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Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband

Browse source 
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband:
  IB/mthca: Always fill MTTs from CPU
  IB/mthca: Merge MR and FMR space on 64-bit systems
  IB/mthca: Fix access to MTT and MPT tables on non-cache-coherent CPUs
  IB/mthca: Give reserved MTTs a separate cache line
  IB/mthca: Fix reserved MTTs calculation on mem-free HCAs
  RDMA/cxgb3: Add driver for Chelsio T3 RNIC
  IB: Remove redundant "_wq" from workqueue names
  RDMA/cma: Increment port number after close to avoid re-use
  IB/ehca: Fix memleak on module unloading
  IB/mthca: Work around gcc bug on sparc64
  IPoIB: Connected mode experimental support
  IB/core: Use ARRAY_SIZE macro for mandatory_table
  IB/mthca: Use correct structure size in call to memset()
This commit is contained in:
Linus Torvalds 2007-02-13 21:16:39 -08:00
commit 93bbad8fe1
46 changed files with 11281 additions and 116 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/infiniband/Kconfig
View file

@ -38,6 +38,7 @@ source "drivers/infiniband/hw/mthca/Kconfig"
source "drivers/infiniband/hw/ipath/Kconfig"
source "drivers/infiniband/hw/ehca/Kconfig"
source "drivers/infiniband/hw/amso1100/Kconfig"
source "drivers/infiniband/hw/cxgb3/Kconfig"
source "drivers/infiniband/ulp/ipoib/Kconfig"

1
drivers/infiniband/Makefile
View file

@ -3,6 +3,7 @@ obj-$(CONFIG_INFINIBAND_MTHCA) += hw/mthca/
obj-$(CONFIG_INFINIBAND_IPATH) += hw/ipath/
obj-$(CONFIG_INFINIBAND_EHCA) += hw/ehca/
obj-$(CONFIG_INFINIBAND_AMSO1100) += hw/amso1100/
obj-$(CONFIG_INFINIBAND_CXGB3) += hw/cxgb3/
obj-$(CONFIG_INFINIBAND_IPOIB) += ulp/ipoib/
obj-$(CONFIG_INFINIBAND_SRP) += ulp/srp/
obj-$(CONFIG_INFINIBAND_ISER) += ulp/iser/

2
drivers/infiniband/core/addr.c
View file

@ -373,7 +373,7 @@ static struct notifier_block nb = {
static int addr_init(void)
{
addr_wq = create_singlethread_workqueue("ib_addr_wq");
addr_wq = create_singlethread_workqueue("ib_addr");
if (!addr_wq)
return -ENOMEM;

70
drivers/infiniband/core/cma.c
View file

@ -71,6 +71,7 @@ static struct workqueue_struct *cma_wq;
static DEFINE_IDR(sdp_ps);
static DEFINE_IDR(tcp_ps);
static DEFINE_IDR(udp_ps);
static int next_port;
struct cma_device {
struct list_head list;
@ -1722,33 +1723,74 @@ static int cma_alloc_port(struct idr *ps, struct rdma_id_private *id_priv,
unsigned short snum)
{
struct rdma_bind_list *bind_list;
int port, start, ret;
int port, ret;
bind_list = kzalloc(sizeof *bind_list, GFP_KERNEL);
if (!bind_list)
return -ENOMEM;
start = snum ? snum : sysctl_local_port_range[0];
do {
ret = idr_get_new_above(ps, bind_list, start, &port);
ret = idr_get_new_above(ps, bind_list, snum, &port);
} while ((ret == -EAGAIN) && idr_pre_get(ps, GFP_KERNEL));
if (ret)
goto err;
goto err1;
if ((snum && port != snum) ||
(!snum && port > sysctl_local_port_range[1])) {
idr_remove(ps, port);
if (port != snum) {
ret = -EADDRNOTAVAIL;
goto err;
goto err2;
}
bind_list->ps = ps;
bind_list->port = (unsigned short) port;
cma_bind_port(bind_list, id_priv);
return 0;
err:
err2:
idr_remove(ps, port);
err1:
kfree(bind_list);
return ret;
}
static int cma_alloc_any_port(struct idr *ps, struct rdma_id_private *id_priv)
{
struct rdma_bind_list *bind_list;
int port, ret;
bind_list = kzalloc(sizeof *bind_list, GFP_KERNEL);
if (!bind_list)
return -ENOMEM;
retry:
do {
ret = idr_get_new_above(ps, bind_list, next_port, &port);
} while ((ret == -EAGAIN) && idr_pre_get(ps, GFP_KERNEL));
if (ret)
goto err1;
if (port > sysctl_local_port_range[1]) {
if (next_port != sysctl_local_port_range[0]) {
idr_remove(ps, port);
next_port = sysctl_local_port_range[0];
goto retry;
}
ret = -EADDRNOTAVAIL;
goto err2;
}
if (port == sysctl_local_port_range[1])
next_port = sysctl_local_port_range[0];
else
next_port = port + 1;
bind_list->ps = ps;
bind_list->port = (unsigned short) port;
cma_bind_port(bind_list, id_priv);
return 0;
err2:
idr_remove(ps, port);
err1:
kfree(bind_list);
return ret;
}
@ -1811,7 +1853,7 @@ static int cma_get_port(struct rdma_id_private *id_priv)
mutex_lock(&lock);
if (cma_any_port(&id_priv->id.route.addr.src_addr))
ret = cma_alloc_port(ps, id_priv, 0);
ret = cma_alloc_any_port(ps, id_priv);
else
ret = cma_use_port(ps, id_priv);
mutex_unlock(&lock);
@ -2448,7 +2490,11 @@ static int cma_init(void)
{
int ret;
cma_wq = create_singlethread_workqueue("rdma_cm_wq");
get_random_bytes(&next_port, sizeof next_port);
next_port = (next_port % (sysctl_local_port_range[1] -
sysctl_local_port_range[0])) +
sysctl_local_port_range[0];
cma_wq = create_singlethread_workqueue("rdma_cm");
if (!cma_wq)
return -ENOMEM;

3
drivers/infiniband/core/device.c
View file

@ -36,6 +36,7 @@
#include <linux/module.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/mutex.h>
@ -93,7 +94,7 @@ static int ib_device_check_mandatory(struct ib_device *device)
};
int i;
for (i = 0; i < sizeof mandatory_table / sizeof mandatory_table[0]; ++i) {
for (i = 0; i < ARRAY_SIZE(mandatory_table); ++i) {
if (!*(void **) ((void *) device + mandatory_table[i].offset)) {
printk(KERN_WARNING "Device %s is missing mandatory function %s\n",
device->name, mandatory_table[i].name);

27
drivers/infiniband/hw/cxgb3/Kconfig Normal file
View file

@ -0,0 +1,27 @@
config INFINIBAND_CXGB3
tristate "Chelsio RDMA Driver"
depends on CHELSIO_T3 && INFINIBAND && INET
select GENERIC_ALLOCATOR
---help---
This is an iWARP/RDMA driver for the Chelsio T3 1GbE and
10GbE adapters.
For general information about Chelsio and our products, visit
our website at <http://www.chelsio.com>.
For customer support, please visit our customer support page at
<http://www.chelsio.com/support.htm>.
Please send feedback to <linux-bugs@chelsio.com>.
To compile this driver as a module, choose M here: the module
will be called iw_cxgb3.
config INFINIBAND_CXGB3_DEBUG
bool "Verbose debugging output"
depends on INFINIBAND_CXGB3
default n
---help---
This option causes the Chelsio RDMA driver to produce copious
amounts of debug messages. Select this if you are developing
the driver or trying to diagnose a problem.

12
drivers/infiniband/hw/cxgb3/Makefile Normal file
View file

@ -0,0 +1,12 @@
EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/cxgb3 \
-I$(TOPDIR)/drivers/infiniband/hw/cxgb3/core
obj-$(CONFIG_INFINIBAND_CXGB3) += iw_cxgb3.o
iw_cxgb3-y := iwch_cm.o iwch_ev.o iwch_cq.o iwch_qp.o iwch_mem.o \
iwch_provider.o iwch.o cxio_hal.o cxio_resource.o
ifdef CONFIG_INFINIBAND_CXGB3_DEBUG
EXTRA_CFLAGS += -DDEBUG
iw_cxgb3-y += cxio_dbg.o
endif

207
drivers/infiniband/hw/cxgb3/cxio_dbg.c Normal file
View file

@ -0,0 +1,207 @@
/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifdef DEBUG
#include <linux/types.h>
#include "common.h"
#include "cxgb3_ioctl.h"
#include "cxio_hal.h"
#include "cxio_wr.h"
void cxio_dump_tpt(struct cxio_rdev *rdev, u32 stag)
{
struct ch_mem_range *m;
u64 *data;
int rc;
int size = 32;
m = kmalloc(sizeof(*m) + size, GFP_ATOMIC);
if (!m) {
PDBG("%s couldn't allocate memory.\n", __FUNCTION__);
return;
}
m->mem_id = MEM_PMRX;
m->addr = (stag>>8) * 32 + rdev->rnic_info.tpt_base;
m->len = size;
PDBG("%s TPT addr 0x%x len %d\n", __FUNCTION__, m->addr, m->len);
rc = rdev->t3cdev_p->ctl(rdev->t3cdev_p, RDMA_GET_MEM, m);
if (rc) {
PDBG("%s toectl returned error %d\n", __FUNCTION__, rc);
kfree(m);
return;
}
data = (u64 *)m->buf;
while (size > 0) {
PDBG("TPT %08x: %016llx\n", m->addr, (unsigned long long) *data);
size -= 8;
data++;
m->addr += 8;
}
kfree(m);
}
void cxio_dump_pbl(struct cxio_rdev *rdev, u32 pbl_addr, uint len, u8 shift)
{
struct ch_mem_range *m;
u64 *data;
int rc;
int size, npages;
shift += 12;
npages = (len + (1ULL << shift) - 1) >> shift;
size = npages * sizeof(u64);
m = kmalloc(sizeof(*m) + size, GFP_ATOMIC);
if (!m) {
PDBG("%s couldn't allocate memory.\n", __FUNCTION__);
return;
}
m->mem_id = MEM_PMRX;
m->addr = pbl_addr;
m->len = size;
PDBG("%s PBL addr 0x%x len %d depth %d\n",
__FUNCTION__, m->addr, m->len, npages);
rc = rdev->t3cdev_p->ctl(rdev->t3cdev_p, RDMA_GET_MEM, m);
if (rc) {
PDBG("%s toectl returned error %d\n", __FUNCTION__, rc);
kfree(m);
return;
}
data = (u64 *)m->buf;
while (size > 0) {
PDBG("PBL %08x: %016llx\n", m->addr, (unsigned long long) *data);
size -= 8;
data++;
m->addr += 8;
}
kfree(m);
}
void cxio_dump_wqe(union t3_wr *wqe)
{
__be64 *data = (__be64 *)wqe;
uint size = (uint)(be64_to_cpu(*data) & 0xff);
if (size == 0)
size = 8;
while (size > 0) {
PDBG("WQE %p: %016llx\n", data,
(unsigned long long) be64_to_cpu(*data));
size--;
data++;
}
}
void cxio_dump_wce(struct t3_cqe *wce)
{
__be64 *data = (__be64 *)wce;
int size = sizeof(*wce);
while (size > 0) {
PDBG("WCE %p: %016llx\n", data,
(unsigned long long) be64_to_cpu(*data));
size -= 8;
data++;
}
}
void cxio_dump_rqt(struct cxio_rdev *rdev, u32 hwtid, int nents)
{
struct ch_mem_range *m;
int size = nents * 64;
u64 *data;
int rc;
m = kmalloc(sizeof(*m) + size, GFP_ATOMIC);
if (!m) {
PDBG("%s couldn't allocate memory.\n", __FUNCTION__);
return;
}
m->mem_id = MEM_PMRX;
m->addr = ((hwtid)<<10) + rdev->rnic_info.rqt_base;
m->len = size;
PDBG("%s RQT addr 0x%x len %d\n", __FUNCTION__, m->addr, m->len);
rc = rdev->t3cdev_p->ctl(rdev->t3cdev_p, RDMA_GET_MEM, m);
if (rc) {
PDBG("%s toectl returned error %d\n", __FUNCTION__, rc);
kfree(m);
return;
}
data = (u64 *)m->buf;
while (size > 0) {
PDBG("RQT %08x: %016llx\n", m->addr, (unsigned long long) *data);
size -= 8;
data++;
m->addr += 8;
}
kfree(m);
}
void cxio_dump_tcb(struct cxio_rdev *rdev, u32 hwtid)
{
struct ch_mem_range *m;
int size = TCB_SIZE;
u32 *data;
int rc;
m = kmalloc(sizeof(*m) + size, GFP_ATOMIC);
if (!m) {
PDBG("%s couldn't allocate memory.\n", __FUNCTION__);
return;
}
m->mem_id = MEM_CM;
m->addr = hwtid * size;
m->len = size;
PDBG("%s TCB %d len %d\n", __FUNCTION__, m->addr, m->len);
rc = rdev->t3cdev_p->ctl(rdev->t3cdev_p, RDMA_GET_MEM, m);
if (rc) {
PDBG("%s toectl returned error %d\n", __FUNCTION__, rc);
kfree(m);
return;
}
data = (u32 *)m->buf;
while (size > 0) {
printk("%2u: %08x %08x %08x %08x %08x %08x %08x %08x\n",
m->addr,
*(data+2), *(data+3), *(data),*(data+1),
*(data+6), *(data+7), *(data+4), *(data+5));
size -= 32;
data += 8;
m->addr += 32;
}
kfree(m);
}
#endif

1280
drivers/infiniband/hw/cxgb3/cxio_hal.c Normal file
View file

File diff suppressed because it is too large Load diff

201
drivers/infiniband/hw/cxgb3/cxio_hal.h Normal file
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@ -0,0 +1,201 @@
/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __CXIO_HAL_H__
#define __CXIO_HAL_H__
#include <linux/list.h>
#include <linux/mutex.h>
#include "t3_cpl.h"
#include "t3cdev.h"
#include "cxgb3_ctl_defs.h"
#include "cxio_wr.h"
#define T3_CTRL_QP_ID FW_RI_SGEEC_START
#define T3_CTL_QP_TID FW_RI_TID_START
#define T3_CTRL_QP_SIZE_LOG2 8
#define T3_CTRL_CQ_ID 0
/* TBD */
#define T3_MAX_NUM_RI (1<<15)
#define T3_MAX_NUM_QP (1<<15)
#define T3_MAX_NUM_CQ (1<<15)
#define T3_MAX_NUM_PD (1<<15)
#define T3_MAX_PBL_SIZE 256
#define T3_MAX_RQ_SIZE 1024
#define T3_MAX_NUM_STAG (1<<15)
#define T3_STAG_UNSET 0xffffffff
#define T3_MAX_DEV_NAME_LEN 32
struct cxio_hal_ctrl_qp {
u32 wptr;
u32 rptr;
struct mutex lock; /* for the wtpr, can sleep */
wait_queue_head_t waitq;/* wait for RspQ/CQE msg */
union t3_wr *workq; /* the work request queue */
dma_addr_t dma_addr; /* pci bus address of the workq */
DECLARE_PCI_UNMAP_ADDR(mapping)
void __iomem *doorbell;
};
struct cxio_hal_resource {
struct kfifo *tpt_fifo;
spinlock_t tpt_fifo_lock;
struct kfifo *qpid_fifo;
spinlock_t qpid_fifo_lock;
struct kfifo *cqid_fifo;
spinlock_t cqid_fifo_lock;
struct kfifo *pdid_fifo;
spinlock_t pdid_fifo_lock;
};
struct cxio_qpid_list {
struct list_head entry;
u32 qpid;
};
struct cxio_ucontext {
struct list_head qpids;
struct mutex lock;
};
struct cxio_rdev {
char dev_name[T3_MAX_DEV_NAME_LEN];
struct t3cdev *t3cdev_p;
struct rdma_info rnic_info;
struct adap_ports port_info;
struct cxio_hal_resource *rscp;
struct cxio_hal_ctrl_qp ctrl_qp;
void *ulp;
unsigned long qpshift;
u32 qpnr;
u32 qpmask;
struct cxio_ucontext uctx;
struct gen_pool *pbl_pool;
struct gen_pool *rqt_pool;
struct list_head entry;
};
static inline int cxio_num_stags(struct cxio_rdev *rdev_p)
{
return min((int)T3_MAX_NUM_STAG, (int)((rdev_p->rnic_info.tpt_top - rdev_p->rnic_info.tpt_base) >> 5));
}
typedef void (*cxio_hal_ev_callback_func_t) (struct cxio_rdev * rdev_p,
struct sk_buff * skb);
#define RSPQ_CQID(rsp) (be32_to_cpu(rsp->cq_ptrid) & 0xffff)
#define RSPQ_CQPTR(rsp) ((be32_to_cpu(rsp->cq_ptrid) >> 16) & 0xffff)
#define RSPQ_GENBIT(rsp) ((be32_to_cpu(rsp->flags) >> 16) & 1)
#define RSPQ_OVERFLOW(rsp) ((be32_to_cpu(rsp->flags) >> 17) & 1)
#define RSPQ_AN(rsp) ((be32_to_cpu(rsp->flags) >> 18) & 1)
#define RSPQ_SE(rsp) ((be32_to_cpu(rsp->flags) >> 19) & 1)
#define RSPQ_NOTIFY(rsp) ((be32_to_cpu(rsp->flags) >> 20) & 1)
#define RSPQ_CQBRANCH(rsp) ((be32_to_cpu(rsp->flags) >> 21) & 1)
#define RSPQ_CREDIT_THRESH(rsp) ((be32_to_cpu(rsp->flags) >> 22) & 1)
struct respQ_msg_t {
__be32 flags; /* flit 0 */
__be32 cq_ptrid;
__be64 rsvd; /* flit 1 */
struct t3_cqe cqe; /* flits 2-3 */
};
enum t3_cq_opcode {
CQ_ARM_AN = 0x2,
CQ_ARM_SE = 0x6,
CQ_FORCE_AN = 0x3,
CQ_CREDIT_UPDATE = 0x7
};
int cxio_rdev_open(struct cxio_rdev *rdev);
void cxio_rdev_close(struct cxio_rdev *rdev);
int cxio_hal_cq_op(struct cxio_rdev *rdev, struct t3_cq *cq,
enum t3_cq_opcode op, u32 credit);
int cxio_hal_clear_qp_ctx(struct cxio_rdev *rdev, u32 qpid);
int cxio_create_cq(struct cxio_rdev *rdev, struct t3_cq *cq);
int cxio_destroy_cq(struct cxio_rdev *rdev, struct t3_cq *cq);
int cxio_resize_cq(struct cxio_rdev *rdev, struct t3_cq *cq);
void cxio_release_ucontext(struct cxio_rdev *rdev, struct cxio_ucontext *uctx);
void cxio_init_ucontext(struct cxio_rdev *rdev, struct cxio_ucontext *uctx);
int cxio_create_qp(struct cxio_rdev *rdev, u32 kernel_domain, struct t3_wq *wq,
struct cxio_ucontext *uctx);
int cxio_destroy_qp(struct cxio_rdev *rdev, struct t3_wq *wq,
struct cxio_ucontext *uctx);
int cxio_peek_cq(struct t3_wq *wr, struct t3_cq *cq, int opcode);
int cxio_allocate_stag(struct cxio_rdev *rdev, u32 * stag, u32 pdid,
enum tpt_mem_perm perm, u32 * pbl_size, u32 * pbl_addr);
int cxio_register_phys_mem(struct cxio_rdev *rdev, u32 * stag, u32 pdid,
enum tpt_mem_perm perm, u32 zbva, u64 to, u32 len,
u8 page_size, __be64 *pbl, u32 *pbl_size,
u32 *pbl_addr);
int cxio_reregister_phys_mem(struct cxio_rdev *rdev, u32 * stag, u32 pdid,
enum tpt_mem_perm perm, u32 zbva, u64 to, u32 len,
u8 page_size, __be64 *pbl, u32 *pbl_size,
u32 *pbl_addr);
int cxio_dereg_mem(struct cxio_rdev *rdev, u32 stag, u32 pbl_size,
u32 pbl_addr);
int cxio_allocate_window(struct cxio_rdev *rdev, u32 * stag, u32 pdid);
int cxio_deallocate_window(struct cxio_rdev *rdev, u32 stag);
int cxio_rdma_init(struct cxio_rdev *rdev, struct t3_rdma_init_attr *attr);
void cxio_register_ev_cb(cxio_hal_ev_callback_func_t ev_cb);
void cxio_unregister_ev_cb(cxio_hal_ev_callback_func_t ev_cb);
u32 cxio_hal_get_rhdl(void);
void cxio_hal_put_rhdl(u32 rhdl);
u32 cxio_hal_get_pdid(struct cxio_hal_resource *rscp);
void cxio_hal_put_pdid(struct cxio_hal_resource *rscp, u32 pdid);
int __init cxio_hal_init(void);
void __exit cxio_hal_exit(void);
void cxio_flush_rq(struct t3_wq *wq, struct t3_cq *cq, int count);
void cxio_flush_sq(struct t3_wq *wq, struct t3_cq *cq, int count);
void cxio_count_rcqes(struct t3_cq *cq, struct t3_wq *wq, int *count);
void cxio_count_scqes(struct t3_cq *cq, struct t3_wq *wq, int *count);
void cxio_flush_hw_cq(struct t3_cq *cq);
int cxio_poll_cq(struct t3_wq *wq, struct t3_cq *cq, struct t3_cqe *cqe,
u8 *cqe_flushed, u64 *cookie, u32 *credit);
#define MOD "iw_cxgb3: "
#define PDBG(fmt, args...) pr_debug(MOD fmt, ## args)
#ifdef DEBUG
void cxio_dump_tpt(struct cxio_rdev *rev, u32 stag);
void cxio_dump_pbl(struct cxio_rdev *rev, u32 pbl_addr, uint len, u8 shift);
void cxio_dump_wqe(union t3_wr *wqe);
void cxio_dump_wce(struct t3_cqe *wce);
void cxio_dump_rqt(struct cxio_rdev *rdev, u32 hwtid, int nents);
void cxio_dump_tcb(struct cxio_rdev *rdev, u32 hwtid);
#endif
#endif

