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 14 enum 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 23 enum iidc_reset_type { 24 IIDC_PFR, 25 IIDC_CORER, 26 IIDC_GLOBR, 27 }; 28 29 #define IIDC_MAX_USER_PRIORITY 8 30 31 /* Struct to hold per RDMA Qset info */ 32 struct iidc_rdma_qset_params { 33 /* Qset TEID returned to the RDMA driver in 34 * ice_add_rdma_qset and used by RDMA driver 35 * for calls to ice_del_rdma_qset 36 */ 37 u32 teid; /* Qset TEID */ 38 u16 qs_handle; /* RDMA driver provides this */ 39 u16 vport_id; /* VSI index */ 40 u8 tc; /* TC branch the Qset should belong to */ 41 }; 42 43 struct iidc_qos_info { 44 u64 tc_ctx; 45 u8 rel_bw; 46 u8 prio_type; 47 u8 egress_virt_up; 48 u8 ingress_virt_up; 49 }; 50 51 /* Struct to pass QoS info */ 52 struct iidc_qos_params { 53 struct iidc_qos_info tc_info[IEEE_8021QAZ_MAX_TCS]; 54 u8 up2tc[IIDC_MAX_USER_PRIORITY]; 55 u8 vport_relative_bw; 56 u8 vport_priority_type; 57 u8 num_tc; 58 }; 59 60 struct iidc_event { 61 DECLARE_BITMAP(type, IIDC_EVENT_NBITS); 62 u32 reg; 63 }; 64 65 struct ice_pf; 66 67 int ice_add_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset); 68 int ice_del_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset); 69 int ice_rdma_request_reset(struct ice_pf *pf, enum iidc_reset_type reset_type); 70 int ice_rdma_update_vsi_filter(struct ice_pf *pf, u16 vsi_id, bool enable); 71 void ice_get_qos_params(struct ice_pf *pf, struct iidc_qos_params *qos); 72 73 #define IIDC_RDMA_ROCE_NAME "roce" 74 75 /* Structure representing auxiliary driver tailored information about the core 76 * PCI dev, each auxiliary driver using the IIDC interface will have an 77 * instance of this struct dedicated to it. 78 */ 79 80 struct iidc_auxiliary_dev { 81 struct auxiliary_device adev; 82 struct ice_pf *pf; 83 }; 84 85 /* structure representing the auxiliary driver. This struct is to be 86 * allocated and populated by the auxiliary driver's owner. The core PCI 87 * driver will access these ops by performing a container_of on the 88 * auxiliary_device->dev.driver. 89 */ 90 struct iidc_auxiliary_drv { 91 struct auxiliary_driver adrv; 92 /* This event_handler is meant to be a blocking call. For instance, 93 * when a BEFORE_MTU_CHANGE event comes in, the event_handler will not 94 * return until the auxiliary driver is ready for the MTU change to 95 * happen. 96 */ 97 void (*event_handler)(struct ice_pf *pf, struct iidc_event *event); 98 }; 99 100 #endif /* _IIDC_H_*/ 101