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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Linux network driver for QLogic BR-series Converged Network Adapter.4 */5/*6 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.7 * Copyright (c) 2014-2015 QLogic Corporation8 * All rights reserved9 * www.qlogic.com10 */11 12#ifndef __BFA_MSGQ_H__13#define __BFA_MSGQ_H__14 15#include "bfa_defs.h"16#include "bfi.h"17#include "bfa_ioc.h"18#include "bfa_cs.h"19 20#define BFA_MSGQ_FREE_CNT(_q) \21 (((_q)->consumer_index - (_q)->producer_index - 1) & ((_q)->depth - 1))22 23#define BFA_MSGQ_INDX_ADD(_q_indx, _qe_num, _q_depth) \24 ((_q_indx) = (((_q_indx) + (_qe_num)) & ((_q_depth) - 1)))25 26#define BFA_MSGQ_CMDQ_NUM_ENTRY 12827#define BFA_MSGQ_CMDQ_SIZE \28 (BFI_MSGQ_CMD_ENTRY_SIZE * BFA_MSGQ_CMDQ_NUM_ENTRY)29 30#define BFA_MSGQ_RSPQ_NUM_ENTRY 12831#define BFA_MSGQ_RSPQ_SIZE \32 (BFI_MSGQ_RSP_ENTRY_SIZE * BFA_MSGQ_RSPQ_NUM_ENTRY)33 34#define bfa_msgq_cmd_set(_cmd, _cbfn, _cbarg, _msg_size, _msg_hdr) \35do { \36 (_cmd)->cbfn = (_cbfn); \37 (_cmd)->cbarg = (_cbarg); \38 (_cmd)->msg_size = (_msg_size); \39 (_cmd)->msg_hdr = (_msg_hdr); \40} while (0)41 42struct bfa_msgq;43 44typedef void (*bfa_msgq_cmdcbfn_t)(void *cbarg, enum bfa_status status);45 46struct bfa_msgq_cmd_entry {47 struct list_head qe;48 bfa_msgq_cmdcbfn_t cbfn;49 void *cbarg;50 size_t msg_size;51 struct bfi_msgq_mhdr *msg_hdr;52};53 54enum bfa_msgq_cmdq_flags {55 BFA_MSGQ_CMDQ_F_DB_UPDATE = 1,56};57 58enum cmdq_event;59 60struct bfa_msgq_cmdq {61 void (*fsm)(struct bfa_msgq_cmdq *s, enum cmdq_event e);62 enum bfa_msgq_cmdq_flags flags;63 64 u16 producer_index;65 u16 consumer_index;66 u16 depth; /* FW Q depth is 16 bits */67 struct bfa_dma addr;68 struct bfa_mbox_cmd dbell_mb;69 70 u16 token;71 int offset;72 int bytes_to_copy;73 struct bfa_mbox_cmd copy_mb;74 75 struct list_head pending_q; /* pending command queue */76 77 struct bfa_msgq *msgq;78};79 80enum bfa_msgq_rspq_flags {81 BFA_MSGQ_RSPQ_F_DB_UPDATE = 1,82};83 84typedef void (*bfa_msgq_mcfunc_t)(void *cbarg, struct bfi_msgq_mhdr *mhdr);85 86enum rspq_event;87 88struct bfa_msgq_rspq {89 void (*fsm)(struct bfa_msgq_rspq *s, enum rspq_event e);90 enum bfa_msgq_rspq_flags flags;91 92 u16 producer_index;93 u16 consumer_index;94 u16 depth; /* FW Q depth is 16 bits */95 struct bfa_dma addr;96 struct bfa_mbox_cmd dbell_mb;97 98 int nmclass;99 struct {100 bfa_msgq_mcfunc_t cbfn;101 void *cbarg;102 } rsphdlr[BFI_MC_MAX];103 104 struct bfa_msgq *msgq;105};106 107struct bfa_msgq {108 struct bfa_msgq_cmdq cmdq;109 struct bfa_msgq_rspq rspq;110 111 struct bfa_wc init_wc;112 struct bfa_mbox_cmd init_mb;113 114 struct bfa_ioc_notify ioc_notify;115 struct bfa_ioc *ioc;116};117 118u32 bfa_msgq_meminfo(void);119void bfa_msgq_memclaim(struct bfa_msgq *msgq, u8 *kva, u64 pa);120void bfa_msgq_attach(struct bfa_msgq *msgq, struct bfa_ioc *ioc);121void bfa_msgq_regisr(struct bfa_msgq *msgq, enum bfi_mclass mc,122 bfa_msgq_mcfunc_t cbfn, void *cbarg);123void bfa_msgq_cmd_post(struct bfa_msgq *msgq,124 struct bfa_msgq_cmd_entry *cmd);125void bfa_msgq_rsp_copy(struct bfa_msgq *msgq, u8 *buf, size_t buf_len);126 127#endif128