#define ZFCP_LOG_AREA ZFCP_LOG_AREA_OTHER
+static void zfcp_dbf_hexdump(debug_info_t *dbf, void *to, int to_len,
+ int level, char *from, int from_len)
+{
+ int offset;
+ struct zfcp_dbf_dump *dump = to;
+ int room = to_len - sizeof(*dump);
+
+ for (offset = 0; offset < from_len; offset += dump->size) {
+ memset(to, 0, to_len);
+ strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
+ dump->total_size = from_len;
+ dump->offset = offset;
+ dump->size = min(from_len - offset, room);
+ memcpy(dump->data, from + offset, dump->size);
+ debug_event(dbf, level, dump, dump->size);
+ }
+}
+
static int
zfcp_dbf_stck(char *out_buf, const char *label, unsigned long long stck)
{
return len;
}
+static void zfcp_dbf_outs(char **buf, const char *s1, const char *s2)
+{
+ *buf += sprintf(*buf, "%-24s%s\n", s1, s2);
+}
+
+static void zfcp_dbf_out(char **buf, const char *s, const char *format, ...)
+{
+ va_list arg;
+
+ *buf += sprintf(*buf, "%-24s", s);
+ va_start(arg, format);
+ *buf += vsprintf(*buf, format, arg);
+ va_end(arg);
+ *buf += sprintf(*buf, "\n");
+}
+
static int
zfcp_dbf_view_dump(char *out_buf, const char *label,
char *buffer, int buflen, int offset, int total_size)
(fsf_req->fsf_command == FSF_QTCB_OPEN_LUN)) {
strncpy(rec->tag2, "open", ZFCP_DBF_TAG_SIZE);
level = 4;
- } else if ((prot_status_qual->doubleword[0] != 0) ||
- (prot_status_qual->doubleword[1] != 0) ||
- (fsf_status_qual->doubleword[0] != 0) ||
- (fsf_status_qual->doubleword[1] != 0)) {
- strncpy(rec->tag2, "qual", ZFCP_DBF_TAG_SIZE);
- level = 3;
+ } else if (qtcb->header.log_length) {
+ strncpy(rec->tag2, "qtcb", ZFCP_DBF_TAG_SIZE);
+ level = 5;
} else {
strncpy(rec->tag2, "norm", ZFCP_DBF_TAG_SIZE);
level = 6;
debug_event(adapter->hba_dbf, level,
rec, sizeof(struct zfcp_hba_dbf_record));
+
+ /* have fcp channel microcode fixed to use as little as possible */
+ if (fsf_req->fsf_command != FSF_QTCB_FCP_CMND) {
+ /* adjust length skipping trailing zeros */
+ char *buf = (char *)qtcb + qtcb->header.log_start;
+ int len = qtcb->header.log_length;
+ for (; len && !buf[len - 1]; len--);
+ zfcp_dbf_hexdump(adapter->hba_dbf, rec, sizeof(*rec), level,
+ buf, len);
+ }
+
spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
}
NULL
};
+static const char *zfcp_rec_dbf_tags[] = {
+ [ZFCP_REC_DBF_ID_THREAD] = "thread",
+ [ZFCP_REC_DBF_ID_TARGET] = "target",
+ [ZFCP_REC_DBF_ID_TRIGGER] = "trigger",
+};
+
+static const char *zfcp_rec_dbf_ids[] = {
+ [1] = "new",
+ [2] = "ready",
+ [3] = "kill",
+ [4] = "down sleep",
+ [5] = "down wakeup",
+ [6] = "down sleep ecd",
+ [7] = "down wakeup ecd",
+ [8] = "down sleep epd",
+ [9] = "down wakeup epd",
+ [10] = "online",
+ [11] = "operational",
+ [12] = "scsi slave destroy",
+ [13] = "propagate failed adapter",
+ [14] = "propagate failed port",
+ [15] = "block adapter",
+ [16] = "unblock adapter",
+ [17] = "block port",
+ [18] = "unblock port",
+ [19] = "block unit",
+ [20] = "unblock unit",
+ [21] = "unit recovery failed",
+ [22] = "port recovery failed",
+ [23] = "adapter recovery failed",
+ [24] = "qdio queues down",
+ [25] = "p2p failed",
+ [26] = "nameserver lookup failed",
+ [27] = "nameserver port failed",
+ [28] = "link up",
+ [29] = "link down",
+ [30] = "link up status read",
+ [31] = "open port failed",
+ [32] = "open port failed",
+ [33] = "close port",
+ [34] = "open unit failed",
+ [35] = "exclusive open unit failed",
+ [36] = "shared open unit failed",
+ [37] = "link down",
+ [38] = "link down status read no link",
+ [39] = "link down status read fdisc login",
+ [40] = "link down status read firmware update",
+ [41] = "link down status read unknown reason",
+ [42] = "link down ecd incomplete",
+ [43] = "link down epd incomplete",
+ [44] = "sysfs adapter recovery",
+ [45] = "sysfs port recovery",
+ [46] = "sysfs unit recovery",
+ [47] = "port boxed abort",
+ [48] = "unit boxed abort",
+ [49] = "port boxed ct",
+ [50] = "port boxed close physical",
+ [51] = "port boxed open unit",
+ [52] = "port boxed close unit",
+ [53] = "port boxed fcp",
+ [54] = "unit boxed fcp",
+ [55] = "port access denied ct",
+ [56] = "port access denied els",
+ [57] = "port access denied open port",
+ [58] = "port access denied close physical",
+ [59] = "unit access denied open unit",
+ [60] = "shared unit access denied open unit",
+ [61] = "unit access denied fcp",
+ [62] = "request timeout",
+ [63] = "adisc link test reject or timeout",
+ [64] = "adisc link test d_id changed",
+ [65] = "adisc link test failed",
+ [66] = "recovery out of memory",
+ [67] = "adapter recovery repeated after state change",
+ [68] = "port recovery repeated after state change",
+ [69] = "unit recovery repeated after state change",
+ [70] = "port recovery follow-up after successful adapter recovery",
+ [71] = "adapter recovery escalation after failed adapter recovery",
+ [72] = "port recovery follow-up after successful physical port "
+ "recovery",
+ [73] = "adapter recovery escalation after failed physical port "
+ "recovery",
+ [74] = "unit recovery follow-up after successful port recovery",
+ [75] = "physical port recovery escalation after failed port "
+ "recovery",
+ [76] = "port recovery escalation after failed unit recovery",
+ [77] = "recovery opening nameserver port",
+ [78] = "duplicate request id",
+ [79] = "link down",
+ [80] = "exclusive read-only unit access unsupported",
+ [81] = "shared read-write unit access unsupported",
+ [82] = "incoming rscn",
+ [83] = "incoming plogi",
+ [84] = "incoming logo",
+ [85] = "online",
+ [86] = "offline",
+ [87] = "ccw device gone",
+ [88] = "ccw device no path",
+ [89] = "ccw device operational",
+ [90] = "ccw device shutdown",
+ [91] = "sysfs port addition",
+ [92] = "sysfs port removal",
+ [93] = "sysfs adapter recovery",
+ [94] = "sysfs unit addition",
+ [95] = "sysfs unit removal",
+ [96] = "sysfs port recovery",
+ [97] = "sysfs unit recovery",
+ [98] = "sequence number mismatch",
+ [99] = "link up",
+ [100] = "error state",
+ [101] = "status read physical port closed",
+ [102] = "link up status read",
+ [103] = "too many failed status read buffers",
+ [104] = "port handle not valid abort",
+ [105] = "lun handle not valid abort",
+ [106] = "port handle not valid ct",
+ [107] = "port handle not valid close port",
+ [108] = "port handle not valid close physical port",
+ [109] = "port handle not valid open unit",
+ [110] = "port handle not valid close unit",
+ [111] = "lun handle not valid close unit",
+ [112] = "port handle not valid fcp",
+ [113] = "lun handle not valid fcp",
+ [114] = "handle mismatch fcp",
+ [115] = "lun not valid fcp",
+ [116] = "qdio send failed",
+ [117] = "version mismatch",
+ [118] = "incompatible qtcb type",
+ [119] = "unknown protocol status",
+ [120] = "unknown fsf command",
+ [121] = "no recommendation for status qualifier",
+ [122] = "status read physical port closed in error",
+ [123] = "fc service class not supported ct",
+ [124] = "fc service class not supported els",
+ [125] = "need newer zfcp",
+ [126] = "need newer microcode",
+ [127] = "arbitrated loop not supported",
+ [128] = "unknown topology",
+ [129] = "qtcb size mismatch",
+ [130] = "unknown fsf status ecd",
+ [131] = "fcp request too big",
+ [132] = "fc service class not supported fcp",
+ [133] = "data direction not valid fcp",
+ [134] = "command length not valid fcp",
+ [135] = "status read act update",
+ [136] = "status read cfdc update",
+ [137] = "hbaapi port open",
+ [138] = "hbaapi unit open",
+ [139] = "hbaapi unit shutdown",
+ [140] = "qdio error",
+ [141] = "scsi host reset",
+};
+
+static int zfcp_rec_dbf_view_format(debug_info_t *id, struct debug_view *view,
+ char *buf, const char *_rec)
+{
+ struct zfcp_rec_dbf_record *r = (struct zfcp_rec_dbf_record *)_rec;
+ char *p = buf;
+
+ zfcp_dbf_outs(&p, "tag", zfcp_rec_dbf_tags[r->id]);
+ zfcp_dbf_outs(&p, "hint", zfcp_rec_dbf_ids[r->id2]);
+ zfcp_dbf_out(&p, "id", "%d", r->id2);
+ switch (r->id) {
+ case ZFCP_REC_DBF_ID_THREAD:
+ zfcp_dbf_out(&p, "sema", "%d", r->u.thread.sema);
+ 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;
+ }
+ sprintf(p, "\n");
+ return (p - buf) + 1;
+}
+
+static struct debug_view zfcp_rec_dbf_view = {
+ "structured",
+ NULL,
+ &zfcp_dbf_view_header,
+ &zfcp_rec_dbf_view_format,
+ NULL,
+ NULL
+};
+
+/**
+ * zfcp_rec_dbf_event_thread - trace event related to recovery thread operation
+ * @id2: identifier for event
+ * @adapter: adapter
+ * @lock: non-zero value indicates that erp_lock has not yet been acquired
+ */
+void zfcp_rec_dbf_event_thread(u8 id2, struct zfcp_adapter *adapter, int lock)
+{
+ struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
+ unsigned long flags = 0;
+ struct list_head *entry;
+ unsigned ready = 0, running = 0, total;
+
+ if (lock)
+ read_lock_irqsave(&adapter->erp_lock, flags);
+ list_for_each(entry, &adapter->erp_ready_head)
+ ready++;
+ list_for_each(entry, &adapter->erp_running_head)
+ running++;
+ total = adapter->erp_total_count;
+ if (lock)
+ read_unlock_irqrestore(&adapter->erp_lock, flags);
+
+ spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
+ memset(r, 0, sizeof(*r));
+ r->id = ZFCP_REC_DBF_ID_THREAD;
+ r->id2 = id2;
+ r->u.thread.sema = atomic_read(&adapter->erp_ready_sem.count);
+ r->u.thread.total = total;
+ r->u.thread.ready = ready;
+ r->u.thread.running = running;
+ debug_event(adapter->rec_dbf, 5, r, sizeof(*r));
+ spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
+}
+
+static void zfcp_rec_dbf_event_target(u8 id2, u64 ref,
+ struct zfcp_adapter *adapter,
+ atomic_t *status, atomic_t *erp_count,
+ u64 wwpn, u32 d_id, u64 fcp_lun)
+{
+ struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
+ memset(r, 0, sizeof(*r));
+ r->id = ZFCP_REC_DBF_ID_TARGET;
+ r->id2 = id2;
+ r->u.target.ref = 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(adapter->rec_dbf, 3, r, sizeof(*r));
+ spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
+}
+
+/**
