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| author |   Chuck Lever <chuck.lever@oracle.com> | 2020-05-19 09:30:32 -0400 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2020-07-13 17:28:24 -0400 |
| commit | f7bd657b55e3484cadc37a6439de23d2fd703bd6 (patch) | |
| tree | a9c235d11e871b7edaa278554730a2d1a2992559 /include/trace | |
| parent | svcrdma: Add common XDR encoders for RDMA and Read segments (diff) | |
| download | wireguard-linux-f7bd657b55e3484cadc37a6439de23d2fd703bd6.tar.xz wireguard-linux-f7bd657b55e3484cadc37a6439de23d2fd703bd6.zip | |
svcrdma: Introduce infrastructure to support completion IDs
The goal is to replace CQE kernel memory addresses in completion-
related tracepoints.
Each completion ID matches an incoming Send or Receive completion
to a Completion Queue and to a previous ib_post_*(). The ID can
then be displayed in an error message or recorded in a trace
record.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/rpcrdma.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/trace/events/rpcrdma.h b/include/trace/events/rpcrdma.h index 0eff80dee066..70ab989aa3b7 100644 --- a/include/trace/events/rpcrdma.h +++ b/include/trace/events/rpcrdma.h @@ -11,6 +11,7 @@ #define _TRACE_RPCRDMA_H #include <linux/scatterlist.h> +#include <linux/sunrpc/rpc_rdma_cid.h> #include <linux/tracepoint.h> #include <trace/events/rdma.h> @@ -18,6 +19,48 @@ ** Event classes **/ +DECLARE_EVENT_CLASS(rpcrdma_completion_class, + TP_PROTO( + const struct ib_wc *wc, + const struct rpc_rdma_cid *cid + ), + + TP_ARGS(wc, cid), + + TP_STRUCT__entry( + __field(u32, cq_id) + __field(int, completion_id) + __field(unsigned long, status) + __field(unsigned int, vendor_err) + ), + + TP_fast_assign( + __entry->cq_id = cid->ci_queue_id; + __entry->completion_id = cid->ci_completion_id; + __entry->status = wc->status; + if (wc->status) + __entry->vendor_err = wc->vendor_err; + else + __entry->vendor_err = 0; + ), + + TP_printk("cq.id=%u cid=%d status=%s (%lu/0x%x)", + __entry->cq_id, __entry->completion_id, + rdma_show_wc_status(__entry->status), + __entry->status, __entry->vendor_err + ) +); + +#define DEFINE_COMPLETION_EVENT(name) \ + DEFINE_EVENT(rpcrdma_completion_class, name, \ + TP_PROTO( \ + const struct ib_wc *wc, \ + const struct rpc_rdma_cid *cid \ + ), \ + TP_ARGS(wc, cid)) + +DEFINE_COMPLETION_EVENT(dummy); + DECLARE_EVENT_CLASS(xprtrdma_reply_event, TP_PROTO( const struct rpcrdma_rep *rep |