bnx2x: Load firmware in open() instead of probe()

Loading firmware when actually bringing eth device up.
This also will allow driver to be insmoded when filesystem with
firmware files is not available yet.

Suggested by Stephen Hemminger <shemminger@vyatta.com>

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2x/bnx2x_cmn.c b/drivers/net/bnx2x/bnx2x_cmn.c
index 02bf710..da96d1a 100644
--- a/drivers/net/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/bnx2x/bnx2x_cmn.c
@@ -20,6 +20,7 @@
 #include <linux/ip.h>
 #include <linux/ipv6.h>
 #include <net/ip6_checksum.h>
+#include <linux/firmware.h>
 #include "bnx2x_cmn.h"
 
 #ifdef BCM_VLAN
@@ -1206,12 +1207,27 @@
 	return rc;
 }
 
+static void bnx2x_release_firmware(struct bnx2x *bp)
+{
+	kfree(bp->init_ops_offsets);
+	kfree(bp->init_ops);
+	kfree(bp->init_data);
+	release_firmware(bp->firmware);
+}
+
 /* must be called with rtnl_lock */
 int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 {
 	u32 load_code;
 	int i, rc;
 
+	/* Set init arrays */
+	rc = bnx2x_init_firmware(bp);
+	if (rc) {
+		BNX2X_ERR("Error loading firmware\n");
+		return rc;
+	}
+
 #ifdef BNX2X_STOP_ON_ERROR
 	if (unlikely(bp->panic))
 		return -EPERM;
@@ -1427,6 +1443,8 @@
 #endif
 	bnx2x_inc_load_cnt(bp);
 
+	bnx2x_release_firmware(bp);
+
 	return 0;
 
 #ifdef BCM_CNIC
@@ -1454,6 +1472,8 @@
 		netif_napi_del(&bnx2x_fp(bp, i, napi));
 	bnx2x_free_mem(bp);
 
+	bnx2x_release_firmware(bp);
+
 	return rc;
 }
 
diff --git a/drivers/net/bnx2x/bnx2x_cmn.h b/drivers/net/bnx2x/bnx2x_cmn.h
index d1979b1..32543c3 100644
--- a/drivers/net/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/bnx2x/bnx2x_cmn.h
@@ -115,6 +115,15 @@
 void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw);
 
 /**
+ * Loads device firmware
+ *
+ * @param bp
+ *
+ * @return int
+ */
+int bnx2x_init_firmware(struct bnx2x *bp);
+
+/**
  * Init HW blocks according to current initialization stage:
  * COMMON, PORT or FUNCTION.
  *
diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index b4ec2b0..13309f1 100644
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c
@@ -7254,7 +7254,7 @@
 	*speed = (val & PCICFG_LINK_SPEED) >> PCICFG_LINK_SPEED_SHIFT;
 }
 
-static int __devinit bnx2x_check_firmware(struct bnx2x *bp)
+static int bnx2x_check_firmware(struct bnx2x *bp)
 {
 	const struct firmware *firmware = bp->firmware;
 	struct bnx2x_fw_file_hdr *fw_hdr;
@@ -7365,7 +7365,7 @@
 	     (u8 *)bp->arr, len);					\
 } while (0)
 
-static int __devinit bnx2x_init_firmware(struct bnx2x *bp, struct device *dev)
+int bnx2x_init_firmware(struct bnx2x *bp)
 {
 	const char *fw_file_name;
 	struct bnx2x_fw_file_hdr *fw_hdr;
@@ -7376,21 +7376,21 @@
 	else if (CHIP_IS_E1H(bp))
 		fw_file_name = FW_FILE_NAME_E1H;
 	else {
-		dev_err(dev, "Unsupported chip revision\n");
+		BNX2X_ERR("Unsupported chip revision\n");
 		return -EINVAL;
 	}
 
-	dev_info(dev, "Loading %s\n", fw_file_name);
+	BNX2X_DEV_INFO("Loading %s\n", fw_file_name);
 
-	rc = request_firmware(&bp->firmware, fw_file_name, dev);
+	rc = request_firmware(&bp->firmware, fw_file_name, &bp->pdev->dev);
 	if (rc) {
-		dev_err(dev, "Can't load firmware file %s\n", fw_file_name);
+		BNX2X_ERR("Can't load firmware file %s\n", fw_file_name);
 		goto request_firmware_exit;
 	}
 
 	rc = bnx2x_check_firmware(bp);
 	if (rc) {
-		dev_err(dev, "Corrupt firmware file %s\n", fw_file_name);
+		BNX2X_ERR("Corrupt firmware file %s\n", fw_file_name);
 		goto request_firmware_exit;
 	}
 
@@ -7468,13 +7468,6 @@
 	if (rc)
 		goto init_one_exit;
 
-	/* Set init arrays */
-	rc = bnx2x_init_firmware(bp, &pdev->dev);
-	if (rc) {
-		dev_err(&pdev->dev, "Error loading firmware\n");
-		goto init_one_exit;
-	}
-
 	rc = register_netdev(dev);
 	if (rc) {
 		dev_err(&pdev->dev, "Cannot register net device\n");
@@ -7525,11 +7518,6 @@
 	/* Make sure RESET task is not scheduled before continuing */
 	cancel_delayed_work_sync(&bp->reset_task);
 
-	kfree(bp->init_ops_offsets);
-	kfree(bp->init_ops);
-	kfree(bp->init_data);
-	release_firmware(bp->firmware);
-
 	if (bp->regview)
 		iounmap(bp->regview);