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

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5 #ifndef RTE_ETH_BOND_8023AD_H_
   6 #define RTE_ETH_BOND_8023AD_H_
   7
   8 #include <rte_ether.h>
   9
  10 #ifdef __cplusplus
  11 extern "C" {
  12 #endif
  13
  14 /**
  15  * Actor/partner states
  16  */
  17 #define STATE_LACP_ACTIVE                   0x01
  18 #define STATE_LACP_SHORT_TIMEOUT            0x02
  19 #define STATE_AGGREGATION                   0x04
  20 #define STATE_SYNCHRONIZATION               0x08
  21 #define STATE_COLLECTING                    0x10
  22 #define STATE_DISTRIBUTING                  0x20
  23 /** Partners parameters are defaulted */
  24 #define STATE_DEFAULTED                     0x40
  25 #define STATE_EXPIRED                       0x80
  26
  27 #define TLV_TYPE_ACTOR_INFORMATION          0x01
  28 #define TLV_TYPE_PARTNER_INFORMATION        0x02
  29 #define TLV_TYPE_COLLECTOR_INFORMATION      0x03
  30 #define TLV_TYPE_TERMINATOR_INFORMATION     0x00
  31
  32 #define SLOW_SUBTYPE_LACP                   0x01
  33 #define SLOW_SUBTYPE_MARKER                 0x02
  34
  35 #define MARKER_TLV_TYPE_INFO                0x01
  36 #define MARKER_TLV_TYPE_RESP                0x02
  37
  38 typedef void (*rte_eth_bond_8023ad_ext_slowrx_fn)(uint16_t slave_id,
  39                                                   struct rte_mbuf *lacp_pkt);
  40
  41 enum rte_bond_8023ad_selection {
  42         UNSELECTED,
  43         STANDBY,
  44         SELECTED
  45 };
  46
  47 enum rte_bond_8023ad_agg_selection {
  48         AGG_BANDWIDTH,
  49         AGG_COUNT,
  50         AGG_STABLE
  51 };
  52
  53 /** Generic slow protocol structure */
  54 struct slow_protocol {
  55         uint8_t subtype;
  56         uint8_t reserved_119[119];
  57 } __attribute__((__packed__));
  58
  59 /** Generic slow protocol frame type structure */
  60 struct slow_protocol_frame {
  61         struct ether_hdr eth_hdr;
  62         struct slow_protocol slow_protocol;
  63 } __attribute__((__packed__));
  64
  65 struct port_params {
  66         uint16_t system_priority;
  67         /**< System priority (unused in current implementation) */
  68         struct ether_addr system;
  69         /**< System ID - Slave MAC address, same as bonding MAC address */
  70         uint16_t key;
  71         /**< Speed information (implementation dependednt) and duplex. */
  72         uint16_t port_priority;
  73         /**< Priority of this (unused in current implementation) */
  74         uint16_t port_number;
  75         /**< Port number. It corresponds to slave port id. */
  76 } __attribute__((__packed__));
  77
  78 struct lacpdu_actor_partner_params {
  79         uint8_t tlv_type_info;
  80         uint8_t info_length;
  81         struct port_params port_params;
  82         uint8_t state;
  83         uint8_t reserved_3[3];
  84 } __attribute__((__packed__));
  85
  86 /** LACPDU structure (5.4.2 in 802.1AX documentation). */
  87 struct lacpdu {
  88         uint8_t subtype;
  89         uint8_t version_number;
  90
  91         struct lacpdu_actor_partner_params actor;
  92         struct lacpdu_actor_partner_params partner;
  93
  94         uint8_t tlv_type_collector_info;
  95         uint8_t collector_info_length;
  96         uint16_t collector_max_delay;
  97         uint8_t reserved_12[12];
  98
  99         uint8_t tlv_type_terminator;
 100         uint8_t terminator_length;
 101         uint8_t reserved_50[50];
 102 } __attribute__((__packed__));
 103
 104 /** LACPDU frame: Contains ethernet header and LACPDU. */
 105 struct lacpdu_header {
 106         struct ether_hdr eth_hdr;
 107         struct lacpdu lacpdu;
 108 } __attribute__((__packed__));
 109
 110 struct marker {
 111         uint8_t subtype;
 112         uint8_t version_number;
 113
 114         uint8_t tlv_type_marker;
 115         uint8_t info_length;
 116         uint16_t requester_port;
 117         struct ether_addr requester_system;
 118         uint32_t requester_transaction_id;
 119         uint8_t reserved_2[2];
 120
 121         uint8_t tlv_type_terminator;
 122         uint8_t terminator_length;
 123         uint8_t reserved_90[90];
 124 } __attribute__((__packed__));
 125
 126 struct marker_header {
 127         struct ether_hdr eth_hdr;
 128         struct marker marker;
 129 } __attribute__((__packed__));
 130
 131 struct rte_eth_bond_8023ad_conf {
 132         uint32_t fast_periodic_ms;
 133         uint32_t slow_periodic_ms;
 134         uint32_t short_timeout_ms;
 135         uint32_t long_timeout_ms;
 136         uint32_t aggregate_wait_timeout_ms;
 137         uint32_t tx_period_ms;
 138         uint32_t rx_marker_period_ms;
 139         uint32_t update_timeout_ms;
 140         rte_eth_bond_8023ad_ext_slowrx_fn slowrx_cb;
 141         enum rte_bond_8023ad_agg_selection agg_selection;
 142 };
 143
 144 struct rte_eth_bond_8023ad_slave_info {
 145         enum rte_bond_8023ad_selection selected;
 146         uint8_t actor_state;
 147         struct port_params actor;
 148         uint8_t partner_state;
 149         struct port_params partner;
 150         uint16_t agg_port_id;
 151 };
 152
 153 /**
 154  * @internal
 155  *
 156  * Function returns current configuration of 802.3AX mode.
 157  *
 158  * @param port_id   Bonding device id
 159  * @param conf          Pointer to timeout structure.
 160  *
 161  * @return
 162  *   0 - if ok
 163  *   -EINVAL if conf is NULL
 164  */
 165 int
 166 rte_eth_bond_8023ad_conf_get(uint16_t port_id,
 167                 struct rte_eth_bond_8023ad_conf *conf);
 168
 169 /**
 170  * @internal
 171  *
 172  * Function set new configuration of 802.3AX mode.
 173  *
 174  * @param port_id   Bonding device id
 175  * @param conf          Configuration, if NULL set default configuration.
 176  * @return
 177  *   0 - if ok
 178  *   -EINVAL if configuration is invalid.
 179  */
 180 int
 181 rte_eth_bond_8023ad_setup(uint16_t port_id,
 182                 struct rte_eth_bond_8023ad_conf *conf);
 183
 184 /**
 185  * @internal
 186  *
 187  * Function returns current state of given slave device.
 188  *
 189  * @param slave_id  Port id of valid slave.
 190  * @param conf          buffer for configuration
 191  * @return
 192  *   0 - if ok
 193  *   -EINVAL if conf is NULL or slave id is invalid (not a slave of given
 194  *       bonded device or is not inactive).
 195  */
 196 int
 197 rte_eth_bond_8023ad_slave_info(uint16_t port_id, uint16_t slave_id,
 198                 struct rte_eth_bond_8023ad_slave_info *conf);
 199
 200 #ifdef __cplusplus
 201 }
 202 #endif
 203
 204 /**
 205  * Configure a slave port to start collecting.
 206  *
 207  * @param port_id       Bonding device id
 208  * @param slave_id      Port id of valid slave.
 209  * @param enabled       Non-zero when collection enabled.
 210  * @return
 211  *   0 - if ok
 212  *   -EINVAL if slave is not valid.
 213  */
 214 int
 215 rte_eth_bond_8023ad_ext_collect(uint16_t port_id, uint16_t slave_id,
 216                                 int enabled);
 217
 218 /**
 219  * Get COLLECTING flag from slave port actor state.
 220  *
 221  * @param port_id       Bonding device id
 222  * @param slave_id      Port id of valid slave.
 223  * @return
 224  *   0 - if not set
 225  *   1 - if set
 226  *   -EINVAL if slave is not valid.
