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path: root/drivers/s390/scsi/zfcp_aux.c
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Diffstat (limited to 'drivers/s390/scsi/zfcp_aux.c')
-rw-r--r--drivers/s390/scsi/zfcp_aux.c186
1 files changed, 3 insertions, 183 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index bfe3ba73bc0..cab098556b4 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -122,95 +122,6 @@ _zfcp_hex_dump(char *addr, int count)
122 122
123#define ZFCP_LOG_AREA ZFCP_LOG_AREA_OTHER 123#define ZFCP_LOG_AREA ZFCP_LOG_AREA_OTHER
124 124
125static inline int
126zfcp_fsf_req_is_scsi_cmnd(struct zfcp_fsf_req *fsf_req)
127{
128 return ((fsf_req->fsf_command == FSF_QTCB_FCP_CMND) &&
129 !(fsf_req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT));
130}
131
132void
133zfcp_cmd_dbf_event_fsf(const char *text, struct zfcp_fsf_req *fsf_req,
134 void *add_data, int add_length)
135{
136 struct zfcp_adapter *adapter = fsf_req->adapter;
137 struct scsi_cmnd *scsi_cmnd;
138 int level = 3;
139 int i;
140 unsigned long flags;
141
142 spin_lock_irqsave(&adapter->dbf_lock, flags);
143 if (zfcp_fsf_req_is_scsi_cmnd(fsf_req)) {
144 scsi_cmnd = fsf_req->data.send_fcp_command_task.scsi_cmnd;
145 debug_text_event(adapter->cmd_dbf, level, "fsferror");
146 debug_text_event(adapter->cmd_dbf, level, text);
147 debug_event(adapter->cmd_dbf, level, &fsf_req,
148 sizeof (unsigned long));
149 debug_event(adapter->cmd_dbf, level, &fsf_req->seq_no,
150 sizeof (u32));
151 debug_event(adapter->cmd_dbf, level, &scsi_cmnd,
152 sizeof (unsigned long));
153 debug_event(adapter->cmd_dbf, level, &scsi_cmnd->cmnd,
154 min(ZFCP_CMD_DBF_LENGTH, (int)scsi_cmnd->cmd_len));
155 for (i = 0; i < add_length; i += ZFCP_CMD_DBF_LENGTH)
156 debug_event(adapter->cmd_dbf,
157 level,
158 (char *) add_data + i,
159 min(ZFCP_CMD_DBF_LENGTH, add_length - i));
160 }
161 spin_unlock_irqrestore(&adapter->dbf_lock, flags);
162}
163
164/* XXX additionally log unit if available */
165/* ---> introduce new parameter for unit, see 2.4 code */
166void
167zfcp_cmd_dbf_event_scsi(const char *text, struct scsi_cmnd *scsi_cmnd)
168{
169 struct zfcp_adapter *adapter;
170 union zfcp_req_data *req_data;
171 struct zfcp_fsf_req *fsf_req;
172 int level = ((host_byte(scsi_cmnd->result) != 0) ? 1 : 5);
173 unsigned long flags;
174
175 adapter = (struct zfcp_adapter *) scsi_cmnd->device->host->hostdata[0];
176 req_data = (union zfcp_req_data *) scsi_cmnd->host_scribble;
177 fsf_req = (req_data ? req_data->send_fcp_command_task.fsf_req : NULL);
178 spin_lock_irqsave(&adapter->dbf_lock, flags);
179 debug_text_event(adapter->cmd_dbf, level, "hostbyte");
180 debug_text_event(adapter->cmd_dbf, level, text);
181 debug_event(adapter->cmd_dbf, level, &scsi_cmnd->result, sizeof (u32));
182 debug_event(adapter->cmd_dbf, level, &scsi_cmnd,
183 sizeof (unsigned long));
184 debug_event(adapter->cmd_dbf, level, &scsi_cmnd->cmnd,
185 min(ZFCP_CMD_DBF_LENGTH, (int)scsi_cmnd->cmd_len));
186 if (likely(fsf_req)) {
187 debug_event(adapter->cmd_dbf, level, &fsf_req,
188 sizeof (unsigned long));
189 debug_event(adapter->cmd_dbf, level, &fsf_req->seq_no,
190 sizeof (u32));
191 } else {
192 debug_text_event(adapter->cmd_dbf, level, "");
193 debug_text_event(adapter->cmd_dbf, level, "");
194 }
195 spin_unlock_irqrestore(&adapter->dbf_lock, flags);
196}
197
198void
199zfcp_in_els_dbf_event(struct zfcp_adapter *adapter, const char *text,
200 struct fsf_status_read_buffer *status_buffer, int length)
201{
202 int level = 1;
203 int i;
204
205 debug_text_event(adapter->in_els_dbf, level, text);
206 debug_event(adapter->in_els_dbf, level, &status_buffer->d_id, 8);
207 for (i = 0; i < length; i += ZFCP_IN_ELS_DBF_LENGTH)
208 debug_event(adapter->in_els_dbf,
209 level,
210 (char *) status_buffer->payload + i,
211 min(ZFCP_IN_ELS_DBF_LENGTH, length - i));
212}
213
214/** 125/**
215 * zfcp_device_setup - setup function 126 * zfcp_device_setup - setup function
216 * @str: pointer to parameter string 127 * @str: pointer to parameter string
@@ -922,7 +833,7 @@ zfcp_unit_dequeue(struct zfcp_unit *unit)
922} 833}
923 834
924static void * 835static void *
925zfcp_mempool_alloc(unsigned int __nocast gfp_mask, void *size) 836zfcp_mempool_alloc(gfp_t gfp_mask, void *size)
926{ 837{
927 return kmalloc((size_t) size, gfp_mask); 838 return kmalloc((size_t) size, gfp_mask);
928} 839}
@@ -1017,81 +928,6 @@ zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter)
1017 mempool_destroy(adapter->pool.data_gid_pn); 928 mempool_destroy(adapter->pool.data_gid_pn);
1018} 929}
1019 930
1020/**
1021 * zfcp_adapter_debug_register - registers debug feature for an adapter
1022 * @adapter: pointer to adapter for which debug features should be registered
1023 * return: -ENOMEM on error, 0 otherwise
1024 */
1025int
1026zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
1027{
1028 char dbf_name[20];
1029
1030 /* debug feature area which records SCSI command failures (hostbyte) */
1031 spin_lock_init(&adapter->dbf_lock);
1032
1033 sprintf(dbf_name, ZFCP_CMD_DBF_NAME "%s",
1034 zfcp_get_busid_by_adapter(adapter));
1035 adapter->cmd_dbf = debug_register(dbf_name, ZFCP_CMD_DBF_INDEX,
1036 ZFCP_CMD_DBF_AREAS,
1037 ZFCP_CMD_DBF_LENGTH);
1038 debug_register_view(adapter->cmd_dbf, &debug_hex_ascii_view);
1039 debug_set_level(adapter->cmd_dbf, ZFCP_CMD_DBF_LEVEL);
1040
1041 /* debug feature area which records SCSI command aborts */
1042 sprintf(dbf_name, ZFCP_ABORT_DBF_NAME "%s",
1043 zfcp_get_busid_by_adapter(adapter));
1044 adapter->abort_dbf = debug_register(dbf_name, ZFCP_ABORT_DBF_INDEX,
1045 ZFCP_ABORT_DBF_AREAS,
1046 ZFCP_ABORT_DBF_LENGTH);
1047 debug_register_view(adapter->abort_dbf, &debug_hex_ascii_view);
1048 debug_set_level(adapter->abort_dbf, ZFCP_ABORT_DBF_LEVEL);
1049
1050 /* debug feature area which records incoming ELS commands */
1051 sprintf(dbf_name, ZFCP_IN_ELS_DBF_NAME "%s",
1052 zfcp_get_busid_by_adapter(adapter));
1053 adapter->in_els_dbf = debug_register(dbf_name, ZFCP_IN_ELS_DBF_INDEX,
1054 ZFCP_IN_ELS_DBF_AREAS,
1055 ZFCP_IN_ELS_DBF_LENGTH);
1056 debug_register_view(adapter->in_els_dbf, &debug_hex_ascii_view);
1057 debug_set_level(adapter->in_els_dbf, ZFCP_IN_ELS_DBF_LEVEL);
1058
1059 /* debug feature area which records erp events */
1060 sprintf(dbf_name, ZFCP_ERP_DBF_NAME "%s",
1061 zfcp_get_busid_by_adapter(adapter));
1062 adapter->erp_dbf = debug_register(dbf_name, ZFCP_ERP_DBF_INDEX,
