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6f231dda DW |
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 | ||
f2f30080 | 56 | #include <scsi/sas.h> |
e76d6180 | 57 | #include "sas.h" |
6f231dda DW |
58 | #include "sci_base_state.h" |
59 | #include "sci_base_state_machine.h" | |
60 | #include "scic_phy.h" | |
61 | #include "scic_sds_controller.h" | |
62 | #include "scic_sds_phy.h" | |
6f231dda | 63 | #include "scic_sds_port.h" |
88f3b62a | 64 | #include "remote_node_context.h" |
6f231dda DW |
65 | #include "sci_environment.h" |
66 | #include "sci_util.h" | |
67 | #include "scu_event_codes.h" | |
68 | ||
69 | #define SCIC_SDS_PHY_MIN_TIMER_COUNT (SCI_MAX_PHYS) | |
70 | #define SCIC_SDS_PHY_MAX_TIMER_COUNT (SCI_MAX_PHYS) | |
71 | ||
72 | /* Maximum arbitration wait time in micro-seconds */ | |
73 | #define SCIC_SDS_PHY_MAX_ARBITRATION_WAIT_TIME (700) | |
74 | ||
83e51430 DW |
75 | enum sas_linkrate sci_phy_linkrate(struct scic_sds_phy *sci_phy) |
76 | { | |
77 | return sci_phy->max_negotiated_speed; | |
78 | } | |
79 | ||
6f231dda DW |
80 | /* |
81 | * ***************************************************************************** | |
82 | * * SCIC SDS PHY Internal Methods | |
83 | * ***************************************************************************** */ | |
84 | ||
24621466 HD |
85 | /** |
86 | * This method will initialize the phy transport layer registers | |
e2023b87 | 87 | * @sci_phy: |
24621466 HD |
88 | * @transport_layer_registers |
89 | * | |
90 | * enum sci_status | |
91 | */ | |
92 | static enum sci_status scic_sds_phy_transport_layer_initialization( | |
e2023b87 | 93 | struct scic_sds_phy *sci_phy, |
24621466 HD |
94 | struct scu_transport_layer_registers __iomem *transport_layer_registers) |
95 | { | |
96 | u32 tl_control; | |
97 | ||
e2023b87 | 98 | sci_phy->transport_layer_registers = transport_layer_registers; |
24621466 | 99 | |
bc99aa47 | 100 | writel(SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX, |
e2023b87 | 101 | &sci_phy->transport_layer_registers->stp_rni); |
24621466 | 102 | |
e2023b87 DJ |
103 | /* |
104 | * Hardware team recommends that we enable the STP prefetch for all | |
105 | * transports | |
106 | */ | |
107 | tl_control = readl(&sci_phy->transport_layer_registers->control); | |
24621466 | 108 | tl_control |= SCU_TLCR_GEN_BIT(STP_WRITE_DATA_PREFETCH); |
e2023b87 | 109 | writel(tl_control, &sci_phy->transport_layer_registers->control); |
24621466 HD |
110 | |
111 | return SCI_SUCCESS; | |
112 | } | |
113 | ||
6f231dda DW |
114 | /** |
115 | * This method will initialize the phy link layer registers | |
3c06c283 | 116 | * @sci_phy: |
6f231dda DW |
117 | * @link_layer_registers: |
118 | * | |
119 | * enum sci_status | |
120 | */ | |
3c06c283 DW |
121 | static enum sci_status |
122 | scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy, | |
123 | struct scu_link_layer_registers __iomem *link_layer_registers) | |
6f231dda | 124 | { |
ed0e2483 DJ |
125 | struct scic_sds_controller *scic = |
126 | sci_phy->owning_port->owning_controller; | |
3c06c283 | 127 | int phy_idx = sci_phy->phy_index; |
ed0e2483 DJ |
128 | struct sci_phy_user_params *phy_user = |
129 | &scic->user_parameters.sds1.phys[phy_idx]; | |
130 | struct sci_phy_oem_params *phy_oem = | |
131 | &scic->oem_parameters.sds1.phys[phy_idx]; | |
6f231dda | 132 | u32 phy_configuration; |
ed0e2483 | 133 | struct scic_phy_cap phy_cap; |
6f231dda DW |
134 | u32 parity_check = 0; |
135 | u32 parity_count = 0; | |
3c06c283 | 136 | u32 llctl, link_rate; |
d9def184 | 137 | u32 clksm_value = 0; |
6f231dda | 138 | |
3c06c283 | 139 | sci_phy->link_layer_registers = link_layer_registers; |
6f231dda DW |
140 | |
141 | /* Set our IDENTIFY frame data */ | |
8f31550c | 142 | #define SCI_END_DEVICE 0x01 |
6f231dda | 143 | |
bc99aa47 CH |
144 | writel(SCU_SAS_TIID_GEN_BIT(SMP_INITIATOR) | |
145 | SCU_SAS_TIID_GEN_BIT(SSP_INITIATOR) | | |
146 | SCU_SAS_TIID_GEN_BIT(STP_INITIATOR) | | |
147 | SCU_SAS_TIID_GEN_BIT(DA_SATA_HOST) | | |
148 | SCU_SAS_TIID_GEN_VAL(DEVICE_TYPE, SCI_END_DEVICE), | |
149 | &sci_phy->link_layer_registers->transmit_identification); | |
6f231dda DW |
150 | |
151 | /* Write the device SAS Address */ | |
ed0e2483 DJ |
152 | writel(0xFEDCBA98, |
153 | &sci_phy->link_layer_registers->sas_device_name_high); | |
bc99aa47 | 154 | writel(phy_idx, &sci_phy->link_layer_registers->sas_device_name_low); |
6f231dda DW |
155 | |
156 | /* Write the source SAS Address */ | |
bc99aa47 CH |
157 | writel(phy_oem->sas_address.high, |
158 | &sci_phy->link_layer_registers->source_sas_address_high); | |
159 | writel(phy_oem->sas_address.low, | |
160 | &sci_phy->link_layer_registers->source_sas_address_low); | |
6f231dda DW |
161 | |
162 | /* Clear and Set the PHY Identifier */ | |
bc99aa47 CH |
163 | writel(0, &sci_phy->link_layer_registers->identify_frame_phy_id); |
164 | writel(SCU_SAS_TIPID_GEN_VALUE(ID, phy_idx), | |
165 | &sci_phy->link_layer_registers->identify_frame_phy_id); | |
6f231dda DW |
166 | |
167 | /* Change the initial state of the phy configuration register */ | |
bc99aa47 CH |
168 | phy_configuration = |
169 | readl(&sci_phy->link_layer_registers->phy_configuration); | |
6f231dda DW |
170 | |
171 | /* Hold OOB state machine in reset */ | |
172 | phy_configuration |= SCU_SAS_PCFG_GEN_BIT(OOB_RESET); | |
bc99aa47 CH |
173 | writel(phy_configuration, |
174 | &sci_phy->link_layer_registers->phy_configuration); | |
6f231dda DW |
175 | |
176 | /* Configure the SNW capabilities */ | |
ed0e2483 DJ |
177 | phy_cap.all = 0; |
178 | phy_cap.start = 1; | |
179 | phy_cap.gen3_no_ssc = 1; | |
180 | phy_cap.gen2_no_ssc = 1; | |
181 | phy_cap.gen1_no_ssc = 1; | |
3c06c283 | 182 | if (scic->oem_parameters.sds1.controller.do_enable_ssc == true) { |
ed0e2483 DJ |
183 | phy_cap.gen3_ssc = 1; |
184 | phy_cap.gen2_ssc = 1; | |
185 | phy_cap.gen1_ssc = 1; | |
6f231dda DW |
186 | } |
187 | ||
188 | /* | |
189 | * The SAS specification indicates that the phy_capabilities that | |
190 | * are transmitted shall have an even parity. Calculate the parity. */ | |
ed0e2483 | 191 | parity_check = phy_cap.all; |
6f231dda DW |
192 | while (parity_check != 0) { |
193 | if (parity_check & 0x1) | |
194 | parity_count++; | |
195 | parity_check >>= 1; | |
196 | } | |
197 | ||
198 | /* | |
199 | * If parity indicates there are an odd number of bits set, then | |
200 | * set the parity bit to 1 in the phy capabilities. */ | |
201 | if ((parity_count % 2) != 0) | |
ed0e2483 | 202 | phy_cap.parity = 1; |
6f231dda | 203 | |
ed0e2483 | 204 | writel(phy_cap.all, &sci_phy->link_layer_registers->phy_capabilities); |
6f231dda | 205 | |
3c06c283 DW |
206 | /* Set the enable spinup period but disable the ability to send |
207 | * notify enable spinup | |
208 | */ | |
bc99aa47 CH |
209 | writel(SCU_ENSPINUP_GEN_VAL(COUNT, |
210 | phy_user->notify_enable_spin_up_insertion_frequency), | |
211 | &sci_phy->link_layer_registers->notify_enable_spinup_control); | |
d9def184 | 212 | |
3c06c283 DW |
213 | /* Write the ALIGN Insertion Ferequency for connected phy and |
214 | * inpendent of connected state | |
215 | */ | |
d9def184 | 216 | clksm_value = SCU_ALIGN_INSERTION_FREQUENCY_GEN_VAL(CONNECTED, |
3c06c283 | 217 | phy_user->in_connection_align_insertion_frequency); |
d9def184 JD |
218 | |
219 | clksm_value |= SCU_ALIGN_INSERTION_FREQUENCY_GEN_VAL(GENERAL, | |
3c06c283 DW |
220 | phy_user->align_insertion_frequency); |
221 | ||
bc99aa47 | 222 | writel(clksm_value, &sci_phy->link_layer_registers->clock_skew_management); |
3c06c283 DW |
223 | |
224 | /* @todo Provide a way to write this register correctly */ | |
bc99aa47 CH |
225 | writel(0x02108421, |
226 | &sci_phy->link_layer_registers->afe_lookup_table_control); | |
3c06c283 DW |
227 | |
228 | llctl = SCU_SAS_LLCTL_GEN_VAL(NO_OUTBOUND_TASK_TIMEOUT, | |
229 | (u8)scic->user_parameters.sds1.no_outbound_task_timeout); | |
230 | ||
231 | switch(phy_user->max_speed_generation) { | |
232 | case SCIC_SDS_PARM_GEN3_SPEED: | |
233 | link_rate = SCU_SAS_LINK_LAYER_CONTROL_MAX_LINK_RATE_GEN3; | |
234 | break; | |
235 | case SCIC_SDS_PARM_GEN2_SPEED: | |
236 | link_rate = SCU_SAS_LINK_LAYER_CONTROL_MAX_LINK_RATE_GEN2; | |
237 | break; | |
238 | default: | |
239 | link_rate = SCU_SAS_LINK_LAYER_CONTROL_MAX_LINK_RATE_GEN1; | |
240 | break; | |
241 | } | |
242 | llctl |= SCU_SAS_LLCTL_GEN_VAL(MAX_LINK_RATE, link_rate); | |
bc99aa47 | 243 | writel(llctl, &sci_phy->link_layer_registers->link_layer_control); |
3c06c283 DW |
244 | |
245 | if (is_a0() || is_a2()) { | |
246 | /* Program the max ARB time for the PHY to 700us so we inter-operate with | |
247 | * the PMC expander which shuts down PHYs if the expander PHY generates too | |
248 | * many breaks. This time value will guarantee that the initiator PHY will | |
249 | * generate the break. | |
250 | */ | |
bc99aa47 CH |
251 | writel(SCIC_SDS_PHY_MAX_ARBITRATION_WAIT_TIME, |
252 | &sci_phy->link_layer_registers->maximum_arbitration_wait_timer_timeout); | |
6f231dda | 253 | } |
6f231dda DW |
254 | |
255 | /* | |
256 | * Set the link layer hang detection to 500ms (0x1F4) from its default | |
bc99aa47 CH |
257 | * value of 128ms. Max value is 511 ms. |
258 | */ | |
259 | writel(0x1F4, &sci_phy->link_layer_registers->link_layer_hang_detection_timeout); | |
6f231dda DW |
260 | |
261 | /* We can exit the initial state to the stopped state */ | |
d857d9a0 | 262 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
3c06c283 | 263 | SCI_BASE_PHY_STATE_STOPPED); |
6f231dda DW |
264 | |
265 | return SCI_SUCCESS; | |
266 | } | |
267 | ||
268 | /** | |
269 | * This function will handle the sata SIGNATURE FIS timeout condition. It will | |
270 | * restart the starting substate machine since we dont know what has actually | |
271 | * happening. | |
272 | */ | |
35173d57 | 273 | static void scic_sds_phy_sata_timeout(void *phy) |
6f231dda DW |
274 | { |
275 | struct scic_sds_phy *sci_phy = phy; | |
276 | ||
277 | dev_dbg(sciphy_to_dev(sci_phy), | |
278 | "%s: SCIC SDS Phy 0x%p did not receive signature fis before " | |
279 | "timeout.\n", | |
280 | __func__, | |
281 | sci_phy); | |
282 | ||
068b2c03 | 283 | sci_base_state_machine_stop(&sci_phy->starting_substate_machine); |
6f231dda | 284 | |
d857d9a0 | 285 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 286 | SCI_BASE_PHY_STATE_STARTING); |
6f231dda DW |
287 | } |
288 | ||
6f231dda DW |
289 | /** |
290 | * This method returns the port currently containing this phy. If the phy is | |
291 | * currently contained by the dummy port, then the phy is considered to not | |
292 | * be part of a port. | |
e2023b87 | 293 | * @sci_phy: This parameter specifies the phy for which to retrieve the |
6f231dda DW |
294 | * containing port. |
295 | * | |
296 | * This method returns a handle to a port that contains the supplied phy. | |
a7e536c7 EN |
297 | * NULL This value is returned if the phy is not part of a real |
298 | * port (i.e. it's contained in the dummy port). !NULL All other | |
6f231dda DW |
299 | * values indicate a handle/pointer to the port containing the phy. |
300 | */ | |
301 | struct scic_sds_port *scic_sds_phy_get_port( | |
e2023b87 | 302 | struct scic_sds_phy *sci_phy) |
6f231dda | 303 | { |
e2023b87 | 304 | if (scic_sds_port_get_index(sci_phy->owning_port) == SCIC_SDS_DUMMY_PORT) |
a7e536c7 | 305 | return NULL; |
6f231dda | 306 | |
e2023b87 | 307 | return sci_phy->owning_port; |
6f231dda DW |
308 | } |
309 | ||
310 | /** | |
311 | * This method will assign a port to the phy object. | |
e2023b87 | 312 | * @out]: sci_phy This parameter specifies the phy for which to assign a port |
6f231dda DW |
313 | * object. |
314 | * | |
315 | * | |
316 | */ | |
317 | void scic_sds_phy_set_port( | |
e2023b87 DJ |
318 | struct scic_sds_phy *sci_phy, |
319 | struct scic_sds_port *sci_port) | |
6f231dda | 320 | { |
e2023b87 | 321 | sci_phy->owning_port = sci_port; |
6f231dda | 322 | |
e2023b87 DJ |
323 | if (sci_phy->bcn_received_while_port_unassigned) { |
324 | sci_phy->bcn_received_while_port_unassigned = false; | |
325 | scic_sds_port_broadcast_change_received(sci_phy->owning_port, sci_phy); | |
6f231dda DW |
326 | } |
327 | } | |
328 | ||
329 | /** | |
330 | * This method will initialize the constructed phy | |
331 | * @sci_phy: | |
332 | * @link_layer_registers: | |
333 | * | |
334 | * enum sci_status | |
335 | */ | |
336 | enum sci_status scic_sds_phy_initialize( | |
337 | struct scic_sds_phy *sci_phy, | |
09d7da13 DJ |
338 | struct scu_transport_layer_registers __iomem *transport_layer_registers, |
339 | struct scu_link_layer_registers __iomem *link_layer_registers) | |
