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2008-12-29[SCSI] st: convert st_flush to use st_scsi_kern_executeFUJITA Tomonori1-4/+10
This replaces st_do_scsi in st_flush (WRITE FILEMARKS) with st_scsi_kern_execute. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] st: convert cross_eof to use st_scsi_kern_executeFUJITA Tomonori1-7/+14
This replaces st_do_scsi in cross_eof (SPACE) with st_scsi_kern_execute. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] st: convert do_load_unload to use st_scsi_kern_executeFUJITA Tomonori1-4/+9
This replaces st_do_scsi in do_load_unload (START STOP) with st_scsi_kern_execute. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] st: convert set_location to use st_scsi_kern_executeFUJITA Tomonori1-4/+8
This replaces st_do_scsi in set_location (LOCATE 10) with st_scsi_kern_execute. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] st: convert test_ready to use st_scsi_kern_executeFUJITA Tomonori1-8/+11
This replaces st_do_scsi in test_ready (TEST_UNIT_READY) with st_scsi_kern_execute. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] st: add st_scsi_kern_execute helper functionFUJITA Tomonori1-0/+22
st_scsi_kern_execute is a helper function to perform SCSI commands synchronously. It supports data transfer with a liner in-kernel buffer (not scatter gather). st_scsi_kern_execute internally uses scsi_execute(). The majority of st_do_scsi can be replaced with st_scsi_kern_execute. This is a preparation for rewriting st_do_scsi to remove obsolete scsi_execute_async(). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] st: move st_request initialization to st_allocate_request form st_do_scsiFUJITA Tomonori1-13/+19
This moves st_request initialization code to st_allocate_request() form st_do_scsi(). This is a preparation for making st_allocate_request() usable for everyone, not only st_do_scsi(). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Update driver version to 8.3.0James Smart1-1/+1
Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Hook lpfc's debugfs into KconfigJames Smart4-9/+16
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Add BlockGuard support (T10-DIF) codeJames Smart5-17/+1026
Add SCSI data path, error handling, and debugfs code to complete BlockGuard support. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Add BlockGuard support (T10-DIF) structs and defsJames Smart6-10/+432
Update struct definitions, #defines, sysfs entries, and initialization to support BlockGuard. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Fix some memory handling issuesJames Smart3-74/+23
- Fix mailbox buffer leak on dump mailbox completion - Fix mbuf leak in lpfc_pci_probe_one() SLI-2 mode error path - Don't allocate HBQs in interrupt context - Use correct size for FCP response buffer so that all available sense data is copied - Fix jiffies calculation to prevent crash when collecting statistical data Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Add active interrupt test for enabling MSI/MSI-X/INTxJames Smart4-154/+302
Per the recent discussions at the Linux Plumbers Conference, when enabling MSI or MSI-X, generate a test interrupt to verify the interrupt routing is working properly. If the test interrupt fails, fall back to MSI first, and if that fails as well, to INTx. If the interrupt test fails with INTx, log an error and fail the PCI probe. Also changed the use of spin_(lock|unlock) to the _irq(save|restore) variants in the interrupt handlers because with multi-message MSI-X, both interrupt handlers can now run in parallel. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Fix several minor issuesJames Smart8-50/+41
- Avoid polling HBA Error Attention when HBA's PCI channel is offline due to PCI EEH - Fix handling of RSCN with non-zero event qualifiers - Remove unnecessary sleeps during HBA initialization which slow down driver load - Fix internal and external loopback on FCoE HBAs - Fix incorrect decrement of cmd_pending count in lpfc_queuecomand error path - Fix reporting of port busy events to management application - Rename lpfc_adjust_queue_depth() to lpfc_rampdown_queue_depth() for consistency with its partner lpfc_rampup_queue_depth() - Delete redundant lpfc_cmd->start_time = jiffies assignment in lpfc_queuecommand() - Fix handling for ELS, mailbox and heartbeat time outs in the worker thread by removing unnecessary checking of the work_port_events flags. - Fix NULL pointer dereference in lpfc_prep_els_iocb - In lpfc_device_recov_npr_node(), move clearing of NLP_NPR_2B_DISC flag after call to lpfc_cancel_retry_delay_tmo() to keep targets-in-discovery count correct - Remove lpfc_probe_one()'s call to scsi_scan_host() which could cause concurrent SCSI scans to step on each other Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Fix issue with assumed Interrupt Enable Block supportJames Smart2-8/+6
The phba hbq_get address was setup before the HBA reported support for Interrupt Enable Block (INB). This caused loopback tests to fail after all HBQs had been used once. Moved setting of hba_get until after config port mailbox command completes. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Added 3 small features and improve PCI EEH supportJames Smart5-11/+139
- Added FC_REG_VPORTRSCN_EVENT to lpfc_nl.h - Added code to provide option ROM version from HBA and via sysfs - Added support for HPS bit in config port mailbox command to tell HBA that host group pointers are in host memory. - Bugfix for Extended Error Handling (EEH) support on IBM PowerPC P6 platform with MSI enabled Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Fix multiple NPIV issuesJames Smart6-35/+78
