#define ETH_PCAP_TX_IFACE_ARG "tx_iface"
#define ETH_PCAP_IFACE_ARG "iface"
+#define ETH_PCAP_ARG_MAXLEN 64
+
static char errbuf[PCAP_ERRBUF_SIZE];
static struct timeval start_time;
static uint64_t start_cycles;
struct pcap_rx_queue {
pcap_t *pcap;
+ uint8_t in_port;
struct rte_mempool *mb_pool;
volatile unsigned long rx_pkts;
volatile unsigned long err_pkts;
+ char name[PATH_MAX];
+ char type[ETH_PCAP_ARG_MAXLEN];
};
struct pcap_tx_queue {
pcap_t *pcap;
volatile unsigned long tx_pkts;
volatile unsigned long err_pkts;
+ char name[PATH_MAX];
+ char type[ETH_PCAP_ARG_MAXLEN];
};
struct rx_pcaps {
unsigned num_of_rx;
pcap_t *pcaps[RTE_PMD_RING_MAX_RX_RINGS];
+ const char *names[RTE_PMD_RING_MAX_RX_RINGS];
+ const char *types[RTE_PMD_RING_MAX_RX_RINGS];
};
struct tx_pcaps {
unsigned num_of_tx;
pcap_dumper_t *dumpers[RTE_PMD_RING_MAX_TX_RINGS];
pcap_t *pcaps[RTE_PMD_RING_MAX_RX_RINGS];
+ const char *names[RTE_PMD_RING_MAX_RX_RINGS];
+ const char *types[RTE_PMD_RING_MAX_RX_RINGS];
};
struct pmd_internals {
+ struct pcap_rx_queue rx_queue[RTE_PMD_RING_MAX_RX_RINGS];
+ struct pcap_tx_queue tx_queue[RTE_PMD_RING_MAX_TX_RINGS];
unsigned nb_rx_queues;
unsigned nb_tx_queues;
-
int if_index;
-
- struct pcap_rx_queue rx_queue[RTE_PMD_RING_MAX_RX_RINGS];
- struct pcap_tx_queue tx_queue[RTE_PMD_RING_MAX_TX_RINGS];
+ int single_iface;
};
const char *valid_arguments[] = {
NULL
};
+static int open_single_tx_pcap(const char *pcap_filename, pcap_dumper_t **dumper);
+static int open_single_rx_pcap(const char *pcap_filename, pcap_t **pcap);
+static int open_single_iface(const char *iface, pcap_t **pcap);
+
static struct ether_addr eth_addr = { .addr_bytes = { 0, 0, 0, 0x1, 0x2, 0x3 } };
static const char *drivername = "Pcap PMD";
static struct rte_eth_link pmd_link = {
const u_char *packet;
struct rte_mbuf *mbuf;
struct pcap_rx_queue *pcap_q = queue;
- struct rte_pktmbuf_pool_private *mbp_priv;
uint16_t num_rx = 0;
uint16_t buf_size;
break;
/* Now get the space available for data in the mbuf */
- mbp_priv = rte_mempool_get_priv(pcap_q->mb_pool);
- buf_size = (uint16_t) (mbp_priv->mbuf_data_room_size -
+ buf_size = (uint16_t)(rte_pktmbuf_data_room_size(pcap_q->mb_pool) -
RTE_PKTMBUF_HEADROOM);
if (header.len <= buf_size) {
/* pcap packet will fit in the mbuf, go ahead and copy */
- rte_memcpy(mbuf->pkt.data, packet, header.len);
- mbuf->pkt.data_len = (uint16_t)header.len;
- mbuf->pkt.pkt_len = mbuf->pkt.data_len;
- bufs[i] = mbuf;
+ rte_memcpy(rte_pktmbuf_mtod(mbuf, void *), packet,
+ header.len);
+ mbuf->data_len = (uint16_t)header.len;
+ mbuf->pkt_len = mbuf->data_len;
+ mbuf->port = pcap_q->in_port;
+ bufs[num_rx] = mbuf;
num_rx++;
} else {
/* pcap packet will not fit in the mbuf, so drop packet */
for (i = 0; i < nb_pkts; i++) {
mbuf = bufs[i];
calculate_timestamp(&header.ts);
- header.len = mbuf->pkt.data_len;
+ header.len = mbuf->data_len;
header.caplen = header.len;