331
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/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/* Crude resource management */
#include <linux/kernel.h>
#include <linux/random.h>
#include <linux/slab.h>
#include <linux/kfifo.h>
#include <linux/spinlock.h>
#include <linux/errno.h>
#include "cxio_resource.h"
#include "cxio_hal.h"
static struct kfifo *rhdl_fifo;
static spinlock_t rhdl_fifo_lock;
#define RANDOM_SIZE 16
static int __cxio_init_resource_fifo(struct kfifo **fifo,
spinlock_t *fifo_lock,
u32 nr, u32 skip_low,
u32 skip_high,
int random)
{
u32 i, j, entry = 0, idx;
u32 random_bytes;
u32 rarray[16];
spin_lock_init(fifo_lock);
*fifo = kfifo_alloc(nr * sizeof(u32), GFP_KERNEL, fifo_lock);
if (IS_ERR(*fifo))
return -ENOMEM;
for (i = 0; i < skip_low + skip_high; i++)
__kfifo_put(*fifo, (unsigned char *) &entry, sizeof(u32));
if (random) {
j = 0;
random_bytes = random32();
for (i = 0; i < RANDOM_SIZE; i++)
rarray[i] = i + skip_low;
for (i = skip_low + RANDOM_SIZE; i < nr - skip_high; i++) {
if (j >= RANDOM_SIZE) {
j = 0;
random_bytes = random32();
}
idx = (random_bytes >> (j * 2)) & 0xF;
__kfifo_put(*fifo,
(unsigned char *) &rarray[idx],
sizeof(u32));
rarray[idx] = i;
j++;
}
for (i = 0; i < RANDOM_SIZE; i++)
__kfifo_put(*fifo,
(unsigned char *) &rarray[i],
sizeof(u32));
} else
for (i = skip_low; i < nr - skip_high; i++)
__kfifo_put(*fifo, (unsigned char *) &i, sizeof(u32));
for (i = 0; i < skip_low + skip_high; i++)
kfifo_get(*fifo, (unsigned char *) &entry, sizeof(u32));
return 0;
}
static int cxio_init_resource_fifo(struct kfifo **fifo, spinlock_t * fifo_lock,
u32 nr, u32 skip_low, u32 skip_high)
{
return (__cxio_init_resource_fifo(fifo, fifo_lock, nr, skip_low,
skip_high, 0));
}
static int cxio_init_resource_fifo_random(struct kfifo **fifo,
spinlock_t * fifo_lock,
u32 nr, u32 skip_low, u32 skip_high)
{
return (__cxio_init_resource_fifo(fifo, fifo_lock, nr, skip_low,
skip_high, 1));
}
static int cxio_init_qpid_fifo(struct cxio_rdev *rdev_p)
{
u32 i;
spin_lock_init(&rdev_p->rscp->qpid_fifo_lock);
rdev_p->rscp->qpid_fifo = kfifo_alloc(T3_MAX_NUM_QP * sizeof(u32),
GFP_KERNEL,
&rdev_p->rscp->qpid_fifo_lock);
if (IS_ERR(rdev_p->rscp->qpid_fifo))
return -ENOMEM;
for (i = 16; i < T3_MAX_NUM_QP; i++)
if (!(i & rdev_p->qpmask))
__kfifo_put(rdev_p->rscp->qpid_fifo,
(unsigned char *) &i, sizeof(u32));
return 0;
}
int cxio_hal_init_rhdl_resource(u32 nr_rhdl)
{
return cxio_init_resource_fifo(&rhdl_fifo, &rhdl_fifo_lock, nr_rhdl, 1,
0);
}
void cxio_hal_destroy_rhdl_resource(void)
{
kfifo_free(rhdl_fifo);
}
/* nr_* must be power of 2 */
int cxio_hal_init_resource(struct cxio_rdev *rdev_p,
u32 nr_tpt, u32 nr_pbl,
u32 nr_rqt, u32 nr_qpid, u32 nr_cqid, u32 nr_pdid)
{
int err = 0;
struct cxio_hal_resource *rscp;
rscp = kmalloc(sizeof(*rscp), GFP_KERNEL);
if (!rscp)
return -ENOMEM;
rdev_p->rscp = rscp;
err = cxio_init_resource_fifo_random(&rscp->tpt_fifo,
&rscp->tpt_fifo_lock,
nr_tpt, 1, 0);
if (err)
goto tpt_err;
err = cxio_init_qpid_fifo(rdev_p);
if (err)
goto qpid_err;
err = cxio_init_resource_fifo(&rscp->cqid_fifo, &rscp->cqid_fifo_lock,
nr_cqid, 1, 0);
if (err)
goto cqid_err;
err = cxio_init_resource_fifo(&rscp->pdid_fifo, &rscp->pdid_fifo_lock,
nr_pdid, 1, 0);
if (err)
goto pdid_err;
return 0;
pdid_err:
kfifo_free(rscp->cqid_fifo);
cqid_err:
kfifo_free(rscp->qpid_fifo);
qpid_err:
kfifo_free(rscp->tpt_fifo);
tpt_err:
return -ENOMEM;
}
/*
* returns 0 if no resource available
*/
static inline u32 cxio_hal_get_resource(struct kfifo *fifo)
{
u32 entry;
if (kfifo_get(fifo, (unsigned char *) &entry, sizeof(u32)))
return entry;
else
return 0; /* fifo emptry */
}
static inline void cxio_hal_put_resource(struct kfifo *fifo, u32 entry)
{
BUG_ON(kfifo_put(fifo, (unsigned char *) &entry, sizeof(u32)) == 0);
}
u32 cxio_hal_get_rhdl(void)
{
return cxio_hal_get_resource(rhdl_fifo);
}
void cxio_hal_put_rhdl(u32 rhdl)
{
cxio_hal_put_resource(rhdl_fifo, rhdl);
}
u32 cxio_hal_get_stag(struct cxio_hal_resource *rscp)
{
return cxio_hal_get_resource(rscp->tpt_fifo);
}
void cxio_hal_put_stag(struct cxio_hal_resource *rscp, u32 stag)
{
cxio_hal_put_resource(rscp->tpt_fifo, stag);
}
u32 cxio_hal_get_qpid(struct cxio_hal_resource *rscp)
{
u32 qpid = cxio_hal_get_resource(rscp->qpid_fifo);
PDBG("%s qpid 0x%x\n", __FUNCTION__, qpid);
return qpid;
}
void cxio_hal_put_qpid(struct cxio_hal_resource *rscp, u32 qpid)
{
PDBG("%s qpid 0x%x\n", __FUNCTION__, qpid);
cxio_hal_put_resource(rscp->qpid_fifo, qpid);
}
u32 cxio_hal_get_cqid(struct cxio_hal_resource *rscp)
{
return cxio_hal_get_resource(rscp->cqid_fifo);
}
void cxio_hal_put_cqid(struct cxio_hal_resource *rscp, u32 cqid)
{
cxio_hal_put_resource(rscp->cqid_fifo, cqid);
}
u32 cxio_hal_get_pdid(struct cxio_hal_resource *rscp)
{
return cxio_hal_get_resource(rscp->pdid_fifo);
}
void cxio_hal_put_pdid(struct cxio_hal_resource *rscp, u32 pdid)
{
cxio_hal_put_resource(rscp->pdid_fifo, pdid);
}
void cxio_hal_destroy_resource(struct cxio_hal_resource *rscp)
{
kfifo_free(rscp->tpt_fifo);
kfifo_free(rscp->cqid_fifo);
kfifo_free(rscp->qpid_fifo);
kfifo_free(rscp->pdid_fifo);
kfree(rscp);
}
/*
* PBL Memory Manager. Uses Linux generic allocator.
*/
#define MIN_PBL_SHIFT 8 /* 256B == min PBL size (32 entries) */
#define PBL_CHUNK 2*1024*1024
u32 cxio_hal_pblpool_alloc(struct cxio_rdev *rdev_p, int size)
{
unsigned long addr = gen_pool_alloc(rdev_p->pbl_pool, size);
PDBG("%s addr 0x%x size %d\n", __FUNCTION__, (u32)addr, size);
return (u32)addr;
}
void cxio_hal_pblpool_free(struct cxio_rdev *rdev_p, u32 addr, int size)
{
PDBG("%s addr 0x%x size %d\n", __FUNCTION__, addr, size);
gen_pool_free(rdev_p->pbl_pool, (unsigned long)addr, size);
}
int cxio_hal_pblpool_create(struct cxio_rdev *rdev_p)
{
unsigned long i;
rdev_p->pbl_pool = gen_pool_create(MIN_PBL_SHIFT, -1);
if (rdev_p->pbl_pool)
for (i = rdev_p->rnic_info.pbl_base;
i <= rdev_p->rnic_info.pbl_top - PBL_CHUNK + 1;
i += PBL_CHUNK)
gen_pool_add(rdev_p->pbl_pool, i, PBL_CHUNK, -1);
return rdev_p->pbl_pool ? 0 : -ENOMEM;
}
void cxio_hal_pblpool_destroy(struct cxio_rdev *rdev_p)
{
gen_pool_destroy(rdev_p->pbl_pool);
}
/*
* RQT Memory Manager. Uses Linux generic allocator.
*/
#define MIN_RQT_SHIFT 10 /* 1KB == mini RQT size (16 entries) */
#define RQT_CHUNK 2*1024*1024
u32 cxio_hal_rqtpool_alloc(struct cxio_rdev *rdev_p, int size)
{
unsigned long addr = gen_pool_alloc(rdev_p->rqt_pool, size << 6);
PDBG("%s addr 0x%x size %d\n", __FUNCTION__, (u32)addr, size << 6);
return (u32)addr;
}
void cxio_hal_rqtpool_free(struct cxio_rdev *rdev_p, u32 addr, int size)
{
PDBG("%s addr 0x%x size %d\n", __FUNCTION__, addr, size << 6);
gen_pool_free(rdev_p->rqt_pool, (unsigned long)addr, size << 6);
}
int cxio_hal_rqtpool_create(struct cxio_rdev *rdev_p)
{
unsigned long i;
rdev_p->rqt_pool = gen_pool_create(MIN_RQT_SHIFT, -1);
if (rdev_p->rqt_pool)
for (i = rdev_p->rnic_info.rqt_base;
i <= rdev_p->rnic_info.rqt_top - RQT_CHUNK + 1;
i += RQT_CHUNK)
gen_pool_add(rdev_p->rqt_pool, i, RQT_CHUNK, -1);
return rdev_p->rqt_pool ? 0 : -ENOMEM;
}
void cxio_hal_rqtpool_destroy(struct cxio_rdev *rdev_p)
{
gen_pool_destroy(rdev_p->rqt_pool);
}

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drivers/infiniband/hw/cxgb3/cxio_resource.h Normal file
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/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __CXIO_RESOURCE_H__
#define __CXIO_RESOURCE_H__
#include <linux/kernel.h>
#include <linux/random.h>
#include <linux/slab.h>
#include <linux/kfifo.h>
#include <linux/spinlock.h>
#include <linux/errno.h>
#include <linux/genalloc.h>
#include "cxio_hal.h"
extern int cxio_hal_init_rhdl_resource(u32 nr_rhdl);
extern void cxio_hal_destroy_rhdl_resource(void);
extern int cxio_hal_init_resource(struct cxio_rdev *rdev_p,
u32 nr_tpt, u32 nr_pbl,
u32 nr_rqt, u32 nr_qpid, u32 nr_cqid,
u32 nr_pdid);
extern u32 cxio_hal_get_stag(struct cxio_hal_resource *rscp);
extern void cxio_hal_put_stag(struct cxio_hal_resource *rscp, u32 stag);
extern u32 cxio_hal_get_qpid(struct cxio_hal_resource *rscp);
extern void cxio_hal_put_qpid(struct cxio_hal_resource *rscp, u32 qpid);
extern u32 cxio_hal_get_cqid(struct cxio_hal_resource *rscp);
extern void cxio_hal_put_cqid(struct cxio_hal_resource *rscp, u32 cqid);
extern void cxio_hal_destroy_resource(struct cxio_hal_resource *rscp);
#define PBL_OFF(rdev_p, a) ( (a) - (rdev_p)->rnic_info.pbl_base )
extern int cxio_hal_pblpool_create(struct cxio_rdev *rdev_p);
extern void cxio_hal_pblpool_destroy(struct cxio_rdev *rdev_p);
extern u32 cxio_hal_pblpool_alloc(struct cxio_rdev *rdev_p, int size);
extern void cxio_hal_pblpool_free(struct cxio_rdev *rdev_p, u32 addr, int size);
#define RQT_OFF(rdev_p, a) ( (a) - (rdev_p)->rnic_info.rqt_base )
extern int cxio_hal_rqtpool_create(struct cxio_rdev *rdev_p);
extern void cxio_hal_rqtpool_destroy(struct cxio_rdev *rdev_p);
extern u32 cxio_hal_rqtpool_alloc(struct cxio_rdev *rdev_p, int size);
extern void cxio_hal_rqtpool_free(struct cxio_rdev *rdev_p, u32 addr, int size);
#endif

