- 27 Jan, 2007 17 commits
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Darrick J. Wong authored
Register libsas's default device reset code with the scsi. Signed-off-by:
Darrick J. Wong <djwong@us.ibm.com> Signed-off-by:
James Bottomley <James.Bottomley@SteelEye.com>
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Darrick J. Wong authored
This patch moves the code that handles SAS failures out of the main EH function and into a separate function. It also detects commands that have no sas_task (i.e. they completed, but with error data) and sends them into scsi_error for processing. This allows us to handle SCSI errors (and enables auto-spinup as a side effect) instead of dropping them on the floor and falling into an infinite loop. It also requires the implementation of a device reset function, which the SAS failure code has been modified to employ for REQ_DEVICE_RESET. Signed-off-by:
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Darrick J. Wong authored
Export a couple of functions from scsi_error that are needed to handle failed SCSI commands from the SAS EH. Signed-off-by:
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Darrick J. Wong authored
Get rid of: "warning: ignoring return value of sysfs_create_link..." Signed-off-by:
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Darrick J. Wong authored
sas_rphy_delete does two things: it removes the sas_rphy from the transport layer and frees the sas_rphy. This can be broken down into two functions, sas_rphy_remove and sas_rphy_free; sas_rphy_remove is of interest to sas_discover_root_expander because it calls functions that require sas_rphy_add as a prerequisite and can fail (namely sas_discover_expander). In that case, sas_discover_root_expander needs to be able to undo the effects of sas_rphy_add yet leave the job of freeing the sas_rphy to the caller of sas_discover_root_expander. This patch also removes some unnecessary code from sas_discover_end_dev to eliminate an unnecessary cycle of sas_notify_lldd_gone/found for SAS devices, thus eliminating a sas_rphy_remove call (and fixing a race condition where a SCSI target scan can come in between the gone and found call). It also moves the sas_rphy_free calls into sas_discover_domain and sas_ex_discover_end_dev to complement the sas_rphy_allocation via sas_get_port_device. This patch does not change the semantics of sas_rphy_delete. Signed-off-by:
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Darrick J. Wong authored
Currently, sas_form_port checks the given asd_sas_phy's sas_phy to see if there's already a port attached. If so, the SAS addresses of the port and the phy are compared to determine if we need to detach from the port because the addresses don't match or if we can stop; the SAS address stored in the sas_port reflects whatever device _was_ attached to the port/phy, and the SAS address stored in the sas_port reflects whatever device we just discovered. As written, the code detaches from the port if the addresses _do_ match, and prints an error if they do _not_ match. I believe this to be incorrect, as it seems more logical to keep the port if the addresses match (i.e. the phy was reset but the device didn't change), and detach it they do not (i.e. the device changed). Signed-off-by:
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Mark Haverkamp authored
Fix a typo in NCR_D700 Signed-off-by Mark Haverkamp <markh@linux-foundation.org> Signed-off-by: -
Mark Haverkamp authored
Received from Mark Salyzyn, Take the expose_physicals flag and allow the user to select default (physicals available via /dev/sg), exposed (physicals available via /dev/sd for experimental reasons) and hidden (physicals blocked from all access). This expands the functionality of the previous expose_physicals insmod parameter which was added to support some experimental configurations. Signed-off-by Mark Haverkamp <markh@linux-foundation.org> Signed-off-by: -
Mark Haverkamp authored
Received from Mark Salyzyn, Replace all if/else packet formations with platform function calls. This is in recognition of the proliferation of read and write packet types, and in the need to migrate to up-and-coming packets for new products. Signed-off-by Mark Haverkamp <markh@linux-foundation.org> Signed-off-by: -
Mark Haverkamp authored
Received from Mark Salyzyn, Add in the NEMER/ARK physical register mapping, represented in up and coming products currently under test at Adaptec. Signed-off-by Mark Haverkamp <markh@linux-foundation.org> Signed-off-by: -
Mark Haverkamp authored
Received from Mark Salyzyn, Replace all if/else communication transports with a platform function call. This is in recognition of the need to migrate to up-and-coming transports. Currently the Linux driver does not support two available communication transports provided by our products, these will be added in future patches, and will expand the platform function set. Signed-off-by Mark Haverkamp <markh@linux-foundation.org> Signed-off-by: -
Brian King authored
Bump driver version to 2.3.1. Signed-off-by:
Brian King <brking@linux.vnet.ibm.com> Signed-off-by:
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Brian King authored
Since the pci_block_user_cfg_access API was modified to track block/unblocks, it was discovered that the ipr driver had a path through its code (in PCI error recovery) which would unblock when not previously blocked. Signed-off-by:
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Brian King authored
Don't fail initialization of an adapter if the PCI-X registers cannot be found since it may be a PCI-E adapter. Signed-off-by:
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Brian King authored
Since ipr handles dynamic ids, it must handle driver_data not being set, so remove the current usage of driver_data so it can be used for other things in future patches. Signed-off-by:
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Eric Moore authored
Here are the lastest mpi headers for mpt fusion driver, which defines the firmware to driver interface. Signed-off-by:
Eric Moore <Eric.Moore@lsi.com> Signed-off-by:
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Alexis Bruemmer authored
fix typos and bump version number Signed-off-by:
Alexis Bruemmer <alexisb@us.ibm.com> Signed-off-by:
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- 13 Jan, 2007 23 commits
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Darrick J. Wong authored
The EH should fall into I_T recovery (and potentially stronger remedies) if ABORT TASK fails. Signed-off-by:
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Darrick J. Wong authored
Track sas_ha_struct state so that we ignore events that come in while we're shutting things down. Signed-off-by:
Malahal Naineni <malahal@us.ibm.com> Signed-off-by:
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Darrick J. Wong authored
Convert the phy port locks to use irq spinlocks. Signed-off-by:
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Darrick J. Wong authored
Add the necessary hooks to the aic94xx driver to support the asynchronous SCSI device scan infrastructure. Signed-off-by:
Matthew Wilcox <matthew@wil.cx> Signed-off-by:
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Darrick J. Wong authored
Allowing the phy reset controls to be world-triggerable does not seem like a terribly good idea because SAS devices can be disrupted (and ATA devices are really disrupted) by a phy reset. By default only root should be able to do things like that. Signed-off-by:
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Darrick J. Wong authored
Extend the use of the DDB lock to include all DDB accesses, because DDB updates now occur from multiple threads. This fixes the SMP timeout problems that we were occasionally seeing with a x260, because the controller got confused when the DDBs got corrupted. Signed-off-by:
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Darrick J. Wong authored
Ed Chim of Adaptec informs us that the DDB registers need to be zeroed at initialization time and that some SCB initializations need to happen even if we don't use the SCB. Signed-off-by:
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Darrick J. Wong authored
The vmalloc() blob holding the sequencer firmware wasn't being released at module unload time, which resulted in a memory leak. Signed-off-by:
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Darrick J. Wong authored
Now that task aborts and device port resets are done by the EH, we can remove all the code that set up workqueues and such and simply call sas_task_abort and let libsas figure things out. Signed-off-by: -
Darrick J. Wong authored
sas_task_abort() should simply abort the upper-level SCSI command and wait until the error handler to send the actual ABORT TASK command. By deferring things to the EH we simplify the concurrency coordination and eliminate some race conditions. Note that sas_task_abort has a few hooks to handle libsas internal commands properly too. Also rename do_sas_task_abort to __sas_task_abort just in case we really want to abort the task *right now* and we don't have a scsi_cmnd attached to the command. This is a hook for libata internal commands to abort. Signed-off-by:
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Darrick J. Wong authored
When a SAS LLDD needs to request a device port reset, it needs to have all commands aborted before it can reset the port. Since commands are put on the EH's list in the order that they were queued, the LLDD can set a "need reset" flag in the last task to be aborted so that the EH can reset the port after all commands are aborted. Signed-off-by:
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Darrick J. Wong authored
This flag is no longer necessary because we push tasks to be aborted into the EH as soon as we possibly can, and let the SCSI EH code take care of the coordination for which this flag was used. Signed-off-by:
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Darrick J. Wong authored
In this driver, TMF_QUERY_TASK translates to QUERY_SSP_TASK. The sequencer, it seems, is perfectly happy sending us a SSP response, which this function promptly "converts" into TMF_RESP_FUNC_FAILED. This leads to the SAS EH making bad decisions based on bad data, so we should not perform the conversion in this case. Signed-off-by:
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Darrick J. Wong authored
Magic number cleanup. Signed-off-by:
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Darrick J. Wong authored
The aic94xx module has a parameter that looks like it should set lldd_max_execute_num in the sas_ha, but it never sets this value. Either we should set it or remove the parameter. This allows us to enable task collector mode for this driver, though it is still off by default. Signed-off-by:
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Darrick J. Wong authored
If we use task collector mode, we can end up destroying the task collector thread before we release the ports, which is bad if a port release causes a disk I/O (such as cache flushing). Signed-off-by:
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Darrick J. Wong authored
Every so often, a scsi_cmnd will time out, and the libsas timeout handler will discover that the scsi_cmnd does not have a sas_task attached to it. This can happen in two cases: (1) the scsi_cmnd actually made it through libsas to the HBA and is now going through scsi_done, or (2) the scsi_cmnd has been held up (host lock, slab alloc, etc) and libsas has not yet attached a sas_task. In both cases, it is safe to ask SCSI for more time to process the command via EH_RESET_TIMER; we cannot blindly return EH_HANDLED because if (2) happens, we could end up calling scsi_done while another CPU is heading towards sas_queuecommand, which causes slab corruption when sas_task_done updates the freed scsi_cmnd. Signed-off-by:
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Darrick J. Wong authored
This patch lets a user arbitrarily enable or disable a phy via sysfs. Potential applications include shutting down a phy to replace one lane of wide port, and (more importantly) providing a method for the libata SATL to control the phy. Signed-off-by:
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Darrick J. Wong authored
[SCSI] libsas: Don't give scsi_cmnds to the EH if they never made it to the SAS LLDD or have already returned On a system with many SAS targets, it appears possible that a scsi_cmnd can time out without ever making it to the SAS LLDD or at the same time that a completion is occurring. In both of these cases, telling the LLDD to abort the sas_task makes no sense because the LLDD won't know about the sas_task; what we really want to do is to increase the timer. Note that this involves creating another sas_task bit to indicate whether or not the task has been sent to the LLDD; I could have implemented this by slightly redefining SAS_TASK_STATE_PENDING, but this way seems cleaner. This second version amends the aic94xx portion to set the TASK_AT_INITIATOR flag for all sas_tasks that were passed to lldd_execute_task. Signed-off-by:
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Darrick J. Wong authored
sas_get_port_device assigns a rphy to a domain device in anticipation of finding a disk. When a discovery error occurs in sas_discover_{sata,sas,expander}*, however, we need to clean up that rphy and the port device list so that we don't GPF. In addition, we need to check the result of the second sas_notify_lldd_dev_found. This patch seems ok on a x260, x366 and x206m. This patch fixes up sas_expander.c separately because jejb has some cleanup patches of his own that are a prerequisite. Signed-off-by: -
Darrick J. Wong authored
sas_get_port_device assigns a rphy to a domain device in anticipation of finding a disk. When a discovery error occurs in sas_discover_{sata,sas,expander}*, however, we need to clean up that rphy and the port device list so that we don't GPF. In addition, we need to check the result of the second sas_notify_lldd_dev_found. This patch seems ok on a x260, x366 and x206m. Signed-off-by: -
Seokmann Ju authored
Removed spin_unlock_irq()/spin_lock_irq() pairs surrounding starget_for_each_device() calls. As Matthew W. pointed out, starget_for_each_device() can be called under a spinlock being held. The change has been tested and verified on qla2xxx.ko module. Thanks Matthew W. and Hisashi H. for help. Signed-off-by:
Andrew Vasquez <Andrew.vasquez@qlogic.com> Signed-off-by:
Seokmann Ju <Seokmann.ju@qlogic.com> Signed-off-by:
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Kurt Garloff authored
Hi, Minor typo ... In my first iteration of patches (that got merged), the BLIST_ATTACH_PQ3 actually had the value 0x800000, but that got changed later to avoid conflicts. This piece must have been overlooked. You could obviously do something like %x and then add the bitflags, but that looks overkill for something that does not tend to change. Please merge. (Patch applied against latest 2.6.20rc version that I tested.) From: Kurt Garloff <kurt@garloff.de> Subject: [SCSI SCAN] Fix logging message for PQ3 devices The blacklist flags BLIST_ATTACH_PQ3 has value 0x1000000, not 0x800000. Signed-off-by:
Kurt Garloff <garloff@suse.de> Signed-off-by:
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