net: add rte prefix to ether structures
[dpdk.git] / drivers / net / kni / rte_eth_kni.c
index 8f90034..180cfd6 100644 (file)
@@ -1,53 +1,27 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2017 Intel Corporation. All rights reserved.
- *   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) 2017 Intel Corporation
  */
 
 #include <fcntl.h>
 #include <pthread.h>
 #include <unistd.h>
 
-#include <rte_ethdev.h>
+#include <rte_string_fns.h>
+#include <rte_ethdev_driver.h>
 #include <rte_ethdev_vdev.h>
 #include <rte_kni.h>
 #include <rte_kvargs.h>
 #include <rte_malloc.h>
-#include <rte_vdev.h>
+#include <rte_bus_vdev.h>
 
 /* Only single queue supported */
 #define KNI_MAX_QUEUE_PER_PORT 1
 
-#define MAX_PACKET_SZ 2048
 #define MAX_KNI_PORTS 8
 
+#define KNI_ETHER_MTU(mbuf_size)       \
+       ((mbuf_size) - ETHER_HDR_LEN) /**< Ethernet MTU. */
+
 #define ETH_KNI_NO_REQUEST_THREAD_ARG  "no_request_thread"
 static const char * const valid_arguments[] = {
        ETH_KNI_NO_REQUEST_THREAD_ARG,
@@ -80,7 +54,7 @@ struct pmd_internals {
        int stop_thread;
        int no_request_thread;
 
-       struct ether_addr eth_addr;
+       struct rte_ether_addr eth_addr;
 
        struct pmd_queue rx_queues[KNI_MAX_QUEUE_PER_PORT];
        struct pmd_queue tx_queues[KNI_MAX_QUEUE_PER_PORT];
@@ -90,10 +64,15 @@ static const 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_FIXED,
 };
 static int is_kni_initialized;
 
+static int eth_kni_logtype;
+
+#define PMD_LOG(level, fmt, args...) \
+       rte_log(RTE_LOG_ ## level, eth_kni_logtype, \
+               "%s(): " fmt "\n", __func__, ##args)
 static uint16_t
 eth_kni_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
 {
@@ -145,18 +124,20 @@ eth_kni_start(struct rte_eth_dev *dev)
        uint16_t port_id = dev->data->port_id;
        struct rte_mempool *mb_pool;
        struct rte_kni_conf conf;
-       const char *name = dev->data->name + 4; /* remove net_ */
+       const char *name = dev->device->name + 4; /* remove net_ */
 
-       snprintf(conf.name, RTE_KNI_NAMESIZE, "%s", name);
+       mb_pool = internals->rx_queues[0].mb_pool;
+       strlcpy(conf.name, name, RTE_KNI_NAMESIZE);
        conf.force_bind = 0;
        conf.group_id = port_id;
-       conf.mbuf_size = MAX_PACKET_SZ;
-       mb_pool = internals->rx_queues[0].mb_pool;
+       conf.mbuf_size =
+               rte_pktmbuf_data_room_size(mb_pool) - RTE_PKTMBUF_HEADROOM;
+       conf.mtu = KNI_ETHER_MTU(conf.mbuf_size);
 
        internals->kni = rte_kni_alloc(mb_pool, &conf, NULL);
        if (internals->kni == NULL) {
-               RTE_LOG(ERR, PMD,
-                       "Fail to create kni interface for port: %d\n",
+               PMD_LOG(ERR,
+                       "Fail to create kni interface for port: %d",
                        port_id);
                return -1;
        }
@@ -178,11 +159,12 @@ eth_kni_dev_start(struct rte_eth_dev *dev)
        }
 
        if (internals->no_request_thread == 0) {
-               ret = pthread_create(&internals->thread, NULL,
+               ret = rte_ctrl_thread_create(&internals->thread,
+                       "kni_handle_req", NULL,
                        kni_handle_request, internals);
                if (ret) {
-                       RTE_LOG(ERR, PMD,
-                               "Fail to create kni request thread\n");
+                       PMD_LOG(ERR,
+                               "Fail to create kni request thread");
                        return -1;
                }
        }
@@ -203,11 +185,11 @@ eth_kni_dev_stop(struct rte_eth_dev *dev)
 
                ret = pthread_cancel(internals->thread);
                if (ret)
-                       RTE_LOG(ERR, PMD, "Can't cancel the thread\n");
+                       PMD_LOG(ERR, "Can't cancel the thread");
 
                ret = pthread_join(internals->thread, NULL);
                if (ret)
-                       RTE_LOG(ERR, PMD, "Can't join the thread\n");
+                       PMD_LOG(ERR, "Can't join the thread");
 
                internals->stop_thread = 0;
        }
@@ -230,7 +212,6 @@ eth_kni_dev_info(struct rte_eth_dev *dev __rte_unused,
        dev_info->max_rx_queues = KNI_MAX_QUEUE_PER_PORT;
        dev_info->max_tx_queues = KNI_MAX_QUEUE_PER_PORT;
        dev_info->min_rx_bufsize = 0;
-       dev_info->pci_dev = NULL;
 }
 
 static int
@@ -283,7 +264,7 @@ eth_kni_link_update(struct rte_eth_dev *dev __rte_unused,
        return 0;
 }
 
-static void
+static int
 eth_kni_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 {
        unsigned long rx_packets_total = 0, rx_bytes_total = 0;
@@ -320,6 +301,8 @@ eth_kni_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
        stats->opackets = tx_packets_total;
        stats->obytes = tx_bytes_total;
        stats->oerrors = tx_packets_err_total;
+
+       return 0;
 }
 
 static void
@@ -356,8 +339,6 @@ static const struct eth_dev_ops eth_kni_ops = {
        .stats_reset = eth_kni_stats_reset,
 };
 
-static struct rte_vdev_driver eth_kni_drv;
-
 static struct rte_eth_dev *
 eth_kni_create(struct rte_vdev_device *vdev,
                struct eth_kni_args *args,
@@ -366,25 +347,17 @@ eth_kni_create(struct rte_vdev_device *vdev,
        struct pmd_internals *internals;
        struct rte_eth_dev_data *data;
        struct rte_eth_dev *eth_dev;
-       const char *name;
 
-       RTE_LOG(INFO, PMD, "Creating kni ethdev on numa socket %u\n",
+       PMD_LOG(INFO, "Creating kni ethdev on numa socket %u",
                        numa_node);
 
-       name = rte_vdev_device_name(vdev);
-       data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node);
-       if (data == NULL)
-               return NULL;
-
        /* reserve an ethdev entry */
        eth_dev = rte_eth_vdev_allocate(vdev, sizeof(*internals));
-       if (eth_dev == NULL) {
-               rte_free(data);
+       if (!eth_dev)
                return NULL;
-       }
 
        internals = eth_dev->data->dev_private;
-       rte_memcpy(data, eth_dev->data, sizeof(*data));
+       data = eth_dev->data;
        data->nb_rx_queues = 1;
        data->nb_tx_queues = 1;
        data->dev_link = pmd_link;
@@ -392,11 +365,8 @@ eth_kni_create(struct rte_vdev_device *vdev,
 
        eth_random_addr(internals->eth_addr.addr_bytes);
 
-       eth_dev->data = data;
        eth_dev->dev_ops = &eth_kni_ops;
 
-       data->dev_flags = RTE_ETH_DEV_DETACHABLE;
-
        internals->no_request_thread = args->no_request_thread;
 
        return eth_dev;
@@ -443,7 +413,20 @@ eth_kni_probe(struct rte_vdev_device *vdev)
 
        name = rte_vdev_device_name(vdev);
        params = rte_vdev_device_args(vdev);
-       RTE_LOG(INFO, PMD, "Initializing eth_kni for %s\n", name);
+       PMD_LOG(INFO, "Initializing eth_kni for %s", name);
+
+       if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+               eth_dev = rte_eth_dev_attach_secondary(name);
+               if (!eth_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 = &eth_kni_ops;
+               eth_dev->device = &vdev->device;
+               rte_eth_dev_probing_finish(eth_dev);
+               return 0;
+       }
 
        ret = eth_kni_kvargs_process(&args, params);
        if (ret < 0)
@@ -460,6 +443,7 @@ eth_kni_probe(struct rte_vdev_device *vdev)
        eth_dev->rx_pkt_burst = eth_kni_rx;
        eth_dev->tx_pkt_burst = eth_kni_tx;
 
+       rte_eth_dev_probing_finish(eth_dev);
        return 0;
 
 kni_uninit:
@@ -475,24 +459,28 @@ eth_kni_remove(struct rte_vdev_device *vdev)
        struct rte_eth_dev *eth_dev;
        struct pmd_internals *internals;
        const char *name;
+       int ret;
 
        name = rte_vdev_device_name(vdev);
-       RTE_LOG(INFO, PMD, "Un-Initializing eth_kni for %s\n", name);
+       PMD_LOG(INFO, "Un-Initializing eth_kni for %s", name);
 
        /* find the ethdev entry */
        eth_dev = rte_eth_dev_allocated(name);
        if (eth_dev == NULL)
                return -1;
 
-       eth_kni_dev_stop(eth_dev);
+       /* mac_addrs must not be freed alone because part of dev_private */
+       eth_dev->data->mac_addrs = NULL;
 
-       if (eth_dev->data) {
-               internals = eth_dev->data->dev_private;
-               rte_kni_release(internals->kni);
+       if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+               return rte_eth_dev_release_port(eth_dev);
 
-               rte_free(internals);
-       }
-       rte_free(eth_dev->data);
+       eth_kni_dev_stop(eth_dev);
+
+       internals = eth_dev->data->dev_private;
+       ret = rte_kni_release(internals->kni);
+       if (ret)
+               PMD_LOG(WARNING, "Not able to release kni for %s", name);
 
        rte_eth_dev_release_port(eth_dev);
 
@@ -510,3 +498,10 @@ static struct rte_vdev_driver eth_kni_drv = {
 
 RTE_PMD_REGISTER_VDEV(net_kni, eth_kni_drv);
 RTE_PMD_REGISTER_PARAM_STRING(net_kni, ETH_KNI_NO_REQUEST_THREAD_ARG "=<int>");
+
+RTE_INIT(eth_kni_init_log)
+{
+       eth_kni_logtype = rte_log_register("pmd.net.kni");
+       if (eth_kni_logtype >= 0)
+               rte_log_set_level(eth_kni_logtype, RTE_LOG_NOTICE);
+}