diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2020-06-11 01:59:11 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-06-11 02:07:04 +0200 |
| commit | ae0b829df7120c78692e49c88453007e531c0e00 (patch) | |
| tree | c3720b7f38978a1e2d4bc1cdfbc86ea6e9911119 /Documentation/networking/devlink | |
| parent | Merge branch 'chcr-Fixing-issues-in-dma-mapping-and-driver-removal' (diff) | |
| download | linux-ae0b829df7120c78692e49c88453007e531c0e00.tar.xz linux-ae0b829df7120c78692e49c88453007e531c0e00.zip | |
docs: networkng: convert sja1105's devlink info to RTS
A new file snuck into the tree after all existing documentation
was converted to RST. Convert sja1105's devlink info and move
it where the rest of the drivers are documented.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking/devlink')
| -rw-r--r-- | Documentation/networking/devlink/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/networking/devlink/sja1105.rst | 49 |
2 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/networking/devlink/index.rst b/Documentation/networking/devlink/index.rst index c536db2cc0f9..7684ae5c4a4a 100644 --- a/Documentation/networking/devlink/index.rst +++ b/Documentation/networking/devlink/index.rst @@ -40,5 +40,6 @@ parameters, info versions, and other features it supports. mv88e6xxx netdevsim nfp + sja1105 qed ti-cpsw-switch diff --git a/Documentation/networking/devlink/sja1105.rst b/Documentation/networking/devlink/sja1105.rst new file mode 100644 index 000000000000..e2679c274085 --- /dev/null +++ b/Documentation/networking/devlink/sja1105.rst @@ -0,0 +1,49 @@ +.. SPDX-License-Identifier: GPL-2.0 + +======================= +sja1105 devlink support +======================= + +This document describes the devlink features implemented +by the ``sja1105`` device driver. + +Parameters +========== + +.. list-table:: Driver-specific parameters implemented + :widths: 5 5 5 85 + + * - Name + - Type + - Mode + - Description + * - ``best_effort_vlan_filtering`` + - Boolean + - runtime + - Allow plain ETH_P_8021Q headers to be used as DSA tags. + + Benefits: + + - Can terminate untagged traffic over switch net + devices even when enslaved to a bridge with + vlan_filtering=1. + - Can terminate VLAN-tagged traffic over switch net + devices even when enslaved to a bridge with + vlan_filtering=1, with some constraints (no more than + 7 non-pvid VLANs per user port). + - Can do QoS based on VLAN PCP and VLAN membership + admission control for autonomously forwarded frames + (regardless of whether they can be terminated on the + CPU or not). + + Drawbacks: + + - User cannot use VLANs in range 1024-3071. If the + switch receives frames with such VIDs, it will + misinterpret them as DSA tags. + - Switch uses Shared VLAN Learning (FDB lookup uses + only DMAC as key). + - When VLANs span cross-chip topologies, the total + number of permitted VLANs may be less than 7 per + port, due to a maximum number of 32 VLAN retagging + rules per switch. |