From 361e196143d4c25c79e7f25f3d88ce8a316929be Mon Sep 17 00:00:00 2001 From: V3n3RiX Date: Sun, 9 Jan 2022 22:11:21 +0000 Subject: sys-kernel/linux-{image,sources}-redcore-lts-legacy : drop v5.4 --- .../files/5.4-nvme-hwmon.patch | 300 --------------------- 1 file changed, 300 deletions(-) delete mode 100644 sys-kernel/linux-sources-redcore-lts-legacy/files/5.4-nvme-hwmon.patch (limited to 'sys-kernel/linux-sources-redcore-lts-legacy/files/5.4-nvme-hwmon.patch') diff --git a/sys-kernel/linux-sources-redcore-lts-legacy/files/5.4-nvme-hwmon.patch b/sys-kernel/linux-sources-redcore-lts-legacy/files/5.4-nvme-hwmon.patch deleted file mode 100644 index d0290576..00000000 --- a/sys-kernel/linux-sources-redcore-lts-legacy/files/5.4-nvme-hwmon.patch +++ /dev/null @@ -1,300 +0,0 @@ -v3: NVME -> NVMe - Call nvme_hwmon_init() only once, when the controller is first - identified - Protect call to nvme_get_log() and reading the log with mutex - Convert error return from nvme_get_log() to Linux error code - in nvme_hwmon_get_smart_log() - Don't read smart log for reporting warning and critical limits - Use get_unaligned_le16() instead of le16_to_cpup() to read the - composite temperature - Use #ifdef CONFIG_NVME_HWMON instead of IS_ENABLED(CONFIG_NVME_HWMON) - -EPROTO -> -EIO for generic NVMe level errors - Tab-align '=' in data structure initializations - -v2: Use devm_kfree() to release memory in error path - -Tested with the following NVMe drives: - Intel SSDPEKKW512G7 500GB - Samsung SSD 960 EVO 500GB - Samsung SSD 970 EVO 500GB - Samsung SSD 970 EVO 1TB - - drivers/nvme/host/Kconfig | 10 ++ - drivers/nvme/host/Makefile | 1 + - drivers/nvme/host/core.c | 6 ++ - drivers/nvme/host/nvme-hwmon.c | 181 +++++++++++++++++++++++++++++++++ - drivers/nvme/host/nvme.h | 8 ++ - 5 files changed, 206 insertions(+) - create mode 100644 drivers/nvme/host/nvme-hwmon.c - -diff --git a/drivers/nvme/host/Kconfig b/drivers/nvme/host/Kconfig -index 2b36f052bfb9..c6439638a419 100644 ---- a/drivers/nvme/host/Kconfig -+++ b/drivers/nvme/host/Kconfig -@@ -23,6 +23,16 @@ config NVME_MULTIPATH - /dev/nvmeXnY device will show up for each NVMe namespaces, - even if it is accessible through multiple controllers. - -+config NVME_HWMON -+ bool "NVMe hardware monitoring" -+ depends on (NVME_CORE=y && HWMON=y) || (NVME_CORE=m && HWMON) -+ help -+ This provides support for NVMe hardware monitoring. If enabled, -+ a hardware monitoring device will be created for each NVMe drive -+ in the system. -+ -+ If unsure, say N. -+ - config NVME_FABRICS - tristate - -diff --git a/drivers/nvme/host/Makefile b/drivers/nvme/host/Makefile -index 8a4b671c5f0c..03de4797a877 100644 ---- a/drivers/nvme/host/Makefile -+++ b/drivers/nvme/host/Makefile -@@ -14,6 +14,7 @@ nvme-core-$(CONFIG_TRACING) += trace.o - nvme-core-$(CONFIG_NVME_MULTIPATH) += multipath.o - nvme-core-$(CONFIG_NVM) += lightnvm.o - nvme-core-$(CONFIG_FAULT_INJECTION_DEBUG_FS) += fault_inject.o -+nvme-core-$(CONFIG_NVME_HWMON) += nvme-hwmon.o - - nvme-y += pci.o - -diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c -index fa7ba09dca77..d039e392de36 100644 ---- a/drivers/nvme/host/core.c -+++ b/drivers/nvme/host/core.c -@@ -2796,6 +2796,9 @@ int nvme_init_identify(struct nvme_ctrl *ctrl) - ctrl->oncs = le16_to_cpu(id->oncs); - ctrl->mtfa = le16_to_cpu(id->mtfa); - ctrl->oaes = le32_to_cpu(id->oaes); -+ ctrl->wctemp = le16_to_cpu(id->wctemp); -+ ctrl->cctemp = le16_to_cpu(id->cctemp); -+ - atomic_set(&ctrl->abort_limit, id->acl + 1); - ctrl->vwc = id->vwc; - if (id->mdts) -@@ -2895,6 +2898,9 @@ int nvme_init_identify(struct nvme_ctrl *ctrl) - if (ret < 0) - return ret; - -+ if (!ctrl->identified) -+ nvme_hwmon_init(ctrl); -+ - ctrl->identified = true; - - return 0; -diff --git a/drivers/nvme/host/nvme-hwmon.c b/drivers/nvme/host/nvme-hwmon.c -new file mode 100644 -index 000000000000..8a86f0363531 ---- /dev/null -+++ b/drivers/nvme/host/nvme-hwmon.c -@@ -0,0 +1,181 @@ -+// SPDX-License-Identifier: GPL-2.0 -+/* -+ * NVM Express hardware monitoring support -+ * Copyright (c) 2019, Guenter Roeck -+ */ -+ -+#include -+#include -+ -+#include "nvme.h" -+ -+struct nvme_hwmon_data { -+ struct nvme_ctrl *ctrl; -+ struct nvme_smart_log log; -+ struct mutex read_lock; -+}; -+ -+static int nvme_hwmon_get_smart_log(struct nvme_hwmon_data *data) -+{ -+ int ret; -+ -+ ret = nvme_get_log(data->ctrl, NVME_NSID_ALL, NVME_LOG_SMART, 0, -+ &data->log, sizeof(data->log), 0); -+ -+ return ret <= 0 ? ret : -EIO; -+} -+ -+static int nvme_hwmon_read(struct device *dev, enum hwmon_sensor_types type, -+ u32 attr, int channel, long *val) -+{ -+ struct nvme_hwmon_data *data = dev_get_drvdata(dev); -+ struct nvme_smart_log *log = &data->log; -+ int temp; -+ int err; -+ -+ /* -+ * First handle attributes which don't require us to read -+ * the smart log. -+ */ -+ switch (attr) { -+ case hwmon_temp_max: -+ *val = (data->ctrl->wctemp - 273) * 1000; -+ return 0; -+ case hwmon_temp_crit: -+ *val = (data->ctrl->cctemp - 273) * 1000; -+ return 0; -+ default: -+ break; -+ } -+ -+ mutex_lock(&data->read_lock); -+ err = nvme_hwmon_get_smart_log(data); -+ if (err) -+ goto unlock; -+ -+ switch (attr) { -+ case hwmon_temp_input: -+ if (!channel) -+ temp = get_unaligned_le16(log->temperature); -+ else -+ temp = le16_to_cpu(log->temp_sensor[channel - 1]); -+ *val = (temp - 273) * 1000; -+ break; -+ case hwmon_temp_crit_alarm: -+ *val = !!(log->critical_warning & NVME_SMART_CRIT_TEMPERATURE); -+ break; -+ default: -+ err = -EOPNOTSUPP; -+ break; -+ } -+unlock: -+ mutex_unlock(&data->read_lock); -+ return err; -+} -+ -+static const char * const nvme_hwmon_sensor_names[] = { -+ "Composite", -+ "Sensor 1", -+ "Sensor 2", -+ "Sensor 3", -+ "Sensor 4", -+ "Sensor 5", -+ "Sensor 6", -+ "Sensor 7", -+ "Sensor 8", -+}; -+ -+static int nvme_hwmon_read_string(struct device *dev, -+ enum hwmon_sensor_types