e286869b24
- Why I did it 1. Update Mellanox HW-MGMT package to newer version V.7.0030.1011 2. Replace the SONiC PMON Thermal control algorithm with the one inside the HW-MGMT package on all Nvidia platforms 3. Support Spectrum-4 systems - How I did it 1. Update the HW-MGMT package version number and submodule pointer 2. Remove the thermal control algorithm implementation from Mellanox platform API 3. Revise the patch to HW-MGMT package which will disable HW-MGMT from running on SIMX 4. Update the downstream kernel patch list Signed-off-by: Kebo Liu <kebol@nvidia.com>
159 lines
4.2 KiB
Diff
159 lines
4.2 KiB
Diff
From 66c331a304f41a5f1806a827b42bc97ba090c745 Mon Sep 17 00:00:00 2001
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From: Asmaa Mnebhi <asmaa@nvidia.com>
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Date: Tue, 5 Jul 2022 14:49:03 -0400
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Subject: [PATCH backport 5.10 26/63] UBUNTU: SAUCE: Add support to pwr-mlxbf.c
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driver
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BugLink: https://launchpad.net/bugs/1980768
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Signed-off-by: Asmaa Mnebhi <asmaa@nvidia.com>
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Signed-off-by: Ike Panhc <ike.pan@canonical.com>
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1
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Signed-off-by: Ike Panhc <ike.pan@canonical.com>
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---
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drivers/power/reset/Kconfig | 6 ++
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drivers/power/reset/Makefile | 1 +
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drivers/power/reset/pwr-mlxbf.c | 103 ++++++++++++++++++++++++++++++++
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3 files changed, 110 insertions(+)
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create mode 100644 drivers/power/reset/pwr-mlxbf.c
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diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig
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index d55b3727e..41ee02f87 100644
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--- a/drivers/power/reset/Kconfig
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+++ b/drivers/power/reset/Kconfig
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@@ -284,5 +284,11 @@ config NVMEM_REBOOT_MODE
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then the bootloader can read it and take different
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action according to the mode.
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+config POWER_MLXBF
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+ tristate "Mellanox BlueField power handling driver"
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+ depends on (GPIO_MLXBF2 && ACPI)
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+ help
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+ This driver supports reset or low power mode handling for Mellanox BlueField.
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+
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endif
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diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile
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index c51eceba9..51801a5b5 100644
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--- a/drivers/power/reset/Makefile
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+++ b/drivers/power/reset/Makefile
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@@ -33,3 +33,4 @@ obj-$(CONFIG_REBOOT_MODE) += reboot-mode.o
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obj-$(CONFIG_SYSCON_REBOOT_MODE) += syscon-reboot-mode.o
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obj-$(CONFIG_POWER_RESET_SC27XX) += sc27xx-poweroff.o
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obj-$(CONFIG_NVMEM_REBOOT_MODE) += nvmem-reboot-mode.o
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+obj-$(CONFIG_POWER_MLXBF) += pwr-mlxbf.o
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diff --git a/drivers/power/reset/pwr-mlxbf.c b/drivers/power/reset/pwr-mlxbf.c
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new file mode 100644
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index 000000000..3f587a372
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--- /dev/null
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+++ b/drivers/power/reset/pwr-mlxbf.c
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@@ -0,0 +1,103 @@
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+// SPDX-License-Identifier: GPL-2.0-only or BSD-3-Clause
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+
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+/*
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+ * Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES.
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+ */
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+
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+#include <linux/acpi.h>
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+#include <linux/device.h>
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+#include <linux/devm-helpers.h>
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+#include <linux/interrupt.h>
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+#include <linux/kernel.h>
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+#include <linux/mod_devicetable.h>
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+#include <linux/module.h>
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+#include <linux/platform_device.h>
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+#include <linux/pm.h>
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+#include <linux/reboot.h>
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+#include <linux/types.h>
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+#include <linux/version.h>
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+
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+#include <linux/devm-helpers.h>
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+
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+#define DRV_VERSION "1.1"
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+
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+struct pwr_mlxbf {
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+ struct work_struct send_work;
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+ const char *hid;
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+};
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+
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+static void pwr_mlxbf_send_work(struct work_struct *work)
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+{
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+ acpi_bus_generate_netlink_event("button/power.*", "Power Button", 0x80, 1);
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+}
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+
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+static irqreturn_t pwr_mlxbf_irq(int irq, void *ptr)
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+{
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+ const char *rst_pwr_hid = "MLNXBF24";
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+ const char *low_pwr_hid = "MLNXBF29";
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+ struct pwr_mlxbf *priv = ptr;
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+
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+ if (!strncmp(priv->hid, rst_pwr_hid, 8))
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+ emergency_restart();
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+
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+ if (!strncmp(priv->hid, low_pwr_hid, 8))
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+ schedule_work(&priv->send_work);
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+
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+ return IRQ_HANDLED;
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+}
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+
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+static int pwr_mlxbf_probe(struct platform_device *pdev)
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+{
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+ struct device *dev = &pdev->dev;
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+ struct acpi_device *adev;
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+ struct pwr_mlxbf *priv;
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+ const char *hid;
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+ int irq, err;
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+
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+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
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+ if (!priv)
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+ return -ENOMEM;
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+
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+ adev = ACPI_COMPANION(dev);
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+ if (!adev)
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+ return -ENXIO;
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+
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+ hid = acpi_device_hid(adev);
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+ priv->hid = hid;
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+
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+ irq = acpi_dev_gpio_irq_get(ACPI_COMPANION(dev), 0);
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+ if (irq < 0)
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+ return dev_err_probe(dev, irq, "Error getting %s irq.\n", priv->hid);
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+
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+ err = devm_work_autocancel(dev, &priv->send_work, pwr_mlxbf_send_work);
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+ if (err)
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+ return err;
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+
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+ err = devm_request_irq(dev, irq, pwr_mlxbf_irq, 0, hid, priv);
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+ if (err)
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+ dev_err(dev, "Failed request of %s irq\n", priv->hid);
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+
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+ return err;
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+}
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+
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+static const struct acpi_device_id __maybe_unused pwr_mlxbf_acpi_match[] = {
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+ { "MLNXBF24", 0 },
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+ { "MLNXBF29", 0 },
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+ {},
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+};
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+MODULE_DEVICE_TABLE(acpi, pwr_mlxbf_acpi_match);
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+
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+static struct platform_driver pwr_mlxbf_driver = {
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+ .driver = {
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+ .name = "pwr_mlxbf",
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+ .acpi_match_table = pwr_mlxbf_acpi_match,
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+ },
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+ .probe = pwr_mlxbf_probe,
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+};
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+
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+module_platform_driver(pwr_mlxbf_driver);
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+
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+MODULE_DESCRIPTION("Mellanox BlueField power driver");
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+MODULE_AUTHOR("Asmaa Mnebhi <asmaa@nvidia.com>");
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+MODULE_LICENSE("Dual BSD/GPL");
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+MODULE_VERSION(DRV_VERSION);
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--
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2.20.1
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