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

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (scsi_debug, ufs, lpfc, st, fnic, mpi3mr,
  mpt3sas) and the removal of cxlflash.

  The only non-trivial core change is an addition to unit attention
  handling to recognize UAs for power on/reset and new media so the tape
  driver can use it"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (107 commits)
  scsi: st: Tighten the page format heuristics with MODE SELECT
  scsi: st: ERASE does not change tape location
  scsi: st: Fix array overflow in st_setup()
  scsi: target: tcm_loop: Fix wrong abort tag
  scsi: lpfc: Restore clearing of NLP_UNREG_INP in ndlp->nlp_flag
  scsi: hisi_sas: Fixed failure to issue vendor specific commands
  scsi: fnic: Remove unnecessary NUL-terminations
  scsi: fnic: Remove redundant flush_workqueue() calls
  scsi: core: Use a switch statement when attaching VPD pages
  scsi: ufs: renesas: Add initialization code for R-Car S4-8 ES1.2
  scsi: ufs: renesas: Add reusable functions
  scsi: ufs: renesas: Refactor 0x10ad/0x10af PHY settings
  scsi: ufs: renesas: Remove register control helper function
  scsi: ufs: renesas: Add register read to remove save/set/restore
  scsi: ufs: renesas: Replace init data by init code
  scsi: ufs: dt-bindings: renesas,ufs: Add calibration data
  scsi: mpi3mr: Task Abort EH Support
  scsi: storvsc: Don't report the host packet status as the hv status
  scsi: isci: Make most module parameters static
  scsi: megaraid_sas: Make most module parameters static
  ...

Author: torvalds

Documentation/ABI/testing/sysfs-driver-ufs

@@ -1559,3 +1559,48 @@ Description:
 		Symbol - HCMID. This file shows the UFSHCD manufacturer id.
 		The Manufacturer ID is defined by JEDEC in JEDEC-JEP106.
 		The file is read only.
+
+What:		/sys/bus/platform/drivers/ufshcd/*/critical_health
+What:		/sys/bus/platform/devices/*.ufs/critical_health
+Date:		February 2025
+Contact:	Avri Altman <[email protected]>
+Description:	Report the number of times a critical health event has been
+		reported by a UFS device. Further insight into the specific
+		issue can be gained by reading one of: bPreEOLInfo,
+		bDeviceLifeTimeEstA, bDeviceLifeTimeEstB,
+		bWriteBoosterBufferLifeTimeEst, and bRPMBLifeTimeEst.
+
+		The file is read only.
+
+What:		/sys/bus/platform/drivers/ufshcd/*/clkscale_enable
+What:		/sys/bus/platform/devices/*.ufs/clkscale_enable
+Date:		January 2025
+Contact:	Ziqi Chen <[email protected]>
+Description:
+		This attribute shows whether the UFS clock scaling is enabled or not.
+		And it can be used to enable/disable the clock scaling by writing
+		1 or 0 to this attribute.
+
+		The attribute is read/write.
+
+What:		/sys/bus/platform/drivers/ufshcd/*/clkgate_enable
+What:		/sys/bus/platform/devices/*.ufs/clkgate_enable
+Date:		January 2025
+Contact:	Ziqi Chen <[email protected]>
+Description:
+		This attribute shows whether the UFS clock gating is enabled or not.
+		And it can be used to enable/disable the clock gating by writing
+		1 or 0 to this attribute.
+
+		The attribute is read/write.
+
+What:		/sys/bus/platform/drivers/ufshcd/*/clkgate_delay_ms
+What:		/sys/bus/platform/devices/*.ufs/clkgate_delay_ms
+Date:		January 2025
+Contact:	Ziqi Chen <[email protected]>
+Description:
+		This attribute shows and sets the number of milliseconds of idle time
+		before the UFS driver starts to perform clock gating. This can
+		prevent the UFS from frequently performing clock gating/ungating.
+
+		The attribute is read/write.

Documentation/arch/powerpc/cxlflash.rst

@@ -13,7 +13,6 @@ powerpc
     cpu_families
     cpu_features
     cxl
-    cxlflash
     dawr-power9
     dexcr
     dscr

Documentation/arch/powerpc/index.rst

@@ -33,6 +33,16 @@ properties:
   resets:
     maxItems: 1
 
+  nvmem-cells:
+    maxItems: 1
+
+  nvmem-cell-names:
+    items:
+      - const: calibration
+
+dependencies:
+  nvmem-cells: [ nvmem-cell-names ]
+
 required:
   - compatible
   - reg
@@ -58,4 +68,6 @@ examples:
         freq-table-hz = <200000000 200000000>, <38400000 38400000>;
         power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
         resets = <&cpg 1514>;
+        nvmem-cells = <&ufs_tune>;
+        nvmem-cell-names = "calibration";
     };

Documentation/devicetree/bindings/ufs/renesas,ufs.yaml

@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ufs/rockchip,rk3576-ufshc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip UFS Host Controller
+
+maintainers:
+  - Shawn Lin <[email protected]>
+
+allOf:
+  - $ref: ufs-common.yaml
+
+properties:
+  compatible:
+    const: rockchip,rk3576-ufshc
+
+  reg:
+    maxItems: 5
+
+  reg-names:
+    items:
+      - const: hci
+      - const: mphy
+      - const: hci_grf
+      - const: mphy_grf
+      - const: hci_apb
+
+  clocks:
+    maxItems: 4
+
+  clock-names:
+    items:
+      - const: core
+      - const: pclk
+      - const: pclk_mphy
+      - const: ref_out
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 4
+
+  reset-names:
+    items:
+      - const: biu
+      - const: sys
+      - const: ufs
+      - const: grf
+
+  reset-gpios:
+    maxItems: 1
+    description: |
+      GPIO specifiers for host to reset the whole UFS device including PHY and
+      memory. This gpio is active low and should choose the one whose high output
+      voltage is lower than 1.5V based on the UFS spec.
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - clock-names
+  - interrupts
+  - power-domains
+  - resets
+  - reset-names
+  - reset-gpios
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rockchip,rk3576-cru.h>
+    #include <dt-bindings/reset/rockchip,rk3576-cru.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/rockchip,rk3576-power.h>
+    #include <dt-bindings/pinctrl/rockchip.h>
+    #include <dt-bindings/gpio/gpio.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        ufshc: ufshc@2a2d0000 {
+            compatible = "rockchip,rk3576-ufshc";
+            reg = <0x0 0x2a2d0000 0x0 0x10000>,
+                  <0x0 0x2b040000 0x0 0x10000>,
+                  <0x0 0x2601f000 0x0 0x1000>,
+                  <0x0 0x2603c000 0x0 0x1000>,
+                  <0x0 0x2a2e0000 0x0 0x10000>;
+            reg-names = "hci", "mphy", "hci_grf", "mphy_grf", "hci_apb";
+            clocks = <&cru ACLK_UFS_SYS>, <&cru PCLK_USB_ROOT>, <&cru PCLK_MPHY>,
+                     <&cru CLK_REF_UFS_CLKOUT>;
+            clock-names = "core", "pclk", "pclk_mphy", "ref_out";
+            interrupts = <GIC_SPI 361 IRQ_TYPE_LEVEL_HIGH>;
+            power-domains = <&power RK3576_PD_USB>;
+            resets = <&cru SRST_A_UFS_BIU>, <&cru SRST_A_UFS_SYS>, <&cru SRST_A_UFS>,
+                     <&cru SRST_P_UFS_GRF>;
+            reset-names = "biu", "sys", "ufs", "grf";
+            reset-gpios = <&gpio4 RK_PD0 GPIO_ACTIVE_LOW>;
+        };
+    };

Documentation/devicetree/bindings/ufs/rockchip,rk3576-ufshc.yaml

@@ -157,6 +157,11 @@ enabled driver and mode options. The value in the file is a bit mask where the
 bit definitions are the same as those used with MTSETDRVBUFFER in setting the
 options.
 
+Each directory contains the entry 'position_lost_in_reset'. If this value is
+one, reading and writing to the device is blocked after device reset. Most
+devices rewind the tape after reset and the writes/read don't access the
+tape position the user expects.
+
 A link named 'tape' is made from the SCSI device directory to the class
 directory corresponding to the mode 0 auto-rewind device (e.g., st0).
 

Documentation/scsi/st.rst

@@ -377,7 +377,7 @@ Code  Seq#    Include File                                           Comments
 0xC0  00-0F  linux/usb/iowarrior.h
 0xCA  00-0F  uapi/misc/cxl.h
 0xCA  10-2F  uapi/misc/ocxl.h
-0xCA  80-BF  uapi/scsi/cxlflash_ioctl.h
+0xCA  80-BF  uapi/scsi/cxlflash_ioctl.h                              Dead since 6.14
 0xCB  00-1F                                                          CBM serial IEC bus in development:
                                                                      <mailto:[email protected]>
 0xCC  00-0F  drivers/misc/ibmvmc.h                                   pseries VMC driver

Documentation/userspace-api/ioctl/ioctl-number.rst

@@ -6354,15 +6354,6 @@ F:	drivers/misc/cxl/
 F:	include/misc/cxl*
 F:	include/uapi/misc/cxl.h
 
-CXLFLASH (IBM Coherent Accelerator Processor Interface CAPI Flash) SCSI DRIVER
-M:	Manoj N. Kumar <[email protected]>
-M:	Uma Krishnan <[email protected]>
-L:	[email protected]
-S:	Obsolete
-F:	Documentation/arch/powerpc/cxlflash.rst
-F:	drivers/scsi/cxlflash/
-F:	include/uapi/scsi/cxlflash_ioctl.h
-
 CYBERPRO FB DRIVER
 M:	Russell King <[email protected]>
 L:	[email protected] (moderated for non-subscribers)

