From patchwork Mon Aug 31 09:27:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dima Stepanov X-Patchwork-Id: 11746009 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1767D1667 for ; Mon, 31 Aug 2020 09:28:45 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id E0581208DB for ; Mon, 31 Aug 2020 09:28:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=yandex-team.ru header.i=@yandex-team.ru header.b="TnEo8cwD" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E0581208DB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=yandex-team.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:48182 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kCg7I-00039n-15 for patchwork-qemu-devel@patchwork.kernel.org; Mon, 31 Aug 2020 05:28:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55636) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCg6Z-0001Ue-7P; Mon, 31 Aug 2020 05:27:59 -0400 Received: from forwardcorp1p.mail.yandex.net ([2a02:6b8:0:1472:2741:0:8b6:217]:59602) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCg6W-0004zG-Pm; Mon, 31 Aug 2020 05:27:58 -0400 Received: from sas1-ec30c78b6c5b.qloud-c.yandex.net (sas1-ec30c78b6c5b.qloud-c.yandex.net [IPv6:2a02:6b8:c14:2704:0:640:ec30:c78b]) by forwardcorp1p.mail.yandex.net (Yandex) with ESMTP id 38D132E1590; Mon, 31 Aug 2020 12:27:51 +0300 (MSK) Received: from sas1-58a37b48fb94.qloud-c.yandex.net (sas1-58a37b48fb94.qloud-c.yandex.net [2a02:6b8:c08:1d1b:0:640:58a3:7b48]) by sas1-ec30c78b6c5b.qloud-c.yandex.net (mxbackcorp/Yandex) with ESMTP id nDlPDWXa4i-Rov4wBGi; Mon, 31 Aug 2020 12:27:51 +0300 Precedence: bulk DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1598866071; bh=mkJN5lUBUWPh+shtqKT1+IzCrqgHMkCefejVB9m0YBA=; h=In-Reply-To:In-Reply-To:Message-Id:References:References:Date: Subject:To:From:Cc; b=TnEo8cwDgGNwkKLurN6wngR3xc/Ib5aCmlwgSrBy7fe6enLQhEnt7s+tdonW+lRTj oqUW/IMLYjzSFiSQwCh/bZ8GJdl0G+p0VDbPe+tSxrtP+hrjJ0sxarrKebBL4RgJT5 rQ8kxVKssNN/5H8QcuqxE5pOzc3/f8EQuR0JETck= Authentication-Results: sas1-ec30c78b6c5b.qloud-c.yandex.net; dkim=pass header.i=@yandex-team.ru Received: from dynamic-vpn.dhcp.yndx.net (dynamic-vpn.dhcp.yndx.net [2a02:6b8:b081:216::1:a]) by sas1-58a37b48fb94.qloud-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id yaozkQMlmT-Rom8h0Zl; Mon, 31 Aug 2020 12:27:50 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (Client certificate not present) From: Dima Stepanov To: qemu-devel@nongnu.org Subject: [PATCH v3 1/7] vhost: recheck dev state in the vhost_migration_log routine Date: Mon, 31 Aug 2020 12:27:17 +0300 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Received-SPF: pass client-ip=2a02:6b8:0:1472:2741:0:8b6:217; envelope-from=dimastep@yandex-team.ru; helo=forwardcorp1p.mail.yandex.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/31 04:24:12 X-ACL-Warn: Detected OS = ??? X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, lvivier@redhat.com, thuth@redhat.com, qemu-block@nongnu.org, mst@redhat.com, jasowang@redhat.com, dgilbert@redhat.com, mreitz@redhat.com, fengli@smartx.com, yc-core@yandex-team.ru, pbonzini@redhat.com, raphael.norwitz@nutanix.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" vhost-user devices can get a disconnect in the middle of the VHOST-USER handshake on the migration start. If disconnect event happened right before sending next VHOST-USER command, then the vhost_dev_set_log() call in the vhost_migration_log() function will return error. This error will lead to the assert() and close the QEMU migration source process. For the vhost-user devices the disconnect event should not break the migration process, because: - the device will be in the stopped state, so it will not be changed during migration - if reconnect will be made the migration log will be reinitialized as part of reconnect/init process: #0 vhost_log_global_start (listener=0x563989cf7be0) at hw/virtio/vhost.c:920 #1 0x000056398603d8bc in listener_add_address_space (listener=0x563989cf7be0, as=0x563986ea4340 ) at softmmu/memory.c:2664 #2 0x000056398603dd30 in memory_listener_register (listener=0x563989cf7be0, as=0x563986ea4340 ) at softmmu/memory.c:2740 #3 0x0000563985fd6956 in vhost_dev_init (hdev=0x563989cf7bd8, opaque=0x563989cf7e30, backend_type=VHOST_BACKEND_TYPE_USER, busyloop_timeout=0) at hw/virtio/vhost.c:1385 #4 0x0000563985f7d0b8 in vhost_user_blk_connect (dev=0x563989cf7990) at hw/block/vhost-user-blk.c:315 #5 0x0000563985f7d3f6 in vhost_user_blk_event (opaque=0x563989cf7990, event=CHR_EVENT_OPENED) at hw/block/vhost-user-blk.c:379 Update the vhost-user-blk device with the internal started_vu field which will be used for initialization (vhost_user_blk_start) and clean up (vhost_user_blk_stop). This additional flag in the VhostUserBlk structure will be used to track whether the device really needs to be stopped and cleaned up on a vhost-user level. The disconnect event will set the overall VHOST device (not vhost-user) to the stopped state, so it can be used by the general vhost_migration_log routine. Such approach could be propogated to the other vhost-user devices, but better idea is just to make the same connect/disconnect code for all the vhost-user devices. This migration issue was slightly discussed earlier: - https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg01509.html - https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05241.html Signed-off-by: Dima Stepanov Reviewed-by: Raphael Norwitz --- hw/block/vhost-user-blk.c | 19 ++++++++++++++++--- hw/virtio/vhost.c | 27 ++++++++++++++++++++++++--- include/hw/virtio/vhost-user-blk.h | 10 ++++++++++ 3 files changed, 50 insertions(+), 6 deletions(-) diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c index 39aec42..a076b1e 100644 --- a/hw/block/vhost-user-blk.c +++ b/hw/block/vhost-user-blk.c @@ -150,6 +150,7 @@ static int vhost_user_blk_start(VirtIODevice *vdev) error_report("Error starting vhost: %d", -ret); goto err_guest_notifiers; } + s->started_vu = true; /* guest_notifier_mask/pending not used yet, so just unmask * everything here. virtio-pci will do the right thing by @@ -175,6 +176,11 @@ static void vhost_user_blk_stop(VirtIODevice *vdev) VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); int ret; + if (!s->started_vu) { + return; + } + s->started_vu = false; + if (!k->set_guest_notifiers) { return; } @@ -341,9 +347,7 @@ static void vhost_user_blk_disconnect(DeviceState *dev) } s->connected = false; - if (s->dev.started) { - vhost_user_blk_stop(vdev); - } + vhost_user_blk_stop(vdev); vhost_dev_cleanup(&s->dev); } @@ -399,6 +403,15 @@ static void vhost_user_blk_event(void *opaque, QEMUChrEvent event) NULL, NULL, false); aio_bh_schedule_oneshot(ctx, vhost_user_blk_chr_closed_bh, opaque); } + + /* + * Move vhost device to the stopped state. The vhost-user device + * will be clean up and disconnected in BH. This can be useful in + * the vhost migration code. If disconnect was caught there is an + * option for the general vhost code to get the dev state without + * knowing its type (in this case vhost-user). + */ + s->dev.started = false; break; case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index 1a1384e..ffef7ab 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -861,21 +861,42 @@ static int vhost_migration_log(MemoryListener *listener, bool enable) dev->log_enabled = enable; return 0; } + + r = 0; if (!enable) { r = vhost_dev_set_log(dev, false); if (r < 0) { - return r; + goto check_dev_state; } vhost_log_put(dev, false); } else { vhost_dev_log_resize(dev, vhost_get_log_size(dev)); r = vhost_dev_set_log(dev, true); if (r < 0) { - return r; + goto check_dev_state; } } + +check_dev_state: dev->log_enabled = enable; - return 0; + /* + * vhost-user-* devices could change their state during log + * initialization due to disconnect. So check dev state after + * vhost communication. + */ + if (!dev->started) { + /* + * Since device is in the stopped state, it is okay for + * migration. Return success. + */ + r = 0; + } + if (r) { + /* An error is occured. */ + dev->log_enabled = false; + } + + return r; } static void vhost_log_global_start(MemoryListener *listener) diff --git a/include/hw/virtio/vhost-user-blk.h b/include/hw/virtio/vhost-user-blk.h index 292d171..4d6f4c0 100644 --- a/include/hw/virtio/vhost-user-blk.h +++ b/include/hw/virtio/vhost-user-blk.h @@ -40,7 +40,17 @@ typedef struct VHostUserBlk { VhostUserState vhost_user; struct vhost_virtqueue *vhost_vqs; VirtQueue **virtqs; + + /* + * There are at least two steps of initialization of the + * vhost-user device. The first is a "connect" step and + * second is a "start" step. Make a separation between + * those initialization phases by using two fields. + */ + /* vhost_user_blk_connect/vhost_user_blk_disconnect */ bool connected; + /* vhost_user_blk_start/vhost_user_blk_stop */ + bool started_vu; } VHostUserBlk; #endif From patchwork Mon Aug 31 09:27:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dima Stepanov X-Patchwork-Id: 11746007 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A6D71618 for ; Mon, 31 Aug 2020 09:28:37 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id D584E208DB for ; Mon, 31 Aug 2020 09:28:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=yandex-team.ru header.i=@yandex-team.ru header.b="1aHShIP1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D584E208DB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=yandex-team.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:47448 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kCg79-0002rN-Br for patchwork-qemu-devel@patchwork.kernel.org; Mon, 31 Aug 2020 05:28:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55642) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCg6a-0001Vx-50; Mon, 31 Aug 2020 05:28:00 -0400 Received: from forwardcorp1p.mail.yandex.net ([2a02:6b8:0:1472:2741:0:8b6:217]:59834) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCg6Y-0004zc-Dy; Mon, 31 Aug 2020 05:27:59 -0400 Received: from sas1-ec30c78b6c5b.qloud-c.yandex.net (sas1-ec30c78b6c5b.qloud-c.yandex.net [IPv6:2a02:6b8:c14:2704:0:640:ec30:c78b]) by forwardcorp1p.mail.yandex.net (Yandex) with ESMTP id 9C0512E15E7; Mon, 31 Aug 2020 12:27:53 +0300 (MSK) Received: from sas1-58a37b48fb94.qloud-c.yandex.net (sas1-58a37b48fb94.qloud-c.yandex.net [2a02:6b8:c08:1d1b:0:640:58a3:7b48]) by sas1-ec30c78b6c5b.qloud-c.yandex.net (mxbackcorp/Yandex) with ESMTP id XkxenMCgdz-Rqv8PXdx; Mon, 31 Aug 2020 12:27:53 +0300 Precedence: bulk DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1598866073; bh=w4HAjC+uPauCS+4y5UQZrU0FI/SIeVh9OnDJmAmUQsg=; h=In-Reply-To:In-Reply-To:Message-Id:References:References:Date: Subject:To:From:Cc; b=1aHShIP1bnot4avwtSApn/lP4DBkJ5xoIPEb5IClup1+dxfXNxiH8B2eCI0cio/pq 6dROcY/pOGAun4Z3Q+ctWS2bEVkpacsBrTTwtQVWxKeQcwrFdJlgVIxT0pGgx+ByPV TP4zVLZMD+tuRSSokSKHIxKI7tIGXZB5XZKdPhW4= Authentication-Results: sas1-ec30c78b6c5b.qloud-c.yandex.net; dkim=pass header.i=@yandex-team.ru Received: from dynamic-vpn.dhcp.yndx.net (dynamic-vpn.dhcp.yndx.net [2a02:6b8:b081:216::1:a]) by sas1-58a37b48fb94.qloud-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id yaozkQMlmT-Rqm81KUg; Mon, 31 Aug 2020 12:27:52 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (Client certificate not present) From: Dima Stepanov To: qemu-devel@nongnu.org Subject: [PATCH v3 2/7] vhost: check queue state in the vhost_dev_set_log routine Date: Mon, 31 Aug 2020 12:27:18 +0300 Message-Id: <2da64fc45789094b6bd6f1c283cac9e47eeeb786.1598865610.git.dimastep@yandex-team.ru> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Received-SPF: pass client-ip=2a02:6b8:0:1472:2741:0:8b6:217; envelope-from=dimastep@yandex-team.ru; helo=forwardcorp1p.mail.yandex.