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Message-ID: <20090417230749.GA24506@havoc.gtf.org>
Date: Fri, 17 Apr 2009 19:07:49 -0400
From: Jeff Garzik <jeff@...zik.org>
To: Andrew Morton <akpm@...ux-foundation.org>,
Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-ide@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: [git patches] libata fixes
I accidentally pulled the trigger too soon on Alan's 32-bit PIO ioctl
patch, leading to build breakage. This fixes that, plus some other
minor fixes.
Please pull from 'upstream-linus' branch of
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git upstream-linus
to receive the following updates:
drivers/ata/pata_legacy.c | 13 ++++----
drivers/ata/pata_via.c | 74 ++++++++++++++++++++++++++++++++++++++++----
drivers/ata/sata_mv.c | 58 +++++++++++++++++++++++++++++------
3 files changed, 122 insertions(+), 23 deletions(-)
Alan Cox (1):
pata_via: Cache and rewrite the device bit
Mark Lord (2):
sata_mv: tidy up qc->tf usage in qc_prep() functions
sata_mv: workaround for multi_count errata sata24
Zhenwen Xu (1):
[libata] fix build error on drivers/ata/pata_legacy.c
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index 6f985be..f72c6c5 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -285,10 +285,11 @@ static unsigned int pdc_data_xfer_vlb(struct ata_device *dev,
unsigned char *buf, unsigned int buflen, int rw)
{
int slop = buflen & 3;
+ struct ata_port *ap = dev->link->ap;
+
/* 32bit I/O capable *and* we need to write a whole number of dwords */
if (ata_id_has_dword_io(dev->id) && (slop == 0 || slop == 3)
&& (ap->pflags & ATA_PFLAG_PIO32)) {
- struct ata_port *ap = dev->link->ap;
unsigned long flags;
local_irq_save(flags);
@@ -866,7 +867,7 @@ static struct legacy_controller controllers[] = {
0, 0, NULL },
{"PDC20230", &pdc20230_port_ops, 0x7,
ATA_FLAG_NO_IORDY,
- ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32_CHANGE, NULL },
+ ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE, NULL },
{"HT6560A", &ht6560a_port_ops, 0x07,
ATA_FLAG_NO_IORDY, 0, NULL },
{"HT6560B", &ht6560b_port_ops, 0x1F,
@@ -877,13 +878,13 @@ static struct legacy_controller controllers[] = {
0, 0, NULL },
{"QDI6500", &qdi6500_port_ops, 0x07,
ATA_FLAG_NO_IORDY,
- ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32_CHANGE, qdi_port },
+ ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE, qdi_port },
{"QDI6580", &qdi6580_port_ops, 0x1F,
- 0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32_CHANGE, qdi_port },
+ 0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE, qdi_port },
{"QDI6580DP", &qdi6580dp_port_ops, 0x1F,
- 0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32_CHANGE, qdi_port },
+ 0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE, qdi_port },
{"W83759A", &winbond_port_ops, 0x1F,
- 0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32_CHANGE,
+ 0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE,
winbond_port }
};
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index b08e6e0..45657ca 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -62,7 +62,7 @@
#include <linux/dmi.h>
#define DRV_NAME "pata_via"
-#define DRV_VERSION "0.3.3"
+#define DRV_VERSION "0.3.4"
/*
* The following comes directly from Vojtech Pavlik's ide/pci/via82cxxx
@@ -136,6 +136,9 @@ static const struct via_isa_bridge {
{ NULL }
};
+struct via_port {
+ u8 cached_device;
+};
/*
* Cable special cases
@@ -346,14 +349,70 @@ static void via_set_dmamode(struct ata_port *ap, struct ata_device *adev)
*/
static void via_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
{
- struct ata_taskfile tmp_tf;
+ struct ata_ioports *ioaddr = &ap->ioaddr;
+ struct via_port *vp = ap->private_data;
+ unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
+ int newctl = 0;
+
+ if (tf->ctl != ap->last_ctl) {
+ iowrite8(tf->ctl, ioaddr->ctl_addr);
+ ap->last_ctl = tf->ctl;
+ ata_wait_idle(ap);
+ newctl = 1;
+ }
+
+ if (tf->flags & ATA_TFLAG_DEVICE) {
+ iowrite8(tf->device, ioaddr->device_addr);
+ vp->cached_device = tf->device;
+ } else if (newctl)
+ iowrite8(vp->cached_device, ioaddr->device_addr);
+
+ if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
+ WARN_ON_ONCE(!ioaddr->ctl_addr);
+ iowrite8(tf->hob_feature, ioaddr->feature_addr);
+ iowrite8(tf->hob_nsect, ioaddr->nsect_addr);
+ iowrite8(tf->hob_lbal, ioaddr->lbal_addr);
+ iowrite8(tf->hob_lbam, ioaddr->lbam_addr);
+ iowrite8(tf->hob_lbah, ioaddr->lbah_addr);
+ VPRINTK("hob: feat 0x%X nsect 0x%X, lba 0x%X 0x%X 0x%X\n",
