diff options
Diffstat (limited to 'drivers/scsi/mpt3sas/mpt3sas_base.c')
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_base.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 34ff896a140d..fa785062e97b 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -82,6 +82,10 @@ static int msix_disable = -1; module_param(msix_disable, int, 0); MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)"); +static int max_msix_vectors = 8; +module_param(max_msix_vectors, int, 0); +MODULE_PARM_DESC(max_msix_vectors, + " max msix vectors - (default=8)"); static int mpt3sas_fwfault_debug; MODULE_PARM_DESC(mpt3sas_fwfault_debug, @@ -1721,6 +1725,16 @@ _base_enable_msix(struct MPT3SAS_ADAPTER *ioc) ioc->reply_queue_count = min_t(int, ioc->cpu_count, ioc->msix_vector_count); + printk(MPT3SAS_FMT "MSI-X vectors supported: %d, no of cores" + ": %d, max_msix_vectors: %d\n", ioc->name, ioc->msix_vector_count, + ioc->cpu_count, max_msix_vectors); + + if (max_msix_vectors > 0) { + ioc->reply_queue_count = min_t(int, max_msix_vectors, + ioc->reply_queue_count); + ioc->msix_vector_count = ioc->reply_queue_count; + } + entries = kcalloc(ioc->reply_queue_count, sizeof(struct msix_entry), GFP_KERNEL); if (!entries) { |