1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
2 /* QLogic qed NIC Driver
3  * Copyright (c) 2015-2017  QLogic Corporation
4  * Copyright (c) 2019-2020 Marvell International Ltd.
5  */
6 
7 #ifndef _QED_DCBX_H
8 #define _QED_DCBX_H
9 #include <linux/types.h>
10 #include <linux/slab.h>
11 #include "qed.h"
12 #include "qed_hsi.h"
13 #include "qed_hw.h"
14 #include "qed_mcp.h"
15 #include "qed_reg_addr.h"
16 
17 #define DCBX_CONFIG_MAX_APP_PROTOCOL    4
18 
19 enum qed_mib_read_type {
20 	QED_DCBX_OPERATIONAL_MIB,
21 	QED_DCBX_REMOTE_MIB,
22 	QED_DCBX_LOCAL_MIB,
23 	QED_DCBX_REMOTE_LLDP_MIB,
24 	QED_DCBX_LOCAL_LLDP_MIB
25 };
26 
27 struct qed_dcbx_app_data {
28 	bool enable;		/* DCB enabled */
29 	u8 update;		/* Update indication */
30 	u8 priority;		/* Priority */
31 	u8 tc;			/* Traffic Class */
32 	bool dont_add_vlan0;	/* Do not insert a vlan tag with id 0 */
33 };
34 
35 #define QED_DCBX_VERSION_DISABLED       0
36 #define QED_DCBX_VERSION_IEEE           1
37 #define QED_DCBX_VERSION_CEE            2
38 
39 struct qed_dcbx_set {
40 #define QED_DCBX_OVERRIDE_STATE	        BIT(0)
41 #define QED_DCBX_OVERRIDE_PFC_CFG       BIT(1)
42 #define QED_DCBX_OVERRIDE_ETS_CFG       BIT(2)
43 #define QED_DCBX_OVERRIDE_APP_CFG       BIT(3)
44 #define QED_DCBX_OVERRIDE_DSCP_CFG      BIT(4)
45 	u32 override_flags;
46 	bool enabled;
47 	struct qed_dcbx_admin_params config;
48 	u32 ver_num;
49 };
50 
51 struct qed_dcbx_results {
52 	bool dcbx_enabled;
53 	u8 pf_id;
54 	struct qed_dcbx_app_data arr[DCBX_MAX_PROTOCOL_TYPE];
55 };
56 
57 struct qed_dcbx_app_metadata {
58 	enum dcbx_protocol_type id;
59 	char *name;
60 	enum qed_pci_personality personality;
61 };
62 
63 struct qed_dcbx_info {
64 	struct lldp_status_params_s lldp_remote[LLDP_MAX_LLDP_AGENTS];
65 	struct lldp_config_params_s lldp_local[LLDP_MAX_LLDP_AGENTS];
66 	struct dcbx_local_params local_admin;
67 	struct qed_dcbx_results results;
68 	struct dcbx_mib operational;
69 	struct dcbx_mib remote;
70 	struct qed_dcbx_set set;
71 	struct qed_dcbx_get get;
72 	u8 dcbx_cap;
73 };
74 
75 struct qed_dcbx_mib_meta_data {
76 	struct lldp_config_params_s *lldp_local;
77 	struct lldp_status_params_s *lldp_remote;
78 	struct dcbx_local_params *local_admin;
79 	struct dcbx_mib *mib;
80 	size_t size;
81 	u32 addr;
82 };
83 
84 extern const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass;
85 
86 #ifdef CONFIG_DCB
87 int qed_dcbx_get_config_params(struct qed_hwfn *, struct qed_dcbx_set *);
88 
89 int qed_dcbx_config_params(struct qed_hwfn *,
90 			   struct qed_ptt *, struct qed_dcbx_set *, bool);
91 #endif
92 
93 /* QED local interface routines */
94 int
95 qed_dcbx_mib_update_event(struct qed_hwfn *,
96 			  struct qed_ptt *, enum qed_mib_read_type);
97 
98 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn);
99 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn);
100 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
101 				   struct pf_update_ramrod_data *p_dest);
102 
103 #define QED_DCBX_DEFAULT_TC	0
104 
105 u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri);
106 #endif
107