-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2014 John W. Linville <linville@tuxdriver.com>
- *
- * Originally based upon librte_pmd_pcap code:
- *
- * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
- * Copyright(c) 2014 6WIND S.A.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2014 John W. Linville <linville@tuxdriver.com>
+ * Originally based upon librte_pmd_pcap code:
+ * Copyright(c) 2010-2015 Intel Corporation.
+ * Copyright(c) 2014 6WIND S.A.
+ * All rights reserved.
*/
#include <rte_mbuf.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
+#include <rte_ethdev_vdev.h>
#include <rte_malloc.h>
#include <rte_kvargs.h>
-#include <rte_dev.h>
+#include <rte_bus_vdev.h>
#include <linux/if_ether.h>
#include <linux/if_packet.h>
#define ETH_AF_PACKET_BLOCKSIZE_ARG "blocksz"
#define ETH_AF_PACKET_FRAMESIZE_ARG "framesz"
#define ETH_AF_PACKET_FRAMECOUNT_ARG "framecnt"
+#define ETH_AF_PACKET_QDISC_BYPASS_ARG "qdisc_bypass"
#define DFLT_BLOCK_SIZE (1 << 12)
#define DFLT_FRAME_SIZE (1 << 11)
unsigned int framenum;
struct rte_mempool *mb_pool;
- uint8_t in_port;
+ uint16_t in_port;
volatile unsigned long rx_pkts;
volatile unsigned long err_pkts;
struct pkt_tx_queue {
int sockfd;
+ unsigned int frame_data_size;
struct iovec *rd;
uint8_t *map;
unsigned nb_queues;
int if_index;
+ char *if_name;
struct ether_addr eth_addr;
struct tpacket_req req;
ETH_AF_PACKET_BLOCKSIZE_ARG,
ETH_AF_PACKET_FRAMESIZE_ARG,
ETH_AF_PACKET_FRAMECOUNT_ARG,
+ ETH_AF_PACKET_QDISC_BYPASS_ARG,
NULL
};
-static const char *drivername = "AF_PACKET PMD";
-
static struct rte_eth_link pmd_link = {
.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_AUTONEG
};
static uint16_t
pbuf = (uint8_t *) ppd + ppd->tp_mac;
memcpy(rte_pktmbuf_mtod(mbuf, void *), pbuf, rte_pktmbuf_data_len(mbuf));
+ /* check for vlan info */
+ if (ppd->tp_status & TP_STATUS_VLAN_VALID) {
+ mbuf->vlan_tci = ppd->tp_vlan_tci;
+ mbuf->ol_flags |= (PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED);
+ }
+
/* release incoming frame and advance ring buffer */
ppd->tp_status = TP_STATUS_KERNEL;
if (++framenum >= framecount)
framenum = pkt_q->framenum;
ppd = (struct tpacket2_hdr *) pkt_q->rd[framenum].iov_base;
for (i = 0; i < nb_pkts; i++) {
+ mbuf = *bufs++;
+
+ /* drop oversized packets */
+ if (mbuf->pkt_len > pkt_q->frame_data_size) {
+ rte_pktmbuf_free(mbuf);
+ continue;
+ }
+
+ /* insert vlan info if necessary */
+ if (mbuf->ol_flags & PKT_TX_VLAN_PKT) {
+ if (rte_vlan_insert(&mbuf)) {
+ rte_pktmbuf_free(mbuf);
+ continue;
+ }
+ }
+
/* point at the next incoming frame */
if ((ppd->tp_status != TP_STATUS_AVAILABLE) &&
(poll(&pfd, 1, -1) < 0))
- continue;
+ break;
/* copy the tx frame data */
- mbuf = bufs[num_tx];
pbuf = (uint8_t *) ppd + TPACKET2_HDRLEN -
sizeof(struct sockaddr_ll);
- memcpy(pbuf, rte_pktmbuf_mtod(mbuf, void*), rte_pktmbuf_data_len(mbuf));
- ppd->tp_len = ppd->tp_snaplen = rte_pktmbuf_data_len(mbuf);
+
+ struct rte_mbuf *tmp_mbuf = mbuf;
+ while (tmp_mbuf) {
+ uint16_t data_len = rte_pktmbuf_data_len(tmp_mbuf);
+ memcpy(pbuf, rte_pktmbuf_mtod(tmp_mbuf, void*), data_len);
+ pbuf += data_len;
+ tmp_mbuf = tmp_mbuf->next;
+ }
+
+ ppd->tp_len = mbuf->pkt_len;
+ ppd->tp_snaplen = mbuf->pkt_len;
/* release incoming frame and advance ring buffer */
ppd->tp_status = TP_STATUS_SEND_REQUEST;
}
/* kick-off transmits */
- if (sendto(pkt_q->sockfd, NULL, 0, MSG_DONTWAIT, NULL, 0) == -1)
- return 0; /* error sending -- no packets transmitted */
