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/*
* Linux network driver for Brocade Converged Network Adapter.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License (GPL) Version 2 as
* published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
/*
* Copyright (c) 2005-2011 Brocade Communications Systems, Inc.
* All rights reserved
* www.brocade.com
*/
#ifndef __BFA_MSGQ_H__
#define __BFA_MSGQ_H__
#include "bfa_defs.h"
#include "bfi.h"
#include "bfa_ioc.h"
#include "bfa_cs.h"
#define BFA_MSGQ_FREE_CNT(_q) \
(((_q)->consumer_index - (_q)->producer_index - 1) & ((_q)->depth - 1))
#define BFA_MSGQ_INDX_ADD(_q_indx, _qe_num, _q_depth) \
((_q_indx) = (((_q_indx) + (_qe_num)) & ((_q_depth) - 1)))
#define BFA_MSGQ_CMDQ_NUM_ENTRY 128
#define BFA_MSGQ_CMDQ_SIZE \
(BFI_MSGQ_CMD_ENTRY_SIZE * BFA_MSGQ_CMDQ_NUM_ENTRY)
#define BFA_MSGQ_RSPQ_NUM_ENTRY 128
#define BFA_MSGQ_RSPQ_SIZE \
(BFI_MSGQ_RSP_ENTRY_SIZE * BFA_MSGQ_RSPQ_NUM_ENTRY)
#define bfa_msgq_cmd_set(_cmd, _cbfn, _cbarg, _msg_size, _msg_hdr) \
do { \
(_cmd)->cbfn = (_cbfn); \
(_cmd)->cbarg = (_cbarg); \
(_cmd)->msg_size = (_msg_size); \
(_cmd)->msg_hdr = (_msg_hdr); \
} while (0)
struct bfa_msgq;
typedef void (*bfa_msgq_cmdcbfn_t)(void *cbarg, enum bfa_status status);
struct bfa_msgq_cmd_entry {
struct list_head qe;
bfa_msgq_cmdcbfn_t cbfn;
void *cbarg;
size_t msg_size;
struct bfi_msgq_mhdr *msg_hdr;
};
enum bfa_msgq_cmdq_flags {
BFA_MSGQ_CMDQ_F_DB_UPDATE = 1,
};
struct bfa_msgq_cmdq {
bfa_fsm_t fsm;
enum bfa_msgq_cmdq_flags flags;
u16 producer_index;
u16 consumer_index;
u16 depth; /* FW Q depth is 16 bits */
struct bfa_dma addr;
struct bfa_mbox_cmd dbell_mb;
u16 token;
int offset;
int bytes_to_copy;
struct bfa_mbox_cmd copy_mb;
struct list_head pending_q; /* pending command queue */
struct bfa_msgq *msgq;
};
enum bfa_msgq_rspq_flags {
BFA_MSGQ_RSPQ_F_DB_UPDATE = 1,
};
typedef void (*bfa_msgq_mcfunc_t)(void *cbarg, struct bfi_msgq_mhdr *mhdr);
struct bfa_msgq_rspq {
bfa_fsm_t fsm;
enum bfa_msgq_rspq_flags flags;
u16 producer_index;
u16 consumer_index;
u16 depth; /* FW Q depth is 16 bits */
struct bfa_dma addr;
struct bfa_mbox_cmd dbell_mb;
int nmclass;
struct {
bfa_msgq_mcfunc_t cbfn;
void *cbarg;
} rsphdlr[BFI_MC_MAX];
struct bfa_msgq *msgq;
};
struct bfa_msgq {
struct bfa_msgq_cmdq cmdq;
struct bfa_msgq_rspq rspq;
struct bfa_wc init_wc;
struct bfa_mbox_cmd init_mb;
struct bfa_ioc_notify ioc_notify;
struct bfa_ioc *ioc;
};
u32 bfa_msgq_meminfo(void);
void bfa_msgq_memclaim(struct bfa_msgq *msgq, u8 *kva, u64 pa);
void bfa_msgq_attach(struct bfa_msgq *msgq, struct bfa_ioc *ioc);
void bfa_msgq_regisr(struct bfa_msgq *msgq, enum bfi_mclass mc,
bfa_msgq_mcfunc_t cbfn, void *cbarg);
void bfa_msgq_cmd_post(struct bfa_msgq *msgq,
struct bfa_msgq_cmd_entry *cmd);
void bfa_msgq_rsp_copy(struct bfa_msgq *msgq, u8 *buf, size_t buf_len);
#endif
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