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path: root/drivers/s390/scsi/zfcp_scsi.c
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Diffstat (limited to 'drivers/s390/scsi/zfcp_scsi.c')
-rw-r--r--drivers/s390/scsi/zfcp_scsi.c89
1 files changed, 17 insertions, 72 deletions
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 9e6d07d7b3c8..46e14f22ec18 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -1,18 +1,8 @@
/*
- *
- * linux/drivers/s390/scsi/zfcp_scsi.c
- *
- * FCP adapter driver for IBM eServer zSeries
- *
- * (C) Copyright IBM Corp. 2002, 2004
+ * This file is part of the zfcp device driver for
+ * FCP adapters for IBM System z9 and zSeries.
*
- * 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
@@ -45,8 +35,8 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *);
static int zfcp_task_management_function(struct zfcp_unit *, u8,
struct scsi_cmnd *);
-static struct zfcp_unit *zfcp_unit_lookup(struct zfcp_adapter *, int, scsi_id_t,
- scsi_lun_t);
+static struct zfcp_unit *zfcp_unit_lookup(struct zfcp_adapter *, int,
+ unsigned int, unsigned int);
static struct device_attribute *zfcp_sysfs_sdev_attrs[];
@@ -161,14 +151,6 @@ set_driver_byte(u32 * result, char status)
set_byte(result, status, 3);
}
-/*
- * function: zfcp_scsi_slave_alloc
- *
- * purpose:
- *
- * returns:
- */
-
static int
zfcp_scsi_slave_alloc(struct scsi_device *sdp)
{
@@ -195,14 +177,6 @@ zfcp_scsi_slave_alloc(struct scsi_device *sdp)
return retval;
}
-/*
- * function: zfcp_scsi_slave_destroy
- *
- * purpose:
- *
- * returns:
- */
-
static void
zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
{
@@ -374,18 +348,9 @@ zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt,
return zfcp_scsi_command_async(adapter, unit, scpnt, NULL);
}
-/*
- * function: zfcp_unit_lookup
- *
- * purpose:
- *
- * returns:
- *
- * context:
- */
static struct zfcp_unit *
-zfcp_unit_lookup(struct zfcp_adapter *adapter, int channel, scsi_id_t id,
- scsi_lun_t lun)
+zfcp_unit_lookup(struct zfcp_adapter *adapter, int channel, unsigned int id,
+ unsigned int lun)
{
struct zfcp_port *port;
struct zfcp_unit *unit, *retval = NULL;
@@ -491,13 +456,6 @@ zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
return retval;
}
-/*
- * function: zfcp_scsi_eh_device_reset_handler
- *
- * purpose:
- *
- * returns:
- */
int
zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt)
{
@@ -625,13 +583,6 @@ zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
return SUCCESS;
}
-/*
- * function:
- *
- * purpose:
- *
- * returns:
- */
int
zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
{
@@ -657,10 +608,6 @@ zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
adapter->scsi_host->unique_id = unique_id++; /* FIXME */
adapter->scsi_host->max_cmd_len = ZFCP_MAX_SCSI_CMND_LENGTH;
adapter->scsi_host->transportt = zfcp_transport_template;
- /*
- * Reverse mapping of the host number to avoid race condition
- */
- adapter->scsi_host_no = adapter->scsi_host->host_no;
/*
* save a pointer to our own adapter data structure within
@@ -678,13 +625,6 @@ zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
return retval;
}
-/*
- * function:
- *
- * purpose:
- *
- * returns:
- */
void
zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter)
{
@@ -703,7 +643,6 @@ zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter)
scsi_remove_host(shost);
scsi_host_put(shost);
adapter->scsi_host = NULL;
- adapter->scsi_host_no = 0;
atomic_clear_mask(ZFCP_STATUS_ADAPTER_REGISTERED, &adapter->status);
return;
@@ -817,10 +756,9 @@ zfcp_get_fc_host_stats(struct Scsi_Host *shost)
if (!fc_stats)
return NULL;
- data = kmalloc(sizeof(*data), GFP_KERNEL);
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return NULL;
- memset(data, 0, sizeof(*data));
ret = zfcp_fsf_exchange_port_data(NULL, adapter, data);
if (ret) {
@@ -848,10 +786,9 @@ zfcp_reset_fc_host_stats(struct Scsi_Host *shost)
int ret;
adapter = (struct zfcp_adapter *)shost->hostdata[0];
- data = kmalloc(sizeof(*data), GFP_KERNEL);
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return;
- memset(data, 0, sizeof(*data));
ret = zfcp_fsf_exchange_port_data(NULL, adapter, data);
if (ret == 0) {
@@ -863,11 +800,18 @@ zfcp_reset_fc_host_stats(struct Scsi_Host *shost)
}
}
+static void zfcp_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout)
+{
+ rport->dev_loss_tmo = timeout;
+}
+
struct fc_function_template zfcp_transport_functions = {
.show_starget_port_id = 1,
.show_starget_port_name = 1,
.show_starget_node_name = 1,
.show_rport_supported_classes = 1,
+ .show_rport_maxframe_size = 1,
+ .show_rport_dev_loss_tmo = 1,
.show_host_node_name = 1,
.show_host_port_name = 1,
.show_host_permanent_port_name = 1,
@@ -877,6 +821,7 @@ struct fc_function_template zfcp_transport_functions = {
.show_host_serial_number = 1,
.get_fc_host_stats = zfcp_get_fc_host_stats,
.reset_fc_host_stats = zfcp_reset_fc_host_stats,
+ .set_rport_dev_loss_tmo = zfcp_set_rport_dev_loss_tmo,
/* no functions registered for following dynamic attributes but
directly set by LLDD */
.show_host_port_type = 1,