From 0f455371054bd40a69199868af99b80d1f3c4796 Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Tue, 16 Mar 2021 13:24:08 +0200 Subject: [PATCH] Documentation: networking: update the graphical representation 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 Reviewed-by: Florian Fainelli Reviewed-by: Tobias Waldekranz Signed-off-by: David S. Miller --- 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)| - ---------------------------- - | | - |--------------------------------------------| - | 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 --------------