diff options
| author | Keith Busch <keith.busch@intel.com> | 2018-03-27 18:39:06 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-03-28 06:25:36 +0300 |
| commit | f23f5bece686a76598335141a091934f7eb0998c (patch) | |
| tree | d523d0195bb2955637e5d607332029e7476b3e02 /include/linux/blk-mq-pci.h | |
| parent | 3148ffbdb9162baa28545809d675d3bf9339d6a1 (diff) | |
| download | linux-f23f5bece686a76598335141a091934f7eb0998c.tar.xz | |
blk-mq: Allow PCI vector offset for mapping queues
The PCI interrupt vectors intended to be associated with a queue may
not start at 0; a driver may allocate pre_vectors for special use. This
patch adds an offset parameter so blk-mq may find the intended affinity
mask and updates all drivers using this API accordingly.
Cc: Don Brace <don.brace@microsemi.com>
Cc: <qla2xxx-upstream@qlogic.com>
Cc: <linux-scsi@vger.kernel.org>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blk-mq-pci.h')
| -rw-r--r-- | include/linux/blk-mq-pci.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/blk-mq-pci.h b/include/linux/blk-mq-pci.h index 6338551e0fb9..9f4c17f0d2d8 100644 --- a/include/linux/blk-mq-pci.h +++ b/include/linux/blk-mq-pci.h @@ -5,6 +5,7 @@ struct blk_mq_tag_set; struct pci_dev; -int blk_mq_pci_map_queues(struct blk_mq_tag_set *set, struct pci_dev *pdev); +int blk_mq_pci_map_queues(struct blk_mq_tag_set *set, struct pci_dev *pdev, + int offset); #endif /* _LINUX_BLK_MQ_PCI_H */ |