- pcap_dump((u_char*) dumper_q->dumper, &header, mbuf->pkt.data);
+ pcap_dump((u_char *)dumper_q->dumper, &header,
+ rte_pktmbuf_mtod(mbuf, void*));
rte_pktmbuf_free(mbuf);
num_tx++;
}
for (i = 0; i < nb_pkts; i++) {
mbuf = bufs[i];
- ret = pcap_sendpacket(tx_queue->pcap, (u_char*) mbuf->pkt.data,
- mbuf->pkt.data_len);
+ ret = pcap_sendpacket(tx_queue->pcap,
+ rte_pktmbuf_mtod(mbuf, u_char *),
+ mbuf->data_len);
if (unlikely(ret != 0))
break;
num_tx++;
static int
eth_dev_start(struct rte_eth_dev *dev)
{
+ unsigned i;
+ struct pmd_internals *internals = dev->data->dev_private;
+ struct pcap_tx_queue *tx;
+ struct pcap_rx_queue *rx;
+
+ /* Special iface case. Single pcap is open and shared between tx/rx. */
+ if (internals->single_iface) {
+ tx = &internals->tx_queue[0];
+ rx = &internals->rx_queue[0];
+
+ if (!tx->pcap && strcmp(tx->type, ETH_PCAP_IFACE_ARG) == 0) {
+ if (open_single_iface(tx->name, &tx->pcap) < 0)
+ return -1;
+ rx->pcap = tx->pcap;
+ }
+ goto status_up;
+ }
+
+ /* If not open already, open tx pcaps/dumpers */
+ for (i = 0; i < internals->nb_tx_queues; i++) {
+ tx = &internals->tx_queue[i];
+
+ if (!tx->dumper && strcmp(tx->type, ETH_PCAP_TX_PCAP_ARG) == 0) {
+ if (open_single_tx_pcap(tx->name, &tx->dumper) < 0)
+ return -1;
+ }
+
+ else if (!tx->pcap && strcmp(tx->type, ETH_PCAP_TX_IFACE_ARG) == 0) {
+ if (open_single_iface(tx->name, &tx->pcap) < 0)
+ return -1;
+ }
+ }
+
+ /* If not open already, open rx pcaps */
+ for (i = 0; i < internals->nb_rx_queues; i++) {
+ rx = &internals->rx_queue[i];
+
+ if (rx->pcap != NULL)
+ continue;
+
+ if (strcmp(rx->type, ETH_PCAP_RX_PCAP_ARG) == 0) {
+ if (open_single_rx_pcap(rx->name, &rx->pcap) < 0)
+ return -1;
+ }
+
+ else if (strcmp(rx->type, ETH_PCAP_RX_IFACE_ARG) == 0) {
+ if (open_single_iface(rx->name, &rx->pcap) < 0)
+ return -1;
+ }
+ }
+
+status_up:
+
dev->data->dev_link.link_status = 1;
return 0;
}
eth_dev_stop(struct rte_eth_dev *dev)
{
unsigned i;
- pcap_dumper_t *dumper;
- pcap_t *pcap;
struct pmd_internals *internals = dev->data->dev_private;
+ struct pcap_tx_queue *tx;
+ struct pcap_rx_queue *rx;
+
+ /* Special iface case. Single pcap is open and shared between tx/rx. */
+ if (internals->single_iface) {
+ tx = &internals->tx_queue[0];
+ rx = &internals->rx_queue[0];
+ pcap_close(tx->pcap);
+ tx->pcap = NULL;
+ rx->pcap = NULL;
+ goto status_down;
+ }
for (i = 0; i < internals->nb_tx_queues; i++) {
- dumper = internals->tx_queue[i].dumper;
- if(dumper != NULL)
- pcap_dump_close(dumper);
- pcap = internals->tx_queue[i].pcap;
- if(pcap != NULL)
- pcap_close(pcap);
+ tx = &internals->tx_queue[i];
+
+ if (tx->dumper != NULL) {
+ pcap_dump_close(tx->dumper);
+ tx->dumper = NULL;
+ }
+
+ if (tx->pcap != NULL) {
+ pcap_close(tx->pcap);
+ tx->pcap = NULL;
+ }
}
+ for (i = 0; i < internals->nb_rx_queues; i++) {
+ rx = &internals->rx_queue[i];
+
+ if (rx->pcap != NULL) {
+ pcap_close(rx->pcap);
+ rx->pcap = NULL;
+ }
+ }
+
+status_down:
dev->data->dev_link.link_status = 0;
}
unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0;
const struct pmd_internals *internal = dev->data->dev_private;
- memset(igb_stats, 0, sizeof(*igb_stats));
for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && i < internal->nb_rx_queues;
i++) {
igb_stats->q_ipackets[i] = internal->rx_queue[i].rx_pkts;
struct pcap_rx_queue *pcap_q = &internals->rx_queue[rx_queue_id];
pcap_q->mb_pool = mb_pool;
dev->data->rx_queues[rx_queue_id] = pcap_q;
+ pcap_q->in_port = dev->data->port_id;
return 0;
}
return 0;
}
-static 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,
- .rx_queue_setup = eth_rx_queue_setup,
- .tx_queue_setup = eth_tx_queue_setup,
- .rx_queue_release = eth_queue_release,
- .tx_queue_release = eth_queue_release,
- .link_update = eth_link_update,
- .stats_get = eth_stats_get,
- .stats_reset = eth_stats_reset,
+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,
+ .rx_queue_setup = eth_rx_queue_setup,
+ .tx_queue_setup = eth_tx_queue_setup,
+ .rx_queue_release = eth_queue_release,
+ .tx_queue_release = eth_queue_release,
+ .link_update = eth_link_update,
+ .stats_get = eth_stats_get,
+ .stats_reset = eth_stats_reset,
+};
+
+static struct eth_driver rte_pcap_pmd = {
+ .pci_drv = {
+ .name = "rte_pcap_pmd",
+ .drv_flags = RTE_PCI_DRV_DETACHABLE,
+ },
};
/*
* reference of it for use it later on.
*/
static int
-open_rx_pcap(const char *key __rte_unused, const char *value, void *extra_args)
+open_rx_pcap(const char *key, const char *value, void *extra_args)
{
unsigned i;
const char *pcap_filename = value;
struct rx_pcaps *pcaps = extra_args;
- pcap_t *rx_pcap;
+ pcap_t *pcap = NULL;
for (i = 0; i < pcaps->num_of_rx; i++) {
- if ((rx_pcap = pcap_open_offline(pcap_filename, errbuf)) == NULL) {
- RTE_LOG(ERR, PMD, "Couldn't open %s: %s\n", pcap_filename, errbuf);
+ if (open_single_rx_pcap(pcap_filename, &pcap) < 0)
return -1;
- }
- pcaps->pcaps[i] = rx_pcap;
+
+ pcaps->pcaps[i] = pcap;
+ pcaps->names[i] = pcap_filename;
+ pcaps->types[i] = key;
}
return 0;
}
+static int
+open_single_rx_pcap(const char *pcap_filename, pcap_t **pcap)
+{
+ if ((*pcap = pcap_open_offline(pcap_filename, errbuf)) == NULL) {
+ RTE_LOG(ERR, PMD, "Couldn't open %s: %s\n", pcap_filename, errbuf);
+ return -1;
+ }
+ return 0;
+}
+
/*
* Opens a pcap file for writing and stores a reference to it
* for use it later on.
*/
static int
-open_tx_pcap(const char *key __rte_unused, const char *value, void *extra_args)
+open_tx_pcap(const char *key, const char *value, void *extra_args)
{
unsigned i;
const char *pcap_filename = value;
struct tx_pcaps *dumpers = extra_args;
- pcap_t *tx_pcap;
pcap_dumper_t *dumper;
for (i = 0; i < dumpers->num_of_tx; i++) {
- /*
- * We need to create a dummy empty pcap_t to use it
- * with pcap_dump_open(). We create big enough an Ethernet
- * pcap holder.
