From: Dekel Peled <dekelp@mellanox.com>
To: matan@mellanox.com, viacheslavo@mellanox.com
Cc: rasland@mellanox.com, orika@mellanox.com, dev@dpdk.org, stable@dpdk.org
Subject: [dpdk-stable] [PATCH v2] net/mlx5: optimize Rx hash fields conversion
Date: Tue, 14 Jan 2020 11:18:22 +0200 [thread overview]
Message-ID: <f61c018939774ba0a4ab88532172387221c01639.1578992234.git.dekelp@mellanox.com> (raw)
In-Reply-To: <57bc3225d6cc2dfa0423a86d8ca99aab4ab39e55.1578497959.git.dekelp@mellanox.com>
Previous fix added translation of Rx hash fields to PRM format.
This patch optimizes the fix, to perform value translation only
if value is not zero.
In case value is zero, there is no need to translate it.
Cc: stable@dpdk.org
Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
---
v2: Modify title for clarity, change 'fix' to 'optimize'.
Remove the 'Fixes' label.
---
---
drivers/net/mlx5/mlx5_rxq.c | 34 +++++++++++++++++++---------------
1 file changed, 19 insertions(+), 15 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index ca25e32..c936a7f 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -2460,7 +2460,6 @@ struct mlx5_hrxq *
}
} else { /* ind_tbl->type == MLX5_IND_TBL_TYPE_DEVX */
struct mlx5_devx_tir_attr tir_attr;
- struct mlx5_rx_hash_field_select *rx_hash_field_select;
uint32_t i;
uint32_t lro = 1;
@@ -2474,23 +2473,27 @@ struct mlx5_hrxq *
memset(&tir_attr, 0, sizeof(tir_attr));
tir_attr.disp_type = MLX5_TIRC_DISP_TYPE_INDIRECT;
tir_attr.rx_hash_fn = MLX5_RX_HASH_FN_TOEPLITZ;
-#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
tir_attr.tunneled_offload_en = !!tunnel;
- /* Translate hash_fields bitmap to PRM format. */
- rx_hash_field_select = hash_fields & IBV_RX_HASH_INNER ?
- &tir_attr.rx_hash_field_selector_inner :
- &tir_attr.rx_hash_field_selector_outer;
+ /* If needed, translate hash_fields bitmap to PRM format. */
+ if (hash_fields) {
+#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
+ struct mlx5_rx_hash_field_select *rx_hash_field_select =
+ hash_fields & IBV_RX_HASH_INNER ?
+ &tir_attr.rx_hash_field_selector_inner :
+ &tir_attr.rx_hash_field_selector_outer;
#else
- rx_hash_field_select = &tir_attr.rx_hash_field_selector_outer;
+ struct mlx5_rx_hash_field_select *rx_hash_field_select =
+ &tir_attr.rx_hash_field_selector_outer;
#endif
- /* 1 bit: 0: IPv4, 1: IPv6. */
- rx_hash_field_select->l3_prot_type =
- !!(hash_fields & MLX5_IPV6_IBV_RX_HASH);
- /* 1 bit: 0: TCP, 1: UDP. */
- rx_hash_field_select->l4_prot_type =
- !!(hash_fields & MLX5_UDP_IBV_RX_HASH);
- /* Bitmask which sets which fields to use in RX Hash. */
- rx_hash_field_select->selected_fields =
+
+ /* 1 bit: 0: IPv4, 1: IPv6. */
+ rx_hash_field_select->l3_prot_type =
+ !!(hash_fields & MLX5_IPV6_IBV_RX_HASH);
+ /* 1 bit: 0: TCP, 1: UDP. */
+ rx_hash_field_select->l4_prot_type =
+ !!(hash_fields & MLX5_UDP_IBV_RX_HASH);
+ /* Bitmask which sets which fields to use in RX Hash. */
+ rx_hash_field_select->selected_fields =
((!!(hash_fields & MLX5_L3_SRC_IBV_RX_HASH)) <<
MLX5_RX_HASH_FIELD_SELECT_SELECTED_FIELDS_SRC_IP) |
(!!(hash_fields & MLX5_L3_DST_IBV_RX_HASH)) <<
@@ -2499,6 +2502,7 @@ struct mlx5_hrxq *
MLX5_RX_HASH_FIELD_SELECT_SELECTED_FIELDS_L4_SPORT |
(!!(hash_fields & MLX5_L4_DST_IBV_RX_HASH)) <<
MLX5_RX_HASH_FIELD_SELECT_SELECTED_FIELDS_L4_DPORT;
+ }
if (rxq_ctrl->obj->type == MLX5_RXQ_OBJ_TYPE_DEVX_HAIRPIN)
tir_attr.transport_domain = priv->sh->td->id;
else
--
1.8.3.1
next prev parent reply other threads:[~2020-01-14 9:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-08 15:44 [dpdk-stable] [PATCH] net/mlx5: fix set Rx hash fields only if needed Dekel Peled
2020-01-14 9:18 ` Dekel Peled [this message]
2020-01-14 18:10 ` [dpdk-stable] [dpdk-dev] [PATCH v2] net/mlx5: optimize Rx hash fields conversion Kevin Traynor
2020-01-15 21:19 ` [dpdk-stable] [PATCH v3] " Dekel Peled
2020-01-19 16:41 ` Raslan Darawsheh
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