Searched hist:a4f40484 (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/drivers/nvme/host/ |
| H A D | pci.c | a4f40484 Thu Oct 17 21:53:14 CDT 2019 Kevin Hao <haokexin@gmail.com> nvme-pci: Set the prp2 correctly when using more than 4k page
In the current code, the nvme is using a fixed 4k PRP entry size,
but if the kernel use a page size which is more than 4k, we should
consider the situation that the bv_offset may be larger than the
dev->ctrl.page_size. Otherwise we may miss setting the prp2 and then
cause the command can't be executed correctly.
Fixes: dff824b2aadb ("nvme-pci: optimize mapping of small single segment requests")
Cc: stable@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
a4f40484 Thu Oct 17 21:53:14 CDT 2019 Kevin Hao <haokexin@gmail.com> nvme-pci: Set the prp2 correctly when using more than 4k page
In the current code, the nvme is using a fixed 4k PRP entry size,
but if the kernel use a page size which is more than 4k, we should
consider the situation that the bv_offset may be larger than the
dev->ctrl.page_size. Otherwise we may miss setting the prp2 and then
cause the command can't be executed correctly.
Fixes: dff824b2aadb ("nvme-pci: optimize mapping of small single segment requests")
Cc: stable@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
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