MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141

pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040

stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch

mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage:
From: Andy Green <andy@openmoko.com>
fix-stray-endmenu.patch

Signed-off-by: Andy Green <andy@openmoko.com>

1 files changed, 371 insertions, 174 deletions

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 622350d9b2e..88c242856da 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -56,6 +56,7 @@
 #include <linux/workqueue.h>
 #include <linux/scatterlist.h>
 #include <linux/io.h>
+#include <linux/async.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_host.h>
@@ -163,43 +164,119 @@ 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
  *
@@ -612,7 +689,7 @@ u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev)
 		if (tf->flags & ATA_TFLAG_LBA48) {
 			block |= (u64)tf->hob_lbah << 40;
 			block |= (u64)tf->hob_lbam << 32;
-			block |= tf->hob_lbal << 24;
+			block |= (u64)tf->hob_lbal << 24;
 		} else
 			block |= (tf->device & 0xf) << 24;
 
@@ -930,6 +1007,7 @@ static const char *sata_spd_string(unsigned int spd)
 	static const char * const spd_str[] = {
 		"1.5 Gbps",
 		"3.0 Gbps",
+		"6.0 Gbps",
 	};
 
 	if (spd == 0 || (spd - 1) >= ARRAY_SIZE(spd_str))
@@ -1107,8 +1185,8 @@ 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);
 		}
 	}
@@ -1712,6 +1790,8 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
 	else
 		tag = 0;
 
+	if (test_and_set_bit(tag, &ap->qc_allocated))
+		BUG();
 	qc = __ata_qc_from_tag(ap, tag);
 
 	qc->tag = tag;
@@ -1921,6 +2001,10 @@ unsigned int ata_pio_need_iordy(const struct ata_device *adev)
 	   as the caller should know this */
 	if (adev->link->ap->flags & ATA_FLAG_NO_IORDY)
 		return 0;
+	/* CF spec. r4.1 Table 22 says no iordy on PIO5 and PIO6.  */
+	if (ata_id_is_cfa(adev->id)
+	    && (adev->pio_mode == XFER_PIO_5 || adev->pio_mode == XFER_PIO_6))
+		return 0;
 	/* PIO3 and higher it is mandatory */
 	if (adev->pio_mode > XFER_PIO_2)
 		return 1;
@@ -2490,6 +2574,13 @@ int ata_dev_configure(struct ata_device *dev)
 		}
 	}
 
+	if ((dev->horkage & ATA_HORKAGE_FIRMWARE_WARN) && print_info) {
+		ata_dev_printk(dev, KERN_WARNING, "WARNING: device requires "
+			       "firmware update to be fully functional.\n");
+		ata_dev_printk(dev, KERN_WARNING, "         contact the vendor "
+			       "or visit http://ata.wiki.kernel.org.\n");
+	}
+
 	return 0;
 
 err_out_nosup:
@@ -2585,11 +2676,11 @@ 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)
@@ -2611,7 +2702,7 @@ 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;
@@ -2627,7 +2718,7 @@ 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];
 
@@ -2644,24 +2735,19 @@ 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;
@@ -2674,9 +2760,8 @@ 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);
@@ -2944,33 +3029,33 @@ int sata_set_spd(struct ata_link *link)
  */
 
