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trace: allow usage of tracepoint groups while enabling traces

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Let user pass a name of tracepoint group. Currently the only way to
enable traces with '-e' option is to pass the tpoint mask, which is
cumbersome. This patch modifies our API to accept strings as parameters.
Example:

-e nvmf_tcp:2,thread

enables nvmf_tcp's second tracepoint and the whole thread tpoint group.

Modified spdk_trace_enable_tpoint_group() - it will be also used in
the changed form later in the series to accept tpoint mask when using
RPCs to activate/deactivate traces.

Change-Id: I6b02363cce3b44b0b578877bc2505f5a4e2fffdd
Signed-off-by: Krzysztof Karas <krzysztof.karas@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10818
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Krzysztof Karas 2021-12-21 16:22:40 +00:00 committed by Tomasz Zawadzki
parent aa1ec3730d
commit 5fed6bd89a
1 changed files with 8 additions and 2 deletions
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10
lib/event/app.c
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@ -403,7 +403,10 @@ app_setup_trace(struct spdk_app_opts *opts)
errno = 0;
tpoint_group_mask = strtoull(tpoint_group, &end, 16);
if (*end != '\0' || errno) {
break;
tpoint_group_mask = spdk_trace_create_tpoint_group_mask(tpoint_group);
if (tpoint_group_mask == 0) {
break;
}
}
/* Check if tpoint group mask has only one bit set.
* This is to avoid enabling individual tpoints in
@ -423,7 +426,10 @@ app_setup_trace(struct spdk_app_opts *opts)
errno = 0;
tpoint_group_mask = strtoull(tpoint_group_str, &end, 16);
if (*end != '\0' || errno) {
break;
tpoint_group_mask = spdk_trace_create_tpoint_group_mask(tpoint_group_str);
if (tpoint_group_mask == 0) {
break;
}
}
tpoint_mask = -1ULL;
}