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authorNĂ©lio Laranjeiro <nelio.laranjeiro@6wind.com>2018-02-27 10:36:44 +0100
committerYuanhan Liu <yliu@fridaylinux.org>2018-02-27 17:47:10 +0800
commit9dd8bea3e4baf6e078c6aa91b58ea02be60b872a (patch)
tree6295cdbea9754600a75e7a219894825a630a96e3
parent829da4bb879768d3e2f467c0e8d2cf60830a23e6 (diff)
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net/mlx5: remove parser/flow drop queue
[ backported from upstream commit 992300f402b60717ffc5d6cf3a8e71c4e485d14c ] This drop queue can be handled efficiently by using the drop flag in the context. Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com> Acked-by: Yongseok Koh <yskoh@mellanox.com>
-rw-r--r--drivers/net/mlx5/mlx5_flow.c178
1 files changed, 56 insertions, 122 deletions
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index c18c77d..bc2bba2 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -251,11 +251,8 @@ struct rte_flow {
uint8_t rss_key[40]; /**< copy of the RSS key. */
struct ibv_counter_set *cs; /**< Holds the counters for the rule. */
struct mlx5_flow_counter_stats counter_stats;/**<The counter stats. */
- union {
- struct mlx5_flow frxq[RTE_DIM(hash_rxq_init)];
- /**< Flow with Rx queue. */
- struct mlx5_flow_drop drxq; /**< Flow with drop Rx queue. */
- };
+ struct mlx5_flow frxq[RTE_DIM(hash_rxq_init)];
+ /**< Flow with Rx queue. */
};
/** Static initializer for items. */
@@ -445,20 +442,12 @@ struct mlx5_flow_parse {
uint8_t rss_key[40]; /**< copy of the RSS key. */
enum hash_rxq_type layer; /**< Last pattern layer detected. */
struct ibv_counter_set *cs; /**< Holds the counter set for the rule */
- union {
- struct {
- struct ibv_flow_attr *ibv_attr;
- /**< Pointer to Verbs attributes. */
- unsigned int offset;
- /**< Current position or total size of the attribute. */
- } queue[RTE_DIM(hash_rxq_init)];
- struct {
- struct ibv_flow_attr *ibv_attr;
- /**< Pointer to Verbs attributes. */
- unsigned int offset;
- /**< Current position or total size of the attribute. */
- } drop_q;
- };
+ struct {
+ struct ibv_flow_attr *ibv_attr;
+ /**< Pointer to Verbs attributes. */
+ unsigned int offset;
+ /**< Current position or total size of the attribute. */
+ } queue[RTE_DIM(hash_rxq_init)];
};
static const struct rte_flow_ops mlx5_flow_ops = {
@@ -839,12 +828,8 @@ priv_flow_convert_items_validate(struct priv *priv,
(void)priv;
/* Initialise the offsets to start after verbs attribute. */
- if (parser->drop) {
- parser->drop_q.offset = sizeof(struct ibv_flow_attr);
- } else {
- for (i = 0; i != hash_rxq_init_n; ++i)
- parser->queue[i].offset = sizeof(struct ibv_flow_attr);
- }
+ for (i = 0; i != hash_rxq_init_n; ++i)
+ parser->queue[i].offset = sizeof(struct ibv_flow_attr);
for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) {
const struct mlx5_flow_items *token = NULL;
unsigned int n;
@@ -880,9 +865,7 @@ priv_flow_convert_items_validate(struct priv *priv,
}
parser->inner = IBV_FLOW_SPEC_INNER;
}
- if (parser->drop) {
- parser->drop_q.offset += cur_item->dst_sz;
- } else if (parser->queues_n == 1) {
+ if (parser->drop || parser->queues_n == 1) {
parser->queue[HASH_RXQ_ETH].offset += cur_item->dst_sz;
} else {
for (n = 0; n != hash_rxq_init_n; ++n)
@@ -901,12 +884,8 @@ priv_flow_convert_items_validate(struct priv *priv,
if (parser->count) {
unsigned int size = sizeof(struct ibv_flow_spec_counter_action);
- if (parser->drop) {
- parser->drop_q.offset += size;
- } else {
- for (i = 0; i != hash_rxq_init_n; ++i)
- parser->queue[i].offset += size;
- }
+ for (i = 0; i != hash_rxq_init_n; ++i)
+ parser->queue[i].offset += size;
}
return 0;
exit_item_not_supported:
@@ -1118,15 +1097,7 @@ priv_flow_convert(struct priv *priv,
* Second step.
* Allocate the memory space to store verbs specifications.
*/
- if (parser->drop) {
- parser->drop_q.ibv_attr =
- priv_flow_convert_allocate(priv, attr->priority,
- parser->drop_q.offset,
- error);
- if (!parser->drop_q.ibv_attr)
- return ENOMEM;
- parser->drop_q.offset = sizeof(struct ibv_flow_attr);
- } else if (parser->queues_n == 1) {
+ if (parser->drop || parser->queues_n == 1) {
unsigned int priority =
attr->priority +
hash_rxq_init[HASH_RXQ_ETH].flow_priority;
@@ -1188,15 +1159,7 @@ priv_flow_convert(struct priv *priv,
* Last step. Complete missing specification to reach the RSS
* configuration.
*/
- if (parser->drop) {
- /*
- * Drop queue priority needs to be adjusted to
- * their most specific layer priority.
- */
- parser->drop_q.ibv_attr->priority =
- attr->priority +
- hash_rxq_init[parser->layer].flow_priority;
- } else if (parser->queues_n > 1) {
+ if (parser->queues_n > 1) {
priv_flow_convert_finalise(priv, parser);
} else {
/*
@@ -1211,10 +1174,6 @@ priv_flow_convert(struct priv *priv,
exit_free:
/* Only verification is expected, all resources should be released. */
if (!parser->create) {
- if (parser->drop) {
- rte_free(parser->drop_q.ibv_attr);
- parser->drop_q.ibv_attr = NULL;
- }
for (i = 0; i != hash_rxq_init_n; ++i) {
if (parser->queue[i].ibv_attr) {
rte_free(parser->queue[i].ibv_attr);
@@ -1256,14 +1215,6 @@ mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src,
unsigned int i;
void *dst;
- if (parser->drop) {
- dst = (void *)((uintptr_t)parser->drop_q.ibv_attr +
- parser->drop_q.offset);
- memcpy(dst, src, size);
- ++parser->drop_q.ibv_attr->num_of_specs;
- parser->drop_q.offset += size;
- return;
- }
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!parser->queue[i].ibv_attr)
continue;
@@ -1356,14 +1307,6 @@ mlx5_flow_create_vlan(const struct rte_flow_item *item,
if (!mask)
mask = default_mask;
- if (parser->drop) {
- eth = (void *)((uintptr_t)parser->drop_q.ibv_attr +
- parser->drop_q.offset - eth_size);
- eth->val.vlan_tag = spec->tci;
- eth->mask.vlan_tag = mask->tci;
- eth->val.vlan_tag &= eth->mask.vlan_tag;
- return 0;
- }
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!parser->queue[i].ibv_attr)
continue;
@@ -1717,23 +1660,25 @@ priv_flow_create_action_queue_drop(struct priv *priv,
assert(priv->pd);
assert(priv->ctx);
flow->drop = 1;
- drop = (void *)((uintptr_t)parser->drop_q.ibv_attr +
- parser->drop_q.offset);
+ drop = (void *)((uintptr_t)parser->queue[HASH_RXQ_ETH].ibv_attr +
+ parser->queue[HASH_RXQ_ETH].offset);
*drop = (struct ibv_flow_spec_action_drop){
.type = IBV_FLOW_SPEC_ACTION_DROP,
.size = size,
};
- ++parser->drop_q.ibv_attr->num_of_specs;
- parser->drop_q.offset += size;
- flow->drxq.ibv_attr = parser->drop_q.ibv_attr;
+ ++parser->queue[HASH_RXQ_ETH].ibv_attr->num_of_specs;
+ parser->queue[HASH_RXQ_ETH].offset += size;
+ flow->frxq[HASH_RXQ_ETH].ibv_attr =
+ parser->queue[HASH_RXQ_ETH].ibv_attr;
if (parser->count)
flow->cs = parser->cs;
if (!priv->dev->data->dev_started)
return 0;
- parser->drop_q.ibv_attr = NULL;
- flow->drxq.ibv_flow = ibv_create_flow(priv->flow_drop_queue->qp,
- flow->drxq.ibv_attr);
- if (!flow->drxq.ibv_flow) {
+ parser->queue[HASH_RXQ_ETH].ibv_attr = NULL;
+ flow->frxq[HASH_RXQ_ETH].ibv_flow =
+ ibv_create_flow(priv->flow_drop_queue->qp,
+ flow->frxq[HASH_RXQ_ETH].ibv_attr);
+ if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) {
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
NULL, "flow rule creation failure");
err = ENOMEM;
@@ -1742,13 +1687,13 @@ priv_flow_create_action_queue_drop(struct priv *priv,
return 0;
error:
assert(flow);
- if (flow->drxq.ibv_flow) {
- claim_zero(ibv_destroy_flow(flow->drxq.ibv_flow));
- flow->drxq.ibv_flow = NULL;
+ if (flow->frxq[HASH_RXQ_ETH].ibv_flow) {
+ claim_zero(ibv_destroy_flow(flow->frxq[HASH_RXQ_ETH].ibv_flow));
+ flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL;
}
- if (flow->drxq.ibv_attr) {
- rte_free(flow->drxq.ibv_attr);
- flow->drxq.ibv_attr = NULL;
+ if (flow->frxq[HASH_RXQ_ETH].ibv_attr) {
+ rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr);
+ flow->frxq[HASH_RXQ_ETH].ibv_attr = NULL;
}
