xref: /openbmc/linux/include/linux/qed/qed_fcoe_if.h (revision eb660324)
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