ID_5701_B0 ||
chiprevid == CHIPREV_ID_5701_B2 ||
chiprevid == CHIPREV_ID_5701_B5) {
void __iomem *sram_base;
/* Write some dummy words into the SRAM status block
* area, see if it reads back correctly. If the return
* value is bad, force enable the PCIX workaround.
*/
sram_base = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_STATS_BLK;
writel(0x00000000, sram_base);
writel(0x00000000, sram_base + 4);
writel(0xffffffff, sram_base + 4);
if (readl(sram_base) != 0x00000000)
tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
}
}
udelay(50);
tg3_nvram_init(tp);
grc_misc_cfg = tr32(GRC_MISC_CFG);
grc_misc_cfg &= GRC_MISC_CFG_BOARD_ID_MASK;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
(grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788 ||
grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788M))
tp->tg3_flags2 |= TG3_FLG2_IS_5788;
if (!(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
(GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700))
tp->tg3_flags |= TG3_FLAG_TAGGED_STATUS;
if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
tp->coalesce_mode |= (HOSTCC_MODE_CLRTICK_RXBD |
HOSTCC_MODE_CLRTICK_TXBD);
tp->misc_host_ctrl |= MISC_HOST_CTRL_TAGGED_STATUS;
pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
tp->misc_host_ctrl);
}
/* Preserve the APE MAC_MODE bits */
if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
tp->mac_mode = tr32(MAC_MODE) |
MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
else
tp->mac_mode = TG3_DEF_MAC_MODE;
/* these are limited to 10/100 only */
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
(grc_misc_cfg == 0x8000 || grc_misc_cfg == 0x4000)) ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
(tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901 ||
tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901_2 ||
tp->pdev->device == PCI_DEVICE_ID_TIGON3_5705F)) ||
(tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
(tp->pdev->device == PCI_DEVICE_ID_TIGON3_5751F ||
tp->pdev->device == PCI_DEVICE_ID_TIGON3_5753F ||
tp->pdev->device == PCI_DEVICE_ID_TIGON3_5787F)) ||
tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
tp->tg3_flags |= TG3_FLAG_10_100_ONLY;
err = tg3_phy_probe(tp);
if (err) {
printk(KERN_ERR PFX "(%s) phy probe failed, err %d\n",
pci_name(tp->pdev), err);
/* ... but do not return immediately ... */
tg3_mdio_fini(tp);
}
tg3_read_partno(tp);
tg3_read_fw_ver(tp);
if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
tp->tg3_flags &= ~TG3_FLAG_USE_MI_INTERRUPT;
} else {
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
tp->tg3_flags |= TG3_FLAG_USE_MI_INTERRUPT;
else
tp->tg3_flags &= ~TG3_FLAG_USE_MI_INTERRUPT;
}
/* 5700 {AX,BX} chips have a broken status block link
* change bit implementation, so we must use the
* status register in those cases.
*/
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
tp->tg3_flags |= TG3_FLAG_USE_LINKCHG_REG;
else
tp->tg3_flags &= ~TG3_FLAG_USE_LINKCHG_REG;
/* The led_ctrl is set during tg3_phy_probe, here we might
* have to force the link status polling mechanism based
* upon subsystem IDs.
*/
if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
tp->tg3_flags |= (TG3_FLAG_USE_MI_INTERRUPT |
TG3_FLAG_USE_LINKCHG_REG);
}
/* For all SERDES we poll the MAC status register. */
if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
tp->tg3_flags |= TG3_FLAG_POLL_SERDES;
else
tp->tg3_flags &= ~TG3_FLAG_POLL_SERDES;
tp->rx_offset = NET_IP_ALIGN;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
(tp->tg3_flags & TG3_FLAG_PCIX_MODE) != 0)
tp->rx_offset = 0;
tp->rx_std_max_post = TG3_RX_RING_SIZE;
/* Increment the rx prod index on the rx std ring by at most
* 8 for these chips to workaround hw errata.