6f231dda | 340 | { |
09d7da13 | 341 | struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy); |
d3757c3a | 342 | struct isci_host *ihost = scic->ihost; |
09d7da13 | 343 | |
6f231dda | 344 | /* Create the SIGNATURE FIS Timeout timer for this phy */ |
09d7da13 DJ |
345 | sci_phy->sata_timeout_timer = |
346 | isci_timer_create( | |
347 | ihost, | |
348 | sci_phy, | |
349 | scic_sds_phy_sata_timeout); | |
6f231dda | 350 | |
24621466 | 351 | /* Perfrom the initialization of the TL hardware */ |
09d7da13 DJ |
352 | scic_sds_phy_transport_layer_initialization( |
353 | sci_phy, | |
354 | transport_layer_registers); | |
24621466 | 355 | |
6f231dda DW |
356 | /* Perofrm the initialization of the PE hardware */ |
357 | scic_sds_phy_link_layer_initialization(sci_phy, link_layer_registers); | |
358 | ||
359 | /* | |
360 | * There is nothing that needs to be done in this state just | |
361 | * transition to the stopped state. */ | |
d857d9a0 | 362 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 363 | SCI_BASE_PHY_STATE_STOPPED); |
6f231dda DW |
364 | |
365 | return SCI_SUCCESS; | |
366 | } | |
367 | ||
24621466 HD |
368 | /** |
369 | * This method assigns the direct attached device ID for this phy. | |
370 | * | |
e2023b87 | 371 | * @sci_phy The phy for which the direct attached device id is to |
24621466 HD |
372 | * be assigned. |
373 | * @device_id The direct attached device ID to assign to the phy. | |
374 | * This will either be the RNi for the device or an invalid RNi if there | |
375 | * is no current device assigned to the phy. | |
376 | */ | |
377 | void scic_sds_phy_setup_transport( | |
e2023b87 | 378 | struct scic_sds_phy *sci_phy, |
24621466 HD |
379 | u32 device_id) |
380 | { | |
381 | u32 tl_control; | |
382 | ||
e2023b87 | 383 | writel(device_id, &sci_phy->transport_layer_registers->stp_rni); |
24621466 HD |
384 | |
385 | /* | |
386 | * The read should guarantee that the first write gets posted | |
387 | * before the next write | |
388 | */ | |
e2023b87 | 389 | tl_control = readl(&sci_phy->transport_layer_registers->control); |
24621466 | 390 | tl_control |= SCU_TLCR_GEN_BIT(CLEAR_TCI_NCQ_MAPPING_TABLE); |
e2023b87 | 391 | writel(tl_control, &sci_phy->transport_layer_registers->control); |
24621466 | 392 | } |
6f231dda DW |
393 | |
394 | /** | |
395 | * | |
e2023b87 | 396 | * @sci_phy: The phy object to be suspended. |
6f231dda DW |
397 | * |
398 | * This function will perform the register reads/writes to suspend the SCU | |
399 | * hardware protocol engine. none | |
400 | */ | |
35173d57 | 401 | static void scic_sds_phy_suspend( |
e2023b87 | 402 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
403 | { |
404 | u32 scu_sas_pcfg_value; | |
405 | ||
bc99aa47 | 406 | scu_sas_pcfg_value = |
e2023b87 | 407 | readl(&sci_phy->link_layer_registers->phy_configuration); |
6f231dda | 408 | scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(SUSPEND_PROTOCOL_ENGINE); |
bc99aa47 | 409 | writel(scu_sas_pcfg_value, |
e2023b87 | 410 | &sci_phy->link_layer_registers->phy_configuration); |
bc99aa47 | 411 | |
e2023b87 DJ |
412 | scic_sds_phy_setup_transport( |
413 | sci_phy, | |
414 | SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX); | |
6f231dda DW |
415 | } |
416 | ||
4b7ebd05 | 417 | void scic_sds_phy_resume(struct scic_sds_phy *sci_phy) |
6f231dda DW |
418 | { |
419 | u32 scu_sas_pcfg_value; | |
420 | ||
bc99aa47 | 421 | scu_sas_pcfg_value = |
e2023b87 | 422 | readl(&sci_phy->link_layer_registers->phy_configuration); |
6f231dda | 423 | scu_sas_pcfg_value &= ~SCU_SAS_PCFG_GEN_BIT(SUSPEND_PROTOCOL_ENGINE); |
bc99aa47 | 424 | writel(scu_sas_pcfg_value, |
e2023b87 | 425 | &sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
426 | } |
427 | ||
4b7ebd05 DJ |
428 | void scic_sds_phy_get_sas_address(struct scic_sds_phy *sci_phy, |
429 | struct sci_sas_address *sas_address) | |
6f231dda | 430 | { |
e2023b87 DJ |
431 | sas_address->high = readl(&sci_phy->link_layer_registers->source_sas_address_high); |
432 | sas_address->low = readl(&sci_phy->link_layer_registers->source_sas_address_low); | |
6f231dda DW |
433 | } |
434 | ||
4b7ebd05 DJ |
435 | void scic_sds_phy_get_attached_sas_address(struct scic_sds_phy *sci_phy, |
436 | struct sci_sas_address *sas_address) | |
6f231dda | 437 | { |
4b7ebd05 | 438 | struct sas_identify_frame *iaf; |
f700ad43 | 439 | struct isci_phy *iphy = sci_phy->iphy; |
4b7ebd05 | 440 | |
f700ad43 | 441 | iaf = &iphy->frame_rcvd.iaf; |
4b7ebd05 | 442 | memcpy(sas_address, iaf->sas_addr, SAS_ADDR_SIZE); |
6f231dda DW |
443 | } |
444 | ||
d7b90fc3 DJ |
445 | void scic_sds_phy_get_protocols(struct scic_sds_phy *sci_phy, |
446 | struct scic_phy_proto *protocols) | |
6f231dda | 447 | { |
d7b90fc3 | 448 | protocols->all = |
e2023b87 | 449 | (u16)(readl(&sci_phy-> |
bc99aa47 CH |
450 | link_layer_registers->transmit_identification) & |
451 | 0x0000FFFF); | |
6f231dda DW |
452 | } |
453 | ||
6f231dda DW |
454 | /** |
455 | * This method will attempt to start the phy object. This request is only valid | |
456 | * when the phy is in the stopped state | |
4d07f7f3 | 457 | * @sci_phy: |
6f231dda DW |
458 | * |
459 | * enum sci_status | |
460 | */ | |
4d07f7f3 | 461 | enum sci_status scic_sds_phy_start(struct scic_sds_phy *sci_phy) |
6f231dda | 462 | { |
d857d9a0 | 463 | return sci_phy->state_handlers->start_handler(sci_phy); |
6f231dda DW |
464 | } |
465 | ||
466 | /** | |
467 | * This method will attempt to stop the phy object. | |
4d07f7f3 | 468 | * @sci_phy: |
6f231dda | 469 | * |
4d07f7f3 DJ |
470 | * enum sci_status SCI_SUCCESS if the phy is going to stop SCI_INVALID_STATE |
471 | * if the phy is not in a valid state to stop | |
6f231dda | 472 | */ |
4d07f7f3 | 473 | enum sci_status scic_sds_phy_stop(struct scic_sds_phy *sci_phy) |
6f231dda | 474 | { |
d857d9a0 | 475 | return sci_phy->state_handlers->stop_handler(sci_phy); |
6f231dda DW |
476 | } |
477 | ||
478 | /** | |
479 | * This method will attempt to reset the phy. This request is only valid when | |
480 | * the phy is in an ready state | |
e2023b87 | 481 | * @sci_phy: |
6f231dda DW |
482 | * |
483 | * enum sci_status | |
484 | */ | |
485 | enum sci_status scic_sds_phy_reset( | |
e2023b87 | 486 | struct scic_sds_phy *sci_phy) |
6f231dda | 487 | { |
e2023b87 | 488 | return sci_phy->state_handlers->reset_handler(sci_phy); |
6f231dda DW |
489 | } |
490 | ||
491 | /** | |
492 | * This method will process the event code received. | |
e2023b87 | 493 | * @sci_phy: |
6f231dda DW |
494 | * @event_code: |
495 | * | |
496 | * enum sci_status | |
497 | */ | |
498 | enum sci_status scic_sds_phy_event_handler( | |
e2023b87 | 499 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
500 | u32 event_code) |
501 | { | |
e2023b87 | 502 | return sci_phy->state_handlers->event_handler(sci_phy, event_code); |
6f231dda DW |
503 | } |
504 | ||
505 | /** | |
506 | * This method will process the frame index received. | |
e2023b87 | 507 | * @sci_phy: |
6f231dda DW |
508 | * @frame_index: |
509 | * | |
510 | * enum sci_status | |
511 | */ | |
512 | enum sci_status scic_sds_phy_frame_handler( | |
e2023b87 | 513 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
514 | u32 frame_index) |
515 | { | |
e2023b87 | 516 | return sci_phy->state_handlers->frame_handler(sci_phy, frame_index); |
6f231dda DW |
517 | } |
518 | ||
519 | /** | |
520 | * This method will give the phy permission to consume power | |
e2023b87 | 521 | * @sci_phy: |
6f231dda DW |
522 | * |
523 | * enum sci_status | |
524 | */ | |
525 | enum sci_status scic_sds_phy_consume_power_handler( | |
e2023b87 | 526 | struct scic_sds_phy *sci_phy) |
6f231dda | 527 | { |
e2023b87 | 528 | return sci_phy->state_handlers->consume_power_handler(sci_phy); |
6f231dda DW |
529 | } |
530 | ||
6f231dda DW |
531 | /* |
532 | * ***************************************************************************** | |
533 | * * SCIC SDS PHY HELPER FUNCTIONS | |
534 | * ***************************************************************************** */ | |
535 | ||
536 | ||
537 | /** | |
538 | * | |
e2023b87 | 539 | * @sci_phy: The phy object that received SAS PHY DETECTED. |
6f231dda DW |
540 | * |
541 | * This method continues the link training for the phy as if it were a SAS PHY | |
542 | * instead of a SATA PHY. This is done because the completion queue had a SAS | |
543 | * PHY DETECTED event when the state machine was expecting a SATA PHY event. | |
544 | * none | |
545 | */ | |
546 | static void scic_sds_phy_start_sas_link_training( | |
e2023b87 | 547 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
548 | { |
549 | u32 phy_control; | |
550 | ||
bc99aa47 | 551 | phy_control = |
e2023b87 | 552 | readl(&sci_phy->link_layer_registers->phy_configuration); |
6f231dda | 553 | phy_control |= SCU_SAS_PCFG_GEN_BIT(SATA_SPINUP_HOLD); |
bc99aa47 | 554 | writel(phy_control, |
e2023b87 | 555 | &sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
556 | |
557 | sci_base_state_machine_change_state( | |
e2023b87 | 558 | &sci_phy->starting_substate_machine, |
6f231dda DW |
559 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN |
560 | ); | |
561 | ||
e2023b87 | 562 | sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SAS; |
6f231dda DW |
563 | } |
564 | ||
565 | /** | |
566 | * | |
e2023b87 | 567 | * @sci_phy: The phy object that received a SATA SPINUP HOLD event |
6f231dda DW |
568 | * |
569 | * This method continues the link training for the phy as if it were a SATA PHY | |
570 | * instead of a SAS PHY. This is done because the completion queue had a SATA | |
571 | * SPINUP HOLD event when the state machine was expecting a SAS PHY event. none | |
572 | */ | |
573 | static void scic_sds_phy_start_sata_link_training( | |
e2023b87 | 574 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
575 | { |
576 | sci_base_state_machine_change_state( | |
e2023b87 | 577 | &sci_phy->starting_substate_machine, |
6f231dda DW |
578 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER |
579 | ); | |
580 | ||
e2023b87 | 581 | sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA; |
6f231dda DW |
582 | } |
583 | ||
584 | /** | |
068b2c03 DW |
585 | * scic_sds_phy_complete_link_training - perform processing common to |
586 | * all protocols upon completion of link training. | |
587 | * @sci_phy: This parameter specifies the phy object for which link training | |
6f231dda DW |
588 | * has completed. |
589 | * @max_link_rate: This parameter specifies the maximum link rate to be | |
590 | * associated with this phy. | |
591 | * @next_state: This parameter specifies the next state for the phy's starting | |
592 | * sub-state machine. | |
593 | * | |
594 | */ | |
595 | static void scic_sds_phy_complete_link_training( | |
068b2c03 | 596 | struct scic_sds_phy *sci_phy, |
26bace34 | 597 | enum sas_linkrate max_link_rate, |
6f231dda DW |
598 | u32 next_state) |
599 | { | |
068b2c03 | 600 | sci_phy->max_negotiated_speed = max_link_rate; |
6f231dda | 601 | |
068b2c03 DW |
602 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
603 | next_state); | |
6f231dda DW |
604 | } |
605 | ||
6f231dda | 606 | static void scic_sds_phy_restart_starting_state( |
068b2c03 | 607 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
608 | { |
609 | /* Stop the current substate machine */ | |
068b2c03 | 610 | sci_base_state_machine_stop(&sci_phy->starting_substate_machine); |
6f231dda DW |
611 | |
612 | /* Re-enter the base state machine starting state */ | |
d857d9a0 | 613 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 614 | SCI_BASE_PHY_STATE_STARTING); |
6f231dda DW |
615 | } |
616 | ||
c658b109 PM |
617 | /* **************************************************************************** |
618 | * SCIC SDS PHY general handlers | |
619 | ************************************************************************** */ | |
620 | static enum sci_status scic_sds_phy_starting_substate_general_stop_handler( | |
d857d9a0 | 621 | struct scic_sds_phy *phy) |
c658b109 | 622 | { |
d857d9a0 | 623 | sci_base_state_machine_stop(&phy->starting_substate_machine); |
c658b109 PM |
624 | |
625 | sci_base_state_machine_change_state(&phy->state_machine, | |
626 | SCI_BASE_PHY_STATE_STOPPED); | |
627 | ||
628 | return SCI_SUCCESS; | |
629 | } | |
630 | ||
6f231dda DW |
631 | /* |
632 | * ***************************************************************************** | |
633 | * * SCIC SDS PHY EVENT_HANDLERS | |
634 | * ***************************************************************************** */ | |
635 | ||
636 | /** | |
637 | * | |
638 | * @phy: This struct scic_sds_phy object which has received an event. | |
