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

Pull SCSI updates from James Bottomley:
 "This series is slightly unusual because it includes Arnd's compat
  ioctl tree here:

    1c46a2cf2d Merge tag 'block-ioctl-cleanup-5.6' into 5.6/scsi-queue

  Excluding Arnd's changes, this is mostly an update of the usual
  drivers: megaraid_sas, mpt3sas, qla2xxx, ufs, lpfc, hisi_sas.

  There are a couple of core and base updates around error propagation
  and atomicity in the attribute container base we use for the SCSI
  transport classes.

  The rest is minor changes and updates"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (149 commits)
  scsi: hisi_sas: Rename hisi_sas_cq.pci_irq_mask
  scsi: hisi_sas: Add prints for v3 hw interrupt converge and automatic affinity
  scsi: hisi_sas: Modify the file permissions of trigger_dump to write only
  scsi: hisi_sas: Replace magic number when handle channel interrupt
  scsi: hisi_sas: replace spin_lock_irqsave/spin_unlock_restore with spin_lock/spin_unlock
  scsi: hisi_sas: use threaded irq to process CQ interrupts
  scsi: ufs: Use UFS device indicated maximum LU number
  scsi: ufs: Add max_lu_supported in struct ufs_dev_info
  scsi: ufs: Delete is_init_prefetch from struct ufs_hba
  scsi: ufs: Inline two functions into their callers
  scsi: ufs: Move ufshcd_get_max_pwr_mode() to ufshcd_device_params_init()
  scsi: ufs: Split ufshcd_probe_hba() based on its called flow
  scsi: ufs: Delete struct ufs_dev_desc
  scsi: ufs: Fix ufshcd_probe_hba() reture value in case ufshcd_scsi_add_wlus() fails
  scsi: ufs-mediatek: enable low-power mode for hibern8 state
  scsi: ufs: export some functions for vendor usage
  scsi: ufs-mediatek: add dbg_register_dump implementation
  scsi: qla2xxx: Fix a NULL pointer dereference in an error path
  scsi: qla1280: Make checking for 64bit support consistent
  scsi: megaraid_sas: Update driver version to 07.713.01.00-rc1
  ...

Documentation/core-api/index.rst

@@ -40,6 +40,7 @@ Core utilities
    gcc-plugins
    symbol-namespaces
    padata
+   ioctl
 
 
 Interfaces for kernel debugging

Documentation/core-api/ioctl.rst

@@ -0,0 +1,253 @@
+======================
+ioctl based interfaces
+======================
+
+ioctl() is the most common way for applications to interface
+with device drivers. It is flexible and easily extended by adding new
+commands and can be passed through character devices, block devices as
+well as sockets and other special file descriptors.
+
+However, it is also very easy to get ioctl command definitions wrong,
+and hard to fix them later without breaking existing applications,
+so this documentation tries to help developers get it right.
+
+Command number definitions
+==========================
+
+The command number, or request number, is the second argument passed to
+the ioctl system call. While this can be any 32-bit number that uniquely
+identifies an action for a particular driver, there are a number of
+conventions around defining them.
+
+``include/uapi/asm-generic/ioctl.h`` provides four macros for defining
+ioctl commands that follow modern conventions: ``_IO``, ``_IOR``,
+``_IOW``, and ``_IOWR``. These should be used for all new commands,
+with the correct parameters:
+
+_IO/_IOR/_IOW/_IOWR
+   The macro name specifies how the argument will be used.  It may be a
+   pointer to data to be passed into the kernel (_IOW), out of the kernel
+   (_IOR), or both (_IOWR).  _IO can indicate either commands with no
+   argument or those passing an integer value instead of a pointer.
+   It is recommended to only use _IO for commands without arguments,
+   and use pointers for passing data.
+
+type
+   An 8-bit number, often a character literal, specific to a subsystem
+   or driver, and listed in :doc:`../userspace-api/ioctl/ioctl-number`
+
+nr
+  An 8-bit number identifying the specific command, unique for a give
+  value of 'type'
+
+data_type
+  The name of the data type pointed to by the argument, the command number
+  encodes the ``sizeof(data_type)`` value in a 13-bit or 14-bit integer,
+  leading to a limit of 8191 bytes for the maximum size of the argument.
+  Note: do not pass sizeof(data_type) type into _IOR/_IOW/IOWR, as that
+  will lead to encoding sizeof(sizeof(data_type)), i.e. sizeof(size_t).
+  _IO does not have a data_type parameter.
+
+
+Interface versions
+==================
+
+Some subsystems use version numbers in data structures to overload
+commands with different interpretations of the argument.
+
+This is generally a bad idea, since changes to existing commands tend
+to break existing applications.
+
+A better approach is to add a new ioctl command with a new number. The
+old command still needs to be implemented in the kernel for compatibility,
+but this can be a wrapper around the new implementation.
+
+Return code
+===========
+
+ioctl commands can return negative error codes as documented in errno(3);
+these get turned into errno values in user space. On success, the return
+code should be zero. It is also possible but not recommended to return
+a positive 'long' value.
+
+When the ioctl callback is called with an unknown command number, the
+handler returns either -ENOTTY or -ENOIOCTLCMD, which also results in
+-ENOTTY being returned from the system call. Some subsystems return
+-ENOSYS or -EINVAL here for historic reasons, but this is wrong.
+
+Prior to Linux 5.5, compat_ioctl handlers were required to return
+-ENOIOCTLCMD in order to use the fallback conversion into native
+commands. As all subsystems are now responsible for handling compat
+mode themselves, this is no longer needed, but it may be important to
+consider when backporting bug fixes to older kernels.
+
+Timestamps
+==========
+
+Traditionally, timestamps and timeout values are passed as ``struct
+timespec`` or ``struct timeval``, but these are problematic because of
+incompatible definitions of these structures in user space after the
+move to 64-bit time_t.
+
+The ``struct __kernel_timespec`` type can be used instead to be embedded
+in other data structures when separate second/nanosecond values are
+desired, or passed to user space directly. This is still not ideal though,
+as the structure matches neither the kernel's timespec64 nor the user
+space timespec exactly. The get_timespec64() and put_timespec64() helper
+functions can be used to ensure that the layout remains compatible with
+user space and the padding is treated correctly.
+
+As it is cheap to convert seconds to nanoseconds, but the opposite
+requires an expensive 64-bit division, a simple __u64 nanosecond value
+can be simpler and more efficient.
+
+Timeout values and timestamps should ideally use CLOCK_MONOTONIC time,
+as returned by ktime_get_ns() or ktime_get_ts64().  Unlike
+CLOCK_REALTIME, this makes the timestamps immune from jumping backwards
+or forwards due to leap second adjustments and clock_settime() calls.
+
+ktime_get_real_ns() can be used for CLOCK_REALTIME timestamps that
+need to be persistent across a reboot or between multiple machines.
+
+32-bit compat mode
+==================
+
+In order to support 32-bit user space running on a 64-bit machine, each
+subsystem or driver that implements an ioctl callback handler must also
+implement the corresponding compat_ioctl handler.
+
+As long as all the rules for data structures are followed, this is as
+easy as setting the .compat_ioctl pointer to a helper function such as
+compat_ptr_ioctl() or blkdev_compat_ptr_ioctl().
+
+compat_ptr()
+------------
+
+On the s390 architecture, 31-bit user space has ambiguous representations
+for data pointers, with the upper bit being ignored. When running such
+a process in compat mode, the compat_ptr() helper must be used to
+clear the upper bit of a compat_uptr_t and turn it into a valid 64-bit
+pointer.  On other architectures, this macro only performs a cast to a
+``void __user *`` pointer.
+
+In an compat_ioctl() callback, the last argument is an unsigned long,
+which can be interpreted as either a pointer or a scalar depending on
+the command. If it is a scalar, then compat_ptr() must not be used, to
+ensure that the 64-bit kernel behaves the same way as a 32-bit kernel
+for arguments with the upper bit set.
+
+The compat_ptr_ioctl() helper can be used in place of a custom
+compat_ioctl file operation for drivers that only take arguments that
+are pointers to compatible data structures.
+
+Structure layout
+----------------
+
+Compatible data structures have the same layout on all architectures,
+avoiding all problematic members:
+
+* ``long`` and ``unsigned long`` are the size of a register, so
+  they can be either 32-bit or 64-bit wide and cannot be used in portable
+  data structures. Fixed-length replacements are ``__s32``, ``__u32``,
+  ``__s64`` and ``__u64``.
+
+* Pointers have the same problem, in addition to requiring the
+  use of compat_ptr(). The best workaround is to use ``__u64``
+  in place of pointers, which requires a cast to ``uintptr_t`` in user
+  space, and the use of u64_to_user_ptr() in the kernel to convert
+  it back into a user pointer.
+
+* On the x86-32 (i386) architecture, the alignment of 64-bit variables
+  is only 32-bit, but they are naturally aligned on most other
+  architectures including x86-64. This means a structure like::
+
+    struct foo {
+        __u32 a;
+        __u64 b;
+        __u32 c;
+    };
+
+  has four bytes of padding between a and b on x86-64, plus another four
+  bytes of padding at the end, but no padding on i386, and it needs a
+  compat_ioctl conversion handler to translate between the two formats.
+
+  To avoid this problem, all structures should have their members
+  naturally aligned, or explicit reserved fields added in place of the
+  implicit padding. The ``pahole`` tool can be used for checking the
+  alignment.
+
+* On ARM OABI user space, structures are padded to multiples of 32-bit,
+  making some structs incompatible with modern EABI kernels if they
+  do not end on a 32-bit boundary.
+
+* On the m68k architecture, struct members are not guaranteed to have an
+  alignment greater than 16-bit, which is a problem when relying on
+  implicit padding.
+
+* Bitfields and enums generally work as one would expect them to,
+  but some properties of them are implementation-defined, so it is better
+  to avoid them completely in ioctl interfaces.
+
+* ``char`` members can be either signed or unsigned, depending on
+  the architecture, so the __u8 and __s8 types should be used for 8-bit
+  integer values, though char arrays are clearer for fixed-length strings.
+
+Information leaks
+=================
+
+Uninitialized data must not be copied back to user space, as this can
+cause an information leak, which can be used to defeat kernel address
+space layout randomization (KASLR), helping in an attack.
+
+For this reason (and for compat support) it is best to avoid any
+implicit padding in data structures.  Where there is implicit padding
+in an existing structure, kernel drivers must be careful to fully
+initialize an instance of the structure before copying it to user
+space.  This is usually done by calling memset() before assigning to
+individual members.
+
+Subsystem abstractions
+======================
+
+While some device drivers implement their own ioctl function, most
+subsystems implement the same command for multiple drivers.  Ideally the
+subsystem has an .ioctl() handler that copies the arguments from and
+to user space, passing them into subsystem specific callback functions
+through normal kernel pointers.
+
+This helps in various ways:
+
+* Applications written for one driver are more likely to work for
+  another one in the same subsystem if there are no subtle differences
+  in the user space ABI.
+
+* The complexity of user space access and data structure layout is done
+  in one place, reducing the potential for implementation bugs.
+
+* It is more likely to be reviewed by experienced developers
+  that can spot problems in the interface when the ioctl is shared
+  between multiple drivers than when it is only used in a single driver.
+
+Alternatives to ioctl
+=====================
+
+There are many cases in which ioctl is not the best solution for a
+problem. Alternatives include:
+
+* System calls are a better choice for a system-wide feature that
+  is not tied to a physical device or constrained by the file system
+  permissions of a character device node
+
+* netlink is the preferred way of configuring any network related
+  objects through sockets.
+
+* debugfs is used for ad-hoc interfaces for debugging functionality
+  that does not need to be exposed as a stable interface to applications.
+
+* sysfs is a good way to expose the state of an in-kernel object
+  that is not tied to a file descriptor.
+
+* configfs can be used for more complex configuration than sysfs
+
+* A custom file system can provide extra flexibility with a simple
+  user interface but adds a lot of complexity to the implementation.

arch/arm64/include/asm/compat.h

@@ -4,6 +4,9 @@
  */
 #ifndef __ASM_COMPAT_H
 #define __ASM_COMPAT_H
+
+#include <asm-generic/compat.h>
+
 #ifdef CONFIG_COMPAT
 
 /*
@@ -13,8 +16,6 @@
 #include <linux/sched.h>
 #include <linux/sched/task_stack.h>
 
-#include <asm-generic/compat.h>
-
 #define COMPAT_USER_HZ		100
 #ifdef __AARCH64EB__
 #define COMPAT_UTS_MACHINE	"armv8b\0\0"
@@ -113,23 +114,6 @@ typedef u32		compat_sigset_word;
 
 #define COMPAT_OFF_T_MAX	0x7fffffff
 
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
-	return (void __user *)(unsigned long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
-	return (u32)(unsigned long)uptr;
-}
-
 #define compat_user_stack_pointer() (user_stack_pointer(task_pt_regs(current)))
 #define COMPAT_MINSIGSTKSZ	2048
 

arch/mips/include/asm/compat.h

@@ -100,24 +100,6 @@ typedef u32		compat_sigset_word;
 
 #define COMPAT_OFF_T_MAX	0x7fffffff
 
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
-	/* cast to a __user pointer via "unsigned long" makes sparse happy */
-	return (void __user *)(unsigned long)(long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
-	return (u32)(unsigned long)uptr;
-}
-
 static inline void __user *arch_compat_alloc_user_space(long len)
 {
 	struct pt_regs *regs = (struct pt_regs *)

arch/parisc/include/asm/compat.h

@@ -173,23 +173,6 @@ struct compat_shmid64_ds {
 #define COMPAT_ELF_NGREG 80
 typedef compat_ulong_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
 
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
-	return (void __user *)(unsigned long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
-	return (u32)(unsigned long)uptr;
-}
-
 static __inline__ void __user *arch_compat_alloc_user_space(long len)
 {
 	struct pt_regs *regs = &current->thread.regs;

arch/powerpc/include/asm/compat.h

@@ -96,23 +96,6 @@ typedef u32		compat_sigset_word;
 
 #define COMPAT_OFF_T_MAX	0x7fffffff
 
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
-	return (void __user *)(unsigned long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
-	return (u32)(unsigned long)uptr;
-}
-
 static inline void __user *arch_compat_alloc_user_space(long len)
 {
 	struct pt_regs *regs = current->thread.regs;

arch/powerpc/oprofile/backtrace.c

@@ -9,7 +9,7 @@
 #include <linux/sched.h>
 #include <asm/processor.h>
 #include <linux/uaccess.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/oprofile_impl.h>
 
 #define STACK_SP(STACK)		*(STACK)

arch/s390/include/asm/compat.h

@@ -177,11 +177,7 @@ static inline void __user *compat_ptr(compat_uptr_t uptr)
 {
 	return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
 }
-
+#define compat_ptr(uptr) compat_ptr(uptr)
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
-	return (u32)(unsigned long)uptr;
-}
 
 #ifdef CONFIG_COMPAT
 

arch/sparc/include/asm/compat.h

@@ -125,23 +125,6 @@ typedef u32		compat_sigset_word;
 
 #define COMPAT_OFF_T_MAX	0x7fffffff
 
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
-	return (void __user *)(unsigned long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
-	return (u32)(unsigned long)uptr;
-}
-
 #ifdef CONFIG_COMPAT
 static inline void __user *arch_compat_alloc_user_space(long len)
 {

arch/um/drivers/ubd_kern.c

@@ -113,6 +113,7 @@ static const struct block_device_operations ubd_blops = {
         .open		= ubd_open,
         .release	= ubd_release,
         .ioctl		= ubd_ioctl,
+        .compat_ioctl	= blkdev_compat_ptr_ioctl,
 	.getgeo		= ubd_getgeo,
 };
 

arch/x86/include/asm/compat.h

@@ -177,23 +177,6 @@ typedef struct user_regs_struct compat_elf_gregset_t;
 	(!!(task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT))
 #endif
 
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
-	return (void __user *)(unsigned long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
-	return (u32)(unsigned long)uptr;
-}
-
 static inline void __user *arch_compat_alloc_user_space(long len)
 {
 	compat_uptr_t sp;

block/Makefile

@@ -25,7 +25,6 @@ obj-$(CONFIG_MQ_IOSCHED_KYBER)	+= kyber-iosched.o
 bfq-y				:= bfq-iosched.o bfq-wf2q.o bfq-cgroup.o
 obj-$(CONFIG_IOSCHED_BFQ)	+= bfq.o
 
-obj-$(CONFIG_BLOCK_COMPAT)	+= compat_ioctl.o
 obj-$(CONFIG_BLK_CMDLINE_PARSER)	+= cmdline-parser.o
 obj-$(CONFIG_BLK_DEV_INTEGRITY) += bio-integrity.o blk-integrity.o
 obj-$(CONFIG_BLK_DEV_INTEGRITY_T10)	+= t10-pi.o

block/bsg.c

@@ -382,6 +382,7 @@ static const struct file_operations bsg_fops = {
 	.open		=	bsg_open,
 	.release	=	bsg_release,
 	.unlocked_ioctl	=	bsg_ioctl,
+	.compat_ioctl	=	compat_ptr_ioctl,
 	.owner		=	THIS_MODULE,
 	.llseek		=	default_llseek,
 };

block/compat_ioctl.c

@@ -1,427 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/blkdev.h>
-#include <linux/blkpg.h>
-#include <linux/blktrace_api.h>
-#include <linux/cdrom.h>
-#include <linux/compat.h>
-#include <linux/elevator.h>
-#include <linux/hdreg.h>
-#include <linux/pr.h>
-#include <linux/slab.h>
-#include <linux/syscalls.h>
-#include <linux/types.h>
-#include <linux/uaccess.h>
-
-static int compat_put_ushort(unsigned long arg, unsigned short val)
-{
-	return put_user(val, (unsigned short __user *)compat_ptr(arg));
-}
-
-static int compat_put_int(unsigned long arg, int val)
-{
-	return put_user(val, (compat_int_t __user *)compat_ptr(arg));
-}
-
-static int compat_put_uint(unsigned long arg, unsigned int val)
-{
-	return put_user(val, (compat_uint_t __user *)compat_ptr(arg));
-}
-
-static int compat_put_long(unsigned long arg, long val)
-{
-	return put_user(val, (compat_long_t __user *)compat_ptr(arg));
-}
-
-static int compat_put_ulong(unsigned long arg, compat_ulong_t val)
-{
-	return put_user(val, (compat_ulong_t __user *)compat_ptr(arg));
-}
-
-static int compat_put_u64(unsigned long arg, u64 val)
-{
-	return put_user(val, (compat_u64 __user *)compat_ptr(arg));
-}
-
-struct compat_hd_geometry {
-	unsigned char heads;
-	unsigned char sectors;
-	unsigned short cylinders;
-	u32 start;
-};
-
-static int compat_hdio_getgeo(struct gendisk *disk, struct block_device *bdev,
-			struct compat_hd_geometry __user *ugeo)
-{
-	struct hd_geometry geo;
-	int ret;
-
-	if (!ugeo)
-		return -EINVAL;
-	if (!disk->fops->getgeo)
-		return -ENOTTY;
-
-	memset(&geo, 0, sizeof(geo));
-	/*
-	 * We need to set the startsect first, the driver may
-	 * want to override it.
-	 */
-	geo.start = get_start_sect(bdev);
-	ret = disk->fops->getgeo(bdev, &geo);
-	if (ret)
-		return ret;
-
-	ret = copy_to_user(ugeo, &geo, 4);
-	ret |= put_user(geo.start, &ugeo->start);
-	if (ret)
-		ret = -EFAULT;
-
-	return ret;
-}
-
-static int compat_hdio_ioctl(struct block_device *bdev, fmode_t mode,
-		unsigned int cmd, unsigned long arg)
-{
-	unsigned long __user *p;
-	int error;
-
-	p = compat_alloc_user_space(sizeof(unsigned long));
-	error = __blkdev_driver_ioctl(bdev, mode,
-				cmd, (unsigned long)p);
-	if (error == 0) {
-		unsigned int __user *uvp = compat_ptr(arg);
-		unsigned long v;
-		if (get_user(v, p) || put_user(v, uvp))
-			error = -EFAULT;
-	}
-	return error;
-}
-
-struct compat_cdrom_read_audio {
-	union cdrom_addr	addr;
-	u8			addr_format;
-	compat_int_t		nframes;
-	compat_caddr_t		buf;
-};
-
-struct compat_cdrom_generic_command {
-	unsigned char	cmd[CDROM_PACKET_SIZE];
-	compat_caddr_t	buffer;
-	compat_uint_t	buflen;
-	compat_int_t	stat;
-	compat_caddr_t	sense;
-	unsigned char	data_direction;
-	compat_int_t	quiet;
-	compat_int_t	timeout;
-	compat_caddr_t	reserved[1];
-};
-
-static int compat_cdrom_read_audio(struct block_device *bdev, fmode_t mode,
-		unsigned int cmd, unsigned long arg)
-{
-	struct cdrom_read_audio __user *cdread_audio;
-	struct compat_cdrom_read_audio __user *cdread_audio32;
-	__u32 data;
-	void __user *datap;
-
-	cdread_audio = compat_alloc_user_space(sizeof(*cdread_audio));
-	cdread_audio32 = compat_ptr(arg);
-
-	if (copy_in_user(&cdread_audio->addr,
-			 &cdread_audio32->addr,
-			 (sizeof(*cdread_audio32) -
-			  sizeof(compat_caddr_t))))
-		return -EFAULT;
-
-	if (get_user(data, &cdread_audio32->buf))
-		return -EFAULT;
-	datap = compat_ptr(data);
-	if (put_user(datap, &cdread_audio->buf))
-		return -EFAULT;
-
-	return __blkdev_driver_ioctl(bdev, mode, cmd,
-			(unsigned long)cdread_audio);
-}
-
-static int compat_cdrom_generic_command(struct block_device *bdev, fmode_t mode,
-		unsigned int cmd, unsigned long arg)
-{
-	struct cdrom_generic_command __user *cgc;
-	struct compat_cdrom_generic_command __user *cgc32;
-	u32 data;
-	unsigned char dir;
-	int itmp;
-
-	cgc = compat_alloc_user_space(sizeof(*cgc));
-	cgc32 = compat_ptr(arg);
-
-	if (copy_in_user(&cgc->cmd, &cgc32->cmd, sizeof(cgc->cmd)) ||
-	    get_user(data, &cgc32->buffer) ||
-	    put_user(compat_ptr(data), &cgc->buffer) ||
-	    copy_in_user(&cgc->buflen, &cgc32->buflen,
-			 (sizeof(unsigned int) + sizeof(int))) ||
-	    get_user(data, &cgc32->sense) ||
-	    put_user(compat_ptr(data), &cgc->sense) ||
-	    get_user(dir, &cgc32->data_direction) ||
-	    put_user(dir, &cgc->data_direction) ||
-	    get_user(itmp, &cgc32->quiet) ||
-	    put_user(itmp, &cgc->quiet) ||
-	    get_user(itmp, &cgc32->timeout) ||
-	    put_user(itmp, &cgc->timeout) ||
-	    get_user(data, &cgc32->reserved[0]) ||
-	    put_user(compat_ptr(data), &cgc->reserved[0]))
-		return -EFAULT;
-
-	return __blkdev_driver_ioctl(bdev, mode, cmd, (unsigned long)cgc);
-}
-
-struct compat_blkpg_ioctl_arg {
-	compat_int_t op;
-	compat_int_t flags;
-	compat_int_t datalen;
-	compat_caddr_t data;
-};
-
-static int compat_blkpg_ioctl(struct block_device *bdev, fmode_t mode,
-		unsigned int cmd, struct compat_blkpg_ioctl_arg __user *ua32)
-{
-	struct blkpg_ioctl_arg __user *a = compat_alloc_user_space(sizeof(*a));
-	compat_caddr_t udata;
-	compat_int_t n;
-	int err;
-
-	err = get_user(n, &ua32->op);
-	err |= put_user(n, &a->op);
-	err |= get_user(n, &ua32->flags);
-	err |= put_user(n, &a->flags);
-	err |= get_user(n, &ua32->datalen);
-	err |= put_user(n, &a->datalen);
-	err |= get_user(udata, &ua32->data);
-	err |= put_user(compat_ptr(udata), &a->data);
-	if (err)
-		return err;
-
-	return blkdev_ioctl(bdev, mode, cmd, (unsigned long)a);
-}
-
-#define BLKBSZGET_32		_IOR(0x12, 112, int)
-#define BLKBSZSET_32		_IOW(0x12, 113, int)
-#define BLKGETSIZE64_32		_IOR(0x12, 114, int)
-
-static int compat_blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
-			unsigned cmd, unsigned long arg)
-{
-	switch (cmd) {
-	case HDIO_GET_UNMASKINTR:
-	case HDIO_GET_MULTCOUNT:
-	case HDIO_GET_KEEPSETTINGS:
-	case HDIO_GET_32BIT:
-	case HDIO_GET_NOWERR:
-	case HDIO_GET_DMA:
-	case HDIO_GET_NICE:
-	case HDIO_GET_WCACHE:
-	case HDIO_GET_ACOUSTIC:
-	case HDIO_GET_ADDRESS:
-	case HDIO_GET_BUSSTATE:
-		return compat_hdio_ioctl(bdev, mode, cmd, arg);
-	case CDROMREADAUDIO:
-		return compat_cdrom_read_audio(bdev, mode, cmd, arg);
-	case CDROM_SEND_PACKET:
-		return compat_cdrom_generic_command(bdev, mode, cmd, arg);
-
-	/*
-	 * No handler required for the ones below, we just need to
-	 * convert arg to a 64 bit pointer.
-	 */
-	case BLKSECTSET:
-	/*
-	 * 0x03 -- HD/IDE ioctl's used by hdparm and friends.
-	 *         Some need translations, these do not.
-	 */
-	case HDIO_GET_IDENTITY:
-	case HDIO_DRIVE_TASK:
-	case HDIO_DRIVE_CMD:
-	/* 0x330 is reserved -- it used to be HDIO_GETGEO_BIG */
-	case 0x330:
-	/* CDROM stuff */
-	case CDROMPAUSE:
-	case CDROMRESUME:
-	case CDROMPLAYMSF:
-	case CDROMPLAYTRKIND:
-	case CDROMREADTOCHDR:
-	case CDROMREADTOCENTRY:
-	case CDROMSTOP:
-	case CDROMSTART:
-	case CDROMEJECT:
-	case CDROMVOLCTRL:
-	case CDROMSUBCHNL:
-	case CDROMMULTISESSION:
-	case CDROM_GET_MCN:
-	case CDROMRESET:
-	case CDROMVOLREAD:
-	case CDROMSEEK:
-	case CDROMPLAYBLK:
-	case CDROMCLOSETRAY:
-	case CDROM_DISC_STATUS:
-	case CDROM_CHANGER_NSLOTS:
-	case CDROM_GET_CAPABILITY:
-	/* Ignore cdrom.h about these next 5 ioctls, they absolutely do
-	 * not take a struct cdrom_read, instead they take a struct cdrom_msf
-	 * which is compatible.
-	 */
-	case CDROMREADMODE2:
-	case CDROMREADMODE1:
-	case CDROMREADRAW:
-	case CDROMREADCOOKED:
-	case CDROMREADALL:
-	/* DVD ioctls */
-	case DVD_READ_STRUCT:
-	case DVD_WRITE_STRUCT:
-	case DVD_AUTH:
-		arg = (unsigned long)compat_ptr(arg);
-	/* These intepret arg as an unsigned long, not as a pointer,
-	 * so we must not do compat_ptr() conversion. */
-	case HDIO_SET_MULTCOUNT:
-	case HDIO_SET_UNMASKINTR:
-	case HDIO_SET_KEEPSETTINGS:
-	case HDIO_SET_32BIT:
-	case HDIO_SET_NOWERR:
-	case HDIO_SET_DMA:
-	case HDIO_SET_PIO_MODE:
-	case HDIO_SET_NICE:
-	case HDIO_SET_WCACHE:
-	case HDIO_SET_ACOUSTIC:
-	case HDIO_SET_BUSSTATE:
-	case HDIO_SET_ADDRESS:
-	case CDROMEJECT_SW:
-	case CDROM_SET_OPTIONS:
-	case CDROM_CLEAR_OPTIONS:
-	case CDROM_SELECT_SPEED:
-	case CDROM_SELECT_DISC:
-	case CDROM_MEDIA_CHANGED:
-	case CDROM_DRIVE_STATUS:
-	case CDROM_LOCKDOOR:
-	case CDROM_DEBUG:
-		break;
-	default:
-		/* unknown ioctl number */
-		return -ENOIOCTLCMD;
-	}
-
-	return __blkdev_driver_ioctl(bdev, mode, cmd, arg);
-}
-
-/* Most of the generic ioctls are handled in the normal fallback path.
-   This assumes the blkdev's low level compat_ioctl always returns
-   ENOIOCTLCMD for unknown ioctls. */
-long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
-{
-	int ret = -ENOIOCTLCMD;
-	struct inode *inode = file->f_mapping->host;
-	struct block_device *bdev = inode->i_bdev;
-	struct gendisk *disk = bdev->bd_disk;
-	fmode_t mode = file->f_mode;
-	loff_t size;
-	unsigned int max_sectors;
-
-	/*
-	 * O_NDELAY can be altered using fcntl(.., F_SETFL, ..), so we have
-	 * to updated it before every ioctl.
-	 */
-	if (file->f_flags & O_NDELAY)
-		mode |= FMODE_NDELAY;
-	else
-		mode &= ~FMODE_NDELAY;
-
-	switch (cmd) {
-	case HDIO_GETGEO:
-		return compat_hdio_getgeo(disk, bdev, compat_ptr(arg));
-	case BLKPBSZGET:
-		return compat_put_uint(arg, bdev_physical_block_size(bdev));
-	case BLKIOMIN:
-		return compat_put_uint(arg, bdev_io_min(bdev));
-	case BLKIOOPT:
-		return compat_put_uint(arg, bdev_io_opt(bdev));
-	case BLKALIGNOFF:
-		return compat_put_int(arg, bdev_alignment_offset(bdev));
-	case BLKDISCARDZEROES:
-		return compat_put_uint(arg, 0);
-	case BLKFLSBUF:
-	case BLKROSET:
-	case BLKDISCARD:
-	case BLKSECDISCARD:
-	case BLKZEROOUT:
-	/*
-	 * the ones below are implemented in blkdev_locked_ioctl,
-	 * but we call blkdev_ioctl, which gets the lock for us
-	 */
-	case BLKRRPART:
-	case BLKREPORTZONE:
-	case BLKRESETZONE:
-	case BLKOPENZONE:
-	case BLKCLOSEZONE:
-	case BLKFINISHZONE:
-	case BLKGETZONESZ:
-	case BLKGETNRZONES:
-		return blkdev_ioctl(bdev, mode, cmd,
-				(unsigned long)compat_ptr(arg));
-	case BLKBSZSET_32:
-		return blkdev_ioctl(bdev, mode, BLKBSZSET,
-				(unsigned long)compat_ptr(arg));
-	case BLKPG:
-		return compat_blkpg_ioctl(bdev, mode, cmd, compat_ptr(arg));
-	case BLKRAGET:
-	case BLKFRAGET:
-		if (!arg)
-			return -EINVAL;
-		return compat_put_long(arg,
-			       (bdev->bd_bdi->ra_pages * PAGE_SIZE) / 512);
-	case BLKROGET: /* compatible */
-		return compat_put_int(arg, bdev_read_only(bdev) != 0);
-	case BLKBSZGET_32: /* get the logical block size (cf. BLKSSZGET) */
-		return compat_put_int(arg, block_size(bdev));
-	case BLKSSZGET: /* get block device hardware sector size */
-		return compat_put_int(arg, bdev_logical_block_size(bdev));
-	case BLKSECTGET:
-		max_sectors = min_t(unsigned int, USHRT_MAX,
-				    queue_max_sectors(bdev_get_queue(bdev)));
-		return compat_put_ushort(arg, max_sectors);
-	case BLKROTATIONAL:
-		return compat_put_ushort(arg,
-					 !blk_queue_nonrot(bdev_get_queue(bdev)));
-	case BLKRASET: /* compatible, but no compat_ptr (!) */
-	case BLKFRASET:
-		if (!capable(CAP_SYS_ADMIN))
-			return -EACCES;
-		bdev->bd_bdi->ra_pages = (arg * 512) / PAGE_SIZE;
-		return 0;
-	case BLKGETSIZE:
-		size = i_size_read(bdev->bd_inode);
-		if ((size >> 9) > ~0UL)
-			return -EFBIG;
-		return compat_put_ulong(arg, size >> 9);
-
-	case BLKGETSIZE64_32:
-		return compat_put_u64(arg, i_size_read(bdev->bd_inode));
-
-	case BLKTRACESETUP32:
-	case BLKTRACESTART: /* compatible */
-	case BLKTRACESTOP:  /* compatible */
-	case BLKTRACETEARDOWN: /* compatible */
-		ret = blk_trace_ioctl(bdev, cmd, compat_ptr(arg));
-		return ret;
-	case IOC_PR_REGISTER:
-	case IOC_PR_RESERVE:
-	case IOC_PR_RELEASE:
-	case IOC_PR_PREEMPT:
-	case IOC_PR_PREEMPT_ABORT:
-	case IOC_PR_CLEAR:
-		return blkdev_ioctl(bdev, mode, cmd,
-				(unsigned long)compat_ptr(arg));
-	default:
-		if (disk->fops->compat_ioctl)
-			ret = disk->fops->compat_ioctl(bdev, mode, cmd, arg);
-		if (ret == -ENOIOCTLCMD)
-			ret = compat_blkdev_driver_ioctl(bdev, mode, cmd, arg);
-		return ret;
-	}
-}

block/ioctl.c

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/capability.h>
+#include <linux/compat.h>
 #include <linux/blkdev.h>
 #include <linux/export.h>
 #include <linux/gfp.h>
@@ -11,12 +12,12 @@
 #include <linux/pr.h>
 #include <linux/uaccess.h>
 
-static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user *arg)
+static int blkpg_do_ioctl(struct block_device *bdev,
+			  struct blkpg_partition __user *upart, int op)
 {
 	struct block_device *bdevp;
 	struct gendisk *disk;
 	struct hd_struct *part, *lpart;
-	struct blkpg_ioctl_arg a;
 	struct blkpg_partition p;
 	struct disk_part_iter piter;
 	long long start, length;
@@ -24,9 +25,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
-	if (copy_from_user(&a, arg, sizeof(struct blkpg_ioctl_arg)))
+	if (copy_from_user(&p, upart, sizeof(struct blkpg_partition)))
-		return -EFAULT;
-	if (copy_from_user(&p, a.data, sizeof(struct blkpg_partition)))
 		return -EFAULT;
 	disk = bdev->bd_disk;
 	if (bdev != bdev->bd_contains)
@@ -34,7 +33,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
 	partno = p.pno;
 	if (partno <= 0)
 		return -EINVAL;
-	switch (a.op) {
+	switch (op) {
 		case BLKPG_ADD_PARTITION:
 			start = p.start >> 9;
 			length = p.length >> 9;
@@ -155,6 +154,39 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
 	}
 }
 
+static int blkpg_ioctl(struct block_device *bdev,
+		       struct blkpg_ioctl_arg __user *arg)
+{
+	struct blkpg_partition __user *udata;
+	int op;
+
+	if (get_user(op, &arg->op) || get_user(udata, &arg->data))
+		return -EFAULT;
+
+	return blkpg_do_ioctl(bdev, udata, op);
+}
+
+#ifdef CONFIG_COMPAT
+struct compat_blkpg_ioctl_arg {
+	compat_int_t op;
+	compat_int_t flags;
+	compat_int_t datalen;
+	compat_caddr_t data;
+};
+
+static int compat_blkpg_ioctl(struct block_device *bdev,
+			      struct compat_blkpg_ioctl_arg __user *arg)
+{
+	compat_caddr_t udata;
+	int op;
+
+	if (get_user(op, &arg->op) || get_user(udata, &arg->data))
+		return -EFAULT;
+
+	return blkpg_do_ioctl(bdev, compat_ptr(udata), op);
+}
+#endif
+
 static int blkdev_reread_part(struct block_device *bdev)
 {
 	int ret;
@@ -238,36 +270,48 @@ static int blk_ioctl_zeroout(struct block_device *bdev, fmode_t mode,
 			BLKDEV_ZERO_NOUNMAP);
 }
 
-static int put_ushort(unsigned long arg, unsigned short val)
+static int put_ushort(unsigned short __user *argp, unsigned short val)
 {
-	return put_user(val, (unsigned short __user *)arg);
+	return put_user(val, argp);
 }
 
-static int put_int(unsigned long arg, int val)
+static int put_int(int __user *argp, int val)
 {
-	return put_user(val, (int __user *)arg);
+	return put_user(val, argp);
 }
 
-static int put_uint(unsigned long arg, unsigned int val)
+static int put_uint(unsigned int __user *argp, unsigned int val)
 {
-	return put_user(val, (unsigned int __user *)arg);
+	return put_user(val, argp);
 }
 
-static int put_long(unsigned long arg, long val)
+static int put_long(long __user *argp, long val)
 {
-	return put_user(val, (long __user *)arg);
+	return put_user(val, argp);
 }
 
-static int put_ulong(unsigned long arg, unsigned long val)
+static int put_ulong(unsigned long __user *argp, unsigned long val)
 {
-	return put_user(val, (unsigned long __user *)arg);
+	return put_user(val, argp);
 }
 
-static int put_u64(unsigned long arg, u64 val)
+static int put_u64(u64 __user *argp, u64 val)
 {
-	return put_user(val, (u64 __user *)arg);
+	return put_user(val, argp);
 }
 
+#ifdef CONFIG_COMPAT
+static int compat_put_long(compat_long_t *argp, long val)
+{
+	return put_user(val, argp);
+}
+
+static int compat_put_ulong(compat_ulong_t *argp, compat_ulong_t val)
+{
+	return put_user(val, argp);
+}
+#endif
+
 int __blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
 			unsigned cmd, unsigned long arg)
 {
@@ -285,6 +329,26 @@ int __blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
  */
 EXPORT_SYMBOL_GPL(__blkdev_driver_ioctl);
 
+#ifdef CONFIG_COMPAT
+/*
+ * This is the equivalent of compat_ptr_ioctl(), to be used by block
+ * drivers that implement only commands that are completely compatible
+ * between 32-bit and 64-bit user space
+ */
+int blkdev_compat_ptr_ioctl(struct block_device *bdev, fmode_t mode,
+			unsigned cmd, unsigned long arg)
+{
+	struct gendisk *disk = bdev->bd_disk;
+
+	if (disk->fops->ioctl)
+		return disk->fops->ioctl(bdev, mode, cmd,
+					 (unsigned long)compat_ptr(arg));
+
+	return -ENOIOCTLCMD;
+}
+EXPORT_SYMBOL(blkdev_compat_ptr_ioctl);
+#endif
+
 static int blkdev_pr_register(struct block_device *bdev,
 		struct pr_registration __user *arg)
 {
@@ -455,6 +519,45 @@ static int blkdev_getgeo(struct block_device *bdev,
 	return 0;
 }
 
+#ifdef CONFIG_COMPAT
+struct compat_hd_geometry {
+	unsigned char heads;
+	unsigned char sectors;
+	unsigned short cylinders;
+	u32 start;
+};
+
+static int compat_hdio_getgeo(struct block_device *bdev,
+			      struct compat_hd_geometry __user *ugeo)
+{
+	struct gendisk *disk = bdev->bd_disk;
+	struct hd_geometry geo;
+	int ret;
+
+	if (!ugeo)
+		return -EINVAL;
+	if (!disk->fops->getgeo)
+		return -ENOTTY;
+
+	memset(&geo, 0, sizeof(geo));
+	/*
+	 * We need to set the startsect first, the driver may
+	 * want to override it.
+	 */
+	geo.start = get_start_sect(bdev);
+	ret = disk->fops->getgeo(bdev, &geo);
+	if (ret)
+		return ret;
+
+	ret = copy_to_user(ugeo, &geo, 4);
+	ret |= put_user(geo.start, &ugeo->start);
+	if (ret)
+		ret = -EFAULT;
+
+	return ret;
+}
+#endif
+
 /* set the logical block size */
 static int blkdev_bszset(struct block_device *bdev, fmode_t mode,
 		int __user *argp)
@@ -481,13 +584,13 @@ static int blkdev_bszset(struct block_device *bdev, fmode_t mode,
 }
 
 /*
- * always keep this in sync with compat_blkdev_ioctl()
+ * Common commands that are handled the same way on native and compat
+ * user space. Note the separate arg/argp parameters that are needed
+ * to deal with the compat_ptr() conversion.
  */
-int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
+static int blkdev_common_ioctl(struct block_device *bdev, fmode_t mode,
-			unsigned long arg)
+				unsigned cmd, unsigned long arg, void __user *argp)
 {
-	void __user *argp = (void __user *)arg;
-	loff_t size;
 	unsigned int max_sectors;
 
 	switch (cmd) {
@@ -510,60 +613,39 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
 	case BLKFINISHZONE:
 		return blkdev_zone_mgmt_ioctl(bdev, mode, cmd, arg);
 	case BLKGETZONESZ:
-		return put_uint(arg, bdev_zone_sectors(bdev));
+		return put_uint(argp, bdev_zone_sectors(bdev));
 	case BLKGETNRZONES:
-		return put_uint(arg, blkdev_nr_zones(bdev->bd_disk));
+		return put_uint(argp, blkdev_nr_zones(bdev->bd_disk));
-	case HDIO_GETGEO:
-		return blkdev_getgeo(bdev, argp);
-	case BLKRAGET:
-	case BLKFRAGET:
-		if (!arg)
-			return -EINVAL;
-		return put_long(arg, (bdev->bd_bdi->ra_pages*PAGE_SIZE) / 512);
 	case BLKROGET:
-		return put_int(arg, bdev_read_only(bdev) != 0);
+		return put_int(argp, bdev_read_only(bdev) != 0);
-	case BLKBSZGET: /* get block device soft block size (cf. BLKSSZGET) */
-		return put_int(arg, block_size(bdev));
 	case BLKSSZGET: /* get block device logical block size */
-		return put_int(arg, bdev_logical_block_size(bdev));
+		return put_int(argp, bdev_logical_block_size(bdev));
 	case BLKPBSZGET: /* get block device physical block size */
-		return put_uint(arg, bdev_physical_block_size(bdev));
+		return put_uint(argp, bdev_physical_block_size(bdev));
 	case BLKIOMIN:
-		return put_uint(arg, bdev_io_min(bdev));
+		return put_uint(argp, bdev_io_min(bdev));
 	case BLKIOOPT:
-		return put_uint(arg, bdev_io_opt(bdev));
+		return put_uint(argp, bdev_io_opt(bdev));
 	case BLKALIGNOFF:
-		return put_int(arg, bdev_alignment_offset(bdev));
+		return put_int(argp, bdev_alignment_offset(bdev));
 	case BLKDISCARDZEROES:
-		return put_uint(arg, 0);
+		return put_uint(argp, 0);
 	case BLKSECTGET:
 		max_sectors = min_t(unsigned int, USHRT_MAX,
 				    queue_max_sectors(bdev_get_queue(bdev)));
-		return put_ushort(arg, max_sectors);
+		return put_ushort(argp, max_sectors);
 	case BLKROTATIONAL:
-		return put_ushort(arg, !blk_queue_nonrot(bdev_get_queue(bdev)));
+		return put_ushort(argp, !blk_queue_nonrot(bdev_get_queue(bdev)));
 	case BLKRASET:
 	case BLKFRASET:
 		if(!capable(CAP_SYS_ADMIN))
 			return -EACCES;
 		bdev->bd_bdi->ra_pages = (arg * 512) / PAGE_SIZE;
 		return 0;
-	case BLKBSZSET:
-		return blkdev_bszset(bdev, mode, argp);
-	case BLKPG:
-		return blkpg_ioctl(bdev, argp);
 	case BLKRRPART:
 		return blkdev_reread_part(bdev);
-	case BLKGETSIZE:
-		size = i_size_read(bdev->bd_inode);
-		if ((size >> 9) > ~0UL)
-			return -EFBIG;
-		return put_ulong(arg, size >> 9);
-	case BLKGETSIZE64:
-		return put_u64(arg, i_size_read(bdev->bd_inode));
 	case BLKTRACESTART:
 	case BLKTRACESTOP:
-	case BLKTRACESETUP:
 	case BLKTRACETEARDOWN:
 		return blk_trace_ioctl(bdev, cmd, argp);
 	case IOC_PR_REGISTER:
@@ -579,7 +661,132 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
 	case IOC_PR_CLEAR:
 		return blkdev_pr_clear(bdev, argp);
 	default:
-		return __blkdev_driver_ioctl(bdev, mode, cmd, arg);
+		return -ENOIOCTLCMD;
 	}
 }
-EXPORT_SYMBOL_GPL(blkdev_ioctl);
+
+/*
+ * Always keep this in sync with compat_blkdev_ioctl()
+ * to handle all incompatible commands in both functions.
+ *
+ * New commands must be compatible and go into blkdev_common_ioctl
+ */
+int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
+			unsigned long arg)
+{
+	int ret;
+	loff_t size;
+	void __user *argp = (void __user *)arg;
+
+	switch (cmd) {
+	/* These need separate implementations for the data structure */
+	case HDIO_GETGEO:
+		return blkdev_getgeo(bdev, argp);
+	case BLKPG:
+		return blkpg_ioctl(bdev, argp);
+
+	/* Compat mode returns 32-bit data instead of 'long' */
+	case BLKRAGET:
+	case BLKFRAGET:
+		if (!argp)
+			return -EINVAL;
+		return put_long(argp, (bdev->bd_bdi->ra_pages*PAGE_SIZE) / 512);
+	case BLKGETSIZE:
+		size = i_size_read(bdev->bd_inode);
+		if ((size >> 9) > ~0UL)
+			return -EFBIG;
+		return put_ulong(argp, size >> 9);
+
+	/* The data is compatible, but the command number is different */
+	case BLKBSZGET: /* get block device soft block size (cf. BLKSSZGET) */
+		return put_int(argp, block_size(bdev));
+	case BLKBSZSET:
+		return blkdev_bszset(bdev, mode, argp);
+	case BLKGETSIZE64:
+		return put_u64(argp, i_size_read(bdev->bd_inode));
+
+	/* Incompatible alignment on i386 */
+	case BLKTRACESETUP:
+		return blk_trace_ioctl(bdev, cmd, argp);
+	default:
+		break;
+	}
+
+	ret = blkdev_common_ioctl(bdev, mode, cmd, arg, argp);
+	if (ret == -ENOIOCTLCMD)
+		return __blkdev_driver_ioctl(bdev, mode, cmd, arg);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(blkdev_ioctl); /* for /dev/raw */
+
+#ifdef CONFIG_COMPAT
+
+#define BLKBSZGET_32		_IOR(0x12, 112, int)
+#define BLKBSZSET_32		_IOW(0x12, 113, int)
+#define BLKGETSIZE64_32		_IOR(0x12, 114, int)
+
+/* Most of the generic ioctls are handled in the normal fallback path.
+   This assumes the blkdev's low level compat_ioctl always returns
+   ENOIOCTLCMD for unknown ioctls. */
+long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
+{
+	int ret;
+	void __user *argp = compat_ptr(arg);
+	struct inode *inode = file->f_mapping->host;
+	struct block_device *bdev = inode->i_bdev;
+	struct gendisk *disk = bdev->bd_disk;
+	fmode_t mode = file->f_mode;
+	loff_t size;
+
+	/*
+	 * O_NDELAY can be altered using fcntl(.., F_SETFL, ..), so we have
+	 * to updated it before every ioctl.
+	 */
+	if (file->f_flags & O_NDELAY)
+		mode |= FMODE_NDELAY;
+	else
+		mode &= ~FMODE_NDELAY;
+
+	switch (cmd) {
+	/* These need separate implementations for the data structure */
+	case HDIO_GETGEO:
+		return compat_hdio_getgeo(bdev, argp);
+	case BLKPG:
+		return compat_blkpg_ioctl(bdev, argp);
+
+	/* Compat mode returns 32-bit data instead of 'long' */
+	case BLKRAGET:
+	case BLKFRAGET:
+		if (!argp)
+			return -EINVAL;
+		return compat_put_long(argp,
+			       (bdev->bd_bdi->ra_pages * PAGE_SIZE) / 512);
+	case BLKGETSIZE:
+		size = i_size_read(bdev->bd_inode);
+		if ((size >> 9) > ~0UL)
+			return -EFBIG;
+		return compat_put_ulong(argp, size >> 9);
+
+	/* The data is compatible, but the command number is different */
+	case BLKBSZGET_32: /* get the logical block size (cf. BLKSSZGET) */
+		return put_int(argp, bdev_logical_block_size(bdev));
+	case BLKBSZSET_32:
+		return blkdev_bszset(bdev, mode, argp);
+	case BLKGETSIZE64_32:
+		return put_u64(argp, i_size_read(bdev->bd_inode));
+
+	/* Incompatible alignment on i386 */
+	case BLKTRACESETUP32:
+		return blk_trace_ioctl(bdev, cmd, argp);
+	default:
+		break;
+	}
+
+	ret = blkdev_common_ioctl(bdev, mode, cmd, arg, argp);
+	if (ret == -ENOIOCTLCMD && disk->fops->compat_ioctl)
+		ret = disk->fops->compat_ioctl(bdev, mode, cmd, arg);
+
+	return ret;
+}
+#endif

block/scsi_ioctl.c

@@ -20,6 +20,7 @@
 #include <scsi/scsi.h>
 #include <scsi/scsi_ioctl.h>
 #include <scsi/scsi_cmnd.h>
+#include <scsi/sg.h>
 
 struct blk_cmd_filter {
 	unsigned long read_ok[BLK_SCSI_CMD_PER_LONG];
@@ -550,34 +551,6 @@ static inline int blk_send_start_stop(struct request_queue *q,
 	return __blk_send_generic(q, bd_disk, GPCMD_START_STOP_UNIT, data);
 }
 
-#ifdef CONFIG_COMPAT
-struct compat_sg_io_hdr {
-	compat_int_t interface_id;	/* [i] 'S' for SCSI generic (required) */
-	compat_int_t dxfer_direction;	/* [i] data transfer direction  */
-	unsigned char cmd_len;		/* [i] SCSI command length ( <= 16 bytes) */
-	unsigned char mx_sb_len;	/* [i] max length to write to sbp */
-	unsigned short iovec_count;	/* [i] 0 implies no scatter gather */
-	compat_uint_t dxfer_len;	/* [i] byte count of data transfer */
-	compat_uint_t dxferp;		/* [i], [*io] points to data transfer memory
-						or scatter gather list */
-	compat_uptr_t cmdp;		/* [i], [*i] points to command to perform */
-	compat_uptr_t sbp;		/* [i], [*o] points to sense_buffer memory */
-	compat_uint_t timeout;		/* [i] MAX_UINT->no timeout (unit: millisec) */
-	compat_uint_t flags;		/* [i] 0 -> default, see SG_FLAG... */
-	compat_int_t pack_id;		/* [i->o] unused internally (normally) */
-	compat_uptr_t usr_ptr;		/* [i->o] unused internally */
-	unsigned char status;		/* [o] scsi status */
-	unsigned char masked_status;	/* [o] shifted, masked scsi status */
-	unsigned char msg_status;	/* [o] messaging level data (optional) */
-	unsigned char sb_len_wr;	/* [o] byte count actually written to sbp */
-	unsigned short host_status;	/* [o] errors from host adapter */
-	unsigned short driver_status;	/* [o] errors from software driver */
-	compat_int_t resid;		/* [o] dxfer_len - actual_transferred */
-	compat_uint_t duration;		/* [o] time taken by cmd (unit: millisec) */
-	compat_uint_t info;		/* [o] auxiliary information */
-};
-#endif
-
 int put_sg_io_hdr(const struct sg_io_hdr *hdr, void __user *argp)
 {
 #ifdef CONFIG_COMPAT
@@ -666,6 +639,136 @@ int get_sg_io_hdr(struct sg_io_hdr *hdr, const void __user *argp)
 }
 EXPORT_SYMBOL(get_sg_io_hdr);
 
+#ifdef CONFIG_COMPAT
+struct compat_cdrom_generic_command {
+	unsigned char	cmd[CDROM_PACKET_SIZE];
+	compat_caddr_t	buffer;
+	compat_uint_t	buflen;
+	compat_int_t	stat;
+	compat_caddr_t	sense;
+	unsigned char	data_direction;
+	compat_int_t	quiet;
+	compat_int_t	timeout;
+	compat_caddr_t	reserved[1];
+};
+#endif
+
+static int scsi_get_cdrom_generic_arg(struct cdrom_generic_command *cgc,
+				      const void __user *arg)
+{
+#ifdef CONFIG_COMPAT
+	if (in_compat_syscall()) {
+		struct compat_cdrom_generic_command cgc32;
+
+		if (copy_from_user(&cgc32, arg, sizeof(cgc32)))
+			return -EFAULT;
+
+		*cgc = (struct cdrom_generic_command) {
+			.buffer		= compat_ptr(cgc32.buffer),
+			.buflen		= cgc32.buflen,
+			.stat		= cgc32.stat,
+			.sense		= compat_ptr(cgc32.sense),
+			.data_direction	= cgc32.data_direction,
+			.quiet		= cgc32.quiet,
+			.timeout	= cgc32.timeout,
+			.reserved[0]	= compat_ptr(cgc32.reserved[0]),
+		};
+		memcpy(&cgc->cmd, &cgc32.cmd, CDROM_PACKET_SIZE);
+		return 0;
+	}
+#endif
+	if (copy_from_user(cgc, arg, sizeof(*cgc)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int scsi_put_cdrom_generic_arg(const struct cdrom_generic_command *cgc,
+				      void __user *arg)
+{
+#ifdef CONFIG_COMPAT
+	if (in_compat_syscall()) {
+		struct compat_cdrom_generic_command cgc32 = {
+			.buffer		= (uintptr_t)(cgc->buffer),
+			.buflen		= cgc->buflen,
+			.stat		= cgc->stat,
+			.sense		= (uintptr_t)(cgc->sense),
+			.data_direction	= cgc->data_direction,
+			.quiet		= cgc->quiet,
+			.timeout	= cgc->timeout,
+			.reserved[0]	= (uintptr_t)(cgc->reserved[0]),
+		};
+		memcpy(&cgc32.cmd, &cgc->cmd, CDROM_PACKET_SIZE);
+
+		if (copy_to_user(arg, &cgc32, sizeof(cgc32)))
+			return -EFAULT;
+
+		return 0;
+	}
+#endif
+	if (copy_to_user(arg, cgc, sizeof(*cgc)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int scsi_cdrom_send_packet(struct request_queue *q,
+				  struct gendisk *bd_disk,
+				  fmode_t mode, void __user *arg)
+{
+	struct cdrom_generic_command cgc;
+	struct sg_io_hdr hdr;
+	int err;
+
+	err = scsi_get_cdrom_generic_arg(&cgc, arg);
+	if (err)
+		return err;
+
+	cgc.timeout = clock_t_to_jiffies(cgc.timeout);
+	memset(&hdr, 0, sizeof(hdr));
+	hdr.interface_id = 'S';
+	hdr.cmd_len = sizeof(cgc.cmd);
+	hdr.dxfer_len = cgc.buflen;
+	switch (cgc.data_direction) {
+		case CGC_DATA_UNKNOWN:
+			hdr.dxfer_direction = SG_DXFER_UNKNOWN;
+			break;
+		case CGC_DATA_WRITE:
+			hdr.dxfer_direction = SG_DXFER_TO_DEV;
+			break;
+		case CGC_DATA_READ:
+			hdr.dxfer_direction = SG_DXFER_FROM_DEV;
+			break;
+		case CGC_DATA_NONE:
+			hdr.dxfer_direction = SG_DXFER_NONE;
+			break;
+		default:
+			return -EINVAL;
+	}
+
+	hdr.dxferp = cgc.buffer;
+	hdr.sbp = cgc.sense;
+	if (hdr.sbp)
+		hdr.mx_sb_len = sizeof(struct request_sense);
+	hdr.timeout = jiffies_to_msecs(cgc.timeout);
+	hdr.cmdp = ((struct cdrom_generic_command __user*) arg)->cmd;
+	hdr.cmd_len = sizeof(cgc.cmd);
+
+	err = sg_io(q, bd_disk, &hdr, mode);
+	if (err == -EFAULT)
+		return -EFAULT;
+
+	if (hdr.status)
+		return -EIO;
+
+	cgc.stat = err;
+	cgc.buflen = hdr.resid;
+	if (scsi_put_cdrom_generic_arg(&cgc, arg))
+		return -EFAULT;
+
+	return err;
+}
+
 int scsi_cmd_ioctl(struct request_queue *q, struct gendisk *bd_disk, fmode_t mode,
 		   unsigned int cmd, void __user *arg)
 {
@@ -716,60 +819,9 @@ int scsi_cmd_ioctl(struct request_queue *q, struct gendisk *bd_disk, fmode_t mod
 				err = -EFAULT;
 			break;
 		}
-		case CDROM_SEND_PACKET: {
+		case CDROM_SEND_PACKET:
-			struct cdrom_generic_command cgc;
+			err = scsi_cdrom_send_packet(q, bd_disk, mode, arg);
-			struct sg_io_hdr hdr;
-
-			err = -EFAULT;
-			if (copy_from_user(&cgc, arg, sizeof(cgc)))
-				break;
-			cgc.timeout = clock_t_to_jiffies(cgc.timeout);
-			memset(&hdr, 0, sizeof(hdr));
-			hdr.interface_id = 'S';
-			hdr.cmd_len = sizeof(cgc.cmd);
-			hdr.dxfer_len = cgc.buflen;
-			err = 0;
-			switch (cgc.data_direction) {
-				case CGC_DATA_UNKNOWN:
-					hdr.dxfer_direction = SG_DXFER_UNKNOWN;
-					break;
-				case CGC_DATA_WRITE:
-					hdr.dxfer_direction = SG_DXFER_TO_DEV;
-					break;
-				case CGC_DATA_READ:
-					hdr.dxfer_direction = SG_DXFER_FROM_DEV;
-					break;
-				case CGC_DATA_NONE:
-					hdr.dxfer_direction = SG_DXFER_NONE;
-					break;
-				default:
-					err = -EINVAL;
-			}
-			if (err)
-				break;
-
-			hdr.dxferp = cgc.buffer;
-			hdr.sbp = cgc.sense;
-			if (hdr.sbp)
-				hdr.mx_sb_len = sizeof(struct request_sense);
-			hdr.timeout = jiffies_to_msecs(cgc.timeout);
-			hdr.cmdp = ((struct cdrom_generic_command __user*) arg)->cmd;
-			hdr.cmd_len = sizeof(cgc.cmd);
-
-			err = sg_io(q, bd_disk, &hdr, mode);
-			if (err == -EFAULT)
-				break;
-
-			if (hdr.status)
-				err = -EIO;
-
-			cgc.stat = err;
-			cgc.buflen = hdr.resid;
-			if (copy_to_user(arg, &cgc, sizeof(cgc)))
-				err = -EFAULT;
-
 			break;
-		}
 
 		/*
 		 * old junk scsi send command ioctl

drivers/ata/libata-scsi.c

@@ -17,6 +17,7 @@
  *  - http://www.t13.org/
  */
 
+#include <linux/compat.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/blkdev.h>
@@ -761,6 +762,10 @@ static int ata_ioc32(struct ata_port *ap)
 	return 0;
 }
 
+/*
+ * This handles both native and compat commands, so anything added
+ * here must have a compatible argument, or check in_compat_syscall()
+ */
 int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *scsidev,
 		     unsigned int cmd, void __user *arg)
 {
@@ -773,6 +778,10 @@ int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *scsidev,
 		spin_lock_irqsave(ap->lock, flags);
 		val = ata_ioc32(ap);
 		spin_unlock_irqrestore(ap->lock, flags);
+#ifdef CONFIG_COMPAT
+		if (in_compat_syscall())
+			return put_user(val, (compat_ulong_t __user *)arg);
+#endif
 		return put_user(val, (unsigned long __user *)arg);
 
 	case HDIO_SET_32BIT:

drivers/base/attribute_container.c

@@ -236,6 +236,109 @@ attribute_container_remove_device(struct device *dev,
 	mutex_unlock(&attribute_container_mutex);
 }
 
+static int
+do_attribute_container_device_trigger_safe(struct device *dev,
+					   struct attribute_container *cont,
+					   int (*fn)(struct attribute_container *,
+						     struct device *, struct device *),
+					   int (*undo)(struct attribute_container *,
+						       struct device *, struct device *))
+{
+	int ret;
+	struct internal_container *ic, *failed;
+	struct klist_iter iter;
+
+	if (attribute_container_no_classdevs(cont))
+		return fn(cont, dev, NULL);
+
+	klist_for_each_entry(ic, &cont->containers, node, &iter) {
+		if (dev == ic->classdev.parent) {
+			ret = fn(cont, dev, &ic->classdev);
+			if (ret) {
+				failed = ic;
+				klist_iter_exit(&iter);
+				goto fail;
+			}
+		}
+	}
+	return 0;
+
+fail:
+	if (!undo)
+		return ret;
+
+	/* Attempt to undo the work partially done. */
+	klist_for_each_entry(ic, &cont->containers, node, &iter) {
+		if (ic == failed) {
+			klist_iter_exit(&iter);
+			break;
+		}
+		if (dev == ic->classdev.parent)
+			undo(cont, dev, &ic->classdev);
+	}
+	return ret;
+}
+
+/**
+ * attribute_container_device_trigger_safe - execute a trigger for each
+ * matching classdev or fail all of them.
+ *
+ * @dev:  The generic device to run the trigger for
+ * @fn	  the function to execute for each classdev.
+ * @undo  A function to undo the work previously done in case of error
+ *
+ * This function is a safe version of
+ * attribute_container_device_trigger. It stops on the first error and
+ * undo the partial work that has been done, on previous classdev.  It
+ * is guaranteed that either they all succeeded, or none of them
+ * succeeded.
+ */
+int
+attribute_container_device_trigger_safe(struct device *dev,
+					int (*fn)(struct attribute_container *,
+						  struct device *,
+						  struct device *),
+					int (*undo)(struct attribute_container *,
+						    struct device *,
+						    struct device *))
+{
+	struct attribute_container *cont, *failed = NULL;
+	int ret = 0;
+
+	mutex_lock(&attribute_container_mutex);
+
+	list_for_each_entry(cont, &attribute_container_list, node) {
+
+		if (!cont->match(cont, dev))
+			continue;
+
+		ret = do_attribute_container_device_trigger_safe(dev, cont,
+								 fn, undo);
+		if (ret) {
+			failed = cont;
+			break;
+		}
+	}
+
+	if (ret && !WARN_ON(!undo)) {
+		list_for_each_entry(cont, &attribute_container_list, node) {
+
+			if (failed == cont)
+				break;
+
+			if (!cont->match(cont, dev))
+				continue;
+
+			do_attribute_container_device_trigger_safe(dev, cont,
+								   undo, NULL);
+		}
+	}
+
+	mutex_unlock(&attribute_container_mutex);
+	return ret;
+
+}
+
 /**
  * attribute_container_device_trigger - execute a trigger for each matching classdev
  *

drivers/base/transport_class.c

@@ -30,6 +30,10 @@
 #include <linux/attribute_container.h>
 #include <linux/transport_class.h>
 
+static int transport_remove_classdev(struct attribute_container *cont,
+				     struct device *dev,
+				     struct device *classdev);
+
 /**
  * transport_class_register - register an initial transport class
  *
@@ -172,10 +176,11 @@ static int transport_add_class_device(struct attribute_container *cont,
  * routine is simply a trigger point used to add the device to the
  * system and register attributes for it.
  */
-
+int transport_add_device(struct device *dev)
-void transport_add_device(struct device *dev)
 {
-	attribute_container_device_trigger(dev, transport_add_class_device);
+	return attribute_container_device_trigger_safe(dev,
+					transport_add_class_device,
+					transport_remove_classdev);
 }
 EXPORT_SYMBOL_GPL(transport_add_device);
 

drivers/block/aoe/aoeblk.c

@@ -329,6 +329,7 @@ static const struct block_device_operations aoe_bdops = {
 	.open = aoeblk_open,
 	.release = aoeblk_release,
 	.ioctl = aoeblk_ioctl,
+	.compat_ioctl = blkdev_compat_ptr_ioctl,
 	.getgeo = aoeblk_getgeo,
 	.owner = THIS_MODULE,
 };

drivers/block/floppy.c

@@ -3879,6 +3879,9 @@ static int fd_compat_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
 {
 	int drive = (long)bdev->bd_disk->private_data;
 	switch (cmd) {
+	case CDROMEJECT: /* CD-ROM eject */
+	case 0x6470:	 /* SunOS floppy eject */
+
 	case FDMSGON:
 	case FDMSGOFF:
 	case FDSETEMSGTRESH:

drivers/block/paride/pcd.c

@@ -275,6 +275,9 @@ static const struct block_device_operations pcd_bdops = {
 	.open		= pcd_block_open,
 	.release	= pcd_block_release,
 	.ioctl		= pcd_block_ioctl,
+#ifdef CONFIG_COMPAT
+	.ioctl		= blkdev_compat_ptr_ioctl,
+#endif
 	.check_events	= pcd_block_check_events,
 };
 

drivers/block/paride/pd.c

@@ -874,6 +874,7 @@ static const struct block_device_operations pd_fops = {
 	.open		= pd_open,
 	.release	= pd_release,
 	.ioctl		= pd_ioctl,
+	.compat_ioctl	= pd_ioctl,
 	.getgeo		= pd_getgeo,
 	.check_events	= pd_check_events,
 	.revalidate_disk= pd_revalidate

drivers/block/paride/pf.c

@@ -276,6 +276,7 @@ static const struct block_device_operations pf_fops = {
 	.open		= pf_open,
 	.release	= pf_release,
 	.ioctl		= pf_ioctl,
+	.compat_ioctl	= pf_ioctl,
 	.getgeo		= pf_getgeo,
 	.check_events	= pf_check_events,
 };

drivers/block/pktcdvd.c

@@ -2663,28 +2663,6 @@ static int pkt_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
 	return ret;
 }
 
-#ifdef CONFIG_COMPAT
-static int pkt_compat_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg)
-{
-	switch (cmd) {
-	/* compatible */
-	case CDROMEJECT:
-	case CDROMMULTISESSION:
-	case CDROMREADTOCENTRY:
-	case SCSI_IOCTL_SEND_COMMAND:
-		return pkt_ioctl(bdev, mode, cmd, (unsigned long)compat_ptr(arg));
-
-
-	/* FIXME: no handler so far */
-	case CDROM_LAST_WRITTEN:
-	/* handled in compat_blkdev_driver_ioctl */
-	case CDROM_SEND_PACKET:
-	default:
-		return -ENOIOCTLCMD;
-	}
-}
-#endif
-
 static unsigned int pkt_check_events(struct gendisk *disk,
 				     unsigned int clearing)
 {
@@ -2706,9 +2684,7 @@ static const struct block_device_operations pktcdvd_ops = {
 	.open =			pkt_open,
 	.release =		pkt_close,
 	.ioctl =		pkt_ioctl,
-#ifdef CONFIG_COMPAT
+	.compat_ioctl =		blkdev_compat_ptr_ioctl,
-	.compat_ioctl =		pkt_compat_ioctl,
-#endif
 	.check_events =		pkt_check_events,
 };
 

drivers/block/sunvdc.c

@@ -171,6 +171,7 @@ static const struct block_device_operations vdc_fops = {
 	.owner		= THIS_MODULE,
 	.getgeo		= vdc_getgeo,
 	.ioctl		= vdc_ioctl,
+	.compat_ioctl	= blkdev_compat_ptr_ioctl,
 };
 
 static void vdc_blk_queue_start(struct vdc_port *port)

drivers/block/virtio_blk.c

@@ -405,6 +405,9 @@ static int virtblk_getgeo(struct block_device *bd, struct hd_geometry *geo)
 
 static const struct block_device_operations virtblk_fops = {
 	.ioctl  = virtblk_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = blkdev_compat_ptr_ioctl,
+#endif
 	.owner  = THIS_MODULE,
 	.getgeo = virtblk_getgeo,
 };

drivers/block/xen-blkfront.c

@@ -2632,6 +2632,7 @@ static const struct block_device_operations xlvbd_block_fops =
 	.release = blkif_release,
 	.getgeo = blkif_getgeo,
 	.ioctl = blkif_ioctl,
+	.compat_ioctl = blkdev_compat_ptr_ioctl,
 };
 
 

drivers/cdrom/cdrom.c

@@ -3017,9 +3017,31 @@ static noinline int mmc_ioctl_cdrom_read_audio(struct cdrom_device_info *cdi,
 	struct cdrom_read_audio ra;
 	int lba;
 
-	if (copy_from_user(&ra, (struct cdrom_read_audio __user *)arg,
+#ifdef CONFIG_COMPAT
-			   sizeof(ra)))
+	if (in_compat_syscall()) {
-		return -EFAULT;
+		struct compat_cdrom_read_audio {
+			union cdrom_addr	addr;
+			u8			addr_format;
+			compat_int_t		nframes;
+			compat_caddr_t		buf;
+		} ra32;
+
+		if (copy_from_user(&ra32, arg, sizeof(ra32)))
+			return -EFAULT;
+
+		ra = (struct cdrom_read_audio) {
+			.addr		= ra32.addr,
+			.addr_format	= ra32.addr_format,
+			.nframes	= ra32.nframes,
+			.buf		= compat_ptr(ra32.buf),
+		};
+	} else
+#endif
+	{
+		if (copy_from_user(&ra, (struct cdrom_read_audio __user *)arg,
+				   sizeof(ra)))
+			return -EFAULT;
+	}
 
 	if (ra.addr_format == CDROM_MSF)
 		lba = msf_to_lba(ra.addr.msf.minute,
@@ -3271,9 +3293,10 @@ static noinline int mmc_ioctl_cdrom_last_written(struct cdrom_device_info *cdi,
 	ret = cdrom_get_last_written(cdi, &last);
 	if (ret)
 		return ret;
-	if (copy_to_user((long __user *)arg, &last, sizeof(last)))
+	if (in_compat_syscall())
-		return -EFAULT;
+		return put_user(last, (__s32 __user *)arg);
-	return 0;
+
+	return put_user(last, (long __user *)arg);
 }
 
 static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,

drivers/cdrom/gdrom.c

@@ -518,6 +518,9 @@ static const struct block_device_operations gdrom_bdops = {
 	.release		= gdrom_bdops_release,
 	.check_events		= gdrom_bdops_check_events,
 	.ioctl			= gdrom_bdops_ioctl,
+#ifdef CONFIG_COMPAT
+	.ioctl			= blkdev_compat_ptr_ioctl,
+#endif
 };
 
 static irqreturn_t gdrom_command_interrupt(int irq, void *dev_id)

drivers/ide/ide-cd.c

@@ -25,6 +25,7 @@
 
 #define IDECD_VERSION "5.00"
 
+#include <linux/compat.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
@@ -1710,6 +1711,41 @@ static int idecd_ioctl(struct block_device *bdev, fmode_t mode,
 	return ret;
 }
 