 static const struct ata_timing ata_timing[] = {
-/*	{ XFER_PIO_SLOW, 120, 290, 240, 960, 290, 240, 960,   0 }, */
-	{ XFER_PIO_0,     70, 290, 240, 600, 165, 150, 600,   0 },
-	{ XFER_PIO_1,     50, 290,  93, 383, 125, 100, 383,   0 },
-	{ XFER_PIO_2,     30, 290,  40, 330, 100,  90, 240,   0 },
-	{ XFER_PIO_3,     30,  80,  70, 180,  80,  70, 180,   0 },
-	{ XFER_PIO_4,     25,  70,  25, 120,  70,  25, 120,   0 },
-	{ XFER_PIO_5,     15,  65,  25, 100,  65,  25, 100,   0 },
-	{ XFER_PIO_6,     10,  55,  20,  80,  55,  20,  80,   0 },
-
-	{ XFER_SW_DMA_0, 120,   0,   0,   0, 480, 480, 960,   0 },
-	{ XFER_SW_DMA_1,  90,   0,   0,   0, 240, 240, 480,   0 },
-	{ XFER_SW_DMA_2,  60,   0,   0,   0, 120, 120, 240,   0 },
-
-	{ XFER_MW_DMA_0,  60,   0,   0,   0, 215, 215, 480,   0 },
-	{ XFER_MW_DMA_1,  45,   0,   0,   0,  80,  50, 150,   0 },
-	{ XFER_MW_DMA_2,  25,   0,   0,   0,  70,  25, 120,   0 },
-	{ XFER_MW_DMA_3,  25,   0,   0,   0,  65,  25, 100,   0 },
-	{ XFER_MW_DMA_4,  25,   0,   0,   0,  55,  20,  80,   0 },
-
-/*	{ XFER_UDMA_SLOW,  0,   0,   0,   0,   0,   0,   0, 150 }, */
-	{ XFER_UDMA_0,     0,   0,   0,   0,   0,   0,   0, 120 },
-	{ XFER_UDMA_1,     0,   0,   0,   0,   0,   0,   0,  80 },
-	{ XFER_UDMA_2,     0,   0,   0,   0,   0,   0,   0,  60 },
-	{ XFER_UDMA_3,     0,   0,   0,   0,   0,   0,   0,  45 },
-	{ XFER_UDMA_4,     0,   0,   0,   0,   0,   0,   0,  30 },
-	{ XFER_UDMA_5,     0,   0,   0,   0,   0,   0,   0,  20 },
-	{ XFER_UDMA_6,     0,   0,   0,   0,   0,   0,   0,  15 },
+/*	{ XFER_PIO_SLOW, 120, 290, 240, 960, 290, 240, 0,  960,   0 }, */
+	{ XFER_PIO_0,     70, 290, 240, 600, 165, 150, 0,  600,   0 },
+	{ XFER_PIO_1,     50, 290,  93, 383, 125, 100, 0,  383,   0 },
+	{ XFER_PIO_2,     30, 290,  40, 330, 100,  90, 0,  240,   0 },
+	{ XFER_PIO_3,     30,  80,  70, 180,  80,  70, 0,  180,   0 },
+	{ XFER_PIO_4,     25,  70,  25, 120,  70,  25, 0,  120,   0 },
+	{ XFER_PIO_5,     15,  65,  25, 100,  65,  25, 0,  100,   0 },
+	{ XFER_PIO_6,     10,  55,  20,  80,  55,  20, 0,   80,   0 },
+
+	{ XFER_SW_DMA_0, 120,   0,   0,   0, 480, 480, 50, 960,   0 },
+	{ XFER_SW_DMA_1,  90,   0,   0,   0, 240, 240, 30, 480,   0 },
+	{ XFER_SW_DMA_2,  60,   0,   0,   0, 120, 120, 20, 240,   0 },
+
+	{ XFER_MW_DMA_0,  60,   0,   0,   0, 215, 215, 20, 480,   0 },
+	{ XFER_MW_DMA_1,  45,   0,   0,   0,  80,  50, 5,  150,   0 },
+	{ XFER_MW_DMA_2,  25,   0,   0,   0,  70,  25, 5,  120,   0 },
+	{ XFER_MW_DMA_3,  25,   0,   0,   0,  65,  25, 5,  100,   0 },
+	{ XFER_MW_DMA_4,  25,   0,   0,   0,  55,  20, 5,   80,   0 },
+
+/*	{ XFER_UDMA_SLOW,  0,   0,   0,   0,   0,   0, 0,    0, 150 }, */
+	{ XFER_UDMA_0,     0,   0,   0,   0,   0,   0, 0,    0, 120 },
+	{ XFER_UDMA_1,     0,   0,   0,   0,   0,   0, 0,    0,  80 },
+	{ XFER_UDMA_2,     0,   0,   0,   0,   0,   0, 0,    0,  60 },
+	{ XFER_UDMA_3,     0,   0,   0,   0,   0,   0, 0,    0,  45 },
+	{ XFER_UDMA_4,     0,   0,   0,   0,   0,   0, 0,    0,  30 },
+	{ XFER_UDMA_5,     0,   0,   0,   0,   0,   0, 0,    0,  20 },
+	{ XFER_UDMA_6,     0,   0,   0,   0,   0,   0, 0,    0,  15 },
 
