xref: /openbmc/linux/drivers/scsi/pm8001/pm8001_hwi.c (revision f97769fd)
1 /*
2  * PMC-Sierra SPC 8001 SAS/SATA based host adapters driver
3  *
4  * Copyright (c) 2008-2009 USI Co., Ltd.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions, and the following disclaimer,
12  *    without modification.
13  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14  *    substantially similar to the "NO WARRANTY" disclaimer below
15  *    ("Disclaimer") and any redistribution must be conditioned upon
16  *    including a substantially similar Disclaimer requirement for further
17  *    binary redistribution.
18  * 3. Neither the names of the above-listed copyright holders nor the names
19  *    of any contributors may be used to endorse or promote products derived
20  *    from this software without specific prior written permission.
21  *
22  * Alternatively, this software may be distributed under the terms of the
23  * GNU General Public License ("GPL") version 2 as published by the Free
24  * Software Foundation.
25  *
26  * NO WARRANTY
27  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
30  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
35  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
36  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37  * POSSIBILITY OF SUCH DAMAGES.
38  *
39  */
40  #include <linux/slab.h>
41  #include "pm8001_sas.h"
42  #include "pm8001_hwi.h"
43  #include "pm8001_chips.h"
44  #include "pm8001_ctl.h"
45 
46 /**
47  * read_main_config_table - read the configure table and save it.
48  * @pm8001_ha: our hba card information
49  */
50 static void read_main_config_table(struct pm8001_hba_info *pm8001_ha)
51 {
52 	void __iomem *address = pm8001_ha->main_cfg_tbl_addr;
53 	pm8001_ha->main_cfg_tbl.pm8001_tbl.signature	=
54 				pm8001_mr32(address, 0x00);
55 	pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev =
56 				pm8001_mr32(address, 0x04);
57 	pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev	=
58 				pm8001_mr32(address, 0x08);
59 	pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io	=
60 				pm8001_mr32(address, 0x0C);
61 	pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl	=
62 				pm8001_mr32(address, 0x10);
63 	pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag =
64 				pm8001_mr32(address, 0x14);
65 	pm8001_ha->main_cfg_tbl.pm8001_tbl.gst_offset	=
66 				pm8001_mr32(address, 0x18);
67 	pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_queue_offset =
68 		pm8001_mr32(address, MAIN_IBQ_OFFSET);
69 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_queue_offset =
70 		pm8001_mr32(address, MAIN_OBQ_OFFSET);
71 	pm8001_ha->main_cfg_tbl.pm8001_tbl.hda_mode_flag	=
72 		pm8001_mr32(address, MAIN_HDA_FLAGS_OFFSET);
73 
74 	/* read analog Setting offset from the configuration table */
75 	pm8001_ha->main_cfg_tbl.pm8001_tbl.anolog_setup_table_offset =
76 		pm8001_mr32(address, MAIN_ANALOG_SETUP_OFFSET);
77 
78 	/* read Error Dump Offset and Length */
79 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_offset0 =
80 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP0_OFFSET);
81 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_length0 =
82 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP0_LENGTH);
83 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_offset1 =
84 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP1_OFFSET);
85 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_length1 =
86 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP1_LENGTH);
87 }
88 
89 /**
90  * read_general_status_table - read the general status table and save it.
91  * @pm8001_ha: our hba card information
92  */
93 static void read_general_status_table(struct pm8001_hba_info *pm8001_ha)
94 {
95 	void __iomem *address = pm8001_ha->general_stat_tbl_addr;
96 	pm8001_ha->gs_tbl.pm8001_tbl.gst_len_mpistate	=
97 				pm8001_mr32(address, 0x00);
98 	pm8001_ha->gs_tbl.pm8001_tbl.iq_freeze_state0	=
99 				pm8001_mr32(address, 0x04);
100 	pm8001_ha->gs_tbl.pm8001_tbl.iq_freeze_state1	=
101 				pm8001_mr32(address, 0x08);
102 	pm8001_ha->gs_tbl.pm8001_tbl.msgu_tcnt		=
103 				pm8001_mr32(address, 0x0C);
104 	pm8001_ha->gs_tbl.pm8001_tbl.iop_tcnt		=
105 				pm8001_mr32(address, 0x10);
106 	pm8001_ha->gs_tbl.pm8001_tbl.rsvd		=
107 				pm8001_mr32(address, 0x14);
108 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[0]	=
109 				pm8001_mr32(address, 0x18);
110 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[1]	=
111 				pm8001_mr32(address, 0x1C);
112 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[2]	=
113 				pm8001_mr32(address, 0x20);
114 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[3]	=
115 				pm8001_mr32(address, 0x24);
116 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[4]	=
117 				pm8001_mr32(address, 0x28);
118 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[5]	=
119 				pm8001_mr32(address, 0x2C);
120 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[6]	=
121 				pm8001_mr32(address, 0x30);
122 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[7]	=
123 				pm8001_mr32(address, 0x34);
124 	pm8001_ha->gs_tbl.pm8001_tbl.gpio_input_val	=
125 				pm8001_mr32(address, 0x38);
126 	pm8001_ha->gs_tbl.pm8001_tbl.rsvd1[0]		=
127 				pm8001_mr32(address, 0x3C);
128 	pm8001_ha->gs_tbl.pm8001_tbl.rsvd1[1]		=
129 				pm8001_mr32(address, 0x40);
130 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[0]	=
131 				pm8001_mr32(address, 0x44);
132 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[1]	=
133 				pm8001_mr32(address, 0x48);
134 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[2]	=
135 				pm8001_mr32(address, 0x4C);
136 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[3]	=
137 				pm8001_mr32(address, 0x50);
138 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[4]	=
139 				pm8001_mr32(address, 0x54);
140 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[5]	=
141 				pm8001_mr32(address, 0x58);
142 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[6]	=
143 				pm8001_mr32(address, 0x5C);
144 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[7]	=
145 				pm8001_mr32(address, 0x60);
146 }
147 
148 /**
149  * read_inbnd_queue_table - read the inbound queue table and save it.
