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#define CHELSIO_CHIP_CODE(version, revision) (((version) << 4) | (revision)) 42#define CHELSIO_CHIP_VERSION(code) (((code) >> 4) & 0xf) 43#define CHELSIO_CHIP_RELEASE(code) ((code) & 0xf) 44 45/* All T4 and later chips have their PCI-E Device IDs encoded as 0xVFPP where: 46 * 47 * V = "4" for T4; "5" for T5, etc. or 48 * = "a" for T4 FPGA; "b" for T4 FPGA, etc. 49 * F = "0" for PF 0..3; "4".."7" for PF4..7; and "8" for VFs 50 * PP = adapter product designation 51 */ 52#define CHELSIO_T4 0x4 53#define CHELSIO_T5 0x5 54 55enum chip_type { 56 T4_A1 = CHELSIO_CHIP_CODE(CHELSIO_T4, 1), 57 T4_A2 = CHELSIO_CHIP_CODE(CHELSIO_T4, 2), 58 T4_FIRST_REV = T4_A1, 59 T4_LAST_REV = T4_A2, 60 61 T5_A0 = CHELSIO_CHIP_CODE(CHELSIO_T5, 0), 62 T5_A1 = CHELSIO_CHIP_CODE(CHELSIO_T5, 1), 63 T5_FIRST_REV = T5_A0, 64 T5_LAST_REV = T5_A1, 65}; 66 67/* 68 * The "len16" field of a Firmware Command Structure ... 69 */ 70#define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16) 71 72/* 73 * Per-VF statistics. 74 */ 75struct t4vf_port_stats { 76 /* 77 * TX statistics. 78 */ 79 u64 tx_bcast_bytes; /* broadcast */ 80 u64 tx_bcast_frames; 81 u64 tx_mcast_bytes; /* multicast */ 82 u64 tx_mcast_frames; 83 u64 tx_ucast_bytes; /* unicast */ 84 u64 tx_ucast_frames; 85 u64 tx_drop_frames; /* TX dropped frames */ 86 u64 tx_offload_bytes; /* offload */ 87 u64 tx_offload_frames; 88 89 /* 90 * RX statistics. 91 */ 92 u64 rx_bcast_bytes; /* broadcast */ 93 u64 rx_bcast_frames; 94 u64 rx_mcast_bytes; /* multicast */ 95 u64 rx_mcast_frames; 96 u64 rx_ucast_bytes; 97 u64 rx_ucast_frames; /* unicast */ 98 99 u64 rx_err_frames; /* RX error frames */ 100}; 101 102/* 103 * Per-"port" (Virtual Interface) link configuration ... 104 */ 105struct link_config { 106 unsigned int supported; /* link capabilities */ 107 unsigned int advertising; /* advertised capabilities */ 108 unsigned short requested_speed; /* speed user has requested */ 109 unsigned short speed; /* actual link speed */ 110 unsigned char requested_fc; /* flow control user has requested */ 111 unsigned char fc; /* actual link flow control */ 112 unsigned char autoneg; /* autonegotiating? */ 113 unsigned char link_ok; /* link up? */ 114}; 115 116enum { 117 PAUSE_RX = 1 << 0, 118 PAUSE_TX = 1 << 1, 119 PAUSE_AUTONEG = 1 << 2 120}; 121 122/* 123 * General device parameters ... 124 */ 125struct dev_params { 126 u32 fwrev; /* firmware version */ 127 u32 tprev; /* TP Microcode Version */ 128}; 129 130/* 131 * Scatter Gather Engine parameters. These are almost all determined by the 132 * Physical Function Driver. We just need to grab them to see within which 133 * environment we're playing ... 134 */ 135struct sge_params { 136 u32 sge_control; /* padding, boundaries, lengths, etc. */ 137 u32 sge_control2; /* T5: more of the same */ 138 u32 sge_host_page_size; /* RDMA page sizes */ 139 u32 sge_queues_per_page; /* RDMA queues/page */ 140 u32 sge_user_mode_limits; /* limits for BAR2 user mode accesses */ 141 u32 sge_fl_buffer_size[16]; /* free list buffer sizes */ 142 u32 sge_ingress_rx_threshold; /* RX counter interrupt threshold[4] */ 143 u32 sge_congestion_control; /* congestion thresholds, etc. */ 144 u32 sge_timer_value_0_and_1; /* interrupt coalescing timer values */ 145 u32 sge_timer_value_2_and_3; 146 u32 sge_timer_value_4_and_5; 147}; 148 149/* 150 * Vital Product Data parameters. 151 */ 152struct vpd_params { 153 u32 cclk; /* Core Clock (KHz) */ 154}; 155 156/* 157 * Global Receive Side Scaling (RSS) parameters in host-native format. 158 */ 159struct rss_params { 160 unsigned int mode; /* RSS mode */ 161 union { 162 struct { 163 unsigned int synmapen:1; /* SYN Map Enable */ 164 unsigned int syn4tupenipv6:1; /* enable hashing 4-tuple IPv6 SYNs */ 165 unsigned int syn2tupenipv6:1; /* enable hashing 2-tuple IPv6 SYNs */ 166 unsigned int syn4tupenipv4:1; /* enable hashing 4-tuple IPv4 SYNs */ 167 unsigned int syn2tupenipv4:1; /* enable hashing 2-tuple IPv4 SYNs */ 168 unsigned int ofdmapen:1; /* Offload Map Enable */ 169 unsigned int tnlmapen:1; /* Tunnel Map Enable */ 170 unsigned int tnlalllookup:1; /* Tunnel All Lookup */ 171 unsigned int hashtoeplitz:1; /* use Toeplitz hash */ 172 } basicvirtual; 173 } u; 174}; 175 176/* 177 * Virtual Interface RSS Configuration in host-native format. 178 */ 179union rss_vi_config { 180 struct { 181 u16 defaultq; /* Ingress Queue ID for !tnlalllookup */ 182 unsigned int ip6fourtupen:1; /* hash 4-tuple IPv6 ingress packets */ 183 unsigned int ip6twotupen:1; /* hash 2-tuple IPv6 ingress packets */ 184 unsigned int ip4fourtupen:1; /* hash 4-tuple IPv4 ingress packets */ 185 unsigned int ip4twotupen:1; /* hash 2-tuple IPv4 ingress packets */ 186 int udpen; /* hash 4-tuple UDP ingress packets */ 187 } basicvirtual; 188}; 189 190/* 191 * Maximum resources provisioned for a PCI VF. 192 */ 193struct vf_resources { 194 unsigned int nvi; /* N virtual interfaces */ 195 unsigned int neq; /* N egress Qs */ 196 unsigned int nethctrl; /* N egress ETH or CTRL Qs */ 197 unsigned int niqflint; /* N ingress Qs/w free list(s) & intr */ 198 unsigned int niq; /* N ingress Qs */ 199 unsigned int tc; /* PCI-E traffic class */ 200 unsigned int pmask; /* port access rights mask */ 201 unsigned int nexactf; /* N exact MPS filters */ 202 unsigned int r_caps; /* read capabilities */ 203 unsigned int wx_caps; /* write/execute capabilities */ 204}; 205 206/* 207 * Per-"adapter" (Virtual Function) parameters. 208 */ 209struct adapter_params { 210 struct dev_params dev; /* general device parameters */ 211 struct sge_params sge; /* Scatter Gather Engine */ 212 struct vpd_params vpd; /* Vital Product Data */ 213 struct rss_params rss; /* Receive Side Scaling */ 214 struct vf_resources vfres; /* Virtual Function Resource limits */ 215 enum chip_type chip; /* chip code */ 216 u8 nports; /* # of Ethernet "ports" */ 217}; 218 219#include "adapter.h" 220 221#ifndef PCI_VENDOR_ID_CHELSIO 222# define PCI_VENDOR_ID_CHELSIO 0x1425 223#endif 224 225#define for_each_port(adapter, iter) \ 226 for (iter = 0; iter < (adapter)->params.nports; iter++) 227 228static inline bool is_10g_port(const struct link_config *lc) 229{ 230 return (lc->supported & SUPPORTED_10000baseT_Full) != 0; 231} 232 233static inline bool is_x_10g_port(const struct link_config *lc) 234{ 235 return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0 || 236 (lc->supported & FW_PORT_CAP_SPEED_40G) != 0; 237} 238 239static inline unsigned int core_ticks_per_usec(const struct adapter *adapter) 240{ 241 return adapter->params.vpd.cclk / 1000; 242} 243 244static inline unsigned int us_to_core_ticks(const struct adapter *adapter, 245 unsigned int us) 246{ 247 return (us * adapter->params.vpd.cclk) / 1000; 248} 249 250static inline unsigned int core_ticks_to_us(const struct adapter *adapter, 251 unsigned int ticks) 252{ 253 return (ticks * 1000) / adapter->params.vpd.cclk; 254} 255 256int t4vf_wr_mbox_core(struct adapter *, const void *, int, void *, bool); 257 258static inline int t4vf_wr_mbox(struct adapter *adapter, const void *cmd, 259 int size, void *rpl) 260{ 261 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, true); 262} 263 264static inline int t4vf_wr_mbox_ns(struct adapter *adapter, const void *cmd, 265 int size, void *rpl) 266{ 267 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, false); 268} 269 270static inline int is_t4(enum chip_type chip) 271{ 272 return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T4; 273} 274 275int t4vf_wait_dev_ready(struct adapter *); 276int t4vf_port_init(struct adapter *, int); 277 278int t4vf_fw_reset(struct adapter *); 279int t4vf_set_params(struct adapter *, unsigned int, const u32 *, const u32 *); 280 281int t4vf_get_sge_params(struct adapter *); 282int t4vf_get_vpd_params(struct adapter *); 283int t4vf_get_dev_params(struct adapter *); 284int t4vf_get_rss_glb_config(struct adapter *); 285int t4vf_get_vfres(struct adapter *); 286 287int t4vf_read_rss_vi_config(struct adapter *, unsigned int, 288 union rss_vi_config *); 289int t4vf_write_rss_vi_config(struct adapter *, unsigned int, 290 union rss_vi_config *); 291int t4vf_config_rss_range(struct adapter *, unsigned int, int, int, 292 const u16 *, int); 293 294int t4vf_alloc_vi(struct adapter *, int); 295int t4vf_free_vi(struct adapter *, int); 296int t4vf_enable_vi(struct adapter *, unsigned int, bool, bool); 297int t4vf_identify_port(struct adapter *, unsigned int, unsigned int); 298 299int t4vf_set_rxmode(struct adapter *, unsigned int, int, int, int, int, int, 300 bool); 301int t4vf_alloc_mac_filt(struct adapter *, unsigned int, bool, unsigned int, 302 const u8 **, u16 *, u64 *, bool); 303int t4vf_change_mac(struct adapter *, unsigned int, int, const u8 *, bool); 304int t4vf_set_addr_hash(struct adapter *, unsigned int, bool, u64, bool); 305int t4vf_get_port_stats(struct adapter *, int, struct t4vf_port_stats *); 306 307int t4vf_iq_free(struct adapter *, unsigned int, unsigned int, unsigned int, 308 unsigned int); 309int t4vf_eth_eq_free(struct adapter *, unsigned int); 310 311int t4vf_handle_fw_rpl(struct adapter *, const __be64 *); 312 313#endif /* __T4VF_COMMON_H__ */ 314