Commit Graph
498 Commits
Author SHA1 Message Date
Linus Torvalds d49f8a52b1 Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
 "This is mostly updates of the usual drivers: UFS, esp_scsi, NCR5380,
  qla2xxx, lpfc, libsas, hisi_sas.

  In addition there's a set of mostly small updates to the target
  subsystem a set of conversions to the generic DMA API, which do have
  some potential for issues in the older drivers but we'll handle those
  as case by case fixes.

  A new myrs driver for the DAC960/mylex raid controllers to replace the
  block based DAC960 which is also being removed by Jens in this merge
  window.

  Plus the usual slew of trivial changes"

[ "myrs" stands for "MYlex Raid Scsi". Obviously. Silly of me to even
  wonder. There's also a "myrb" driver, where the 'b' stands for
  'block'. Truly, somebody has got mad naming skillz. - Linus ]

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (237 commits)
  scsi: myrs: Fix the processor absent message in processor_show()
  scsi: myrs: Fix a logical vs bitwise bug
  scsi: hisi_sas: Fix NULL pointer dereference
  scsi: myrs: fix build failure on 32 bit
  scsi: fnic: replace gross legacy tag hack with blk-mq hack
  scsi: mesh: switch to generic DMA API
  scsi: ips: switch to generic DMA API
  scsi: smartpqi: fully convert to the generic DMA API
  scsi: vmw_pscsi: switch to generic DMA API
  scsi: snic: switch to generic DMA API
  scsi: qla4xxx: fully convert to the generic DMA API
  scsi: qla2xxx: fully convert to the generic DMA API
  scsi: qla1280: switch to generic DMA API
  scsi: qedi: fully convert to the generic DMA API
  scsi: qedf: fully convert to the generic DMA API
  scsi: pm8001: switch to generic DMA API
  scsi: nsp32: switch to generic DMA API
  scsi: mvsas: fully convert to the generic DMA API
  scsi: mvumi: switch to generic DMA API
  scsi: mpt3sas: switch to generic DMA API
  ...
2018-10-25 07:40:30 -07:00
Bjorn Helgaas ee8360fdaf Merge branch 'pci/misc'
- Remove unused Netronome NFP32xx Device IDs (Jakub Kicinski)

  - Use bitmap_zalloc() for dma_alias_mask (Andy Shevchenko)

  - Add switch fall-through annotations (Gustavo A. R. Silva)

  - Remove unused Switchtec quirk variable (Joshua Abraham)

  - Fix pci.c kernel-doc warning (Randy Dunlap)

  - Remove trivial PCI wrappers for DMA APIs (Christoph Hellwig)

  - Add Intel GPU device IDs to spurious interrupt quirk (Bin Meng)

  - Run Switchtec DMA aliasing quirk only on NTB endpoints to avoid useless
    dmesg errors (Logan Gunthorpe)

  - Update Switchtec NTB documentation (Wesley Yung)

  - Remove redundant "default n" from Kconfig (Bartlomiej Zolnierkiewicz)

* pci/misc:
  PCI: pcie: Remove redundant 'default n' from Kconfig
  NTB: switchtec_ntb: Update switchtec documentation with prerequisites for NTB
  PCI: Fix Switchtec DMA aliasing quirk dmesg noise
  PCI: Add macro for Switchtec quirk declarations
  PCI: Add Device IDs for Intel GPU "spurious interrupt" quirk
  PCI: Remove pci_set_dma_max_seg_size()
  PCI: Remove pci_set_dma_seg_boundary()
  PCI: Remove pci_unmap_addr() wrappers for DMA API
  PCI / ACPI: Mark expected switch fall-through
  PCI: Remove set but unused variable
  PCI: Fix pci.c kernel-doc parameter warning
  PCI: Allocate dma_alias_mask with bitmap_zalloc()
  PCI: Remove unused NFP32xx IDs
2018-10-20 11:45:30 -05:00
Christoph Hellwig b0da3498c5 PCI: Remove pci_set_dma_max_seg_size()
The few callers can just use dma_set_max_seg_size ()directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-10-10 15:47:00 -05:00
Oza Pawandeep 62b36c3ea6 PCI/AER: Remove pci_cleanup_aer_uncorrect_error_status() calls
After bfcb79fca1 ("PCI/ERR: Run error recovery callbacks for all affected
devices"), AER errors are always cleared by the PCI core and drivers don't
need to do it themselves.

Remove calls to pci_cleanup_aer_uncorrect_error_status() from device
driver error recovery functions.

Signed-off-by: Oza Pawandeep <poza@codeaurora.org>
[bhelgaas: changelog, remove PCI core changes, remove unused variables]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-10-02 16:04:40 -05:00
Colin Ian King 05a9874426 scsi: aacraid: remove unused variables dev and cpu
Variables dev and cpu are not being used and are redundant and hence can
be removed.

Cleans up clang warnings:
warning: variable 'dev' set but not used [-Wunused-but-set-variable]
warning: variable 'cpu' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-30 07:25:03 -04:00
Dan Carpenter b9eb3b14f1 scsi: aacraid: fix a signedness bug
The problem is that ->reset_state is a u8 but it can be set to -1 or -2 in
aac_tmf_callback() and the error handling in aac_eh_target_reset() relies
on it to be signed.

[mkp: fixed typo]

Fixes: 0d643ff3c3 ("scsi: aacraid: use aac_tmf_callback for reset fib")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-27 13:17:00 -04:00
Linus Torvalds 72f02ba66b Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
 "This is mostly updates to the usual drivers: mpt3sas, lpfc, qla2xxx,
  hisi_sas, smartpqi, megaraid_sas, arcmsr.

  In addition, with the continuing absence of Nic we have target updates
  for tcmu and target core (all with reviews and acks).

  The biggest observable change is going to be that we're (again) trying
  to switch to mulitqueue as the default (a user can still override the
  setting on the kernel command line).

  Other major core stuff is the removal of the remaining Microchannel
  drivers, an update of the internal timers and some reworks of
  completion and result handling"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (203 commits)
  scsi: core: use blk_mq_run_hw_queues in scsi_kick_queue
  scsi: ufs: remove unnecessary query(DM) UPIU trace
  scsi: qla2xxx: Fix issue reported by static checker for qla2x00_els_dcmd2_sp_done()
  scsi: aacraid: Spelling fix in comment
  scsi: mpt3sas: Fix calltrace observed while running IO & reset
  scsi: aic94xx: fix an error code in aic94xx_init()
  scsi: st: remove redundant pointer STbuffer
  scsi: qla2xxx: Update driver version to 10.00.00.08-k
  scsi: qla2xxx: Migrate NVME N2N handling into state machine
  scsi: qla2xxx: Save frame payload size from ICB
  scsi: qla2xxx: Fix stalled relogin
  scsi: qla2xxx: Fix race between switch cmd completion and timeout
  scsi: qla2xxx: Fix Management Server NPort handle reservation logic
  scsi: qla2xxx: Flush mailbox commands on chip reset
  scsi: qla2xxx: Fix unintended Logout
  scsi: qla2xxx: Fix session state stuck in Get Port DB
  scsi: qla2xxx: Fix redundant fc_rport registration
  scsi: qla2xxx: Silent erroneous message
  scsi: qla2xxx: Prevent sysfs access when chip is down
  scsi: qla2xxx: Add longer window for chip reset
  ...
2018-08-15 22:06:26 -07:00
Dongliang Mu d98e000cc7 scsi: aacraid: Spelling fix in comment
requesed -> requested

Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-08 21:32:43 -04:00
Johannes Thumshirn 2d362b8ad5 scsi: aacraid: remove AAC_STAT_GOOD define
Remove the AAC_STAT_GOOD definition and open code it in the places it was
used.

This will make subsequent refactoring in this area easier.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Dave Carroll <david.carroll@microsemi.com>
Cc: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10 22:42:47 -04:00
Raghava Aditya Renukunta 59b433c825 scsi: aacraid: Fix PD performance regression over incorrect qd being set
The driver fails to set the correct queue depth for native devices, due to
failing to set the device type prior to calling aac_set_safw_target_qd().
This results in slave configure setting the queue depth to 1.

