1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright (c) 2009-2018 Microsoft Corp.
3 * Copyright (c) 2016 Brocade Communications Systems, Inc.
4 * Copyright (c) 2012 NetApp Inc.
5 * Copyright (c) 2012 Citrix Inc.
10 * Tunable ethdev params
12 #define HN_MIN_RX_BUF_SIZE 1024
13 #define HN_MAX_XFER_LEN 2048
14 #define HN_MAX_MAC_ADDRS 1
15 #define HN_MAX_CHANNELS 64
17 /* Claimed to be 12232B */
18 #define HN_MTU_MAX (9 * 1024)
21 #define HN_CHAN_INTERVAL_US 100
23 /* Host monitor interval */
24 #define HN_CHAN_LATENCY_NS 50000
26 /* Buffers need to be aligned */
28 #define PAGE_SIZE 4096
32 #define PAGE_MASK (PAGE_SIZE - 1)
45 /* Size bins in array as RFC 2819, undersized [0], 64 [1], etc */
46 uint64_t size_bins[8];
51 struct vmbus_channel *chan;
56 /* Applied packet transmission aggregation limits. */
61 /* Packet transmission aggregation states */
62 struct hn_txdesc *agg_txd;
65 struct rndis_packet_msg *agg_prevpkt;
67 struct hn_stats stats;
72 struct vmbus_channel *chan;
73 struct rte_mempool *mb_pool;
74 struct rte_ring *rx_ring;
76 rte_spinlock_t ring_lock;
80 struct hn_stats stats;
86 /* multi-packet data from host */
87 struct hn_rx_bufinfo {
88 struct vmbus_channel *chan;
91 struct rte_mbuf_ext_shared_info shinfo;
92 } __rte_cache_aligned;
95 struct rte_vmbus_device *vmbus;
96 struct hn_rx_queue *primary;
102 struct rte_mem_resource *rxbuf_res; /* UIO resource for Rx */
103 struct hn_rx_bufinfo *rxbuf_info;
104 uint32_t rxbuf_section_cnt; /* # of Rx sections */
105 volatile uint32_t rxbuf_outstanding;
106 uint16_t max_queues; /* Max available queues */
108 uint64_t rss_offloads;
110 struct rte_mem_resource *chim_res; /* UIO resource for Tx */
111 struct rte_mempool *tx_pool; /* Tx descriptors */
112 uint32_t chim_szmax; /* Max size per buffer */
113 uint32_t chim_cnt; /* Max packets per buffer */
118 uint32_t rndis_agg_size;
119 uint32_t rndis_agg_pkts;
120 uint32_t rndis_agg_align;
122 volatile uint32_t rndis_pending;
123 rte_atomic32_t rndis_req_id;
124 uint8_t rndis_resp[256];
126 struct ether_addr mac_addr;
127 struct vmbus_channel *channels[HN_MAX_CHANNELS];
130 static inline struct vmbus_channel *
131 hn_primary_chan(const struct hn_data *hv)
133 return hv->channels[0];
136 uint32_t hn_process_events(struct hn_data *hv, uint16_t queue_id,
139 uint16_t hn_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
141 uint16_t hn_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
144 int hn_tx_pool_init(struct rte_eth_dev *dev);
145 int hn_dev_link_update(struct rte_eth_dev *dev, int wait);
146 int hn_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
147 uint16_t nb_desc, unsigned int socket_id,
148 const struct rte_eth_txconf *tx_conf);
149 void hn_dev_tx_queue_release(void *arg);
150 void hn_dev_tx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx,
151 struct rte_eth_txq_info *qinfo);
152 int hn_dev_tx_done_cleanup(void *arg, uint32_t free_cnt);
154 struct hn_rx_queue *hn_rx_queue_alloc(struct hn_data *hv,
156 unsigned int socket_id);
157 int hn_dev_rx_queue_setup(struct rte_eth_dev *dev,
158 uint16_t queue_idx, uint16_t nb_desc,
159 unsigned int socket_id,
160 const struct rte_eth_rxconf *rx_conf,
161 struct rte_mempool *mp);
162 void hn_dev_rx_queue_release(void *arg);
163 void hn_dev_rx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx,
164 struct rte_eth_rxq_info *qinfo);