SMCD-LINKGROUP(8) Linux Programmer's Manual SMCD-LINKGROUP(8)

smcd-linkgroup - Print information about SMC-D link groups

smcr-linkgroup - Print information about SMC-R link groups and links


smcd [ OPTIONS ] linkgroup { COMMAND | help }

smcd linkgroup [ show ] [ all | LG-ID ]

smcr [ OPTIONS ] linkgroup { COMMAND | help }

smcr linkgroup { show | link-show } [ all | LG-ID ] [ netdev NETDEV ] [ ibdev IBDEV ]

The smcd linkgroup command displays SMC-D link groups and their properties. The smcr linkgroup command displays SMC-R link groups and links with their properties.

inspect the link group properties

Show all link groups.

Show the link group with the ID LG-ID

SMC-R only: list the link groups for the specified network device.

SMC-R only: list the link groups for the specified RoCE device.

SMC-R only: Inspect the link properties

List all links of all link groups.

Show links of the link group with the id. LG-ID

List the links of the link groups for the specified network device.

List the links of the link groups for the specified RoCE device.

ID of the link group.

Role of the link group.

The link group has a SERVER role.
The link group has a CLIENT role.

Type of the link group.

The link group has the initial type.
The link group has only a single link, i.e. the local and the peer system can offer one device port only for this link group, which means a link outage on either side cannot be recovered.
The link group has two symmetric links, i.e. the local and the peer system can offer two device ports for this link group, which means a link outage on either side can be recovered.
The link group has asymmetric links, i.e. the peer system can offer one device port only for this link group, which means a link outage on the peer side cannot be recovered.
The link group has asymmetric links, i.e. the local system can offer one device port only for this link group, which means a link outage on the local side cannot be recovered.

The VLAN to which the link group belongs.

Number of connections(sockets) running on the link or link group.

PNET ID of the link group. Asterisk "*" means PNET ID is set by the user.

Network device name corresponding to the link.

The state of the link.

The link is not in use and in initial state.
The link is inactive and will go away.
The link is being activated with the peer.
The link is active and operates on an established link with the peer. Data is being exchanged via RDMA.

Unique identifier of the link. This identifier consists of link group id and link id.

Unique identifier of the link on the peer side. This identifier consists of link group id and link id.

Name of the RoCE device used by the link.

Port of the RoCE device used by the link.

GID of the RoCE port used by the link.

GID of the peer RoCE port used by the link.

1. Show all SMC-D link groups:
# smcd linkgroup show all

2. Show all SMC-D link groups with link group id 50:
# smcd linkgroup show 50

3. Show all SMC-R links:
# smcr linkgroup link-show all

4. Show all SMC-R links with link group ID 40:
# smcr linkgroup link-show 40

5. Show all SMC-R links on RoCE device "mlx4_0":
# smcr linkgroup link-show ibdev mlx4_0

6. Show all SMC-R links on network device "eth0":
# smcr linkgroup link-show netdev eth0

smcd(8), smcr(8)

June 2020 smc-tools