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* [PATCH 0/2] Simplify mtty driver and mdev core
@ 2019-08-02  6:59 Parav Pandit
  2019-08-02  6:59 ` [PATCH 1/2] vfio-mdev/mtty: Simplify interrupt generation Parav Pandit
                   ` (3 more replies)
  0 siblings, 4 replies; 74+ messages in thread
From: Parav Pandit @ 2019-08-02  6:59 UTC (permalink / raw)
  To: kvm, wankhede, linux-kernel; +Cc: parav, alex.williamson, cohuck, cjia

Currently mtty sample driver uses mdev state and UUID in convoluated way to
generate an interrupt.
It uses several translations from mdev_state to mdev_device to mdev uuid.
After which it does linear search of long uuid comparision to
find out mdev_state in mtty_trigger_interrupt().
mdev_state is already available while generating interrupt from which all
such translations are done to reach back to mdev_state.

This translations are done during interrupt generation path.
This is unnecessary and reduandant.

Hence,
Patch-1 simplifies mtty sample driver to directly use mdev_state.

Patch-2, Since no production driver uses mdev_uuid(), and mdev's name
is already available using core kernel dev_name(), simplifies and removes
redandant mdev_uuid() exported symbol.

Parav Pandit (2):
  vfio-mdev/mtty: Simplify interrupt generation
  vfio/mdev: Removed unused and redundant API for mdev name

 drivers/vfio/mdev/mdev_core.c |  6 ------
 include/linux/mdev.h          |  1 -
 samples/vfio-mdev/mtty.c      | 39 +++++++----------------------------
 3 files changed, 8 insertions(+), 38 deletions(-)

-- 
2.21.0.777.g83232e3864


^ permalink raw reply	[flat|nested] 74+ messages in thread

end of thread, other threads:[~2019-08-24  5:22 UTC | newest]

Thread overview: 74+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-08-02  6:59 [PATCH 0/2] Simplify mtty driver and mdev core Parav Pandit
2019-08-02  6:59 ` [PATCH 1/2] vfio-mdev/mtty: Simplify interrupt generation Parav Pandit
2019-08-06  8:15   ` Cornelia Huck
2019-08-02  6:59 ` [PATCH 2/2] vfio/mdev: Removed unused and redundant API for mdev name Parav Pandit
2019-08-06  8:29   ` Cornelia Huck
2019-08-06 13:12     ` Parav Pandit
2019-08-06 14:18 ` [PATCH v1 0/2] Simplify mtty driver and mdev core Parav Pandit
2019-08-06 14:18   ` [PATCH v1 1/2] vfio-mdev/mtty: Simplify interrupt generation Parav Pandit
2019-08-06 14:18   ` [PATCH v1 2/2] vfio/mdev: Removed unused and redundant API for mdev UUID Parav Pandit
2019-08-07  9:28     ` Cornelia Huck
2019-08-07 16:33       ` Parav Pandit
2019-08-08  8:29         ` Cornelia Huck
2019-08-08 14:01           ` Parav Pandit
2019-08-08 14:12 ` [PATCH v2 0/2] Simplify mtty driver and mdev core Parav Pandit
2019-08-08 14:12   ` [PATCH v2 1/2] vfio-mdev/mtty: Simplify interrupt generation Parav Pandit
2019-08-13 16:39     ` Christoph Hellwig
2019-08-23 20:48     ` Alex Williamson
2019-08-08 14:12   ` [PATCH v2 2/2] vfio/mdev: Removed unused and redundant API for mdev UUID Parav Pandit
2019-08-13 16:39     ` Christoph Hellwig
2019-08-16 15:22     ` Cornelia Huck
2019-08-08 23:02   ` [PATCH v2 0/2] Simplify mtty driver and mdev core Alex Williamson
2019-08-09  8:07     ` Cornelia Huck
2019-08-12 11:35     ` Kirti Wankhede
2019-08-13 14:40       ` Parav Pandit
2019-08-13 14:52         ` Alex Williamson
2019-08-13 16:28           ` Parav Pandit
2019-08-13 16:34             ` Cornelia Huck
2019-08-13 17:11             ` Alex Williamson
2019-08-14  5:54               ` Parav Pandit
2019-08-14  8:01                 ` Cornelia Huck
2019-08-14 12:27                   ` Parav Pandit
2019-08-14 13:09                     ` Cornelia Huck
2019-08-14 13:45                       ` Parav Pandit
2019-08-14 14:57                         ` Alex Williamson
2019-08-14 16:21                           ` Parav Pandit
2019-08-20  8:58                             ` Parav Pandit
2019-08-20  9:58                               ` Christophe de Dinechin
2019-08-20 11:25                                 ` Parav Pandit
2019-08-20 16:31                                   ` Cornelia Huck
2019-08-21  2:42                                     ` Parav Pandit
2019-08-20 17:19                               ` Alex Williamson
2019-08-20 17:55                                 ` Cornelia Huck
2019-08-21  3:57                                   ` Parav Pandit
2019-08-21  3:42                                 ` Parav Pandit
2019-08-21  4:20                                   ` Alex Williamson
2019-08-21  4:40                                     ` Parav Pandit
2019-08-21  4:57                                       ` Alex Williamson
2019-08-21  5:01                                         ` Parav Pandit
2019-08-21  5:26                                           ` Alex Williamson
2019-08-21  6:23                                             ` Parav Pandit
2019-08-22  9:29                                               ` Jiri Pirko
2019-08-22  9:42                                                 ` Parav Pandit
2019-08-22  9:58                                                   ` Jiri Pirko
2019-08-22 10:04                                                     ` Parav Pandit
2019-08-22 12:19                                                       ` Jiri Pirko
2019-08-22 13:33                                                         ` Parav Pandit
2019-08-23  8:12                                                           ` Jiri Pirko
2019-08-23  8:14                                                             ` Parav Pandit
2019-08-23 14:28                                                               ` Alex Williamson
2019-08-23 14:53                                                                 ` Parav Pandit
2019-08-23 15:04                                                                   ` Jiri Pirko
2019-08-23 15:52                                                                   ` Alex Williamson
2019-08-23 16:14                                                                     ` Parav Pandit
2019-08-23 17:16                                                                       ` Alex Williamson
2019-08-23 18:00                                                                         ` Parav Pandit
2019-08-23 19:43                                                                           ` Alex Williamson
2019-08-24  3:56                                                                             ` Parav Pandit
2019-08-24  4:45                                                                               ` Parav Pandit
2019-08-24  4:59                                                                               ` Alex Williamson
2019-08-24  5:22                                                                                 ` Parav Pandit
2019-08-13 16:37         ` Christoph Hellwig
2019-08-13 17:40           ` Greg Kroah-Hartman
2019-08-14  5:30             ` Parav Pandit
2019-08-13 14:48     ` Parav Pandit

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