mirror of
https://github.com/torvalds/linux.git
synced 2024-12-09 04:31:39 +00:00
1fb7f8973f
Current code uses many different types when dealing with a port of a RDMA device: u8, unsigned int and u32. Switch to u32 to clean up the logic. This allows us to make (at least) the core view consistent and use the same type. Unfortunately not all places can be converted. Many uverbs functions expect port to be u8 so keep those places in order not to break UAPIs. HW/Spec defined values must also not be changed. With the switch to u32 we now can support devices with more than 255 ports. U32_MAX is reserved to make control logic a bit easier to deal with. As a device with U32_MAX ports probably isn't going to happen any time soon this seems like a non issue. When a device with more than 255 ports is created uverbs will report the RDMA device as having 255 ports as this is the max currently supported. The verbs interface is not changed yet because the IBTA spec limits the port size in too many places to be u8 and all applications that relies in verbs won't be able to cope with this change. At this stage, we are extending the interfaces that are using vendor channel solely Once the limitation is lifted mlx5 in switchdev mode will be able to have thousands of SFs created by the device. As the only instance of an RDMA device that reports more than 255 ports will be a representor device and it exposes itself as a RAW Ethernet only device CM/MAD/IPoIB and other ULPs aren't effected by this change and their sysfs/interfaces that are exposes to userspace can remain unchanged. While here cleanup some alignment issues and remove unneeded sanity checks (mainly in rdmavt), Link: https://lore.kernel.org/r/20210301070420.439400-1-leon@kernel.org Signed-off-by: Mark Bloch <mbloch@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
18 lines
607 B
C
18 lines
607 B
C
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
|
|
/*
|
|
* Copyright (c) 2013-2020, Mellanox Technologies inc. All rights reserved.
|
|
*/
|
|
|
|
#ifndef _MLX5_IB_COUNTERS_H
|
|
#define _MLX5_IB_COUNTERS_H
|
|
|
|
#include "mlx5_ib.h"
|
|
|
|
int mlx5_ib_counters_init(struct mlx5_ib_dev *dev);
|
|
void mlx5_ib_counters_cleanup(struct mlx5_ib_dev *dev);
|
|
void mlx5_ib_counters_clear_description(struct ib_counters *counters);
|
|
int mlx5_ib_flow_counters_set_data(struct ib_counters *ibcounters,
|
|
struct mlx5_ib_create_flow *ucmd);
|
|
u16 mlx5_ib_get_counters_id(struct mlx5_ib_dev *dev, u32 port_num);
|
|
#endif /* _MLX5_IB_COUNTERS_H */
|