drivers/net/ethernet/netronome/nfp/nfp_port.h

   1 /*
   2  * Copyright (C) 2017 Netronome Systems, Inc.
   3  *
   4  * This software is dual licensed under the GNU General License Version 2,
   5  * June 1991 as shown in the file COPYING in the top-level directory of this
   6  * source tree or the BSD 2-Clause License provided below.  You have the
   7  * option to license this software under the complete terms of either license.
   8  *
   9  * The BSD 2-Clause License:
  10  *
  11  *     Redistribution and use in source and binary forms, with or
  12  *     without modification, are permitted provided that the following
  13  *     conditions are met:
  14  *
  15  *      1. Redistributions of source code must retain the above
  16  *         copyright notice, this list of conditions and the following
  17  *         disclaimer.
  18  *
  19  *      2. Redistributions in binary form must reproduce the above
  20  *         copyright notice, this list of conditions and the following
  21  *         disclaimer in the documentation and/or other materials
  22  *         provided with the distribution.
  23  *
  24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  31  * SOFTWARE.
  32  */
  33
  34 #ifndef _NFP_PORT_H_
  35 #define _NFP_PORT_H_
  36
  37 #include <net/devlink.h>
  38
  39 struct net_device;
  40 struct nfp_app;
  41 struct nfp_pf;
  42 struct nfp_port;
  43
  44 /**
  45  * enum nfp_port_type - type of port NFP can switch traffic to
  46  * @NFP_PORT_INVALID:   port is invalid, %NFP_PORT_PHYS_PORT transitions to this
  47  *                      state when port disappears because of FW fault or config
  48  *                      change
  49  * @NFP_PORT_PHYS_PORT: external NIC port
  50  * @NFP_PORT_PF_PORT:   logical port of PCI PF
  51  * @NFP_PORT_VF_PORT:   logical port of PCI VF
  52  */
  53 enum nfp_port_type {
  54         NFP_PORT_INVALID,
  55         NFP_PORT_PHYS_PORT,
  56         NFP_PORT_PF_PORT,
  57         NFP_PORT_VF_PORT,
  58 };
  59
  60 /**
  61  * enum nfp_port_flags - port flags (can be type-specific)
  62  * @NFP_PORT_CHANGED:   port state has changed since last eth table refresh;
  63  *                      for NFP_PORT_PHYS_PORT, never set otherwise; must hold
  64  *                      rtnl_lock to clear
  65  */
  66 enum nfp_port_flags {
  67         NFP_PORT_CHANGED = 0,
  68 };
  69
  70 /**
  71  * struct nfp_port - structure representing NFP port
  72  * @netdev:     backpointer to associated netdev
  73  * @type:       what port type does the entity represent
  74  * @flags:      port flags
  75  * @tc_offload_cnt:     number of active TC offloads, how offloads are counted
  76  *                      is not defined, use as a boolean
  77  * @app:        backpointer to the app structure
  78  * @dl_port:    devlink port structure
  79  * @eth_id:     for %NFP_PORT_PHYS_PORT port ID in NFP enumeration scheme
  80  * @eth_port:   for %NFP_PORT_PHYS_PORT translated ETH Table port entry
  81  * @eth_stats:  for %NFP_PORT_PHYS_PORT MAC stats if available
  82  * @pf_id:      for %NFP_PORT_PF_PORT, %NFP_PORT_VF_PORT ID of the PCI PF (0-3)
  83  * @vf_id:      for %NFP_PORT_VF_PORT ID of the PCI VF within @pf_id
  84  * @vnic:       for %NFP_PORT_PF_PORT, %NFP_PORT_VF_PORT vNIC ctrl memory
  85  * @port_list:  entry on pf's list of ports
  86  */
  87 struct nfp_port {
  88         struct net_device *netdev;
  89         enum nfp_port_type type;
  90
  91         unsigned long flags;
  92         unsigned long tc_offload_cnt;
  93
  94         struct nfp_app *app;
  95
  96         struct devlink_port dl_port;
  97
  98         union {
  99                 /* NFP_PORT_PHYS_PORT */
 100                 struct {
 101                         unsigned int eth_id;
 102                         struct nfp_eth_table_port *eth_port;
 103                         u8 __iomem *eth_stats;
 104                 };
 105                 /* NFP_PORT_PF_PORT, NFP_PORT_VF_PORT */
 106                 struct {
 107                         unsigned int pf_id;
