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net/mlx5e: Introduce mlx5e_channels API to get RQNs

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Currently, struct mlx5e_channels is defined in en.h, along with a lot of
other stuff. In the following commit mlx5e_rx_res will need to get RQNs
(RQ hardware IDs), given a pointer to mlx5e_channels and the channel
index. In order to make it possible without including the whole en.h,
this commit introduces functions that will hide the implementation
details of mlx5e_channels.

Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Maxim Mikityanskiy 2021-04-09 17:31:09 +03:00 committed by Saeed Mahameed
parent 43befe99bc
commit e6e01b5fdc
3 changed files with 63 additions and 1 deletions
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2
drivers/net/ethernet/mellanox/mlx5/core/Makefile
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@ -28,7 +28,7 @@ mlx5_core-$(CONFIG_MLX5_CORE_EN) += en_main.o en_common.o en_fs.o en_ethtool.o \
en/reporter_tx.o en/reporter_rx.o en/params.o en/xsk/pool.o \
en/xsk/setup.o en/xsk/rx.o en/xsk/tx.o en/devlink.o en/ptp.o \
en/qos.o en/trap.o en/fs_tt_redirect.o en/rqt.o en/tir.o \
en/rx_res.o
en/rx_res.o en/channels.o
#
# Netdev extra

46
drivers/net/ethernet/mellanox/mlx5/core/en/channels.c Normal file
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@ -0,0 +1,46 @@
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/* Copyright (c) 2021, Mellanox Technologies inc. All rights reserved. */
#include "channels.h"
#include "en.h"
#include "en/ptp.h"
unsigned int mlx5e_channels_get_num(struct mlx5e_channels *chs)
{
return chs->num;
}
void mlx5e_channels_get_regular_rqn(struct mlx5e_channels *chs, unsigned int ix, u32 *rqn)
{
struct mlx5e_channel *c;
WARN_ON(ix >= mlx5e_channels_get_num(chs));
c = chs->c[ix];
*rqn = c->rq.rqn;
}
bool mlx5e_channels_get_xsk_rqn(struct mlx5e_channels *chs, unsigned int ix, u32 *rqn)
{
struct mlx5e_channel *c;
WARN_ON(ix >= mlx5e_channels_get_num(chs));
c = chs->c[ix];
if (!test_bit(MLX5E_CHANNEL_STATE_XSK, c->state))
return false;
*rqn = c->xskrq.rqn;
return true;
}
bool mlx5e_channels_get_ptp_rqn(struct mlx5e_channels *chs, u32 *rqn)
{
struct mlx5e_ptp *c = chs->ptp;
if (!c || !test_bit(MLX5E_PTP_STATE_RX, c->state))
return false;
*rqn = c->rq.rqn;
return true;
}

16
drivers/net/ethernet/mellanox/mlx5/core/en/channels.h Normal file
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@ -0,0 +1,16 @@
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/* Copyright (c) 2021, Mellanox Technologies inc. All rights reserved. */
#ifndef __MLX5_EN_CHANNELS_H__
#define __MLX5_EN_CHANNELS_H__
#include <linux/kernel.h>
struct mlx5e_channels;
unsigned int mlx5e_channels_get_num(struct mlx5e_channels *chs);
void mlx5e_channels_get_regular_rqn(struct mlx5e_channels *chs, unsigned int ix, u32 *rqn);
bool mlx5e_channels_get_xsk_rqn(struct mlx5e_channels *chs, unsigned int ix, u32 *rqn);
bool mlx5e_channels_get_ptp_rqn(struct mlx5e_channels *chs, u32 *rqn);
#endif /* __MLX5_EN_CHANNELS_H__ */