1063 ZFCP_ERP_DBF_AREAS,
1064 ZFCP_ERP_DBF_LENGTH);
1065 debug_register_view(adapter->erp_dbf, &debug_hex_ascii_view);
1066 debug_set_level(adapter->erp_dbf, ZFCP_ERP_DBF_LEVEL);
1067
1068 if (!(adapter->cmd_dbf && adapter->abort_dbf &&
1069 adapter->in_els_dbf && adapter->erp_dbf)) {
1070 zfcp_adapter_debug_unregister(adapter);
1071 return -ENOMEM;
1072 }
1073
1074 return 0;
1075
1076}
1077
1078/**
1079 * zfcp_adapter_debug_unregister - unregisters debug feature for an adapter
1080 * @adapter: pointer to adapter for which debug features should be unregistered
1081 */
1082void
1083zfcp_adapter_debug_unregister(struct zfcp_adapter *adapter)
1084{
1085 debug_unregister(adapter->abort_dbf);
1086 debug_unregister(adapter->cmd_dbf);
1087 debug_unregister(adapter->erp_dbf);
1088 debug_unregister(adapter->in_els_dbf);
1089 adapter->abort_dbf = NULL;
1090 adapter->cmd_dbf = NULL;
1091 adapter->erp_dbf = NULL;
1092 adapter->in_els_dbf = NULL;
1093}
1094
1095void 931void
1096zfcp_dummy_release(struct device *dev) 932zfcp_dummy_release(struct device *dev)
1097{ 933{
@@ -1462,10 +1298,6 @@ zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter,
1462 /* see FC-FS */ 1298 /* see FC-FS */
1463 no_entries = (fcp_rscn_head->payload_len / 4); 1299 no_entries = (fcp_rscn_head->payload_len / 4);
1464 1300
1465 zfcp_in_els_dbf_event(adapter, "##rscn", status_buffer,
1466 fcp_rscn_head->payload_len);
1467
1468 debug_text_event(adapter->erp_dbf, 1, "unsol_els_rscn:");
1469 for (i = 1; i < no_entries; i++) { 1301 for (i = 1; i < no_entries; i++) {
1470 /* skip head and start with 1st element */ 1302 /* skip head and start with 1st element */
1471 fcp_rscn_element++; 1303 fcp_rscn_element++;
@@ -1497,8 +1329,6 @@ zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter,
1497 (ZFCP_STATUS_PORT_DID_DID, &port->status)) { 1329 (ZFCP_STATUS_PORT_DID_DID, &port->status)) {
1498 ZFCP_LOG_INFO("incoming RSCN, trying to open " 1330 ZFCP_LOG_INFO("incoming RSCN, trying to open "
1499 "port 0x%016Lx\n", port->wwpn); 1331 "port 0x%016Lx\n", port->wwpn);
1500 debug_text_event(adapter->erp_dbf, 1,
1501 "unsol_els_rscnu:");
1502 zfcp_erp_port_reopen(port, 1332 zfcp_erp_port_reopen(port,
1503 ZFCP_STATUS_COMMON_ERP_FAILED); 1333 ZFCP_STATUS_COMMON_ERP_FAILED);
1504 continue; 1334 continue;
@@ -1524,8 +1354,6 @@ zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter,
1524 */ 1354 */
1525 ZFCP_LOG_INFO("incoming RSCN, trying to open " 1355 ZFCP_LOG_INFO("incoming RSCN, trying to open "
1526 "port 0x%016Lx\n", port->wwpn); 1356 "port 0x%016Lx\n", port->wwpn);
1527 debug_text_event(adapter->erp_dbf, 1,
1528 "unsol_els_rscnk:");
1529 zfcp_test_link(port); 1357 zfcp_test_link(port);
1530 } 1358 }
1531 } 1359 }
@@ -1541,8 +1369,6 @@ zfcp_fsf_incoming_els_plogi(struct zfcp_adapter *adapter,
1541 struct zfcp_port *port; 1369 struct zfcp_port *port;
1542 unsigned long flags; 1370 unsigned long flags;
1543 1371
1544 zfcp_in_els_dbf_event(adapter, "##plogi", status_buffer, 28);
1545
1546 read_lock_irqsave(&zfcp_data.config_lock, flags); 1372 read_lock_irqsave(&zfcp_data.config_lock, flags);
1547 list_for_each_entry(port, &adapter->port_list_head, list) { 1373 list_for_each_entry(port, &adapter->port_list_head, list) {
