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authorSteven <sluong@cisco.com>2018-09-18 12:34:59 -0700
committerDamjan Marion <dmarion@me.com>2018-09-18 22:50:21 +0000
commit33e6583e541ab411ff91dc6e991e1b852e39b520 (patch)
tree85ce37466fad0f3045e5986d0be3046e7e43d595 /src
parent45e1cd92cadf15dd3ce84ff28feb8f70aff0a1e0 (diff)
vmxnet3: add support for "non-default" next node
Support feature arc Support set interface next node Enqueue packet to either ip4, ip6, or ethernet_input based on packet type Change-Id: I11fb6bba98ee0bfa1d057474fc6cf3be48ef1c48 Signed-off-by: Steven <sluong@cisco.com>
Diffstat (limited to 'src')
-rw-r--r--src/plugins/vmxnet3/input.c55
-rw-r--r--src/plugins/vmxnet3/vmxnet3.c21
-rw-r--r--src/plugins/vmxnet3/vmxnet3.h2
3 files changed, 76 insertions, 2 deletions
diff --git a/src/plugins/vmxnet3/input.c b/src/plugins/vmxnet3/input.c
index a5a5d2f43b8..0ae52ca07b8 100644
--- a/src/plugins/vmxnet3/input.c
+++ b/src/plugins/vmxnet3/input.c
@@ -88,6 +88,8 @@ vmxnet3_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vmxnet3_rx_comp_ring *comp_ring;
u16 rid;
vlib_buffer_t *prev_b0 = 0, *hb = 0;
+ u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
+ u8 known_next = 0;
rxq = vec_elt_at_index (vd->rxqs, qid);
comp_ring = &rxq->rx_comp_ring;
@@ -123,12 +125,14 @@ vmxnet3_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
b0 = vlib_get_buffer (vm, bi[0]);
vnet_buffer (b0)->sw_if_index[VLIB_RX] = vd->sw_if_index;
vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
+ vnet_buffer (b0)->feature_arc_index = 0;
b0->current_length = rx_comp->len & VMXNET3_RXCL_LEN_MASK;
b0->current_data = 0;
b0->total_length_not_including_first_buffer = 0;
b0->next_buffer = 0;
b0->flags = 0;
b0->error = 0;
+ b0->current_config_index = 0;
ASSERT (b0->current_length != 0);
if (rx_comp->index & VMXNET3_RXCI_SOP)
@@ -148,7 +152,6 @@ vmxnet3_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
*/
prev_b0 = 0;
}
-
}
else if (rx_comp->index & VMXNET3_RXCI_EOP)
{
@@ -190,7 +193,55 @@ vmxnet3_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
if (!prev_b0)
{
- next[0] = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
+ ethernet_header_t *e = (ethernet_header_t *) hb->data;
+
+ if (PREDICT_FALSE (vd->per_interface_next_index != ~0))
+ {
+ next_index = vd->per_interface_next_index;
+ known_next = 1;
+ }
+
+ if (PREDICT_FALSE
+ (vnet_device_input_have_features (vd->sw_if_index)))
+ {
+ vnet_feature_start_device_input_x1 (vd->sw_if_index,
+ &next_index, hb);
+ known_next = 1;
+ }
+
+ if (PREDICT_FALSE (known_next))
+ {
+ next[0] = next_index;
+ }
+ else
+ {
+ if (ethernet_frame_is_tagged (e->type))
+ next[0] = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
+ else
+ {
+ if (rx_comp->flags & VMXNET3_RXCF_IP4)
+ {
+ next[0] = VNET_DEVICE_INPUT_NEXT_IP4_NCS_INPUT;
+ hb->flags |= VNET_BUFFER_F_IS_IP4;
+ vlib_buffer_advance (hb,
+ device_input_next_node_advance
+ [next[0]]);
+ }
+ else if (rx_comp->flags & VMXNET3_RXCF_IP6)
+ {
+ next[0] = VNET_DEVICE_INPUT_NEXT_IP6_INPUT;
+ hb->flags |= VNET_BUFFER_F_IS_IP6;
+ vlib_buffer_advance (hb,
+ device_input_next_node_advance
+ [next[0]]);
+ }
+ else
+ {
+ next[0] = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
+ }
+ }
+ }
+
n_rx_packets++;
next++;
hb = 0;
diff --git a/src/plugins/vmxnet3/vmxnet3.c b/src/plugins/vmxnet3/vmxnet3.c
index 74ef12619d2..74e600304a7 100644
--- a/src/plugins/vmxnet3/vmxnet3.c
+++ b/src/plugins/vmxnet3/vmxnet3.c
@@ -77,6 +77,26 @@ vmxnet3_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
return 0;
}
+static void
+vmxnet3_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
+ u32 node_index)
+{
+ vmxnet3_main_t *vmxm = &vmxnet3_main;
+ vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
+ vmxnet3_device_t *vd = pool_elt_at_index (vmxm->devices, hw->dev_instance);
+
+ /* Shut off redirection */
+ if (node_index == ~0)
+ {
+ vd->per_interface_next_index = node_index;
+ return;
+ }
+
+ vd->per_interface_next_index =
+ vlib_node_add_next (vlib_get_main (), vmxnet3_input_node.index,
+ node_index);
+}
+
static char *vmxnet3_tx_func_error_strings[] = {
#define _(n,s) s,
foreach_vmxnet3_tx_func_error
@@ -91,6 +111,7 @@ VNET_DEVICE_CLASS (vmxnet3_device_class,) =
.format_device_name = format_vmxnet3_device_name,
.admin_up_down_function = vmxnet3_interface_admin_up_down,
.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,
.tx_function_error_strings = vmxnet3_tx_func_error_strings,
};
diff --git a/src/plugins/vmxnet3/vmxnet3.h b/src/plugins/vmxnet3/vmxnet3.h
index 13799407d1e..666dec77b38 100644
--- a/src/plugins/vmxnet3/vmxnet3.h
+++ b/src/plugins/vmxnet3/vmxnet3.h
@@ -66,6 +66,8 @@ enum
#define VMXNET3_RXF_BTYPE (1 << 14) /* rx body buffer type */
#define VMXNET3_RXF_GEN (1 << 31) /* rx generation */
+#define VMXNET3_RXCF_IP6 (1 << 20) /* rx ip6 packet */
+#define VMXNET3_RXCF_IP4 (1 << 21) /* rx ip4 packet */
#define VMXNET3_RXCF_GEN (1 << 31) /* rx completion generation */
#define VMXNET3_RXC_INDEX (0xFFF) /* rx completion index mask */