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Also unify the related parameter name. Signed-off-by: Nikolay Nikolaev --- lib/librte_vhost/vhost_user.c | 41 +++++++++++++++++++++-------------------- 1 file changed, 21 insertions(+), 20 deletions(-) diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c index 63d145b2d..505db3bfc 100644 --- a/lib/librte_vhost/vhost_user.c +++ b/lib/librte_vhost/vhost_user.c @@ -250,7 +250,7 @@ vhost_user_set_features(struct virtio_net *dev, uint64_t features) */ static int vhost_user_set_vring_num(struct virtio_net *dev, - VhostUserMsg *msg) + struct VhostUserMsg *msg) { struct vhost_virtqueue *vq = dev->virtqueue[msg->payload.state.index]; @@ -611,7 +611,7 @@ translate_ring_addresses(struct virtio_net *dev, int vq_index) * This function then converts these to our address space. */ static int -vhost_user_set_vring_addr(struct virtio_net **pdev, VhostUserMsg *msg) +vhost_user_set_vring_addr(struct virtio_net **pdev, struct VhostUserMsg *msg) { struct vhost_virtqueue *vq; struct vhost_vring_addr *addr = &msg->payload.addr; @@ -648,7 +648,7 @@ vhost_user_set_vring_addr(struct virtio_net **pdev, VhostUserMsg *msg) */ static int vhost_user_set_vring_base(struct virtio_net *dev, - VhostUserMsg *msg) + struct VhostUserMsg *msg) { dev->virtqueue[msg->payload.state.index]->last_used_idx = msg->payload.state.num; @@ -780,10 +780,10 @@ vhost_memory_changed(struct VhostUserMemory *new, } static int -vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *pmsg) +vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *msg) { struct virtio_net *dev = *pdev; - struct VhostUserMemory memory = pmsg->payload.memory; + struct VhostUserMemory memory = msg->payload.memory; struct rte_vhost_mem_region *reg; void *mmap_addr; uint64_t mmap_size; @@ -804,7 +804,7 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *pmsg) "(%d) memory regions not changed\n", dev->vid); for (i = 0; i < memory.nregions; i++) - close(pmsg->fds[i]); + close(msg->fds[i]); return 0; } @@ -845,7 +845,7 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *pmsg) dev->mem->nregions = memory.nregions; for (i = 0; i < memory.nregions; i++) { - fd = pmsg->fds[i]; + fd = msg->fds[i]; reg = &dev->mem->regions[i]; reg->guest_phys_addr = memory.regions[i].guest_phys_addr; @@ -994,16 +994,16 @@ virtio_is_ready(struct virtio_net *dev) } static void -vhost_user_set_vring_call(struct virtio_net *dev, struct VhostUserMsg *pmsg) +vhost_user_set_vring_call(struct virtio_net *dev, struct VhostUserMsg *msg) { struct vhost_vring_file file; struct vhost_virtqueue *vq; - file.index = pmsg->payload.u64 & VHOST_USER_VRING_IDX_MASK; - if (pmsg->payload.u64 & VHOST_USER_VRING_NOFD_MASK) + file.index = msg->payload.u64 & VHOST_USER_VRING_IDX_MASK; + if (msg->payload.u64 & VHOST_USER_VRING_NOFD_MASK) file.fd = VIRTIO_INVALID_EVENTFD; else - file.fd = pmsg->fds[0]; + file.fd = msg->fds[0]; RTE_LOG(INFO, VHOST_CONFIG, "vring call idx:%d file:%d\n", file.index, file.fd); @@ -1015,17 +1015,17 @@ vhost_user_set_vring_call(struct virtio_net *dev, struct VhostUserMsg *pmsg) } static int -vhost_user_set_vring_kick(struct virtio_net **pdev, struct VhostUserMsg *pmsg) +vhost_user_set_vring_kick(struct virtio_net **pdev, struct VhostUserMsg *msg) { struct vhost_vring_file file; struct vhost_virtqueue *vq; struct virtio_net *dev = *pdev; - file.index = pmsg->payload.u64 & VHOST_USER_VRING_IDX_MASK; - if (pmsg->payload.u64 & VHOST_USER_VRING_NOFD_MASK) + file.index = msg->payload.u64 & VHOST_USER_VRING_IDX_MASK; + if (msg->payload.u64 & VHOST_USER_VRING_NOFD_MASK) file.fd = VIRTIO_INVALID_EVENTFD; else - file.fd = pmsg->fds[0]; + file.fd = msg->fds[0]; RTE_LOG(INFO, VHOST_CONFIG, "vring kick idx:%d file:%d\n", file.index, file.fd); @@ -1073,7 +1073,7 @@ free_zmbufs(struct vhost_virtqueue *vq) */ static int vhost_user_get_vring_base(struct virtio_net *dev, - VhostUserMsg *msg) + struct VhostUserMsg *msg) { struct vhost_virtqueue *vq = dev->virtqueue[msg->payload.state.index]; @@ -1126,7 +1126,7 @@ vhost_user_get_vring_base(struct virtio_net *dev, */ static int vhost_user_set_vring_enable(struct virtio_net *dev, - VhostUserMsg *msg) + struct VhostUserMsg *msg) { int enable = (int)msg->payload.state.num; int index = (int)msg->payload.state.index; @@ -1485,7 +1485,8 @@ send_vhost_slave_message(struct virtio_net *dev, struct VhostUserMsg *msg, * Allocate a queue pair if it hasn't been allocated yet */ static int -vhost_user_check_and_alloc_queue_pair(struct virtio_net *dev, VhostUserMsg *msg) +vhost_user_check_and_alloc_queue_pair(struct virtio_net *dev, + struct VhostUserMsg *msg) { uint16_t vring_idx; @@ -1818,9 +1819,9 @@ vhost_user_msg_handler(int