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Diffstat (limited to 'vnet/vnet/ethernet/mac_swap.c')
-rw-r--r--vnet/vnet/ethernet/mac_swap.c415
1 files changed, 216 insertions, 199 deletions
diff --git a/vnet/vnet/ethernet/mac_swap.c b/vnet/vnet/ethernet/mac_swap.c
index f3949390521..34dfdf7e09e 100644
--- a/vnet/vnet/ethernet/mac_swap.c
+++ b/vnet/vnet/ethernet/mac_swap.c
@@ -20,19 +20,21 @@
#include <vnet/devices/pci/ixge.h>
#include <vnet/devices/pci/ixgev.h>
-typedef struct {
+typedef struct
+{
u32 cached_next_index;
u32 cached_sw_if_index;
/* Hash table to map sw_if_index to next node index */
- uword * next_node_index_by_sw_if_index;
+ uword *next_node_index_by_sw_if_index;
/* convenience */
- vlib_main_t * vlib_main;
- vnet_main_t * vnet_main;
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
} mac_swap_main_t;
-typedef struct {
+typedef struct
+{
u8 src[6];
u8 dst[6];
u32 sw_if_index;
@@ -40,17 +42,16 @@ typedef struct {
} swap_trace_t;
/* packet trace format function */
-static u8 * format_swap_trace (u8 * s, va_list * args)
+static u8 *
+format_swap_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- swap_trace_t * t = va_arg (*args, swap_trace_t *);
-
+ swap_trace_t *t = va_arg (*args, swap_trace_t *);
+
s = format (s, "SWAP: dst now %U src now %U sw_if_index %d next_index %d",
- format_ethernet_address, t->dst,
- format_ethernet_address, t->src,
- t->sw_if_index,
- t->next_index);
+ format_ethernet_address, t->dst,
+ format_ethernet_address, t->src, t->sw_if_index, t->next_index);
return s;
}
@@ -66,14 +67,15 @@ static vlib_node_registration_t mac_swap_node;
#define foreach_mac_swap_error \
_(SWAPS, "mac addresses swapped")
-typedef enum {
+typedef enum
+{
#define _(sym,str) MAC_SWAP_ERROR_##sym,
foreach_mac_swap_error
#undef _
- MAC_SWAP_N_ERROR,
+ MAC_SWAP_N_ERROR,
} mac_swap_error_t;
-static char * mac_swap_error_strings[] = {
+static char *mac_swap_error_strings[] = {
#define _(sym,string) string,
foreach_mac_swap_error
#undef _
@@ -94,22 +96,22 @@ static char * mac_swap_error_strings[] = {
*
*/
-typedef enum {
+typedef enum
+{
MAC_SWAP_NEXT_DROP,
MAC_SWAP_N_NEXT,
} mac_swap_next_t;
static uword
mac_swap_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- u32 n_left_from, * from, * to_next;
+ u32 n_left_from, *from, *to_next;
mac_swap_next_t next_index;
- mac_swap_main_t * msm = &mac_swap_main;
+ mac_swap_main_t *msm = &mac_swap_main;
vlib_node_t *n = vlib_get_node (vm, mac_swap_node.index);
u32 node_counter_base_index = n->error_heap_index;
- vlib_error_main_t * em = &vm->error_main;
+ vlib_error_main_t *em = &vm->error_main;
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
@@ -119,28 +121,27 @@ mac_swap_node_fn (vlib_main_t * vm,
{
u32 n_left_to_next;
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
while (n_left_from >= 4 && n_left_to_next >= 2)
{
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
- u32 next0, next1;
- u32 sw_if_index0, sw_if_index1;
- uword * p0, * p1;
- u64 tmp0a, tmp0b;
- u64 tmp1a, tmp1b;
- ethernet_header_t * h0, *h1;
-
-
+ u32 bi0, bi1;
+ vlib_buffer_t *b0, *b1;
+ u32 next0, next1;
+ u32 sw_if_index0, sw_if_index1;
+ uword *p0, *p1;
+ u64 tmp0a, tmp0b;
+ u64 tmp1a, tmp1b;
+ ethernet_header_t *h0, *h1;
+
+
/* Prefetch next iteration. */
{
- vlib_buffer_t * p2, * p3;
-
+ vlib_buffer_t *p2, *p3;
+
p2 = vlib_get_buffer (vm, from[2]);
p3 = vlib_get_buffer (vm, from[3]);
-
+
vlib_prefetch_buffer_header (p2, LOAD);
vlib_prefetch_buffer_header (p3, LOAD);
@@ -158,112 +159,116 @@ mac_swap_node_fn (vlib_main_t * vm,
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- next0 = msm->cached_next_index;
- sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_RX];
- next1 = msm->cached_next_index;
-
- if (PREDICT_FALSE (msm->cached_sw_if_index != sw_if_index0))
- {
- p0 = hash_get (msm->next_node_index_by_sw_if_index, sw_if_index0);
- if (p0 == 0)
- {
- vnet_hw_interface_t *hw0;
-
- hw0 = vnet_get_sup_hw_interface (msm->vnet_main,
- sw_if_index0);
-
- next0 = vlib_node_add_next (msm->vlib_main,
- mac_swap_node.index,
- hw0->output_node_index);
- hash_set (msm->next_node_index_by_sw_if_index,
- sw_if_index0, next0);
- }
- else
- next0 = p0[0];
- msm->cached_sw_if_index = sw_if_index0;
- msm->cached_next_index = next0;
- next1 = next0;
- }
- if (PREDICT_FALSE (msm->cached_sw_if_index != sw_if_index1))
- {
- p1 = hash_get (msm->next_node_index_by_sw_if_index, sw_if_index1);
- if (p1 == 0)
- {
- vnet_hw_interface_t *hw1;
-
- hw1 = vnet_get_sup_hw_interface (msm->vnet_main,
- sw_if_index1);
-
- next1 = vlib_node_add_next (msm->vlib_main,
- mac_swap_node.index,
- hw1->output_node_index);
- hash_set (msm->next_node_index_by_sw_if_index,
- sw_if_index1, next1);
- }
- else
- next1 = p1[0];
- msm->cached_sw_if_index = sw_if_index1;
- msm->cached_next_index = next1;
- }
-
- em->counters[node_counter_base_index + MAC_SWAP_ERROR_SWAPS] += 2;
-
- /* reset buffer so we always point at the MAC hdr */
- vlib_buffer_reset (b0);
- vlib_buffer_reset (b1);
- h0 = vlib_buffer_get_current (b0);
- h1 = vlib_buffer_get_current (b1);
-
- /* Swap 2 x src and dst mac addresses using 8-byte load/stores */
- tmp0a = clib_net_to_host_u64(((u64 *)(h0->dst_address))[0]);
- tmp1a = clib_net_to_host_u64(((u64 *)(h1->dst_address))[0]);
- tmp0b = clib_net_to_host_u64(((u64 *)(h0->src_address))[0]);
- tmp1b = clib_net_to_host_u64(((u64 *)(h1->src_address))[0]);
- ((u64 *)(h0->dst_address))[0] = clib_host_to_net_u64(tmp0b);
- ((u64 *)(h1->dst_address))[0] = clib_host_to_net_u64(tmp1b);
- /* Move the ethertype from "b" to "a" */
- tmp0a &= ~(0xFFFF);
- tmp1a &= ~(0xFFFF);
- tmp0a |= tmp0b & 0xFFFF;
- ((u64 *)(h0->src_address))[0] = clib_host_to_net_u64(tmp0a);
- tmp1a |= tmp1b & 0xFFFF;
- ((u64 *)(h1->src_address))[0] = clib_host_to_net_u64(tmp1a);
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- swap_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
- clib_memcpy (t->src, h0->src_address, 6);
- clib_memcpy (t->dst, h0->dst_address, 6);
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- swap_trace_t *t = vlib_add_trace (vm, node, b1, sizeof (*t));
- clib_memcpy (t->src, h1->src_address, 6);
- clib_memcpy (t->dst, h1->dst_address, 6);
- t->sw_if_index = sw_if_index1;
- t->next_index = next1;
- }
- }
-
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, bi1, next0, next1);
- }
-
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ next0 = msm->cached_next_index;
+ sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
+ next1 = msm->cached_next_index;
+
+ if (PREDICT_FALSE (msm->cached_sw_if_index != sw_if_index0))
+ {
+ p0 =
+ hash_get (msm->next_node_index_by_sw_if_index, sw_if_index0);
+ if (p0 == 0)
+ {
+ vnet_hw_interface_t *hw0;
+
+ hw0 = vnet_get_sup_hw_interface (msm->vnet_main,
+ sw_if_index0);
+
+ next0 = vlib_node_add_next (msm->vlib_main,
+ mac_swap_node.index,
+ hw0->output_node_index);
+ hash_set (msm->next_node_index_by_sw_if_index,
+ sw_if_index0, next0);
+ }
+ else
+ next0 = p0[0];
+ msm->cached_sw_if_index = sw_if_index0;
