From patchwork Wed Jun 8 03:23:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ronak Doshi X-Patchwork-Id: 12872860 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 43DD1C433EF for ; Wed, 8 Jun 2022 05:41:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233642AbiFHFlH (ORCPT ); Wed, 8 Jun 2022 01:41:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44470 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236085AbiFHFky (ORCPT ); Wed, 8 Jun 2022 01:40:54 -0400 Received: from EX-PRD-EDGE01.vmware.com (ex-prd-edge01.vmware.com [208.91.3.33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 22C3940BA5B; Tue, 7 Jun 2022 20:24:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; s=s1024; d=vmware.com; h=from:to:cc:subject:date:message-id:in-reply-to:mime-version: content-type; bh=q1Tg/wqCzr6O6IDRP6nkjppRtmGVU7CRSaKK5KQoZrA=; b=gM+7zrFYzjuT6XB249YrR14hDSE0pNgadBb5EYVQBxpkux77eDEerMCkNigeDr VX6ec/RkYldNjjdjNkC9dSCkhTJsL+27eDaJz+Wm+4N+T8AtGr7m9bVIq2C8d/ dhn6J1AQpqzipRJ7BPGBgUKzSKT2Ysbu1tdVppMyHslNiKc= Received: from sc9-mailhost1.vmware.com (10.113.161.71) by EX-PRD-EDGE01.vmware.com (10.188.245.6) with Microsoft SMTP Server id 15.1.2308.20; Tue, 7 Jun 2022 20:23:53 -0700 Received: from htb-1n-eng-dhcp122.eng.vmware.com (unknown [10.20.114.216]) by sc9-mailhost1.vmware.com (Postfix) with ESMTP id 9C6692346F; Tue, 7 Jun 2022 20:24:08 -0700 (PDT) Received: by htb-1n-eng-dhcp122.eng.vmware.com (Postfix, from userid 0) id 96D69AA454; Tue, 7 Jun 2022 20:24:08 -0700 (PDT) From: Ronak Doshi To: CC: Ronak Doshi , VMware PV-Drivers Reviewers , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , open list Subject: [PATCH v3 net-next 7/8] vmxnet3: use ext1 field to indicate encapsulated packet Date: Tue, 7 Jun 2022 20:23:52 -0700 Message-ID: <20220608032353.964-8-doshir@vmware.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20220608032353.964-1-doshir@vmware.com> References: <20220608032353.964-1-doshir@vmware.com> MIME-Version: 1.0 Received-SPF: None (EX-PRD-EDGE01.vmware.com: doshir@vmware.com does not designate permitted sender hosts) Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Till vmxnet3 version 6, om field of transmit descriptor was used to indicate encapsulated offload packet and msscof was used to indirectly indicate TSO/CSO. From version 7 and later, ext1 field will be used to indicate whether packet is encapsulated or not and om fields will continue to indicate if the packet is TSO or CSO. Signed-off-by: Ronak Doshi Acked-by: Guolin Yang --- drivers/net/vmxnet3/vmxnet3_defs.h | 14 ++++++++------ drivers/net/vmxnet3/vmxnet3_drv.c | 18 +++++++++++++++--- 2 files changed, 23 insertions(+), 9 deletions(-) diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h index cb9dc72f2b3d..41d6767283a6 100644 --- a/drivers/net/vmxnet3/vmxnet3_defs.h +++ b/drivers/net/vmxnet3/vmxnet3_defs.h @@ -148,17 +148,17 @@ struct Vmxnet3_TxDesc { #ifdef __BIG_ENDIAN_BITFIELD u32 msscof:14; /* MSS, checksum offset, flags */ - u32 ext1:1; + u32 ext1:1; /* set to 1 to indicate inner csum/tso, vmxnet3 v7 */ u32 dtype:1; /* descriptor type */ - u32 oco:1; + u32 oco:1; /* Outer csum offload */ u32 gen:1; /* generation bit */ u32 len:14; #else u32 len:14; u32 gen:1; /* generation bit */ - u32 oco:1; + u32 oco:1; /* Outer csum offload */ u32 dtype:1; /* descriptor type */ - u32 ext1:1; + u32 ext1:1; /* set to 1 to indicate inner csum/tso, vmxnet3 v7 */ u32 msscof:14; /* MSS, checksum offset, flags */ #endif /* __BIG_ENDIAN_BITFIELD */ @@ -262,11 +262,13 @@ struct Vmxnet3_RxCompDesc { u32 rqID:10; /* rx queue/ring ID */ u32 sop:1; /* Start of Packet */ u32 eop:1; /* End of Packet */ - u32 ext1:2; + u32 ext1:2; /* bit 0: indicating v4/v6/.. is for inner header */ + /* bit 1: indicating rssType is based on inner header */ u32 rxdIdx:12; /* Index of the RxDesc */ #else u32 rxdIdx:12; /* Index of the RxDesc */ - u32 ext1:2; + u32 ext1:2; /* bit 0: indicating v4/v6/.. is for inner header */ + /* bit 1: indicating rssType is based on inner header */ u32 eop:1; /* End of Packet */ u32 sop:1; /* Start of Packet */ u32 rqID:10; /* rx queue/ring ID */ diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 2ee3a2e39f10..5c42b4a008e8 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -1161,7 +1161,12 @@ vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq, if (ctx.mss) { if (VMXNET3_VERSION_GE_4(adapter) && skb->encapsulation) { gdesc->txd.hlen = ctx.l4_offset + ctx.l4_hdr_size; - gdesc->txd.om = VMXNET3_OM_ENCAP; + if (VMXNET3_VERSION_GE_7(adapter)) { + gdesc->txd.om = VMXNET3_OM_TSO; + gdesc->txd.ext1 = 1; + } else { + gdesc->txd.om = VMXNET3_OM_ENCAP; + } gdesc->txd.msscof = ctx.mss; if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL_CSUM) @@ -1178,8 +1183,15 @@ vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq, skb->encapsulation) { gdesc->txd.hlen = ctx.l4_offset + ctx.l4_hdr_size; - gdesc->txd.om = VMXNET3_OM_ENCAP; - gdesc->txd.msscof = 0; /* Reserved */ + if (VMXNET3_VERSION_GE_7(adapter)) { + gdesc->txd.om = VMXNET3_OM_CSUM; + gdesc->txd.msscof = ctx.l4_offset + + skb->csum_offset; + gdesc->txd.ext1 = 1; + } else { + gdesc->txd.om = VMXNET3_OM_ENCAP; + gdesc->txd.msscof = 0; /* Reserved */ + } } else { gdesc->txd.hlen = ctx.l4_offset; gdesc->txd.om = VMXNET3_OM_CSUM;