Re: [PATCH bpf-next v2 11/11] selftests/xsk: introduce XSKTEST_ETH environment variable

[Maciej Fijalkowski <maciej.fijalkowski@intel.com>]

On Thu, Aug 24, 2023 at 02:28:53PM +0200, Magnus Karlsson wrote:
> From: Magnus Karlsson <magnus.karlsson@intel.com>
> 
> Introduce the XSKTEST_ETH environment variable to be able to set the
> network interface that should be used for testing.
> 
> Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
> ---
>  tools/testing/selftests/bpf/test_xsk.sh | 20 +++++++++-----------
>  1 file changed, 9 insertions(+), 11 deletions(-)
> 
> diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh
> index 9ec718043c1a..3e0a2302a185 100755
> --- a/tools/testing/selftests/bpf/test_xsk.sh
> +++ b/tools/testing/selftests/bpf/test_xsk.sh
> @@ -88,14 +88,12 @@
>  
>  . xsk_prereqs.sh
>  
> -ETH=""
> -
>  while getopts "vi:dm:lt:h" flag
>  do
>  	case "${flag}" in
>  		v) verbose=1;;
>  		d) debug=1;;
> -		i) ETH=${OPTARG};;
> +		i) XSKTEST_ETH=${OPTARG};;
>  		m) XSKTEST_MODE=${OPTARG};;
>  		l) list=1;;
>  		t) XSKTEST_TEST=${OPTARG};;
> @@ -157,9 +155,9 @@ if [[ $help -eq 1 ]]; then
>          exit
>  fi
>  
> -if [ ! -z $ETH ]; then
> -	VETH0=${ETH}
> -	VETH1=${ETH}
> +if [ -n "$XSKTEST_ETH" ]; then

Sorry - is point of this patch is just to invert the logic and rename the
env var?

> +	VETH0=${XSKTEST_ETH}
> +	VETH1=${XSKTEST_ETH}
>  else
>  	validate_root_exec
>  	validate_veth_support ${VETH0}
> @@ -203,10 +201,10 @@ fi
>  
>  exec_xskxceiver
>  
> -if [ -z $ETH ]; then
> +if [ -z $XSKTEST_ETH ]; then
>  	cleanup_exit ${VETH0} ${VETH1}
>  else
> -	cleanup_iface ${ETH} ${MTU}
> +	cleanup_iface ${XSKTEST_ETH} ${MTU}
>  fi
>  
>  if [[ $list -eq 1 ]]; then
> @@ -216,17 +214,17 @@ fi
>  TEST_NAME="XSK_SELFTESTS_${VETH0}_BUSY_POLL"
>  busy_poll=1
>  
> -if [ -z $ETH ]; then
> +if [ -z $XSKTEST_ETH ]; then
>  	setup_vethPairs
>  fi
>  exec_xskxceiver
>  
>  ## END TESTS
>  
> -if [ -z $ETH ]; then
> +if [ -z $XSKTEST_ETH ]; then
>  	cleanup_exit ${VETH0} ${VETH1}
>  else
> -	cleanup_iface ${ETH} ${MTU}
> +	cleanup_iface ${XSKTEST_ETH} ${MTU}
>  fi
>  
>  failures=0
> -- 
> 2.34.1
>