if (flow->cs) {
claim_zero(ibv_destroy_counter_set(flow->cs));
@@ -1963,13 +1908,9 @@ priv_flow_create(struct priv *priv,
DEBUG("Flow created %p", (void *)flow);
return flow;
exit:
- if (parser.drop) {
- rte_free(parser.drop_q.ibv_attr);
- } else {
- for (i = 0; i != hash_rxq_init_n; ++i) {
- if (parser.queue[i].ibv_attr)
- rte_free(parser.queue[i].ibv_attr);
- }
+ for (i = 0; i != hash_rxq_init_n; ++i) {
+ if (parser.queue[i].ibv_attr)
+ rte_free(parser.queue[i].ibv_attr);
}
rte_free(flow);
return NULL;
@@ -2071,9 +2012,10 @@ priv_flow_destroy(struct priv *priv,
}
free:
if (flow->drop) {
- if (flow->drxq.ibv_flow)
- claim_zero(ibv_destroy_flow(flow->drxq.ibv_flow));
- rte_free(flow->drxq.ibv_attr);
+ if (flow->frxq[HASH_RXQ_ETH].ibv_flow)
+ claim_zero(ibv_destroy_flow
+ (flow->frxq[HASH_RXQ_ETH].ibv_flow));
+ rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr);
} else {
for (i = 0; i != hash_rxq_init_n; ++i) {
struct mlx5_flow *frxq = &flow->frxq[i];
@@ -2243,10 +2185,11 @@ priv_flow_stop(struct priv *priv, struct mlx5_flows *list)
struct mlx5_ind_table_ibv *ind_tbl = NULL;
if (flow->drop) {
- if (!flow->drxq.ibv_flow)
+ if (!flow->frxq[HASH_RXQ_ETH].ibv_flow)
continue;
- claim_zero(ibv_destroy_flow(flow->drxq.ibv_flow));
- flow->drxq.ibv_flow = NULL;
+ claim_zero(ibv_destroy_flow
+ (flow->frxq[HASH_RXQ_ETH].ibv_flow));
+ flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL;
DEBUG("Flow %p removed", (void *)flow);
/* Next flow. */
continue;
@@ -2303,10 +2246,11 @@ priv_flow_start(struct priv *priv, struct mlx5_flows *list)
unsigned int i;
if (flow->drop) {
- flow->drxq.ibv_flow =
- ibv_create_flow(priv->flow_drop_queue->qp,
- flow->drxq.ibv_attr);
- if (!flow->drxq.ibv_flow) {
+ flow->frxq[HASH_RXQ_ETH].ibv_flow =
+ ibv_create_flow
+ (priv->flow_drop_queue->qp,
+ flow->frxq[HASH_RXQ_ETH].ibv_attr);
+ if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) {
DEBUG("Flow %p cannot be applied",
(void *)flow);
rte_errno = EINVAL;
@@ -2901,13 +2845,13 @@ priv_fdir_filter_delete(struct priv *priv,
if (parser.drop) {
struct ibv_flow_spec_action_drop *drop;
- drop = (void *)((uintptr_t)parser.drop_q.ibv_attr +
- parser.drop_q.offset);
+ drop = (void *)((uintptr_t)parser.queue[HASH_RXQ_ETH].ibv_attr +
+ parser.queue[HASH_RXQ_ETH].offset);
*drop = (struct ibv_flow_spec_action_drop){
.type = IBV_FLOW_SPEC_ACTION_DROP,
.size = sizeof(struct ibv_flow_spec_action_drop),
};
- parser.drop_q.ibv_attr->num_of_specs++;
+ parser.queue[HASH_RXQ_ETH].ibv_attr->num_of_specs++;
}
TAILQ_FOREACH(flow, &priv->flows, next) {
struct ibv_flow_attr *attr;
@@ -2918,14 +2862,8 @@ priv_fdir_filter_delete(struct priv *priv,
void *flow_spec;
unsigned int specs_n;
- if (parser.drop)
- attr = parser.drop_q.ibv_attr;
- else
- attr = parser.queue[HASH_RXQ_ETH].ibv_attr;
- if (flow->drop)
- flow_attr = flow->drxq.ibv_attr;
- else
- flow_attr = flow->frxq[HASH_RXQ_ETH].ibv_attr;
+ attr = parser.queue[HASH_RXQ_ETH].ibv_attr;
+ flow_attr = flow->frxq[HASH_RXQ_ETH].ibv_attr;
/* Compare first the attributes. */
if (memcmp(attr, flow_attr, sizeof(struct ibv_flow_attr)))
continue;
@@ -2955,13 +2893,9 @@ wrong_flow:
if (flow)
priv_flow_destroy(priv, &priv->flows, flow);
exit:
- if (parser.drop) {
- rte_free(parser.drop_q.ibv_attr);
- } else {
- for (i = 0; i != hash_rxq_init_n; ++i) {
- if (parser.queue[i].ibv_attr)
- rte_free(parser.queue[i].ibv_attr);
- }
+ for (i = 0; i != hash_rxq_init_n; ++i) {
+ if (parser.queue[i].ibv_attr)
+ rte_free(parser.queue[i].ibv_attr);
}
return -ret;
}