*/
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
tp->rx_std_max_post = 8;
if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND)
tp->pwrmgmt_thresh = tr32(PCIE_PWR_MGMT_THRESH) &
PCIE_PWR_MGMT_L1_THRESH_MSK;
return err;
}
#ifdef CONFIG_SPARC
static int __devinit tg3_get_macaddr_sparc(struct tg3 *tp)
{
struct net_device *dev = tp->dev;
struct pci_dev *pdev = tp->pdev;
struct device_node *dp = pci_device_to_OF_node(pdev);
const unsigned char *addr;
int len;
addr = of_get_property(dp, "local-mac-address", &len);
if (addr && len == 6) {
memcpy(dev->dev_addr, addr, 6);
memcpy(dev->perm_addr, dev->dev_addr, 6);
return 0;
}
return -ENODEV;
}
static int __devinit tg3_get_default_macaddr_sparc(struct tg3 *tp)
{
struct net_device *dev = tp->dev;
memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
memcpy(dev->perm_addr, idprom->id_ethaddr, 6);
return 0;
}
#endif
static int __devinit tg3_get_device_address(struct tg3 *tp)
{
struct net_device *dev = tp->dev;
u32 hi, lo, mac_offset;
int addr_ok = 0;
#ifdef CONFIG_SPARC
if (!tg3_get_macaddr_sparc(tp))
return 0;
#endif
mac_offset = 0x7c;
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
mac_offset = 0xcc;
if (tg3_nvram_lock(tp))
tw32_f(NVRAM_CMD, NVRAM_CMD_RESET);
else
tg3_nvram_unlock(tp);
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
mac_offset = 0x10;
/* First try to get it from MAC address mailbox. */
tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_HIGH_MBOX, &hi);
if ((hi >> 16) == 0x484b) {
dev->dev_addr[0] = (hi >> 8) & 0xff;
dev->dev_addr[1] = (hi >> 0) & 0xff;
tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_LOW_MBOX, &lo);
dev->dev_addr[2] = (lo >> 24) & 0xff;
dev->dev_addr[3] = (lo >> 16) & 0xff;
dev->dev_addr[4] = (lo >> 8) & 0xff;
dev->dev_addr[5] = (lo >> 0) & 0xff;
/* Some old bootcode may report a 0 MAC address in SRAM */
addr_ok = is_valid_ether_addr(&dev->dev_addr[0]);
}
if (!addr_ok) {
/* Next, try NVRAM. */
if (!(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) &&
!tg3_nvram_read_be32(tp, mac_offset + 0, &hi) &&
!tg3_nvram_read_be32(tp, mac_offset + 4, &lo)) {
memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
}
/* Finally just fetch it out of the MAC control regs. */
else {
hi = tr32(MAC_ADDR_0_HIGH);
lo = tr32(MAC_ADDR_0_LOW);
dev->dev_addr[5] = lo & 0xff;
dev->dev_addr[4] = (lo >> 8) & 0xff;
dev->dev_addr[3] = (lo >> 16) & 0xff;
dev->dev_addr[2] = (lo >> 24) & 0xff;
dev->dev_addr[1] = hi & 0xff;
dev->dev_addr[0] = (hi >> 8) & 0xff;
}
}
if (!is_valid_ether_addr(&dev->dev_addr[0])) {
#ifdef CONFIG_SPARC
if (!tg3_get_default_macaddr_sparc(tp))
return 0;
#endif
return -EINVAL;
}
memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
return 0;
}
#define BOUNDARY_SINGLE_CACHELINE 1
#define BOUNDARY_MULTI_CACHELINE 2
static u32 __devinit tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
{
int cacheline_size;
u8 byte;
int goal;
pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE, &byte);
if (byte == 0)
cacheline_size = 1024;
else
cacheline_size = (int) byte * 4;
/* On 5703 and later chips, the boundary bits have no
* effect.
*/
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
goto out;
#if defined(CONFIG_PPC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
goal = BOUNDARY_MULTI_CACHELINE;
#else
#if defined(CONFIG_SPARC64) || defined(CONFIG_ALPHA)
goal = BOUNDARY_SINGLE_CACHELINE;
#else
goal = 0;
#endif
#endif
if (!goal)
goto out;
/* PCI controllers on most RISC systems tend to disconnect
* when a device tries to burst across a cache-line boundary.
* Therefore, letting tg3 do so just wastes PCI bandwidth.
*
* Unfortunately, for PCI-E there are only limited
* write-side controls for this, and thus for reads
* we will still get the disconnects. We'll also waste
* these PCI cycles for both read and write for chips
* other than 5700 and 5701 which do not implement the
* boundary bits.
