Martin K. Petersen 5db44863b6 [SCSI] sd: Implement support for WRITE SAME ...

Implement support for WRITE SAME(10) and WRITE SAME(16) in the SCSI disk
driver.

 - We set the default maximum to 0xFFFF because there are several
   devices out there that only support two-byte block counts even with
   WRITE SAME(16). We only enable transfers bigger than 0xFFFF if the
   device explicitly reports MAXIMUM WRITE SAME LENGTH in the BLOCK
   LIMITS VPD.

 - max_write_same_blocks can be overriden per-device basis in sysfs.

 - The UNMAP discovery heuristics remain unchanged but the discard
   limits are tweaked to match the "real" WRITE SAME commands.

 - In the error handling logic we now distinguish between WRITE SAME
   with and without UNMAP set.

The discovery process heuristics are:

 - If the device reports a SCSI level of SPC-3 or greater we'll issue
   READ SUPPORTED OPERATION CODES to find out whether WRITE SAME(16) is
   supported. If that's the case we will use it.

 - If the device supports the block limits VPD and reports a MAXIMUM
   WRITE SAME LENGTH bigger than 0xFFFF we will use WRITE SAME(16).

 - Otherwise we will use WRITE SAME(10) unless the target LBA is beyond
   0xFFFFFFFF or the block count exceeds 0xFFFF.

 - no_write_same is set for ATA, FireWire and USB.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

2012-11-13 22:45:42 -08:00

..

aacraid

sections: fix section conflicts in drivers/scsi

2012-10-06 03:04:44 +09:00

aic7xxx

scsi: fix various printk and comment typos

2012-09-01 08:24:35 -07:00

aic7xxx_old

Fix common misspellings

2011-03-31 11:26:23 -03:00

aic94xx

sections: fix section conflicts in drivers/scsi

2012-10-06 03:04:44 +09:00

arcmsr

workqueue: deprecate flush[_delayed]_work_sync()

2012-08-20 14:51:24 -07:00

arm

Merge branch 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into fixes

2012-10-19 15:40:18 -07:00

be2iscsi

[SCSI] be2iscsi: Bump the driver version.

2012-09-14 17:59:28 +01:00

bfa

[SCSI] bfa: Update the driver version to 3.1.2.1

2012-10-07 11:29:16 +01:00

bnx2fc

SCSI for-linus on 20121002

2012-10-02 19:01:32 -07:00

bnx2i

[SCSI] bnx2i: Fixed NULL ptr deference for 1G bnx2 Linux iSCSI offload

2012-09-17 13:40:32 +01:00

cxgbi

SCSI misc on 20120724

2012-07-24 18:11:22 -07:00

device_handler

[SCSI] scsi_dh_alua: Enable STPG for unavailable ports

2012-09-24 12:21:56 +04:00

dpt

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

fcoe

[SCSI] fcoe: Fix write errors on NPIV ports

2012-10-07 11:49:34 +01:00

fnic

[SCSI] fnic: fix incorrect use of SLAB_CACHE_DMA flag

2011-06-29 16:05:41 -05:00

ibmvscsi

[SCSI] ibmvscsi: Fix host config length field overflow

2012-09-24 12:11:09 +04:00

isci

[SCSI] isci: copy fis 0x34 response into proper buffer

2012-11-13 13:45:14 +00:00

libfc

[SCSI] libfc: fix lun reset failure bugs in fc_fcp_resp handling of FCP_RSP_INFO

2012-10-07 11:52:55 +01:00

libsas

[SCSI] libsas, ipr: cleanup ata_host flags initialization via ata_host_init

2012-08-24 13:10:24 +04:00

lpfc

[SCSI] lpfc 8.3.35: Update lpfc version for 8.3.35 driver release

2012-10-08 12:16:11 +01:00

megaraid

[SCSI] megaraid_sas: Version, Changelog, Copyright update

2012-10-09 11:21:48 +01:00

mpt2sas

SCSI for-linus on 20121002

2012-10-02 19:01:32 -07:00

mvsas

[SCSI] mvsas: Fix oops when ata commond timeout.

