ceph/src/dpdk/drivers/net/bonding/rte_eth_bond_8023ad.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef RTE_ETH_BOND_8023AD_H_
  35 #define RTE_ETH_BOND_8023AD_H_
  36
  37 #include <rte_ether.h>
  38
  39 #ifdef __cplusplus
  40 extern "C" {
  41 #endif
  42
  43 /**
  44  * Actor/partner states
  45  */
  46 #define STATE_LACP_ACTIVE                   0x01
  47 #define STATE_LACP_SHORT_TIMEOUT            0x02
  48 #define STATE_AGGREGATION                   0x04
  49 #define STATE_SYNCHRONIZATION               0x08
  50 #define STATE_COLLECTING                    0x10
  51 #define STATE_DISTRIBUTING                  0x20
  52 /** Partners parameters are defaulted */
  53 #define STATE_DEFAULTED                     0x40
  54 #define STATE_EXPIRED                       0x80
  55
  56 #define TLV_TYPE_ACTOR_INFORMATION          0x01
  57 #define TLV_TYPE_PARTNER_INFORMATION        0x02
  58 #define TLV_TYPE_COLLECTOR_INFORMATION      0x03
  59 #define TLV_TYPE_TERMINATOR_INFORMATION     0x00
  60
  61 #define SLOW_SUBTYPE_LACP                   0x01
  62 #define SLOW_SUBTYPE_MARKER                 0x02
  63
  64 #define MARKER_TLV_TYPE_INFO                0x01
  65 #define MARKER_TLV_TYPE_RESP                0x02
  66
  67 typedef void (*rte_eth_bond_8023ad_ext_slowrx_fn)(uint8_t slave_id,
  68                                                   struct rte_mbuf *lacp_pkt);
  69
  70 enum rte_bond_8023ad_selection {
  71         UNSELECTED,
  72         STANDBY,
  73         SELECTED
  74 };
  75
  76 /** Generic slow protocol structure */
  77 struct slow_protocol {
  78         uint8_t subtype;
  79         uint8_t reserved_119[119];
  80 } __attribute__((__packed__));
  81
  82 /** Generic slow protocol frame type structure */
  83 struct slow_protocol_frame {
  84         struct ether_hdr eth_hdr;
  85         struct slow_protocol slow_protocol;
  86 } __attribute__((__packed__));
  87
  88 struct port_params {
  89         uint16_t system_priority;
  90         /**< System priority (unused in current implementation) */
  91         struct ether_addr system;
  92         /**< System ID - Slave MAC address, same as bonding MAC address */
  93         uint16_t key;
  94         /**< Speed information (implementation dependednt) and duplex. */
  95         uint16_t port_priority;
  96         /**< Priority of this (unused in current implementation) */
  97         uint16_t port_number;
  98         /**< Port number. It corresponds to slave port id. */
  99 } __attribute__((__packed__));
 100
 101 struct lacpdu_actor_partner_params {
 102         uint8_t tlv_type_info;
 103         uint8_t info_length;
 104         struct port_params port_params;
 105         uint8_t state;
 106         uint8_t reserved_3[3];
 107 } __attribute__((__packed__));
 108
 109 /** LACPDU structure (5.4.2 in 802.1AX documentation). */
 110 struct lacpdu {
 111         uint8_t subtype;
 112         uint8_t version_number;
 113
 114         struct lacpdu_actor_partner_params actor;
 115         struct lacpdu_actor_partner_params partner;
 116
 117         uint8_t tlv_type_collector_info;
 118         uint8_t collector_info_length;
 119         uint16_t collector_max_delay;
 120         uint8_t reserved_12[12];
 121
 122         uint8_t tlv_type_terminator;
 123         uint8_t terminator_length;
 124         uint8_t reserved_50[50];
 125 } __attribute__((__packed__));
 126
 127 /** LACPDU frame: Contains ethernet header and LACPDU. */
 128 struct lacpdu_header {
 129         struct ether_hdr eth_hdr;
 130         struct lacpdu lacpdu;
 131 } __attribute__((__packed__));
 132
 133 struct marker {
 134         uint8_t subtype;
 135         uint8_t version_number;
 136
 137         uint8_t tlv_type_marker;
 138         uint8_t info_length;
 139         uint16_t requester_port;
 140         struct ether_addr requester_system;
 141         uint32_t requester_transaction_id;
 142         uint8_t reserved_2[2];
 143
 144         uint8_t tlv_type_terminator;
 145         uint8_t terminator_length;
 146         uint8_t reserved_90[90];
 147 } __attribute__((__packed__));
 148
 149 struct marker_header {
 150         struct ether_hdr eth_hdr;
 151         struct marker marker;
 152 } __attribute__((__packed__));
 153
 154 struct rte_eth_bond_8023ad_conf {
 155         uint32_t fast_periodic_ms;
 156         uint32_t slow_periodic_ms;
 157         uint32_t short_timeout_ms;
 158         uint32_t long_timeout_ms;
 159         uint32_t aggregate_wait_timeout_ms;
 160         uint32_t tx_period_ms;
 161         uint32_t rx_marker_period_ms;
 162         uint32_t update_timeout_ms;
 163         rte_eth_bond_8023ad_ext_slowrx_fn slowrx_cb;
 164 };
 165
 166 struct rte_eth_bond_8023ad_slave_info {
 167         enum rte_bond_8023ad_selection selected;
 168         uint8_t actor_state;
 169         struct port_params actor;
 170         uint8_t partner_state;
 171         struct port_params partner;
 172         uint8_t agg_port_id;
 173 };
 174
 175 /**
 176  * @internal
 177  *
 178  * Function returns current configuration of 802.3AX mode.
 179  *
 180  * @param port_id   Bonding device id
 181  * @param conf          Pointer to timeout structure.
 182  *
 183  * @return
 184  *   0 - if ok
 185  *   -EINVAL if conf is NULL
 186  */
 187 int
 188 rte_eth_bond_8023ad_conf_get(uint8_t port_id,
 189                 struct rte_eth_bond_8023ad_conf *conf);
 190 int
 191 rte_eth_bond_8023ad_conf_get_v20(uint8_t port_id,
 192                 struct rte_eth_bond_8023ad_conf *conf);
 193 int
 194 rte_eth_bond_8023ad_conf_get_v1607(uint8_t port_id,
 195                 struct rte_eth_bond_8023ad_conf *conf);
 196
 197 /**
 198  * @internal
 199  *
 200  * Function set new configuration of 802.3AX mode.
 201  *
 202  * @param port_id   Bonding device id
 203  * @param conf          Configuration, if NULL set default configuration.
 204  * @return
 205  *   0 - if ok
 206  *   -EINVAL if configuration is invalid.
 207  */
 208 int
 209 rte_eth_bond_8023ad_setup(uint8_t port_id,
 210                 struct rte_eth_bond_8023ad_conf *conf);
 211 int
 212 rte_eth_bond_8023ad_setup_v20(uint8_t port_id,
 213                 struct rte_eth_bond_8023ad_conf *conf);
 214 int
 215 rte_eth_bond_8023ad_setup_v1607(uint8_t port_id,
 216                 struct rte_eth_bond_8023ad_conf *conf);
 217
 218 /**
 219  * @internal
 220  *
 221  * Function returns current state of given slave device.
 222  *
 223  * @param slave_id  Port id of valid slave.
 224  * @param conf          buffer for configuration
 225  * @return
 226  *   0 - if ok
 227  *   -EINVAL if conf is NULL or slave id is invalid (not a slave of given
 228  *       bonded device or is not inactive).
 229  */
 230 int
 231 rte_eth_bond_8023ad_slave_info(uint8_t port_id, uint8_t slave_id,
 232                 struct rte_eth_bond_8023ad_slave_info *conf);
 233
 234 #ifdef __cplusplus
 235 }
 236 #endif
 237
 238 /**
 239  * Configure a slave port to start collecting.
 240  *
 241  * @param port_id       Bonding device id
 242  * @param slave_id      Port id of valid slave.
 243  * @param enabled       Non-zero when collection enabled.
 244  * @return
 245  *   0 - if ok
 246  *   -EINVAL if slave is not valid.
 247  */
 248 int
 249 rte_eth_bond_8023ad_ext_collect(uint8_t port_id, uint8_t slave_id, int enabled);
 250
 251 /**
 252  * Get COLLECTING flag from slave port actor state.
 253  *
 254  * @param port_id       Bonding device id
 255  * @param slave_id      Port id of valid slave.
 256  * @return
 257  *   0 - if not set
 258  *   1 - if set
 259  *   -EINVAL if slave is not valid.
 260  */
 261 int
 262 rte_eth_bond_8023ad_ext_collect_get(uint8_t port_id, uint8_t slave_id);
 263
 264 /**
 265  * Configure a slave port to start distributing.
 266  *
 267  * @param port_id       Bonding device id
 268  * @param slave_id      Port id of valid slave.
 269  * @param enabled       Non-zero when distribution enabled.
 270  * @return
 271  *   0 - if ok
 272  *   -EINVAL if slave is not valid.
 273  */
 274 int
 275 rte_eth_bond_8023ad_ext_distrib(uint8_t port_id, uint8_t slave_id, int enabled);
 276
 277 /**
 278  * Get DISTRIBUTING flag from slave port actor state.
 279  *
 280  * @param port_id       Bonding device id
 281  * @param slave_id      Port id of valid slave.
 282  * @return
 283  *   0 - if not set
 284  *   1 - if set
 285  *   -EINVAL if slave is not valid.
 286  */
 287 int
 288 rte_eth_bond_8023ad_ext_distrib_get(uint8_t port_id, uint8_t slave_id);
 289
 290 /**
 291  * LACPDU transmit path for external 802.3ad state machine.  Caller retains
 292  * ownership of the packet on failure.
 293  *
 294  * @param port_id       Bonding device id
 295  * @param slave_id      Port ID of valid slave device.
 296  * @param lacp_pkt      mbuf containing LACPDU.
 297  *
 298  * @return
 299  *   0 on success, negative value otherwise.
 300  */
 301 int
 302 rte_eth_bond_8023ad_ext_slowtx(uint8_t port_id, uint8_t slave_id,
 303                 struct rte_mbuf *lacp_pkt);
 304
 305 #endif /* RTE_ETH_BOND_8023AD_H_ */