Commit Graph

352 Commits

Author SHA1 Message Date
Vijaya Mohan Guvva
dcaf9aed99 [SCSI] bfa: Chinook quad port 16G FC HBA claim issue
Bfa driver crash is observed while pushing the firmware on to chinook
quad port card due to uninitialized bfi_image_ct2 access which gets
initialized only for CT2 ASIC based cards after request_firmware().
For quard port chinook (CT2 ASIC based), bfi_image_ct2 is not getting
initialized as there is no check for chinook PCI device ID before
request_firmware and instead bfi_image_cb is initialized as it is the
default case for card type check.

This patch includes changes to read the right firmware for quad port chinook.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-12-18 08:28:17 -08:00
Vijaya Mohan Guvva
22a08538dc [SCSI] bfa: Fix crash when symb name set for offline vport
This patch fixes a crash when tried setting symbolic name for an offline
vport through sysfs. Crash is due to uninitialized pointer lport->ns,
which gets initialized only on linkup (port online).

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-12-03 06:56:49 -08:00
Linus Torvalds
9073e1a804 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina:
 "Usual earth-shaking, news-breaking, rocket science pile from
  trivial.git"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits)
  doc: usb: Fix typo in Documentation/usb/gadget_configs.txt
  doc: add missing files to timers/00-INDEX
  timekeeping: Fix some trivial typos in comments
  mm: Fix some trivial typos in comments
  irq: Fix some trivial typos in comments
  NUMA: fix typos in Kconfig help text
  mm: update 00-INDEX
  doc: Documentation/DMA-attributes.txt fix typo
  DRM: comment: `halve' -> `half'
  Docs: Kconfig: `devlopers' -> `developers'
  doc: typo on word accounting in kprobes.c in mutliple architectures
  treewide: fix "usefull" typo
  treewide: fix "distingush" typo
  mm/Kconfig: Grammar s/an/a/
  kexec: Typo s/the/then/
  Documentation/kvm: Update cpuid documentation for steal time and pv eoi
  treewide: Fix common typo in "identify"
  __page_to_pfn: Fix typo in comment
  Correct some typos for word frequency
  clk: fixed-factor: Fix a trivial typo
  ...
2013-11-15 16:47:22 -08:00
Jingoo Han
08b7e10716 SCSI: remove unnecessary pci_set_drvdata()
Since commit 0998d06310
(device-core: Ensure drvdata = NULL when no driver is bound),
the driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: James Bottomley <JBottomley@parallels.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-10-14 15:26:04 +02:00
Yijing Wang
c0102c00d8 [SCSI] bfa: Use pcie_set()/get_readrq() to simplify code
Use pcie_get_readrq()/pcie_set_readrq() to simplify code.

Jon Mason proposed a similar patch a couple years ago (see below).

[bhelgaas: validate pcie_max_read_reqsz, add pointer to Jon's patch]
Reference: http://lkml.kernel.org/r/1309191190-14670-1-git-send-email-jdmason@kudzu.us
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
2013-09-23 17:30:03 -06:00
Linus Torvalds
2e515bf096 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree from Jiri Kosina:
 "The usual trivial updates all over the tree -- mostly typo fixes and
  documentation updates"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (52 commits)
  doc: Documentation/cputopology.txt fix typo
  treewide: Convert retrun typos to return
  Fix comment typo for init_cma_reserved_pageblock
  Documentation/trace: Correcting and extending tracepoint documentation
  mm/hotplug: fix a typo in Documentation/memory-hotplug.txt
  power: Documentation: Update s2ram link
  doc: fix a typo in Documentation/00-INDEX
  Documentation/printk-formats.txt: No casts needed for u64/s64
  doc: Fix typo "is is" in Documentations
  treewide: Fix printks with 0x%#
  zram: doc fixes
  Documentation/kmemcheck: update kmemcheck documentation
  doc: documentation/hwspinlock.txt fix typo
  PM / Hibernate: add section for resume options
  doc: filesystems : Fix typo in Documentations/filesystems
  scsi/megaraid fixed several typos in comments
  ppc: init_32: Fix error typo "CONFIG_START_KERNEL"
  treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks
  page_isolation: Fix a comment typo in test_pages_isolated()
  doc: fix a typo about irq affinity
  ...
2013-09-06 09:36:28 -07:00
Joe Perches
9e03aa2f83 treewide: Convert retrun typos to return
Tyops should be fixed.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-09-04 12:26:36 +02:00
Rasesh Mody
71b3ba7dbf [SCSI] bfa: firmware update to 3.2.1.1
This patch updates the firmware to address the thermal notification issue

Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-03 07:27:58 -07:00
Linus Torvalds
84cbd7222b SCSI misc on 20130702
The patch set is mostly driver updates (usf, zfcp, lpfc, mpt2sas,
 megaraid_sas, bfa, ipr) and a few bug fixes.  Also of note is that the
 Buslogic driver has been rewritten to a better coding style and 64 bit support
 added.  We also removed the libsas limitation on 16 bytes for the command size
 (currently no drivers make use of this).
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull first round of SCSI updates from James Bottomley:
 "The patch set is mostly driver updates (usf, zfcp, lpfc, mpt2sas,
  megaraid_sas, bfa, ipr) and a few bug fixes.  Also of note is that the
  Buslogic driver has been rewritten to a better coding style and 64 bit
  support added.  We also removed the libsas limitation on 16 bytes for
  the command size (currently no drivers make use of this)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (101 commits)
  [SCSI] megaraid: minor cut and paste error fixed.
  [SCSI] ufshcd-pltfrm: remove unnecessary dma_set_coherent_mask() call
  [SCSI] ufs: fix register address in UIC error interrupt handling
  [SCSI] ufshcd-pltfrm: add missing empty slot in ufs_of_match[]
  [SCSI] ufs: use devres functions for ufshcd
  [SCSI] ufs: Fix the response UPIU length setting
  [SCSI] ufs: rework link start-up process
  [SCSI] ufs: remove version check before IS reg clear
  [SCSI] ufs: amend interrupt configuration
  [SCSI] ufs: wrap the i/o access operations
  [SCSI] storvsc: Update the storage protocol to win8 level
  [SCSI] storvsc: Increase the value of scsi timeout for storvsc devices
  [SCSI] MAINTAINERS: Add myself as the maintainer for BusLogic SCSI driver
  [SCSI] BusLogic: Port driver to 64-bit.
  [SCSI] BusLogic: Fix style issues
  [SCSI] libiscsi: Added new boot entries in the session sysfs
  [SCSI] aacraid: Fix for arrays are going offline in the system. System hangs
  [SCSI] ipr: IOA Status Code(IOASC) update
  [SCSI] sd: Update WRITE SAME heuristics
  [SCSI] fnic: potential dead lock in fnic_is_abts_pending()
  ...
2013-07-04 12:30:30 -07:00
Al Viro
c04eba722f bfa: switch to fixed_size_llseek()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-06-29 12:57:32 +04:00
Vijaya Mohan Guvva
607be2cff4 [SCSI] bfa: Update the driver version to 3.2.21.1
Update bfa driver version to 3.2.21.1
Update bfa to use firmware image versions 3.2.1.0

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 17:38:38 -07:00
Vijaya Mohan Guvva
4dde506944 [SCSI] bfa: dis-associate bfa path_tov with dev_loss_tmo
Disassoicate path_tov in the driver with the dev_loss_tmo set by the
application.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 17:27:08 -07:00
Vijaya Mohan Guvva
f9c867b45c [SCSI] bfa: Support for chinook-quad port card
This patch enables support for chinook quad port 16G FC card (falcon)

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 17:16:09 -07:00
Vijaya Mohan Guvva
ba1340788f [SCSI] bfa: fix endianess issue for firmware stats
Fix endianess issue on Big-endian architecture for firmware statistics

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 16:55:27 -07:00
Vijaya Mohan Guvva
36ec9712d5 [SCSI] bfa: Fix bug_on condition in RPSC rsp handling
Fix bug_on condition check in RPSC (Report Port Speed Capabilities)
response processing.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 16:47:36 -07:00
Vijaya Mohan Guvva
ea3837a712 [SCSI] bfa: Allow rsp queue process during ioc disable
Allow processing completions from firmware during IOC_DISABLE request is
being processed by the firmware, by setting the queue_process flag
appropriately.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 16:38:46 -07:00
Vijaya Mohan Guvva
f52c98d407 [SCSI] bfa: firmware statistics update
Get RDS drop interrupts and REC (Read Exchange Concise) related stats
from firmware.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 15:07:16 -07:00
Vijaya Mohan Guvva
079bcbc35c [SCSI] bfa: fru vpd date update changes
1. While FRU VPD data update, inform firmware to send a completion event
   on I2C bus. Without this change, firmware used to send completion
   message on I2C bus for every chunk of FRU VPD update.
2. Support for FRU VPN update on CHINOOK2 cards.
3. Append port count to the model name to differentiate between single
   port and dual port model of 1860.
4. Update the size of the model name to 16bytes

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 14:44:35 -07:00
Vijaya Mohan Guvva
bccd2683df [SCSI] bfa: driver compatibility with 32bit libs
Replaced usage of void * with u64 in data structure shared between
brocade user space libraries and the bfa driver to address pointer
size changes across 32-bit vs 64-bit to have the compatibility between
32bit library and 64bit driver and vice versa.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 13:49:49 -07:00
Vijaya Mohan Guvva
c679b599af [SCSI] bfa: kdump fix on 815 and 825 adapters
Root cause: When kernel crashes, On brocade 815/825 adapters,
 bfa IOC state machine and FW doesn't get a notification and
hence are not cleanly shutdown. So registers holding driver/IOC
state information are not reset back to valid disabled/parking
values. This causes subsequent driver initialization to fail
during kdump kernel boot.

Fix description: during the initialization of first PCI function, reset
corresponding register when unclean shutown is detect by reading chip
registers. This will make sure that ioc/fw gets clean re-initialization.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 13:12:19 -07:00
Vijaya Mohan Guvva
f2a0cc3ffd [SCSI] bfa: Fix FDISC timeout handling
Retry FDISC a max of 6 times. Introduce new events to handle vport
login fails due to max logins to fabric/switch.

Signed-off-by: Anil Gurumurthy <agurumur@brocade.com>
Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 12:03:20 -07:00
Vijaya Mohan Guvva
e1aaab89de [SCSI] bfa: Fix 1860 port initialize when ATC is enabled
On Xen kernels, if ATC (address translation cache) is enabled, the
first PCIe DMA read from the adapter fails with an error. This is due to
a bug ASIC, which leads to a failure of 1860 ports to be initialised.

This patch includes the fix to disable Invalidated Tag Match Enable
capability by setting the bit 26 of CHIP_MISC_PRG to 0, by default it is
set to 1.

Signed-off-by: Anil Gurumurthy <agurumur@brocade.com>
Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 11:59:02 -07:00
Vijaya Mohan Guvva
d7cbc3044f [SCSI] bfa: FDMI enhancements
Update addl. fields in FDMI to confirm to FC-GS6 standard for RPA and
RHBA commands.

Signed-off-by: Anil Gurumurthy <agurumur@brocade.com>
Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 11:47:00 -07:00
Vijaya Mohan Guvva
1287641e94 [SCSI] bfa: Fix WARN_ON condition check
The WARN_ON condition check in IO completion path is wrong. IOtags
returned by the firmware is compared with driver/bfa iotag after masking
the retry count bits.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 11:45:51 -07:00
Vijaya Mohan Guvva
1a898a794d [SCSI] bfa: Add dynamic diagnostic port support
D-Port is a new port type created with the intention of running link
level diagnostic tests like loopback, traffic test. In static D-port
mode, user configures the port to D-port mode and starts the test, but
in dynamic D-port, once the Brocade switch port is configured to
D-port, it will reject the regular FLOGI from HBA with reason that it is
in D-port mode. So based on the reason code HBA port will turn itself into
D-port and start diagnostic test.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com>
Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 11:44:20 -07:00
Vijaya Mohan Guvva
4e1e0d8d71 [SCSI] bfa: Forward Error Correction status query
This patch includes changes to get FC HBA feature Forward Error
Correction (FEC) (enabled at 16Gig speed) status from firmware and to
return to brocade HBA management utility.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 11:42:21 -07:00
Vijaya Mohan Guvva
bbe37a67d9 [SCSI] bfa: Support for FC BB credit recovery
This patch includes changes to  1) Enable/disable fc credit recovery on
Brocade FC adapter port operating at max supported speed. 2) Get credit
recovery status and stats related to credit loss and recovered credits

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 11:40:12 -07:00
Jakob Normark
c6e23d83c3 [SCSI] bfa: Fixes for 0-terminated strncpy and possible null pointer dereference
This patch fixes two cppcheck errors in drivers/scsi/bfa/bfad_im.c

[jejb: correct strlcpy fix]
Signed-off-by: Jakob Normark <jakobnormark@gmail.com>
Acked-by: Vijay Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 07:59:37 -07:00
Al Viro
8177a9d79c lseek(fd, n, SEEK_END) does *not* go to eof - n
When you copy some code, you are supposed to read it.  If nothing else,
there's a chance to spot and fix an obvious bug instead of sharing it...

X-Song: "I Got It From Agnes", by Tom Lehrer
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[ Tom Lehrer? You're dating yourself, Al ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-06-16 08:10:53 -10:00
Vijay Mohan Guvva
07cdc0464f [SCSI] bfa: fix for FC Direct Attach LUN discovery failure
Resending the patch as it didn't make the linux-scsi list.

This patch fixes fcs rport state machine to address ocassional Brocade
FC Direct Attach LUN discovery failure due to not sending PLOGI accept
to the target.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:27 -07:00
Vijay Mohan Guvva
111ecbe426 [SCSI] bfa: fix faulty handling of events in lps sm
When a switch disable/enable or a reboot is done, the HBA port gets an
offline and a subsequent online notification. When the port comes up a
link up notification is sent to bfa from the firmware. The bfa then send
an FLOGI to the firmware which is sent out on the wire.
The switch port meanwhile goes offline (presumably for diagnostics)
which causes the switch not to respond to the FLOGI.
The link down notification is sent to the HBA driver. However owing to a
bug in the lps state machine handling the lps state machine does not
move to sm_init state (it remains in sm_login state and send a login
complete message to fcs). This results in a zero PID assignment as the
login is not really complete.

This fix is to correctly handle the events in lps state machine.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:25 -07:00
Linus Torvalds
21f3b24da9 SCSI misc on 20130222
he patch set is mostly driver updates (bnx2fc, ipr, lpfc, qla4) and a few bug
 fixes.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull first round of SCSI updates from James Bottomley:
 "The patch set is mostly driver updates (bnx2fc, ipr, lpfc, qla4) and a
  few bug fixes"

Pull delayed because google hates James, and sneakily considers his pull
requests spam. Why, google, why?

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (60 commits)
  [SCSI] aacraid: 1024 max outstanding command support for Series 7 and above
  [SCSI] bnx2fc: adjust duplicate test
  [SCSI] qla4xxx: Update driver version to 5.03.00-k4
  [SCSI] qla4xxx: Fix return code for qla4xxx_session_get_param.
  [SCSI] qla4xxx: wait for boot target login response during probe.
  [SCSI] qla4xxx: Added support for force firmware dump
  [SCSI] qla4xxx: Re-register IRQ handler while retrying initialize of adapter
  [SCSI] qla4xxx: Throttle active IOCBs to firmware limits
  [SCSI] qla4xxx: Remove unnecessary code from qla4xxx_init_local_data
  [SCSI] qla4xxx: Quiesce driver activities while loopback
  [SCSI] qla4xxx: Rename MBOX_ASTS_IDC_NOTIFY to MBOX_ASTS_IDC_REQUEST_NOTIFICATION
  [SCSI] qla4xxx: Add spurious interrupt messages under debug level 2
  [SCSI] cxgb4i: Remove the scsi host device when removing device
  [SCSI] bfa: fix strncpy() limiter in bfad_start_ops()
  [SCSI] qla4xxx: Update driver version to 5.03.00-k3
  [SCSI] qla4xxx: Correct the validation to check in get_sys_info mailbox
  [SCSI] qla4xxx: Pass correct function param to qla4_8xxx_rd_direct
  [SCSI] lpfc 8.3.37: Update lpfc version for 8.3.37 driver release
  [SCSI] lpfc 8.3.37: Fixed infinite loop in lpfc_sli4_fcf_rr_next_index_get.
  [SCSI] lpfc 8.3.37: Fixed crash due to SLI Port invalid resource count
  ...
2013-02-28 12:43:43 -08:00
Tejun Heo
70a9755d5f scsi/bfa: convert to idr_alloc()
Convert to the much saner new idr interface.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Krishna C Gudipati <kgudipat@brocade.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 19:10:18 -08:00
Dan Carpenter
30ac379a69 [SCSI] bfa: fix strncpy() limiter in bfad_start_ops()
The closing parenthesis is in the wrong place so it takes the sizeof a
pointer instead of the sizeof the buffer minus one.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Anil Gurumurthy <agurumur@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-30 11:54:54 +11:00
Greg Kroah-Hartman
6f03979051 Drivers: scsi: remove __dev* attributes.
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Adam Radford <linuxraid@lsi.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03 15:57:01 -08:00
Krishna Gudipati
08bc166d0f [SCSI] bfa: Update the driver version to 3.1.2.1
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:29:16 +01:00
Krishna Gudipati
7d0ecef383 [SCSI] bfa: Firmware image naming convention update
- Modified the firmware naming convention to contain the
  firmware image version (3.1.0.0).
- The new convention is <firmware-image>-<firmware-version>.bin
- The change will enforce loading only compatible firmware with this driver
  and also avoid over-writing the old firmware image in-order to load new
  version driver as the firmware names used to be the same.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:28:06 +01:00
Krishna Gudipati
e6826c96ce [SCSI] bfa: Add support to read/update the FRU data.
- Add FRU sub-module to support FRU read/write/update.
- Add support to read/write from the temp FRU module.

[jejb: fix checkpatch issues]
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:26:53 +01:00
Krishna Gudipati
4a49b04448 [SCSI] bfa: Support Power on Hours display and diag temp sensor fixes
- Add Power On Hours display support during sfpshow
- Fix to properly set the diag temperature sensor status variable.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:24:19 +01:00
Krishna Gudipati
1a1297c644 [SCSI] bfa: Add support to configure min/max bandwidth for a pcifn
- Added support to configure minimum bandwidth for a pcifn.
- Minimum bandwith is guaranteed at per queue level.
- Added support to update pcifn bandwidth dynamically without
  a server reboot.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:23:20 +01:00
Krishna Gudipati
7ace27ae28 [SCSI] bfa: Add support for IO throttling at port level
Add capability to limit the number of exchanges on a port to
avoid queue-full conditions from the target side.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:21:29 +01:00
Krishna Gudipati
6894f013a7 [SCSI] bfa: Add support for user to configure bandwidth on QoS priorities
Made changes to provide an option for user to configure the
bandwidth percentage for High/Medium/Low QoS priorities.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:20:08 +01:00
Krishna Gudipati
04ea657562 [SCSI] bfa: Fabric Assigned Address implementation fix
- Made changes such that once the PWWN is acquired from the fabric through FAA,
  and if the FAPWWN configuration is modified on the switch side, driver should
  show relevant information to the user.
- Added logic to cache the reason code when the given port is disabled implicitl
  due to FAA error condition.
- If the port is disabled, while sending SCN to upper layer, update the
  reason code appropriately. With this, BFA FC port state machine will enter
  into faa_err_config state. This state will be shown to the user.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:18:29 +01:00
Krishna Gudipati
e353546e44 [SCSI] bfa: Add diagnostic port (D-Port) support
- Introduced support for D-Port which is a new port mode during which
  link level diagnostics can be run.
- Provided mechanism to dynamically configure D-Port and initiate diagnostic
  tests to isolate any link level issues.
- In D-Port mode, the HBA port does not participate in fabric or login to the
  remote device or run data traffic.
- Diagnostic tests include running various loopback tests in conjunction with
  the attached device.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:17:27 +01:00
Krishna Gudipati
1306e31d41 [SCSI] bfa: Fix to handle firmware tskim abort request response
- Enhance tracing to include both tskim tag and event.
- Handle the tskim abort response from firmware in the
  tskim state machine cleanup state and proceed with the
  tskim cleanup.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:16:24 +01:00
Krishna Gudipati
b480a32e69 [SCSI] bfa: Fix few attributes in the RHBA CT passthru command
- Made changes to set the RHBA command max payload based on
  the port configured frame size.
- Made changes to fix the driver/fw version size in FMDI structure.
- Fix to pass the fw version for FDMI attribute type
  FDMI_HBA_ATTRIB_FW_VERSION rather than driver version.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:15:13 +01:00
Krishna Gudipati
ea5d7c9ecb [SCSI] bfa: Add support to have mfg date as part of adapter attributes
Made changes to expose mfg day/month/year as part of the
adapter attributes for user space applications.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:13:00 +01:00
Krishna Gudipati
227fab90bf [SCSI] bfa: Flash Controller PLL initialization fixes
- Made changes to check the flash controller status before IOC initialization.
- Made changes to poll on the FLASH_STS_REG bit to check if the flash controller
  initialization is completed during the PLL init.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:12:12 +01:00
Krishna Gudipati
7ac83b1fd0 [SCSI] bfa: IOCFC state machine enhancements
- Add support to handle STOP/DISABLE events in the IOCFC state machine.
- Made changes to bring the IOC down on a flash driver config read failure.
- Added logic to clean the use count and fail sync registers during IOCFC init.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:11:13 +01:00
Krishna Gudipati
bc0e2c2a97 [SCSI] bfa: Add support for FC Arbitrated Loop topology.
- Add private loop topology support at 2G/4G/8G speeds with following
  limitations
  1. No support for multiple initiators in the loop
  2. No public loop support. If attached to a loop with an FL_Port,
     device continues to work as a private NL_Port in the loop
  3. No auto topology detection. User has to manually set the
     configured topology to loop if attaching to loop.
- When loop topology is configured, enabling FC port features
  QoS/Trunk/TRL are not allowed and vice versa.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:03:50 +01:00
Linus Torvalds
3151367f87 SCSI for-linus on 20121002
This is a large set of updates, mostly for drivers (qla2xxx [including support
 for new 83xx based card], qla4xxx, mpt2sas, bfa, zfcp, hpsa, be2iscsi, isci,
 lpfc, ipr, ibmvfc, ibmvscsi, megaraid_sas).  There's also a rework for tape
 adding virtually unlimited numbers of tape drives plus a set of dif fixes for
 sd and a fix for a live lock on hot remove of SCSI devices.
 
 This round includes a signed tag pull of isci-for-3.6
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull first round of SCSI updates from James Bottomley:
 "This is a large set of updates, mostly for drivers (qla2xxx [including
  support for new 83xx based card], qla4xxx, mpt2sas, bfa, zfcp, hpsa,
  be2iscsi, isci, lpfc, ipr, ibmvfc, ibmvscsi, megaraid_sas).

  There's also a rework for tape adding virtually unlimited numbers of
  tape drives plus a set of dif fixes for sd and a fix for a live lock
  on hot remove of SCSI devices.

  This round includes a signed tag pull of isci-for-3.6

  Signed-off-by: James Bottomley <JBottomley@Parallels.com>"

Fix up trivial conflict in drivers/scsi/qla2xxx/qla_nx.c due to new PCI
helper function use in a function that was removed by this pull.

