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[ Upstream commitfec7352117] Currently, the PF check the VF alive by the KEEP_ALVE mailbox from VF. VF keep sending the mailbox per 2 seconds. Once PF lost the mailbox for more than 8 seconds, it will regards the VF is abnormal, and stop notifying the state change to VF, include link state, vf mac, reset, even though it receives the KEEP_ALIVE mailbox again. It's inreasonable. This patch fixes it. PF will record the state change which need to notify VF when lost the VF's KEEP_ALIVE mailbox. And notify VF when receive the mailbox again. Introduce a new flag HCLGE_VPORT_STATE_INITED, used to distinguish the case whether VF driver loaded or not. For VF will query these states when initializing, so it's unnecessary to notify it in this case. Fixes:aa5c4f175b("net: hns3: add reset handling for VF when doing PF reset") Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Hao Lan <lanhao@huawei.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.