*/
if ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
switch (cacheline_size) {
case 16:
case 32:
case 64:
case 128:
if (goal == BOUNDARY_SINGLE_CACHELINE) {
val |= (DMA_RWCTRL_READ_BNDRY_128_PCIX |
DMA_RWCTRL_WRITE_BNDRY_128_PCIX);
} else {
val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
}
break;
case 256:
val |= (DMA_RWCTRL_READ_BNDRY_256_PCIX |
DMA_RWCTRL_WRITE_BNDRY_256_PCIX);
break;
default:
val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
break;
}
} else if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
switch (cacheline_size) {
case 16:
case 32:
case 64:
if (goal == BOUNDARY_SINGLE_CACHELINE) {
val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
val |= DMA_RWCTRL_WRITE_BNDRY_64_PCIE;
break;
}
/* fallthrough */
case 128:
default:
val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
val |= DMA_RWCTRL_WRITE_BNDRY_128_PCIE;
break;
}
} else {
switch (cacheline_size) {
case 16:
if (goal == BOUNDARY_SINGLE_CACHELINE) {
val |= (DMA_RWCTRL_READ_BNDRY_16 |
DMA_RWCTRL_WRITE_BNDRY_16);
break;
}
/* fallthrough */
case 32:
if (goal == BOUNDARY_SINGLE_CACHELINE) {
val |= (DMA_RWCTRL_READ_BNDRY_32 |
DMA_RWCTRL_WRITE_BNDRY_32);
break;
}
/* fallthrough */
case 64:
if (goal == BOUNDARY_SINGLE_CACHELINE) {
val |= (DMA_RWCTRL_READ_BNDRY_64 |
DMA_RWCTRL_WRITE_BNDRY_64);
break;
}
/* fallthrough */
case 128:
if (goal == BOUNDARY_SINGLE_CACHELINE) {
val |= (DMA_RWCTRL_READ_BNDRY_128 |
DMA_RWCTRL_WRITE_BNDRY_128);
break;
}
/* fallthrough */
case 256:
val |= (DMA_RWCTRL_READ_BNDRY_256 |
DMA_RWCTRL_WRITE_BNDRY_256);
break;
case 512:
val |= (DMA_RWCTRL_READ_BNDRY_512 |
DMA_RWCTRL_WRITE_BNDRY_512);
break;
case 1024:
default:
val |= (DMA_RWCTRL_READ_BNDRY_1024 |
DMA_RWCTRL_WRITE_BNDRY_1024);
break;
}
}
out:
return val;
}
static int __devinit tg3_do_test_dma(struct tg3 *tp, u32 *buf, dma_addr_t buf_dma, int size, int to_device)
{
struct tg3_internal_buffer_desc test_desc;
u32 sram_dma_descs;
int i, ret;
sram_dma_descs = NIC_SRAM_DMA_DESC_POOL_BASE;
tw32(FTQ_RCVBD_COMP_FIFO_ENQDEQ, 0);
tw32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ, 0);
tw32(RDMAC_STATUS, 0);
tw32(WDMAC_STATUS, 0);
tw32(BUFMGR_MODE, 0);
tw32(FTQ_RESET, 0);
test_desc.addr_hi = ((u64) buf_dma) >> 32;
test_desc.addr_lo = buf_dma & 0xffffffff;
test_desc.nic_mbuf = 0x00002100;
test_desc.len = size;
/*
* HP ZX1 was seeing test failures for 5701 cards running at 33Mhz
* the *second* time the tg3 driver was getting loaded after an
* initial scan.
*
* Broadcom tells me:
* ...the DMA engine is connected to the GRC block and a DMA
* reset may affect the GRC block in some unpredictable way...
* The behavior of resets to individual blocks has not been tested.
*
* Broadcom noted the GRC reset will also reset all sub-components.
*/
if (to_device) {
test_desc.cqid_sqid = (13 << 8) | 2;
tw32_f(RDMAC_MODE, RDMAC_MODE_ENABLE);
udelay(40);
} else {
test_desc.cqid_sqid = (16 << 8) | 7;
tw32_f(WDMAC_MODE, WDMAC_MODE_ENABLE);
udelay(40);
}
test_desc.flags = 0x00000005;
for (i = 0; i < (sizeof(test_desc) / sizeof(u32)); i++) {
u32 val;
val = *(((u32 *)&test_desc) + i);
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR,
sram_dma_descs + (i * sizeof(u32)));
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
}
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
if (to_device) {
tw32(FTQ_DMA_HIGH_READ_FIFO_ENQDEQ, sram_dma_descs);
} else {
tw32(FTQ_DMA_HIGH_WRITE_FIFO_ENQDEQ, sram_dma_descs);
}
ret = -ENODEV;
for (i = 0; i < 40; i++) {
u32 val;
if (to_device)
val = tr32(FTQ_RCVBD_COMP_FIFO_ENQDEQ);
else
val = tr32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ);
if ((val & 0xffff) == sram_dma_descs) {
ret = 0;
break;
}
udelay(100);
}
return ret;
}
#define TEST_BUFFER_SIZE 0x2000
static int __devinit tg3_test_dma(struct tg3 *tp)
{
dma_addr_t buf_dma;
u32 *buf, saved_dma_rwctrl;
int ret;
buf = pci_alloc_consistent(tp->pdev, TEST_BUFFER_SIZE, &buf_dma);
if (!buf) {
ret = -ENOMEM;
goto out_nofree;
}
tp->dma_rwctrl = ((0x7 << DMA_RWCTRL_PCI_WRITE_CMD_SHIFT) |
(0x6 << DMA_RWCTRL_PCI_READ_CMD_SHIFT));
tp->dma_rwctrl = tg3_calc_dma_bndry(tp, tp->dma_rwctrl);
if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
/* DMA read watermark not used on PCIE */
tp->dma_rwctrl |= 0x00180000;
} else if (!(tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)
tp->dma_rwctrl |= 0x003f0000;
else
tp->dma_rwctrl |= 0x003f000f;
} else {
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
u32 ccval = (tr32(TG3PCI_CLOCK_CTRL) & 0x1f);
u32 read_water = 0x7;
/* If the 5704 is behind the EPB bridge, we can
* do the less restrictive ONE_DMA workaround for
* better performance.
