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linux-sg2042
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libata-link: introduce ata_link 

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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