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freebsd-skq/sys/dev/ocs_fc/ocs_utils.h
Kenneth D. Merry ef270ab1b6 Bring in the Broadcom/Emulex Fibre Channel driver, ocs_fc(4). 
The ocs_fc(4) driver supports the following hardware:

Emulex 16/8G FC GEN 5 HBAS
	LPe15004 FC Host Bus Adapters
	LPe160XX FC Host Bus Adapters

Emulex 32/16G FC GEN 6 HBAS
	LPe3100X FC Host Bus Adapters
	LPe3200X FC Host Bus Adapters

The driver supports target and initiator mode, and also supports FC-Tape.

Note that the driver only currently works on little endian platforms.  It
is only included in the module build for amd64 and i386, and in GENERIC
on amd64 only.

Submitted by:	Ram Kishore Vegesna <ram.vegesna@broadcom.com>
Reviewed by:	mav
MFC after:	5 days
Relnotes:	yes
Sponsored by:	Broadcom
Differential Revision:	https://reviews.freebsd.org/D11423
2018-03-30 15:28:25 +00:00

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/*-
* Copyright (c) 2017 Broadcom. All rights reserved.
* The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
/**
* @file
*
*/
#ifndef __OCS_UTILS_H
#define __OCS_UTILS_H
#include "ocs_list.h"
typedef struct ocs_array_s ocs_array_t;
extern void ocs_array_set_slablen(uint32_t len);
extern ocs_array_t *ocs_array_alloc(ocs_os_handle_t os, uint32_t size, uint32_t count);
extern void ocs_array_free(ocs_array_t *array);
extern void *ocs_array_get(ocs_array_t *array, uint32_t idx);
extern uint32_t ocs_array_get_count(ocs_array_t *array);
extern uint32_t ocs_array_get_size(ocs_array_t *array);
/* Void pointer array and iterator */
typedef struct ocs_varray_s ocs_varray_t;
extern ocs_varray_t *ocs_varray_alloc(ocs_os_handle_t os, uint32_t entry_count);
extern void ocs_varray_free(ocs_varray_t *ai);
extern int32_t ocs_varray_add(ocs_varray_t *ai, void *entry);
extern void ocs_varray_iter_reset(ocs_varray_t *ai);
extern void *ocs_varray_iter_next(ocs_varray_t *ai);
extern void *_ocs_varray_iter_next(ocs_varray_t *ai);
extern void ocs_varray_lock(ocs_varray_t *ai);
extern void ocs_varray_unlock(ocs_varray_t *ai);
extern uint32_t ocs_varray_get_count(ocs_varray_t *ai);
/***************************************************************************
* Circular buffer
*
*/
typedef struct ocs_cbuf_s ocs_cbuf_t;
extern ocs_cbuf_t *ocs_cbuf_alloc(ocs_os_handle_t os, uint32_t entry_count);
extern void ocs_cbuf_free(ocs_cbuf_t *cbuf);
extern void *ocs_cbuf_get(ocs_cbuf_t *cbuf, int32_t timeout_usec);
extern int32_t ocs_cbuf_put(ocs_cbuf_t *cbuf, void *elem);
extern int32_t ocs_cbuf_prime(ocs_cbuf_t *cbuf, ocs_array_t *array);
typedef struct {
void *vaddr;
uint32_t length;
} ocs_scsi_vaddr_len_t;
#define OCS_TEXTBUF_MAX_ALLOC_LEN (256*1024)
typedef struct {
ocs_list_link_t link;
uint8_t user_allocated:1;
