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326 lines
7.1 KiB
326 lines
7.1 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (c) 2005-2014 Brocade Communications Systems, Inc. |
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* Copyright (c) 2014- QLogic Corporation. |
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* All rights reserved |
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* www.qlogic.com |
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* |
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* Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter. |
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*/ |
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/* |
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* bfa_cs.h BFA common services |
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*/ |
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#ifndef __BFA_CS_H__ |
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#define __BFA_CS_H__ |
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#include "bfad_drv.h" |
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/* |
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* BFA TRC |
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*/ |
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#ifndef BFA_TRC_MAX |
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#define BFA_TRC_MAX (4 * 1024) |
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#endif |
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#define BFA_TRC_TS(_trcm) \ |
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({ \ |
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struct timespec64 ts; \ |
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\ |
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ktime_get_ts64(&ts); \ |
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(ts.tv_sec*1000000+ts.tv_nsec / 1000); \ |
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}) |
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#ifndef BFA_TRC_TS |
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#define BFA_TRC_TS(_trcm) ((_trcm)->ticks++) |
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#endif |
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struct bfa_trc_s { |
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#ifdef __BIG_ENDIAN |
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u16 fileno; |
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u16 line; |
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#else |
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u16 line; |
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u16 fileno; |
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#endif |
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u32 timestamp; |
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union { |
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struct { |
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u32 rsvd; |
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u32 u32; |
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} u32; |
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u64 u64; |
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} data; |
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}; |
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struct bfa_trc_mod_s { |
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u32 head; |
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u32 tail; |
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u32 ntrc; |
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u32 stopped; |
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u32 ticks; |
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u32 rsvd[3]; |
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struct bfa_trc_s trc[BFA_TRC_MAX]; |
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}; |
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enum { |
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BFA_TRC_HAL = 1, /* BFA modules */ |
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BFA_TRC_FCS = 2, /* BFA FCS modules */ |
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BFA_TRC_LDRV = 3, /* Linux driver modules */ |
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BFA_TRC_CNA = 4, /* Common modules */ |
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}; |
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#define BFA_TRC_MOD_SH 10 |
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#define BFA_TRC_MOD(__mod) ((BFA_TRC_ ## __mod) << BFA_TRC_MOD_SH) |
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/* |
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* Define a new tracing file (module). Module should match one defined above. |
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*/ |
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#define BFA_TRC_FILE(__mod, __submod) \ |
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static int __trc_fileno = ((BFA_TRC_ ## __mod ## _ ## __submod) | \ |
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BFA_TRC_MOD(__mod)) |
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#define bfa_trc32(_trcp, _data) \ |
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__bfa_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u32)_data) |
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#define bfa_trc(_trcp, _data) \ |
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__bfa_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u64)_data) |
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static inline void |
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bfa_trc_init(struct bfa_trc_mod_s *trcm) |
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{ |
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trcm->head = trcm->tail = trcm->stopped = 0; |
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trcm->ntrc = BFA_TRC_MAX; |
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} |
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static inline void |
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bfa_trc_stop(struct bfa_trc_mod_s *trcm) |
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{ |
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trcm->stopped = 1; |
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} |
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void |
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__bfa_trc(struct bfa_trc_mod_s *trcm, int fileno, int line, u64 data); |
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void |
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__bfa_trc32(struct bfa_trc_mod_s *trcm, int fileno, int line, u32 data); |
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#define bfa_sm_fault(__mod, __event) do { \ |
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bfa_trc(__mod, (((u32)0xDEAD << 16) | __event)); \ |
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printk(KERN_ERR "Assertion failure: %s:%d: %d", \ |
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__FILE__, __LINE__, (__event)); \ |
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} while (0) |
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/* BFA queue definitions */ |
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#define bfa_q_first(_q) ((void *)(((struct list_head *) (_q))->next)) |
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#define bfa_q_next(_qe) (((struct list_head *) (_qe))->next) |
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#define bfa_q_prev(_qe) (((struct list_head *) (_qe))->prev) |
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/* |
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* bfa_q_qe_init - to initialize a queue element |
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*/ |
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#define bfa_q_qe_init(_qe) { \ |
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bfa_q_next(_qe) = (struct list_head *) NULL; \ |
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bfa_q_prev(_qe) = (struct list_head *) NULL; \ |
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} |
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/* |
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* bfa_q_deq - dequeue an element from head of the queue |
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*/ |
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#define bfa_q_deq(_q, _qe) do { \ |
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if (!list_empty(_q)) { \ |
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(*((struct list_head **) (_qe))) = bfa_q_next(_q); \ |
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bfa_q_prev(bfa_q_next(*((struct list_head **) _qe))) = \ |
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(struct list_head *) (_q); \ |
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bfa_q_next(_q) = bfa_q_next(*((struct list_head **) _qe));\ |
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} else { \ |
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*((struct list_head **) (_qe)) = (struct list_head *) NULL;\ |
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} \ |
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} while (0) |
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/* |
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* bfa_q_deq_tail - dequeue an element from tail of the queue |
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*/ |
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#define bfa_q_deq_tail(_q, _qe) { \ |
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if (!list_empty(_q)) { \ |
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*((struct list_head **) (_qe)) = bfa_q_prev(_q); \ |
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bfa_q_next(bfa_q_prev(*((struct list_head **) _qe))) = \ |
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(struct list_head *) (_q); \ |
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bfa_q_prev(_q) = bfa_q_prev(*(struct list_head **) _qe);\ |
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} else { \ |
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*((struct list_head **) (_qe)) = (struct list_head *) NULL;\ |
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} \ |
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} |
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static inline int |
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bfa_q_is_on_q_func(struct list_head *q, struct list_head *qe) |
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{ |
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struct list_head *tqe; |
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tqe = bfa_q_next(q); |
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while (tqe != q) { |
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if (tqe == qe) |
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return 1; |
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tqe = bfa_q_next(tqe); |
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if (tqe == NULL) |
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break; |
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} |
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return 0; |
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} |
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#define bfa_q_is_on_q(_q, _qe) \ |
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bfa_q_is_on_q_func(_q, (struct list_head *)(_qe)) |
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/* |
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* @ BFA state machine interfaces |
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*/ |
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typedef void (*bfa_sm_t)(void *sm, int event); |
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/* |
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* oc - object class eg. bfa_ioc |
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* st - state, eg. reset |
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* otype - object type, eg. struct bfa_ioc_s |
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* etype - object type, eg. enum ioc_event |
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*/ |
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#define bfa_sm_state_decl(oc, st, otype, etype) \ |
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static void oc ## _sm_ ## st(otype * fsm, etype event) |
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#define bfa_sm_set_state(_sm, _state) ((_sm)->sm = (bfa_sm_t)(_state)) |
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#define bfa_sm_send_event(_sm, _event) ((_sm)->sm((_sm), (_event))) |
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#define bfa_sm_get_state(_sm) ((_sm)->sm) |
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#define bfa_sm_cmp_state(_sm, _state) ((_sm)->sm == (bfa_sm_t)(_state)) |
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/* |
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* For converting from state machine function to state encoding. |
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*/ |
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struct bfa_sm_table_s { |
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bfa_sm_t sm; /* state machine function */ |
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int state; /* state machine encoding */ |
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char *name; /* state name for display */ |
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}; |
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#define BFA_SM(_sm) ((bfa_sm_t)(_sm)) |
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/* |
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* State machine with entry actions. |
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*/ |
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typedef void (*bfa_fsm_t)(void *fsm, int event); |
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/* |
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* oc - object class eg. bfa_ioc |
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* st - state, eg. reset |
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* otype - object type, eg. struct bfa_ioc_s |
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* etype - object type, eg. enum ioc_event |
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*/ |
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#define bfa_fsm_state_decl(oc, st, otype, etype) \ |
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static void oc ## _sm_ ## st(otype * fsm, etype event); \ |
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static void oc ## _sm_ ## st ## _entry(otype * fsm) |
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#define bfa_fsm_set_state(_fsm, _state) do { \ |
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(_fsm)->fsm = (bfa_fsm_t)(_state); \ |
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_state ## _entry(_fsm); \ |
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} while (0) |
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#define bfa_fsm_send_event(_fsm, _event) ((_fsm)->fsm((_fsm), (_event))) |
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#define bfa_fsm_get_state(_fsm) ((_fsm)->fsm) |
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#define bfa_fsm_cmp_state(_fsm, _state) \ |
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((_fsm)->fsm == (bfa_fsm_t)(_state)) |
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static inline int |
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bfa_sm_to_state(struct bfa_sm_table_s *smt, bfa_sm_t sm) |
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{ |
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int i = 0; |
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while (smt[i].sm && smt[i].sm != sm) |
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i++; |
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return smt[i].state; |
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} |
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/* |
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* @ Generic wait counter. |
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*/ |
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typedef void (*bfa_wc_resume_t) (void *cbarg); |
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struct bfa_wc_s { |
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bfa_wc_resume_t wc_resume; |
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void *wc_cbarg; |
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int wc_count; |
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}; |
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static inline void |
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bfa_wc_up(struct bfa_wc_s *wc) |
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{ |
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wc->wc_count++; |
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} |
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static inline void |
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bfa_wc_down(struct bfa_wc_s *wc) |
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{ |
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wc->wc_count--; |
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if (wc->wc_count == 0) |
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wc->wc_resume(wc->wc_cbarg); |
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} |
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/* |
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* Initialize a waiting counter. |
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*/ |
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static inline void |
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bfa_wc_init(struct bfa_wc_s *wc, bfa_wc_resume_t wc_resume, void *wc_cbarg) |
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{ |
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wc->wc_resume = wc_resume; |
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wc->wc_cbarg = wc_cbarg; |
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wc->wc_count = 0; |
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bfa_wc_up(wc); |
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} |
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/* |
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* Wait for counter to reach zero |
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*/ |
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static inline void |
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bfa_wc_wait(struct bfa_wc_s *wc) |
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{ |
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bfa_wc_down(wc); |
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} |
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static inline void |
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wwn2str(char *wwn_str, u64 wwn) |
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{ |
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union { |
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u64 wwn; |
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u8 byte[8]; |
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} w; |
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w.wwn = wwn; |
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sprintf(wwn_str, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x", w.byte[0], |
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w.byte[1], w.byte[2], w.byte[3], w.byte[4], w.byte[5], |
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w.byte[6], w.byte[7]); |
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} |
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static inline void |
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fcid2str(char *fcid_str, u32 fcid) |
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{ |
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union { |
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u32 fcid; |
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u8 byte[4]; |
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} f; |
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f.fcid = fcid; |
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sprintf(fcid_str, "%02x:%02x:%02x", f.byte[1], f.byte[2], f.byte[3]); |
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} |
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#define bfa_swap_3b(_x) \ |
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((((_x) & 0xff) << 16) | \ |
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((_x) & 0x00ff00) | \ |
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(((_x) & 0xff0000) >> 16)) |
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#ifndef __BIG_ENDIAN |
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#define bfa_hton3b(_x) bfa_swap_3b(_x) |
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#else |
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#define bfa_hton3b(_x) (_x) |
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#endif |
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#define bfa_ntoh3b(_x) bfa_hton3b(_x) |
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#endif /* __BFA_CS_H__ */
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