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libata-link: introduce ata_link

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Introduce ata_link.  It abstracts PHY and sits between ata_port and
ata_device.  This new level of abstraction is necessary to support
SATA Port Multiplier, which basically adds a bunch of links (PHYs) to
a ATA host port.  Fields related to command execution, spd_limit and
EH are per-link and thus moved to ata_link.

This patch only defines the host link.  Multiple link handling will be
added later.  Also, a lot of ap->link derefences are added but many of
them will be removed as each part is converted to deal directly with
ata_link instead of ata_port.

This patch introduces no behavior change.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2007-08-06 18:36:22 +09:00 committed by Jeff Garzik
parent 640fdb5049
commit 9af5c9c97d
33 changed files with 280 additions and 255 deletions
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18
drivers/ata/ahci.c
View file

@ -1064,7 +1064,7 @@ static int ahci_do_softreset(struct ata_port *ap, unsigned int *class,
ata_port_printk(ap, KERN_WARNING,
"failed to reset engine (errno=%d)", rc);
ata_tf_init(ap->device, &tf);
ata_tf_init(ap->link.device, &tf);
/* issue the first D2H Register FIS */
msecs = 0;
@ -1132,7 +1132,7 @@ static int ahci_hardreset(struct ata_port *ap, unsigned int *class,
ahci_stop_engine(ap);
/* clear D2H reception area to properly wait for D2H FIS */
ata_tf_init(ap->device, &tf);
ata_tf_init(ap->link.device, &tf);
tf.command = 0x80;
ata_tf_to_fis(&tf, 0, 0, d2h_fis);
@ -1159,7 +1159,7 @@ static int ahci_vt8251_hardreset(struct ata_port *ap, unsigned int *class,
ahci_stop_engine(ap);
rc = sata_port_hardreset(ap, sata_ehc_deb_timing(&ap->eh_context),
rc = sata_port_hardreset(ap, sata_ehc_deb_timing(&ap->link.eh_context),
deadline);
/* vt8251 needs SError cleared for the port to operate */
@ -1278,7 +1278,7 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc)
static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
{
struct ahci_port_priv *pp = ap->private_data;
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
unsigned int err_mask = 0, action = 0;
struct ata_queued_cmd *qc;
u32 serror;
@ -1332,7 +1332,7 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
ehi->serror |= serror;
ehi->action |= action;
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc)
qc->err_mask |= err_mask;
else
@ -1347,7 +1347,7 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
static void ahci_port_intr(struct ata_port *ap)
{
void __iomem *port_mmio = ap->ioaddr.cmd_addr;
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
struct ahci_port_priv *pp = ap->private_data;
u32 status, qc_active;
int rc, known_irq = 0;
@ -1360,7 +1360,7 @@ static void ahci_port_intr(struct ata_port *ap)
return;
}
if (ap->sactive)
if (ap->link.sactive)
qc_active = readl(port_mmio + PORT_SCR_ACT);
else
qc_active = readl(port_mmio + PORT_CMD_ISSUE);
@ -1380,7 +1380,7 @@ static void ahci_port_intr(struct ata_port *ap)
/* if !NCQ, ignore. No modern ATA device has broken HSM
* implementation for non-NCQ commands.
*/
if (!ap->sactive)
if (!ap->link.sactive)
return;
if (status & PORT_IRQ_D2H_REG_FIS) {
@ -1433,7 +1433,7 @@ static void ahci_port_intr(struct ata_port *ap)
if (!known_irq)
ata_port_printk(ap, KERN_INFO, "spurious interrupt "
"(irq_stat 0x%x active_tag 0x%x sactive 0x%x)\n",
status, ap->active_tag, ap->sactive);
status, ap->link.active_tag, ap->link.sactive);
}
static void ahci_irq_clear(struct ata_port *ap)

2
drivers/ata/ata_generic.c
View file

@ -53,7 +53,7 @@ static int generic_set_mode(struct ata_port *ap, struct ata_device **unused)
dma_enabled = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
struct ata_device *dev = &ap->link.device[i];
if (ata_dev_enabled(dev)) {
/* We don't really care */
dev->pio_mode = XFER_PIO_0;

21
drivers/ata/libata-acpi.c
View file

@ -44,7 +44,8 @@ static void ata_acpi_associate_sata_port(struct ata_port *ap)
{
acpi_integer adr = SATA_ADR(ap->port_no, NO_PORT_MULT);
ap->device->acpi_handle = acpi_get_child(ap->host->acpi_handle, adr);
ap->link.device->acpi_handle =
acpi_get_child(ap->host->acpi_handle, adr);
}
static void ata_acpi_associate_ide_port(struct ata_port *ap)
@ -60,7 +61,7 @@ static void ata_acpi_associate_ide_port(struct ata_port *ap)
max_devices++;
for (i = 0; i < max_devices; i++) {
struct ata_device *dev = &ap->device[i];
struct ata_device *dev = &ap->link.device[i];
dev->acpi_handle = acpi_get_child(ap->acpi_handle, i);
}
@ -182,10 +183,10 @@ static int ata_acpi_stm(const struct ata_port *ap, struct ata_acpi_gtm *stm)
/* Buffers for id may need byteswapping ? */
in_params[1].type = ACPI_TYPE_BUFFER;
in_params[1].buffer.length = 512;
in_params[1].buffer.pointer = (u8 *)ap->device[0].id;
in_params[1].buffer.pointer = (u8 *)ap->link.device[0].id;
in_params[2].type = ACPI_TYPE_BUFFER;
in_params[2].buffer.length = 512;
in_params[2].buffer.pointer = (u8 *)ap->device[1].id;
in_params[2].buffer.pointer = (u8 *)ap->link.device[1].id;
input.count = 3;
input.pointer = in_params;
@ -226,7 +227,7 @@ static int ata_acpi_stm(const struct ata_port *ap, struct ata_acpi_gtm *stm)
static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf,
void **ptr_to_free)
{
struct ata_port *ap = dev->ap;
struct ata_port *ap = dev->link->ap;
acpi_status status;
struct acpi_buffer output;
union acpi_object *out_obj;
@ -320,7 +321,7 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf,
static int taskfile_load_raw(struct ata_device *dev,
const struct ata_acpi_gtf *gtf)
{
struct ata_port *ap = dev->ap;
struct ata_port *ap = dev->link->ap;
struct ata_taskfile tf, rtf;
unsigned int err_mask;
@ -424,7 +425,7 @@ static int ata_acpi_exec_tfs(struct ata_device *dev)
*/
static int ata_acpi_push_id(struct ata_device *dev)
{
struct ata_port *ap = dev->ap;
struct ata_port *ap = dev->link->ap;
int err;
acpi_status status;
struct acpi_object_list input;
@ -519,7 +520,7 @@ void ata_acpi_on_resume(struct ata_port *ap)
/* schedule _GTF */
for (i = 0; i < ATA_MAX_DEVICES; i++)
ap->device[i].flags |= ATA_DFLAG_ACPI_PENDING;
ap->link.device[i].flags |= ATA_DFLAG_ACPI_PENDING;
}
/**
@ -538,8 +539,8 @@ void ata_acpi_on_resume(struct ata_port *ap)
*/
int ata_acpi_on_devcfg(struct ata_device *dev)
{
struct ata_port *ap = dev->ap;
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_port *ap = dev->link->ap;
struct ata_eh_context *ehc = &ap->link.eh_context;
int acpi_sata = ap->flags & ATA_FLAG_ACPI_SATA;
int rc;

