The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/twa/tw_cl_externs.h

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    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  *      $FreeBSD$
   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 #ifndef TW_CL_EXTERNS_H
   40 
   41 #define TW_CL_EXTERNS_H
   42 
   43 /*
   44  * Data structures and functions global to the Common Layer.
   45  */
   46 
   47 extern TW_INT8                  tw_cli_fw_img[];
   48 extern TW_INT32                 tw_cli_fw_img_size;
   49 extern TW_INT8                  *tw_cli_severity_string_table[];
   50 
   51 /* Do controller initialization. */
   52 extern TW_INT32 tw_cli_start_ctlr(struct tw_cli_ctlr_context *ctlr);
   53 
   54 /* Establish a logical connection with the firmware on the controller. */
   55 extern TW_INT32 tw_cli_init_connection(struct tw_cli_ctlr_context *ctlr,
   56         TW_UINT16 message_credits, TW_UINT32 set_features,
   57         TW_UINT16 current_fw_srl, TW_UINT16 current_fw_arch_id,
   58         TW_UINT16 current_fw_branch, TW_UINT16 current_fw_build,
   59         TW_UINT16 *fw_on_ctlr_srl, TW_UINT16 *fw_on_ctlr_arch_id,
   60         TW_UINT16 *fw_on_ctlr_branch, TW_UINT16 *fw_on_ctlr_build,
   61         TW_UINT32 *init_connect_result);
   62 
   63 /* Functions in tw_cl_io.c */
   64 
   65 /* Submit a command packet to the firmware on the controller. */
   66 extern TW_INT32 tw_cli_submit_cmd(struct tw_cli_req_context *req);
   67 
   68 /* Get a firmware parameter. */
   69 extern TW_INT32 tw_cli_get_param(struct tw_cli_ctlr_context *ctlr,
   70         TW_INT32 table_id, TW_INT32 parameter_id, TW_VOID *param_data,
   71         TW_INT32 size, TW_VOID (* callback)(struct tw_cli_req_context *req));
   72 
   73 /* Set a firmware parameter. */
   74 extern TW_INT32 tw_cli_set_param(struct tw_cli_ctlr_context *ctlr,
   75         TW_INT32 table_id, TW_INT32 param_id, TW_INT32 param_size,
   76         TW_VOID *data, TW_VOID (* callback)(struct tw_cli_req_context *req));
   77 
   78 /* Submit a command to the firmware and poll for completion. */
   79 extern TW_INT32 tw_cli_submit_and_poll_request(struct tw_cli_req_context *req,
   80         TW_UINT32 timeout);
   81 
   82 /* Soft reset the controller. */
   83 extern TW_INT32 tw_cli_soft_reset(struct tw_cli_ctlr_context *ctlr);
   84 extern int twa_setup_intr(struct twa_softc *sc);
   85 extern int twa_teardown_intr(struct twa_softc *sc);
   86 
   87 /* Send down a SCSI command to the firmware (usually, an internal Req Sense. */
   88 extern TW_INT32 tw_cli_send_scsi_cmd(struct tw_cli_req_context *req,
   89         TW_INT32 cmd);
   90 
   91 /* Get an AEN from the firmware (by sending down a Req Sense). */
   92 extern TW_INT32 tw_cli_get_aen(struct tw_cli_ctlr_context *ctlr);
   93 
   94 /* Fill in the scatter/gather list. */
   95 extern TW_VOID tw_cli_fill_sg_list(struct tw_cli_ctlr_context *ctlr,
   96         TW_VOID *sgl_src, TW_VOID *sgl_dest, TW_INT32 num_sgl_entries);
   97 
   98 /* Functions in tw_cl_intr.c */
   99 
  100 /* Process a host interrupt. */
  101 extern TW_VOID  tw_cli_process_host_intr(struct tw_cli_ctlr_context *ctlr);
  102 
  103 /* Process an attention interrupt. */
  104 extern TW_VOID  tw_cli_process_attn_intr(struct tw_cli_ctlr_context *ctlr);
  105 
  106 /* Process a command interrupt. */
  107 extern TW_VOID  tw_cli_process_cmd_intr(struct tw_cli_ctlr_context *ctlr);
  108 
  109 /* Process a response interrupt from the controller. */
  110 extern TW_INT32 tw_cli_process_resp_intr(struct tw_cli_ctlr_context *ctlr);
  111 
  112 /* Submit any requests in the pending queue to the firmware. */
