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/t4_hw.h" 40 #include "../cxgb4/t4fw_api.h" 41 42 #define CHELSIO_CHIP_CODE(version, revision) (((version) << 4) | (revision)) 43 #define CHELSIO_CHIP_VERSION(code) (((code) >> 4) & 0xf) 44 #define CHELSIO_CHIP_RELEASE(code) ((code) & 0xf) 45 46 /* All T4 and later chips have their PCI-E Device IDs encoded as 0xVFPP where: 47 * 48 * V = "4" for T4; "5" for T5, etc. or 49 * = "a" for T4 FPGA; "b" for T4 FPGA, etc. 50 * F = "0" for PF 0..3; "4".."7" for PF4..7; and "8" for VFs 51 * PP = adapter product designation 52 */ 53 #define CHELSIO_T4 0x4 54 #define CHELSIO_T5 0x5 55 #define CHELSIO_T6 0x6 56 57 enum chip_type { 58 T4_A1 = CHELSIO_CHIP_CODE(CHELSIO_T4, 1), 59 T4_A2 = CHELSIO_CHIP_CODE(CHELSIO_T4, 2), 60 T4_FIRST_REV = T4_A1, 61 T4_LAST_REV = T4_A2, 62 63 T5_A0 = CHELSIO_CHIP_CODE(CHELSIO_T5, 0), 64 T5_A1 = CHELSIO_CHIP_CODE(CHELSIO_T5, 1), 65 T5_FIRST_REV = T5_A0, 66 T5_LAST_REV = T5_A1, 67 }; 68 69 /* 70 * The "len16" field of a Firmware Command Structure ... 71 */ 72 #define FW_LEN16(fw_struct) FW_CMD_LEN16_V(sizeof(fw_struct) / 16) 73 74 /* 75 * Per-VF statistics. 76 */ 77 struct t4vf_port_stats { 78 /* 79 * TX statistics. 80 */ 81 u64 tx_bcast_bytes; /* broadcast */ 82 u64 tx_bcast_frames; 83 u64 tx_mcast_bytes; /* multicast */ 84 u64 tx_mcast_frames; 85 u64 tx_ucast_bytes; /* unicast */ 86 u64 tx_ucast_frames; 87 u64 tx_drop_frames; /* TX dropped frames */ 88 u64 tx_offload_bytes; /* offload */ 89 u64 tx_offload_frames; 90 91 /* 92 * RX statistics. 93 */ 94 u64 rx_bcast_bytes; /* broadcast */ 95 u64 rx_bcast_frames; 96 u64 rx_mcast_bytes; /* multicast */ 97 u64 rx_mcast_frames; 98 u64 rx_ucast_bytes; 99 u64 rx_ucast_frames; /* unicast */ 100 101 u64 rx_err_frames; /* RX error frames */ 102 }; 103 104 /* 105 * Per-"port" (Virtual Interface) link configuration ... 106 */ 107 struct link_config { 108 unsigned int supported; /* link capabilities */ 109 unsigned int advertising; /* advertised capabilities */ 110 unsigned short requested_speed; /* speed user has requested */ 111 unsigned short speed; /* actual link speed */ 112 unsigned char requested_fc; /* flow control user has requested */ 113 unsigned char fc; /* actual link flow control */ 114 unsigned char autoneg; /* autonegotiating? */ 115 unsigned char link_ok; /* link up? */ 116 }; 117 118 enum { 119 PAUSE_RX = 1 << 0, 120 PAUSE_TX = 1 << 1, 121 PAUSE_AUTONEG = 1 << 2 122 }; 123 124 /* 125 * General device parameters ... 126 */ 127 struct dev_params { 128 u32 fwrev; /* firmware version */ 129 u32 tprev; /* TP Microcode Version */ 130 }; 131 132 /* 133 * Scatter Gather Engine parameters. These are almost all determined by the 134 * Physical Function Driver. We just need to grab them to see within which 135 * environment we're playing ... 136 */ 137 struct sge_params { 138 u32 sge_control; /* padding, boundaries, lengths, etc. */ 139 u32 sge_control2; /* T5: more of the same */ 140 u32 sge_host_page_size; /* PF0-7 page sizes */ 141 u32 sge_egress_queues_per_page; /* PF0-7 egress queues/page */ 142 u32 sge_ingress_queues_per_page;/* PF0-7 ingress queues/page */ 143 u32 sge_vf_hps; /* host page size for our vf */ 144 u32 sge_vf_eq_qpp; /* egress queues/page for our VF */ 145 u32 sge_vf_iq_qpp; /* ingress queues/page for our VF */ 146 u32 sge_fl_buffer_size[16]; /* free list buffer sizes */ 147 u32 sge_ingress_rx_threshold; /* RX counter interrupt threshold[4] */ 148 u32 sge_congestion_control; /* congestion thresholds, etc. */ 149 u32 sge_timer_value_0_and_1; /* interrupt coalescing timer values */ 150 u32 sge_timer_value_2_and_3; 151 u32 sge_timer_value_4_and_5; 152 }; 153 154 /* 155 * Vital Product Data parameters. 156 */ 157 struct vpd_params { 158 u32 cclk; /* Core Clock (KHz) */ 159 }; 160 161 /* Stores chip specific parameters */ 162 struct arch_specific_params { 163 u32 sge_fl_db; 164 u16 mps_tcam_size; 165 }; 166 167 /* 168 * Global Receive Side Scaling (RSS) parameters in host-native format. 169 */ 170 struct rss_params { 171 unsigned int mode; /* RSS mode */ 172 union { 173 struct { 174 unsigned int synmapen:1; /* SYN Map Enable */ 175 unsigned int syn4tupenipv6:1; /* enable hashing 4-tuple IPv6 SYNs */ 176 unsigned int syn2tupenipv6:1; /* enable hashing 2-tuple IPv6 SYNs */ 177 unsigned int syn4tupenipv4:1; /* enable hashing 4-tuple IPv4 SYNs */ 178 unsigned int syn2tupenipv4:1; /* enable hashing 2-tuple IPv4 SYNs */ 179 unsigned int ofdmapen:1; /* Offload Map Enable */ 180 unsigned int tnlmapen:1; /* Tunnel Map Enable */ 181 unsigned int tnlalllookup:1; /* Tunnel All Lookup */ 182 unsigned int hashtoeplitz:1; /* use Toeplitz hash */ 183 } basicvirtual; 184 } u; 185 }; 186 187 /* 188 * Virtual Interface RSS Configuration in host-native format. 189 */ 190 union rss_vi_config { 191 struct { 192 u16 defaultq; /* Ingress Queue ID for !tnlalllookup */ 193 unsigned int ip6fourtupen:1; /* hash 4-tuple IPv6 ingress packets */ 194 unsigned int ip6twotupen:1; /* hash 2-tuple IPv6 ingress packets */ 195 unsigned int ip4fourtupen:1; /* hash 4-tuple IPv4 ingress packets */ 196 unsigned int ip4twotupen:1; /* hash 2-tuple IPv4 ingress packets */ 197 int udpen; /* hash 4-tuple UDP ingress packets */ 198 } basicvirtual; 199 }; 200 201 /* 202 * Maximum resources provisioned for a PCI VF. 203 */ 204 struct vf_resources { 205 unsigned int nvi; /* N virtual interfaces */ 206 unsigned int neq; /* N egress Qs */ 207 unsigned int nethctrl; /* N egress ETH or CTRL Qs */ 208 unsigned int niqflint; /* N ingress Qs/w free list(s) & intr */ 209 unsigned int niq; /* N ingress Qs */ 210 unsigned int tc; /* PCI-E traffic class */ 211 unsigned int pmask; /* port access rights mask */ 212 unsigned int nexactf; /* N exact MPS filters */ 213 unsigned int r_caps; /* read capabilities */ 214 unsigned int wx_caps; /* write/execute capabilities */ 215 }; 216 217 /* 218 * Per-"adapter" (Virtual Function) parameters. 219 */ 220 struct adapter_params { 221 struct dev_params dev; /* general device parameters */ 222 struct sge_params sge; /* Scatter Gather Engine */ 223 struct vpd_params vpd; /* Vital Product Data */ 224 struct rss_params rss; /* Receive Side Scaling */ 225 struct vf_resources vfres; /* Virtual Function Resource limits */ 226 struct arch_specific_params arch; /* chip specific params */ 227 enum chip_type chip; /* chip code */ 228 u8 nports; /* # of Ethernet "ports" */ 229 }; 230 231 /* Firmware Mailbox Command/Reply log. All values are in Host-Endian format. 232 * The access and execute times are signed in order to accommodate negative 233 * error returns. 234 */ 235 struct mbox_cmd { 236 u64 cmd[MBOX_LEN / 8]; /* a Firmware Mailbox Command/Reply */ 237 u64 timestamp; /* OS-dependent timestamp */ 238 u32 seqno; /* sequence number */ 239 s16 access; /* time (ms) to access mailbox */ 240 s16 execute; /* time (ms) to execute */ 241 }; 242 243 struct mbox_cmd_log { 244 unsigned int size; /* number of entries in the log */ 245 unsigned int cursor; /* next position in the log to write */ 246 u32 seqno; /* next sequence number */ 247 /* variable length mailbox command log starts here */ 248 }; 249 250 /* Given a pointer to a Firmware Mailbox Command Log and a log entry index, 251 * return a pointer to the specified entry. 252 */ 253 static inline struct mbox_cmd *mbox_cmd_log_entry(struct mbox_cmd_log *log, 254 unsigned int entry_idx) 255 { 256 return &((struct mbox_cmd *)&(log)[1])[entry_idx]; 257 } 258 259 #include "adapter.h" 260 261 #ifndef PCI_VENDOR_ID_CHELSIO 262 # define PCI_VENDOR_ID_CHELSIO 0x1425 263 #endif 264 265 #define for_each_port(adapter, iter) \ 266 for (iter = 0; iter < (adapter)->params.nports; iter++) 267 268 static inline bool is_10g_port(const struct link_config *lc) 269 { 270 return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0; 271 } 272 273 static inline bool is_x_10g_port(const