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 enum 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 8 35 36 /* Struct to hold per RDMA Qset info */ 37 struct iidc_rdma_qset_params { 38 /* Qset TEID returned to the RDMA driver in 39 * ice_add_rdma_qset and used by RDMA driver 40 * for calls to ice_del_rdma_qset 41 */ 42 u32 teid; /* Qset TEID */ 43 u16 qs_handle; /* RDMA driver provides this */ 44 u16 vport_id; /* VSI index */ 45 u8 tc; /* TC branch the Qset should belong to */ 46 }; 47 48 struct iidc_qos_info { 49 u64 tc_ctx; 50 u8 rel_bw; 51 u8 prio_type; 52 u8 egress_virt_up; 53 u8 ingress_virt_up; 54 }; 55 56 /* Struct to pass QoS info */ 57 struct iidc_qos_params { 58 struct iidc_qos_info tc_info[IEEE_8021QAZ_MAX_TCS]; 59 u8 up2tc[IIDC_MAX_USER_PRIORITY]; 60 u8 vport_relative_bw; 61 u8 vport_priority_type; 62 u8 num_tc; 63 }; 64 65 struct iidc_event { 66 DECLARE_BITMAP(type, IIDC_EVENT_NBITS); 67 u32 reg; 68 }; 69 70 struct ice_pf; 71 72 int ice_add_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset); 73 int ice_del_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset); 74 int ice_rdma_request_reset(struct ice_pf *pf, enum iidc_reset_type reset_type); 75 int ice_rdma_update_vsi_filter(struct ice_pf *pf, u16 vsi_id, bool enable); 76 void ice_get_qos_params(struct ice_pf *pf, struct iidc_qos_params *qos); 77 78 /* Structure representing auxiliary driver tailored information about the core 79 * PCI dev, each auxiliary driver using the IIDC interface will have an 80 * instance of this struct dedicated to it. 81 */ 82 83 struct iidc_auxiliary_dev { 84 struct auxiliary_device adev; 85 struct ice_pf *pf; 86 }; 87 88 /* structure representing the auxiliary driver. This struct is to be 89 * allocated and populated by the auxiliary driver's owner. The core PCI 90 * driver will access these ops by performing a container_of on the 91 * auxiliary_device->dev.driver. 92 */ 93 struct iidc_auxiliary_drv { 94 struct auxiliary_driver adrv; 95 /* This event_handler is meant to be a blocking call. For instance, 96 * when a BEFORE_MTU_CHANGE event comes in, the event_handler will not 97 * return until the auxiliary driver is ready for the MTU change to 98 * happen. 99 */ 100 void (*event_handler)(struct ice_pf *pf, struct iidc_event *event); 101 }; 102 103 #endif /* _IIDC_H_*/ 104