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Message-ID: <20080301003259.GA12378@havoc.gtf.org>
Date: Fri, 29 Feb 2008 19:32:59 -0500
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, and release notes
RELEASE NOTES:
There remains an outstanding CD/DVD burning regression, which
is IMO a release blocker. A fix exists[1], but it is still being
discussed[2].
A data corruptor fix on ATI SB600 (AHCI clone) also exists[3], and is
waiting on confirmation/feedback from AMD, but the existing workaround
(AHCI_HFLAG_32BIT_ONLY) seems to work _most_ of the time, if only by
luck.
[1] http://marc.info/?l=linux-ide&m=120418865825486&w=2
[2] http://marc.info/?t=120418867400002&r=1&w=2
[3] http://marc.info/?l=linux-ide&m=120423157501944&w=2
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-scsi.c | 10 ++++++
drivers/ata/sata_svw.c | 77 ++++++++++++++++++++++++++++++++++++--------
2 files changed, 73 insertions(+), 14 deletions(-)
Anantha Subramanyam (1):
sata_svw: Add support for HT1100 SATA controller
Jeff Garzik (1):
[libata] wrap kmap_atomic(KM_IRQ0) with local_irq_save/restore()
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 0562b0a..7b1f1ee 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1694,12 +1694,17 @@ void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
u8 *rbuf;
unsigned int buflen, rc;
struct scsi_cmnd *cmd = args->cmd;
+ unsigned long flags;
+
+ local_irq_save(flags);
buflen = ata_scsi_rbuf_get(cmd, &rbuf);
memset(rbuf, 0, buflen);
rc = actor(args, rbuf, buflen);
ata_scsi_rbuf_put(cmd, rbuf);
+ local_irq_restore(flags);
+
if (rc == 0)
cmd->result = SAM_STAT_GOOD;
args->done(cmd);
@@ -2473,6 +2478,9 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
if ((scsicmd[0] == INQUIRY) && ((scsicmd[1] & 0x03) == 0)) {
u8 *buf = NULL;
unsigned int buflen;
+ unsigned long flags;
+
+ local_irq_save(flags);
buflen = ata_scsi_rbuf_get(cmd, &buf);
@@ -2490,6 +2498,8 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
}
ata_scsi_rbuf_put(cmd, buf);
+
+ local_irq_restore(flags);
}
cmd->result = SAM_STAT_GOOD;
diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c
index 69f651e..840d1c4 100644
--- a/drivers/ata/sata_svw.c
+++ b/drivers/ata/sata_svw.c
@@ -45,6 +45,8 @@
#include <linux/interrupt.h>
#include <linux/device.h>
#include <scsi/scsi_host.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi.h>
#include <linux/libata.h>
#ifdef CONFIG_PPC_OF
@@ -59,6 +61,7 @@ enum {
/* ap->flags bits */
K2_FLAG_SATA_8_PORTS = (1 << 24),
K2_FLAG_NO_ATAPI_DMA = (1 << 25),
+ K2_FLAG_BAR_POS_3 = (1 << 26),
/* Taskfile registers offsets */
K2_SATA_TF_CMD_OFFSET = 0x00,
@@ -88,8 +91,10 @@ enum {
/* Port stride */
K2_SATA_PORT_OFFSET = 0x100,
- board_svw4 = 0,
- board_svw8 = 1,
+ chip_svw4 = 0,
+ chip_svw8 = 1,
+ chip_svw42 = 2, /* bar 3 */
+ chip_svw43 = 3, /* bar 5 */
};
static u8 k2_stat_check_status(struct ata_port *ap);
@@ -97,10 +102,25 @@ static u8 k2_stat_check_status(struct ata_port *ap);
static int k2_sata_check_atapi_dma(struct ata_queued_cmd *qc)
{
+ u8 cmnd = qc->scsicmd->cmnd[0];
+
if (qc->ap->flags & K2_FLAG_NO_ATAPI_DMA)
return -1; /* ATAPI DMA not supported */
+ else {
+ switch (cmnd) {
+ case READ_10:
+ case READ_12:
+ case READ_16:
+ case WRITE_10:
+ case WRITE_12:
+ case WRITE_16:
+ return 0;
+
+ default:
+ return -1;
+ }
- return 0;
+ }
}
static int k2_sata_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
