Commit 0f455371 authored by Vladimir Oltean's avatar Vladimir Oltean Committed by David S. Miller

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: default avatarVladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Reviewed-by: default avatarTobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 52280f60
......@@ -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 |
| |
Unaware application
opens and binds socket
| ^
| |
| tag added by CPU> |
|--------------------------------------------|
| Switch driver |
|--------------------------------------------|
|| || ||
|-------| |-------| |-------|
| sw0p0 | | sw0p1 | | sw0p2 |
|-------| |-------| |-------|
+-----------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
--------------
......
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