LXR linux/drivers/net/ethernet/intel/fm10k/fm10k

   1/* Intel(R) Ethernet Switch Host Interface Driver
   2 * Copyright(c) 2013 - 2016 Intel Corporation.
   3 *
   4 * This program is free software; you can redistribute it and/or modify it
   5 * under the terms and conditions of the GNU General Public License,
   6 * version 2, as published by the Free Software Foundation.
   7 *
   8 * This program is distributed in the hope it will be useful, but WITHOUT
   9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11 * more details.
  12 *
  13 * The full GNU General Public License is included in this distribution in
  14 * the file called "COPYING".
  15 *
  16 * Contact Information:
  17 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  18 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  19 */
  20
  21#ifndef _FM10K_COMMON_H_
  22#define _FM10K_COMMON_H_
  23
  24#include "fm10k_type.h"
  25
  26#define FM10K_REMOVED(hw_addr) unlikely(!(hw_addr))
  27
  28/* PCI configuration read */
  29u16 fm10k_read_pci_cfg_word(struct fm10k_hw *hw, u32 reg);
  30
  31/* read operations, indexed using DWORDS */
  32u32 fm10k_read_reg(struct fm10k_hw *hw, int reg);
  33
  34/* write operations, indexed using DWORDS */
  35#define fm10k_write_reg(hw, reg, val) \
  36do { \
  37        u32 __iomem *hw_addr = READ_ONCE((hw)->hw_addr); \
  38        if (!FM10K_REMOVED(hw_addr)) \
  39                writel((val), &hw_addr[(reg)]); \
  40} while (0)
  41
  42/* Switch register write operations, index using DWORDS */
  43#define fm10k_write_sw_reg(hw, reg, val) \
  44do { \
  45        u32 __iomem *sw_addr = READ_ONCE((hw)->sw_addr); \
  46        if (!FM10K_REMOVED(sw_addr)) \
  47                writel((val), &sw_addr[(reg)]); \
  48} while (0)
  49
  50/* read ctrl register which has no clear on read fields as PCIe flush */
  51#define fm10k_write_flush(hw) fm10k_read_reg((hw), FM10K_CTRL)
  52s32 fm10k_get_bus_info_generic(struct fm10k_hw *hw);
  53s32 fm10k_get_invariants_generic(struct fm10k_hw *hw);
  54s32 fm10k_disable_queues_generic(struct fm10k_hw *hw, u16 q_cnt);
  55s32 fm10k_start_hw_generic(struct fm10k_hw *hw);
  56s32 fm10k_stop_hw_generic(struct fm10k_hw *hw);
  57u32 fm10k_read_hw_stats_32b(struct fm10k_hw *hw, u32 addr,
  58                            struct fm10k_hw_stat *stat);
  59#define fm10k_update_hw_base_32b(stat, delta) ((stat)->base_l += (delta))
  60void fm10k_update_hw_stats_q(struct fm10k_hw *hw, struct fm10k_hw_stats_q *q,
  61                             u32 idx, u32 count);
  62#define fm10k_unbind_hw_stats_32b(s) ((s)->base_h = 0)
  63void fm10k_unbind_hw_stats_q(struct fm10k_hw_stats_q *q, u32 idx, u32 count);
  64s32 fm10k_get_host_state_generic(struct fm10k_hw *hw, bool *host_ready);
  65#endif /* _FM10K_COMMON_H_ */
  66