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 | |
82 | /* Structure representing auxiliary driver tailored information about the core |
83 | * PCI dev, each auxiliary driver using the IIDC interface will have an |
84 | * instance of this struct dedicated to it. |
85 | */ |
86 | |
87 | struct 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 be |
93 | * allocated and populated by the auxiliary driver's owner. The core PCI |
94 | * driver will access these ops by performing a container_of on the |
95 | * auxiliary_device->dev.driver. |
96 | */ |
97 | struct 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 not |
101 | * return until the auxiliary driver is ready for the MTU change to |
102 | * happen. |
103 | */ |
104 | void (*event_handler)(struct ice_pf *pf, struct iidc_event *event); |
105 | }; |
106 | |
107 | #endif /* _IIDC_H_*/ |
108 | |