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-rw-r--r--drivers/infiniband/hw/mlx5/ib_rep.c194
1 files changed, 194 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/ib_rep.c b/drivers/infiniband/hw/mlx5/ib_rep.c
new file mode 100644
index 000000000..b841589c2
--- /dev/null
+++ b/drivers/infiniband/hw/mlx5/ib_rep.c
@@ -0,0 +1,194 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/*
+ * Copyright (c) 2018 Mellanox Technologies. All rights reserved.
+ */
+
+#include "ib_rep.h"
+
+static const struct mlx5_ib_profile rep_profile = {
+ STAGE_CREATE(MLX5_IB_STAGE_INIT,
+ mlx5_ib_stage_init_init,
+ mlx5_ib_stage_init_cleanup),
+ STAGE_CREATE(MLX5_IB_STAGE_FLOW_DB,
+ mlx5_ib_stage_rep_flow_db_init,
+ NULL),
+ STAGE_CREATE(MLX5_IB_STAGE_CAPS,
+ mlx5_ib_stage_caps_init,
+ NULL),
+ STAGE_CREATE(MLX5_IB_STAGE_NON_DEFAULT_CB,
+ mlx5_ib_stage_rep_non_default_cb,
+ NULL),
+ STAGE_CREATE(MLX5_IB_STAGE_ROCE,
+ mlx5_ib_stage_rep_roce_init,
+ mlx5_ib_stage_rep_roce_cleanup),
+ STAGE_CREATE(MLX5_IB_STAGE_DEVICE_RESOURCES,
+ mlx5_ib_stage_dev_res_init,
+ mlx5_ib_stage_dev_res_cleanup),
+ STAGE_CREATE(MLX5_IB_STAGE_COUNTERS,
+ mlx5_ib_stage_counters_init,
+ mlx5_ib_stage_counters_cleanup),
+ STAGE_CREATE(MLX5_IB_STAGE_BFREG,
+ mlx5_ib_stage_bfrag_init,
+ mlx5_ib_stage_bfrag_cleanup),
+ STAGE_CREATE(MLX5_IB_STAGE_PRE_IB_REG_UMR,
+ NULL,
+ mlx5_ib_stage_pre_ib_reg_umr_cleanup),
+ STAGE_CREATE(MLX5_IB_STAGE_IB_REG,
+ mlx5_ib_stage_ib_reg_init,
+ mlx5_ib_stage_ib_reg_cleanup),
+ STAGE_CREATE(MLX5_IB_STAGE_POST_IB_REG_UMR,
+ mlx5_ib_stage_post_ib_reg_umr_init,
+ NULL),
+ STAGE_CREATE(MLX5_IB_STAGE_CLASS_ATTR,
+ mlx5_ib_stage_class_attr_init,
+ NULL),
+};
+
+static int
+mlx5_ib_nic_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
+{
+ return 0;
+}
+
+static void
+mlx5_ib_nic_rep_unload(struct mlx5_eswitch_rep *rep)
+{
+ rep->rep_if[REP_IB].priv = NULL;
+}
+
+static int
+mlx5_ib_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
+{
+ struct mlx5_ib_dev *ibdev;
+
+ ibdev = (struct mlx5_ib_dev *)ib_alloc_device(sizeof(*ibdev));
+ if (!ibdev)
+ return -ENOMEM;
+
+ ibdev->rep = rep;
+ ibdev->mdev = dev;
+ ibdev->num_ports = max(MLX5_CAP_GEN(dev, num_ports),
+ MLX5_CAP_GEN(dev, num_vhca_ports));
+ if (!__mlx5_ib_add(ibdev, &rep_profile)) {
+ ib_dealloc_device(&ibdev->ib_dev);
+ return -EINVAL;
+ }
+
+ rep->rep_if[REP_IB].priv = ibdev;
+
+ return 0;
+}
+
+static void
+mlx5_ib_vport_rep_unload(struct mlx5_eswitch_rep *rep)
+{
+ struct mlx5_ib_dev *dev;
+
+ if (!rep->rep_if[REP_IB].priv)
+ return;
+
+ dev = mlx5_ib_rep_to_dev(rep);
+ __mlx5_ib_remove(dev, dev->profile, MLX5_IB_STAGE_MAX);
+ rep->rep_if[REP_IB].priv = NULL;
+}
+
