+static int avp_dev_configure(struct rte_eth_dev *dev);
+static void avp_dev_info_get(struct rte_eth_dev *dev,
+ struct rte_eth_dev_info *dev_info);
+static void avp_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+static int avp_dev_link_update(struct rte_eth_dev *dev,
+ __rte_unused int wait_to_complete);
+
#define AVP_DEV_TO_PCI(eth_dev) RTE_DEV_TO_PCI((eth_dev)->device)
},
};
+/*
+ * dev_ops for avp, bare necessities for basic operation
+ */
+static const struct eth_dev_ops avp_eth_dev_ops = {
+ .dev_configure = avp_dev_configure,
+ .dev_infos_get = avp_dev_info_get,
+ .vlan_offload_set = avp_vlan_offload_set,
+ .link_update = avp_dev_link_update,
+};
/**@{ AVP device flags */
#define AVP_F_PROMISC (1 << 1)
uint64_t errors;
};
+/* send a request and wait for a response
+ *
+ * @warning must be called while holding the avp->lock spinlock.
+ */
+static int
+avp_dev_process_request(struct avp_dev *avp, struct rte_avp_request *request)
+{
+ unsigned int retry = AVP_MAX_REQUEST_RETRY;
+ void *resp_addr = NULL;
+ unsigned int count;
+ int ret;
+
+ PMD_DRV_LOG(DEBUG, "Sending request %u to host\n", request->req_id);
+
+ request->result = -ENOTSUP;
+
+ /* Discard any stale responses before starting a new request */
+ while (avp_fifo_get(avp->resp_q, (void **)&resp_addr, 1))
+ PMD_DRV_LOG(DEBUG, "Discarding stale response\n");
+
+ rte_memcpy(avp->sync_addr, request, sizeof(*request));
+ count = avp_fifo_put(avp->req_q, &avp->host_sync_addr, 1);
+ if (count < 1) {
+ PMD_DRV_LOG(ERR, "Cannot send request %u to host\n",
+ request->req_id);
+ ret = -EBUSY;
+ goto done;
+ }
+
+ while (retry--) {
+ /* wait for a response */
+ usleep(AVP_REQUEST_DELAY_USECS);
+
+ count = avp_fifo_count(avp->resp_q);
+ if (count >= 1) {
+ /* response received */
+ break;
+ }
+
+ if ((count < 1) && (retry == 0)) {
+ PMD_DRV_LOG(ERR, "Timeout while waiting for a response for %u\n",
+ request->req_id);
+ ret = -ETIME;
+ goto done;
+ }
+ }
+
+ /* retrieve the response */
+ count = avp_fifo_get(avp->resp_q, (void **)&resp_addr, 1);
+ if ((count != 1) || (resp_addr != avp->host_sync_addr)) {
+ PMD_DRV_LOG(ERR, "Invalid response from host, count=%u resp=%p host_sync_addr=%p\n",
+ count, resp_addr, avp->host_sync_addr);
+ ret = -ENODATA;
+ goto done;
+ }
+
+ /* copy to user buffer */
+ rte_memcpy(request, avp->sync_addr, sizeof(*request));
+ ret = 0;
+
+ PMD_DRV_LOG(DEBUG, "Result %d received for request %u\n",
+ request->result, request->req_id);
+
+done:
+ return ret;
+}
+
+static int
+avp_dev_ctrl_set_config(struct rte_eth_dev *eth_dev,
+ struct rte_avp_device_config *config)
+{
+ struct avp_dev *avp = AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+ struct rte_avp_request request;
+ int ret;
+
+ /* setup a configure request */
+ memset(&request, 0, sizeof(request));
+ request.req_id = RTE_AVP_REQ_CFG_DEVICE;
+ memcpy(&request.config, config, sizeof(request.config));
+
+ ret = avp_dev_process_request(avp, &request);
+
+ return ret == 0 ? request.result : ret;
+}
+
/* translate from host physical address to guest virtual address */
static void *
avp_dev_translate_address(struct rte_eth_dev *eth_dev,
return 0;
}
+static void
+_avp_set_queue_counts(struct rte_eth_dev *eth_dev)
+{
+ struct rte_pci_device *pci_dev = AVP_DEV_TO_PCI(eth_dev);
+ struct avp_dev *avp = AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+ struct rte_avp_device_info *host_info;
+ void *addr;
+
+ addr = pci_dev->mem_resource[RTE_AVP_PCI_DEVICE_BAR].addr;
+ host_info = (struct rte_avp_device_info *)addr;
+
+ /*
+ * the transmit direction is not negotiated beyond respecting the max
+ * number of queues because the host can handle arbitrary guest tx
+ * queues (host rx queues).
+ */
+ avp->num_tx_queues = eth_dev->data->nb_tx_queues;
+
+ /*
+ * the receive direction is more restrictive. The host requires a
+ * minimum number of guest rx queues (host tx queues) therefore
+ * negotiate a value that is at least as large as the host minimum
+ * requirement. If the host and guest values are not identical then a
+ * mapping will be established in the receive_queue_setup function.
+ */
+ avp->num_rx_queues = RTE_MAX(host_info->min_rx_queues,
+ eth_dev->data->nb_rx_queues);
+
+ PMD_DRV_LOG(DEBUG, "Requesting %u Tx and %u Rx queues from host\n",
+ avp->num_tx_queues, avp->num_rx_queues);
+}
+
/*
* create a AVP device using the supplied device info by first translating it
* to guest address space(s).
int ret;
pci_dev = AVP_DEV_TO_PCI(eth_dev);
+ eth_dev->dev_ops = &avp_eth_dev_ops;
if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
/*
.dev_private_size = sizeof(struct avp_adapter),
};
+static int
+avp_dev_configure(struct rte_eth_dev *eth_dev)
+{
+ struct rte_pci_device *pci_dev = AVP_DEV_TO_PCI(eth_dev);
+ struct avp_dev *avp = AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+ struct rte_avp_device_info *host_info;
+ struct rte_avp_device_config config;
+ int mask = 0;
+ void *addr;
+ int ret;
+
+ addr = pci_dev->mem_resource[RTE_AVP_PCI_DEVICE_BAR].addr;
+ host_info = (struct rte_avp_device_info *)addr;
+
+ /* Setup required number of queues */
+ _avp_set_queue_counts(eth_dev);
+
+ mask = (ETH_VLAN_STRIP_MASK |
+ ETH_VLAN_FILTER_MASK |
+ ETH_VLAN_EXTEND_MASK);
+ avp_vlan_offload_set(eth_dev, mask);
+
+ /* update device config */
+ memset(&config, 0, sizeof(config));
+ config.device_id = host_info->device_id;
+ config.driver_type = RTE_AVP_DRIVER_TYPE_DPDK;
+ config.driver_version = AVP_DPDK_DRIVER_VERSION;
+ config.features = avp->features;
+ config.num_tx_queues = avp->num_tx_queues;
+ config.num_rx_queues = avp->num_rx_queues;
+
+ ret = avp_dev_ctrl_set_config(eth_dev, &config);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Config request failed by host, ret=%d\n",
+ ret);
+ goto unlock;
+ }
+
+ avp->flags |= AVP_F_CONFIGURED;
+ ret = 0;
+
+unlock:
+ return ret;
+}
+
+
+static int
+avp_dev_link_update(struct rte_eth_dev *eth_dev,
+ __rte_unused int wait_to_complete)
+{
+ struct avp_dev *avp = AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+ struct rte_eth_link *link = ð_dev->data->dev_link;
+
+ link->link_speed = ETH_SPEED_NUM_10G;
+ link->link_duplex = ETH_LINK_FULL_DUPLEX;
+ link->link_status = !!(avp->flags & AVP_F_LINKUP);
+
+ return -1;
+}
+
+
+static void
+avp_dev_info_get(struct rte_eth_dev *eth_dev,
+ struct rte_eth_dev_info *dev_info)
+{
+ struct avp_dev *avp = AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+
+ dev_info->driver_name = "rte_avp_pmd";
+ dev_info->pci_dev = RTE_DEV_TO_PCI(eth_dev->device);
+ dev_info->max_rx_queues = avp->max_rx_queues;
+ dev_info->max_tx_queues = avp->max_tx_queues;
+ dev_info->min_rx_bufsize = AVP_MIN_RX_BUFSIZE;
+ dev_info->max_rx_pktlen = avp->max_rx_pkt_len;
+ dev_info->max_mac_addrs = AVP_MAX_MAC_ADDRS;
+ if (avp->host_features & RTE_AVP_FEATURE_VLAN_OFFLOAD) {
+ dev_info->rx_offload_capa = DEV_RX_OFFLOAD_VLAN_STRIP;
+ dev_info->tx_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT;
+ }
+}
+
+static void
+avp_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
+{
+ struct avp_dev *avp = AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+
+ if (mask & ETH_VLAN_STRIP_MASK) {
+ if (avp->host_features & RTE_AVP_FEATURE_VLAN_OFFLOAD) {
+ if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
+ avp->features |= RTE_AVP_FEATURE_VLAN_OFFLOAD;
+ else
+ avp->features &= ~RTE_AVP_FEATURE_VLAN_OFFLOAD;
+ } else {
+ PMD_DRV_LOG(ERR, "VLAN strip offload not supported\n");
+ }
+ }
+
+ if (mask & ETH_VLAN_FILTER_MASK) {
+ if (eth_dev->data->dev_conf.rxmode.hw_vlan_filter)
+ PMD_DRV_LOG(ERR, "VLAN filter offload not supported\n");
+ }
+
+ if (mask & ETH_VLAN_EXTEND_MASK) {
+ if (eth_dev->data->dev_conf.rxmode.hw_vlan_extend)
+ PMD_DRV_LOG(ERR, "VLAN extend offload not supported\n");
+ }
+}
+
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