be2net: Avoid flashing BE3 UFI on BE3-R chip.

Avoid flashing BE3 UFI on BE3-R chip by verifying asic_revision
number of the chip.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/emulex/benet/be.h

@@ -435,6 +435,7 @@ struct be_adapter {
 	u8 wol_cap;
 	bool wol;
 	u32 uc_macs;		/* Count of secondary UC MAC programmed */
+	u16 asic_rev;
 	u32 msg_enable;
 	int be_get_temp_freq;
 	u16 max_mcast_mac;

drivers/net/ethernet/emulex/benet/be_cmds.c

@@ -1834,7 +1834,7 @@ err:
 
 /* Uses mbox */
 int be_cmd_query_fw_cfg(struct be_adapter *adapter, u32 *port_num,
-		u32 *mode, u32 *caps)
+			u32 *mode, u32 *caps, u16 *asic_rev)
 {
 	struct be_mcc_wrb *wrb;
 	struct be_cmd_req_query_fw_cfg *req;
@@ -1855,6 +1855,7 @@ int be_cmd_query_fw_cfg(struct be_adapter *adapter, u32 *port_num,
 		*port_num = le32_to_cpu(resp->phys_port);
 		*mode = le32_to_cpu(resp->function_mode);
 		*caps = le32_to_cpu(resp->function_caps);
+		*asic_rev = le32_to_cpu(resp->asic_revision) & 0xFF;
 	}
 
 	mutex_unlock(&adapter->mbox_lock);

drivers/net/ethernet/emulex/benet/be_cmds.h

@@ -1848,8 +1848,8 @@ extern int be_cmd_set_flow_control(struct be_adapter *adapter,
 			u32 tx_fc, u32 rx_fc);
 extern int be_cmd_get_flow_control(struct be_adapter *adapter,
 			u32 *tx_fc, u32 *rx_fc);
-extern int be_cmd_query_fw_cfg(struct be_adapter *adapter,
-			u32 *port_num, u32 *function_mode, u32 *function_caps);
+extern int be_cmd_query_fw_cfg(struct be_adapter *adapter, u32 *port_num,
+			u32 *function_mode, u32 *function_caps, u16 *asic_rev);
 extern int be_cmd_reset_function(struct be_adapter *adapter);
 extern int be_cmd_rss_config(struct be_adapter *adapter, u8 *rsstable,
 			u16 table_size);

drivers/net/ethernet/emulex/benet/be_hw.h

@@ -499,7 +499,8 @@ struct flash_file_hdr_g3 {
 	u32 antidote;
 	u32 num_imgs;
 	u8 build[24];
-	u8 rsvd[32];
+	u8 asic_type_rev;
+	u8 rsvd[31];
 };
 
 struct flash_section_hdr {

drivers/net/ethernet/emulex/benet/be_main.c

@@ -2959,7 +2959,8 @@ static int be_get_config(struct be_adapter *adapter)
 
 	status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
 				     &adapter->function_mode,
-				     &adapter->function_caps);
+				     &adapter->function_caps,
+				     &adapter->asic_rev);
 	if (status)
 		goto err;
 
@@ -3220,7 +3221,7 @@ static int be_flash(struct be_adapter *adapter, const u8 *img,
 	return 0;
 }
 
-/* For BE2 and BE3 */
+/* For BE2, BE3 and BE3-R */
 static int be_flash_BEx(struct be_adapter *adapter,
 			 const struct firmware *fw,
 			 struct be_dma_mem *flash_cmd,
@@ -3533,18 +3534,22 @@ lancer_fw_exit:
 
 #define UFI_TYPE2		2
 #define UFI_TYPE3		3
+#define UFI_TYPE3R		10
 #define UFI_TYPE4		4
 static int be_get_ufi_type(struct be_adapter *adapter,
-			   struct flash_file_hdr_g2 *fhdr)
+			   struct flash_file_hdr_g3 *fhdr)
 {
 	if (fhdr == NULL)
 		goto be_get_ufi_exit;
 
 	if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
 		return UFI_TYPE4;
-	else if (BE3_chip(adapter) && fhdr->build[0] == '3')
-		return UFI_TYPE3;
-	else if (BE2_chip(adapter) && fhdr->build[0] == '2')
+	else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
+		if (fhdr->asic_type_rev == 0x10)
+			return UFI_TYPE3R;
+		else
+			return UFI_TYPE3;
+	} else if (BE2_chip(adapter) && fhdr->build[0] == '2')
 		return UFI_TYPE2;
 
 be_get_ufi_exit:
@@ -3555,7 +3560,6 @@ be_get_ufi_exit:
 
 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
 {
-	struct flash_file_hdr_g2 *fhdr;
 	struct flash_file_hdr_g3 *fhdr3;
 	struct image_hdr *img_hdr_ptr = NULL;
 	struct be_dma_mem flash_cmd;
@@ -3571,23 +3575,37 @@ static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
 	}
 
 	p = fw->data;
-	fhdr = (struct flash_file_hdr_g2 *)p;
+	fhdr3 = (struct flash_file_hdr_g3 *)p;
 
-	ufi_type = be_get_ufi_type(adapter, fhdr);
+	ufi_type = be_get_ufi_type(adapter, fhdr3);
 
-	fhdr3 = (struct flash_file_hdr_g3 *)fw->data;
 	num_imgs = le32_to_cpu(fhdr3->num_imgs);
 	for (i = 0; i < num_imgs; i++) {
 		img_hdr_ptr = (struct image_hdr *)(fw->data +
 				(sizeof(struct flash_file_hdr_g3) +
 				 i * sizeof(struct image_hdr)));
 		if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
-			if (ufi_type == UFI_TYPE4)
+			switch (ufi_type) {
+			case UFI_TYPE4:
 				status = be_flash_skyhawk(adapter, fw,
 							&flash_cmd, num_imgs);
-			else if (ufi_type == UFI_TYPE3)
+				break;
+			case UFI_TYPE3R:
 				status = be_flash_BEx(adapter, fw, &flash_cmd,
 						      num_imgs);
+				break;
+			case UFI_TYPE3:
+				/* Do not flash this ufi on BE3-R cards */
+				if (adapter->asic_rev < 0x10)
+					status = be_flash_BEx(adapter, fw,
+							      &flash_cmd,
+							      num_imgs);
+				else {
+					status = -1;
+					dev_err(&adapter->pdev->dev,
+						"Can't load BE3 UFI on BE3R\n");
+				}
+			}
 		}
 	}