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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 DJ |
438 | struct sas_identify_frame *iaf; |
439 | ||
1dea554f | 440 | iaf = &sci_phy->phy_type.sas_id_frame; |
4b7ebd05 | 441 | memcpy(sas_address, iaf->sas_addr, SAS_ADDR_SIZE); |
6f231dda DW |
442 | } |
443 | ||
6f231dda | 444 | void scic_sds_phy_get_protocols( |
e2023b87 | 445 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
446 | struct sci_sas_identify_address_frame_protocols *protocols) |
447 | { | |
bc99aa47 | 448 | protocols->u.all = |
e2023b87 | 449 | (u16)(readl(&sci_phy-> |
bc99aa47 CH |
450 | link_layer_registers->transmit_identification) & |
451 | 0x0000FFFF); | |
6f231dda DW |
452 | } |
453 | ||
6f231dda | 454 | void scic_sds_phy_get_attached_phy_protocols( |
e2023b87 | 455 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
456 | struct sci_sas_identify_address_frame_protocols *protocols) |
457 | { | |
458 | protocols->u.all = 0; | |
459 | ||
e2023b87 | 460 | if (sci_phy->protocol == SCIC_SDS_PHY_PROTOCOL_SAS) { |
4b7ebd05 DJ |
461 | struct sas_identify_frame *iaf; |
462 | ||
1dea554f | 463 | iaf = &sci_phy->phy_type.sas_id_frame; |
4b7ebd05 | 464 | memcpy(&protocols->u.all, &iaf->initiator_bits, 2); |
e2023b87 | 465 | } else if (sci_phy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) { |
6f231dda DW |
466 | protocols->u.bits.stp_target = 1; |
467 | } | |
468 | } | |
469 | ||
470 | /* | |
471 | * ***************************************************************************** | |
472 | * * SCIC SDS PHY Handler Redirects | |
473 | * ***************************************************************************** */ | |
474 | ||
475 | /** | |
476 | * This method will attempt to start the phy object. This request is only valid | |
477 | * when the phy is in the stopped state | |
4d07f7f3 | 478 | * @sci_phy: |
6f231dda DW |
479 | * |
480 | * enum sci_status | |
481 | */ | |
4d07f7f3 | 482 | enum sci_status scic_sds_phy_start(struct scic_sds_phy *sci_phy) |
6f231dda | 483 | { |
d857d9a0 | 484 | return sci_phy->state_handlers->start_handler(sci_phy); |
6f231dda DW |
485 | } |
486 | ||
487 | /** | |
488 | * This method will attempt to stop the phy object. | |
4d07f7f3 | 489 | * @sci_phy: |
6f231dda | 490 | * |
4d07f7f3 DJ |
491 | * enum sci_status SCI_SUCCESS if the phy is going to stop SCI_INVALID_STATE |
492 | * if the phy is not in a valid state to stop | |
6f231dda | 493 | */ |
4d07f7f3 | 494 | enum sci_status scic_sds_phy_stop(struct scic_sds_phy *sci_phy) |
6f231dda | 495 | { |
d857d9a0 | 496 | return sci_phy->state_handlers->stop_handler(sci_phy); |
6f231dda DW |
497 | } |
498 | ||
499 | /** | |
500 | * This method will attempt to reset the phy. This request is only valid when | |
501 | * the phy is in an ready state | |
e2023b87 | 502 | * @sci_phy: |
6f231dda DW |
503 | * |
504 | * enum sci_status | |
505 | */ | |
506 | enum sci_status scic_sds_phy_reset( | |
e2023b87 | 507 | struct scic_sds_phy *sci_phy) |
6f231dda | 508 | { |
e2023b87 | 509 | return sci_phy->state_handlers->reset_handler(sci_phy); |
6f231dda DW |
510 | } |
511 | ||
512 | /** | |
513 | * This method will process the event code received. | |
e2023b87 | 514 | * @sci_phy: |
6f231dda DW |
515 | * @event_code: |
516 | * | |
517 | * enum sci_status | |
518 | */ | |
519 | enum sci_status scic_sds_phy_event_handler( | |
e2023b87 | 520 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
521 | u32 event_code) |
522 | { | |
e2023b87 | 523 | return sci_phy->state_handlers->event_handler(sci_phy, event_code); |
6f231dda DW |
524 | } |
525 | ||
526 | /** | |
527 | * This method will process the frame index received. | |
e2023b87 | 528 | * @sci_phy: |
6f231dda DW |
529 | * @frame_index: |
530 | * | |
531 | * enum sci_status | |
532 | */ | |
533 | enum sci_status scic_sds_phy_frame_handler( | |
e2023b87 | 534 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
535 | u32 frame_index) |
536 | { | |
e2023b87 | 537 | return sci_phy->state_handlers->frame_handler(sci_phy, frame_index); |
6f231dda DW |
538 | } |
539 | ||
540 | /** | |
541 | * This method will give the phy permission to consume power | |
e2023b87 | 542 | * @sci_phy: |
6f231dda DW |
543 | * |
544 | * enum sci_status | |
545 | */ | |
546 | enum sci_status scic_sds_phy_consume_power_handler( | |
e2023b87 | 547 | struct scic_sds_phy *sci_phy) |
6f231dda | 548 | { |
e2023b87 | 549 | return sci_phy->state_handlers->consume_power_handler(sci_phy); |
6f231dda DW |
550 | } |
551 | ||
552 | /* | |
553 | * ***************************************************************************** | |
554 | * * SCIC PHY Public Methods | |
555 | * ***************************************************************************** */ | |
556 | ||
557 | ||
558 | enum sci_status scic_sas_phy_get_properties( | |
559 | struct scic_sds_phy *sci_phy, | |
560 | struct scic_sas_phy_properties *properties) | |
561 | { | |
562 | if (sci_phy->protocol == SCIC_SDS_PHY_PROTOCOL_SAS) { | |
4b7ebd05 | 563 | memcpy(&properties->rcvd_iaf, |
1dea554f | 564 | &sci_phy->phy_type.sas_id_frame, |
4b7ebd05 | 565 | sizeof(struct sas_identify_frame)); |
6f231dda | 566 | |
ed0e2483 | 567 | properties->rcvd_cap.all = |
bc99aa47 | 568 | readl(&sci_phy->link_layer_registers->receive_phycap); |
6f231dda DW |
569 | |
570 | return SCI_SUCCESS; | |
571 | } | |
572 | ||
573 | return SCI_FAILURE; | |
574 | } | |
575 | ||
576 | ||
577 | enum sci_status scic_sata_phy_get_properties( | |
578 | struct scic_sds_phy *sci_phy, | |
579 | struct scic_sata_phy_properties *properties) | |
580 | { | |
581 | if (sci_phy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) { | |
f2f30080 | 582 | memcpy(&properties->signature_fis, |
1dea554f | 583 | &sci_phy->phy_type.sata_sig_fis, |
f2f30080 | 584 | sizeof(struct dev_to_host_fis)); |
6f231dda DW |
585 | |
586 | /* / @todo add support for port selectors. */ | |
587 | properties->is_port_selector_present = false; | |
588 | ||
589 | return SCI_SUCCESS; | |
590 | } | |
591 | ||
592 | return SCI_FAILURE; | |
593 | } | |
594 | ||
595 | /* | |
596 | * ***************************************************************************** | |
597 | * * SCIC SDS PHY HELPER FUNCTIONS | |
598 | * ***************************************************************************** */ | |
599 | ||
600 | ||
601 | /** | |
602 | * | |
e2023b87 | 603 | * @sci_phy: The phy object that received SAS PHY DETECTED. |
6f231dda DW |
604 | * |
605 | * This method continues the link training for the phy as if it were a SAS PHY | |
606 | * instead of a SATA PHY. This is done because the completion queue had a SAS | |
607 | * PHY DETECTED event when the state machine was expecting a SATA PHY event. | |
608 | * none | |
609 | */ | |
610 | static void scic_sds_phy_start_sas_link_training( | |
e2023b87 | 611 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
612 | { |
613 | u32 phy_control; | |
614 | ||
bc99aa47 | 615 | phy_control = |
e2023b87 | 616 | readl(&sci_phy->link_layer_registers->phy_configuration); |
6f231dda | 617 | phy_control |= SCU_SAS_PCFG_GEN_BIT(SATA_SPINUP_HOLD); |
bc99aa47 | 618 | writel(phy_control, |
e2023b87 | 619 | &sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
620 | |
621 | sci_base_state_machine_change_state( | |
e2023b87 | 622 | &sci_phy->starting_substate_machine, |
6f231dda DW |
623 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN |
624 | ); | |
625 | ||
e2023b87 | 626 | sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SAS; |
6f231dda DW |
627 | } |
628 | ||
629 | /** | |
630 | * | |
e2023b87 | 631 | * @sci_phy: The phy object that received a SATA SPINUP HOLD event |
6f231dda DW |
632 | * |
633 | * This method continues the link training for the phy as if it were a SATA PHY | |
634 | * instead of a SAS PHY. This is done because the completion queue had a SATA | |
635 | * SPINUP HOLD event when the state machine was expecting a SAS PHY event. none | |
636 | */ | |
637 | static void scic_sds_phy_start_sata_link_training( | |
e2023b87 | 638 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
639 | { |
640 | sci_base_state_machine_change_state( | |
e2023b87 | 641 | &sci_phy->starting_substate_machine, |
6f231dda DW |
642 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER |
643 | ); | |
644 | ||
e2023b87 | 645 | sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA; |
6f231dda DW |
646 | } |
647 | ||
648 | /** | |
068b2c03 DW |
649 | * scic_sds_phy_complete_link_training - perform processing common to |
650 | * all protocols upon completion of link training. | |
651 | * @sci_phy: This parameter specifies the phy object for which link training | |
6f231dda DW |
652 | * has completed. |
653 | * @max_link_rate: This parameter specifies the maximum link rate to be | |
654 | * associated with this phy. | |
655 | * @next_state: This parameter specifies the next state for the phy's starting | |
656 | * sub-state machine. | |
657 | * | |
658 | */ | |
659 | static void scic_sds_phy_complete_link_training( | |
068b2c03 | 660 | struct scic_sds_phy *sci_phy, |
26bace34 | 661 | enum sas_linkrate max_link_rate, |
6f231dda DW |
662 | u32 next_state) |
663 | { | |
068b2c03 | 664 | sci_phy->max_negotiated_speed = max_link_rate; |
6f231dda | 665 | |
068b2c03 DW |
666 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
667 | next_state); | |
6f231dda DW |
668 | } |
669 | ||
6f231dda | 670 | static void scic_sds_phy_restart_starting_state( |
068b2c03 | 671 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
672 | { |
673 | /* Stop the current substate machine */ | |
068b2c03 | 674 | sci_base_state_machine_stop(&sci_phy->starting_substate_machine); |
6f231dda DW |
675 | |
676 | /* Re-enter the base state machine starting state */ | |
d857d9a0 | 677 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 678 | SCI_BASE_PHY_STATE_STARTING); |
6f231dda DW |
679 | } |
680 | ||
c658b109 PM |
681 | /* **************************************************************************** |
682 | * SCIC SDS PHY general handlers | |
683 | ************************************************************************** */ | |
684 | static enum sci_status scic_sds_phy_starting_substate_general_stop_handler( | |
d857d9a0 | 685 | struct scic_sds_phy *phy) |
c658b109 | 686 | { |
d857d9a0 | 687 | sci_base_state_machine_stop(&phy->starting_substate_machine); |
c658b109 PM |
688 | |
689 | sci_base_state_machine_change_state(&phy->state_machine, | |
690 | SCI_BASE_PHY_STATE_STOPPED); | |
691 | ||
692 | return SCI_SUCCESS; | |
693 | } | |
694 | ||
6f231dda DW |
695 | /* |
696 | * ***************************************************************************** | |
697 | * * SCIC SDS PHY EVENT_HANDLERS | |
698 | * ***************************************************************************** */ | |
699 | ||
700 | /** | |
701 | * | |
702 | * @phy: This struct scic_sds_phy object which has received an event. | |
