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Diffstat (limited to 'drivers/s390/scsi/zfcp_aux.c')
-rw-r--r--drivers/s390/scsi/zfcp_aux.c91
1 files changed, 50 insertions, 41 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 395cfc6a344f..9cd789b8acd4 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -1,18 +1,8 @@
/*
+ * This file is part of the zfcp device driver for
+ * FCP adapters for IBM System z9 and zSeries.
*
- * linux/drivers/s390/scsi/zfcp_aux.c
- *
- * FCP adapter driver for IBM eServer zSeries
- *
- * (C) Copyright IBM Corp. 2002, 2004
- *
- * Author(s): Martin Peschke <mpeschke@de.ibm.com>
- * Raimund Schroeder <raimund.schroeder@de.ibm.com>
- * Aron Zeh
- * Wolfgang Taphorn
- * Stefan Bader <stefan.bader@de.ibm.com>
- * Heiko Carstens <heiko.carstens@de.ibm.com>
- * Andreas Herrmann <aherrman@de.ibm.com>
+ * (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
@@ -29,6 +19,20 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+/*
+ * Driver authors:
+ * Martin Peschke (originator of the driver)
+ * Raimund Schroeder
+ * Aron Zeh
+ * Wolfgang Taphorn
+ * Stefan Bader
+ * Heiko Carstens (kernel 2.6 port of the driver)
+ * Andreas Herrmann
+ * Maxim Shchetynin
+ * Volker Sameske
+ * Ralph Wuerthner
+ */
+
#include "zfcp_ext.h"
/* accumulated log level (module parameter) */
@@ -75,15 +79,9 @@ static struct miscdevice zfcp_cfdc_misc = {
/* declare driver module init/cleanup functions */
module_init(zfcp_module_init);
-MODULE_AUTHOR("Heiko Carstens <heiko.carstens@de.ibm.com>, "
- "Andreas Herrman <aherrman@de.ibm.com>, "
- "Martin Peschke <mpeschke@de.ibm.com>, "
- "Raimund Schroeder <raimund.schroeder@de.ibm.com>, "
- "Wolfgang Taphorn <taphorn@de.ibm.com>, "
- "Aron Zeh <arzeh@de.ibm.com>, "
- "IBM Deutschland Entwicklung GmbH");
+MODULE_AUTHOR("IBM Deutschland Entwicklung GmbH - linux390@de.ibm.com");
MODULE_DESCRIPTION
- ("FCP (SCSI over Fibre Channel) HBA driver for IBM eServer zSeries");
+ ("FCP (SCSI over Fibre Channel) HBA driver for IBM System z9 and zSeries");
MODULE_LICENSE("GPL");
module_param(device, charp, 0400);
@@ -291,12 +289,11 @@ zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command,
goto out;
}
- sg_list = kmalloc(sizeof(struct zfcp_sg_list), GFP_KERNEL);
+ sg_list = kzalloc(sizeof(struct zfcp_sg_list), GFP_KERNEL);
if (sg_list == NULL) {
retval = -ENOMEM;
goto out;
}
- memset(sg_list, 0, sizeof(*sg_list));
if (command != ZFCP_CFDC_IOC) {
ZFCP_LOG_INFO("IOC request code 0x%x invalid\n", command);
@@ -478,14 +475,13 @@ zfcp_sg_list_alloc(struct zfcp_sg_list *sg_list, size_t size)
sg_list->count = size >> PAGE_SHIFT;
if (size & ~PAGE_MASK)
sg_list->count++;
- sg_list->sg = kmalloc(sg_list->count * sizeof(struct scatterlist),
+ sg_list->sg = kcalloc(sg_list->count, sizeof(struct scatterlist),
GFP_KERNEL);
if (sg_list->sg == NULL) {
sg_list->count = 0;
retval = -ENOMEM;
goto out;
}
- memset(sg_list->sg, 0, sg_list->count * sizeof(struct scatterlist));
for (i = 0, sg = sg_list->sg; i < sg_list->count; i++, sg++) {
sg->length = min(size, PAGE_SIZE);
@@ -744,7 +740,7 @@ struct zfcp_unit *
zfcp_unit_enqueue(struct zfcp_port *port, fcp_lun_t fcp_lun)
{
struct zfcp_unit *unit, *tmp_unit;
- scsi_lun_t scsi_lun;
+ unsigned int scsi_lun;
int found;
/*
@@ -758,10 +754,9 @@ zfcp_unit_enqueue(struct zfcp_port *port, fcp_lun_t fcp_lun)
if (unit)
return NULL;
- unit = kmalloc(sizeof (struct zfcp_unit), GFP_KERNEL);
+ unit = kzalloc(sizeof (struct zfcp_unit), GFP_KERNEL);
if (!unit)
return NULL;
- memset(unit, 0, sizeof (struct zfcp_unit));
/* initialise reference count stuff */
atomic_set(&unit->refcount, 0);
@@ -929,13 +924,12 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
*/
/* try to allocate new adapter data structure (zeroed) */
- adapter = kmalloc(sizeof (struct zfcp_adapter), GFP_KERNEL);
+ adapter = kzalloc(sizeof (struct zfcp_adapter), GFP_KERNEL);
if (!adapter) {
ZFCP_LOG_INFO("error: allocation of base adapter "
"structure failed\n");
goto out;
}
- memset(adapter, 0, sizeof (struct zfcp_adapter));
ccw_device->handler = NULL;
@@ -997,12 +991,6 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
/* intitialise SCSI ER timer */
init_timer(&adapter->scsi_er_timer);
- /* set FC service class used per default */
- adapter->fc_service_class = ZFCP_FC_SERVICE_CLASS_DEFAULT;
-
- sprintf(adapter->name, "%s", zfcp_get_busid_by_adapter(adapter));
- ASCEBC(adapter->name, strlen(adapter->name));
-
/* mark adapter unusable as long as sysfs registration is not complete */
atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
@@ -1139,10 +1127,9 @@ zfcp_port_enqueue(struct zfcp_adapter *adapter, wwn_t wwpn, u32 status,
return NULL;
}
- port = kmalloc(sizeof (struct zfcp_port), GFP_KERNEL);
+ port = kzalloc(sizeof (struct zfcp_port), GFP_KERNEL);
if (!port)
return NULL;
- memset(port, 0, sizeof (struct zfcp_port));
/* initialise reference count stuff */
atomic_set(&port->refcount, 0);
@@ -1354,18 +1341,19 @@ static void
zfcp_fsf_incoming_els_plogi(struct zfcp_adapter *adapter,
struct fsf_status_read_buffer *status_buffer)
{
- logi *els_logi = (logi *) status_buffer->payload;
+ struct fsf_plogi *els_plogi;
struct zfcp_port *port;
unsigned long flags;
+ els_plogi = (struct fsf_plogi *) status_buffer->payload;
read_lock_irqsave(&zfcp_data.config_lock, flags);
list_for_each_entry(port, &adapter->port_list_head, list) {
- if (port->wwpn == (*(wwn_t *) & els_logi->nport_wwn))
+ if (port->wwpn == (*(wwn_t *) &els_plogi->serv_param.wwpn))
break;
}
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
- if (!port || (port->wwpn != (*(wwn_t *) & els_logi->nport_wwn))) {
+ if (!port || (port->wwpn != (*(wwn_t *) &els_plogi->serv_param.wwpn))) {
ZFCP_LOG_DEBUG("ignored incoming PLOGI for nonexisting port "
"with d_id 0x%08x on adapter %s\n",
status_buffer->d_id,
@@ -1760,4 +1748,25 @@ zfcp_handle_els_rjt(u32 sq, struct zfcp_ls_rjt_par *rjt_par)
return ret;
}
+/**
+ * zfcp_plogi_evaluate - evaluate PLOGI playload and copy important fields
+ * into zfcp_port structure
+ * @port: zfcp_port structure
+ * @plogi: plogi payload
+ */
+void
+zfcp_plogi_evaluate(struct zfcp_port *port, struct fsf_plogi *plogi)
+{
+ port->maxframe_size = plogi->serv_param.common_serv_param[7] |
+ ((plogi->serv_param.common_serv_param[6] & 0x0F) << 8);
+ if (plogi->serv_param.class1_serv_param[0] & 0x80)
+ port->supported_classes |= FC_COS_CLASS1;
+ if (plogi->serv_param.class2_serv_param[0] & 0x80)
+ port->supported_classes |= FC_COS_CLASS2;
+ if (plogi->serv_param.class3_serv_param[0] & 0x80)
+ port->supported_classes |= FC_COS_CLASS3;
+ if (plogi->serv_param.class4_serv_param[0] & 0x80)
+ port->supported_classes |= FC_COS_CLASS4;
+}
+
#undef ZFCP_LOG_AREA
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