vid, int fd) } static int process_slave_message_reply(struct virtio_net *dev, - const VhostUserMsg *msg) + const struct VhostUserMsg *msg) { - VhostUserMsg msg_reply; + struct VhostUserMsg msg_reply; int ret; if ((msg->flags & VHOST_USER_NEED_REPLY) == 0) From patchwork Mon Sep 24 15:21:24 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikolay Nikolaev X-Patchwork-Id: 147373 Delivered-To: patch@linaro.org Received: by 2002:a2e:8595:0:0:0:0:0 with SMTP id b21-v6csp850098lji; Mon, 24 Sep 2018 08:21:30 -0700 (PDT) X-Google-Smtp-Source: ACcGV60DXNBfI1Xujw4t/VWrKHmC+DF8OymJBDD+savNcinmUPbMstoh/26xIjgZQ1OKPljc/mab X-Received: by 2002:adf:9799:: with SMTP id s25-v6mr6196114wrb.283.1537802490242; Mon, 24 Sep 2018 08:21:30 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1537802490; cv=none; d=google.com; s=arc-20160816; b=mmm/RXsWrB/4Rw7/UlPmrpoKB4M56abYQf5Rg8fRPyHKr0418iQ1G5tPmyB3wcsP47 zlWV0D4JmQNPVd6R/q/ror1QKpz5HolicxjwUxis7wgZRb8rsh+P95I2bcFzjn9MmYrZ B7uCQqT27xXWUyw/hjlY2pj6xcqZY73R5QDHpmXDfvGJRyaFHQz64HUEeYpDehgnplEr Ca8Vbxx2t1yeKC4y69VVb3oesvE5e3U9IKmP9cV2ctvQTIWAC7nqwlOdk0Yvh5msh4VN uujFROHuGuokDPOLVg6rrSrzDzErSFINkL+er6w1SHUobueT1CKovh3rvtW/aO2VYYS6 izPw== ARC-Message-Signature: i=1; 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Signed-off-by: Nikolay Nikolaev --- lib/librte_vhost/vhost_user.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c index 505db3bfc..4ae7b9346 100644 --- a/lib/librte_vhost/vhost_user.c +++ b/lib/librte_vhost/vhost_user.c @@ -146,11 +146,15 @@ vhost_user_reset_owner(struct virtio_net *dev) * The features that we support are requested. */ static uint64_t -vhost_user_get_features(struct virtio_net *dev) +vhost_user_get_features(struct virtio_net *dev, struct VhostUserMsg *msg) { uint64_t features = 0; rte_vhost_driver_get_features(dev->ifname, &features); + + msg->payload.u64 = features; + msg->size = sizeof(msg->payload.u64); + return features; } @@ -158,11 +162,15 @@ vhost_user_get_features(struct virtio_net *dev) * The queue number that we support are requested. */ static uint32_t -vhost_user_get_queue_num(struct virtio_net *dev) +vhost_user_get_queue_num(struct virtio_net *dev, struct VhostUserMsg *msg) { uint32_t queue_num = 0; rte_vhost_driver_get_queue_num(dev->ifname, &queue_num); + + msg->payload.u64 = (uint64_t)queue_num; + msg->size = sizeof(msg->payload.u64); + return queue_num; } @@ -1117,6 +1125,8 @@ vhost_user_get_vring_base(struct virtio_net *dev, rte_free(vq->batch_copy_elems); vq->batch_copy_elems = NULL; + msg->size = sizeof(msg->payload.state); + return 0; } @@ -1244,6 +1254,8 @@ vhost_user_set_log_base(struct virtio_net *dev, struct VhostUserMsg *msg) dev->log_base = dev->log_addr + off; dev->log_size = size; + msg->size = sizeof(msg->payload.u64); + return 0; } @@ -1658,8 +1670,7 @@ vhost_user_msg_handler(int vid, int fd) switch (msg.request.master) { case VHOST_USER_GET_FEATURES: - msg.payload.u64 = vhost_user_get_features(dev); - msg.size = sizeof(msg.payload.u64); + vhost_user_get_features(dev, &msg); send_vhost_reply(fd, &msg); break; case VHOST_USER_SET_FEATURES: @@ -1690,7 +1701,6 @@ vhost_user_msg_handler(int vid, int fd) if (ret) goto skip_to_reply; /* it needs a reply */ - msg.size = sizeof(msg.payload.u64); send_vhost_reply(fd, &msg); break; case VHOST_USER_SET_LOG_FD: @@ -1712,7 +1722,6 @@ vhost_user_msg_handler(int vid, int fd) ret = vhost_user_get_vring_base(dev, &msg); if (ret) goto skip_to_reply; - msg.size = sizeof(msg.payload.state); send_vhost_reply(fd, &msg); break; @@ -1730,8 +1739,7 @@ vhost_user_msg_handler(int vid, int fd) break; case VHOST_USER_GET_QUEUE_NUM: - msg.payload.u64 = (uint64_t)vhost_user_get_queue_num(dev); - msg.size = sizeof(msg.payload.u64); + vhost_user_get_queue_num(dev, &msg); send_vhost_reply(fd, &msg); break; From patchwork Mon Sep 24 15:21:31 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikolay Nikolaev X-Patchwork-Id: 147374 Delivered-To: patch@linaro.org Received: by 2002:a2e:8595:0:0:0:0:0 with SMTP id b21-v6csp850266lji; Mon, 24 Sep 2018 08:21:38 -0700 (PDT) X-Google-Smtp-Source: ACcGV60IpHZQPHdhyvGmhL6C1GvU742PibAiPttuI0sTgta8kABnP4azmlfTJn2NGdX0koldtZh6 X-Received: by 2002:a5d:4185:: with SMTP id m5-v6mr9112336wrp.8.1537802497966; Mon, 24 Sep 2018 08:21:37 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1537802497; cv=none; d=google.com; s=arc-20160816; b=sPF/pd3ejq+OChC3wrfahJXq/ahxxWkxC3h1YZnyrgGwuTodPBiDwEr3hC/l931cds LOzsz2KvIL1rdCyPJ0XaffrEY56CtZN4Oku+hFinUFr5acGu2gbufkfRn5fFi5cix3ka kGGHeJAPunUX0jz0Tewq6Oq+2KoQpBopUJ2VnlilM2nY5cni1wKez3Zz1CV1g0/zo0H5 rNtXUHQsrQsxm9eZxPPe6Ap24hzCPXMRS10E9zQXuobRMYLE7FmOYcHWmYB1K7GglmDE