From: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
To: dev@dpdk.org
Cc: Yongseok Koh <yskoh@mellanox.com>,
Adrien Mazarguil <adrien.mazarguil@6wind.com>
Subject: [dpdk-dev] [PATCH v2] net/mlx5: remove parser/flow drop queue
Date: Thu, 23 Nov 2017 10:30:21 +0100 [thread overview]
Message-ID: <9850813dffb9b10fa57088e481a11099753009e4.1511429380.git.nelio.laranjeiro@6wind.com> (raw)
In-Reply-To: <b44126980cbe727b3827d286a6085cf5756ff411.1510904955.git.nelio.laranjeiro@6wind.com>
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>
---
Changes in v2:
* remove also the drop queue in rte_flow structure to avoid a segfault.
---
drivers/net/mlx5/mlx5_flow.c | 178 ++++++++++++++-----------------------------
1 file changed, 56 insertions(+), 122 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index f32dfdd3f..1eda83671 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -250,11 +250,8 @@ 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. */
@@ -444,20 +441,12 @@ 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 = {
@@ -827,12 +816,8 @@ 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;
@@ -868,9 +853,7 @@ 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)
@@ -885,12 +868,8 @@ 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:
@@ -1102,15 +1081,7 @@ 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;
@@ -1172,15 +1143,7 @@ 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 {
/*
@@ -1195,10 +1158,6 @@ 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);
@@ -1240,14 +1199,6 @@ 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;
@@ -1340,14 +1291,6 @@ 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;
@@ -1701,23 +1644,25 @@ 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;
@@ -1726,13 +1671,13 @@ 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));
@@ -1947,13 +1892,9 @@ 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;
@@ -2055,9 +1996,10 @@ 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];
@@ -2226,10 +2168,11 @@ priv_flow_stop(struct priv *priv, struct mlx5_flows *list)
unsigned int i;
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;
/* Next flow. */
continue;
}
@@ -2277,10 +2220,11 @@ 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;
@@ -2875,13 +2819,13 @@ 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;
@@ -2892,14 +2836,8 @@ 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;
@@ -2929,13 +2867,9 @@ priv_fdir_filter_delete(struct priv *priv,
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;
}
--
2.11.0
next prev parent reply other threads:[~2017-11-23 9:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-17 7:49 [dpdk-dev] [PATCH] " Nelio Laranjeiro
2017-11-23 9:30 ` Nelio Laranjeiro [this message]
2017-11-27 7:19 ` [dpdk-dev] [PATCH v2] " Shahaf Shuler
2017-11-27 18:11 ` Ferruh Yigit
2017-11-28 10:59 ` Shahaf Shuler
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