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* [SCSI] libiscsi: don't let io sit in queue when session has failedMike Christie2009-05-231-9/+6Star
| | | | | | | | | | | | | If the session is failed, but we have not yet fully transitioned to the recovery stage we were still queueuing IO. The idea is that for some failures we can recvover at the command level and still continue to execute other IO. Well, we never have added the recovery within a command code, so queueing up IO here just creates the possibility that it might time time out so this just has us requeue the IO the scsi layer for now. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: handle cleanup task racesMike Christie2009-05-231-109/+116
| | | | | | | | | | | | | | | | | | | | | | | bnx2i needs to send a hardware specific cleanup command if a command has not completed normally (iscsi/scsi response from target), and the session is still ok (this is the case when we send a TMF to stop the command). At this time it will need to drop the session lock. The problem with the current code is that fail_all_commands assumes we will hold the lock the entire time, so it uses list_for_each_entry_safe. If while bnx2i drops the session lock multiple cmds complete then list_for_each_entry_safe will not handle this correctly. This patch removes the running lists and just has us loop over the cmds array (in later patches we will then replace that array with a block tag map at the session level). It also fixes up the completion path so that if the TMF code and the normal recv path were completing the same command then they both do not try to do release the refcount taken when the task is queued. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: fix iscsi transport checks to account for slower linksMike Christie2009-05-231-9/+29
| | | | | | | | | | | | | | If we have not got any pdus for recv_timeout seconds, then we will send a iscsi ping/nop to make sure the target is still around. The problem is if this is a slow link, and the ping got queued after the data for a data_out (read), then the transport code could think the ping has failed when it is just slowly making its way through the network. This patch has us check if we are making progress while the nop is outstanding. If we are still reading in data, then we do not fail the session at that time. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi_tcp: update recv tracking for each skb instead of iscsi pduMike Christie2009-05-231-0/+6
| | | | | | | | | | | | | | | | | | | | Everytime we read in a pdu libiscsi will update a tracking field. It uses this to decide when to check if the transport might be bad. If we have not got data in recv_timeout seconds then we will send a iscsi ping/nop. If we are on a slow link then it could take a while to read in all the data for a data_in. In that case we might send a ping/nop when we do not need to or we might drop a session thinking it is bad when the lower layer is making forward progress on it. This patch has libiscsi_tcp update the recv tracking for each skb (basically network packet from our point of view) instead of the entire iscsi pdu+data, so we account for these cases where data is coming in slowly. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: fix nop response/reply and session cleanup raceMike Christie2009-05-231-3/+8
| | | | | | | | | | | | | | | | If we are responding to a nop from the target by sending our nop, and the session is getting torn down, then iscsi_start_session_recovery could set the conn stop bits while the recv path is sending the nop response and we will hit the bug ons in __iscsi_conn_send_pdu. This has us check the state in __iscsi_conn_send_pdu and fail all incoming mgmt IO if we are not logged in and if the pdu is not login related. It also changes the ordering of the setting of conn stop state bits so they are set after the session state is set (both are set under the session lock). Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: have iscsi_data_in_rsp call iscsi_update_cmdsnMike Christie2009-05-232-1/+8
| | | | | | | | | | | | | This has iscsi_data_in_rsp call iscsi_update_cmdsn when a pdu is completed like is done for other pdu's that are don. For libiscsi_tcp, this means that it calls iscsi_update_cmdsn when it is handling the pdu internally to only transfer data, but if there is status then it does not need to call it since the completion handling will do it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: export iscsi_itt_to_task for bnx2iMike Christie2009-05-231-1/+2
