diff options
| author | Viswas G <Viswas.G@microchip.com> | 2021-04-15 13:33:52 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-04-16 05:29:00 +0300 |
| commit | 1f02beff224e6176c1a0aacced7fb5127b240996 (patch) | |
| tree | 6c5cb5116e01a1b64486860da57c0f070e658464 /drivers/scsi/pm8001/pm8001_init.c | |
| parent | b431472bc88b4a230c88049ed077fcccf4448980 (diff) | |
| download | linux-1f02beff224e6176c1a0aacced7fb5127b240996.tar.xz | |
scsi: pm80xx: Remove global lock from outbound queue processing
Introduce spin lock for outbound queue. With this, driver need not acquire
HBA global lock for outbound queue processing.
Link: https://lore.kernel.org/r/20210415103352.3580-9-Viswas.G@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com>
Signed-off-by: Ashokkumar N <Ashokkumar.N@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/pm8001/pm8001_init.c')
| -rw-r--r-- | drivers/scsi/pm8001/pm8001_init.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index 0f7b3fffb393..390c33df0357 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -267,7 +267,8 @@ static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha, { int i, count = 0, rc = 0; u32 ci_offset, ib_offset, ob_offset, pi_offset; - struct inbound_queue_table *circularQ; + struct inbound_queue_table *ibq; + struct outbound_queue_table *obq; spin_lock_init(&pm8001_ha->lock); spin_lock_init(&pm8001_ha->bitmap_lock); @@ -315,8 +316,8 @@ static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha, pm8001_ha->memoryMap.region[IOP].alignment = 32; for (i = 0; i < count; i++) { - circularQ = &pm8001_ha->inbnd_q_tbl[i]; - spin_lock_init(&circularQ->iq_lock); + ibq = &pm8001_ha->inbnd_q_tbl[i]; + spin_lock_init(&ibq->iq_lock); /* MPI Memory region 3 for consumer Index of inbound queues */ pm8001_ha->memoryMap.region[ci_offset+i].num_elements = 1; pm8001_ha->memoryMap.region[ci_offset+i].element_size = 4; @@ -345,6 +346,8 @@ static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha, } for (i = 0; i < count; i++) { + obq = &pm8001_ha->outbnd_q_tbl[i]; + spin_lock_init(&obq->oq_lock); /* MPI Memory region 4 for producer Index of outbound queues */ pm8001_ha->memoryMap.region[pi_offset+i].num_elements = 1; pm8001_ha->memoryMap.region[pi_offset+i].element_size = 4; |