IB/ipath: Log "active" time and some errors to EEPROM

We currently track various errors, now we enhance that capability by
logging some of them to EEPROM.  We also now log a cumulative "active"
time defined by traffic though the InfiniPath HCA beyond the normal SM
traffic.

Signed-off-by: Michael Albaugh <michael.albaugh@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index 8482ea366fb1..85f408de7bf7 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -440,6 +440,7 @@ static void ipath_ht_handle_hwerrors(struct ipath_devdata *dd, char *msg,
         u32 bits, ctrl;
         int isfatal = 0;
         char bitsmsg[64];
+        int log_idx;
 
         hwerrs = ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus);
 
@@ -468,6 +469,11 @@ static void ipath_ht_handle_hwerrors(struct ipath_devdata *dd, char *msg,
 
         hwerrs &= dd->ipath_hwerrmask;
 
+        /* We log some errors to EEPROM, check if we have any of those. */
+        for (log_idx = 0; log_idx < IPATH_EEP_LOG_CNT; ++log_idx)
+                if (hwerrs & dd->ipath_eep_st_masks[log_idx].hwerrs_to_log)
+                        ipath_inc_eeprom_err(dd, log_idx, 1);
+
         /*
          * make sure we get this much out, unless told to be quiet,
          * it's a parity error we may recover from,
@@ -1171,6 +1177,22 @@ static void ipath_init_ht_variables(struct ipath_devdata *dd)
 
         dd->ipath_i_rcvavail_mask = INFINIPATH_I_RCVAVAIL_MASK;
         dd->ipath_i_rcvurg_mask = INFINIPATH_I_RCVURG_MASK;
+
+        /*
+         * EEPROM error log 0 is TXE Parity errors. 1 is RXE Parity.
+         * 2 is Some Misc, 3 is reserved for future.
+         */
+        dd->ipath_eep_st_masks[0].hwerrs_to_log =
+                INFINIPATH_HWE_TXEMEMPARITYERR_MASK <<
+                INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT;
+
+        dd->ipath_eep_st_masks[1].hwerrs_to_log =
+                INFINIPATH_HWE_RXEMEMPARITYERR_MASK <<
+                INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT;
+
+        dd->ipath_eep_st_masks[2].errs_to_log =
+                INFINIPATH_E_INVALIDADDR | INFINIPATH_E_RESET;
+
 }
 
 /**