--- /dev/null
+/*
+ * BSD LICENSE
+ *
+ * Copyright (c) 2013-2017, Wind River Systems, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1) Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2) 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.
+ *
+ * 3) Neither the name of Wind River Systems 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 HOLDER 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.
+ */
+
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include <rte_ethdev.h>
+#include <rte_memcpy.h>
+#include <rte_string_fns.h>
+#include <rte_memzone.h>
+#include <rte_malloc.h>
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+#include <rte_pci.h>
+#include <rte_ether.h>
+#include <rte_common.h>
+#include <rte_cycles.h>
+#include <rte_byteorder.h>
+#include <rte_dev.h>
+#include <rte_memory.h>
+#include <rte_eal.h>
+
+#include "rte_avp_common.h"
+#include "rte_avp_fifo.h"
+
+#include "avp_logs.h"
+
+
+
+#define AVP_DEV_TO_PCI(eth_dev) RTE_DEV_TO_PCI((eth_dev)->device)
+
+
+#define AVP_MAX_MAC_ADDRS 1
+#define AVP_MIN_RX_BUFSIZE ETHER_MIN_LEN
+
+
+/*
+ * Defines the number of microseconds to wait before checking the response
+ * queue for completion.
+ */
+#define AVP_REQUEST_DELAY_USECS (5000)
+
+/*
+ * Defines the number times to check the response queue for completion before
+ * declaring a timeout.
+ */
+#define AVP_MAX_REQUEST_RETRY (100)
+
+/* Defines the current PCI driver version number */
+#define AVP_DPDK_DRIVER_VERSION RTE_AVP_CURRENT_GUEST_VERSION
+
+/*
+ * The set of PCI devices this driver supports
+ */
+static const struct rte_pci_id pci_id_avp_map[] = {
+ { .vendor_id = RTE_AVP_PCI_VENDOR_ID,
+ .device_id = RTE_AVP_PCI_DEVICE_ID,
+ .subsystem_vendor_id = RTE_AVP_PCI_SUB_VENDOR_ID,
+ .subsystem_device_id = RTE_AVP_PCI_SUB_DEVICE_ID,
+ .class_id = RTE_CLASS_ANY_ID,
+ },
+
+ { .vendor_id = 0, /* sentinel */
+ },
+};
+
+
+/*
+ * Defines the AVP device attributes which are attached to an RTE ethernet
+ * device
+ */
+struct avp_dev {
+ uint32_t magic; /**< Memory validation marker */
+ uint64_t device_id; /**< Unique system identifier */
+ struct ether_addr ethaddr; /**< Host specified MAC address */
+ struct rte_eth_dev_data *dev_data;
+ /**< Back pointer to ethernet device data */
+ volatile uint32_t flags; /**< Device operational flags */
+ uint8_t port_id; /**< Ethernet port identifier */
+ struct rte_mempool *pool; /**< pkt mbuf mempool */
+ unsigned int guest_mbuf_size; /**< local pool mbuf size */
+ unsigned int host_mbuf_size; /**< host mbuf size */
+ unsigned int max_rx_pkt_len; /**< maximum receive unit */
+ uint32_t host_features; /**< Supported feature bitmap */
+ uint32_t features; /**< Enabled feature bitmap */
+ unsigned int num_tx_queues; /**< Negotiated number of transmit queues */
+ unsigned int max_tx_queues; /**< Maximum number of transmit queues */
+ unsigned int num_rx_queues; /**< Negotiated number of receive queues */
+ unsigned int max_rx_queues; /**< Maximum number of receive queues */
+
+ struct rte_avp_fifo *tx_q[RTE_AVP_MAX_QUEUES]; /**< TX queue */
+ struct rte_avp_fifo *rx_q[RTE_AVP_MAX_QUEUES]; /**< RX queue */
+ struct rte_avp_fifo *alloc_q[RTE_AVP_MAX_QUEUES];
+ /**< Allocated mbufs queue */
+ struct rte_avp_fifo *free_q[RTE_AVP_MAX_QUEUES];
+ /**< To be freed mbufs queue */
+
+ /* For request & response */
+ struct rte_avp_fifo *req_q; /**< Request queue */
+ struct rte_avp_fifo *resp_q; /**< Response queue */
+ void *host_sync_addr; /**< (host) Req/Resp Mem address */
+ void *sync_addr; /**< Req/Resp Mem address */
+ void *host_mbuf_addr; /**< (host) MBUF pool start address */
+ void *mbuf_addr; /**< MBUF pool start address */
+} __rte_cache_aligned;
+
+/* RTE ethernet private data */
+struct avp_adapter {
+ struct avp_dev avp;
+} __rte_cache_aligned;
+
+/* Macro to cast the ethernet device private data to a AVP object */
+#define AVP_DEV_PRIVATE_TO_HW(adapter) \
+ (&((struct avp_adapter *)adapter)->avp)
+
+/*
+ * This function is based on probe() function in avp_pci.c
+ * It returns 0 on success.
+ */
+static int
+eth_avp_dev_init(struct rte_eth_dev *eth_dev)
+{
+ struct rte_pci_device *pci_dev;
+
+ pci_dev = AVP_DEV_TO_PCI(eth_dev);
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+ /*
+ * no setup required on secondary processes. All data is saved
+ * in dev_private by the primary process. All resource should
+ * be mapped to the same virtual address so all pointers should
+ * be valid.
+ */
+ return 0;
+ }
+
+ rte_eth_copy_pci_info(eth_dev, pci_dev);
+
+ eth_dev->data->dev_flags |= RTE_ETH_DEV_DETACHABLE;
+
+ return 0;
+}
+
+static int
+eth_avp_dev_uninit(struct rte_eth_dev *eth_dev)
+{
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return -EPERM;
+
+ if (eth_dev->data == NULL)
+ return 0;
+
+ return 0;
+}
+
+
+static struct eth_driver rte_avp_pmd = {
+ {
+ .id_table = pci_id_avp_map,
+ .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
+ .probe = rte_eth_dev_pci_probe,
+ .remove = rte_eth_dev_pci_remove,
+ },
+ .eth_dev_init = eth_avp_dev_init,
+ .eth_dev_uninit = eth_avp_dev_uninit,
+ .dev_private_size = sizeof(struct avp_adapter),
+};
+
+RTE_PMD_REGISTER_PCI(net_avp, rte_avp_pmd.pci_drv);
+RTE_PMD_REGISTER_PCI_TABLE(net_avp, pci_id_avp_map);
git.droids-corp.org / dpdk.git / commitdiff