/* Actions that modify the fate of matching traffic. */
#define MLX5_FLOW_FATE_DROP (1u << 0)
#define MLX5_FLOW_FATE_QUEUE (1u << 1)
+#define MLX5_FLOW_FATE_RSS (1u << 2)
/* Modify a packet. */
#define MLX5_FLOW_MOD_FLAG (1u << 0)
#define MLX5_IP_PROTOCOL_TCP 6
#define MLX5_IP_PROTOCOL_UDP 17
+/* Priority reserved for default flows. */
+#define MLX5_FLOW_PRIO_RSVD ((uint32_t)-1)
+
+enum mlx5_expansion {
+ MLX5_EXPANSION_ROOT,
+ MLX5_EXPANSION_ETH,
+ MLX5_EXPANSION_IPV4,
+ MLX5_EXPANSION_IPV4_UDP,
+ MLX5_EXPANSION_IPV4_TCP,
+ MLX5_EXPANSION_IPV6,
+ MLX5_EXPANSION_IPV6_UDP,
+ MLX5_EXPANSION_IPV6_TCP,
+};
+
+/** Supported expansion of items. */
+static const struct rte_flow_expand_node mlx5_support_expansion[] = {
+ [MLX5_EXPANSION_ROOT] = {
+ .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
+ MLX5_EXPANSION_IPV4,
+ MLX5_EXPANSION_IPV6),
+ .type = RTE_FLOW_ITEM_TYPE_END,
+ },
+ [MLX5_EXPANSION_ETH] = {
+ .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
+ MLX5_EXPANSION_IPV6),
+ .type = RTE_FLOW_ITEM_TYPE_ETH,
+ },
+ [MLX5_EXPANSION_IPV4] = {
+ .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4_UDP,
+ MLX5_EXPANSION_IPV4_TCP),
+ .type = RTE_FLOW_ITEM_TYPE_IPV4,
+ .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
+ ETH_RSS_NONFRAG_IPV4_OTHER,
+ },
+ [MLX5_EXPANSION_IPV4_UDP] = {
+ .type = RTE_FLOW_ITEM_TYPE_UDP,
+ .rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
+ },
+ [MLX5_EXPANSION_IPV4_TCP] = {
+ .type = RTE_FLOW_ITEM_TYPE_TCP,
+ .rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
+ },
+ [MLX5_EXPANSION_IPV6] = {
+ .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV6_UDP,
+ MLX5_EXPANSION_IPV6_TCP),
+ .type = RTE_FLOW_ITEM_TYPE_IPV6,
+ .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
+ ETH_RSS_NONFRAG_IPV6_OTHER,
+ },
+ [MLX5_EXPANSION_IPV6_UDP] = {
+ .type = RTE_FLOW_ITEM_TYPE_UDP,
+ .rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
+ },
+ [MLX5_EXPANSION_IPV6_TCP] = {
+ .type = RTE_FLOW_ITEM_TYPE_TCP,
+ .rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
+ },
+};
+
/** Handles information leading to a drop fate. */
struct mlx5_flow_verbs {
+ LIST_ENTRY(mlx5_flow_verbs) next;
unsigned int size; /**< Size of the attribute. */
struct {
struct ibv_flow_attr *attr;
};
struct ibv_flow *flow; /**< Verbs flow pointer. */
struct mlx5_hrxq *hrxq; /**< Hash Rx queue object. */
+ uint64_t hash_fields; /**< Verbs hash Rx queue hash fields. */
};
/* Flow structure. */
uint32_t fate;
/**< Bit-fields of present fate see MLX5_FLOW_FATE_*. */
uint8_t l3_protocol; /**< valid when l3_protocol_en is set. */
- struct mlx5_flow_verbs verbs; /* Verbs flow. */
- uint16_t queue; /**< Destination queue to redirect traffic to. */
+ LIST_HEAD(verbs, mlx5_flow_verbs) verbs; /**< Verbs flows list. */
+ struct mlx5_flow_verbs *cur_verbs;
+ /**< Current Verbs flow structure being filled. */
+ struct rte_flow_action_rss rss;/**< RSS context. */
+ uint8_t key[MLX5_RSS_HASH_KEY_LEN]; /**< RSS hash key. */
+ uint16_t (*queue)[]; /**< Destination queues to redirect traffic to. */
};
static const struct rte_flow_ops mlx5_flow_ops = {
uint16_t size;
};
- /**
- * Discover the maximum number of priority available.
