net: hns3: Add HNS3 IMP(Integrated Mgmt Proc) Cmd Interface Support
This patch adds the support of IMP (Integrated Management Processor) command interface to the HNS3 driver. Each PF/VF has support of CQP(Command Queue Pair) ring interface. Each CQP consis of send queue CSQ and receive queue CRQ. There are various commands a PF/VF may support, like for Flow Table manipulation, Device management, Packet buffer allocation, Forwarding, VLANs config, Tunneling/Overlays etc. This patch contains code to initialize the command queue, manage the command queue descriptors and Rx/Tx protocol with the command processor in the form of various commands/results and acknowledgements. Signed-off-by: NDaode Huang <huangdaode@hisilicon.com> Signed-off-by: Nlipeng <lipeng321@huawei.com> Signed-off-by: NSalil Mehta <salil.mehta@huawei.com> Signed-off-by: NYisen Zhuang <yisen.zhuang@huawei.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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