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

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

Documentation/networking/dsa/dsa.rst

+28 −17
Original line number Diff line number Diff line
@@ -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

--------------