kernel/include/scsi/scsi.h, branch linux-3.17.y

lib/scatterlist: make ARCH_HAS_SG_CHAIN an actual Kconfig

2014-08-08T22:57:26Z

Rather than have architectures #define ARCH_HAS_SG_CHAIN in an architecture specific scatterlist.h, make it a proper Kconfig option and use that instead. At same time, remove the header files are are now mostly useless and just include asm-generic/scatterlist.h. [sfr@canb.auug.org.au: powerpc files now need asm/dma.h] Signed-off-by: Laura Abbott Acked-by: Thomas Gleixner [x86] Acked-by: Benjamin Herrenschmidt [powerpc] Acked-by: Heiko Carstens Cc: Russell King Cc: Tony Luck Cc: Fenghua Yu Cc: Paul Mackerras Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: "James E.J. Bottomley" Cc: Martin Schwidefsky Signed-off-by: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

scsi: add a symbolic name for the ZBC device type

2014-07-25T21:16:40Z

Make sure we have a symbolic name for the ZBC type available, so that e.g. patch for a SATA to translate ZAC commands can make use of it. Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Reviewed-by: Martin K. Petersen

scsi: use 64-bit LUNs

2014-07-17T20:07:37Z

The SCSI standard defines 64-bit values for LUNs, and large arrays employing large or hierarchical LUN numbers become more and more common. So update the linux SCSI stack to use 64-bit LUN numbers. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Reviewed-by: Ewan Milne Signed-off-by: Christoph Hellwig

target_core_alua: Referrals infrastructure

2014-01-10T05:48:17Z

Add infrastructure for referrals. v2 changes: - Fix unsigned long long division in core_alua_state_lba_dependent on 32-bit (Fengguang + Chen + Hannes) - Fix compile warning in core_alua_state_lba_dependent (nab) - Convert segment_* + sectors variables in core_alua_state_lba_dependent to u64 (Hannes) Signed-off-by: Hannes Reinecke Signed-off-by: Nicholas Bellinger

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

2013-09-12T23:11:45Z

Pull SCSI target updates from Nicholas Bellinger: "Lots of activity again this round for I/O performance optimizations (per-cpu IDA pre-allocation for vhost + iscsi/target), and the addition of new fabric independent features to target-core (COMPARE_AND_WRITE + EXTENDED_COPY). The main highlights include: - Support for iscsi-target login multiplexing across individual network portals - Generic Per-cpu IDA logic (kent + akpm + clameter) - Conversion of vhost to use per-cpu IDA pre-allocation for descriptors, SGLs and userspace page pointer list - Conversion of iscsi-target + iser-target to use per-cpu IDA pre-allocation for descriptors - Add support for generic COMPARE_AND_WRITE (AtomicTestandSet) emulation for virtual backend drivers - Add support for generic EXTENDED_COPY (CopyOffload) emulation for virtual backend drivers. - Add support for fast memory registration mode to iser-target (Vu) The patches to add COMPARE_AND_WRITE and EXTENDED_COPY support are of particular significance, which make us the first and only open source target to support the full set of VAAI primitives. Currently Linux clients are lacking upstream support to actually utilize these primitives. However, with server side support now in place for folks like MKP + ZAB working on the client, this logic once reserved for the highest end of storage arrays, can now be run in VMs on their laptops" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (50 commits) target/iscsi: Bump versions to v4.1.0 target: Update copyright ownership/year information to 2013 iscsi-target: Bump default TCP listen backlog to 256 target: Fix >= v3.9+ regression in PR APTPL + ALUA metadata write-out iscsi-target; Bump default CmdSN Depth to 64 iscsi-target: Remove unnecessary wait_for_completion in iscsi_get_thread_set iscsi-target: Add thread_set->ts_activate_sem + use common deallocate iscsi-target: Fix race with thread_pre_handler flush_signals + ISCSI_THREAD_SET_DIE target: remove unused including iser-target: introduce fast memory registration mode (FRWR) iser-target: generalize rdma memory registration and cleanup iser-target: move rdma wr processing to a shared function target: Enable global EXTENDED_COPY setup/release target: Add Third Party Copy (3PC) bit in INQUIRY response target: Enable EXTENDED_COPY setup in spc_parse_cdb target: Add support for EXTENDED_COPY copy offload emulation target: Avoid non-existent tg_pt_gp_mem in target_alua_state_check target: Add global device list for EXTENDED_COPY target: Make helpers non static for EXTENDED_COPY command setup target: Make spc_parse_naa_6h_vendor_specific non static ...

scsi: Add CDB definition for COMPARE_AND_WRITE

2013-09-09T21:29:24Z

Reviewed-by: Christoph Hellwig Cc: Hannes Reinecke Cc: Martin Petersen Cc: Chris Mason Cc: James Bottomley Cc: Nicholas Bellinger Signed-off-by: Nicholas Bellinger

[SCSI] Return ENODATA on medium error

2013-08-23T16:54:53Z

When a medium error is detected the SCSI stack should return ENODATA to the upper layers. [jejb: fix whitespace error] Signed-off-by: Hannes Reinecke Signed-off-by: James Bottomley

[SCSI] return ENOSPC on thin provisioning failure

2013-08-23T16:43:54Z

When the thin provisioning hard threshold is reached we should return ENOSPC to inform upper layers about this fact. Signed-off-by: Hannes Reinecke Signed-off-by: James Bottomley

[SCSI] Set hostbyte status in scsi_check_sense()

2013-08-23T16:34:56Z

We should be modifying the host_byte status in scsi_check_sense() directly; this saves us to introduce a special return code for each and every condition. Signed-off-by: Hannes Reinecke Signed-off-by: James Bottomley

[SCSI] Allow error handling timeout to be specified

2013-06-04T18:16:24Z

Introduce eh_timeout which can be used for error handling purposes. This was previously hardcoded to 10 seconds in the SCSI error handling code. However, for some fast-fail scenarios it is necessary to be able to tune this as it can take several iterations (bus device, target, bus, controller) before we give up. Signed-off-by: Martin K. Petersen Signed-off-by: James Bottomley