1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
2 /* Copyright (c) 2019-2020 Marvell International Ltd. */
3
4 #ifndef _QED_FCOE_IF_H
5 #define _QED_FCOE_IF_H
6 #include <linux/types.h>
7 #include <linux/qed/qed_if.h>
8 struct qed_fcoe_stats {
9 u64 fcoe_rx_byte_cnt;
10 u64 fcoe_rx_data_pkt_cnt;
11 u64 fcoe_rx_xfer_pkt_cnt;
12 u64 fcoe_rx_other_pkt_cnt;
13 u32 fcoe_silent_drop_pkt_cmdq_full_cnt;
14 u32 fcoe_silent_drop_pkt_rq_full_cnt;
15 u32 fcoe_silent_drop_pkt_crc_error_cnt;
16 u32 fcoe_silent_drop_pkt_task_invalid_cnt;
17 u32 fcoe_silent_drop_total_pkt_cnt;
18
19 u64 fcoe_tx_byte_cnt;
20 u64 fcoe_tx_data_pkt_cnt;
21 u64 fcoe_tx_xfer_pkt_cnt;
22 u64 fcoe_tx_other_pkt_cnt;
23 };
24
25 struct qed_dev_fcoe_info {
26 struct qed_dev_info common;
27
28 void __iomem *primary_dbq_rq_addr;
29 void __iomem *secondary_bdq_rq_addr;
30
31 u64 wwpn;
32 u64 wwnn;
33
34 u8 num_cqs;
35 };
36
37 struct qed_fcoe_params_offload {
38 dma_addr_t sq_pbl_addr;
39 dma_addr_t sq_curr_page_addr;
40 dma_addr_t sq_next_page_addr;
41
42 u8 src_mac[ETH_ALEN];
43 u8 dst_mac[ETH_ALEN];
44
45 u16 tx_max_fc_pay_len;
46 u16 e_d_tov_timer_val;
47 u16 rec_tov_timer_val;
48 u16 rx_max_fc_pay_len;
49 u16 vlan_tag;
50
51 struct fc_addr_nw s_id;
52 u8 max_conc_seqs_c3;
53 struct fc_addr_nw d_id;
54 u8 flags;
55 u8 def_q_idx;
56 };
57
58 #define MAX_TID_BLOCKS_FCOE (512)
59 struct qed_fcoe_tid {
60 u32 size; /* In bytes per task */
61 u32 num_tids_per_block;
62 u8 *blocks[MAX_TID_BLOCKS_FCOE];
63 };
64
65 struct qed_fcoe_cb_ops {
66 struct qed_common_cb_ops common;
67 u32 (*get_login_failures)(void *cookie);
68 };
69
70 /**
71 * struct qed_fcoe_ops - qed FCoE operations.
72 * @common: common operations pointer
73 * @fill_dev_info: fills FCoE specific information
74 * @param cdev
75 * @param info
76 * @return 0 on success, otherwise error value.
77 * @register_ops: register FCoE operations
78 * @param cdev
79 * @param ops - specified using qed_iscsi_cb_ops
80 * @param cookie - driver private
81 * @ll2: light L2 operations pointer
82 * @start: fcoe in FW
83 * @param cdev
84 * @param tasks - qed will fill information about tasks
85 * return 0 on success, otherwise error value.
86 * @stop: stops fcoe in FW
87 * @param cdev
88 * return 0 on success, otherwise error value.
89 * @acquire_conn: acquire a new fcoe connection
90 * @param cdev
91 * @param handle - qed will fill handle that should be
92 * used henceforth as identifier of the
93 * connection.
94 * @param p_doorbell - qed will fill the address of the
95 * doorbell.
96 * return 0 on success, otherwise error value.
97 * @release_conn: release a previously acquired fcoe connection
98 * @param cdev
99 * @param handle - the connection handle.
100 * return 0 on success, otherwise error value.
101 * @offload_conn: configures an offloaded connection
102 * @param cdev
103 * @param handle - the connection handle.
104 * @param conn_info - the configuration to use for the
105 * offload.
106 * return 0 on success, otherwise error value.
107 * @destroy_conn: stops an offloaded connection
108 * @param cdev
109 * @param handle - the connection handle.
110 * @param terminate_params
111 * return 0 on success, otherwise error value.
112 * @get_stats: gets FCoE related statistics
113 * @param cdev
114 * @param stats - pointer to struck that would be filled
115 * we stats
116 * return 0 on success, error otherwise.
117 */
118 struct qed_fcoe_ops {
119 const struct qed_common_ops *common;
120
121 int (*fill_dev_info)(struct qed_dev *cdev,
122 struct qed_dev_fcoe_info *info);
123
124 void (*register_ops)(struct qed_dev *cdev,
125 struct qed_fcoe_cb_ops *ops, void *cookie);
126
127 const struct qed_ll2_ops *ll2;
128
129 int (*start)(struct qed_dev *cdev, struct qed_fcoe_tid *tasks);
130
131 int (*stop)(struct qed_dev *cdev);
132
133 int (*acquire_conn)(struct qed_dev *cdev,
134 u32 *handle,
135 u32 *fw_cid, void __iomem **p_doorbell);
136
137 int (*release_conn)(struct qed_dev *cdev, u32 handle);
138
139 int (*offload_conn)(struct qed_dev *cdev,
140 u32 handle,
141 struct qed_fcoe_params_offload *conn_info);
142 int (*destroy_conn)(struct qed_dev *cdev,
143 u32 handle, dma_addr_t terminate_params);
144
145 int (*get_stats)(struct qed_dev *cdev, struct qed_fcoe_stats *stats);
146 };
147
148 const struct qed_fcoe_ops *qed_get_fcoe_ops(void);
149 void qed_put_fcoe_ops(void);
150 #endif
151
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