157
drivers/ata/libata-core.c
View file

@ -235,7 +235,7 @@ static int ata_rwcmd_protocol(struct ata_taskfile *tf, struct ata_device *dev)
if (dev->flags & ATA_DFLAG_PIO) {
tf->protocol = ATA_PROT_PIO;
index = dev->multi_count ? 0 : 8;
} else if (lba48 && (dev->ap->flags & ATA_FLAG_PIO_LBA48)) {
} else if (lba48 && (dev->link->ap->flags & ATA_FLAG_PIO_LBA48)) {
/* Unable to use DMA due to host limitation */
tf->protocol = ATA_PROT_PIO;
index = dev->multi_count ? 0 : 8;
@ -604,7 +604,7 @@ static const char *sata_spd_string(unsigned int spd)
void ata_dev_disable(struct ata_device *dev)
{
if (ata_dev_enabled(dev)) {
if (ata_msg_drv(dev->ap))
if (ata_msg_drv(dev->link->ap))
ata_dev_printk(dev, KERN_WARNING, "disabled\n");
ata_down_xfermask_limit(dev, ATA_DNXFER_FORCE_PIO0 |
ATA_DNXFER_QUIET);
@ -735,7 +735,7 @@ ata_dev_try_classify(struct ata_port *ap, unsigned int device, u8 *r_err)
/* see if device passed diags: if master then continue and warn later */
if (err == 0 && device == 0)
/* diagnostic fail : do nothing _YET_ */
ap->device[device].horkage |= ATA_HORKAGE_DIAGNOSTIC;
ap->link.device[device].horkage |= ATA_HORKAGE_DIAGNOSTIC;
else if (err == 1)
/* do nothing */ ;
else if ((device == 0) && (err == 0x81))
@ -1150,7 +1150,7 @@ void ata_dev_select(struct ata_port *ap, unsigned int device,
ap->ops->dev_select(ap, device);
if (wait) {
if (can_sleep && ap->device[device].class == ATA_DEV_ATAPI)
if (can_sleep && ap->link.device[device].class == ATA_DEV_ATAPI)
msleep(150);
ata_wait_idle(ap);
}
@ -1346,7 +1346,8 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
int dma_dir, struct scatterlist *sg,
unsigned int n_elem)
{
struct ata_port *ap = dev->ap;
struct ata_link *link = dev->link;
struct ata_port *ap = link->ap;
u8 command = tf->command;
struct ata_queued_cmd *qc;
unsigned int tag, preempted_tag;
@ -1386,11 +1387,11 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
qc->dev = dev;
ata_qc_reinit(qc);
preempted_tag = ap->active_tag;
preempted_sactive = ap->sactive;
preempted_tag = link->active_tag;
preempted_sactive = link->sactive;
preempted_qc_active = ap->qc_active;
ap->active_tag = ATA_TAG_POISON;
ap->sactive = 0;
link->active_tag = ATA_TAG_POISON;
link->sactive = 0;
ap->qc_active = 0;
/* prepare & issue qc */
@ -1467,8 +1468,8 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
err_mask = qc->err_mask;
ata_qc_free(qc);
ap->active_tag = preempted_tag;
ap->sactive = preempted_sactive;
link->active_tag = preempted_tag;
link->sactive = preempted_sactive;
ap->qc_active = preempted_qc_active;
/* XXX - Some LLDDs (sata_mv) disable port on command failure.
@ -1566,7 +1567,7 @@ unsigned int ata_pio_need_iordy(const struct ata_device *adev)
{
/* Controller doesn't support IORDY. Probably a pointless check
as the caller should know this */
if (adev->ap->flags & ATA_FLAG_NO_IORDY)
if (adev->link->ap->flags & ATA_FLAG_NO_IORDY)
return 0;
/* PIO3 and higher it is mandatory */
if (adev->pio_mode > XFER_PIO_2)
@ -1622,7 +1623,7 @@ static u32 ata_pio_mask_no_iordy(const struct ata_device *adev)
int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
unsigned int flags, u16 *id)
{
struct ata_port *ap = dev->ap;
struct ata_port *ap = dev->link->ap;
unsigned int class = *p_class;
struct ata_taskfile tf;
unsigned int err_mask = 0;
@ -1774,13 +1775,14 @@ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
static inline u8 ata_dev_knobble(struct ata_device *dev)
{
return ((dev->ap->cbl == ATA_CBL_SATA) && (!ata_id_is_sata(dev->id)));
struct ata_port *ap = dev->link->ap;
return ((ap->cbl == ATA_CBL_SATA) && (!ata_id_is_sata(dev->id)));
}
static void ata_dev_config_ncq(struct ata_device *dev,
char *desc, size_t desc_sz)
{
struct ata_port *ap = dev->ap;
struct ata_port *ap = dev->link->ap;
int hdepth = 0, ddepth = ata_id_queue_depth(dev->id);
if (!ata_id_has_ncq(dev->id)) {
@ -1817,8 +1819,8 @@ static void ata_dev_config_ncq(struct ata_device *dev,
*/
int ata_dev_configure(struct ata_device *dev)
{
struct ata_port *ap = dev->ap;
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_port *ap = dev->link->ap;
struct ata_eh_context *ehc = &dev->link->eh_context;
int print_info = ehc->i.flags & ATA_EHI_PRINTINFO;
const u16 *id = dev->id;
unsigned int xfer_mask;
@ -2116,7 +2118,7 @@ int ata_bus_probe(struct ata_port *ap)
ap->ops->phy_reset(ap);
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
dev = &ap->link.device[i];
if (!(ap->flags & ATA_FLAG_DISABLED) &&
dev->class != ATA_DEV_UNKNOWN)
@ -2133,14 +2135,14 @@ int ata_bus_probe(struct ata_port *ap)
state is undefined. Record the mode */
for (i = 0; i < ATA_MAX_DEVICES; i++)
ap->device[i].pio_mode = XFER_PIO_0;
ap->link.device[i].pio_mode = XFER_PIO_0;
/* read IDENTIFY page and configure devices. We have to do the identify
specific sequence bass-ackwards so that PDIAG- is released by
the slave device */
for (i = ATA_MAX_DEVICES - 1; i >= 0; i--) {
dev = &ap->device[i];
dev = &ap->link.device[i];
if (tries[i])
dev->class = classes[i];
@ -2162,13 +2164,13 @@ int ata_bus_probe(struct ata_port *ap)
this in the normal order so that the user doesn't get confused */
for(i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
dev = &ap->link.device[i];
if (!ata_dev_enabled(dev))
continue;
ap->eh_context.i.flags |= ATA_EHI_PRINTINFO;
ap->link.eh_context.i.flags |= ATA_EHI_PRINTINFO;
rc = ata_dev_configure(dev);
ap->eh_context.i.flags &= ~ATA_EHI_PRINTINFO;
ap->link.eh_context.i.flags &= ~ATA_EHI_PRINTINFO;
if (rc)
goto fail;
}
@ -2179,7 +2181,7 @@ int ata_bus_probe(struct ata_port *ap)
goto fail;
for (i = 0; i < ATA_MAX_DEVICES; i++)
if (ata_dev_enabled(&ap->device[i]))
if (ata_dev_enabled(&ap->link.device[i]))
return 0;
/* no device present, disable port */
@ -2344,8 +2346,8 @@ void sata_phy_reset(struct ata_port *ap)
struct ata_device *ata_dev_pair(struct ata_device *adev)
{
struct ata_port *ap = adev->ap;
struct ata_device *pair = &ap->device[1 - adev->devno];
struct ata_link *link = adev->link;
struct ata_device *pair = &link->device[1 - adev->devno];
if (!ata_dev_enabled(pair))
return NULL;
return pair;
@ -2366,8 +2368,8 @@ struct ata_device *ata_dev_pair(struct ata_device *adev)
void ata_port_disable(struct ata_port *ap)
{
ap->device[0].class = ATA_DEV_NONE;
ap->device[1].class = ATA_DEV_NONE;
ap->link.device[0].class = ATA_DEV_NONE;
ap->link.device[1].class = ATA_DEV_NONE;
ap->flags |= ATA_FLAG_DISABLED;
}
@ -2400,9 +2402,9 @@ int sata_down_spd_limit(struct ata_port *ap)
if (rc == 0)
spd = (sstatus >> 4) & 0xf;
else
spd = ap->sata_spd;
spd = ap->link.sata_spd;
mask = ap->sata_spd_limit;
mask = ap->link.sata_spd_limit;
if (mask <= 1)
return -EINVAL;
@ -2422,7 +2424,7 @@ int sata_down_spd_limit(struct ata_port *ap)
if (!mask)
return -EINVAL;
ap->sata_spd_limit = mask;
ap->link.sata_spd_limit = mask;
ata_port_printk(ap, KERN_WARNING, "limiting SATA link speed to %s\n",
sata_spd_string(fls(mask)));
@ -2434,10 +2436,10 @@ static int __sata_set_spd_needed(struct ata_port *ap, u32 *scontrol)
{
u32 spd, limit;
if (ap->sata_spd_limit == UINT_MAX)
if (ap->link.sata_spd_limit == UINT_MAX)
limit = 0;
else
limit = fls(ap->sata_spd_limit);
limit = fls(ap->link.sata_spd_limit);
spd = (*scontrol >> 4) & 0xf;
*scontrol = (*scontrol & ~0xf0) | ((limit & 0xf) << 4);
@ -2450,7 +2452,7 @@ static int __sata_set_spd_needed(struct ata_port *ap, u32 *scontrol)
* @ap: Port in question
*
* Test whether the spd limit in SControl matches
* @ap->sata_spd_limit. This function is used to determine
* @ap->link.sata_spd_limit. This function is used to determine
* whether hardreset is necessary to apply SATA spd
* configuration.
*
@ -2749,7 +2751,7 @@ int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel)
static int ata_dev_set_mode(struct ata_device *dev)
{
struct ata_eh_context *ehc = &dev->ap->eh_context;
struct ata_eh_context *ehc = &dev->link->eh_context;
unsigned int err_mask;
int rc;
@ -2809,7 +2811,7 @@ int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
for (i = 0; i < ATA_MAX_DEVICES; i++) {
unsigned int pio_mask, dma_mask;
dev = &ap->device[i];
dev = &ap->link.device[i];
if (!ata_dev_enabled(dev))
continue;
@ -2830,7 +2832,7 @@ int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
/* step 2: always set host PIO timings */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
dev = &ap->link.device[i];
if (!ata_dev_enabled(dev))
continue;
