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From: Saeed Mahameed <saeed@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org, Maxim Mikityanskiy <maximmi@nvidia.com>,
	Tariq Toukan <tariqt@nvidia.com>,
	Saeed Mahameed <saeedm@nvidia.com>
Subject: [net-next 02/16] net/mlx5e: Introduce mlx5e_channels API to get RQNs
Date: Mon,  2 Aug 2021 19:28:39 -0700	[thread overview]
Message-ID: <20210803022853.106973-3-saeed@kernel.org> (raw)
In-Reply-To: <20210803022853.106973-1-saeed@kernel.org>

From: Maxim Mikityanskiy <maximmi@nvidia.com>

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>
---
 .../net/ethernet/mellanox/mlx5/core/Makefile  |  2 +-
 .../ethernet/mellanox/mlx5/core/en/channels.c | 46 +++++++++++++++++++
 .../ethernet/mellanox/mlx5/core/en/channels.h | 16 +++++++
 3 files changed, 63 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/en/channels.c
 create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/en/channels.h

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index 6378dc815df7..e8522ccb3519 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -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
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/channels.c b/drivers/net/ethernet/mellanox/mlx5/core/en/channels.c
new file mode 100644
index 000000000000..e7c14c0de0a7
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/channels.c
@@ -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;
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/channels.h b/drivers/net/ethernet/mellanox/mlx5/core/en/channels.h
new file mode 100644
index 000000000000..ca00cbc827cb
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/channels.h
@@ -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__ */
-- 
2.31.1


  parent reply	other threads:[~2021-08-03  2:29 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-03  2:28 [pull request][net-next 00/16] mlx5 updates 2021-08-02 Saeed Mahameed
2021-08-03  2:28 ` [net-next 01/16] net/mlx5e: Use a new initializer to build uniform indir table Saeed Mahameed
2021-08-03 10:30   ` patchwork-bot+netdevbpf
2021-08-03  2:28 ` Saeed Mahameed [this message]
2021-08-03  2:28 ` [net-next 03/16] net/mlx5e: Hide all implementation details of mlx5e_rx_res Saeed Mahameed
2021-08-03  2:28 ` [net-next 04/16] net/mlx5e: Allocate the array of channels according to the real max_nch Saeed Mahameed
2021-08-03  2:28 ` [net-next 05/16] net/mlx5e: Rename traffic type enums Saeed Mahameed
2021-08-03  2:28 ` [net-next 06/16] net/mlx5e: Rename some related TTC args and functions Saeed Mahameed
2021-08-03  2:28 ` [net-next 07/16] net/mlx5e: Decouple TTC logic from mlx5e Saeed Mahameed
2021-08-03  2:28 ` [net-next 08/16] net/mlx5: Move TTC logic to fs_ttc Saeed Mahameed
2021-08-03  2:28 ` [net-next 09/16] net/mlx5: Embed mlx5_ttc_table Saeed Mahameed
2021-08-03  2:28 ` [net-next 10/16] net/mlx5e: Remove redundant tc act includes Saeed Mahameed
2021-08-03  2:28 ` [net-next 11/16] net/mlx5e: Remove redundant filter_dev arg from parse_tc_fdb_actions() Saeed Mahameed
2021-08-03  2:28 ` [net-next 12/16] net/mlx5e: Remove redundant cap check for flow counter Saeed Mahameed
2021-08-03  2:28 ` [net-next 13/16] net/mlx5e: Remove redundant parse_attr arg Saeed Mahameed
2021-08-03  2:28 ` [net-next 14/16] net/mlx5e: Remove redundant assignment of counter to null Saeed Mahameed
2021-08-03  2:28 ` [net-next 15/16] net/mlx5e: Return -EOPNOTSUPP if more relevant when parsing tc actions Saeed Mahameed
2021-08-03  2:28 ` [net-next 16/16] net/mlx5: Fix missing return value in mlx5_devlink_eswitch_inline_mode_set() Saeed Mahameed

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