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/31 04:24:12 X-ACL-Warn: Detected OS = ??? X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, lvivier@redhat.com, thuth@redhat.com, qemu-block@nongnu.org, mst@redhat.com, jasowang@redhat.com, dgilbert@redhat.com, mreitz@redhat.com, fengli@smartx.com, yc-core@yandex-team.ru, pbonzini@redhat.com, raphael.norwitz@nutanix.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" If the vhost-user-blk daemon provides only one virtqueue, but device was added with several queues, then QEMU will send more VHOST-USER command than expected by daemon side. The vhost_virtqueue_start() routine handles such case by checking the return value from the virtio_queue_get_desc_addr() function call. Add the same check to the vhost_dev_set_log() routine. Signed-off-by: Dima Stepanov --- hw/virtio/vhost.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index ffef7ab..a33ffd4 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -825,12 +825,24 @@ static int vhost_dev_set_features(struct vhost_dev *dev, static int vhost_dev_set_log(struct vhost_dev *dev, bool enable_log) { int r, i, idx; + hwaddr addr; + r = vhost_dev_set_features(dev, enable_log); if (r < 0) { goto err_features; } for (i = 0; i < dev->nvqs; ++i) { idx = dev->vhost_ops->vhost_get_vq_index(dev, dev->vq_index + i); + addr = virtio_queue_get_desc_addr(dev->vdev, idx); + if (!addr) { + /* + * The queue might not be ready for start. If this + * is the case there is no reason to continue the process. + * The similar logic is used by the vhost_virtqueue_start() + * routine. + */ + break; + } r = vhost_virtqueue_set_addr(dev, dev->vqs + i, idx, enable_log); if (r < 0) { From patchwork Mon Aug 31 09:27:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dima Stepanov X-Patchwork-Id: 11746013 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8EF10618 for ; Mon, 31 Aug 2020 09:30:28 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 61F18206F0 for ; Mon, 31 Aug 2020 09:30:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=yandex-team.ru header.i=@yandex-team.ru header.b="zf3Lzc2t" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 61F18206F0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=yandex-team.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:53664 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kCg8x-0005Yh-G2 for patchwork-qemu-devel@patchwork.kernel.org; Mon, 31 Aug 2020 05:30:27 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55662) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCg6b-0001YW-NS; Mon, 31 Aug 2020 05:28:01 -0400 Received: from forwardcorp1p.mail.yandex.net ([77.88.29.217]:58212) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCg6Z-0004zq-Cz; Mon, 31 Aug 2020 05:28:01 -0400 Received: from sas1-ec30c78b6c5b.qloud-c.yandex.net (sas1-ec30c78b6c5b.qloud-c.yandex.net [IPv6:2a02:6b8:c14:2704:0:640:ec30:c78b]) by forwardcorp1p.mail.yandex.net (Yandex) with ESMTP id 1C7C92E1666; Mon, 31 Aug 2020 12:27:57 +0300 (MSK) Received: from sas1-58a37b48fb94.qloud-c.yandex.net (sas1-58a37b48fb94.qloud-c.yandex.net [2a02:6b8:c08:1d1b:0:640:58a3:7b48]) by sas1-ec30c78b6c5b.qloud-c.yandex.net (mxbackcorp/Yandex) with ESMTP id YIJyRZsaXO-RsvKR2Ht; Mon, 31 Aug 2020 12:27:56 +0300 Precedence: bulk DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1598866076; bh=gDOPq1RV3CLuGyPljyeYmAP4zg0EO7xHieFeyJevpn0=; h=In-Reply-To:In-Reply-To:Message-Id:References:References:Date: Subject:To:From:Cc; b=zf3Lzc2t6+6X9RKsKEw3iaTl3BgCuO8FGwaoVmEBF0JgrKdLnSCBdqxilkBi1LHMF v9FjXHBDzxusBply0wYBwjfy22x7JoaKSpAgb67mbgziuHiqFLwAxAc1alDDop1JmE TRXOJjytXQfjt5ZscZ4USXHs2Ad7er2xo1MOAXH4= Authentication-Results: sas1-ec30c78b6c5b.qloud-c.yandex.net; dkim=pass header.i=@yandex-team.ru Received: from dynamic-vpn.dhcp.yndx.net (dynamic-vpn.dhcp.yndx.net [2a02:6b8:b081:216::1:a]) by sas1-58a37b48fb94.qloud-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id yaozkQMlmT-Rsm8S903; Mon, 31 Aug 2020 12:27:54 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (Client certificate not present) From: Dima Stepanov To: qemu-devel@nongnu.org Subject: [PATCH v3 3/7] tests/qtest/vhost-user-test: prepare the tests for adding new dev class Date: Mon, 31 Aug 2020 12:27:19 +0300 Message-Id: <769cf817bad80e2534093e5887837b1c5e4675e2.1598865610.git.dimastep@yandex-team.ru> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Received-SPF: pass client-ip=77.88.29.217; envelope-from=dimastep@yandex-team.ru; helo=forwardcorp1p.mail.yandex.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/31 04:37:44 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, lvivier@redhat.com, thuth@redhat.com, qemu-block@nongnu.org, mst@redhat.com, jasowang@redhat.com, dgilbert@redhat.com, mreitz@redhat.com, fengli@smartx.com, yc-core@yandex-team.ru, pbonzini@redhat.com, raphael.norwitz@nutanix.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" For now only vhost-user-net device is supported by the test. Other vhost-user devices are not tested. As a first step make source code refactoring so new devices can reuse the same test routines. To make this provide a new vhost_user_ops structure with the methods to initialize device, its command line or make a proper vhost-user responses. Signed-off-by: Dima Stepanov --- tests/qtest/vhost-user-test.c | 105 ++++++++++++++++++++++++++++++------------ 1 file changed, 76 insertions(+), 29 deletions(-) diff --git a/tests/qtest/vhost-user-test.c b/tests/qtest/vhost-user-test.c index 9ee0f1e..3df5322 100644 --- a/tests/qtest/vhost-user-test.c +++ b/tests/qtest/vhost-user-test.c @@ -135,6 +135,10 @@ enum { TEST_FLAGS_END, }; +enum { + VHOST_USER_NET, +}; + typedef struct TestServer { gchar *socket_path; gchar *mig_path; @@ -154,10 +158,25 @@ typedef struct TestServer { bool test_fail; int test_flags; int queues; + struct vhost_user_ops *vu_ops; } TestServer; +struct vhost_user_ops { + /* Device types. */ + int type; + void (*append_opts)(TestServer *s, GString *cmd_line, + const char *chr_opts); + + /* VHOST-USER commands. */ + void (*set_features)(TestServer *s, CharBackend *chr, + VhostUserMsg *msg); + void (*get_protocol_features)(TestServer *s, + CharBackend *chr, VhostUserMsg *msg); +}; + static const char *init_hugepagefs(void); -static TestServer *test_server_new(const gchar *name); +static TestServer *test_server_new(const gchar *name, + struct vhost_user_ops *ops); static void test_server_free(TestServer *server); static void test_server_listen(TestServer *server); @@ -167,7 +186,7 @@ enum test_memfd { TEST_MEMFD_NO, }; -static void append_vhost_opts(TestServer *s, GString *cmd_line, +static void append_vhost_net_opts(TestServer *s, GString *cmd_line, const char *chr_opts) { g_string_append_printf(cmd_line, QEMU_CMD_CHR QEMU_CMD_NETDEV, @@ -332,25 +351,15 @@ static void chr_read(void *opaque, const uint8_t *buf, int size) break; case VHOST_USER_SET_FEATURES: - g_assert_cmpint(msg.payload.u64 & (0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES), - !=, 0ULL); - if (s->test_flags == TEST_FLAGS_DISCONNECT) { - qemu_chr_fe_disconnect(chr); - s->test_flags = TEST_FLAGS_BAD; + if (s->vu_ops->set_features) { + s->vu_ops->set_features(s, chr, &msg); } break; case VHOST_USER_GET_PROTOCOL_FEATURES: - /* send back features to qemu */ - msg.flags |= VHOST_USER_REPLY_MASK; - msg.size = sizeof(m.payload.u64); - msg.payload.u64 = 1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD; - msg.payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_CROSS_ENDIAN; - if (s->queues > 1) { - msg.payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_MQ; + if (s->vu_ops->get_protocol_features) { + s->vu_ops->get_protocol_features(s, chr, &msg); } - p = (uint8_t *) &msg; - qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size); break; case VHOST_USER_GET_VRING_BASE: @@ -467,7 +476,8 @@ static const char *init_hugepagefs(void) #endif } -static TestServer *test_server_new(const gchar *name) +static TestServer *test_server_new(const gchar *name, + struct vhost_user_ops *ops) { TestServer *server = g_new0(TestServer, 1); char template[] = "/tmp/vhost-test-XXXXXX"; @@ -495,6 +505,7 @@ static TestServer *test_server_new(const gchar *name) server->log_fd = -1; server->queues = 1; + server->vu_ops = ops; return server; } @@ -669,11 +680,11 @@ static void vhost_user_test_cleanup(void *s) static void *vhost_user_test_setup(GString *cmd_line, void *arg) { - TestServer *server = test_server_new("vhost-user-test"); + TestServer *server = test_server_new("vhost-user-test", arg); test_server_listen(server); append_mem_opts(server, cmd_line, 256, TEST_MEMFD_AUTO); - append_vhost_opts(server, cmd_line, ""); + server->vu_ops->append_opts(server, cmd_line, ""); g_test_queue_destroy(vhost_user_test_cleanup, server); @@ -682,11 +693,11 @@ static void *vhost_user_test_setup(GString *cmd_line, void *arg) static void *vhost_user_test_setup_memfd(GString *cmd_line, void *arg) { - TestServer *server = test_server_new("vhost-user-test"); + TestServer *server = test_server_new("vhost-user-test", arg); test_server_listen(server); append_mem_opts(server, cmd_line, 256, TEST_MEMFD_YES); - append_vhost_opts(server, cmd_line, ""); + server->vu_ops->append_opts(server, cmd_line, ""); g_test_queue_destroy(vhost_user_test_cleanup, server); @@ -720,7 +731,7 @@ static void test_migrate(void *obj, void *arg, QGuestAllocator *alloc) return; } - dest = test_server_new("dest"); + dest = test_server_new("dest", s->vu_ops); dest_cmdline = g_string_new(qos_get_current_command_line()); uri = g_strdup_printf("%s%s", "unix:", dest->mig_path); @@ -730,7 +741,7 @@ static void test_migrate(void *obj, void *arg, QGuestAllocator *alloc) test_server_listen(dest); g_string_append_printf(dest_cmdline, " -incoming %s", uri); append_mem_opts(dest, dest_cmdline, 256, TEST_MEMFD_AUTO); - append_vhost_opts(dest, dest_cmdline, ""); + dest->vu_ops->append_opts(dest, dest_cmdline, ""); to = qtest_init(dest_cmdline->str); /* This would be where you call qos_allocate_objects(to, NULL), if you want @@ -831,11 +842,11 @@ connect_thread(gpointer data) static void *vhost_user_test_setup_reconnect(GString *cmd_line, void *arg) { - TestServer *s = test_server_new("reconnect"); + TestServer *s = test_server_new("reconnect", arg); g_thread_new("connect", connect_thread, s); append_mem_opts(s, cmd_line, 256, TEST_MEMFD_AUTO); - append_vhost_opts(s, cmd_line, ",server"); + s->vu_ops->append_opts(s, cmd_line, ",server"); g_test_queue_destroy(vhost_user_test_cleanup, s); @@ -866,13 +877,13 @@ static void test_reconnect(void *obj, void *arg, QGuestAllocator *alloc) static void *vhost_user_test_setup_connect_fail(GString *cmd_line, void *arg) { - TestServer *s = test_server_new("connect-fail"); + TestServer *s = test_server_new("connect-fail", arg); s->test_fail = true; g_thread_new("connect", connect_thread, s); append_mem_opts(s, cmd_line, 256, TEST_MEMFD_AUTO); - append_vhost_opts(s, cmd_line, ",server"); + s->vu_ops->append_opts(s, cmd_line, ",server"); g_test_queue_destroy(vhost_user_test_cleanup, s); @@ -881,13 +892,13 @@ static void *vhost_user_test_setup_connect_fail(GString *cmd_line, void *arg) static void *vhost_user_test_setup_flags_mismatch(GString *cmd_line, void *arg) { - TestServer *s = test_server_new("flags-mismatch"); + TestServer *s = test_server_new("flags-mismatch", arg); s->test_flags = TEST_FLAGS_DISCONNECT; g_thread_new("connect", connect_thread, s); append_mem_opts(s, cmd_line, 256, TEST_MEMFD_AUTO); - append_vhost_opts(s, cmd_line, ",server"); + s->vu_ops->append_opts(s, cmd_line, ",server"); g_test_queue_destroy(vhost_user_test_cleanup, s); @@ -924,11 +935,47 @@ static void test_multiqueue(void *obj, void *arg, QGuestAllocator *alloc) wait_for_rings_started(s, s->queues * 2); } +static void vu_net_set_features(TestServer *s, CharBackend *chr, + VhostUserMsg *msg) +{ + g_assert_cmpint(msg->payload.u64 & + (0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES), !