- 29 Dec, 2008 40 commits
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FUJITA Tomonori authored
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>
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FUJITA Tomonori authored
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:
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FUJITA Tomonori authored
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:
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James Smart authored
Signed-off-by:
James Smart <James.Smart@emulex.com> Signed-off-by:
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James Smart authored
Signed-off-by:
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James Smart authored
Add SCSI data path, error handling, and debugfs code to complete BlockGuard support. Signed-off-by:
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James Smart authored
Update struct definitions, #defines, sysfs entries, and initialization to support BlockGuard. Signed-off-by:
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James Smart authored
- 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:
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James Smart authored
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:
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James Smart authored
- 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:
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James Smart authored
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:
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James Smart authored
- 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:
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James Smart authored
- 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:
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James Smart authored
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:
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James Smart authored
Add kernel-doc function headers to lpfc_scsi.c Signed-off-by:
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James Smart authored
Implement lpfc_pci_suspend_one() and lpfc_pci_resume_one() and register them in the pci_driver table. Signed-off-by:
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James Smart authored
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:
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FUJITA Tomonori authored
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:
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FUJITA Tomonori authored
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:
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Brian King authored
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:
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Brian King authored
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:
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Mike Christie authored
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:
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Mike Christie authored
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:
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Mike Christie authored
We do not need to allocate a itt for data_out, so this passes the opcode to the alloc_pdu callout. Signed-off-by:
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Mike Christie authored
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:
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Mike Christie authored
This hooks iscsi_tcp into the libiscsi_tcp module and removes code that is now in libiscsi_tcp. Signed-off-by:
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Mike Christie authored
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:
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Mike Christie authored
Add iscsi_tcp prefix to most functions. Some are not changed becuase they are going to move in the next patch. Signed-off-by:
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Mike Christie authored
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:
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Mike Christie authored
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:
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Mike Christie authored
This converts iscsi_tcp to the new api and modifies how it handles r2ts. Signed-off-by:
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Mike Christie authored
This just converts iser to new alloc_pdu api. It still preallocates the pdu, so there is no difference. Signed-off-by:
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Mike Christie authored
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:
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Mike Christie authored
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:
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James Bottomley authored
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 authored
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:
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Finn Thain authored
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:
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Finn Thain authored
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:
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Anirban Chakraborty authored
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:
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Alan Stern authored
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:
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