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 #define IIDC_MAX_DSCP_MAPPING 64 36 #define IIDC_DSCP_PFC_MODE 0x1 37 38 /* Struct to hold per RDMA Qset info */ 39 struct iidc_rdma_qset_params { 40 /* Qset TEID returned to the RDMA driver in 41 * ice_add_rdma_qset and used by RDMA driver 42 * for calls to ice_del_rdma_qset 43 */ 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 50 struct 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 */ 59 struct 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 69 struct iidc_event { 70 DECLARE_BITMAP(type, IIDC_EVENT_NBITS); 71 u32 reg; 72 }; 73 74 struct ice_pf; 75 76 int ice_add_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset); 77 int ice_del_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset); 78 int ice_rdma_request_reset(struct ice_pf *pf, enum iidc_reset_type reset_type); 79 int ice_rdma_update_vsi_filter(struct ice_pf *pf, u16 vsi_id, bool enable); 80 void ice_get_qos_params(struct ice_pf *pf, struct iidc_qos_params *qos); 81 int ice_alloc_rdma_qvector(struct ice_pf *pf, struct msix_entry *entry); 82 void ice_free_rdma_qvector(struct ice_pf *pf, struct msix_entry *entry); 83 84 /* Structure representing auxiliary driver tailored information about the core 85 * PCI dev, each auxiliary driver using the IIDC interface will have an 86 * instance of this struct dedicated to it. 87 */ 88 89 struct iidc_auxiliary_dev { 90 struct auxiliary_device adev; 91 struct ice_pf *pf; 92 }; 93 94 /* structure representing the auxiliary driver. This struct is to be 95 * allocated and populated by the auxiliary driver's owner. The core PCI 96 * driver will access these ops by performing a container_of on the 97 * auxiliary_device->dev.driver. 98 */ 99 struct iidc_auxiliary_drv { 100 struct auxiliary_driver adrv; 101 /* This event_handler is meant to be a blocking call. For instance, 102 * when a BEFORE_MTU_CHANGE event comes in, the event_handler will not 103 * return until the auxiliary driver is ready for the MTU change to 104 * happen. 105 */ 106 void (*event_handler)(struct ice_pf *pf, struct iidc_event *event); 107 }; 108 109 #endif /* _IIDC_H_*/ 110