scsi: qla2xxx: Make it explicit that ELS pass-through IOCBs use little endian

According to the firmware documentation the firmware expects all ELS
pass-through IOCB parameters in little endian format. Make this explicit.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_fw.h

@@ -761,13 +761,13 @@ struct els_entry_24xx {
 #define ECF_CLR_PASSTHRU_PEND	BIT_12
 #define ECF_INCL_FRAME_HDR	BIT_11
 
-	uint32_t rx_byte_count;
-	uint32_t tx_byte_count;
+	__le32	 rx_byte_count;
+	__le32	 tx_byte_count;
 
 	__le64	 tx_address __packed;	/* Data segment 0 address. */
-	uint32_t tx_len;		/* Data segment 0 length. */
+	__le32	 tx_len;		/* Data segment 0 length. */
 	__le64	 rx_address __packed;	/* Data segment 1 address. */
-	uint32_t rx_len;		/* Data segment 1 length. */
+	__le32	 rx_len;		/* Data segment 1 length. */
 };
 
 struct els_sts_entry_24xx {

drivers/scsi/qla2xxx/qla_iocb.c

@@ -2704,12 +2704,12 @@ qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
 
 	if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) {
 		els_iocb->tx_byte_count = els_iocb->tx_len =
-			sizeof(struct els_plogi_payload);
+			cpu_to_le32(sizeof(struct els_plogi_payload));
 		put_unaligned_le64(elsio->u.els_plogi.els_plogi_pyld_dma,
 				   &els_iocb->tx_address);
 		els_iocb->rx_dsd_count = 1;
 		els_iocb->rx_byte_count = els_iocb->rx_len =
-			sizeof(struct els_plogi_payload);
+			cpu_to_le32(sizeof(struct els_plogi_payload));
 		put_unaligned_le64(elsio->u.els_plogi.els_resp_pyld_dma,
 				   &els_iocb->rx_address);
 
@@ -2718,7 +2718,8 @@ qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
 		ql_dump_buffer(ql_log_info, vha, 0x0109,
 		    (uint8_t *)els_iocb, 0x70);
 	} else {
-		els_iocb->tx_byte_count = sizeof(struct els_logo_payload);
+		els_iocb->tx_byte_count =
+			cpu_to_le32(sizeof(struct els_logo_payload));
 		put_unaligned_le64(elsio->u.els_logo.els_logo_pyld_dma,
 				   &els_iocb->tx_address);
 		els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload));