@@ -220,6 +220,9 @@ New Features
Merged l3fwd-acl code into l3fwd as l3fwd-acl contains duplicate
and common functions to l3fwd.
+* **Updated pcap driver.**
+
+ * Added support for MTU on Linux network interfaces.
Removed Items
-------------
@@ -807,6 +807,47 @@ eth_stats_reset(struct rte_eth_dev *dev)
return 0;
}
+static int
+eth_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+ unsigned int i;
+ struct pmd_internals *internals = dev->data->dev_private;
+ int is_supported = 0;
+ int is_err = 0;
+
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ struct pcap_rx_queue *queue = &internals->rx_queue[i];
+
+ if ((strcmp(queue->type, ETH_PCAP_IFACE_ARG) == 0) ||
+ (strcmp(queue->type, ETH_PCAP_RX_IFACE_ARG) == 0) ||
+ (strcmp(queue->type, ETH_PCAP_RX_IFACE_IN_ARG) == 0)) {
+ is_supported = 1;
+ if (osdep_iface_mtu_set(queue->name, mtu) < 0)
+ is_err = 1;
+ }
+ }
+
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ struct pcap_tx_queue *queue = &internals->tx_queue[i];
+
+ if ((strcmp(queue->type, ETH_PCAP_IFACE_ARG) == 0) ||
+ (strcmp(queue->type, ETH_PCAP_TX_IFACE_ARG) == 0)) {
+ is_supported = 1;
+ if (osdep_iface_mtu_set(queue->name, mtu) < 0)
+ is_err = 1;
+ }
+ }
+
+ if (!is_supported)
+ return -ENOTSUP;
+
+ if (is_err)
+ return -1;
+
+ PMD_LOG(INFO, "MTU set %s %u\n", dev->device->name, mtu);
+ return 0;
+}
+
static inline void
infinite_rx_ring_free(struct rte_ring *pkts)
{
@@ -1004,6 +1045,7 @@ static const struct eth_dev_ops ops = {
.link_update = eth_link_update,
.stats_get = eth_stats_get,
.stats_reset = eth_stats_reset,
+ .mtu_set = eth_mtu_set,
};
static int
@@ -14,5 +14,6 @@ extern int eth_pcap_logtype;
int osdep_iface_index_get(const char *name);
int osdep_iface_mac_get(const char *name, struct rte_ether_addr *mac);
+int osdep_iface_mtu_set(const char *name, uint16_t mtu);
#endif
@@ -57,3 +57,10 @@ osdep_iface_mac_get(const char *if_name, struct rte_ether_addr *mac)
rte_free(buf);
return 0;
}
+
+int
+osdep_iface_mtu_set(__rte_unused const char *if_name, __rte_unused uint16_t mtu)
+{
+ PMD_LOG(ERR, "mtu set not supported on freebsd\n");
+ return -ENOTSUP;
+}
@@ -40,3 +40,24 @@ osdep_iface_mac_get(const char *if_name, struct rte_ether_addr *mac)
close(if_fd);
return 0;
}
+
+int
+osdep_iface_mtu_set(const char *if_name, uint16_t mtu)
+{
+ struct ifreq ifr;
+ int if_fd = socket(AF_INET, SOCK_DGRAM, 0);
+
+ if (if_fd == -1)
+ return -1;
+
+ rte_strscpy(ifr.ifr_name, if_name, sizeof(ifr.ifr_name));
+ ifr.ifr_mtu = mtu;
+ if (ioctl(if_fd, SIOCSIFMTU, &ifr)) {
+ PMD_LOG(ERR, "%s mtu set to %d failed\n", if_name, mtu);
+ close(if_fd);
+ return -1;
+ }
+
+ close(if_fd);
+ return 0;
+}
@@ -116,3 +116,10 @@ osdep_iface_mac_get(const char *device_name, struct rte_ether_addr *mac)
free(info);
return ret;
}
+
+int
+osdep_iface_mtu_set(__rte_unused const char *device_name, __rte_unused uint16_t mtu)
+{
+ PMD_LOG(ERR, "mtu set not supported on Windows\n");
+ return -ENOTSUP;
+}