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drivers/infiniband/hw/cxgb3/cxio_wr.h Normal file
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/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __CXIO_WR_H__
#define __CXIO_WR_H__
#include <asm/io.h>
#include <linux/pci.h>
#include <linux/timer.h>
#include "firmware_exports.h"
#define T3_MAX_SGE 4
#define Q_EMPTY(rptr,wptr) ((rptr)==(wptr))
#define Q_FULL(rptr,wptr,size_log2) ( (((wptr)-(rptr))>>(size_log2)) && \
((rptr)!=(wptr)) )
#define Q_GENBIT(ptr,size_log2) (!(((ptr)>>size_log2)&0x1))
#define Q_FREECNT(rptr,wptr,size_log2) ((1UL<<size_log2)-((wptr)-(rptr)))
#define Q_COUNT(rptr,wptr) ((wptr)-(rptr))
#define Q_PTR2IDX(ptr,size_log2) (ptr & ((1UL<<size_log2)-1))
static inline void ring_doorbell(void __iomem *doorbell, u32 qpid)
{
writel(((1<<31) | qpid), doorbell);
}
#define SEQ32_GE(x,y) (!( (((u32) (x)) - ((u32) (y))) & 0x80000000 ))
enum t3_wr_flags {
T3_COMPLETION_FLAG = 0x01,
T3_NOTIFY_FLAG = 0x02,
T3_SOLICITED_EVENT_FLAG = 0x04,
T3_READ_FENCE_FLAG = 0x08,
T3_LOCAL_FENCE_FLAG = 0x10
} __attribute__ ((packed));
enum t3_wr_opcode {
T3_WR_BP = FW_WROPCODE_RI_BYPASS,
T3_WR_SEND = FW_WROPCODE_RI_SEND,
T3_WR_WRITE = FW_WROPCODE_RI_RDMA_WRITE,
T3_WR_READ = FW_WROPCODE_RI_RDMA_READ,
T3_WR_INV_STAG = FW_WROPCODE_RI_LOCAL_INV,
T3_WR_BIND = FW_WROPCODE_RI_BIND_MW,
T3_WR_RCV = FW_WROPCODE_RI_RECEIVE,
T3_WR_INIT = FW_WROPCODE_RI_RDMA_INIT,
T3_WR_QP_MOD = FW_WROPCODE_RI_MODIFY_QP
} __attribute__ ((packed));
enum t3_rdma_opcode {
T3_RDMA_WRITE, /* IETF RDMAP v1.0 ... */
T3_READ_REQ,
T3_READ_RESP,
T3_SEND,
T3_SEND_WITH_INV,
T3_SEND_WITH_SE,
T3_SEND_WITH_SE_INV,
T3_TERMINATE,
T3_RDMA_INIT, /* CHELSIO RI specific ... */
T3_BIND_MW,
T3_FAST_REGISTER,
T3_LOCAL_INV,
T3_QP_MOD,
T3_BYPASS
} __attribute__ ((packed));
static inline enum t3_rdma_opcode wr2opcode(enum t3_wr_opcode wrop)
{
switch (wrop) {
case T3_WR_BP: return T3_BYPASS;
case T3_WR_SEND: return T3_SEND;
case T3_WR_WRITE: return T3_RDMA_WRITE;
case T3_WR_READ: return T3_READ_REQ;
case T3_WR_INV_STAG: return T3_LOCAL_INV;
case T3_WR_BIND: return T3_BIND_MW;
case T3_WR_INIT: return T3_RDMA_INIT;
case T3_WR_QP_MOD: return T3_QP_MOD;
default: break;
}
return -1;
}
/* Work request id */
union t3_wrid {
struct {
u32 hi;
u32 low;
} id0;
u64 id1;
};
#define WRID(wrid) (wrid.id1)
#define WRID_GEN(wrid) (wrid.id0.wr_gen)
#define WRID_IDX(wrid) (wrid.id0.wr_idx)
#define WRID_LO(wrid) (wrid.id0.wr_lo)
struct fw_riwrh {
__be32 op_seop_flags;
__be32 gen_tid_len;
};
#define S_FW_RIWR_OP 24
#define M_FW_RIWR_OP 0xff
#define V_FW_RIWR_OP(x) ((x) << S_FW_RIWR_OP)
#define G_FW_RIWR_OP(x) ((((x) >> S_FW_RIWR_OP)) & M_FW_RIWR_OP)
#define S_FW_RIWR_SOPEOP 22
#define M_FW_RIWR_SOPEOP 0x3
#define V_FW_RIWR_SOPEOP(x) ((x) << S_FW_RIWR_SOPEOP)
#define S_FW_RIWR_FLAGS 8
#define M_FW_RIWR_FLAGS 0x3fffff
#define V_FW_RIWR_FLAGS(x) ((x) << S_FW_RIWR_FLAGS)
#define G_FW_RIWR_FLAGS(x) ((((x) >> S_FW_RIWR_FLAGS)) & M_FW_RIWR_FLAGS)
#define S_FW_RIWR_TID 8
#define V_FW_RIWR_TID(x) ((x) << S_FW_RIWR_TID)
#define S_FW_RIWR_LEN 0
#define V_FW_RIWR_LEN(x) ((x) << S_FW_RIWR_LEN)
#define S_FW_RIWR_GEN 31
#define V_FW_RIWR_GEN(x) ((x) << S_FW_RIWR_GEN)
struct t3_sge {
__be32 stag;
__be32 len;
__be64 to;
};
/* If num_sgle is zero, flit 5+ contains immediate data.*/
struct t3_send_wr {
struct fw_riwrh wrh; /* 0 */
union t3_wrid wrid; /* 1 */
u8 rdmaop; /* 2 */
u8 reserved[3];
__be32 rem_stag;
__be32 plen; /* 3 */
__be32 num_sgle;
struct t3_sge sgl[T3_MAX_SGE]; /* 4+ */
};
struct t3_local_inv_wr {
struct fw_riwrh wrh; /* 0 */
union t3_wrid wrid; /* 1 */
__be32 stag; /* 2 */
__be32 reserved3;
};
struct t3_rdma_write_wr {
struct fw_riwrh wrh; /* 0 */
union t3_wrid wrid; /* 1 */
u8 rdmaop; /* 2 */
u8 reserved[3];
__be32 stag_sink;
__be64 to_sink; /* 3 */
__be32 plen; /* 4 */
__be32 num_sgle;
struct t3_sge sgl[T3_MAX_SGE]; /* 5+ */
};
struct t3_rdma_read_wr {
struct fw_riwrh wrh; /* 0 */
union t3_wrid wrid; /* 1 */
u8 rdmaop; /* 2 */
u8 reserved[3];
__be32 rem_stag;
__be64 rem_to; /* 3 */
__be32 local_stag; /* 4 */
__be32 local_len;
__be64 local_to; /* 5 */
};
enum t3_addr_type {
T3_VA_BASED_TO = 0x0,
T3_ZERO_BASED_TO = 0x1
} __attribute__ ((packed));
enum t3_mem_perms {
T3_MEM_ACCESS_LOCAL_READ = 0x1,
T3_MEM_ACCESS_LOCAL_WRITE = 0x2,
T3_MEM_ACCESS_REM_READ = 0x4,
T3_MEM_ACCESS_REM_WRITE = 0x8
} __attribute__ ((packed));
struct t3_bind_mw_wr {
struct fw_riwrh wrh; /* 0 */
union t3_wrid wrid; /* 1 */
u16 reserved; /* 2 */
u8 type;
u8 perms;
__be32 mr_stag;
__be32 mw_stag; /* 3 */
__be32 mw_len;
__be64 mw_va; /* 4 */
__be32 mr_pbl_addr; /* 5 */
u8 reserved2[3];
u8 mr_pagesz;
};
struct t3_receive_wr {
struct fw_riwrh wrh; /* 0 */
union t3_wrid wrid; /* 1 */
u8 pagesz[T3_MAX_SGE];
__be32 num_sgle; /* 2 */
struct t3_sge sgl[T3_MAX_SGE]; /* 3+ */
__be32 pbl_addr[T3_MAX_SGE];
};
struct t3_bypass_wr {
struct fw_riwrh wrh;
union t3_wrid wrid; /* 1 */
};
struct t3_modify_qp_wr {
struct fw_riwrh wrh; /* 0 */
union t3_wrid wrid; /* 1 */
__be32 flags; /* 2 */
__be32 quiesce; /* 2 */
__be32 max_ird; /* 3 */
__be32 max_ord; /* 3 */
__be64 sge_cmd; /* 4 */
__be64 ctx1; /* 5 */
__be64 ctx0; /* 6 */
};
enum t3_modify_qp_flags {
MODQP_QUIESCE = 0x01,
MODQP_MAX_IRD = 0x02,
MODQP_MAX_ORD = 0x04,
MODQP_WRITE_EC = 0x08,
MODQP_READ_EC = 0x10,
};
enum t3_mpa_attrs {
uP_RI_MPA_RX_MARKER_ENABLE = 0x1,
uP_RI_MPA_TX_MARKER_ENABLE = 0x2,
uP_RI_MPA_CRC_ENABLE = 0x4,
uP_RI_MPA_IETF_ENABLE = 0x8
} __attribute__ ((packed));
enum t3_qp_caps {
uP_RI_QP_RDMA_READ_ENABLE = 0x01,
uP_RI_QP_RDMA_WRITE_ENABLE = 0x02,
uP_RI_QP_BIND_ENABLE = 0x04,
uP_RI_QP_FAST_REGISTER_ENABLE = 0x08,
uP_RI_QP_STAG0_ENABLE = 0x10
} __attribute__ ((packed));
struct t3_rdma_init_attr {
u32 tid;
u32 qpid;
u32 pdid;
u32 scqid;
u32 rcqid;
u32 rq_addr;
u32 rq_size;
enum t3_mpa_attrs mpaattrs;
enum t3_qp_caps qpcaps;
u16 tcp_emss;
u32 ord;
u32 ird;
u64 qp_dma_addr;
u32 qp_dma_size;
u32 flags;
};
struct t3_rdma_init_wr {
struct fw_riwrh wrh; /* 0 */
union t3_wrid wrid; /* 1 */
__be32 qpid; /* 2 */
__be32 pdid;
__be32 scqid; /* 3 */
__be32 rcqid;
__be32 rq_addr; /* 4 */
__be32 rq_size;
u8 mpaattrs; /* 5 */
u8 qpcaps;
__be16 ulpdu_size;
__be32 flags; /* bits 31-1 - reservered */
/* bit 0 - set if RECV posted */
__be32 ord; /* 6 */
__be32 ird;
__be64 qp_dma_addr; /* 7 */
__be32 qp_dma_size; /* 8 */
u32 rsvd;
};
struct t3_genbit {
u64 flit[15];
__be64 genbit;
};
enum rdma_init_wr_flags {
RECVS_POSTED = 1,
};
union t3_wr {
struct t3_send_wr send;
struct t3_rdma_write_wr write;
struct t3_rdma_read_wr read;
struct t3_receive_wr recv;
struct t3_local_inv_wr local_inv;
struct t3_bind_mw_wr bind;
struct t3_bypass_wr bypass;
struct t3_rdma_init_wr init;
struct t3_modify_qp_wr qp_mod;
struct t3_genbit genbit;
u64 flit[16];
};
#define T3_SQ_CQE_FLIT 13
#define T3_SQ_COOKIE_FLIT 14
#define T3_RQ_COOKIE_FLIT 13
#define T3_RQ_CQE_FLIT 14
static inline enum t3_wr_opcode fw_riwrh_opcode(struct fw_riwrh *wqe)
{
return G_FW_RIWR_OP(be32_to_cpu(wqe->op_seop_flags));
}
static inline void build_fw_riwrh(struct fw_riwrh *wqe, enum t3_wr_opcode op,
enum t3_wr_flags flags, u8 genbit, u32 tid,
u8 len)
{
wqe->op_seop_flags = cpu_to_be32(V_FW_RIWR_OP(op) |
V_FW_RIWR_SOPEOP(M_FW_RIWR_SOPEOP) |
V_FW_RIWR_FLAGS(flags));
wmb();
wqe->gen_tid_len = cpu_to_be32(V_FW_RIWR_GEN(genbit) |
V_FW_RIWR_TID(tid) |
V_FW_RIWR_LEN(len));
/* 2nd gen bit... */
((union t3_wr *)wqe)->genbit.genbit = cpu_to_be64(genbit);
}
/*
* T3 ULP2_TX commands
*/
enum t3_utx_mem_op {
T3_UTX_MEM_READ = 2,
T3_UTX_MEM_WRITE = 3
};
/* T3 MC7 RDMA TPT entry format */
enum tpt_mem_type {
TPT_NON_SHARED_MR = 0x0,
TPT_SHARED_MR = 0x1,
TPT_MW = 0x2,
TPT_MW_RELAXED_PROTECTION = 0x3
};
enum tpt_addr_type {
TPT_ZBTO = 0,
TPT_VATO = 1
};
enum tpt_mem_perm {
TPT_LOCAL_READ = 0x8,
TPT_LOCAL_WRITE = 0x4,
TPT_REMOTE_READ = 0x2,
TPT_REMOTE_WRITE = 0x1
};
struct tpt_entry {
__be32 valid_stag_pdid;
__be32 flags_pagesize_qpid;
__be32 rsvd_pbl_addr;
__be32 len;
__be32 va_hi;
__be32 va_low_or_fbo;
__be32 rsvd_bind_cnt_or_pstag;
__be32 rsvd_pbl_size;
};
#define S_TPT_VALID 31
#define V_TPT_VALID(x) ((x) << S_TPT_VALID)
#define F_TPT_VALID V_TPT_VALID(1U)
#define S_TPT_STAG_KEY 23
#define M_TPT_STAG_KEY 0xFF
#define V_TPT_STAG_KEY(x) ((x) << S_TPT_STAG_KEY)
#define G_TPT_STAG_KEY(x) (((x) >> S_TPT_STAG_KEY) & M_TPT_STAG_KEY)
#define S_TPT_STAG_STATE 22
#define V_TPT_STAG_STATE(x) ((x) << S_TPT_STAG_STATE)
#define F_TPT_STAG_STATE V_TPT_STAG_STATE(1U)
#define S_TPT_STAG_TYPE 20
#define M_TPT_STAG_TYPE 0x3
#define V_TPT_STAG_TYPE(x) ((x) << S_TPT_STAG_TYPE)
#define G_TPT_STAG_TYPE(x) (((x) >> S_TPT_STAG_TYPE) & M_TPT_STAG_TYPE)
#define S_TPT_PDID 0
#define M_TPT_PDID 0xFFFFF
#define V_TPT_PDID(x) ((x) << S_TPT_PDID)
#define G_TPT_PDID(x) (((x) >> S_TPT_PDID) & M_TPT_PDID)
#define S_TPT_PERM 28
#define M_TPT_PERM 0xF
#define V_TPT_PERM(x) ((x) << S_TPT_PERM)
#define G_TPT_PERM(x) (((x) >> S_TPT_PERM) & M_TPT_PERM)
#define S_TPT_REM_INV_DIS 27
#define V_TPT_REM_INV_DIS(x) ((x) << S_TPT_REM_INV_DIS)
#define F_TPT_REM_INV_DIS V_TPT_REM_INV_DIS(1U)
#define S_TPT_ADDR_TYPE 26
#define V_TPT_ADDR_TYPE(x) ((x) << S_TPT_ADDR_TYPE)
#define F_TPT_ADDR_TYPE V_TPT_ADDR_TYPE(1U)
#define S_TPT_MW_BIND_ENABLE 25
#define V_TPT_MW_BIND_ENABLE(x) ((x) << S_TPT_MW_BIND_ENABLE)
#define F_TPT_MW_BIND_ENABLE V_TPT_MW_BIND_ENABLE(1U)
#define S_TPT_PAGE_SIZE 20
#define M_TPT_PAGE_SIZE 0x1F
#define V_TPT_PAGE_SIZE(x) ((x) << S_TPT_PAGE_SIZE)
#define G_TPT_PAGE_SIZE(x) (((x) >> S_TPT_PAGE_SIZE) & M_TPT_PAGE_SIZE)
#define S_TPT_PBL_ADDR 0
#define M_TPT_PBL_ADDR 0x1FFFFFFF
#define V_TPT_PBL_ADDR(x) ((x) << S_TPT_PBL_ADDR)
#define G_TPT_PBL_ADDR(x) (((x) >> S_TPT_PBL_ADDR) & M_TPT_PBL_ADDR)
#define S_TPT_QPID 0
#define M_TPT_QPID 0xFFFFF
#define V_TPT_QPID(x) ((x) << S_TPT_QPID)
#define G_TPT_QPID(x) (((x) >> S_TPT_QPID) & M_TPT_QPID)
#define S_TPT_PSTAG 0
#define M_TPT_PSTAG 0xFFFFFF
#define V_TPT_PSTAG(x) ((x) << S_TPT_PSTAG)
#define G_TPT_PSTAG(x) (((x) >> S_TPT_PSTAG) & M_TPT_PSTAG)
#define S_TPT_PBL_SIZE 0
#define M_TPT_PBL_SIZE 0xFFFFF
#define V_TPT_PBL_SIZE(x) ((x) << S_TPT_PBL_SIZE)
#define G_TPT_PBL_SIZE(x) (((x) >> S_TPT_PBL_SIZE) & M_TPT_PBL_SIZE)
/*
* CQE defs
*/
struct t3_cqe {
__be32 header;
__be32 len;
union {
struct {
__be32 stag;
__be32 msn;
} rcqe;
struct {
u32 wrid_hi;
u32 wrid_low;
} scqe;
} u;
};
#define S_CQE_OOO 31
#define M_CQE_OOO 0x1
#define G_CQE_OOO(x) ((((x) >> S_CQE_OOO)) & M_CQE_OOO)
#define V_CEQ_OOO(x) ((x)<<S_CQE_OOO)
#define S_CQE_QPID 12
#define M_CQE_QPID 0x7FFFF
#define G_CQE_QPID(x) ((((x) >> S_CQE_QPID)) & M_CQE_QPID)
#define V_CQE_QPID(x) ((x)<<S_CQE_QPID)
#define S_CQE_SWCQE 11
#define M_CQE_SWCQE 0x1
#define G_CQE_SWCQE(x) ((((x) >> S_CQE_SWCQE)) & M_CQE_SWCQE)
#define V_CQE_SWCQE(x) ((x)<<S_CQE_SWCQE)
#define S_CQE_GENBIT 10
#define M_CQE_GENBIT 0x1
#define G_CQE_GENBIT(x) (((x) >> S_CQE_GENBIT) & M_CQE_GENBIT)
#define V_CQE_GENBIT(x) ((x)<<S_CQE_GENBIT)
#define S_CQE_STATUS 5
#define M_CQE_STATUS 0x1F
#define G_CQE_STATUS(x) ((((x) >> S_CQE_STATUS)) & M_CQE_STATUS)
#define V_CQE_STATUS(x) ((x)<<S_CQE_STATUS)
#define S_CQE_TYPE 4
#define M_CQE_TYPE 0x1
#define G_CQE_TYPE(x) ((((x) >> S_CQE_TYPE)) & M_CQE_TYPE)
#define V_CQE_TYPE(x) ((x)<<S_CQE_TYPE)
#define S_CQE_OPCODE 0
#define M_CQE_OPCODE 0xF
#define G_CQE_OPCODE(x) ((((x) >> S_CQE_OPCODE)) & M_CQE_OPCODE)
#define V_CQE_OPCODE(x) ((x)<<S_CQE_OPCODE)
#define SW_CQE(x) (G_CQE_SWCQE(be32_to_cpu((x).header)))
#define CQE_OOO(x) (G_CQE_OOO(be32_to_cpu((x).header)))
#define CQE_QPID(x) (G_CQE_QPID(be32_to_cpu((x).header)))
#define CQE_GENBIT(x) (G_CQE_GENBIT(be32_to_cpu((x).header)))
#define CQE_TYPE(x) (G_CQE_TYPE(be32_to_cpu((x).header)))
#define SQ_TYPE(x) (CQE_TYPE((x)))
#define RQ_TYPE(x) (!CQE_TYPE((x)))
#define CQE_STATUS(x) (G_CQE_STATUS(be32_to_cpu((x).header)))
#define CQE_OPCODE(x) (G_CQE_OPCODE(be32_to_cpu((x).header)))
#define CQE_LEN(x) (be32_to_cpu((x).len))
/* used for RQ completion processing */
#define CQE_WRID_STAG(x) (be32_to_cpu((x).u.rcqe.stag))
#define CQE_WRID_MSN(x) (be32_to_cpu((x).u.rcqe.msn))
/* used for SQ completion processing */
#define CQE_WRID_SQ_WPTR(x) ((x).u.scqe.wrid_hi)
#define CQE_WRID_WPTR(x) ((x).u.scqe.wrid_low)
/* generic accessor macros */
#define CQE_WRID_HI(x) ((x).u.scqe.wrid_hi)
#define CQE_WRID_LOW(x) ((x).u.scqe.wrid_low)
#define TPT_ERR_SUCCESS 0x0
#define TPT_ERR_STAG 0x1 /* STAG invalid: either the */
/* STAG is offlimt, being 0, */
/* or STAG_key mismatch */
#define TPT_ERR_PDID 0x2 /* PDID mismatch */
#define TPT_ERR_QPID 0x3 /* QPID mismatch */
#define TPT_ERR_ACCESS 0x4 /* Invalid access right */
#define TPT_ERR_WRAP 0x5 /* Wrap error */
#define TPT_ERR_BOUND 0x6 /* base and bounds voilation */
#define TPT_ERR_INVALIDATE_SHARED_MR 0x7 /* attempt to invalidate a */
/* shared memory region */
#define TPT_ERR_INVALIDATE_MR_WITH_MW_BOUND 0x8 /* attempt to invalidate a */
/* shared memory region */
#define TPT_ERR_ECC 0x9 /* ECC error detected */
#define TPT_ERR_ECC_PSTAG 0xA /* ECC error detected when */
/* reading PSTAG for a MW */
/* Invalidate */
#define TPT_ERR_PBL_ADDR_BOUND 0xB /* pbl addr out of bounds: */
/* software error */
#define TPT_ERR_SWFLUSH 0xC /* SW FLUSHED */
#define TPT_ERR_CRC 0x10 /* CRC error */
#define TPT_ERR_MARKER 0x11 /* Marker error */
#define TPT_ERR_PDU_LEN_ERR 0x12 /* invalid PDU length */
#define TPT_ERR_OUT_OF_RQE 0x13 /* out of RQE */
#define TPT_ERR_DDP_VERSION 0x14 /* wrong DDP version */
#define TPT_ERR_RDMA_VERSION 0x15 /* wrong RDMA version */
#define TPT_ERR_OPCODE 0x16 /* invalid rdma opcode */
#define TPT_ERR_DDP_QUEUE_NUM 0x17 /* invalid ddp queue number */
#define TPT_ERR_MSN 0x18 /* MSN error */
#define TPT_ERR_TBIT 0x19 /* tag bit not set correctly */
#define TPT_ERR_MO 0x1A /* MO not 0 for TERMINATE */
/* or READ_REQ */
#define TPT_ERR_MSN_GAP 0x1B
#define TPT_ERR_MSN_RANGE 0x1C
#define TPT_ERR_IRD_OVERFLOW 0x1D
#define TPT_ERR_RQE_ADDR_BOUND 0x1E /* RQE addr out of bounds: */
/* software error */
#define TPT_ERR_INTERNAL_ERR 0x1F /* internal error (opcode */
/* mismatch) */
struct t3_swsq {
__u64 wr_id;
struct t3_cqe cqe;
__u32 sq_wptr;
__be32 read_len;
int opcode;
int complete;
int signaled;
};
/*
* A T3 WQ implements both the SQ and RQ.
*/
struct t3_wq {
union t3_wr *queue; /* DMA accessable memory */
dma_addr_t dma_addr; /* DMA address for HW */
DECLARE_PCI_UNMAP_ADDR(mapping) /* unmap kruft */
u32 error; /* 1 once we go to ERROR */
u32 qpid;
u32 wptr; /* idx to next available WR slot */
u32 size_log2; /* total wq size */
struct t3_swsq *sq; /* SW SQ */
struct t3_swsq *oldest_read; /* tracks oldest pending read */
u32 sq_wptr; /* sq_wptr - sq_rptr == count of */
u32 sq_rptr; /* pending wrs */
u32 sq_size_log2; /* sq size */
u64 *rq; /* SW RQ (holds consumer wr_ids */
u32 rq_wptr; /* rq_wptr - rq_rptr == count of */
u32 rq_rptr; /* pending wrs */
u64 *rq_oldest_wr; /* oldest wr on the SW RQ */
u32 rq_size_log2; /* rq size */
u32 rq_addr; /* rq adapter address */
void __iomem *doorbell; /* kernel db */
u64 udb; /* user db if any */
};
struct t3_cq {
u32 cqid;
u32 rptr;
u32 wptr;
u32 size_log2;
dma_addr_t dma_addr;
DECLARE_PCI_UNMAP_ADDR(mapping)
struct t3_cqe *queue;
struct t3_cqe *sw_queue;
u32 sw_rptr;
u32 sw_wptr;
};
#define CQ_VLD_ENTRY(ptr,size_log2,cqe) (Q_GENBIT(ptr,size_log2) == \
CQE_GENBIT(*cqe))
static inline void cxio_set_wq_in_error(struct t3_wq *wq)
{
wq->queue->flit[13] = 1;
}
static inline struct t3_cqe *cxio_next_hw_cqe(struct t3_cq *cq)
{
struct t3_cqe *cqe;
cqe = cq->queue + (Q_PTR2IDX(cq->rptr, cq->size_log2));
if (CQ_VLD_ENTRY(cq->rptr, cq->size_log2, cqe))
return cqe;
return NULL;
}
static inline struct t3_cqe *cxio_next_sw_cqe(struct t3_cq *cq)
{
struct t3_cqe *cqe;
if (!Q_EMPTY(cq->sw_rptr, cq->sw_wptr)) {
cqe = cq->sw_queue + (Q_PTR2IDX(cq->sw_rptr, cq->size_log2));
return cqe;
}
return NULL;
}
static inline struct t3_cqe *cxio_next_cqe(struct t3_cq *cq)
{
struct t3_cqe *cqe;
if (!Q_EMPTY(cq->sw_rptr, cq->sw_wptr)) {
cqe = cq->sw_queue + (Q_PTR2IDX(cq->sw_rptr, cq->size_log2));
return cqe;
}
cqe = cq->queue + (Q_PTR2IDX(cq->rptr, cq->size_log2));
if (CQ_VLD_ENTRY(cq->rptr, cq->size_log2, cqe))
return cqe;
return NULL;
}
#endif

189
drivers/infiniband/hw/cxgb3/iwch.c Normal file
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@ -0,0 +1,189 @@
/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <rdma/ib_verbs.h>
#include "cxgb3_offload.h"
#include "iwch_provider.h"
#include "iwch_user.h"
#include "iwch.h"
#include "iwch_cm.h"
#define DRV_VERSION "1.1"
MODULE_AUTHOR("Boyd Faulkner, Steve Wise");
MODULE_DESCRIPTION("Chelsio T3 RDMA Driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(DRV_VERSION);
cxgb3_cpl_handler_func t3c_handlers[NUM_CPL_CMDS];
static void open_rnic_dev(struct t3cdev *);
static void close_rnic_dev(struct t3cdev *);
struct cxgb3_client t3c_client = {
.name = "iw_cxgb3",
.add = open_rnic_dev,
.remove = close_rnic_dev,
.handlers = t3c_handlers,
.redirect = iwch_ep_redirect
};
static LIST_HEAD(dev_list);
static DEFINE_MUTEX(dev_mutex);
static void rnic_init(struct iwch_dev *rnicp)
{
PDBG("%s iwch_dev %p\n", __FUNCTION__, rnicp);
idr_init(&rnicp->cqidr);
idr_init(&rnicp->qpidr);
idr_init(&rnicp->mmidr);
spin_lock_init(&rnicp->lock);
rnicp->attr.vendor_id = 0x168;
rnicp->attr.vendor_part_id = 7;
rnicp->attr.max_qps = T3_MAX_NUM_QP - 32;
rnicp->attr.max_wrs = (1UL << 24) - 1;
rnicp->attr.max_sge_per_wr = T3_MAX_SGE;
rnicp->attr.max_sge_per_rdma_write_wr = T3_MAX_SGE;
rnicp->attr.max_cqs = T3_MAX_NUM_CQ - 1;
rnicp->attr.max_cqes_per_cq = (1UL << 24) - 1;
rnicp->attr.max_mem_regs = cxio_num_stags(&rnicp->rdev);
rnicp->attr.max_phys_buf_entries = T3_MAX_PBL_SIZE;
rnicp->attr.max_pds = T3_MAX_NUM_PD - 1;
rnicp->attr.mem_pgsizes_bitmask = 0x7FFF; /* 4KB-128MB */
rnicp->attr.can_resize_wq = 0;
rnicp->attr.max_rdma_reads_per_qp = 8;
rnicp->attr.max_rdma_read_resources =
rnicp->attr.max_rdma_reads_per_qp * rnicp->attr.max_qps;
rnicp->attr.max_rdma_read_qp_depth = 8; /* IRD */
rnicp->attr.max_rdma_read_depth =
rnicp->attr.max_rdma_read_qp_depth * rnicp->attr.max_qps;
rnicp->attr.rq_overflow_handled = 0;
rnicp->attr.can_modify_ird = 0;
rnicp->attr.can_modify_ord = 0;
rnicp->attr.max_mem_windows = rnicp->attr.max_mem_regs - 1;
rnicp->attr.stag0_value = 1;
rnicp->attr.zbva_support = 1;
rnicp->attr.local_invalidate_fence = 1;
rnicp->attr.cq_overflow_detection = 1;
return;
}
static void open_rnic_dev(struct t3cdev *tdev)
{
struct iwch_dev *rnicp;
static int vers_printed;
PDBG("%s t3cdev %p\n", __FUNCTION__, tdev);
if (!vers_printed++)
printk(KERN_INFO MOD "Chelsio T3 RDMA Driver - version %s\n",
DRV_VERSION);
rnicp = (struct iwch_dev *)ib_alloc_device(sizeof(*rnicp));
if (!rnicp) {
printk(KERN_ERR MOD "Cannot allocate ib device\n");
return;
}
rnicp->rdev.ulp = rnicp;
rnicp->rdev.t3cdev_p = tdev;
mutex_lock(&dev_mutex);
if (cxio_rdev_open(&rnicp->rdev)) {
mutex_unlock(&dev_mutex);
printk(KERN_ERR MOD "Unable to open CXIO rdev\n");
ib_dealloc_device(&rnicp->ibdev);
return;
}
rnic_init(rnicp);
list_add_tail(&rnicp->entry, &dev_list);
mutex_unlock(&dev_mutex);
if (iwch_register_device(rnicp)) {
printk(KERN_ERR MOD "Unable to register device\n");
close_rnic_dev(tdev);
}
printk(KERN_INFO MOD "Initialized device %s\n",
pci_name(rnicp->rdev.rnic_info.pdev));
return;
}
static void close_rnic_dev(struct t3cdev *tdev)
{
struct iwch_dev *dev, *tmp;
PDBG("%s t3cdev %p\n", __FUNCTION__, tdev);
mutex_lock(&dev_mutex);
list_for_each_entry_safe(dev, tmp, &dev_list, entry) {
if (dev->rdev.t3cdev_p == tdev) {
list_del(&dev->entry);
iwch_unregister_device(dev);
cxio_rdev_close(&dev->rdev);
idr_destroy(&dev->cqidr);
idr_destroy(&dev->qpidr);
idr_destroy(&dev->mmidr);
ib_dealloc_device(&dev->ibdev);
break;
}
}
mutex_unlock(&dev_mutex);
}
static int __init iwch_init_module(void)
{
int err;
err = cxio_hal_init();
if (err)
return err;
err = iwch_cm_init();
if (err)
return err;
cxio_register_ev_cb(iwch_ev_dispatch);
cxgb3_register_client(&t3c_client);
return 0;
}
static void __exit iwch_exit_module(void)
{
cxgb3_unregister_client(&t3c_client);
cxio_unregister_ev_cb(iwch_ev_dispatch);
iwch_cm_term();
cxio_hal_exit();
}
module_init(iwch_init_module);
module_exit(iwch_exit_module);

177
drivers/infiniband/hw/cxgb3/iwch.h Normal file
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/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __IWCH_H__
#define __IWCH_H__
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/idr.h>
#include <rdma/ib_verbs.h>
#include "cxio_hal.h"
#include "cxgb3_offload.h"
struct iwch_pd;
struct iwch_cq;
struct iwch_qp;
struct iwch_mr;
struct iwch_rnic_attributes {
u32 vendor_id;
u32 vendor_part_id;
u32 max_qps;
u32 max_wrs; /* Max for any SQ/RQ */
u32 max_sge_per_wr;
u32 max_sge_per_rdma_write_wr; /* for RDMA Write WR */
u32 max_cqs;
u32 max_cqes_per_cq;
u32 max_mem_regs;
u32 max_phys_buf_entries; /* for phys buf list */
u32 max_pds;
/*
* The memory page sizes supported by this RNIC.
* Bit position i in bitmap indicates page of
* size (4k)^i. Phys block list mode unsupported.
*/
u32 mem_pgsizes_bitmask;
u8 can_resize_wq;
/*
* The maximum number of RDMA Reads that can be outstanding
* per QP with this RNIC as the target.
*/
u32 max_rdma_reads_per_qp;
/*
* The maximum number of resources used for RDMA Reads
* by this RNIC with this RNIC as the target.
*/
u32 max_rdma_read_resources;
/*
* The max depth per QP for initiation of RDMA Read
* by this RNIC.
*/
u32 max_rdma_read_qp_depth;
/*
* The maximum depth for initiation of RDMA Read
* operations by this RNIC on all QPs
*/
u32 max_rdma_read_depth;
u8 rq_overflow_handled;
u32 can_modify_ird;
u32 can_modify_ord;
u32 max_mem_windows;
u32 stag0_value;
u8 zbva_support;
u8 local_invalidate_fence;
u32 cq_overflow_detection;
};
struct iwch_dev {
struct ib_device ibdev;
struct cxio_rdev rdev;
u32 device_cap_flags;
struct iwch_rnic_attributes attr;
struct idr cqidr;
struct idr qpidr;
struct idr mmidr;
spinlock_t lock;
struct list_head entry;
};
static inline struct iwch_dev *to_iwch_dev(struct ib_device *ibdev)
{
return container_of(ibdev, struct iwch_dev, ibdev);
}
static inline int t3b_device(const struct iwch_dev *rhp)
{
return rhp->rdev.t3cdev_p->type == T3B;
}
static inline int t3a_device(const struct iwch_dev *rhp)
{
return rhp->rdev.t3cdev_p->type == T3A;
}
static inline struct iwch_cq *get_chp(struct iwch_dev *rhp, u32 cqid)
{
return idr_find(&rhp->cqidr, cqid);
}
static inline struct iwch_qp *get_qhp(struct iwch_dev *rhp, u32 qpid)
{
return idr_find(&rhp->qpidr, qpid);
}
static inline struct iwch_mr *get_mhp(struct iwch_dev *rhp, u32 mmid)
{
return idr_find(&rhp->mmidr, mmid);
}
static inline int insert_handle(struct iwch_dev *rhp, struct idr *idr,
void *handle, u32 id)
{
int ret;
u32 newid;
do {
if (!idr_pre_get(idr, GFP_KERNEL)) {
return -ENOMEM;
}
spin_lock_irq(&rhp->lock);
ret = idr_get_new_above(idr, handle, id, &newid);
BUG_ON(newid != id);
spin_unlock_irq(&rhp->lock);
} while (ret == -EAGAIN);
return ret;
}
static inline void remove_handle(struct iwch_dev *rhp, struct idr *idr, u32 id)
{
spin_lock_irq(&rhp->lock);
idr_remove(idr, id);
spin_unlock_irq(&rhp->lock);
}
extern struct cxgb3_client t3c_client;
extern cxgb3_cpl_handler_func t3c_handlers[NUM_CPL_CMDS];
extern void iwch_ev_dispatch(struct cxio_rdev *rdev_p, struct sk_buff *skb);
#endif

