These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / drivers / net / ethernet / mellanox / mlx5 / core / vport.c
diff --git a/kernel/drivers/net/ethernet/mellanox/mlx5/core/vport.c b/kernel/drivers/net/ethernet/mellanox/mlx5/core/vport.c
new file mode 100644 (file)
index 0000000..b94177e
--- /dev/null
@@ -0,0 +1,345 @@
+/*
+ * Copyright (c) 2013-2015, Mellanox Technologies, Ltd.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/export.h>
+#include <linux/etherdevice.h>
+#include <linux/mlx5/driver.h>
+#include <linux/mlx5/vport.h>
+#include "mlx5_core.h"
+
+u8 mlx5_query_vport_state(struct mlx5_core_dev *mdev, u8 opmod)
+{
+       u32 in[MLX5_ST_SZ_DW(query_vport_state_in)];
+       u32 out[MLX5_ST_SZ_DW(query_vport_state_out)];
+       int err;
+
+       memset(in, 0, sizeof(in));
+
+       MLX5_SET(query_vport_state_in, in, opcode,
+                MLX5_CMD_OP_QUERY_VPORT_STATE);
+       MLX5_SET(query_vport_state_in, in, op_mod, opmod);
+
+       err = mlx5_cmd_exec_check_status(mdev, in, sizeof(in), out,
+                                        sizeof(out));
+       if (err)
+               mlx5_core_warn(mdev, "MLX5_CMD_OP_QUERY_VPORT_STATE failed\n");
+
+       return MLX5_GET(query_vport_state_out, out, state);
+}
+EXPORT_SYMBOL(mlx5_query_vport_state);
+
+void mlx5_query_nic_vport_mac_address(struct mlx5_core_dev *mdev, u8 *addr)
+{
+       u32  in[MLX5_ST_SZ_DW(query_nic_vport_context_in)];
+       u32 *out;
+       int outlen = MLX5_ST_SZ_BYTES(query_nic_vport_context_out);
+       u8 *out_addr;
+
+       out = mlx5_vzalloc(outlen);
+       if (!out)
+               return;
+
+       out_addr = MLX5_ADDR_OF(query_nic_vport_context_out, out,
+                               nic_vport_context.permanent_address);
+
+       memset(in, 0, sizeof(in));
+
+       MLX5_SET(query_nic_vport_context_in, in, opcode,
+                MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT);
+
+       memset(out, 0, outlen);
+       mlx5_cmd_exec_check_status(mdev, in, sizeof(in), out, outlen);
+
+       ether_addr_copy(addr, &out_addr[2]);
+
+       kvfree(out);
+}
+EXPORT_SYMBOL(mlx5_query_nic_vport_mac_address);
+
+int mlx5_query_hca_vport_gid(struct mlx5_core_dev *dev, u8 other_vport,
+                            u8 port_num, u16  vf_num, u16 gid_index,
+                            union ib_gid *gid)
+{
+       int in_sz = MLX5_ST_SZ_BYTES(query_hca_vport_gid_in);
+       int out_sz = MLX5_ST_SZ_BYTES(query_hca_vport_gid_out);
+       int is_group_manager;
+       void *out = NULL;
+       void *in = NULL;
+       union ib_gid *tmp;
+       int tbsz;
+       int nout;
+       int err;
+
+       is_group_manager = MLX5_CAP_GEN(dev, vport_group_manager);
+       tbsz = mlx5_get_gid_table_len(MLX5_CAP_GEN(dev, gid_table_size));
+       mlx5_core_dbg(dev, "vf_num %d, index %d, gid_table_size %d\n",
+                     vf_num, gid_index, tbsz);
+
+       if (gid_index > tbsz && gid_index != 0xffff)
+               return -EINVAL;
+
+       if (gid_index == 0xffff)
+               nout = tbsz;
+       else
+               nout = 1;
+
+       out_sz += nout * sizeof(*gid);
+
+       in = kzalloc(in_sz, GFP_KERNEL);
+       out = kzalloc(out_sz, GFP_KERNEL);
+       if (!in || !out) {
+               err = -ENOMEM;
+               goto out;
+       }
+
+       MLX5_SET(query_hca_vport_gid_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_VPORT_GID);
+       if (other_vport) {
+               if (is_group_manager) {
+                       MLX5_SET(query_hca_vport_gid_in, in, vport_number, vf_num);
+                       MLX5_SET(query_hca_vport_gid_in, in, other_vport, 1);
+               } else {
+                       err = -EPERM;
+                       goto out;
+               }
+       }
+       MLX5_SET(query_hca_vport_gid_in, in, gid_index, gid_index);
+
+       if (MLX5_CAP_GEN(dev, num_ports) == 2)
