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* Merge branch 'master' of ↵David S. Miller2010-04-07132-3523/+7202
|\ | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/bonding/bond_main.c drivers/net/via-velocity.c drivers/net/wireless/iwlwifi/iwl-agn.c
| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2010-03-19131-3523/+7201
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (69 commits) [SCSI] scsi_transport_fc: Fix synchronization issue while deleting vport [SCSI] bfa: Update the driver version to 2.1.2.1. [SCSI] bfa: Remove unused header files and did some cleanup. [SCSI] bfa: Handle SCSI IO underrun case. [SCSI] bfa: FCS and include file changes. [SCSI] bfa: Modified the portstats get/clear logic [SCSI] bfa: Replace bfa_get_attr() with specific APIs [SCSI] bfa: New portlog entries for events (FIP/FLOGI/FDISC/LOGO). [SCSI] bfa: Rename pport to fcport in BFA FCS. [SCSI] bfa: IOC fixes, check for IOC down condition. [SCSI] bfa: In MSIX mode, ignore spurious RME interrupts when FCoE ports are in FW mismatch state. [SCSI] bfa: Fix Command Queue (CPE) full condition check and ack CPE interrupt. [SCSI] bfa: IOC recovery fix in fcmode. [SCSI] bfa: AEN and byte alignment fixes. [SCSI] bfa: Introduce a link notification state machine. [SCSI] bfa: Added firmware save clear feature for BFA driver. [SCSI] bfa: FCS authentication related changes. [SCSI] bfa: PCI VPD, FIP and include file changes. [SCSI] bfa: Fix to copy fpma MAC when requested by user space application. [SCSI] bfa: RPORT state machine: direct attach mode fix. ...
| | * [SCSI] scsi_transport_fc: Fix synchronization issue while deleting vportGal Rosen2010-03-081-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The issue occur while deleting 60 virtual ports through the sys interface /sys/class/fc_vports/vport-X/vport_delete. It happen while in a mistake each request sent twice for the same vport. This interface is asynchronous, entering the delete request into a work queue, allowing more than one request to enter to the delete work queue. The result is a NULL pointer. The first request already delete the vport, while the second request got a pointer to the vport before the device destroyed. Re-create vport later cause system freeze. Solution: Check vport flags before entering the request to the work queue. [jejb: fixed int<->long problem on spinlock flags variable] Signed-off-by: Gal Rosen <galr@storwize.com> Acked-by: James Smart <james.smart@emulex.com> Cc: Stable Tree <stable@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Update the driver version to 2.1.2.1.Krishna Gudipati2010-03-071-1/+1
| | | | | | | | | | | | | | | | | | | | | Upgrade the upstream driver from 2.0.0.0 to 2.1.2.1. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Remove unused header files and did some cleanup.Krishna Gudipati2010-03-0713-238/+24Star
| | | | | | | | | | | | | | | Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Handle SCSI IO underrun case.Krishna Gudipati2010-03-071-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When IO is completed with underrun and with good SCSI status, check if the transferred bytes against scsi_cmnd->underflow, which is set to minimum number of bytes that must be transferred for this command, if is less than required minimum, complete the IO with DID_ERROR. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: FCS and include file changes.Krishna Gudipati2010-03-075-35/+22Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MS module did not invoke fdmi offline in all cases, call fdmi offline when ms module receives a port offline, so that fdmi offline is from one place in the ms module. Make changes to handle 10G speed in the conversion routine. Replaced the usage of bfa_adapter_attr_s struct with specific API's. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Modified the portstats get/clear logicKrishna Gudipati2010-03-077-706/+405Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | Modified the portstats get/clear logic for port physical/FCoE/QoS stats. Added more stats to FC Fixed some issues with FCoE stats collection. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Replace bfa_get_attr() with specific APIsKrishna Gudipati2010-03-0715-215/+195Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | bfa_ioc_attr_s is a big structure and some times could cause stack overflow if defined locally, so add specific APIs that are needed to replace the use of ioc_attr local var. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: New portlog entries for events (FIP/FLOGI/FDISC/LOGO).Krishna Gudipati2010-03-074-8/+66
| | | | | | | | | | | | | | | Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Rename pport to fcport in BFA FCS.Krishna Gudipati2010-03-0725-735/+1103