This causes around 30% performance degradation. Fixed by setting the dev
type before trying to set queue depth.

Reported-by: Steve Best <sbest@redhat.com>
Fixes: 0bcb45fb20 ("scsi: aacraid: Add helper function to set queue depth")
cc: stable@vger.kernel.org
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-06-26 12:06:09 -04:00
Arnd Bergmann 38150f7a68 scsi: aacraid: stop using deprated get_seconds()
get_seconds() can overflow on 32-bit architectures and is deprecated
because of that. The use in the aacraid driver has the same problem due to
a limited firmware interface, it also overflows in the year 2106.

This changes all calls to get_seconds() to the non-deprecated
ktime_get_real_seconds(), which unfortunately doesn't solve that problem
but gets rid of one user of the deprecated interface.

[mkp: checkpatch]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-06-26 11:57:01 -04:00
Linus Torvalds 2837461dbe Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
 "This is a set of minor (and safe changes) that didn't make the initial
  pull request plus some bug fixes"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla2xxx: Mask off Scope bits in retry delay
  scsi: qla2xxx: Fix crash on qla2x00_mailbox_command
  scsi: aic7xxx: aic79xx: fix potential null pointer dereference on ahd
  scsi: mpt3sas: Add an I/O barrier
  scsi: qla2xxx: Fix setting lower transfer speed if GPSC fails
  scsi: hpsa: disable device during shutdown
  scsi: sd_zbc: Fix sd_zbc_check_zone_size() error path
  scsi: aacraid: remove bogus GFP_DMA32 specifies
2018-06-14 16:35:32 +09:00
Kees Cook 6396bb2215 treewide: kzalloc() -> kcalloc()
The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:

        kzalloc(a * b, gfp)

with:
        kcalloc(a * b, gfp)

as well as handling cases of:

        kzalloc(a * b * c, gfp)

with:

        kzalloc(array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        kzalloc_array(array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        kzalloc(4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  kzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  kzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  kzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

- kzalloc
+ kcalloc
  (
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  kzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  kzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  kzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  kzalloc(sizeof(THING) * C2, ...)
|
  kzalloc(sizeof(TYPE) * C2, ...)
|
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * E2
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00
Kees Cook 6da2ec5605 treewide: kmalloc() -> kmalloc_array()
The kmalloc() function has a 2-factor argument form, kmalloc_array(). This
patch replaces cases of:

        kmalloc(a * b, gfp)

with:
        kmalloc_array(a * b, gfp)

as well as handling cases of:

        kmalloc(a * b * c, gfp)

with:

        kmalloc(array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        kmalloc_array(array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        kmalloc(4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The tools/ directory was manually excluded, since it has its own
implementation of kmalloc().

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  kmalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  kmalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  kmalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

- kmalloc
+ kmalloc_array
  (
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  kmalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kmalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kmalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kmalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kmalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kmalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kmalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kmalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  kmalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kmalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kmalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kmalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kmalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  kmalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  kmalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  kmalloc(C1 * C2 * C3, ...)
|
  kmalloc(
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kmalloc(
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kmalloc(
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  kmalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  kmalloc(sizeof(THING) * C2, ...)
|
  kmalloc(sizeof(TYPE) * C2, ...)
|
  kmalloc(C1 * C2 * C3, ...)
|
  kmalloc(C1 * C2, ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	(E1) * E2
+	E1, E2
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00
Christoph Hellwig a0c1c185fb scsi: aacraid: remove bogus GFP_DMA32 specifies
For one GFP_DMA32 does not actually work with kmalloc, as we only have
GFP_DMA and GFP_KERNEL caches, but not GFP_DMA32.  Second the memory
is mapped using the proper DMA API anyway, which would include proper
bounce buffering if needed by the device.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-06-05 21:15:08 -04:00
Dave Carroll 7d3af7d96a scsi: aacraid: Correct hba_send to include iu_type
commit b60710ec7d ("scsi: aacraid: enable sending of TMFs from
aac_hba_send()") allows aac_hba_send() to send scsi commands, and TMF
requests, but the existing code only updates the iu_type for scsi
commands. For TMF requests we are sending an unknown iu_type to
firmware, which causes a fault.