+static void *mlx5_ib_vport_get_proto_dev(struct mlx5_eswitch_rep *rep)
+{
+ return mlx5_ib_rep_to_dev(rep);
+}
+
+static void mlx5_ib_rep_register_vf_vports(struct mlx5_ib_dev *dev)
+{
+ struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
+ int total_vfs = MLX5_TOTAL_VPORTS(dev->mdev);
+ int vport;
+
+ for (vport = 1; vport < total_vfs; vport++) {
+ struct mlx5_eswitch_rep_if rep_if = {};
+
+ rep_if.load = mlx5_ib_vport_rep_load;
+ rep_if.unload = mlx5_ib_vport_rep_unload;
+ rep_if.get_proto_dev = mlx5_ib_vport_get_proto_dev;
+ mlx5_eswitch_register_vport_rep(esw, vport, &rep_if, REP_IB);
+ }
+}
+
+static void mlx5_ib_rep_unregister_vf_vports(struct mlx5_ib_dev *dev)
+{
+ struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
+ int total_vfs = MLX5_TOTAL_VPORTS(dev->mdev);
+ int vport;
+
+ for (vport = 1; vport < total_vfs; vport++)
+ mlx5_eswitch_unregister_vport_rep(esw, vport, REP_IB);
+}
+
+void mlx5_ib_register_vport_reps(struct mlx5_ib_dev *dev)
+{
+ struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
+ struct mlx5_eswitch_rep_if rep_if = {};
+
+ rep_if.load = mlx5_ib_nic_rep_load;
+ rep_if.unload = mlx5_ib_nic_rep_unload;
+ rep_if.get_proto_dev = mlx5_ib_vport_get_proto_dev;
+ rep_if.priv = dev;
+
+ mlx5_eswitch_register_vport_rep(esw, 0, &rep_if, REP_IB);
+
+ mlx5_ib_rep_register_vf_vports(dev);
+}
+
+void mlx5_ib_unregister_vport_reps(struct mlx5_ib_dev *dev)
+{
+ struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
+
+ mlx5_ib_rep_unregister_vf_vports(dev); /* VFs vports */
+ mlx5_eswitch_unregister_vport_rep(esw, 0, REP_IB); /* UPLINK PF*/
+}
+
+u8 mlx5_ib_eswitch_mode(struct mlx5_eswitch *esw)
+{
+ return mlx5_eswitch_mode(esw);
+}
+
+struct mlx5_ib_dev *mlx5_ib_get_rep_ibdev(struct mlx5_eswitch *esw,
+ int vport_index)
+{
+ return mlx5_eswitch_get_proto_dev(esw, vport_index, REP_IB);
+}
+
+struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw,
+ int vport_index)
+{
+ return mlx5_eswitch_get_proto_dev(esw, vport_index, REP_ETH);
+}
+
+struct mlx5_ib_dev *mlx5_ib_get_uplink_ibdev(struct mlx5_eswitch *esw)
+{
+ return mlx5_eswitch_uplink_get_proto_dev(esw, REP_IB);
+}
+
+struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw, int vport)
+{
+ return mlx5_eswitch_vport_rep(esw, vport);
+}
+
+int create_flow_rule_vport_sq(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_sq *sq)
+{
+ struct mlx5_flow_handle *flow_rule;
+ struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
+
+ if (!dev->rep)
+ return 0;
+
+ flow_rule =
+ mlx5_eswitch_add_send_to_vport_rule(esw,
+ dev->rep->vport,
+ sq->base.mqp.qpn);
+ if (IS_ERR(flow_rule))
+ return PTR_ERR(flow_rule);
+ sq->flow_rule = flow_rule;
+
+ return 0;
+}