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RDMA/core: Introduce ratelimited ibdev printk functions
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>
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@ -107,6 +107,48 @@ static inline
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void ibdev_dbg(const struct ib_device *ibdev, const char *format, ...) {}
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#endif
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#define ibdev_level_ratelimited(ibdev_level, ibdev, fmt, ...) \
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do { \
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static DEFINE_RATELIMIT_STATE(_rs, \
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DEFAULT_RATELIMIT_INTERVAL, \
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DEFAULT_RATELIMIT_BURST); \
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if (__ratelimit(&_rs)) \
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ibdev_level(ibdev, fmt, ##__VA_ARGS__); \
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} while (0)
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#define ibdev_emerg_ratelimited(ibdev, fmt, ...) \
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ibdev_level_ratelimited(ibdev_emerg, ibdev, fmt, ##__VA_ARGS__)
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#define ibdev_alert_ratelimited(ibdev, fmt, ...) \
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ibdev_level_ratelimited(ibdev_alert, ibdev, fmt, ##__VA_ARGS__)
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#define ibdev_crit_ratelimited(ibdev, fmt, ...) \
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ibdev_level_ratelimited(ibdev_crit, ibdev, fmt, ##__VA_ARGS__)
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#define ibdev_err_ratelimited(ibdev, fmt, ...) \
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ibdev_level_ratelimited(ibdev_err, ibdev, fmt, ##__VA_ARGS__)
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#define ibdev_warn_ratelimited(ibdev, fmt, ...) \
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ibdev_level_ratelimited(ibdev_warn, ibdev, fmt, ##__VA_ARGS__)
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#define ibdev_notice_ratelimited(ibdev, fmt, ...) \
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ibdev_level_ratelimited(ibdev_notice, ibdev, fmt, ##__VA_ARGS__)
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#define ibdev_info_ratelimited(ibdev, fmt, ...) \
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ibdev_level_ratelimited(ibdev_info, ibdev, fmt, ##__VA_ARGS__)
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#if defined(CONFIG_DYNAMIC_DEBUG)
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/* descriptor check is first to prevent flooding with "callbacks suppressed" */
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#define ibdev_dbg_ratelimited(ibdev, fmt, ...) \
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do { \
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static DEFINE_RATELIMIT_STATE(_rs, \
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DEFAULT_RATELIMIT_INTERVAL, \
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DEFAULT_RATELIMIT_BURST); \
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DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
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if (DYNAMIC_DEBUG_BRANCH(descriptor) && __ratelimit(&_rs)) \
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__dynamic_ibdev_dbg(&descriptor, ibdev, fmt, \
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##__VA_ARGS__); \
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} while (0)
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#else
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__printf(2, 3) __cold
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static inline
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void ibdev_dbg_ratelimited(const struct ib_device *ibdev, const char *format, ...) {}
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#endif
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union ib_gid {
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u8 raw[16];
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struct {
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