e0ec62d6e9
VF's command receive queue was mainly used to receive mailbox messages
from PF. There are two type mailbox messages: request response message
and message pushed by PF.
There are two types of threads that can handle these messages:
1) the interrupt thread of the main process: it could handle both types
of messages.
2) other threads: it could only handle request response messages.
The collaboration mechanism between the two type threads is that other
threads set the opcode of processed messages to zero so that the
interrupt thread of the main process does not process these messages
again. Because other threads can only process part of the messages,
after the processing is complete, the next-to-use pointer of the
command receive queue should not be updated. Otherwise, some messages
(e.g. messages pushed by PF) maybe discarded.
Unfortunately, the patch to be reverted updates next-to-use pointer of
the command receive queue in other threads context, and this will lead
to discard some mailbox message.
So this commit reverts
commit 599ef84add7e ("net/hns3: fix mailbox communication with HW")
Fixes: 599ef84add7e ("net/hns3: fix mailbox communication with HW")
Cc: stable@dpdk.org
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD-3-Clause license for the core libraries and drivers. The kernel components are GPL-2.0 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org