Naresh Kumar Inna | a3667aa | 2012-11-15 22:41:18 +0530 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the Chelsio FCoE driver for Linux. |
| 3 | * |
| 4 | * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved. |
| 5 | * |
| 6 | * This software is available to you under a choice of one of two |
| 7 | * licenses. You may choose to be licensed under the terms of the GNU |
| 8 | * General Public License (GPL) Version 2, available from the file |
| 9 | * COPYING in the main directory of this source tree, or the |
| 10 | * OpenIB.org BSD license below: |
| 11 | * |
| 12 | * Redistribution and use in source and binary forms, with or |
| 13 | * without modification, are permitted provided that the following |
| 14 | * conditions are met: |
| 15 | * |
| 16 | * - Redistributions of source code must retain the above |
| 17 | * copyright notice, this list of conditions and the following |
| 18 | * disclaimer. |
| 19 | * |
| 20 | * - Redistributions in binary form must reproduce the above |
| 21 | * copyright notice, this list of conditions and the following |
| 22 | * disclaimer in the documentation and/or other materials |
| 23 | * provided with the distribution. |
| 24 | * |
| 25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 32 | * SOFTWARE. |
| 33 | */ |
| 34 | |
| 35 | #ifndef __CSIO_MB_H__ |
| 36 | #define __CSIO_MB_H__ |
| 37 | |
| 38 | #include <linux/timer.h> |
| 39 | #include <linux/completion.h> |
| 40 | |
| 41 | #include "t4fw_api.h" |
| 42 | #include "t4fw_api_stor.h" |
| 43 | #include "csio_defs.h" |
| 44 | |
| 45 | #define CSIO_STATS_OFFSET (2) |
| 46 | #define CSIO_NUM_STATS_PER_MB (6) |
| 47 | |
| 48 | struct fw_fcoe_port_cmd_params { |
| 49 | uint8_t portid; |
| 50 | uint8_t idx; |
| 51 | uint8_t nstats; |
| 52 | }; |
| 53 | |
| 54 | #define CSIO_DUMP_MB(__hw, __num, __mb) \ |
| 55 | csio_dbg(__hw, "\t%llx %llx %llx %llx %llx %llx %llx %llx\n", \ |
| 56 | (unsigned long long)csio_rd_reg64(__hw, __mb), \ |
| 57 | (unsigned long long)csio_rd_reg64(__hw, __mb + 8), \ |
| 58 | (unsigned long long)csio_rd_reg64(__hw, __mb + 16), \ |
| 59 | (unsigned long long)csio_rd_reg64(__hw, __mb + 24), \ |
| 60 | (unsigned long long)csio_rd_reg64(__hw, __mb + 32), \ |
| 61 | (unsigned long long)csio_rd_reg64(__hw, __mb + 40), \ |
| 62 | (unsigned long long)csio_rd_reg64(__hw, __mb + 48), \ |
| 63 | (unsigned long long)csio_rd_reg64(__hw, __mb + 56)) |
| 64 | |
| 65 | #define CSIO_MB_MAX_REGS 8 |
| 66 | #define CSIO_MAX_MB_SIZE 64 |
| 67 | #define CSIO_MB_POLL_FREQ 5 /* 5 ms */ |
| 68 | #define CSIO_MB_DEFAULT_TMO FW_CMD_MAX_TIMEOUT |
| 69 | |
| 70 | /* Device master in HELLO command */ |
| 71 | enum csio_dev_master { CSIO_MASTER_CANT, CSIO_MASTER_MAY, CSIO_MASTER_MUST }; |
| 72 | |
| 73 | enum csio_mb_owner { CSIO_MBOWNER_NONE, CSIO_MBOWNER_FW, CSIO_MBOWNER_PL }; |
| 74 | |
| 75 | enum csio_dev_state { |
| 76 | CSIO_DEV_STATE_UNINIT, |
| 77 | CSIO_DEV_STATE_INIT, |
| 78 | CSIO_DEV_STATE_ERR |
| 79 | }; |
| 80 | |
| 81 | #define FW_PARAM_DEV(param) \ |
| 82 | (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \ |
| 83 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param)) |
| 84 | |
| 85 | #define FW_PARAM_PFVF(param) \ |
| 86 | (FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \ |
| 87 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param)| \ |
| 88 | FW_PARAMS_PARAM_Y(0) | \ |
| 89 | FW_PARAMS_PARAM_Z(0)) |
| 90 | |
| 91 | enum { |
| 92 | PAUSE_RX = 1 << 0, |
| 93 | PAUSE_TX = 1 << 1, |
| 94 | PAUSE_AUTONEG = 1 << 2 |
| 95 | }; |
| 96 | |
| 97 | #define CSIO_INIT_MBP(__mbp, __cp, __tmo, __priv, __fn, __clear) \ |
| 98 | do { \ |
| 99 | if (__clear) \ |
| 100 | memset((__cp), 0, \ |
| 101 | CSIO_MB_MAX_REGS * sizeof(__be64)); \ |
| 102 | INIT_LIST_HEAD(&(__mbp)->list); \ |
| 103 | (__mbp)->tmo = (__tmo); \ |
| 104 | (__mbp)->priv = (void *)(__priv); \ |
| 105 | (__mbp)->mb_cbfn = (__fn); \ |
| 106 | (__mbp)->mb_size = sizeof(*(__cp)); \ |
| 107 | } while (0) |
| 108 | |
| 109 | struct csio_mbm_stats { |
| 110 | uint32_t n_req; /* number of mbox req */ |
| 111 | uint32_t n_rsp; /* number of mbox rsp */ |
| 112 | uint32_t n_activeq; /* number of mbox req active Q */ |
| 113 | uint32_t n_cbfnq; /* number of mbox req cbfn Q */ |
| 114 | uint32_t n_tmo; /* number of mbox timeout */ |
| 115 | uint32_t n_cancel; /* number of mbox cancel */ |
| 116 | uint32_t n_err; /* number of mbox error */ |
| 117 | }; |
| 118 | |
| 119 | /* Driver version of Mailbox */ |
| 120 | struct csio_mb { |
| 121 | struct list_head list; /* for req/resp */ |
| 122 | /* queue in driver */ |
| 123 | __be64 mb[CSIO_MB_MAX_REGS]; /* MB in HW format */ |
| 124 | int mb_size; /* Size of this |
| 125 | * mailbox. |
| 126 | */ |
| 127 | uint32_t tmo; /* Timeout */ |
| 128 | struct completion cmplobj; /* MB Completion |
| 129 | * object |
| 130 | */ |
| 131 | void (*mb_cbfn) (struct csio_hw *, struct csio_mb *); |
| 132 | /* Callback fn */ |
| 133 | void *priv; /* Owner private ptr */ |
| 134 | }; |
| 135 | |
| 136 | struct csio_mbm { |
| 137 | uint32_t a_mbox; /* Async mbox num */ |
| 138 | uint32_t intr_idx; /* Interrupt index */ |
| 139 | struct timer_list timer; /* Mbox timer */ |
| 140 | struct list_head req_q; /* Mbox request queue */ |
| 141 | struct list_head cbfn_q; /* Mbox completion q */ |
| 142 | struct csio_mb *mcurrent; /* Current mailbox */ |
| 143 | uint32_t req_q_cnt; /* Outstanding mbox |
| 144 | * cmds |
| 145 | */ |
| 146 | struct csio_mbm_stats stats; /* Statistics */ |
| 147 | }; |
| 148 | |
| 149 | #define csio_set_mb_intr_idx(_m, _i) ((_m)->intr_idx = (_i)) |
| 150 | #define csio_get_mb_intr_idx(_m) ((_m)->intr_idx) |
| 151 | |
| 152 | struct csio_iq_params; |
| 153 | struct csio_eq_params; |
| 154 | |
| 155 | enum fw_retval csio_mb_fw_retval(struct csio_mb *); |
| 156 | |
| 157 | /* MB helpers */ |
| 158 | void csio_mb_hello(struct csio_hw *, struct csio_mb *, uint32_t, |
| 159 | uint32_t, uint32_t, enum csio_dev_master, |
| 160 | void (*)(struct csio_hw *, struct csio_mb *)); |
| 161 | |
| 162 | void csio_mb_process_hello_rsp(struct csio_hw *, struct csio_mb *, |
| 163 | enum fw_retval *, enum csio_dev_state *, |
| 164 | uint8_t *); |
| 165 | |
| 166 | void csio_mb_bye(struct csio_hw *, struct csio_mb *, uint32_t, |
| 167 | void (*)(struct csio_hw *, struct csio_mb *)); |
| 168 | |
| 169 | void csio_mb_reset(struct csio_hw *, struct csio_mb *, uint32_t, int, int, |
| 170 | void (*)(struct csio_hw *, struct csio_mb *)); |
| 171 | |
| 172 | void csio_mb_params(struct csio_hw *, struct csio_mb *, uint32_t, unsigned int, |
| 173 | unsigned int, unsigned int, const u32 *, u32 *, bool, |
| 174 | void (*)(struct csio_hw *, struct csio_mb *)); |
| 175 | |
| 176 | void csio_mb_process_read_params_rsp(struct csio_hw *, struct csio_mb *, |
| 177 | enum fw_retval *, unsigned int , u32 *); |
| 178 | |
| 179 | void csio_mb_ldst(struct csio_hw *hw, struct csio_mb *mbp, uint32_t tmo, |
| 180 | int reg); |
| 181 | |
| 182 | void csio_mb_caps_config(struct csio_hw *, struct csio_mb *, uint32_t, |
| 183 | bool, bool, bool, bool, |
| 184 | void (*)(struct csio_hw *, struct csio_mb *)); |
| 185 | |
| 186 | void csio_rss_glb_config(struct csio_hw *, struct csio_mb *, |
| 187 | uint32_t, uint8_t, unsigned int, |
| 188 | void (*)(struct csio_hw *, struct csio_mb *)); |
| 189 | |
| 190 | void csio_mb_pfvf(struct csio_hw *, struct csio_mb *, uint32_t, |
| 191 | unsigned int, unsigned int, unsigned int, |
| 192 | unsigned int, unsigned int, unsigned int, |
| 193 | unsigned int, unsigned int, unsigned int, |
| 194 | unsigned int, unsigned int, unsigned int, |
| 195 | unsigned int, void (*) (struct csio_hw *, struct csio_mb *)); |
| 196 | |
| 197 | void csio_mb_port(struct csio_hw *, struct csio_mb *, uint32_t, |
| 198 | uint8_t, bool, uint32_t, uint16_t, |
| 199 | void (*) (struct csio_hw *, struct csio_mb *)); |
| 200 | |
| 201 | void csio_mb_process_read_port_rsp(struct csio_hw *, struct csio_mb *, |
| 202 | enum fw_retval *, uint16_t *); |
| 203 | |
| 204 | void csio_mb_initialize(struct csio_hw *, struct csio_mb *, uint32_t, |
| 205 | void (*)(struct csio_hw *, struct csio_mb *)); |
| 206 | |
| 207 | void csio_mb_iq_alloc_write(struct csio_hw *, struct csio_mb *, void *, |
| 208 | uint32_t, struct csio_iq_params *, |
| 209 | void (*) (struct csio_hw *, struct csio_mb *)); |
| 210 | |
| 211 | void csio_mb_iq_alloc_write_rsp(struct csio_hw *, struct csio_mb *, |
| 212 | enum fw_retval *, struct csio_iq_params *); |
| 213 | |
| 214 | void csio_mb_iq_free(struct csio_hw *, struct csio_mb *, void *, |
| 215 | uint32_t, struct csio_iq_params *, |
| 216 | void (*) (struct csio_hw *, struct csio_mb *)); |
| 217 | |
| 218 | void csio_mb_eq_ofld_alloc_write(struct csio_hw *, struct csio_mb *, void *, |