639 | * @event_code: This is the event code which the phy object is to decode. | |
640 | * | |
641 | * This method is called when an event notification is received for the phy | |
642 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SPEED_EN. - | |
643 | * decode the event - sas phy detected causes a state transition to the wait | |
644 | * for speed event notification. - any other events log a warning message and | |
645 | * set a failure status enum sci_status SCI_SUCCESS on any valid event notification | |
646 | * SCI_FAILURE on any unexpected event notifation | |
647 | */ | |
648 | static enum sci_status scic_sds_phy_starting_substate_await_ossp_event_handler( | |
e2023b87 | 649 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
650 | u32 event_code) |
651 | { | |
652 | u32 result = SCI_SUCCESS; | |
653 | ||
654 | switch (scu_get_event_code(event_code)) { | |
655 | case SCU_EVENT_SAS_PHY_DETECTED: | |
e2023b87 DJ |
656 | scic_sds_phy_start_sas_link_training(sci_phy); |
657 | sci_phy->is_in_link_training = true; | |
6f231dda DW |
658 | break; |
659 | ||
660 | case SCU_EVENT_SATA_SPINUP_HOLD: | |
e2023b87 DJ |
661 | scic_sds_phy_start_sata_link_training(sci_phy); |
662 | sci_phy->is_in_link_training = true; | |
6f231dda DW |
663 | break; |
664 | ||
665 | default: | |
e2023b87 | 666 | dev_dbg(sciphy_to_dev(sci_phy), |
d7628d05 DJ |
667 | "%s: PHY starting substate machine received " |
668 | "unexpected event_code %x\n", | |
669 | __func__, | |
670 | event_code); | |
6f231dda DW |
671 | |
672 | result = SCI_FAILURE; | |
673 | break; | |
674 | } | |
675 | ||
676 | return result; | |
677 | } | |
678 | ||
679 | /** | |
680 | * | |
681 | * @phy: This struct scic_sds_phy object which has received an event. | |
682 | * @event_code: This is the event code which the phy object is to decode. | |
683 | * | |
684 | * This method is called when an event notification is received for the phy | |
685 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SPEED_EN. - | |
686 | * decode the event - sas phy detected returns us back to this state. - speed | |
687 | * event detected causes a state transition to the wait for iaf. - identify | |
688 | * timeout is an un-expected event and the state machine is restarted. - link | |
689 | * failure events restart the starting state machine - any other events log a | |
690 | * warning message and set a failure status enum sci_status SCI_SUCCESS on any valid | |
691 | * event notification SCI_FAILURE on any unexpected event notifation | |
692 | */ | |
693 | static enum sci_status scic_sds_phy_starting_substate_await_sas_phy_speed_event_handler( | |
e2023b87 | 694 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
695 | u32 event_code) |
696 | { | |
697 | u32 result = SCI_SUCCESS; | |
698 | ||
699 | switch (scu_get_event_code(event_code)) { | |
700 | case SCU_EVENT_SAS_PHY_DETECTED: | |
701 | /* | |
702 | * Why is this being reported again by the controller? | |
703 | * We would re-enter this state so just stay here */ | |
704 | break; | |
705 | ||
706 | case SCU_EVENT_SAS_15: | |
707 | case SCU_EVENT_SAS_15_SSC: | |
708 | scic_sds_phy_complete_link_training( | |
e2023b87 DJ |
709 | sci_phy, |
710 | SAS_LINK_RATE_1_5_GBPS, | |
711 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF); | |
6f231dda DW |
712 | break; |
713 | ||
714 | case SCU_EVENT_SAS_30: | |
715 | case SCU_EVENT_SAS_30_SSC: | |
716 | scic_sds_phy_complete_link_training( | |
e2023b87 DJ |
717 | sci_phy, |
718 | SAS_LINK_RATE_3_0_GBPS, | |
719 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF); | |
6f231dda DW |
720 | break; |
721 | ||
722 | case SCU_EVENT_SAS_60: | |
723 | case SCU_EVENT_SAS_60_SSC: | |
724 | scic_sds_phy_complete_link_training( | |
e2023b87 DJ |
725 | sci_phy, |
726 | SAS_LINK_RATE_6_0_GBPS, | |
727 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF); | |
6f231dda DW |
728 | break; |
729 | ||
730 | case SCU_EVENT_SATA_SPINUP_HOLD: | |
731 | /* | |
732 | * We were doing SAS PHY link training and received a SATA PHY event | |
733 | * continue OOB/SN as if this were a SATA PHY */ | |
e2023b87 | 734 | scic_sds_phy_start_sata_link_training(sci_phy); |
6f231dda DW |
735 | break; |
736 | ||
737 | case SCU_EVENT_LINK_FAILURE: | |
738 | /* Link failure change state back to the starting state */ | |
e2023b87 | 739 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
740 | break; |
741 | ||
742 | default: | |
e2023b87 | 743 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
744 | "%s: PHY starting substate machine received " |
745 | "unexpected event_code %x\n", | |
746 | __func__, | |
747 | event_code); | |
748 | ||
749 | result = SCI_FAILURE; | |
750 | break; | |
751 | } | |
752 | ||
753 | return result; | |
754 | } | |
755 | ||
756 | /** | |
757 | * | |
758 | * @phy: This struct scic_sds_phy object which has received an event. | |
759 | * @event_code: This is the event code which the phy object is to decode. | |
760 | * | |
761 | * This method is called when an event notification is received for the phy | |
762 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF. - | |
763 | * decode the event - sas phy detected event backs up the state machine to the | |
764 | * await speed notification. - identify timeout is an un-expected event and the | |
765 | * state machine is restarted. - link failure events restart the starting state | |
766 | * machine - any other events log a warning message and set a failure status | |
767 | * enum sci_status SCI_SUCCESS on any valid event notification SCI_FAILURE on any | |
768 | * unexpected event notifation | |
769 | */ | |
770 | static enum sci_status scic_sds_phy_starting_substate_await_iaf_uf_event_handler( | |
e2023b87 | 771 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
772 | u32 event_code) |
773 | { | |
774 | u32 result = SCI_SUCCESS; | |
775 | ||
776 | switch (scu_get_event_code(event_code)) { | |
777 | case SCU_EVENT_SAS_PHY_DETECTED: | |
778 | /* Backup the state machine */ | |
e2023b87 | 779 | scic_sds_phy_start_sas_link_training(sci_phy); |
6f231dda DW |
780 | break; |
781 | ||
782 | case SCU_EVENT_SATA_SPINUP_HOLD: | |
783 | /* | |
784 | * We were doing SAS PHY link training and received a SATA PHY event | |
785 | * continue OOB/SN as if this were a SATA PHY */ | |
e2023b87 | 786 | scic_sds_phy_start_sata_link_training(sci_phy); |
6f231dda DW |
787 | break; |
788 | ||
789 | case SCU_EVENT_RECEIVED_IDENTIFY_TIMEOUT: | |
790 | case SCU_EVENT_LINK_FAILURE: | |
791 | case SCU_EVENT_HARD_RESET_RECEIVED: | |
792 | /* Start the oob/sn state machine over again */ | |
e2023b87 | 793 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
794 | break; |
795 | ||
796 | default: | |
e2023b87 | 797 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
798 | "%s: PHY starting substate machine received " |
799 | "unexpected event_code %x\n", | |
800 | __func__, | |
801 | event_code); | |
802 | ||
803 | result = SCI_FAILURE; | |
804 | break; | |
805 | } | |
806 | ||
807 | return result; | |
808 | } | |
809 | ||
810 | /** | |
811 | * | |
812 | * @phy: This struct scic_sds_phy object which has received an event. | |
813 | * @event_code: This is the event code which the phy object is to decode. | |
814 | * | |
815 | * This method is called when an event notification is received for the phy | |
816 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_POWER. - | |
817 | * decode the event - link failure events restart the starting state machine - | |
818 | * any other events log a warning message and set a failure status enum sci_status | |
819 | * SCI_SUCCESS on a link failure event SCI_FAILURE on any unexpected event | |
820 | * notifation | |
821 | */ | |
822 | static enum sci_status scic_sds_phy_starting_substate_await_sas_power_event_handler( | |
e2023b87 | 823 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
824 | u32 event_code) |
825 | { | |
826 | u32 result = SCI_SUCCESS; | |
827 | ||
828 | switch (scu_get_event_code(event_code)) { | |
829 | case SCU_EVENT_LINK_FAILURE: | |
830 | /* Link failure change state back to the starting state */ | |
e2023b87 | 831 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
832 | break; |
833 | ||
834 | default: | |
e2023b87 | 835 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
836 | "%s: PHY starting substate machine received unexpected " |
837 | "event_code %x\n", | |
838 | __func__, | |
839 | event_code); | |
840 | ||
841 | result = SCI_FAILURE; | |
842 | break; | |
843 | } | |
844 | ||
845 | return result; | |
846 | } | |
847 | ||
848 | /** | |
849 | * | |
850 | * @phy: This struct scic_sds_phy object which has received an event. | |
851 | * @event_code: This is the event code which the phy object is to decode. | |
852 | * | |
853 | * This method is called when an event notification is received for the phy | |
854 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER. - | |
855 | * decode the event - link failure events restart the starting state machine - | |
856 | * sata spinup hold events are ignored since they are expected - any other | |
857 | * events log a warning message and set a failure status enum sci_status SCI_SUCCESS | |
858 | * on a link failure event SCI_FAILURE on any unexpected event notifation | |
859 | */ | |
860 | static enum sci_status scic_sds_phy_starting_substate_await_sata_power_event_handler( | |
e2023b87 | 861 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
862 | u32 event_code) |
863 | { | |
864 | u32 result = SCI_SUCCESS; | |
865 | ||
866 | switch (scu_get_event_code(event_code)) { | |
867 | case SCU_EVENT_LINK_FAILURE: | |
868 | /* Link failure change state back to the starting state */ | |
e2023b87 | 869 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
870 | break; |
871 | ||
872 | case SCU_EVENT_SATA_SPINUP_HOLD: | |
873 | /* These events are received every 10ms and are expected while in this state */ | |
874 | break; | |
875 | ||
876 | case SCU_EVENT_SAS_PHY_DETECTED: | |
877 | /* | |
878 | * There has been a change in the phy type before OOB/SN for the | |
879 | * SATA finished start down the SAS link traning path. */ | |
e2023b87 | 880 | scic_sds_phy_start_sas_link_training(sci_phy); |
6f231dda DW |
881 | break; |
882 | ||
883 | default: | |
e2023b87 | 884 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
885 | "%s: PHY starting substate machine received " |
886 | "unexpected event_code %x\n", | |
887 | __func__, | |
888 | event_code); | |
889 | ||
890 | result = SCI_FAILURE; | |
891 | break; | |
892 | } | |
893 | ||
894 | return result; | |
895 | } | |
896 | ||
897 | /** | |
068b2c03 | 898 | * scic_sds_phy_starting_substate_await_sata_phy_event_handler - |
6f231dda DW |
899 | * @phy: This struct scic_sds_phy object which has received an event. |
900 | * @event_code: This is the event code which the phy object is to decode. | |
901 | * | |
902 | * This method is called when an event notification is received for the phy | |
903 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN. - | |
904 | * decode the event - link failure events restart the starting state machine - | |
905 | * sata spinup hold events are ignored since they are expected - sata phy | |
906 | * detected event change to the wait speed event - any other events log a | |
907 | * warning message and set a failure status enum sci_status SCI_SUCCESS on a link | |
908 | * failure event SCI_FAILURE on any unexpected event notifation | |
909 | */ | |
910 | static enum sci_status scic_sds_phy_starting_substate_await_sata_phy_event_handler( | |
068b2c03 | 911 | struct scic_sds_phy *sci_phy, u32 event_code) |
6f231dda DW |
912 | { |
913 | u32 result = SCI_SUCCESS; | |
914 | ||
915 | switch (scu_get_event_code(event_code)) { | |
916 | case SCU_EVENT_LINK_FAILURE: | |
917 | /* Link failure change state back to the starting state */ | |
068b2c03 | 918 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
919 | break; |
920 | ||
921 | case SCU_EVENT_SATA_SPINUP_HOLD: | |
068b2c03 DW |
922 | /* These events might be received since we dont know how many may be in |
923 | * the completion queue while waiting for power | |
924 | */ | |
6f231dda DW |
925 | break; |
926 | ||
927 | case SCU_EVENT_SATA_PHY_DETECTED: | |
068b2c03 | 928 | sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA; |
6f231dda DW |
929 | |
930 | /* We have received the SATA PHY notification change state */ | |
068b2c03 DW |
931 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
932 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN); | |
6f231dda DW |
933 | break; |
934 | ||
935 | case SCU_EVENT_SAS_PHY_DETECTED: | |
068b2c03 DW |
936 | /* There has been a change in the phy type before OOB/SN for the |
