scsi: lpfc: Fix poor use of hardware queues if fewer irq vectors

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While fixing the resources per socket, realized the driver was not using
hardware queues (up to 1 per cpu) if there were fewer interrupt
vectors. The driver was only using the hardware queue assigned to the cpu
with the vector.

Rework the affinity map check to use the additional hardware queue elements
that had been allocated.  If the cpu count exceeds the hardware queue count
- share, but choose what is shared with by: hyperthread peer, core peer,
socket peer, or finally similar cpu in a different socket.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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James Smart 2019-05-21 17:49:06 -07:00 • committed by Martin K. Petersen

parent d9954a2d18

commit 657add4e5e

4 changed files with 255 additions and 113 deletions

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3

drivers/scsi/lpfc/lpfc_attr.c

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321

drivers/scsi/lpfc/lpfc_init.c

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42

drivers/scsi/lpfc/lpfc_sli.c

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2

drivers/scsi/lpfc/lpfc_sli4.h

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