]> git.baikalelectronics.ru Git - kernel.git/commit
Merge branch 'hnx3-vf'
authorDavid S. Miller <davem@davemloft.net>
Fri, 15 Dec 2017 15:55:35 +0000 (10:55 -0500)
committerDavid S. Miller <davem@davemloft.net>
Fri, 15 Dec 2017 15:55:35 +0000 (10:55 -0500)
commitb8884c438404601c0917bb011e0ad962551a7693
tree803ed38bcb2eccb6ac5c929029d3914b4ac659d6
parente8e7443885ba1e2a9a6dcadea47845b2adf20eb8
parentcb24fbe735a672e2e367345e1103b1a8386382d4
Merge branch 'hnx3-vf'

Salil Mehta says:

====================
Hisilicon Network Subsystem 3 VF Ethernet Driver

This patch-set contains the support of the HNS3 (Hisilicon Network Subsystem 3)
Virtual Function Ethernet driver for hip08 family of SoCs. The Physical Function
driver is already part of the Linux mainline.

This VF driver has its Hardware Compatibility Layer and has commom/unified ENET
layer/client/ethtool code with the PF driver. It also has support of mailbox to
communicate with the HNS3 PF driver. The basic architecture of VF driver is
derivative of the PF driver. Just like PF driver, this driver is also PCI
Express based.

This driver is the ongoing development work and HNS3 VF Ethernet driver would be
incrementally enhanced with more new features.

High Level Architecture:

                     [ Ethtool ]
                 |
                 [ Ethernet Client ] ... [ RoCE Client ]
                         |                     |
                   [ HNAE Device ]             |________
                         |                     |       |
    ---------------------------------------------      |
                                                       |
     [ HNAE3 Framework (Register/unregister) ]         |
                                                       |
    ---------------------------------------------      |
                         |                             |
                 [ VF HCLGE Layer ]                    |
                  |             |                      |
                  |             |                      |
                  |             |                      |
                  |     [ VF Mailbox (To PF via IMP) ] |
                  |             |                      |
             [ IMP command Interface ]  [ IMP command Interface ]
                        |                              |
                        |                              |
           (A B O V E  R U N S  O N  G U E S T  S Y S T E M)
    -------------------------------------------------------------
              Q E M U / V F I O / K V M (on Host System)
    -------------------------------------------------------------
            HIP08  H A R D W A R E (limited to VF by SMMU)

   [ IMP/Mgmt Processor (hardware common to system/cmd based) ]

                Fig 1.   HNS3 Virtual Function Driver

     [ dcbnl ]  [ Ethtool ]
            |          |
    [  Ethernet Client  ]  [ ODP/UIO Client ] . . .[ RoCE Client ]
              |_____________________|                 |
                         |                   _________|
                   [ HNAE Device ]           |        |
                         |                   |        |
    ---------------------------------------------     |
                                                      |
     [ HNAE3 Framework (Register/unregister) ]        |
                                                      |
    ---------------------------------------------     |
                         |                            |
                  [ HCLGE Layer ]                     |
         ________________|_________________           |
        |                |                 |          |
     [ DCB ]             |                 |          |
        |                |                 |          |
  [ Scheduler/Shaper ] [ MDIO ]      [ PF Mailbox ]   |
        |                |                 |          |
        |________________|_________________|          |
                         |                            |
             [ IMP command Interface ]     [ IMP command Interface ]
    ----------------------------------------------------------------
              HIP08  H A R D W A R E

  [ IMP/Mgmt Processor (hardware common to system/cmd based) ]

               Fig 2.    Existing HNS3 PF Driver (added with mailbox)

Change Log Summary:
Patch V4: Addressed SPDX related comment by Philippe Ombredanne
Patch V3: Addressed SPDX change requested by Philippe Ombredanne
Patch V2: 1. Addressed some comments by David Miller.
  2. Addressed some internal comments on various patches
Patch V1: Initial Submit
====================

Acked-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>