[PATCH rdma-next 14/16] IB/mlx5: Pass mlx5_flow_act struct instead of multiple arguments

Yishai Hadas
2017-10-19T14:41:56Z

From: Boris Pismenny <borisp-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>

Group and pass all function arguments of parse_flow_attr call in one
common struct mlx5_flow_act.

This patch passes all the action arguments of parse_flow_attr in one common
struct mlx5_flow_act. It allows us to scale the number of actions without adding
new arguments to the function.

Signed-off-by: Matan Barak <matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Boris Pismenny <borisp-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Reviewed-by: Yishai Hadas <yishaih-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
drivers/infiniband/hw/mlx5/main.c | 20 ++++++++------------
1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index a5ff217..2b434db 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1952,7 +1952,7 @@ static void set_tos(void *outer_c, void *outer_v, u8 mask, u8 val)
#define IPV6_VERSION 6
static int parse_flow_attr(struct mlx5_core_dev *mdev, u32 *match_c,
u32 *match_v, const union ib_flow_spec *ib_spec,
- u32 *tag_id, bool *is_drop)
+ struct mlx5_flow_act *action)
{
void *misc_params_c = MLX5_ADDR_OF(fte_match_param, match_c,
misc_parameters);
@@ -2170,13 +2170,13 @@ static int parse_flow_attr(struct mlx5_core_dev *mdev, u32 *match_c,
if (ib_spec->flow_tag.tag_id >= BIT(24))
return -EINVAL;

- *tag_id = ib_spec->flow_tag.tag_id;
+ action->flow_tag = ib_spec->flow_tag.tag_id;
break;
case IB_FLOW_SPEC_ACTION_DROP:
if (FIELDS_NOT_SUPPORTED(ib_spec->drop,
LAST_DROP_FIELD))
return -EOPNOTSUPP;
- *is_drop = true;
+ action->action |= MLX5_FLOW_CONTEXT_ACTION_DROP;
break;
default:
return -EINVAL;
@@ -2429,13 +2429,11 @@ static struct mlx5_ib_flow_handler *_create_flow_rule(struct mlx5_ib_dev *dev,
{
struct mlx5_flow_table *ft = ft_prio->flow_table;
struct mlx5_ib_flow_handler *handler;
- struct mlx5_flow_act flow_act = {0};
+ struct mlx5_flow_act flow_act = {.flow_tag = MLX5_FS_DEFAULT_FLOW_TAG};
struct mlx5_flow_spec *spec;
struct mlx5_flow_destination *rule_dst = dst;
const void *ib_flow = (const void *)flow_attr + sizeof(*flow_attr);
unsigned int spec_index;
- u32 flow_tag = MLX5_FS_DEFAULT_FLOW_TAG;
- bool is_drop = false;
int err = 0;
int dest_num = 1;

@@ -2454,7 +2452,7 @@ 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(dev->mdev, spec->match_criteria,
spec->match_value,
- ib_flow, &flow_tag, &is_drop);
+ ib_flow, &flow_act);
if (err < 0)
goto free;

@@ -2465,8 +2463,7 @@ static struct mlx5_ib_flow_handler *_create_flow_rule(struct mlx5_ib_dev *dev,
set_underlay_qp(dev, spec, underlay_qpn);

spec->match_criteria_enable = get_match_criteria_enable(spec->match_criteria);
- if (is_drop) {
- flow_act.action = MLX5_FLOW_CONTEXT_ACTION_DROP;
+ if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_DROP) {
rule_dst = NULL;
dest_num = 0;
} else {
@@ -2474,15 +2471,14 @@ static struct mlx5_ib_flow_handler *_create_flow_rule(struct mlx5_ib_dev *dev,
MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO;
}

- if (flow_tag != MLX5_FS_DEFAULT_FLOW_TAG &&
+ if (flow_act.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);
+ flow_act.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,
rule_dst, dest_num);
--
1.8.3.1