2081
drivers/infiniband/hw/cxgb3/iwch_cm.c Normal file
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File diff suppressed because it is too large Load diff

223
drivers/infiniband/hw/cxgb3/iwch_cm.h Normal file
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/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _IWCH_CM_H_
#define _IWCH_CM_H_
#include <linux/inet.h>
#include <linux/wait.h>
#include <linux/spinlock.h>
#include <linux/kref.h>
#include <rdma/ib_verbs.h>
#include <rdma/iw_cm.h>
#include "cxgb3_offload.h"
#include "iwch_provider.h"
#define MPA_KEY_REQ "MPA ID Req Frame"
#define MPA_KEY_REP "MPA ID Rep Frame"
#define MPA_MAX_PRIVATE_DATA 256
#define MPA_REV 0 /* XXX - amso1100 uses rev 0 ! */
#define MPA_REJECT 0x20
#define MPA_CRC 0x40
#define MPA_MARKERS 0x80
#define MPA_FLAGS_MASK 0xE0
#define put_ep(ep) { \
PDBG("put_ep (via %s:%u) ep %p refcnt %d\n", __FUNCTION__, __LINE__, \
ep, atomic_read(&((ep)->kref.refcount))); \
kref_put(&((ep)->kref), __free_ep); \
}
#define get_ep(ep) { \
PDBG("get_ep (via %s:%u) ep %p, refcnt %d\n", __FUNCTION__, __LINE__, \
ep, atomic_read(&((ep)->kref.refcount))); \
kref_get(&((ep)->kref)); \
}
struct mpa_message {
u8 key[16];
u8 flags;
u8 revision;
__be16 private_data_size;
u8 private_data[0];
};
struct terminate_message {
u8 layer_etype;
u8 ecode;
__be16 hdrct_rsvd;
u8 len_hdrs[0];
};
#define TERM_MAX_LENGTH (sizeof(struct terminate_message) + 2 + 18 + 28)
enum iwch_layers_types {
LAYER_RDMAP = 0x00,
LAYER_DDP = 0x10,
LAYER_MPA = 0x20,
RDMAP_LOCAL_CATA = 0x00,
RDMAP_REMOTE_PROT = 0x01,
RDMAP_REMOTE_OP = 0x02,
DDP_LOCAL_CATA = 0x00,
DDP_TAGGED_ERR = 0x01,
DDP_UNTAGGED_ERR = 0x02,
DDP_LLP = 0x03
};
enum iwch_rdma_ecodes {
RDMAP_INV_STAG = 0x00,
RDMAP_BASE_BOUNDS = 0x01,
RDMAP_ACC_VIOL = 0x02,
RDMAP_STAG_NOT_ASSOC = 0x03,
RDMAP_TO_WRAP = 0x04,
RDMAP_INV_VERS = 0x05,
RDMAP_INV_OPCODE = 0x06,
RDMAP_STREAM_CATA = 0x07,
RDMAP_GLOBAL_CATA = 0x08,
RDMAP_CANT_INV_STAG = 0x09,
RDMAP_UNSPECIFIED = 0xff
};
enum iwch_ddp_ecodes {
DDPT_INV_STAG = 0x00,
DDPT_BASE_BOUNDS = 0x01,
DDPT_STAG_NOT_ASSOC = 0x02,
DDPT_TO_WRAP = 0x03,
DDPT_INV_VERS = 0x04,
DDPU_INV_QN = 0x01,
DDPU_INV_MSN_NOBUF = 0x02,
DDPU_INV_MSN_RANGE = 0x03,
DDPU_INV_MO = 0x04,
DDPU_MSG_TOOBIG = 0x05,
DDPU_INV_VERS = 0x06
};
enum iwch_mpa_ecodes {
MPA_CRC_ERR = 0x02,
MPA_MARKER_ERR = 0x03
};
enum iwch_ep_state {
IDLE = 0,
LISTEN,
CONNECTING,
MPA_REQ_WAIT,
MPA_REQ_SENT,
MPA_REQ_RCVD,
MPA_REP_SENT,
FPDU_MODE,
ABORTING,
CLOSING,
MORIBUND,
DEAD,
};
struct iwch_ep_common {
struct iw_cm_id *cm_id;
struct iwch_qp *qp;
struct t3cdev *tdev;
enum iwch_ep_state state;
struct kref kref;
spinlock_t lock;
struct sockaddr_in local_addr;
struct sockaddr_in remote_addr;
wait_queue_head_t waitq;
int rpl_done;
int rpl_err;
};
struct iwch_listen_ep {
struct iwch_ep_common com;
unsigned int stid;
int backlog;
};
struct iwch_ep {
struct iwch_ep_common com;
struct iwch_ep *parent_ep;
struct timer_list timer;
unsigned int atid;
u32 hwtid;
u32 snd_seq;
struct l2t_entry *l2t;
struct dst_entry *dst;
struct sk_buff *mpa_skb;
struct iwch_mpa_attributes mpa_attr;
unsigned int mpa_pkt_len;
u8 mpa_pkt[sizeof(struct mpa_message) + MPA_MAX_PRIVATE_DATA];
u8 tos;
u16 emss;
u16 plen;
u32 ird;
u32 ord;
};
static inline struct iwch_ep *to_ep(struct iw_cm_id *cm_id)
{
return cm_id->provider_data;
}
static inline struct iwch_listen_ep *to_listen_ep(struct iw_cm_id *cm_id)
{
return cm_id->provider_data;
}
static inline int compute_wscale(int win)
{
int wscale = 0;
while (wscale < 14 && (65535<<wscale) < win)
wscale++;
return wscale;
}
/* CM prototypes */
int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
int iwch_create_listen(struct iw_cm_id *cm_id, int backlog);
int iwch_destroy_listen(struct iw_cm_id *cm_id);
int iwch_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len);
int iwch_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
int iwch_ep_disconnect(struct iwch_ep *ep, int abrupt, gfp_t gfp);
int iwch_quiesce_tid(struct iwch_ep *ep);
int iwch_resume_tid(struct iwch_ep *ep);
void __free_ep(struct kref *kref);
void iwch_rearp(struct iwch_ep *ep);
int iwch_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new, struct l2t_entry *l2t);
int __init iwch_cm_init(void);
void __exit iwch_cm_term(void);
#endif /* _IWCH_CM_H_ */

225
drivers/infiniband/hw/cxgb3/iwch_cq.c Normal file
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@ -0,0 +1,225 @@
/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "iwch_provider.h"
#include "iwch.h"
/*
* Get one cq entry from cxio and map it to openib.
*
* Returns:
* 0 EMPTY;
* 1 cqe returned
* -EAGAIN caller must try again
* any other -errno fatal error
*/
static int iwch_poll_cq_one(struct iwch_dev *rhp, struct iwch_cq *chp,
struct ib_wc *wc)
{
struct iwch_qp *qhp = NULL;
struct t3_cqe cqe, *rd_cqe;
struct t3_wq *wq;
u32 credit = 0;
u8 cqe_flushed;
u64 cookie;
int ret = 1;
rd_cqe = cxio_next_cqe(&chp->cq);
if (!rd_cqe)
return 0;
qhp = get_qhp(rhp, CQE_QPID(*rd_cqe));
if (!qhp)
wq = NULL;
else {
spin_lock(&qhp->lock);
wq = &(qhp->wq);
}
ret = cxio_poll_cq(wq, &(chp->cq), &cqe, &cqe_flushed, &cookie,
&credit);
if (t3a_device(chp->rhp) && credit) {
PDBG("%s updating %d cq credits on id %d\n", __FUNCTION__,
credit, chp->cq.cqid);
cxio_hal_cq_op(&rhp->rdev, &chp->cq, CQ_CREDIT_UPDATE, credit);
}
if (ret) {
ret = -EAGAIN;
goto out;
}
ret = 1;
wc->wr_id = cookie;
wc->qp = &qhp->ibqp;
wc->vendor_err = CQE_STATUS(cqe);
PDBG("%s qpid 0x%x type %d opcode %d status 0x%x wrid hi 0x%x "
"lo 0x%x cookie 0x%llx\n", __FUNCTION__,
CQE_QPID(cqe), CQE_TYPE(cqe),
CQE_OPCODE(cqe), CQE_STATUS(cqe), CQE_WRID_HI(cqe),
CQE_WRID_LOW(cqe), (unsigned long long) cookie);
if (CQE_TYPE(cqe) == 0) {
if (!CQE_STATUS(cqe))
wc->byte_len = CQE_LEN(cqe);
else
wc->byte_len = 0;
wc->opcode = IB_WC_RECV;
} else {
switch (CQE_OPCODE(cqe)) {
case T3_RDMA_WRITE:
wc->opcode = IB_WC_RDMA_WRITE;
break;
case T3_READ_REQ:
wc->opcode = IB_WC_RDMA_READ;
wc->byte_len = CQE_LEN(cqe);
break;
case T3_SEND:
case T3_SEND_WITH_SE:
wc->opcode = IB_WC_SEND;
break;
case T3_BIND_MW:
wc->opcode = IB_WC_BIND_MW;
break;
/* these aren't supported yet */
case T3_SEND_WITH_INV:
case T3_SEND_WITH_SE_INV:
case T3_LOCAL_INV:
case T3_FAST_REGISTER:
default:
printk(KERN_ERR MOD "Unexpected opcode %d "
"in the CQE received for QPID=0x%0x\n",
CQE_OPCODE(cqe), CQE_QPID(cqe));
ret = -EINVAL;
goto out;
}
}
if (cqe_flushed)
wc->status = IB_WC_WR_FLUSH_ERR;
else {
switch (CQE_STATUS(cqe)) {
case TPT_ERR_SUCCESS:
wc->status = IB_WC_SUCCESS;
break;
case TPT_ERR_STAG:
wc->status = IB_WC_LOC_ACCESS_ERR;
break;
case TPT_ERR_PDID:
wc->status = IB_WC_LOC_PROT_ERR;
break;
case TPT_ERR_QPID:
case TPT_ERR_ACCESS:
wc->status = IB_WC_LOC_ACCESS_ERR;
break;
case TPT_ERR_WRAP:
wc->status = IB_WC_GENERAL_ERR;
break;
case TPT_ERR_BOUND:
wc->status = IB_WC_LOC_LEN_ERR;
break;
case TPT_ERR_INVALIDATE_SHARED_MR:
case TPT_ERR_INVALIDATE_MR_WITH_MW_BOUND:
wc->status = IB_WC_MW_BIND_ERR;
break;
case TPT_ERR_CRC:
case TPT_ERR_MARKER:
case TPT_ERR_PDU_LEN_ERR:
case TPT_ERR_OUT_OF_RQE:
case TPT_ERR_DDP_VERSION:
case TPT_ERR_RDMA_VERSION:
case TPT_ERR_DDP_QUEUE_NUM:
case TPT_ERR_MSN:
case TPT_ERR_TBIT:
case TPT_ERR_MO:
case TPT_ERR_MSN_RANGE:
case TPT_ERR_IRD_OVERFLOW:
case TPT_ERR_OPCODE:
wc->status = IB_WC_FATAL_ERR;
break;
case TPT_ERR_SWFLUSH:
wc->status = IB_WC_WR_FLUSH_ERR;
break;
default:
printk(KERN_ERR MOD "Unexpected cqe_status 0x%x for "
"QPID=0x%0x\n", CQE_STATUS(cqe), CQE_QPID(cqe));
ret = -EINVAL;
}
}
out:
if (wq)
spin_unlock(&qhp->lock);
return ret;
}
int iwch_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
{
struct iwch_dev *rhp;
struct iwch_cq *chp;
unsigned long flags;
int npolled;
int err = 0;
chp = to_iwch_cq(ibcq);
rhp = chp->rhp;
spin_lock_irqsave(&chp->lock, flags);
for (npolled = 0; npolled < num_entries; ++npolled) {
#ifdef DEBUG
int i=0;
#endif
/*
* Because T3 can post CQEs that are _not_ associated
* with a WR, we might have to poll again after removing
* one of these.
*/
do {
err = iwch_poll_cq_one(rhp, chp, wc + npolled);
#ifdef DEBUG
BUG_ON(++i > 1000);
#endif
} while (err == -EAGAIN);
if (err <= 0)
break;
}
spin_unlock_irqrestore(&chp->lock, flags);
if (err < 0)
return err;
else {
return npolled;
}
}

231
drivers/infiniband/hw/cxgb3/iwch_ev.c Normal file
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@ -0,0 +1,231 @@
/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/slab.h>
#include <linux/mman.h>
#include <net/sock.h>
#include "iwch_provider.h"
#include "iwch.h"
#include "iwch_cm.h"
#include "cxio_hal.h"
#include "cxio_wr.h"
static void post_qp_event(struct iwch_dev *rnicp, struct iwch_cq *chp,
struct respQ_msg_t *rsp_msg,
enum ib_event_type ib_event,
int send_term)
{
struct ib_event event;
struct iwch_qp_attributes attrs;
struct iwch_qp *qhp;
printk(KERN_ERR "%s - AE qpid 0x%x opcode %d status 0x%x "
"type %d wrid.hi 0x%x wrid.lo 0x%x \n", __FUNCTION__,
CQE_QPID(rsp_msg->cqe), CQE_OPCODE(rsp_msg->cqe),
CQE_STATUS(rsp_msg->cqe), CQE_TYPE(rsp_msg->cqe),
CQE_WRID_HI(rsp_msg->cqe), CQE_WRID_LOW(rsp_msg->cqe));
spin_lock(&rnicp->lock);
qhp = get_qhp(rnicp, CQE_QPID(rsp_msg->cqe));
if (!qhp) {
printk(KERN_ERR "%s unaffiliated error 0x%x qpid 0x%x\n",
__FUNCTION__, CQE_STATUS(rsp_msg->cqe),
CQE_QPID(rsp_msg->cqe));
spin_unlock(&rnicp->lock);
return;
}
if ((qhp->attr.state == IWCH_QP_STATE_ERROR) ||
(qhp->attr.state == IWCH_QP_STATE_TERMINATE)) {
PDBG("%s AE received after RTS - "
"qp state %d qpid 0x%x status 0x%x\n", __FUNCTION__,
qhp->attr.state, qhp->wq.qpid, CQE_STATUS(rsp_msg->cqe));
spin_unlock(&rnicp->lock);
return;
}
atomic_inc(&qhp->refcnt);
spin_unlock(&rnicp->lock);
event.event = ib_event;
event.device = chp->ibcq.device;
if (ib_event == IB_EVENT_CQ_ERR)
event.element.cq = &chp->ibcq;
else
event.element.qp = &qhp->ibqp;
if (qhp->ibqp.event_handler)
(*qhp->ibqp.event_handler)(&event, qhp->ibqp.qp_context);
if (qhp->attr.state == IWCH_QP_STATE_RTS) {
attrs.next_state = IWCH_QP_STATE_TERMINATE;
iwch_modify_qp(qhp->rhp, qhp, IWCH_QP_ATTR_NEXT_STATE,
&attrs, 1);
if (send_term)
iwch_post_terminate(qhp, rsp_msg);
}
if (atomic_dec_and_test(&qhp->refcnt))
wake_up(&qhp->wait);
}
void iwch_ev_dispatch(struct cxio_rdev *rdev_p, struct sk_buff *skb)
{
struct iwch_dev *rnicp;
struct respQ_msg_t *rsp_msg = (struct respQ_msg_t *) skb->data;
struct iwch_cq *chp;
struct iwch_qp *qhp;
u32 cqid = RSPQ_CQID(rsp_msg);
rnicp = (struct iwch_dev *) rdev_p->ulp;
spin_lock(&rnicp->lock);
chp = get_chp(rnicp, cqid);
qhp = get_qhp(rnicp, CQE_QPID(rsp_msg->cqe));
if (!chp || !qhp) {
printk(KERN_ERR MOD "BAD AE cqid 0x%x qpid 0x%x opcode %d "
"status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x \n",
cqid, CQE_QPID(rsp_msg->cqe),
CQE_OPCODE(rsp_msg->cqe), CQE_STATUS(rsp_msg->cqe),
CQE_TYPE(rsp_msg->cqe), CQE_WRID_HI(rsp_msg->cqe),
CQE_WRID_LOW(rsp_msg->cqe));
spin_unlock(&rnicp->lock);
goto out;
}
iwch_qp_add_ref(&qhp->ibqp);
atomic_inc(&chp->refcnt);
spin_unlock(&rnicp->lock);
/*
* 1) completion of our sending a TERMINATE.
* 2) incoming TERMINATE message.
*/
if ((CQE_OPCODE(rsp_msg->cqe) == T3_TERMINATE) &&
(CQE_STATUS(rsp_msg->cqe) == 0)) {
if (SQ_TYPE(rsp_msg->cqe)) {
PDBG("%s QPID 0x%x ep %p disconnecting\n",
__FUNCTION__, qhp->wq.qpid, qhp->ep);
iwch_ep_disconnect(qhp->ep, 0, GFP_ATOMIC);
} else {
PDBG("%s post REQ_ERR AE QPID 0x%x\n", __FUNCTION__,
qhp->wq.qpid);
post_qp_event(rnicp, chp, rsp_msg,
IB_EVENT_QP_REQ_ERR, 0);
iwch_ep_disconnect(qhp->ep, 0, GFP_ATOMIC);
}
goto done;
}
/* Bad incoming Read request */
if (SQ_TYPE(rsp_msg->cqe) &&
(CQE_OPCODE(rsp_msg->cqe) == T3_READ_RESP)) {
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_REQ_ERR, 1);
goto done;
}
/* Bad incoming write */
if (RQ_TYPE(rsp_msg->cqe) &&
(CQE_OPCODE(rsp_msg->cqe) == T3_RDMA_WRITE)) {
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_REQ_ERR, 1);
goto done;
}
switch (CQE_STATUS(rsp_msg->cqe)) {
/* Completion Events */
case TPT_ERR_SUCCESS:
/*
* Confirm the destination entry if this is a RECV completion.
*/
if (qhp->ep && SQ_TYPE(rsp_msg->cqe))
dst_confirm(qhp->ep->dst);
(*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
break;
case TPT_ERR_STAG:
case TPT_ERR_PDID:
case TPT_ERR_QPID:
case TPT_ERR_ACCESS:
case TPT_ERR_WRAP:
case TPT_ERR_BOUND:
case TPT_ERR_INVALIDATE_SHARED_MR:
case TPT_ERR_INVALIDATE_MR_WITH_MW_BOUND:
printk(KERN_ERR "%s - CQE Err qpid 0x%x opcode %d status 0x%x "
"type %d wrid.hi 0x%x wrid.lo 0x%x \n", __FUNCTION__,
CQE_QPID(rsp_msg->cqe), CQE_OPCODE(rsp_msg->cqe),
CQE_STATUS(rsp_msg->cqe), CQE_TYPE(rsp_msg->cqe),
CQE_WRID_HI(rsp_msg->cqe), CQE_WRID_LOW(rsp_msg->cqe));
(*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_ACCESS_ERR, 1);
break;
/* Device Fatal Errors */
case TPT_ERR_ECC:
case TPT_ERR_ECC_PSTAG:
case TPT_ERR_INTERNAL_ERR:
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_DEVICE_FATAL, 1);
break;
/* QP Fatal Errors */
case TPT_ERR_OUT_OF_RQE:
case TPT_ERR_PBL_ADDR_BOUND:
case TPT_ERR_CRC:
case TPT_ERR_MARKER:
case TPT_ERR_PDU_LEN_ERR:
case TPT_ERR_DDP_VERSION:
case TPT_ERR_RDMA_VERSION:
case TPT_ERR_OPCODE:
case TPT_ERR_DDP_QUEUE_NUM:
case TPT_ERR_MSN:
case TPT_ERR_TBIT:
case TPT_ERR_MO:
case TPT_ERR_MSN_GAP:
case TPT_ERR_MSN_RANGE:
case TPT_ERR_RQE_ADDR_BOUND:
case TPT_ERR_IRD_OVERFLOW:
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_FATAL, 1);
break;
default:
printk(KERN_ERR MOD "Unknown T3 status 0x%x QPID 0x%x\n",
CQE_STATUS(rsp_msg->cqe), qhp->wq.qpid);
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_FATAL, 1);
break;
}
done:
if (atomic_dec_and_test(&chp->refcnt))
wake_up(&chp->wait);
iwch_qp_rem_ref(&qhp->ibqp);
out:
dev_kfree_skb_irq(skb);
}

172
drivers/infiniband/hw/cxgb3/iwch_mem.c Normal file
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/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <asm/byteorder.h>
#include <rdma/iw_cm.h>
#include <rdma/ib_verbs.h>
#include "cxio_hal.h"
#include "iwch.h"
#include "iwch_provider.h"
int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php,
struct iwch_mr *mhp,
int shift,
__be64 *page_list)
{
u32 stag;
u32 mmid;
if (cxio_register_phys_mem(&rhp->rdev,
&stag, mhp->attr.pdid,
mhp->attr.perms,
mhp->attr.zbva,
mhp->attr.va_fbo,
mhp->attr.len,
shift-12,
page_list,
&mhp->attr.pbl_size, &mhp->attr.pbl_addr))
return -ENOMEM;
mhp->attr.state = 1;
mhp->attr.stag = stag;
mmid = stag >> 8;
mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
insert_handle(rhp, &rhp->mmidr, mhp, mmid);
PDBG("%s mmid 0x%x mhp %p\n", __FUNCTION__, mmid, mhp);
return 0;
}
int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php,
struct iwch_mr *mhp,
int shift,
__be64 *page_list,
int npages)
{
u32 stag;
u32 mmid;
/* We could support this... */
if (npages > mhp->attr.pbl_size)
return -ENOMEM;
stag = mhp->attr.stag;
if (cxio_reregister_phys_mem(&rhp->rdev,
&stag, mhp->attr.pdid,
mhp->attr.perms,
mhp->attr.zbva,
mhp->attr.va_fbo,
mhp->attr.len,
shift-12,
page_list,
&mhp->attr.pbl_size, &mhp->attr.pbl_addr))
return -ENOMEM;
mhp->attr.state = 1;
mhp->attr.stag = stag;
mmid = stag >> 8;
mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
insert_handle(rhp, &rhp->mmidr, mhp, mmid);
PDBG("%s mmid 0x%x mhp %p\n", __FUNCTION__, mmid, mhp);
return 0;
}
int build_phys_page_list(struct ib_phys_buf *buffer_list,
int num_phys_buf,
u64 *iova_start,
u64 *total_size,
int *npages,
int *shift,
__be64 **page_list)
{
u64 mask;
int i, j, n;
mask = 0;
*total_size = 0;
for (i = 0; i < num_phys_buf; ++i) {
if (i != 0 && buffer_list[i].addr & ~PAGE_MASK)
return -EINVAL;
if (i != 0 && i != num_phys_buf - 1 &&
(buffer_list[i].size & ~PAGE_MASK))
return -EINVAL;
*total_size += buffer_list[i].size;
if (i > 0)
mask |= buffer_list[i].addr;
}
if (*total_size > 0xFFFFFFFFULL)
return -ENOMEM;
/* Find largest page shift we can use to cover buffers */
for (*shift = PAGE_SHIFT; *shift < 27; ++(*shift))
if (num_phys_buf > 1) {
if ((1ULL << *shift) & mask)
break;
} else
if (1ULL << *shift >=
buffer_list[0].size +
(buffer_list[0].addr & ((1ULL << *shift) - 1)))
break;
buffer_list[0].size += buffer_list[0].addr & ((1ULL << *shift) - 1);
buffer_list[0].addr &= ~0ull << *shift;
*npages = 0;
for (i = 0; i < num_phys_buf; ++i)
*npages += (buffer_list[i].size +
(1ULL << *shift) - 1) >> *shift;
if (!*npages)
return -EINVAL;
*page_list = kmalloc(sizeof(u64) * *npages, GFP_KERNEL);
if (!*page_list)
return -ENOMEM;
n = 0;
for (i = 0; i < num_phys_buf; ++i)
for (j = 0;
j < (buffer_list[i].size + (1ULL << *shift) - 1) >> *shift;
++j)
(*page_list)[n++] = cpu_to_be64(buffer_list[i].addr +
((u64) j << *shift));
PDBG("%s va 0x%llx mask 0x%llx shift %d len %lld pbl_size %d\n",
__FUNCTION__, (unsigned long long) *iova_start,
(unsigned long long) mask, *shift, (unsigned long long) *total_size,
*npages);
return 0;
}

