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 at gmail.com>
> Signed-off-by: Jingjing Wu <jingjing.wu at 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 at intel.com>
