1074 lines
35 KiB
C
1074 lines
35 KiB
C
/*
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* zfcp device driver
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*
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* Debug traces for zfcp.
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*
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* Copyright IBM Corporation 2002, 2009
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*/
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#define KMSG_COMPONENT "zfcp"
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#include <linux/ctype.h>
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#include <linux/slab.h>
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#include <asm/debug.h>
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#include "zfcp_dbf.h"
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#include "zfcp_ext.h"
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#include "zfcp_fc.h"
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static u32 dbfsize = 4;
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module_param(dbfsize, uint, 0400);
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MODULE_PARM_DESC(dbfsize,
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"number of pages for each debug feature area (default 4)");
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static void zfcp_dbf_hexdump(debug_info_t *dbf, void *to, int to_len,
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int level, char *from, int from_len)
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{
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int offset;
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struct zfcp_dbf_dump *dump = to;
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int room = to_len - sizeof(*dump);
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for (offset = 0; offset < from_len; offset += dump->size) {
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memset(to, 0, to_len);
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strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
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dump->total_size = from_len;
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dump->offset = offset;
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dump->size = min(from_len - offset, room);
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memcpy(dump->data, from + offset, dump->size);
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debug_event(dbf, level, dump, dump->size + sizeof(*dump));
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}
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}
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static void zfcp_dbf_tag(char **p, const char *label, const char *tag)
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{
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int i;
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*p += sprintf(*p, "%-24s", label);
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for (i = 0; i < ZFCP_DBF_TAG_SIZE; i++)
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*p += sprintf(*p, "%c", tag[i]);
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*p += sprintf(*p, "\n");
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}
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static void zfcp_dbf_outs(char **buf, const char *s1, const char *s2)
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{
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*buf += sprintf(*buf, "%-24s%s\n", s1, s2);
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}
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static void zfcp_dbf_out(char **buf, const char *s, const char *format, ...)
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{
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va_list arg;
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*buf += sprintf(*buf, "%-24s", s);
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va_start(arg, format);
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*buf += vsprintf(*buf, format, arg);
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va_end(arg);
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*buf += sprintf(*buf, "\n");
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}
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static void zfcp_dbf_outd(char **p, const char *label, char *buffer,
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int buflen, int offset, int total_size)
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{
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if (!offset)
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*p += sprintf(*p, "%-24s ", label);
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while (buflen--) {
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if (offset > 0) {
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if ((offset % 32) == 0)
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*p += sprintf(*p, "\n%-24c ", ' ');
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else if ((offset % 4) == 0)
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*p += sprintf(*p, " ");
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}
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*p += sprintf(*p, "%02x", *buffer++);
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if (++offset == total_size) {
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*p += sprintf(*p, "\n");
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break;
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}
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}
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if (!total_size)
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*p += sprintf(*p, "\n");
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}
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static int zfcp_dbf_view_header(debug_info_t *id, struct debug_view *view,
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int area, debug_entry_t *entry, char *out_buf)
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{
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struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)DEBUG_DATA(entry);
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struct timespec t;
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char *p = out_buf;
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if (strncmp(dump->tag, "dump", ZFCP_DBF_TAG_SIZE) != 0) {
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stck_to_timespec(entry->id.stck, &t);
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zfcp_dbf_out(&p, "timestamp", "%011lu:%06lu",
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t.tv_sec, t.tv_nsec);
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zfcp_dbf_out(&p, "cpu", "%02i", entry->id.fields.cpuid);
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} else {
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zfcp_dbf_outd(&p, "", dump->data, dump->size, dump->offset,
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dump->total_size);
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if ((dump->offset + dump->size) == dump->total_size)
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p += sprintf(p, "\n");
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}
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return p - out_buf;
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}
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void _zfcp_dbf_hba_fsf_response(const char *tag2, int level,
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struct zfcp_fsf_req *fsf_req,
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struct zfcp_dbf *dbf)
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{
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struct fsf_qtcb *qtcb = fsf_req->qtcb;
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union fsf_prot_status_qual *prot_status_qual =
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&qtcb->prefix.prot_status_qual;
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union fsf_status_qual *fsf_status_qual = &qtcb->header.fsf_status_qual;
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struct scsi_cmnd *scsi_cmnd;
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struct zfcp_port *port;
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struct zfcp_unit *unit;
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struct zfcp_send_els *send_els;
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struct zfcp_dbf_hba_record *rec = &dbf->hba_buf;
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struct zfcp_dbf_hba_record_response *response = &rec->u.response;
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unsigned long flags;
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spin_lock_irqsave(&dbf->hba_lock, flags);
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memset(rec, 0, sizeof(*rec));
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strncpy(rec->tag, "resp", ZFCP_DBF_TAG_SIZE);
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strncpy(rec->tag2, tag2, ZFCP_DBF_TAG_SIZE);
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response->fsf_command = fsf_req->fsf_command;
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response->fsf_reqid = fsf_req->req_id;
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response->fsf_seqno = fsf_req->seq_no;
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response->fsf_issued = fsf_req->issued;
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response->fsf_prot_status = qtcb->prefix.prot_status;
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response->fsf_status = qtcb->header.fsf_status;
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memcpy(response->fsf_prot_status_qual,
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prot_status_qual, FSF_PROT_STATUS_QUAL_SIZE);
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memcpy(response->fsf_status_qual,
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fsf_status_qual, FSF_STATUS_QUALIFIER_SIZE);
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response->fsf_req_status = fsf_req->status;
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response->sbal_first = fsf_req->qdio_req.sbal_first;
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response->sbal_last = fsf_req->qdio_req.sbal_last;
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response->sbal_response = fsf_req->qdio_req.sbal_response;
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response->pool = fsf_req->pool != NULL;
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response->erp_action = (unsigned long)fsf_req->erp_action;
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switch (fsf_req->fsf_command) {
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case FSF_QTCB_FCP_CMND:
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if (fsf_req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
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break;
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scsi_cmnd = (struct scsi_cmnd *)fsf_req->data;
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if (scsi_cmnd) {
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response->u.fcp.cmnd = (unsigned long)scsi_cmnd;
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response->u.fcp.serial = scsi_cmnd->serial_number;
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response->u.fcp.data_dir =
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qtcb->bottom.io.data_direction;
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}
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break;
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case FSF_QTCB_OPEN_PORT_WITH_DID:
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case FSF_QTCB_CLOSE_PORT:
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case FSF_QTCB_CLOSE_PHYSICAL_PORT:
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port = (struct zfcp_port *)fsf_req->data;
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response->u.port.wwpn = port->wwpn;
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response->u.port.d_id = port->d_id;
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response->u.port.port_handle = qtcb->header.port_handle;
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break;
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case FSF_QTCB_OPEN_LUN:
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case FSF_QTCB_CLOSE_LUN:
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unit = (struct zfcp_unit *)fsf_req->data;
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port = unit->port;
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response->u.unit.wwpn = port->wwpn;
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response->u.unit.fcp_lun = unit->fcp_lun;
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response->u.unit.port_handle = qtcb->header.port_handle;
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response->u.unit.lun_handle = qtcb->header.lun_handle;
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break;
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case FSF_QTCB_SEND_ELS:
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send_els = (struct zfcp_send_els *)fsf_req->data;
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response->u.els.d_id = ntoh24(qtcb->bottom.support.d_id);
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break;
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case FSF_QTCB_ABORT_FCP_CMND:
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case FSF_QTCB_SEND_GENERIC:
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case FSF_QTCB_EXCHANGE_CONFIG_DATA:
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case FSF_QTCB_EXCHANGE_PORT_DATA:
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case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
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case FSF_QTCB_UPLOAD_CONTROL_FILE:
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break;
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}
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debug_event(dbf->hba, level, rec, sizeof(*rec));
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/* have fcp channel microcode fixed to use as little as possible */
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if (fsf_req->fsf_command != FSF_QTCB_FCP_CMND) {
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/* adjust length skipping trailing zeros */
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char *buf = (char *)qtcb + qtcb->header.log_start;
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int len = qtcb->header.log_length;
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for (; len && !buf[len - 1]; len--);
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zfcp_dbf_hexdump(dbf->hba, rec, sizeof(*rec), level, buf,
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len);
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}
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spin_unlock_irqrestore(&dbf->hba_lock, flags);
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}
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void _zfcp_dbf_hba_fsf_unsol(const char *tag, int level, struct zfcp_dbf *dbf,
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struct fsf_status_read_buffer *status_buffer)
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{
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struct zfcp_dbf_hba_record *rec = &dbf->hba_buf;
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unsigned long flags;
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spin_lock_irqsave(&dbf->hba_lock, flags);
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memset(rec, 0, sizeof(*rec));
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strncpy(rec->tag, "stat", ZFCP_DBF_TAG_SIZE);
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strncpy(rec->tag2, tag, ZFCP_DBF_TAG_SIZE);
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rec->u.status.failed = atomic_read(&dbf->adapter->stat_miss);
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if (status_buffer != NULL) {
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rec->u.status.status_type = status_buffer->status_type;
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rec->u.status.status_subtype = status_buffer->status_subtype;
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memcpy(&rec->u.status.queue_designator,
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&status_buffer->queue_designator,
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sizeof(struct fsf_queue_designator));
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switch (status_buffer->status_type) {
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case FSF_STATUS_READ_SENSE_DATA_AVAIL:
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rec->u.status.payload_size =
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ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL;
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break;
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case FSF_STATUS_READ_BIT_ERROR_THRESHOLD:
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rec->u.status.payload_size =
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ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD;
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break;
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case FSF_STATUS_READ_LINK_DOWN:
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switch (status_buffer->status_subtype) {
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case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
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case FSF_STATUS_READ_SUB_FDISC_FAILED:
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rec->u.status.payload_size =
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sizeof(struct fsf_link_down_info);
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}
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break;
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case FSF_STATUS_READ_FEATURE_UPDATE_ALERT:
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rec->u.status.payload_size =
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ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT;
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break;
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}
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memcpy(&rec->u.status.payload,
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&status_buffer->payload, rec->u.status.payload_size);
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}
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debug_event(dbf->hba, level, rec, sizeof(*rec));
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spin_unlock_irqrestore(&dbf->hba_lock, flags);
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}
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/**
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* zfcp_dbf_hba_qdio - trace event for QDIO related failure
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* @qdio: qdio structure affected by this QDIO related event
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* @qdio_error: as passed by qdio module
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* @sbal_index: first buffer with error condition, as passed by qdio module
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* @sbal_count: number of buffers affected, as passed by qdio module
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*/
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void zfcp_dbf_hba_qdio(struct zfcp_dbf *dbf, unsigned int qdio_error,
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int sbal_index, int sbal_count)
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{
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struct zfcp_dbf_hba_record *r = &dbf->hba_buf;
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unsigned long flags;
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spin_lock_irqsave(&dbf->hba_lock, flags);
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memset(r, 0, sizeof(*r));
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strncpy(r->tag, "qdio", ZFCP_DBF_TAG_SIZE);
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r->u.qdio.qdio_error = qdio_error;
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r->u.qdio.sbal_index = sbal_index;
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r->u.qdio.sbal_count = sbal_count;
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debug_event(dbf->hba, 0, r, sizeof(*r));
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spin_unlock_irqrestore(&dbf->hba_lock, flags);
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}
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/**
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* zfcp_dbf_hba_berr - trace event for bit error threshold
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* @dbf: dbf structure affected by this QDIO related event
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* @req: fsf request
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*/
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void zfcp_dbf_hba_berr(struct zfcp_dbf *dbf, struct zfcp_fsf_req *req)
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{
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struct zfcp_dbf_hba_record *r = &dbf->hba_buf;
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struct fsf_status_read_buffer *sr_buf = req->data;
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struct fsf_bit_error_payload *err = &sr_buf->payload.bit_error;
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unsigned long flags;
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spin_lock_irqsave(&dbf->hba_lock, flags);
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memset(r, 0, sizeof(*r));
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strncpy(r->tag, "berr", ZFCP_DBF_TAG_SIZE);
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memcpy(&r->u.berr, err, sizeof(struct fsf_bit_error_payload));
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debug_event(dbf->hba, 0, r, sizeof(*r));
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spin_unlock_irqrestore(&dbf->hba_lock, flags);
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}
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static void zfcp_dbf_hba_view_response(char **p,
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struct zfcp_dbf_hba_record_response *r)
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{
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struct timespec t;
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zfcp_dbf_out(p, "fsf_command", "0x%08x", r->fsf_command);
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zfcp_dbf_out(p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
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zfcp_dbf_out(p, "fsf_seqno", "0x%08x", r->fsf_seqno);
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stck_to_timespec(r->fsf_issued, &t);
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zfcp_dbf_out(p, "fsf_issued", "%011lu:%06lu", t.tv_sec, t.tv_nsec);
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zfcp_dbf_out(p, "fsf_prot_status", "0x%08x", r->fsf_prot_status);
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zfcp_dbf_out(p, "fsf_status", "0x%08x", r->fsf_status);
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zfcp_dbf_outd(p, "fsf_prot_status_qual", r->fsf_prot_status_qual,
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FSF_PROT_STATUS_QUAL_SIZE, 0, FSF_PROT_STATUS_QUAL_SIZE);
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zfcp_dbf_outd(p, "fsf_status_qual", r->fsf_status_qual,
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FSF_STATUS_QUALIFIER_SIZE, 0, FSF_STATUS_QUALIFIER_SIZE);
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zfcp_dbf_out(p, "fsf_req_status", "0x%08x", r->fsf_req_status);
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zfcp_dbf_out(p, "sbal_first", "0x%02x", r->sbal_first);
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zfcp_dbf_out(p, "sbal_last", "0x%02x", r->sbal_last);
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zfcp_dbf_out(p, "sbal_response", "0x%02x", r->sbal_response);
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zfcp_dbf_out(p, "pool", "0x%02x", r->pool);
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switch (r->fsf_command) {
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case FSF_QTCB_FCP_CMND:
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if (r->fsf_req_status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
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break;
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zfcp_dbf_out(p, "data_direction", "0x%04x", r->u.fcp.data_dir);
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zfcp_dbf_out(p, "scsi_cmnd", "0x%0Lx", r->u.fcp.cmnd);
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zfcp_dbf_out(p, "scsi_serial", "0x%016Lx", r->u.fcp.serial);
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*p += sprintf(*p, "\n");
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break;
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case FSF_QTCB_OPEN_PORT_WITH_DID:
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case FSF_QTCB_CLOSE_PORT:
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case FSF_QTCB_CLOSE_PHYSICAL_PORT:
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zfcp_dbf_out(p, "wwpn", "0x%016Lx", r->u.port.wwpn);
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zfcp_dbf_out(p, "d_id", "0x%06x", r->u.port.d_id);
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zfcp_dbf_out(p, "port_handle", "0x%08x", r->u.port.port_handle);
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break;
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case FSF_QTCB_OPEN_LUN:
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case FSF_QTCB_CLOSE_LUN:
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zfcp_dbf_out(p, "wwpn", "0x%016Lx", r->u.unit.wwpn);
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zfcp_dbf_out(p, "fcp_lun", "0x%016Lx", r->u.unit.fcp_lun);
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zfcp_dbf_out(p, "port_handle", "0x%08x", r->u.unit.port_handle);
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zfcp_dbf_out(p, "lun_handle", "0x%08x", r->u.unit.lun_handle);
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break;
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case FSF_QTCB_SEND_ELS:
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zfcp_dbf_out(p, "d_id", "0x%06x", r->u.els.d_id);
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break;
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case FSF_QTCB_ABORT_FCP_CMND:
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case FSF_QTCB_SEND_GENERIC:
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case FSF_QTCB_EXCHANGE_CONFIG_DATA:
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case FSF_QTCB_EXCHANGE_PORT_DATA:
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case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
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case FSF_QTCB_UPLOAD_CONTROL_FILE:
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break;
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}
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}
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static void zfcp_dbf_hba_view_status(char **p,
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struct zfcp_dbf_hba_record_status *r)
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{
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zfcp_dbf_out(p, "failed", "0x%02x", r->failed);
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zfcp_dbf_out(p, "status_type", "0x%08x", r->status_type);
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zfcp_dbf_out(p, "status_subtype", "0x%08x", r->status_subtype);
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zfcp_dbf_outd(p, "queue_designator", (char *)&r->queue_designator,
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sizeof(struct fsf_queue_designator), 0,
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sizeof(struct fsf_queue_designator));
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zfcp_dbf_outd(p, "payload", (char *)&r->payload, r->payload_size, 0,
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r->payload_size);
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}
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static void zfcp_dbf_hba_view_qdio(char **p, struct zfcp_dbf_hba_record_qdio *r)
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{
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zfcp_dbf_out(p, "qdio_error", "0x%08x", r->qdio_error);
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zfcp_dbf_out(p, "sbal_index", "0x%02x", r->sbal_index);
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zfcp_dbf_out(p, "sbal_count", "0x%02x", r->sbal_count);
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}
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static void zfcp_dbf_hba_view_berr(char **p, struct fsf_bit_error_payload *r)
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{
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zfcp_dbf_out(p, "link_failures", "%d", r->link_failure_error_count);
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zfcp_dbf_out(p, "loss_of_sync_err", "%d", r->loss_of_sync_error_count);
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zfcp_dbf_out(p, "loss_of_sig_err", "%d", r->loss_of_signal_error_count);
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|
zfcp_dbf_out(p, "prim_seq_err", "%d",
|
|
r->primitive_sequence_error_count);
|
|
zfcp_dbf_out(p, "inval_trans_word_err", "%d",
|
|
r->invalid_transmission_word_error_count);
|
|
zfcp_dbf_out(p, "CRC_errors", "%d", r->crc_error_count);
|
|
zfcp_dbf_out(p, "prim_seq_event_to", "%d",
|
|
r->primitive_sequence_event_timeout_count);
|
|
zfcp_dbf_out(p, "elast_buf_overrun_err", "%d",
|
|
r->elastic_buffer_overrun_error_count);
|
|
zfcp_dbf_out(p, "adv_rec_buf2buf_cred", "%d",
|
|
r->advertised_receive_b2b_credit);
|
|
zfcp_dbf_out(p, "curr_rec_buf2buf_cred", "%d",
|
|
r->current_receive_b2b_credit);
|
|
zfcp_dbf_out(p, "adv_trans_buf2buf_cred", "%d",
|
|
r->advertised_transmit_b2b_credit);
|
|
zfcp_dbf_out(p, "curr_trans_buf2buf_cred", "%d",
|
|
r->current_transmit_b2b_credit);
|
|
}
|
|
|
|
static int zfcp_dbf_hba_view_format(debug_info_t *id, struct debug_view *view,
|
|
char *out_buf, const char *in_buf)
|
|
{
|
|
struct zfcp_dbf_hba_record *r = (struct zfcp_dbf_hba_record *)in_buf;
|
|
char *p = out_buf;
|
|
|
|
if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
|
|
return 0;
|
|
|
|
zfcp_dbf_tag(&p, "tag", r->tag);
|
|
if (isalpha(r->tag2[0]))
|
|
zfcp_dbf_tag(&p, "tag2", r->tag2);
|
|
|
|
if (strncmp(r->tag, "resp", ZFCP_DBF_TAG_SIZE) == 0)
|
|
zfcp_dbf_hba_view_response(&p, &r->u.response);
|
|
else if (strncmp(r->tag, "stat", ZFCP_DBF_TAG_SIZE) == 0)
|
|
zfcp_dbf_hba_view_status(&p, &r->u.status);
|
|
else if (strncmp(r->tag, "qdio", ZFCP_DBF_TAG_SIZE) == 0)
|
|
zfcp_dbf_hba_view_qdio(&p, &r->u.qdio);
|
|
else if (strncmp(r->tag, "berr", ZFCP_DBF_TAG_SIZE) == 0)
|
|
zfcp_dbf_hba_view_berr(&p, &r->u.berr);
|
|
|
|
if (strncmp(r->tag, "resp", ZFCP_DBF_TAG_SIZE) != 0)
|
|
p += sprintf(p, "\n");
|
|
return p - out_buf;
|
|
}
|
|
|
|
static struct debug_view zfcp_dbf_hba_view = {
|
|
.name = "structured",
|
|
.header_proc = zfcp_dbf_view_header,
|
|
.format_proc = zfcp_dbf_hba_view_format,
|
|
};
|
|
|
|
static const char *zfcp_dbf_rec_tags[] = {
|
|
[ZFCP_REC_DBF_ID_THREAD] = "thread",
|
|
[ZFCP_REC_DBF_ID_TARGET] = "target",
|
|
[ZFCP_REC_DBF_ID_TRIGGER] = "trigger",
|
|
[ZFCP_REC_DBF_ID_ACTION] = "action",
|
|
};
|
|
|
|
static int zfcp_dbf_rec_view_format(debug_info_t *id, struct debug_view *view,
|
|
char *buf, const char *_rec)
|
|
{
|
|
struct zfcp_dbf_rec_record *r = (struct zfcp_dbf_rec_record *)_rec;
|
|
char *p = buf;
|
|
char hint[ZFCP_DBF_ID_SIZE + 1];
|
|
|
|
memcpy(hint, r->id2, ZFCP_DBF_ID_SIZE);
|
|
hint[ZFCP_DBF_ID_SIZE] = 0;
|
|
zfcp_dbf_outs(&p, "tag", zfcp_dbf_rec_tags[r->id]);
|
|
zfcp_dbf_outs(&p, "hint", hint);
|
|
switch (r->id) {
|
|
case ZFCP_REC_DBF_ID_THREAD:
|
|
zfcp_dbf_out(&p, "total", "%d", r->u.thread.total);
|
|
zfcp_dbf_out(&p, "ready", "%d", r->u.thread.ready);
|
|
zfcp_dbf_out(&p, "running", "%d", r->u.thread.running);
|
|
break;
|
|
case ZFCP_REC_DBF_ID_TARGET:
|
|
zfcp_dbf_out(&p, "reference", "0x%016Lx", r->u.target.ref);
|
|
zfcp_dbf_out(&p, "status", "0x%08x", r->u.target.status);
|
|
zfcp_dbf_out(&p, "erp_count", "%d", r->u.target.erp_count);
|
|
zfcp_dbf_out(&p, "d_id", "0x%06x", r->u.target.d_id);
|
|
zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.target.wwpn);
|
|
zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.target.fcp_lun);
|
|
break;
|
|
case ZFCP_REC_DBF_ID_TRIGGER:
|
|
zfcp_dbf_out(&p, "reference", "0x%016Lx", r->u.trigger.ref);
|
|
zfcp_dbf_out(&p, "erp_action", "0x%016Lx", r->u.trigger.action);
|
|
zfcp_dbf_out(&p, "requested", "%d", r->u.trigger.want);
|
|
zfcp_dbf_out(&p, "executed", "%d", r->u.trigger.need);
|
|
zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.trigger.wwpn);
|
|
zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.trigger.fcp_lun);
|
|
zfcp_dbf_out(&p, "adapter_status", "0x%08x", r->u.trigger.as);
|
|
zfcp_dbf_out(&p, "port_status", "0x%08x", r->u.trigger.ps);
|
|
zfcp_dbf_out(&p, "unit_status", "0x%08x", r->u.trigger.us);
|
|
break;
|
|
case ZFCP_REC_DBF_ID_ACTION:
|
|
zfcp_dbf_out(&p, "erp_action", "0x%016Lx", r->u.action.action);
|
|
zfcp_dbf_out(&p, "fsf_req", "0x%016Lx", r->u.action.fsf_req);
|
|
zfcp_dbf_out(&p, "status", "0x%08Lx", r->u.action.status);
|
|
zfcp_dbf_out(&p, "step", "0x%08Lx", r->u.action.step);
|
|
break;
|
|
}
|
|
p += sprintf(p, "\n");
|
|
return p - buf;
|
|
}
|
|
|
|
static struct debug_view zfcp_dbf_rec_view = {
|
|
.name = "structured",
|
|
.header_proc = zfcp_dbf_view_header,
|
|
.format_proc = zfcp_dbf_rec_view_format,
|
|
};
|
|
|
|
/**
|
|
* zfcp_dbf_rec_thread - trace event related to recovery thread operation
|
|
* @id2: identifier for event
|
|
* @dbf: reference to dbf structure
|
|
* This function assumes that the caller is holding erp_lock.
|
|
*/
|
|
void zfcp_dbf_rec_thread(char *id2, struct zfcp_dbf *dbf)
|
|
{
|
|
struct zfcp_adapter *adapter = dbf->adapter;
|
|
struct zfcp_dbf_rec_record *r = &dbf->rec_buf;
|
|
unsigned long flags = 0;
|
|
struct list_head *entry;
|
|
unsigned ready = 0, running = 0, total;
|
|
|
|
list_for_each(entry, &adapter->erp_ready_head)
|
|
ready++;
|
|
list_for_each(entry, &adapter->erp_running_head)
|
|
running++;
|
|
total = adapter->erp_total_count;
|
|
|
|
spin_lock_irqsave(&dbf->rec_lock, flags);
|
|
memset(r, 0, sizeof(*r));
|
|
r->id = ZFCP_REC_DBF_ID_THREAD;
|
|
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
|
|
r->u.thread.total = total;
|
|
r->u.thread.ready = ready;
|
|
r->u.thread.running = running;
|
|
debug_event(dbf->rec, 6, r, sizeof(*r));
|
|
spin_unlock_irqrestore(&dbf->rec_lock, flags);
|
|
}
|
|
|
|
/**
|
|
* zfcp_dbf_rec_thread - trace event related to recovery thread operation
|
|
* @id2: identifier for event
|
|
* @adapter: adapter
|
|
* This function assumes that the caller does not hold erp_lock.
|
|
*/
|
|
void zfcp_dbf_rec_thread_lock(char *id2, struct zfcp_dbf *dbf)
|
|
{
|
|
struct zfcp_adapter *adapter = dbf->adapter;
|
|
unsigned long flags;
|
|
|
|
read_lock_irqsave(&adapter->erp_lock, flags);
|
|
zfcp_dbf_rec_thread(id2, dbf);
|
|
read_unlock_irqrestore(&adapter->erp_lock, flags);
|
|
}
|
|
|
|
static void zfcp_dbf_rec_target(char *id2, void *ref, struct zfcp_dbf *dbf,
|
|
atomic_t *status, atomic_t *erp_count, u64 wwpn,
|
|
u32 d_id, u64 fcp_lun)
|
|
{
|
|
struct zfcp_dbf_rec_record *r = &dbf->rec_buf;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dbf->rec_lock, flags);
|
|
memset(r, 0, sizeof(*r));
|
|
r->id = ZFCP_REC_DBF_ID_TARGET;
|
|
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
|
|
r->u.target.ref = (unsigned long)ref;
|
|
r->u.target.status = atomic_read(status);
|
|
r->u.target.wwpn = wwpn;
|
|
r->u.target.d_id = d_id;
|
|
r->u.target.fcp_lun = fcp_lun;
|
|
r->u.target.erp_count = atomic_read(erp_count);
|
|
debug_event(dbf->rec, 3, r, sizeof(*r));
|
|
spin_unlock_irqrestore(&dbf->rec_lock, flags);
|
|
}
|
|
|
|
/**
|
|
* zfcp_dbf_rec_adapter - trace event for adapter state change
|
|
* @id: identifier for trigger of state change
|
|
* @ref: additional reference (e.g. request)
|
|
* @dbf: reference to dbf structure
|
|
*/
|
|
void zfcp_dbf_rec_adapter(char *id, void *ref, struct zfcp_dbf *dbf)
|
|
{
|
|
struct zfcp_adapter *adapter = dbf->adapter;
|
|
|
|
zfcp_dbf_rec_target(id, ref, dbf, &adapter->status,
|
|
&adapter->erp_counter, 0, 0,
|
|
ZFCP_DBF_INVALID_LUN);
|
|
}
|
|
|
|
/**
|
|
* zfcp_dbf_rec_port - trace event for port state change
|
|
* @id: identifier for trigger of state change
|
|
* @ref: additional reference (e.g. request)
|
|
* @port: port
|
|
*/
|
|
void zfcp_dbf_rec_port(char *id, void *ref, struct zfcp_port *port)
|
|
{
|
|
struct zfcp_dbf *dbf = port->adapter->dbf;
|
|
|
|
zfcp_dbf_rec_target(id, ref, dbf, &port->status,
|
|
&port->erp_counter, port->wwpn, port->d_id,
|
|
ZFCP_DBF_INVALID_LUN);
|
|
}
|
|
|
|
/**
|
|
* zfcp_dbf_rec_unit - trace event for unit state change
|
|
* @id: identifier for trigger of state change
|
|
* @ref: additional reference (e.g. request)
|
|
* @unit: unit
|
|
*/
|
|
void zfcp_dbf_rec_unit(char *id, void *ref, struct zfcp_unit *unit)
|
|
{
|
|
struct zfcp_port *port = unit->port;
|
|
struct zfcp_dbf *dbf = port->adapter->dbf;
|
|
|
|
zfcp_dbf_rec_target(id, ref, dbf, &unit->status,
|
|
&unit->erp_counter, port->wwpn, port->d_id,
|
|
unit->fcp_lun);
|
|
}
|
|
|
|
/**
|
|
* zfcp_dbf_rec_trigger - trace event for triggered error recovery
|
|
* @id2: identifier for error recovery trigger
|
|
* @ref: additional reference (e.g. request)
|
|
* @want: originally requested error recovery action
|
|
* @need: error recovery action actually initiated
|
|
* @action: address of error recovery action struct
|
|
* @adapter: adapter
|
|
* @port: port
|
|
* @unit: unit
|
|
*/
|
|
void zfcp_dbf_rec_trigger(char *id2, void *ref, u8 want, u8 need, void *action,
|
|
struct zfcp_adapter *adapter, struct zfcp_port *port,
|
|
struct zfcp_unit *unit)
|
|
{
|
|
struct zfcp_dbf *dbf = adapter->dbf;
|
|
struct zfcp_dbf_rec_record *r = &dbf->rec_buf;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dbf->rec_lock, flags);
|
|
memset(r, 0, sizeof(*r));
|
|
r->id = ZFCP_REC_DBF_ID_TRIGGER;
|
|
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
|
|
r->u.trigger.ref = (unsigned long)ref;
|
|
r->u.trigger.want = want;
|
|
r->u.trigger.need = need;
|
|
r->u.trigger.action = (unsigned long)action;
|
|
r->u.trigger.as = atomic_read(&adapter->status);
|
|
if (port) {
|
|
r->u.trigger.ps = atomic_read(&port->status);
|
|
r->u.trigger.wwpn = port->wwpn;
|
|
}
|
|
if (unit)
|
|
r->u.trigger.us = atomic_read(&unit->status);
|
|
r->u.trigger.fcp_lun = unit ? unit->fcp_lun : ZFCP_DBF_INVALID_LUN;
|
|
debug_event(dbf->rec, action ? 1 : 4, r, sizeof(*r));
|
|
spin_unlock_irqrestore(&dbf->rec_lock, flags);
|
|
}
|
|
|
|
/**
|
|
* zfcp_dbf_rec_action - trace event showing progress of recovery action
|
|
* @id2: identifier
|
|
* @erp_action: error recovery action struct pointer
|
|
*/
|
|
void zfcp_dbf_rec_action(char *id2, struct zfcp_erp_action *erp_action)
|
|
{
|
|
struct zfcp_dbf *dbf = erp_action->adapter->dbf;
|
|
struct zfcp_dbf_rec_record *r = &dbf->rec_buf;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dbf->rec_lock, flags);
|
|
memset(r, 0, sizeof(*r));
|
|
r->id = ZFCP_REC_DBF_ID_ACTION;
|
|
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
|
|
r->u.action.action = (unsigned long)erp_action;
|
|
r->u.action.status = erp_action->status;
|
|
r->u.action.step = erp_action->step;
|
|
r->u.action.fsf_req = erp_action->fsf_req_id;
|
|
debug_event(dbf->rec, 5, r, sizeof(*r));
|
|
spin_unlock_irqrestore(&dbf->rec_lock, flags);
|
|
}
|
|
|
|
/**
|
|
* zfcp_dbf_san_ct_request - trace event for issued CT request
|
|
* @fsf_req: request containing issued CT data
|
|
* @d_id: destination id where ct request is sent to
|
|
*/
|
|
void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *fsf_req, u32 d_id)
|
|
{
|
|
struct zfcp_fsf_ct_els *ct = (struct zfcp_fsf_ct_els *)fsf_req->data;
|
|
struct zfcp_adapter *adapter = fsf_req->adapter;
|
|
struct zfcp_dbf *dbf = adapter->dbf;
|
|
struct fc_ct_hdr *hdr = sg_virt(ct->req);
|
|
struct zfcp_dbf_san_record *r = &dbf->san_buf;
|
|
struct zfcp_dbf_san_record_ct_request *oct = &r->u.ct_req;
|
|
int level = 3;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dbf->san_lock, flags);
|
|
memset(r, 0, sizeof(*r));
|
|
strncpy(r->tag, "octc", ZFCP_DBF_TAG_SIZE);
|
|
r->fsf_reqid = fsf_req->req_id;
|
|
r->fsf_seqno = fsf_req->seq_no;
|
|
oct->d_id = d_id;
|
|
oct->cmd_req_code = hdr->ct_cmd;
|
|
oct->revision = hdr->ct_rev;
|
|
oct->gs_type = hdr->ct_fs_type;
|
|
oct->gs_subtype = hdr->ct_fs_subtype;
|
|
oct->options = hdr->ct_options;
|
|
oct->max_res_size = hdr->ct_mr_size;
|
|
oct->len = min((int)ct->req->length - (int)sizeof(struct fc_ct_hdr),
|
|
ZFCP_DBF_SAN_MAX_PAYLOAD);
|
|
debug_event(dbf->san, level, r, sizeof(*r));
|
|
zfcp_dbf_hexdump(dbf->san, r, sizeof(*r), level,
|
|
(void *)hdr + sizeof(struct fc_ct_hdr), oct->len);
|
|
spin_unlock_irqrestore(&dbf->san_lock, flags);
|
|
}
|
|
|
|
/**
|
|
* zfcp_dbf_san_ct_response - trace event for completion of CT request
|
|
* @fsf_req: request containing CT response
|
|
*/
|
|
void zfcp_dbf_san_ct_response(struct zfcp_fsf_req *fsf_req)
|
|
{
|
|
struct zfcp_fsf_ct_els *ct = (struct zfcp_fsf_ct_els *)fsf_req->data;
|
|
struct zfcp_adapter *adapter = fsf_req->adapter;
|
|
struct fc_ct_hdr *hdr = sg_virt(ct->resp);
|
|
struct zfcp_dbf *dbf = adapter->dbf;
|
|
struct zfcp_dbf_san_record *r = &dbf->san_buf;
|
|
struct zfcp_dbf_san_record_ct_response *rct = &r->u.ct_resp;
|
|
int level = 3;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dbf->san_lock, flags);
|
|
memset(r, 0, sizeof(*r));
|
|
strncpy(r->tag, "rctc", ZFCP_DBF_TAG_SIZE);
|
|
r->fsf_reqid = fsf_req->req_id;
|
|
r->fsf_seqno = fsf_req->seq_no;
|
|
rct->cmd_rsp_code = hdr->ct_cmd;
|
|
rct->revision = hdr->ct_rev;
|
|
rct->reason_code = hdr->ct_reason;
|
|
rct->expl = hdr->ct_explan;
|
|
rct->vendor_unique = hdr->ct_vendor;
|
|
rct->max_res_size = hdr->ct_mr_size;
|
|
rct->len = min((int)ct->resp->length - (int)sizeof(struct fc_ct_hdr),
|
|
ZFCP_DBF_SAN_MAX_PAYLOAD);
|
|
debug_event(dbf->san, level, r, sizeof(*r));
|
|
zfcp_dbf_hexdump(dbf->san, r, sizeof(*r), level,
|
|
(void *)hdr + sizeof(struct fc_ct_hdr), rct->len);
|
|
spin_unlock_irqrestore(&dbf->san_lock, flags);
|
|
}
|
|
|
|
static void zfcp_dbf_san_els(const char *tag, int level,
|
|
struct zfcp_fsf_req *fsf_req, u32 d_id,
|
|
void *buffer, int buflen)
|
|
{
|
|
struct zfcp_adapter *adapter = fsf_req->adapter;
|
|
struct zfcp_dbf *dbf = adapter->dbf;
|
|
struct zfcp_dbf_san_record *rec = &dbf->san_buf;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dbf->san_lock, flags);
|
|
memset(rec, 0, sizeof(*rec));
|
|
strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
|
|
rec->fsf_reqid = fsf_req->req_id;
|
|
rec->fsf_seqno = fsf_req->seq_no;
|
|
rec->u.els.d_id = d_id;
|
|
debug_event(dbf->san, level, rec, sizeof(*rec));
|
|
zfcp_dbf_hexdump(dbf->san, rec, sizeof(*rec), level,
|
|
buffer, min(buflen, ZFCP_DBF_SAN_MAX_PAYLOAD));
|
|
spin_unlock_irqrestore(&dbf->san_lock, flags);
|
|
}
|
|
|
|
/**
|
|
* zfcp_dbf_san_els_request - trace event for issued ELS
|
|
* @fsf_req: request containing issued ELS
|
|
*/
|
|
void zfcp_dbf_san_els_request(struct zfcp_fsf_req *fsf_req)
|
|
{
|
|
struct zfcp_fsf_ct_els *els = (struct zfcp_fsf_ct_els *)fsf_req->data;
|
|
u32 d_id = ntoh24(fsf_req->qtcb->bottom.support.d_id);
|
|
|
|
zfcp_dbf_san_els("oels", 2, fsf_req, d_id,
|
|
sg_virt(els->req), els->req->length);
|
|
}
|
|
|
|
/**
|
|
* zfcp_dbf_san_els_response - trace event for completed ELS
|
|
* @fsf_req: request containing ELS response
|
|
*/
|
|
void zfcp_dbf_san_els_response(struct zfcp_fsf_req *fsf_req)
|
|
{
|
|
struct zfcp_fsf_ct_els *els = (struct zfcp_fsf_ct_els *)fsf_req->data;
|
|
u32 d_id = ntoh24(fsf_req->qtcb->bottom.support.d_id);
|
|
|
|
zfcp_dbf_san_els("rels", 2, fsf_req, d_id,
|
|
sg_virt(els->resp), els->resp->length);
|
|
}
|
|
|
|
/**
|
|
* zfcp_dbf_san_incoming_els - trace event for incomig ELS
|
|
* @fsf_req: request containing unsolicited status buffer with incoming ELS
|
|
*/
|
|
void zfcp_dbf_san_incoming_els(struct zfcp_fsf_req *fsf_req)
|
|
{
|
|
struct fsf_status_read_buffer *buf =
|
|
(struct fsf_status_read_buffer *)fsf_req->data;
|
|
int length = (int)buf->length -
|
|
(int)((void *)&buf->payload - (void *)buf);
|
|
|
|
zfcp_dbf_san_els("iels", 1, fsf_req, ntoh24(buf->d_id),
|
|
(void *)buf->payload.data, length);
|
|
}
|
|
|
|
static int zfcp_dbf_san_view_format(debug_info_t *id, struct debug_view *view,
|
|
char *out_buf, const char *in_buf)
|
|
{
|
|
struct zfcp_dbf_san_record *r = (struct zfcp_dbf_san_record *)in_buf;
|
|
char *p = out_buf;
|
|
|
|
if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
|
|
return 0;
|
|
|
|
zfcp_dbf_tag(&p, "tag", r->tag);
|
|
zfcp_dbf_out(&p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
|
|
zfcp_dbf_out(&p, "fsf_seqno", "0x%08x", r->fsf_seqno);
|
|
|
|
if (strncmp(r->tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
|
|
struct zfcp_dbf_san_record_ct_request *ct = &r->u.ct_req;
|
|
zfcp_dbf_out(&p, "d_id", "0x%06x", ct->d_id);
|
|
zfcp_dbf_out(&p, "cmd_req_code", "0x%04x", ct->cmd_req_code);
|
|
zfcp_dbf_out(&p, "revision", "0x%02x", ct->revision);
|
|
zfcp_dbf_out(&p, "gs_type", "0x%02x", ct->gs_type);
|
|
zfcp_dbf_out(&p, "gs_subtype", "0x%02x", ct->gs_subtype);
|
|
zfcp_dbf_out(&p, "options", "0x%02x", ct->options);
|
|
zfcp_dbf_out(&p, "max_res_size", "0x%04x", ct->max_res_size);
|
|
} else if (strncmp(r->tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) {
|
|
struct zfcp_dbf_san_record_ct_response *ct = &r->u.ct_resp;
|
|
zfcp_dbf_out(&p, "cmd_rsp_code", "0x%04x", ct->cmd_rsp_code);
|
|
zfcp_dbf_out(&p, "revision", "0x%02x", ct->revision);
|
|
zfcp_dbf_out(&p, "reason_code", "0x%02x", ct->reason_code);
|
|
zfcp_dbf_out(&p, "reason_code_expl", "0x%02x", ct->expl);
|
|
zfcp_dbf_out(&p, "vendor_unique", "0x%02x", ct->vendor_unique);
|
|
zfcp_dbf_out(&p, "max_res_size", "0x%04x", ct->max_res_size);
|
|
} else if (strncmp(r->tag, "oels", ZFCP_DBF_TAG_SIZE) == 0 ||
|
|
strncmp(r->tag, "rels", ZFCP_DBF_TAG_SIZE) == 0 ||
|
|
strncmp(r->tag, "iels", ZFCP_DBF_TAG_SIZE) == 0) {
|
|
struct zfcp_dbf_san_record_els *els = &r->u.els;
|
|
zfcp_dbf_out(&p, "d_id", "0x%06x", els->d_id);
|
|
}
|
|
return p - out_buf;
|
|
}
|
|
|
|
static struct debug_view zfcp_dbf_san_view = {
|
|
.name = "structured",
|
|
.header_proc = zfcp_dbf_view_header,
|
|
.format_proc = zfcp_dbf_san_view_format,
|
|
};
|
|
|
|
void _zfcp_dbf_scsi(const char *tag, const char *tag2, int level,
|
|
struct zfcp_dbf *dbf, struct scsi_cmnd *scsi_cmnd,
|
|
struct zfcp_fsf_req *fsf_req, unsigned long old_req_id)
|
|
{
|
|
struct zfcp_dbf_scsi_record *rec = &dbf->scsi_buf;
|
|
struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec;
|
|
unsigned long flags;
|
|
struct fcp_resp_with_ext *fcp_rsp;
|
|
struct fcp_resp_rsp_info *fcp_rsp_info = NULL;
|
|
char *fcp_sns_info = NULL;
|
|
int offset = 0, buflen = 0;
|
|
|
|
spin_lock_irqsave(&dbf->scsi_lock, flags);
|
|
do {
|
|
memset(rec, 0, sizeof(*rec));
|
|
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_resp_with_ext *)
|
|
&(fsf_req->qtcb->bottom.io.fcp_rsp);
|
|
fcp_rsp_info = (struct fcp_resp_rsp_info *)
|
|
&fcp_rsp[1];
|
|
fcp_sns_info = (char *) &fcp_rsp[1];
|
|
if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL)
|
|
fcp_sns_info += fcp_rsp->ext.fr_sns_len;
|
|
|
|
rec->rsp_validity = fcp_rsp->resp.fr_flags;
|
|
rec->rsp_scsi_status = fcp_rsp->resp.fr_status;
|
|
rec->rsp_resid = fcp_rsp->ext.fr_resid;
|
|
if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL)
|
|
rec->rsp_code = fcp_rsp_info->rsp_code;
|
|
if (fcp_rsp->resp.fr_flags & FCP_SNS_LEN_VAL) {
|
|
buflen = min(fcp_rsp->ext.fr_sns_len,
|
|
(u32)ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO);
|
|
rec->sns_info_len = buflen;
|
|
memcpy(rec->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 = fsf_req->req_id;
|
|
rec->fsf_seqno = fsf_req->seq_no;
|
|
rec->fsf_issued = fsf_req->issued;
|
|
}
|
|
rec->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_dbf_scsi_record) -
|
|
(int)sizeof(struct zfcp_dbf_dump));
|
|
memcpy(dump->data, fcp_sns_info + offset, dump->size);
|
|
offset += dump->size;
|
|
}
|
|
debug_event(dbf->scsi, level, rec, sizeof(*rec));
|
|
} while (offset < buflen);
|
|
spin_unlock_irqrestore(&dbf->scsi_lock, flags);
|
|
}
|
|
|
|
static int zfcp_dbf_scsi_view_format(debug_info_t *id, struct debug_view *view,
|
|
char *out_buf, const char *in_buf)
|
|
{
|
|
struct zfcp_dbf_scsi_record *r = (struct zfcp_dbf_scsi_record *)in_buf;
|
|
struct timespec t;
|
|
char *p = out_buf;
|
|
|
|
if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
|
|
return 0;
|
|
|
|
zfcp_dbf_tag(&p, "tag", r->tag);
|
|
zfcp_dbf_tag(&p, "tag2", r->tag2);
|
|
zfcp_dbf_out(&p, "scsi_id", "0x%08x", r->scsi_id);
|
|
zfcp_dbf_out(&p, "scsi_lun", "0x%08x", r->scsi_lun);
|
|
zfcp_dbf_out(&p, "scsi_result", "0x%08x", r->scsi_result);
|
|
zfcp_dbf_out(&p, "scsi_cmnd", "0x%0Lx", r->scsi_cmnd);
|
|
zfcp_dbf_out(&p, "scsi_serial", "0x%016Lx", r->scsi_serial);
|
|
zfcp_dbf_outd(&p, "scsi_opcode", r->scsi_opcode, ZFCP_DBF_SCSI_OPCODE,
|
|
0, ZFCP_DBF_SCSI_OPCODE);
|
|
zfcp_dbf_out(&p, "scsi_retries", "0x%02x", r->scsi_retries);
|
|
zfcp_dbf_out(&p, "scsi_allowed", "0x%02x", r->scsi_allowed);
|
|
if (strncmp(r->tag, "abrt", ZFCP_DBF_TAG_SIZE) == 0)
|
|
zfcp_dbf_out(&p, "old_fsf_reqid", "0x%0Lx", r->old_fsf_reqid);
|
|
zfcp_dbf_out(&p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
|
|
zfcp_dbf_out(&p, "fsf_seqno", "0x%08x", r->fsf_seqno);
|
|
stck_to_timespec(r->fsf_issued, &t);
|
|
zfcp_dbf_out(&p, "fsf_issued", "%011lu:%06lu", t.tv_sec, t.tv_nsec);
|
|
|
|
if (strncmp(r->tag, "rslt", ZFCP_DBF_TAG_SIZE) == 0) {
|
|
zfcp_dbf_out(&p, "fcp_rsp_validity", "0x%02x", r->rsp_validity);
|
|
zfcp_dbf_out(&p, "fcp_rsp_scsi_status", "0x%02x",
|
|
r->rsp_scsi_status);
|
|
zfcp_dbf_out(&p, "fcp_rsp_resid", "0x%08x", r->rsp_resid);
|
|
zfcp_dbf_out(&p, "fcp_rsp_code", "0x%08x", r->rsp_code);
|
|
zfcp_dbf_out(&p, "fcp_sns_info_len", "0x%08x", r->sns_info_len);
|
|
zfcp_dbf_outd(&p, "fcp_sns_info", r->sns_info,
|
|
min((int)r->sns_info_len,
|
|
ZFCP_DBF_SCSI_FCP_SNS_INFO), 0,
|
|
r->sns_info_len);
|
|
}
|
|
p += sprintf(p, "\n");
|
|
return p - out_buf;
|
|
}
|
|
|
|
static struct debug_view zfcp_dbf_scsi_view = {
|
|
.name = "structured",
|
|
.header_proc = zfcp_dbf_view_header,
|
|
.format_proc = zfcp_dbf_scsi_view_format,
|
|
};
|
|
|
|
static debug_info_t *zfcp_dbf_reg(const char *name, int level,
|
|
struct debug_view *view, int size)
|
|
{
|
|
struct debug_info *d;
|
|
|
|
d = debug_register(name, dbfsize, level, size);
|
|
if (!d)
|
|
return NULL;
|
|
|
|
debug_register_view(d, &debug_hex_ascii_view);
|
|
debug_register_view(d, view);
|
|
debug_set_level(d, level);
|
|
|
|
return d;
|
|
}
|
|
|
|
/**
|
|
* 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_dbf_adapter_register(struct zfcp_adapter *adapter)
|
|
{
|
|
char dbf_name[DEBUG_MAX_NAME_LEN];
|
|
struct zfcp_dbf *dbf;
|
|
|
|
dbf = kzalloc(sizeof(struct zfcp_dbf), GFP_KERNEL);
|
|
if (!dbf)
|
|
return -ENOMEM;
|
|
|
|
dbf->adapter = adapter;
|
|
|
|
spin_lock_init(&dbf->hba_lock);
|
|
spin_lock_init(&dbf->san_lock);
|
|
spin_lock_init(&dbf->scsi_lock);
|
|
spin_lock_init(&dbf->rec_lock);
|
|
|
|
/* debug feature area which records recovery activity */
|
|
sprintf(dbf_name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev));
|
|
dbf->rec = zfcp_dbf_reg(dbf_name, 3, &zfcp_dbf_rec_view,
|
|
sizeof(struct zfcp_dbf_rec_record));
|
|
if (!dbf->rec)
|
|
goto err_out;
|
|
|
|
/* debug feature area which records HBA (FSF and QDIO) conditions */
|
|
sprintf(dbf_name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev));
|
|
dbf->hba = zfcp_dbf_reg(dbf_name, 3, &zfcp_dbf_hba_view,
|
|
sizeof(struct zfcp_dbf_hba_record));
|
|
if (!dbf->hba)
|
|
goto err_out;
|
|
|
|
/* debug feature area which records SAN command failures and recovery */
|
|
sprintf(dbf_name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
|
|
dbf->san = zfcp_dbf_reg(dbf_name, 6, &zfcp_dbf_san_view,
|
|
sizeof(struct zfcp_dbf_san_record));
|
|
if (!dbf->san)
|
|
goto err_out;
|
|
|
|
/* debug feature area which records SCSI command failures and recovery */
|
|
sprintf(dbf_name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev));
|
|
dbf->scsi = zfcp_dbf_reg(dbf_name, 3, &zfcp_dbf_scsi_view,
|
|
sizeof(struct zfcp_dbf_scsi_record));
|
|
if (!dbf->scsi)
|
|
goto err_out;
|
|
|
|
adapter->dbf = dbf;
|
|
return 0;
|
|
|
|
err_out:
|
|
zfcp_dbf_adapter_unregister(dbf);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/**
|
|
* zfcp_adapter_debug_unregister - unregisters debug feature for an adapter
|
|
* @dbf: pointer to dbf for which debug features should be unregistered
|
|
*/
|
|
void zfcp_dbf_adapter_unregister(struct zfcp_dbf *dbf)
|
|
{
|
|
if (!dbf)
|
|
return;
|
|
debug_unregister(dbf->scsi);
|
|
debug_unregister(dbf->san);
|
|
debug_unregister(dbf->hba);
|
|
debug_unregister(dbf->rec);
|
|
dbf->adapter->dbf = NULL;
|
|
kfree(dbf);
|
|
}
|
|
|