 227  */
 228 int
 229 rte_eth_bond_8023ad_ext_collect_get(uint16_t port_id, uint16_t slave_id);
 230
 231 /**
 232  * Configure a slave port to start distributing.
 233  *
 234  * @param port_id       Bonding device id
 235  * @param slave_id      Port id of valid slave.
 236  * @param enabled       Non-zero when distribution enabled.
 237  * @return
 238  *   0 - if ok
 239  *   -EINVAL if slave is not valid.
 240  */
 241 int
 242 rte_eth_bond_8023ad_ext_distrib(uint16_t port_id, uint16_t slave_id,
 243                                 int enabled);
 244
 245 /**
 246  * Get DISTRIBUTING flag from slave port actor state.
 247  *
 248  * @param port_id       Bonding device id
 249  * @param slave_id      Port id of valid slave.
 250  * @return
 251  *   0 - if not set
 252  *   1 - if set
 253  *   -EINVAL if slave is not valid.
 254  */
 255 int
 256 rte_eth_bond_8023ad_ext_distrib_get(uint16_t port_id, uint16_t slave_id);
 257
 258 /**
 259  * LACPDU transmit path for external 802.3ad state machine.  Caller retains
 260  * ownership of the packet on failure.
 261  *
 262  * @param port_id       Bonding device id
 263  * @param slave_id      Port ID of valid slave device.
 264  * @param lacp_pkt      mbuf containing LACPDU.
 265  *
 266  * @return
 267  *   0 on success, negative value otherwise.
 268  */
 269 int
 270 rte_eth_bond_8023ad_ext_slowtx(uint16_t port_id, uint16_t slave_id,
 271                 struct rte_mbuf *lacp_pkt);
 272
 273 /**
 274  * Enable dedicated hw queues for 802.3ad control plane traffic on on slaves
 275  *
 276  * This function creates an additional tx and rx queue on each slave for
 277  * dedicated 802.3ad control plane traffic . A flow filtering rule is
 278  * programmed on each slave to redirect all LACP slow packets to that rx queue
 279  * for processing in the LACP state machine, this removes the need to filter
 280  * these packets in the bonded devices data path. The additional tx queue is
 281  * used to enable the LACP state machine to enqueue LACP packets directly to
 282  * slave hw independently of the bonded devices data path.
 283  *
 284  * To use this feature all slaves must support the programming of the flow
 285  * filter rule required for rx and have enough queues that one rx and tx queue
 286  * can be reserved for the LACP state machines control packets.
 287  *
 288  * Bonding port must be stopped to change this configuration.
 289  *
 290  * @param port_id      Bonding device id
 291  *
 292  * @return
 293  *   0 on success, negative value otherwise.
 294  */
 295 int
 296 rte_eth_bond_8023ad_dedicated_queues_enable(uint16_t port_id);
 297
 298 /**
 299  * Disable slow queue on slaves
 300  *
 301  * This function disables hardware slow packet filter.
 302  *
 303  * Bonding port must be stopped to change this configuration.
 304  *
 305  * @see rte_eth_bond_8023ad_slow_pkt_hw_filter_enable
 306  *
 307  * @param port_id      Bonding device id
 308  * @return
 309  *   0 on success, negative value otherwise.
 310  *
 311  */
 312 int
 313 rte_eth_bond_8023ad_dedicated_queues_disable(uint16_t port_id);
 314
 315 /*
 316  * Get aggregator mode for 8023ad
 317  * @param port_id Bonding device id
 318  *
 319  * @return
 320  *   agregator mode on success, negative value otherwise
 321  */
 322 int
 323 rte_eth_bond_8023ad_agg_selection_get(uint16_t port_id);
 324
 325 /**
 326  * Set aggregator mode for 8023ad
 327  * @param port_id Bonding device id
 328  * @return
 329  *   0 on success, negative value otherwise
 330  */
 331 int
 332 rte_eth_bond_8023ad_agg_selection_set(uint16_t port_id,
 333                 enum rte_bond_8023ad_agg_selection agg_selection);
 334 #endif /* RTE_ETH_BOND_8023AD_H_ */