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (198 commits)
  [SCSI] st: remove st_mutex
  [SCSI] sd: Ensure we correctly disable devices with unknown protection type
  [SCSI] hpsa: gen8plus Smart Array IDs
  [SCSI] qla4xxx: Update driver version to 5.03.00-k1
  [SCSI] qla4xxx: Disable generating pause frames for ISP83XX
  [SCSI] qla4xxx: Fix double clearing of risc_intr for ISP83XX
  [SCSI] qla4xxx: IDC implementation for Loopback
  [SCSI] qla4xxx: update copyrights in LICENSE.qla4xxx
  [SCSI] qla4xxx: Fix panic while rmmod
  [SCSI] qla4xxx: Fail probe_adapter if IRQ allocation fails
  [SCSI] qla4xxx: Prevent MSI/MSI-X falling back to INTx for ISP82XX
  [SCSI] qla4xxx: Update idc reg in case of PCI AER
  [SCSI] qla4xxx: Fix double IDC locking in qla4_8xxx_error_recovery
  [SCSI] qla4xxx: Clear interrupt while unloading driver for ISP83XX
  [SCSI] qla4xxx: Print correct IDC version
  [SCSI] qla4xxx: Added new mbox cmd to pass driver version to FW
  [SCSI] scsi_dh_alua: Enable STPG for unavailable ports
  [SCSI] scsi_remove_target: fix softlockup regression on hot remove
  [SCSI] ibmvscsi: Fix host config length field overflow
  [SCSI] ibmvscsi: Remove backend abstraction
  ...
2012-10-02 19:01:32 -07:00
Linus Torvalds
99dbb1632f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull the trivial tree from Jiri Kosina:
 "Tiny usual fixes all over the place"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits)
  doc: fix old config name of kprobetrace
  fs/fs-writeback.c: cleanup riteback_sb_inodes kerneldoc
  btrfs: fix the commment for the action flags in delayed-ref.h
  btrfs: fix trivial typo for the comment of BTRFS_FREE_INO_OBJECTID
  vfs: fix kerneldoc for generic_fh_to_parent()
  treewide: fix comment/printk/variable typos
  ipr: fix small coding style issues
  doc: fix broken utf8 encoding
  nfs: comment fix
  platform/x86: fix asus_laptop.wled_type module parameter
  mfd: printk/comment fixes
  doc: getdelays.c: remember to close() socket on error in create_nl_socket()
  doc: aliasing-test: close fd on write error
  mmc: fix comment typos
  dma: fix comments
  spi: fix comment/printk typos in spi
  Coccinelle: fix typo in memdup_user.cocci
  tmiofb: missing NULL pointer checks
  tools: perf: Fix typo in tools/perf
  tools/testing: fix comment / output typos
  ...
2012-10-01 09:06:36 -07:00
Krishna Gudipati
744abef1ab [SCSI] bfa: Update the driver version to v3.1.2.0.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:58 +04:00
Krishna Gudipati
61ba43947e [SCSI] bfa: Add support for max target ports discovery
- Changes to avoid discovering NPIV port as remote port by the other
  NPIV ports created on same physical port when all the NPIV ports are
  part of the same zone in a fabric.
- Provided mechanism to support maximum number of target ports for a
  given initiator port (physical port + NPIV ports) irrespective of the
  way in which the initiator and target ports are zoned in the fabric.
- Introduced module_parameter max_rport_logins to restrict number of
  remote ports discovery which includes target and initiator remote ports.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:57 +04:00
Krishna Gudipati
ce7242b802 [SCSI] bfa: Add support to register node symbolic name with name server
- Changes to register node symbolic name with name server on the fabric
  by sending CT commands RNN_ID and RSNN_NN.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:57 +04:00
Krishna Gudipati
9aec024975 [SCSI] bfa: Fix to process mbox interrupts only if interrupts are enabled in INTx mode.
- Made changes to process mbox and error interrupts only if interrupts are
  enabled, when running in INTx mode.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:57 +04:00
Krishna Gudipati
881c1b3c48 [SCSI] bfa: Add PowerPC support and enable PCIE AER handling.
- Added few missing endian swap changes to support BFA on PowerPC.
- Added PCIE AER support to BFA:
  a) Implemented the PCI error handler entry points.
  b) Made changes to FCS state machine to handle STOP event from the
	 PCI error detected entry point.
  c) Made changes to the IO Controller state machine to handle SUSPEND
     event from the PCI error detected entry point.
  d) Made changes to restart the BFA operations on a slot_reset completion.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:56 +04:00
Krishna Gudipati
6dca60a387 [SCSI] bfa: Add new hardware model info to sysfs model description routine.
- Added new hardware model Brocade-1867 information to
  sysfs model description routine.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:56 +04:00
Krishna Gudipati
c3f1b123d0 [SCSI] bfa: Make changes to FCXP resource management.
- Made changes to split FCXP resources as request and response resources.
- The split will reduce the contention for FCXP resources in an open zone
  config.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:56 +04:00
Krishna Gudipati
ee1a4a42f6 [SCSI] bfa: FCS remote port enhancements.
- Introduced rport qualifier structure and modified design to
  export remote ports with valid pid or valid pwwn to the user space.
- Introduced old_pid field in the rport structure and made changes to
  prevent re-creating a new remote port for an already existing rport
  that is transitioning to a delete state. (Happens if we receive a RSCN
  on the existing remote port that is getting deleted).

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:56 +04:00
Krishna Gudipati
ebfe83921b [SCSI] bfa: Support vport symbolic name change from sysfs.
- Implemented the FC function template set_vport_symbolic_name entry
  point to modify the vport symbolic name from sysfs.
- Implemented support to send RSPN_ID to switch to register the
  modified vport symbolic name.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:55 +04:00
Anatol Pomozov
4907cb7b19 treewide: fix comment/printk/variable typos
Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-09-01 10:33:05 -07:00
Krishna Gudipati
529f9a7655 [SCSI] bfa: Fix to set correct return error codes and misc cleanup.
- Remove unnecessary if NULL check in function bfa_fcs_vport_free().
- Set correct return error codes in case of memory allocation failure
  in the BSG ELS/CT passthru command handler.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20 08:59:05 +01:00
Kyle McMartin
0b1017aab1 [SCSI] bfa: squelch lockdep complaint with a spin_lock_init
Spotted this while looking at another issue...

INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
Pid: 298, comm: udevd Not tainted 3.3.0 #1
Call Trace:
  [<ffffffff810cee63>] __lock_acquire+0x1363/0x1bb0
  [<ffffffff816593d2>] ? __slab_alloc+0x4a0/0x4fd
  [<ffffffff81020063>] ? native_sched_clock+0x13/0x80
  [<ffffffff810200d9>] ? sched_clock+0x9/0x10
  [<ffffffff810cfd81>] lock_acquire+0xa1/0x1e0
  [<ffffffffa0321b83>] ? bfa_fcs_lport_aen_post+0x43/0x160 [bfa]
  [<ffffffff816630e5>] _raw_spin_lock_irqsave+0x65/0xb0
  [<ffffffffa0321b83>] ? bfa_fcs_lport_aen_post+0x43/0x160 [bfa]
  [<ffffffffa0321b83>] bfa_fcs_lport_aen_post+0x43/0x160 [bfa]
  [<ffffffffa032fa57>] bfa_fcs_lport_init+0x97/0x120 [bfa]
  [<ffffffffa031d4ff>] bfa_fcs_fabric_sm_uninit+0x1cf/0x250 [bfa]
  [<ffffffffa031c1da>] bfa_fcs_fabric_modinit+0x2a/0xb0 [bfa]
  [<ffffffffa031bef2>] ? bfa_fcs_fabric_attach+0xf2/0x170 [bfa]
  [<ffffffffa031e75a>] bfa_fcs_init+0x2a/0x40 [bfa]
  [<ffffffffa02facf7>] bfad_drv_init+0x107/0x1f0 [bfa]
  [<ffffffffa02fb057>] bfad_pci_probe+0x277/0x450 [bfa]
  [<ffffffff81354d4c>] local_pci_probe+0x5c/0xd0
  [<ffffffff81354ed1>] pci_device_probe+0x111/0x120
  [<ffffffff8141c0e6>] driver_probe_device+0x96/0x2f0
  [<ffffffff8141c3eb>] __driver_attach+0xab/0xb0
  [<ffffffff8141c340>] ? driver_probe_device+0x2f0/0x2f0
  [<ffffffff8141a2e5>] bus_for_each_dev+0x55/0x90
  [<ffffffffa037b000>] ? 0xffffffffa037afff
  [<ffffffff8141bbce>] driver_attach+0x1e/0x20
  [<ffffffff8141b8d8>] bus_add_driver+0x1b8/0x2b0
  [<ffffffffa037b000>] ? 0xffffffffa037afff
  [<ffffffff8141cbc7>] driver_register+0x77/0x160
  [<ffffffffa037b000>] ? 0xffffffffa037afff
  [<ffffffff81353b23>] __pci_register_driver+0x73/0xf0
  [<ffffffffa037b000>] ? 0xffffffffa037afff
  [<ffffffffa037b083>] bfad_init+0x83/0x1000 [bfa]
  [<ffffffff8100212a>] do_one_initcall+0x12a/0x180
  [<ffffffff810df0d0>] sys_init_module+0xc0/0x220
  [<ffffffff8166bbe9>] system_call_fastpath+0x16/0x1b

Signed-off-by: Kyle McMartin <kmcmarti@redhat.com>
Acked-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20 08:59:03 +01:00
Dan Carpenter
a5254dbb17 [SCSI] bfa: dereferencing freed memory in bfad_im_probe()
If bfad_thread_workq(bfad) was not BFA_STATUS_OK then we freed "im"
and then dereferenced it.

I did a little clean up because it seemed nicer to return directly
instead of doing a superfluous goto.  I looked at other functions in
this file and it seems like returning directly is standard.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20 08:58:37 +01:00
Dan Carpenter
fffa69230b [SCSI] bfa: off by one in bfa_ioc_mbox_isr()
If mc == BFI_MC_MAX then we're reading past the end of the
mod->mbhdlr[] array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20 08:58:37 +01:00
Krishna Gudipati
6192bd7cdc [SCSI] bfa: Fix to set vport FC host sysfs entries
Made changes to set the fc_host sysfs entries supported_speeds,
supported_classes etc., during the vport creation from the
FC transport template.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-05-22 11:06:29 +01:00
Krishna Gudipati
a3f29cccbe [SCSI] bfa: Fix bfa logging for Logical port state change notification
Made changes to have the same logging level for Logical port
online and offline events, to display these events in pairs.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-04-25 10:02:03 +01:00
Krishna Gudipati
9d8ad782b9 [SCSI] bfa: sysfs model description fix.
Make changes to remove unsupported model numbers from the sysfs
model description routine.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-04-25 09:59:59 +01:00
Krishna Gudipati
17c201b328 [SCSI] bfa: Fix to defer vport delete handler invocation till firmware logo response.
Made changes to avoid queuing the vport delete work to IM driver
work queue in the bfa_fcb_lport_delete() - since at this stage we
are not completely done with using the vport structure as we are
still waiting for the LOGO response from the fw in online state or
just doing some cleanup. Since queuing up the vport delete work at
this stage will result in the FC transport layer to clean up the vport
before we get the response from firmware.
Made changes to queue the port delete work to the IM driver work queue -
from the bfa_fcs_vport_free() function since at this state we are done
with using the vport data structure and the FCS state machine is completely
cleaned up.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-04-25 09:58:31 +01:00
Krishna Gudipati
a165de82b0 [SCSI] bfa: Update the driver version to 3.0.23.0
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 10:02:46 +01:00
Krishna Gudipati
bd5a026019 [SCSI] bfa: BSG and User interface fixes.
Made changes to set the rport maxfrsize param to use a value that is
equal to or less than the Buffer-to-Buffer Receive Data_Field size
specified in the Common Service Parameters.
Increased the diag memtest timeout for the Brocade-1860 adapters.
Made changes to enable valid port speed configuration check for all adapters.
Made changes to increase the max hw segments in a request, in order to
support larger data transfers from user space.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 09:57:58 +01:00
Krishna Gudipati
ff179e0f4a [SCSI] bfa: Fix to avoid vport delete hang on request queue full scenario.
Fixed the LPS (Logical Port Services) state machine to send a
FDISC/FLOGI to the FW from the request queue wait state, when
there is space available again on the request queue.
Made changes to free the vport on LOGO/cleanup complete instead
of free'ing it from vport_delete_handler in the module unload scenario.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 09:57:09 +01:00
Krishna Gudipati
f0cdfcee19 [SCSI] bfa: Move service parameter programming logic into firmware.
Programming of the service parameters Tx credits etc., is now done in firmware.
Remove the logic of sending the service parameters to firmware from driver.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 09:56:19 +01:00
Krishna Gudipati
db9d8a75af [SCSI] bfa: Revised Fabric Assigned Address(FAA) feature implementation.
Made changes to the Fabric Assigned Address(FAA) feature implementation.
Introduced the IOCFC state machine, which now handles the FAA logic,
IOC and BFA sub-modules enablement.
Removed un-wanted FAA enable/disable routines; FAA is enabled by default.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 09:55:22 +01:00
Krishna Gudipati
a6b963db0d [SCSI] bfa: Flash controller IOC pll init fixes.
Made changes to resume the flash controller if it is halted before going
ahead with flash controller pause/resume logic.
Made changes to avoid clearing off the interrupts during the initial
pll initialization.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 09:54:32 +01:00
Krishna Gudipati
8919678eaa [SCSI] bfa: Serialize the IOC hw semaphore unlock logic.
Made changes to ensure only the function that comes first will execute
the IOC hw semaphore unlock logic.
Used IOC init sem register to serialize execution of the unlock logic.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 09:53:45 +01:00
Krishna Gudipati
1f67096ca5 [SCSI] bfa: Modify ISR to process pending completions
Made changes to the driver ISR to process any pending completions even if
the RME bit is not set in the interrupt status register.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 09:50:34 +01:00
Krishna Gudipati
acea241510 [SCSI] bfa: Add fc host issue lip support
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 09:49:34 +01:00
Santosh Nayak
76c8ae4b2f [SCSI] bfa: Fix endian bug in bfad_iocmd_debug_fw_core().
Casting pointer from native data type to other type is
endian-sensitive.

"iocmd->offset"  is 64 bit but we use only first 32 bit.
It works in little-endian system but in big-endian system
it will break.

Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Acked-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-27 08:26:35 +01:00
Jesper Juhl
64b8aa75bc [SCSI] bfa: don't leak mem in bfad_im_bsg_els_ct_request()
If 'drv_fcxp = kzalloc(sizeof(struct bfad_fcxp), GFP_KERNEL);' fails
and returns NULL, then we'll leak the memory allocated to 'bsg_fcpt'
when we jump to 'out:' and the variable subsequently goes out of
scope.

Also remove the cast of the kzalloc() return value. kzalloc() returns
a void* which is implicitly converted, so the explicit cast is
pointless.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-19 08:09:01 -06:00
Krishna Gudipati
5b7db7af52 [SCSI] bfa: Implement LUN Masking feature using the SCSI Slave Callouts.
This patch re-implements LUN Masking feature using SCSI Slave Callouts.  With
the new design in the slave_alloc entry point; for each new LUN discovered we
check with our internal LUN Masking config whether to expose or to mask this
particular LUN. We return -ENXIO (No such device or address) from slave_alloc
for the LUNs we don't want to be exposed.  We also notify the SCSI mid-layer
to do a sequential LUN scan rather than REPORT_LUNS based scan if LUN masking
is enabled on our HBA port, since a -ENXIO from any LUN in REPORT_LUNS based
scan translates to a scan abort.  This patch also handles the dynamic lun
masking config change from enable to disable or vice-versa by resetting
sdev_bflags of LUN 0 appropriately.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-10 17:01:24 -06:00
Krishna Gudipati
8ca2dd87e7 [SCSI] bfa: Revert back the current LUN Masking Implementation.
This patch reverts the current LUN Masking Implementation.  We re-implemented
this feature using the SCSI Slave Callout's as per the review comments.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-10 17:01:24 -06:00
Krishna Gudipati
6bc6204e3b [SCSI] bfa: Fix possible NULL pointer dereference in lunmask add/delete.
Patch fixes the possible NULL pointer dereference when we try to add or delete
a rpwwn to the lunmask config which is not zoned to this port.  Check if the
FCS rport is not NULL before de-referencing it.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-10 17:01:23 -06:00
Linus Torvalds
d04baa157d SCSI updates for post 3.2 merge window
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

SCSI updates for post 3.2 merge window

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (67 commits)
  [SCSI] lpfc 8.3.28: Update driver version to 8.3.28
  [SCSI] lpfc 8.3.28: Add Loopback support for SLI4 adapters
  [SCSI] lpfc 8.3.28: Critical Miscellaneous fixes
  [SCSI] Lpfc 8.3.28: FC and SCSI Discovery Fixes
  [SCSI] lpfc 8.3.28: Add support for ABTS failure handling
  [SCSI] lpfc 8.3.28: SLI fixes and added SLI4 support
  [SCSI] lpfc 8.3.28: Miscellaneous fixes in sysfs and mgmt interfaces
  [SCSI] mpt2sas: Removed redundant calling of _scsih_probe_devices() from _scsih_probe
  [SCSI] mac_scsi: Remove obsolete IRQ_FLG_* users
  [SCSI] qla4xxx: Update driver version to 5.02.00-k10
  [SCSI] qla4xxx: check for FW alive before calling chip_reset
  [SCSI] qla4xxx: Fix qla4xxx_dump_buffer to dump buffer correctly
  [SCSI] qla4xxx: Fix the IDC locking mechanism
  [SCSI] qla4xxx: Wait for disable_acb before doing set_acb
  [SCSI] qla4xxx: Don't recover adapter if device state is FAILED
  [SCSI] qla4xxx: fix call trace on rmmod with ql4xdontresethba=1
  [SCSI] qla4xxx: Fix CPU lockups when ql4xdontresethba set
  [SCSI] qla4xxx: Perform context resets in case of context failures.
  [SCSI] iscsi class: export pid of process that created
  [SCSI] mpt2sas: Remove unused duplicate diag_buffer_enable param
  ...
2012-01-10 10:36:08 -08:00
Al Viro
f4ae40a6a5 switch debugfs to umode_t
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03 22:54:56 -05:00
Jing Huang
98cdfb4347 [SCSI] bfa: fix endian and bit field check bug
Fix some endian issue. __BIGENDIAN is not defined and it needs to be
replaced with __BIG_ENDIAN. Also fixed a bug in bit field access.
These two issues were reported by Dan Carpenter.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-15 10:55:01 +04:00
Jing Huang
275a63acda [SCSI] bfa: fix formating and checkpatch issues
Fixed code indentation and alignment issues.
Fixed all checkpatch warnings.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-15 10:55:01 +04:00
Paul Gortmaker
09703660ed scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required
For the basic SCSI infrastructure files that are exporting symbols
but not modules themselves, add in the basic export.h header file
to allow the exports.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:23 -04:00
Jiri Kosina
e060c38434 Merge branch 'master' into for-next
Fast-forward merge with Linus to be able to merge patches
based on more recent version of the tree.
2011-09-15 15:08:18 +02:00
Jesper Juhl
101ae14edc Remove unneeded version.h includes from drivers/scsi/
It was pointed out by 'make versioncheck' that some includes of
linux/version.h are not needed in drivers/scsi/.
This patch removes them.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-09-15 14:57:07 +02:00
Krishna Gudipati
154fbf0648 [SCSI] bfa: Update the driver version to 3.0.2.2
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:59:02 +04:00
Krishna Gudipati
4c5d22bf7b [SCSI] bfa: Added support to configure lunmasking
- Added support to enable / disable lunmasking on Brocade adapter ports.
- Added support to query / clear lunmasking configuration.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:57:31 +04:00
Krishna Gudipati
83763d591b [SCSI] bfa: Introduced initiator based lun masking feature.
- Added support to enable initiator based lun masking.
- Initiator based Lun masking works similar to zoning where
  initiator port is allowed to see only those LUNs which are
  configured to be seen.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:55:03 +04:00
Krishna Gudipati
45c5dc1d3f [SCSI] bfa: Add support to store driver configuration in flash.
- Added dconf (Driver Config) BFA sub-module.
- The dconf sub-module provides interfaces and manages flash writes
  to the flash DRV parition.
- dconf sub-module also ensures that the whole 64K DRV partition is updated
  on a flash write.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:54:03 +04:00
Krishna Gudipati
c0350bf574 [SCSI] bfa: Add support to collect / reset fabric stats.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:53:40 +04:00
Krishna Gudipati
3ec4f2c8bf [SCSI] bfa: Added support to configure QOS and collect stats.
- Added support to configure QOS on Brocade adapter ports.
- Added support to collect / reset QOS statistics.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:51:44 +04:00
Krishna Gudipati
45191236b1 [SCSI] bfa: Add support to configure trunking on Brocade adapter ports.
- Added logic to enable / disable trunking on Brocade adapter ports.
- Added logic to query trunking info.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:51:11 +04:00
Krishna Gudipati
a46bd300e1 [SCSI] bfa: Add support to configure and query flash boot partition
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:50:06 +04:00
Krishna Gudipati
37ea0558b8 [SCSI] bfa: Added support to collect and reset fcport stats
- Added support to collect and reset fcport stats.
- Modified design to allow multiple requests for fcport stats.
  - fcport will remember the stats request in its stats_pending
    queue and service each of the queued requests after receiving
    a firmware response for the prior request.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:48:52 +04:00
Krishna Gudipati
42a8e6e298 [SCSI] bfa: Add support for IO profiling.
- Made changes to support IO profiling.
- Added support to configure and query IO profiling info.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:47:45 +04:00
Krishna Gudipati
f2ee76017b [SCSI] bfa: Extend BSG to support more user commands
Extended BSG to support stats, port log and trace reset and to support
adapter, port SET operations.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:46:12 +04:00
Krishna Gudipati
fb778b0629 [SCSI] bfa: Check supported speed based on port mode
Added logic to check the loopback test input speed based on port mode.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:45:44 +04:00
Krishna Gudipati
ca6e0ea71c [SCSI] bfa: Update RME interrupt handling.
- Made changes to always acknowledge RME interrupt and update
  consumer index (CI) when RME interrupt is generated.
- Made changes to have ASIC specific hw_rspq_ack() handler.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:44:48 +04:00
Krishna Gudipati
9afbcfab74 [SCSI] bfa: use negative error return values in all functions
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:44:06 +04:00
Krishna Gudipati
7826f304b1 [SCSI] bfa: Add FC-transport based Asynchronous Event Notification support.
- Added support to post vendor unique events on fc_host.
- Supports adapter, port, ioc, flash and remote port based AEN events.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:41:24 +04:00
Krishna Gudipati
2dabc55dfe [SCSI] bfa: Update the driver version to 3.0.2.1
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 17:29:32 -05:00
Krishna Gudipati
61e62e21af [SCSI] bfa: Driver and BSG enhancements.
- Added a new module parameter max_xfer_size to
  set the max_sectors in the scsi_host template.
- Added logic to handle request_irq() failure so
  that msix vector resource is de-allocated immediately
  when failure happens.
- BSG enhancements to collect vHBA releated info and port log.
- Removed the workaround of incrementing the module refcnt on bsg request.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 17:28:17 -05:00
Krishna Gudipati
3350d98d6d [SCSI] bfa: Added support to query PHY.
- Added PHY sub-module.
- Implemented interface to obtain stats and to
  read/update the fw from the PHY module.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 17:27:20 -05:00
Krishna Gudipati
3d7fc66dcd [SCSI] bfa: Added HBA diagnostics support.
- Added diagnostics sub-module to BFA.
- Implemented interface to perform memtest/loopback test
  and some other diagnostics tests.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 17:25:44 -05:00
Krishna Gudipati
5a54b1d576 [SCSI] bfa: Added support for flash configuration
- Added flash sub-module.
- Implemented the interface to read/erase/update flash partition.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 17:23:29 -05:00
Krishna Gudipati
51e569aa1f [SCSI] bfa: Added support to obtain SFP info.
- Added SFP sub-module to BFA.
- Added interface to collect sfp media info and sfp speed.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 17:22:26 -05:00
Krishna Gudipati
148d61039c [SCSI] bfa: Added support for CEE info and stats query.
- Added CEE sub-module.
- Added support to collect stats/cee module info
  using BSG interface.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 17:21:23 -05:00
Krishna Gudipati
601380669b [SCSI] bfa: Extend BSG interface.
- Added support to collect driver/fw stats.
- Added support to perform adapter/ioc enable, disable operations.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 17:16:54 -05:00
Krishna Gudipati
d7be54cc5c [SCSI] bfa: FCS bug fixes.
- Added logic to initiate a PLOGI to the target, while processing a LOGO
  from the same target in Direct attach mode.
- Added logic to generate a FCCT Reject indicating unsupported command,
  upon receiving FCCT/FCGS requests.
- Added logic to set the fcpim in offline state and avoid any PRLI retries
  if a PRLI response is a reject with a reason Command Not Supported.
- Updated the FDMI Supported/Current speeds.
- Added logic to wait for the response  from the firmware before sending
  ACC to PLOGI and transitioning to subsequent states - while processing an
  Incoming PLOGI in online state.
- Added a wait state in the fcs_vport state machine - For case where
  FDISC is in progress and we get a vport delete request we wait for
  fdisc response and will transition to the appropriate state based on
  rsp status, else its causing both driver/fw resources to be not
  freed.
- Remove the fc_credit_recovery module param.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 17:12:11 -05:00
Krishna Gudipati
4507025d01 [SCSI] bfa: DMA memory allocation enhancement.
- Modified the design such that each BFA sub-module will provide
  the amount of DMA and KVA memory needed by it and queues the
  same request to the global dma and kva info queues.
- During the memory allocation we iterate over this queue to allocate
  the dma and kva memory requested by sub-modules.
- The change is needed to avoid requesting the aggregate amount of memory
  needed by all the BFA sub-modules as one contiguous chunk.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 17:11:09 -05:00
Krishna Gudipati
3fd459804f [SCSI] bfa: Brocade-1860 Fabric Adapter vHBA support.
- Introduced partitioning of the BFA resources.
- Added h/w queue ID in CPE messages, firmware uses h/w queue ID
  from messages to pick a matching RME queue.
- Added message header to bfa_reqq_produce(). h/w queue ID is set
  in the message header and firmware modules use h/w queue ID from
  message header instead of from cpqe event.
- Made changes to allow using all 256 queues of Brocade-1860 asic.
  Previously only a single queue per queue group was used.
- Added function tag to BFI message header. Only used by FC BFI
  messages.  Used to translate host tag to firmware tag. bfa_lpuid()
  is changed to bfa_fn_lpu() that encodes both PCI function and port
  ID in BFI message header.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 17:02:28 -05:00
Krishna Gudipati
10a0737924 [SCSI] bfa: Brocade-1860 Fabric Adapter PLL init fixes.
- If flash controller is halted unconditionally, this results in
  illegal write access to flash controller register domain. Since
  flash controller registers are only accessible once s_clk is started
  - added logic to check for WGN status and halt flash controller only
  if it is already running.
- Added check to wait for flash controller halt to be completed before
  proceeding with s_clk/l_clk initializations.
- Removed unnecessary reset logic for PMM 1T memory and moved memory
  initialization after flash access enable.
- Disable Brocade-1860 asic MBOX interrupt before PLL initialization.
- Remove reset enable for S_CLK/L_CLK after both PLL initializations
  are complete.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 16:59:59 -05:00
Krishna Gudipati
a714134a85 [SCSI] bfa: Added Fabric Assigned Address(FAA) support
- Updated/added data structures and definitions to support FAA protocol.
- Modified the IOC state machine to support FAA.
- Introduced FAA feature configuration - enable/disable/query.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 16:59:01 -05:00
Krishna Gudipati
5a0adaedff [SCSI] bfa: IOC bug fixes.
- Add logic to handle the case where PCI mapping goes away when
  IOCPF state machine is waiting for semaphore.
- Added logic to unlock hw semaphore if the previos FW boot was
  from flash based and the current FW initialization attempt is from OS.
- Added fix to update hbfails and hb_count stats during hwerror event.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 16:57:52 -05:00
Krishna Gudipati
1a4d8e1bd8 [SCSI] bfa: Enable ASIC block configuration and query.
- Added ASIC block configuration APIs:
	- to create/delete/update the physical functions
	- to do adapter/port mode configuration
	- to query the current ASIC block configuration.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 16:56:05 -05:00
Krishna Gudipati
7bb66fc06e [SCSI] bfa: Update the driver version to 3.0.2.0
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 16:04:05 -05:00
Krishna Gudipati
b85daafe46 [SCSI] bfa: Add BSG interface to support ELS, CT and vendor commands.
- Added BSG interface support to BFA driver
- Adds support to send ELS/CT FC passthru commands and
  few vendor specific BSG requests.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 15:59:53 -05:00
Krishna Gudipati
75332a70a8 [SCSI] bfa: Driver initialization and model description fix
- Moved FCS initialization, which internally does the im_port creation
  as well as the scsi_host creation before bfa_init.

Once the bfa_init is complete & successful:
- Reset the FCS base port cfg params such as pwwn/nwwn and setup fc host
  params - based on the values learned during the ioc getattr request.
- Change needed to support BSG commands even on bfa init failure.
- Model description fixes for Brocade adapters.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 15:56:05 -05:00
Krishna Gudipati
e2187d7f38 [SCSI] bfa: Enhancement for fcpim and IO tag handling.
- Enhancements to FCPIM module.
- Introduced IO tag management to allocate/release IOs to FCPIM module
  from a free IOtag pool.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 15:54:23 -05:00
Krishna Gudipati
be540a991e [SCSI] bfa: FC credit recovery and misc bug fixes.
- Introduce FC credit recovery.
- Added module parameter to enable/disable credit recovery.

Bug Fixes:
- Removed check for ignoring plogi from initiator in switched fabric mode.
- The ABTS for PLOGI is going out few millisecs earlier due to FW
  timer calibration (around 300 miilisecs earlier). So there is a
  window if an accept comes during this time HBA would have initiated
  an ABORT.
- Added 1 to FC_ELS_TOV for compensating for FW timer.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 15:52:21 -05:00
Krishna Gudipati
8b070b4a02 [SCSI] bfa: Brocade-1860 Fabric Adapter 16Gbs support and flash controller fixes.
- Added support for 16Gbps.
- Added logic to flush pending mailbox command queue when IOC is disabled.
- Fix to Halt the flash controller during fw initialization - since
  when asic blck is programmed flash controller's continuous access
  blocks f/w access to flash.
- Added new asic based card types and modified IOC get card model routine.
- Added PLL init fix to do LPU reset every time we do a memory
  initialization, since not doing so will cause LPU to be
  uninitialized during driver load.
- Added fix to Halt flash controller before PLL initialization.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 15:50:50 -05:00
Krishna Gudipati
775c7742ad [SCSI] bfa: IOC and PLL init changes for Brocade-1860 Fabric Adapter.
- Introduced IOC poll mechanism which replaces current interrupt
  based FW READY method.
- The timer based poll routine in IOC will query the ioc_fwstate
  register to see if there is a state change in FW, and sends the READY event.
- Bug fixes in the new asic PLL initialization.
- Added logic to handle CPE/RME queue interrupts before iocfc config done.
  1. Use the queue_process flag to see if iocfc configuration is done
     in INTX mode.
  2. Split the MSIX handler installation in two - one for IOC intr
     handler and the other for cpe/rme queue handler - and delay
     assigning queue handlers until iocfc config is done in MSIX mode.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 15:46:19 -05:00
Krishna Gudipati
dd5aaf4536 [SCSI] bfa: Changes to support vport disable and enable operations.
Made changes to FCS lport, vport state machines to support vport
enable / disable operations.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 15:37:48 -05:00
Krishna Gudipati
111892082e [SCSI] bfa: Brocade-1860 Fabric Adapter Hardware Enablement
- Added support for Brocade-1860 Fabric Adapter.
- Made changes to support single firmware image per asic type.
- Combined bfi_cbreg.h and bfi_ctreg.h defines into bfi_reg.h with
  only minimal defines used by host.
- Added changes to setup CPE/RME Queue register offsets based on
  firmware response.
- Removed queue register offset initializations and added register offsets
  to BFI config response message.
- Added Brocade-1860 asic specific interrupt status definitions and
  mailbox interfaces.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 15:31:31 -05:00
Krishna Gudipati
43ffdf4dfb [SCSI] bfa: Add pbc port disable check and fix LPS message name
- Add PBC port Disabled condition check.
- Rename incorrectly named LPS I2H messages.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 15:27:46 -05:00
Krishna Gudipati
d37779f8d9 [SCSI] bfa: Introduce IOC event notification mechanism.
Introduced a generic event notification callback function that
receives IOC_ENABLED, IOC_DISABLED, IOC_FAILED events and notifies the
modules registered for these events.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 15:25:57 -05:00
Krishna Gudipati
85ce928dbb [SCSI] bfa: Introduced generic address len pair to represent DMA memory chunk.
- Avoid the use of hardware defined structure bfi_sge_s for DMA
  requests in host.

- Defined a generic address len pair to represent a DMA memory chunk
  (bfi_alen_s).

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 15:24:46 -05:00
Jing Huang
45d7f0cc58 [SCSI] bfa: kdump fix
Root cause: When kernel crashes, bfa IOC state machine and FW doesn't get
a notification and hence are not cleanly shutdown. So registers holding
driver/IOC state information are not reset back to valid disabled/parking
values. This causes subsequent driver initialization to hang during kdump
kernel boot.

Fix description: during the initialization of first PCI function, reset
corresponding register when unclean shutown is detect by reading chip
registers. This will make sure that ioc/fw gets clean re-initialization.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:38:02 -04:00
Krishna Gudipati
7c38c05b3e [SCSI] bfa: Move debugfs initialization before bfa init.
Move the initialization of debugfs before bfa init, to enable us to
collect driver/firmware traces if init fails.  Also add a printk to
display message on bfa_init failure.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:55:56 -05:00
Jing Huang
61338a0b34 [SCSI] bfa: firmware download fix
This patch includes fixes for two issues releated to firmware download
implementation: 1) Merged memory leak fix provided by Jesper Juhl
<jj@chaosbits.net>. Basically we need to call release_firmware() after
request_firmware(). 2) fixed issues with the firmware download interface
as pointed out by Rolf Eike Beer <eike@sf-mail.de> in linux-scsi. Rearranged
the code and fixed related function protypes.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:53:49 -05:00
Lucas De Marchi
25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
Linus Torvalds
008d23e485 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
  Documentation/trace/events.txt: Remove obsolete sched_signal_send.
  writeback: fix global_dirty_limits comment runtime -> real-time
  ppc: fix comment typo singal -> signal
  drivers: fix comment typo diable -> disable.
  m68k: fix comment typo diable -> disable.
  wireless: comment typo fix diable -> disable.
  media: comment typo fix diable -> disable.
  remove doc for obsolete dynamic-printk kernel-parameter
  remove extraneous 'is' from Documentation/iostats.txt
  Fix spelling milisec -> ms in snd_ps3 module parameter description
  Fix spelling mistakes in comments
  Revert conflicting V4L changes
  i7core_edac: fix typos in comments
  mm/rmap.c: fix comment
  sound, ca0106: Fix assignment to 'channel'.
  hrtimer: fix a typo in comment
  init/Kconfig: fix typo
  anon_inodes: fix wrong function name in comment
  fix comment typos concerning "consistent"
  poll: fix a typo in comment
  ...

Fix up trivial conflicts in:
 - drivers/net/wireless/iwlwifi/iwl-core.c (moved to iwl-legacy.c)
 - fs/ext4/ext4.h

Also fix missed 'diabled' typo in drivers/net/bnx2x/bnx2x.h while at it.
2011-01-13 10:05:56 -08:00
Jing Huang
8f4bfadd20 [SCSI] bfa: remove unused defintions and misc cleanups
This patch removes unused functions, data strucutres, and definitions.  It
also includes misc comment and formatting cleanups.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-31 09:43:31 -06:00
Jing Huang
2f2f40a458 [SCSI] bfa: remove inactive functions
This patch removes some inactive functions and macros.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-31 09:38:53 -06:00
Jing Huang
d4b671c58e [SCSI] bfa: replace bfa_assert with WARN_ON
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-31 09:36:53 -06:00
Jiri Kosina
4b7bd36470 Merge branch 'master' into for-next
Conflicts:
	MAINTAINERS
	arch/arm/mach-omap2/pm24xx.c
	drivers/scsi/bfa/bfa_fcpim.c

Needed to update to apply fixes for which the old branch was too
outdated.
2010-12-22 18:57:02 +01:00
Krishna Gudipati
395eb20238 [SCSI] bfa: Update the driver version to 2.3.2.3
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-21 12:37:18 -06:00
Krishna Gudipati
15821f05b7 [SCSI] bfa: io tag handling and minor bug fix.
Fix iotag handling:

1) Update and check io tag for retry case.
2) Clearing upper 3 bits in io tag when an IO completes.
   The 3 upper bits in io tags are used for counting FCP exchange retry.
   Un-cleared bits will cause firmware to access invalid memory when the
   same io tag is used for an IO to a target that doesn't support FCP
   exchange retry.
3) Only check the effective bits when validating an iotag.

Other minor fixes:

1) Added trace to get FC header type with assert of unhandled packet received.
   Ignore the type FC_TYPE_FC_FSS (FC_XS).
2) Fixed the adapter info display check - to check for fcmode flag even.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-21 12:37:17 -06:00
Krishna Gudipati
b704495c67 [SCSI] bfa: direct attach mode fix.
- Direct attach is not working due to the check of PID in fcxp_send request.
- Added logic to set the lps->lp_pid with the PID assigned for n2n mode.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-21 12:37:16 -06:00
Krishna Gudipati
f1d584d70f [SCSI] bfa: IOC auto recovery fix.
- Made IOC auto_recovery synchronized and not timer based.
- Only one PCI function will attempt to recover and reinitialize
  the ASIC on a failure, after all the active PCI fns
  acknowledge the IOC failure.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-21 12:37:15 -06:00
Krishna Gudipati
f3a060ca57 [SCSI] bfa: Store port configuration in flash for persistency.
When the bfa driver is loaded a flogi is sent without the knowledge of
trunking configuration. This normal flogi causes the switch ports
which had trunking enabled to go to persistent offline.  Solution is
to store the port configuration (which has trunking info) in the flash
for persistency. The firmware will read this configuration when the
very first fcport enable is received.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-21 12:37:12 -06:00
Krishna Gudipati
4e78efefa3 [SCSI] bfa: IOC fwtrace save logic & state machine fixes.
- Move fw trace save logic to bfa_ioc_sm_fail_entry(),
  so that fw trace is saved irrespective of the cause of the failure.
- Make bfa_ioc_sm_fail() a failure parking state.
- Rename bfa_ioc_sm_initfail() to a more appropriate bfa_ioc_sm_fail_retry()
  as it is no longer a parking state.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-21 12:37:11 -06:00
Maggie Zhang
da99dcc98d [SCSI] bfa: remove unused functions and misc cleanups
Remove unused functions and fix checkpatch errors. Misc cleanups in
comment and formatting.

Signed-off-by: Maggie Zhang <xmzhang@brocade.com>
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-21 12:32:58 -06:00
Maggie Zhang
f16a17507b [SCSI] bfa: remove all OS wrappers
Remove OS wrapper functions/macros, and as a result remove bfa_os_inc.h.

Signed-off-by: Maggie Zhang <xmzhang@brocade.com>
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-21 12:32:56 -06:00