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Message-Id: <20210221213355.1241450-2-olteanv@gmail.com>
Date: Sun, 21 Feb 2021 23:33:44 +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 01/12] Documentation: networking: update the graphical representation
From: Vladimir Oltean <vladimir.oltean@....com>
While preparing some slides for a customer presentation, I found the
existing high-level view to be a bit confusing, so I modified it a
little bit.
Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
Documentation/networking/dsa/dsa.rst | 45 +++++++++++++++++-----------
1 file changed, 28 insertions(+), 17 deletions(-)
diff --git a/Documentation/networking/dsa/dsa.rst b/Documentation/networking/dsa/dsa.rst
index e9517af5fe02..e20fbad2241a 100644
--- a/Documentation/networking/dsa/dsa.rst
+++ b/Documentation/networking/dsa/dsa.rst
@@ -172,23 +172,34 @@ Graphical representation
Summarized, this is basically how DSA looks like from a network device
perspective::
-
- |---------------------------
- | CPU network device (eth0)|
- ----------------------------
- | <tag added by switch |
- | |
- | |
- | tag added by CPU> |
- |--------------------------------------------|
- | Switch driver |
- |--------------------------------------------|
- || || ||
- |-------| |-------| |-------|
- | sw0p0 | | sw0p1 | | sw0p2 |
- |-------| |-------| |-------|
-
-
+ Unaware application
+ opens and binds socket
+ | ^
+ | |
+ +-----------v--|--------------------+
+ |+------+ +------+ +------+ +------+|
+ || swp0 | | swp1 | | swp2 | | swp3 ||
+ |+------+-+------+-+------+-+------+|
+ | DSA switch driver |
+ +-----------------------------------+
+ | ^
+ Tag added by | | Tag consumed by
+ switch driver | | switch driver
+ v |
+ +-----------------------------------+
+ | Unmodified host interface driver | Software
+ --------+-----------------------------------+------------
+ | Host interface (eth0) | Hardware
+ +-----------------------------------+
+ | ^
+ Tag consumed by | | Tag added by
+ switch hardware | | switch hardware
+ v |
+ +-----------------------------------+
+ | Switch |
+ |+------+ +------+ +------+ +------+|
+ || swp0 | | swp1 | | swp2 | | swp3 ||
+ ++------+-+------+-+------+-+------++
Slave MDIO bus
--------------
--
2.25.1
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