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-rw-r--r--drivers/ata/Kconfig3
-rw-r--r--drivers/ata/ahci.c8
-rw-r--r--drivers/ata/ata_generic.c5
-rw-r--r--drivers/ata/ata_piix.c21
-rw-r--r--drivers/ata/libata-acpi.c19
-rw-r--r--drivers/ata/libata-core.c269
-rw-r--r--drivers/ata/libata-eh.c116
-rw-r--r--drivers/ata/libata-pmp.c22
-rw-r--r--drivers/ata/libata-scsi.c22
-rw-r--r--drivers/ata/pata_bf54x.c1
-rw-r--r--drivers/ata/pata_hpt366.c12
-rw-r--r--drivers/ata/pata_it821x.c34
-rw-r--r--drivers/ata/pata_ixp4xx_cf.c14
-rw-r--r--drivers/ata/pata_legacy.c18
-rw-r--r--drivers/ata/pata_mpc52xx.c546
-rw-r--r--drivers/ata/pata_oldpiix.c1
-rw-r--r--drivers/ata/pata_pdc2027x.c29
-rw-r--r--drivers/ata/pata_platform.c14
-rw-r--r--drivers/ata/pata_radisys.c1
-rw-r--r--drivers/ata/pata_rz1000.c16
-rw-r--r--drivers/ata/pata_scc.c1
-rw-r--r--drivers/ata/pata_serverworks.c1
-rw-r--r--drivers/ata/pata_sis.c1
-rw-r--r--drivers/ata/sata_mv.c1
-rw-r--r--drivers/ata/sata_sil.c98
25 files changed, 935 insertions, 338 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 421b7c71e72..1a7be96d627 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -456,7 +456,8 @@ config PATA_MARVELL
config PATA_MPC52xx
tristate "Freescale MPC52xx SoC internal IDE"
- depends on PPC_MPC52xx
+ depends on PPC_MPC52xx && PPC_BESTCOMM
+ select PPC_BESTCOMM_ATA
help
This option enables support for integrated IDE controller
of the Freescale MPC52xx SoC.
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index a67b8e7c712..656448c7fef 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1119,14 +1119,14 @@ static void ahci_start_port(struct ata_port *ap)
/* turn on LEDs */
if (ap->flags & ATA_FLAG_EM) {
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
emp = &pp->em_priv[link->pmp];
ahci_transmit_led_message(ap, emp->led_state, 4);
}
}
if (ap->flags & ATA_FLAG_SW_ACTIVITY)
- ata_port_for_each_link(link, ap)
+ ata_for_each_link(link, ap, EDGE)
ahci_init_sw_activity(link);
}
@@ -1361,7 +1361,7 @@ static ssize_t ahci_led_show(struct ata_port *ap, char *buf)
struct ahci_em_priv *emp;
int rc = 0;
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
emp = &pp->em_priv[link->pmp];
rc += sprintf(buf, "%lx\n", emp->led_state);
}
@@ -1941,7 +1941,7 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
u32 serror;
/* determine active link */
- ata_port_for_each_link(link, ap)
+ ata_for_each_link(link, ap, EDGE)
if (ata_link_active(link))
break;
if (!link)
diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c
index 5c33767e66d..dc48a6398ab 100644
--- a/drivers/ata/ata_generic.c
+++ b/drivers/ata/ata_generic.c
@@ -57,10 +57,7 @@ static int generic_set_mode(struct ata_link *link, struct ata_device **unused)
if (pdev->vendor == PCI_VENDOR_ID_CENATEK)
dma_enabled = 0xFF;
- ata_link_for_each_dev(dev, link) {
- if (!ata_dev_enabled(dev))
- continue;
-
+ ata_for_each_dev(dev, link, ENABLED) {
/* We don't really care */
dev->pio_mode = XFER_PIO_0;
dev->dma_mode = XFER_MW_DMA_0;
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index c11936e13dd..5fdf1678d0c 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -1072,20 +1072,13 @@ static int piix_broken_suspend(void)
* matching is necessary because dmi_system_id.matches is
* limited to four entries.
*/
- if (dmi_get_system_info(DMI_SYS_VENDOR) &&
- dmi_get_system_info(DMI_PRODUCT_NAME) &&
- dmi_get_system_info(DMI_PRODUCT_VERSION) &&
- dmi_get_system_info(DMI_PRODUCT_SERIAL) &&
- dmi_get_system_info(DMI_BOARD_VENDOR) &&
- dmi_get_system_info(DMI_BOARD_NAME) &&
- dmi_get_system_info(DMI_BOARD_VERSION) &&
- !strcmp(dmi_get_system_info(DMI_SYS_VENDOR), "TOSHIBA") &&
- !strcmp(dmi_get_system_info(DMI_PRODUCT_NAME), "000000") &&
- !strcmp(dmi_get_system_info(DMI_PRODUCT_VERSION), "000000") &&
- !strcmp(dmi_get_system_info(DMI_PRODUCT_SERIAL), "000000") &&
- !strcmp(dmi_get_system_info(DMI_BOARD_VENDOR), "TOSHIBA") &&
- !strcmp(dmi_get_system_info(DMI_BOARD_NAME), "Portable PC") &&
- !strcmp(dmi_get_system_info(DMI_BOARD_VERSION), "Version A0"))
+ if (dmi_match(DMI_SYS_VENDOR, "TOSHIBA") &&
+ dmi_match(DMI_PRODUCT_NAME, "000000") &&
+ dmi_match(DMI_PRODUCT_VERSION, "000000") &&
+ dmi_match(DMI_PRODUCT_SERIAL, "000000") &&
+ dmi_match(DMI_BOARD_VENDOR, "TOSHIBA") &&
+ dmi_match(DMI_BOARD_NAME, "Portable PC") &&
+ dmi_match(DMI_BOARD_VERSION, "Version A0"))
return 1;
return 0;
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index c012307d0ba..ef02e488d46 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -89,7 +89,7 @@ void ata_acpi_associate_sata_port(struct ata_port *ap)
ap->link.device->acpi_handle = NULL;
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
acpi_integer adr = SATA_ADR(ap->port_no, link->pmp);
link->device->acpi_handle =
@@ -129,8 +129,8 @@ static void ata_acpi_detach_device(struct ata_port *ap, struct ata_device *dev)
struct ata_link *tlink;
struct ata_device *tdev;
- ata_port_for_each_link(tlink, ap)
- ata_link_for_each_dev(tdev, tlink)
+ ata_for_each_link(tlink, ap, EDGE)
+ ata_for_each_dev(tdev, tlink, ALL)
tdev->flags |= ATA_DFLAG_DETACH;
}
@@ -588,12 +588,9 @@ int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm)
{
struct ata_device *dev;
- ata_link_for_each_dev(dev, &ap->link) {
+ ata_for_each_dev(dev, &ap->link, ENABLED) {
unsigned long xfer_mask, udma_mask;
- if (!ata_dev_enabled(dev))
- continue;
-
xfer_mask = ata_acpi_gtm_xfermask(dev, gtm);
ata_unpack_xfermask(xfer_mask, NULL, NULL, &udma_mask);
@@ -893,7 +890,7 @@ void ata_acpi_on_resume(struct ata_port *ap)
* use values set by _STM. Cache _GTF result and
* schedule _GTF.
*/
- ata_link_for_each_dev(dev, &ap->link) {
+ ata_for_each_dev(dev, &ap->link, ALL) {
ata_acpi_clear_gtf(dev);
if (ata_dev_enabled(dev) &&
ata_dev_get_GTF(dev, NULL) >= 0)
@@ -904,7 +901,7 @@ void ata_acpi_on_resume(struct ata_port *ap)
* there's no reason to evaluate IDE _GTF early
* without _STM. Clear cache and schedule _GTF.
*/
- ata_link_for_each_dev(dev, &ap->link) {
+ ata_for_each_dev(dev, &ap->link, ALL) {
ata_acpi_clear_gtf(dev);
if (ata_dev_enabled(dev))
dev->flags |= ATA_DFLAG_ACPI_PENDING;
@@ -932,8 +929,8 @@ void ata_acpi_set_state(struct ata_port *ap, pm_message_t state)
if (state.event == PM_EVENT_ON)
acpi_bus_set_power(ap->acpi_handle, ACPI_STATE_D0);
- ata_link_for_each_dev(dev, &ap->link) {
- if (dev->acpi_handle && ata_dev_enabled(dev))
+ ata_for_each_dev(dev, &ap->link, ENABLED) {
+ if (dev->acpi_handle)
acpi_bus_set_power(dev->acpi_handle,
state.event == PM_EVENT_ON ?
ACPI_STATE_D0 : ACPI_STATE_D3);
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 5e2eb740df4..fecca4223f8 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -163,43 +163,119 @@ MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
-/*
- * Iterator helpers. Don't use directly.
+/**
+ * ata_link_next - link iteration helper
+ * @link: the previous link, NULL to start
+ * @ap: ATA port containing links to iterate
+ * @mode: iteration mode, one of ATA_LITER_*
+ *
+ * LOCKING:
+ * Host lock or EH context.
*
- * LOCKING:
- * Host lock or EH context.
+ * RETURNS:
+ * Pointer to the next link.
*/
-struct ata_link *__ata_port_next_link(struct ata_port *ap,
- struct ata_link *link, bool dev_only)
+struct ata_link *ata_link_next(struct ata_link *link, struct ata_port *ap,
+ enum ata_link_iter_mode mode)
{
+ BUG_ON(mode != ATA_LITER_EDGE &&
+ mode != ATA_LITER_PMP_FIRST && mode != ATA_LITER_HOST_FIRST);
+
/* NULL link indicates start of iteration */
- if (!link) {
- if (dev_only && sata_pmp_attached(ap))
- return ap->pmp_link;
- return &ap->link;
- }
+ if (!link)
+ switch (mode) {
+ case ATA_LITER_EDGE:
+ case ATA_LITER_PMP_FIRST:
+ if (sata_pmp_attached(ap))
+ return ap->pmp_link;
+ /* fall through */
+ case ATA_LITER_HOST_FIRST:
+ return &ap->link;
+ }
- /* we just iterated over the host master link, what's next? */
- if (link == &ap->link) {
- if (!sata_pmp_attached(ap)) {
- if (unlikely(ap->slave_link) && !dev_only)
+ /* we just iterated over the host link, what's next? */
+ if (link == &ap->link)
+ switch (mode) {
+ case ATA_LITER_HOST_FIRST:
+ if (sata_pmp_attached(ap))
+ return ap->pmp_link;
+ /* fall through */
+ case ATA_LITER_PMP_FIRST:
+ if (unlikely(ap->slave_link))
return ap->slave_link;
+ /* fall through */
+ case ATA_LITER_EDGE:
return NULL;
}
- return ap->pmp_link;
- }
/* slave_link excludes PMP */
if (unlikely(link == ap->slave_link))
return NULL;
- /* iterate to the next PMP link */
+ /* we were over a PMP link */
if (++link < ap->pmp_link + ap->nr_pmp_links)
return link;
+
+ if (mode == ATA_LITER_PMP_FIRST)
+ return &ap->link;
+
return NULL;
}
/**
+ * ata_dev_next - device iteration helper
+ * @dev: the previous device, NULL to start
+ * @link: ATA link containing devices to iterate
+ * @mode: iteration mode, one of ATA_DITER_*
+ *
+ * LOCKING:
+ * Host lock or EH context.
+ *
+ * RETURNS:
+ * Pointer to the next device.
+ */
+struct ata_device *ata_dev_next(struct ata_device *dev, struct ata_link *link,
+ enum ata_dev_iter_mode mode)
+{
+ BUG_ON(mode != ATA_DITER_ENABLED && mode != ATA_DITER_ENABLED_REVERSE &&
+ mode != ATA_DITER_ALL && mode != ATA_DITER_ALL_REVERSE);
+
+ /* NULL dev indicates start of iteration */
+ if (!dev)
+ switch (mode) {
+ case ATA_DITER_ENABLED:
+ case ATA_DITER_ALL:
+ dev = link->device;
+ goto check;
+ case ATA_DITER_ENABLED_REVERSE:
+ case ATA_DITER_ALL_REVERSE:
+ dev = link->device + ata_link_max_devices(link) - 1;
+ goto check;
+ }
+
+ next:
+ /* move to the next one */
+ switch (mode) {
+ case ATA_DITER_ENABLED:
+ case ATA_DITER_ALL:
+ if (++dev < link->device + ata_link_max_devices(link))
+ goto check;
+ return NULL;
+ case ATA_DITER_ENABLED_REVERSE:
+ case ATA_DITER_ALL_REVERSE:
+ if (--dev >= link->device)
+ goto check;
+ return NULL;
+ }
+
+ check:
+ if ((mode == ATA_DITER_ENABLED || mode == ATA_DITER_ENABLED_REVERSE) &&
+ !ata_dev_enabled(dev))
+ goto next;
+ return dev;
+}
+
+/**
* ata_dev_phys_link - find physical link for a device
* @dev: ATA device to look up physical link for
*
@@ -1107,8 +1183,8 @@ static void ata_lpm_enable(struct ata_host *host)
for (i = 0; i < host->n_ports; i++) {
ap = host->ports[i];
- ata_port_for_each_link(link, ap) {
- ata_link_for_each_dev(dev, link)
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, link, ALL)
ata_dev_disable_pm(dev);
}
}
@@ -2594,11 +2670,11 @@ int ata_bus_probe(struct ata_port *ap)
ata_port_probe(ap);
- ata_link_for_each_dev(dev, &ap->link)
+ ata_for_each_dev(dev, &ap->link, ALL)
tries[dev->devno] = ATA_PROBE_MAX_TRIES;
retry:
- ata_link_for_each_dev(dev, &ap->link) {
+ ata_for_each_dev(dev, &ap->link, ALL) {
/* If we issue an SRST then an ATA drive (not ATAPI)
* may change configuration and be in PIO0 timing. If
* we do a hard reset (or are coming from power on)
@@ -2620,7 +2696,7 @@ int ata_bus_probe(struct ata_port *ap)
/* reset and determine device classes */
ap->ops->phy_reset(ap);
- ata_link_for_each_dev(dev, &ap->link) {
+ ata_for_each_dev(dev, &ap->link, ALL) {
if (!(ap->flags & ATA_FLAG_DISABLED) &&
dev->class != ATA_DEV_UNKNOWN)
classes[dev->devno] = dev->class;
@@ -2636,7 +2712,7 @@ int ata_bus_probe(struct ata_port *ap)
specific sequence bass-ackwards so that PDIAG- is released by
the slave device */
- ata_link_for_each_dev_reverse(dev, &ap->link) {
+ ata_for_each_dev(dev, &ap->link, ALL_REVERSE) {
if (tries[dev->devno])
dev->class = classes[dev->devno];
@@ -2653,24 +2729,19 @@ int ata_bus_probe(struct ata_port *ap)
if (ap->ops->cable_detect)
ap->cbl = ap->ops->cable_detect(ap);
- /* We may have SATA bridge glue hiding here irrespective of the
- reported cable types and sensed types */
- ata_link_for_each_dev(dev, &ap->link) {
- if (!ata_dev_enabled(dev))
- continue;
- /* SATA drives indicate we have a bridge. We don't know which
- end of the link the bridge is which is a problem */
+ /* We may have SATA bridge glue hiding here irrespective of
+ * the reported cable types and sensed types. When SATA
+ * drives indicate we have a bridge, we don't know which end
+ * of the link the bridge is which is a problem.
+ */
+ ata_for_each_dev(dev, &ap->link, ENABLED)
if (ata_id_is_sata(dev->id))
ap->cbl = ATA_CBL_SATA;
- }
/* After the identify sequence we can now set up the devices. We do
this in the normal order so that the user doesn't get confused */
- ata_link_for_each_dev(dev, &ap->link) {
- if (!ata_dev_enabled(dev))
- continue;
-
+ ata_for_each_dev(dev, &ap->link, ENABLED) {
ap->link.eh_context.i.flags |= ATA_EHI_PRINTINFO;
rc = ata_dev_configure(dev);
ap->link.eh_context.i.flags &= ~ATA_EHI_PRINTINFO;
@@ -2683,9 +2754,8 @@ int ata_bus_probe(struct ata_port *ap)
if (rc)
goto fail;
- ata_link_for_each_dev(dev, &ap->link)
- if (ata_dev_enabled(dev))
- return 0;
+ ata_for_each_dev(dev, &ap->link, ENABLED)
+ return 0;
/* no device present, disable port */
ata_port_disable(ap);
@@ -3331,13 +3401,10 @@ int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
int rc = 0, used_dma = 0, found = 0;
/* step 1: calculate xfer_mask */
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ENABLED) {
unsigned long pio_mask, dma_mask;
unsigned int mode_mask;
- if (!ata_dev_enabled(dev))
- continue;
-
mode_mask = ATA_DMA_MASK_ATA;
if (dev->class == ATA_DEV_ATAPI)
mode_mask = ATA_DMA_MASK_ATAPI;
@@ -3366,10 +3433,7 @@ int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
goto out;
/* step 2: always set host PIO timings */
- ata_link_for_each_dev(dev, link) {
- if (!ata_dev_enabled(dev))
- continue;
-
+ ata_for_each_dev(dev, link, ENABLED) {
if (dev->pio_mode == 0xff) {
ata_dev_printk(dev, KERN_WARNING, "no PIO support\n");
rc = -EINVAL;
@@ -3383,8 +3447,8 @@ int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
}
/* step 3: set host DMA timings */
- ata_link_for_each_dev(dev, link) {
- if (!ata_dev_enabled(dev) || !ata_dma_enabled(dev))
+ ata_for_each_dev(dev, link, ENABLED) {
+ if (!ata_dma_enabled(dev))
continue;
dev->xfer_mode = dev->dma_mode;
@@ -3394,11 +3458,7 @@ int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
}
/* step 4: update devices' xfer mode */
- ata_link_for_each_dev(dev, link) {
- /* don't update suspended devices' xfer mode */
- if (!ata_dev_enabled(dev))
- continue;
-
+ ata_for_each_dev(dev, link, ENABLED) {
rc = ata_dev_set_mode(dev);
if (rc)
goto out;
@@ -4048,19 +4108,73 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "Maxtor 7V300F0", "VA111630", ATA_HORKAGE_NONCQ },
{ "ST380817AS", "3.42", ATA_HORKAGE_NONCQ },
{ "ST3160023AS", "3.42", ATA_HORKAGE_NONCQ },
+ { "OCZ CORE_SSD", "02.10104", ATA_HORKAGE_NONCQ },
/* Seagate NCQ + FLUSH CACHE firmware bug */
- { "ST31500341AS", "9JU138", ATA_HORKAGE_NONCQ |
+ { "ST31500341AS", "SD15", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST31500341AS", "SD16", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST31500341AS", "SD17", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST31500341AS", "SD18", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST31500341AS", "SD19", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+
+ { "ST31000333AS", "SD15", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST31000333AS", "SD16", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST31000333AS", "SD17", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST31000333AS", "SD18", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST31000333AS", "SD19", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+
+ { "ST3640623AS", "SD15", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3640623AS", "SD16", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3640623AS", "SD17", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3640623AS", "SD18", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3640623AS", "SD19", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+
+ { "ST3640323AS", "SD15", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3640323AS", "SD16", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3640323AS", "SD17", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3640323AS", "SD18", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3640323AS", "SD19", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+
+ { "ST3320813AS", "SD15", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3320813AS", "SD16", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3320813AS", "SD17", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3320813AS", "SD18", ATA_HORKAGE_NONCQ |
+ ATA_HORKAGE_FIRMWARE_WARN },
+ { "ST3320813AS", "SD19", ATA_HORKAGE_NONCQ |
ATA_HORKAGE_FIRMWARE_WARN },
- { "ST31000333AS", "9FZ136", ATA_HORKAGE_NONCQ |
+
+ { "ST3320613AS", "SD15", ATA_HORKAGE_NONCQ |
ATA_HORKAGE_FIRMWARE_WARN },
- { "ST3640623AS", "9FZ164", ATA_HORKAGE_NONCQ |
+ { "ST3320613AS", "SD16", ATA_HORKAGE_NONCQ |
ATA_HORKAGE_FIRMWARE_WARN },
- { "ST3640323AS", "9FZ134", ATA_HORKAGE_NONCQ |
+ { "ST3320613AS", "SD17", ATA_HORKAGE_NONCQ |
ATA_HORKAGE_FIRMWARE_WARN },
- { "ST3320813AS", "9FZ182", ATA_HORKAGE_NONCQ |
+ { "ST3320613AS", "SD18", ATA_HORKAGE_NONCQ |
ATA_HORKAGE_FIRMWARE_WARN },
- { "ST3320613AS", "9FZ162", ATA_HORKAGE_NONCQ |
+ { "ST3320613AS", "SD19", ATA_HORKAGE_NONCQ |
ATA_HORKAGE_FIRMWARE_WARN },
/* Blacklist entries taken from Silicon Image 3124/3132
@@ -4210,9 +4324,9 @@ static int cable_is_40wire(struct ata_port *ap)
* - if you have a non detect capable drive you don't want it
* to colour the choice
*/
- ata_port_for_each_link(link, ap) {
- ata_link_for_each_dev(dev, link) {
- if (ata_dev_enabled(dev) && !ata_is_40wire(dev))
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, link, ENABLED) {
+ if (!ata_is_40wire(dev))
return 0;
}
}
@@ -4619,7 +4733,6 @@ static struct ata_queued_cmd *ata_qc_new(struct ata_port *ap)
/**
* ata_qc_new_init - Request an available ATA command, and initialize it
* @dev: Device from whom we request an available command structure
- * @tag: command tag
*
* LOCKING:
* None.
@@ -5165,7 +5278,7 @@ static int ata_host_request_pm(struct ata_host *host, pm_message_t mesg,
}
ap->pflags |= ATA_PFLAG_PM_PENDING;
- __ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, HOST_FIRST) {
link->eh_info.action |= action;
link->eh_info.flags |= ehi_flags;
}
@@ -5994,8 +6107,6 @@ int ata_host_activate(struct ata_host *host, int irq,
static void ata_port_detach(struct ata_port *ap)
{
unsigned long flags;
- struct ata_link *link;
- struct ata_device *dev;
if (!ap->ops->error_handler)
goto skip_eh;
@@ -6003,28 +6114,15 @@ static void ata_port_detach(struct ata_port *ap)
/* tell EH we're leaving & flush EH */
spin_lock_irqsave(ap->lock, flags);
ap->pflags |= ATA_PFLAG_UNLOADING;
+ ata_port_schedule_eh(ap);
spin_unlock_irqrestore(ap->lock, flags);
+ /* wait till EH commits suicide */
ata_port_wait_eh(ap);
- /* EH is now guaranteed to see UNLOADING - EH context belongs
- * to us. Restore SControl and disable all existing devices.
- */
- __ata_port_for_each_link(link, ap) {
- sata_scr_write(link, SCR_CONTROL, link->saved_scontrol & 0xff0);
- ata_link_for_each_dev(dev, link)
- ata_dev_disable(dev);
- }
+ /* it better be dead now */
+ WARN_ON(!(ap->pflags & ATA_PFLAG_UNLOADED));
- /* Final freeze & EH. All in-flight commands are aborted. EH
- * will be skipped and retrials will be terminated with bad
- * target.
