zfcp_dbf.c

linux-2.6.15.6

			     rec->fsf_command);
	len += zfcp_dbf_view(out_buf + len, "fsf_reqid", "0x%0Lx",
			     rec->fsf_reqid);
	len += zfcp_dbf_view(out_buf + len, "fsf_seqno", "0x%08x",
			     rec->fsf_seqno);
	len += zfcp_dbf_stck(out_buf + len, "fsf_issued", rec->fsf_issued);
	len += zfcp_dbf_view(out_buf + len, "fsf_prot_status", "0x%08x",
			     rec->fsf_prot_status);
	len += zfcp_dbf_view(out_buf + len, "fsf_status", "0x%08x",
			     rec->fsf_status);
	len += zfcp_dbf_view_dump(out_buf + len, "fsf_prot_status_qual",
				  rec->fsf_prot_status_qual,
				  FSF_PROT_STATUS_QUAL_SIZE,
				  0, FSF_PROT_STATUS_QUAL_SIZE);
	len += zfcp_dbf_view_dump(out_buf + len, "fsf_status_qual",
				  rec->fsf_status_qual,
				  FSF_STATUS_QUALIFIER_SIZE,
				  0, FSF_STATUS_QUALIFIER_SIZE);
	len += zfcp_dbf_view(out_buf + len, "fsf_req_status", "0x%08x",
			     rec->fsf_req_status);
	len += zfcp_dbf_view(out_buf + len, "sbal_first", "0x%02x",
			     rec->sbal_first);
	len += zfcp_dbf_view(out_buf + len, "sbal_curr", "0x%02x",
			     rec->sbal_curr);
	len += zfcp_dbf_view(out_buf + len, "sbal_last", "0x%02x",
			     rec->sbal_last);
	len += zfcp_dbf_view(out_buf + len, "pool", "0x%02x", rec->pool);

	switch (rec->fsf_command) {
	case FSF_QTCB_FCP_CMND:
		if (rec->fsf_req_status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
			break;
		len += zfcp_dbf_view(out_buf + len, "scsi_cmnd", "0x%0Lx",
				     rec->data.send_fcp.scsi_cmnd);
		len += zfcp_dbf_view(out_buf + len, "scsi_serial", "0x%016Lx",
				     rec->data.send_fcp.scsi_serial);
		break;

	case FSF_QTCB_OPEN_PORT_WITH_DID:
	case FSF_QTCB_CLOSE_PORT:
	case FSF_QTCB_CLOSE_PHYSICAL_PORT:
		len += zfcp_dbf_view(out_buf + len, "wwpn", "0x%016Lx",
				     rec->data.port.wwpn);
		len += zfcp_dbf_view(out_buf + len, "d_id", "0x%06x",
				     rec->data.port.d_id);
		len += zfcp_dbf_view(out_buf + len, "port_handle", "0x%08x",
				     rec->data.port.port_handle);
		break;

	case FSF_QTCB_OPEN_LUN:
	case FSF_QTCB_CLOSE_LUN:
		len += zfcp_dbf_view(out_buf + len, "wwpn", "0x%016Lx",
				     rec->data.unit.wwpn);
		len += zfcp_dbf_view(out_buf + len, "fcp_lun", "0x%016Lx",
				     rec->data.unit.fcp_lun);
		len += zfcp_dbf_view(out_buf + len, "port_handle", "0x%08x",
				     rec->data.unit.port_handle);
		len += zfcp_dbf_view(out_buf + len, "lun_handle", "0x%08x",
				     rec->data.unit.lun_handle);
		break;

	case FSF_QTCB_SEND_ELS:
		len += zfcp_dbf_view(out_buf + len, "d_id", "0x%06x",
				     rec->data.send_els.d_id);
		len += zfcp_dbf_view(out_buf + len, "ls_code", "0x%02x",
				     rec->data.send_els.ls_code);
		break;

	case FSF_QTCB_ABORT_FCP_CMND:
	case FSF_QTCB_SEND_GENERIC:
	case FSF_QTCB_EXCHANGE_CONFIG_DATA:
	case FSF_QTCB_EXCHANGE_PORT_DATA:
	case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
	case FSF_QTCB_UPLOAD_CONTROL_FILE:
		break;
	}

	return len;
}

static inline int
zfcp_hba_dbf_view_status(char *out_buf, struct zfcp_hba_dbf_record_status *rec)
{
	int len = 0;

	len += zfcp_dbf_view(out_buf + len, "failed", "0x%02x", rec->failed);
	len += zfcp_dbf_view(out_buf + len, "status_type", "0x%08x",
			     rec->status_type);
	len += zfcp_dbf_view(out_buf + len, "status_subtype", "0x%08x",
			     rec->status_subtype);
	len += zfcp_dbf_view_dump(out_buf + len, "queue_designator",
				  (char *)&rec->queue_designator,
				  sizeof(struct fsf_queue_designator),
				  0, sizeof(struct fsf_queue_designator));
	len += zfcp_dbf_view_dump(out_buf + len, "payload",
				  (char *)&rec->payload,
				  rec->payload_size, 0, rec->payload_size);