- */
- if ((tx_pcap = pcap_open_dead(DLT_EN10MB, RTE_ETH_PCAP_SNAPSHOT_LEN))
- == NULL) {
- RTE_LOG(ERR, PMD, "Couldn't create dead pcap\n");
+ if (open_single_tx_pcap(pcap_filename, &dumper) < 0)
return -1;
- }
- /* The dumper is created using the previous pcap_t reference */
- if ((dumper = pcap_dump_open(tx_pcap, pcap_filename)) == NULL) {
- RTE_LOG(ERR, PMD, "Couldn't open %s for writing.\n", pcap_filename);
- return -1;
- }
dumpers->dumpers[i] = dumper;
+ dumpers->names[i] = pcap_filename;
+ dumpers->types[i] = key;
+ }
+
+ return 0;
+}
+
+static int
+open_single_tx_pcap(const char *pcap_filename, pcap_dumper_t **dumper)
+{
+ pcap_t *tx_pcap;
+ /*
+ * We need to create a dummy empty pcap_t to use it
+ * with pcap_dump_open(). We create big enough an Ethernet
+ * pcap holder.
+ */
+
+ if ((tx_pcap = pcap_open_dead(DLT_EN10MB, RTE_ETH_PCAP_SNAPSHOT_LEN))
+ == NULL) {
+ RTE_LOG(ERR, PMD, "Couldn't create dead pcap\n");
+ return -1;
+ }
+
+ /* The dumper is created using the previous pcap_t reference */
+ if ((*dumper = pcap_dump_open(tx_pcap, pcap_filename)) == NULL) {
+ RTE_LOG(ERR, PMD, "Couldn't open %s for writing.\n", pcap_filename);
+ return -1;
}
return 0;
* Opens an interface for reading and writing
*/
static inline int
-open_rx_tx_iface(const char *key __rte_unused, const char *value, void *extra_args)
+open_rx_tx_iface(const char *key, const char *value, void *extra_args)
{
const char *iface = value;
- pcap_t **pcap = extra_args;
+ struct rx_pcaps *pcaps = extra_args;
+ pcap_t *pcap = NULL;
- if(open_iface_live(iface, pcap) < 0)
+ if (open_single_iface(iface, &pcap) < 0)
return -1;
+
+ pcaps->pcaps[0] = pcap;
+ pcaps->names[0] = iface;
+ pcaps->types[0] = key;
+
return 0;
}
* Opens a NIC for reading packets from it
*/
static inline int
-open_rx_iface(const char *key __rte_unused, const char *value, void *extra_args)
+open_rx_iface(const char *key, const char *value, void *extra_args)
{
unsigned i;
const char *iface = value;
pcap_t *pcap = NULL;
for (i = 0; i < pcaps->num_of_rx; i++) {
- if(open_iface_live(iface, &pcap) < 0)
+ if (open_single_iface(iface, &pcap) < 0)
return -1;
pcaps->pcaps[i] = pcap;
+ pcaps->names[i] = iface;
+ pcaps->types[i] = key;
}
return 0;
/*
* Opens a NIC for writing packets to it
*/
-static inline int
-open_tx_iface(const char *key __rte_unused, const char *value, void *extra_args)
+static int
+open_tx_iface(const char *key, const char *value, void *extra_args)
{
unsigned i;
const char *iface = value;
pcap_t *pcap;
for (i = 0; i < pcaps->num_of_tx; i++) {
- if(open_iface_live(iface, &pcap) < 0)
+ if (open_single_iface(iface, &pcap) < 0)
return -1;
pcaps->pcaps[i] = pcap;
+ pcaps->names[i] = iface;
+ pcaps->types[i] = key;
}
return 0;
}
+static int
+open_single_iface(const char *iface, pcap_t **pcap)
+{
+ if (open_iface_live(iface, pcap) < 0) {
+ RTE_LOG(ERR, PMD, "Couldn't open interface %s\n", iface);
+ return -1;
+ }
+
+ return 0;
+}
static int
rte_pmd_init_internals(const char *name, const unsigned nb_rx_queues,
goto error;
/* reserve an ethdev entry */
- *eth_dev = rte_eth_dev_allocate(name);
+ *eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_VIRTUAL);
if (*eth_dev == NULL)
goto error;
+ /* check length of device name */
+ if ((strlen((*eth_dev)->data->name) + 1) > sizeof(data->name))
+ goto error;
+
/* now put it all together
* - store queue data in internals,
* - store numa_node info in pci_driver
data->dev_private = *internals;
data->port_id = (*eth_dev)->data->port_id;
+ snprintf(data->name, sizeof(data->name), "%s", (*eth_dev)->data->name);
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 = ð_addr;
+ strncpy(data->name,
+ (*eth_dev)->data->name, strlen((*eth_dev)->data->name));
(*eth_dev)->data = data;
(*eth_dev)->dev_ops = &ops;
(*eth_dev)->pci_dev = pci_dev;
+ (*eth_dev)->driver = &rte_pcap_pmd;
return 0;
- error: if (data)
- rte_free(data);
- if (pci_dev)
- rte_free(pci_dev);
- if (*internals)
- rte_free(*internals);
+error:
+ rte_free(data);
+ rte_free(pci_dev);
+ rte_free(*internals);
+
return -1;
}
static int
-rte_eth_from_pcaps_n_dumpers(const char *name, pcap_t * const rx_queues[],
+rte_eth_from_pcaps_n_dumpers(const char *name,
+ struct rx_pcaps *rx_queues,
const unsigned nb_rx_queues,
- pcap_dumper_t * const tx_queues[],
+ struct tx_pcaps *tx_queues,
const unsigned nb_tx_queues,
const unsigned numa_node,
struct rte_kvargs *kvlist)
return -1;
for (i = 0; i < nb_rx_queues; i++) {
- internals->rx_queue->pcap = rx_queues[i];
+ internals->rx_queue[i].pcap = rx_queues->pcaps[i];
+ snprintf(internals->rx_queue[i].name,
+ sizeof(internals->rx_queue[i].name), "%s",
+ rx_queues->names[i]);
+ snprintf(internals->rx_queue[i].type,
+ sizeof(internals->rx_queue[i].type), "%s",
+ rx_queues->types[i]);
}
for (i = 0; i < nb_tx_queues; i++) {
- internals->tx_queue->dumper = tx_queues[i];
+ internals->tx_queue[i].dumper = tx_queues->dumpers[i];
+ snprintf(internals->tx_queue[i].name,
+ sizeof(internals->tx_queue[i].name), "%s",
+ tx_queues->names[i]);
+ snprintf(internals->tx_queue[i].type,
+ sizeof(internals->tx_queue[i].type), "%s",
+ tx_queues->types[i]);
}
+ /* using multiple pcaps/interfaces */
+ internals->single_iface = 0;
+
eth_dev->rx_pkt_burst = eth_pcap_rx;
eth_dev->tx_pkt_burst = eth_pcap_tx_dumper;
}
static int
-rte_eth_from_pcaps(const char *name, pcap_t * const rx_queues[],
+rte_eth_from_pcaps(const char *name,
+ struct rx_pcaps *rx_queues,
const unsigned nb_rx_queues,
- pcap_t * const tx_queues[],
+ struct tx_pcaps *tx_queues,
const unsigned nb_tx_queues,
const unsigned numa_node,
- struct rte_kvargs *kvlist)
+ struct rte_kvargs *kvlist,
+ int single_iface)
{
struct pmd_internals *internals = NULL;
struct rte_eth_dev *eth_dev = NULL;
return -1;