+               MLX5_SET(query_hca_vport_gid_in, in, port_num, port_num);
+
+       err = mlx5_cmd_exec(dev, in, in_sz, out, out_sz);
+       if (err)
+               goto out;
+
+       err = mlx5_cmd_status_to_err_v2(out);
+       if (err)
+               goto out;
+
+       tmp = out + MLX5_ST_SZ_BYTES(query_hca_vport_gid_out);
+       gid->global.subnet_prefix = tmp->global.subnet_prefix;
+       gid->global.interface_id = tmp->global.interface_id;
+
+out:
+       kfree(in);
+       kfree(out);
+       return err;
+}
+EXPORT_SYMBOL_GPL(mlx5_query_hca_vport_gid);
+
+int mlx5_query_hca_vport_pkey(struct mlx5_core_dev *dev, u8 other_vport,
+                             u8 port_num, u16 vf_num, u16 pkey_index,
+                             u16 *pkey)
+{
+       int in_sz = MLX5_ST_SZ_BYTES(query_hca_vport_pkey_in);
+       int out_sz = MLX5_ST_SZ_BYTES(query_hca_vport_pkey_out);
+       int is_group_manager;
+       void *out = NULL;
+       void *in = NULL;
+       void *pkarr;
+       int nout;
+       int tbsz;
+       int err;
+       int i;
+
+       is_group_manager = MLX5_CAP_GEN(dev, vport_group_manager);
+
+       tbsz = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(dev, pkey_table_size));
+       if (pkey_index > tbsz && pkey_index != 0xffff)
+               return -EINVAL;
+
+       if (pkey_index == 0xffff)
+               nout = tbsz;
+       else
+               nout = 1;
+
+       out_sz += nout * MLX5_ST_SZ_BYTES(pkey);
+
+       in = kzalloc(in_sz, GFP_KERNEL);
+       out = kzalloc(out_sz, GFP_KERNEL);
+       if (!in || !out) {
+               err = -ENOMEM;
+               goto out;
+       }
+
+       MLX5_SET(query_hca_vport_pkey_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_VPORT_PKEY);
+       if (other_vport) {
+               if (is_group_manager) {
+                       MLX5_SET(query_hca_vport_pkey_in, in, vport_number, vf_num);
+                       MLX5_SET(query_hca_vport_pkey_in, in, other_vport, 1);
+               } else {
+                       err = -EPERM;
+                       goto out;
+               }
+       }
+       MLX5_SET(query_hca_vport_pkey_in, in, pkey_index, pkey_index);
+
+       if (MLX5_CAP_GEN(dev, num_ports) == 2)
+               MLX5_SET(query_hca_vport_pkey_in, in, port_num, port_num);
+
+       err = mlx5_cmd_exec(dev, in, in_sz, out, out_sz);
+       if (err)
+               goto out;
+
+       err = mlx5_cmd_status_to_err_v2(out);
+       if (err)
+               goto out;
+
+       pkarr = MLX5_ADDR_OF(query_hca_vport_pkey_out, out, pkey);
+       for (i = 0; i < nout; i++, pkey++, pkarr += MLX5_ST_SZ_BYTES(pkey))
+               *pkey = MLX5_GET_PR(pkey, pkarr, pkey);
+
+out:
+       kfree(in);
+       kfree(out);
+       return err;
+}
+EXPORT_SYMBOL_GPL(mlx5_query_hca_vport_pkey);
+
+int mlx5_query_hca_vport_context(struct mlx5_core_dev *dev,
+                                u8 other_vport, u8 port_num,
+                                u16 vf_num,
+                                struct mlx5_hca_vport_context *rep)
+{
+       int out_sz = MLX5_ST_SZ_BYTES(query_hca_vport_context_out);
+       int in[MLX5_ST_SZ_DW(query_hca_vport_context_in)];
+       int is_group_manager;
+       void *out;
+       void *ctx;
+       int err;
+
+       is_group_manager = MLX5_CAP_GEN(dev, vport_group_manager);
+
+       memset(in, 0, sizeof(in));
+       out = kzalloc(out_sz, GFP_KERNEL);
+       if (!out)
+               return -ENOMEM;
+
+       MLX5_SET(query_hca_vport_context_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_VPORT_CONTEXT);
+
+       if (other_vport) {
+               if (is_group_manager) {
+                       MLX5_SET(query_hca_vport_context_in, in, other_vport, 1);
+                       MLX5_SET(query_hca_vport_context_in, in, vport_number, vf_num);
+               } else {
+                       err = -EPERM;
