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IB/mlx5: Add support of more IPv6 fields to flow steering 

Add support to receive Traffic Class, specific IPv6 protocol
or IPv6 flow label.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Maor Gottlieb 2016-08-30 16:58:36 +03:00 committed by Doug Ledford
parent ca0d475385
commit 466fa6d2e3
1 changed files with 46 additions and 12 deletions
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58
drivers/infiniband/hw/mlx5/main.c
View File

@ -1425,15 +1425,31 @@ static int mlx5_ib_dealloc_pd(struct ib_pd *pd)
return 0;
}
static bool outer_header_zero(u32 *match_criteria)
{
int size = MLX5_ST_SZ_BYTES(fte_match_param);
char *outer_headers_c = MLX5_ADDR_OF(fte_match_param, match_criteria,
outer_headers);
enum {
MATCH_CRITERIA_ENABLE_OUTER_BIT,
MATCH_CRITERIA_ENABLE_MISC_BIT,
MATCH_CRITERIA_ENABLE_INNER_BIT
};
return outer_headers_c[0] == 0 && !memcmp(outer_headers_c,
outer_headers_c + 1,
size - 1);
#define HEADER_IS_ZERO(match_criteria, headers) \
!(memchr_inv(MLX5_ADDR_OF(fte_match_param, match_criteria, headers), \
0, MLX5_FLD_SZ_BYTES(fte_match_param, headers))) \
static u8 get_match_criteria_enable(u32 *match_criteria)
{
u8 match_criteria_enable;
match_criteria_enable =
(!HEADER_IS_ZERO(match_criteria, outer_headers)) <<
MATCH_CRITERIA_ENABLE_OUTER_BIT;
match_criteria_enable |=
(!HEADER_IS_ZERO(match_criteria, misc_parameters)) <<
MATCH_CRITERIA_ENABLE_MISC_BIT;
match_criteria_enable |=
(!HEADER_IS_ZERO(match_criteria, inner_headers)) <<
MATCH_CRITERIA_ENABLE_INNER_BIT;
return match_criteria_enable;
}
static void set_proto(void *outer_c, void *outer_v, u8 mask, u8 val)
@ -1453,7 +1469,7 @@ static void set_tos(void *outer_c, void *outer_v, u8 mask, u8 val)
#define LAST_ETH_FIELD vlan_tag
#define LAST_IB_FIELD sl
#define LAST_IPV4_FIELD tos
#define LAST_IPV6_FIELD dst_ip
#define LAST_IPV6_FIELD traffic_class
#define LAST_TCP_UDP_FIELD src_port
/* Field is the last supported field */
@ -1471,6 +1487,11 @@ static int parse_flow_attr(u32 *match_c, u32 *match_v,
outer_headers);
void *outer_headers_v = MLX5_ADDR_OF(fte_match_param, match_v,
outer_headers);
void *misc_params_c = MLX5_ADDR_OF(fte_match_param, match_c,
misc_parameters);
void *misc_params_v = MLX5_ADDR_OF(fte_match_param, match_v,
misc_parameters);
switch (ib_spec->type) {
case IB_FLOW_SPEC_ETH:
if (FIELDS_NOT_SUPPORTED(ib_spec->eth.mask, LAST_ETH_FIELD))
@ -1570,6 +1591,21 @@ static int parse_flow_attr(u32 *match_c, u32 *match_v,
dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
&ib_spec->ipv6.val.dst_ip,
sizeof(ib_spec->ipv6.val.dst_ip));
set_tos(outer_headers_c, outer_headers_v,
ib_spec->ipv6.mask.traffic_class,
ib_spec->ipv6.val.traffic_class);
set_proto(outer_headers_c, outer_headers_v,
ib_spec->ipv6.mask.next_hdr,
ib_spec->ipv6.val.next_hdr);
MLX5_SET(fte_match_set_misc, misc_params_c,
outer_ipv6_flow_label,
ntohl(ib_spec->ipv6.mask.flow_label));
MLX5_SET(fte_match_set_misc, misc_params_v,
outer_ipv6_flow_label,
ntohl(ib_spec->ipv6.val.flow_label));
break;
case IB_FLOW_SPEC_TCP:
if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask,
@ -1817,9 +1853,7 @@ static struct mlx5_ib_flow_handler *create_flow_rule(struct mlx5_ib_dev *dev,
ib_flow += ((union ib_flow_spec *)ib_flow)->size;
}
/* Outer header support only */
spec->match_criteria_enable = (!outer_header_zero(spec->match_criteria))
<< 0;
spec->match_criteria_enable = get_match_criteria_enable(spec->match_criteria);
action = dst ? MLX5_FLOW_CONTEXT_ACTION_FWD_DEST :
MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO;
handler->rule = mlx5_add_flow_rule(ft, spec,