usb_disk: Granularize locking.

There is now an "io_lock" which must be held when performing any USB
operations. All ioctls that read basic status, size, icon, etc. information
do not need to acquire it, of course, which should improve userland
lockup occurrences on congested USB disks.

usb_disk: Clean up and consolidate mutex/semaphore creation/destruction.

usb_disk: Use DMAResource for bouncing and support physical I/O requests.

A "bypass" mechanism is left in for when DMAResource would just add
overhead for no reason. All other I/O goes through it and is submitted
to the USB stack as physical addresses.

Tested in QEMU, can still boot from USB on all busses.

Fixes #15569.

Change-Id: I26bfd2208de4ebe1a17170a7034316076927663f
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6480
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

usb_disk: Transition to "new" driver API.

Change-Id: Ia46cb6ddc9f83917a8f797149508d35b770e44f1
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6473
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

add physical_block_size field where applicable

only scsi_disk checks the actual value, other drivers take the logical block size.

This change reports the physical block size from the disk rather than the block
size used by IDE/SATA/SCSI commands. On typical modern SATA disks, the SATA
commands will use 512 byte blocks, but the disk will actually read and write
4K blocks internally. This is only of importance for partition alignment for DriveSetup,
and is independant of file systems or partitioning systems. This could also influence
the recommended block size for some file systems.

Change-Id: Id0f2e22659e89fcef64c1f8d04f81cd68995e01f
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5667
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Adrien Destugues <pulkomandy@pulkomandy.tk>

usb_disk: add support for drives bigger than 2TB

* tested read/write with a NTFS partition at the end of a 5TB USB hard disk.
* fix #14670

Change-Id: Ic005dfb7ef94b50a2d6fc8099ef5c83ec6b4a730
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5397
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

Merge usb_floppy back into usb_disk.

- USB pen drive seems to still work. More extensive testing welcome.
- USB floppies don't work yet, but they don't work anymore with the
current driver, either. I'm still investigating that part.

Fixes #9276

Change-Id: I8aa5ab828ad2ad867d0c187062d6e179372fc2ad
Reviewed-on: https://review.haiku-os.org/747
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

usb_disk: extract specs into a public header.

Implement B_GET_DEVICE_NAME in usb_disk returning SCSI info.

The SCSI inquiry vendor and product information is concatenated into a
single string to form the device name. Multiple spaces are then
collapsed to make the string more readable. The space padding is quite
common as the fields are fixed size in the inquiry block.

Implement support for ATAPI command set devices. It's used by some USB CD drives
and easy to implement since ATAPI basically is SCSI anyway and we don't use many
problematic commands. Only tested for the 0x05 subclass, but 0x02 should work
the same.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36162 a95241bf-73f2-0310-859d-f6bbb57e9c96

If the device tells us that it doesn't support the Test Unit Ready (TUR) command,
don't try to use it for media status polling. In those cases we'll assume a
fixed device with no exchangable medias and therefore always return B_OK.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32731 a95241bf-73f2-0310-859d-f6bbb57e9c96

Do not base the device number on the device count. Fixes bug #4267.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32474 a95241bf-73f2-0310-859d-f6bbb57e9c96

Adding mode sense command to retrieve the write protected status. Doesn't work
yet, so not enabled for now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30082 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Replaced all instances of benaphores in the kernel code by mutexes.
* Removed kernel benaphores.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25690 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implement a downcounter for the synchronize cache command. There are devices
that do not support it (probably because they do not have a cache at all like
in flash media) and this should at least avoid spamming the syslog when this is
the case. It will try 5 times and then disable syncing for that device. Untested
as of yet though.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24803 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Add support for devices with multiple LUNs
* A device now has one or more LUNs which are used for LUN specific functions
* Adapted these LUN specific functions to the new design and also change the
(un-)publishing accordingly
* Handle "no media" cases more correctly
* Output some interesting device infos also with tracing disabled
* Add some more helpful debug output here and there

