diff options
| author | James Smart <jsmart2021@gmail.com> | 2019-05-21 17:49:05 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-06-18 19:46:22 -0400 |
| commit | d9954a2d18c3405bbbe3f15390a9747f66df9f9a (patch) | |
| tree | b79843298eb9f93e7551e388ca0eede37037daa9 /drivers/scsi/lpfc/lpfc_sli4.h | |
| parent | b8e6f13617db126c8898908e8601f5e4e3b393cf (diff) | |
scsi: lpfc: Fix oops when driver is loaded with 1 interrupt vector
The driver was coded expecting enough hardware queues and interrupt vectors
such that at least there was one per socket. In the case where there were
fewer than sockets, cpus were left unassigned thus null pointers.
Rework the affinity mappings. Map settings for the cpu's that are in the
irq cpu mask. For each cpu not in the mask, map to another cpu that does
have a mask. Choice of the "other" cpu will attempt to map to the same cpu
but differing hyperthread, or cpu within in same core, or cpu within same
socket, or finally cpu in the base 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>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli4.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli4.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index 8b28a55c73bb..69c6dba77dce 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -549,7 +549,9 @@ struct lpfc_vector_map_info { uint16_t irq; uint16_t eq; uint16_t hdwq; - uint16_t hyper; + uint16_t flag; +#define LPFC_CPU_MAP_HYPER 0x1 +#define LPFC_CPU_MAP_UNASSIGN 0x2 }; #define LPFC_VECTOR_MAP_EMPTY 0xffff |