| /* |
| * aQuantia Corporation Network Driver |
| * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| */ |
| |
| /* File aq_utils.h: Useful macro and structures used in all layers of driver. */ |
| |
| #ifndef AQ_UTILS_H |
| #define AQ_UTILS_H |
| |
| #include "aq_common.h" |
| |
| #define AQ_DIMOF(_ARY_) ARRAY_SIZE(_ARY_) |
| |
| struct aq_obj_s { |
| atomic_t flags; |
| }; |
| |
| static inline void aq_utils_obj_set(atomic_t *flags, u32 mask) |
| { |
| unsigned long flags_old, flags_new; |
| |
| do { |
| flags_old = atomic_read(flags); |
| flags_new = flags_old | (mask); |
| } while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old); |
| } |
| |
| static inline void aq_utils_obj_clear(atomic_t *flags, u32 mask) |
| { |
| unsigned long flags_old, flags_new; |
| |
| do { |
| flags_old = atomic_read(flags); |
| flags_new = flags_old & ~(mask); |
| } while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old); |
| } |
| |
| static inline bool aq_utils_obj_test(atomic_t *flags, u32 mask) |
| { |
| return atomic_read(flags) & mask; |
| } |
| |
| #endif /* AQ_UTILS_H */ |
