* [PATCH net-next v5 1/6] ethtool: add ETHTOOL_COALESCE_ALL_PARAMS define
2020-11-18 17:18 [PATCH net-next v5 0/6] netdevsim: add ethtool coalesce and ring settings Antonio Cardace
@ 2020-11-18 17:18 ` Antonio Cardace
2020-11-18 17:18 ` [PATCH net-next v5 2/6] netdevsim: move ethtool pause params in separate struct Antonio Cardace
` (4 subsequent siblings)
5 siblings, 0 replies; 8+ messages in thread
From: Antonio Cardace @ 2020-11-18 17:18 UTC (permalink / raw)
To: netdev, David S . Miller, Jakub Kicinski, Michal Kubecek
This bitmask represents all existing coalesce parameters.
Signed-off-by: Antonio Cardace <acardace@redhat.com>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
---
include/linux/ethtool.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 6408b446051f..e3da25b51ae4 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -215,6 +215,7 @@ bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
#define ETHTOOL_COALESCE_TX_USECS_HIGH BIT(19)
#define ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH BIT(20)
#define ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL BIT(21)
+#define ETHTOOL_COALESCE_ALL_PARAMS GENMASK(21, 0)
#define ETHTOOL_COALESCE_USECS \
(ETHTOOL_COALESCE_RX_USECS | ETHTOOL_COALESCE_TX_USECS)
--
2.28.0
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH net-next v5 2/6] netdevsim: move ethtool pause params in separate struct
2020-11-18 17:18 [PATCH net-next v5 0/6] netdevsim: add ethtool coalesce and ring settings Antonio Cardace
2020-11-18 17:18 ` [PATCH net-next v5 1/6] ethtool: add ETHTOOL_COALESCE_ALL_PARAMS define Antonio Cardace
@ 2020-11-18 17:18 ` Antonio Cardace
2020-11-18 17:18 ` [PATCH net-next v5 3/6] netdevsim: support ethtool ring and coalesce settings Antonio Cardace
` (3 subsequent siblings)
5 siblings, 0 replies; 8+ messages in thread
From: Antonio Cardace @ 2020-11-18 17:18 UTC (permalink / raw)
To: netdev, David S . Miller, Jakub Kicinski, Michal Kubecek
This will help the refactoring in the next commit
when coalesce and ring settings are added.
Signed-off-by: Antonio Cardace <acardace@redhat.com>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
---
drivers/net/netdevsim/ethtool.c | 14 +++++++-------
drivers/net/netdevsim/netdevsim.h | 6 +++++-
2 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/drivers/net/netdevsim/ethtool.c b/drivers/net/netdevsim/ethtool.c
index f1884d90a876..a1500f849203 100644
--- a/drivers/net/netdevsim/ethtool.c
+++ b/drivers/net/netdevsim/ethtool.c
@@ -13,9 +13,9 @@ nsim_get_pause_stats(struct net_device *dev,
{
struct netdevsim *ns = netdev_priv(dev);
- if (ns->ethtool.report_stats_rx)
+ if (ns->ethtool.pauseparam.report_stats_rx)
pause_stats->rx_pause_frames = 1;
- if (ns->ethtool.report_stats_tx)
+ if (ns->ethtool.pauseparam.report_stats_tx)
pause_stats->tx_pause_frames = 2;
}
@@ -25,8 +25,8 @@ nsim_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *pause)
struct netdevsim *ns = netdev_priv(dev);
pause->autoneg = 0; /* We don't support ksettings, so can't pretend */
- pause->rx_pause = ns->ethtool.rx;
- pause->tx_pause = ns->ethtool.tx;
+ pause->rx_pause = ns->ethtool.pauseparam.rx;
+ pause->tx_pause = ns->ethtool.pauseparam.tx;
}
static int
