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From: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
To: dev@dpdk.org
Cc: matan@mellanox.com, rasland@mellanox.com, thomas@monjalon.net,
	orika@mellanox.com, Yongseok Koh <yskoh@mellanox.com>
Subject: [dpdk-dev] [PATCH 11/20] net/mlx5: check the maximal modify actions number
Date: Tue,  5 Nov 2019 08:01:46 +0000
Message-ID: <1572940915-29416-12-git-send-email-viacheslavo@mellanox.com> (raw)
In-Reply-To: <1572940915-29416-1-git-send-email-viacheslavo@mellanox.com>

If the extensive metadata registers are supported,
it can be regarded inclusively that the extensive
metadata support is possible. E.g. metadata register
copy action, supporting 16 modify header actions,
reserving register across different steering domain
(FDB and NIC) and so on.

This patch handles the maximal amount of header modify
actions depending on discovered metadata registers
support.

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
---
 drivers/net/mlx5/mlx5_flow.h    |  9 +++++++--
 drivers/net/mlx5/mlx5_flow_dv.c | 25 +++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index f2b6726..c1d0a65 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -348,8 +348,13 @@ struct mlx5_flow_dv_tag_resource {
 	uint32_t tag; /**< the tag value. */
 };
 
-/* Number of modification commands. */
-#define MLX5_MODIFY_NUM 8
+/*
+ * Number of modification commands.
+ * If extensive metadata registers are supported
+ * the maximal actions amount is 16 and 8 otherwise.
+ */
+#define MLX5_MODIFY_NUM 16
+#define MLX5_MODIFY_NUM_NO_MREG 8
 
 /* Modify resource structure */
 struct mlx5_flow_dv_modify_hdr_resource {
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 049d6ae..f83c6ff 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -2732,6 +2732,27 @@ struct field_modify_info modify_tcp[] = {
 }
 
 /**
+ * Get the maximum number of modify header actions.
+ *
+ * @param dev
+ *   Pointer to rte_eth_dev structure.
+ *
+ * @return
+ *   Max number of modify header actions device can support.
+ */
+static unsigned int
+flow_dv_modify_hdr_action_max(struct rte_eth_dev *dev)
+{
+	/*
+	 * There's no way to directly query the max cap. Although it has to be
+	 * acquried by iterative trial, it is a safe assumption that more
+	 * actions are supported by FW if extensive metadata register is
+	 * supported.
+	 */
+	return mlx5_flow_ext_mreg_supported(dev) ? MLX5_MODIFY_NUM :
+						   MLX5_MODIFY_NUM_NO_MREG;
+}
+/**
  * Find existing modify-header resource or create and register a new one.
  *
  * @param dev[in, out]
@@ -2758,6 +2779,10 @@ struct field_modify_info modify_tcp[] = {
 	struct mlx5_flow_dv_modify_hdr_resource *cache_resource;
 	struct mlx5dv_dr_domain *ns;
 
+	if (resource->actions_num > flow_dv_modify_hdr_action_max(dev))
+		return rte_flow_error_set(error, EOVERFLOW,
+					  RTE_FLOW_ERROR_TYPE_ACTION, NULL,
+					  "too many modify header items");
 	if (resource->ft_type == MLX5DV_FLOW_TABLE_TYPE_FDB)
 		ns = sh->fdb_domain;
 	else if (resource->ft_type == MLX5DV_FLOW_TABLE_TYPE_NIC_TX)
-- 
1.8.3.1


  parent reply index

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-05  8:01 [dpdk-dev] [PATCH 00/20] net/mlx5: implement extensive metadata feature Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 01/20] net/mlx5: convert internal tag endianness Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 02/20] net/mlx5: update modify header action translator Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 03/20] net/mlx5: add metadata register copy Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 04/20] net/mlx5: refactor flow structure Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 05/20] net/mlx5: update flow functions Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 06/20] net/mlx5: update meta register matcher set Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 07/20] net/mlx5: rename structure and function Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 08/20] net/mlx5: check metadata registers availability Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 09/20] net/mlx5: add devarg for extensive metadata support Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 10/20] net/mlx5: adjust shared register according to mask Viacheslav Ovsiienko
2019-11-05  8:01 ` Viacheslav Ovsiienko [this message]
2019-11-05  8:01 ` [dpdk-dev] [PATCH 12/20] net/mlx5: update metadata register id query Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 13/20] net/mlx5: add flow tag support Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 14/20] net/mlx5: extend flow mark support Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 15/20] net/mlx5: extend flow meta data support Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 16/20] net/mlx5: add meta data support to Rx datapath Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 17/20] net/mlx5: add simple hash table Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 18/20] net/mlx5: introduce flow splitters chain Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 19/20] net/mlx5: split Rx flows to provide metadata copy Viacheslav Ovsiienko
2019-11-05  8:01 ` [dpdk-dev] [PATCH 20/20] net/mlx5: add metadata register copy table Viacheslav Ovsiienko
2019-11-05  9:35 ` [dpdk-dev] [PATCH 00/20] net/mlx5: implement extensive metadata feature Matan Azrad
2019-11-06 17:37 ` [dpdk-dev] [PATCH v2 00/19] " Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 01/19] net/mlx5: convert internal tag endianness Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 02/19] net/mlx5: update modify header action translator Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 03/19] net/mlx5: add metadata register copy Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 04/19] net/mlx5: refactor flow structure Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 05/19] net/mlx5: update flow functions Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 06/19] net/mlx5: update meta register matcher set Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 07/19] net/mlx5: rename structure and function Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 08/19] net/mlx5: check metadata registers availability Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 09/19] net/mlx5: add devarg for extensive metadata support Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 10/19] net/mlx5: adjust shared register according to mask Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 11/19] net/mlx5: check the maximal modify actions number Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 12/19] net/mlx5: update metadata register id query Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 13/19] net/mlx5: add flow tag support Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 14/19] net/mlx5: extend flow mark support Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 15/19] net/mlx5: extend flow meta data support Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 16/19] net/mlx5: add meta data support to Rx datapath Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 17/19] net/mlx5: introduce flow splitters chain Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 18/19] net/mlx5: split Rx flows to provide metadata copy Viacheslav Ovsiienko
2019-11-06 17:37   ` [dpdk-dev] [PATCH v2 19/19] net/mlx5: add metadata register copy table Viacheslav Ovsiienko
2019-11-07 17:09 ` [dpdk-dev] [PATCH v3 00/19] net/mlx5: implement extensive metadata feature Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 01/19] net/mlx5: convert internal tag endianness Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 02/19] net/mlx5: update modify header action translator Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 03/19] net/mlx5: add metadata register copy Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 04/19] net/mlx5: refactor flow structure Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 05/19] net/mlx5: update flow functions Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 06/19] net/mlx5: update meta register matcher set Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 07/19] net/mlx5: rename structure and function Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 08/19] net/mlx5: check metadata registers availability Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 09/19] net/mlx5: add devarg for extensive metadata support Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 10/19] net/mlx5: adjust shared register according to mask Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 11/19] net/mlx5: check the maximal modify actions number Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 12/19] net/mlx5: update metadata register id query Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 13/19] net/mlx5: add flow tag support Viacheslav Ovsiienko
2019-11-07 17:09   ` [dpdk-dev] [PATCH v3 14/19] net/mlx5: extend flow mark support Viacheslav Ovsiienko
2019-11-07 17:10   ` [dpdk-dev] [PATCH v3 15/19] net/mlx5: extend flow meta data support Viacheslav Ovsiienko
2019-11-07 17:10   ` [dpdk-dev] [PATCH v3 16/19] net/mlx5: add meta data support to Rx datapath Viacheslav Ovsiienko
2019-11-25 14:24     ` David Marchand
2019-11-07 17:10   ` [dpdk-dev] [PATCH v3 17/19] net/mlx5: introduce flow splitters chain Viacheslav Ovsiienko
2019-11-07 17:10   ` [dpdk-dev] [PATCH v3 18/19] net/mlx5: split Rx flows to provide metadata copy Viacheslav Ovsiienko
2019-11-07 17:10   ` [dpdk-dev] [PATCH v3 19/19] net/mlx5: add metadata register copy table Viacheslav Ovsiienko
2019-11-07 22:46   ` [dpdk-dev] [PATCH v3 00/19] net/mlx5: implement extensive metadata feature Raslan Darawsheh

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