- 09 1月, 2015 1 次提交
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This patch addresses below issues: 1) Few endianness bug fixes. 2) Break the iteration after (MAX_LOGICAL_DRIVES_EXT - 1)), instead of MAX_LOGICAL_DRIVES_EXT. 3) Optimization in MFI INIT frame before firing. 4) MFI IO frame should be 256bytes aligned. Code is optimized to reduce the size of frame for fusion adapters and make the MFI frame size calculation a bit transparent and readable. Cc: <stable@vger.kernel.org> Signed-off-by: NKashyap Desai <kashyap.desai@avagotech.com> Signed-off-by: NSumit Saxena <sumit.saxena@avagotech.com> Signed-off-by: NChaitra Basappa <chaitra.basappa@avagotech.com> Reviewed-by: NMartin K. Petersen <martin.petersen@oracle.com> Signed-off-by: NChristoph Hellwig <hch@lst.de>
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- 24 11月, 2014 2 次提交
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In OCR (Online Controller Reset) path, driver sets adapter state to MEGASAS_HBA_OPERATIONAL before getting new RAID map. There will be a small window where IO will come from OS with old RAID map. This patch will update adapter state to MEGASAS_HBA_OPERATIONAL, only after driver has new RAID map to avoid any IOs getting build using old RAID map. Signed-off-by: NSumit Saxena <sumit.saxena@avagotech.com> Signed-off-by: NKashyap Desai <kashyap.desai@avagotech.com> Reviewed-by: NTomas Henzl <thenzl@redhat.com> Signed-off-by: NChristoph Hellwig <hch@lst.de>
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Update MAINTAINERS list and copyright information for megaraid_sas driver. Signed-off-by: NSumit Saxena <sumit.saxena@avagotech.com> Reviewed-by: NTomas Henzl <thenzl@redhat.com> Signed-off-by: NChristoph Hellwig <hch@lst.de>
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- 17 9月, 2014 4 次提交
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Resending the patch. Addressed the review comments from Tomas Henzl. Added comment for to-do work. Problem statement: MFI link list in megaraid_sas driver is used from mfi-mpt pass-through commands. This list can be corrupted due to many possible race conditions in driver and eventually we may see kernel panic. One example - MFI frame is freed from calling process as driver send command via polling method and interrupt for that command comes after driver free mfi frame (actually even after some other context reuse the mfi frame). When driver receive MPT frame in ISR, driver will be using the index of MFI and access that MFI frame and finally in-used MFI frame’s list will be corrupted. High level description of new solution - Free MFI and MPT command from same context. Free both the command either from process (from where mfi-mpt pass-through was called) or from ISR context. Do not split freeing of MFI and MPT, because it creates the race condition which will do MFI/MPT list corruption. Renamed the cmd_pool_lock which is used in instance as well as fusion with below name. mfi_pool_lock and mpt_pool_lock to add more code readability. Signed-off-by: NSumit Saxena <sumit.saxena@avagotech.com> Signed-off-by: NKashyap Desai <kashyap.desai@avagotech.com> Reviewed-by: NTomas Henzl <thenzl@redhat.com> Signed-off-by: NChristoph Hellwig <hch@lst.de>
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Resending the patch. Addressed the review comments from Tomas Henzl. Current driver does fast path read load balancing between arm and mirror disk for two Drive Raid-1 configuration only. Now, Driver support fast path read load balancing for all (any number of disk) Raid-1 configuration. Signed-off-by: NSumit Saxena <sumit.saxena@avagotech.com> Signed-off-by: NKashyap Desai <kashyap.desai@avagotech.com> Reviewed-by: NTomas Henzl <thenzl@redhat.com> Signed-off-by: NChristoph Hellwig <hch@lst.de>
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Resending the patch. Addressed the review comments from Tomas Henzl. reserved1 field(part of union) of Raid map struct was not required so it is removed. Current MegaRAID firmware and hence the driver only supported 64VDs. E.g: If the user wants to create more than 64VD on a controller, it is not possible on current firmware/driver. New feature and requirement to support upto 256VD, firmware/driver/apps need changes. In addition to that there must be a backward compatibility of the new driver with the older firmware and vice versa. RAID map is the interface between Driver and FW to fetch all required fields(attributes) for each Virtual Drives. In the earlier design driver was using the FW copy of RAID map where as in the new design the Driver will keep the RAID map copy of its own; on which it will operate for any raid map access in fast path. Local driver raid map copy will provide ease of access through out the code and provide generic interface for future FW raid map changes. For the backward compatibility driver will notify FW that it supports 256VD to the FW in driver capability field. Based on the controller properly returned by the FW, the Driver will know whether it supports 256VD or not and will copy the RAID map accordingly. At any given time, driver will always have old or new Raid map. So with this changes, driver can also work in host lock less mode. Please see next patch which enable host lock less mode for megaraid_sas driver. Signed-off-by: NSumit Saxena <sumit.saxena@avagotech.com> Signed-off-by: NKashyap Desai <kashyap.desai@avagotech.com> Reviewed-by: NTomas Henzl <thenzl@redhat.com> Signed-off-by: NChristoph Hellwig <hch@lst.de>
