Virtualization - Feb 2021 - [PATCH RFC v2 08/10] vdpa: add vdpa simulator for block device

On Sun, Jan 31, 2021 at 05:31:43PM +0200, Max Gurtovoy
wrote:
>
>On 1/28/2021 4:41 PM, Stefano Garzarella wrote:
>>From: Max Gurtovoy <mgurtovoy at nvidia.com>
>>
>>This will allow running vDPA for virtio block protocol.
>>
>>Signed-off-by: Max Gurtovoy <mgurtovoy at nvidia.com>
>>[sgarzare: various cleanups/fixes]
>>Signed-off-by: Stefano Garzarella <sgarzare at redhat.com>
>>---
>>v2:
>>- rebased on top of other changes (dev_attr, get_config(), notify(),
etc.)
>>- memset to 0 the config structure in vdpasim_blk_get_config()
>>- used vdpasim pointer in vdpasim_blk_get_config()
>>
>>v1:
>>- Removed unused headers
>>- Used cpu_to_vdpasim*() to store config fields
>>- Replaced 'select VDPA_SIM' with 'depends on VDPA_SIM'
since selected
>>   option can not depend on other [Jason]
>>- Start with a single queue for now [Jason]
>>- Add comments to memory barriers
>>---
>>  drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | 145 +++++++++++++++++++++++++++
>>  drivers/vdpa/Kconfig                 |   7 ++
>>  drivers/vdpa/vdpa_sim/Makefile       |   1 +
>>  3 files changed, 153 insertions(+)
>>  create mode 100644 drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
>>
>>diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
>>new file mode 100644
>>index 000000000000..999f9ca0b628
>>--- /dev/null
>>+++ b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
>>@@ -0,0 +1,145 @@
>>+// SPDX-License-Identifier: GPL-2.0-only
>>+/*
>>+ * VDPA simulator for block device.
>>+ *
>>+ * Copyright (c) 2020, Mellanox Technologies. All rights reserved.
>
>I guess we can change the copyright from Mellanox to:
>
>Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
I'll update in the next version.

Thanks,
Stefano