1548 if (port->wwpn == (*(wwn_t *) & els_logi->nport_wwn)) 1374 if (port->wwpn == (*(wwn_t *) & els_logi->nport_wwn))
@@ -1556,8 +1382,6 @@ zfcp_fsf_incoming_els_plogi(struct zfcp_adapter *adapter,
1556 status_buffer->d_id, 1382 status_buffer->d_id,
1557 zfcp_get_busid_by_adapter(adapter)); 1383 zfcp_get_busid_by_adapter(adapter));
1558 } else { 1384 } else {
1559 debug_text_event(adapter->erp_dbf, 1, "unsol_els_plogi:");
1560 debug_event(adapter->erp_dbf, 1, &els_logi->nport_wwn, 8);
1561 zfcp_erp_port_forced_reopen(port, 0); 1385 zfcp_erp_port_forced_reopen(port, 0);
1562 } 1386 }
1563} 1387}
@@ -1570,8 +1394,6 @@ zfcp_fsf_incoming_els_logo(struct zfcp_adapter *adapter,
1570 struct zfcp_port *port; 1394 struct zfcp_port *port;
1571 unsigned long flags; 1395 unsigned long flags;
1572 1396
1573 zfcp_in_els_dbf_event(adapter, "##logo", status_buffer, 16);
1574
1575 read_lock_irqsave(&zfcp_data.config_lock, flags); 1397 read_lock_irqsave(&zfcp_data.config_lock, flags);
1576 list_for_each_entry(port, &adapter->port_list_head, list) { 1398 list_for_each_entry(port, &adapter->port_list_head, list) {
1577 if (port->wwpn == els_logo->nport_wwpn) 1399 if (port->wwpn == els_logo->nport_wwpn)
@@ -1585,8 +1407,6 @@ zfcp_fsf_incoming_els_logo(struct zfcp_adapter *adapter,
1585 status_buffer->d_id, 1407 status_buffer->d_id,
1586 zfcp_get_busid_by_adapter(adapter)); 1408 zfcp_get_busid_by_adapter(adapter));
1587 } else { 1409 } else {
1588 debug_text_event(adapter->erp_dbf, 1, "unsol_els_logo:");
1589 debug_event(adapter->erp_dbf, 1, &els_logo->nport_wwpn, 8);
1590 zfcp_erp_port_forced_reopen(port, 0); 1410 zfcp_erp_port_forced_reopen(port, 0);
1591 } 1411 }
1592} 1412}
@@ -1595,7 +1415,6 @@ static void
1595zfcp_fsf_incoming_els_unknown(struct zfcp_adapter *adapter, 1415zfcp_fsf_incoming_els_unknown(struct zfcp_adapter *adapter,
1596 struct fsf_status_read_buffer *status_buffer) 1416 struct fsf_status_read_buffer *status_buffer)
1597{ 1417{
1598 zfcp_in_els_dbf_event(adapter, "##undef", status_buffer, 24);
1599 ZFCP_LOG_NORMAL("warning: unknown incoming ELS 0x%08x " 1418 ZFCP_LOG_NORMAL("warning: unknown incoming ELS 0x%08x "
1600 "for adapter %s\n", *(u32 *) (status_buffer->payload), 1419 "for adapter %s\n", *(u32 *) (status_buffer->payload),
1601 zfcp_get_busid_by_adapter(adapter)); 1420 zfcp_get_busid_by_adapter(adapter));
@@ -1609,10 +1428,11 @@ zfcp_fsf_incoming_els(struct zfcp_fsf_req *fsf_req)
1609 u32 els_type; 1428 u32 els_type;
1610 struct zfcp_adapter *adapter; 1429 struct zfcp_adapter *adapter;
1611 1430
1612 status_buffer = fsf_req->data.status_read.buffer; 1431 status_buffer = (struct fsf_status_read_buffer *) fsf_req->data;
1613 els_type = *(u32 *) (status_buffer->payload); 1432 els_type = *(u32 *) (status_buffer->payload);
1614 adapter = fsf_req->adapter; 1433 adapter = fsf_req->adapter;
1615 1434
1435 zfcp_san_dbf_event_incoming_els(fsf_req);
1616 if (els_type == LS_PLOGI) 1436 if (els_type == LS_PLOGI)
1617 zfcp_fsf_incoming_els_plogi(adapter, status_buffer); 1437 zfcp_fsf_incoming_els_plogi(adapter, status_buffer);
1618 else if (els_type == LS_LOGO) 1438 else if (els_type == LS_LOGO)