4 * Copyright 2015 6WIND S.A.
5 * Copyright 2015 Mellanox.
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40 #include <netinet/in.h>
42 #include <sys/ioctl.h>
43 #include <arpa/inet.h>
46 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
48 #pragma GCC diagnostic ignored "-pedantic"
50 #include <infiniband/verbs.h>
52 #pragma GCC diagnostic error "-pedantic"
55 /* DPDK headers don't like -pedantic. */
57 #pragma GCC diagnostic ignored "-pedantic"
59 #include <rte_ether.h>
60 #include <rte_ethdev.h>
61 #include <rte_common.h>
63 #pragma GCC diagnostic error "-pedantic"
67 #include "mlx5_utils.h"
68 #include "mlx5_rxtx.h"
69 #include "mlx5_defs.h"
72 * Get MAC address by querying netdevice.
75 * struct priv for the requested device.
77 * MAC address output buffer.
80 * 0 on success, -1 on failure and errno is set.
83 priv_get_mac(struct priv *priv, uint8_t (*mac)[ETHER_ADDR_LEN])
87 if (priv_ifreq(priv, SIOCGIFHWADDR, &request))
89 memcpy(mac, request.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
94 * Delete MAC flow steering rule.
97 * Pointer to hash RX queue structure.
104 hash_rxq_del_mac_flow(struct hash_rxq *hash_rxq, unsigned int mac_index,
105 unsigned int vlan_index)
108 const uint8_t (*mac)[ETHER_ADDR_LEN] =
109 (const uint8_t (*)[ETHER_ADDR_LEN])
110 hash_rxq->priv->mac[mac_index].addr_bytes;
113 assert(mac_index < RTE_DIM(hash_rxq->mac_flow));
114 assert(vlan_index < RTE_DIM(hash_rxq->mac_flow[mac_index]));
115 if (hash_rxq->mac_flow[mac_index][vlan_index] == NULL)
117 DEBUG("%p: removing MAC address %02x:%02x:%02x:%02x:%02x:%02x index %u"
120 (*mac)[0], (*mac)[1], (*mac)[2], (*mac)[3], (*mac)[4], (*mac)[5],
123 claim_zero(ibv_exp_destroy_flow(hash_rxq->mac_flow
124 [mac_index][vlan_index]));
125 hash_rxq->mac_flow[mac_index][vlan_index] = NULL;
129 * Unregister a MAC address from a hash RX queue.
132 * Pointer to hash RX queue structure.
137 hash_rxq_mac_addr_del(struct hash_rxq *hash_rxq, unsigned int mac_index)
141 assert(mac_index < RTE_DIM(hash_rxq->mac_flow));
142 for (i = 0; (i != RTE_DIM(hash_rxq->mac_flow[mac_index])); ++i)
143 hash_rxq_del_mac_flow(hash_rxq, mac_index, i);
147 * Unregister all MAC addresses from a hash RX queue.
150 * Pointer to hash RX queue structure.
153 hash_rxq_mac_addrs_del(struct hash_rxq *hash_rxq)
157 for (i = 0; (i != RTE_DIM(hash_rxq->mac_flow)); ++i)
158 hash_rxq_mac_addr_del(hash_rxq, i);
162 * Unregister a MAC address.
164 * This is done for each hash RX queue.
167 * Pointer to private structure.
172 priv_mac_addr_del(struct priv *priv, unsigned int mac_index)
176 assert(mac_index < RTE_DIM(priv->mac));
177 if (!BITFIELD_ISSET(priv->mac_configured, mac_index))
179 for (i = 0; (i != priv->hash_rxqs_n); ++i)
180 hash_rxq_mac_addr_del(&(*priv->hash_rxqs)[i], mac_index);
181 BITFIELD_RESET(priv->mac_configured, mac_index);
185 * Unregister all MAC addresses from all hash RX queues.
188 * Pointer to private structure.
191 priv_mac_addrs_disable(struct priv *priv)
195 for (i = 0; (i != priv->hash_rxqs_n); ++i)
196 hash_rxq_mac_addrs_del(&(*priv->hash_rxqs)[i]);
200 * DPDK callback to remove a MAC address.
