From: Jianfeng Tan Date: Tue, 24 Apr 2018 05:51:23 +0000 (+0000) Subject: drivers/net: do not use private ethdev data X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=5f19dee604ed5760d819743d1d364493ead2aae6;p=dpdk.git drivers/net: do not use private ethdev data We introduced private rte_eth_dev_data to allow vdev to be created both in primary process and secondary process(es). This is not friendly to multi-process model, for example, it leads to port id contention issue if two processes both find the data entry is free. And to get stats of primary vdev in secondary, we must allocate from the pre-defined array so that we can find it. Suggested-by: Bruce Richardson Signed-off-by: Jianfeng Tan Reviewed-by: Qi Zhang --- diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c index 57eccfd047..110e8a5cc6 100644 --- a/drivers/net/af_packet/rte_eth_af_packet.c +++ b/drivers/net/af_packet/rte_eth_af_packet.c @@ -564,25 +564,17 @@ rte_pmd_init_internals(struct rte_vdev_device *dev, RTE_LOG(ERR, PMD, "%s: no interface specified for AF_PACKET ethdev\n", name); - goto error_early; + return -1; } RTE_LOG(INFO, PMD, "%s: creating AF_PACKET-backed ethdev on numa socket %u\n", name, numa_node); - /* - * now do all data allocation - for eth_dev structure, dummy pci driver - * and internal (private) data - */ - data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node); - if (data == NULL) - goto error_early; - *internals = rte_zmalloc_socket(name, sizeof(**internals), 0, numa_node); if (*internals == NULL) - goto error_early; + return -1; for (q = 0; q < nb_queues; q++) { (*internals)->rx_queue[q].map = MAP_FAILED; @@ -604,24 +596,24 @@ rte_pmd_init_internals(struct rte_vdev_device *dev, RTE_LOG(ERR, PMD, "%s: I/F name too long (%s)\n", name, pair->value); - goto error_early; + return -1; } if (ioctl(sockfd, SIOCGIFINDEX, &ifr) == -1) { RTE_LOG(ERR, PMD, "%s: ioctl failed (SIOCGIFINDEX)\n", name); - goto error_early; + return -1; } (*internals)->if_name = strdup(pair->value); if ((*internals)->if_name == NULL) - goto error_early; + return -1; (*internals)->if_index = ifr.ifr_ifindex; if (ioctl(sockfd, SIOCGIFHWADDR, &ifr) == -1) { RTE_LOG(ERR, PMD, "%s: ioctl failed (SIOCGIFHWADDR)\n", name); - goto error_early; + return -1; } memcpy(&(*internals)->eth_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN); @@ -775,14 +767,13 @@ rte_pmd_init_internals(struct rte_vdev_device *dev, (*internals)->nb_queues = nb_queues; - rte_memcpy(data, (*eth_dev)->data, sizeof(*data)); + data = (*eth_dev)->data; data->dev_private = *internals; data->nb_rx_queues = (uint16_t)nb_queues; data->nb_tx_queues = (uint16_t)nb_queues; data->dev_link = pmd_link; data->mac_addrs = &(*internals)->eth_addr; - (*eth_dev)->data = data; (*eth_dev)->dev_ops = &ops; return 0; @@ -802,8 +793,6 @@ error: } free((*internals)->if_name); rte_free(*internals); -error_early: - rte_free(data); return -1; } @@ -985,7 +974,6 @@ rte_pmd_af_packet_remove(struct rte_vdev_device *dev) free(internals->if_name); rte_free(eth_dev->data->dev_private); - rte_free(eth_dev->data); rte_eth_dev_release_port(eth_dev); diff --git a/drivers/net/cxgbe/cxgbe_main.c b/drivers/net/cxgbe/cxgbe_main.c index c786a1a363..74bccd514b 100644 --- a/drivers/net/cxgbe/cxgbe_main.c +++ b/drivers/net/cxgbe/cxgbe_main.c @@ -29,7 +29,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/net/kni/rte_eth_kni.c b/drivers/net/kni/rte_eth_kni.c index c10e970c21..b7897b6563 100644 --- a/drivers/net/kni/rte_eth_kni.c +++ b/drivers/net/kni/rte_eth_kni.c @@ -336,25 +336,17 @@ eth_kni_create(struct rte_vdev_device *vdev, struct pmd_internals *internals; struct rte_eth_dev_data *data; struct rte_eth_dev *eth_dev; - const char *name; RTE_LOG(INFO, PMD, "Creating kni ethdev on numa socket %u\n", numa_node); - name = rte_vdev_device_name(vdev); - data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node); - if (data == NULL) - return NULL; - /* reserve an ethdev entry */ eth_dev = rte_eth_vdev_allocate(vdev, sizeof(*internals)); - if (eth_dev == NULL) { - rte_free(data); + if (!eth_dev) return NULL; - } internals = eth_dev->data->dev_private; - rte_memcpy(data, eth_dev->data, sizeof(*data)); + data = eth_dev->data; data->nb_rx_queues = 1; data->nb_tx_queues = 1; data->dev_link = pmd_link; @@ -362,7 +354,6 @@ eth_kni_create(struct rte_vdev_device *vdev, eth_random_addr(internals->eth_addr.addr_bytes); - eth_dev->data = data; eth_dev->dev_ops = ð_kni_ops; internals->no_request_thread = args->no_request_thread; @@ -458,7 +449,6 @@ eth_kni_remove(struct rte_vdev_device *vdev) rte_kni_release(internals->kni); rte_free(internals); - rte_free(eth_dev->data); rte_eth_dev_release_port(eth_dev); diff --git a/drivers/net/null/rte_eth_null.c b/drivers/net/null/rte_eth_null.c index 74dde9521b..7d89a32597 100644 --- a/drivers/net/null/rte_eth_null.c +++ b/drivers/net/null/rte_eth_null.c @@ -495,7 +495,7 @@ eth_dev_null_create(struct rte_vdev_device *dev, { const unsigned nb_rx_queues = 1; const unsigned nb_tx_queues = 1; - struct rte_eth_dev_data *data = NULL; + struct rte_eth_dev_data *data; struct pmd_internals *internals = NULL; struct rte_eth_dev *eth_dev = NULL; @@ -512,19 +512,10 @@ eth_dev_null_create(struct rte_vdev_device *dev, RTE_LOG(INFO, PMD, "Creating null ethdev on numa socket %u\n", dev->device.numa_node); - /* now do all data allocation - for eth_dev structure, dummy pci driver - * and internal (private) data - */ - data = rte_zmalloc_socket(rte_vdev_device_name(dev), sizeof(*data), 0, - dev->device.numa_node); - if (!data) - return -ENOMEM; - eth_dev = rte_eth_vdev_allocate(dev, sizeof(*internals)); - if (!eth_dev) { - rte_free(data); + if (!eth_dev) return -ENOMEM; - } + /* now put it all together * - store queue data in internals, * - store numa_node info in ethdev data @@ -545,13 +536,12 @@ eth_dev_null_create(struct rte_vdev_device *dev, rte_memcpy(internals->rss_key, default_rss_key, 40); - rte_memcpy(data, eth_dev->data, sizeof(*data)); + data = eth_dev->data; data->nb_rx_queues = (uint16_t)nb_rx_queues; data->nb_tx_queues = (uint16_t)nb_tx_queues; data->dev_link = pmd_link; data->mac_addrs = &internals->eth_addr; - eth_dev->data = data; eth_dev->dev_ops = &ops; /* finally assign rx and tx ops */ @@ -669,7 +659,6 @@ rte_pmd_null_remove(struct rte_vdev_device *dev) return -1; rte_free(eth_dev->data->dev_private); - rte_free(eth_dev->data); rte_eth_dev_release_port(eth_dev); diff --git a/drivers/net/octeontx/octeontx_ethdev.c b/drivers/net/octeontx/octeontx_ethdev.c index 6d67d257c0..ee06cd3554 100644 --- a/drivers/net/octeontx/octeontx_ethdev.c +++ b/drivers/net/octeontx/octeontx_ethdev.c @@ -1068,7 +1068,7 @@ octeontx_create(struct rte_vdev_device *dev, int port, uint8_t evdev, char octtx_name[OCTEONTX_MAX_NAME_LEN]; struct octeontx_nic *nic = NULL; struct rte_eth_dev *eth_dev = NULL; - struct rte_eth_dev_data *data = NULL; + struct rte_eth_dev_data *data; const char *name = rte_vdev_device_name(dev); PMD_INIT_FUNC_TRACE(); @@ -1084,13 +1084,6 @@ octeontx_create(struct rte_vdev_device *dev, int port, uint8_t evdev, return 0; } - data = rte_zmalloc_socket(octtx_name, sizeof(*data), 0, socket_id); - if (data == NULL) { - octeontx_log_err("failed to allocate devdata"); - res = -ENOMEM; - goto err; - } - nic = rte_zmalloc_socket(octtx_name, sizeof(*nic), 0, socket_id); if (nic == NULL) { octeontx_log_err("failed to allocate nic structure"); @@ -1126,11 +1119,9 @@ octeontx_create(struct rte_vdev_device *dev, int port, uint8_t evdev, eth_dev->data->kdrv = RTE_KDRV_NONE; eth_dev->data->numa_node = dev->device.numa_node; - rte_memcpy(data, (eth_dev)->data, sizeof(*data)); + data = eth_dev->data; data->dev_private = nic; - data->port_id = eth_dev->data->port_id; - snprintf(data->name, sizeof(data->name), "%s", eth_dev->data->name); nic->ev_queues = 1; nic->ev_ports = 1; @@ -1149,7 +1140,6 @@ octeontx_create(struct rte_vdev_device *dev, int port, uint8_t evdev, goto err; } - eth_dev->data = data; eth_dev->dev_ops = &octeontx_dev_ops; /* Finally save ethdev pointer to the NIC structure */ @@ -1217,7 +1207,6 @@ octeontx_remove(struct rte_vdev_device *dev) rte_free(eth_dev->data->mac_addrs); rte_free(eth_dev->data->dev_private); - rte_free(eth_dev->data); rte_eth_dev_release_port(eth_dev); rte_event_dev_close(nic->evdev); } diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c index c1571e1fe9..8740d527f0 100644 --- a/drivers/net/pcap/rte_eth_pcap.c +++ b/drivers/net/pcap/rte_eth_pcap.c @@ -773,27 +773,16 @@ pmd_init_internals(struct rte_vdev_device *vdev, struct pmd_internals **internals, struct rte_eth_dev **eth_dev) { - struct rte_eth_dev_data *data = NULL; + struct rte_eth_dev_data *data; unsigned int numa_node = vdev->device.numa_node; - const char *name; - name = rte_vdev_device_name(vdev); RTE_LOG(INFO, PMD, "Creating pcap-backed ethdev on numa socket %d\n", numa_node); - /* now do all data allocation - for eth_dev structure - * and internal (private) data - */ - data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node); - if (data == NULL) - return -1; - /* reserve an ethdev entry */ *eth_dev = rte_eth_vdev_allocate(vdev, sizeof(**internals)); - if (*eth_dev == NULL) { - rte_free(data); + if (!(*eth_dev)) return -1; - } /* now put it all together * - store queue data in internals, @@ -802,7 +791,7 @@ pmd_init_internals(struct rte_vdev_device *vdev, * - and point eth_dev structure to new eth_dev_data structure */ *internals = (*eth_dev)->data->dev_private; - rte_memcpy(data, (*eth_dev)->data, sizeof(*data)); + data = (*eth_dev)->data; data->nb_rx_queues = (uint16_t)nb_rx_queues; data->nb_tx_queues = (uint16_t)nb_tx_queues; data->dev_link = pmd_link; @@ -812,7 +801,6 @@ pmd_init_internals(struct rte_vdev_device *vdev, * NOTE: we'll replace the data element, of originally allocated * eth_dev so the rings are local per-process */ - (*eth_dev)->data = data; (*eth_dev)->dev_ops = &ops; return 0; @@ -1020,7 +1008,6 @@ pmd_pcap_remove(struct rte_vdev_device *dev) return -1; rte_free(eth_dev->data->dev_private); - rte_free(eth_dev->data); rte_eth_dev_release_port(eth_dev); diff --git a/drivers/net/ring/rte_eth_ring.c b/drivers/net/ring/rte_eth_ring.c index df13c44be4..e53823adb3 100644 --- a/drivers/net/ring/rte_eth_ring.c +++ b/drivers/net/ring/rte_eth_ring.c @@ -259,15 +259,6 @@ do_eth_dev_ring_create(const char *name, RTE_LOG(INFO, PMD, "Creating rings-backed ethdev on numa socket %u\n", numa_node); - /* now do all data allocation - for eth_dev structure, dummy pci driver - * and internal (private) data - */ - data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node); - if (data == NULL) { - rte_errno = ENOMEM; - goto error; - } - rx_queues_local = rte_zmalloc_socket(name, sizeof(void *) * nb_rx_queues, 0, numa_node); if (rx_queues_local == NULL) { @@ -301,10 +292,8 @@ do_eth_dev_ring_create(const char *name, * - point eth_dev_data to internals * - and point eth_dev structure to new eth_dev_data structure */ - /* NOTE: we'll replace the data element, of originally allocated eth_dev - * so the rings are local per-process */ - rte_memcpy(data, eth_dev->data, sizeof(*data)); + data = eth_dev->data; data->rx_queues = rx_queues_local; data->tx_queues = tx_queues_local; @@ -326,7 +315,6 @@ do_eth_dev_ring_create(const char *name, data->dev_link = pmd_link; data->mac_addrs = &internals->address; - eth_dev->data = data; eth_dev->dev_ops = &ops; data->kdrv = RTE_KDRV_NONE; data->numa_node = numa_node; @@ -342,7 +330,6 @@ do_eth_dev_ring_create(const char *name, error: rte_free(rx_queues_local); rte_free(tx_queues_local); - rte_free(data); rte_free(internals); return -1; @@ -675,8 +662,6 @@ rte_pmd_ring_remove(struct rte_vdev_device *dev) rte_free(eth_dev->data->tx_queues); rte_free(eth_dev->data->dev_private); - rte_free(eth_dev->data); - rte_eth_dev_release_port(eth_dev); return 0; } diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c index 915d9373f8..b18efd8b70 100644 --- a/drivers/net/tap/rte_eth_tap.c +++ b/drivers/net/tap/rte_eth_tap.c @@ -1386,12 +1386,6 @@ eth_dev_tap_create(struct rte_vdev_device *vdev, char *tap_name, RTE_LOG(DEBUG, PMD, "%s device on numa %u\n", tuntap_name, rte_socket_id()); - data = rte_zmalloc_socket(tap_name, sizeof(*data), 0, numa_node); - if (!data) { - RTE_LOG(ERR, PMD, "%s Failed to allocate data\n", tuntap_name); - goto error_exit_nodev; - } - dev = rte_eth_vdev_allocate(vdev, sizeof(*pmd)); if (!dev) { RTE_LOG(ERR, PMD, "%s Unable to allocate device struct\n", @@ -1412,7 +1406,7 @@ eth_dev_tap_create(struct rte_vdev_device *vdev, char *tap_name, } /* Setup some default values */ - rte_memcpy(data, dev->data, sizeof(*data)); + data = dev->data; data->dev_private = pmd; data->dev_flags = RTE_ETH_DEV_INTR_LSC; data->numa_node = numa_node; @@ -1423,7 +1417,6 @@ eth_dev_tap_create(struct rte_vdev_device *vdev, char *tap_name, data->nb_rx_queues = 0; data->nb_tx_queues = 0; - dev->data = data; dev->dev_ops = &ops; dev->rx_pkt_burst = pmd_rx_burst; dev->tx_pkt_burst = pmd_tx_burst; @@ -1574,7 +1567,6 @@ error_exit_nodev: RTE_LOG(ERR, PMD, "%s Unable to initialize %s\n", tuntap_name, rte_vdev_device_name(vdev)); - rte_free(data); return -EINVAL; } @@ -1828,7 +1820,6 @@ rte_pmd_tap_remove(struct rte_vdev_device *dev) close(internals->ioctl_sock); rte_free(eth_dev->data->dev_private); - rte_free(eth_dev->data); rte_eth_dev_release_port(eth_dev); diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c index d7d44a0eb3..fea13eb554 100644 --- a/drivers/net/vhost/rte_eth_vhost.c +++ b/drivers/net/vhost/rte_eth_vhost.c @@ -1227,7 +1227,7 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name, int16_t queues, const unsigned int numa_node, uint64_t flags) { const char *name = rte_vdev_device_name(dev); - struct rte_eth_dev_data *data = NULL; + struct rte_eth_dev_data *data; struct pmd_internal *internal = NULL; struct rte_eth_dev *eth_dev = NULL; struct ether_addr *eth_addr = NULL; @@ -1237,13 +1237,6 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name, RTE_LOG(INFO, PMD, "Creating VHOST-USER backend on numa socket %u\n", numa_node); - /* now do all data allocation - for eth_dev structure and internal - * (private) data - */ - data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node); - if (data == NULL) - goto error; - list = rte_zmalloc_socket(name, sizeof(*list), 0, numa_node); if (list == NULL) goto error; @@ -1285,12 +1278,7 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name, rte_spinlock_init(&vring_state->lock); vring_states[eth_dev->data->port_id] = vring_state; - /* We'll replace the 'data' originally allocated by eth_dev. So the - * vhost PMD resources won't be shared between multi processes. - */ - rte_memcpy(data, eth_dev->data, sizeof(*data)); - eth_dev->data = data; - + data = eth_dev->data; data->nb_rx_queues = queues; data->nb_tx_queues = queues; internal->max_queues = queues; @@ -1331,7 +1319,6 @@ error: rte_eth_dev_release_port(eth_dev); rte_free(internal); rte_free(list); - rte_free(data); return -1; } @@ -1462,8 +1449,6 @@ rte_pmd_vhost_remove(struct rte_vdev_device *dev) rte_free(vring_states[eth_dev->data->port_id]); vring_states[eth_dev->data->port_id] = NULL; - rte_free(eth_dev->data); - rte_eth_dev_release_port(eth_dev); return 0;