 	{ 0xFF }
 };
@@ -2980,14 +3065,15 @@ static const struct ata_timing ata_timing[] = {
 
 static void ata_timing_quantize(const struct ata_timing *t, struct ata_timing *q, int T, int UT)
 {
-	q->setup   = EZ(t->setup   * 1000,  T);
-	q->act8b   = EZ(t->act8b   * 1000,  T);
-	q->rec8b   = EZ(t->rec8b   * 1000,  T);
-	q->cyc8b   = EZ(t->cyc8b   * 1000,  T);
-	q->active  = EZ(t->active  * 1000,  T);
-	q->recover = EZ(t->recover * 1000,  T);
-	q->cycle   = EZ(t->cycle   * 1000,  T);
-	q->udma    = EZ(t->udma    * 1000, UT);
+	q->setup	= EZ(t->setup      * 1000,  T);
+	q->act8b	= EZ(t->act8b      * 1000,  T);
+	q->rec8b	= EZ(t->rec8b      * 1000,  T);
+	q->cyc8b	= EZ(t->cyc8b      * 1000,  T);
+	q->active	= EZ(t->active     * 1000,  T);
+	q->recover	= EZ(t->recover    * 1000,  T);
+	q->dmack_hold	= EZ(t->dmack_hold * 1000,  T);
+	q->cycle	= EZ(t->cycle      * 1000,  T);
+	q->udma		= EZ(t->udma       * 1000, UT);
 }
 
 void ata_timing_merge(const struct ata_timing *a, const struct ata_timing *b,
@@ -2999,6 +3085,7 @@ void ata_timing_merge(const struct ata_timing *a, const struct ata_timing *b,
 	if (what & ATA_TIMING_CYC8B  ) m->cyc8b   = max(a->cyc8b,   b->cyc8b);
 	if (what & ATA_TIMING_ACTIVE ) m->active  = max(a->active,  b->active);
 	if (what & ATA_TIMING_RECOVER) m->recover = max(a->recover, b->recover);
+	if (what & ATA_TIMING_DMACK_HOLD) m->dmack_hold = max(a->dmack_hold, b->dmack_hold);
 	if (what & ATA_TIMING_CYCLE  ) m->cycle   = max(a->cycle,   b->cycle);
 	if (what & ATA_TIMING_UDMA   ) m->udma    = max(a->udma,    b->udma);
 }
@@ -3322,13 +3409,10 @@ 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;
@@ -3357,10 +3441,7 @@ 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;
@@ -3374,8 +3455,8 @@ 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;
@@ -3385,11 +3466,7 @@ 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;
@@ -4039,6 +4116,74 @@ 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",	"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 },
+
+	{ "ST3320613AS",	"SD15",		ATA_HORKAGE_NONCQ |
+						ATA_HORKAGE_FIRMWARE_WARN },
+	{ "ST3320613AS",	"SD16",		ATA_HORKAGE_NONCQ |
+						ATA_HORKAGE_FIRMWARE_WARN },
+	{ "ST3320613AS",	"SD17",		ATA_HORKAGE_NONCQ |
+						ATA_HORKAGE_FIRMWARE_WARN },
+	{ "ST3320613AS",	"SD18",		ATA_HORKAGE_NONCQ |
+						ATA_HORKAGE_FIRMWARE_WARN },
+	{ "ST3320613AS",	"SD19",		ATA_HORKAGE_NONCQ |
+						ATA_HORKAGE_FIRMWARE_WARN },
 
 	/* Blacklist entries taken from Silicon Image 3124/3132
 	   Windows driver .inf file - also several Linux problem reports */
@@ -4187,9 +4332,9 @@ 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;
 		}
 	}
@@ -4413,7 +4558,7 @@ void ata_sg_clean(struct ata_queued_cmd *qc)
 	struct scatterlist *sg = qc->sg;
 	int dir = qc->dma_dir;
 
-	WARN_ON(sg == NULL);
+	WARN_ON_ONCE(sg == NULL);
 
 	VPRINTK("unmapping %u sg elements\n", qc->n_elem);
 
@@ -4563,28 +4708,54 @@ void swap_buf_le16(u16 *buf, unsigned int buf_words)
 }
 
 /**
- *	ata_qc_new_init - Request an available ATA command, and initialize it
+ *	ata_qc_new - Request an available ATA command, for queueing
+ *	@ap: Port associated with device @dev
  *	@dev: Device from whom we request an available command structure
- *	@tag: command tag
  *
  *	LOCKING:
  *	None.
  */
 
-struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev, int tag)
+static struct ata_queued_cmd *ata_qc_new(struct ata_port *ap)
 {
-	struct ata_port *ap = dev->link->ap;
-	struct ata_queued_cmd *qc;
+	struct ata_queued_cmd *qc = NULL;
+	unsigned int i;
 
+	/* no command while frozen */
 	if (unlikely(ap->pflags & ATA_PFLAG_FROZEN))
 		return NULL;
 
-	qc = __ata_qc_from_tag(ap, tag);
+	/* the last tag is reserved for internal command. */
+	for (i = 0; i < ATA_MAX_QUEUE - 1; i++)
+		if (!test_and_set_bit(i, &ap->qc_allocated)) {
+			qc = __ata_qc_from_tag(ap, i);
+			break;
+		}
+
+	if (qc)
+		qc->tag = i;
+
+	return qc;
+}
+
+/**
+ *	ata_qc_new_init - Request an available ATA command, and initialize it
+ *	@dev: Device from whom we request an available command structure
+ *
+ *	LOCKING:
+ *	None.
+ */
+
+struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev)
+{
+	struct ata_port *ap = dev->link->ap;
+	struct ata_queued_cmd *qc;
+
+	qc = ata_qc_new(ap);
 	if (qc) {
 		qc->scsicmd = NULL;
 		qc->ap = ap;
 		qc->dev = dev;
-		qc->tag = tag;
 
 		ata_qc_reinit(qc);
 	}
@@ -4592,13 +4763,38 @@ struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev, int tag)
 	return qc;
 }
 
+/**
+ *	ata_qc_free - free unused ata_queued_cmd
+ *	@qc: Command to complete
+ *
+ *	Designed to free unused ata_queued_cmd object
+ *	in case something prevents using it.
+ *
+ *	LOCKING:
+ *	spin_lock_irqsave(host lock)
+ */
+void ata_qc_free(struct ata_queued_cmd *qc)
+{
+	struct ata_port *ap = qc->ap;
+	unsigned int tag;
+
+	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+
+	qc->flags = 0;
+	tag = qc->tag;
+	if (likely(ata_tag_valid(tag))) {
+		qc->tag = ATA_TAG_POISON;
+		clear_bit(tag, &ap->qc_allocated);
+	}
+}
+
 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));
+	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+	WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));
 
 	if (likely(qc->flags & ATA_QCFLAG_DMAMAP))
 		ata_sg_clean(qc);
@@ -4684,7 +4880,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
 		struct ata_device *dev = qc->dev;
 		struct ata_eh_info *ehi = &dev->link->eh_info;
 
-		WARN_ON(ap->pflags & ATA_PFLAG_FROZEN);
+		WARN_ON_ONCE(ap->pflags & ATA_PFLAG_FROZEN);
 
 		if (unlikely(qc->err_mask))
 			qc->flags |= ATA_QCFLAG_FAILED;
@@ -4806,16 +5002,16 @@ void ata_qc_issue(struct ata_queued_cmd *qc)
 	 * check is skipped for old EH because it reuses active qc to
 	 * request ATAPI sense.
 	 */
-	WARN_ON(ap->ops->error_handler && ata_tag_valid(link->active_tag));
+	WARN_ON_ONCE(ap->ops->error_handler && ata_tag_valid(link->active_tag));
 
 	if (ata_is_ncq(prot)) {
-		WARN_ON(link->sactive & (1 << qc->tag));
+		WARN_ON_ONCE(link->sactive & (1 << qc->tag));
 
 		if (!link->sactive)
 			ap->nr_active_links++;
 		link->sactive |= 1 << qc->tag;
 	} else {
-		WARN_ON(link->sactive);
+		WARN_ON_ONCE(link->sactive);
 
 		ap->nr_active_links++;
 		link->active_tag = qc->tag;
@@ -5090,7 +5286,7 @@ 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;
 		}
@@ -5721,6 +5917,65 @@ void ata_host_init(struct ata_host *host, struct device *dev,
 	host->ops = ops;
 }
 
