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nvmf: add dtrace probe for nvmf io path

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This can be used for multipath validation.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Iba62c5e90b22a9a85078fbc783d3a7273c029cde
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10137
Community-CI: Mellanox Build Bot
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Dong Yi <dongx.yi@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Jim Harris 2021-11-05 19:59:56 +00:00
parent 0cedafeb63
commit 1e2c5b1f3d
2 changed files with 7 additions and 0 deletions
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4
lib/nvmf/ctrlr.c
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@ -3820,6 +3820,10 @@ nvmf_ctrlr_process_io_cmd(struct spdk_nvmf_request *req)
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
SPDK_DTRACE_PROBE3(nvmf_request_io_exec_path, req,
req->qpair->ctrlr->listener->trid->traddr,
req->qpair->ctrlr->listener->trid->trsvcid);
/* scan-build falsely reporting dereference of null pointer */
assert(group != NULL && group->sgroups != NULL);
ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[nsid - 1];

3
scripts/bpf/nvmf_path.bt Normal file
View File

@ -0,0 +1,3 @@
usdt:__EXE__:nvmf_request_io_exec_path {
printf("traddr:%s trsvcid:%s\n", str(arg2), str(arg3));
}