Commit | Line | Data |
---|---|---|
1f4d4ed6 | 1 | /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ |
fc831825 | 2 | /* QLogic qed NIC Driver |
e8f1cb50 | 3 | * Copyright (c) 2015-2017 QLogic Corporation |
663eacd8 | 4 | * Copyright (c) 2019-2020 Marvell International Ltd. |
fc831825 YM |
5 | */ |
6 | ||
7 | #ifndef _QED_ISCSI_IF_H | |
8 | #define _QED_ISCSI_IF_H | |
9 | #include <linux/types.h> | |
10 | #include <linux/qed/qed_if.h> | |
11 | ||
12 | typedef int (*iscsi_event_cb_t) (void *context, | |
13 | u8 fw_event_code, void *fw_handle); | |
14 | struct qed_iscsi_stats { | |
15 | u64 iscsi_rx_bytes_cnt; | |
16 | u64 iscsi_rx_packet_cnt; | |
17 | u64 iscsi_rx_new_ooo_isle_events_cnt; | |
18 | u32 iscsi_cmdq_threshold_cnt; | |
19 | u32 iscsi_rq_threshold_cnt; | |
20 | u32 iscsi_immq_threshold_cnt; | |
21 | ||
22 | u64 iscsi_rx_dropped_pdus_task_not_valid; | |
23 | ||
24 | u64 iscsi_rx_data_pdu_cnt; | |
25 | u64 iscsi_rx_r2t_pdu_cnt; | |
26 | u64 iscsi_rx_total_pdu_cnt; | |
27 | ||
28 | u64 iscsi_tx_go_to_slow_start_event_cnt; | |
29 | u64 iscsi_tx_fast_retransmit_event_cnt; | |
30 | ||
31 | u64 iscsi_tx_data_pdu_cnt; | |
32 | u64 iscsi_tx_r2t_pdu_cnt; | |
33 | u64 iscsi_tx_total_pdu_cnt; | |
34 | ||
35 | u64 iscsi_tx_bytes_cnt; | |
36 | u64 iscsi_tx_packet_cnt; | |
37 | }; | |
38 | ||
39 | struct qed_dev_iscsi_info { | |
40 | struct qed_dev_info common; | |
41 | ||
42 | void __iomem *primary_dbq_rq_addr; | |
43 | void __iomem *secondary_bdq_rq_addr; | |
08737a3f MY |
44 | |
45 | u8 num_cqs; | |
fc831825 YM |
46 | }; |
47 | ||
48 | struct qed_iscsi_id_params { | |
49 | u8 mac[ETH_ALEN]; | |
50 | u32 ip[4]; | |
51 | u16 port; | |
52 | }; | |
53 | ||
54 | struct qed_iscsi_params_offload { | |
55 | u8 layer_code; | |
56 | dma_addr_t sq_pbl_addr; | |
57 | u32 initial_ack; | |
58 | ||
59 | struct qed_iscsi_id_params src; | |
60 | struct qed_iscsi_id_params dst; | |
61 | u16 vlan_id; | |
62 | u8 tcp_flags; | |
63 | u8 ip_version; | |
64 | u8 default_cq; | |
65 | ||
66 | u8 ka_max_probe_cnt; | |
67 | u8 dup_ack_theshold; | |
68 | u32 rcv_next; | |
69 | u32 snd_una; | |
70 | u32 snd_next; | |
71 | u32 snd_max; | |
72 | u32 snd_wnd; | |
73 | u32 rcv_wnd; | |
74 | u32 snd_wl1; | |
75 | u32 cwnd; | |
76 | u32 ss_thresh; | |
77 | u16 srtt; | |
78 | u16 rtt_var; | |
fc831825 YM |
79 | u32 ts_recent; |
80 | u32 ts_recent_age; | |
81 | u32 total_rt; | |
82 | u32 ka_timeout_delta; | |
83 | u32 rt_timeout_delta; | |
84 | u8 dup_ack_cnt; | |
85 | u8 snd_wnd_probe_cnt; | |
86 | u8 ka_probe_cnt; | |
87 | u8 rt_cnt; | |
88 | u32 flow_label; | |
89 | u32 ka_timeout; | |
90 | u32 ka_interval; | |
91 | u32 max_rt_time; | |
92 | u32 initial_rcv_wnd; | |
93 | u8 ttl; | |
94 | u8 tos_or_tc; | |
95 | u16 remote_port; | |
96 | u16 local_port; | |
97 | u16 mss; | |
98 | u8 snd_wnd_scale; | |
99 | u8 rcv_wnd_scale; | |
fc831825 YM |
100 | u16 da_timeout_value; |
101 | u8 ack_frequency; | |
102 | }; | |
103 | ||
104 | struct qed_iscsi_params_update { | |
105 | u8 update_flag; | |
106 | #define QED_ISCSI_CONN_HD_EN BIT(0) | |
107 | #define QED_ISCSI_CONN_DD_EN BIT(1) | |
108 | #define QED_ISCSI_CONN_INITIAL_R2T BIT(2) | |
109 | #define QED_ISCSI_CONN_IMMEDIATE_DATA BIT(3) | |
110 | ||
111 | u32 max_seq_size; | |
112 | u32 max_recv_pdu_length; | |
113 | u32 max_send_pdu_length; | |
114 | u32 first_seq_length; | |
115 | u32 exp_stat_sn; | |
116 | }; | |
117 | ||
118 | #define MAX_TID_BLOCKS_ISCSI (512) | |
119 | struct qed_iscsi_tid { | |
120 | u32 size; /* In bytes per task */ | |
121 | u32 num_tids_per_block; | |
122 | u8 *blocks[MAX_TID_BLOCKS_ISCSI]; | |
123 | }; | |
124 | ||
125 | struct qed_iscsi_cb_ops { | |
126 | struct qed_common_cb_ops common; | |
127 | }; | |
128 | ||
129 | /** | |
130 | * struct qed_iscsi_ops - qed iSCSI operations. | |
131 | * @common: common operations pointer | |
132 | * @ll2: light L2 operations pointer | |
133 | * @fill_dev_info: fills iSCSI specific information | |
134 | * @param cdev | |
135 | * @param info | |
cc4e7fa5 | 136 | * @return 0 on success, otherwise error value. |
