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path: root/drivers/infiniband/hw/mlx5/flow.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx5/flow.c')
-rw-r--r--drivers/infiniband/hw/mlx5/flow.c147
1 files changed, 92 insertions, 55 deletions
diff --git a/drivers/infiniband/hw/mlx5/flow.c b/drivers/infiniband/hw/mlx5/flow.c
index 3a0601c2052c..216a1108ad34 100644
--- a/drivers/infiniband/hw/mlx5/flow.c
+++ b/drivers/infiniband/hw/mlx5/flow.c
@@ -67,46 +67,41 @@ static const struct uverbs_attr_spec mlx5_ib_flow_type[] = {
},
};
-#define MLX5_IB_CREATE_FLOW_MAX_FLOW_ACTIONS 2
-static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)(
- struct uverbs_attr_bundle *attrs)
+static int get_dests(struct uverbs_attr_bundle *attrs,
+ struct mlx5_ib_flow_matcher *fs_matcher, int *dest_id,
+ int *dest_type, struct ib_qp **qp, u32 *flags)
{
- struct mlx5_flow_context flow_context = {.flow_tag = MLX5_FS_DEFAULT_FLOW_TAG};
- struct mlx5_ib_flow_handler *flow_handler;
- struct mlx5_ib_flow_matcher *fs_matcher;
- struct ib_uobject **arr_flow_actions;
- struct ib_uflow_resources *uflow_res;
- struct mlx5_flow_act flow_act = {};
- void *devx_obj;
- int dest_id, dest_type;
- void *cmd_in;
- int inlen;
bool dest_devx, dest_qp;
- struct ib_qp *qp = NULL;
- struct ib_uobject *uobj =
- uverbs_attr_get_uobject(attrs, MLX5_IB_ATTR_CREATE_FLOW_HANDLE);
- struct mlx5_ib_dev *dev = mlx5_udata_to_mdev(&attrs->driver_udata);
- int len, ret, i;
- u32 counter_id = 0;
- u32 *offset_attr;
- u32 offset = 0;
-
- if (!capable(CAP_NET_RAW))
- return -EPERM;
+ void *devx_obj;
+ int err;
- dest_devx =
- uverbs_attr_is_valid(attrs, MLX5_IB_ATTR_CREATE_FLOW_DEST_DEVX);
+ dest_devx = uverbs_attr_is_valid(attrs,
+ MLX5_IB_ATTR_CREATE_FLOW_DEST_DEVX);
dest_qp = uverbs_attr_is_valid(attrs,
MLX5_IB_ATTR_CREATE_FLOW_DEST_QP);
- fs_matcher = uverbs_attr_get_obj(attrs,
- MLX5_IB_ATTR_CREATE_FLOW_MATCHER);
- if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_BYPASS &&
- ((dest_devx && dest_qp) || (!dest_devx && !dest_qp)))
+ *flags = 0;
+ err = uverbs_get_flags32(flags, attrs, MLX5_IB_ATTR_CREATE_FLOW_FLAGS,
+ MLX5_IB_ATTR_CREATE_FLOW_FLAGS_DEFAULT_MISS |
+ MLX5_IB_ATTR_CREATE_FLOW_FLAGS_DROP);
+ if (err)
+ return err;
+
+ /* Both flags are not allowed */
+ if (*flags & MLX5_IB_ATTR_CREATE_FLOW_FLAGS_DEFAULT_MISS &&
+ *flags & MLX5_IB_ATTR_CREATE_FLOW_FLAGS_DROP)
return -EINVAL;
- /* Allow only DEVX object as dest when inserting to FDB */
- if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_FDB && !dest_devx)
+ if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_BYPASS) {
+ if (dest_devx && (dest_qp || *flags))
+ return -EINVAL;
+ else if (dest_qp && *flags)
+ return -EINVAL;
+ }
+
+ /* Allow only DEVX object, drop as dest for FDB */
+ if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_FDB && !(dest_devx ||
+ (*flags & MLX5_IB_ATTR_CREATE_FLOW_FLAGS_DROP)))
return -EINVAL;
/* Allow only DEVX object or QP as dest when inserting to RDMA_RX */
@@ -114,43 +109,86 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)(
((!dest_devx && !dest_qp) || (dest_devx && dest_qp)))
return -EINVAL;
+ *qp = NULL;
if (dest_devx) {
- devx_obj = uverbs_attr_get_obj(
- attrs, MLX5_IB_ATTR_CREATE_FLOW_DEST_DEVX);
- if (IS_ERR(devx_obj))
- return PTR_ERR(devx_obj);
+ devx_obj =
+ uverbs_attr_get_obj(attrs,
+ MLX5_IB_ATTR_CREATE_FLOW_DEST_DEVX);
/* Verify that the given DEVX object is a flow
* steering destination.
