From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 7D559A04E6; Fri, 30 Oct 2020 18:49:48 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id BAAED6A6F; Fri, 30 Oct 2020 18:45:44 +0100 (CET) Received: from out2-smtp.messagingengine.com (out2-smtp.messagingengine.com [66.111.4.26]) by dpdk.org (Postfix) with ESMTP id D24455953 for ; Fri, 30 Oct 2020 18:45:18 +0100 (CET) Received: from compute2.internal (compute2.nyi.internal [10.202.2.42]) by mailout.nyi.internal (Postfix) with ESMTP id 88CF85C01A3; Fri, 30 Oct 2020 13:45:18 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute2.internal (MEProxy); Fri, 30 Oct 2020 13:45:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monjalon.net; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=eLyw5qV9xwuy0 gAhRVSGsWhtnJcQtq52JbUjAnuadJk=; b=u6p9+K93x0jaR89bD5/qNZXLBrp3x +Ncg1hFIdnBYvoszCRqeThTDSYH0Wh6fqsV8be7duWvsunDcKZUEUFrulo/6ucHt G+V6D7LTvM8OXMaaekrzAxF7IhltGq6K/D15vxbe3oH895l6Lu+EvvSJkkmVwOhf rggEQOPt2NIHZAMrvRaMM2oF+FSP3kkHyV7qt+xSHhVH3K7iLGnxLcDBlJkW78Jx 8pVwSN3aLfx5cyB29Tfxxtr0saeipBC89l1pFPPYqe8fmxACicN7YY6bb58CHuwE RBm+rvWIbrfJoqBqfMCjnEFoUKND96UTpeMCsuFrPzwoXkKw2evEXzfnA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=eLyw5qV9xwuy0gAhRVSGsWhtnJcQtq52JbUjAnuadJk=; b=rLlfip7I RuD5Qol15pE/ps+2ClAqGP8Bt5bbnZHwlxmjNLLPuGN32d/SovHJGDa2HS/y6CRf FsNio84taUGgcyr7YxO6Ud5P2eOL+gv9IRlGWRWn/0MRwzh0ZPkQgWyXboP/zWpv qKKjIg7NjFiBH8HFrqJuiaFllnhSJ9o58jGKhXLOKZyAP82DDHovvdCpCExL2t4G KwGvBVrDJ1SsrPh1Lh1Nb1w1TeCZN8m+xTZKsrPk5tnVYw1ThK5ON5+IL8qIWhdF zVMgHr1mszUxtWL043X+FqtzHPS573D73beA3Qx5fDPZZ0kSsTomQUHp28VFXaVW ygKG/R+xhZVO3A== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrleehgdellecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepvfhhohhmrghs ucfoohhnjhgrlhhonhcuoehthhhomhgrshesmhhonhhjrghlohhnrdhnvghtqeenucggtf frrghtthgvrhhnpedvhefgiedvjeegtdevheefhfetleefgfeivefgffevfeejgedtgfeu tdehtdegveenucfkphepjeejrddufeegrddvtdefrddukeegnecuvehluhhsthgvrhfuih iivgepuddvnecurfgrrhgrmhepmhgrihhlfhhrohhmpehthhhomhgrshesmhhonhhjrghl ohhnrdhnvght X-ME-Proxy: Received: from xps.monjalon.net (184.203.134.77.rev.sfr.net [77.134.203.184]) by mail.messagingengine.com (Postfix) with ESMTPA id 4868A306467D; Fri, 30 Oct 2020 13:45:17 -0400 (EDT) From: Thomas Monjalon To: dev@dpdk.org Cc: ferruh.yigit@intel.com, david.marchand@redhat.com, bruce.richardson@intel.com, olivier.matz@6wind.com, andrew.rybchenko@oktetlabs.ru, akhil.goyal@nxp.com, jerinj@marvell.com, Ray Kinsella , Neil Horman Date: Fri, 30 Oct 2020 18:44:41 +0100 Message-Id: <20201030174441.1076264-16-thomas@monjalon.net> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201030174441.1076264-1-thomas@monjalon.net> References: <20201026052105.1561859-1-thomas@monjalon.net> <20201030174441.1076264-1-thomas@monjalon.net> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v6 15/15] mbuf: remove userdata field X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" As announced in the deprecation note, the field userdata / udata64 is removed to give more space to the dynamic fields. This is how the mbuf layout looks like (pahole-style): word type name byte size 0 void * buf_addr; /* 0 + 8 */ 1 rte_iova_t buf_iova /* 8 + 8 */ /* --- RTE_MARKER64 rearm_data; */ 2 uint16_t data_off; /* 16 + 2 */ uint16_t refcnt; /* 18 + 2 */ uint16_t nb_segs; /* 20 + 2 */ uint16_t port; /* 22 + 2 */ 3 uint64_t ol_flags; /* 24 + 8 */ /* --- RTE_MARKER