1203
drivers/infiniband/hw/cxgb3/iwch_provider.c Normal file
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367
drivers/infiniband/hw/cxgb3/iwch_provider.h Normal file
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@ -0,0 +1,367 @@
/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __IWCH_PROVIDER_H__
#define __IWCH_PROVIDER_H__
#include <linux/list.h>
#include <linux/spinlock.h>
#include <rdma/ib_verbs.h>
#include <asm/types.h>
#include "t3cdev.h"
#include "iwch.h"
#include "cxio_wr.h"
#include "cxio_hal.h"
struct iwch_pd {
struct ib_pd ibpd;
u32 pdid;
struct iwch_dev *rhp;
};
static inline struct iwch_pd *to_iwch_pd(struct ib_pd *ibpd)
{
return container_of(ibpd, struct iwch_pd, ibpd);
}
struct tpt_attributes {
u32 stag;
u32 state:1;
u32 type:2;
u32 rsvd:1;
enum tpt_mem_perm perms;
u32 remote_invaliate_disable:1;
u32 zbva:1;
u32 mw_bind_enable:1;
u32 page_size:5;
u32 pdid;
u32 qpid;
u32 pbl_addr;
u32 len;
u64 va_fbo;
u32 pbl_size;
};
struct iwch_mr {
struct ib_mr ibmr;
struct iwch_dev *rhp;
u64 kva;
struct tpt_attributes attr;
};
typedef struct iwch_mw iwch_mw_handle;
static inline struct iwch_mr *to_iwch_mr(struct ib_mr *ibmr)
{
return container_of(ibmr, struct iwch_mr, ibmr);
}
struct iwch_mw {
struct ib_mw ibmw;
struct iwch_dev *rhp;
u64 kva;
struct tpt_attributes attr;
};
static inline struct iwch_mw *to_iwch_mw(struct ib_mw *ibmw)
{
return container_of(ibmw, struct iwch_mw, ibmw);
}
struct iwch_cq {
struct ib_cq ibcq;
struct iwch_dev *rhp;
struct t3_cq cq;
spinlock_t lock;
atomic_t refcnt;
wait_queue_head_t wait;
u32 __user *user_rptr_addr;
};
static inline struct iwch_cq *to_iwch_cq(struct ib_cq *ibcq)
{
return container_of(ibcq, struct iwch_cq, ibcq);
}
enum IWCH_QP_FLAGS {
QP_QUIESCED = 0x01
};
struct iwch_mpa_attributes {
u8 recv_marker_enabled;
u8 xmit_marker_enabled; /* iWARP: enable inbound Read Resp. */
u8 crc_enabled;
u8 version; /* 0 or 1 */
};
struct iwch_qp_attributes {
u32 scq;
u32 rcq;
u32 sq_num_entries;
u32 rq_num_entries;
u32 sq_max_sges;
u32 sq_max_sges_rdma_write;
u32 rq_max_sges;
u32 state;
u8 enable_rdma_read;
u8 enable_rdma_write; /* enable inbound Read Resp. */
u8 enable_bind;
u8 enable_mmid0_fastreg; /* Enable STAG0 + Fast-register */
/*
* Next QP state. If specify the current state, only the
* QP attributes will be modified.
*/
u32 max_ord;
u32 max_ird;
u32 pd; /* IN */
u32 next_state;
char terminate_buffer[52];
u32 terminate_msg_len;
u8 is_terminate_local;
struct iwch_mpa_attributes mpa_attr; /* IN-OUT */
struct iwch_ep *llp_stream_handle;
char *stream_msg_buf; /* Last stream msg. before Idle -> RTS */
u32 stream_msg_buf_len; /* Only on Idle -> RTS */
};
struct iwch_qp {
struct ib_qp ibqp;
struct iwch_dev *rhp;
struct iwch_ep *ep;
struct iwch_qp_attributes attr;
struct t3_wq wq;
spinlock_t lock;
atomic_t refcnt;
wait_queue_head_t wait;
enum IWCH_QP_FLAGS flags;
struct timer_list timer;
};
static inline int qp_quiesced(struct iwch_qp *qhp)
{
return qhp->flags & QP_QUIESCED;
}
static inline struct iwch_qp *to_iwch_qp(struct ib_qp *ibqp)
{
return container_of(ibqp, struct iwch_qp, ibqp);
}
void iwch_qp_add_ref(struct ib_qp *qp);
void iwch_qp_rem_ref(struct ib_qp *qp);
struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn);
struct iwch_ucontext {
struct ib_ucontext ibucontext;
struct cxio_ucontext uctx;
u32 key;
spinlock_t mmap_lock;
struct list_head mmaps;
};
static inline struct iwch_ucontext *to_iwch_ucontext(struct ib_ucontext *c)
{
return container_of(c, struct iwch_ucontext, ibucontext);
}
struct iwch_mm_entry {
struct list_head entry;
u64 addr;
u32 key;
unsigned len;
};
static inline struct iwch_mm_entry *remove_mmap(struct iwch_ucontext *ucontext,
u32 key, unsigned len)
{
struct list_head *pos, *nxt;
struct iwch_mm_entry *mm;
spin_lock(&ucontext->mmap_lock);
list_for_each_safe(pos, nxt, &ucontext->mmaps) {
mm = list_entry(pos, struct iwch_mm_entry, entry);
if (mm->key == key && mm->len == len) {
list_del_init(&mm->entry);
spin_unlock(&ucontext->mmap_lock);
PDBG("%s key 0x%x addr 0x%llx len %d\n", __FUNCTION__,
key, (unsigned long long) mm->addr, mm->len);
return mm;
}
}
spin_unlock(&ucontext->mmap_lock);
return NULL;
}
static inline void insert_mmap(struct iwch_ucontext *ucontext,
struct iwch_mm_entry *mm)
{
spin_lock(&ucontext->mmap_lock);
PDBG("%s key 0x%x addr 0x%llx len %d\n", __FUNCTION__,
mm->key, (unsigned long long) mm->addr, mm->len);
list_add_tail(&mm->entry, &ucontext->mmaps);
spin_unlock(&ucontext->mmap_lock);
}
enum iwch_qp_attr_mask {
IWCH_QP_ATTR_NEXT_STATE = 1 << 0,
IWCH_QP_ATTR_ENABLE_RDMA_READ = 1 << 7,
IWCH_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8,
IWCH_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9,
IWCH_QP_ATTR_MAX_ORD = 1 << 11,
IWCH_QP_ATTR_MAX_IRD = 1 << 12,
IWCH_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22,
IWCH_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23,
IWCH_QP_ATTR_MPA_ATTR = 1 << 24,
IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25,
IWCH_QP_ATTR_VALID_MODIFY = (IWCH_QP_ATTR_ENABLE_RDMA_READ |
IWCH_QP_ATTR_ENABLE_RDMA_WRITE |
IWCH_QP_ATTR_MAX_ORD |
IWCH_QP_ATTR_MAX_IRD |
IWCH_QP_ATTR_LLP_STREAM_HANDLE |
IWCH_QP_ATTR_STREAM_MSG_BUFFER |
IWCH_QP_ATTR_MPA_ATTR |
IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE)
};
int iwch_modify_qp(struct iwch_dev *rhp,
struct iwch_qp *qhp,
enum iwch_qp_attr_mask mask,
struct iwch_qp_attributes *attrs,
int internal);
enum iwch_qp_state {
IWCH_QP_STATE_IDLE,
IWCH_QP_STATE_RTS,
IWCH_QP_STATE_ERROR,
IWCH_QP_STATE_TERMINATE,
IWCH_QP_STATE_CLOSING,
IWCH_QP_STATE_TOT
};
static inline int iwch_convert_state(enum ib_qp_state ib_state)
{
switch (ib_state) {
case IB_QPS_RESET:
case IB_QPS_INIT:
return IWCH_QP_STATE_IDLE;
case IB_QPS_RTS:
return IWCH_QP_STATE_RTS;
case IB_QPS_SQD:
return IWCH_QP_STATE_CLOSING;
case IB_QPS_SQE:
return IWCH_QP_STATE_TERMINATE;
case IB_QPS_ERR:
return IWCH_QP_STATE_ERROR;
default:
return -1;
}
}
enum iwch_mem_perms {
IWCH_MEM_ACCESS_LOCAL_READ = 1 << 0,
IWCH_MEM_ACCESS_LOCAL_WRITE = 1 << 1,
IWCH_MEM_ACCESS_REMOTE_READ = 1 << 2,
IWCH_MEM_ACCESS_REMOTE_WRITE = 1 << 3,
IWCH_MEM_ACCESS_ATOMICS = 1 << 4,
IWCH_MEM_ACCESS_BINDING = 1 << 5,
IWCH_MEM_ACCESS_LOCAL =
(IWCH_MEM_ACCESS_LOCAL_READ | IWCH_MEM_ACCESS_LOCAL_WRITE),
IWCH_MEM_ACCESS_REMOTE =
(IWCH_MEM_ACCESS_REMOTE_WRITE | IWCH_MEM_ACCESS_REMOTE_READ)
/* cannot go beyond 1 << 31 */
} __attribute__ ((packed));
static inline u32 iwch_convert_access(int acc)
{
return (acc & IB_ACCESS_REMOTE_WRITE ? IWCH_MEM_ACCESS_REMOTE_WRITE : 0)
| (acc & IB_ACCESS_REMOTE_READ ? IWCH_MEM_ACCESS_REMOTE_READ : 0) |
(acc & IB_ACCESS_LOCAL_WRITE ? IWCH_MEM_ACCESS_LOCAL_WRITE : 0) |
(acc & IB_ACCESS_MW_BIND ? IWCH_MEM_ACCESS_BINDING : 0) |
IWCH_MEM_ACCESS_LOCAL_READ;
}
enum iwch_mmid_state {
IWCH_STAG_STATE_VALID,
IWCH_STAG_STATE_INVALID
};
enum iwch_qp_query_flags {
IWCH_QP_QUERY_CONTEXT_NONE = 0x0, /* No ctx; Only attrs */
IWCH_QP_QUERY_CONTEXT_GET = 0x1, /* Get ctx + attrs */
IWCH_QP_QUERY_CONTEXT_SUSPEND = 0x2, /* Not Supported */
/*
* Quiesce QP context; Consumer
* will NOT replay outstanding WR
*/
IWCH_QP_QUERY_CONTEXT_QUIESCE = 0x4,
IWCH_QP_QUERY_CONTEXT_REMOVE = 0x8,
IWCH_QP_QUERY_TEST_USERWRITE = 0x32 /* Test special */
};
int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
struct ib_send_wr **bad_wr);
int iwch_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
struct ib_recv_wr **bad_wr);
int iwch_bind_mw(struct ib_qp *qp,
struct ib_mw *mw,
struct ib_mw_bind *mw_bind);
int iwch_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
int iwch_post_terminate(struct iwch_qp *qhp, struct respQ_msg_t *rsp_msg);
int iwch_register_device(struct iwch_dev *dev);
void iwch_unregister_device(struct iwch_dev *dev);
int iwch_quiesce_qps(struct iwch_cq *chp);
int iwch_resume_qps(struct iwch_cq *chp);
void stop_read_rep_timer(struct iwch_qp *qhp);
int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php,
struct iwch_mr *mhp,
int shift,
__be64 *page_list);
int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php,
struct iwch_mr *mhp,
int shift,
__be64 *page_list,
int npages);
int build_phys_page_list(struct ib_phys_buf *buffer_list,
int num_phys_buf,
u64 *iova_start,
u64 *total_size,
int *npages,
int *shift,
__be64 **page_list);
#define IWCH_NODE_DESC "cxgb3 Chelsio Communications"
#endif

1007
drivers/infiniband/hw/cxgb3/iwch_qp.c Normal file
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67
drivers/infiniband/hw/cxgb3/iwch_user.h Normal file
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/*
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __IWCH_USER_H__
#define __IWCH_USER_H__
#define IWCH_UVERBS_ABI_VERSION 1
/*
* Make sure that all structs defined in this file remain laid out so
* that they pack the same way on 32-bit and 64-bit architectures (to
* avoid incompatibility between 32-bit userspace and 64-bit kernels).
* In particular do not use pointer types -- pass pointers in __u64
* instead.
*/
struct iwch_create_cq_req {
__u64 user_rptr_addr;
};
struct iwch_create_cq_resp {
__u64 key;
__u32 cqid;
__u32 size_log2;
};
struct iwch_create_qp_resp {
__u64 key;
__u64 db_key;
__u32 qpid;
__u32 size_log2;
__u32 sq_size_log2;
__u32 rq_size_log2;
};
struct iwch_reg_user_mr_resp {
__u32 pbl_addr;
};
#endif

