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Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (84 commits)
  [SCSI] be2iscsi: SGE Len == 64K
  [SCSI] be2iscsi: Remove premature free of cid
  [SCSI] be2iscsi: More time for FW
  [SCSI] libsas: fix bug for vacant phy
  [SCSI] sd: Fix overflow with big physical blocks
  [SCSI] st: add MTWEOFI to write filemarks without flushing drive buffer
  [SCSI] libsas: Don't issue commands to devices that have been hot-removed
  [SCSI] megaraid_sas: Add Online Controller Reset to MegaRAID SAS drive
  [SCSI] lpfc 8.3.17: Update lpfc driver version to 8.3.17
  [SCSI] lpfc 8.3.17: Replace function reset methodology
  [SCSI] lpfc 8.3.17: SCSI fixes
  [SCSI] lpfc 8.3.17: BSG fixes
  [SCSI] lpfc 8.3.17: SLI Additions and Fixes
  [SCSI] lpfc 8.3.17: Code Cleanup and Locking fixes
  [SCSI] zfcp: Remove scsi_cmnd->serial_number from debug traces
  [SCSI] ipr: fix array error logging
  [SCSI] aha152x: enable PCMCIA on 64bit
  [SCSI] scsi_dh_alua: Handle all states correctly
  [SCSI] cxgb4i: connection and ddp setting update
  [SCSI] cxgb3i: fixed connection over vlan
  ...
This commit is contained in:
Linus Torvalds
2010-10-22 17:34:15 -07:00
parent 80c226fbef 58ff4bd042
commit c70b5296e7
306 changed files with 39258 additions and 45052 deletions
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78
drivers/scsi/sd.c
View File

@@ -477,7 +477,7 @@ static int scsi_setup_discard_cmnd(struct scsi_device *sdp, struct request *rq)
static int scsi_setup_flush_cmnd(struct scsi_device *sdp, struct request *rq)
{
rq->timeout = SD_TIMEOUT;
rq->timeout = SD_FLUSH_TIMEOUT;
rq->retries = SD_MAX_RETRIES;
rq->cmd[0] = SYNCHRONIZE_CACHE;
rq->cmd_len = 10;
@@ -1072,7 +1072,7 @@ static int sd_sync_cache(struct scsi_disk *sdkp)
* flush everything.
*/
res = scsi_execute_req(sdp, cmd, DMA_NONE, NULL, 0, &sshdr,
SD_TIMEOUT, SD_MAX_RETRIES, NULL);
SD_FLUSH_TIMEOUT, SD_MAX_RETRIES, NULL);
if (res == 0)
break;
}
@@ -1554,7 +1554,7 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
}
/* Logical blocks per physical block exponent */
sdkp->hw_sector_size = (1 << (buffer[13] & 0xf)) * sector_size;
sdkp->physical_block_size = (1 << (buffer[13] & 0xf)) * sector_size;
/* Lowest aligned logical block */
alignment = ((buffer[14] & 0x3f) << 8 | buffer[15]) * sector_size;
@@ -1567,7 +1567,7 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
struct request_queue *q = sdp->request_queue;
sdkp->thin_provisioning = 1;
q->limits.discard_granularity = sdkp->hw_sector_size;
q->limits.discard_granularity = sdkp->physical_block_size;
q->limits.max_discard_sectors = 0xffffffff;
if (buffer[14] & 0x40) /* TPRZ */
@@ -1635,7 +1635,7 @@ static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp,
}
sdkp->capacity = lba + 1;
sdkp->hw_sector_size = sector_size;
sdkp->physical_block_size = sector_size;
return sector_size;
}
@@ -1756,10 +1756,10 @@ got_data:
(unsigned long long)sdkp->capacity,
