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* ide-scsi: convert to using the new atapi_flagsBorislav Petkov2008-07-23
| | | | | | | | | | | Remove unused IDESCSI_PC_RQ while at it. There should be no functionality change resulting from this patch. [bart: IDE_FLAG_* -> IDE_AFLAG_*, dev_flags -> atapi_flags] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-scsi: pass packet command in rq->cmdBorislav Petkov2008-07-23
| | | | | | | | | | | Make a redundant copy of the packet command bits into rq->cmd. Later, after all drivers have been converted, it'll be switched to use that in the common code instead of pc->c. There should be no functionality change resulting from this patch. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-scsi: use drive->pc_callback instead of pc->callbackBorislav Petkov2008-07-23
| | | | | | | There should be no functionality change resulting from this patch. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add struct ide_tp_ops (take 2)Bartlomiej Zolnierkiewicz2008-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add struct ide_tp_ops for transport methods. * Add 'const struct ide_tp_ops *tp_ops' to struct ide_port_info and ide_hwif_t. * Set the default hwif->tp_ops in ide_init_port_data(). * Set host driver specific hwif->tp_ops in ide_init_port(). * Export ide_exec_command(), ide_read_status(), ide_read_altstatus(), ide_read_sff_dma_status(), ide_set_irq(), ide_tf_{load,read}() and ata_{in,out}put_data(). * Convert host drivers and core code to use struct ide_tp_ops. * Remove no longer needed default_hwif_transport(). * Cleanup ide_hwif_t from methods that are now in struct ide_tp_ops. While at it: * Use struct ide_port_info in falconide.c and q40ide.c. * Rename ata_{in,out}put_data() to ide_{in,out}put_data(). v2: * Fix missing convertion in ns87415.c. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ->read_status methodBartlomiej Zolnierkiewicz2008-07-23
| | | | | | | | | | | | | | | * Remove ide_read_status() inline helper. * Add ->read_status method for reading ATA Status register and use it instead of ->INB. While at it: * Don't use HWGROUP() macro. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ->exec_command methodBartlomiej Zolnierkiewicz2008-07-23
| | | | | | | | | Add ->exec_command method for writing ATA Command register and use it instead of ->OUTBSYNC. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* driver core: remove KOBJ_NAME_LEN defineKay Sievers2008-07-22
| | | | | | | | | Kobjects do not have a limit in name size since a while, so stop pretending that they do. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Driver Core: add ability for class_find_device to start in middle of listGreg Kroah-Hartman2008-07-22
| | | | | | | | | | | | | | | This mirrors the functionality that driver_find_device has as well. We add a start variable, and all callers of the function are fixed up at the same time. The block layer will be using this new functionality in a follow-on patch. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* device create: scsi: convert device_create to device_create_drvdataGreg Kroah-Hartman2008-07-22
| | | | | | | | device_create() is race-prone, so use the race-free device_create_drvdata() instead as device_create() is going away. Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* scsi_dh: Verify "dev" is a sdev before accessing it.Chandra Seetharaman2008-07-16
| | | | | | | | | | | Before accessing the device data structure in hardware handlers, make sure it is a indeed a sdev device. Yinghai Lu <yhlu.kernel@gmail.com> found the bug on Jul 16, 2008, and later tested/verified the following fix. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* IDE: Remove unused codeElias Oltmanns2008-07-16
| | | | | | | | | | | Remove some code which has been made obsolete and hasn't worked properly before anyway. Part of the infrastructure may be reintroduced in a follow up patch to implement a working command aborting facility. Signed-off-by: Elias Oltmanns <eo@nebensachen.de> Cc: "Alan Cox" <alan@lxorguk.ukuu.org.uk> Cc: "Randy Dunlap" <randy.dunlap@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2008-07-15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (102 commits) [SCSI] scsi_dh: fix kconfig related build errors [SCSI] sym53c8xx: Fix bogus sym_que_entry re-implementation of container_of [SCSI] scsi_cmnd.h: remove double inclusion of linux/blkdev.h [SCSI] make struct scsi_{host,target}_type static [SCSI] fix locking in host use of blk_plug_device() [SCSI] zfcp: Cleanup external header file [SCSI] zfcp: Cleanup code in zfcp_erp.c [SCSI] zfcp: zfcp_fsf cleanup. [SCSI] zfcp: consolidate sysfs things into one file. [SCSI] zfcp: Cleanup of code in zfcp_aux.c [SCSI] zfcp: Cleanup of code in zfcp_scsi.c [SCSI] zfcp: Move status accessors from zfcp to SCSI include file. [SCSI] zfcp: Small QDIO cleanups [SCSI] zfcp: Adapter reopen for large number of unsolicited status [SCSI] zfcp: Fix error checking for ELS ADISC requests [SCSI] zfcp: wait until adapter is finished with ERP during auto-port [SCSI] ibmvfc: IBM Power Virtual Fibre Channel Adapter Client Driver [SCSI] sg: Add target reset support [SCSI] lib: Add support for the T10 (SCSI) Data Integrity Field CRC [SCSI] sd: Move scsi_disk() accessor function to sd.h ...
| * [SCSI] sym53c8xx: Fix bogus sym_que_entry re-implementation of container_ofBenjamin Herrenschmidt2008-07-12
| | | | | | | | | | | | | | | | | | | | The sym53c8xx driver, for some reason, seems to mostly re-implement linux/list.h with added bogosity. The main one is it's implementation of sym_que_entry which spits warnings with recent gcc's on some 64 bits architectures. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] make struct scsi_{host,target}_type staticAdrian Bunk2008-07-12
| | | | | | | | | | | | | | | | Make the needlessly global struct scsi_{host,target}_type static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] fix locking in host use of blk_plug_device()James Bottomley2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | scsi_lib.c:scsi_host_queue_ready() plugs the device with incorrect locking. It should actually have the queue lock held, but it's holding the host lock. Fix this by eliminating the call. The host ready has no need to plug the queue because if it returns 0 in scsi_request_function control transfers to not_ready which acquires the queue lock and plugs the device if its at zero depth. Reported-by: Elias Oltmanns <eo@nebensachen.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] ibmvfc: IBM Power Virtual Fibre Channel Adapter Client DriverBrian King2008-07-12
| | | | | | | | | | | | | | | | | | | | This patch adds a new device driver to support the Virtual Fibre Channel interface on IBM Power based servers. The Virtual I/O Server on IBM Power servers utilizes N-Port ID Virtualization to export a Virtual Fibre Channel adapter to the client. This driver is the client device driver. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] sg: Add target reset supportBrian King2008-07-12
| | | | | | | | | | | | | | | | Adds support for target reset to SG_SCSI_RESET. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] sd: Move scsi_disk() accessor function to sd.hMartin K. Petersen2008-07-12
| | | | | | | | | | Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] sd: Move sd.h header fileMartin K. Petersen2008-07-12
| | | | | | | | | | | | | | | | Christoph objected to having sd.h in include/scsi since it is internal to the sd driver. Move it to drivers/scsi/sd.h. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] esp: correct module name in Kconfig help for SCSI_SUNESPFrans Pop2008-07-12
| | | | | | | | | | | | | | | | | | The module name was changed from esp to sun_esp some time ago. Also correct the list of chips supported by the driver. Signed-off-by: Frans Pop <elendil@planet.nl> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] esp: Correct chip ID probing sequence.David S. Miller2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The features enable bit has to be set in the config2 register before we can be absolutely sure we will probe a correct part unique ID and family code from the transfer-count-high register. Also, reload the CFACT, STP, SOFF, and TIMEO near the end of esp_reset_esp(). From a patch by Maciej W. Rozycki. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] scsi_debug: add support for rotation speedMatthew Wilcox2008-07-12
| | | | | | | | | | | | | | | | | | | | | | Add support for VPD page b1 to scsi_debug SCSI VPD page b1 reports the nominal rotation speed of the device. Since scsi_debug is ram-based, claim to be a non-rotating medium. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] iscsi class: fix endpoint leakMike Christie2008-07-12
| | | | | | | | | | | | | | | | | | | | class_find_device gets a ref to the device so we must release it. The class will serialize access to the ep so we do not have to worry about a remove racing with the callers access, so we can simplify the use and drop the ref right away. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] iscsi class: update version numberMike Christie2008-07-12
| | | | | | | | | | | | | | Update iscsi class version number. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] libiscsi, iscsi_tcp, ib_iser: fix setting of can_queue with old tools.Mike Christie2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes two bugs that are related. 1. Old tools did not set can_queue/cmds_max. This patch modifies libiscsi so that when we add the host we catch this and set it to the default. 2. iscsi_tcp thought that the scsi command that was passed to the eh functions needed a iscsi_cmd_task allocated for it. It only needed a mgmt task, and now it does not matter since it all comes from the same pool and libiscsi handles this for the drivers. ib_iser had copied iscsi_tcp's code and set can_queue to its max - 1 to handle this. So this patch removes the max -1, and just sets it to the max. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] iscsi class: fix refcount leakMike Christie2008-07-12
| | | | | | | | | | | | | | Must do a module_out if the endpoint lookup fails. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] lpfc 8.2.7 : Update version to 8.2.7James Smart2008-07-12
