From 452611d090e456cf7b49bfbb2522df2928452e10 Mon Sep 17 00:00:00 2001 From: Andrea Claudi Date: Mon, 10 Jun 2019 15:32:55 +0200 Subject: [PATCH] rdma: Add an option to rename IB device interface Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1663228 Upstream Status: iproute2.git commit 4443c9c6a01ea commit 4443c9c6a01eac8c8f2743d4d185ceb9be4d1207 Author: Leon Romanovsky Date: Wed Oct 31 09:17:57 2018 +0200 rdma: Add an option to rename IB device interface Enrich rdmatool with an option to rename IB devices, the command interface follows Iproute2 convention: "rdma dev set [OLD-DEVNAME] name NEW-DEVNAME" Signed-off-by: Leon Romanovsky Reviewed-by: Steve Wise Signed-off-by: David Ahern --- rdma/dev.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/rdma/dev.c b/rdma/dev.c index e2eafe47311b0..760b7fb3bb18f 100644 --- a/rdma/dev.c +++ b/rdma/dev.c @@ -14,6 +14,7 @@ static int dev_help(struct rd *rd) { pr_out("Usage: %s dev show [DEV]\n", rd->filename); + pr_out(" %s dev set [DEV] name DEVNAME\n", rd->filename); return 0; } @@ -240,17 +241,51 @@ static int dev_one_show(struct rd *rd) return rd_exec_cmd(rd, cmds, "parameter"); } +static int dev_set_name(struct rd *rd) +{ + uint32_t seq; + + if (rd_no_arg(rd)) { + pr_err("Please provide device new name.\n"); + return -EINVAL; + } + + rd_prepare_msg(rd, RDMA_NLDEV_CMD_SET, + &seq, (NLM_F_REQUEST | NLM_F_ACK)); + mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx); + mnl_attr_put_strz(rd->nlh, RDMA_NLDEV_ATTR_DEV_NAME, rd_argv(rd)); + + return rd_send_msg(rd); +} + +static int dev_one_set(struct rd *rd) +{ + const struct rd_cmd cmds[] = { + { NULL, dev_help}, + { "name", dev_set_name}, + { 0 } + }; + + return rd_exec_cmd(rd, cmds, "parameter"); +} + static int dev_show(struct rd *rd) { return rd_exec_dev(rd, dev_one_show); } +static int dev_set(struct rd *rd) +{ + return rd_exec_require_dev(rd, dev_one_set); +} + int cmd_dev(struct rd *rd) { const struct rd_cmd cmds[] = { { NULL, dev_show }, { "show", dev_show }, { "list", dev_show }, + { "set", dev_set }, { "help", dev_help }, { 0 } }; -- 2.20.1