cxgb4vf: add call to Firmware to reset VF State.

[linux-2.6.git] / drivers / net / cxgb4vf / t4vf_hw.c

diff --git a/drivers/net/cxgb4vf/t4vf_hw.c b/drivers/net/cxgb4vf/t4vf_hw.c
index 1ef2528..e306c20 100644 (file)
--- a/drivers/net/cxgb4vf/t4vf_hw.c
+++ b/drivers/net/cxgb4vf/t4vf_hw.c
@@ -163,7 +163,7 @@ int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size,
        for (i = 0; i < 500; i += ms) {
                if (sleep_ok) {
                        ms = delay[delay_idx];
-                       if (delay_idx < ARRAY_SIZE(delay))
+                       if (delay_idx < ARRAY_SIZE(delay) - 1)
                                delay_idx++;
                        msleep(ms);
                } else
@@ -326,6 +326,25 @@ int __devinit t4vf_port_init(struct adapter *adapter, int pidx)
 }
 
 /**
+ *      t4vf_fw_reset - issue a reset to FW
+ *      @adapter: the adapter
+ *
+ *     Issues a reset command to FW.  For a Physical Function this would
+ *     result in the Firmware reseting all of its state.  For a Virtual
+ *     Function this just resets the state associated with the VF.
+ */
+int t4vf_fw_reset(struct adapter *adapter)
+{
+       struct fw_reset_cmd cmd;
+
+       memset(&cmd, 0, sizeof(cmd));
+       cmd.op_to_write = cpu_to_be32(FW_CMD_OP(FW_RESET_CMD) |
+                                     FW_CMD_WRITE);
+       cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
+       return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
+}
+
+/**
  *     t4vf_query_params - query FW or device parameters
  *     @adapter: the adapter
  *     @nparams: the number of parameters