[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / s390 / scsi / zfcp_dbf.h

/*
 * This file is part of the zfcp device driver for
 * FCP adapters for IBM System z9 and zSeries.
 *
 * Copyright IBM Corp. 2008, 2009
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef ZFCP_DBF_H
#define ZFCP_DBF_H

#include <scsi/fc/fc_fcp.h>
#include "zfcp_ext.h"
#include "zfcp_fsf.h"
#include "zfcp_def.h"

#define ZFCP_DBF_TAG_LEN       7
#define ZFCP_DBF_TAG_SIZE      4
#define ZFCP_DBF_ID_SIZE       7

#define ZFCP_DBF_INVALID_LUN	0xFFFFFFFFFFFFFFFFull

struct zfcp_dbf_dump {
	u8 tag[ZFCP_DBF_TAG_SIZE];
	u32 total_size;		/* size of total dump data */
	u32 offset;		/* how much data has being already dumped */
	u32 size;		/* how much data comes with this record */
	u8 data[];		/* dump data */
} __attribute__ ((packed));

/**
 * struct zfcp_dbf_rec_trigger - trace record for triggered recovery action
 * @ready: number of ready recovery actions
 * @running: number of running recovery actions
 * @want: wanted recovery action
 * @need: needed recovery action
 */
struct zfcp_dbf_rec_trigger {
	u32 ready;
	u32 running;
	u8 want;
	u8 need;
} __packed;

/**
 * struct zfcp_dbf_rec_running - trace record for running recovery
 * @fsf_req_id: request id for fsf requests
 * @rec_status: status of the fsf request
 * @rec_step: current step of the recovery action
 * rec_count: recovery counter
 */
struct zfcp_dbf_rec_running {
	u64 fsf_req_id;
	u32 rec_status;
	u16 rec_step;
	u8 rec_action;
	u8 rec_count;
} __packed;

/**
 * enum zfcp_dbf_rec_id - recovery trace record id
 * @ZFCP_DBF_REC_TRIG: triggered recovery identifier
 * @ZFCP_DBF_REC_RUN: running recovery identifier
 */
enum zfcp_dbf_rec_id {
	ZFCP_DBF_REC_TRIG	= 1,
	ZFCP_DBF_REC_RUN	= 2,
};

/**
 * struct zfcp_dbf_rec - trace record for error recovery actions
 * @id: unique number of recovery record type
 * @tag: identifier string specifying the location of initiation
 * @lun: logical unit number
 * @wwpn: word wide port number
 * @d_id: destination ID
 * @adapter_status: current status of the adapter
 * @port_status: current status of the port
 * @lun_status: current status of the lun
 * @u.trig: structure zfcp_dbf_rec_trigger
 * @u.run: structure zfcp_dbf_rec_running
 */
struct zfcp_dbf_rec {
	u8 id;
	char tag[ZFCP_DBF_TAG_LEN];
	u64 lun;
	u64 wwpn;
	u32 d_id;
	u32 adapter_status;
	u32 port_status;
	u32 lun_status;
	union {
		struct zfcp_dbf_rec_trigger trig;
		struct zfcp_dbf_rec_running run;
	} u;
} __packed;

/**
 * enum zfcp_dbf_san_id - SAN trace record identifier
 * @ZFCP_DBF_SAN_REQ: request trace record id
 * @ZFCP_DBF_SAN_RES: response trace record id
 * @ZFCP_DBF_SAN_ELS: extended link service record id
 */
enum zfcp_dbf_san_id {
	ZFCP_DBF_SAN_REQ	= 1,
	ZFCP_DBF_SAN_RES	= 2,
	ZFCP_DBF_SAN_ELS	= 3,
};

/** struct zfcp_dbf_san - trace record for SAN requests and responses
 * @id: unique number of recovery record type
 * @tag: identifier string specifying the location of initiation
 * @fsf_req_id: request id for fsf requests
 * @payload: unformatted information related to request/response
 * @d_id: destination id
 */
struct zfcp_dbf_san {
	u8 id;
	char tag[ZFCP_DBF_TAG_LEN];
	u64 fsf_req_id;
	u32 d_id;
#define ZFCP_DBF_SAN_MAX_PAYLOAD (FC_CT_HDR_LEN + 32)
	char payload[ZFCP_DBF_SAN_MAX_PAYLOAD];
} __packed;

struct zfcp_dbf_hba_record_response {
	u32 fsf_command;
	u64 fsf_reqid;
	u32 fsf_seqno;
	u64 fsf_issued;
	u32 fsf_prot_status;
	u32 fsf_status;
	u8 fsf_prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
	u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
	u32 fsf_req_status;
	u8 sbal_first;
	u8 sbal_last;
	u8 sbal_response;
	u8 pool;
	u64 erp_action;
	union {
		struct {
			u64 cmnd;
			u32 data_dir;
		} fcp;
		struct {
			u64 wwpn;
			u32 d_id;
			u32 port_handle;
		} port;
		struct {
			u64 wwpn;
			u64 fcp_lun;
			u32 port_handle;
			u32 lun_handle;
		} unit;
		struct {
			u32 d_id;
		} els;
	} u;
} __attribute__ ((packed));

struct zfcp_dbf_hba_record_status {
	u8 failed;
	u32 status_type;
	u32 status_subtype;
	struct fsf_queue_designator
	 queue_designator;
	u32 payload_size;
#define ZFCP_DBF_UNSOL_PAYLOAD				80
#define ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL		32
#define ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD	56
#define ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT	2 * sizeof(u32)
	u8 payload[ZFCP_DBF_UNSOL_PAYLOAD];
} __attribute__ ((packed));

struct zfcp_dbf_hba_record_qdio {
	u32 qdio_error;
	u8 sbal_index;
	u8 sbal_count;
} __attribute__ ((packed));

struct zfcp_dbf_hba_record {
	u8 tag[ZFCP_DBF_TAG_SIZE];
	u8 tag2[ZFCP_DBF_TAG_SIZE];
	union {
		struct zfcp_dbf_hba_record_response response;
		struct zfcp_dbf_hba_record_status status;
		struct zfcp_dbf_hba_record_qdio qdio;
		struct fsf_bit_error_payload berr;
	} u;
} __attribute__ ((packed));

struct zfcp_dbf_scsi_record {
	u8 tag[ZFCP_DBF_TAG_SIZE];
	u8 tag2[ZFCP_DBF_TAG_SIZE];
	u32 scsi_id;
	u32 scsi_lun;
	u32 scsi_result;
	u64 scsi_cmnd;
#define ZFCP_DBF_SCSI_OPCODE	16
	u8 scsi_opcode[ZFCP_DBF_SCSI_OPCODE];
	u8 scsi_retries;
	u8 scsi_allowed;
	u64 fsf_reqid;
	u32 fsf_seqno;
	u64 fsf_issued;
	u64 old_fsf_reqid;
	u8 rsp_validity;
	u8 rsp_scsi_status;
	u32 rsp_resid;
	u8 rsp_code;
#define ZFCP_DBF_SCSI_FCP_SNS_INFO	16
#define ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO	256
	u32 sns_info_len;
	u8 sns_info[ZFCP_DBF_SCSI_FCP_SNS_INFO];
} __attribute__ ((packed));

struct zfcp_dbf {
	debug_info_t			*rec;
	debug_info_t			*hba;
	debug_info_t			*san;
	debug_info_t			*scsi;
	spinlock_t			rec_lock;
	spinlock_t			hba_lock;
	spinlock_t			san_lock;
	spinlock_t			scsi_lock;
	struct zfcp_dbf_rec		rec_buf;
	struct zfcp_dbf_hba_record	hba_buf;
	struct zfcp_dbf_san		san_buf;
	struct zfcp_dbf_scsi_record	scsi_buf;
	struct zfcp_adapter		*adapter;
};

static inline
void zfcp_dbf_hba_fsf_resp(const char *tag2, int level,
			   struct zfcp_fsf_req *req, struct zfcp_dbf *dbf)
{
	if (level <= dbf->hba->level)
		_zfcp_dbf_hba_fsf_response(tag2, level, req, dbf);
}

/**
 * zfcp_dbf_hba_fsf_response - trace event for request completion
 * @fsf_req: request that has been completed
 */
static inline void zfcp_dbf_hba_fsf_response(struct zfcp_fsf_req *req)
{
	struct zfcp_dbf *dbf = req->adapter->dbf;
	struct fsf_qtcb *qtcb = req->qtcb;

	if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
	    (qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) {
		zfcp_dbf_hba_fsf_resp("perr", 1, req, dbf);

	} else if (qtcb->header.fsf_status != FSF_GOOD) {
		zfcp_dbf_hba_fsf_resp("ferr", 1, req, dbf);

	} else if ((req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
		   (req->fsf_command == FSF_QTCB_OPEN_LUN)) {
		zfcp_dbf_hba_fsf_resp("open", 4, req, dbf);

	} else if (qtcb->header.log_length) {
		zfcp_dbf_hba_fsf_resp("qtcb", 5, req, dbf);

	} else {
		zfcp_dbf_hba_fsf_resp("norm", 6, req, dbf);
	}
 }

/**
 * zfcp_dbf_hba_fsf_unsol - trace event for an unsolicited status buffer
 * @tag: tag indicating which kind of unsolicited status has been received
 * @dbf: reference to dbf structure
 * @status_buffer: buffer containing payload of unsolicited status
 */
static inline
void zfcp_dbf_hba_fsf_unsol(const char *tag, struct zfcp_dbf *dbf,
			    struct fsf_status_read_buffer *buf)
{
	int level = 2;

	if (level <= dbf->hba->level)
		_zfcp_dbf_hba_fsf_unsol(tag, level, dbf, buf);
}

static inline
void zfcp_dbf_scsi(const char *tag, const char *tag2, int level,
		   struct zfcp_dbf *dbf, struct scsi_cmnd *scmd,
		   struct zfcp_fsf_req *req, unsigned long old_id)
{
	if (level <= dbf->scsi->level)
		_zfcp_dbf_scsi(tag, tag2, level, dbf, scmd, req, old_id);
}

/**
 * zfcp_dbf_scsi_result - trace event for SCSI command completion
 * @dbf: adapter dbf trace
 * @scmd: SCSI command pointer
 * @req: FSF request used to issue SCSI command
 */
static inline
void zfcp_dbf_scsi_result(struct zfcp_dbf *dbf, struct scsi_cmnd *scmd,
			  struct zfcp_fsf_req *req)
{
	if (scmd->result != 0)
		zfcp_dbf_scsi("rslt", "erro", 3, dbf, scmd, req, 0);
	else if (scmd->retries > 0)
		zfcp_dbf_scsi("rslt", "retr", 4, dbf, scmd, req, 0);
	else
		zfcp_dbf_scsi("rslt", "norm", 6, dbf, scmd, req, 0);
}

/**
 * zfcp_dbf_scsi_fail_send - trace event for failure to send SCSI command
 * @dbf: adapter dbf trace
 * @scmd: SCSI command pointer
 */
static inline
void zfcp_dbf_scsi_fail_send(struct zfcp_dbf *dbf, struct scsi_cmnd *scmd)
{
	zfcp_dbf_scsi("rslt", "fail", 4, dbf, scmd, NULL, 0);
}

/**
 * zfcp_dbf_scsi_abort - trace event for SCSI command abort
 * @tag: tag indicating success or failure of abort operation
 * @adapter: adapter thas has been used to issue SCSI command to be aborted
 * @scmd: SCSI command to be aborted
 * @new_req: request containing abort (might be NULL)
 * @old_id: identifier of request containg SCSI command to be aborted
 */
static inline
void zfcp_dbf_scsi_abort(const char *tag, struct zfcp_dbf *dbf,
			 struct scsi_cmnd *scmd, struct zfcp_fsf_req *new_req,
			 unsigned long old_id)
{
	zfcp_dbf_scsi("abrt", tag, 1, dbf, scmd, new_req, old_id);
}

/**
 * zfcp_dbf_scsi_devreset - trace event for Logical Unit or Target Reset
 * @tag: tag indicating success or failure of reset operation
 * @scmnd: SCSI command which caused this error recovery
 * @flag: indicates type of reset (Target Reset, Logical Unit Reset)
 */
static inline
void zfcp_dbf_scsi_devreset(const char *tag, struct scsi_cmnd *scmnd, u8 flag)
{
	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scmnd->device);

	zfcp_dbf_scsi(flag == FCP_TMF_TGT_RESET ? "trst" : "lrst", tag, 1,
		      zfcp_sdev->port->adapter->dbf, scmnd, NULL, 0);
}

#endif /* ZFCP_DBF_H */
Commit	Line	Data
2b604c9b CS	1	/*
	2	* This file is part of the zfcp device driver for
	3	* FCP adapters for IBM System z9 and zSeries.
	4	*
d46f384a	5	* Copyright IBM Corp. 2008, 2009
2b604c9b CS	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2, or (at your option)
	10	* any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	20	*/
	21
	22	#ifndef ZFCP_DBF_H
	23	#define ZFCP_DBF_H
	24
4318e08c	25	#include <scsi/fc/fc_fcp.h>
dcd20e23	26	#include "zfcp_ext.h"
2b604c9b	27	#include "zfcp_fsf.h"
dcd20e23	28	#include "zfcp_def.h"
2b604c9b	29
ae0904f6	30	#define ZFCP_DBF_TAG_LEN 7
2b604c9b	31	#define ZFCP_DBF_TAG_SIZE 4
5ffd51a5	32	#define ZFCP_DBF_ID_SIZE 7
2b604c9b	33
d21e9daa CS	34	#define ZFCP_DBF_INVALID_LUN 0xFFFFFFFFFFFFFFFFull
d21e9daa CS	35
2b604c9b CS	36	struct zfcp_dbf_dump {
	37	u8 tag[ZFCP_DBF_TAG_SIZE];
	38	u32 total_size; /* size of total dump data */
	39	u32 offset; /* how much data has being already dumped */
	40	u32 size; /* how much data comes with this record */
	41	u8 data[]; /* dump data */
	42	} __attribute__ ((packed));
	43
ae0904f6 SS	44	/**
	45	* struct zfcp_dbf_rec_trigger - trace record for triggered recovery action
	46	* @ready: number of ready recovery actions
	47	* @running: number of running recovery actions
	48	* @want: wanted recovery action
	49	* @need: needed recovery action
	50	*/
	51	struct zfcp_dbf_rec_trigger {
2b604c9b CS	52	u32 ready;
2b604c9b CS	53	u32 running;
2b604c9b CS	54	u8 want;
2b604c9b CS	55	u8 need;
ae0904f6 SS	56	} __packed;
	57
	58	/**
	59	* struct zfcp_dbf_rec_running - trace record for running recovery
	60	* @fsf_req_id: request id for fsf requests
	61	* @rec_status: status of the fsf request
	62	* @rec_step: current step of the recovery action
	63	* rec_count: recovery counter
	64	*/
	65	struct zfcp_dbf_rec_running {
	66	u64 fsf_req_id;
	67	u32 rec_status;
	68	u16 rec_step;
	69	u8 rec_action;
	70	u8 rec_count;
	71	} __packed;
2b604c9b	72
ae0904f6 SS	73	/**
	74	* enum zfcp_dbf_rec_id - recovery trace record id
	75	* @ZFCP_DBF_REC_TRIG: triggered recovery identifier
	76	* @ZFCP_DBF_REC_RUN: running recovery identifier
	77	*/
	78	enum zfcp_dbf_rec_id {
	79	ZFCP_DBF_REC_TRIG = 1,
	80	ZFCP_DBF_REC_RUN = 2,
7337891f	81	};
2b604c9b	82
ae0904f6 SS	83	/**
	84	* struct zfcp_dbf_rec - trace record for error recovery actions
	85	* @id: unique number of recovery record type
	86	* @tag: identifier string specifying the location of initiation
	87	* @lun: logical unit number
	88	* @wwpn: word wide port number
	89	* @d_id: destination ID
	90	* @adapter_status: current status of the adapter
	91	* @port_status: current status of the port
	92	* @lun_status: current status of the lun
	93	* @u.trig: structure zfcp_dbf_rec_trigger
	94	* @u.run: structure zfcp_dbf_rec_running
	95	*/
	96	struct zfcp_dbf_rec {
2b604c9b	97	u8 id;
ae0904f6 SS	98	char tag[ZFCP_DBF_TAG_LEN];
	99	u64 lun;
	100	u64 wwpn;
	101	u32 d_id;
	102	u32 adapter_status;
	103	u32 port_status;
	104	u32 lun_status;
2b604c9b	105	union {
ae0904f6 SS	106	struct zfcp_dbf_rec_trigger trig;
ae0904f6 SS	107	struct zfcp_dbf_rec_running run;
2b604c9b	108	} u;
ae0904f6	109	} __packed;
2b604c9b	110
2c55b750 SS	111	/**
	112	* enum zfcp_dbf_san_id - SAN trace record identifier
	113	* @ZFCP_DBF_SAN_REQ: request trace record id
	114	* @ZFCP_DBF_SAN_RES: response trace record id
	115	* @ZFCP_DBF_SAN_ELS: extended link service record id
	116	*/
	117	enum zfcp_dbf_san_id {
	118	ZFCP_DBF_SAN_REQ = 1,
	119	ZFCP_DBF_SAN_RES = 2,
	120	ZFCP_DBF_SAN_ELS = 3,
	121	};
	122
	123	/** struct zfcp_dbf_san - trace record for SAN requests and responses
	124	* @id: unique number of recovery record type
	125	* @tag: identifier string specifying the location of initiation
	126	* @fsf_req_id: request id for fsf requests
	127	* @payload: unformatted information related to request/response
	128	* @d_id: destination id
	129	*/
	130	struct zfcp_dbf_san {
	131	u8 id;
	132	char tag[ZFCP_DBF_TAG_LEN];
	133	u64 fsf_req_id;
	134	u32 d_id;
	135	#define ZFCP_DBF_SAN_MAX_PAYLOAD (FC_CT_HDR_LEN + 32)
	136	char payload[ZFCP_DBF_SAN_MAX_PAYLOAD];
	137	} __packed;
	138
5771710b	139	struct zfcp_dbf_hba_record_response {
2b604c9b CS	140	u32 fsf_command;
	141	u64 fsf_reqid;
	142	u32 fsf_seqno;
	143	u64 fsf_issued;
	144	u32 fsf_prot_status;
	145	u32 fsf_status;
	146	u8 fsf_prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
	147	u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
	148	u32 fsf_req_status;
	149	u8 sbal_first;
e891bffe	150	u8 sbal_last;
c3baa9a2	151	u8 sbal_response;
2b604c9b CS	152	u8 pool;
	153	u64 erp_action;
	154	union {
	155	struct {
6bc473dd	156	u64 cmnd;
ef3eb71d	157	u32 data_dir;
6bc473dd	158	} fcp;
2b604c9b CS	159	struct {
	160	u64 wwpn;
	161	u32 d_id;
	162	u32 port_handle;
	163	} port;
	164	struct {
	165	u64 wwpn;
	166	u64 fcp_lun;
	167	u32 port_handle;
	168	u32 lun_handle;
	169	} unit;
	170	struct {
	171	u32 d_id;
6bc473dd MP	172	} els;
6bc473dd MP	173	} u;
2b604c9b CS	174	} __attribute__ ((packed));
2b604c9b CS	175
5771710b	176	struct zfcp_dbf_hba_record_status {
2b604c9b CS	177	u8 failed;
	178	u32 status_type;
	179	u32 status_subtype;
	180	struct fsf_queue_designator
	181	queue_designator;
	182	u32 payload_size;
	183	#define ZFCP_DBF_UNSOL_PAYLOAD 80
	184	#define ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL 32
	185	#define ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD 56
	186	#define ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT 2 * sizeof(u32)
	187	u8 payload[ZFCP_DBF_UNSOL_PAYLOAD];
	188	} __attribute__ ((packed));
	189
5771710b	190	struct zfcp_dbf_hba_record_qdio {
2b604c9b	191	u32 qdio_error;
2b604c9b CS	192	u8 sbal_index;
	193	u8 sbal_count;
	194	} __attribute__ ((packed));
	195
5771710b	196	struct zfcp_dbf_hba_record {
2b604c9b CS	197	u8 tag[ZFCP_DBF_TAG_SIZE];
	198	u8 tag2[ZFCP_DBF_TAG_SIZE];
	199	union {
5771710b SS	200	struct zfcp_dbf_hba_record_response response;
	201	struct zfcp_dbf_hba_record_status status;
	202	struct zfcp_dbf_hba_record_qdio qdio;
57069386	203	struct fsf_bit_error_payload berr;
6bc473dd	204	} u;
2b604c9b CS	205	} __attribute__ ((packed));
2b604c9b CS	206
5771710b	207	struct zfcp_dbf_scsi_record {
2b604c9b CS	208	u8 tag[ZFCP_DBF_TAG_SIZE];
	209	u8 tag2[ZFCP_DBF_TAG_SIZE];
	210	u32 scsi_id;
	211	u32 scsi_lun;
	212	u32 scsi_result;
	213	u64 scsi_cmnd;
2b604c9b CS	214	#define ZFCP_DBF_SCSI_OPCODE 16
	215	u8 scsi_opcode[ZFCP_DBF_SCSI_OPCODE];
	216	u8 scsi_retries;
	217	u8 scsi_allowed;
	218	u64 fsf_reqid;
	219	u32 fsf_seqno;
	220	u64 fsf_issued;
6bc473dd MP	221	u64 old_fsf_reqid;
	222	u8 rsp_validity;
	223	u8 rsp_scsi_status;
	224	u32 rsp_resid;
	225	u8 rsp_code;
2b604c9b CS	226	#define ZFCP_DBF_SCSI_FCP_SNS_INFO 16
2b604c9b CS	227	#define ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO 256
6bc473dd MP	228	u32 sns_info_len;
6bc473dd MP	229	u8 sns_info[ZFCP_DBF_SCSI_FCP_SNS_INFO];
2b604c9b CS	230	} __attribute__ ((packed));
2b604c9b CS	231
d46f384a	232	struct zfcp_dbf {
5771710b SS	233	debug_info_t *rec;
	234	debug_info_t *hba;
	235	debug_info_t *san;
	236	debug_info_t *scsi;
	237	spinlock_t rec_lock;
	238	spinlock_t hba_lock;
	239	spinlock_t san_lock;
	240	spinlock_t scsi_lock;
ae0904f6	241	struct zfcp_dbf_rec rec_buf;
5771710b	242	struct zfcp_dbf_hba_record hba_buf;
2c55b750	243	struct zfcp_dbf_san san_buf;
5771710b SS	244	struct zfcp_dbf_scsi_record scsi_buf;
5771710b SS	245	struct zfcp_adapter *adapter;
d46f384a CS	246	};
d46f384a CS	247
2e261af8	248	static inline
5771710b SS	249	void zfcp_dbf_hba_fsf_resp(const char *tag2, int level,
5771710b SS	250	struct zfcp_fsf_req req, struct zfcp_dbf dbf)
2e261af8	251	{
5771710b SS	252	if (level <= dbf->hba->level)
5771710b SS	253	_zfcp_dbf_hba_fsf_response(tag2, level, req, dbf);
2e261af8 CS	254	}
	255
	256	/**
5771710b	257	* zfcp_dbf_hba_fsf_response - trace event for request completion
2e261af8 CS	258	* @fsf_req: request that has been completed
2e261af8 CS	259	*/
5771710b	260	static inline void zfcp_dbf_hba_fsf_response(struct zfcp_fsf_req *req)
2e261af8 CS	261	{
	262	struct zfcp_dbf *dbf = req->adapter->dbf;
	263	struct fsf_qtcb *qtcb = req->qtcb;
	264
	265	if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
	266	(qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) {
5771710b	267	zfcp_dbf_hba_fsf_resp("perr", 1, req, dbf);
2e261af8 CS	268
2e261af8 CS	269	} else if (qtcb->header.fsf_status != FSF_GOOD) {
5771710b	270	zfcp_dbf_hba_fsf_resp("ferr", 1, req, dbf);
2e261af8 CS	271
	272	} else if ((req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) \|\|
	273	(req->fsf_command == FSF_QTCB_OPEN_LUN)) {
5771710b	274	zfcp_dbf_hba_fsf_resp("open", 4, req, dbf);
2e261af8 CS	275
2e261af8 CS	276	} else if (qtcb->header.log_length) {
5771710b	277	zfcp_dbf_hba_fsf_resp("qtcb", 5, req, dbf);
2e261af8 CS	278
2e261af8 CS	279	} else {
5771710b	280	zfcp_dbf_hba_fsf_resp("norm", 6, req, dbf);
2e261af8 CS	281	}
	282	}
	283
	284	/**
5771710b	285	* zfcp_dbf_hba_fsf_unsol - trace event for an unsolicited status buffer
2e261af8	286	* @tag: tag indicating which kind of unsolicited status has been received
5771710b	287	* @dbf: reference to dbf structure
2e261af8 CS	288	* @status_buffer: buffer containing payload of unsolicited status
	289	*/
	290	static inline
5771710b SS	291	void zfcp_dbf_hba_fsf_unsol(const char tag, struct zfcp_dbf dbf,
5771710b SS	292	struct fsf_status_read_buffer *buf)
2e261af8	293	{
2e261af8 CS	294	int level = 2;
2e261af8 CS	295
5771710b SS	296	if (level <= dbf->hba->level)
5771710b SS	297	_zfcp_dbf_hba_fsf_unsol(tag, level, dbf, buf);
2e261af8 CS	298	}
2e261af8 CS	299
dcd20e23	300	static inline
5771710b SS	301	void zfcp_dbf_scsi(const char tag, const char tag2, int level,
	302	struct zfcp_dbf dbf, struct scsi_cmnd scmd,
	303	struct zfcp_fsf_req *req, unsigned long old_id)
dcd20e23	304	{
5771710b SS	305	if (level <= dbf->scsi->level)
5771710b SS	306	_zfcp_dbf_scsi(tag, tag2, level, dbf, scmd, req, old_id);
dcd20e23 CS	307	}
	308
	309	/**
5771710b	310	* zfcp_dbf_scsi_result - trace event for SCSI command completion
ab72528a	311	* @dbf: adapter dbf trace
dcd20e23	312	* @scmd: SCSI command pointer
ab72528a	313	* @req: FSF request used to issue SCSI command
dcd20e23 CS	314	*/
dcd20e23 CS	315	static inline
ab72528a CS	316	void zfcp_dbf_scsi_result(struct zfcp_dbf dbf, struct scsi_cmnd scmd,
ab72528a CS	317	struct zfcp_fsf_req *req)
dcd20e23	318	{
ab72528a CS	319	if (scmd->result != 0)
	320	zfcp_dbf_scsi("rslt", "erro", 3, dbf, scmd, req, 0);
	321	else if (scmd->retries > 0)
	322	zfcp_dbf_scsi("rslt", "retr", 4, dbf, scmd, req, 0);
	323	else
	324	zfcp_dbf_scsi("rslt", "norm", 6, dbf, scmd, req, 0);
	325	}
	326
	327	/**
	328	* zfcp_dbf_scsi_fail_send - trace event for failure to send SCSI command
	329	* @dbf: adapter dbf trace
	330	* @scmd: SCSI command pointer
	331	*/
	332	static inline
	333	void zfcp_dbf_scsi_fail_send(struct zfcp_dbf dbf, struct scsi_cmnd scmd)
	334	{
	335	zfcp_dbf_scsi("rslt", "fail", 4, dbf, scmd, NULL, 0);
dcd20e23 CS	336	}
	337
	338	/**
5771710b	339	* zfcp_dbf_scsi_abort - trace event for SCSI command abort
dcd20e23 CS	340	* @tag: tag indicating success or failure of abort operation
	341	* @adapter: adapter thas has been used to issue SCSI command to be aborted
	342	* @scmd: SCSI command to be aborted
	343	* @new_req: request containing abort (might be NULL)
	344	* @old_id: identifier of request containg SCSI command to be aborted
	345	*/
	346	static inline
5771710b SS	347	void zfcp_dbf_scsi_abort(const char tag, struct zfcp_dbf dbf,
	348	struct scsi_cmnd scmd, struct zfcp_fsf_req new_req,
	349	unsigned long old_id)
dcd20e23	350	{
5771710b	351	zfcp_dbf_scsi("abrt", tag, 1, dbf, scmd, new_req, old_id);
dcd20e23 CS	352	}
	353
	354	/**
5771710b	355	* zfcp_dbf_scsi_devreset - trace event for Logical Unit or Target Reset
dcd20e23	356	* @tag: tag indicating success or failure of reset operation
b62a8d9b	357	* @scmnd: SCSI command which caused this error recovery
dcd20e23	358	* @flag: indicates type of reset (Target Reset, Logical Unit Reset)
dcd20e23 CS	359	*/
dcd20e23 CS	360	static inline
b62a8d9b	361	void zfcp_dbf_scsi_devreset(const char tag, struct scsi_cmnd scmnd, u8 flag)
dcd20e23	362	{
b62a8d9b CS	363	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scmnd->device);
b62a8d9b CS	364
4318e08c	365	zfcp_dbf_scsi(flag == FCP_TMF_TGT_RESET ? "trst" : "lrst", tag, 1,
b62a8d9b	366	zfcp_sdev->port->adapter->dbf, scmnd, NULL, 0);
dcd20e23 CS	367	}
dcd20e23 CS	368
2b604c9b	369	#endif /* ZFCP_DBF_H */