diff options
| author |   Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | 2018-10-16 23:37:46 -0700 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2018-11-06 20:33:56 -0500 |
| commit | e29c322133472628c6de85efb99ccd3b3df5571e (patch) | |
| tree | 82fc1895d4703d44cb39900c390049fc869d2106 /drivers/scsi/megaraid/megaraid_sas_base.c | |
| parent | scsi: megaraid_sas: Fix module parameter description (diff) | |
| download | linux-dev-e29c322133472628c6de85efb99ccd3b3df5571e.tar.xz linux-dev-e29c322133472628c6de85efb99ccd3b3df5571e.zip | |
scsi: megaraid_sas: Fix combined reply queue mode detection
For Invader series, if FW supports more than 8 MSI-x vectors, driver needs
to enable combined reply queue mode. For Ventura series, driver enables
combined reply queue mode in case of more than 16 MSI-x vectors.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_base.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index bbabd6f08bd6..4687e86790a2 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -5415,12 +5415,29 @@ static int megasas_init_fw(struct megasas_instance *instance) instance->msix_vectors = (scratch_pad_2 & MR_MAX_REPLY_QUEUES_OFFSET) + 1; fw_msix_count = instance->msix_vectors; - } else { /* Invader series supports more than 8 MSI-x vectors*/ + } else { instance->msix_vectors = ((scratch_pad_2 & MR_MAX_REPLY_QUEUES_EXT_OFFSET) >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; - if (instance->msix_vectors > 16) - instance->msix_combined = true; + + /* + * For Invader series, > 8 MSI-x vectors + * supported by FW/HW implies combined + * reply queue mode is enabled. + * For Ventura series, > 16 MSI-x vectors + * supported by FW/HW implies combined + * reply queue mode is enabled. + */ + switch (instance->adapter_type) { + case INVADER_SERIES: + if (instance->msix_vectors > 8) + instance->msix_combined = true; + break; + case VENTURA_SERIES: + if (instance->msix_vectors > 16) + instance->msix_combined = true; + break; + } if (rdpq_enable) instance->is_rdpq = (scratch_pad_2 & MR_RDPQ_MODE_OFFSET) ? |