	return len;
}

static inline int
zfcp_hba_dbf_view_qdio(char *out_buf, struct zfcp_hba_dbf_record_qdio *rec)
{
	int len = 0;

	len += zfcp_dbf_view(out_buf + len, "status", "0x%08x", rec->status);
	len += zfcp_dbf_view(out_buf + len, "qdio_error", "0x%08x",
			     rec->qdio_error);
	len += zfcp_dbf_view(out_buf + len, "siga_error", "0x%08x",
			     rec->siga_error);
	len += zfcp_dbf_view(out_buf + len, "sbal_index", "0x%02x",
			     rec->sbal_index);
	len += zfcp_dbf_view(out_buf + len, "sbal_count", "0x%02x",
			     rec->sbal_count);

	return len;
}

static int
zfcp_hba_dbf_view_format(debug_info_t * id, struct debug_view *view,
			 char *out_buf, const char *in_buf)
{
	struct zfcp_hba_dbf_record *rec = (struct zfcp_hba_dbf_record *)in_buf;
	int len = 0;

	if (strncmp(rec->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
		return 0;

	len += zfcp_dbf_tag(out_buf + len, "tag", rec->tag);
	if (isalpha(rec->tag2[0]))
		len += zfcp_dbf_tag(out_buf + len, "tag2", rec->tag2);
	if (strncmp(rec->tag, "resp", ZFCP_DBF_TAG_SIZE) == 0)
		len += zfcp_hba_dbf_view_response(out_buf + len,
						  &rec->type.response);
	else if (strncmp(rec->tag, "stat", ZFCP_DBF_TAG_SIZE) == 0)
		len += zfcp_hba_dbf_view_status(out_buf + len,
						&rec->type.status);
	else if (strncmp(rec->tag, "qdio", ZFCP_DBF_TAG_SIZE) == 0)
		len += zfcp_hba_dbf_view_qdio(out_buf + len, &rec->type.qdio);

	len += sprintf(out_buf + len, "\n");

	return len;
}

struct debug_view zfcp_hba_dbf_view = {
	"structured",
	NULL,
	&zfcp_dbf_view_header,
	&zfcp_hba_dbf_view_format,
	NULL,
	NULL
};

inline void
_zfcp_san_dbf_event_common_ct(const char *tag, struct zfcp_fsf_req *fsf_req,
			      u32 s_id, u32 d_id, void *buffer, int buflen)
{
	struct zfcp_send_ct *send_ct = (struct zfcp_send_ct *)fsf_req->data;
	struct zfcp_port *port = send_ct->port;
	struct zfcp_adapter *adapter = port->adapter;
	struct ct_hdr *header = (struct ct_hdr *)buffer;
	struct zfcp_san_dbf_record *rec = &adapter->san_dbf_buf;
	struct zfcp_san_dbf_record_ct *ct = &rec->type.ct;
	unsigned long flags;

	spin_lock_irqsave(&adapter->san_dbf_lock, flags);
	memset(rec, 0, sizeof(struct zfcp_san_dbf_record));
	strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
	rec->fsf_reqid = (unsigned long)fsf_req;
	rec->fsf_seqno = fsf_req->seq_no;
	rec->s_id = s_id;
	rec->d_id = d_id;
	if (strncmp(tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
		ct->type.request.cmd_req_code = header->cmd_rsp_code;
		ct->type.request.revision = header->revision;
		ct->type.request.gs_type = header->gs_type;
		ct->type.request.gs_subtype = header->gs_subtype;
		ct->type.request.options = header->options;
		ct->type.request.max_res_size = header->max_res_size;
	} else if (strncmp(tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) {
		ct->type.response.cmd_rsp_code = header->cmd_rsp_code;
		ct->type.response.revision = header->revision;
		ct->type.response.reason_code = header->reason_code;
		ct->type.response.reason_code_expl = header->reason_code_expl;
		ct->type.response.vendor_unique = header->vendor_unique;
	}
	ct->payload_size =
	    min(buflen - (int)sizeof(struct ct_hdr), ZFCP_DBF_CT_PAYLOAD);
	memcpy(ct->payload, buffer + sizeof(struct ct_hdr), ct->payload_size);
	debug_event(adapter->san_dbf, 3,
		    rec, sizeof(struct zfcp_san_dbf_record));
	spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
}

inline void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *fsf_req)
{
	struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
	struct zfcp_port *port = ct->port;
	struct zfcp_adapter *adapter = port->adapter;

	_zfcp_san_dbf_event_common_ct("octc", fsf_req,
				      fc_host_port_id(adapter->scsi_host),
				      port->d_id, zfcp_sg_to_address(ct->req),
				      ct->req->length);
}

inline void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *fsf_req)
{
	struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
	struct zfcp_port *port = ct->port;
	struct zfcp_adapter *adapter = port->adapter;

	_zfcp_san_dbf_event_common_ct("rctc", fsf_req, port->d_id,
				      fc_host_port_id(adapter->scsi_host),
				      zfcp_sg_to_address(ct->resp),
				      ct->resp->length);
}

static inline void
_zfcp_san_dbf_event_common_els(const char *tag, int level,
			       struct zfcp_fsf_req *fsf_req, u32 s_id,
			       u32 d_id, u8 ls_code, void *buffer, int buflen)
{
	struct zfcp_adapter *adapter = fsf_req->adapter;
	struct zfcp_san_dbf_record *rec = &adapter->san_dbf_buf;
	struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec;
	unsigned long flags;
	int offset = 0;

	spin_lock_irqsave(&adapter->san_dbf_lock, flags);
	do {
		memset(rec, 0, sizeof(struct zfcp_san_dbf_record));
		if (offset == 0) {
			strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
			rec->fsf_reqid = (unsigned long)fsf_req;
			rec->fsf_seqno = fsf_req->seq_no;
			rec->s_id = s_id;
			rec->d_id = d_id;
			rec->type.els.ls_code = ls_code;
			buflen = min(buflen, ZFCP_DBF_ELS_MAX_PAYLOAD);
			rec->type.els.payload_size = buflen;
			memcpy(rec->type.els.payload,
			       buffer, min(buflen, ZFCP_DBF_ELS_PAYLOAD));
			offset += min(buflen, ZFCP_DBF_ELS_PAYLOAD);
		} else {
			strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
			dump->total_size = buflen;
			dump->offset = offset;
			dump->size = min(buflen - offset,
					 (int)sizeof(struct zfcp_san_dbf_record)
					 - (int)sizeof(struct zfcp_dbf_dump));
			memcpy(dump->data, buffer + offset, dump->size);
			offset += dump->size;
		}
		debug_event(adapter->san_dbf, level,
			    rec, sizeof(struct zfcp_san_dbf_record));
	} while (offset < buflen);
	spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
}

inline void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *fsf_req)
{
	struct zfcp_send_els *els = (struct zfcp_send_els *)fsf_req->data;

	_zfcp_san_dbf_event_common_els("oels", 2, fsf_req,
				       fc_host_port_id(els->adapter->scsi_host),
				       els->d_id,
				       *(u8 *) zfcp_sg_to_address(els->req),
				       zfcp_sg_to_address(els->req),
				       els->req->length);
}

inline void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *fsf_req)
{
	struct zfcp_send_els *els = (struct zfcp_send_els *)fsf_req->data;

	_zfcp_san_dbf_event_common_els("rels", 2, fsf_req, els->d_id,
				       fc_host_port_id(els->adapter->scsi_host),
				       *(u8 *) zfcp_sg_to_address(els->req),
				       zfcp_sg_to_address(els->resp),
				       els->resp->length);
}

inline void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *fsf_req)
{
	struct zfcp_adapter *adapter = fsf_req->adapter;
	struct fsf_status_read_buffer *status_buffer =
	    (struct fsf_status_read_buffer *)fsf_req->data;
	int length = (int)status_buffer->length -
	    (int)((void *)&status_buffer->payload - (void *)status_buffer);

	_zfcp_san_dbf_event_common_els("iels", 1, fsf_req, status_buffer->d_id,
				       fc_host_port_id(adapter->scsi_host),
				       *(u8 *) status_buffer->payload,
				       (void *)status_buffer->payload, length);
}

static int
zfcp_san_dbf_view_format(debug_info_t * id, struct debug_view *view,
			 char *out_buf, const char *in_buf)
{
	struct zfcp_san_dbf_record *rec = (struct zfcp_san_dbf_record *)in_buf;
	char *buffer = NULL;
	int buflen = 0, total = 0;
	int len = 0;

	if (strncmp(rec->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
		return 0;

	len += zfcp_dbf_tag(out_buf + len, "tag", rec->tag);
	len += zfcp_dbf_view(out_buf + len, "fsf_reqid", "0x%0Lx",
			     rec->fsf_reqid);
	len += zfcp_dbf_view(out_buf + len, "fsf_seqno", "0x%08x",
			     rec->fsf_seqno);
	len += zfcp_dbf_view(out_buf + len, "s_id", "0x%06x", rec->s_id);
	len += zfcp_dbf_view(out_buf + len, "d_id", "0x%06x", rec->d_id);

	if (strncmp(rec->tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
		len += zfcp_dbf_view(out_buf + len, "cmd_req_code", "0x%04x",
				     rec->type.ct.type.request.cmd_req_code);
		len += zfcp_dbf_view(out_buf + len, "revision", "0x%02x",
				     rec->type.ct.type.request.revision);
		len += zfcp_dbf_view(out_buf + len, "gs_type", "0x%02x",
				     rec->type.ct.type.request.gs_type);
		len += zfcp_dbf_view(out_buf + len, "gs_subtype", "0x%02x",
				     rec->type.ct.type.request.gs_subtype);
		len += zfcp_dbf_view(out_buf + len, "options", "0x%02x",
				     rec->type.ct.type.request.options);
		len += zfcp_dbf_view(out_buf + len, "max_res_size", "0x%04x",