accel/habanalabs: add parent_device sysfs attribute

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The device debugfs directory was modified to be named as the
device-name.
This name is the parent device name, i.e. either the PCI address in case
of an ASIC, or the simulator device name in case of a simulator.

This change makes it more difficult for a user to access the debugfs
directory for a specific accel device, because he can't just use the
accel minor id, but he needs to do more device-dependent operations to
get the device name.

To make it easier to get this name, add a 'parent_device' sysfs
attribute that the user can read using the minor id before accessing
debugfs.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

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This commit is contained in:

Tomer Tayar 2023-05-03 13:19:17 +03:00 • committed by Oded Gabbay

parent cf0719a8a3

commit aa5cea38ce

3 changed files with 18 additions and 0 deletions

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6

Documentation/ABI/testing/sysfs-driver-habanalabs

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3

drivers/accel/habanalabs/common/habanalabs.h

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9

drivers/accel/habanalabs/common/sysfs.c

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