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RDMA/core: Introduce ratelimited ibdev printk functions

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Add ratelimited helpers to the ibdev_* printk functions.
Implementation inspired by counterpart dev_*_ratelimited functions.

Signed-off-by: Gal Pressman <galpress@amazon.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20190801171447.54440-2-galpress@amazon.com
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Gal Pressman 2019-08-01 20:14:46 +03:00 committed by Doug Ledford
parent 7a63b31efb
commit 05bb411ada
1 changed files with 42 additions and 0 deletions
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42
include/rdma/ib_verbs.h
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@ -107,6 +107,48 @@ static inline
void ibdev_dbg(const struct ib_device *ibdev, const char *format, ...) {}
#endif
#define ibdev_level_ratelimited(ibdev_level, ibdev, fmt, ...) \
do { \
static DEFINE_RATELIMIT_STATE(_rs, \
DEFAULT_RATELIMIT_INTERVAL, \
DEFAULT_RATELIMIT_BURST); \
if (__ratelimit(&_rs)) \
ibdev_level(ibdev, fmt, ##__VA_ARGS__); \
} while (0)
#define ibdev_emerg_ratelimited(ibdev, fmt, ...) \
ibdev_level_ratelimited(ibdev_emerg, ibdev, fmt, ##__VA_ARGS__)
#define ibdev_alert_ratelimited(ibdev, fmt, ...) \
ibdev_level_ratelimited(ibdev_alert, ibdev, fmt, ##__VA_ARGS__)
#define ibdev_crit_ratelimited(ibdev, fmt, ...) \
ibdev_level_ratelimited(ibdev_crit, ibdev, fmt, ##__VA_ARGS__)
#define ibdev_err_ratelimited(ibdev, fmt, ...) \
ibdev_level_ratelimited(ibdev_err, ibdev, fmt, ##__VA_ARGS__)
#define ibdev_warn_ratelimited(ibdev, fmt, ...) \
ibdev_level_ratelimited(ibdev_warn, ibdev, fmt, ##__VA_ARGS__)
#define ibdev_notice_ratelimited(ibdev, fmt, ...) \
ibdev_level_ratelimited(ibdev_notice, ibdev, fmt, ##__VA_ARGS__)
#define ibdev_info_ratelimited(ibdev, fmt, ...) \
ibdev_level_ratelimited(ibdev_info, ibdev, fmt, ##__VA_ARGS__)
#if defined(CONFIG_DYNAMIC_DEBUG)
/* descriptor check is first to prevent flooding with "callbacks suppressed" */
#define ibdev_dbg_ratelimited(ibdev, fmt, ...) \
do { \
static DEFINE_RATELIMIT_STATE(_rs, \
DEFAULT_RATELIMIT_INTERVAL, \
DEFAULT_RATELIMIT_BURST); \
DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
if (DYNAMIC_DEBUG_BRANCH(descriptor) && __ratelimit(&_rs)) \
__dynamic_ibdev_dbg(&descriptor, ibdev, fmt, \
##__VA_ARGS__); \
} while (0)
#else
__printf(2, 3) __cold
static inline
void ibdev_dbg_ratelimited(const struct ib_device *ibdev, const char *format, ...) {}
#endif
union ib_gid {
u8 raw[16];
struct {