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| author | Michael Hernandez <michael.hernandez@cavium.com> | 2017-05-18 10:47:47 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-05-22 15:06:05 -0500 |
| commit | 6f9a22bc5775d231ab8fbe2c2f3c88e45e3e7c28 (patch) | |
| tree | 1c783fb19be43cd07b3a1f7a32af66e64dba2958 /lib/iommu-common.c | |
| parent | 2ea659a9ef488125eb46da6eb571de5eae5c43f6 (diff) | |
| download | blackbird-obmc-linux-6f9a22bc5775d231ab8fbe2c2f3c88e45e3e7c28.tar.gz blackbird-obmc-linux-6f9a22bc5775d231ab8fbe2c2f3c88e45e3e7c28.zip | |
PCI/MSI: Ignore affinity if pre/post vector count is more than min_vecs
min_vecs is the minimum amount of vectors needed to operate in MSI-X mode
which may just include the vectors that don't need affinity.
Disabling affinity settings causes the qla2xxx driver scsi_add_host() to fail
when blk_mq is enabled as the blk_mq_pci_map_queues() expects affinity masks
on each vector.
Fixes: dfef358bd1be ("PCI/MSI: Don't apply affinity if there aren't enough vectors left")
Signed-off-by: Michael Hernandez <michael.hernandez@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org # v4.10+
Diffstat (limited to 'lib/iommu-common.c')
0 files changed, 0 insertions, 0 deletions
