File 0048-Add-dcb-support-to-dracut-s-FCoE-support-rh563794.patch of Package dracut

From eeee01e5348aca74c8ba0bb29627534a504ab042 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 15 Mar 2010 11:21:29 +0100
Subject: [PATCH] Add dcb support to dracut's FCoE support (rh563794)

Note that there are still some patches queued upstream for fcoe-utils to
enable it to work with the new lldpad and to add support to fipvlan to
bring up FCoE connections without requiring fcoemon to run.

The invocations of the various tools as in this patch should be final though,
see the discussion in:
http://bugzilla.redhat.com/show_bug.cgi?id=563794

This is the second revision of this patch, which no longer adds /etc/fcoe
to the initrd as that is not needed.
---
 modules.d/95fcoe/fcoe-up       | 14 +++++++++++++-
 modules.d/95fcoe/install       |  5 ++++-
 modules.d/95fcoe/parse-fcoe.sh |  3 +--
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/modules.d/95fcoe/fcoe-up b/modules.d/95fcoe/fcoe-up
index 8a70a62..bd6294a 100755
--- a/modules.d/95fcoe/fcoe-up
+++ b/modules.d/95fcoe/fcoe-up
@@ -6,6 +6,8 @@
 # Note currently only nodcb is supported, the dcb option is reserved for
 # future use.
 
+PATH=$PATH:/sbin:/usr/sbin
+
 # Huh? Missing arguments ??
 [ -z "$1" -o -z "$2" ] && exit 1
 
@@ -13,4 +15,14 @@ netif=$1
 dcb=$2
 
 /sbin/ip link set "$netif" up
-echo -n "$netif" > /sys/module/fcoe/parameters/create
+if [ "$dcb" = "dcb" ]; then
+    # Note lldpad will stay running after switchroot, the system initscripts
+    # are to kill it and start a new lldpad to take over. Data is transfered
+    # between the 2 using a shm segment
+    lldpad -d
+    dcbtool sc "$netif" dcb on
+    dcbtool sc "$netif" app:fcoe e:1 a:1 w:1
+    fipvlan "$netif" -c -s
+else
+    echo -n "$netif" > /sys/module/fcoe/parameters/create
+fi
diff --git a/modules.d/95fcoe/install b/modules.d/95fcoe/install
index 0bd9ed4..71b3bd1 100755
--- a/modules.d/95fcoe/install
+++ b/modules.d/95fcoe/install
@@ -1,6 +1,9 @@
 #!/bin/bash
 
-dracut_install ip
+dracut_install ip dcbtool fipvlan
+
+inst lldpad
+mkdir -p "$initdir/var/lib/lldpad"
 
 inst "$moddir/fcoe-up" "/sbin/fcoe-up"
 inst_hook pre-udev 60 "$moddir/fcoe-genrules.sh"
diff --git a/modules.d/95fcoe/parse-fcoe.sh b/modules.d/95fcoe/parse-fcoe.sh
index b35680f..26a5a1a 100755
--- a/modules.d/95fcoe/parse-fcoe.sh
+++ b/modules.d/95fcoe/parse-fcoe.sh
@@ -39,8 +39,7 @@ parse_fcoe_opts() {
 
 parse_fcoe_opts
 
-# currently only nodcb is supported
-if [ "$fcoe_dcb" != "nodcb" ] ; then
+if [ "$fcoe_dcb" != "nodcb" -a "$fcoe_dcb" != "dcb" ] ; then
     die "Invalid FCoE DCB option: $fcoe_dcb"
 fi
 
-- 
1.8.3.1