@@ -37,8 +37,8 @@ nsim_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *pause)
if (pause->autoneg)
return -EINVAL;
- ns->ethtool.rx = pause->rx_pause;
- ns->ethtool.tx = pause->tx_pause;
+ ns->ethtool.pauseparam.rx = pause->rx_pause;
+ ns->ethtool.pauseparam.tx = pause->tx_pause;
return 0;
}
@@ -58,7 +58,7 @@ void nsim_ethtool_init(struct netdevsim *ns)
dir = debugfs_create_dir("pause", ethtool);
debugfs_create_bool("report_stats_rx", 0600, dir,
- &ns->ethtool.report_stats_rx);
+ &ns->ethtool.pauseparam.report_stats_rx);
debugfs_create_bool("report_stats_tx", 0600, dir,
&ns->ethtool.report_stats_tx);
}
diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h
index 827fc80f50a0..4b3023e49094 100644
--- a/drivers/net/netdevsim/netdevsim.h
+++ b/drivers/net/netdevsim/netdevsim.h
@@ -51,13 +51,17 @@ struct nsim_ipsec {
u32 ok;
};
-struct nsim_ethtool {
+struct nsim_ethtool_pauseparam {
bool rx;
bool tx;
bool report_stats_rx;
bool report_stats_tx;
};
+struct nsim_ethtool {
+ struct nsim_ethtool_pauseparam pauseparam;
+};
+
struct netdevsim {
struct net_device *netdev;
struct nsim_dev *nsim_dev;
--
2.28.0
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH net-next v5 3/6] netdevsim: support ethtool ring and coalesce settings
2020-11-18 17:18 [PATCH net-next v5 0/6] netdevsim: add ethtool coalesce and ring settings Antonio Cardace
2020-11-18 17:18 ` [PATCH net-next v5 1/6] ethtool: add ETHTOOL_COALESCE_ALL_PARAMS define Antonio Cardace
2020-11-18 17:18 ` [PATCH net-next v5 2/6] netdevsim: move ethtool pause params in separate struct Antonio Cardace
@ 2020-11-18 17:18 ` Antonio Cardace
2020-11-18 17:39 ` Jakub Kicinski
2020-11-18 17:18 ` [PATCH net-next v5 4/6] selftests: extract common functions in ethtool-common.sh Antonio Cardace
` (2 subsequent siblings)
5 siblings, 1 reply; 8+ messages in thread
From: Antonio Cardace @ 2020-11-18 17:18 UTC (permalink / raw)
To: netdev, David S . Miller, Jakub Kicinski, Michal Kubecek
Add ethtool ring and coalesce settings support for testing.
Signed-off-by: Antonio Cardace <acardace@redhat.com>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
---
drivers/net/netdevsim/ethtool.c | 68 +++++++++++++++++++++++++++++--
drivers/net/netdevsim/netdevsim.h | 3 ++
2 files changed, 67 insertions(+), 4 deletions(-)
diff --git a/drivers/net/netdevsim/ethtool.c b/drivers/net/netdevsim/ethtool.c
index a1500f849203..166f0d6cbcf7 100644
--- a/drivers/net/netdevsim/ethtool.c
+++ b/drivers/net/netdevsim/ethtool.c
@@ -42,23 +42,83 @@ nsim_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *pause)
return 0;
}
+static int nsim_get_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *coal)
+{
+ struct netdevsim *ns = netdev_priv(dev);
+
+ memcpy(coal, &ns->ethtool.coalesce, sizeof(ns->ethtool.coalesce));
+ return 0;
+}
+
+static int nsim_set_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *coal)
+{
+ struct netdevsim *ns = netdev_priv(dev);
+
+ memcpy(&ns->ethtool.coalesce, coal, sizeof(ns->ethtool.coalesce));
+ return 0;
+}
+
+static void nsim_get_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *ring)
+{
+ struct netdevsim *ns = netdev_priv(dev);
+
+ memcpy(ring, &ns->ethtool.ring, sizeof(ns->ethtool.ring));
+}
+
+static int nsim_set_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *ring)