- Fix lock up on rmmod with vports defined by having lpfc_pci_remove_one() invoke fc_vport_terminate() to remove all the vports before invoking fc_remove_host() for the physical port - Fix echotest failure when NPIV is enabled - Add the vport_disable function to the physical port's transport template to make the vport disable attribute visible - Set the vport state to DISABLE on create if the disable flag is true - Call lpfc_alloc_sysfs_attr() for vports so that statistical data collection works on them - Support setting a vport's symbolic name via sysfs by writing to /sys/class/fc_vport/vportX/symbolic_name - Fix create vport fails when link is down or in loop mode. Should be able to be create vports any time NPIV is enabled - Fix slow vport deletes when deleting multiple vports at once Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Fix system crash due to uninitialized node accessJames Smart2-40/+56
In the IOCB completion handler, always check if the node is valid before accessing the node object. Added lpfc_initialize_node() to initialize nodes. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Add kernel-doc headers to lpfc_scsi.cJames Smart1-13/+274
Add kernel-doc function headers to lpfc_scsi.c Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Add support for Power Management Suspend/Resume operationsJames Smart2-5/+117
Implement lpfc_pci_suspend_one() and lpfc_pci_resume_one() and register them in the pci_driver table. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] lpfc 8.3.0 : Rework RSCN netlink event to send entire RSCN payloadJames Smart7-26/+126
Rework RSCN netlink event to send entire RSCN payload Also replaces (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX) with LPFC_NL_VENDOR_ID Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] retry with missing data for INQUIRYFUJITA Tomonori1-1/+11
This patch changes scsi_probe_lun() to retry INQUIRY if the device has not actually sent back any INQUIRY data, This enables the Thecus N2050 storage device to work better. The firmware on that device starts up strangely; it sends no data in response to the initial INQUIRY, and it sends the INQUIRY information in response to the followup REQUEST SENSE. But after that it works better, so retrying the INQUIRY is enough to get it going. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] add residual argument to scsi_execute and scsi_execute_reqFUJITA Tomonori11-28/+38
scsi_execute() and scsi_execute_req() discard the residual length information. Some callers need it. This adds residual argument (optional) to scsi_execute and scsi_execute_req. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] ibmvfc: Fix errors due to inconsistent command dataBrian King1-0/+2
In order to ensure the VIOS sees a consistent command buffer, we need to add a memory barrier after building the command buffer but before sending the command. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] ibmvfc: Delay NPIV login retry and add retriesBrian King2-6/+15
Adds a delay prior to retrying a failed NPIV login. This fixes a scenario if the backing fibre channel adapter is getting reset due to an EEH event, NPIV login will fail. Currently, ibmvfc retries three times very quickly, resets the CRQ and tries one more time. If the adapter is getting reset due to EEH, this isn't enough time. This adds a delay prior to retrying a failed NPIV login and also increments the number of retries. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] libiscsi_tcp: support padding offloadMike Christie4-22/+29
cxgb3i does not offload the processing of the header, but it will always process the padding. This patch adds a padding offload flag to detect when the LLD supports this. The patch also modifies the header processing so that we do not try to read/bypass the header dugest in the skb. cxgb3i will not include it with the header like with other offload cards. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] libiscsi: handle init task failures.Mike Christie1-2/+2
Mgmt setup used to not fail so we did not have to check the return value. Now with cxgb3i it can so this has us pass up a error. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] libiscsi: pass opcode into alloc_pdu calloutMike Christie5-11/+11
We do not need to allocate a itt for data_out, so this passes the opcode to the alloc_pdu callout. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] libiscsi: allow drivers to modify the itt sent to the targetMike Christie3-15/+40
bnx2i and cxgb3i need to encode LLD info in the itt so that the firmware/hardware can process the pdu. This patch allows the LLDs to encode info in the task->hdr->itt that they setup in the alloc_pdu callout (any resources that are allocated can be freed with the pdu in the cleanup_task callout). If the LLD encodes info in the itt they should implement a parse_pdu_itt callout. If parse_pdu_itt is not implemented libiscsi will do the right thing for the LLD. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] iscsi_tcp: hook iscsi_tcp into new libiscsi_tcp moduleMike Christie3-1338/+259
This hooks iscsi_tcp into the libiscsi_tcp module and removes code that is now in libiscsi_tcp. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] iscsi_tcp: split module into lib and lldMike Christie2-0/+1291
As explained in the previous mails, cxgb3i needs iscsi_tcp's r2t/data_out and data_in procesing so this just moves functions that both drivers want to use to a new module libiscsi_tcp. The next patch will hook iscsi_tcp in. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] iscsi_tcp: add iscsi_tcp prefix to iscsi_tcp functionsMike Christie1-22/+16
Add iscsi_tcp prefix to most functions. Some are not changed becuase they are going to move in the next patch. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] libiscsi: change login data buffer allocationMike Christie1-2/+4
This modifies the login buffer allocation to use __get_free_pages. It will allow drivers that want to send this data with zero copy operations to easily line things up on page boundaries. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] iscsi_tcp: remove unused r2t handlingMike Christie1-91/+0
libiscsi's iscsi_prep_data_out_pdu now handles what iscsi_tcp's helpers were so we can remove iscsi_tcp's helpers. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] iscsi_tcp: convert to new alloc_hdr apiMike Christie2-149/+121
This converts iscsi_tcp to the new api and modifies how it handles r2ts. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] iser: convert iser to new alloc_pdu apiMike Christie2-26/+27