struct link_config *lc) 274 { 275 return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0 || 276 (lc->supported & FW_PORT_CAP_SPEED_40G) != 0; 277 } 278 279 static inline unsigned int core_ticks_per_usec(const struct adapter *adapter) 280 { 281 return adapter->params.vpd.cclk / 1000; 282 } 283 284 static inline unsigned int us_to_core_ticks(const struct adapter *adapter, 285 unsigned int us) 286 { 287 return (us * adapter->params.vpd.cclk) / 1000; 288 } 289 290 static inline unsigned int core_ticks_to_us(const struct adapter *adapter, 291 unsigned int ticks) 292 { 293 return (ticks * 1000) / adapter->params.vpd.cclk; 294 } 295 296 int t4vf_wr_mbox_core(struct adapter *, const void *, int, void *, bool); 297 298 static inline int t4vf_wr_mbox(struct adapter *adapter, const void *cmd, 299 int size, void *rpl) 300 { 301 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, true); 302 } 303 304 static inline int t4vf_wr_mbox_ns(struct adapter *adapter, const void *cmd, 305 int size, void *rpl) 306 { 307 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, false); 308 } 309 310 #define CHELSIO_PCI_ID_VER(dev_id) ((dev_id) >> 12) 311 312 static inline int is_t4(enum chip_type chip) 313 { 314 return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T4; 315 } 316 317 /** 318 * hash_mac_addr - return the hash value of a MAC address 319 * @addr: the 48-bit Ethernet MAC address 320 * 321 * Hashes a MAC address according to the hash function used by hardware 322 * inexact (hash) address matching. 323 */ 324 static inline int hash_mac_addr(const u8 *addr) 325 { 326 u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2]; 327 u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5]; 328 329 a ^= b; 330 a ^= (a >> 12); 331 a ^= (a >> 6); 332 return a & 0x3f; 333 } 334 335 int t4vf_wait_dev_ready(struct adapter *); 336 int t4vf_port_init(struct adapter *, int); 337 338 int t4vf_fw_reset(struct adapter *); 339 int t4vf_set_params(struct adapter *, unsigned int, const u32 *, const u32 *); 340 341 int t4vf_fl_pkt_align(struct adapter *adapter); 342 enum t4_bar2_qtype { T4_BAR2_QTYPE_EGRESS, T4_BAR2_QTYPE_INGRESS }; 343 int t4vf_bar2_sge_qregs(struct adapter *adapter, 344 unsigned int qid, 345 enum t4_bar2_qtype qtype, 346 u64 *pbar2_qoffset, 347 unsigned int *pbar2_qid); 348 349 int t4vf_get_sge_params(struct adapter *); 350 int t4vf_get_vpd_params(struct adapter *); 351 int t4vf_get_dev_params(struct adapter *); 352 int t4vf_get_rss_glb_config(struct adapter *); 353 int t4vf_get_vfres(struct adapter *); 354 355 int t4vf_read_rss_vi_config(struct adapter *, unsigned int, 356 union rss_vi_config *); 357 int t4vf_write_rss_vi_config(struct adapter *, unsigned int, 358 union rss_vi_config *); 359 int t4vf_config_rss_range(struct adapter *, unsigned int, int, int, 360 const u16 *, int); 361 362 int t4vf_alloc_vi(struct adapter *, int); 363 int t4vf_free_vi(struct adapter *, int); 364 int t4vf_enable_vi(struct adapter *, unsigned int, bool, bool); 365 int t4vf_identify_port(struct adapter *, unsigned int, unsigned int); 366 367 int t4vf_set_rxmode(struct adapter *, unsigned int, int, int, int, int, int, 368 bool); 369 int t4vf_alloc_mac_filt(struct adapter *, unsigned int, bool, unsigned int, 370 const u8 **, u16 *, u64 *, bool); 371 int t4vf_free_mac_filt(struct adapter *, unsigned int, unsigned int naddr, 372 const u8 **, bool); 373 int t4vf_change_mac(struct adapter *, unsigned int, int, const u8 *, bool); 374 int t4vf_set_addr_hash(struct adapter *, unsigned int, bool, u64, bool); 375 int t4vf_get_port_stats(struct adapter *, int, struct t4vf_port_stats *); 376 377 int t4vf_iq_free(struct adapter *, unsigned int, unsigned int, unsigned int, 378 unsigned int); 379 int t4vf_eth_eq_free(struct adapter *, unsigned int); 380 381 int t4vf_handle_fw_rpl(struct adapter *, const __be64 *); 382 int t4vf_prep_adapter(struct adapter *); 383 384 #endif /* __T4VF_COMMON_H__ */ 385