*/
if ((tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) &&
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
tp->dma_rwctrl |= 0x8000;
else if (ccval == 0x6 || ccval == 0x7)
tp->dma_rwctrl |= DMA_RWCTRL_ONE_DMA;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703)
read_water = 4;
/* Set bit 23 to enable PCIX hw bug fix */
tp->dma_rwctrl |=
(read_water << DMA_RWCTRL_READ_WATER_SHIFT) |
(0x3 << DMA_RWCTRL_WRITE_WATER_SHIFT) |
(1 << 23);
} else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
/* 5780 always in PCIX mode */
tp->dma_rwctrl |= 0x00144000;
} else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
/* 5714 always in PCIX mode */
tp->dma_rwctrl |= 0x00148000;
} else {
tp->dma_rwctrl |= 0x001b000f;
}
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
tp->dma_rwctrl &= 0xfffffff0;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
/* Remove this if it causes problems for some boards. */
tp->dma_rwctrl |= DMA_RWCTRL_USE_MEM_READ_MULT;
/* On 5700/5701 chips, we need to set this bit.
* Otherwise the chip will issue cacheline transactions
* to streamable DMA memory with not all the byte
* enables turned on. This is an error on several
* RISC PCI controllers, in particular sparc64.
*
* On 5703/5704 chips, this bit has been reassigned
* a different meaning. In particular, it is used
* on those chips to enable a PCI-X workaround.
*/
tp->dma_rwctrl |= DMA_RWCTRL_ASSERT_ALL_BE;
}
tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
#if 0
/* Unneeded, already done by tg3_get_invariants. */
tg3_switch_clocks(tp);
#endif
ret = 0;
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
goto out;
/* It is best to perform DMA test with maximum write burst size
* to expose the 5700/5701 write DMA bug.
*/
saved_dma_rwctrl = tp->dma_rwctrl;
tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
while (1) {
u32 *p = buf, i;
for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++)
p[i] = i;
/* Send the buffer to the chip. */
ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 1);
if (ret) {
printk(KERN_ERR "tg3_test_dma() Write the buffer failed %d\n", ret);
break;
}
#if 0
/* validate data reached card RAM correctly. */
for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
u32 val;
tg3_read_mem(tp, 0x2100 + (i*4), &val);
if (le32_to_cpu(val) != p[i]) {
printk(KERN_ERR " tg3_test_dma() Card buffer corrupted on write! (%d != %d)\n", val, i);
/* ret = -ENODEV here? */
}
p[i] = 0;
}
#endif
/* Now read it back. */
ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 0);
if (ret) {
printk(KERN_ERR "tg3_test_dma() Read the buffer failed %d\n", ret);
break;
}
/* Verify it. */
for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
if (p[i] == i)
continue;
if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
DMA_RWCTRL_WRITE_BNDRY_16) {
tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
break;
} else {
printk(KERN_ERR "tg3_test_dma() buffer corrupted on read back! (%d != %d)\n", p[i], i);
ret = -ENODEV;
goto out;
}
}
if (i == (TEST_BUFFER_SIZE / sizeof(u32))) {
/* Success. */
ret = 0;
break;
}
}
if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
DMA_RWCTRL_WRITE_BNDRY_16) {
static struct pci_device_id dma_wait_state_chipsets[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_APPLE,
PCI_DEVICE_ID_APPLE_UNI_N_PCI15) },
{ },
};
/* DMA test passed without adjusting DMA boundary,
* now look for chipsets that are known to expose the
* DMA bug without failing the test.
*/
if (pci_dev_present(dma_wait_state_chipsets)) {
tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
}
else
/* Safe to use the calculated DMA boundary. */
tp->dma_rwctrl = saved_dma_rwctrl;
tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
}
out:
pci_free_consistent(tp->pdev, TEST_BUFFER_SIZE, buf, buf_dma);
out_nofree:
return ret;
}
static void __devinit tg3_init_link_config(struct tg3 *tp)
{
tp->link_config.advertising =
(ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full |
ADVERTISED_Autoneg | ADVERTISED_MII);
tp->link_config.speed = SPEED_INVALID;
tp->link_config.duplex = DUPLEX_INVALID;
tp->link_config.autoneg = AUTONEG_ENABLE;
tp->link_config.active_speed = SPEED_INVALID;
tp->link_config.active_duplex = DUPLEX_INVALID;
tp->link_config.phy_is_low_power = 0;
tp->link_config.orig_speed = SPEED_INVALID;
tp->link_config.orig_duplex = DUPLEX_INVALID;
tp->link_config.orig_autoneg = AUTONEG_INVALID;
}
static void __devinit tg3_init_bufmgr_config(struct tg3 *tp)
{
if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
tp->bufmgr_config.mbuf_read_dma_low_water =
DEFAULT_MB_RDMA_LOW_WATER_5705;
tp->bufmgr_config.mbuf_mac_rx_low_water =
DEFAULT_MB_MACRX_LOW_WATER_5705;
tp->bufmgr_config.mbuf_high_water =
DEFAULT_MB_HIGH_WATER_5705;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
tp->bufmgr_config.mbuf_mac_rx_low_water =
DEFAULT_MB_MACRX_LOW_WATER_5906;
tp->bufmgr_config.mbuf_high_water =
DEFAULT_MB_HIGH_WATER_5906;
}
tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
DEFAULT_MB_RDMA_LOW_WATER_JUMBO_5780;
tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
DEFAULT_MB_MACRX_LOW_WATER_JUMBO_5780;
tp->bufmgr_config.mbuf_high_water_jumbo =
DEFAULT_MB_HIGH_WATER_JUMBO_5780;
} else {
tp->bufmgr_config.mbuf_read_dma_low_water =
DEFAULT_MB_RDMA_LOW_WATER;
tp->bufmgr_config.mbuf_mac_rx_low_water =
DEFAULT_MB_MACRX_LOW_WATER;
tp->bufmgr_config.mbuf_high_water =
DEFAULT_MB_HIGH_WATER;
tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
DEFAULT_MB_RDMA_LOW_WATER_JUMBO;
tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
DEFAULT_MB_MACRX_LOW_WATER_JUMBO;
tp->bufmgr_config.mbuf_high_water_jumbo =
DEFAULT_MB_HIGH_WATER_JUMBO;
}
tp->bufmgr_config.dma_low_water = DEFAULT_DMA_LOW_WATER;
tp->bufmgr_config.dma_high_water = DEFAULT_DMA_HIGH_WATER;
}
static char * __devinit tg3_phy_string(struct tg3 *tp)
{
switch (tp->phy_id & PHY_ID_MASK) {
case PHY_ID_BCM5400: return "5400";
case PHY_ID_BCM5401: return "5401";
case PHY_ID_BCM5411: return "5411";
case PHY_ID_BCM5701: return "5701";
case PHY_ID_BCM5703: return "5703";
case PHY_ID_BCM5704: return "5704";
case PHY_ID_BCM5705: return "5705";
case PHY_ID_BCM5750: return "5750";
case PHY_ID_BCM5752: return "5752";
case PHY_ID_BCM5714: return "5714";
case PHY_ID_BCM5780: return "5780";
case PHY_ID_BCM5755: return "5755";
case PHY_ID_BCM5787: return "5787";
case PHY_ID_BCM5784: return "5784";
case PHY_ID_BCM5756: return "5722/5756";
case PHY_ID_BCM5906: return "5906";
case PHY_ID_BCM5761: return "5761";
case PHY_ID_BCM8002: return "8002/serdes";
case 0: return "serdes";
default: return "unknown";
}
}
static char * __devinit tg3_bus_string(struct tg3 *tp, char *str)
{
if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
strcpy(str, "PCI Express");
return str;
} else if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL) & 0x1f;
strcpy(str, "PCIX:");
if ((clock_ctrl == 7) ||
((tr32(GRC_MISC_CFG) & GRC_MISC_CFG_BOARD_ID_MASK) ==
GRC_MISC_CFG_BOARD_ID_5704CIOBE))
strcat(str, "133MHz");
else if (clock_ctrl == 0)
strcat(str, "33MHz");
else if (clock_ctrl == 2)
strcat(str, "50MHz");
else if (clock_ctrl == 4)
strcat(str, "66MHz");
else if (clock_ctrl == 6)
strcat(str, "100MHz");
} else {
strcpy(str, "PCI:");
if (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED)
strcat(str, "66MHz");
else
strcat(str, "33MHz");
}
if (tp->tg3_flags & TG3_FLAG_PCI_32BIT)
strcat(str, ":32-bit");
else
strcat(str, ":64-bit");
return str;
}
static struct pci_dev * __devinit tg3_find_peer(struct tg3 *tp)
{
struct pci_dev *peer;
unsigned int func, devnr = tp->pdev->devfn & ~7;
for (func = 0; func < 8; func++) {
peer = pci_get_slot(tp->pdev->bus, devnr | func);
if (peer && peer != tp->pdev)
break;
pci_dev_put(peer);
}
/* 5704 can be configured in single-port mode, set peer to
* tp->pdev in that case.
