118 lines
3.6 KiB
C
118 lines
3.6 KiB
C
/*
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* Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
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* All rights reserved
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* www.brocade.com
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*
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* Linux driver for Brocade Fibre Channel Host Bus Adapter.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License (GPL) Version 2 as
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* published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#ifndef __BFA_INTR_PRIV_H__
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#define __BFA_INTR_PRIV_H__
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/**
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* Message handler
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*/
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typedef void (*bfa_isr_func_t) (struct bfa_s *bfa, struct bfi_msg_s *m);
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void bfa_isr_unhandled(struct bfa_s *bfa, struct bfi_msg_s *m);
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void bfa_isr_bind(enum bfi_mclass mc, bfa_isr_func_t isr_func);
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#define bfa_reqq_pi(__bfa, __reqq) ((__bfa)->iocfc.req_cq_pi[__reqq])
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#define bfa_reqq_ci(__bfa, __reqq) \
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(*(u32 *)((__bfa)->iocfc.req_cq_shadow_ci[__reqq].kva))
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#define bfa_reqq_full(__bfa, __reqq) \
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(((bfa_reqq_pi(__bfa, __reqq) + 1) & \
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((__bfa)->iocfc.cfg.drvcfg.num_reqq_elems - 1)) == \
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bfa_reqq_ci(__bfa, __reqq))
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#define bfa_reqq_next(__bfa, __reqq) \
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(bfa_reqq_full(__bfa, __reqq) ? NULL : \
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((void *)((struct bfi_msg_s *)((__bfa)->iocfc.req_cq_ba[__reqq].kva) \
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+ bfa_reqq_pi((__bfa), (__reqq)))))
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#define bfa_reqq_produce(__bfa, __reqq) do { \
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(__bfa)->iocfc.req_cq_pi[__reqq]++; \
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(__bfa)->iocfc.req_cq_pi[__reqq] &= \
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((__bfa)->iocfc.cfg.drvcfg.num_reqq_elems - 1); \
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bfa_reg_write((__bfa)->iocfc.bfa_regs.cpe_q_pi[__reqq], \
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(__bfa)->iocfc.req_cq_pi[__reqq]); \
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bfa_os_mmiowb(); \
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} while (0)
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#define bfa_rspq_pi(__bfa, __rspq) \
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(*(u32 *)((__bfa)->iocfc.rsp_cq_shadow_pi[__rspq].kva))
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#define bfa_rspq_ci(__bfa, __rspq) ((__bfa)->iocfc.rsp_cq_ci[__rspq])
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#define bfa_rspq_elem(__bfa, __rspq, __ci) \
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(&((struct bfi_msg_s *)((__bfa)->iocfc.rsp_cq_ba[__rspq].kva))[__ci])
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#define CQ_INCR(__index, __size) do { \
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(__index)++; \
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(__index) &= ((__size) - 1); \
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} while (0)
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/**
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* Queue element to wait for room in request queue. FIFO order is
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* maintained when fullfilling requests.
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*/
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struct bfa_reqq_wait_s {
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struct list_head qe;
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void (*qresume) (void *cbarg);
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void *cbarg;
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};
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/**
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* Circular queue usage assignments
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*/
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enum {
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BFA_REQQ_IOC = 0, /* all low-priority IOC msgs */
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BFA_REQQ_FCXP = 0, /* all FCXP messages */
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BFA_REQQ_LPS = 0, /* all lport service msgs */
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BFA_REQQ_PORT = 0, /* all port messages */
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BFA_REQQ_FLASH = 0, /* for flash module */
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BFA_REQQ_DIAG = 0, /* for diag module */
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BFA_REQQ_RPORT = 0, /* all port messages */
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BFA_REQQ_SBOOT = 0, /* all san boot messages */
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BFA_REQQ_QOS_LO = 1, /* all low priority IO */
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BFA_REQQ_QOS_MD = 2, /* all medium priority IO */
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BFA_REQQ_QOS_HI = 3, /* all high priority IO */
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};
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static inline void
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bfa_reqq_winit(struct bfa_reqq_wait_s *wqe, void (*qresume) (void *cbarg),
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void *cbarg)
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{
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wqe->qresume = qresume;
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wqe->cbarg = cbarg;
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}
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#define bfa_reqq(__bfa, __reqq) (&(__bfa)->reqq_waitq[__reqq])
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/**
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* static inline void
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* bfa_reqq_wait(struct bfa_s *bfa, int reqq, struct bfa_reqq_wait_s *wqe)
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*/
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#define bfa_reqq_wait(__bfa, __reqq, __wqe) do { \
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\
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struct list_head *waitq = bfa_reqq(__bfa, __reqq); \
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\
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bfa_assert(((__reqq) < BFI_IOC_MAX_CQS)); \
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bfa_assert((__wqe)->qresume && (__wqe)->cbarg); \
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\
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list_add_tail(&(__wqe)->qe, waitq); \
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} while (0)
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#define bfa_reqq_wcancel(__wqe) list_del(&(__wqe)->qe)
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#endif /* __BFA_INTR_PRIV_H__ */
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