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path: root/drivers/scsi/aacraid
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2016-07-12aacraid: use kmemdupMuhammad Falak R Wani1-4/+3
Use kmemdup when some other buffer is immediately copied into allocated region. It replaces call to allocation followed by memcpy, by a single call to kmemdup. Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com> Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-05-22aacraid: do not activate events on non-SRC adaptersHannes Reinecke2-5/+11
Only SRC-based adapters support the AifReqEvent function, so there is no point in trying to activate it on older, non-SRC based adapters. Doing so lead to crashes on older adapters. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.com> Reviewed-by: Raghava Aditya Renukunta <RaghavaAaditya.Renukunta@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-29aacraid: Update driver versionRaghava Aditya Renukunta1-1/+1
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-29aacraid: Fix for KDUMP driver hangRaghava Aditya Renukunta2-0/+25
When KDUMP is triggered the driver first talks to the firmware in INTX mode, but the adapter firmware is still in MSIX mode. Therefore the first driver command hangs since the driver is waiting for an INTX response and firmware gives a MSIX response. If when the OS is installed on a RAID drive created by the adapter KDUMP will hang since the driver does not receive a response in sync mode. Fixed by: Change the firmware to INTX mode if it is in MSIX mode before sending the first sync command. Cc: stable@vger.kernel.org Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-29aacraid: Remove code to needlessly complete fibRaghava Aditya Renukunta1-3/+4
Currently driver completes double completed or spurious interrupted fibs. This is not necessary and causes the SCSI mid layer to issue aborts and resets, since completing a fib prematurely might trigger a race condition resulting in the driver not calling the scsi_done callback. Fixed by removing the call to fib complete. Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-29aacraid: Log firmware AIF messagesRaghava Aditya Renukunta4-1/+35
Firmware AIF messages about cache loss and data recovery are being missed by the driver since currently they are not captured but rather let go. This patch to capture those messages and log them for the user. Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-29aacraid: Fix for aac_command_thread hangRaghava Aditya Renukunta1-0/+4
Typically under error conditions, it is possible for aac_command_thread() to miss the wakeup from kthread_stop() and go back to sleep, causing it to hang aac_shutdown. In the observed scenario, the adapter is not functioning correctly and so aac_fib_send() never completes (or time-outs depending on how it was called). Shortly after aac_command_thread() starts it performs aac_fib_send(SendHostTime) which hangs. When aac_probe_one /aac_get_adapter_info send time outs, kthread_stop is called which breaks the command thread out of it's hang. The code will still go back to sleep in schedule_timeout() without checking kthread_should_stop() so it causes aac_probe_one to hang until the schedule_timeout() which is 30 minutes. Fixed by: Adding another kthread_should_stop() before schedule_timeout() Cc: stable@vger.kernel.org Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-29aacraid: Disable MSI mode for series 6, 7, 8 cardsRaghava Aditya Renukunta1-15/+2
As the firmware for series 6, 7, 8 cards does not support msi, remove it in the driver Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-29aacraid: Relinquish CPU during timeout waitRaghava Aditya Renukunta1-4/+4
aac_fib_send has a special function case for initial commands during driver initialization using wait < 0(pseudo sync mode). In this case, the command does not sleep but rather spins checking for timeout.This loop is calls cpu_relax() in an attempt to allow other processes/threads to use the CPU, but this function does not relinquish the CPU and so the command will hog the processor. This was observed in a KDUMP "crashkernel" and that prevented the "command thread" (which is responsible for completing the command from being timed out) from starting because it could not get the CPU. Fixed by replacing "cpu_relax()" call with "schedule()" Cc: stable@vger.kernel.org Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-29aacraid: Start adapter after updating number of MSIX vectorsRaghava Aditya Renukunta1-1/+1
The adapter has to be started after updating the number of MSIX Vectors Fixes: ecc479e00db8 (aacraid: Set correct MSIX count for EEH recovery) Cc: stable@vger.kernel.org Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-29aacraid: Fix incorrectly named MACRORaghava Aditya Renukunta2-2/+2
Suggested-by: Seymour, Shane M <shane.seymour@hpe.com> Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-29aacraid: Removed unnecessary checks for NULLRaghava Aditya Renukunta1-22/+0
Current driver checks for NULL return from aac_fib_alloc_tag, but it not possible for it to return NULL. Fixed by: Remove all the checks for NULL returns from aac_fib_alloc_tag Suggested-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-03-21aacraid: add missing curly bracesArnd Bergmann1-1/+2
gcc-6 warns about obviously wrong indentation for newly added code in aac_slave_configure(): drivers/scsi/aacraid/linit.c: In function 'aac_slave_configure': drivers/scsi/aacraid/linit.c:458:3: warning: statement is indented as if it were guarded by... [-Wmisleading-indentation] sdev->tagged_supported = 1; ^~~~ drivers/scsi/aacraid/linit.c:455:4: note: ...this 'else' clause, but it is not gcc is correct, and evidently this was meant to be within the curly braces that should have been there to start with. This patch adds them, which avoids the warning and makes it clear what was intended here. Nothing changes in behavior because in the 'if' block, the sdev->tagged_supported flag is known to be set already. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 6bf3b630d0a7 ("aacraid: SCSI blk tag support") Reviewed-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23aacraid: Update driver versionRaghava Aditya Renukunta1-1/+1
Updated diver version to 41052 Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23aacraid: Fix character device re-initializationRaghava Aditya Renukunta2-7/+21
During EEH PCI hotplug activity kernel unloads and loads the driver, causing character device to be unregistered(aac_remove_one).When the driver is loaded back using aac_probe_one the character device needs to be registered again for the AIF management tools to work. Fixed by adding code to register character device in aac_probe_one if it is unregistered in aac_remove_one. Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com> Reviewed-by: Shane Seymour <shane.seymour@hpe.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23aacraid: Fix AIF triggered IOP_RESETRaghava Aditya Renukunta3-4/+12
while driver removal is in progress or PCI shutdown is invoked, driver kills AIF aacraid thread, but IOCTL requests from the management tools re-start AIF thread leading to IOP_RESET. Fixed by setting adapter_shutdown flag when PCI shutdown is invoked. Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com> Reviewed-by: Shane Seymour <shane.seymour@hpe.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23aacraid: Created new mutex for ioctl pathRaghava Aditya Renukunta3-10/+12
aac_mutex was used to create protect the ioctl path for only the compat path, it would be make more sense to place mutex in aac_do_ioctl, which is the main ioctl function call that handles all ioctl commands. Created new mutex ioctl_mutex in struct aac_dev to protect switch case in aac_do_ioctl and removed aac_mutex from aac_cfg_ioctl and aac_compat_do_ioctl Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@pmcs.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23aacraid: Fundamental reset support for Series 7Raghava Aditya Renukunta1-0/+6
Series 7 does not support PCI hot reset used by EEH. Enabled fundamental reset only for Series 7 Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23aacraid: Set correct msix count for EEH recoveryRaghava Aditya Renukunta1-1/+11
During EEH recovery number of online CPU's might change thereby changing the number of MSIx vectors. Since each fib is allocated to a vector, changes in the number of vectors causes fib to be sent thru invalid vectors.In addition the correct number of MSIx vectors is not updated in the INIT struct sent to the controller, when it is reinitialized. Fixed by reassigning vectors to fibs based on the updated number of MSIx vectors and updating the INIT structure before sending to controller. Fixes: MSI-X vector calculation for suspend/resume Cc: stable@vger.kernel.org Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com> Reviewed-by: Shane Seymour <shane.seymour@hpe.com> Reviewed-by: Johannes Thumshirn <jthushirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23aacraid: Fix memory leak in aac_fib_map_freeRaghava Aditya Renukunta1-3/+6
aac_fib_map_free() calls pci_free_consistent() without checking that dev->hw_fib_va is not NULL and dev->max_fib_size is not zero.If they are indeed NULL/0, this will result in a hang as pci_free_consistent() will attempt to invalidate cache for the entire 64-bit address space (which would take a very long time). Fixed by adding a check to make sure that dev->hw_fib_va and dev->max_fib_size are not NULL and 0 respectively. Fixes: 9ad5204d6 - "[SCSI]aacraid: incorrect dma mapping mask during blinked recover or user initiated reset" Cc: stable@vger.kernel.org Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23aacraid: Added EEH supportRaghava Aditya Renukunta2-1/+140
Added support for PCI EEH (extended error handling). Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23aacraid: Fix RRQ overloadRaghava Aditya Renukunta3-23/+37
The driver utilizes an array of atomic variables to keep track of IO submissions to each vector. To submit an IO multiple threads iterate through the array to find a vector which has empty slots to send an IO. The reading and updating of the variable is not atomic, causing race conditions when a thread uses a full vector to submit an IO. Fixed by mapping each FIB to a vector, the submission path then uses said vector to submit IO thereby removing the possibly of a race condition.The vector assignment is started from 1 since vector 0 is reserved for the use of AIF management FIBS.If the number of MSIx vectors is 1 (MSI or INTx mode) then all the fibs are allocated to vector 0. Fixes: 495c0217 "aacraid: MSI-x support" Cc: stable@vger.kernel.org # v4.1 Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23aacraid: SCSI blk tag supportRaghava Aditya Renukunta5-20/+44
The method to allocate and free FIB's in the present code utilizes spinlocks. Multiple IO's have to wait on the spinlock to acquire or free fibs creating a performance bottleneck. An alternative solution would be to use block layer tags to keep track of the fibs allocated and freed. To this end aac_fib_alloc_tag was created to utilize the blk layer tags to plug into the Fib pool.These functions are used exclusively in the IO path. 8 fibs are reserved for the use of AIF management software and utilize the previous spinlock based implementations. Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@pmcs.com> Reviewed-by: Shane Seymour <shane.seymour@hpe.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-11-25aacraid: aac_release_resources() can be staticFengguang Wu1-1/+1
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-11-09aacraid: Update driver versionMahesh Rajashekhara1-1/+1
Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-09aacraid: Use pci_enable_msix_range()Mahesh Rajashekhara2-15/+7
As pci_enable_msix() deprecated, replaced with pci_enable_msix_range() Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-09aacraid: IOCTL fixMahesh Rajashekhara1-0/+5
Driver blocks ioctls once it received shutdown/suspend request during suspend/hybernation. This patch unblocks ioctls on resume path. Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-09aacraid: Reset irq affinity hintsMahesh Rajashekhara3-75/+88
Reset irq affinity hints before releasing IRQ. Removed duplicate code of IRQ acquire/release. Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-09aacraid: Tune response path if IsFastPath bit setMahesh Rajashekhara1-122/+137
If 'IsFastPath' bit is set, then response path assumes no error and skips error check. Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-09aacraid: Enable 64bit write to controller registerMahesh Rajashekhara3-2/+20
If writeq() not supported, then do atomic two 32bit write Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-09aacraid: Change interrupt mode to MSI for Series 6Mahesh Rajashekhara2-2/+2
This change always sets MSI interrupt mode for series-6 controller. Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-09aacraid: Add Power Management supportMahesh Rajashekhara6-78/+232
* .suspend() and .resume() routines implemented in the driver * aac_release_resources() initiates firmware shutdown * aac_acquire_resources re-initializes the host interface Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-09aacraid: Fix for LD name and UID not exposed to OSMahesh Rajashekhara1-2/+2
Driver sends the right size of the response buffer. Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-05-25aacraid: aac_src_intr_message() can be statickbuild test robot1-1/+1
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Acked-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: driver version changeMahesh Rajashekhara2-2/+2
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: AIF raw device remove supportMahesh Rajashekhara2-0/+36
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: performance improvement changesMahesh Rajashekhara7-58/+57
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: IOCTL fixMahesh Rajashekhara3-1/+7
After getting the platform shutdown command "VM_CloseAll" response from the firmware, driver was getting configuration IOCTL request from the upper layers and it sends down to firmware. This causes firmware assert issue. This patch fixes the firmware assert issue. During the shutdown, if driver gets commands from the upper layer, driver sends error code to the upper layers. Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: IOP RESET command handling changesMahesh Rajashekhara3-10/+31
This patch fixes the IOP_RESET issue. Sending IOP_RESET command need to wait for only 10 sec instead of 5 minutes in case of firmware does not response IOP_RESET command. Disable interrupt before setup interrupt routine to prevent spurious interrupts. Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: 240 simple volume supportMahesh Rajashekhara2-0/+8
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: vpd page code 0x83 supportMahesh Rajashekhara1-12/+153
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: MSI-x supportMahesh Rajashekhara6-107/+505
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: 4KB sector supportMahesh Rajashekhara2-51/+200
Also fix up a name truncation problem Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: IOCTL pass-through command fixMahesh Rajashekhara1-2/+8
The Linux aacriad driver fails to detect the case of SG list count=0 on IOCTL pass-through command and cause intermittent fault. The result is the Linux aacriad driver send down IOCTL pass-through command with one not initialized SG list to firmware when receiving SG list count =0 on pass-through command. Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: AIF support for SES device add/removeMahesh Rajashekhara2-2/+8
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2014-12-08Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linusJames Bottomley1-11/+7
Conflicts: drivers/scsi/scsi_debug.c Agreed and tested resolution to a merge problem between a fix in scsi_debug and a driver update Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-11-24scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16Hannes Reinecke2-3/+3
SPC-3 defines SERVICE ACTION IN(12) and SERVICE ACTION IN(16). So rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16 to be consistent with SPC and to allow for better distinction. Signed-off-by: Hannes Reinecke <hare@suse.de> Tested-by: Robert Elliott <elliott@hp.com> Reviewed-by: Robert Elliott <elliott@hp.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-11-24scsi: drop reason argument from ->change_queue_depthChristoph Hellwig1-11/+7
Drop the now unused reason argument from the ->change_queue_depth method. Also add a return value to scsi_adjust_queue_depth, and rename it to scsi_change_queue_depth now that it can be used as the default ->change_queue_depth implementation. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-12scsi: don't set tagging state from scsi_adjust_queue_depthChristoph Hellwig1-4/+4
Remove the tagged argument from scsi_adjust_queue_depth, and just let it handle the queue depth. For most drivers those two are fairly separate, given that most modern drivers don't care about the SCSI "tagged" status of a command at all, and many old drivers allow queuing of multiple untagged commands in the driver. Instead we start out with the ->simple_tags flag set before calling ->slave_configure, which is how all drivers actually looking at ->simple_tags except for one worke anyway. The one other case looks broken, but I've kept the behavior as-is for now. Except for that we only change ->simple_tags from the ->change_queue_type, and when rejecting a tag message in a single driver, so keeping this churn out of scsi_adjust_queue_depth is a clear win. Now that the usage of scsi_adjust_queue_depth is more obvious we can also remove all the trivial instances in ->slave_alloc or ->slave_configure that just set it to the cmd_per_lun default. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
2014-09-15scsi: add use_cmd_list flagKashyap.Desai@avagotech.com1-0/+1
Add a use_cmd_list flag in struct Scsi_Host to request keeping track of all outstanding commands per device. Default behaviour is not to keep track of cmd_list per sdev, as this may introduce lock contention. (overhead is more on multi-node NUMA.), and only enable it on the two drivers that need it. Signed-off-by: Kashyap Desai <kashyap.desai@avagotech.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Christoph Hellwig <hch@lst.de>
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