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authorVladimir Oltean <vladimir.oltean@nxp.com>2021-03-16 13:24:08 +0200
committerDavid S. Miller <davem@davemloft.net>2021-03-16 15:13:44 -0700
commit0f455371054bd40a69199868af99b80d1f3c4796 (patch)
tree8e8b1572a60e128e5b1a0011ed2ec7bd655db3bf /Documentation/networking
parent52280f60c9b6e25b00d43f576690e43baf724d09 (diff)
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 <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Tobias Waldekranz <tobias@waldekranz.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
-rw-r--r--Documentation/networking/dsa/dsa.rst45
1 files 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
--------------