@ -2848,7 +2850,7 @@ int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
/* step 3: set host DMA timings */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
dev = &ap->link.device[i];
if (!ata_dev_enabled(dev) || !dev->dma_mode)
continue;
@ -2861,7 +2863,7 @@ int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
/* step 4: update devices' xfer mode */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
dev = &ap->link.device[i];
/* don't update suspended devices' xfer mode */
if (!ata_dev_enabled(dev))
@ -3142,6 +3144,7 @@ static int ata_bus_softreset(struct ata_port *ap, unsigned int devmask,
void ata_bus_reset(struct ata_port *ap)
{
struct ata_device *device = ap->link.device;
struct ata_ioports *ioaddr = &ap->ioaddr;
unsigned int slave_possible = ap->flags & ATA_FLAG_SLAVE_POSS;
u8 err;
@ -3177,19 +3180,19 @@ void ata_bus_reset(struct ata_port *ap)
/*
* determine by signature whether we have ATA or ATAPI devices
*/
ap->device[0].class = ata_dev_try_classify(ap, 0, &err);
device[0].class = ata_dev_try_classify(ap, 0, &err);
if ((slave_possible) && (err != 0x81))
ap->device[1].class = ata_dev_try_classify(ap, 1, &err);
device[1].class = ata_dev_try_classify(ap, 1, &err);
/* is double-select really necessary? */
if (ap->device[1].class != ATA_DEV_NONE)
if (device[1].class != ATA_DEV_NONE)
ap->ops->dev_select(ap, 1);
if (ap->device[0].class != ATA_DEV_NONE)
if (device[0].class != ATA_DEV_NONE)
ap->ops->dev_select(ap, 0);
/* if no devices were detected, disable this port */
if ((ap->device[0].class == ATA_DEV_NONE) &&
(ap->device[1].class == ATA_DEV_NONE))
if ((device[0].class == ATA_DEV_NONE) &&
(device[1].class == ATA_DEV_NONE))
goto err_out;
if (ap->flags & (ATA_FLAG_SATA_RESET | ATA_FLAG_SRST)) {
@ -3331,7 +3334,7 @@ int sata_phy_resume(struct ata_port *ap, const unsigned long *params,
*/
int ata_std_prereset(struct ata_port *ap, unsigned long deadline)
{
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_context *ehc = &ap->link.eh_context;
const unsigned long *timing = sata_ehc_deb_timing(ehc);
int rc;
@ -3503,7 +3506,7 @@ int sata_port_hardreset(struct ata_port *ap, const unsigned long *timing,
int sata_std_hardreset(struct ata_port *ap, unsigned int *class,
unsigned long deadline)
{
const unsigned long *timing = sata_ehc_deb_timing(&ap->eh_context);
const unsigned long *timing = sata_ehc_deb_timing(&ap->link.eh_context);
int rc;
DPRINTK("ENTER\n");
@ -3652,7 +3655,7 @@ static int ata_dev_same_device(struct ata_device *dev, unsigned int new_class,
int ata_dev_reread_id(struct ata_device *dev, unsigned int readid_flags)
{
unsigned int class = dev->class;
u16 *id = (void *)dev->ap->sector_buf;
u16 *id = (void *)dev->link->ap->sector_buf;
int rc;
/* read ID data */
@ -3837,7 +3840,7 @@ static int ata_dma_blacklisted(const struct ata_device *dev)
* DMA blacklist those ATAPI devices with CDB-intr (and use PIO)
* if the LLDD handles only interrupts in the HSM_ST_LAST state.
*/
if ((dev->ap->flags & ATA_FLAG_PIO_POLLING) &&
if ((dev->link->ap->flags & ATA_FLAG_PIO_POLLING) &&
(dev->flags & ATA_DFLAG_CDB_INTR))
return 1;
return (dev->horkage & ATA_HORKAGE_NODMA) ? 1 : 0;
@ -3857,7 +3860,8 @@ static int ata_dma_blacklisted(const struct ata_device *dev)
*/
static void ata_dev_xfermask(struct ata_device *dev)
{
struct ata_port *ap = dev->ap;
struct ata_link *link = dev->link;
struct ata_port *ap = link->ap;
struct ata_host *host = ap->host;
unsigned long xfer_mask;
@ -4482,7 +4486,7 @@ void swap_buf_le16(u16 *buf, unsigned int buf_words)
void ata_data_xfer(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data)
{
struct ata_port *ap = adev->ap;
struct ata_port *ap = adev->link->ap;
unsigned int words = buflen >> 1;
/* Transfer multiple of 2 bytes */
@ -5188,7 +5192,7 @@ static struct ata_queued_cmd *ata_qc_new(struct ata_port *ap)
struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev)
{
struct ata_port *ap = dev->ap;
struct ata_port *ap = dev->link->ap;
struct ata_queued_cmd *qc;
qc = ata_qc_new(ap);
@ -5231,6 +5235,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
void __ata_qc_complete(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ata_link *link = qc->dev->link;
WARN_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
WARN_ON(!(qc->flags & ATA_QCFLAG_ACTIVE));
@ -5240,9 +5245,9 @@ void __ata_qc_complete(struct ata_queued_cmd *qc)
/* command should be marked inactive atomically with qc completion */
if (qc->tf.protocol == ATA_PROT_NCQ)
ap->sactive &= ~(1 << qc->tag);
link->sactive &= ~(1 << qc->tag);
else
ap->active_tag = ATA_TAG_POISON;
link->active_tag = ATA_TAG_POISON;
/* atapi: mark qc as inactive to prevent the interrupt handler
* from completing the command twice later, before the error handler
@ -5411,19 +5416,20 @@ static inline int ata_should_dma_map(struct ata_queued_cmd *qc)
void ata_qc_issue(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ata_link *link = qc->dev->link;
/* Make sure only one non-NCQ command is outstanding. The
* check is skipped for old EH because it reuses active qc to
* request ATAPI sense.
*/
WARN_ON(ap->ops->error_handler && ata_tag_valid(ap->active_tag));
WARN_ON(ap->ops->error_handler && ata_tag_valid(link->active_tag));
if (qc->tf.protocol == ATA_PROT_NCQ) {
WARN_ON(ap->sactive & (1 << qc->tag));
ap->sactive |= 1 << qc->tag;
WARN_ON(link->sactive & (1 << qc->tag));
link->sactive |= 1 << qc->tag;
} else {
WARN_ON(ap->sactive);
ap->active_tag = qc->tag;
WARN_ON(link->sactive);
link->active_tag = qc->tag;
}
qc->flags |= ATA_QCFLAG_ACTIVE;
@ -5606,7 +5612,7 @@ unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc)
inline unsigned int ata_host_intr (struct ata_port *ap,
struct ata_queued_cmd *qc)
{
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
u8 status, host_stat = 0;
VPRINTK("ata%u: protocol %d task_state %d\n",
@ -5721,7 +5727,7 @@ irqreturn_t ata_interrupt (int irq, void *dev_instance)
!(ap->flags & ATA_FLAG_DISABLED)) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)) &&
(qc->flags & ATA_QCFLAG_ACTIVE))
handled |= ata_host_intr(ap, qc);
@ -5921,8 +5927,8 @@ static int ata_host_request_pm(struct ata_host *host, pm_message_t mesg,
}
ap->pflags |= ATA_PFLAG_PM_PENDING;
ap->eh_info.action |= action;
ap->eh_info.flags |= ehi_flags;
ap->link.eh_info.action |= action;
ap->link.eh_info.flags |= ehi_flags;
ata_port_schedule_eh(ap);
@ -6026,12 +6032,13 @@ int ata_port_start(struct ata_port *ap)
*/
void ata_dev_init(struct ata_device *dev)
{
struct ata_port *ap = dev->ap;
struct ata_link *link = dev->link;
struct ata_port *ap = link->ap;
unsigned long flags;
/* SATA spd limit is bound to the first device */
ap->sata_spd_limit = ap->hw_sata_spd_limit;
ap->sata_spd = 0;
link->sata_spd_limit = link->hw_sata_spd_limit;
link->sata_spd = 0;
/* High bits of dev->flags are used to record warm plug
* requests which occur asynchronously. Synchronize using
@ -6080,8 +6087,8 @@ struct ata_port *ata_port_alloc(struct ata_host *host)
ap->host = host;
ap->dev = host->dev;
ap->hw_sata_spd_limit = UINT_MAX;
ap->active_tag = ATA_TAG_POISON;
ap->link.hw_sata_spd_limit = UINT_MAX;
ap->link.active_tag = ATA_TAG_POISON;
ap->last_ctl = 0xFF;
#if defined(ATA_VERBOSE_DEBUG)
@ -6104,9 +6111,11 @@ struct ata_port *ata_port_alloc(struct ata_host *host)
ap->cbl = ATA_CBL_NONE;
ap->link.ap = ap;
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
dev->ap = ap;
struct ata_device *dev = &ap->link.device[i];
dev->link = &ap->link;
dev->devno = i;
ata_dev_init(dev);
}
@ -6402,9 +6411,9 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
if (sata_scr_read(ap, SCR_CONTROL, &scontrol) == 0) {
int spd = (scontrol >> 4) & 0xf;
if (spd)
ap->hw_sata_spd_limit &= (1 << spd) - 1;
ap->link.hw_sata_spd_limit &= (1 << spd) - 1;
}
ap->sata_spd_limit = ap->hw_sata_spd_limit;
ap->link.sata_spd_limit = ap->link.hw_sata_spd_limit;
/* report the secondary IRQ for second channel legacy */
irq_line = host->irq;
@ -6436,7 +6445,7 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
/* probe */
if (ap->ops->error_handler) {
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
unsigned long flags;
ata_port_probe(ap);
@ -6560,7 +6569,7 @@ void ata_port_detach(struct ata_port *ap)
spin_lock_irqsave(ap->lock, flags);
for (i = 0; i < ATA_MAX_DEVICES; i++)
ata_dev_disable(&ap->device[i]);
ata_dev_disable(&ap->link.device[i]);
spin_unlock_irqrestore(ap->lock, flags);

