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GET /api/patches/133597/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 133597,
    "url": "http://patchwork.dpdk.org/api/patches/133597/?format=api",
    "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/20231029163202.216450-24-getelson@nvidia.com/",
    "project": {
        "id": 1,
        "url": "http://patchwork.dpdk.org/api/projects/1/?format=api",
        "name": "DPDK",
        "link_name": "dpdk",
        "list_id": "dev.dpdk.org",
        "list_email": "dev@dpdk.org",
        "web_url": "http://core.dpdk.org",
        "scm_url": "git://dpdk.org/dpdk",
        "webscm_url": "http://git.dpdk.org/dpdk",
        "list_archive_url": "https://inbox.dpdk.org/dev",
        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
        "commit_url_format": ""
    },
    "msgid": "<20231029163202.216450-24-getelson@nvidia.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20231029163202.216450-24-getelson@nvidia.com",
    "date": "2023-10-29T16:31:56",
    "name": "[24/30] net/mlx5/hws: dynamic re-parse for modify header",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "859d9cf6f81a61c8487ac317c3c71d7151832f29",
    "submitter": {
        "id": 1882,
        "url": "http://patchwork.dpdk.org/api/people/1882/?format=api",
        "name": "Gregory Etelson",
        "email": "getelson@nvidia.com"
    },
    "delegate": {
        "id": 3268,
        "url": "http://patchwork.dpdk.org/api/users/3268/?format=api",
        "username": "rasland",
        "first_name": "Raslan",
        "last_name": "Darawsheh",
        "email": "rasland@nvidia.com"
    },
    "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/20231029163202.216450-24-getelson@nvidia.com/mbox/",
    "series": [
        {
            "id": 30049,
            "url": "http://patchwork.dpdk.org/api/series/30049/?format=api",
            "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=30049",
            "date": "2023-10-29T16:31:33",
            "name": "[01/30] net/mlx5/hws: Definer, add mlx5dr context to definer_conv_data",
            "version": 1,
            "mbox": "http://patchwork.dpdk.org/series/30049/mbox/"
        }
    ],
    "comments": "http://patchwork.dpdk.org/api/patches/133597/comments/",
    "check": "success",
    "checks": "http://patchwork.dpdk.org/api/patches/133597/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "From": "Gregory Etelson <getelson@nvidia.com>",
        "To": "<dev@dpdk.org>",
        "CC": "<getelson@nvidia.com>, <mkashani@nvidia.com>, <rasland@nvidia.com>, \"Alex\n Vesker\" <valex@nvidia.com>, Erez Shitrit <erezsh@nvidia.com>, Matan Azrad\n <matan@nvidia.com>, Viacheslav Ovsiienko <viacheslavo@nvidia.com>, Ori Kam\n <orika@nvidia.com>, Suanming Mou <suanmingm@nvidia.com>",
        "Subject": "[PATCH 24/30] net/mlx5/hws: dynamic re-parse for modify header",
        "Date": "Sun, 29 Oct 2023 18:31:56 +0200",
        "Message-ID": "<20231029163202.216450-24-getelson@nvidia.com>",
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    },