| | | | | | | | | bnx2i needs to be able to look up mgmt task like login and nop, because it does some processing of them on the completion path. This exports iscsi_itt_to_task so it can look up the task. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: handle param allocation failuresMike Christie2009-05-231-75/+33Star
| | | | | | | | | | | | | If we could not allocate the initiator name or some other id like the hwaddress or netdev, then userspace could deal with the failure by just running in a dregraded mode. Now we want to be able to switch values for the params and we want some feedback, so this patch will check if a string like the initiatorname could not be allocated and return an error. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: check of LLD has a alloc pdu callout.Mike Christie2009-05-231-7/+12
| | | | | | | | | | | | bnx2i does not have one. It currently preallocates the bdt when the session is setup. We probably want to change that to a dma pool, then allocate from the pool in the alloc pdu. Until then check if there is a alloc pdu callout. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] iscsi: pass ep connect shostMike Christie2009-05-236-27/+79
| | | | | | | | | | | | | | | | | | | | When we create the tcp/ip connection by calling ep_connect, we currently just go by the routing table info. I think there are two problems with this. 1. Some drivers do not have access to a routing table. Some drivers like qla4xxx do not even know about other ports. 2. If you have two initiator ports on the same subnet, the user may have set things up so that session1 was supposed to be run through port1. and session2 was supposed to be run through port2. It looks like we could end with both sessions going through one of the ports. Fixes for cxgb3i from Karen Xie. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] NCR_D700: fix IRQ handler return typeZhenwen Xu2009-05-231-1/+1
| | | | | | | | | | | drivers/scsi/NCR_D700.c: In function `NCR_D700_probe': drivers/scsi/NCR_D700.c:322: warning: passing argument 2 of `request_irq' from incompatible pointer type drivers/scsi/NCR_D700.c:322: warning: passing argument 2 of `request_irq' from incompatible pointer type drivers/scsi/NCR_D700.c:322: warning: passing argument 2 of `request_irq' from incompatible pointer type Signed-off-by: Zhenwen Xu <helight.xu@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] mvsas: performance improvement using domain_device->lldd_devAndy Yan2009-05-232-16/+16
| | | | | | | | | | Using sticky field to improve retrieve performance by eliminating some lookups in . Remove some spurious casts. Signed-off-by: Ying Chu <jasonchu@marvell.com> Signed-off-by: Andy Yan <ayan@marvell.com> Signed-off-by: Ke Wei <kewei@marvell.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] mvsas: correct bit map usageAndy Yan2009-05-231-2/+1Star
| | | | | | | | | Utilize DECLARE_BITMAP to define the tags array. Signed-off-by: Ying Chu <jasonchu@marvell.com> Signed-off-by: Andy Yan <ayan@marvell.com> Signed-off-by: Ke Wei <kewei@marvell.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] mvsas: bug fix, null pointer may be usedAndy Yan2009-05-231-4/+4
| | | | | | | | | Null pointer check to avoid corruption. Signed-off-by: Ying Chu <jasonchu@marvell.com> Signed-off-by: Andy Yan <ayan@marvell.com> Signed-off-by: Ke Wei <kewei@marvell.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] mvsas: bug fix of dead lockAndy Yan2009-05-231-8/+6Star
| | | | | | | | | | TMF task should be issued with Interrupt Disabled, or Deadlock may take place. Clean-up unused parameters and conditonal lock. Signed-off-by: Ying Chu <jasonchu@marvell.com> Signed-off-by: Andy Yan <ayan@marvell.com> Signed-off-by: Ke Wei <kewei@marvell.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] mvsas: bug fix with setting task management frame typeAndy Yan2009-05-231-3/+5
| | | | | | | | | Correct frame type setting according to parameter. Signed-off-by: Ying Chu <jasonchu@marvell.com> Signed-off-by: Andy Yan <ayan@marvell.com> Signed-off-by: Ke Wei <kewei@marvell.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] ipr: fix PCI permanent error handlerKleber S. Souza2009-05-231-0/+1