632
drivers/infiniband/hw/cxgb3/tcb.h Normal file
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@ -0,0 +1,632 @@
/*
* Copyright (c) 2007 Chelsio, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _TCB_DEFS_H
#define _TCB_DEFS_H
#define W_TCB_T_STATE 0
#define S_TCB_T_STATE 0
#define M_TCB_T_STATE 0xfULL
#define V_TCB_T_STATE(x) ((x) << S_TCB_T_STATE)
#define W_TCB_TIMER 0
#define S_TCB_TIMER 4
#define M_TCB_TIMER 0x1ULL
#define V_TCB_TIMER(x) ((x) << S_TCB_TIMER)
#define W_TCB_DACK_TIMER 0
#define S_TCB_DACK_TIMER 5
#define M_TCB_DACK_TIMER 0x1ULL
#define V_TCB_DACK_TIMER(x) ((x) << S_TCB_DACK_TIMER)
#define W_TCB_DEL_FLAG 0
#define S_TCB_DEL_FLAG 6
#define M_TCB_DEL_FLAG 0x1ULL
#define V_TCB_DEL_FLAG(x) ((x) << S_TCB_DEL_FLAG)
#define W_TCB_L2T_IX 0
#define S_TCB_L2T_IX 7
#define M_TCB_L2T_IX 0x7ffULL
#define V_TCB_L2T_IX(x) ((x) << S_TCB_L2T_IX)
#define W_TCB_SMAC_SEL 0
#define S_TCB_SMAC_SEL 18
#define M_TCB_SMAC_SEL 0x3ULL
#define V_TCB_SMAC_SEL(x) ((x) << S_TCB_SMAC_SEL)
#define W_TCB_TOS 0
#define S_TCB_TOS 20
#define M_TCB_TOS 0x3fULL
#define V_TCB_TOS(x) ((x) << S_TCB_TOS)
#define W_TCB_MAX_RT 0
#define S_TCB_MAX_RT 26
#define M_TCB_MAX_RT 0xfULL
#define V_TCB_MAX_RT(x) ((x) << S_TCB_MAX_RT)
#define W_TCB_T_RXTSHIFT 0
#define S_TCB_T_RXTSHIFT 30
#define M_TCB_T_RXTSHIFT 0xfULL
#define V_TCB_T_RXTSHIFT(x) ((x) << S_TCB_T_RXTSHIFT)
#define W_TCB_T_DUPACKS 1
#define S_TCB_T_DUPACKS 2
#define M_TCB_T_DUPACKS 0xfULL
#define V_TCB_T_DUPACKS(x) ((x) << S_TCB_T_DUPACKS)
#define W_TCB_T_MAXSEG 1
#define S_TCB_T_MAXSEG 6
#define M_TCB_T_MAXSEG 0xfULL
#define V_TCB_T_MAXSEG(x) ((x) << S_TCB_T_MAXSEG)
#define W_TCB_T_FLAGS1 1
#define S_TCB_T_FLAGS1 10
#define M_TCB_T_FLAGS1 0xffffffffULL
#define V_TCB_T_FLAGS1(x) ((x) << S_TCB_T_FLAGS1)
#define W_TCB_T_MIGRATION 1
#define S_TCB_T_MIGRATION 20
#define M_TCB_T_MIGRATION 0x1ULL
#define V_TCB_T_MIGRATION(x) ((x) << S_TCB_T_MIGRATION)
#define W_TCB_T_FLAGS2 2
#define S_TCB_T_FLAGS2 10
#define M_TCB_T_FLAGS2 0x7fULL
#define V_TCB_T_FLAGS2(x) ((x) << S_TCB_T_FLAGS2)
#define W_TCB_SND_SCALE 2
#define S_TCB_SND_SCALE 17
#define M_TCB_SND_SCALE 0xfULL
#define V_TCB_SND_SCALE(x) ((x) << S_TCB_SND_SCALE)
#define W_TCB_RCV_SCALE 2
#define S_TCB_RCV_SCALE 21
#define M_TCB_RCV_SCALE 0xfULL
#define V_TCB_RCV_SCALE(x) ((x) << S_TCB_RCV_SCALE)
#define W_TCB_SND_UNA_RAW 2
#define S_TCB_SND_UNA_RAW 25
#define M_TCB_SND_UNA_RAW 0x7ffffffULL
#define V_TCB_SND_UNA_RAW(x) ((x) << S_TCB_SND_UNA_RAW)
#define W_TCB_SND_NXT_RAW 3
#define S_TCB_SND_NXT_RAW 20
#define M_TCB_SND_NXT_RAW 0x7ffffffULL
#define V_TCB_SND_NXT_RAW(x) ((x) << S_TCB_SND_NXT_RAW)
#define W_TCB_RCV_NXT 4
#define S_TCB_RCV_NXT 15
#define M_TCB_RCV_NXT 0xffffffffULL
#define V_TCB_RCV_NXT(x) ((x) << S_TCB_RCV_NXT)
#define W_TCB_RCV_ADV 5
#define S_TCB_RCV_ADV 15
#define M_TCB_RCV_ADV 0xffffULL
#define V_TCB_RCV_ADV(x) ((x) << S_TCB_RCV_ADV)
#define W_TCB_SND_MAX_RAW 5
#define S_TCB_SND_MAX_RAW 31
#define M_TCB_SND_MAX_RAW 0x7ffffffULL
#define V_TCB_SND_MAX_RAW(x) ((x) << S_TCB_SND_MAX_RAW)
#define W_TCB_SND_CWND 6
#define S_TCB_SND_CWND 26
#define M_TCB_SND_CWND 0x7ffffffULL
#define V_TCB_SND_CWND(x) ((x) << S_TCB_SND_CWND)
#define W_TCB_SND_SSTHRESH 7
#define S_TCB_SND_SSTHRESH 21
#define M_TCB_SND_SSTHRESH 0x7ffffffULL
#define V_TCB_SND_SSTHRESH(x) ((x) << S_TCB_SND_SSTHRESH)
#define W_TCB_T_RTT_TS_RECENT_AGE 8
#define S_TCB_T_RTT_TS_RECENT_AGE 16
#define M_TCB_T_RTT_TS_RECENT_AGE 0xffffffffULL
#define V_TCB_T_RTT_TS_RECENT_AGE(x) ((x) << S_TCB_T_RTT_TS_RECENT_AGE)
#define W_TCB_T_RTSEQ_RECENT 9
#define S_TCB_T_RTSEQ_RECENT 16
#define M_TCB_T_RTSEQ_RECENT 0xffffffffULL
#define V_TCB_T_RTSEQ_RECENT(x) ((x) << S_TCB_T_RTSEQ_RECENT)
#define W_TCB_T_SRTT 10
#define S_TCB_T_SRTT 16
#define M_TCB_T_SRTT 0xffffULL
#define V_TCB_T_SRTT(x) ((x) << S_TCB_T_SRTT)
#define W_TCB_T_RTTVAR 11
#define S_TCB_T_RTTVAR 0
#define M_TCB_T_RTTVAR 0xffffULL
#define V_TCB_T_RTTVAR(x) ((x) << S_TCB_T_RTTVAR)
#define W_TCB_TS_LAST_ACK_SENT_RAW 11
#define S_TCB_TS_LAST_ACK_SENT_RAW 16
#define M_TCB_TS_LAST_ACK_SENT_RAW 0x7ffffffULL
#define V_TCB_TS_LAST_ACK_SENT_RAW(x) ((x) << S_TCB_TS_LAST_ACK_SENT_RAW)
#define W_TCB_DIP 12
#define S_TCB_DIP 11
#define M_TCB_DIP 0xffffffffULL
#define V_TCB_DIP(x) ((x) << S_TCB_DIP)
#define W_TCB_SIP 13
#define S_TCB_SIP 11
#define M_TCB_SIP 0xffffffffULL
#define V_TCB_SIP(x) ((x) << S_TCB_SIP)
#define W_TCB_DP 14
#define S_TCB_DP 11
#define M_TCB_DP 0xffffULL
#define V_TCB_DP(x) ((x) << S_TCB_DP)
#define W_TCB_SP 14
#define S_TCB_SP 27
#define M_TCB_SP 0xffffULL
#define V_TCB_SP(x) ((x) << S_TCB_SP)
#define W_TCB_TIMESTAMP 15
#define S_TCB_TIMESTAMP 11
#define M_TCB_TIMESTAMP 0xffffffffULL
#define V_TCB_TIMESTAMP(x) ((x) << S_TCB_TIMESTAMP)
#define W_TCB_TIMESTAMP_OFFSET 16
#define S_TCB_TIMESTAMP_OFFSET 11
#define M_TCB_TIMESTAMP_OFFSET 0xfULL
#define V_TCB_TIMESTAMP_OFFSET(x) ((x) << S_TCB_TIMESTAMP_OFFSET)
#define W_TCB_TX_MAX 16
#define S_TCB_TX_MAX 15
#define M_TCB_TX_MAX 0xffffffffULL
#define V_TCB_TX_MAX(x) ((x) << S_TCB_TX_MAX)
#define W_TCB_TX_HDR_PTR_RAW 17
#define S_TCB_TX_HDR_PTR_RAW 15
#define M_TCB_TX_HDR_PTR_RAW 0x1ffffULL
#define V_TCB_TX_HDR_PTR_RAW(x) ((x) << S_TCB_TX_HDR_PTR_RAW)
#define W_TCB_TX_LAST_PTR_RAW 18
#define S_TCB_TX_LAST_PTR_RAW 0
#define M_TCB_TX_LAST_PTR_RAW 0x1ffffULL
#define V_TCB_TX_LAST_PTR_RAW(x) ((x) << S_TCB_TX_LAST_PTR_RAW)
#define W_TCB_TX_COMPACT 18
#define S_TCB_TX_COMPACT 17
#define M_TCB_TX_COMPACT 0x1ULL
#define V_TCB_TX_COMPACT(x) ((x) << S_TCB_TX_COMPACT)
#define W_TCB_RX_COMPACT 18
#define S_TCB_RX_COMPACT 18
#define M_TCB_RX_COMPACT 0x1ULL
#define V_TCB_RX_COMPACT(x) ((x) << S_TCB_RX_COMPACT)
#define W_TCB_RCV_WND 18
#define S_TCB_RCV_WND 19
#define M_TCB_RCV_WND 0x7ffffffULL
#define V_TCB_RCV_WND(x) ((x) << S_TCB_RCV_WND)
#define W_TCB_RX_HDR_OFFSET 19
#define S_TCB_RX_HDR_OFFSET 14
#define M_TCB_RX_HDR_OFFSET 0x7ffffffULL
#define V_TCB_RX_HDR_OFFSET(x) ((x) << S_TCB_RX_HDR_OFFSET)
#define W_TCB_RX_FRAG0_START_IDX_RAW 20
#define S_TCB_RX_FRAG0_START_IDX_RAW 9
#define M_TCB_RX_FRAG0_START_IDX_RAW 0x7ffffffULL
#define V_TCB_RX_FRAG0_START_IDX_RAW(x) ((x) << S_TCB_RX_FRAG0_START_IDX_RAW)
#define W_TCB_RX_FRAG1_START_IDX_OFFSET 21
#define S_TCB_RX_FRAG1_START_IDX_OFFSET 4
#define M_TCB_RX_FRAG1_START_IDX_OFFSET 0x7ffffffULL
#define V_TCB_RX_FRAG1_START_IDX_OFFSET(x) ((x) << S_TCB_RX_FRAG1_START_IDX_OFFSET)
#define W_TCB_RX_FRAG0_LEN 21
#define S_TCB_RX_FRAG0_LEN 31
#define M_TCB_RX_FRAG0_LEN 0x7ffffffULL
#define V_TCB_RX_FRAG0_LEN(x) ((x) << S_TCB_RX_FRAG0_LEN)
#define W_TCB_RX_FRAG1_LEN 22
#define S_TCB_RX_FRAG1_LEN 26
#define M_TCB_RX_FRAG1_LEN 0x7ffffffULL
#define V_TCB_RX_FRAG1_LEN(x) ((x) << S_TCB_RX_FRAG1_LEN)
#define W_TCB_NEWRENO_RECOVER 23
#define S_TCB_NEWRENO_RECOVER 21
#define M_TCB_NEWRENO_RECOVER 0x7ffffffULL
#define V_TCB_NEWRENO_RECOVER(x) ((x) << S_TCB_NEWRENO_RECOVER)
#define W_TCB_PDU_HAVE_LEN 24
#define S_TCB_PDU_HAVE_LEN 16
#define M_TCB_PDU_HAVE_LEN 0x1ULL
#define V_TCB_PDU_HAVE_LEN(x) ((x) << S_TCB_PDU_HAVE_LEN)
#define W_TCB_PDU_LEN 24
#define S_TCB_PDU_LEN 17
#define M_TCB_PDU_LEN 0xffffULL
#define V_TCB_PDU_LEN(x) ((x) << S_TCB_PDU_LEN)
#define W_TCB_RX_QUIESCE 25
#define S_TCB_RX_QUIESCE 1
#define M_TCB_RX_QUIESCE 0x1ULL
#define V_TCB_RX_QUIESCE(x) ((x) << S_TCB_RX_QUIESCE)
#define W_TCB_RX_PTR_RAW 25
#define S_TCB_RX_PTR_RAW 2
#define M_TCB_RX_PTR_RAW 0x1ffffULL
#define V_TCB_RX_PTR_RAW(x) ((x) << S_TCB_RX_PTR_RAW)
#define W_TCB_CPU_NO 25
#define S_TCB_CPU_NO 19
#define M_TCB_CPU_NO 0x7fULL
#define V_TCB_CPU_NO(x) ((x) << S_TCB_CPU_NO)
#define W_TCB_ULP_TYPE 25
#define S_TCB_ULP_TYPE 26
#define M_TCB_ULP_TYPE 0xfULL
#define V_TCB_ULP_TYPE(x) ((x) << S_TCB_ULP_TYPE)
#define W_TCB_RX_FRAG1_PTR_RAW 25
#define S_TCB_RX_FRAG1_PTR_RAW 30
#define M_TCB_RX_FRAG1_PTR_RAW 0x1ffffULL
#define V_TCB_RX_FRAG1_PTR_RAW(x) ((x) << S_TCB_RX_FRAG1_PTR_RAW)
#define W_TCB_RX_FRAG2_START_IDX_OFFSET_RAW 26
#define S_TCB_RX_FRAG2_START_IDX_OFFSET_RAW 15
#define M_TCB_RX_FRAG2_START_IDX_OFFSET_RAW 0x7ffffffULL
#define V_TCB_RX_FRAG2_START_IDX_OFFSET_RAW(x) ((x) << S_TCB_RX_FRAG2_START_IDX_OFFSET_RAW)
#define W_TCB_RX_FRAG2_PTR_RAW 27
#define S_TCB_RX_FRAG2_PTR_RAW 10
#define M_TCB_RX_FRAG2_PTR_RAW 0x1ffffULL
#define V_TCB_RX_FRAG2_PTR_RAW(x) ((x) << S_TCB_RX_FRAG2_PTR_RAW)
#define W_TCB_RX_FRAG2_LEN_RAW 27
#define S_TCB_RX_FRAG2_LEN_RAW 27
#define M_TCB_RX_FRAG2_LEN_RAW 0x7ffffffULL
#define V_TCB_RX_FRAG2_LEN_RAW(x) ((x) << S_TCB_RX_FRAG2_LEN_RAW)
#define W_TCB_RX_FRAG3_PTR_RAW 28
#define S_TCB_RX_FRAG3_PTR_RAW 22
#define M_TCB_RX_FRAG3_PTR_RAW 0x1ffffULL
#define V_TCB_RX_FRAG3_PTR_RAW(x) ((x) << S_TCB_RX_FRAG3_PTR_RAW)
#define W_TCB_RX_FRAG3_LEN_RAW 29
#define S_TCB_RX_FRAG3_LEN_RAW 7
#define M_TCB_RX_FRAG3_LEN_RAW 0x7ffffffULL
#define V_TCB_RX_FRAG3_LEN_RAW(x) ((x) << S_TCB_RX_FRAG3_LEN_RAW)
#define W_TCB_RX_FRAG3_START_IDX_OFFSET_RAW 30
#define S_TCB_RX_FRAG3_START_IDX_OFFSET_RAW 2
#define M_TCB_RX_FRAG3_START_IDX_OFFSET_RAW 0x7ffffffULL
#define V_TCB_RX_FRAG3_START_IDX_OFFSET_RAW(x) ((x) << S_TCB_RX_FRAG3_START_IDX_OFFSET_RAW)
#define W_TCB_PDU_HDR_LEN 30
#define S_TCB_PDU_HDR_LEN 29
#define M_TCB_PDU_HDR_LEN 0xffULL
#define V_TCB_PDU_HDR_LEN(x) ((x) << S_TCB_PDU_HDR_LEN)
#define W_TCB_SLUSH1 31
#define S_TCB_SLUSH1 5
#define M_TCB_SLUSH1 0x7ffffULL
#define V_TCB_SLUSH1(x) ((x) << S_TCB_SLUSH1)
#define W_TCB_ULP_RAW 31
#define S_TCB_ULP_RAW 24
#define M_TCB_ULP_RAW 0xffULL
#define V_TCB_ULP_RAW(x) ((x) << S_TCB_ULP_RAW)
#define W_TCB_DDP_RDMAP_VERSION 25
#define S_TCB_DDP_RDMAP_VERSION 30
#define M_TCB_DDP_RDMAP_VERSION 0x1ULL
#define V_TCB_DDP_RDMAP_VERSION(x) ((x) << S_TCB_DDP_RDMAP_VERSION)
#define W_TCB_MARKER_ENABLE_RX 25
#define S_TCB_MARKER_ENABLE_RX 31
#define M_TCB_MARKER_ENABLE_RX 0x1ULL
#define V_TCB_MARKER_ENABLE_RX(x) ((x) << S_TCB_MARKER_ENABLE_RX)
#define W_TCB_MARKER_ENABLE_TX 26
#define S_TCB_MARKER_ENABLE_TX 0
#define M_TCB_MARKER_ENABLE_TX 0x1ULL
#define V_TCB_MARKER_ENABLE_TX(x) ((x) << S_TCB_MARKER_ENABLE_TX)
#define W_TCB_CRC_ENABLE 26
#define S_TCB_CRC_ENABLE 1
#define M_TCB_CRC_ENABLE 0x1ULL
#define V_TCB_CRC_ENABLE(x) ((x) << S_TCB_CRC_ENABLE)
#define W_TCB_IRS_ULP 26
#define S_TCB_IRS_ULP 2
#define M_TCB_IRS_ULP 0x1ffULL
#define V_TCB_IRS_ULP(x) ((x) << S_TCB_IRS_ULP)
#define W_TCB_ISS_ULP 26
#define S_TCB_ISS_ULP 11
#define M_TCB_ISS_ULP 0x1ffULL
#define V_TCB_ISS_ULP(x) ((x) << S_TCB_ISS_ULP)
#define W_TCB_TX_PDU_LEN 26
#define S_TCB_TX_PDU_LEN 20
#define M_TCB_TX_PDU_LEN 0x3fffULL
#define V_TCB_TX_PDU_LEN(x) ((x) << S_TCB_TX_PDU_LEN)
#define W_TCB_TX_PDU_OUT 27
#define S_TCB_TX_PDU_OUT 2
#define M_TCB_TX_PDU_OUT 0x1ULL
#define V_TCB_TX_PDU_OUT(x) ((x) << S_TCB_TX_PDU_OUT)
#define W_TCB_CQ_IDX_SQ 27
#define S_TCB_CQ_IDX_SQ 3
#define M_TCB_CQ_IDX_SQ 0xffffULL
#define V_TCB_CQ_IDX_SQ(x) ((x) << S_TCB_CQ_IDX_SQ)
#define W_TCB_CQ_IDX_RQ 27
#define S_TCB_CQ_IDX_RQ 19
#define M_TCB_CQ_IDX_RQ 0xffffULL
#define V_TCB_CQ_IDX_RQ(x) ((x) << S_TCB_CQ_IDX_RQ)
#define W_TCB_QP_ID 28
#define S_TCB_QP_ID 3
#define M_TCB_QP_ID 0xffffULL
#define V_TCB_QP_ID(x) ((x) << S_TCB_QP_ID)
#define W_TCB_PD_ID 28
#define S_TCB_PD_ID 19
#define M_TCB_PD_ID 0xffffULL
#define V_TCB_PD_ID(x) ((x) << S_TCB_PD_ID)
#define W_TCB_STAG 29
#define S_TCB_STAG 3
#define M_TCB_STAG 0xffffffffULL
#define V_TCB_STAG(x) ((x) << S_TCB_STAG)
#define W_TCB_RQ_START 30
#define S_TCB_RQ_START 3
#define M_TCB_RQ_START 0x3ffffffULL
#define V_TCB_RQ_START(x) ((x) << S_TCB_RQ_START)
#define W_TCB_RQ_MSN 30
#define S_TCB_RQ_MSN 29
#define M_TCB_RQ_MSN 0x3ffULL
#define V_TCB_RQ_MSN(x) ((x) << S_TCB_RQ_MSN)
#define W_TCB_RQ_MAX_OFFSET 31
#define S_TCB_RQ_MAX_OFFSET 7
#define M_TCB_RQ_MAX_OFFSET 0xfULL
#define V_TCB_RQ_MAX_OFFSET(x) ((x) << S_TCB_RQ_MAX_OFFSET)
#define W_TCB_RQ_WRITE_PTR 31
#define S_TCB_RQ_WRITE_PTR 11
#define M_TCB_RQ_WRITE_PTR 0x3ffULL
#define V_TCB_RQ_WRITE_PTR(x) ((x) << S_TCB_RQ_WRITE_PTR)
#define W_TCB_INB_WRITE_PERM 31
#define S_TCB_INB_WRITE_PERM 21
#define M_TCB_INB_WRITE_PERM 0x1ULL
#define V_TCB_INB_WRITE_PERM(x) ((x) << S_TCB_INB_WRITE_PERM)
#define W_TCB_INB_READ_PERM 31
#define S_TCB_INB_READ_PERM 22
#define M_TCB_INB_READ_PERM 0x1ULL
#define V_TCB_INB_READ_PERM(x) ((x) << S_TCB_INB_READ_PERM)
#define W_TCB_ORD_L_BIT_VLD 31
#define S_TCB_ORD_L_BIT_VLD 23
#define M_TCB_ORD_L_BIT_VLD 0x1ULL
#define V_TCB_ORD_L_BIT_VLD(x) ((x) << S_TCB_ORD_L_BIT_VLD)
#define W_TCB_RDMAP_OPCODE 31
#define S_TCB_RDMAP_OPCODE 24
#define M_TCB_RDMAP_OPCODE 0xfULL
#define V_TCB_RDMAP_OPCODE(x) ((x) << S_TCB_RDMAP_OPCODE)
#define W_TCB_TX_FLUSH 31
#define S_TCB_TX_FLUSH 28
#define M_TCB_TX_FLUSH 0x1ULL
#define V_TCB_TX_FLUSH(x) ((x) << S_TCB_TX_FLUSH)
#define W_TCB_TX_OOS_RXMT 31
#define S_TCB_TX_OOS_RXMT 29
#define M_TCB_TX_OOS_RXMT 0x1ULL
#define V_TCB_TX_OOS_RXMT(x) ((x) << S_TCB_TX_OOS_RXMT)
#define W_TCB_TX_OOS_TXMT 31
#define S_TCB_TX_OOS_TXMT 30
#define M_TCB_TX_OOS_TXMT 0x1ULL
#define V_TCB_TX_OOS_TXMT(x) ((x) << S_TCB_TX_OOS_TXMT)
#define W_TCB_SLUSH_AUX2 31
#define S_TCB_SLUSH_AUX2 31
#define M_TCB_SLUSH_AUX2 0x1ULL
#define V_TCB_SLUSH_AUX2(x) ((x) << S_TCB_SLUSH_AUX2)
#define W_TCB_RX_FRAG1_PTR_RAW2 25
#define S_TCB_RX_FRAG1_PTR_RAW2 30
#define M_TCB_RX_FRAG1_PTR_RAW2 0x1ffffULL
#define V_TCB_RX_FRAG1_PTR_RAW2(x) ((x) << S_TCB_RX_FRAG1_PTR_RAW2)
#define W_TCB_RX_DDP_FLAGS 26
#define S_TCB_RX_DDP_FLAGS 15
#define M_TCB_RX_DDP_FLAGS 0x3ffULL
#define V_TCB_RX_DDP_FLAGS(x) ((x) << S_TCB_RX_DDP_FLAGS)
#define W_TCB_SLUSH_AUX3 26
#define S_TCB_SLUSH_AUX3 31
#define M_TCB_SLUSH_AUX3 0x1ffULL
#define V_TCB_SLUSH_AUX3(x) ((x) << S_TCB_SLUSH_AUX3)
#define W_TCB_RX_DDP_BUF0_OFFSET 27
#define S_TCB_RX_DDP_BUF0_OFFSET 8
#define M_TCB_RX_DDP_BUF0_OFFSET 0x3fffffULL
#define V_TCB_RX_DDP_BUF0_OFFSET(x) ((x) << S_TCB_RX_DDP_BUF0_OFFSET)
#define W_TCB_RX_DDP_BUF0_LEN 27
#define S_TCB_RX_DDP_BUF0_LEN 30
#define M_TCB_RX_DDP_BUF0_LEN 0x3fffffULL
#define V_TCB_RX_DDP_BUF0_LEN(x) ((x) << S_TCB_RX_DDP_BUF0_LEN)
#define W_TCB_RX_DDP_BUF1_OFFSET 28
#define S_TCB_RX_DDP_BUF1_OFFSET 20
#define M_TCB_RX_DDP_BUF1_OFFSET 0x3fffffULL
#define V_TCB_RX_DDP_BUF1_OFFSET(x) ((x) << S_TCB_RX_DDP_BUF1_OFFSET)
#define W_TCB_RX_DDP_BUF1_LEN 29
#define S_TCB_RX_DDP_BUF1_LEN 10
#define M_TCB_RX_DDP_BUF1_LEN 0x3fffffULL
#define V_TCB_RX_DDP_BUF1_LEN(x) ((x) << S_TCB_RX_DDP_BUF1_LEN)
#define W_TCB_RX_DDP_BUF0_TAG 30
#define S_TCB_RX_DDP_BUF0_TAG 0
#define M_TCB_RX_DDP_BUF0_TAG 0xffffffffULL
#define V_TCB_RX_DDP_BUF0_TAG(x) ((x) << S_TCB_RX_DDP_BUF0_TAG)
#define W_TCB_RX_DDP_BUF1_TAG 31
#define S_TCB_RX_DDP_BUF1_TAG 0
#define M_TCB_RX_DDP_BUF1_TAG 0xffffffffULL
#define V_TCB_RX_DDP_BUF1_TAG(x) ((x) << S_TCB_RX_DDP_BUF1_TAG)
#define S_TF_DACK 10
#define V_TF_DACK(x) ((x) << S_TF_DACK)
#define S_TF_NAGLE 11
#define V_TF_NAGLE(x) ((x) << S_TF_NAGLE)
#define S_TF_RECV_SCALE 12
#define V_TF_RECV_SCALE(x) ((x) << S_TF_RECV_SCALE)
#define S_TF_RECV_TSTMP 13
#define V_TF_RECV_TSTMP(x) ((x) << S_TF_RECV_TSTMP)
#define S_TF_RECV_SACK 14
#define V_TF_RECV_SACK(x) ((x) << S_TF_RECV_SACK)
#define S_TF_TURBO 15
#define V_TF_TURBO(x) ((x) << S_TF_TURBO)
#define S_TF_KEEPALIVE 16
#define V_TF_KEEPALIVE(x) ((x) << S_TF_KEEPALIVE)
#define S_TF_TCAM_BYPASS 17
#define V_TF_TCAM_BYPASS(x) ((x) << S_TF_TCAM_BYPASS)
#define S_TF_CORE_FIN 18
#define V_TF_CORE_FIN(x) ((x) << S_TF_CORE_FIN)
#define S_TF_CORE_MORE 19
#define V_TF_CORE_MORE(x) ((x) << S_TF_CORE_MORE)
#define S_TF_MIGRATING 20
#define V_TF_MIGRATING(x) ((x) << S_TF_MIGRATING)
#define S_TF_ACTIVE_OPEN 21
#define V_TF_ACTIVE_OPEN(x) ((x) << S_TF_ACTIVE_OPEN)
#define S_TF_ASK_MODE 22
#define V_TF_ASK_MODE(x) ((x) << S_TF_ASK_MODE)
#define S_TF_NON_OFFLOAD 23
#define V_TF_NON_OFFLOAD(x) ((x) << S_TF_NON_OFFLOAD)
#define S_TF_MOD_SCHD 24
#define V_TF_MOD_SCHD(x) ((x) << S_TF_MOD_SCHD)
#define S_TF_MOD_SCHD_REASON0 25
#define V_TF_MOD_SCHD_REASON0(x) ((x) << S_TF_MOD_SCHD_REASON0)
#define S_TF_MOD_SCHD_REASON1 26
#define V_TF_MOD_SCHD_REASON1(x) ((x) << S_TF_MOD_SCHD_REASON1)
#define S_TF_MOD_SCHD_RX 27
#define V_TF_MOD_SCHD_RX(x) ((x) << S_TF_MOD_SCHD_RX)
#define S_TF_CORE_PUSH 28
#define V_TF_CORE_PUSH(x) ((x) << S_TF_CORE_PUSH)
#define S_TF_RCV_COALESCE_ENABLE 29
#define V_TF_RCV_COALESCE_ENABLE(x) ((x) << S_TF_RCV_COALESCE_ENABLE)
#define S_TF_RCV_COALESCE_PUSH 30
#define V_TF_RCV_COALESCE_PUSH(x) ((x) << S_TF_RCV_COALESCE_PUSH)
#define S_TF_RCV_COALESCE_LAST_PSH 31
#define V_TF_RCV_COALESCE_LAST_PSH(x) ((x) << S_TF_RCV_COALESCE_LAST_PSH)
#define S_TF_RCV_COALESCE_HEARTBEAT 32
#define V_TF_RCV_COALESCE_HEARTBEAT(x) ((x) << S_TF_RCV_COALESCE_HEARTBEAT)
#define S_TF_HALF_CLOSE 33
#define V_TF_HALF_CLOSE(x) ((x) << S_TF_HALF_CLOSE)
#define S_TF_DACK_MSS 34
#define V_TF_DACK_MSS(x) ((x) << S_TF_DACK_MSS)
#define S_TF_CCTRL_SEL0 35
#define V_TF_CCTRL_SEL0(x) ((x) << S_TF_CCTRL_SEL0)
#define S_TF_CCTRL_SEL1 36
#define V_TF_CCTRL_SEL1(x) ((x) << S_TF_CCTRL_SEL1)
#define S_TF_TCP_NEWRENO_FAST_RECOVERY 37
#define V_TF_TCP_NEWRENO_FAST_RECOVERY(x) ((x) << S_TF_TCP_NEWRENO_FAST_RECOVERY)
#define S_TF_TX_PACE_AUTO 38
#define V_TF_TX_PACE_AUTO(x) ((x) << S_TF_TX_PACE_AUTO)
#define S_TF_PEER_FIN_HELD 39
#define V_TF_PEER_FIN_HELD(x) ((x) << S_TF_PEER_FIN_HELD)
#define S_TF_CORE_URG 40
#define V_TF_CORE_URG(x) ((x) << S_TF_CORE_URG)
#define S_TF_RDMA_ERROR 41
#define V_TF_RDMA_ERROR(x) ((x) << S_TF_RDMA_ERROR)
#define S_TF_SSWS_DISABLED 42
#define V_TF_SSWS_DISABLED(x) ((x) << S_TF_SSWS_DISABLED)
#define S_TF_DUPACK_COUNT_ODD 43
#define V_TF_DUPACK_COUNT_ODD(x) ((x) << S_TF_DUPACK_COUNT_ODD)
#define S_TF_TX_CHANNEL 44
#define V_TF_TX_CHANNEL(x) ((x) << S_TF_TX_CHANNEL)
#define S_TF_RX_CHANNEL 45
#define V_TF_RX_CHANNEL(x) ((x) << S_TF_RX_CHANNEL)
#define S_TF_TX_PACE_FIXED 46
#define V_TF_TX_PACE_FIXED(x) ((x) << S_TF_TX_PACE_FIXED)
#define S_TF_RDMA_FLM_ERROR 47
#define V_TF_RDMA_FLM_ERROR(x) ((x) << S_TF_RDMA_FLM_ERROR)
#define S_TF_RX_FLOW_CONTROL_DISABLE 48
#define V_TF_RX_FLOW_CONTROL_DISABLE(x) ((x) << S_TF_RX_FLOW_CONTROL_DISABLE)
#endif /* _TCB_DEFS_H */

2
drivers/infiniband/hw/ehca/ehca_irq.c
View file

@ -756,6 +756,8 @@ void ehca_destroy_comp_pool(void)
if (cpu_online(i))
destroy_comp_task(pool, i);
}
free_percpu(pool->cpu_comp_tasks);
kfree(pool);
#endif
return;