2012-09-14 14:48:32 +01:00

osd

[SCSI] osd_uld: Bump MAX_OSD_DEVICES from 64 to 1,048,576

2012-02-25 08:25:09 -06:00

pcmcia

module_param: make bool parameters really bool (drivers & misc)

2012-01-13 09:32:20 +10:30

pm8001

[SCSI] libsas: trim sas_task of slow path infrastructure

2012-07-20 08:58:54 +01:00

qla2xxx

qla2xxx: Update target lookup session tables when a target session changes

2012-10-26 12:29:46 -07:00

qla4xxx

SCSI for-linus on 20121002

2012-10-02 19:01:32 -07:00

sym53c8xx_2

scsi: make pci error handlers const

2012-09-07 16:35:00 -06:00

ufs

[SCSI] ufs: fix incorrect return value about SUCCESS and FAILED

2012-07-20 08:59:02 +01:00

.gitignore

…

3w-9xxx.c

[SCSI] 3w-9xxx: fix iommu_iova leak

2011-09-26 09:28:58 -05:00

3w-9xxx.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

3w-sas.c

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

3w-sas.h

…

3w-xxxx.c

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

3w-xxxx.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

53c700_d.h_shipped

Fix common misspellings

2011-03-31 11:26:23 -03:00

53c700.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

53c700.h

…

53c700.scr

Fix common misspellings

2011-03-31 11:26:23 -03:00

a100u2w.c

Merge branch 'master' into for-next

2010-12-22 18:57:02 +01:00

a100u2w.h

…

a2091.c

scsi: Fix up files implicitly depending on module.h inclusion

2011-10-31 19:31:24 -04:00

a2091.h

…

a3000.c

scsi: Fix up files implicitly depending on module.h inclusion

2011-10-31 19:31:24 -04:00

a3000.h

…

a4000t.c

…

advansys.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

aha152x.c

scsi: aha152x: Fix sparse warning and make printing pointer address more portable.

2012-07-20 10:19:25 +02:00

aha152x.h

…

aha1542.c

treewide: Put a space between #include and FILE

2012-06-28 11:44:36 +02:00

aha1542.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

aha1740.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

aha1740.h

…

aic7xxx_old.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

atari_NCR5380.c

[SCSI] atari_NCR5380: Provide a dummy NCR5380_exit()

2011-06-29 15:11:21 -05:00

atari_scsi.c

scsi/atari: Make more functions static

2012-04-22 20:16:49 +02:00

atari_scsi.h

scsi/atari: Make more functions static

2012-04-22 20:16:49 +02:00

atp870u.c

drivers/scsi/atp870u.c: fix bad use of udelay

2012-10-06 03:04:37 +09:00

atp870u.h

…

BusLogic.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

BusLogic.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

bvme6000_scsi.c

…

ch.c

Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl

2010-10-22 10:52:56 -07:00

constants.c

[SCSI] add DID_TARGET_FAILURE and DID_NEXUS_FAILURE to hostbyte_table in constants.c

2012-09-14 11:58:53 +01:00

dc395x.c

module_param: make bool parameters really bool (drivers & misc)

2012-01-13 09:32:20 +10:30

dc395x.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

dmx3191d.c

…

dpt_i2o.c

[SCSI] remove cmd->serial_number litter

2011-05-01 10:22:40 -05:00

dpti.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

dtc.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

dtc.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

eata_generic.h

…

eata_pio.c

[SCSI] remove cmd->serial_number litter

2011-05-01 10:22:40 -05:00

eata_pio.h

…

eata.c

[SCSI] remove cmd->serial_number litter

2011-05-01 10:22:40 -05:00

esp_scsi.c

scsi: Use vsprintf extention %pf with builtin_return_address

2012-04-05 17:09:40 -07:00

esp_scsi.h

…

fdomain.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

fdomain.h

…

FlashPoint.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

g_NCR5380_mmio.c

…

g_NCR5380.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

g_NCR5380.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

gdth_ioctl.h

…

gdth_proc.c

[SCSI] gdth: Add missing call to gdth_ioctl_free

2010-12-31 09:50:09 -06:00

gdth_proc.h

…

gdth.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

gdth.h

gdt: remove unnecessary #defines

2012-09-01 08:43:34 -07:00

gvp11.c

scsi: Fix up files implicitly depending on module.h inclusion

2011-10-31 19:31:24 -04:00

gvp11.h

…

hosts.c

[SCSI] Fix device removal NULL pointer dereference

2012-07-20 08:58:40 +01:00

hpsa_cmd.h

[SCSI] hpsa: dial down lockup detection during firmware flash

2012-05-10 09:19:39 +01:00

hpsa.c

SCSI for-linus on 20121002

2012-10-02 19:01:32 -07:00

hpsa.h

[SCSI] hpsa: dial down lockup detection during firmware flash

2012-05-10 09:19:39 +01:00

hptiop.c

[SCSI] hptiop: fix RR312x in hosts with >12GB

2012-07-20 08:58:30 +01:00

hptiop.h

[SCSI] hptiop: fix RR312x in hosts with >12GB

2012-07-20 08:58:30 +01:00

imm.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

imm.h

…

in2000.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

in2000.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

initio.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

initio.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

ipr.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2012-10-06 03:16:12 +09:00

ipr.h

[SCSI] ipr: Driver version 2.5.4

2012-08-24 13:10:28 +04:00

ips.c

scsi: remove the second argument of k[un]map_atomic()

2012-03-20 21:48:19 +08:00

ips.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

iscsi_boot_sysfs.c

switch ->is_visible() to returning umode_t

2012-01-03 22:54:55 -05:00

iscsi_tcp.c

[SCSI] iscsi_tcp: increase max_lun to ~0, don't care

2012-09-24 12:10:55 +04:00

iscsi_tcp.h

[SCSI] iscsi_tcp: use iscsi_conn_get_addr_param libiscsi function

2011-02-24 12:41:10 -05:00

jazz_esp.c

misc latin1 to utf8 conversions

2012-01-02 13:04:55 +01:00

Kconfig

[SCSI] aha152x: Allow use on 64bit systems

2012-07-20 08:59:04 +01:00

lasi700.c

…

libiscsi_tcp.c

SCSI updates on 20120319

2012-03-22 12:55:29 -07:00

libiscsi.c

[SCSI] libiscsi: fix cmd timeout/completion race

2012-02-19 08:09:00 -06:00

libsrp.c

scsi: Fix up files implicitly depending on module.h inclusion

2011-10-31 19:31:24 -04:00

mac53c94.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

mac53c94.h

…

mac_esp.c

mac_esp: rename irq

2012-01-22 14:50:03 +01:00

mac_scsi.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

mac_scsi.h

…

Makefile

[SCSI] Remove scsi_wait_scan module

2012-07-20 08:58:13 +01:00

megaraid.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2012-10-01 09:06:36 -07:00

megaraid.h

megaraid: remove unnecessary #defines

2012-09-01 08:42:43 -07:00

mesh.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

mesh.h

…

mvme16x_scsi.c

…

mvme147.c

…

mvme147.h

…

mvumi.c

[SCSI] mvumi: Add support for Marvell SAS/SATA RAID-on-Chip(ROC) 88RC9580

2012-10-07 11:34:36 +01:00

mvumi.h

[SCSI] mvumi: Add support for Marvell SAS/SATA RAID-on-Chip(ROC) 88RC9580

2012-10-07 11:34:36 +01:00

ncr53c8xx.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

ncr53c8xx.h

…

NCR53c406a.c

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

NCR5380.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

NCR5380.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

NCR_D700.c

…

NCR_D700.h

…

NCR_Q720.c

…

NCR_Q720.h

…

nsp32_debug.c

treewide: fix a few typos in comments

2011-05-10 10:16:21 +02:00

nsp32_io.h

…

nsp32.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

nsp32.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

osst_detect.h

…

osst_options.h

…

osst.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

osst.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

pas16.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

pas16.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

pmcraid.c

workqueue: deprecate flush[_delayed]_work_sync()

2012-08-20 14:51:24 -07:00

pmcraid.h

scsi: Fix typo in pmcraid.h

2012-02-21 11:40:37 +01:00

ppa.c

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

ppa.h

…

ps3rom.c

scsi: Fix up files implicitly depending on module.h inclusion

2011-10-31 19:31:24 -04:00

qla1280.c

qla1280: Remove redundant NULL check before release_firmware() call

2012-04-30 13:25:43 +02:00

qla1280.h

…

qlogicfas408.c

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

qlogicfas408.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

qlogicfas.c

…

qlogicpti.c

qlogicpti: Fix build warning.

2012-10-28 13:26:37 -07:00

qlogicpti.h

of/device: Replace struct of_device with struct platform_device

2010-08-06 09:25:50 -06:00

raid_class.c

…

script_asm.pl

…

scsi_debug.c

[SCSI] scsi_debug: Fix off-by-one bug when unmapping region

2012-10-09 12:23:11 +01:00

scsi_devinfo.c

[SCSI] Disable DIF on Hitachi Ultrastar 15K300

2012-09-24 12:11:00 +04:00

scsi_error.c

[SCSI] Shorten the path length of scsi_cmd_to_driver()

2012-10-09 12:04:42 +01:00

scsi_ioctl.c

…

scsi_lib_dma.c

scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required

2011-10-31 19:31:23 -04:00

scsi_lib.c

[SCSI] sd: Implement support for WRITE SAME

2012-11-13 22:45:42 -08:00

scsi_logging.h

…

scsi_module.c

…

scsi_netlink.c

scsi_netlink: Remove dead and buggy code

2012-09-13 16:26:39 -04:00

scsi_pm.c

[SCSI] scsi_pm: set device runtime state before parent suspended

2012-07-20 08:58:55 +01:00

scsi_priv.h

[SCSI] async: introduce 'async_domain' type

2012-07-20 09:05:54 +01:00

scsi_proc.c

scsi: fix scsi_proc new kernel-doc warning

2011-05-28 23:12:11 -07:00

scsi_sas_internal.h

…

scsi_scan.c

Merge SCSI misc branch into isci-for-3.6 tag

2012-10-02 08:55:12 +01:00

scsi_sysctl.c

…

scsi_sysfs.c

[SCSI] scsi_remove_target: fix softlockup regression on hot remove

2012-09-24 12:17:49 +04:00

scsi_tgt_if.c

scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required

2011-10-31 19:31:23 -04:00

scsi_tgt_lib.c

[SCSI] esp, scsi_tgt_lib, fcoe: use list_move() instead of list_del()/list_add() combination

