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Message-ID: <20241107080248.2028680-6-cmeioahs@nvidia.com>
Date: Thu, 7 Nov 2024 10:02:48 +0200
From: Chiara Meiohas <cmeioahs@...dia.com>
To: <dsahern@...il.com>, <leonro@...dia.com>
CC: <linux-rdma@...r.kernel.org>, <netdev@...r.kernel.org>, <jgg@...dia.com>,
<stephen@...workplumber.org>, Chiara Meiohas <cmeiohas@...dia.com>, "Mark
Bloch" <mbloch@...dia.com>
Subject: [PATCH v2 iproute2-next 5/5] rdma: Add IB device and net device rename events
From: Chiara Meiohas <cmeiohas@...dia.com>
rdma monitor displays the IB device name and the netdevice
name when displaying event info. Since users can modiy these
names, we track and notify on renaming events.
$ rdma monitor
$ rmmod mlx5_ib
[UNREGISTER] dev 1 rocep8s0f1
[UNREGISTER] dev 0 rocep8s0f0
$ modprobe mlx5_ib
[REGISTER] dev 2 mlx5_0
[NETDEV_ATTACH] dev 2 mlx5_0 port 1 netdev 4 eth2
[REGISTER] dev 3 mlx5_1
[NETDEV_ATTACH] dev 3 mlx5_1 port 1 netdev 5 eth3
[RENAME] dev 2 rocep8s0f0
[RENAME] dev 3 rocep8s0f1
$ devlink dev eswitch set pci/0000:08:00.0 mode switchdev
[UNREGISTER] dev 2 rocep8s0f0
[REGISTER] dev 4 mlx5_0
[NETDEV_ATTACH] dev 4 mlx5_0 port 30 netdev 4 eth2
[RENAME] dev 4 rdmap8s0f0
$ echo 4 > /sys/class/net/eth2/device/sriov_numvfs
[NETDEV_ATTACH] dev 4 rdmap8s0f0 port 2 netdev 7 eth4
[NETDEV_ATTACH] dev 4 rdmap8s0f0 port 3 netdev 8 eth5
[NETDEV_ATTACH] dev 4 rdmap8s0f0 port 4 netdev 9 eth6
[NETDEV_ATTACH] dev 4 rdmap8s0f0 port 5 netdev 10 eth7
[REGISTER] dev 5 mlx5_0
[NETDEV_ATTACH] dev 5 mlx5_0 port 1 netdev 11 eth8
[REGISTER] dev 6 mlx5_1
[NETDEV_ATTACH] dev 6 mlx5_1 port 1 netdev 12 eth9
[RENAME] dev 5 rocep8s0f0v0
[RENAME] dev 6 rocep8s0f0v1
[REGISTER] dev 7 mlx5_0
[NETDEV_ATTACH] dev 7 mlx5_0 port 1 netdev 13 eth10
[RENAME] dev 7 rocep8s0f0v2
[REGISTER] dev 8 mlx5_0
[NETDEV_ATTACH] dev 8 mlx5_0 port 1 netdev 14 eth11
[RENAME] dev 8 rocep8s0f0v3
$ ip link set eth2 name myeth2
[NETDEV_RENAME] netdev 4 myeth2
$ ip link set eth1 name myeth1
** no events received, because eth1 is not attached to
an IB device **
Signed-off-by: Chiara Meiohas <cmeiohas@...dia.com>
Reviewed-by: Mark Bloch <mbloch@...dia.com>
Reviewed-by: Leon Romanovsky <leonro@...dia.com>
---
rdma/monitor.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/rdma/monitor.c b/rdma/monitor.c
index 0a2d3053..cc2d42d9 100644
--- a/rdma/monitor.c
+++ b/rdma/monitor.c
@@ -16,6 +16,8 @@ static void mon_print_event_type(struct nlattr **tb)
"[UNREGISTER]",
"[NETDEV_ATTACH]",
"[NETDEV_DETACH]",
+ "[RENAME]",
+ "[NETDEV_RENAME]",
};
enum rdma_nl_notify_event_type etype;
static char unknown_type[32];
--
2.44.0
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