+                       goto ex;
+               }
+       }
+
+       if (MLX5_CAP_GEN(dev, num_ports) == 2)
+               MLX5_SET(query_hca_vport_context_in, in, port_num, port_num);
+
+       err = mlx5_cmd_exec(dev, in, sizeof(in), out,  out_sz);
+       if (err)
+               goto ex;
+       err = mlx5_cmd_status_to_err_v2(out);
+       if (err)
+               goto ex;
+
+       ctx = MLX5_ADDR_OF(query_hca_vport_context_out, out, hca_vport_context);
+       rep->field_select = MLX5_GET_PR(hca_vport_context, ctx, field_select);
+       rep->sm_virt_aware = MLX5_GET_PR(hca_vport_context, ctx, sm_virt_aware);
+       rep->has_smi = MLX5_GET_PR(hca_vport_context, ctx, has_smi);
+       rep->has_raw = MLX5_GET_PR(hca_vport_context, ctx, has_raw);
+       rep->policy = MLX5_GET_PR(hca_vport_context, ctx, vport_state_policy);
+       rep->phys_state = MLX5_GET_PR(hca_vport_context, ctx,
+                                     port_physical_state);
+       rep->vport_state = MLX5_GET_PR(hca_vport_context, ctx, vport_state);
+       rep->port_physical_state = MLX5_GET_PR(hca_vport_context, ctx,
+                                              port_physical_state);
+       rep->port_guid = MLX5_GET64_PR(hca_vport_context, ctx, port_guid);
+       rep->node_guid = MLX5_GET64_PR(hca_vport_context, ctx, node_guid);
+       rep->cap_mask1 = MLX5_GET_PR(hca_vport_context, ctx, cap_mask1);
+       rep->cap_mask1_perm = MLX5_GET_PR(hca_vport_context, ctx,
+                                         cap_mask1_field_select);
+       rep->cap_mask2 = MLX5_GET_PR(hca_vport_context, ctx, cap_mask2);
+       rep->cap_mask2_perm = MLX5_GET_PR(hca_vport_context, ctx,
+                                         cap_mask2_field_select);
+       rep->lid = MLX5_GET_PR(hca_vport_context, ctx, lid);
+       rep->init_type_reply = MLX5_GET_PR(hca_vport_context, ctx,
+                                          init_type_reply);
+       rep->lmc = MLX5_GET_PR(hca_vport_context, ctx, lmc);
+       rep->subnet_timeout = MLX5_GET_PR(hca_vport_context, ctx,
+                                         subnet_timeout);
+       rep->sm_lid = MLX5_GET_PR(hca_vport_context, ctx, sm_lid);
+       rep->sm_sl = MLX5_GET_PR(hca_vport_context, ctx, sm_sl);
+       rep->qkey_violation_counter = MLX5_GET_PR(hca_vport_context, ctx,
+                                                 qkey_violation_counter);
+       rep->pkey_violation_counter = MLX5_GET_PR(hca_vport_context, ctx,
+                                                 pkey_violation_counter);
+       rep->grh_required = MLX5_GET_PR(hca_vport_context, ctx, grh_required);
+       rep->sys_image_guid = MLX5_GET64_PR(hca_vport_context, ctx,
+                                           system_image_guid);
+
+ex:
+       kfree(out);
+       return err;
+}
+EXPORT_SYMBOL_GPL(mlx5_query_hca_vport_context);
+
+int mlx5_query_hca_vport_system_image_guid(struct mlx5_core_dev *dev,
+                                          u64 *sys_image_guid)
+{
+       struct mlx5_hca_vport_context *rep;
+       int err;
+
+       rep = kzalloc(sizeof(*rep), GFP_KERNEL);
+       if (!rep)
+               return -ENOMEM;
+
+       err = mlx5_query_hca_vport_context(dev, 0, 1, 0, rep);
+       if (!err)
+               *sys_image_guid = rep->sys_image_guid;
+
+       kfree(rep);
+       return err;
+}
+EXPORT_SYMBOL_GPL(mlx5_query_hca_vport_system_image_guid);
+
+int mlx5_query_hca_vport_node_guid(struct mlx5_core_dev *dev,
+                                  u64 *node_guid)
+{
+       struct mlx5_hca_vport_context *rep;
+       int err;
+
+       rep = kzalloc(sizeof(*rep), GFP_KERNEL);
+       if (!rep)
+               return -ENOMEM;
+
+       err = mlx5_query_hca_vport_context(dev, 0, 1, 0, rep);
+       if (!err)
+               *node_guid = rep->node_guid;
+
+       kfree(rep);
+       return err;
+}
+EXPORT_SYMBOL_GPL(mlx5_query_hca_vport_node_guid);