#include "mlx5_rxtx.h"
#include "mlx5_utils.h"
-static void hash_rxq_promiscuous_disable(struct hash_rxq *);
-static void hash_rxq_allmulticast_disable(struct hash_rxq *);
+/* Initialization data for special flows. */
+static const struct special_flow_init special_flow_init[] = {
+ [HASH_RXQ_FLOW_TYPE_PROMISC] = {
+ .dst_mac_val = "\x00\x00\x00\x00\x00\x00",
+ .dst_mac_mask = "\x00\x00\x00\x00\x00\x00",
+ .hash_types =
+ 1 << HASH_RXQ_TCPV4 |
+ 1 << HASH_RXQ_UDPV4 |
+ 1 << HASH_RXQ_IPV4 |
+#ifdef HAVE_FLOW_SPEC_IPV6
+ 1 << HASH_RXQ_TCPV6 |
+ 1 << HASH_RXQ_UDPV6 |
+ 1 << HASH_RXQ_IPV6 |
+#endif /* HAVE_FLOW_SPEC_IPV6 */
+ 1 << HASH_RXQ_ETH |
+ 0,
+ },
+ [HASH_RXQ_FLOW_TYPE_ALLMULTI] = {
+ .dst_mac_val = "\x01\x00\x00\x00\x00\x00",
+ .dst_mac_mask = "\x01\x00\x00\x00\x00\x00",
+ .hash_types =
+ 1 << HASH_RXQ_UDPV4 |
+ 1 << HASH_RXQ_IPV4 |
+#ifdef HAVE_FLOW_SPEC_IPV6
+ 1 << HASH_RXQ_UDPV6 |
+ 1 << HASH_RXQ_IPV6 |
+#endif /* HAVE_FLOW_SPEC_IPV6 */
+ 1 << HASH_RXQ_ETH |
+ 0,
+ },
+};
/**
- * Enable promiscuous mode in a hash RX queue.
+ * Enable a special flow in a hash RX queue.
*
* @param hash_rxq
* Pointer to hash RX queue structure.
+ * @param flow_type
+ * Special flow type.
*
* @return
* 0 on success, errno value on failure.
*/
static int
-hash_rxq_promiscuous_enable(struct hash_rxq *hash_rxq)
+hash_rxq_special_flow_enable(struct hash_rxq *hash_rxq,
+ enum hash_rxq_flow_type flow_type)
{
- struct ibv_flow *flow;
- struct ibv_flow_attr attr = {
- .type = IBV_FLOW_ATTR_ALL_DEFAULT,
- .num_of_specs = 0,
- .port = hash_rxq->priv->port,
- .flags = 0
- };
+ struct ibv_exp_flow *flow;
+ FLOW_ATTR_SPEC_ETH(data, hash_rxq_flow_attr(hash_rxq, NULL, 0));
+ struct ibv_exp_flow_attr *attr = &data->attr;
+ struct ibv_exp_flow_spec_eth *spec = &data->spec;
+ const uint8_t *mac;
+ const uint8_t *mask;
- if (hash_rxq->priv->vf)
+ /* Check if flow is relevant for this hash_rxq. */
+ if (!(special_flow_init[flow_type].hash_types & (1 << hash_rxq->type)))
return 0;
- if (hash_rxq->promisc_flow != NULL)
+ /* Check if flow already exists. */
+ if (hash_rxq->special_flow[flow_type] != NULL)
return 0;
- DEBUG("%p: enabling promiscuous mode", (void *)hash_rxq);
+
+ /*
+ * No padding must be inserted by the compiler between attr and spec.
+ * This layout is expected by libibverbs.
+ */
+ assert(((uint8_t *)attr + sizeof(*attr)) == (uint8_t *)spec);
+ hash_rxq_flow_attr(hash_rxq, attr, sizeof(data));
+ /* The first specification must be Ethernet. */
+ assert(spec->type == IBV_EXP_FLOW_SPEC_ETH);
+ assert(spec->size == sizeof(*spec));
+
+ mac = special_flow_init[flow_type].dst_mac_val;
+ mask = special_flow_init[flow_type].dst_mac_mask;
+ *spec = (struct ibv_exp_flow_spec_eth){
+ .type = IBV_EXP_FLOW_SPEC_ETH,
+ .size = sizeof(*spec),
+ .val = {
+ .dst_mac = {
+ mac[0], mac[1], mac[2],
+ mac[3], mac[4], mac[5],
+ },
+ },
+ .mask = {
+ .dst_mac = {
+ mask[0], mask[1], mask[2],
+ mask[3], mask[4], mask[5],
+ },
+ },
+ };
+
errno = 0;
- flow = ibv_create_flow(hash_rxq->qp, &attr);
+ flow = ibv_exp_create_flow(hash_rxq->qp, attr);
if (flow == NULL) {
/* It's not clear whether errno is always set in this case. */
ERROR("%p: flow configuration failed, errno=%d: %s",
return errno;
return EINVAL;
}
- hash_rxq->promisc_flow = flow;
- DEBUG("%p: promiscuous mode enabled", (void *)hash_rxq);
+ hash_rxq->special_flow[flow_type] = flow;
+ DEBUG("%p: enabling special flow %s (%d)",
+ (void *)hash_rxq, hash_rxq_flow_type_str(flow_type), flow_type);
return 0;
}
/**
- * Enable promiscuous mode in all hash RX queues.
+ * Disable a special flow in a hash RX queue.
+ *
+ * @param hash_rxq
+ * Pointer to hash RX queue structure.
+ * @param flow_type
+ * Special flow type.
+ */
+static void
+hash_rxq_special_flow_disable(struct hash_rxq *hash_rxq,
+ enum hash_rxq_flow_type flow_type)
+{
+ if (hash_rxq->special_flow[flow_type] == NULL)
+ return;
+ DEBUG("%p: disabling special flow %s (%d)",
+ (void *)hash_rxq, hash_rxq_flow_type_str(flow_type), flow_type);
+ claim_zero(ibv_exp_destroy_flow(hash_rxq->special_flow[flow_type]));
+ hash_rxq->special_flow[flow_type] = NULL;
+ DEBUG("%p: special flow %s (%d) disabled",
+ (void *)hash_rxq, hash_rxq_flow_type_str(flow_type), flow_type);
+}
+
+/**
+ * Enable a special flow in all hash RX queues.
*
* @param priv
* Private structure.
+ * @param flow_type
+ * Special flow type.
*
* @return
* 0 on success, errno value on failure.
*/
int
-priv_promiscuous_enable(struct priv *priv)
+priv_special_flow_enable(struct priv *priv, enum hash_rxq_flow_type flow_type)
{
unsigned int i;
+ if (!priv_allow_flow_type(priv, flow_type))
+ return 0;
for (i = 0; (i != priv->hash_rxqs_n); ++i) {
struct hash_rxq *hash_rxq = &(*priv->hash_rxqs)[i];
int ret;
- ret = hash_rxq_promiscuous_enable(hash_rxq);
+ ret = hash_rxq_special_flow_enable(hash_rxq, flow_type);
if (!ret)
continue;
/* Failure, rollback. */
while (i != 0) {
hash_rxq = &(*priv->hash_rxqs)[--i];
- hash_rxq_promiscuous_disable(hash_rxq);
+ hash_rxq_special_flow_disable(hash_rxq, flow_type);
}
return ret;
}
return 0;
}
+/**
+ * Disable a special flow in all hash RX queues.
+ *
+ * @param priv
+ * Private structure.
+ * @param flow_type
+ * Special flow type.
+ */
+void
+priv_special_flow_disable(struct priv *priv, enum hash_rxq_flow_type flow_type)
+{
+ unsigned int i;
+
+ for (i = 0; (i != priv->hash_rxqs_n); ++i) {
+ struct hash_rxq *hash_rxq = &(*priv->hash_rxqs)[i];
+
+ hash_rxq_special_flow_disable(hash_rxq, flow_type);
+ }
+}
+
/**
* DPDK callback to enable promiscuous mode.
*
priv_lock(priv);
priv->promisc_req = 1;
- ret = priv_promiscuous_enable(priv);
+ ret = priv_rehash_flows(priv);
if (ret)
- ERROR("cannot enable promiscuous mode: %s", strerror(ret));
+ ERROR("error while enabling promiscuous mode: %s",
+ strerror(ret));
priv_unlock(priv);
}
-/**
- * Disable promiscuous mode in a hash RX queue.
- *
- * @param hash_rxq
- * Pointer to hash RX queue structure.
- */
-static void
-hash_rxq_promiscuous_disable(struct hash_rxq *hash_rxq)
-{
- if (hash_rxq->priv->vf)
- return;
- if (hash_rxq->promisc_flow == NULL)
- return;
- DEBUG("%p: disabling promiscuous mode", (void *)hash_rxq);
- claim_zero(ibv_destroy_flow(hash_rxq->promisc_flow));
- hash_rxq->promisc_flow = NULL;
- DEBUG("%p: promiscuous mode disabled", (void *)hash_rxq);
-}
-
-/**
- * Disable promiscuous mode in all hash RX queues.
- *
- * @param priv
- * Private structure.
- */
-void
-priv_promiscuous_disable(struct priv *priv)
-{
- unsigned int i;
-
- for (i = 0; (i != priv->hash_rxqs_n); ++i)
- hash_rxq_promiscuous_disable(&(*priv->hash_rxqs)[i]);
-}
-
/**
* DPDK callback to disable promiscuous mode.
*
mlx5_promiscuous_disable(struct rte_eth_dev *dev)
{
struct priv *priv = dev->data->dev_private;
+ int ret;
priv_lock(priv);
priv->promisc_req = 0;
- priv_promiscuous_disable(priv);
+ ret = priv_rehash_flows(priv);
+ if (ret)
+ ERROR("error while disabling promiscuous mode: %s",
+ strerror(ret));
priv_unlock(priv);
}
-/**
- * Enable allmulti mode in a hash RX queue.
- *
- * @param hash_rxq
- * Pointer to hash RX queue structure.
- *
- * @return
- * 0 on success, errno value on failure.
- */
-static int
-hash_rxq_allmulticast_enable(struct hash_rxq *hash_rxq)
-{
- struct ibv_flow *flow;
- struct ibv_flow_attr attr = {
- .type = IBV_FLOW_ATTR_MC_DEFAULT,
- .num_of_specs = 0,
- .port = hash_rxq->priv->port,
- .flags = 0
- };
-
- if (hash_rxq->allmulti_flow != NULL)
- return 0;
- DEBUG("%p: enabling allmulticast mode", (void *)hash_rxq);
- errno = 0;
- flow = ibv_create_flow(hash_rxq->qp, &attr);
- if (flow == NULL) {
- /* It's not clear whether errno is always set in this case. */
- ERROR("%p: flow configuration failed, errno=%d: %s",
- (void *)hash_rxq, errno,
- (errno ? strerror(errno) : "Unknown error"));
- if (errno)
- return errno;
- return EINVAL;
- }
- hash_rxq->allmulti_flow = flow;
- DEBUG("%p: allmulticast mode enabled", (void *)hash_rxq);
- return 0;
-}
-
-/**
- * Enable allmulti mode in most hash RX queues.
- * TCP queues are exempted to save resources.
- *
- * @param priv
- * Private structure.
- *
- * @return
- * 0 on success, errno value on failure.
- */
-int
-priv_allmulticast_enable(struct priv *priv)
-{
- unsigned int i;
-
- for (i = 0; (i != priv->hash_rxqs_n); ++i) {
- struct hash_rxq *hash_rxq = &(*priv->hash_rxqs)[i];
- int ret;
-
- /* allmulticast not relevant for TCP. */
- if (hash_rxq->type == HASH_RXQ_TCPV4)
- continue;
- ret = hash_rxq_allmulticast_enable(hash_rxq);
- if (!ret)
- continue;
- /* Failure, rollback. */
- while (i != 0) {
- hash_rxq = &(*priv->hash_rxqs)[--i];
- hash_rxq_allmulticast_disable(hash_rxq);
- }
- return ret;
- }
- return 0;
-}
-
/**
* DPDK callback to enable allmulti mode.
*
priv_lock(priv);
priv->allmulti_req = 1;
- ret = priv_allmulticast_enable(priv);
+ ret = priv_rehash_flows(priv);
if (ret)
- ERROR("cannot enable allmulticast mode: %s", strerror(ret));
+ ERROR("error while enabling allmulticast mode: %s",
+ strerror(ret));
priv_unlock(priv);
}
-/**
- * Disable allmulti mode in a hash RX queue.
- *
- * @param hash_rxq
- * Pointer to hash RX queue structure.
- */
-static void
-hash_rxq_allmulticast_disable(struct hash_rxq *hash_rxq)
-{
- if (hash_rxq->allmulti_flow == NULL)
- return;
- DEBUG("%p: disabling allmulticast mode", (void *)hash_rxq);
- claim_zero(ibv_destroy_flow(hash_rxq->allmulti_flow));
- hash_rxq->allmulti_flow = NULL;
- DEBUG("%p: allmulticast mode disabled", (void *)hash_rxq);
-}
-
-/**
- * Disable allmulti mode in all hash RX queues.
- *
- * @param priv
- * Private structure.
- */
-void
-priv_allmulticast_disable(struct priv *priv)
-{
- unsigned int i;
-
- for (i = 0; (i != priv->hash_rxqs_n); ++i)
- hash_rxq_allmulticast_disable(&(*priv->hash_rxqs)[i]);
-}
-
/**
* DPDK callback to disable allmulti mode.
*
mlx5_allmulticast_disable(struct rte_eth_dev *dev)
{
struct priv *priv = dev->data->dev_private;
+ int ret;
priv_lock(priv);
priv->allmulti_req = 0;
- priv_allmulticast_disable(priv);
+ ret = priv_rehash_flows(priv);
+ if (ret)
+ ERROR("error while disabling allmulticast mode: %s",
+ strerror(ret));
priv_unlock(priv);
}
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