  113 extern TW_INT32 tw_cli_submit_pending_queue(struct tw_cli_ctlr_context *ctlr);
  114 
  115 /* Process all requests in the complete queue. */
  116 extern TW_VOID  tw_cli_process_complete_queue(struct tw_cli_ctlr_context *ctlr);
  117 
  118 /* CL internal callback for SCSI/fw passthru requests. */
  119 extern TW_VOID  tw_cli_complete_io(struct tw_cli_req_context *req);
  120 
  121 /* Completion routine for SCSI requests. */
  122 extern TW_VOID  tw_cli_scsi_complete(struct tw_cli_req_context *req);
  123 
  124 /* Callback for get/set param requests. */
  125 extern TW_VOID  tw_cli_param_callback(struct tw_cli_req_context *req);
  126 
  127 /* Callback for Req Sense commands to get AEN's. */
  128 extern TW_VOID  tw_cli_aen_callback(struct tw_cli_req_context *req);
  129 
  130 /* Decide what to do with a retrieved AEN. */
  131 extern TW_UINT16        tw_cli_manage_aen(struct tw_cli_ctlr_context *ctlr,
  132         struct tw_cli_req_context *req);
  133 
  134 /* Enable controller interrupts. */
  135 extern TW_VOID
  136         tw_cli_enable_interrupts(struct tw_cli_ctlr_context *ctlr_handle);
  137 
  138 /* Disable controller interrupts. */
  139 extern TW_VOID
  140         tw_cli_disable_interrupts(struct tw_cli_ctlr_context *ctlr_handle);
  141 
  142 /* Functions in tw_cl_misc.c */
  143 
  144 /* Print if dbg_level is appropriate (by calling OS Layer). */
  145 extern TW_VOID  tw_cli_dbg_printf(TW_UINT8 dbg_level,
  146         struct tw_cl_ctlr_handle *ctlr_handle, const TW_INT8 *cur_func,
  147         TW_INT8 *fmt, ...);
  148 
  149 /* Describe meaning of each set bit in the given register. */
  150 extern TW_INT8  *tw_cli_describe_bits(TW_UINT32 reg, TW_INT8 *str);
  151 
  152 /* Complete all requests in the complete queue with a RESET status. */
  153 extern TW_VOID  tw_cli_drain_complete_queue(struct tw_cli_ctlr_context *ctlr);
  154 
  155 /* Complete all requests in the busy queue with a RESET status. */
  156 extern TW_VOID  tw_cli_drain_busy_queue(struct tw_cli_ctlr_context *ctlr);
  157 
  158 /* Complete all requests in the pending queue with a RESET status. */
  159 extern TW_VOID  tw_cli_drain_pending_queue(struct tw_cli_ctlr_context *ctlr);
  160 
  161 /* Drain the controller response queue. */
  162 extern TW_INT32 tw_cli_drain_response_queue(struct tw_cli_ctlr_context *ctlr);
  163 
  164 /* Find a particular response in the controller response queue. */
  165 extern TW_INT32 tw_cli_find_response(struct tw_cli_ctlr_context *ctlr,
  166         TW_INT32 req_id);
  167 
  168 /* Drain the controller AEN queue. */
  169 extern TW_INT32 tw_cli_drain_aen_queue(struct tw_cli_ctlr_context *ctlr);
  170 
  171 /* Determine if a given AEN has been posted by the firmware. */
  172 extern TW_INT32 tw_cli_find_aen(struct tw_cli_ctlr_context *ctlr,
  173         TW_UINT16 aen_code);
  174 
  175 /* Poll for a given status to show up in the firmware status register. */
  176 extern TW_INT32 tw_cli_poll_status(struct tw_cli_ctlr_context *ctlr,
  177         TW_UINT32 status, TW_UINT32 timeout);
  178 
  179 /* Get a free CL internal request context packet. */
  180 extern struct tw_cli_req_context *
  181         tw_cli_get_request(struct tw_cli_ctlr_context *ctlr
  182         );
  183 
  184 /* Notify OSL of controller info (fw/BIOS versions, etc.). */
  185 extern TW_VOID  tw_cli_notify_ctlr_info(struct tw_cli_ctlr_context *ctlr);
  186 
  187 /* Make sure that the firmware status register reports a proper status. */
  188 extern TW_INT32 tw_cli_check_ctlr_state(struct tw_cli_ctlr_context *ctlr,
  189         TW_UINT32 status_reg);
  190 
  191 #endif /* TW_CL_EXTERNS_H */

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