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From ceaa3a5ecffe0c558c990be6c4ba682be5ce85e8 Mon Sep 17 00:00:00 2001
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From: Andrea Claudi <aclaudi@redhat.com>
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Date: Mon, 25 Mar 2019 11:40:57 +0100
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Subject: [PATCH] devlink: Add support for hot reload
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1644731
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Upstream Status: iproute2.git commit 06dd94f952e50
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commit 06dd94f952e50edeffe5ea8b7b95b5cd562b9365
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Author: Arkadi Sharshevsky <arkadis@mellanox.com>
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Date: Wed Feb 14 10:55:19 2018 +0200
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devlink: Add support for hot reload
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Add support for hot reload. It should be used in order for resource
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updates to take place.
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Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
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Acked-by: Jiri Pirko <jiri@mellanox.com>
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Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
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---
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devlink/devlink.c | 29 +++++++++++++++++++++++++++++
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1 file changed, 29 insertions(+)
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diff --git a/devlink/devlink.c b/devlink/devlink.c
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index 7f47b79450094..fc3939e564bc8 100644
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--- a/devlink/devlink.c
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+++ b/devlink/devlink.c
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@@ -1163,6 +1163,7 @@ static void cmd_dev_help(void)
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pr_err(" [ inline-mode { none | link | network | transport } ]\n");
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pr_err(" [ encap { disable | enable } ]\n");
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pr_err(" devlink dev eswitch show DEV\n");
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+ pr_err(" devlink dev reload DEV\n");
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}
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static bool cmp_arr_last_handle(struct dl *dl, const char *bus_name,
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@@ -1602,6 +1603,31 @@ static int cmd_dev_show(struct dl *dl)
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return err;
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}
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+static void cmd_dev_reload_help(void)
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+{
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+ pr_err("Usage: devlink dev reload [ DEV ]\n");
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+}
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+
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+static int cmd_dev_reload(struct dl *dl)
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+{
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+ struct nlmsghdr *nlh;
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+ int err;
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+
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+ if (dl_argv_match(dl, "help") || dl_no_arg(dl)) {
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+ cmd_dev_reload_help();
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+ return 0;
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+ }
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+
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+ nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_RELOAD,
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+ NLM_F_REQUEST | NLM_F_ACK);
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+
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+ err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, 0);
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+ if (err)
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+ return err;
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+
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+ return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL);
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+}
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+
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static int cmd_dev(struct dl *dl)
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{
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if (dl_argv_match(dl, "help")) {
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@@ -1614,6 +1640,9 @@ static int cmd_dev(struct dl *dl)
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} else if (dl_argv_match(dl, "eswitch")) {
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dl_arg_inc(dl);
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return cmd_dev_eswitch(dl);
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+ } else if (dl_argv_match(dl, "reload")) {
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+ dl_arg_inc(dl);
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+ return cmd_dev_reload(dl);
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}
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pr_err("Command \"%s\" not found\n", dl_argv(dl));
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return -ENOENT;
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--
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2.20.1
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