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Message-ID: <20070604205416.GG20299@havoc.gtf.org>
Date: Mon, 4 Jun 2007 16:54:16 -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 patch] libata fix
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/libata-core.c | 13 ++++---------
drivers/ata/pata_via.c | 12 ++++++------
include/linux/libata.h | 1 -
3 files changed, 10 insertions(+), 16 deletions(-)
Tejun Heo (1):
libata: always use polling SETXFER
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index af62514..4733f00 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3933,10 +3933,13 @@ static unsigned int ata_dev_set_xfermode(struct ata_device *dev)
/* set up set-features taskfile */
DPRINTK("set features - xfer mode\n");
+ /* Some controllers and ATAPI devices show flaky interrupt
+ * behavior after setting xfer mode. Use polling instead.
+ */
ata_tf_init(dev, &tf);
tf.command = ATA_CMD_SET_FEATURES;
tf.feature = SETFEATURES_XFER;
- tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
+ tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_POLLING;
tf.protocol = ATA_PROT_NODATA;
tf.nsect = dev->xfer_mode;
@@ -5414,14 +5417,6 @@ unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc)
}
}
- /* Some controllers show flaky interrupt behavior after
- * setting xfer mode. Use polling instead.
- */
- if (unlikely(qc->tf.command == ATA_CMD_SET_FEATURES &&
- qc->tf.feature == SETFEATURES_XFER) &&
- (ap->flags & ATA_FLAG_SETXFER_POLLING))
- qc->tf.flags |= ATA_TFLAG_POLLING;
-
/* select the device */
ata_dev_select(ap, qc->dev->devno, 1, 0);
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index a8462f1..63eca29 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -452,7 +452,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
/* Early VIA without UDMA support */
static const struct ata_port_info via_mwdma_info = {
.sht = &via_sht,
- .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING,
+ .flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
.port_ops = &via_port_ops
@@ -460,7 +460,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
/* Ditto with IRQ masking required */
static const struct ata_port_info via_mwdma_info_borked = {
.sht = &via_sht,
- .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING,
+ .flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
.port_ops = &via_port_ops_noirq,
@@ -468,7 +468,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
/* VIA UDMA 33 devices (and borked 66) */
static const struct ata_port_info via_udma33_info = {
.sht = &via_sht,
- .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING,
+ .flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
.udma_mask = 0x7,
@@ -477,7 +477,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
/* VIA UDMA 66 devices */
static const struct ata_port_info via_udma66_info = {
.sht = &via_sht,
- .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING,
+ .flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
.udma_mask = 0x1f,
@@ -486,7 +486,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
/* VIA UDMA 100 devices */
static const struct ata_port_info via_udma100_info = {
.sht = &via_sht,
- .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING,
+ .flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
.udma_mask = 0x3f,
@@ -495,7 +495,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
/* UDMA133 with bad AST (All current 133) */
static const struct ata_port_info via_udma133_info = {
.sht = &via_sht,
- .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING,
+ .flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
.udma_mask = 0x7f, /* FIXME: should check north bridge */
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 85f7b1b..a6a3113 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -171,7 +171,6 @@ enum {
ATA_FLAG_SKIP_D2H_BSY = (1 << 12), /* can't wait for the first D2H
* Register FIS clearing BSY */
ATA_FLAG_DEBUGMSG = (1 << 13),
- ATA_FLAG_SETXFER_POLLING= (1 << 14), /* use polling for SETXFER */
ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */
ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */
ATA_FLAG_ACPI_SATA = (1 << 17), /* need native SATA ACPI layout */
-
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