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path: root/drivers/infiniband/hw/mlx5/cmd.c
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-rw-r--r--drivers/infiniband/hw/mlx5/cmd.c241
1 files changed, 241 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/cmd.c b/drivers/infiniband/hw/mlx5/cmd.c
new file mode 100644
index 0000000000..1d0c8d5e74
--- /dev/null
+++ b/drivers/infiniband/hw/mlx5/cmd.c
@@ -0,0 +1,241 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/*
+ * Copyright (c) 2017-2020, Mellanox Technologies inc. All rights reserved.
+ */
+
+#include "cmd.h"
+
+int mlx5r_cmd_query_special_mkeys(struct mlx5_ib_dev *dev)
+{
+ u32 out[MLX5_ST_SZ_DW(query_special_contexts_out)] = {};
+ u32 in[MLX5_ST_SZ_DW(query_special_contexts_in)] = {};
+ bool is_terminate, is_dump, is_null;
+ int err;
+
+ is_terminate = MLX5_CAP_GEN(dev->mdev, terminate_scatter_list_mkey);
+ is_dump = MLX5_CAP_GEN(dev->mdev, dump_fill_mkey);
+ is_null = MLX5_CAP_GEN(dev->mdev, null_mkey);
+
+ dev->mkeys.terminate_scatter_list_mkey = MLX5_TERMINATE_SCATTER_LIST_LKEY;
+ if (!is_terminate && !is_dump && !is_null)
+ return 0;
+
+ MLX5_SET(query_special_contexts_in, in, opcode,
+ MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS);
+ err = mlx5_cmd_exec_inout(dev->mdev, query_special_contexts, in, out);
+ if (err)
+ return err;
+
+ if (is_dump)
+ dev->mkeys.dump_fill_mkey = MLX5_GET(query_special_contexts_out,
+ out, dump_fill_mkey);
+
+ if (is_null)
+ dev->mkeys.null_mkey = cpu_to_be32(
+ MLX5_GET(query_special_contexts_out, out, null_mkey));
+
+ if (is_terminate)
+ dev->mkeys.terminate_scatter_list_mkey =
+ cpu_to_be32(MLX5_GET(query_special_contexts_out, out,
+ terminate_scatter_list_mkey));
+
+ return 0;
+}
+
+int mlx5_cmd_query_cong_params(struct mlx5_core_dev *dev, int cong_point,
+ void *out)
+{
+ u32 in[MLX5_ST_SZ_DW(query_cong_params_in)] = {};
+
+ MLX5_SET(query_cong_params_in, in, opcode,
+ MLX5_CMD_OP_QUERY_CONG_PARAMS);
+ MLX5_SET(query_cong_params_in, in, cong_protocol, cong_point);
+
+ return mlx5_cmd_exec_inout(dev, query_cong_params, in, out);
+}
+
+void mlx5_cmd_destroy_tir(struct mlx5_core_dev *dev, u32 tirn, u16 uid)
+{
+ u32 in[MLX5_ST_SZ_DW(destroy_tir_in)] = {};
+
+ MLX5_SET(destroy_tir_in, in, opcode, MLX5_CMD_OP_DESTROY_TIR);
+ MLX5_SET(destroy_tir_in, in, tirn, tirn);
+ MLX5_SET(destroy_tir_in, in, uid, uid);
+ mlx5_cmd_exec_in(dev, destroy_tir, in);
+}
+
+void mlx5_cmd_destroy_tis(struct mlx5_core_dev *dev, u32 tisn, u16 uid)
+{
+ u32 in[MLX5_ST_SZ_DW(destroy_tis_in)] = {};
+
+ MLX5_SET(destroy_tis_in, in, opcode, MLX5_CMD_OP_DESTROY_TIS);
