From: Moshe Shemesh <moshe@mellanox.com>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Jiri Pirko <jiri@mellanox.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Moshe Shemesh <moshe@mellanox.com>
Subject: [PATCH net-next RFC v2 03/13] net/mlx5: Add functions to set/query MFRL register
Date: Mon, 17 Aug 2020 12:37:42 +0300 [thread overview]
Message-ID: <1597657072-3130-4-git-send-email-moshe@mellanox.com> (raw)
In-Reply-To: <1597657072-3130-1-git-send-email-moshe@mellanox.com>
Add functions to query and set the MFRL reset options supported by
firmware.
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
---
.../net/ethernet/mellanox/mlx5/core/Makefile | 2 +-
.../ethernet/mellanox/mlx5/core/fw_reset.c | 46 +++++++++++++++++++
.../ethernet/mellanox/mlx5/core/fw_reset.h | 13 ++++++
3 files changed, 60 insertions(+), 1 deletion(-)
create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index 10e6886c96ba..4d45a2f6fed6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -16,7 +16,7 @@ mlx5_core-y := main.o cmd.o debugfs.o fw.o eq.o uar.o pagealloc.o \
transobj.o vport.o sriov.o fs_cmd.o fs_core.o pci_irq.o \
fs_counters.o rl.o lag.o dev.o events.o wq.o lib/gid.o \
lib/devcom.o lib/pci_vsc.o lib/dm.o diag/fs_tracepoint.o \
- diag/fw_tracer.o diag/crdump.o devlink.o diag/rsc_dump.o
+ diag/fw_tracer.o diag/crdump.o devlink.o diag/rsc_dump.o fw_reset.o
#
# Netdev basic
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
new file mode 100644
index 000000000000..76d2cece29ac
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/* Copyright (c) 2020, Mellanox Technologies inc. All rights reserved. */
+
+#include "fw_reset.h"
+
+static int mlx5_reg_mfrl_set(struct mlx5_core_dev *dev, u8 reset_level,
+ u8 reset_type_sel, u8 sync_resp, bool sync_start)
+{
+ u32 out[MLX5_ST_SZ_DW(mfrl_reg)] = {};
+ u32 in[MLX5_ST_SZ_DW(mfrl_reg)] = {};
+
+ MLX5_SET(mfrl_reg, in, reset_level, reset_level);
+ MLX5_SET(mfrl_reg, in, rst_type_sel, reset_type_sel);
+ MLX5_SET(mfrl_reg, in, pci_sync_for_fw_update_resp, sync_resp);
+ MLX5_SET(mfrl_reg, in, pci_sync_for_fw_update_start, sync_start);
+
+ return mlx5_core_access_reg(dev, in, sizeof(in), out, sizeof(out), MLX5_REG_MFRL, 0, 1);
+}
+
+int mlx5_reg_mfrl_query(struct mlx5_core_dev *dev, u8 *reset_level, u8 *reset_type)
+{
+ u32 out[MLX5_ST_SZ_DW(mfrl_reg)] = {};
+ u32 in[MLX5_ST_SZ_DW(mfrl_reg)] = {};
+ int err;
+
+ err = mlx5_core_access_reg(dev, in, sizeof(in), out, sizeof(out), MLX5_REG_MFRL, 0, 0);
+ if (err)
+ return err;
+
+ if (reset_level)
+ *reset_level = MLX5_GET(mfrl_reg, out, reset_level);
+ if (reset_type)
+ *reset_type = MLX5_GET(mfrl_reg, out, reset_type);
+
+ return 0;
+}
+
+int mlx5_fw_set_reset_sync(struct mlx5_core_dev *dev, u8 reset_type_sel)
+{
+ return mlx5_reg_mfrl_set(dev, MLX5_MFRL_REG_RESET_LEVEL3, reset_type_sel, 0, true);
+}
+
+int mlx5_fw_set_live_patch(struct mlx5_core_dev *dev)
+{
+ return mlx5_reg_mfrl_set(dev, MLX5_MFRL_REG_RESET_LEVEL0, 0, 0, false);
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h
new file mode 100644
index 000000000000..1bbd95182ca6
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/* Copyright (c) 2020, Mellanox Technologies inc. All rights reserved. */
+
+#ifndef __MLX5_FW_RESET_H
+#define __MLX5_FW_RESET_H
+
+#include "mlx5_core.h"
+
+int mlx5_reg_mfrl_query(struct mlx5_core_dev *dev, u8 *reset_level, u8 *reset_type);
+int mlx5_fw_set_reset_sync(struct mlx5_core_dev *dev, u8 reset_type_sel);
+int mlx5_fw_set_live_patch(struct mlx5_core_dev *dev);
+
+#endif
--
2.17.1
next prev parent reply other threads:[~2020-08-17 9:39 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-17 9:37 [PATCH net-next RFC v2 00/13] Add devlink reload action option Moshe Shemesh
2020-08-17 9:37 ` [PATCH net-next RFC v2 01/13] devlink: Add reload action option to devlink reload command Moshe Shemesh
2020-08-17 16:16 ` Jakub Kicinski
2020-08-18 9:06 ` Moshe Shemesh
2020-08-18 15:37 ` Jakub Kicinski
2020-08-17 16:36 ` Jiri Pirko
2020-08-18 9:10 ` Moshe Shemesh
2020-08-19 0:10 ` Jakub Kicinski
2020-08-19 12:18 ` Moshe Shemesh
2020-08-19 12:46 ` Jiri Pirko
2020-08-19 14:23 ` Moshe Shemesh
2020-08-19 15:18 ` Jiri Pirko
2020-08-19 16:25 ` Jakub Kicinski
2020-08-19 18:55 ` Jiri Pirko
2020-08-17 9:37 ` [PATCH net-next RFC v2 02/13] devlink: Add supported reload actions to dev get Moshe Shemesh
2020-08-17 9:37 ` Moshe Shemesh [this message]
2020-08-17 9:37 ` [PATCH net-next RFC v2 04/13] net/mlx5: Set cap for pci sync for fw update event Moshe Shemesh
2020-08-17 9:37 ` [PATCH net-next RFC v2 05/13] net/mlx5: Handle sync reset request event Moshe Shemesh
2020-08-17 9:37 ` [PATCH net-next RFC v2 06/13] net/mlx5: Handle sync reset now event Moshe Shemesh
2020-08-17 9:37 ` [PATCH net-next RFC v2 07/13] net/mlx5: Handle sync reset abort event Moshe Shemesh
2020-08-17 9:37 ` [PATCH net-next RFC v2 08/13] net/mlx5: Add support for devlink reload action fw activate Moshe Shemesh
2020-08-17 9:37 ` [PATCH net-next RFC v2 09/13] devlink: Add enable_remote_dev_reset generic parameter Moshe Shemesh
2020-08-17 9:37 ` [PATCH net-next RFC v2 10/13] net/mlx5: Add devlink param enable_remote_dev_reset support Moshe Shemesh
2020-08-17 9:37 ` [PATCH net-next RFC v2 11/13] net/mlx5: Add support for fw live patch event Moshe Shemesh
2020-08-17 9:37 ` [PATCH net-next RFC v2 12/13] net/mlx5: Add support for devlink reload action live patch Moshe Shemesh
2020-08-17 9:37 ` [PATCH net-next RFC v2 13/13] devlink: Add Documentation/networking/devlink/devlink-reload.rst Moshe Shemesh
2020-08-17 16:39 ` Jiri Pirko
2020-08-18 9:14 ` Moshe Shemesh
2020-08-18 11:07 ` Jiri Pirko
2020-08-18 20:04 ` Moshe Shemesh
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