diff options
-rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 54 | ||||
-rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 2 | ||||
-rw-r--r-- | include/linux/mlx5/device.h | 7 |
3 files changed, 55 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 03c418c..5863644 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1369,11 +1369,20 @@ static int mlx5_ib_destroy_flow(struct ib_flow *flow_id) return 0; } +static int ib_prio_to_core_prio(unsigned int priority, bool dont_trap) +{ + priority *= 2; + if (!dont_trap) + priority++; + return priority; +} + #define MLX5_FS_MAX_TYPES 10 #define MLX5_FS_MAX_ENTRIES 32000UL static struct mlx5_ib_flow_prio *get_flow_table(struct mlx5_ib_dev *dev, struct ib_flow_attr *flow_attr) { + bool dont_trap = flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP; struct mlx5_flow_namespace *ns = NULL; struct mlx5_ib_flow_prio *prio; struct mlx5_flow_table *ft; @@ -1383,10 +1392,12 @@ static struct mlx5_ib_flow_prio *get_flow_table(struct mlx5_ib_dev *dev, int err = 0; if (flow_attr->type == IB_FLOW_ATTR_NORMAL) { - if (flow_is_multicast_only(flow_attr)) + if (flow_is_multicast_only(flow_attr) && + !dont_trap) priority = MLX5_IB_FLOW_MCAST_PRIO; else - priority = flow_attr->priority; + priority = ib_prio_to_core_prio(flow_attr->priority, + dont_trap); ns = mlx5_get_flow_namespace(dev->mdev, MLX5_FLOW_NAMESPACE_BYPASS); num_entries = MLX5_FS_MAX_ENTRIES; @@ -1434,6 +1445,7 @@ static struct mlx5_ib_flow_handler *create_flow_rule(struct mlx5_ib_dev *dev, unsigned int spec_index; u32 *match_c; u32 *match_v; + u32 action; int err = 0; if (!is_valid_attr(flow_attr)) @@ -1459,9 +1471,11 @@ static struct mlx5_ib_flow_handler *create_flow_rule(struct mlx5_ib_dev *dev, /* Outer header support only */ match_criteria_enable = (!outer_header_zero(match_c)) << 0; + action = dst ? MLX5_FLOW_CONTEXT_ACTION_FWD_DEST : + MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; handler->rule = mlx5_add_flow_rule(ft, match_criteria_enable, match_c, match_v, - MLX5_FLOW_CONTEXT_ACTION_FWD_DEST, + action, MLX5_FS_DEFAULT_FLOW_TAG, dst); @@ -1481,6 +1495,29 @@ free: return err ? ERR_PTR(err) : handler; } +static struct mlx5_ib_flow_handler *create_dont_trap_rule(struct mlx5_ib_dev *dev, + struct mlx5_ib_flow_prio *ft_prio, + struct ib_flow_attr *flow_attr, + struct mlx5_flow_destination *dst) +{ + struct mlx5_ib_flow_handler *handler_dst = NULL; + struct mlx5_ib_flow_handler *handler = NULL; + + handler = create_flow_rule(dev, ft_prio, flow_attr, NULL); + if (!IS_ERR(handler)) { + handler_dst = create_flow_rule(dev, ft_prio, + flow_attr, dst); + if (IS_ERR(handler_dst)) { + mlx5_del_flow_rule(handler->rule); + kfree(handler); + handler = handler_dst; + } else { + list_add(&handler_dst->list, &handler->list); + } + } + + return handler; +} enum { LEFTOVERS_MC, LEFTOVERS_UC, @@ -1558,7 +1595,7 @@ static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp, if (domain != IB_FLOW_DOMAIN_USER || flow_attr->port > MLX5_CAP_GEN(dev->mdev, num_ports) || - flow_attr->flags) + (flow_attr->flags & ~IB_FLOW_ATTR_FLAGS_DONT_TRAP)) return ERR_PTR(-EINVAL); dst = kzalloc(sizeof(*dst), GFP_KERNEL); @@ -1577,8 +1614,13 @@ static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp, dst->tir_num = to_mqp(qp)->raw_packet_qp.rq.tirn; if (flow_attr->type == IB_FLOW_ATTR_NORMAL) { - handler = create_flow_rule(dev, ft_prio, flow_attr, - dst); + if (flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) { + handler = create_dont_trap_rule(dev, ft_prio, + flow_attr, dst); + } else { + handler = create_flow_rule(dev, ft_prio, flow_attr, + dst); + } } else if (flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT || flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT) { handler = create_leftovers_rule(dev, ft_prio, flow_attr, diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index d2b9737..bd84b1f 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -126,7 +126,7 @@ struct mlx5_ib_pd { }; #define MLX5_IB_FLOW_MCAST_PRIO (MLX5_BY_PASS_NUM_PRIOS - 1) -#define MLX5_IB_FLOW_LAST_PRIO (MLX5_IB_FLOW_MCAST_PRIO - 1) +#define MLX5_IB_FLOW_LAST_PRIO (MLX5_BY_PASS_NUM_REGULAR_PRIOS - 1) #if (MLX5_IB_FLOW_LAST_PRIO <= 0) #error "Invalid number of bypass priorities" #endif diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index 987764a..2bf222e 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -1294,6 +1294,11 @@ static inline u16 mlx5_to_sw_pkey_sz(int pkey_sz) return MLX5_MIN_PKEY_TABLE_SIZE << pkey_sz; } -#define MLX5_BY_PASS_NUM_PRIOS 9 +#define MLX5_BY_PASS_NUM_REGULAR_PRIOS 8 +#define MLX5_BY_PASS_NUM_DONT_TRAP_PRIOS 8 +#define MLX5_BY_PASS_NUM_MULTICAST_PRIOS 1 +#define MLX5_BY_PASS_NUM_PRIOS (MLX5_BY_PASS_NUM_REGULAR_PRIOS +\ + MLX5_BY_PASS_NUM_DONT_TRAP_PRIOS +\ + MLX5_BY_PASS_NUM_MULTICAST_PRIOS) #endif /* MLX5_DEVICE_H */ |