+ * zfcp_rec_dbf_event_adapter - trace event for adapter state change
+ * @id: identifier for trigger of state change
+ * @ref: additional reference (e.g. request)
+ * @adapter: adapter
+ */
+void zfcp_rec_dbf_event_adapter(u8 id, u64 ref, struct zfcp_adapter *adapter)
+{
+ zfcp_rec_dbf_event_target(id, ref, adapter, &adapter->status,
+ &adapter->erp_counter, 0, 0, 0);
+}
+
+/**
+ * zfcp_rec_dbf_event_port - trace event for port state change
+ * @id: identifier for trigger of state change
+ * @ref: additional reference (e.g. request)
+ * @port: port
+ */
+void zfcp_rec_dbf_event_port(u8 id, u64 ref, struct zfcp_port *port)
+{
+ struct zfcp_adapter *adapter = port->adapter;
+
+ zfcp_rec_dbf_event_target(id, ref, adapter, &port->status,
+ &port->erp_counter, port->wwpn, port->d_id,
+ 0);
+}
+
+/**
+ * zfcp_rec_dbf_event_unit - trace event for unit state change
+ * @id: identifier for trigger of state change
+ * @ref: additional reference (e.g. request)
+ * @unit: unit
+ */
+void zfcp_rec_dbf_event_unit(u8 id, u64 ref, struct zfcp_unit *unit)
+{
+ struct zfcp_port *port = unit->port;
+ struct zfcp_adapter *adapter = port->adapter;
+
+ zfcp_rec_dbf_event_target(id, ref, adapter, &unit->status,
+ &unit->erp_counter, port->wwpn, port->d_id,
+ unit->fcp_lun);
+}
+
+/**
+ * zfcp_rec_dbf_event_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_rec_dbf_event_trigger(u8 id2, u64 ref, u8 want, u8 need, u64 action,
+ struct zfcp_adapter *adapter,
+ struct zfcp_port *port, struct zfcp_unit *unit)
+{
+ struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
+ memset(r, 0, sizeof(*r));
+ r->id = ZFCP_REC_DBF_ID_TRIGGER;
+ r->id2 = id2;
+ r->u.trigger.ref = ref;
+ r->u.trigger.want = want;
+ r->u.trigger.need = need;
+ r->u.trigger.action = 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->fcp_lun;
+ }
+ debug_event(adapter->rec_dbf, action ? 1 : 4, r, sizeof(*r));
+ spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
+}
+
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_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);
+ 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;
+ rec->type.els.ls_code = ls_code;
+ debug_event(adapter->san_dbf, level, rec, sizeof(*rec));
+ zfcp_dbf_hexdump(adapter->san_dbf, rec, sizeof(*rec), level,
+ buffer, min(buflen, ZFCP_DBF_ELS_MAX_PAYLOAD));
spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
}
debug_register_view(adapter->erp_dbf, &debug_hex_ascii_view);
debug_set_level(adapter->erp_dbf, 3);
+ /* debug feature area which records recovery activity */
+ sprintf(dbf_name, "zfcp_%s_rec", zfcp_get_busid_by_adapter(adapter));
+ adapter->rec_dbf = debug_register(dbf_name, dbfsize, 1,
+ sizeof(struct zfcp_rec_dbf_record));
+ if (!adapter->rec_dbf)
+ goto failed;
+ debug_register_view(adapter->rec_dbf, &debug_hex_ascii_view);
+ debug_register_view(adapter->rec_dbf, &zfcp_rec_dbf_view);
+ debug_set_level(adapter->rec_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,
debug_unregister(adapter->scsi_dbf);
debug_unregister(adapter->san_dbf);
debug_unregister(adapter->hba_dbf);
+ debug_unregister(adapter->rec_dbf);
debug_unregister(adapter->erp_dbf);
adapter->scsi_dbf = NULL;
adapter->san_dbf = NULL;
adapter->hba_dbf = NULL;
+ adapter->rec_dbf = NULL;
adapter->erp_dbf = NULL;
}
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff