Contributors: 10
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Ilan Tayari |
638 |
87.88% |
3 |
21.43% |
| Eli Cohen |
50 |
6.89% |
2 |
14.29% |
| Daniel Jurgens |
19 |
2.62% |
2 |
14.29% |
| Huy Nguyen |
5 |
0.69% |
1 |
7.14% |
| Roi Dayan |
4 |
0.55% |
1 |
7.14% |
| Saeed Mahameed |
4 |
0.55% |
1 |
7.14% |
| Leon Romanovsky |
3 |
0.41% |
1 |
7.14% |
| Gal Pressman |
1 |
0.14% |
1 |
7.14% |
| Colin Ian King |
1 |
0.14% |
1 |
7.14% |
| Jack Morgenstein |
1 |
0.14% |
1 |
7.14% |
| Total |
726 |
|
14 |
|
/*
* Copyright (c) 2017, 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/etherdevice.h>
#include <linux/idr.h>
#include "mlx5_core.h"
#include "lib/mlx5.h"
void mlx5_init_reserved_gids(struct mlx5_core_dev *dev)
{
unsigned int tblsz = MLX5_CAP_ROCE(dev, roce_address_table_size);
ida_init(&dev->roce.reserved_gids.ida);
dev->roce.reserved_gids.start = tblsz;
dev->roce.reserved_gids.count = 0;
}
void mlx5_cleanup_reserved_gids(struct mlx5_core_dev *dev)
{
WARN_ON(!ida_is_empty(&dev->roce.reserved_gids.ida));
dev->roce.reserved_gids.start = 0;
dev->roce.reserved_gids.count = 0;
ida_destroy(&dev->roce.reserved_gids.ida);
}
int mlx5_core_reserve_gids(struct mlx5_core_dev *dev, unsigned int count)
{
if (dev->roce.reserved_gids.start < count) {
mlx5_core_warn(dev, "GID table exhausted attempting to reserve %d more GIDs\n",
count);
return -ENOMEM;
}
if (dev->roce.reserved_gids.count + count > MLX5_MAX_RESERVED_GIDS) {
mlx5_core_warn(dev, "Unable to reserve %d more GIDs\n", count);
return -ENOMEM;
}
dev->roce.reserved_gids.start -= count;
dev->roce.reserved_gids.count += count;
mlx5_core_dbg(dev, "Reserved %u GIDs starting at %u\n",
dev->roce.reserved_gids.count,
dev->roce.reserved_gids.start);
return 0;
}
void mlx5_core_unreserve_gids(struct mlx5_core_dev *dev, unsigned int count)
{
WARN(count > dev->roce.reserved_gids.count, "Unreserving %u GIDs when only %u reserved",
count, dev->roce.reserved_gids.count);
dev->roce.reserved_gids.start += count;
dev->roce.reserved_gids.count -= count;
mlx5_core_dbg(dev, "%u GIDs starting at %u left reserved\n",
dev->roce.reserved_gids.count,
dev->roce.reserved_gids.start);
}
int mlx5_core_reserved_gid_alloc(struct mlx5_core_dev *dev, int *gid_index)
{
int end = dev->roce.reserved_gids.start +
dev->roce.reserved_gids.count - 1;
int index = 0;
index = ida_alloc_range(&dev->roce.reserved_gids.ida,
dev->roce.reserved_gids.start, end,
GFP_KERNEL);
if (index < 0)
return index;
mlx5_core_dbg(dev, "Allocating reserved GID %u\n", index);
*gid_index = index;
return 0;
}
void mlx5_core_reserved_gid_free(struct mlx5_core_dev *dev, int gid_index)
{
mlx5_core_dbg(dev, "Freeing reserved GID %u\n", gid_index);
ida_free(&dev->roce.reserved_gids.ida, gid_index);
}
unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev)
{
return dev->roce.reserved_gids.count;
}
EXPORT_SYMBOL_GPL(mlx5_core_reserved_gids_count);
int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
u8 roce_version, u8 roce_l3_type, const u8 *gid,
const u8 *mac, bool vlan, u16 vlan_id, u8 port_num)
{
#define MLX5_SET_RA(p, f, v) MLX5_SET(roce_addr_layout, p, f, v)
u32 in[MLX5_ST_SZ_DW(set_roce_address_in)] = {};
void *in_addr = MLX5_ADDR_OF(set_roce_address_in, in, roce_address);
char *addr_l3_addr = MLX5_ADDR_OF(roce_addr_layout, in_addr,
source_l3_address);
void *addr_mac = MLX5_ADDR_OF(roce_addr_layout, in_addr,
source_mac_47_32);
int gidsz = MLX5_FLD_SZ_BYTES(roce_addr_layout, source_l3_address);
if (MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
return -EINVAL;
if (gid) {
if (vlan) {
MLX5_SET_RA(in_addr, vlan_valid, 1);
MLX5_SET_RA(in_addr, vlan_id, vlan_id);
}
ether_addr_copy(addr_mac, mac);
memcpy(addr_l3_addr, gid, gidsz);
}
MLX5_SET_RA(in_addr, roce_version, roce_version);
MLX5_SET_RA(in_addr, roce_l3_type, roce_l3_type);
if (MLX5_CAP_GEN(dev, num_vhca_ports) > 0)
MLX5_SET(set_roce_address_in, in, vhca_port_num, port_num);
MLX5_SET(set_roce_address_in, in, roce_address_index, index);
MLX5_SET(set_roce_address_in, in, opcode, MLX5_CMD_OP_SET_ROCE_ADDRESS);
return mlx5_cmd_exec_in(dev, set_roce_address, in);
}
EXPORT_SYMBOL(mlx5_core_roce_gid_set);