type, u32 attr, -+ int channel, const char **str) -+{ -+ *str = nvme_hwmon_sensor_names[channel]; -+ return 0; -+} -+ -+static umode_t nvme_hwmon_is_visible(const void *_data, -+ enum hwmon_sensor_types type, -+ u32 attr, int channel) -+{ -+ const struct nvme_hwmon_data *data = _data; -+ -+ switch (attr) { -+ case hwmon_temp_crit: -+ if (!channel && data->ctrl->cctemp) -+ return 0444; -+ break; -+ case hwmon_temp_max: -+ if (!channel && data->ctrl->wctemp) -+ return 0444; -+ break; -+ case hwmon_temp_crit_alarm: -+ if (!channel) -+ return 0444; -+ break; -+ case hwmon_temp_input: -+ case hwmon_temp_label: -+ if (!channel || data->log.temp_sensor[channel - 1]) -+ return 0444; -+ break; -+ default: -+ break; -+ } -+ return 0; -+} -+ -+static const struct hwmon_channel_info *nvme_hwmon_info[] = { -+ HWMON_CHANNEL_INFO(chip, HWMON_C_REGISTER_TZ), -+ HWMON_CHANNEL_INFO(temp, -+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | -+ HWMON_T_LABEL | HWMON_T_CRIT_ALARM, -+ HWMON_T_INPUT | HWMON_T_LABEL, -+ HWMON_T_INPUT | HWMON_T_LABEL, -+ HWMON_T_INPUT | HWMON_T_LABEL, -+ HWMON_T_INPUT | HWMON_T_LABEL, -+ HWMON_T_INPUT | HWMON_T_LABEL, -+ HWMON_T_INPUT | HWMON_T_LABEL, -+ HWMON_T_INPUT | HWMON_T_LABEL, -+ HWMON_T_INPUT | HWMON_T_LABEL), -+ NULL -+}; -+ -+static const struct hwmon_ops nvme_hwmon_ops = { -+ .is_visible = nvme_hwmon_is_visible, -+ .read = nvme_hwmon_read, -+ .read_string = nvme_hwmon_read_string, -+}; -+ -+static const struct hwmon_chip_info nvme_hwmon_chip_info = { -+ .ops = &nvme_hwmon_ops, -+ .info = nvme_hwmon_info, -+}; -+ -+void nvme_hwmon_init(struct nvme_ctrl *ctrl) -+{ -+ struct device *dev = ctrl->device; -+ struct nvme_hwmon_data *data; -+ struct device *hwmon; -+ int err; -+ -+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); -+ if (!data) -+ return; -+ -+ data->ctrl = ctrl; -+ mutex_init(&data->read_lock); -+ -+ err = nvme_hwmon_get_smart_log(data); -+ if (err) { -+ dev_warn(dev, "Failed to read smart log (error %d)\n", err); -+ devm_kfree(dev, data); -+ return; -+ } -+ -+ hwmon = devm_hwmon_device_register_with_info(dev, dev_name(dev), data, -+ &nvme_hwmon_chip_info, -+ NULL); -+ if (IS_ERR(hwmon)) { -+ dev_warn(dev, "Failed to instantiate hwmon device\n"); -+ devm_kfree(dev, data); -+ } -+} -diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h -index 22e8401352c2..cb3b242a214e 100644 ---- a/drivers/nvme/host/nvme.h -+++ b/drivers/nvme/host/nvme.h -@@ -231,6 +231,8 @@ struct nvme_ctrl { - u16 kas; - u8 npss; - u8 apsta; -+ u16 wctemp; -+ u16 cctemp; - u32 oaes; - u32 aen_result; - u32 ctratt; -@@ -652,4 +654,10 @@ static inline struct nvme_ns *nvme_get_ns_from_dev(struct device *dev) - return dev_to_disk(dev)->private_data; - } - -+#ifdef CONFIG_NVME_HWMON -+void nvme_hwmon_init(struct nvme_ctrl *ctrl); -+#else -+static inline void nvme_hwmon_init(struct nvme_ctrl *ctrl) { } -+#endif -+ - #endif /* _NVME_H */ --- -2.17.1 - -- cgit v1.2.3