Re: [dpdk-dev] [PATCH] i40e: fix flexible payload selection

[Bruce Richardson <bruce.richardson@intel.com>]

On Thu, Jun 02, 2016 at 03:30:57AM +0800, Zhe Tao wrote:
> On Thu, May 12, 2016 at 04:11:40PM +0800, Jingjing Wu wrote:
> > When setting up flexible payload selection rules, it is allowed
> > that setting value to 63 to disable the rule (NONUSE_FLX_PIT_DEST_OFF).
> > However, MK_FLX_PIT macro is always adding an offset value 50
> > (I40E_FLX_OFFSET_IN_FIELD_VECTOR), it will be set to "63 + 50" and
> > when setting NONUSE_FLX_PIT_DEST_OFF to disable it. It breaks
> > the functionality.
> > This patch fixes this issue.
> > 
> > Fixes: d8b90c4eabe9 ("i40e: take flow director flexible payload
> >                       configuration")
> > 
> > Reported-by: Michael Habibi <mikehabibi@gmail.com>
> > Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
> > ---
> >  drivers/net/i40e/i40e_fdir.c | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
> > index 8aa41e5..efbcd18 100644
> > --- a/drivers/net/i40e/i40e_fdir.c
> > +++ b/drivers/net/i40e/i40e_fdir.c
> > @@ -94,7 +94,9 @@
> >  		I40E_PRTQF_FLX_PIT_SOURCE_OFF_MASK) | \
> >  	(((fsize) << I40E_PRTQF_FLX_PIT_FSIZE_SHIFT) & \
> >  			I40E_PRTQF_FLX_PIT_FSIZE_MASK) | \
> > -	((((dst_offset) + I40E_FLX_OFFSET_IN_FIELD_VECTOR) << \
> > +	((((dst_offset) == NONUSE_FLX_PIT_DEST_OFF ? \
> > +			NONUSE_FLX_PIT_DEST_OFF : \
> > +			((dst_offset) + I40E_FLX_OFFSET_IN_FIELD_VECTOR)) << \
> >  			I40E_PRTQF_FLX_PIT_DEST_OFF_SHIFT) & \
> >  			I40E_PRTQF_FLX_PIT_DEST_OFF_MASK))
> >  
> > -- 
> > 2.4.0
> Acked-by: Zhe Tao <zhe.tao@intel.com>

Applied to dpdk-next-net/rel_16_07

/Bruce