+ tf->hob_feature,
+ tf->hob_nsect,
+ tf->hob_lbal,
+ tf->hob_lbam,
+ tf->hob_lbah);
+ }
- if (ap->ctl != ap->last_ctl && !(tf->flags & ATA_TFLAG_DEVICE)) {
- tmp_tf = *tf;
- tmp_tf.flags |= ATA_TFLAG_DEVICE;
- tf = &tmp_tf;
+ if (is_addr) {
+ iowrite8(tf->feature, ioaddr->feature_addr);
+ iowrite8(tf->nsect, ioaddr->nsect_addr);
+ iowrite8(tf->lbal, ioaddr->lbal_addr);
+ iowrite8(tf->lbam, ioaddr->lbam_addr);
+ iowrite8(tf->lbah, ioaddr->lbah_addr);
+ VPRINTK("feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n",
+ tf->feature,
+ tf->nsect,
+ tf->lbal,
+ tf->lbam,
+ tf->lbah);
}
- ata_sff_tf_load(ap, tf);
+
+ ata_wait_idle(ap);
+}
+
+static int via_port_start(struct ata_port *ap)
+{
+ struct via_port *vp;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ int ret = ata_sff_port_start(ap);
+ if (ret < 0)
+ return ret;
+
+ vp = devm_kzalloc(&pdev->dev, sizeof(struct via_port), GFP_KERNEL);
+ if (vp == NULL)
+ return -ENOMEM;
+ ap->private_data = vp;
+ return 0;
}
static struct scsi_host_template via_sht = {
@@ -367,6 +426,7 @@ static struct ata_port_operations via_port_ops = {
.set_dmamode = via_set_dmamode,
.prereset = via_pre_reset,
.sff_tf_load = via_tf_load,
+ .port_start = via_port_start,
};
static struct ata_port_operations via_port_ops_noirq = {
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 37ae5dc..870dcfd 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1881,6 +1881,39 @@ static u8 mv_bmdma_status(struct ata_port *ap)
return status;
}
+static void mv_rw_multi_errata_sata24(struct ata_queued_cmd *qc)
+{
+ struct ata_taskfile *tf = &qc->tf;
+ /*
+ * Workaround for 88SX60x1 FEr SATA#24.
+ *
+ * Chip may corrupt WRITEs if multi_count >= 4kB.
+ * Note that READs are unaffected.
+ *
+ * It's not clear if this errata really means "4K bytes",
+ * or if it always happens for multi_count > 7
+ * regardless of device sector_size.
+ *
+ * So, for safety, any write with multi_count > 7
+ * gets converted here into a regular PIO write instead:
+ */
+ if ((tf->flags & ATA_TFLAG_WRITE) && is_multi_taskfile(tf)) {
+ if (qc->dev->multi_count > 7) {
+ switch (tf->command) {
+ case ATA_CMD_WRITE_MULTI:
+ tf->command = ATA_CMD_PIO_WRITE;
+ break;
+ case ATA_CMD_WRITE_MULTI_FUA_EXT:
+ tf->flags &= ~ATA_TFLAG_FUA; /* ugh */
+ /* fall through */
+ case ATA_CMD_WRITE_MULTI_EXT:
+ tf->command = ATA_CMD_PIO_WRITE_EXT;
+ break;
+ }
+ }
+ }
+}
+
/**
* mv_qc_prep - Host specific command preparation.
* @qc: queued command to prepare
@@ -1898,17 +1931,24 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
struct ata_port *ap = qc->ap;
struct mv_port_priv *pp = ap->private_data;
__le16 *cw;
- struct ata_taskfile *tf;
+ struct ata_taskfile *tf = &qc->tf;
u16 flags = 0;
unsigned in_index;
- if ((qc->tf.protocol != ATA_PROT_DMA) &&
- (qc->tf.protocol != ATA_PROT_NCQ))
+ switch (tf->protocol) {
+ case ATA_PROT_DMA:
+ case ATA_PROT_NCQ:
+ break; /* continue below */
+ case ATA_PROT_PIO:
+ mv_rw_multi_errata_sata24(qc);
+ return;
+ default:
return;
+ }
/* Fill in command request block
*/
- if (!(qc->tf.flags & ATA_TFLAG_WRITE))
+ if (!(tf->flags & ATA_TFLAG_WRITE))
flags |= CRQB_FLAG_READ;
WARN_ON(MV_MAX_Q_DEPTH <= qc->tag);
flags |= qc->tag << CRQB_TAG_SHIFT;
@@ -1924,7 +1964,6 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
pp->crqb[in_index].ctrl_flags = cpu_to_le16(flags);
cw = &pp->crqb[in_index].ata_cmd[0];
- tf = &qc->tf;
/* Sadly, the CRQB cannot accomodate all registers--there are
* only 11 bytes...so we must pick and choose required
@@ -1990,16 +2029,16 @@ static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
struct ata_port *ap = qc->ap;
struct mv_port_priv *pp = ap->private_data;
struct mv_crqb_iie *crqb;
- struct ata_taskfile *tf;
+ struct ata_taskfile *tf = &qc->tf;
unsigned in_index;
u32 flags = 0;
- if ((qc->tf.protocol != ATA_PROT_DMA) &&
- (qc->tf.protocol != ATA_PROT_NCQ))
+ if ((tf->protocol != ATA_PROT_DMA) &&
+ (tf->protocol != ATA_PROT_NCQ))
return;
/* Fill in Gen IIE command request block */
- if (!(qc->tf.flags & ATA_TFLAG_WRITE))
+ if (!(tf->flags & ATA_TFLAG_WRITE))
flags |= CRQB_FLAG_READ;
WARN_ON(MV_MAX_Q_DEPTH <= qc->tag);
@@ -2015,7 +2054,6 @@ static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
crqb->addr_hi = cpu_to_le32((pp->sg_tbl_dma[qc->tag] >> 16) >> 16);
crqb->flags = cpu_to_le32(flags);
- tf = &qc->tf;
crqb->ata_cmd[0] = cpu_to_le32(
(tf->command << 16) |
(tf->feature << 24)
--
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