This patch split out flow RSS hash field handling logic to dedicate
function.
Signed-off-by: Xueming Li <xuemi...@mellanox.com>
---
drivers/net/mlx5/mlx5_flow.c | 94 +++++++++++++++++++++++++-------------------
1 file changed, 53 insertions(+), 41 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index b3ad6dc85..64658bc0e 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -992,13 +992,6 @@ mlx5_flow_update_priority(struct rte_eth_dev *dev,
static void
mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser)
{
- const unsigned int ipv4 =
- hash_rxq_init[parser->layer].ip_version == MLX5_IPV4;
- const enum hash_rxq_type hmin = ipv4 ? HASH_RXQ_TCPV4 : HASH_RXQ_TCPV6;
- const enum hash_rxq_type hmax = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
- const enum hash_rxq_type ohmin = ipv4 ? HASH_RXQ_TCPV6 : HASH_RXQ_TCPV4;
- const enum hash_rxq_type ohmax = ipv4 ? HASH_RXQ_IPV6 : HASH_RXQ_IPV4;
- const enum hash_rxq_type ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
unsigned int i;
/* Remove any other flow not matching the pattern. */
@@ -1011,40 +1004,6 @@ mlx5_flow_convert_finalise(struct mlx5_flow_parse
*parser)
}
return;
}
- if (parser->layer == HASH_RXQ_ETH) {
- goto fill;
- } else {
- /*
- * This layer becomes useless as the pattern define under
- * layers.
- */
- rte_free(parser->queue[HASH_RXQ_ETH].ibv_attr);
- parser->queue[HASH_RXQ_ETH].ibv_attr = NULL;
- }
- /* Remove opposite kind of layer e.g. IPv6 if the pattern is IPv4. */
- for (i = ohmin; i != (ohmax + 1); ++i) {
- if (!parser->queue[i].ibv_attr)
- continue;
- rte_free(parser->queue[i].ibv_attr);
- parser->queue[i].ibv_attr = NULL;
- }
- /* Remove impossible flow according to the RSS configuration. */
- if (hash_rxq_init[parser->layer].dpdk_rss_hf &
- parser->rss_conf.types) {
- /* Remove any other flow. */
- for (i = hmin; i != (hmax + 1); ++i) {
- if ((i == parser->layer) ||
- (!parser->queue[i].ibv_attr))
- continue;
- rte_free(parser->queue[i].ibv_attr);
- parser->queue[i].ibv_attr = NULL;
- }
- } else if (!parser->queue[ip].ibv_attr) {
- /* no RSS possible with the current configuration. */
- parser->rss_conf.queue_num = 1;
- return;
- }
-fill:
/*
* Fill missing layers in verbs specifications, or compute the correct
* offset to allocate the memory space for the attributes and
@@ -1107,6 +1066,56 @@ mlx5_flow_convert_finalise(struct mlx5_flow_parse
*parser)
}
/**
+ * Update flows according to pattern and RSS hash fields.
+ *
+ * @param[in, out] parser
+ * Internal parser structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_convert_rss(struct mlx5_flow_parse *parser)
+{
+ const unsigned int ipv4 =
+ hash_rxq_init[parser->layer].ip_version == MLX5_IPV4;
+ const enum hash_rxq_type hmin = ipv4 ? HASH_RXQ_TCPV4 : HASH_RXQ_TCPV6;
+ const enum hash_rxq_type hmax = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
+ const enum hash_rxq_type ohmin = ipv4 ? HASH_RXQ_TCPV6 : HASH_RXQ_TCPV4;
+ const enum hash_rxq_type ohmax = ipv4 ? HASH_RXQ_IPV6 : HASH_RXQ_IPV4;
+ const enum hash_rxq_type ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
+ unsigned int i;
+
+ if (parser->layer == HASH_RXQ_ETH)
+ return 0;
+ /* This layer becomes useless as the pattern define under layers. */
+ rte_free(parser->queue[HASH_RXQ_ETH].ibv_attr);
+ parser->queue[HASH_RXQ_ETH].ibv_attr = NULL;
+ /* Remove opposite kind of layer e.g. IPv6 if the pattern is IPv4. */
+ for (i = ohmin; i != (ohmax + 1); ++i) {
+ if (!parser->queue[i].ibv_attr)
+ continue;
+ rte_free(parser->queue[i].ibv_attr);
+ parser->queue[i].ibv_attr = NULL;
+ }
+ /* Remove impossible flow according to the RSS configuration. */
+ if (hash_rxq_init[parser->layer].dpdk_rss_hf &
+ parser->rss_conf.types) {
+ /* Remove any other flow. */
+ for (i = hmin; i != (hmax + 1); ++i) {
+ if (i == parser->layer || !parser->queue[i].ibv_attr)
+ continue;
+ rte_free(parser->queue[i].ibv_attr);
+ parser->queue[i].ibv_attr = NULL;
+ }
+ } else if (!parser->queue[ip].ibv_attr) {
+ /* no RSS possible with the current configuration. */
+ parser->rss_conf.queue_num = 1;
+ }
+ return 0;
+}
+
+/**
* Validate and convert a flow supported by the NIC.
*
* @param dev
@@ -1214,6 +1223,9 @@ mlx5_flow_convert(struct rte_eth_dev *dev,
* configuration.
*/
if (!parser->drop)
+ ret = mlx5_flow_convert_rss(parser);
+ if (ret)
+ goto exit_free;
mlx5_flow_convert_finalise(parser);
mlx5_flow_update_priority(dev, parser, attr);
exit_free:
--
2.13.3