fc831825 YM |
137 | * @register_ops: register iscsi operations |
138 | * @param cdev | |
139 | * @param ops - specified using qed_iscsi_cb_ops | |
140 | * @param cookie - driver private | |
141 | * @start: iscsi in FW | |
142 | * @param cdev | |
143 | * @param tasks - qed will fill information about tasks | |
144 | * return 0 on success, otherwise error value. | |
145 | * @stop: iscsi in FW | |
146 | * @param cdev | |
147 | * return 0 on success, otherwise error value. | |
148 | * @acquire_conn: acquire a new iscsi connection | |
149 | * @param cdev | |
150 | * @param handle - qed will fill handle that should be | |
151 | * used henceforth as identifier of the | |
152 | * connection. | |
153 | * @param p_doorbell - qed will fill the address of the | |
154 | * doorbell. | |
cc4e7fa5 | 155 | * @return 0 on success, otherwise error value. |
fc831825 YM |
156 | * @release_conn: release a previously acquired iscsi connection |
157 | * @param cdev | |
158 | * @param handle - the connection handle. | |
159 | * @return 0 on success, otherwise error value. | |
160 | * @offload_conn: configures an offloaded connection | |
161 | * @param cdev | |
162 | * @param handle - the connection handle. | |
163 | * @param conn_info - the configuration to use for the | |
164 | * offload. | |
165 | * @return 0 on success, otherwise error value. | |
166 | * @update_conn: updates an offloaded connection | |
167 | * @param cdev | |
168 | * @param handle - the connection handle. | |
169 | * @param conn_info - the configuration to use for the | |
170 | * offload. | |
171 | * @return 0 on success, otherwise error value. | |
172 | * @destroy_conn: stops an offloaded connection | |
173 | * @param cdev | |
174 | * @param handle - the connection handle. | |
175 | * @return 0 on success, otherwise error value. | |
176 | * @clear_sq: clear all task in sq | |
177 | * @param cdev | |
178 | * @param handle - the connection handle. | |
179 | * @return 0 on success, otherwise error value. | |
180 | * @get_stats: iSCSI related statistics | |
181 | * @param cdev | |
182 | * @param stats - pointer to struck that would be filled | |
183 | * we stats | |
184 | * @return 0 on success, error otherwise. | |
19198e4e | 185 | * @change_mac: Change MAC of interface |
dc4528e9 MY |
186 | * @param cdev |
187 | * @param handle - the connection handle. | |
188 | * @param mac - new MAC to configure. | |
189 | * @return 0 on success, otherwise error value. | |
fc831825 YM |
190 | */ |
191 | struct qed_iscsi_ops { | |
192 | const struct qed_common_ops *common; | |
193 | ||
194 | const struct qed_ll2_ops *ll2; | |
195 | ||
196 | int (*fill_dev_info)(struct qed_dev *cdev, | |
197 | struct qed_dev_iscsi_info *info); | |
198 | ||
199 | void (*register_ops)(struct qed_dev *cdev, | |
200 | struct qed_iscsi_cb_ops *ops, void *cookie); | |
201 | ||
202 | int (*start)(struct qed_dev *cdev, | |
203 | struct qed_iscsi_tid *tasks, | |
204 | void *event_context, iscsi_event_cb_t async_event_cb); | |
205 | ||
206 | int (*stop)(struct qed_dev *cdev); | |
207 | ||
208 | int (*acquire_conn)(struct qed_dev *cdev, | |
209 | u32 *handle, | |
210 | u32 *fw_cid, void __iomem **p_doorbell); | |
211 | ||
212 | int (*release_conn)(struct qed_dev *cdev, u32 handle); | |
213 | ||
214 | int (*offload_conn)(struct qed_dev *cdev, | |
215 | u32 handle, | |
216 | struct qed_iscsi_params_offload *conn_info); | |
217 | ||
218 | int (*update_conn)(struct qed_dev *cdev, | |
219 | u32 handle, | |
220 | struct qed_iscsi_params_update *conn_info); | |
221 | ||
222 | int (*destroy_conn)(struct qed_dev *cdev, u32 handle, u8 abrt_conn); | |
223 | ||
224 | int (*clear_sq)(struct qed_dev *cdev, u32 handle); | |
225 | ||
226 | int (*get_stats)(struct qed_dev *cdev, | |
227 | struct qed_iscsi_stats *stats); | |
dc4528e9 MY |
228 | |
229 | int (*change_mac)(struct qed_dev *cdev, u32 handle, const u8 *mac); | |
fc831825 YM |
230 | }; |
231 | ||
232 | const struct qed_iscsi_ops *qed_get_iscsi_ops(void); | |
233 | void qed_put_iscsi_ops(void); | |
234 | #endif |