From patchwork Thu Mar 18 22:35:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Coquelin X-Patchwork-Id: 89512 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id ED425A0561; Thu, 18 Mar 2021 23:35:47 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 4E8C6140F7A; Thu, 18 Mar 2021 23:35:43 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [63.128.21.124]) by mails.dpdk.org (Postfix) with ESMTP id 06B4040698 for ; Thu, 18 Mar 2021 23:35:40 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1616106940; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7xcrkadB1qGzY6dpc4GsF2QtUz26/iLF6RbWMM+cs/A=; b=QKbu8wcJ84YPZTgaJBI+IBd1RKt4cLVsLmd75E5Si88vpSb+T+blTIwp+RajDiS918gcpF bbHZEPfPTLs4vWNrn/LQvJ3JWj24lKHoUPKE2VydgTo2bhmOvRs2np3Q7pKrumIHgNq4+K S+UzL6rvvvyOKRSjPUPkK66YDos/2RM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-374-_O7esr4NN8yjKLuIoPZaWA-1; Thu, 18 Mar 2021 18:35:38 -0400 X-MC-Unique: _O7esr4NN8yjKLuIoPZaWA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 548C310866A5; Thu, 18 Mar 2021 22:35:37 +0000 (UTC) Received: from max-t490s.redhat.com (unknown [10.36.110.14]) by smtp.corp.redhat.com (Postfix) with ESMTP id E2E3E610F1; Thu, 18 Mar 2021 22:35:35 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, chenbo.xia@intel.com, amorenoz@redhat.com, david.marchand@redhat.com Cc: Maxime Coquelin Date: Thu, 18 Mar 2021 23:35:24 +0100 Message-Id: <20210318223526.168614-2-maxime.coquelin@redhat.com> In-Reply-To: <20210318223526.168614-1-maxime.coquelin@redhat.com> References: <20210318223526.168614-1-maxime.coquelin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=maxime.coquelin@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Subject: [dpdk-dev] [RFC 1/3] net/virtio: keep device and frontend features separated X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 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" This patch is preliminary rework to add support for getting and setting device's config space. In order to get or set a device config such as its MAC address, we need to know whether the device itself support the feature, or if it is emulated by the frontend. Signed-off-by: Maxime Coquelin --- drivers/net/virtio/virtio_user/virtio_user_dev.c | 10 ++-------- drivers/net/virtio/virtio_user_ethdev.c | 5 +++-- 2 files changed, 5 insertions(+), 10 deletions(-) diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c index 1b54d55bd8..8757a23f6e 100644 --- a/drivers/net/virtio/virtio_user/virtio_user_dev.c +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c @@ -572,11 +572,7 @@ virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues, if (dev->backend_type == VIRTIO_USER_BACKEND_VHOST_USER) dev->frontend_features |= (1ull << VIRTIO_NET_F_STATUS); - /* - * Device features = - * (frontend_features | backend_features) & ~unsupported_features; - */ - dev->device_features |= dev->frontend_features; + dev->frontend_features &= ~dev->unsupported_features; dev->device_features &= ~dev->unsupported_features; if (rte_mem_event_callback_register(VIRTIO_USER_MEM_EVENT_CLB_NAME, @@ -940,12 +936,10 @@ virtio_user_dev_server_reconnect(struct virtio_user_dev *dev) return -1; } - dev->device_features |= dev->frontend_features; - /* unmask vhost-user unsupported features */ dev->device_features &= ~(dev->unsupported_features); - dev->features &= dev->device_features; + dev->features &= (dev->device_features | dev->frontend_features); /* For packed ring, resetting queues is required in reconnection. */ if (virtio_with_packed_queue(hw) && diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c index 1810a54694..bb36316186 100644 --- a/drivers/net/virtio/virtio_user_ethdev.c +++ b/drivers/net/virtio/virtio_user_ethdev.c @@ -110,7 +110,8 @@ virtio_user_get_features(struct virtio_hw *hw) struct virtio_user_dev *dev = virtio_user_get_dev(hw); /* unmask feature bits defined in vhost user protocol */ - return dev->device_features & VIRTIO_PMD_SUPPORTED_GUEST_FEATURES; + return (dev->device_features | dev->frontend_features) & + VIRTIO_PMD_SUPPORTED_GUEST_FEATURES; } static void @@ -118,7 +119,7 @@ virtio_user_set_features(struct virtio_hw *hw, uint64_t features) { struct virtio_user_dev *dev = virtio_user_get_dev(hw); - dev->features = features & dev->device_features; + dev->features = features & (dev->device_features | dev->frontend_features); } static int From patchwork Thu Mar 18 22:35:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Coquelin X-Patchwork-Id: 89513 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id B24A1A0561; Thu, 18 Mar 2021 23:35:53 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 8300C140F89; Thu, 18 Mar 2021 23:35:45 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mails.dpdk.org (Postfix) with ESMTP id 962FF140F86 for ; Thu, 18 Mar 2021 23:35:44 +0100 (CET) DKIM-Signature: v=1; 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Thu, 18 Mar 2021 22:35:41 +0000 (UTC) Received: from max-t490s.redhat.com (unknown [10.36.110.14]) by smtp.corp.redhat.com (Postfix) with ESMTP id A308F610F1; Thu, 18 Mar 2021 22:35:37 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, chenbo.xia@intel.com, amorenoz@redhat.com, david.marchand@redhat.com Cc: Maxime Coquelin Date: Thu, 18 Mar 2021 23:35:25 +0100 Message-Id: <20210318223526.168614-3-maxime.coquelin@redhat.com> In-Reply-To: <20210318223526.168614-1-maxime.coquelin@redhat.com> References: <20210318223526.168614-1-maxime.coquelin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=maxime.coquelin@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Subject: [dpdk-dev] [RFC 2/3] net/virtio: add device config support to vDPA X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 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" This patch introduces two virtio-user callbacks to get and set device's config, and implements it for vDPA backends. Signed-off-by: Maxime Coquelin --- drivers/net/virtio/virtio_user/vhost.h | 3 + drivers/net/virtio/virtio_user/vhost_vdpa.c | 69 +++++++++++++++++++++ 2 files changed, 72 insertions(+) diff --git a/drivers/net/virtio/virtio_user/vhost.h b/drivers/net/virtio/virtio_user/vhost.h index c49e88036d..dfbf6be033 100644 --- a/drivers/net/virtio/virtio_user/vhost.h +++ b/drivers/net/virtio/virtio_user/vhost.h @@ -79,6 +79,9 @@ struct virtio_user_backend_ops { int (*set_vring_addr)(struct virtio_user_dev *dev, struct vhost_vring_addr *addr); int (*get_status)(struct virtio_user_dev *dev, uint8_t *status); int (*set_status)(struct virtio_user_dev *dev, uint8_t status); + int (*get_config)(struct virtio_user_dev *dev, uint8_t *data, uint32_t off, uint32_t len); + int (*set_config)(struct virtio_user_dev *dev, const uint8_t *data, uint32_t off, + uint32_t len); int (*enable_qp)(struct virtio_user_dev *dev, uint16_t pair_idx, int enable); int (*dma_map)(struct virtio_user_dev *dev, void *addr, uint64_t iova, size_t len); int (*dma_unmap)(struct virtio_user_dev *dev, void *addr, uint64_t iova, size_t len); diff --git a/drivers/net/virtio/virtio_user/vhost_vdpa.c b/drivers/net/virtio/virtio_user/vhost_vdpa.c index e2d6d3504d..59bc712d48 100644 --- a/drivers/net/virtio/virtio_user/vhost_vdpa.c +++ b/drivers/net/virtio/virtio_user/vhost_vdpa.c @@ -41,6 +41,8 @@ struct vhost_vdpa_data { #define VHOST_VDPA_GET_DEVICE_ID _IOR(VHOST_VIRTIO, 0x70, __u32) #define VHOST_VDPA_GET_STATUS _IOR(VHOST_VIRTIO, 0x71, __u8) #define VHOST_VDPA_SET_STATUS _IOW(VHOST_VIRTIO, 0x72, __u8) +#define VHOST_VDPA_GET_CONFIG _IOR(VHOST_VIRTIO, 0x73, struct vhost_vdpa_config) +#define VHOST_VDPA_SET_CONFIG _IOW(VHOST_VIRTIO, 0x74, struct vhost_vdpa_config) #define VHOST_VDPA_SET_VRING_ENABLE _IOW(VHOST_VIRTIO, 0x75, struct vhost_vring_state) #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) #define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) @@ -65,6 +67,12 @@ struct vhost_iotlb_msg { #define VHOST_IOTLB_MSG_V2 0x2 +struct vhost_vdpa_config { + uint32_t off; + uint32_t len; + uint8_t buf[0]; +}; + struct vhost_msg { uint32_t type; uint32_t reserved; @@ -440,6 +448,65 @@ vhost_vdpa_set_status(struct virtio_user_dev *dev, uint8_t status) return vhost_vdpa_ioctl(data->vhostfd, VHOST_VDPA_SET_STATUS, &status); } +static int +vhost_vdpa_get_config(struct virtio_user_dev *dev, uint8_t *data, uint32_t off, uint32_t len) +{ + struct vhost_vdpa_data *vdpa_data = dev->backend_data; + struct vhost_vdpa_config *config; + int ret = 0; + + config = malloc(sizeof(*config) + len); + if (!config) { + PMD_DRV_LOG(ERR, "Failed to allocate vDPA config data\n"); + return -1; + } + + config->off = off; + config->len = len; + + ret = vhost_vdpa_ioctl(vdpa_data->vhostfd, VHOST_VDPA_GET_CONFIG, config); + if (ret) { + PMD_DRV_LOG(ERR, "Failed to get vDPA config (offset %x, len %x)\n", off, len); + ret = -1; + goto out; + } + + memcpy(data, config->buf, len); +out: + free(config); + + return ret; +} + +static int +vhost_vdpa_set_config(struct virtio_user_dev *dev, const uint8_t *data, uint32_t off, uint32_t len) +{ + struct vhost_vdpa_data *vdpa_data = dev->backend_data; + struct vhost_vdpa_config *config; + int ret = 0; + + config = malloc(sizeof(*config) + len); + if (!config) { + PMD_DRV_LOG(ERR, "Failed to allocate vDPA config data\n"); + return -1; + } + + config->off = off; + config->len = len; + + memcpy(config->buf, data, len); + + ret = vhost_vdpa_ioctl(vdpa_data->vhostfd, VHOST_VDPA_SET_CONFIG, config); + if (ret) { + PMD_DRV_LOG(ERR, "Failed to set vDPA config (offset %x, len %x)\n", off, len); + ret = -1; + } + + free(config); + + return ret; +} + /** * Set up environment to talk with a vhost vdpa backend. * @@ -559,6 +626,8 @@ struct virtio_user_backend_ops virtio_ops_vdpa = { .set_vring_addr = vhost_vdpa_set_vring_addr, .get_status = vhost_vdpa_get_status, .set_status = vhost_vdpa_set_status, + .get_config = vhost_vdpa_get_config, + .set_config = vhost_vdpa_set_config, .enable_qp = vhost_vdpa_enable_queue_pair, .dma_map = vhost_vdpa_dma_map_batch, .dma_unmap = vhost_vdpa_dma_unmap_batch, From patchwork Thu Mar 18 22:35:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Coquelin X-Patchwork-Id: 89514 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 626DFA0561; Thu, 18 Mar 2021 23:35:59 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id B5434140F9C; Thu, 18 Mar 2021 23:35:47 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mails.dpdk.org (Postfix) with ESMTP id 5AD32140F99 for ; Thu, 18 Mar 2021 23:35:46 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1616106945; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; 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auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=maxime.coquelin@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Subject: [dpdk-dev] [RFC 3/3] net/virtio: add MAC device config getter and setter X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 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" This patch uses the new device config ops to get and set the MAC address if supported. If a valid MAC address is passed as devarg of the Virtio-user PMD, the driver will try to store it in the device config space. Otherwise the one provided in the device config space will be used, if available. Signed-off-by: Maxime Coquelin --- .../net/virtio/virtio_user/virtio_user_dev.c | 78 ++++++++++++++++--- .../net/virtio/virtio_user/virtio_user_dev.h | 2 + drivers/net/virtio/virtio_user_ethdev.c | 7 +- 3 files changed, 74 insertions(+), 13 deletions(-) diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c index 8757a23f6e..61517692b3 100644 --- a/drivers/net/virtio/virtio_user/virtio_user_dev.c +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c @@ -259,20 +259,76 @@ int virtio_user_stop_device(struct virtio_user_dev *dev) return -1; } -static inline void -parse_mac(struct virtio_user_dev *dev, const char *mac) +int +virtio_user_dev_set_mac(struct virtio_user_dev *dev) { - struct rte_ether_addr tmp; + int ret = 0; - if (!mac) - return; + if (!(dev->device_features & (1ULL << VIRTIO_NET_F_MAC))) + return -ENOTSUP; + + if (!dev->ops->set_config) + return -ENOTSUP; + + ret = dev->ops->set_config(dev, dev->mac_addr, + offsetof(struct virtio_net_config, mac), + RTE_ETHER_ADDR_LEN); + if (ret) + PMD_DRV_LOG(ERR, "(%s) Failed to set MAC address in device\n", dev->path); + + return ret; +} + +int +virtio_user_dev_get_mac(struct virtio_user_dev *dev) +{ + int ret = 0; + + if (!(dev->device_features & (1ULL << VIRTIO_NET_F_MAC))) + return -ENOTSUP; + + if (!dev->ops->get_config) + return -ENOTSUP; + + ret = dev->ops->get_config(dev, dev->mac_addr, + offsetof(struct virtio_net_config, mac), + RTE_ETHER_ADDR_LEN); + if (ret) + PMD_DRV_LOG(ERR, "(%s) Failed to get MAC address from device\n", dev->path); - if (rte_ether_unformat_addr(mac, &tmp) == 0) { - memcpy(dev->mac_addr, &tmp, RTE_ETHER_ADDR_LEN); + return ret; +} + +static void +virtio_user_dev_init_mac(struct virtio_user_dev *dev, const char *mac) +{ + struct rte_ether_addr cmdline_mac; + int ret; + + if (mac && rte_ether_unformat_addr(mac, &cmdline_mac) == 0) { + /* + * MAC address was passed from command-line, try to store + * it in the device if it supports it. Otherwise try to use + * the device one. + */ + memcpy(dev->mac_addr, &cmdline_mac, RTE_ETHER_ADDR_LEN); dev->mac_specified = 1; + + /* Setting MAC may fail, continue to get the device one in this case */ + virtio_user_dev_set_mac(dev); + ret = virtio_user_dev_get_mac(dev); + if (ret == -ENOTSUP) + return; + + if (memcmp(&cmdline_mac, dev->mac_addr, RTE_ETHER_ADDR_LEN)) + PMD_DRV_LOG(INFO, "(%s) Device MAC update failed\n", dev->path); } else { - /* ignore the wrong mac, use random mac */ - PMD_DRV_LOG(ERR, "wrong format of mac: %s", mac); + ret = virtio_user_dev_get_mac(dev); + if (ret) + PMD_DRV_LOG(ERR, "(%s) No valid MAC in devargs or device, use random\n", + dev->path); + else + dev->mac_specified = 1; } } @@ -508,8 +564,6 @@ virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues, dev->unsupported_features = 0; dev->backend_type = backend_type; - parse_mac(dev, mac); - if (*ifname) { dev->ifname = *ifname; *ifname = NULL; @@ -537,6 +591,8 @@ virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues, return -1; } + virtio_user_dev_init_mac(dev, mac); + if (!mrg_rxbuf) dev->unsupported_features |= (1ull << VIRTIO_NET_F_MRG_RXBUF); diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.h b/drivers/net/virtio/virtio_user/virtio_user_dev.h index 8a62f7ea79..03bcf95970 100644 --- a/drivers/net/virtio/virtio_user/virtio_user_dev.h +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.h @@ -78,6 +78,8 @@ uint8_t virtio_user_handle_mq(struct virtio_user_dev *dev, uint16_t q_pairs); int virtio_user_dev_set_status(struct virtio_user_dev *dev, uint8_t status); int virtio_user_dev_update_status(struct virtio_user_dev *dev); int virtio_user_dev_update_link_state(struct virtio_user_dev *dev); +int virtio_user_dev_set_mac(struct virtio_user_dev *dev); +int virtio_user_dev_get_mac(struct virtio_user_dev *dev); void virtio_user_dev_delayed_handler(void *param); int virtio_user_dev_server_reconnect(struct virtio_user_dev *dev); extern const char * const virtio_user_backend_strings[]; diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c index bb36316186..34c8e7a9b5 100644 --- a/drivers/net/virtio/virtio_user_ethdev.c +++ b/drivers/net/virtio/virtio_user_ethdev.c @@ -60,12 +60,15 @@ virtio_user_write_dev_config(struct virtio_hw *hw, size_t offset, struct virtio_user_dev *dev = virtio_user_get_dev(hw); if ((offset == offsetof(struct virtio_net_config, mac)) && - (length == RTE_ETHER_ADDR_LEN)) + (length == RTE_ETHER_ADDR_LEN)) { for (i = 0; i < RTE_ETHER_ADDR_LEN; ++i) dev->mac_addr[i] = ((const uint8_t *)src)[i]; - else + virtio_user_dev_set_mac(dev); + virtio_user_dev_get_mac(dev); + } else { PMD_DRV_LOG(ERR, "not supported offset=%zu, len=%d", offset, length); + } } static void