DBWXU7bczt+klRCW4UZ1panZWiMiJjA6Hcj6rCQcvQoXj88/5AjbGBmnC07ZEvCahV5z TcyQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:subject :content-transfer-encoding:mime-version:user-agent:references :in-reply-to:message-id:date:cc:to:from:dkim-signature; bh=02phtoPLKMhvw1pfeICuDg0OkVyxO3opBE13Pyie90Y=; b=WXgIaavaL6JmFSBURbX7sxNpexdSjIhXSo8MAo0V08umlEKfbfhlmpLVKRDQSPe7E3 Mgw7qUIgt5P9IZyQlfEd6GF8yuCUGFheBbabcMaDylSoEjWknPP56P7icYDN26wdj3dq rpk7rqL+3fedMvEHVt2plhHARI9cIUxuqZ11Q+C92EBAvowJyTK1iyYgacT5ZBqc1u/0 4D932ujEtngULkBt+rf+WVgixgaNpTwFeckYd82u8zNi/Qn+6WUcUonkUhn/iEKeAkp8 k+UhfaL0n32Pum6GOmo+0XTqJDO9htw1Rdw3QWIhKTzPaZOrER3y0TNCSQ3UssDksjeD ph6w== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@gmail.com header.s=20161025 header.b=AxSIrpMm; spf=pass (google.com: domain of dev-bounces@dpdk.org designates 92.243.14.124 as permitted sender) smtp.mailfrom=dev-bounces@dpdk.org; dmarc=fail (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from dpdk.org (dpdk.org. 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Mon, 24 Sep 2018 08:21:33 -0700 (PDT) Received: from [127.0.1.1] ([82.146.27.14]) by smtp.gmail.com with ESMTPSA id y12-v6sm27102825wrq.33.2018.09.24.08.21.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 24 Sep 2018 08:21:32 -0700 (PDT) From: Nikolay Nikolaev To: maxime.coquelin@redhat.com, anatoly.burakov@intel.com, tiwei.bie@intel.com, zhihong.wang@intel.com Cc: dev@dpdk.org Date: Mon, 24 Sep 2018 18:21:31 +0300 Message-ID: <153780249174.17494.10969398205446811104.stgit@T460> In-Reply-To: <153780242838.17494.4512397995243433980.stgit@T460> References: <153780242838.17494.4512397995243433980.stgit@T460> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v5 3/5] vhost: handle unsupported message types in functions X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add new functions to handle the unsupported vhost message types: - vhost_user_set_vring_err - vhost_user_set_log_fd Signed-off-by: Nikolay Nikolaev --- lib/librte_vhost/vhost_user.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c index 4ae7b9346..77905dda0 100644 --- a/lib/librte_vhost/vhost_user.c +++ b/lib/librte_vhost/vhost_user.c @@ -1022,6 +1022,14 @@ vhost_user_set_vring_call(struct virtio_net *dev, struct VhostUserMsg *msg) vq->callfd = file.fd; } +static void vhost_user_set_vring_err(struct virtio_net **pdev __rte_unused, + struct VhostUserMsg *msg) +{ + if (!(msg->payload.u64 & VHOST_USER_VRING_NOFD_MASK)) + close(msg->fds[0]); + RTE_LOG(INFO, VHOST_CONFIG, "not implemented\n"); +} + static int vhost_user_set_vring_kick(struct virtio_net **pdev, struct VhostUserMsg *msg) { @@ -1259,6 +1267,13 @@ vhost_user_set_log_base(struct virtio_net *dev, struct VhostUserMsg *msg) return 0; } +static void vhost_user_set_log_fd(struct virtio_net **pdev __rte_unused, + struct VhostUserMsg *msg) +{ + close(msg->fds[0]); + RTE_LOG(INFO, VHOST_CONFIG, "not implemented.\n"); +} + /* * An rarp packet is constructed and broadcasted to notify switches about * the new location of the migrated VM, so that packets from outside will @@ -1704,8 +1719,7 @@ vhost_user_msg_handler(int vid, int fd) send_vhost_reply(fd, &msg); break; case VHOST_USER_SET_LOG_FD: - close(msg.fds[0]); - RTE_LOG(INFO, VHOST_CONFIG, "not implemented.\n"); + vhost_user_set_log_fd(&dev, &msg); break; case VHOST_USER_SET_VRING_NUM: @@ -1733,9 +1747,7 @@ vhost_user_msg_handler(int vid, int fd) break; case VHOST_USER_SET_VRING_ERR: - if (!(msg.payload.u64 & VHOST_USER_VRING_NOFD_MASK)) - close(msg.fds[0]); - RTE_LOG(INFO, VHOST_CONFIG, "not implemented\n"); + vhost_user_set_vring_err(&dev, &msg); break; case VHOST_USER_GET_QUEUE_NUM: From patchwork Mon Sep 24 15:21:38 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikolay Nikolaev X-Patchwork-Id: 147375 Delivered-To: patch@linaro.org Received: by 2002:a2e:8595:0:0:0:0:0 with SMTP id b21-v6csp850436lji; Mon, 24 Sep 2018 08:21:48 -0700 (PDT) X-Google-Smtp-Source: ACcGV63d+7mnj/agVsW14FQkt4HJa30urKU10Y1SsY1yMt/RGQ5wB7wg3BylKHBnoZKMc1U8334m X-Received: by 2002:adf:9031:: with SMTP id h46-v6mr9118093wrh.248.1537802508822; Mon, 24 Sep 2018 08:21:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1537802508; cv=none; d=google.com; s=arc-20160816; b=SicML78eV3S1l/vIkiBMY213qee+VV4zyKMSGKFk+jK7UWS6wmPrDXvUpnbIl05HtL J1cRMA2dyXjjwc3ftDpjgV3WGXua5I6kdWADr5m8r0wC2jTuwnG6RwsnUa9U19Oqq6wT zlVTFIrYFtLtd75m27uCe8aqJI7ecdQ2LzH10Y8OsHGq1qN3oV6RTsqPegV9ujmwbylR EiewhMjNWTsWwzPxOFXMyvCHzApvPT1u96Jxo2wo6n6lvDRUc50PcxGnEqWWN6HqavSo foaHSLK3Y3/fo/ZJaKzY/fAkihDD/jbyDH3LN9CvWYdTkiAZCwgggge9c5JLjAyPVXCa jh/w== ARC-Message-Signature: i=1; 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All functions will now have two arguments, virtio_net double pointer and VhostUserMsg pointer. Signed-off-by: Nikolay Nikolaev --- lib/librte_vhost/vhost_user.c | 211 ++++++++++++++++++++++++----------------- 1 file changed, 125 insertions(+), 86 deletions(-) diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c index 77905dda0..ac89f413d 100644 --- a/lib/librte_vhost/vhost_user.c +++ b/lib/librte_vhost/vhost_user.c @@ -71,6 +71,16 @@ static const char *vhost_message_str[VHOST_USER_MAX] = { [VHOST_USER_CRYPTO_CLOSE_SESS] = "VHOST_USER_CRYPTO_CLOSE_SESS", }; +/* The possible results of a message handling function */ +enum vh_result { + /* Message handling failed */ + VH_RESULT_ERR = -1, + /* Message handling successful */ + VH_RESULT_OK = 0, + /* Message handling successful and reply prepared */ + VH_RESULT_REPLY = 1, +}; + static uint64_t get_blk_size(int fd) { @@ -127,27 +137,31 @@ vhost_backend_cleanup(struct virtio_net *dev) * the device hasn't been initialised. */ static int -vhost_user_set_owner(void) +vhost_user_set_owner(struct virtio_net **pdev __rte_unused, + VhostUserMsg * msg __rte_unused) { - return 0; + return VH_RESULT_OK; } static int -vhost_user_reset_owner(struct virtio_net *dev) +vhost_user_reset_owner(struct virtio_net **pdev, + VhostUserMsg * msg __rte_unused) { + struct virtio_net *dev = *pdev; vhost_destroy_device_notify(dev); cleanup_device(dev, 0); reset_device(dev); - return 0; + return VH_RESULT_OK; } /* * The features that we support are requested. */ -static uint64_t -vhost_user_get_features(struct virtio_net *dev, struct VhostUserMsg *msg) +static int +vhost_user_get_features(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; uint64_t features = 0; rte_vhost_driver_get_features(dev->ifname, &features); @@ -155,15 +169,16 @@ vhost_user_get_features(struct virtio_net *dev, struct VhostUserMsg *msg) msg->payload.u64 = features; msg->size = sizeof(msg->payload.u64); - return features; + return VH_RESULT_REPLY; } /* * The queue number that we support are requested. */ -static uint32_t -vhost_user_get_queue_num(struct virtio_net *dev, struct VhostUserMsg *msg) +static int +vhost_user_get_queue_num(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; uint32_t queue_num = 0; rte_vhost_driver_get_queue_num(dev->ifname, &queue_num); @@ -171,15 +186,17 @@ vhost_user_get_queue_num(struct virtio_net *dev, struct VhostUserMsg *msg) msg->payload.u64 = (uint64_t)queue_num; msg->size = sizeof(msg->payload.u64); - return queue_num; + return VH_RESULT_REPLY; } /* * We receive the negotiated features supported by us and the virtio device. */ static int -vhost_user_set_features(struct virtio_net *dev, uint64_t features) +vhost_user_set_features(struct virtio_net **pdev, VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; + uint64_t features = msg->payload.u64; uint64_t vhost_features = 0; struct rte_vdpa_device *vdpa_dev; int did = -1; @@ -189,12 +206,12 @@ vhost_user_set_features(struct virtio_net *dev, uint64_t features) RTE_LOG(ERR, VHOST_CONFIG, "(%d) received invalid negotiated features.\n", dev->vid); - return -1; + return VH_RESULT_ERR; } if (dev->flags & VIRTIO_DEV_RUNNING) { if (dev->features == features) - return 0; + return VH_RESULT_OK; /* * Error out if master tries to change features while device is @@ -205,7 +222,7 @@ vhost_user_set_features(struct virtio_net *dev, uint64_t features) RTE_LOG(ERR, VHOST_CONFIG, "(%d) features changed while device is running.\n", dev->vid); - return -1; + return VH_RESULT_ERR; } if (dev->notify_ops->features_changed) @@ -250,16 +267,17 @@ vhost_user_set_features(struct virtio_net *dev, uint64_t features) if (vdpa_dev && vdpa_dev->ops->set_features) vdpa_dev->ops->set_features(dev->vid); - return 0; + return VH_RESULT_OK; } /* * The virtio device sends us the size of the descriptor ring. */ static int -vhost_user_set_vring_num(struct virtio_net *dev, +vhost_user_set_vring_num(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; struct vhost_virtqueue *vq = dev->virtqueue[msg->payload.state.index]; vq->size = msg->payload.state.num; @@ -272,7 +290,7 @@ vhost_user_set_vring_num(struct virtio_net *dev, if ((vq->size & (vq->size - 1)) || vq->size > 32768) { RTE_LOG(ERR, VHOST_CONFIG, "invalid virtqueue size %u\n", vq->size); - return -1; + return VH_RESULT_ERR; } if (dev->dequeue_zero_copy) { @@ -298,7 +316,7 @@ vhost_user_set_vring_num(struct virtio_net *dev, if (!vq->shadow_used_packed) { RTE_LOG(ERR, VHOST_CONFIG, "failed to allocate memory for shadow used ring.\n"); - return -1; + return VH_RESULT_ERR; } } else { @@ -308,7 +326,7 @@ vhost_user_set_vring_num(struct virtio_net *dev, if (!vq->shadow_used_split) { RTE_LOG(ERR, VHOST_CONFIG, "failed to allocate memory for shadow used ring.