703 | * @event_code: This is the event code which the phy object is to decode. | |
704 | * | |
705 | * This method is called when an event notification is received for the phy | |
706 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SPEED_EN. - | |
707 | * decode the event - sas phy detected causes a state transition to the wait | |
708 | * for speed event notification. - any other events log a warning message and | |
709 | * set a failure status enum sci_status SCI_SUCCESS on any valid event notification | |
710 | * SCI_FAILURE on any unexpected event notifation | |
711 | */ | |
712 | static enum sci_status scic_sds_phy_starting_substate_await_ossp_event_handler( | |
e2023b87 | 713 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
714 | u32 event_code) |
715 | { | |
716 | u32 result = SCI_SUCCESS; | |
717 | ||
718 | switch (scu_get_event_code(event_code)) { | |
719 | case SCU_EVENT_SAS_PHY_DETECTED: | |
e2023b87 DJ |
720 | scic_sds_phy_start_sas_link_training(sci_phy); |
721 | sci_phy->is_in_link_training = true; | |
6f231dda DW |
722 | break; |
723 | ||
724 | case SCU_EVENT_SATA_SPINUP_HOLD: | |
e2023b87 DJ |
725 | scic_sds_phy_start_sata_link_training(sci_phy); |
726 | sci_phy->is_in_link_training = true; | |
6f231dda DW |
727 | break; |
728 | ||
729 | default: | |
e2023b87 | 730 | dev_dbg(sciphy_to_dev(sci_phy), |
d7628d05 DJ |
731 | "%s: PHY starting substate machine received " |
732 | "unexpected event_code %x\n", | |
733 | __func__, | |
734 | event_code); | |
6f231dda DW |
735 | |
736 | result = SCI_FAILURE; | |
737 | break; | |
738 | } | |
739 | ||
740 | return result; | |
741 | } | |
742 | ||
743 | /** | |
744 | * | |
745 | * @phy: This struct scic_sds_phy object which has received an event. | |
746 | * @event_code: This is the event code which the phy object is to decode. | |
747 | * | |
748 | * This method is called when an event notification is received for the phy | |
749 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SPEED_EN. - | |
750 | * decode the event - sas phy detected returns us back to this state. - speed | |
751 | * event detected causes a state transition to the wait for iaf. - identify | |
752 | * timeout is an un-expected event and the state machine is restarted. - link | |
753 | * failure events restart the starting state machine - any other events log a | |
754 | * warning message and set a failure status enum sci_status SCI_SUCCESS on any valid | |
755 | * event notification SCI_FAILURE on any unexpected event notifation | |
756 | */ | |
757 | static enum sci_status scic_sds_phy_starting_substate_await_sas_phy_speed_event_handler( | |
e2023b87 | 758 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
759 | u32 event_code) |
760 | { | |
761 | u32 result = SCI_SUCCESS; | |
762 | ||
763 | switch (scu_get_event_code(event_code)) { | |
764 | case SCU_EVENT_SAS_PHY_DETECTED: | |
765 | /* | |
766 | * Why is this being reported again by the controller? | |
767 | * We would re-enter this state so just stay here */ | |
768 | break; | |
769 | ||
770 | case SCU_EVENT_SAS_15: | |
771 | case SCU_EVENT_SAS_15_SSC: | |
772 | scic_sds_phy_complete_link_training( | |
e2023b87 DJ |
773 | sci_phy, |
774 | SAS_LINK_RATE_1_5_GBPS, | |
775 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF); | |
6f231dda DW |
776 | break; |
777 | ||
778 | case SCU_EVENT_SAS_30: | |
779 | case SCU_EVENT_SAS_30_SSC: | |
780 | scic_sds_phy_complete_link_training( | |
e2023b87 DJ |
781 | sci_phy, |
782 | SAS_LINK_RATE_3_0_GBPS, | |
783 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF); | |
6f231dda DW |
784 | break; |
785 | ||
786 | case SCU_EVENT_SAS_60: | |
787 | case SCU_EVENT_SAS_60_SSC: | |
788 | scic_sds_phy_complete_link_training( | |
e2023b87 DJ |
789 | sci_phy, |
790 | SAS_LINK_RATE_6_0_GBPS, | |
791 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF); | |
6f231dda DW |
792 | break; |
793 | ||
794 | case SCU_EVENT_SATA_SPINUP_HOLD: | |
795 | /* | |
796 | * We were doing SAS PHY link training and received a SATA PHY event | |
797 | * continue OOB/SN as if this were a SATA PHY */ | |
e2023b87 | 798 | scic_sds_phy_start_sata_link_training(sci_phy); |
6f231dda DW |
799 | break; |
800 | ||
801 | case SCU_EVENT_LINK_FAILURE: | |
802 | /* Link failure change state back to the starting state */ | |
e2023b87 | 803 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
804 | break; |
805 | ||
806 | default: | |
e2023b87 | 807 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
808 | "%s: PHY starting substate machine received " |
809 | "unexpected event_code %x\n", | |
810 | __func__, | |
811 | event_code); | |
812 | ||
813 | result = SCI_FAILURE; | |
814 | break; | |
815 | } | |
816 | ||
817 | return result; | |
818 | } | |
819 | ||
820 | /** | |
821 | * | |
822 | * @phy: This struct scic_sds_phy object which has received an event. | |
823 | * @event_code: This is the event code which the phy object is to decode. | |
824 | * | |
825 | * This method is called when an event notification is received for the phy | |
826 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF. - | |
827 | * decode the event - sas phy detected event backs up the state machine to the | |
828 | * await speed notification. - identify timeout is an un-expected event and the | |
829 | * state machine is restarted. - link failure events restart the starting state | |
830 | * machine - any other events log a warning message and set a failure status | |
831 | * enum sci_status SCI_SUCCESS on any valid event notification SCI_FAILURE on any | |
832 | * unexpected event notifation | |
833 | */ | |
834 | static enum sci_status scic_sds_phy_starting_substate_await_iaf_uf_event_handler( | |
e2023b87 | 835 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
836 | u32 event_code) |
837 | { | |
838 | u32 result = SCI_SUCCESS; | |
839 | ||
840 | switch (scu_get_event_code(event_code)) { | |
841 | case SCU_EVENT_SAS_PHY_DETECTED: | |
842 | /* Backup the state machine */ | |
e2023b87 | 843 | scic_sds_phy_start_sas_link_training(sci_phy); |
6f231dda DW |
844 | break; |
845 | ||
846 | case SCU_EVENT_SATA_SPINUP_HOLD: | |
847 | /* | |
848 | * We were doing SAS PHY link training and received a SATA PHY event | |
849 | * continue OOB/SN as if this were a SATA PHY */ | |
e2023b87 | 850 | scic_sds_phy_start_sata_link_training(sci_phy); |
6f231dda DW |
851 | break; |
852 | ||
853 | case SCU_EVENT_RECEIVED_IDENTIFY_TIMEOUT: | |
854 | case SCU_EVENT_LINK_FAILURE: | |
855 | case SCU_EVENT_HARD_RESET_RECEIVED: | |
856 | /* Start the oob/sn state machine over again */ | |
e2023b87 | 857 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
858 | break; |
859 | ||
860 | default: | |
e2023b87 | 861 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
862 | "%s: PHY starting substate machine received " |
863 | "unexpected event_code %x\n", | |
864 | __func__, | |
865 | event_code); | |
866 | ||
867 | result = SCI_FAILURE; | |
868 | break; | |
869 | } | |
870 | ||
871 | return result; | |
872 | } | |
873 | ||
874 | /** | |
875 | * | |
876 | * @phy: This struct scic_sds_phy object which has received an event. | |
877 | * @event_code: This is the event code which the phy object is to decode. | |
878 | * | |
879 | * This method is called when an event notification is received for the phy | |
880 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_POWER. - | |
881 | * decode the event - link failure events restart the starting state machine - | |
882 | * any other events log a warning message and set a failure status enum sci_status | |
883 | * SCI_SUCCESS on a link failure event SCI_FAILURE on any unexpected event | |
884 | * notifation | |
885 | */ | |
886 | static enum sci_status scic_sds_phy_starting_substate_await_sas_power_event_handler( | |
e2023b87 | 887 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
888 | u32 event_code) |
889 | { | |
890 | u32 result = SCI_SUCCESS; | |
891 | ||
892 | switch (scu_get_event_code(event_code)) { | |
893 | case SCU_EVENT_LINK_FAILURE: | |
894 | /* Link failure change state back to the starting state */ | |
e2023b87 | 895 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
896 | break; |
897 | ||
898 | default: | |
e2023b87 | 899 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
900 | "%s: PHY starting substate machine received unexpected " |
901 | "event_code %x\n", | |
902 | __func__, | |
903 | event_code); | |
904 | ||
905 | result = SCI_FAILURE; | |
906 | break; | |
907 | } | |
908 | ||
909 | return result; | |
910 | } | |
911 | ||
912 | /** | |
913 | * | |
914 | * @phy: This struct scic_sds_phy object which has received an event. | |
915 | * @event_code: This is the event code which the phy object is to decode. | |
916 | * | |
917 | * This method is called when an event notification is received for the phy | |
918 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER. - | |
919 | * decode the event - link failure events restart the starting state machine - | |
920 | * sata spinup hold events are ignored since they are expected - any other | |
921 | * events log a warning message and set a failure status enum sci_status SCI_SUCCESS | |
922 | * on a link failure event SCI_FAILURE on any unexpected event notifation | |
923 | */ | |
924 | static enum sci_status scic_sds_phy_starting_substate_await_sata_power_event_handler( | |
e2023b87 | 925 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
926 | u32 event_code) |
927 | { | |
928 | u32 result = SCI_SUCCESS; | |
929 | ||
930 | switch (scu_get_event_code(event_code)) { | |
931 | case SCU_EVENT_LINK_FAILURE: | |
932 | /* Link failure change state back to the starting state */ | |
e2023b87 | 933 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
934 | break; |
935 | ||
936 | case SCU_EVENT_SATA_SPINUP_HOLD: | |
937 | /* These events are received every 10ms and are expected while in this state */ | |
938 | break; | |
939 | ||
940 | case SCU_EVENT_SAS_PHY_DETECTED: | |
941 | /* | |
942 | * There has been a change in the phy type before OOB/SN for the | |
943 | * SATA finished start down the SAS link traning path. */ | |
e2023b87 | 944 | scic_sds_phy_start_sas_link_training(sci_phy); |
6f231dda DW |
945 | break; |
946 | ||
947 | default: | |
e2023b87 | 948 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
949 | "%s: PHY starting substate machine received " |
950 | "unexpected event_code %x\n", | |
951 | __func__, | |
952 | event_code); | |
953 | ||
954 | result = SCI_FAILURE; | |
955 | break; | |
956 | } | |
957 | ||
958 | return result; | |
959 | } | |
960 | ||
961 | /** | |
068b2c03 | 962 | * scic_sds_phy_starting_substate_await_sata_phy_event_handler - |
6f231dda DW |
963 | * @phy: This struct scic_sds_phy object which has received an event. |
964 | * @event_code: This is the event code which the phy object is to decode. | |
965 | * | |
