ceph/src/spdk/dpdk/drivers/net/netvsc/hn_var.h

   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.
   6  * All rights reserved.
   7  */
   8
   9 /*
  10  * Tunable ethdev params
  11  */
  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
  16
  17 /* Claimed to be 12232B */
  18 #define HN_MTU_MAX              (9 * 1024)
  19
  20 /* Retry interval */
  21 #define HN_CHAN_INTERVAL_US     100
  22
  23 /* Buffers need to be aligned */
  24 #ifndef PAGE_SIZE
  25 #define PAGE_SIZE 4096
  26 #endif
  27
  28 #ifndef PAGE_MASK
  29 #define PAGE_MASK (PAGE_SIZE - 1)
  30 #endif
  31
  32 struct hn_data;
  33 struct hn_txdesc;
  34
  35 struct hn_stats {
  36         uint64_t        packets;
  37         uint64_t        bytes;
  38         uint64_t        errors;
  39         uint64_t        nomemory;
  40         uint64_t        multicast;
  41         uint64_t        broadcast;
  42         /* Size bins in array as RFC 2819, undersized [0], 64 [1], etc */
  43         uint64_t        size_bins[8];
  44 };
  45
  46 struct hn_tx_queue {
  47         struct hn_data  *hv;
  48         struct vmbus_channel *chan;
  49         uint16_t        port_id;
  50         uint16_t        queue_id;
  51         uint32_t        free_thresh;
  52
  53         /* Applied packet transmission aggregation limits. */
  54         uint32_t        agg_szmax;
  55         uint32_t        agg_pktmax;
  56         uint32_t        agg_align;
  57
  58         /* Packet transmission aggregation states */
  59         struct hn_txdesc *agg_txd;
  60         uint32_t        agg_pktleft;
  61         uint32_t        agg_szleft;
  62         struct rndis_packet_msg *agg_prevpkt;
  63
  64         struct hn_stats stats;
  65 };
  66
  67 struct hn_rx_queue {
  68         struct hn_data  *hv;
  69         struct vmbus_channel *chan;
  70         struct rte_mempool *mb_pool;
  71         struct rte_ring *rx_ring;
  72
  73         rte_spinlock_t ring_lock;
  74         uint32_t event_sz;
  75         uint16_t port_id;
  76         uint16_t queue_id;
  77         struct hn_stats stats;
  78         uint64_t ring_full;
  79
  80         uint8_t event_buf[];
  81 };
  82
  83
  84 /* multi-packet data from host */
  85 struct hn_rx_bufinfo {
  86         struct vmbus_channel *chan;
  87         struct hn_data *hv;
  88         uint64_t        xactid;
  89         struct rte_mbuf_ext_shared_info shinfo;
  90 } __rte_cache_aligned;
  91
  92 struct hn_data {
  93         struct rte_vmbus_device *vmbus;
  94         struct hn_rx_queue *primary;
  95         uint16_t        port_id;
  96         bool            closed;
  97         uint32_t        link_status;
  98         uint32_t        link_speed;
  99
 100         struct rte_mem_resource *rxbuf_res;     /* UIO resource for Rx */
 101         struct hn_rx_bufinfo *rxbuf_info;
 102         uint32_t        rxbuf_section_cnt;      /* # of Rx sections */
 103         volatile uint32_t rxbuf_outstanding;
 104         uint16_t        max_queues;             /* Max available queues */
 105         uint16_t        num_queues;
 106         uint64_t        rss_offloads;
 107
 108         struct rte_mem_resource *chim_res;      /* UIO resource for Tx */
 109         struct rte_mempool *tx_pool;            /* Tx descriptors */
 110         uint32_t        chim_szmax;             /* Max size per buffer */
 111         uint32_t        chim_cnt;               /* Max packets per buffer */
 112
 113         uint32_t        nvs_ver;
 114         uint32_t        ndis_ver;
 115         uint32_t        rndis_agg_size;
 116         uint32_t        rndis_agg_pkts;
 117         uint32_t        rndis_agg_align;
 118
 119         volatile uint32_t  rndis_pending;
 120         rte_atomic32_t  rndis_req_id;
 121         uint8_t         rndis_resp[256];
 122
 123         struct ether_addr mac_addr;
 124         struct vmbus_channel *channels[HN_MAX_CHANNELS];
 125 };
 126
 127 static inline struct vmbus_channel *
 128 hn_primary_chan(const struct hn_data *hv)
 129 {
 130         return hv->channels[0];
 131 }
 132
 133 void hn_process_events(struct hn_data *hv, uint16_t queue_id);
 134
 135 uint16_t hn_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 136                       uint16_t nb_pkts);
 137 uint16_t hn_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 138                       uint16_t nb_pkts);
 139
 140 int     hn_tx_pool_init(struct rte_eth_dev *dev);
 141 int     hn_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 142                               uint16_t nb_desc, unsigned int socket_id,
 143                               const struct rte_eth_txconf *tx_conf);
 144 void    hn_dev_tx_queue_release(void *arg);
 145 void    hn_dev_tx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx,
 146                              struct rte_eth_txq_info *qinfo);
 147
 148 struct hn_rx_queue *hn_rx_queue_alloc(struct hn_data *hv,
 149                                       uint16_t queue_id,
 150                                       unsigned int socket_id);
 151 int     hn_dev_rx_queue_setup(struct rte_eth_dev *dev,
 152                               uint16_t queue_idx, uint16_t nb_desc,
 153                               unsigned int socket_id,
 154                               const struct rte_eth_rxconf *rx_conf,
 155                               struct rte_mempool *mp);
 156 void    hn_dev_rx_queue_release(void *arg);
 157 void    hn_dev_rx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx,
 158                              struct rte_eth_rxq_info *qinfo);