Load balancing IO completions across all available MSI-X vectors should be
enabled for Invader and later generation controllers only.
This needs to be disabled for older controllers.
Add an adapter type check before setting msix_load_balance flag.
Fixes: 1d15d9098ad1 ("scsi: megaraid_sas: Load balance completions across all MSI-X")
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@xxxxxxxxxxxx>
---
drivers/scsi/megaraid/megaraid_sas_base.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 9321878..96b6510 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -5945,7 +5945,8 @@ static int megasas_init_fw(struct megasas_instance *instance)
instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ?
1 : 0;
- if (!instance->msix_combined) {
+ if (instance->adapter_type >= INVADER_SERIES &&
+ !instance->msix_combined) {
instance->msix_load_balance = true;
instance->smp_affinity_enable = false;
}
--
2.9.5