+ MLX5_SET(destroy_tis_in, in, tisn, tisn);
+ MLX5_SET(destroy_tis_in, in, uid, uid);
+ mlx5_cmd_exec_in(dev, destroy_tis, in);
+}
+
+int mlx5_cmd_destroy_rqt(struct mlx5_core_dev *dev, u32 rqtn, u16 uid)
+{
+ u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)] = {};
+
+ MLX5_SET(destroy_rqt_in, in, opcode, MLX5_CMD_OP_DESTROY_RQT);
+ MLX5_SET(destroy_rqt_in, in, rqtn, rqtn);
+ MLX5_SET(destroy_rqt_in, in, uid, uid);
+ return mlx5_cmd_exec_in(dev, destroy_rqt, in);
+}
+
+int mlx5_cmd_alloc_transport_domain(struct mlx5_core_dev *dev, u32 *tdn,
+ u16 uid)
+{
+ u32 in[MLX5_ST_SZ_DW(alloc_transport_domain_in)] = {};
+ u32 out[MLX5_ST_SZ_DW(alloc_transport_domain_out)] = {};
+ int err;
+
+ MLX5_SET(alloc_transport_domain_in, in, opcode,
+ MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN);
+ MLX5_SET(alloc_transport_domain_in, in, uid, uid);
+
+ err = mlx5_cmd_exec_inout(dev, alloc_transport_domain, in, out);
+ if (!err)
+ *tdn = MLX5_GET(alloc_transport_domain_out, out,
+ transport_domain);
+
+ return err;
+}
+
+void mlx5_cmd_dealloc_transport_domain(struct mlx5_core_dev *dev, u32 tdn,
+ u16 uid)
+{
+ u32 in[MLX5_ST_SZ_DW(dealloc_transport_domain_in)] = {};
+
+ MLX5_SET(dealloc_transport_domain_in, in, opcode,
+ MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN);
+ MLX5_SET(dealloc_transport_domain_in, in, uid, uid);
+ MLX5_SET(dealloc_transport_domain_in, in, transport_domain, tdn);
+ mlx5_cmd_exec_in(dev, dealloc_transport_domain, in);
+}
+
+int mlx5_cmd_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn, u16 uid)
+{
+ u32 in[MLX5_ST_SZ_DW(dealloc_pd_in)] = {};
+
+ MLX5_SET(dealloc_pd_in, in, opcode, MLX5_CMD_OP_DEALLOC_PD);
+ MLX5_SET(dealloc_pd_in, in, pd, pdn);
+ MLX5_SET(dealloc_pd_in, in, uid, uid);
+ return mlx5_cmd_exec_in(dev, dealloc_pd, in);
+}
+
+int mlx5_cmd_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid,
+ u32 qpn, u16 uid)
+{
+ u32 in[MLX5_ST_SZ_DW(attach_to_mcg_in)] = {};
+ void *gid;
+
+ MLX5_SET(attach_to_mcg_in, in, opcode, MLX5_CMD_OP_ATTACH_TO_MCG);
+ MLX5_SET(attach_to_mcg_in, in, qpn, qpn);
+ MLX5_SET(attach_to_mcg_in, in, uid, uid);
+ gid = MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid);
+ memcpy(gid, mgid, sizeof(*mgid));
+ return mlx5_cmd_exec_in(dev, attach_to_mcg, in);
+}
+
+int mlx5_cmd_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid,
+ u32 qpn, u16 uid)
+{
+ u32 in[MLX5_ST_SZ_DW(detach_from_mcg_in)] = {};
+ void *gid;
+
+ MLX5_SET(detach_from_mcg_in, in, opcode, MLX5_CMD_OP_DETACH_FROM_MCG);
+ MLX5_SET(detach_from_mcg_in, in, qpn, qpn);
