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net/mlx5_core: Introduce flow steering firmware commands 

Introduce new Flow Steering (FS) firmware commands,
in-order to support the new flow steering infrastructure.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Maor Gottlieb 2015-12-10 17:12:39 +02:00 committed by David S. Miller
parent 108805fc19
commit 26a8145390
6 changed files with 456 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/mellanox/mlx5/core/Makefile
View File

@ -2,7 +2,7 @@ obj-$(CONFIG_MLX5_CORE) += mlx5_core.o
mlx5_core-y := main.o cmd.o debugfs.o fw.o eq.o uar.o pagealloc.o \
health.o mcg.o cq.o srq.o alloc.o qp.o port.o mr.o pd.o \
mad.o transobj.o vport.o sriov.o
mad.o transobj.o vport.o sriov.o fs_cmd.o
mlx5_core-$(CONFIG_MLX5_CORE_EN) += wq.o flow_table.o eswitch.o \
en_main.o en_flow_table.o en_ethtool.o en_tx.o en_rx.o \
en_txrx.o

239
drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c Normal file
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@ -0,0 +1,239 @@
/*
* Copyright (c) 2015, 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/mlx5/driver.h>
#include <linux/mlx5/device.h>
#include <linux/mlx5/mlx5_ifc.h>
#include "fs_core.h"
#include "fs_cmd.h"
#include "mlx5_core.h"
int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev,
enum fs_flow_table_type type, unsigned int level,
unsigned int log_size, unsigned int *table_id)
{
u32 out[MLX5_ST_SZ_DW(create_flow_table_out)];
u32 in[MLX5_ST_SZ_DW(create_flow_table_in)];
int err;
memset(in, 0, sizeof(in));
MLX5_SET(create_flow_table_in, in, opcode,
MLX5_CMD_OP_CREATE_FLOW_TABLE);
MLX5_SET(create_flow_table_in, in, table_type, type);
MLX5_SET(create_flow_table_in, in, level, level);
MLX5_SET(create_flow_table_in, in, log_size, log_size);
memset(out, 0, sizeof(out));
err = mlx5_cmd_exec_check_status(dev, in, sizeof(in), out,
sizeof(out));
if (!err)
*table_id = MLX5_GET(create_flow_table_out, out,
table_id);
return err;
}
int mlx5_cmd_destroy_flow_table(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft)
{
u32 in[MLX5_ST_SZ_DW(destroy_flow_table_in)];
u32 out[MLX5_ST_SZ_DW(destroy_flow_table_out)];
memset(in, 0, sizeof(in));
memset(out, 0, sizeof(out));
MLX5_SET(destroy_flow_table_in, in, opcode,
MLX5_CMD_OP_DESTROY_FLOW_TABLE);
MLX5_SET(destroy_flow_table_in, in, table_type, ft->type);
MLX5_SET(destroy_flow_table_in, in, table_id, ft->id);
return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out,
sizeof(out));
}
int mlx5_cmd_create_flow_group(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft,
u32 *in,
unsigned int *group_id)
{
int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
u32 out[MLX5_ST_SZ_DW(create_flow_group_out)];
int err;
memset(out, 0, sizeof(out));
MLX5_SET(create_flow_group_in, in, opcode,
MLX5_CMD_OP_CREATE_FLOW_GROUP);
MLX5_SET(create_flow_group_in, in, table_type, ft->type);
MLX5_SET(create_flow_group_in, in, table_id, ft->id);
err = mlx5_cmd_exec_check_status(dev, in,
inlen, out,
sizeof(out));
if (!err)
*group_id = MLX5_GET(create_flow_group_out, out,
group_id);
return err;
}
int mlx5_cmd_destroy_flow_group(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft,
unsigned int group_id)
{
u32 out[MLX5_ST_SZ_DW(destroy_flow_group_out)];
u32 in[MLX5_ST_SZ_DW(destroy_flow_group_in)];
memset(in, 0, sizeof(in));
memset(out, 0, sizeof(out));
MLX5_SET(destroy_flow_group_in, in, opcode,
MLX5_CMD_OP_DESTROY_FLOW_GROUP);
MLX5_SET(destroy_flow_group_in, in, table_type, ft->type);
MLX5_SET(destroy_flow_group_in, in, table_id, ft->id);
MLX5_SET(destroy_flow_group_in, in, group_id, group_id);
return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out,
sizeof(out));
}
static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
int opmod, int modify_mask,
struct mlx5_flow_table *ft,
unsigned group_id,
struct fs_fte *fte)
{
unsigned int inlen = MLX5_ST_SZ_BYTES(set_fte_in) +
fte->dests_size * MLX5_ST_SZ_BYTES(dest_format_struct);
u32 out[MLX5_ST_SZ_DW(set_fte_out)];
struct mlx5_flow_rule *dst;
void *in_flow_context;
void *in_match_value;
void *in_dests;
u32 *in;
int err;
in = mlx5_vzalloc(inlen);
if (!in) {
mlx5_core_warn(dev, "failed to allocate inbox\n");
return -ENOMEM;
}
MLX5_SET(set_fte_in, in, opcode, MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY);
MLX5_SET(set_fte_in, in, op_mod, opmod);
MLX5_SET(set_fte_in, in, modify_enable_mask, modify_mask);
MLX5_SET(set_fte_in, in, table_type, ft->type);
MLX5_SET(set_fte_in, in, table_id, ft->id);
MLX5_SET(set_fte_in, in, flow_index, fte->index);
in_flow_context = MLX5_ADDR_OF(set_fte_in, in, flow_context);
MLX5_SET(flow_context, in_flow_context, group_id, group_id);
MLX5_SET(flow_context, in_flow_context, flow_tag, fte->flow_tag);
MLX5_SET(flow_context, in_flow_context, action, fte->action);
MLX5_SET(flow_context, in_flow_context, destination_list_size,
fte->dests_size);
in_match_value = MLX5_ADDR_OF(flow_context, in_flow_context,
match_value);
memcpy(in_match_value, &fte->val, MLX5_ST_SZ_BYTES(fte_match_param));
in_dests = MLX5_ADDR_OF(flow_context, in_flow_context, destination);
list_for_each_entry(dst, &fte->node.children, node.list) {
unsigned int id;
MLX5_SET(dest_format_struct, in_dests, destination_type,
dst->dest_attr.type);
if (dst->dest_attr.type ==
MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE)
id = dst->dest_attr.ft->id;
else
id = dst->dest_attr.tir_num;
MLX5_SET(dest_format_struct, in_dests, destination_id, id);
in_dests += MLX5_ST_SZ_BYTES(dest_format_struct);
}
memset(out, 0, sizeof(out));
err = mlx5_cmd_exec_check_status(dev, in, inlen, out,
sizeof(out));
kvfree(in);
return err;
}
int mlx5_cmd_create_fte(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft,
unsigned group_id,
struct fs_fte *fte)
{
return mlx5_cmd_set_fte(dev, 0, 0, ft, group_id, fte);
}
int mlx5_cmd_update_fte(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft,
unsigned group_id,
struct fs_fte *fte)
{
int opmod;
int modify_mask;
int atomic_mod_cap = MLX5_CAP_FLOWTABLE(dev,
flow_table_properties_nic_receive.
flow_modify_en);
if (!atomic_mod_cap)
return -ENOTSUPP;
opmod = 1;
modify_mask = 1 <<
MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST;
return mlx5_cmd_set_fte(dev, opmod, modify_mask, ft, group_id, fte);
}
int mlx5_cmd_delete_fte(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft,
unsigned int index)
{
u32 out[MLX5_ST_SZ_DW(delete_fte_out)];
u32 in[MLX5_ST_SZ_DW(delete_fte_in)];
int err;
memset(in, 0, sizeof(in));
memset(out, 0, sizeof(out));
MLX5_SET(delete_fte_in, in, opcode, MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
MLX5_SET(delete_fte_in, in, table_type, ft->type);
MLX5_SET(delete_fte_in, in, table_id, ft->id);
MLX5_SET(delete_fte_in, in, flow_index, index);
err = mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out));
return err;
}

65
drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h Normal file
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@ -0,0 +1,65 @@
/*
* Copyright (c) 2015, 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.
*/
#ifndef _MLX5_FS_CMD_
#define _MLX5_FS_CMD_
int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev,
enum fs_flow_table_type type, unsigned int level,
unsigned int log_size, unsigned int *table_id);
int mlx5_cmd_destroy_flow_table(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft);
int mlx5_cmd_create_flow_group(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft,
u32 *in, unsigned int *group_id);
int mlx5_cmd_destroy_flow_group(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft,
unsigned int group_id);
int mlx5_cmd_create_fte(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft,
unsigned group_id,
struct fs_fte *fte);
int mlx5_cmd_update_fte(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft,
unsigned group_id,
struct fs_fte *fte);
int mlx5_cmd_delete_fte(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft,
unsigned int index);
#endif

81
drivers/net/ethernet/mellanox/mlx5/core/fs_core.h Normal file
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@ -0,0 +1,81 @@
/*
* Copyright (c) 2015, 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.
*/
#ifndef _MLX5_FS_CORE_
#define _MLX5_FS_CORE_
#include <linux/mlx5/fs.h>
enum fs_node_type {
FS_TYPE_NAMESPACE,
FS_TYPE_PRIO,
FS_TYPE_FLOW_TABLE,
FS_TYPE_FLOW_GROUP,
FS_TYPE_FLOW_ENTRY,
FS_TYPE_FLOW_DEST
};
enum fs_flow_table_type {
FS_FT_NIC_RX = 0x0,
};
enum fs_fte_status {
FS_FTE_STATUS_EXISTING = 1UL << 0,
};
struct fs_node {
struct list_head list;
struct list_head children;
enum fs_node_type type;
};
struct mlx5_flow_rule {
struct fs_node node;
struct mlx5_flow_destination dest_attr;
};
struct mlx5_flow_table {
struct fs_node node;
u32 id;
enum fs_flow_table_type type;
};
struct fs_fte {
struct fs_node node;
u32 val[MLX5_ST_SZ_DW(fte_match_param)];
u32 dests_size;
u32 flow_tag;
u32 index;
u32 action;
};
#endif

47
include/linux/mlx5/fs.h Normal file
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@ -0,0 +1,47 @@
/*
* Copyright (c) 2015, 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.
*/
#ifndef _MLX5_FS_
#define _MLX5_FS_
#include <linux/mlx5/mlx5_ifc.h>
struct mlx5_flow_table;
struct mlx5_flow_destination {
enum mlx5_flow_destination_type type;
union {
u32 tir_num;
struct mlx5_flow_table *ft;
};
};
#endif

34
include/linux/mlx5/mlx5_ifc.h
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@ -256,25 +256,27 @@ struct mlx5_ifc_flow_table_fields_supported_bits {
struct mlx5_ifc_flow_table_prop_layout_bits {
u8 ft_support[0x1];
u8 reserved_0[0x1f];
u8 reserved_0[0x2];
u8 flow_modify_en[0x1];
u8 reserved_1[0x1c];
u8 reserved_1[0x2];
u8 reserved_2[0x2];
u8 log_max_ft_size[0x6];
u8 reserved_2[0x10];
u8 reserved_3[0x10];
u8 max_ft_level[0x8];
u8 reserved_3[0x20];
u8 reserved_4[0x18];
u8 log_max_ft_num[0x8];
u8 reserved_4[0x20];
u8 reserved_5[0x18];
u8 log_max_destination[0x8];
u8 log_max_ft_num[0x8];
u8 reserved_6[0x18];
u8 log_max_destination[0x8];
u8 reserved_7[0x18];
u8 log_max_flow[0x8];
u8 reserved_7[0x40];
u8 reserved_8[0x40];
struct mlx5_ifc_flow_table_fields_supported_bits ft_field_support;
@ -2843,6 +2845,13 @@ struct mlx5_ifc_set_hca_cap_in_bits {
union mlx5_ifc_hca_cap_union_bits capability;
};
enum {
MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION = 0x0,
MLX5_SET_FTE_MODIFY_ENABLE_MASK_FLOW_TAG = 0x1,
MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST = 0x2,
MLX5_SET_FTE_MODIFY_ENABLE_MASK_FLOW_COUNTERS = 0x3
};
struct mlx5_ifc_set_fte_out_bits {
u8 status[0x8];
u8 reserved_0[0x18];
@ -2867,11 +2876,14 @@ struct mlx5_ifc_set_fte_in_bits {
u8 reserved_4[0x8];
u8 table_id[0x18];
u8 reserved_5[0x40];
u8 reserved_5[0x18];
u8 modify_enable_mask[0x8];
u8 reserved_6[0x20];
u8 flow_index[0x20];
u8 reserved_6[0xe0];
u8 reserved_7[0xe0];
struct mlx5_ifc_flow_context_bits flow_context;
};