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2008-10-03[SCSI] qla2xxx: Add NPIV-Config Table support.Andrew Vasquez
To instatiate pre-configured vport entities defined within an HBA's flash memory. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] qla2xxx: Add Flash Layout Table support.Andrew Vasquez
The Flash Layout Table (FLT) present on many recent HBAs encodes flash usage information, organizes data stored into separate regions and presents the information uniformly to the driver. Use this information rather than using specific hard-coded values based on ISP type. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] qla2xxx: Change GFP_ATOMIC to GFP_KERNEL for non-atomic allocations.Andrew Vasquez
Both call-sites are sleeping-capable. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] qla2xxx: Add input/output byte-count statistics.Harish Zunjarrao
Currently Firmware does not have counters for input megabytes and output megabytes, therefore driver counts these values depending on the status of the scsi command and direction of the command. The values are exported in the FC_HOST path. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] libiscsi: return error passed in during iscsi recoveryMike Christie
Due to patch building error on my side, we are still passing DID_BUS_BUSY for commands that are running, when we want to return whatever the caller of fail_all_commands wanted. This replaces the hardcoded error code with the value that is passed in. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] fc_transport: Add an API to allow an LLD to create vportsAndrew Vasquez
There's already a fc_vport_termintate() call exported by the transport. This patch adds a symmetric call to the API to allow an NPIV-capable LLD to instantiate vports sans user intervention. Additional comments/updates: Re: scsi_fc_transport.txt Add a function prototype for fc_vport_terminate similar to what's done for fc_vport_create Re: fc_vport_create I recommend we pass the channel number in fc_vport_create rather than fixing it at zero. Also, ids->vport_type should be set to FC_PORTTYPE_NPIV prior to calling fc_vport_create. The comment is also meaningless. Added-by and Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] sd: use generic helper to print capacities in both binary and SIJames Bottomley
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] scsi_dh: no need to initialize rq->cmd with blk_get_requestFUJITA Tomonori
blk_get_request initializes rq->cmd (rq_init does) so the users don't need to do that. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] Update the SCSI state model to allow blocking in the created stateJames Bottomley
Brian King <brking@linux.vnet.ibm.com> reported that fibre channel devices can oops during scanning if their ports block (because the device goes from CREATED -> BLOCK -> RUNNING rather than CREATED -> BLOCK -> CREATED). Fix this by adding a new state: CREATED_BLOCK which can only transition back to CREATED and disallow the CREATED -> BLOCK transition. Now both the created and blocked states that the mid-layer recognises can include CREATED_BLOCK. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] add inline functions for recognising created and blocked statesJames Bottomley
The created and blocked states are very shortly going to correspond to mixed sdev_state states. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] scsi_netlink: Add transport and LLD recieve and event supportJames Smart
This patch adds scsi netlink recieve and event support for transport and scsi LLDD's. It is a reimplementation of the patch posted last week by David Somayajulu. http://marc.info/?l=linux-scsi&m=121745486221819&w=2 There are a few things done differently: - Transport support is included - Event delivery is included - The vendor message is now its own unique message type, considered part of the generic "SCSI Transport". - LLDD entry points are now registered rather than included in the scsi_host_template. Background: When I started to implement the event handler via template, I had to either: muck up scsi_add_host and scsi_remove_host; or have the event handler search all possible shosts. Neither was acceptable. Moving to a registration solves this, and also limits the scope of the changes to something that could be backported to a distro without breaking an already-released-distro kabi. However, I admit it isn't as elegant, as the passing of the LLDD host template in the registration and the complexity around dynamic add/remove shows. - The receive path was augmented to require a unique identifier for the LLDD before the message was allowed to be handed off to the driver. Given how quickly very fatal errors occur if there's msg mismatches (which I saw in testing my own tools :), I believe this to be a very good thing. The id plays off the vendor id scheme already introduced for the vendor unique event messages used by FC. Additionally, the id use as the basis of the registration/deregistration. - Send assist functions, for both the transport and LLDDs are included. [fujita.tomonori@lab.ntt.co.jp: fix missing cast] Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] tmscsim: Fixup KERN_INFO in printkNick Warne