+{
+ struct netdevsim *ns = netdev_priv(dev);
+
+ memcpy(&ns->ethtool.ring, ring, sizeof(ns->ethtool.ring));
+ return 0;
+}
+
static const struct ethtool_ops nsim_ethtool_ops = {
- .get_pause_stats = nsim_get_pause_stats,
- .get_pauseparam = nsim_get_pauseparam,
- .set_pauseparam = nsim_set_pauseparam,
+ .supported_coalesce_params = ETHTOOL_COALESCE_ALL_PARAMS,
+ .get_pause_stats = nsim_get_pause_stats,
+ .get_pauseparam = nsim_get_pauseparam,
+ .set_pauseparam = nsim_set_pauseparam,
+ .set_coalesce = nsim_set_coalesce,
+ .get_coalesce = nsim_get_coalesce,
+ .get_ringparam = nsim_get_ringparam,
+ .set_ringparam = nsim_set_ringparam,
};
+static void nsim_ethtool_ring_init(struct netdevsim *ns)
+{
+ ns->ethtool.ring.rx_max_pending = 4096;
+ ns->ethtool.ring.rx_jumbo_max_pending = 4096;
+ ns->ethtool.ring.rx_mini_max_pending = 4096;
+ ns->ethtool.ring.tx_max_pending = 4096;
+}
+
void nsim_ethtool_init(struct netdevsim *ns)
{
struct dentry *ethtool, *dir;
ns->netdev->ethtool_ops = &nsim_ethtool_ops;
+ nsim_ethtool_ring_init(ns);
+
ethtool = debugfs_create_dir("ethtool", ns->nsim_dev_port->ddir);
dir = debugfs_create_dir("pause", ethtool);
debugfs_create_bool("report_stats_rx", 0600, dir,
&ns->ethtool.pauseparam.report_stats_rx);
debugfs_create_bool("report_stats_tx", 0600, dir,
- &ns->ethtool.report_stats_tx);
+ &ns->ethtool.pauseparam.report_stats_tx);
+
+ dir = debugfs_create_dir("ring", ethtool);
+ debugfs_create_u32("rx_max_pending", 0600, dir,
+ &ns->ethtool.ring.rx_max_pending);
+ debugfs_create_u32("rx_jumbo_max_pending", 0600, dir,
+ &ns->ethtool.ring.rx_jumbo_max_pending);
+ debugfs_create_u32("rx_mini_max_pending", 0600, dir,
+ &ns->ethtool.ring.rx_mini_max_pending);
+ debugfs_create_u32("tx_max_pending", 0600, dir,
+ &ns->ethtool.ring.tx_max_pending);
}
diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h
index 4b3023e49094..b023dc0a4259 100644
--- a/drivers/net/netdevsim/netdevsim.h
+++ b/drivers/net/netdevsim/netdevsim.h
@@ -15,6 +15,7 @@
#include <linux/debugfs.h>
#include <linux/device.h>
+#include <linux/ethtool.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/netdevice.h>
@@ -60,6 +61,8 @@ struct nsim_ethtool_pauseparam {
struct nsim_ethtool {
struct nsim_ethtool_pauseparam pauseparam;
+ struct ethtool_coalesce coalesce;
+ struct ethtool_ringparam ring;
};
struct netdevsim {
--
2.28.0
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH net-next v5 4/6] selftests: extract common functions in ethtool-common.sh
2020-11-18 17:18 [PATCH net-next v5 0/6] netdevsim: add ethtool coalesce and ring settings Antonio Cardace
` (2 preceding siblings ...)
2020-11-18 17:18 ` [PATCH net-next v5 3/6] netdevsim: support ethtool ring and coalesce settings Antonio Cardace
@ 2020-11-18 17:18 ` Antonio Cardace
2020-11-18 17:18 ` [PATCH net-next v5 5/6] selftests: refactor get_netdev_name function Antonio Cardace
2020-11-18 17:18 ` [PATCH net-next v5 6/6] selftests: add ring and coalesce selftests Antonio Cardace
5 siblings, 0 replies; 8+ messages in thread
From: Antonio Cardace @ 2020-11-18 17:18 UTC (permalink / raw)
To: netdev, David S . Miller, Jakub Kicinski, Michal Kubecek
Factor out some useful functions so that they can be reused
by other ethtool-netdevsim scripts.
