Re: [PATCH bpf-next v4] selftests: xsk: Update poll test cases

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On 8/10/22 3:08 PM, Maciej Fijalkowski wrote:
On Wed, Aug 03, 2022 at 02:43:54PM +0000, Shibin Koikkara Reeny wrote:
Poll test case was not testing all the functionality
of the poll feature in the testsuite. This patch
update the poll test case which contain 2 testcases to

updates, contains, test cases

test the RX and the TX poll functionality and additional
2 more testcases to check the timeout features of the

feature

poll event.

Poll testsuite have 4 test cases:

test suite, has


1. TEST_TYPE_RX_POLL:
Check if RX path POLLIN function work as expect. TX path

works

can use any method to sent the traffic.

send


2. TEST_TYPE_TX_POLL:
Check if TX path POLLOUT function work as expect. RX path
can use any method to receive the traffic.

3. TEST_TYPE_POLL_RXQ_EMPTY:
Call poll function with parameter POLLIN on empty rx queue
will cause timeout.If return timeout then test case is pass.

space after dot


4. TEST_TYPE_POLL_TXQ_FULL:
When txq is filled and packets are not cleaned by the kernel
then if we invoke the poll function with POLLOUT then it
should trigger timeout.

v1: https://lore.kernel.org/bpf/20220718095712.588513-1-shibin.koikkara.reeny@xxxxxxxxx/
v2: https://lore.kernel.org/bpf/20220726101723.250746-1-shibin.koikkara.reeny@xxxxxxxxx/
v3: https://lore.kernel.org/bpf/20220729132337.211443-1-shibin.koikkara.reeny@xxxxxxxxx/

Changes in v2:
  * Updated the commit message
  * fixed the while loop flow in receive_pkts function.
Changes in v3:
  * Introduced single thread validation function.
  * Removed pkt_stream_invalid().
  * Updated TEST_TYPE_POLL_TXQ_FULL testcase to create invalid frame.
  * Removed timer from send_pkts().
  * Removed boolean variable skip_rx and skip_tx.
Change in v4:
  * Added is_umem_valid()

for single patches, I believe that it's concerned a better practice to
include the versioning below the '---' line?


Signed-off-by: Shibin Koikkara Reeny <shibin.koikkara.reeny@xxxxxxxxx>
---
  tools/testing/selftests/bpf/xskxceiver.c | 166 +++++++++++++++++------
  tools/testing/selftests/bpf/xskxceiver.h |   8 +-
  2 files changed, 134 insertions(+), 40 deletions(-)

I don't think these grammar suggestions require a new revision, so:
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx>

I cleaned these up while applying. Shibin, please take care of this before sending
out next time, thanks guys!



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