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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 two7 * licenses. You may choose to be licensed under the terms of the GNU8 * General Public License (GPL) Version 2, available from the file9 * COPYING in the main directory of this source tree, or the10 * OpenIB.org BSD license below:11 *12 * Redistribution and use in source and binary forms, with or13 * without modification, are permitted provided that the following14 * conditions are met:15 *16 * - Redistributions of source code must retain the above17 * copyright notice, this list of conditions and the following18 * disclaimer.19 *20 * - Redistributions in binary form must reproduce the above21 * copyright notice, this list of conditions and the following22 * disclaimer in the documentation and/or other materials23 * 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 OF27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE32 * 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 48struct 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 866#define CSIO_MAX_MB_SIZE 6467#define CSIO_MB_POLL_FREQ 5 /* 5 ms */68#define CSIO_MB_DEFAULT_TMO FW_CMD_MAX_TIMEOUT69 70/* Device master in HELLO command */71enum csio_dev_master { CSIO_MASTER_CANT, CSIO_MASTER_MAY, CSIO_MASTER_MUST };72 73enum csio_mb_owner { CSIO_MBOWNER_NONE, CSIO_MBOWNER_FW, CSIO_MBOWNER_PL };74 75enum csio_dev_state {76 CSIO_DEV_STATE_UNINIT,77 CSIO_DEV_STATE_INIT,78 CSIO_DEV_STATE_ERR79};80 81#define FW_PARAM_DEV(param) \82 (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) | \83 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_##param))84 85#define FW_PARAM_PFVF(param) \86 (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_PFVF) | \87 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_PFVF_##param)| \88 FW_PARAMS_PARAM_Y_V(0) | \89 FW_PARAMS_PARAM_Z_V(0))90 91#define CSIO_INIT_MBP(__mbp, __cp, __tmo, __priv, __fn, __clear) \92do { \93 if (__clear) \94 memset((__cp), 0, \95 CSIO_MB_MAX_REGS * sizeof(__be64)); \96 INIT_LIST_HEAD(&(__mbp)->list); \97 (__mbp)->tmo = (__tmo); \98 (__mbp)->priv = (void *)(__priv); \99 (__mbp)->mb_cbfn = (__fn); \100 (__mbp)->mb_size = sizeof(*(__cp)); \101} while (0)102 103struct csio_mbm_stats {104 uint32_t n_req; /* number of mbox req */105 uint32_t n_rsp; /* number of mbox rsp */106 uint32_t n_activeq; /* number of mbox req active Q */107 uint32_t n_cbfnq; /* number of mbox req cbfn Q */108 uint32_t n_tmo; /* number of mbox timeout */109 uint32_t n_cancel; /* number of mbox cancel */110 uint32_t n_err; /* number of mbox error */111};112 113/* Driver version of Mailbox */114struct csio_mb {115 struct list_head list; /* for req/resp */116 /* queue in driver */117 __be64 mb[CSIO_MB_MAX_REGS]; /* MB in HW format */118 int mb_size; /* Size of this119 * mailbox.120 */121 uint32_t tmo; /* Timeout */122 struct completion cmplobj; /* MB Completion123 * object124 */125 void (*mb_cbfn) (struct csio_hw *, struct csio_mb *);126 /* Callback fn */127 void *priv; /* Owner private ptr */128};129 130struct csio_mbm {131 uint32_t a_mbox; /* Async mbox num */132 uint32_t intr_idx; /* Interrupt index */133 struct timer_list timer; /* Mbox timer */134 struct csio_hw *hw; /* Hardware pointer */135 struct list_head req_q; /* Mbox request queue */136 struct list_head cbfn_q; /* Mbox completion q */137 struct csio_mb *mcurrent; /* Current mailbox */138 uint32_t req_q_cnt; /* Outstanding mbox139 * cmds140 */141 struct csio_mbm_stats stats; /* Statistics */142};143 144#define csio_set_mb_intr_idx(_m, _i) ((_m)->intr_idx = (_i))145#define csio_get_mb_intr_idx(_m) ((_m)->intr_idx)146 147struct csio_iq_params;148struct csio_eq_params;149 150enum fw_retval csio_mb_fw_retval(struct csio_mb *);151 152/* MB helpers */153void csio_mb_hello(struct csio_hw *, struct csio_mb *, uint32_t,154 uint32_t, uint32_t, enum csio_dev_master,155 void (*)(struct csio_hw *, struct csio_mb *));156 157void csio_mb_process_hello_rsp(struct csio_hw *, struct csio_mb *,158 enum fw_retval *, enum csio_dev_state *,159 uint8_t *);160 161void csio_mb_bye(struct csio_hw *, struct csio_mb *, uint32_t,162 void (*)(struct csio_hw *, struct csio_mb *));163 164void csio_mb_reset(struct csio_hw *, struct csio_mb *, uint32_t, int, int,165 void (*)(struct csio_hw *, struct csio_mb *));166 167void csio_mb_params(struct csio_hw *, struct csio_mb *, uint32_t, unsigned int,168 unsigned int, unsigned int, const u32 *, u32 *, bool,169 void (*)(struct csio_hw *, struct csio_mb *));170 171void csio_mb_process_read_params_rsp(struct csio_hw *, struct csio_mb *,172 enum fw_retval *, unsigned int , u32 *);173 174void csio_mb_ldst(struct csio_hw *hw, struct csio_mb *mbp, uint32_t tmo,175 int reg);176 177void csio_mb_caps_config(struct csio_hw *, struct csio_mb *, uint32_t,178 bool, bool, bool, bool,179 void (*)(struct csio_hw *, struct csio_mb *));180 181void csio_mb_port(struct csio_hw *, struct csio_mb *, uint32_t,182 uint8_t, bool, uint32_t, uint16_t,183 void (*) (struct csio_hw *, struct csio_mb *));184 185void csio_mb_process_read_port_rsp(struct csio_hw *, struct csio_mb *,186 enum fw_retval *, uint16_t,187 uint32_t *, uint32_t *);188 189void csio_mb_initialize(struct csio_hw *, struct csio_mb *, uint32_t,190 void (*)(struct csio_hw *, struct csio_mb *));191 192void csio_mb_iq_alloc_write(struct csio_hw *, struct csio_mb *, void *,193 uint32_t, struct csio_iq_params *,194 void (*) (struct csio_hw *, struct csio_mb *));195 196void csio_mb_iq_alloc_write_rsp(struct csio_hw *, struct csio_mb *,197 enum fw_retval *, struct csio_iq_params *);198 199void csio_mb_iq_free(struct csio_hw *, struct csio_mb *, void *,200 uint32_t, struct csio_iq_params *,201 void (*) (struct csio_hw *, struct csio_mb *));202 203void csio_mb_eq_ofld_alloc_write(struct csio_hw *, struct csio_mb *, void *,204 uint32_t, struct csio_eq_params *,205 void (*) (struct csio_hw *, struct csio_mb *));206 207void csio_mb_eq_ofld_alloc_write_rsp(struct csio_hw *, struct csio_mb *,208 enum fw_retval *, struct csio_eq_params *);209 210void csio_mb_eq_ofld_free(struct csio_hw *, struct csio_mb *, void *,211 uint32_t , struct csio_eq_params *,212 void (*) (struct csio_hw *, struct csio_mb *));213 214void csio_fcoe_read_res_info_init_mb(struct csio_hw *, struct csio_mb *,215 uint32_t,216 void (*) (struct csio_hw *, struct csio_mb *));217 218void csio_write_fcoe_link_cond_init_mb(struct csio_lnode *, struct csio_mb *,219 uint32_t, uint8_t, uint32_t, uint8_t, bool, uint32_t,220 void (*) (struct csio_hw *, struct csio_mb *));221 222void csio_fcoe_vnp_alloc_init_mb(struct csio_lnode *, struct csio_mb *,223 uint32_t, uint32_t , uint32_t , uint16_t,224 uint8_t [8], uint8_t [8],225 void (*) (struct csio_hw *, struct csio_mb *));226 227void csio_fcoe_vnp_read_init_mb(struct csio_lnode *, struct csio_mb *,228 uint32_t, uint32_t , uint32_t ,229 void (*) (struct csio_hw *, struct csio_mb *));230 231void csio_fcoe_vnp_free_init_mb(struct csio_lnode *, struct csio_mb *,232 uint32_t , uint32_t, uint32_t ,233 void (*) (struct csio_hw *, struct csio_mb *));234 235void csio_fcoe_read_fcf_init_mb(struct csio_lnode *, struct csio_mb *,236 uint32_t, uint32_t, uint32_t,237 void (*cbfn) (struct csio_hw *, struct csio_mb *));238 239void csio_fcoe_read_portparams_init_mb(struct csio_hw *hw,240 struct csio_mb *mbp, uint32_t mb_tmo,241 struct fw_fcoe_port_cmd_params *portparams,242 void (*cbfn)(struct csio_hw *, struct csio_mb *));243 244void csio_mb_process_portparams_rsp(struct csio_hw *hw, struct csio_mb *mbp,245 enum fw_retval *retval,246 struct fw_fcoe_port_cmd_params *portparams,247 struct fw_fcoe_port_stats *portstats);248 249/* MB module functions */250int csio_mbm_init(struct csio_mbm *, struct csio_hw *,251 void (*)(struct timer_list *));252void csio_mbm_exit(struct csio_mbm *);253void csio_mb_intr_enable(struct csio_hw *);254void csio_mb_intr_disable(struct csio_hw *);255 256int csio_mb_issue(struct csio_hw *, struct csio_mb *);257void csio_mb_completions(struct csio_hw *, struct list_head *);258int csio_mb_fwevt_handler(struct csio_hw *, __be64 *);259int csio_mb_isr_handler(struct csio_hw *);260struct csio_mb *csio_mb_tmo_handler(struct csio_hw *);261void csio_mb_cancel_all(struct csio_hw *, struct list_head *);262 263#endif /* ifndef __CSIO_MB_H__ */264