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authorDamjan Marion <damarion@cisco.com>2022-02-10 14:31:59 +0100
committerFlorin Coras <florin.coras@gmail.com>2022-02-10 15:45:56 +0000
commitbc0ef7aef5624fefdc5592f9a2c179993a78bfcc (patch)
treecccc70d53d601c6a3232fdd21d3829bf93783363 /src/vppinfra
parente01ce5ad5d93c2239d0885d4b9486ba10447a529 (diff)
vppinfra: clib_memcpy_may_overrun
Faster memcpy variant when overrun of up to SIMD register size - 1 is accepable. Type: improvement Change-Id: I1fb22e2989f2156caa9f34fa096e6ff9ea9ec7b6 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vppinfra')
-rw-r--r--src/vppinfra/memcpy.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/vppinfra/memcpy.h b/src/vppinfra/memcpy.h
index f3adc78d53d..e895cbf7485 100644
--- a/src/vppinfra/memcpy.h
+++ b/src/vppinfra/memcpy.h
@@ -6,6 +6,49 @@
#ifndef included_memcpy_h
#define included_memcpy_h
+static_always_inline void
+clib_memcpy_may_overrun (void *dst, void *src, u32 n_bytes)
+{
+ word n_left = n_bytes;
+#if defined(CLIB_HAVE_VEC512)
+ u8x64u *sv = (u8x64u *) src;
+ u8x64u *dv = (u8x64u *) dst;
+#elif defined(CLIB_HAVE_VEC256)
+ u8x32u *sv = (u8x32u *) src;
+ u8x32u *dv = (u8x32u *) dst;
+#elif defined(CLIB_HAVE_VEC128)
+ u8x16u *sv = (u8x16u *) src;
+ u8x16u *dv = (u8x16u *) dst;
+#else
+ u64u *sv = (u64u *) src;
+ u64u *dv = (u64u *) dst;
+#endif
+
+ while (n_left >= 4 * sizeof (sv[0]))
+ {
+ __typeof__ (*sv) v0, v1, v2, v3;
+ v0 = sv[0];
+ v1 = sv[1];
+ v2 = sv[2];
+ v3 = sv[3];
+ sv += 4;
+ n_left -= 4 * sizeof (sv[0]);
+ dv[0] = v0;
+ dv[1] = v1;
+ dv[2] = v2;
+ dv[3] = v3;
+ dv += 4;
+ }
+
+ while (n_left > 0)
+ {
+ dv[0] = sv[0];
+ sv += 1;
+ dv += 1;
+ n_left -= sizeof (sv[0]);
+ }
+}
+
#ifndef __COVERITY__
static_always_inline void
id='n218' href='#n218'>218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 
/*
 * Copyright (c) 2015-2020 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.
 */

option version = "4.0.0";

import "vnet/interface_types.api";
import "vnet/ip/ip_types.api";


enum transport_proto : u8
{
        TRANSPORT_PROTO_API_TCP,
        TRANSPORT_PROTO_API_UDP,
        TRANSPORT_PROTO_API_NONE,
        TRANSPORT_PROTO_API_TLS,
        TRANSPORT_PROTO_API_QUIC,
};

/** \brief Application attach to session layer
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param options - segment size, fifo sizes, etc.
    @param namespace_id - string
*/
 define app_attach {
    u32 client_index;
    u32 context;
    u64 options[18];
    string namespace_id[];
 };

/** \brief Application attach reply
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param app_mq - app message queue
    @param vpp_ctrl_mq - vpp message queue for control events that should
    					 be handled in main thread, i.e., bind/connect
    @param vpp_ctrl_mq_thread_index - thread index of the ctrl mq
    @param app_index - index of the newly created app
    @param n_fds - number of fds exchanged
    @param fd_flags - set of flags that indicate which fds are to be expected
    				  over the socket (set only if socket transport available)
    @param segment_size - size of first shm segment
    @param segment_handle - handle for segment
    @param segment_name - name of segment client needs to attach to
*/
define app_attach_reply {
    u32 context;
    i32 retval;
    u64 app_mq;
    u64 vpp_ctrl_mq;
    u8 vpp_ctrl_mq_thread;
    u32 app_index;
    u8 n_fds;
    u8 fd_flags;
    u32 segment_size;
    u64 segment_handle;
    string segment_name[];
};

/** \brief Application detach from session layer
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
autoreply define application_detach {
    u32 client_index;
    u32 context;
};

/** \brief Add certificate and key
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param engine - crypto engine
    @param cert_len - cert length (comes first)
    @param certkey_len - cert and key length
    @param certkey - cert & key data (due to API limitation)
*/
define app_add_cert_key_pair {
    u32 client_index;
    u32 context;
    u16 cert_len;
    u16 certkey_len;
    u8 certkey[certkey_len];
};

/** \brief Add certificate and key
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param index - index in certificate store
*/
define app_add_cert_key_pair_reply {
    u32 context;
    i32 retval;
    u32 index;
};

/** \brief Delete certificate and key
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param index - index in certificate store
*/
autoreply define app_del_cert_key_pair {
    u32 client_index;
    u32 context;
    u32 index;
};

/** \brief Application add TLS certificate
 	### WILL BE DEPRECATED POST 20.01 ###
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param cert_len - certificate length
    @param cert - certificate as a string
*/
autoreply define application_tls_cert_add {
    option deprecated="to be removed post 21.06";
    u32 client_index;
    u32 context;
    u32 app_index;
    u16 cert_len;
    u8 cert[cert_len];
};

/** \brief Application add TLS key
 	### WILL BE DEPRECATED POST 20.01 ###
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param key_len - certificate length
    @param key - PEM encoded key as a string
*/
autoreply define application_tls_key_add {
    option deprecated="to be removed post 21.06";
    u32 client_index;
    u32 context;
    u32 app_index;
    u16 key_len;
    u8 key[key_len];
};

