Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * This file is provided under a dual BSD/GPLv2 license. When using or |
| 3 | * redistributing this file, you may do so under either license. |
| 4 | * |
| 5 | * GPL LICENSE SUMMARY |
| 6 | * |
| 7 | * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of version 2 of the GNU General Public License as |
| 11 | * published by the Free Software Foundation. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| 21 | * The full GNU General Public License is included in this distribution |
| 22 | * in the file called LICENSE.GPL. |
| 23 | * |
| 24 | * BSD LICENSE |
| 25 | * |
| 26 | * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. |
| 27 | * All rights reserved. |
| 28 | * |
| 29 | * Redistribution and use in source and binary forms, with or without |
| 30 | * modification, are permitted provided that the following conditions |
| 31 | * are met: |
| 32 | * |
| 33 | * * Redistributions of source code must retain the above copyright |
| 34 | * notice, this list of conditions and the following disclaimer. |
| 35 | * * Redistributions in binary form must reproduce the above copyright |
| 36 | * notice, this list of conditions and the following disclaimer in |
| 37 | * the documentation and/or other materials provided with the |
| 38 | * distribution. |
| 39 | * * Neither the name of Intel Corporation nor the names of its |
| 40 | * contributors may be used to endorse or promote products derived |
| 41 | * from this software without specific prior written permission. |
| 42 | * |
| 43 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 44 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 45 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 46 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 47 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 48 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 49 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 50 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 51 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 52 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 53 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 54 | */ |
| 55 | |
| 56 | #ifndef _SCIC_PORT_H_ |
| 57 | #define _SCIC_PORT_H_ |
| 58 | |
| 59 | /** |
| 60 | * This file contains all of the interface methods that can be called by an SCI |
| 61 | * Core user on a SAS or SATA port. |
| 62 | * |
| 63 | * |
| 64 | */ |
| 65 | |
| 66 | |
| 67 | #include "sci_types.h" |
| 68 | #include "sci_status.h" |
| 69 | #include "intel_sas.h" |
| 70 | |
| 71 | struct scic_sds_port; |
| 72 | |
| 73 | enum SCIC_PORT_NOT_READY_REASON_CODE { |
| 74 | SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS, |
| 75 | SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED, |
| 76 | SCIC_PORT_NOT_READY_INVALID_PORT_CONFIGURATION, |
| 77 | SCIC_PORT_NOT_READY_RECONFIGURING, |
| 78 | |
| 79 | SCIC_PORT_NOT_READY_REASON_CODE_MAX |
| 80 | }; |
| 81 | |
| 82 | /** |
| 83 | * struct scic_port_end_point_properties - This structure defines the |
| 84 | * properties that can be retrieved for each end-point local or remote |
| 85 | * (attached) port in the controller. |
| 86 | * |
| 87 | * |
| 88 | */ |
| 89 | struct scic_port_end_point_properties { |
| 90 | /** |
| 91 | * This field indicates the SAS address for the associated end |
| 92 | * point in the port. |
| 93 | */ |
| 94 | struct sci_sas_address sas_address; |
| 95 | |
| 96 | /** |
| 97 | * This field indicates the protocols supported by the associated |
| 98 | * end-point in the port. |
| 99 | */ |
| 100 | struct sci_sas_identify_address_frame_protocols protocols; |
| 101 | |
| 102 | }; |
| 103 | |
| 104 | /** |
| 105 | * struct scic_port_properties - This structure defines the properties that can |
| 106 | * be retrieved for each port in the controller. |
| 107 | * |
| 108 | * |
| 109 | */ |
| 110 | struct scic_port_properties { |
| 111 | /** |
| 112 | * This field specifies the logical index of the port (0 relative). |
| 113 | */ |
| 114 | u32 index; |
| 115 | |
| 116 | /** |
| 117 | * This field indicates the local end-point properties for port. |
| 118 | */ |
| 119 | struct scic_port_end_point_properties local; |
| 120 | |
| 121 | /** |
| 122 | * This field indicates the remote (attached) end-point properties |
| 123 | * for the port. |
| 124 | */ |
| 125 | struct scic_port_end_point_properties remote; |
| 126 | |
| 127 | /** |
| 128 | * This field specifies the phys contained inside the port. |
| 129 | */ |
| 130 | u32 phy_mask; |
| 131 | |
| 132 | }; |
| 133 | |
| 134 | /** |
| 135 | * scic_port_get_properties() - This method simply returns the properties |
| 136 | * regarding the port, such as: physical index, protocols, sas address, etc. |
| 137 | * @port: this parameter specifies the port for which to retrieve the physical |
| 138 | * index. |
| 139 | * @properties: This parameter specifies the properties structure into which to |
| 140 | * copy the requested information. |
| 141 | * |
| 142 | * Indicate if the user specified a valid port. SCI_SUCCESS This value is |
| 143 | * returned if the specified port was valid. SCI_FAILURE_INVALID_PORT This |
| 144 | * value is returned if the specified port is not valid. When this value is |
| 145 | * returned, no data is copied to the properties output parameter. |
| 146 | */ |
| 147 | enum sci_status scic_port_get_properties( |
| 148 | struct scic_sds_port *port, |
| 149 | struct scic_port_properties *properties); |
| 150 | |
| 151 | |
| 152 | |
| 153 | /** |
| 154 | * scic_port_start() - This method will make the port ready for operation. |
| 155 | * Prior to calling the start method IO operation is not possible. |
| 156 | * @port: This parameter specifies the port to be started. |
| 157 | * |
| 158 | * Indicate if the port was successfully started. SCI_SUCCESS This value is |
| 159 | * returned if the port was successfully started. SCI_WARNING_ALREADY_IN_STATE |
| 160 | * This value is returned if the port is in the process of starting. |
| 161 | * SCI_FAILURE_INVALID_PORT This value is returned if the supplied port is not |
| 162 | * valid. SCI_FAILURE_INVALID_STATE This value is returned if a start operation |
| 163 | * can't be completed due to the state of port. |
| 164 | */ |
| 165 | enum sci_status scic_port_start( |
| 166 | struct scic_sds_port *port); |
| 167 | |
| 168 | /** |
| 169 | * scic_port_stop() - This method will make the port no longer ready for |
| 170 | * operation. After invoking this method IO operation is not possible. |
| 171 | * @port: This parameter specifies the port to be stopped. |
| 172 | * |
| 173 | * Indicate if the port was successfully stopped. SCI_SUCCESS This value is |
| 174 | * returned if the port was successfully stopped. SCI_WARNING_ALREADY_IN_STATE |
| 175 | * This value is returned if the port is already stopped or in the process of |
| 176 | * stopping. SCI_FAILURE_INVALID_PORT This value is returned if the supplied |
| 177 | * port is not valid. SCI_FAILURE_INVALID_STATE This value is returned if a |
| 178 | * stop operation can't be completed due to the state of port. |
| 179 | */ |
| 180 | enum sci_status scic_port_stop( |
| 181 | struct scic_sds_port *port); |
| 182 | |
| 183 | /** |
| 184 | * scic_port_hard_reset() - This method will request the SCI implementation to |
| 185 | * perform a HARD RESET on the SAS Port. If/When the HARD RESET completes |
| 186 | * the SCI user will be notified via an SCI OS callback indicating a direct |
| 187 | * attached device was found. |
| 188 | * @port: a handle corresponding to the SAS port to be hard reset. |
| 189 | * @reset_timeout: This parameter specifies the number of milliseconds in which |
| 190 | * the port reset operation should complete. |
| 191 | * |
| 192 | * The SCI User callback in SCIC_USER_CALLBACKS_T will only be called once for |
| 193 | * each phy in the SAS Port at completion of the hard reset sequence. Return a |
| 194 | * status indicating whether the hard reset started successfully. SCI_SUCCESS |
| 195 | * This value is returned if the hard reset operation started successfully. |
| 196 | */ |
| 197 | enum sci_status scic_port_hard_reset( |
| 198 | struct scic_sds_port *port, |
| 199 | u32 reset_timeout); |
| 200 | |
| 201 | /** |
| 202 | * scic_port_enable_broadcast_change_notification() - This API method enables |
| 203 | * the broadcast change notification from underneath hardware. |
| 204 | * @port: The port upon which broadcast change notifications (BCN) are to be |
| 205 | * enabled. |
| 206 | * |
| 207 | */ |
| 208 | void scic_port_enable_broadcast_change_notification( |
| 209 | struct scic_sds_port *port); |
| 210 | |
| 211 | |
| 212 | #endif /* _SCIC_PORT_H_ */ |
| 213 | |