| | | | | | | | | | | | | | | | | | | | | | | | | | | Rename pport structures to fcport in BFA FCS, to resolve confusion about the port structures in the firmware, and make sure the SG page is setup correctly. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: IOC fixes, check for IOC down condition.Krishna Gudipati2010-03-072-3/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently BFA was not checking for IOC down condition when issuing getstats/clearstats Add check to see if IOC is operational, before issuing getstats/clearstats. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: In MSIX mode, ignore spurious RME interrupts when FCoE ports are ↵Krishna Gudipati2010-03-072-27/+17Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | in FW mismatch state. Use dummy interrupt handlers till chip initialization is complete. Install real interrupt handlers after chip initialization. Also removed msix installation code in bfa_iocfc_init(). Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Fix Command Queue (CPE) full condition check and ack CPE interrupt.Krishna Gudipati2010-03-075-24/+74
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixed the issue of not acknowledging the command queue full-to-non-full interrupt. Implemented separate acknowledging functions for different ASIC and interrupt mode. Fixed the case of missing CPE interrupt by always processing the pending requests in the completion path. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: IOC recovery fix in fcmode.Krishna Gudipati2010-03-071-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ioc_recover failed to work in fcmode. Fixed the code to initialize the ioc_regs.err_set during the notify_hbfail. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: AEN and byte alignment fixes.Krishna Gudipati2010-03-079-64/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace enum types with int and rearrange the fields to fix some alignment issue. Local var ioc_attr is causing the stack to overflow, so removed the usage of the local ioc_attr var and now invoking an API to return the ioc_type. Fix some AEN issues. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Introduce a link notification state machine.Krishna Gudipati2010-03-072-15/+230
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce a link notification state machine to handle next incoming link events while the current event is being delivered to the driver. When the event has been processed by the driver, the link notification state machine will queue the next event (if there is any) to the driver. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Added firmware save clear feature for BFA driver.Krishna Gudipati2010-03-074-1/+20
| | | | | | | | | | | | | | | Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: FCS authentication related changes.Krishna Gudipati2010-03-075-2/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Made FCS authentication related changes to state machines and header files. Made changes in FCS state machines to handle the case when secret string is NULL. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: PCI VPD, FIP and include file changes.Krishna Gudipati2010-03-079-59/+178
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changed PCI VPD to incorporate specific OEM vendors. Added FCoE specific interrupt latency and delay params. Added some variables needed by FIP 2.0. Added some new logging and tracing definitions. Added reserved members to make the structures (IOC, IOCFC) 64bit aligned. Changed the module identifiers, as some files were moved. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Fix to copy fpma MAC when requested by user space application.Krishna Gudipati2010-03-074-4/+20
| | | | | | | | | | | | | | | | | | | | | | | | Copy fpma MAC when requested by user space application. Added FPMA mac address to the lport attributes structure. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: RPORT state machine: direct attach mode fix.Krishna Gudipati2010-03-071-4/+11
| | | | | | | | | | | | | | | | | | | | | | | | Make sure that in direct attach mode, we do not query the name server after a target is marked offline. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Replace bfa_assert() with bfa_sm_fault()Krishna Gudipati2010-03-0714-146/+146
| | | | | | | | | | | | | | | | | | | | | | | | Replace bfa_assert() with bfa_sm_fault() to get unhandled events for debugging. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Clear LL_HALT and PSS_ERR bit when IOC crashes.Krishna Gudipati2010-03-076-4/+70
| | | | | | | | | | | | | | | | | | | | | Clear LL_HALT and PSS_ERR bit in the interrupt status register on an IOC crash. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: IOC changes: Support faster recovery and split bfa_ioc.c into ↵Krishna Gudipati2010-03-0712-459/+859
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ASIC specific code. Add support for faster IOC recovery after failure. Split bfa_ioc.c into three files: bfa_ioc.c: Common code shared between crossbow and catapult ASIC's. bfa_ioc_cb.c: Code specific to the crossbow, reg mapping and interrupt related routines. bfa_ioc_ct.c: Code specific to the catapult, reg mapping and interrupt related routines. Fix to make sure IOC reinitialize's properly on enable request - update the ioc_fwstate reg with BFI_IOC_FAIL on ioc disable mbox cmd timeout. Makefile changes to support the 2 newly added files bfa_ioc_cb.c and bfa_ioc_ct.c. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Resume BFA operations after firmware mismatch is resolved.Krishna Gudipati2010-03-047-59/+192
