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net/mlx5: HWS, Fix IP version decision

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Unify the check for IP version when creating a definer. A given matcher
is deemed to match on IPv6 if any of the higher order (>31) bits of
source or destination address mask are set.

A single packet cannot mix IP versions between source and destination
addresses, so it makes no sense that they would be decided on
independently.

Signed-off-by: Vlad Dogaru <vdogaru@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20250422092540.182091-2-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Vlad Dogaru
2025-04-22 12:25:38 +03:00
committed by Jakub Kicinski
parent b5cdb9b311
commit 5f2f8d8b68
1 changed files with 16 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/net/ethernet/mellanox/mlx5/core/steering/hws/definer.c
View File

@@ -509,9 +509,9 @@ static int
hws_definer_conv_outer(struct mlx5hws_definer_conv_data *cd,
u32 *match_param)
{
bool is_s_ipv6, is_d_ipv6, smac_set, dmac_set;
struct mlx5hws_definer_fc *fc = cd->fc;
struct mlx5hws_definer_fc *curr_fc;
bool is_ipv6, smac_set, dmac_set;
u32 *s_ipv6, *d_ipv6;
if (HWS_IS_FLD_SET_SZ(match_param, outer_headers.l4_type, 0x2) ||
@@ -570,10 +570,10 @@ hws_definer_conv_outer(struct mlx5hws_definer_conv_data *cd,
outer_headers.dst_ipv4_dst_ipv6.ipv6_layout);
/* Assume IPv6 is used if ipv6 bits are set */
is_s_ipv6 = s_ipv6[0] || s_ipv6[1] || s_ipv6[2];
is_d_ipv6 = d_ipv6[0] || d_ipv6[1] || d_ipv6[2];
is_ipv6 = s_ipv6[0] || s_ipv6[1] || s_ipv6[2] ||
d_ipv6[0] || d_ipv6[1] || d_ipv6[2];
if (is_s_ipv6) {
if (is_ipv6) {
/* Handle IPv6 source address */
HWS_SET_HDR(fc, match_param, IPV6_SRC_127_96_O,
outer_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_127_96,
@@ -587,13 +587,6 @@ hws_definer_conv_outer(struct mlx5hws_definer_conv_data *cd,
HWS_SET_HDR(fc, match_param, IPV6_SRC_31_0_O,
outer_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0,
ipv6_src_outer.ipv6_address_31_0);
} else {
/* Handle IPv4 source address */
HWS_SET_HDR(fc, match_param, IPV4_SRC_O,
outer_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0,
ipv4_src_dest_outer.source_address);
}
if (is_d_ipv6) {
/* Handle IPv6 destination address */
HWS_SET_HDR(fc, match_param, IPV6_DST_127_96_O,
outer_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_127_96,
@@ -608,6 +601,10 @@ hws_definer_conv_outer(struct mlx5hws_definer_conv_data *cd,
outer_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_31_0,
ipv6_dst_outer.ipv6_address_31_0);
} else {
/* Handle IPv4 source address */
HWS_SET_HDR(fc, match_param, IPV4_SRC_O,
outer_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0,
ipv4_src_dest_outer.source_address);
/* Handle IPv4 destination address */
HWS_SET_HDR(fc, match_param, IPV4_DST_O,
outer_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_31_0,
@@ -665,9 +662,9 @@ static int
hws_definer_conv_inner(struct mlx5hws_definer_conv_data *cd,
u32 *match_param)
{
bool is_s_ipv6, is_d_ipv6, smac_set, dmac_set;
struct mlx5hws_definer_fc *fc = cd->fc;
struct mlx5hws_definer_fc *curr_fc;
bool is_ipv6, smac_set, dmac_set;
u32 *s_ipv6, *d_ipv6;
if (HWS_IS_FLD_SET_SZ(match_param, inner_headers.l4_type, 0x2) ||
@@ -728,10 +725,10 @@ hws_definer_conv_inner(struct mlx5hws_definer_conv_data *cd,
inner_headers.dst_ipv4_dst_ipv6.ipv6_layout);
/* Assume IPv6 is used if ipv6 bits are set */
is_s_ipv6 = s_ipv6[0] || s_ipv6[1] || s_ipv6[2];
is_d_ipv6 = d_ipv6[0] || d_ipv6[1] || d_ipv6[2];
is_ipv6 = s_ipv6[0] || s_ipv6[1] || s_ipv6[2] ||
d_ipv6[0] || d_ipv6[1] || d_ipv6[2];
if (is_s_ipv6) {
if (is_ipv6) {
/* Handle IPv6 source address */
HWS_SET_HDR(fc, match_param, IPV6_SRC_127_96_I,
inner_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_127_96,
@@ -745,13 +742,6 @@ hws_definer_conv_inner(struct mlx5hws_definer_conv_data *cd,
HWS_SET_HDR(fc, match_param, IPV6_SRC_31_0_I,
inner_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0,
ipv6_src_inner.ipv6_address_31_0);
} else {
/* Handle IPv4 source address */
HWS_SET_HDR(fc, match_param, IPV4_SRC_I,
inner_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0,
ipv4_src_dest_inner.source_address);
}
if (is_d_ipv6) {
/* Handle IPv6 destination address */
HWS_SET_HDR(fc, match_param, IPV6_DST_127_96_I,
inner_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_127_96,
@@ -766,6 +756,10 @@ hws_definer_conv_inner(struct mlx5hws_definer_conv_data *cd,
inner_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_31_0,
ipv6_dst_inner.ipv6_address_31_0);
} else {
/* Handle IPv4 source address */
HWS_SET_HDR(fc, match_param, IPV4_SRC_I,
inner_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0,
ipv4_src_dest_inner.source_address);
/* Handle IPv4 destination address */
HWS_SET_HDR(fc, match_param, IPV4_DST_I,
inner_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_31_0,