966 | * This method is called when an event notification is received for the phy | |
967 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN. - | |
968 | * decode the event - link failure events restart the starting state machine - | |
969 | * sata spinup hold events are ignored since they are expected - sata phy | |
970 | * detected event change to the wait speed event - any other events log a | |
971 | * warning message and set a failure status enum sci_status SCI_SUCCESS on a link | |
972 | * failure event SCI_FAILURE on any unexpected event notifation | |
973 | */ | |
974 | static enum sci_status scic_sds_phy_starting_substate_await_sata_phy_event_handler( | |
068b2c03 | 975 | struct scic_sds_phy *sci_phy, u32 event_code) |
6f231dda DW |
976 | { |
977 | u32 result = SCI_SUCCESS; | |
978 | ||
979 | switch (scu_get_event_code(event_code)) { | |
980 | case SCU_EVENT_LINK_FAILURE: | |
981 | /* Link failure change state back to the starting state */ | |
068b2c03 | 982 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
983 | break; |
984 | ||
985 | case SCU_EVENT_SATA_SPINUP_HOLD: | |
068b2c03 DW |
986 | /* These events might be received since we dont know how many may be in |
987 | * the completion queue while waiting for power | |
988 | */ | |
6f231dda DW |
989 | break; |
990 | ||
991 | case SCU_EVENT_SATA_PHY_DETECTED: | |
068b2c03 | 992 | sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA; |
6f231dda DW |
993 | |
994 | /* We have received the SATA PHY notification change state */ | |
068b2c03 DW |
995 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
996 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN); | |
6f231dda DW |
997 | break; |
998 | ||
999 | case SCU_EVENT_SAS_PHY_DETECTED: | |
068b2c03 DW |
1000 | /* There has been a change in the phy type before OOB/SN for the |
1001 | * SATA finished start down the SAS link traning path. | |
1002 | */ | |
1003 | scic_sds_phy_start_sas_link_training(sci_phy); | |
6f231dda DW |
1004 | break; |
1005 | ||
1006 | default: | |
068b2c03 | 1007 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1008 | "%s: PHY starting substate machine received " |
1009 | "unexpected event_code %x\n", | |
1010 | __func__, | |
1011 | event_code); | |
1012 | ||
1013 | result = SCI_FAILURE; | |
1014 | break; | |
1015 | } | |
1016 | ||
1017 | return result; | |
1018 | } | |
1019 | ||
1020 | /** | |
1021 | * | |
1022 | * @phy: This struct scic_sds_phy object which has received an event. | |
1023 | * @event_code: This is the event code which the phy object is to decode. | |
1024 | * | |
1025 | * This method is called when an event notification is received for the phy | |
1026 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. | |
1027 | * - decode the event - sata phy detected returns us back to this state. - | |
1028 | * speed event detected causes a state transition to the wait for signature. - | |
1029 | * link failure events restart the starting state machine - any other events | |
1030 | * log a warning message and set a failure status enum sci_status SCI_SUCCESS on any | |
1031 | * valid event notification SCI_FAILURE on any unexpected event notifation | |
1032 | */ | |
1033 | static enum sci_status scic_sds_phy_starting_substate_await_sata_speed_event_handler( | |
e2023b87 | 1034 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
1035 | u32 event_code) |
1036 | { | |
1037 | u32 result = SCI_SUCCESS; | |
1038 | ||
1039 | switch (scu_get_event_code(event_code)) { | |
1040 | case SCU_EVENT_SATA_PHY_DETECTED: | |
1041 | /* | |
1042 | * The hardware reports multiple SATA PHY detected events | |
1043 | * ignore the extras */ | |
1044 | break; | |
1045 | ||
1046 | case SCU_EVENT_SATA_15: | |
1047 | case SCU_EVENT_SATA_15_SSC: | |
1048 | scic_sds_phy_complete_link_training( | |
e2023b87 | 1049 | sci_phy, |
26bace34 | 1050 | SAS_LINK_RATE_1_5_GBPS, |
e2023b87 | 1051 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); |
6f231dda DW |
1052 | break; |
1053 | ||
1054 | case SCU_EVENT_SATA_30: | |
1055 | case SCU_EVENT_SATA_30_SSC: | |
1056 | scic_sds_phy_complete_link_training( | |
e2023b87 | 1057 | sci_phy, |
26bace34 | 1058 | SAS_LINK_RATE_3_0_GBPS, |
e2023b87 | 1059 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); |
6f231dda DW |
1060 | break; |
1061 | ||
1062 | case SCU_EVENT_SATA_60: | |
1063 | case SCU_EVENT_SATA_60_SSC: | |
1064 | scic_sds_phy_complete_link_training( | |
e2023b87 | 1065 | sci_phy, |
26bace34 | 1066 | SAS_LINK_RATE_6_0_GBPS, |
e2023b87 | 1067 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); |
6f231dda DW |
1068 | break; |
1069 | ||
1070 | case SCU_EVENT_LINK_FAILURE: | |
1071 | /* Link failure change state back to the starting state */ | |
e2023b87 | 1072 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
1073 | break; |
1074 | ||
1075 | case SCU_EVENT_SAS_PHY_DETECTED: | |
1076 | /* | |
1077 | * There has been a change in the phy type before OOB/SN for the | |
1078 | * SATA finished start down the SAS link traning path. */ | |
e2023b87 | 1079 | scic_sds_phy_start_sas_link_training(sci_phy); |
6f231dda DW |
1080 | break; |
1081 | ||
1082 | default: | |
e2023b87 | 1083 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1084 | "%s: PHY starting substate machine received " |
1085 | "unexpected event_code %x\n", | |
1086 | __func__, | |
1087 | event_code); | |
1088 | ||
1089 | result = SCI_FAILURE; | |
1090 | break; | |
1091 | } | |
1092 | ||
1093 | return result; | |
1094 | } | |
1095 | ||
1096 | /** | |
068b2c03 | 1097 | * scic_sds_phy_starting_substate_await_sig_fis_event_handler - |
6f231dda DW |
1098 | * @phy: This struct scic_sds_phy object which has received an event. |
1099 | * @event_code: This is the event code which the phy object is to decode. | |
1100 | * | |
1101 | * This method is called when an event notification is received for the phy | |
1102 | * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - | |
1103 | * decode the event - sas phy detected event backs up the state machine to the | |
1104 | * await speed notification. - identify timeout is an un-expected event and the | |
1105 | * state machine is restarted. - link failure events restart the starting state | |
1106 | * machine - any other events log a warning message and set a failure status | |
1107 | * enum sci_status SCI_SUCCESS on any valid event notification SCI_FAILURE on any | |
1108 | * unexpected event notifation | |
1109 | */ | |
1110 | static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_event_handler( | |
068b2c03 | 1111 | struct scic_sds_phy *sci_phy, u32 event_code) |
6f231dda DW |
1112 | { |
1113 | u32 result = SCI_SUCCESS; | |
1114 | ||
1115 | switch (scu_get_event_code(event_code)) { | |
1116 | case SCU_EVENT_SATA_PHY_DETECTED: | |
1117 | /* Backup the state machine */ | |
068b2c03 DW |
1118 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1119 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN); | |
6f231dda DW |
1120 | break; |
1121 | ||
1122 | case SCU_EVENT_LINK_FAILURE: | |
1123 | /* Link failure change state back to the starting state */ | |
068b2c03 | 1124 | scic_sds_phy_restart_starting_state(sci_phy); |
6f231dda DW |
1125 | break; |
1126 | ||
1127 | default: | |
068b2c03 | 1128 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1129 | "%s: PHY starting substate machine received " |
1130 | "unexpected event_code %x\n", | |
1131 | __func__, | |
1132 | event_code); | |
1133 | ||
1134 | result = SCI_FAILURE; | |
1135 | break; | |
1136 | } | |
1137 | ||
1138 | return result; | |
1139 | } | |
1140 | ||
1141 | ||
1142 | /* | |
1143 | * ***************************************************************************** | |
1144 | * * SCIC SDS PHY FRAME_HANDLERS | |
1145 | * ***************************************************************************** */ | |
1146 | ||
1147 | /** | |
1148 | * | |
1149 | * @phy: This is struct scic_sds_phy object which is being requested to decode the | |
1150 | * frame data. | |
1151 | * @frame_index: This is the index of the unsolicited frame which was received | |
1152 | * for this phy. | |
1153 | * | |
1154 | * This method decodes the unsolicited frame when the struct scic_sds_phy is in the | |
1155 | * SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF. - Get the UF Header - If the UF | |
1156 | * is an IAF - Copy IAF data to local phy object IAF data buffer. - Change | |
1157 | * starting substate to wait power. - else - log warning message of unexpected | |
1158 | * unsolicted frame - release frame buffer enum sci_status SCI_SUCCESS | |
1159 | */ | |
1160 | static enum sci_status scic_sds_phy_starting_substate_await_iaf_uf_frame_handler( | |
068b2c03 | 1161 | struct scic_sds_phy *sci_phy, u32 frame_index) |
6f231dda DW |
1162 | { |
1163 | enum sci_status result; | |
1164 | u32 *frame_words; | |
4b7ebd05 | 1165 | struct sas_identify_frame *identify_frame; |
6f231dda DW |
1166 | |
1167 | result = scic_sds_unsolicited_frame_control_get_header( | |
068b2c03 | 1168 | &(scic_sds_phy_get_controller(sci_phy)->uf_control), |
6f231dda DW |
1169 | frame_index, |
1170 | (void **)&frame_words); | |
1171 | ||
1172 | if (result != SCI_SUCCESS) { | |
1173 | return result; | |
1174 | } | |
1175 | ||
1176 | frame_words[0] = SCIC_SWAP_DWORD(frame_words[0]); | |
4b7ebd05 | 1177 | identify_frame = (struct sas_identify_frame *)frame_words; |
6f231dda | 1178 | |
4b7ebd05 | 1179 | if (identify_frame->frame_type == 0) { |
068b2c03 DW |
1180 | u32 state; |
1181 | ||
1182 | /* Byte swap the rest of the frame so we can make | |
1183 | * a copy of the buffer | |
1184 | */ | |
6f231dda DW |
1185 | frame_words[1] = SCIC_SWAP_DWORD(frame_words[1]); |
1186 | frame_words[2] = SCIC_SWAP_DWORD(frame_words[2]); | |
1187 | frame_words[3] = SCIC_SWAP_DWORD(frame_words[3]); | |
1188 | frame_words[4] = SCIC_SWAP_DWORD(frame_words[4]); | |
1189 | frame_words[5] = SCIC_SWAP_DWORD(frame_words[5]); | |
1190 | ||
1dea554f | 1191 | memcpy(&sci_phy->phy_type.sas_id_frame, |
6f231dda | 1192 | identify_frame, |
4b7ebd05 | 1193 | sizeof(struct sas_identify_frame)); |
6f231dda | 1194 | |
4b7ebd05 | 1195 | if (identify_frame->smp_tport) { |
068b2c03 DW |
1196 | /* We got the IAF for an expander PHY go to the final state since |
1197 | * there are no power requirements for expander phys. | |
1198 | */ | |
1199 | state = SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL; | |
6f231dda DW |
1200 | } else { |
1201 | /* We got the IAF we can now go to the await spinup semaphore state */ | |
068b2c03 | 1202 | state = SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER; |
6f231dda | 1203 | } |
068b2c03 DW |
1204 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1205 | state); | |
6f231dda DW |
1206 | result = SCI_SUCCESS; |
1207 | } else | |
068b2c03 | 1208 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1209 | "%s: PHY starting substate machine received " |
1210 | "unexpected frame id %x\n", | |
1211 | __func__, | |
1212 | frame_index); | |
1213 | ||
1214 | /* Regardless of the result release this frame since we are done with it */ | |
068b2c03 DW |
1215 | scic_sds_controller_release_frame(scic_sds_phy_get_controller(sci_phy), |
1216 | frame_index); | |
6f231dda DW |
1217 | |
1218 | return result; | |
1219 | } | |
1220 | ||
1221 | /** | |
1222 | * | |
1223 | * @phy: This is struct scic_sds_phy object which is being requested to decode the | |
1224 | * frame data. | |
1225 | * @frame_index: This is the index of the unsolicited frame which was received | |
1226 | * for this phy. | |
1227 | * | |
1228 | * This method decodes the unsolicited frame when the struct scic_sds_phy is in the | |
1229 | * SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - Get the UF Header - If | |
1230 | * the UF is an SIGNATURE FIS - Copy IAF data to local phy object SIGNATURE FIS | |
1231 | * data buffer. - else - log warning message of unexpected unsolicted frame - | |
1232 | * release frame buffer enum sci_status SCI_SUCCESS Must decode the SIGNATURE FIS | |
1233 | * data | |
1234 | */ | |
1235 | static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_frame_handler( | |
068b2c03 | 1236 | struct scic_sds_phy *sci_phy, |
6f231dda DW |
1237 | u32 frame_index) |
1238 | { | |
1239 | enum sci_status result; | |
e76d6180 | 1240 | struct dev_to_host_fis *frame_header; |
6f231dda DW |
1241 | u32 *fis_frame_data; |
1242 | ||
1243 | result = scic_sds_unsolicited_frame_control_get_header( | |
068b2c03 | 1244 | &(scic_sds_phy_get_controller(sci_phy)->uf_control), |
6f231dda | 1245 | frame_index, |
e76d6180 | 1246 | (void **)&frame_header); |
6f231dda | 1247 | |
e76d6180 | 1248 | if (result != SCI_SUCCESS) |
6f231dda | 1249 | return result; |
6f231dda | 1250 | |
e76d6180 DJ |
1251 | if ((frame_header->fis_type == FIS_REGD2H) && |
1252 | !(frame_header->status & ATA_BUSY)) { | |
6f231dda | 1253 | scic_sds_unsolicited_frame_control_get_buffer( |
068b2c03 | 1254 | &(scic_sds_phy_get_controller(sci_phy)->uf_control), |
6f231dda | 1255 | frame_index, |
068b2c03 | 1256 | (void **)&fis_frame_data); |
6f231dda DW |
1257 | |
1258 | scic_sds_controller_copy_sata_response( | |
1dea554f | 1259 | &sci_phy->phy_type.sata_sig_fis, |
e76d6180 | 1260 | frame_header, |
068b2c03 | 1261 | fis_frame_data); |
6f231dda | 1262 | |
e76d6180 | 1263 | /* got IAF we can now go to the await spinup semaphore state */ |
068b2c03 DW |
1264 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1265 | SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL); | |
6f231dda DW |
1266 | |
1267 | result = SCI_SUCCESS; | |
1268 | } else | |
068b2c03 | 1269 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1270 | "%s: PHY starting substate machine received " |
1271 | "unexpected frame id %x\n", | |
1272 | __func__, | |
1273 | frame_index); | |
1274 | ||
e76d6180 | 1275 | /* Regardless of the result we are done with this frame with it */ |
068b2c03 DW |
1276 | scic_sds_controller_release_frame(scic_sds_phy_get_controller(sci_phy), |
1277 | frame_index); | |
6f231dda DW |
1278 | |
1279 | return result; | |
1280 | } | |
1281 | ||
1282 | /* | |
1283 | * ***************************************************************************** | |
1284 | * * SCIC SDS PHY POWER_HANDLERS | |
1285 | * ***************************************************************************** */ | |
1286 | ||
d857d9a0 | 1287 | /* |
6f231dda DW |
1288 | * This method is called by the struct scic_sds_controller when the phy object is |
1289 | * granted power. - The notify enable spinups are turned on for this phy object | |
1290 | * - The phy state machine is transitioned to the | |
1291 | * SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL. enum sci_status SCI_SUCCESS | |
1292 | */ | |
1293 | static enum sci_status scic_sds_phy_starting_substate_await_sas_power_consume_power_handler( | |
068b2c03 | 1294 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
1295 | { |
1296 | u32 enable_spinup; | |
1297 | ||
bc99aa47 | 1298 | enable_spinup = readl(&sci_phy->link_layer_registers->notify_enable_spinup_control); |
6f231dda | 1299 | enable_spinup |= SCU_ENSPINUP_GEN_BIT(ENABLE); |
bc99aa47 | 1300 | writel(enable_spinup, &sci_phy->link_layer_registers->notify_enable_spinup_control); |
6f231dda DW |
1301 | |
1302 | /* Change state to the final state this substate machine has run to completion */ | |
068b2c03 DW |
1303 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1304 | SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL); | |
6f231dda DW |
1305 | |
1306 | return SCI_SUCCESS; | |
1307 | } | |
1308 | ||
d857d9a0 | 1309 | /* |
6f231dda DW |
1310 | * This method is called by the struct scic_sds_controller when the phy object is |
1311 | * granted power. - The phy state machine is transitioned to the | |
1312 | * SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN. enum sci_status SCI_SUCCESS | |
1313 | */ | |
1314 | static enum sci_status scic_sds_phy_starting_substate_await_sata_power_consume_power_handler( | |
068b2c03 | 1315 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
1316 | { |
1317 | u32 scu_sas_pcfg_value; | |
1318 | ||
1319 | /* Release the spinup hold state and reset the OOB state machine */ | |
bc99aa47 CH |
1320 | scu_sas_pcfg_value = |
1321 | readl(&sci_phy->link_layer_registers->phy_configuration); | |
6f231dda DW |
1322 | scu_sas_pcfg_value &= |
1323 | ~(SCU_SAS_PCFG_GEN_BIT(SATA_SPINUP_HOLD) | SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE)); | |
1324 | scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(OOB_RESET); | |
bc99aa47 CH |
1325 | writel(scu_sas_pcfg_value, |
1326 | &sci_phy->link_layer_registers->phy_configuration); | |
6f231dda DW |
1327 | |
1328 | /* Now restart the OOB operation */ | |
1329 | scu_sas_pcfg_value &= ~SCU_SAS_PCFG_GEN_BIT(OOB_RESET); | |
1330 | scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE); | |
bc99aa47 CH |
1331 | writel(scu_sas_pcfg_value, |
1332 | &sci_phy->link_layer_registers->phy_configuration); | |
6f231dda DW |
1333 | |
1334 | /* Change state to the final state this substate machine has run to completion */ | |
068b2c03 DW |
1335 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1336 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN); | |
6f231dda DW |
1337 | |
1338 | return SCI_SUCCESS; | |
1339 | } | |
1340 | ||
d857d9a0 MT |
1341 | static enum sci_status default_phy_handler(struct scic_sds_phy *sci_phy, |
1342 | const char *func) | |
35173d57 | 1343 | { |
35173d57 DW |
1344 | dev_dbg(sciphy_to_dev(sci_phy), |
1345 | "%s: in wrong state: %d\n", func, | |
d857d9a0 | 1346 | sci_base_state_machine_get_state(&sci_phy->state_machine)); |
35173d57 DW |
1347 | return SCI_FAILURE_INVALID_STATE; |
1348 | } | |
1349 | ||
d857d9a0 MT |
1350 | static enum sci_status |
1351 | scic_sds_phy_default_start_handler(struct scic_sds_phy *sci_phy) | |
35173d57 | 1352 | { |
d857d9a0 | 1353 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1354 | } |
1355 | ||
d857d9a0 MT |
1356 | static enum sci_status |
1357 | scic_sds_phy_default_stop_handler(struct scic_sds_phy *sci_phy) | |
35173d57 | 1358 | { |
d857d9a0 | 1359 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1360 | } |
1361 | ||
d857d9a0 MT |
1362 | static enum sci_status |
1363 | scic_sds_phy_default_reset_handler(struct scic_sds_phy *sci_phy) | |
35173d57 | 1364 | { |
d857d9a0 | 1365 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1366 | } |
1367 | ||
d857d9a0 MT |
1368 | static enum sci_status |
1369 | scic_sds_phy_default_destroy_handler(struct scic_sds_phy *sci_phy) | |
35173d57 | 1370 | { |
d857d9a0 | 1371 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1372 | } |
1373 | ||
d857d9a0 MT |
1374 | static enum sci_status |
1375 | scic_sds_phy_default_frame_handler(struct scic_sds_phy *sci_phy, | |
1376 | u32 frame_index) | |
35173d57 DW |
1377 | { |
1378 | struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy); | |
1379 | ||
d857d9a0 | 1380 | default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1381 | scic_sds_controller_release_frame(scic, frame_index); |
1382 | ||
1383 | return SCI_FAILURE_INVALID_STATE; | |
1384 | } | |
1385 | ||
d857d9a0 MT |
1386 | static enum sci_status |
1387 | scic_sds_phy_default_event_handler(struct scic_sds_phy *sci_phy, | |
1388 | u32 event_code) | |
35173d57 | 1389 | { |
d857d9a0 | 1390 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1391 | } |
1392 | ||
d857d9a0 MT |
1393 | static enum sci_status |
1394 | scic_sds_phy_default_consume_power_handler(struct scic_sds_phy *sci_phy) | |
35173d57 | 1395 | { |
d857d9a0 | 1396 | return default_phy_handler(sci_phy, __func__); |
35173d57 DW |
1397 | } |
1398 | ||
1399 | ||
1400 | ||
1401 | static const struct scic_sds_phy_state_handler scic_sds_phy_starting_substate_handler_table[] = { | |
8f31550c | 1402 | [SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = { |
d857d9a0 MT |
1403 | .start_handler = scic_sds_phy_default_start_handler, |
1404 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1405 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1406 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1407 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1408 | .event_handler = scic_sds_phy_default_event_handler, | |
1409 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1410 | }, |
8f31550c | 1411 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = { |
d857d9a0 MT |
1412 | .start_handler = scic_sds_phy_default_start_handler, |
1413 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1414 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1415 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1416 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1417 | .event_handler = scic_sds_phy_starting_substate_await_ossp_event_handler, | |
1418 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1419 | }, |
8f31550c | 1420 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = { |
d857d9a0 MT |
1421 | .start_handler = scic_sds_phy_default_start_handler, |
1422 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1423 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1424 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1425 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1426 | .event_handler = scic_sds_phy_starting_substate_await_sas_phy_speed_event_handler, | |
1427 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1428 | }, |
8f31550c | 1429 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = { |
d857d9a0 MT |
1430 | .start_handler = scic_sds_phy_default_start_handler, |
1431 | .stop_handler = scic_sds_phy_default_stop_handler, | |
1432 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1433 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1434 | .frame_handler = scic_sds_phy_starting_substate_await_iaf_uf_frame_handler, | |
1435 | .event_handler = scic_sds_phy_starting_substate_await_iaf_uf_event_handler, | |
1436 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1437 | }, |
8f31550c | 1438 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER] = { |
d857d9a0 MT |
1439 | .start_handler = scic_sds_phy_default_start_handler, |
1440 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1441 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1442 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1443 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1444 | .event_handler = scic_sds_phy_starting_substate_await_sas_power_event_handler, | |
1445 | .consume_power_handler = scic_sds_phy_starting_substate_await_sas_power_consume_power_handler | |
6f231dda | 1446 | }, |
8f31550c | 1447 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER] = { |
d857d9a0 MT |
1448 | .start_handler = scic_sds_phy_default_start_handler, |
1449 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1450 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1451 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1452 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1453 | .event_handler = scic_sds_phy_starting_substate_await_sata_power_event_handler, | |
1454 | .consume_power_handler = scic_sds_phy_starting_substate_await_sata_power_consume_power_handler | |
6f231dda | 1455 | }, |
8f31550c | 1456 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN] = { |
d857d9a0 MT |
1457 | .start_handler = scic_sds_phy_default_start_handler, |
1458 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1459 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1460 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1461 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1462 | .event_handler = scic_sds_phy_starting_substate_await_sata_phy_event_handler, | |
1463 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1464 | }, |
8f31550c | 1465 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN] = { |
d857d9a0 MT |
1466 | .start_handler = scic_sds_phy_default_start_handler, |
1467 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1468 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1469 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1470 | .frame_handler = scic_sds_phy_default_frame_handler, | |
1471 | .event_handler = scic_sds_phy_starting_substate_await_sata_speed_event_handler, | |
1472 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1473 | }, |
8f31550c | 1474 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF] = { |
d857d9a0 MT |
1475 | .start_handler = scic_sds_phy_default_start_handler, |
1476 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1477 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1478 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
1479 | .frame_handler = scic_sds_phy_starting_substate_await_sig_fis_frame_handler, | |
1480 | .event_handler = scic_sds_phy_starting_substate_await_sig_fis_event_handler, | |
1481 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1482 | }, |
8f31550c | 1483 | [SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL] = { |
d857d9a0 MT |
1484 | .start_handler = scic_sds_phy_default_start_handler, |
1485 | .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, | |
1486 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1487 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
1488 | .frame_handler = scic_sds_phy_default_frame_handler, |
1489 | .event_handler = scic_sds_phy_default_event_handler, | |
1490 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda DW |
1491 | } |
1492 | }; | |
1493 | ||
1494 | /** | |
1495 | * scic_sds_phy_set_starting_substate_handlers() - | |
1496 | * | |
1497 | * This macro sets the starting substate handlers by state_id | |
1498 | */ | |
1499 | #define scic_sds_phy_set_starting_substate_handlers(phy, state_id) \ | |
1500 | scic_sds_phy_set_state_handlers(\ | |
1501 | (phy), \ | |
1502 | &scic_sds_phy_starting_substate_handler_table[(state_id)] \ | |
1503 | ) | |
1504 | ||
1505 | /* | |
1506 | * **************************************************************************** | |
1507 | * * PHY STARTING SUBSTATE METHODS | |
1508 | * **************************************************************************** */ | |
1509 | ||
1510 | /** | |
068b2c03 | 1511 | * scic_sds_phy_starting_initial_substate_enter - |
9a0fff7b | 1512 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1513 | * |
1514 | * This method will perform the actions required by the struct scic_sds_phy on | |
1515 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL. - The initial state | |
1516 | * handlers are put in place for the struct scic_sds_phy object. - The state is | |
1517 | * changed to the wait phy type event notification. none | |
1518 | */ | |
9a0fff7b | 1519 | static void scic_sds_phy_starting_initial_substate_enter(void *object) |
6f231dda | 1520 | { |
e1e72a00 | 1521 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1522 | |
1523 | scic_sds_phy_set_starting_substate_handlers( | |
068b2c03 | 1524 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL); |
6f231dda DW |
1525 | |
1526 | /* This is just an temporary state go off to the starting state */ | |
068b2c03 DW |
1527 | sci_base_state_machine_change_state(&sci_phy->starting_substate_machine, |
1528 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN); | |
6f231dda DW |
1529 | } |
1530 | ||
1531 | /** | |
1532 | * | |
9a0fff7b | 1533 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1534 | * |
1535 | * This method will perform the actions required by the struct scic_sds_phy on | |
1536 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_PHY_TYPE_EN. - Set the | |
1537 | * struct scic_sds_phy object state handlers for this state. none | |
1538 | */ | |
9a0fff7b | 1539 | static void scic_sds_phy_starting_await_ossp_en_substate_enter(void *object) |
6f231dda | 1540 | { |
e1e72a00 | 1541 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1542 | |
1543 | scic_sds_phy_set_starting_substate_handlers( | |
e2023b87 | 1544 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN |
6f231dda DW |
1545 | ); |
1546 | } | |
1547 | ||
1548 | /** | |
1549 | * | |
9a0fff7b | 1550 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1551 | * |
1552 | * This method will perform the actions required by the struct scic_sds_phy on | |
1553 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SPEED_EN. - Set the | |
1554 | * struct scic_sds_phy object state handlers for this state. none | |
1555 | */ | |
1556 | static void scic_sds_phy_starting_await_sas_speed_en_substate_enter( | |
9a0fff7b | 1557 | void *object) |
6f231dda | 1558 | { |
e1e72a00 | 1559 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1560 | |
1561 | scic_sds_phy_set_starting_substate_handlers( | |
e2023b87 | 1562 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN |
6f231dda DW |
1563 | ); |
1564 | } | |
1565 | ||
1566 | /** | |
1567 | * | |
9a0fff7b | 1568 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1569 | * |
1570 | * This method will perform the actions required by the struct scic_sds_phy on | |
1571 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF. - Set the | |
1572 | * struct scic_sds_phy object state handlers for this state. none | |
1573 | */ | |
9a0fff7b | 1574 | static void scic_sds_phy_starting_await_iaf_uf_substate_enter(void *object) |
6f231dda | 1575 | { |
e1e72a00 | 1576 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1577 | |
1578 | scic_sds_phy_set_starting_substate_handlers( | |
e2023b87 | 1579 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF |
6f231dda DW |
1580 | ); |
1581 | } | |
1582 | ||
1583 | /** | |
1584 | * | |
9a0fff7b | 1585 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1586 | * |
1587 | * This method will perform the actions required by the struct scic_sds_phy on | |
1588 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER. - Set the | |
1589 | * struct scic_sds_phy object state handlers for this state. - Add this phy object to | |
1590 | * the power control queue none | |
1591 | */ | |
9a0fff7b | 1592 | static void scic_sds_phy_starting_await_sas_power_substate_enter(void *object) |
6f231dda | 1593 | { |
e1e72a00 | 1594 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1595 | |
1596 | scic_sds_phy_set_starting_substate_handlers( | |
e2023b87 | 1597 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER |
6f231dda DW |
1598 | ); |
1599 | ||
1600 | scic_sds_controller_power_control_queue_insert( | |
e2023b87 DJ |
1601 | scic_sds_phy_get_controller(sci_phy), |
1602 | sci_phy | |
6f231dda DW |
1603 | ); |
1604 | } | |
1605 | ||
1606 | /** | |
1607 | * | |
9a0fff7b | 1608 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1609 | * |
1610 | * This method will perform the actions required by the struct scic_sds_phy on exiting | |
1611 | * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER. - Remove the | |
1612 | * struct scic_sds_phy object from the power control queue. none | |
1613 | */ | |
9a0fff7b | 1614 | static void scic_sds_phy_starting_await_sas_power_substate_exit(void *object) |
6f231dda | 1615 | { |
e1e72a00 | 1616 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1617 | |
1618 | scic_sds_controller_power_control_queue_remove( | |
e2023b87 | 1619 | scic_sds_phy_get_controller(sci_phy), sci_phy |
6f231dda DW |
1620 | ); |
1621 | } | |
1622 | ||
1623 | /** | |
1624 | * | |
9a0fff7b | 1625 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1626 | * |
1627 | * This method will perform the actions required by the struct scic_sds_phy on | |
1628 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER. - Set the | |
1629 | * struct scic_sds_phy object state handlers for this state. - Add this phy object to | |
1630 | * the power control queue none | |
1631 | */ | |
9a0fff7b | 1632 | static void scic_sds_phy_starting_await_sata_power_substate_enter(void *object) |
6f231dda | 1633 | { |
e1e72a00 | 1634 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1635 | |
1636 | scic_sds_phy_set_starting_substate_handlers( | |
e2023b87 | 1637 | sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER |
6f231dda DW |
1638 | ); |
1639 | ||
1640 | scic_sds_controller_power_control_queue_insert( | |
e2023b87 DJ |
1641 | scic_sds_phy_get_controller(sci_phy), |
1642 | sci_phy | |
6f231dda DW |
1643 | ); |
1644 | } | |
1645 | ||
1646 | /** | |
1647 | * | |
9a0fff7b | 1648 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1649 | * |
1650 | * This method will perform the actions required by the struct scic_sds_phy on exiting | |
1651 | * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER. - Remove the | |
1652 | * struct scic_sds_phy object from the power control queue. none | |
1653 | */ | |
9a0fff7b | 1654 | static void scic_sds_phy_starting_await_sata_power_substate_exit(void *object) |
6f231dda | 1655 | { |
e1e72a00 | 1656 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1657 | |
1658 | scic_sds_controller_power_control_queue_remove( | |
e2023b87 DJ |
1659 | scic_sds_phy_get_controller(sci_phy), |
1660 | sci_phy | |
6f231dda DW |
1661 | ); |
1662 | } | |
1663 | ||
1664 | /** | |
1665 | * | |
9a0fff7b | 1666 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 1667 | * |
09d7da13 | 1668 | * This function will perform the actions required by the struct scic_sds_phy on |
6f231dda DW |
1669 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN. - Set the |
1670 | * struct scic_sds_phy object state handlers for this state. none | |
1671 | */ | |
9a0fff7b | 1672 | static void scic_sds_phy_starting_await_sata_phy_substate_enter(void *object) |
6f231dda | 1673 | { |
e1e72a00 | 1674 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1675 | |
1676 | scic_sds_phy_set_starting_substate_handlers( | |
09d7da13 DJ |
1677 | sci_phy, |
1678 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN); | |
6f231dda | 1679 | |
09d7da13 DJ |
1680 | isci_timer_start(sci_phy->sata_timeout_timer, |
1681 | SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); | |
6f231dda DW |
1682 | } |
1683 | ||
1684 | /** | |
1685 | * | |
9a0fff7b | 1686 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 1687 | * |
09d7da13 DJ |
1688 | * This method will perform the actions required by the struct scic_sds_phy |
1689 | * on exiting | |
6f231dda DW |
1690 | * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. - stop the timer |
1691 | * that was started on entry to await sata phy event notification none | |
1692 | */ | |
09d7da13 | 1693 | static inline void scic_sds_phy_starting_await_sata_phy_substate_exit( |
9a0fff7b | 1694 | void *object) |
6f231dda | 1695 | { |
e1e72a00 | 1696 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 1697 | |
09d7da13 | 1698 | isci_timer_stop(sci_phy->sata_timeout_timer); |
6f231dda DW |
1699 | } |
1700 | ||
1701 | /** | |
1702 | * | |
9a0fff7b | 1703 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1704 | * |
1705 | * This method will perform the actions required by the struct scic_sds_phy on | |
1706 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. - Set the | |
1707 | * struct scic_sds_phy object state handlers for this state. none | |
1708 | */ | |
9a0fff7b | 1709 | static void scic_sds_phy_starting_await_sata_speed_substate_enter(void *object) |
6f231dda | 1710 | { |
e1e72a00 | 1711 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1712 | |
1713 | scic_sds_phy_set_starting_substate_handlers( | |
09d7da13 DJ |
1714 | sci_phy, |
1715 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN); | |
6f231dda | 1716 | |
09d7da13 DJ |
1717 | isci_timer_start(sci_phy->sata_timeout_timer, |
1718 | SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); | |
6f231dda DW |
1719 | } |
1720 | ||
1721 | /** | |
1722 | * | |
9a0fff7b | 1723 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 1724 | * |
09d7da13 DJ |
1725 | * This function will perform the actions required by the |
1726 | * struct scic_sds_phy on exiting | |
6f231dda DW |
1727 | * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. - stop the timer |
1728 | * that was started on entry to await sata phy event notification none | |
1729 | */ | |
09d7da13 | 1730 | static inline void scic_sds_phy_starting_await_sata_speed_substate_exit( |
9a0fff7b | 1731 | void *object) |
6f231dda | 1732 | { |
e1e72a00 | 1733 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 1734 | |
09d7da13 | 1735 | isci_timer_stop(sci_phy->sata_timeout_timer); |
6f231dda DW |
1736 | } |
1737 | ||
1738 | /** | |
1739 | * | |
9a0fff7b | 1740 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 1741 | * |
09d7da13 | 1742 | * This function will perform the actions required by the struct scic_sds_phy on |
6f231dda | 1743 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - Set the |
09d7da13 DJ |
1744 | * struct scic_sds_phy object state handlers for this state. |
1745 | * - Start the SIGNATURE FIS | |
6f231dda DW |
1746 | * timeout timer none |
1747 | */ | |
9a0fff7b | 1748 | static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(void *object) |
6f231dda DW |
1749 | { |
1750 | bool continue_to_ready_state; | |
e1e72a00 | 1751 | struct scic_sds_phy *sci_phy = object; |
6f231dda DW |
1752 | |
1753 | scic_sds_phy_set_starting_substate_handlers( | |
09d7da13 DJ |
1754 | sci_phy, |
1755 | SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); | |
6f231dda DW |
1756 | |
1757 | continue_to_ready_state = scic_sds_port_link_detected( | |
09d7da13 DJ |
1758 | sci_phy->owning_port, |
1759 | sci_phy); | |
6f231dda DW |
1760 | |
1761 | if (continue_to_ready_state) { | |
1762 | /* | |
09d7da13 DJ |
1763 | * Clear the PE suspend condition so we can actually |
1764 | * receive SIG FIS | |
1765 | * The hardware will not respond to the XRDY until the PE | |
1766 | * suspend condition is cleared. | |
1767 | */ | |
1768 | scic_sds_phy_resume(sci_phy); | |
1769 | ||
1770 | isci_timer_start(sci_phy->sata_timeout_timer, | |
1771 | SCIC_SDS_SIGNATURE_FIS_TIMEOUT); | |
1772 | } else | |
1773 | sci_phy->is_in_link_training = false; | |
6f231dda DW |
1774 | } |
1775 | ||
1776 | /** | |
1777 | * | |
9a0fff7b | 1778 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 1779 | * |
09d7da13 DJ |
1780 | * This function will perform the actions required by the |
1781 | * struct scic_sds_phy on exiting | |
6f231dda DW |
1782 | * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - Stop the SIGNATURE |
1783 | * FIS timeout timer. none | |
1784 | */ | |
09d7da13 | 1785 | static inline void scic_sds_phy_starting_await_sig_fis_uf_substate_exit( |
9a0fff7b | 1786 | void *object) |
6f231dda | 1787 | { |
e1e72a00 | 1788 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 1789 | |
09d7da13 | 1790 | isci_timer_stop(sci_phy->sata_timeout_timer); |
6f231dda DW |
1791 | } |
1792 | ||
1793 | /** | |
1794 | * | |
9a0fff7b | 1795 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
1796 | * |
1797 | * This method will perform the actions required by the struct scic_sds_phy on | |
1798 | * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL. - Set the struct scic_sds_phy | |
1799 | * object state handlers for this state. - Change base state machine to the | |
1800 | * ready state. none | |
1801 | */ | |
9a0fff7b | 1802 | static void scic_sds_phy_starting_final_substate_enter(void *object) |
6f231dda | 1803 | { |
e1e72a00 | 1804 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 1805 | |
068b2c03 DW |
1806 | scic_sds_phy_set_starting_substate_handlers(sci_phy, |
1807 | SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL); | |
6f231dda | 1808 | |
068b2c03 DW |
1809 | /* State machine has run to completion so exit out and change |
1810 | * the base state machine to the ready state | |
1811 | */ | |
d857d9a0 | 1812 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1813 | SCI_BASE_PHY_STATE_READY); |
6f231dda DW |
1814 | } |
1815 | ||
1816 | /* --------------------------------------------------------------------------- */ | |
1817 | ||
35173d57 | 1818 | static const struct sci_base_state scic_sds_phy_starting_substates[] = { |
6f231dda DW |
1819 | [SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = { |
1820 | .enter_state = scic_sds_phy_starting_initial_substate_enter, | |
1821 | }, | |
1822 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = { | |
1823 | .enter_state = scic_sds_phy_starting_await_ossp_en_substate_enter, | |
1824 | }, | |
1825 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = { | |
1826 | .enter_state = scic_sds_phy_starting_await_sas_speed_en_substate_enter, | |
1827 | }, | |
1828 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = { | |
1829 | .enter_state = scic_sds_phy_starting_await_iaf_uf_substate_enter, | |
1830 | }, | |
1831 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER] = { | |
1832 | .enter_state = scic_sds_phy_starting_await_sas_power_substate_enter, | |
1833 | .exit_state = scic_sds_phy_starting_await_sas_power_substate_exit, | |
1834 | }, | |
1835 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER] = { | |
1836 | .enter_state = scic_sds_phy_starting_await_sata_power_substate_enter, | |
1837 | .exit_state = scic_sds_phy_starting_await_sata_power_substate_exit | |
1838 | }, | |
1839 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN] = { | |
1840 | .enter_state = scic_sds_phy_starting_await_sata_phy_substate_enter, | |
1841 | .exit_state = scic_sds_phy_starting_await_sata_phy_substate_exit | |
1842 | }, | |
1843 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN] = { | |
1844 | .enter_state = scic_sds_phy_starting_await_sata_speed_substate_enter, | |
1845 | .exit_state = scic_sds_phy_starting_await_sata_speed_substate_exit | |
1846 | }, | |
1847 | [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF] = { | |
1848 | .enter_state = scic_sds_phy_starting_await_sig_fis_uf_substate_enter, | |
1849 | .exit_state = scic_sds_phy_starting_await_sig_fis_uf_substate_exit | |
1850 | }, | |
1851 | [SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL] = { | |
1852 | .enter_state = scic_sds_phy_starting_final_substate_enter, | |
1853 | } | |
1854 | }; | |
1855 | ||
d857d9a0 | 1856 | /* |
09d7da13 DJ |
1857 | * This method takes the struct scic_sds_phy from a stopped state and |
1858 | * attempts to start it. - The phy state machine is transitioned to the | |
6f231dda DW |
1859 | * SCI_BASE_PHY_STATE_STARTING. enum sci_status SCI_SUCCESS |
1860 | */ | |
d857d9a0 MT |
1861 | static enum sci_status |
1862 | scic_sds_phy_stopped_state_start_handler(struct scic_sds_phy *sci_phy) | |
6f231dda | 1863 | { |
068b2c03 | 1864 | struct isci_host *ihost; |
068b2c03 DW |
1865 | struct scic_sds_controller *scic; |
1866 | ||
068b2c03 | 1867 | scic = scic_sds_phy_get_controller(sci_phy), |
d3757c3a | 1868 | ihost = scic->ihost; |
6f231dda | 1869 | |
c658b109 | 1870 | /* Create the SIGNATURE FIS Timeout timer for this phy */ |
068b2c03 DW |
1871 | sci_phy->sata_timeout_timer = isci_timer_create(ihost, sci_phy, |
1872 | scic_sds_phy_sata_timeout); | |
1873 | ||
1874 | if (sci_phy->sata_timeout_timer) | |
d857d9a0 | 1875 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1876 | SCI_BASE_PHY_STATE_STARTING); |
6f231dda DW |
1877 | |
1878 | return SCI_SUCCESS; | |
1879 | } | |
1880 | ||
d857d9a0 MT |
1881 | static enum sci_status |
1882 | scic_sds_phy_stopped_state_destroy_handler(struct scic_sds_phy *sci_phy) | |
6f231dda | 1883 | { |
6f231dda DW |
1884 | return SCI_SUCCESS; |
1885 | } | |
1886 | ||
d857d9a0 MT |
1887 | static enum sci_status |
1888 | scic_sds_phy_ready_state_stop_handler(struct scic_sds_phy *sci_phy) | |
6f231dda | 1889 | { |
d857d9a0 | 1890 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1891 | SCI_BASE_PHY_STATE_STOPPED); |
6f231dda DW |
1892 | |
1893 | return SCI_SUCCESS; | |
1894 | } | |
1895 | ||
d857d9a0 MT |
1896 | static enum sci_status |
1897 | scic_sds_phy_ready_state_reset_handler(struct scic_sds_phy *sci_phy) | |
6f231dda | 1898 | { |
d857d9a0 | 1899 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1900 | SCI_BASE_PHY_STATE_RESETTING); |
6f231dda DW |
1901 | |
1902 | return SCI_SUCCESS; | |
1903 | } | |
1904 | ||
1905 | /** | |
068b2c03 | 1906 | * scic_sds_phy_ready_state_event_handler - |
6f231dda DW |
1907 | * @phy: This is the struct scic_sds_phy object which has received the event. |
1908 | * | |
1909 | * This method request the struct scic_sds_phy handle the received event. The only | |
1910 | * event that we are interested in while in the ready state is the link failure | |
1911 | * event. - decoded event is a link failure - transition the struct scic_sds_phy back | |
068b2c03 | 1912 | * to the SCI_BASE_PHY_STATE_STARTING state. - any other event received will |
6f231dda DW |
1913 | * report a warning message enum sci_status SCI_SUCCESS if the event received is a |
1914 | * link failure SCI_FAILURE_INVALID_STATE for any other event received. | |
1915 | */ | |
068b2c03 DW |
1916 | static enum sci_status scic_sds_phy_ready_state_event_handler(struct scic_sds_phy *sci_phy, |
1917 | u32 event_code) | |
6f231dda DW |
1918 | { |
1919 | enum sci_status result = SCI_FAILURE; | |
1920 | ||
1921 | switch (scu_get_event_code(event_code)) { | |
1922 | case SCU_EVENT_LINK_FAILURE: | |
1923 | /* Link failure change state back to the starting state */ | |
d857d9a0 | 1924 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1925 | SCI_BASE_PHY_STATE_STARTING); |
6f231dda DW |
1926 | result = SCI_SUCCESS; |
1927 | break; | |
1928 | ||
1929 | case SCU_EVENT_BROADCAST_CHANGE: | |
1930 | /* Broadcast change received. Notify the port. */ | |
068b2c03 DW |
1931 | if (scic_sds_phy_get_port(sci_phy) != NULL) |
1932 | scic_sds_port_broadcast_change_received(sci_phy->owning_port, sci_phy); | |
6f231dda | 1933 | else |
068b2c03 | 1934 | sci_phy->bcn_received_while_port_unassigned = true; |
6f231dda DW |
1935 | break; |
1936 | ||
1937 | default: | |
068b2c03 | 1938 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1939 | "%sP SCIC PHY 0x%p ready state machine received " |
1940 | "unexpected event_code %x\n", | |
068b2c03 | 1941 | __func__, sci_phy, event_code); |
6f231dda DW |
1942 | |
1943 | result = SCI_FAILURE_INVALID_STATE; | |
1944 | break; | |
1945 | } | |
1946 | ||
1947 | return result; | |
1948 | } | |
1949 | ||
068b2c03 DW |
1950 | static enum sci_status scic_sds_phy_resetting_state_event_handler(struct scic_sds_phy *sci_phy, |
1951 | u32 event_code) | |
6f231dda DW |
1952 | { |
1953 | enum sci_status result = SCI_FAILURE; | |
1954 | ||
1955 | switch (scu_get_event_code(event_code)) { | |
1956 | case SCU_EVENT_HARD_RESET_TRANSMITTED: | |
1957 | /* Link failure change state back to the starting state */ | |
d857d9a0 | 1958 | sci_base_state_machine_change_state(&sci_phy->state_machine, |
068b2c03 | 1959 | SCI_BASE_PHY_STATE_STARTING); |
6f231dda DW |
1960 | result = SCI_SUCCESS; |
1961 | break; | |
1962 | ||
1963 | default: | |
068b2c03 | 1964 | dev_warn(sciphy_to_dev(sci_phy), |
6f231dda DW |
1965 | "%s: SCIC PHY 0x%p resetting state machine received " |
1966 | "unexpected event_code %x\n", | |
068b2c03 | 1967 | __func__, sci_phy, event_code); |
6f231dda DW |
1968 | |
1969 | result = SCI_FAILURE_INVALID_STATE; | |
1970 | break; | |
1971 | } | |
1972 | ||
1973 | return result; | |
1974 | } | |
1975 | ||
1976 | /* --------------------------------------------------------------------------- */ | |
1977 | ||
35173d57 | 1978 | static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[] = { |
8f31550c | 1979 | [SCI_BASE_PHY_STATE_INITIAL] = { |
d857d9a0 MT |
1980 | .start_handler = scic_sds_phy_default_start_handler, |
1981 | .stop_handler = scic_sds_phy_default_stop_handler, | |
1982 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1983 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
1984 | .frame_handler = scic_sds_phy_default_frame_handler, |
1985 | .event_handler = scic_sds_phy_default_event_handler, | |
1986 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1987 | }, |
8f31550c | 1988 | [SCI_BASE_PHY_STATE_STOPPED] = { |
d857d9a0 MT |
1989 | .start_handler = scic_sds_phy_stopped_state_start_handler, |
1990 | .stop_handler = scic_sds_phy_default_stop_handler, | |
1991 | .reset_handler = scic_sds_phy_default_reset_handler, | |
1992 | .destruct_handler = scic_sds_phy_stopped_state_destroy_handler, | |
8f31550c DW |
1993 | .frame_handler = scic_sds_phy_default_frame_handler, |
1994 | .event_handler = scic_sds_phy_default_event_handler, | |
1995 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 1996 | }, |
8f31550c | 1997 | [SCI_BASE_PHY_STATE_STARTING] = { |
d857d9a0 MT |
1998 | .start_handler = scic_sds_phy_default_start_handler, |
1999 | .stop_handler = scic_sds_phy_default_stop_handler, | |
2000 | .reset_handler = scic_sds_phy_default_reset_handler, | |
2001 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
2002 | .frame_handler = scic_sds_phy_default_frame_handler, |
2003 | .event_handler = scic_sds_phy_default_event_handler, | |
2004 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 2005 | }, |
8f31550c | 2006 | [SCI_BASE_PHY_STATE_READY] = { |
d857d9a0 MT |
2007 | .start_handler = scic_sds_phy_default_start_handler, |
2008 | .stop_handler = scic_sds_phy_ready_state_stop_handler, | |
2009 | .reset_handler = scic_sds_phy_ready_state_reset_handler, | |
2010 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
2011 | .frame_handler = scic_sds_phy_default_frame_handler, |
2012 | .event_handler = scic_sds_phy_ready_state_event_handler, | |
2013 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 2014 | }, |
8f31550c | 2015 | [SCI_BASE_PHY_STATE_RESETTING] = { |
d857d9a0 MT |
2016 | .start_handler = scic_sds_phy_default_start_handler, |
2017 | .stop_handler = scic_sds_phy_default_stop_handler, | |
2018 | .reset_handler = scic_sds_phy_default_reset_handler, | |
2019 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
2020 | .frame_handler = scic_sds_phy_default_frame_handler, |
2021 | .event_handler = scic_sds_phy_resetting_state_event_handler, | |
2022 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda | 2023 | }, |
8f31550c | 2024 | [SCI_BASE_PHY_STATE_FINAL] = { |
d857d9a0 MT |
2025 | .start_handler = scic_sds_phy_default_start_handler, |
2026 | .stop_handler = scic_sds_phy_default_stop_handler, | |
2027 | .reset_handler = scic_sds_phy_default_reset_handler, | |
2028 | .destruct_handler = scic_sds_phy_default_destroy_handler, | |
8f31550c DW |
2029 | .frame_handler = scic_sds_phy_default_frame_handler, |
2030 | .event_handler = scic_sds_phy_default_event_handler, | |
2031 | .consume_power_handler = scic_sds_phy_default_consume_power_handler | |
6f231dda DW |
2032 | } |
2033 | }; | |
2034 | ||
2035 | /* | |
2036 | * **************************************************************************** | |
2037 | * * PHY STATE PRIVATE METHODS | |
2038 | * **************************************************************************** */ | |
2039 | ||
2040 | /** | |
2041 | * | |
e2023b87 | 2042 | * @sci_phy: This is the struct scic_sds_phy object to stop. |
6f231dda DW |
2043 | * |
2044 | * This method will stop the struct scic_sds_phy object. This does not reset the | |
2045 | * protocol engine it just suspends it and places it in a state where it will | |
2046 | * not cause the end device to power up. none | |
2047 | */ | |
2048 | static void scu_link_layer_stop_protocol_engine( | |
e2023b87 | 2049 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
2050 | { |
2051 | u32 scu_sas_pcfg_value; | |
2052 | u32 enable_spinup_value; | |
2053 | ||
2054 | /* Suspend the protocol engine and place it in a sata spinup hold state */ | |
bc99aa47 | 2055 | scu_sas_pcfg_value = |
e2023b87 DJ |
2056 | readl(&sci_phy->link_layer_registers->phy_configuration); |
2057 | scu_sas_pcfg_value |= | |
2058 | (SCU_SAS_PCFG_GEN_BIT(OOB_RESET) | | |
2059 | SCU_SAS_PCFG_GEN_BIT(SUSPEND_PROTOCOL_ENGINE) | | |
2060 | SCU_SAS_PCFG_GEN_BIT(SATA_SPINUP_HOLD)); | |
bc99aa47 | 2061 | writel(scu_sas_pcfg_value, |
e2023b87 | 2062 | &sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
2063 | |
2064 | /* Disable the notify enable spinup primitives */ | |
e2023b87 | 2065 | enable_spinup_value = readl(&sci_phy->link_layer_registers->notify_enable_spinup_control); |
6f231dda | 2066 | enable_spinup_value &= ~SCU_ENSPINUP_GEN_BIT(ENABLE); |
e2023b87 | 2067 | writel(enable_spinup_value, &sci_phy->link_layer_registers->notify_enable_spinup_control); |
6f231dda DW |
2068 | } |
2069 | ||
2070 | /** | |
2071 | * | |
2072 | * | |
2073 | * This method will start the OOB/SN state machine for this struct scic_sds_phy object. | |
2074 | */ | |
2075 | static void scu_link_layer_start_oob( | |
e2023b87 | 2076 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
2077 | { |
2078 | u32 scu_sas_pcfg_value; | |
2079 | ||
bc99aa47 | 2080 | scu_sas_pcfg_value = |
e2023b87 | 2081 | readl(&sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
2082 | scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE); |
2083 | scu_sas_pcfg_value &= | |
e2023b87 DJ |
2084 | ~(SCU_SAS_PCFG_GEN_BIT(OOB_RESET) | |
2085 | SCU_SAS_PCFG_GEN_BIT(HARD_RESET)); | |
bc99aa47 | 2086 | writel(scu_sas_pcfg_value, |
e2023b87 | 2087 | &sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
2088 | } |
2089 | ||
2090 | /** | |
2091 | * | |
2092 | * | |
2093 | * This method will transmit a hard reset request on the specified phy. The SCU | |
2094 | * hardware requires that we reset the OOB state machine and set the hard reset | |
2095 | * bit in the phy configuration register. We then must start OOB over with the | |
2096 | * hard reset bit set. | |
2097 | */ | |
2098 | static void scu_link_layer_tx_hard_reset( | |
e2023b87 | 2099 | struct scic_sds_phy *sci_phy) |
6f231dda DW |
2100 | { |
2101 | u32 phy_configuration_value; | |
2102 | ||
2103 | /* | |
2104 | * SAS Phys must wait for the HARD_RESET_TX event notification to transition | |
2105 | * to the starting state. */ | |
bc99aa47 | 2106 | phy_configuration_value = |
e2023b87 | 2107 | readl(&sci_phy->link_layer_registers->phy_configuration); |
6f231dda | 2108 | phy_configuration_value |= |
e2023b87 DJ |
2109 | (SCU_SAS_PCFG_GEN_BIT(HARD_RESET) | |
2110 | SCU_SAS_PCFG_GEN_BIT(OOB_RESET)); | |
bc99aa47 | 2111 | writel(phy_configuration_value, |
e2023b87 | 2112 | &sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
2113 | |
2114 | /* Now take the OOB state machine out of reset */ | |
2115 | phy_configuration_value |= SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE); | |
2116 | phy_configuration_value &= ~SCU_SAS_PCFG_GEN_BIT(OOB_RESET); | |
bc99aa47 | 2117 | writel(phy_configuration_value, |
e2023b87 | 2118 | &sci_phy->link_layer_registers->phy_configuration); |
6f231dda DW |
2119 | } |
2120 | ||
2121 | /* | |
2122 | * **************************************************************************** | |
2123 | * * PHY BASE STATE METHODS | |
2124 | * **************************************************************************** */ | |
2125 | ||
2126 | /** | |
2127 | * | |
9a0fff7b | 2128 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2129 | * |
2130 | * This method will perform the actions required by the struct scic_sds_phy on | |
2131 | * entering the SCI_BASE_PHY_STATE_INITIAL. - This function sets the state | |
2132 | * handlers for the phy object base state machine initial state. none | |
2133 | */ | |
9a0fff7b | 2134 | static void scic_sds_phy_initial_state_enter(void *object) |
6f231dda | 2135 | { |
e1e72a00 | 2136 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2137 | |
e2023b87 | 2138 | scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_INITIAL); |
6f231dda DW |
2139 | } |
2140 | ||
2141 | /** | |
2142 | * | |
9a0fff7b | 2143 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda | 2144 | * |
09d7da13 | 2145 | * This function will perform the actions required by the struct scic_sds_phy on |
6f231dda DW |
2146 | * entering the SCI_BASE_PHY_STATE_INITIAL. - This function sets the state |
2147 | * handlers for the phy object base state machine initial state. - The SCU | |
2148 | * hardware is requested to stop the protocol engine. none | |
2149 | */ | |
9a0fff7b | 2150 | static void scic_sds_phy_stopped_state_enter(void *object) |
6f231dda | 2151 | { |
e1e72a00 | 2152 | struct scic_sds_phy *sci_phy = object; |
09d7da13 | 2153 | struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy); |
d3757c3a | 2154 | struct isci_host *ihost = scic->ihost; |
6f231dda | 2155 | |
4d07f7f3 DJ |
2156 | /* |
2157 | * @todo We need to get to the controller to place this PE in a | |
2158 | * reset state | |
2159 | */ | |
6f231dda | 2160 | |
09d7da13 DJ |
2161 | scic_sds_phy_set_base_state_handlers(sci_phy, |
2162 | SCI_BASE_PHY_STATE_STOPPED); | |
c658b109 PM |
2163 | |
2164 | if (sci_phy->sata_timeout_timer != NULL) { | |
09d7da13 | 2165 | isci_del_timer(ihost, sci_phy->sata_timeout_timer); |
c658b109 PM |
2166 | |
2167 | sci_phy->sata_timeout_timer = NULL; | |
2168 | } | |
6f231dda | 2169 | |
c658b109 | 2170 | scu_link_layer_stop_protocol_engine(sci_phy); |
4d07f7f3 | 2171 | |
d857d9a0 | 2172 | if (sci_phy->state_machine.previous_state_id != |
4d07f7f3 | 2173 | SCI_BASE_PHY_STATE_INITIAL) |
09d7da13 DJ |
2174 | scic_sds_controller_link_down( |
2175 | scic_sds_phy_get_controller(sci_phy), | |
2176 | scic_sds_phy_get_port(sci_phy), | |
2177 | sci_phy); | |
6f231dda DW |
2178 | } |
2179 | ||
2180 | /** | |
2181 | * | |
9a0fff7b | 2182 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2183 | * |
2184 | * This method will perform the actions required by the struct scic_sds_phy on | |
2185 | * entering the SCI_BASE_PHY_STATE_STARTING. - This function sets the state | |
2186 | * handlers for the phy object base state machine starting state. - The SCU | |
2187 | * hardware is requested to start OOB/SN on this protocl engine. - The phy | |
2188 | * starting substate machine is started. - If the previous state was the ready | |
2189 | * state then the struct scic_sds_controller is informed that the phy has gone link | |
2190 | * down. none | |
2191 | */ | |
9a0fff7b | 2192 | static void scic_sds_phy_starting_state_enter(void *object) |
6f231dda | 2193 | { |
e1e72a00 | 2194 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2195 | |
e2023b87 | 2196 | scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_STARTING); |
6f231dda | 2197 | |
e2023b87 DJ |
2198 | scu_link_layer_stop_protocol_engine(sci_phy); |
2199 | scu_link_layer_start_oob(sci_phy); | |
6f231dda DW |
2200 | |
2201 | /* We don't know what kind of phy we are going to be just yet */ | |
e2023b87 DJ |
2202 | sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN; |
2203 | sci_phy->bcn_received_while_port_unassigned = false; | |
6f231dda DW |
2204 | |
2205 | /* Change over to the starting substate machine to continue */ | |
e2023b87 | 2206 | sci_base_state_machine_start(&sci_phy->starting_substate_machine); |
6f231dda | 2207 | |
e2023b87 | 2208 | if (sci_phy->state_machine.previous_state_id |
6f231dda DW |
2209 | == SCI_BASE_PHY_STATE_READY) { |
2210 | scic_sds_controller_link_down( | |
e2023b87 DJ |
2211 | scic_sds_phy_get_controller(sci_phy), |
2212 | scic_sds_phy_get_port(sci_phy), | |
2213 | sci_phy | |
6f231dda DW |
2214 | ); |
2215 | } | |
2216 | } | |
2217 | ||
2218 | /** | |
2219 | * | |
9a0fff7b | 2220 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2221 | * |
2222 | * This method will perform the actions required by the struct scic_sds_phy on | |
2223 | * entering the SCI_BASE_PHY_STATE_READY. - This function sets the state | |
2224 | * handlers for the phy object base state machine ready state. - The SCU | |
2225 | * hardware protocol engine is resumed. - The struct scic_sds_controller is informed | |
2226 | * that the phy object has gone link up. none | |
2227 | */ | |
9a0fff7b | 2228 | static void scic_sds_phy_ready_state_enter(void *object) |
6f231dda | 2229 | { |
e1e72a00 | 2230 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2231 | |
e2023b87 | 2232 | scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_READY); |
6f231dda DW |
2233 | |
2234 | scic_sds_controller_link_up( | |
e2023b87 DJ |
2235 | scic_sds_phy_get_controller(sci_phy), |
2236 | scic_sds_phy_get_port(sci_phy), | |
2237 | sci_phy | |
6f231dda DW |
2238 | ); |
2239 | } | |
2240 | ||
2241 | /** | |
2242 | * | |
9a0fff7b | 2243 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2244 | * |
2245 | * This method will perform the actions required by the struct scic_sds_phy on exiting | |
2246 | * the SCI_BASE_PHY_STATE_INITIAL. This function suspends the SCU hardware | |
2247 | * protocol engine represented by this struct scic_sds_phy object. none | |
2248 | */ | |
9a0fff7b | 2249 | static void scic_sds_phy_ready_state_exit(void *object) |
6f231dda | 2250 | { |
e1e72a00 | 2251 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2252 | |
e2023b87 | 2253 | scic_sds_phy_suspend(sci_phy); |
6f231dda DW |
2254 | } |
2255 | ||
2256 | /** | |
2257 | * | |
9a0fff7b | 2258 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2259 | * |
2260 | * This method will perform the actions required by the struct scic_sds_phy on | |
2261 | * entering the SCI_BASE_PHY_STATE_RESETTING. - This function sets the state | |
2262 | * handlers for the phy object base state machine resetting state. none | |
2263 | */ | |
9a0fff7b | 2264 | static void scic_sds_phy_resetting_state_enter(void *object) |
6f231dda | 2265 | { |
e1e72a00 | 2266 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2267 | |
e2023b87 | 2268 | scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_RESETTING); |
6f231dda DW |
2269 | |
2270 | /* | |
2271 | * The phy is being reset, therefore deactivate it from the port. | |
2272 | * In the resetting state we don't notify the user regarding | |
2273 | * link up and link down notifications. */ | |
e2023b87 | 2274 | scic_sds_port_deactivate_phy(sci_phy->owning_port, sci_phy, false); |
6f231dda | 2275 | |
e2023b87 DJ |
2276 | if (sci_phy->protocol == SCIC_SDS_PHY_PROTOCOL_SAS) { |
2277 | scu_link_layer_tx_hard_reset(sci_phy); | |
6f231dda DW |
2278 | } else { |
2279 | /* | |
e2023b87 DJ |
2280 | * The SCU does not need to have a discrete reset state so |
2281 | * just go back to the starting state. | |
2282 | */ | |
2283 | sci_base_state_machine_change_state( | |
2284 | &sci_phy->state_machine, | |
2285 | SCI_BASE_PHY_STATE_STARTING); | |
6f231dda DW |
2286 | } |
2287 | } | |
2288 | ||
2289 | /** | |
2290 | * | |
9a0fff7b | 2291 | * @object: This is the object which is cast to a struct scic_sds_phy object. |
6f231dda DW |
2292 | * |
2293 | * This method will perform the actions required by the struct scic_sds_phy on | |
2294 | * entering the SCI_BASE_PHY_STATE_FINAL. - This function sets the state | |
2295 | * handlers for the phy object base state machine final state. none | |
2296 | */ | |
9a0fff7b | 2297 | static void scic_sds_phy_final_state_enter(void *object) |
6f231dda | 2298 | { |
e1e72a00 | 2299 | struct scic_sds_phy *sci_phy = object; |
6f231dda | 2300 | |
e2023b87 | 2301 | scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_FINAL); |
6f231dda DW |
2302 | |
2303 | /* Nothing to do here */ | |
2304 | } | |
2305 | ||
2306 | /* --------------------------------------------------------------------------- */ | |
2307 | ||
35173d57 | 2308 | static const struct sci_base_state scic_sds_phy_state_table[] = { |
6f231dda DW |
2309 | [SCI_BASE_PHY_STATE_INITIAL] = { |
2310 | .enter_state = scic_sds_phy_initial_state_enter, | |
2311 | }, | |
2312 | [SCI_BASE_PHY_STATE_STOPPED] = { | |
2313 | .enter_state = scic_sds_phy_stopped_state_enter, | |
2314 | }, | |
2315 | [SCI_BASE_PHY_STATE_STARTING] = { | |
2316 | .enter_state = scic_sds_phy_starting_state_enter, | |
2317 | }, | |
2318 | [SCI_BASE_PHY_STATE_READY] = { | |
2319 | .enter_state = scic_sds_phy_ready_state_enter, | |
2320 | .exit_state = scic_sds_phy_ready_state_exit, | |
2321 | }, | |
2322 | [SCI_BASE_PHY_STATE_RESETTING] = { | |
2323 | .enter_state = scic_sds_phy_resetting_state_enter, | |
2324 | }, | |
2325 | [SCI_BASE_PHY_STATE_FINAL] = { | |
2326 | .enter_state = scic_sds_phy_final_state_enter, | |
2327 | }, | |
2328 | }; | |
2329 | ||
35173d57 DW |
2330 | void scic_sds_phy_construct(struct scic_sds_phy *sci_phy, |
2331 | struct scic_sds_port *owning_port, u8 phy_index) | |
2332 | { | |
d857d9a0 | 2333 | |
d857d9a0 | 2334 | sci_base_state_machine_construct(&sci_phy->state_machine, |
e1e72a00 | 2335 | sci_phy, |
d857d9a0 MT |
2336 | scic_sds_phy_state_table, |
2337 | SCI_BASE_PHY_STATE_INITIAL); | |
2338 | ||
2339 | sci_base_state_machine_start(&sci_phy->state_machine); | |
35173d57 DW |
2340 | |
2341 | /* Copy the rest of the input data to our locals */ | |
2342 | sci_phy->owning_port = owning_port; | |
2343 | sci_phy->phy_index = phy_index; | |
2344 | sci_phy->bcn_received_while_port_unassigned = false; | |
2345 | sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN; | |
2346 | sci_phy->link_layer_registers = NULL; | |
26bace34 | 2347 | sci_phy->max_negotiated_speed = SAS_LINK_RATE_UNKNOWN; |
35173d57 DW |
2348 | sci_phy->sata_timeout_timer = NULL; |
2349 | ||
2350 | /* Clear out the identification buffer data */ | |
2351 | memset(&sci_phy->phy_type, 0, sizeof(sci_phy->phy_type)); | |
2352 | ||
2353 | /* Initialize the the substate machines */ | |
2354 | sci_base_state_machine_construct(&sci_phy->starting_substate_machine, | |
e1e72a00 | 2355 | sci_phy, |
35173d57 DW |
2356 | scic_sds_phy_starting_substates, |
2357 | SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL); | |
2358 | } |