From 03c41c434775c52092d17a5031ad8ebaaf555bc4 Mon Sep 17 00:00:00 2001 From: Ed L Cashin Date: Fri, 29 Apr 2005 10:24:03 -0400 Subject: [PATCH] aoe: improve allowed interfaces configuration improve allowed interfaces configuration Signed-off-by: Ed L. Cashin Signed-off-by: Greg Kroah-Hartman diff -uprN a/Documentation/aoe/aoe.txt b/Documentation/aoe/aoe.txt --- Documentation/aoe/aoe.txt | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'Documentation/aoe') 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. + +DRIVER OPTIONS + + 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" -- cgit