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bfad.c & bfad_drv.h: * Created a kernel thread from pci_probe that does the bfad start operations after BFA init done on a firmware mismatch. * The kernel thread on a fw mismatch waits for an event from IOC call back and is woken up from bfa_cb_init() on BFA init success. * In normal cases of no firmware mismatch this thread is terminated in pci_probe. bfa_fcs_lport.c, fabric.c, fcs_lport.h & vport.c: * Split the lport init to attach time and init time code, so that proper config attributes are set after firmware mismatch. bfa_iocfc.c: * Handle an IOC timer issue, where the IOC timer would expire before the init completion and send Init fail event to the driver, however IOC init continues and completes successfully at the later stage. The bfa and driver were not handling this kind of deferred init completion. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Fix to allow creation of only 190 vports on CNA.Krishna Gudipati2010-03-046-26/+24Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Brocade CNA currently supports only 190 vports (instead of 191), since there are only 192 unicast cam entries reserved for FCoE. Brocade CNA has a total of 256 unicast cam entries (192 FCoE + 64 LL) 192 cam entries = 1 burned in mac + 1 baseport FPMA mac + 190 vport FPMA macs. Made changes to the code to support only 190 vports. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: New interface to handle firmware upgrade scenarioKrishna Gudipati2010-03-0415-110/+47Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Split bfa_fcs_init() into bfa_fcs_attach() and bfa_fcs_init(). Removed empty function definitions in FCS modules Modified driver to call bfa_fcs_attach() and bfa_fcs_init() as needed. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Changes to support FDMI Driver ParameterKrishna Gudipati2010-03-044-1/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Added a FCS function to be called during driver init, to set the FDMI Driver parameter. fdmi.c: Created a disabled state when fdmi is disabled. bfad.c: * Added fdmi_enable driver parameter. * Added support to call bfa_fcs_set_fdmi_param() to initialize fcs fdmi setting. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Enable new halt interrupt in BFA.Krishna Gudipati2010-03-042-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | bfa_intr.c: Enable new halt interrupt in BFA. bfi_ctreg.h: Expose new halt interrupt bit definition to host. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Enable IOC auto-recovery and IOC type fix.Krishna Gudipati2010-03-042-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bfa_ioc.c: - Enable IOC auto-recovery by default. - When CNA is in FC mode, return IOC type as FC (not FCoE) bfa_iocfc.c: - Set fcmode before pci initialization/setup. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Defined a new LPS event to clear virtual link on a vportKrishna Gudipati2010-03-045-3/+97
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clear virtual links was not propagated upwards to bfa from fw. This resulted in HBA and switch being in an inconsistent state. So defined a new LPS event for clear virtual link on a vport, and also now clear virtual link on a baseport, is sent as a link down event from the fw. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] bfa: Added separate MSI-X module parameters.Krishna Gudipati2010-03-042-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | Added separate MSI-X module parameters to selectively enable / disable MSI-X interrupts for both Brocade HBA and CNA's. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] raid_attrs: fix dependency problemsJames Bottomley2010-03-032-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RAID attributes uses scsi_is_sdev_device() to gate some SCSI specific checking code. This causes two problems. Firstly if SCSI == n just defining scsi_is_sdev_device() to return false might not be enough to prevent gcc from emitting the code (and thus referring to undefined symbols), so this needs surrounding with an ifdef. Secondly, using scsi_is_sdev_device() when SCSI is either y or m gives a subtle problem in the m case: raid_attrs must also be m to use the symbol. Do the usual Kconfig jiggery-pokery to fix this. Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] libosd: Fix unchecked err return found by smatchBoaz Harrosh2010-03-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Doing CHECK="smatch --two-passes gives: drivers/scsi/osd/osd_initiator.c +1435 osd_finalize_request warning: assignment to 'ret' was never used Which is an unchecked possible allocation failure, Fixed. Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] sd: Fix VPD buffer allocationsMartin K. Petersen2010-03-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit e3deec09 incorrectly assumed that the B0 and B1 page lengths were limited to 32 bytes. The B0 VPD page length is defined to be 64 bytes when the device supports thin provisioning. B1 is always defined to be 64 bytes. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] lpfc 8.3.10: Update Driver version to 8.3.10James Smart2010-03-031-1/+1
| | | | | | | | | | | | | | | Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] lpfc 8.3.10: Added round robin FCF failoverJames Smart2010-03-038-162/+802
| | | | | | | | | | | | | | | | | | | | | - Added round robin FCF failover on initial or FCF rediscovery FLOGI failure. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] lpfc 8.3.10: Fix Discovery issuesJames Smart2010-03-036-51/+186
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Prevent Vport discovery after reg_new_vport completes when physical logged in using FDISC. - Remove fast FCF failover fabric name matching. Allow failover to FCFs connected to different fabrics. - Added fast FCF failover in response to FCF DEAD event on current FCF record. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] lpfc 8.3.10: Added management for LP21000 through BSG.James Smart2010-03-034-0/+358
| | | | | | | | | | | | | | | Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] lpfc 8.3.10: Update SLI interface areasJames Smart2010-03-038-63/+141
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Clear LPFC_DRIVER_ABORTED on FCP command completion. - Clear exchange busy flag when I/O is aborted and found on aborted list. - Free sglq when XRI_ABORTED event is processed before release of IOCB. - Only process iocb as aborted when LPFC_DRIVER_ABORTED is set. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] lpfc 8.3.10: Fix user interface issuesJames Smart2010-03-036-11/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | - Add Logging message for critial errors. - Remove unused variable from lpfc_nodev_tmo_show - Update supress_link_up parameter with #define values. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] lpfc 8.3.10: Fix Initialization issuesJames Smart2010-03-034-18/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Add NULL checks to the pointers for the config_async mailbox and dump_wakeup_params mailbox. - Add code to check return value of lpfc_read_sparams everywhere and handle failures appropriately. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] hpsa: remove unused members next, prev, and retry_count from command ↵Stephen M. Cameron2010-03-031-5/+2Star
| | | | | | | | | | | | | | | | | | | | | list structure. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] hpsa: Increase the number of scatter gather elements supported.Stephen M. Cameron2010-03-033-14/+131
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This uses the scatter-gather chaining feature of Smart Array controllers. 32 scatter-gather elements are embedded in the "command list", and the last element in the list may be marked as a "chain pointer", and point to an additional block of scatter gather elements. The precise number of scatter gather elements supported is dependent on the particular kind of Smart Array, and is determined at runtime by querying the hardware. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] hpsa: Clarify calculation of padding for commandlist structureStephen M. Cameron2010-03-031-4/+10
| | | | | | | | | | | | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] hpsa: mark hpsa_pci_init as __devinitStephen M. Cameron2010-03-031-1/+1
| | | | | | | | | | | | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] hpsa: remove scan threadMike Miller2010-03-032-166/+4Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The intent of the scan thread was to allow a UNIT ATTENTION/LUN DATA CHANGED condition encountered in the interrupt handler to trigger a rescan of devices, which can't be done in interrupt context. However, we weren't able to get this to work, due to multiple such UNIT ATTENTION conditions arriving during the rescan, during updating of the SCSI mid layer, etc. There's no way to tell the devices, "stand still while I scan you!" Since it doesn't work, there's no point in having the thread, as the rescan triggered via ioctl or sysfs can be done without such a thread. Signed-off-by: Mike Miller <mikem@beardog.cce.hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] hpsa: return -ENOMEM, not -1Stephen M. Cameron2010-03-031-1/+1
| | | | | | | | | | | | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * [SCSI] hpsa: fix scsi status mis-shiftStephen M. Cameron2010-03-031-1/+1
| | | | | | | | | | | | | | | | | | | | | The SCSI status does not need to be shifted. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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