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2009-10-29[SCSI] megaraid_sas: Update version number and documentationYang, Bo
Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: use the firmware boot timeout when waiting for commandsYang, Bo
use the constant MEGASAS_RESET_WAIT_TIME when waiting for firmware commands to complete (currently 3 minutes). Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: fix 64 bit sense pointer truncationYang, Bo
The current sense pointer is cast to a u32 pointer, which can truncate on 64 bits. Fix by using unsigned long instead. Signed-off-by Bo Yang<bo.yang@lsi.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: Add the support for updating the OS after ↵Yang, Bo
adding/removing the devices from FW Driver will update the OS devices after adding and deleting the device from FW. When driver receive add or delete AEN from FW, driver will send the DCMD cmd to get the System PD list from FW. Then driver will check if this device already in the OS: If add event and OS don't have the device (but it is in the list), driver add the device to OS, otherwise driver will not add. If remove event, driver will check the list, if is not in the list, but OS have the device, driver will remove the device. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: Fix the fix for fw hang caused by megaraid sas applicationYang, Bo
Add a lock to the skinny firmware initialisation sequence to prevent the two stage write being non atomic if multiple instances use it. Add a flag to the driver shutdown sequence to prevent aen ioctls being called after shutdown begins. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: add the IEEE SGE support to SAS2 controllerYang, Bo
To increase the performance, megaraid sas driver added the IEEE SGE support to support SAS2 controller. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: allocate the application cmds to sas2 controllerYang, Bo
MegaRAID SAS2 controller ioctl can't use 32 cmd for applications. Driver need to divide different number of cmds to IO and application. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: report system PDs to OSYang, Bo
When OS issue inquiry, it will check driver's internal pd_list. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: infrastructure to get PDs from FWYang, Bo
Add system PDs to OS. Driver implemented the get_pd_list function to get the system PD from FW. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: Add new megaraid SAS 2 controller support to the driverYang, Bo
Add the new megaraid sas 2 controller to the driver. megaraid sas2 is LSI next generation SAS products. driver add the interface to support this product. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: add sysfs for AEN pollingYang, Bo
update the sysfs parameter to tell application driver support AEN poll Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: Add poll mechanism to megaraid sas driverYang, Bo
Add Poll_wait mechanism to SAS-2 MegaRAID SAS Linux driver. Driver will wakeup poll after the driver get event from MegaRAID SAS FW. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] megaraid_sas: tape drive support fixYang, Bo
Add the Tape drive fix to the megaraid_sas driver: If the command is for the tape device, set the FW pthru timeout to the os layer timeout value. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Bump version 03.100.03.00Kashyap, Desai
Bump version to 03.100.03.00 Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: No link rate change, do not call update links nor unblock deviceKashyap, Desai
(1) target resets are sending link change rate events with no link rate change -> thus said the driver was modified so when there is no link rate change, we don't need to call mpt2sas_transport_update_links nor _scsih_ublock_io_device. (2) There were changes made in _scsih_sas_topology_change_event_debug to change the debug strings so they are more clear. Also the link rate change information was added to display the new and previous link rate. for the MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST event when the ExpStatus is set to zero, display "responding" instead of "unknown status". Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas : Add support for RAID Action System Shutdown Initiated at OS ↵Kashyap, Desai
shutdown (1) Added new function _scsih_ir_shutdown. This function will issue the MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED request via MPI2_FUNCTION_RAID_ACTION. The function will wait 10 seconds for reply message frame, then print out the ioc status and loginfo. This function is only called when there are raid volumes present. (2) Add shutdown callback in the struct pci_driver object scsih_driver. This will be called only when the system is shutting down. From this function, we will call _scsih_ir_shutdown mentioned above. (3) Add support in _scsih_remove to call _scsih_ir_shutdown. The function _scsih_remove will be called when the driver is unloaded (and system is still running). scsih internal command contex is added to send internal message frames from mpt2sas_scsih.c. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Freeze the sdev IO queue when firmware sends internal dev resetKashyap, Desai
When receiving the MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET event, the driver will set the tm_busy flag in the sdev private host data, When tm_busy flag is set, the driver will return SCSI_MLQUEUE_DEVICE_BUSY, effectly freezing the IO to the device. The tm_busy flag is cleared with the MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET event. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas : PPC (power pc) endian bug fix'sKashyap, Desai
(1) EEDP(End to End data protection) was not working. This was due to not setting EEDP BlockSize and Flags to little endian format in the message frame. (2) Some expander sysfs attributes were not getting set properly. The sas format was not getting set due to endian issues with sas_format field in the struct rep_manu_reply. Since sas_format was not set properly, the component_vendor_id, component_revision_id, and component_id were not set. (3) In _transport_smp_handler: we don't need to convert the smid from little endian to cpu prior to calling mpt2sas_base_free_smid, because its allready in cpu format. (4) Some loginfos and ioc status were not xonverted from little endian to cpu. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: mpt2sas_base_get_sense_buffer_dma should be returning little ↵Kashyap, Desai
endian cpu_to_le64 when calculating the physical dma address. This will properly handle endianess on big endian systems. The return value of this function was changed from dma_addr_t to __le64. Remove the typecasting of u32 when setting the SenseBufferLowAddress, since its already in __le32 format. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Return DID_TRANSPORT_DISRUPTED in nexus ↵Kashyap, Desai
loss,SCSI_MLQUEUE_DEVICE_BUSY if device is busy 1 Its observed that the OS was sending request to the driver after it had been put into blocking state, so the driver was modified to return SCSI_MLQUEUE_DEVICE_BUSY. 2. Driver will return DID_TRANSPORT_DISRUPTED when sdev is haivng nexus loss. This occurrs when sdev is blocked, between the MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING and MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING events. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Retrieve the ioc facts prior to putting the controller into ↵Kashyap, Desai
READY state The driver needs to retrieve the ioc facts prior to putting the controller into READY state. The current design is calling ioc facts after putting the controller into READY state, which means the driver is sending a diag reset instead of message unit reset becuase the capability information is not yet available. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Added new info messages for IR and Expander events.Kashyap, Desai
(1) for the MPI2_EVENT_IR_OPERATION_STATUS event, add support to print "background init" or "make data consistent" for debugging purposes. If the RAIDOperation is set to a value not defined, then don't print anything (2) for the MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE event, add support to print "expander reduced functionality" and "expander reduced functionality complete", which are new events. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Limit the max_depth to 32 for SATA devices which are not ↵Kashyap, Desai
part of volume Added sanity check in _scsih_change_queue_depth to limit the max_depth to 32 for SATA devices. This is only for physical devices not part of a volume. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Added support to set the TimeStamp when sending ioc_initKashyap, Desai
Added support to set the TimeStamp when sending ioc_init. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Add Extended Type for Diagnostic Buffer supportKashyap, Desai
Added tests for registry entries of EXBuffSize, EXImmed, and EXType to support the new Extended diag buffer type. Modified code where necessary to handle the new ExtendedType field in the F/W diagnostic Post and Release messages. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Added command line option diag_buffer_enable.Kashyap, Desai
Added command line option diag_buffer_enable. When the command line option is set, the driver will automatically post diag buffers at driver load time. The command line option diag_buffer_enable is bitwise, so it's possible to enable both and/or snapshot + trace buffers. For trace, the driver will allocate 1MB buffer, whereas for snapshot its 2MB. The purpose for this is so the enduser doesn't have to manually use an application to setup diag buffers for debugging firmware related issues. Here is some examples trace: # insmod mpt2sas.ko diag_buffer_enable=1 snapshot: # insmod mpt2sas.ko diag_buffer_enable=2 both trace and snapshot: # insmod mpt2sas.ko diag_buffer_enable=3 Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Fixed some of the commentKashyap, Desai
Fixed some of the comments sections for some of the function so "@ioc: pointer to scsi command object" was changed to "@ioc: per adapter object" Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Support for stopping driver when Firmware encountersKashyap, Desai
Added command line option and shost sysfs attribute called mpt2sas_fwfault_debug. When enduser writes a "1" to this parameter, this will enable support in the driver for debugging firmware timeout related issues. This handling was added in three areas (a) scsi error handling callback called task_abort, (b) IOCTL interface, and (c) other timeouts that result in diag resets, such as manufacturing config pages. When this support is enabled, the driver will provide dump_stack to console, halt controller firmware, and panic driver. The end user probably would want to setup serial console redirection so the dump stack can be seen. Here are the three methods for enable this support: (a) # insmod mpt2sas.ko mpt2sas_fwfault_debug=1 (b) # echo 1 > /sys/module/mpt2sas/parameters/mpt2sas_fwfault_debug (c) # echo 1 > /sys/class/scsi_host/host#/fwfault_debug (where # is the host number) Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Adding MPI Headers - revision LKashyap, Desai
The new headers contain the following changes: (1) Added IO Unit Page 7. (2) Added new device ids for SAS2208. (3) Added SAS IO Unit Page 5. (4) Added partial and slumber power management capable flags to SAS Device Page 0 Flags field. (5) Added PhyInfo defines for power condition. (6) Added Ethernet configuration pages. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: New device SAS2208 support is addedKashyap, Desai
Added device ids range for { 0x80 - 87 } , modified mpi/mpi2_cnfg.h containing MPI2_MFGPAGE_DEVID_SAS2208_X. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Add support in the driver to check for valid response infoKashyap, Desai
Add support in the driver to check for valid response info in the scsi state, then check to see if the response code is MPI2_SCSITASKMGMT_RSP_INVALID_FRAME; when this condition occurrs, the driver will return DID_SOFT_ERROR. A return code of DID_SOFT_ERROR will result in a retry at the scsi-mid layer level. An additional change added to obtain the response code from the 1st byte of the response info instead of last. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Expander remove fails when it is processing another expander ↵Kashyap, Desai
add. This handles the case where driver receives a expander removal event while it is in the middle of processing an expander add event. The existing implementation will stop processing futher device adds when a expander delete arrives on top of add expander add. Due to a sanity check in the driver, the devices there were not added, were never handshaked to firmware with the device removal handshake protocal. Since the driver didnt' do the handshake, the controller never provide further add events. To fix this issue, the sanity check was removed so the driver will always do the device removal handshake protocal. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29[SCSI] mpt2sas: Driver will use sas address instead of handle as a lookupKashyap, Desai
The device driver was not handling updating device handles in all cases across diag resets. To fix this issue, the driver is converted to using sas address instead of handle as a lookup reference to the parent expander or sas_host. Also, for both expanders and sas host, the phy handle will be one unique handle. In the sas host case, the phy handle can be different for every phy, so the change is to set the handle to the handle of the first phy; every phy will be one single sas address(phy 0) instead of a different sas address for every phy(previous implementation). So making one consistent sas address for all the direct attachedports to the sas host, will make it better user experience when using udev /dev/disk/by-path dev nodes Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: Eric Moore <Eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] zfcp: Flush SCSI registration work when adding unit [SCSI] zfcp: Fix timer initialization for ct and els requests [SCSI] zfcp: Warn about storage devices with broken PLOGI data [SCSI] zfcp: Handle WWPN mismatch in PLOGI payload [SCSI] zfcp: fix kfree handling in zfcp_init_device_setup [SCSI] fix memory leak in initialization
2009-10-29dpt_i2o: Fix up copy*userAlan Cox
Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-13[SCSI] fix memory leak in initializationJames Bottomley
The root cause of the problem is the fact that dev_set_name() now allocates storage instead of using the original array within the kobj. That means that the SCSI assumption that if you haven't made the containing object or any sub objects visible, you can just destroy it (and its component devices) lock stock and barrel becomes false. Fix this by doing the get of sdev_dev at parent time and thus do an extra put of it in scsi_destroy_sdev() (and all other destruction without add paths). Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (34 commits) [SCSI] qla2xxx: Fix NULL ptr deref bug in fail path during queue create [SCSI] st: fix possible memory use after free after MTSETBLK ioctl [SCSI] be2iscsi: Moving to pci_pools v3 [SCSI] libiscsi: iscsi_session_setup to allow for private space [SCSI] be2iscsi: add 10Gbps iSCSI - BladeEngine 2 driver [SCSI] zfcp: Fix hang when offlining device with offline chpid [SCSI] zfcp: Fix lockdep warning when offlining device with offline chpid [SCSI] zfcp: Fix oops during shutdown of offline device [SCSI] zfcp: Fix initial device and cfdc for delayed adapter allocation [SCSI] zfcp: correctly initialize unchained requests [SCSI] mpt2sas: Bump version 02.100.03.00 [SCSI] mpt2sas: Support dev remove when phy status is MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT [SCSI] mpt2sas: Timeout occurred within the HANDSHAKE logic while waiting on firmware to ACK. [SCSI] mpt2sas: Call init_completion on a per request basis. [SCSI] mpt2sas: Target Reset will be issued from Interrupt context. [SCSI] mpt2sas: Added SCSIIO, Internal and high priority memory pools to support multiple TM [SCSI] mpt2sas: Copyright change to 2009. [SCSI] mpt2sas: Added mpi2_history.txt for MPI2 headers. [SCSI] mpt2sas: Update driver to MPI2 REV K headers. [SCSI] bfa: Brocade BFA FC SCSI driver ...
2009-10-02[SCSI] qla2xxx: Fix NULL ptr deref bug in fail path during queue createAnirban Chakraborty
Current code attempts to clean up resources when queue create fails and there it invokes queue free call with a (NULL) pointer to the queue which could not be allocated in the first place. Fix it by returning directly without invoking the queue free call as no resources has been allocated at that point of time. Reported-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] st: fix possible memory use after free after MTSETBLK ioctlDavid Jeffery
A memory use after free bug can manifest if the MTSETBLK or SET_DENS_AND_BLK ioctl features are used to set the tape's blocksize from 0 to non-zero. After the driver sets the new block size, in this one case it calls normalize_buffer() to free the device's internal data buffers. However, the ioctl code assumes there is always a buffer and does not check or allocate a buffer if there isn't one. So any following ioctl calls can corrupt a part of memory by writing data to memory that the st driver had freed. This patch removes the normalize_buffer() call and the specialness of changing from a 0 to non-zero blocksize to fix the possible use of memory after it has been freed by the st driver. signed-off-by: David Jeffery <djeffery@redhat.com> Acked-by: Kai Makisara <kai.makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] be2iscsi: Moving to pci_pools v3Jayamohan Kallickal
This patch contains changes to use pci_pools for iscsi hdr instead of pci_alloc_consistent. Here we alloc and free to pool for every IO v3: - Remove cleanup loop in beiscsi_session_destroy - Fixup for allocation failure handling in beiscsi_alloc_pdu - Removed unused variable in beiscsi_session_destroy. [jejb: fix up pci_pool_alloc address sizing problem] Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] libiscsi: iscsi_session_setup to allow for private spaceJayamohan Kallickal
This patch contains changes that allow iscsi_session_setup to allocate private space for LLD's Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] be2iscsi: add 10Gbps iSCSI - BladeEngine 2 driverJayamohan Kallickal
[v2: fixed up virt_to_bus() issue spotted by sfr] Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] mpt2sas: Bump version 02.100.03.00Kashyap, Desai
Bump version to 02.100.03.00 Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] mpt2sas: Support dev remove when phy status is ↵Kashyap, Desai
MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT Add support to process device removal events when the phy status is set to MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] mpt2sas: Timeout occurred within the HANDSHAKE logic while waiting on ↵Kashyap, Desai
firmware to ACK. Following a diag_reset, a request to send an ioc_init is timing out. The timeout occurred within the HANDSHAKE logic while waiting on firmware to acknowledge that the driver had wrote to the doorbell register. This was root caused to a logic timeout in the firmware code. The proposed solution is for the driver to call the udelay instead of msleep API in function where its looping reading the interrupt status. In addition to this change, there were two additional cases where we deleted the clearing interrupt status outside handshake context. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] mpt2sas: Call init_completion on a per request basis.Kashyap, Desai
Now driver call init_completion on a per request basis. At some point the wait_for_completion_timeout is not waiting for the timeout, instead returning immediately, thus going into diag reset. This fix will address all request using the wait_for_completion_timeout API. The previous implimentation was only calling init_completion at driver load time. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] mpt2sas: Target Reset will be issued from Interrupt context.Kashyap, Desai
(1) Added three new functions to handle sending target resest and OP_REMOVE from interrupt time, they are _scsih_tm_tr_send, _scsih_tm_tr_complete, and _scsih_sas_control_complete. This code will create a link list of pending target resets if there is no more available request in the hipriority request queue. The list is stored in ioc->delayed_tr_list. (2) All callback handler return type is changed from void to u8. Now _base_interrupt will check for return type of callback handlers to take decision of message frame is already freed or not. In genral, Return 1 meaning mf should be freed from _base_interrupt 0 means the mf is freed from function. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] mpt2sas: Added SCSIIO, Internal and high priority memory pools to ↵Kashyap, Desai
support multiple TM 1) create a pool of high priority message frames in the region of memory between message frames and chains. The modifications are in _base_allocate_memory_pools. Also create a seperate pool of memory for internal commands located near the same region of memory. The pool of high priority message frames is restriced by the facts->HighPriorityCredit. 2) Create additional API for accessing request message frames. New function mpt2sas_base_get_smid_hpr is for highpriority request. New function mpt2sas_base_get_smid_scsiio for SCSI_IO, passing in the scsi command pointer. The mpt2sas_base_get_smid function is for requesting internal commands. 3) Added new function _base_get_cb_idx to obtain the callback index from one of the three pools of request message frames. 4) Removed wrapper functions _scsih_scsi_lookup_set and _scsih_scsi_lookup_getclear. These were removed because this handling was moved into mpt2sas_base_get_smid_scsiio and mpt2sas_base_free_smid. 5) The function mpt2sas_base_free_smid is modified so the request message frames are put back on one of the three pools of request message frames. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] mpt2sas: Copyright change to 2009.Kashyap, Desai
Update the copyright year to 2009 through out the code. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02[SCSI] mpt2sas: Added mpi2_history.txt for MPI2 headers.Kashyap, Desai
Added new file for MPI2 header version history. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>