diff options
Diffstat (limited to 'vnet/vnet/devices/af_packet/node.c')
| -rw-r--r-- | vnet/vnet/devices/af_packet/node.c | 144 |
1 files changed, 82 insertions, 62 deletions
diff --git a/vnet/vnet/devices/af_packet/node.c b/vnet/vnet/devices/af_packet/node.c index c5daf64c72e..fa2b5ac1755 100644 --- a/vnet/vnet/devices/af_packet/node.c +++ b/vnet/vnet/devices/af_packet/node.c @@ -28,75 +28,80 @@ #define foreach_af_packet_input_error -typedef enum { +typedef enum +{ #define _(f,s) AF_PACKET_INPUT_ERROR_##f, foreach_af_packet_input_error #undef _ - AF_PACKET_INPUT_N_ERROR, + AF_PACKET_INPUT_N_ERROR, } af_packet_input_error_t; -static char * af_packet_input_error_strings[] = { +static char *af_packet_input_error_strings[] = { #define _(n,s) s, - foreach_af_packet_input_error + foreach_af_packet_input_error #undef _ }; -enum { +enum +{ AF_PACKET_INPUT_NEXT_DROP, AF_PACKET_INPUT_NEXT_ETHERNET_INPUT, AF_PACKET_INPUT_N_NEXT, }; -typedef struct { +typedef struct +{ u32 next_index; u32 hw_if_index; int block; struct tpacket2_hdr tph; } af_packet_input_trace_t; -static u8 * format_af_packet_input_trace (u8 * s, va_list * args) +static u8 * +format_af_packet_input_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 *); - af_packet_input_trace_t * t = va_arg (*args, af_packet_input_trace_t *); + af_packet_input_trace_t *t = va_arg (*args, af_packet_input_trace_t *); uword indent = format_get_indent (s); s = format (s, "af_packet: hw_if_index %d next-index %d", t->hw_if_index, t->next_index); - s = format (s, "\n%Utpacket2_hdr:\n%Ustatus 0x%x len %u snaplen %u mac %u net %u" - "\n%Usec 0x%x nsec 0x%x vlan %U" + s = + format (s, + "\n%Utpacket2_hdr:\n%Ustatus 0x%x len %u snaplen %u mac %u net %u" + "\n%Usec 0x%x nsec 0x%x vlan %U" #ifdef TP_STATUS_VLAN_TPID_VALID - " vlan_tpid %u" + " vlan_tpid %u" #endif - , - format_white_space, indent + 2, - format_white_space, indent + 4, - t->tph.tp_status, - t->tph.tp_len, - t->tph.tp_snaplen, - t->tph.tp_mac, - t->tph.tp_net, - format_white_space, indent + 4, - t->tph.tp_sec, - t->tph.tp_nsec, - format_ethernet_vlan_tci, t->tph.tp_vlan_tci + , + format_white_space, indent + 2, + format_white_space, indent + 4, + t->tph.tp_status, + t->tph.tp_len, + t->tph.tp_snaplen, + t->tph.tp_mac, + t->tph.tp_net, + format_white_space, indent + 4, + t->tph.tp_sec, + t->tph.tp_nsec, format_ethernet_vlan_tci, t->tph.tp_vlan_tci #ifdef TP_STATUS_VLAN_TPID_VALID - , t->tph.tp_vlan_tpid + , t->tph.tp_vlan_tpid #endif - ); + ); return s; } always_inline void -buffer_add_to_chain(vlib_main_t *vm, u32 bi, u32 first_bi, u32 prev_bi) +buffer_add_to_chain (vlib_main_t * vm, u32 bi, u32 first_bi, u32 prev_bi) { - vlib_buffer_t * b = vlib_get_buffer (vm, bi); - vlib_buffer_t * first_b = vlib_get_buffer (vm, first_bi); - vlib_buffer_t * prev_b = vlib_get_buffer (vm, prev_bi); + vlib_buffer_t *b = vlib_get_buffer (vm, bi); + vlib_buffer_t *first_b = vlib_get_buffer (vm, first_bi); + vlib_buffer_t *prev_b = vlib_get_buffer (vm, prev_bi); /* update first buffer */ - first_b->total_length_not_including_first_buffer += b->current_length; + first_b->total_length_not_including_first_buffer += b->current_length; /* update previous buffer */ prev_b->next_buffer = bi; @@ -106,9 +111,9 @@ buffer_add_to_chain(vlib_main_t *vm, u32 bi, u32 first_bi, u32 prev_bi) b->next_buffer = 0; #if DPDK > 0 - struct rte_mbuf * mbuf = rte_mbuf_from_vlib_buffer(b); - struct rte_mbuf * first_mbuf = rte_mbuf_from_vlib_buffer(first_b); - struct rte_mbuf * prev_mbuf = rte_mbuf_from_vlib_buffer(prev_b); + struct rte_mbuf *mbuf = rte_mbuf_from_vlib_buffer (b); + struct rte_mbuf *first_mbuf = rte_mbuf_from_vlib_buffer (first_b); + struct rte_mbuf *prev_mbuf = rte_mbuf_from_vlib_buffer (prev_b); first_mbuf->nb_segs++; prev_mbuf->next = mbuf; mbuf->data_len = b->current_length; @@ -118,11 +123,11 @@ buffer_add_to_chain(vlib_main_t *vm, u32 bi, u32 first_bi, u32 prev_bi) } always_inline uword -af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, u32 device_idx) +af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame, u32 device_idx) { - af_packet_main_t * apm = &af_packet_main; - af_packet_if_t * apif = pool_elt_at_index(apm->interfaces, device_idx); + af_packet_main_t *apm = &af_packet_main; + af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, device_idx); struct tpacket2_hdr *tph; u32 next_index = AF_PACKET_INPUT_NEXT_ETHERNET_INPUT; u32 block = 0; @@ -130,24 +135,26 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, u32 n_free_bufs; u32 n_rx_packets = 0; u32 n_rx_bytes = 0; - u32 * to_next = 0; + u32 *to_next = 0; u32 block_size = apif->rx_req->tp_block_size; u32 frame_size = apif->rx_req->tp_frame_size; u32 frame_num = apif->rx_req->tp_frame_nr; - u8 * block_start = apif->rx_ring + block * block_size; + u8 *block_start = apif->rx_ring + block * block_size; uword n_trace = vlib_get_trace_count (vm, node); u32 n_buffer_bytes = vlib_buffer_free_list_buffer_size (vm, - VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); + VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); u32 min_bufs = apif->rx_req->tp_frame_size / n_buffer_bytes; if (apif->per_interface_next_index != ~0) - next_index = apif->per_interface_next_index; + next_index = apif->per_interface_next_index; n_free_bufs = vec_len (apm->rx_buffers); - if (PREDICT_FALSE(n_free_bufs < VLIB_FRAME_SIZE)) + if (PREDICT_FALSE (n_free_bufs < VLIB_FRAME_SIZE)) { - vec_validate(apm->rx_buffers, VLIB_FRAME_SIZE + n_free_bufs - 1); - n_free_bufs += vlib_buffer_alloc(vm, &apm->rx_buffers[n_free_bufs], VLIB_FRAME_SIZE); + vec_validate (apm->rx_buffers, VLIB_FRAME_SIZE + n_free_bufs - 1); + n_free_bufs += + vlib_buffer_alloc (vm, &apm->rx_buffers[n_free_bufs], + VLIB_FRAME_SIZE); _vec_len (apm->rx_buffers) = n_free_bufs; } @@ -155,7 +162,7 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, tph = (struct tpacket2_hdr *) (block_start + rx_frame * frame_size); while ((tph->tp_status & TP_STATUS_USER) && (n_free_bufs > min_bufs)) { - vlib_buffer_t * b0, * first_b0 = 0; + vlib_buffer_t *b0, *first_b0 = 0; u32 next0 = next_index; u32 n_left_to_next; @@ -178,9 +185,11 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, n_free_bufs--; /* copy data */ - u32 bytes_to_copy = data_len > n_buffer_bytes ? n_buffer_bytes : data_len; + u32 bytes_to_copy = + data_len > n_buffer_bytes ? n_buffer_bytes : data_len; b0->current_data = 0; - clib_memcpy (vlib_buffer_get_current (b0), (u8 *) tph + tph->tp_mac + offset, bytes_to_copy); + clib_memcpy (vlib_buffer_get_current (b0), + (u8 *) tph + tph->tp_mac + offset, bytes_to_copy); /* fill buffer header */ b0->current_length = bytes_to_copy; @@ -188,19 +197,19 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, if (offset == 0) { #if DPDK > 0 - struct rte_mbuf * mb = rte_mbuf_from_vlib_buffer(b0); + struct rte_mbuf *mb = rte_mbuf_from_vlib_buffer (b0); rte_pktmbuf_data_len (mb) = b0->current_length; rte_pktmbuf_pkt_len (mb) = b0->current_length; #endif b0->total_length_not_including_first_buffer = 0; b0->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID; - vnet_buffer(b0)->sw_if_index[VLIB_RX] = apif->sw_if_index; - vnet_buffer(b0)->sw_if_index[VLIB_TX] = (u32)~0; + vnet_buffer (b0)->sw_if_index[VLIB_RX] = apif->sw_if_index; + vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0; first_bi0 = bi0; - first_b0 = vlib_get_buffer(vm, first_bi0); + first_b0 = vlib_get_buffer (vm, first_bi0); } else - buffer_add_to_chain(vm, bi0, first_bi0, prev_bi0); + buffer_add_to_chain (vm, bi0, first_bi0, prev_bi0); offset += bytes_to_copy; data_len -= bytes_to_copy; @@ -212,22 +221,23 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, n_left_to_next--; /* trace */ - VLIB_BUFFER_TRACE_TRAJECTORY_INIT(first_b0); - if (PREDICT_FALSE(n_trace > 0)) + VLIB_BUFFER_TRACE_TRAJECTORY_INIT (first_b0); + if (PREDICT_FALSE (n_trace > 0)) { af_packet_input_trace_t *tr; - vlib_trace_buffer (vm, node, next0, first_b0, /* follow_chain */ 0); + vlib_trace_buffer (vm, node, next0, first_b0, /* follow_chain */ + 0); vlib_set_trace_count (vm, node, --n_trace); tr = vlib_add_trace (vm, node, first_b0, sizeof (*tr)); tr->next_index = next0; tr->hw_if_index = apif->hw_if_index; - clib_memcpy(&tr->tph, tph, sizeof(struct tpacket2_hdr)); + clib_memcpy (&tr->tph, tph, sizeof (struct tpacket2_hdr)); } /* enque and take next packet */ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, first_bi0, next0); - /* next packet */ + /* next packet */ tph->tp_status = TP_STATUS_KERNEL; rx_frame = (rx_frame + 1) % frame_num; tph = (struct tpacket2_hdr *) (block_start + rx_frame * frame_size); @@ -239,11 +249,9 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, apif->next_rx_frame = rx_frame; vlib_increment_combined_counter - (vnet_get_main()->interface_main.combined_sw_if_counters + (vnet_get_main ()->interface_main.combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX, - os_get_cpu_number(), - apif->hw_if_index, - n_rx_packets, n_rx_bytes); + os_get_cpu_number (), apif->hw_if_index, n_rx_packets, n_rx_bytes); return n_rx_packets; } @@ -255,17 +263,20 @@ af_packet_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, int i; u32 n_rx_packets = 0; - af_packet_main_t * apm = &af_packet_main; + af_packet_main_t *apm = &af_packet_main; + /* *INDENT-OFF* */ clib_bitmap_foreach (i, apm->pending_input_bitmap, ({ clib_bitmap_set (apm->pending_input_bitmap, i, 0); n_rx_packets += af_packet_device_input_fn(vm, node, frame, i); })); + /* *INDENT-ON* */ return n_rx_packets; } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (af_packet_input_node) = { .function = af_packet_input_fn, .name = "af-packet-input", @@ -283,4 +294,13 @@ VLIB_REGISTER_NODE (af_packet_input_node) = { }; VLIB_NODE_FUNCTION_MULTIARCH (af_packet_input_node, af_packet_input_fn) +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |