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To implement the system suspend/resume functions, the NIC driver needs to support: 1. When the system enters the suspend mode, the driver needs to implement the suspend callback function of the NIC device. The driver needs to mute the device, stop all RX/TX activities of the device, and unmap the interrupt. 2. When the system enters the resume mode, the driver needs to implement the resume callback function of the NIC device and restore the device to the state before suspension. When the system enters the suspend and resume mode, the NIC driver actually executes the PF function reset process. When the PFs are suspending/resuming, VFs also enter the suspend/resume state because the PFs trigger the VFs to reset, therefore no operation is required when the VF pci_driver is suspending or resuming. Signed-off-by: Jiaran Zhang <zhangjiaran@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.