- */
- spin_lock_irqsave(ap->lock, flags);
- ata_port_freeze(ap); /* won't be thawed */
- spin_unlock_irqrestore(ap->lock, flags);
-
- ata_port_wait_eh(ap);
cancel_rearming_delayed_work(&ap->hotplug_task);
skip_eh:
@@ -6475,7 +6573,8 @@ EXPORT_SYMBOL_GPL(ata_base_port_ops);
EXPORT_SYMBOL_GPL(sata_port_ops);
EXPORT_SYMBOL_GPL(ata_dummy_port_ops);
EXPORT_SYMBOL_GPL(ata_dummy_port_info);
-EXPORT_SYMBOL_GPL(__ata_port_next_link);
+EXPORT_SYMBOL_GPL(ata_link_next);
+EXPORT_SYMBOL_GPL(ata_dev_next);
EXPORT_SYMBOL_GPL(ata_std_bios_param);
EXPORT_SYMBOL_GPL(ata_host_init);
EXPORT_SYMBOL_GPL(ata_host_alloc);
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 32da9a93ce4..8147a838637 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -422,7 +422,7 @@ static void ata_eh_clear_action(struct ata_link *link, struct ata_device *dev,
if (!dev) {
ehi->action &= ~action;
- ata_link_for_each_dev(tdev, link)
+ ata_for_each_dev(tdev, link, ALL)
ehi->dev_action[tdev->devno] &= ~action;
} else {
/* doesn't make sense for port-wide EH actions */
@@ -430,7 +430,7 @@ static void ata_eh_clear_action(struct ata_link *link, struct ata_device *dev,
/* break ehi->action into ehi->dev_action */
if (ehi->action & action) {
- ata_link_for_each_dev(tdev, link)
+ ata_for_each_dev(tdev, link, ALL)
ehi->dev_action[tdev->devno] |=
ehi->action & action;
ehi->action &= ~action;
@@ -491,6 +491,31 @@ enum blk_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd)
return ret;
}
+static void ata_eh_unload(struct ata_port *ap)
+{
+ struct ata_link *link;
+ struct ata_device *dev;
+ unsigned long flags;
+
+ /* Restore SControl IPM and SPD for the next driver and
+ * disable attached devices.
+ */
+ ata_for_each_link(link, ap, PMP_FIRST) {
+ sata_scr_write(link, SCR_CONTROL, link->saved_scontrol & 0xff0);
+ ata_for_each_dev(dev, link, ALL)
+ ata_dev_disable(dev);
+ }
+
+ /* freeze and set UNLOADED */
+ spin_lock_irqsave(ap->lock, flags);
+
+ ata_port_freeze(ap); /* won't be thawed */
+ ap->pflags &= ~ATA_PFLAG_EH_PENDING; /* clear pending from freeze */
+ ap->pflags |= ATA_PFLAG_UNLOADED;
+
+ spin_unlock_irqrestore(ap->lock, flags);
+}
+
/**
* ata_scsi_error - SCSI layer error handler callback
* @host: SCSI host on which error occurred
@@ -592,7 +617,7 @@ void ata_scsi_error(struct Scsi_Host *host)
/* fetch & clear EH info */
spin_lock_irqsave(ap->lock, flags);
- __ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, HOST_FIRST) {
struct ata_eh_context *ehc = &link->eh_context;
struct ata_device *dev;
@@ -600,12 +625,9 @@ void ata_scsi_error(struct Scsi_Host *host)
link->eh_context.i = link->eh_info;
memset(&link->eh_info, 0, sizeof(link->eh_info));
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ENABLED) {
int devno = dev->devno;
- if (!ata_dev_enabled(dev))
- continue;
-
ehc->saved_xfer_mode[devno] = dev->xfer_mode;
if (ata_ncq_enabled(dev))
ehc->saved_ncq_enabled |= 1 << devno;
@@ -621,8 +643,13 @@ void ata_scsi_error(struct Scsi_Host *host)
/* invoke EH, skip if unloading or suspended */
if (!(ap->pflags & (ATA_PFLAG_UNLOADING | ATA_PFLAG_SUSPENDED)))
ap->ops->error_handler(ap);
- else
+ else {
+ /* if unloading, commence suicide */
+ if ((ap->pflags & ATA_PFLAG_UNLOADING) &&
+ !(ap->pflags & ATA_PFLAG_UNLOADED))
+ ata_eh_unload(ap);
ata_eh_finish(ap);
+ }
/* process port suspend request */
ata_eh_handle_port_suspend(ap);
@@ -644,7 +671,7 @@ void ata_scsi_error(struct Scsi_Host *host)
}
/* this run is complete, make sure EH info is clear */
- __ata_port_for_each_link(link, ap)
+ ata_for_each_link(link, ap, HOST_FIRST)
memset(&link->eh_info, 0, sizeof(link->eh_info));
/* Clear host_eh_scheduled while holding ap->lock such
@@ -1025,7 +1052,7 @@ int sata_async_notification(struct ata_port *ap)
struct ata_link *link;
/* check and notify ATAPI AN */
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
if (!(sntf & (1 << link->pmp)))
continue;
@@ -2005,7 +2032,7 @@ void ata_eh_autopsy(struct ata_port *ap)
{
struct ata_link *link;
- ata_port_for_each_link(link, ap)
+ ata_for_each_link(link, ap, EDGE)
ata_eh_link_autopsy(link);
/* Handle the frigging slave link. Autopsy is done similarly
@@ -2219,7 +2246,7 @@ void ata_eh_report(struct ata_port *ap)
{
struct ata_link *link;
- __ata_port_for_each_link(link, ap)
+ ata_for_each_link(link, ap, HOST_FIRST)
ata_eh_link_report(link);
}
@@ -2230,7 +2257,7 @@ static int ata_do_reset(struct ata_link *link, ata_reset_fn_t reset,
struct ata_device *dev;
if (clear_classes)
- ata_link_for_each_dev(dev, link)
+ ata_for_each_dev(dev, link, ALL)
classes[dev->devno] = ATA_DEV_UNKNOWN;
return reset(link, classes, deadline);
@@ -2294,7 +2321,7 @@ int ata_eh_reset(struct ata_link *link, int classify,
ata_eh_about_to_do(link, NULL, ATA_EH_RESET);
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ALL) {
/* If we issue an SRST then an ATA drive (not ATAPI)
* may change configuration and be in PIO0 timing. If
* we do a hard reset (or are coming from power on)
@@ -2355,7 +2382,7 @@ int ata_eh_reset(struct ata_link *link, int classify,
"port disabled. ignoring.\n");
ehc->i.action &= ~ATA_EH_RESET;
- ata_link_for_each_dev(dev, link)
+ ata_for_each_dev(dev, link, ALL)
classes[dev->devno] = ATA_DEV_NONE;
rc = 0;
@@ -2369,7 +2396,7 @@ int ata_eh_reset(struct ata_link *link, int classify,
* bang classes and return.
*/
if (reset && !(ehc->i.action & ATA_EH_RESET)) {
- ata_link_for_each_dev(dev, link)
+ ata_for_each_dev(dev, link, ALL)
classes[dev->devno] = ATA_DEV_NONE;
rc = 0;
goto out;
@@ -2454,7 +2481,7 @@ int ata_eh_reset(struct ata_link *link, int classify,
/*
* Post-reset processing
*/
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ALL) {
/* After the reset, the device state is PIO 0 and the
* controller state is undefined. Reset also wakes up
* drives from sleeping mode.
@@ -2510,7 +2537,7 @@ int ata_eh_reset(struct ata_link *link, int classify,
* can be reliably detected and retried.
*/
nr_unknown = 0;
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ALL) {
/* convert all ATA_DEV_UNKNOWN to ATA_DEV_NONE */
if (classes[dev->devno] == ATA_DEV_UNKNOWN) {
classes[dev->devno] = ATA_DEV_NONE;
@@ -2619,8 +2646,8 @@ static inline void ata_eh_pull_park_action(struct ata_port *ap)
spin_lock_irqsave(ap->lock, flags);
INIT_COMPLETION(ap->park_req_pending);
- ata_port_for_each_link(link, ap) {
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, link, ALL) {
struct ata_eh_info *ehi = &link->eh_info;
link->eh_context.i.dev_action[dev->devno] |=
@@ -2675,7 +2702,7 @@ static int ata_eh_revalidate_and_attach(struct ata_link *link,
* be done backwards such that PDIAG- is released by the slave
* device before the master device is identified.
*/
- ata_link_for_each_dev_reverse(dev, link) {
+ ata_for_each_dev(dev, link, ALL_REVERSE) {
unsigned int action = ata_eh_dev_action(dev);
unsigned int readid_flags = 0;
@@ -2744,7 +2771,7 @@ static int ata_eh_revalidate_and_attach(struct ata_link *link,
/* Configure new devices forward such that user doesn't see
* device detection messages backwards.
*/
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ALL) {
if (!(new_mask & (1 << dev->devno)) ||
dev->class == ATA_DEV_PMP)
continue;
@@ -2793,10 +2820,7 @@ int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
int rc;
/* if data transfer is verified, clear DUBIOUS_XFER on ering top */
- ata_link_for_each_dev(dev, link) {
- if (!ata_dev_enabled(dev))
- continue;
-
+ ata_for_each_dev(dev, link, ENABLED) {
if (!(dev->flags & ATA_DFLAG_DUBIOUS_XFER)) {
struct ata_ering_entry *ent;
@@ -2813,14 +2837,11 @@ int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
rc = ata_do_set_mode(link, r_failed_dev);
/* if transfer mode has changed, set DUBIOUS_XFER on device */
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ENABLED) {
struct ata_eh_context *ehc = &link->eh_context;
u8 saved_xfer_mode = ehc->saved_xfer_mode[dev->devno];
u8 saved_ncq = !!(ehc->saved_ncq_enabled & (1 << dev->devno));
- if (!ata_dev_enabled(dev))
- continue;
-
if (dev->xfer_mode != saved_xfer_mode ||
ata_ncq_enabled(dev) != saved_ncq)
dev->flags |= ATA_DFLAG_DUBIOUS_XFER;
@@ -2881,9 +2902,8 @@ static int ata_link_nr_enabled(struct ata_link *link)
struct ata_device *dev;
int cnt = 0;
- ata_link_for_each_dev(dev, link)
- if (ata_dev_enabled(dev))
- cnt++;
+ ata_for_each_dev(dev, link, ENABLED)
+ cnt++;
return cnt;
}
@@ -2892,7 +2912,7 @@ static int ata_link_nr_vacant(struct ata_link *link)
struct ata_device *dev;
int cnt = 0;
- ata_link_for_each_dev(dev, link)
+ ata_for_each_dev(dev, link, ALL)
if (dev->class == ATA_DEV_UNKNOWN)
cnt++;
return cnt;
@@ -2918,7 +2938,7 @@ static int ata_eh_skip_recovery(struct ata_link *link)
return 0;
/* skip if class codes for all vacant slots are ATA_DEV_NONE */
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ALL) {
if (dev->class == ATA_DEV_UNKNOWN &&
ehc->classes[dev->devno] != ATA_DEV_NONE)
return 0;
@@ -3026,7 +3046,7 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
DPRINTK("ENTER\n");
/* prep for recovery */
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
struct ata_eh_context *ehc = &link->eh_context;
/* re-enable link? */
@@ -3038,7 +3058,7 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
ata_eh_done(link, NULL, ATA_EH_ENABLE_LINK);
}
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ALL) {
if (link->flags & ATA_LFLAG_NO_RETRY)
ehc->tries[dev->devno] = 1;
else
@@ -3068,19 +3088,19 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
goto out;
/* prep for EH */
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
struct ata_eh_context *ehc = &link->eh_context;
/* skip EH if possible. */
if (ata_eh_skip_recovery(link))
ehc->i.action = 0;
- ata_link_for_each_dev(dev, link)
+ ata_for_each_dev(dev, link, ALL)
ehc->classes[dev->devno] = ATA_DEV_UNKNOWN;
}
/* reset */
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
struct ata_eh_context *ehc = &link->eh_context;
if (!(ehc->i.action & ATA_EH_RESET))
@@ -3105,8 +3125,8 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
ata_eh_pull_park_action(ap);
deadline = jiffies;
- ata_port_for_each_link(link, ap) {
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, link, ALL) {
struct ata_eh_context *ehc = &link->eh_context;
unsigned long tmp;
@@ -3134,8 +3154,8 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
deadline = wait_for_completion_timeout(&ap->park_req_pending,
deadline - now);
} while (deadline);
- ata_port_for_each_link(link, ap) {
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, link, ALL) {
if (!(link->eh_context.unloaded_mask &
(1 << dev->devno)))
continue;
@@ -3146,7 +3166,7 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
}
/* the rest */
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
struct ata_eh_context *ehc = &link->eh_context;
/* revalidate existing devices and attach new ones */
@@ -3172,7 +3192,7 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
* disrupting the current users of the device.
