net/txgbe: add Rx and Tx init
[dpdk.git] / drivers / net / ring / rte_eth_ring.c
index 41acbc5..d6115ab 100644 (file)
@@ -16,6 +16,7 @@
 #define ETH_RING_ACTION_CREATE         "CREATE"
 #define ETH_RING_ACTION_ATTACH         "ATTACH"
 #define ETH_RING_INTERNAL_ARG          "internal"
+#define ETH_RING_INTERNAL_ARG_MAX_LEN  19 /* "0x..16chars..\0" */
 
 static const char *valid_arguments[] = {
        ETH_RING_NUMA_NODE_ACTION_ARG,
@@ -61,7 +62,7 @@ static struct rte_eth_link pmd_link = {
        .link_autoneg = ETH_LINK_FIXED,
 };
 
-static int eth_ring_logtype;
+RTE_LOG_REGISTER(eth_ring_logtype, pmd.net.ring, NOTICE);
 
 #define PMD_LOG(level, fmt, args...) \
        rte_log(RTE_LOG_ ## level, eth_ring_logtype, \
@@ -105,10 +106,12 @@ eth_dev_start(struct rte_eth_dev *dev)
        return 0;
 }
 
-static void
+static int
 eth_dev_stop(struct rte_eth_dev *dev)
 {
+       dev->data->dev_started = 0;
        dev->data->dev_link.link_status = ETH_LINK_DOWN;
+       return 0;
 }
 
 static int
@@ -160,6 +163,8 @@ eth_dev_info(struct rte_eth_dev *dev,
        dev_info->max_mac_addrs = 1;
        dev_info->max_rx_pktlen = (uint32_t)-1;
        dev_info->max_rx_queues = (uint16_t)internals->max_rx_queues;
+       dev_info->rx_offload_capa = DEV_RX_OFFLOAD_SCATTER;
+       dev_info->tx_offload_capa = DEV_TX_OFFLOAD_MULTI_SEGS;
        dev_info->max_tx_queues = (uint16_t)internals->max_tx_queues;
        dev_info->min_rx_bufsize = 0;
 
@@ -226,7 +231,39 @@ static int
 eth_link_update(struct rte_eth_dev *dev __rte_unused,
                int wait_to_complete __rte_unused) { return 0; }
 
+static int
+eth_dev_close(struct rte_eth_dev *dev)
+{
+       struct pmd_internals *internals = NULL;
+       struct ring_queue *r = NULL;
+       uint16_t i;
+       int ret;
+
+       if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+               return 0;
+
+       ret = eth_dev_stop(dev);
+
+       internals = dev->data->dev_private;
+       if (internals->action == DEV_CREATE) {
+               /*
+                * it is only necessary to delete the rings in rx_queues because
+                * they are the same used in tx_queues
+                */
+               for (i = 0; i < dev->data->nb_rx_queues; i++) {
+                       r = dev->data->rx_queues[i];
+                       rte_ring_free(r->rng);
+               }
+       }
+
+       /* mac_addrs must not be freed alone because part of dev_private */
+       dev->data->mac_addrs = NULL;
+
+       return ret;
+}
+
 static const struct eth_dev_ops ops = {
+       .dev_close = eth_dev_close,
        .dev_start = eth_dev_start,
        .dev_stop = eth_dev_stop,
        .dev_set_link_up = eth_dev_set_link_up,
@@ -246,6 +283,7 @@ static const struct eth_dev_ops ops = {
 
 static int
 do_eth_dev_ring_create(const char *name,
+               struct rte_vdev_device *vdev,
                struct rte_ring * const rx_queues[],
                const unsigned int nb_rx_queues,
                struct rte_ring *const tx_queues[],
@@ -291,12 +329,15 @@ do_eth_dev_ring_create(const char *name,
        }
 
        /* now put it all together
+        * - store EAL device in eth_dev,
         * - store queue data in internals,
         * - store numa_node info in eth_dev_data
         * - point eth_dev_data to internals
         * - and point eth_dev structure to new eth_dev_data structure
         */
 
+       eth_dev->device = &vdev->device;
+
        data = eth_dev->data;
        data->rx_queues = rx_queues_local;
        data->tx_queues = tx_queues_local;
@@ -320,9 +361,9 @@ do_eth_dev_ring_create(const char *name,
        data->mac_addrs = &internals->address;
        data->promiscuous = 1;
        data->all_multicast = 1;
+       data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
 
        eth_dev->dev_ops = &ops;
-       data->kdrv = RTE_KDRV_NONE;
        data->numa_node = numa_node;
 
        /* finally assign rx and tx ops */
@@ -408,7 +449,9 @@ rte_eth_from_ring(struct rte_ring *r)
 }
 
 static int
-eth_dev_ring_create(const char *name, const unsigned int numa_node,
+eth_dev_ring_create(const char *name,
+               struct rte_vdev_device *vdev,
+               const unsigned int numa_node,
                enum dev_action action, struct rte_eth_dev **eth_dev)
 {
        /* rx and tx are so-called from point of view of first port.
@@ -438,7 +481,7 @@ eth_dev_ring_create(const char *name, const unsigned int numa_node,
                        return -1;
        }
 
-       if (do_eth_dev_ring_create(name, rxtx, num_rings, rxtx, num_rings,
+       if (do_eth_dev_ring_create(name, vdev, rxtx, num_rings, rxtx, num_rings,
                numa_node, action, eth_dev) < 0)
                return -1;
 
@@ -533,8 +576,21 @@ parse_internal_args(const char *key __rte_unused, const char *value,
 {
        struct ring_internal_args **internal_args = data;
        void *args;
+       int ret, n;
+
+       /* make sure 'value' is valid pointer length */
+       if (strnlen(value, ETH_RING_INTERNAL_ARG_MAX_LEN) >=
+                       ETH_RING_INTERNAL_ARG_MAX_LEN) {
+               PMD_LOG(ERR, "Error parsing internal args, argument is too long");
+               return -1;
+       }
 
-       sscanf(value, "%p", &args);
+       ret = sscanf(value, "%p%n", &args, &n);
+       if (ret == 0 || (size_t)n != strlen(value)) {
+               PMD_LOG(ERR, "Error parsing internal args");
+
+               return -1;
+       }
 
        *internal_args = args;
 
@@ -560,12 +616,12 @@ rte_pmd_ring_probe(struct rte_vdev_device *dev)
        PMD_LOG(INFO, "Initializing pmd_ring for %s", name);
 
        if (params == NULL || params[0] == '\0') {
-               ret = eth_dev_ring_create(name, rte_socket_id(), DEV_CREATE,
+               ret = eth_dev_ring_create(name, dev, rte_socket_id(), DEV_CREATE,
                                &eth_dev);
                if (ret == -1) {
                        PMD_LOG(INFO,
                                "Attach to pmd_ring for %s", name);
-                       ret = eth_dev_ring_create(name, rte_socket_id(),
+                       ret = eth_dev_ring_create(name, dev, rte_socket_id(),
                                                  DEV_ATTACH, &eth_dev);
                }
        } else {
@@ -574,19 +630,16 @@ rte_pmd_ring_probe(struct rte_vdev_device *dev)
                if (!kvlist) {
                        PMD_LOG(INFO,
                                "Ignoring unsupported parameters when creatingrings-backed ethernet device");
-                       ret = eth_dev_ring_create(name, rte_socket_id(),
+                       ret = eth_dev_ring_create(name, dev, rte_socket_id(),
                                                  DEV_CREATE, &eth_dev);
                        if (ret == -1) {
                                PMD_LOG(INFO,
                                        "Attach to pmd_ring for %s",
                                        name);
-                               ret = eth_dev_ring_create(name, rte_socket_id(),
+                               ret = eth_dev_ring_create(name, dev, rte_socket_id(),
                                                          DEV_ATTACH, &eth_dev);
                        }
 
-                       if (eth_dev)
-                               eth_dev->device = &dev->device;
-
                        return ret;
                }
 
@@ -597,7 +650,7 @@ rte_pmd_ring_probe(struct rte_vdev_device *dev)
                        if (ret < 0)
                                goto out_free;
 
-                       ret = do_eth_dev_ring_create(name,
+                       ret = do_eth_dev_ring_create(name, dev,
                                internal_args->rx_queues,
                                internal_args->nb_rx_queues,
                                internal_args->tx_queues,
@@ -627,6 +680,7 @@ rte_pmd_ring_probe(struct rte_vdev_device *dev)
 
                        for (info->count = 0; info->count < info->total; info->count++) {
                                ret = eth_dev_ring_create(info->list[info->count].name,
+                                                         dev,
                                                          info->list[info->count].node,
                                                          info->list[info->count].action,
                                                          &eth_dev);
@@ -635,7 +689,7 @@ rte_pmd_ring_probe(struct rte_vdev_device *dev)
                                        PMD_LOG(INFO,
                                                "Attach to pmd_ring for %s",
                                                name);
-                                       ret = eth_dev_ring_create(name,
+                                       ret = eth_dev_ring_create(name, dev,
                                                        info->list[info->count].node,
                                                        DEV_ATTACH,
                                                        &eth_dev);
@@ -644,9 +698,6 @@ rte_pmd_ring_probe(struct rte_vdev_device *dev)
                }
        }
 
-       if (eth_dev)
-               eth_dev->device = &dev->device;
-
 out_free:
        rte_kvargs_free(kvlist);
        rte_free(info);
@@ -658,9 +709,6 @@ rte_pmd_ring_remove(struct rte_vdev_device *dev)
 {
        const char *name = rte_vdev_device_name(dev);
        struct rte_eth_dev *eth_dev = NULL;
-       struct pmd_internals *internals = NULL;
-       struct ring_queue *r = NULL;
-       uint16_t i;
 
        PMD_LOG(INFO, "Un-Initializing pmd_ring for %s", name);
 
@@ -670,24 +718,9 @@ rte_pmd_ring_remove(struct rte_vdev_device *dev)
        /* find an ethdev entry */
        eth_dev = rte_eth_dev_allocated(name);
        if (eth_dev == NULL)
-               return -ENODEV;
-
-       eth_dev_stop(eth_dev);
+               return 0; /* port already released */
 
-       internals = eth_dev->data->dev_private;
-       if (internals->action == DEV_CREATE) {
-               /*
-                * it is only necessary to delete the rings in rx_queues because
-                * they are the same used in tx_queues
-                */
-               for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
-                       r = eth_dev->data->rx_queues[i];
-                       rte_ring_free(r->rng);
-               }
-       }
-
-       /* mac_addrs must not be freed alone because part of dev_private */
-       eth_dev->data->mac_addrs = NULL;
+       eth_dev_close(eth_dev);
        rte_eth_dev_release_port(eth_dev);
        return 0;
 }
@@ -701,10 +734,3 @@ RTE_PMD_REGISTER_VDEV(net_ring, pmd_ring_drv);
 RTE_PMD_REGISTER_ALIAS(net_ring, eth_ring);
 RTE_PMD_REGISTER_PARAM_STRING(net_ring,
        ETH_RING_NUMA_NODE_ACTION_ARG "=name:node:action(ATTACH|CREATE)");
-
-RTE_INIT(eth_ring_init_log)
-{
-       eth_ring_logtype = rte_log_register("pmd.net.ring");
-       if (eth_ring_logtype >= 0)
-               rte_log_set_level(eth_ring_logtype, RTE_LOG_NOTICE);
-}