be2net: FW download for Lancer

Added implementation of FW download feature for Lancer.

Signed-off-by: Shripad Nunjundarao <shripad.nunjundarao@emulex.com>
Signed-off-by: Sevin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 110 insertions, 19 deletions

diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index 93be84ce9bad..7322a511e936 100644
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -2712,7 +2712,6 @@ static int be_flash_data(struct be_adapter *adapter,
 					"cmd to write to flash rom failed.\n");
 				return -1;
 			}
-			yield();
 		}
 	}
 	return 0;
@@ -2730,32 +2729,98 @@ static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
 		return 0;
 }
 
-int be_load_fw(struct be_adapter *adapter, u8 *func)
+static int lancer_fw_download(struct be_adapter *adapter,
+				const struct firmware *fw)
 {
-	char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
-	const struct firmware *fw;
-	struct flash_file_hdr_g2 *fhdr;
-	struct flash_file_hdr_g3 *fhdr3;
-	struct image_hdr *img_hdr_ptr = NULL;
+#define LANCER_FW_DOWNLOAD_CHUNK      (32 * 1024)
+#define LANCER_FW_DOWNLOAD_LOCATION   "/prg"
 	struct be_dma_mem flash_cmd;
-	int status, i = 0, num_imgs = 0;
-	const u8 *p;
+	struct lancer_cmd_req_write_object *req;
+	const u8 *data_ptr = NULL;
+	u8 *dest_image_ptr = NULL;
+	size_t image_size = 0;
+	u32 chunk_size = 0;
+	u32 data_written = 0;
+	u32 offset = 0;
+	int status = 0;
+	u8 add_status = 0;
 
-	if (!netif_running(adapter->netdev)) {
+	if (!IS_ALIGNED(fw->size, sizeof(u32))) {
 		dev_err(&adapter->pdev->dev,
-			"Firmware load not allowed (interface is down)\n");
-		return -EPERM;
+			"FW Image not properly aligned. "
+			"Length must be 4 byte aligned.\n");
+		status = -EINVAL;
+		goto lancer_fw_exit;
 	}
 
-	strcpy(fw_file, func);
+	flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
+				+ LANCER_FW_DOWNLOAD_CHUNK;
+	flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
+						&flash_cmd.dma, GFP_KERNEL);
+	if (!flash_cmd.va) {
+		status = -ENOMEM;
+		dev_err(&adapter->pdev->dev,
+			"Memory allocation failure while flashing\n");
+		goto lancer_fw_exit;
+	}
 
-	status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
-	if (status)
-		goto fw_exit;
+	req = flash_cmd.va;
+	dest_image_ptr = flash_cmd.va +
+				sizeof(struct lancer_cmd_req_write_object);
+	image_size = fw->size;
+	data_ptr = fw->data;
+
+	while (image_size) {
+		chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
+
+		/* Copy the image chunk content. */
+		memcpy(dest_image_ptr, data_ptr, chunk_size);
+
+		status = lancer_cmd_write_object(adapter, &flash_cmd,
+				chunk_size, offset, LANCER_FW_DOWNLOAD_LOCATION,
+				&data_written, &add_status);
+
+		if (status)
+			break;
+
+		offset += data_written;
+		data_ptr += data_written;
+		image_size -= data_written;
+	}
+
+	if (!status) {
+		/* Commit the FW written */
+		status = lancer_cmd_write_object(adapter, &flash_cmd,
+					0, offset, LANCER_FW_DOWNLOAD_LOCATION,
+					&data_written, &add_status);
+	}
+
+	dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
+				flash_cmd.dma);
+	if (status) {
+		dev_err(&adapter->pdev->dev,
+			"Firmware load error. "
+			"Status code: 0x%x Additional Status: 0x%x\n",
+			status, add_status);
+		goto lancer_fw_exit;
+	}
+
+	dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
+lancer_fw_exit:
+	return status;
+}
+
+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;
+	const u8 *p;
+	int status = 0, i = 0, num_imgs = 0;
 
 	p = fw->data;
 	fhdr = (struct flash_file_hdr_g2 *) p;
-	dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
 
 	flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
 	flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
@@ -2764,7 +2829,7 @@ int be_load_fw(struct be_adapter *adapter, u8 *func)
 		status = -ENOMEM;
 		dev_err(&adapter->pdev->dev,
 			"Memory allocation failure while flashing\n");
-		goto fw_exit;
+		goto be_fw_exit;
 	}
 
 	if ((adapter->generation == BE_GEN3) &&
@@ -2792,11 +2857,37 @@ int be_load_fw(struct be_adapter *adapter, u8 *func)
 			  flash_cmd.dma);
 	if (status) {
 		dev_err(&adapter->pdev->dev, "Firmware load error\n");
-		goto fw_exit;
+		goto be_fw_exit;
 	}
 
 	dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
 
+be_fw_exit:
+	return status;
+}
+
+int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
+{
+	const struct firmware *fw;
+	int status;
+
+	if (!netif_running(adapter->netdev)) {
+		dev_err(&adapter->pdev->dev,
+			"Firmware load not allowed (interface is down)\n");
+		return -1;
+	}
+
+	status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
+	if (status)
+		goto fw_exit;
+
+	dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
+
+	if (lancer_chip(adapter))
+		status = lancer_fw_download(adapter, fw);
+	else
+		status = be_fw_download(adapter, fw);
+
 fw_exit:
 	release_firmware(fw);
 	return status;