*/
if (ehc->i.flags & ATA_EHI_DID_RESET) {
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ALL) {
if (dev->class != ATA_DEV_ATAPI)
continue;
rc = atapi_eh_clear_ua(dev);
@@ -3183,7 +3203,7 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
/* configure link power saving */
if (ehc->i.action & ATA_EH_LPM)
- ata_link_for_each_dev(dev, link)
+ ata_for_each_dev(dev, link, ALL)
ata_dev_enable_pm(dev, ap->pm_policy);
/* this link is okay now */
@@ -3288,7 +3308,7 @@ void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
rc = ata_eh_recover(ap, prereset, softreset, hardreset, postreset,
NULL);
if (rc) {
- ata_link_for_each_dev(dev, &ap->link)
+ ata_for_each_dev(dev, &ap->link, ALL)
ata_dev_disable(dev);
}
diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c
index b65db309c18..98ca07a2db8 100644
--- a/drivers/ata/libata-pmp.c
+++ b/drivers/ata/libata-pmp.c
@@ -321,7 +321,7 @@ static void sata_pmp_quirks(struct ata_port *ap)
if (vendor == 0x1095 && devid == 0x3726) {
/* sil3726 quirks */
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
/* Class code report is unreliable and SRST
* times out under certain configurations.
*/
@@ -336,7 +336,7 @@ static void sata_pmp_quirks(struct ata_port *ap)
}
} else if (vendor == 0x1095 && devid == 0x4723) {
/* sil4723 quirks */
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
/* class code report is unreliable */
if (link->pmp < 2)
link->flags |= ATA_LFLAG_ASSUME_ATA;
@@ -348,7 +348,7 @@ static void sata_pmp_quirks(struct ata_port *ap)
}
} else if (vendor == 0x1095 && devid == 0x4726) {
/* sil4726 quirks */
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
/* Class code report is unreliable and SRST
* times out under certain configurations.
* Config device can be at port 0 or 5 and
@@ -450,7 +450,7 @@ int sata_pmp_attach(struct ata_device *dev)
if (ap->ops->pmp_attach)
ap->ops->pmp_attach(ap);
- ata_port_for_each_link(tlink, ap)
+ ata_for_each_link(tlink, ap, EDGE)
sata_link_init_spd(tlink);
ata_acpi_associate_sata_port(ap);
@@ -487,7 +487,7 @@ static void sata_pmp_detach(struct ata_device *dev)
if (ap->ops->pmp_detach)
ap->ops->pmp_detach(ap);
- ata_port_for_each_link(tlink, ap)
+ ata_for_each_link(tlink, ap, EDGE)
ata_eh_detach_dev(tlink->device);
spin_lock_irqsave(ap->lock, flags);
@@ -700,7 +700,7 @@ static int sata_pmp_eh_recover_pmp(struct ata_port *ap,
}
/* PMP is reset, SErrors cannot be trusted, scan all */
- ata_port_for_each_link(tlink, ap) {
+ ata_for_each_link(tlink, ap, EDGE) {
struct ata_eh_context *ehc = &tlink->eh_context;
ehc->i.probe_mask |= ATA_ALL_DEVICES;
@@ -768,7 +768,7 @@ static int sata_pmp_eh_handle_disabled_links(struct ata_port *ap)
spin_lock_irqsave(ap->lock, flags);
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
if (!(link->flags & ATA_LFLAG_DISABLED))
continue;
@@ -852,7 +852,7 @@ static int sata_pmp_eh_recover(struct ata_port *ap)
int cnt, rc;
pmp_tries = ATA_EH_PMP_TRIES;
- ata_port_for_each_link(link, ap)
+ ata_for_each_link(link, ap, EDGE)
link_tries[link->pmp] = ATA_EH_PMP_LINK_TRIES;
retry:
@@ -861,7 +861,7 @@ static int sata_pmp_eh_recover(struct ata_port *ap)
rc = ata_eh_recover(ap, ops->prereset, ops->softreset,
ops->hardreset, ops->postreset, NULL);
if (rc) {
- ata_link_for_each_dev(dev, &ap->link)
+ ata_for_each_dev(dev, &ap->link, ALL)
ata_dev_disable(dev);
return rc;
}
@@ -870,7 +870,7 @@ static int sata_pmp_eh_recover(struct ata_port *ap)
return 0;
/* new PMP online */
- ata_port_for_each_link(link, ap)
+ ata_for_each_link(link, ap, EDGE)
link_tries[link->pmp] = ATA_EH_PMP_LINK_TRIES;
/* fall through */
@@ -942,7 +942,7 @@ static int sata_pmp_eh_recover(struct ata_port *ap)
}
cnt = 0;
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
if (!(gscr_error & (1 << link->pmp)))
continue;
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 47c7afcb36f..0b2e14f6765 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3229,12 +3229,12 @@ void ata_scsi_scan_host(struct ata_port *ap, int sync)
return;
repeat:
- ata_port_for_each_link(link, ap) {
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, link, ENABLED) {
struct scsi_device *sdev;
int channel = 0, id = 0;
- if (!ata_dev_enabled(dev) || dev->sdev)
+ if (dev->sdev)
continue;
if (ata_is_host_link(link))
@@ -3255,9 +3255,9 @@ void ata_scsi_scan_host(struct ata_port *ap, int sync)
* failure occurred, scan would have failed silently. Check
* whether all devices are attached.
*/
- ata_port_for_each_link(link, ap) {
- ata_link_for_each_dev(dev, link) {
- if (ata_dev_enabled(dev) && !dev->sdev)
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, link, ENABLED) {
+ if (!dev->sdev)
goto exit_loop;
}
}
@@ -3381,7 +3381,7 @@ static void ata_scsi_handle_link_detach(struct ata_link *link)
struct ata_port *ap = link->ap;
struct ata_device *dev;
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ALL) {
unsigned long flags;
if (!(dev->flags & ATA_DFLAG_DETACHED))
@@ -3496,7 +3496,7 @@ static int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel,
if (devno == SCAN_WILD_CARD) {
struct ata_link *link;
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
struct ata_eh_info *ehi = &link->eh_info;
ehi->probe_mask |= ATA_ALL_DEVICES;
ehi->action |= ATA_EH_RESET;
@@ -3544,11 +3544,11 @@ void ata_scsi_dev_rescan(struct work_struct *work)
spin_lock_irqsave(ap->lock, flags);
- ata_port_for_each_link(link, ap) {
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, link, ENABLED) {
struct scsi_device *sdev = dev->sdev;
- if (!ata_dev_enabled(dev) || !sdev)
+ if (!sdev)
continue;
if (scsi_device_get(sdev))
continue;
diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c
index 1266924c11f..1050fed96b2 100644
--- a/drivers/ata/pata_bf54x.c
+++ b/drivers/ata/pata_bf54x.c
@@ -356,7 +356,6 @@ static void bfin_set_piomode(struct ata_port *ap, struct ata_device *adev)
* bfin_set_dmamode - Initialize host controller PATA DMA timings
* @ap: Port whose timings we are configuring
* @adev: um
- * @udma: udma mode, 0 - 6
*
* Set UDMA mode for device.
*
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index a098ba8eaab..e0c4f05d7d5 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -183,7 +183,9 @@ static unsigned long hpt366_filter(struct ata_device *adev, unsigned long mask)
mask &= ~(0xF8 << ATA_SHIFT_UDMA);
if (hpt_dma_blacklisted(adev, "UDMA4", bad_ata66_4))
mask &= ~(0xF0 << ATA_SHIFT_UDMA);
- }
+ } else if (adev->class == ATA_DEV_ATAPI)
+ mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
+
return ata_bmdma_mode_filter(adev, mask);
}
@@ -211,11 +213,15 @@ static u32 hpt36x_find_mode(struct ata_port *ap, int speed)
static int hpt36x_cable_detect(struct ata_port *ap)
{
- u8 ata66;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 ata66;
+ /*
+ * Each channel of pata_hpt366 occupies separate PCI function
+ * as the primary channel and bit1 indicates the cable type.
+ */
pci_read_config_byte(pdev, 0x5A, &ata66);
- if (ata66 & (1 << ap->port_no))
+ if (ata66 & 2)
return ATA_CBL_PATA40;
return ATA_CBL_PATA80;
}
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index 860ede52628..f828a29d775 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -465,24 +465,22 @@ static int it821x_smart_set_mode(struct ata_link *link, struct ata_device **unus
{
struct ata_device *dev;
- ata_link_for_each_dev(dev, link) {
- if (ata_dev_enabled(dev)) {
- /* We don't really care */
- dev->pio_mode = XFER_PIO_0;
- dev->dma_mode = XFER_MW_DMA_0;
- /* We do need the right mode information for DMA or PIO
- and this comes from the current configuration flags */
- if (ata_id_has_dma(dev->id)) {
- ata_dev_printk(dev, KERN_INFO, "configured for DMA\n");
- dev->xfer_mode = XFER_MW_DMA_0;
- dev->xfer_shift = ATA_SHIFT_MWDMA;
- dev->flags &= ~ATA_DFLAG_PIO;
- } else {
- ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
- dev->xfer_mode = XFER_PIO_0;
- dev->xfer_shift = ATA_SHIFT_PIO;
- dev->flags |= ATA_DFLAG_PIO;
- }
+ ata_for_each_dev(dev, link, ENABLED) {
+ /* We don't really care */
+ dev->pio_mode = XFER_PIO_0;
+ dev->dma_mode = XFER_MW_DMA_0;
+ /* We do need the right mode information for DMA or PIO
+ and this comes from the current configuration flags */
+ if (ata_id_has_dma(dev->id)) {
+ ata_dev_printk(dev, KERN_INFO, "configured for DMA\n");
+ dev->xfer_mode = XFER_MW_DMA_0;
+ dev->xfer_shift = ATA_SHIFT_MWDMA;
+ dev->flags &= ~ATA_DFLAG_PIO;
+ } else {
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
+ dev->xfer_mode = XFER_PIO_0;
+ dev->xfer_shift = ATA_SHIFT_PIO;
+ dev->flags |= ATA_DFLAG_PIO;
}
}
return 0;
diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c
index 2014253f6c8..b173c157ab0 100644
--- a/drivers/ata/pata_ixp4xx_cf.c
+++ b/drivers/ata/pata_ixp4xx_cf.c
@@ -30,14 +30,12 @@ static int ixp4xx_set_mode(struct ata_link *link, struct ata_device **error)
{
struct ata_device *dev;
- ata_link_for_each_dev(dev, link) {
- if (ata_dev_enabled(dev)) {
- ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
- dev->pio_mode = XFER_PIO_0;
- dev->xfer_mode = XFER_PIO_0;
- dev->xfer_shift = ATA_SHIFT_PIO;
- dev->flags |= ATA_DFLAG_PIO;
- }
+ ata_for_each_dev(dev, link, ENABLED) {
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
+ dev->pio_mode = XFER_PIO_0;
+ dev->xfer_mode = XFER_PIO_0;
+ dev->xfer_shift = ATA_SHIFT_PIO;
+ dev->flags |= ATA_DFLAG_PIO;
}
return 0;
}
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index 930c2208640..6c1d778b63a 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -194,15 +194,12 @@ static int legacy_set_mode(struct ata_link *link, struct ata_device **unused)
{
struct ata_device *dev;
- ata_link_for_each_dev(dev, link) {
- if (ata_dev_enabled(dev)) {
- ata_dev_printk(dev, KERN_INFO,
- "configured for PIO\n");
- dev->pio_mode = XFER_PIO_0;
- dev->xfer_mode = XFER_PIO_0;
- dev->xfer_shift = ATA_SHIFT_PIO;
- dev->flags |= ATA_DFLAG_PIO;
- }
+ ata_for_each_dev(dev, link, ENABLED) {
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
+ dev->pio_mode = XFER_PIO_0;
+ dev->xfer_mode = XFER_PIO_0;
+ dev->xfer_shift = ATA_SHIFT_PIO;
+ dev->flags |= ATA_DFLAG_PIO;
}
return 0;
}
@@ -641,7 +638,6 @@ static void qdi6500_set_piomode(struct ata_port *ap, struct ata_device *adev)
* qdi6580dp_set_piomode - PIO setup for dual channel
* @ap: Port
* @adev: Device
- * @irq: interrupt line
*
* In dual channel mode the 6580 has one clock per channel and we have
* to software clockswitch in qc_issue.
