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pktgen: Specify the index of first thread

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Use "-f <num>", to specify the index of the first
sender thread.
In default first thread is #0.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tariq Toukan
2017-06-15 19:07:22 +03:00
committed by David S. Miller
parent 69137ea60c
commit e0e16672ee
8 changed files with 27 additions and 18 deletions
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20
samples/pktgen/parameters.sh
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@@ -10,6 +10,7 @@ function usage() {
echo " -d : (\$DEST_IP) destination IP"
echo " -m : (\$DST_MAC) destination MAC-addr"
echo " -t : (\$THREADS) threads to start"
echo " -f : (\$F_THREAD) index of first thread (zero indexed CPU number)"
echo " -c : (\$SKB_CLONE) SKB clones send before alloc new SKB"
echo " -n : (\$COUNT) num messages to send per thread, 0 means indefinitely"
echo " -b : (\$BURST) HW level bursting of SKBs"
@@ -21,7 +22,7 @@ function usage() {
## --- Parse command line arguments / parameters ---
## echo "Commandline options:"
while getopts "s:i:d:m:t:c:n:b:vxh6" option; do
while getopts "s:i:d:m:f:t:c:n:b:vxh6" option; do
case $option in
i) # interface
export DEV=$OPTARG
@@ -39,11 +40,13 @@ while getopts "s:i:d:m:t:c:n:b:vxh6" option; do
export DST_MAC=$OPTARG
info "Destination MAC set to: DST_MAC=$DST_MAC"
;;
f)
export F_THREAD=$OPTARG
info "Index of first thread (zero indexed CPU number): $F_THREAD"
;;
t)
export THREADS=$OPTARG
export CPU_THREADS=$OPTARG
let "CPU_THREADS -= 1"
info "Number of threads to start: $THREADS (0 to $CPU_THREADS)"
info "Number of threads to start: $THREADS"
;;
c)
export CLONE_SKB=$OPTARG
@@ -82,12 +85,17 @@ if [ -z "$PKT_SIZE" ]; then
info "Default packet size set to: set to: $PKT_SIZE bytes"
fi
if [ -z "$F_THREAD" ]; then
# First thread (F_THREAD) reference the zero indexed CPU number
export F_THREAD=0
fi
if [ -z "$THREADS" ]; then
# Zero CPU threads means one thread, because CPU numbers are zero indexed
export CPU_THREADS=0
export THREADS=1
fi
export L_THREAD=$(( THREADS + F_THREAD - 1 ))
if [ -z "$DEV" ]; then
usage
err 2 "Please specify output device"