X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fmemif%2Fmemif_socket.c;h=5b373738e6651eb97dd0cbe99bee1d154148c883;hb=93dfebd2c237217ab22c2acb8795c61da6e50870;hp=ad5e30b96ef09a47e9ba32769b9b2d9268bb113e;hpb=43b815d881885a63d8d4691f07f7a93e1a01f6d4;p=dpdk.git diff --git a/drivers/net/memif/memif_socket.c b/drivers/net/memif/memif_socket.c index ad5e30b96e..5b373738e6 100644 --- a/drivers/net/memif/memif_socket.c +++ b/drivers/net/memif/memif_socket.c @@ -13,8 +13,8 @@ #include #include #include -#include -#include +#include +#include #include #include #include @@ -143,8 +143,8 @@ memif_msg_enq_hello(struct memif_control_channel *cc) e->msg.type = MEMIF_MSG_TYPE_HELLO; h->min_version = MEMIF_VERSION; h->max_version = MEMIF_VERSION; - h->max_s2m_ring = ETH_MEMIF_MAX_NUM_Q_PAIRS; - h->max_m2s_ring = ETH_MEMIF_MAX_NUM_Q_PAIRS; + h->max_c2s_ring = ETH_MEMIF_MAX_NUM_Q_PAIRS; + h->max_s2c_ring = ETH_MEMIF_MAX_NUM_Q_PAIRS; h->max_region = ETH_MEMIF_MAX_REGION_NUM - 1; h->max_log2_ring_size = ETH_MEMIF_MAX_LOG2_RING_SIZE; @@ -165,10 +165,10 @@ memif_msg_receive_hello(struct rte_eth_dev *dev, memif_msg_t *msg) } /* Set parameters for active connection */ - pmd->run.num_s2m_rings = RTE_MIN(h->max_s2m_ring + 1, - pmd->cfg.num_s2m_rings); - pmd->run.num_m2s_rings = RTE_MIN(h->max_m2s_ring + 1, - pmd->cfg.num_m2s_rings); + pmd->run.num_c2s_rings = RTE_MIN(h->max_c2s_ring + 1, + pmd->cfg.num_c2s_rings); + pmd->run.num_s2c_rings = RTE_MIN(h->max_s2c_ring + 1, + pmd->cfg.num_s2c_rings); pmd->run.log2_ring_size = RTE_MIN(h->max_log2_ring_size, pmd->cfg.log2_ring_size); pmd->run.pkt_buffer_size = pmd->cfg.pkt_buffer_size; @@ -203,7 +203,14 @@ memif_msg_receive_init(struct memif_control_channel *cc, memif_msg_t *msg) dev = elt->dev; pmd = dev->data->dev_private; if (((pmd->flags & ETH_MEMIF_FLAG_DISABLED) == 0) && - pmd->id == i->id) { + (pmd->id == i->id) && (pmd->role == MEMIF_ROLE_SERVER)) { + if (pmd->flags & (ETH_MEMIF_FLAG_CONNECTING | + ETH_MEMIF_FLAG_CONNECTED)) { + memif_msg_enq_disconnect(cc, + "Already connected", 0); + return -1; + } + /* assign control channel to device */ cc->dev = dev; pmd->cc = cc; @@ -215,12 +222,6 @@ memif_msg_receive_init(struct memif_control_channel *cc, memif_msg_t *msg) return -1; } - if (pmd->flags & (ETH_MEMIF_FLAG_CONNECTING | - ETH_MEMIF_FLAG_CONNECTED)) { - memif_msg_enq_disconnect(pmd->cc, - "Already connected", 0); - return -1; - } strlcpy(pmd->remote_name, (char *)i->name, sizeof(pmd->remote_name)); @@ -299,21 +300,21 @@ memif_msg_receive_add_ring(struct rte_eth_dev *dev, memif_msg_t *msg, int fd) } /* check if we have enough queues */ - if (ar->flags & MEMIF_MSG_ADD_RING_FLAG_S2M) { - if (ar->index >= pmd->cfg.num_s2m_rings) { + if (ar->flags & MEMIF_MSG_ADD_RING_FLAG_C2S) { + if (ar->index >= pmd->cfg.num_c2s_rings) { memif_msg_enq_disconnect(pmd->cc, "Invalid ring index", 0); return -1; } - pmd->run.num_s2m_rings++; + pmd->run.num_c2s_rings++; } else { - if (ar->index >= pmd->cfg.num_m2s_rings) { + if (ar->index >= pmd->cfg.num_s2c_rings) { memif_msg_enq_disconnect(pmd->cc, "Invalid ring index", 0); return -1; } - pmd->run.num_m2s_rings++; + pmd->run.num_s2c_rings++; } - mq = (ar->flags & MEMIF_MSG_ADD_RING_FLAG_S2M) ? + mq = (ar->flags & MEMIF_MSG_ADD_RING_FLAG_C2S) ? dev->data->rx_queues[ar->index] : dev->data->tx_queues[ar->index]; mq->intr_handle.fd = fd; @@ -448,7 +449,7 @@ memif_msg_enq_add_ring(struct rte_eth_dev *dev, uint8_t idx, return -1; ar = &e->msg.add_ring; - mq = (type == MEMIF_RING_S2M) ? dev->data->tx_queues[idx] : + mq = (type == MEMIF_RING_C2S) ? dev->data->tx_queues[idx] : dev->data->rx_queues[idx]; e->msg.type = MEMIF_MSG_TYPE_ADD_RING; @@ -457,7 +458,7 @@ memif_msg_enq_add_ring(struct rte_eth_dev *dev, uint8_t idx, ar->offset = mq->ring_offset; ar->region = mq->region; ar->log2_ring_size = mq->log2_ring_size; - ar->flags = (type == MEMIF_RING_S2M) ? MEMIF_MSG_ADD_RING_FLAG_S2M : 0; + ar->flags = (type == MEMIF_RING_C2S) ? MEMIF_MSG_ADD_RING_FLAG_C2S : 0; ar->private_hdr_size = 0; return 0; @@ -528,6 +529,7 @@ memif_disconnect(struct rte_eth_dev *dev) pmd->flags &= ~ETH_MEMIF_FLAG_CONNECTING; pmd->flags &= ~ETH_MEMIF_FLAG_CONNECTED; + rte_spinlock_lock(&pmd->cc_lock); if (pmd->cc != NULL) { /* Clear control message queue (except disconnect message if any). */ for (elt = TAILQ_FIRST(&pmd->cc->msg_queue); elt != NULL; elt = next) { @@ -570,10 +572,11 @@ memif_disconnect(struct rte_eth_dev *dev) "Failed to unregister control channel callback."); } } + rte_spinlock_unlock(&pmd->cc_lock); /* unconfig interrupts */ - for (i = 0; i < pmd->cfg.num_s2m_rings; i++) { - if (pmd->role == MEMIF_ROLE_SLAVE) { + for (i = 0; i < pmd->cfg.num_c2s_rings; i++) { + if (pmd->role == MEMIF_ROLE_CLIENT) { if (dev->data->tx_queues != NULL) mq = dev->data->tx_queues[i]; else @@ -589,8 +592,8 @@ memif_disconnect(struct rte_eth_dev *dev) mq->intr_handle.fd = -1; } } - for (i = 0; i < pmd->cfg.num_m2s_rings; i++) { - if (pmd->role == MEMIF_ROLE_MASTER) { + for (i = 0; i < pmd->cfg.num_s2c_rings; i++) { + if (pmd->role == MEMIF_ROLE_SERVER) { if (dev->data->tx_queues != NULL) mq = dev->data->tx_queues[i]; else @@ -612,7 +615,8 @@ memif_disconnect(struct rte_eth_dev *dev) /* reset connection configuration */ memset(&pmd->run, 0, sizeof(pmd->run)); - MIF_LOG(DEBUG, "Disconnected."); + MIF_LOG(DEBUG, "Disconnected, id: %d, role: %s.", pmd->id, + (pmd->role == MEMIF_ROLE_SERVER) ? "server" : "client"); } static int @@ -642,8 +646,12 @@ memif_msg_receive(struct memif_control_channel *cc) size = recvmsg(cc->intr_handle.fd, &mh, 0); if (size != sizeof(memif_msg_t)) { - MIF_LOG(DEBUG, "Invalid message size."); - memif_msg_enq_disconnect(cc, "Invalid message size", 0); + MIF_LOG(DEBUG, "Invalid message size = %zd", size); + if (size > 0) + /* 0 means end-of-file, negative size means error, + * don't send further disconnect message in such cases. + */ + memif_msg_enq_disconnect(cc, "Invalid message size", 0); return -1; } MIF_LOG(DEBUG, "Received msg type: %u.", msg.type); @@ -686,15 +694,15 @@ memif_msg_receive(struct memif_control_channel *cc) if (ret < 0) goto exit; } - for (i = 0; i < pmd->run.num_s2m_rings; i++) { + for (i = 0; i < pmd->run.num_c2s_rings; i++) { ret = memif_msg_enq_add_ring(cc->dev, i, - MEMIF_RING_S2M); + MEMIF_RING_C2S); if (ret < 0) goto exit; } - for (i = 0; i < pmd->run.num_m2s_rings; i++) { + for (i = 0; i < pmd->run.num_s2c_rings; i++) { ret = memif_msg_enq_add_ring(cc->dev, i, - MEMIF_RING_M2S); + MEMIF_RING_S2C); if (ret < 0) goto exit; } @@ -765,6 +773,7 @@ memif_intr_handler(void *arg) ret = memif_msg_receive(cc); /* if driver failed to assign device */ if (cc->dev == NULL) { + memif_msg_send_from_queue(cc); ret = rte_intr_callback_unregister_pending(&cc->intr_handle, memif_intr_handler, cc, @@ -853,10 +862,10 @@ memif_listener_handler(void *arg) } static struct