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authorKai Ji <kai.ji@intel.com>2024-01-15 16:44:37 +0000
committerDamjan Marion <dmarion@0xa5.net>2024-01-16 22:03:43 +0000
commitebe2371e6a63823cb65ef928369068faf0f51d9a (patch)
treef956e0229ea1eb59ee0eec5086e268c8f8c47492 /src/plugins/dpdk
parentdbe9937b72a3752b112d7ab09e9c94c4cc4e55d3 (diff)
dpdk: add ID for QAT 4xxx series VF support
Type: feature Enable use of 4th gen QAT series devices. Change-Id: I890c1f1d305ff9b996322c29e9510cfe89d88d97 Signed-off-by: Kai Ji <kai.ji@intel.com>
Diffstat (limited to 'src/plugins/dpdk')
-rw-r--r--src/plugins/dpdk/device/init.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index c701631d930..789add58380 100644
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -641,7 +641,8 @@ dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
(d->device_id == 0x0443 || d->device_id == 0x18a1 ||
d->device_id == 0x19e3 || d->device_id == 0x37c9 ||
d->device_id == 0x6f55 || d->device_id == 0x18ef ||
- d->device_id == 0x4941))
+ d->device_id == 0x4941 || d->device_id == 0x4943 ||
+ d->device_id == 0x4945))
;
/* Cisco VIC */
else if (d->vendor_id == 0x1137 &&
85'>185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 
/*
 * decap.c : L2TPv3 tunnel decapsulation
 *
 * 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 <vppinfra/error.h>
#include <vppinfra/hash.h>
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/l2tp/l2tp.h>
#include <vnet/l2/l2_input.h>

/* Statistics (not really errors) */
#define foreach_l2t_decap_error                                 \
_(USER_TO_NETWORK, "L2TP user (ip6) to L2 network pkts")        \
_(SESSION_ID_MISMATCH, "l2tpv3 local session id mismatches")    \
_(COOKIE_MISMATCH, "l2tpv3 local cookie mismatches")            \
_(NO_SESSION, "l2tpv3 session not found")                       \
_(ADMIN_DOWN, "l2tpv3 tunnel is down")

static char *l2t_decap_error_strings[] = {
#define _(sym,string) string,
  foreach_l2t_decap_error
#undef _
};

typedef enum
{
#define _(sym,str) L2T_DECAP_ERROR_##sym,
  foreach_l2t_decap_error
#undef _
    L2T_DECAP_N_ERROR,
} l2t_DECAP_error_t;

typedef enum
{
  L2T_DECAP_NEXT_DROP,
  L2T_DECAP_NEXT_L2_INPUT,
  L2T_DECAP_N_NEXT,
  /* Pseudo next index */
  L2T_DECAP_NEXT_NO_INTERCEPT = L2T_DECAP_N_NEXT,
} l2t_decap_next_t;

#define NSTAGES 3

static inline void
stage0 (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_t * b)
{
  vlib_prefetch_buffer_header (b, STORE);
  /* l2tpv3 header is a long way away, need 2 cache lines */
  CLIB_PREFETCH (b->data, 2 * CLIB_CACHE_LINE_BYTES, STORE);
}

static inline void
stage1 (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_t * b)
{
  l2t_main_t *lm = &l2t_main;
  ip6_header_t *ip6 = vlib_buffer_get_current (b);
  u32 session_index;
  uword *p = 0;
  l2tpv3_header_t *l2t;

  /* Not L2tpv3 (0x73, 0t115)? Use the normal path. */
  if (PREDICT_FALSE (ip6->protocol != IP_PROTOCOL_L2TP))
    {
      vnet_buffer (b)->l2t.next_index = L2T_DECAP_NEXT_NO_INTERCEPT;
      return;
    }

  /* Make up your minds, people... */
  switch (lm->lookup_type)
    {
    case L2T_LOOKUP_SRC_ADDRESS:
      p = hash_get_mem (lm->session_by_src_address, &ip6->src_address);
      break;
    case L2T_LOOKUP_DST_ADDRESS:
      p = hash_get_mem (lm->session_by_dst_address, &ip6->dst_address);
      break;
    case L2T_LOOKUP_SESSION_ID:
      l2t = (l2tpv3_header_t *) (ip6 + 1);
      p = hash_get (lm->session_by_session_id, l2t->session_id);
      break;
    default:
      ASSERT (0);
    }

  if (PREDICT_FALSE (p == 0))
    {
      vnet_buffer (b)->l2t.next_index = L2T_DECAP_NEXT_NO_INTERCEPT;
      return;
    }
  else
    {
      session_index = p[0];
    }

  /* Remember mapping index, prefetch the mini counter */
  vnet_buffer (b)->l2t.next_index = L2T_DECAP_NEXT_L2_INPUT;
  vnet_buffer (b)->l2t.session_index = session_index;

  /* $$$$$ prefetch counter */
}

static inline u32
last_stage (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_t * b)
{
  l2t_main_t *lm = &l2t_main;
  ip6_header_t *ip6 = vlib_buffer_get_current (b);
  vlib_node_t *n = vlib_get_node (vm, node->node_index);
  u32 node_counter_base_index = n->error_heap_index;
  vlib_error_main_t *em = &vm->error_main;
  l2tpv3_header_t *l2tp;
  u32 counter_index;
  l2t_session_t *session = 0;
  u32 session_index;
  u32 next_index;
  u8 l2tp_decap_local = (l2t_decap_local_node.index == n->index);

  /* Other-than-output pkt? We're done... */
  if (vnet_buffer (b)->l2t.next_index != L2T_DECAP_NEXT_L2_INPUT)
    {
      next_index = vnet_buffer (b)->l2t.next_index;
      goto done;
    }

  em->counters[node_counter_base_index + L2T_DECAP_ERROR_USER_TO_NETWORK] +=
    1;

  session_index = vnet_buffer (b)->l2t.session_index;

  counter_index =
    session_index_to_counter_index (session_index,
				    SESSION_COUNTER_USER_TO_NETWORK);

  /* per-mapping byte stats include the ethernet header */
  vlib_increment_combined_counter (&lm->counter_main,
				   vlib_get_thread_index (),
				   counter_index, 1 /* packet_increment */ ,
				   vlib_buffer_length_in_chain (vm, b) +
				   sizeof (ethernet_header_t));

  session = pool_elt_at_index (lm->sessions, session_index);

  l2tp = vlib_buffer_get_current (b) + sizeof (*ip6);

  if (PREDICT_FALSE (l2tp->session_id != session->local_session_id))
    {
      /* Key matched but session id does not. Assume packet is not for us. */
      em->counters[node_counter_base_index +
		   L2T_DECAP_ERROR_SESSION_ID_MISMATCH] += 1;
      next_index = L2T_DECAP_NEXT_NO_INTERCEPT;
      goto done;
    }

  if (PREDICT_FALSE (l2tp->cookie != session->local_cookie[0]))
    {
      if (l2tp->cookie != session->local_cookie[1])
	{
	  /* Key and session ID matched, but cookie doesn't. Drop this packet. */
	  b->error = node->errors[L2T_DECAP_ERROR_COOKIE_MISMATCH];
	  next_index = L2T_DECAP_NEXT_DROP;
	  goto done;
	}
    }

  vnet_buffer (b)->sw_if_index[VLIB_RX] = session->sw_if_index;

  if (PREDICT_FALSE (!(session->admin_up)))
    {
      b->error = node->errors[L2T_DECAP_ERROR_ADMIN_DOWN];
      next_index = L2T_DECAP_NEXT_DROP;
      goto done;
    }

  /* strip the ip6 and L2TP header */
  vlib_buffer_advance (b, sizeof (*ip6) + session->l2tp_hdr_size);

  /* Required to make the l2 tag push / pop code work on l2 subifs */
  vnet_update_l2_len (b);

  if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
    {
      l2t_trace_t *t = vlib_add_trace (vm, node, b, sizeof (*t));
      t->is_user_to_network = 1;
      t->our_address.as_u64[0] = ip6->dst_address.as_u64[0];
      t->our_address.as_u64[1] = ip6->dst_address.as_u64[1];
      t->client_address.as_u64[0] = ip6->src_address.as_u64[0];
      t->client_address.as_u64[1] = ip6->src_address.as_u64[1];
      t->session_index = session_index;
    }

  return L2T_DECAP_NEXT_L2_INPUT;

done:
  if (next_index == L2T_DECAP_NEXT_NO_INTERCEPT)
    {
      /* Small behavioral change between l2tp-decap and l2tp-decap-local */
      if (l2tp_decap_local)
	{
	  b->error = node->errors[L2T_DECAP_ERROR_NO_SESSION];
	  next_index = L2T_DECAP_NEXT_DROP;
	}
      else
	{
	  /* Go to next node on the ip6 configuration chain */
	  if (PREDICT_TRUE (session != 0))
	    vnet_feature_next (&next_index, b);
	}
    }

  if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
    {
      l2t_trace_t *t = vlib_add_trace (vm, node, b, sizeof (*t));
      t->is_user_to_network = 1;
      t->our_address.as_u64[0] = ip6->dst_address.as_u64[0];
      t->our_address.as_u64[1] = ip6->dst_address.as_u64[1];
      t->client_address.as_u64[0] = ip6->src_address.as_u64[0];
      t->client_address.as_u64[1] = ip6->src_address.as_u64[1];
      t->session_index = ~0;
    }
  return next_index;
}

#include <vnet/pipeline.h>

VLIB_NODE_FN (l2t_decap_node) (vlib_main_t * vm,
			       vlib_node_runtime_t * node,
			       vlib_frame_t * frame)
{
  return dispatch_pipeline (vm, node, frame);
}

/*
 * l2tp-decap and l2tp-decap-local have very slightly different behavior.
 * When a packet has no associated session l2tp-decap let it go to ip6 forward,
 * while l2tp-decap-local drops it.
 */

/* *INDENT-OFF* */
VLIB_REGISTER_NODE (l2t_decap_node) = {
  .name = "l2tp-decap",
  .vector_size = sizeof (u32),
  .format_trace = format_l2t_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,

  .n_errors = ARRAY_LEN(l2t_decap_error_strings),
  .error_strings = l2t_decap_error_strings,

  .n_next_nodes = L2T_DECAP_N_NEXT,

  /* edit / add dispositions here */
  .next_nodes = {
        [L2T_DECAP_NEXT_L2_INPUT] = "l2-input",
        [L2T_DECAP_NEXT_DROP] = "error-drop",
  },
};
/* *INDENT-ON* */

extern vlib_node_function_t l2t_decap_node_fn;

/* *INDENT-OFF* */
VLIB_REGISTER_NODE (l2t_decap_local_node) = {
  .function = l2t_decap_node_fn,
  .name = "l2tp-decap-local",
  .vector_size = sizeof (u32),
  .format_trace = format_l2t_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,

  .n_errors = ARRAY_LEN(l2t_decap_error_strings),
  .error_strings = l2t_decap_error_strings,

  .n_next_nodes = L2T_DECAP_N_NEXT,

  /* edit / add dispositions here */
  .next_nodes = {
    [L2T_DECAP_NEXT_L2_INPUT] = "l2-input",
    [L2T_DECAP_NEXT_DROP] = "error-drop",
  },
};
/* *INDENT-ON* */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */