New upstream version 18.11-rc4
[deb_dpdk.git] / drivers / net / pcap / rte_eth_pcap.c
index 7bbe72e..9fd9327 100644 (file)
@@ -58,8 +58,8 @@ struct queue_stat {
 };
 
 struct pcap_rx_queue {
-       pcap_t *pcap;
-       uint16_t in_port;
+       uint16_t port_id;
+       uint16_t queue_id;
        struct rte_mempool *mb_pool;
        struct queue_stat rx_stat;
        char name[PATH_MAX];
@@ -67,8 +67,8 @@ struct pcap_rx_queue {
 };
 
 struct pcap_tx_queue {
-       pcap_dumper_t *dumper;
-       pcap_t *pcap;
+       uint16_t port_id;
+       uint16_t queue_id;
        struct queue_stat tx_stat;
        char name[PATH_MAX];
        char type[ETH_PCAP_ARG_MAXLEN];
@@ -77,12 +77,19 @@ struct pcap_tx_queue {
 struct pmd_internals {
        struct pcap_rx_queue rx_queue[RTE_PMD_PCAP_MAX_QUEUES];
        struct pcap_tx_queue tx_queue[RTE_PMD_PCAP_MAX_QUEUES];
+       char devargs[ETH_PCAP_ARG_MAXLEN];
        struct ether_addr eth_addr;
        int if_index;
        int single_iface;
        int phy_mac;
 };
 
+struct pmd_process_private {
+       pcap_t *rx_pcap[RTE_PMD_PCAP_MAX_QUEUES];
+       pcap_t *tx_pcap[RTE_PMD_PCAP_MAX_QUEUES];
+       pcap_dumper_t *tx_dumper[RTE_PMD_PCAP_MAX_QUEUES];
+};
+
 struct pmd_devargs {
        unsigned int num_of_queue;
        struct devargs_queue {
@@ -176,14 +183,19 @@ eth_pcap_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 {
        unsigned int i;
        struct pcap_pkthdr header;
+       struct pmd_process_private *pp;
        const u_char *packet;
        struct rte_mbuf *mbuf;
        struct pcap_rx_queue *pcap_q = queue;
        uint16_t num_rx = 0;
        uint16_t buf_size;
        uint32_t rx_bytes = 0;
+       pcap_t *pcap;
+
+       pp = rte_eth_devices[pcap_q->port_id].process_private;
+       pcap = pp->rx_pcap[pcap_q->queue_id];
 
-       if (unlikely(pcap_q->pcap == NULL || nb_pkts == 0))
+       if (unlikely(pcap == NULL || nb_pkts == 0))
                return 0;
 
        /* Reads the given number of packets from the pcap file one by one
@@ -191,7 +203,7 @@ eth_pcap_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
         */
        for (i = 0; i < nb_pkts; i++) {
                /* Get the next PCAP packet */
-               packet = pcap_next(pcap_q->pcap, &header);
+               packet = pcap_next(pcap, &header);
                if (unlikely(packet == NULL))
                        break;
 
@@ -220,7 +232,7 @@ eth_pcap_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
                }
 
                mbuf->pkt_len = (uint16_t)header.caplen;
-               mbuf->port = pcap_q->in_port;
+               mbuf->port = pcap_q->port_id;
                bufs[num_rx] = mbuf;
                num_rx++;
                rx_bytes += header.caplen;
@@ -250,12 +262,17 @@ eth_pcap_tx_dumper(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 {
        unsigned int i;
        struct rte_mbuf *mbuf;
+       struct pmd_process_private *pp;
        struct pcap_tx_queue *dumper_q = queue;
        uint16_t num_tx = 0;
        uint32_t tx_bytes = 0;
        struct pcap_pkthdr header;
+       pcap_dumper_t *dumper;
+
+       pp = rte_eth_devices[dumper_q->port_id].process_private;
+       dumper = pp->tx_dumper[dumper_q->queue_id];
 
-       if (dumper_q->dumper == NULL || nb_pkts == 0)
+       if (dumper == NULL || nb_pkts == 0)
                return 0;
 
        /* writes the nb_pkts packets to the previously opened pcap file
@@ -267,12 +284,12 @@ eth_pcap_tx_dumper(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
                header.caplen = header.len;
 
                if (likely(mbuf->nb_segs == 1)) {
-                       pcap_dump((u_char *)dumper_q->dumper, &header,
+                       pcap_dump((u_char *)dumper, &header,
                                  rte_pktmbuf_mtod(mbuf, void*));
                } else {
                        if (mbuf->pkt_len <= ETHER_MAX_JUMBO_FRAME_LEN) {
                                eth_pcap_gather_data(tx_pcap_data, mbuf);
-                               pcap_dump((u_char *)dumper_q->dumper, &header,
+                               pcap_dump((u_char *)dumper, &header,
                                          tx_pcap_data);
                        } else {
                                PMD_LOG(ERR,
@@ -295,7 +312,7 @@ eth_pcap_tx_dumper(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
         * process stops and to make sure the pcap file is actually written,
         * we flush the pcap dumper within each burst.
         */
-       pcap_dump_flush(dumper_q->dumper);
+       pcap_dump_flush(dumper);
        dumper_q->tx_stat.pkts += num_tx;
        dumper_q->tx_stat.bytes += tx_bytes;
        dumper_q->tx_stat.err_pkts += nb_pkts - num_tx;
@@ -312,24 +329,29 @@ eth_pcap_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
        unsigned int i;
        int ret;
        struct rte_mbuf *mbuf;
+       struct pmd_process_private *pp;
        struct pcap_tx_queue *tx_queue = queue;
        uint16_t num_tx = 0;
        uint32_t tx_bytes = 0;
+       pcap_t *pcap;
 
-       if (unlikely(nb_pkts == 0 || tx_queue->pcap == NULL))
+       pp = rte_eth_devices[tx_queue->port_id].process_private;
+       pcap = pp->tx_pcap[tx_queue->queue_id];
+
+       if (unlikely(nb_pkts == 0 || pcap == NULL))
                return 0;
 
        for (i = 0; i < nb_pkts; i++) {
                mbuf = bufs[i];
 
                if (likely(mbuf->nb_segs == 1)) {
-                       ret = pcap_sendpacket(tx_queue->pcap,
+                       ret = pcap_sendpacket(pcap,
                                        rte_pktmbuf_mtod(mbuf, u_char *),
                                        mbuf->pkt_len);
                } else {
                        if (mbuf->pkt_len <= ETHER_MAX_JUMBO_FRAME_LEN) {
                                eth_pcap_gather_data(tx_pcap_data, mbuf);
-                               ret = pcap_sendpacket(tx_queue->pcap,
+                               ret = pcap_sendpacket(pcap,
                                                tx_pcap_data, mbuf->pkt_len);
                        } else {
                                PMD_LOG(ERR,
@@ -430,6 +452,7 @@ eth_dev_start(struct rte_eth_dev *dev)
 {
        unsigned int i;
        struct pmd_internals *internals = dev->data->dev_private;
+       struct pmd_process_private *pp = dev->process_private;
        struct pcap_tx_queue *tx;
        struct pcap_rx_queue *rx;
 
@@ -438,10 +461,11 @@ eth_dev_start(struct rte_eth_dev *dev)
                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)
+               if (!pp->tx_pcap[0] &&
+                       strcmp(tx->type, ETH_PCAP_IFACE_ARG) == 0) {
+                       if (open_single_iface(tx->name, &pp->tx_pcap[0]) < 0)
                                return -1;
-                       rx->pcap = tx->pcap;
+                       pp->rx_pcap[0] = pp->tx_pcap[0];
                }
 
                goto status_up;
@@ -451,13 +475,14 @@ eth_dev_start(struct rte_eth_dev *dev)
        for (i = 0; i < dev->data->nb_tx_queues; i++) {
                tx = &internals->tx_queue[i];
 
-               if (!tx->dumper &&
+               if (!pp->tx_dumper[i] &&
                                strcmp(tx->type, ETH_PCAP_TX_PCAP_ARG) == 0) {
-                       if (open_single_tx_pcap(tx->name, &tx->dumper) < 0)
+                       if (open_single_tx_pcap(tx->name,
+                               &pp->tx_dumper[i]) < 0)
                                return -1;
-               } else if (!tx->pcap &&
+               } else if (!pp->tx_pcap[i] &&
                                strcmp(tx->type, ETH_PCAP_TX_IFACE_ARG) == 0) {
-                       if (open_single_iface(tx->name, &tx->pcap) < 0)
+                       if (open_single_iface(tx->name, &pp->tx_pcap[i]) < 0)
                                return -1;
                }
        }
@@ -466,14 +491,14 @@ eth_dev_start(struct rte_eth_dev *dev)
        for (i = 0; i < dev->data->nb_rx_queues; i++) {
                rx = &internals->rx_queue[i];
 
-               if (rx->pcap != NULL)
+               if (pp->rx_pcap[i] != NULL)
                        continue;
 
                if (strcmp(rx->type, ETH_PCAP_RX_PCAP_ARG) == 0) {
-                       if (open_single_rx_pcap(rx->name, &rx->pcap) < 0)
+                       if (open_single_rx_pcap(rx->name, &pp->rx_pcap[i]) < 0)
                                return -1;
                } else if (strcmp(rx->type, ETH_PCAP_RX_IFACE_ARG) == 0) {
-                       if (open_single_iface(rx->name, &rx->pcap) < 0)
+                       if (open_single_iface(rx->name, &pp->rx_pcap[i]) < 0)
                                return -1;
                }
        }
@@ -500,39 +525,32 @@ eth_dev_stop(struct rte_eth_dev *dev)
 {
        unsigned int i;
        struct pmd_internals *internals = dev->data->dev_private;
-       struct pcap_tx_queue *tx;
-       struct pcap_rx_queue *rx;
+       struct pmd_process_private *pp = dev->process_private;
 
        /* 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;
+               pcap_close(pp->tx_pcap[0]);
+               pp->tx_pcap[0] = NULL;
+               pp->rx_pcap[0] = NULL;
                goto status_down;
        }
 
        for (i = 0; i < dev->data->nb_tx_queues; i++) {
-               tx = &internals->tx_queue[i];
-
-               if (tx->dumper != NULL) {
-                       pcap_dump_close(tx->dumper);
-                       tx->dumper = NULL;
+               if (pp->tx_dumper[i] != NULL) {
+                       pcap_dump_close(pp->tx_dumper[i]);
+                       pp->tx_dumper[i] = NULL;
                }
 
-               if (tx->pcap != NULL) {
-                       pcap_close(tx->pcap);
-                       tx->pcap = NULL;
+               if (pp->tx_pcap[i] != NULL) {
+                       pcap_close(pp->tx_pcap[i]);
+                       pp->tx_pcap[i] = NULL;
                }
        }
 
        for (i = 0; i < dev->data->nb_rx_queues; i++) {
-               rx = &internals->rx_queue[i];
-
-               if (rx->pcap != NULL) {
-                       pcap_close(rx->pcap);
-                       rx->pcap = NULL;
+               if (pp->rx_pcap[i] != NULL) {
+                       pcap_close(pp->rx_pcap[i]);
+                       pp->rx_pcap[i] = NULL;
                }
        }
 
@@ -649,8 +667,9 @@ eth_rx_queue_setup(struct rte_eth_dev *dev,
        struct pcap_rx_queue *pcap_q = &internals->rx_queue[rx_queue_id];
 
        pcap_q->mb_pool = mb_pool;
+       pcap_q->port_id = dev->data->port_id;
+       pcap_q->queue_id = rx_queue_id;
        dev->data->rx_queues[rx_queue_id] = pcap_q;
-       pcap_q->in_port = dev->data->port_id;
 
        return 0;
 }
@@ -663,8 +682,11 @@ eth_tx_queue_setup(struct rte_eth_dev *dev,
                const struct rte_eth_txconf *tx_conf __rte_unused)
 {
        struct pmd_internals *internals = dev->data->dev_private;
+       struct pcap_tx_queue *pcap_q = &internals->tx_queue[tx_queue_id];
 
-       dev->data->tx_queues[tx_queue_id] = &internals->tx_queue[tx_queue_id];
+       pcap_q->port_id = dev->data->port_id;
+       pcap_q->queue_id = tx_queue_id;
+       dev->data->tx_queues[tx_queue_id] = pcap_q;
 
        return 0;
 }
@@ -896,16 +918,29 @@ pmd_init_internals(struct rte_vdev_device *vdev,
                struct rte_eth_dev **eth_dev)
 {
        struct rte_eth_dev_data *data;
+       struct pmd_process_private *pp;
        unsigned int numa_node = vdev->device.numa_node;
 
        PMD_LOG(INFO, "Creating pcap-backed ethdev on numa socket %d",
                numa_node);
 
+       pp = (struct pmd_process_private *)
+               rte_zmalloc(NULL, sizeof(struct pmd_process_private),
+                               RTE_CACHE_LINE_SIZE);
+
+       if (pp == NULL) {
+               PMD_LOG(ERR,
+                       "Failed to allocate memory for process private");
+               return -1;
+       }
+
        /* reserve an ethdev entry */
        *eth_dev = rte_eth_vdev_allocate(vdev, sizeof(**internals));
-       if (!(*eth_dev))
+       if (!(*eth_dev)) {
+               rte_free(pp);
                return -1;
-
+       }
+       (*eth_dev)->process_private = pp;
        /* now put it all together
         * - store queue data in internals,
         * - store numa_node info in eth_dev
@@ -934,6 +969,9 @@ pmd_init_internals(struct rte_vdev_device *vdev,
         */
        (*eth_dev)->dev_ops = &ops;
 
+       strlcpy((*internals)->devargs, rte_vdev_device_args(vdev),
+                       ETH_PCAP_ARG_MAXLEN);
+
        return 0;
 }
 
@@ -1027,6 +1065,7 @@ eth_from_pcaps_common(struct rte_vdev_device *vdev,
                struct pmd_devargs *tx_queues, const unsigned int nb_tx_queues,
                struct pmd_internals **internals, struct rte_eth_dev **eth_dev)
 {
+       struct pmd_process_private *pp;
        unsigned int i;
 
        /* do some parameter checking */
@@ -1039,11 +1078,12 @@ eth_from_pcaps_common(struct rte_vdev_device *vdev,
                        eth_dev) < 0)
                return -1;
 
+       pp = (*eth_dev)->process_private;
        for (i = 0; i < nb_rx_queues; i++) {
                struct pcap_rx_queue *rx = &(*internals)->rx_queue[i];
                struct devargs_queue *queue = &rx_queues->queue[i];
 
-               rx->pcap = queue->pcap;
+               pp->rx_pcap[i] = queue->pcap;
                snprintf(rx->name, sizeof(rx->name), "%s", queue->name);
                snprintf(rx->type, sizeof(rx->type), "%s", queue->type);
        }
@@ -1052,8 +1092,8 @@ eth_from_pcaps_common(struct rte_vdev_device *vdev,
                struct pcap_tx_queue *tx = &(*internals)->tx_queue[i];
                struct devargs_queue *queue = &tx_queues->queue[i];
 
-               tx->dumper = queue->dumper;
-               tx->pcap = queue->pcap;
+               pp->tx_dumper[i] = queue->dumper;
+               pp->tx_pcap[i] = queue->pcap;
                snprintf(tx->name, sizeof(tx->name), "%s", queue->name);
                snprintf(tx->type, sizeof(tx->type), "%s", queue->type);
        }
@@ -1111,7 +1151,8 @@ pmd_pcap_probe(struct rte_vdev_device *dev)
        struct rte_kvargs *kvlist;
        struct pmd_devargs pcaps = {0};
        struct pmd_devargs dumpers = {0};
-       struct rte_eth_dev *eth_dev;
+       struct rte_eth_dev *eth_dev =  NULL;
+       struct pmd_internals *internal;
        int single_iface = 0;
        int ret;
 
@@ -1128,16 +1169,18 @@ pmd_pcap_probe(struct rte_vdev_device *dev)
                        PMD_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;
-               eth_dev->device = &dev->device;
-               rte_eth_dev_probing_finish(eth_dev);
-               return 0;
-       }
 
-       kvlist = rte_kvargs_parse(rte_vdev_device_args(dev), valid_arguments);
-       if (kvlist == NULL)
-               return -1;
+               internal = eth_dev->data->dev_private;
+
+               kvlist = rte_kvargs_parse(internal->devargs, valid_arguments);
+               if (kvlist == NULL)
+                       return -1;
+       } else {
+               kvlist = rte_kvargs_parse(rte_vdev_device_args(dev),
+                               valid_arguments);
+               if (kvlist == NULL)
+                       return -1;
+       }
 
        /*
         * If iface argument is passed we open the NICs and use them for
@@ -1202,6 +1245,45 @@ pmd_pcap_probe(struct rte_vdev_device *dev)
                goto free_kvlist;
 
 create_eth:
+       if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+               struct pmd_process_private *pp;
+               unsigned int i;
+
+               internal = eth_dev->data->dev_private;
+                       pp = (struct pmd_process_private *)
+                               rte_zmalloc(NULL,
+                                       sizeof(struct pmd_process_private),
+                                       RTE_CACHE_LINE_SIZE);
+
+               if (pp == NULL) {
+                       PMD_LOG(ERR,
+                               "Failed to allocate memory for process private");
+                       return -1;
+               }
+
+               eth_dev->dev_ops = &ops;
+               eth_dev->device = &dev->device;
+
+               /* setup process private */
+               for (i = 0; i < pcaps.num_of_queue; i++)
+                       pp->rx_pcap[i] = pcaps.queue[i].pcap;
+
+               for (i = 0; i < dumpers.num_of_queue; i++) {
+                       pp->tx_dumper[i] = dumpers.queue[i].dumper;
+                       pp->tx_pcap[i] = dumpers.queue[i].pcap;
+               }
+
+               eth_dev->process_private = pp;
+               eth_dev->rx_pkt_burst = eth_pcap_rx;
+               if (is_tx_pcap)
+                       eth_dev->tx_pkt_burst = eth_pcap_tx_dumper;
+               else
+                       eth_dev->tx_pkt_burst = eth_pcap_tx;
+
+               rte_eth_dev_probing_finish(eth_dev);
+               return 0;
+       }
+
        ret = eth_from_pcaps(dev, &pcaps, pcaps.num_of_queue, &dumpers,
                dumpers.num_of_queue, single_iface, is_tx_pcap);
 
@@ -1235,6 +1317,7 @@ pmd_pcap_remove(struct rte_vdev_device *dev)
                        eth_dev->data->mac_addrs = NULL;
        }
 
+       rte_free(eth_dev->process_private);
        rte_eth_dev_release_port(eth_dev);
 
        return 0;