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<title>lwn.git/drivers/scsi/aacraid/linit.c, branch v5.3-rc1</title>
<subtitle>Linux kernel documentation tree maintained by Jonathan Corbet</subtitle>
<id>http://mirrors.hust.edu.cn/git/lwn.git/atom?h=v5.3-rc1</id>
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<updated>2019-05-21T09:28:46+00:00</updated>
<entry>
<title>treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18</title>
<updated>2019-05-21T09:28:46+00:00</updated>
<author>
<name>Thomas Gleixner</name>
<email>tglx@linutronix.de</email>
</author>
<published>2019-05-19T13:51:48+00:00</published>
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<id>urn:sha1:c82ee6d3beaa489058c1fe1ca710042a07df9d40</id>
<content type='text'>
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 or at your option any
  later version this program is distributed in the hope that it will
  be useful but without any warranty without even the implied warranty
  of merchantability or fitness for a particular purpose see the gnu
  general public license for more details you should have received a
  copy of the gnu general public license along with this program see
  the file copying if not write to the free software foundation 675
  mass ave cambridge ma 02139 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 52 file(s).

Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Reviewed-by: Jilayne Lovejoy &lt;opensource@jilayne.com&gt;
Reviewed-by: Steve Winslow &lt;swinslow@gmail.com&gt;
Reviewed-by: Kate Stewart &lt;kstewart@linuxfoundation.org&gt;
Reviewed-by: Allison Randal &lt;allison@lohutok.net&gt;
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154042.342335923@linutronix.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
</entry>
<entry>
<title>Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi</title>
<updated>2019-03-16T19:51:50+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-03-16T19:51:50+00:00</published>
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<id>urn:sha1:477558d7e8d82b59a650e193a5651cf25b794dbc</id>
<content type='text'>
Pull more SCSI updates from James Bottomley:
 "This is the final round of mostly small fixes and performance
  improvements to our initial submit.

  The main regression fix is the ia64 simscsi build failure which was
  missed in the serial number elimination conversion"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (24 commits)
  scsi: ia64: simscsi: use request tag instead of serial_number
  scsi: aacraid: Fix performance issue on logical drives
  scsi: lpfc: Fix error codes in lpfc_sli4_pci_mem_setup()
  scsi: libiscsi: Hold back_lock when calling iscsi_complete_task
  scsi: hisi_sas: Change SERDES_CFG init value to increase reliability of HiLink
  scsi: hisi_sas: Send HARD RESET to clear the previous affiliation of STP target port
  scsi: hisi_sas: Set PHY linkrate when disconnected
  scsi: hisi_sas: print PHY RX errors count for later revision of v3 hw
  scsi: hisi_sas: Fix a timeout race of driver internal and SMP IO
  scsi: hisi_sas: Change return variable type in phy_up_v3_hw()
  scsi: qla2xxx: check for kstrtol() failure
  scsi: lpfc: fix 32-bit format string warning
  scsi: lpfc: fix unused variable warning
  scsi: target: tcmu: Switch to bitmap_zalloc()
  scsi: libiscsi: fall back to sendmsg for slab pages
  scsi: qla2xxx: avoid printf format warning
  scsi: lpfc: resolve static checker warning in lpfc_sli4_hba_unset
  scsi: lpfc: Correct __lpfc_sli_issue_iocb_s4 lockdep check
  scsi: ufs: hisi: fix ufs_hba_variant_ops passing
  scsi: qla2xxx: Fix panic in qla_dfs_tgt_counters_show
  ...
</content>
</entry>
<entry>
<title>scsi: aacraid: Fix performance issue on logical drives</title>
<updated>2019-03-14T11:16:36+00:00</updated>
<author>
<name>Sagar Biradar</name>
<email>sagar.biradar@microchip.com</email>
</author>
<published>2019-03-08T07:26:41+00:00</published>
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<id>urn:sha1:0015437cc046e5ec2b57b00ff8312b8d432eac7c</id>
<content type='text'>
Fix performance issue where the queue depth for SmartIOC logical volumes is
set to 1, and allow the usual logical volume code to be executed

Fixes: a052865fe287 (aacraid: Set correct Queue Depth for HBA1000 RAW disks)
Cc: stable@vger.kernel.org
Signed-off-by: Sagar Biradar &lt;Sagar.Biradar@microchip.com&gt;
Reviewed-by: Dave Carroll &lt;david.carroll@microsemi.com&gt;
Signed-off-by: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
</content>
</entry>
<entry>
<title>Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi</title>
<updated>2019-03-10T00:53:47+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-03-10T00:53:47+00:00</published>
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<id>urn:sha1:92fff53b7191cae566be9ca6752069426c7f8241</id>
<content type='text'>
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 &lt;= T5
  scsi: cxgb4i: get pf number from lldi-&gt;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
  ...
</content>
</entry>
<entry>
<title>scsi: ata: Use unsigned int for cmd's type in ioctls in scsi_host_template</title>
<updated>2019-02-08T22:33:00+00:00</updated>
<author>
<name>Nathan Chancellor</name>
<email>natechancellor@gmail.com</email>
</author>
<published>2019-02-07T16:07:20+00:00</published>
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<id>urn:sha1:6f4e626fb0cc93d50b49b79c2ee33bd769ee57f0</id>
<content type='text'>
Clang warns several times in the scsi subsystem (trimmed for brevity):

drivers/scsi/hpsa.c:6209:7: warning: overflow converting case value to
switch condition type (2147762695 to 18446744071562347015) [-Wswitch]
        case CCISS_GETBUSTYPES:
             ^
drivers/scsi/hpsa.c:6208:7: warning: overflow converting case value to
switch condition type (2147762694 to 18446744071562347014) [-Wswitch]
        case CCISS_GETHEARTBEAT:
             ^

