/*-
* BSD LICENSE
*
- * Copyright(c) 2016 Intel Corporation. All rights reserved.
+ * Copyright(c) 2016-2017 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include <rte_common.h>
#include <rte_mbuf.h>
#include <rte_ethdev.h>
+#include <rte_ethdev_vdev.h>
#include <rte_malloc.h>
#include <rte_vdev.h>
#include <rte_kvargs.h>
#include <rte_net.h>
+#include <rte_debug.h>
#include <sys/types.h>
#include <sys/stat.h>
#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)
ETH_TAP_IFACE_ARG,
ETH_TAP_SPEED_ARG,
ETH_TAP_REMOTE_ARG,
+ ETH_TAP_MAC_ARG,
NULL
};
return num_tx;
}
+static const char *
+tap_ioctl_req2str(unsigned long request)
+{
+ switch (request) {
+ case SIOCSIFFLAGS:
+ return "SIOCSIFFLAGS";
+ case SIOCGIFFLAGS:
+ return "SIOCGIFFLAGS";
+ case SIOCGIFHWADDR:
+ return "SIOCGIFHWADDR";
+ case SIOCSIFHWADDR:
+ return "SIOCSIFHWADDR";
+ case SIOCSIFMTU:
+ return "SIOCSIFMTU";
+ }
+ return "UNKNOWN";
+}
+
static int
tap_ioctl(struct pmd_internals *pmd, unsigned long request,
struct ifreq *ifr, int set, enum ioctl_mode mode)
case SIOCSIFMTU:
break;
default:
- RTE_LOG(WARNING, PMD, "%s: ioctl() called with wrong arg\n",
- pmd->name);
- return -EINVAL;
+ RTE_ASSERT(!"unsupported request type: must not happen");
}
if (ioctl(pmd->ioctl_sock, request, ifr) < 0)
goto error;
return 0;
error:
- RTE_LOG(ERR, PMD, "%s: ioctl(%lu) failed with error: %s\n",
- ifr->ifr_name, request, strerror(errno));
+ RTE_LOG(DEBUG, PMD, "%s: %s(%s) failed: %s(%d)\n", ifr->ifr_name,
+ __func__, tap_ioctl_req2str(request), strerror(errno), errno);
return -errno;
}
return;
}
/* Check the actual current MAC address on the tap netdevice */
- if (tap_ioctl(pmd, SIOCGIFHWADDR, &ifr, 0, LOCAL_ONLY) != 0) {
- RTE_LOG(ERR, PMD,
- "%s: couldn't check current tap MAC address\n",
- dev->data->name);
+ if (tap_ioctl(pmd, SIOCGIFHWADDR, &ifr, 0, LOCAL_ONLY) != 0)
return;
- }
if (is_same_ether_addr((struct ether_addr *)&ifr.ifr_hwaddr.sa_data,
mac_addr))
return;
struct pmd_internals *internals = dev->data->dev_private;
struct rx_queue *rxq = &internals->rxq[rx_queue_id];
struct rte_mbuf **tmp = &rxq->pool;
- struct iovec (*iovecs)[nb_rx_desc + 1];
+ long iov_max = sysconf(_SC_IOV_MAX);
+ uint16_t nb_desc = RTE_MIN(nb_rx_desc, iov_max - 1);
+ struct iovec (*iovecs)[nb_desc + 1];
int data_off = RTE_PKTMBUF_HEADROOM;
int ret = 0;
int fd;
rxq->mp = mp;
rxq->trigger_seen = 1; /* force initial burst */
rxq->in_port = dev->data->port_id;
- rxq->nb_rx_desc = nb_rx_desc;
+ rxq->nb_rx_desc = nb_desc;
iovecs = rte_zmalloc_socket(dev->data->name, sizeof(*iovecs), 0,
socket_id);
if (!iovecs) {
RTE_LOG(WARNING, PMD,
"%s: Couldn't allocate %d RX descriptors\n",
- dev->data->name, nb_rx_desc);
+ dev->data->name, nb_desc);
return -ENOMEM;
}
rxq->iovecs = iovecs;
(*rxq->iovecs)[0].iov_len = sizeof(struct tun_pi);
(*rxq->iovecs)[0].iov_base = &rxq->pi;
- for (i = 1; i <= nb_rx_desc; i++) {
+ for (i = 1; i <= nb_desc; i++) {
*tmp = rte_pktmbuf_alloc(rxq->mp);
if (!*tmp) {
RTE_LOG(WARNING, PMD,
}
static int
-eth_dev_tap_create(const char *name, char *tap_name, char *remote_iface)
+eth_dev_tap_create(struct rte_vdev_device *vdev, char *tap_name,
+ char *remote_iface, int fixed_mac_type)
{
int numa_node = rte_socket_id();
- struct rte_eth_dev *dev = NULL;
- struct pmd_internals *pmd = NULL;