@@ -1028,7 +1024,7 @@ static __init int legacy_init_one(struct legacy_probe *probe)
/* Nothing found means we drop the port as its probably not there */
ret = -ENODEV;
- ata_link_for_each_dev(dev, &ap->link) {
+ ata_for_each_dev(dev, &ap->link, ALL) {
if (!ata_dev_absent(dev)) {
legacy_host[probe->slot] = host;
ld->platform_dev = pdev;
diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index a9e827356d0..50ae6d13078 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -6,6 +6,9 @@
* Copyright (C) 2006 Sylvain Munaut <tnt@246tNt.com>
* Copyright (C) 2003 Mipsys - Benjamin Herrenschmidt
*
+ * UDMA support based on patches by Freescale (Bernard Kuhn, John Rigby),
+ * Domen Puncer and Tim Yamin.
+ *
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
@@ -17,28 +20,46 @@
#include <linux/delay.h>
#include <linux/libata.h>
#include <linux/of_platform.h>
+#include <linux/types.h>
-#include <asm/types.h>
+#include <asm/cacheflush.h>
#include <asm/prom.h>
#include <asm/mpc52xx.h>
+#include <sysdev/bestcomm/bestcomm.h>
+#include <sysdev/bestcomm/bestcomm_priv.h>
+#include <sysdev/bestcomm/ata.h>
#define DRV_NAME "mpc52xx_ata"
-#define DRV_VERSION "0.1.2"
-
/* Private structures used by the driver */
struct mpc52xx_ata_timings {
u32 pio1;
u32 pio2;
+ u32 mdma1;
+ u32 mdma2;
+ u32 udma1;
+ u32 udma2;
+ u32 udma3;
+ u32 udma4;
+ u32 udma5;
+ int using_udma;
};
struct mpc52xx_ata_priv {
unsigned int ipb_period;
- struct mpc52xx_ata __iomem * ata_regs;
+ struct mpc52xx_ata __iomem *ata_regs;
+ phys_addr_t ata_regs_pa;
int ata_irq;
struct mpc52xx_ata_timings timings[2];
int csel;
+
+ /* DMA */
+ struct bcom_task *dmatsk;
+ const struct udmaspec *udmaspec;
+ const struct mdmaspec *mdmaspec;
+ int mpc52xx_ata_dma_last_write;
+ int waiting_for_dma;
};
@@ -53,6 +74,107 @@ static const int ataspec_ta[5] = { 35, 35, 35, 35, 35};
#define CALC_CLKCYC(c,v) ((((v)+(c)-1)/(c)))
+/* ======================================================================== */
+
+/* ATAPI-4 MDMA specs (in clocks) */
+struct mdmaspec {
+ u32 t0M;
+ u32 td;
+ u32 th;
+ u32 tj;
+ u32 tkw;
+ u32 tm;
+ u32 tn;
+};
+
+static const struct mdmaspec mdmaspec66[3] = {
+ { .t0M = 32, .td = 15, .th = 2, .tj = 2, .tkw = 15, .tm = 4, .tn = 1 },
+ { .t0M = 10, .td = 6, .th = 1, .tj = 1, .tkw = 4, .tm = 2, .tn = 1 },
+ { .t0M = 8, .td = 5, .th = 1, .tj = 1, .tkw = 2, .tm = 2, .tn = 1 },
+};
+
+static const struct mdmaspec mdmaspec132[3] = {
+ { .t0M = 64, .td = 29, .th = 3, .tj = 3, .tkw = 29, .tm = 7, .tn = 2 },
+ { .t0M = 20, .td = 11, .th = 2, .tj = 1, .tkw = 7, .tm = 4, .tn = 1 },
+ { .t0M = 16, .td = 10, .th = 2, .tj = 1, .tkw = 4, .tm = 4, .tn = 1 },
+};
+
+/* ATAPI-4 UDMA specs (in clocks) */
+struct udmaspec {
+ u32 tcyc;
+ u32 t2cyc;
+ u32 tds;
+ u32 tdh;
+ u32 tdvs;
+ u32 tdvh;
+ u32 tfs;
+ u32 tli;
+ u32 tmli;
+ u32 taz;
+ u32 tzah;
+ u32 tenv;
+ u32 tsr;
+ u32 trfs;
+ u32 trp;
+ u32 tack;
+ u32 tss;
+};
+
+static const struct udmaspec udmaspec66[6] = {
+ { .tcyc = 8, .t2cyc = 16, .tds = 1, .tdh = 1, .tdvs = 5, .tdvh = 1,
+ .tfs = 16, .tli = 10, .tmli = 2, .taz = 1, .tzah = 2, .tenv = 2,
+ .tsr = 3, .trfs = 5, .trp = 11, .tack = 2, .tss = 4,
+ },
+ { .tcyc = 5, .t2cyc = 11, .tds = 1, .tdh = 1, .tdvs = 4, .tdvh = 1,
+ .tfs = 14, .tli = 10, .tmli = 2, .taz = 1, .tzah = 2, .tenv = 2,
+ .tsr = 2, .trfs = 5, .trp = 9, .tack = 2, .tss = 4,
+ },
+ { .tcyc = 4, .t2cyc = 8, .tds = 1, .tdh = 1, .tdvs = 3, .tdvh = 1,
+ .tfs = 12, .tli = 10, .tmli = 2, .taz = 1, .tzah = 2, .tenv = 2,
+ .tsr = 2, .trfs = 4, .trp = 7, .tack = 2, .tss = 4,
+ },
+ { .tcyc = 3, .t2cyc = 6, .tds = 1, .tdh = 1, .tdvs = 2, .tdvh = 1,
+ .tfs = 9, .tli = 7, .tmli = 2, .taz = 1, .tzah = 2, .tenv = 2,
+ .tsr = 2, .trfs = 4, .trp = 7, .tack = 2, .tss = 4,
+ },
+ { .tcyc = 2, .t2cyc = 4, .tds = 1, .tdh = 1, .tdvs = 1, .tdvh = 1,
+ .tfs = 8, .tli = 8, .tmli = 2, .taz = 1, .tzah = 2, .tenv = 2,
+ .tsr = 2, .trfs = 4, .trp = 7, .tack = 2, .tss = 4,
+ },
+ { .tcyc = 2, .t2cyc = 2, .tds = 1, .tdh = 1, .tdvs = 1, .tdvh = 1,
+ .tfs = 6, .tli = 5, .tmli = 2, .taz = 1, .tzah = 2, .tenv = 2,
+ .tsr = 2, .trfs = 4, .trp = 6, .tack = 2, .tss = 4,
+ },
+};
+
+static const struct udmaspec udmaspec132[6] = {
+ { .tcyc = 15, .t2cyc = 31, .tds = 2, .tdh = 1, .tdvs = 10, .tdvh = 1,
+ .tfs = 30, .tli = 20, .tmli = 3, .taz = 2, .tzah = 3, .tenv = 3,
+ .tsr = 7, .trfs = 10, .trp = 22, .tack = 3, .tss = 7,
+ },
+ { .tcyc = 10, .t2cyc = 21, .tds = 2, .tdh = 1, .tdvs = 7, .tdvh = 1,
+ .tfs = 27, .tli = 20, .tmli = 3, .taz = 2, .tzah = 3, .tenv = 3,
+ .tsr = 4, .trfs = 10, .trp = 17, .tack = 3, .tss = 7,
+ },
+ { .tcyc = 6, .t2cyc = 12, .tds = 1, .tdh = 1, .tdvs = 5, .tdvh = 1,
+ .tfs = 23, .tli = 20, .tmli = 3, .taz = 2, .tzah = 3, .tenv = 3,
+ .tsr = 3, .trfs = 8, .trp = 14, .tack = 3, .tss = 7,
+ },
+ { .tcyc = 7, .t2cyc = 12, .tds = 1, .tdh = 1, .tdvs = 3, .tdvh = 1,
+ .tfs = 15, .tli = 13, .tmli = 3, .taz = 2, .tzah = 3, .tenv = 3,
+ .tsr = 3, .trfs = 8, .trp = 14, .tack = 3, .tss = 7,
+ },
+ { .tcyc = 2, .t2cyc = 5, .tds = 0, .tdh = 0, .tdvs = 1, .tdvh = 1,
+ .tfs = 16, .tli = 14, .tmli = 2, .taz = 1, .tzah = 2, .tenv = 2,
+ .tsr = 2, .trfs = 7, .trp = 13, .tack = 2, .tss = 6,
+ },
+ { .tcyc = 3, .t2cyc = 6, .tds = 1, .tdh = 1, .tdvs = 1, .tdvh = 1,
+ .tfs = 12, .tli = 10, .tmli = 3, .taz = 2, .tzah = 3, .tenv = 3,
+ .tsr = 3, .trfs = 7, .trp = 12, .tack = 3, .tss = 7,
+ },
+};
+
+/* ======================================================================== */
/* Bit definitions inside the registers */
#define MPC52xx_ATA_HOSTCONF_SMR 0x80000000UL /* State machine reset */
@@ -66,6 +188,7 @@ static const int ataspec_ta[5] = { 35, 35, 35, 35, 35};
#define MPC52xx_ATA_HOSTSTAT_WERR 0x01000000UL /* Write Error */
#define MPC52xx_ATA_FIFOSTAT_EMPTY 0x01 /* FIFO Empty */
+#define MPC52xx_ATA_FIFOSTAT_ERROR 0x40 /* FIFO Error */
#define MPC52xx_ATA_DMAMODE_WRITE 0x01 /* Write DMA */
#define MPC52xx_ATA_DMAMODE_READ 0x02 /* Read DMA */
@@ -75,6 +198,8 @@ static const int ataspec_ta[5] = { 35, 35, 35, 35, 35};
#define MPC52xx_ATA_DMAMODE_FR 0x20 /* FIFO Reset */
#define MPC52xx_ATA_DMAMODE_HUT 0x40 /* Host UDMA burst terminate */
+#define MAX_DMA_BUFFERS 128
+#define MAX_DMA_BUFFER_SIZE 0x20000u
/* Structure of the hardware registers */
struct mpc52xx_ata {
@@ -140,7 +265,6 @@ struct mpc52xx_ata {
/* MPC52xx low level hw control */
-
static int
mpc52xx_ata_compute_pio_timings(struct mpc52xx_ata_priv *priv, int dev, int pio)
{
@@ -148,7 +272,7 @@ mpc52xx_ata_compute_pio_timings(struct mpc52xx_ata_priv *priv, int dev, int pio)
unsigned int ipb_period = priv->ipb_period;
unsigned int t0, t1, t2_8, t2_16, t2i, t4, ta;
- if ((pio<0) || (pio>4))
+ if ((pio < 0) || (pio > 4))
return -EINVAL;
t0 = CALC_CLKCYC(ipb_period, 1000 * ataspec_t0[pio]);
@@ -165,6 +289,43 @@ mpc52xx_ata_compute_pio_timings(struct mpc52xx_ata_priv *priv, int dev, int pio)
return 0;
}
+static int
+mpc52xx_ata_compute_mdma_timings(struct mpc52xx_ata_priv *priv, int dev,
+ int speed)
+{
+ struct mpc52xx_ata_timings *t = &priv->timings[dev];
+ const struct mdmaspec *s = &priv->mdmaspec[speed];
+
+ if (speed < 0 || speed > 2)
+ return -EINVAL;
+
+ t->mdma1 = (s->t0M << 24) | (s->td << 16) | (s->tkw << 8) | (s->tm);
+ t->mdma2 = (s->th << 24) | (s->tj << 16) | (s->tn << 8);
+ t->using_udma = 0;
+
+ return 0;
+}
+
+static int
+mpc52xx_ata_compute_udma_timings(struct mpc52xx_ata_priv *priv, int dev,
+ int speed)
+{
+ struct mpc52xx_ata_timings *t = &priv->timings[dev];
+ const struct udmaspec *s = &priv->udmaspec[speed];
+
+ if (speed < 0 || speed > 2)
+ return -EINVAL;
+
+ t->udma1 = (s->t2cyc << 24) | (s->tcyc << 16) | (s->tds << 8) | s->tdh;
+ t->udma2 = (s->tdvs << 24) | (s->tdvh << 16) | (s->tfs << 8) | s->tli;
+ t->udma3 = (s->tmli << 24) | (s->taz << 16) | (s->tenv << 8) | s->tsr;
+ t->udma4 = (s->tss << 24) | (s->trfs << 16) | (s->trp << 8) | s->tack;
+ t->udma5 = (s->tzah << 24);
+ t->using_udma = 1;
+
+ return 0;
+}
+
static void
mpc52xx_ata_apply_timings(struct mpc52xx_ata_priv *priv, int device)
{
@@ -173,14 +334,13 @@ mpc52xx_ata_apply_timings(struct mpc52xx_ata_priv *priv, int device)
out_be32(&regs->pio1, timing->pio1);
out_be32(&regs->pio2, timing->pio2);
- out_be32(&regs->mdma1, 0);
- out_be32(&regs->mdma2, 0);
- out_be32(&regs->udma1, 0);
- out_be32(&regs->udma2, 0);
- out_be32(&regs->udma3, 0);
- out_be32(&regs->udma4, 0);
- out_be32(&regs->udma5, 0);
-
+ out_be32(&regs->mdma1, timing->mdma1);
+ out_be32(&regs->mdma2, timing->mdma2);
+ out_be32(&regs->udma1, timing->udma1);
+ out_be32(&regs->udma2, timing->udma2);
+ out_be32(&regs->udma3, timing->udma3);
+ out_be32(&regs->udma4, timing->udma4);
+ out_be32(&regs->udma5, timing->udma5);
priv->csel = device;
}
@@ -208,7 +368,7 @@ mpc52xx_ata_hw_init(struct mpc52xx_ata_priv *priv)
/* Set the time slot to 1us */
tslot = CALC_CLKCYC(priv->ipb_period, 1000000);
- out_be32(&regs->share_cnt, tslot << 16 );
+ out_be32(&regs->share_cnt, tslot << 16);
/* Init timings to PIO0 */
memset(priv->timings, 0x00, 2*sizeof(struct mpc52xx_ata_timings));
@@ -237,13 +397,37 @@ mpc52xx_ata_set_piomode(struct ata_port *ap, struct ata_device *adev)
rv = mpc52xx_ata_compute_pio_timings(priv, adev->devno, pio);
if (rv) {
- printk(KERN_ERR DRV_NAME
- ": Trying to select invalid PIO mode %d\n", pio);
+ dev_err(ap->dev, "error: invalid PIO mode: %d\n", pio);
+ return;
+ }
+
+ mpc52xx_ata_apply_timings(priv, adev->devno);
+}
+
+static void
+mpc52xx_ata_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct mpc52xx_ata_priv *priv = ap->host->private_data;
+ int rv;
+
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ int dma = adev->dma_mode - XFER_UDMA_0;
+ rv = mpc52xx_ata_compute_udma_timings(priv, adev->devno, dma);
+ } else {
+ int dma = adev->dma_mode - XFER_MW_DMA_0;
+ rv = mpc52xx_ata_compute_mdma_timings(priv, adev->devno, dma);
+ }
+
+ if (rv) {
+ dev_alert(ap->dev,
+ "Trying to select invalid DMA mode %d\n",
+ adev->dma_mode);
return;
}
mpc52xx_ata_apply_timings(priv, adev->devno);
}
+
static void
mpc52xx_ata_dev_select(struct ata_port *ap, unsigned int device)
{
@@ -252,7 +436,173 @@ mpc52xx_ata_dev_select(struct ata_port *ap, unsigned int device)
if (device != priv->csel)
mpc52xx_ata_apply_timings(priv, device);
- ata_sff_dev_select(ap,device);
+ ata_sff_dev_select(ap, device);
+}
+
+static int
+mpc52xx_ata_build_dmatable(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct mpc52xx_ata_priv *priv = ap->host->private_data;
+ struct bcom_ata_bd *bd;
+ unsigned int read = !(qc->tf.flags & ATA_TFLAG_WRITE), si;
+ struct scatterlist *sg;
+ int count = 0;
+
+ if (read)
+ bcom_ata_rx_prepare(priv->dmatsk);
+ else
+ bcom_ata_tx_prepare(priv->dmatsk);
+
+ for_each_sg(qc->sg, sg, qc->n_elem, si) {
+ dma_addr_t cur_addr = sg_dma_address(sg);
+ u32 cur_len = sg_dma_len(sg);
+
+ while (cur_len) {
+ unsigned int tc = min(cur_len, MAX_DMA_BUFFER_SIZE);
+ bd = (struct bcom_ata_bd *)
+ bcom_prepare_next_buffer(priv->dmatsk);
+
+ if (read) {
+ bd->status = tc;
+ bd->src_pa = (__force u32) priv->ata_regs_pa +
+ offsetof(struct mpc52xx_ata, fifo_data);
+ bd->dst_pa = (__force u32) cur_addr;
+ } else {
+ bd->status = tc;
+ bd->src_pa = (__force u32) cur_addr;
+ bd->dst_pa = (__force u32) priv->ata_regs_pa +
+ offsetof(struct mpc52xx_ata, fifo_data);
+ }
+
+ bcom_submit_next_buffer(priv->dmatsk, NULL);
+
+ cur_addr += tc;
+ cur_len -= tc;
+ count++;
+
+ if (count > MAX_DMA_BUFFERS) {
+ dev_alert(ap->dev, "dma table"
+ "too small\n");
+ goto use_pio_instead;
+ }
+ }
+ }
+ return 1;
+
+ use_pio_instead:
+ bcom_ata_reset_bd(priv->dmatsk);
+ return 0;
+}
+
+static void
+mpc52xx_bmdma_setup(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct mpc52xx_ata_priv *priv = ap->host->private_data;
+ struct mpc52xx_ata __iomem *regs = priv->ata_regs;
+
+ unsigned int read = !(qc->tf.flags & ATA_TFLAG_WRITE);
+ u8 dma_mode;
+
+ if (!mpc52xx_ata_build_dmatable(qc))
+ dev_alert(ap->dev, "%s: %i, return 1?\n",
+ __func__, __LINE__);
+
+ /* Check FIFO is OK... */
+ if (in_8(&priv->ata_regs->fifo_status) & MPC52xx_ATA_FIFOSTAT_ERROR)
+ dev_alert(ap->dev, "%s: FIFO error detected: 0x%02x!\n",
+ __func__, in_8(&priv->ata_regs->fifo_status));
+
+ if (read) {
+ dma_mode = MPC52xx_ATA_DMAMODE_IE | MPC52xx_ATA_DMAMODE_READ |
+ MPC52xx_ATA_DMAMODE_FE;
+
+ /* Setup FIFO if direction changed */
+ if (priv->mpc52xx_ata_dma_last_write != 0) {
+ priv->mpc52xx_ata_dma_last_write = 0;
+
+ /* Configure FIFO with granularity to 7 */
+ out_8(&regs->fifo_control, 7);
+ out_be16(&regs->fifo_alarm, 128);
+
+ /* Set FIFO Reset bit (FR) */
+ out_8(&regs->dma_mode, MPC52xx_ATA_DMAMODE_FR);
+ }
+ } else {
+ dma_mode = MPC52xx_ATA_DMAMODE_IE | MPC52xx_ATA_DMAMODE_WRITE;
+
+ /* Setup FIFO if direction changed */
+ if (priv->mpc52xx_ata_dma_last_write != 1) {
+ priv->mpc52xx_ata_dma_last_write = 1;
+
+ /* Configure FIFO with granularity to 4 */
+ out_8(&regs->fifo_control, 4);
+ out_be16(&regs->fifo_alarm, 128);
+ }
+ }
+
+ if (priv->timings[qc->dev->devno].using_udma)
+ dma_mode |= MPC52xx_ATA_DMAMODE_UDMA;
+
+ out_8(&regs->dma_mode, dma_mode);
+ priv->waiting_for_dma = ATA_DMA_ACTIVE;
+
+ ata_wait_idle(ap);
+ ap->ops->sff_exec_command(ap, &qc->tf);
+}
+
+static void
+mpc52xx_bmdma_start(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct mpc52xx_ata_priv *priv = ap->host->private_data;
+
+ bcom_set_task_auto_start(priv->dmatsk->tasknum, priv->dmatsk->tasknum);
+ bcom_enable(priv->dmatsk);
+}
+
+static void
+mpc52xx_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct mpc52xx_ata_priv *priv = ap->host->private_data;
+
+ bcom_disable(priv->dmatsk);
+ bcom_ata_reset_bd(priv->dmatsk);
+ priv->waiting_for_dma = 0;
+
+ /* Check FIFO is OK... */
+ if (in_8(&priv->ata_regs->fifo_status) & MPC52xx_ATA_FIFOSTAT_ERROR)
+ dev_alert(ap->dev, "%s: FIFO error detected: 0x%02x!\n",
+ __func__, in_8(&priv->ata_regs->fifo_status));
+}
+
+static u8
+mpc52xx_bmdma_status(struct ata_port *ap)
+{
+ struct mpc52xx_ata_priv *priv = ap->host->private_data;
+
+ /* Check FIFO is OK... */
+ if (in_8(&priv->ata_regs->fifo_status) & MPC52xx_ATA_FIFOSTAT_ERROR) {
+ dev_alert(ap->dev, "%s: FIFO error detected: 0x%02x!\n",
+ __func__, in_8(&priv->ata_regs->fifo_status));
+ return priv->waiting_for_dma | ATA_DMA_ERR;
+ }
+
+ return priv->waiting_for_dma;
+}
+
+static irqreturn_t
+mpc52xx_ata_task_irq(int irq, void *vpriv)
+{
+ struct mpc52xx_ata_priv *priv = vpriv;
+ while (bcom_buffer_done(priv->dmatsk))
+ bcom_retrieve_buffer(priv->dmatsk, NULL, NULL);
+
+ priv->waiting_for_dma |= ATA_DMA_INTR;
+
+ return IRQ_HANDLED;
}
static struct scsi_host_template mpc52xx_ata_sht = {
@@ -262,14 +612,18 @@ static struct scsi_host_template mpc52xx_ata_sht = {
static struct ata_port_operations mpc52xx_ata_port_ops = {
.inherits = &ata_sff_port_ops,
.sff_dev_select = mpc52xx_ata_dev_select,
- .cable_detect = ata_cable_40wire,
.set_piomode = mpc52xx_ata_set_piomode,
- .post_internal_cmd = ATA_OP_NULL,
+ .set_dmamode = mpc52xx_ata_set_dmamode,
+ .bmdma_setup = mpc52xx_bmdma_setup,
+ .bmdma_start = mpc52xx_bmdma_start,
+ .bmdma_stop = mpc52xx_bmdma_stop,
+ .bmdma_status = mpc52xx_bmdma_status,
+ .qc_prep = ata_noop_qc_prep,
};
static int __devinit
mpc52xx_ata_init_one(struct device *dev, struct mpc52xx_ata_priv *priv,
