Add ratelimited helpers to the ibdev_* printk functions.
Implementation inspired by counterpart dev_*_ratelimited functions.
Signed-off-by: Gal Pressman <galpress@xxxxxxxxxx>
---
This is a followup patch to the addition of ibdev printk helpers to the
subsystem.
>From quick grep of infiniband drivers, some of the drivers will need this
variation when starting to use ibdev printk functions. In addition, I plan to
use them in EFA as well.
---
include/rdma/ib_verbs.h | 51 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 6cf8c4bf369e..e6bdea23e5d4 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -104,6 +104,57 @@ 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)
+#elif defined(DEBUG)
+#define ibdev_dbg_ratelimited(ibdev, fmt, ...) \
+do { \
+ static DEFINE_RATELIMIT_STATE(_rs, \
+ DEFAULT_RATELIMIT_INTERVAL, \
+ DEFAULT_RATELIMIT_BURST); \
+ if (__ratelimit(&_rs)) \
+ ibdev_printk(KERN_DEBUG, 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 {
--
2.7.4
