drivers/net/cxgb4vf/t4vf_common.h

   1 /*
   2  * This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet
   3  * driver for Linux.
   4  *
   5  * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved.
   6  *
   7  * This software is available to you under a choice of one of two
   8  * licenses.  You may choose to be licensed under the terms of the GNU
   9  * General Public License (GPL) Version 2, available from the file
  10  * COPYING in the main directory of this source tree, or the
  11  * OpenIB.org BSD license below:
  12  *
  13  *     Redistribution and use in source and binary forms, with or
  14  *     without modification, are permitted provided that the following
  15  *     conditions are met:
  16  *
  17  *      - Redistributions of source code must retain the above
  18  *        copyright notice, this list of conditions and the following
  19  *        disclaimer.
  20  *
  21  *      - Redistributions in binary form must reproduce the above
  22  *        copyright notice, this list of conditions and the following
  23  *        disclaimer in the documentation and/or other materials
  24  *        provided with the distribution.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  30  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  31  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  32  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  33  * SOFTWARE.
  34  */
  35
  36 #ifndef __T4VF_COMMON_H__
  37 #define __T4VF_COMMON_H__
  38
  39 #include "../cxgb4/t4fw_api.h"
  40
  41 /*
  42  * The "len16" field of a Firmware Command Structure ...
  43  */
  44 #define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16)
  45
  46 /*
  47  * Per-VF statistics.
  48  */
  49 struct t4vf_port_stats {
  50         /*
  51          * TX statistics.
  52          */
  53         u64 tx_bcast_bytes;             /* broadcast */
  54         u64 tx_bcast_frames;
  55         u64 tx_mcast_bytes;             /* multicast */
  56         u64 tx_mcast_frames;
  57         u64 tx_ucast_bytes;             /* unicast */
  58         u64 tx_ucast_frames;
  59         u64 tx_drop_frames;             /* TX dropped frames */
  60         u64 tx_offload_bytes;           /* offload */
  61         u64 tx_offload_frames;
  62
  63         /*
  64          * RX statistics.
  65          */
  66         u64 rx_bcast_bytes;             /* broadcast */
  67         u64 rx_bcast_frames;
  68         u64 rx_mcast_bytes;             /* multicast */
  69         u64 rx_mcast_frames;
  70         u64 rx_ucast_bytes;
  71         u64 rx_ucast_frames;            /* unicast */
  72
  73         u64 rx_err_frames;              /* RX error frames */
  74 };
  75
  76 /*
  77  * Per-"port" (Virtual Interface) link configuration ...
  78  */
  79 struct link_config {
  80         unsigned int   supported;        /* link capabilities */
  81         unsigned int   advertising;      /* advertised capabilities */
  82         unsigned short requested_speed;  /* speed user has requested */
  83         unsigned short speed;            /* actual link speed */
  84         unsigned char  requested_fc;     /* flow control user has requested */
  85         unsigned char  fc;               /* actual link flow control */
  86         unsigned char  autoneg;          /* autonegotiating? */
  87         unsigned char  link_ok;          /* link up? */
  88 };
  89
  90 enum {
  91         PAUSE_RX      = 1 << 0,
  92         PAUSE_TX      = 1 << 1,
  93         PAUSE_AUTONEG = 1 << 2
  94 };
  95
  96 /*
  97  * General device parameters ...
  98  */
  99 struct dev_params {
 100         u32 fwrev;                      /* firmware version */
 101         u32 tprev;                      /* TP Microcode Version */
 102 };
 103
 104 /*
 105  * Scatter Gather Engine parameters.  These are almost all determined by the
 106  * Physical Function Driver.  We just need to grab them to see within which
 107  * environment we're playing ...
