#include "mlx5.h"
#include "mlx5_prm.h"
+/* Define minimal priority for control plane flows. */
+#define MLX5_CTRL_FLOW_PRIORITY 4
+
static int
mlx5_flow_create_eth(const struct rte_flow_item *item,
const void *default_mask,
const void *default_mask,
void *data);
-struct rte_flow {
- TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
- struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
- struct mlx5_ind_table_ibv *ind_table; /**< Indirection table. */
+/** Structure for Drop queue. */
+struct mlx5_hrxq_drop {
+ struct ibv_rwq_ind_table *ind_table; /**< Indirection table. */
struct ibv_qp *qp; /**< Verbs queue pair. */
- struct ibv_flow *ibv_flow; /**< Verbs flow. */
struct ibv_wq *wq; /**< Verbs work queue. */
struct ibv_cq *cq; /**< Verbs completion queue. */
+};
+
+/* Flows structures. */
+struct mlx5_flow {
+ uint64_t hash_fields; /**< Fields that participate in the hash. */
+ struct mlx5_hrxq *hrxq; /**< Hash Rx queues. */
+};
+
+/* Drop flows structures. */
+struct mlx5_flow_drop {
+ struct mlx5_hrxq_drop hrxq; /**< Drop hash Rx queue. */
+};
+
+struct rte_flow {
+ TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
uint32_t mark:1; /**< Set if the flow is marked. */
uint32_t drop:1; /**< Drop queue. */
- uint64_t hash_fields; /**< Fields that participate in the hash. */
+ struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
+ struct ibv_flow *ibv_flow; /**< Verbs flow. */
+ uint16_t queues_n; /**< Number of entries in queue[]. */
+ uint16_t (*queues)[]; /**< Queues indexes to use. */
+ union {
+ struct mlx5_flow frxq; /**< Flow with Rx queue. */
+ struct mlx5_flow_drop drxq; /**< Flow with drop Rx queue. */
+ };
};
/** Static initializer for items. */
struct mlx5_flow_action actions; /**< Parsed action result. */
};
-/** Structure for Drop queue. */
-struct rte_flow_drop {
- struct ibv_rwq_ind_table *ind_table; /**< Indirection table. */
- struct ibv_qp *qp; /**< Verbs queue pair. */
- struct ibv_wq *wq; /**< Verbs work queue. */
- struct ibv_cq *cq; /**< Verbs completion queue. */
-};
-
static const struct rte_flow_ops mlx5_flow_ops = {
.validate = mlx5_flow_validate,
.create = mlx5_flow_create,
"groups are not supported");
return -rte_errno;
}
- if (attr->priority) {
+ if (attr->priority && attr->priority != MLX5_CTRL_FLOW_PRIORITY) {
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
NULL,
rte_flow->ibv_attr = flow->ibv_attr;
if (!priv->dev->data->dev_started)
return rte_flow;
- rte_flow->qp = priv->flow_drop_queue->qp;
- rte_flow->ibv_flow = ibv_create_flow(rte_flow->qp,
+ rte_flow->drxq.hrxq.qp = priv->flow_drop_queue->qp;
+ rte_flow->ibv_flow = ibv_create_flow(rte_flow->drxq.hrxq.qp,
rte_flow->ibv_attr);
if (!rte_flow->ibv_flow) {
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
assert(priv->pd);
assert(priv->ctx);
assert(!flow->actions.drop);
- rte_flow = rte_calloc(__func__, 1, sizeof(*rte_flow), 0);
+ rte_flow =
+ rte_calloc(__func__, 1,
+ sizeof(*flow) +
+ flow->actions.queues_n * sizeof(uint16_t),
+ 0);
if (!rte_flow) {
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
NULL, "cannot allocate flow memory");
return NULL;
}
- for (i = 0; i != flow->actions.queues_n; ++i) {
- struct mlx5_rxq_data *q =
- (*priv->rxqs)[flow->actions.queues[i]];
-
- q->mark |= flow->actions.mark;
- }
rte_flow->mark = flow->actions.mark;
rte_flow->ibv_attr = flow->ibv_attr;
- rte_flow->hash_fields = flow->hash_fields;
- rte_flow->ind_table =
- mlx5_priv_ind_table_ibv_get(priv, flow->actions.queues,
- flow->actions.queues_n);
- if (!rte_flow->ind_table) {
- rte_flow->ind_table =
- mlx5_priv_ind_table_ibv_new(priv, flow->actions.queues,
- flow->actions.queues_n);
- if (!rte_flow->ind_table) {
- rte_flow_error_set(error, ENOMEM,
- RTE_FLOW_ERROR_TYPE_HANDLE,
- NULL,
- "cannot allocate indirection table");
- goto error;
- }
+ rte_flow->queues = (uint16_t (*)[])(rte_flow + 1);
+ memcpy(rte_flow->queues, flow->actions.queues,
+ flow->actions.queues_n * sizeof(uint16_t));
+ rte_flow->queues_n = flow->actions.queues_n;
+ rte_flow->frxq.hash_fields = flow->hash_fields;
+ rte_flow->frxq.hrxq = mlx5_priv_hrxq_get(priv, rss_hash_default_key,
+ rss_hash_default_key_len,
+ flow->hash_fields,
+ (*rte_flow->queues),
+ rte_flow->queues_n);
+ if (rte_flow->frxq.hrxq) {
+ rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
+ NULL, "duplicated flow");
+ goto error;
}
- rte_flow->qp = ibv_create_qp_ex(
- priv->ctx,
- &(struct ibv_qp_init_attr_ex){
- .qp_type = IBV_QPT_RAW_PACKET,
- .comp_mask =
- IBV_QP_INIT_ATTR_PD |
- IBV_QP_INIT_ATTR_IND_TABLE |
- IBV_QP_INIT_ATTR_RX_HASH,
- .rx_hash_conf = (struct ibv_rx_hash_conf){
- .rx_hash_function =
- IBV_RX_HASH_FUNC_TOEPLITZ,
- .rx_hash_key_len = rss_hash_default_key_len,
- .rx_hash_key = rss_hash_default_key,
- .rx_hash_fields_mask = rte_flow->hash_fields,
- },
- .rwq_ind_tbl = rte_flow->ind_table->ind_table,
- .pd = priv->pd
- });
- if (!rte_flow->qp) {
+ rte_flow->frxq.hrxq = mlx5_priv_hrxq_new(priv, rss_hash_default_key,
+ rss_hash_default_key_len,
+ flow->hash_fields,
+ (*rte_flow->queues),
+ rte_flow->queues_n);
+ if (!rte_flow->frxq.hrxq) {
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
- NULL, "cannot allocate QP");
+ NULL, "cannot create hash rxq");
goto error;
}
+ for (i = 0; i != flow->actions.queues_n; ++i) {
+ struct mlx5_rxq_data *q =
+ (*priv->rxqs)[flow->actions.queues[i]];
+
+ q->mark |= flow->actions.mark;
+ }
if (!priv->dev->data->dev_started)
return rte_flow;
- rte_flow->ibv_flow = ibv_create_flow(rte_flow->qp,
+ rte_flow->ibv_flow = ibv_create_flow(rte_flow->frxq.hrxq->qp,
rte_flow->ibv_attr);
if (!rte_flow->ibv_flow) {
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
return rte_flow;
error:
assert(rte_flow);
- if (rte_flow->qp)
- ibv_destroy_qp(rte_flow->qp);
- if (rte_flow->ind_table)
- mlx5_priv_ind_table_ibv_release(priv, rte_flow->ind_table);
+ if (rte_flow->frxq.hrxq)
+ mlx5_priv_hrxq_release(priv, rte_flow->frxq.hrxq);
rte_free(rte_flow);
return NULL;
}
*
* @param priv
* Pointer to private structure.
+ * @param list
+ * Pointer to a TAILQ flow list.
* @param[in] attr
* Flow rule attributes.
* @param[in] pattern
*/
static struct rte_flow *
priv_flow_create(struct priv *priv,
+ struct mlx5_flows *list,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
rte_flow = priv_flow_create_action_queue(priv, &flow, error);
if (!rte_flow)
goto exit;
+ if (rte_flow) {
+ TAILQ_INSERT_TAIL(list, rte_flow, next);
+ DEBUG("Flow created %p", (void *)rte_flow);
+ }
return rte_flow;
exit:
rte_free(flow.ibv_attr);
struct rte_flow *flow;
priv_lock(priv);
- flow = priv_flow_create(priv, attr, items, actions, error);
- if (flow) {
- TAILQ_INSERT_TAIL(&priv->flows, flow, next);
- DEBUG("Flow created %p", (void *)flow);
- }
+ flow = priv_flow_create(priv, &priv->flows, attr, items, actions,
+ error);
priv_unlock(priv);
return flow;
}
*
* @param priv
* Pointer to private structure.
+ * @param list
+ * Pointer to a TAILQ flow list.
* @param[in] flow
* Flow to destroy.
*/
static void
priv_flow_destroy(struct priv *priv,
+ struct mlx5_flows *list,
struct rte_flow *flow)
{
unsigned int i;
+ uint16_t *queues;
+ uint16_t queues_n;
- TAILQ_REMOVE(&priv->flows, flow, next);
- if (flow->ibv_flow)
- claim_zero(ibv_destroy_flow(flow->ibv_flow));
- if (flow->drop)
+ if (flow->drop || !flow->mark)
goto free;
- if (flow->qp)
- claim_zero(ibv_destroy_qp(flow->qp));
- for (i = 0; i != flow->ind_table->queues_n; ++i) {
+ queues = flow->frxq.hrxq->ind_table->queues;
+ queues_n = flow->frxq.hrxq->ind_table->queues_n;
+ for (i = 0; i != queues_n; ++i) {
struct rte_flow *tmp;
- struct mlx5_rxq_data *rxq_data =
- (*priv->rxqs)[flow->ind_table->queues[i]];
+ struct mlx5_rxq_data *rxq_data = (*priv->rxqs)[queues[i]];
+ int mark = 0;
/*
* To remove the mark from the queue, the queue must not be
* present in any other marked flow (RSS or not).
*/
- if (flow->mark) {
- int mark = 0;
-
- TAILQ_FOREACH(tmp, &priv->flows, next) {
- unsigned int j;
-
- if (tmp->drop)
- continue;
- if (!tmp->mark)
- continue;
- for (j = 0;
- (j != tmp->ind_table->queues_n) && !mark;
- j++)
- if (tmp->ind_table->queues[j] ==
- flow->ind_table->queues[i])
- mark = 1;
- }
- rxq_data->mark = mark;
+ TAILQ_FOREACH(tmp, list, next) {
+ unsigned int j;
+
+ if (!tmp->mark)
+ continue;
+ for (j = 0;
+ (j != tmp->frxq.hrxq->ind_table->queues_n) &&
+ !mark;
+ j++)
+ if (tmp->frxq.hrxq->ind_table->queues[j] ==
+ queues[i])
+ mark = 1;
}
+ rxq_data->mark = mark;
}
- mlx5_priv_ind_table_ibv_release(priv, flow->ind_table);
free:
+ if (flow->ibv_flow)
+ claim_zero(ibv_destroy_flow(flow->ibv_flow));
+ if (!flow->drop)
+ mlx5_priv_hrxq_release(priv, flow->frxq.hrxq);
+ TAILQ_REMOVE(list, flow, next);
rte_free(flow->ibv_attr);
DEBUG("Flow destroyed %p", (void *)flow);
rte_free(flow);
(void)error;
priv_lock(priv);
- priv_flow_destroy(priv, flow);
+ priv_flow_destroy(priv, &priv->flows, flow);
priv_unlock(priv);
return 0;
}
*
* @param priv
* Pointer to private structure.
+ * @param list
+ * Pointer to a TAILQ flow list.
*/
-static void
-priv_flow_flush(struct priv *priv)
+void
+priv_flow_flush(struct priv *priv, struct mlx5_flows *list)
{
- while (!TAILQ_EMPTY(&priv->flows)) {
+ while (!TAILQ_EMPTY(list)) {
struct rte_flow *flow;
- flow = TAILQ_FIRST(&priv->flows);
- priv_flow_destroy(priv, flow);
+ flow = TAILQ_FIRST(list);
+ priv_flow_destroy(priv, list, flow);
}
}
(void)error;
priv_lock(priv);
- priv_flow_flush(priv);
+ priv_flow_flush(priv, &priv->flows);
priv_unlock(priv);
return 0;
}
static int
priv_flow_create_drop_queue(struct priv *priv)
{
- struct rte_flow_drop *fdq = NULL;
+ struct mlx5_hrxq_drop *fdq = NULL;
assert(priv->pd);
assert(priv->ctx);
static void
priv_flow_delete_drop_queue(struct priv *priv)
{
- struct rte_flow_drop *fdq = priv->flow_drop_queue;
+ struct mlx5_hrxq_drop *fdq = priv->flow_drop_queue;
if (!fdq)
return;
*
* @param priv
* Pointer to private structure.
+ * @param list
+ * Pointer to a TAILQ flow list.
*/
void
-priv_flow_stop(struct priv *priv)
+priv_flow_stop(struct priv *priv, struct mlx5_flows *list)
{
struct rte_flow *flow;
- TAILQ_FOREACH_REVERSE(flow, &priv->flows, mlx5_flows, next) {
+ TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) {
claim_zero(ibv_destroy_flow(flow->ibv_flow));
flow->ibv_flow = NULL;
+ mlx5_priv_hrxq_release(priv, flow->frxq.hrxq);
+ flow->frxq.hrxq = NULL;
if (flow->mark) {
unsigned int n;
- struct mlx5_ind_table_ibv *ind_tbl = flow->ind_table;
+ struct mlx5_ind_table_ibv *ind_tbl =
+ flow->frxq.hrxq->ind_table;
for (n = 0; n < ind_tbl->queues_n; ++n)
(*priv->rxqs)[ind_tbl->queues[n]]->mark = 0;
*
* @param priv
* Pointer to private structure.
+ * @param list
+ * Pointer to a TAILQ flow list.
*
* @return
* 0 on success, a errno value otherwise and rte_errno is set.
*/
int
-priv_flow_start(struct priv *priv)
+priv_flow_start(struct priv *priv, struct mlx5_flows *list)
{
int ret;
struct rte_flow *flow;
ret = priv_flow_create_drop_queue(priv);
if (ret)
return -1;
- TAILQ_FOREACH(flow, &priv->flows, next) {
- struct ibv_qp *qp;
-
- if (flow->drop)
- qp = priv->flow_drop_queue->qp;
- else
- qp = flow->qp;
- flow->ibv_flow = ibv_create_flow(qp, flow->ibv_attr);
+ TAILQ_FOREACH(flow, list, next) {
+ if (flow->frxq.hrxq)
+ goto flow_create;
+ flow->frxq.hrxq =
+ mlx5_priv_hrxq_get(priv, rss_hash_default_key,
+ rss_hash_default_key_len,
+ flow->frxq.hash_fields,
+ (*flow->queues),
+ flow->queues_n);
+ if (flow->frxq.hrxq)
+ goto flow_create;
+ flow->frxq.hrxq =
+ mlx5_priv_hrxq_new(priv, rss_hash_default_key,
+ rss_hash_default_key_len,
+ flow->frxq.hash_fields,
+ (*flow->queues),
+ flow->queues_n);
+ if (!flow->frxq.hrxq) {
+ DEBUG("Flow %p cannot be applied",
+ (void *)flow);
+ rte_errno = EINVAL;
+ return rte_errno;
+ }
+flow_create:
+ flow->ibv_flow = ibv_create_flow(flow->frxq.hrxq->qp,
+ flow->ibv_attr);
if (!flow->ibv_flow) {
DEBUG("Flow %p cannot be applied", (void *)flow);
rte_errno = EINVAL;
if (flow->mark) {
unsigned int n;
- for (n = 0; n < flow->ind_table->queues_n; ++n) {
- uint16_t idx = flow->ind_table->queues[n];
+ for (n = 0;
+ n < flow->frxq.hrxq->ind_table->queues_n;
+ ++n) {
+ uint16_t idx =
+ flow->frxq.hrxq->ind_table->queues[n];
(*priv->rxqs)[idx]->mark = 1;
}
}
}
return ret;
}
+
+/**
+ * Enable/disable a control flow configured from the control plane.
+ *
+ * @param dev
+ * Pointer to Ethernet device.
+ * @param spec
+ * An Ethernet flow spec to apply.
+ * @param mask
+ * An Ethernet flow mask to apply.
+ * @param enable
+ * Enable/disable the flow.
+ *
+ * @return
+ * 0 on success.
+ */
+int
+mlx5_ctrl_flow(struct rte_eth_dev *dev,
+ struct rte_flow_item_eth *spec,
+ struct rte_flow_item_eth *mask,
+ unsigned int enable)
+{
+ struct priv *priv = dev->data->dev_private;
+ const struct rte_flow_attr attr = {
+ .ingress = 1,
+ .priority = MLX5_CTRL_FLOW_PRIORITY,
+ };
+ struct rte_flow_item items[] = {
+ {
+ .type = RTE_FLOW_ITEM_TYPE_ETH,
+ .spec = spec,
+ .last = NULL,
+ .mask = mask,
+ },
+ {
+ .type = RTE_FLOW_ITEM_TYPE_END,
+ },
+ };
+ struct rte_flow_action actions[] = {
+ {
+ .type = RTE_FLOW_ACTION_TYPE_QUEUE,
+ .conf = &(struct rte_flow_action_queue){
+ .index = 0,
+ },
+ },
+ {
+ .type = RTE_FLOW_ACTION_TYPE_END,
+ },
+ };
+ struct rte_flow *flow;
+ struct rte_flow_error error;
+
+ if (enable) {
+ flow = priv_flow_create(priv, &priv->ctrl_flows, &attr, items,
+ actions, &error);
+ if (!flow)
+ return 1;
+ } else {
+ struct spec {
+ struct ibv_flow_attr ibv_attr;
+ struct ibv_flow_spec_eth eth;
+ } spec;
+ struct mlx5_flow_parse parser = {
+ .ibv_attr = &spec.ibv_attr,
+ .offset = sizeof(struct ibv_flow_attr),
+ };
+ struct ibv_flow_spec_eth *eth;
+ const unsigned int attr_size = sizeof(struct ibv_flow_attr);
+
+ claim_zero(mlx5_flow_create_eth(&items[0], NULL, &parser));
+ TAILQ_FOREACH(flow, &priv->ctrl_flows, next) {
+ eth = (void *)((uintptr_t)flow->ibv_attr + attr_size);
+ assert(eth->type == IBV_FLOW_SPEC_ETH);
+ if (!memcmp(eth, &spec.eth, sizeof(*eth)))
+ break;
+ }
+ if (flow) {
+ claim_zero(ibv_destroy_flow(flow->ibv_flow));
+ mlx5_priv_hrxq_release(priv, flow->frxq.hrxq);
+ rte_free(flow->ibv_attr);
+ DEBUG("Control flow destroyed %p", (void *)flow);
+ TAILQ_REMOVE(&priv->ctrl_flows, flow, next);
+ rte_free(flow);
+ }
+ }
+ return 0;
+}
git.droids-corp.org / dpdk.git / blobdiff