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authorDan Williams <dan.j.williams@intel.com>2011-09-29 05:48:02 +0400
committerJames Bottomley <JBottomley@Parallels.com>2011-10-02 22:24:26 +0400
commitac013ed1cb7b1b36113548ce83881a1b5f757b58 (patch)
treeb31bf468e86610642a954a83040bd0bf97981a0b /drivers/scsi/isci/phy.c
parentcdd05f05b4adefccfa9fce7d0e10c50f38f8a4bd (diff)
downloadlinux-ac013ed1cb7b1b36113548ce83881a1b5f757b58.tar.xz
[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>
Diffstat (limited to 'drivers/scsi/isci/phy.c')
-rw-r--r--drivers/scsi/isci/phy.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c
index 430fc8ff014a..ab48bb11eab0 100644
--- a/drivers/scsi/isci/phy.c
+++ b/drivers/scsi/isci/phy.c
@@ -1313,6 +1313,17 @@ int isci_phy_control(struct asd_sas_phy *sas_phy,
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,