drivers/net/ethernet/intel/fm10k/fm10k_common.h

   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 */
  29 u16 fm10k_read_pci_cfg_word(struct fm10k_hw *hw, u32 reg);
  30
  31 /* read operations, indexed using DWORDS */
  32 u32 fm10k_read_reg(struct fm10k_hw *hw, int reg);
  33
  34 /* write operations, indexed using DWORDS */
  35 #define fm10k_write_reg(hw, reg, val) \
  36 do { \
  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) \
  44 do { \
  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)
  52 s32 fm10k_get_bus_info_generic(struct fm10k_hw *hw);
  53 s32 fm10k_get_invariants_generic(struct fm10k_hw *hw);
  54 s32 fm10k_disable_queues_generic(struct fm10k_hw *hw, u16 q_cnt);
  55 s32 fm10k_start_hw_generic(struct fm10k_hw *hw);
  56 s32 fm10k_stop_hw_generic(struct fm10k_hw *hw);
  57 u32 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))
  60 void 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)
  63 void fm10k_unbind_hw_stats_q(struct fm10k_hw_stats_q *q, u32 idx, u32 count);
  64 s32 fm10k_get_host_state_generic(struct fm10k_hw *hw, bool *host_ready);
  65 #endif /* _FM10K_COMMON_H_ */