    "content": "From: Alex Vesker <valex@nvidia.com>\n\nWith dynamic re-parse we would always require re-parse but\nthis is not always necessary. Re-parse is only needed when\nthe packet structure is changed. This support will allow\ndynamically deciding based on the action pattern if re-parse\nis required or no.\n\nSigned-off-by: Alex Vesker <valex@nvidia.com>\nReviewed-by: Erez Shitrit <erezsh@nvidia.com>\nAcked-by: Matan Azrad <matan@nvidia.com>\n---\n drivers/net/mlx5/hws/mlx5dr_action.c  | 15 +++++++---\n drivers/net/mlx5/hws/mlx5dr_action.h  |  1 +\n drivers/net/mlx5/hws/mlx5dr_pat_arg.c | 41 +++++++++++++++++++++++++--\n drivers/net/mlx5/hws/mlx5dr_pat_arg.h |  2 ++\n 4 files changed, 53 insertions(+), 6 deletions(-)",
    "diff": "diff --git a/drivers/net/mlx5/hws/mlx5dr_action.c b/drivers/net/mlx5/hws/mlx5dr_action.c\nindex bdccfb9cf3..59be8ae2c5 100644\n--- a/drivers/net/mlx5/hws/mlx5dr_action.c\n+++ b/drivers/net/mlx5/hws/mlx5dr_action.c\n@@ -635,7 +635,9 @@ static void mlx5dr_action_fill_stc_attr(struct mlx5dr_action *action,\n \tcase MLX5DR_ACTION_TYP_REFORMAT_TNL_L3_TO_L2:\n \tcase MLX5DR_ACTION_TYP_MODIFY_HDR:\n \t\tattr->action_offset = MLX5DR_ACTION_OFFSET_DW6;\n-\t\tattr->reparse_mode = MLX5_IFC_STC_REPARSE_ALWAYS;\n+\t\tif (action->modify_header.require_reparse)\n+\t\t\tattr->reparse_mode = MLX5_IFC_STC_REPARSE_ALWAYS;\n+\n \t\tif (action->modify_header.num_of_actions == 1) {\n \t\t\tattr->modify_action.data = action->modify_header.single_action;\n \t\t\tattr->action_type = mlx5dr_action_get_mh_stc_type(attr->modify_action.data);\n@@ -1614,6 +1616,8 @@ mlx5dr_action_handle_tunnel_l3_to_l2(struct mlx5dr_action *action,\n \t\taction[i].modify_header.num_of_actions = num_of_actions;\n \t\taction[i].modify_header.arg_obj = arg_obj;\n \t\taction[i].modify_header.pat_obj = pat_obj;\n+\t\taction[i].modify_header.require_reparse =\n+\t\t\tmlx5dr_pat_require_reparse((__be64 *)mh_data, num_of_actions);\n \n \t\tret = mlx5dr_action_create_stcs(&action[i], NULL);\n \t\tif (ret) {\n@@ -1760,7 +1764,7 @@ mlx5dr_action_create_modify_header_hws(struct mlx5dr_action *action,\n {\n \tstruct mlx5dr_devx_obj *pat_obj, *arg_obj = NULL;\n \tstruct mlx5dr_context *ctx = action->ctx;\n-\tuint16_t max_mh_actions = 0;\n+\tuint16_t num_actions, max_mh_actions = 0;\n \tint i, ret;\n \n \t/* Calculate maximum number of mh actions for shared arg allocation */\n@@ -1786,11 +1790,14 @@ mlx5dr_action_create_modify_header_hws(struct mlx5dr_action *action,\n \t\t\tgoto free_stc_and_pat;\n \t\t}\n \n+\t\tnum_actions = pattern[i].sz / MLX5DR_MODIFY_ACTION_SIZE;\n \t\taction[i].modify_header.num_of_patterns = num_of_patterns;\n \t\taction[i].modify_header.max_num_of_actions = max_mh_actions;\n-\t\taction[i].modify_header.num_of_actions = pattern[i].sz / MLX5DR_MODIFY_ACTION_SIZE;\n+\t\taction[i].modify_header.num_of_actions = num_actions;\n+\t\taction[i].modify_header.require_reparse =\n+\t\t\tmlx5dr_pat_require_reparse(pattern[i].data, num_actions);\n \n-\t\tif (action[i].modify_header.num_of_actions == 1) {\n+\t\tif (num_actions == 1) {\n \t\t\tpat_obj = NULL;\n \t\t\t/* Optimize single modify action to be used inline */\n \t\t\taction[i].modify_header.single_action = pattern[i].data[0];\ndiff --git a/drivers/net/mlx5/hws/mlx5dr_action.h b/drivers/net/mlx5/hws/mlx5dr_action.h\nindex 328de65a1e..e56f5b59c7 100644\n--- a/drivers/net/mlx5/hws/mlx5dr_action.h\n+++ b/drivers/net/mlx5/hws/mlx5dr_action.h\n@@ -132,6 +132,7 @@ struct mlx5dr_action {\n \t\t\t\t\tuint8_t single_action_type;\n \t\t\t\t\tuint8_t num_of_actions;\n \t\t\t\t\tuint8_t max_num_of_actions;\n+\t\t\t\t\tuint8_t require_reparse;\n \t\t\t\t} modify_header;\n \t\t\t\tstruct {\n \t\t\t\t\tstruct mlx5dr_devx_obj *arg_obj;\ndiff --git a/drivers/net/mlx5/hws/mlx5dr_pat_arg.c b/drivers/net/mlx5/hws/mlx5dr_pat_arg.c\nindex 349d77f296..a949844d24 100644\n--- a/drivers/net/mlx5/hws/mlx5dr_pat_arg.c\n+++ b/drivers/net/mlx5/hws/mlx5dr_pat_arg.c\n@@ -37,6 +37,43 @@ uint32_t mlx5dr_arg_get_arg_size(uint16_t num_of_actions)\n \treturn BIT(mlx5dr_arg_get_arg_log_size(num_of_actions));\n }\n \n+bool mlx5dr_pat_require_reparse(__be64 *actions, uint16_t num_of_actions)\n+{\n+\tuint16_t i, field;\n+\tuint8_t action_id;\n+\n+\tfor (i = 0; i < num_of_actions; i++) {\n+\t\taction_id = MLX5_GET(set_action_in, &actions[i], action_type);\n+\n+\t\tswitch (action_id) {\n+\t\tcase MLX5_MODIFICATION_TYPE_NOP:\n+\t\t\tfield = MLX5_MODI_OUT_NONE;\n+\t\t\tbreak;\n+\n+\t\tcase MLX5_MODIFICATION_TYPE_SET:\n+\t\tcase MLX5_MODIFICATION_TYPE_ADD:\n+\t\t\tfield = MLX5_GET(set_action_in, &actions[i], field);\n+\t\t\tbreak;\n+\n+\t\tcase MLX5_MODIFICATION_TYPE_COPY:\n+\t\tcase MLX5_MODIFICATION_TYPE_ADD_FIELD:\n+\t\t\tfield = MLX5_GET(copy_action_in, &actions[i], dst_field);\n+\t\t\tbreak;\n+\n+\t\tdefault:\n+\t\t\t/* Insert/Remove/Unknown actions require reparse */\n+\t\t\treturn true;\n+\t\t}\n+\n+\t\t/* Below fields can change packet structure require a reparse */\n+\t\tif (field == MLX5_MODI_OUT_ETHERTYPE ||\n+\t\t    field == MLX5_MODI_OUT_IPV6_NEXT_HDR)\n+\t\t\treturn true;\n+\t}\n+\n+\treturn false;\n+}\n+\n /* Cache and cache element handling */\n int mlx5dr_pat_init_pattern_cache(struct mlx5dr_pattern_cache **cache)\n {\n@@ -228,8 +265,8 @@ mlx5dr_pat_get_pattern(struct mlx5dr_context *ctx,\n \t}\n \n \tpat_obj = mlx5dr_cmd_header_modify_pattern_create(ctx->ibv_ctx,\n-\t\t\t\t\t\t\t      pattern_sz,\n-\t\t\t\t\t\t\t      (uint8_t *)pattern);\n+\t\t\t\t\t\t\t  pattern_sz,\n+\t\t\t\t\t\t\t  (uint8_t *)pattern);\n \tif (!pat_obj) {\n \t\tDR_LOG(ERR, \"Failed to create pattern FW object\");\n \t\tgoto out_unlock;\ndiff --git a/drivers/net/mlx5/hws/mlx5dr_pat_arg.h b/drivers/net/mlx5/hws/mlx5dr_pat_arg.h\nindex 2a38891c4d..bbe313102f 100644\n--- a/drivers/net/mlx5/hws/mlx5dr_pat_arg.h\n+++ b/drivers/net/mlx5/hws/mlx5dr_pat_arg.h\n@@ -79,6 +79,8 @@ void mlx5dr_pat_put_pattern(struct mlx5dr_context *ctx,\n bool mlx5dr_arg_is_valid_arg_request_size(struct mlx5dr_context *ctx,\n \t\t\t\t\t  uint32_t arg_size);\n \n+bool mlx5dr_pat_require_reparse(__be64 *actions, uint16_t num_of_actions);\n+\n void mlx5dr_arg_write(struct mlx5dr_send_engine *queue,\n \t\t      void *comp_data,\n \t\t      uint32_t arg_idx,\n",
    "prefixes": [
        "24/30"
    ]
}