mbox series

[bpf-next,v3,0/8] Add a test for SHARED_UMEM feature

Message ID 20230927135241.2287547-1-tushar.vyavahare@intel.com (mailing list archive)
Headers show
Series Add a test for SHARED_UMEM feature | expand

Message

Tushar Vyavahare Sept. 27, 2023, 1:52 p.m. UTC
Implement a test for the SHARED_UMEM feature in this patch set and make
necessary changes/improvements. Ensure that the framework now supports
different streams for different sockets.

v2->v3
- Set the sock_num at the end of the while loop.
- Declare xsk at the top of the while loop.

v1->v2
- Remove generate_mac_addresses() and generate mac addresses based on
  the number of sockets in __test_spec_init() function. [Magnus]
- Update Makefile to include find_bit.c for compiling xskxceiver.
- Add bitmap_full() function to verify all bits are set to break the while loop
  in the receive_pkts() and send_pkts() functions.
- Replace __test_and_set_bit() function with __set_bit() function.
- Add single return check for wait_for_tx_completion() function call.

Patch series summary:

1: Move the packet stream from the ifobject struct to the xsk_socket_info
   struct to enable the use of different streams for different sockets
   This will facilitate the sending and receiving of data from multiple
   sockets simultaneously using the SHARED_XDP_UMEM feature.

   It gives flexibility of send/recive individual traffic on particular
   socket.

2: Rename the header file to a generic name so that it can be used by all
   future XDP programs.

3: Move the src_mac and dst_mac fields from the ifobject structure to the
   xsk_socket_info structure to achieve per-socket MAC address assignment.
   Require this in order to steer traffic to various sockets in subsequent
   patches.

4: Improve the receive_pkt() function to enable it to receive packets from
   multiple sockets. Define a sock_num variable to iterate through all the
   sockets in the Rx path. Add nb_valid_entries to check that all the
   expected number of packets are received.

5: The pkt_set() function no longer needs the umem parameter. This commit
   removes the umem parameter from the pkt_set() function.

6: Iterate over all the sockets in the send pkts function. Update
   send_pkts() to handle multiple sockets for sending packets.
   Multiple TX sockets are utilized alternately based on the batch size
   for improve packet transmission.

7: Modify xsk_update_xskmap() to accept the index as an argument, enabling
   the addition of multiple sockets to xskmap.

8: Add a new test for testing shared umem feature. This is accomplished by
   adding a new XDP program and using the multiple sockets. The new  XDP
   program redirects the packets based on the destination MAC address.

Tushar Vyavahare (8):
  selftests/xsk: move pkt_stream to the xsk_socket_info
  selftests/xsk: rename xsk_xdp_metadata.h to xsk_xdp_common.h
  selftests/xsk: move src_mac and dst_mac to the xsk_socket_info
  selftests/xsk: iterate over all the sockets in the receive pkts
    function
  selftests/xsk: remove unnecessary parameter from pkt_set() function
    call
  selftests/xsk: iterate over all the sockets in the send pkts function
  selftests/xsk: modify xsk_update_xskmap() to accept the index as an
    argument
  selftests/xsk: add a test for shared umem feature

 tools/testing/selftests/bpf/Makefile          |   4 +-
 .../selftests/bpf/progs/xsk_xdp_progs.c       |  22 +-
 tools/testing/selftests/bpf/xsk.c             |   3 +-
 tools/testing/selftests/bpf/xsk.h             |   2 +-
 tools/testing/selftests/bpf/xsk_xdp_common.h  |  12 +
 .../testing/selftests/bpf/xsk_xdp_metadata.h  |   5 -
 tools/testing/selftests/bpf/xskxceiver.c      | 513 +++++++++++-------
 tools/testing/selftests/bpf/xskxceiver.h      |  13 +-
 8 files changed, 363 insertions(+), 211 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/xsk_xdp_common.h
 delete mode 100644 tools/testing/selftests/bpf/xsk_xdp_metadata.h