| | | | | | | | | | | | | | | | | | The ipr driver can hang if it encounters enough PCI errors to trigger the permanent error handler. The driver will attempt to initiate a "bringdown" of the adapter and fail all pending ops back. However, this bringdown is unlike any other bringdown of the adapter in the code as the driver. In this code path we end up failing back ops with allow_cmds still set to 1. This results in some commands, the HCAM commands in particular, getting immediately re-issued to the adapter on the done call, which results in an infinite loop in ipr_fail_all_ops. Fix this by setting allow_cmds to zero in this path. Signed-off-by: Kleber S. Souza <klebers@linux.vnet.ibm.com> [brking@linux.vnet.ibm.com: alternate patch substituted] Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] Update wording of CONFIG_SCSI_MULTI_LUN helpEric Piel2009-05-231-10/+9Star
| | | | | | | | | | | | I had to set CONFIG_SCSI_MULTI_LUN to y in order to get my SE W595 working when plugging it as a mass storage. Looking at SCSI option to get a phone behaving correctly was convoluted to say the least. There are quite a few other reports about USB card readers needing this option as well. This patch improves the help text to make the use of the option more obvious. Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] ibmvscsi: Remove redundant test on unsigned.Roel Kluin2009-05-231-3/+0Star
| | | | | | Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] st: fix gcc 4.4 warningKai Makisara2009-05-231-1/+1
| | | | | | | | This patch fixes the GCC 4.4 warning reported by David Binderman and Sergey Senozhatsky. The old version was working correctly but was not easy to read. Signed-off-by: Kai Makisara <kai.makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] limit state transitions in scsi_internal_device_unblockTakahiro Yasui2009-05-231-8/+6Star
| | | | | | | | | | | | | | | | | | | | | | scsi timeout on two or more devices may cause extremely long execution time for user applications because SDEV_OFFLINE state is changed to SDEV_RUNNING state during scsi error recovery procedures triggered by a bus reset or a host reset of scsi LLD, and scsi timeout can happens on the same devices many times. This happens because scsi_internal_device_unblock() changes device's state to SDEV_RUNNING even if a device in other states than SDEV_BLOCK, while the following two transitions are required in this function. SDEV_BLOCK -> SDEV_RUNNING SDEV_CREATED_BLOCK -> SDEV_CREATED Otherwise, it returns -EINVAL. Signed-off-by: Takahiro Yasui <tyasui@redhat.com> [matthew@wil.cx: supplied rewritten base for patch] Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] fcoe, libfc: fix function declarations to be ANSI-compliantRandy Dunlap2009-05-212-4/+4
| | | | | | | | | | | | Fix function declarations: drivers/scsi/fcoe/fcoe.c:1356:28: warning: non-ANSI function declaration of function 'fcoe_dev_setup' drivers/scsi/libfc/fc_rport.c:1293:20: warning: non-ANSI function declaration of function 'fc_setup_rport' drivers/scsi/libfc/fc_rport.c:1302:23: warning: non-ANSI function declaration of function 'fc_destroy_rport' [jejb: fixed wrong doc in comment noticed during inspection] Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] scsi_debug: fix virtual disk larger than 1TBFUJITA Tomonori2009-05-211-1/+1
| | | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] ipr: ipr_remove() marked __devexitKleber S. Souza2009-05-211-2/+2
| | | | | | | | | | Marking the ipr clean up function ipr_remove() as __devexit and using __devexit_p() macro in its address reference. Signed-off-by: Kleber Sacilotto de Souza <kleber@linux.vnet.ibm.com> Reported-by: Breno Leitao <leitao@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] scsi_dh_rdac: Retry for NOT_READY(02/04/01) in rdac device handlerChauhan, Vijay2009-05-211-0/+6
| | | | | | | | | | | During device discovery read capacity fails with 0x020401 and sets the device size to 0. As a reason any I/O submitted to this path gets killed at sd_prep_fn with BLKPREP_KILL. This patch is to retry for 0x020401. NEED_RETRY in scsi_decide_disposition does not give sufficient time for the device to become ready. Signed-off-by: Vijay Chauhan <vijay.chauhan@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] sym53c8xx_2: slave_alloc/destroy safety (2.6.27.5)Aaro Koskinen2009-05-213-15/+93
| | | | | | | | | | | | | | Make the sym53c8xx_2 driver slave_alloc/destroy less unsafe. References to the destroyed LCB are cleared from the target structure (instead of leaving a dangling pointer), and when the last LCB for the target is destroyed the reference to the upper layer target data is cleared. The host lock is used to prevent a race with the interrupt handler. Also user commands are prevented for targets with all LCBs destroyed. Signed-off-by: Aaro Koskinen <Aaro.Koskinen@nokia.com> Tested-by: Tony Battersby <tonyb@cybernetics.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] sym53c8xx_2: lun to_clear flag not re-initialized (2.6.27.5)Aaro Koskinen2009-05-211-0/+9
| | | | | | | | | | | | | (Resent with proper formatting) Fix for the sym53c8xx_2 driver to initialize lun's to_clear flag after a bus reset (a failed clear can trigger a bus reset and it should not be attemped again after that). Signed-off-by: Aaro Koskinen <Aaro.Koskinen@nokia.com> Tested-by: Tony Battersby <tonyb@cybernetics.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla1280: error recovery rewriteMichael Reed2009-05-212-134/+159
| | | | | | | | | | | | The driver now waits for the scsi commands associated with a particular error recovery step to be returned to the mid-layer, and returns the appropriate SUCCESS or FAILED status. Removes unneeded polling of chip for interrupts. This patch also bumps the driver version number. Signed-off-by: Michael Reed <mdr@sgi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla1280: driver clean upMichael Reed2009-05-211-89/+10Star
| | | | | | | | | Remove some unneeded, inactive and unused code, make some trivial corrections to comments and a printk, and return a proper status in qla1280_queuecommand. No fundamental logic changes are made. Signed-off-by: Michael Reed <mdr@sgi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] Increase default timeout for INQUIRYAlan Stern2009-05-211-2/+2
| | | | | | | | | | This patch (as1224) changes the default timeout for INQUIRY commands from 3 seconds to 20 seconds, which is the value used by Windows for USB Mass-Storage devices. Some of these devices, like the Corsair Flash Voyager (see Bugzilla #12188) really do need a long timeout. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] mvsas: add support for 94xx; layout change; bug fixesAndy Yan2009-05-2111-1377/+3893
| | | | | | | | | | | | | | | | | | This version contains following main changes - Switch to new layout to support more types of ASIC. - SSP TMF supported and related Error Handing enhanced. - Support flash feature with delay 2*HZ when PHY changed. - Support Marvell 94xx series ASIC for 6G SAS/SATA, which has 2 88SE64xx chips but any different register description. - Support SPI flash for HBA-related configuration info. - Other patch enhanced from kernel side such as increasing PHY type [jejb: fold back in DMA_BIT_MASK changes] Signed-off-by: Ying Chu <jasonchu@marvell.com> Signed-off-by: Andy Yan <ayan@marvell.com> Signed-off-by: Ke Wei <kewei@marvell.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] mvsas: split driver into multiple filesJeff Garzik2009-05-218-2112/+2273
| | | | | | | | Split mvsas driver into multiple source codes, based on the split and function distribution found in Marvell's mvsas update. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] mvsas: move into new directory drivers/scsi/mvsas/Jeff Garzik2009-05-215-11/+63
| | | | | | | | | | | Zero functional changes, just file movement. This commit prepares for the upcoming integration of the Marvell-provided driver update that splits the driver into support for both 64xx and 94xx chip families. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Update version number to 8.03.01-k2.Andrew Vasquez2009-05-211-1/+1
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Use port number to compute nvram/vpd parameter offsets.Anirban Chakraborty2009-05-214-18/+30
| | | | | | | | | | Read adapter's physical port number from interrupt pin register and use it instead of pci function number to offset into the nvram to obtain the port's configuration parameters. Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Add an override option to specify ISP firmware load semantics.Andrew Vasquez2009-05-213-0/+17
| | | | | | | | As it may be useful during debugging to use a specific firmware image. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Don't try to 'stop' firmware if already in ROM code.Andrew Vasquez2009-05-212-1/+3