100
drivers/ata/libata-eh.c
View file

@ -195,7 +195,7 @@ static int ata_ering_map(struct ata_ering *ering,
static unsigned int ata_eh_dev_action(struct ata_device *dev)
{
struct ata_eh_context *ehc = &dev->ap->eh_context;
struct ata_eh_context *ehc = &dev->link->eh_context;
return ehc->i.action | ehc->i.dev_action[dev->devno];
}
@ -261,7 +261,7 @@ enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd)
ret = EH_HANDLED;
spin_lock_irqsave(ap->lock, flags);
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc) {
WARN_ON(qc->scsicmd != cmd);
qc->flags |= ATA_QCFLAG_EH_SCHEDULED;
@ -371,9 +371,9 @@ void ata_scsi_error(struct Scsi_Host *host)
/* fetch & clear EH info */
spin_lock_irqsave(ap->lock, flags);
memset(&ap->eh_context, 0, sizeof(ap->eh_context));
ap->eh_context.i = ap->eh_info;
memset(&ap->eh_info, 0, sizeof(ap->eh_info));
memset(&ap->link.eh_context, 0, sizeof(ap->link.eh_context));
ap->link.eh_context.i = ap->link.eh_info;
memset(&ap->link.eh_info, 0, sizeof(ap->link.eh_info));
ap->pflags |= ATA_PFLAG_EH_IN_PROGRESS;
ap->pflags &= ~ATA_PFLAG_EH_PENDING;
@ -409,7 +409,7 @@ void ata_scsi_error(struct Scsi_Host *host)
}
/* this run is complete, make sure EH info is clear */
memset(&ap->eh_info, 0, sizeof(ap->eh_info));
memset(&ap->link.eh_info, 0, sizeof(ap->link.eh_info));
/* Clear host_eh_scheduled while holding ap->lock such
* that if exception occurs after this point but
@ -420,7 +420,7 @@ void ata_scsi_error(struct Scsi_Host *host)
spin_unlock_irqrestore(ap->lock, flags);
} else {
WARN_ON(ata_qc_from_tag(ap, ap->active_tag) == NULL);
WARN_ON(ata_qc_from_tag(ap, ap->link.active_tag) == NULL);
ap->ops->eng_timeout(ap);
}
@ -575,7 +575,7 @@ void ata_eng_timeout(struct ata_port *ap)
{
DPRINTK("ENTER\n");
ata_qc_timeout(ata_qc_from_tag(ap, ap->active_tag));
ata_qc_timeout(ata_qc_from_tag(ap, ap->link.active_tag));
DPRINTK("EXIT\n");
}
@ -922,7 +922,7 @@ void ata_eh_qc_retry(struct ata_queued_cmd *qc)
*/
static void ata_eh_detach_dev(struct ata_device *dev)
{
struct ata_port *ap = dev->ap;
struct ata_port *ap = dev->link->ap;
unsigned long flags;
ata_dev_disable(dev);
@ -937,8 +937,8 @@ static void ata_eh_detach_dev(struct ata_device *dev)
}
/* clear per-dev EH actions */
ata_eh_clear_action(dev, &ap->eh_info, ATA_EH_PERDEV_MASK);
ata_eh_clear_action(dev, &ap->eh_context.i, ATA_EH_PERDEV_MASK);
ata_eh_clear_action(dev, &dev->link->eh_info, ATA_EH_PERDEV_MASK);
ata_eh_clear_action(dev, &dev->link->eh_context.i, ATA_EH_PERDEV_MASK);
spin_unlock_irqrestore(ap->lock, flags);
}
@ -950,8 +950,8 @@ static void ata_eh_detach_dev(struct ata_device *dev)
* @action: action about to be performed
*
* Called just before performing EH actions to clear related bits
* in @ap->eh_info such that eh actions are not unnecessarily
* repeated.
* in @ap->link.eh_info such that eh actions are not
* unnecessarily repeated.
*
* LOCKING:
* None.
@ -960,8 +960,8 @@ static void ata_eh_about_to_do(struct ata_port *ap, struct ata_device *dev,
unsigned int action)
{
unsigned long flags;
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_info *ehi = &ap->link.eh_info;
struct ata_eh_context *ehc = &ap->link.eh_context;
spin_lock_irqsave(ap->lock, flags);
@ -993,7 +993,7 @@ static void ata_eh_about_to_do(struct ata_port *ap, struct ata_device *dev,
* @action: action just completed
*
* Called right after performing EH actions to clear related bits
* in @ap->eh_context.
* in @ap->link.eh_context.
*
* LOCKING:
* None.
@ -1001,13 +1001,15 @@ static void ata_eh_about_to_do(struct ata_port *ap, struct ata_device *dev,
static void ata_eh_done(struct ata_port *ap, struct ata_device *dev,
unsigned int action)
{
struct ata_eh_context *ehc = &ap->link.eh_context;
/* if reset is complete, clear all reset actions & reset modifier */
if (action & ATA_EH_RESET_MASK) {
action |= ATA_EH_RESET_MASK;
ap->eh_context.i.flags &= ~ATA_EHI_RESET_MODIFIER_MASK;
ehc->i.flags &= ~ATA_EHI_RESET_MODIFIER_MASK;
}
ata_eh_clear_action(dev, &ap->eh_context.i, action);
ata_eh_clear_action(dev, &ehc->i, action);
}
/**
@ -1101,7 +1103,7 @@ static unsigned int ata_read_log_page(struct ata_device *dev,
static int ata_eh_read_log_10h(struct ata_device *dev,
int *tag, struct ata_taskfile *tf)
{
u8 *buf = dev->ap->sector_buf;
u8 *buf = dev->link->ap->sector_buf;
unsigned int err_mask;
u8 csum;
int i;
@ -1155,7 +1157,7 @@ static unsigned int atapi_eh_request_sense(struct ata_queued_cmd *qc)
{
struct ata_device *dev = qc->dev;
unsigned char *sense_buf = qc->scsicmd->sense_buffer;
struct ata_port *ap = dev->ap;
struct ata_port *ap = dev->link->ap;
struct ata_taskfile tf;
u8 cdb[ATAPI_CDB_LEN];
@ -1206,7 +1208,7 @@ static unsigned int atapi_eh_request_sense(struct ata_queued_cmd *qc)
*/
static void ata_eh_analyze_serror(struct ata_port *ap)
{
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_context *ehc = &ap->link.eh_context;
u32 serror = ehc->i.serror;
unsigned int err_mask = 0, action = 0;
@ -1248,8 +1250,8 @@ static void ata_eh_analyze_serror(struct ata_port *ap)
*/
static void ata_eh_analyze_ncq_error(struct ata_port *ap)
{
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_device *dev = ap->device;
struct ata_eh_context *ehc = &ap->link.eh_context;
struct ata_device *dev = ap->link.device;
struct ata_queued_cmd *qc;
struct ata_taskfile tf;
int tag, rc;
@ -1259,7 +1261,7 @@ static void ata_eh_analyze_ncq_error(struct ata_port *ap)
return;
/* is it NCQ device error? */
if (!ap->sactive || !(ehc->i.err_mask & AC_ERR_DEV))
if (!ap->link.sactive || !(ehc->i.err_mask & AC_ERR_DEV))
return;
/* has LLDD analyzed already? */
@ -1281,7 +1283,7 @@ static void ata_eh_analyze_ncq_error(struct ata_port *ap)
return;
}
if (!(ap->sactive & (1 << tag))) {
if (!(ap->link.sactive & (1 << tag))) {
ata_port_printk(ap, KERN_ERR, "log page 10h reported "
"inactive tag %d\n", tag);
return;
@ -1497,7 +1499,7 @@ static unsigned int ata_eh_speed_down(struct ata_device *dev, int is_io,
/* speed down? */
if (verdict & ATA_EH_SPDN_SPEED_DOWN) {
/* speed down SATA link speed if possible */
if (sata_down_spd_limit(dev->ap) == 0) {
if (sata_down_spd_limit(dev->link->ap) == 0) {
action |= ATA_EH_HARDRESET;
goto done;
}
@ -1528,7 +1530,7 @@ static unsigned int ata_eh_speed_down(struct ata_device *dev, int is_io,
* SATA. Consider it only for PATA.
*/
if ((verdict & ATA_EH_SPDN_FALLBACK_TO_PIO) && (dev->spdn_cnt >= 2) &&
(dev->ap->cbl != ATA_CBL_SATA) &&
(dev->link->ap->cbl != ATA_CBL_SATA) &&
(dev->xfer_shift != ATA_SHIFT_PIO)) {
if (ata_down_xfermask_limit(dev, ATA_DNXFER_FORCE_PIO) == 0) {
dev->spdn_cnt = 0;
@ -1557,7 +1559,7 @@ static unsigned int ata_eh_speed_down(struct ata_device *dev, int is_io,
*/
static void ata_eh_autopsy(struct ata_port *ap)
{
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_context *ehc = &ap->link.eh_context;
unsigned int all_err_mask = 0;
int tag, is_io = 0;
u32 serror;
@ -1656,7 +1658,7 @@ static void ata_eh_autopsy(struct ata_port *ap)
*/
static void ata_eh_report(struct ata_port *ap)
{
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_context *ehc = &ap->link.eh_context;
const char *frozen, *desc;
int tag, nr_failed = 0;
@ -1685,15 +1687,15 @@ static void ata_eh_report(struct ata_port *ap)
if (ehc->i.dev) {
ata_dev_printk(ehc->i.dev, KERN_ERR, "exception Emask 0x%x "
"SAct 0x%x SErr 0x%x action 0x%x%s\n",
ehc->i.err_mask, ap->sactive, ehc->i.serror,
ehc->i.action, frozen);
ehc->i.err_mask, ap->link.sactive,
ehc->i.serror, ehc->i.action, frozen);
if (desc)
ata_dev_printk(ehc->i.dev, KERN_ERR, "%s\n", desc);
} else {
ata_port_printk(ap, KERN_ERR, "exception Emask 0x%x "
"SAct 0x%x SErr 0x%x action 0x%x%s\n",
ehc->i.err_mask, ap->sactive, ehc->i.serror,
ehc->i.action, frozen);
ehc->i.err_mask, ap->link.sactive,
ehc->i.serror, ehc->i.action, frozen);
if (desc)
ata_port_printk(ap, KERN_ERR, "%s\n", desc);
}
@ -1775,7 +1777,7 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
ata_prereset_fn_t prereset, ata_reset_fn_t softreset,
ata_reset_fn_t hardreset, ata_postreset_fn_t postreset)
{
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_context *ehc = &ap->link.eh_context;
unsigned int *classes = ehc->classes;
int verbose = !(ehc->i.flags & ATA_EHI_QUIET);
int try = 0;
@ -1804,7 +1806,7 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
if (rc == -ENOENT) {
ata_port_printk(ap, KERN_DEBUG,
"port disabled. ignoring.\n");
ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
ehc->i.action &= ~ATA_EH_RESET_MASK;
for (i = 0; i < ATA_MAX_DEVICES; i++)
classes[i] = ATA_DEV_NONE;
@ -1907,11 +1909,11 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
* controller state is undefined. Record the mode.
*/
for (i = 0; i < ATA_MAX_DEVICES; i++)
ap->device[i].pio_mode = XFER_PIO_0;
ap->link.device[i].pio_mode = XFER_PIO_0;
/* record current link speed */
if (sata_scr_read(ap, SCR_STATUS, &sstatus) == 0)
ap->sata_spd = (sstatus >> 4) & 0xf;
ap->link.sata_spd = (sstatus >> 4) & 0xf;
if (postreset)
postreset(ap, classes);
@ -1929,7 +1931,7 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
static int ata_eh_revalidate_and_attach(struct ata_port *ap,
struct ata_device **r_failed_dev)
{
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_context *ehc = &ap->link.eh_context;
struct ata_device *dev;
unsigned int new_mask = 0;
unsigned long flags;
@ -1944,7 +1946,7 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap,
for (i = ATA_MAX_DEVICES - 1; i >= 0; i--) {
unsigned int action, readid_flags = 0;
dev = &ap->device[i];
dev = &ap->link.device[i];
action = ata_eh_dev_action(dev);
if (ehc->i.flags & ATA_EHI_DID_RESET)
@ -2004,7 +2006,7 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap,
* device detection messages backwards.
*/
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
dev = &ap->link.device[i];
if (!(new_mask & (1 << i)))
continue;
@ -2036,7 +2038,7 @@ static int ata_port_nr_enabled(struct ata_port *ap)
int i, cnt = 0;
for (i = 0; i < ATA_MAX_DEVICES; i++)
if (ata_dev_enabled(&ap->device[i]))
if (ata_dev_enabled(&ap->link.device[i]))
cnt++;
return cnt;
}
@ -2046,14 +2048,14 @@ static int ata_port_nr_vacant(struct ata_port *ap)
int i, cnt = 0;
for (i = 0; i < ATA_MAX_DEVICES; i++)
if (ap->device[i].class == ATA_DEV_UNKNOWN)
if (ap->link.device[i].class == ATA_DEV_UNKNOWN)
cnt++;
return cnt;
}
static int ata_eh_skip_recovery(struct ata_port *ap)
{
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_context *ehc = &ap->link.eh_context;
int i;
/* thaw frozen port, resume link and recover failed devices */
@ -2063,7 +2065,7 @@ static int ata_eh_skip_recovery(struct ata_port *ap)
/* skip if class codes for all vacant slots are ATA_DEV_NONE */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
struct ata_device *dev = &ap->link.device[i];
if (dev->class == ATA_DEV_UNKNOWN &&
ehc->classes[dev->devno] != ATA_DEV_NONE)
@ -2075,8 +2077,8 @@ static int ata_eh_skip_recovery(struct ata_port *ap)
static void ata_eh_handle_dev_fail(struct ata_device *dev, int err)
{
struct ata_port *ap = dev->ap;
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_port *ap = dev->link->ap;
struct ata_eh_context *ehc = &dev->link->eh_context;
ehc->tries[dev->devno]--;
@ -2149,7 +2151,7 @@ static int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
ata_postreset_fn_t postreset)
{
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_context *ehc = &ap->link.eh_context;
struct ata_device *dev;
int i, rc;
@ -2157,7 +2159,7 @@ static int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
/* prep for recovery */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
dev = &ap->link.device[i];
ehc->tries[dev->devno] = ATA_EH_DEV_TRIES;
@ -2240,7 +2242,7 @@ static int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
out:
if (rc) {
for (i = 0; i < ATA_MAX_DEVICES; i++)
ata_dev_disable(&ap->device[i]);
ata_dev_disable(&ap->link.device[i]);
}
DPRINTK("EXIT, rc=%d\n", rc);

41
drivers/ata/libata-scsi.c
View file

@ -1368,14 +1368,14 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
case ATA_CMD_SET_FEATURES:
if ((qc->tf.feature == SETFEATURES_WC_ON) ||
(qc->tf.feature == SETFEATURES_WC_OFF)) {
ap->eh_info.action |= ATA_EH_REVALIDATE;
ap->link.eh_info.action |= ATA_EH_REVALIDATE;
ata_port_schedule_eh(ap);
}
break;
case ATA_CMD_INIT_DEV_PARAMS: /* CHS translation changed */
case ATA_CMD_SET_MULTI: /* multi_count changed */
ap->eh_info.action |= ATA_EH_REVALIDATE;
ap->link.eh_info.action |= ATA_EH_REVALIDATE;
ata_port_schedule_eh(ap);
break;
}
@ -1439,14 +1439,14 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
*/
static int ata_scmd_need_defer(struct ata_device *dev, int is_io)
{
struct ata_port *ap = dev->ap;
struct ata_link *link = dev->link;
int is_ncq = is_io && ata_ncq_enabled(dev);
if (is_ncq) {
if (!ata_tag_valid(ap->active_tag))
if (!ata_tag_valid(link->active_tag))
return 0;
} else {
if (!ata_tag_valid(ap->active_tag) && !ap->sactive)
if (!ata_tag_valid(link->active_tag) && !link->sactive)
return 0;
}
return 1;
@ -2426,7 +2426,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
static struct ata_device * ata_find_dev(struct ata_port *ap, int id)
{
if (likely(id < ATA_MAX_DEVICES))
return &ap->device[id];
return &ap->link.device[id];
return NULL;
}
@ -2458,7 +2458,7 @@ static int ata_scsi_dev_enabled(struct ata_device *dev)
if (unlikely(!ata_dev_enabled(dev)))
return 0;
if (!atapi_enabled || (dev->ap->flags & ATA_FLAG_NO_ATAPI)) {
if (!atapi_enabled || (dev->link->ap->flags & ATA_FLAG_NO_ATAPI)) {
if (unlikely(dev->class == ATA_DEV_ATAPI)) {
ata_dev_printk(dev, KERN_WARNING,
"WARNING: ATAPI is %s, device ignored.\n",
@ -2961,7 +2961,7 @@ void ata_scsi_scan_host(struct ata_port *ap, int sync)
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct scsi_device *sdev;
dev = &ap->device[i];
dev = &ap->link.device[i];
if (!ata_dev_enabled(dev) || dev->sdev)
continue;
@ -2978,7 +2978,7 @@ void ata_scsi_scan_host(struct ata_port *ap, int sync)
* whether all devices are attached.
*/
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
dev = &ap->link.device[i];
if (ata_dev_enabled(dev) && !dev->sdev)
break;
}
@ -3049,7 +3049,7 @@ int ata_scsi_offline_dev(struct ata_device *dev)
*/
static void ata_scsi_remove_dev(struct ata_device *dev)
{
struct ata_port *ap = dev->ap;
struct ata_port *ap = dev->link->ap;
struct scsi_device *sdev;
unsigned long flags;
@ -3123,7 +3123,7 @@ void ata_scsi_hotplug(struct work_struct *work)
/* unplug detached devices */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
struct ata_device *dev = &ap->link.device[i];
unsigned long flags;
if (!(dev->flags & ATA_DFLAG_DETACHED))
@ -3162,6 +3162,7 @@ static int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel,
unsigned int id, unsigned int lun)
{
struct ata_port *ap = ata_shost_to_port(shost);
struct ata_eh_info *ehi = &ap->link.eh_info;
unsigned long flags;
int rc = 0;
@ -3175,15 +3176,15 @@ static int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel,
spin_lock_irqsave(ap->lock, flags);
if (id == SCAN_WILD_CARD) {
ap->eh_info.probe_mask |= (1 << ATA_MAX_DEVICES) - 1;
ap->eh_info.action |= ATA_EH_SOFTRESET;
ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1;
ehi->action |= ATA_EH_SOFTRESET;
} else {
struct ata_device *dev = ata_find_dev(ap, id);
if (dev) {
ap->eh_info.probe_mask |= 1 << dev->devno;
ap->eh_info.action |= ATA_EH_SOFTRESET;
ap->eh_info.flags |= ATA_EHI_RESUME_LINK;
ehi->probe_mask |= 1 << dev->devno;
ehi->action |= ATA_EH_SOFTRESET;
ehi->flags |= ATA_EHI_RESUME_LINK;
} else
rc = -EINVAL;
}
@ -3220,7 +3221,7 @@ void ata_scsi_dev_rescan(struct work_struct *work)
spin_lock_irqsave(ap->lock, flags);
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
struct ata_device *dev = &ap->link.device[i];
struct scsi_device *sdev = dev->sdev;
if (!ata_dev_enabled(dev) || !sdev)
@ -3359,7 +3360,7 @@ EXPORT_SYMBOL_GPL(ata_sas_port_destroy);
int ata_sas_slave_configure(struct scsi_device *sdev, struct ata_port *ap)
{
ata_scsi_sdev_config(sdev);
ata_scsi_dev_config(sdev, ap->device);
ata_scsi_dev_config(sdev, ap->link.device);
return 0;
}
EXPORT_SYMBOL_GPL(ata_sas_slave_configure);
@ -3382,8 +3383,8 @@ int ata_sas_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *),
ata_scsi_dump_cdb(ap, cmd);
if (likely(ata_scsi_dev_enabled(ap->device)))
rc = __ata_scsi_queuecmd(cmd, done, ap->device);
if (likely(ata_scsi_dev_enabled(ap->link.device)))
rc = __ata_scsi_queuecmd(cmd, done, ap->link.device);
else {
cmd->result = (DID_BAD_TARGET << 16);
done(cmd);