Signed-off-by: Antonio Cardace <acardace@redhat.com>
---
.../drivers/net/netdevsim/ethtool-common.sh | 69 +++++++++++++++++++
.../drivers/net/netdevsim/ethtool-pause.sh | 63 +----------------
2 files changed, 71 insertions(+), 61 deletions(-)
create mode 100644 tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh
new file mode 100644
index 000000000000..fa44cf6e732c
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh
@@ -0,0 +1,69 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+NSIM_ID=$((RANDOM % 1024))
+NSIM_DEV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_ID
+NSIM_DEV_DFS=/sys/kernel/debug/netdevsim/netdevsim$NSIM_ID/ports/0
+NSIM_NETDEV=
+num_passes=0
+num_errors=0
+
+function cleanup_nsim {
+ if [ -e $NSIM_DEV_SYS ]; then
+ echo $NSIM_ID > /sys/bus/netdevsim/del_device
+ fi
+}
+
+function cleanup {
+ cleanup_nsim
+}
+
+trap cleanup EXIT
+
+function get_netdev_name {
+ local -n old=$1
+
+ new=$(ls /sys/class/net)
+
+ for netdev in $new; do
+ for check in $old; do
+ [ $netdev == $check ] && break
+ done
+
+ if [ $netdev != $check ]; then
+ echo $netdev
+ break
+ fi
+ done
+}
+
+function check {
+ local code=$1
+ local str=$2
+ local exp_str=$3
+
+ if [ $code -ne 0 ]; then
+ ((num_errors++))
+ return
+ fi
+
+ if [ "$str" != "$exp_str" ]; then
+ echo -e "Expected: '$exp_str', got '$str'"
+ ((num_errors++))
+ return
+ fi
+
+ ((num_passes++))
+}
+
+function make_netdev {
+ # Make a netdevsim
+ old_netdevs=$(ls /sys/class/net)
+
+ if ! $(lsmod | grep -q netdevsim); then
+ modprobe netdevsim
+ fi
+
+ echo $NSIM_ID > /sys/bus/netdevsim/new_device
+ echo `get_netdev_name old_netdevs`
+}
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-pause.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-pause.sh
index 25c896b9e2eb..b4a7abfe5454 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/ethtool-pause.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-pause.sh
@@ -1,60 +1,7 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0-only
-NSIM_ID=$((RANDOM % 1024))
-NSIM_DEV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_ID
-NSIM_DEV_DFS=/sys/kernel/debug/netdevsim/netdevsim$NSIM_ID/ports/0
-NSIM_NETDEV=
-num_passes=0
-num_errors=0
-
-function cleanup_nsim {
- if [ -e $NSIM_DEV_SYS ]; then
- echo $NSIM_ID > /sys/bus/netdevsim/del_device
- fi
-}
-
-function cleanup {
- cleanup_nsim
-}
-
-trap cleanup EXIT
-
-function get_netdev_name {
- local -n old=$1
-
- new=$(ls /sys/class/net)
-
- for netdev in $new; do
- for check in $old; do
- [ $netdev == $check ] && break
- done
-
- if [ $netdev != $check ]; then
- echo $netdev
- break
- fi
- done
-}
-
-function check {
- local code=$1
- local str=$2
- local exp_str=$3
-
- if [ $code -ne 0 ]; then
- ((num_errors++))
- return
- fi
-
- if [ "$str" != "$exp_str" ]; then
- echo -e "Expected: '$exp_str', got '$str'"
- ((num_errors++))
- return
- fi
-
- ((num_passes++))
-}
+source ethtool-common.sh
# Bail if ethtool is too old
if ! ethtool -h | grep include-stat 2>&1 >/dev/null; then
@@ -62,13 +9,7 @@ if ! ethtool -h | grep include-stat 2>&1 >/dev/null; then
exit 4
fi
-# Make a netdevsim
-old_netdevs=$(ls /sys/class/net)
-
-modprobe netdevsim
-echo $NSIM_ID > /sys/bus/netdevsim/new_device
-
-NSIM_NETDEV=`get_netdev_name old_netdevs`
+NSIM_NETDEV=$(make_netdev)
set -o pipefail
--
2.28.0
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH net-next v5 5/6] selftests: refactor get_netdev_name function
2020-11-18 17:18 [PATCH net-next v5 0/6] netdevsim: add ethtool coalesce and ring settings Antonio Cardace
` (3 preceding siblings ...)
