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| author | Shreyas Deodhar <sdeodhar@marvell.com> | 2022-12-21 20:39:32 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-01-11 23:48:26 -0500 |
| commit | 1d201c81d4cc6840735bbcc99e6031503e5cf3b8 (patch) | |
| tree | 4a9075fef4c76657b9f7d902ad1042f47e3c18f3 /drivers/scsi/qla2xxx/qla_os.c | |
| parent | 2f5fab1b6c3a8efc93ba52c28539c45a8d0142ad (diff) | |
| download | linux-stable-1d201c81d4cc6840735bbcc99e6031503e5cf3b8.tar.gz linux-stable-1d201c81d4cc6840735bbcc99e6031503e5cf3b8.tar.bz2 linux-stable-1d201c81d4cc6840735bbcc99e6031503e5cf3b8.zip | |
scsi: qla2xxx: Select qpair depending on which CPU post_cmd() gets called
In current I/O path, Tx and Rx may not be processed on same CPU. This may
lead to thrashing and optimum performance may not be achieved.
Pick qpair such that Tx and Rx are processed on same CPU.
Signed-off-by: Shreyas Deodhar <sdeodhar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index d07a914559d3..545167627e48 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -472,6 +472,11 @@ static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req, "Unable to allocate memory for queue pair ptrs.\n"); goto fail_qpair_map; } + if (qla_mapq_alloc_qp_cpu_map(ha) != 0) { + kfree(ha->queue_pair_map); + ha->queue_pair_map = NULL; + goto fail_qpair_map; + } } /* @@ -546,6 +551,7 @@ static void qla2x00_free_queues(struct qla_hw_data *ha) ha->base_qpair = NULL; } + qla_mapq_free_qp_cpu_map(ha); spin_lock_irqsave(&ha->hardware_lock, flags); for (cnt = 0; cnt < ha->max_req_queues; cnt++) { if (!test_bit(cnt, ha->req_qid_map)) |