From nobody Wed Sep 16 14:13:23 2026 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hlLTH6Dw9z6rXRt for ; Wed, 16 Sep 2026 14:13:23 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hlLTH3nPsz3N7n for ; Wed, 16 Sep 2026 14:13:23 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1789568003; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=eTrDKkoUHp6q2fmq5L4agIJAUv7fZxvll0n1sbyJL4k=; b=ZP4kL7LfYs5O9VAbR5+WC6bIXfYDpGjUdVwOAnRxRFSIty54mTdsroygNCtPkyBi2Go1Yt Q0UFWhcKLJAmllrxnCr1pYIRIgUpKfPplMC9MPocrynAe3Q0ZFIvJ2JFpFYUya2KBJxTjK xXLEl6nUMHXLZCB6NY1lXkFX3dFDcd4FHUsfZsMWsra3Jch5C3VdhT4cQsigu5i2EmFSiW 7bFJQfuWurh/Nbe/HJd6BO4J5iBShblY31F4g/J1Yi2nVKDWB+I4xLs27KNh+YQDkmGEBF /Q8wAHkQ2Jn0MmHXagy/NI+wgEdc5r44SsLNjq182emgzx4DpZ/SFM/+UeSiWw== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1789568003; b=JtfclR3G9ROgzZzfRTlYQdOVMLFiE5yg9n72Svn0k6sffMfrObDjpZv0XQZImll8qjvDlZ 3ehOozdCmd9Pq06L2U33IfOh1J+T+s980iYp6vLx3vAEXC67b6l/t5T89v6v1cgFrwy1U4 HfdcoACqHuRKLAB4rkxFc1OK3D49ZgBafF0t6Hsx3V2gX8jLji5eflnAp+USyOqCSpSZcN Rt2bkrAmXHhjAUCyjUuYeOctrRl0ZqiEimbewHrmS9rfe0xk1MzyQjM0zlHLI2NwGGpt8+ GJAq7hO7QPa5xbZLaMGN7YVV1wc1Kc0YOdI1BvtBJT1XlXRzPci3yVb4iUzpEA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1789568003; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=eTrDKkoUHp6q2fmq5L4agIJAUv7fZxvll0n1sbyJL4k=; b=ePwHCdbxuFTK6rbm1dCB8e49X7JBaTAKEUF00IkVic/lUtrnTQq8TdOfPWTakhctzuHEyy nlUrN0SEWDFvqJK7RZF/gzVRRasYX3/dzdkrX0sGVSdSJGp4/v4aZzTBgFj8MTy6DkfRTs iBFApfJ+WDvxF0BA5oPgVKmGBVPrbzvJtG887KeXq7SZor4v9zYjIykaP6hDe1c81yOaax bBCi0+Wpp4zr/w2bQvxZoAHwH+o5vLKQbejuksFJTv8bolzH0Nm0ZBJk3OLBs8QaN9b8aE tao87WrN0rVdffT75K1dUmaPNvHheEiL0gQTTVtFpHNqTTOzFelSiQ665eg5Yg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4hlLTH2rVvzqX0 for ; Wed, 16 Sep 2026 14:13:23 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 37286 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Wed, 16 Sep 2026 14:13:23 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Cc: Vag Singh From: Konstantin Belousov Subject: git: 35763e9689a1 - main - libmlx5: Report Multi-Packet RQ capabilities through mlx5 direct verbs List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 35763e9689a19d0febe7a4b13b1e5b15c62a5b02 Auto-Submitted: auto-generated Date: Wed, 16 Sep 2026 14:13:23 +0000 Message-Id: <6aaaa403.37286.368082c7@gitrepo.freebsd.org> The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=35763e9689a19d0febe7a4b13b1e5b15c62a5b02 commit 35763e9689a19d0febe7a4b13b1e5b15c62a5b02 Author: Vag Singh AuthorDate: 2025-08-14 06:54:32 +0000 Commit: Konstantin Belousov CommitDate: 2026-09-16 14:12:09 +0000 libmlx5: Report Multi-Packet RQ capabilities through mlx5 direct verbs [PATCH 26/31] FreeBSD OFED support for DPDK MLX5 PMD A Multi-Packet RQ is a receive queue where multiple packets are written to the same WQE. Each message starts in the beginning of a stride. The total size of the scatter elements of each WQE is determined upon RQ creation and all the posted WQEs should meet the determined size. A Multi-Packet RQ reduces the number of needed post-recv operations thus increasing performance. It reduces memory footprint by allowing each packet to consume a different number of strides instead of the whole WR. Differential revision: https://reviews.freebsd.org/D32201 MFC after: 1 month --- contrib/ofed/libmlx5/mlx5-abi.h | 6 ++++++ contrib/ofed/libmlx5/mlx5.c | 6 ++++++ contrib/ofed/libmlx5/mlx5.h | 1 + contrib/ofed/libmlx5/mlx5dv.h | 12 +++++++++++- contrib/ofed/libmlx5/mlx5dv_query_device.3 | 31 ++++++++++++++++++++++++++++++ contrib/ofed/libmlx5/verbs.c | 1 + 6 files changed, 56 insertions(+), 1 deletion(-) diff --git a/contrib/ofed/libmlx5/mlx5-abi.h b/contrib/ofed/libmlx5/mlx5-abi.h index d1e8b9d88ae7..817ae252382d 100644 --- a/contrib/ofed/libmlx5/mlx5-abi.h +++ b/contrib/ofed/libmlx5/mlx5-abi.h @@ -279,6 +279,11 @@ enum mlx5_mpw_caps { MLX5_SUPPORT_EMPW = 1 << 2, }; +struct mlx5_striding_rq_caps { + struct mlx5dv_striding_rq_caps caps; + __u32 reserved; +}; + struct mlx5_query_device_ex_resp { struct ibv_query_device_resp_ex ibv_resp; __u32 comp_mask; @@ -290,6 +295,7 @@ struct mlx5_query_device_ex_resp { __u32 support_multi_pkt_send_wqe; __u32 reserved; struct mlx5dv_sw_parsing_caps sw_parsing_caps; + struct mlx5_striding_rq_caps striding_rq_caps; }; #endif /* MLX5_ABI_H */ diff --git a/contrib/ofed/libmlx5/mlx5.c b/contrib/ofed/libmlx5/mlx5.c index 56560c9d59c0..c2daf25287f8 100644 --- a/contrib/ofed/libmlx5/mlx5.c +++ b/contrib/ofed/libmlx5/mlx5.c @@ -666,6 +666,12 @@ int mlx5dv_query_device(struct ibv_context *ctx_in, comp_mask_out |= MLX5DV_CONTEXT_MASK_SWP; } + if (attrs_out->comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) { + attrs_out->striding_rq_caps = mctx->striding_rq_caps; + comp_mask_out |= MLX5DV_CONTEXT_MASK_STRIDING_RQ; + } + + attrs_out->comp_mask = comp_mask_out; return 0; diff --git a/contrib/ofed/libmlx5/mlx5.h b/contrib/ofed/libmlx5/mlx5.h index d8d5b48fc618..e65847b37e31 100644 --- a/contrib/ofed/libmlx5/mlx5.h +++ b/contrib/ofed/libmlx5/mlx5.h @@ -273,6 +273,7 @@ struct mlx5_context { struct mlx5dv_cqe_comp_caps cqe_comp_caps; struct mlx5dv_ctx_allocators extern_alloc; struct mlx5dv_sw_parsing_caps sw_parsing_caps; + struct mlx5dv_striding_rq_caps striding_rq_caps; }; struct mlx5_bitmap { diff --git a/contrib/ofed/libmlx5/mlx5dv.h b/contrib/ofed/libmlx5/mlx5dv.h index 53cf5416c071..7dc7424b7f90 100644 --- a/contrib/ofed/libmlx5/mlx5dv.h +++ b/contrib/ofed/libmlx5/mlx5dv.h @@ -59,7 +59,8 @@ enum { enum mlx5dv_context_comp_mask { MLX5DV_CONTEXT_MASK_CQE_COMPRESION = 1 << 0, MLX5DV_CONTEXT_MASK_SWP = 1 << 1, - MLX5DV_CONTEXT_MASK_RESERVED = 1 << 2, + MLX5DV_CONTEXT_MASK_STRIDING_RQ = 1 << 2, + MLX5DV_CONTEXT_MASK_RESERVED = 1 << 3, }; struct mlx5dv_cqe_comp_caps { @@ -72,6 +73,14 @@ struct mlx5dv_sw_parsing_caps { uint32_t supported_qpts; }; +struct mlx5dv_striding_rq_caps { + uint32_t min_single_stride_log_num_of_bytes; + uint32_t max_single_stride_log_num_of_bytes; + uint32_t min_single_wqe_log_num_of_strides; + uint32_t max_single_wqe_log_num_of_strides; + uint32_t supported_qpts; +}; + /* * Direct verbs device-specific attributes */ @@ -81,6 +90,7 @@ struct mlx5dv_context { uint64_t comp_mask; struct mlx5dv_cqe_comp_caps cqe_comp_caps; struct mlx5dv_sw_parsing_caps sw_parsing_caps; + struct mlx5dv_striding_rq_caps striding_rq_caps; }; enum mlx5dv_context_flags { diff --git a/contrib/ofed/libmlx5/mlx5dv_query_device.3 b/contrib/ofed/libmlx5/mlx5dv_query_device.3 index b29085545253..2e6d45b32c27 100644 --- a/contrib/ofed/libmlx5/mlx5dv_query_device.3 +++ b/contrib/ofed/libmlx5/mlx5dv_query_device.3 @@ -21,6 +21,25 @@ of the internal hardware structures that mlx5dv.h represents. Additions of new f structures are handled by comp_mask field. .PP .nf +struct mlx5dv_sw_parsing_caps { +.in +8 +uint32_t sw_parsing_offloads; /* Use enum mlx5dv_sw_parsing_offloads */ +uint32_t supported_qpts; +.in -8 +}; +.PP +.nf +struct mlx5dv_striding_rq_caps { +.in +8 +uint32_t min_single_stride_log_num_of_bytes; /* min log size of each stride */ +uint32_t max_single_stride_log_num_of_bytes; /* max log size of each stride */ +uint32_t min_single_wqe_log_num_of_strides; /* min log number of strides per WQE */ +uint32_t max_single_wqe_log_num_of_strides; /* max log number of strides per WQE */ +uint32_t supported_qpts; +.in -8 +}; +.PP +.nf struct mlx5dv_context { .in +8 uint8_t version; @@ -49,6 +68,18 @@ enum mlx5dv_context_flags { MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW = (1 << 3), /* Enhanced multi packet WQE is supported or not */ .in -8 }; + +.PP +.nf +enum mlx5dv_context_comp_mask { +.in +8 + MLX5DV_CONTEXT_MASK_CQE_COMPRESION = 1 << 0, + MLX5DV_CONTEXT_MASK_SWP = 1 << 1, + MLX5DV_CONTEXT_MASK_STRIDING_RQ = 1 << 2, + MLX5DV_CONTEXT_MASK_RESERVED = 1 << 3, +.in -8 +}; + .fi .SH "RETURN VALUE" 0 on success or the value of errno on failure (which indicates the failure reason). diff --git a/contrib/ofed/libmlx5/verbs.c b/contrib/ofed/libmlx5/verbs.c index f591b177b599..bbc670e7acdd 100644 --- a/contrib/ofed/libmlx5/verbs.c +++ b/contrib/ofed/libmlx5/verbs.c @@ -2122,6 +2122,7 @@ int mlx5_query_device_ex(struct ibv_context *context, mctx->cqe_comp_caps = resp.cqe_comp_caps; mctx->sw_parsing_caps = resp.sw_parsing_caps; + mctx->striding_rq_caps = resp.striding_rq_caps.caps; major = (raw_fw_ver >> 32) & 0xffff; minor = (raw_fw_ver >> 16) & 0xffff;