4
drivers/ata/libata-sff.c
View file

@ -445,7 +445,7 @@ void ata_bmdma_drive_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
unsigned long flags;
int thaw = 0;
qc = __ata_qc_from_tag(ap, ap->active_tag);
qc = __ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && !(qc->flags & ATA_QCFLAG_FAILED))
qc = NULL;
@ -909,7 +909,7 @@ unsigned long ata_pci_default_filter(struct ata_device *adev, unsigned long xfer
/* Filter out DMA modes if the device has been configured by
the BIOS as PIO only */
if (adev->ap->ioaddr.bmdma_addr == 0)
if (adev->link->ap->ioaddr.bmdma_addr == 0)
xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
return xfer_mask;
}

4
drivers/ata/pata_it821x.c
View file

@ -391,7 +391,7 @@ static void it821x_passthru_dev_select(struct ata_port *ap,
{
struct it821x_dev *itdev = ap->private_data;
if (itdev && device != itdev->last_device) {
struct ata_device *adev = &ap->device[device];
struct ata_device *adev = &ap->link.device[device];
it821x_program(ap, adev, itdev->pio[adev->devno]);
itdev->last_device = device;
}
@ -464,7 +464,7 @@ static int it821x_smart_set_mode(struct ata_port *ap, struct ata_device **unused
int i;
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
struct ata_device *dev = &ap->link.device[i];
if (ata_dev_enabled(dev)) {
/* We don't really care */
dev->pio_mode = XFER_PIO_0;

4
drivers/ata/pata_ixp4xx_cf.c
View file

@ -31,7 +31,7 @@ static int ixp4xx_set_mode(struct ata_port *ap, struct ata_device **error)
int i;
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
struct ata_device *dev = &ap->link.device[i];
if (ata_dev_enabled(dev)) {
ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
dev->pio_mode = XFER_PIO_0;
@ -49,7 +49,7 @@ static void ixp4xx_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
unsigned int i;
unsigned int words = buflen >> 1;
u16 *buf16 = (u16 *) buf;
struct ata_port *ap = adev->ap;
struct ata_port *ap = adev->link->ap;
void __iomem *mmio = ap->ioaddr.data_addr;
struct ixp4xx_pata_data *data = ap->host->dev->platform_data;

4
drivers/ata/pata_legacy.c
View file

@ -112,7 +112,7 @@ static int legacy_set_mode(struct ata_port *ap, struct ata_device **unused)
int i;
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
struct ata_device *dev = &ap->link.device[i];
if (ata_dev_enabled(dev)) {
ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
dev->pio_mode = XFER_PIO_0;
@ -256,7 +256,7 @@ static void pdc20230_set_piomode(struct ata_port *ap, struct ata_device *adev)
static void pdc_data_xfer_vlb(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data)
{
struct ata_port *ap = adev->ap;
struct ata_port *ap = adev->link->ap;
int slop = buflen & 3;
unsigned long flags;

4
drivers/ata/pata_optidma.c
View file

@ -340,8 +340,8 @@ static int optidma_set_mode(struct ata_port *ap, struct ata_device **r_failed)
pci_read_config_byte(pdev, 0x43, &r);
r &= (0x0F << nybble);
r |= (optidma_make_bits43(&ap->device[0]) +
(optidma_make_bits43(&ap->device[0]) << 2)) << nybble;
r |= (optidma_make_bits43(&ap->link.device[0]) +
(optidma_make_bits43(&ap->link.device[0]) << 2)) << nybble;
pci_write_config_byte(pdev, 0x43, r);
}
return rc;

4
drivers/ata/pata_pcmcia.c
View file

@ -67,8 +67,8 @@ struct ata_pcmcia_info {
static int pcmcia_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
{
struct ata_device *master = &ap->device[0];
struct ata_device *slave = &ap->device[1];
struct ata_device *master = &ap->link.device[0];
struct ata_device *slave = &ap->link.device[1];
if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
return ata_do_set_mode(ap, r_failed_dev);

2
drivers/ata/pata_pdc2027x.c
View file

@ -486,7 +486,7 @@ static int pdc2027x_set_mode(struct ata_port *ap, struct ata_device **r_failed)
return i;
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
struct ata_device *dev = &ap->link.device[i];
if (ata_dev_enabled(dev)) {

2
drivers/ata/pata_platform.c
View file

@ -35,7 +35,7 @@ static int pata_platform_set_mode(struct ata_port *ap, struct ata_device **unuse
int i;
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
struct ata_device *dev = &ap->link.device[i];
if (ata_dev_enabled(dev)) {
/* We don't really care */

2
drivers/ata/pata_qdi.c
View file

@ -126,7 +126,7 @@ static unsigned int qdi_qc_issue_prot(struct ata_queued_cmd *qc)
static void qdi_data_xfer(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data)
{
struct ata_port *ap = adev->ap;
struct ata_port *ap = adev->link->ap;
int slop = buflen & 3;
if (ata_id_has_dword_io(adev->id)) {

2
drivers/ata/pata_rz1000.c
View file

@ -39,7 +39,7 @@ static int rz1000_set_mode(struct ata_port *ap, struct ata_device **unused)
int i;
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
struct ata_device *dev = &ap->link.device[i];
if (ata_dev_enabled(dev)) {
/* We don't really care */
dev->pio_mode = XFER_PIO_0;

2
drivers/ata/pata_scc.c
View file

@ -785,7 +785,7 @@ static u8 scc_bmdma_status (struct ata_port *ap)
static void scc_data_xfer (struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data)
{
struct ata_port *ap = adev->ap;
struct ata_port *ap = adev->link->ap;
unsigned int words = buflen >> 1;
unsigned int i;
u16 *buf16 = (u16 *) buf;

2
drivers/ata/pata_sis.c
View file

@ -84,7 +84,7 @@ static int sis_short_ata40(struct pci_dev *dev)
static int sis_old_port_base(struct ata_device *adev)
{
return 0x40 + (4 * adev->ap->port_no) + (2 * adev->devno);
return 0x40 + (4 * adev->link->ap->port_no) + (2 * adev->devno);
}
/**

2
drivers/ata/pata_winbond.c
View file

@ -94,7 +94,7 @@ static void winbond_set_piomode(struct ata_port *ap, struct ata_device *adev)
static void winbond_data_xfer(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data)
{
struct ata_port *ap = adev->ap;
struct ata_port *ap = adev->link->ap;
int slop = buflen & 3;
if (ata_id_has_dword_io(adev->id)) {

9
drivers/ata/pdc_adma.c
View file

@ -485,7 +485,7 @@ static inline unsigned int adma_intr_pkt(struct ata_host *host)
pp = ap->private_data;
if (!pp || pp->state != adma_state_pkt)
continue;
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) {
if (status & aPERR)
qc->err_mask |= AC_ERR_HOST_BUS;
@ -500,7 +500,7 @@ static inline unsigned int adma_intr_pkt(struct ata_host *host)
if (!qc->err_mask)
ata_qc_complete(qc);
else {
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
ata_ehi_clear_desc(ehi);
ata_ehi_push_desc(ehi,
"ADMA-status 0x%02X", status);
@ -529,7 +529,7 @@ static inline unsigned int adma_intr_mmio(struct ata_host *host)
struct adma_port_priv *pp = ap->private_data;
if (!pp || pp->state != adma_state_mmio)
continue;
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) {
/* check main status, clearing INTRQ */
@ -545,7 +545,8 @@ static inline unsigned int adma_intr_mmio(struct ata_host *host)
if (!qc->err_mask)
ata_qc_complete(qc);
else {
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi =
&ap->link.eh_info;
ata_ehi_clear_desc(ehi);
ata_ehi_push_desc(ehi,
"status 0x%02X", status);

7
drivers/ata/sata_inic162x.c
View file

@ -285,7 +285,7 @@ static void inic_irq_clear(struct ata_port *ap)
static void inic_host_intr(struct ata_port *ap)
{
void __iomem *port_base = inic_port_base(ap);
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
u8 irq_stat;
/* fetch and clear irq */
@ -293,7 +293,8 @@ static void inic_host_intr(struct ata_port *ap)
writeb(irq_stat, port_base + PORT_IRQ_STAT);
if (likely(!(irq_stat & PIRQ_ERR))) {
struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag);
struct ata_queued_cmd *qc =
ata_qc_from_tag(ap, ap->link.active_tag);
if (unlikely(!qc || (qc->tf.flags & ATA_TFLAG_POLLING))) {
ata_chk_status(ap); /* clear ATA interrupt */
@ -421,7 +422,7 @@ static int inic_hardreset(struct ata_port *ap, unsigned int *class,
{
void __iomem *port_base = inic_port_base(ap);
void __iomem *idma_ctl = port_base + PORT_IDMA_CTL;
const unsigned long *timing = sata_ehc_deb_timing(&ap->eh_context);
const unsigned long *timing = sata_ehc_deb_timing(&ap->link.eh_context);
u16 val;
int rc;

14
drivers/ata/sata_mv.c
View file

@ -1415,7 +1415,7 @@ static void mv_err_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
struct mv_host_priv *hpriv = ap->host->private_data;
unsigned int edma_enabled = (pp->pp_flags & MV_PP_FLAG_EDMA_EN);
unsigned int action = 0, err_mask = 0;
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
ata_ehi_clear_desc(ehi);
@ -1508,7 +1508,7 @@ static void mv_intr_pio(struct ata_port *ap)
return;
/* get active ATA command */
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (unlikely(!qc)) /* no active tag */
return;
if (qc->tf.flags & ATA_TFLAG_POLLING) /* polling; we don't own qc */
@ -1543,7 +1543,7 @@ static void mv_intr_edma(struct ata_port *ap)
/* 50xx: get active ATA command */
if (IS_GEN_I(hpriv))
tag = ap->active_tag;
tag = ap->link.active_tag;
/* Gen II/IIE: get active ATA command via tag, to enable
* support for queueing. this works transparently for
@ -1646,7 +1646,7 @@ static void mv_host_intr(struct ata_host *host, u32 relevant, unsigned int hc)
if (unlikely(have_err_bits)) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (qc->tf.flags & ATA_TFLAG_POLLING))
continue;
@ -1688,14 +1688,14 @@ static void mv_pci_error(struct ata_host *host, void __iomem *mmio)
for (i = 0; i < host->n_ports; i++) {
ap = host->ports[i];
if (!ata_port_offline(ap)) {
ehi = &ap->eh_info;
ehi = &ap->link.eh_info;
ata_ehi_clear_desc(ehi);
if (!printed++)
ata_ehi_push_desc(ehi,
"PCI err cause 0x%08x", err_cause);
err_mask = AC_ERR_HOST_BUS;
ehi->action = ATA_EH_HARDRESET;
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc)
qc->err_mask |= err_mask;
else
@ -2269,7 +2269,7 @@ comreset_retry:
static int mv_prereset(struct ata_port *ap, unsigned long deadline)
{
struct mv_port_priv *pp = ap->private_data;
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_context *ehc = &ap->link.eh_context;
int rc;
rc = mv_stop_dma(ap);

26
drivers/ata/sata_nv.c
View file

@ -594,7 +594,7 @@ static int nv_adma_slave_config(struct scsi_device *sdev)
/* Not a proper libata device, ignore */
return rc;
if (ap->device[sdev->id].class == ATA_DEV_ATAPI) {
if (ap->link.device[sdev->id].class == ATA_DEV_ATAPI) {
/*
* NVIDIA reports that ADMA mode does not support ATAPI commands.
* Therefore ATAPI commands are sent through the legacy interface.
@ -711,7 +711,7 @@ static int nv_adma_check_cpb(struct ata_port *ap, int cpb_num, int force_err)
flags & (NV_CPB_RESP_ATA_ERR |
NV_CPB_RESP_CMD_ERR |
NV_CPB_RESP_CPB_ERR)))) {
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
int freeze = 0;
ata_ehi_clear_desc(ehi);
@ -747,7 +747,7 @@ static int nv_adma_check_cpb(struct ata_port *ap, int cpb_num, int force_err)
DPRINTK("Completing qc from tag %d\n",cpb_num);
ata_qc_complete(qc);
} else {
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
/* Notifier bits set without a command may indicate the drive
is misbehaving. Raise host state machine violation on this
condition. */
@ -764,7 +764,7 @@ static int nv_adma_check_cpb(struct ata_port *ap, int cpb_num, int force_err)
static int nv_host_intr(struct ata_port *ap, u8 irq_stat)
{
struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag);
struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag);
/* freeze if hotplugged */
if (unlikely(irq_stat & (NV_INT_ADDED | NV_INT_REMOVED))) {
@ -817,7 +817,7 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)
if (pp->flags & NV_ADMA_PORT_REGISTER_MODE) {
u8 irq_stat = readb(host->iomap[NV_MMIO_BAR] + NV_INT_STATUS_CK804)
>> (NV_INT_PORT_SHIFT * i);
if(ata_tag_valid(ap->active_tag))
if(ata_tag_valid(ap->link.active_tag))
/** NV_INT_DEV indication seems unreliable at times
at least in ADMA mode. Force it on always when a
command is active, to prevent losing interrupts. */
@ -852,7 +852,7 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)
NV_ADMA_STAT_HOTUNPLUG |
NV_ADMA_STAT_TIMEOUT |
NV_ADMA_STAT_SERROR))) {
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
ata_ehi_clear_desc(ehi);
__ata_ehi_push_desc(ehi, "ADMA status 0x%08x: ", status );
@ -879,10 +879,10 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)
u32 check_commands;
int pos, error = 0;
if(ata_tag_valid(ap->active_tag))
check_commands = 1 << ap->active_tag;
if(ata_tag_valid(ap->link.active_tag))
check_commands = 1 << ap->link.active_tag;
else
check_commands = ap->sactive;
check_commands = ap->link.sactive;
/** Check CPBs for completed commands */
while ((pos = ffs(check_commands)) && !error) {
@ -1333,7 +1333,7 @@ static irqreturn_t nv_generic_interrupt(int irq, void *dev_instance)
!(ap->flags & ATA_FLAG_DISABLED)) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)))
handled += ata_host_intr(ap, qc);
else
@ -1485,7 +1485,7 @@ static void nv_adma_error_handler(struct ata_port *ap)
int i;
u16 tmp;
if(ata_tag_valid(ap->active_tag) || ap->sactive) {
if(ata_tag_valid(ap->link.active_tag) || ap->link.sactive) {
u32 notifier = readl(mmio + NV_ADMA_NOTIFIER);
u32 notifier_error = readl(mmio + NV_ADMA_NOTIFIER_ERROR);
u32 gen_ctl = readl(pp->gen_block + NV_ADMA_GEN_CTL);
@ -1501,8 +1501,8 @@ static void nv_adma_error_handler(struct ata_port *ap)
for( i=0;i<NV_ADMA_MAX_CPBS;i++) {
struct nv_adma_cpb *cpb = &pp->cpb[i];
if( (ata_tag_valid(ap->active_tag) && i == ap->active_tag) ||
ap->sactive & (1 << i) )
if( (ata_tag_valid(ap->link.active_tag) && i == ap->link.active_tag) ||
ap->link.sactive & (1 << i) )
ata_port_printk(ap, KERN_ERR,
"CPB %d: ctl_flags 0x%x, resp_flags 0x%x\n",
i, cpb->ctl_flags, cpb->resp_flags);

6
drivers/ata/sata_promise.c
View file

@ -626,7 +626,7 @@ static void pdc_post_internal_cmd(struct ata_queued_cmd *qc)
static void pdc_error_intr(struct ata_port *ap, struct ata_queued_cmd *qc,
u32 port_status, u32 err_mask)
{
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
unsigned int ac_err_mask = 0;
ata_ehi_clear_desc(ehi);
@ -773,7 +773,7 @@ static irqreturn_t pdc_interrupt (int irq, void *dev_instance)
tmp = hotplug_status & (0x11 << ata_no);
if (tmp && ap &&
!(ap->flags & ATA_FLAG_DISABLED)) {
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
ata_ehi_clear_desc(ehi);
ata_ehi_hotplugged(ehi);
ata_ehi_push_desc(ehi, "hotplug_status %#x", tmp);
@ -788,7 +788,7 @@ static irqreturn_t pdc_interrupt (int irq, void *dev_instance)
!(ap->flags & ATA_FLAG_DISABLED)) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)))
handled += pdc_host_intr(ap, qc);
}

4
drivers/ata/sata_qstor.c
View file

@ -404,7 +404,7 @@ static inline unsigned int qs_intr_pkt(struct ata_host *host)
struct qs_port_priv *pp = ap->private_data;
if (!pp || pp->state != qs_state_pkt)
continue;
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) {
switch (sHST) {
case 0: /* successful CPB */
@ -437,7 +437,7 @@ static inline unsigned int qs_intr_mmio(struct ata_host *host)
struct qs_port_priv *pp = ap->private_data;
if (!pp || pp->state != qs_state_mmio)
continue;
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) {
/* check main status, clearing INTRQ */

14
drivers/ata/sata_sil.c
View file

@ -312,7 +312,7 @@ static int sil_set_mode (struct ata_port *ap, struct ata_device **r_failed)
return rc;
for (i = 0; i < 2; i++) {
dev = &ap->device[i];
dev = &ap->link.device[i];
if (!ata_dev_enabled(dev))
dev_mode[i] = 0; /* PIO0/1/2 */
else if (dev->flags & ATA_DFLAG_PIO)
@ -374,8 +374,8 @@ static int sil_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val)
static void sil_host_intr(struct ata_port *ap, u32 bmdma2)
{
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag);
struct ata_eh_info *ehi = &ap->link.eh_info;
struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag);
u8 status;
if (unlikely(bmdma2 & SIL_DMA_SATA_IRQ)) {
@ -394,8 +394,8 @@ static void sil_host_intr(struct ata_port *ap, u32 bmdma2)
* repeat probing needlessly.
*/
if (!(ap->pflags & ATA_PFLAG_FROZEN)) {
ata_ehi_hotplugged(&ap->eh_info);
ap->eh_info.serror |= serror;
ata_ehi_hotplugged(&ap->link.eh_info);
ap->link.eh_info.serror |= serror;
}
goto freeze;
@ -562,8 +562,8 @@ static void sil_thaw(struct ata_port *ap)
*/
static void sil_dev_config(struct ata_device *dev)
{
struct ata_port *ap = dev->ap;
int print_info = ap->eh_context.i.flags & ATA_EHI_PRINTINFO;
struct ata_port *ap = dev->link->ap;
int print_info = ap->link.eh_context.i.flags & ATA_EHI_PRINTINFO;
unsigned int n, quirks = 0;
unsigned char model_num[ATA_ID_PROD_LEN + 1];

14
drivers/ata/sata_sil24.c
View file

@ -456,7 +456,7 @@ static int sil24_tag(int tag)
static void sil24_dev_config(struct ata_device *dev)
{
void __iomem *port = dev->ap->ioaddr.cmd_addr;
void __iomem *port = dev->link->ap->ioaddr.cmd_addr;
if (dev->cdb_len == 16)
writel(PORT_CS_CDB16, port + PORT_CTRL_STAT);
@ -609,7 +609,7 @@ static int sil24_do_softreset(struct ata_port *ap, unsigned int *class,
if (time_after(deadline, jiffies))
timeout_msec = jiffies_to_msecs(deadline - jiffies);
ata_tf_init(ap->device, &tf); /* doesn't really matter */
ata_tf_init(ap->link.device, &tf); /* doesn't really matter */
rc = sil24_exec_polled_cmd(ap, pmp, &tf, 0, PRB_CTRL_SRST,
timeout_msec);
if (rc == -EBUSY) {
@ -804,7 +804,7 @@ static void sil24_error_intr(struct ata_port *ap)
{
void __iomem *port = ap->ioaddr.cmd_addr;
struct sil24_port_priv *pp = ap->private_data;
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
int freeze = 0;
u32 irq_stat;
@ -856,7 +856,7 @@ static void sil24_error_intr(struct ata_port *ap)
}
/* record error info */
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc) {
sil24_read_tf(ap, qc->tag, &pp->tf);
qc->err_mask |= err_mask;
@ -910,7 +910,7 @@ static inline void sil24_host_intr(struct ata_port *ap)
if (rc > 0)
return;
if (rc < 0) {
struct ata_eh_info *ehi = &ap->eh_info;
struct ata_eh_info *ehi = &ap->link.eh_info;
ehi->err_mask |= AC_ERR_HSM;
ehi->action |= ATA_EH_SOFTRESET;
ata_port_freeze(ap);
@ -921,7 +921,7 @@ static inline void sil24_host_intr(struct ata_port *ap)
if (!(ap->flags & SIL24_FLAG_PCIX_IRQ_WOC) && ata_ratelimit())
ata_port_printk(ap, KERN_INFO, "spurious interrupt "
"(slot_stat 0x%x active_tag %d sactive 0x%x)\n",
slot_stat, ap->active_tag, ap->sactive);
slot_stat, ap->link.active_tag, ap->link.sactive);
}
static irqreturn_t sil24_interrupt(int irq, void *dev_instance)
@ -963,7 +963,7 @@ static irqreturn_t sil24_interrupt(int irq, void *dev_instance)
static void sil24_error_handler(struct ata_port *ap)
{
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_context *ehc = &ap->link.eh_context;
if (sil24_init_port(ap)) {
ata_eh_freeze_port(ap);

4
drivers/ata/sata_sx4.c
View file

@ -854,7 +854,7 @@ static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance)
!(ap->flags & ATA_FLAG_DISABLED)) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)))
handled += pdc20621_host_intr(ap, qc, (i > 4),
mmio_base);
@ -881,7 +881,7 @@ static void pdc_eng_timeout(struct ata_port *ap)
spin_lock_irqsave(&host->lock, flags);
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
switch (qc->tf.protocol) {
case ATA_PROT_DMA:

2
drivers/ata/sata_via.c
View file

@ -296,7 +296,7 @@ static void svia_noop_freeze(struct ata_port *ap)
*/
static int vt6420_prereset(struct ata_port *ap, unsigned long deadline)
{
struct ata_eh_context *ehc = &ap->eh_context;
struct ata_eh_context *ehc = &ap->link.eh_context;
unsigned long timeout = jiffies + (HZ * 5);
u32 sstatus, scontrol;
int online;

2
drivers/ata/sata_vsc.c
View file

@ -240,7 +240,7 @@ static void vsc_port_intr(u8 port_status, struct ata_port *ap)
return;
}
qc = ata_qc_from_tag(ap, ap->active_tag);
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && likely(!(qc->tf.flags & ATA_TFLAG_POLLING)))
handled = ata_host_intr(ap, qc);

6
drivers/scsi/ipr.c
View file

@ -4988,14 +4988,14 @@ static void ipr_ata_phy_reset(struct ata_port *ap)
switch(res->cfgte.proto) {
case IPR_PROTO_SATA:
case IPR_PROTO_SAS_STP:
ap->device[0].class = ATA_DEV_ATA;
ap->link.device[0].class = ATA_DEV_ATA;
break;
case IPR_PROTO_SATA_ATAPI:
case IPR_PROTO_SAS_STP_ATAPI:
ap->device[0].class = ATA_DEV_ATAPI;
ap->link.device[0].class = ATA_DEV_ATAPI;
break;
default:
ap->device[0].class = ATA_DEV_UNKNOWN;
ap->link.device[0].class = ATA_DEV_UNKNOWN;
ap->ops->port_disable(ap);
break;
};

10
drivers/scsi/libsas/sas_ata.c
View file

@ -249,17 +249,17 @@ static void sas_ata_phy_reset(struct ata_port *ap)
switch (dev->sata_dev.command_set) {
case ATA_COMMAND_SET:
SAS_DPRINTK("%s: Found ATA device.\n", __FUNCTION__);
ap->device[0].class = ATA_DEV_ATA;
ap->link.device[0].class = ATA_DEV_ATA;
break;
case ATAPI_COMMAND_SET:
SAS_DPRINTK("%s: Found ATAPI device.\n", __FUNCTION__);
ap->device[0].class = ATA_DEV_ATAPI;
ap->link.device[0].class = ATA_DEV_ATAPI;
break;
default:
SAS_DPRINTK("%s: Unknown SATA command set: %d.\n",
__FUNCTION__,
dev->sata_dev.command_set);
ap->device[0].class = ATA_DEV_UNKNOWN;
ap->link.device[0].class = ATA_DEV_UNKNOWN;
break;
}
@ -317,7 +317,7 @@ static int sas_ata_scr_write(struct ata_port *ap, unsigned int sc_reg_in,
dev->sata_dev.serror = val;
break;
case SCR_ACTIVE:
dev->sata_dev.ap->sactive = val;
dev->sata_dev.ap->link.sactive = val;
break;
default:
return -EINVAL;
@ -342,7 +342,7 @@ static int sas_ata_scr_read(struct ata_port *ap, unsigned int sc_reg_in,
*val = dev->sata_dev.serror;
return 0;
case SCR_ACTIVE:
*val = dev->sata_dev.ap->sactive;
*val = dev->sata_dev.ap->link.sactive;
return 0;
default:
return -EINVAL;

40
include/linux/libata.h
View file

@ -436,7 +436,7 @@ struct ata_ering {
};
struct ata_device {
struct ata_port *ap;
struct ata_link *link;
unsigned int devno; /* 0 or 1 */
unsigned long flags; /* ATA_DFLAG_xxx */
unsigned int horkage; /* List of broken features */
@ -510,6 +510,24 @@ struct ata_acpi_gtm {
u32 flags;
} __packed;
struct ata_link {
struct ata_port *ap;
unsigned int active_tag; /* active tag on this link */
u32 sactive; /* active NCQ commands */
unsigned int hw_sata_spd_limit;
unsigned int sata_spd_limit;
unsigned int sata_spd; /* current SATA PHY speed */
/* record runtime error info, protected by host_set lock */
struct ata_eh_info eh_info;
/* EH context */
struct ata_eh_context eh_context;
struct ata_device device[ATA_MAX_DEVICES];
};
struct ata_port {
struct Scsi_Host *scsi_host; /* our co-allocated scsi host */
const struct ata_port_operations *ops;
@ -533,23 +551,12 @@ struct ata_port {
unsigned int mwdma_mask;
unsigned int udma_mask;
unsigned int cbl; /* cable type; ATA_CBL_xxx */
unsigned int hw_sata_spd_limit;
unsigned int sata_spd_limit; /* SATA PHY speed limit */
unsigned int sata_spd; /* current SATA PHY speed */
/* record runtime error info, protected by host lock */
struct ata_eh_info eh_info;
/* EH context owned by EH */
struct ata_eh_context eh_context;
struct ata_device device[ATA_MAX_DEVICES];
struct ata_queued_cmd qcmd[ATA_MAX_QUEUE];
unsigned long qc_allocated;
unsigned int qc_active;
unsigned int active_tag;
u32 sactive;
struct ata_link link; /* host default link */
struct ata_port_stats stats;
struct ata_host *host;
@ -912,8 +919,11 @@ extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
#define ata_port_printk(ap, lv, fmt, args...) \
printk(lv"ata%u: "fmt, (ap)->print_id , ##args)
#define ata_link_printk(link, lv, fmt, args...) \
printk(lv"ata%u: "fmt, (link)->ap->print_id , ##args)
#define ata_dev_printk(dev, lv, fmt, args...) \
printk(lv"ata%u.%02u: "fmt, (dev)->ap->print_id, (dev)->devno , ##args)
printk(lv"ata%u.%02u: "fmt, (dev)->link->ap->print_id, (dev)->devno , ##args)
/*
* ata_eh_info helpers
@ -1149,7 +1159,7 @@ static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf)
{
memset(tf, 0, sizeof(*tf));
tf->ctl = dev->ap->ctl;
tf->ctl = dev->link->ap->ctl;
if (dev->devno == 0)
tf->device = ATA_DEVICE_OBS;
else