\n"); - return -1; + return VH_RESULT_ERR; } } @@ -318,10 +336,10 @@ vhost_user_set_vring_num(struct virtio_net *dev, if (!vq->batch_copy_elems) { RTE_LOG(ERR, VHOST_CONFIG, "failed to allocate memory for batching copy.\n"); - return -1; + return VH_RESULT_ERR; } - return 0; + return VH_RESULT_OK; } /* @@ -621,12 +639,12 @@ translate_ring_addresses(struct virtio_net *dev, int vq_index) static int vhost_user_set_vring_addr(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; struct vhost_virtqueue *vq; struct vhost_vring_addr *addr = &msg->payload.addr; - struct virtio_net *dev = *pdev; if (dev->mem == NULL) - return -1; + return VH_RESULT_ERR; /* addr->index refers to the queue index. The txq 1, rxq is 0. */ vq = dev->virtqueue[msg->payload.addr.index]; @@ -643,27 +661,28 @@ vhost_user_set_vring_addr(struct virtio_net **pdev, struct VhostUserMsg *msg) (1ULL << VHOST_USER_F_PROTOCOL_FEATURES))) { dev = translate_ring_addresses(dev, msg->payload.addr.index); if (!dev) - return -1; + return VH_RESULT_ERR; *pdev = dev; } - return 0; + return VH_RESULT_OK; } /* * The virtio device sends us the available ring last used index. */ static int -vhost_user_set_vring_base(struct virtio_net *dev, +vhost_user_set_vring_base(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; dev->virtqueue[msg->payload.state.index]->last_used_idx = msg->payload.state.num; dev->virtqueue[msg->payload.state.index]->last_avail_idx = msg->payload.state.num; - return 0; + return VH_RESULT_OK; } static int @@ -804,7 +823,7 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *msg) if (memory.nregions > VHOST_MEMORY_MAX_NREGIONS) { RTE_LOG(ERR, VHOST_CONFIG, "too many memory regions (%u)\n", memory.nregions); - return -1; + return VH_RESULT_ERR; } if (dev->mem && !vhost_memory_changed(&memory, dev->mem)) { @@ -814,7 +833,7 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *msg) for (i = 0; i < memory.nregions; i++) close(msg->fds[i]); - return 0; + return VH_RESULT_OK; } if (dev->mem) { @@ -838,7 +857,7 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *msg) "(%d) failed to allocate memory " "for dev->guest_pages\n", dev->vid); - return -1; + return VH_RESULT_ERR; } } @@ -848,7 +867,7 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *msg) RTE_LOG(ERR, VHOST_CONFIG, "(%d) failed to allocate memory for dev->mem\n", dev->vid); - return -1; + return VH_RESULT_ERR; } dev->mem->nregions = memory.nregions; @@ -945,7 +964,7 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *msg) dev = translate_ring_addresses(dev, i); if (!dev) - return -1; + return VH_RESULT_ERR; *pdev = dev; } @@ -953,13 +972,13 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *msg) dump_guest_pages(dev); - return 0; + return VH_RESULT_OK; err_mmap: free_mem_region(dev); rte_free(dev->mem); dev->mem = NULL; - return -1; + return VH_RESULT_ERR; } static bool @@ -1001,9 +1020,10 @@ virtio_is_ready(struct virtio_net *dev) return 1; } -static void -vhost_user_set_vring_call(struct virtio_net *dev, struct VhostUserMsg *msg) +static int +vhost_user_set_vring_call(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; struct vhost_vring_file file; struct vhost_virtqueue *vq; @@ -1020,22 +1040,26 @@ vhost_user_set_vring_call(struct virtio_net *dev, struct VhostUserMsg *msg) close(vq->callfd); vq->callfd = file.fd; + + return VH_RESULT_OK; } -static void vhost_user_set_vring_err(struct virtio_net **pdev __rte_unused, +static int vhost_user_set_vring_err(struct virtio_net **pdev __rte_unused, struct VhostUserMsg *msg) { if (!(msg->payload.u64 & VHOST_USER_VRING_NOFD_MASK)) close(msg->fds[0]); RTE_LOG(INFO, VHOST_CONFIG, "not implemented\n"); + + return VH_RESULT_OK; } static int vhost_user_set_vring_kick(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; struct vhost_vring_file file; struct vhost_virtqueue *vq; - struct virtio_net *dev = *pdev; file.index = msg->payload.u64 & VHOST_USER_VRING_IDX_MASK; if (msg->payload.u64 & VHOST_USER_VRING_NOFD_MASK) @@ -1048,7 +1072,7 @@ vhost_user_set_vring_kick(struct virtio_net **pdev, struct VhostUserMsg *msg) /* Interpret ring addresses only when ring is started. */ dev = translate_ring_addresses(dev, file.index); if (!dev) - return -1; + return VH_RESULT_ERR; *pdev = dev; @@ -1065,7 +1089,8 @@ vhost_user_set_vring_kick(struct virtio_net **pdev, struct VhostUserMsg *msg) if (vq->kickfd >= 0) close(vq->kickfd); vq->kickfd = file.fd; - return 0; + + return VH_RESULT_OK; } static void @@ -1088,9 +1113,10 @@ free_zmbufs(struct vhost_virtqueue *vq) * when virtio is stopped, qemu will send us the GET_VRING_BASE message. */ static int -vhost_user_get_vring_base(struct virtio_net *dev, +vhost_user_get_vring_base(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; struct vhost_virtqueue *vq = dev->virtqueue[msg->payload.state.index]; /* We have to stop the queue (virtio) if it is running. */ @@ -1135,7 +1161,7 @@ vhost_user_get_vring_base(struct virtio_net *dev, msg->size = sizeof(msg->payload.state); - return 0; + return VH_RESULT_OK; } /* @@ -1143,9 +1169,10 @@ vhost_user_get_vring_base(struct virtio_net *dev, * enable the virtio queue pair. */ static int -vhost_user_set_vring_enable(struct virtio_net *dev, +vhost_user_set_vring_enable(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; int enable = (int)msg->payload.state.num; int index = (int)msg->payload.state.index; struct rte_vdpa_device *vdpa_dev; @@ -1166,13 +1193,14 @@ vhost_user_set_vring_enable(struct virtio_net *dev, dev->virtqueue[index]->enabled = enable; - return 0; + return VH_RESULT_OK; } -static void -vhost_user_get_protocol_features(struct virtio_net *dev, +static int +vhost_user_get_protocol_features(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; uint64_t features, protocol_features; rte_vhost_driver_get_features(dev->ifname, &features); @@ -1189,40 +1217,46 @@ vhost_user_get_protocol_features(struct virtio_net *dev, msg->payload.u64 = protocol_features; msg->size = sizeof(msg->payload.u64); + + return VH_RESULT_OK; } static int -vhost_user_set_protocol_features(struct virtio_net *dev, - uint64_t protocol_features) +vhost_user_set_protocol_features(struct virtio_net **pdev, + VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; + uint64_t protocol_features = msg->payload.u64; if (protocol_features & ~VHOST_USER_PROTOCOL_FEATURES) { RTE_LOG(ERR, VHOST_CONFIG, "(%d) received invalid protocol features.\n", dev->vid); - return -1; + return VH_RESULT_ERR; } dev->protocol_features = protocol_features; - return 0; + + return VH_RESULT_OK; } static int -vhost_user_set_log_base(struct virtio_net *dev, struct VhostUserMsg *msg) +vhost_user_set_log_base(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; int fd = msg->fds[0]; uint64_t size, off; void *addr; if (fd < 0) { RTE_LOG(ERR, VHOST_CONFIG, "invalid log fd: %d\n", fd); - return -1; + return VH_RESULT_ERR; } if (msg->size != sizeof(VhostUserLog)) { RTE_LOG(ERR, VHOST_CONFIG, "invalid log base msg size: %"PRId32" != %d\n", msg->size, (int)sizeof(VhostUserLog)); - return -1; + return VH_RESULT_ERR; } size = msg->payload.log.mmap_size; @@ -1233,7 +1267,7 @@ vhost_user_set_log_base(struct virtio_net *dev, struct VhostUserMsg *msg) RTE_LOG(ERR, VHOST_CONFIG, "log offset %#"PRIx64" exceeds log size %#"PRIx64"\n", off, size); - return -1; + return VH_RESULT_ERR; } RTE_LOG(INFO, VHOST_CONFIG, @@ -1248,7 +1282,7 @@ vhost_user_set_log_base(struct virtio_net *dev, struct VhostUserMsg *msg) close(fd); if (addr == MAP_FAILED) { RTE_LOG(ERR, VHOST_CONFIG, "mmap log base failed!\n"); - return -1; + return VH_RESULT_ERR; } /* @@ -1264,14 +1298,16 @@ vhost_user_set_log_base(struct virtio_net *dev, struct VhostUserMsg *msg) msg->size = sizeof(msg->payload.u64); - return 0; + return VH_RESULT_OK; } -static void vhost_user_set_log_fd(struct virtio_net **pdev __rte_unused, +static int vhost_user_set_log_fd(struct virtio_net **pdev __rte_unused, struct VhostUserMsg *msg) { close(msg->fds[0]); RTE_LOG(INFO, VHOST_CONFIG, "not implemented.\n"); + + return VH_RESULT_OK; } /* @@ -1283,8 +1319,9 @@ static void vhost_user_set_log_fd(struct virtio_net **pdev __rte_unused, * a flag 'broadcast_rarp' to let rte_vhost_dequeue_burst() inject it. */ static int -vhost_user_send_rarp(struct virtio_net *dev, struct VhostUserMsg *msg) +vhost_user_send_rarp(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; uint8_t *mac = (uint8_t *)&msg->payload.u64; struct rte_vdpa_device *vdpa_dev; int did = -1; @@ -1308,40 +1345,42 @@ vhost_user_send_rarp(struct virtio_net *dev, struct VhostUserMsg *msg) if (vdpa_dev && vdpa_dev->ops->migration_done) vdpa_dev->ops->migration_done(dev->vid); - return 0; + return VH_RESULT_OK; } static int -vhost_user_net_set_mtu(struct virtio_net *dev, struct VhostUserMsg *msg) +vhost_user_net_set_mtu(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; if (msg->payload.u64 < VIRTIO_MIN_MTU || msg->payload.u64 > VIRTIO_MAX_MTU) { RTE_LOG(ERR, VHOST_CONFIG, "Invalid MTU size (%"PRIu64")\n", msg->payload.u64); - return -1; + return VH_RESULT_ERR; } dev->mtu = msg->payload.u64; - return 0; + return VH_RESULT_OK; } static int -vhost_user_set_req_fd(struct virtio_net *dev, struct VhostUserMsg *msg) +vhost_user_set_req_fd(struct virtio_net **pdev, struct VhostUserMsg *msg) { + struct virtio_net *dev = *pdev; int fd = msg->fds[0]; if (fd < 0) { RTE_LOG(ERR, VHOST_CONFIG, "Invalid