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7f46a0b732
Lag state has become very complicated with many modes, flags, types and
port selections methods and future work will add additional features.
Add a debugfs to query the current lag state. A new directory named "lag"
will be created under the mlx5 debugfs directory. As the driver has
debugfs per pci function the location will be: <debugfs>/mlx5/<BDF>/lag
For example:
/sys/kernel/debug/mlx5/0000:08:00.0/lag
The following files are exposed:
- state: Returns "active" or "disabled". If "active" it means hardware
lag is active.
- members: Returns the BDFs of all the members of lag object.
- type: Returns the type of the lag currently configured. Valid only
if hardware lag is active.
* "roce" - Members are bare metal PFs.
* "switchdev" - Members are in switchdev mode.
* "multipath" - ECMP offloads.
- port_sel_mode: Returns the egress port selection method, valid
only if hardware lag is active.
* "queue_affinity" - Egress port is selected by
the QP/SQ affinity.
* "hash" - Egress port is selected by hash done on
each packet. Controlled by: xmit_hash_policy of the
bond device.
- flags: Returns flags that are specific per lag @type. Valid only if
hardware lag is active.
* "shared_fdb" - "on" or "off", if "on" single FDB is used.
- mapping: Returns the mapping which is used to select egress port.
Valid only if hardware lag is active.
If @port_sel_mode is "hash" returns the active egress ports.
The hash result will select only active ports.
if @port_sel_mode is "queue_affinity" returns the mapping
between the configured port affinity of the QP/SQ and actual
egress port. For example:
* 1:1 - Mapping means if the configured affinity is port 1
traffic will egress via port 1.
* 1:2 - Mapping means if the configured affinity is port 1
traffic will egress via port 2. This can happen
if port 1 is down or in active/backup mode and port 1
is backup.
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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|---|---|---|
| .. | ||
| cq.h | ||
| device.h | ||
| doorbell.h | ||
| driver.h | ||
| eq.h | ||
| eswitch.h | ||
| fs.h | ||
| fs_helpers.h | ||
| mlx5_ifc.h | ||
| mlx5_ifc_fpga.h | ||
| mlx5_ifc_vdpa.h | ||
| mpfs.h | ||
| port.h | ||
| qp.h | ||
| rsc_dump.h | ||
| transobj.h | ||
| vport.h | ||