diff options
| author | Eli Cohen <elic@nvidia.com> | 2022-11-14 15:17:59 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-02-20 19:26:54 -0500 |
| commit | 0a59975088d37f69815f656193c1e1e057feb494 (patch) | |
| tree | da988a3686ef752c039bc34dde0893c16e395e7d /drivers/vdpa/Kconfig | |
| parent | 2942210043224c0f6e88bd9d7c9c7c5949a36567 (diff) | |
vdpa/mlx5: Add RX counters to debugfs
For each interface, either VLAN tagged or untagged, add two hardware
counters: one for unicast and another for multicast. The counters count
RX packets and bytes and can be read through debugfs:
$ cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/untagged/mcast/packets
$ cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/untagged/ucast/bytes
This feature is controlled via the config option
MLX5_VDPA_STEERING_DEBUG. It is off by default as it may have some
impact on performance.
includes a fixup By Yang Yingliang <yangyingliang@huawei.com>:
vdpa/mlx5: fix check wrong pointer in mlx5_vdpa_add_mac_vlan_rules()
The local variable 'rule' is not used anymore, fix return value
check after calling mlx5_add_flow_rules().
Signed-off-by: Eli Cohen <elic@nvidia.com>
Message-Id: <20221114131759.57883-9-elic@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Message-Id: <20230104074418.1737510-1-yangyingliang@huawei.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Eli Cohen <elic@nvidia.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'drivers/vdpa/Kconfig')
| -rw-r--r-- | drivers/vdpa/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/vdpa/Kconfig b/drivers/vdpa/Kconfig index 50f45d037611..43b716ec2d18 100644 --- a/drivers/vdpa/Kconfig +++ b/drivers/vdpa/Kconfig @@ -71,6 +71,18 @@ config MLX5_VDPA_NET be executed by the hardware. It also supports a variety of stateless offloads depending on the actual device used and firmware version. +config MLX5_VDPA_STEERING_DEBUG + bool "expose steering counters on debugfs" + select MLX5_VDPA + help + Expose RX steering counters in debugfs to aid in debugging. For each VLAN + or non VLAN interface, two hardware counters are added to the RX flow + table: one for unicast and one for multicast. + The counters counts the number of packets and bytes and exposes them in + debugfs. Once can read the counters using, e.g.: + cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/untagged/ucast/packets + cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/untagged/mcast/bytes + config VP_VDPA tristate "Virtio PCI bridge vDPA driver" select VIRTIO_PCI_LIB |