| /* |
| * Copyright (c) 2016, Mellanox Technologies. 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/etherdevice.h> |
| #include <linux/mlx5/driver.h> |
| #include <linux/mlx5/mlx5_ifc.h> |
| #include <linux/mlx5/vport.h> |
| #include <linux/mlx5/fs.h> |
| #include "mlx5_core.h" |
| #include "eswitch.h" |
| |
| struct mlx5_flow_rule * |
| mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *esw, int vport, u32 sqn) |
| { |
| struct mlx5_flow_destination dest; |
| struct mlx5_flow_rule *flow_rule; |
| int match_header = MLX5_MATCH_MISC_PARAMETERS; |
| u32 *match_v, *match_c; |
| void *misc; |
| |
| match_v = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL); |
| match_c = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL); |
| if (!match_v || !match_c) { |
| esw_warn(esw->dev, "FDB: Failed to alloc match parameters\n"); |
| flow_rule = ERR_PTR(-ENOMEM); |
| goto out; |
| } |
| |
| misc = MLX5_ADDR_OF(fte_match_param, match_v, misc_parameters); |
| MLX5_SET(fte_match_set_misc, misc, source_sqn, sqn); |
| MLX5_SET(fte_match_set_misc, misc, source_port, 0x0); /* source vport is 0 */ |
| |
| misc = MLX5_ADDR_OF(fte_match_param, match_c, misc_parameters); |
| MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_sqn); |
| MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port); |
| |
| dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT; |
| dest.vport_num = vport; |
| |
| flow_rule = mlx5_add_flow_rule(esw->fdb_table.fdb, match_header, match_c, |
| match_v, MLX5_FLOW_CONTEXT_ACTION_FWD_DEST, |
| 0, &dest); |
| if (IS_ERR(flow_rule)) |
| esw_warn(esw->dev, "FDB: Failed to add send to vport rule err %ld\n", PTR_ERR(flow_rule)); |
| out: |
| kfree(match_v); |
| kfree(match_c); |
| return flow_rule; |
| } |
| |
| static int esw_add_fdb_miss_rule(struct mlx5_eswitch *esw) |
| { |
| struct mlx5_flow_destination dest; |
| struct mlx5_flow_rule *flow_rule = NULL; |
| u32 *match_v, *match_c; |
| int err = 0; |
| |
| match_v = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL); |
| match_c = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL); |
| if (!match_v || !match_c) { |
| esw_warn(esw->dev, "FDB: Failed to alloc match parameters\n"); |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT; |
| dest.vport_num = 0; |
| |
| flow_rule = mlx5_add_flow_rule(esw->fdb_table.fdb, 0, match_c, match_v, |
| MLX5_FLOW_CONTEXT_ACTION_FWD_DEST, 0, &dest); |
| if (IS_ERR(flow_rule)) { |
| err = PTR_ERR(flow_rule); |
| esw_warn(esw->dev, "FDB: Failed to add miss flow rule err %d\n", err); |
| goto out; |
| } |
| |
| esw->fdb_table.offloads.miss_rule = flow_rule; |
| out: |
| kfree(match_v); |
| kfree(match_c); |
| return err; |
| } |
| |
| #define MAX_PF_SQ 256 |
| |
| int esw_create_offloads_fdb_table(struct mlx5_eswitch *esw, int nvports) |
| { |
| int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); |
| struct mlx5_core_dev *dev = esw->dev; |
| struct mlx5_flow_namespace *root_ns; |
| struct mlx5_flow_table *fdb = NULL; |
| struct mlx5_flow_group *g; |
| u32 *flow_group_in; |
| void *match_criteria; |
| int table_size, ix, err = 0; |
| |
| flow_group_in = mlx5_vzalloc(inlen); |
| if (!flow_group_in) |
| return -ENOMEM; |
| |
| root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB); |
| if (!root_ns) { |
| esw_warn(dev, "Failed to get FDB flow namespace\n"); |
| goto ns_err; |
| } |
| |
| esw_debug(dev, "Create offloads FDB table, log_max_size(%d)\n", |
| MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size)); |
| |
| table_size = nvports + MAX_PF_SQ + 1; |
| fdb = mlx5_create_flow_table(root_ns, 0, table_size, 0); |
| if (IS_ERR(fdb)) { |
| err = PTR_ERR(fdb); |
| esw_warn(dev, "Failed to create FDB Table err %d\n", err); |
| goto fdb_err; |
| } |
| esw->fdb_table.fdb = fdb; |
| |
| /* create send-to-vport group */ |
| memset(flow_group_in, 0, inlen); |
| MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, |
| MLX5_MATCH_MISC_PARAMETERS); |
| |
| match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria); |
| |
| MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_sqn); |
| MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_port); |
| |
| ix = nvports + MAX_PF_SQ; |
| MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0); |
| MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, ix - 1); |
| |
| g = mlx5_create_flow_group(fdb, flow_group_in); |
| if (IS_ERR(g)) { |
| err = PTR_ERR(g); |
| esw_warn(dev, "Failed to create send-to-vport flow group err(%d)\n", err); |
| goto send_vport_err; |
| } |
| esw->fdb_table.offloads.send_to_vport_grp = g; |
| |
| /* create miss group */ |
| memset(flow_group_in, 0, inlen); |
| MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, 0); |
| |
| MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, ix); |
| MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, ix + 1); |
| |
| g = mlx5_create_flow_group(fdb, flow_group_in); |
| if (IS_ERR(g)) { |
| err = PTR_ERR(g); |
| esw_warn(dev, "Failed to create miss flow group err(%d)\n", err); |
| goto miss_err; |
| } |
| esw->fdb_table.offloads.miss_grp = g; |
| |
| err = esw_add_fdb_miss_rule(esw); |
| if (err) |
| goto miss_rule_err; |
| |
| return 0; |
| |
| miss_rule_err: |
| mlx5_destroy_flow_group(esw->fdb_table.offloads.miss_grp); |
| miss_err: |
| mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_grp); |
| send_vport_err: |
| mlx5_destroy_flow_table(fdb); |
| fdb_err: |
| ns_err: |
| kvfree(flow_group_in); |
| return err; |
| } |
| |
| void esw_destroy_offloads_fdb_table(struct mlx5_eswitch *esw) |
| { |
| if (!esw->fdb_table.fdb) |
| return; |
| |
| esw_debug(esw->dev, "Destroy offloads FDB Table\n"); |
| mlx5_del_flow_rule(esw->fdb_table.offloads.miss_rule); |
| mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_grp); |
| mlx5_destroy_flow_group(esw->fdb_table.offloads.miss_grp); |
| |
| mlx5_destroy_flow_table(esw->fdb_table.fdb); |
| } |
| |
| static int esw_create_offloads_table(struct mlx5_eswitch *esw) |
| { |
| struct mlx5_flow_namespace *ns; |
| struct mlx5_flow_table *ft_offloads; |
| struct mlx5_core_dev *dev = esw->dev; |
| int err = 0; |
| |
| ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_OFFLOADS); |
| if (!ns) { |
| esw_warn(esw->dev, "Failed to get offloads flow namespace\n"); |
| return -ENOMEM; |
| } |
| |
| ft_offloads = mlx5_create_flow_table(ns, 0, dev->priv.sriov.num_vfs + 2, 0); |
| if (IS_ERR(ft_offloads)) { |
| err = PTR_ERR(ft_offloads); |
| esw_warn(esw->dev, "Failed to create offloads table, err %d\n", err); |
| return err; |
| } |
| |
| esw->offloads.ft_offloads = ft_offloads; |
| return 0; |
| } |
| |
| static void esw_destroy_offloads_table(struct mlx5_eswitch *esw) |
| { |
| struct mlx5_esw_offload *offloads = &esw->offloads; |
| |
| mlx5_destroy_flow_table(offloads->ft_offloads); |
| } |
| |
| static int esw_create_vport_rx_group(struct mlx5_eswitch *esw) |
| { |
| int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); |
| struct mlx5_flow_group *g; |
| struct mlx5_priv *priv = &esw->dev->priv; |
| u32 *flow_group_in; |
| void *match_criteria, *misc; |
| int err = 0; |
| int nvports = priv->sriov.num_vfs + 2; |
| |
| flow_group_in = mlx5_vzalloc(inlen); |
| if (!flow_group_in) |
| return -ENOMEM; |
| |
| /* create vport rx group */ |
| memset(flow_group_in, 0, inlen); |
| MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, |
| MLX5_MATCH_MISC_PARAMETERS); |
| |
| match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria); |
| misc = MLX5_ADDR_OF(fte_match_param, match_criteria, misc_parameters); |
| MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port); |
| |
| MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0); |
| MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, nvports - 1); |
| |
| g = mlx5_create_flow_group(esw->offloads.ft_offloads, flow_group_in); |
| |
| if (IS_ERR(g)) { |
| err = PTR_ERR(g); |
| mlx5_core_warn(esw->dev, "Failed to create vport rx group err %d\n", err); |
| goto out; |
| } |
| |
| esw->offloads.vport_rx_group = g; |
| out: |
| kfree(flow_group_in); |
| return err; |
| } |
| |
| static void esw_destroy_vport_rx_group(struct mlx5_eswitch *esw) |
| { |
| mlx5_destroy_flow_group(esw->offloads.vport_rx_group); |
| } |
| |
| struct mlx5_flow_rule * |
| mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, int vport, u32 tirn) |
| { |
| struct mlx5_flow_destination dest; |
| struct mlx5_flow_rule *flow_rule; |
| int match_header = MLX5_MATCH_MISC_PARAMETERS; |
| u32 *match_v, *match_c; |
| void *misc; |
| |
| match_v = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL); |
| match_c = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL); |
| if (!match_v || !match_c) { |
| esw_warn(esw->dev, "Failed to alloc match parameters\n"); |
| flow_rule = ERR_PTR(-ENOMEM); |
| goto out; |
| } |
| |
| misc = MLX5_ADDR_OF(fte_match_param, match_v, misc_parameters); |
| MLX5_SET(fte_match_set_misc, misc, source_port, vport); |
| |
| misc = MLX5_ADDR_OF(fte_match_param, match_c, misc_parameters); |
| MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port); |
| |
| dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR; |
| dest.tir_num = tirn; |
| |
| flow_rule = mlx5_add_flow_rule(esw->offloads.ft_offloads, match_header, match_c, |
| match_v, MLX5_FLOW_CONTEXT_ACTION_FWD_DEST, |
| 0, &dest); |
| if (IS_ERR(flow_rule)) { |
| esw_warn(esw->dev, "fs offloads: Failed to add vport rx rule err %ld\n", PTR_ERR(flow_rule)); |
| goto out; |
| } |
| |
| out: |
| kfree(match_v); |
| kfree(match_c); |
| return flow_rule; |
| } |