*/
- if (!mlx5_ib_devx_is_flow_dest(devx_obj, &dest_id, &dest_type))
+ if (!mlx5_ib_devx_is_flow_dest(devx_obj, dest_id, dest_type))
return -EINVAL;
/* Allow only flow table as dest when inserting to FDB or RDMA_RX */
if ((fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_FDB ||
fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_RDMA_RX) &&
- dest_type != MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE)
+ *dest_type != MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE)
return -EINVAL;
} else if (dest_qp) {
struct mlx5_ib_qp *mqp;
- qp = uverbs_attr_get_obj(attrs,
- MLX5_IB_ATTR_CREATE_FLOW_DEST_QP);
- if (IS_ERR(qp))
- return PTR_ERR(qp);
+ *qp = uverbs_attr_get_obj(attrs,
+ MLX5_IB_ATTR_CREATE_FLOW_DEST_QP);
+ if (IS_ERR(*qp))
+ return PTR_ERR(*qp);
- if (qp->qp_type != IB_QPT_RAW_PACKET)
+ if ((*qp)->qp_type != IB_QPT_RAW_PACKET)
return -EINVAL;
- mqp = to_mqp(qp);
- if (mqp->flags & MLX5_IB_QP_RSS)
- dest_id = mqp->rss_qp.tirn;
+ mqp = to_mqp(*qp);
+ if (mqp->is_rss)
+ *dest_id = mqp->rss_qp.tirn;
else
- dest_id = mqp->raw_packet_qp.rq.tirn;
- dest_type = MLX5_FLOW_DESTINATION_TYPE_TIR;
- } else {
- dest_type = MLX5_FLOW_DESTINATION_TYPE_PORT;
+ *dest_id = mqp->raw_packet_qp.rq.tirn;
+ *dest_type = MLX5_FLOW_DESTINATION_TYPE_TIR;
+ } else if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_EGRESS) {
+ *dest_type = MLX5_FLOW_DESTINATION_TYPE_PORT;
}
+ if (*dest_type == MLX5_FLOW_DESTINATION_TYPE_TIR &&
+ fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_EGRESS)
+ return -EINVAL;
+
+ return 0;
+}
+
+#define MLX5_IB_CREATE_FLOW_MAX_FLOW_ACTIONS 2
+static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)(
+ struct uverbs_attr_bundle *attrs)
+{
+ struct mlx5_flow_context flow_context = {.flow_tag =
+ MLX5_FS_DEFAULT_FLOW_TAG};
+ u32 *offset_attr, offset = 0, counter_id = 0;
+ int dest_id, dest_type, inlen, len, ret, i;
+ struct mlx5_ib_flow_handler *flow_handler;
+ struct mlx5_ib_flow_matcher *fs_matcher;
+ struct ib_uobject **arr_flow_actions;
+ struct ib_uflow_resources *uflow_res;
+ struct mlx5_flow_act flow_act = {};
+ struct ib_qp *qp = NULL;
+ void *devx_obj, *cmd_in;
+ struct ib_uobject *uobj;
+ struct mlx5_ib_dev *dev;
+ u32 flags;
+
+ if (!capable(CAP_NET_RAW))
+ return -EPERM;
+
+ fs_matcher = uverbs_attr_get_obj(attrs,
+ MLX5_IB_ATTR_CREATE_FLOW_MATCHER);
+ uobj = uverbs_attr_get_uobject(attrs, MLX5_IB_ATTR_CREATE_FLOW_HANDLE);
+ dev = mlx5_udata_to_mdev(&attrs->driver_udata);
+
+ if (get_dests(attrs, fs_matcher, &dest_id, &dest_type, &qp, &flags))
+ return -EINVAL;
+
+ if (flags & MLX5_IB_ATTR_CREATE_FLOW_FLAGS_DEFAULT_MISS)
+ flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS;
+
+ if (flags & MLX5_IB_ATTR_CREATE_FLOW_FLAGS_DROP)
+ flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_DROP;
+
len = uverbs_attr_get_uobjs_arr(attrs,
MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX, &arr_flow_actions);
if (len) {
@@ -180,10 +218,6 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)(
flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
}
- if (dest_type == MLX5_FLOW_DESTINATION_TYPE_TIR &&
- fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_EGRESS)
- return -EINVAL;
-
cmd_in = uverbs_attr_get_alloced_ptr(
attrs, MLX5_IB_ATTR_CREATE_FLOW_MATCH_VALUE);
inlen = uverbs_attr_get_len(attrs,
@@ -629,7 +663,10 @@ DECLARE_UVERBS_NAMED_METHOD(
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET,
UVERBS_ATTR_MIN_SIZE(sizeof(u32)),
UA_OPTIONAL,
- UA_ALLOC_AND_COPY));
+ UA_ALLOC_AND_COPY),
+ UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_CREATE_FLOW_FLAGS,
+ enum mlx5_ib_create_flow_flags,
+ UA_OPTIONAL));
DECLARE_UVERBS_NAMED_METHOD_DESTROY(
MLX5_IB_METHOD_DESTROY_FLOW,
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-20 06:54:24 +0000