+ msm->cached_next_index = next0;
+ next1 = next0;
+ }
+ if (PREDICT_FALSE (msm->cached_sw_if_index != sw_if_index1))
+ {
+ p1 =
+ hash_get (msm->next_node_index_by_sw_if_index, sw_if_index1);
+ if (p1 == 0)
+ {
+ vnet_hw_interface_t *hw1;
+
+ hw1 = vnet_get_sup_hw_interface (msm->vnet_main,
+ sw_if_index1);
+
+ next1 = vlib_node_add_next (msm->vlib_main,
+ mac_swap_node.index,
+ hw1->output_node_index);
+ hash_set (msm->next_node_index_by_sw_if_index,
+ sw_if_index1, next1);
+ }
+ else
+ next1 = p1[0];
+ msm->cached_sw_if_index = sw_if_index1;
+ msm->cached_next_index = next1;
+ }
+
+ em->counters[node_counter_base_index + MAC_SWAP_ERROR_SWAPS] += 2;
+
+ /* reset buffer so we always point at the MAC hdr */
+ vlib_buffer_reset (b0);
+ vlib_buffer_reset (b1);
+ h0 = vlib_buffer_get_current (b0);
+ h1 = vlib_buffer_get_current (b1);
+
+ /* Swap 2 x src and dst mac addresses using 8-byte load/stores */
+ tmp0a = clib_net_to_host_u64 (((u64 *) (h0->dst_address))[0]);
+ tmp1a = clib_net_to_host_u64 (((u64 *) (h1->dst_address))[0]);
+ tmp0b = clib_net_to_host_u64 (((u64 *) (h0->src_address))[0]);
+ tmp1b = clib_net_to_host_u64 (((u64 *) (h1->src_address))[0]);
+ ((u64 *) (h0->dst_address))[0] = clib_host_to_net_u64 (tmp0b);
+ ((u64 *) (h1->dst_address))[0] = clib_host_to_net_u64 (tmp1b);
+ /* Move the ethertype from "b" to "a" */
+ tmp0a &= ~(0xFFFF);
+ tmp1a &= ~(0xFFFF);
+ tmp0a |= tmp0b & 0xFFFF;
+ ((u64 *) (h0->src_address))[0] = clib_host_to_net_u64 (tmp0a);
+ tmp1a |= tmp1b & 0xFFFF;
+ ((u64 *) (h1->src_address))[0] = clib_host_to_net_u64 (tmp1a);
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ swap_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ clib_memcpy (t->src, h0->src_address, 6);
+ clib_memcpy (t->dst, h0->dst_address, 6);
+ t->sw_if_index = sw_if_index0;
+ t->next_index = next0;
+ }
+ if (b1->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ swap_trace_t *t =
+ vlib_add_trace (vm, node, b1, sizeof (*t));
+ clib_memcpy (t->src, h1->src_address, 6);
+ clib_memcpy (t->dst, h1->dst_address, 6);
+ t->sw_if_index = sw_if_index1;
+ t->next_index = next1;
+ }
+ }
+
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, bi1, next0, next1);
+ }
+
while (n_left_from > 0 && n_left_to_next > 0)
{
- u32 bi0;
- vlib_buffer_t * b0;
- u32 next0;
- u32 sw_if_index0;
- uword * p0;
- u64 tmp0a, tmp0b;
- ethernet_header_t * h0;
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0;
+ u32 sw_if_index0;
+ uword *p0;
+ u64 tmp0a, tmp0b;
+ ethernet_header_t *h0;
bi0 = from[0];
to_next[0] = bi0;
@@ -274,55 +279,57 @@ mac_swap_node_fn (vlib_main_t * vm,
b0 = vlib_get_buffer (vm, bi0);
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- next0 = msm->cached_next_index;
-
- if (PREDICT_FALSE (msm->cached_sw_if_index != sw_if_index0))
- {
- p0 = hash_get (msm->next_node_index_by_sw_if_index, sw_if_index0);
- if (p0 == 0)
- {
- vnet_hw_interface_t *hw0;
-
- hw0 = vnet_get_sup_hw_interface (msm->vnet_main,
- sw_if_index0);
-
- next0 = vlib_node_add_next (msm->vlib_main,
- mac_swap_node.index,
- hw0->output_node_index);
- hash_set (msm->next_node_index_by_sw_if_index,
- sw_if_index0, next0);
- }
- else
- next0 = p0[0];
- msm->cached_sw_if_index = sw_if_index0;
- msm->cached_next_index = next0;
- }
-
- em->counters[node_counter_base_index + MAC_SWAP_ERROR_SWAPS] += 1;
-
- /* reset buffer so we always point at the MAC hdr */
- vlib_buffer_reset (b0);
- h0 = vlib_buffer_get_current (b0);
-
- /* Exchange src and dst, preserve the ethertype */
- tmp0a = clib_net_to_host_u64(((u64 *)(h0->dst_address))[0]);
- tmp0b = clib_net_to_host_u64(((u64 *)(h0->src_address))[0]);
- ((u64 *)(h0->dst_address))[0] = clib_host_to_net_u64(tmp0b);
- tmp0a &= ~(0xFFFF);
- tmp0a |= tmp0b & 0xFFFF;
- ((u64 *)(h0->src_address))[0] = clib_host_to_net_u64(tmp0a);
-
- /* ship it */
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED))) {
- swap_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
- clib_memcpy (t->src, h0->src_address, 6);
- clib_memcpy (t->dst, h0->dst_address, 6);
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
-
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ next0 = msm->cached_next_index;
+
+ if (PREDICT_FALSE (msm->cached_sw_if_index != sw_if_index0))
+ {
+ p0 =
+ hash_get (msm->next_node_index_by_sw_if_index, sw_if_index0);
+ if (p0 == 0)
+ {
+ vnet_hw_interface_t *hw0;
+
+ hw0 = vnet_get_sup_hw_interface (msm->vnet_main,
+ sw_if_index0);
+
+ next0 = vlib_node_add_next (msm->vlib_main,
+ mac_swap_node.index,
+ hw0->output_node_index);
+ hash_set (msm->next_node_index_by_sw_if_index,
+ sw_if_index0, next0);
+ }
+ else
+ next0 = p0[0];
+ msm->cached_sw_if_index = sw_if_index0;
+ msm->cached_next_index = next0;
+ }
+
+ em->counters[node_counter_base_index + MAC_SWAP_ERROR_SWAPS] += 1;
+
+ /* reset buffer so we always point at the MAC hdr */
+ vlib_buffer_reset (b0);
+ h0 = vlib_buffer_get_current (b0);
+
+ /* Exchange src and dst, preserve the ethertype */
+ tmp0a = clib_net_to_host_u64 (((u64 *) (h0->dst_address))[0]);
+ tmp0b = clib_net_to_host_u64 (((u64 *) (h0->src_address))[0]);
+ ((u64 *) (h0->dst_address))[0] = clib_host_to_net_u64 (tmp0b);
+ tmp0a &= ~(0xFFFF);
+ tmp0a |= tmp0b & 0xFFFF;
+ ((u64 *) (h0->src_address))[0] = clib_host_to_net_u64 (tmp0a);
+
+ /* ship it */
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ swap_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
+ clib_memcpy (t->src, h0->src_address, 6);
+ clib_memcpy (t->dst, h0->dst_address, 6);
+ t->sw_if_index = sw_if_index0;
+ t->next_index = next0;
+ }
+
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
bi0, next0);
@@ -334,6 +341,7 @@ mac_swap_node_fn (vlib_main_t * vm,
return frame->n_vectors;
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (mac_swap_node,static) = {
.function = mac_swap_node_fn,
.name = "mac-swap",
@@ -351,30 +359,39 @@ VLIB_REGISTER_NODE (mac_swap_node,static) = {
[MAC_SWAP_NEXT_DROP] = "error-drop",
},
};
+/* *INDENT-ON* */
-clib_error_t *mac_swap_init (vlib_main_t *vm)
+clib_error_t *
+mac_swap_init (vlib_main_t * vm)
{
- mac_swap_main_t * msm = &mac_swap_main;
-
+ mac_swap_main_t *msm = &mac_swap_main;
+
msm->next_node_index_by_sw_if_index = hash_create (0, sizeof (uword));
- msm->cached_next_index = (u32)~0;
- msm->cached_sw_if_index = (u32)~0;
+ msm->cached_next_index = (u32) ~ 0;
+ msm->cached_sw_if_index = (u32) ~ 0;
msm->vlib_main = vm;
- msm->vnet_main = vnet_get_main();
+ msm->vnet_main = vnet_get_main ();
/* Driver RX nodes send pkts here... */
#define _(a) ixge_set_next_node (IXGE_RX_NEXT_##a##_INPUT, "mac-swap");
foreach_hw_driver_next
#undef _
#define _(a) ixgev_set_next_node (IXGEV_RX_NEXT_##a##_INPUT, "mac-swap");
- foreach_hw_driver_next
+ foreach_hw_driver_next
#undef _
#define _(a) ige_set_next_node (IGE_RX_NEXT_##a##_INPUT, "mac-swap");
- foreach_hw_driver_next
+ foreach_hw_driver_next
#undef _
-
- return 0;
+ return 0;
}
VLIB_INIT_FUNCTION (mac_swap_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */