| /* |
| * This file is part of the zfcp device driver for |
| * FCP adapters for IBM System z9 and zSeries. |
| * |
| * (C) Copyright IBM Corp. 2002, 2006 |
| * |
| * 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. |
| */ |
| |
| #include <linux/ctype.h> |
| #include <asm/debug.h> |
| #include "zfcp_ext.h" |
| |
| static u32 dbfsize = 4; |
| |
| module_param(dbfsize, uint, 0400); |
| MODULE_PARM_DESC(dbfsize, |
| "number of pages for each debug feature area (default 4)"); |
| |
| #define ZFCP_LOG_AREA ZFCP_LOG_AREA_OTHER |
| |
| static int |
| zfcp_dbf_stck(char *out_buf, const char *label, unsigned long long stck) |
| { |
| unsigned long long sec; |
| struct timespec dbftime; |
| int len = 0; |
| |
| stck -= 0x8126d60e46000000LL - (0x3c26700LL * 1000000 * 4096); |
| sec = stck >> 12; |
| do_div(sec, 1000000); |
| dbftime.tv_sec = sec; |
| stck -= (sec * 1000000) << 12; |
| dbftime.tv_nsec = ((stck * 1000) >> 12); |
| len += sprintf(out_buf + len, "%-24s%011lu:%06lu\n", |
| label, dbftime.tv_sec, dbftime.tv_nsec); |
| |
| return len; |
| } |
| |
| static int zfcp_dbf_tag(char *out_buf, const char *label, const char *tag) |
| { |
| int len = 0, i; |
| |
| len += sprintf(out_buf + len, "%-24s", label); |
| for (i = 0; i < ZFCP_DBF_TAG_SIZE; i++) |
| len += sprintf(out_buf + len, "%c", tag[i]); |
| len += sprintf(out_buf + len, "\n"); |
| |
| return len; |
| } |
| |
| static int |
| zfcp_dbf_view(char *out_buf, const char *label, const char *format, ...) |
| { |
| va_list arg; |
| int len = 0; |
| |
| len += sprintf(out_buf + len, "%-24s", label); |
| va_start(arg, format); |
| len += vsprintf(out_buf + len, format, arg); |
| va_end(arg); |
| len += sprintf(out_buf + len, "\n"); |
| |
| return len; |
| } |
| |
| static int |
| zfcp_dbf_view_dump(char *out_buf, const char *label, |
| char *buffer, int buflen, int offset, int total_size) |
| { |
| int len = 0; |
| |
| if (offset == 0) |
| len += sprintf(out_buf + len, "%-24s ", label); |
| |
| while (buflen--) { |
| if (offset > 0) { |
| if ((offset % 32) == 0) |
| len += sprintf(out_buf + len, "\n%-24c ", ' '); |
| else if ((offset % 4) == 0) |
| len += sprintf(out_buf + len, " "); |
| } |
| len += sprintf(out_buf + len, "%02x", *buffer++); |
| if (++offset == total_size) { |
| len += sprintf(out_buf + len, "\n"); |
| break; |
| } |
| } |
| |
| if (total_size == 0) |
| len += sprintf(out_buf + len, "\n"); |
| |
| return len; |
| } |
| |
| static int |
| zfcp_dbf_view_header(debug_info_t * id, struct debug_view *view, int area, |
| debug_entry_t * entry, char *out_buf) |
| { |
| struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)DEBUG_DATA(entry); |
| int len = 0; |
| |
| if (strncmp(dump->tag, "dump", ZFCP_DBF_TAG_SIZE) != 0) { |
| len += zfcp_dbf_stck(out_buf + len, "timestamp", |
| entry->id.stck); |
| len += zfcp_dbf_view(out_buf + len, "cpu", "%02i", |
| entry->id.fields.cpuid); |
| } else { |
| len += zfcp_dbf_view_dump(out_buf + len, NULL, |
| dump->data, |
| dump->size, |
| dump->offset, dump->total_size); |
| if ((dump->offset + dump->size) == dump->total_size) |
| len += sprintf(out_buf + len, "\n"); |
| } |
| |
| return len; |
| } |
| |
| void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *fsf_req) |
| { |
| struct zfcp_adapter *adapter = fsf_req->adapter; |
| struct fsf_qtcb *qtcb = fsf_req->qtcb; |
| union fsf_prot_status_qual *prot_status_qual = |
| &qtcb->prefix.prot_status_qual; |
| union fsf_status_qual *fsf_status_qual = &qtcb->header.fsf_status_qual; |
| struct scsi_cmnd *scsi_cmnd; |
| struct zfcp_port *port; |
| struct zfcp_unit *unit; |
| struct zfcp_send_els *send_els; |
| struct zfcp_hba_dbf_record *rec = &adapter->hba_dbf_buf; |
| struct zfcp_hba_dbf_record_response *response = &rec->type.response; |
| int level; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&adapter->hba_dbf_lock, flags); |
| memset(rec, 0, sizeof(struct zfcp_hba_dbf_record)); |
| strncpy(rec->tag, "resp", ZFCP_DBF_TAG_SIZE); |
| |
| if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) && |
| (qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) { |
| strncpy(rec->tag2, "perr", ZFCP_DBF_TAG_SIZE); |
| level = 1; |
| } else if (qtcb->header.fsf_status != FSF_GOOD) { |
| strncpy(rec->tag2, "ferr", ZFCP_DBF_TAG_SIZE); |
| level = 1; |
| } else if ((fsf_req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) || |
| (fsf_req->fsf_command == FSF_QTCB_OPEN_LUN)) { |
| strncpy(rec->tag2, "open", ZFCP_DBF_TAG_SIZE); |
| level = 4; |
| } else { |
| strncpy(rec->tag2, "norm", ZFCP_DBF_TAG_SIZE); |
| level = 6; |
| } |
| |
| response->fsf_command = fsf_req->fsf_command; |
| response->fsf_reqid = (unsigned long)fsf_req; |
| response->fsf_seqno = fsf_req->seq_no; |
| response->fsf_issued = fsf_req->issued; |
| response->fsf_prot_status = qtcb->prefix.prot_status; |
| response->fsf_status = qtcb->header.fsf_status; |
| memcpy(response->fsf_prot_status_qual, |
| prot_status_qual, FSF_PROT_STATUS_QUAL_SIZE); |
| memcpy(response->fsf_status_qual, |
| fsf_status_qual, FSF_STATUS_QUALIFIER_SIZE); |
| response->fsf_req_status = fsf_req->status; |
| response->sbal_first = fsf_req->sbal_first; |
| response->sbal_curr = fsf_req->sbal_curr; |
| response->sbal_last = fsf_req->sbal_last; |
| response->pool = fsf_req->pool != NULL; |
| response->erp_action = (unsigned long)fsf_req->erp_action; |
| |
| switch (fsf_req->fsf_command) { |
| case FSF_QTCB_FCP_CMND: |
| if (fsf_req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) |
| break; |
| scsi_cmnd = (struct scsi_cmnd *)fsf_req->data; |
| if (scsi_cmnd != NULL) { |
| response->data.send_fcp.scsi_cmnd |
| = (unsigned long)scsi_cmnd; |
| response->data.send_fcp.scsi_serial |
| = scsi_cmnd->serial_number; |
| } |
| break; |
| |
| case FSF_QTCB_OPEN_PORT_WITH_DID: |
| case FSF_QTCB_CLOSE_PORT: |
| case FSF_QTCB_CLOSE_PHYSICAL_PORT: |
| port = (struct zfcp_port *)fsf_req->data; |
| response->data.port.wwpn = port->wwpn; |
| response->data.port.d_id = port->d_id; |
| response->data.port.port_handle = qtcb->header.port_handle; |
| break; |
| |
| case FSF_QTCB_OPEN_LUN: |
| case FSF_QTCB_CLOSE_LUN: |
| unit = (struct zfcp_unit *)fsf_req->data; |
| port = unit->port; |
| response->data.unit.wwpn = port->wwpn; |
| response->data.unit.fcp_lun = unit->fcp_lun; |
| response->data.unit.port_handle = qtcb->header.port_handle; |
| response->data.unit.lun_handle = qtcb->header.lun_handle; |
| break; |
| |
| case FSF_QTCB_SEND_ELS: |
| send_els = (struct zfcp_send_els *)fsf_req->data; |
| response->data.send_els.d_id = qtcb->bottom.support.d_id; |
| response->data.send_els.ls_code = send_els->ls_code >> 24; |
| 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; |
| } |
| |
| debug_event(adapter->hba_dbf, level, |
| rec, sizeof(struct zfcp_hba_dbf_record)); |
| spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags); |
| } |
| |
| void |
| zfcp_hba_dbf_event_fsf_unsol(const char *tag, struct zfcp_adapter *adapter, |
| struct fsf_status_read_buffer *status_buffer) |
| { |
| struct zfcp_hba_dbf_record *rec = &adapter->hba_dbf_buf; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&adapter->hba_dbf_lock, flags); |
| memset(rec, 0, sizeof(struct zfcp_hba_dbf_record)); |
| strncpy(rec->tag, "stat", ZFCP_DBF_TAG_SIZE); |
| strncpy(rec->tag2, tag, ZFCP_DBF_TAG_SIZE); |
| |
| rec->type.status.failed = adapter->status_read_failed; |
| if (status_buffer != NULL) { |
| rec->type.status.status_type = status_buffer->status_type; |
| rec->type.status.status_subtype = status_buffer->status_subtype; |
| memcpy(&rec->type.status.queue_designator, |
| &status_buffer->queue_designator, |
| sizeof(struct fsf_queue_designator)); |
| |
| switch (status_buffer->status_type) { |
| case FSF_STATUS_READ_SENSE_DATA_AVAIL: |
| rec->type.status.payload_size = |
| ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL; |
| break; |
| |
| case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: |
| rec->type.status.payload_size = |
| ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD; |
| break; |
| |
| case FSF_STATUS_READ_LINK_DOWN: |
| switch (status_buffer->status_subtype) { |
| case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: |
| case FSF_STATUS_READ_SUB_FDISC_FAILED: |
| rec->type.status.payload_size = |
| sizeof(struct fsf_link_down_info); |
| } |
| break; |
| |
| case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: |
| rec->type.status.payload_size = |
| ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT; |
| break; |
| } |
| memcpy(&rec->type.status.payload, |
| &status_buffer->payload, rec->type.status.payload_size); |
| } |
| |
| debug_event(adapter->hba_dbf, 2, |
| rec, sizeof(struct zfcp_hba_dbf_record)); |
| spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags); |
| } |
| |
| void |
| zfcp_hba_dbf_event_qdio(struct zfcp_adapter *adapter, unsigned int status, |
| unsigned int qdio_error, unsigned int siga_error, |
| int sbal_index, int sbal_count) |
| { |
