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net/mlx5: Add a no-append flow insertion mode 

If no-append flag is set, we will add a new FTE, instead of appending
the actions of the inserted rule when the same match already exists.

While here, move the has_flow_tag boolean indicator to be a flag too.

This patch doesn't change any functionality.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanmox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Paul Blakey 2018-09-20 12:17:48 +02:00 committed by Saeed Mahameed
parent e52c280240
commit d5634fee24
5 changed files with 24 additions and 9 deletions
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6
drivers/infiniband/hw/mlx5/main.c
View File

@ -2793,7 +2793,7 @@ static int parse_flow_attr(struct mlx5_core_dev *mdev, u32 *match_c,
return -EINVAL;
action->flow_tag = ib_spec->flow_tag.tag_id;
action->has_flow_tag = true;
action->flags |= FLOW_ACT_HAS_TAG;
break;
case IB_FLOW_SPEC_ACTION_DROP:
if (FIELDS_NOT_SUPPORTED(ib_spec->drop,
@ -2886,7 +2886,7 @@ is_valid_esp_aes_gcm(struct mlx5_core_dev *mdev,
return egress ? VALID_SPEC_INVALID : VALID_SPEC_NA;
return is_crypto && is_ipsec &&
(!egress || (!is_drop && !flow_act->has_flow_tag)) ?
(!egress || (!is_drop && !(flow_act->flags & FLOW_ACT_HAS_TAG))) ?
VALID_SPEC_VALID : VALID_SPEC_INVALID;
}
@ -3349,7 +3349,7 @@ static struct mlx5_ib_flow_handler *_create_flow_rule(struct mlx5_ib_dev *dev,
MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO;
}
if (flow_act.has_flow_tag &&
if ((flow_act.flags & FLOW_ACT_HAS_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",

2
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
View File

@ -684,9 +684,9 @@ mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv,
struct mlx5_flow_destination dest[2] = {};
struct mlx5_flow_act flow_act = {
.action = attr->action,
.has_flow_tag = true,
.flow_tag = attr->flow_tag,
.reformat_id = 0,
.flags = FLOW_ACT_HAS_TAG,
};
struct mlx5_fc *counter = NULL;
bool table_created = false;

2
drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
View File

@ -650,7 +650,7 @@ static bool mlx5_is_fpga_egress_ipsec_rule(struct mlx5_core_dev *dev,
(match_criteria_enable &
~(MLX5_MATCH_OUTER_HEADERS | MLX5_MATCH_MISC_PARAMETERS)) ||
(flow_act->action & ~(MLX5_FLOW_CONTEXT_ACTION_ENCRYPT | MLX5_FLOW_CONTEXT_ACTION_ALLOW)) ||
flow_act->has_flow_tag)
(flow_act->flags & FLOW_ACT_HAS_TAG))
return false;
return true;

9
drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
View File

@ -1428,7 +1428,7 @@ static int check_conflicting_ftes(struct fs_fte *fte, const struct mlx5_flow_act
return -EEXIST;
}
if (flow_act->has_flow_tag &&
if ((flow_act->flags & FLOW_ACT_HAS_TAG) &&
fte->action.flow_tag != flow_act->flow_tag) {
mlx5_core_warn(get_dev(&fte->node),
"FTE flow tag %u already exists with different flow tag %u\n",
@ -1628,6 +1628,8 @@ try_add_to_existing_fg(struct mlx5_flow_table *ft,
search_again_locked:
version = matched_fgs_get_version(match_head);
if (flow_act->flags & FLOW_ACT_NO_APPEND)
goto skip_search;
/* Try to find a fg that already contains a matching fte */
list_for_each_entry(iter, match_head, list) {
struct fs_fte *fte_tmp;
@ -1644,6 +1646,11 @@ search_again_locked:
return rule;
}
skip_search:
/* No group with matching fte found, or we skipped the search.
* Try to add a new fte to any matching fg.
*/
/* Check the ft version, for case that new flow group
* was added while the fgs weren't locked
*/

14
include/linux/mlx5/fs.h
View File

@ -158,20 +158,28 @@ struct mlx5_fs_vlan {
#define MLX5_FS_VLAN_DEPTH 2
enum {
FLOW_ACT_HAS_TAG = BIT(0),
FLOW_ACT_NO_APPEND = BIT(1),
};
struct mlx5_flow_act {
u32 action;
bool has_flow_tag;
u32 flow_tag;
u32 reformat_id;
u32 modify_id;
uintptr_t esp_id;
u32 flags;
struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
struct ib_counters *counters;
};
#define MLX5_DECLARE_FLOW_ACT(name) \
struct mlx5_flow_act name = {MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
MLX5_FS_DEFAULT_FLOW_TAG, 0, 0}
struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
.flow_tag = MLX5_FS_DEFAULT_FLOW_TAG, \
.reformat_id = 0, \
.modify_id = 0, \
.flags = 0, }
/* Single destination per rule.
* Group ID is implied by the match criteria.