2011-05-01 10:20:10 -05:00

scsi_tgt_priv.h

…

scsi_trace.c

[SCSI] scsi_trace: Decode UNMAP bit in WRITE SAME(10)

2011-05-24 12:38:36 -04:00

scsi_transport_api.h

…

scsi_transport_fc_internal.h

…

scsi_transport_fc.c

Merge branch 'for-3.6/core' of git://git.kernel.dk/linux-block

2012-08-01 09:02:41 -07:00

scsi_transport_iscsi.c

netlink: Rename pid to portid to avoid confusion

2012-09-10 15:30:41 -04:00

scsi_transport_sas.c

[SCSI] scsi_transport_sas: 'enable' phys on reset

2012-02-29 15:43:54 -06:00

scsi_transport_spi.c

[SCSI] scsi_transport_spi: fix for unbalanced reference counting

2012-05-10 09:06:12 +01:00

scsi_transport_srp_internal.h

…

scsi_transport_srp.c

…

scsi_typedefs.h

…

scsi.c

[SCSI] Add a report opcode helper

2012-11-13 21:11:31 -08:00

scsi.h

…

scsicam.c

fs: move code out of buffer.c

2012-01-03 22:54:07 -05:00

sd_dif.c

[SCSI] sd: Avoid remapping bad reference tags

2012-09-24 12:10:59 +04:00

sd.c

[SCSI] sd: Implement support for WRITE SAME

2012-11-13 22:45:42 -08:00

sd.h

[SCSI] sd: Implement support for WRITE SAME

2012-11-13 22:45:42 -08:00

ses.c

[SCSI] ses: requesting a fault indication

2011-06-29 12:14:25 -05:00

sg.c

mm: kill vma flag VM_RESERVED and mm->reserved_vm counter

2012-10-09 16:22:19 +09:00

sgiwd93.c

update David Miller's old email address

2011-04-06 06:19:38 -07:00

sim710.c

scsi: delete the MCA specific drivers and driver code

2012-05-17 19:03:54 -04:00

sni_53c710.c

misc latin1 to utf8 conversions

2012-01-02 13:04:55 +01:00

sr_ioctl.c

scsi: Fix up files implicitly depending on module.h inclusion

2011-10-31 19:31:24 -04:00

sr_vendor.c

…

sr.c

[SCSI] sr: check_events() ignore GET_EVENT when TUR says otherwise

2011-07-21 14:15:58 -07:00

sr.h

[SCSI] sr: check_events() ignore GET_EVENT when TUR says otherwise

2011-07-21 14:15:58 -07:00

st_options.h

…

st.c

[SCSI] st: remove st_mutex

2012-09-24 13:07:02 +04:00

st.h

[SCSI] st: raise device limit

2012-09-14 17:59:29 +01:00

stex.c

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

storvsc_drv.c

[SCSI] storvsc: Account for in-transit packets in the RESET path

2012-10-09 12:28:58 +01:00

sun3_NCR5380.c

[SCSI] sun3: Remove commented out merge_contiguous_buffers

2011-06-29 15:15:05 -05:00

sun3_scsi_vme.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

sun3_scsi.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

sun3_scsi.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

sun3x_esp.c

…

sun_esp.c

dt/sparc: Eliminate users of of_platform_{,un}register_driver

2011-02-28 01:36:39 -07:00

sym53c416.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

sym53c416.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

t128.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

t128.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

tmscsim.c

[SCSI] remove cmd->serial_number litter

2011-05-01 10:22:40 -05:00

tmscsim.h

…

u14-34f.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

ultrastor.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

ultrastor.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

virtio_scsi.c

[SCSI] virtio-scsi: support online resizing of disks

2012-10-09 11:24:47 +01:00

vmw_pvscsi.c

scsi: fix various printk and comment typos

2012-09-01 08:24:35 -07:00

vmw_pvscsi.h

[SCSI] vmw_pvscsi: Try setting host->max_id as suggested by the device.

2012-03-27 08:26:36 +01:00

wd33c93.c

Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6

2011-05-26 13:19:00 -07:00

wd33c93.h

SCSI host lock push-down

2010-11-16 13:33:23 -08:00

wd7000.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

zalon.c

…

zorro7xx.c

…