> -----Original Message----- > From: Laurence Oberman [mailto:lober...@redhat.com] > Sent: Monday, February 05, 2018 9:58 AM > To: Ming Lei <ming....@redhat.com>; Jens Axboe <ax...@kernel.dk>; linux- > bl...@vger.kernel.org; Christoph Hellwig <h...@infradead.org>; Mike Snitzer > <snit...@redhat.com>; Don Brace <don.br...@microsemi.com> > Cc: linux-s...@vger.kernel.org; Hannes Reinecke <h...@suse.de>; Arun Easi > <arun.e...@cavium.com>; Omar Sandoval <osan...@fb.com>; Martin K . > Petersen <martin.peter...@oracle.com>; James Bottomley > <james.bottom...@hansenpartnership.com>; Christoph Hellwig <h...@lst.de>; > Don Brace <don.br...@microsemi.com>; Kashyap Desai > <kashyap.de...@broadcom.com>; Peter Rivera <peter.riv...@broadcom.com>; > Paolo Bonzini <pbonz...@redhat.com> > 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 <h...@suse.de> > > Cc: Arun Easi <arun.e...@cavium.com> > > Cc: Omar Sandoval <osan...@fb.com>, > > Cc: "Martin K. Petersen" <martin.peter...@oracle.com>, > > Cc: James Bottomley <james.bottom...@hansenpartnership.com>, > > Cc: Christoph Hellwig <h...@lst.de>, > > Cc: Don Brace <don.br...@microsemi.com> > > Cc: Kashyap Desai <kashyap.de...@broadcom.com> > > Cc: Peter Rivera <peter.riv...@broadcom.com> > > Cc: Paolo Bonzini <pbonz...@redhat.com> > > Cc: Mike Snitzer <snit...@redhat.com> > > Tested-by: Laurence Oberman <lober...@redhat.com> > > Signed-off-by: Ming Lei <ming....@redhat.com> > > --- > > 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.br...@microsemi.com> P441, P431, P830i, H240 Acked-by: Don Brace <don.br...@microsemi.com>
