diff options
| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2008-09-12 02:55:32 (GMT) |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-09-24 22:54:49 (GMT) |
| commit | cf8280ee7be3aaf44d32e389f15c725b850e5e32 (patch) | |
| tree | 3511ef0b19370597c7bd5fbe43a74d563522adeb /drivers/net/ixgbe/ixgbe_82598.c | |
| parent | ce94bf469edf84228771b58489944cf654aeb496 (diff) | |
| download | linux-cf8280ee7be3aaf44d32e389f15c725b850e5e32.tar.xz | |
ixgbe: Update watchdog thread to accomodate longerlink_up events
This patch updates the link_up code and watchdog thread so that link_up
doesn't cause stack overflows due to long waits in interrupt context.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_82598.c')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_82598.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c index ba09063..1e014bc 100644 --- a/drivers/net/ixgbe/ixgbe_82598.c +++ b/drivers/net/ixgbe/ixgbe_82598.c @@ -47,7 +47,8 @@ static s32 ixgbe_get_copper_link_settings_82598(struct ixgbe_hw *hw, static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw); static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw); static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw, u32 *speed, - bool *link_up); + bool *link_up, + bool link_up_wait_to_complete); static s32 ixgbe_setup_mac_link_speed_82598(struct ixgbe_hw *hw, u32 speed, bool autoneg, bool autoneg_wait_to_complete); @@ -277,20 +278,36 @@ static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw) * @hw: pointer to hardware structure * @speed: pointer to link speed * @link_up: true is link is up, false otherwise + * @link_up_wait_to_complete: bool used to wait for link up or not * * Reads the links register to determine if link is up and the current speed **/ static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw, u32 *speed, - bool *link_up) + bool *link_up, + bool link_up_wait_to_complete) { u32 links_reg; + u32 i; links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS); - if (links_reg & IXGBE_LINKS_UP) - *link_up = true; - else - *link_up = false; + if (link_up_wait_to_complete) { + for (i = 0; i < IXGBE_LINK_UP_TIME; i++) { + if (links_reg & IXGBE_LINKS_UP) { + *link_up = true; + break; + } else { + *link_up = false; + } + msleep(100); + links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS); + } + } else { + if (links_reg & IXGBE_LINKS_UP) + *link_up = true; + else + *link_up = false; + } if (links_reg & IXGBE_LINKS_SPEED) *speed = IXGBE_LINK_SPEED_10GB_FULL; |