+static int idecd_locked_compat_ioctl(struct block_device *bdev, fmode_t mode,
+			unsigned int cmd, unsigned long arg)
+{
+	struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info);
+	void __user *argp = compat_ptr(arg);
+	int err;
+
+	switch (cmd) {
+	case CDROMSETSPINDOWN:
+		return idecd_set_spindown(&info->devinfo, (unsigned long)argp);
+	case CDROMGETSPINDOWN:
+		return idecd_get_spindown(&info->devinfo, (unsigned long)argp);
+	default:
+		break;
+	}
+
+	err = generic_ide_ioctl(info->drive, bdev, cmd, arg);
+	if (err == -EINVAL)
+		err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd,
+				  (unsigned long)argp);
+
+	return err;
+}
+
+static int idecd_compat_ioctl(struct block_device *bdev, fmode_t mode,
+			     unsigned int cmd, unsigned long arg)
+{
+	int ret;
+
+	mutex_lock(&ide_cd_mutex);
+	ret = idecd_locked_compat_ioctl(bdev, mode, cmd, arg);
+	mutex_unlock(&ide_cd_mutex);
+
+	return ret;
+}
 
 static unsigned int idecd_check_events(struct gendisk *disk,
 				       unsigned int clearing)
@@ -1732,6 +1768,8 @@ static const struct block_device_operations idecd_ops = {
 	.open			= idecd_open,
 	.release		= idecd_release,
 	.ioctl			= idecd_ioctl,
+	.compat_ioctl		= IS_ENABLED(CONFIG_COMPAT) ?
+				  idecd_compat_ioctl : NULL,
 	.check_events		= idecd_check_events,
 	.revalidate_disk	= idecd_revalidate_disk
 };

drivers/ide/ide-disk.c

@@ -794,4 +794,5 @@ const struct ide_disk_ops ide_ata_disk_ops = {
 	.set_doorlock		= ide_disk_set_doorlock,
 	.do_request		= ide_do_rw_disk,
 	.ioctl			= ide_disk_ioctl,
+	.compat_ioctl		= ide_disk_ioctl,
 };

drivers/ide/ide-floppy.c

@@ -19,6 +19,7 @@
 #include <linux/types.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
+#include <linux/compat.h>
 #include <linux/delay.h>
 #include <linux/timer.h>
 #include <linux/mm.h>
@@ -546,4 +547,7 @@ const struct ide_disk_ops ide_atapi_disk_ops = {
 	.set_doorlock	= ide_set_media_lock,
 	.do_request	= ide_floppy_do_request,
 	.ioctl		= ide_floppy_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= ide_floppy_compat_ioctl,
+#endif
 };

drivers/ide/ide-floppy.h

@@ -26,6 +26,8 @@ void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *);
 /* ide-floppy_ioctl.c */
 int ide_floppy_ioctl(ide_drive_t *, struct block_device *, fmode_t,
 		     unsigned int, unsigned long);
+int ide_floppy_compat_ioctl(ide_drive_t *, struct block_device *, fmode_t,
+			    unsigned int, unsigned long);
 
 #ifdef CONFIG_IDE_PROC_FS
 /* ide-floppy_proc.c */

drivers/ide/ide-floppy_ioctl.c

@@ -5,6 +5,7 @@
 
 #include <linux/kernel.h>
 #include <linux/ide.h>
+#include <linux/compat.h>
 #include <linux/cdrom.h>
 #include <linux/mutex.h>
 
@@ -302,3 +303,37 @@ out:
 	mutex_unlock(&ide_floppy_ioctl_mutex);
 	return err;
 }
+
+#ifdef CONFIG_COMPAT
+int ide_floppy_compat_ioctl(ide_drive_t *drive, struct block_device *bdev,
+			    fmode_t mode, unsigned int cmd, unsigned long arg)
+{
+	struct ide_atapi_pc pc;
+	void __user *argp = compat_ptr(arg);
+	int err;
+
+	mutex_lock(&ide_floppy_ioctl_mutex);
+	if (cmd == CDROMEJECT || cmd == CDROM_LOCKDOOR) {
+		err = ide_floppy_lockdoor(drive, &pc, arg, cmd);
+		goto out;
+	}
+
+	err = ide_floppy_format_ioctl(drive, &pc, mode, cmd, argp);
+	if (err != -ENOTTY)
+		goto out;
+
+	/*
+	 * skip SCSI_IOCTL_SEND_COMMAND (deprecated)
+	 * and CDROM_SEND_PACKET (legacy) ioctls
+	 */
+	if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND)
+		err = scsi_cmd_blk_ioctl(bdev, mode, cmd, argp);
+
+	if (err == -ENOTTY)
+		err = generic_ide_ioctl(drive, bdev, cmd, arg);
+
+out:
+	mutex_unlock(&ide_floppy_ioctl_mutex);
+	return err;
+}
+#endif

drivers/ide/ide-gd.c

@@ -341,11 +341,28 @@ static int ide_gd_ioctl(struct block_device *bdev, fmode_t mode,
 	return drive->disk_ops->ioctl(drive, bdev, mode, cmd, arg);
 }
 
+#ifdef CONFIG_COMPAT
+static int ide_gd_compat_ioctl(struct block_device *bdev, fmode_t mode,
+			       unsigned int cmd, unsigned long arg)
+{
+	struct ide_disk_obj *idkp = ide_drv_g(bdev->bd_disk, ide_disk_obj);
+	ide_drive_t *drive = idkp->drive;
+
+	if (!drive->disk_ops->compat_ioctl)
+		return -ENOIOCTLCMD;
+
+	return drive->disk_ops->compat_ioctl(drive, bdev, mode, cmd, arg);
+}
+#endif
+
 static const struct block_device_operations ide_gd_ops = {
 	.owner			= THIS_MODULE,
 	.open			= ide_gd_unlocked_open,
 	.release		= ide_gd_release,
 	.ioctl			= ide_gd_ioctl,
+#ifdef CONFIG_COMPAT
+	.ioctl			= ide_gd_compat_ioctl,
+#endif
 	.getgeo			= ide_gd_getgeo,
 	.check_events		= ide_gd_check_events,
 	.unlock_native_capacity	= ide_gd_unlock_native_capacity,

drivers/ide/ide-ioctls.c

@@ -3,11 +3,20 @@
  * IDE ioctls handling.
  */
 
+#include <linux/compat.h>
 #include <linux/export.h>
 #include <linux/hdreg.h>
 #include <linux/ide.h>
 #include <linux/slab.h>
 
+static int put_user_long(long val, unsigned long arg)
+{
+	if (in_compat_syscall())
+		return put_user(val, (compat_long_t __user *)compat_ptr(arg));
+
+	return put_user(val, (long __user *)arg);
+}
+
 static const struct ide_ioctl_devset ide_ioctl_settings[] = {
 { HDIO_GET_32BIT,	 HDIO_SET_32BIT,	&ide_devset_io_32bit  },
 { HDIO_GET_KEEPSETTINGS, HDIO_SET_KEEPSETTINGS,	&ide_devset_keepsettings },
@@ -37,7 +46,7 @@ read_val:
 	mutex_lock(&ide_setting_mtx);
 	err = ds->get(drive);
 	mutex_unlock(&ide_setting_mtx);
-	return err >= 0 ? put_user(err, (long __user *)arg) : err;
+	return err >= 0 ? put_user_long(err, arg) : err;
 
 set_val:
 	if (bdev != bdev->bd_contains)
@@ -56,7 +65,7 @@ set_val:
 EXPORT_SYMBOL_GPL(ide_setting_ioctl);
 
 static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd,
-				  unsigned long arg)
+				  void __user *argp)
 {
 	u16 *id = NULL;
 	int size = (cmd == HDIO_GET_IDENTITY) ? (ATA_ID_WORDS * 2) : 142;
@@ -77,7 +86,7 @@ static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd,
 	memcpy(id, drive->id, size);
 	ata_id_to_hd_driveid(id);
 
-	if (copy_to_user((void __user *)arg, id, size))
+	if (copy_to_user(argp, id, size))
 		rc = -EFAULT;
 
 	kfree(id);
@@ -87,10 +96,10 @@ out:
 
 static int ide_get_nice_ioctl(ide_drive_t *drive, unsigned long arg)
 {
-	return put_user((!!(drive->dev_flags & IDE_DFLAG_DSC_OVERLAP)
+	return put_user_long((!!(drive->dev_flags & IDE_DFLAG_DSC_OVERLAP)
 			 << IDE_NICE_DSC_OVERLAP) |
 			(!!(drive->dev_flags & IDE_DFLAG_NICE1)
-			 << IDE_NICE_1), (long __user *)arg);
+			 << IDE_NICE_1), arg);
 }
 
 static int ide_set_nice_ioctl(ide_drive_t *drive, unsigned long arg)
@@ -115,7 +124,7 @@ static int ide_set_nice_ioctl(ide_drive_t *drive, unsigned long arg)
 	return 0;
 }
 
-static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg)
+static int ide_cmd_ioctl(ide_drive_t *drive, void __user *argp)
 {
 	u8 *buf = NULL;
 	int bufsize = 0, err = 0;
@@ -123,7 +132,7 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg)
 	struct ide_cmd cmd;
 	struct ide_taskfile *tf = &cmd.tf;
 
-	if (NULL == (void *) arg) {
+	if (NULL == argp) {
 		struct request *rq;
 
 		rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0);
@@ -135,7 +144,7 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg)
 		return err;
 	}
 
-	if (copy_from_user(args, (void __user *)arg, 4))
+	if (copy_from_user(args, argp, 4))
 		return -EFAULT;
 
 	memset(&cmd, 0, sizeof(cmd));
@@ -181,19 +190,18 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg)
 	args[1] = tf->error;
 	args[2] = tf->nsect;
 abort:
-	if (copy_to_user((void __user *)arg, &args, 4))
+	if (copy_to_user(argp, &args, 4))
 		err = -EFAULT;
 	if (buf) {
-		if (copy_to_user((void __user *)(arg + 4), buf, bufsize))
+		if (copy_to_user((argp + 4), buf, bufsize))
 			err = -EFAULT;
 		kfree(buf);
 	}
 	return err;
 }
 
-static int ide_task_ioctl(ide_drive_t *drive, unsigned long arg)
+static int ide_task_ioctl(ide_drive_t *drive, void __user *p)
 {
-	void __user *p = (void __user *)arg;
 	int err = 0;
 	u8 args[7];
 	struct ide_cmd cmd;
@@ -237,6 +245,10 @@ int generic_ide_ioctl(ide_drive_t *drive, struct block_device *bdev,
 		      unsigned int cmd, unsigned long arg)
 {
 	int err;
+	void __user *argp = (void __user *)arg;
+
+	if (in_compat_syscall())
+		argp = compat_ptr(arg);
 
 	err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_ioctl_settings);
 	if (err != -EOPNOTSUPP)
@@ -247,7 +259,7 @@ int generic_ide_ioctl(ide_drive_t *drive, struct block_device *bdev,
 	case HDIO_GET_IDENTITY:
 		if (bdev != bdev->bd_contains)
 			return -EINVAL;
-		return ide_get_identity_ioctl(drive, cmd, arg);
+		return ide_get_identity_ioctl(drive, cmd, argp);
 	case HDIO_GET_NICE:
 		return ide_get_nice_ioctl(drive, arg);
 	case HDIO_SET_NICE:
@@ -258,6 +270,9 @@ int generic_ide_ioctl(ide_drive_t *drive, struct block_device *bdev,
 	case HDIO_DRIVE_TASKFILE:
 		if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
 			return -EACCES;
+		/* missing compat handler for HDIO_DRIVE_TASKFILE */
+		if (in_compat_syscall())
+			return -ENOTTY;
 		if (drive->media == ide_disk)
 			return ide_taskfile_ioctl(drive, arg);
 		return -ENOMSG;
@@ -265,11 +280,11 @@ int generic_ide_ioctl(ide_drive_t *drive, struct block_device *bdev,
 	case HDIO_DRIVE_CMD:
 		if (!capable(CAP_SYS_RAWIO))
 			return -EACCES;
-		return ide_cmd_ioctl(drive, arg);
+		return ide_cmd_ioctl(drive, argp);
 	case HDIO_DRIVE_TASK:
 		if (!capable(CAP_SYS_RAWIO))
 			return -EACCES;
-		return ide_task_ioctl(drive, arg);
+		return ide_task_ioctl(drive, argp);
 	case HDIO_DRIVE_RESET:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EACCES;
@@ -277,7 +292,7 @@ int generic_ide_ioctl(ide_drive_t *drive, struct block_device *bdev,
 	case HDIO_GET_BUSSTATE:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EACCES;
-		if (put_user(BUSSTATE_ON, (long __user *)arg))
+		if (put_user_long(BUSSTATE_ON, arg))
 			return -EFAULT;
 		return 0;
 	case HDIO_SET_BUSSTATE:

drivers/ide/ide-tape.c

@@ -1945,11 +1945,22 @@ static int idetape_ioctl(struct block_device *bdev, fmode_t mode,
 	return err;
 }
 
+static int idetape_compat_ioctl(struct block_device *bdev, fmode_t mode,
+				unsigned int cmd, unsigned long arg)
+{
+        if (cmd == 0x0340 || cmd == 0x350)
+		arg = (unsigned long)compat_ptr(arg);
+
+	return idetape_ioctl(bdev, mode, cmd, arg);
+}
+
 static const struct block_device_operations idetape_block_ops = {
 	.owner		= THIS_MODULE,
 	.open		= idetape_open,
 	.release	= idetape_release,
 	.ioctl		= idetape_ioctl,
+	.compat_ioctl	= IS_ENABLED(CONFIG_COMPAT) ?
+				idetape_compat_ioctl : NULL,
 };
 
 static int ide_tape_probe(ide_drive_t *drive)

drivers/scsi/BusLogic.c

@@ -134,7 +134,7 @@ static char *blogic_cmd_failure_reason;
 static void blogic_announce_drvr(struct blogic_adapter *adapter)
 {
 	blogic_announce("***** BusLogic SCSI Driver Version " blogic_drvr_version " of " blogic_drvr_date " *****\n", adapter);
-	blogic_announce("Copyright 1995-1998 by Leonard N. Zubkoff " "<lnz@dandelion.com>\n", adapter);
+	blogic_announce("Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>\n", adapter);
 }
 
 
@@ -440,7 +440,7 @@ static int blogic_cmd(struct blogic_adapter *adapter, enum blogic_opcode opcode,
 			goto done;
 		}
 		if (blogic_global_options.trace_config)
-			blogic_notice("blogic_cmd(%02X) Status = %02X: " "(Modify I/O Address)\n", adapter, opcode, statusreg.all);
+			blogic_notice("blogic_cmd(%02X) Status = %02X: (Modify I/O Address)\n", adapter, opcode, statusreg.all);
 		result = 0;
 		goto done;
 	}
@@ -716,23 +716,23 @@ static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter)
 		pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
 
 		if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
-			blogic_err("BusLogic: Base Address0 0x%X not I/O for " "MultiMaster Host Adapter\n", NULL, base_addr0);
+			blogic_err("BusLogic: Base Address0 0x%lX not I/O for MultiMaster Host Adapter\n", NULL, base_addr0);
-			blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
+			blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
 			continue;
 		}
 		if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
-			blogic_err("BusLogic: Base Address1 0x%X not Memory for " "MultiMaster Host Adapter\n", NULL, base_addr1);
+			blogic_err("BusLogic: Base Address1 0x%lX not Memory for MultiMaster Host Adapter\n", NULL, base_addr1);
-			blogic_err("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, bus, device, pci_addr);
+			blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr);
 			continue;
 		}
 		if (irq_ch == 0) {
-			blogic_err("BusLogic: IRQ Channel %d invalid for " "MultiMaster Host Adapter\n", NULL, irq_ch);
+			blogic_err("BusLogic: IRQ Channel %d invalid for MultiMaster Host Adapter\n", NULL, irq_ch);
-			blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
+			blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
 			continue;
 		}
 		if (blogic_global_options.trace_probe) {
-			blogic_notice("BusLogic: PCI MultiMaster Host Adapter " "detected at\n", NULL);
+			blogic_notice("BusLogic: PCI MultiMaster Host Adapter detected at\n", NULL);
-			blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address " "0x%X PCI Address 0x%X\n", NULL, bus, device, io_addr, pci_addr);
+			blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr);
 		}
 		/*
 		   Issue the Inquire PCI Host Adapter Information command to determine
@@ -818,7 +818,7 @@ static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter)
 			nonpr_mmcount++;
 			mmcount++;
 		} else
-			blogic_warn("BusLogic: Too many Host Adapters " "detected\n", NULL);
+			blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL);
 	}
 	/*
 	   If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq."
@@ -956,23 +956,23 @@ static int __init blogic_init_fp_probeinfo(struct blogic_adapter *adapter)
 		pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
 #ifdef CONFIG_SCSI_FLASHPOINT
 		if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
-			blogic_err("BusLogic: Base Address0 0x%X not I/O for " "FlashPoint Host Adapter\n", NULL, base_addr0);
+			blogic_err("BusLogic: Base Address0 0x%lX not I/O for FlashPoint Host Adapter\n", NULL, base_addr0);
-			blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
+			blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
 			continue;
 		}
 		if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
-			blogic_err("BusLogic: Base Address1 0x%X not Memory for " "FlashPoint Host Adapter\n", NULL, base_addr1);
+			blogic_err("BusLogic: Base Address1 0x%lX not Memory for FlashPoint Host Adapter\n", NULL, base_addr1);
-			blogic_err("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, bus, device, pci_addr);
+			blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr);
 			continue;
 		}
 		if (irq_ch == 0) {
-			blogic_err("BusLogic: IRQ Channel %d invalid for " "FlashPoint Host Adapter\n", NULL, irq_ch);
+			blogic_err("BusLogic: IRQ Channel %d invalid for FlashPoint Host Adapter\n", NULL, irq_ch);
-			blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
+			blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
 			continue;
 		}
 		if (blogic_global_options.trace_probe) {
-			blogic_notice("BusLogic: FlashPoint Host Adapter " "detected at\n", NULL);
+			blogic_notice("BusLogic: FlashPoint Host Adapter detected at\n", NULL);
-			blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address " "0x%X PCI Address 0x%X\n", NULL, bus, device, io_addr, pci_addr);
+			blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr);
 		}
 		if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
 			struct blogic_probeinfo *probeinfo =
@@ -987,11 +987,11 @@ static int __init blogic_init_fp_probeinfo(struct blogic_adapter *adapter)
 			probeinfo->pci_device = pci_dev_get(pci_device);
 			fpcount++;
 		} else
-			blogic_warn("BusLogic: Too many Host Adapters " "detected\n", NULL);
+			blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL);
 #else
-		blogic_err("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", NULL, bus, device);
+		blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", NULL, bus, device);
-		blogic_err("BusLogic: I/O Address 0x%X PCI Address 0x%X, irq %d, " "but FlashPoint\n", NULL, io_addr, pci_addr, irq_ch);
+		blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, irq %d, but FlashPoint\n", NULL, io_addr, pci_addr, irq_ch);
-		blogic_err("BusLogic: support was omitted in this kernel " "configuration.\n", NULL);
+		blogic_err("BusLogic: support was omitted in this kernel configuration.\n", NULL);
 #endif
 	}
 	/*
@@ -1099,9 +1099,9 @@ static bool blogic_failure(struct blogic_adapter *adapter, char *msg)
 	if (adapter->adapter_bus_type == BLOGIC_PCI_BUS) {
 		blogic_err("While configuring BusLogic PCI Host Adapter at\n",
 				adapter);
-		blogic_err("Bus %d Device %d I/O Address 0x%X PCI Address 0x%X:\n", adapter, adapter->bus, adapter->dev, adapter->io_addr, adapter->pci_addr);
+		blogic_err("Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX:\n", adapter, adapter->bus, adapter->dev, adapter->io_addr, adapter->pci_addr);
 	} else
-		blogic_err("While configuring BusLogic Host Adapter at " "I/O Address 0x%X:\n", adapter, adapter->io_addr);
+		blogic_err("While configuring BusLogic Host Adapter at I/O Address 0x%lX:\n", adapter, adapter->io_addr);
 	blogic_err("%s FAILED - DETACHING\n", adapter, msg);
 	if (blogic_cmd_failure_reason != NULL)
 		blogic_err("ADDITIONAL FAILURE INFO - %s\n", adapter,
@@ -1129,13 +1129,13 @@ static bool __init blogic_probe(struct blogic_adapter *adapter)
 		fpinfo->present = false;
 		if (!(FlashPoint_ProbeHostAdapter(fpinfo) == 0 &&
 					fpinfo->present)) {
-			blogic_err("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", adapter, adapter->bus, adapter->dev);
+			blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", adapter, adapter->bus, adapter->dev);
-			blogic_err("BusLogic: I/O Address 0x%X PCI Address 0x%X, " "but FlashPoint\n", adapter, adapter->io_addr, adapter->pci_addr);
+			blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, but FlashPoint\n", adapter, adapter->io_addr, adapter->pci_addr);
 			blogic_err("BusLogic: Probe Function failed to validate it.\n", adapter);
 			return false;
 		}
 		if (blogic_global_options.trace_probe)
-			blogic_notice("BusLogic_Probe(0x%X): FlashPoint Found\n", adapter, adapter->io_addr);
+			blogic_notice("BusLogic_Probe(0x%lX): FlashPoint Found\n", adapter, adapter->io_addr);
 		/*
 		   Indicate the Host Adapter Probe completed successfully.
 		 */
@@ -1152,7 +1152,7 @@ static bool __init blogic_probe(struct blogic_adapter *adapter)
 	intreg.all = blogic_rdint(adapter);
 	georeg.all = blogic_rdgeom(adapter);
 	if (blogic_global_options.trace_probe)
-		blogic_notice("BusLogic_Probe(0x%X): Status 0x%02X, Interrupt 0x%02X, " "Geometry 0x%02X\n", adapter, adapter->io_addr, statusreg.all, intreg.all, georeg.all);
+		blogic_notice("BusLogic_Probe(0x%lX): Status 0x%02X, Interrupt 0x%02X, Geometry 0x%02X\n", adapter, adapter->io_addr, statusreg.all, intreg.all, georeg.all);
 	if (statusreg.all == 0 || statusreg.sr.diag_active ||
 			statusreg.sr.cmd_param_busy || statusreg.sr.rsvd ||
 			statusreg.sr.cmd_invalid || intreg.ir.rsvd != 0)
@@ -1231,7 +1231,7 @@ static bool blogic_hwreset(struct blogic_adapter *adapter, bool hard_reset)
 		udelay(100);
 	}
 	if (blogic_global_options.trace_hw_reset)
-		blogic_notice("BusLogic_HardwareReset(0x%X): Diagnostic Active, " "Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
+		blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Active, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
 	if (timeout < 0)
 		return false;
 	/*
@@ -1251,7 +1251,7 @@ static bool blogic_hwreset(struct blogic_adapter *adapter, bool hard_reset)
 		udelay(100);
 	}
 	if (blogic_global_options.trace_hw_reset)
-		blogic_notice("BusLogic_HardwareReset(0x%X): Diagnostic Completed, " "Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
+		blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Completed, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
 	if (timeout < 0)
 		return false;
 	/*
@@ -1267,7 +1267,7 @@ static bool blogic_hwreset(struct blogic_adapter *adapter, bool hard_reset)
 		udelay(100);
 	}
 	if (blogic_global_options.trace_hw_reset)
-		blogic_notice("BusLogic_HardwareReset(0x%X): Host Adapter Ready, " "Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
+		blogic_notice("BusLogic_HardwareReset(0x%lX): Host Adapter Ready, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
 	if (timeout < 0)
 		return false;
 	/*
@@ -1323,7 +1323,7 @@ static bool __init blogic_checkadapter(struct blogic_adapter *adapter)
 	   Provide tracing information if requested and return.
 	 */
 	if (blogic_global_options.trace_probe)
-		blogic_notice("BusLogic_Check(0x%X): MultiMaster %s\n", adapter,
+		blogic_notice("BusLogic_Check(0x%lX): MultiMaster %s\n", adapter,
 				adapter->io_addr,
 				(result ? "Found" : "Not Found"));
 	return result;
@@ -1836,7 +1836,7 @@ static bool __init blogic_reportconfig(struct blogic_adapter *adapter)
 	int tgt_id;
 
 	blogic_info("Configuring BusLogic Model %s %s%s%s%s SCSI Host Adapter\n", adapter, adapter->model, blogic_adapter_busnames[adapter->adapter_bus_type], (adapter->wide ? " Wide" : ""), (adapter->differential ? " Differential" : ""), (adapter->ultra ? " Ultra" : ""));
-	blogic_info("  Firmware Version: %s, I/O Address: 0x%X, " "IRQ Channel: %d/%s\n", adapter, adapter->fw_ver, adapter->io_addr, adapter->irq_ch, (adapter->level_int ? "Level" : "Edge"));
+	blogic_info("  Firmware Version: %s, I/O Address: 0x%lX, IRQ Channel: %d/%s\n", adapter, adapter->fw_ver, adapter->io_addr, adapter->irq_ch, (adapter->level_int ? "Level" : "Edge"));
 	if (adapter->adapter_bus_type != BLOGIC_PCI_BUS) {
 		blogic_info("  DMA Channel: ", adapter);
 		if (adapter->dma_ch > 0)
@@ -1844,7 +1844,7 @@ static bool __init blogic_reportconfig(struct blogic_adapter *adapter)
 		else
 			blogic_info("None, ", adapter);
 		if (adapter->bios_addr > 0)
-			blogic_info("BIOS Address: 0x%X, ", adapter,
+			blogic_info("BIOS Address: 0x%lX, ", adapter,
 					adapter->bios_addr);
 		else
 			blogic_info("BIOS Address: None, ", adapter);
@@ -1852,7 +1852,7 @@ static bool __init blogic_reportconfig(struct blogic_adapter *adapter)
 		blogic_info("  PCI Bus: %d, Device: %d, Address: ", adapter,
 				adapter->bus, adapter->dev);
 		if (adapter->pci_addr > 0)
-			blogic_info("0x%X, ", adapter, adapter->pci_addr);
+			blogic_info("0x%lX, ", adapter, adapter->pci_addr);
 		else
 			blogic_info("Unassigned, ", adapter);
 	}
@@ -1932,10 +1932,10 @@ static bool __init blogic_reportconfig(struct blogic_adapter *adapter)
 	blogic_info("  Disconnect/Reconnect: %s, Tagged Queuing: %s\n", adapter,
 			discon_msg, tagq_msg);
 	if (blogic_multimaster_type(adapter)) {
-		blogic_info("  Scatter/Gather Limit: %d of %d segments, " "Mailboxes: %d\n", adapter, adapter->drvr_sglimit, adapter->adapter_sglimit, adapter->mbox_count);
+		blogic_info("  Scatter/Gather Limit: %d of %d segments, Mailboxes: %d\n", adapter, adapter->drvr_sglimit, adapter->adapter_sglimit, adapter->mbox_count);
-		blogic_info("  Driver Queue Depth: %d, " "Host Adapter Queue Depth: %d\n", adapter, adapter->drvr_qdepth, adapter->adapter_qdepth);
+		blogic_info("  Driver Queue Depth: %d, Host Adapter Queue Depth: %d\n", adapter, adapter->drvr_qdepth, adapter->adapter_qdepth);
 	} else
-		blogic_info("  Driver Queue Depth: %d, " "Scatter/Gather Limit: %d segments\n", adapter, adapter->drvr_qdepth, adapter->drvr_sglimit);
+		blogic_info("  Driver Queue Depth: %d, Scatter/Gather Limit: %d segments\n", adapter, adapter->drvr_qdepth, adapter->drvr_sglimit);
 	blogic_info("  Tagged Queue Depth: ", adapter);
 	common_tagq_depth = true;
 	for (tgt_id = 1; tgt_id < adapter->maxdev; tgt_id++)
@@ -2717,7 +2717,7 @@ static void blogic_scan_inbox(struct blogic_adapter *adapter)
 				   then there is most likely a bug in
 				   the Host Adapter firmware.
 				 */
-				blogic_warn("Illegal CCB #%ld status %d in " "Incoming Mailbox\n", adapter, ccb->serial, ccb->status);
+				blogic_warn("Illegal CCB #%ld status %d in Incoming Mailbox\n", adapter, ccb->serial, ccb->status);
 			}
 		}
 		next_inbox->comp_code = BLOGIC_INBOX_FREE;
@@ -2752,7 +2752,7 @@ static void blogic_process_ccbs(struct blogic_adapter *adapter)
 		if (ccb->opcode == BLOGIC_BDR) {
 			int tgt_id = ccb->tgt_id;
 
-			blogic_warn("Bus Device Reset CCB #%ld to Target " "%d Completed\n", adapter, ccb->serial, tgt_id);
+			blogic_warn("Bus Device Reset CCB #%ld to Target %d Completed\n", adapter, ccb->serial, tgt_id);
 			blogic_inc_count(&adapter->tgt_stats[tgt_id].bdr_done);
 			adapter->tgt_flags[tgt_id].tagq_active = false;
 			adapter->cmds_since_rst[tgt_id] = 0;
@@ -2829,7 +2829,7 @@ static void blogic_process_ccbs(struct blogic_adapter *adapter)
 					if (blogic_global_options.trace_err) {
 						int i;
 						blogic_notice("CCB #%ld Target %d: Result %X Host "
-								"Adapter Status %02X " "Target Status %02X\n", adapter, ccb->serial, ccb->tgt_id, command->result, ccb->adapter_status, ccb->tgt_status);
+								"Adapter Status %02X Target Status %02X\n", adapter, ccb->serial, ccb->tgt_id, command->result, ccb->adapter_status, ccb->tgt_status);
 						blogic_notice("CDB   ", adapter);
 						for (i = 0; i < ccb->cdblen; i++)
 							blogic_notice(" %02X", adapter, ccb->cdb[i]);
@@ -3203,12 +3203,12 @@ static int blogic_qcmd_lck(struct scsi_cmnd *command,
 		 */
 		if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, ccb)) {
 			spin_unlock_irq(adapter->scsi_host->host_lock);
-			blogic_warn("Unable to write Outgoing Mailbox - " "Pausing for 1 second\n", adapter);
+			blogic_warn("Unable to write Outgoing Mailbox - Pausing for 1 second\n", adapter);
 			blogic_delay(1);
 			spin_lock_irq(adapter->scsi_host->host_lock);
 			if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START,
 						ccb)) {
-				blogic_warn("Still unable to write Outgoing Mailbox - " "Host Adapter Dead?\n", adapter);
+				blogic_warn("Still unable to write Outgoing Mailbox - Host Adapter Dead?\n", adapter);
 				blogic_dealloc_ccb(ccb, 1);
 				command->result = DID_ERROR << 16;
 				command->scsi_done(command);
@@ -3443,8 +3443,8 @@ static int blogic_diskparam(struct scsi_device *sdev, struct block_device *dev,
 			if (diskparam->cylinders != saved_cyl)
 				blogic_warn("Adopting Geometry %d/%d from Partition Table\n", adapter, diskparam->heads, diskparam->sectors);
 		} else if (part_end_head > 0 || part_end_sector > 0) {
-			blogic_warn("Warning: Partition Table appears to " "have Geometry %d/%d which is\n", adapter, part_end_head + 1, part_end_sector);
+			blogic_warn("Warning: Partition Table appears to have Geometry %d/%d which is\n", adapter, part_end_head + 1, part_end_sector);
-			blogic_warn("not compatible with current BusLogic " "Host Adapter Geometry %d/%d\n", adapter, diskparam->heads, diskparam->sectors);
+			blogic_warn("not compatible with current BusLogic Host Adapter Geometry %d/%d\n", adapter, diskparam->heads, diskparam->sectors);
 		}
 	}
 	kfree(buf);
@@ -3689,7 +3689,7 @@ static int __init blogic_parseopts(char *options)
 					blogic_probe_options.probe134 = true;
 					break;
 				default:
-					blogic_err("BusLogic: Invalid Driver Options " "(invalid I/O Address 0x%X)\n", NULL, io_addr);
+					blogic_err("BusLogic: Invalid Driver Options (invalid I/O Address 0x%lX)\n", NULL, io_addr);
 					return 0;
 				}
 			} else if (blogic_parse(&options, "NoProbeISA"))
@@ -3710,7 +3710,7 @@ static int __init blogic_parseopts(char *options)
 				for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
 					unsigned short qdepth = simple_strtoul(options, &options, 0);
 					if (qdepth > BLOGIC_MAX_TAG_DEPTH) {
-						blogic_err("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, qdepth);
+						blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth);
 						return 0;
 					}
 					drvr_opts->qdepth[tgt_id] = qdepth;
@@ -3719,12 +3719,12 @@ static int __init blogic_parseopts(char *options)
 					else if (*options == ']')
 						break;
 					else {
-						blogic_err("BusLogic: Invalid Driver Options " "(',' or ']' expected at '%s')\n", NULL, options);
+						blogic_err("BusLogic: Invalid Driver Options (',' or ']' expected at '%s')\n", NULL, options);
 						return 0;
 					}
 				}
 				if (*options != ']') {
-					blogic_err("BusLogic: Invalid Driver Options " "(']' expected at '%s')\n", NULL, options);
+					blogic_err("BusLogic: Invalid Driver Options (']' expected at '%s')\n", NULL, options);
 					return 0;
 				} else
 					options++;
@@ -3732,7 +3732,7 @@ static int __init blogic_parseopts(char *options)
 				unsigned short qdepth = simple_strtoul(options, &options, 0);
 				if (qdepth == 0 ||
 						qdepth > BLOGIC_MAX_TAG_DEPTH) {
-					blogic_err("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, qdepth);
+					blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth);
 					return 0;
 				}
 				drvr_opts->common_qdepth = qdepth;
@@ -3778,7 +3778,7 @@ static int __init blogic_parseopts(char *options)
 				unsigned short bus_settle_time =
 					simple_strtoul(options, &options, 0);
 				if (bus_settle_time > 5 * 60) {
-					blogic_err("BusLogic: Invalid Driver Options " "(invalid Bus Settle Time %d)\n", NULL, bus_settle_time);
+					blogic_err("BusLogic: Invalid Driver Options (invalid Bus Settle Time %d)\n", NULL, bus_settle_time);
 					return 0;
 				}
 				drvr_opts->bus_settle_time = bus_settle_time;
@@ -3803,14 +3803,14 @@ static int __init blogic_parseopts(char *options)
 			if (*options == ',')
 				options++;
 			else if (*options != ';' && *options != '\0') {
-				blogic_err("BusLogic: Unexpected Driver Option '%s' " "ignored\n", NULL, options);
+				blogic_err("BusLogic: Unexpected Driver Option '%s' ignored\n", NULL, options);
 				*options = '\0';
 			}
 		}
 		if (!(blogic_drvr_options_count == 0 ||
 			blogic_probeinfo_count == 0 ||
 			blogic_drvr_options_count == blogic_probeinfo_count)) {
-			blogic_err("BusLogic: Invalid Driver Options " "(all or no I/O Addresses must be specified)\n", NULL);
+			blogic_err("BusLogic: Invalid Driver Options (all or no I/O Addresses must be specified)\n", NULL);
 			return 0;
 		}
 		/*
@@ -3864,7 +3864,7 @@ static int __init blogic_setup(char *str)
 	(void) get_options(str, ARRAY_SIZE(ints), ints);
 
 	if (ints[0] != 0) {
-		blogic_err("BusLogic: Obsolete Command Line Entry " "Format Ignored\n", NULL);
+		blogic_err("BusLogic: Obsolete Command Line Entry Format Ignored\n", NULL);
 		return 0;
 	}
 	if (str == NULL || *str == '\0')

drivers/scsi/aic7xxx/aic7xxx_core.c

@@ -2314,7 +2314,7 @@ ahc_find_syncrate(struct ahc_softc *ahc, u_int *period,
 			 * At some speeds, we only support
 			 * ST transfers.
 			 */
-		 	if ((syncrate->sxfr_u2 & ST_SXFR) != 0)
+			if ((syncrate->sxfr_u2 & ST_SXFR) != 0)
 				*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
 			break;
 		}

drivers/scsi/aic94xx/aic94xx_init.c

@@ -54,6 +54,9 @@ static struct scsi_host_template aic94xx_sht = {
 	.eh_target_reset_handler	= sas_eh_target_reset_handler,
 	.target_destroy		= sas_target_destroy,
 	.ioctl			= sas_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl		= sas_ioctl,
+#endif
 	.track_queue_depth	= 1,
 };
 

drivers/scsi/ch.c

@@ -872,6 +872,10 @@ static long ch_ioctl_compat(struct file * file,
 			    unsigned int cmd, unsigned long arg)
 {
 	scsi_changer *ch = file->private_data;
+	int retval = scsi_ioctl_block_when_processing_errors(ch->device, cmd,
+							file->f_flags & O_NDELAY);
+	if (retval)
+		return retval;
 
 	switch (cmd) {
 	case CHIOGPARAMS:
@@ -883,7 +887,7 @@ static long ch_ioctl_compat(struct file * file,
 	case CHIOINITELEM:
 	case CHIOSVOLTAG:
 		/* compatible */
-		return ch_ioctl(file, cmd, arg);
+		return ch_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
 	case CHIOGSTATUS32:
 	{
 		struct changer_element_status32 ces32;
@@ -898,8 +902,7 @@ static long ch_ioctl_compat(struct file * file,
 		return ch_gstatus(ch, ces32.ces_type, data);
 	}
 	default:
-		// return scsi_ioctl_compat(ch->device, cmd, (void*)arg);
+		return scsi_compat_ioctl(ch->device, cmd, compat_ptr(arg));
-		return -ENOIOCTLCMD;
 
 	}
 }

drivers/scsi/csiostor/csio_scsi.c

@@ -1383,7 +1383,7 @@ csio_device_reset(struct device *dev,
 		return -EINVAL;
 
 	/* Delete NPIV lnodes */
-	 csio_lnodes_exit(hw, 1);
+	csio_lnodes_exit(hw, 1);
 
 	/* Block upper IOs */
 	csio_lnodes_block_request(hw);

drivers/scsi/esp_scsi.c

@@ -243,8 +243,6 @@ static void esp_set_all_config3(struct esp *esp, u8 val)
 /* Reset the ESP chip, _not_ the SCSI bus. */
 static void esp_reset_esp(struct esp *esp)
 {
-	u8 family_code, version;
-
 	/* Now reset the ESP chip */
 	scsi_esp_cmd(esp, ESP_CMD_RC);
 	scsi_esp_cmd(esp, ESP_CMD_NULL | ESP_CMD_DMA);
@@ -257,14 +255,19 @@ static void esp_reset_esp(struct esp *esp)
 	 */
 	esp->max_period = ((35 * esp->ccycle) / 1000);
 	if (esp->rev == FAST) {
-		version = esp_read8(ESP_UID);
+		u8 family_code = ESP_FAMILY(esp_read8(ESP_UID));
-		family_code = (version & 0xf8) >> 3;
+
-		if (family_code == 0x02)
+		if (family_code == ESP_UID_F236) {
 			esp->rev = FAS236;
-		else if (family_code == 0x0a)
+		} else if (family_code == ESP_UID_HME) {
 			esp->rev = FASHME; /* Version is usually '5'. */
-		else
+		} else if (family_code == ESP_UID_FSC) {
+			esp->rev = FSC;
+			/* Enable Active Negation */
+			esp_write8(ESP_CONFIG4_RADE, ESP_CFG4);
+		} else {
 			esp->rev = FAS100A;
+		}
 		esp->min_period = ((4 * esp->ccycle) / 1000);
 	} else {
 		esp->min_period = ((5 * esp->ccycle) / 1000);
@@ -308,7 +311,7 @@ static void esp_reset_esp(struct esp *esp)
 
 	case FAS236:
 	case PCSCSI:
-		/* Fast 236, AM53c974 or HME */
+	case FSC:
 		esp_write8(esp->config2, ESP_CFG2);
 		if (esp->rev == FASHME) {
 			u8 cfg3 = esp->target[0].esp_config3;
@@ -2373,10 +2376,11 @@ static const char *esp_chip_names[] = {
 	"ESP100A",
 	"ESP236",
 	"FAS236",
+	"AM53C974",
+	"53CF9x-2",
 	"FAS100A",
 	"FAST",
 	"FASHME",
-	"AM53C974",
 };
 
 static struct scsi_transport_template *esp_transport_template;

drivers/scsi/esp_scsi.h

@@ -78,12 +78,14 @@
 #define ESP_CONFIG3_IMS       0x80     /* ID msg chk'ng        (esp/fas236)  */
 #define ESP_CONFIG3_OBPUSH    0x80     /* Push odd-byte to dma (hme)         */
 
-/* ESP config register 4 read-write, found only on am53c974 chips */
+/* ESP config register 4 read-write */
-#define ESP_CONFIG4_RADE      0x04     /* Active negation */
+#define ESP_CONFIG4_BBTE      0x01     /* Back-to-back transfers     (fsc)   */
-#define ESP_CONFIG4_RAE       0x08     /* Active negation on REQ and ACK */
+#define ESP_CONGIG4_TEST      0x02     /* Transfer counter test mode (fsc)   */
-#define ESP_CONFIG4_PWD       0x20     /* Reduced power feature */
+#define ESP_CONFIG4_RADE      0x04     /* Active negation   (am53c974/fsc)   */
-#define ESP_CONFIG4_GE0       0x40     /* Glitch eater bit 0 */
+#define ESP_CONFIG4_RAE       0x08     /* Act. negation REQ/ACK (am53c974)   */
-#define ESP_CONFIG4_GE1       0x80     /* Glitch eater bit 1 */
+#define ESP_CONFIG4_PWD       0x20     /* Reduced power feature (am53c974)   */
+#define ESP_CONFIG4_GE0       0x40     /* Glitch eater bit 0    (am53c974)   */
+#define ESP_CONFIG4_GE1       0x80     /* Glitch eater bit 1    (am53c974)   */
 
 #define ESP_CONFIG_GE_12NS    (0)
 #define ESP_CONFIG_GE_25NS    (ESP_CONFIG_GE1)
@@ -209,10 +211,15 @@
 #define ESP_TEST_TS           0x04     /* Tristate test mode */
 
 /* ESP unique ID register read-only, found on fas236+fas100a only */
+#define ESP_UID_FAM           0xf8     /* ESP family bitmask */
+
+#define ESP_FAMILY(uid) (((uid) & ESP_UID_FAM) >> 3)
+
+/* Values for the ESP family bits */
 #define ESP_UID_F100A         0x00     /* ESP FAS100A  */
 #define ESP_UID_F236          0x02     /* ESP FAS236   */
-#define ESP_UID_REV           0x07     /* ESP revision */
+#define ESP_UID_HME           0x0a     /* FAS HME      */
-#define ESP_UID_FAM           0xf8     /* ESP family   */
+#define ESP_UID_FSC           0x14     /* NCR/Symbios Logic 53CF9x-2 */
 
 /* ESP fifo flags register read-only */
 /* Note that the following implies a 16 byte FIFO on the ESP. */
@@ -257,15 +264,17 @@ struct esp_cmd_priv {
 };
 #define ESP_CMD_PRIV(CMD)	((struct esp_cmd_priv *)(&(CMD)->SCp))
 
+/* NOTE: this enum is ordered based on chip features! */
 enum esp_rev {
-	ESP100     = 0x00,  /* NCR53C90 - very broken */
+	ESP100,  /* NCR53C90 - very broken */
-	ESP100A    = 0x01,  /* NCR53C90A */
+	ESP100A, /* NCR53C90A */
-	ESP236     = 0x02,
+	ESP236,
-	FAS236     = 0x03,
+	FAS236,
-	FAS100A    = 0x04,
+	PCSCSI,  /* AM53c974 */
-	FAST       = 0x05,
+	FSC,     /* NCR/Symbios Logic 53CF9x-2 */
-	FASHME     = 0x06,
+	FAS100A,
-	PCSCSI     = 0x07,  /* AM53c974 */
+	FAST,
+	FASHME,
 };
 
 struct esp_cmd_entry {

drivers/scsi/hisi_sas/hisi_sas.h

@@ -180,10 +180,10 @@ struct hisi_sas_port {
 
 struct hisi_sas_cq {
 	struct hisi_hba *hisi_hba;
-	const struct cpumask *pci_irq_mask;
+	const struct cpumask *irq_mask;
-	struct tasklet_struct tasklet;
 	int	rd_point;
 	int	id;
+	int	irq_no;
 };
 
 struct hisi_sas_dq {
@@ -627,7 +627,7 @@ extern void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba,
 extern void hisi_sas_init_mem(struct hisi_hba *hisi_hba);
 extern void hisi_sas_rst_work_handler(struct work_struct *work);
 extern void hisi_sas_sync_rst_work_handler(struct work_struct *work);
-extern void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba);
+extern void hisi_sas_sync_irqs(struct hisi_hba *hisi_hba);
 extern void hisi_sas_phy_oob_ready(struct hisi_hba *hisi_hba, int phy_no);
 extern bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy,
 				enum hisi_sas_phy_event event);

drivers/scsi/hisi_sas/hisi_sas_main.c

@@ -163,13 +163,11 @@ static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx)
 
 static void hisi_sas_slot_index_free(struct hisi_hba *hisi_hba, int slot_idx)
 {
-	unsigned long flags;
-
 	if (hisi_hba->hw->slot_index_alloc ||
 	    slot_idx >= HISI_SAS_UNRESERVED_IPTT) {
-		spin_lock_irqsave(&hisi_hba->lock, flags);
+		spin_lock(&hisi_hba->lock);
 		hisi_sas_slot_index_clear(hisi_hba, slot_idx);
-		spin_unlock_irqrestore(&hisi_hba->lock, flags);
+		spin_unlock(&hisi_hba->lock);
 	}
 }
 
@@ -185,12 +183,11 @@ static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba,
 {
 	int index;
 	void *bitmap = hisi_hba->slot_index_tags;
-	unsigned long flags;
 
 	if (scsi_cmnd)
 		return scsi_cmnd->request->tag;
 
-	spin_lock_irqsave(&hisi_hba->lock, flags);
+	spin_lock(&hisi_hba->lock);
 	index = find_next_zero_bit(bitmap, hisi_hba->slot_index_count,
 				   hisi_hba->last_slot_index + 1);
 	if (index >= hisi_hba->slot_index_count) {
@@ -198,13 +195,13 @@ static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba,
 				hisi_hba->slot_index_count,
 				HISI_SAS_UNRESERVED_IPTT);
 		if (index >= hisi_hba->slot_index_count) {
-			spin_unlock_irqrestore(&hisi_hba->lock, flags);
+			spin_unlock(&hisi_hba->lock);
 			return -SAS_QUEUE_FULL;
 		}
 	}
 	hisi_sas_slot_index_set(hisi_hba, index);
 	hisi_hba->last_slot_index = index;
-	spin_unlock_irqrestore(&hisi_hba->lock, flags);
+	spin_unlock(&hisi_hba->lock);
 
 	return index;
 }
@@ -220,7 +217,6 @@ static void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba)
 void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task,
 			     struct hisi_sas_slot *slot)
 {
-	unsigned long flags;
 	int device_id = slot->device_id;
 	struct hisi_sas_device *sas_dev = &hisi_hba->devices[device_id];
 
@@ -247,9 +243,9 @@ void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task,
 		}
 	}
 
-	spin_lock_irqsave(&sas_dev->lock, flags);
+	spin_lock(&sas_dev->lock);
 	list_del_init(&slot->entry);
-	spin_unlock_irqrestore(&sas_dev->lock, flags);
+	spin_unlock(&sas_dev->lock);
 
 	memset(slot, 0, offsetof(struct hisi_sas_slot, buf));
 
@@ -489,14 +485,14 @@ static int hisi_sas_task_prep(struct sas_task *task,
 	slot_idx = rc;
 	slot = &hisi_hba->slot_info[slot_idx];
 
-	spin_lock_irqsave(&dq->lock, flags);
+	spin_lock(&dq->lock);
 	wr_q_index = dq->wr_point;
 	dq->wr_point = (dq->wr_point + 1) % HISI_SAS_QUEUE_SLOTS;
 	list_add_tail(&slot->delivery, &dq->list);
-	spin_unlock_irqrestore(&dq->lock, flags);
+	spin_unlock(&dq->lock);
-	spin_lock_irqsave(&sas_dev->lock, flags);
+	spin_lock(&sas_dev->lock);
 	list_add_tail(&slot->entry, &sas_dev->list);
-	spin_unlock_irqrestore(&sas_dev->lock, flags);
+	spin_unlock(&sas_dev->lock);
 
 	dlvry_queue = dq->id;
 	dlvry_queue_slot = wr_q_index;
@@ -562,7 +558,6 @@ static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags,
 {
 	u32 rc;
 	u32 pass = 0;
-	unsigned long flags;
 	struct hisi_hba *hisi_hba;
 	struct device *dev;
 	struct domain_device *device = task->dev;
@@ -606,9 +601,9 @@ static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags,
 		dev_err(dev, "task exec: failed[%d]!\n", rc);
 
 	if (likely(pass)) {
-		spin_lock_irqsave(&dq->lock, flags);
+		spin_lock(&dq->lock);
 		hisi_hba->hw->start_delivery(dq);
-		spin_unlock_irqrestore(&dq->lock, flags);
+		spin_unlock(&dq->lock);
 	}
 
 	return rc;
@@ -659,12 +654,11 @@ static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device)
 {
 	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
 	struct hisi_sas_device *sas_dev = NULL;
-	unsigned long flags;
 	int last = hisi_hba->last_dev_id;
 	int first = (hisi_hba->last_dev_id + 1) % HISI_SAS_MAX_DEVICES;
 	int i;
 
-	spin_lock_irqsave(&hisi_hba->lock, flags);
+	spin_lock(&hisi_hba->lock);
 	for (i = first; i != last; i %= HISI_SAS_MAX_DEVICES) {
 		if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) {
 			int queue = i % hisi_hba->queue_count;
@@ -684,7 +678,7 @@ static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device)
 		i++;
 	}
 	hisi_hba->last_dev_id = i;
-	spin_unlock_irqrestore(&hisi_hba->lock, flags);
+	spin_unlock(&hisi_hba->lock);
 
 	return sas_dev;
 }
@@ -1233,10 +1227,10 @@ static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
 					struct hisi_sas_cq *cq =
 					       &hisi_hba->cq[slot->dlvry_queue];
 					/*
-					 * flush tasklet to avoid free'ing task
+					 * sync irq to avoid free'ing task
 					 * before using task in IO completion
 					 */
-					tasklet_kill(&cq->tasklet);
+					synchronize_irq(cq->irq_no);
 					slot->task = NULL;
 				}
 
@@ -1626,11 +1620,11 @@ static int hisi_sas_abort_task(struct sas_task *task)
 
 		if (slot) {
 			/*
-			 * flush tasklet to avoid free'ing task
+			 * sync irq to avoid free'ing task
 			 * before using task in IO completion
 			 */
 			cq = &hisi_hba->cq[slot->dlvry_queue];
-			tasklet_kill(&cq->tasklet);
+			synchronize_irq(cq->irq_no);
 		}
 		spin_unlock_irqrestore(&task->task_state_lock, flags);
 		rc = TMF_RESP_FUNC_COMPLETE;
@@ -1694,10 +1688,10 @@ static int hisi_sas_abort_task(struct sas_task *task)
 		if (((rc < 0) || (rc == TMF_RESP_FUNC_FAILED)) &&
 					task->lldd_task) {
 			/*
-			 * flush tasklet to avoid free'ing task
+			 * sync irq to avoid free'ing task
 			 * before using task in IO completion
 			 */
-			tasklet_kill(&cq->tasklet);
+			synchronize_irq(cq->irq_no);
 			slot->task = NULL;
 		}
 	}
@@ -1965,14 +1959,14 @@ hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, int device_id,
 	slot_idx = rc;
 	slot = &hisi_hba->slot_info[slot_idx];
 
-	spin_lock_irqsave(&dq->lock, flags);
+	spin_lock(&dq->lock);
 	wr_q_index = dq->wr_point;
 	dq->wr_point = (dq->wr_point + 1) % HISI_SAS_QUEUE_SLOTS;
 	list_add_tail(&slot->delivery, &dq->list);
-	spin_unlock_irqrestore(&dq->lock, flags);
+	spin_unlock(&dq->lock);
-	spin_lock_irqsave(&sas_dev->lock, flags);
+	spin_lock(&sas_dev->lock);
 	list_add_tail(&slot->entry, &sas_dev->list);
-	spin_unlock_irqrestore(&sas_dev->lock, flags);
+	spin_unlock(&sas_dev->lock);
 
 	dlvry_queue = dq->id;
 	dlvry_queue_slot = wr_q_index;
@@ -2001,9 +1995,9 @@ hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, int device_id,
 	spin_unlock_irqrestore(&task->task_state_lock, flags);
 	WRITE_ONCE(slot->ready, 1);
 	/* send abort command to the chip */
-	spin_lock_irqsave(&dq->lock, flags);
+	spin_lock(&dq->lock);
 	hisi_hba->hw->start_delivery(dq);
-	spin_unlock_irqrestore(&dq->lock, flags);
+	spin_unlock(&dq->lock);
 
 	return 0;
 
@@ -2076,10 +2070,10 @@ _hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
 				struct hisi_sas_cq *cq =
 					&hisi_hba->cq[slot->dlvry_queue];
 				/*
-				 * flush tasklet to avoid free'ing task
+				 * sync irq to avoid free'ing task
 				 * before using task in IO completion
 				 */
-				tasklet_kill(&cq->tasklet);
+				synchronize_irq(cq->irq_no);
 				slot->task = NULL;
 			}
 			dev_err(dev, "internal task abort: timeout and not done.\n");
@@ -2131,7 +2125,7 @@ hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
 	case HISI_SAS_INT_ABT_DEV:
 		for (i = 0; i < hisi_hba->cq_nvecs; i++) {
 			struct hisi_sas_cq *cq = &hisi_hba->cq[i];
-			const struct cpumask *mask = cq->pci_irq_mask;
+			const struct cpumask *mask = cq->irq_mask;
 
 			if (mask && !cpumask_intersects(cpu_online_mask, mask))
 				continue;
@@ -2225,17 +2219,17 @@ void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy)
 }
 EXPORT_SYMBOL_GPL(hisi_sas_phy_down);
 
-void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba)
+void hisi_sas_sync_irqs(struct hisi_hba *hisi_hba)
 {
 	int i;
 
 	for (i = 0; i < hisi_hba->cq_nvecs; i++) {
 		struct hisi_sas_cq *cq = &hisi_hba->cq[i];
 
-		tasklet_kill(&cq->tasklet);
+		synchronize_irq(cq->irq_no);
 	}
 }
-EXPORT_SYMBOL_GPL(hisi_sas_kill_tasklets);
+EXPORT_SYMBOL_GPL(hisi_sas_sync_irqs);
 
 int hisi_sas_host_reset(struct Scsi_Host *shost, int reset_type)
 {
@@ -3936,7 +3930,7 @@ void hisi_sas_debugfs_init(struct hisi_hba *hisi_hba)
 
 	hisi_hba->debugfs_dir = debugfs_create_dir(dev_name(dev),
 						   hisi_sas_debugfs_dir);
-	debugfs_create_file("trigger_dump", 0600,
+	debugfs_create_file("trigger_dump", 0200,
 			    hisi_hba->debugfs_dir,
 			    hisi_hba,
 			    &hisi_sas_debugfs_trigger_dump_fops);

drivers/scsi/hisi_sas/hisi_sas_v1_hw.c

@@ -1772,6 +1772,9 @@ static struct scsi_host_template sht_v1_hw = {
 	.eh_target_reset_handler = sas_eh_target_reset_handler,
 	.target_destroy		= sas_target_destroy,
 	.ioctl			= sas_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl		= sas_ioctl,
+#endif
 	.shost_attrs		= host_attrs_v1_hw,
 	.host_reset             = hisi_sas_host_reset,
 };

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

@@ -773,7 +773,6 @@ slot_index_alloc_quirk_v2_hw(struct hisi_hba *hisi_hba,
 	struct hisi_sas_device *sas_dev = device->lldd_dev;
 	int sata_idx = sas_dev->sata_idx;
 	int start, end;
-	unsigned long flags;
 
 	if (!sata_dev) {
 		/*
@@ -797,12 +796,12 @@ slot_index_alloc_quirk_v2_hw(struct hisi_hba *hisi_hba,
 		end = 64 * (sata_idx + 2);
 	}
 
-	spin_lock_irqsave(&hisi_hba->lock, flags);
+	spin_lock(&hisi_hba->lock);
 	while (1) {
 		start = find_next_zero_bit(bitmap,
 					hisi_hba->slot_index_count, start);
 		if (start >= end) {
-			spin_unlock_irqrestore(&hisi_hba->lock, flags);
+			spin_unlock(&hisi_hba->lock);
 			return -SAS_QUEUE_FULL;
 		}
 		/*
@@ -814,7 +813,7 @@ slot_index_alloc_quirk_v2_hw(struct hisi_hba *hisi_hba,
 	}
 
 	set_bit(start, bitmap);
-	spin_unlock_irqrestore(&hisi_hba->lock, flags);
+	spin_unlock(&hisi_hba->lock);
 	return start;
 }
 
@@ -843,9 +842,8 @@ hisi_sas_device *alloc_dev_quirk_v2_hw(struct domain_device *device)
 	struct hisi_sas_device *sas_dev = NULL;
 	int i, sata_dev = dev_is_sata(device);
 	int sata_idx = -1;
-	unsigned long flags;
 
-	spin_lock_irqsave(&hisi_hba->lock, flags);
+	spin_lock(&hisi_hba->lock);
 
 	if (sata_dev)
 		if (!sata_index_alloc_v2_hw(hisi_hba, &sata_idx))
@@ -876,7 +874,7 @@ hisi_sas_device *alloc_dev_quirk_v2_hw(struct domain_device *device)
 	}
 
 out:
-	spin_unlock_irqrestore(&hisi_hba->lock, flags);
+	spin_unlock(&hisi_hba->lock);
 
 	return sas_dev;
 }
@@ -3111,9 +3109,9 @@ static irqreturn_t fatal_axi_int_v2_hw(int irq_no, void *p)
 	return IRQ_HANDLED;
 }
 
-static void cq_tasklet_v2_hw(unsigned long val)
+static irqreturn_t  cq_thread_v2_hw(int irq_no, void *p)
 {
-	struct hisi_sas_cq *cq = (struct hisi_sas_cq *)val;
+	struct hisi_sas_cq *cq = p;
 	struct hisi_hba *hisi_hba = cq->hisi_hba;
 	struct hisi_sas_slot *slot;
 	struct hisi_sas_itct *itct;
@@ -3181,6 +3179,8 @@ static void cq_tasklet_v2_hw(unsigned long val)
 	/* update rd_point */
 	cq->rd_point = rd_point;
 	hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
+
+	return IRQ_HANDLED;
 }
 
 static irqreturn_t cq_interrupt_v2_hw(int irq_no, void *p)
@@ -3191,9 +3191,7 @@ static irqreturn_t cq_interrupt_v2_hw(int irq_no, void *p)
 
 	hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
 
-	tasklet_schedule(&cq->tasklet);
+	return IRQ_WAKE_THREAD;
-
-	return IRQ_HANDLED;
 }
 
 static irqreturn_t sata_int_v2_hw(int irq_no, void *p)
@@ -3360,18 +3358,18 @@ static int interrupt_init_v2_hw(struct hisi_hba *hisi_hba)
 
 	for (queue_no = 0; queue_no < hisi_hba->queue_count; queue_no++) {
 		struct hisi_sas_cq *cq = &hisi_hba->cq[queue_no];
-		struct tasklet_struct *t = &cq->tasklet;
 
-		irq = irq_map[queue_no + 96];
+		cq->irq_no = irq_map[queue_no + 96];
-		rc = devm_request_irq(dev, irq, cq_interrupt_v2_hw, 0,
+		rc = devm_request_threaded_irq(dev, cq->irq_no,
-				      DRV_NAME " cq", cq);
+					       cq_interrupt_v2_hw,
+					       cq_thread_v2_hw, IRQF_ONESHOT,
+					       DRV_NAME " cq", cq);
 		if (rc) {
 			dev_err(dev, "irq init: could not request cq interrupt %d, rc=%d\n",
 				irq, rc);
 			rc = -ENOENT;
 			goto err_out;
 		}
-		tasklet_init(t, cq_tasklet_v2_hw, (unsigned long)cq);
 	}
 
 	hisi_hba->cq_nvecs = hisi_hba->queue_count;
@@ -3432,7 +3430,6 @@ static int soft_reset_v2_hw(struct hisi_hba *hisi_hba)
 
 	interrupt_disable_v2_hw(hisi_hba);
 	hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0x0);
-	hisi_sas_kill_tasklets(hisi_hba);
 
 	hisi_sas_stop_phys(hisi_hba);
 
@@ -3551,6 +3548,9 @@ static struct scsi_host_template sht_v2_hw = {
 	.eh_target_reset_handler = sas_eh_target_reset_handler,
 	.target_destroy		= sas_target_destroy,
 	.ioctl			= sas_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl		= sas_ioctl,
+#endif
 	.shost_attrs		= host_attrs_v2_hw,
 	.host_reset		= hisi_sas_host_reset,
 };
@@ -3603,11 +3603,6 @@ static int hisi_sas_v2_probe(struct platform_device *pdev)
 
 static int hisi_sas_v2_remove(struct platform_device *pdev)
 {
-	struct sas_ha_struct *sha = platform_get_drvdata(pdev);
-	struct hisi_hba *hisi_hba = sha->lldd_ha;
-
-	hisi_sas_kill_tasklets(hisi_hba);
-
 	return hisi_sas_remove(pdev);
 }
 

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

@@ -495,6 +495,13 @@ struct hisi_sas_err_record_v3 {
 #define BASE_VECTORS_V3_HW  16
 #define MIN_AFFINE_VECTORS_V3_HW  (BASE_VECTORS_V3_HW + 1)
 
+#define CHNL_INT_STS_MSK	0xeeeeeeee
+#define CHNL_INT_STS_PHY_MSK	0xe
+#define CHNL_INT_STS_INT0_MSK BIT(1)
+#define CHNL_INT_STS_INT1_MSK BIT(2)
+#define CHNL_INT_STS_INT2_MSK BIT(3)
+#define CHNL_WIDTH 4
+
 enum {
 	DSM_FUNC_ERR_HANDLE_MSI = 0,
 };
@@ -1819,19 +1826,19 @@ static irqreturn_t int_chnl_int_v3_hw(int irq_no, void *p)
 	int phy_no = 0;
 
 	irq_msk = hisi_sas_read32(hisi_hba, CHNL_INT_STATUS)
-				& 0xeeeeeeee;
+		  & CHNL_INT_STS_MSK;
 
 	while (irq_msk) {
-		if (irq_msk & (2 << (phy_no * 4)))
+		if (irq_msk & (CHNL_INT_STS_INT0_MSK << (phy_no * CHNL_WIDTH)))
 			handle_chl_int0_v3_hw(hisi_hba, phy_no);
 
-		if (irq_msk & (4 << (phy_no * 4)))
+		if (irq_msk & (CHNL_INT_STS_INT1_MSK << (phy_no * CHNL_WIDTH)))
 			handle_chl_int1_v3_hw(hisi_hba, phy_no);
 
-		if (irq_msk & (8 << (phy_no * 4)))
+		if (irq_msk & (CHNL_INT_STS_INT2_MSK << (phy_no * CHNL_WIDTH)))
 			handle_chl_int2_v3_hw(hisi_hba, phy_no);
 
-		irq_msk &= ~(0xe << (phy_no * 4));
+		irq_msk &= ~(CHNL_INT_STS_PHY_MSK << (phy_no * CHNL_WIDTH));
 		phy_no++;
 	}
 
@@ -2299,9 +2306,9 @@ out:
 	return sts;
 }
 
-static void cq_tasklet_v3_hw(unsigned long val)
+static irqreturn_t  cq_thread_v3_hw(int irq_no, void *p)
 {
-	struct hisi_sas_cq *cq = (struct hisi_sas_cq *)val;
+	struct hisi_sas_cq *cq = p;
 	struct hisi_hba *hisi_hba = cq->hisi_hba;
 	struct hisi_sas_slot *slot;
 	struct hisi_sas_complete_v3_hdr *complete_queue;
@@ -2338,6 +2345,8 @@ static void cq_tasklet_v3_hw(unsigned long val)
 	/* update rd_point */
 	cq->rd_point = rd_point;
 	hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
+
+	return IRQ_HANDLED;
 }
 
 static irqreturn_t cq_interrupt_v3_hw(int irq_no, void *p)
@@ -2348,9 +2357,7 @@ static irqreturn_t cq_interrupt_v3_hw(int irq_no, void *p)
 
 	hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
 
-	tasklet_schedule(&cq->tasklet);
+	return IRQ_WAKE_THREAD;
-
-	return IRQ_HANDLED;
 }
 
 static void setup_reply_map_v3_hw(struct hisi_hba *hisi_hba, int nvecs)
@@ -2365,7 +2372,7 @@ static void setup_reply_map_v3_hw(struct hisi_hba *hisi_hba, int nvecs)
 					    BASE_VECTORS_V3_HW);
 		if (!mask)
 			goto fallback;
-		cq->pci_irq_mask = mask;
+		cq->irq_mask = mask;
 		for_each_cpu(cpu, mask)
 			hisi_hba->reply_map[cpu] = queue;
 	}
@@ -2389,6 +2396,8 @@ static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba)
 			.pre_vectors = BASE_VECTORS_V3_HW,
 		};
 
+		dev_info(dev, "Enable MSI auto-affinity\n");
+
 		min_msi = MIN_AFFINE_VECTORS_V3_HW;
 
 		hisi_hba->reply_map = devm_kcalloc(dev, nr_cpu_ids,
@@ -2441,15 +2450,20 @@ static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba)
 		goto free_irq_vectors;
 	}
 
-	/* Init tasklets for cq only */
+	if (hisi_sas_intr_conv)
+		dev_info(dev, "Enable interrupt converge\n");
+
 	for (i = 0; i < hisi_hba->cq_nvecs; i++) {
 		struct hisi_sas_cq *cq = &hisi_hba->cq[i];
-		struct tasklet_struct *t = &cq->tasklet;
 		int nr = hisi_sas_intr_conv ? 16 : 16 + i;
-		unsigned long irqflags = hisi_sas_intr_conv ? IRQF_SHARED : 0;
+		unsigned long irqflags = hisi_sas_intr_conv ? IRQF_SHARED :
+							      IRQF_ONESHOT;
 
-		rc = devm_request_irq(dev, pci_irq_vector(pdev, nr),
+		cq->irq_no = pci_irq_vector(pdev, nr);
-				      cq_interrupt_v3_hw, irqflags,
+		rc = devm_request_threaded_irq(dev, cq->irq_no,
+				      cq_interrupt_v3_hw,
+				      cq_thread_v3_hw,
+				      irqflags,
 				      DRV_NAME " cq", cq);
 		if (rc) {
 			dev_err(dev, "could not request cq%d interrupt, rc=%d\n",
@@ -2457,8 +2471,6 @@ static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba)
 			rc = -ENOENT;
 			goto free_irq_vectors;
 		}
-
-		tasklet_init(t, cq_tasklet_v3_hw, (unsigned long)cq);
 	}
 
 	return 0;
@@ -2534,7 +2546,6 @@ static int disable_host_v3_hw(struct hisi_hba *hisi_hba)
 
 	interrupt_disable_v3_hw(hisi_hba);
 	hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0x0);
-	hisi_sas_kill_tasklets(hisi_hba);
 
 	hisi_sas_stop_phys(hisi_hba);
 
@@ -2910,7 +2921,7 @@ static void debugfs_snapshot_prepare_v3_hw(struct hisi_hba *hisi_hba)
 
 	wait_cmds_complete_timeout_v3_hw(hisi_hba, 100, 5000);
 
-	hisi_sas_kill_tasklets(hisi_hba);
+	hisi_sas_sync_irqs(hisi_hba);
 }
 
 static void debugfs_snapshot_restore_v3_hw(struct hisi_hba *hisi_hba)
@@ -3075,6 +3086,9 @@ static struct scsi_host_template sht_v3_hw = {
 	.eh_target_reset_handler = sas_eh_target_reset_handler,
 	.target_destroy		= sas_target_destroy,
 	.ioctl			= sas_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl		= sas_ioctl,
+#endif
 	.shost_attrs		= host_attrs_v3_hw,
 	.tag_alloc_policy	= BLK_TAG_ALLOC_RR,
 	.host_reset             = hisi_sas_host_reset,
@@ -3309,7 +3323,6 @@ static void hisi_sas_v3_remove(struct pci_dev *pdev)
 	sas_remove_host(sha->core.shost);
 
 	hisi_sas_v3_destroy_irqs(pdev, hisi_hba);
-	hisi_sas_kill_tasklets(hisi_hba);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
 	hisi_sas_free(hisi_hba);

drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c

@@ -1877,7 +1877,6 @@ static void ibmvscsis_send_messages(struct scsi_info *vscsi)
 	 */
 	struct viosrp_crq *crq = (struct viosrp_crq *)&msg_hi;
 	struct ibmvscsis_cmd *cmd, *nxt;
-	struct iu_entry *iue;
 	long rc = ADAPT_SUCCESS;
 	bool retry = false;
 
@@ -1931,8 +1930,6 @@ static void ibmvscsis_send_messages(struct scsi_info *vscsi)
 					 */
 					vscsi->credit += 1;
 				} else {
-					iue = cmd->iue;
-
 					crq->valid = VALID_CMD_RESP_EL;
 					crq->format = cmd->rsp.format;
 
@@ -3796,7 +3793,6 @@ static int ibmvscsis_queue_data_in(struct se_cmd *se_cmd)
 						 se_cmd);
 	struct iu_entry *iue = cmd->iue;
 	struct scsi_info *vscsi = cmd->adapter;
-	char *sd;
 	uint len = 0;
 	int rc;
 
@@ -3804,7 +3800,6 @@ static int ibmvscsis_queue_data_in(struct se_cmd *se_cmd)
 			       1);
 	if (rc) {
 		dev_err(&vscsi->dev, "srp_transfer_data failed: %d\n", rc);
-		sd = se_cmd->sense_buffer;
 		se_cmd->scsi_sense_length = 18;
 		memset(se_cmd->sense_buffer, 0, se_cmd->scsi_sense_length);
 		/* Logical Unit Communication Time-out asc/ascq = 0x0801 */

drivers/scsi/initio.c

@@ -1640,7 +1640,7 @@ static int initio_state_6(struct initio_host * host)
  *
  */
 
-int initio_state_7(struct initio_host * host)
+static int initio_state_7(struct initio_host * host)
 {
 	int cnt, i;
 

drivers/scsi/ipr.c

@@ -6727,6 +6727,9 @@ static struct scsi_host_template driver_template = {
 	.name = "IPR",
 	.info = ipr_ioa_info,
 	.ioctl = ipr_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = ipr_ioctl,
+#endif
 	.queuecommand = ipr_queuecommand,
 	.eh_abort_handler = ipr_eh_abort,
 	.eh_device_reset_handler = ipr_eh_dev_reset,

drivers/scsi/isci/init.c

@@ -168,6 +168,9 @@ static struct scsi_host_template isci_sht = {
 	.eh_target_reset_handler        = sas_eh_target_reset_handler,
 	.target_destroy			= sas_target_destroy,
 	.ioctl				= sas_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl			= sas_ioctl,
+#endif
 	.shost_attrs			= isci_host_attrs,
 	.track_queue_depth		= 1,
 };

drivers/scsi/iscsi_tcp.c

@@ -887,6 +887,10 @@ free_host:
 static void iscsi_sw_tcp_session_destroy(struct iscsi_cls_session *cls_session)
 {
 	struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
+	struct iscsi_session *session = cls_session->dd_data;
+
+	if (WARN_ON_ONCE(session->leadconn))
+		return;
 
 	iscsi_tcp_r2tpool_free(cls_session->dd_data);
 	iscsi_session_teardown(cls_session);

drivers/scsi/libsas/sas_ata.c

@@ -137,7 +137,7 @@ static void sas_ata_task_done(struct sas_task *task)
 	} else {
 		ac = sas_to_ata_err(stat);
 		if (ac) {
-			pr_warn("%s: SAS error %x\n", __func__, stat->stat);
+			pr_warn("%s: SAS error 0x%x\n", __func__, stat->stat);
 			/* We saw a SAS error. Send a vague error. */
 			if (!link->sactive) {
 				qc->err_mask = ac;

drivers/scsi/libsas/sas_discover.c

@@ -179,7 +179,7 @@ int sas_notify_lldd_dev_found(struct domain_device *dev)
 
 	res = i->dft->lldd_dev_found(dev);
 	if (res) {
-		pr_warn("driver on host %s cannot handle device %llx, error:%d\n",
+		pr_warn("driver on host %s cannot handle device %016llx, error:%d\n",
 			dev_name(sas_ha->dev),
 			SAS_ADDR(dev->sas_addr), res);
 	}

drivers/scsi/libsas/sas_expander.c

@@ -500,7 +500,7 @@ static int sas_ex_general(struct domain_device *dev)
 		ex_assign_report_general(dev, rg_resp);
 
 		if (dev->ex_dev.configuring) {
-			pr_debug("RG: ex %llx self-configuring...\n",
+			pr_debug("RG: ex %016llx self-configuring...\n",
 				 SAS_ADDR(dev->sas_addr));
 			schedule_timeout_interruptible(5*HZ);
 		} else
@@ -881,7 +881,7 @@ static struct domain_device *sas_ex_discover_end_dev(
 
 		res = sas_discover_end_dev(child);
 		if (res) {
-			pr_notice("sas_discover_end_dev() for device %16llx at %016llx:%02d returned 0x%x\n",
+			pr_notice("sas_discover_end_dev() for device %016llx at %016llx:%02d returned 0x%x\n",
 				  SAS_ADDR(child->sas_addr),
 				  SAS_ADDR(parent->sas_addr), phy_id, res);
 			goto out_list_del;

drivers/scsi/libsas/sas_internal.h

@@ -107,7 +107,7 @@ static inline void sas_smp_host_handler(struct bsg_job *job,
 
 static inline void sas_fail_probe(struct domain_device *dev, const char *func, int err)
 {
-	pr_warn("%s: for %s device %16llx returned %d\n",
+	pr_warn("%s: for %s device %016llx returned %d\n",
 		func, dev->parent ? "exp-attached" :
 		"direct-attached",
 		SAS_ADDR(dev->sas_addr), err);

drivers/scsi/libsas/sas_port.c

@@ -165,7 +165,7 @@ static void sas_form_port(struct asd_sas_phy *phy)
 	}
 	sas_port_add_phy(port->port, phy->phy);
 
-	pr_debug("%s added to %s, phy_mask:0x%x (%16llx)\n",
+	pr_debug("%s added to %s, phy_mask:0x%x (%016llx)\n",
 		 dev_name(&phy->phy->dev), dev_name(&port->port->dev),
 		 port->phy_mask,
 		 SAS_ADDR(port->attached_sas_addr));

drivers/scsi/libsas/sas_scsi_host.c

@@ -330,7 +330,7 @@ static int sas_recover_lu(struct domain_device *dev, struct scsi_cmnd *cmd)
 
 	int_to_scsilun(cmd->device->lun, &lun);
 
-	pr_notice("eh: device %llx LUN %llx has the task\n",
+	pr_notice("eh: device %016llx LUN 0x%llx has the task\n",
 		  SAS_ADDR(dev->sas_addr),
 		  cmd->device->lun);
 
@@ -615,7 +615,7 @@ static void sas_eh_handle_sas_errors(struct Scsi_Host *shost, struct list_head *
  reset:
 			tmf_resp = sas_recover_lu(task->dev, cmd);
 			if (tmf_resp == TMF_RESP_FUNC_COMPLETE) {
-				pr_notice("dev %016llx LU %llx is recovered\n",
+				pr_notice("dev %016llx LU 0x%llx is recovered\n",
 					  SAS_ADDR(task->dev),
 					  cmd->device->lun);
 				sas_eh_finish_cmd(cmd);
@@ -666,7 +666,7 @@ static void sas_eh_handle_sas_errors(struct Scsi_Host *shost, struct list_head *
 			 * of effort could recover from errors.  Quite
 			 * possibly the HA just disappeared.
 			 */
-			pr_err("error from  device %llx, LUN %llx couldn't be recovered in any way\n",
+			pr_err("error from device %016llx, LUN 0x%llx couldn't be recovered in any way\n",
 			       SAS_ADDR(task->dev->sas_addr),
 			       cmd->device->lun);
 
@@ -851,7 +851,7 @@ int sas_slave_configure(struct scsi_device *scsi_dev)
 	if (scsi_dev->tagged_supported) {
 		scsi_change_queue_depth(scsi_dev, SAS_DEF_QD);
 	} else {
-		pr_notice("device %llx, LUN %llx doesn't support TCQ\n",
+		pr_notice("device %016llx, LUN 0x%llx doesn't support TCQ\n",
 			  SAS_ADDR(dev->sas_addr), scsi_dev->lun);
 		scsi_change_queue_depth(scsi_dev, 1);
 	}

drivers/scsi/libsas/sas_task.c

@@ -27,7 +27,7 @@ void sas_ssp_task_response(struct device *dev, struct sas_task *task,
 		memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size);
 
 		if (iu->status != SAM_STAT_CHECK_CONDITION)
-			dev_warn(dev, "dev %llx sent sense data, but stat(%x) is not CHECK CONDITION\n",
+			dev_warn(dev, "dev %016llx sent sense data, but stat(0x%x) is not CHECK CONDITION\n",
 				 SAS_ADDR(task->dev->sas_addr), iu->status);
 	}
 	else

drivers/scsi/lpfc/lpfc.h

@@ -1223,6 +1223,8 @@ struct lpfc_hba {
 #define LPFC_POLL_HB	1		/* slowpath heartbeat */
 #define LPFC_POLL_FASTPATH	0	/* called from fastpath */
 #define LPFC_POLL_SLOWPATH	1	/* called from slowpath */
+
+	char os_host_name[MAXHOSTNAMELEN];
 };
 
 static inline struct Scsi_Host *

drivers/scsi/lpfc/lpfc_attr.c

@@ -4123,14 +4123,13 @@ lpfc_topology_store(struct device *dev, struct device_attribute *attr,
 		/*
 		 * The 'topology' is not a configurable parameter if :
 		 *   - persistent topology enabled
-		 *   - G7 adapters
+		 *   - G7/G6 with no private loop support
-		 *   - G6 with no private loop support
 		 */
 
-		if (((phba->hba_flag & HBA_PERSISTENT_TOPO) ||
+		if ((phba->hba_flag & HBA_PERSISTENT_TOPO ||
 		     (!phba->sli4_hba.pc_sli4_params.pls &&
-		     phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC) ||
+		     (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC ||
-		     phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC) &&
+		     phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC))) &&
 		    val == 4) {
 			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
 				"3114 Loop mode not supported\n");

drivers/scsi/lpfc/lpfc_crtn.h

@@ -180,7 +180,7 @@ int lpfc_issue_gidft(struct lpfc_vport *vport);
 int lpfc_get_gidft_type(struct lpfc_vport *vport, struct lpfc_iocbq *iocbq);
 int lpfc_ns_cmd(struct lpfc_vport *, int, uint8_t, uint32_t);
 int lpfc_fdmi_cmd(struct lpfc_vport *, struct lpfc_nodelist *, int, uint32_t);
-void lpfc_fdmi_num_disc_check(struct lpfc_vport *);
+void lpfc_fdmi_change_check(struct lpfc_vport *vport);
 void lpfc_delayed_disc_tmo(struct timer_list *);
 void lpfc_delayed_disc_timeout_handler(struct lpfc_vport *);
 

drivers/scsi/lpfc/lpfc_ct.c

@@ -1493,33 +1493,35 @@ int
 lpfc_vport_symbolic_node_name(struct lpfc_vport *vport, char *symbol,
 	size_t size)
 {
-	char fwrev[FW_REV_STR_SIZE];
+	char fwrev[FW_REV_STR_SIZE] = {0};
-	int n;
+	char tmp[MAXHOSTNAMELEN] = {0};
+
+	memset(symbol, 0, size);
+
+	scnprintf(tmp, sizeof(tmp), "Emulex %s", vport->phba->ModelName);
+	if (strlcat(symbol, tmp, size) >= size)
+		goto buffer_done;
 
 	lpfc_decode_firmware_rev(vport->phba, fwrev, 0);
+	scnprintf(tmp, sizeof(tmp), " FV%s", fwrev);
+	if (strlcat(symbol, tmp, size) >= size)
+		goto buffer_done;
 
-	n = scnprintf(symbol, size, "Emulex %s", vport->phba->ModelName);
+	scnprintf(tmp, sizeof(tmp), " DV%s", lpfc_release_version);
-	if (size < n)
+	if (strlcat(symbol, tmp, size) >= size)
-		return n;
+		goto buffer_done;
 
-	n += scnprintf(symbol + n, size - n, " FV%s", fwrev);
+	scnprintf(tmp, sizeof(tmp), " HN:%s", vport->phba->os_host_name);
-	if (size < n)
+	if (strlcat(symbol, tmp, size) >= size)
-		return n;
+		goto buffer_done;
-
-	n += scnprintf(symbol + n, size - n, " DV%s.",
-		      lpfc_release_version);
-	if (size < n)
-		return n;
-
-	n += scnprintf(symbol + n, size - n, " HN:%s.",
-		      init_utsname()->nodename);
-	if (size < n)
-		return n;
 
 	/* Note :- OS name is "Linux" */
-	n += scnprintf(symbol + n, size - n, " OS:%s",
+	scnprintf(tmp, sizeof(tmp), " OS:%s", init_utsname()->sysname);
-		      init_utsname()->sysname);
+	strlcat(symbol, tmp, size);
-	return n;
+
+buffer_done:
+	return strnlen(symbol, size);
+
 }
 
 static uint32_t
@@ -1998,14 +2000,16 @@ lpfc_cmpl_ct_disc_fdmi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 
 
 /**
- * lpfc_fdmi_num_disc_check - Check how many mapped NPorts we are connected to
+ * lpfc_fdmi_change_check - Check for changed FDMI parameters
  * @vport: pointer to a host virtual N_Port data structure.
  *
- * Called from hbeat timeout routine to check if the number of discovered
+ * Check how many mapped NPorts we are connected to
- * ports has changed. If so, re-register thar port Attribute.
+ * Check if our hostname changed
+ * Called from hbeat timeout routine to check if any FDMI parameters
+ * changed. If so, re-register those Attributes.
  */
 void
-lpfc_fdmi_num_disc_check(struct lpfc_vport *vport)
+lpfc_fdmi_change_check(struct lpfc_vport *vport)
 {
 	struct lpfc_hba *phba = vport->phba;
 	struct lpfc_nodelist *ndlp;
@@ -2018,17 +2022,41 @@ lpfc_fdmi_num_disc_check(struct lpfc_vport *vport)
 	if (!(vport->fc_flag & FC_FABRIC))
 		return;
 
+	ndlp = lpfc_findnode_did(vport, FDMI_DID);
+	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
+		return;
+
+	/* Check if system hostname changed */
+	if (strcmp(phba->os_host_name, init_utsname()->nodename)) {
+		memset(phba->os_host_name, 0, sizeof(phba->os_host_name));
+		scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s",
+			  init_utsname()->nodename);
+		lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
+
+		/* Since this effects multiple HBA and PORT attributes, we need
+		 * de-register and go thru the whole FDMI registration cycle.
+		 * DHBA -> DPRT -> RHBA -> RPA  (physical port)
+		 * DPRT -> RPRT (vports)
+		 */
+		if (vport->port_type == LPFC_PHYSICAL_PORT)
+			lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
+		else
+			lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
+
+		/* Since this code path registers all the port attributes
+		 * we can just return without further checking.
+		 */
+		return;
+	}
+
 	if (!(vport->fdmi_port_mask & LPFC_FDMI_PORT_ATTR_num_disc))
 		return;
 
+	/* Check if the number of mapped NPorts changed */
 	cnt = lpfc_find_map_node(vport);
 	if (cnt == vport->fdmi_num_disc)
 		return;
 
-	ndlp = lpfc_findnode_did(vport, FDMI_DID);
-	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
-		return;
-
 	if (vport->port_type == LPFC_PHYSICAL_PORT) {
 		lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPA,
 			      LPFC_FDMI_PORT_ATTR_num_disc);
@@ -2616,8 +2644,8 @@ lpfc_fdmi_port_attr_host_name(struct lpfc_vport *vport,
 	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
 	memset(ae, 0, 256);
 
-	snprintf(ae->un.AttrString, sizeof(ae->un.AttrString), "%s",
+	scnprintf(ae->un.AttrString, sizeof(ae->un.AttrString), "%s",
-		 init_utsname()->nodename);
+		  vport->phba->os_host_name);
 
 	len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
 	len += (len & 3) ? (4 - (len & 3)) : 4;

drivers/scsi/lpfc/lpfc_debugfs.c

@@ -2085,6 +2085,8 @@ static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba,
 	int copied = 0;
 	struct lpfc_dmabuf *dmabuf, *next;
 
+	memset(buffer, 0, size);
+
 	spin_lock_irq(&phba->hbalock);
 	if (phba->ras_fwlog.state != ACTIVE) {
 		spin_unlock_irq(&phba->hbalock);
@@ -2094,10 +2096,15 @@ static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba,
 
 	list_for_each_entry_safe(dmabuf, next,
 				 &phba->ras_fwlog.fwlog_buff_list, list) {
+		/* Check if copying will go over size and a '\0' char */
+		if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) {
+			memcpy(buffer + copied, dmabuf->virt,
+			       size - copied - 1);
+			copied += size - copied - 1;
+			break;
+		}
 		memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE);
 		copied += LPFC_RAS_MAX_ENTRY_SIZE;
-		if (size > copied)
-			break;
 	}
 	return copied;
 }

drivers/scsi/lpfc/lpfc_hbadisc.c

@@ -28,6 +28,7 @@
 #include <linux/kthread.h>
 #include <linux/interrupt.h>
 #include <linux/lockdep.h>
+#include <linux/utsname.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_device.h>
@@ -3315,6 +3316,10 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
 		lpfc_sli4_clear_fcf_rr_bmask(phba);
 	}
 
+	/* Prepare for LINK up registrations */
+	memset(phba->os_host_name, 0, sizeof(phba->os_host_name));
+	scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s",
+		  init_utsname()->nodename);
 	return;
 out:
 	lpfc_vport_set_state(vport, FC_VPORT_FAILED);

drivers/scsi/lpfc/lpfc_hw4.h

@@ -3925,6 +3925,9 @@ struct lpfc_mbx_wr_object {
 #define LPFC_CHANGE_STATUS_FW_RESET		0x02
 #define LPFC_CHANGE_STATUS_PORT_MIGRATION	0x04
 #define LPFC_CHANGE_STATUS_PCI_RESET		0x05
+#define lpfc_wr_object_csf_SHIFT		8
+#define lpfc_wr_object_csf_MASK			0x00000001
+#define lpfc_wr_object_csf_WORD			word5
 		} response;
 	} u;
 };

drivers/scsi/lpfc/lpfc_init.c

@@ -1362,7 +1362,7 @@ lpfc_hb_timeout_handler(struct lpfc_hba *phba)
 	if (vports != NULL)
 		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
 			lpfc_rcv_seq_check_edtov(vports[i]);
-			lpfc_fdmi_num_disc_check(vports[i]);
+			lpfc_fdmi_change_check(vports[i]);
 		}
 	lpfc_destroy_vport_work_array(phba, vports);
 
@@ -8320,14 +8320,6 @@ lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
 	phba->hba_flag |= HBA_PERSISTENT_TOPO;
 	switch (phba->pcidev->device) {
 	case PCI_DEVICE_ID_LANCER_G7_FC:
-		if (tf || (pt == LINK_FLAGS_LOOP)) {
-			/* Invalid values from FW - use driver params */
-			phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
-		} else {
-			/* Prism only supports PT2PT topology */
-			phba->cfg_topology = FLAGS_TOPOLOGY_MODE_PT_PT;
-		}
-		break;
 	case PCI_DEVICE_ID_LANCER_G6_FC:
 		if (!tf) {
 			phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
@@ -10449,6 +10441,8 @@ lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
 	case LPFC_SLI_INTF_IF_TYPE_6:
 		iounmap(phba->sli4_hba.drbl_regs_memmap_p);
 		iounmap(phba->sli4_hba.conf_regs_memmap_p);
+		if (phba->sli4_hba.dpp_regs_memmap_p)
+			iounmap(phba->sli4_hba.dpp_regs_memmap_p);
 		break;
 	case LPFC_SLI_INTF_IF_TYPE_1:
 	default:

drivers/scsi/lpfc/lpfc_nportdisc.c

@@ -308,7 +308,7 @@ lpfc_defer_pt2pt_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *link_mbox)
 				mb->mbxStatus);
 		mempool_free(login_mbox, phba->mbox_mem_pool);
 		mempool_free(link_mbox, phba->mbox_mem_pool);
-		lpfc_sli_release_iocbq(phba, save_iocb);
+		kfree(save_iocb);
 		return;
 	}
 
@@ -325,7 +325,61 @@ lpfc_defer_pt2pt_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *link_mbox)
 	}
 
 	mempool_free(link_mbox, phba->mbox_mem_pool);
-	lpfc_sli_release_iocbq(phba, save_iocb);
+	kfree(save_iocb);
+}
+
+/**
+ * lpfc_defer_tgt_acc - Progress SLI4 target rcv PLOGI handler
+ * @phba: Pointer to HBA context object.
+ * @pmb: Pointer to mailbox object.
+ *
+ * This function provides the unreg rpi mailbox completion handler for a tgt.
+ * The routine frees the memory resources associated with the completed
+ * mailbox command and transmits the ELS ACC.
+ *
+ * This routine is only called if we are SLI4, acting in target
+ * mode and the remote NPort issues the PLOGI after link up.
+ **/
+static void
+lpfc_defer_acc_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+	struct lpfc_vport *vport = pmb->vport;
+	struct lpfc_nodelist *ndlp = pmb->ctx_ndlp;
+	LPFC_MBOXQ_t *mbox = pmb->context3;
+	struct lpfc_iocbq *piocb = NULL;
+	int rc;
+
+	if (mbox) {
+		pmb->context3 = NULL;
+		piocb = mbox->context3;
+		mbox->context3 = NULL;
+	}
+
+	/*
+	 * Complete the unreg rpi mbx request, and update flags.
+	 * This will also restart any deferred events.
+	 */
+	lpfc_nlp_get(ndlp);
+	lpfc_sli4_unreg_rpi_cmpl_clr(phba, pmb);
+
+	if (!piocb) {
+		lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY | LOG_ELS,
+				 "4578 PLOGI ACC fail\n");
+		if (mbox)
+			mempool_free(mbox, phba->mbox_mem_pool);
+		goto out;
+	}
+
+	rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, piocb, ndlp, mbox);
+	if (rc) {
+		lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY | LOG_ELS,
+				 "4579 PLOGI ACC fail %x\n", rc);
+		if (mbox)
+			mempool_free(mbox, phba->mbox_mem_pool);
+	}
+	kfree(piocb);
+out:
+	lpfc_nlp_put(ndlp);
 }
 
 static int
@@ -345,6 +399,7 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	struct lpfc_iocbq *save_iocb;
 	struct ls_rjt stat;
 	uint32_t vid, flag;
+	u16 rpi;
 	int rc, defer_acc;
 
 	memset(&stat, 0, sizeof (struct ls_rjt));
@@ -488,7 +543,7 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 			link_mbox->vport = vport;
 			link_mbox->ctx_ndlp = ndlp;
 
-			save_iocb = lpfc_sli_get_iocbq(phba);
+			save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL);
 			if (!save_iocb)
 				goto out;
 			/* Save info from cmd IOCB used in rsp */
@@ -513,7 +568,36 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		goto out;
 
 	/* Registering an existing RPI behaves differently for SLI3 vs SLI4 */
-	if (phba->sli_rev == LPFC_SLI_REV4)
+	if (phba->nvmet_support && !defer_acc) {
+		link_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+		if (!link_mbox)
+			goto out;
+
+		/* As unique identifiers such as iotag would be overwritten
+		 * with those from the cmdiocb, allocate separate temporary
+		 * storage for the copy.
+		 */
+		save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL);
+		if (!save_iocb)
+			goto out;
+
+		/* Unreg RPI is required for SLI4. */
+		rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
+		lpfc_unreg_login(phba, vport->vpi, rpi, link_mbox);
+		link_mbox->vport = vport;
+		link_mbox->ctx_ndlp = ndlp;
+		link_mbox->mbox_cmpl = lpfc_defer_acc_rsp;
+
+		if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) &&
+		    (!(vport->fc_flag & FC_OFFLINE_MODE)))
+			ndlp->nlp_flag |= NLP_UNREG_INP;
+
+		/* Save info from cmd IOCB used in rsp */
+		memcpy(save_iocb, cmdiocb, sizeof(*save_iocb));
+
+		/* Delay sending ACC till unreg RPI completes. */
+		defer_acc = 1;
+	} else if (phba->sli_rev == LPFC_SLI_REV4)
 		lpfc_unreg_rpi(vport, ndlp);
 
 	rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID,
@@ -553,6 +637,9 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	if ((vport->port_type == LPFC_NPIV_PORT &&
 	     vport->cfg_restrict_login)) {
 
+		/* no deferred ACC */
+		kfree(save_iocb);
+
 		/* In order to preserve RPIs, we want to cleanup
 		 * the default RPI the firmware created to rcv
 		 * this ELS request. The only way to do this is
@@ -571,8 +658,12 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	}
 	if (defer_acc) {
 		/* So the order here should be:
-		 * Issue CONFIG_LINK mbox
+		 * SLI3 pt2pt
-		 * CONFIG_LINK cmpl
+		 *   Issue CONFIG_LINK mbox
+		 *   CONFIG_LINK cmpl
+		 * SLI4 tgt
+		 *   Issue UNREG RPI mbx
+		 *   UNREG RPI cmpl
 		 * Issue PLOGI ACC
 		 * PLOGI ACC cmpl
 		 * Issue REG_LOGIN mbox
@@ -596,10 +687,9 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 out:
 	if (defer_acc)
 		lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
-				"4577 pt2pt discovery failure: %p %p %p\n",
+				"4577 discovery failure: %p %p %p\n",
 				save_iocb, link_mbox, login_mbox);
-	if (save_iocb)
+	kfree(save_iocb);
-		lpfc_sli_release_iocbq(phba, save_iocb);
 	if (link_mbox)
 		mempool_free(link_mbox, phba->mbox_mem_pool);
 	if (login_mbox)

drivers/scsi/lpfc/lpfc_scsi.c

@@ -481,7 +481,7 @@ lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *vport)
 		spin_lock(&qp->abts_io_buf_list_lock);
 		list_for_each_entry_safe(psb, next_psb,
 					 &qp->lpfc_abts_io_buf_list, list) {
-			if (psb->cur_iocbq.iocb_flag == LPFC_IO_NVME)
+			if (psb->cur_iocbq.iocb_flag & LPFC_IO_NVME)
 				continue;
 
 			if (psb->rdata && psb->rdata->pnode &&
@@ -528,7 +528,7 @@ lpfc_sli4_io_xri_aborted(struct lpfc_hba *phba,
 			list_del_init(&psb->list);
 			psb->flags &= ~LPFC_SBUF_XBUSY;
 			psb->status = IOSTAT_SUCCESS;
-			if (psb->cur_iocbq.iocb_flag == LPFC_IO_NVME) {
+			if (psb->cur_iocbq.iocb_flag & LPFC_IO_NVME) {
 				qp->abts_nvme_io_bufs--;
 				spin_unlock(&qp->abts_io_buf_list_lock);
 				spin_unlock_irqrestore(&phba->hbalock, iflag);

drivers/scsi/lpfc/lpfc_sli.c

@@ -4918,8 +4918,17 @@ static int
 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
 {
 	phba->hbq_in_use = 1;
-	phba->hbqs[LPFC_ELS_HBQ].entry_count =
+	/**
-		lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
+	 * Specific case when the MDS diagnostics is enabled and supported.
+	 * The receive buffer count is truncated to manage the incoming
+	 * traffic.
+	 **/
+	if (phba->cfg_enable_mds_diags && phba->mds_diags_support)
+		phba->hbqs[LPFC_ELS_HBQ].entry_count =
+			lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count >> 1;
+	else
+		phba->hbqs[LPFC_ELS_HBQ].entry_count =
+			lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
 	phba->hbq_count = 1;
 	lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
 	/* Initially populate or replenish the HBQs */
@@ -19449,7 +19458,7 @@ lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
 	struct lpfc_mbx_wr_object *wr_object;
 	LPFC_MBOXQ_t *mbox;
 	int rc = 0, i = 0;
-	uint32_t shdr_status, shdr_add_status, shdr_change_status;
+	uint32_t shdr_status, shdr_add_status, shdr_change_status, shdr_csf;
 	uint32_t mbox_tmo;
 	struct lpfc_dmabuf *dmabuf;
 	uint32_t written = 0;
@@ -19506,6 +19515,16 @@ lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
 	if (check_change_status) {
 		shdr_change_status = bf_get(lpfc_wr_object_change_status,
 					    &wr_object->u.response);
+
+		if (shdr_change_status == LPFC_CHANGE_STATUS_FW_RESET ||
+		    shdr_change_status == LPFC_CHANGE_STATUS_PORT_MIGRATION) {
+			shdr_csf = bf_get(lpfc_wr_object_csf,
+					  &wr_object->u.response);
+			if (shdr_csf)
+				shdr_change_status =
+						   LPFC_CHANGE_STATUS_PCI_RESET;
+		}
+
 		switch (shdr_change_status) {
 		case (LPFC_CHANGE_STATUS_PHYS_DEV_RESET):
 			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,

drivers/scsi/lpfc/lpfc_version.h

@@ -20,7 +20,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "12.6.0.2"
+#define LPFC_DRIVER_VERSION "12.6.0.3"
 #define LPFC_DRIVER_NAME		"lpfc"
 
 /* Used for SLI 2/3 */

drivers/scsi/megaraid/megaraid_sas.h

@@ -21,8 +21,8 @@
 /*
  * MegaRAID SAS Driver meta data
  */
-#define MEGASAS_VERSION				"07.710.50.00-rc1"
+#define MEGASAS_VERSION				"07.713.01.00-rc1"
-#define MEGASAS_RELDATE				"June 28, 2019"
+#define MEGASAS_RELDATE				"Dec 27, 2019"
 
 #define MEGASAS_MSIX_NAME_LEN			32
 
@@ -2233,9 +2233,9 @@ enum MR_PD_TYPE {
 
 /* JBOD Queue depth definitions */
 #define MEGASAS_SATA_QD	32
-#define MEGASAS_SAS_QD	64
+#define MEGASAS_SAS_QD 256
 #define MEGASAS_DEFAULT_PD_QD	64
-#define MEGASAS_NVME_QD		32
+#define MEGASAS_NVME_QD        64
 
 #define MR_DEFAULT_NVME_PAGE_SIZE	4096
 #define MR_DEFAULT_NVME_PAGE_SHIFT	12
@@ -2640,10 +2640,11 @@ enum MEGASAS_OCR_CAUSE {
 };
 
 enum DCMD_RETURN_STATUS {
-	DCMD_SUCCESS		= 0,
+	DCMD_SUCCESS    = 0x00,
-	DCMD_TIMEOUT		= 1,
+	DCMD_TIMEOUT    = 0x01,
-	DCMD_FAILED		= 2,
+	DCMD_FAILED     = 0x02,
-	DCMD_NOT_FIRED		= 3,
+	DCMD_BUSY       = 0x03,
+	DCMD_INIT       = 0xff,
 };
 
 u8

drivers/scsi/megaraid/megaraid_sas_base.c

@@ -1099,7 +1099,7 @@ megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
 	if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
 		dev_err(&instance->pdev->dev, "Failed from %s %d\n",
 			__func__, __LINE__);
-		return DCMD_NOT_FIRED;
+		return DCMD_INIT;
 	}
 
 	instance->instancet->issue_dcmd(instance, cmd);
@@ -1123,19 +1123,19 @@ megasas_issue_blocked_cmd(struct megasas_instance *instance,
 			  struct megasas_cmd *cmd, int timeout)
 {
 	int ret = 0;
-	cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
+	cmd->cmd_status_drv = DCMD_INIT;
 
 	if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
 		dev_err(&instance->pdev->dev, "Failed from %s %d\n",
 			__func__, __LINE__);
-		return DCMD_NOT_FIRED;
+		return DCMD_INIT;
 	}
 
 	instance->instancet->issue_dcmd(instance, cmd);
 
 	if (timeout) {
 		ret = wait_event_timeout(instance->int_cmd_wait_q,
-				cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
+		cmd->cmd_status_drv != DCMD_INIT, timeout * HZ);
 		if (!ret) {
 			dev_err(&instance->pdev->dev,
 				"DCMD(opcode: 0x%x) is timed out, func:%s\n",
@@ -1144,10 +1144,9 @@ megasas_issue_blocked_cmd(struct megasas_instance *instance,
 		}
 	} else
 		wait_event(instance->int_cmd_wait_q,
-				cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
+				cmd->cmd_status_drv != DCMD_INIT);
 
-	return (cmd->cmd_status_drv == MFI_STAT_OK) ?
+	return cmd->cmd_status_drv;
-		DCMD_SUCCESS : DCMD_FAILED;
 }
 
 /**
@@ -1190,19 +1189,19 @@ megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
 		cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));
 
 	cmd->sync_cmd = 1;
-	cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
+	cmd->cmd_status_drv = DCMD_INIT;
 
 	if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
 		dev_err(&instance->pdev->dev, "Failed from %s %d\n",
 			__func__, __LINE__);
-		return DCMD_NOT_FIRED;
+		return DCMD_INIT;
 	}
 
 	instance->instancet->issue_dcmd(instance, cmd);
 
 	if (timeout) {
 		ret = wait_event_timeout(instance->abort_cmd_wait_q,
-				cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
+		cmd->cmd_status_drv != DCMD_INIT, timeout * HZ);
 		if (!ret) {
 			opcode = cmd_to_abort->frame->dcmd.opcode;
 			dev_err(&instance->pdev->dev,
@@ -1212,13 +1211,12 @@ megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
 		}
 	} else
 		wait_event(instance->abort_cmd_wait_q,
-				cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
+		cmd->cmd_status_drv != DCMD_INIT);
 
 	cmd->sync_cmd = 0;
 
 	megasas_return_cmd(instance, cmd);
-	return (cmd->cmd_status_drv == MFI_STAT_OK) ?
+	return cmd->cmd_status_drv;
-		DCMD_SUCCESS : DCMD_FAILED;
 }
 
 /**
@@ -1887,6 +1885,10 @@ void megasas_set_dynamic_target_properties(struct scsi_device *sdev,
 
 		mr_device_priv_data->is_tm_capable =
 			raid->capability.tmCapable;
+
+		if (!raid->flags.isEPD)
+			sdev->no_write_same = 1;
+
 	} else if (instance->use_seqnum_jbod_fp) {
 		pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
 			sdev->id;
@@ -2150,6 +2152,12 @@ static void megasas_complete_outstanding_ioctls(struct megasas_instance *instanc
 
 void megaraid_sas_kill_hba(struct megasas_instance *instance)
 {
+	if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
+		dev_warn(&instance->pdev->dev,
+			 "Adapter already dead, skipping kill HBA\n");
+		return;
+	}
+
 	/* Set critical error to block I/O & ioctls in case caller didn't */
 	atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
 	/* Wait 1 second to ensure IO or ioctls in build have posted */
@@ -2726,7 +2734,7 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance)
 						"reset queue\n",
 						reset_cmd);
 
-				reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
+				reset_cmd->cmd_status_drv = DCMD_INIT;
 				instance->instancet->fire_cmd(instance,
 						reset_cmd->frame_phys_addr,
 						0, instance->reg_set);
@@ -3416,7 +3424,6 @@ static struct scsi_host_template megasas_template = {
 	.bios_param = megasas_bios_param,
 	.change_queue_depth = scsi_change_queue_depth,
 	.max_segment_size = 0xffffffff,
-	.no_write_same = 1,
 };
 
 /**
@@ -3432,7 +3439,11 @@ static void
 megasas_complete_int_cmd(struct megasas_instance *instance,
 			 struct megasas_cmd *cmd)
 {
-	cmd->cmd_status_drv = cmd->frame->io.cmd_status;
+	if (cmd->cmd_status_drv == DCMD_INIT)
+		cmd->cmd_status_drv =
+		(cmd->frame->io.cmd_status == MFI_STAT_OK) ?
+		DCMD_SUCCESS : DCMD_FAILED;
+
 	wake_up(&instance->int_cmd_wait_q);
 }
 
@@ -3451,7 +3462,7 @@ megasas_complete_abort(struct megasas_instance *instance,
 {
 	if (cmd->sync_cmd) {
 		cmd->sync_cmd = 0;
-		cmd->cmd_status_drv = 0;
+		cmd->cmd_status_drv = DCMD_SUCCESS;
 		wake_up(&instance->abort_cmd_wait_q);
 	}
 }
@@ -3727,7 +3738,7 @@ megasas_issue_pending_cmds_again(struct megasas_instance *instance)
 			dev_notice(&instance->pdev->dev, "%p synchronous cmd"
 						"on the internal reset queue,"
 						"issue it again.\n", cmd);
-			cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
+			cmd->cmd_status_drv = DCMD_INIT;
 			instance->instancet->fire_cmd(instance,
 							cmd->frame_phys_addr,
 							0, instance->reg_set);
@@ -4392,7 +4403,8 @@ dcmd_timeout_ocr_possible(struct megasas_instance *instance) {
 	if (instance->adapter_type == MFI_SERIES)
 		return KILL_ADAPTER;
 	else if (instance->unload ||
-			test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags))
+			test_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE,
+				 &instance->reset_flags))
 		return IGNORE_TIMEOUT;
 	else
 		return INITIATE_OCR;
@@ -7593,6 +7605,7 @@ megasas_resume(struct pci_dev *pdev)
 	struct Scsi_Host *host;
 	struct megasas_instance *instance;
 	int irq_flags = PCI_IRQ_LEGACY;
+	u32 status_reg;
 
 	instance = pci_get_drvdata(pdev);
 
@@ -7620,9 +7633,35 @@ megasas_resume(struct pci_dev *pdev)
 	/*
 	 * We expect the FW state to be READY
 	 */
-	if (megasas_transition_to_ready(instance, 0))
-		goto fail_ready_state;
 
+	if (megasas_transition_to_ready(instance, 0)) {
+		dev_info(&instance->pdev->dev,
+			 "Failed to transition controller to ready from %s!\n",
+			 __func__);
+		if (instance->adapter_type != MFI_SERIES) {
+			status_reg =
+				instance->instancet->read_fw_status_reg(instance);
+			if (!(status_reg & MFI_RESET_ADAPTER) ||
+				((megasas_adp_reset_wait_for_ready
+				(instance, true, 0)) == FAILED))
+				goto fail_ready_state;
+		} else {
+			atomic_set(&instance->fw_reset_no_pci_access, 1);
+			instance->instancet->adp_reset
+				(instance, instance->reg_set);
+			atomic_set(&instance->fw_reset_no_pci_access, 0);
+
+			/* waiting for about 30 seconds before retry */
+			ssleep(30);
+
+			if (megasas_transition_to_ready(instance, 0))
+				goto fail_ready_state;
+		}
+
+		dev_info(&instance->pdev->dev,
+			 "FW restarted successfully from %s!\n",
+			 __func__);
+	}
 	if (megasas_set_dma_mask(instance))
 		goto fail_set_dma_mask;
 
@@ -8036,6 +8075,7 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
 	dma_addr_t sense_handle;
 	unsigned long *sense_ptr;
 	u32 opcode = 0;
+	int ret = DCMD_SUCCESS;
 
 	memset(kbuff_arr, 0, sizeof(kbuff_arr));
 
@@ -8176,13 +8216,18 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
 	 * cmd to the SCSI mid-layer
 	 */
 	cmd->sync_cmd = 1;
-	if (megasas_issue_blocked_cmd(instance, cmd, 0) == DCMD_NOT_FIRED) {
+
+	ret = megasas_issue_blocked_cmd(instance, cmd, 0);
+	switch (ret) {
+	case DCMD_INIT:
+	case DCMD_BUSY:
 		cmd->sync_cmd = 0;
 		dev_err(&instance->pdev->dev,
 			"return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n",
-			__func__, __LINE__, cmd->frame->hdr.cmd, opcode,
+			 __func__, __LINE__, cmd->frame->hdr.cmd, opcode,
-			cmd->cmd_status_drv);
+			 cmd->cmd_status_drv);
-		return -EBUSY;
+			error = -EBUSY;
+			goto out;
 	}
 
 	cmd->sync_cmd = 0;

drivers/scsi/megaraid/megaraid_sas_fusion.c

@@ -364,6 +364,35 @@ megasas_fusion_update_can_queue(struct megasas_instance *instance, int fw_boot_c
 		instance->max_fw_cmds = instance->max_fw_cmds-1;
 	}
 }
+
+static inline void
+megasas_get_msix_index(struct megasas_instance *instance,
+		       struct scsi_cmnd *scmd,
+		       struct megasas_cmd_fusion *cmd,
+		       u8 data_arms)
+{
+	int sdev_busy;
+
+	/* nr_hw_queue = 1 for MegaRAID */
+	struct blk_mq_hw_ctx *hctx =
+		scmd->device->request_queue->queue_hw_ctx[0];
+
+	sdev_busy = atomic_read(&hctx->nr_active);
+
+	if (instance->perf_mode == MR_BALANCED_PERF_MODE &&
+	    sdev_busy > (data_arms * MR_DEVICE_HIGH_IOPS_DEPTH))
+		cmd->request_desc->SCSIIO.MSIxIndex =
+			mega_mod64((atomic64_add_return(1, &instance->high_iops_outstanding) /
+					MR_HIGH_IOPS_BATCH_COUNT), instance->low_latency_index_start);
+	else if (instance->msix_load_balance)
+		cmd->request_desc->SCSIIO.MSIxIndex =
+			(mega_mod64(atomic64_add_return(1, &instance->total_io_count),
+				instance->msix_vectors));
+	else
+		cmd->request_desc->SCSIIO.MSIxIndex =
+			instance->reply_map[raw_smp_processor_id()];
+}
+
 /**
  * megasas_free_cmds_fusion -	Free all the cmds in the free cmd pool
  * @instance:		Adapter soft state
@@ -1312,7 +1341,9 @@ megasas_sync_pd_seq_num(struct megasas_instance *instance, bool pend) {
 	}
 
 	if (ret == DCMD_TIMEOUT)
-		megaraid_sas_kill_hba(instance);
+		dev_warn(&instance->pdev->dev,
+			 "%s DCMD timed out, continue without JBOD sequence map\n",
+			 __func__);
 
 	if (ret == DCMD_SUCCESS)
 		instance->pd_seq_map_id++;
@@ -1394,7 +1425,9 @@ megasas_get_ld_map_info(struct megasas_instance *instance)
 		ret = megasas_issue_polled(instance, cmd);
 
 	if (ret == DCMD_TIMEOUT)
-		megaraid_sas_kill_hba(instance);
+		dev_warn(&instance->pdev->dev,
+			 "%s DCMD timed out, RAID map is disabled\n",
+			 __func__);
 
 	megasas_return_cmd(instance, cmd);
 
@@ -2825,19 +2858,7 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
 			fp_possible = (io_info.fpOkForIo > 0) ? true : false;
 	}
 
-	if ((instance->perf_mode == MR_BALANCED_PERF_MODE) &&
+	megasas_get_msix_index(instance, scp, cmd, io_info.data_arms);
-		atomic_read(&scp->device->device_busy) >
-		(io_info.data_arms * MR_DEVICE_HIGH_IOPS_DEPTH))
-		cmd->request_desc->SCSIIO.MSIxIndex =
-			mega_mod64((atomic64_add_return(1, &instance->high_iops_outstanding) /
-				MR_HIGH_IOPS_BATCH_COUNT), instance->low_latency_index_start);
-	else if (instance->msix_load_balance)
-		cmd->request_desc->SCSIIO.MSIxIndex =
-			(mega_mod64(atomic64_add_return(1, &instance->total_io_count),
-				    instance->msix_vectors));
-	else
-		cmd->request_desc->SCSIIO.MSIxIndex =
-			instance->reply_map[raw_smp_processor_id()];
 
 	if (instance->adapter_type >= VENTURA_SERIES) {
 		/* FP for Optimal raid level 1.
@@ -3158,18 +3179,7 @@ megasas_build_syspd_fusion(struct megasas_instance *instance,
 
 	cmd->request_desc->SCSIIO.DevHandle = io_request->DevHandle;
 
-	if ((instance->perf_mode == MR_BALANCED_PERF_MODE) &&
+	megasas_get_msix_index(instance, scmd, cmd, 1);
-		atomic_read(&scmd->device->device_busy) > MR_DEVICE_HIGH_IOPS_DEPTH)
-		cmd->request_desc->SCSIIO.MSIxIndex =
-			mega_mod64((atomic64_add_return(1, &instance->high_iops_outstanding) /
-				MR_HIGH_IOPS_BATCH_COUNT), instance->low_latency_index_start);
-	else if (instance->msix_load_balance)
-		cmd->request_desc->SCSIIO.MSIxIndex =
-			(mega_mod64(atomic64_add_return(1, &instance->total_io_count),
-				    instance->msix_vectors));
-	else
-		cmd->request_desc->SCSIIO.MSIxIndex =
-			instance->reply_map[raw_smp_processor_id()];
 
 	if (!fp_possible) {
 		/* system pd firmware path */
@@ -4219,7 +4229,8 @@ void  megasas_reset_reply_desc(struct megasas_instance *instance)
  * megasas_refire_mgmt_cmd :	Re-fire management commands
  * @instance:				Controller's soft instance
 */
-static void megasas_refire_mgmt_cmd(struct megasas_instance *instance)
+void megasas_refire_mgmt_cmd(struct megasas_instance *instance,
+			     bool return_ioctl)
 {
 	int j;
 	struct megasas_cmd_fusion *cmd_fusion;
@@ -4283,6 +4294,16 @@ static void megasas_refire_mgmt_cmd(struct megasas_instance *instance)
 			break;
 		}
 
+		if (return_ioctl && cmd_mfi->sync_cmd &&
+		    cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT) {
+			dev_err(&instance->pdev->dev,
+				"return -EBUSY from %s %d cmd 0x%x opcode 0x%x\n",
+				__func__, __LINE__, cmd_mfi->frame->hdr.cmd,
+				le32_to_cpu(cmd_mfi->frame->dcmd.opcode));
+			cmd_mfi->cmd_status_drv = DCMD_BUSY;
+			result = COMPLETE_CMD;
+		}
+
 		switch (result) {
 		case REFIRE_CMD:
 			megasas_fire_cmd_fusion(instance, req_desc);
@@ -4297,6 +4318,37 @@ static void megasas_refire_mgmt_cmd(struct megasas_instance *instance)
 	}
 }
 
+/*
+ * megasas_return_polled_cmds: Return polled mode commands back to the pool
+ *			       before initiating an OCR.
+ * @instance:                  Controller's soft instance
+ */
+static void
+megasas_return_polled_cmds(struct megasas_instance *instance)
+{
+	int i;
+	struct megasas_cmd_fusion *cmd_fusion;
+	struct fusion_context *fusion;
+	struct megasas_cmd *cmd_mfi;
+
+	fusion = instance->ctrl_context;
+
+	for (i = instance->max_scsi_cmds; i < instance->max_fw_cmds; i++) {
+		cmd_fusion = fusion->cmd_list[i];
+		cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
+
+		if (cmd_mfi->flags & DRV_DCMD_POLLED_MODE) {
+			if (megasas_dbg_lvl & OCR_DEBUG)
+				dev_info(&instance->pdev->dev,
+					 "%s %d return cmd 0x%x opcode 0x%x\n",
+					 __func__, __LINE__, cmd_mfi->frame->hdr.cmd,
+					 le32_to_cpu(cmd_mfi->frame->dcmd.opcode));
+			cmd_mfi->flags &= ~DRV_DCMD_POLLED_MODE;
+			megasas_return_cmd(instance, cmd_mfi);
+		}
+	}
+}
+
 /*
  * megasas_track_scsiio : Track SCSI IOs outstanding to a SCSI device
  * @instance: per adapter struct
@@ -4847,6 +4899,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
 	if (instance->requestorId && !instance->skip_heartbeat_timer_del)
 		del_timer_sync(&instance->sriov_heartbeat_timer);
 	set_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
+	set_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE, &instance->reset_flags);
 	atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_POLLING);
 	instance->instancet->disable_intr(instance);
 	megasas_sync_irqs((unsigned long)instance);
@@ -4951,7 +5004,9 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
 				goto kill_hba;
 			}
 
-			megasas_refire_mgmt_cmd(instance);
+			megasas_refire_mgmt_cmd(instance,
+						(i == (MEGASAS_FUSION_MAX_RESET_TRIES - 1)
+							? 1 : 0));
 
 			/* Reset load balance info */
 			if (fusion->load_balance_info)
@@ -4959,8 +5014,16 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
 				       (sizeof(struct LD_LOAD_BALANCE_INFO) *
 				       MAX_LOGICAL_DRIVES_EXT));
 
-			if (!megasas_get_map_info(instance))
+			if (!megasas_get_map_info(instance)) {
 				megasas_sync_map_info(instance);
+			} else {
+				/*
+				 * Return pending polled mode cmds before
+				 * retrying OCR
+				 */
+				megasas_return_polled_cmds(instance);
+				continue;
+			}
 
 			megasas_setup_jbod_map(instance);
 
@@ -4987,6 +5050,15 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
 				megasas_set_dynamic_target_properties(sdev, is_target_prop);
 			}
 
+			status_reg = instance->instancet->read_fw_status_reg
+					(instance);
+			abs_state = status_reg & MFI_STATE_MASK;
+			if (abs_state != MFI_STATE_OPERATIONAL) {
+				dev_info(&instance->pdev->dev,
+					 "Adapter is not OPERATIONAL, state 0x%x for scsi:%d\n",
+					 abs_state, instance->host->host_no);
+				goto out;
+			}
 			atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
 
 			dev_info(&instance->pdev->dev,
@@ -5046,7 +5118,7 @@ kill_hba:
 	instance->skip_heartbeat_timer_del = 1;
 	retval = FAILED;
 out:
-	clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
+	clear_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE, &instance->reset_flags);
 	mutex_unlock(&instance->reset_mutex);
 	return retval;
 }

drivers/scsi/megaraid/megaraid_sas_fusion.h

@@ -89,6 +89,7 @@ enum MR_RAID_FLAGS_IO_SUB_TYPE {
 
 #define MEGASAS_FP_CMD_LEN	16
 #define MEGASAS_FUSION_IN_RESET 0
+#define MEGASAS_FUSION_OCR_NOT_POSSIBLE 1
 #define RAID_1_PEER_CMDS 2
 #define JBOD_MAPS_COUNT	2
 #define MEGASAS_REDUCE_QD_COUNT 64
@@ -864,9 +865,20 @@ struct MR_LD_RAID {
 	u8	regTypeReqOnRead;
 	__le16     seqNum;
 
-	struct {
+struct {
-		u32 ldSyncRequired:1;
+#ifndef MFI_BIG_ENDIAN
-		u32 reserved:31;
+	u32 ldSyncRequired:1;
+	u32 regTypeReqOnReadIsValid:1;
+	u32 isEPD:1;
+	u32 enableSLDOnAllRWIOs:1;
+	u32 reserved:28;
+#else
+	u32 reserved:28;
+	u32 enableSLDOnAllRWIOs:1;
+	u32 isEPD:1;
+	u32 regTypeReqOnReadIsValid:1;
+	u32 ldSyncRequired:1;
+#endif
 	} flags;
 
 	u8	LUN[8]; /* 0x24 8 byte LUN field used for SCSI IO's */

drivers/scsi/mpt3sas/mpi/mpi2.h

@@ -122,6 +122,9 @@
  * 08-28-18  02.00.53  Bumped MPI2_HEADER_VERSION_UNIT.
  *                     Added MPI2_IOCSTATUS_FAILURE
  * 12-17-18  02.00.54  Bumped MPI2_HEADER_VERSION_UNIT
+ * 06-24-19  02.00.55  Bumped MPI2_HEADER_VERSION_UNIT
+ * 08-01-19  02.00.56  Bumped MPI2_HEADER_VERSION_UNIT
+ * 10-02-19  02.00.57  Bumped MPI2_HEADER_VERSION_UNIT
  *  --------------------------------------------------------------------------
  */
 
@@ -162,7 +165,7 @@
 
 
 /* Unit and Dev versioning for this MPI header set */
-#define MPI2_HEADER_VERSION_UNIT            (0x36)
+#define MPI2_HEADER_VERSION_UNIT            (0x39)
 #define MPI2_HEADER_VERSION_DEV             (0x00)
 #define MPI2_HEADER_VERSION_UNIT_MASK       (0xFF00)
 #define MPI2_HEADER_VERSION_UNIT_SHIFT      (8)
@@ -181,6 +184,7 @@
 #define MPI2_IOC_STATE_READY               (0x10000000)
 #define MPI2_IOC_STATE_OPERATIONAL         (0x20000000)
 #define MPI2_IOC_STATE_FAULT               (0x40000000)
+#define MPI2_IOC_STATE_COREDUMP            (0x50000000)
 
 #define MPI2_IOC_STATE_MASK                (0xF0000000)
 #define MPI2_IOC_STATE_SHIFT               (28)

drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h

@@ -249,6 +249,8 @@
  * 08-28-18  02.00.46  Added NVMs Write Cache flag to IOUnitPage1
  *                     Added DMDReport Delay Time defines to PCIeIOUnitPage1
  * 12-17-18  02.00.47  Swap locations of Slotx2 and Slotx4 in ManPage 7.
+ * 08-01-19  02.00.49  Add MPI26_MANPAGE7_FLAG_X2_X4_SLOT_INFO_VALID
+ *                     Add MPI26_IOUNITPAGE1_NVME_WRCACHE_SHIFT
  */
 
 #ifndef MPI2_CNFG_H
@@ -891,6 +893,8 @@ typedef struct _MPI2_CONFIG_PAGE_MAN_7 {
 #define MPI2_MANPAGE7_FLAG_EVENTREPLAY_SLOT_ORDER       (0x00000002)
 #define MPI2_MANPAGE7_FLAG_USE_SLOT_INFO                (0x00000001)
 
+#define MPI26_MANPAGE7_FLAG_CONN_LANE_USE_PINOUT        (0x00000020)
+#define MPI26_MANPAGE7_FLAG_X2_X4_SLOT_INFO_VALID       (0x00000010)
 
 /*
  *Generic structure to use for product-specific manufacturing pages
@@ -962,9 +966,10 @@ typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_1 {
 
 /* IO Unit Page 1 Flags defines */
 #define MPI26_IOUNITPAGE1_NVME_WRCACHE_MASK             (0x00030000)
-#define MPI26_IOUNITPAGE1_NVME_WRCACHE_ENABLE           (0x00000000)
+#define MPI26_IOUNITPAGE1_NVME_WRCACHE_SHIFT            (16)
-#define MPI26_IOUNITPAGE1_NVME_WRCACHE_DISABLE          (0x00010000)
+#define MPI26_IOUNITPAGE1_NVME_WRCACHE_NO_CHANGE        (0x00000000)
-#define MPI26_IOUNITPAGE1_NVME_WRCACHE_NO_CHANGE        (0x00020000)
+#define MPI26_IOUNITPAGE1_NVME_WRCACHE_ENABLE           (0x00010000)
+#define MPI26_IOUNITPAGE1_NVME_WRCACHE_DISABLE          (0x00020000)
 #define MPI2_IOUNITPAGE1_ATA_SECURITY_FREEZE_LOCK       (0x00004000)
 #define MPI25_IOUNITPAGE1_NEW_DEVICE_FAST_PATH_DISABLE  (0x00002000)
 #define MPI25_IOUNITPAGE1_DISABLE_FAST_PATH             (0x00001000)
@@ -3931,7 +3936,13 @@ typedef struct _MPI26_CONFIG_PAGE_PCIEDEV_2 {
 	U32	MaximumDataTransferSize;	/*0x0C */
 	U32	Capabilities;		/*0x10 */
 	U16	NOIOB;		/* 0x14 */
-	U16	Reserved2;		/* 0x16 */
+	U16     ShutdownLatency;        /* 0x16 */
+	U16     VendorID;               /* 0x18 */
+	U16     DeviceID;               /* 0x1A */
+	U16     SubsystemVendorID;      /* 0x1C */
+	U16     SubsystemID;            /* 0x1E */
+	U8      RevisionID;             /* 0x20 */
+	U8      Reserved21[3];          /* 0x21 */
 } MPI26_CONFIG_PAGE_PCIEDEV_2, *PTR_MPI26_CONFIG_PAGE_PCIEDEV_2,
 	Mpi26PCIeDevicePage2_t, *pMpi26PCIeDevicePage2_t;
 

drivers/scsi/mpt3sas/mpi/mpi2_image.h

@@ -19,6 +19,10 @@
  * 09-07-18  02.06.03  Added MPI26_EVENT_PCIE_TOPO_PI_16_LANES
  * 12-17-18  02.06.04  Addd MPI2_EXT_IMAGE_TYPE_PBLP
  *			Shorten some defines to be compatible with DOS
+ * 06-24-19  02.06.05  Whitespace adjustments to help with identifier
+ *			checking tool.
+ * 10-02-19  02.06.06  Added MPI26_IMAGE_HEADER_SIG1_COREDUMP
+ *                     Added MPI2_FLASH_REGION_COREDUMP
  */
 #ifndef MPI2_IMAGE_H
 #define MPI2_IMAGE_H
@@ -213,6 +217,8 @@ typedef struct _MPI26_COMPONENT_IMAGE_HEADER {
 #define MPI26_IMAGE_HEADER_SIG1_NVDATA                   (0x5444564E)
 #define MPI26_IMAGE_HEADER_SIG1_GAS_GAUGE                (0x20534147)
 #define MPI26_IMAGE_HEADER_SIG1_PBLP                     (0x504C4250)
+/* little-endian "DUMP" */
+#define MPI26_IMAGE_HEADER_SIG1_COREDUMP                 (0x504D5544)
 
 /**** Definitions for Signature2 field ****/
 #define MPI26_IMAGE_HEADER_SIGNATURE2_VALUE                    (0x50584546)
@@ -359,6 +365,7 @@ typedef struct _MPI2_FLASH_LAYOUT_DATA {
 #define MPI2_FLASH_REGION_MR_NVDATA             (0x14)
 #define MPI2_FLASH_REGION_CPLD                  (0x15)
 #define MPI2_FLASH_REGION_PSOC                  (0x16)
+#define MPI2_FLASH_REGION_COREDUMP              (0x17)
 
 /*ImageRevision */
 #define MPI2_FLASH_LAYOUT_IMAGE_REVISION        (0x00)

drivers/scsi/mpt3sas/mpi/mpi2_ioc.h

@@ -175,6 +175,10 @@
  *                     Moved FW image definitions ionto new mpi2_image,h
  * 08-14-18   02.00.36 Fixed definition of MPI2_FW_DOWNLOAD_ITYPE_PSOC (0x16)
  * 09-07-18   02.00.37 Added MPI26_EVENT_PCIE_TOPO_PI_16_LANES
+ * 10-02-19   02.00.38 Added MPI26_IOCINIT_CFGFLAGS_COREDUMP_ENABLE
+ *                     Added MPI26_IOCFACTS_CAPABILITY_COREDUMP_ENABLED
+ *                     Added MPI2_FW_DOWNLOAD_ITYPE_COREDUMP
+ *                     Added MPI2_FW_UPLOAD_ITYPE_COREDUMP
  * --------------------------------------------------------------------------
  */
 
@@ -248,6 +252,7 @@ typedef struct _MPI2_IOC_INIT_REQUEST {
 
 /*ConfigurationFlags */
 #define MPI26_IOCINIT_CFGFLAGS_NVME_SGL_FORMAT  (0x0001)
+#define MPI26_IOCINIT_CFGFLAGS_COREDUMP_ENABLE  (0x0002)
 
 /*minimum depth for a Reply Descriptor Post Queue */
 #define MPI2_RDPQ_DEPTH_MIN                     (16)
@@ -377,6 +382,7 @@ typedef struct _MPI2_IOC_FACTS_REPLY {
 /*ProductID field uses MPI2_FW_HEADER_PID_ */
 
 /*IOCCapabilities */
+#define MPI26_IOCFACTS_CAPABILITY_COREDUMP_ENABLED      (0x00200000)
 #define MPI26_IOCFACTS_CAPABILITY_PCIE_SRIOV            (0x00100000)
 #define MPI26_IOCFACTS_CAPABILITY_ATOMIC_REQ            (0x00080000)
 #define MPI2_IOCFACTS_CAPABILITY_RDPQ_ARRAY_CAPABLE     (0x00040000)
@@ -1458,8 +1464,8 @@ typedef struct _MPI2_FW_DOWNLOAD_REQUEST {
 /*MPI v2.6 and newer */
 #define MPI2_FW_DOWNLOAD_ITYPE_CPLD                 (0x15)
 #define MPI2_FW_DOWNLOAD_ITYPE_PSOC                 (0x16)
+#define MPI2_FW_DOWNLOAD_ITYPE_COREDUMP             (0x17)
 #define MPI2_FW_DOWNLOAD_ITYPE_MIN_PRODUCT_SPECIFIC (0xF0)
-#define MPI2_FW_DOWNLOAD_ITYPE_TERMINATE            (0xFF)
 
 /*MPI v2.0 FWDownload TransactionContext Element */
 typedef struct _MPI2_FW_DOWNLOAD_TCSGE {

drivers/scsi/mpt3sas/mpt3sas_base.c

@@ -123,8 +123,15 @@ enum mpt3sas_perf_mode {
 	MPT_PERF_MODE_LATENCY	= 2,
 };
 
+static int
+_base_wait_on_iocstate(struct MPT3SAS_ADAPTER *ioc,
+		u32 ioc_state, int timeout);
 static int
 _base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc);
+static void
+_base_mask_interrupts(struct MPT3SAS_ADAPTER *ioc);
+static void
+_base_clear_outstanding_commands(struct MPT3SAS_ADAPTER *ioc);
 
 /**
  * mpt3sas_base_check_cmd_timeout - Function
@@ -609,7 +616,8 @@ _base_fault_reset_work(struct work_struct *work)
 
 
 	spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
-	if (ioc->shost_recovery || ioc->pci_error_recovery)
+	if ((ioc->shost_recovery && (ioc->ioc_coredump_loop == 0)) ||
+			ioc->pci_error_recovery)
 		goto rearm_timer;
 	spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
 
@@ -656,20 +664,64 @@ _base_fault_reset_work(struct work_struct *work)
 		return; /* don't rearm timer */
 	}
 
-	ioc->non_operational_loop = 0;
+	if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_COREDUMP) {
+		u8 timeout = (ioc->manu_pg11.CoreDumpTOSec) ?
+		    ioc->manu_pg11.CoreDumpTOSec :
+		    MPT3SAS_DEFAULT_COREDUMP_TIMEOUT_SECONDS;
 
+		timeout /= (FAULT_POLLING_INTERVAL/1000);
+
+		if (ioc->ioc_coredump_loop == 0) {
+			mpt3sas_print_coredump_info(ioc,
+			    doorbell & MPI2_DOORBELL_DATA_MASK);
+			/* do not accept any IOs and disable the interrupts */
+			spin_lock_irqsave(
+			    &ioc->ioc_reset_in_progress_lock, flags);
+			ioc->shost_recovery = 1;
+			spin_unlock_irqrestore(
+			    &ioc->ioc_reset_in_progress_lock, flags);
+			_base_mask_interrupts(ioc);
+			_base_clear_outstanding_commands(ioc);
+		}
+
+		ioc_info(ioc, "%s: CoreDump loop %d.",
+		    __func__, ioc->ioc_coredump_loop);
+
+		/* Wait until CoreDump completes or times out */
+		if (ioc->ioc_coredump_loop++ < timeout) {
+			spin_lock_irqsave(
+			    &ioc->ioc_reset_in_progress_lock, flags);
+			goto rearm_timer;
+		}
+	}
+
+	if (ioc->ioc_coredump_loop) {
+		if ((doorbell & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_COREDUMP)
+			ioc_err(ioc, "%s: CoreDump completed. LoopCount: %d",
+			    __func__, ioc->ioc_coredump_loop);
+		else
+			ioc_err(ioc, "%s: CoreDump Timed out. LoopCount: %d",
+			    __func__, ioc->ioc_coredump_loop);
+		ioc->ioc_coredump_loop = MPT3SAS_COREDUMP_LOOP_DONE;
+	}
+	ioc->non_operational_loop = 0;
 	if ((doorbell & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL) {
 		rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
 		ioc_warn(ioc, "%s: hard reset: %s\n",
 			 __func__, rc == 0 ? "success" : "failed");
 		doorbell = mpt3sas_base_get_iocstate(ioc, 0);
-		if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
+		if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
-			mpt3sas_base_fault_info(ioc, doorbell &
+			mpt3sas_print_fault_code(ioc, doorbell &
+			    MPI2_DOORBELL_DATA_MASK);
+		} else if ((doorbell & MPI2_IOC_STATE_MASK) ==
+		    MPI2_IOC_STATE_COREDUMP)
+			mpt3sas_print_coredump_info(ioc, doorbell &
 			    MPI2_DOORBELL_DATA_MASK);
 		if (rc && (doorbell & MPI2_IOC_STATE_MASK) !=
 		    MPI2_IOC_STATE_OPERATIONAL)
 			return; /* don't rearm timer */
 	}
+	ioc->ioc_coredump_loop = 0;
 
 	spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
  rearm_timer:
@@ -748,6 +800,49 @@ mpt3sas_base_fault_info(struct MPT3SAS_ADAPTER *ioc , u16 fault_code)
 	ioc_err(ioc, "fault_state(0x%04x)!\n", fault_code);
 }
 
+/**
+ * mpt3sas_base_coredump_info - verbose translation of firmware CoreDump state
+ * @ioc: per adapter object
+ * @fault_code: fault code
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_coredump_info(struct MPT3SAS_ADAPTER *ioc, u16 fault_code)
+{
+	ioc_err(ioc, "coredump_state(0x%04x)!\n", fault_code);
+}
+
+/**
+ * mpt3sas_base_wait_for_coredump_completion - Wait until coredump
+ * completes or times out
+ * @ioc: per adapter object
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_base_wait_for_coredump_completion(struct MPT3SAS_ADAPTER *ioc,
+		const char *caller)
+{
+	u8 timeout = (ioc->manu_pg11.CoreDumpTOSec) ?
+			ioc->manu_pg11.CoreDumpTOSec :
+			MPT3SAS_DEFAULT_COREDUMP_TIMEOUT_SECONDS;
+
+	int ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_FAULT,
+					timeout);
+
+	if (ioc_state)
+		ioc_err(ioc,
+		    "%s: CoreDump timed out. (ioc_state=0x%x)\n",
+		    caller, ioc_state);
+	else
+		ioc_info(ioc,
+		    "%s: CoreDump completed. (ioc_state=0x%x)\n",
+		    caller, ioc_state);
+
+	return ioc_state;
+}
+
 /**
  * mpt3sas_halt_firmware - halt's mpt controller firmware
  * @ioc: per adapter object
@@ -768,9 +863,14 @@ mpt3sas_halt_firmware(struct MPT3SAS_ADAPTER *ioc)
 	dump_stack();
 
 	doorbell = ioc->base_readl(&ioc->chip->Doorbell);
-	if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
+	if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
-		mpt3sas_base_fault_info(ioc , doorbell);
+		mpt3sas_print_fault_code(ioc, doorbell &
-	else {
+		    MPI2_DOORBELL_DATA_MASK);
+	} else if ((doorbell & MPI2_IOC_STATE_MASK) ==
+	    MPI2_IOC_STATE_COREDUMP) {
+		mpt3sas_print_coredump_info(ioc, doorbell &
+		    MPI2_DOORBELL_DATA_MASK);
+	} else {
 		writel(0xC0FFEE00, &ioc->chip->Doorbell);
 		ioc_err(ioc, "Firmware is halted due to command timeout\n");
 	}
@@ -3103,6 +3203,8 @@ _base_enable_msix(struct MPT3SAS_ADAPTER *ioc)
 	 */
 	if (!ioc->combined_reply_queue &&
 	    ioc->hba_mpi_version_belonged != MPI2_VERSION) {
+		ioc_info(ioc,
+		    "combined ReplyQueue is off, Enabling msix load balance\n");
 		ioc->msix_load_balance = true;
 	}
 
@@ -3115,9 +3217,7 @@ _base_enable_msix(struct MPT3SAS_ADAPTER *ioc)
 
 	r = _base_alloc_irq_vectors(ioc);
 	if (r < 0) {
-		dfailprintk(ioc,
+		ioc_info(ioc, "pci_alloc_irq_vectors failed (r=%d) !!!\n", r);
-			    ioc_info(ioc, "pci_alloc_irq_vectors failed (r=%d) !!!\n",
-				     r));
 		goto try_ioapic;
 	}
 
@@ -3206,9 +3306,15 @@ _base_check_for_fault_and_issue_reset(struct MPT3SAS_ADAPTER *ioc)
 	dhsprintk(ioc, pr_info("%s: ioc_state(0x%08x)\n", __func__, ioc_state));
 
 	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
-		mpt3sas_base_fault_info(ioc, ioc_state &
+		mpt3sas_print_fault_code(ioc, ioc_state &
 		    MPI2_DOORBELL_DATA_MASK);
 		rc = _base_diag_reset(ioc);
+	} else if ((ioc_state & MPI2_IOC_STATE_MASK) ==
+	    MPI2_IOC_STATE_COREDUMP) {
+		mpt3sas_print_coredump_info(ioc, ioc_state &
+		     MPI2_DOORBELL_DATA_MASK);
+		mpt3sas_base_wait_for_coredump_completion(ioc, __func__);
+		rc = _base_diag_reset(ioc);
 	}
 
 	return rc;
@@ -3279,7 +3385,8 @@ mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc)
 	}
 
 	if (ioc->chip == NULL) {
-		ioc_err(ioc, "unable to map adapter memory! or resource not found\n");
+		ioc_err(ioc,
+		    "unable to map adapter memory! or resource not found\n");
 		r = -EINVAL;
 		goto out_fail;
 	}
@@ -3318,8 +3425,8 @@ mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc)
 		     ioc->combined_reply_index_count,
 		     sizeof(resource_size_t *), GFP_KERNEL);
 		if (!ioc->replyPostRegisterIndex) {
-			dfailprintk(ioc,
+			ioc_err(ioc,
-				    ioc_warn(ioc, "allocation for reply Post Register Index failed!!!\n"));
+			    "allocation for replyPostRegisterIndex failed!\n");
 			r = -ENOMEM;
 			goto out_fail;
 		}
@@ -3466,6 +3573,22 @@ _base_get_msix_index(struct MPT3SAS_ADAPTER *ioc,
 	return ioc->cpu_msix_table[raw_smp_processor_id()];
 }
 
+/**
+ * _base_sdev_nr_inflight_request -get number of inflight requests
+ *				   of a request queue.
+ * @q: request_queue object
+ *
+ * returns number of inflight request of a request queue.
+ */
+inline unsigned long
+_base_sdev_nr_inflight_request(struct request_queue *q)
+{
+	struct blk_mq_hw_ctx *hctx = q->queue_hw_ctx[0];
+
+	return atomic_read(&hctx->nr_active);
+}
+
+
 /**
  * _base_get_high_iops_msix_index - get the msix index of
  *				high iops queues
@@ -3485,7 +3608,7 @@ _base_get_high_iops_msix_index(struct MPT3SAS_ADAPTER *ioc,
 	 * reply queues in terms of batch count 16 when outstanding
 	 * IOs on the target device is >=8.
 	 */
-	if (atomic_read(&scmd->device->device_busy) >
+	if (_base_sdev_nr_inflight_request(scmd->device->request_queue) >
 	    MPT3SAS_DEVICE_HIGH_IOPS_DEPTH)
 		return base_mod64((
 		    atomic64_add_return(1, &ioc->high_iops_outstanding) /
@@ -4264,7 +4387,8 @@ _base_display_fwpkg_version(struct MPT3SAS_ADAPTER *ioc)
 	fwpkg_data = dma_alloc_coherent(&ioc->pdev->dev, data_length,
 			&fwpkg_data_dma, GFP_KERNEL);
 	if (!fwpkg_data) {
-		ioc_err(ioc, "failure at %s:%d/%s()!\n",
+		ioc_err(ioc,
+		    "Memory allocation for fwpkg data failed at %s:%d/%s()!\n",
 			__FILE__, __LINE__, __func__);
 		return -ENOMEM;
 	}
@@ -4994,12 +5118,13 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc)
 		ioc->reply_free_queue_depth = ioc->hba_queue_depth + 64;
 	}
 
-	dinitprintk(ioc,
+	ioc_info(ioc,
-		    ioc_info(ioc, "scatter gather: sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), chains_per_io(%d)\n",
+	    "scatter gather: sge_in_main_msg(%d), sge_per_chain(%d), "
-			     ioc->max_sges_in_main_message,
+	    "sge_per_io(%d), chains_per_io(%d)\n",
-			     ioc->max_sges_in_chain_message,
+	    ioc->max_sges_in_main_message,
-			     ioc->shost->sg_tablesize,
+	    ioc->max_sges_in_chain_message,
-			     ioc->chains_needed_per_io));
+	    ioc->shost->sg_tablesize,
+	    ioc->chains_needed_per_io);
 
 	/* reply post queue, 16 byte align */
 	reply_post_free_sz = ioc->reply_post_queue_depth *
@@ -5109,15 +5234,13 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc)
 	ioc->internal_dma = ioc->hi_priority_dma + (ioc->hi_priority_depth *
 	    ioc->request_sz);
 
-	dinitprintk(ioc,
+	ioc_info(ioc,
-		    ioc_info(ioc, "request pool(0x%p): depth(%d), frame_size(%d), pool_size(%d kB)\n",
+	    "request pool(0x%p) - dma(0x%llx): "
-			     ioc->request, ioc->hba_queue_depth,
+	    "depth(%d), frame_size(%d), pool_size(%d kB)\n",
-			     ioc->request_sz,
+	    ioc->request, (unsigned long long) ioc->request_dma,
-			     (ioc->hba_queue_depth * ioc->request_sz) / 1024));
+	    ioc->hba_queue_depth, ioc->request_sz,
+	    (ioc->hba_queue_depth * ioc->request_sz) / 1024);
 
-	dinitprintk(ioc,
-		    ioc_info(ioc, "request pool: dma(0x%llx)\n",
-			     (unsigned long long)ioc->request_dma));
 	total_sz += sz;
 
 	dinitprintk(ioc,
@@ -5302,13 +5425,12 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc)
 			goto out;
 		}
 	}
-	dinitprintk(ioc,
+	ioc_info(ioc,
-		    ioc_info(ioc, "sense pool(0x%p): depth(%d), element_size(%d), pool_size(%d kB)\n",
+	    "sense pool(0x%p)- dma(0x%llx): depth(%d),"
-			     ioc->sense, ioc->scsiio_depth,
+	    "element_size(%d), pool_size(%d kB)\n",
-			     SCSI_SENSE_BUFFERSIZE, sz / 1024));
+	    ioc->sense, (unsigned long long)ioc->sense_dma, ioc->scsiio_depth,
-	dinitprintk(ioc,
+	    SCSI_SENSE_BUFFERSIZE, sz / 1024);
-		    ioc_info(ioc, "sense_dma(0x%llx)\n",
+
-			     (unsigned long long)ioc->sense_dma));
 	total_sz += sz;
 