Multiline kernel messages should contain a priority in every line, besides, some log daemons represent a tabulator as "^I", fix both these issues. Signed-off-by: Nick Warne <nick@ukfsn.org> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] qla2xxx: Remove semaphore.hMatthew Wilcox
Now that qla2xxx has been converted to mutexes, it no longer needs the semaphore include. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03[SCSI] scsi_host_lookup: error returns and NULL pointersJames Smart
This patch cleans up the behavior of scsi_host_lookup(). The original implementation attempted to use the dual role of either returning a pointer value, or a negative error code. User's needed to use IS_ERR() to check the result. Additionally, the IS_ERR() macro never checks for when a NULL pointer was returned, so a NULL pointer actually passes with a success case. Note: scsi_host_get(), used by scsi_host_lookup(), can return a NULL pointer. Talk about a mudhole for the unitiated to step into.... This patch converts scsi_host_lookup() to return either NULL or a valid pointer. The consumers were updated for the change. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-09-28[SCSI] qlogicpti: fix sg list traversal error in continuation entriesBoaz Harrosh
The current sg list traversal logic for the continuation entries doesn't advance the list pointer once all seven slots are used, so the next continuation entry (if there is one) wrongly begins again at the start of the sg list. Fix by advancing the sg pointer after the for_each_sg(). Reported-by: Meelis Roos <mroos@ut.ee> Cc: David Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-09-23[SCSI] Fix hang with split requestsJames Bottomley
Sometimes, particularly for USB devices with the last sector bug, requests get completed in chunks. There's a bug in this in that if one of the chunks gets an error, we complete that chunk with an error but never move on to the remaining ones, leading to the request hanging (because it's not fully completed). Fix this by completing all remaining chunks if an error is encountered. Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-09-13[SCSI] qla2xxx: Defer enablement of RISC interrupts until ISP initialization ↵Andrew Vasquez
completes. Josip Rodin noted (http://article.gmane.org/gmane.linux.ports.sparc/10152) the driver oopsing during registration of an rport to the FC-transport layer with a backtrace indicating a dereferencing of an shost->shost_data equal to NULL. David Miller identified a small window in driver logic where this could happen: > Look at how the driver registers the IRQ handler before the host has > been registered with the SCSI layer. > > That leads to a window of time where the shost hasn't been setup > fully, yet ISRs can come in and trigger DPC thread events, such as > loop resyncs, which expect the transport area to be setup. > > But it won't be setup, because scsi_add_host() hasn't finished yet. > > Note that in Josip's crash log, we don't even see the > > qla_printk(KERN_INFO, ha, "\n" > " QLogic Fibre Channel HBA Driver: %s\n" > " QLogic %s - %s\n" > " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n", > ... > > message yet. > > Which means that the crash occurs between qla2x00_request_irqs() > and printing that message. Close this window by enabling RISC interrupts after the host has been registered with the SCSI midlayer. Reported-by: Josip Rodin <joy@entuzijast.net> Cc: Stable Tree <stable@kernel.org> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-09-11Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: disable sysfs parts of the disk command filter
2008-09-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] fix check of PQ and PDT bits for WLUNs [SCSI] make scsi_check_sense HARDWARE_ERROR return ADD_TO_MLQUEUE on retry [SCSI] scsi_dh: make check_sense return ADD_TO_MLQUEUE [SCSI] zfcp: Remove duplicated unlikely() macros. [SCSI] zfcp: channel cannot be detached due to refcount imbalance [SCSI] zfcp: Fix reference counter for remote ports [SCSI] zfcp: Simplify ccw notify handler [SCSI] zfcp: Correctly query end flag in gpn_ft response [SCSI] zfcp: Fix request queue locking [SCSI] sd: select CRC_T10DIF only when necessary
2008-09-11block: disable sysfs parts of the disk command filterJens Axboe
We still have life time issues with the sysfs command filter kobject, so disable it for 2.6.27 release. We can revisit this and make it work properly for 2.6.28, for 2.6.27 release it's too risky. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-29[SCSI] fix check of PQ and PDT bits for WLUNsJames Bottomley
For IBM z series certain LUNs can no longer be accessed. This is because kernel version 2.6.19 a check was introduced not to create a generic SCSI device for devices that return PQ=1 and PDT=0x1f. For WLUNs (see SAM-3, p. 41ff) generic SCSI devices should be created unconditionally without looking at the PQ bit, so add a check for WLUNs in with this test. Acked-by: Martin Petermann <martin@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-29[SCSI] make scsi_check_sense HARDWARE_ERROR return ADD_TO_MLQUEUE on retryMike Anderson
Change scsi_check_sense HARDWARE_ERROR check to return ADD_TO_MLQUEUE if device->retry_hwerror is set to allow retries to occur without restriction of blk_noretry_request check. Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-29[SCSI] scsi_dh: make check_sense return ADD_TO_MLQUEUEMike Anderson
Change scsi_dh check_sense functions to return ADD_TO_MLQUEUE to allow retries to occur without restriction of blk_noretry_request check. Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com> Acked-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-29[SCSI] sd: select CRC_T10DIF only when necessaryStefan Richter
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: "Martin K. Petersen" <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-29remove blk_register_filter and blk_unregister_filter in gendiskFUJITA Tomonori
This patch remove blk_register_filter and blk_unregister_filter in gendisk, and adds them to sd.c, sr.c. and ide-cd.c The commit abf5439370491dd6fbb4fe1a7939680d2a9bc9d4 moved cmdfilter from gendisk to request_queue. It turned out that in some subsystems multiple gendisks share a single request_queue. So we get: Using physmap partition information Creating 3 MTD partitions on "physmap-flash": 0x00000000-0x01c00000 : "User FS" 0x01c00000-0x01c40000 : "booter" kobject (8511c410): tried to init an initialized object, something is seriously wrong. Call Trace: [<8036644c>] dump_stack+0x8/0x34 [<8021f050>] kobject_init+0x50/0xcc [<8021fa18>] kobject_init_and_add+0x24/0x58 [<8021d20c>] blk_register_filter+0x4c/0x64 [<8021c194>] add_disk+0x78/0xe0 [<8027d14c>] add_mtd_blktrans_dev+0x254/0x278 [<8027c8f0>] blktrans_notify_add+0x40/0x78 [<80279c00>] add_mtd_device+0xd0/0x150 [<8027b090>] add_mtd_partitions+0x568/0x5d8 [<80285458>] physmap_flash_probe+0x2ac/0x334 [<802644f8>] driver_probe_device+0x12c/0x244 [<8026465c>] __driver_attach+0x4c/0x84 [<80263c64>] bus_for_each_dev+0x58/0xac [<802633ec>] bus_add_driver+0xc4/0x24c [<802648e0>] driver_register+0xcc/0x184 [<80100460>] _stext+0x60/0x1bc In the long term, we need to fix such subsystems but we need a quick fix now. This patch add the command filter support to only sd and sr though it might be useful for other SG_IO users (such as cciss). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Reported-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-27sg: restore command permission for TYPE_SCANNERFUJITA Tomonori
sg allowed any command for TYPE_SCANNER. The cmd_filter patchset doesn't. We can't change sg's permission since it might break the existing software. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-27block: move cmdfilter from gendisk to request_queueFUJITA Tomonori
cmd_filter works only for the block layer SG_IO with SCSI block devices. It breaks scsi/sg.c, bsg, and the block layer SG_IO with SCSI character devices (such as st). We hit a kernel crash with them. The problem is that cmd_filter code accesses to gendisk (having struct blk_scsi_cmd_filter) via inode->i_bdev->bd_disk. It works for only SCSI block device files. With character device files, inode->i_bdev leads you to struct cdev. inode->i_bdev->bd_disk->blk_scsi_cmd_filter isn't safe. SCSI ULDs don't expose gendisk; they keep it private. bsg needs to be independent on any protocols. We shouldn't change ULDs to expose their gendisk. This patch moves struct blk_scsi_cmd_filter from gendisk to request_queue, a common object, which eveyone can access to. The user interface doesn't change; users can change the filters via /sys/block/. gendisk has a pointer to request_queue so the cmd_filter code accesses to struct blk_scsi_cmd_filter. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-23removed unused #include <linux/version.h>'sAdrian Bunk
