ceph/src/seastar/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 /* Host monitor interval */
  24 #define HN_CHAN_LATENCY_NS      50000
  25
  26 /* Buffers need to be aligned */
  27 #ifndef PAGE_SIZE
  28 #define PAGE_SIZE 4096
  29 #endif
  30
  31 #ifndef PAGE_MASK
  32 #define PAGE_MASK (PAGE_SIZE - 1)
  33 #endif
  34
  35 struct hn_data;
  36 struct hn_txdesc;
  37
  38 struct hn_stats {
  39         uint64_t        packets;
  40         uint64_t        bytes;
  41         uint64_t        errors;
  42         uint64_t        ring_full;
  43         uint64_t        multicast;
  44         uint64_t        broadcast;
  45         /* Size bins in array as RFC 2819, undersized [0], 64 [1], etc */
  46         uint64_t        size_bins[8];
  47 };
  48
  49 struct hn_tx_queue {
  50         struct hn_data  *hv;
  51         struct vmbus_channel *chan;
  52         uint16_t        port_id;
  53         uint16_t        queue_id;
  54         uint32_t        free_thresh;
  55
  56         /* Applied packet transmission aggregation limits. */
  57         uint32_t        agg_szmax;
  58         uint32_t        agg_pktmax;
  59         uint32_t        agg_align;
  60
  61         /* Packet transmission aggregation states */
  62         struct hn_txdesc *agg_txd;
  63         uint32_t        agg_pktleft;
  64         uint32_t        agg_szleft;
  65         struct rndis_packet_msg *agg_prevpkt;
  66
  67         struct hn_stats stats;
  68 };
  69
  70 struct hn_rx_queue {
  71         struct hn_data  *hv;
  72         struct vmbus_channel *chan;
  73         struct rte_mempool *mb_pool;
  74         struct rte_ring *rx_ring;
  75
  76         rte_spinlock_t ring_lock;
  77         uint32_t event_sz;
  78         uint16_t port_id;
  79         uint16_t queue_id;
  80         struct hn_stats stats;
  81
  82         void *event_buf;
  83 };
  84
  85
  86 /* multi-packet data from host */
  87 struct hn_rx_bufinfo {
  88         struct vmbus_channel *chan;
  89         struct hn_data *hv;
  90         uint64_t        xactid;
  91         struct rte_mbuf_ext_shared_info shinfo;
  92 } __rte_cache_aligned;
  93
  94 #define HN_INVALID_PORT UINT16_MAX
  95
  96 struct hn_data {
  97         struct rte_vmbus_device *vmbus;
  98         struct hn_rx_queue *primary;
  99         rte_spinlock_t  vf_lock;
 100         uint16_t        port_id;
 101         uint16_t        vf_port;
 102
 103         uint8_t         vf_present;
 104         uint8_t         closed;
 105         uint8_t         vlan_strip;
 106
 107         uint32_t        link_status;
 108         uint32_t        link_speed;
 109
 110         struct rte_mem_resource *rxbuf_res;     /* UIO resource for Rx */
 111         struct hn_rx_bufinfo *rxbuf_info;
 112         uint32_t        rxbuf_section_cnt;      /* # of Rx sections */
 113         volatile uint32_t rxbuf_outstanding;
 114         uint16_t        max_queues;             /* Max available queues */
 115         uint16_t        num_queues;
 116         uint64_t        rss_offloads;
 117
 118         struct rte_mem_resource *chim_res;      /* UIO resource for Tx */
 119         struct rte_mempool *tx_pool;            /* Tx descriptors */
 120         uint32_t        chim_szmax;             /* Max size per buffer */
 121         uint32_t        chim_cnt;               /* Max packets per buffer */
 122
 123         uint32_t        latency;
 124         uint32_t        nvs_ver;
 125         uint32_t        ndis_ver;
 126         uint32_t        rndis_agg_size;
 127         uint32_t        rndis_agg_pkts;
 128         uint32_t        rndis_agg_align;
 129
 130         volatile uint32_t  rndis_pending;
 131         rte_atomic32_t  rndis_req_id;
 132         uint8_t         rndis_resp[256];
 133
 134         struct ether_addr mac_addr;
 135
 136         struct rte_eth_dev_owner owner;
 137         struct rte_intr_handle vf_intr;
 138
 139         struct vmbus_channel *channels[HN_MAX_CHANNELS];
 140 };
 141
 142 static inline struct vmbus_channel *
 143 hn_primary_chan(const struct hn_data *hv)
 144 {
 145         return hv->channels[0];
 146 }
 147
 148 uint32_t hn_process_events(struct hn_data *hv, uint16_t queue_id,
 149                        uint32_t tx_limit);
 150
 151 uint16_t hn_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 152                       uint16_t nb_pkts);
 153 uint16_t hn_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 154                       uint16_t nb_pkts);
 155
 156 int     hn_tx_pool_init(struct rte_eth_dev *dev);
 157 void    hn_tx_pool_uninit(struct rte_eth_dev *dev);
 158 int     hn_dev_link_update(struct rte_eth_dev *dev, int wait);
 159 int     hn_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 160                               uint16_t nb_desc, unsigned int socket_id,
 161                               const struct rte_eth_txconf *tx_conf);
 162 void    hn_dev_tx_queue_release(void *arg);
 163 void    hn_dev_tx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx,
 164                              struct rte_eth_txq_info *qinfo);
 165 int     hn_dev_tx_done_cleanup(void *arg, uint32_t free_cnt);
 166
 167 struct hn_rx_queue *hn_rx_queue_alloc(struct hn_data *hv,
 168                                       uint16_t queue_id,
 169                                       unsigned int socket_id);
 170 int     hn_dev_rx_queue_setup(struct rte_eth_dev *dev,
 171                               uint16_t queue_idx, uint16_t nb_desc,
 172                               unsigned int socket_id,
 173                               const struct rte_eth_rxconf *rx_conf,
 174                               struct rte_mempool *mp);
 175 void    hn_dev_rx_queue_release(void *arg);
 176 void    hn_dev_free_queues(struct rte_eth_dev *dev);
 177
 178 /* Check if VF is attached */
 179 static inline bool
 180 hn_vf_attached(const struct hn_data *hv)
 181 {
 182         return hv->vf_port != HN_INVALID_PORT;
 183 }
 184
 185 /* Get VF device for existing netvsc device */
 186 static inline struct rte_eth_dev *
 187 hn_get_vf_dev(const struct hn_data *hv)
 188 {
 189         uint16_t vf_port = hv->vf_port;
 190
 191         /* make sure vf_port is loaded */
 192         rte_smp_rmb();
 193
 194         if (vf_port == HN_INVALID_PORT)
 195                 return NULL;
 196         else
 197                 return &rte_eth_devices[vf_port];
 198 }
 199
 200 void    hn_vf_info_get(struct hn_data *hv,
 201                        struct rte_eth_dev_info *info);
 202 int     hn_vf_add(struct rte_eth_dev *dev, struct hn_data *hv);
 203 int     hn_vf_configure(struct rte_eth_dev *dev,
 204                         const struct rte_eth_conf *dev_conf);
 205 const uint32_t *hn_vf_supported_ptypes(struct rte_eth_dev *dev);
 206 int     hn_vf_start(struct rte_eth_dev *dev);
 207 void    hn_vf_reset(struct rte_eth_dev *dev);
 208 void    hn_vf_stop(struct rte_eth_dev *dev);
 209 void    hn_vf_close(struct rte_eth_dev *dev);
 210
 211 void    hn_vf_allmulticast_enable(struct rte_eth_dev *dev);
 212 void    hn_vf_allmulticast_disable(struct rte_eth_dev *dev);
 213 void    hn_vf_promiscuous_enable(struct rte_eth_dev *dev);
 214 void    hn_vf_promiscuous_disable(struct rte_eth_dev *dev);
 215 int     hn_vf_mc_addr_list(struct rte_eth_dev *dev,
 216                            struct ether_addr *mc_addr_set,
 217                            uint32_t nb_mc_addr);
 218
 219 int     hn_vf_link_update(struct rte_eth_dev *dev,
 220                           int wait_to_complete);
 221 int     hn_vf_tx_queue_setup(struct rte_eth_dev *dev,
 222                              uint16_t queue_idx, uint16_t nb_desc,
 223                              unsigned int socket_id,
 224                              const struct rte_eth_txconf *tx_conf);
 225 void    hn_vf_tx_queue_release(struct hn_data *hv, uint16_t queue_id);
 226 int     hn_vf_rx_queue_setup(struct rte_eth_dev *dev,
 227                              uint16_t queue_idx, uint16_t nb_desc,
 228                              unsigned int socket_id,
 229                              const struct rte_eth_rxconf *rx_conf,
 230                              struct rte_mempool *mp);
 231 void    hn_vf_rx_queue_release(struct hn_data *hv, uint16_t queue_id);
 232
 233 int     hn_vf_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats);
 234 void    hn_vf_stats_reset(struct rte_eth_dev *dev);
 235 int     hn_vf_xstats_get_names(struct rte_eth_dev *dev,
 236                                struct rte_eth_xstat_name *xstats_names,
 237                                unsigned int size);
 238 int     hn_vf_xstats_get(struct rte_eth_dev *dev,
 239                          struct rte_eth_xstat *xstats,
 240                          unsigned int n);
 241 void    hn_vf_xstats_reset(struct rte_eth_dev *dev);