While enabling high iops queues driver should look for HBA's
configured PCIe link speed instead of looking for HBA's max
capacity link speed.
i.e. Enable high iops queues only if Aero/Sea HBA's configured
PCIe link speed is set to 16GT/s speed.
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx>
---
drivers/scsi/mpt3sas/mpt3sas_base.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index d55f134..8a47e02 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -2979,7 +2979,7 @@ static void
_base_check_and_enable_high_iops_queues(struct MPT3SAS_ADAPTER *ioc,
int hba_msix_vector_count)
{
- enum pci_bus_speed speed = PCI_SPEED_UNKNOWN;
+ u16 lnksta, speed;
if (perf_mode == MPT_PERF_MODE_IOPS ||
perf_mode == MPT_PERF_MODE_LATENCY) {
@@ -2989,15 +2989,10 @@ _base_check_and_enable_high_iops_queues(struct MPT3SAS_ADAPTER *ioc,
if (perf_mode == MPT_PERF_MODE_DEFAULT) {
- speed = pcie_get_speed_cap(ioc->pdev);
- dev_info(&ioc->pdev->dev, "PCIe device speed is %s\n",
- speed == PCIE_SPEED_2_5GT ? "2.5GHz" :
- speed == PCIE_SPEED_5_0GT ? "5.0GHz" :
- speed == PCIE_SPEED_8_0GT ? "8.0GHz" :
- speed == PCIE_SPEED_16_0GT ? "16.0GHz" :
- "Unknown");
+ pcie_capability_read_word(ioc->pdev, PCI_EXP_LNKSTA, &lnksta);
+ speed = lnksta & PCI_EXP_LNKSTA_CLS;
- if (speed < PCIE_SPEED_16_0GT) {
+ if (speed < 0x4) {
ioc->high_iops_queues = 0;
return;
}
--
1.8.3.1
