pktgen: Specify the index of first thread
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>
diff --git a/samples/pktgen/README.rst b/samples/pktgen/README.rst
index c018d67d..ff8929d 100644
--- a/samples/pktgen/README.rst
+++ b/samples/pktgen/README.rst
@@ -21,6 +21,7 @@
-d : ($DEST_IP) destination IP
-m : ($DST_MAC) destination MAC-addr
-t : ($THREADS) threads to start
+ -f : ($F_THREAD) index of first thread (zero indexed CPU number)
-c : ($SKB_CLONE) SKB clones send before alloc new SKB
-n : ($COUNT) num messages to send per thread, 0 means indefinitely
-b : ($BURST) HW level bursting of SKBs
diff --git a/samples/pktgen/parameters.sh b/samples/pktgen/parameters.sh
index 0361475..3a6244d 100644
--- a/samples/pktgen/parameters.sh
+++ b/samples/pktgen/parameters.sh
@@ -10,6 +10,7 @@
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 @@
## --- 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 @@
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 @@
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"
diff --git a/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh b/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh
index d2694a1..e5bfe75 100755
--- a/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh
+++ b/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh
@@ -48,7 +48,7 @@
pg_ctrl "reset"
# Threads are specified with parameter -t value in $THREADS
-for ((thread = 0; thread < $THREADS; thread++)); do
+for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
# The device name is extended with @name, using thread number to
# make then unique, but any name will do.
dev=${DEV}@${thread}
@@ -81,7 +81,7 @@
echo "Done" >&2
# Print results
-for ((thread = 0; thread < $THREADS; thread++)); do
+for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
dev=${DEV}@${thread}
echo "Device: $dev"
cat /proc/net/pktgen/$dev | grep -A2 "Result:"
diff --git a/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh b/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh
index 43604c2..1ad878e 100755
--- a/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh
+++ b/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh
@@ -31,7 +31,7 @@
pg_ctrl "reset"
# Threads are specified with parameter -t value in $THREADS
-for ((thread = 0; thread < $THREADS; thread++)); do
+for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
# The device name is extended with @name, using thread number to
# make then unique, but any name will do.
dev=${DEV}@${thread}
@@ -61,7 +61,7 @@
echo "Done" >&2
# Print results
-for ((thread = 0; thread < $THREADS; thread++)); do
+for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
dev=${DEV}@${thread}
echo "Device: $dev"
cat /proc/net/pktgen/$dev | grep -A2 "Result:"
diff --git a/samples/pktgen/pktgen_sample02_multiqueue.sh b/samples/pktgen/pktgen_sample02_multiqueue.sh
index 164194d..cbdd3e2 100755
--- a/samples/pktgen/pktgen_sample02_multiqueue.sh
+++ b/samples/pktgen/pktgen_sample02_multiqueue.sh
@@ -33,7 +33,7 @@
pg_ctrl "reset"
# Threads are specified with parameter -t value in $THREADS
-for ((thread = 0; thread < $THREADS; thread++)); do
+for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
# The device name is extended with @name, using thread number to
# make then unique, but any name will do.
dev=${DEV}@${thread}
@@ -71,7 +71,7 @@
echo "Done" >&2
# Print results
-for ((thread = 0; thread < $THREADS; thread++)); do
+for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
dev=${DEV}@${thread}
echo "Device: $dev"
cat /proc/net/pktgen/$dev | grep -A2 "Result:"
diff --git a/samples/pktgen/pktgen_sample03_burst_single_flow.sh b/samples/pktgen/pktgen_sample03_burst_single_flow.sh
index e03dd4c..8d26e0c 100755
--- a/samples/pktgen/pktgen_sample03_burst_single_flow.sh
+++ b/samples/pktgen/pktgen_sample03_burst_single_flow.sh
@@ -40,7 +40,7 @@
pg_ctrl "reset"
# Threads are specified with parameter -t value in $THREADS
-for ((thread = 0; thread < $THREADS; thread++)); do
+for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
dev=${DEV}@${thread}
# Add remove all other devices and add_device $dev to thread
@@ -71,7 +71,7 @@
# Run if user hits control-c
function control_c() {
# Print results
- for ((thread = 0; thread < $THREADS; thread++)); do
+ for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
dev=${DEV}@${thread}
echo "Device: $dev"
cat /proc/net/pktgen/$dev | grep -A2 "Result:"
diff --git a/samples/pktgen/pktgen_sample04_many_flows.sh b/samples/pktgen/pktgen_sample04_many_flows.sh
index 0fc72d2..497fb75 100755
--- a/samples/pktgen/pktgen_sample04_many_flows.sh
+++ b/samples/pktgen/pktgen_sample04_many_flows.sh
@@ -36,7 +36,7 @@
pg_ctrl "reset"
# Threads are specified with parameter -t value in $THREADS
-for ((thread = 0; thread < $THREADS; thread++)); do
+for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
dev=${DEV}@${thread}
# Add remove all other devices and add_device $dev to thread
@@ -78,7 +78,7 @@
# Run if user hits control-c
function print_result() {
# Print results
- for ((thread = 0; thread < $THREADS; thread++)); do
+ for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
dev=${DEV}@${thread}
echo "Device: $dev"
cat /proc/net/pktgen/$dev | grep -A2 "Result:"
diff --git a/samples/pktgen/pktgen_sample05_flow_per_thread.sh b/samples/pktgen/pktgen_sample05_flow_per_thread.sh
index f4fb794..ac9cfd6 100755
--- a/samples/pktgen/pktgen_sample05_flow_per_thread.sh
+++ b/samples/pktgen/pktgen_sample05_flow_per_thread.sh
@@ -30,7 +30,7 @@
pg_ctrl "reset"
# Threads are specified with parameter -t value in $THREADS
-for ((thread = 0; thread < $THREADS; thread++)); do
+for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
dev=${DEV}@${thread}
# Add remove all other devices and add_device $dev to thread
@@ -66,7 +66,7 @@
# Run if user hits control-c
function print_result() {
# Print results
- for ((thread = 0; thread < $THREADS; thread++)); do
+ for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
dev=${DEV}@${thread}
echo "Device: $dev"
cat /proc/net/pktgen/$dev | grep -A2 "Result:"
