Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Small drivers fixes, except for ufs which has two large updates, one
  for exposing the device level feature, which is a new addition to the
  device spec and the other reworking the exynos driver to fix coherence
  issues on some android phones"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: megaraid_sas: Driver version update to 07.734.00.00-rc1
  scsi: megaraid_sas: Block zero-length ATA VPD inquiry
  scsi: scsi_transport_srp: Replace min/max nesting with clamp()
  scsi: ufs: core: Add device level exception support
  scsi: ufs: core: Rename ufshcd_wb_presrv_usrspc_keep_vcc_on()
  scsi: smartpqi: Use is_kdump_kernel() to check for kdump
  scsi: pm80xx: Set phy_attached to zero when device is gone
  scsi: ufs: exynos: gs101: Put UFS device in reset on .suspend()
  scsi: ufs: exynos: Move phy calls to .exit() callback
  scsi: ufs: exynos: Enable PRDT pre-fetching with UFSHCD_CAP_CRYPTO
  scsi: ufs: exynos: Ensure consistent phy reference counts
  scsi: ufs: exynos: Disable iocc if dma-coherent property isn't set
  scsi: ufs: exynos: Move UFS shareability value to drvdata
  scsi: ufs: exynos: Ensure pre_link() executes before exynos_ufs_phy_init()
  scsi: iscsi: Fix missing scsi_host_put() in error path
  scsi: ufs: core: Fix a race condition related to device commands
  scsi: hisi_sas: Fix I/O errors caused by hardware port ID changes
  scsi: hisi_sas: Enable force phy when SATA disk directly connected

Author: torvalds

Documentation/ABI/testing/sysfs-driver-ufs

@@ -1604,3 +1604,35 @@ Description:
 		prevent the UFS from frequently performing clock gating/ungating.
 
 		The attribute is read/write.
+
+What:		/sys/bus/platform/drivers/ufshcd/*/device_lvl_exception_count
+What:		/sys/bus/platform/devices/*.ufs/device_lvl_exception_count
+Date:		March 2025
+Contact:	Bao D. Nguyen <[email protected]>
+Description:
+		This attribute is applicable to ufs devices compliant to the
+		JEDEC specifications version 4.1 or later. The
+		device_lvl_exception_count is a counter indicating the number of
+		times the device level exceptions have occurred since the last
+		time this variable is reset.  Writing a 0 value to this
+		attribute will reset the device_lvl_exception_count.  If the
+		device_lvl_exception_count reads a positive value, the user
+		application should read the device_lvl_exception_id attribute to
+		know more information about the exception.
+
+		The attribute is read/write.
+
+What:		/sys/bus/platform/drivers/ufshcd/*/device_lvl_exception_id
+What:		/sys/bus/platform/devices/*.ufs/device_lvl_exception_id
+Date:		March 2025
+Contact:	Bao D. Nguyen <[email protected]>
+Description:
+		Reading the device_lvl_exception_id returns the
+		qDeviceLevelExceptionID attribute of the ufs device JEDEC
+		specification version 4.1. The definition of the
+		qDeviceLevelExceptionID is the ufs device vendor specific
+		implementation.  Refer to the device manufacturer datasheet for
+		more information on the meaning of the qDeviceLevelExceptionID
+		attribute value.
+
+		The attribute is read only.

drivers/scsi/hisi_sas/hisi_sas_main.c

@@ -935,8 +935,28 @@ static void hisi_sas_phyup_work_common(struct work_struct *work,
 		container_of(work, typeof(*phy), works[event]);
 	struct hisi_hba *hisi_hba = phy->hisi_hba;
 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
+	struct asd_sas_port *sas_port = sas_phy->port;
+	struct hisi_sas_port *port = phy->port;
+	struct device *dev = hisi_hba->dev;
+	struct domain_device *port_dev;
 	int phy_no = sas_phy->id;
 
+	if (!test_bit(HISI_SAS_RESETTING_BIT, &hisi_hba->flags) &&
+	    sas_port && port && (port->id != phy->port_id)) {
+		dev_info(dev, "phy%d's hw port id changed from %d to %llu\n",
+				phy_no, port->id, phy->port_id);
+		port_dev = sas_port->port_dev;
+		if (port_dev && !dev_is_expander(port_dev->dev_type)) {
+			/*
+			 * Set the device state to gone to block
+			 * sending IO to the device.
+			 */
+			set_bit(SAS_DEV_GONE, &port_dev->state);
+			hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET);
+			return;
+		}
+	}
+
 	phy->wait_phyup_cnt = 0;
 	if (phy->identify.target_port_protocols == SAS_PROTOCOL_SSP)
 		hisi_hba->hw->sl_notify_ssp(hisi_hba, phy_no);