 108                         unsigned int vf_id;
 109                         u8 __iomem *vnic;
 110                 };
 111         };
 112
 113         struct list_head port_list;
 114 };
 115
 116 extern const struct ethtool_ops nfp_port_ethtool_ops;
 117 extern const struct switchdev_ops nfp_port_switchdev_ops;
 118
 119 int nfp_port_setup_tc(struct net_device *netdev, enum tc_setup_type type,
 120                       void *type_data);
 121
 122 static inline bool nfp_port_is_vnic(const struct nfp_port *port)
 123 {
 124         return port->type == NFP_PORT_PF_PORT || port->type == NFP_PORT_VF_PORT;
 125 }
 126
 127 int
 128 nfp_port_set_features(struct net_device *netdev, netdev_features_t features);
 129
 130 struct nfp_port *nfp_port_from_netdev(struct net_device *netdev);
 131 struct nfp_port *
 132 nfp_port_from_id(struct nfp_pf *pf, enum nfp_port_type type, unsigned int id);
 133 struct nfp_eth_table_port *__nfp_port_get_eth_port(struct nfp_port *port);
 134 struct nfp_eth_table_port *nfp_port_get_eth_port(struct nfp_port *port);
 135
 136 int
 137 nfp_port_get_phys_port_name(struct net_device *netdev, char *name, size_t len);
 138 int nfp_port_configure(struct net_device *netdev, bool configed);
 139
 140 struct nfp_port *
 141 nfp_port_alloc(struct nfp_app *app, enum nfp_port_type type,
 142                struct net_device *netdev);
 143 void nfp_port_free(struct nfp_port *port);
 144
 145 int nfp_port_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
 146                            struct nfp_port *port, unsigned int id);
 147
 148 int nfp_net_refresh_eth_port(struct nfp_port *port);
 149 void nfp_net_refresh_port_table(struct nfp_port *port);
 150 int nfp_net_refresh_port_table_sync(struct nfp_pf *pf);
 151
 152 int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port);
 153 void nfp_devlink_port_unregister(struct nfp_port *port);
 154
 155 /**
 156  * Mac stats (0x0000 - 0x0200)
 157  * all counters are 64bit.
 158  */
 159 #define NFP_MAC_STATS_BASE                0x0000
 160 #define NFP_MAC_STATS_SIZE                0x0200
 161
 162 #define NFP_MAC_STATS_RX_IN_OCTETS                      (NFP_MAC_STATS_BASE + 0x000)
 163                                                         /* unused 0x008 */
 164 #define NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS          (NFP_MAC_STATS_BASE + 0x010)
 165 #define NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS            (NFP_MAC_STATS_BASE + 0x018)
 166 #define NFP_MAC_STATS_RX_VLAN_RECEIVED_OK               (NFP_MAC_STATS_BASE + 0x020)
 167 #define NFP_MAC_STATS_RX_IN_ERRORS                      (NFP_MAC_STATS_BASE + 0x028)
 168 #define NFP_MAC_STATS_RX_IN_BROADCAST_PKTS              (NFP_MAC_STATS_BASE + 0x030)
 169 #define NFP_MAC_STATS_RX_DROP_EVENTS                    (NFP_MAC_STATS_BASE + 0x038)
 170 #define NFP_MAC_STATS_RX_ALIGNMENT_ERRORS               (NFP_MAC_STATS_BASE + 0x040)
 171 #define NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES          (NFP_MAC_STATS_BASE + 0x048)
 172 #define NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK             (NFP_MAC_STATS_BASE + 0x050)
 173 #define NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS    (NFP_MAC_STATS_BASE + 0x058)
 174 #define NFP_MAC_STATS_RX_UNICAST_PKTS                   (NFP_MAC_STATS_BASE + 0x060)
 175 #define NFP_MAC_STATS_RX_MULTICAST_PKTS                 (NFP_MAC_STATS_BASE + 0x068)
 176 #define NFP_MAC_STATS_RX_PKTS                           (NFP_MAC_STATS_BASE + 0x070)
 177 #define NFP_MAC_STATS_RX_UNDERSIZE_PKTS                 (NFP_MAC_STATS_BASE + 0x078)
 178 #define NFP_MAC_STATS_RX_PKTS_64_OCTETS                 (NFP_MAC_STATS_BASE + 0x080)
 179 #define NFP_MAC_STATS_RX_PKTS_65_TO_127_OCTETS          (NFP_MAC_STATS_BASE + 0x088)
 180 #define NFP_MAC_STATS_RX_PKTS_512_TO_1023_OCTETS        (NFP_MAC_STATS_BASE + 0x090)
 181 #define NFP_MAC_STATS_RX_PKTS_1024_TO_1518_OCTETS       (NFP_MAC_STATS_BASE + 0x098)
 182 #define NFP_MAC_STATS_RX_JABBERS                        (NFP_MAC_STATS_BASE + 0x0a0)
 183 #define NFP_MAC_STATS_RX_FRAGMENTS                      (NFP_MAC_STATS_BASE + 0x0a8)
