diff options
| author |   Steven <sluong@cisco.com> | 2018-12-12 16:01:28 -0800 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-12-17 08:35:02 +0000 |
| commit | 7bb27caf62f5fa942be68015aeb0543566d22371 (patch) | |
| tree | 0c6cc026e2bcea835e2c61f5b4640055cea46ef5 /src/plugins/vmxnet3/vmxnet3.c | |
| parent | 18f34a86a4904524f53fc2c3d9a68572f12b9ae7 (diff) | |
vmxnet3: support clear hardware interface counters
Add clear hardware interface counters callback for vmxnet3 device. We take a
snap shot of the statistics in the callback. For the show hardware command,
we display the delta between the current statistics and the last snapshot.
Change-Id: Ie1389d2141f519300f427fe6ff2fdf97fd9e9378
Signed-off-by: Steven <sluong@cisco.com>
Diffstat (limited to 'src/plugins/vmxnet3/vmxnet3.c')
| -rw-r--r-- | src/plugins/vmxnet3/vmxnet3.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/plugins/vmxnet3/vmxnet3.c b/src/plugins/vmxnet3/vmxnet3.c index 08d4d5cea52..a5a62e99fe5 100644 --- a/src/plugins/vmxnet3/vmxnet3.c +++ b/src/plugins/vmxnet3/vmxnet3.c @@ -97,6 +97,23 @@ vmxnet3_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index, node_index); } +static void +vmxnet3_clear_hw_interface_counters (u32 instance) +{ + vmxnet3_main_t *vmxm = &vmxnet3_main; + vmxnet3_device_t *vd = pool_elt_at_index (vmxm->devices, instance); + vmxnet3_queues *q = &vd->dma->queues; + + /* + * Set the "last_cleared_stats" to the current stats, so that + * things appear to clear from a display perspective. + */ + vmxnet3_reg_write (vd, 1, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS); + + clib_memcpy (&vd->tx_stats, &q->tx.stats, sizeof (vd->tx_stats)); + clib_memcpy (&vd->rx_stats, &q->rx.stats, sizeof (vd->rx_stats)); +} + static char *vmxnet3_tx_func_error_strings[] = { #define _(n,s) s, foreach_vmxnet3_tx_func_error @@ -110,6 +127,7 @@ VNET_DEVICE_CLASS (vmxnet3_device_class,) = .format_device = format_vmxnet3_device, .format_device_name = format_vmxnet3_device_name, .admin_up_down_function = vmxnet3_interface_admin_up_down, + .clear_counters = vmxnet3_clear_hw_interface_counters, .rx_mode_change_function = vmxnet3_interface_rx_mode_change, .rx_redirect_to_node = vmxnet3_set_interface_next_node, .tx_function_n_errors = VMXNET3_TX_N_ERROR, |