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selftests/xsk: xsk selftests #281

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wants to merge 6 commits into from
Closed

selftests/xsk: xsk selftests #281

wants to merge 6 commits into from

Commits on Nov 2, 2020

  1. adding ci files

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  2. selftests/xsk: xsk selftests framework 

    This patch adds AF_XDP selftests framework under selftests/xsk.

Prerequisites setup by script TEST_PREREQUISITES.sh:

   Set up veth interfaces as per the topology shown in README:
   * setup two veth interfaces and one namespace
   ** veth<xxxx> in root namespace
   ** veth<yyyy> in af_xdp<xxxx> namespace
   ** namespace af_xdp<xxxx>
   * create a spec file veth.spec that includes this run-time configuration
     that is read by test scripts - filenames prefixed with TEST_XSK
   *** xxxx and yyyy are randomly generated 4 digit numbers used to avoid
       conflict with any existing interface

Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com>
    @weqaar @kernel-patches-bot
    weqaar authored and kernel-patches-bot committed Nov 2, 2020
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  3. selftests/xsk: xsk selftests - SKB POLL, NOPOLL 

    Adds following tests:

1. AF_XDP SKB mode
   Generic mode XDP is driver independent, used when the driver does
   not have support for XDP. Works on any netdevice using sockets and
   generic XDP path. XDP hook from netif_receive_skb().
   a. nopoll - soft-irq processing
   b. poll - using poll() syscall

Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com>
    @weqaar @kernel-patches-bot
    weqaar authored and kernel-patches-bot committed Nov 2, 2020
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  4. selftests/xsk: xsk selftests - DRV POLL, NOPOLL 

    Adds following tests:

2. AF_XDP DRV/Native mode
   Works on any netdevice with XDP_REDIRECT support, driver dependent.
   Processes packets before SKB allocation. Provides better performance
   than SKB. Driver hook available just after DMA of buffer descriptor.
   a. nopoll
   b. poll
   * Only copy mode is supported because veth does not currently support
     zero-copy mode

Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com>
    @weqaar @kernel-patches-bot
    weqaar authored and kernel-patches-bot committed Nov 2, 2020
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  5. selftests/xsk: xsk selftests - Socket Teardown - SKB, DRV 

    Adds following tests:

1. AF_XDP SKB mode
   c. Socket Teardown
      Create a Tx and a Rx socket, Tx from one socket, Rx on another.
      Destroy both sockets, then repeat multiple times. Only nopoll mode
      is used

2. AF_XDP DRV/Native mode
   c. Socket Teardown
   * Only copy mode is supported because veth does not currently support
     zero-copy mode

Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com>
    @weqaar @kernel-patches-bot
    weqaar authored and kernel-patches-bot committed Nov 2, 2020
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  6. selftests/xsk: xsk selftests - Bi-directional Sockets - SKB, DRV 

    Adds following tests:

1. AF_XDP SKB mode
   d. Bi-directional Sockets
      Configure sockets as bi-directional tx/rx sockets, sets up fill
      and completion rings on each socket, tx/rx in both directions.
      Only nopoll mode is used

2. AF_XDP DRV/Native mode
   d. Bi-directional Sockets
   * Only copy mode is supported because veth does not currently support
     zero-copy mode

Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com>
    @weqaar @kernel-patches-bot
    weqaar authored and kernel-patches-bot committed Nov 2, 2020
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