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Subject[BK PATCHES] 2.6.x libata fixes
Please do a

bk pull bk://gkernel.bkbits.net/libata-2.6

This will update the following files:

drivers/scsi/ahci.c | 2 --
drivers/scsi/libata-scsi.c | 7 ++++++-
drivers/scsi/sata_sil.c | 32 +++++++++++++++++++++++++++++++-
3 files changed, 37 insertions(+), 4 deletions(-)

through these ChangeSets:

<carlos.pardo:siliconimage.com>:
o sata_sil: Fix FIFO PCI Bus Arbitration

Brett Russ:
o libata: support descriptor sense in ctrl page

Jason Gaston:
o SATA AHCI correction Intel ICH7R

Jeff Garzik:
o [libata sata_sil] Don't presume PCI cache-line-size reg is > 0

diff -Nru a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
--- a/drivers/scsi/ahci.c 2005-03-29 15:45:18 -05:00
+++ b/drivers/scsi/ahci.c 2005-03-29 15:45:18 -05:00
@@ -253,8 +253,6 @@
board_ahci }, /* ICH7 */
{ PCI_VENDOR_ID_INTEL, 0x27c5, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_ahci }, /* ICH7M */
- { PCI_VENDOR_ID_INTEL, 0x27c2, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- board_ahci }, /* ICH7R */
{ PCI_VENDOR_ID_INTEL, 0x27c3, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_ahci }, /* ICH7R */
{ PCI_VENDOR_ID_AL, 0x5288, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
diff -Nru a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
--- a/drivers/scsi/libata-scsi.c 2005-03-29 15:45:18 -05:00
+++ b/drivers/scsi/libata-scsi.c 2005-03-29 15:45:18 -05:00
@@ -1038,7 +1038,12 @@

static unsigned int ata_msense_ctl_mode(u8 **ptr_io, const u8 *last)
{
- const u8 page[] = {0xa, 0xa, 2, 0, 0, 0, 0, 0, 0xff, 0xff, 0, 30};
+ const u8 page[] = {0xa, 0xa, 6, 0, 0, 0, 0, 0, 0xff, 0xff, 0, 30};
+
+ /* byte 2: set the descriptor format sense data bit (bit 2)
+ * since we need to support returning this format for SAT
+ * commands and any SCSI commands against a 48b LBA device.
+ */

ata_msense_push(ptr_io, last, page, sizeof(page));
return sizeof(page);
diff -Nru a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
--- a/drivers/scsi/sata_sil.c 2005-03-29 15:45:18 -05:00
+++ b/drivers/scsi/sata_sil.c 2005-03-29 15:45:18 -05:00
@@ -38,12 +38,21 @@
#include <linux/libata.h>

#define DRV_NAME "sata_sil"
-#define DRV_VERSION "0.8"
+#define DRV_VERSION "0.9"

enum {
sil_3112 = 0,
sil_3114 = 1,

+ SIL_FIFO_R0 = 0x40,
+ SIL_FIFO_W0 = 0x41,
+ SIL_FIFO_R1 = 0x44,
+ SIL_FIFO_W1 = 0x45,
+ SIL_FIFO_R2 = 0x240,
+ SIL_FIFO_W2 = 0x241,
+ SIL_FIFO_R3 = 0x244,
+ SIL_FIFO_W3 = 0x245,
+
SIL_SYSCFG = 0x48,
SIL_MASK_IDE0_INT = (1 << 22),
SIL_MASK_IDE1_INT = (1 << 23),
@@ -199,6 +208,13 @@
MODULE_DEVICE_TABLE(pci, sil_pci_tbl);
MODULE_VERSION(DRV_VERSION);

+static unsigned char sil_get_device_cache_line(struct pci_dev *pdev)
+{
+ u8 cache_line = 0;
+ pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &cache_line);
+ return cache_line;
+}
+
static void sil_post_set_mode (struct ata_port *ap)
{
struct ata_host_set *host_set = ap->host_set;
@@ -341,6 +357,7 @@
unsigned int i;
int pci_dev_busy = 0;
u32 tmp, irq_mask;
+ u8 cls;

if (!printed_version++)
printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
@@ -404,6 +421,19 @@
probe_ent->port[i].scr_addr = base + sil_port[i].scr;
ata_std_ports(&probe_ent->port[i]);
}
+
+ /* Initialize FIFO PCI bus arbitration */
+ cls = sil_get_device_cache_line(pdev);
+ if (cls) {
+ cls >>= 3;
+ cls++; /* cls = (line_size/8)+1 */
+ writeb(cls, mmio_base + SIL_FIFO_R0);
+ writeb(cls, mmio_base + SIL_FIFO_W0);
+ writeb(cls, mmio_base + SIL_FIFO_R1);
+ writeb(cls, mmio_base + SIL_FIFO_W2);
+ } else
+ printk(KERN_WARNING DRV_NAME "(%s): cache line size not set. Driver may not function\n",
+ pci_name(pdev));

if (ent->driver_data == sil_3114) {
irq_mask = SIL_MASK_4PORT;
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