path: root/Documentation/aoe
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authorEd L Cashin <ecashin@coraid.com>2005-04-29 10:24:03 -0400
committerGreg KH <gregkh@suse.de>2005-05-03 23:34:53 -0700
commit03c41c434775c52092d17a5031ad8ebaaf555bc4 (patch)
treea2f4e5f5fef46fac69b1e47e31ccbcf7d950b016 /Documentation/aoe
parent8800cea62025a5209d110c5fa5990429239d6eee (diff)
[PATCH] aoe: improve allowed interfaces configuration
improve allowed interfaces configuration Signed-off-by: Ed L. Cashin <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> diff -uprN a/Documentation/aoe/aoe.txt b/Documentation/aoe/aoe.txt
Diffstat (limited to 'Documentation/aoe')
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/aoe/aoe.txt b/Documentation/aoe/aoe.txt
index 43e50108d0e2..1212987a30fa 100644
--- a/Documentation/aoe/aoe.txt
+++ b/Documentation/aoe/aoe.txt
@@ -33,6 +33,9 @@ USING DEVICE NODES
"cat /dev/etherd/err" blocks, waiting for error diagnostic output,
like any retransmitted packets.
+ The /dev/etherd/interfaces special file is obsoleted by the
+ aoe_iflist boot option and module option (and its sysfs entry
+ described in the next section).
"echo eth2 eth4 > /dev/etherd/interfaces" tells the aoe driver to
limit ATA over Ethernet traffic to eth2 and eth4. AoE traffic from
untrusted networks should be ignored as a matter of security.
@@ -89,3 +92,23 @@ USING SYSFS
e4.7 eth1 up
e4.8 eth1 up
e4.9 eth1 up
+ Use /sys/module/aoe/parameters/aoe_iflist (or better, the driver
+ option discussed below) instead of /dev/etherd/interfaces to limit
+ AoE traffic to the network interfaces in the given
+ whitespace-separated list. Unlike the old character device, the
+ sysfs entry can be read from as well as written to.
+ It's helpful to trigger discovery after setting the list of allowed
+ interfaces. If your distro provides an aoe-discover script, you can
+ use that. Otherwise, you can directly use the /dev/etherd/discover
+ file described above.
+ There is a boot option for the built-in aoe driver and a
+ corresponding module parameter, aoe_iflist. Without this option,
+ all network interfaces may be used for ATA over Ethernet. Here is a
+ usage example for the module parameter.
+ modprobe aoe_iflist="eth1 eth3"

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