The root cause is that the _IOC macro can generate really large numbers,
which don't fit into type 'int', which is used for the cmd parameter in
the ioctls in scsi_host_template. My research into how GCC and Clang are
handling this at a low level didn't prove fruitful. However, looking at
the rest of the kernel tree, all ioctls use an 'unsigned int' for the
cmd parameter, which will fit all of the _IOC values in the scsi/ata
subsystems.

Make that change because none of the ioctls expect a negative value for
any command, it brings the ioctls inline with the reset of the kernel,
and it removes ambiguity, which is never good when dealing with compilers.

Link: https://github.com/ClangBuiltLinux/linux/issues/85
Link: https://github.com/ClangBuiltLinux/linux/issues/154
Link: https://github.com/ClangBuiltLinux/linux/issues/157
Signed-off-by: Nathan Chancellor &lt;natechancellor@gmail.com&gt;
Acked-by: Bradley Grove &lt;bgrove@attotech.com&gt;
Acked-by: Don Brace &lt;don.brace@microsemi.com&gt;
Reviewed-by: Bart Van Assche &lt;bvanassche@acm.org&gt;
Tested-by: Nick Desaulniers &lt;ndesaulniers@google.com&gt;
Reviewed-by: Christoph Hellwig &lt;hch@lst.de&gt;
Signed-off-by: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
</content>
</entry>
<entry>
<title>scsi: aacraid: clean up some indentation and formatting issues</title>
<updated>2019-02-05T03:18:41+00:00</updated>
<author>
<name>Colin Ian King</name>
<email>colin.king@canonical.com</email>
</author>
<published>2019-02-02T10:40:52+00:00</published>
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<id>urn:sha1:e13949aef43a3cf9658fbfbe41803bd04ff82cfd</id>
<content type='text'>
There are several issues with badly indented statements. Fix these
and clean up the formatting.

Signed-off-by: Colin Ian King &lt;colin.king@canonical.com&gt;
Acked-by: Mahesh Rajashekhara &lt;mahesh.rajashekhara@microchip.com&gt;
Signed-off-by: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
</content>
</entry>
<entry>
<title>scsi: communicate max segment size to the DMA mapping code</title>
<updated>2019-01-23T01:40:59+00:00</updated>
<author>
<name>Christoph Hellwig</name>
<email>hch@lst.de</email>
</author>
<published>2019-01-16T16:12:15+00:00</published>
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<id>urn:sha1:a8cf59a6692c9c55a5a10257de97919fae6edef8</id>
<content type='text'>
When a host driver sets a maximum segment size we should not only propagate
that setting to the block layer, which can merge segments, but also to the
DMA mapping layer which can merge segments as well.

Fixes: 50c2e9107f ("scsi: introduce a max_segment_size host_template parameters")
Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Signed-off-by: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
</content>
</entry>
<entry>
<title>scsi: flip the default on use_clustering</title>
<updated>2018-12-19T04:13:12+00:00</updated>
<author>
<name>Christoph Hellwig</name>
<email>hch@lst.de</email>
</author>
<published>2018-12-13T15:17:02+00:00</published>
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<id>urn:sha1:2a3d4eb8e228061c09d5ca8bf39e7f00c2091213</id>
<content type='text'>
Most SCSI drivers want to enable "clustering", that is merging of
segments so that they might span more than a single page.  Remove the
ENABLE_CLUSTERING define, and require drivers to explicitly set
DISABLE_CLUSTERING to disable this feature.

Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Signed-off-by: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
</content>
</entry>
<entry>
<title>scsi: aacraid: change event_wait to a completion</title>
<updated>2018-12-13T01:35:33+00:00</updated>
<author>
<name>Arnd Bergmann</name>
<email>arnd@arndb.de</email>
</author>
<published>2018-12-10T21:32:41+00:00</published>
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<id>urn:sha1:bc127d93e4eca0f45caf2e68e9aeb06284b15b86</id>
<content type='text'>
The event_wait semaphore has completion semantics, so we can
change it over to the completion interface for clarity without
changing the behavior.

Signed-off-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Reviewed-by: Johannes Thumshirn &lt;jthumshirn@suse.de&gt;
Reviewed-by: Dave Carroll &lt;david.carroll@microsemi.com&gt;
Signed-off-by: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
</content>
</entry>
<entry>
<title>scsi: aacraid: Mark expected switch fall-through</title>
<updated>2018-11-29T02:47:30+00:00</updated>
<author>
<name>Gustavo A. R. Silva</name>
<email>gustavo@embeddedor.com</email>
</author>
<published>2018-11-28T04:26:09+00:00</published>
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<id>urn:sha1:c121c57a45ec048d1f3c70b20727fcf400237058</id>
<content type='text'>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva &lt;gustavo@embeddedor.com&gt;
Reviewed-by: Dave Carroll &lt;david.carroll@microsemi.com&gt;
Signed-off-by: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
</content>
</entry>
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