937 | * SATA finished start down the SAS link traning path. | |
938 | */ | |
939 | scic_sds_phy_start_sas_link_training(sci_phy); | |
6f231dda DW |
940 | break; |
941 | ||
942 | default: | |
068b2c03 | 943 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
944 | "%s: PHY starting substate machine received " |
945 | "unexpected event_code %x\n", | |
946 | __func__, | |
947 | event_code); | |
948 | ||
949 | result = SCI_FAILURE; | |
950 | break; | |
951 | } | |
952 | ||
953 | return result; | |
954 | } | |
955 | ||
956 | /** | |
957 | * | |
958 | * @phy: This struct scic_sds_phy object which has received an event. | |
959 | * @event_code: This is the event code which the phy object is to decode. | |
960 | * | |
961 | * This method is called when an event notification is received for the phy | |
962 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. | |
963 | * - decode the event - sata phy detected returns us back to this state. - | |
964 | * speed event detected causes a state transition to the wait for signature. - | |
965 | * link failure events restart the starting state machine - any other events | |
966 | * log a warning message and set a failure status enum sci_status SCI_SUCCESS on any | |
967 | * valid event notification SCI_FAILURE on any unexpected event notifation | |
968 | */ | |
969 | static enum sci_status scic_sds_phy_starting_substate_await_sata_speed_event_handler( | |
e2023b87 | 970 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
971 | u32 event_code) |
972 | { | |
973 | u32 result = SCI_SUCCESS; | |
974 | ||
975 | switch (scu_get_event_code(event_code)) { | |
976 | case SCU_EVENT_SATA_PHY_DETECTED: | |
977 | /* | |
978 | * The hardware reports multiple SATA PHY detected events | |
979 | * ignore the extras */ | |
980 | break; | |
981 | ||
982 | case SCU_EVENT_SATA_15: | |
983 | case SCU_EVENT_SATA_15_SSC: | |
984 | scic_sds_phy_complete_link_training( | |
e2023b87 | 985 | sci_phy, |
26bace34 | 986 | SAS_LINK_RATE_1_5_GBPS, |
e2023b87 | 987 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); |
6f231dda DW |
988 | break; |
989 | ||
990 | case SCU_EVENT_SATA_30: | |
991 | case SCU_EVENT_SATA_30_SSC: | |
992 | scic_sds_phy_complete_link_training( | |
e2023b87 | 993 | sci_phy, |
26bace34 | 994 | SAS_LINK_RATE_3_0_GBPS, |
e2023b87 | 995 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); |
6f231dda DW |
996 | break; |
997 | ||
998 | case SCU_EVENT_SATA_60: | |
999 | case SCU_EVENT_SATA_60_SSC: | |
1000 | scic_sds_phy_complete_link_training( | |
e2023b87 | 1001 | sci_phy, |
26bace34 | 1002 | SAS_LINK_RATE_6_0_GBPS, |
e2023b87 | 1003 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); |
6f231dda DW |
1004 | break; |
1005 | ||
1006 | case SCU_EVENT_LINK_FAILURE: | |
1007 | /* Link failure change state back to the starting state */ | |
e2023b87 | 1008 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
1009 | break; |
1010 | ||
1011 | case SCU_EVENT_SAS_PHY_DETECTED: | |
1012 | /* | |
1013 | * There has been a change in the phy type before OOB/SN for the | |
1014 | * SATA finished start down the SAS link traning path. */ | |
e2023b87 | 1015 | scic_sds_phy_start_sas_link_training(sci_phy); |
6f231dda DW |
1016 | break; |
1017 | ||
1018 | default: | |
e2023b87 | 1019 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1020 | "%s: PHY starting substate machine received " |
1021 | "unexpected event_code %x\n", | |
1022 | __func__, | |
1023 | event_code); | |
1024 | ||
1025 | result = SCI_FAILURE; | |
1026 | break; | |
1027 | } | |
1028 | ||
1029 | return result; | |
1030 | } | |
1031 | ||
1032 | /** | |
068b2c03 | 1033 | * scic_sds_phy_starting_substate_await_sig_fis_event_handler - |
6f231dda DW |
1034 | * @phy: This struct scic_sds_phy object which has received an event. |
1035 | * @event_code: This is the event code which the phy object is to decode. | |
1036 | * | |
1037 | * This method is called when an event notification is received for the phy | |
1038 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - | |
1039 | * decode the event - sas phy detected event backs up the state machine to the | |
1040 | * await speed notification. - identify timeout is an un-expected event and the | |
1041 | * state machine is restarted. - link failure events restart the starting state | |
1042 | * machine - any other events log a warning message and set a failure status | |
1043 | * enum sci_status SCI_SUCCESS on any valid event notification SCI_FAILURE on any | |
1044 | * unexpected event notifation | |
1045 | */ | |
1046 | static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_event_handler( | |
068b2c03 | 1047 | struct scic_sds_phy *sci_phy, u32 event_code) |
6f231dda DW |
1048 | { |
1049 | u32 result = SCI_SUCCESS; | |
1050 | ||
1051 | switch (scu_get_event_code(event_code)) { | |
1052 | case SCU_EVENT_SATA_PHY_DETECTED: | |
1053 | /* Backup the state machine */ | |
068b2c03 DW |
1054 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1055 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN); | |
6f231dda DW |
1056 | break; |
1057 | ||
1058 | case SCU_EVENT_LINK_FAILURE: | |
1059 | /* Link failure change state back to the starting state */ | |
068b2c03 | 1060 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
1061 | break; |
1062 | ||
1063 | default: | |
068b2c03 | 1064 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1065 | "%s: PHY starting substate machine received " |
1066 | "unexpected event_code %x\n", | |
1067 | __func__, | |
1068 | event_code); | |
1069 | ||
1070 | result = SCI_FAILURE; | |
1071 | break; | |
1072 | } | |
1073 | ||
1074 | return result; | |
1075 | } | |
1076 | ||
1077 | ||
1078 | /* | |
1079 | * ***************************************************************************** | |
1080 | * * SCIC SDS PHY FRAME_HANDLERS | |
1081 | * ***************************************************************************** */ | |
1082 | ||
1083 | /** | |
1084 | * | |
1085 | * @phy: This is struct scic_sds_phy object which is being requested to decode the | |
1086 | * frame data. | |
1087 | * @frame_index: This is the index of the unsolicited frame which was received | |
1088 | * for this phy. | |
1089 | * | |
1090 | * This method decodes the unsolicited frame when the struct scic_sds_phy is in the | |
1091 | * SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF. - Get the UF Header - If the UF | |
1092 | * is an IAF - Copy IAF data to local phy object IAF data buffer. - Change | |
1093 | * starting substate to wait power. - else - log warning message of unexpected | |
1094 | * unsolicted frame - release frame buffer enum sci_status SCI_SUCCESS | |
1095 | */ | |
1096 | static enum sci_status scic_sds_phy_starting_substate_await_iaf_uf_frame_handler( | |
068b2c03 | 1097 | struct scic_sds_phy *sci_phy, u32 frame_index) |
6f231dda DW |
1098 | { |
1099 | enum sci_status result; | |
1100 | u32 *frame_words; | |
4b7ebd05 | 1101 | struct sas_identify_frame *identify_frame; |
f700ad43 | 1102 | struct isci_phy *iphy = sci_phy->iphy; |
6f231dda DW |
1103 | |
1104 | result = scic_sds_unsolicited_frame_control_get_header( | |
068b2c03 | 1105 | &(scic_sds_phy_get_controller(sci_phy)->uf_control), |
6f231dda DW |
1106 | frame_index, |
1107 | (void **)&frame_words); | |
1108 | ||
1109 | if (result != SCI_SUCCESS) { | |
1110 | return result; | |
1111 | } | |
1112 | ||
1113 | frame_words[0] = SCIC_SWAP_DWORD(frame_words[0]); | |
4b7ebd05 | 1114 | identify_frame = (struct sas_identify_frame *)frame_words; |
6f231dda | 1115 | |
4b7ebd05 | 1116 | if (identify_frame->frame_type == 0) { |
068b2c03 DW |
1117 | u32 state; |
1118 | ||
1119 | /* Byte swap the rest of the frame so we can make | |
1120 | * a copy of the buffer | |
1121 | */ | |
6f231dda DW |
1122 | frame_words[1] = SCIC_SWAP_DWORD(frame_words[1]); |
1123 | frame_words[2] = SCIC_SWAP_DWORD(frame_words[2]); | |
1124 | frame_words[3] = SCIC_SWAP_DWORD(frame_words[3]); | |
1125 | frame_words[4] = SCIC_SWAP_DWORD(frame_words[4]); | |
1126 | frame_words[5] = SCIC_SWAP_DWORD(frame_words[5]); | |
1127 | ||
f700ad43 | 1128 | memcpy(&iphy->frame_rcvd.iaf, identify_frame, sizeof(*identify_frame)); |
6f231dda | 1129 | |
4b7ebd05 | 1130 | if (identify_frame->smp_tport) { |
068b2c03 DW |
1131 | /* We got the IAF for an expander PHY go to the final state since |
1132 | * there are no power requirements for expander phys. | |
1133 | */ | |
1134 | state = SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL; | |
6f231dda DW |
1135 | } else { |
1136 | /* We got the IAF we can now go to the await spinup semaphore state */ | |
068b2c03 | 1137 | state = SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER; |
6f231dda | 1138 | } |
068b2c03 DW |
1139 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1140 | state); | |
6f231dda DW |
1141 | result = SCI_SUCCESS; |
1142 | } else | |
068b2c03 | 1143 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1144 | "%s: PHY starting substate machine received " |
1145 | "unexpected frame id %x\n", | |
1146 | __func__, | |
1147 | frame_index); | |
1148 | ||
1149 | /* Regardless of the result release this frame since we are done with it */ | |
068b2c03 DW |
1150 | scic_sds_controller_release_frame(scic_sds_phy_get_controller(sci_phy), |
1151 | frame_index); | |
6f231dda DW |
1152 | |
1153 | return result; | |
1154 | } | |
1155 | ||
1156 | /** | |
1157 | * | |
1158 | * @phy: This is struct scic_sds_phy object which is being requested to decode the | |
1159 | * frame data. | |
1160 | * @frame_index: This is the index of the unsolicited frame which was received | |
1161 | * for this phy. | |
1162 | * | |
1163 | * This method decodes the unsolicited frame when the struct scic_sds_phy is in the | |
1164 | * SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - Get the UF Header - If | |
1165 | * the UF is an SIGNATURE FIS - Copy IAF data to local phy object SIGNATURE FIS | |
1166 | * data buffer. - else - log warning message of unexpected unsolicted frame - | |
1167 | * release frame buffer enum sci_status SCI_SUCCESS Must decode the SIGNATURE FIS | |
1168 | * data | |
1169 | */ | |
1170 | static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_frame_handler( | |
068b2c03 | 1171 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
1172 | u32 frame_index) |
1173 | { | |
1174 | enum sci_status result; | |
e76d6180 | 1175 | struct dev_to_host_fis *frame_header; |
6f231dda | 1176 | u32 *fis_frame_data; |
f700ad43 | 1177 | struct isci_phy *iphy = sci_phy->iphy; |
6f231dda DW |
1178 | |
1179 | result = scic_sds_unsolicited_frame_control_get_header( | |
068b2c03 | 1180 | &(scic_sds_phy_get_controller(sci_phy)->uf_control), |
6f231dda | 1181 | frame_index, |
e76d6180 | 1182 | (void **)&frame_header); |
6f231dda | 1183 | |
e76d6180 | 1184 | if (result != SCI_SUCCESS) |
6f231dda | 1185 | return result; |
6f231dda | 1186 | |
e76d6180 DJ |
1187 | if ((frame_header->fis_type == FIS_REGD2H) && |
1188 | !(frame_header->status & ATA_BUSY)) { | |
6f231dda | 1189 | scic_sds_unsolicited_frame_control_get_buffer( |
068b2c03 | 1190 | &(scic_sds_phy_get_controller(sci_phy)->uf_control), |
6f231dda | 1191 | frame_index, |
068b2c03 | 1192 | (void **)&fis_frame_data); |
6f231dda | 1193 | |
f700ad43 DJ |
1194 | scic_sds_controller_copy_sata_response(&iphy->frame_rcvd.fis, |
1195 | frame_header, | |
1196 | fis_frame_data); | |
6f231dda | 1197 | |
e76d6180 | 1198 | /* got IAF we can now go to the await spinup semaphore state */ |
068b2c03 DW |
1199 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1200 | SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL); | |
6f231dda DW |
1201 | |
1202 | result = SCI_SUCCESS; | |
1203 | } else | |
068b2c03 | 1204 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1205 | "%s: PHY starting substate machine received " |
1206 | "unexpected frame id %x\n", | |
1207 | __func__, | |
1208 | frame_index); | |
1209 | ||
e76d6180 | 1210 | /* Regardless of the result we are done with this frame with it */ |
068b2c03 DW |
1211 | scic_sds_controller_release_frame(scic_sds_phy_get_controller(sci_phy), |
1212 | frame_index); | |
6f231dda DW |
1213 | |
1214 | return result; | |
1215 | } | |
1216 | ||
1217 | /* | |
1218 | * ***************************************************************************** | |
1219 | * * SCIC SDS PHY POWER_HANDLERS | |
1220 | * ***************************************************************************** */ | |
1221 | ||
d857d9a0 | 1222 | /* |
6f231dda DW |
1223 | * This method is called by the struct scic_sds_controller when the phy object is |