 184 #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2            (NFP_MAC_STATS_BASE + 0x0b0)
 185 #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3            (NFP_MAC_STATS_BASE + 0x0b8)
 186 #define NFP_MAC_STATS_RX_PKTS_128_TO_255_OCTETS         (NFP_MAC_STATS_BASE + 0x0c0)
 187 #define NFP_MAC_STATS_RX_PKTS_256_TO_511_OCTETS         (NFP_MAC_STATS_BASE + 0x0c8)
 188 #define NFP_MAC_STATS_RX_PKTS_1519_TO_MAX_OCTETS        (NFP_MAC_STATS_BASE + 0x0d0)
 189 #define NFP_MAC_STATS_RX_OVERSIZE_PKTS                  (NFP_MAC_STATS_BASE + 0x0d8)
 190 #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0            (NFP_MAC_STATS_BASE + 0x0e0)
 191 #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1            (NFP_MAC_STATS_BASE + 0x0e8)
 192 #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4            (NFP_MAC_STATS_BASE + 0x0f0)
 193 #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5            (NFP_MAC_STATS_BASE + 0x0f8)
 194 #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6            (NFP_MAC_STATS_BASE + 0x100)
 195 #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7            (NFP_MAC_STATS_BASE + 0x108)
 196 #define NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED       (NFP_MAC_STATS_BASE + 0x110)
 197 #define NFP_MAC_STATS_RX_MAC_HEAD_DROP                  (NFP_MAC_STATS_BASE + 0x118)
 198                                                         /* unused 0x120 */
 199                                                         /* unused 0x128 */
 200                                                         /* unused 0x130 */
 201 #define NFP_MAC_STATS_TX_QUEUE_DROP                     (NFP_MAC_STATS_BASE + 0x138)
 202 #define NFP_MAC_STATS_TX_OUT_OCTETS                     (NFP_MAC_STATS_BASE + 0x140)
 203                                                         /* unused 0x148 */
 204 #define NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK            (NFP_MAC_STATS_BASE + 0x150)
 205 #define NFP_MAC_STATS_TX_OUT_ERRORS                     (NFP_MAC_STATS_BASE + 0x158)
 206 #define NFP_MAC_STATS_TX_BROADCAST_PKTS                 (NFP_MAC_STATS_BASE + 0x160)
 207 #define NFP_MAC_STATS_TX_PKTS_64_OCTETS                 (NFP_MAC_STATS_BASE + 0x168)
 208 #define NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS         (NFP_MAC_STATS_BASE + 0x170)
 209 #define NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS        (NFP_MAC_STATS_BASE + 0x178)
 210 #define NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES          (NFP_MAC_STATS_BASE + 0x180)
 211 #define NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK          (NFP_MAC_STATS_BASE + 0x188)
 212 #define NFP_MAC_STATS_TX_UNICAST_PKTS                   (NFP_MAC_STATS_BASE + 0x190)
 213 #define NFP_MAC_STATS_TX_MULTICAST_PKTS                 (NFP_MAC_STATS_BASE + 0x198)
 214 #define NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS          (NFP_MAC_STATS_BASE + 0x1a0)
 215 #define NFP_MAC_STATS_TX_PKTS_128_TO_255_OCTETS         (NFP_MAC_STATS_BASE + 0x1a8)
 216 #define NFP_MAC_STATS_TX_PKTS_1024_TO_1518_OCTETS       (NFP_MAC_STATS_BASE + 0x1b0)
 217 #define NFP_MAC_STATS_TX_PKTS_1519_TO_MAX_OCTETS        (NFP_MAC_STATS_BASE + 0x1b8)
 218 #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS0            (NFP_MAC_STATS_BASE + 0x1c0)
 219 #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS1            (NFP_MAC_STATS_BASE + 0x1c8)
 220 #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS4            (NFP_MAC_STATS_BASE + 0x1d0)
 221 #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS5            (NFP_MAC_STATS_BASE + 0x1d8)
 222 #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS2            (NFP_MAC_STATS_BASE + 0x1e0)
 223 #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS3            (NFP_MAC_STATS_BASE + 0x1e8)
 224 #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS6            (NFP_MAC_STATS_BASE + 0x1f0)
 225 #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS7            (NFP_MAC_STATS_BASE + 0x1f8)
 226
 227 #endif