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

@@ -2501,17 +2501,22 @@ static void prep_ata_v2_hw(struct hisi_hba *hisi_hba,
 	struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
 	struct sas_ata_task *ata_task = &task->ata_task;
 	struct sas_tmf_task *tmf = slot->tmf;
+	int phy_id;
 	u8 *buf_cmd;
 	int has_data = 0, hdr_tag = 0;
 	u32 dw0, dw1 = 0, dw2 = 0;
 
 	/* create header */
 	/* dw0 */
 	dw0 = port->id << CMD_HDR_PORT_OFF;
-	if (parent_dev && dev_is_expander(parent_dev->dev_type))
+	if (parent_dev && dev_is_expander(parent_dev->dev_type)) {
 		dw0 |= 3 << CMD_HDR_CMD_OFF;
-	else
+	} else {
+		phy_id = device->phy->identify.phy_identifier;
+		dw0 |= (1U << phy_id) << CMD_HDR_PHY_ID_OFF;
+		dw0 |= CMD_HDR_FORCE_PHY_MSK;
 		dw0 |= 4 << CMD_HDR_CMD_OFF;
+	}
 
 	if (tmf && ata_task->force_phy) {
 		dw0 |= CMD_HDR_FORCE_PHY_MSK;

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

@@ -359,6 +359,10 @@
 #define CMD_HDR_RESP_REPORT_MSK		(0x1 << CMD_HDR_RESP_REPORT_OFF)
 #define CMD_HDR_TLR_CTRL_OFF		6
 #define CMD_HDR_TLR_CTRL_MSK		(0x3 << CMD_HDR_TLR_CTRL_OFF)
+#define CMD_HDR_PHY_ID_OFF		8
+#define CMD_HDR_PHY_ID_MSK		(0x1ff << CMD_HDR_PHY_ID_OFF)
+#define CMD_HDR_FORCE_PHY_OFF		17
+#define CMD_HDR_FORCE_PHY_MSK		(0x1U << CMD_HDR_FORCE_PHY_OFF)
 #define CMD_HDR_PORT_OFF		18
 #define CMD_HDR_PORT_MSK		(0xf << CMD_HDR_PORT_OFF)
 #define CMD_HDR_PRIORITY_OFF		27
@@ -1429,15 +1433,21 @@ static void prep_ata_v3_hw(struct hisi_hba *hisi_hba,
 	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
 	struct asd_sas_port *sas_port = device->port;
 	struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
+	int phy_id;
 	u8 *buf_cmd;
 	int has_data = 0, hdr_tag = 0;
 	u32 dw1 = 0, dw2 = 0;
 
 	hdr->dw0 = cpu_to_le32(port->id << CMD_HDR_PORT_OFF);
-	if (parent_dev && dev_is_expander(parent_dev->dev_type))
+	if (parent_dev && dev_is_expander(parent_dev->dev_type)) {
 		hdr->dw0 |= cpu_to_le32(3 << CMD_HDR_CMD_OFF);
-	else
+	} else {
+		phy_id = device->phy->identify.phy_identifier;
+		hdr->dw0 |= cpu_to_le32((1U << phy_id)
+				<< CMD_HDR_PHY_ID_OFF);
+		hdr->dw0 |= CMD_HDR_FORCE_PHY_MSK;
 		hdr->dw0 |= cpu_to_le32(4U << CMD_HDR_CMD_OFF);
+	}
 
 	switch (task->data_dir) {
 	case DMA_TO_DEVICE:

drivers/scsi/megaraid/megaraid_sas.h

@@ -23,8 +23,8 @@
 /*
  * MegaRAID SAS Driver meta data
  */
-#define MEGASAS_VERSION				"07.727.03.00-rc1"
-#define MEGASAS_RELDATE				"Oct 03, 2023"
+#define MEGASAS_VERSION				"07.734.00.00-rc1"
+#define MEGASAS_RELDATE				"Apr 03, 2025"
 
 #define MEGASAS_MSIX_NAME_LEN			32
 

drivers/scsi/megaraid/megaraid_sas_base.c

@@ -2103,6 +2103,9 @@ static int megasas_sdev_configure(struct scsi_device *sdev,
 	/* This sdev property may change post OCR */
 	megasas_set_dynamic_target_properties(sdev, lim, is_target_prop);
 
+	if (!MEGASAS_IS_LOGICAL(sdev))
+		sdev->no_vpd_size = 1;
+
 	mutex_unlock(&instance->reset_mutex);
 
 	return 0;
@@ -3662,8 +3665,10 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
 
 		case MFI_STAT_SCSI_IO_FAILED:
 		case MFI_STAT_LD_INIT_IN_PROGRESS:
-			cmd->scmd->result =
-			    (DID_ERROR << 16) | hdr->scsi_status;
+			if (hdr->scsi_status == 0xf0)
+				cmd->scmd->result = (DID_ERROR << 16) | SAM_STAT_CHECK_CONDITION;
+			else
+				cmd->scmd->result = (DID_ERROR << 16) | hdr->scsi_status;
 			break;
 
 		case MFI_STAT_SCSI_DONE_WITH_ERROR:

drivers/scsi/megaraid/megaraid_sas_fusion.c

@@ -2043,7 +2043,10 @@ map_cmd_status(struct fusion_context *fusion,
 
 	case MFI_STAT_SCSI_IO_FAILED:
 	case MFI_STAT_LD_INIT_IN_PROGRESS:
-		scmd->result = (DID_ERROR << 16) | ext_status;
+		if (ext_status == 0xf0)
+			scmd->result = (DID_ERROR << 16) | SAM_STAT_CHECK_CONDITION;
+		else
+			scmd->result = (DID_ERROR << 16) | ext_status;
 		break;
 
 	case MFI_STAT_SCSI_DONE_WITH_ERROR:

drivers/scsi/pm8001/pm8001_sas.c

@@ -766,6 +766,7 @@ static void pm8001_dev_gone_notify(struct domain_device *dev)
 			spin_lock_irqsave(&pm8001_ha->lock, flags);
 		}
 		PM8001_CHIP_DISP->dereg_dev_req(pm8001_ha, device_id);
+		pm8001_ha->phy[pm8001_dev->attached_phy].phy_attached = 0;
 		pm8001_free_dev(pm8001_dev);
 	} else {
 		pm8001_dbg(pm8001_ha, DISC, "Found dev has gone.\n");

drivers/scsi/scsi_transport_iscsi.c

@@ -3182,11 +3182,14 @@ iscsi_set_host_param(struct iscsi_transport *transport,
 	}
 
 	/* see similar check in iscsi_if_set_param() */
-	if (strlen(data) > ev->u.set_host_param.len)
-		return -EINVAL;
+	if (strlen(data) > ev->u.set_host_param.len) {
+		err = -EINVAL;
+		goto out;
+	}
 
 	err = transport->set_host_param(shost, ev->u.set_host_param.param,
 					data, ev->u.set_host_param.len);
+out:
 	scsi_host_put(shost);
 	return err;
 }

drivers/scsi/scsi_transport_srp.c

@@ -388,7 +388,7 @@ static void srp_reconnect_work(struct work_struct *work)
 			     "reconnect attempt %d failed (%d)\n",
 			     ++rport->failed_reconnects, res);
 		delay = rport->reconnect_delay *
-			min(100, max(1, rport->failed_reconnects - 10));
+			clamp(rport->failed_reconnects - 10, 1, 100);
 		if (delay > 0)
 			queue_delayed_work(system_long_wq,
 					   &rport->reconnect_work, delay * HZ);

drivers/scsi/smartpqi/smartpqi_init.c

@@ -19,6 +19,7 @@
 #include <linux/bcd.h>
 #include <linux/reboot.h>
 #include <linux/cciss_ioctl.h>
+#include <linux/crash_dump.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_device.h>
@@ -5246,7 +5247,7 @@ static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info)
 	ctrl_info->error_buffer_length =
 		ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH;
 
-	if (reset_devices)
+	if (is_kdump_kernel())
 		max_transfer_size = min(ctrl_info->max_transfer_size,
 			PQI_MAX_TRANSFER_SIZE_KDUMP);
 	else
@@ -5275,7 +5276,7 @@ static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info)
 	u16 num_elements_per_iq;
 	u16 num_elements_per_oq;
 
-	if (reset_devices) {
+	if (is_kdump_kernel()) {
 		num_queue_groups = 1;
 	} else {
 		int num_cpus;
@@ -8288,12 +8289,12 @@ static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
 	u32 product_id;
 
 	if (reset_devices) {
-		if (pqi_is_fw_triage_supported(ctrl_info)) {
+		if (is_kdump_kernel() && pqi_is_fw_triage_supported(ctrl_info)) {
 			rc = sis_wait_for_fw_triage_completion(ctrl_info);
 			if (rc)
 				return rc;
 		}
-		if (sis_is_ctrl_logging_supported(ctrl_info)) {
+		if (is_kdump_kernel() && sis_is_ctrl_logging_supported(ctrl_info)) {
 			sis_notify_kdump(ctrl_info);
 			rc = sis_wait_for_ctrl_logging_completion(ctrl_info);
 			if (rc)
@@ -8344,7 +8345,7 @@ static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
 	ctrl_info->product_id = (u8)product_id;
 	ctrl_info->product_revision = (u8)(product_id >> 8);
 
