11 files changed, 64 insertions, 25 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index b1a257746a19..a06f5d6375a8 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -575,7 +575,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
         { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
 
         /* AMD */
-        { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD SB900 */
+        { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
         /* AMD is using RAID class only for ahci controllers */
         { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
           PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
@@ -605,6 +605,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
         { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_yesncq },     /* MCP67 */
         { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_yesncq },     /* MCP67 */
         { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_yesncq },     /* Linux ID */
         { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_yesncq },     /* MCP73 */
         { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_yesncq },     /* MCP73 */
         { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_yesncq },     /* MCP73 */
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index b525a0981348..d7f0f1b1ae3e 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -5028,12 +5028,14 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
                         qc->flags |= ATA_QCFLAG_FAILED;
 
                 if (unlikely(qc->flags & ATA_QCFLAG_FAILED)) {
-                        if (!ata_tag_internal(qc->tag)) {
-                                /* always fill result TF for failed qc */
-                                fill_result_tf(qc);
+                        /* always fill result TF for failed qc */
+                        fill_result_tf(qc);
+
+                        if (!ata_tag_internal(qc->tag))
                                 ata_qc_schedule_eh(qc);
-                                return;
-                        }
+                        else
+                                __ata_qc_complete(qc);
+                        return;
                 }
 
                 WARN_ON_ONCE(ap->pflags & ATA_PFLAG_FROZEN);
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 0a97822da211..bba2ae5df1c2 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2981,12 +2981,14 @@ static int ata_eh_revalidate_and_attach(struct ata_link *link,
          * device detection messages backwards.
          */
         ata_for_each_dev(dev, link, ALL) {
-                if (!(new_mask & (1 << dev->devno)) ||
-                    dev->class == ATA_DEV_PMP)
+                if (!(new_mask & (1 << dev->devno)))
                         continue;
 
                 dev->class = ehc->classes[dev->devno];
 
+                if (dev->class == ATA_DEV_PMP)
+                        continue;
+
                 ehc->i.flags |= ATA_EHI_PRINTINFO;
                 rc = ata_dev_configure(dev);
                 ehc->i.flags &= ~ATA_EHI_PRINTINFO;
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index aa4b3f6ae771..ae4454d4e955 100644
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -246,7 +246,7 @@ static const struct pci_device_id atiixp[] = {
         { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP400_IDE), },
         { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP600_IDE), },
         { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP700_IDE), },
-        { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_SB900_IDE), },
+        { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_HUDSON2_IDE), },
 
         { },
 };
diff --git a/drivers/ata/pata_sc1200.c b/drivers/ata/pata_sc1200.c
index f49814d6fd2e..3bbed8322ecf 100644
--- a/drivers/ata/pata_sc1200.c
+++ b/drivers/ata/pata_sc1200.c
@@ -235,8 +235,7 @@ static int sc1200_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                 .udma_mask = ATA_UDMA2,
                 .port_ops = &sc1200_port_ops
         };
-        /* Can't enable port 2 yet, see top comments */
-        const struct ata_port_info *ppi[] = { &info, };
+        const struct ata_port_info *ppi[] = { &info, NULL };
 
         return ata_pci_sff_init_one(dev, ppi, &sc1200_sht, NULL);
 }
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 45657cacec43..88984b803d6d 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -111,7 +111,7 @@ static const struct via_isa_bridge {
         { "vt8251",     PCI_DEVICE_ID_VIA_8251,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
         { "cx700",      PCI_DEVICE_ID_VIA_CX700,    0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_SATA_PATA },
         { "vt6410",     PCI_DEVICE_ID_VIA_6410,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES },
-        { "vt6415",     PCI_DEVICE_ID_VIA_6415,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES },
+        { "vt6415",     PCI_DEVICE_ID_VIA_6415,     0x00, 0xff, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES },
         { "vt8237a",    PCI_DEVICE_ID_VIA_8237A,    0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
         { "vt8237",     PCI_DEVICE_ID_VIA_8237,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
         { "vt8235",     PCI_DEVICE_ID_VIA_8235,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 17f9ff9067a2..6f5093b7c8c5 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1382,6 +1382,25 @@ static int mv_qc_defer(struct ata_queued_cmd *qc)
          */
         if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH)
                 return ATA_DEFER_PORT;
+
+        /* PIO commands need exclusive link: no other commands [DMA or PIO]
+         * can run concurrently.
+         * set excl_link when we want to send a PIO command in DMA mode
+         * or a non-NCQ command in NCQ mode.
+         * When we receive a command from that link, and there are no
+         * outstanding commands, mark a flag to clear excl_link and let
+         * the command go through.
+         */
+        if (unlikely(ap->excl_link)) {
+                if (link == ap->excl_link) {
+                        if (ap->nr_active_links)
+                                return ATA_DEFER_PORT;
+                        qc->flags |= ATA_QCFLAG_CLEAR_EXCL;
+                        return 0;
+                } else
+                        return ATA_DEFER_PORT;
+        }
+
         /*
          * If the port is completely idle, then allow the new qc.
          */
@@ -1395,8 +1414,14 @@ static int mv_qc_defer(struct ata_queued_cmd *qc)
          * doesn't allow it.
          */
         if ((pp->pp_flags & MV_PP_FLAG_EDMA_EN) &&
-            (pp->pp_flags & MV_PP_FLAG_NCQ_EN) && ata_is_ncq(qc->tf.protocol))
-                return 0;
+            (pp->pp_flags & MV_PP_FLAG_NCQ_EN)) {
+                if (ata_is_ncq(qc->tf.protocol))
+                        return 0;
+                else {
+                        ap->excl_link = link;
+                        return ATA_DEFER_PORT;
+                }
+        }
 
         return ATA_DEFER_PORT;
 }
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 86a40582999c..1eb4e020eb5c 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -1594,9 +1594,21 @@ static int nv_hardreset(struct ata_link *link, unsigned int *class,
             !ata_dev_enabled(link->device))
                 sata_link_hardreset(link, sata_deb_timing_hotplug, deadline,
                                     NULL, NULL);
-        else if (!(ehc->i.flags & ATA_EHI_QUIET))
-                ata_link_printk(link, KERN_INFO,
-                                "nv: skipping hardreset on occupied port\n");
+        else {
+                const unsigned long *timing = sata_ehc_deb_timing(ehc);
+                int rc;
+
+                if (!(ehc->i.flags & ATA_EHI_QUIET))
+                        ata_link_printk(link, KERN_INFO, "nv: skipping "
+                                        "hardreset on occupied port\n");
+
+                /* make sure the link is online */
+                rc = sata_link_resume(link, timing, deadline);
+                /* whine about phy resume failure but proceed */
+                if (rc && rc != -EOPNOTSUPP)
+                        ata_link_printk(link, KERN_WARNING, "failed to resume "
+                                        "link (errno=%d)\n", rc);
+        }
 
         /* device signature acquisition is unreliable */
         return -EAGAIN;
diff --git a/drivers/ide/atiixp.c b/drivers/ide/atiixp.c
index 6396c3ad3252..837322b10a4c 100644
--- a/drivers/ide/atiixp.c
+++ b/drivers/ide/atiixp.c
@@ -177,7 +177,7 @@ static const struct pci_device_id atiixp_pci_tbl[] = {
         { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP400_IDE), 0 },
         { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP600_IDE), 1 },
         { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP700_IDE), 0 },
-        { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_SB900_IDE), 0 },
+        { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_HUDSON2_IDE), 0 },
         { 0, },
 };
 MODULE_DEVICE_TABLE(pci, atiixp_pci_tbl);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index a790b1771f9f..245d2cdb4765 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1009,7 +1009,7 @@ DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82454NX,
 
 static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
 {
-        /* set SBX00 SATA in IDE mode to AHCI mode */
+        /* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */
         u8 tmp;
 
         pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
@@ -1028,8 +1028,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk
 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_SB900_SATA_IDE, quirk_amd_ide_mode);
-DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_SB900_SATA_IDE, quirk_amd_ide_mode);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
+DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
 
 /*
  *      Serverworks CSB5 IDE does not fully support native mode
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index f490e7a7307a..86257a412732 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -379,9 +379,6 @@
 #define PCI_DEVICE_ID_ATI_IXP600_IDE    0x438c
 #define PCI_DEVICE_ID_ATI_IXP700_SATA   0x4390
 #define PCI_DEVICE_ID_ATI_IXP700_IDE    0x439c
-/* AMD SB Chipset */
-#define PCI_DEVICE_ID_AMD_SB900_IDE      0x780c
-#define PCI_DEVICE_ID_AMD_SB900_SATA_IDE 0x7800
 
 #define PCI_VENDOR_ID_VLSI              0x1004
 #define PCI_DEVICE_ID_VLSI_82C592       0x0005
@@ -553,9 +550,10 @@
 #define PCI_DEVICE_ID_AMD_CS5536_UDC    0x2096
 #define PCI_DEVICE_ID_AMD_CS5536_UOC    0x2097
 #define PCI_DEVICE_ID_AMD_CS5536_IDE    0x209A
-
 #define PCI_DEVICE_ID_AMD_LX_VIDEO  0x2081
 #define PCI_DEVICE_ID_AMD_LX_AES    0x2082
+#define PCI_DEVICE_ID_AMD_HUDSON2_IDE           0x780c
+#define PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE      0x7800
 
 #define PCI_VENDOR_ID_TRIDENT           0x1023
 #define PCI_DEVICE_ID_TRIDENT_4DWAVE_DX 0x2000