Include iu_type prior to determining the validity of the command

Reported-by: Noah Misner <nmisner@us.ibm.com>
Fixes: b60710ec7d ("aacraid: enable sending of TMFs from aac_hba_send()")
Fixes: 423400e64d ("aacraid: Include HBA direct interface")
Tested-by: Noah Misner <nmisner@us.ibm.com>
cc: stable@vger.kernel.org
Signed-off-by: Dave Carroll <david.carroll@microsemi.com>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-01 23:27:18 -04:00
Dave Carroll 1c6b41fb92 scsi: aacraid: Insure command thread is not recursively stopped
If a recursive IOP_RESET is invoked, usually due to the eh_thread
handling errors after the first reset, be sure we flag that the command
thread has been stopped to avoid an Oops of the form;

 [ 336.620256] CPU: 28 PID: 1193 Comm: scsi_eh_0 Kdump: loaded Not tainted 4.14.0-49.el7a.ppc64le #1
 [ 336.620297] task: c000003fd630b800 task.stack: c000003fd61a4000
 [ 336.620326] NIP: c000000000176794 LR: c00000000013038c CTR: c00000000024bc10
 [ 336.620361] REGS: c000003fd61a7720 TRAP: 0300 Not tainted (4.14.0-49.el7a.ppc64le)
 [ 336.620395] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 22084022 XER: 20040000
 [ 336.620435] CFAR: c000000000130388 DAR: 0000000000000000 DSISR: 40000000 SOFTE: 1
 [ 336.620435] GPR00: c00000000013038c c000003fd61a79a0 c0000000014c7e00 0000000000000000
 [ 336.620435] GPR04: 000000000000000c 000000000000000c 9000000000009033 0000000000000477
 [ 336.620435] GPR08: 0000000000000477 0000000000000000 0000000000000000 c008000010f7d940
 [ 336.620435] GPR12: c00000000024bc10 c000000007a33400 c0000000001708a8 c000003fe3b881d8
 [ 336.620435] GPR16: c000003fe3b88060 c000003fd61a7d10 fffffffffffff000 000000000000001e
 [ 336.620435] GPR20: 0000000000000001 c000000000ebf1a0 0000000000000001 c000003fe3b88000
 [ 336.620435] GPR24: 0000000000000003 0000000000000002 c000003fe3b88840 c000003fe3b887e8
 [ 336.620435] GPR28: c000003fe3b88000 c000003fc8181788 0000000000000000 c000003fc8181700
 [ 336.620750] NIP [c000000000176794] exit_creds+0x34/0x160
 [ 336.620775] LR [c00000000013038c] __put_task_struct+0x8c/0x1f0
 [ 336.620804] Call Trace:
 [ 336.620817] [c000003fd61a79a0] [c000003fe3b88000] 0xc000003fe3b88000 (unreliable)
 [ 336.620853] [c000003fd61a79d0] [c00000000013038c] __put_task_struct+0x8c/0x1f0
 [ 336.620889] [c000003fd61a7a00] [c000000000171418] kthread_stop+0x1e8/0x1f0
 [ 336.620922] [c000003fd61a7a40] [c008000010f7448c] aac_reset_adapter+0x14c/0x8d0 [aacraid]
 [ 336.620959] [c000003fd61a7b00] [c008000010f60174] aac_eh_host_reset+0x84/0x100 [aacraid]
 [ 336.621010] [c000003fd61a7b30] [c000000000864f24] scsi_try_host_reset+0x74/0x180
 [ 336.621046] [c000003fd61a7bb0] [c000000000867ac0] scsi_eh_ready_devs+0xc00/0x14d0
 [ 336.625165] [c000003fd61a7ca0] [c0000000008699e0] scsi_error_handler+0x550/0x730
 [ 336.632101] [c000003fd61a7dc0] [c000000000170a08] kthread+0x168/0x1b0
 [ 336.639031] [c000003fd61a7e30] [c00000000000b528] ret_from_kernel_thread+0x5c/0xb4
 [ 336.645971] Instruction dump:
 [ 336.648743] 384216a0 7c0802a6 fbe1fff8 f8010010 f821ffd1 7c7f1b78 60000000 60000000
 [ 336.657056] 39400000 e87f0838 f95f0838 7c0004ac <7d401828> 314affff 7d40192d 40c2fff4
 [ 336.663997] -[ end trace 4640cf8d4945ad95 ]-

So flag when the thread is stopped by setting the thread pointer to NULL.

