On 05/10/2017 09:07 PM, James Smart wrote: > Too many work items being processed in IRQ context take a lot > of CPU time and cause problems. > > With a recent change, we get out of the ISR after hitting entry_repost > work items on a queue. However, the actual values for entry repost are > still high. EQ is 128 and CQ is 128, this could translate into > processing 128 * 128 (16384) work items under IRQ context. > > Set entry_repost in the actual queue creation routine now. > Limit EQ repost to 8 and CQ repost to 64 to further limit the amount > of time spent in the IRQ. > > Fix fof IRQ routines as well. > > Signed-off-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx> > Signed-off-by: James Smart <james.smart@xxxxxxxxxxxx> > --- > drivers/scsi/lpfc/lpfc_init.c | 3 -- > drivers/scsi/lpfc/lpfc_sli.c | 64 +++++++++++-------------------------------- > drivers/scsi/lpfc/lpfc_sli4.h | 8 ++++-- > 3 files changed, 21 insertions(+), 54 deletions(-) > If this is a fix to a previous patch (Patch 6/15 ?), please merge it with that. Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)
