/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (C) 2021-2025, Intel Corporation. */ #ifndef _IIDC_RDMA_H_ #define _IIDC_RDMA_H_ #include <linux/auxiliary_bus.h> #include <linux/device.h> #include <linux/if_ether.h> #include <linux/kernel.h> #include <linux/netdevice.h> #include <net/dscp.h> enum iidc_rdma_event_type { IIDC_RDMA_EVENT_BEFORE_MTU_CHANGE, IIDC_RDMA_EVENT_AFTER_MTU_CHANGE, IIDC_RDMA_EVENT_BEFORE_TC_CHANGE, IIDC_RDMA_EVENT_AFTER_TC_CHANGE, IIDC_RDMA_EVENT_WARN_RESET, IIDC_RDMA_EVENT_CRIT_ERR, IIDC_RDMA_EVENT_NBITS /* must be last */ }; struct iidc_rdma_event { DECLARE_BITMAP(type, IIDC_RDMA_EVENT_NBITS); u32 reg; }; enum iidc_rdma_reset_type { IIDC_FUNC_RESET, IIDC_DEV_RESET, }; enum iidc_rdma_protocol { IIDC_RDMA_PROTOCOL_IWARP = BIT(0), IIDC_RDMA_PROTOCOL_ROCEV2 = BIT(1), }; /* Structure to be populated by core LAN PCI driver */ struct iidc_rdma_core_dev_info { struct pci_dev *pdev; /* PCI device of corresponding to main function */ struct auxiliary_device *adev; /* Current active RDMA protocol */ enum iidc_rdma_protocol rdma_protocol; void *iidc_priv; /* elements unique to each driver */ }; /* Structure representing auxiliary driver tailored information about the core * PCI dev, each auxiliary driver using the IIDC interface will have an * instance of this struct dedicated to it. */ struct iidc_rdma_core_auxiliary_dev { struct auxiliary_device adev; struct iidc_rdma_core_dev_info *cdev_info; }; /* structure representing the auxiliary driver. This struct is to be * allocated and populated by the auxiliary driver's owner. The core PCI * driver will access these ops by performing a container_of on the * auxiliary_device->dev.driver. */ struct iidc_rdma_core_auxiliary_drv { struct auxiliary_driver adrv; void (*event_handler)(struct iidc_rdma_core_dev_info *cdev, struct iidc_rdma_event *event); }; #endif /* _IIDC_RDMA_H_*/