4e9c73e96e
The driver supports Hyper-V networking directly like virtio for KVM or vmxnet3 for VMware. This code is based off of the FreeBSD driver. The file and variable names are kept the same to help with understanding (with most of the BSD style warts removed). This version supports the latest NetVSP 6.1 version and older versions. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
154 lines
3.7 KiB
C
154 lines
3.7 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (c) 2009-2018 Microsoft Corp.
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* Copyright (c) 2016 Brocade Communications Systems, Inc.
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* Copyright (c) 2012 NetApp Inc.
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* Copyright (c) 2012 Citrix Inc.
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* All rights reserved.
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*/
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/*
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* Tunable ethdev params
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*/
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#define HN_MIN_RX_BUF_SIZE 1024
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#define HN_MAX_XFER_LEN 2048
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#define HN_MAX_MAC_ADDRS 1
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#define HN_MAX_CHANNELS 64
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/* Claimed to be 12232B */
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#define HN_MTU_MAX (9 * 1024)
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/* Retry interval */
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#define HN_CHAN_INTERVAL_US 100
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/* Buffers need to be aligned */
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#ifndef PAGE_SIZE
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#define PAGE_SIZE 4096
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#endif
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#ifndef PAGE_MASK
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#define PAGE_MASK (PAGE_SIZE - 1)
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#endif
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struct hn_data;
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struct hn_txdesc;
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struct hn_stats {
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uint64_t packets;
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uint64_t bytes;
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uint64_t errors;
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uint64_t nomemory;
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uint64_t multicast;
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uint64_t broadcast;
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/* Size bins in array as RFC 2819, undersized [0], 64 [1], etc */
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uint64_t size_bins[8];
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};
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struct hn_tx_queue {
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struct hn_data *hv;
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struct vmbus_channel *chan;
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uint16_t port_id;
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uint16_t queue_id;
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uint32_t free_thresh;
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/* Applied packet transmission aggregation limits. */
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uint32_t agg_szmax;
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uint32_t agg_pktmax;
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uint32_t agg_align;
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/* Packet transmission aggregation states */
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struct hn_txdesc *agg_txd;
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uint32_t agg_pktleft;
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uint32_t agg_szleft;
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struct rndis_packet_msg *agg_prevpkt;
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struct hn_stats stats;
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};
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struct hn_rx_queue {
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struct hn_data *hv;
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struct vmbus_channel *chan;
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struct rte_mempool *mb_pool;
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struct rte_ring *rx_ring;
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void *event_buf;
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rte_spinlock_t ring_lock;
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uint32_t event_sz;
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uint16_t port_id;
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uint16_t queue_id;
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struct hn_stats stats;
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uint64_t ring_full;
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};
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/* multi-packet data from host */
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struct hn_rx_bufinfo {
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struct vmbus_channel *chan;
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struct hn_data *hv;
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uint64_t xactid;
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struct rte_mbuf_ext_shared_info shinfo;
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} __rte_cache_aligned;
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struct hn_data {
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struct rte_vmbus_device *vmbus;
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struct hn_rx_queue *primary;
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uint16_t port_id;
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bool closed;
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uint32_t link_status;
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uint32_t link_speed;
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struct rte_mem_resource *rxbuf_res; /* UIO resource for Rx */
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struct hn_rx_bufinfo *rxbuf_info;
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uint32_t rxbuf_section_cnt; /* # of Rx sections */
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volatile uint32_t rxbuf_outstanding;
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uint16_t max_queues; /* Max available queues */
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uint16_t num_queues;
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uint64_t rss_offloads;
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struct rte_mem_resource *chim_res; /* UIO resource for Tx */
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struct rte_mempool *tx_pool; /* Tx descriptors */
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uint32_t chim_szmax; /* Max size per buffer */
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uint32_t chim_cnt; /* Max packets per buffer */
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uint32_t nvs_ver;
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uint32_t ndis_ver;
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uint32_t rndis_agg_size;
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uint32_t rndis_agg_pkts;
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uint32_t rndis_agg_align;
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volatile uint32_t rndis_pending;
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rte_atomic32_t rndis_req_id;
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uint8_t rndis_resp[256];
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struct ether_addr mac_addr;
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struct vmbus_channel *channels[HN_MAX_CHANNELS];
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};
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static inline struct vmbus_channel *
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hn_primary_chan(const struct hn_data *hv)
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{
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return hv->channels[0];
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}
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void hn_process_events(struct hn_data *hv, uint16_t queue_id);
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uint16_t hn_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
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uint16_t nb_pkts);
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uint16_t hn_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
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uint16_t nb_pkts);
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int hn_tx_pool_init(struct rte_eth_dev *dev);
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int hn_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
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uint16_t nb_desc, unsigned int socket_id,
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const struct rte_eth_txconf *tx_conf);
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void hn_dev_tx_queue_release(void *arg);
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struct hn_rx_queue *hn_rx_queue_alloc(struct hn_data *hv,
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uint16_t queue_id,
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unsigned int socket_id);
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int hn_dev_rx_queue_setup(struct rte_eth_dev *dev,
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uint16_t queue_idx, uint16_t nb_desc,
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unsigned int socket_id,
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const struct rte_eth_rxconf *rx_conf,
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struct rte_mempool *mp);
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void hn_dev_rx_queue_release(void *arg);
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