netdev - [RFC PATCH net-next 04/12] Documentation: networking: dsa: remove references to switchdev prepare/commit

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Date:   Sun, 21 Feb 2021 23:33:47 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     netdev@...r.kernel.org
Cc:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Jiri Pirko <jiri@...nulli.us>,
        Ido Schimmel <idosch@...sch.org>,
        DENG Qingfang <dqfext@...il.com>,
        Tobias Waldekranz <tobias@...dekranz.com>,
        George McCollister <george.mccollister@...il.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>,
        Kurt Kanzenbach <kurt@...utronix.de>
Subject: [RFC PATCH net-next 04/12] Documentation: networking: dsa: remove references to switchdev prepare/commit

From: Vladimir Oltean <vladimir.oltean@....com>

After the recent series containing commit bae33f2b5afe ("net: switchdev:
remove the transaction structure from port attributes"), there aren't
prepare/commit transactional phases anymore in most of the switchdev
objects/attributes, and as a result, there aren't any in the DSA driver
API either. So remove this piece.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
 Documentation/networking/dsa/dsa.rst | 30 ++++++++--------------------
 1 file changed, 8 insertions(+), 22 deletions(-)

diff --git a/Documentation/networking/dsa/dsa.rst b/Documentation/networking/dsa/dsa.rst
index cb59df6e80f4..8fb0ceff3418 100644
--- a/Documentation/networking/dsa/dsa.rst
+++ b/Documentation/networking/dsa/dsa.rst
@@ -430,14 +430,8 @@ SWITCHDEV
 
 DSA directly utilizes SWITCHDEV when interfacing with the bridge layer, and
 more specifically with its VLAN filtering portion when configuring VLANs on top
-of per-port slave network devices. Since DSA primarily deals with
-MDIO-connected switches, although not exclusively, SWITCHDEV's
-prepare/abort/commit phases are often simplified into a prepare phase which
-checks whether the operation is supported by the DSA switch driver, and a commit
-phase which applies the changes.
-
-As of today, the only SWITCHDEV objects supported by DSA are the FDB and VLAN
-objects.
+of per-port slave network devices. As of today, the only SWITCHDEV objects
+supported by DSA are the FDB and VLAN objects.
 
 Device Tree
 -----------
@@ -616,14 +610,10 @@ Bridge VLAN filtering
   accept any 802.1Q frames irrespective of their VLAN ID, and untagged frames are
   allowed.
 
-- ``port_vlan_prepare``: bridge layer function invoked when the bridge prepares the
-  configuration of a VLAN on the given port. If the operation is not supported
-  by the hardware, this function should return ``-EOPNOTSUPP`` to inform the bridge
-  code to fallback to a software implementation. No hardware setup must be done
-  in this function. See port_vlan_add for this and details.
-
 - ``port_vlan_add``: bridge layer function invoked when a VLAN is configured
-  (tagged or untagged) for the given switch port
+  (tagged or untagged) for the given switch port. If the operation is not
+  supported by the hardware, this function should return ``-EOPNOTSUPP`` to
+  inform the bridge code to fallback to a software implementation.
 
 - ``port_vlan_del``: bridge layer function invoked when a VLAN is removed from the
   given switch port
@@ -651,14 +641,10 @@ Bridge VLAN filtering
   function that the driver has to call for each MAC address known to be behind
   the given port. A switchdev object is used to carry the VID and FDB info.
 
-- ``port_mdb_prepare``: bridge layer function invoked when the bridge prepares the
-  installation of a multicast database entry. If the operation is not supported,
-  this function should return ``-EOPNOTSUPP`` to inform the bridge code to fallback
-  to a software implementation. No hardware setup must be done in this function.
-  See ``port_fdb_add`` for this and details.
-
 - ``port_mdb_add``: bridge layer function invoked when the bridge wants to install
-  a multicast database entry, the switch hardware should be programmed with the
+  a multicast database entry. If the operation is not supported, this function
+  should return ``-EOPNOTSUPP`` to inform the bridge code to fallback to a
+  software implementation. The switch hardware should be programmed with the
   specified address in the specified VLAN ID in the forwarding database
   associated with this VLAN ID.
 
-- 
2.25.1