=, 0ULL); + if (s->test_flags == TEST_FLAGS_DISCONNECT) { + qemu_chr_fe_disconnect(chr); + s->test_flags = TEST_FLAGS_BAD; + } +} + +static void vu_net_get_protocol_features(TestServer *s, CharBackend *chr, + VhostUserMsg *msg) +{ + /* send back features to qemu */ + msg->flags |= VHOST_USER_REPLY_MASK; + msg->size = sizeof(m.payload.u64); + msg->payload.u64 = 1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD; + msg->payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_CROSS_ENDIAN; + if (s->queues > 1) { + msg->payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_MQ; + } + qemu_chr_fe_write_all(chr, (uint8_t *)msg, VHOST_USER_HDR_SIZE + msg->size); +} + +/* Each VHOST-USER device should have its ops structure defined. */ +static struct vhost_user_ops g_vu_net_ops = { + .type = VHOST_USER_NET, + + .append_opts = append_vhost_net_opts, + + .set_features = vu_net_set_features, + .get_protocol_features = vu_net_get_protocol_features, +}; + static void register_vhost_user_test(void) { QOSGraphTestOptions opts = { .before = vhost_user_test_setup, .subprocess = true, + .arg = &g_vu_net_ops, }; qemu_add_opts(&qemu_chardev_opts); From patchwork Mon Aug 31 09:27:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dima Stepanov X-Patchwork-Id: 11746019 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 592A0618 for ; Mon, 31 Aug 2020 09:31:56 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 2D97F206F0 for ; Mon, 31 Aug 2020 09:31:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=yandex-team.ru header.i=@yandex-team.ru header.b="SjXXhxVc" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2D97F206F0 Authentication-Results: mail.kernel.org; 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Mon, 31 Aug 2020 12:27:58 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (Client certificate not present) From: Dima Stepanov To: qemu-devel@nongnu.org Subject: [PATCH v3 4/7] tests/qtest/libqos/virtio-blk: add support for vhost-user-blk Date: Mon, 31 Aug 2020 12:27:20 +0300 Message-Id: <50d827a7b383de531ac1452e1e0ce3ad961d00af.1598865610.git.dimastep@yandex-team.ru> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Received-SPF: pass client-ip=77.88.29.217; envelope-from=dimastep@yandex-team.ru; helo=forwardcorp1p.mail.yandex.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/31 04:37:44 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, lvivier@redhat.com, thuth@redhat.com, qemu-block@nongnu.org, mst@redhat.com, jasowang@redhat.com, dgilbert@redhat.com, mreitz@redhat.com, fengli@smartx.com, yc-core@yandex-team.ru, pbonzini@redhat.com, raphael.norwitz@nutanix.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Add support for the vhost-user-blk-pci device. This node can be used by the vhost-user-blk tests. Tests for the vhost-user-blk device are added in the following patches. Signed-off-by: Dima Stepanov --- tests/qtest/libqos/virtio-blk.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tests/qtest/libqos/virtio-blk.c b/tests/qtest/libqos/virtio-blk.c index 5da0259..959c5dc 100644 --- a/tests/qtest/libqos/virtio-blk.c +++ b/tests/qtest/libqos/virtio-blk.c @@ -36,6 +36,9 @@ static void *qvirtio_blk_get_driver(QVirtioBlk *v_blk, if (!g_strcmp0(interface, "virtio")) { return v_blk->vdev; } + if (!g_strcmp0(interface, "vhost-user-blk")) { + return v_blk; + } fprintf(stderr, "%s not present in virtio-blk-device\n", interface); g_assert_not_reached(); @@ -120,6 +123,17 @@ static void virtio_blk_register_nodes(void) qos_node_produces("virtio-blk-pci", "virtio-blk"); g_free(arg); + + /* vhost-user-blk-pci */ + arg = g_strdup_printf("id=drv0,chardev=chdev0,addr=%x.%x", + PCI_SLOT, PCI_FN); + opts.extra_device_opts = arg; + add_qpci_address(&opts, &addr); + qos_node_create_driver("vhost-user-blk-pci", virtio_blk_pci_create); + qos_node_consumes("vhost-user-blk-pci", "pci-bus", &opts); + qos_node_produces("vhost-user-blk-pci", "vhost-user-blk"); + + g_free(arg); } libqos_init(virtio_blk_register_nodes); From patchwork Mon Aug 31 09:27:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dima Stepanov X-Patchwork-Id: 11746021 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 60AC513B6 for ; Mon, 31 Aug 2020 09:33:09 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 350EE206F0 for ; Mon, 31 Aug 2020 09:33:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=yandex-team.ru header.i=@yandex-team.ru header.b="AzcZ/nvz" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 350EE206F0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=yandex-team.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:60590 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kCgBY-000076-F1 for patchwork-qemu-devel@patchwork.kernel.org; Mon, 31 Aug 2020 05:33:08 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55684) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCg6f-0001h9-6D; Mon, 31 Aug 2020 05:28:05 -0400 Received: from forwardcorp1p.mail.yandex.net ([2a02:6b8:0:1472:2741:0:8b6:217]:59990) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCg6c-00050U-Nf; Mon, 31 Aug 2020 05:28:04 -0400 Received: from sas1-ec30c78b6c5b.qloud-c.yandex.net (sas1-ec30c78b6c5b.qloud-c.yandex.net [IPv6:2a02:6b8:c14:2704:0:640:ec30:c78b]) by forwardcorp1p.mail.yandex.net (Yandex) with ESMTP id 9B7D02E1590; Mon, 31 Aug 2020 12:28:00 +0300 (MSK) Received: from sas1-58a37b48fb94.qloud-c.yandex.net (sas1-58a37b48fb94.qloud-c.yandex.net [2a02:6b8:c08:1d1b:0:640:58a3:7b48]) by sas1-ec30c78b6c5b.qloud-c.yandex.net (mxbackcorp/Yandex) with ESMTP id 45x1D2M0zh-S0vWcq9M; Mon, 31 Aug 2020 12:28:00 +0300 Precedence: bulk DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1598866080; bh=EA8UlrwJ4T3+A1+f5nEwigpl9mpkIdyJ4H41e+r3I9M=; h=In-Reply-To:In-Reply-To:Message-Id:References:References:Date: Subject:To:From:Cc; b=AzcZ/nvzuKjY8BV2+DMrKj/+eaIHwZFMwLOD2XqFCuZW0m1/H6Hl0KZ4m5LD9hG97 y2AqHWsSv8lXEjEwU/uQyQJ2WyY+9uUTNxMdJr7Jup2PdY2sa/eB6KiChUlsp8sLKE 7uvnUiXulStRcaNx/zwZ9+jgw4LZFc7OQPH5dYEE= Authentication-Results: sas1-ec30c78b6c5b.qloud-c.yandex.net; dkim=pass header.i=@yandex-team.ru Received: from dynamic-vpn.dhcp.yndx.net (dynamic-vpn.dhcp.yndx.net [2a02:6b8:b081:216::1:a]) by sas1-58a37b48fb94.qloud-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id yaozkQMlmT-Rxm8Rtl8; Mon, 31 Aug 2020 12:28:00 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (Client certificate not present) From: Dima Stepanov To: qemu-devel@nongnu.org Subject: [PATCH v3 5/7] tests/qtest/vhost-user-test: add support for the vhost-user-blk device Date: Mon, 31 Aug 2020 12:27:21 +0300 Message-Id: <960720d82815926a648a3688bf6a38887eb0bf8e.1598865610.git.dimastep@yandex-team.ru> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Received-SPF: pass client-ip=2a02:6b8:0:1472:2741:0:8b6:217; envelope-from=dimastep@yandex-team.ru; helo=forwardcorp1p.mail.yandex.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/31 04:24:12 X-ACL-Warn: Detected OS = ??? X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, lvivier@redhat.com, thuth@redhat.com, qemu-block@nongnu.org, mst@redhat.com, jasowang@redhat.com, dgilbert@redhat.com, mreitz@redhat.com, fengli@smartx.com, yc-core@yandex-team.ru, pbonzini@redhat.com, raphael.norwitz@nutanix.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Add vhost_user_ops structure for the vhost-user-blk device class. Add the test_reconnect and test_migrate tests for this device. Signed-off-by: Dima Stepanov --- tests/qtest/vhost-user-test.c | 139 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 137 insertions(+), 2 deletions(-) diff --git a/tests/qtest/vhost-user-test.c b/tests/qtest/vhost-user-test.c index 3df5322..a8af613 100644 --- a/tests/qtest/vhost-user-test.c +++ b/tests/qtest/vhost-user-test.c @@ -24,6 +24,7 @@ #include "libqos/libqos.h" #include "libqos/pci-pc.h" #include "libqos/virtio-pci.h" +#include "libqos/virtio-blk.h" #include "libqos/malloc-pc.h" #include "hw/virtio/virtio-net.h" @@ -31,6 +32,7 @@ #include "standard-headers/linux/vhost_types.h" #include "standard-headers/linux/virtio_ids.h" #include "standard-headers/linux/virtio_net.h" +#include "standard-headers/linux/virtio_blk.h" #ifdef CONFIG_LINUX #include @@ -43,6 +45,7 @@ " -numa node,memdev=mem" #define QEMU_CMD_CHR " -chardev socket,id=%s,path=%s%s" #define QEMU_CMD_NETDEV " -netdev vhost-user,id=hs0,chardev=%s,vhostforce" +#define QEMU_CMD_BLKCHR " -chardev socket,id=chdev0,path=%s%s" #define HUGETLBFS_MAGIC 0x958458f6 @@ -55,6 +58,7 @@ #define VHOST_USER_PROTOCOL_F_MQ 0 #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1 #define VHOST_USER_PROTOCOL_F_CROSS_ENDIAN 6 +#define VHOST_USER_PROTOCOL_F_CONFIG 9 #define VHOST_LOG_PAGE 0x1000 @@ -78,6 +82,8 @@ typedef enum VhostUserRequest { VHOST_USER_SET_PROTOCOL_FEATURES = 16, VHOST_USER_GET_QUEUE_NUM = 17, VHOST_USER_SET_VRING_ENABLE = 18, + VHOST_USER_GET_CONFIG = 24, + VHOST_USER_SET_CONFIG = 25, VHOST_USER_MAX } VhostUserRequest; @@ -99,6 +105,14 @@ typedef struct VhostUserLog { uint64_t mmap_offset; } VhostUserLog; +#define VHOST_USER_MAX_CONFIG_SIZE 256 +typedef struct VhostUserConfig { + uint32_t offset; + uint32_t size; + uint32_t flags; + uint8_t region[VHOST_USER_MAX_CONFIG_SIZE]; +} VhostUserConfig; + typedef struct VhostUserMsg { VhostUserRequest request; @@ -114,6 +128,7 @@ typedef struct VhostUserMsg { struct vhost_vring_addr addr; VhostUserMemory memory; VhostUserLog log; + VhostUserConfig config; } payload; } QEMU_PACKED VhostUserMsg; @@ -137,6 +152,7 @@ enum { enum { VHOST_USER_NET, + VHOST_USER_BLK, }; typedef struct TestServer { @@ -166,12 +182,15 @@ struct vhost_user_ops { int type; void (*append_opts)(TestServer *s, GString *cmd_line, const char *chr_opts); + void (*driver_init)(void *obj, QGuestAllocator *alloc); /* VHOST-USER commands. */ void (*set_features)(TestServer *s, CharBackend *chr, VhostUserMsg *msg); void (*get_protocol_features)(TestServer *s, CharBackend *chr, VhostUserMsg *msg); + void (*get_config)(TestServer *s, CharBackend *chr, + VhostUserMsg *msg); }; static const char *init_hugepagefs(void); @@ -194,6 +213,14 @@ static void append_vhost_net_opts(TestServer *s, GString *cmd_line, chr_opts, s->chr_name); } +static void append_vhost_blk_opts(TestServer *s, GString *cmd_line, + const char *chr_opts) +{ + g_string_append_printf(cmd_line, QEMU_CMD_BLKCHR, + s->socket_path, + chr_opts); +} + static void append_mem_opts(TestServer *server, GString *cmd_line, int size, enum test_memfd memfd) { @@ -425,6 +452,12 @@ static void chr_read(void *opaque, const uint8_t *buf, int size) qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size); break; + case VHOST_USER_GET_CONFIG: + if (s->vu_ops->get_config) { + s->vu_ops->get_config(s, chr, &msg); + } + break; + default: break; } @@ -727,6 +760,9 @@ static void test_migrate(void *obj, void *arg, QGuestAllocator *alloc) guint8 *log; guint64 size; + if (s->vu_ops->driver_init) { + s->vu_ops->driver_init(obj, alloc); + } if (!wait_for_fds(s)) { return; } @@ -796,6 +832,24 @@ static void test_migrate(void *obj, void *arg, QGuestAllocator *alloc) g_string_free(dest_cmdline, true); } +static void vu_blk_driver_init(void *obj, QGuestAllocator *alloc) +{ + QVirtioBlk *blk_if; + QVirtioDevice *dev; + QVirtQueue *vq; + uint64_t features; + + blk_if = obj; + dev = blk_if->vdev; + features = qvirtio_get_features(dev); + qvirtio_set_features(dev, features); + + vq = qvirtqueue_setup(dev, alloc, 0); + g_assert(vq); + + qvirtio_set_driver_ok(dev); +} + static void wait_for_rings_started(TestServer *s, size_t count) { gint64 end_time; @@ -857,12 +911,21 @@ static void test_reconnect(void *obj, void *arg, QGuestAllocator *alloc) { TestServer *s = arg; GSource *src; + int nq; + if (s->vu_ops->driver_init) { + s->vu_ops->driver_init(obj, alloc); + } if (!wait_for_fds(s)) { return; } - wait_for_rings_started(s, 2); + nq = 1; + if (s->vu_ops->type == VHOST_USER_NET) { + /* tx and rx queues */ + nq = 2; + } + wait_for_rings_started(s, nq); /* reconnect */ s->fds_num = 0; @@ -872,7 +935,7 @@ static void test_reconnect(void *obj, void *arg, QGuestAllocator *alloc) g_source_attach(src, s->context); g_source_unref(src); g_assert(wait_for_fds(s)); - wait_for_rings_started(s, 2); + wait_for_rings_started(s, nq); } static void *vhost_user_test_setup_connect_fail(GString *cmd_line, void *arg) @@ -960,6 +1023,56 @@ static void vu_net_get_protocol_features(TestServer *s, CharBackend *chr, qemu_chr_fe_write_all(chr, (uint8_t *)msg, VHOST_USER_HDR_SIZE + msg->size); } +static void vu_blk_set_features(TestServer *s, CharBackend *chr, + VhostUserMsg *msg) +{ + if (s->test_flags == TEST_FLAGS_DISCONNECT) { + qemu_chr_fe_disconnect(chr); + s->test_flags = TEST_FLAGS_BAD; + } +} + +static void vu_blk_get_protocol_features(TestServer *s, + CharBackend *chr, VhostUserMsg *msg) +{ + /* send back features to qemu */ + msg->flags |= VHOST_USER_REPLY_MASK; + msg->size = sizeof(m.payload.u64); + msg->payload.u64 = 1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD; + msg->payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_CONFIG; + if (s->queues > 1) { + msg->payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_MQ; + } + qemu_chr_fe_write_all(chr, (uint8_t *)msg, VHOST_USER_HDR_SIZE + msg->size); +} + +static void vu_blk_get_config(TestServer *s, CharBackend *chr, + VhostUserMsg *msg) +{ + VhostUserConfig *config; + struct virtio_blk_config *blk_config; + + config = &msg->payload.config; + memset(config, 0, sizeof(*config)); + config->size = sizeof(*blk_config); + + blk_config = (struct virtio_blk_config *)&config->region; + /* + * Represent 128Mb test disk, with no real backend, just + * to test vhost-user functionality. + */ + blk_config->capacity = 262144; + blk_config->size_max = 0x20000; + blk_config->seg_max = 0x7e; + blk_config->blk_size = 512; + blk_config->min_io_size = 0x1; + blk_config->num_queues = 0x1; + + msg->size = sizeof(*config) - sizeof(config->region) + config->size; + msg->flags |= VHOST_USER_REPLY_MASK; + qemu_chr_fe_write_all(chr, (uint8_t *)msg, VHOST_USER_HDR_SIZE + msg->size); +} + /* Each VHOST-USER device should have its ops structure defined. */ static struct vhost_user_ops g_vu_net_ops = { .type = VHOST_USER_NET, @@ -970,6 +1083,17 @@ static struct vhost_user_ops g_vu_net_ops = { .get_protocol_features = vu_net_get_protocol_features, }; +static struct vhost_user_ops g_vu_blk_ops = { + .type = VHOST_USER_BLK, + + .append_opts = append_vhost_blk_opts, + .driver_init = vu_blk_driver_init, + + .set_features = vu_blk_set_features, + .get_protocol_features = vu_blk_get_protocol_features, + .get_config = vu_blk_get_config, +}; + static void register_vhost_user_test(void) { QOSGraphTestOptions opts = { @@ -1015,5 +1139,16 @@ static void register_vhost_user_test(void) qos_add_test("vhost-user/multiqueue", "virtio-net", test_multiqueue, &opts); + opts.edge.extra_device_opts = NULL; + + /* vhost-user-blk tests */ + opts.arg = &g_vu_blk_ops; + opts.before = vhost_user_test_setup_reconnect; + qos_add_test("reconnect", "vhost-user-blk", + test_reconnect, &opts); + + opts.before = vhost_user_test_setup_memfd; + qos_add_test("migrate", "vhost-user-blk", + test_migrate, &opts); } libqos_init(register_vhost_user_test); From patchwork Mon Aug 31 09:27:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dima Stepanov X-Patchwork-Id: 11746023 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B42991709 for ; 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dkim=pass header.i=@yandex-team.ru Received: from dynamic-vpn.dhcp.yndx.net (dynamic-vpn.dhcp.yndx.net [2a02:6b8:b081:216::1:a]) by sas1-58a37b48fb94.qloud-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id yaozkQMlmT-S1m8VtUD; Mon, 31 Aug 2020 12:28:01 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (Client certificate not present) From: Dima Stepanov To: qemu-devel@nongnu.org Subject: [PATCH v3 6/7] tests/qtest/vhost-user-test: add migrate_reconnect test Date: Mon, 31 Aug 2020 12:27:22 +0300 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Received-SPF: pass client-ip=95.108.205.193; envelope-from=dimastep@yandex-team.ru; helo=forwardcorp1o.mail.yandex.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/31 05:28:02 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, lvivier@redhat.com, thuth@redhat.com, qemu-block@nongnu.org, mst@redhat.com, jasowang@redhat.com, dgilbert@redhat.com, mreitz@redhat.com, fengli@smartx.com, yc-core@yandex-team.ru, pbonzini@redhat.com, raphael.norwitz@nutanix.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Add new migrate_reconnect test for the vhost-user-blk device. Perform a disconnect after sending response for the VHOST_USER_SET_LOG_BASE command. Signed-off-by: Dima Stepanov --- tests/qtest/vhost-user-test.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/tests/qtest/vhost-user-test.c b/tests/qtest/vhost-user-test.c index a8af613..4b715d3 100644 --- a/tests/qtest/vhost-user-test.c +++ b/tests/qtest/vhost-user-test.c @@ -146,6 +146,7 @@ static VhostUserMsg m __attribute__ ((unused)); enum { TEST_FLAGS_OK, TEST_FLAGS_DISCONNECT, + TEST_FLAGS_MIGRATE_DISCONNECT, TEST_FLAGS_BAD, TEST_FLAGS_END, }; @@ -436,6 +437,15 @@ static void chr_read(void *opaque, const uint8_t *buf, int size) qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE); g_cond_broadcast(&s->data_cond); + /* + * Perform disconnect after sending a response. In this + * case the next write command on the QEMU side (for now + * it is SET_FEATURES will return -1, because of disconnect. + */ + if (s->test_flags == TEST_FLAGS_MIGRATE_DISCONNECT) { + qemu_chr_fe_disconnect(chr); + s->test_flags = TEST_FLAGS_BAD; + } break; case VHOST_USER_SET_VRING_BASE: @@ -737,6 +747,17 @@ static void *vhost_user_test_setup_memfd(GString *cmd_line, void *arg) return server; } +static void *vhost_user_test_setup_migrate_reconnect(GString *cmd_line, + void *arg) +{ + TestServer *server; + + server = vhost_user_test_setup_memfd(cmd_line, arg); + server->test_flags = TEST_FLAGS_MIGRATE_DISCONNECT; + + return server; +} + static void test_read_guest_mem(void *obj, void *arg, QGuestAllocator *alloc) { TestServer *server = arg; @@ -1150,5 +1171,9 @@ static void register_vhost_user_test(void) opts.before = vhost_user_test_setup_memfd; qos_add_test("migrate", "vhost-user-blk", test_migrate, &opts); + + opts.before = vhost_user_test_setup_migrate_reconnect; + qos_add_test("migrate_reconnect", "vhost-user-blk", + test_migrate, &opts); } libqos_init(register_vhost_user_test); From patchwork Mon Aug 31 09:27:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dima Stepanov X-Patchwork-Id: 11746015 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0C29A618 for ; Mon, 31 Aug 2020 09:31:20 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id D267A206F0 for ; Mon, 31 Aug 2020 09:31:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=yandex-team.ru header.i=@yandex-team.ru header.b="A+RUBWRm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D267A206F0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=yandex-team.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:56100 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kCg9m-0006er-HI for patchwork-qemu-devel@patchwork.kernel.org; Mon, 31 Aug 2020 05:31:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55714) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCg6i-0001p5-3g; Mon, 31 Aug 2020 05:28:08 -0400 Received: from forwardcorp1o.mail.yandex.net ([2a02:6b8:0:1a2d::193]:40616) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCg6g-00050w-4C; Mon, 31 Aug 2020 05:28:07 -0400 Received: from sas1-ec30c78b6c5b.qloud-c.yandex.net (sas1-ec30c78b6c5b.qloud-c.yandex.net [IPv6:2a02:6b8:c14:2704:0:640:ec30:c78b]) by forwardcorp1o.mail.yandex.net (Yandex) with ESMTP id 4631A2E1752; Mon, 31 Aug 2020 12:28:04 +0300 (MSK) Received: from sas1-58a37b48fb94.qloud-c.yandex.net (sas1-58a37b48fb94.qloud-c.yandex.net [2a02:6b8:c08:1d1b:0:640:58a3:7b48]) by sas1-ec30c78b6c5b.qloud-c.yandex.net (mxbackcorp/Yandex) with ESMTP id t8pPA2lpZk-S3vGTJ9j; Mon, 31 Aug 2020 12:28:04 +0300 Precedence: bulk DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1598866084; bh=q/BEie8WWdulCQ+K3Z9sfH9Ao00pTgDfrRPfxe/FziU=; h=In-Reply-To:In-Reply-To:Message-Id:References:References:Date: Subject:To:From:Cc; b=A+RUBWRmPpoOPbcH489bv4wTKKdCdf5YLSxuNPIHEfaHFUAQ9MtqyuN+y5T0zY2vv 8AEL940BrcwYxypx6Sepu8X4f9dzpz9wakvljv9ilWRM7K+nFVHxOxhXDKRnxxja/I 2K/ub1tgVvMVPk1y+WyRWVEkIH66AO1VbDA+lg+4= Authentication-Results: sas1-ec30c78b6c5b.qloud-c.yandex.net; dkim=pass header.i=@yandex-team.ru Received: from dynamic-vpn.dhcp.yndx.net (dynamic-vpn.dhcp.yndx.net [2a02:6b8:b081:216::1:a]) by sas1-58a37b48fb94.qloud-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id yaozkQMlmT-S3m8NKJw; Mon, 31 Aug 2020 12:28:03 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (Client certificate not present) From: Dima Stepanov To: qemu-devel@nongnu.org Subject: [PATCH v3 7/7] tests/qtest/vhost-user-test: enable the reconnect tests Date: Mon, 31 Aug 2020 12:27:23 +0300 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Received-SPF: pass client-ip=2a02:6b8:0:1a2d::193; envelope-from=dimastep@yandex-team.ru; helo=forwardcorp1o.mail.yandex.net X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, lvivier@redhat.com, thuth@redhat.com, qemu-block@nongnu.org, mst@redhat.com, jasowang@redhat.com, dgilbert@redhat.com, mreitz@redhat.com, fengli@smartx.com, yc-core@yandex-team.ru, pbonzini@redhat.com, raphael.norwitz@nutanix.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" For now a QTEST_VHOST_USER_FIXME environment variable is used to separate reconnect tests for the vhost-user-net device. Looks like the reconnect functionality is pretty stable, so this separation is deprecated. Remove it and enable these tests for the default run. Signed-off-by: Dima Stepanov --- tests/qtest/vhost-user-test.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/tests/qtest/vhost-user-test.c b/tests/qtest/vhost-user-test.c index 4b715d3..4b96312 100644 --- a/tests/qtest/vhost-user-test.c +++ b/tests/qtest/vhost-user-test.c @@ -1140,20 +1140,17 @@ static void register_vhost_user_test(void) "virtio-net", test_migrate, &opts); - /* keeps failing on build-system since Aug 15 2017 */ - if (getenv("QTEST_VHOST_USER_FIXME")) { - opts.before = vhost_user_test_setup_reconnect; - qos_add_test("vhost-user/reconnect", "virtio-net", - test_reconnect, &opts); - - opts.before = vhost_user_test_setup_connect_fail; - qos_add_test("vhost-user/connect-fail", "virtio-net", - test_vhost_user_started, &opts); - - opts.before = vhost_user_test_setup_flags_mismatch; - qos_add_test("vhost-user/flags-mismatch", "virtio-net", - test_vhost_user_started, &opts); - } + opts.before = vhost_user_test_setup_reconnect; + qos_add_test("vhost-user/reconnect", "virtio-net", + test_reconnect, &opts); + + opts.before = vhost_user_test_setup_connect_fail; + qos_add_test("vhost-user/connect-fail", "virtio-net", + test_vhost_user_started, &opts); + + opts.before = vhost_user_test_setup_flags_mismatch; + qos_add_test("vhost-user/flags-mismatch", "virtio-net", + test_vhost_user_started, &opts); opts.before = vhost_user_test_setup_multiqueue; opts.edge.extra_device_opts = "mq=on";