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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* Intel(R) Ethernet Switch Host Interface Driver
   3 * Copyright(c) 2013 - 2016 Intel Corporation.
   4 *
   5 * This program is free software; you can redistribute it and/or modify it
   6 * under the terms and conditions of the GNU General Public License,
   7 * version 2, as published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope it will be useful, but WITHOUT
  10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 * more details.
  13 *
  14 * The full GNU General Public License is included in this distribution in
  15 * the file called "COPYING".
  16 *
  17 * Contact Information:
  18 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  19 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  20 */
  21
  22#ifndef _FM10K_COMMON_H_
  23#define _FM10K_COMMON_H_
  24
  25#include "fm10k_type.h"
  26
  27#define FM10K_REMOVED(hw_addr) unlikely(!(hw_addr))
  28
  29/* PCI configuration read */
  30u16 fm10k_read_pci_cfg_word(struct fm10k_hw *hw, u32 reg);
  31
  32/* read operations, indexed using DWORDS */
  33u32 fm10k_read_reg(struct fm10k_hw *hw, int reg);
  34
  35/* write operations, indexed using DWORDS */
  36#define fm10k_write_reg(hw, reg, val) \
  37do { \
  38        u32 __iomem *hw_addr = READ_ONCE((hw)->hw_addr); \
  39        if (!FM10K_REMOVED(hw_addr)) \
  40                writel((val), &hw_addr[(reg)]); \
  41} while (0)
  42
  43/* Switch register write operations, index using DWORDS */
  44#define fm10k_write_sw_reg(hw, reg, val) \
  45do { \
  46        u32 __iomem *sw_addr = READ_ONCE((hw)->sw_addr); \
  47        if (!FM10K_REMOVED(sw_addr)) \
  48                writel((val), &sw_addr[(reg)]); \
  49} while (0)
  50
  51/* read ctrl register which has no clear on read fields as PCIe flush */
  52#define fm10k_write_flush(hw) fm10k_read_reg((hw), FM10K_CTRL)
  53s32 fm10k_get_bus_info_generic(struct fm10k_hw *hw);
  54s32 fm10k_get_invariants_generic(struct fm10k_hw *hw);
  55s32 fm10k_disable_queues_generic(struct fm10k_hw *hw, u16 q_cnt);
  56s32 fm10k_start_hw_generic(struct fm10k_hw *hw);
  57s32 fm10k_stop_hw_generic(struct fm10k_hw *hw);
  58u32 fm10k_read_hw_stats_32b(struct fm10k_hw *hw, u32 addr,
  59                            struct fm10k_hw_stat *stat);
  60#define fm10k_update_hw_base_32b(stat, delta) ((stat)->base_l += (delta))
  61void fm10k_update_hw_stats_q(struct fm10k_hw *hw, struct fm10k_hw_stats_q *q,
  62                             u32 idx, u32 count);
  63#define fm10k_unbind_hw_stats_32b(s) ((s)->base_h = 0)
  64void fm10k_unbind_hw_stats_q(struct fm10k_hw_stats_q *q, u32 idx, u32 count);
  65s32 fm10k_get_host_state_generic(struct fm10k_hw *hw, bool *host_ready);
  66#endif /* _FM10K_COMMON_H_ */
  67