From 02b4016bfe43d2d5ed043be7ffa56cda6a4d1100 Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Wed, 27 Dec 2017 08:24:12 -0500 Subject: i40e: program fragmented IPv4 filter input set When implementing support for IP_USER_FLOW filters, we correctly programmed a filter for both the non fragmented IPv4/Other filter, as well as the fragmented IPv4 filters. However, we did not properly program the input set for fragmented IPv4 PCTYPE. This meant that the filters would almost certainly not match, unless the user specified all of the flow types. Add support to program the fragmented IPv4 filter input set. Since we always program these filters together, we'll assume that the two input sets must match, and will thus always program the input sets to the same value. Signed-off-by: Jacob Keller Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 10 ++++++++++ drivers/net/ethernet/intel/i40e/i40e_main.c | 3 +++ 2 files changed, 13 insertions(+) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c index 03f7007d025e..69644b621b45 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -3809,6 +3809,16 @@ static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, i40e_write_fd_input_set(pf, index, new_mask); + /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented + * frames. If we're programming the input set for IPv4/Other, we also + * need to program the IPv4/Fragmented input set. Since we don't have + * separate support, we'll always assume and enforce that the two flow + * types must have matching input sets. + */ + if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) + i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, + new_mask); + /* Add the new offset and update table, if necessary */ if (new_flex_offset) { err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index db611433120a..25087e21a051 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -7680,6 +7680,9 @@ static void i40e_fdir_filter_exit(struct i40e_pf *pf) /* Reprogram the default input set for Other/IPv4 */ i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_NONF_IPV4_OTHER, I40E_L3_SRC_MASK | I40E_L3_DST_MASK); + + i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, + I40E_L3_SRC_MASK | I40E_L3_DST_MASK); } /** -- cgit v1.2.3