sector_size, cap_str_10, cap_str_2);
if (sdkp->hw_sector_size != sector_size)
if (sdkp->physical_block_size != sector_size)
sd_printk(KERN_NOTICE, sdkp,
"%u-byte physical blocks\n",
sdkp->hw_sector_size);
sdkp->physical_block_size);
}
}
@@ -1773,7 +1773,8 @@ got_data:
else if (sector_size == 256)
sdkp->capacity >>= 1;
blk_queue_physical_block_size(sdp->request_queue, sdkp->hw_sector_size);
blk_queue_physical_block_size(sdp->request_queue,
sdkp->physical_block_size);
sdkp->device->sector_size = sector_size;
}
@@ -2039,14 +2040,24 @@ static void sd_read_block_limits(struct scsi_disk *sdkp)
lba_count = get_unaligned_be32(&buffer[20]);
desc_count = get_unaligned_be32(&buffer[24]);
if (lba_count) {
q->limits.max_discard_sectors =
lba_count * sector_sz >> 9;
if (desc_count)
if (lba_count && desc_count) {
if (sdkp->tpvpd && !sdkp->tpu)
sdkp->unmap = 0;
else
sdkp->unmap = 1;
}
if (sdkp->tpvpd && !sdkp->tpu && !sdkp->tpws) {
sd_printk(KERN_ERR, sdkp, "Thin provisioning is " \
"enabled but neither TPU, nor TPWS are " \
"set. Disabling discard!\n");
goto out;
}
if (lba_count)
q->limits.max_discard_sectors =
lba_count * sector_sz >> 9;
granularity = get_unaligned_be32(&buffer[28]);
if (granularity)
@@ -2087,6 +2098,31 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp)
kfree(buffer);
}
/**
* sd_read_thin_provisioning - Query thin provisioning VPD page
* @disk: disk to query
*/
static void sd_read_thin_provisioning(struct scsi_disk *sdkp)
{
unsigned char *buffer;
const int vpd_len = 8;
if (sdkp->thin_provisioning == 0)
return;
buffer = kmalloc(vpd_len, GFP_KERNEL);
if (!buffer || scsi_get_vpd_page(sdkp->device, 0xb2, buffer, vpd_len))
goto out;
sdkp->tpvpd = 1;
sdkp->tpu = (buffer[5] >> 7) & 1; /* UNMAP */
sdkp->tpws = (buffer[5] >> 6) & 1; /* WRITE SAME(16) with UNMAP */
out:
kfree(buffer);
}
static int sd_try_extended_inquiry(struct scsi_device *sdp)
{
/*
@@ -2138,6 +2174,7 @@ static int sd_revalidate_disk(struct gendisk *disk)
sd_read_capacity(sdkp, buffer);
if (sd_try_extended_inquiry(sdp)) {
sd_read_thin_provisioning(sdkp);
sd_read_block_limits(sdkp);
sd_read_block_characteristics(sdkp);
}
@@ -2250,11 +2287,10 @@ static void sd_probe_async(void *data, async_cookie_t cookie)
index = sdkp->index;
dev = &sdp->sdev_gendev;
if (index < SD_MAX_DISKS) {
gd->major = sd_major((index & 0xf0) >> 4);
gd->first_minor = ((index & 0xf) << 4) | (index & 0xfff00);
gd->minors = SD_MINORS;
}
gd->major = sd_major((index & 0xf0) >> 4);
gd->first_minor = ((index & 0xf) << 4) | (index & 0xfff00);
gd->minors = SD_MINORS;
gd->fops = &sd_fops;
gd->private_data = &sdkp->driver;
gd->queue = sdkp->device->request_queue;
@@ -2344,6 +2380,12 @@ static int sd_probe(struct device *dev)
if (error)
goto out_put;
if (index >= SD_MAX_DISKS) {
error = -ENODEV;
sdev_printk(KERN_WARNING, sdp, "SCSI disk (sd) name space exhausted.\n");
goto out_free_index;
}
error = sd_format_disk_name("sd", index, gd->disk_name, DISK_NAME_LEN);
if (error)
goto out_free_index;