From patchwork Tue Nov 22 14:07:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: zhenwei pi X-Patchwork-Id: 13052413 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id E57B6C4332F for ; Tue, 22 Nov 2022 14:07:17 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oxTtu-0000Gl-6h; Tue, 22 Nov 2022 09:05:26 -0500 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 1oxTtg-00004s-Fo for qemu-devel@nongnu.org; Tue, 22 Nov 2022 09:05:13 -0500 Received: from mail-pl1-x62d.google.com ([2607:f8b0:4864:20::62d]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oxTte-0006Gr-0P for qemu-devel@nongnu.org; Tue, 22 Nov 2022 09:05:12 -0500 Received: by mail-pl1-x62d.google.com with SMTP id j12so13727107plj.5 for ; Tue, 22 Nov 2022 06:05:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=R2pIUNNN/Jr1yOhRff9xNPmA2IUQiWkT9SHme9njJhc=; b=y3sjtUrq3rQCSpmpbtOJJu20CB3fUYSQg+EImHCgOth0yfLKTAn/ua2I7QBAmuStBv p3GK1RDD7R/OsVb8MNDuDHY0DzgqdDhp1XNpUExUdkZngFmjXK2jDxp6Zf+0VDMTGSX4 3FR/wLxQwQwrDr1NjSIuYTY/jq11S6Xh+iCbxL9ISFE8Y1fNF5BPHUy8wORfqUg23j8y 87cWb1IFy2i0c0//+cNKi60aldE/b/WnSLiexSDJrW2F9BijGWVj23Go/t1MIPsQEjyG 29ETivY7y3gcq0HfejHtcPCXycJgCo94No2rorvAv6uBSDp0q5cfPp4+EhO1CBjCBlVm gvSA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=R2pIUNNN/Jr1yOhRff9xNPmA2IUQiWkT9SHme9njJhc=; b=XJvdfXg9JpsMNxe8KN+Cu/Lg4fmC2pLWKxOHEv+Tyf36K3agDYuntv0zk6ETqw83rw z9oRZR0PZ6v5gLyO0lKYpqMAGORY8QPzRF1gKxFOs+03NpdpbGOLwt//guEdI518VNXj Z1Oo34Py81g7PBLz//X5d6St7y3XONUwZX14OExKBDUQ3jXBnyF04E4boSIv8Nxw/qSE zAuqYfjGJgXfbZKya864NovBVWEFIDnhEk99BiPwP0t/J9RlKg9CopFN7Y0e5tgFt/ie q0vjDP1e6/p8t0qn42MZlHJspx4nqqPgAE8m3bqw4Eh9SswEnocvNdEM46RnzG8eDCuL Dv5w== X-Gm-Message-State: ANoB5plegsl/KaDQ6Sl//h3bAsHohKKCpsBtE/yfCpMY5Kup+Sj7VKRr TLkBOG+ukDEUdjVWG1t3FReRmQ== X-Google-Smtp-Source: AA0mqf7iE5JNEk1UjSkq6DAmTmSblFRUrPfmGj25ZRJHI4doave0hiWkLlD0N8wXm1VuTxeHXYhGYg== X-Received: by 2002:a17:902:cf08:b0:188:e49e:2657 with SMTP id i8-20020a170902cf0800b00188e49e2657mr8468845plg.151.1669125908606; Tue, 22 Nov 2022 06:05:08 -0800 (PST) Received: from always-T480.www.tendawifi.com ([139.177.225.252]) by smtp.gmail.com with ESMTPSA id p1-20020a170902e74100b00186b280a441sm12097410plf.239.2022.11.22.06.05.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Nov 2022 06:05:08 -0800 (PST) From: zhenwei pi To: arei.gonglei@huawei.com, mst@redhat.com, dgilbert@redhat.com, eblake@redhat.com, armbru@redhat.com, michael.roth@amd.com, pbonzini@redhat.com Cc: qemu-devel@nongnu.org, zhenwei pi Subject: [for-8.0 v2 10/11] cryptodev: support QoS Date: Tue, 22 Nov 2022 22:07:55 +0800 Message-Id: <20221122140756.686982-11-pizhenwei@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221122140756.686982-1-pizhenwei@bytedance.com> References: <20221122140756.686982-1-pizhenwei@bytedance.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::62d; envelope-from=pizhenwei@bytedance.com; helo=mail-pl1-x62d.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 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add 'throttle-bps' and 'throttle-ops' limitation to set QoS. The two arguments work with both QEMU command line and QMP command. Example of QEMU command line: -object cryptodev-backend-builtin,id=cryptodev1,throttle-bps=1600,\ throttle-ops=100 Example of QMP command: virsh qemu-monitor-command buster --hmp qom-set /objects/cryptodev1 \ throttle-ops 100 or cancel limitation: virsh qemu-monitor-command buster --hmp qom-set /objects/cryptodev1 \ throttle-ops 0 Signed-off-by: zhenwei pi --- backends/cryptodev.c | 140 +++++++++++++++++++++++++++++++++++++ include/sysemu/cryptodev.h | 7 ++ qapi/qom.json | 8 ++- 3 files changed, 154 insertions(+), 1 deletion(-) diff --git a/backends/cryptodev.c b/backends/cryptodev.c index 72105df95a..5bbaa6eecc 100644 --- a/backends/cryptodev.c +++ b/backends/cryptodev.c @@ -28,6 +28,7 @@ #include "qapi/visitor.h" #include "qemu/config-file.h" #include "qemu/error-report.h" +#include "qemu/main-loop.h" #include "qom/object_interfaces.h" #include "hw/virtio/virtio-crypto.h" @@ -219,16 +220,54 @@ static int cryptodev_backend_account(CryptoDevBackend *backend, return len; } +static void cryptodev_backend_throttle_timer_cb(void *opaque) +{ + CryptoDevBackend *backend = (CryptoDevBackend *)opaque; + CryptoDevBackendOpInfo *op_info, *tmpop; + int ret; + + QTAILQ_FOREACH_SAFE(op_info, &backend->opinfos, next, tmpop) { + QTAILQ_REMOVE(&backend->opinfos, op_info, next); + ret = cryptodev_backend_account(backend, op_info); + if (ret < 0) { + op_info->cb(op_info->opaque, ret); + continue; + } + + throttle_account(&backend->ts, true, ret); + cryptodev_backend_operation(backend, op_info); + if (throttle_enabled(&backend->tc) && + throttle_schedule_timer(&backend->ts, &backend->tt, true)) { + break; + } + } +} + int cryptodev_backend_crypto_operation( CryptoDevBackend *backend, CryptoDevBackendOpInfo *op_info) { int ret; + if (!throttle_enabled(&backend->tc)) { + ret = cryptodev_backend_account(backend, op_info); + if (ret < 0) { + return ret; + } + return cryptodev_backend_operation(backend, op_info); + } + + if (throttle_schedule_timer(&backend->ts, &backend->tt, true) || + !QTAILQ_EMPTY(&backend->opinfos)) { + QTAILQ_INSERT_TAIL(&backend->opinfos, op_info, next); + return 0; + } + ret = cryptodev_backend_account(backend, op_info); if (ret < 0) { return ret; } + throttle_account(&backend->ts, true, ret); return cryptodev_backend_operation(backend, op_info); } @@ -260,12 +299,98 @@ cryptodev_backend_set_queues(Object *obj, Visitor *v, const char *name, backend->conf.peers.queues = value; } +static void cryptodev_backend_set_throttle(CryptoDevBackend *backend, int field, + uint64_t value, Error **errp) +{ + uint64_t orig = backend->tc.buckets[field].avg; + bool enabled = throttle_enabled(&backend->tc); + + if (orig == value) { + return; + } + + backend->tc.buckets[field].avg = value; + if (!throttle_enabled(&backend->tc)) { + throttle_timers_destroy(&backend->tt); + cryptodev_backend_throttle_timer_cb(backend); /* drain opinfos */ + return; + } + + if (!throttle_is_valid(&backend->tc, errp)) { + backend->tc.buckets[field].avg = orig; /* revert change */ + return; + } + + if (!enabled) { + throttle_init(&backend->ts); + throttle_timers_init(&backend->tt, qemu_get_aio_context(), + QEMU_CLOCK_REALTIME, + cryptodev_backend_throttle_timer_cb, /* FIXME */ + cryptodev_backend_throttle_timer_cb, backend); + } + + throttle_config(&backend->ts, QEMU_CLOCK_REALTIME, &backend->tc); +} + +static void cryptodev_backend_get_bps(Object *obj, Visitor *v, + const char *name, void *opaque, + Error **errp) +{ + CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj); + uint64_t value = backend->tc.buckets[THROTTLE_BPS_TOTAL].avg; + + visit_type_uint64(v, name, &value, errp); +} + +static void cryptodev_backend_set_bps(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj); + uint64_t value; + + if (!visit_type_uint64(v, name, &value, errp)) { + return; + } + + cryptodev_backend_set_throttle(backend, THROTTLE_BPS_TOTAL, value, errp); +} + +static void cryptodev_backend_get_ops(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj); + uint64_t value = backend->tc.buckets[THROTTLE_OPS_TOTAL].avg; + + visit_type_uint64(v, name, &value, errp); +} + +static void cryptodev_backend_set_ops(Object *obj, Visitor *v, + const char *name, void *opaque, + Error **errp) +{ + CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj); + uint64_t value; + + if (!visit_type_uint64(v, name, &value, errp)) { + return; + } + + cryptodev_backend_set_throttle(backend, THROTTLE_OPS_TOTAL, value, errp); +} + static void cryptodev_backend_complete(UserCreatable *uc, Error **errp) { CryptoDevBackend *backend = CRYPTODEV_BACKEND(uc); CryptoDevBackendClass *bc = CRYPTODEV_BACKEND_GET_CLASS(uc); uint32_t services; + uint64_t value; + + QTAILQ_INIT(&backend->opinfos); + value = backend->tc.buckets[THROTTLE_OPS_TOTAL].avg; + cryptodev_backend_set_throttle(backend, THROTTLE_OPS_TOTAL, value, errp); + value = backend->tc.buckets[THROTTLE_BPS_TOTAL].avg; + cryptodev_backend_set_throttle(backend, THROTTLE_BPS_TOTAL, value, errp); if (bc->init) { bc->init(backend, errp); @@ -309,8 +434,12 @@ cryptodev_backend_can_be_deleted(UserCreatable *uc) static void cryptodev_backend_instance_init(Object *obj) { + CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj); + /* Initialize devices' queues property to 1 */ object_property_set_int(obj, "queues", 1, NULL); + + throttle_config_init(&backend->tc); } static void cryptodev_backend_finalize(Object *obj) @@ -318,6 +447,9 @@ static void cryptodev_backend_finalize(Object *obj) CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj); cryptodev_backend_cleanup(backend, NULL); + if (throttle_enabled(&backend->tc)) { + throttle_timers_destroy(&backend->tt); + } } static void @@ -333,6 +465,14 @@ cryptodev_backend_class_init(ObjectClass *oc, void *data) cryptodev_backend_get_queues, cryptodev_backend_set_queues, NULL, NULL); + object_class_property_add(oc, "throttle-bps", "uint64", + cryptodev_backend_get_bps, + cryptodev_backend_set_bps, + NULL, NULL); + object_class_property_add(oc, "throttle-ops", "uint64", + cryptodev_backend_get_ops, + cryptodev_backend_set_ops, + NULL, NULL); } static const TypeInfo cryptodev_backend_info = { diff --git a/include/sysemu/cryptodev.h b/include/sysemu/cryptodev.h index ffbce1129c..3382b45c1a 100644 --- a/include/sysemu/cryptodev.h +++ b/include/sysemu/cryptodev.h @@ -24,6 +24,7 @@ #define CRYPTODEV_H #include "qemu/queue.h" +#include "qemu/throttle.h" #include "qom/object.h" #include "qapi/qapi-types-cryptodev.h" @@ -187,6 +188,7 @@ typedef struct CryptoDevBackendOpInfo { CryptoDevBackendSymOpInfo *sym_op_info; CryptoDevBackendAsymOpInfo *asym_op_info; } u; + QTAILQ_ENTRY(CryptoDevBackendOpInfo) next; } CryptoDevBackendOpInfo; struct CryptoDevBackendClass { @@ -255,6 +257,11 @@ struct CryptoDevBackend { CryptoDevBackendConf conf; QCryptodevBackendSymStat *sym_stat; QCryptodevBackendAsymStat *asym_stat; + + ThrottleState ts; + ThrottleTimers tt; + ThrottleConfig tc; + QTAILQ_HEAD(, CryptoDevBackendOpInfo) opinfos; }; #define QCryptodevSymStatInc(be, op, bytes) do { \ diff --git a/qapi/qom.json b/qapi/qom.json index 30e76653ad..a877b879b9 100644 --- a/qapi/qom.json +++ b/qapi/qom.json @@ -278,10 +278,16 @@ # cryptodev-backend and must be 1 for cryptodev-backend-builtin. # (default: 1) # +# @throttle-bps: limit total bytes per second (Since 8.0) +# +# @throttle-ops: limit total operations per second (Since 8.0) +# # Since: 2.8 ## { 'struct': 'CryptodevBackendProperties', - 'data': { '*queues': 'uint32' } } + 'data': { '*queues': 'uint32', + '*throttle-bps': 'uint64', + '*throttle-ops': 'uint64' } } ## # @CryptodevVhostUserProperties: