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| author | Moses Reuben <mosesr@mellanox.com> | 2017-01-18 14:59:50 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-02-14 10:21:01 -0500 |
| commit | 2ac693f9953a2787f942abcbea5d1dc22a310932 (patch) | |
| tree | 0a282913d5af4fb159bc124c1f32f326121a2f31 /drivers/infiniband | |
| parent | 94e03f11ad1f8c947b69fa187412ff04783b2a96 (diff) | |
| download | linux-2ac693f9953a2787f942abcbea5d1dc22a310932.tar.gz linux-2ac693f9953a2787f942abcbea5d1dc22a310932.tar.bz2 linux-2ac693f9953a2787f942abcbea5d1dc22a310932.zip | |
IB/mlx5: Add flow tag support
Set flow tag in flow table entry, when IB_FLOW_SPEC_ACTION_TAG
is part of the flow specifications.
Flow tag doesn't support multicast flows, so it's passing to
hardware only when used.
Signed-off-by: Moses Reuben <mosesr@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index fc02f5f05b38..2e85f73c3235 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1669,6 +1669,7 @@ static void set_tos(void *outer_c, void *outer_v, u8 mask, u8 val) #define LAST_IPV6_FIELD traffic_class #define LAST_TCP_UDP_FIELD src_port #define LAST_TUNNEL_FIELD tunnel_id +#define LAST_FLOW_TAG_FIELD tag_id /* Field is the last supported field */ #define FIELDS_NOT_SUPPORTED(filter, field)\ @@ -1679,7 +1680,7 @@ static void set_tos(void *outer_c, void *outer_v, u8 mask, u8 val) sizeof(filter.field)) static int parse_flow_attr(u32 *match_c, u32 *match_v, - const union ib_flow_spec *ib_spec) + const union ib_flow_spec *ib_spec, u32 *tag_id) { void *misc_params_c = MLX5_ADDR_OF(fte_match_param, match_c, misc_parameters); @@ -1871,6 +1872,15 @@ static int parse_flow_attr(u32 *match_c, u32 *match_v, MLX5_SET(fte_match_set_misc, misc_params_v, vxlan_vni, ntohl(ib_spec->tunnel.val.tunnel_id)); break; + case IB_FLOW_SPEC_ACTION_TAG: + if (FIELDS_NOT_SUPPORTED(ib_spec->flow_tag, + LAST_FLOW_TAG_FIELD)) + return -EOPNOTSUPP; + if (ib_spec->flow_tag.tag_id >= BIT(24)) + return -EINVAL; + + *tag_id = ib_spec->flow_tag.tag_id; + break; default: return -EINVAL; } @@ -2054,6 +2064,7 @@ static struct mlx5_ib_flow_handler *create_flow_rule(struct mlx5_ib_dev *dev, struct mlx5_flow_spec *spec; const void *ib_flow = (const void *)flow_attr + sizeof(*flow_attr); unsigned int spec_index; + u32 flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; int err = 0; if (!is_valid_attr(flow_attr)) @@ -2070,7 +2081,7 @@ static struct mlx5_ib_flow_handler *create_flow_rule(struct mlx5_ib_dev *dev, for (spec_index = 0; spec_index < flow_attr->num_of_specs; spec_index++) { err = parse_flow_attr(spec->match_criteria, - spec->match_value, ib_flow); + spec->match_value, ib_flow, &flow_tag); if (err < 0) goto free; @@ -2080,7 +2091,16 @@ static struct mlx5_ib_flow_handler *create_flow_rule(struct mlx5_ib_dev *dev, spec->match_criteria_enable = get_match_criteria_enable(spec->match_criteria); flow_act.action = dst ? MLX5_FLOW_CONTEXT_ACTION_FWD_DEST : MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; - flow_act.flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; + + if (flow_tag != MLX5_FS_DEFAULT_FLOW_TAG && + (flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT || + flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT)) { + mlx5_ib_warn(dev, "Flow tag %u and attribute type %x isn't allowed in leftovers\n", + flow_tag, flow_attr->type); + err = -EINVAL; + goto free; + } + flow_act.flow_tag = flow_tag; handler->rule = mlx5_add_flow_rules(ft, spec, &flow_act, dst, 1); |