netdev - [net-next 10/15] net/mlx5: Document support for RoCE HCA disablement capability

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Message-Id: <20230204100854.388126-11-saeed@kernel.org>
Date:   Sat,  4 Feb 2023 02:08:49 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>
Cc:     Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>,
        Rahul Rameshbabu <rrameshbabu@...dia.com>,
        Shay Drory <shayd@...dia.com>
Subject: [net-next 10/15] net/mlx5: Document support for RoCE HCA disablement capability

From: Rahul Rameshbabu <rrameshbabu@...dia.com>

Some mlx5 devices are capable of disabling RoCE. In this situation,
disablement does not need to be handled at the driver level.

Signed-off-by: Rahul Rameshbabu <rrameshbabu@...dia.com>
Reviewed-by: Shay Drory <shayd@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 .../device_drivers/ethernet/mellanox/mlx5/devlink.rst     | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst
index eca7ac0334c5..9b5c40ba7f0d 100644
--- a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst
+++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst
@@ -66,10 +66,12 @@ User command examples:
 
 enable_roce: RoCE enablement state
 ----------------------------------
-RoCE enablement state controls driver support for RoCE traffic.
-When RoCE is disabled, there is no gid table, only raw ethernet QPs are supported and traffic on the well-known UDP RoCE port is handled as raw ethernet traffic.
+If the device supports RoCE disablement, RoCE enablement state controls device
+support for RoCE capability. Otherwise, the control occurs in the driver stack.
+When RoCE is disabled at the driver level, only raw ethernet QPs are supported.
 
-To change RoCE enablement state, a user must change the driverinit cmode value and run devlink reload.
+To change RoCE enablement state, a user must change the driverinit cmode value
+and run devlink reload.
 
 User command examples:
 
-- 
2.39.1