@@ -354,7 +374,7 @@ static const struct ata_port_operations k2_sata_ops = {
};
static const struct ata_port_info k2_port_info[] = {
- /* board_svw4 */
+ /* chip_svw4 */
{
.flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_MMIO | K2_FLAG_NO_ATAPI_DMA,
@@ -363,7 +383,7 @@ static const struct ata_port_info k2_port_info[] = {
.udma_mask = ATA_UDMA6,
.port_ops = &k2_sata_ops,
},
- /* board_svw8 */
+ /* chip_svw8 */
{
.flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_MMIO | K2_FLAG_NO_ATAPI_DMA |
@@ -373,6 +393,24 @@ static const struct ata_port_info k2_port_info[] = {
.udma_mask = ATA_UDMA6,
.port_ops = &k2_sata_ops,
},
+ /* chip_svw42 */
+ {
+ .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
+ ATA_FLAG_MMIO | K2_FLAG_BAR_POS_3,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &k2_sata_ops,
+ },
+ /* chip_svw43 */
+ {
+ .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
+ ATA_FLAG_MMIO,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &k2_sata_ops,
+ },
};
static void k2_sata_setup_port(struct ata_ioports *port, void __iomem *base)
@@ -402,7 +440,7 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en
{ &k2_port_info[ent->driver_data], NULL };
struct ata_host *host;
void __iomem *mmio_base;
- int n_ports, i, rc;
+ int n_ports, i, rc, bar_pos;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
@@ -416,6 +454,9 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en
if (!host)
return -ENOMEM;
+ bar_pos = 5;
+ if (ppi[0]->flags & K2_FLAG_BAR_POS_3)
+ bar_pos = 3;
/*
* If this driver happens to only be useful on Apple's K2, then
* we should check that here as it has a normal Serverworks ID
@@ -428,17 +469,23 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en
* Check if we have resources mapped at all (second function may
* have been disabled by firmware)
*/
- if (pci_resource_len(pdev, 5) == 0)
+ if (pci_resource_len(pdev, bar_pos) == 0) {
+ /* In IDE mode we need to pin the device to ensure that
+ pcim_release does not clear the busmaster bit in config
+ space, clearing causes busmaster DMA to fail on
+ ports 3 & 4 */
+ pcim_pin_device(pdev);
return -ENODEV;
+ }
/* Request and iomap PCI regions */
- rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME);
+ rc = pcim_iomap_regions(pdev, 1 << bar_pos, DRV_NAME);
if (rc == -EBUSY)
pcim_pin_device(pdev);
if (rc)
return rc;
host->iomap = pcim_iomap_table(pdev);
- mmio_base = host->iomap[5];
+ mmio_base = host->iomap[bar_pos];
/* different controllers have different number of ports - currently 4 or 8 */
/* All ports are on the same function. Multi-function device is no
@@ -483,11 +530,13 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en
* controller
* */
static const struct pci_device_id k2_sata_pci_tbl[] = {
- { PCI_VDEVICE(SERVERWORKS, 0x0240), board_svw4 },
- { PCI_VDEVICE(SERVERWORKS, 0x0241), board_svw4 },
- { PCI_VDEVICE(SERVERWORKS, 0x0242), board_svw8 },
- { PCI_VDEVICE(SERVERWORKS, 0x024a), board_svw4 },
- { PCI_VDEVICE(SERVERWORKS, 0x024b), board_svw4 },
+ { PCI_VDEVICE(SERVERWORKS, 0x0240), chip_svw4 },
+ { PCI_VDEVICE(SERVERWORKS, 0x0241), chip_svw4 },
+ { PCI_VDEVICE(SERVERWORKS, 0x0242), chip_svw8 },
+ { PCI_VDEVICE(SERVERWORKS, 0x024a), chip_svw4 },
+ { PCI_VDEVICE(SERVERWORKS, 0x024b), chip_svw4 },
+ { PCI_VDEVICE(SERVERWORKS, 0x0410), chip_svw42 },
+ { PCI_VDEVICE(SERVERWORKS, 0x0411), chip_svw43 },
{ }
};
--
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