Devices that provide multiple logical units (like those n in 1 card readers)
should now be usable with usb_disk too. Also we don't fail when a device is
attached which currently does not contain a media. Instead handle media changes
correctly so inserting a media works as expected. Note that hot-unplugging and
media removal still does not quite work right at the devfs or disk device
manager level and easily crashes the system.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24799 a95241bf-73f2-0310-859d-f6bbb57e9c96

Introduce a simple usb_disk driver that supports USB mass storage devices of
the bulk-only class using transparent SCSI commands (i.e. most of the current
external harddrives and flash media). It emulates the few SCSI commands needed
to get this sort of devices working and does not interface with the SCSI
subsystem. This makes it far easier to get working and also far better fits
how the USB stack works (as drivers can be dynamically rescanned when device
changes occur). This will allow for easy dynamic un- and replugging at runtime.
Note that while the device is currently published when you plug something in at
runtime, the partitions are not scanned and published automatically. It works
however if you have the device plugged in at boot.
I haven't added this driver to the image yet, but if properly installed and
with boot module links to the driver and USB stack, it allows to boot Haiku
from USB media like memory sticks or external harddrives.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24713 a95241bf-73f2-0310-859d-f6bbb57e9c96

usb_disk: extract specs into a public header.

Implement B_GET_DEVICE_NAME in usb_disk returning SCSI info.

The SCSI inquiry vendor and product information is concatenated into a
single string to form the device name. Multiple spaces are then
collapsed to make the string more readable. The space padding is quite
common as the fields are fixed size in the inquiry block.

Implement support for ATAPI command set devices. It's used by some USB CD drives
and easy to implement since ATAPI basically is SCSI anyway and we don't use many
problematic commands. Only tested for the 0x05 subclass, but 0x02 should work
the same.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36162 a95241bf-73f2-0310-859d-f6bbb57e9c96

If the device tells us that it doesn't support the Test Unit Ready (TUR) command,
don't try to use it for media status polling. In those cases we'll assume a
fixed device with no exchangable medias and therefore always return B_OK.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32731 a95241bf-73f2-0310-859d-f6bbb57e9c96

Do not base the device number on the device count. Fixes bug #4267.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32474 a95241bf-73f2-0310-859d-f6bbb57e9c96

Adding mode sense command to retrieve the write protected status. Doesn't work
yet, so not enabled for now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30082 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Replaced all instances of benaphores in the kernel code by mutexes.
* Removed kernel benaphores.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25690 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implement a downcounter for the synchronize cache command. There are devices
that do not support it (probably because they do not have a cache at all like
in flash media) and this should at least avoid spamming the syslog when this is
the case. It will try 5 times and then disable syncing for that device. Untested
as of yet though.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24803 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Add support for devices with multiple LUNs
* A device now has one or more LUNs which are used for LUN specific functions
* Adapted these LUN specific functions to the new design and also change the
(un-)publishing accordingly
* Handle "no media" cases more correctly
* Output some interesting device infos also with tracing disabled
* Add some more helpful debug output here and there

Devices that provide multiple logical units (like those n in 1 card readers)
should now be usable with usb_disk too. Also we don't fail when a device is
attached which currently does not contain a media. Instead handle media changes
correctly so inserting a media works as expected. Note that hot-unplugging and
media removal still does not quite work right at the devfs or disk device
manager level and easily crashes the system.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24799 a95241bf-73f2-0310-859d-f6bbb57e9c96

Introduce a simple usb_disk driver that supports USB mass storage devices of
the bulk-only class using transparent SCSI commands (i.e. most of the current
external harddrives and flash media). It emulates the few SCSI commands needed
to get this sort of devices working and does not interface with the SCSI
subsystem. This makes it far easier to get working and also far better fits
how the USB stack works (as drivers can be dynamically rescanned when device
changes occur). This will allow for easy dynamic un- and replugging at runtime.
Note that while the device is currently published when you plug something in at
runtime, the partitions are not scanned and published automatically. It works
however if you have the device plugged in at boot.
I haven't added this driver to the image yet, but if properly installed and
with boot module links to the driver and USB stack, it allows to boot Haiku
from USB media like memory sticks or external harddrives.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24713 a95241bf-73f2-0310-859d-f6bbb57e9c96