- struct rte_eth_dev_data *data = NULL;
+ struct rte_eth_dev *dev;
+ struct pmd_internals *pmd;
+ struct rte_eth_dev_data *data;
int i;
RTE_LOG(DEBUG, PMD, " TAP device on numa %u\n", rte_socket_id());
goto error_exit;
}
- pmd = rte_zmalloc_socket(tap_name, sizeof(*pmd), 0, numa_node);
- if (!pmd) {
- RTE_LOG(ERR, PMD, "TAP Unable to allocate internal struct\n");
- goto error_exit;
- }
-
- /* name in allocation and data->name must be consistent */
- snprintf(data->name, sizeof(data->name), "%s", name);
- dev = rte_eth_dev_allocate(name);
+ dev = rte_eth_vdev_allocate(vdev, sizeof(*pmd));
if (!dev) {
RTE_LOG(ERR, PMD, "TAP Unable to allocate device struct\n");
goto error_exit;
}
+ pmd = dev->data->dev_private;
snprintf(pmd->name, sizeof(pmd->name), "%s", tap_name);
-
pmd->nb_queues = RTE_PMD_TAP_MAX_QUEUES;
pmd->ioctl_sock = socket(AF_INET, SOCK_DGRAM, 0);
}
/* Setup some default values */
+ rte_memcpy(data, dev->data, sizeof(*data));
data->dev_private = pmd;
- data->port_id = dev->data->port_id;
- data->mtu = dev->data->mtu;
data->dev_flags = RTE_ETH_DEV_DETACHABLE | RTE_ETH_DEV_INTR_LSC;
- data->kdrv = RTE_KDRV_NONE;
- data->drv_name = pmd_tap_drv.driver.name;
data->numa_node = numa_node;
+ data->drv_name = pmd_tap_drv.driver.name;
data->dev_link = pmd_link;
data->mac_addrs = &pmd->eth_addr;
dev->data = data;
dev->dev_ops = &ops;
- dev->driver = NULL;
dev->rx_pkt_burst = pmd_rx_burst;
dev->tx_pkt_burst = pmd_tx_burst;
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);
+ }
+
tap_kernel_support(pmd);
if (!pmd->flower_support)
return 0;
remote_iface);
return 0;
}
- if (tap_ioctl(pmd, SIOCGIFHWADDR, &ifr, 0, REMOTE_ONLY) < 0) {
- RTE_LOG(ERR, PMD, "Could not get remote MAC address\n");
+ if (tap_ioctl(pmd, SIOCGIFHWADDR, &ifr, 0, REMOTE_ONLY) < 0)
goto error_exit;
- }
rte_memcpy(&pmd->eth_addr, ifr.ifr_hwaddr.sa_data,
ETHER_ADDR_LEN);
- } else {
- eth_random_addr((uint8_t *)&pmd->eth_addr);
}
return 0;
error_exit:
- RTE_LOG(DEBUG, PMD, "TAP Unable to initialize %s\n", name);
+ RTE_LOG(DEBUG, PMD, "TAP Unable to initialize %s\n",
+ rte_vdev_device_name(vdev));
rte_free(data);
- rte_free(pmd);
-
- rte_eth_dev_release_port(dev);
-
return -EINVAL;
}
return 0;
}
+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;
+ return 0;
+}
+
/* Open a TAP interface device.
*/
static int
int speed;
char tap_name[RTE_ETH_NAME_MAX_LEN];
char remote_iface[RTE_ETH_NAME_MAX_LEN];
+ int fixed_mac_type = 0;
name = rte_vdev_device_name(dev);
params = rte_vdev_device_args(dev);
if (ret == -1)
goto leave;
}
+
+ if (rte_kvargs_count(kvlist, ETH_TAP_MAC_ARG) == 1) {
+ ret = rte_kvargs_process(kvlist,
+ ETH_TAP_MAC_ARG,
+ &set_mac_type,
+ &fixed_mac_type);
+ if (ret == -1)
+ goto leave;
+ }
}
}
pmd_link.link_speed = speed;
RTE_LOG(NOTICE, PMD, "Initializing pmd_tap for %s as %s\n",
name, tap_name);
- ret = eth_dev_tap_create(name, tap_name, remote_iface);
+ ret = eth_dev_tap_create(dev, tap_name, remote_iface, fixed_mac_type);
leave:
if (ret == -1) {
};
RTE_PMD_REGISTER_VDEV(net_tap, pmd_tap_drv);
RTE_PMD_REGISTER_ALIAS(net_tap, eth_tap);
-RTE_PMD_REGISTER_PARAM_STRING(net_tap, "iface=<string>,speed=N");
+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_REMOTE_ARG "=<string>");
git.droids-corp.org / dpdk.git / blobdiff