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- changed ramdisk load address (#526339)

Browse Source 
- updated zfcpconf.sh script to new sysfs interface (#526324)
- added 1.8.1 fixes from IBM (#525495)
This commit is contained in:
Dan Horák 2009-09-30 20:09:33 +00:00
parent 03b8fe03dd
commit 4ea3cbdd49
5 changed files with 517 additions and 7 deletions
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27
0023-change-default-load-address-for-ramdisk.patch Normal file
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@ -0,0 +1,27 @@
From bfe74e60ab6529986a7c251042d17d57a3ccf675 Mon Sep 17 00:00:00 2001
From: =?utf-8?q?Dan=20Hor=C3=A1k?= <dan@danny.cz>
Date: Wed, 30 Sep 2009 18:19:23 +0200
Subject: [PATCH 23/25] change default load address for ramdisk
The default load address for the initial ramdisk is changed from
0x100000 to 0x200000 to allow larger kernels to be loaded.
---
zipl/include/zipl.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/zipl/include/zipl.h b/zipl/include/zipl.h
index 1f70e48..0f04072 100644
--- a/zipl/include/zipl.h
+++ b/zipl/include/zipl.h
@@ -21,7 +21,7 @@
#define ZIPL_STAGE3_ENTRY_ADDRESS 0xa028LL
#define DEFAULT_PARMFILE_ADDRESS 0x1000LL
#define DEFAULT_STAGE3_ADDRESS 0xa000LL
-#define DEFAULT_IMAGE_ADDRESS 0x10000LL
+#define DEFAULT_IMAGE_ADDRESS 0x20000LL
#define DEFAULT_RAMDISK_ADDRESS 0x800000LL
#define PSW_ADDRESS_MASK 0x000000007fffffffLL
--
1.6.3.3

106
0024-s390-tools-1.8.1-cpuplugd-limits.patch Normal file
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@ -0,0 +1,106 @@
From 0b02dbdbd248ca51583e9dce3bd57025b965534d Mon Sep 17 00:00:00 2001
From: =?utf-8?q?Dan=20Hor=C3=A1k?= <dan@danny.cz>
Date: Wed, 30 Sep 2009 18:22:15 +0200
Subject: [PATCH 24/25] s390-tools-1.8.1-cpuplugd-limits
Description: cpuplugd: fix cmm_pages allocation outside min and max range
Symptom: cpuplugd might instruct CMM to operated outside the predefined limits
Problem: This problem is basically caused by a missing new line separator at
the interface between the daemon and the proc file.
Solution: Add newline to the end of each line when writing to /proc/sys/vm/cmm_pages
Problem-ID: 55472
---
cpuplugd/config.c | 15 +++++++++++++--
cpuplugd/daemon.c | 11 -----------
cpuplugd/mem.c | 6 +++---
3 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/cpuplugd/config.c b/cpuplugd/config.c
index c013a65..bd3cb43 100644
--- a/cpuplugd/config.c
+++ b/cpuplugd/config.c
@@ -494,7 +494,7 @@ void check_config(struct config *cfg)
if (memory == 1) {
/*
* check that the initial value of cmm_pages is not below
- * cmm_min
+ * cmm_min or above cmm_max
*/
cmm_pagesize_start = get_cmmpages_size();
if (cmm_pagesize_start < cfg->cmm_min) {
@@ -506,7 +506,18 @@ void check_config(struct config *cfg)
syslog(LOG_INFO, "cmm_pages is below minimum "
"and will be increased\n");
}
- memunplug(cfg->cmm_min);
+ set_cmm_pages(cfg->cmm_min);
+ }
+ if (cmm_pagesize_start > cfg->cmm_max) {
+ if (debug && foreground == 1) {
+ printf("cmm_pages is above the maximum and will "
+ "be decreased.\n");
+ }
+ if (debug && foreground == 0) {
+ syslog(LOG_INFO, "cmm_pages is above the maximum "
+ "and will be decreased\n");
+ }
+ set_cmm_pages(cfg->cmm_max);
}
}
}
diff --git a/cpuplugd/daemon.c b/cpuplugd/daemon.c
index d0769f3..e1ef623 100644
--- a/cpuplugd/daemon.c
+++ b/cpuplugd/daemon.c
@@ -260,17 +260,6 @@ void check_max(struct config *cfg)
cpuid++;
}
}
- if (memory && get_cmmpages_size() > cfg->cmm_max) {
- if (debug && foreground == 1) {
- printf("cmm_pages is above the maximum and will "
- "be decreased.\n");
- }
- if (debug && foreground == 0) {
- syslog(LOG_INFO, "cmm_pages is above the maximum "
- "and will be decreased\n");
- }
- set_cmm_pages(cfg->cmm_max);
- }
}
/* check if we are running in an LPAR environment.
diff --git a/cpuplugd/mem.c b/cpuplugd/mem.c
index 2f3d219..6200904 100644
--- a/cpuplugd/mem.c
+++ b/cpuplugd/mem.c
@@ -138,7 +138,7 @@ int memunplug(int size)
":%s\n", strerror(errno));
return -1;
}
- fprintf(filp, "%d", new_size);
+ fprintf(filp, "%d\n", new_size);
if (debug && foreground == 1)
printf("changed number of pages permanently reserved "
"to %d \n", new_size);
@@ -173,7 +173,7 @@ int memplug(int size)
":%s\n", strerror(errno));
return -1;
}
- fprintf(filp, "%d", new_size);
+ fprintf(filp, "%d\n", new_size);
if (debug && foreground == 1)
printf("changed number of pages permanently reserved "
"to %d \n", new_size);
@@ -200,7 +200,7 @@ int set_cmm_pages(int size)
":%s\n", strerror(errno));
return -1;
}
- fprintf(filp, "%d", size);
+ fprintf(filp, "%d\n", size);
if (debug && foreground == 1)
printf("changed number of pages permanently reserved "
"to %d \n", size);
--
1.6.3.3

363
0025-s390-tools-1.8.1-misc-bugfixes.patch Normal file
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@ -0,0 +1,363 @@
From 60a3bf1df6d7039f75d889f15d7839f8482c2889 Mon Sep 17 00:00:00 2001
From: =?utf-8?q?Dan=20Hor=C3=A1k?= <dan@danny.cz>
Date: Wed, 30 Sep 2009 18:24:52 +0200
Subject: [PATCH 25/25] s390-tools-1.8.1-misc-bugfixes
Miscellaneous minor bufgixes for s390-tools RHEL5.5:
* lsshut: Fix printing of vmcmd shutdown action: Also print CP commands
that have more than one word.
* af_iucv: Doc update for connection-oriented datagram sockets.
---
ipl_tools/system.c | 13 +++--
man/af_iucv.7 | 174 +++++++++++++++++++++++++++++++++++++++++++++++-----
2 files changed, 166 insertions(+), 21 deletions(-)
diff --git a/ipl_tools/system.c b/ipl_tools/system.c
index 8294db0..fd5b76b 100644
--- a/ipl_tools/system.c
+++ b/ipl_tools/system.c
@@ -74,7 +74,7 @@ out:
char *substring(size_t start, size_t stop, const char *src, char *dst,
size_t size)
{
- int count;
+ unsigned int count;
count = stop - start;
if (count >= --size)
@@ -102,7 +102,7 @@ int check_for_root(void)
int ishex(char *cp)
{
- int i;
+ unsigned int i;
char c;
for (i = 0; i <= strlen(cp); i++) {
@@ -168,13 +168,13 @@ int strrd(char *string, char *file)
strncpy(path, file, sizeof(path));
if (access(path, R_OK) == 0) {
- filp = fopen(path, "r");
+ filp = fopen(path, "rb");
if (!filp) {
fprintf(stderr, "%s: Can not open %s: ", name, file);
fprintf(stderr, "%s\n", strerror(errno));
exit(1);
}
- rc = fscanf(filp, "%s", string);
+ rc = fread(string, 4096, 1, filp);
fclose(filp);
/*
* special handling is required for
@@ -192,8 +192,11 @@ int strrd(char *string, char *file)
file);
fprintf(stderr, "%s\n", strerror(errno));
return -1;
- } else
+ } else {
+ if (string[strlen(string) - 1] == '\n')
+ string[strlen(string) - 1] = 0;
return 0;
+ }
} else {
fprintf(stderr, "%s: Can not open %s: ", name, file);
fprintf(stderr, "%s\n", strerror(errno));
diff --git a/man/af_iucv.7 b/man/af_iucv.7
index cdd2691..9d56640 100644
--- a/man/af_iucv.7
+++ b/man/af_iucv.7
@@ -4,7 +4,7 @@
.\" Copyright IBM Corp. 2008, 2009.
.\" Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
.\" ----------------------------------------------------------------------
-.TH AF_IUCV 7 "March 2009" "s390-tools" "Linux Programmer's Manual"
+.TH AF_IUCV 7 "September 2009" "s390-tools" "Linux Programmer's Manual"
.SH NAME
iucv, AF_IUCV \- Sockets for z/VM IUCV communication
.
@@ -13,15 +13,17 @@ iucv, AF_IUCV \- Sockets for z/VM IUCV communication
.SH SYNOPSIS
.B #include <sys/socket.h>
-.IB iucv_socket " = socket(AF_IUCV, SOCK_STREAM, 0);"
+.IB iucv_stream_socket " = socket(AF_IUCV, SOCK_STREAM, 0);"
+.br
+.IB iucv_packet_socket " = socket(AF_IUCV, SOCK_SEQPACKET, 0);"
.
.
.
.SH DESCRIPTION
The Inter-User Communication Vehicle (IUCV) is a z/VM communication facility
that enables a program running in one z/VM guest virtual machine to communicate
-with another z/VM guest virtual machine, or with a control program, or even
-with itself.
+with another z/VM guest virtual machine, or with the control program (CP), or
+even with itself.
The AF_IUCV address family provides communication and addressing in the IUCV
domain. In the IUCV domain, address spaces or virtual machines can use the
@@ -32,7 +34,11 @@ AF_IUCV connects socket applications running on different Linux guest operating
systems, or it connects a Linux application to another socket application
running in another z/VM guest operating system (like z/VM CMS).
-The AF_IUCV address family supports stream sockets only.
+The AF_IUCV address family supports stream-oriented sockets
+(\f(CWSOCK_STREAM\fP) and connection-oriented datagram sockets
+(\f(CWSOCK_SEQPACKET\fP). Stream-oriented sockets fragment data over several
+native IUCV messages, whereas sockets of type SOCK_SEQPACKET map a particular
+socket write or read operation to a single native IUCV message.
.SS Features
The AF_IUCV address family provides:
@@ -78,28 +84,106 @@ are reserved for future use. The
.B siucv_port
and
.B siucv_addr
-fields must be zero. The
+fields must be zero. The
.B siucv_nodeid
field must be set to exactly eight blank characters.
.
.TP
.B siucv_userid
is set to the z/VM user ID of the Linux guest virtual machine running the
-application which owns the address. The field must be eight characters long,
+application that owns the address. The field must be eight characters long,
padded with blanks on the right.
For
.BR bind "(2), " siucv_userid
-must contain blanks only, because AF_IUCV sets the correct z/VM user ID.
+must contain blanks only to allow AF_IUCV to set the z/VM user ID of the Linux
+guest operating system.
.
.TP
.B siucv_name
-is set to the application name by which the socket is known. Servers advertises
+is set to the application name by which the socket is known. Servers advertise
application names and clients use these application names to connect to servers.
This field must be eight characters long, padded with blanks on the right.
.
.
.
+.SH "SOCKET OPTIONS"
+Socket options can be set with
+.BR setsockopt (2)
+and read with
+.BR getsockopt (2)
+by specifying \f(CWSOL_IUCV\fP as the socket level.
+
+.TP
+.B SO_IPRMDATA_MSG
+Enables the application to send up to seven bytes of socket data in the
+parameter list of an IUCV message. Use this option to increase performance
+when transferring small amounts of data.
+
+To send data in the parameter list, specify a non-zero integer value.
+
+.RS
+.TP
+.B Note:
+Use this option with care, older AF_IUCV versions do not support receiving
+socket data in the parameter list and shut down the socket on which
+a parameter list message has been received.
+.RE
+.
