[SCSI] isci: export phy events via ->lldd_control_phy()
Allow the sas-transport-class to update events for local phys via a new
PHY_FUNC_GET_EVENTS command to ->lldd_control_phy(). Fixup drivers that
are not prepared for new enum phy_func values, and unify
->lldd_control_phy() error codes.
These are the SAS defined phy events that are reported in a
smp-report-phy-error-log command:
* /sys/class/sas_phy/<phyX>/invalid_dword_count
* /sys/class/sas_phy/<phyX>/running_disparity_error_count
* /sys/class/sas_phy/<phyX>/loss_of_dword_sync_count
* /sys/class/sas_phy/<phyX>/phy_reset_problem_count
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c
index 430fc8f..ab48bb1 100644
--- a/drivers/scsi/isci/phy.c
+++ b/drivers/scsi/isci/phy.c
@@ -1313,6 +1313,17 @@
ret = isci_port_perform_hard_reset(ihost, iport, iphy);
break;
+ case PHY_FUNC_GET_EVENTS: {
+ struct scu_link_layer_registers __iomem *r;
+ struct sas_phy *phy = sas_phy->phy;
+
+ r = iphy->link_layer_registers;
+ phy->running_disparity_error_count = readl(&r->running_disparity_error_count);
+ phy->loss_of_dword_sync_count = readl(&r->loss_of_sync_error_count);
+ phy->phy_reset_problem_count = readl(&r->phy_reset_problem_count);
+ phy->invalid_dword_count = readl(&r->invalid_dword_counter);
+ break;
+ }
default:
dev_dbg(&ihost->pdev->dev,