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linux-sg2042/drivers/scsi/csiostor/csio_mb.h

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/*
* This file is part of the Chelsio FCoE driver for Linux.
*
* Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __CSIO_MB_H__
#define __CSIO_MB_H__
#include <linux/timer.h>
#include <linux/completion.h>
#include "t4fw_api.h"
#include "t4fw_api_stor.h"
#include "csio_defs.h"
#define CSIO_STATS_OFFSET (2)
#define CSIO_NUM_STATS_PER_MB (6)
struct fw_fcoe_port_cmd_params {
uint8_t portid;
uint8_t idx;
uint8_t nstats;
};
#define CSIO_DUMP_MB(__hw, __num, __mb) \
csio_dbg(__hw, "\t%llx %llx %llx %llx %llx %llx %llx %llx\n", \
(unsigned long long)csio_rd_reg64(__hw, __mb), \
(unsigned long long)csio_rd_reg64(__hw, __mb + 8), \
(unsigned long long)csio_rd_reg64(__hw, __mb + 16), \
(unsigned long long)csio_rd_reg64(__hw, __mb + 24), \
(unsigned long long)csio_rd_reg64(__hw, __mb + 32), \
(unsigned long long)csio_rd_reg64(__hw, __mb + 40), \
(unsigned long long)csio_rd_reg64(__hw, __mb + 48), \
(unsigned long long)csio_rd_reg64(__hw, __mb + 56))
#define CSIO_MB_MAX_REGS 8
#define CSIO_MAX_MB_SIZE 64
#define CSIO_MB_POLL_FREQ 5 /* 5 ms */
#define CSIO_MB_DEFAULT_TMO FW_CMD_MAX_TIMEOUT
/* Device master in HELLO command */
enum csio_dev_master { CSIO_MASTER_CANT, CSIO_MASTER_MAY, CSIO_MASTER_MUST };
enum csio_mb_owner { CSIO_MBOWNER_NONE, CSIO_MBOWNER_FW, CSIO_MBOWNER_PL };
enum csio_dev_state {
CSIO_DEV_STATE_UNINIT,
CSIO_DEV_STATE_INIT,
CSIO_DEV_STATE_ERR
};
#define FW_PARAM_DEV(param) \
(FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) | \
FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_##param))
#define FW_PARAM_PFVF(param) \
(FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_PFVF) | \
FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_PFVF_##param)| \
FW_PARAMS_PARAM_Y_V(0) | \
FW_PARAMS_PARAM_Z_V(0))
enum {
PAUSE_RX = 1 << 0,
PAUSE_TX = 1 << 1,
PAUSE_AUTONEG = 1 << 2
};
#define CSIO_INIT_MBP(__mbp, __cp, __tmo, __priv, __fn, __clear) \
do { \
if (__clear) \
memset((__cp), 0, \
CSIO_MB_MAX_REGS * sizeof(__be64)); \
INIT_LIST_HEAD(&(__mbp)->list); \
(__mbp)->tmo = (__tmo); \
(__mbp)->priv = (void *)(__priv); \
(__mbp)->mb_cbfn = (__fn); \
(__mbp)->mb_size = sizeof(*(__cp)); \
} while (0)
struct csio_mbm_stats {
uint32_t n_req; /* number of mbox req */
uint32_t n_rsp; /* number of mbox rsp */
uint32_t n_activeq; /* number of mbox req active Q */
uint32_t n_cbfnq; /* number of mbox req cbfn Q */
uint32_t n_tmo; /* number of mbox timeout */
uint32_t n_cancel; /* number of mbox cancel */
uint32_t n_err; /* number of mbox error */
};
/* Driver version of Mailbox */
struct csio_mb {
struct list_head list; /* for req/resp */
/* queue in driver */
__be64 mb[CSIO_MB_MAX_REGS]; /* MB in HW format */
int mb_size; /* Size of this
* mailbox.
*/
uint32_t tmo; /* Timeout */
struct completion cmplobj; /* MB Completion
* object
*/
void (*mb_cbfn) (struct csio_hw *, struct csio_mb *);
/* Callback fn */
void *priv; /* Owner private ptr */
};
struct csio_mbm {
uint32_t a_mbox; /* Async mbox num */
uint32_t intr_idx; /* Interrupt index */
struct timer_list timer; /* Mbox timer */
struct list_head req_q; /* Mbox request queue */
struct list_head cbfn_q; /* Mbox completion q */
struct csio_mb *mcurrent; /* Current mailbox */
uint32_t req_q_cnt; /* Outstanding mbox
* cmds
*/
struct csio_mbm_stats stats; /* Statistics */
};
#define csio_set_mb_intr_idx(_m, _i) ((_m)->intr_idx = (_i))
#define csio_get_mb_intr_idx(_m) ((_m)->intr_idx)
struct csio_iq_params;
struct csio_eq_params;
enum fw_retval csio_mb_fw_retval(struct csio_mb *);
/* MB helpers */
void csio_mb_hello(struct csio_hw *, struct csio_mb *, uint32_t,
uint32_t, uint32_t, enum csio_dev_master,
void (*)(struct csio_hw *, struct csio_mb *));
void csio_mb_process_hello_rsp(struct csio_hw *, struct csio_mb *,
enum fw_retval *, enum csio_dev_state *,
uint8_t *);
void csio_mb_bye(struct csio_hw *, struct csio_mb *, uint32_t,
void (*)(struct csio_hw *, struct csio_mb *));
void csio_mb_reset(struct csio_hw *, struct csio_mb *, uint32_t, int, int,
void (*)(struct csio_hw *, struct csio_mb *));
void csio_mb_params(struct csio_hw *, struct csio_mb *, uint32_t, unsigned int,
unsigned int, unsigned int, const u32 *, u32 *, bool,
void (*)(struct csio_hw *, struct csio_mb *));
void csio_mb_process_read_params_rsp(struct csio_hw *, struct csio_mb *,
enum fw_retval *, unsigned int , u32 *);
void csio_mb_ldst(struct csio_hw *hw, struct csio_mb *mbp, uint32_t tmo,
int reg);
void csio_mb_caps_config(struct csio_hw *, struct csio_mb *, uint32_t,
bool, bool, bool, bool,
void (*)(struct csio_hw *, struct csio_mb *));
void csio_mb_port(struct csio_hw *, struct csio_mb *, uint32_t,
uint8_t, bool, uint32_t, uint16_t,
void (*) (struct csio_hw *, struct csio_mb *));
void csio_mb_process_read_port_rsp(struct csio_hw *, struct csio_mb *,
enum fw_retval *, uint16_t *);
void csio_mb_initialize(struct csio_hw *, struct csio_mb *, uint32_t,
void (*)(struct csio_hw *, struct csio_mb *));
void csio_mb_iq_alloc_write(struct csio_hw *, struct csio_mb *, void *,
uint32_t, struct csio_iq_params *,
void (*) (struct csio_hw *, struct csio_mb *));
void csio_mb_iq_alloc_write_rsp(struct csio_hw *, struct csio_mb *,
enum fw_retval *, struct csio_iq_params *);
void csio_mb_iq_free(struct csio_hw *, struct csio_mb *, void *,
uint32_t, struct csio_iq_params *,
void (*) (struct csio_hw *, struct csio_mb *));
void csio_mb_eq_ofld_alloc_write(struct csio_hw *, struct csio_mb *, void *,
uint32_t, struct csio_eq_params *,
void (*) (struct csio_hw *, struct csio_mb *));
void csio_mb_eq_ofld_alloc_write_rsp(struct csio_hw *, struct csio_mb *,
enum fw_retval *, struct csio_eq_params *);
void csio_mb_eq_ofld_free(struct csio_hw *, struct csio_mb *, void *,
uint32_t , struct csio_eq_params *,
void (*) (struct csio_hw *, struct csio_mb *));
void csio_fcoe_read_res_info_init_mb(struct csio_hw *, struct csio_mb *,
uint32_t,
void (*) (struct csio_hw *, struct csio_mb *));
void csio_write_fcoe_link_cond_init_mb(struct csio_lnode *, struct csio_mb *,
uint32_t, uint8_t, uint32_t, uint8_t, bool, uint32_t,
void (*) (struct csio_hw *, struct csio_mb *));
void csio_fcoe_vnp_alloc_init_mb(struct csio_lnode *, struct csio_mb *,
uint32_t, uint32_t , uint32_t , uint16_t,
uint8_t [8], uint8_t [8],
void (*) (struct csio_hw *, struct csio_mb *));
void csio_fcoe_vnp_read_init_mb(struct csio_lnode *, struct csio_mb *,
uint32_t, uint32_t , uint32_t ,
void (*) (struct csio_hw *, struct csio_mb *));
void csio_fcoe_vnp_free_init_mb(struct csio_lnode *, struct csio_mb *,
uint32_t , uint32_t, uint32_t ,
void (*) (struct csio_hw *, struct csio_mb *));
void csio_fcoe_read_fcf_init_mb(struct csio_lnode *, struct csio_mb *,
uint32_t, uint32_t, uint32_t,
void (*cbfn) (struct csio_hw *, struct csio_mb *));
void csio_fcoe_read_portparams_init_mb(struct csio_hw *hw,
struct csio_mb *mbp, uint32_t mb_tmo,
struct fw_fcoe_port_cmd_params *portparams,
void (*cbfn)(struct csio_hw *, struct csio_mb *));
void csio_mb_process_portparams_rsp(struct csio_hw *hw, struct csio_mb *mbp,
enum fw_retval *retval,
struct fw_fcoe_port_cmd_params *portparams,
struct fw_fcoe_port_stats *portstats);
/* MB module functions */
int csio_mbm_init(struct csio_mbm *, struct csio_hw *,
void (*)(uintptr_t));
void csio_mbm_exit(struct csio_mbm *);
void csio_mb_intr_enable(struct csio_hw *);
void csio_mb_intr_disable(struct csio_hw *);
int csio_mb_issue(struct csio_hw *, struct csio_mb *);
void csio_mb_completions(struct csio_hw *, struct list_head *);
int csio_mb_fwevt_handler(struct csio_hw *, __be64 *);
int csio_mb_isr_handler(struct csio_hw *);
struct csio_mb *csio_mb_tmo_handler(struct csio_hw *);
void csio_mb_cancel_all(struct csio_hw *, struct list_head *);
#endif /* ifndef __CSIO_MB_H__ */
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