From: Yuanhan Liu Date: Sat, 1 Apr 2017 07:22:41 +0000 (+0800) Subject: vhost: use new APIs to handle features X-Git-Tag: spdx-start~3897 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=0917f9d1f059284d4fcb8e6342fd2557d6da9c9b;p=dpdk.git vhost: use new APIs to handle features Signed-off-by: Yuanhan Liu Reviewed-by: Maxime Coquelin --- diff --git a/examples/tep_termination/main.c b/examples/tep_termination/main.c index 20dafdb8fc..8097dcdd44 100644 --- a/examples/tep_termination/main.c +++ b/examples/tep_termination/main.c @@ -1248,12 +1248,14 @@ main(int argc, char *argv[]) rte_eal_remote_launch(switch_worker, mbuf_pool, lcore_id); } - rte_vhost_feature_disable(1ULL << VIRTIO_NET_F_MRG_RXBUF); ret = rte_vhost_driver_register((char *)&dev_basename, 0); if (ret != 0) rte_exit(EXIT_FAILURE, "failed to register vhost driver.\n"); + rte_vhost_driver_disable_features(dev_basename, + 1ULL << VIRTIO_NET_F_MRG_RXBUF); + rte_vhost_driver_callback_register(&virtio_net_device_ops); rte_vhost_driver_session_start(); diff --git a/examples/vhost/main.c b/examples/vhost/main.c index 47899473b6..972a6a8619 100644 --- a/examples/vhost/main.c +++ b/examples/vhost/main.c @@ -328,16 +328,6 @@ port_init(uint8_t port) if (port >= rte_eth_dev_count()) return -1; - if (enable_tx_csum == 0) - rte_vhost_feature_disable(1ULL << VIRTIO_NET_F_CSUM); - - if (enable_tso == 0) { - rte_vhost_feature_disable(1ULL << VIRTIO_NET_F_HOST_TSO4); - rte_vhost_feature_disable(1ULL << VIRTIO_NET_F_HOST_TSO6); - rte_vhost_feature_disable(1ULL << VIRTIO_NET_F_GUEST_TSO4); - rte_vhost_feature_disable(1ULL << VIRTIO_NET_F_GUEST_TSO6); - } - rx_rings = (uint16_t)dev_info.max_rx_queues; /* Configure ethernet device. */ retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf); @@ -531,7 +521,6 @@ us_vhost_parse_args(int argc, char **argv) vmdq_conf_default.rx_adv_conf.vmdq_rx_conf.rx_mode = ETH_VMDQ_ACCEPT_BROADCAST | ETH_VMDQ_ACCEPT_MULTICAST; - rte_vhost_feature_enable(1ULL << VIRTIO_NET_F_CTRL_RX); break; @@ -1509,9 +1498,6 @@ main(int argc, char *argv[]) RTE_LCORE_FOREACH_SLAVE(lcore_id) rte_eal_remote_launch(switch_worker, NULL, lcore_id); - if (mergeable == 0) - rte_vhost_feature_disable(1ULL << VIRTIO_NET_F_MRG_RXBUF); - if (client_mode) flags |= RTE_VHOST_USER_CLIENT; @@ -1520,13 +1506,38 @@ main(int argc, char *argv[]) /* Register vhost user driver to handle vhost messages. */ for (i = 0; i < nb_sockets; i++) { - ret = rte_vhost_driver_register - (socket_files + i * PATH_MAX, flags); + char *file = socket_files + i * PATH_MAX; + ret = rte_vhost_driver_register(file, flags); if (ret != 0) { unregister_drivers(i); rte_exit(EXIT_FAILURE, "vhost driver register failure.\n"); } + if (mergeable == 0) { + rte_vhost_driver_disable_features(file, + 1ULL << VIRTIO_NET_F_MRG_RXBUF); + } + + if (enable_tx_csum == 0) { + rte_vhost_driver_disable_features(file, + 1ULL << VIRTIO_NET_F_CSUM); + } + + if (enable_tso == 0) { + rte_vhost_driver_disable_features(file, + 1ULL << VIRTIO_NET_F_HOST_TSO4); + rte_vhost_driver_disable_features(file, + 1ULL << VIRTIO_NET_F_HOST_TSO6); + rte_vhost_driver_disable_features(file, + 1ULL << VIRTIO_NET_F_GUEST_TSO4); + rte_vhost_driver_disable_features(file, + 1ULL << VIRTIO_NET_F_GUEST_TSO6); + } + + if (promiscuous) { + rte_vhost_driver_enable_features(file, + 1ULL << VIRTIO_NET_F_CTRL_RX); + } } rte_vhost_driver_callback_register(&virtio_net_device_ops); diff --git a/lib/librte_vhost/rte_vhost_version.map b/lib/librte_vhost/rte_vhost_version.map index ca6259c195..1150017313 100644 --- a/lib/librte_vhost/rte_vhost_version.map +++ b/lib/librte_vhost/rte_vhost_version.map @@ -7,9 +7,6 @@ DPDK_2.0 { rte_vhost_driver_session_start; rte_vhost_enable_guest_notification; rte_vhost_enqueue_burst; - rte_vhost_feature_disable; - rte_vhost_feature_enable; - rte_vhost_feature_get; local: *; }; diff --git a/lib/librte_vhost/rte_virtio_net.h b/lib/librte_vhost/rte_virtio_net.h index 7bb8af61a8..08bf965aac 100644 --- a/lib/librte_vhost/rte_virtio_net.h +++ b/lib/librte_vhost/rte_virtio_net.h @@ -70,19 +70,6 @@ struct virtio_net_device_ops { void *reserved[5]; /**< Reserved for future extension */ }; -/** - * Disable features in feature_mask. Returns 0 on success. - */ -int rte_vhost_feature_disable(uint64_t feature_mask); - -/** - * Enable features in feature_mask. Returns 0 on success. - */ -int rte_vhost_feature_enable(uint64_t feature_mask); - -/* Returns currently supported vhost features */ -uint64_t rte_vhost_feature_get(void); - int rte_vhost_enable_guest_notification(int vid, uint16_t queue_id, int enable); /** diff --git a/lib/librte_vhost/socket.c b/lib/librte_vhost/socket.c index 53663f4bda..416b1fdc3e 100644 --- a/lib/librte_vhost/socket.c +++ b/lib/librte_vhost/socket.c @@ -579,7 +579,13 @@ rte_vhost_driver_get_features(const char *path, uint64_t *features) *features = vsocket->features; pthread_mutex_unlock(&vhost_user.mutex); - return vsocket ? 0 : -1; + if (!vsocket) { + RTE_LOG(ERR, VHOST_CONFIG, + "socket file %s is not registered yet.\n", path); + return -1; + } else { + return 0; + } } /* @@ -613,6 +619,21 @@ rte_vhost_driver_register(const char *path, uint64_t flags) pthread_mutex_init(&vsocket->conn_mutex, NULL); vsocket->dequeue_zero_copy = flags & RTE_VHOST_USER_DEQUEUE_ZERO_COPY; + /* + * Set the supported features correctly for the builtin vhost-user + * net driver. + * + * Applications know nothing about features the builtin virtio net + * driver (virtio_net.c) supports, thus it's not possible for them + * to invoke rte_vhost_driver_set_features(). To workaround it, here + * we set it unconditionally. If the application want to implement + * another vhost-user driver (say SCSI), it should call the + * rte_vhost_driver_set_features(), which will overwrite following + * two values. + */ + vsocket->supported_features = VIRTIO_NET_SUPPORTED_FEATURES; + vsocket->features = VIRTIO_NET_SUPPORTED_FEATURES; + if ((flags & RTE_VHOST_USER_CLIENT) != 0) { vsocket->reconnect = !(flags & RTE_VHOST_USER_NO_RECONNECT); if (vsocket->reconnect && reconn_tid == 0) { diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c index dfb08dba49..7b40a922a6 100644 --- a/lib/librte_vhost/vhost.c +++ b/lib/librte_vhost/vhost.c @@ -49,28 +49,6 @@ #include "vhost.h" -#define VHOST_USER_F_PROTOCOL_FEATURES 30 - -/* Features supported by this lib. */ -#define VHOST_SUPPORTED_FEATURES ((1ULL << VIRTIO_NET_F_MRG_RXBUF) | \ - (1ULL << VIRTIO_NET_F_CTRL_VQ) | \ - (1ULL << VIRTIO_NET_F_CTRL_RX) | \ - (1ULL << VIRTIO_NET_F_GUEST_ANNOUNCE) | \ - (1ULL << VIRTIO_NET_F_MQ) | \ - (1ULL << VIRTIO_F_VERSION_1) | \ - (1ULL << VHOST_F_LOG_ALL) | \ - (1ULL << VHOST_USER_F_PROTOCOL_FEATURES) | \ - (1ULL << VIRTIO_NET_F_HOST_TSO4) | \ - (1ULL << VIRTIO_NET_F_HOST_TSO6) | \ - (1ULL << VIRTIO_NET_F_CSUM) | \ - (1ULL << VIRTIO_NET_F_GUEST_CSUM) | \ - (1ULL << VIRTIO_NET_F_GUEST_TSO4) | \ - (1ULL << VIRTIO_NET_F_GUEST_TSO6) | \ - (1ULL << VIRTIO_RING_F_INDIRECT_DESC) | \ - (1ULL << VIRTIO_NET_F_MTU)) - -uint64_t VHOST_FEATURES = VHOST_SUPPORTED_FEATURES; - struct virtio_net *vhost_devices[MAX_VHOST_DEVICE]; /* device ops to add/remove device to/from data core. */ @@ -419,26 +397,6 @@ rte_vhost_enable_guest_notification(int vid, uint16_t queue_id, int enable) return 0; } -uint64_t rte_vhost_feature_get(void) -{ - return VHOST_FEATURES; -} - -int rte_vhost_feature_disable(uint64_t feature_mask) -{ - VHOST_FEATURES = VHOST_FEATURES & ~feature_mask; - return 0; -} - -int rte_vhost_feature_enable(uint64_t feature_mask) -{ - if ((feature_mask & VHOST_SUPPORTED_FEATURES) == feature_mask) { - VHOST_FEATURES = VHOST_FEATURES | feature_mask; - return 0; - } - return -1; -} - /* * Register ops so that we can add/remove device to data core. */ diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h index daa9328144..692691b897 100644 --- a/lib/librte_vhost/vhost.h +++ b/lib/librte_vhost/vhost.h @@ -133,6 +133,27 @@ struct vhost_virtqueue { #define VIRTIO_F_VERSION_1 32 #endif +#define VHOST_USER_F_PROTOCOL_FEATURES 30 + +/* Features supported by this builtin vhost-user net driver. */ +#define VIRTIO_NET_SUPPORTED_FEATURES ((1ULL << VIRTIO_NET_F_MRG_RXBUF) | \ + (1ULL << VIRTIO_NET_F_CTRL_VQ) | \ + (1ULL << VIRTIO_NET_F_CTRL_RX) | \ + (1ULL << VIRTIO_NET_F_GUEST_ANNOUNCE) | \ + (1ULL << VIRTIO_NET_F_MQ) | \ + (1ULL << VIRTIO_F_VERSION_1) | \ + (1ULL << VHOST_F_LOG_ALL) | \ + (1ULL << VHOST_USER_F_PROTOCOL_FEATURES) | \ + (1ULL << VIRTIO_NET_F_HOST_TSO4) | \ + (1ULL << VIRTIO_NET_F_HOST_TSO6) | \ + (1ULL << VIRTIO_NET_F_CSUM) | \ + (1ULL << VIRTIO_NET_F_GUEST_CSUM) | \ + (1ULL << VIRTIO_NET_F_GUEST_TSO4) | \ + (1ULL << VIRTIO_NET_F_GUEST_TSO6) | \ + (1ULL << VIRTIO_RING_F_INDIRECT_DESC) | \ + (1ULL << VIRTIO_NET_F_MTU)) + + struct guest_page { uint64_t guest_phys_addr; uint64_t host_phys_addr; diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c index 1806c0ff76..65fd0fc3cc 100644 --- a/lib/librte_vhost/vhost_user.c +++ b/lib/librte_vhost/vhost_user.c @@ -147,9 +147,12 @@ vhost_user_reset_owner(struct virtio_net *dev) * The features that we support are requested. */ static uint64_t -vhost_user_get_features(void) +vhost_user_get_features(struct virtio_net *dev) { - return VHOST_FEATURES; + uint64_t features = 0; + + rte_vhost_driver_get_features(dev->ifname, &features); + return features; } /* @@ -158,7 +161,10 @@ vhost_user_get_features(void) static int vhost_user_set_features(struct virtio_net *dev, uint64_t features) { - if (features & ~VHOST_FEATURES) + uint64_t vhost_features = 0; + + rte_vhost_driver_get_features(dev->ifname, &vhost_features); + if (features & ~vhost_features) return -1; dev->features = features; @@ -1006,7 +1012,7 @@ vhost_user_msg_handler(int vid, int fd) switch (msg.request) { case VHOST_USER_GET_FEATURES: - msg.payload.u64 = vhost_user_get_features(); + msg.payload.u64 = vhost_user_get_features(dev); msg.size = sizeof(msg.payload.u64); send_vhost_message(fd, &msg); break;