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2012-10-13Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds52-729/+4245
Pull misc SCSI updates from James Bottomley: "This is an assorted set of stragglers into the merge window with driver updates for megaraid_sas, lpfc, bfi and mvumi. It also includes some fairly major fixes for virtio-scsi (scatterlist init), scsi_debug (off by one error), storvsc (use after free) and qla2xxx (potential deadlock). Signed-off-by: James Bottomley <JBottomley@Parallels.com>" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (49 commits) [SCSI] storvsc: Account for in-transit packets in the RESET path [SCSI] qla2xxx: fix potential deadlock on ha->hardware_lock [SCSI] scsi_debug: Fix off-by-one bug when unmapping region [SCSI] Shorten the path length of scsi_cmd_to_driver() [SCSI] virtio-scsi: support online resizing of disks [SCSI] virtio-scsi: fix LUNs greater than 255 [SCSI] virtio-scsi: initialize scatterlist structure [SCSI] megaraid_sas: Version, Changelog, Copyright update [SCSI] megaraid_sas: Remove duplicate code [SCSI] megaraid_sas: Add SystemPD FastPath support [SCSI] megaraid_sas: Add array boundary check for SystemPD [SCSI] megaraid_sas: Load io_request DataLength in bytes [SCSI] megaraid_sas: Add module param for configurable MSI-X vector count [SCSI] megaraid_sas: Remove un-needed completion_lock spinlock calls [SCSI] lpfc 8.3.35: Update lpfc version for 8.3.35 driver release [SCSI] lpfc 8.3.35: Fixed not reporting logical link speed to SCSI midlayer when QoS not on [SCSI] lpfc 8.3.35: Fix error with fabric service parameters causing performance issues [SCSI] lpfc 8.3.35: Fixed SCSI host create showing wrong link speed on SLI3 HBA ports [SCSI] lpfc 8.3.35: Fixed not checking solicition in progress bit when verifying FCF record for use [SCSI] lpfc 8.3.35: Fixed messages for misconfigured port errors ...
2012-10-10Merge branch 'for-next' of ↵Linus Torvalds2-16/+1
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull scsi target updates from Nicholas Bellinger: "Things have been calm for the most part with no new fabric drivers in flight for v3.7 (we're up to eight now !), so this update is primarily focused on addressing a few long-standing items within target-core and iscsi-target fabric code. The highlights include: - target: Simplify fabric sense data length handling (roland) - qla2xxx: Fix endianness of task management response code (roland) - target: fix truncation of mode data, support zero allocation length (paolo) - target: Properly support zero-length commands in normal processing path (paolo) - iscsi-target: Correctly set 0xffffffff field within ISCSI_OP_REJECT PDU (ronnie + nab) - iscsi-target: Add explicit set of cache_dynamic_acls=1 for TPG demo-mode (ronnie + nab) - target/file: Re-enable optional fd_buffered_io=1 operation (nab + hch) - iscsi-target: Add MaxXmitDataSegmenthLength forr target -> initiator MDRSL declaration (nab) - target: Add target_submit_cmd_map_sgls for SGL fabric memory passthrough (nab + hch) - tcm_loop: Convert I/O path to use target_submit_cmd_map_sgls (hch + nab) - tcm_vhost: Convert I/O path to use target_submit_cmd_map_sgls (nab + hch) The last series for adding a new target_submit_cmd_map_sgls() fabric caller (as requested by hch) that accepts pre-allocated SGL memory (using existing logic), along with converting tcm_loop + tcm_vhost has only been in -next for the last days, but has gotten enough review +testing and is clear enough a mechanical change that I think it's reasonable to merge for -rc1 code. Thanks again to everyone who contributed this round! Extra special thanks to Roland (PureStorage) for tracking down the qla2xxx target TMR response code endian issue, and to Paolo (Redhat) for resolving the long standing zero-length CDB issues within target-core between virtual and pSCSI backends." * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (44 commits) iscsi-target: Bump defaults for nopin_timeout + nopin_response_timeout values iscsit: proper endianess conversions iscsit: use the itt_t abstract type iscsit: add missing endianess conversion in iscsit_check_inaddr_any iscsit: remove incorrect unlock in iscsit_build_sendtargets_resp iscsit: mark various functions static target/iscsi: precedence bug in iscsit_set_dataout_sequence_values() target/usb-gadget: strlen() doesn't count the terminator target/usb-gadget: remove duplicate initialization tcm_vhost: Convert I/O path to use target_submit_cmd_map_sgls target: Add control CDB READ payload zero work-around tcm_loop: Convert I/O path to use target_submit_cmd_map_sgls target: Add target_submit_cmd_map_sgls for SGL fabric memory passthrough iscsi-target: Add explicit set of cache_dynamic_acls=1 for TPG demo-mode iscsi-target: Change iscsi_target_seq_pdu_list.c to honor MaxXmitDataSegmentLength iscsi-target: Add MaxXmitDataSegmentLength connection recovery check iscsi-target: Convert incoming PDU payload checks to MaxXmitDataSegmentLength iscsi-target: Enable MaxXmitDataSegmentLength operation in login path iscsi-target: Add base MaxXmitDataSegmentLength code target/file: Re-enable optional fd_buffered_io=1 operation ...
2012-10-09[SCSI] storvsc: Account for in-transit packets in the RESET pathK. Y. Srinivasan1-0/+5
Properly account for I/O in transit before returning from the RESET call. In the absense of this patch, we could have a situation where the host may respond to a command that was issued prior to the issuance of the RESET command at some arbitrary time after responding to the RESET command. Currently, the host does not do anything with the RESET command. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Cc: stable@vger.kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] qla2xxx: fix potential deadlock on ha->hardware_lockJiri Kosina1-2/+3
Lockdep reports: === [ cut here ] === ========================================================= [ INFO: possible irq lock inversion dependency detected ] 3.6.0-0.0.0.28.36b5ec9-default #1 Not tainted --------------------------------------------------------- qla2xxx_1_dpc/368 just changed the state of lock: (&(&ha->vport_slock)->rlock){+.....}, at: [<ffffffffa009b377>] qla2x00_configure_hba+0x197/0x3c0 [qla2xxx] but this lock was taken by another, HARDIRQ-safe lock in the past: (&(&ha->hardware_lock)->rlock){-.....} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&(&ha->vport_slock)->rlock); local_irq_disable(); lock(&(&ha->hardware_lock)->rlock); lock(&(&ha->vport_slock)->rlock); <Interrupt> lock(&(&ha->hardware_lock)->rlock); === [ cut here ] === Fix the potential deadlock by disabling IRQs while holding ha->vport_slock. Reported-and-tested-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Acked-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] scsi_debug: Fix off-by-one bug when unmapping regionLukas Czerner1-1/+1
Currently it is possible to unmap one more block than user requested to due to the off-by-one error in unmap_region(). This is probably due to the fact that the end variable despite its name actually points to the last block to unmap + 1. However in the condition it is handled as the last block of the region to unmap. The bug was not previously spotted probably due to the fact that the region was not zeroed, which has changed with commit be1dd78de5686c062bb3103f9e86d444a10ed783. With that commit we were able to corrupt the ext4 file system on 256M scsi_debug device with LBPRZ enabled using fstrim. Since the 'end' semantic is the same in several functions there this commit just fixes the condition to use the 'end' variable correctly in that context. Reported-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Lukas Czerner <lczerner@redhat.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Cc: <stable@vger.kernel.org> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] Shorten the path length of scsi_cmd_to_driver()Li Zhong1-3/+5
This patch tries to shorten the path length of scsi_cmd_to_driver(). As only REQ_TYPE_BLOCK_PC commands can be submitted without a driver, so we could avoid the related NULL checking, as long as we make sure we don't use it for REQ_TYPE_BLOCK_PC type commands. Plus, this fixes a bug where you get different behaviors from REQ_TYPE_BLOCK_PC commands when a driver is and isn't attached. Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] virtio-scsi: support online resizing of disksPaolo Bonzini1-1/+30
Support the LUN parameter change event. Currently, the host fires this event when the capacity of a disk is changed from the virtual machine monitor. The resize then appears in the kernel log like this: sd 0:0:0:0: [sda] 46137344 512-byte logical blocks: (23.6 GB/22.0 GIb) sda: detected capacity change from 22548578304 to 23622320128 Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] virtio-scsi: fix LUNs greater than 255Paolo Bonzini1-1/+5
virtio-scsi needs to report LUNs greater than 256 using the "flat" format. Because the Linux SCSI layer just maps the SCSI LUN to an u32, without any parsing, these end up in the range from 16640 to 32767. Fix max_lun to account for the possibility that logical unit numbers are encoded with the "flat" format. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] virtio-scsi: initialize scatterlist structureRichard W.M. Jones1-1/+1
The sg struct is used without being initialized, which breaks when CONFIG_DEBUG_SG is enabled. Cc: stable@vger.kernel.org Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] megaraid_sas: Version, Changelog, Copyright updateadam radford5-9/+9
Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] megaraid_sas: Remove duplicate codeadam radford2-3/+0
Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] megaraid_sas: Add SystemPD FastPath supportadam radford1-0/+2
Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] megaraid_sas: Add array boundary check for SystemPDadam radford1-1/+2
Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] megaraid_sas: Load io_request DataLength in bytesadam radford1-9/+7
Load io_request->DataLength in bytes for newer firmware that supports high availability. Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] megaraid_sas: Add module param for configurable MSI-X vector countadam radford1-0/+8
Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09[SCSI] megaraid_sas: Remove un-needed completion_lock spinlock callsadam radford1-2/+0
Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09mm: kill vma flag VM_RESERVED and mm->reserved_vm counterKonstantin Khlebnikov1-1/+1
A long time ago, in v2.4, VM_RESERVED kept swapout process off VMA, currently it lost original meaning but still has some effects: | effect | alternative flags -+------------------------+--------------------------------------------- 1| account as reserved_vm | VM_IO 2| skip in core dump | VM_IO, VM_DONTDUMP 3| do not merge or expand | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP 4| do not mlock | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP This patch removes reserved_vm counter from mm_struct. Seems like nobody cares about it, it does not exported into userspace directly, it only reduces total_vm showed in proc. Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP. remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP. remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP. [akpm@linux-foundation.org: drivers/vfio/pci/vfio_pci.c fixup] Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Carsten Otte <cotte@de.ibm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Eric Paris <eparis@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Morris <james.l.morris@oracle.com> Cc: Jason Baron <jbaron@redhat.com> Cc: Kentaro Takeda <takedakn@nttdata.co.jp> Cc: Matt Helsley <matthltc@us.ibm.com> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Venkatesh Pallipadi <venki@google.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-08[SCSI] lpfc 8.3.35: Update lpfc version for 8.3.35 driver releaseJames Smart1-1/+1
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Fixed not reporting logical link speed to SCSI midlayer ↵James Smart5-16/+151
when QoS not on Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Fix error with fabric service parameters causing ↵James Smart1-0/+2
performance issues Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Fixed SCSI host create showing wrong link speed on SLI3 ↵James Smart1-2/+8
HBA ports Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Fixed not checking solicition in progress bit when ↵James Smart2-4/+15
verifying FCF record for use Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Fixed messages for misconfigured port errorsJames Smart1-3/+7
Fixed messages for misconfigured port errors to be consistent for all OS platforms. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Fixed kernel warning on spinlock usage on some distributionsJames Smart1-10/+11
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Fixed PRLI not being retried if a LS_RJT with a reasonJames Smart1-2/+3
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Correct request_firmware use that was increasing boot timesJames Smart1-26/+31
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Fix FCP2 Retries for non-r/w commands.James Smart1-0/+2
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Fixed Linux generic firmware download on SLI4 devices ↵James Smart2-2/+5
with longer module names Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Expand I/O channel support for large systemsJames Smart2-22/+22
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Correct missing queue destroy on function resetJames Smart1-2/+2
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Fix incorrect comment in T10 DIF attributesJames Smart1-1/+7
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Added checking BMBX register for RDY bit before writing ↵James Smart1-28/+47
the first address in Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-08[SCSI] lpfc 8.3.35: Fix interrupt delay multipler conversion for eq_createJames Smart2-5/+12
