From: Vikas Gupta <vikas.gupta@broadcom.com>
To: eric.auger@redhat.com, alex.williamson@redhat.com,
cohuck@redhat.com, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: vikram.prakash@broadcom.com, srinath.mannam@broadcom.com,
Vikas Gupta <vikas.gupta@broadcom.com>
Subject: [RFC, v1 0/3] msi support for platform devices
Date: Thu, 12 Nov 2020 23:28:49 +0530 [thread overview]
Message-ID: <20201112175852.21572-1-vikas.gupta@broadcom.com> (raw)
In-Reply-To: <20201105060257.35269-1-vikas.gupta@broadcom.com>
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This RFC adds support for MSI for platform devices.
a) MSI(s) is/are added in addition to the normal interrupts.
b) The vendor specific MSI configuration can be done using
callbacks which is implemented as msi module.
c) Adds a msi handling module for the Broadcom platform devices.
Changes from:
-------------
v0 to v1:
i) Removed MSI device flag VFIO_DEVICE_FLAGS_MSI.
ii) Add MSI(s) at the end of the irq list of platform IRQs.
MSI(s) with first entry of MSI block has count and flag
information.
IRQ list: Allocation for IRQs + MSIs are allocated as below
Example: if there are 'n' IRQs and 'k' MSIs
-------------------------------------------------------
|IRQ-0|IRQ-1|....|IRQ-n|MSI-0|MSI-1|MSI-2|......|MSI-k|
-------------------------------------------------------
MSI-0 will have count=k set and flags set accordingly.
Vikas Gupta (3):
vfio/platform: add support for msi
vfio/platform: change cleanup order
vfio/platform: add Broadcom msi module
drivers/vfio/platform/Kconfig | 1 +
drivers/vfio/platform/Makefile | 1 +
drivers/vfio/platform/msi/Kconfig | 9 +
drivers/vfio/platform/msi/Makefile | 2 +
.../vfio/platform/msi/vfio_platform_bcmplt.c | 74 ++++++
drivers/vfio/platform/vfio_platform_common.c | 86 ++++++-
drivers/vfio/platform/vfio_platform_irq.c | 238 +++++++++++++++++-
drivers/vfio/platform/vfio_platform_private.h | 23 ++
8 files changed, 419 insertions(+), 15 deletions(-)
create mode 100644 drivers/vfio/platform/msi/Kconfig
create mode 100644 drivers/vfio/platform/msi/Makefile
create mode 100644 drivers/vfio/platform/msi/vfio_platform_bcmplt.c
--
2.17.1
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next prev parent reply other threads:[~2020-11-12 17:59 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-05 6:02 [RFC, v0 0/3] msi support for platform devices Vikas Gupta
2020-11-05 6:02 ` [RFC, v0 1/3] vfio/platform: add support for msi Vikas Gupta
2020-11-05 7:08 ` Alex Williamson
2020-11-06 2:54 ` Vikas Gupta
2020-11-06 3:12 ` Alex Williamson
2020-11-09 6:41 ` Vikas Gupta
2020-11-09 15:18 ` Auger Eric
2020-11-09 15:28 ` Alex Williamson
2020-11-10 11:06 ` Vikas Gupta
2020-11-09 15:05 ` Auger Eric
2020-11-10 11:01 ` Vikas Gupta
2020-11-05 6:02 ` [RFC, v0 2/3] vfio/platform: change cleanup order Vikas Gupta
2020-11-05 6:02 ` [RFC, v0 3/3] vfio/platform: add Broadcom msi module Vikas Gupta
2020-11-12 17:58 ` Vikas Gupta [this message]
2020-11-12 17:58 ` [RFC v1 1/3] vfio/platform: add support for msi Vikas Gupta
2020-11-12 17:58 ` [RFC v1 2/3] vfio/platform: change cleanup order Vikas Gupta
2020-11-12 17:58 ` [RFC v1 3/3] vfio/platform: add Broadcom msi module Vikas Gupta
2020-11-12 18:40 ` [RFC, v1 0/3] msi support for platform devices Auger Eric
2020-11-13 17:24 ` Vikas Gupta
2020-11-16 13:14 ` Auger Eric
2020-11-17 6:25 ` Vikas Gupta
2020-11-17 8:05 ` Auger Eric
2020-11-17 8:25 ` Auger Eric
2020-11-17 16:36 ` Vikas Gupta
2020-11-18 11:00 ` Auger Eric
2020-11-24 16:16 ` [RFC, v2 0/1] " Vikas Gupta
2020-11-24 16:16 ` [RFC v2 1/1] vfio/platform: add support for msi Vikas Gupta
2020-12-02 14:44 ` Auger Eric
2020-12-03 14:50 ` Vikas Gupta
2020-12-07 20:43 ` Auger Eric
2020-12-10 7:34 ` Vikas Gupta
2020-12-11 8:40 ` Auger Eric
2020-12-02 14:43 ` [RFC, v2 0/1] msi support for platform devices Auger Eric
2020-12-03 14:39 ` Vikas Gupta
2020-12-14 17:45 ` [RFC, v3 0/2] " Vikas Gupta
2020-12-14 17:45 ` [RFC v3 1/2] vfio/platform: add support for msi Vikas Gupta
2020-12-22 17:27 ` Auger Eric
2021-01-05 5:53 ` Vikas Gupta
2021-01-12 9:00 ` Auger Eric
2021-01-15 6:26 ` Vikas Gupta
2021-01-15 9:25 ` Auger Eric
2020-12-27 8:44 ` kernel test robot
2020-12-14 17:45 ` [RFC v3 2/2] vfio/platform: msi: add Broadcom platform devices Vikas Gupta
2021-01-12 9:22 ` Auger Eric
2021-01-15 6:35 ` Vikas Gupta
2021-01-15 9:24 ` Auger Eric
2021-01-19 22:45 ` Alex Williamson
2021-01-20 10:22 ` Auger Eric
2021-01-29 17:24 ` [RFC v4 0/3] msi support for " Vikas Gupta
2021-01-29 17:24 ` [RFC v4 1/3] vfio/platform: add support for msi Vikas Gupta
2021-02-08 13:30 ` Auger Eric
2021-01-29 17:24 ` [RFC v4 2/3] vfio/platform: change cleanup order Vikas Gupta
2021-02-08 13:31 ` Auger Eric
2021-01-29 17:24 ` [RFC v4 3/3] vfio: platform: reset: add msi support Vikas Gupta
2021-02-08 15:27 ` Auger Eric
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