memif_socket * -memif_socket_create(char *key, uint8_t listener) +memif_socket_create(char *key, uint8_t listener, bool is_abstract) { struct memif_socket *sock; - struct sockaddr_un un; + struct sockaddr_un un = { 0 }; int sockfd; int ret; int on = 1; @@ -877,7 +886,13 @@ memif_socket_create(char *key, uint8_t listener) goto error; un.sun_family = AF_UNIX; - strlcpy(un.sun_path, sock->filename, MEMIF_SOCKET_UN_SIZE); + if (is_abstract) { + /* abstract address */ + un.sun_path[0] = '\0'; + strlcpy(un.sun_path + 1, sock->filename, MEMIF_SOCKET_UN_SIZE - 1); + } else { + strlcpy(un.sun_path, sock->filename, MEMIF_SOCKET_UN_SIZE); + } ret = setsockopt(sockfd, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on)); @@ -954,7 +969,8 @@ memif_socket_init(struct rte_eth_dev *dev, const char *socket_filename) ret = rte_hash_lookup_data(hash, key, (void **)&socket); if (ret < 0) { socket = memif_socket_create(key, - (pmd->role == MEMIF_ROLE_SLAVE) ? 0 : 1); + (pmd->role == MEMIF_ROLE_CLIENT) ? 0 : 1, + pmd->flags & ETH_MEMIF_FLAG_SOCKET_ABSTRACT); if (socket == NULL) return -1; ret = rte_hash_add_key_data(hash, key, socket); @@ -965,20 +981,11 @@ memif_socket_init(struct rte_eth_dev *dev, const char *socket_filename) } pmd->socket_filename = socket->filename; - if (socket->listener != 0 && pmd->role == MEMIF_ROLE_SLAVE) { - MIF_LOG(ERR, "Socket is a listener."); - return -1; - } else if ((socket->listener == 0) && (pmd->role == MEMIF_ROLE_MASTER)) { - MIF_LOG(ERR, "Socket is not a listener."); - return -1; - } - TAILQ_FOREACH(elt, &socket->dev_queue, next) { tmp_pmd = elt->dev->data->dev_private; - if (tmp_pmd->id == pmd->id) { - MIF_LOG(ERR, "Memif device with id %d already " - "exists on socket %s", - pmd->id, socket->filename); + if (tmp_pmd->id == pmd->id && tmp_pmd->role == pmd->role) { + MIF_LOG(ERR, "Two interfaces with the same id (%d) can " + "not have the same role.", pmd->id); return -1; } } @@ -1025,7 +1032,7 @@ memif_socket_remove_device(struct rte_eth_dev *dev) /* remove socket, if this was the last device using it */ if (TAILQ_EMPTY(&socket->dev_queue)) { rte_hash_del_key(hash, socket->filename); - if (socket->listener) { + if (socket->listener && !(pmd->flags & ETH_MEMIF_FLAG_SOCKET_ABSTRACT)) { /* remove listener socket file, * so we can create new one later. */ @@ -1039,7 +1046,7 @@ memif_socket_remove_device(struct rte_eth_dev *dev) } int -memif_connect_master(struct rte_eth_dev *dev) +memif_connect_server(struct rte_eth_dev *dev) { struct pmd_internals *pmd = dev->data->dev_private; @@ -1050,11 +1057,11 @@ memif_connect_master(struct rte_eth_dev *dev) } int -memif_connect_slave(struct rte_eth_dev *dev) +memif_connect_client(struct rte_eth_dev *dev) { int sockfd; int ret; - struct sockaddr_un sun; + struct sockaddr_un sun = { 0 }; struct pmd_internals *pmd = dev->data->dev_private; memset(pmd->local_disc_string, 0, ETH_MEMIF_DISC_STRING_SIZE); @@ -1068,8 +1075,13 @@ memif_connect_slave(struct rte_eth_dev *dev) } sun.sun_family = AF_UNIX; - - memcpy(sun.sun_path, pmd->socket_filename, sizeof(sun.sun_path) - 1); + if (pmd->flags & ETH_MEMIF_FLAG_SOCKET_ABSTRACT) { + /* abstract address */ + sun.sun_path[0] = '\0'; + strlcpy(sun.sun_path + 1, pmd->socket_filename, MEMIF_SOCKET_UN_SIZE - 1); + } else { + strlcpy(sun.sun_path, pmd->socket_filename, MEMIF_SOCKET_UN_SIZE); + } ret = connect(sockfd, (struct sockaddr *)&sun, sizeof(struct sockaddr_un));