diff options
Diffstat (limited to 'src/plugins')
| -rw-r--r-- | src/plugins/avf/avf.h | 5 | ||||
| -rw-r--r-- | src/plugins/avf/input.c | 532 |
2 files changed, 334 insertions, 203 deletions
diff --git a/src/plugins/avf/avf.h b/src/plugins/avf/avf.h index 5db40746541..bd5af01adf8 100644 --- a/src/plugins/avf/avf.h +++ b/src/plugins/avf/avf.h @@ -122,15 +122,13 @@ typedef struct typedef struct { - u32 bi; u32 status; u16 length; - u16 tail_length; u8 ptype; u8 error; } avf_rx_vector_entry_t; -STATIC_ASSERT_SIZEOF (avf_rx_vector_entry_t, 16); +STATIC_ASSERT_SIZEOF (avf_rx_vector_entry_t, 8); #define AVF_RX_VECTOR_SZ VLIB_FRAME_SIZE @@ -146,6 +144,7 @@ typedef struct CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); avf_rx_vector_entry_t rx_vector[AVF_RX_VECTOR_SZ]; u32 *to_free; + vlib_buffer_t buffer_template; } avf_per_thread_data_t; typedef struct diff --git a/src/plugins/avf/input.c b/src/plugins/avf/input.c index 5b7f48a3ed7..475b207ed74 100644 --- a/src/plugins/avf/input.c +++ b/src/plugins/avf/input.c @@ -45,27 +45,14 @@ static __clib_unused char *avf_input_error_strings[] = { #define AVF_RX_DESC_STATUS_DD AVF_RX_DESC_STATUS(0) #define AVF_RX_DESC_STATUS_EOP AVF_RX_DESC_STATUS(1) -static_always_inline void -avf_input_trace (vlib_main_t * vm, vlib_node_runtime_t * node, u32 next0, - vlib_buffer_t * b0, uword * n_trace, avf_device_t * ad, - avf_rx_vector_entry_t * rxve) -{ - avf_input_trace_t *tr; - vlib_trace_buffer (vm, node, next0, b0, /* follow_chain */ 0); - vlib_set_trace_count (vm, node, --(*n_trace)); - tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); - tr->next_index = next0; - tr->hw_if_index = ad->hw_if_index; - clib_memcpy (&tr->rxve, rxve, sizeof (avf_rx_vector_entry_t)); -} - #define AVF_INPUT_REFILL_TRESHOLD 32 static_always_inline void avf_rxq_refill (vlib_main_t * vm, vlib_node_runtime_t * node, avf_rxq_t * rxq, int use_iova) { u16 n_refill, mask, n_alloc, slot; - avf_rx_desc_t *d; + u32 s0, s1, s2, s3; + avf_rx_desc_t *d[4]; n_refill = rxq->size - 1 - rxq->n_bufs; if (PREDICT_TRUE (n_refill <= AVF_INPUT_REFILL_TRESHOLD)) @@ -89,20 +76,77 @@ avf_rxq_refill (vlib_main_t * vm, vlib_node_runtime_t * node, avf_rxq_t * rxq, rxq->n_bufs += n_alloc; - while (n_alloc--) + while (n_alloc >= 4) + { + if (PREDICT_TRUE (slot + 3 < rxq->size)) + { + s0 = slot; + s1 = slot + 1; + s2 = slot + 2; + s3 = slot + 3; + } + else + { + s0 = slot; + s1 = (slot + 1) & mask; + s2 = (slot + 2) & mask; + s3 = (slot + 3) & mask; + } + + d[0] = ((avf_rx_desc_t *) rxq->descs) + s0; + d[1] = ((avf_rx_desc_t *) rxq->descs) + s1; + d[2] = ((avf_rx_desc_t *) rxq->descs) + s2; + d[3] = ((avf_rx_desc_t *) rxq->descs) + s3; + if (use_iova) + { + vlib_buffer_t *b; + b = vlib_get_buffer (vm, rxq->bufs[s0]); + d[0]->qword[0] = pointer_to_uword (b->data); + b = vlib_get_buffer (vm, rxq->bufs[s1]); + d[1]->qword[0] = pointer_to_uword (b->data); + b = vlib_get_buffer (vm, rxq->bufs[s2]); + d[2]->qword[0] = pointer_to_uword (b->data); + b = vlib_get_buffer (vm, rxq->bufs[s3]); + d[3]->qword[0] = pointer_to_uword (b->data); + } + else + { + d[0]->qword[0] = + vlib_get_buffer_data_physical_address (vm, rxq->bufs[s0]); + d[1]->qword[0] = + vlib_get_buffer_data_physical_address (vm, rxq->bufs[s1]); + d[2]->qword[0] = + vlib_get_buffer_data_physical_address (vm, rxq->bufs[s2]); + d[3]->qword[0] = + vlib_get_buffer_data_physical_address (vm, rxq->bufs[s3]); + } + + d[0]->qword[1] = 0; + d[1]->qword[1] = 0; + d[2]->qword[1] = 0; + d[3]->qword[1] = 0; + + /* next */ + slot = (slot + 4) & mask; + n_alloc -= 4; + } + while (n_alloc) { - u64 addr; - d = ((avf_rx_desc_t *) rxq->descs) + slot; + s0 = slot; + d[0] = ((avf_rx_desc_t *) rxq->descs) + s0; if (use_iova) { - vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[slot]); - addr = pointer_to_uword (b->data); + vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[s0]); + d[0]->qword[0] = pointer_to_uword (b->data); } else - addr = vlib_get_buffer_data_physical_address (vm, rxq->bufs[slot]); - d->qword[0] = addr; - d->qword[1] = 0; + d[0]->qword[0] = + vlib_get_buffer_data_physical_address (vm, rxq->bufs[s0]); + d[0]->qword[1] = 0; + + /* next */ slot = (slot + 1) & mask; + n_alloc -= 1; } CLIB_MEMORY_BARRIER (); @@ -111,7 +155,7 @@ avf_rxq_refill (vlib_main_t * vm, vlib_node_runtime_t * node, avf_rxq_t * rxq, static_always_inline void avf_check_for_error (vlib_node_runtime_t * node, avf_rx_vector_entry_t * rxve, - vlib_buffer_t * b, u32 * next) + vlib_buffer_t * b, u16 * next) { avf_main_t *am = &avf_main; avf_ptype_t *ptype; @@ -142,9 +186,139 @@ avf_find_next (avf_rx_vector_entry_t * rxve, vlib_buffer_t * b, static_always_inline uword +avf_process_rx_burst (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_buffer_t * bt, avf_rx_vector_entry_t * rxve, + vlib_buffer_t ** b, u16 * next, u32 n_rxv, + u8 maybe_error, int known_next) +{ + uword n_rx_bytes = 0; + + while (n_rxv >= 4) + { + if (n_rxv >= 12) + { + vlib_prefetch_buffer_header (b[8], LOAD); + vlib_prefetch_buffer_header (b[9], LOAD); + vlib_prefetch_buffer_header (b[10], LOAD); + vlib_prefetch_buffer_header (b[11], LOAD); + if (!known_next) + { + CLIB_PREFETCH (b[8]->data, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (b[9]->data, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (b[10]->data, CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (b[11]->data, CLIB_CACHE_LINE_BYTES, LOAD); + } + } + + n_rx_bytes += b[0]->current_length = rxve[0].length; + n_rx_bytes += b[1]->current_length = rxve[1].length; + n_rx_bytes += b[2]->current_length = rxve[2].length; + n_rx_bytes += b[3]->current_length = rxve[3].length; + + if (!known_next) + { + ethernet_header_t *e0, *e1, *e2, *e3; + + e0 = (ethernet_header_t *) b[0]->data; + e1 = (ethernet_header_t *) b[1]->data; + e2 = (ethernet_header_t *) b[2]->data; + e3 = (ethernet_header_t *) b[3]->data; + + if (ethernet_frame_is_any_tagged_x4 (e0->type, e1->type, + e2->type, e3->type)) + { + next[0] = avf_find_next (rxve, b[0], 1); + next[1] = avf_find_next (rxve + 1, b[1], 1); + next[2] = avf_find_next (rxve + 2, b[2], 1); + next[3] = avf_find_next (rxve + 3, b[3], 1); + } + else + { + next[0] = avf_find_next (rxve, b[0], 0); + next[1] = avf_find_next (rxve + 1, b[1], 0); + next[2] = avf_find_next (rxve + 2, b[2], 0); + next[3] = avf_find_next (rxve + 3, b[3], 0); + } + + if (PREDICT_FALSE (maybe_error)) + { + avf_check_for_error (node, rxve + 0, b[0], next); + avf_check_for_error (node, rxve + 1, b[1], next + 1); + avf_check_for_error (node, rxve + 2, b[2], next + 2); + avf_check_for_error (node, rxve + 3, b[3], next + 3); + } + } + else if (bt->current_config_index) + { + b[0]->current_config_index = bt->current_config_index; + b[1]->current_config_index = bt->current_config_index; + b[2]->current_config_index = bt->current_config_index; + b[3]->current_config_index = bt->current_config_index; + vnet_buffer (b[0])->feature_arc_index = + vnet_buffer (bt)->feature_arc_index; + vnet_buffer (b[1])->feature_arc_index = + vnet_buffer (bt)->feature_arc_index; + vnet_buffer (b[2])->feature_arc_index = + vnet_buffer (bt)->feature_arc_index; + vnet_buffer (b[3])->feature_arc_index = + vnet_buffer (bt)->feature_arc_index; + } + + clib_memcpy (vnet_buffer (b[0])->sw_if_index, + vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32)); + clib_memcpy (vnet_buffer (b[1])->sw_if_index, + vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32)); + clib_memcpy (vnet_buffer (b[2])->sw_if_index, + vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32)); + clib_memcpy (vnet_buffer (b[3])->sw_if_index, + vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32)); + + VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]); + VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[1]); + VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[2]); + VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[3]); + + /* next */ + rxve += 4; + b += 4; + next += 4; + n_rxv -= 4; + } + while (n_rxv) + { + b[0]->current_length = rxve->length; + n_rx_bytes += b[0]->current_length; + + if (!known_next) + { + next[0] = avf_find_next (rxve, b[0], 1); + avf_check_for_error (node, rxve + 0, b[0], next); + } + else if (bt->current_config_index) + { + b[0]->current_config_index = bt->current_config_index; + vnet_buffer (b[0])->feature_arc_index = + vnet_buffer (bt)->feature_arc_index; + } + + clib_memcpy (vnet_buffer (b[0])->sw_if_index, + vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32)); + + VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0); + + /* next */ + rxve += 1; + b += 1; + next += 1; + n_rxv -= 1; + + } + return n_rx_bytes; +} + +static_always_inline uword avf_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, avf_device_t * ad, u16 qid, - int with_features_or_tracing) + vlib_frame_t * frame, avf_device_t * ad, u16 qid) { avf_main_t *am = &avf_main; vnet_main_t *vnm = vnet_get_main (); @@ -152,27 +326,95 @@ avf_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node, avf_per_thread_data_t *ptd = vec_elt_at_index (am->per_thread_data, thr_idx); avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid); - avf_rx_vector_entry_t *rxve; - uword n_trace = vlib_get_trace_count (vm, node); - u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT; + avf_rx_vector_entry_t *rxve = 0; + uword n_trace; avf_rx_desc_t *d; - u32 *to_next = 0; - u32 n_rx_packets = 0; - u32 n_rx_bytes = 0; - u32 sw_if_idx[VLIB_N_RX_TX] = {[VLIB_RX] = ad->sw_if_index,[VLIB_TX] = ~0 }; + u32 n_rx_packets = 0, n_rx_bytes = 0; u16 mask = rxq->size - 1; u16 n_rxv = 0; u8 maybe_error = 0; + u32 buffer_indices[AVF_RX_VECTOR_SZ], *bi; + u16 nexts[AVF_RX_VECTOR_SZ], *next; + vlib_buffer_t *bufs[AVF_RX_VECTOR_SZ]; + vlib_buffer_t *bt = &ptd->buffer_template; + int known_next = 0; + u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT; + + STATIC_ASSERT_SIZEOF (avf_rx_vector_entry_t, 8); + STATIC_ASSERT_OFFSET_OF (avf_rx_vector_entry_t, status, 0); + STATIC_ASSERT_OFFSET_OF (avf_rx_vector_entry_t, length, 4); + STATIC_ASSERT_OFFSET_OF (avf_rx_vector_entry_t, ptype, 6); + STATIC_ASSERT_OFFSET_OF (avf_rx_vector_entry_t, error, 7); /* fetch up to AVF_RX_VECTOR_SZ from the rx ring, unflatten them and copy needed data from descriptor to rx vector */ d = rxq->descs + rxq->next; - while ((d->qword[1] & AVF_RX_DESC_STATUS_DD) && n_rxv < AVF_RX_VECTOR_SZ) + bi = buffer_indices; + while (n_rxv < AVF_RX_VECTOR_SZ) { - u16 next_pf = (rxq->next + 8) & mask; - CLIB_PREFETCH (rxq->descs + next_pf, CLIB_CACHE_LINE_BYTES, LOAD); + if (rxq->next + 11 < rxq->size) + { + int stride = 8; + CLIB_PREFETCH (rxq->descs + (rxq->next + stride), + CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (rxq->descs + (rxq->next + stride + 1), + CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (rxq->descs + (rxq->next + stride + 2), + CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (rxq->descs + (rxq->next + stride + 3), + CLIB_CACHE_LINE_BYTES, LOAD); + } + +#ifdef CLIB_HAVE_VEC256 + u64x4 q1x4, v, err4; + u64x4 status_dd_eop_mask = u64x4_splat (0x3); + + if (n_rxv >= AVF_RX_VECTOR_SZ - 4) + goto one_by_one; + + if (rxq->next >= rxq->size - 4) + goto one_by_one; + + /* load 1st quadword of 4 dscriptors into 256-bit vector register */ + /* *INDENT-OFF* */ + q1x4 = (u64x4) { + d[0].qword[1], + d[1].qword[1], + d[2].qword[1], + d[3].qword[1] + }; + /* *INDENT-ON* */ + + /* not all packets are ready or at least one of them is chained */ + if (!u64x4_is_equal (q1x4 & status_dd_eop_mask, status_dd_eop_mask)) + goto one_by_one; + + /* shift and mask status, length, ptype and err */ + v = q1x4 & u64x4_splat ((u64) 0x3FFFFULL); + v |= (q1x4 >> 6) & u64x4_splat ((u64) 0xFFFF << 32); + v |= (q1x4 << 18) & u64x4_splat ((u64) 0xFF << 48); + v |= err4 = (q1x4 << 37) & u64x4_splat ((u64) 0xFF << 56); + + u64x4_store_unaligned (v, ptd->rx_vector + n_rxv); + maybe_error |= !u64x4_is_all_zero (err4); + + clib_memcpy (bi, rxq->bufs + rxq->next, 4 * sizeof (u32)); + + /* next */ + rxq->next = (rxq->next + 4) & mask; + d = rxq->descs + rxq->next; + n_rxv += 4; + rxq->n_bufs -= 4; + bi += 4; + continue; + one_by_one: +#endif + CLIB_PREFETCH (rxq->descs + ((rxq->next + 8) & mask), + CLIB_CACHE_LINE_BYTES, LOAD); + if ((d->qword[1] & AVF_RX_DESC_STATUS_DD) == 0) + break; rxve = ptd->rx_vector + n_rxv; - rxve->bi = rxq->bufs[rxq->next]; + bi[0] = rxq->bufs[rxq->next]; rxve->status = avf_get_u64_bits (d, 8, 18, 0); rxve->error = avf_get_u64_bits (d, 8, 26, 19); rxve->ptype = avf_get_u64_bits (d, 8, 37, 30); @@ -190,10 +432,11 @@ avf_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node, d = rxq->descs + rxq->next; n_rxv++; rxq->n_bufs--; + bi++; } if (n_rxv == 0) - return 0; + goto done; /* refill rx ring */ if (ad->flags & AVF_DEVICE_F_IOVA) @@ -201,177 +444,70 @@ avf_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node, else avf_rxq_refill (vm, node, rxq, 0 /* use_iova */ ); + vlib_get_buffers (vm, buffer_indices, bufs, n_rxv); n_rx_packets = n_rxv; - rxve = ptd->rx_vector; - while (n_rxv) - { - u32 n_left_to_next; - u32 bi0, bi1, bi2, bi3; - vlib_buffer_t *b0, *b1, *b2, *b3; - u32 next0, next1, next2, next3; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_rxv >= 12 && n_left_to_next >= 4) - { - vlib_buffer_t *p; - p = vlib_get_buffer (vm, rxve[8].bi); - vlib_prefetch_buffer_header (p, LOAD); - CLIB_PREFETCH (p->data, CLIB_CACHE_LINE_BYTES, LOAD); - - p = vlib_get_buffer (vm, rxve[9].bi); - vlib_prefetch_buffer_header (p, LOAD); - CLIB_PREFETCH (p->data, CLIB_CACHE_LINE_BYTES, LOAD); - - p = vlib_get_buffer (vm, rxve[10].bi); - vlib_prefetch_buffer_header (p, LOAD); - CLIB_PREFETCH (p->data, CLIB_CACHE_LINE_BYTES, LOAD); - - p = vlib_get_buffer (vm, rxve[11].bi); - vlib_prefetch_buffer_header (p, LOAD); - CLIB_PREFETCH (p->data, CLIB_CACHE_LINE_BYTES, LOAD); - - to_next[0] = bi0 = rxve[0].bi; - to_next[1] = bi1 = rxve[1].bi; - to_next[2] = bi2 = rxve[2].bi; - to_next[3] = bi3 = rxve[3].bi; - - b0 = vlib_get_buffer (vm, bi0); - b1 = vlib_get_buffer (vm, bi1); - b2 = vlib_get_buffer (vm, bi2); - b3 = vlib_get_buffer (vm, bi3); - - b0->current_length = rxve[0].length; - b1->current_length = rxve[1].length; - b2->current_length = rxve[2].length; - b3->current_length = rxve[3].length; - - n_rx_bytes += b0->current_length; - n_rx_bytes += b1->current_length; - n_rx_bytes += b2->current_length; - n_rx_bytes += b3->current_length; - - if (PREDICT_TRUE (ad->per_interface_next_index == ~0)) - { - ethernet_header_t *e0, *e1, *e2, *e3; - - e0 = (ethernet_header_t *) b0->data; - e1 = (ethernet_header_t *) b1->data; - e2 = (ethernet_header_t *) b2->data; - e3 = (ethernet_header_t *) b3->data; - - if (ethernet_frame_is_any_tagged_x4 (e0->type, e1->type, - e2->type, e3->type)) - { - next0 = avf_find_next (rxve, b0, 1); - next1 = avf_find_next (rxve + 1, b1, 1); - next2 = avf_find_next (rxve + 2, b2, 1); - next3 = avf_find_next (rxve + 3, b3, 1); - } - else - { - next0 = avf_find_next (rxve, b0, 0); - next1 = avf_find_next (rxve + 1, b1, 0); - next2 = avf_find_next (rxve + 2, b2, 0); - next3 = avf_find_next (rxve + 3, b3, 0); - } - - if (with_features_or_tracing) - vnet_feature_start_device_input_x4 (ad->sw_if_index, &next0, - &next1, &next2, &next3, - b0, b1, b2, b3); - - if (PREDICT_FALSE (maybe_error)) - { - avf_check_for_error (node, rxve + 0, b0, &next0); - avf_check_for_error (node, rxve + 1, b1, &next1); - avf_check_for_error (node, rxve + 2, b2, &next2); - avf_check_for_error (node, rxve + 3, b3, &next3); - } - } - else - next0 = next1 = next2 = next3 = ad->per_interface_next_index; - - clib_memcpy (vnet_buffer (b0)->sw_if_index, sw_if_idx, - sizeof (sw_if_idx)); - clib_memcpy (vnet_buffer (b1)->sw_if_index, sw_if_idx, - sizeof (sw_if_idx)); - clib_memcpy (vnet_buffer (b2)->sw_if_index, sw_if_idx, - sizeof (sw_if_idx)); - clib_memcpy (vnet_buffer (b3)->sw_if_index, sw_if_idx, - sizeof (sw_if_idx)); - - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0); - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b1); - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b2); - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b3); - - if (with_features_or_tracing && PREDICT_FALSE (n_trace)) - { - avf_input_trace (vm, node, next0, b0, &n_trace, ad, rxve); - if (n_trace) - avf_input_trace (vm, node, next1, b1, &n_trace, ad, rxve + 1); - if (n_trace) - avf_input_trace (vm, node, next2, b2, &n_trace, ad, rxve + 2); - if (n_trace) - avf_input_trace (vm, node, next3, b3, &n_trace, ad, rxve + 3); - } - /* next */ - to_next += 4; - n_left_to_next -= 4; - rxve += 4; - n_rxv -= 4; - - /* enqueue */ - vlib_validate_buffer_enqueue_x4 (vm, node, next_index, to_next, - n_left_to_next, bi0, bi1, bi2, bi3, - next0, next1, next2, next3); - } - while (n_rxv && n_left_to_next) - { - bi0 = rxve[0].bi; - to_next[0] = bi0; - b0 = vlib_get_buffer (vm, bi0); + vnet_buffer (bt)->sw_if_index[VLIB_RX] = ad->sw_if_index; + vnet_buffer (bt)->sw_if_index[VLIB_TX] = ~0; - b0->current_length = rxve->length; - n_rx_bytes += b0->current_length; + /* receive burst of packets from DPDK PMD */ + if (PREDICT_FALSE (ad->per_interface_next_index != ~0)) + { + known_next = 1; + next_index = ad->per_interface_next_index; + } - if (PREDICT_TRUE (ad->per_interface_next_index == ~0)) - { - next0 = avf_find_next (rxve, b0, 1); - if (with_features_or_tracing) - vnet_feature_start_device_input_x1 (ad->sw_if_index, &next0, - b0); - avf_check_for_error (node, rxve + 0, b0, &next0); - } - else - next0 = ad->per_interface_next_index; + /* as all packets belong to thr same interface feature arc lookup + can be don once and result stored */ + if (PREDICT_FALSE (vnet_device_input_have_features (ad->sw_if_index))) + { + vnet_feature_start_device_input_x1 (ad->sw_if_index, &next_index, bt); + known_next = 1; + } - clib_memcpy (vnet_buffer (b0)->sw_if_index, sw_if_idx, - sizeof (sw_if_idx)); + if (known_next) + { + clib_memset_u16 (nexts, next_index, n_rxv); + n_rx_bytes = avf_process_rx_burst (vm, node, bt, ptd->rx_vector, bufs, + nexts, n_rxv, maybe_error, 1); + vnet_buffer (bt)->feature_arc_index = 0; + bt->current_config_index = 0; + } + else + n_rx_bytes = avf_process_rx_burst (vm, node, bt, ptd->rx_vector, bufs, + nexts, n_rxv, maybe_error, 0); - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0); - if (with_features_or_tracing && PREDICT_FALSE (n_trace > 0)) - avf_input_trace (vm, node, next0, b0, &n_trace, ad, rxve); + /* packet trace if enabled */ + if (PREDICT_FALSE ((n_trace = vlib_get_trace_count (vm, node)))) + { + u32 n_left = n_rx_packets; + bi = buffer_indices; + next = nexts; + while (n_trace && n_left) + { + vlib_buffer_t *b; + avf_input_trace_t *tr; + b = vlib_get_buffer (vm, bi[0]); + vlib_trace_buffer (vm, node, next[0], b, /* follow_chain */ 0); + tr = vlib_add_trace (vm, node, b, sizeof (*tr)); + tr->next_index = next[0]; + tr->hw_if_index = ad->hw_if_index; + clib_memcpy (&tr->rxve, rxve, sizeof (avf_rx_vector_entry_t)); /* next */ - to_next += 1; - n_left_to_next -= 1; - rxve += 1; - n_rxv -= 1; - - /* enqueue */ - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, - n_left_to_next, bi0, next0); + n_trace--; + n_left--; + bi++; + next++; } - vlib_put_next_frame (vm, node, next_index, n_left_to_next); + vlib_set_trace_count (vm, node, n_trace); } - + vlib_buffer_enqueue_to_next (vm, node, buffer_indices, nexts, n_rx_packets); vlib_increment_combined_counter (vnm->interface_main.combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX, thr_idx, ad->hw_if_index, n_rx_packets, n_rx_bytes); +done: return n_rx_packets; } @@ -389,11 +525,7 @@ VLIB_NODE_FN (avf_input_node) (vlib_main_t * vm, vlib_node_runtime_t * node, ad = vec_elt_at_index (am->devices, dq->dev_instance); if ((ad->flags & AVF_DEVICE_F_ADMIN_UP) == 0) continue; - if (vnet_device_input_have_features (ad->sw_if_index) || - vlib_get_trace_count (vm, node)) - n_rx += avf_device_input_inline (vm, node, frame, ad, dq->queue_id, 1); - else - n_rx += avf_device_input_inline (vm, node, frame, ad, dq->queue_id, 0); + n_rx += avf_device_input_inline (vm, node, frame, ad, dq->queue_id); } return n_rx; } |