203 * Pointer to Ethernet device structure.
208 mlx5_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
210 struct priv *priv = dev->data->dev_private;
212 if (mlx5_is_secondary())
216 DEBUG("%p: removing MAC address from index %" PRIu32,
218 if (index >= RTE_DIM(priv->mac))
220 priv_mac_addr_del(priv, index);
226 * Add MAC flow steering rule.
229 * Pointer to hash RX queue structure.
231 * MAC address index to register.
236 * 0 on success, errno value on failure.
239 hash_rxq_add_mac_flow(struct hash_rxq *hash_rxq, unsigned int mac_index,
240 unsigned int vlan_index)
242 struct ibv_exp_flow *flow;
243 struct priv *priv = hash_rxq->priv;
244 const uint8_t (*mac)[ETHER_ADDR_LEN] =
245 (const uint8_t (*)[ETHER_ADDR_LEN])
246 priv->mac[mac_index].addr_bytes;
247 FLOW_ATTR_SPEC_ETH(data, priv_flow_attr(priv, NULL, 0, hash_rxq->type));
248 struct ibv_exp_flow_attr *attr = &data->attr;
249 struct ibv_exp_flow_spec_eth *spec = &data->spec;
250 unsigned int vlan_enabled = !!priv->vlan_filter_n;
251 unsigned int vlan_id = priv->vlan_filter[vlan_index];
253 assert(mac_index < RTE_DIM(hash_rxq->mac_flow));
254 assert(vlan_index < RTE_DIM(hash_rxq->mac_flow[mac_index]));
255 if (hash_rxq->mac_flow[mac_index][vlan_index] != NULL)
258 * No padding must be inserted by the compiler between attr and spec.
259 * This layout is expected by libibverbs.
261 assert(((uint8_t *)attr + sizeof(*attr)) == (uint8_t *)spec);
262 priv_flow_attr(priv, attr, sizeof(data), hash_rxq->type);
263 /* The first specification must be Ethernet. */
264 assert(spec->type == IBV_EXP_FLOW_SPEC_ETH);
265 assert(spec->size == sizeof(*spec));
266 *spec = (struct ibv_exp_flow_spec_eth){
267 .type = IBV_EXP_FLOW_SPEC_ETH,
268 .size = sizeof(*spec),
271 (*mac)[0], (*mac)[1], (*mac)[2],
272 (*mac)[3], (*mac)[4], (*mac)[5]
274 .vlan_tag = (vlan_enabled ? htons(vlan_id) : 0),
277 .dst_mac = "\xff\xff\xff\xff\xff\xff",
278 .vlan_tag = (vlan_enabled ? htons(0xfff) : 0),
281 DEBUG("%p: adding MAC address %02x:%02x:%02x:%02x:%02x:%02x index %u"
282 " VLAN index %u filtering %s, ID %u",
284 (*mac)[0], (*mac)[1], (*mac)[2], (*mac)[3], (*mac)[4], (*mac)[5],
287 (vlan_enabled ? "enabled" : "disabled"),
289 /* Create related flow. */
291 flow = ibv_exp_create_flow(hash_rxq->qp, attr);
293 /* It's not clear whether errno is always set in this case. */
294 ERROR("%p: flow configuration failed, errno=%d: %s",
295 (void *)hash_rxq, errno,
296 (errno ? strerror(errno) : "Unknown error"));
301 hash_rxq->mac_flow[mac_index][vlan_index] = flow;
306 * Register a MAC address in a hash RX queue.
309 * Pointer to hash RX queue structure.
311 * MAC address index to register.
314 * 0 on success, errno value on failure.
317 hash_rxq_mac_addr_add(struct hash_rxq *hash_rxq, unsigned int mac_index)
319 struct priv *priv = hash_rxq->priv;
323 assert(mac_index < RTE_DIM(hash_rxq->mac_flow));
324 assert(RTE_DIM(hash_rxq->mac_flow[mac_index]) ==
325 RTE_DIM(priv->vlan_filter));
326 /* Add a MAC address for each VLAN filter, or at least once. */
328 ret = hash_rxq_add_mac_flow(hash_rxq, mac_index, i);
330 /* Failure, rollback. */
332 hash_rxq_del_mac_flow(hash_rxq, mac_index,
336 } while (++i < priv->vlan_filter_n);
341 * Register all MAC addresses in a hash RX queue.
344 * Pointer to hash RX queue structure.
347 * 0 on success, errno value on failure.
350 hash_rxq_mac_addrs_add(struct hash_rxq *hash_rxq)
352 struct priv *priv = hash_rxq->priv;
356 assert(RTE_DIM(priv->mac) == RTE_DIM(hash_rxq->mac_flow));
357 for (i = 0; (i != RTE_DIM(priv->mac)); ++i) {
358 if (!BITFIELD_ISSET(priv->mac_configured, i))
360 ret = hash_rxq_mac_addr_add(hash_rxq, i);
363 /* Failure, rollback. */
365 hash_rxq_mac_addr_del(hash_rxq, --i);
373 * Register a MAC address.
375 * This is done for each hash RX queue.
378 * Pointer to private structure.
380 * MAC address index to use.
382 * MAC address to register.
385 * 0 on success, errno value on failure.
388 priv_mac_addr_add(struct priv *priv, unsigned int mac_index,
389 const uint8_t (*mac)[ETHER_ADDR_LEN])
394 assert(mac_index < RTE_DIM(priv->mac));
395 /* First, make sure this address isn't already configured. */
396 for (i = 0; (i != RTE_DIM(priv->mac)); ++i) {
397 /* Skip this index, it's going to be reconfigured. */
400 if (!BITFIELD_ISSET(priv->mac_configured, i))
402 if (memcmp(priv->mac[i].addr_bytes, *mac, sizeof(*mac)))
404 /* Address already configured elsewhere, return with error. */
407 if (BITFIELD_ISSET(priv->mac_configured, mac_index))
408 priv_mac_addr_del(priv, mac_index);
409 priv->mac[mac_index] = (struct ether_addr){
411 (*mac)[0], (*mac)[1], (*mac)[2],
412 (*mac)[3], (*mac)[4], (*mac)[5]
415 if (!priv_allow_flow_type(priv, HASH_RXQ_FLOW_TYPE_MAC))
417 for (i = 0; (i != priv->hash_rxqs_n); ++i) {
418 ret = hash_rxq_mac_addr_add(&(*priv->hash_rxqs)[i], mac_index);
421 /* Failure, rollback. */
423 hash_rxq_mac_addr_del(&(*priv->hash_rxqs)[--i],
428 BITFIELD_SET(priv->mac_configured, mac_index);
433 * Register all MAC addresses in all hash RX queues.
436 * Pointer to private structure.
439 * 0 on success, errno value on failure.
442 priv_mac_addrs_enable(struct priv *priv)
447 if (!priv_allow_flow_type(priv, HASH_RXQ_FLOW_TYPE_MAC))
449 for (i = 0; (i != priv->hash_rxqs_n); ++i) {
450 ret = hash_rxq_mac_addrs_add(&(*priv->hash_rxqs)[i]);
453 /* Failure, rollback. */
455 hash_rxq_mac_addrs_del(&(*priv->hash_rxqs)[--i]);
463 * DPDK callback to add a MAC address.
466 * Pointer to Ethernet device structure.
468 * MAC address to register.
472 * VMDq pool index to associate address with (ignored).
475 mlx5_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
476 uint32_t index, uint32_t vmdq)
478 struct priv *priv = dev->data->dev_private;
480 if (mlx5_is_secondary())
485 DEBUG("%p: adding MAC address at index %" PRIu32,
487 if (index >= RTE_DIM(priv->mac))
489 priv_mac_addr_add(priv, index,
490 (const uint8_t (*)[ETHER_ADDR_LEN])
491 mac_addr->addr_bytes);
497 * DPDK callback to set primary MAC address.
500 * Pointer to Ethernet device structure.
502 * MAC address to register.
505 mlx5_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
507 DEBUG("%p: setting primary MAC address", (void *)dev);
508 mlx5_mac_addr_remove(dev, 0);
509 mlx5_mac_addr_add(dev, mac_addr, 0, 0);