{"id":1658291,"url":"http://patchwork.ozlabs.org/api/patches/1658291/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-um/patch/20220720030436.79520-13-xuanzhuo@linux.alibaba.com/","project":{"id":60,"url":"http://patchwork.ozlabs.org/api/projects/60/?format=json","name":"User-mode Linux Development","link_name":"linux-um","list_id":"linux-um.lists.infradead.org","list_email":"linux-um@lists.infradead.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20220720030436.79520-13-xuanzhuo@linux.alibaba.com>","list_archive_url":null,"date":"2022-07-20T03:04:08","name":"[v12,12/40] virtio_ring: split: introduce virtqueue_reinit_split()","commit_ref":null,"pull_url":null,"state":"not-applicable","archived":false,"hash":"81f92fafc2406c52d384ab795b991e7d9c3f6896","submitter":{"id":80519,"url":"http://patchwork.ozlabs.org/api/people/80519/?format=json","name":"Xuan Zhuo","email":"xuanzhuo@linux.alibaba.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-um/patch/20220720030436.79520-13-xuanzhuo@linux.alibaba.com/mbox/","series":[{"id":310331,"url":"http://patchwork.ozlabs.org/api/series/310331/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-um/list/?series=310331","date":"2022-07-20T03:03:59","name":"virtio pci support VIRTIO_F_RING_RESET","version":12,"mbox":"http://patchwork.ozlabs.org/series/310331/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/1658291/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/1658291/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["bilbo.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=aOFnN+AI;\n\tdkim-atps=neutral","ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org;\n envelope-from=linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n receiver=)"],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n [IPv6:2607:7c80:54:3::133])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n\t(No client certificate requested)\n\tby bilbo.ozlabs.org (Postfix) with ESMTPS id 4LngYZ5t9mz9s2R\n\tfor ; Wed, 20 Jul 2022 13:05:22 +1000 (AEST)","from localhost ([::1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux))\n\tid 1oE01R-00HERZ-TR; Wed, 20 Jul 2022 03:05:13 +0000","from out30-54.freemail.mail.aliyun.com ([115.124.30.54])\n\tby bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux))\n\tid 1oE01P-00HEMi-Ci\n\tfor linux-um@lists.infradead.org; Wed, 20 Jul 2022 03:05:12 +0000","from localhost(mailfrom:xuanzhuo@linux.alibaba.com\n fp:SMTPD_---0VJuvIYA_1658286305)\n by smtp.aliyun-inc.com;\n Wed, 20 Jul 2022 11:05:06 +0800"],"DKIM-Signature":"v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20210309; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:\n\tMessage-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:\n\tResent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:\n\tList-Owner; bh=TtoaQuISc6C0rNmO1cIomCe324EFQ8nAvwPvkLhOkXc=; b=aOFnN+AIcTjFRH\n\t02V6IMduPvnoJ4AIaT5yJcjRIBsf8Jo5jy0AIfmp3qRjzChuU96ERVgHmOf2K1riSISkzUbfi3Dp8\n\t2q9IupWO/54c8JZS8zIqV7VaXM3TT6iTKtMSi7GN3ECdRWFeg0CCvk56+DHIyuRbqbheTAAuJXZKx\n\tNkhtH2T5FV4OZBtm9SR6ALu9R9VlcWltq1Oo5kbZ2smo5ehfUJilFft+fdBhN2btBgbe8Ydn8QhN5\n\tQmCV8X1ZPdOWQZ1ZqZMuwNkZrzcGtIOKfXrF7wsEf/JmAnlwcxca3ubZRXIdnxCjAwoO58xT2sY+2\n\tSclap1fgxPsD4J9gpYDg==;","X-Alimail-AntiSpam":"\n AC=PASS;BC=-1|-1;BR=01201311R471e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018045168;MF=xuanzhuo@linux.alibaba.com;NM=1;PH=DS;RN=37;SR=0;TI=SMTPD_---0VJuvIYA_1658286305;","From":"Xuan Zhuo ","To":"virtualization@lists.linux-foundation.org","Cc":"Richard Weinberger ,\n\tAnton Ivanov ,\n\tJohannes Berg ,\n\t\"Michael S. Tsirkin\" ,\n\tJason Wang ,\n\t\"David S. Miller\" ,\n\tEric Dumazet ,\n\tJakub Kicinski ,\n\tPaolo Abeni ,\n\tHans de Goede ,\n\tMark Gross ,\n\tVadim Pasternak ,\n\tBjorn Andersson ,\n\tMathieu Poirier ,\n\tCornelia Huck ,\n\tHalil Pasic ,\n\tEric Farman ,\n\tHeiko Carstens ,\n\tVasily Gorbik ,\n\tAlexander Gordeev ,\n\tChristian Borntraeger ,\n\tSven Schnelle ,\n\tAlexei Starovoitov ,\n\tDaniel Borkmann ,\n\tJesper Dangaard Brouer ,\n\tJohn Fastabend ,\n\tXuan Zhuo ,\n\tVincent Whitchurch ,\n\tlinux-um@lists.infradead.org,\n\tnetdev@vger.kernel.org,\n\tplatform-driver-x86@vger.kernel.org,\n\tlinux-remoteproc@vger.kernel.org,\n\tlinux-s390@vger.kernel.org,\n\tkvm@vger.kernel.org,\n\tbpf@vger.kernel.org,\n\tkangjie.xu@linux.alibaba.com","Subject":"[PATCH v12 12/40] virtio_ring: split: introduce\n virtqueue_reinit_split()","Date":"Wed, 20 Jul 2022 11:04:08 +0800","Message-Id":"<20220720030436.79520-13-xuanzhuo@linux.alibaba.com>","X-Mailer":"git-send-email 2.31.0","In-Reply-To":"<20220720030436.79520-1-xuanzhuo@linux.alibaba.com>","References":"<20220720030436.79520-1-xuanzhuo@linux.alibaba.com>","MIME-Version":"1.0","X-Git-Hash":"366032b2ffac","X-CRM114-Version":"20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ","X-CRM114-CacheID":"sfid-20220719_200511_678206_8BBAC60F ","X-CRM114-Status":"UNSURE ( 7.53 )","X-CRM114-Notice":"Please train this message.","X-Spam-Score":"-8.0 (--------)","X-Spam-Report":"Spam detection software,\n running on the system \"bombadil.infradead.org\",\n has NOT identified this incoming email as spam. The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: Introduce a function to initialize vq without allocating\n new\n ring, desc_state, desc_extra. Subsequent patches will call this function\n after reset vq to reinitialize vq. Signed-off-by: Xuan Zhuo\n \n Acked-by: Jason Wang ---\n drivers/virtio/virtio_ring.c\n | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)\n Content analysis details: (-8.0 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/,\n no trust\n [115.124.30.54 listed in list.dnswl.org]\n -0.0 SPF_PASS SPF: sender matches SPF record\n 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record\n -7.5 USER_IN_DEF_SPF_WL From: address is in the default SPF\n white-list\n -0.5 ENV_AND_HDR_SPF_MATCH Env and Hdr From used in default SPF WL\n Match\n 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay\n lines","X-BeenThere":"linux-um@lists.infradead.org","X-Mailman-Version":"2.1.34","Precedence":"list","List-Id":"","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Sender":"\"linux-um\" ","Errors-To":"linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"},"content":"Introduce a function to initialize vq without allocating new ring,\ndesc_state, desc_extra.\n\nSubsequent patches will call this function after reset vq to\nreinitialize vq.\n\nSigned-off-by: Xuan Zhuo \nAcked-by: Jason Wang \n---\n drivers/virtio/virtio_ring.c | 19 +++++++++++++++++++\n 1 file changed, 19 insertions(+)","diff":"diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c\nindex 0c952281264f..2d5e8aec6685 100644\n--- a/drivers/virtio/virtio_ring.c\n+++ b/drivers/virtio/virtio_ring.c\n@@ -958,6 +958,25 @@ static void virtqueue_vring_init_split(struct vring_virtqueue *vq)\n \t}\n }\n \n+static void virtqueue_reinit_split(struct vring_virtqueue *vq)\n+{\n+\tint size, i;\n+\n+\tmemset(vq->split.vring.desc, 0, vq->split.queue_size_in_bytes);\n+\n+\tsize = sizeof(struct vring_desc_state_split) * vq->split.vring.num;\n+\tmemset(vq->split.desc_state, 0, size);\n+\n+\tsize = sizeof(struct vring_desc_extra) * vq->split.vring.num;\n+\tmemset(vq->split.desc_extra, 0, size);\n+\n+\tfor (i = 0; i < vq->split.vring.num - 1; i++)\n+\t\tvq->split.desc_extra[i].next = i + 1;\n+\n+\tvirtqueue_init(vq, vq->split.vring.num);\n+\tvirtqueue_vring_init_split(vq);\n+}\n+\n static void virtqueue_vring_attach_split(struct vring_virtqueue *vq,\n \t\t\t\t\t struct vring_virtqueue_split *vring_split)\n {\n","prefixes":["v12","12/40"]}