2020-11-18 17:18 ` [PATCH net-next v5 4/6] selftests: extract common functions in ethtool-common.sh Antonio Cardace
@ 2020-11-18 17:18 ` Antonio Cardace
2020-11-18 17:18 ` [PATCH net-next v5 6/6] selftests: add ring and coalesce selftests Antonio Cardace
5 siblings, 0 replies; 8+ messages in thread
From: Antonio Cardace @ 2020-11-18 17:18 UTC (permalink / raw)
To: netdev, David S . Miller, Jakub Kicinski, Michal Kubecek
As pointed out by Michal Kubecek, getting the name
with the previous approach was racy, it's better
and easier to get the name of the device with this
patch's approach.
Essentialy the function doesn't need to exist
anymore as it's a simple 'ls' command.
Signed-off-by: Antonio Cardace <acardace@redhat.com>
---
v4 -> v5
- changed echo '$(ls /sys/bus/netdevsim/devices/netdevsim${NSIM_ID}/net/)'
to just 'ls /sys/bus/netdevsim/devices/netdevsim${NSIM_ID}/net/'
---
.../drivers/net/netdevsim/ethtool-common.sh | 20 ++-----------------
1 file changed, 2 insertions(+), 18 deletions(-)
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh
index fa44cf6e732c..9f64d5c7107b 100644
--- a/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh
@@ -20,23 +20,6 @@ function cleanup {
trap cleanup EXIT
-function get_netdev_name {
- local -n old=$1
-
- new=$(ls /sys/class/net)
-
- for netdev in $new; do
- for check in $old; do
- [ $netdev == $check ] && break
- done
-
- if [ $netdev != $check ]; then
- echo $netdev
- break
- fi
- done
-}
-
function check {
local code=$1
local str=$2
@@ -65,5 +48,6 @@ function make_netdev {
fi
echo $NSIM_ID > /sys/bus/netdevsim/new_device
- echo `get_netdev_name old_netdevs`
+ # get new device name
+ ls /sys/bus/netdevsim/devices/netdevsim${NSIM_ID}/net/
}
--
2.28.0
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH net-next v5 6/6] selftests: add ring and coalesce selftests
2020-11-18 17:18 [PATCH net-next v5 0/6] netdevsim: add ethtool coalesce and ring settings Antonio Cardace
` (4 preceding siblings ...)
2020-11-18 17:18 ` [PATCH net-next v5 5/6] selftests: refactor get_netdev_name function Antonio Cardace
@ 2020-11-18 17:18 ` Antonio Cardace
5 siblings, 0 replies; 8+ messages in thread
From: Antonio Cardace @ 2020-11-18 17:18 UTC (permalink / raw)
To: netdev, David S . Miller, Jakub Kicinski, Michal Kubecek
Add scripts to test ring and coalesce settings
of netdevsim.
Signed-off-by: Antonio Cardace <acardace@redhat.com>
---
.../drivers/net/netdevsim/ethtool-coalesce.sh | 132 ++++++++++++++++++
.../drivers/net/netdevsim/ethtool-ring.sh | 85 +++++++++++
2 files changed, 217 insertions(+)
create mode 100755 tools/testing/selftests/drivers/net/netdevsim/ethtool-coalesce.sh
create mode 100755 tools/testing/selftests/drivers/net/netdevsim/ethtool-ring.sh
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-coalesce.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-coalesce.sh
new file mode 100755
index 000000000000..9adfba8f87e6
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-coalesce.sh
@@ -0,0 +1,132 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+source ethtool-common.sh
+
+function get_value {
+ local query="${SETTINGS_MAP[$1]}"
+
+ echo $(ethtool -c $NSIM_NETDEV | \
+ awk -F':' -v pattern="$query:" '$0 ~ pattern {gsub(/[ \t]/, "", $2); print $2}')
+}
+
+function update_current_settings {
+ for key in ${!SETTINGS_MAP[@]}; do
+ CURRENT_SETTINGS[$key]=$(get_value $key)
+ done
+ echo ${CURRENT_SETTINGS[@]}
+}
+
+if ! ethtool -h | grep -q coalesce; then
+ echo "SKIP: No --coalesce support in ethtool"
+ exit 4
+fi
+
+NSIM_NETDEV=$(make_netdev)
+
+set -o pipefail
+
+declare -A SETTINGS_MAP=(
+ ["rx-frames-low"]="rx-frame-low"
+ ["tx-frames-low"]="tx-frame-low"
+ ["rx-frames-high"]="rx-frame-high"
+ ["tx-frames-high"]="tx-frame-high"
+ ["rx-usecs"]="rx-usecs"
+ ["rx-frames"]="rx-frames"
+ ["rx-usecs-irq"]="rx-usecs-irq"
+ ["rx-frames-irq"]="rx-frames-irq"
+ ["tx-usecs"]="tx-usecs"
+ ["tx-frames"]="tx-frames"
+ ["tx-usecs-irq"]="tx-usecs-irq"
+ ["tx-frames-irq"]="tx-frames-irq"
+ ["stats-block-usecs"]="stats-block-usecs"
+ ["pkt-rate-low"]="pkt-rate-low"
+ ["rx-usecs-low"]="rx-usecs-low"
+ ["tx-usecs-low"]="tx-usecs-low"
+ ["pkt-rate-high"]="pkt-rate-high"
+ ["rx-usecs-high"]="rx-usecs-high"
+ ["tx-usecs-high"]="tx-usecs-high"
+ ["sample-interval"]="sample-interval"
+)
+
+declare -A CURRENT_SETTINGS=(
+ ["rx-frames-low"]=""
+ ["tx-frames-low"]=""
+ ["rx-frames-high"]=""
+ ["tx-frames-high"]=""
+ ["rx-usecs"]=""
+ ["rx-frames"]=""
+ ["rx-usecs-irq"]=""
+ ["rx-frames-irq"]=""
+ ["tx-usecs"]=""
+ ["tx-frames"]=""
+ ["tx-usecs-irq"]=""
+ ["tx-frames-irq"]=""
+ ["stats-block-usecs"]=""
+ ["pkt-rate-low"]=""
+ ["rx-usecs-low"]=""
+ ["tx-usecs-low"]=""
+ ["pkt-rate-high"]=""
+ ["rx-usecs-high"]=""
+ ["tx-usecs-high"]=""
+ ["sample-interval"]=""
+)
+
+declare -A EXPECTED_SETTINGS=(
+ ["rx-frames-low"]=""
+ ["tx-frames-low"]=""
+ ["rx-frames-high"]=""
+ ["tx-frames-high"]=""
+ ["rx-usecs"]=""
+ ["rx-frames"]=""
+ ["rx-usecs-irq"]=""
+ ["rx-frames-irq"]=""
+ ["tx-usecs"]=""
+ ["tx-frames"]=""
+ ["tx-usecs-irq"]=""
+ ["tx-frames-irq"]=""
+ ["stats-block-usecs"]=""
+ ["pkt-rate-low"]=""
+ ["rx-usecs-low"]=""
+ ["tx-usecs-low"]=""
+ ["pkt-rate-high"]=""
+ ["rx-usecs-high"]=""
+ ["tx-usecs-high"]=""
+ ["sample-interval"]=""
+)
+
+# populate the expected settings map
+for key in ${!SETTINGS_MAP[@]}; do
+ EXPECTED_SETTINGS[$key]=$(get_value $key)
+done
+
+# test
+for key in ${!SETTINGS_MAP[@]}; do
+ value=$((RANDOM % $((2**32-1))))
+
+ ethtool -C $NSIM_NETDEV "$key" "$value"
+
+ EXPECTED_SETTINGS[$key]="$value"
+ expected=${EXPECTED_SETTINGS[@]}
+ current=$(update_current_settings)
+
+ check $? "$current" "$expected"
+ set +x
+done
+
+# bool settings which ethtool displays on the same line
+ethtool -C $NSIM_NETDEV adaptive-rx on
+s=$(ethtool -c $NSIM_NETDEV | grep -q "Adaptive RX: on TX: off")
+check $? "$s" ""
+
+ethtool -C $NSIM_NETDEV adaptive-tx on
+s=$(ethtool -c $NSIM_NETDEV | grep -q "Adaptive RX: on TX: on")
+check $? "$s" ""
+
+if [ $num_errors -eq 0 ]; then
+ echo "PASSED all $((num_passes)) checks"
+ exit 0
+else
+ echo "FAILED $num_errors/$((num_errors+num_passes)) checks"
+ exit 1
+fi
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-ring.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-ring.sh
new file mode 100755
index 000000000000..c969559ffa7a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-ring.sh
@@ -0,0 +1,85 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+source ethtool-common.sh
+
+function get_value {
+ local query="${SETTINGS_MAP[$1]}"
+
+ echo $(ethtool -g $NSIM_NETDEV | \
+ tail -n +$CURR_SETT_LINE | \
+ awk -F':' -v pattern="$query:" '$0 ~ pattern {gsub(/[\t ]/, "", $2); print $2}')
+}
+
+function update_current_settings {
+ for key in ${!SETTINGS_MAP[@]}; do
+ CURRENT_SETTINGS[$key]=$(get_value $key)
+ done
+ echo ${CURRENT_SETTINGS[@]}
+}
+
+if ! ethtool -h | grep -q set-ring >/dev/null; then
+ echo "SKIP: No --set-ring support in ethtool"
+ exit 4
+fi
+
+NSIM_NETDEV=$(make_netdev)
+
+set -o pipefail
+
+declare -A SETTINGS_MAP=(
+ ["rx"]="RX"
+ ["rx-mini"]="RX Mini"
+ ["rx-jumbo"]="RX Jumbo"
+ ["tx"]="TX"
+)
+
+declare -A EXPECTED_SETTINGS=(
+ ["rx"]=""
+ ["rx-mini"]=""
+ ["rx-jumbo"]=""
+ ["tx"]=""
+)
+
+declare -A CURRENT_SETTINGS=(
+ ["rx"]=""
+ ["rx-mini"]=""
+ ["rx-jumbo"]=""
+ ["tx"]=""
+)
+
+MAX_VALUE=$((RANDOM % $((2**32-1))))
+RING_MAX_LIST=$(ls $NSIM_DEV_DFS/ethtool/ring/)
+
+for ring_max_entry in $RING_MAX_LIST; do
+ echo $MAX_VALUE > $NSIM_DEV_DFS/ethtool/ring/$ring_max_entry
+done
+
+CURR_SETT_LINE=$(ethtool -g $NSIM_NETDEV | grep -i -m1 -n 'Current hardware settings' | cut -f1 -d:)
+
+# populate the expected settings map
+for key in ${!SETTINGS_MAP[@]}; do
+ EXPECTED_SETTINGS[$key]=$(get_value $key)
+done
+
+# test
+for key in ${!SETTINGS_MAP[@]}; do
+ value=$((RANDOM % $MAX_VALUE))
+
+ ethtool -G $NSIM_NETDEV "$key" "$value"
+
+ EXPECTED_SETTINGS[$key]="$value"
+ expected=${EXPECTED_SETTINGS[@]}
+ current=$(update_current_settings)
+
+ check $? "$current" "$expected"
+ set +x
+done
+
+if [ $num_errors -eq 0 ]; then
+ echo "PASSED all $((num_passes)) checks"
+ exit 0
+else
+ echo "FAILED $num_errors/$((num_errors+num_passes)) checks"
+ exit 1
+fi
--
2.28.0
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