rx_descriptor_fields1; */ 4 uint32_t union packet_type; /* 32 + 4 */ uint32_t pkt_len; /* 36 + 4 */ 5 uint16_t data_len; /* 40 + 2 */ uint16_t vlan_tci; /* 42 + 2 */ 5.5 uint64_t union hash; /* 44 + 8 */ 6.5 uint16_t vlan_tci_outer; /* 52 + 2 */ uint16_t buf_len; /* 54 + 2 */ 7 uint64_t timestamp; /* 56 + 8 */ /* --- RTE_MARKER cacheline1; */ 8 struct rte_mempool * pool; /* 64 + 8 */ 9 struct rte_mbuf * next; /* 72 + 8 */ 10 uint64_t union tx_offload; /* 80 + 8 */ 11 uint16_t priv_size; /* 88 + 2 */ uint16_t timesync; /* 90 + 2 */ uint32_t seqn; /* 92 + 4 */ 12 struct rte_mbuf_ext_shared_info * shinfo; /* 96 + 8 */ 13 uint64_t dynfield1[3]; /* 104 + 24 */ 16 /* --- END 128 */ Signed-off-by: Thomas Monjalon Acked-by: Olivier Matz --- doc/guides/rel_notes/deprecation.rst | 1 - doc/guides/rel_notes/release_20_11.rst | 3 +++ lib/librte_kni/rte_kni_common.h | 2 +- lib/librte_mbuf/rte_mbuf_core.h | 8 +------- 4 files changed, 5 insertions(+), 9 deletions(-) diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst index 2e082499b8..0f6f1df12a 100644 --- a/doc/guides/rel_notes/deprecation.rst +++ b/doc/guides/rel_notes/deprecation.rst @@ -87,7 +87,6 @@ Deprecation Notices The following static fields will be moved as dynamic: - ``timestamp`` - - ``userdata`` / ``udata64`` - ``seqn`` As a consequence, the layout of the ``struct rte_mbuf`` will be re-arranged, diff --git a/doc/guides/rel_notes/release_20_11.rst b/doc/guides/rel_notes/release_20_11.rst index bae39b2dd0..70cefb6d07 100644 --- a/doc/guides/rel_notes/release_20_11.rst +++ b/doc/guides/rel_notes/release_20_11.rst @@ -442,6 +442,9 @@ API Changes the structures ``rte_mbuf`` and ``rte_mbuf_ext_shared_info``. The field ``refcnt`` is remaining from the old unions. +* mbuf: Removed the unioned fields ``userdata`` and ``udata64`` + from the structure ``rte_mbuf``. It is replaced with dynamic fields. + * pci: Removed the ``rte_kernel_driver`` enum defined in rte_dev.h and replaced with a private enum in the PCI subsystem. diff --git a/lib/librte_kni/rte_kni_common.h b/lib/librte_kni/rte_kni_common.h index 21b477f0aa..36d66e2ffa 100644 --- a/lib/librte_kni/rte_kni_common.h +++ b/lib/librte_kni/rte_kni_common.h @@ -86,7 +86,7 @@ struct rte_kni_mbuf { uint16_t data_len; /**< Amount of data in segment buffer. */ /* fields on second cache line */ - char pad3[8] __attribute__((__aligned__(RTE_CACHE_LINE_MIN_SIZE))); + __attribute__((__aligned__(RTE_CACHE_LINE_MIN_SIZE))) void *pool; void *next; /**< Physical address of next mbuf in kernel. */ }; diff --git a/lib/librte_mbuf/rte_mbuf_core.h b/lib/librte_mbuf/rte_mbuf_core.h index 065d87d28a..a65eaaf692 100644 --- a/lib/librte_mbuf/rte_mbuf_core.h +++ b/lib/librte_mbuf/rte_mbuf_core.h @@ -599,12 +599,6 @@ struct rte_mbuf { /* second cache line - fields only used in slow path or on TX */ RTE_MARKER cacheline1 __rte_cache_min_aligned; - RTE_STD_C11 - union { - void *userdata; /**< Can be used for external metadata */ - uint64_t udata64; /**< Allow 8-byte userdata on 32-bit */ - }; - struct rte_mempool *pool; /**< Pool from which mbuf was allocated. */ struct rte_mbuf *next; /**< Next segment of scattered packet. */ @@ -662,7 +656,7 @@ struct rte_mbuf { */ struct rte_mbuf_ext_shared_info *shinfo; - uint64_t dynfield1[2]; /**< Reserved for dynamic fields. */ + uint64_t dynfield1[3]; /**< Reserved for dynamic fields. */ } __rte_cache_aligned; /** -- 2.28.0