6
drivers/infiniband/hw/mthca/mthca_cmd.c
View file

@ -1051,7 +1051,11 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev *dev,
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EQ_OFFSET);
dev_lim->max_eqs = 1 << (field & 0x7);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MTT_OFFSET);
dev_lim->reserved_mtts = 1 << (field >> 4);
if (mthca_is_memfree(dev))
dev_lim->reserved_mtts = ALIGN((1 << (field >> 4)) * sizeof(u64),
MTHCA_MTT_SEG_SIZE) / MTHCA_MTT_SEG_SIZE;
else
dev_lim->reserved_mtts = 1 << (field >> 4);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET);
dev_lim->max_mrw_sz = 1 << field;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MRW_OFFSET);

2
drivers/infiniband/hw/mthca/mthca_dev.h
View file

@ -464,6 +464,8 @@ void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar);
int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd);
void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd);
int mthca_write_mtt_size(struct mthca_dev *dev);
struct mthca_mtt *mthca_alloc_mtt(struct mthca_dev *dev, int size);
void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt);
int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,

40
drivers/infiniband/hw/mthca/mthca_main.c
View file

@ -379,7 +379,7 @@ static int mthca_load_fw(struct mthca_dev *mdev)
mdev->fw.arbel.fw_icm =
mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
GFP_HIGHUSER | __GFP_NOWARN);
GFP_HIGHUSER | __GFP_NOWARN, 0);
if (!mdev->fw.arbel.fw_icm) {
mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
return -ENOMEM;
@ -412,7 +412,7 @@ err_unmap_fa:
mthca_UNMAP_FA(mdev, &status);
err_free:
mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
return err;
}
@ -441,7 +441,7 @@ static int mthca_init_icm(struct mthca_dev *mdev,
(unsigned long long) aux_pages << 2);
mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
GFP_HIGHUSER | __GFP_NOWARN);
GFP_HIGHUSER | __GFP_NOWARN, 0);
if (!mdev->fw.arbel.aux_icm) {
mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
return -ENOMEM;
@ -464,10 +464,15 @@ static int mthca_init_icm(struct mthca_dev *mdev,
goto err_unmap_aux;
}
/* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * MTHCA_MTT_SEG_SIZE,
dma_get_cache_alignment()) / MTHCA_MTT_SEG_SIZE;
mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
MTHCA_MTT_SEG_SIZE,
mdev->limits.num_mtt_segs,
mdev->limits.reserved_mtts, 1);
mdev->limits.reserved_mtts,
1, 0);
if (!mdev->mr_table.mtt_table) {
mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
err = -ENOMEM;
@ -477,7 +482,8 @@ static int mthca_init_icm(struct mthca_dev *mdev,
mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
dev_lim->mpt_entry_sz,
mdev->limits.num_mpts,
mdev->limits.reserved_mrws, 1);
mdev->limits.reserved_mrws,
1, 1);
if (!mdev->mr_table.mpt_table) {
mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
err = -ENOMEM;
@ -487,7 +493,8 @@ static int mthca_init_icm(struct mthca_dev *mdev,
mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
dev_lim->qpc_entry_sz,
mdev->limits.num_qps,
mdev->limits.reserved_qps, 0);
mdev->limits.reserved_qps,
0, 0);
if (!mdev->qp_table.qp_table) {
mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
err = -ENOMEM;
@ -497,7 +504,8 @@ static int mthca_init_icm(struct mthca_dev *mdev,
mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
dev_lim->eqpc_entry_sz,
mdev->limits.num_qps,
mdev->limits.reserved_qps, 0);
mdev->limits.reserved_qps,
0, 0);
if (!mdev->qp_table.eqp_table) {
mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
err = -ENOMEM;
@ -507,7 +515,7 @@ static int mthca_init_icm(struct mthca_dev *mdev,
mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
MTHCA_RDB_ENTRY_SIZE,
mdev->limits.num_qps <<
mdev->qp_table.rdb_shift,
mdev->qp_table.rdb_shift, 0,
0, 0);
if (!mdev->qp_table.rdb_table) {
mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
@ -518,7 +526,8 @@ static int mthca_init_icm(struct mthca_dev *mdev,
mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
dev_lim->cqc_entry_sz,
mdev->limits.num_cqs,
mdev->limits.reserved_cqs, 0);
mdev->limits.reserved_cqs,
0, 0);
if (!mdev->cq_table.table) {
mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
err = -ENOMEM;
@ -530,7 +539,8 @@ static int mthca_init_icm(struct mthca_dev *mdev,
mthca_alloc_icm_table(mdev, init_hca->srqc_base,
dev_lim->srq_entry_sz,
mdev->limits.num_srqs,
mdev->limits.reserved_srqs, 0);
mdev->limits.reserved_srqs,
0, 0);
if (!mdev->srq_table.table) {
mthca_err(mdev, "Failed to map SRQ context memory, "
"aborting.\n");
@ -550,7 +560,7 @@ static int mthca_init_icm(struct mthca_dev *mdev,
mdev->limits.num_amgms,
mdev->limits.num_mgms +
mdev->limits.num_amgms,
0);
0, 0);
if (!mdev->mcg_table.table) {
mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
err = -ENOMEM;
@ -588,7 +598,7 @@ err_unmap_aux:
mthca_UNMAP_ICM_AUX(mdev, &status);
err_free_aux:
mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
return err;
}
@ -609,7 +619,7 @@ static void mthca_free_icms(struct mthca_dev *mdev)
mthca_unmap_eq_icm(mdev);
mthca_UNMAP_ICM_AUX(mdev, &status);
mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
}
static int mthca_init_arbel(struct mthca_dev *mdev)
@ -693,7 +703,7 @@ err_free_icm:
err_stop_fw:
mthca_UNMAP_FA(mdev, &status);
mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
err_disable:
if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
@ -712,7 +722,7 @@ static void mthca_close_hca(struct mthca_dev *mdev)
mthca_free_icms(mdev);
mthca_UNMAP_FA(mdev, &status);
mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
mthca_DISABLE_LAM(mdev, &status);

129
drivers/infiniband/hw/mthca/mthca_memfree.c
View file

@ -35,6 +35,9 @@
*/
#include <linux/mm.h>
#include <linux/scatterlist.h>
#include <asm/page.h>
#include "mthca_memfree.h"
#include "mthca_dev.h"
@ -58,22 +61,42 @@ struct mthca_user_db_table {
} page[0];
};
void mthca_free_icm(struct mthca_dev *dev, struct mthca_icm *icm)
static void mthca_free_icm_pages(struct mthca_dev *dev, struct mthca_icm_chunk *chunk)
{
int i;
if (chunk->nsg > 0)
pci_unmap_sg(dev->pdev, chunk->mem, chunk->npages,
PCI_DMA_BIDIRECTIONAL);
for (i = 0; i < chunk->npages; ++i)
__free_pages(chunk->mem[i].page,
get_order(chunk->mem[i].length));
}
static void mthca_free_icm_coherent(struct mthca_dev *dev, struct mthca_icm_chunk *chunk)
{
int i;
for (i = 0; i < chunk->npages; ++i) {
dma_free_coherent(&dev->pdev->dev, chunk->mem[i].length,
lowmem_page_address(chunk->mem[i].page),
sg_dma_address(&chunk->mem[i]));
}
}
void mthca_free_icm(struct mthca_dev *dev, struct mthca_icm *icm, int coherent)
{
struct mthca_icm_chunk *chunk, *tmp;
int i;
if (!icm)
return;
list_for_each_entry_safe(chunk, tmp, &icm->chunk_list, list) {
if (chunk->nsg > 0)
pci_unmap_sg(dev->pdev, chunk->mem, chunk->npages,
PCI_DMA_BIDIRECTIONAL);
for (i = 0; i < chunk->npages; ++i)
__free_pages(chunk->mem[i].page,
get_order(chunk->mem[i].length));
if (coherent)
mthca_free_icm_coherent(dev, chunk);
else
mthca_free_icm_pages(dev, chunk);
kfree(chunk);
}
@ -81,12 +104,41 @@ void mthca_free_icm(struct mthca_dev *dev, struct mthca_icm *icm)
kfree(icm);
}
static int mthca_alloc_icm_pages(struct scatterlist *mem, int order, gfp_t gfp_mask)
{
mem->page = alloc_pages(gfp_mask, order);
if (!mem->page)
return -ENOMEM;
mem->length = PAGE_SIZE << order;
mem->offset = 0;
return 0;
}
static int mthca_alloc_icm_coherent(struct device *dev, struct scatterlist *mem,
int order, gfp_t gfp_mask)
{
void *buf = dma_alloc_coherent(dev, PAGE_SIZE << order, &sg_dma_address(mem),
gfp_mask);
if (!buf)
return -ENOMEM;
sg_set_buf(mem, buf, PAGE_SIZE << order);
BUG_ON(mem->offset);
sg_dma_len(mem) = PAGE_SIZE << order;
return 0;
}
struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages,
gfp_t gfp_mask)
gfp_t gfp_mask, int coherent)
{
struct mthca_icm *icm;
struct mthca_icm_chunk *chunk = NULL;
int cur_order;
int ret;
/* We use sg_set_buf for coherent allocs, which assumes low memory */
BUG_ON(coherent && (gfp_mask & __GFP_HIGHMEM));
icm = kmalloc(sizeof *icm, gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
if (!icm)
@ -112,22 +164,29 @@ struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages,
while (1 << cur_order > npages)
--cur_order;
chunk->mem[chunk->npages].page = alloc_pages(gfp_mask, cur_order);
if (chunk->mem[chunk->npages].page) {
chunk->mem[chunk->npages].length = PAGE_SIZE << cur_order;
chunk->mem[chunk->npages].offset = 0;
if (coherent)
ret = mthca_alloc_icm_coherent(&dev->pdev->dev,
&chunk->mem[chunk->npages],
cur_order, gfp_mask);
else
ret = mthca_alloc_icm_pages(&chunk->mem[chunk->npages],
cur_order, gfp_mask);
if (++chunk->npages == MTHCA_ICM_CHUNK_LEN) {
if (!ret) {
++chunk->npages;
if (!coherent && chunk->npages == MTHCA_ICM_CHUNK_LEN) {
chunk->nsg = pci_map_sg(dev->pdev, chunk->mem,
chunk->npages,
PCI_DMA_BIDIRECTIONAL);
if (chunk->nsg <= 0)
goto fail;
chunk = NULL;
}
if (chunk->npages == MTHCA_ICM_CHUNK_LEN)
chunk = NULL;
npages -= 1 << cur_order;
} else {
--cur_order;
@ -136,7 +195,7 @@ struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages,
}
}
if (chunk) {
if (!coherent && chunk) {
chunk->nsg = pci_map_sg(dev->pdev, chunk->mem,
chunk->npages,
PCI_DMA_BIDIRECTIONAL);
@ -148,7 +207,7 @@ struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages,
return icm;
fail:
mthca_free_icm(dev, icm);
mthca_free_icm(dev, icm, coherent);
return NULL;
}
@ -167,7 +226,7 @@ int mthca_table_get(struct mthca_dev *dev, struct mthca_icm_table *table, int ob
table->icm[i] = mthca_alloc_icm(dev, MTHCA_TABLE_CHUNK_SIZE >> PAGE_SHIFT,
(table->lowmem ? GFP_KERNEL : GFP_HIGHUSER) |
__GFP_NOWARN);
__GFP_NOWARN, table->coherent);
if (!table->icm[i]) {
ret = -ENOMEM;
goto out;
@ -175,7 +234,7 @@ int mthca_table_get(struct mthca_dev *dev, struct mthca_icm_table *table, int ob
if (mthca_MAP_ICM(dev, table->icm[i], table->virt + i * MTHCA_TABLE_CHUNK_SIZE,
&status) || status) {
mthca_free_icm(dev, table->icm[i]);
mthca_free_icm(dev, table->icm[i], table->coherent);
table->icm[i] = NULL;
ret = -ENOMEM;
goto out;
@ -204,16 +263,16 @@ void mthca_table_put(struct mthca_dev *dev, struct mthca_icm_table *table, int o
mthca_UNMAP_ICM(dev, table->virt + i * MTHCA_TABLE_CHUNK_SIZE,
MTHCA_TABLE_CHUNK_SIZE / MTHCA_ICM_PAGE_SIZE,
&status);
mthca_free_icm(dev, table->icm[i]);
mthca_free_icm(dev, table->icm[i], table->coherent);
table->icm[i] = NULL;
}
mutex_unlock(&table->mutex);
}
void *mthca_table_find(struct mthca_icm_table *table, int obj)
void *mthca_table_find(struct mthca_icm_table *table, int obj, dma_addr_t *dma_handle)
{
int idx, offset, i;
int idx, offset, dma_offset, i;
struct mthca_icm_chunk *chunk;
struct mthca_icm *icm;
struct page *page = NULL;
@ -225,13 +284,22 @@ void *mthca_table_find(struct mthca_icm_table *table, int obj)
idx = (obj & (table->num_obj - 1)) * table->obj_size;
icm = table->icm[idx / MTHCA_TABLE_CHUNK_SIZE];
offset = idx % MTHCA_TABLE_CHUNK_SIZE;
dma_offset = offset = idx % MTHCA_TABLE_CHUNK_SIZE;
if (!icm)
goto out;
list_for_each_entry(chunk, &icm->chunk_list, list) {
for (i = 0; i < chunk->npages; ++i) {
if (dma_handle && dma_offset >= 0) {
if (sg_dma_len(&chunk->mem[i]) > dma_offset)
*dma_handle = sg_dma_address(&chunk->mem[i]) +
dma_offset;
dma_offset -= sg_dma_len(&chunk->mem[i]);
}
/* DMA mapping can merge pages but not split them,
* so if we found the page, dma_handle has already
* been assigned to. */
if (chunk->mem[i].length > offset) {
page = chunk->mem[i].page;
goto out;
@ -283,7 +351,7 @@ void mthca_table_put_range(struct mthca_dev *dev, struct mthca_icm_table *table,
struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev,
u64 virt, int obj_size,
int nobj, int reserved,
int use_lowmem)
int use_lowmem, int use_coherent)
{
struct mthca_icm_table *table;
int num_icm;
@ -302,6 +370,7 @@ struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev,
table->num_obj = nobj;
table->obj_size = obj_size;
table->lowmem = use_lowmem;
table->coherent = use_coherent;
mutex_init(&table->mutex);
for (i = 0; i < num_icm; ++i)
@ -314,12 +383,12 @@ struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev,
table->icm[i] = mthca_alloc_icm(dev, chunk_size >> PAGE_SHIFT,
(use_lowmem ? GFP_KERNEL : GFP_HIGHUSER) |
__GFP_NOWARN);
__GFP_NOWARN, use_coherent);
if (!table->icm[i])
goto err;
if (mthca_MAP_ICM(dev, table->icm[i], virt + i * MTHCA_TABLE_CHUNK_SIZE,
&status) || status) {
mthca_free_icm(dev, table->icm[i]);
mthca_free_icm(dev, table->icm[i], table->coherent);
table->icm[i] = NULL;
goto err;
}
@ -339,7 +408,7 @@ err:
mthca_UNMAP_ICM(dev, virt + i * MTHCA_TABLE_CHUNK_SIZE,
MTHCA_TABLE_CHUNK_SIZE / MTHCA_ICM_PAGE_SIZE,
&status);
mthca_free_icm(dev, table->icm[i]);
mthca_free_icm(dev, table->icm[i], table->coherent);
}
kfree(table);
@ -357,7 +426,7 @@ void mthca_free_icm_table(struct mthca_dev *dev, struct mthca_icm_table *table)
mthca_UNMAP_ICM(dev, table->virt + i * MTHCA_TABLE_CHUNK_SIZE,
MTHCA_TABLE_CHUNK_SIZE / MTHCA_ICM_PAGE_SIZE,
&status);
mthca_free_icm(dev, table->icm[i]);
mthca_free_icm(dev, table->icm[i], table->coherent);
}
kfree(table);

9
drivers/infiniband/hw/mthca/mthca_memfree.h
View file

@ -69,6 +69,7 @@ struct mthca_icm_table {
int num_obj;
int obj_size;
int lowmem;
int coherent;
struct mutex mutex;
struct mthca_icm *icm[0];
};
@ -82,17 +83,17 @@ struct mthca_icm_iter {
struct mthca_dev;
struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages,
gfp_t gfp_mask);
void mthca_free_icm(struct mthca_dev *dev, struct mthca_icm *icm);
gfp_t gfp_mask, int coherent);
void mthca_free_icm(struct mthca_dev *dev, struct mthca_icm *icm, int coherent);
struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev,
u64 virt, int obj_size,
int nobj, int reserved,
int use_lowmem);
int use_lowmem, int use_coherent);
void mthca_free_icm_table(struct mthca_dev *dev, struct mthca_icm_table *table);
int mthca_table_get(struct mthca_dev *dev, struct mthca_icm_table *table, int obj);
void mthca_table_put(struct mthca_dev *dev, struct mthca_icm_table *table, int obj);
void *mthca_table_find(struct mthca_icm_table *table, int obj);
void *mthca_table_find(struct mthca_icm_table *table, int obj, dma_addr_t *dma_handle);
int mthca_table_get_range(struct mthca_dev *dev, struct mthca_icm_table *table,
int start, int end);
void mthca_table_put_range(struct mthca_dev *dev, struct mthca_icm_table *table,

110
drivers/infiniband/hw/mthca/mthca_mr.c
View file

@ -243,8 +243,8 @@ void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt)
kfree(mtt);
}
int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
int start_index, u64 *buffer_list, int list_len)
static int __mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
int start_index, u64 *buffer_list, int list_len)
{
struct mthca_mailbox *mailbox;
__be64 *mtt_entry;
@ -295,6 +295,84 @@ out:
return err;
}
int mthca_write_mtt_size(struct mthca_dev *dev)
{
if (dev->mr_table.fmr_mtt_buddy != &dev->mr_table.mtt_buddy)
/*
* Be friendly to WRITE_MTT command
* and leave two empty slots for the
* index and reserved fields of the
* mailbox.
*/
return PAGE_SIZE / sizeof (u64) - 2;
/* For Arbel, all MTTs must fit in the same page. */
return mthca_is_memfree(dev) ? (PAGE_SIZE / sizeof (u64)) : 0x7ffffff;
}
void mthca_tavor_write_mtt_seg(struct mthca_dev *dev, struct mthca_mtt *mtt,
int start_index, u64 *buffer_list, int list_len)
{
u64 __iomem *mtts;
int i;
mtts = dev->mr_table.tavor_fmr.mtt_base + mtt->first_seg * MTHCA_MTT_SEG_SIZE +
start_index * sizeof (u64);
for (i = 0; i < list_len; ++i)
mthca_write64_raw(cpu_to_be64(buffer_list[i] | MTHCA_MTT_FLAG_PRESENT),
mtts + i);
}
void mthca_arbel_write_mtt_seg(struct mthca_dev *dev, struct mthca_mtt *mtt,
int start_index, u64 *buffer_list, int list_len)
{
__be64 *mtts;
dma_addr_t dma_handle;
int i;
int s = start_index * sizeof (u64);
/* For Arbel, all MTTs must fit in the same page. */
BUG_ON(s / PAGE_SIZE != (s + list_len * sizeof(u64) - 1) / PAGE_SIZE);
/* Require full segments */
BUG_ON(s % MTHCA_MTT_SEG_SIZE);
mtts = mthca_table_find(dev->mr_table.mtt_table, mtt->first_seg +
s / MTHCA_MTT_SEG_SIZE, &dma_handle);
BUG_ON(!mtts);
for (i = 0; i < list_len; ++i)
mtts[i] = cpu_to_be64(buffer_list[i] | MTHCA_MTT_FLAG_PRESENT);
dma_sync_single(&dev->pdev->dev, dma_handle, list_len * sizeof (u64), DMA_TO_DEVICE);
}
int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
int start_index, u64 *buffer_list, int list_len)
{
int size = mthca_write_mtt_size(dev);
int chunk;
if (dev->mr_table.fmr_mtt_buddy != &dev->mr_table.mtt_buddy)
return __mthca_write_mtt(dev, mtt, start_index, buffer_list, list_len);
while (list_len > 0) {
chunk = min(size, list_len);
if (mthca_is_memfree(dev))
mthca_arbel_write_mtt_seg(dev, mtt, start_index,
buffer_list, chunk);
else
mthca_tavor_write_mtt_seg(dev, mtt, start_index,
buffer_list, chunk);
list_len -= chunk;
start_index += chunk;
buffer_list += chunk;
}
return 0;
}
static inline u32 tavor_hw_index_to_key(u32 ind)
{
return ind;
@ -524,7 +602,7 @@ int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
if (err)
goto err_out_mpt_free;
mr->mem.arbel.mpt = mthca_table_find(dev->mr_table.mpt_table, key);
mr->mem.arbel.mpt = mthca_table_find(dev->mr_table.mpt_table, key, NULL);
BUG_ON(!mr->mem.arbel.mpt);
} else
mr->mem.tavor.mpt = dev->mr_table.tavor_fmr.mpt_base +
@ -538,7 +616,8 @@ int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
if (mthca_is_memfree(dev)) {
mr->mem.arbel.mtts = mthca_table_find(dev->mr_table.mtt_table,
mr->mtt->first_seg);
mr->mtt->first_seg,
&mr->mem.arbel.dma_handle);
BUG_ON(!mr->mem.arbel.mtts);
} else
mr->mem.tavor.mtts = dev->mr_table.tavor_fmr.mtt_base + mtt_seg;
@ -712,6 +791,9 @@ int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
fmr->mem.arbel.mtts[i] = cpu_to_be64(page_list[i] |
MTHCA_MTT_FLAG_PRESENT);
dma_sync_single(&dev->pdev->dev, fmr->mem.arbel.dma_handle,
list_len * sizeof(u64), DMA_TO_DEVICE);
fmr->mem.arbel.mpt->key = cpu_to_be32(key);
fmr->mem.arbel.mpt->lkey = cpu_to_be32(key);
fmr->mem.arbel.mpt->length = cpu_to_be64(list_len * (1ull << fmr->attr.page_shift));
@ -761,7 +843,7 @@ void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr)
int mthca_init_mr_table(struct mthca_dev *dev)
{
unsigned long addr;
int err, i;
int mpts, mtts, err, i;
err = mthca_alloc_init(&dev->mr_table.mpt_alloc,
dev->limits.num_mpts,
@ -795,13 +877,21 @@ int mthca_init_mr_table(struct mthca_dev *dev)
err = -EINVAL;
goto err_fmr_mpt;
}
mpts = mtts = 1 << i;
} else {
mpts = dev->limits.num_mtt_segs;
mtts = dev->limits.num_mpts;
}
if (!mthca_is_memfree(dev) &&
(dev->mthca_flags & MTHCA_FLAG_FMR)) {
addr = pci_resource_start(dev->pdev, 4) +
((pci_resource_len(dev->pdev, 4) - 1) &
dev->mr_table.mpt_base);
dev->mr_table.tavor_fmr.mpt_base =
ioremap(addr, (1 << i) * sizeof(struct mthca_mpt_entry));
ioremap(addr, mpts * sizeof(struct mthca_mpt_entry));
if (!dev->mr_table.tavor_fmr.mpt_base) {
mthca_warn(dev, "MPT ioremap for FMR failed.\n");
@ -814,19 +904,21 @@ int mthca_init_mr_table(struct mthca_dev *dev)
dev->mr_table.mtt_base);
dev->mr_table.tavor_fmr.mtt_base =
ioremap(addr, (1 << i) * MTHCA_MTT_SEG_SIZE);
ioremap(addr, mtts * MTHCA_MTT_SEG_SIZE);
if (!dev->mr_table.tavor_fmr.mtt_base) {
mthca_warn(dev, "MTT ioremap for FMR failed.\n");
err = -ENOMEM;
goto err_fmr_mtt;
}
}
err = mthca_buddy_init(&dev->mr_table.tavor_fmr.mtt_buddy, i);
if (dev->limits.fmr_reserved_mtts) {
err = mthca_buddy_init(&dev->mr_table.tavor_fmr.mtt_buddy, fls(mtts - 1));
if (err)
goto err_fmr_mtt_buddy;
/* Prevent regular MRs from using FMR keys */
err = mthca_buddy_alloc(&dev->mr_table.mtt_buddy, i);
err = mthca_buddy_alloc(&dev->mr_table.mtt_buddy, fls(mtts - 1));
if (err)
goto err_reserve_fmr;