Signed-off-by: Dave Carroll <david.carroll@microsemi.com>
Reviewed-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-04-09 21:08:30 -04:00
Linus Torvalds 052c220da3 Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
 "This is mostly updates of the usual drivers: arcmsr, qla2xx, lpfc,
  ufs, mpt3sas, hisi_sas.

  In addition we have removed several really old drivers: sym53c416,
  NCR53c406a, fdomain, fdomain_cs and removed the old scsi_module.c
  initialization from all remaining drivers.

  Plus an assortment of bug fixes, initialization errors and other minor
  fixes"

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (168 commits)
  scsi: ufs: Add support for Auto-Hibernate Idle Timer
  scsi: ufs: sysfs: reworking of the rpm_lvl and spm_lvl entries
  scsi: qla2xxx: fx00 copypaste typo
  scsi: qla2xxx: fix error message on <qla2400
  scsi: smartpqi: update driver version
  scsi: smartpqi: workaround fw bug for oq deletion
  scsi: arcmsr: Change driver version to v1.40.00.05-20180309
  scsi: arcmsr: Sleep to avoid CPU stuck too long for waiting adapter ready
  scsi: arcmsr: Handle adapter removed due to thunderbolt cable disconnection.
  scsi: arcmsr: Rename ACB_F_BUS_HANG_ON to ACB_F_ADAPTER_REMOVED for adapter hot-plug
  scsi: qla2xxx: Update driver version to 10.00.00.06-k
  scsi: qla2xxx: Fix Async GPN_FT for FCP and FC-NVMe scan
  scsi: qla2xxx: Cleanup code to improve FC-NVMe error handling
  scsi: qla2xxx: Fix FC-NVMe IO abort during driver reset
  scsi: qla2xxx: Fix retry for PRLI RJT with reason of BUSY
  scsi: qla2xxx: Remove nvme_done_list
  scsi: qla2xxx: Return busy if rport going away
  scsi: qla2xxx: Fix n2n_ae flag to prevent dev_loss on PDB change
  scsi: qla2xxx: Add FC-NVMe abort processing
  scsi: qla2xxx: Add changes for devloss timeout in driver
  ...
2018-04-05 15:05:53 -07:00
James Bottomley 2e1f44f6ad Merge branch 'fixes' into misc
Somewhat nasty merge due to conflicts between "33b28357dd00 scsi:
qla2xxx: Fix Async GPN_FT for FCP and FC-NVMe scan" and "2b5b96473efc
scsi: qla2xxx: Fix FC-NVMe LUN discovery"

Merge is non-trivial and has been verified by Qlogic (Cavium)

Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
2018-04-03 17:38:39 -07:00
Masanari Iida bc8282a730 treewide: Fix typos in printk
This patch fixes spelling typos found in printk.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-03-27 09:51:22 +02:00
Linus Torvalds 170e07bf6b Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
 "These are mostly fixes for problems with merge window code.

  In addition we have one doc update (alua) and two dead code removals
  (aiclib and octogon) a spurious assignment removal (csiostor) and a
  performance improvement for storvsc involving better interrupt
  spreading and increasing the command per lun handling"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla4xxx: skip error recovery in case of register disconnect.
  scsi: aacraid: fix shutdown crash when init fails
  scsi: qedi: Cleanup local str variable
  scsi: qedi: Fix truncation of CHAP name and secret
  scsi: qla2xxx: Fix incorrect handle for abort IOCB
  scsi: qla2xxx: Fix double free bug after firmware timeout
  scsi: storvsc: Increase cmd_per_lun for higher speed devices
  scsi: qla2xxx: Fix a locking imbalance in qlt_24xx_handle_els()
  scsi: scsi_dh: Document alua_rtpg_queue() arguments
  scsi: Remove Makefile entry for oktagon files
  scsi: aic7xxx: remove aiclib.c
  scsi: qla2xxx: Avoid triggering undefined behavior in qla2x00_mbx_completion()
  scsi: mptfusion: Add bounds check in mptctl_hp_targetinfo()
  scsi: sym53c8xx_2: iterator underflow in sym_getsync()
  scsi: bnx2fc: Fix check in SCSI completion handler for timed out request
  scsi: csiostor: remove redundant assignment to pointer 'ln'
  scsi: ufs: Enable quirk to ignore sending WRITE_SAME command
  scsi: ibmvfc: fix misdefined reserved field in ibmvfc_fcp_rsp_info
  scsi: qla2xxx: Fix memory corruption during hba reset test
  scsi: mpt3sas: fix an out of bound write
2018-02-23 14:09:43 -08:00
Raghava Aditya Renukunta eee549e1e3 scsi: aacraid: Auto detect INTx or MSIx mode during sync cmd processing
During sync command processing, if legacy INTx status indicates command
is not completed, sample the MSIx register and check if it indicates
command completion, set controller MSIx enabled flag.

Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-13 21:37:04 -05:00
Raghava Aditya Renukunta a5799d74d9 scsi: aacraid: Preserve MSIX mode in the OMR register
Preserve the current MSIX mode value in the OMR before rewriting the OMR
to initiate the IOP or Soft Reset.

Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-13 21:37:03 -05:00
Raghava Aditya Renukunta 44f1ce7d2f scsi: aacraid: Implement DropIO sync command
IOP_RESET takes a long time to complete. If controller is in a state
where we can bring it back with init struct, send a DropIO sync command
instead.

 - If controller is faulted perform standard IOP_RESET in aac_srcv_init.

 - If controller is not faulted get adapter properties and extended
   properties.

 - Update the sa_firmware variable and determine if DropIO request is
   supported.

 - Issue DropIO request, and get the number of outstanding commands.

 - If all commands are complete with success (CT_OK), consider IOP_RESET
   is complete.

 - If any commands timeout, Perform the IOP_RESET.

Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-13 21:37:03 -05:00
Meelis Roos 00c20cdc79 scsi: aacraid: fix shutdown crash when init fails
When aacraid init fails with "AAC0: adapter self-test failed.", shutdown
leads to UBSAN warning and then oops:

[154316.118423] ================================================================================
[154316.118508] UBSAN: Undefined behaviour in drivers/scsi/scsi_lib.c:2328:27
[154316.118566] member access within null pointer of type 'struct Scsi_Host'
[154316.118631] CPU: 2 PID: 14530 Comm: reboot Tainted: G        W        4.15.0-dirty #89
[154316.118701] Hardware name: Hewlett Packard HP NetServer/HP System Board, BIOS 4.06.46 PW 06/25/2003
[154316.118774] Call Trace:
[154316.118848]  dump_stack+0x48/0x65
[154316.118916]  ubsan_epilogue+0xe/0x40
[154316.118976]  __ubsan_handle_type_mismatch+0xfb/0x180
[154316.119043]  scsi_block_requests+0x20/0x30
[154316.119135]  aac_shutdown+0x18/0x40 [aacraid]
[154316.119196]  pci_device_shutdown+0x33/0x50
[154316.119269]  device_shutdown+0x18a/0x390
[...]
[154316.123435] BUG: unable to handle kernel NULL pointer dereference at 000000f4
[154316.123515] IP: scsi_block_requests+0xa/0x30

This is because aac_shutdown() does

        struct Scsi_Host *shost = pci_get_drvdata(dev);
        scsi_block_requests(shost);

and that assumes shost has been assigned with pci_set_drvdata().

However, pci_set_drvdata(pdev, shost) is done in aac_probe_one() far
after bailing out with error from calling the init function
((*aac_drivers[index].init)(aac)), and when the init function fails, no
error is returned from aac_probe_one() so PCI layer assumes there is
driver attached, and tries to shut it down later.

Fix it by returning error from aac_probe_one() when card-specific init
function fails.

This fixes reboot on my HP NetRAID-4M with dead battery.

Signed-off-by: Meelis Roos <mroos@linux.ee>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-13 21:35:40 -05:00