openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Vladimir Oltean 2021-03-16 13:24:08 +02:00 committed by David S. Miller
parent 52280f60c9
commit 0f45537105
1 changed files with 28 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
Documentation/networking/dsa/dsa.rst
View File

@ -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
--------------