Comments

Magnus Karlsson Oct. 4, 2023, 1:17 p.m. UTC | #1
On Wed, 27 Sept 2023 at 15:31, Tushar Vyavahare
<tushar.vyavahare@intel.com> wrote:
>
> Implement a test for the SHARED_UMEM feature in this patch set and make
> necessary changes/improvements. Ensure that the framework now supports
> different streams for different sockets.
>
> v2->v3
> - Set the sock_num at the end of the while loop.
> - Declare xsk at the top of the while loop.
>
> v1->v2
> - Remove generate_mac_addresses() and generate mac addresses based on
>   the number of sockets in __test_spec_init() function. [Magnus]
> - Update Makefile to include find_bit.c for compiling xskxceiver.
> - Add bitmap_full() function to verify all bits are set to break the while loop
>   in the receive_pkts() and send_pkts() functions.
> - Replace __test_and_set_bit() function with __set_bit() function.
> - Add single return check for wait_for_tx_completion() function call.
>
> Patch series summary:
>
> 1: Move the packet stream from the ifobject struct to the xsk_socket_info
>    struct to enable the use of different streams for different sockets
>    This will facilitate the sending and receiving of data from multiple
>    sockets simultaneously using the SHARED_XDP_UMEM feature.
>
>    It gives flexibility of send/recive individual traffic on particular
>    socket.
>
> 2: Rename the header file to a generic name so that it can be used by all
>    future XDP programs.
>
> 3: Move the src_mac and dst_mac fields from the ifobject structure to the
>    xsk_socket_info structure to achieve per-socket MAC address assignment.
>    Require this in order to steer traffic to various sockets in subsequent
>    patches.
>
> 4: Improve the receive_pkt() function to enable it to receive packets from
>    multiple sockets. Define a sock_num variable to iterate through all the
>    sockets in the Rx path. Add nb_valid_entries to check that all the
>    expected number of packets are received.
>
> 5: The pkt_set() function no longer needs the umem parameter. This commit
>    removes the umem parameter from the pkt_set() function.
>
> 6: Iterate over all the sockets in the send pkts function. Update
>    send_pkts() to handle multiple sockets for sending packets.
>    Multiple TX sockets are utilized alternately based on the batch size
>    for improve packet transmission.
>
> 7: Modify xsk_update_xskmap() to accept the index as an argument, enabling
>    the addition of multiple sockets to xskmap.
>
> 8: Add a new test for testing shared umem feature. This is accomplished by
>    adding a new XDP program and using the multiple sockets. The new  XDP
>    program redirects the packets based on the destination MAC address.

Thanks Tushar!

For the set:
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>

> Tushar Vyavahare (8):
>   selftests/xsk: move pkt_stream to the xsk_socket_info
>   selftests/xsk: rename xsk_xdp_metadata.h to xsk_xdp_common.h
>   selftests/xsk: move src_mac and dst_mac to the xsk_socket_info
>   selftests/xsk: iterate over all the sockets in the receive pkts
>     function
>   selftests/xsk: remove unnecessary parameter from pkt_set() function
>     call
>   selftests/xsk: iterate over all the sockets in the send pkts function
>   selftests/xsk: modify xsk_update_xskmap() to accept the index as an
>     argument
>   selftests/xsk: add a test for shared umem feature
>
>  tools/testing/selftests/bpf/Makefile          |   4 +-
>  .../selftests/bpf/progs/xsk_xdp_progs.c       |  22 +-
>  tools/testing/selftests/bpf/xsk.c             |   3 +-
>  tools/testing/selftests/bpf/xsk.h             |   2 +-
>  tools/testing/selftests/bpf/xsk_xdp_common.h  |  12 +
>  .../testing/selftests/bpf/xsk_xdp_metadata.h  |   5 -
>  tools/testing/selftests/bpf/xskxceiver.c      | 513 +++++++++++-------
>  tools/testing/selftests/bpf/xskxceiver.h      |  13 +-
>  8 files changed, 363 insertions(+), 211 deletions(-)
>  create mode 100644 tools/testing/selftests/bpf/xsk_xdp_common.h
>  delete mode 100644 tools/testing/selftests/bpf/xsk_xdp_metadata.h
>
> --
> 2.34.1
>
>
patchwork-bot+netdevbpf@kernel.org Oct. 4, 2023, 1:40 p.m. UTC | #2
Hello:

This series was applied to bpf/bpf-next.git (master)
by Daniel Borkmann <daniel@iogearbox.net>:

On Wed, 27 Sep 2023 19:22:33 +0530 you wrote:
> Implement a test for the SHARED_UMEM feature in this patch set and make
> necessary changes/improvements. Ensure that the framework now supports
> different streams for different sockets.
> 
> v2->v3
> - Set the sock_num at the end of the while loop.
> - Declare xsk at the top of the while loop.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v3,1/8] selftests/xsk: move pkt_stream to the xsk_socket_info
    https://git.kernel.org/bpf/bpf-next/c/8367eb954e24
  - [bpf-next,v3,2/8] selftests/xsk: rename xsk_xdp_metadata.h to xsk_xdp_common.h
    https://git.kernel.org/bpf/bpf-next/c/93ba11247907
  - [bpf-next,v3,3/8] selftests/xsk: move src_mac and dst_mac to the xsk_socket_info
    https://git.kernel.org/bpf/bpf-next/c/985fd2145a29
  - [bpf-next,v3,4/8] selftests/xsk: iterate over all the sockets in the receive pkts function
    https://git.kernel.org/bpf/bpf-next/c/8913e653e9b8
  - [bpf-next,v3,5/8] selftests/xsk: remove unnecessary parameter from pkt_set() function call
    https://git.kernel.org/bpf/bpf-next/c/46e43786cc60
  - [bpf-next,v3,6/8] selftests/xsk: iterate over all the sockets in the send pkts function
    https://git.kernel.org/bpf/bpf-next/c/fd0815ae9b8a
  - [bpf-next,v3,7/8] selftests/xsk: modify xsk_update_xskmap() to accept the index as an argument
    https://git.kernel.org/bpf/bpf-next/c/fc2cb86495da
  - [bpf-next,v3,8/8] selftests/xsk: add a test for shared umem feature
    https://git.kernel.org/bpf/bpf-next/c/6d198a89c004

You are awesome, thank you!