 	/* reply pool, 4 byte align */
@@ -5386,12 +5508,10 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc)
 		ioc_err(ioc, "config page: dma_pool_alloc failed\n");
 		goto out;
 	}
-	dinitprintk(ioc,
+
-		    ioc_info(ioc, "config page(0x%p): size(%d)\n",
+	ioc_info(ioc, "config page(0x%p) - dma(0x%llx): size(%d)\n",
-			     ioc->config_page, ioc->config_page_sz));
+	    ioc->config_page, (unsigned long long)ioc->config_page_dma,
-	dinitprintk(ioc,
+	    ioc->config_page_sz);
-		    ioc_info(ioc, "config_page_dma(0x%llx)\n",
-			     (unsigned long long)ioc->config_page_dma));
 	total_sz += ioc->config_page_sz;
 
 	ioc_info(ioc, "Allocated physical memory: size(%d kB)\n",
@@ -5446,6 +5566,8 @@ _base_wait_on_iocstate(struct MPT3SAS_ADAPTER *ioc, u32 ioc_state, int timeout)
 			return 0;
 		if (count && current_state == MPI2_IOC_STATE_FAULT)
 			break;
+		if (count && current_state == MPI2_IOC_STATE_COREDUMP)
+			break;
 
 		usleep_range(1000, 1500);
 		count++;
@@ -5547,7 +5669,12 @@ _base_wait_for_doorbell_ack(struct MPT3SAS_ADAPTER *ioc, int timeout)
 			doorbell = ioc->base_readl(&ioc->chip->Doorbell);
 			if ((doorbell & MPI2_IOC_STATE_MASK) ==
 			    MPI2_IOC_STATE_FAULT) {
-				mpt3sas_base_fault_info(ioc , doorbell);
+				mpt3sas_print_fault_code(ioc, doorbell);
+				return -EFAULT;
+			}
+			if ((doorbell & MPI2_IOC_STATE_MASK) ==
+			    MPI2_IOC_STATE_COREDUMP) {
+				mpt3sas_print_coredump_info(ioc, doorbell);
 				return -EFAULT;
 			}
 		} else if (int_status == 0xFFFFFFFF)
@@ -5609,6 +5736,7 @@ _base_send_ioc_reset(struct MPT3SAS_ADAPTER *ioc, u8 reset_type, int timeout)
 {
 	u32 ioc_state;
 	int r = 0;
+	unsigned long flags;
 
 	if (reset_type != MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET) {
 		ioc_err(ioc, "%s: unknown reset_type\n", __func__);
@@ -5627,6 +5755,7 @@ _base_send_ioc_reset(struct MPT3SAS_ADAPTER *ioc, u8 reset_type, int timeout)
 		r = -EFAULT;
 		goto out;
 	}
+
 	ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, timeout);
 	if (ioc_state) {
 		ioc_err(ioc, "%s: failed going to ready state (ioc_state=0x%x)\n",
@@ -5635,6 +5764,26 @@ _base_send_ioc_reset(struct MPT3SAS_ADAPTER *ioc, u8 reset_type, int timeout)
 		goto out;
 	}
  out:
+	if (r != 0) {
+		ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
+		spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
+		/*
+		 * Wait for IOC state CoreDump to clear only during
+		 * HBA initialization & release time.
+		 */
+		if ((ioc_state & MPI2_IOC_STATE_MASK) ==
+		    MPI2_IOC_STATE_COREDUMP && (ioc->is_driver_loading == 1 ||
+		    ioc->fault_reset_work_q == NULL)) {
+			spin_unlock_irqrestore(
+			    &ioc->ioc_reset_in_progress_lock, flags);
+			mpt3sas_print_coredump_info(ioc, ioc_state);
+			mpt3sas_base_wait_for_coredump_completion(ioc,
+			    __func__);
+			spin_lock_irqsave(
+			    &ioc->ioc_reset_in_progress_lock, flags);
+		}
+		spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+	}
 	ioc_info(ioc, "message unit reset: %s\n",
 		 r == 0 ? "SUCCESS" : "FAILED");
 	return r;
@@ -5782,7 +5931,7 @@ _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
 		mfp = (__le32 *)reply;
 		pr_info("\toffset:data\n");
 		for (i = 0; i < reply_bytes/4; i++)
-			pr_info("\t[0x%02x]:%08x\n", i*4,
+			ioc_info(ioc, "\t[0x%02x]:%08x\n", i*4,
 			    le32_to_cpu(mfp[i]));
 	}
 	return 0;
@@ -5850,10 +5999,9 @@ mpt3sas_base_sas_iounit_control(struct MPT3SAS_ADAPTER *ioc,
 	    ioc->ioc_link_reset_in_progress)
 		ioc->ioc_link_reset_in_progress = 0;
 	if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
-		issue_reset =
+		mpt3sas_check_cmd_timeout(ioc, ioc->base_cmds.status,
-			mpt3sas_base_check_cmd_timeout(ioc,
+		    mpi_request, sizeof(Mpi2SasIoUnitControlRequest_t)/4,
-				ioc->base_cmds.status, mpi_request,
+		    issue_reset);
-				sizeof(Mpi2SasIoUnitControlRequest_t)/4);
 		goto issue_host_reset;
 	}
 	if (ioc->base_cmds.status & MPT3_CMD_REPLY_VALID)
@@ -5926,10 +6074,9 @@ mpt3sas_base_scsi_enclosure_processor(struct MPT3SAS_ADAPTER *ioc,
 	wait_for_completion_timeout(&ioc->base_cmds.done,
 	    msecs_to_jiffies(10000));
 	if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
-		issue_reset =
+		mpt3sas_check_cmd_timeout(ioc,
-			mpt3sas_base_check_cmd_timeout(ioc,
+		    ioc->base_cmds.status, mpi_request,
-				ioc->base_cmds.status, mpi_request,
+		    sizeof(Mpi2SepRequest_t)/4, issue_reset);
-				sizeof(Mpi2SepRequest_t)/4);
 		goto issue_host_reset;
 	}
 	if (ioc->base_cmds.status & MPT3_CMD_REPLY_VALID)
@@ -6028,9 +6175,15 @@ _base_wait_for_iocstate(struct MPT3SAS_ADAPTER *ioc, int timeout)
 	}
 
 	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
-		mpt3sas_base_fault_info(ioc, ioc_state &
+		mpt3sas_print_fault_code(ioc, ioc_state &
 		    MPI2_DOORBELL_DATA_MASK);
 		goto issue_diag_reset;
+	} else if ((ioc_state & MPI2_IOC_STATE_MASK) ==
+	    MPI2_IOC_STATE_COREDUMP) {
+		ioc_info(ioc,
+		    "%s: Skipping the diag reset here. (ioc_state=0x%x)\n",
+		    __func__, ioc_state);
+		return -EFAULT;
 	}
 
 	ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, timeout);
@@ -6209,6 +6362,12 @@ _base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc)
 		    cpu_to_le64((u64)ioc->reply_post[0].reply_post_free_dma);
 	}
 
+	/*
+	 * Set the flag to enable CoreDump state feature in IOC firmware.
+	 */
+	mpi_request.ConfigurationFlags |=
+	    cpu_to_le16(MPI26_IOCINIT_CFGFLAGS_COREDUMP_ENABLE);
+
 	/* This time stamp specifies number of milliseconds
 	 * since epoch ~ midnight January 1, 1970.
 	 */
@@ -6220,9 +6379,9 @@ _base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc)
 		int i;
 
 		mfp = (__le32 *)&mpi_request;
-		pr_info("\toffset:data\n");
+		ioc_info(ioc, "\toffset:data\n");
 		for (i = 0; i < sizeof(Mpi2IOCInitRequest_t)/4; i++)
-			pr_info("\t[0x%02x]:%08x\n", i*4,
+			ioc_info(ioc, "\t[0x%02x]:%08x\n", i*4,
 			    le32_to_cpu(mfp[i]));
 	}
 
@@ -6592,8 +6751,11 @@ _base_diag_reset(struct MPT3SAS_ADAPTER *ioc)
 		/* wait 100 msec */
 		msleep(100);
 
-		if (count++ > 20)
+		if (count++ > 20) {
+			ioc_info(ioc,
+			    "Stop writing magic sequence after 20 retries\n");
 			goto out;
+		}
 
 		host_diagnostic = ioc->base_readl(&ioc->chip->HostDiagnostic);
 		drsprintk(ioc,
@@ -6617,8 +6779,11 @@ _base_diag_reset(struct MPT3SAS_ADAPTER *ioc)
 
 		host_diagnostic = ioc->base_readl(&ioc->chip->HostDiagnostic);
 
-		if (host_diagnostic == 0xFFFFFFFF)
+		if (host_diagnostic == 0xFFFFFFFF) {
+			ioc_info(ioc,
+			    "Invalid host diagnostic register value\n");
 			goto out;
+		}
 		if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER))
 			break;
 
@@ -6705,16 +6870,33 @@ _base_make_ioc_ready(struct MPT3SAS_ADAPTER *ioc, enum reset_type type)
 		return 0;
 
 	if (ioc_state & MPI2_DOORBELL_USED) {
-		dhsprintk(ioc, ioc_info(ioc, "unexpected doorbell active!\n"));
+		ioc_info(ioc, "unexpected doorbell active!\n");
 		goto issue_diag_reset;
 	}
 
 	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
-		mpt3sas_base_fault_info(ioc, ioc_state &
+		mpt3sas_print_fault_code(ioc, ioc_state &
 		    MPI2_DOORBELL_DATA_MASK);
 		goto issue_diag_reset;
 	}
 
+	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_COREDUMP) {
+		/*
+		 * if host reset is invoked while watch dog thread is waiting
+		 * for IOC state to be changed to Fault state then driver has
+		 * to wait here for CoreDump state to clear otherwise reset
+		 * will be issued to the FW and FW move the IOC state to
+		 * reset state without copying the FW logs to coredump region.
+		 */
+		if (ioc->ioc_coredump_loop != MPT3SAS_COREDUMP_LOOP_DONE) {
+			mpt3sas_print_coredump_info(ioc, ioc_state &
+			    MPI2_DOORBELL_DATA_MASK);
+			mpt3sas_base_wait_for_coredump_completion(ioc,
+			    __func__);
+		}
+		goto issue_diag_reset;
+	}
+
 	if (type == FORCE_BIG_HAMMER)
 		goto issue_diag_reset;
 
@@ -6958,8 +7140,7 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc)
 	ioc->cpu_msix_table = kzalloc(ioc->cpu_msix_table_sz, GFP_KERNEL);
 	ioc->reply_queue_count = 1;
 	if (!ioc->cpu_msix_table) {
-		dfailprintk(ioc,
+		ioc_info(ioc, "Allocation for cpu_msix_table failed!!!\n");
-			    ioc_info(ioc, "allocation for cpu_msix_table failed!!!\n"));
 		r = -ENOMEM;
 		goto out_free_resources;
 	}
@@ -6968,8 +7149,7 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc)
 		ioc->reply_post_host_index = kcalloc(ioc->cpu_msix_table_sz,
 		    sizeof(resource_size_t *), GFP_KERNEL);
 		if (!ioc->reply_post_host_index) {
-			dfailprintk(ioc,
+			ioc_info(ioc, "Allocation for reply_post_host_index failed!!!\n");
-				    ioc_info(ioc, "allocation for reply_post_host_index failed!!!\n"));
 			r = -ENOMEM;
 			goto out_free_resources;
 		}
@@ -7195,6 +7375,7 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc)
 	    sizeof(struct mpt3sas_facts));
 
 	ioc->non_operational_loop = 0;
+	ioc->ioc_coredump_loop = 0;
 	ioc->got_task_abort_from_ioctl = 0;
 	return 0;
 
@@ -7276,14 +7457,14 @@ static void _base_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc)
 }
 
 /**
- * _base_after_reset_handler - after reset handler
+ * _base_clear_outstanding_mpt_commands - clears outstanding mpt commands
  * @ioc: per adapter object
  */
-static void _base_after_reset_handler(struct MPT3SAS_ADAPTER *ioc)
+static void
+_base_clear_outstanding_mpt_commands(struct MPT3SAS_ADAPTER *ioc)
 {
-	mpt3sas_scsih_after_reset_handler(ioc);
+	dtmprintk(ioc,
-	mpt3sas_ctl_after_reset_handler(ioc);
+	    ioc_info(ioc, "%s: clear outstanding mpt cmds\n", __func__));
-	dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_AFTER_RESET\n", __func__));
 	if (ioc->transport_cmds.status & MPT3_CMD_PENDING) {
 		ioc->transport_cmds.status |= MPT3_CMD_RESET;
 		mpt3sas_base_free_smid(ioc, ioc->transport_cmds.smid);
@@ -7316,6 +7497,17 @@ static void _base_after_reset_handler(struct MPT3SAS_ADAPTER *ioc)
 	}
 }
 
+/**
+ * _base_clear_outstanding_commands - clear all outstanding commands
+ * @ioc: per adapter object
+ */
+static void _base_clear_outstanding_commands(struct MPT3SAS_ADAPTER *ioc)
+{
+	mpt3sas_scsih_clear_outstanding_scsi_tm_commands(ioc);
+	mpt3sas_ctl_clear_outstanding_ioctls(ioc);
+	_base_clear_outstanding_mpt_commands(ioc);
+}
+
 /**
  * _base_reset_done_handler - reset done handler
  * @ioc: per adapter object
@@ -7474,7 +7666,9 @@ mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc,
 	    MPT3_DIAG_BUFFER_IS_RELEASED))) {
 		is_trigger = 1;
 		ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
-		if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
+		if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT ||
+		    (ioc_state & MPI2_IOC_STATE_MASK) ==
+		    MPI2_IOC_STATE_COREDUMP)
 			is_fault = 1;
 	}
 	_base_pre_reset_handler(ioc);
@@ -7483,7 +7677,7 @@ mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc,
 	r = _base_make_ioc_ready(ioc, type);
 	if (r)
 		goto out;
-	_base_after_reset_handler(ioc);
+	_base_clear_outstanding_commands(ioc);
 
 	/* If this hard reset is called while port enable is active, then
 	 * there is no reason to call make_ioc_operational
@@ -7514,9 +7708,7 @@ mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc,
 		_base_reset_done_handler(ioc);
 
  out:
-	dtmprintk(ioc,
+	ioc_info(ioc, "%s: %s\n", __func__, r == 0 ? "SUCCESS" : "FAILED");
-		  ioc_info(ioc, "%s: %s\n",
-			   __func__, r == 0 ? "SUCCESS" : "FAILED"));
 
 	spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
 	ioc->shost_recovery = 0;

drivers/scsi/mpt3sas/mpt3sas_base.h

@@ -76,8 +76,8 @@
 #define MPT3SAS_DRIVER_NAME		"mpt3sas"
 #define MPT3SAS_AUTHOR "Avago Technologies <MPT-FusionLinux.pdl@avagotech.com>"
 #define MPT3SAS_DESCRIPTION	"LSI MPT Fusion SAS 3.0 Device Driver"
-#define MPT3SAS_DRIVER_VERSION		"32.100.00.00"
+#define MPT3SAS_DRIVER_VERSION		"33.100.00.00"
-#define MPT3SAS_MAJOR_VERSION		32
+#define MPT3SAS_MAJOR_VERSION		33
 #define MPT3SAS_MINOR_VERSION		100
 #define MPT3SAS_BUILD_VERSION		0
 #define MPT3SAS_RELEASE_VERSION	00
@@ -90,6 +90,10 @@
 #define MPT2SAS_BUILD_VERSION		0
 #define MPT2SAS_RELEASE_VERSION	00
 
+/* CoreDump: Default timeout */
+#define MPT3SAS_DEFAULT_COREDUMP_TIMEOUT_SECONDS	(15) /*15 seconds*/
+#define MPT3SAS_COREDUMP_LOOP_DONE                     (0xFF)
+
 /*
  * Set MPT3SAS_SG_DEPTH value based on user input.
  */
@@ -140,6 +144,7 @@
 #define MAX_CHAIN_ELEMT_SZ		16
 #define DEFAULT_NUM_FWCHAIN_ELEMTS	8
 
+#define IO_UNIT_CONTROL_SHUTDOWN_TIMEOUT 6
 #define FW_IMG_HDR_READ_TIMEOUT	15
 
 #define IOC_OPERATIONAL_WAIT_COUNT	10
@@ -398,7 +403,10 @@ struct Mpi2ManufacturingPage11_t {
 	u8	HostTraceBufferFlags;		/* 4Fh */
 	u16	HostTraceBufferMaxSizeKB;	/* 50h */
 	u16	HostTraceBufferMinSizeKB;	/* 52h */
-	__le32	Reserved10[2];			/* 54h - 5Bh */
+	u8	CoreDumpTOSec;			/* 54h */
+	u8	Reserved8;			/* 55h */
+	u16	Reserved9;			/* 56h */
+	__le32	Reserved10;			/* 58h */
 };
 
 /**
@@ -589,6 +597,7 @@ static inline void sas_device_put(struct _sas_device *s)
  * @connector_name: ASCII value of the Connector's name
  * @serial_number: pointer of serial number string allocated runtime
  * @access_status: Device's Access Status
+ * @shutdown_latency: NVMe device's RTD3 Entry Latency
  * @refcount: reference count for deletion
  */
 struct _pcie_device {
@@ -611,6 +620,7 @@ struct _pcie_device {
 	u8	*serial_number;
 	u8	reset_timeout;
 	u8	access_status;
+	u16	shutdown_latency;
 	struct kref refcount;
 };
 /**
@@ -1045,6 +1055,7 @@ typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc);
  * @cpu_msix_table: table for mapping cpus to msix index
  * @cpu_msix_table_sz: table size
  * @total_io_cnt: Gives total IO count, used to load balance the interrupts
+ * @ioc_coredump_loop: will have non-zero value when FW is in CoreDump state
  * @high_iops_outstanding: used to load balance the interrupts
  *				within high iops reply queues
  * @msix_load_balance: Enables load balancing of interrupts across
@@ -1073,6 +1084,10 @@ typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc);
  * @event_context: unique id for each logged event
  * @event_log: event log pointer
  * @event_masks: events that are masked
+ * @max_shutdown_latency: timeout value for NVMe shutdown operation,
+ *			which is equal that NVMe drive's RTD3 Entry Latency
+ *			which has reported maximum RTD3 Entry Latency value
+ *			among attached NVMe drives.
  * @facts: static facts data
  * @prev_fw_facts: previous fw facts data
  * @pfacts: static port facts data
@@ -1231,6 +1246,7 @@ struct MPT3SAS_ADAPTER {
 	u32		ioc_reset_count;
 	MPT3SAS_FLUSH_RUNNING_CMDS schedule_dead_ioc_flush_running_cmds;
 	u32             non_operational_loop;
+	u8              ioc_coredump_loop;
 	atomic64_t      total_io_cnt;
 	atomic64_t	high_iops_outstanding;
 	bool            msix_load_balance;
@@ -1283,7 +1299,7 @@ struct MPT3SAS_ADAPTER {
 
 	u8		tm_custom_handling;
 	u8		nvme_abort_timeout;
-
+	u16		max_shutdown_latency;
 
 	/* static config pages */
 	struct mpt3sas_facts facts;
@@ -1531,6 +1547,17 @@ void *mpt3sas_base_get_reply_virt_addr(struct MPT3SAS_ADAPTER *ioc,
 u32 mpt3sas_base_get_iocstate(struct MPT3SAS_ADAPTER *ioc, int cooked);
 
 void mpt3sas_base_fault_info(struct MPT3SAS_ADAPTER *ioc , u16 fault_code);
+#define mpt3sas_print_fault_code(ioc, fault_code) \
+do { pr_err("%s fault info from func: %s\n", ioc->name, __func__); \
+	mpt3sas_base_fault_info(ioc, fault_code); } while (0)
+
+void mpt3sas_base_coredump_info(struct MPT3SAS_ADAPTER *ioc, u16 fault_code);
+#define mpt3sas_print_coredump_info(ioc, fault_code) \
+do { pr_err("%s fault info from func: %s\n", ioc->name, __func__); \
+	mpt3sas_base_coredump_info(ioc, fault_code); } while (0)
+
+int mpt3sas_base_wait_for_coredump_completion(struct MPT3SAS_ADAPTER *ioc,
+		const char *caller);
 int mpt3sas_base_sas_iounit_control(struct MPT3SAS_ADAPTER *ioc,
 	Mpi2SasIoUnitControlReply_t *mpi_reply,
 	Mpi2SasIoUnitControlRequest_t *mpi_request);
@@ -1552,6 +1579,11 @@ mpt3sas_wait_for_commands_to_complete(struct MPT3SAS_ADAPTER *ioc);
 
 u8 mpt3sas_base_check_cmd_timeout(struct MPT3SAS_ADAPTER *ioc,
 	u8 status, void *mpi_request, int sz);
+#define mpt3sas_check_cmd_timeout(ioc, status, mpi_request, sz, issue_reset) \
+do {	ioc_err(ioc, "In func: %s\n", __func__); \
+	issue_reset = mpt3sas_base_check_cmd_timeout(ioc, \
+	status, mpi_request, sz); } while (0)
+
 int mpt3sas_wait_for_ioc(struct MPT3SAS_ADAPTER *ioc, int wait_count);
 
 /* scsih shared API */
@@ -1560,7 +1592,8 @@ struct scsi_cmnd *mpt3sas_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc,
 u8 mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
 	u32 reply);
 void mpt3sas_scsih_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc);
-void mpt3sas_scsih_after_reset_handler(struct MPT3SAS_ADAPTER *ioc);
+void mpt3sas_scsih_clear_outstanding_scsi_tm_commands(
+	struct MPT3SAS_ADAPTER *ioc);
 void mpt3sas_scsih_reset_done_handler(struct MPT3SAS_ADAPTER *ioc);
 
 int mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 lun,
@@ -1694,7 +1727,7 @@ void mpt3sas_ctl_exit(ushort hbas_to_enumerate);
 u8 mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
 	u32 reply);
 void mpt3sas_ctl_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc);
-void mpt3sas_ctl_after_reset_handler(struct MPT3SAS_ADAPTER *ioc);
+void mpt3sas_ctl_clear_outstanding_ioctls(struct MPT3SAS_ADAPTER *ioc);
 void mpt3sas_ctl_reset_done_handler(struct MPT3SAS_ADAPTER *ioc);
 u8 mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc,
 	u8 msix_index, u32 reply);

drivers/scsi/mpt3sas/mpt3sas_config.c

@@ -101,9 +101,6 @@ _config_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
 	Mpi2ConfigRequest_t *mpi_request;
 	char *desc = NULL;
 
-	if (!(ioc->logging_level & MPT_DEBUG_CONFIG))
-		return;
-
 	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
 	switch (mpi_request->Header.PageType & MPI2_CONFIG_PAGETYPE_MASK) {
 	case MPI2_CONFIG_PAGETYPE_IO_UNIT:
@@ -269,7 +266,8 @@ mpt3sas_config_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
 		    mpi_reply->MsgLength*4);
 	}
 	ioc->config_cmds.status &= ~MPT3_CMD_PENDING;
-	_config_display_some_debug(ioc, smid, "config_done", mpi_reply);
+	if (ioc->logging_level & MPT_DEBUG_CONFIG)
+		_config_display_some_debug(ioc, smid, "config_done", mpi_reply);
 	ioc->config_cmds.smid = USHRT_MAX;
 	complete(&ioc->config_cmds.done);
 	return 1;
@@ -305,6 +303,7 @@ _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
 	u8 retry_count, issue_host_reset = 0;
 	struct config_request mem;
 	u32 ioc_status = UINT_MAX;
+	u8 issue_reset = 0;
 
 	mutex_lock(&ioc->config_cmds.mutex);
 	if (ioc->config_cmds.status != MPT3_CMD_NOT_USED) {
@@ -378,14 +377,18 @@ _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
 	config_request = mpt3sas_base_get_msg_frame(ioc, smid);
 	ioc->config_cmds.smid = smid;
 	memcpy(config_request, mpi_request, sizeof(Mpi2ConfigRequest_t));
-	_config_display_some_debug(ioc, smid, "config_request", NULL);
+	if (ioc->logging_level & MPT_DEBUG_CONFIG)
+		_config_display_some_debug(ioc, smid, "config_request", NULL);
 	init_completion(&ioc->config_cmds.done);
 	ioc->put_smid_default(ioc, smid);
 	wait_for_completion_timeout(&ioc->config_cmds.done, timeout*HZ);
 	if (!(ioc->config_cmds.status & MPT3_CMD_COMPLETE)) {
-		mpt3sas_base_check_cmd_timeout(ioc,
+		if (!(ioc->logging_level & MPT_DEBUG_CONFIG))
-			ioc->config_cmds.status, mpi_request,
+			_config_display_some_debug(ioc,
-			sizeof(Mpi2ConfigRequest_t)/4);
+			    smid, "config_request", NULL);
+		mpt3sas_check_cmd_timeout(ioc,
+		    ioc->config_cmds.status, mpi_request,
+		    sizeof(Mpi2ConfigRequest_t)/4, issue_reset);
 		retry_count++;
 		if (ioc->config_cmds.smid == smid)
 			mpt3sas_base_free_smid(ioc, smid);
@@ -404,8 +407,11 @@ _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
 		/* Reply Frame Sanity Checks to workaround FW issues */
 		if ((mpi_request->Header.PageType & 0xF) !=
 		    (mpi_reply->Header.PageType & 0xF)) {
+			if (!(ioc->logging_level & MPT_DEBUG_CONFIG))
+				_config_display_some_debug(ioc,
+				    smid, "config_request", NULL);
 			_debug_dump_mf(mpi_request, ioc->request_sz/4);
-			_debug_dump_reply(mpi_reply, ioc->request_sz/4);
+			_debug_dump_reply(mpi_reply, ioc->reply_sz/4);
 			panic("%s: %s: Firmware BUG: mpi_reply mismatch: Requested PageType(0x%02x) Reply PageType(0x%02x)\n",
 			      ioc->name, __func__,
 			      mpi_request->Header.PageType & 0xF,
@@ -415,8 +421,11 @@ _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
 		if (((mpi_request->Header.PageType & 0xF) ==
 		    MPI2_CONFIG_PAGETYPE_EXTENDED) &&
 		    mpi_request->ExtPageType != mpi_reply->ExtPageType) {
+			if (!(ioc->logging_level & MPT_DEBUG_CONFIG))
+				_config_display_some_debug(ioc,
+				    smid, "config_request", NULL);
 			_debug_dump_mf(mpi_request, ioc->request_sz/4);
-			_debug_dump_reply(mpi_reply, ioc->request_sz/4);
+			_debug_dump_reply(mpi_reply, ioc->reply_sz/4);
 			panic("%s: %s: Firmware BUG: mpi_reply mismatch: Requested ExtPageType(0x%02x) Reply ExtPageType(0x%02x)\n",
 			      ioc->name, __func__,
 			      mpi_request->ExtPageType,
@@ -439,8 +448,11 @@ _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
 		if (p) {
 			if ((mpi_request->Header.PageType & 0xF) !=
 			    (p[3] & 0xF)) {
+				if (!(ioc->logging_level & MPT_DEBUG_CONFIG))
+					_config_display_some_debug(ioc,
+					    smid, "config_request", NULL);
 				_debug_dump_mf(mpi_request, ioc->request_sz/4);
-				_debug_dump_reply(mpi_reply, ioc->request_sz/4);
+				_debug_dump_reply(mpi_reply, ioc->reply_sz/4);
 				_debug_dump_config(p, min_t(u16, mem.sz,
 				    config_page_sz)/4);
 				panic("%s: %s: Firmware BUG: config page mismatch: Requested PageType(0x%02x) Reply PageType(0x%02x)\n",
@@ -452,8 +464,11 @@ _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
 			if (((mpi_request->Header.PageType & 0xF) ==
 			    MPI2_CONFIG_PAGETYPE_EXTENDED) &&
 			    (mpi_request->ExtPageType != p[6])) {
+				if (!(ioc->logging_level & MPT_DEBUG_CONFIG))
+					_config_display_some_debug(ioc,
+					    smid, "config_request", NULL);
 				_debug_dump_mf(mpi_request, ioc->request_sz/4);
-				_debug_dump_reply(mpi_reply, ioc->request_sz/4);
+				_debug_dump_reply(mpi_reply, ioc->reply_sz/4);
 				_debug_dump_config(p, min_t(u16, mem.sz,
 				    config_page_sz)/4);
 				panic("%s: %s: Firmware BUG: config page mismatch: Requested ExtPageType(0x%02x) Reply ExtPageType(0x%02x)\n",

drivers/scsi/mpt3sas/mpt3sas_ctl.c

@@ -180,6 +180,12 @@ _ctl_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
 	case MPI2_FUNCTION_SMP_PASSTHROUGH:
 		desc = "smp_passthrough";
 		break;
+	case MPI2_FUNCTION_TOOLBOX:
+		desc = "toolbox";
+		break;
+	case MPI2_FUNCTION_NVME_ENCAPSULATED:
+		desc = "nvme_encapsulated";
+		break;
 	}
 
 	if (!desc)
@@ -478,14 +484,15 @@ void mpt3sas_ctl_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc)
 }
 
 /**
- * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
+ * mpt3sas_ctl_reset_handler - clears outstanding ioctl cmd.
  * @ioc: per adapter object
  *
  * The handler for doing any required cleanup or initialization.
  */
-void mpt3sas_ctl_after_reset_handler(struct MPT3SAS_ADAPTER *ioc)
+void mpt3sas_ctl_clear_outstanding_ioctls(struct MPT3SAS_ADAPTER *ioc)
 {
-	dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_AFTER_RESET\n", __func__));
+	dtmprintk(ioc,
+	    ioc_info(ioc, "%s: clear outstanding ioctl cmd\n", __func__));
 	if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
 		ioc->ctl_cmds.status |= MPT3_CMD_RESET;
 		mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
@@ -1021,10 +1028,9 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
 		ioc->ignore_loginfos = 0;
 	}
 	if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
-		issue_reset =
+		mpt3sas_check_cmd_timeout(ioc,
-			mpt3sas_base_check_cmd_timeout(ioc,
+		    ioc->ctl_cmds.status, mpi_request,
-				ioc->ctl_cmds.status, mpi_request,
+		    karg.data_sge_offset, issue_reset);
-				karg.data_sge_offset);
 		goto issue_host_reset;
 	}
 
@@ -1325,7 +1331,8 @@ _ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
 				 __func__));
 
 	retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
-	ioc_info(ioc, "host reset: %s\n", ((!retval) ? "SUCCESS" : "FAILED"));
+	ioc_info(ioc,
+	    "Ioctl: host reset: %s\n", ((!retval) ? "SUCCESS" : "FAILED"));
 	return 0;
 }
 
@@ -1733,10 +1740,9 @@ _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
 	    MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
 
 	if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
-		issue_reset =
+		mpt3sas_check_cmd_timeout(ioc,
-			mpt3sas_base_check_cmd_timeout(ioc,
+		    ioc->ctl_cmds.status, mpi_request,
-				ioc->ctl_cmds.status, mpi_request,
+		    sizeof(Mpi2DiagBufferPostRequest_t)/4, issue_reset);
-				sizeof(Mpi2DiagBufferPostRequest_t)/4);
 		goto issue_host_reset;
 	}
 
@@ -2108,6 +2114,7 @@ mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
 	u16 ioc_status;
 	u32 ioc_state;
 	int rc;
+	u8 reset_needed = 0;
 
 	dctlprintk(ioc, ioc_info(ioc, "%s\n",
 				 __func__));
@@ -2115,6 +2122,7 @@ mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
 	rc = 0;
 	*issue_reset = 0;
 
+
 	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
 	if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
 		if (ioc->diag_buffer_status[buffer_type] &
@@ -2157,9 +2165,10 @@ mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
 	    MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
 
 	if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
-		*issue_reset = mpt3sas_base_check_cmd_timeout(ioc,
+		mpt3sas_check_cmd_timeout(ioc,
-				ioc->ctl_cmds.status, mpi_request,
+		    ioc->ctl_cmds.status, mpi_request,
-				sizeof(Mpi2DiagReleaseRequest_t)/4);
+		    sizeof(Mpi2DiagReleaseRequest_t)/4, reset_needed);
+		 *issue_reset = reset_needed;
 		rc = -EFAULT;
 		goto out;
 	}
@@ -2417,10 +2426,9 @@ _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
 	    MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
 
 	if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
-		issue_reset =
+		mpt3sas_check_cmd_timeout(ioc,
-			mpt3sas_base_check_cmd_timeout(ioc,
+		    ioc->ctl_cmds.status, mpi_request,
-				ioc->ctl_cmds.status, mpi_request,
+		    sizeof(Mpi2DiagBufferPostRequest_t)/4, issue_reset);
-				sizeof(Mpi2DiagBufferPostRequest_t)/4);
 		goto issue_host_reset;
 	}
 

drivers/scsi/mpt3sas/mpt3sas_scsih.c

@@ -1049,6 +1049,34 @@ mpt3sas_get_pdev_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
 	return pcie_device;
 }
 
+/**
+ * _scsih_set_nvme_max_shutdown_latency - Update max_shutdown_latency.
+ * @ioc: per adapter object
+ * Context: This function will acquire ioc->pcie_device_lock
+ *
+ * Update ioc->max_shutdown_latency to that NVMe drives RTD3 Entry Latency
+ * which has reported maximum among all available NVMe drives.
+ * Minimum max_shutdown_latency will be six seconds.
+ */
+static void
+_scsih_set_nvme_max_shutdown_latency(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct _pcie_device *pcie_device;
+	unsigned long flags;
+	u16 shutdown_latency = IO_UNIT_CONTROL_SHUTDOWN_TIMEOUT;
+
+	spin_lock_irqsave(&ioc->pcie_device_lock, flags);
+	list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) {
+		if (pcie_device->shutdown_latency) {
+			if (shutdown_latency < pcie_device->shutdown_latency)
+				shutdown_latency =
+					pcie_device->shutdown_latency;
+		}
+	}
+	ioc->max_shutdown_latency = shutdown_latency;
+	spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
+}
+
 /**
  * _scsih_pcie_device_remove - remove pcie_device from list.
  * @ioc: per adapter object
@@ -1063,6 +1091,7 @@ _scsih_pcie_device_remove(struct MPT3SAS_ADAPTER *ioc,
 {
 	unsigned long flags;
 	int was_on_pcie_device_list = 0;
+	u8 update_latency = 0;
 
 	if (!pcie_device)
 		return;
@@ -1082,11 +1111,21 @@ _scsih_pcie_device_remove(struct MPT3SAS_ADAPTER *ioc,
 		list_del_init(&pcie_device->list);
 		was_on_pcie_device_list = 1;
 	}
+	if (pcie_device->shutdown_latency == ioc->max_shutdown_latency)
+		update_latency = 1;
 	spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
 	if (was_on_pcie_device_list) {
 		kfree(pcie_device->serial_number);
 		pcie_device_put(pcie_device);
 	}
+
+	/*
+	 * This device's RTD3 Entry Latency matches IOC's
+	 * max_shutdown_latency. Recalculate IOC's max_shutdown_latency
+	 * from the available drives as current drive is getting removed.
+	 */
+	if (update_latency)
+		_scsih_set_nvme_max_shutdown_latency(ioc);
 }
 
 
@@ -1101,6 +1140,7 @@ _scsih_pcie_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
 	struct _pcie_device *pcie_device;
 	unsigned long flags;
 	int was_on_pcie_device_list = 0;
+	u8 update_latency = 0;
 
 	if (ioc->shost_recovery)
 		return;
@@ -1113,12 +1153,22 @@ _scsih_pcie_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
 			was_on_pcie_device_list = 1;
 			pcie_device_put(pcie_device);
 		}
+		if (pcie_device->shutdown_latency == ioc->max_shutdown_latency)
+			update_latency = 1;
 	}
 	spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
 	if (was_on_pcie_device_list) {
 		_scsih_pcie_device_remove_from_sml(ioc, pcie_device);
 		pcie_device_put(pcie_device);
 	}
+
+	/*
+	 * This device's RTD3 Entry Latency matches IOC's
+	 * max_shutdown_latency. Recalculate IOC's max_shutdown_latency
+	 * from the available drives as current drive is getting removed.
+	 */
+	if (update_latency)
+		_scsih_set_nvme_max_shutdown_latency(ioc);
 }
 
 /**
@@ -1554,7 +1604,12 @@ scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
 		max_depth = 1;
 	if (qdepth > max_depth)
 		qdepth = max_depth;
-	return scsi_change_queue_depth(sdev, qdepth);
+	scsi_change_queue_depth(sdev, qdepth);
+	sdev_printk(KERN_INFO, sdev,
+	    "qdepth(%d), tagged(%d), scsi_level(%d), cmd_que(%d)\n",
+	    sdev->queue_depth, sdev->tagged_supported,
+	    sdev->scsi_level, ((sdev->inquiry[7] & 2) >> 1));
+	return sdev->queue_depth;
 }
 
 /**
@@ -2673,6 +2728,7 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 lun,
 	u16 smid = 0;
 	u32 ioc_state;
 	int rc;
+	u8 issue_reset = 0;
 
 	lockdep_assert_held(&ioc->tm_cmds.mutex);
 
@@ -2695,7 +2751,13 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 lun,
 	}
 
 	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
-		mpt3sas_base_fault_info(ioc, ioc_state &
+		mpt3sas_print_fault_code(ioc, ioc_state &
+		    MPI2_DOORBELL_DATA_MASK);
+		rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
+		return (!rc) ? SUCCESS : FAILED;
+	} else if ((ioc_state & MPI2_IOC_STATE_MASK) ==
+	    MPI2_IOC_STATE_COREDUMP) {
+		mpt3sas_print_coredump_info(ioc, ioc_state &
 		    MPI2_DOORBELL_DATA_MASK);
 		rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
 		return (!rc) ? SUCCESS : FAILED;
@@ -2726,9 +2788,10 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 lun,
 	ioc->put_smid_hi_priority(ioc, smid, msix_task);
 	wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
 	if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) {
-		if (mpt3sas_base_check_cmd_timeout(ioc,
+		mpt3sas_check_cmd_timeout(ioc,
-			ioc->tm_cmds.status, mpi_request,
+		    ioc->tm_cmds.status, mpi_request,
-			sizeof(Mpi2SCSITaskManagementRequest_t)/4)) {
+		    sizeof(Mpi2SCSITaskManagementRequest_t)/4, issue_reset);
+		if (issue_reset) {
 			rc = mpt3sas_base_hard_reset_handler(ioc,
 					FORCE_BIG_HAMMER);
 			rc = (!rc) ? SUCCESS : FAILED;
@@ -2875,15 +2938,17 @@ scsih_abort(struct scsi_cmnd *scmd)
 
 	u8 timeout = 30;
 	struct _pcie_device *pcie_device = NULL;
-	sdev_printk(KERN_INFO, scmd->device,
+	sdev_printk(KERN_INFO, scmd->device, "attempting task abort!"
-		"attempting task abort! scmd(%p)\n", scmd);
+	    "scmd(0x%p), outstanding for %u ms & timeout %u ms\n",
+	    scmd, jiffies_to_msecs(jiffies - scmd->jiffies_at_alloc),
+	    (scmd->request->timeout / HZ) * 1000);
 	_scsih_tm_display_info(ioc, scmd);
 
 	sas_device_priv_data = scmd->device->hostdata;
 	if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
 	    ioc->remove_host) {
 		sdev_printk(KERN_INFO, scmd->device,
-			"device been deleted! scmd(%p)\n", scmd);
+		    "device been deleted! scmd(0x%p)\n", scmd);
 		scmd->result = DID_NO_CONNECT << 16;
 		scmd->scsi_done(scmd);
 		r = SUCCESS;
@@ -2892,6 +2957,8 @@ scsih_abort(struct scsi_cmnd *scmd)
 
 	/* check for completed command */
 	if (st == NULL || st->cb_idx == 0xFF) {
+		sdev_printk(KERN_INFO, scmd->device, "No reference found at "
+		    "driver, assuming scmd(0x%p) might have completed\n", scmd);
 		scmd->result = DID_RESET << 16;
 		r = SUCCESS;
 		goto out;
@@ -2920,7 +2987,7 @@ scsih_abort(struct scsi_cmnd *scmd)
 	if (r == SUCCESS && st->cb_idx != 0xFF)
 		r = FAILED;
  out:
-	sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
+	sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(0x%p)\n",
 	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
 	if (pcie_device)
 		pcie_device_put(pcie_device);
@@ -2949,14 +3016,14 @@ scsih_dev_reset(struct scsi_cmnd *scmd)
 	struct MPT3SAS_TARGET *target_priv_data = starget->hostdata;
 
 	sdev_printk(KERN_INFO, scmd->device,
-		"attempting device reset! scmd(%p)\n", scmd);
+	    "attempting device reset! scmd(0x%p)\n", scmd);
 	_scsih_tm_display_info(ioc, scmd);
 
 	sas_device_priv_data = scmd->device->hostdata;
 	if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
 	    ioc->remove_host) {
 		sdev_printk(KERN_INFO, scmd->device,
-			"device been deleted! scmd(%p)\n", scmd);
+		    "device been deleted! scmd(0x%p)\n", scmd);
 		scmd->result = DID_NO_CONNECT << 16;
 		scmd->scsi_done(scmd);
 		r = SUCCESS;
@@ -2996,7 +3063,7 @@ scsih_dev_reset(struct scsi_cmnd *scmd)
 	if (r == SUCCESS && atomic_read(&scmd->device->device_busy))
 		r = FAILED;
  out:
-	sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
+	sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(0x%p)\n",
 	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
 
 	if (sas_device)
@@ -3027,15 +3094,15 @@ scsih_target_reset(struct scsi_cmnd *scmd)
 	struct scsi_target *starget = scmd->device->sdev_target;
 	struct MPT3SAS_TARGET *target_priv_data = starget->hostdata;
 
-	starget_printk(KERN_INFO, starget, "attempting target reset! scmd(%p)\n",
+	starget_printk(KERN_INFO, starget,
-		scmd);
+	    "attempting target reset! scmd(0x%p)\n", scmd);
 	_scsih_tm_display_info(ioc, scmd);
 
 	sas_device_priv_data = scmd->device->hostdata;
 	if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
 	    ioc->remove_host) {
-		starget_printk(KERN_INFO, starget, "target been deleted! scmd(%p)\n",
+		starget_printk(KERN_INFO, starget,
-			scmd);
+		    "target been deleted! scmd(0x%p)\n", scmd);
 		scmd->result = DID_NO_CONNECT << 16;
 		scmd->scsi_done(scmd);
 		r = SUCCESS;
@@ -3074,7 +3141,7 @@ scsih_target_reset(struct scsi_cmnd *scmd)
 	if (r == SUCCESS && atomic_read(&starget->target_busy))
 		r = FAILED;
  out:
-	starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
+	starget_printk(KERN_INFO, starget, "target reset: %s scmd(0x%p)\n",
 	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
 
 	if (sas_device)
@@ -3097,7 +3164,7 @@ scsih_host_reset(struct scsi_cmnd *scmd)
 	struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
 	int r, retval;
 
-	ioc_info(ioc, "attempting host reset! scmd(%p)\n", scmd);
+	ioc_info(ioc, "attempting host reset! scmd(0x%p)\n", scmd);
 	scsi_print_command(scmd);
 
 	if (ioc->is_driver_loading || ioc->remove_host) {
@@ -3109,7 +3176,7 @@ scsih_host_reset(struct scsi_cmnd *scmd)
 	retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
 	r = (retval < 0) ? FAILED : SUCCESS;
 out:
-	ioc_info(ioc, "host reset: %s scmd(%p)\n",
+	ioc_info(ioc, "host reset: %s scmd(0x%p)\n",
 		 r == SUCCESS ? "SUCCESS" : "FAILED", scmd);
 
 	return r;
@@ -4475,6 +4542,7 @@ static void
 _scsih_temp_threshold_events(struct MPT3SAS_ADAPTER *ioc,
 	Mpi2EventDataTemperature_t *event_data)
 {
+	u32 doorbell;
 	if (ioc->temp_sensors_count >= event_data->SensorNum) {
 		ioc_err(ioc, "Temperature Threshold flags %s%s%s%s exceeded for Sensor: %d !!!\n",
 			le16_to_cpu(event_data->Status) & 0x1 ? "0 " : " ",
@@ -4484,6 +4552,18 @@ _scsih_temp_threshold_events(struct MPT3SAS_ADAPTER *ioc,
 			event_data->SensorNum);
 		ioc_err(ioc, "Current Temp In Celsius: %d\n",
 			event_data->CurrentTemperature);
+		if (ioc->hba_mpi_version_belonged != MPI2_VERSION) {
+			doorbell = mpt3sas_base_get_iocstate(ioc, 0);
+			if ((doorbell & MPI2_IOC_STATE_MASK) ==
+			    MPI2_IOC_STATE_FAULT) {
+				mpt3sas_print_fault_code(ioc,
+				    doorbell & MPI2_DOORBELL_DATA_MASK);
+			} else if ((doorbell & MPI2_IOC_STATE_MASK) ==
+			    MPI2_IOC_STATE_COREDUMP) {
+				mpt3sas_print_coredump_info(ioc,
+				    doorbell & MPI2_DOORBELL_DATA_MASK);
+			}
+		}
 	}
 }
 
@@ -6933,6 +7013,16 @@ _scsih_pcie_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
 	    le32_to_cpu(pcie_device_pg0.DeviceInfo)))) {
 		pcie_device->nvme_mdts =
 		    le32_to_cpu(pcie_device_pg2.MaximumDataTransferSize);
+		pcie_device->shutdown_latency =
+			le16_to_cpu(pcie_device_pg2.ShutdownLatency);
+		/*
+		 * Set IOC's max_shutdown_latency to drive's RTD3 Entry Latency
+		 * if drive's RTD3 Entry Latency is greater then IOC's
+		 * max_shutdown_latency.
+		 */
+		if (pcie_device->shutdown_latency > ioc->max_shutdown_latency)
+			ioc->max_shutdown_latency =
+				pcie_device->shutdown_latency;
 		if (pcie_device_pg2.ControllerResetTO)
 			pcie_device->reset_timeout =
 			    pcie_device_pg2.ControllerResetTO;
@@ -7669,10 +7759,9 @@ _scsih_ir_fastpath(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phys_disk_num)
 	wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
 
 	if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
-		issue_reset =
+		mpt3sas_check_cmd_timeout(ioc,
-			mpt3sas_base_check_cmd_timeout(ioc,
+		    ioc->scsih_cmds.status, mpi_request,
-				ioc->scsih_cmds.status, mpi_request,
+		    sizeof(Mpi2RaidActionRequest_t)/4, issue_reset);
-				sizeof(Mpi2RaidActionRequest_t)/4);
 		rc = -EFAULT;
 		goto out;
 	}
@@ -9272,15 +9361,17 @@ void mpt3sas_scsih_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc)
 }
 
 /**
- * mpt3sas_scsih_after_reset_handler - reset callback handler (for scsih)
+ * mpt3sas_scsih_clear_outstanding_scsi_tm_commands - clears outstanding
+ *							scsi & tm cmds.
  * @ioc: per adapter object
  *
  * The handler for doing any required cleanup or initialization.
  */
 void
-mpt3sas_scsih_after_reset_handler(struct MPT3SAS_ADAPTER *ioc)
+mpt3sas_scsih_clear_outstanding_scsi_tm_commands(struct MPT3SAS_ADAPTER *ioc)
 {
-	dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_AFTER_RESET\n", __func__));
+	dtmprintk(ioc,
+	    ioc_info(ioc, "%s: clear outstanding scsi & tm cmds\n", __func__));
 	if (ioc->scsih_cmds.status & MPT3_CMD_PENDING) {
 		ioc->scsih_cmds.status |= MPT3_CMD_RESET;
 		mpt3sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
@@ -9357,6 +9448,7 @@ _mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
 		}
 		_scsih_remove_unresponding_devices(ioc);
 		_scsih_scan_for_devices_after_reset(ioc);
+		_scsih_set_nvme_max_shutdown_latency(ioc);
 		break;
 	case MPT3SAS_PORT_ENABLE_COMPLETE:
 		ioc->start_scan = 0;
@@ -9659,6 +9751,75 @@ _scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
 	kfree(sas_expander);
 }
 
+/**
+ * _scsih_nvme_shutdown - NVMe shutdown notification
+ * @ioc: per adapter object
+ *
+ * Sending IoUnitControl request with shutdown operation code to alert IOC that
+ * the host system is shutting down so that IOC can issue NVMe shutdown to
+ * NVMe drives attached to it.
+ */
+static void
+_scsih_nvme_shutdown(struct MPT3SAS_ADAPTER *ioc)
+{
+	Mpi26IoUnitControlRequest_t *mpi_request;
+	Mpi26IoUnitControlReply_t *mpi_reply;
+	u16 smid;
+
+	/* are there any NVMe devices ? */
+	if (list_empty(&ioc->pcie_device_list))
+		return;
+
+	mutex_lock(&ioc->scsih_cmds.mutex);
+
+	if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
+		ioc_err(ioc, "%s: scsih_cmd in use\n", __func__);
+		goto out;
+	}
+
+	ioc->scsih_cmds.status = MPT3_CMD_PENDING;
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
+	if (!smid) {
+		ioc_err(ioc,
+		    "%s: failed obtaining a smid\n", __func__);
+		ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
+		goto out;
+	}
+
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->scsih_cmds.smid = smid;
+	memset(mpi_request, 0, sizeof(Mpi26IoUnitControlRequest_t));
+	mpi_request->Function = MPI2_FUNCTION_IO_UNIT_CONTROL;
+	mpi_request->Operation = MPI26_CTRL_OP_SHUTDOWN;
+
+	init_completion(&ioc->scsih_cmds.done);
+	ioc->put_smid_default(ioc, smid);
+	/* Wait for max_shutdown_latency seconds */
+	ioc_info(ioc,
+		"Io Unit Control shutdown (sending), Shutdown latency %d sec\n",
+		ioc->max_shutdown_latency);
+	wait_for_completion_timeout(&ioc->scsih_cmds.done,
+			ioc->max_shutdown_latency*HZ);
+
+	if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
+		ioc_err(ioc, "%s: timeout\n", __func__);
+		goto out;
+	}
+
+	if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
+		mpi_reply = ioc->scsih_cmds.reply;
+		ioc_info(ioc, "Io Unit Control shutdown (complete):"
+			"ioc_status(0x%04x), loginfo(0x%08x)\n",
+			le16_to_cpu(mpi_reply->IOCStatus),
+			le32_to_cpu(mpi_reply->IOCLogInfo));
+	}
+ out:
+	ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
+	mutex_unlock(&ioc->scsih_cmds.mutex);
+}
+
+
 /**
  * _scsih_ir_shutdown - IR shutdown notification
  * @ioc: per adapter object
@@ -9851,6 +10012,7 @@ scsih_shutdown(struct pci_dev *pdev)
 				&ioc->ioc_pg1_copy);
 
 	_scsih_ir_shutdown(ioc);
+	_scsih_nvme_shutdown(ioc);
 	mpt3sas_base_detach(ioc);
 }
 
@@ -10533,6 +10695,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
 	ioc->logging_level = logging_level;
 	ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
+	/* Host waits for minimum of six seconds */
+	ioc->max_shutdown_latency = IO_UNIT_CONTROL_SHUTDOWN_TIMEOUT;
 	/*
 	 * Enable MEMORY MOVE support flag.
 	 */
@@ -10681,6 +10845,7 @@ scsih_suspend(struct pci_dev *pdev, pm_message_t state)
 	mpt3sas_base_stop_watchdog(ioc);
 	flush_scheduled_work();
 	scsi_block_requests(shost);
+	_scsih_nvme_shutdown(ioc);
 	device_state = pci_choose_state(pdev, state);
 	ioc_info(ioc, "pdev=0x%p, slot=%s, entering operating state [D%d]\n",
 		 pdev, pci_name(pdev), device_state);
@@ -10715,7 +10880,7 @@ scsih_resume(struct pci_dev *pdev)
 	r = mpt3sas_base_map_resources(ioc);
 	if (r)
 		return r;
-
+	ioc_info(ioc, "Issuing Hard Reset as part of OS Resume\n");
 	mpt3sas_base_hard_reset_handler(ioc, SOFT_RESET);
 	scsi_unblock_requests(shost);
 	mpt3sas_base_start_watchdog(ioc);
@@ -10784,6 +10949,7 @@ scsih_pci_slot_reset(struct pci_dev *pdev)
 	if (rc)
 		return PCI_ERS_RESULT_DISCONNECT;
 
+	ioc_info(ioc, "Issuing Hard Reset as part of PCI Slot Reset\n");
 	rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
 
 	ioc_warn(ioc, "hard reset: %s\n",

drivers/scsi/mpt3sas/mpt3sas_transport.c

@@ -719,11 +719,10 @@ mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc, u16 handle,
 		sas_device_put(sas_device);
 	}
 
-	if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
+	dev_info(&rphy->dev,
-		dev_printk(KERN_INFO, &rphy->dev,
+	    "add: handle(0x%04x), sas_addr(0x%016llx)\n", handle,
-			"add: handle(0x%04x), sas_addr(0x%016llx)\n",
+	    (unsigned long long)mpt3sas_port->remote_identify.sas_address);
-			handle, (unsigned long long)
+
-		    mpt3sas_port->remote_identify.sas_address);
 	mpt3sas_port->rphy = rphy;
 	spin_lock_irqsave(&ioc->sas_node_lock, flags);
 	list_add_tail(&mpt3sas_port->port_list, &sas_node->sas_port_list);
@@ -813,6 +812,8 @@ mpt3sas_transport_port_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
 	}
 	if (!ioc->remove_host)
 		sas_port_delete(mpt3sas_port->port);
+	ioc_info(ioc, "%s: removed: sas_addr(0x%016llx)\n",
+	    __func__, (unsigned long long)sas_address);
 	kfree(mpt3sas_port);
 }
 

drivers/scsi/mvsas/mv_init.c

@@ -47,6 +47,9 @@ static struct scsi_host_template mvs_sht = {
 	.eh_target_reset_handler = sas_eh_target_reset_handler,
 	.target_destroy		= sas_target_destroy,
 	.ioctl			= sas_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl		= sas_ioctl,
+#endif
 	.shost_attrs		= mvst_host_attrs,
 	.track_queue_depth	= 1,
 };

drivers/scsi/myrb.h

@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
- *
+/*
  * Linux Driver for Mylex DAC960/AcceleRAID/eXtremeRAID PCI RAID Controllers
  *
  * Copyright 2017 Hannes Reinecke, SUSE Linux GmbH <hare@suse.com>

drivers/scsi/myrs.h

@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
- *
+/*
  * Linux Driver for Mylex DAC960/AcceleRAID/eXtremeRAID PCI RAID Controllers
  *
  * This driver supports the newer, SCSI-based firmware interface only.

drivers/scsi/pm8001/pm8001_init.c

@@ -101,6 +101,9 @@ static struct scsi_host_template pm8001_sht = {
 	.eh_target_reset_handler = sas_eh_target_reset_handler,
 	.target_destroy		= sas_target_destroy,
 	.ioctl			= sas_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl		= sas_ioctl,
+#endif
 	.shost_attrs		= pm8001_host_attrs,
 	.track_queue_depth	= 1,
 };

drivers/scsi/qla1280.c

@@ -1699,6 +1699,16 @@ qla1280_load_firmware_pio(struct scsi_qla_host *ha)
 	return err;
 }
 
+#ifdef QLA_64BIT_PTR
+#define LOAD_CMD	MBC_LOAD_RAM_A64_ROM
+#define DUMP_CMD	MBC_DUMP_RAM_A64_ROM
+#define CMD_ARGS	(BIT_7 | BIT_6 | BIT_4 | BIT_3 | BIT_2 | BIT_1 | BIT_0)
+#else
+#define LOAD_CMD	MBC_LOAD_RAM
+#define DUMP_CMD	MBC_DUMP_RAM
+#define CMD_ARGS	(BIT_4 | BIT_3 | BIT_2 | BIT_1 | BIT_0)
+#endif
+
 #define DUMP_IT_BACK 0		/* for debug of RISC loading */
 static int
 qla1280_load_firmware_dma(struct scsi_qla_host *ha)
@@ -1748,7 +1758,7 @@ qla1280_load_firmware_dma(struct scsi_qla_host *ha)
 		for(i = 0; i < cnt; i++)
 			((__le16 *)ha->request_ring)[i] = fw_data[i];
 
-		mb[0] = MBC_LOAD_RAM;
+		mb[0] = LOAD_CMD;
 		mb[1] = risc_address;
 		mb[4] = cnt;
 		mb[3] = ha->request_dma & 0xffff;
@@ -1759,8 +1769,7 @@ qla1280_load_firmware_dma(struct scsi_qla_host *ha)
 				__func__, mb[0],
 				(void *)(long)ha->request_dma,
 				mb[6], mb[7], mb[2], mb[3]);
-		err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
+		err = qla1280_mailbox_command(ha, CMD_ARGS, mb);
-				BIT_1 | BIT_0, mb);
 		if (err) {
 			printk(KERN_ERR "scsi(%li): Failed to load partial "
 			       "segment of f\n", ha->host_no);
@@ -1768,7 +1777,7 @@ qla1280_load_firmware_dma(struct scsi_qla_host *ha)
 		}
 
 #if DUMP_IT_BACK
-		mb[0] = MBC_DUMP_RAM;
+		mb[0] = DUMP_CMD;
 		mb[1] = risc_address;
 		mb[4] = cnt;
 		mb[3] = p_tbuf & 0xffff;
@@ -1776,8 +1785,7 @@ qla1280_load_firmware_dma(struct scsi_qla_host *ha)
 		mb[7] = upper_32_bits(p_tbuf) & 0xffff;
 		mb[6] = upper_32_bits(p_tbuf) >> 16;
 
-		err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
+		err = qla1280_mailbox_command(ha, CMD_ARGS, mb);
-				BIT_1 | BIT_0, mb);
 		if (err) {
 			printk(KERN_ERR
 			       "Failed to dump partial segment of f/w\n");

drivers/scsi/qla1280.h

@@ -277,6 +277,8 @@ struct device_reg {
 #define MBC_MAILBOX_REGISTER_TEST	6	/* Wrap incoming mailboxes */
 #define MBC_VERIFY_CHECKSUM		7	/* Verify checksum */
 #define MBC_ABOUT_FIRMWARE		8	/* Get firmware revision */
+#define MBC_LOAD_RAM_A64_ROM		9	/* Load RAM 64bit ROM version */
+#define MBC_DUMP_RAM_A64_ROM		0x0a	/* Dump RAM 64bit ROM version */
 #define MBC_INIT_REQUEST_QUEUE		0x10	/* Initialize request queue */
 #define MBC_INIT_RESPONSE_QUEUE		0x11	/* Initialize response queue */
 #define MBC_EXECUTE_IOCB		0x12	/* Execute IOCB command */

drivers/scsi/qla2xxx/qla_bsg.c

@@ -54,7 +54,8 @@ void qla2x00_bsg_sp_free(srb_t *sp)
 	if (sp->type == SRB_CT_CMD ||
 	    sp->type == SRB_FXIOCB_BCMD ||
 	    sp->type == SRB_ELS_CMD_HST)
-		kfree(sp->fcport);
+		qla2x00_free_fcport(sp->fcport);
+
 	qla2x00_rel_sp(sp);
 }
 
@@ -405,7 +406,7 @@ done_unmap_sg:
 
 done_free_fcport:
 	if (bsg_request->msgcode == FC_BSG_RPT_ELS)
-		kfree(fcport);
+		qla2x00_free_fcport(fcport);
 done:
 	return rval;
 }
@@ -545,7 +546,7 @@ qla2x00_process_ct(struct bsg_job *bsg_job)
 	return rval;
 
 done_free_fcport:
-	kfree(fcport);
+	qla2x00_free_fcport(fcport);
 done_unmap_sg:
 	dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
 		bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
@@ -796,7 +797,7 @@ qla2x00_process_loopback(struct bsg_job *bsg_job)
 
 	if (atomic_read(&vha->loop_state) == LOOP_READY &&
 	    (ha->current_topology == ISP_CFG_F ||
-	    (le32_to_cpu(*(uint32_t *)req_data) == ELS_OPCODE_BYTE &&
+	    (get_unaligned_le32(req_data) == ELS_OPCODE_BYTE &&
 	     req_data_len == MAX_ELS_FRAME_PAYLOAD)) &&
 	    elreq.options == EXTERNAL_LOOPBACK) {
 		type = "FC_BSG_HST_VENDOR_ECHO_DIAG";
@@ -2049,7 +2050,7 @@ qlafx00_mgmt_cmd(struct bsg_job *bsg_job)
 	return rval;
 
 done_free_fcport:
-	kfree(fcport);
+	qla2x00_free_fcport(fcport);
 
 done_unmap_rsp_sg:
 	if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)

drivers/scsi/qla2xxx/qla_dbg.c

@@ -18,7 +18,7 @@
  * | Device Discovery             |       0x2134       | 0x210e-0x2116  |
  * |				  | 		       | 0x211a         |
  * |                              |                    | 0x211c-0x2128  |
- * |                              |                    | 0x212a-0x2130  |
+ * |                              |                    | 0x212a-0x2134  |
  * | Queue Command and IO tracing |       0x3074       | 0x300b         |
  * |                              |                    | 0x3027-0x3028  |
  * |                              |                    | 0x303d-0x3041  |

drivers/scsi/qla2xxx/qla_def.h

@@ -2402,6 +2402,7 @@ typedef struct fc_port {
 	unsigned int scan_needed:1;
 	unsigned int n2n_flag:1;
 	unsigned int explicit_logout:1;
+	unsigned int prli_pend_timer:1;
 
 	struct completion nvme_del_done;
 	uint32_t nvme_prli_service_param;
@@ -2428,6 +2429,7 @@ typedef struct fc_port {
 	struct work_struct free_work;
 	struct work_struct reg_work;
 	uint64_t jiffies_at_registration;
+	unsigned long prli_expired;
 	struct qlt_plogi_ack_t *plogi_link[QLT_PLOGI_LINK_MAX];
 
 	uint16_t tgt_id;
@@ -2464,6 +2466,7 @@ typedef struct fc_port {
 	struct qla_tgt_sess *tgt_session;
 	struct ct_sns_desc ct_desc;
 	enum discovery_state disc_state;
+	atomic_t shadow_disc_state;
 	enum discovery_state next_disc_state;
 	enum login_state fw_login_state;
 	unsigned long dm_login_expire;
@@ -2510,6 +2513,19 @@ struct event_arg {
 
 extern const char *const port_state_str[5];
 
+static const char * const port_dstate_str[] = {
+	"DELETED",
+	"GNN_ID",
+	"GNL",
+	"LOGIN_PEND",
+	"LOGIN_FAILED",
+	"GPDB",
+	"UPD_FCPORT",
+	"LOGIN_COMPLETE",
+	"ADISC",
+	"DELETE_PEND"
+};
+
 /*
  * FC port flags.
  */
@@ -3263,7 +3279,6 @@ enum qla_work_type {
 	QLA_EVT_IDC_ACK,
 	QLA_EVT_ASYNC_LOGIN,
 	QLA_EVT_ASYNC_LOGOUT,
-	QLA_EVT_ASYNC_LOGOUT_DONE,
 	QLA_EVT_ASYNC_ADISC,
 	QLA_EVT_UEVENT,
 	QLA_EVT_AENFX,
@@ -3953,7 +3968,7 @@ struct qla_hw_data {
 	void		*sfp_data;
 	dma_addr_t	sfp_data_dma;
 
-	void		*flt;
+	struct qla_flt_header *flt;
 	dma_addr_t	flt_dma;
 
 #define XGMAC_DATA_SIZE	4096
@@ -4845,6 +4860,9 @@ struct sff_8247_a0 {
 	(ha->fc4_type_priority == FC4_PRIORITY_NVME)) || \
 	NVME_ONLY_TARGET(fcport)) \
 
+#define PRLI_PHASE(_cls) \
+	((_cls == DSC_LS_PRLI_PEND) || (_cls == DSC_LS_PRLI_COMP))
+
 #include "qla_target.h"
 #include "qla_gbl.h"
 #include "qla_dbg.h"

drivers/scsi/qla2xxx/qla_fw.h

@@ -1354,12 +1354,12 @@ struct vp_rpt_id_entry_24xx {
 	uint8_t port_id[3];
 	uint8_t format;
 	union {
-		struct {
+		struct _f0 {
 			/* format 0 loop */
 			uint8_t vp_idx_map[16];
 			uint8_t reserved_4[32];
 		} f0;
-		struct {
+		struct _f1 {
 			/* format 1 fabric */
 			uint8_t vpstat1_subcode; /* vp_status=1 subcode */
 			uint8_t flags;
@@ -1381,21 +1381,22 @@ struct vp_rpt_id_entry_24xx {
 			uint16_t bbcr;
 			uint8_t reserved_5[6];
 		} f1;
-		struct { /* format 2: N2N direct connect */
+		struct _f2 { /* format 2: N2N direct connect */
-		    uint8_t vpstat1_subcode;
+			uint8_t vpstat1_subcode;
-		    uint8_t flags;
+			uint8_t flags;
-		    uint16_t rsv6;
+			uint16_t fip_flags;
-		    uint8_t rsv2[12];
+			uint8_t rsv2[12];
 
-		    uint8_t ls_rjt_vendor;
+			uint8_t ls_rjt_vendor;
-		    uint8_t ls_rjt_explanation;
+			uint8_t ls_rjt_explanation;
-		    uint8_t ls_rjt_reason;
+			uint8_t ls_rjt_reason;
-		    uint8_t rsv3[5];
+			uint8_t rsv3[5];
 
-		    uint8_t port_name[8];
+			uint8_t port_name[8];
-		    uint8_t node_name[8];
+			uint8_t node_name[8];
-		    uint8_t remote_nport_id[4];
+			uint16_t bbcr;
-		    uint32_t reserved_5;
+			uint8_t reserved_5[2];
+			uint8_t remote_nport_id[4];
 		} f2;
 	} u;
 };
@@ -1470,13 +1471,6 @@ struct qla_flt_location {
 	uint16_t checksum;
 };
 
-struct qla_flt_header {
-	uint16_t version;
-	uint16_t length;
-	uint16_t checksum;
-	uint16_t unused;
-};
-
 #define FLT_REG_FW		0x01
 #define FLT_REG_BOOT_CODE	0x07
 #define FLT_REG_VPD_0		0x14
@@ -1537,6 +1531,14 @@ struct qla_flt_region {
 	uint32_t end;
 };
 
+struct qla_flt_header {
+	uint16_t version;
+	uint16_t length;
+	uint16_t checksum;
+	uint16_t unused;
+	struct qla_flt_region region[0];
+};
+
 #define FLT_REGION_SIZE		16
 #define FLT_MAX_REGIONS		0xFF
 #define FLT_REGIONS_SIZE	(FLT_REGION_SIZE * FLT_MAX_REGIONS)

drivers/scsi/qla2xxx/qla_gbl.h

@@ -72,14 +72,13 @@ extern int qla2x00_async_adisc(struct scsi_qla_host *, fc_port_t *,
 extern int qla2x00_async_tm_cmd(fc_port_t *, uint32_t, uint32_t, uint32_t);
 extern void qla2x00_async_login_done(struct scsi_qla_host *, fc_port_t *,
     uint16_t *);
-extern void qla2x00_async_logout_done(struct scsi_qla_host *, fc_port_t *,
-    uint16_t *);
 struct qla_work_evt *qla2x00_alloc_work(struct scsi_qla_host *,
     enum qla_work_type);
 extern int qla24xx_async_gnl(struct scsi_qla_host *, fc_port_t *);
 int qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e);
 extern void *qla2x00_alloc_iocbs_ready(struct qla_qpair *, srb_t *);
 extern int qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *, fc_port_t *);
+extern int qla24xx_async_abort_cmd(srb_t *, bool);
 
 extern void qla2x00_set_fcport_state(fc_port_t *fcport, int state);
 extern fc_port_t *
@@ -182,8 +181,6 @@ extern int qla2x00_post_async_login_work(struct scsi_qla_host *, fc_port_t *,
     uint16_t *);
 extern int qla2x00_post_async_logout_work(struct scsi_qla_host *, fc_port_t *,
     uint16_t *);
-extern int qla2x00_post_async_logout_done_work(struct scsi_qla_host *,
-    fc_port_t *, uint16_t *);
 extern int qla2x00_post_async_adisc_work(struct scsi_qla_host *, fc_port_t *,
     uint16_t *);
 extern int qla2x00_post_async_adisc_done_work(struct scsi_qla_host *,
@@ -201,6 +198,7 @@ extern void qla2x00_free_host(struct scsi_qla_host *);
 extern void qla2x00_relogin(struct scsi_qla_host *);
 extern void qla2x00_do_work(struct scsi_qla_host *);
 extern void qla2x00_free_fcports(struct scsi_qla_host *);
+extern void qla2x00_free_fcport(fc_port_t *);
 
 extern void qla83xx_schedule_work(scsi_qla_host_t *, int);
 extern void qla83xx_service_idc_aen(struct work_struct *);
@@ -253,8 +251,9 @@ extern scsi_qla_host_t *qla24xx_create_vhost(struct fc_vport *);
 extern void qla2x00_sp_free_dma(srb_t *sp);
 extern char *qla2x00_get_fw_version_str(struct scsi_qla_host *, char *);
 
-extern void qla2x00_mark_device_lost(scsi_qla_host_t *, fc_port_t *, int, int);
+extern void qla2x00_mark_device_lost(scsi_qla_host_t *, fc_port_t *, int);
-extern void qla2x00_mark_all_devices_lost(scsi_qla_host_t *, int);
+extern void qla2x00_mark_all_devices_lost(scsi_qla_host_t *);
+extern int qla24xx_async_abort_cmd(srb_t *, bool);
 
 extern struct fw_blob *qla2x00_request_firmware(scsi_qla_host_t *);
 

drivers/scsi/qla2xxx/qla_gs.c

@@ -2963,7 +2963,6 @@ int qla24xx_post_gpsc_work(struct scsi_qla_host *vha, fc_port_t *fcport)
 		return QLA_FUNCTION_FAILED;
 
 	e->u.fcport.fcport = fcport;
-	fcport->flags |= FCF_ASYNC_ACTIVE;
 	return qla2x00_post_work(vha, e);
 }
 
@@ -3097,9 +3096,7 @@ int qla24xx_async_gpsc(scsi_qla_host_t *vha, fc_port_t *fcport)
 
 done_free_sp:
 	sp->free(sp);
-	fcport->flags &= ~FCF_ASYNC_SENT;
 done:
-	fcport->flags &= ~FCF_ASYNC_ACTIVE;
 	return rval;
 }
 
@@ -4290,7 +4287,7 @@ int qla24xx_async_gnnid(scsi_qla_host_t *vha, fc_port_t *fcport)
 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
 		return rval;
 
-	fcport->disc_state = DSC_GNN_ID;
+	qla2x00_set_fcport_disc_state(fcport, DSC_GNN_ID);
 	sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
 	if (!sp)
 		goto done;
@@ -4464,7 +4461,6 @@ int qla24xx_async_gfpnid(scsi_qla_host_t *vha, fc_port_t *fcport)
 
 done_free_sp:
 	sp->free(sp);
-	fcport->flags &= ~FCF_ASYNC_SENT;
 done:
 	return rval;
 }