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) 43 #define CHELSIO_CHIP_RELEASE(code) ((code) & 0xf) 44 45 #define CHELSIO_T4 0x4 46 #define CHELSIO_T5 0x5 47 48 enum chip_type { 49 T4_A1 = CHELSIO_CHIP_CODE(CHELSIO_T4, 0), 50 T4_A2 = CHELSIO_CHIP_CODE(CHELSIO_T4, 1), 51 T4_A3 = CHELSIO_CHIP_CODE(CHELSIO_T4, 2), 52 T4_FIRST_REV = T4_A1, 53 T4_LAST_REV = T4_A3, 54 55 T5_A1 = CHELSIO_CHIP_CODE(CHELSIO_T5, 0), 56 T5_FIRST_REV = T5_A1, 57 T5_LAST_REV = T5_A1, 58 }; 59 60 /* 61 * The "len16" field of a Firmware Command Structure ... 62 */ 63 #define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16) 64 65 /* 66 * Per-VF statistics. 67 */ 68 struct t4vf_port_stats { 69 /* 70 * TX statistics. 71 */ 72 u64 tx_bcast_bytes; /* broadcast */ 73 u64 tx_bcast_frames; 74 u64 tx_mcast_bytes; /* multicast */ 75 u64 tx_mcast_frames; 76 u64 tx_ucast_bytes; /* unicast */ 77 u64 tx_ucast_frames; 78 u64 tx_drop_frames; /* TX dropped frames */ 79 u64 tx_offload_bytes; /* offload */ 80 u64 tx_offload_frames; 81 82 /* 83 * RX statistics. 84 */ 85 u64 rx_bcast_bytes; /* broadcast */ 86 u64 rx_bcast_frames; 87 u64 rx_mcast_bytes; /* multicast */ 88 u64 rx_mcast_frames; 89 u64 rx_ucast_bytes; 90 u64 rx_ucast_frames; /* unicast */ 91 92 u64 rx_err_frames; /* RX error frames */ 93 }; 94 95 /* 96 * Per-"port" (Virtual Interface) link configuration ... 97 */ 98 struct link_config { 99 unsigned int supported; /* link capabilities */ 100 unsigned int advertising; /* advertised capabilities */ 101 unsigned short requested_speed; /* speed user has requested */ 102 unsigned short speed; /* actual link speed */ 103 unsigned char requested_fc; /* flow control user has requested */ 104 unsigned char fc; /* actual link flow control */ 105 unsigned char autoneg; /* autonegotiating? */ 106 unsigned char link_ok; /* link up? */ 107 }; 108 109 enum { 110 PAUSE_RX = 1 << 0, 111 PAUSE_TX = 1 << 1, 112 PAUSE_AUTONEG = 1 << 2 113 }; 114 115 /* 116 * General device parameters ... 117 */ 118 struct dev_params { 119 u32 fwrev; /* firmware version */ 120 u32 tprev; /* TP Microcode Version */ 121 }; 122 123 /* 124 * Scatter Gather Engine parameters. These are almost all determined by the 125 * Physical Function Driver. We just need to grab them to see within which 126 * environment we're playing ... 127 */ 128 struct sge_params { 129 u32 sge_control; /* padding, boundaries, lengths, etc. */ 130 u32 sge_host_page_size; /* RDMA page sizes */ 131 u32 sge_queues_per_page; /* RDMA queues/page */ 132 u32 sge_user_mode_limits; /* limits for BAR2 user mode accesses */ 133 u32 sge_fl_buffer_size[16]; /* free list buffer sizes */ 134 u32 sge_ingress_rx_threshold; /* RX counter interrupt threshold[4] */ 135 u32 sge_timer_value_0_and_1; /* interrupt coalescing timer values */ 136 u32 sge_timer_value_2_and_3; 137 u32 sge_timer_value_4_and_5; 138 }; 139 140 /* 141 * Vital Product Data parameters. 142 */ 143 struct vpd_params { 144 u32 cclk; /* Core Clock (KHz) */ 145 }; 146 147 /* 148 * Global Receive Side Scaling (RSS) parameters in host-native format. 149 */ 150 struct rss_params { 151 unsigned int mode; /* RSS mode */ 152 union { 153 struct { 154 unsigned int synmapen:1; /* SYN Map Enable */ 155 unsigned int syn4tupenipv6:1; /* enable hashing 4-tuple IPv6 SYNs */ 156 unsigned int syn2tupenipv6:1; /* enable hashing 2-tuple IPv6 SYNs */ 157 unsigned int syn4tupenipv4:1; /* enable hashing 4-tuple IPv4 SYNs */ 158 unsigned int syn2tupenipv4:1; /* enable hashing 2-tuple IPv4 SYNs */ 159 unsigned int ofdmapen:1; /* Offload Map Enable */ 160 unsigned int tnlmapen:1; /* Tunnel Map Enable */ 161 unsigned int tnlalllookup:1; /* Tunnel All Lookup */ 162 unsigned int hashtoeplitz:1; /* use Toeplitz hash */ 163 } basicvirtual; 164 } u; 165 }; 166 167 /* 168 * Virtual Interface RSS Configuration in host-native format. 