1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2004-07 Applied Micro Circuits Corporation.
5 * Copyright (c) 2004-05 Vinod Kashyap
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: releng/12.0/sys/dev/twa/tw_cl_externs.h 326255 2017-11-27 14:52:40Z pfg $
30 */
31
32 /*
33 * AMCC'S 3ware driver for 9000 series storage controllers.
34 *
35 * Author: Vinod Kashyap
36 * Modifications by: Adam Radford
37 */
38
39
40
41 #ifndef TW_CL_EXTERNS_H
42
43 #define TW_CL_EXTERNS_H
44
45
46 /*
47 * Data structures and functions global to the Common Layer.
48 */
49
50
51 extern TW_INT8 tw_cli_fw_img[];
52 extern TW_INT32 tw_cli_fw_img_size;
53 extern TW_INT8 *tw_cli_severity_string_table[];
54
55
56 /* Do controller initialization. */
57 extern TW_INT32 tw_cli_start_ctlr(struct tw_cli_ctlr_context *ctlr);
58
59 /* Establish a logical connection with the firmware on the controller. */
60 extern TW_INT32 tw_cli_init_connection(struct tw_cli_ctlr_context *ctlr,
61 TW_UINT16 message_credits, TW_UINT32 set_features,
62 TW_UINT16 current_fw_srl, TW_UINT16 current_fw_arch_id,
63 TW_UINT16 current_fw_branch, TW_UINT16 current_fw_build,
64 TW_UINT16 *fw_on_ctlr_srl, TW_UINT16 *fw_on_ctlr_arch_id,
65 TW_UINT16 *fw_on_ctlr_branch, TW_UINT16 *fw_on_ctlr_build,
66 TW_UINT32 *init_connect_result);
67
68
69
70 /* Functions in tw_cl_io.c */
71
72 /* Submit a command packet to the firmware on the controller. */
73 extern TW_INT32 tw_cli_submit_cmd(struct tw_cli_req_context *req);
74
75 /* Get a firmware parameter. */
76 extern TW_INT32 tw_cli_get_param(struct tw_cli_ctlr_context *ctlr,
77 TW_INT32 table_id, TW_INT32 parameter_id, TW_VOID *param_data,
78 TW_INT32 size, TW_VOID (* callback)(struct tw_cli_req_context *req));
79
80 /* Set a firmware parameter. */
81 extern TW_INT32 tw_cli_set_param(struct tw_cli_ctlr_context *ctlr,
82 TW_INT32 table_id, TW_INT32 param_id, TW_INT32 param_size,
83 TW_VOID *data, TW_VOID (* callback)(struct tw_cli_req_context *req));
84
85 /* Submit a command to the firmware and poll for completion. */
86 extern TW_INT32 tw_cli_submit_and_poll_request(struct tw_cli_req_context *req,
87 TW_UINT32 timeout);
88
89 /* Soft reset the controller. */
90 extern TW_INT32 tw_cli_soft_reset(struct tw_cli_ctlr_context *ctlr);
91 extern int twa_setup_intr(struct twa_softc *sc);
92 extern int twa_teardown_intr(struct twa_softc *sc);
93
94 /* Send down a SCSI command to the firmware (usually, an internal Req Sense. */
95 extern TW_INT32 tw_cli_send_scsi_cmd(struct tw_cli_req_context *req,
96 TW_INT32 cmd);
97
98 /* Get an AEN from the firmware (by sending down a Req Sense). */
99 extern TW_INT32 tw_cli_get_aen(struct tw_cli_ctlr_context *ctlr);
100
101 /* Fill in the scatter/gather list. */
102 extern TW_VOID tw_cli_fill_sg_list(struct tw_cli_ctlr_context *ctlr,
103 TW_VOID *sgl_src, TW_VOID *sgl_dest, TW_INT32 num_sgl_entries);
104
105
106
107 /* Functions in tw_cl_intr.c */
108
109 /* Process a host interrupt. */
110 extern TW_VOID tw_cli_process_host_intr(struct tw_cli_ctlr_context *ctlr);
111
112 /* Process an attention interrupt. */
113 extern TW_VOID tw_cli_process_attn_intr(struct tw_cli_ctlr_context *ctlr);
114
115 /* Process a command interrupt. */
116 extern TW_VOID tw_cli_process_cmd_intr(struct tw_cli_ctlr_context *ctlr);
117
118 /* Process a response interrupt from the controller. */
119 extern TW_INT32 tw_cli_process_resp_intr(struct tw_cli_ctlr_context *ctlr);
120
121 /* Submit any requests in the pending queue to the firmware. */
