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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
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_*/
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