uint8_t *buffer;
uint32_t buffer_length;
uint32_t buffer_written;
} ocs_textbuf_segment_t;
typedef struct {
ocs_t *ocs;
ocs_list_t segment_list;
uint8_t extendable:1;
uint32_t allocation_length;
uint32_t total_allocation_length;
uint32_t max_allocation_length;
} ocs_textbuf_t;
extern int32_t ocs_textbuf_alloc(ocs_t *ocs, ocs_textbuf_t *textbuf, uint32_t length);
extern uint32_t ocs_textbuf_initialized(ocs_textbuf_t *textbuf);
extern int32_t ocs_textbuf_init(ocs_t *ocs, ocs_textbuf_t *textbuf, void *buffer, uint32_t length);
extern void ocs_textbuf_free(ocs_t *ocs, ocs_textbuf_t *textbuf);
extern void ocs_textbuf_putc(ocs_textbuf_t *textbuf, uint8_t c);
extern void ocs_textbuf_puts(ocs_textbuf_t *textbuf, char *s);
__attribute__((format(printf,2,3)))
extern void ocs_textbuf_printf(ocs_textbuf_t *textbuf, const char *fmt, ...);
__attribute__((format(printf,2,0)))
extern void ocs_textbuf_vprintf(ocs_textbuf_t *textbuf, const char *fmt, va_list ap);
extern void ocs_textbuf_buffer(ocs_textbuf_t *textbuf, uint8_t *buffer, uint32_t buffer_length);
extern void ocs_textbuf_copy(ocs_textbuf_t *textbuf, uint8_t *buffer, uint32_t buffer_length);
extern int32_t ocs_textbuf_remaining(ocs_textbuf_t *textbuf);
extern void ocs_textbuf_reset(ocs_textbuf_t *textbuf);
extern uint8_t *ocs_textbuf_get_buffer(ocs_textbuf_t *textbuf);
extern int32_t ocs_textbuf_get_length(ocs_textbuf_t *textbuf);
extern int32_t ocs_textbuf_get_written(ocs_textbuf_t *textbuf);
extern uint8_t *ocs_textbuf_ext_get_buffer(ocs_textbuf_t *textbuf, uint32_t idx);
extern int32_t ocs_textbuf_ext_get_length(ocs_textbuf_t *textbuf, uint32_t idx);
extern int32_t ocs_textbuf_ext_get_written(ocs_textbuf_t *textbuf, uint32_t idx);
typedef struct ocs_pool_s ocs_pool_t;
extern ocs_pool_t *ocs_pool_alloc(ocs_os_handle_t os, uint32_t size, uint32_t count, uint32_t use_lock);
extern void ocs_pool_reset(ocs_pool_t *pool);
extern void ocs_pool_free(ocs_pool_t *pool);
extern void *ocs_pool_get(ocs_pool_t *pool);
extern void ocs_pool_put(ocs_pool_t *pool, void *item);
extern uint32_t ocs_pool_get_count(ocs_pool_t *pool);
extern void *ocs_pool_get_instance(ocs_pool_t *pool, uint32_t idx);
extern uint32_t ocs_pool_get_freelist_count(ocs_pool_t *pool);
/* Uncomment this line to enable logging extended queue history
*/
//#define OCS_DEBUG_QUEUE_HISTORY
/* Allocate maximum allowed (4M) */
#if defined(OCS_DEBUG_QUEUE_HISTORY)
#define OCS_Q_HIST_SIZE (1000000UL) /* Size in words */
#endif
#define OCS_LOG_ENABLE_SM_TRACE(ocs) (((ocs) != NULL) ? (((ocs)->logmask & (1U << 0)) != 0) : 0)
#define OCS_LOG_ENABLE_ELS_TRACE(ocs) (((ocs) != NULL) ? (((ocs)->logmask & (1U << 1)) != 0) : 0)
#define OCS_LOG_ENABLE_SCSI_TRACE(ocs) (((ocs) != NULL) ? (((ocs)->logmask & (1U << 2)) != 0) : 0)
#define OCS_LOG_ENABLE_SCSI_TGT_TRACE(ocs) (((ocs) != NULL) ? (((ocs)->logmask & (1U << 3)) != 0) : 0)
#define OCS_LOG_ENABLE_DOMAIN_SM_TRACE(ocs) (((ocs) != NULL) ? (((ocs)->logmask & (1U << 4)) != 0) : 0)
#define OCS_LOG_ENABLE_Q_FULL_BUSY_MSG(ocs) (((ocs) != NULL) ? (((ocs)->logmask & (1U << 5)) != 0) : 0)
#define OCS_LOG_ENABLE_IO_ERRORS(ocs) (((ocs) != NULL) ? (((ocs)->logmask & (1U << 6)) != 0) : 0)
extern void ocs_dump32(uint32_t, ocs_os_handle_t, const char *, void *, uint32_t);
extern void ocs_debug_enable(uint32_t mask);
extern void ocs_debug_disable(uint32_t mask);
extern int ocs_debug_is_enabled(uint32_t mask);
extern void ocs_debug_attach(void *);
extern void ocs_debug_detach(void *);
#if defined(OCS_DEBUG_QUEUE_HISTORY)
/**
* @brief Queue history footer
*/
typedef union ocs_q_hist_ftr_u {
uint32_t word;
struct {
#define Q_HIST_TYPE_LEN 3
#define Q_HIST_MASK_LEN 29
uint32_t mask:Q_HIST_MASK_LEN,
type:Q_HIST_TYPE_LEN;
} s;
} ocs_q_hist_ftr_t;
/**
* @brief WQE command mask lookup
*/
typedef struct ocs_q_hist_wqe_mask_s {
uint8_t command;
uint32_t mask;
} ocs_q_hist_wqe_mask_t;
/**
* @brief CQE mask lookup
*/
typedef struct ocs_q_hist_cqe_mask_s {
uint8_t ctype;
uint32_t :Q_HIST_MASK_LEN,
type:Q_HIST_TYPE_LEN;
uint32_t mask;
uint32_t mask_err;
} ocs_q_hist_cqe_mask_t;
/**
* @brief Queue history type
*/
typedef enum {
/* changes need to be made to ocs_queue_history_type_name() as well */
OCS_Q_HIST_TYPE_WQE = 0,
OCS_Q_HIST_TYPE_CWQE,
OCS_Q_HIST_TYPE_CXABT,
OCS_Q_HIST_TYPE_MISC,
} ocs_q_hist_type_t;
static __inline const char *
ocs_queue_history_type_name(ocs_q_hist_type_t type)
{
switch (type) {
case OCS_Q_HIST_TYPE_WQE: return "wqe"; break;
case OCS_Q_HIST_TYPE_CWQE: return "wcqe"; break;
case OCS_Q_HIST_TYPE_CXABT: return "xacqe"; break;
case OCS_Q_HIST_TYPE_MISC: return "misc"; break;
default: return "unknown"; break;
}
}
typedef struct {
ocs_t *ocs;
uint32_t *q_hist;
uint32_t q_hist_index;
ocs_lock_t q_hist_lock;
} ocs_hw_q_hist_t;
extern void ocs_queue_history_cqe(ocs_hw_q_hist_t*, uint8_t, uint32_t *, uint8_t, uint32_t, uint32_t);
extern void ocs_queue_history_wq(ocs_hw_q_hist_t*, uint32_t *, uint32_t, uint32_t);
extern void ocs_queue_history_misc(ocs_hw_q_hist_t*, uint32_t *, uint32_t);
extern void ocs_queue_history_init(ocs_t *, ocs_hw_q_hist_t*);
extern void ocs_queue_history_free(ocs_hw_q_hist_t*);
extern uint32_t ocs_queue_history_prev_index(uint32_t);
extern uint8_t ocs_queue_history_q_info_enabled(void);
extern uint8_t ocs_queue_history_timestamp_enabled(void);
#else
#define ocs_queue_history_wq(...)
#define ocs_queue_history_cqe(...)
#define ocs_queue_history_misc(...)
#define ocs_queue_history_init(...)
#define ocs_queue_history_free(...)
#endif
#define OCS_DEBUG_ALWAYS (1U << 0)
#define OCS_DEBUG_ENABLE_MQ_DUMP (1U << 1)
#define OCS_DEBUG_ENABLE_CQ_DUMP (1U << 2)
#define OCS_DEBUG_ENABLE_WQ_DUMP (1U << 3)
#define OCS_DEBUG_ENABLE_EQ_DUMP (1U << 4)
#define OCS_DEBUG_ENABLE_SPARAM_DUMP (1U << 5)
extern void _ocs_assert(const char *cond, const char *filename, int linenum);
#define ocs_assert(cond, ...) \
do { \
if (!(cond)) { \
_ocs_assert(#cond, __FILE__, __LINE__); \
return __VA_ARGS__; \
} \
} while (0)
extern void ocs_dump_service_params(const char *label, void *sparms);
extern void ocs_display_sparams(const char *prelabel, const char *reqlabel, int dest, void *textbuf, void *sparams);
typedef struct {
uint16_t crc;
uint16_t app_tag;
uint32_t ref_tag;
} ocs_dif_t;
/* DIF guard calculations */
extern uint16_t ocs_scsi_dif_calc_crc(const uint8_t *, uint32_t size, uint16_t crc);
extern uint16_t ocs_scsi_dif_calc_checksum(ocs_scsi_vaddr_len_t addrlen[], uint32_t addrlen_count);
/**
* @brief Power State change message types
*
*/
typedef enum {
OCS_PM_PREPARE = 1,
OCS_PM_SLEEP,
OCS_PM_HIBERNATE,
OCS_PM_RESUME,
} ocs_pm_msg_e;
/**
* @brief Power State values
*
*/
typedef enum {
OCS_PM_STATE_S0 = 0,
OCS_PM_STATE_S1,
OCS_PM_STATE_S2,
OCS_PM_STATE_S3,
OCS_PM_STATE_S4,
} ocs_pm_state_e;
typedef struct {
ocs_pm_state_e pm_state; /*<< Current PM state */
} ocs_pm_context_t;
extern int32_t ocs_pm_request(ocs_t *ocs, ocs_pm_msg_e msg, int32_t (*callback)(ocs_t *ocs, int32_t status, void *arg),
void *arg);
extern ocs_pm_state_e ocs_pm_get_state(ocs_t *ocs);
extern const char *ocs_pm_get_state_string(ocs_t *ocs);
#define SPV_ROWLEN 256
#define SPV_DIM 3
/*!
* @defgroup spv Sparse Vector
*/
/**
* @brief Sparse vector structure.
*/
typedef struct sparse_vector_s {
ocs_os_handle_t os;
uint32_t max_idx; /**< maximum index value */
void **array; /**< pointer to 3D array */
} *sparse_vector_t;
extern void spv_del(sparse_vector_t spv);
extern sparse_vector_t spv_new(ocs_os_handle_t os);
extern void spv_set(sparse_vector_t sv, uint32_t idx, void *value);
extern void *spv_get(sparse_vector_t sv, uint32_t idx);
extern unsigned short t10crc16(const unsigned char *blk_adr, unsigned long blk_len, unsigned short crc);
typedef struct ocs_ramlog_s ocs_ramlog_t;
#define OCS_RAMLOG_DEFAULT_BUFFERS 5
extern ocs_ramlog_t *ocs_ramlog_init(ocs_t *ocs, uint32_t buffer_len, uint32_t buffer_count);
extern void ocs_ramlog_free(ocs_t *ocs, ocs_ramlog_t *ramlog);
extern void ocs_ramlog_clear(ocs_t *ocs, ocs_ramlog_t *ramlog, int clear_start_of_day, int clear_recent);
__attribute__((format(printf,2,3)))
extern int32_t ocs_ramlog_printf(void *os, const char *fmt, ...);
__attribute__((format(printf,2,0)))
extern int32_t ocs_ramlog_vprintf(ocs_ramlog_t *ramlog, const char *fmt, va_list ap);
extern int32_t ocs_ddump_ramlog(ocs_textbuf_t *textbuf, ocs_ramlog_t *ramlog);
#endif
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