 108  */
 109 struct sge_params {
 110         u32 sge_control;                /* padding, boundaries, lengths, etc. */
 111         u32 sge_host_page_size;         /* RDMA page sizes */
 112         u32 sge_queues_per_page;        /* RDMA queues/page */
 113         u32 sge_user_mode_limits;       /* limits for BAR2 user mode accesses */
 114         u32 sge_fl_buffer_size[16];     /* free list buffer sizes */
 115         u32 sge_ingress_rx_threshold;   /* RX counter interrupt threshold[4] */
 116         u32 sge_timer_value_0_and_1;    /* interrupt coalescing timer values */
 117         u32 sge_timer_value_2_and_3;
 118         u32 sge_timer_value_4_and_5;
 119 };
 120
 121 /*
 122  * Vital Product Data parameters.
 123  */
 124 struct vpd_params {
 125         u32 cclk;                       /* Core Clock (KHz) */
 126 };
 127
 128 /*
 129  * Global Receive Side Scaling (RSS) parameters in host-native format.
 130  */
 131 struct rss_params {
 132         unsigned int mode;              /* RSS mode */
 133         union {
 134             struct {
 135                 int synmapen:1;         /* SYN Map Enable */
 136                 int syn4tupenipv6:1;    /* enable hashing 4-tuple IPv6 SYNs */
 137                 int syn2tupenipv6:1;    /* enable hashing 2-tuple IPv6 SYNs */
 138                 int syn4tupenipv4:1;    /* enable hashing 4-tuple IPv4 SYNs */
 139                 int syn2tupenipv4:1;    /* enable hashing 2-tuple IPv4 SYNs */
 140                 int ofdmapen:1;         /* Offload Map Enable */
 141                 int tnlmapen:1;         /* Tunnel Map Enable */
 142                 int tnlalllookup:1;     /* Tunnel All Lookup */
 143                 int hashtoeplitz:1;     /* use Toeplitz hash */
 144             } basicvirtual;
 145         } u;
 146 };
 147
 148 /*
 149  * Virtual Interface RSS Configuration in host-native format.
 150  */
 151 union rss_vi_config {
 152     struct {
 153         u16 defaultq;                   /* Ingress Queue ID for !tnlalllookup */
 154         int ip6fourtupen:1;             /* hash 4-tuple IPv6 ingress packets */
 155         int ip6twotupen:1;              /* hash 2-tuple IPv6 ingress packets */
 156         int ip4fourtupen:1;             /* hash 4-tuple IPv4 ingress packets */
 157         int ip4twotupen:1;              /* hash 2-tuple IPv4 ingress packets */
 158         int udpen;                      /* hash 4-tuple UDP ingress packets */
 159     } basicvirtual;
 160 };
 161
 162 /*
 163  * Maximum resources provisioned for a PCI VF.
 164  */
 165 struct vf_resources {
 166         unsigned int nvi;               /* N virtual interfaces */
 167         unsigned int neq;               /* N egress Qs */
 168         unsigned int nethctrl;          /* N egress ETH or CTRL Qs */
 169         unsigned int niqflint;          /* N ingress Qs/w free list(s) & intr */
 170         unsigned int niq;               /* N ingress Qs */
 171         unsigned int tc;                /* PCI-E traffic class */
 172         unsigned int pmask;             /* port access rights mask */
 173         unsigned int nexactf;           /* N exact MPS filters */
 174         unsigned int r_caps;            /* read capabilities */
 175         unsigned int wx_caps;           /* write/execute capabilities */
 176 };
 177
 178 /*
 179  * Per-"adapter" (Virtual Function) parameters.
