[meta-freescale] meta-fsl-ppc: questioning reason to disable reverse path filtering...
yocto at mindchasers.com
Sat Nov 29 11:06:22 PST 2014
Reverse Path filtering (RPF) is disabled by
The git log states: "rp_filter causes issues with VLAN interfaces."
An email patch for procps from FSL back on 3/7/13 states:
"disable rp_filter to enhance ASF IP forward performance, which is
really fsl SDK specific."
Are both of these statements true?
If so, it looks like AS_FASTPATH is almost always disabled by default in
the powerpc defconfigs. Therefore, if reverse path filtering issues are
specific to AS_FASTPATH, I suggest RPF shouldn't be disabled by default.
Perhaps add a comment in the drivers/net/Kconfig help for AS_FASTPATH
that if AS_FASTPATH is enabled, then disable RPF.
Regardless, can we get a description added to this recipe append file to
document why it exists? And if there is no need to disable RPF in
default configurations, can we just get rid of it?
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