| | | | | | | | | | | | | | Update lpfc driver version to 8.2.7 Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] lpfc 8.2.7 : Miscellaneous FixesJames Smart2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Miscellaneous Fixes: - Fix bug in mbox sysfs interface that locked in EAGAIN if discovery stalled. - Fix missing error message when npiv and loop are true when link up occurs. - Fix panic in lpfc_scsi_cmd_iocb_cmpl: scsi_buf was NULL, but created race conditions with other code paths. - Fix error in sysfs mailbox structure that didn't rezero on next use. - Add missing mempool_free() to attachment failure path - Fix missing put of ndlp structure during driver unload. - Fix applications unable to send mailbox commands during discovery. - Remove unused argument (type) from function lpfc_post_buffer() API - Fix vport name is not shown after hbacmd vportcreate. - Remove repeated code statements. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] lpfc 8.2.7 : Rework the worker threadJames Smart2008-07-12
| | | | | | | | | | | | | | | | | | Rework of the worker thread to make it more efficient. Make a finer-grain notfication of pending work so less time is spent checking conditions. Also made other general cleanups. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] lpfc 8.2.7 : Discovery FixesJames Smart2008-07-12
| | | | | | | | | | | | | | | | | | - Fix ADISC timeout on initiators causing devloss timeout on targets - Correct FAN processing : port state vs unreg rpi's wasn't consistent - Correct mismatches between ASICs and PLOGI that would skip PLOGI Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] lpfc 8.2.7 : Change device reset behaviorJames Smart2008-07-12
| | | | | | | | | | | | | | | | | | Prior handler was only waiting for I/O on one lun to finish before returning completion. Now, wait for all LUNs on the target. Also performed some rudimentary cleanup while in this code. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] Rename scsi_bidi_sdb_cacheMartin K. Petersen2008-07-12
| | | | | | | | | | | | | | | | The data integrity changes need to dynamically allocate scsi_data_buffers too. Rename scsi_bidi_sdb_cache for clarity. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] aacraid: prevent copy_from_user() BUG!Mark Salyzyn2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Seen: kernel BUG at arch/i386/lib/usercopy.c:872 under a 2.6.18-8.el5 kernel. Traced it to a garbage-in/garbage-out ioctl condition in the aacraid driver. Adaptec's special ioctl scb passthrough needs to check the validity of the individual scatter gather count fields to the maximum the adapter supports. Doing so will have the side effect of preventing copy_from_user() from bugging out while populating the dma buffers. This is a hardening effort, issue was triggered by an errant version of the management tools and thus the BUG should not be seen in the field. [jejb: fixed up compile failure] Signed-off-by: Mark Salyzyn <aacraid@adaptec.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] scsi_debug: Runtime-configurable sector sizeMartin K. Petersen2008-07-12
| | | | | | | | | | | | | | | | | | Make scsi_debug sector size configurable at load time instead of being a #define. Handy for testing 4KB sectors. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Acked-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] iscsi_tcp: Enable any size commandBoaz Harrosh2008-07-12
| | | | | | | | | | | | | | | | | | | | | | Let through upto the largest command of 260 defined by the scsi standard. iscsi core supports this already. Now that the scsi-ml supports it we can start using large commands. [jejb:rejections fixed up] Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] scsi: use get_unaligned_* helpersHarvey Harrison2008-07-12
| | | | | | | | | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] Replace __FUNCTION__ with __func__ in iscsi_tcp.Harvey Harrison2008-07-12
| | | | | | | | | | | | | | | | | | | | __FUNCTION__ is gcc-specific, use __func__ (Update diff by Mike Christie) Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] libiscsi, iser, tcp: remove recv_lockMike Christie2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recv lock was defined so the iscsi layer could block the recv path from processing IO during recovery. It turns out iser just set a lock to that pointer which was pointless. We now disconnect the transport connection before doing recovery so we do not need the recv lock. For iscsi_tcp we still stop the recv path incase older tools are being used. This patch also has iscsi_itt_to_ctask user grab the session lock and has the caller access the task with the lock or get a ref to it in case the target is broken and sends a tmf success response then sends data or a response for the command that was supposed to be affected bty the tmf. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] libiscsi: fix cmds_max settingMike Christie2008-07-12
| | | | | | | | | | | | | | | | | | Drivers expect that the cmds_max value they pass to the iscsi layer is the max scsi commands + mgmt tasks. This patch implements that and fixes some checks for nr cmd limits. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] iscsi class: Add session initiatorname and ifacename sysfs attrs.Mike Christie2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds two new attrs used for creating initiator ports and binding sessions to hardware. The session level initiatorname: Since bnx2i does a scsi_host per host device, we need to add the iface initiator port settings on the session, so we can create multiple initiator ports (each with different inames) per device/scsi_host. The current iname reflects that qla4xxx can have one iname per hba, and we are allocating a host per session for software. The iname on the host will remain so we can export and set the hba level qla4xxx setting. The ifacename attr: To bind a session to a some peice of hardware in userspace we maintain some mappings, but during boot or iscsid restart (iscsid contains the user space part of the driver) we need to be able to figure out which of those host mappings abstractions maps to certain sessions. This patch adds a ifacename attr, which userspace can set to id the host side of the endpoint across pivot_roots and iscsid restarts. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] iscsi_tcp: hook iscsi_tcp into iscsi_endpoint codeMike Christie2008-07-12
| | | | | | | | | | | | | | | | | | iscsi_tcp creates its ep in userspace using sockets because it is virtual, so we just check if we are sent a ep and fail if we are. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] iscsi class: add endpoint classMike Christie2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | Add sysfs representation for the endpoint, so userspace can match the host and session to the endpoint. This will allow us to set the host's parent correctly at host creation time. The next patches will convert tcp and iser, and fix iser's dma_mask bug. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] iscsi class: user device_for_each_child instead of duplicating ↵Mike Christie2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | session list Currently we duplicate the list of sessions, because we were using the test for if a session was on the host list to indicate if the session was bound or unbound. We can instead use the target_id and fix up the class so that drivers like bnx2i do not have to manage the target id space. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] iscsi_tcp: handle iscsi_cmd_task renameMike Christie2008-07-12
| | | | | | | | | | | | | | This converts iscsi_tcp to use the iscsi_task name. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] libiscsi: rename iscsi_cmd_task to iscsi_taskMike Christie2008-07-12
| | | | | | | | | | | | | | | | | | This is the second part of the iscsi task merging, and all it does it rename iscsi_cmd_task to iscsi_task and mtask/ctask to just task. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] iscsi_tcp: convert iscsi_tcp to support merged tasksMike Christie2008-07-12
| | | | | | | | | | | | | | Convert iscsi_tcp to support merged tasks. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] libiscsi: merge iscsi_mgmt_task and iscsi_cmd_taskMike Christie2008-07-12
| | | | | | | | | | | | | | | | | | | | | | There is no need to have the mgmt and cmd tasks separate structs. It used to save a lot of memory when we overprealocated memory for tasks, but the next patches will set up the driver so in the future they can use a mempool or some other common scsi command allocator and common tagging. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] libiscsi: modify libiscsi so it supports offloaded data pathsMike Christie2008-07-12
| | | | | | | | | | | | | | | | | | This patch modifies libiscsi, so drivers like bnx2i and iser can execute a command from queuecommand/send_pdu instead of having to be queued to be run in a workq. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] libiscsi, iscsi_tcp, iser: add session cmds array accessorMike Christie2008-07-12
| | | | | | | | | | | | | | | | | | | | | | Currently to get a ctask from the session cmd array, you have to know to use the itt modifier. To make this easier on LLDs and so in the future we can easilly kill the session array and use the host shared map instead, this patch adds a nice wrapper to strip the itt into a session->cmds index and return a ctask. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * [SCSI] iser: fix handling of scsi cmnds during recovery.Mike Christie2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After the stop_conn callback has returned the LLD should not touch the scsi cmds. iscsi_tcp and libiscsi use the conn->recv_lock and suspend_rx field to halt recv path processing, but iser does not have any protection. This patch modifies iser so that userspace can just call the ep_disconnect callback, which will halt all recv IO, before calling the stop_conn callback so we do not have to worry about the conn->recv_lock and suspend rx field. iser just needs to stop the send side from accessing the ib conn. Fixup to handle when the ep poll fails and ep disconnect is called from Erez. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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