- unsigned long raw_ata_regs)
+ unsigned long raw_ata_regs, int mwdma_mask, int udma_mask)
{
struct ata_host *host;
struct ata_port *ap;
@@ -281,9 +635,9 @@ mpc52xx_ata_init_one(struct device *dev, struct mpc52xx_ata_priv *priv,
ap = host->ports[0];
ap->flags |= ATA_FLAG_SLAVE_POSS;
- ap->pio_mask = 0x1f; /* Up to PIO4 */
- ap->mwdma_mask = 0x00; /* No MWDMA */
- ap->udma_mask = 0x00; /* No UDMA */
+ ap->pio_mask = ATA_PIO4;
+ ap->mwdma_mask = mwdma_mask;
+ ap->udma_mask = udma_mask;
ap->ops = &mpc52xx_ata_port_ops;
host->private_data = priv;
@@ -330,89 +684,139 @@ mpc52xx_ata_probe(struct of_device *op, const struct of_device_id *match)
{
unsigned int ipb_freq;
struct resource res_mem;
- int ata_irq;
+ int ata_irq = 0;
struct mpc52xx_ata __iomem *ata_regs;
- struct mpc52xx_ata_priv *priv;
- int rv;
+ struct mpc52xx_ata_priv *priv = NULL;
+ int rv, ret, task_irq = 0;
+ int mwdma_mask = 0, udma_mask = 0;
+ const __be32 *prop;
+ int proplen;
+ struct bcom_task *dmatsk = NULL;
/* Get ipb frequency */
ipb_freq = mpc52xx_find_ipb_freq(op->node);
if (!ipb_freq) {
- printk(KERN_ERR DRV_NAME ": "
- "Unable to find IPB Bus frequency\n" );
+ dev_err(&op->dev, "could not determine IPB bus frequency\n");
return -ENODEV;
}
- /* Get IRQ and register */
+ /* Get device base address from device tree, request the region
+ * and ioremap it. */
rv = of_address_to_resource(op->node, 0, &res_mem);
if (rv) {
- printk(KERN_ERR DRV_NAME ": "
- "Error while parsing device node resource\n" );
+ dev_err(&op->dev, "could not determine device base address\n");
return rv;
}
- ata_irq = irq_of_parse_and_map(op->node, 0);
- if (ata_irq == NO_IRQ) {
- printk(KERN_ERR DRV_NAME ": "
- "Error while mapping the irq\n");
- return -EINVAL;
- }
-
- /* Request mem region */
if (!devm_request_mem_region(&op->dev, res_mem.start,
- sizeof(struct mpc52xx_ata), DRV_NAME)) {
- printk(KERN_ERR DRV_NAME ": "
- "Error while requesting mem region\n");
- rv = -EBUSY;
- goto err;
+ sizeof(*ata_regs), DRV_NAME)) {
+ dev_err(&op->dev, "error requesting register region\n");
+ return -EBUSY;
}
- /* Remap registers */
- ata_regs = devm_ioremap(&op->dev, res_mem.start,
- sizeof(struct mpc52xx_ata));
+ ata_regs = devm_ioremap(&op->dev, res_mem.start, sizeof(*ata_regs));
if (!ata_regs) {
- printk(KERN_ERR DRV_NAME ": "
- "Error while mapping register set\n");
+ dev_err(&op->dev, "error mapping device registers\n");
rv = -ENOMEM;
goto err;
}
+ /*
+ * By default, all DMA modes are disabled for the MPC5200. Some
+ * boards don't have the required signals routed to make DMA work.
+ * Also, the MPC5200B has a silicon bug that causes data corruption
+ * with UDMA if it is used at the same time as the LocalPlus bus.
+ *
+ * Instead of trying to guess what modes are usable, check the
+ * ATA device tree node to find out what DMA modes work on the board.
+ * UDMA/MWDMA modes can also be forced by adding "libata.force=<mode>"
+ * to the kernel boot parameters.
+ *
+ * The MPC5200 ATA controller supports MWDMA modes 0, 1 and 2 and
+ * UDMA modes 0, 1 and 2.
+ */
+ prop = of_get_property(op->node, "mwdma-mode", &proplen);
+ if ((prop) && (proplen >= 4))
+ mwdma_mask = 0x7 & ((1 << (*prop + 1)) - 1);
+ prop = of_get_property(op->node, "udma-mode", &proplen);
+ if ((prop) && (proplen >= 4))
+ udma_mask = 0x7 & ((1 << (*prop + 1)) - 1);
+
+ ata_irq = irq_of_parse_and_map(op->node, 0);
+ if (ata_irq == NO_IRQ) {
+ dev_err(&op->dev, "error mapping irq\n");
+ return -EINVAL;
+ }
+
/* Prepare our private structure */
- priv = devm_kzalloc(&op->dev, sizeof(struct mpc52xx_ata_priv),
- GFP_ATOMIC);
+ priv = devm_kzalloc(&op->dev, sizeof(*priv), GFP_ATOMIC);
if (!priv) {
- printk(KERN_ERR DRV_NAME ": "
- "Error while allocating private structure\n");
+ dev_err(&op->dev, "error allocating private structure\n");
rv = -ENOMEM;
goto err;
}
priv->ipb_period = 1000000000 / (ipb_freq / 1000);
priv->ata_regs = ata_regs;
+ priv->ata_regs_pa = res_mem.start;
priv->ata_irq = ata_irq;
priv->csel = -1;
+ priv->mpc52xx_ata_dma_last_write = -1;
+
+ if (ipb_freq/1000000 == 66) {
+ priv->mdmaspec = mdmaspec66;
+ priv->udmaspec = udmaspec66;
+ } else {
+ priv->mdmaspec = mdmaspec132;
+ priv->udmaspec = udmaspec132;
+ }
+
+ /* Allocate a BestComm task for DMA */
+ dmatsk = bcom_ata_init(MAX_DMA_BUFFERS, MAX_DMA_BUFFER_SIZE);
+ if (!dmatsk) {
+ dev_err(&op->dev, "bestcomm initialization failed\n");
+ rv = -ENOMEM;
+ goto err;
+ }
+
+ task_irq = bcom_get_task_irq(dmatsk);
+ ret = request_irq(task_irq, &mpc52xx_ata_task_irq, IRQF_DISABLED,
+ "ATA task", priv);
+ if (ret) {
+ dev_err(&op->dev, "error requesting DMA IRQ\n");
+ goto err;
+ }
+ priv->dmatsk = dmatsk;
/* Init the hw */
rv = mpc52xx_ata_hw_init(priv);
if (rv) {
- printk(KERN_ERR DRV_NAME ": Error during HW init\n");
+ dev_err(&op->dev, "error initializing hardware\n");
goto err;
}
/* Register ourselves to libata */
- rv = mpc52xx_ata_init_one(&op->dev, priv, res_mem.start);
+ rv = mpc52xx_ata_init_one(&op->dev, priv, res_mem.start,
+ mwdma_mask, udma_mask);
if (rv) {
- printk(KERN_ERR DRV_NAME ": "
- "Error while registering to ATA layer\n");
- return rv;
+ dev_err(&op->dev, "error registering with ATA layer\n");
+ goto err;
}
- /* Done */
return 0;
- /* Error path */
-err:
- irq_dispose_mapping(ata_irq);
+ err:
+ devm_release_mem_region(&op->dev, res_mem.start, sizeof(*ata_regs));
+ if (ata_irq)
+ irq_dispose_mapping(ata_irq);
+ if (task_irq)
+ irq_dispose_mapping(task_irq);
+ if (dmatsk)
+ bcom_ata_release(dmatsk);
+ if (ata_regs)
+ devm_iounmap(&op->dev, ata_regs);
+ if (priv)
+ devm_kfree(&op->dev, priv);
return rv;
}
@@ -420,10 +824,23 @@ static int
mpc52xx_ata_remove(struct of_device *op)
{
struct mpc52xx_ata_priv *priv;
+ int task_irq;
+ /* Deregister the ATA interface */
priv = mpc52xx_ata_remove_one(&op->dev);
+
+ /* Clean up DMA */
+ task_irq = bcom_get_task_irq(priv->dmatsk);
+ irq_dispose_mapping(task_irq);
+ bcom_ata_release(priv->dmatsk);
irq_dispose_mapping(priv->ata_irq);
+ /* Clear up IO allocations */
+ devm_iounmap(&op->dev, priv->ata_regs);
+ devm_release_mem_region(&op->dev, priv->ata_regs_pa,
+ sizeof(*priv->ata_regs));
+ devm_kfree(&op->dev, priv);
+
return 0;
}
@@ -447,7 +864,7 @@ mpc52xx_ata_resume(struct of_device *op)
rv = mpc52xx_ata_hw_init(priv);
if (rv) {
- printk(KERN_ERR DRV_NAME ": Error during HW init\n");
+ dev_err(host->dev, "error initializing hardware\n");
return rv;
}
@@ -507,5 +924,4 @@ MODULE_AUTHOR("Sylvain Munaut <tnt@246tNt.com>");
MODULE_DESCRIPTION("Freescale MPC52xx IDE/ATA libata driver");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(of, mpc52xx_ata_of_match);
-MODULE_VERSION(DRV_VERSION);
diff --git a/drivers/ata/pata_oldpiix.c b/drivers/ata/pata_oldpiix.c
index c0dbc46a348..2c1a91c40c1 100644
--- a/drivers/ata/pata_oldpiix.c
+++ b/drivers/ata/pata_oldpiix.c
@@ -116,7 +116,6 @@ static void oldpiix_set_piomode (struct ata_port *ap, struct ata_device *adev)
* oldpiix_set_dmamode - Initialize host controller PATA DMA timings
* @ap: Port whose timings we are configuring
* @adev: Device to program
- * @isich: True if the device is an ICH and has IOCFG registers
*
* Set MWDMA mode for device, in host controller PCI config space.
*
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c
index 0e1c2c1134d..e94efccaa48 100644
--- a/drivers/ata/pata_pdc2027x.c
+++ b/drivers/ata/pata_pdc2027x.c
@@ -281,7 +281,6 @@ static unsigned long pdc2027x_mode_filter(struct ata_device *adev, unsigned long
* pdc2027x_set_piomode - Initialize host controller PATA PIO timings
* @ap: Port to configure
* @adev: um
- * @pio: PIO mode, 0 - 4
*
* Set PIO mode for device.