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Conditionally disable automatic queue full tracking.Michael Reed2009-05-213-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | Changing a lun's queue depth (/sys/block/sdX/device/queue_depth) isn't sticky when the device is connected via a QLogic fibre channel adapter. The QLogic qla2xxx fibre channel driver dynamically adjusts a lun's queue depth. If a user has a specific need to limit the number of commands issued to a lun (say a tape drive, or a shared raid where the total commands issued to all luns is limited at the controller level, for example) and writes a limiting value to /sys/block/sdXX/device/queue_depth, the qla2xxx driver will silently and gradually increase the queue depth back to the driver limit of ql2xmaxqdepth. While reducing this value (module parameter) or increasing the interval between ramp ups (ql2xqfullrampup) offers the potential for a work around it would be better to have the option of just disabling the dynamic adjustment of queue depth. This patch implements an "off switch" as a module parameter. Signed-off-by: Michael Reed <mdr@sgi.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Perform an implicit login to the Management Server.Joe Carnuccio2009-05-211-1/+1
| | | | | | | | | Set the conditional plogi option bit whenever logging in the fabric management server (if it is already logged in, it does not need an explicit login; an implicit login suffices). Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Restrict model-name/description device-table usage.Andrew Vasquez2009-05-211-2/+5
| | | | | | | | Information present in static table is only valid for pre-ISP25xx adapters. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Correct hard-coded address of a second-port's NVRAM.Harish Zunjarrao2009-05-211-1/+1
| | | | | | Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Correct typo in read_nvram() callback.Andrew Vasquez2009-05-211-1/+1
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Remove reference to request queue from scsi request block.Anirban Chakraborty2009-05-215-25/+27
| | | | | | | | | | srbs used to maintain a reference to the request queue on which it was enqueued. This is no longer required as the request queue pointer is now maintained in the scsi host that issues the srb. Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Add CPU affinity support.Anirban Chakraborty2009-05-217-9/+140
| | | | | | | | | | | | | | Set the module parameter ql2xmultique_tag to 1 to enable this feature. In this mode, the total number of response queues created is equal to the number of online cpus. Turning the block layer's rq_affinity mode on enables requests to be routed to the proper cpu and at the same time it enables completion of the IO in a response queue that is affined to the cpu in the request path. Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Add QoS support.Anirban Chakraborty2009-05-2111-368/+333Star
| | | | | | | | | | | | Set the number of request queues to the module paramater ql2xmaxqueues. Each vport gets a request queue. The QoS value set to the request queues determines priority control for queued IOs. If QoS value is not specified, the vports use the default queue 0. Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Correct compilation failures when DEBUG'n' options are enabled.Andrew Vasquez2009-05-213-14/+17
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Export additional FCoE attributes for application support.Andrew Vasquez2009-05-213-1/+50
| | | | | | | | Cull and export VN_Port MAC address and VLAN_ID information on supported FCoE ISPs. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] qla2xxx: Correct bus-reset behaviour with recent ISPs.Seokmann Ju2009-05-212-4/+2Star
| | | | | | | | | | | | | The short-circuit to skip the non-applicable 'full-login-lip' process on 81xx ISPs was nested too deeply in the 'bus-reset' routine, as the code in qla2x00_loop_reset() should skip the whole enable_lip_full_login process. The original code could cause device tear-down due to the qla2x00_wait_for_loop_ready() call taking a large amount of time. Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* Merge branch 'scsi-fixes' into merge-baseJames Bottomley2009-05-2143-9/+9203
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| * [SCSI] mpt2sas: fix driver version inconsistencyEric Moore2009-05-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In Commit commit 3b8b5c9b1f08660583e5dfe095c24170df62f1d2 Author: Eric Moore <eric.moore@lsi.com> Date: Tue Apr 21 15:44:27 2009 -0600 [SCSI] mpt2sas : bump driver version to 01.100.02.00 The MPT2SAS_MAJOR_VERSION didn't get bumped from 00 to 01 so applications will see it incorrectly as 00.100.02.00 driver instead of 01.100.02.00. Fix by making MPT2SAS_MAJOR_VERSION match the major number in MPT2SAS_DRIVER_VERSION Signed-off-by: Eric Moore <eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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