ixgbe: Fix FW init/release, make this code a function
A gap was left in the FW release/grab code in up/down path. Fix
it by making the release/grab code a function and calling it in
appropriate locations.
Signed-off-by: Ayyappan Veeraiyan <ayyappan.veeraiyan@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index b4c9c77..c814d9b 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -87,6 +87,25 @@
#define DEFAULT_DEBUG_LEVEL_SHIFT 3
+static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter)
+{
+ u32 ctrl_ext;
+
+ /* Let firmware take over control of h/w */
+ ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT);
+ IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT,
+ ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD);
+}
+
+static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter)
+{
+ u32 ctrl_ext;
+
+ /* Let firmware know the driver has taken over */
+ ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT);
+ IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT,
+ ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD);
+}
#ifdef DEBUG
/**
@@ -1204,6 +1223,8 @@
u32 txdctl, rxdctl, mhadd;
int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
+ ixgbe_get_hw_control(adapter);
+
if (adapter->flags & (IXGBE_FLAG_MSIX_ENABLED |
IXGBE_FLAG_MSI_ENABLED)) {
if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
@@ -1490,6 +1511,8 @@
pci_enable_wake(pdev, PCI_D3hot, 0);
pci_enable_wake(pdev, PCI_D3cold, 0);
+ ixgbe_release_hw_control(adapter);
+
pci_disable_device(pdev);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
@@ -1891,14 +1914,8 @@
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
int err;
- u32 ctrl_ext;
u32 num_rx_queues = adapter->num_rx_queues;
- /* Let firmware know the driver has taken over */
- ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT);
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT,
- ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD);
-
try_intr_reinit:
/* allocate transmit descriptors */
err = ixgbe_setup_all_tx_resources(adapter);
@@ -1949,6 +1966,7 @@
return 0;
err_up:
+ ixgbe_release_hw_control(adapter);
ixgbe_free_irq(adapter);
err_req_irq:
ixgbe_free_all_rx_resources(adapter);
@@ -1974,7 +1992,6 @@
static int ixgbe_close(struct net_device *netdev)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
- u32 ctrl_ext;
ixgbe_down(adapter);
ixgbe_free_irq(adapter);
@@ -1982,9 +1999,7 @@
ixgbe_free_all_tx_resources(adapter);
ixgbe_free_all_rx_resources(adapter);
- ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT);
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT,
- ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD);
+ ixgbe_release_hw_control(adapter);
return 0;
}
@@ -2749,6 +2764,7 @@
return 0;
err_register:
+ ixgbe_release_hw_control(adapter);
err_hw_init:
err_sw_init:
err_eeprom:
@@ -2784,6 +2800,8 @@
unregister_netdev(netdev);
+ ixgbe_release_hw_control(adapter);
+
kfree(adapter->tx_ring);
kfree(adapter->rx_ring);