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From: Rongwei Liu <rongweil@nvidia.com>
To: <dev@dpdk.org>, <matan@nvidia.com>, <viacheslavo@nvidia.com>,
	<orika@nvidia.com>, <suanmingm@nvidia.com>, <thomas@monjalon.net>
Cc: Hamdan Igbaria <hamdani@nvidia.com>, Alex Vesker <valex@nvidia.com>
Subject: [PATCH v4 02/13] net/mlx5/hws: support remove header action
Date: Wed, 1 Nov 2023 06:44:08 +0200	[thread overview]
Message-ID: <20231101044419.732726-3-rongweil@nvidia.com> (raw)
In-Reply-To: <20231101044419.732726-1-rongweil@nvidia.com>

From: Hamdan Igbaria <hamdani@nvidia.com>

Support remove header action, this action will allow the user
to execute dynamic decaps by choosing to decap by providing a
start anchor and number of words to remove, or providing a
start anchor and end anchor.

Signed-off-by: Hamdan Igbaria <hamdani@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Acked-by: Ori Kam <orika@nvidia.com>
---
 drivers/net/mlx5/hws/mlx5dr.h        | 40 +++++++++++++++
 drivers/net/mlx5/hws/mlx5dr_action.c | 77 ++++++++++++++++++++++++++++
 drivers/net/mlx5/hws/mlx5dr_action.h |  7 +++
 drivers/net/mlx5/hws/mlx5dr_debug.c  |  1 +
 4 files changed, 125 insertions(+)

diff --git a/drivers/net/mlx5/hws/mlx5dr.h b/drivers/net/mlx5/hws/mlx5dr.h
index f3367297c6..e21dcd72ae 100644
--- a/drivers/net/mlx5/hws/mlx5dr.h
+++ b/drivers/net/mlx5/hws/mlx5dr.h
@@ -46,6 +46,7 @@ enum mlx5dr_action_type {
 	MLX5DR_ACTION_TYP_ASO_METER,
 	MLX5DR_ACTION_TYP_ASO_CT,
 	MLX5DR_ACTION_TYP_INSERT_HEADER,
+	MLX5DR_ACTION_TYP_REMOVE_HEADER,
 	MLX5DR_ACTION_TYP_DEST_ROOT,
 	MLX5DR_ACTION_TYP_DEST_ARRAY,
 	MLX5DR_ACTION_TYP_MAX,
@@ -184,6 +185,29 @@ struct mlx5dr_action_insert_header {
 	bool encap;
 };
 
+enum mlx5dr_action_remove_header_type {
+	MLX5DR_ACTION_REMOVE_HEADER_TYPE_BY_OFFSET,
+	MLX5DR_ACTION_REMOVE_HEADER_TYPE_BY_HEADER,
+};
+
+struct mlx5dr_action_remove_header_attr {
+	enum mlx5dr_action_remove_header_type type;
+	union {
+		struct {
+			/* PRM start anchor from which header will be removed */
+			uint8_t start_anchor;
+			/* PRM end anchor till which header will be removed */
+			uint8_t end_anchor;
+			bool decap;
+		} by_anchor;
+		struct {
+			/* PRM start anchor from which header will be removed */
+			uint8_t start_anchor;
+			uint8_t size;
+		} by_offset;
+	};
+};
+
 struct mlx5dr_action_mh_pattern {
 	/* Byte size of modify actions provided by "data" */
 	size_t sz;
@@ -727,6 +751,22 @@ mlx5dr_action_create_insert_header(struct mlx5dr_context *ctx,
 				   uint32_t log_bulk_size,
 				   uint32_t flags);
 
+/* Create remove header action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] attr
+ *	attributes: specifies the remove header type, PRM start anchor and
+ *	the PRM end anchor or the PRM start anchor and remove size in bytes.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+struct mlx5dr_action *
+mlx5dr_action_create_remove_header(struct mlx5dr_context *ctx,
+				   struct mlx5dr_action_remove_header_attr *attr,
+				   uint32_t flags);
+
 /* Destroy direct rule action.
  *
  * @param[in] action
diff --git a/drivers/net/mlx5/hws/mlx5dr_action.c b/drivers/net/mlx5/hws/mlx5dr_action.c
index 45e23e2d28..f794d6cd78 100644
--- a/drivers/net/mlx5/hws/mlx5dr_action.c
+++ b/drivers/net/mlx5/hws/mlx5dr_action.c
@@ -7,6 +7,8 @@
 #define WIRE_PORT 0xFFFF
 
 #define MLX5DR_ACTION_METER_INIT_COLOR_OFFSET 1
+/* Header removal size limited to 128B (64 words) */
+#define MLX5DR_ACTION_REMOVE_HEADER_MAX_SIZE 128
 
 /* This is the maximum allowed action order for each table type:
  *	 TX: POP_VLAN, CTR, ASO_METER, AS_CT, PUSH_VLAN, MODIFY, ENCAP, Term
@@ -18,6 +20,7 @@
 static const uint32_t action_order_arr[MLX5DR_TABLE_TYPE_MAX][MLX5DR_ACTION_TYP_MAX] = {
 	[MLX5DR_TABLE_TYPE_NIC_RX] = {
 		BIT(MLX5DR_ACTION_TYP_TAG),
+		BIT(MLX5DR_ACTION_TYP_REMOVE_HEADER) |
 		BIT(MLX5DR_ACTION_TYP_REFORMAT_TNL_L2_TO_L2) |
 		BIT(MLX5DR_ACTION_TYP_REFORMAT_TNL_L3_TO_L2),
 		BIT(MLX5DR_ACTION_TYP_POP_VLAN),
@@ -58,6 +61,7 @@ static const uint32_t action_order_arr[MLX5DR_TABLE_TYPE_MAX][MLX5DR_ACTION_TYP_
 		BIT(MLX5DR_ACTION_TYP_LAST),
 	},
 	[MLX5DR_TABLE_TYPE_FDB] = {
+		BIT(MLX5DR_ACTION_TYP_REMOVE_HEADER) |
 		BIT(MLX5DR_ACTION_TYP_REFORMAT_TNL_L2_TO_L2) |
 		BIT(MLX5DR_ACTION_TYP_REFORMAT_TNL_L3_TO_L2),
 		BIT(MLX5DR_ACTION_TYP_POP_VLAN),
@@ -603,6 +607,19 @@ static void mlx5dr_action_fill_stc_attr(struct mlx5dr_action *action,
 		attr->insert_header.insert_offset = MLX5DR_ACTION_HDR_LEN_L2_MACS;
 		attr->insert_header.header_size = MLX5DR_ACTION_HDR_LEN_L2_VLAN;
 		break;
+	case MLX5DR_ACTION_TYP_REMOVE_HEADER:
+		if (action->remove_header.type == MLX5DR_ACTION_REMOVE_HEADER_TYPE_BY_HEADER) {
+			attr->action_type = MLX5_IFC_STC_ACTION_TYPE_HEADER_REMOVE;
+			attr->remove_header.decap = action->remove_header.decap;
+			attr->remove_header.start_anchor = action->remove_header.start_anchor;
+			attr->remove_header.end_anchor = action->remove_header.end_anchor;
+		} else {
+			attr->action_type = MLX5_IFC_STC_ACTION_TYPE_REMOVE_WORDS;
+			attr->remove_words.start_anchor = action->remove_header.start_anchor;
+			attr->remove_words.num_of_words = action->remove_header.num_of_words;
+		}
+		attr->action_offset = MLX5DR_ACTION_OFFSET_DW5;
+		break;
 	default:
 		DR_LOG(ERR, "Invalid action type %d", action->type);
 		assert(false);
@@ -2023,6 +2040,64 @@ mlx5dr_action_create_insert_header(struct mlx5dr_context *ctx,
 	return NULL;
 }
 
+struct mlx5dr_action *
+mlx5dr_action_create_remove_header(struct mlx5dr_context *ctx,
+				   struct mlx5dr_action_remove_header_attr *attr,
+				   uint32_t flags)
+{
+	struct mlx5dr_action *action;
+
+	if (mlx5dr_action_is_root_flags(flags)) {
+		DR_LOG(ERR, "Remove header action not supported over root");
+		rte_errno = ENOTSUP;
+		return NULL;
+	}
+
+	action = mlx5dr_action_create_generic(ctx, flags, MLX5DR_ACTION_TYP_REMOVE_HEADER);
+	if (!action)
+		return NULL;
+
+	switch (attr->type) {
+	case MLX5DR_ACTION_REMOVE_HEADER_TYPE_BY_HEADER:
+		action->remove_header.type = MLX5DR_ACTION_REMOVE_HEADER_TYPE_BY_HEADER;
+		action->remove_header.start_anchor = attr->by_anchor.start_anchor;
+		action->remove_header.end_anchor = attr->by_anchor.end_anchor;
+		action->remove_header.decap = attr->by_anchor.decap;
+		break;
+	case MLX5DR_ACTION_REMOVE_HEADER_TYPE_BY_OFFSET:
+		if (attr->by_offset.size % W_SIZE != 0) {
+			DR_LOG(ERR, "Invalid size, HW supports header remove in WORD granularity");
+			rte_errno = EINVAL;
+			goto free_action;
+		}
+
+		if (attr->by_offset.size > MLX5DR_ACTION_REMOVE_HEADER_MAX_SIZE) {
+			DR_LOG(ERR, "Header removal size limited to %u bytes",
+			       MLX5DR_ACTION_REMOVE_HEADER_MAX_SIZE);
+			rte_errno = EINVAL;
+			goto free_action;
+		}
+
+		action->remove_header.type = MLX5DR_ACTION_REMOVE_HEADER_TYPE_BY_OFFSET;
+		action->remove_header.start_anchor = attr->by_offset.start_anchor;
+		action->remove_header.num_of_words = attr->by_offset.size / W_SIZE;
+		break;
+	default:
+		DR_LOG(ERR, "Unsupported remove header type %u", attr->type);
+		rte_errno = ENOTSUP;
+		goto free_action;
+	}
+
+	if (mlx5dr_action_create_stcs(action, NULL))
+		goto free_action;
+
+	return action;
+
+free_action:
+	simple_free(action);
+	return NULL;
+}
+
 static void mlx5dr_action_destroy_hws(struct mlx5dr_action *action)
 {
 	struct mlx5dr_devx_obj *obj = NULL;
@@ -2043,6 +2118,7 @@ static void mlx5dr_action_destroy_hws(struct mlx5dr_action *action)
 	case MLX5DR_ACTION_TYP_ASO_METER:
 	case MLX5DR_ACTION_TYP_ASO_CT:
 	case MLX5DR_ACTION_TYP_PUSH_VLAN:
+	case MLX5DR_ACTION_TYP_REMOVE_HEADER:
 		mlx5dr_action_destroy_stcs(action);
 		break;
 	case MLX5DR_ACTION_TYP_DEST_ROOT:
@@ -2620,6 +2696,7 @@ int mlx5dr_action_template_process(struct mlx5dr_action_template *at)
 			setter->idx_double = i;
 			break;
 
+		case MLX5DR_ACTION_TYP_REMOVE_HEADER:
 		case MLX5DR_ACTION_TYP_REFORMAT_TNL_L2_TO_L2:
 			/* Single remove header to header */
 			setter = mlx5dr_action_setter_find_first(last_setter, ASF_SINGLE1 | ASF_MODIFY);
diff --git a/drivers/net/mlx5/hws/mlx5dr_action.h b/drivers/net/mlx5/hws/mlx5dr_action.h
index 593a7f3817..33a674906e 100644
--- a/drivers/net/mlx5/hws/mlx5dr_action.h
+++ b/drivers/net/mlx5/hws/mlx5dr_action.h
@@ -159,6 +159,13 @@ struct mlx5dr_action {
 					size_t num_dest;
 					struct mlx5dr_cmd_set_fte_dest *dest_list;
 				} dest_array;
+				struct {
+					uint8_t type;
+					uint8_t start_anchor;
+					uint8_t end_anchor;
+					uint8_t num_of_words;
+					bool decap;
+				} remove_header;
 			};
 		};
 
diff --git a/drivers/net/mlx5/hws/mlx5dr_debug.c b/drivers/net/mlx5/hws/mlx5dr_debug.c
index a04dfbb97a..6607daaa63 100644
--- a/drivers/net/mlx5/hws/mlx5dr_debug.c
+++ b/drivers/net/mlx5/hws/mlx5dr_debug.c
@@ -25,6 +25,7 @@ const char *mlx5dr_debug_action_type_str[] = {
 	[MLX5DR_ACTION_TYP_DEST_ROOT] = "DEST_ROOT",
 	[MLX5DR_ACTION_TYP_DEST_ARRAY] = "DEST_ARRAY",
 	[MLX5DR_ACTION_TYP_INSERT_HEADER] = "INSERT_HEADER",
+	[MLX5DR_ACTION_TYP_REMOVE_HEADER] = "REMOVE_HEADER",
 };
 
 static_assert(ARRAY_SIZE(mlx5dr_debug_action_type_str) == MLX5DR_ACTION_TYP_MAX,
-- 
2.27.0


  parent reply	other threads:[~2023-11-01  4:45 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-17  9:25 [PATCH v1 0/8] add IPv6 extension push remove Rongwei Liu
2023-04-17  9:25 ` [PATCH v1 1/8] ethdev: add IPv6 extension push remove action Rongwei Liu
2023-05-24  6:55   ` Ori Kam
2023-05-24  7:39     ` [PATCH v1 0/2] add IPv6 extension push remove Rongwei Liu
2023-05-24  7:39       ` [PATCH v1 1/2] ethdev: add IPv6 extension push remove action Rongwei Liu
2023-05-24 10:30         ` Ori Kam
2023-05-24  7:39       ` [PATCH v1 2/2] app/testpmd: add IPv6 extension push remove cli Rongwei Liu
2023-06-02 14:39       ` [PATCH v1 0/2] add IPv6 extension push remove Ferruh Yigit
2023-07-10  2:32         ` Rongwei Liu
2023-07-10  8:55           ` Ferruh Yigit
2023-07-10 14:41             ` Stephen Hemminger
2023-07-11  6:16               ` Thomas Monjalon
2023-09-19  8:12                 ` [PATCH v3] net/mlx5: add test for live migration Rongwei Liu
2023-10-16  8:19                   ` Thomas Monjalon
2023-10-16  8:25                     ` Rongwei Liu
2023-10-16  9:26                       ` Rongwei Liu
2023-10-16  9:26                       ` Thomas Monjalon
2023-10-16  9:29                         ` Rongwei Liu
2023-10-25  9:07                           ` Rongwei Liu
2023-10-16  9:22                     ` [PATCH v4] " Rongwei Liu
2023-10-25  9:36                       ` [PATCH v5] " Rongwei Liu
2023-10-25  9:41                         ` Thomas Monjalon
2023-10-25  9:45                           ` [PATCH v6] " Rongwei Liu
2023-10-25  9:48                           ` [PATCH v5] " Rongwei Liu
2023-10-25  9:50                           ` [PATCH v7] " Rongwei Liu
2023-10-25 13:10                             ` Thomas Monjalon
2023-10-26  8:15                             ` Raslan Darawsheh
2023-04-17  9:25 ` [PATCH v1 2/8] app/testpmd: add IPv6 extension push remove cli Rongwei Liu
2023-05-24  7:06   ` Ori Kam
2023-04-17  9:25 ` [PATCH v1 3/8] net/mlx5/hws: add no reparse support Rongwei Liu
2023-04-17  9:25 ` [PATCH v1 4/8] net/mlx5: sample the srv6 last segment Rongwei Liu
2023-10-31  9:42   ` [PATCH v2 0/6] support IPv6 extension push remove Rongwei Liu
2023-10-31  9:42     ` [PATCH v2 1/6] net/mlx5: sample the srv6 last segment Rongwei Liu
2023-10-31  9:42     ` [PATCH v2 2/6] net/mlx5/hws: fix potential wrong errno value Rongwei Liu
2023-10-31  9:42     ` [PATCH v2 3/6] net/mlx5/hws: add IPv6 routing extension push remove actions Rongwei Liu
2023-10-31  9:42     ` [PATCH v2 4/6] net/mlx5/hws: add setter for IPv6 routing push remove Rongwei Liu
2023-10-31  9:42     ` [PATCH v2 5/6] net/mlx5: implement " Rongwei Liu
2023-10-31  9:42     ` [PATCH v2 6/6] net/mlx5/hws: add stc reparse support for srv6 push pop Rongwei Liu
2023-10-31 10:51     ` [PATCH v3 0/6] support IPv6 extension push remove Rongwei Liu
2023-10-31 10:51       ` [PATCH v3 1/6] net/mlx5: sample the srv6 last segment Rongwei Liu
2023-10-31 10:51       ` [PATCH v3 2/6] net/mlx5/hws: fix potential wrong errno value Rongwei Liu
2023-10-31 10:51       ` [PATCH v3 3/6] net/mlx5/hws: add IPv6 routing extension push remove actions Rongwei Liu
2023-10-31 10:51       ` [PATCH v3 4/6] net/mlx5/hws: add setter for IPv6 routing push remove Rongwei Liu
2023-10-31 10:51       ` [PATCH v3 5/6] net/mlx5: implement " Rongwei Liu
2023-10-31 10:51       ` [PATCH v3 6/6] net/mlx5/hws: add stc reparse support for srv6 push pop Rongwei Liu
2023-11-01  4:44       ` [PATCH v4 00/13] support IPv6 push remove action Rongwei Liu
2023-11-01  4:44         ` [PATCH v4 01/13] net/mlx5/hws: support insert header action Rongwei Liu
2023-11-01  4:44         ` Rongwei Liu [this message]
2023-11-01  4:44         ` [PATCH v4 03/13] net/mlx5/hws: allow jump to TIR over FDB Rongwei Liu
2023-11-01  4:44         ` [PATCH v4 04/13] net/mlx5/hws: support dynamic re-parse Rongwei Liu
2023-11-01  4:44         ` [PATCH v4 05/13] net/mlx5/hws: dynamic re-parse for modify header Rongwei Liu
2023-11-01  4:44         ` [PATCH v4 06/13] net/mlx5/hws: fix incorrect re-parse on complex rules Rongwei Liu
2023-11-01  4:44         ` [PATCH v4 07/13] net/mlx5: sample the srv6 last segment Rongwei Liu
2023-11-01  4:44         ` [PATCH v4 08/13] net/mlx5/hws: fix potential wrong rte_errno value Rongwei Liu
2023-11-01  4:44         ` [PATCH v4 09/13] net/mlx5/hws: add IPv6 routing extension push remove actions Rongwei Liu
2023-11-01  4:44         ` [PATCH v4 10/13] net/mlx5/hws: add setter for IPv6 routing push remove Rongwei Liu
2023-11-01  4:44         ` [PATCH v4 11/13] net/mlx5: implement " Rongwei Liu
2023-11-01  4:44         ` [PATCH v4 12/13] net/mlx5/hws: fix srv6 push compilation failure Rongwei Liu
2023-11-01  4:44         ` [PATCH v4 13/13] net/mlx5/hws: add stc reparse support for srv6 push pop Rongwei Liu
2023-11-02 13:44         ` [PATCH v4 00/13] support IPv6 push remove action Raslan Darawsheh
2023-04-17  9:25 ` [PATCH v1 5/8] net/mlx5: generate srv6 modify header resource Rongwei Liu
2023-04-17  9:25 ` [PATCH v1 6/8] net/mlx5/hws: add IPv6 routing extension push pop actions Rongwei Liu
2023-04-17  9:25 ` [PATCH v1 7/8] net/mlx5/hws: add setter for IPv6 routing push pop Rongwei Liu
2023-04-17  9:25 ` [PATCH v1 8/8] net/mlx5: implement " Rongwei Liu

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