> -----Original Message----- > From: Laurence Oberman [mailto:loberman@xxxxxxxxxx] > Sent: Monday, February 05, 2018 9:58 AM > To: Ming Lei <ming.lei@xxxxxxxxxx>; Jens Axboe <axboe@xxxxxxxxx>; linux- > block@xxxxxxxxxxxxxxx; Christoph Hellwig <hch@xxxxxxxxxxxxx>; Mike Snitzer > <snitzer@xxxxxxxxxx>; Don Brace <don.brace@xxxxxxxxxxxxx> > Cc: linux-scsi@xxxxxxxxxxxxxxx; Hannes Reinecke <hare@xxxxxxx>; Arun Easi > <arun.easi@xxxxxxxxxx>; Omar Sandoval <osandov@xxxxxx>; Martin K . > Petersen <martin.petersen@xxxxxxxxxx>; James Bottomley > <james.bottomley@xxxxxxxxxxxxxxxxxxxxx>; Christoph Hellwig <hch@xxxxxx>; > Don Brace <don.brace@xxxxxxxxxxxxx>; Kashyap Desai > <kashyap.desai@xxxxxxxxxxxx>; Peter Rivera <peter.rivera@xxxxxxxxxxxx>; > Paolo Bonzini <pbonzini@xxxxxxxxxx> > Subject: Re: [PATCH V2 8/8] scsi: hpsa: use blk_mq to solve irq affinity issue > > EXTERNAL EMAIL > > > On Mon, 2018-02-05 at 23:20 +0800, Ming Lei wrote: > > This patch uses .force_blk_mq to drive HPSA via SCSI_MQ, meantime > > maps > > each reply queue to blk_mq's hw queue, then .queuecommand can always > > choose the hw queue as the reply queue. And if no any online CPU is > > mapped to one hw queue, request can't be submitted to this hw queue > > at all, finally the irq affinity issue is solved. > > > > Cc: Hannes Reinecke <hare@xxxxxxx> > > Cc: Arun Easi <arun.easi@xxxxxxxxxx> > > Cc: Omar Sandoval <osandov@xxxxxx>, > > Cc: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>, > > Cc: James Bottomley <james.bottomley@xxxxxxxxxxxxxxxxxxxxx>, > > Cc: Christoph Hellwig <hch@xxxxxx>, > > Cc: Don Brace <don.brace@xxxxxxxxxxxxx> > > Cc: Kashyap Desai <kashyap.desai@xxxxxxxxxxxx> > > Cc: Peter Rivera <peter.rivera@xxxxxxxxxxxx> > > Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx> > > Cc: Mike Snitzer <snitzer@xxxxxxxxxx> > > Tested-by: Laurence Oberman <loberman@xxxxxxxxxx> > > Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx> > > --- > > drivers/scsi/hpsa.c | 51 ++++++++++++++++++++++++++++++++++--------- > This is a critical issue on the HPSA because Linus already has the > original commit that causes the system to fail to boot. > > All my testing was on DL380 G7 servers with: > > Hewlett-Packard Company Smart Array G6 controllers > Vendor: HP Model: P410i Rev: 6.64 > > Ming's patch fixes this so we need to try move this along. > > I have a DL380 G8 as well which is also likely exposed here and I added > Don Brace for FYI to this list. > > Thanks Ming Tested-by: Don Brace <don.brace@xxxxxxxxxxxxx> P441, P431, P830i, H240 Acked-by: Don Brace <don.brace@xxxxxxxxxxxxx>
