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hsci: Add new tool to control HiperSockets Converged Interfaces
hsci is used to control and show HSCI (HiperSockets Converged Interfaces) settings. A HiperSockets interface and an external network interface are converged to an HSCI interface. Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: Wenjia Zhang <wenjia@linux.ibm.com> Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Wenjia Zhang
committed by
Jan Höppner
Jan Höppner
parent
bc7359d2a3
commit
0566a492ae
@@ -5,6 +5,7 @@ Release history for s390-tools (MIT version)
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For Linux kernel version: 5.x
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Changes of existing tools:
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- hsci: New tool to manage HSCI interfaces
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Bug Fixes:
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2
Makefile
2
Makefile
@@ -9,7 +9,7 @@ TOOL_DIRS = zipl zdump fdasd dasdfmt dasdview tunedasd \
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vmconvert vmcp man mon_tools dasdinfo vmur cpuplugd ipl_tools \
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ziomon iucvterm hyptop cmsfs-fuse qethqoat zfcpdump zdsfs cpumf \
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systemd hmcdrvfs cpacfstats zdev dump2tar zkey netboot etc zpcictl \
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genprotimg lsstp
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genprotimg lsstp hsci
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SUB_DIRS = $(LIB_DIRS) $(TOOL_DIRS)
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@@ -249,6 +249,9 @@ Package contents
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Management Foundation - Web Edition, and is used to manage keys in an
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enterprise.
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* hsci:
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Manage HiperSockets Converged Interfaces (HSCI).
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For more information refer to the following publications:
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* "Device Drivers, Features, and Commands" chapter "Useful Linux commands"
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16
hsci/Makefile
Normal file
16
hsci/Makefile
Normal file
@@ -0,0 +1,16 @@
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include ../common.mak
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all:
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install: hsci
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$(SED) -e 's/%S390_TOOLS_VERSION%/$(S390_TOOLS_RELEASE)/' \
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< hsci >$(DESTDIR)$(BINDIR)/hsci; \
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chown $(OWNER).$(GROUP) $(DESTDIR)$(BINDIR)/hsci; \
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chmod 755 $(DESTDIR)$(BINDIR)/hsci; \
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$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR) $(DESTDIR)$(MANDIR)/man8
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$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 hsci.8 \
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$(DESTDIR)$(MANDIR)/man8
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clean:
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.PHONY: all install clean
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441
hsci/hsci
Executable file
441
hsci/hsci
Executable file
@@ -0,0 +1,441 @@
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#!/bin/bash
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#
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# hsci - Tool to manage HiperSockets Converged Interfaces (HSCI)
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#
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# Copyright IBM Corp. 2020
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#
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# s390-tools is free software; you can redistribute it and/or modify
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# it under the terms of the MIT license. See LICENSE for details.
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#
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hsdev=""
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ndev=""
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hsci=""
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hsdev_mac=""
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hsif_pnetid=""
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netif_pnetid=""
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hsci_pnetid=""
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function usage {
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cat <<-EOD
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Usage: hsci COMMAND [OPTION]
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This tool is designed to control and show HSCI (HiperSockets Converged
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Interfaces) settings. A HiperSockets interface and an external network
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COMMANDS
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add HIPERSOCKETS_DEV NET_DEV Adds an HSCI interface
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del HSCI_NAME Deletes an HSCI interface
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show Lists the configured HSCI interfaces
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OPTIONS:
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-v, --version Prints the version number of the hsci tool and exits
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-h, --help Displays the help information for the command
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EOD
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}
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function prereqs_check {
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if ! [ -x "$(command -v ip)" ]; then
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echo "Error: No iproute2 installed on this system" >&2
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return 1
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fi
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}
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function check_pnetids {
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# get PNETID of the HS
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local hsif_pnetids=""
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local netif_pnetids=""
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if [ -e /sys/class/net/$hsdev/device/util_string ]; then
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hsif_pnetids="$(cat /sys/class/net/$hsdev/device/util_string | tr -d '\000' | iconv -f IBM-1047 -t ASCII)"
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else
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if [ -e /sys/class/net/$hsdev/device/chpid ]; then
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chpid="$(cat /sys/class/net/$hsdev/device/chpid | tr [:upper:] [:lower:])"
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hsif_pnetids="$(cat /sys/devices/css0/chp0.$chpid/util_string | tr -d '\000' | iconv -f IBM-1047 -t ASCII)"
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fi
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fi
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if [ "$hsif_pnetids" != "" ]; then
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port_hsif="$(cat /sys/class/net/$hsdev/dev_port)"
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(( idx=16*$port_hsif+1 ))
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(( end=$idx+15 ))
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hsif_pnetid="$(echo "$hsif_pnetids" | cut -c $idx-$end | tr -d ' ')"
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fi
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# get PNETID of the NET_DEV
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if [ -e /sys/class/net/$ndev/device/util_string ]; then
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netif_pnetids="$(cat /sys/class/net/$ndev/device/util_string | tr -d '\000' | iconv -f IBM-1047 -t ASCII)"
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else
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if [ -e /sys/class/net/$ndev/device/chpid ]; then
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chpid="$(cat /sys/class/net/$ndev/device/chpid | tr [:upper:] [:lower:])"
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netif_pnetids="$(cat /sys/devices/css0/chp0.$chpid/util_string | tr -d '\000' | iconv -f IBM-1047 -t ASCII)"
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fi
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fi
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if [ "$netif_pnetids" != "" ]; then
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port_netif="$(cat /sys/class/net/$ndev/dev_port)"
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(( idx=16*$port_netif+1 ))
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(( end=$idx+15 ))
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netif_pnetid="$(echo "$netif_pnetids" | cut -c $idx-$end | tr -d ' ')"
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fi
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#Check PNETIDs
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if [ "$hsif_pnetid" != "" ] && [ "$netif_pnetid" != "" ] && [ "$netif_pnetid" != "$hsif_pnetid" ]; then
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echo "Error: $hsdev and $ndev have different PNETIDs! They are $hsif_pnetid and $netif_pnetid respectively" >&2
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return 1
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fi
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if [ "$hsif_pnetid" != "" ] && [ "$netif_pnetid" != "" ] && [ "$netif_pnetid" == "$hsif_pnetid" ]; then
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hsci_pnetid=$hsif_pnetid
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fi
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}
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function verify_precon {
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echo "Verifying net dev $ndev and HiperSockets dev $hsdev"
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if [ ! -e /sys/class/net/$hsdev ]; then
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echo "Error: $hsdev does not exist" >&2
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return 1
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fi
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if [ "$(cat /sys/class/net/$hsdev/device/card_type)" != "HiperSockets" ]; then
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echo "Error: $hsdev is not a HiperSockets device" >&2
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return 1
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fi
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if [ "$(cat /sys/class/net/$hsdev/device/layer2)" != "1" ]; then
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echo "Error: $hsdev is not in layer 2 mode" >&2
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return 1
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fi
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if [ ! -e /sys/class/net/$hsdev/device/vnicc/bridge_invisible ]; then
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echo "Error: Missing vnic-characteristics support" >&2
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return 1
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fi
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if [ "$(cat /sys/class/net/$hsdev/device/vnicc/bridge_invisible)" == "n/a" ]; then
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echo "Error: $hsdev does not support vnicc" >&2
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return 1
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fi
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if [ $(ip link show $hsdev | grep UP | wc -l) -eq 0 ]; then
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echo "Error: $hsdev is not in state UP" >&2
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return 1
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fi
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if [ $(bridge -d link show dev $hsdev self | grep learning_sync | wc -l) -eq 0 ]; then
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echo "Error: $hsdev does not support attribute learning_sync" >&2
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return 1
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fi
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if [ $(ip link show $hsdev | grep master | wc -l) -ne 0 ]; then
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echo "Error: $hsdev is already a bridge port" >&2
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return 1
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fi
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#Pre-verify net_dev
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if [ ! -e /sys/class/net/$ndev ]; then
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echo "Error: $ndev does not exist" >&2
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return 1
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fi
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if [ "$(cat /sys/class/net/$ndev/device/card_type)" == "HiperSockets" ]; then
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echo "Error: $ndev is also a HiperSockets device" >&2
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return 1
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fi
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if [ $(ip link show $ndev | grep UP | wc -l) -eq 0 ]; then
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echo "Error: $ndev is not in state UP" >&2
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return 1
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fi
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if [ $(ip link show $ndev | grep master | wc -l) -ne 0 ]; then
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echo "Error: $ndev is already a bridge port" >&2
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return 1
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fi
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#Check PNETIDs
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check_pnetids
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if [ $? -ne 0 ]; then
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return $?
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fi
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return 0
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}
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function clean_up {
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bridge link set dev $hsdev learning_sync off self >/dev/null 2>&1
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echo 0 > /sys/class/net/$hsdev/device/vnicc/bridge_invisible >/dev/null 2>&1
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bridge fdb del $hsdev_mac dev $ndev >/dev/null 2>&1
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ip link del $hsci >/dev/null 2>&1
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}
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##############################################################################
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## add a new HSCI interface
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##############################################################################
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function add_hsci {
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if [ $# != 2 ]; then
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echo "hsci: Invalid parameters" >&2
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echo "Use 'hsci --help' for more information" >&2
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return 1
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fi
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hsdev=$1
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ndev=$2
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#### Verify preconditions
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verify_precon
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if [ $? -ne 0 ]; then
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return $?
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fi
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hsci_postfix="$(readlink /sys/class/net/$hsdev/device/cdev0 | tail -c5)"
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hsci=hsci$hsci_postfix
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echo "Adding $hsci with a HiperSockets dev $hsdev and an external dev $ndev"
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#### Create bridge
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ip link add name $hsci type bridge stp_state 0 >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Could not create a bridge" >&2
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return 1
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fi
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#### Prepare hsdev
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# Set VNICC of hsdev to invisible
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#(mandatory for co-existence with HS-OSA bridges!)
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echo 1 > /sys/class/net/$hsdev/device/vnicc/bridge_invisible
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#### Create bridge ports
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ip link set dev $ndev master $hsci >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Could not set master for $ndev" >&2
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clean_up
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return 1
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fi
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ip link set dev $hsdev master $hsci >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Could not set master for $hsdev" >&2
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clean_up
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return 1
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fi
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# no forwarding between ndev and hsdev -> isolated on
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# ndev is default for outgoing unknown targets -> flood on
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# no need to learn external LAN targets into fdb -> learning off
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bridge link set dev $ndev isolated on learning off flood on mcast_flood on >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Failed to set bridge attributes on $ndev" >&2
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clean_up
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return 1
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fi
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# no forwarding between ndev and hsdev -> isolated on
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# fdb will be populated by dev-to-bridge-notification, no need to learn
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# -> learning off
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# only send to hsdev, if listed in fdb -> flood off
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# don't send MC/BC on hsdev -> mcast_flood off
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bridge link set dev $hsdev isolated on learning off flood off mcast_flood off >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Failed to set bridge attributes on $hsdev" >&2
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clean_up
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return 1
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fi
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# NOTE: Although not required, BCs will be sent out on hsdev.
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# NOTE: We need to receive BCs on hsdev, as z/OS HSCI does ARP requests on HS.
