svn commit: r253890 - head/sys/dev/cxgbe

[Navdeep Parhar]

Author: np
Date: Fri Aug  2 18:05:42 2013
New Revision: 253890
URL: http://svnweb.freebsd.org/changeset/base/253890

Log:
  Display temperature sensor data.  Shows -1 if sensor not
  available on the card.
  
  # sysctl dev.t4nex.0.temperature
  # sysctl dev.t5nex.0.temperature

Modified:
  head/sys/dev/cxgbe/t4_main.c

Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c        Fri Aug  2 17:44:19 2013        
(r253889)
+++ head/sys/dev/cxgbe/t4_main.c        Fri Aug  2 18:05:42 2013        
(r253890)
@@ -379,6 +379,7 @@ static int sysctl_holdoff_pktc_idx(SYSCT
 static int sysctl_qsize_rxq(SYSCTL_HANDLER_ARGS);
 static int sysctl_qsize_txq(SYSCTL_HANDLER_ARGS);
 static int sysctl_handle_t4_reg64(SYSCTL_HANDLER_ARGS);
+static int sysctl_temperature(SYSCTL_HANDLER_ARGS);
 #ifdef SBUF_DRAIN
 static int sysctl_cctrl(SYSCTL_HANDLER_ARGS);
 static int sysctl_cim_ibq_obq(SYSCTL_HANDLER_ARGS);
@@ -4223,6 +4224,10 @@ t4_sysctls(struct adapter *sc)
        SYSCTL_ADD_INT(ctx, children, OID_AUTO, "nfilters", CTLFLAG_RD,
            NULL, sc->tids.nftids, "number of filters");
 
+       SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "temperature", CTLTYPE_INT |
+           CTLFLAG_RD, sc, 0, sysctl_temperature, "A",
+           "chip temperature (in Celsius)");
+
        t4_sge_sysctls(sc, ctx, children);
 
 #ifdef SBUF_DRAIN
@@ -4865,6 +4870,31 @@ sysctl_handle_t4_reg64(SYSCTL_HANDLER_AR
        return (sysctl_handle_64(oidp, &val, 0, req));
 }
 
+static int
+sysctl_temperature(SYSCTL_HANDLER_ARGS)
+{
+       struct adapter *sc = arg1;
+       int rc, t;
+       uint32_t param, val;
+
+       rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4temp");
+       if (rc)
+               return (rc);
+       param = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+           V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_DIAG) |
+           V_FW_PARAMS_PARAM_Y(FW_PARAM_DEV_DIAG_TMP);
+       rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
+       end_synchronized_op(sc, 0);
+       if (rc)
+               return (rc);
+
+       /* unknown is returned as 0 but we display -1 in that case */
+       t = val == 0 ? -1 : val;
+
+       rc = sysctl_handle_int(oidp, &t, 0, req);
+       return (rc);
+}
+
 #ifdef SBUF_DRAIN
 static int
 sysctl_cctrl(SYSCTL_HANDLER_ARGS)
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