/** \brief add/del application worker
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param app_index - application index
    @param wrk_index - worker index, if a delete
    @param is_add - set if an add
*/
define app_worker_add_del
{
  u32 client_index;
  u32 context;
  u32 app_index;
  u32 wrk_index;
  bool is_add [default=true];
};

/** \brief Reply for app worker add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
    @param wrk_index - worker index, if add
    @param app_event_queue_address - vpp event queue address of new worker
    @param n_fds - number of fds exchanged
    @param fd_flags - set of flags that indicate which fds are to be expected
    				  over the socket (set only if socket transport available)
    @param segment_handle - handle for segment
    @param is_add - add if non zero, else delete
    @param segment_name - name of segment client needs to attach to
*/
define app_worker_add_del_reply
{
  u32 context;
  i32 retval;
  u32 wrk_index;
  u64 app_event_queue_address;
  u8 n_fds;
  u8 fd_flags;
  u64 segment_handle;
  bool is_add [default=true];
  string segment_name[];
};

/** \brief enable/disable session layer
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param is_enable - disable session layer if 0, enable otherwise
*/
autoreply define session_enable_disable {
  u32 client_index;
  u32 context;
  bool is_enable [default=true];
};

/** \brief add/del application namespace
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param secret - secret shared between app and vpp
    @param sw_if_index - local interface that "supports" namespace. Set to
                         ~0 if no preference
    @param ip4_fib_id - id of ip4 fib that "supports" the namespace. Ignored
                        if sw_if_index set.
    @param ip6_fib_id - id of ip6 fib that "supports" the namespace. Ignored
                        if sw_if_index set.
    @param namespace_id - namespace id
*/
define app_namespace_add_del {
  option deprecated;
  u32 client_index;
  u32 context;
  u64 secret;
  vl_api_interface_index_t sw_if_index [default=0xffffffff];
  u32 ip4_fib_id;
  u32 ip6_fib_id;
  string namespace_id[];
};

/** \brief add/del application namespace
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param secret - secret shared between app and vpp
    @param sw_if_index - local interface that "supports" namespace. Set to
                         ~0 if no preference
    @param ip4_fib_id - id of ip4 fib that "supports" the namespace. Ignored
                        if sw_if_index set.
    @param ip6_fib_id - id of ip6 fib that "supports" the namespace. Ignored
                        if sw_if_index set.
    @param namespace_id - namespace id
    @param netns - linux net namespace
*/
define app_namespace_add_del_v2 {
  u32 client_index;
  u32 context;
  u64 secret;
  vl_api_interface_index_t sw_if_index [default=0xffffffff];
  u32 ip4_fib_id;
  u32 ip6_fib_id;
  string namespace_id[64];
  string netns[64];
};

/** \brief Reply for app namespace add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
    @param appns_index - app namespace index
*/
define app_namespace_add_del_reply
{
  option deprecated;
  u32 context;
  i32 retval;
  u32 appns_index;
};

/** \brief Reply for app namespace add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
    @param appns_index - app namespace index
*/
define app_namespace_add_del_v2_reply
{
  u32 context;
  i32 retval;
  u32 appns_index;
};

enum session_rule_scope {
	SESSION_RULE_SCOPE_API_GLOBAL = 0,
	SESSION_RULE_SCOPE_API_LOCAL = 1,
	SESSION_RULE_SCOPE_API_BOTH = 2,
};

/** \brief add/del session rule
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param transport_proto - transport protocol
    @param is_ip4 - flag to indicate if ip addresses are ip4 or 6
    @param lcl_ip - local ip
    @param lcl_plen - local prefix length
    @param rmt_ip - remote ip
    @param rmt_ple - remote prefix length
    @param lcl_port - local port
    @param rmt_port - remote port
    @param action_index - the only action defined now is forward to
                          application with index action_index
    @param is_add - flag to indicate if add or del
    @param appns_index - application namespace where rule is to be applied to
    @param scope - enum that indicates scope of the rule: global or local.
                   If 0, default is global, 1 is global 2 is local, 3 is both
    @param tag - tag
*/
autoreply define session_rule_add_del {
  u32 client_index;
  u32 context;
  vl_api_transport_proto_t transport_proto;
  vl_api_prefix_t lcl;
  vl_api_prefix_t rmt;
  u16 lcl_port;
  u16 rmt_port;
  u32 action_index;
  bool is_add [default=true];
  u32 appns_index;
  vl_api_session_rule_scope_t scope;
  string tag[64];
};

/** \brief Dump session rules
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
 */
define session_rules_dump
{
  u32 client_index;
  u32 context;
};

/** \brief Session rules details
    @param context - sender context, to match reply w/ request
    @param transport_proto - transport protocol
    @param is_ip4 - flag to indicate if ip addresses are ip4 or 6
    @param lcl_ip - local ip
    @param lcl_plen - local prefix length
    @param rmt_ip - remote ip
    @param rmt_ple - remote prefix length
    @param lcl_port - local port
    @param rmt_port - remote port
    @param action_index - the only action defined now is forward to
                          application with index action_index
    @param appns_index - application namespace where rule is to be applied to
    @param scope - enum that indicates scope of the rule: global or local.
                   If 0, default is global, 1 is global 2 is local, 3 is both
    @param tag - tag
  */
define session_rules_details
{
  u32 context;
  vl_api_transport_proto_t transport_proto;
  vl_api_prefix_t lcl;
  vl_api_prefix_t rmt;
  u16 lcl_port;
  u16 rmt_port;
  u32 action_index;
  u32 appns_index;
  vl_api_session_rule_scope_t scope;
  string tag[64];
};

/*
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */