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authorGal Pressman <galpress@amazon.com>2019-08-01 20:14:46 +0300
committerDoug Ledford <dledford@redhat.com>2019-08-05 12:19:55 -0400
commit05bb411ada9508b48044ef5d84dd8bc46cece607 (patch)
treec21e8a7525a71779bb62f0f3c0875151f880c990 /include/rdma/ib_verbs.h
parentRDMA/hns: Remove not used UAR assignment (diff)
downloadlinux-dev-05bb411ada9508b48044ef5d84dd8bc46cece607.tar.xz
linux-dev-05bb411ada9508b48044ef5d84dd8bc46cece607.zip
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>
Diffstat (limited to 'include/rdma/ib_verbs.h')
-rw-r--r--include/rdma/ib_verbs.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 2a1523ccd7ab..0ecda7d15df2 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -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 {