+.TP
+.B SO_MSGLIMIT
+Modifies the message limit for new IUCV communication paths. The message
+limit specifies the maximum number of outstanding messages that are allowed
+for established connections. This setting can be lowered by z/VM when an IUCV
+connection is established.
+
+The message limit is an integer value in range 1 to 65535.
+The default value is 65535.
+
+The message limit must be set before
+.BR connect "(2) or " listen (2)
+is called for sockets.
+.br
+For sockets that are already connected or listening for connections,
+the message limit cannot be changed.
+.br
+New sockets created by
+.BR accept (2)
+inherit the message limit that has been set for the listening socket.
+
+.BR getsockopt (2)
+returns the default message limit or the limit that has been set.
+For connected sockets, the current message limit is returned. The current
+message limit is assigned by z/VM for each connection and it depends
+on the IUCV MSGLIMIT statement specified for the z/VM guest virtual machine.
+The current message limit is the lower value of the socket option and the
+value specified for the IUCV MSGLIMIT statement.
+
+See the SECURITY section below for setting IUCV MSGLIMIT authorizations.
+.
+.
+.
+.SH "ANCILLARY DATA"
+Ancillary data is sent and received using the
+.BR sendmsg (2)
+and
+.BR recvmsg (2)\fR.\fP
+To send ancillary data, set the \fBcmsg_level\fP field of struct \fBcmsghdr\fP
+to \f(CWSOL_IUCV\fP and the \fBcmsg_type\fP field to the type.
+.br
+For more information see
+.BR cmsg (3).
+
+.TP
+.B SCM_IUCV_TRGCLS
+Send or receive IUCV target class information. The IUCV target class can be used
+to classify and identify an IUCV message at IUCV protocol level. If the target
+class is not specified as ancillary data, it is set to zero.
+
+The target class is a number of type \fBuint32_t\fP.
+.
+.
+.
.
.SH SECURITY
This section provides an overview of the required IUCV statements for your z/VM
@@ -129,20 +213,20 @@ any other z/VM guest virtual machine.
.TP
.B IUCV \fIuser_ID\fP
allows this z/VM guest virtual machine to establish a communication path to the
-z/VM guest virtual machine with the z/VM user ID \fIuser_ID\fP.
+z/VM guest virtual machine with the z/VM user ID \fIuser_ID\fP.
.PP
You can specify multiple IUCV statements. To any of these IUCV statements you
can append the
.B MSGLIMIT \fIlimit\fP
parameter.
\fIlimit\fP specifies the maximum number of outstanding messages that are
-allowed for each connection authorized by this entry.
+allowed for each connection authorized by this statement.
If no value is specified for \fBMSGLIMIT\fP, AF_IUCV requests 65535,
which is the maximum supported by IUCV.
.
.
.SS "Setting a connection limit"
-Use the \fBOPTION\fP statement to limit the number of concurrent connections.
+Use the \fBOPTION\fP statement to limit the number of concurrent connections.
.TP
.B OPTION MAXCONN \fImaxno\fP
\fImaxno\fP specifies the maximum number of IUCV connections allowed for this
@@ -151,7 +235,7 @@ virtual machine. The default is 64. The maximum is 65535.
.
.SS "Example"
These sample statements allow any z/VM guest virtual machine to connect to your
-z/VM guest virtual machine with a maximum of 10000 outstanding messages for each
+z/VM guest virtual machine with a maximum of 10\^000 outstanding messages for each
incoming connection. Your z/VM guest virtual machine is permitted to connect to
all other z/VM guest virtual machines. The total number of connections for your
z/VM guest virtual machine cannot exceed 100.
@@ -200,6 +284,14 @@ This error can be temporary and the application may try again after some time.
If the error occurs repeatedly, try to increase the maximum number of
connections (for one or both z/VM guest virtual machines).
See the SECURITY section about the required authorization statement.
+
+.B sendmsg (2)
+called but the maximum number of outstanding IUCV messages for the socket
+connection is reached; i.e. there are data available that has not yet been
+received by the communication partner.
+.br
+If necessary, change the IUCV message limit as explained in section
+"IUCV AUTHORIZATIONS".
.
.TP
.B EACCES
@@ -217,10 +309,22 @@ called but the AF_IUCV setting in the
field of the passed address is missing.
.BR listen (2)
-called but the AF_IUCV socket has not yet been bound to an address. Always call
+called but the AF_IUCV socket has not yet been bound to an address.
+Always call
.BR bind (2)
before
.BR listen (2).
+
+.BR setsockopt (2)
+called with option \fBSO_MSGLIMIT\fP for sockets that are already connected.
+.
+.TP
+.B ENOPROTOOPT
+.BR setsockopt (2),
+or
+.BR getsockopt (2)
+called but the socket level has not been set to \f(CWSOL_IUCV\fP, or the
+specified socket option is not supported.
.
.TP
.B EOPNOTSUPP
@@ -232,13 +336,27 @@ might be called with the
flag set.
AF_IUCV does not support sending or receiving \fIout-of-band\fP data on its
sockets.
+
+For \f(CWSOCK_SEQPACKET\fP sockets,
+.BR sendmsg (2)
+called without the
+.I MSG_EOR
+flag set.
+AF_IUCV does not support segmentation, and thus, the "end-of-record"
+(\fIMSG_EOR\fP) flag must always be set.
+.
+.TP
+.B EPROTONOSUPPORT
+.BR socket (2)
+called with a protocol that is not supported. The socket protocol parameter
+must be either zero or \f(CWPF_IUCV\fP.
.
.TP
.B EAFNOSUPPORT
.BR socket (2)
-called with \fIAF_IUCV\fP but the AF_IUCV protocol / addressing family is not
+called with \f(CWAF_IUCV\fP but the AF_IUCV address family is not
supported by the current Linux kernel. Ensure that your Linux kernel has been
-compiled with support for the AF_IUCV addressing family.
+compiled with support for the AF_IUCV address family.
.
.PP
Other errors can be generated by the generic socket layer. See the respective
@@ -251,6 +369,9 @@ manual pages for more information.
.BR recvmsg (2),
.BR sendmsg (2),
.BR socket (2),
+.BR setsockopt (2),
+.BR getsockopt (2),
+.BR cmsg (3),
.BR socket (7)
.I "Linux on System z - Device Drivers, Features, and Commands"
@@ -258,3 +379,24 @@ manual pages for more information.
.I "z/VM CP Planning and Administration"
.br
.I "z/VM CP Programming Services"
+.
+.
+.
+.SH "HISTORY"
+.TP
+.B AF_IUCV, version 1.0
+Initial version.
+.TP
+.B AF_IUCV, version 1.1
+.RS 4
+.IP "\(bu" 4
+Support for sending socket data in the parameter list of an IUCV message
+(\f(CWSO_IPRMDATA_MSG\fP).
+.IP "\(bu" 4
+Access the target class of an IUCV message as ancillary data using
+.BR sendmsg "(2) and " recvmsg (2).
+.IP "\(bu" 4
+Support for \f(CWSOCK_SEQPACKET\fP sockets to facilitate development of native
+IUCV applications that interact with AF_IUCV.
+.RE
+
--
1.6.3.3

19
s390utils.spec
View File

@ -8,7 +8,7 @@ Name: s390utils
Summary: Utilities and daemons for IBM System/z Summary: Utilities and daemons for IBM System/z
Group: System Environment/Base Group: System Environment/Base
Version: 1.8.1 Version: 1.8.1
Release: 6%{?dist} Release: 7%{?dist}
Epoch: 2 Epoch: 2
License: GPLv2 and GPLv2+ and CPL License: GPLv2 and GPLv2+ and CPL
Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n) Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@ -46,6 +46,9 @@ Patch19: 0019-s390-tools-1.8.1-lsluns-disk-enc.patch
Patch20: 0020-s390-tools-1.8.1-cpuplugd-cmminit.patch Patch20: 0020-s390-tools-1.8.1-cpuplugd-cmminit.patch
Patch21: 0021-s390-tools-1.8.1-lszfcp-perf.patch Patch21: 0021-s390-tools-1.8.1-lszfcp-perf.patch
Patch22: 0022-fix-string-overflow-in-vtoc_volume_label_init.patch Patch22: 0022-fix-string-overflow-in-vtoc_volume_label_init.patch
Patch23: 0023-change-default-load-address-for-ramdisk.patch
Patch24: 0024-s390-tools-1.8.1-cpuplugd-limits.patch
Patch25: 0025-s390-tools-1.8.1-misc-bugfixes.patch
Patch100: cmsfs-1.1.8-warnings.patch Patch100: cmsfs-1.1.8-warnings.patch
Patch101: cmsfs-1.1.8-kernel26.patch Patch101: cmsfs-1.1.8-kernel26.patch
@ -128,6 +131,15 @@ be used together with the zSeries (s390) Linux kernel and device drivers.
# Fix string overflow in vtoc_volume_label_init (#525318) # Fix string overflow in vtoc_volume_label_init (#525318)
%patch22 -p1 -b .vtoc-label %patch22 -p1 -b .vtoc-label
# Change default load address for ramdisk (#526339)
%patch23 -p1 -b .ramdisk-address
# Fix cmm_pages allocation outside min and max range (#525495)
%patch24 -p1 -b .ramdisk-address
# Miscelaneous fixes for 1.8.1 (#525495)
%patch25 -p1 -b .misc
# #
# cmsfs # cmsfs
# #
@ -776,6 +788,11 @@ User-space development files for the s390/s390x architecture.
%changelog %changelog
* Wed Sep 30 2009 Dan Horák <dan[at]danny.cz> 2:1.8.1-7
- changed ramdisk load address (#526339)
- updated zfcpconf.sh script to new sysfs interface (#526324)
- added 1.8.1 fixes from IBM (#525495)
* Fri Sep 25 2009 Dan Horák <dan[at]danny.cz> 2:1.8.1-6 * Fri Sep 25 2009 Dan Horák <dan[at]danny.cz> 2:1.8.1-6
- fix issues in lib-zfcp-hbaapi with a patch - fix issues in lib-zfcp-hbaapi with a patch

9
zfcpconf.sh
View File

@ -10,15 +10,13 @@
# #
# manual setup: # manual setup:
# modprobe zfcp # modprobe zfcp
# echo WWPN > /sys/bus/ccw/drivers/zfcp/0.0.4000/port_add
# echo LUN > /sys/bus/ccw/drivers/zfcp/0.0.4000/WWPN/unit_add
# echo 1 > /sys/bus/ccw/drivers/zfcp/0.0.4000/online # echo 1 > /sys/bus/ccw/drivers/zfcp/0.0.4000/online
# echo LUN > /sys/bus/ccw/drivers/zfcp/0.0.4000/WWPN/unit_add
# #
# Example: # Example:
# modprobe zfcp # modprobe zfcp
# echo 0x5005076300c213e9 > /sys/bus/ccw/drivers/zfcp/0.0.4000/port_add
# echo 0x5022000000000000 > /sys/bus/ccw/drivers/zfcp/0.0.4000/0x5005076300c213e9/unit_add
# echo 1 > /sys/bus/ccw/drivers/zfcp/0.0.4000/online # echo 1 > /sys/bus/ccw/drivers/zfcp/0.0.4000/online
# echo 0x5022000000000000 > /sys/bus/ccw/drivers/zfcp/0.0.4000/0x5005076300c213e9/unit_add
CONFIG=/etc/zfcp.conf CONFIG=/etc/zfcp.conf
PATH=/bin:/usr/bin:/sbin:/usr/sbin PATH=/bin:/usr/bin:/sbin:/usr/sbin
@ -39,8 +37,7 @@ if [ -f "$CONFIG" ]; then
elif [ $numparams == 3 ]; then elif [ $numparams == 3 ]; then
read DEVICE WWPN FCPLUN < <(echo $line) read DEVICE WWPN FCPLUN < <(echo $line)
fi fi
[ ! -d /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/$WWPN ] && echo $WWPN > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/port_add
[ ! -d /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/$WWPN/$FCPLUN ] && echo $FCPLUN > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/$WWPN/unit_add
echo 1 > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/online echo 1 > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/online
[ ! -d /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/$WWPN/$FCPLUN ] && echo $FCPLUN > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/$WWPN/unit_add
done done
fi fi