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Resending the patch. Addressed the review comments from Tomas Henzl. Current driver updates reply post host index to let firmware know that replies are processed, while returning from ISR function, only if there is no oustanding replies in reply queue. Driver will free the request frame immediately from ISR but reply post host index is not yet updated. It means freed request can be used by submission path and there may be a tight loop in request/reply path. In such condition, firmware may crash when it tries to post reply and there is no free reply post descriptor. Eventually two things needs to be change to avoid this issue. Increase reply queue depth (double than request queue) to accommodate worst case scenario. Update reply post host index to firmware once it reach to some pre-defined threshold value. This change will make sure that firmware will always have some buffer of reply descriptor and will never find empty reply descriptor in completion path. Signed-off-by: NSumit Saxena <sumit.saxena@avagotech.com> Signed-off-by: NKashyap Desai <kashyap.desai@avagotech.com> Reviewed-by: NTomas Henzl <thenzl@redhat.com> Signed-off-by: NChristoph Hellwig <hch@lst.de>
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- 16 3月, 2014 1 次提交
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由 adam radford 提交于
The following patch for megaraid_sas adds Dell PowerEdge VRTS SR-IOV VF support (Device ID 0x002f). This patch has some > 80 column lines that need to be left in place for code readability purposes. Signed-off-by: NAdam Radford <aradford@gmail.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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- 11 9月, 2013 1 次提交
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由 Sumit.Saxena@lsi.com 提交于
This patch will add big endian architecture support to megaraid_sas driver. The support added is for LSI MegaRAID all generation controllers- (3Gb/s, 6Gb/s and 12 Gb/s controllers). We have done basic sanity test @ppc64 arch and @x86_64. Additional testing/observations are welcome. [jejb: fix up rejections] Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com> Signed-off-by: NSumit Saxena <sumit.saxena@lsi.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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- 07 9月, 2013 1 次提交
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由 adam radford 提交于
Signed-off-by: NAdam Radford <aradford@gmail.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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- 20 8月, 2013 1 次提交
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由 Matthias Schid 提交于
Fixed several typos in comments in megaraid_mbox.c, megaraid_mm.c and megaraid_sas_fusion.h. Signed-off-by: NMatthias Schid <aircrach115@gmail.com> Signed-off-by: NStefan Huber <steffhip@gmail.com> Signed-off-by: NSimon Puels <simon.puels@gmail.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 25 6月, 2013 2 次提交
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由 Sumit.Saxena@lsi.com 提交于
MegaRAID older Firmware does not support uneven span configuration for PRL11. E.g User wants to create 34 Driver PRL11 config, it was not possible using old firmware, since it was not supported configuration in old firmware Old Firmware expect even number of Drives in each span and same number of physical drives at each span. Considering above design, 17 Drives at Span-0 and 17 drives at span-1 was not possible. Now, using this new feature Firmware and Driver both required changes. New Firmware can allow user to create 16 Drives at span-0 and 18 Drives at span-1. This will allow user to create 34 Drives Uneven span PRL11. RAID map is interface between Driver and FW to fetch all required fields(attributes) for each Virtual Drives. Since legacy RAID map consider Even Span design, there was no place to keep Uneven span information in existing Raid map. Because of this limitation, for Uneven span VD, driver can not use RAID map. This patch address the changes required in Driver to support Uneven span PRL11 support. 1. Driver will find if Firmware has UnevenSpanSupport or not by reading Controller Info. 2. If Firmware has UnvenSpan PRL11 support, then Driver will inform about its capability of handling UnevenSpan PRL11 to the firmware. 3. Driver will update its copy of span info on each time Raid map update is called. 4. Follow different IO path if it is Uneven Span. (For Uneven Span, Driver uses Span Set info to find relavent fields for that particular Virtual Disk) More verbose prints will be available by setting "SPAN_DEBUG" to 1 at compilation time. Signed-off-by: NSumit Saxena <sumit.saxena@lsi.com> Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sumit.Saxena@lsi.com 提交于
This Driver will use more than 8 MSI-x support provided by Invader/Fury max upto 128 MSI-x. [jejb: fix checkpatch warning] Signed-off-by: NSumit Saxena <sumit.saxena@lsi.com> Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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- 22 2月, 2013 1 次提交
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由 adam radford 提交于
The following patch for megaraid_sas will allow Fastpath T10PI/DIF frame builds to work with 4k sector size. Signed-off-by: NAdam Radford <aradford@gmail.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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- 09 10月, 2012 1 次提交
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由 adam radford 提交于
Signed-off-by: NAdam Radford <aradford@gmail.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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- 17 10月, 2011 2 次提交
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由 adam radford 提交于
Signed-off-by: NAdam Radford <aradford@gmail.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 adam radford 提交于
Signed-off-by: NAdam Radford <aradford@gmail.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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- 23 12月, 2010 1 次提交
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由 adam radford 提交于
This patch adds MegaRAID 9265/9285 (Device id 0x5b) specific code Signed-off-by: NAdam Radford <aradford@gmail.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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