+ if (sendto(pkt_q->sockfd, NULL, 0, MSG_DONTWAIT, NULL, 0) == -1) {
+ /* error sending -- no packets transmitted */
+ num_tx = 0;
+ num_tx_bytes = 0;
+ }
pkt_q->framenum = framenum;
pkt_q->tx_pkts += num_tx;
- pkt_q->err_pkts += nb_pkts - num_tx;
+ pkt_q->err_pkts += i - num_tx;
pkt_q->tx_bytes += num_tx_bytes;
- return num_tx;
+ return i;
}
static int
sockfd = internals->rx_queue[i].sockfd;
if (sockfd != -1)
close(sockfd);
- sockfd = internals->tx_queue[i].sockfd;
- if (sockfd != -1)
- close(sockfd);
+
+ /* Prevent use after free in case tx fd == rx fd */
+ if (sockfd != internals->tx_queue[i].sockfd) {
+ sockfd = internals->tx_queue[i].sockfd;
+ if (sockfd != -1)
+ close(sockfd);
+ }
+
+ internals->rx_queue[i].sockfd = -1;
+ internals->tx_queue[i].sockfd = -1;
}
dev->data->dev_link.link_status = ETH_LINK_DOWN;
{
struct pmd_internals *internals = dev->data->dev_private;
- dev_info->driver_name = drivername;
dev_info->if_index = internals->if_index;
dev_info->max_mac_addrs = 1;
dev_info->max_rx_pktlen = (uint32_t)ETH_FRAME_LEN;
dev_info->max_rx_queues = (uint16_t)internals->nb_queues;
dev_info->max_tx_queues = (uint16_t)internals->nb_queues;
dev_info->min_rx_bufsize = 0;
- dev_info->pci_dev = NULL;
}
-static void
+static int
eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *igb_stats)
{
unsigned i, imax;
igb_stats->opackets = tx_total;
igb_stats->oerrors = tx_err_total;
igb_stats->obytes = tx_bytes_total;
+ return 0;
}
static void
{
struct pmd_internals *internals = dev->data->dev_private;
struct pkt_rx_queue *pkt_q = &internals->rx_queue[rx_queue_id];
- uint16_t buf_size;
+ unsigned int buf_size, data_size;
pkt_q->mb_pool = mb_pool;
/* Now get the space available for data in the mbuf */
- buf_size = (uint16_t)(rte_pktmbuf_data_room_size(pkt_q->mb_pool) -
- RTE_PKTMBUF_HEADROOM);
+ buf_size = rte_pktmbuf_data_room_size(pkt_q->mb_pool) -
+ RTE_PKTMBUF_HEADROOM;
+ data_size = internals->req.tp_frame_size;
+ data_size -= TPACKET2_HDRLEN - sizeof(struct sockaddr_ll);
- if (ETH_FRAME_LEN > buf_size) {
+ if (data_size > buf_size) {
RTE_LOG(ERR, PMD,
"%s: %d bytes will not fit in mbuf (%d bytes)\n",
- dev->data->name, ETH_FRAME_LEN, buf_size);
+ dev->device->name, data_size, buf_size);
return -ENOMEM;
}
return 0;
}
+static int
+eth_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+ struct ifreq ifr = { .ifr_mtu = mtu };
+ int ret;
+ int s;
+ unsigned int data_size = internals->req.tp_frame_size -
+ TPACKET2_HDRLEN -
+ sizeof(struct sockaddr_ll);
+
+ if (mtu > data_size)
+ return -EINVAL;
+
+ s = socket(PF_INET, SOCK_DGRAM, 0);
+ if (s < 0)
+ return -EINVAL;
+
+ snprintf(ifr.ifr_name, IFNAMSIZ, "%s", internals->if_name);
+ ret = ioctl(s, SIOCSIFMTU, &ifr);
+ close(s);
+
+ if (ret < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static void
+eth_dev_change_flags(char *if_name, uint32_t flags, uint32_t mask)
+{
+ struct ifreq ifr;
+ int s;
+
+ s = socket(PF_INET, SOCK_DGRAM, 0);
+ if (s < 0)
+ return;
+
+ snprintf(ifr.ifr_name, IFNAMSIZ, "%s", if_name);
+ if (ioctl(s, SIOCGIFFLAGS, &ifr) < 0)
+ goto out;
+ ifr.ifr_flags &= mask;
+ ifr.ifr_flags |= flags;
+ if (ioctl(s, SIOCSIFFLAGS, &ifr) < 0)
+ goto out;
+out:
+ close(s);
+}
+
+static void
+eth_dev_promiscuous_enable(struct rte_eth_dev *dev)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+
+ eth_dev_change_flags(internals->if_name, IFF_PROMISC, ~0);
+}
+
+static void
