diff options
Diffstat (limited to 'drivers/net/netvsc/hn_var.h')
| -rw-r--r-- | drivers/net/netvsc/hn_var.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/drivers/net/netvsc/hn_var.h b/drivers/net/netvsc/hn_var.h new file mode 100644 index 00000000..f7ff8585 --- /dev/null +++ b/drivers/net/netvsc/hn_var.h @@ -0,0 +1,158 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright (c) 2009-2018 Microsoft Corp. + * Copyright (c) 2016 Brocade Communications Systems, Inc. + * Copyright (c) 2012 NetApp Inc. + * Copyright (c) 2012 Citrix Inc. + * All rights reserved. + */ + +/* + * Tunable ethdev params + */ +#define HN_MIN_RX_BUF_SIZE 1024 +#define HN_MAX_XFER_LEN 2048 +#define HN_MAX_MAC_ADDRS 1 +#define HN_MAX_CHANNELS 64 + +/* Claimed to be 12232B */ +#define HN_MTU_MAX (9 * 1024) + +/* Retry interval */ +#define HN_CHAN_INTERVAL_US 100 + +/* Buffers need to be aligned */ +#ifndef PAGE_SIZE +#define PAGE_SIZE 4096 +#endif + +#ifndef PAGE_MASK +#define PAGE_MASK (PAGE_SIZE - 1) +#endif + +struct hn_data; +struct hn_txdesc; + +struct hn_stats { + uint64_t packets; + uint64_t bytes; + uint64_t errors; + uint64_t nomemory; + uint64_t multicast; + uint64_t broadcast; + /* Size bins in array as RFC 2819, undersized [0], 64 [1], etc */ + uint64_t size_bins[8]; +}; + +struct hn_tx_queue { + struct hn_data *hv; + struct vmbus_channel *chan; + uint16_t port_id; + uint16_t queue_id; + uint32_t free_thresh; + + /* Applied packet transmission aggregation limits. */ + uint32_t agg_szmax; + uint32_t agg_pktmax; + uint32_t agg_align; + + /* Packet transmission aggregation states */ + struct hn_txdesc *agg_txd; + uint32_t agg_pktleft; + uint32_t agg_szleft; + struct rndis_packet_msg *agg_prevpkt; + + struct hn_stats stats; +}; + +struct hn_rx_queue { + struct hn_data *hv; + struct vmbus_channel *chan; + struct rte_mempool *mb_pool; + struct rte_ring *rx_ring; + + rte_spinlock_t ring_lock; + uint32_t event_sz; + uint16_t port_id; + uint16_t queue_id; + struct hn_stats stats; + uint64_t ring_full; + + uint8_t event_buf[]; +}; + + +/* multi-packet data from host */ +struct hn_rx_bufinfo { + struct vmbus_channel *chan; + struct hn_data *hv; + uint64_t xactid; + struct rte_mbuf_ext_shared_info shinfo; +} __rte_cache_aligned; + +struct hn_data { + struct rte_vmbus_device *vmbus; + struct hn_rx_queue *primary; + uint16_t port_id; + bool closed; + uint32_t link_status; + uint32_t link_speed; + + struct rte_mem_resource *rxbuf_res; /* UIO resource for Rx */ + struct hn_rx_bufinfo *rxbuf_info; + uint32_t rxbuf_section_cnt; /* # of Rx sections */ + volatile uint32_t rxbuf_outstanding; + uint16_t max_queues; /* Max available queues */ + uint16_t num_queues; + uint64_t rss_offloads; + + struct rte_mem_resource *chim_res; /* UIO resource for Tx */ + struct rte_mempool *tx_pool; /* Tx descriptors */ + uint32_t chim_szmax; /* Max size per buffer */ + uint32_t chim_cnt; /* Max packets per buffer */ + + uint32_t nvs_ver; + uint32_t ndis_ver; + uint32_t rndis_agg_size; + uint32_t rndis_agg_pkts; + uint32_t rndis_agg_align; + + volatile uint32_t rndis_pending; + rte_atomic32_t rndis_req_id; + uint8_t rndis_resp[256]; + + struct ether_addr mac_addr; + struct vmbus_channel *channels[HN_MAX_CHANNELS]; +}; + +static inline struct vmbus_channel * +hn_primary_chan(const struct hn_data *hv) +{ + return hv->channels[0]; +} + +void hn_process_events(struct hn_data *hv, uint16_t queue_id); + +uint16_t hn_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts); +uint16_t hn_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, + uint16_t nb_pkts); + +int hn_tx_pool_init(struct rte_eth_dev *dev); +int hn_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx, + uint16_t nb_desc, unsigned int socket_id, + const struct rte_eth_txconf *tx_conf); +void hn_dev_tx_queue_release(void *arg); +void hn_dev_tx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx, + struct rte_eth_txq_info *qinfo); + +struct hn_rx_queue *hn_rx_queue_alloc(struct hn_data *hv, + uint16_t queue_id, + unsigned int socket_id); +int hn_dev_rx_queue_setup(struct rte_eth_dev *dev, + uint16_t queue_idx, uint16_t nb_desc, + unsigned int socket_id, + const struct rte_eth_rxconf *rx_conf, + struct rte_mempool *mp); +void hn_dev_rx_queue_release(void *arg); +void hn_dev_rx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx, + struct rte_eth_rxq_info *qinfo); |