 180  */
 181 struct adapter_params {
 182         struct dev_params dev;          /* general device parameters */
 183         struct sge_params sge;          /* Scatter Gather Engine */
 184         struct vpd_params vpd;          /* Vital Product Data */
 185         struct rss_params rss;          /* Receive Side Scaling */
 186         struct vf_resources vfres;      /* Virtual Function Resource limits */
 187         u8 nports;                      /* # of Ethernet "ports" */
 188 };
 189
 190 #include "adapter.h"
 191
 192 #ifndef PCI_VENDOR_ID_CHELSIO
 193 # define PCI_VENDOR_ID_CHELSIO 0x1425
 194 #endif
 195
 196 #define for_each_port(adapter, iter) \
 197         for (iter = 0; iter < (adapter)->params.nports; iter++)
 198
 199 static inline bool is_10g_port(const struct link_config *lc)
 200 {
 201         return (lc->supported & SUPPORTED_10000baseT_Full) != 0;
 202 }
 203
 204 static inline unsigned int core_ticks_per_usec(const struct adapter *adapter)
 205 {
 206         return adapter->params.vpd.cclk / 1000;
 207 }
 208
 209 static inline unsigned int us_to_core_ticks(const struct adapter *adapter,
 210                                             unsigned int us)
 211 {
 212         return (us * adapter->params.vpd.cclk) / 1000;
 213 }
 214
 215 static inline unsigned int core_ticks_to_us(const struct adapter *adapter,
 216                                             unsigned int ticks)
 217 {
 218         return (ticks * 1000) / adapter->params.vpd.cclk;
 219 }
 220
 221 int t4vf_wr_mbox_core(struct adapter *, const void *, int, void *, bool);
 222
 223 static inline int t4vf_wr_mbox(struct adapter *adapter, const void *cmd,
 224                                int size, void *rpl)
 225 {
 226         return t4vf_wr_mbox_core(adapter, cmd, size, rpl, true);
 227 }
 228
 229 static inline int t4vf_wr_mbox_ns(struct adapter *adapter, const void *cmd,
 230                                   int size, void *rpl)
 231 {
 232         return t4vf_wr_mbox_core(adapter, cmd, size, rpl, false);
 233 }
 234
 235 int __devinit t4vf_wait_dev_ready(struct adapter *);
 236 int __devinit t4vf_port_init(struct adapter *, int);
 237
 238 int t4vf_query_params(struct adapter *, unsigned int, const u32 *, u32 *);
 239 int t4vf_set_params(struct adapter *, unsigned int, const u32 *, const u32 *);
 240
 241 int t4vf_get_sge_params(struct adapter *);
 242 int t4vf_get_vpd_params(struct adapter *);
 243 int t4vf_get_dev_params(struct adapter *);
 244 int t4vf_get_rss_glb_config(struct adapter *);
 245 int t4vf_get_vfres(struct adapter *);
 246
 247 int t4vf_read_rss_vi_config(struct adapter *, unsigned int,
 248                             union rss_vi_config *);
 249 int t4vf_write_rss_vi_config(struct adapter *, unsigned int,
 250                              union rss_vi_config *);
 251 int t4vf_config_rss_range(struct adapter *, unsigned int, int, int,
 252                           const u16 *, int);
 253
 254 int t4vf_alloc_vi(struct adapter *, int);
 255 int t4vf_free_vi(struct adapter *, int);
 256 int t4vf_enable_vi(struct adapter *, unsigned int, bool, bool);
 257 int t4vf_identify_port(struct adapter *, unsigned int, unsigned int);
 258
 259 int t4vf_set_rxmode(struct adapter *, unsigned int, int, int, int, int, int,
 260                     bool);
 261 int t4vf_alloc_mac_filt(struct adapter *, unsigned int, bool, unsigned int,
 262                         const u8 **, u16 *, u64 *, bool);
 263 int t4vf_change_mac(struct adapter *, unsigned int, int, const u8 *, bool);
 264 int t4vf_set_addr_hash(struct adapter *, unsigned int, bool, u64, bool);
 265 int t4vf_get_port_stats(struct adapter *, int, struct t4vf_port_stats *);
 266
 267 int t4vf_iq_free(struct adapter *, unsigned int, unsigned int, unsigned int,
 268                  unsigned int);
 269 int t4vf_eth_eq_free(struct adapter *, unsigned int);
 270
 271 int t4vf_handle_fw_rpl(struct adapter *, const __be64 *);
 272
 273 #endif /* __T4VF_COMMON_H__ */