file descriptor for slave channel (%d)\n", fd); - return -1; + return VH_RESULT_ERR; } dev->slave_req_fd = fd; - return 0; + return VH_RESULT_OK; } static int @@ -1406,7 +1445,7 @@ vhost_user_iotlb_msg(struct virtio_net **pdev, struct VhostUserMsg *msg) len = imsg->size; vva = qva_to_vva(dev, imsg->uaddr, &len); if (!vva) - return -1; + return VH_RESULT_ERR; for (i = 0; i < dev->nr_vring; i++) { struct vhost_virtqueue *vq = dev->virtqueue[i]; @@ -1432,10 +1471,10 @@ vhost_user_iotlb_msg(struct virtio_net **pdev, struct VhostUserMsg *msg) default: RTE_LOG(ERR, VHOST_CONFIG, "Invalid IOTLB message type (%d)\n", imsg->type); - return -1; + return VH_RESULT_ERR; } - return 0; + return VH_RESULT_OK; } /* return bytes# of read on success or negative val on failure. */ @@ -1685,26 +1724,26 @@ vhost_user_msg_handler(int vid, int fd) switch (msg.request.master) { case VHOST_USER_GET_FEATURES: - vhost_user_get_features(dev, &msg); + ret = vhost_user_get_features(&dev, &msg); send_vhost_reply(fd, &msg); break; case VHOST_USER_SET_FEATURES: - ret = vhost_user_set_features(dev, msg.payload.u64); + ret = vhost_user_set_features(&dev, &msg); break; case VHOST_USER_GET_PROTOCOL_FEATURES: - vhost_user_get_protocol_features(dev, &msg); + ret = vhost_user_get_protocol_features(&dev, &msg); send_vhost_reply(fd, &msg); break; case VHOST_USER_SET_PROTOCOL_FEATURES: - ret = vhost_user_set_protocol_features(dev, msg.payload.u64); + ret = vhost_user_set_protocol_features(&dev, &msg); break; case VHOST_USER_SET_OWNER: - ret = vhost_user_set_owner(); + ret = vhost_user_set_owner(&dev, &msg); break; case VHOST_USER_RESET_OWNER: - ret = vhost_user_reset_owner(dev); + ret = vhost_user_reset_owner(&dev, &msg); break; case VHOST_USER_SET_MEM_TABLE: @@ -1712,28 +1751,28 @@ vhost_user_msg_handler(int vid, int fd) break; case VHOST_USER_SET_LOG_BASE: - ret = vhost_user_set_log_base(dev, &msg); + ret = vhost_user_set_log_base(&dev, &msg); if (ret) goto skip_to_reply; /* it needs a reply */ send_vhost_reply(fd, &msg); break; case VHOST_USER_SET_LOG_FD: - vhost_user_set_log_fd(&dev, &msg); + ret = vhost_user_set_log_fd(&dev, &msg); break; case VHOST_USER_SET_VRING_NUM: - ret = vhost_user_set_vring_num(dev, &msg); + ret = vhost_user_set_vring_num(&dev, &msg); break; case VHOST_USER_SET_VRING_ADDR: ret = vhost_user_set_vring_addr(&dev, &msg); break; case VHOST_USER_SET_VRING_BASE: - ret = vhost_user_set_vring_base(dev, &msg); + ret = vhost_user_set_vring_base(&dev, &msg); break; case VHOST_USER_GET_VRING_BASE: - ret = vhost_user_get_vring_base(dev, &msg); + ret = vhost_user_get_vring_base(&dev, &msg); if (ret) goto skip_to_reply; send_vhost_reply(fd, &msg); @@ -1743,31 +1782,31 @@ vhost_user_msg_handler(int vid, int fd) ret = vhost_user_set_vring_kick(&dev, &msg); break; case VHOST_USER_SET_VRING_CALL: - vhost_user_set_vring_call(dev, &msg); + ret = vhost_user_set_vring_call(&dev, &msg); break; case VHOST_USER_SET_VRING_ERR: - vhost_user_set_vring_err(&dev, &msg); + ret = vhost_user_set_vring_err(&dev, &msg); break; case VHOST_USER_GET_QUEUE_NUM: - vhost_user_get_queue_num(dev, &msg); + ret = vhost_user_get_queue_num(&dev, &msg); send_vhost_reply(fd, &msg); break; case VHOST_USER_SET_VRING_ENABLE: - ret = vhost_user_set_vring_enable(dev, &msg); + ret = vhost_user_set_vring_enable(&dev, &msg); break; case VHOST_USER_SEND_RARP: - ret = vhost_user_send_rarp(dev, &msg); + ret = vhost_user_send_rarp(&dev, &msg); break; case VHOST_USER_NET_SET_MTU: - ret = vhost_user_net_set_mtu(dev, &msg); + ret = vhost_user_net_set_mtu(&dev, &msg); break; case VHOST_USER_SET_SLAVE_REQ_FD: - ret = vhost_user_set_req_fd(dev, &msg); + ret = vhost_user_set_req_fd(&dev, &msg); 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Then replace the switch construct with a map and call. Failing vhost_user_set_features is fatal and all processing should stop immediately and propagate the error to the upper layers. Change the code accordingly to reflect that. Signed-off-by: Nikolay Nikolaev --- lib/librte_vhost/vhost_user.c | 149 +++++++++++++++-------------------------- 1 file changed, 56 insertions(+), 93 deletions(-) diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c index ac89f413d..faad3ba49 100644 --- a/lib/librte_vhost/vhost_user.c +++ b/lib/librte_vhost/vhost_user.c @@ -1477,6 +1477,34 @@ vhost_user_iotlb_msg(struct virtio_net **pdev, struct VhostUserMsg *msg) return VH_RESULT_OK; } +typedef int (*vhost_message_handler_t)(struct virtio_net **pdev, VhostUserMsg * msg); +static vhost_message_handler_t vhost_message_handlers[VHOST_USER_MAX] = { + [VHOST_USER_NONE] = NULL, + [VHOST_USER_GET_FEATURES] = vhost_user_get_features, + [VHOST_USER_SET_FEATURES] = vhost_user_set_features, + [VHOST_USER_SET_OWNER] = vhost_user_set_owner, + [VHOST_USER_RESET_OWNER] = vhost_user_reset_owner, + [VHOST_USER_SET_MEM_TABLE] = vhost_user_set_mem_table, + [VHOST_USER_SET_LOG_BASE] = vhost_user_set_log_base, + [VHOST_USER_SET_LOG_FD] = vhost_user_set_log_fd, + [VHOST_USER_SET_VRING_NUM] = vhost_user_set_vring_num, + [VHOST_USER_SET_VRING_ADDR] = vhost_user_set_vring_addr, + [VHOST_USER_SET_VRING_BASE] = vhost_user_set_vring_base, + [VHOST_USER_GET_VRING_BASE] = vhost_user_get_vring_base, + [VHOST_USER_SET_VRING_KICK] = vhost_user_set_vring_kick, + [VHOST_USER_SET_VRING_CALL] = vhost_user_set_vring_call, + [VHOST_USER_SET_VRING_ERR] = vhost_user_set_vring_err, + [VHOST_USER_GET_PROTOCOL_FEATURES] = vhost_user_get_protocol_features, + [VHOST_USER_SET_PROTOCOL_FEATURES] = vhost_user_set_protocol_features, + [VHOST_USER_GET_QUEUE_NUM] = vhost_user_get_queue_num, + [VHOST_USER_SET_VRING_ENABLE] = vhost_user_set_vring_enable, + [VHOST_USER_SEND_RARP] = vhost_user_send_rarp, + [VHOST_USER_NET_SET_MTU] = vhost_user_net_set_mtu, + [VHOST_USER_SET_SLAVE_REQ_FD] = vhost_user_set_req_fd, + [VHOST_USER_IOTLB_MSG] = vhost_user_iotlb_msg, +}; + + /* return bytes# of read on success or negative val on failure. */ static int read_vhost_message(int sockfd, struct VhostUserMsg *msg) @@ -1630,6 +1658,7 @@ vhost_user_msg_handler(int vid, int fd) int ret; int unlock_required = 0; uint32_t skip_master = 0; + int request; dev = get_device(vid); if (dev == NULL) @@ -1722,100 +1751,34 @@ vhost_user_msg_handler(int vid, int fd) goto skip_to_post_handle; } - switch (msg.request.master) { - case VHOST_USER_GET_FEATURES: - ret = vhost_user_get_features(&dev, &msg); - send_vhost_reply(fd, &msg); - break; - case VHOST_USER_SET_FEATURES: - ret = vhost_user_set_features(&dev, &msg); - break; - - case VHOST_USER_GET_PROTOCOL_FEATURES: - ret = vhost_user_get_protocol_features(&dev, &msg); - send_vhost_reply(fd, &msg); - break; - case VHOST_USER_SET_PROTOCOL_FEATURES: - ret = vhost_user_set_protocol_features(&dev, &msg); - break; - - case VHOST_USER_SET_OWNER: - ret = vhost_user_set_owner(&dev, &msg); - break; - case VHOST_USER_RESET_OWNER: - ret = vhost_user_reset_owner(&dev, &msg); - break; - - case VHOST_USER_SET_MEM_TABLE: - ret = vhost_user_set_mem_table(&dev, &msg); - break; - - case VHOST_USER_SET_LOG_BASE: - ret = vhost_user_set_log_base(&dev, &msg); - if (ret) - goto skip_to_reply; - /* it needs a reply */ - send_vhost_reply(fd, &msg); - break; - case VHOST_USER_SET_LOG_FD: - ret = vhost_user_set_log_fd(&dev, &msg); - break; - - case VHOST_USER_SET_VRING_NUM: - ret = vhost_user_set_vring_num(&dev, &msg); - break; - case VHOST_USER_SET_VRING_ADDR: - ret = vhost_user_set_vring_addr(&dev, &msg); - break; - case VHOST_USER_SET_VRING_BASE: - ret = vhost_user_set_vring_base(&dev, &msg); - break; - - case VHOST_USER_GET_VRING_BASE: - ret = vhost_user_get_vring_base(&dev, &msg); - if (ret) - goto skip_to_reply; - send_vhost_reply(fd, &msg); - break; - - case VHOST_USER_SET_VRING_KICK: - ret = vhost_user_set_vring_kick(&dev, &msg); - break; - case VHOST_USER_SET_VRING_CALL: - ret = vhost_user_set_vring_call(&dev, &msg); - break; - - case VHOST_USER_SET_VRING_ERR: - ret = vhost_user_set_vring_err(&dev, &msg); - break; - - case VHOST_USER_GET_QUEUE_NUM: - ret = vhost_user_get_queue_num(&dev, &msg); - send_vhost_reply(fd, &msg); - break; - - case VHOST_USER_SET_VRING_ENABLE: - ret = vhost_user_set_vring_enable(&dev, &msg); - break; - case VHOST_USER_SEND_RARP: - ret = vhost_user_send_rarp(&dev, &msg); - break; - - case VHOST_USER_NET_SET_MTU: - ret = vhost_user_net_set_mtu(&dev, &msg); - break; - - case VHOST_USER_SET_SLAVE_REQ_FD: - ret = vhost_user_set_req_fd(&dev, &msg); - break; - - case VHOST_USER_IOTLB_MSG: - ret = vhost_user_iotlb_msg(&dev, &msg); - break; + request = msg.request.master; + if (request > VHOST_USER_NONE && request < VHOST_USER_MAX) { + if (!vhost_message_handlers[request]) + goto skip_to_post_handle; + ret = vhost_message_handlers[request](&dev, &msg); - default: - ret = -1; - break; + switch (ret) { + case VH_RESULT_ERR: + RTE_LOG(ERR, VHOST_CONFIG, + "Processing %s failed.\n", + vhost_message_str[request]); + break; + case VH_RESULT_OK: + RTE_LOG(DEBUG, VHOST_CONFIG, + "Processing %s succeeded.\n", + vhost_message_str[request]); + break; + case VH_RESULT_REPLY: + RTE_LOG(INFO, VHOST_CONFIG, + "Processing %s succeeded and needs reply.\n", + vhost_message_str[request]); + send_vhost_reply(fd, &msg); + break; + } + } else { + RTE_LOG(ERR, VHOST_CONFIG, + "Requested invalid message type %d.\n", request); + ret = VH_RESULT_ERR; } skip_to_post_handle: