- 08 Oct, 2010 2 commits
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Kai Makisara authored
This patch adds a new MTIOCTOP operation MTWEOFI that writes filemarks with immediate bit set. This means that the drive does not flush its buffer and the next file can be started immediately. This speeds up writing in applications that have to write multiple small files. Signed-off-by:
Kai Makisara <kai.makisara@kolumbus.fi> Signed-off-by:
James Bottomley <James.Bottomley@suse.de>
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Darrick J. Wong authored
sd will get hung up issuing commands to flush write cache if a SAS device behind the expander is unplugged without warning. Change libsas to reject commands to domain devices that have already gone away. [maciej.trela@intel.com: removed setting ->gone in sas_deform_port() to permit sync cache commands at module removal] Signed-off-by:
Darrick J. Wong <djwong@us.ibm.com> Tested-by:
Haipao Fan <haipao.fan@intel.com> Signed-off-by:
Maciej Trela <maciej.trela@intel.com> Signed-off-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
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- 07 Oct, 2010 24 commits
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bo yang authored
To add the Online controller reset support, driver need to do: a). reset the controller chips -- Xscale and Gen2 which will change the function calls and add the reset function related to this two chips. b). during the reset, driver will store the pending cmds which not returned by FW to driver's pending queue. Driver will re-issue those pending cmds again to FW after the OCR finished. c). In driver's timeout routine, driver will report to OS as reset. Also driver's queue routine will block the cmds until the OCR finished. d). in Driver's ISR routine, if driver get the FW state as state change, FW in Failure status and FW support online controller reset (OCR), driver will start to do the controller reset. e). In driver's IOCTL routine, the application cmds will wait for the OCR to finish, then issue the cmds to FW. Signed-off-by Bo Yang <bo.yang@lsi.com> Signed-off-by: -
James Smart authored
Update lpfc driver version to 8.3.17 Signed-off-by:
Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by:
James Smart <james.smart@emulex.com> Signed-off-by:
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James Smart authored
Replace graceful teardown steps with the singular function reset command. Signed-off-by:
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James Smart authored
- Fail I/Os with incomplete data that complete with SCSI Check condition. - Complete aborted I/Os with host_scribble equal to NULL with success. - Initialize context1 field of iocbq in the new_scsi_buf routines. Signed-off-by:
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James Smart authored
- Add support for bsg MBX_SLI4_CONFIG. - Multiply linkup timeout in loopback test code by 100. - Set iocb_stat to 0 in the lpfcdiag_loop_get_xri function. Signed-off-by:
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James Smart authored
- Added driver support for management application to pass down two security specific mailbox commands (MBX_SECURITY_MGMT and MBX_AUTH_PORT) - Added driver support for handling FIPS zeroization trap of host ERATT ER8, performing selective reset and bringing the device up. - Added code to detect INIT_LINK mailbox command completion returning status MBXERR_SEC_NO_PERMISSION. - Increased the wait timeout on host status register HS_FFRDY and HS_MBRDY being set. - Remove the port offline code from the Heartbeat TMO handler. Signed-off-by:
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James Smart authored
- Move Unload flag earlier in vport deletei to stop ELS traffic - Replaced some unnecessary spin_lock_irqsave with spin_lock_irq - Fixed circular spinlock dependency between low-level driver and SCSI midlayer - Remove duplicate code from lpfc_els_retry routine - Make all error values negative Signed-off-by:
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Christof Schmitt authored
With the change that drivers have to explicitly request the serial number for SCSI commands, this field should not be part of the zfcp traces. It is not worth the effort to request the serial number only for tracing purposes, so simply remove this field from the debug traces. Reviewed-by:
Swen Schillig <swen@vnet.ibm.com> Signed-off-by:
Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by:
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Wayne Boyer authored
The structure definitions for reporting array errors did not have the correct size for the Array WWID field. This patch fixes those definitions. It also fixes part of the output formatting that did not have newlines and fixes size calculations. Signed-off-by:
Wayne Boyer <wayneb@linux.vnet.ibm.com> Acked-by:
Brian King <brking@linux.vnet.ibm.com> Signed-off-by:
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Jiri Slaby authored
It was disabled when x86_64 was introduced, but it is reported to be working on 64bit by two different people, so let's enable it back again. Signed-off-by:
Jiri Slaby <jslaby@suse.cz> Cc: "Juergen E. Fischer" <fischer@norbit.de> Signed-off-by:
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Hannes Reinecke authored
For ALUA we should be handling all states, independent of whether the mode is explicit or implicit. For 'Transitioning' we should retry for a certain amount of time; after that we're setting the port to 'Standby' and return SCSI_DH_RETRY to signal upper layers a retry is in order here. Signed-off-by:
Hannes Reinecke <hare@suse.de> Acked-by:
Mike Snitzer <snitzer@redhat.com> Signed-off-by:
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kxie@chelsio.com authored
Update cxgb4i connection setting and pagepod programming. Signed-off-by:
Karen Xie <kxie@chelsio.com> Reviewed-by:
Mike Christie <michaelc@cs.wisc.edu> Signed-off-by:
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kxie@chelsio.com authored
Signed-off-by:
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kxie@chelsio.com authored
Fixed the locking and releasing skb in the case of error in the pdu read path, and added define iscsi_task_cxgbi_data to access the private data inside the iscsi_task. Signed-off-by:
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kxie@chelsio.com authored
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Brian King authored
If a Virtual I/O server is rebooted, the client fibre channel sees a transport event on its CRQ, which causes it to attempt to reconnect to the CRQ. For a period of time during the VIOS reboot, the client's attempts to register the CRQ will return H_CLOSED, indicating the server side is not currently registered. The ibmvfc driver was not handling this well and was taking the virtual adapter offline. Fix this by re-enabling our interrupt and waiting for the event on our CRQ indicating the server is back, at which point we can reconnect. Signed-off-by:
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Michael Reed authored
Following a site power outage which re-enabled all the ports on my FC switches, my system subsequently booted with far too many luns! I had let it run hoping it would make multi-user. It didn't. :( It hung solid after exhausting the last sd device, sdzzz, and attempting to create sdaaaa and beyond. I was unable to get a dump. Discovered using a 2.6.32.13 based system. correct this by detecting when the last index is utilized and failing the sd probe of the device. Patch applies to scsi-misc-2.6. Signed-off-by:
Michael Reed <mdr@sgi.com> Cc: Stable Tree <stable@kernel.org> Signed-off-by:
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Mike Christie authored
This adds a fc host dev loss sysfs file. Instead of calling into the driver using the get_host_def_dev_loss_tmo callback, we allow drivers to init the dev loss like is done for other fc host params, and then the fc class will handle updating the value if the user writes to the new sysfs file. Signed-off-by:
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Mike Christie authored
This removes the driver's get_host_def_dev_loss_tmo callback and just has the driver set the dev loss using the fc class fc_host_dev_loss_tmo macro like is done for other fc params. It also adds compat support for the driver's existing dev loss and nodev sysfs and modparams. Signed-off-by:
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Mike Christie authored
This removes the driver's get_host_def_dev_loss_tmo callback and just has the driver set the dev loss using the fc class fc_host_dev_loss_tmo macro like is done for other fc params. Signed-off-by:
Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by:
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Mike Christie authored
This removes the driver's get_host_def_dev_loss_tmo callback and just has the driver set the dev loss using the fc class fc_host_dev_loss_tmo macro like is done for other fc params. This patch also removes the module dev loss param. To override the value the fc host sysfs value being added in the fc class patch can be used instead of the driver module param. Signed-off-by:
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Mike Christie authored
This removes the driver's get_host_def_dev_loss_tmo callback and just has the driver set the dev loss using the fc class fc_host_dev_loss_tmo macro like is done for other fc params. This also adds a set rport dev loss function so the fc class host dev loss tmp sysfs support being added in the fc class patch can update rports. Signed-off-by:
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Jiri Slaby authored
We use read/write[bslq] but do not include linux/io.h. This causes build failures on PPC. Include that file. Signed-off-by:
Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by:
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David Milburn authored
Some cards (like mvsas) have issue troubles if non-NCQ commands are mixed with NCQ ones. Fix this by using the libata default NCQ check routine which waits until all NCQ commands are complete before issuing a non-NCQ one. The impact to cards (like aic94xx) which don't need this logic should be minimal Cc: Stable Tree <stable@kernel.org> Signed-off-by:
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- 17 Sep, 2010 14 commits
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Martin K. Petersen authored
Add support for the Thin Provisioning VPD page and use the TPU and TPWS bits to switch between UNMAP and WRITE SAME(16) for discards. If no TP VPD page is present we fall back to old scheme where the max descriptor count combined with the max lba count are used trigger UNMAP. Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
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Krishna Gudipati authored
We have flattened the BFA hierarchy and also reduced the number of source and header files we used to have earlier. Signed-off-by:
Krishna Gudipati <kgudipat@brocade.com> Signed-off-by:
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Swen Schillig authored
Replace the zfcp_modify_<xxx>_status functions and its accompanying wrappers with dedicated status modifier functions. This eases code readability and maintenance. Signed-off-by:
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Christof Schmitt authored
The steps for setting the zfcp_adapter online are the same in zfcp_ccw_set_online and zfcp_ccw_activate. Remove the code duplication by calling zfcp_ccw_activate from zfcp_ccw_set_online. Reviewed-by:
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Christof Schmitt authored
Move the code evaluating the ACL/CFDC specific errors to the file zfcp_cfdc.c. With this change, all code related to the old access control feature is kept in one file, not split across zfcp_erp.c and zfcp_fsf.c. Reviewed-by:
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Christof Schmitt authored
Instead of calling the same handler for both, I/O and task management commands, use different handlers that call a function for the common part. Reviewed-by:
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Christof Schmitt authored
With the change to use the data on the SCSI device, iterating through all LUNs/scsi_devices takes the SCSI host_lock. This triggers warnings from the lock dependency checker: ========================================================= [ INFO: possible irq lock inversion dependency detected ] 2.6.34.1 #97 --------------------------------------------------------- chchp/3224 just changed the state of lock: (&(shost->host_lock)->rlock){-.-...}, at: [<00000000003a73f4>] __scsi_iterate_devices+0x38/0xbc but this lock took another, HARDIRQ-unsafe lock in the past: (&(&qdio->req_q_lock)->rlock){+.-...} and interrupts could create inverse lock ordering between them. other info that might help us debug this: [ 24.972394] 2 locks held by chchp/3224: #0: (&(sch->lock)->rlock){-.-...}, at: [<0000000000401efa>] do_IRQ+0xb2/0x1e4 #1: (&adapter->port_list_lock){.-....}, at: [<0000000000490302>] zfcp_erp_modify_adapter_status+0x9e/0x16c [...] ========================================================= [ INFO: possible irq lock inversion dependency detected ] 2.6.34.1 #98 --------------------------------------------------------- chchp/3235 just changed the state of lock: (&(shost->host_lock)->rlock){-.-...}, at: [<00000000003a73f4>] __scsi_iterate_devices+0x38/0xbc but this lock took another, HARDIRQ-unsafe lock in the past: (&(&qdio->stat_lock)->rlock){+.-...} and interrupts could create inverse lock ordering between them. other info that might help us debug this: 2 locks held by chchp/3235: #0: (&(sch->lock)->rlock){-.-...}, at: [<0000000000401efa>] do_IRQ+0xb2/0x1e4 #1: (&adapter->port_list_lock){.-.-..}, at: [<00000000004902f6>] zfcp_erp_modify_adapter_status+0x9e/0x16c [...] To stop this warning, change the request queue lock to disable irqs, not only softirq. The changes are required only outside of the critical "send fcp command" path. Reviewed-by: -
Christof Schmitt authored
Enable the LUN scanning mechanism in the SCSI midlayer: - Do not set the disable_target_scan bit in the FC transport class. - Set max_lun to 0xFFFFFFFF to allow the midlayer scan to include the two-level hierachical LUNs (like 0x40XX40XX00000000, but in SCSI midlayer LUN format). - Set max_id to a high value to allow triggering the SCSI device rescan from sysfs. When running in NPIV mode, zfcp accepts all LUNs in slave_attach. When running in non-NPIV mode, the list of zfcp_unit structs determines which SCSI devices are allowed on the current system. Reviewed-by:
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Christof Schmitt authored
This is the large change to switch from using the data in zfcp_unit to zfcp_scsi_dev. Keeping everything working requires doing the switch in one piece. To ensure that no code keeps using the data in zfcp_unit, this patch also removes the data from zfcp_unit that is now being replaced with zfcp_scsi_dev. For zfcp, the scsi_device together with zfcp_scsi_dev exist from the call of slave_alloc to the call of slave_destroy. The data in zfcp_scsi_dev is initialized in zfcp_scsi_slave_alloc and the LUN is opened; the final shutdown for the LUN is run from slave_destroy. Where the scsi_device or zfcp_scsi_dev is needed, the pointer to the scsi_device is passed as function argument and inside the function converted to the pointer to zfcp_scsi_dev; this avoids back and forth conversion betweeen scsi_device and zfcp_scsi_dev. While changing the function arguments from zfcp_unit to scsi_device, the functions names are renamed form "unit" to "lun". This is to have a seperation between zfcp_scsi_dev/LUN and the zfcp_unit; only code referring to the remaining configuration information in zfcp_unit struct uses "unit". Reviewed-by:
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Christof Schmitt authored
With the change for the LUN data to be part of the scsi_device, the slave_destroy callback will be the final call to the zfcp_erp_unit_shutdown function. The erp tries to acquire a reference to run the action asynchronously and fail, if it cannot get the reference. But calling scsi_device_get from slave_destroy will fail, because the scsi_device is already in the state SDEV_DEL. Introduce a new call into the zfcp erp to solve this: The function zfcp_erp_unit_shutdown_wait will close the LUN and wait for the erp to finish without acquiring an additional reference. The wait allows to omit the reference; the caller waiting for the erp to finish already has a reference that holds the struct in place. Reviewed-by:
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Christof Schmitt authored
These sysfs attributes will require different functions. Implement them without using macros, so that the open coded functions can be changed later. Reviewed-by:
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Christof Schmitt authored
Move the code for managing zfcp_unit devices to the new file zfcp_unit.c. This is in preparation for the change that zfcp_unit will only track the LUNs configured via unit_add, other data will be moved from zfcp_unit to the new struct zfcp_scsi_dev. Reviewed-by:
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Christof Schmitt authored
Add a new data structure zfcp_scsi_dev that holds zfcp private data for each SCSI device. Use scsi_transport_reserve_device to let the SCSI midlayer automatically allocate this with each SCSI device. Reviewed-by:
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Brian King authored
By default, ibmvfc does not log any async events in order to avoid flooding the log with them. Improve on this by logging by default events that are not likely to flood the log, such as link up/down. Having these events in the log will improve the ability to debug issues with ibmvfc. Signed-off-by:
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