diff options
| author |   Tyrel Datwyler <tyreld@linux.ibm.com> | 2023-09-21 17:54:27 -0500 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2023-09-21 22:14:20 -0400 |
| commit | b27bce7291e688738c7ed47f300c877c11cef2dc (patch) | |
| tree | f519b89ca68e5002331ded650a42c4bb381e3141 | |
| parent | scsi: ibmvfc: Implement channel queue depth and event buffer accounting (diff) | |
| download | wireguard-linux-b27bce7291e688738c7ed47f300c877c11cef2dc.tar.xz wireguard-linux-b27bce7291e688738c7ed47f300c877c11cef2dc.zip | |
scsi: ibmvfc: Limit max hw queues by num_online_cpus()
An LPAR could potentially be configured with a small logical cpu count that
is less then the default hardware queue max. Ensure that we don't allocate
more hw queues than available cpus.
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Link: https://lore.kernel.org/r/20230921225435.3537728-4-tyreld@linux.ibm.com
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvfc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 6d66a416c44e..2bfeeb9ace01 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -6261,7 +6261,8 @@ static int ibmvfc_probe(struct vio_dev *vdev, const struct vio_device_id *id) struct Scsi_Host *shost; struct device *dev = &vdev->dev; int rc = -ENOMEM; - unsigned int max_scsi_queues = IBMVFC_MAX_SCSI_QUEUES; + unsigned int online_cpus = num_online_cpus(); + unsigned int max_scsi_queues = min((unsigned int)IBMVFC_MAX_SCSI_QUEUES, online_cpus); ENTER; shost = scsi_host_alloc(&driver_template, sizeof(*vhost)); |