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hsdev_mac="$(cat /sys/class/net/$hsdev/address)"
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echo "Set $hsdev MAC $hsdev_mac on $ndev and $hsci"
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# set HS MAC on OSA as secondary MAC
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bridge fdb add $hsdev_mac dev $ndev >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Failed to set HS MAC on OSA as secondary MAC" >&2
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clean_up
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return 1
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fi
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# set HS MAC (common MAC) on HSCI as primary MAC
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ip link set address $hsdev_mac dev $hsci >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Failed to set HiperSockets MAC (common MAC) on HSCI as primary MAC" >&2
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clean_up
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return 1
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fi
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# use hsdev MTU
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if [ -e /sys/class/net/$hsdev/mtu ]; then
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hs_mtu="$(cat /sys/class/net/$hsdev/mtu)"
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ip link set dev $hsci mtu $hs_mtu >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Failed to set MTU for $hsci " >&2
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clean_up
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return 1
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fi
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fi
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ip link set dev $hsci up >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Failed to set $hsci up" >&2
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clean_up
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return 1
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fi
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# Turn on device for bridge notification
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bridge link set dev $hsdev learning_sync on self >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Failed to turn on device for bridge notification" >&2
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clean_up
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return 1
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fi
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echo "Successfully added HSCI interface $hsci"
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return 0
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}
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##############################################################################
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## Delete HSCI
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##############################################################################
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function del_hsci {
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if [ $# != 1 ]; then
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echo "hsci: invalid parameters" >&2
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echo "Use 'hsci --help' for more information" >&2
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return 1
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fi
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hsci=$1
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if [ $(ip link show dev $hsci | wc -l) -eq 0 ]; then
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echo "Error: $hsci does not exit" >&2
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return 1
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fi
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if [ $(ip link show | grep "master $hsci" | wc -l) -eq 0 ]; then
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echo "Error: $hsci is not an active HSCI interface" >&2
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return 1
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fi
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bports="$(ip link show | grep "master $hsci" | awk '{print $2}')"
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for bport in $bports; do
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if [ $(bridge -d link show dev $bport | grep "learning_sync on" | wc -l) -ne 0 ]; then
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hsdev=${bport%:}
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else
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ndev=${bport%:}
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fi
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done
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if [ "$hsdev" == "" ]; then
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echo "Error: $hsci has no active HiperSockets port" >&2
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return 1
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fi
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echo "Deleting HSCI interface $hsci with the HiperSockets $hsdev and the external $ndev"
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bridge link set dev $hsdev learning_sync off self >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Failed to turn off learning_sync on $hsdev" >&2
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return 1
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fi
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echo 0 > /sys/class/net/$hsdev/device/vnicc/bridge_invisible
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hsdev_mac="$(cat /sys/class/net/$hsdev/address)"
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echo "Deleting $hsev MAC $hsdev_mac on $ndev"
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bridge fdb del $hsdev_mac dev $ndev >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Failed to delete $hsev MAC $hsdev_mac on $ndev" >&2
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return 1
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fi
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ip link del $hsci >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: Failed to delete $hsci" >&2
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return 1
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fi
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echo "Successfully deleted device $hsci"
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return 0
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}
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##############################################################################
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## Show HSCI
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##############################################################################
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function list_active {
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hsdev=$1
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local ext=""
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hsci="$(ip link show dev $hsdev | awk '{for(x=1;x<NF;x++) if($x~/master/) print $(x+1)}')"
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ext="$(ip link show | grep "master $hsci" | grep --invert-match $hsdev | awk '{print $2}')"
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# remove trailing ':'
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ndev="${ext%:}"
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check_pnetids
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printf '%-8s %-16s %-15s %-15s\n' "$hsci" "$hsci_pnetid" "$hsdev" "$ndev"
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return 0
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}
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function print_header {
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if [ $header -eq 0 ]; then
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echo "HSCI PNET_ID HiperSockets External "
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echo "------------------------------------------------------------"
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fi
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}
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function list_one {
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local hsnetdev=$1
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if [ $(bridge -d link show dev $hsnetdev | grep "learning_sync on" | wc -l) -ne 0 ]; then
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print_header
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list_active $hsnetdev
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fi
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return 0
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}
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function show_hsci {
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if [ $# != 0 ]; then
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echo "hsci: invalid parameters" >&2
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echo "Use 'hsci --help' for more information" >&2
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return 1
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fi
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header=0
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for hs_net_dev in $(ls -1 /sys/class/net/); do
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list_one $hs_net_dev
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done
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return 0
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}
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#==============================================================================
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function print_version()
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{
|
||||
echo "hsci utility: version %S390_TOOLS_VERSION%"
|
||||
echo "Copyright IBM Corp. 2020"
|
||||
}
|
||||
|
||||
##############################################################################
|
||||
##### Main
|
||||
##############################################################################
|
||||
prereqs_check
|
||||
|
||||
args="$(getopt -u -o hv -l help,version -- $*)"
|
||||
[ $? -ne 0 ] && exit 2
|
||||
set -- $args
|
||||
while true; do
|
||||
case $1 in
|
||||
-v | --version)
|
||||
print_version
|
||||
exit 0
|
||||
;;
|
||||
-h | --help)
|
||||
usage
|
||||
exit 0
|
||||
;;
|
||||
--)
|
||||
;;
|
||||
add) shift
|
||||
add_hsci "$@"
|
||||
exit $?
|
||||
;;
|
||||
del) shift
|
||||
del_hsci "$@"
|
||||
exit $?
|
||||
;;
|
||||
show) shift
|
||||
show_hsci "$@"
|
||||
exit $?
|
||||
;;
|
||||
*) echo "hsci: Please specify a valid command or option" >&2
|
||||
echo "Use 'hsci --help' for more information" >&2
|
||||
exit 1
|
||||
esac
|
||||
shift
|
||||
done
|
||||
|
||||
100
hsci/hsci.8
Normal file
100
hsci/hsci.8
Normal file
@@ -0,0 +1,100 @@
|
||||
.\" Copyright IBM Corp. 2020
|
||||
|
||||
.TH HSCI 8 "November 2020" "s390-tools" "Linux Programmer's Manual"
|
||||
|
||||
|
||||
.SH NAME
|
||||
.B hsci
|
||||
\- control and show HSCI settings.
|
||||
|
||||
|
||||
.SH SYNOPSIS
|
||||
.B hsci add
|
||||
.I HSDEV
|
||||
.I NETDEV
|
||||
.br
|
||||
.B hsci del
|
||||
.I HSCINAME
|
||||
.br
|
||||
.B hsci show
|
||||
.br
|
||||
.B hsci [\-hv]
|
||||
|
||||
.SH DESCRIPTION
|
||||
.BI hsci
|
||||
is used to control and show HSCI (HiperSockets Converged Interfaces) settings. A HiperSockets interface and an external network interface are converged into an HSCI interface.
|
||||
|
||||
.SH COMMANDS
|
||||
.TP
|
||||
.B add \fIHSDEV\fR \fINETDEV\fR
|
||||
.RS .4i
|
||||
.PP
|
||||
Adds an HSCI interface
|
||||
.PP
|
||||
.I HSDEV
|
||||
is the interface name of the HiperSockets device to be converged into the HSCI interface.
|
||||
.PP
|
||||
.I NETDEV
|
||||
is the interface name of the external network device to be converged into the HSCI interface.
|
||||
.RE
|
||||
|
||||
.TP
|
||||
.B del \fIHSCINAME\fR
|
||||
.RS .4i
|
||||
.PP
|
||||
Deletes an HSCI interface
|
||||
.PP
|
||||
.I HSCINAME
|
||||
is the name of the HSCI interface for the HiperSockets device and the external network device.
|
||||
.RE
|
||||
|
||||
.TP
|
||||
.B show
|
||||
.RS .4i
|
||||
.PP
|
||||
Lists the configured HSCI interfaces.
|
||||
.RE
|
||||
|
||||
.SH OPTIONS
|
||||
.TP
|
||||
.BR \-v ", " \-\-version
|
||||
Prints the version number of hsci and exits.
|
||||
.TP
|
||||
.BR \-h ", " \-\-help
|
||||
Displays the help information for the command.
|
||||
|
||||
.SH EXIT CODES
|
||||
.TP
|
||||
.BR "0"
|
||||
The hsci command ran successfully.
|
||||
|
||||
.TP
|
||||
.BR "1"
|
||||
An error occurred.
|
||||
|
||||
.SH EXAMPLE
|
||||
.BR "hsci show"
|
||||
.TP
|
||||
.RB
|
||||
Lists the configured HSCI interfaces:
|
||||
.RS 1.2i
|
||||
|
||||
HSCI PNET_ID HiperSockets External
|
||||
.br
|
||||
-----------------------------------------
|
||||
.br
|
||||
hsci8410 NET1 enc8410 encb040
|
||||
|
||||
.RE
|
||||
|
||||
.SH SEE ALSO
|
||||
.nf
|
||||
ip(8), bridge(8)
|
||||
.fi
|
||||
|
||||
.SH AUTHOR
|
||||
.nf
|
||||
Written by Alexandra Winter <wintera@linux.ibm.com>
|
||||
Wenjia Zhang <wenjia@linux.ibm.com>
|
||||
.fi
|
||||
|
||||
Reference in New Issue
Block a user