Merge branch 'bnxt_en-zeropad-fw-and-reset'

Michael Chan says:

====================
bnxt_en: Zero pad fw messages and add fw reset.

2 patches related to firmware for net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -2614,6 +2614,9 @@ int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
 	/* Write request msg to hwrm channel */
 	__iowrite32_copy(bp->bar0, data, msg_len / 4);
 
+	for (i = msg_len; i < HWRM_MAX_REQ_LEN; i += 4)
+		writel(0, bp->bar0 + i);
+
 	/* currently supports only one outstanding message */
 	if (intr_process)
 		bp->hwrm_intr_seq_id = le32_to_cpu(req->target_id_seq_id) &

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

@@ -837,6 +837,45 @@ static int bnxt_flash_nvram(struct net_device *dev,
 	return rc;
 }
 
+static int bnxt_firmware_reset(struct net_device *dev,
+			       u16 dir_type)
+{
+	struct bnxt *bp = netdev_priv(dev);
+	struct hwrm_fw_reset_input req = {0};
+
+	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FW_RESET, -1, -1);
+
+	/* TODO: Support ASAP ChiMP self-reset (e.g. upon PF driver unload) */
+	/* TODO: Address self-reset of APE/KONG/BONO/TANG or ungraceful reset */
+	/*       (e.g. when firmware isn't already running) */
+	switch (dir_type) {
+	case BNX_DIR_TYPE_CHIMP_PATCH:
+	case BNX_DIR_TYPE_BOOTCODE:
+	case BNX_DIR_TYPE_BOOTCODE_2:
+		req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_BOOT;
+		/* Self-reset ChiMP upon next PCIe reset: */
+		req.selfrst_status = FW_RESET_REQ_SELFRST_STATUS_SELFRSTPCIERST;
+		break;
+	case BNX_DIR_TYPE_APE_FW:
+	case BNX_DIR_TYPE_APE_PATCH:
+		req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_MGMT;
+		break;
+	case BNX_DIR_TYPE_KONG_FW:
+	case BNX_DIR_TYPE_KONG_PATCH:
+		req.embedded_proc_type =
+			FW_RESET_REQ_EMBEDDED_PROC_TYPE_NETCTRL;
+		break;
+	case BNX_DIR_TYPE_BONO_FW:
+	case BNX_DIR_TYPE_BONO_PATCH:
+		req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_ROCE;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+}
+
 static int bnxt_flash_firmware(struct net_device *dev,
 			       u16 dir_type,
 			       const u8 *fw_data,
@@ -894,10 +933,9 @@ static int bnxt_flash_firmware(struct net_device *dev,
 	/* TODO: Validate digital signature (RSA-encrypted SHA-256 hash) here */
 	rc = bnxt_flash_nvram(dev, dir_type, BNX_DIR_ORDINAL_FIRST,
 			      0, 0, fw_data, fw_size);
-	if (rc == 0) {	/* Firmware update successful */
-		/* TODO: Notify processor it needs to reset itself
-		 */
-	}
+	if (rc == 0)	/* Firmware update successful */
+		rc = bnxt_firmware_reset(dev, dir_type);
+
 	return rc;
 }