+ MLX5_SET(detach_from_mcg_in, in, uid, uid);
+ gid = MLX5_ADDR_OF(detach_from_mcg_in, in, multicast_gid);
+ memcpy(gid, mgid, sizeof(*mgid));
+ return mlx5_cmd_exec_in(dev, detach_from_mcg, in);
+}
+
+int mlx5_cmd_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn, u16 uid)
+{
+ u32 out[MLX5_ST_SZ_DW(alloc_xrcd_out)] = {};
+ u32 in[MLX5_ST_SZ_DW(alloc_xrcd_in)] = {};
+ int err;
+
+ MLX5_SET(alloc_xrcd_in, in, opcode, MLX5_CMD_OP_ALLOC_XRCD);
+ MLX5_SET(alloc_xrcd_in, in, uid, uid);
+ err = mlx5_cmd_exec_inout(dev, alloc_xrcd, in, out);
+ if (!err)
+ *xrcdn = MLX5_GET(alloc_xrcd_out, out, xrcd);
+ return err;
+}
+
+int mlx5_cmd_xrcd_dealloc(struct mlx5_core_dev *dev, u32 xrcdn, u16 uid)
+{
+ u32 in[MLX5_ST_SZ_DW(dealloc_xrcd_in)] = {};
+
+ MLX5_SET(dealloc_xrcd_in, in, opcode, MLX5_CMD_OP_DEALLOC_XRCD);
+ MLX5_SET(dealloc_xrcd_in, in, xrcd, xrcdn);
+ MLX5_SET(dealloc_xrcd_in, in, uid, uid);
+ return mlx5_cmd_exec_in(dev, dealloc_xrcd, in);
+}
+
+int mlx5_cmd_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
+ u16 opmod, u8 port)
+{
+ int outlen = MLX5_ST_SZ_BYTES(mad_ifc_out);
+ int inlen = MLX5_ST_SZ_BYTES(mad_ifc_in);
+ int err = -ENOMEM;
+ void *data;
+ void *resp;
+ u32 *out;
+ u32 *in;
+
+ in = kzalloc(inlen, GFP_KERNEL);
+ out = kzalloc(outlen, GFP_KERNEL);
+ if (!in || !out)
+ goto out;
+
+ MLX5_SET(mad_ifc_in, in, opcode, MLX5_CMD_OP_MAD_IFC);
+ MLX5_SET(mad_ifc_in, in, op_mod, opmod);
+ MLX5_SET(mad_ifc_in, in, port, port);
+
+ data = MLX5_ADDR_OF(mad_ifc_in, in, mad);
+ memcpy(data, inb, MLX5_FLD_SZ_BYTES(mad_ifc_in, mad));
+
+ err = mlx5_cmd_exec_inout(dev, mad_ifc, in, out);
+ if (err)
+ goto out;
+
+ resp = MLX5_ADDR_OF(mad_ifc_out, out, response_mad_packet);
+ memcpy(outb, resp,
+ MLX5_FLD_SZ_BYTES(mad_ifc_out, response_mad_packet));
+
+out:
+ kfree(out);
+ kfree(in);
+ return err;
+}
+
+int mlx5_cmd_uar_alloc(struct mlx5_core_dev *dev, u32 *uarn, u16 uid)
+{
+ u32 out[MLX5_ST_SZ_DW(alloc_uar_out)] = {};
+ u32 in[MLX5_ST_SZ_DW(alloc_uar_in)] = {};
+ int err;
+
+ MLX5_SET(alloc_uar_in, in, opcode, MLX5_CMD_OP_ALLOC_UAR);
+ MLX5_SET(alloc_uar_in, in, uid, uid);
+ err = mlx5_cmd_exec_inout(dev, alloc_uar, in, out);
+ if (err)
+ return err;
+
+ *uarn = MLX5_GET(alloc_uar_out, out, uar);
+ return 0;
+}
+
+int mlx5_cmd_uar_dealloc(struct mlx5_core_dev *dev, u32 uarn, u16 uid)
+{
+ u32 in[MLX5_ST_SZ_DW(dealloc_uar_in)] = {};
+
+ MLX5_SET(dealloc_uar_in, in, opcode, MLX5_CMD_OP_DEALLOC_UAR);
+ MLX5_SET(dealloc_uar_in, in, uar, uarn);
+ MLX5_SET(dealloc_uar_in, in, uid, uid);
+ return mlx5_cmd_exec_in(dev, dealloc_uar, in);
+}