MAINTAINERS

@@ -1221,6 +1221,30 @@
 			};
 		};
 
+		ufshc: ufshc@2a2d0000 {
+			compatible = "rockchip,rk3576-ufshc";
+			reg = <0x0 0x2a2d0000 0x0 0x10000>,
+			      <0x0 0x2b040000 0x0 0x10000>,
+			      <0x0 0x2601f000 0x0 0x1000>,
+			      <0x0 0x2603c000 0x0 0x1000>,
+			      <0x0 0x2a2e0000 0x0 0x10000>;
+			reg-names = "hci", "mphy", "hci_grf", "mphy_grf", "hci_apb";
+			clocks = <&cru ACLK_UFS_SYS>, <&cru PCLK_USB_ROOT>, <&cru PCLK_MPHY>,
+				 <&cru CLK_REF_UFS_CLKOUT>;
+			clock-names = "core", "pclk", "pclk_mphy", "ref_out";
+			assigned-clocks = <&cru CLK_REF_OSC_MPHY>;
+			assigned-clock-parents = <&cru CLK_REF_MPHY_26M>;
+			interrupts = <GIC_SPI 361 IRQ_TYPE_LEVEL_HIGH>;
+			power-domains = <&power RK3576_PD_USB>;
+			pinctrl-0 = <&ufs_refclk>;
+			pinctrl-names = "default";
+			resets = <&cru SRST_A_UFS_BIU>, <&cru SRST_A_UFS_SYS>,
+				 <&cru SRST_A_UFS>, <&cru SRST_P_UFS_GRF>;
+			reset-names = "biu", "sys", "ufs", "grf";
+			reset-gpios = <&gpio4 RK_PD0 GPIO_ACTIVE_LOW>;
+			status = "disabled";
+		};
+
 		sdmmc: mmc@2a310000 {
 			compatible = "rockchip,rk3576-dw-mshc";
 			reg = <0x0 0x2a310000 0x0 0x4000>;

arch/arm64/boot/dts/rockchip/rk3576.dtsi

@@ -1843,65 +1843,6 @@ mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
 		return FAILED;
 }
 
-/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
-/**
- *	mptscsih_target_reset - Perform a SCSI TARGET_RESET!
- *	@SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
- *
- *	(linux scsi_host_template.eh_target_reset_handler routine)
- *
- *	Returns SUCCESS or FAILED.
- **/
-int
-mptscsih_target_reset(struct scsi_cmnd * SCpnt)
-{
-	MPT_SCSI_HOST	*hd;
-	int		 retval;
-	VirtDevice	 *vdevice;
-	MPT_ADAPTER	*ioc;
-
-	/* If we can't locate our host adapter structure, return FAILED status.
-	 */
-	if ((hd = shost_priv(SCpnt->device->host)) == NULL){
-		printk(KERN_ERR MYNAM ": target reset: "
-		   "Can't locate host! (sc=%p)\n", SCpnt);
-		return FAILED;
-	}
-
-	ioc = hd->ioc;
-	printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
-	       ioc->name, SCpnt);
-	scsi_print_command(SCpnt);
-
-	vdevice = SCpnt->device->hostdata;
-	if (!vdevice || !vdevice->vtarget) {
-		retval = 0;
-		goto out;
-	}
-
-	/* Target reset to hidden raid component is not supported
-	 */
-	if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
-		retval = FAILED;
-		goto out;
-	}
-
-	retval = mptscsih_IssueTaskMgmt(hd,
-				MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
-				vdevice->vtarget->channel,
-				vdevice->vtarget->id, 0, 0,
-				mptscsih_get_tm_timeout(ioc));
-
- out:
-	printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
-	    ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
-
-	if (retval == 0)
-		return SUCCESS;
-	else
-		return FAILED;
-}
-
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**
@@ -2915,14 +2856,14 @@ mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
 		timeout = 10;
 		break;
 
-	case RESERVE:
+	case RESERVE_6:
 		cmdLen = 6;
 		dir = MPI_SCSIIO_CONTROL_READ;
 		CDB[0] = cmd;
 		timeout = 10;
 		break;
 
-	case RELEASE:
+	case RELEASE_6:
 		cmdLen = 6;
 		dir = MPI_SCSIIO_CONTROL_READ;
 		CDB[0] = cmd;
@@ -3306,7 +3247,6 @@ EXPORT_SYMBOL(mptscsih_sdev_destroy);
 EXPORT_SYMBOL(mptscsih_sdev_configure);
 EXPORT_SYMBOL(mptscsih_abort);
 EXPORT_SYMBOL(mptscsih_dev_reset);
-EXPORT_SYMBOL(mptscsih_target_reset);
 EXPORT_SYMBOL(mptscsih_bus_reset);
 EXPORT_SYMBOL(mptscsih_host_reset);
 EXPORT_SYMBOL(mptscsih_bios_param);