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 */ 49struct 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 */ 79struct 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 90enum { 91 PAUSE_RX = 1 << 0, 92 PAUSE_TX = 1 << 1, 93 PAUSE_AUTONEG = 1 << 2 94}; 95 96/* 97 * General device parameters ... 98 */ 99struct 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 */ 109struct 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 */ 124struct vpd_params { 125 u32 cclk; /* Core Clock (KHz) */ 126}; 127 128/* 129 * Global Receive Side Scaling (RSS) parameters in host-native format. 130 */ 131struct 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 */ 151union 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 */ 165struct 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 */ 181struct 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 199static inline bool is_10g_port(const struct link_config *lc) 200{ 201 return (lc->supported & SUPPORTED_10000baseT_Full) != 0; 202} 203 204static inline unsigned int core_ticks_per_usec(const struct adapter *adapter) 205{ 206 return adapter->params.vpd.cclk / 1000; 207} 208 209static 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 215static 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 221int t4vf_wr_mbox_core(struct adapter *, const void *, int, void *, bool); 222 223static 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 229static 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 235int __devinit t4vf_wait_dev_ready(struct adapter *); 236int __devinit t4vf_port_init(struct adapter *, int); 237 238int t4vf_query_params(struct adapter *, unsigned int, const u32 *, u32 *); 239int t4vf_set_params(struct adapter *, unsigned int, const u32 *, const u32 *); 240 241int t4vf_get_sge_params(struct adapter *); 242int t4vf_get_vpd_params(struct adapter *); 243int t4vf_get_dev_params(struct adapter *); 244int t4vf_get_rss_glb_config(struct adapter *); 245int t4vf_get_vfres(struct adapter *); 246 247int t4vf_read_rss_vi_config(struct adapter *, unsigned int, 248 union rss_vi_config *); 249int t4vf_write_rss_vi_config(struct adapter *, unsigned int, 250 union rss_vi_config *); 251int t4vf_config_rss_range(struct adapter *, unsigned int, int, int, 252 const u16 *, int); 253 254int t4vf_alloc_vi(struct adapter *, int); 255int t4vf_free_vi(struct adapter *, int); 256int t4vf_enable_vi(struct adapter *, unsigned int, bool, bool); 257int t4vf_identify_port(struct adapter *, unsigned int, unsigned int); 258 259int t4vf_set_rxmode(struct adapter *, unsigned int, int, int, int, int, int, 260 bool); 261int t4vf_alloc_mac_filt(struct adapter *, unsigned int, bool, unsigned int, 262 const u8 **, u16 *, u64 *, bool); 263int t4vf_change_mac(struct adapter *, unsigned int, int, const u8 *, bool); 264int t4vf_set_addr_hash(struct adapter *, unsigned int, bool, u64, bool); 265int t4vf_get_port_stats(struct adapter *, int, struct t4vf_port_stats *); 266 267int t4vf_iq_free(struct adapter *, unsigned int, unsigned int, unsigned int, 268 unsigned int); 269int t4vf_eth_eq_free(struct adapter *, unsigned int); 270 271int t4vf_handle_fw_rpl(struct adapter *, const __be64 *); 272 273#endif /* __T4VF_COMMON_H__ */ 274