for (i = 0; i < nb_rx_queues; i++) {
- internals->rx_queue->pcap = rx_queues[i];
+ internals->rx_queue[i].pcap = rx_queues->pcaps[i];
+ snprintf(internals->rx_queue[i].name,
+ sizeof(internals->rx_queue[i].name), "%s",
+ rx_queues->names[i]);
+ snprintf(internals->rx_queue[i].type,
+ sizeof(internals->rx_queue[i].type), "%s",
+ rx_queues->types[i]);
}
for (i = 0; i < nb_tx_queues; i++) {
- internals->tx_queue->pcap = tx_queues[i];
+ internals->tx_queue[i].dumper = tx_queues->dumpers[i];
+ snprintf(internals->tx_queue[i].name,
+ sizeof(internals->tx_queue[i].name), "%s",
+ tx_queues->names[i]);
+ snprintf(internals->tx_queue[i].type,
+ sizeof(internals->tx_queue[i].type), "%s",
+ tx_queues->types[i]);
}
+ /* store wether we are using a single interface for rx/tx or not */
+ internals->single_iface = single_iface;
+
eth_dev->rx_pkt_burst = eth_pcap_rx;
eth_dev->tx_pkt_burst = eth_pcap_tx;
if (rte_kvargs_count(kvlist, ETH_PCAP_IFACE_ARG) == 1) {
ret = rte_kvargs_process(kvlist, ETH_PCAP_IFACE_ARG,
- &open_rx_tx_iface, &pcaps.pcaps[0]);
+ &open_rx_tx_iface, &pcaps);
if (ret < 0)
- return -1;
-
- return rte_eth_from_pcaps(pcaps.pcaps, 1, pcaps.pcaps, 1,
- numa_node, kvlist);
+ goto free_kvlist;
+ dumpers.pcaps[0] = pcaps.pcaps[0];
+ dumpers.names[0] = pcaps.names[0];
+ dumpers.types[0] = pcaps.types[0];
+ ret = rte_eth_from_pcaps(name, &pcaps, 1, &dumpers, 1,
+ numa_node, kvlist, 1);
+ goto free_kvlist;
}
/*
}
if (ret < 0)
- return -1;
+ goto free_kvlist;
/*
* We check whether we want to open a TX stream to a real NIC or a
}
if (ret < 0)
- return -1;
+ goto free_kvlist;
if (using_dumpers)
- return rte_eth_from_pcaps_n_dumpers(name, pcaps.pcaps, pcaps.num_of_rx,
- dumpers.dumpers, dumpers.num_of_tx, numa_node, kvlist);
+ ret = rte_eth_from_pcaps_n_dumpers(name, &pcaps, pcaps.num_of_rx,
+ &dumpers, dumpers.num_of_tx, numa_node, kvlist);
+ else
+ ret = rte_eth_from_pcaps(name, &pcaps, pcaps.num_of_rx, &dumpers,
+ dumpers.num_of_tx, numa_node, kvlist, 0);
- return rte_eth_from_pcaps(name, pcaps.pcaps, pcaps.num_of_rx, dumpers.pcaps,
- dumpers.num_of_tx, numa_node, kvlist);
+free_kvlist:
+ rte_kvargs_free(kvlist);
+ return ret;
+}
+static int
+rte_pmd_pcap_devuninit(const char *name)
+{
+ struct rte_eth_dev *eth_dev = NULL;
+
+ RTE_LOG(INFO, PMD, "Closing pcap ethdev on numa socket %u\n",
+ rte_socket_id());
+
+ if (name == NULL)
+ return -1;
+
+ /* reserve an ethdev entry */
+ eth_dev = rte_eth_dev_allocated(name);
+ if (eth_dev == NULL)
+ return -1;
+
+ rte_free(eth_dev->data->dev_private);
+ rte_free(eth_dev->data);
+ rte_free(eth_dev->pci_dev);
+
+ rte_eth_dev_release_port(eth_dev);
+
+ return 0;
}
static struct rte_driver pmd_pcap_drv = {
.name = "eth_pcap",
.type = PMD_VDEV,
.init = rte_pmd_pcap_devinit,
+ .uninit = rte_pmd_pcap_devuninit,
};
PMD_REGISTER_DRIVER(pmd_pcap_drv);
git.droids-corp.org / dpdk.git / blobdiff