| 219 | uint32_t, struct csio_eq_params *, |
| 220 | void (*) (struct csio_hw *, struct csio_mb *)); |
| 221 | |
| 222 | void csio_mb_eq_ofld_alloc_write_rsp(struct csio_hw *, struct csio_mb *, |
| 223 | enum fw_retval *, struct csio_eq_params *); |
| 224 | |
| 225 | void csio_mb_eq_ofld_free(struct csio_hw *, struct csio_mb *, void *, |
| 226 | uint32_t , struct csio_eq_params *, |
| 227 | void (*) (struct csio_hw *, struct csio_mb *)); |
| 228 | |
| 229 | void csio_fcoe_read_res_info_init_mb(struct csio_hw *, struct csio_mb *, |
| 230 | uint32_t, |
| 231 | void (*) (struct csio_hw *, struct csio_mb *)); |
| 232 | |
| 233 | void csio_write_fcoe_link_cond_init_mb(struct csio_lnode *, struct csio_mb *, |
| 234 | uint32_t, uint8_t, uint32_t, uint8_t, bool, uint32_t, |
| 235 | void (*) (struct csio_hw *, struct csio_mb *)); |
| 236 | |
| 237 | void csio_fcoe_vnp_alloc_init_mb(struct csio_lnode *, struct csio_mb *, |
| 238 | uint32_t, uint32_t , uint32_t , uint16_t, |
| 239 | uint8_t [8], uint8_t [8], |
| 240 | void (*) (struct csio_hw *, struct csio_mb *)); |
| 241 | |
| 242 | void csio_fcoe_vnp_read_init_mb(struct csio_lnode *, struct csio_mb *, |
| 243 | uint32_t, uint32_t , uint32_t , |
| 244 | void (*) (struct csio_hw *, struct csio_mb *)); |
| 245 | |
| 246 | void csio_fcoe_vnp_free_init_mb(struct csio_lnode *, struct csio_mb *, |
| 247 | uint32_t , uint32_t, uint32_t , |
| 248 | void (*) (struct csio_hw *, struct csio_mb *)); |
| 249 | |
| 250 | void csio_fcoe_read_fcf_init_mb(struct csio_lnode *, struct csio_mb *, |
| 251 | uint32_t, uint32_t, uint32_t, |
| 252 | void (*cbfn) (struct csio_hw *, struct csio_mb *)); |
| 253 | |
| 254 | void csio_fcoe_read_portparams_init_mb(struct csio_hw *hw, |
| 255 | struct csio_mb *mbp, uint32_t mb_tmo, |
| 256 | struct fw_fcoe_port_cmd_params *portparams, |
| 257 | void (*cbfn)(struct csio_hw *, struct csio_mb *)); |
| 258 | |
| 259 | void csio_mb_process_portparams_rsp(struct csio_hw *hw, struct csio_mb *mbp, |
| 260 | enum fw_retval *retval, |
| 261 | struct fw_fcoe_port_cmd_params *portparams, |
| 262 | struct fw_fcoe_port_stats *portstats); |
| 263 | |
| 264 | /* MB module functions */ |
| 265 | int csio_mbm_init(struct csio_mbm *, struct csio_hw *, |
| 266 | void (*)(uintptr_t)); |
| 267 | void csio_mbm_exit(struct csio_mbm *); |
| 268 | void csio_mb_intr_enable(struct csio_hw *); |
| 269 | void csio_mb_intr_disable(struct csio_hw *); |
| 270 | |
| 271 | int csio_mb_issue(struct csio_hw *, struct csio_mb *); |
| 272 | void csio_mb_completions(struct csio_hw *, struct list_head *); |
| 273 | int csio_mb_fwevt_handler(struct csio_hw *, __be64 *); |
| 274 | int csio_mb_isr_handler(struct csio_hw *); |
| 275 | struct csio_mb *csio_mb_tmo_handler(struct csio_hw *); |
| 276 | void csio_mb_cancel_all(struct csio_hw *, struct list_head *); |
| 277 | |
| 278 | #endif /* ifndef __CSIO_MB_H__ */ |