dpdk: Enable bnxt PMD - vpp - Vector Packet Processing

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author	Andy Gospodarek <gospo@broadcom.com>	2019-11-12 17:55:01 -0500
committer	Damjan Marion <dmarion@me.com>	2019-11-14 19:31:50 +0000
commit	c3731ac89ddefe0b212511aeeb6bc116a1220816 (patch)
tree	4be2d338f8fc5342261c202e23430e051f2973e7 /src/plugins/dpdk/device/init.c
parent	f41244f423a44c6d295895b011eec4bbeef08a8d (diff)

dpdk: Enable bnxt PMD

This adds support to compile the bnxt PMD that supports Broadcom's 10/25/40/50/100/200 Gbps NICs. Tested with modified DPDK driver on x86_64 and aarch64 targets that is pending upstream acceptance, but should compile just fine today. Type: feature Signed-off-by: Andy Gospodarek <gospo@broadcom.com> Change-Id: I735a991c4cae4fa77e5605094facea54b781a1db

Diffstat (limited to 'src/plugins/dpdk/device/init.c')

-rw-r--r--

src/plugins/dpdk/device/init.c

1 files changed, 14 insertions, 0 deletions

/* * l2_output.c : layer 2 output packet processing * * Copyright (c) 2013 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <vlib/vlib.h> #include <vnet/vnet.h> #include <vnet/pg/pg.h> #include <vnet/ethernet/ethernet.h> #include <vlib/cli.h> #include <vppinfra/error.h> #include <vppinfra/hash.h> #include <vnet/l2/feat_bitmap.h> #include <vnet/l2/l2_output.h> #ifndef CLIB_MARCH_VARIANT /* Feature graph node names */ static char *l2output_feat_names[] = { #define _(sym,name) name, foreach_l2output_feat #undef _ }; char ** l2output_get_feat_names (void) { return l2output_feat_names; } u8 * format_l2_output_features (u8 * s, va_list * args) { static char *display_names[] = { #define _(sym,name) #sym, foreach_l2output_feat #undef _ }; u32 feature_bitmap = va_arg (*args, u32); if (feature_bitmap == 0) { s = format (s, " none configured"); return s; } int i; for (i = L2OUTPUT_N_FEAT - 1; i >= 0; i--) if (feature_bitmap & (1 << i)) s = format (s, "%10s (%s)\n", display_names[i], l2output_feat_names[i]); return s; } l2output_main_t l2output_main; #endif typedef struct { /* per-pkt trace data */ u8 src[6]; u8 dst[6]; u32 sw_if_index; u8 raw[12]; /* raw data */ } l2output_trace_t; #ifndef CLIB_MARCH_VARIANT /* packet trace format function */ static u8 * format_l2output_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 *); l2output_trace_t *t = va_arg (*args, l2output_trace_t *); s = format (s, "l2-output: sw_if_index %d dst %U src %U data " "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x", t->sw_if_index, format_ethernet_address, t->dst, format_ethernet_address, t->src, t->raw[0], t->raw[1], t->raw[2], t->raw[3], t->raw[4], t->raw[5], t->raw[6], t->raw[7], t->raw[8], t->raw[9], t->raw[10], t->raw[11]); return s; } static char *l2output_error_strings[] = { #define _(sym,string) string, foreach_l2output_error #undef _ }; #endif /** * Check for split horizon violations. * Return 0 if split horizon check passes, otherwise return non-zero. * Packets should not be transmitted out an interface with the same * split-horizon group as the input interface, except if the @c shg is 0 * in which case the check always passes. */ static_always_inline void split_horizon_violation (vlib_node_runtime_t * node, u8 shg, vlib_buffer_t * b, u16 * next) { if (shg != vnet_buffer (b)->l2.shg) return; next[0] = L2OUTPUT_NEXT_DROP; b->error = node->errors[L2OUTPUT_ERROR_SHG_DROP]; } static_always_inline void l2output_process_batch_inline (vlib_main_t * vm, vlib_node_runtime_t * node, l2_output_config_t * config, vlib_buffer_t ** b, i16 * cdo, u16 * next, u32 n_left, int l2_efp, int l2_vtr, int l2_pbb, int shg_set, int update_feature_bitmap) { while (n_left >= 8) { vlib_prefetch_buffer_header (b[4], LOAD); vlib_prefetch_buffer_header (b[5], LOAD); vlib_prefetch_buffer_header (b[6], LOAD); vlib_prefetch_buffer_header (b[7], LOAD); /* prefetch eth headers only if we need to touch them */ if (l2_vtr || l2_pbb || shg_set) { CLIB_PREFETCH (b[4]->data + cdo[4], CLIB_CACHE_LINE_BYTES, LOAD); CLIB_PREFETCH (b[5]->data + cdo[5], CLIB_CACHE_LINE_BYTES, LOAD); CLIB_PREFETCH (b[6]->data + cdo[6], CLIB_CACHE_LINE_BYTES, LOAD); CLIB_PREFETCH (b[7]->data + cdo[7], CLIB_CACHE_LINE_BYTES, LOAD); } if (update_feature_bitmap) { vnet_buffer (b[0])->l2.feature_bitmap = config->feature_bitmap; vnet_buffer (b[1])->l2.feature_bitmap = config->feature_bitmap; vnet_buffer (b[2])->l2.feature_bitmap = config->feature_bitmap; vnet_buffer (b[3])->l2.feature_bitmap = config->feature_bitmap; } if (l2_vtr) { int i; for (i = 0; i < 4; i++) { u32 failed1 = l2_efp && l2_efp_filter_process (b[i], &(config->input_vtr)); u32 failed2 = l2_vtr_process (b[i], &(config->output_vtr)); if (PREDICT_FALSE (failed1 | failed2)) { next[i] = L2OUTPUT_NEXT_DROP; if (failed2) b[i]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP]; if (failed1) b[i]->error = node->errors[L2OUTPUT_ERROR_EFP_DROP]; } } } if (l2_pbb) { int i; for (i = 0; i < 4; i++) if (l2_pbb_process (b[i], &(config->output_pbb_vtr))) { next[i] = L2OUTPUT_NEXT_DROP; b[i]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP]; } } if (shg_set) { split_horizon_violation (node, config->shg, b[0], next); split_horizon_violation (node, config->shg, b[1], next + 1); split_horizon_violation (node, config->shg, b[2], next + 2); split_horizon_violation (node, config->shg, b[3], next + 3); } /* next */ n_left -= 4; b += 4; next += 4; cdo += 4; } while (n_left) { if (update_feature_bitmap) vnet_buffer (b[0])->l2.feature_bitmap = config->feature_bitmap; if (l2_vtr) { u32 failed1 = l2_efp && l2_efp_filter_process (b[0], &(config->input_vtr)); u32 failed2 = l2_vtr_process (b[0], &(config->output_vtr)); if (PREDICT_FALSE (failed1 | failed2)) { *next = L2OUTPUT_NEXT_DROP; if (failed2) b[0]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP]; if (failed1) b[0]->error = node->errors[L2OUTPUT_ERROR_EFP_DROP]; } } if (l2_pbb && l2_pbb_process (b[0], &(config->output_pbb_vtr))) { next[0] = L2OUTPUT_NEXT_DROP; b[0]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP]; } if (shg_set) split_horizon_violation (node, config->shg, b[0], next); /* next */ n_left -= 1; b += 1; next += 1; } } static_always_inline void l2output_set_buffer_error (vlib_buffer_t ** b, u32 n_left, vlib_error_t error) { while (n_left >= 8) { vlib_prefetch_buffer_header (b[4], LOAD); vlib_prefetch_buffer_header (b[5], LOAD); vlib_prefetch_buffer_header (b[6], LOAD); vlib_prefetch_buffer_header (b[7], LOAD); b[0]->error = b[1]->error = b[2]->error = b[3]->error = error; b += 4; n_left -= 4; } while (n_left) { b[0]->error = error; b += 1; n_left -= 1; } } static_always_inline void l2output_process_batch (vlib_main_t * vm, vlib_node_runtime_t * node, l2_output_config_t * config, vlib_buffer_t ** b, i16 * cdo, u16 * next, u32 n_left, int l2_efp, int l2_vtr, int l2_pbb) { u32 feature_bitmap = config->feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT; if (config->shg == 0 && feature_bitmap == 0) l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left, l2_efp, l2_vtr, l2_pbb, 0, 0); else if (config->shg == 0) l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left, l2_efp, l2_vtr, l2_pbb, 0, 1); else if (feature_bitmap == 0) l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left, l2_efp, l2_vtr, l2_pbb, 1, 0); else l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left, l2_efp, l2_vtr, l2_pbb, 1, 1); } VLIB_NODE_FN (l2output_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left, *from; l2output_main_t *msm = &l2output_main; vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b; u16 nexts[VLIB_FRAME_SIZE]; u32 sw_if_indices[VLIB_FRAME_SIZE], *sw_if_index; i16 cur_data_offsets[VLIB_FRAME_SIZE], *cdo; l2_output_config_t *config; u32 feature_bitmap; from = vlib_frame_vector_args (frame); n_left = frame->n_vectors; /* number of packets to process */ vlib_get_buffers (vm, from, bufs, n_left); b = bufs; sw_if_index = sw_if_indices; cdo = cur_data_offsets; /* extract data from buffer metadata */ while (n_left >= 8) { /* Prefetch the buffer header for the N+2 loop iteration */ vlib_prefetch_buffer_header (b[4], LOAD); vlib_prefetch_buffer_header (b[5], LOAD); vlib_prefetch_buffer_header (b[6], LOAD); vlib_prefetch_buffer_header (b[7], LOAD); sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; cdo[0] = b[0]->current_data; sw_if_index[1] = vnet_buffer (b[1])->sw_if_index[VLIB_TX]; cdo[1] = b[1]->current_data; sw_if_index[2] = vnet_buffer (b[2])->sw_if_index[VLIB_TX]; cdo[2] = b[2]->current_data; sw_if_index[3] = vnet_buffer (b[3])->sw_if_index[VLIB_TX]; cdo[3] = b[3]->current_data; /* next */ sw_if_index += 4; n_left -= 4; b += 4; cdo += 4; } while (n_left) { sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; cdo[0] = b[0]->current_data; /* next */ sw_if_index += 1; n_left -= 1; b += 1; cdo += 1; } n_left = frame->n_vectors; while (n_left) { u16 count, new_next, *next; u16 off = frame->n_vectors - n_left; b = bufs + off; if (n_left >= 4) { vlib_prefetch_buffer_header (b[0], LOAD); vlib_prefetch_buffer_header (b[1], LOAD); vlib_prefetch_buffer_header (b[2], LOAD); vlib_prefetch_buffer_header (b[3], LOAD); } sw_if_index = sw_if_indices + off; cdo = cur_data_offsets + off; next = nexts + off; count = clib_count_equal_u32 (sw_if_index, n_left); n_left -= count; config = vec_elt_at_index (msm->configs, sw_if_index[0]); feature_bitmap = config->feature_bitmap; if (PREDICT_FALSE ((feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT) != 0)) new_next = feat_bitmap_get_next_node_index (l2output_main.l2_out_feat_next, feature_bitmap); else new_next = vec_elt (l2output_main.output_node_index_vec, sw_if_index[0]); clib_memset_u16 (nexts + off, new_next, count); if (new_next == L2OUTPUT_NEXT_DROP) { l2output_set_buffer_error (b, count, node->errors[L2OUTPUT_ERROR_MAPPING_DROP]); continue; } /* VTR */ if (config->out_vtr_flag && config->output_vtr.push_and_pop_bytes) { if (feature_bitmap & L2OUTPUT_FEAT_EFP_FILTER) l2output_process_batch (vm, node, config, b, cdo, next, count, /* l2_efp */ 1, /* l2_vtr */ 1, /* l2_pbb */ 0); else l2output_process_batch (vm, node, config, b, cdo, next, count, /* l2_efp */ 0, /* l2_vtr */ 1, /* l2_pbb */ 0); } else if (config->out_vtr_flag && config->output_pbb_vtr.push_and_pop_bytes) l2output_process_batch (vm, node, config, b, cdo, next, count, /* l2_efp */ 0, /* l2_vtr */ 0, /* l2_pbb */ 1); else l2output_process_batch (vm, node, config, b, cdo, next, count, /* l2_efp */ 0, /* l2_vtr */ 0, /* l2_pbb */ 0); } if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) { n_left = frame->n_vectors; /* number of packets to process */ b = bufs; while (n_left) { if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED)) { ethernet_header_t *h; l2output_trace_t *t = vlib_add_trace (vm, node, b[0], sizeof (*t)); t->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; h = vlib_buffer_get_current (b[0]); clib_memcpy (t->src, h->src_address, 6); clib_memcpy (t->dst, h->dst_address, 6); clib_memcpy (t->raw, &h->type, sizeof (t->raw)); } /* next */ n_left--; b++; } } vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors); vlib_node_increment_counter (vm, l2output_node.index, L2OUTPUT_ERROR_L2OUTPUT, frame->n_vectors); return frame->n_vectors; } #ifndef CLIB_MARCH_VARIANT /* *INDENT-OFF* */ VLIB_REGISTER_NODE (l2output_node) = { .name = "l2-output", .vector_size = sizeof (u32), .format_trace = format_l2output_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(l2output_error_strings), .error_strings = l2output_error_strings, .n_next_nodes = L2OUTPUT_N_NEXT, /* edit / add dispositions here */ .next_nodes = { [L2OUTPUT_NEXT_DROP] = "error-drop", [L2OUTPUT_NEXT_BAD_INTF] = "l2-output-bad-intf", }, }; /* *INDENT-ON* */ #define foreach_l2output_bad_intf_error \ _(DROP, "L2 output to interface not in L2 mode or deleted") static char *l2output_bad_intf_error_strings[] = { #define _(sym,string) string, foreach_l2output_bad_intf_error #undef _ }; typedef enum { #define _(sym,str) L2OUTPUT_BAD_INTF_ERROR_##sym, foreach_l2output_bad_intf_error #undef _ L2OUTPUT_BAD_INTF_N_ERROR, } l2output_bad_intf_error_t; /** * Output node for interfaces/tunnels which was in L2 mode but were changed * to L3 mode or possibly deleted thereafter. On changing forwarding mode * of any tunnel/interface from L2 to L3, its entry in l2_output_main table * next_nodes.output_node_index_vec[sw_if_index] MUST be set to the value of * L2OUTPUT_NEXT_BAD_INTF. Thus, if there are stale entries in the L2FIB for * this sw_if_index, l2-output will send packets for this sw_if_index to the * l2-output-bad-intf node which just setup the proper drop reason before * sending packets to the error-drop node to drop the packet. Then, stale L2FIB * entries for delted tunnels won't cause possible packet or memory corrpution. */ static vlib_node_registration_t l2output_bad_intf_node; static uword l2output_bad_intf_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left_from, *from, *to_next; l2output_next_t next_index = 0; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; /* number of packets to process */ while (n_left_from > 0) { u32 n_left_to_next; /* get space to enqueue frame to graph node "next_index" */ 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; to_next[0] = bi0 = from[0]; to_next[1] = bi1 = from[1]; from += 2; to_next += 2; n_left_from -= 2; n_left_to_next -= 2; b0 = vlib_get_buffer (vm, bi0); b1 = vlib_get_buffer (vm, bi1); b0->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP]; b1->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP]; } while (n_left_from > 0 && n_left_to_next > 0) { u32 bi0; vlib_buffer_t *b0; bi0 = from[0]; to_next[0] = bi0; from += 1; to_next += 1; n_left_from -= 1; n_left_to_next -= 1; b0 = vlib_get_buffer (vm, bi0); b0->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP]; } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } return frame->n_vectors; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (l2output_bad_intf_node,static) = { .function = l2output_bad_intf_node_fn, .name = "l2-output-bad-intf", .vector_size = sizeof (u32), .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(l2output_bad_intf_error_strings), .error_strings = l2output_bad_intf_error_strings, .n_next_nodes = 1, /* edit / add dispositions here */ .next_nodes = { [0] = "error-drop", }, }; VLIB_NODE_FUNCTION_MULTIARCH (l2output_bad_intf_node, l2output_bad_intf_node_fn); /* *INDENT-ON* */ static clib_error_t * l2output_init (vlib_main_t * vm) { l2output_main_t *mp = &l2output_main; mp->vlib_main = vm; mp->vnet_main = vnet_get_main (); /* Create the config vector */ vec_validate (mp->configs, 100); /* Until we hook up the CLI config, just create 100 sw interface entries and zero them */ /* Initialize the feature next-node indexes */ feat_bitmap_init_next_nodes (vm, l2output_node.index, L2OUTPUT_N_FEAT, l2output_get_feat_names (), mp->l2_out_feat_next); /* Initialize the output node mapping table */ vec_validate_init_empty (mp->output_node_index_vec, 100, L2OUTPUT_NEXT_DROP); return 0; } VLIB_INIT_FUNCTION (l2output_init); /** Create a mapping in the next node mapping table for the given sw_if_index. */ void l2output_create_output_node_mapping (vlib_main_t * vlib_main, vnet_main_t * vnet_main, u32 sw_if_index) { vnet_hw_interface_t *hw0 = vnet_get_sup_hw_interface (vnet_main, sw_if_index); /* dynamically create graph node arc */ u32 next = vlib_node_add_next (vlib_main, l2output_node.index, hw0->output_node_index); l2output_main.output_node_index_vec[sw_if_index] = next; } /* Get a pointer to the config for the given interface */ l2_output_config_t * l2output_intf_config (u32 sw_if_index) { l2output_main_t *mp = &l2output_main; vec_validate (mp->configs, sw_if_index); return vec_elt_at_index (mp->configs, sw_if_index); } /** Enable (or disable) the feature in the bitmap for the given interface. */ void l2output_intf_bitmap_enable (u32 sw_if_index, u32 feature_bitmap, u32 enable) { l2output_main_t *mp = &l2output_main; l2_output_config_t *config; vec_validate (mp->configs, sw_if_index); config = vec_elt_at_index (mp->configs, sw_if_index); if (enable) { config->feature_bitmap |= feature_bitmap; } else { config->feature_bitmap &= ~feature_bitmap; } } #endif /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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