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authorPrzemyslaw Patynowski <przemyslawx.patynowski@intel.com>2022-11-15 11:49:25 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-12-14 13:32:02 +0300
commita2506b19d7a33c0dc2686368876f1d563430421f (patch)
treee08597d581ac08b17bdbcab5b263508c5885bcda /drivers
parent8329b65e34ef01dfdbd0ba28fd55fd46d0241042 (diff)
downloadlinux-a2506b19d7a33c0dc2686368876f1d563430421f.tar.xz
i40e: Disallow ip4 and ip6 l4_4_bytes
[ Upstream commit d64aaf3f7869f915fd120763d75f11d6b116424d ] Return -EOPNOTSUPP, when user requests l4_4_bytes for raw IP4 or IP6 flow director filters. Flow director does not support filtering on l4 bytes for PCTYPEs used by IP4 and IP6 filters. Without this patch, user could create filters with l4_4_bytes fields, which did not do any filtering on L4, but only on L3 fields. Fixes: 36777d9fa24c ("i40e: check current configured input set when adding ntuple filters") Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com> Signed-off-by: Kamil Maziarz <kamil.maziarz@intel.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_ethtool.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 144c4824b5e8..520929f4d535 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -4234,11 +4234,7 @@ static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
return -EOPNOTSUPP;
/* First 4 bytes of L4 header */
- if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF))
- new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
- else if (!usr_ip4_spec->l4_4_bytes)
- new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
- else
+ if (usr_ip4_spec->l4_4_bytes)
return -EOPNOTSUPP;
/* Filtering on Type of Service is not supported. */