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 02bf710629a3eec2b4b05f17943c1565b3912144..da96d1a18c20d759f4124d583286d4b53a9b3345 100644 (file)
--- 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 @@ static int bnx2x_set_num_queues(struct bnx2x *bp)
        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 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 #endif
        bnx2x_inc_load_cnt(bp);
 
+       bnx2x_release_firmware(bp);
+
        return 0;
 
 #ifdef BCM_CNIC
@@ -1454,6 +1472,8 @@ load_error1:
                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 d1979b1a7ed276f391d3a860aaf41a10449c139b..32543c32805c82e9ffe8de8b2872d8c6c127ac28 100644 (file)
--- a/drivers/net/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/bnx2x/bnx2x_cmn.h
@@ -114,6 +114,15 @@ void bnx2x_int_enable(struct bnx2x *bp);
  */
 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 b4ec2b02a465cf7d822f23700c119d6e93a2121b..13309f1717b976ea434af85d0f2fe589e57c4f85 100644 (file)
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c
@@ -7254,7 +7254,7 @@ static void __devinit bnx2x_get_pcie_width_speed(struct bnx2x *bp,
        *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 @@ do {                                                                      \
             (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 @@ static int __devinit bnx2x_init_firmware(struct bnx2x *bp, struct device *dev)
        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 @@ static int __devinit bnx2x_init_one(struct pci_dev *pdev,
        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 @@ static void __devexit bnx2x_remove_one(struct pci_dev *pdev)
        /* 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);