linux.git/drivers/infiniband/ulp/srpt, branch v5.4.93

RDMA/srpt: Report the SCSI residual to the initiator

2020-01-17T18:48:40+00:00

commit e88982ad1bb12db699de96fbc07096359ef6176c upstream.

The code added by this patch is similar to the code that already exists in
ibmvscsis_determine_resid(). This patch has been tested by running the
following command:

strace sg_raw -r 1k /dev/sdb 12 00 00 00 60 00 -o inquiry.bin |&
    grep resid=

Link: https://lore.kernel.org/r/20191105214632.183302-1-bvanassche@acm.org
Fixes: a42d985bd5b2 ("ib_srpt: Initial SRP Target merge for v3.3-rc1")
Signed-off-by: Bart Van Assche 
Acked-by: Honggang Li 
Signed-off-by: Jason Gunthorpe 
Signed-off-by: Greg Kroah-Hartman

rdma: Enable ib_alloc_cq to spread work over a device's comp_vectors

2019-08-05T15:50:32+00:00

Send and Receive completion is handled on a single CPU selected at
the time each Completion Queue is allocated. Typically this is when
an initiator instantiates an RDMA transport, or when a target
accepts an RDMA connection.

Some ULPs cannot open a connection per CPU to spread completion
workload across available CPUs and MSI vectors. For such ULPs,
provide an API that allows the RDMA core to select a completion
vector based on the device's complement of available comp_vecs.

ULPs that invoke ib_alloc_cq() with only comp_vector 0 are converted
to use the new API so that their completion workloads interfere less
with each other.

Suggested-by: Håkon Bugge 
Signed-off-by: Chuck Lever 
Reviewed-by: Leon Romanovsky 
Cc: 
Cc: 
Link: https://lore.kernel.org/r/20190729171923.13428.52555.stgit@manet.1015granger.net
Signed-off-by: Doug Ledford

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2019-03-10T00:53:47+00:00

Pull SCSI updates from James Bottomley:
 "This is mostly update of the usual drivers: arcmsr, qla2xxx, lpfc,
  hisi_sas, target/iscsi and target/core.

  Additionally Christoph refactored gdth as part of the dma changes. The
  major mid-layer change this time is the removal of bidi commands and
  with them the whole of the osd/exofs driver and filesystem. This is a
  major simplification for block and mq in particular"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (240 commits)
  scsi: cxgb4i: validate tcp sequence number only if chip version <= T5
  scsi: cxgb4i: get pf number from lldi->pf
  scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c
  scsi: mpt3sas: Add missing breaks in switch statements
  scsi: aacraid: Fix missing break in switch statement
  scsi: kill command serial number
  scsi: csiostor: drop serial_number usage
  scsi: mvumi: use request tag instead of serial_number
  scsi: dpt_i2o: remove serial number usage
  scsi: st: osst: Remove negative constant left-shifts
  scsi: ufs-bsg: Allow reading descriptors
  scsi: ufs: Allow reading descriptor via raw upiu
  scsi: ufs-bsg: Change the calling convention for write descriptor
  scsi: ufs: Remove unused device quirks
  Revert "scsi: ufs: disable vccq if it's not needed by UFS device"
  scsi: megaraid_sas: Remove a bunch of set but not used variables
  scsi: clean obsolete return values of eh_timed_out
  scsi: sd: Optimal I/O size should be a multiple of physical block size
  scsi: MAINTAINERS: SCSI initiator and target tweaks
  scsi: fcoe: make use of fip_mode enum complete
  ...

scsi: RDMA/srpt: Fix a credit leak for aborted commands

2019-02-05T02:32:01+00:00

Make sure that the next time a response is sent to the initiator that the
credit it had allocated for the aborted request gets freed.

Cc: Doug Ledford 
Cc: Jason Gunthorpe 
Cc: Nicholas Bellinger 
Cc: Mike Christie 
Cc: Hannes Reinecke 
Cc: Christoph Hellwig 
Fixes: 131e6abc674e ("target: Add TFO->abort_task for aborted task resources release") # v3.15
Signed-off-by: Bart Van Assche 
Signed-off-by: Martin K. Petersen

scsi: RDMA/srpt: Rework I/O context allocation

2019-02-05T02:31:37+00:00

Instead of maintaining a list of free I/O contexts, use an sbitmap data
structure to track which I/O contexts are in use and which are free. This
makes the ib_srpt driver more consistent with other LIO drivers.

Cc: Doug Ledford 
Cc: Jason Gunthorpe 
Cc: Nicholas Bellinger 
Cc: Mike Christie 
Cc: Hannes Reinecke 
Cc: Christoph Hellwig 
Signed-off-by: Bart Van Assche 
Signed-off-by: Martin K. Petersen

scsi: RDMA/srpt: Fix handling of TMF submission failure

2019-02-05T02:30:37+00:00

If submitting a TMF to the target core fails, send the "FUNCTION REJECTED"
response to the initiator.

Reviewed-by: Hannes Reinecke 
Cc: Doug Ledford 
Cc: Jason Gunthorpe 
Cc: Nicholas Bellinger 
Cc: Mike Christie 
Cc: Christoph Hellwig 
Signed-off-by: Bart Van Assche 
Signed-off-by: Martin K. Petersen

scsi: RDMA/srpt: Fix handling of command / TMF submission failure

2019-02-05T02:29:45+00:00

If submitting an SRP IU to the target core fails, send the SCSI response
"BUSY" to the initiator instead of not sending any response.

Reviewed-by: Hannes Reinecke 
Cc: Doug Ledford 
Cc: Jason Gunthorpe 
Cc: Nicholas Bellinger 
Cc: Mike Christie 
Cc: Christoph Hellwig 
Signed-off-by: Bart Van Assche 
Signed-off-by: Martin K. Petersen

scsi: target/core: Remove the write_pending_status() callback function

2019-02-05T02:23:59+00:00

Due to the patch that makes TMF handling synchronous the
write_pending_status() callback function is no longer called.  Hence remove
it.

Acked-by: Felipe Balbi 
Reviewed-by: Sagi Grimberg 
Reviewed-by: Andy Grover 
Reviewed-by: Christoph Hellwig 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Bryant G. Ly 
Cc: Nicholas Bellinger 
Cc: Mike Christie 
Cc: Himanshu Madhani 
Cc: Quinn Tran 
Cc: Saurav Kashyap 
Cc: Michael S. Tsirkin 
Cc: Juergen Gross 
Signed-off-by: Bart Van Assche 
Signed-off-by: Martin K. Petersen

infiniband: remove unneeded header search paths

2019-01-25T22:28:50+00:00

The included headers are located in include/target/. I was able to
build these drivers without the extra header search paths.

Signed-off-by: Masahiro Yamada 
Reviewed-by: Bart Van Assche 
Signed-off-by: Jason Gunthorpe