+eth_dev_promiscuous_disable(struct rte_eth_dev *dev)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+
+ eth_dev_change_flags(internals->if_name, 0, ~IFF_PROMISC);
+}
+
static const struct eth_dev_ops ops = {
.dev_start = eth_dev_start,
.dev_stop = eth_dev_stop,
.dev_close = eth_dev_close,
.dev_configure = eth_dev_configure,
.dev_infos_get = eth_dev_info,
+ .mtu_set = eth_dev_mtu_set,
+ .promiscuous_enable = eth_dev_promiscuous_enable,
+ .promiscuous_disable = eth_dev_promiscuous_disable,
.rx_queue_setup = eth_rx_queue_setup,
.tx_queue_setup = eth_tx_queue_setup,
.rx_queue_release = eth_queue_release,
return 0;
}
+static struct rte_vdev_driver pmd_af_packet_drv;
+
static int
-rte_pmd_init_internals(const char *name,
+rte_pmd_init_internals(struct rte_vdev_device *dev,
const int sockfd,
const unsigned nb_queues,
unsigned int blocksize,
unsigned int blockcnt,
unsigned int framesize,
unsigned int framecnt,
- const unsigned numa_node,
+ unsigned int qdisc_bypass,
struct pmd_internals **internals,
struct rte_eth_dev **eth_dev,
struct rte_kvargs *kvlist)
{
+ const char *name = rte_vdev_device_name(dev);
+ const unsigned int numa_node = dev->device.numa_node;
struct rte_eth_dev_data *data = NULL;
struct rte_kvargs_pair *pair = NULL;
struct ifreq ifr;
int rc, tpver, discard;
int qsockfd = -1;
unsigned int i, q, rdsize;
- int fanout_arg __rte_unused, bypass __rte_unused;
+#if defined(PACKET_FANOUT)
+ int fanout_arg;
+#endif
for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
pair = &kvlist->pairs[k_idx];
name);
goto error_early;
}
+ (*internals)->if_name = strdup(pair->value);
+ if ((*internals)->if_name == NULL)
+ goto error_early;
(*internals)->if_index = ifr.ifr_ifindex;
if (ioctl(sockfd, SIOCGIFHWADDR, &ifr) == -1) {
}
#if defined(PACKET_QDISC_BYPASS)
- bypass = 1;
rc = setsockopt(qsockfd, SOL_PACKET, PACKET_QDISC_BYPASS,
- &bypass, sizeof(bypass));
+ &qdisc_bypass, sizeof(qdisc_bypass));
if (rc == -1) {
RTE_LOG(ERR, PMD,
"%s: could not set PACKET_QDISC_BYPASS "
pair->value);
goto error;
}
+#else
+ RTE_SET_USED(qdisc_bypass);
#endif
rc = setsockopt(qsockfd, SOL_PACKET, PACKET_RX_RING, req, sizeof(*req));
tx_queue = &((*internals)->tx_queue[q]);
tx_queue->framecount = req->tp_frame_nr;
+ tx_queue->frame_data_size = req->tp_frame_size;
+ tx_queue->frame_data_size -= TPACKET2_HDRLEN -
+ sizeof(struct sockaddr_ll);
tx_queue->map = rx_queue->map + req->tp_block_size * req->tp_block_nr;
}
/* reserve an ethdev entry */
- *eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_VIRTUAL);
+ *eth_dev = rte_eth_vdev_allocate(dev, 0);
if (*eth_dev == NULL)
goto error;
(*internals)->nb_queues = nb_queues;
+ rte_memcpy(data, (*eth_dev)->data, sizeof(*data));
data->dev_private = *internals;
- data->port_id = (*eth_dev)->data->port_id;
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;
- strncpy(data->name,
- (*eth_dev)->data->name, strlen((*eth_dev)->data->name));
(*eth_dev)->data = data;
(*eth_dev)->dev_ops = &ops;
- (*eth_dev)->driver = NULL;
- (*eth_dev)->data->dev_flags = RTE_ETH_DEV_DETACHABLE;
- (*eth_dev)->data->drv_name = drivername;
- (*eth_dev)->data->kdrv = RTE_KDRV_NONE;
- (*eth_dev)->data->numa_node = numa_node;
return 0;
((*internals)->rx_queue[q].sockfd != qsockfd))
close((*internals)->rx_queue[q].sockfd);
}
+ free((*internals)->if_name);
rte_free(*internals);
error_early:
rte_free(data);
}
static int
-rte_eth_from_packet(const char *name,
+rte_eth_from_packet(struct rte_vdev_device *dev,
int const *sockfd,
- const unsigned numa_node,
struct rte_kvargs *kvlist)
{
+ const char *name = rte_vdev_device_name(dev);
struct pmd_internals *internals = NULL;
struct rte_eth_dev *eth_dev = NULL;
struct rte_kvargs_pair *pair = NULL;
unsigned int framesize = DFLT_FRAME_SIZE;
unsigned int framecount = DFLT_FRAME_COUNT;
unsigned int qpairs = 1;
+ unsigned int qdisc_bypass = 1;
/* do some parameter checking */
if (*sockfd < 0)
}
continue;
}
+ if (strstr(pair->key, ETH_AF_PACKET_QDISC_BYPASS_ARG) != NULL) {
+ qdisc_bypass = atoi(pair->value);
+ if (qdisc_bypass > 1) {
+ RTE_LOG(ERR, PMD,
+ "%s: invalid bypass value\n",
+ name);
+ return -1;
+ }
+ continue;
+ }
}
if (framesize > blocksize) {
RTE_LOG(INFO, PMD, "%s:\tframe size %d\n", name, framesize);
RTE_LOG(INFO, PMD, "%s:\tframe count %d\n", name, framecount);
- if (rte_pmd_init_internals(name, *sockfd, qpairs,
- blocksize, blockcount,
- framesize, framecount,
- numa_node, &internals, ð_dev,
- kvlist) < 0)
+ if (rte_pmd_init_internals(dev, *sockfd, qpairs,
+ blocksize, blockcount,
+ framesize, framecount,
+ qdisc_bypass,
+ &internals, ð_dev,
+ kvlist) < 0)
return -1;
eth_dev->rx_pkt_burst = eth_af_packet_rx;
}
static int
-rte_pmd_af_packet_devinit(const char *name, const char *params)
+rte_pmd_af_packet_probe(struct rte_vdev_device *dev)
{
- unsigned numa_node;
int ret = 0;
struct rte_kvargs *kvlist;
int sockfd = -1;
- RTE_LOG(INFO, PMD, "Initializing pmd_af_packet for %s\n", name);
+ RTE_LOG(INFO, PMD, "Initializing pmd_af_packet for %s\n",
+ rte_vdev_device_name(dev));
- numa_node = rte_socket_id();
-
- kvlist = rte_kvargs_parse(params, valid_arguments);
+ kvlist = rte_kvargs_parse(rte_vdev_device_args(dev), valid_arguments);
if (kvlist == NULL) {
ret = -1;
goto exit;
goto exit;
}
- ret = rte_eth_from_packet(name, &sockfd, numa_node, kvlist);
+ if (dev->device.numa_node == SOCKET_ID_ANY)
+ dev->device.numa_node = rte_socket_id();
+
+ ret = rte_eth_from_packet(dev, &sockfd, kvlist);
close(sockfd); /* no longer needed */
exit:
}
static int
-rte_pmd_af_packet_devuninit(const char *name)
+rte_pmd_af_packet_remove(struct rte_vdev_device *dev)
{
struct rte_eth_dev *eth_dev = NULL;
struct pmd_internals *internals;
RTE_LOG(INFO, PMD, "Closing AF_PACKET ethdev on numa socket %u\n",
rte_socket_id());
- if (name == NULL)
+ if (dev == NULL)
return -1;
/* find the ethdev entry */
- eth_dev = rte_eth_dev_allocated(name);
+ eth_dev = rte_eth_dev_allocated(rte_vdev_device_name(dev));
if (eth_dev == NULL)
return -1;
rte_free(internals->rx_queue[q].rd);
rte_free(internals->tx_queue[q].rd);
}
+ free(internals->if_name);
rte_free(eth_dev->data->dev_private);
rte_free(eth_dev->data);
return 0;
}
-static struct rte_driver pmd_af_packet_drv = {
- .name = "eth_af_packet",
- .type = PMD_VDEV,
- .init = rte_pmd_af_packet_devinit,
- .uninit = rte_pmd_af_packet_devuninit,
+static struct rte_vdev_driver pmd_af_packet_drv = {
+ .probe = rte_pmd_af_packet_probe,
+ .remove = rte_pmd_af_packet_remove,
};
-PMD_REGISTER_DRIVER(pmd_af_packet_drv, eth_af_packet);
-DRIVER_REGISTER_PARAM_STRING(eth_af_packet, "iface=<string> "
-"qpairs=<int> blocksz=<int> framesz=<int> framecnt=<int>");
+RTE_PMD_REGISTER_VDEV(net_af_packet, pmd_af_packet_drv);
+RTE_PMD_REGISTER_ALIAS(net_af_packet, eth_af_packet);
+RTE_PMD_REGISTER_PARAM_STRING(net_af_packet,
+ "iface=<string> "
+ "qpairs=<int> "
+ "blocksz=<int> "
+ "framesz=<int> "
+ "framecnt=<int> "
+ "qdisc_bypass=<0|1>");
git.droids-corp.org / dpdk.git / blobdiff