#include <rte_byteorder.h>
#include <rte_common.h>
#include <rte_mbuf.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
#include <rte_ethdev_vdev.h>
#include <rte_malloc.h>
#include <rte_bus_vdev.h>
#include <rte_net.h>
#include <rte_debug.h>
#include <rte_ip.h>
+#include <rte_string_fns.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <errno.h>
#include <signal.h>
+#include <stdbool.h>
#include <stdint.h>
#include <sys/uio.h>
#include <unistd.h>
#include <net/if.h>
#include <linux/if_tun.h>
#include <linux/if_ether.h>
-#include <linux/version.h>
#include <fcntl.h>
+#include <tap_rss.h>
#include <rte_eth_tap.h>
#include <tap_flow.h>
#include <tap_netlink.h>
/* Linux based path to the TUN device */
#define TUN_TAP_DEV_PATH "/dev/net/tun"
#define DEFAULT_TAP_NAME "dtap"
+#define DEFAULT_TUN_NAME "dtun"
#define ETH_TAP_IFACE_ARG "iface"
-#define ETH_TAP_SPEED_ARG "speed"
#define ETH_TAP_REMOTE_ARG "remote"
#define ETH_TAP_MAC_ARG "mac"
#define ETH_TAP_MAC_FIXED "fixed"
-#define FLOWER_KERNEL_VERSION KERNEL_VERSION(4, 2, 0)
-#define FLOWER_VLAN_KERNEL_VERSION KERNEL_VERSION(4, 9, 0)
+#define ETH_TAP_USR_MAC_FMT "xx:xx:xx:xx:xx:xx"
+#define ETH_TAP_CMP_MAC_FMT "0123456789ABCDEFabcdef"
+#define ETH_TAP_MAC_ARG_FMT ETH_TAP_MAC_FIXED "|" ETH_TAP_USR_MAC_FMT
static struct rte_vdev_driver pmd_tap_drv;
+static struct rte_vdev_driver pmd_tun_drv;
static const char *valid_arguments[] = {
ETH_TAP_IFACE_ARG,
- ETH_TAP_SPEED_ARG,
ETH_TAP_REMOTE_ARG,
ETH_TAP_MAC_ARG,
NULL
};
static int tap_unit;
+static unsigned int tun_unit;
+
+static int tap_type;
+static char tuntap_name[8];
static volatile uint32_t tap_trigger; /* Rx trigger */
.link_speed = ETH_SPEED_NUM_10G,
.link_duplex = ETH_LINK_FULL_DUPLEX,
.link_status = ETH_LINK_DOWN,
- .link_autoneg = ETH_LINK_SPEED_AUTONEG
+ .link_autoneg = ETH_LINK_FIXED,
};
static void
* Do not set IFF_NO_PI as packet information header will be needed
* to check if a received packet has been truncated.
*/
- ifr.ifr_flags = IFF_TAP;
+ ifr.ifr_flags = (tap_type) ? IFF_TAP : IFF_TUN | IFF_POINTOPOINT;
snprintf(ifr.ifr_name, IFNAMSIZ, "%s", pmd->name);
- RTE_LOG(DEBUG, PMD, "ifr_name '%s'\n", ifr.ifr_name);
+ TAP_LOG(DEBUG, "ifr_name '%s'", ifr.ifr_name);
fd = open(TUN_TAP_DEV_PATH, O_RDWR);
if (fd < 0) {
- RTE_LOG(ERR, PMD, "Unable to create TAP interface\n");
+ TAP_LOG(ERR, "Unable to create %s interface", tuntap_name);
goto error;
}
#ifdef IFF_MULTI_QUEUE
/* Grab the TUN features to verify we can work multi-queue */
if (ioctl(fd, TUNGETFEATURES, &features) < 0) {
- RTE_LOG(ERR, PMD, "TAP unable to get TUN/TAP features\n");
+ TAP_LOG(ERR, "%s unable to get TUN/TAP features",
+ tuntap_name);
goto error;
}
- RTE_LOG(DEBUG, PMD, " TAP Features %08x\n", features);
+ TAP_LOG(DEBUG, "%s Features %08x", tuntap_name, features);
if (features & IFF_MULTI_QUEUE) {
- RTE_LOG(DEBUG, PMD, " Multi-queue support for %d queues\n",
+ TAP_LOG(DEBUG, " Multi-queue support for %d queues",
RTE_PMD_TAP_MAX_QUEUES);
ifr.ifr_flags |= IFF_MULTI_QUEUE;
} else
#endif
{
ifr.ifr_flags |= IFF_ONE_QUEUE;
- RTE_LOG(DEBUG, PMD, " Single queue only support\n");
+ TAP_LOG(DEBUG, " Single queue only support");
}
/* Set the TUN/TAP configuration and set the name if needed */
if (ioctl(fd, TUNSETIFF, (void *)&ifr) < 0) {
- RTE_LOG(WARNING, PMD,
- "Unable to set TUNSETIFF for %s\n",
- ifr.ifr_name);
- perror("TUNSETIFF");
+ TAP_LOG(WARNING, "Unable to set TUNSETIFF for %s: %s",
+ ifr.ifr_name, strerror(errno));
goto error;
}
/* Always set the file descriptor to non-blocking */
if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0) {
- RTE_LOG(WARNING, PMD,
- "Unable to set %s to nonblocking\n",
- ifr.ifr_name);
- perror("F_SETFL, NONBLOCK");
+ TAP_LOG(WARNING,
+ "Unable to set %s to nonblocking: %s",
+ ifr.ifr_name, strerror(errno));
goto error;
}
fcntl(fd, F_SETFL, flags | O_ASYNC);
fcntl(fd, F_SETOWN, getpid());
} while (0);
+
if (errno) {
/* Disable trigger globally in case of error */
tap_trigger = 0;
- RTE_LOG(WARNING, PMD, "Rx trigger disabled: %s\n",
+ TAP_LOG(WARNING, "Rx trigger disabled: %s",
strerror(errno));
}
}
}
+static uint64_t
+tap_rx_offload_get_port_capa(void)
+{
+ /*
+ * No specific port Rx offload capabilities.
+ */
+ return 0;
+}
+
+static uint64_t
+tap_rx_offload_get_queue_capa(void)
+{
+ return DEV_RX_OFFLOAD_SCATTER |
+ DEV_RX_OFFLOAD_IPV4_CKSUM |
+ DEV_RX_OFFLOAD_UDP_CKSUM |
+ DEV_RX_OFFLOAD_TCP_CKSUM |
+ DEV_RX_OFFLOAD_CRC_STRIP;
+}
+
/* Callback to handle the rx burst of packets to the correct interface and
* file descriptor(s) in a multi-queue setup.
*/
int len;
len = readv(rxq->fd, *rxq->iovecs,
- 1 + (rxq->rxmode->enable_scatter ?
- rxq->nb_rx_desc : 1));
+ 1 +
+ (rxq->rxmode->offloads & DEV_RX_OFFLOAD_SCATTER ?
+ rxq->nb_rx_desc : 1));
if (len < (int)sizeof(struct tun_pi))
break;
seg->next = NULL;
mbuf->packet_type = rte_net_get_ptype(mbuf, NULL,
RTE_PTYPE_ALL_MASK);
- if (rxq->rxmode->hw_ip_checksum)
+ if (rxq->rxmode->offloads & DEV_RX_OFFLOAD_CHECKSUM)
tap_verify_csum(mbuf);
/* account for the receive frame */
return num_rx;
}
+static uint64_t
+tap_tx_offload_get_port_capa(void)
+{
+ /*
+ * No specific port Tx offload capabilities.
+ */
+ return 0;
+}
+
+static uint64_t
+tap_tx_offload_get_queue_capa(void)
+{
+ return DEV_TX_OFFLOAD_MULTI_SEGS |
+ DEV_TX_OFFLOAD_IPV4_CKSUM |
+ DEV_TX_OFFLOAD_UDP_CKSUM |
+ DEV_TX_OFFLOAD_TCP_CKSUM;
+}
+
static void
tap_tx_offload(char *packet, uint64_t ol_flags, unsigned int l2_len,
unsigned int l3_len)
for (i = 0; i < nb_pkts; i++) {
struct rte_mbuf *mbuf = bufs[num_tx];
struct iovec iovecs[mbuf->nb_segs + 1];
- struct tun_pi pi = { .flags = 0 };
+ struct tun_pi pi = { .flags = 0, .proto = 0x00 };
struct rte_mbuf *seg = mbuf;
char m_copy[mbuf->data_len];
int n;
if (rte_pktmbuf_pkt_len(mbuf) > max_size)
break;
+ /*
+ * TUN and TAP are created with IFF_NO_PI disabled.
+ * For TUN PMD this mandatory as fields are used by
+ * Kernel tun.c to determine whether its IP or non IP
+ * packets.
+ *
+ * The logic fetches the first byte of data from mbuf.
+ * compares whether its v4 or v6. If none matches default
+ * value 0x00 is taken for protocol field.
+ */
+ char *buff_data = rte_pktmbuf_mtod(seg, void *);
+ j = (*buff_data & 0xf0);
+ pi.proto = (j == 0x40) ? 0x0008 :
+ (j == 0x60) ? 0xdd86 : 0x00;
+
iovecs[0].iov_base = π
iovecs[0].iov_len = sizeof(pi);
for (j = 1; j <= mbuf->nb_segs; j++) {
rte_pktmbuf_mtod(seg, void *);
seg = seg->next;
}
- if (mbuf->ol_flags & (PKT_TX_IP_CKSUM | PKT_TX_IPV4) ||
- (mbuf->ol_flags & PKT_TX_L4_MASK) == PKT_TX_UDP_CKSUM ||
- (mbuf->ol_flags & PKT_TX_L4_MASK) == PKT_TX_TCP_CKSUM) {
+ if (txq->csum &&
+ ((mbuf->ol_flags & (PKT_TX_IP_CKSUM | PKT_TX_IPV4) ||
+ (mbuf->ol_flags & PKT_TX_L4_MASK) == PKT_TX_UDP_CKSUM ||
+ (mbuf->ol_flags & PKT_TX_L4_MASK) == PKT_TX_TCP_CKSUM))) {
/* Support only packets with all data in the same seg */
if (mbuf->nb_segs > 1)
break;
case SIOCSIFMTU:
break;
default:
- RTE_ASSERT(!"unsupported request type: must not happen");
+ RTE_LOG(WARNING, PMD, "%s: ioctl() called with wrong arg\n",
+ pmd->name);
+ return -EINVAL;
}
if (ioctl(pmd->ioctl_sock, request, ifr) < 0)
goto error;
return 0;
error:
- RTE_LOG(DEBUG, PMD, "%s: %s(%s) failed: %s(%d)\n", ifr->ifr_name,
- __func__, tap_ioctl_req2str(request), strerror(errno), errno);
+ TAP_LOG(DEBUG, "%s(%s) failed: %s(%d)", ifr->ifr_name,
+ tap_ioctl_req2str(request), strerror(errno), errno);
return -errno;
}
tap_dev_configure(struct rte_eth_dev *dev)
{
if (dev->data->nb_rx_queues > RTE_PMD_TAP_MAX_QUEUES) {
- RTE_LOG(ERR, PMD,
- "%s: number of rx queues %d exceeds max num of queues %d\n",
+ TAP_LOG(ERR,
+ "%s: number of rx queues %d exceeds max num of queues %d",
dev->device->name,
dev->data->nb_rx_queues,
RTE_PMD_TAP_MAX_QUEUES);
return -1;
}
if (dev->data->nb_tx_queues > RTE_PMD_TAP_MAX_QUEUES) {
- RTE_LOG(ERR, PMD,
- "%s: number of tx queues %d exceeds max num of queues %d\n",
+ TAP_LOG(ERR,
+ "%s: number of tx queues %d exceeds max num of queues %d",
dev->device->name,
dev->data->nb_tx_queues,
RTE_PMD_TAP_MAX_QUEUES);
return -1;
}
- RTE_LOG(INFO, PMD, "%s: %p: TX configured queues number: %u\n",
- dev->device->name, (void *)dev, dev->data->nb_tx_queues);
+ TAP_LOG(INFO, "%s: %p: TX configured queues number: %u",
+ dev->device->name, (void *)dev, dev->data->nb_tx_queues);
- RTE_LOG(INFO, PMD, "%s: %p: RX configured queues number: %u\n",
- dev->device->name, (void *)dev, dev->data->nb_rx_queues);
+ TAP_LOG(INFO, "%s: %p: RX configured queues number: %u",
+ dev->device->name, (void *)dev, dev->data->nb_rx_queues);
return 0;
}
dev_info->max_rx_queues = RTE_PMD_TAP_MAX_QUEUES;
dev_info->max_tx_queues = RTE_PMD_TAP_MAX_QUEUES;
dev_info->min_rx_bufsize = 0;
- dev_info->pci_dev = NULL;
dev_info->speed_capa = tap_dev_speed_capa();
- dev_info->rx_offload_capa = (DEV_RX_OFFLOAD_IPV4_CKSUM |
- DEV_RX_OFFLOAD_UDP_CKSUM |
- DEV_RX_OFFLOAD_TCP_CKSUM);
- dev_info->tx_offload_capa =
- (DEV_TX_OFFLOAD_IPV4_CKSUM |
- DEV_TX_OFFLOAD_UDP_CKSUM |
- DEV_TX_OFFLOAD_TCP_CKSUM);
+ dev_info->rx_queue_offload_capa = tap_rx_offload_get_queue_capa();
+ dev_info->rx_offload_capa = tap_rx_offload_get_port_capa() |
+ dev_info->rx_queue_offload_capa;
+ dev_info->tx_queue_offload_capa = tap_tx_offload_get_queue_capa();
+ dev_info->tx_offload_capa = tap_tx_offload_get_port_capa() |
+ dev_info->tx_queue_offload_capa;
+ dev_info->hash_key_size = TAP_RSS_HASH_KEY_SIZE;
+ /*
+ * limitation: TAP supports all of IP, UDP and TCP hash
+ * functions together and not in partial combinations
+ */
+ dev_info->flow_type_rss_offloads = ~TAP_RSS_HF_MASK;
}
static int
ioctl(internals->ioctl_sock, SIOCSIFFLAGS,
&internals->remote_initial_flags);
}
+
+ if (internals->ka_fd != -1) {
+ close(internals->ka_fd);
+ internals->ka_fd = -1;
+ }
+ /*
+ * Since TUN device has no more opened file descriptors
+ * it will be removed from kernel
+ */
}
static void
tap_flow_implicit_destroy(pmd, TAP_REMOTE_ALLMULTI);
}
-static void
+static int
tap_mac_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
{
struct pmd_internals *pmd = dev->data->dev_private;
enum ioctl_mode mode = LOCAL_ONLY;
struct ifreq ifr;
+ int ret;
if (is_zero_ether_addr(mac_addr)) {
- RTE_LOG(ERR, PMD, "%s: can't set an empty MAC address\n",
+ TAP_LOG(ERR, "%s: can't set an empty MAC address",
dev->device->name);
- return;
+ return -EINVAL;
}
/* Check the actual current MAC address on the tap netdevice */
- if (tap_ioctl(pmd, SIOCGIFHWADDR, &ifr, 0, LOCAL_ONLY) < 0)
- return;
+ ret = tap_ioctl(pmd, SIOCGIFHWADDR, &ifr, 0, LOCAL_ONLY);
+ if (ret < 0)
+ return ret;
if (is_same_ether_addr((struct ether_addr *)&ifr.ifr_hwaddr.sa_data,
mac_addr))
- return;
+ return 0;
/* Check the current MAC address on the remote */
- if (tap_ioctl(pmd, SIOCGIFHWADDR, &ifr, 0, REMOTE_ONLY) < 0)
- return;
+ ret = tap_ioctl(pmd, SIOCGIFHWADDR, &ifr, 0, REMOTE_ONLY);
+ if (ret < 0)
+ return ret;
if (!is_same_ether_addr((struct ether_addr *)&ifr.ifr_hwaddr.sa_data,
mac_addr))
mode = LOCAL_AND_REMOTE;
ifr.ifr_hwaddr.sa_family = AF_LOCAL;
rte_memcpy(ifr.ifr_hwaddr.sa_data, mac_addr, ETHER_ADDR_LEN);
- if (tap_ioctl(pmd, SIOCSIFHWADDR, &ifr, 1, mode) < 0)
- return;
+ ret = tap_ioctl(pmd, SIOCSIFHWADDR, &ifr, 1, mode);
+ if (ret < 0)
+ return ret;
rte_memcpy(&pmd->eth_addr, mac_addr, ETHER_ADDR_LEN);
if (pmd->remote_if_index && !pmd->flow_isolate) {
/* Replace MAC redirection rule after a MAC change */
- if (tap_flow_implicit_destroy(pmd, TAP_REMOTE_LOCAL_MAC) < 0) {
- RTE_LOG(ERR, PMD,
- "%s: Couldn't delete MAC redirection rule\n",
+ ret = tap_flow_implicit_destroy(pmd, TAP_REMOTE_LOCAL_MAC);
+ if (ret < 0) {
+ TAP_LOG(ERR,
+ "%s: Couldn't delete MAC redirection rule",
dev->device->name);
- return;
+ return ret;
}
- if (tap_flow_implicit_create(pmd, TAP_REMOTE_LOCAL_MAC) < 0)
- RTE_LOG(ERR, PMD,
- "%s: Couldn't add MAC redirection rule\n",
+ ret = tap_flow_implicit_create(pmd, TAP_REMOTE_LOCAL_MAC);
+ if (ret < 0) {
+ TAP_LOG(ERR,
+ "%s: Couldn't add MAC redirection rule",
dev->device->name);
+ return ret;
+ }
}
+
+ return 0;
}
static int
}
if (*fd != -1) {
/* fd for this queue already exists */
- RTE_LOG(DEBUG, PMD, "%s: fd %d for %s queue qid %d exists\n",
+ TAP_LOG(DEBUG, "%s: fd %d for %s queue qid %d exists",
pmd->name, *fd, dir, qid);
} else if (*other_fd != -1) {
/* Only other_fd exists. dup it */
*fd = dup(*other_fd);
if (*fd < 0) {
*fd = -1;
- RTE_LOG(ERR, PMD, "%s: dup() failed.\n",
- pmd->name);
+ TAP_LOG(ERR, "%s: dup() failed.", pmd->name);
return -1;
}
- RTE_LOG(DEBUG, PMD, "%s: dup fd %d for %s queue qid %d (%d)\n",
+ TAP_LOG(DEBUG, "%s: dup fd %d for %s queue qid %d (%d)",
pmd->name, *other_fd, dir, qid, *fd);
} else {
/* Both RX and TX fds do not exist (equal -1). Create fd */
*fd = tun_alloc(pmd);
if (*fd < 0) {
*fd = -1; /* restore original value */
- RTE_LOG(ERR, PMD, "%s: tun_alloc() failed.\n",
- pmd->name);
+ TAP_LOG(ERR, "%s: tun_alloc() failed.", pmd->name);
return -1;
}
- RTE_LOG(DEBUG, PMD, "%s: add %s queue for qid %d fd %d\n",
+ TAP_LOG(DEBUG, "%s: add %s queue for qid %d fd %d",
pmd->name, dir, qid, *fd);
}
int i;
if (rx_queue_id >= dev->data->nb_rx_queues || !mp) {
- RTE_LOG(WARNING, PMD,
- "nb_rx_queues %d too small or mempool NULL\n",
+ TAP_LOG(WARNING,
+ "nb_rx_queues %d too small or mempool NULL",
dev->data->nb_rx_queues);
return -1;
}
iovecs = rte_zmalloc_socket(dev->device->name, sizeof(*iovecs), 0,
socket_id);
if (!iovecs) {
- RTE_LOG(WARNING, PMD,
- "%s: Couldn't allocate %d RX descriptors\n",
+ TAP_LOG(WARNING,
+ "%s: Couldn't allocate %d RX descriptors",
dev->device->name, nb_desc);
return -ENOMEM;
}
for (i = 1; i <= nb_desc; i++) {
*tmp = rte_pktmbuf_alloc(rxq->mp);
if (!*tmp) {
- RTE_LOG(WARNING, PMD,
- "%s: couldn't allocate memory for queue %d\n",
+ TAP_LOG(WARNING,
+ "%s: couldn't allocate memory for queue %d",
dev->device->name, rx_queue_id);
ret = -ENOMEM;
goto error;
tmp = &(*tmp)->next;
}
- RTE_LOG(DEBUG, PMD, " RX TAP device name %s, qid %d on fd %d\n",
+ TAP_LOG(DEBUG, " RX TUNTAP device name %s, qid %d on fd %d",
internals->name, rx_queue_id, internals->rxq[rx_queue_id].fd);
return 0;
uint16_t tx_queue_id,
uint16_t nb_tx_desc __rte_unused,
unsigned int socket_id __rte_unused,
- const struct rte_eth_txconf *tx_conf __rte_unused)
+ const struct rte_eth_txconf *tx_conf)
{
struct pmd_internals *internals = dev->data->dev_private;
+ struct tx_queue *txq;
int ret;
+ uint64_t offloads;
if (tx_queue_id >= dev->data->nb_tx_queues)
return -1;
-
dev->data->tx_queues[tx_queue_id] = &internals->txq[tx_queue_id];
+ txq = dev->data->tx_queues[tx_queue_id];
+
+ offloads = tx_conf->offloads | dev->data->dev_conf.txmode.offloads;
+ txq->csum = !!(offloads &
+ (DEV_TX_OFFLOAD_IPV4_CKSUM |
+ DEV_TX_OFFLOAD_UDP_CKSUM |
+ DEV_TX_OFFLOAD_TCP_CKSUM));
+
ret = tap_setup_queue(dev, internals, tx_queue_id, 0);
if (ret == -1)
return -1;
-
- RTE_LOG(DEBUG, PMD, " TX TAP device name %s, qid %d on fd %d\n",
- internals->name, tx_queue_id, internals->txq[tx_queue_id].fd);
+ TAP_LOG(DEBUG,
+ " TX TUNTAP device name %s, qid %d on fd %d csum %s",
+ internals->name, tx_queue_id, internals->txq[tx_queue_id].fd,
+ txq->csum ? "on" : "off");
return 0;
}
struct rte_eth_dev *dev = cb_arg;
struct pmd_internals *pmd = dev->data->dev_private;
- nl_recv(pmd->intr_handle.fd, tap_nl_msg_handler, dev);
+ tap_nl_recv(pmd->intr_handle.fd, tap_nl_msg_handler, dev);
}
static int
-tap_intr_handle_set(struct rte_eth_dev *dev, int set)
+tap_lsc_intr_handle_set(struct rte_eth_dev *dev, int set)
{
struct pmd_internals *pmd = dev->data->dev_private;
/* In any case, disable interrupt if the conf is no longer there. */
if (!dev->data->dev_conf.intr_conf.lsc) {
if (pmd->intr_handle.fd != -1) {
- nl_final(pmd->intr_handle.fd);
+ tap_nl_final(pmd->intr_handle.fd);
rte_intr_callback_unregister(&pmd->intr_handle,
tap_dev_intr_handler, dev);
}
return 0;
}
if (set) {
- pmd->intr_handle.fd = nl_init(RTMGRP_LINK);
+ pmd->intr_handle.fd = tap_nl_init(RTMGRP_LINK);
if (unlikely(pmd->intr_handle.fd == -1))
return -EBADF;
return rte_intr_callback_register(
&pmd->intr_handle, tap_dev_intr_handler, dev);
}
- nl_final(pmd->intr_handle.fd);
+ tap_nl_final(pmd->intr_handle.fd);
return rte_intr_callback_unregister(&pmd->intr_handle,
tap_dev_intr_handler, dev);
}
+static int
+tap_intr_handle_set(struct rte_eth_dev *dev, int set)
+{
+ int err;
+
+ err = tap_lsc_intr_handle_set(dev, set);
+ if (err)
+ return err;
+ err = tap_rx_intr_vec_set(dev, set);
+ if (err && set)
+ tap_lsc_intr_handle_set(dev, 0);
+ return err;
+}
+
static const uint32_t*
tap_dev_supported_ptypes_get(struct rte_eth_dev *dev __rte_unused)
{
return 0;
}
+/**
+ * DPDK callback to update the RSS hash configuration.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param[in] rss_conf
+ * RSS configuration data.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+tap_rss_hash_update(struct rte_eth_dev *dev,
+ struct rte_eth_rss_conf *rss_conf)
+{
+ if (rss_conf->rss_hf & TAP_RSS_HF_MASK) {
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ if (rss_conf->rss_key && rss_conf->rss_key_len) {
+ /*
+ * Currently TAP RSS key is hard coded
+ * and cannot be updated
+ */
+ TAP_LOG(ERR,
+ "port %u RSS key cannot be updated",
+ dev->data->port_id);
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ return 0;
+}
+
static const struct eth_dev_ops ops = {
.dev_start = tap_dev_start,
.dev_stop = tap_dev_stop,
.stats_get = tap_stats_get,
.stats_reset = tap_stats_reset,
.dev_supported_ptypes_get = tap_dev_supported_ptypes_get,
+ .rss_hash_update = tap_rss_hash_update,
.filter_ctrl = tap_dev_filter_ctrl,
};
static int
eth_dev_tap_create(struct rte_vdev_device *vdev, char *tap_name,
- char *remote_iface, int fixed_mac_type)
+ char *remote_iface, struct ether_addr *mac_addr)
{
int numa_node = rte_socket_id();
struct rte_eth_dev *dev;
struct ifreq ifr;
int i;
- RTE_LOG(DEBUG, PMD, " TAP device on numa %u\n", rte_socket_id());
-
- data = rte_zmalloc_socket(tap_name, sizeof(*data), 0, numa_node);
- if (!data) {
- RTE_LOG(ERR, PMD, "TAP Failed to allocate data\n");
- goto error_exit;
- }
+ TAP_LOG(DEBUG, "%s device on numa %u",
+ tuntap_name, rte_socket_id());
dev = rte_eth_vdev_allocate(vdev, sizeof(*pmd));
if (!dev) {
- RTE_LOG(ERR, PMD, "TAP Unable to allocate device struct\n");
- goto error_exit;
+ TAP_LOG(ERR, "%s Unable to allocate device struct",
+ tuntap_name);
+ goto error_exit_nodev;
}
pmd = dev->data->dev_private;
pmd->ioctl_sock = socket(AF_INET, SOCK_DGRAM, 0);
if (pmd->ioctl_sock == -1) {
- RTE_LOG(ERR, PMD,
- "TAP Unable to get a socket for management: %s\n",
- strerror(errno));
+ TAP_LOG(ERR,
+ "%s Unable to get a socket for management: %s",
+ tuntap_name, strerror(errno));
goto error_exit;
}
/* 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;
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;
pmd->intr_handle.type = RTE_INTR_HANDLE_EXT;
pmd->intr_handle.fd = -1;
+ dev->intr_handle = &pmd->intr_handle;
/* Presetup the fds to -1 as being not valid */
+ pmd->ka_fd = -1;
for (i = 0; i < RTE_PMD_TAP_MAX_QUEUES; i++) {
pmd->rxq[i].fd = -1;
pmd->txq[i].fd = -1;
}
- if (fixed_mac_type) {
- /* fixed mac = 00:64:74:61:70:<iface_idx> */
- static int iface_idx;
- char mac[ETHER_ADDR_LEN] = "\0dtap";
-
- mac[ETHER_ADDR_LEN - 1] = iface_idx++;
- rte_memcpy(&pmd->eth_addr, mac, ETHER_ADDR_LEN);
- } else {
- eth_random_addr((uint8_t *)&pmd->eth_addr);
+ if (tap_type) {
+ if (is_zero_ether_addr(mac_addr))
+ eth_random_addr((uint8_t *)&pmd->eth_addr);
+ else
+ rte_memcpy(&pmd->eth_addr, mac_addr, sizeof(*mac_addr));
}
- /* Immediately create the netdevice (this will create the 1st queue). */
- /* rx queue */
- if (tap_setup_queue(dev, pmd, 0, 1) == -1)
- goto error_exit;
- /* tx queue */
- if (tap_setup_queue(dev, pmd, 0, 0) == -1)
+ /*
+ * Allocate a TUN device keep-alive file descriptor that will only be
+ * closed when the TUN device itself is closed or removed.
