On Wednesday 24 October 2012 15:28:17 Cosmin Ratiu wrote:
> On Wednesday 24 October 2012 14:38:07 Cosmin Ratiu wrote:
> > Hello,
> >
> > ixgbe_dcb_config_82599 should leave the MRQC register alone if it's
> > already configured for 8 PGs with RSS.
> >
> > Without this patch, the following sequence of events happen that force
> > RSS to be deconfigured.
> > 1. the MRQC register is configured with IXGBE_MRQC_RTRSS8TCEN in
> > ixgbe_setup_mrqc
> > 2. ixgbe_dcb_config_82599 is called again from within ixgbe_dcbnl_set_all
> > (via ixgbe_dcb_hw_config_cee). The 'default' switch label is picked and
> > RSS gets deconfigured.
> >
> > Cosmin.
>
> I am putting the patch inline, it seems the mailman stripped it off.
And yet another attempt, this time copy pasted.
I am sorry for the spam, I don't do this very often and mailman seems to hate
me.
Cosmin.
ixgbe: allow RSS with 8 priority queues in DCB mode.
This is a bug in the driver, it disables RSS when 8 priority queues are
configured. Avoid that.
ixgbe_dcb_82599.c | 2 ++
1 file changed, 2 insertions(+)
Signed-off-by: Cosmin Ratiu <[email protected]>
--- ixgbe_dcb_82599.c
+++ ixgbe_dcb_82599.c
@@ -499,6 +499,8 @@
reg = (reg & ~IXGBE_MRQC_MRQE_MASK) |
IXGBE_MRQC_RTRSS8TCEN;
break;
+ case IXGBE_MRQC_RTRSS8TCEN:
+ break;
default:
/*
* Unsupported value, assume stale data,
------------------------------------------------------------------------------
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