This just converts iser to new alloc_pdu api. It still preallocates the pdu, so there is no difference. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] libiscsi: prepare libiscsi for new offload engines by modifying unsol ↵Mike Christie3-70/+156
data code cxgb3i offloads data transfers. It does not offload the entire scsi/iscsi procssing like qla4xxx and it does not offload the iscsi sequence processing like how bnx2i does. cxgb3i relies on iscsi_tcp for the seqeunce handling so this changes how we transfer unsolicitied data by adding a common r2t struct and helpers. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] iscsi_tcp: prepare helpers for LLDs that can offload some operationsMike Christie2-33/+92
cxgb3i is unlike qla4xxx and bnx2i in that it does not offload entire scsi commands or iscsi sequences. Instead it only offloads the transfer of a ISCSI DATA_IN pdu's data, the digests and padding. This patch fixes up the iscsi tcp recv path so that it exports its skb recv processing so cxgb3i and other drivers can call them. All they have to do is pass the function the skb with the hdr or data pdu header and this function will do the rest. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] remove timeout from struct scsi_deviceJames Bottomley1-2/+0
by removing the unused timeout parameter we ensure a compile failure if anyone is accidentally still using it rather than the block timeout. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] st: update to use block timeoutJames Bottomley1-19/+28
Since we're trying to eliminate struct scsi_device timeout, the tape driver has to be updated to use the block queue timeout instead. The tape use of scsi_device timeout looks to be self consistent, so I don't think this necessarily fixes any bug, but it has to be done to allow me to remove the timeout parameter from struct scsi_device. Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] mac_esp: fix for quadras with two esp chipsFinn Thain1-23/+58
On the Quadra 900 and 950 there are two ESP chips sharing one IRQ. Because the shared IRQ is edge-triggered, we must make sure that an IRQ transition from one chip doesn't go unnoticed when the shared IRQ is already active due to the other. This patch prevents interrupts getting lost so that both SCSI busses may be used simultaneously. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] m68k: mac_esp asm fixFinn Thain1-9/+10
Fix asm constraints and arguments so as not to transfer an odd byte when there may be more words to transfer. The bug would probably also cause exceptions sometimes by transferring one too many bytes. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] qla2xxx: Code changes for vport bus resetAnirban Chakraborty2-8/+11
The following patch changes the handling of bus reset when issued from a vport. In the bus reset code, an extra check is made to make sure that the lip reset is not done before resetting the targets if the bus reset came from a vport. Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] simplify scsi_io_completion()Alan Stern1-59/+77
This patch (as1142b) consolidates a lot of repetitious code in scsi_io_completion(). It also fixes a few comments. Most importantly, however, it clearly distinguishes among the three sorts of retries that can be done when a command fails to complete: Unprepare the request and resubmit it, so that a new command will be created for it. Requeue the request directly so that it will be retried immediately using the same command. Requeue the request so that it will be retried following a short delay. Complete the remainder of the request with an I/O error. [jejb: Updates 1. For several error conditions, we would now print the sense twice in slightly different ways, so unify the location of sense printing. 2. I added more descriptions to actual failure conditions for better debugging 3. according to spec, ABORTED_COMMAND is supposed to be retried (except on DIF failure). Our old behaviour of erroring it looks to be a bug. 4. I'd prefer not to default initialise the action variable because that ensures that every leg of the error handler has an associated action and the compiler will warn if someone later accidentally misses one or removes one. ] Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] ibmvfc: Driver version 1.0.4Brian King1-2/+2
Bump driver version Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] ibmvfc: Handle port login required responseBrian King2-0/+4
The virtual fibre channel stack can return a failure response for a command indicating the port login has been invalidated without sending the client an async event. Add code to handle this response and initiate a PLOGI. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] ibmvfc: Fix command timeouts due to cached CRQ accessBrian King1-8/+8
The CRQs used by the ibmvfc driver are read and written by both the client and the server. Therefore, we need to mark them volatile so that we do not cache their contents when handling an interrupt. This fixes a problem which can surface as occasional command timeouts. No commands were actually timing out, but due to accessing cached data for the CRQ in the interrupt handler, the interrupt was not processing all command completions as it should. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] ibmvfc: Fix oops in interrupt handlerBrian King1-1/+1
Fixes an oops that can occur in the interrupt handler if we get a lot of async events. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] scsi_dh_rdac: Add LSI vendor and product ids in rdac device listBabu Moger1-0/+2
[jejb: fixed whitespace damage] Signed-off-by: Babu Moger <Babu.Moger@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] fusion: use ARRAY_SIZEJulia Lawall1-6/+6
ARRAY_SIZE is more concise to use when the size of an array is divided by the size of its type or the size of its first element. Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: "Prakash, Sathya" <Sathya.Prakash@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>