[PATCH v3 0/4] vhost: add device op to offload the interrupt kick
Eelco Chaudron
echaudro at redhat.com
Fri Jun 2 08:20:46 CEST 2023
On 1 Jun 2023, at 22:00, Maxime Coquelin wrote:
> On 5/17/23 11:08, Eelco Chaudron wrote:
>> This series adds an operation callback which gets called every time the
>> library wants to call eventfd_write(). This eventfd_write() call could
>> result in a system call, which could potentially block the PMD thread.
>>
>> The callback function can decide whether it's ok to handle the
>> eventfd_write() now or have the newly introduced function,
>> rte_vhost_notify_guest(), called at a later time.
>>
>> This can be used by 3rd party applications, like OVS, to avoid system
>> calls being called as part of the PMD threads.
>>
>> v3:
>> - Changed ABI compatibility code to no longer use a boolean
>> to avoid having to disable specific GCC warnings.
>> - Moved the fd check fix to a separate patch (patch 3/4).
>> - Fixed some coding style issues.
>>
>> v2: - Used vhost_virtqueue->index to find index for operation.
>> - Aligned function name to VDUSE RFC patchset.
>> - Added error and offload statistics counter.
>> - Mark new API as experimental.
>> - Change the virtual queue spin lock to read/write spin lock.
>> - Made shared counters atomic.
>> - Add versioned rte_vhost_driver_callback_register() for
>> ABI compliance.
>>
>> Eelco Chaudron (4):
>> vhost: change vhost_virtqueue access lock to a read/write one
>> vhost: make the guest_notifications statistic counter atomic
>> vhost: fix invalid call FD handling
>> vhost: add device op to offload the interrupt kick
>>
>>
>> lib/eal/include/generic/rte_rwlock.h | 17 +++++
>> lib/vhost/meson.build | 2 +
>> lib/vhost/rte_vhost.h | 23 ++++++-
>> lib/vhost/socket.c | 63 +++++++++++++++++--
>> lib/vhost/version.map | 9 +++
>> lib/vhost/vhost.c | 92 +++++++++++++++++++++-------
>> lib/vhost/vhost.h | 69 ++++++++++++++-------
>> lib/vhost/vhost_user.c | 14 ++---
>> lib/vhost/virtio_net.c | 90 +++++++++++++--------------
>> 9 files changed, 278 insertions(+), 101 deletions(-)
>>
>
>
> Applied to dpdk-next-virtio/main.
Thanks Maxime!
//Eelco
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