> -----Original Message----- > From: linux-scsi-owner@xxxxxxxxxxxxxxx [mailto:linux-scsi- > owner@xxxxxxxxxxxxxxx] On Behalf Of Keith Busch > Sent: Tuesday, March 27, 2018 10:39 AM > To: Linux NVMe <linux-nvme@xxxxxxxxxxxxxxxxxxx>; Linux Block <linux- > block@xxxxxxxxxxxxxxx> > Cc: Christoph Hellwig <hch@xxxxxx>; Sagi Grimberg <sagi@xxxxxxxxxxx>; > Jianchao Wang <jianchao.w.wang@xxxxxxxxxx>; Ming Lei > <ming.lei@xxxxxxxxxx>; Jens Axboe <axboe@xxxxxxxxx>; Keith Busch > <keith.busch@xxxxxxxxx>; Don Brace <don.brace@xxxxxxxxxxxxx>; qla2xxx- > upstream@xxxxxxxxxx; linux-scsi@xxxxxxxxxxxxxxx > Subject: [PATCH 1/3] blk-mq: Allow PCI vector offset for mapping queues > > EXTERNAL EMAIL > > > 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@xxxxxxxxxxxxx> > Cc: <qla2xxx-upstream@xxxxxxxxxx> > Cc: <linux-scsi@xxxxxxxxxxxxxxx> > Signed-off-by: Keith Busch <keith.busch@xxxxxxxxx> > --- > v1 -> v2: > > Update blk-mq API directly instead of chaining a default parameter to > a new API, and update all drivers accordingly. > > block/blk-mq-pci.c | 6 ++++-- > drivers/nvme/host/pci.c | 2 +- > drivers/scsi/qla2xxx/qla_os.c | 2 +- > drivers/scsi/smartpqi/smartpqi_init.c | 2 +- > include/linux/blk-mq-pci.h | 3 ++- > 5 files changed, 9 insertions(+), 6 deletions(-) > > diff --git a/drivers/scsi/smartpqi/smartpqi_init.c > b/drivers/scsi/smartpqi/smartpqi_init.c > index b2880c7709e6..10c94011c8a8 100644 > --- a/drivers/scsi/smartpqi/smartpqi_init.c > +++ b/drivers/scsi/smartpqi/smartpqi_init.c > @@ -5348,7 +5348,7 @@ static int pqi_map_queues(struct Scsi_Host *shost) > { > struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); > > - return blk_mq_pci_map_queues(&shost->tag_set, ctrl_info->pci_dev); > + return blk_mq_pci_map_queues(&shost->tag_set, ctrl_info->pci_dev, 0); > } > Acked-by: Don Brace <don.brace@xxxxxxxxxxxxx>
