bnxt_en: Add hwrm_send_message_silent().

This is used to send NVM_FIND_DIR_ENTRY messages which can return error
if the entry is not found.  This is normal and the error message will
cause unnecessary alarm, so silence it.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -2709,6 +2709,17 @@ int hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
 	return rc;
 }
 
+int hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len,
+			     int timeout)
+{
+	int rc;
+
+	mutex_lock(&bp->hwrm_cmd_lock);
+	rc = bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true);
+	mutex_unlock(&bp->hwrm_cmd_lock);
+	return rc;
+}
+
 static int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp)
 {
 	struct hwrm_func_drv_rgtr_input req = {0};

drivers/net/ethernet/broadcom/bnxt/bnxt.h

@@ -1095,6 +1095,7 @@ void bnxt_set_ring_params(struct bnxt *);
 void bnxt_hwrm_cmd_hdr_init(struct bnxt *, void *, u16, u16, u16);
 int _hwrm_send_message(struct bnxt *, void *, u32, int);
 int hwrm_send_message(struct bnxt *, void *, u32, int);
+int hwrm_send_message_silent(struct bnxt *, void *, u32, int);
 int bnxt_hwrm_set_coal(struct bnxt *);
 int bnxt_hwrm_func_qcaps(struct bnxt *);
 int bnxt_hwrm_set_pause(struct bnxt *);

drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c

@@ -1141,7 +1141,7 @@ static int bnxt_find_nvram_item(struct net_device *dev, u16 type, u16 ordinal,
 	req.dir_ordinal = cpu_to_le16(ordinal);
 	req.dir_ext = cpu_to_le16(ext);
 	req.opt_ordinal = NVM_FIND_DIR_ENTRY_REQ_OPT_ORDINAL_EQ;
-	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+	rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
 	if (rc == 0) {
 		if (index)
 			*index = le16_to_cpu(output->dir_idx);