From nobody Mon Nov 25 07:59:25 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=movementarian.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1717000073625423.5443890020383; Wed, 29 May 2024 09:27:53 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sCM7Z-00024e-BM; Wed, 29 May 2024 12:25:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sCM76-0001IZ-GW for qemu-devel@nongnu.org; Wed, 29 May 2024 12:25:23 -0400 Received: from ssh.movementarian.org ([139.162.205.133] helo=movementarian.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sCM74-0006Np-EL for qemu-devel@nongnu.org; Wed, 29 May 2024 12:25:19 -0400 Received: from movement by movementarian.org with local (Exim 4.95) (envelope-from ) id 1sCM6t-006CRE-4c; Wed, 29 May 2024 17:25:07 +0100 From: John Levon To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, jag.raman@oracle.com, thanos.makatos@nutanix.com, John Johnson , Elena Ufimtseva , John Levon Subject: [PATCH 25/26] vfio-user: add 'x-msg-timeout' option that specifies msg wait times Date: Wed, 29 May 2024 17:23:18 +0100 Message-Id: <20240529162319.1476680-26-levon@movementarian.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240529162319.1476680-1-levon@movementarian.org> References: <20240529162319.1476680-1-levon@movementarian.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=139.162.205.133; envelope-from=movement@movementarian.org; helo=movementarian.org 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, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1717000074968100009 Content-Type: text/plain; charset="utf-8" From: Jagannathan Raman Originally-by: John Johnson Signed-off-by: Elena Ufimtseva Signed-off-by: Jagannathan Raman Signed-off-by: John Levon --- hw/vfio/user-pci.c | 4 ++++ hw/vfio/user.c | 7 ++++--- hw/vfio/user.h | 1 + 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/hw/vfio/user-pci.c b/hw/vfio/user-pci.c index b473cbc404..b70aeb6ee3 100644 --- a/hw/vfio/user-pci.c +++ b/hw/vfio/user-pci.c @@ -43,6 +43,7 @@ struct VFIOUserPCIDevice { bool no_direct_dma; /* disable shared mem for DMA */ bool send_queued; /* all sends are queued */ bool no_post; /* all regions write are sync */ + uint32_t wait_time; /* timeout for message replies */ }; =20 /* @@ -278,6 +279,8 @@ static void vfio_user_pci_realize(PCIDevice *pdev, Erro= r **errp) if (udev->no_post) { proxy->flags |=3D VFIO_PROXY_NO_POST; } + /* user specified or 5 sec default */ + proxy->wait_time =3D udev->wait_time; =20 if (!vfio_user_validate_version(proxy, errp)) { goto error; @@ -408,6 +411,7 @@ static Property vfio_user_pci_dev_properties[] =3D { DEFINE_PROP_BOOL("no-direct-dma", VFIOUserPCIDevice, no_direct_dma, fa= lse), DEFINE_PROP_BOOL("x-send-queued", VFIOUserPCIDevice, send_queued, fals= e), DEFINE_PROP_BOOL("x-no-posted-writes", VFIOUserPCIDevice, no_post, fal= se), + DEFINE_PROP_UINT32("x-msg-timeout", VFIOUserPCIDevice, wait_time, 5000= ), DEFINE_PROP_END_OF_LIST(), }; =20 diff --git a/hw/vfio/user.c b/hw/vfio/user.c index 3a38aa5543..f13381f310 100644 --- a/hw/vfio/user.c +++ b/hw/vfio/user.c @@ -43,7 +43,6 @@ #define VFIO_USER_MAX_REGIONS 100 #define VFIO_USER_MAX_IRQS 50 =20 -static int wait_time =3D 5000; /* wait up to 5 sec for busy servers */ static IOThread *vfio_user_iothread; =20 static void vfio_user_shutdown(VFIOUserProxy *proxy); @@ -723,7 +722,8 @@ void vfio_user_send_wait(VFIOUserProxy *proxy, VFIOUser= Hdr *hdr, =20 if (ret =3D=3D 0) { while (!msg->complete) { - if (!qemu_cond_timedwait(&msg->cv, &proxy->lock, wait_time)) { + if (!qemu_cond_timedwait(&msg->cv, &proxy->lock, + proxy->wait_time)) { VFIOUserMsgQ *list; =20 list =3D msg->pending ? &proxy->pending : &proxy->outgoing; @@ -766,7 +766,8 @@ void vfio_user_wait_reqs(VFIOUserProxy *proxy) msg->type =3D VFIO_MSG_WAIT; proxy->last_nowait =3D NULL; while (!msg->complete) { - if (!qemu_cond_timedwait(&msg->cv, &proxy->lock, wait_time)) { + if (!qemu_cond_timedwait(&msg->cv, &proxy->lock, + proxy->wait_time)) { VFIOUserMsgQ *list; =20 list =3D msg->pending ? &proxy->pending : &proxy->outgoing; diff --git a/hw/vfio/user.h b/hw/vfio/user.h index d9aa1759df..ff2aa005eb 100644 --- a/hw/vfio/user.h +++ b/hw/vfio/user.h @@ -72,6 +72,7 @@ typedef struct VFIOUserProxy { uint64_t max_bitmap; uint64_t migr_pgsize; int flags; + uint32_t wait_time; QemuCond close_cv; AioContext *ctx; QEMUBH *req_bh; --=20 2.34.1