*
@@ -326,7 +325,6 @@ static void pdc2027x_set_piomode(struct ata_port *ap, struct ata_device *adev)
* pdc2027x_set_dmamode - Initialize host controller PATA UDMA timings
* @ap: Port to configure
* @adev: um
- * @udma: udma mode, XFER_UDMA_0 to XFER_UDMA_6
*
* Set UDMA mode for device.
*
@@ -406,23 +404,20 @@ static int pdc2027x_set_mode(struct ata_link *link, struct ata_device **r_failed
if (rc < 0)
return rc;
- ata_link_for_each_dev(dev, link) {
- if (ata_dev_enabled(dev)) {
+ ata_for_each_dev(dev, link, ENABLED) {
+ pdc2027x_set_piomode(ap, dev);
- pdc2027x_set_piomode(ap, dev);
+ /*
+ * Enable prefetch if the device support PIO only.
+ */
+ if (dev->xfer_shift == ATA_SHIFT_PIO) {
+ u32 ctcr1 = ioread32(dev_mmio(ap, dev, PDC_CTCR1));
+ ctcr1 |= (1 << 25);
+ iowrite32(ctcr1, dev_mmio(ap, dev, PDC_CTCR1));
- /*
- * Enable prefetch if the device support PIO only.
- */
- if (dev->xfer_shift == ATA_SHIFT_PIO) {
- u32 ctcr1 = ioread32(dev_mmio(ap, dev, PDC_CTCR1));
- ctcr1 |= (1 << 25);
- iowrite32(ctcr1, dev_mmio(ap, dev, PDC_CTCR1));
-
- PDPRINTK("Turn on prefetch\n");
- } else {
- pdc2027x_set_dmamode(ap, dev);
- }
+ PDPRINTK("Turn on prefetch\n");
+ } else {
+ pdc2027x_set_dmamode(ap, dev);
}
}
return 0;
diff --git a/drivers/ata/pata_platform.c b/drivers/ata/pata_platform.c
index 77e4e3b17f5..6afa07a3764 100644
--- a/drivers/ata/pata_platform.c
+++ b/drivers/ata/pata_platform.c
@@ -34,14 +34,12 @@ static int pata_platform_set_mode(struct ata_link *link, struct ata_device **unu
{
struct ata_device *dev;
- ata_link_for_each_dev(dev, link) {
- if (ata_dev_enabled(dev)) {
- /* We don't really care */
- dev->pio_mode = dev->xfer_mode = XFER_PIO_0;
- dev->xfer_shift = ATA_SHIFT_PIO;
- dev->flags |= ATA_DFLAG_PIO;
- ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
- }
+ ata_for_each_dev(dev, link, ENABLED) {
+ /* We don't really care */
+ dev->pio_mode = dev->xfer_mode = XFER_PIO_0;
+ dev->xfer_shift = ATA_SHIFT_PIO;
+ dev->flags |= ATA_DFLAG_PIO;
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
}
return 0;
}
diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c
index 0b0aa452de1..695d44ae52c 100644
--- a/drivers/ata/pata_radisys.c
+++ b/drivers/ata/pata_radisys.c
@@ -81,7 +81,6 @@ static void radisys_set_piomode (struct ata_port *ap, struct ata_device *adev)
* radisys_set_dmamode - Initialize host controller PATA DMA timings
* @ap: Port whose timings we are configuring
* @adev: Device to program
- * @isich: True if the device is an ICH and has IOCFG registers
*
* Set MWDMA mode for device, in host controller PCI config space.
*
diff --git a/drivers/ata/pata_rz1000.c b/drivers/ata/pata_rz1000.c
index 7dfd1f3f6f3..46d6bc1bf1e 100644
--- a/drivers/ata/pata_rz1000.c
+++ b/drivers/ata/pata_rz1000.c
@@ -38,15 +38,13 @@ static int rz1000_set_mode(struct ata_link *link, struct ata_device **unused)
{
struct ata_device *dev;
- ata_link_for_each_dev(dev, link) {
- if (ata_dev_enabled(dev)) {
- /* We don't really care */
- dev->pio_mode = XFER_PIO_0;
- dev->xfer_mode = XFER_PIO_0;
- dev->xfer_shift = ATA_SHIFT_PIO;
- dev->flags |= ATA_DFLAG_PIO;
- ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
- }
+ ata_for_each_dev(dev, link, ENABLED) {
+ /* We don't really care */
+ dev->pio_mode = XFER_PIO_0;
+ dev->xfer_mode = XFER_PIO_0;
+ dev->xfer_shift = ATA_SHIFT_PIO;
+ dev->flags |= ATA_DFLAG_PIO;
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
}
return 0;
}
diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c
index cf3707e516a..d447f1cb46e 100644
--- a/drivers/ata/pata_scc.c
+++ b/drivers/ata/pata_scc.c
@@ -210,7 +210,6 @@ static void scc_set_piomode (struct ata_port *ap, struct ata_device *adev)
* scc_set_dmamode - Initialize host controller PATA DMA timings
* @ap: Port whose timings we are configuring
* @adev: um
- * @udma: udma mode, 0 - 6
*
* Set UDMA mode for device.
*
diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
index 72e41c9f969..8d2fd9dd40c 100644
--- a/drivers/ata/pata_serverworks.c
+++ b/drivers/ata/pata_serverworks.c
@@ -138,7 +138,6 @@ static struct sv_cable_table cable_detect[] = {
/**
* serverworks_cable_detect - cable detection
* @ap: ATA port
- * @deadline: deadline jiffies for the operation
*
* Perform cable detection according to the device and subvendor
* identifications
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index e4be55e047f..27ceb42a774 100644
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -112,7 +112,6 @@ static int sis_133_cable_detect(struct ata_port *ap)
/**
* sis_66_cable_detect - check for 40/80 pin
* @ap: Port
- * @deadline: deadline jiffies for the operation
*
* Perform cable detection on the UDMA66, UDMA100 and early UDMA133
* SiS IDE controllers.
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 2b24ae58b52..86918634a4c 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1836,7 +1836,6 @@ static void mv_unexpected_intr(struct ata_port *ap, int edma_was_enabled)
/**
* mv_err_intr - Handle error interrupts on the port
* @ap: ATA channel to manipulate
- * @qc: affected command (non-NCQ), or NULL
*
* Most cases require a full reset of the chip's state machine,
* which also performs a COMRESET.
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index 031d7b7dee3..564c142b03b 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -46,7 +46,9 @@
#include <linux/libata.h>
#define DRV_NAME "sata_sil"
-#define DRV_VERSION "2.3"
+#define DRV_VERSION "2.4"
+
+#define SIL_DMA_BOUNDARY 0x7fffffffUL
enum {
SIL_MMIO_BAR = 5,
@@ -118,6 +120,10 @@ static void sil_dev_config(struct ata_device *dev);
static int sil_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
static int sil_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
static int sil_set_mode(struct ata_link *link, struct ata_device **r_failed);
+static void sil_qc_prep(struct ata_queued_cmd *qc);
+static void sil_bmdma_setup(struct ata_queued_cmd *qc);
+static void sil_bmdma_start(struct ata_queued_cmd *qc);
+static void sil_bmdma_stop(struct ata_queued_cmd *qc);
static void sil_freeze(struct ata_port *ap);
static void sil_thaw(struct ata_port *ap);
@@ -167,13 +173,22 @@ static struct pci_driver sil_pci_driver = {
};
static struct scsi_host_template sil_sht = {
- ATA_BMDMA_SHT(DRV_NAME),
+ ATA_BASE_SHT(DRV_NAME),
+ /** These controllers support Large Block Transfer which allows
+ transfer chunks up to 2GB and which cross 64KB boundaries,
+ therefore the DMA limits are more relaxed than standard ATA SFF. */
+ .dma_boundary = SIL_DMA_BOUNDARY,
+ .sg_tablesize = ATA_MAX_PRD
};
static struct ata_port_operations sil_ops = {
.inherits = &ata_bmdma_port_ops,
.dev_config = sil_dev_config,
.set_mode = sil_set_mode,
+ .bmdma_setup = sil_bmdma_setup,
+ .bmdma_start = sil_bmdma_start,
+ .bmdma_stop = sil_bmdma_stop,
+ .qc_prep = sil_qc_prep,
.freeze = sil_freeze,
.thaw = sil_thaw,
.scr_read = sil_scr_read,
@@ -249,6 +264,83 @@ module_param(slow_down, int, 0444);
MODULE_PARM_DESC(slow_down, "Sledgehammer used to work around random problems, by limiting commands to 15 sectors (0=off, 1=on)");
+static void sil_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
+ void __iomem *bmdma2 = mmio_base + sil_port[ap->port_no].bmdma2;
+
+ /* clear start/stop bit - can safely always write 0 */
+ iowrite8(0, bmdma2);
+
+ /* one-PIO-cycle guaranteed wait, per spec, for HDMA1:0 transition */
+ ata_sff_dma_pause(ap);
+}
+
+static void sil_bmdma_setup(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ void __iomem *bmdma = ap->ioaddr.bmdma_addr;
+
+ /* load PRD table addr. */
+ iowrite32(ap->prd_dma, bmdma + ATA_DMA_TABLE_OFS);
+
+ /* issue r/w command */
+ ap->ops->sff_exec_command(ap, &qc->tf);
+}
+
+static void sil_bmdma_start(struct ata_queued_cmd *qc)
+{
+ unsigned int rw = (qc->tf.flags & ATA_TFLAG_WRITE);
+ struct ata_port *ap = qc->ap;
+ void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
+ void __iomem *bmdma2 = mmio_base + sil_port[ap->port_no].bmdma2;
+ u8 dmactl = ATA_DMA_START;
+
+ /* set transfer direction, start host DMA transaction
+ Note: For Large Block Transfer to work, the DMA must be started
+ using the bmdma2 register. */
+ if (!rw)
+ dmactl |= ATA_DMA_WR;
+ iowrite8(dmactl, bmdma2);
+}
+
+/* The way God intended PCI IDE scatter/gather lists to look and behave... */
+static void sil_fill_sg(struct ata_queued_cmd *qc)
+{
+ struct scatterlist *sg;
+ struct ata_port *ap = qc->ap;
+ struct ata_prd *prd, *last_prd = NULL;
+ unsigned int si;
+
+ prd = &ap->prd[0];
+ for_each_sg(qc->sg, sg, qc->n_elem, si) {
+ /* Note h/w doesn't support 64-bit, so we unconditionally
+ * truncate dma_addr_t to u32.
+ */
+ u32 addr = (u32) sg_dma_address(sg);
+ u32 sg_len = sg_dma_len(sg);
+
+ prd->addr = cpu_to_le32(addr);
+ prd->flags_len = cpu_to_le32(sg_len);
+ VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", pi, addr, sg_len);
+
+ last_prd = prd;
+ prd++;
+ }
+
+ if (likely(last_prd))
+ last_prd->flags_len |= cpu_to_le32(ATA_PRD_EOT);
+}
+
+static void sil_qc_prep(struct ata_queued_cmd *qc)
+{
+ if (!(qc->flags & ATA_QCFLAG_DMAMAP))
+ return;
+
+ sil_fill_sg(qc);
+}
+
static unsigned char sil_get_device_cache_line(struct pci_dev *pdev)
{
u8 cache_line = 0;
@@ -278,7 +370,7 @@ static int sil_set_mode(struct ata_link *link, struct ata_device **r_failed)
if (rc)
return rc;
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ALL) {
if (!ata_dev_enabled(dev))
dev_mode[dev->devno] = 0; /* PIO0/1/2 */
else if (dev->flags & ATA_DFLAG_PIO)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-14 03:16:58 +0000