*/
if (!peer) {
peer = tp->pdev;
return peer;
}
/*
* We don't need to keep the refcount elevated; there's no way
* to remove one half of this device without removing the other
*/
pci_dev_put(peer);
return peer;
}
static void __devinit tg3_init_coal(struct tg3 *tp)
{
struct ethtool_coalesce *ec = &tp->coal;
memset(ec, 0, sizeof(*ec));
ec->cmd = ETHTOOL_GCOALESCE;
ec->rx_coalesce_usecs = LOW_RXCOL_TICKS;
ec->tx_coalesce_usecs = LOW_TXCOL_TICKS;
ec->rx_max_coalesced_frames = LOW_RXMAX_FRAMES;
ec->tx_max_coalesced_frames = LOW_TXMAX_FRAMES;
ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT;
ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT;
ec->rx_max_coalesced_frames_irq = DEFAULT_RXCOAL_MAXF_INT;
ec->tx_max_coalesced_frames_irq = DEFAULT_TXCOAL_MAXF_INT;
ec->stats_block_coalesce_usecs = DEFAULT_STAT_COAL_TICKS;
if (tp->coalesce_mode & (HOSTCC_MODE_CLRTICK_RXBD |
HOSTCC_MODE_CLRTICK_TXBD)) {
ec->rx_coalesce_usecs = LOW_RXCOL_TICKS_CLRTCKS;
ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT_CLRTCKS;
ec->tx_coalesce_usecs = LOW_TXCOL_TICKS_CLRTCKS;
ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT_CLRTCKS;
}
if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
ec->rx_coalesce_usecs_irq = 0;
ec->tx_coalesce_usecs_irq = 0;
ec->stats_block_coalesce_usecs = 0;
}
}
static const struct net_device_ops tg3_netdev_ops = {
.ndo_open = tg3_open,
.ndo_stop = tg3_close,
.ndo_start_xmit = tg3_start_xmit,
.ndo_get_stats = tg3_get_stats,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_multicast_list = tg3_set_rx_mode,
.ndo_set_mac_address = tg3_set_mac_addr,
.ndo_do_ioctl = tg3_ioctl,
.ndo_tx_timeout = tg3_tx_timeout,
.ndo_change_mtu = tg3_change_mtu,
#if TG3_VLAN_TAG_USED
.ndo_vlan_rx_register = tg3_vlan_rx_register,
#endif
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = tg3_poll_controller,
#endif
};
static const struct net_device_ops tg3_netdev_ops_dma_bug = {
.ndo_open = tg3_open,
.ndo_stop = tg3_close,
.ndo_start_xmit = tg3_start_xmit_dma_bug,
.ndo_get_stats = tg3_get_stats,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_multicast_list = tg3_set_rx_mode,
.ndo_set_mac_address = tg3_set_mac_addr,
.ndo_do_ioctl = tg3_ioctl,
.ndo_tx_timeout = tg3_tx_timeout,
.ndo_change_mtu = tg3_change_mtu,
#if TG3_VLAN_TAG_USED
.ndo_vlan_rx_register = tg3_vlan_rx_register,
#endif
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = tg3_poll_controller,
#endif
};
static int __devinit tg3_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
static int tg3_version_printed = 0;
struct net_device *dev;
struct tg3 *tp;
int err, pm_cap;
char str[40];
u64 dma_mask, persist_dma_mask;
if (tg3_version_printed++ == 0)
printk(KERN_INFO "%s", version);
err = pci_enable_device(pdev);
if (err) {
printk(KERN_ERR PFX "Cannot enable PCI device, "
"aborting.\n");
return err;
}
err = pci_request_regions(pdev, DRV_MODULE_NAME);
if (err) {
printk(KERN_ERR PFX "Cannot obtain PCI resources, "
"aborting.\n");
goto err_out_disable_pdev;
}
pci_set_master(pdev);
/* Find power-management capability. */
pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
if (pm_cap == 0) {
printk(KERN_ERR PFX "Cannot find PowerManagement capability, "
"aborting.\n");
err = -EIO;
goto err_out_free_res;
}
dev = alloc_etherdev(sizeof(*tp));
if (!dev) {
printk(KERN_ERR PFX "Etherdev alloc failed, aborting.\n");
err = -ENOMEM;
goto err_out_free_res;
}
SET_NETDEV_DEV(dev, &pdev->dev);
#if TG3_VLAN_TAG_USED
dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
#endif
tp = netdev_priv(dev);
tp->pdev = pdev;
tp->dev = dev;
tp->pm_cap = pm_cap;
tp->rx_mode = TG3_DEF_RX_MODE;
tp->tx_mode = TG3_DEF_TX_MODE;
if (tg3_debug > 0)
tp->msg_enable = tg3_debug;
else
tp->msg_enable = TG3_DEF_MSG_ENABLE;
/* The word/byte swap controls here control register access byte
* swapping. DMA data byte swapping is controlled in the GRC_MODE
* setting below.
*/
tp->misc_host_ctrl =
MISC_HOST_CTRL_MASK_PCI_INT |
MISC_HOST_CTRL_WORD_SWAP |
MISC_HOST_CTRL_INDIR_ACCESS |
MISC_HOST_CTRL_PCISTATE_RW;
/* The NONFRM (non-frame) byte/word swap controls take effect
* on descriptor entries, anything which isn't packet data.
*
* The StrongARM chips on the board (one for tx, one for rx)
* are running in big-endian mode.
