summaryrefslogtreecommitdiffstats
path: root/net
diff options
context:
space:
mode:
authorChuck Lever <chuck.lever@oracle.com>2020-04-29 17:25:36 -0400
committerChuck Lever <chuck.lever@oracle.com>2020-07-13 17:28:24 -0400
commit6787f0bea27a24e4c306616565b02234ee558cfb (patch)
treebb63e38eaf833f4c0d8255790fb7f8b01c93dfd8 /net
parent17f70f8dd52be3723250d21093403bb3a9f2162f (diff)
downloadlinux-stable-6787f0bea27a24e4c306616565b02234ee558cfb.tar.gz
linux-stable-6787f0bea27a24e4c306616565b02234ee558cfb.tar.bz2
linux-stable-6787f0bea27a24e4c306616565b02234ee558cfb.zip
svcrdma: Display chunk completion ID when posting a rw_ctxt
Re-use the post_rw tracepoint (safely) to trace cc_info lifetime events, including completion IDs. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_rw.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_rw.c b/net/sunrpc/xprtrdma/svc_rdma_rw.c
index 2038b1b286dd..c16d10601d65 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_rw.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_rw.c
@@ -145,15 +145,24 @@ static int svc_rdma_rw_ctx_init(struct svcxprt_rdma *rdma,
* demand, and not cached.
*/
struct svc_rdma_chunk_ctxt {
+ struct rpc_rdma_cid cc_cid;
struct ib_cqe cc_cqe;
struct svcxprt_rdma *cc_rdma;
struct list_head cc_rwctxts;
int cc_sqecount;
};
+static void svc_rdma_cc_cid_init(struct svcxprt_rdma *rdma,
+ struct rpc_rdma_cid *cid)
+{
+ cid->ci_queue_id = rdma->sc_sq_cq->res.id;
+ cid->ci_completion_id = atomic_inc_return(&rdma->sc_completion_ids);
+}
+
static void svc_rdma_cc_init(struct svcxprt_rdma *rdma,
struct svc_rdma_chunk_ctxt *cc)
{
+ svc_rdma_cc_cid_init(rdma, &cc->cc_cid);
cc->cc_rdma = rdma;
svc_xprt_get(&rdma->sc_xprt);
@@ -237,7 +246,7 @@ static void svc_rdma_write_done(struct ib_cq *cq, struct ib_wc *wc)
struct svc_rdma_write_info *info =
container_of(cc, struct svc_rdma_write_info, wi_cc);
- trace_svcrdma_wc_write(wc);
+ trace_svcrdma_wc_write(wc, &cc->cc_cid);
atomic_add(cc->cc_sqecount, &rdma->sc_sq_avail);
wake_up(&rdma->sc_send_wait);
@@ -295,7 +304,7 @@ static void svc_rdma_wc_read_done(struct ib_cq *cq, struct ib_wc *wc)
struct svc_rdma_read_info *info =
container_of(cc, struct svc_rdma_read_info, ri_cc);
- trace_svcrdma_wc_read(wc);
+ trace_svcrdma_wc_read(wc, &cc->cc_cid);
atomic_add(cc->cc_sqecount, &rdma->sc_sq_avail);
wake_up(&rdma->sc_send_wait);
@@ -351,6 +360,7 @@ static int svc_rdma_post_chunk_ctxt(struct svc_rdma_chunk_ctxt *cc)
do {
if (atomic_sub_return(cc->cc_sqecount,
&rdma->sc_sq_avail) > 0) {
+ trace_svcrdma_post_chunk(&cc->cc_cid, cc->cc_sqecount);
ret = ib_post_send(rdma->sc_qp, first_wr, &bad_wr);
if (ret)
break;