169 */ 170 union rss_vi_config { 171 struct { 172 u16 defaultq; /* Ingress Queue ID for !tnlalllookup */ 173 unsigned int ip6fourtupen:1; /* hash 4-tuple IPv6 ingress packets */ 174 unsigned int ip6twotupen:1; /* hash 2-tuple IPv6 ingress packets */ 175 unsigned int ip4fourtupen:1; /* hash 4-tuple IPv4 ingress packets */ 176 unsigned int ip4twotupen:1; /* hash 2-tuple IPv4 ingress packets */ 177 int udpen; /* hash 4-tuple UDP ingress packets */ 178 } basicvirtual; 179 }; 180 181 /* 182 * Maximum resources provisioned for a PCI VF. 183 */ 184 struct vf_resources { 185 unsigned int nvi; /* N virtual interfaces */ 186 unsigned int neq; /* N egress Qs */ 187 unsigned int nethctrl; /* N egress ETH or CTRL Qs */ 188 unsigned int niqflint; /* N ingress Qs/w free list(s) & intr */ 189 unsigned int niq; /* N ingress Qs */ 190 unsigned int tc; /* PCI-E traffic class */ 191 unsigned int pmask; /* port access rights mask */ 192 unsigned int nexactf; /* N exact MPS filters */ 193 unsigned int r_caps; /* read capabilities */ 194 unsigned int wx_caps; /* write/execute capabilities */ 195 }; 196 197 /* 198 * Per-"adapter" (Virtual Function) parameters. 199 */ 200 struct adapter_params { 201 struct dev_params dev; /* general device parameters */ 202 struct sge_params sge; /* Scatter Gather Engine */ 203 struct vpd_params vpd; /* Vital Product Data */ 204 struct rss_params rss; /* Receive Side Scaling */ 205 struct vf_resources vfres; /* Virtual Function Resource limits */ 206 u8 nports; /* # of Ethernet "ports" */ 207 }; 208 209 #include "adapter.h" 210 211 #ifndef PCI_VENDOR_ID_CHELSIO 212 # define PCI_VENDOR_ID_CHELSIO 0x1425 213 #endif 214 215 #define for_each_port(adapter, iter) \ 216 for (iter = 0; iter < (adapter)->params.nports; iter++) 217 218 static inline bool is_10g_port(const struct link_config *lc) 219 { 220 return (lc->supported & SUPPORTED_10000baseT_Full) != 0; 221 } 222 223 static inline unsigned int core_ticks_per_usec(const struct adapter *adapter) 224 { 225 return adapter->params.vpd.cclk / 1000; 226 } 227 228 static inline unsigned int us_to_core_ticks(const struct adapter *adapter, 229 unsigned int us) 230 { 231 return (us * adapter->params.vpd.cclk) / 1000; 232 } 233 234 static inline unsigned int core_ticks_to_us(const struct adapter *adapter, 235 unsigned int ticks) 236 { 237 return (ticks * 1000) / adapter->params.vpd.cclk; 238 } 239 240 int t4vf_wr_mbox_core(struct adapter *, const void *, int, void *, bool); 241 242 static inline int t4vf_wr_mbox(struct adapter *adapter, const void *cmd, 243 int size, void *rpl) 244 { 245 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, true); 246 } 247 248 static inline int t4vf_wr_mbox_ns(struct adapter *adapter, const void *cmd, 249 int size, void *rpl) 250 { 251 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, false); 252 } 253 254 static inline int is_t4(enum chip_type chip) 255 { 256 return (chip >= T4_FIRST_REV && chip <= T4_LAST_REV); 257 } 258 259 int t4vf_wait_dev_ready(struct adapter *); 260 int t4vf_port_init(struct adapter *, int); 261 262 int t4vf_fw_reset(struct adapter *); 263 int t4vf_query_params(struct adapter *, unsigned int, const u32 *, u32 *); 264 int t4vf_set_params(struct adapter *, unsigned int, const u32 *, const u32 *); 265 266 int t4vf_get_sge_params(struct adapter *); 267 int t4vf_get_vpd_params(struct adapter *); 268 int t4vf_get_dev_params(struct adapter *); 269 int t4vf_get_rss_glb_config(struct adapter *); 270 int t4vf_get_vfres(struct adapter *); 271 272 int t4vf_read_rss_vi_config(struct adapter *, unsigned int, 273 union rss_vi_config *); 274 int t4vf_write_rss_vi_config(struct adapter *, unsigned int, 275 union rss_vi_config *); 276 int t4vf_config_rss_range(struct adapter *, unsigned int, int, int, 277 const u16 *, int); 278 279 int t4vf_alloc_vi(struct adapter *, int); 280 int t4vf_free_vi(struct adapter *, int); 281 int t4vf_enable_vi(struct adapter *, unsigned int, bool, bool); 282 int t4vf_identify_port(struct adapter *, unsigned int, unsigned int); 283 284 int t4vf_set_rxmode(struct adapter *, unsigned int, int, int, int, int, int, 285 bool); 286 int t4vf_alloc_mac_filt(struct adapter *, unsigned int, bool, unsigned int, 287 const u8 **, u16 *, u64 *, bool); 288 int t4vf_change_mac(struct adapter *, unsigned int, int, const u8 *, bool); 289 int t4vf_set_addr_hash(struct adapter *, unsigned int, bool, u64, bool); 290 int t4vf_get_port_stats(struct adapter *, int, struct t4vf_port_stats *); 291 292 int t4vf_iq_free(struct adapter *, unsigned int, unsigned int, unsigned int, 293 unsigned int); 294 int t4vf_eth_eq_free(struct adapter *, unsigned int); 295 296 int t4vf_handle_fw_rpl(struct adapter *, const __be64 *); 297 298 #endif /* __T4VF_COMMON_H__ */ 299