This patch lets the files using linux/version.h match the files that #include it. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (22 commits) [SCSI] ibmvfc: Driver version 1.0.2 [SCSI] ibmvfc: Add details to async event log [SCSI] ibmvfc: Sanitize response lengths [SCSI] ibmvfc: Fix for lost async events [SCSI] ibmvfc: Fixup host state during reinit [SCSI] ibmvfc: Fix another hang on module removal [SCSI] ibmvscsi: Fixup desired DMA value for shared memory partitions [SCSI] megaraid_sas: remove sysfs dbg_lvl world writeable permissions [SCSI] qla2xxx: Update version number to 8.02.01-k7. [SCSI] qla2xxx: Explicitly tear-down vports during PCI remove_one(). [SCSI] qla2xxx: Reference proper ha during SBR handling. [SCSI] qla2xxx: Set npiv_supported flag for FCoE HBAs. [SCSI] qla2xxx: Don't leak SG-DMA mappings while aborting commands. [SCSI] qla2xxx: Correct vport-state management issues during ISP-ABORT. [SCSI] qla2xxx: Correct synchronization of software/firmware fcport states. [SCSI] scsi_dh: Initialize lun_state in check_ownership() [SCSI] scsi_dh: Do not use scsilun in rdac hardware handler [SCSI] megaraid_sas: version and Documentation Update [SCSI] megaraid_sas: add new controllers (0x78 0x79) [SCSI] megaraid_sas: add the shutdown DCMD cmd to driver shutdown routine ...
2008-08-16[SCSI] ibmvfc: Driver version 1.0.2Brian King
Bump driver version to 1.0.2. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] ibmvfc: Add details to async event logBrian King
When logging async events, also print the payload in addition to the event received. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] ibmvfc: Sanitize response lengthsBrian King
Sanitize the response lengths in order to prevent possible oopses in the command response path. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] ibmvfc: Fix for lost async eventsBrian King
If the client virtual fibre channel adapter is already logged into the server and does an NPIV Login again, the async queue, which is used for reporting Link Up/Link Down type of events, does not get reset on the server side. Fix up the client driver so that we also do not reset it. This fixes a problem of lost async events following relogins. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] ibmvfc: Fixup host state during reinitBrian King
If an ELS is received while the virtual fibre channel adapter is going through its discovery, a flag is set which causes discovery to get re-driven. However, the hosts's state does not get set back to IBMVFC_INITIALIZING and scsi_block_requests does not get called again, which can result in queuecommand ops getting sent during discovery. This should not occur and may cause problems. One example is that we may no longer be logged into the target we send the command to, resulting in a failure which should not have occurred. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] ibmvfc: Fix another hang on module removalBrian King
This fixes a hang on module removal. The module removal code was setting the hosts's state to IBMVFC_HOST_OFFLINE before tearing down the kernel thread, but, due to a bug in ibmvfc_wait_while_resetting, was not waiting for the kernel thread's offlining work to be done prior to destroying the kernel thread, which left the scsi host in a blocked state which we never got out of. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] ibmvscsi: Fixup desired DMA value for shared memory partitionsBrian King
When running ibmvscsi in a shared memory partition, it must provide a default value for the amount of DMA resources it will need in order to perform reasonably well. This was being calculated in sectors rather than bytes, as it should. This patch fixes this. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] megaraid_sas: remove sysfs dbg_lvl world writeable permissionsJoe Malicki
/sys/bus/pci/drivers/megaraid_sas/dbg_lvl defaults to being world-writable, which seems bad (letting any user affect kernel driver behavior and logging level). This turns off group and user write permissions, so that on typical production systems only root can write to it. [jejb: fix up rejections] Signed-off-by: Joseph Malicki <jmalicki@metacarta.com> Acked-by: "Yang, Bo" <Bo.Yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] qla2xxx: Update version number to 8.02.01-k7.Andrew Vasquez
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] qla2xxx: Explicitly tear-down vports during PCI remove_one().Andrew Vasquez
During internal testing, we've seen issues (hangs) with the 'deferred' vport tear-down-processing typically accompanied with the fc_remove_host() call. This is due to the current implementation's back-end vport handling being performed by the physical-HA's DPC thread where premature shutdown could lead to latent vport requests without a processor. This should also address a problem reported by Gal Rosen (http://marc.info/?l=linux-scsi&m=121731664417358&w=2) where the driver would attempt to awaken a previously torn-down DPC thread from interrupt context by implicitly calling wake_up_process() rather than the driver's qla2xxx_wake_dpc() helper. Rather, than reshuffle the remove_one() device-removal code, during unload, depend on the driver's timer to wake-up the DPC process, by limiting wake-ups based on an 'unloading' flag. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] qla2xxx: Reference proper ha during SBR handling.Andrew Vasquez
The executing-HA of an SRB can be referenced from the sp->fcport. Use this correct value while processing status-continuation data and abort processing. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] qla2xxx: Set npiv_supported flag for FCoE HBAs.Mike Hernandez
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] qla2xxx: Don't leak SG-DMA mappings while aborting commands.Andrew Vasquez
Original code inadvertently cleared an SRB's 'flags' while aborting; causing a follow-on scsi_dma_unmap() to be potentially missed. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] qla2xxx: Correct vport-state management issues during ISP-ABORT.Andrew Vasquez
* Use correct 'ha' to mark a device lost from ISR. I/Os will always be returned on the physical-HA. qla2x00_mark_device_lost() should be called with the HA bound to the fcport. * Mark *all* devices lost during ISP-ABORT (bighammer). These fixes correct issues discovered locally where during link-perturbation and heavy vport-I/O fcport/rport states would stray and an rport's scsi-target lost (timed-out). Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] qla2xxx: Correct synchronization of software/firmware fcport states.Andrew Vasquez
Greg Wettstein (greg@enjellic.com) noted: http://article.gmane.org/gmane.linux.scsi/43409 on a reboot of a previously recognized SCST target, the initiator driver would be unable to re-recognize the device as a target. It turns out that prior to the SCST software reloading and returning it's "target-capable" abilities in the PRLI payload, the HBA would be re-initialized as an initiator-only type port. Since initiators typically classify themselves as an FCP-2 capable device, both software and firmware do not perform an explicit logout during port-loss. Unfortunately, as can be seen by the failure case, when the port (now target-capable) returns, firmware performs an ADISC without a follow-on PRLI, leaving stale 'initiator-only' data in the firmware's port database. Correct the discrepancy by performing the explicit logout during the transport's request to terminate-rport-io, thus synchronizing port states and ensuring a follow-on PRLI is performed. Reported-by: Greg Wettstein <greg@enjellic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Cc: Stable Tree <stable@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] scsi_dh: Initialize lun_state in check_ownership()Chandra Seetharaman
lun_state need to be initialized inside check_ownership(). Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] scsi_dh: Do not use scsilun in rdac hardware handlerChandra Seetharaman
RDAC storage controller doesn't seem to use the scsilun format. It uses only the last byte for LUN. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] megaraid_sas: version and Documentation UpdateYang, Bo
Signed-off-by: Bo Yang <bo.yang@lsi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] megaraid_sas: add new controllers (0x78 0x79)Yang, Bo
Add the new controllers (0x78 0x79) support to the driver. Those controllers are LSI's next generation (gen2) SAS controllers. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: parenthesise a macro] Signed-off-by: Bo Yang <bo.yang@lsi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] megaraid_sas: add the shutdown DCMD cmd to driver shutdown routineYang, Bo
Add the shutdown DCMD cmd to driver shutdown routine to make megaraid sas FW shutdown proper. Signed-off-by: Bo Yang <bo.yang@lsi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16[SCSI] megaraid_sas: add readl to force PCI posting flushYang, Bo
MegaRAID SAS Driver get unexpected Interrupt. Add the dummy readl to force PCI flush will fix this issue. Signed-off-by: Bo Yang <bo.yang@lsi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Stable Tree <stable@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>