2
drivers/infiniband/hw/mthca/mthca_profile.c
View file

@ -277,7 +277,7 @@ u64 mthca_make_profile(struct mthca_dev *dev,
* out of the MR pool. They don't use additional memory, but
* we assign them as part of the HCA profile anyway.
*/
if (mthca_is_memfree(dev))
if (mthca_is_memfree(dev) || BITS_PER_LONG == 64)
dev->limits.fmr_reserved_mtts = 0;
else
dev->limits.fmr_reserved_mtts = request->fmr_reserved_mtts;

14
drivers/infiniband/hw/mthca/mthca_provider.c
View file

@ -1015,6 +1015,7 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
int shift, n, len;
int i, j, k;
int err = 0;
int write_mtt_size;
shift = ffs(region->page_size) - 1;
@ -1040,6 +1041,8 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
i = n = 0;
write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages));
list_for_each_entry(chunk, &region->chunk_list, list)
for (j = 0; j < chunk->nmap; ++j) {
len = sg_dma_len(&chunk->page_list[j]) >> shift;
@ -1047,14 +1050,11 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
pages[i++] = sg_dma_address(&chunk->page_list[j]) +
region->page_size * k;
/*
* Be friendly to WRITE_MTT command
* and leave two empty slots for the
* index and reserved fields of the
* mailbox.
* Be friendly to write_mtt and pass it chunks
* of appropriate size.
*/
if (i == PAGE_SIZE / sizeof (u64) - 2) {
err = mthca_write_mtt(dev, mr->mtt,
n, pages, i);
if (i == write_mtt_size) {
err = mthca_write_mtt(dev, mr->mtt, n, pages, i);
if (err)
goto mtt_done;
n += i;

1
drivers/infiniband/hw/mthca/mthca_provider.h
View file

@ -89,6 +89,7 @@ struct mthca_fmr {
struct {
struct mthca_mpt_entry *mpt;
__be64 *mtts;
dma_addr_t dma_handle;
} arbel;
} mem;
};

2
drivers/infiniband/hw/mthca/mthca_qp.c
View file

@ -399,7 +399,7 @@ static int to_ib_qp_access_flags(int mthca_flags)
static void to_ib_ah_attr(struct mthca_dev *dev, struct ib_ah_attr *ib_ah_attr,
struct mthca_qp_path *path)
{
memset(ib_ah_attr, 0, sizeof *path);
memset(ib_ah_attr, 0, sizeof *ib_ah_attr);
ib_ah_attr->port_num = (be32_to_cpu(path->port_pkey) >> 24) & 0x3;
if (ib_ah_attr->port_num == 0 || ib_ah_attr->port_num > dev->limits.num_ports)

9
drivers/infiniband/hw/mthca/mthca_srq.c
View file

@ -116,11 +116,16 @@ static void mthca_arbel_init_srq_context(struct mthca_dev *dev,
struct mthca_srq *srq,
struct mthca_arbel_srq_context *context)
{
int logsize;
int logsize, max;
memset(context, 0, sizeof *context);
logsize = ilog2(srq->max);
/*
* Put max in a temporary variable to work around gcc bug
* triggered by ilog2() on sparc64.
*/
max = srq->max;
logsize = ilog2(max);
context->state_logsize_srqn = cpu_to_be32(logsize << 24 | srq->srqn);
context->lkey = cpu_to_be32(srq->mr.ibmr.lkey);
context->db_index = cpu_to_be32(srq->db_index);

16
drivers/infiniband/ulp/ipoib/Kconfig
View file

@ -1,6 +1,6 @@
config INFINIBAND_IPOIB
tristate "IP-over-InfiniBand"
depends on INFINIBAND && NETDEVICES && INET
depends on INFINIBAND && NETDEVICES && INET && (IPV6 || IPV6=n)
---help---
Support for the IP-over-InfiniBand protocol (IPoIB). This
transports IP packets over InfiniBand so you can use your IB
@ -8,6 +8,20 @@ config INFINIBAND_IPOIB
See Documentation/infiniband/ipoib.txt for more information
config INFINIBAND_IPOIB_CM
bool "IP-over-InfiniBand Connected Mode support"
depends on INFINIBAND_IPOIB && EXPERIMENTAL
default n
---help---
This option enables experimental support for IPoIB connected mode.
After enabling this option, you need to switch to connected mode through
/sys/class/net/ibXXX/mode to actually create connections, and then increase
the interface MTU with e.g. ifconfig ib0 mtu 65520.
WARNING: Enabling connected mode will trigger some
packet drops for multicast and UD mode traffic from this interface,
unless you limit mtu for these destinations to 2044.
config INFINIBAND_IPOIB_DEBUG
bool "IP-over-InfiniBand debugging" if EMBEDDED
depends on INFINIBAND_IPOIB

1
drivers/infiniband/ulp/ipoib/Makefile
View file

@ -5,5 +5,6 @@ ib_ipoib-y := ipoib_main.o \
ipoib_multicast.o \
ipoib_verbs.o \
ipoib_vlan.o
ib_ipoib-$(CONFIG_INFINIBAND_IPOIB_CM) += ipoib_cm.o
ib_ipoib-$(CONFIG_INFINIBAND_IPOIB_DEBUG) += ipoib_fs.o

215
drivers/infiniband/ulp/ipoib/ipoib.h
View file

@ -62,6 +62,10 @@ enum {
IPOIB_ENCAP_LEN = 4,
IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */
IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,
IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
IPOIB_RX_RING_SIZE = 128,
IPOIB_TX_RING_SIZE = 64,
IPOIB_MAX_QUEUE_SIZE = 8192,
@ -81,6 +85,8 @@ enum {
IPOIB_MCAST_RUN = 6,
IPOIB_STOP_REAPER = 7,
IPOIB_MCAST_STARTED = 8,
IPOIB_FLAG_NETIF_STOPPED = 9,
IPOIB_FLAG_ADMIN_CM = 10,
IPOIB_MAX_BACKOFF_SECONDS = 16,
@ -90,6 +96,13 @@ enum {
IPOIB_MCAST_FLAG_ATTACHED = 3,
};
#define IPOIB_OP_RECV (1ul << 31)
#ifdef CONFIG_INFINIBAND_IPOIB_CM
#define IPOIB_CM_OP_SRQ (1ul << 30)
#else
#define IPOIB_CM_OP_SRQ (0)
#endif
/* structs */
struct ipoib_header {
@ -113,6 +126,59 @@ struct ipoib_tx_buf {
u64 mapping;
};
struct ib_cm_id;
struct ipoib_cm_data {
__be32 qpn; /* High byte MUST be ignored on receive */
__be32 mtu;
};
struct ipoib_cm_rx {
struct ib_cm_id *id;
struct ib_qp *qp;
struct list_head list;
struct net_device *dev;
unsigned long jiffies;
};
struct ipoib_cm_tx {
struct ib_cm_id *id;
struct ib_cq *cq;
struct ib_qp *qp;
struct list_head list;
struct net_device *dev;
struct ipoib_neigh *neigh;
struct ipoib_path *path;
struct ipoib_tx_buf *tx_ring;
unsigned tx_head;
unsigned tx_tail;
unsigned long flags;
u32 mtu;
struct ib_wc ibwc[IPOIB_NUM_WC];
};
struct ipoib_cm_rx_buf {
struct sk_buff *skb;
u64 mapping[IPOIB_CM_RX_SG];
};
struct ipoib_cm_dev_priv {
struct ib_srq *srq;
struct ipoib_cm_rx_buf *srq_ring;
struct ib_cm_id *id;
struct list_head passive_ids;
struct work_struct start_task;
struct work_struct reap_task;
struct work_struct skb_task;
struct delayed_work stale_task;
struct sk_buff_head skb_queue;
struct list_head start_list;
struct list_head reap_list;
struct ib_wc ibwc[IPOIB_NUM_WC];
struct ib_sge rx_sge[IPOIB_CM_RX_SG];
struct ib_recv_wr rx_wr;
};
/*
* Device private locking: tx_lock protects members used in TX fast
* path (and we use LLTX so upper layers don't do extra locking).
@ -179,6 +245,10 @@ struct ipoib_dev_priv {
struct list_head child_intfs;
struct list_head list;
#ifdef CONFIG_INFINIBAND_IPOIB_CM
struct ipoib_cm_dev_priv cm;
#endif
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
struct list_head fs_list;
struct dentry *mcg_dentry;
@ -212,6 +282,9 @@ struct ipoib_path {
struct ipoib_neigh {
struct ipoib_ah *ah;
#ifdef CONFIG_INFINIBAND_IPOIB_CM
struct ipoib_cm_tx *cm;
#endif
union ib_gid dgid;
struct sk_buff_head queue;
@ -315,6 +388,146 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
void ipoib_pkey_poll(struct work_struct *work);
int ipoib_pkey_dev_delay_open(struct net_device *dev);
#ifdef CONFIG_INFINIBAND_IPOIB_CM
#define IPOIB_FLAGS_RC 0x80
#define IPOIB_FLAGS_UC 0x40
/* We don't support UC connections at the moment */
#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
static inline int ipoib_cm_admin_enabled(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
}
static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
return IPOIB_CM_SUPPORTED(n->ha) &&
test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
}
static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
{
return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
}
static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
{
return neigh->cm;
}
static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
{
neigh->cm = tx;
}
void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
int ipoib_cm_dev_open(struct net_device *dev);
void ipoib_cm_dev_stop(struct net_device *dev);
int ipoib_cm_dev_init(struct net_device *dev);
int ipoib_cm_add_mode_attr(struct net_device *dev);
void ipoib_cm_dev_cleanup(struct net_device *dev);
struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
struct ipoib_neigh *neigh);
void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
void ipoib_cm_skb_too_long(struct net_device* dev, struct sk_buff *skb,
unsigned int mtu);
void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
#else
struct ipoib_cm_tx;
static inline int ipoib_cm_admin_enabled(struct net_device *dev)
{
return 0;
}
static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
{
return 0;
}
static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
{
return 0;
}
static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
{
return NULL;
}
static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
{
}
static inline
void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
{
return;
}
static inline
int ipoib_cm_dev_open(struct net_device *dev)
{
return 0;
}
static inline
void ipoib_cm_dev_stop(struct net_device *dev)
{
return;
}
static inline
int ipoib_cm_dev_init(struct net_device *dev)
{
return -ENOSYS;
}
static inline
void ipoib_cm_dev_cleanup(struct net_device *dev)
{
return;
}
static inline
struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
struct ipoib_neigh *neigh)
{
return NULL;
}
static inline
void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
{
return;
}
static inline
int ipoib_cm_add_mode_attr(struct net_device *dev)
{
return 0;
}
static inline void ipoib_cm_skb_too_long(struct net_device* dev, struct sk_buff *skb,
unsigned int mtu)
{
dev_kfree_skb_any(skb);
}
static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
{
}
#endif
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
void ipoib_create_debug_files(struct net_device *dev);
void ipoib_delete_debug_files(struct net_device *dev);
@ -392,4 +605,6 @@ extern int ipoib_debug_level;
#define IPOIB_GID_ARG(gid) IPOIB_GID_RAW_ARG((gid).raw)
#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
#endif /* _IPOIB_H */

1237
drivers/infiniband/ulp/ipoib/ipoib_cm.c Normal file
View file

File diff suppressed because it is too large Load diff

29
drivers/infiniband/ulp/ipoib/ipoib_ib.c
View file

@ -50,8 +50,6 @@ MODULE_PARM_DESC(data_debug_level,
"Enable data path debug tracing if > 0");
#endif
#define IPOIB_OP_RECV (1ul << 31)
static DEFINE_MUTEX(pkey_mutex);
struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
@ -268,10 +266,11 @@ static void ipoib_ib_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
spin_lock_irqsave(&priv->tx_lock, flags);
++priv->tx_tail;
if (netif_queue_stopped(dev) &&
test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags) &&
priv->tx_head - priv->tx_tail <= ipoib_sendq_size >> 1)
if (unlikely(test_bit(IPOIB_FLAG_NETIF_STOPPED, &priv->flags)) &&
priv->tx_head - priv->tx_tail <= ipoib_sendq_size >> 1) {
clear_bit(IPOIB_FLAG_NETIF_STOPPED, &priv->flags);
netif_wake_queue(dev);
}
spin_unlock_irqrestore(&priv->tx_lock, flags);
if (wc->status != IB_WC_SUCCESS &&
@ -283,7 +282,9 @@ static void ipoib_ib_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
static void ipoib_ib_handle_wc(struct net_device *dev, struct ib_wc *wc)
{
if (wc->wr_id & IPOIB_OP_RECV)
if (wc->wr_id & IPOIB_CM_OP_SRQ)
ipoib_cm_handle_rx_wc(dev, wc);
else if (wc->wr_id & IPOIB_OP_RECV)
ipoib_ib_handle_rx_wc(dev, wc);
else
ipoib_ib_handle_tx_wc(dev, wc);
@ -327,12 +328,12 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb,
struct ipoib_tx_buf *tx_req;
u64 addr;
if (unlikely(skb->len > dev->mtu + INFINIBAND_ALEN)) {
if (unlikely(skb->len > priv->mcast_mtu + INFINIBAND_ALEN)) {
ipoib_warn(priv, "packet len %d (> %d) too long to send, dropping\n",
skb->len, dev->mtu + INFINIBAND_ALEN);
skb->len, priv->mcast_mtu + INFINIBAND_ALEN);
++priv->stats.tx_dropped;
++priv->stats.tx_errors;
dev_kfree_skb_any(skb);
ipoib_cm_skb_too_long(dev, skb, priv->mcast_mtu);
return;
}
@ -372,6 +373,7 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb,
if (priv->tx_head - priv->tx_tail == ipoib_sendq_size) {
ipoib_dbg(priv, "TX ring full, stopping kernel net queue\n");
netif_stop_queue(dev);
set_bit(IPOIB_FLAG_NETIF_STOPPED, &priv->flags);
}
}
}
@ -424,6 +426,13 @@ int ipoib_ib_dev_open(struct net_device *dev)
return -1;
}
ret = ipoib_cm_dev_open(dev);
if (ret) {
ipoib_warn(priv, "ipoib_ib_post_receives returned %d\n", ret);
ipoib_ib_dev_stop(dev);
return -1;
}
clear_bit(IPOIB_STOP_REAPER, &priv->flags);
queue_delayed_work(ipoib_workqueue, &priv->ah_reap_task, HZ);
@ -509,6 +518,8 @@ int ipoib_ib_dev_stop(struct net_device *dev)
clear_bit(IPOIB_FLAG_INITIALIZED, &priv->flags);
ipoib_cm_dev_stop(dev);
/*
* Move our QP to the error state and then reinitialize in
* when all work requests have completed or have been flushed.

63
drivers/infiniband/ulp/ipoib/ipoib_main.c
View file

@ -49,8 +49,6 @@
#include <net/dst.h>
#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
MODULE_AUTHOR("Roland Dreier");
MODULE_DESCRIPTION("IP-over-InfiniBand net driver");
MODULE_LICENSE("Dual BSD/GPL");
@ -145,6 +143,8 @@ static int ipoib_stop(struct net_device *dev)
netif_stop_queue(dev);
clear_bit(IPOIB_FLAG_NETIF_STOPPED, &priv->flags);
/*
* Now flush workqueue to make sure a scheduled task doesn't
* bring our internal state back up.
@ -178,8 +178,18 @@ static int ipoib_change_mtu(struct net_device *dev, int new_mtu)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
if (new_mtu > IPOIB_PACKET_SIZE - IPOIB_ENCAP_LEN)
/* dev->mtu > 2K ==> connected mode */
if (ipoib_cm_admin_enabled(dev) && new_mtu <= IPOIB_CM_MTU) {
if (new_mtu > priv->mcast_mtu)
ipoib_warn(priv, "mtu > %d will cause multicast packet drops.\n",
priv->mcast_mtu);
dev->mtu = new_mtu;
return 0;
}
if (new_mtu > IPOIB_PACKET_SIZE - IPOIB_ENCAP_LEN) {
return -EINVAL;
}
priv->admin_mtu = new_mtu;
@ -414,6 +424,20 @@ static void path_rec_completion(int status,
memcpy(&neigh->dgid.raw, &path->pathrec.dgid.raw,
sizeof(union ib_gid));
if (ipoib_cm_enabled(dev, neigh->neighbour)) {
if (!ipoib_cm_get(neigh))
ipoib_cm_set(neigh, ipoib_cm_create_tx(dev,
path,
neigh));
if (!ipoib_cm_get(neigh)) {
list_del(&neigh->list);
if (neigh->ah)
ipoib_put_ah(neigh->ah);
ipoib_neigh_free(dev, neigh);
continue;
}
}
while ((skb = __skb_dequeue(&neigh->queue)))
__skb_queue_tail(&skqueue, skb);
}
@ -520,7 +544,25 @@ static void neigh_add_path(struct sk_buff *skb, struct net_device *dev)
memcpy(&neigh->dgid.raw, &path->pathrec.dgid.raw,
sizeof(union ib_gid));
ipoib_send(dev, skb, path->ah, IPOIB_QPN(skb->dst->neighbour->ha));
if (ipoib_cm_enabled(dev, neigh->neighbour)) {
if (!ipoib_cm_get(neigh))
ipoib_cm_set(neigh, ipoib_cm_create_tx(dev, path, neigh));
if (!ipoib_cm_get(neigh)) {
list_del(&neigh->list);
if (neigh->ah)
ipoib_put_ah(neigh->ah);
ipoib_neigh_free(dev, neigh);
goto err_drop;
}
if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE)
__skb_queue_tail(&neigh->queue, skb);
else {
ipoib_warn(priv, "queue length limit %d. Packet drop.\n",
skb_queue_len(&neigh->queue));
goto err_drop;
}
} else
ipoib_send(dev, skb, path->ah, IPOIB_QPN(skb->dst->neighbour->ha));
} else {
neigh->ah = NULL;
@ -538,6 +580,7 @@ err_list:
err_path:
ipoib_neigh_free(dev, neigh);
err_drop:
++priv->stats.tx_dropped;
dev_kfree_skb_any(skb);
@ -640,7 +683,12 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev)
neigh = *to_ipoib_neigh(skb->dst->neighbour);
if (likely(neigh->ah)) {
if (ipoib_cm_get(neigh)) {
if (ipoib_cm_up(neigh)) {
ipoib_cm_send(dev, skb, ipoib_cm_get(neigh));
goto out;
}
} else if (neigh->ah) {
if (unlikely(memcmp(&neigh->dgid.raw,
skb->dst->neighbour->ha + 4,
sizeof(union ib_gid)))) {
@ -805,6 +853,7 @@ struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neighbour)
neigh->neighbour = neighbour;
*to_ipoib_neigh(neighbour) = neigh;
skb_queue_head_init(&neigh->queue);
ipoib_cm_set(neigh, NULL);
return neigh;
}
@ -818,6 +867,8 @@ void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh)
++priv->stats.tx_dropped;
dev_kfree_skb_any(skb);
}
if (ipoib_cm_get(neigh))
ipoib_cm_destroy_tx(ipoib_cm_get(neigh));
kfree(neigh);
}
@ -1080,6 +1131,8 @@ static struct net_device *ipoib_add_port(const char *format,
ipoib_create_debug_files(priv->dev);
if (ipoib_cm_add_mode_attr(priv->dev))
goto sysfs_failed;
if (ipoib_add_pkey_attr(priv->dev))
goto sysfs_failed;
if (device_create_file(&priv->dev->dev, &dev_attr_create_child))

4
drivers/infiniband/ulp/ipoib/ipoib_multicast.c
View file

@ -597,7 +597,9 @@ void ipoib_mcast_join_task(struct work_struct *work)
priv->mcast_mtu = ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu) -
IPOIB_ENCAP_LEN;
dev->mtu = min(priv->mcast_mtu, priv->admin_mtu);
if (!ipoib_cm_admin_enabled(dev))
dev->mtu = min(priv->mcast_mtu, priv->admin_mtu);
ipoib_dbg_mcast(priv, "successfully joined all multicast groups\n");

40
drivers/infiniband/ulp/ipoib/ipoib_verbs.c
View file

@ -168,35 +168,41 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
.qp_type = IB_QPT_UD
};
int ret, size;
priv->pd = ib_alloc_pd(priv->ca);
if (IS_ERR(priv->pd)) {
printk(KERN_WARNING "%s: failed to allocate PD\n", ca->name);
return -ENODEV;
}
priv->cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL, dev,
ipoib_sendq_size + ipoib_recvq_size + 1);
priv->mr = ib_get_dma_mr(priv->pd, IB_ACCESS_LOCAL_WRITE);
if (IS_ERR(priv->mr)) {
printk(KERN_WARNING "%s: ib_get_dma_mr failed\n", ca->name);
goto out_free_pd;
}
size = ipoib_sendq_size + ipoib_recvq_size + 1;
ret = ipoib_cm_dev_init(dev);
if (!ret)
size += ipoib_recvq_size;
priv->cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL, dev, size);
if (IS_ERR(priv->cq)) {
printk(KERN_WARNING "%s: failed to create CQ\n", ca->name);
goto out_free_pd;
goto out_free_mr;
}
if (ib_req_notify_cq(priv->cq, IB_CQ_NEXT_COMP))
goto out_free_cq;
priv->mr = ib_get_dma_mr(priv->pd, IB_ACCESS_LOCAL_WRITE);
if (IS_ERR(priv->mr)) {
printk(KERN_WARNING "%s: ib_get_dma_mr failed\n", ca->name);
goto out_free_cq;
}
init_attr.send_cq = priv->cq;
init_attr.recv_cq = priv->cq,
priv->qp = ib_create_qp(priv->pd, &init_attr);
if (IS_ERR(priv->qp)) {
printk(KERN_WARNING "%s: failed to create QP\n", ca->name);
goto out_free_mr;
goto out_free_cq;
}
priv->dev->dev_addr[1] = (priv->qp->qp_num >> 16) & 0xff;
@ -212,12 +218,12 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
return 0;
out_free_mr:
ib_dereg_mr(priv->mr);
out_free_cq:
ib_destroy_cq(priv->cq);
out_free_mr:
ib_dereg_mr(priv->mr);
out_free_pd:
ib_dealloc_pd(priv->pd);
return -ENODEV;
@ -235,12 +241,14 @@ void ipoib_transport_dev_cleanup(struct net_device *dev)
clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
}
if (ib_dereg_mr(priv->mr))
ipoib_warn(priv, "ib_dereg_mr failed\n");
if (ib_destroy_cq(priv->cq))
ipoib_warn(priv, "ib_cq_destroy failed\n");
ipoib_cm_dev_cleanup(dev);
if (ib_dereg_mr(priv->mr))
ipoib_warn(priv, "ib_dereg_mr failed\n");
if (ib_dealloc_pd(priv->pd))
ipoib_warn(priv, "ib_dealloc_pd failed\n");
}

2
drivers/infiniband/ulp/ipoib/ipoib_vlan.c
View file

@ -115,6 +115,8 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
ipoib_create_debug_files(priv->dev);
if (ipoib_cm_add_mode_attr(priv->dev))
goto sysfs_failed;
if (ipoib_add_pkey_attr(priv->dev))
goto sysfs_failed;