122 extern TW_INT32 tw_cli_submit_pending_queue(struct tw_cli_ctlr_context *ctlr);
123
124 /* Process all requests in the complete queue. */
125 extern TW_VOID tw_cli_process_complete_queue(struct tw_cli_ctlr_context *ctlr);
126
127 /* CL internal callback for SCSI/fw passthru requests. */
128 extern TW_VOID tw_cli_complete_io(struct tw_cli_req_context *req);
129
130 /* Completion routine for SCSI requests. */
131 extern TW_VOID tw_cli_scsi_complete(struct tw_cli_req_context *req);
132
133 /* Callback for get/set param requests. */
134 extern TW_VOID tw_cli_param_callback(struct tw_cli_req_context *req);
135
136 /* Callback for Req Sense commands to get AEN's. */
137 extern TW_VOID tw_cli_aen_callback(struct tw_cli_req_context *req);
138
139 /* Decide what to do with a retrieved AEN. */
140 extern TW_UINT16 tw_cli_manage_aen(struct tw_cli_ctlr_context *ctlr,
141 struct tw_cli_req_context *req);
142
143 /* Enable controller interrupts. */
144 extern TW_VOID
145 tw_cli_enable_interrupts(struct tw_cli_ctlr_context *ctlr_handle);
146
147 /* Disable controller interrupts. */
148 extern TW_VOID
149 tw_cli_disable_interrupts(struct tw_cli_ctlr_context *ctlr_handle);
150
151
152
153 /* Functions in tw_cl_misc.c */
154
155 /* Print if dbg_level is appropriate (by calling OS Layer). */
156 extern TW_VOID tw_cli_dbg_printf(TW_UINT8 dbg_level,
157 struct tw_cl_ctlr_handle *ctlr_handle, const TW_INT8 *cur_func,
158 TW_INT8 *fmt, ...);
159
160 /* Describe meaning of each set bit in the given register. */
161 extern TW_INT8 *tw_cli_describe_bits(TW_UINT32 reg, TW_INT8 *str);
162
163 /* Complete all requests in the complete queue with a RESET status. */
164 extern TW_VOID tw_cli_drain_complete_queue(struct tw_cli_ctlr_context *ctlr);
165
166 /* Complete all requests in the busy queue with a RESET status. */
167 extern TW_VOID tw_cli_drain_busy_queue(struct tw_cli_ctlr_context *ctlr);
168
169 /* Complete all requests in the pending queue with a RESET status. */
170 extern TW_VOID tw_cli_drain_pending_queue(struct tw_cli_ctlr_context *ctlr);
171
172 /* Drain the controller response queue. */
173 extern TW_INT32 tw_cli_drain_response_queue(struct tw_cli_ctlr_context *ctlr);
174
175 /* Find a particular response in the controller response queue. */
176 extern TW_INT32 tw_cli_find_response(struct tw_cli_ctlr_context *ctlr,
177 TW_INT32 req_id);
178
179 /* Drain the controller AEN queue. */
180 extern TW_INT32 tw_cli_drain_aen_queue(struct tw_cli_ctlr_context *ctlr);
181
182 /* Determine if a given AEN has been posted by the firmware. */
183 extern TW_INT32 tw_cli_find_aen(struct tw_cli_ctlr_context *ctlr,
184 TW_UINT16 aen_code);
185
186 /* Poll for a given status to show up in the firmware status register. */
187 extern TW_INT32 tw_cli_poll_status(struct tw_cli_ctlr_context *ctlr,
188 TW_UINT32 status, TW_UINT32 timeout);
189
190 /* Get a free CL internal request context packet. */
191 extern struct tw_cli_req_context *
192 tw_cli_get_request(struct tw_cli_ctlr_context *ctlr
193 );
194
195 /* Notify OSL of controller info (fw/BIOS versions, etc.). */
196 extern TW_VOID tw_cli_notify_ctlr_info(struct tw_cli_ctlr_context *ctlr);
197
198 /* Make sure that the firmware status register reports a proper status. */
199 extern TW_INT32 tw_cli_check_ctlr_state(struct tw_cli_ctlr_context *ctlr,
200 TW_UINT32 status_reg);
201
202
203
204 #endif /* TW_CL_EXTERNS_H */
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