+ * This keep-alive file descriptor will guarantee that the TUN device
+ * exists even when all of its queues are closed
+ */
+ pmd->ka_fd = tun_alloc(pmd);
+ if (pmd->ka_fd == -1) {
+ TAP_LOG(ERR, "Unable to create %s interface", tuntap_name);
goto error_exit;
+ }
ifr.ifr_mtu = dev->data->mtu;
if (tap_ioctl(pmd, SIOCSIFMTU, &ifr, 1, LOCAL_AND_REMOTE) < 0)
goto error_exit;
- memset(&ifr, 0, sizeof(struct ifreq));
- ifr.ifr_hwaddr.sa_family = AF_LOCAL;
- rte_memcpy(ifr.ifr_hwaddr.sa_data, &pmd->eth_addr, ETHER_ADDR_LEN);
- if (tap_ioctl(pmd, SIOCSIFHWADDR, &ifr, 0, LOCAL_ONLY) < 0)
- goto error_exit;
+ if (tap_type) {
+ memset(&ifr, 0, sizeof(struct ifreq));
+ ifr.ifr_hwaddr.sa_family = AF_LOCAL;
+ rte_memcpy(ifr.ifr_hwaddr.sa_data, &pmd->eth_addr,
+ ETHER_ADDR_LEN);
+ if (tap_ioctl(pmd, SIOCSIFHWADDR, &ifr, 0, LOCAL_ONLY) < 0)
+ goto error_exit;
+ }
/*
* Set up everything related to rte_flow:
* - rte_flow actual/implicit lists
* - implicit rules
*/
- pmd->nlsk_fd = nl_init(0);
+ pmd->nlsk_fd = tap_nl_init(0);
if (pmd->nlsk_fd == -1) {
- RTE_LOG(WARNING, PMD, "%s: failed to create netlink socket.\n",
+ TAP_LOG(WARNING, "%s: failed to create netlink socket.",
pmd->name);
goto disable_rte_flow;
}
pmd->if_index = if_nametoindex(pmd->name);
if (!pmd->if_index) {
- RTE_LOG(ERR, PMD, "%s: failed to get if_index.\n", pmd->name);
+ TAP_LOG(ERR, "%s: failed to get if_index.", pmd->name);
goto disable_rte_flow;
}
if (qdisc_create_multiq(pmd->nlsk_fd, pmd->if_index) < 0) {
- RTE_LOG(ERR, PMD, "%s: failed to create multiq qdisc.\n",
+ TAP_LOG(ERR, "%s: failed to create multiq qdisc.",
pmd->name);
goto disable_rte_flow;
}
if (qdisc_create_ingress(pmd->nlsk_fd, pmd->if_index) < 0) {
- RTE_LOG(ERR, PMD, "%s: failed to create ingress qdisc.\n",
+ TAP_LOG(ERR, "%s: failed to create ingress qdisc.",
pmd->name);
goto disable_rte_flow;
}
if (strlen(remote_iface)) {
pmd->remote_if_index = if_nametoindex(remote_iface);
if (!pmd->remote_if_index) {
- RTE_LOG(ERR, PMD, "%s: failed to get %s if_index.\n",
+ TAP_LOG(ERR, "%s: failed to get %s if_index.",
pmd->name, remote_iface);
goto error_remote;
}
/* Replicate remote MAC address */
if (tap_ioctl(pmd, SIOCGIFHWADDR, &ifr, 0, REMOTE_ONLY) < 0) {
- RTE_LOG(ERR, PMD, "%s: failed to get %s MAC address.\n",
+ TAP_LOG(ERR, "%s: failed to get %s MAC address.",
pmd->name, pmd->remote_iface);
goto error_remote;
}
ETHER_ADDR_LEN);
/* The desired MAC is already in ifreq after SIOCGIFHWADDR. */
if (tap_ioctl(pmd, SIOCSIFHWADDR, &ifr, 0, LOCAL_ONLY) < 0) {
- RTE_LOG(ERR, PMD, "%s: failed to get %s MAC address.\n",
+ TAP_LOG(ERR, "%s: failed to get %s MAC address.",
pmd->name, remote_iface);
goto error_remote;
}
qdisc_flush(pmd->nlsk_fd, pmd->remote_if_index);
if (qdisc_create_ingress(pmd->nlsk_fd,
pmd->remote_if_index) < 0) {
- RTE_LOG(ERR, PMD, "%s: failed to create ingress qdisc.\n",
+ TAP_LOG(ERR, "%s: failed to create ingress qdisc.",
pmd->remote_iface);
goto error_remote;
}
tap_flow_implicit_create(pmd, TAP_REMOTE_LOCAL_MAC) < 0 ||
tap_flow_implicit_create(pmd, TAP_REMOTE_BROADCAST) < 0 ||
tap_flow_implicit_create(pmd, TAP_REMOTE_BROADCASTV6) < 0) {
- RTE_LOG(ERR, PMD,
- "%s: failed to create implicit rules.\n",
+ TAP_LOG(ERR,
+ "%s: failed to create implicit rules.",
pmd->name);
goto error_remote;
}
}
+ rte_eth_dev_probing_finish(dev);
return 0;
disable_rte_flow:
- RTE_LOG(ERR, PMD, " Disabling rte flow support: %s(%d)\n",
+ TAP_LOG(ERR, " Disabling rte flow support: %s(%d)",
strerror(errno), errno);
if (strlen(remote_iface)) {
- RTE_LOG(ERR, PMD, "Remote feature requires flow support.\n");
+ TAP_LOG(ERR, "Remote feature requires flow support.");
goto error_exit;
}
return 0;
error_remote:
- RTE_LOG(ERR, PMD, " Can't set up remote feature: %s(%d)\n",
+ TAP_LOG(ERR, " Can't set up remote feature: %s(%d)",
strerror(errno), errno);
tap_flow_implicit_flush(pmd, NULL);
error_exit:
- RTE_LOG(ERR, PMD, "TAP Unable to initialize %s\n",
- rte_vdev_device_name(vdev));
+ if (pmd->ioctl_sock > 0)
+ close(pmd->ioctl_sock);
+ rte_eth_dev_release_port(dev);
+
+error_exit_nodev:
+ TAP_LOG(ERR, "%s Unable to initialize %s",
+ tuntap_name, rte_vdev_device_name(vdev));
- rte_free(data);
return -EINVAL;
}
char *name = (char *)extra_args;
if (value)
- snprintf(name, RTE_ETH_NAME_MAX_LEN - 1, "%s", value);
+ strlcpy(name, value, RTE_ETH_NAME_MAX_LEN - 1);
else
snprintf(name, RTE_ETH_NAME_MAX_LEN - 1, "%s%d",
DEFAULT_TAP_NAME, (tap_unit - 1));
return 0;
}
-static int
-set_interface_speed(const char *key __rte_unused,
- const char *value,
- void *extra_args)
-{
- *(int *)extra_args = (value) ? atoi(value) : ETH_SPEED_NUM_10G;
-
- return 0;
-}
-
static int
set_remote_iface(const char *key __rte_unused,
const char *value,
char *name = (char *)extra_args;
if (value)
- snprintf(name, RTE_ETH_NAME_MAX_LEN, "%s", value);
+ strlcpy(name, value, RTE_ETH_NAME_MAX_LEN);
return 0;
}
+static int parse_user_mac(struct ether_addr *user_mac,
+ const char *value)
+{
+ unsigned int index = 0;
+ char mac_temp[strlen(ETH_TAP_USR_MAC_FMT) + 1], *mac_byte = NULL;
+
+ if (user_mac == NULL || value == NULL)
+ return 0;
+
+ strlcpy(mac_temp, value, sizeof(mac_temp));
+ mac_byte = strtok(mac_temp, ":");
+
+ while ((mac_byte != NULL) &&
+ (strlen(mac_byte) <= 2) &&
+ (strlen(mac_byte) == strspn(mac_byte,
+ ETH_TAP_CMP_MAC_FMT))) {
+ user_mac->addr_bytes[index++] = strtoul(mac_byte, NULL, 16);
+ mac_byte = strtok(NULL, ":");
+ }
+
+ return index;
+}
+
static int
set_mac_type(const char *key __rte_unused,
const char *value,
void *extra_args)
{
- if (value &&
- !strncasecmp(ETH_TAP_MAC_FIXED, value, strlen(ETH_TAP_MAC_FIXED)))
- *(int *)extra_args = 1;
+ struct ether_addr *user_mac = extra_args;
+
+ if (!value)
+ return 0;
+
+ if (!strncasecmp(ETH_TAP_MAC_FIXED, value, strlen(ETH_TAP_MAC_FIXED))) {
+ static int iface_idx;
+
+ /* fixed mac = 00:64:74:61:70:<iface_idx> */
+ memcpy((char *)user_mac->addr_bytes, "\0dtap", ETHER_ADDR_LEN);
+ user_mac->addr_bytes[ETHER_ADDR_LEN - 1] = iface_idx++ + '0';
+ goto success;
+ }
+
+ if (parse_user_mac(user_mac, value) != 6)
+ goto error;
+success:
+ TAP_LOG(DEBUG, "TAP user MAC param (%s)", value);
return 0;
+
+error:
+ TAP_LOG(ERR, "TAP user MAC (%s) is not in format (%s|%s)",
+ value, ETH_TAP_MAC_FIXED, ETH_TAP_USR_MAC_FMT);
+ return -1;
+}
+
+/*
+ * Open a TUN interface device. TUN PMD
+ * 1) sets tap_type as false
+ * 2) intakes iface as argument.
+ * 3) as interface is virtual set speed to 10G
+ */
+static int
+rte_pmd_tun_probe(struct rte_vdev_device *dev)
+{
+ const char *name, *params;
+ int ret;
+ struct rte_kvargs *kvlist = NULL;
+ char tun_name[RTE_ETH_NAME_MAX_LEN];
+ char remote_iface[RTE_ETH_NAME_MAX_LEN];
+
+ tap_type = 0;
+ strcpy(tuntap_name, "TUN");
+
+ name = rte_vdev_device_name(dev);
+ params = rte_vdev_device_args(dev);
+ memset(remote_iface, 0, RTE_ETH_NAME_MAX_LEN);
+
+ snprintf(tun_name, sizeof(tun_name), "%s%u",
+ DEFAULT_TUN_NAME, tun_unit++);
+
+ if (params && (params[0] != '\0')) {
+ TAP_LOG(DEBUG, "parameters (%s)", params);
+
+ kvlist = rte_kvargs_parse(params, valid_arguments);
+ if (kvlist) {
+ if (rte_kvargs_count(kvlist, ETH_TAP_IFACE_ARG) == 1) {
+ ret = rte_kvargs_process(kvlist,
+ ETH_TAP_IFACE_ARG,
+ &set_interface_name,
+ tun_name);
+
+ if (ret == -1)
+ goto leave;
+ }
+ }
+ }
+ pmd_link.link_speed = ETH_SPEED_NUM_10G;
+
+ TAP_LOG(NOTICE, "Initializing pmd_tun for %s as %s",
+ name, tun_name);
+
+ ret = eth_dev_tap_create(dev, tun_name, remote_iface, 0);
+
+leave:
+ if (ret == -1) {
+ TAP_LOG(ERR, "Failed to create pmd for %s as %s",
+ name, tun_name);
+ tun_unit--; /* Restore the unit number */
+ }
+ rte_kvargs_free(kvlist);
+
+ return ret;
}
/* Open a TAP interface device.
int speed;
char tap_name[RTE_ETH_NAME_MAX_LEN];
char remote_iface[RTE_ETH_NAME_MAX_LEN];
- int fixed_mac_type = 0;
+ struct ether_addr user_mac = { .addr_bytes = {0} };
+ struct rte_eth_dev *eth_dev;
+
+ tap_type = 1;
+ strcpy(tuntap_name, "TAP");
name = rte_vdev_device_name(dev);
params = rte_vdev_device_args(dev);
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY &&
+ strlen(params) == 0) {
+ eth_dev = rte_eth_dev_attach_secondary(name);
+ if (!eth_dev) {
+ TAP_LOG(ERR, "Failed to probe %s", name);
+ return -1;
+ }
+ /* TODO: request info from primary to set up Rx and Tx */
+ eth_dev->dev_ops = &ops;
+ rte_eth_dev_probing_finish(eth_dev);
+ return 0;
+ }
+
speed = ETH_SPEED_NUM_10G;
snprintf(tap_name, sizeof(tap_name), "%s%d",
DEFAULT_TAP_NAME, tap_unit++);
memset(remote_iface, 0, RTE_ETH_NAME_MAX_LEN);
if (params && (params[0] != '\0')) {
- RTE_LOG(DEBUG, PMD, "parameters (%s)\n", params);
+ TAP_LOG(DEBUG, "parameters (%s)", params);
kvlist = rte_kvargs_parse(params, valid_arguments);
if (kvlist) {
- if (rte_kvargs_count(kvlist, ETH_TAP_SPEED_ARG) == 1) {
- ret = rte_kvargs_process(kvlist,
- ETH_TAP_SPEED_ARG,
- &set_interface_speed,
- &speed);
- if (ret == -1)
- goto leave;
- }
-
if (rte_kvargs_count(kvlist, ETH_TAP_IFACE_ARG) == 1) {
ret = rte_kvargs_process(kvlist,
ETH_TAP_IFACE_ARG,
ret = rte_kvargs_process(kvlist,
ETH_TAP_MAC_ARG,
&set_mac_type,
- &fixed_mac_type);
+ &user_mac);
if (ret == -1)
goto leave;
}
}
pmd_link.link_speed = speed;
- RTE_LOG(NOTICE, PMD, "Initializing pmd_tap for %s as %s\n",
+ TAP_LOG(NOTICE, "Initializing pmd_tap for %s as %s",
name, tap_name);
- ret = eth_dev_tap_create(dev, tap_name, remote_iface, fixed_mac_type);
+ ret = eth_dev_tap_create(dev, tap_name, remote_iface, &user_mac);
leave:
if (ret == -1) {
- RTE_LOG(ERR, PMD, "Failed to create pmd for %s as %s\n",
+ TAP_LOG(ERR, "Failed to create pmd for %s as %s",
name, tap_name);
tap_unit--; /* Restore the unit number */
}
return ret;
}
-/* detach a TAP device.
+/* detach a TUNTAP device.
*/
static int
rte_pmd_tap_remove(struct rte_vdev_device *dev)
struct pmd_internals *internals;
int i;
- RTE_LOG(DEBUG, PMD, "Closing TUN/TAP Ethernet device on numa %u\n",
+ TAP_LOG(DEBUG, "Closing TUN/TAP Ethernet device on numa %u",
rte_socket_id());
/* find the ethdev entry */
if (internals->nlsk_fd) {
tap_flow_flush(eth_dev, NULL);
tap_flow_implicit_flush(internals, NULL);
- nl_final(internals->nlsk_fd);
+ tap_nl_final(internals->nlsk_fd);
}
for (i = 0; i < RTE_PMD_TAP_MAX_QUEUES; i++) {
if (internals->rxq[i].fd != -1) {
close(internals->ioctl_sock);
rte_free(eth_dev->data->dev_private);
- rte_free(eth_dev->data);
-
rte_eth_dev_release_port(eth_dev);
+ if (internals->ka_fd != -1) {
+ close(internals->ka_fd);
+ internals->ka_fd = -1;
+ }
return 0;
}
+static struct rte_vdev_driver pmd_tun_drv = {
+ .probe = rte_pmd_tun_probe,
+ .remove = rte_pmd_tap_remove,
+};
+
static struct rte_vdev_driver pmd_tap_drv = {
.probe = rte_pmd_tap_probe,
.remove = rte_pmd_tap_remove,
};
+
RTE_PMD_REGISTER_VDEV(net_tap, pmd_tap_drv);
+RTE_PMD_REGISTER_VDEV(net_tun, pmd_tun_drv);
RTE_PMD_REGISTER_ALIAS(net_tap, eth_tap);
+RTE_PMD_REGISTER_PARAM_STRING(net_tun,
+ ETH_TAP_IFACE_ARG "=<string> ");
RTE_PMD_REGISTER_PARAM_STRING(net_tap,
ETH_TAP_IFACE_ARG "=<string> "
- ETH_TAP_SPEED_ARG "=<int> "
- ETH_TAP_MAC_ARG "=" ETH_TAP_MAC_FIXED " "
+ ETH_TAP_MAC_ARG "=" ETH_TAP_MAC_ARG_FMT " "
ETH_TAP_REMOTE_ARG "=<string>");
+int tap_logtype;
+
+RTE_INIT(tap_init_log);
+static void
+tap_init_log(void)
+{
+ tap_logtype = rte_log_register("pmd.net.tap");
+ if (tap_logtype >= 0)
+ rte_log_set_level(tap_logtype, RTE_LOG_NOTICE);
+}
git.droids-corp.org / dpdk.git / blobdiff