diff options
| author | James Smart <jsmart2021@gmail.com> | 2019-01-28 22:14:31 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-02-06 06:29:49 +0300 |
| commit | 6a828b0f6192b4930894925d1c1d0dc1f1d99e6e (patch) | |
| tree | 30837f3b1f484f4b6357b173b173e3e3b8672464 /drivers/scsi/lpfc/lpfc_crtn.h | |
| parent | b3295c2a75333a4d6f0f945c7c148b1c0a453a8f (diff) | |
| download | linux-6a828b0f6192b4930894925d1c1d0dc1f1d99e6e.tar.xz | |
scsi: lpfc: Support non-uniform allocation of MSIX vectors to hardware queues
So far MSIX vector allocation assumed it would be 1:1 with hardware
queues. However, there are several reasons why fewer MSIX vectors may be
allocated than hardware queues such as the platform being out of vectors or
adapter limits being less than cpu count.
This patch reworks the MSIX/EQ relationships with the per-cpu hardware
queues so they can function independently. MSIX vectors will be equitably
split been cpu sockets/cores and then the per-cpu hardware queues will be
mapped to the vectors most efficient for them.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_crtn.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_crtn.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index 726cd6a7c452..982401c31c12 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -440,7 +440,6 @@ extern spinlock_t _dump_buf_lock; extern int _dump_buf_done; extern spinlock_t pgcnt_lock; extern unsigned int pgcnt; -extern unsigned int lpfc_fcp_look_ahead; /* Interface exported by fabric iocb scheduler */ void lpfc_fabric_abort_nport(struct lpfc_nodelist *); |