| struct zfcp_hba_dbf_record *rec = &adapter->hba_dbf_buf; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&adapter->hba_dbf_lock, flags); |
| memset(rec, 0, sizeof(struct zfcp_hba_dbf_record)); |
| strncpy(rec->tag, "qdio", ZFCP_DBF_TAG_SIZE); |
| rec->type.qdio.status = status; |
| rec->type.qdio.qdio_error = qdio_error; |
| rec->type.qdio.siga_error = siga_error; |
| rec->type.qdio.sbal_index = sbal_index; |
| rec->type.qdio.sbal_count = sbal_count; |
| debug_event(adapter->hba_dbf, 0, |
| rec, sizeof(struct zfcp_hba_dbf_record)); |
| spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags); |
| } |
| |
| static int |
| zfcp_hba_dbf_view_response(char *out_buf, |
| struct zfcp_hba_dbf_record_response *rec) |
| { |
| int len = 0; |
| |
| len += zfcp_dbf_view(out_buf + len, "fsf_command", "0x%08x", |
| 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 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 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; |
| } |
| |
| static struct debug_view zfcp_hba_dbf_view = { |
| "structured", |
| NULL, |
| &zfcp_dbf_view_header, |
| &zfcp_hba_dbf_view_format, |
| NULL, |
| NULL |
| }; |
| |
| static 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); |
| } |
| |
| 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); |
| } |
| |
| 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 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); |
| } |
| |
| 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); |
| } |
| |
| 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); |
| } |
| |
| 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", |
| rec->type.ct.type.request.max_res_size); |
| total = rec->type.ct.payload_size; |
| buffer = rec->type.ct.payload; |
| buflen = min(total, ZFCP_DBF_CT_PAYLOAD); |
| } else if (strncmp(rec->tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) { |
| len += zfcp_dbf_view(out_buf + len, "cmd_rsp_code", "0x%04x", |
| rec->type.ct.type.response.cmd_rsp_code); |
| len += zfcp_dbf_view(out_buf + len, "revision", "0x%02x", |
| rec->type.ct.type.response.revision); |
| len += zfcp_dbf_view(out_buf + len, "reason_code", "0x%02x", |
| rec->type.ct.type.response.reason_code); |
| len += |
| zfcp_dbf_view(out_buf + len, "reason_code_expl", "0x%02x", |
| rec->type.ct.type.response.reason_code_expl); |
| len += |
| zfcp_dbf_view(out_buf + len, "vendor_unique", "0x%02x", |
| rec->type.ct.type.response.vendor_unique); |
| total = rec->type.ct.payload_size; |
| buffer = rec->type.ct.payload; |
| buflen = min(total, ZFCP_DBF_CT_PAYLOAD); |
| } else if (strncmp(rec->tag, "oels", ZFCP_DBF_TAG_SIZE) == 0 || |
| strncmp(rec->tag, "rels", ZFCP_DBF_TAG_SIZE) == 0 || |
| strncmp(rec->tag, "iels", ZFCP_DBF_TAG_SIZE) == 0) { |
| len += zfcp_dbf_view(out_buf + len, "ls_code", "0x%02x", |
| rec->type.els.ls_code); |
| total = rec->type.els.payload_size; |
| buffer = rec->type.els.payload; |
| buflen = min(total, ZFCP_DBF_ELS_PAYLOAD); |
| } |
| |
| len += zfcp_dbf_view_dump(out_buf + len, "payload", |
| buffer, buflen, 0, total); |
| |
| if (buflen == total) |
| len += sprintf(out_buf + len, "\n"); |
| |
| return len; |
| } |
| |
| static struct debug_view zfcp_san_dbf_view = { |
| "structured", |
| NULL, |
| &zfcp_dbf_view_header, |
| &zfcp_san_dbf_view_format, |
| NULL, |
| NULL |
| }; |
| |
| static void |
| _zfcp_scsi_dbf_event_common(const char *tag, const char *tag2, int level, |
| struct zfcp_adapter *adapter, |
| struct scsi_cmnd *scsi_cmnd, |
| struct zfcp_fsf_req *fsf_req, |
| unsigned long old_req_id) |
| { |
| struct zfcp_scsi_dbf_record *rec = &adapter->scsi_dbf_buf; |
| struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec; |
| unsigned long flags; |
| struct fcp_rsp_iu *fcp_rsp; |
| char *fcp_rsp_info = NULL, *fcp_sns_info = NULL; |
| int offset = 0, buflen = 0; |
| |
| spin_lock_irqsave(&adapter->scsi_dbf_lock, flags); |
| do { |
| memset(rec, 0, sizeof(struct zfcp_scsi_dbf_record)); |
| if (offset == 0) { |
| strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE); |
| strncpy(rec->tag2, tag2, ZFCP_DBF_TAG_SIZE); |
| if (scsi_cmnd != NULL) { |
| if (scsi_cmnd->device) { |
| rec->scsi_id = scsi_cmnd->device->id; |
| rec->scsi_lun = scsi_cmnd->device->lun; |
| } |
| rec->scsi_result = scsi_cmnd->result; |
| rec->scsi_cmnd = (unsigned long)scsi_cmnd; |
| rec->scsi_serial = scsi_cmnd->serial_number; |
| memcpy(rec->scsi_opcode, &scsi_cmnd->cmnd, |
| min((int)scsi_cmnd->cmd_len, |
| ZFCP_DBF_SCSI_OPCODE)); |
| rec->scsi_retries = scsi_cmnd->retries; |
| rec->scsi_allowed = scsi_cmnd->allowed; |
| } |
| if (fsf_req != NULL) { |
| fcp_rsp = (struct fcp_rsp_iu *) |
| &(fsf_req->qtcb->bottom.io.fcp_rsp); |
| fcp_rsp_info = |
| zfcp_get_fcp_rsp_info_ptr(fcp_rsp); |
| fcp_sns_info = |
| zfcp_get_fcp_sns_info_ptr(fcp_rsp); |
| |
| rec->type.fcp.rsp_validity = |
| fcp_rsp->validity.value; |
| rec->type.fcp.rsp_scsi_status = |
| fcp_rsp->scsi_status; |
| rec->type.fcp.rsp_resid = fcp_rsp->fcp_resid; |
| if (fcp_rsp->validity.bits.fcp_rsp_len_valid) |
| rec->type.fcp.rsp_code = |
| *(fcp_rsp_info + 3); |
| if (fcp_rsp->validity.bits.fcp_sns_len_valid) { |
| buflen = min((int)fcp_rsp->fcp_sns_len, |
| ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO); |
| rec->type.fcp.sns_info_len = buflen; |
| memcpy(rec->type.fcp.sns_info, |
| fcp_sns_info, |
| min(buflen, |
| ZFCP_DBF_SCSI_FCP_SNS_INFO)); |
| offset += min(buflen, |
| ZFCP_DBF_SCSI_FCP_SNS_INFO); |
| } |
| |
| rec->fsf_reqid = (unsigned long)fsf_req; |
| rec->fsf_seqno = fsf_req->seq_no; |
| rec->fsf_issued = fsf_req->issued; |
| } |
| rec->type.old_fsf_reqid = old_req_id; |
| } 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_scsi_dbf_record) - |
| (int)sizeof(struct zfcp_dbf_dump)); |
| memcpy(dump->data, fcp_sns_info + offset, dump->size); |
| offset += dump->size; |
| } |
| debug_event(adapter->scsi_dbf, level, |
| rec, sizeof(struct zfcp_scsi_dbf_record)); |
| } while (offset < buflen); |
| spin_unlock_irqrestore(&adapter->scsi_dbf_lock, flags); |
| } |
| |
| void |
| zfcp_scsi_dbf_event_result(const char *tag, int level, |
| struct zfcp_adapter *adapter, |
| struct scsi_cmnd *scsi_cmnd, |
| struct zfcp_fsf_req *fsf_req) |
| { |
| _zfcp_scsi_dbf_event_common("rslt", tag, level, |
| adapter, scsi_cmnd, fsf_req, 0); |
| } |
| |
| void |
| zfcp_scsi_dbf_event_abort(const char *tag, struct zfcp_adapter *adapter, |
| struct scsi_cmnd *scsi_cmnd, |
| struct zfcp_fsf_req *new_fsf_req, |
| unsigned long old_req_id) |
| { |
| _zfcp_scsi_dbf_event_common("abrt", tag, 1, |
| adapter, scsi_cmnd, new_fsf_req, old_req_id); |
| } |
| |
| void |
| zfcp_scsi_dbf_event_devreset(const char *tag, u8 flag, struct zfcp_unit *unit, |
| struct scsi_cmnd *scsi_cmnd) |
| { |
| struct zfcp_adapter *adapter = unit->port->adapter; |
| |
| _zfcp_scsi_dbf_event_common(flag == FCP_TARGET_RESET ? "trst" : "lrst", |
| tag, 1, adapter, scsi_cmnd, NULL, 0); |
| } |
| |
| static int |
| zfcp_scsi_dbf_view_format(debug_info_t * id, struct debug_view *view, |
| char *out_buf, const char *in_buf) |
| { |
| struct zfcp_scsi_dbf_record *rec = |
| (struct zfcp_scsi_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); |
| len += zfcp_dbf_tag(out_buf + len, "tag2", rec->tag2); |
| len += zfcp_dbf_view(out_buf + len, "scsi_id", "0x%08x", rec->scsi_id); |
| len += zfcp_dbf_view(out_buf + len, "scsi_lun", "0x%08x", |
| rec->scsi_lun); |
| len += zfcp_dbf_view(out_buf + len, "scsi_result", "0x%08x", |
| rec->scsi_result); |
| len += zfcp_dbf_view(out_buf + len, "scsi_cmnd", "0x%0Lx", |
| rec->scsi_cmnd); |
| len += zfcp_dbf_view(out_buf + len, "scsi_serial", "0x%016Lx", |
| rec->scsi_serial); |
| len += zfcp_dbf_view_dump(out_buf + len, "scsi_opcode", |
| rec->scsi_opcode, |
| ZFCP_DBF_SCSI_OPCODE, |
| 0, ZFCP_DBF_SCSI_OPCODE); |
| len += zfcp_dbf_view(out_buf + len, "scsi_retries", "0x%02x", |
| rec->scsi_retries); |
| len += zfcp_dbf_view(out_buf + len, "scsi_allowed", "0x%02x", |
| rec->scsi_allowed); |
| if (strncmp(rec->tag, "abrt", ZFCP_DBF_TAG_SIZE) == 0) { |
| len += zfcp_dbf_view(out_buf + len, "old_fsf_reqid", "0x%0Lx", |
| rec->type.old_fsf_reqid); |
| } |
| 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); |
| if (strncmp(rec->tag, "rslt", ZFCP_DBF_TAG_SIZE) == 0) { |
| len += |
| zfcp_dbf_view(out_buf + len, "fcp_rsp_validity", "0x%02x", |
| rec->type.fcp.rsp_validity); |
| len += |
| zfcp_dbf_view(out_buf + len, "fcp_rsp_scsi_status", |
| "0x%02x", rec->type.fcp.rsp_scsi_status); |
| len += |
| zfcp_dbf_view(out_buf + len, "fcp_rsp_resid", "0x%08x", |
| rec->type.fcp.rsp_resid); |
| len += |
| zfcp_dbf_view(out_buf + len, "fcp_rsp_code", "0x%08x", |
| rec->type.fcp.rsp_code); |
| len += |
| zfcp_dbf_view(out_buf + len, "fcp_sns_info_len", "0x%08x", |
| rec->type.fcp.sns_info_len); |
| len += |
| zfcp_dbf_view_dump(out_buf + len, "fcp_sns_info", |
| rec->type.fcp.sns_info, |
| min((int)rec->type.fcp.sns_info_len, |
| ZFCP_DBF_SCSI_FCP_SNS_INFO), 0, |
| rec->type.fcp.sns_info_len); |
| } |
| |
| len += sprintf(out_buf + len, "\n"); |
| |
| return len; |
| } |
| |
| static struct debug_view zfcp_scsi_dbf_view = { |
| "structured", |
| NULL, |
| &zfcp_dbf_view_header, |
| &zfcp_scsi_dbf_view_format, |
| NULL, |
| NULL |
| }; |
| |
| /** |
| * zfcp_adapter_debug_register - registers debug feature for an adapter |
| * @adapter: pointer to adapter for which debug features should be registered |
| * return: -ENOMEM on error, 0 otherwise |
| */ |
| int zfcp_adapter_debug_register(struct zfcp_adapter *adapter) |
| { |
| char dbf_name[DEBUG_MAX_NAME_LEN]; |
| |
| /* debug feature area which records recovery activity */ |
| sprintf(dbf_name, "zfcp_%s_erp", zfcp_get_busid_by_adapter(adapter)); |
| adapter->erp_dbf = debug_register(dbf_name, dbfsize, 2, |
| sizeof(struct zfcp_erp_dbf_record)); |
| if (!adapter->erp_dbf) |
| goto failed; |
| debug_register_view(adapter->erp_dbf, &debug_hex_ascii_view); |
| debug_set_level(adapter->erp_dbf, 3); |
| |
| /* debug feature area which records HBA (FSF and QDIO) conditions */ |
| sprintf(dbf_name, "zfcp_%s_hba", zfcp_get_busid_by_adapter(adapter)); |
| adapter->hba_dbf = debug_register(dbf_name, dbfsize, 1, |
| sizeof(struct zfcp_hba_dbf_record)); |
| if (!adapter->hba_dbf) |
| goto failed; |
| debug_register_view(adapter->hba_dbf, &debug_hex_ascii_view); |
| debug_register_view(adapter->hba_dbf, &zfcp_hba_dbf_view); |
| debug_set_level(adapter->hba_dbf, 3); |
| |
| /* debug feature area which records SAN command failures and recovery */ |
| sprintf(dbf_name, "zfcp_%s_san", zfcp_get_busid_by_adapter(adapter)); |
| adapter->san_dbf = debug_register(dbf_name, dbfsize, 1, |
| sizeof(struct zfcp_san_dbf_record)); |
| if (!adapter->san_dbf) |
| goto failed; |
| debug_register_view(adapter->san_dbf, &debug_hex_ascii_view); |
| debug_register_view(adapter->san_dbf, &zfcp_san_dbf_view); |
| debug_set_level(adapter->san_dbf, 6); |
| |
| /* debug feature area which records SCSI command failures and recovery */ |
| sprintf(dbf_name, "zfcp_%s_scsi", zfcp_get_busid_by_adapter(adapter)); |
| adapter->scsi_dbf = debug_register(dbf_name, dbfsize, 1, |
| sizeof(struct zfcp_scsi_dbf_record)); |
| if (!adapter->scsi_dbf) |
| goto failed; |
| debug_register_view(adapter->scsi_dbf, &debug_hex_ascii_view); |
| debug_register_view(adapter->scsi_dbf, &zfcp_scsi_dbf_view); |
| debug_set_level(adapter->scsi_dbf, 3); |
| |
| return 0; |
| |
| failed: |
| zfcp_adapter_debug_unregister(adapter); |
| |
| return -ENOMEM; |
| } |
| |
| /** |
| * zfcp_adapter_debug_unregister - unregisters debug feature for an adapter |
| * @adapter: pointer to adapter for which debug features should be unregistered |
| */ |
| void zfcp_adapter_debug_unregister(struct zfcp_adapter *adapter) |
| { |
| debug_unregister(adapter->scsi_dbf); |
| debug_unregister(adapter->san_dbf); |
| debug_unregister(adapter->hba_dbf); |
| debug_unregister(adapter->erp_dbf); |
| adapter->scsi_dbf = NULL; |
| adapter->san_dbf = NULL; |
| adapter->hba_dbf = NULL; |
| adapter->erp_dbf = NULL; |
| } |
| |
| #undef ZFCP_LOG_AREA |