| Alexander Duyck | 04a5aef | 2014-09-20 19:46:45 -0400 | [diff] [blame] | 1 | /* Intel Ethernet Switch Host Interface Driver |
| 2 | * Copyright(c) 2013 - 2014 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 = ACCESS_ONCE((hw)->hw_addr); \ |
| 38 | if (!FM10K_REMOVED(hw_addr)) \ |
| 39 | writel((val), &hw_addr[(reg)]); \ |
| 40 | } while (0) |
| 41 | |
| 42 | /* read ctrl register which has no clear on read fields as PCIe flush */ |
| 43 | #define fm10k_write_flush(hw) fm10k_read_reg((hw), FM10K_CTRL) |
| 44 | #endif /* _FM10K_COMMON_H_ */ |