- *
- * @param[in] dev
- * Pointer to Ethernet device.
- *
- * @return
- * number of supported flow priority on success, a negative errno value
- * otherwise and rte_errno is set.
- */
+/*
+ * Number of sub priorities.
+ * For each kind of pattern matching i.e. L2, L3, L4 to have a correct
+ * matching on the NIC (firmware dependent) L4 most have the higher priority
+ * followed by L3 and ending with L2.
+ */
+#define MLX5_PRIORITY_MAP_L2 2
+#define MLX5_PRIORITY_MAP_L3 1
+#define MLX5_PRIORITY_MAP_L4 0
+#define MLX5_PRIORITY_MAP_MAX 3
+
+/* Map of Verbs to Flow priority with 8 Verbs priorities. */
+static const uint32_t priority_map_3[][MLX5_PRIORITY_MAP_MAX] = {
+ { 0, 1, 2 }, { 2, 3, 4 }, { 5, 6, 7 },
+};
+
+/* Map of Verbs to Flow priority with 16 Verbs priorities. */
+static const uint32_t priority_map_5[][MLX5_PRIORITY_MAP_MAX] = {
+ { 0, 1, 2 }, { 3, 4, 5 }, { 6, 7, 8 },
+ { 9, 10, 11 }, { 12, 13, 14 },
+};
+
+/**
+ * Discover the maximum number of priority available.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ *
+ * @return
+ * number of supported flow priority on success, a negative errno
+ * value otherwise and rte_errno is set.
+ */
int
mlx5_flow_discover_priorities(struct rte_eth_dev *dev)
{
struct mlx5_hrxq *drop = mlx5_hrxq_drop_new(dev);
uint16_t vprio[] = { 8, 16 };
int i;
+ int priority = 0;
if (!drop) {
rte_errno = ENOTSUP;
if (!flow)
break;
claim_zero(mlx5_glue->destroy_flow(flow));
+ priority = vprio[i];
+ }
+ switch (priority) {
+ case 8:
+ priority = RTE_DIM(priority_map_3);
+ break;
+ case 16:
+ priority = RTE_DIM(priority_map_5);
+ break;
+ default:
+ rte_errno = ENOTSUP;
+ DRV_LOG(ERR,
+ "port %u verbs maximum priority: %d expected 8/16",
+ dev->data->port_id, vprio[i]);
+ return -rte_errno;
}
mlx5_hrxq_drop_release(dev);
DRV_LOG(INFO, "port %u flow maximum priority: %d",
- dev->data->port_id, vprio[i - 1]);
- return vprio[i - 1];
+ dev->data->port_id, priority);
+ return priority;
+}
+
+/**
+ * Adjust flow priority.
+ *
+ * @param dev
+ * Pointer to Ethernet device.
+ * @param flow
+ * Pointer to an rte flow.
+ */
+static void
+mlx5_flow_adjust_priority(struct rte_eth_dev *dev, struct rte_flow *flow)
+{
+ struct priv *priv = dev->data->dev_private;
+ uint32_t priority = flow->attributes.priority;
+ uint32_t subpriority = flow->cur_verbs->attr->priority;
+
+ switch (priv->config.flow_prio) {
+ case RTE_DIM(priority_map_3):
+ priority = priority_map_3[priority][subpriority];
+ break;
+ case RTE_DIM(priority_map_5):
+ priority = priority_map_5[priority][subpriority];
+ break;
+ }
+ flow->cur_verbs->attr->priority = priority;
}
/**
struct rte_flow_error *error)
{
uint32_t priority_max =
- ((struct priv *)dev->data->dev_private)->config.flow_prio;
+ ((struct priv *)dev->data->dev_private)->config.flow_prio - 1;
if (attributes->group)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
NULL,
"groups is not supported");
- if (attributes->priority >= priority_max)
+ if (attributes->priority != MLX5_FLOW_PRIO_RSVD &&
+ attributes->priority >= priority_max)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
NULL,
NULL,
"ingress attribute is mandatory");
flow->attributes = *attributes;
+ if (attributes->priority == MLX5_FLOW_PRIO_RSVD)
+ flow->attributes.priority = priority_max;
return 0;
}
}
/**
- * Add a verbs specification into @p flow.
+ * Add a verbs item specification into @p flow.
*
* @param[in, out] flow
* Pointer to flow structure.
static void
mlx5_flow_spec_verbs_add(struct rte_flow *flow, void *src, unsigned int size)
{
- if (flow->verbs.specs) {
+ struct mlx5_flow_verbs *verbs = flow->cur_verbs;
+
+ if (verbs->specs) {
void *dst;
- dst = (void *)(flow->verbs.specs + flow->verbs.size);
+ dst = (void *)(verbs->specs + verbs->size);
memcpy(dst, src, size);
- ++flow->verbs.attr->num_of_specs;
+ ++verbs->attr->num_of_specs;
}
- flow->verbs.size += size;
+ verbs->size += size;
}
/**
}
eth.val.ether_type &= eth.mask.ether_type;
}
+ flow->cur_verbs->attr->priority = MLX5_PRIORITY_MAP_L2;
mlx5_flow_spec_verbs_add(flow, ð, size);
return size;
}
.inner_type = RTE_BE16(0xffff),
};
unsigned int size = sizeof(struct ibv_flow_spec_eth);
+ struct mlx5_flow_verbs *verbs = flow->cur_verbs;
struct ibv_flow_spec_eth eth = {
.type = IBV_FLOW_SPEC_ETH,
.size = size,
item->spec,
"VLAN cannot be empty");
if (!(flow->layers & l2m)) {
- if (size <= flow_size)
+ if (size <= flow_size) {
+ flow->cur_verbs->attr->priority = MLX5_PRIORITY_MAP_L2;
mlx5_flow_spec_verbs_add(flow, ð, size);
+ }
} else {
- if (flow->verbs.attr)
- mlx5_flow_item_vlan_update(flow->verbs.attr, ð);
+ if (verbs->attr)
+ mlx5_flow_item_vlan_update(verbs->attr, ð);
size = 0; /* Only an update is done in eth specification. */
}
- flow->layers |= MLX5_FLOW_LAYER_OUTER_L2 |
- MLX5_FLOW_LAYER_OUTER_VLAN;
+ flow->layers |= MLX5_FLOW_LAYER_OUTER_L2 | MLX5_FLOW_LAYER_OUTER_VLAN;
return size;
}
}
flow->l3_protocol_en = !!ipv4.mask.proto;
flow->l3_protocol = ipv4.val.proto;
- if (size <= flow_size)
+ if (size <= flow_size) {
+ uint64_t hash_fields = IBV_RX_HASH_SRC_IPV4 |
+ IBV_RX_HASH_DST_IPV4;
+
+ if (!(flow->rss.types &
+ (ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
+ ETH_RSS_NONFRAG_IPV4_OTHER)))
+ hash_fields = 0;
+ flow->cur_verbs->hash_fields |= hash_fields;
+ flow->cur_verbs->attr->priority = MLX5_PRIORITY_MAP_L3;
mlx5_flow_spec_verbs_add(flow, &ipv4, size);
+ }
return size;
}
}
flow->l3_protocol_en = !!ipv6.mask.next_hdr;
flow->l3_protocol = ipv6.val.next_hdr;
- if (size <= flow_size)
+ if (size <= flow_size) {
+ uint64_t hash_fields = IBV_RX_HASH_SRC_IPV6 |
+ IBV_RX_HASH_DST_IPV6;
+
+ if (!(flow->rss.types &
+ (ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_OTHER)))
+ hash_fields = 0;
+ flow->cur_verbs->hash_fields |= hash_fields;
+ flow->cur_verbs->attr->priority = MLX5_PRIORITY_MAP_L3;
mlx5_flow_spec_verbs_add(flow, &ipv6, size);
+ }
return size;
}
};
int ret;
- if (!(flow->layers & MLX5_FLOW_LAYER_OUTER_L3))
+ if (flow->l3_protocol_en && flow->l3_protocol != MLX5_IP_PROTOCOL_UDP)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
- "L3 is mandatory to filter on L4");
- if (flow->layers & MLX5_FLOW_LAYER_OUTER_L4)
+ "protocol filtering not compatible"
+ " with UDP layer");
+ if (!(flow->layers & MLX5_FLOW_LAYER_OUTER_L3))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
- "L4 layer is already present");
- if (flow->l3_protocol_en && flow->l3_protocol != MLX5_IP_PROTOCOL_UDP)
+ "L3 is mandatory to filter"
+ " on L4");
+ if (flow->layers & MLX5_FLOW_LAYER_OUTER_L4)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
- "protocol filtering not compatible"
- " with UDP layer");
+ "L4 layer is already"
+ " present");
if (!mask)
mask = &rte_flow_item_udp_mask;
ret = mlx5_flow_item_acceptable
if (ret < 0)
return ret;
flow->layers |= MLX5_FLOW_LAYER_OUTER_L4_UDP;
- if (size > flow_size)
- return size;
if (spec) {
udp.val.dst_port = spec->hdr.dst_port;
udp.val.src_port = spec->hdr.src_port;
udp.val.src_port &= udp.mask.src_port;
udp.val.dst_port &= udp.mask.dst_port;
}
- mlx5_flow_spec_verbs_add(flow, &udp, size);
+ if (size <= flow_size) {
+ uint64_t hash_fields = IBV_RX_HASH_SRC_PORT_UDP |
+ IBV_RX_HASH_DST_PORT_UDP;
+
+ if (!(flow->rss.types & ETH_RSS_UDP))
+ hash_fields = 0;
+ flow->cur_verbs->hash_fields |= hash_fields;
+ flow->cur_verbs->attr->priority = MLX5_PRIORITY_MAP_L4;
+ mlx5_flow_spec_verbs_add(flow, &udp, size);
+ }
return size;
}
if (ret < 0)
return ret;
flow->layers |= MLX5_FLOW_LAYER_OUTER_L4_TCP;
- if (size > flow_size)
- return size;
if (spec) {
tcp.val.dst_port = spec->hdr.dst_port;
tcp.val.src_port = spec->hdr.src_port;
tcp.val.src_port &= tcp.mask.src_port;
tcp.val.dst_port &= tcp.mask.dst_port;
}
- mlx5_flow_spec_verbs_add(flow, &tcp, size);
+ if (size <= flow_size) {
+ uint64_t hash_fields = IBV_RX_HASH_SRC_PORT_TCP |
+ IBV_RX_HASH_DST_PORT_TCP;
+
+ if (!(flow->rss.types & ETH_RSS_TCP))
+ hash_fields = 0;
+ flow->cur_verbs->hash_fields |= hash_fields;
+ flow->cur_verbs->attr->priority = MLX5_PRIORITY_MAP_L4;
+ mlx5_flow_spec_verbs_add(flow, &tcp, size);
+ }
return size;
}
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&queue->index,
"queue is not configured");
- flow->queue = queue->index;
+ if (flow->queue)
+ (*flow->queue)[0] = queue->index;
+ flow->rss.queue_num = 1;
flow->fate |= MLX5_FLOW_FATE_QUEUE;
return 0;
}
+/**
+ * Ensure the @p action will be understood and used correctly by the NIC.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param action[in]
+ * Pointer to flow actions array.
+ * @param flow[in, out]
+ * Pointer to the rte_flow structure.
+ * @param error[in, out]
+ * Pointer to error structure.
+ *
+ * @return
+ * On success @p flow->queue array and @p flow->rss are filled and valid.
+ * On error, a negative errno value is returned and rte_errno is set.
+ */
+static int
+mlx5_flow_action_rss(struct rte_eth_dev *dev,
+ const struct rte_flow_action *action,
+ struct rte_flow *flow,
+ struct rte_flow_error *error)
+{
+ struct priv *priv = dev->data->dev_private;
+ const struct rte_flow_action_rss *rss = action->conf;
+ unsigned int i;
+
+ if (flow->fate)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ action,
+ "multiple fate actions are not"
+ " supported");
+ if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT &&
+ rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION_CONF,
+ &rss->func,
+ "RSS hash function not supported");
+ if (rss->level > 1)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION_CONF,
+ &rss->level,
+ "tunnel RSS is not supported");
+ if (rss->key_len < MLX5_RSS_HASH_KEY_LEN)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION_CONF,
+ &rss->key_len,
+ "RSS hash key too small");
+ if (rss->key_len > MLX5_RSS_HASH_KEY_LEN)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION_CONF,
+ &rss->key_len,
+ "RSS hash key too large");
+ if (rss->queue_num > priv->config.ind_table_max_size)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION_CONF,
+ &rss->queue_num,
+ "number of queues too large");
+ if (rss->types & MLX5_RSS_HF_MASK)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION_CONF,
+ &rss->types,
+ "some RSS protocols are not"
+ " supported");
+ for (i = 0; i != rss->queue_num; ++i) {
+ if (!(*priv->rxqs)[rss->queue[i]])
+ return rte_flow_error_set
+ (error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION_CONF,
+ &rss->queue[i],
+ "queue is not configured");
+ }
+ if (flow->queue)
+ memcpy((*flow->queue), rss->queue,
+ rss->queue_num * sizeof(uint16_t));
+ flow->rss.queue_num = rss->queue_num;
+ memcpy(flow->key, rss->key, MLX5_RSS_HASH_KEY_LEN);
+ flow->rss.types = rss->types;
+ flow->fate |= MLX5_FLOW_FATE_RSS;
+ return 0;
+}
+
/**
* Convert the @p action into a Verbs specification after ensuring the NIC
* will understand and process it correctly.
.size = size,
.tag_id = mlx5_flow_mark_set(MLX5_FLOW_MARK_DEFAULT),
};
+ struct mlx5_flow_verbs *verbs = flow->cur_verbs;
if (flow->modifier & MLX5_FLOW_MOD_FLAG)
return rte_flow_error_set(error, ENOTSUP,
"flag is not compatible with drop"
" action");
if (flow->modifier & MLX5_FLOW_MOD_MARK)
- return 0;
- flow->modifier |= MLX5_FLOW_MOD_FLAG;
- if (size <= flow_size)
+ size = 0;
+ else if (size <= flow_size && verbs)
mlx5_flow_spec_verbs_add(flow, &tag, size);
+ flow->modifier |= MLX5_FLOW_MOD_FLAG;
return size;
}
/**
* Update verbs specification to modify the flag to mark.
*
- * @param[in, out] flow
- * Pointer to the rte_flow structure.
+ * @param[in, out] verbs
+ * Pointer to the mlx5_flow_verbs structure.
* @param[in] mark_id
* Mark identifier to replace the flag.
*/
static void
-mlx5_flow_verbs_mark_update(struct rte_flow *flow, uint32_t mark_id)
+mlx5_flow_verbs_mark_update(struct mlx5_flow_verbs *verbs, uint32_t mark_id)
{
struct ibv_spec_header *hdr;
int i;
+ if (!verbs)
+ return;
/* Update Verbs specification. */
- hdr = (struct ibv_spec_header *)flow->verbs.specs;
+ hdr = (struct ibv_spec_header *)verbs->specs;
if (!hdr)
return;
- for (i = 0; i != flow->verbs.attr->num_of_specs; ++i) {
+ for (i = 0; i != verbs->attr->num_of_specs; ++i) {
if (hdr->type == IBV_FLOW_SPEC_ACTION_TAG) {
struct ibv_flow_spec_action_tag *t =
(struct ibv_flow_spec_action_tag *)hdr;
.type = IBV_FLOW_SPEC_ACTION_TAG,
.size = size,
};
+ struct mlx5_flow_verbs *verbs = flow->cur_verbs;
if (!mark)
return rte_flow_error_set(error, EINVAL,
"mark is not compatible with drop"
" action");
if (flow->modifier & MLX5_FLOW_MOD_FLAG) {
- mlx5_flow_verbs_mark_update(flow, mark->id);
- size = 0; /**< Only an update is done in the specification. */
- } else {
+ mlx5_flow_verbs_mark_update(verbs, mark->id);
+ size = 0;
+ } else if (size <= flow_size) {
tag.tag_id = mlx5_flow_mark_set(mark->id);
- if (size <= flow_size) {
- tag.tag_id = mlx5_flow_mark_set(mark->id);
- mlx5_flow_spec_verbs_add(flow, &tag, size);
- }
+ mlx5_flow_spec_verbs_add(flow, &tag, size);
}
flow->modifier |= MLX5_FLOW_MOD_MARK;
return size;
case RTE_FLOW_ACTION_TYPE_QUEUE:
ret = mlx5_flow_action_queue(dev, actions, flow, error);
break;
+ case RTE_FLOW_ACTION_TYPE_RSS:
+ ret = mlx5_flow_action_rss(dev, actions, flow, error);
+ break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
struct rte_flow_error *error)
{
struct rte_flow local_flow = { .layers = 0, };
- size_t size = sizeof(*flow) + sizeof(struct ibv_flow_attr);
- int remain = (flow_size > size) ? flow_size - size : 0;
+ size_t size = sizeof(*flow);
+ union {
+ struct rte_flow_expand_rss buf;
+ uint8_t buffer[2048];
+ } expand_buffer;
+ struct rte_flow_expand_rss *buf = &expand_buffer.buf;
+ struct mlx5_flow_verbs *original_verbs = NULL;
+ size_t original_verbs_size = 0;
+ uint32_t original_layers = 0;
+ int expanded_pattern_idx = 0;
int ret;
+ uint32_t i;
- if (!remain)
+ if (size > flow_size)
flow = &local_flow;
ret = mlx5_flow_attributes(dev, attributes, flow, error);
if (ret < 0)
return ret;
- ret = mlx5_flow_items(pattern, flow, remain, error);
- if (ret < 0)
- return ret;
- size += ret;
- remain = (flow_size > size) ? flow_size - size : 0;
- ret = mlx5_flow_actions(dev, actions, flow, remain, error);
+ ret = mlx5_flow_actions(dev, actions, &local_flow, 0, error);
if (ret < 0)
return ret;
- size += ret;
+ if (local_flow.rss.types) {
+ ret = rte_flow_expand_rss(buf, sizeof(expand_buffer.buffer),
+ pattern, local_flow.rss.types,
+ mlx5_support_expansion,
+ MLX5_EXPANSION_ROOT);
+ assert(ret > 0 &&
+ (unsigned int)ret < sizeof(expand_buffer.buffer));
+ } else {
+ buf->entries = 1;
+ buf->entry[0].pattern = (void *)(uintptr_t)pattern;
+ }
+ size += RTE_ALIGN_CEIL(local_flow.rss.queue_num * sizeof(uint16_t),
+ sizeof(void *));
if (size <= flow_size)
- flow->verbs.attr->priority = flow->attributes.priority;
+ flow->queue = (void *)(flow + 1);
+ LIST_INIT(&flow->verbs);
+ flow->layers = 0;
+ flow->modifier = 0;
+ flow->fate = 0;
+ for (i = 0; i != buf->entries; ++i) {
+ size_t off = size;
+ size_t off2;
+
+ flow->layers = original_layers;
+ size += sizeof(struct ibv_flow_attr) +
+ sizeof(struct mlx5_flow_verbs);
+ off2 = size;
+ if (size < flow_size) {
+ flow->cur_verbs = (void *)((uintptr_t)flow + off);
+ flow->cur_verbs->attr = (void *)(flow->cur_verbs + 1);
+ flow->cur_verbs->specs =
+ (void *)(flow->cur_verbs->attr + 1);
+ }
+ /* First iteration convert the pattern into Verbs. */
+ if (i == 0) {
+ /* Actions don't need to be converted several time. */
+ ret = mlx5_flow_actions(dev, actions, flow,
+ (size < flow_size) ?
+ flow_size - size : 0,
+ error);
+ if (ret < 0)
+ return ret;
+ size += ret;
+ } else {
+ /*
+ * Next iteration means the pattern has already been
+ * converted and an expansion is necessary to match
+ * the user RSS request. For that only the expanded
+ * items will be converted, the common part with the
+ * user pattern are just copied into the next buffer
+ * zone.
+ */
+ size += original_verbs_size;
+ if (size < flow_size) {
+ rte_memcpy(flow->cur_verbs->attr,
+ original_verbs->attr,
+ original_verbs_size +
+ sizeof(struct ibv_flow_attr));
+ flow->cur_verbs->size = original_verbs_size;
+ }
+ }
+ ret = mlx5_flow_items
+ ((const struct rte_flow_item *)
+ &buf->entry[i].pattern[expanded_pattern_idx],
+ flow,
+ (size < flow_size) ? flow_size - size : 0, error);
+ if (ret < 0)
+ return ret;
+ size += ret;
+ if (size <= flow_size) {
+ mlx5_flow_adjust_priority(dev, flow);
+ LIST_INSERT_HEAD(&flow->verbs, flow->cur_verbs, next);
+ }
+ /*
+ * Keep a pointer of the first verbs conversion and the layers
+ * it has encountered.
+ */
+ if (i == 0) {
+ original_verbs = flow->cur_verbs;
+ original_verbs_size = size - off2;
+ original_layers = flow->layers;
+ /*
+ * move the index of the expanded pattern to the
+ * first item not addressed yet.
+ */
+ if (pattern->type == RTE_FLOW_ITEM_TYPE_END) {
+ expanded_pattern_idx++;
+ } else {
+ const struct rte_flow_item *item = pattern;
+
+ for (item = pattern;
+ item->type != RTE_FLOW_ITEM_TYPE_END;
+ ++item)
+ expanded_pattern_idx++;
+ }
+ }
+ }
+ /* Restore the origin layers in the flow. */
+ flow->layers = original_layers;
return size;
}
struct priv *priv = dev->data->dev_private;
if (flow->modifier & (MLX5_FLOW_MOD_FLAG | MLX5_FLOW_MOD_MARK)) {
- struct mlx5_rxq_ctrl *rxq_ctrl =
- container_of((*priv->rxqs)[flow->queue],
- struct mlx5_rxq_ctrl, rxq);
+ unsigned int i;
+
+ for (i = 0; i != flow->rss.queue_num; ++i) {
+ int idx = (*flow->queue)[i];
+ struct mlx5_rxq_ctrl *rxq_ctrl =
+ container_of((*priv->rxqs)[idx],
+ struct mlx5_rxq_ctrl, rxq);
- rxq_ctrl->rxq.mark = 1;
- rxq_ctrl->flow_mark_n++;
+ rxq_ctrl->rxq.mark = 1;
+ rxq_ctrl->flow_mark_n++;
+ }
}
}
struct priv *priv = dev->data->dev_private;
if (flow->modifier & (MLX5_FLOW_MOD_FLAG | MLX5_FLOW_MOD_MARK)) {
- struct mlx5_rxq_ctrl *rxq_ctrl =
- container_of((*priv->rxqs)[flow->queue],
- struct mlx5_rxq_ctrl, rxq);
+ unsigned int i;
+
+ for (i = 0; i != flow->rss.queue_num; ++i) {
+ int idx = (*flow->queue)[i];
+ struct mlx5_rxq_ctrl *rxq_ctrl =
+ container_of((*priv->rxqs)[idx],
+ struct mlx5_rxq_ctrl, rxq);
- rxq_ctrl->flow_mark_n--;
- rxq_ctrl->rxq.mark = !!rxq_ctrl->flow_mark_n;
+ rxq_ctrl->flow_mark_n--;
+ rxq_ctrl->rxq.mark = !!rxq_ctrl->flow_mark_n;
+ }
}
}
static void
mlx5_flow_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
{
- if (flow->fate & MLX5_FLOW_FATE_DROP) {
- if (flow->verbs.flow) {
- claim_zero(mlx5_glue->destroy_flow(flow->verbs.flow));
- flow->verbs.flow = NULL;
+ struct mlx5_flow_verbs *verbs;
+
+ LIST_FOREACH(verbs, &flow->verbs, next) {
+ if (verbs->flow) {
+ claim_zero(mlx5_glue->destroy_flow(verbs->flow));
+ verbs->flow = NULL;
+ }
+ if (verbs->hrxq) {
+ if (flow->fate & MLX5_FLOW_FATE_DROP)
+ mlx5_hrxq_drop_release(dev);
+ else
+ mlx5_hrxq_release(dev, verbs->hrxq);
+ verbs->hrxq = NULL;
}
- }
- if (flow->verbs.hrxq) {
- if (flow->fate & MLX5_FLOW_FATE_DROP)
- mlx5_hrxq_drop_release(dev);
- else if (flow->fate & MLX5_FLOW_FATE_QUEUE)
- mlx5_hrxq_release(dev, flow->verbs.hrxq);
- flow->verbs.hrxq = NULL;
}
}
mlx5_flow_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
struct rte_flow_error *error)
{
- if (flow->fate & MLX5_FLOW_FATE_DROP) {
- flow->verbs.hrxq = mlx5_hrxq_drop_new(dev);
- if (!flow->verbs.hrxq)
- return rte_flow_error_set
- (error, errno,
- RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
- NULL,
- "cannot allocate Drop queue");
- } else if (flow->fate & MLX5_FLOW_FATE_QUEUE) {
- struct mlx5_hrxq *hrxq;
-
- hrxq = mlx5_hrxq_get(dev, rss_hash_default_key,
- MLX5_RSS_HASH_KEY_LEN, 0,
- &flow->queue, 1, 0, 0);
- if (!hrxq)
- hrxq = mlx5_hrxq_new(dev, rss_hash_default_key,
- MLX5_RSS_HASH_KEY_LEN, 0,
- &flow->queue, 1, 0, 0);
- if (!hrxq)
- return rte_flow_error_set(error, rte_errno,
- RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
- NULL,
- "cannot create flow");
- flow->verbs.hrxq = hrxq;
- }
- flow->verbs.flow =
- mlx5_glue->create_flow(flow->verbs.hrxq->qp, flow->verbs.attr);
- if (!flow->verbs.flow) {
- if (flow->fate & MLX5_FLOW_FATE_DROP)
- mlx5_hrxq_drop_release(dev);
- else
- mlx5_hrxq_release(dev, flow->verbs.hrxq);
- flow->verbs.hrxq = NULL;
- return rte_flow_error_set(error, errno,
- RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
- NULL,
- "kernel module refuses to create"
- " flow");
+ struct mlx5_flow_verbs *verbs;
+ int err;
+
+ LIST_FOREACH(verbs, &flow->verbs, next) {
+ if (flow->fate & MLX5_FLOW_FATE_DROP) {
+ verbs->hrxq = mlx5_hrxq_drop_new(dev);
+ if (!verbs->hrxq) {
+ rte_flow_error_set
+ (error, errno,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+ NULL,
+ "cannot get drop hash queue");
+ goto error;
+ }
+ } else {
+ struct mlx5_hrxq *hrxq;
+
+ hrxq = mlx5_hrxq_get(dev, flow->key,
+ MLX5_RSS_HASH_KEY_LEN,
+ verbs->hash_fields,
+ (*flow->queue),
+ flow->rss.queue_num, 0, 0);
+ if (!hrxq)
+ hrxq = mlx5_hrxq_new(dev, flow->key,
+ MLX5_RSS_HASH_KEY_LEN,
+ verbs->hash_fields,
+ (*flow->queue),
+ flow->rss.queue_num, 0, 0);
+ if (!hrxq) {
+ rte_flow_error_set
+ (error, rte_errno,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+ NULL,
+ "cannot get hash queue");
+ goto error;
+ }
+ verbs->hrxq = hrxq;
+ }
+ verbs->flow =
+ mlx5_glue->create_flow(verbs->hrxq->qp, verbs->attr);
+ if (!verbs->flow) {
+ rte_flow_error_set(error, errno,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+ NULL,
+ "hardware refuses to create flow");
+ goto error;
+ }
}
return 0;
+error:
+ err = rte_errno; /* Save rte_errno before cleanup. */
+ LIST_FOREACH(verbs, &flow->verbs, next) {
+ if (verbs->hrxq) {
+ if (flow->fate & MLX5_FLOW_FATE_DROP)
+ mlx5_hrxq_drop_release(dev);
+ else
+ mlx5_hrxq_release(dev, verbs->hrxq);
+ verbs->hrxq = NULL;
+ }
+ }
+ rte_errno = err; /* Restore rte_errno. */
+ return -rte_errno;
}
/**
const struct rte_flow_action actions[],
struct rte_flow_error *error)
{
- struct rte_flow *flow;
- size_t size;
+ struct rte_flow *flow = NULL;
+ size_t size = 0;
int ret;
- ret = mlx5_flow_merge(dev, NULL, 0, attr, items, actions, error);
+ ret = mlx5_flow_merge(dev, flow, size, attr, items, actions, error);
if (ret < 0)
return NULL;
size = ret;
- flow = rte_zmalloc(__func__, size, 0);
+ flow = rte_calloc(__func__, 1, size, 0);
if (!flow) {
rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
- "cannot allocate memory");
+ "not enough memory to create flow");
return NULL;
}
- flow->verbs.attr = (struct ibv_flow_attr *)(flow + 1);
- flow->verbs.specs = (uint8_t *)(flow->verbs.attr + 1);
ret = mlx5_flow_merge(dev, flow, size, attr, items, actions, error);
- if (ret < 0)
- goto error;
+ if (ret < 0) {
+ rte_free(flow);
+ return NULL;
+ }
assert((size_t)ret == size);
if (dev->data->dev_started) {
ret = mlx5_flow_apply(dev, flow, error);
- if (ret < 0)
- goto error;
+ if (ret < 0) {
+ ret = rte_errno; /* Save rte_errno before cleanup. */
+ if (flow) {
+ mlx5_flow_remove(dev, flow);
+ rte_free(flow);
+ }
+ rte_errno = ret; /* Restore rte_errno. */
+ return NULL;
+ }
}
mlx5_flow_rxq_mark_set(dev, flow);
TAILQ_INSERT_TAIL(list, flow, next);
return flow;
-error:
- ret = rte_errno; /* Save rte_errno before cleanup. */
- mlx5_flow_remove(dev, flow);
- rte_free(flow);
- rte_errno = ret; /* Restore rte_errno. */
- return NULL;
}
/**
struct priv *priv = dev->data->dev_private;
const struct rte_flow_attr attr = {
.ingress = 1,
- .priority = priv->config.flow_prio - 1,
+ .priority = MLX5_FLOW_PRIO_RSVD,
};
struct rte_flow_item items[] = {
{
git.droids-corp.org / dpdk.git / commitdiff