1224 | * granted power. - The notify enable spinups are turned on for this phy object | |
1225 | * - The phy state machine is transitioned to the | |
1226 | * SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL. enum sci_status SCI_SUCCESS | |
1227 | */ | |
1228 | static enum sci_status scic_sds_phy_starting_substate_await_sas_power_consume_power_handler( | |
068b2c03 | 1229 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
1230 | { |
1231 | u32 enable_spinup; | |
1232 | ||
bc99aa47 | 1233 | enable_spinup = readl(&sci_phy->link_layer_registers->notify_enable_spinup_control); |
6f231dda | 1234 | enable_spinup |= SCU_ENSPINUP_GEN_BIT(ENABLE); |
bc99aa47 | 1235 | writel(enable_spinup, &sci_phy->link_layer_registers->notify_enable_spinup_control); |
6f231dda DW |
1236 | |
1237 | /* Change state to the final state this substate machine has run to completion */ | |
068b2c03 DW |
1238 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1239 | SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL); | |
6f231dda DW |
1240 | |
1241 | return SCI_SUCCESS; | |
1242 | } | |
1243 | ||
d857d9a0 | 1244 | /* |
6f231dda DW |
1245 | * This method is called by the struct scic_sds_controller when the phy object is |
1246 | * granted power. - The phy state machine is transitioned to the | |
1247 | * SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN. enum sci_status SCI_SUCCESS | |
1248 | */ | |
1249 | static enum sci_status scic_sds_phy_starting_substate_await_sata_power_consume_power_handler( | |
068b2c03 | 1250 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
1251 | { |
1252 | u32 scu_sas_pcfg_value; | |
1253 | ||
1254 | /* Release the spinup hold state and reset the OOB state machine */ | |
bc99aa47 CH |
1255 | scu_sas_pcfg_value = |
1256 | readl(&sci_phy->link_layer_registers->phy_configuration); | |
6f231dda DW |
1257 | scu_sas_pcfg_value &= |
1258 | ~(SCU_SAS_PCFG_GEN_BIT(SATA_SPINUP_HOLD) | SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE)); | |
1259 | scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(OOB_RESET); | |
bc99aa47 CH |
1260 | writel(scu_sas_pcfg_value, |
1261 | &sci_phy->link_layer_registers->phy_configuration); | |
6f231dda DW |
1262 | |
1263 | /* Now restart the OOB operation */ | |
1264 | scu_sas_pcfg_value &= ~SCU_SAS_PCFG_GEN_BIT(OOB_RESET); | |
1265 | scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE); | |
bc99aa47 CH |
1266 | writel(scu_sas_pcfg_value, |
1267 | &sci_phy->link_layer_registers->phy_configuration); | |
6f231dda DW |
1268 | |
1269 | /* Change state to the final state this substate machine has run to completion */ | |
068b2c03 DW |
1270 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1271 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN); | |
6f231dda DW |
1272 | |
1273 | return SCI_SUCCESS; | |
1274 | } | |
1275 | ||
d857d9a0 MT |
1276 | static enum sci_status default_phy_handler(struct scic_sds_phy *sci_phy, |
1277 | const char *func) | |
35173d57 | 1278 | { |
35173d57 DW |
1279 | dev_dbg(sciphy_to_dev(sci_phy), |
1280 | "%s: in wrong state: %d\n", func, | |
d857d9a0 | 1281 | sci_base_state_machine_get_state(&sci_phy->state_machine)); |
35173d57 DW |
1282 | return SCI_FAILURE_INVALID_STATE; |
1283 | } | |
1284 | ||
d857d9a0 MT |
1285 | static enum sci_status |
1286 | scic_sds_phy_default_start_handler(struct scic_sds_phy *sci_phy) | |
35173d57 | 1287 | { |
d857d9a0 | 1288 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1289 | } |
1290 | ||
d857d9a0 MT |
1291 | static enum sci_status |
1292 | scic_sds_phy_default_stop_handler(struct scic_sds_phy *sci_phy) | |
35173d57 | 1293 | { |
d857d9a0 | 1294 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1295 | } |
1296 | ||
d857d9a0 MT |
1297 | static enum sci_status |
1298 | scic_sds_phy_default_reset_handler(struct scic_sds_phy *sci_phy) | |
35173d57 | 1299 | { |
d857d9a0 | 1300 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1301 | } |
1302 | ||
d857d9a0 MT |
1303 | static enum sci_status |
1304 | scic_sds_phy_default_destroy_handler(struct scic_sds_phy *sci_phy) | |
35173d57 | 1305 | { |
d857d9a0 | 1306 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1307 | } |
1308 | ||
d857d9a0 MT |
1309 | static enum sci_status |
1310 | scic_sds_phy_default_frame_handler(struct scic_sds_phy *sci_phy, | |
1311 | u32 frame_index) | |
35173d57 DW |
1312 | { |
1313 | struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy); | |
1314 | ||
d857d9a0 | 1315 | default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1316 | scic_sds_controller_release_frame(scic, frame_index); |
1317 | ||
1318 | return SCI_FAILURE_INVALID_STATE; | |
1319 | } | |
1320 | ||
d857d9a0 MT |
1321 | static enum sci_status |
1322 | scic_sds_phy_default_event_handler(struct scic_sds_phy *sci_phy, | |
1323 | u32 event_code) | |
35173d57 | 1324 | { |
d857d9a0 | 1325 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1326 | } |
1327 | ||
d857d9a0 MT |
1328 | static enum sci_status |
1329 | scic_sds_phy_default_consume_power_handler(struct scic_sds_phy *sci_phy) | |
35173d57 | 1330 | { |
d857d9a0 | 1331 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1332 | } |
1333 | ||
1334 | ||
1335 | ||
1336 | static const struct scic_sds_phy_state_handler scic_sds_phy_starting_substate_handler_table[] = { | |
8f31550c | 1337 | [SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = { |
d857d9a0 MT |
1338 | .start_handler = scic_sds_phy_default_start_handler, |
1339 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1340 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1341 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1342 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1343 | .event_handler = scic_sds_phy_default_event_handler, | |
1344 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1345 | }, |
8f31550c | 1346 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = { |
d857d9a0 MT |
1347 | .start_handler = scic_sds_phy_default_start_handler, |
1348 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1349 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1350 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1351 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1352 | .event_handler = scic_sds_phy_starting_substate_await_ossp_event_handler, | |
1353 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1354 | }, |
8f31550c | 1355 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = { |
d857d9a0 MT |
1356 | .start_handler = scic_sds_phy_default_start_handler, |
1357 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1358 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1359 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1360 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1361 | .event_handler = scic_sds_phy_starting_substate_await_sas_phy_speed_event_handler, | |
1362 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1363 | }, |
8f31550c | 1364 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = { |
d857d9a0 MT |
1365 | .start_handler = scic_sds_phy_default_start_handler, |
1366 | .stop_handler = scic_sds_phy_default_stop_handler, | |
1367 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1368 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1369 | .frame_handler = scic_sds_phy_starting_substate_await_iaf_uf_frame_handler, | |
1370 | .event_handler = scic_sds_phy_starting_substate_await_iaf_uf_event_handler, | |
1371 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1372 | }, |
8f31550c | 1373 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER] = { |
d857d9a0 MT |
1374 | .start_handler = scic_sds_phy_default_start_handler, |
1375 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1376 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1377 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1378 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1379 | .event_handler = scic_sds_phy_starting_substate_await_sas_power_event_handler, | |
1380 | .consume_power_handler = scic_sds_phy_starting_substate_await_sas_power_consume_power_handler | |
6f231dda | 1381 | }, |
8f31550c | 1382 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER] = { |
d857d9a0 MT |
1383 | .start_handler = scic_sds_phy_default_start_handler, |
1384 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1385 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1386 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1387 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1388 | .event_handler = scic_sds_phy_starting_substate_await_sata_power_event_handler, | |
1389 | .consume_power_handler = scic_sds_phy_starting_substate_await_sata_power_consume_power_handler | |
6f231dda | 1390 | }, |
8f31550c | 1391 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN] = { |
d857d9a0 MT |
1392 | .start_handler = scic_sds_phy_default_start_handler, |
1393 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1394 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1395 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1396 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1397 | .event_handler = scic_sds_phy_starting_substate_await_sata_phy_event_handler, | |
1398 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1399 | }, |
8f31550c | 1400 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN] = { |
d857d9a0 MT |
1401 | .start_handler = scic_sds_phy_default_start_handler, |
1402 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1403 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1404 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1405 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1406 | .event_handler = scic_sds_phy_starting_substate_await_sata_speed_event_handler, | |
1407 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1408 | }, |
8f31550c | 1409 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF] = { |
d857d9a0 MT |
1410 | .start_handler = scic_sds_phy_default_start_handler, |
1411 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1412 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1413 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1414 | .frame_handler = scic_sds_phy_starting_substate_await_sig_fis_frame_handler, | |
1415 | .event_handler = scic_sds_phy_starting_substate_await_sig_fis_event_handler, | |
1416 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1417 | }, |
8f31550c | 1418 | [SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL] = { |
d857d9a0 MT |
1419 | .start_handler = scic_sds_phy_default_start_handler, |
1420 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1421 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1422 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
1423 | .frame_handler = scic_sds_phy_default_frame_handler, |
1424 | .event_handler = scic_sds_phy_default_event_handler, | |
1425 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda DW |
1426 | } |
1427 | }; | |
1428 | ||
1429 | /** | |
1430 | * scic_sds_phy_set_starting_substate_handlers() - | |
1431 | * | |
1432 | * This macro sets the starting substate handlers by state_id | |
1433 | */ | |
1434 | #define scic_sds_phy_set_starting_substate_handlers(phy, state_id) \ | |
1435 | scic_sds_phy_set_state_handlers(\ | |
1436 | (phy), \ | |
1437 | &scic_sds_phy_starting_substate_handler_table[(state_id)] \ | |
1438 | ) | |
1439 | ||
1440 | /* | |
1441 | * **************************************************************************** | |
1442 | * * PHY STARTING SUBSTATE METHODS | |
1443 | * **************************************************************************** */ | |
1444 | ||
1445 | /** | |
068b2c03 | 1446 | * scic_sds_phy_starting_initial_substate_enter - |
9a0fff7b | 1447 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1448 | * |
1449 | * This method will perform the actions required by the struct scic_sds_phy on | |
1450 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL. - The initial state | |
1451 | * handlers are put in place for the struct scic_sds_phy object. - The state is | |
1452 | * changed to the wait phy type event notification. none | |
1453 | */ | |
9a0fff7b | 1454 | static void scic_sds_phy_starting_initial_substate_enter(void *object) |
6f231dda | 1455 | { |
e1e72a00 | 1456 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1457 | |
1458 | scic_sds_phy_set_starting_substate_handlers( | |
068b2c03 | 1459 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL); |
6f231dda DW |
1460 | |
1461 | /* This is just an temporary state go off to the starting state */ | |
068b2c03 DW |
1462 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1463 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN); | |
6f231dda DW |
1464 | } |
1465 | ||
1466 | /** | |
1467 | * | |
9a0fff7b | 1468 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1469 | * |
1470 | * This method will perform the actions required by the struct scic_sds_phy on | |
1471 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_PHY_TYPE_EN. - Set the | |
1472 | * struct scic_sds_phy object state handlers for this state. none | |
1473 | */ | |
9a0fff7b | 1474 | static void scic_sds_phy_starting_await_ossp_en_substate_enter(void *object) |
6f231dda | 1475 | { |
e1e72a00 | 1476 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1477 | |
1478 | scic_sds_phy_set_starting_substate_handlers( | |
e2023b87 | 1479 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN |
6f231dda DW |
1480 | ); |
1481 | } | |
1482 | ||
1483 | /** | |
1484 | * | |
9a0fff7b | 1485 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1486 | * |
1487 | * This method will perform the actions required by the struct scic_sds_phy on | |
1488 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SPEED_EN. - Set the | |
1489 | * struct scic_sds_phy object state handlers for this state. none | |
1490 | */ | |
1491 | static void scic_sds_phy_starting_await_sas_speed_en_substate_enter( | |
9a0fff7b | 1492 | void *object) |
6f231dda | 1493 | { |
e1e72a00 | 1494 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1495 | |
1496 | scic_sds_phy_set_starting_substate_handlers( | |
e2023b87 | 1497 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN |
6f231dda DW |
1498 | ); |
1499 | } | |
1500 | ||
1501 | /** | |
1502 | * | |
9a0fff7b | 1503 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1504 | * |
1505 | * This method will perform the actions required by the struct scic_sds_phy on | |
1506 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF. - Set the | |
1507 | * struct scic_sds_phy object state handlers for this state. none | |
1508 | */ | |
9a0fff7b | 1509 | static void scic_sds_phy_starting_await_iaf_uf_substate_enter(void *object) |
6f231dda | 1510 | { |
e1e72a00 | 1511 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1512 | |
1513 | scic_sds_phy_set_starting_substate_handlers( | |
e2023b87 | 1514 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF |
6f231dda DW |
1515 | ); |
1516 | } | |
1517 | ||
1518 | /** | |
1519 | * | |
9a0fff7b | 1520 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1521 | * |
1522 | * This method will perform the actions required by the struct scic_sds_phy on | |
1523 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER. - Set the | |
1524 | * struct scic_sds_phy object state handlers for this state. - Add this phy object to | |
1525 | * the power control queue none | |
1526 | */ | |
9a0fff7b | 1527 | static void scic_sds_phy_starting_await_sas_power_substate_enter(void *object) |
6f231dda | 1528 | { |
e1e72a00 | 1529 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1530 | |
1531 | scic_sds_phy_set_starting_substate_handlers( | |
e2023b87 | 1532 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER |
6f231dda DW |
1533 | ); |
1534 | ||
1535 | scic_sds_controller_power_control_queue_insert( | |
e2023b87 DJ |
1536 | scic_sds_phy_get_controller(sci_phy), |
1537 | sci_phy | |
6f231dda DW |
1538 | ); |
1539 | } | |
1540 | ||
1541 | /** | |
1542 | * | |
9a0fff7b | 1543 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1544 | * |
1545 | * This method will perform the actions required by the struct scic_sds_phy on exiting | |
1546 | * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER. - Remove the | |
1547 | * struct scic_sds_phy object from the power control queue. none | |
1548 | */ | |
9a0fff7b | 1549 | static void scic_sds_phy_starting_await_sas_power_substate_exit(void *object) |
6f231dda | 1550 | { |
e1e72a00 | 1551 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1552 | |
1553 | scic_sds_controller_power_control_queue_remove( | |
e2023b87 | 1554 | scic_sds_phy_get_controller(sci_phy), sci_phy |
6f231dda DW |
1555 | ); |
1556 | } | |
1557 | ||
1558 | /** | |
1559 | * | |
9a0fff7b | 1560 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1561 | * |
1562 | * This method will perform the actions required by the struct scic_sds_phy on | |
1563 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER. - Set the | |
1564 | * struct scic_sds_phy object state handlers for this state. - Add this phy object to | |
1565 | * the power control queue none | |
1566 | */ | |
9a0fff7b | 1567 | static void scic_sds_phy_starting_await_sata_power_substate_enter(void *object) |
6f231dda | 1568 | { |
e1e72a00 | 1569 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1570 | |
1571 | scic_sds_phy_set_starting_substate_handlers( | |
e2023b87 | 1572 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER |
6f231dda DW |
1573 | ); |
1574 | ||
1575 | scic_sds_controller_power_control_queue_insert( | |
e2023b87 DJ |
1576 | scic_sds_phy_get_controller(sci_phy), |
1577 | sci_phy | |
6f231dda DW |
1578 | ); |
1579 | } | |
1580 | ||
1581 | /** | |
1582 | * | |
9a0fff7b | 1583 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1584 | * |
1585 | * This method will perform the actions required by the struct scic_sds_phy on exiting | |
1586 | * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER. - Remove the | |
1587 | * struct scic_sds_phy object from the power control queue. none | |
1588 | */ | |
9a0fff7b | 1589 | static void scic_sds_phy_starting_await_sata_power_substate_exit(void *object) |
6f231dda | 1590 | { |
e1e72a00 | 1591 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1592 | |
1593 | scic_sds_controller_power_control_queue_remove( | |
e2023b87 DJ |
1594 | scic_sds_phy_get_controller(sci_phy), |
1595 | sci_phy | |
6f231dda DW |
1596 | ); |
1597 | } | |
1598 | ||
1599 | /** | |
1600 | * | |
9a0fff7b | 1601 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 1602 | * |
09d7da13 | 1603 | * This function will perform the actions required by the struct scic_sds_phy on |
6f231dda DW |
1604 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN. - Set the |
1605 | * struct scic_sds_phy object state handlers for this state. none | |
1606 | */ | |
9a0fff7b | 1607 | static void scic_sds_phy_starting_await_sata_phy_substate_enter(void *object) |
6f231dda | 1608 | { |
e1e72a00 | 1609 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1610 | |
1611 | scic_sds_phy_set_starting_substate_handlers( | |
09d7da13 DJ |
1612 | sci_phy, |
1613 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN); | |
6f231dda | 1614 | |
09d7da13 DJ |
1615 | isci_timer_start(sci_phy->sata_timeout_timer, |
1616 | SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); | |
6f231dda DW |
1617 | } |
1618 | ||
1619 | /** | |
1620 | * | |
9a0fff7b | 1621 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 1622 | * |
09d7da13 DJ |
1623 | * This method will perform the actions required by the struct scic_sds_phy |
1624 | * on exiting | |
6f231dda DW |
1625 | * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. - stop the timer |
1626 | * that was started on entry to await sata phy event notification none | |
1627 | */ | |
09d7da13 | 1628 | static inline void scic_sds_phy_starting_await_sata_phy_substate_exit( |
9a0fff7b | 1629 | void *object) |
6f231dda | 1630 | { |
e1e72a00 | 1631 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 1632 | |
09d7da13 | 1633 | isci_timer_stop(sci_phy->sata_timeout_timer); |
6f231dda DW |
1634 | } |
1635 | ||
1636 | /** | |
1637 | * | |
9a0fff7b | 1638 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1639 | * |
1640 | * This method will perform the actions required by the struct scic_sds_phy on | |
1641 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. - Set the | |
1642 | * struct scic_sds_phy object state handlers for this state. none | |
1643 | */ | |
9a0fff7b | 1644 | static void scic_sds_phy_starting_await_sata_speed_substate_enter(void *object) |
6f231dda | 1645 | { |
e1e72a00 | 1646 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1647 | |
1648 | scic_sds_phy_set_starting_substate_handlers( | |
09d7da13 DJ |
1649 | sci_phy, |
1650 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN); | |
6f231dda | 1651 | |
09d7da13 DJ |
1652 | isci_timer_start(sci_phy->sata_timeout_timer, |
1653 | SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); | |
6f231dda DW |
1654 | } |
1655 | ||
1656 | /** | |
1657 | * | |
9a0fff7b | 1658 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 1659 | * |
09d7da13 DJ |
1660 | * This function will perform the actions required by the |
1661 | * struct scic_sds_phy on exiting | |
6f231dda DW |
1662 | * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. - stop the timer |
1663 | * that was started on entry to await sata phy event notification none | |
1664 | */ | |
09d7da13 | 1665 | static inline void scic_sds_phy_starting_await_sata_speed_substate_exit( |
9a0fff7b | 1666 | void *object) |
6f231dda | 1667 | { |
e1e72a00 | 1668 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 1669 | |
09d7da13 | 1670 | isci_timer_stop(sci_phy->sata_timeout_timer); |
6f231dda DW |
1671 | } |
1672 | ||
1673 | /** | |
1674 | * | |
9a0fff7b | 1675 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 1676 | * |
09d7da13 | 1677 | * This function will perform the actions required by the struct scic_sds_phy on |
6f231dda | 1678 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - Set the |
09d7da13 DJ |
1679 | * struct scic_sds_phy object state handlers for this state. |
1680 | * - Start the SIGNATURE FIS | |
6f231dda DW |
1681 | * timeout timer none |
1682 | */ | |
9a0fff7b | 1683 | static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(void *object) |
6f231dda DW |
1684 | { |
1685 | bool continue_to_ready_state; | |
e1e72a00 | 1686 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1687 | |
1688 | scic_sds_phy_set_starting_substate_handlers( | |
09d7da13 DJ |
1689 | sci_phy, |
1690 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); | |
6f231dda DW |
1691 | |
1692 | continue_to_ready_state = scic_sds_port_link_detected( | |
09d7da13 DJ |
1693 | sci_phy->owning_port, |
1694 | sci_phy); | |
6f231dda DW |
1695 | |
1696 | if (continue_to_ready_state) { | |
1697 | /* | |
09d7da13 DJ |
1698 | * Clear the PE suspend condition so we can actually |
1699 | * receive SIG FIS | |
1700 | * The hardware will not respond to the XRDY until the PE | |
1701 | * suspend condition is cleared. | |
1702 | */ | |
1703 | scic_sds_phy_resume(sci_phy); | |
1704 | ||
1705 | isci_timer_start(sci_phy->sata_timeout_timer, | |
1706 | SCIC_SDS_SIGNATURE_FIS_TIMEOUT); | |
1707 | } else | |
1708 | sci_phy->is_in_link_training = false; | |
6f231dda DW |
1709 | } |
1710 | ||
1711 | /** | |
1712 | * | |
9a0fff7b | 1713 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 1714 | * |
09d7da13 DJ |
1715 | * This function will perform the actions required by the |
1716 | * struct scic_sds_phy on exiting | |
6f231dda DW |
1717 | * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - Stop the SIGNATURE |
1718 | * FIS timeout timer. none | |
1719 | */ | |
09d7da13 | 1720 | static inline void scic_sds_phy_starting_await_sig_fis_uf_substate_exit( |
9a0fff7b | 1721 | void *object) |
6f231dda | 1722 | { |
e1e72a00 | 1723 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 1724 | |
09d7da13 | 1725 | isci_timer_stop(sci_phy->sata_timeout_timer); |
6f231dda DW |
1726 | } |
1727 | ||
1728 | /** | |
1729 | * | |
9a0fff7b | 1730 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1731 | * |
1732 | * This method will perform the actions required by the struct scic_sds_phy on | |
1733 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL. - Set the struct scic_sds_phy | |
1734 | * object state handlers for this state. - Change base state machine to the | |
1735 | * ready state. none | |
1736 | */ | |
9a0fff7b | 1737 | static void scic_sds_phy_starting_final_substate_enter(void *object) |
6f231dda | 1738 | { |
e1e72a00 | 1739 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 1740 | |
068b2c03 DW |
1741 | scic_sds_phy_set_starting_substate_handlers(sci_phy, |
1742 | SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL); | |
6f231dda | 1743 | |
068b2c03 DW |
1744 | /* State machine has run to completion so exit out and change |
1745 | * the base state machine to the ready state | |
1746 | */ | |
d857d9a0 | 1747 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1748 | SCI_BASE_PHY_STATE_READY); |
6f231dda DW |
1749 | } |
1750 | ||
1751 | /* --------------------------------------------------------------------------- */ | |
1752 | ||
35173d57 | 1753 | static const struct sci_base_state scic_sds_phy_starting_substates[] = { |
6f231dda DW |
1754 | [SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = { |
1755 | .enter_state = scic_sds_phy_starting_initial_substate_enter, | |
1756 | }, | |
1757 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = { | |
1758 | .enter_state = scic_sds_phy_starting_await_ossp_en_substate_enter, | |
1759 | }, | |
1760 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = { | |
1761 | .enter_state = scic_sds_phy_starting_await_sas_speed_en_substate_enter, | |
1762 | }, | |
1763 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = { | |
1764 | .enter_state = scic_sds_phy_starting_await_iaf_uf_substate_enter, | |
1765 | }, | |
1766 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER] = { | |
1767 | .enter_state = scic_sds_phy_starting_await_sas_power_substate_enter, | |
1768 | .exit_state = scic_sds_phy_starting_await_sas_power_substate_exit, | |
1769 | }, | |
1770 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER] = { | |
1771 | .enter_state = scic_sds_phy_starting_await_sata_power_substate_enter, | |
1772 | .exit_state = scic_sds_phy_starting_await_sata_power_substate_exit | |
1773 | }, | |
1774 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN] = { | |
1775 | .enter_state = scic_sds_phy_starting_await_sata_phy_substate_enter, | |
1776 | .exit_state = scic_sds_phy_starting_await_sata_phy_substate_exit | |
1777 | }, | |
1778 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN] = { | |
1779 | .enter_state = scic_sds_phy_starting_await_sata_speed_substate_enter, | |
1780 | .exit_state = scic_sds_phy_starting_await_sata_speed_substate_exit | |
1781 | }, | |
1782 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF] = { | |
1783 | .enter_state = scic_sds_phy_starting_await_sig_fis_uf_substate_enter, | |
1784 | .exit_state = scic_sds_phy_starting_await_sig_fis_uf_substate_exit | |
1785 | }, | |
1786 | [SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL] = { | |
1787 | .enter_state = scic_sds_phy_starting_final_substate_enter, | |
1788 | } | |
1789 | }; | |
1790 | ||
d857d9a0 | 1791 | /* |
09d7da13 DJ |
1792 | * This method takes the struct scic_sds_phy from a stopped state and |
1793 | * attempts to start it. - The phy state machine is transitioned to the | |
6f231dda DW |
1794 | * SCI_BASE_PHY_STATE_STARTING. enum sci_status SCI_SUCCESS |
1795 | */ | |
d857d9a0 MT |
1796 | static enum sci_status |
1797 | scic_sds_phy_stopped_state_start_handler(struct scic_sds_phy *sci_phy) | |
6f231dda | 1798 | { |
068b2c03 | 1799 | struct isci_host *ihost; |
068b2c03 DW |
1800 | struct scic_sds_controller *scic; |
1801 | ||
068b2c03 | 1802 | scic = scic_sds_phy_get_controller(sci_phy), |
d3757c3a | 1803 | ihost = scic->ihost; |
6f231dda | 1804 | |
c658b109 | 1805 | /* Create the SIGNATURE FIS Timeout timer for this phy */ |
068b2c03 DW |
1806 | sci_phy->sata_timeout_timer = isci_timer_create(ihost, sci_phy, |
1807 | scic_sds_phy_sata_timeout); | |
1808 | ||
1809 | if (sci_phy->sata_timeout_timer) | |
d857d9a0 | 1810 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1811 | SCI_BASE_PHY_STATE_STARTING); |
6f231dda DW |
1812 | |
1813 | return SCI_SUCCESS; | |
1814 | } | |
1815 | ||
d857d9a0 MT |
1816 | static enum sci_status |
1817 | scic_sds_phy_stopped_state_destroy_handler(struct scic_sds_phy *sci_phy) | |
6f231dda | 1818 | { |
6f231dda DW |
1819 | return SCI_SUCCESS; |
1820 | } | |
1821 | ||
d857d9a0 MT |
1822 | static enum sci_status |
1823 | scic_sds_phy_ready_state_stop_handler(struct scic_sds_phy *sci_phy) | |
6f231dda | 1824 | { |
d857d9a0 | 1825 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1826 | SCI_BASE_PHY_STATE_STOPPED); |
6f231dda DW |
1827 | |
1828 | return SCI_SUCCESS; | |
1829 | } | |
1830 | ||
d857d9a0 MT |
1831 | static enum sci_status |
1832 | scic_sds_phy_ready_state_reset_handler(struct scic_sds_phy *sci_phy) | |
6f231dda | 1833 | { |
d857d9a0 | 1834 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1835 | SCI_BASE_PHY_STATE_RESETTING); |
6f231dda DW |
1836 | |
1837 | return SCI_SUCCESS; | |
1838 | } | |
1839 | ||
1840 | /** | |
068b2c03 | 1841 | * scic_sds_phy_ready_state_event_handler - |
6f231dda DW |
1842 | * @phy: This is the struct scic_sds_phy object which has received the event. |
1843 | * | |
1844 | * This method request the struct scic_sds_phy handle the received event. The only | |
1845 | * event that we are interested in while in the ready state is the link failure | |
1846 | * event. - decoded event is a link failure - transition the struct scic_sds_phy back | |
068b2c03 | 1847 | * to the SCI_BASE_PHY_STATE_STARTING state. - any other event received will |
6f231dda DW |
1848 | * report a warning message enum sci_status SCI_SUCCESS if the event received is a |
1849 | * link failure SCI_FAILURE_INVALID_STATE for any other event received. | |
1850 | */ | |
068b2c03 DW |
1851 | static enum sci_status scic_sds_phy_ready_state_event_handler(struct scic_sds_phy *sci_phy, |
1852 | u32 event_code) | |
6f231dda DW |
1853 | { |
1854 | enum sci_status result = SCI_FAILURE; | |
1855 | ||
1856 | switch (scu_get_event_code(event_code)) { | |
1857 | case SCU_EVENT_LINK_FAILURE: | |
1858 | /* Link failure change state back to the starting state */ | |
d857d9a0 | 1859 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1860 | SCI_BASE_PHY_STATE_STARTING); |
6f231dda DW |
1861 | result = SCI_SUCCESS; |
1862 | break; | |
1863 | ||
1864 | case SCU_EVENT_BROADCAST_CHANGE: | |
1865 | /* Broadcast change received. Notify the port. */ | |
068b2c03 DW |
1866 | if (scic_sds_phy_get_port(sci_phy) != NULL) |
1867 | scic_sds_port_broadcast_change_received(sci_phy->owning_port, sci_phy); | |
6f231dda | 1868 | else |
068b2c03 | 1869 | sci_phy->bcn_received_while_port_unassigned = true; |
6f231dda DW |
1870 | break; |
1871 | ||
1872 | default: | |
068b2c03 | 1873 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1874 | "%sP SCIC PHY 0x%p ready state machine received " |
1875 | "unexpected event_code %x\n", | |
068b2c03 | 1876 | __func__, sci_phy, event_code); |
6f231dda DW |
1877 | |
1878 | result = SCI_FAILURE_INVALID_STATE; | |
1879 | break; | |
1880 | } | |
1881 | ||
1882 | return result; | |
1883 | } | |
1884 | ||
068b2c03 DW |
1885 | static enum sci_status scic_sds_phy_resetting_state_event_handler(struct scic_sds_phy *sci_phy, |
1886 | u32 event_code) | |
6f231dda DW |
1887 | { |
1888 | enum sci_status result = SCI_FAILURE; | |
1889 | ||
1890 | switch (scu_get_event_code(event_code)) { | |
1891 | case SCU_EVENT_HARD_RESET_TRANSMITTED: | |
1892 | /* Link failure change state back to the starting state */ | |
d857d9a0 | 1893 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1894 | SCI_BASE_PHY_STATE_STARTING); |
6f231dda DW |
1895 | result = SCI_SUCCESS; |
1896 | break; | |
1897 | ||
1898 | default: | |
068b2c03 | 1899 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1900 | "%s: SCIC PHY 0x%p resetting state machine received " |
1901 | "unexpected event_code %x\n", | |
068b2c03 | 1902 | __func__, sci_phy, event_code); |
6f231dda DW |
1903 | |
1904 | result = SCI_FAILURE_INVALID_STATE; | |
1905 | break; | |
1906 | } | |
1907 | ||
1908 | return result; | |
1909 | } | |
1910 | ||
1911 | /* --------------------------------------------------------------------------- */ | |
1912 | ||
35173d57 | 1913 | static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[] = { |
8f31550c | 1914 | [SCI_BASE_PHY_STATE_INITIAL] = { |
d857d9a0 MT |
1915 | .start_handler = scic_sds_phy_default_start_handler, |
1916 | .stop_handler = scic_sds_phy_default_stop_handler, | |
1917 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1918 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
1919 | .frame_handler = scic_sds_phy_default_frame_handler, |
1920 | .event_handler = scic_sds_phy_default_event_handler, | |
1921 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1922 | }, |
8f31550c | 1923 | [SCI_BASE_PHY_STATE_STOPPED] = { |
d857d9a0 MT |
1924 | .start_handler = scic_sds_phy_stopped_state_start_handler, |
1925 | .stop_handler = scic_sds_phy_default_stop_handler, | |
1926 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1927 | .destruct_handler = scic_sds_phy_stopped_state_destroy_handler, | |
8f31550c DW |
1928 | .frame_handler = scic_sds_phy_default_frame_handler, |
1929 | .event_handler = scic_sds_phy_default_event_handler, | |
1930 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1931 | }, |
8f31550c | 1932 | [SCI_BASE_PHY_STATE_STARTING] = { |
d857d9a0 MT |
1933 | .start_handler = scic_sds_phy_default_start_handler, |
1934 | .stop_handler = scic_sds_phy_default_stop_handler, | |
1935 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1936 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
1937 | .frame_handler = scic_sds_phy_default_frame_handler, |
1938 | .event_handler = scic_sds_phy_default_event_handler, | |
1939 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1940 | }, |
8f31550c | 1941 | [SCI_BASE_PHY_STATE_READY] = { |
d857d9a0 MT |
1942 | .start_handler = scic_sds_phy_default_start_handler, |
1943 | .stop_handler = scic_sds_phy_ready_state_stop_handler, | |
1944 | .reset_handler = scic_sds_phy_ready_state_reset_handler, | |
1945 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
1946 | .frame_handler = scic_sds_phy_default_frame_handler, |
1947 | .event_handler = scic_sds_phy_ready_state_event_handler, | |
1948 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1949 | }, |
8f31550c | 1950 | [SCI_BASE_PHY_STATE_RESETTING] = { |
d857d9a0 MT |
1951 | .start_handler = scic_sds_phy_default_start_handler, |
1952 | .stop_handler = scic_sds_phy_default_stop_handler, | |
1953 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1954 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
1955 | .frame_handler = scic_sds_phy_default_frame_handler, |
1956 | .event_handler = scic_sds_phy_resetting_state_event_handler, | |
1957 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1958 | }, |
8f31550c | 1959 | [SCI_BASE_PHY_STATE_FINAL] = { |
d857d9a0 MT |
1960 | .start_handler = scic_sds_phy_default_start_handler, |
1961 | .stop_handler = scic_sds_phy_default_stop_handler, | |
1962 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1963 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
1964 | .frame_handler = scic_sds_phy_default_frame_handler, |
1965 | .event_handler = scic_sds_phy_default_event_handler, | |
1966 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda DW |
1967 | } |
1968 | }; | |
1969 | ||
1970 | /* | |
1971 | * **************************************************************************** | |
1972 | * * PHY STATE PRIVATE METHODS | |
1973 | * **************************************************************************** */ | |
1974 | ||
1975 | /** | |
1976 | * | |
e2023b87 | 1977 | * @sci_phy: This is the struct scic_sds_phy object to stop. |
6f231dda DW |
1978 | * |
1979 | * This method will stop the struct scic_sds_phy object. This does not reset the | |
1980 | * protocol engine it just suspends it and places it in a state where it will | |
1981 | * not cause the end device to power up. none | |
1982 | */ | |
1983 | static void scu_link_layer_stop_protocol_engine( | |
e2023b87 | 1984 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
1985 | { |
1986 | u32 scu_sas_pcfg_value; | |
1987 | u32 enable_spinup_value; | |
1988 | ||
1989 | /* Suspend the protocol engine and place it in a sata spinup hold state */ | |
bc99aa47 | 1990 | scu_sas_pcfg_value = |
e2023b87 DJ |
1991 | readl(&sci_phy->link_layer_registers->phy_configuration); |
1992 | scu_sas_pcfg_value |= | |
1993 | (SCU_SAS_PCFG_GEN_BIT(OOB_RESET) | | |
1994 | SCU_SAS_PCFG_GEN_BIT(SUSPEND_PROTOCOL_ENGINE) | | |
1995 | SCU_SAS_PCFG_GEN_BIT(SATA_SPINUP_HOLD)); | |
bc99aa47 | 1996 | writel(scu_sas_pcfg_value, |
e2023b87 | 1997 | &sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
1998 | |
1999 | /* Disable the notify enable spinup primitives */ | |
e2023b87 | 2000 | enable_spinup_value = readl(&sci_phy->link_layer_registers->notify_enable_spinup_control); |
6f231dda | 2001 | enable_spinup_value &= ~SCU_ENSPINUP_GEN_BIT(ENABLE); |
e2023b87 | 2002 | writel(enable_spinup_value, &sci_phy->link_layer_registers->notify_enable_spinup_control); |
6f231dda DW |
2003 | } |
2004 | ||
2005 | /** | |
2006 | * | |
2007 | * | |
2008 | * This method will start the OOB/SN state machine for this struct scic_sds_phy object. | |
2009 | */ | |
2010 | static void scu_link_layer_start_oob( | |
e2023b87 | 2011 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
2012 | { |
2013 | u32 scu_sas_pcfg_value; | |
2014 | ||
bc99aa47 | 2015 | scu_sas_pcfg_value = |
e2023b87 | 2016 | readl(&sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
2017 | scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE); |
2018 | scu_sas_pcfg_value &= | |
e2023b87 DJ |
2019 | ~(SCU_SAS_PCFG_GEN_BIT(OOB_RESET) | |
2020 | SCU_SAS_PCFG_GEN_BIT(HARD_RESET)); | |
bc99aa47 | 2021 | writel(scu_sas_pcfg_value, |
e2023b87 | 2022 | &sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
2023 | } |
2024 | ||
2025 | /** | |
2026 | * | |
2027 | * | |
2028 | * This method will transmit a hard reset request on the specified phy. The SCU | |
2029 | * hardware requires that we reset the OOB state machine and set the hard reset | |
2030 | * bit in the phy configuration register. We then must start OOB over with the | |
2031 | * hard reset bit set. | |
2032 | */ | |
2033 | static void scu_link_layer_tx_hard_reset( | |
e2023b87 | 2034 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
2035 | { |
2036 | u32 phy_configuration_value; | |
2037 | ||
2038 | /* | |
2039 | * SAS Phys must wait for the HARD_RESET_TX event notification to transition | |
2040 | * to the starting state. */ | |
bc99aa47 | 2041 | phy_configuration_value = |
e2023b87 | 2042 | readl(&sci_phy->link_layer_registers->phy_configuration); |
6f231dda | 2043 | phy_configuration_value |= |
e2023b87 DJ |
2044 | (SCU_SAS_PCFG_GEN_BIT(HARD_RESET) | |
2045 | SCU_SAS_PCFG_GEN_BIT(OOB_RESET)); | |
bc99aa47 | 2046 | writel(phy_configuration_value, |
e2023b87 | 2047 | &sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
2048 | |
2049 | /* Now take the OOB state machine out of reset */ | |
2050 | phy_configuration_value |= SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE); | |
2051 | phy_configuration_value &= ~SCU_SAS_PCFG_GEN_BIT(OOB_RESET); | |
bc99aa47 | 2052 | writel(phy_configuration_value, |
e2023b87 | 2053 | &sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
2054 | } |
2055 | ||
2056 | /* | |
2057 | * **************************************************************************** | |
2058 | * * PHY BASE STATE METHODS | |
2059 | * **************************************************************************** */ | |
2060 | ||
2061 | /** | |
2062 | * | |
9a0fff7b | 2063 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2064 | * |
2065 | * This method will perform the actions required by the struct scic_sds_phy on | |
2066 | * entering the SCI_BASE_PHY_STATE_INITIAL. - This function sets the state | |
2067 | * handlers for the phy object base state machine initial state. none | |
2068 | */ | |
9a0fff7b | 2069 | static void scic_sds_phy_initial_state_enter(void *object) |
6f231dda | 2070 | { |
e1e72a00 | 2071 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2072 | |
e2023b87 | 2073 | scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_INITIAL); |
6f231dda DW |
2074 | } |
2075 | ||
2076 | /** | |
2077 | * | |
9a0fff7b | 2078 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 2079 | * |
09d7da13 | 2080 | * This function will perform the actions required by the struct scic_sds_phy on |
6f231dda DW |
2081 | * entering the SCI_BASE_PHY_STATE_INITIAL. - This function sets the state |
2082 | * handlers for the phy object base state machine initial state. - The SCU | |
2083 | * hardware is requested to stop the protocol engine. none | |
2084 | */ | |
9a0fff7b | 2085 | static void scic_sds_phy_stopped_state_enter(void *object) |
6f231dda | 2086 | { |
e1e72a00 | 2087 | struct scic_sds_phy *sci_phy = object; |
09d7da13 | 2088 | struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy); |
d3757c3a | 2089 | struct isci_host *ihost = scic->ihost; |
6f231dda | 2090 | |
4d07f7f3 DJ |
2091 | /* |
2092 | * @todo We need to get to the controller to place this PE in a | |
2093 | * reset state | |
2094 | */ | |
6f231dda | 2095 | |
09d7da13 DJ |
2096 | scic_sds_phy_set_base_state_handlers(sci_phy, |
2097 | SCI_BASE_PHY_STATE_STOPPED); | |
c658b109 PM |
2098 | |
2099 | if (sci_phy->sata_timeout_timer != NULL) { | |
09d7da13 | 2100 | isci_del_timer(ihost, sci_phy->sata_timeout_timer); |
c658b109 PM |
2101 | |
2102 | sci_phy->sata_timeout_timer = NULL; | |
2103 | } | |
6f231dda | 2104 | |
c658b109 | 2105 | scu_link_layer_stop_protocol_engine(sci_phy); |
4d07f7f3 | 2106 | |
d857d9a0 | 2107 | if (sci_phy->state_machine.previous_state_id != |
4d07f7f3 | 2108 | SCI_BASE_PHY_STATE_INITIAL) |
09d7da13 DJ |
2109 | scic_sds_controller_link_down( |
2110 | scic_sds_phy_get_controller(sci_phy), | |
2111 | scic_sds_phy_get_port(sci_phy), | |
2112 | sci_phy); | |
6f231dda DW |
2113 | } |
2114 | ||
2115 | /** | |
2116 | * | |
9a0fff7b | 2117 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2118 | * |
2119 | * This method will perform the actions required by the struct scic_sds_phy on | |
2120 | * entering the SCI_BASE_PHY_STATE_STARTING. - This function sets the state | |
2121 | * handlers for the phy object base state machine starting state. - The SCU | |
2122 | * hardware is requested to start OOB/SN on this protocl engine. - The phy | |
2123 | * starting substate machine is started. - If the previous state was the ready | |
2124 | * state then the struct scic_sds_controller is informed that the phy has gone link | |
2125 | * down. none | |
2126 | */ | |
9a0fff7b | 2127 | static void scic_sds_phy_starting_state_enter(void *object) |
6f231dda | 2128 | { |
e1e72a00 | 2129 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2130 | |
e2023b87 | 2131 | scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_STARTING); |
6f231dda | 2132 | |
e2023b87 DJ |
2133 | scu_link_layer_stop_protocol_engine(sci_phy); |
2134 | scu_link_layer_start_oob(sci_phy); | |
6f231dda DW |
2135 | |
2136 | /* We don't know what kind of phy we are going to be just yet */ | |
e2023b87 DJ |
2137 | sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN; |
2138 | sci_phy->bcn_received_while_port_unassigned = false; | |
6f231dda DW |
2139 | |
2140 | /* Change over to the starting substate machine to continue */ | |
e2023b87 | 2141 | sci_base_state_machine_start(&sci_phy->starting_substate_machine); |
6f231dda | 2142 | |
e2023b87 | 2143 | if (sci_phy->state_machine.previous_state_id |
6f231dda DW |
2144 | == SCI_BASE_PHY_STATE_READY) { |
2145 | scic_sds_controller_link_down( | |
e2023b87 DJ |
2146 | scic_sds_phy_get_controller(sci_phy), |
2147 | scic_sds_phy_get_port(sci_phy), | |
2148 | sci_phy | |
6f231dda DW |
2149 | ); |
2150 | } | |
2151 | } | |
2152 | ||
2153 | /** | |
2154 | * | |
9a0fff7b | 2155 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2156 | * |
2157 | * This method will perform the actions required by the struct scic_sds_phy on | |
2158 | * entering the SCI_BASE_PHY_STATE_READY. - This function sets the state | |
2159 | * handlers for the phy object base state machine ready state. - The SCU | |
2160 | * hardware protocol engine is resumed. - The struct scic_sds_controller is informed | |
2161 | * that the phy object has gone link up. none | |
2162 | */ | |
9a0fff7b | 2163 | static void scic_sds_phy_ready_state_enter(void *object) |
6f231dda | 2164 | { |
e1e72a00 | 2165 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2166 | |
e2023b87 | 2167 | scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_READY); |
6f231dda DW |
2168 | |
2169 | scic_sds_controller_link_up( | |
e2023b87 DJ |
2170 | scic_sds_phy_get_controller(sci_phy), |
2171 | scic_sds_phy_get_port(sci_phy), | |
2172 | sci_phy | |
6f231dda DW |
2173 | ); |
2174 | } | |
2175 | ||
2176 | /** | |
2177 | * | |
9a0fff7b | 2178 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2179 | * |
2180 | * This method will perform the actions required by the struct scic_sds_phy on exiting | |
2181 | * the SCI_BASE_PHY_STATE_INITIAL. This function suspends the SCU hardware | |
2182 | * protocol engine represented by this struct scic_sds_phy object. none | |
2183 | */ | |
9a0fff7b | 2184 | static void scic_sds_phy_ready_state_exit(void *object) |
6f231dda | 2185 | { |
e1e72a00 | 2186 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2187 | |
e2023b87 | 2188 | scic_sds_phy_suspend(sci_phy); |
6f231dda DW |
2189 | } |
2190 | ||
2191 | /** | |
2192 | * | |
9a0fff7b | 2193 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2194 | * |
2195 | * This method will perform the actions required by the struct scic_sds_phy on | |
2196 | * entering the SCI_BASE_PHY_STATE_RESETTING. - This function sets the state | |
2197 | * handlers for the phy object base state machine resetting state. none | |
2198 | */ | |
9a0fff7b | 2199 | static void scic_sds_phy_resetting_state_enter(void *object) |
6f231dda | 2200 | { |
e1e72a00 | 2201 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2202 | |
e2023b87 | 2203 | scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_RESETTING); |
6f231dda DW |
2204 | |
2205 | /* | |
2206 | * The phy is being reset, therefore deactivate it from the port. | |
2207 | * In the resetting state we don't notify the user regarding | |
2208 | * link up and link down notifications. */ | |
e2023b87 | 2209 | scic_sds_port_deactivate_phy(sci_phy->owning_port, sci_phy, false); |
6f231dda | 2210 | |
e2023b87 DJ |
2211 | if (sci_phy->protocol == SCIC_SDS_PHY_PROTOCOL_SAS) { |
2212 | scu_link_layer_tx_hard_reset(sci_phy); | |
6f231dda DW |
2213 | } else { |
2214 | /* | |
e2023b87 DJ |
2215 | * The SCU does not need to have a discrete reset state so |
2216 | * just go back to the starting state. | |
2217 | */ | |
2218 | sci_base_state_machine_change_state( | |
2219 | &sci_phy->state_machine, | |
2220 | SCI_BASE_PHY_STATE_STARTING); | |
6f231dda DW |
2221 | } |
2222 | } | |
2223 | ||
2224 | /** | |
2225 | * | |
9a0fff7b | 2226 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2227 | * |
2228 | * This method will perform the actions required by the struct scic_sds_phy on | |
2229 | * entering the SCI_BASE_PHY_STATE_FINAL. - This function sets the state | |
2230 | * handlers for the phy object base state machine final state. none | |
2231 | */ | |
9a0fff7b | 2232 | static void scic_sds_phy_final_state_enter(void *object) |
6f231dda | 2233 | { |
e1e72a00 | 2234 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2235 | |
e2023b87 | 2236 | scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_FINAL); |
6f231dda DW |
2237 | |
2238 | /* Nothing to do here */ | |
2239 | } | |
2240 | ||
2241 | /* --------------------------------------------------------------------------- */ | |
2242 | ||
35173d57 | 2243 | static const struct sci_base_state scic_sds_phy_state_table[] = { |
6f231dda DW |
2244 | [SCI_BASE_PHY_STATE_INITIAL] = { |
2245 | .enter_state = scic_sds_phy_initial_state_enter, | |
2246 | }, | |
2247 | [SCI_BASE_PHY_STATE_STOPPED] = { | |
2248 | .enter_state = scic_sds_phy_stopped_state_enter, | |
2249 | }, | |
2250 | [SCI_BASE_PHY_STATE_STARTING] = { | |
2251 | .enter_state = scic_sds_phy_starting_state_enter, | |
2252 | }, | |
2253 | [SCI_BASE_PHY_STATE_READY] = { | |
2254 | .enter_state = scic_sds_phy_ready_state_enter, | |
2255 | .exit_state = scic_sds_phy_ready_state_exit, | |
2256 | }, | |
2257 | [SCI_BASE_PHY_STATE_RESETTING] = { | |
2258 | .enter_state = scic_sds_phy_resetting_state_enter, | |
2259 | }, | |
2260 | [SCI_BASE_PHY_STATE_FINAL] = { | |
2261 | .enter_state = scic_sds_phy_final_state_enter, | |
2262 | }, | |
2263 | }; | |
2264 | ||
35173d57 DW |
2265 | void scic_sds_phy_construct(struct scic_sds_phy *sci_phy, |
2266 | struct scic_sds_port *owning_port, u8 phy_index) | |
2267 | { | |
d857d9a0 | 2268 | sci_base_state_machine_construct(&sci_phy->state_machine, |
e1e72a00 | 2269 | sci_phy, |
d857d9a0 MT |
2270 | scic_sds_phy_state_table, |
2271 | SCI_BASE_PHY_STATE_INITIAL); | |
2272 | ||
2273 | sci_base_state_machine_start(&sci_phy->state_machine); | |
35173d57 DW |
2274 | |
2275 | /* Copy the rest of the input data to our locals */ | |
2276 | sci_phy->owning_port = owning_port; | |
2277 | sci_phy->phy_index = phy_index; | |
2278 | sci_phy->bcn_received_while_port_unassigned = false; | |
2279 | sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN; | |
2280 | sci_phy->link_layer_registers = NULL; | |
26bace34 | 2281 | sci_phy->max_negotiated_speed = SAS_LINK_RATE_UNKNOWN; |
35173d57 DW |
2282 | sci_phy->sata_timeout_timer = NULL; |
2283 | ||
35173d57 DW |
2284 | /* Initialize the the substate machines */ |
2285 | sci_base_state_machine_construct(&sci_phy->starting_substate_machine, | |
e1e72a00 | 2286 | sci_phy, |
35173d57 DW |
2287 | scic_sds_phy_starting_substates, |
2288 | SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL); | |
2289 | } |