From: Diana Craciun <diana.craciun@oss.nxp.com>
To: alex.williamson@redhat.com, kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, bharatb.linux@gmail.com,
laurentiu.tudor@nxp.com,
Diana Craciun <diana.craciun@oss.nxp.com>
Subject: [PATCH v4 10/10] vfio/fsl-mc: Add support for device reset
Date: Wed, 26 Aug 2020 12:33:15 +0300 [thread overview]
Message-ID: <20200826093315.5279-11-diana.craciun@oss.nxp.com> (raw)
In-Reply-To: <20200826093315.5279-1-diana.craciun@oss.nxp.com>
Currently only resetting the DPRC container is supported which
will reset all the objects inside it. Resetting individual
objects is possible from the userspace by issueing commands
towards MC firmware.
Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com>
---
drivers/vfio/fsl-mc/vfio_fsl_mc.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc.c b/drivers/vfio/fsl-mc/vfio_fsl_mc.c
index 27713aa86878..d17c5b3148ad 100644
--- a/drivers/vfio/fsl-mc/vfio_fsl_mc.c
+++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c
@@ -310,7 +310,20 @@ static long vfio_fsl_mc_ioctl(void *device_data, unsigned int cmd,
}
case VFIO_DEVICE_RESET:
{
- return -ENOTTY;
+ int ret = 0;
+
+ struct fsl_mc_device *mc_dev = vdev->mc_dev;
+
+ /* reset is supported only for the DPRC */
+ if (!is_fsl_mc_bus_dprc(mc_dev))
+ return -ENOTTY;
+
+ ret = dprc_reset_container(mc_dev->mc_io, 0,
+ mc_dev->mc_handle,
+ mc_dev->obj_desc.id,
+ DPRC_RESET_OPTION_NON_RECURSIVE);
+ return ret;
+
}
default:
return -ENOTTY;
--
2.17.1
next prev parent reply other threads:[~2020-08-26 9:34 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-26 9:33 [PATCH v4 00/10] vfio/fsl-mc: VFIO support for FSL-MC device Diana Craciun
2020-08-26 9:33 ` [PATCH v4 01/10] vfio/fsl-mc: Add VFIO framework skeleton for fsl-mc devices Diana Craciun
2020-09-03 14:06 ` Auger Eric
2020-09-04 13:59 ` Diana Craciun OSS
2020-09-04 14:11 ` Auger Eric
2020-08-26 9:33 ` [PATCH v4 02/10] vfio/fsl-mc: Scan DPRC objects on vfio-fsl-mc driver bind Diana Craciun
2020-09-03 14:06 ` Auger Eric
2020-09-07 14:38 ` Diana Craciun OSS
2020-08-26 9:33 ` [PATCH v4 03/10] vfio/fsl-mc: Implement VFIO_DEVICE_GET_INFO ioctl Diana Craciun
2020-09-03 14:13 ` Auger Eric
2020-08-26 9:33 ` [PATCH v4 04/10] vfio/fsl-mc: Implement VFIO_DEVICE_GET_REGION_INFO ioctl call Diana Craciun
2020-09-03 15:16 ` Auger Eric
2020-09-03 15:22 ` Auger Eric
2020-08-26 9:33 ` [PATCH v4 05/10] vfio/fsl-mc: Allow userspace to MMAP fsl-mc device MMIO regions Diana Craciun
2020-09-03 16:05 ` Auger Eric
2020-09-07 12:49 ` Diana Craciun OSS
2020-08-26 9:33 ` [PATCH v4 06/10] vfio/fsl-mc: Added lock support in preparation for interrupt handling Diana Craciun
2020-09-03 19:55 ` Auger Eric
2020-08-26 9:33 ` [PATCH v4 07/10] vfio/fsl-mc: Add irq infrastructure for fsl-mc devices Diana Craciun
2020-09-03 20:15 ` Auger Eric
2020-09-07 13:09 ` Diana Craciun OSS
2020-08-26 9:33 ` [PATCH v4 08/10] vfio/fsl-mc: trigger an interrupt via eventfd Diana Craciun
2020-09-04 8:02 ` Auger Eric
2020-09-07 14:02 ` Diana Craciun OSS
2020-09-10 8:16 ` Auger Eric
2020-08-26 9:33 ` [PATCH v4 09/10] vfio/fsl-mc: Add read/write support for fsl-mc devices Diana Craciun
2020-09-04 8:18 ` Auger Eric
2020-09-07 14:34 ` Diana Craciun OSS
2020-09-10 8:20 ` Auger Eric
2020-09-11 9:15 ` Diana Craciun OSS
2020-08-26 9:33 ` Diana Craciun [this message]
2020-09-04 8:21 ` [PATCH v4 10/10] vfio/fsl-mc: Add support for device reset Auger Eric
2020-09-07 14:36 ` Diana Craciun OSS
2020-09-10 8:21 ` Auger Eric
2020-09-03 13:40 ` [PATCH v4 00/10] vfio/fsl-mc: VFIO support for FSL-MC device Auger Eric
2020-09-04 8:03 ` Diana Craciun OSS
2020-09-04 8:25 ` Auger Eric
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