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07[SCSI] libfc: fix lun reset failure bugs in fc_fcp_resp handling of FCP_RSP_INFOYi Zou1-1/+2
In LUN RESET testing involving NetApp targets, it is observed that LUN RESET is failing. The fc_fcp_resp() is not completing the completion for the LUN RESET task since fc_fcp_resp assumes that the FCP_RSP_INFO is 8 bytes with the 4 byte reserved field, where in case of NetApp targets the FCP_RSP to LUN RESET only has 4 bytes of FCP_RSP_INFO. This leads fc_fcp_resp to error out w/o completing the task completion, eventually causing LUN RESET to be escalated to host reset, which is not very nice. Per FCP-3 r04, clause 9.5.15 and Table 23, the FCP_RSP_INFO field can be either 4 bytes or 8 bytes, with the last 4 bytes as "Reserved (if any)". Therefore it is valid to have 4 bytes FCP_RSP_INFO like some of the NetApp targets behave. Fixing this by validating the FCP_RSP_INFO against both the two spec allowed length. Reported-by: Frank Zhang <frank_1.zhang@intel.com> Signed-off-by: Yi Zou <yi.zou@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07[SCSI] fcoe: Fix write errors on NPIV portsNeerav Parikh2-9/+7
SCSI errors were generated while writing to LUNs connected via NPIV ports. Debugging this it was found that the FCoE packets transmitted via the NPIV ports were not tagged with correct user priority as negotiated with peer by DCB agent. This resulted in FCoE traffic going with priority zero(0) that did not have priority flow control (PFC) enabled for it. The initiator after transferring data to the target never saw any reply indicating the transfer was complete. This resulted in error recovery (ABTS) and SCSI command retries by the scsi-mid layer; eventually resulting in I/O errors. This patch fixes this issue by keeping the FCoE user priority information in the fcoe_interface instance that is common for both the physical port as well as NPIV ports connected to that physical port; instead of storing it in fcoe_port structure that has a per port instance. Signed-off-by: Neerav Parikh <Neerav.Parikh@intel.com> Acked-by: Yi Zou <yi.zou@intel.com> Acked-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07[SCSI] mvumi: Add support for Marvell SAS/SATA RAID-on-Chip(ROC) 88RC9580Shun Fu2-260/+1068
[jejb: fix up for spelling correction patch] Signed-off-by: Shun Fu <fushun@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07[SCSI] bfa: Update the driver version to 3.1.2.1Krishna Gudipati1-1/+1
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07[SCSI] bfa: Firmware image naming convention updateKrishna Gudipati1-3/+3
- 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[SCSI] bfa: Add support to read/update the FRU data.Krishna Gudipati9-5/+715
- 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[SCSI] bfa: Support Power on Hours display and diag temp sensor fixesKrishna Gudipati3-5/+42
- 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[SCSI] bfa: Add support to configure min/max bandwidth for a pcifnKrishna Gudipati7-26/+41
- 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[SCSI] bfa: Add support for IO throttling at port levelKrishna Gudipati8-8/+182
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[SCSI] bfa: Add support for user to configure bandwidth on QoS prioritiesKrishna Gudipati6-6/+94
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[SCSI] bfa: Fabric Assigned Address implementation fixKrishna Gudipati2-3/+88
- 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[SCSI] bfa: Add diagnostic port (D-Port) supportKrishna Gudipati9-3/+658
- 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[SCSI] bfa: Fix to handle firmware tskim abort request responseKrishna Gudipati3-8/+15
- 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[SCSI] bfa: Fix few attributes in the RHBA CT passthru commandKrishna Gudipati3-10/+11
- 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[SCSI] bfa: Add support to have mfg date as part of adapter attributesKrishna Gudipati3-0/+11
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[SCSI] bfa: Flash Controller PLL initialization fixesKrishna Gudipati2-83/+131
- 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[SCSI] bfa: IOCFC state machine enhancementsKrishna Gudipati3-26/+63
- 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>