scsi: lpfc: Fix poor use of hardware queues if fewer irq vectors
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>
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index 69c6dba..3aeca38 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -452,6 +452,7 @@ struct lpfc_hba_eq_hdl {
uint32_t idx;
char handler_name[LPFC_SLI4_HANDLER_NAME_SZ];
struct lpfc_hba *phba;
+ struct lpfc_queue *eq;
};
/*BB Credit recovery value*/
@@ -552,6 +553,7 @@ struct lpfc_vector_map_info {
uint16_t flag;
#define LPFC_CPU_MAP_HYPER 0x1
#define LPFC_CPU_MAP_UNASSIGN 0x2
+#define LPFC_CPU_FIRST_IRQ 0x4
};
#define LPFC_VECTOR_MAP_EMPTY 0xffff