-	if (reset_devices) {
+	if (is_kdump_kernel()) {
 		if (ctrl_info->max_outstanding_requests >
 			PQI_MAX_OUTSTANDING_REQUESTS_KDUMP)
 				ctrl_info->max_outstanding_requests =
@@ -8480,7 +8481,7 @@ static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
 	if (rc)
 		return rc;
 
-	if (ctrl_info->ctrl_logging_supported && !reset_devices) {
+	if (ctrl_info->ctrl_logging_supported && !is_kdump_kernel()) {
 		pqi_host_setup_buffer(ctrl_info, &ctrl_info->ctrl_log_memory, PQI_CTRL_LOG_TOTAL_SIZE, PQI_CTRL_LOG_MIN_SIZE);
 		pqi_host_memory_update(ctrl_info, &ctrl_info->ctrl_log_memory, PQI_VENDOR_GENERAL_CTRL_LOG_MEMORY_UPDATE);
 	}

drivers/ufs/core/ufs-sysfs.c

@@ -466,6 +466,56 @@ static ssize_t critical_health_show(struct device *dev,
 	return sysfs_emit(buf, "%d\n", hba->critical_health_count);
 }
 
+static ssize_t device_lvl_exception_count_show(struct device *dev,
+					       struct device_attribute *attr,
+					       char *buf)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+
+	if (hba->dev_info.wspecversion < 0x410)
+		return -EOPNOTSUPP;
+
+	return sysfs_emit(buf, "%u\n", atomic_read(&hba->dev_lvl_exception_count));
+}
+
+static ssize_t device_lvl_exception_count_store(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf, size_t count)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+	unsigned int value;
+
+	if (kstrtouint(buf, 0, &value))
+		return -EINVAL;
+
+	/* the only supported usecase is to reset the dev_lvl_exception_count */
+	if (value)
+		return -EINVAL;
+
+	atomic_set(&hba->dev_lvl_exception_count, 0);
+
+	return count;
+}
+
+static ssize_t device_lvl_exception_id_show(struct device *dev,
+					    struct device_attribute *attr,
+					    char *buf)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+	u64 exception_id;
+	int err;
+
+	ufshcd_rpm_get_sync(hba);
+	err = ufshcd_read_device_lvl_exception_id(hba, &exception_id);
+	ufshcd_rpm_put_sync(hba);
+
+	if (err)
+		return err;
+
+	hba->dev_lvl_exception_id = exception_id;
+	return sysfs_emit(buf, "%llu\n", exception_id);
+}
+
 static DEVICE_ATTR_RW(rpm_lvl);
 static DEVICE_ATTR_RO(rpm_target_dev_state);
 static DEVICE_ATTR_RO(rpm_target_link_state);
@@ -479,6 +529,8 @@ static DEVICE_ATTR_RW(wb_flush_threshold);
 static DEVICE_ATTR_RW(rtc_update_ms);
 static DEVICE_ATTR_RW(pm_qos_enable);
 static DEVICE_ATTR_RO(critical_health);
+static DEVICE_ATTR_RW(device_lvl_exception_count);
+static DEVICE_ATTR_RO(device_lvl_exception_id);
 
 static struct attribute *ufs_sysfs_ufshcd_attrs[] = {
 	&dev_attr_rpm_lvl.attr,
@@ -494,6 +546,8 @@ static struct attribute *ufs_sysfs_ufshcd_attrs[] = {
 	&dev_attr_rtc_update_ms.attr,
 	&dev_attr_pm_qos_enable.attr,
 	&dev_attr_critical_health.attr,
+	&dev_attr_device_lvl_exception_count.attr,
+	&dev_attr_device_lvl_exception_id.attr,
 	NULL
 };
 

drivers/ufs/core/ufshcd-priv.h

@@ -94,6 +94,7 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
 			     enum query_opcode desc_op);
 
 int ufshcd_wb_toggle(struct ufs_hba *hba, bool enable);
+int ufshcd_read_device_lvl_exception_id(struct ufs_hba *hba, u64 *exception_id);
 
 /* Wrapper functions for safely calling variant operations */
 static inline const char *ufshcd_get_var_name(struct ufs_hba *hba)