+
+static void async_port_probe(void *data, async_cookie_t cookie)
+{
+	int rc;
+	struct ata_port *ap = data;
+
+	/*
+	 * If we're not allowed to scan this host in parallel,
+	 * we need to wait until all previous scans have completed
+	 * before going further.
+	 * Jeff Garzik says this is only within a controller, so we
+	 * don't need to wait for port 0, only for later ports.
+	 */
+	if (!(ap->host->flags & ATA_HOST_PARALLEL_SCAN) && ap->port_no != 0)
+		async_synchronize_cookie(cookie);
+
+	/* probe */
+	if (ap->ops->error_handler) {
+		struct ata_eh_info *ehi = &ap->link.eh_info;
+		unsigned long flags;
+
+		ata_port_probe(ap);
+
+		/* kick EH for boot probing */
+		spin_lock_irqsave(ap->lock, flags);
+
+		ehi->probe_mask |= ATA_ALL_DEVICES;
+		ehi->action |= ATA_EH_RESET | ATA_EH_LPM;
+		ehi->flags |= ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET;
+
+		ap->pflags &= ~ATA_PFLAG_INITIALIZING;
+		ap->pflags |= ATA_PFLAG_LOADING;
+		ata_port_schedule_eh(ap);
+
+		spin_unlock_irqrestore(ap->lock, flags);
+
+		/* wait for EH to finish */
+		ata_port_wait_eh(ap);
+	} else {
+		DPRINTK("ata%u: bus probe begin\n", ap->print_id);
+		rc = ata_bus_probe(ap);
+		DPRINTK("ata%u: bus probe end\n", ap->print_id);
+
+		if (rc) {
+			/* FIXME: do something useful here?
+			 * Current libata behavior will
+			 * tear down everything when
+			 * the module is removed
+			 * or the h/w is unplugged.
+			 */
+		}
+	}
+
+	/* in order to keep device order, we need to synchronize at this point */
+	async_synchronize_cookie(cookie);
+
+	ata_scsi_scan_host(ap, 1);
+
+}
 /**
  *	ata_host_register - register initialized ATA host
  *	@host: ATA host to register
@@ -5800,52 +6055,9 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
 	DPRINTK("probe begin\n");
 	for (i = 0; i < host->n_ports; i++) {
 		struct ata_port *ap = host->ports[i];
-
-		/* probe */
-		if (ap->ops->error_handler) {
-			struct ata_eh_info *ehi = &ap->link.eh_info;
-			unsigned long flags;
-
-			ata_port_probe(ap);
-
-			/* kick EH for boot probing */
-			spin_lock_irqsave(ap->lock, flags);
-
-			ehi->probe_mask |= ATA_ALL_DEVICES;
-			ehi->action |= ATA_EH_RESET | ATA_EH_LPM;
-			ehi->flags |= ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET;
-
-			ap->pflags &= ~ATA_PFLAG_INITIALIZING;
-			ap->pflags |= ATA_PFLAG_LOADING;
-			ata_port_schedule_eh(ap);
-
-			spin_unlock_irqrestore(ap->lock, flags);
-
-			/* wait for EH to finish */
-			ata_port_wait_eh(ap);
-		} else {
-			DPRINTK("ata%u: bus probe begin\n", ap->print_id);
-			rc = ata_bus_probe(ap);
-			DPRINTK("ata%u: bus probe end\n", ap->print_id);
-
-			if (rc) {
-				/* FIXME: do something useful here?
-				 * Current libata behavior will
-				 * tear down everything when
-				 * the module is removed
-				 * or the h/w is unplugged.
-				 */
-			}
-		}
-	}
-
-	/* probes are done, now scan each port's disk(s) */
-	DPRINTK("host probe begin\n");
-	for (i = 0; i < host->n_ports; i++) {
-		struct ata_port *ap = host->ports[i];
-
-		ata_scsi_scan_host(ap, 1);
+		async_schedule(async_port_probe, ap);
 	}
+	DPRINTK("probe end\n");
 
 	return 0;
 }
@@ -5919,8 +6131,6 @@ 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;
@@ -5928,28 +6138,15 @@ 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:
@@ -6400,7 +6597,8 @@ 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);
@@ -6442,7 +6640,6 @@ EXPORT_SYMBOL_GPL(ata_dev_pair);
 EXPORT_SYMBOL_GPL(ata_port_disable);
 EXPORT_SYMBOL_GPL(ata_ratelimit);
 EXPORT_SYMBOL_GPL(ata_wait_register);
-EXPORT_SYMBOL_GPL(ata_scsi_ioctl);
 EXPORT_SYMBOL_GPL(ata_scsi_queuecmd);
 EXPORT_SYMBOL_GPL(ata_scsi_slave_config);
 EXPORT_SYMBOL_GPL(ata_scsi_slave_destroy);