- 25 Oct, 2017 30 commits
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Shivasharan S authored
The latest MegaRAID Firmware (for Invader series) has support for 64bit DMA for both streaming and consistent DMA buffers. All Ventura series controller FW always support 64 bit consistent DMA. Also, on a few architectures 32bit DMA is not supported. Current driver always prefers 32bit for consistent DMA and 64bit for streaming DMA. This behavior was unintentional and carried forwarded from legacy controller FW. Need to enhance the driver to support 64bit consistent DMA buffers based on the firmware capability. Below is the DMA setting strategy in driver with this patch. For Ventura series, always try to set 64bit DMA mask. If it fails fall back to 32bit DMA mask. For Invader series and earlier generation controllers, first try to set to 32bit consistent DMA mask irrespective of FW capability. This is needed to ensure firmware downgrades do not break. If 32bit DMA setting fails, check FW capability and try seting to 64bit DMA mask. There are certain restrictions in the hardware for having all sense buffers and all reply descriptors to be in the same 4GB memory region. This limitation is h/w dependent and can not be changed in firmware. This limitation needs to be taken care in driver while allocating the buffers. There was a discussion regarding this - find details at below link. https://www.spinics.net/lists/linux-scsi/msg108251.htmlSigned-off-by:
Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by:
Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Shivasharan S authored
Driver load fails if memory allocation for request frame pool fails due to the higher queue_depth requirement. The driver now allows dynamically reducing queue_depth if memory allocations fail rather than failing load. With this, there is no need to limit queue_depth to 1K. Signed-off-by:
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Shivasharan S authored
In certain cases, the host memory is limited and with FW supporting higher queue depths there are increasing chances of IO request frame allocation failures that we are seeing. In case of request frame allocation failures, retry allocation with reduced queue depth (in steps of 64) to continue to configure the controller with a reduced performance rather than failing load. Signed-off-by:
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Shivasharan S authored
cmd->frame->dcmd.opcode will be valid only for MFI_CMD_DCMD IOCTL frames. Currently driver check for cmd->frame->dcmd.opcode without checking cmd type. Ensure we check dcmd opcode only for MFI_CMD_DCMD commands. Separate handling of MFI_CMD_SMP/STP commands from MFI_CMD_DCMD in completion path. Signed-off-by:
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Shivasharan S authored
Older firmware version unconditionally pulls 4k frame for IOC INIT MFA frame. But driver allocates 1k or 4k max_chain_frame_sz based on FW capability. During boot time, this results in DMA read errors. Workaround fix in driver by allocating separate ioc_init frame of 4k size to support older firmware. Signed-off-by:
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Shivasharan S authored
Driver needs to send current host time to firmware during init. Signed-off-by:
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Shivasharan S authored
scsi: megaraid_sas: Move controller memory allocations and DMA mask settings from probe to megasas_init_fw Signed-off-by:
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Shivasharan S authored
scsi: megaraid_sas: Move initialization of instance parameters inside newly created function megasas_init_ctrl_params Code refactoring, no functional change. Create new function to initialize all the controller parameters during load time. Signed-off-by:
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Shivasharan S authored
Re-use the pre-allocated ctrl_info DMA buffer. Signed-off-by:
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Shivasharan S authored
Pre-allocate few of the frequently used DMA buffers during load time. Signed-off-by:
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Shivasharan S authored
Code refactoring - create separate functions to allocate and free controller DMA buffers Signed-off-by:
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Shivasharan S authored
No functional change. Code refactoring to improve readability. Move the code to allocate and free controller memory into separate functions. Signed-off-by:
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Shivasharan S authored
fusion_context structure is very large around 180kB and most of the size is contributed by log_to_span array. Move log_to_span out of fusion context and have separate allocation for log_to_span. And use kmalloc to allocate fusion_context. Currently kmemleak reports 1000s of false positives for fusion->cmd_list[]. kmemleak does not track page allocation for fusion_context. This change will also fix the false positives reported by kmemleak. Ref: https://marc.info/?l=linux-scsi&m=150545293900917Reported-by:
Shu Wang <shuwang@redhat.com> Signed-off-by:
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Shivasharan S authored
No functional change. Signed-off-by:
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Shivasharan S authored
Signed-off-by:
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Shivasharan S authored
Increase code readability. No functional change. Signed-off-by:
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Shivasharan S authored
Add support for PCI VID/DID 0x1000/0x0015 based MegaRAID controllers. Since the DID 0x0015 conflicts with DELL PERC5 controllers, add vendor ID based check specific for DELL PERC5. Signed-off-by:
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Shivasharan S authored
No functional change. Refactor adapter_type to set for all generation controllers, not just for fusion controllers. Signed-off-by:
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Don Brace authored
Reviewed-by:
Gerry Morong <gerry.morong@microsemi.com> Reviewed-by:
Scott Benesh <scott.benesh@microsemi.com> Signed-off-by:
Don Brace <don.brace@microsemi.com> Signed-off-by:
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Don Brace authored
Add support for enclosure logical identifier Reviewed-by:
Scott Teel <scott.teel@microsemi.com> Reviewed-by:
Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by:
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Don Brace authored
Suggested-by:
Martin Wilck <mwilck@suse.com> Reviewed-by:
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Don Brace authored
Reviewed-by:
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Don Brace authored
Preserve external device queue depth during a scan operation. Reviewed-by:
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Don Brace authored
Correct re-enabling ioaccel after: 1) RAID transformations and 2) multi-path fail-overs. Reviewed-by:
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Don Brace authored
There are times when the DEFAULT_TIMEOUT (30 seconds) is not enough. Reviewed-by:
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Bader Ali Saleh authored
Correct a corner case where newly created volumes are not detected automatically on an external RAID controller that has no configured volumes during initial device discovery. The fix is to set the discovery_polling flag when an external RAID controller is detected. This causes a device rescan every 20-30 seconds, so that newly created volumes will be detected automatically. Reviewed-by:
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Don Brace authored
Tell hpsa controller to generate a checkpoint for rare lockup conditions. Reviewed-by:
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Scott Teel authored
clean up stale information. Reviewed-by:
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Martin Wilck authored
I am resubmitting this patch on behalf of Martin Wilck with his permission. The original patch can be found here: https://www.spinics.net/lists/linux-scsi/msg102083.html This patch did not help until Hannes's commit 9441284fbc39 ("scsi-fixup-kernel-warning-during-rmmod") was applied to the kernel. -------------------------------------- Original patch description from Martin: -------------------------------------- When the hpsa module is unloaded using rmmod, dangling symlinks remain under /sys/class/sas_phy. Fix this by calling sas_phy_delete() rather than sas_phy_free (which, according to comments, should not be called for PHYs that have been set up successfully, anyway). Tested-by:
Martin Wilck <mwilck@suse.de> Signed-off-by:
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Martin Wilck authored
This patch cleans up a lot of warnings when unloading the driver. A current example of the stack trace starts with: [ 142.570715] sysfs group 'power' not found for kobject 'port-5:0' There can be hundreds of these messages during a driver unload. I am resubmitting this patch on behalf of Martin Wilck with his permission. His original patch can be found here: https://www.spinics.net/lists/linux-scsi/msg102085.html This patch did not help until Hannes's commit 9441284fbc39 ("scsi-fixup-kernel-warning-during-rmmod") was applied to the kernel. --------------------------- Original patch description: --------------------------- Unloading the hpsa driver causes warnings [ 1063.793652] WARNING: CPU: 1 PID: 4850 at ../fs/sysfs/group.c:237 device_del+0x54/0x240() [ 1063.793659] sysfs group ffffffff81cf21a0 not found for kobject 'port-2:0' with two different stacks: 1) [ 1063.793774] [<ffffffff81448af4>] device_del+0x54/0x240 [ 1063.793780] [<ffffffff8145178a>] transport_remove_classdev+0x4a/0x60 [ 1063.793784] [<ffffffff81451216>] attribute_container_device_trigger+0xa6/0xb0 [ 1063.793802] [<ffffffffa0105d46>] sas_port_delete+0x126/0x160 [scsi_transport_sas] [ 1063.793819] [<ffffffffa036ebcc>] hpsa_free_sas_port+0x3c/0x70 [hpsa] 2) [ 1063.797103] [<ffffffff81448af4>] device_del+0x54/0x240 [ 1063.797118] [<ffffffffa0105d4e>] sas_port_delete+0x12e/0x160 [scsi_transport_sas] [ 1063.797134] [<ffffffffa036ebcc>] hpsa_free_sas_port+0x3c/0x70 [hpsa] This is caused by the fact that host device hostX is deleted before the SAS transport devices hostX/port-a:b. This patch fixes this by reverting the order of device deletions. Tested-by:
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- 23 Oct, 2017 2 commits
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Don Brace authored
Correct spelling error. Signed-off-by:
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Martin K. Petersen authored
Ever since it became possible to compile the SCSI core code as a module, the documentation describing the module parameters has been incorrect. Update the documentation to add a "scsi_mod." prefix to the relevant options. Reported-by:
Laurence Oberman <loberman@redhat.com> Signed-off-by:
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- 19 Oct, 2017 8 commits
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Viswas G authored
Corrected the value defined for LINKRATE_60 (6 Gig). Signed-off-by:
Raj Dinesh <Raj.Dinesh@microsemi.com> Signed-off-by:
Viswas G <viswas.g@microsemi.com> Acked-by:
Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by:
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Viswas G authored
when there's an error in 'ncq mode' the host has to read the ncq error log (10h) to clear the error state. however, the ccb that is setup for doing this doesn't setup the ccb so that the previous state is cleared. if the ccb was previously used for an IO n_elems is set and pm8001_ccb_task_free() treats this as the signal to go free a scatter-gather list (that's already been freed). Signed-off-by:
Deepak Ukey <deepak.ukey@microsemi.com> Signed-off-by:
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Viswas G authored
Modified SATA abort handling with following steps: 1) Set device state as recovery. 2) Send phy reset. 3) Wait for reset completion. 4) After successful reset, abort all IO's to the device. 5) After aborting all IO's to device, set device state as operational. Signed-off-by:
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Viswas G authored
Added port reset timer value as 2000ms for PM8006 sata controller. Signed-off-by:
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Viswas G authored
Signed-off-by:
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Viswas G authored
tag is taken from the tag pool instead of using the hardcoded tag value(1). Signed-off-by:
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Viswas G authored
Different SAS addresses are assigned for each set of phys. Signed-off-by:
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Viswas G authored
Added support to read ILA version and inactive firmware version from MPI configuration table and export through sysfs. Signed-off-by:
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