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| author | Jacob Keller <jacob.e.keller@intel.com> | 2020-04-28 13:43:24 -0700 |
|---|---|---|
| committer | Stephen Hemminger <stephen@networkplumber.org> | 2020-04-29 22:31:55 -0700 |
| commit | 7ae84fedcb15815a7488558b0b319cffdd12a565 (patch) | |
| tree | c3d2f7f70494e854da6269533ea455951136bea7 | |
| parent | 2b93f66863a91251e6e974de05d7ea5d7fba8949 (diff) | |
| download | iproute2-7ae84fedcb15815a7488558b0b319cffdd12a565.tar.gz | |
devlink: add support for DEVLINK_CMD_REGION_NEW
Add support to request that a new snapshot be taken immediately for
a devlink region. To avoid confusion, the desired snapshot id must be
provided.
Note that if a region does not support snapshots on demand, the kernel
will reject the request with -EOPNOTSUP.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
| -rw-r--r-- | devlink/devlink.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/devlink/devlink.c b/devlink/devlink.c index f67fe6dd8..16602abf3 100644 --- a/devlink/devlink.c +++ b/devlink/devlink.c @@ -6464,10 +6464,27 @@ static int cmd_region_read(struct dl *dl) return err; } +static int cmd_region_snapshot_new(struct dl *dl) +{ + struct nlmsghdr *nlh; + int err; + + nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_REGION_NEW, + NLM_F_REQUEST | NLM_F_ACK); + + err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE_REGION | + DL_OPT_REGION_SNAPSHOT_ID, 0); + if (err) + return err; + + return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL); +} + static void cmd_region_help(void) { pr_err("Usage: devlink region show [ DEV/REGION ]\n"); pr_err(" devlink region del DEV/REGION snapshot SNAPSHOT_ID\n"); + pr_err(" devlink region new DEV/REGION snapshot SNAPSHOT_ID\n"); pr_err(" devlink region dump DEV/REGION [ snapshot SNAPSHOT_ID ]\n"); pr_err(" devlink region read DEV/REGION [ snapshot SNAPSHOT_ID ] address ADDRESS length LENGTH\n"); } @@ -6491,6 +6508,9 @@ static int cmd_region(struct dl *dl) } else if (dl_argv_match(dl, "read")) { dl_arg_inc(dl); return cmd_region_read(dl); + } else if (dl_argv_match(dl, "new")) { + dl_arg_inc(dl); + return cmd_region_snapshot_new(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; |