*/
tp->grc_mode = (GRC_MODE_WSWAP_DATA | GRC_MODE_BSWAP_DATA |
GRC_MODE_WSWAP_NONFRM_DATA);
#ifdef __BIG_ENDIAN
tp->grc_mode |= GRC_MODE_BSWAP_NONFRM_DATA;
#endif
spin_lock_init(&tp->lock);
spin_lock_init(&tp->indirect_lock);
INIT_WORK(&tp->reset_task, tg3_reset_task);
tp->regs = pci_ioremap_bar(pdev, BAR_0);
if (!tp->regs) {
printk(KERN_ERR PFX "Cannot map device registers, "
"aborting.\n");
err = -ENOMEM;
goto err_out_free_dev;
}
tg3_init_link_config(tp);
tp->rx_pending = TG3_DEF_RX_RING_PENDING;
tp->rx_jumbo_pending = TG3_DEF_RX_JUMBO_RING_PENDING;
tp->tx_pending = TG3_DEF_TX_RING_PENDING;
netif_napi_add(dev, &tp->napi, tg3_poll, 64);
dev->ethtool_ops = &tg3_ethtool_ops;
dev->watchdog_timeo = TG3_TX_TIMEOUT;
dev->irq = pdev->irq;
err = tg3_get_invariants(tp);
if (err) {
printk(KERN_ERR PFX "Problem fetching invariants of chip, "
"aborting.\n");
goto err_out_iounmap;
}
if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
dev->netdev_ops = &tg3_netdev_ops;
else
dev->netdev_ops = &tg3_netdev_ops_dma_bug;
/* The EPB bridge inside 5714, 5715, and 5780 and any
* device behind the EPB cannot support DMA addresses > 40-bit.
* On 64-bit systems with IOMMU, use 40-bit dma_mask.
* On 64-bit systems without IOMMU, use 64-bit dma_mask and
* do DMA address check in tg3_start_xmit().
*/
if (tp->tg3_flags2 & TG3_FLG2_IS_5788)
persist_dma_mask = dma_mask = DMA_BIT_MASK(32);
else if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) {
persist_dma_mask = dma_mask = DMA_BIT_MASK(40);
#ifdef CONFIG_HIGHMEM
dma_mask = DMA_BIT_MASK(64);
#endif
} else
persist_dma_mask = dma_mask = DMA_BIT_MASK(64);
/* Configure DMA attributes. */
if (dma_mask > DMA_BIT_MASK(32)) {
err = pci_set_dma_mask(pdev, dma_mask);
if (!err) {
dev->features |= NETIF_F_HIGHDMA;
err = pci_set_consistent_dma_mask(pdev,
persist_dma_mask);
if (err < 0) {
printk(KERN_ERR PFX "Unable to obtain 64 bit "
"DMA for consistent allocations\n");
goto err_out_iounmap;
}
}
}
if (err || dma_mask == DMA_BIT_MASK(32)) {
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
printk(KERN_ERR PFX "No usable DMA configuration, "
"aborting.\n");
goto err_out_iounmap;
}
}
tg3_init_bufmgr_config(tp);
if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0)
tp->fw_needed = FIRMWARE_TG3;
if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
}
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 ||
tp->pci_chip_rev_id == CHIPREV_ID_5705_A0 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 ||
(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0) {
tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
} else {
tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE | TG3_FLG2_TSO_BUG;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)
tp->fw_needed = FIRMWARE_TG3TSO5;
else
tp->fw_needed = FIRMWARE_TG3TSO;
}
/* TSO is on by default on chips that support hardware TSO.
* Firmware TSO on older chips gives lower performance, so it
* is off by default, but can be enabled using ethtool.
*/
if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
if (dev->features & NETIF_F_IP_CSUM)
dev->features |= NETIF_F_TSO;
if ((dev->features & NETIF_F_IPV6_CSUM) &&
(tp->tg3_flags2 & TG3_FLG2_HW_TSO_2))
dev->features |= NETIF_F_TSO6;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
dev->features |= NETIF_F_TSO_ECN;
}
if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 &&
!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH)) {
tp->tg3_flags2 |= TG3_FLG2_MAX_RXPEND_64;
tp->rx_pending = 63;
}
err = tg3_get_device_address(tp);
if (err) {
printk(KERN_ERR PFX "Could not obtain valid ethernet address, "
"aborting.\n");
goto err_out_fw;
}
if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
tp->aperegs = pci_ioremap_bar(pdev, BAR_2);
if (!tp->aperegs) {
printk(KERN_ERR PFX "Cannot map APE registers, "
"aborting.\n");
err = -ENOMEM;
goto err_out_fw;
}
tg3_ape_lock_init(tp);
if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
tg3_read_dash_ver(tp);
}
/*
* Reset chip in case UNDI or EFI driver did not shutdown
* DMA self test will enable WDMAC and we'll see (spurious)
* pending DMA on the PCI bus at that point.
*/
if ((tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE) ||
(tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
tw32(MEMARB_MODE, MEMARB_MODE_ENABLE);
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
}
err = tg3_test_dma(tp);
if (err) {
printk(KERN_ERR PFX "DMA engine test failed, aborting.\n");
goto err_out_apeunmap;
}
/* flow control autonegotiation is default behavior */
tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
tp->link_config.flowctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
tg3_init_coal(tp);
pci_set_drvdata(pdev, dev);
err = register_netdev(dev);
if (err) {
printk(KERN_ERR PFX "Cannot register net device, "
"aborting.\n");
goto err_out_apeunmap;
}
printk(KERN_INFO "%s: Tigon3 [partno(%s) rev %04x] (%s) MAC address %pM\n",
dev->name,
tp->board_part_number,
tp->pci_chip_rev_id,
tg3_bus_string(tp, str),
dev->dev_addr);
if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED)
printk(KERN_INFO
"%s: attached PHY driver [%s] (mii_bus:phy_addr=%s)\n",
tp->dev->name,
tp->mdio_bus->phy_map[PHY_ADDR]->drv->name,
dev_name(&tp->mdio_bus->phy_map[PHY_ADDR]->dev));
else
printk(KERN_INFO
"%s: attached PHY is %s (%s Ethernet) (WireSpeed[%d])\n",
tp->dev->name, tg3_phy_string(tp),
((tp->tg3_flags & TG3_FLAG_10_100_ONLY) ? "10/100Base-TX" :
((tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) ? "1000Base-SX" :
"10/100/1000Base-T")),
(tp->tg3_flags2 & TG3_FLG2_NO_ETH_WIRE_SPEED) == 0);
printk(KERN_INFO "%s: RXcsums[%d] LinkChgREG[%d] MIirq[%d] ASF[%d] TSOcap[%d]\n",
dev->name,
(tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0,
(tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) != 0,
(tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT) != 0,
(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0,
(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) != 0);
printk(KERN_INFO "%s: dma_rwctrl[%08x] dma_mask[%d-bit]\n",
dev->name, tp->dma_rwctrl,
(pdev->dma_mask == DMA_BIT_MASK(32)) ? 32 :
(((u64) pdev->dma_mask == DMA_BIT_MASK(40)) ? 40 : 64));
return 0;
err_out_apeunmap:
if (tp->aperegs) {
iounmap(tp->aperegs);
tp->aperegs = NULL;
}
err_out_fw:
if (tp->fw)
release_firmware(tp->fw);
err_out_iounmap:
if (tp->regs) {
iounmap(tp->regs);
tp->regs = NULL;
}
err_out_free_dev:
free_netdev(dev);
err_out_free_res:
pci_release_regions(pdev);
err_out_disable_pdev:
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
return err;
}
static void __devexit tg3_remove_one(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
if (dev) {
struct tg3 *tp = netdev_priv(dev);
if (tp->fw)
release_firmware(tp->fw);
flush_scheduled_work();
if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
tg3_phy_fini(tp);
tg3_mdio_fini(tp);
}
unregister_netdev(dev);
if (tp->aperegs) {
iounmap(tp->aperegs);
tp->aperegs = NULL;
}
if (tp->regs) {
iounmap(tp->regs);
tp->regs = NULL;
}
free_netdev(dev);
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
}
}
static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct tg3 *tp = netdev_priv(dev);
pci_power_t target_state;
int err;
/* PCI register 4 needs to be saved whether netif_running() or not.
* MSI address and data need to be saved if using MSI and
* netif_running().
*/
pci_save_state(pdev);
if (!netif_running(dev))
return 0;
flush_scheduled_work();
tg3_phy_stop(tp);
tg3_netif_stop(tp);
del_timer_sync(&tp->timer);
tg3_full_lock(tp, 1);
tg3_disable_ints(tp);
tg3_full_unlock(tp);
netif_device_detach(dev);
tg3_full_lock(tp, 0);
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
tg3_full_unlock(tp);
target_state = pdev->pm_cap ? pci_target_state(pdev) : PCI_D3hot;
err = tg3_set_power_state(tp, target_state);
if (err) {
int err2;
tg3_full_lock(tp, 0);
tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
err2 = tg3_restart_hw(tp, 1);
if (err2)
goto out;
tp->timer.expires = jiffies + tp->timer_offset;
add_timer(&tp->timer);
netif_device_attach(dev);
tg3_netif_start(tp);
out:
tg3_full_unlock(tp);
if (!err2)
tg3_phy_start(tp);
}
return err;
}
static int tg3_resume(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct tg3 *tp = netdev_priv(dev);
int err;
pci_restore_state(tp->pdev);
if (!netif_running(dev))
return 0;
err = tg3_set_power_state(tp, PCI_D0);
if (err)
return err;
netif_device_attach(dev);
tg3_full_lock(tp, 0);
tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
err = tg3_restart_hw(tp, 1);
if (err)
goto out;
tp->timer.expires = jiffies + tp->timer_offset;
add_timer(&tp->timer);
tg3_netif_start(tp);
out:
tg3_full_unlock(tp);
if (!err)
tg3_phy_start(tp);
return err;
}
static struct pci_driver tg3_driver = {
.name = DRV_MODULE_NAME,
.id_table = tg3_pci_tbl,
.probe = tg3_init_one,
.remove = __devexit_p(tg3_remove_one),
.suspend = tg3_suspend,
.resume = tg3_resume
};
static int __init tg3_init(void)
{
return pci_register_driver(&tg3_driver);
}
static void __exit tg3_cleanup(void)
{
pci_unregister_driver(&tg3_driver);
}
module_init(tg3_init);
module_exit(tg3_cleanup);
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