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ixgbe: remove global reset to the MAC 

Reloading FW during resets can cause issues. Remove the full reset
as it is not needed.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Emil Tantilov 2011-08-16 08:04:11 +00:00 committed by Jeff Kirsher
parent c23f5b6bbb
commit 8c838d7384
1 changed files with 2 additions and 17 deletions
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17
drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
View File

@ -93,10 +93,8 @@ static s32 ixgbe_setup_mac_link_X540(struct ixgbe_hw *hw,
**/ **/
static s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw) static s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw)
{ {
ixgbe_link_speed link_speed;
s32 status; s32 status;
u32 ctrl, i; u32 ctrl, i;
bool link_up = false;
/* Call adapter stop to disable tx/rx and clear interrupts */ /* Call adapter stop to disable tx/rx and clear interrupts */
status = hw->mac.ops.stop_adapter(hw); status = hw->mac.ops.stop_adapter(hw);
@ -107,19 +105,7 @@ static s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw)
ixgbe_clear_tx_pending(hw); ixgbe_clear_tx_pending(hw);
mac_reset_top: mac_reset_top:
/*
* Issue global reset to the MAC. Needs to be SW reset if link is up.
* If link reset is used when link is up, it might reset the PHY when
* mng is using it. If link is down or the flag to force full link
* reset is set, then perform link reset.
*/
ctrl = IXGBE_CTRL_LNK_RST;
if (!hw->force_full_reset) {
hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
if (link_up)
ctrl = IXGBE_CTRL_RST; ctrl = IXGBE_CTRL_RST;
}
ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL); ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
IXGBE_WRITE_FLUSH(hw); IXGBE_WRITE_FLUSH(hw);
@ -136,8 +122,7 @@ mac_reset_top:
status = IXGBE_ERR_RESET_FAILED; status = IXGBE_ERR_RESET_FAILED;
hw_dbg(hw, "Reset polling failed to complete.\n"); hw_dbg(hw, "Reset polling failed to complete.\n");
} }
msleep(100);
msleep(50);
/* /*
* Double resets are required for recovery from certain error * Double resets are required for recovery from certain error