From patchwork Wed May 4 07:40:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yongji Xie X-Patchwork-Id: 1626104 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=bytedance-com.20210112.gappssmtp.com header.i=@bytedance-com.20210112.gappssmtp.com header.a=rsa-sha256 header.s=20210112 header.b=MtiB/xPs; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4KtTMv2FRYz9sG4 for ; Wed, 4 May 2022 17:43:23 +1000 (AEST) Received: from localhost ([::1]:56360 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nm9fM-0003KN-DA for incoming@patchwork.ozlabs.org; Wed, 04 May 2022 03:43:20 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52606) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nm9dF-0002d8-C4 for qemu-devel@nongnu.org; Wed, 04 May 2022 03:41:20 -0400 Received: from mail-pj1-x1031.google.com ([2607:f8b0:4864:20::1031]:53116) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nm9dC-00075J-VQ for qemu-devel@nongnu.org; Wed, 04 May 2022 03:41:09 -0400 Received: by mail-pj1-x1031.google.com with SMTP id e24so523750pjt.2 for ; Wed, 04 May 2022 00:41:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Xk261oHbXKFFnsukENd6oL02N15hbamNQACtPikcMSk=; b=MtiB/xPsRn1rHqMJnCx8eSuq4M7QvEwDZVL4E3fmXjduSgjIwgHG+w/Yh4C1YrnbED OXUXJOyGaaGLYDdReFm0NZNdyhCxXYBOIDvv8+sbNIHnm/kMY++sWk+Xi0+r86H3wBum UMwZiGVXp++ZaJOfgL7Q+O6bUopA0BUBKi1OxD+T/MTq0Rw4b2+F0aEnBxf2PcI8TyB2 RWNnRN5WdRpDMrb/ylz3NDm1d/xLUZR4BQ31p+6POt53sRzG4UA9t5i0ni7JGmpVUhZz 7Zjjc3ekLpML76f39Ol/UHLdCU4DJfvvoLIbeEdvr0ZSnKnBTwcL7BsvHiegQGeJtmxt CJ5g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Xk261oHbXKFFnsukENd6oL02N15hbamNQACtPikcMSk=; b=YDJm7UqlQCDGRqUxn+Wj5eI+zzBqRSOQ/W7HYJTMzsjPcUgpEbXKgBXLAioeM4vadE m6ZvqM9jLVIgB+4SFXJaSEUM70lusAWAnijPaS01vVFNXiB+2KrR1+jeNIE62ezUUq+P lshEjzFnGv3YANVmY5oc+9hSSAf6Cu5vbMqz5GGNSjhwiT6ms01krV1ahDsPGjjurm7q PPl83mlk94V5Y2VLwvFiThxKwguwst+hGuuMM3uu+lmBydLqbHwPOQx08VCsuESAFKjC qDvVogGF2UtJ1Au5DtmciCReQwr0Lmg47gHDa/KOFoEfHyIb5K1a129vM54907/kaNkw rtNQ== X-Gm-Message-State: AOAM530KsrjpSJ4NTDbkarDHTJtfXf4daWFNPzSr/iM2Ix4joaSZCC6P SjN2w2mE7wIRBgLeMcF1boqW X-Google-Smtp-Source: ABdhPJxTfVtXy8swI6avJk+u6PipbaKq3Xzcl1In4D81Xl6gD1bsU1W5NPdGIUxlIqBn5BfVNf6IXQ== X-Received: by 2002:a17:90b:1d03:b0:1dc:9589:7c90 with SMTP id on3-20020a17090b1d0300b001dc95897c90mr3769593pjb.225.1651650065260; Wed, 04 May 2022 00:41:05 -0700 (PDT) Received: from localhost ([139.177.225.233]) by smtp.gmail.com with ESMTPSA id i3-20020a17090a718300b001d6a79768b6sm2584446pjk.49.2022.05.04.00.41.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 May 2022 00:41:04 -0700 (PDT) From: Xie Yongji To: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com, sgarzare@redhat.com, kwolf@redhat.com, mreitz@redhat.com, mlureau@redhat.com, jsnow@redhat.com, eblake@redhat.com, Coiby.Xu@gmail.com, hreitz@redhat.com Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH v5 7/8] vduse-blk: Add vduse-blk resize support Date: Wed, 4 May 2022 15:40:50 +0800 Message-Id: <20220504074051.90-8-xieyongji@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220504074051.90-1-xieyongji@bytedance.com> References: <20220504074051.90-1-xieyongji@bytedance.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::1031; envelope-from=xieyongji@bytedance.com; helo=mail-pj1-x1031.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" To support block resize, this uses vduse_dev_update_config() to update the capacity field in configuration space and inject config interrupt on the block resize callback. Signed-off-by: Xie Yongji Reviewed-by: Stefan Hajnoczi Reviewed-by: Stefan Hajnoczi --- block/export/vduse-blk.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/block/export/vduse-blk.c b/block/export/vduse-blk.c index 8580ae929f..2b72baf7ab 100644 --- a/block/export/vduse-blk.c +++ b/block/export/vduse-blk.c @@ -188,6 +188,23 @@ static void blk_aio_detach(void *opaque) vblk_exp->export.ctx = NULL; } +static void vduse_blk_resize(void *opaque) +{ + BlockExport *exp = opaque; + VduseBlkExport *vblk_exp = container_of(exp, VduseBlkExport, export); + struct virtio_blk_config config; + + config.capacity = + cpu_to_le64(blk_getlength(exp->blk) >> VIRTIO_BLK_SECTOR_BITS); + vduse_dev_update_config(vblk_exp->dev, sizeof(config.capacity), + offsetof(struct virtio_blk_config, capacity), + (char *)&config.capacity); +} + +static const BlockDevOps vduse_block_ops = { + .resize_cb = vduse_blk_resize, +}; + static int vduse_blk_exp_create(BlockExport *exp, BlockExportOptions *opts, Error **errp) { @@ -284,6 +301,8 @@ static int vduse_blk_exp_create(BlockExport *exp, BlockExportOptions *opts, blk_add_aio_context_notifier(exp->blk, blk_aio_attached, blk_aio_detach, vblk_exp); + blk_set_dev_ops(exp->blk, &vduse_block_ops, exp); + return 0; } @@ -293,6 +312,7 @@ static void vduse_blk_exp_delete(BlockExport *exp) blk_remove_aio_context_notifier(exp->blk, blk_aio_attached, blk_aio_detach, vblk_exp); + blk_set_dev_ops(exp->blk, NULL, NULL); vduse_dev_destroy(vblk_exp->dev); }