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1/* SPDX-License-Identifier: GPL-2.0 */2/* Copyright (C) 2021, Intel Corporation. */3 4#ifndef _IIDC_H_5#define _IIDC_H_6 7#include <linux/auxiliary_bus.h>8#include <linux/dcbnl.h>9#include <linux/device.h>10#include <linux/if_ether.h>11#include <linux/kernel.h>12#include <linux/netdevice.h>13 14enum iidc_event_type {15 IIDC_EVENT_BEFORE_MTU_CHANGE,16 IIDC_EVENT_AFTER_MTU_CHANGE,17 IIDC_EVENT_BEFORE_TC_CHANGE,18 IIDC_EVENT_AFTER_TC_CHANGE,19 IIDC_EVENT_CRIT_ERR,20 IIDC_EVENT_NBITS /* must be last */21};22 23enum iidc_reset_type {24 IIDC_PFR,25 IIDC_CORER,26 IIDC_GLOBR,27};28 29enum iidc_rdma_protocol {30 IIDC_RDMA_PROTOCOL_IWARP = BIT(0),31 IIDC_RDMA_PROTOCOL_ROCEV2 = BIT(1),32};33 34#define IIDC_MAX_USER_PRIORITY 835#define IIDC_MAX_DSCP_MAPPING 6436#define IIDC_DSCP_PFC_MODE 0x137 38/* Struct to hold per RDMA Qset info */39struct iidc_rdma_qset_params {40 /* Qset TEID returned to the RDMA driver in41 * ice_add_rdma_qset and used by RDMA driver42 * for calls to ice_del_rdma_qset43 */44 u32 teid; /* Qset TEID */45 u16 qs_handle; /* RDMA driver provides this */46 u16 vport_id; /* VSI index */47 u8 tc; /* TC branch the Qset should belong to */48};49 50struct iidc_qos_info {51 u64 tc_ctx;52 u8 rel_bw;53 u8 prio_type;54 u8 egress_virt_up;55 u8 ingress_virt_up;56};57 58/* Struct to pass QoS info */59struct iidc_qos_params {60 struct iidc_qos_info tc_info[IEEE_8021QAZ_MAX_TCS];61 u8 up2tc[IIDC_MAX_USER_PRIORITY];62 u8 vport_relative_bw;63 u8 vport_priority_type;64 u8 num_tc;65 u8 pfc_mode;66 u8 dscp_map[IIDC_MAX_DSCP_MAPPING];67};68 69struct iidc_event {70 DECLARE_BITMAP(type, IIDC_EVENT_NBITS);71 u32 reg;72};73 74struct ice_pf;75 76int ice_add_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset);77int ice_del_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset);78int ice_rdma_request_reset(struct ice_pf *pf, enum iidc_reset_type reset_type);79int ice_rdma_update_vsi_filter(struct ice_pf *pf, u16 vsi_id, bool enable);80void ice_get_qos_params(struct ice_pf *pf, struct iidc_qos_params *qos);81 82/* Structure representing auxiliary driver tailored information about the core83 * PCI dev, each auxiliary driver using the IIDC interface will have an84 * instance of this struct dedicated to it.85 */86 87struct iidc_auxiliary_dev {88 struct auxiliary_device adev;89 struct ice_pf *pf;90};91 92/* structure representing the auxiliary driver. This struct is to be93 * allocated and populated by the auxiliary driver's owner. The core PCI94 * driver will access these ops by performing a container_of on the95 * auxiliary_device->dev.driver.96 */97struct iidc_auxiliary_drv {98 struct auxiliary_driver adrv;99 /* This event_handler is meant to be a blocking call. For instance,100 * when a BEFORE_MTU_CHANGE event comes in, the event_handler will not101 * return until the auxiliary driver is ready for the MTU change to102 * happen.103 */104 void (*event_handler)(struct ice_pf *pf, struct iidc_event *event);105};106 107#endif /* _IIDC_H_*/108