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dbd15b8f9c
It is possible on some HW that a system reset could occur when we are holding the SWFW semaphore lock. So next time the driver was loaded we would see it incorrectly as locked. This patch will recover from that state by: Attempting to acquire the semaphore and then regardless of whether or not it was acquire we immediately release it. This will force us into a known good state. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
41 lines
1.8 KiB
C
41 lines
1.8 KiB
C
/*******************************************************************************
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*
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* Intel 10 Gigabit PCI Express Linux driver
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* Copyright(c) 1999 - 2014 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* The full GNU General Public License is included in this distribution in
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* the file called "COPYING".
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*
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* Contact Information:
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* Linux NICS <linux.nics@intel.com>
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* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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*****************************************************************************/
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#include "ixgbe_type.h"
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s32 ixgbe_get_invariants_X540(struct ixgbe_hw *hw);
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s32 ixgbe_setup_mac_link_X540(struct ixgbe_hw *hw, ixgbe_link_speed speed,
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bool autoneg_wait_to_complete);
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s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw);
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s32 ixgbe_start_hw_X540(struct ixgbe_hw *hw);
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enum ixgbe_media_type ixgbe_get_media_type_X540(struct ixgbe_hw *hw);
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s32 ixgbe_setup_mac_link_X540(struct ixgbe_hw *hw, ixgbe_link_speed speed,
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bool autoneg_wait_to_complete);
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s32 ixgbe_blink_led_start_X540(struct ixgbe_hw *hw, u32 index);
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s32 ixgbe_blink_led_stop_X540(struct ixgbe_hw *hw, u32 index);
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s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask);
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void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask);
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void ixgbe_init_swfw_sync_X540(struct ixgbe_hw *hw);
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s32 ixgbe_init_eeprom_params_X540(struct ixgbe_hw *hw);
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