150  * @pm8001_ha: our hba card information
151  */
152 static void read_inbnd_queue_table(struct pm8001_hba_info *pm8001_ha)
153 {
154 	int i;
155 	void __iomem *address = pm8001_ha->inbnd_q_tbl_addr;
156 	for (i = 0; i < PM8001_MAX_INB_NUM; i++) {
157 		u32 offset = i * 0x20;
158 		pm8001_ha->inbnd_q_tbl[i].pi_pci_bar =
159 		      get_pci_bar_index(pm8001_mr32(address, (offset + 0x14)));
160 		pm8001_ha->inbnd_q_tbl[i].pi_offset =
161 			pm8001_mr32(address, (offset + 0x18));
162 	}
163 }
164 
165 /**
166  * read_outbnd_queue_table - read the outbound queue table and save it.
167  * @pm8001_ha: our hba card information
168  */
169 static void read_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha)
170 {
171 	int i;
172 	void __iomem *address = pm8001_ha->outbnd_q_tbl_addr;
173 	for (i = 0; i < PM8001_MAX_OUTB_NUM; i++) {
174 		u32 offset = i * 0x24;
175 		pm8001_ha->outbnd_q_tbl[i].ci_pci_bar =
176 		      get_pci_bar_index(pm8001_mr32(address, (offset + 0x14)));
177 		pm8001_ha->outbnd_q_tbl[i].ci_offset =
178 			pm8001_mr32(address, (offset + 0x18));
179 	}
180 }
181 
182 /**
183  * init_default_table_values - init the default table.
184  * @pm8001_ha: our hba card information
185  */
186 static void init_default_table_values(struct pm8001_hba_info *pm8001_ha)
187 {
188 	int i;
189 	u32 offsetib, offsetob;
190 	void __iomem *addressib = pm8001_ha->inbnd_q_tbl_addr;
191 	void __iomem *addressob = pm8001_ha->outbnd_q_tbl_addr;
192 
193 	pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_q_nppd_hppd		= 0;
194 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid0_3	= 0;
195 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid4_7	= 0;
196 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid0_3	= 0;
197 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid4_7	= 0;
198 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ITNexus_event_pid0_3 =
199 									 0;
200 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ITNexus_event_pid4_7 =
201 									 0;
202 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ssp_event_pid0_3 = 0;
203 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ssp_event_pid4_7 = 0;
204 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_smp_event_pid0_3 = 0;
205 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_smp_event_pid4_7 = 0;
206 
207 	pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_event_log_addr		=
208 		pm8001_ha->memoryMap.region[AAP1].phys_addr_hi;
209 	pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_event_log_addr		=
210 		pm8001_ha->memoryMap.region[AAP1].phys_addr_lo;
211 	pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_size		=
212 		PM8001_EVENT_LOG_SIZE;
213 	pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_option		= 0x01;
214 	pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_iop_event_log_addr	=
215 		pm8001_ha->memoryMap.region[IOP].phys_addr_hi;
216 	pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_iop_event_log_addr	=
217 		pm8001_ha->memoryMap.region[IOP].phys_addr_lo;
218 	pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_size		=
219 		PM8001_EVENT_LOG_SIZE;
220 	pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_option		= 0x01;
221 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_interrupt		= 0x01;
222 	for (i = 0; i < PM8001_MAX_INB_NUM; i++) {
223 		pm8001_ha->inbnd_q_tbl[i].element_pri_size_cnt	=
224 			PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x00<<30);
225 		pm8001_ha->inbnd_q_tbl[i].upper_base_addr	=
226 			pm8001_ha->memoryMap.region[IB + i].phys_addr_hi;
227 		pm8001_ha->inbnd_q_tbl[i].lower_base_addr	=
228 		pm8001_ha->memoryMap.region[IB + i].phys_addr_lo;
229 		pm8001_ha->inbnd_q_tbl[i].base_virt		=
230 			(u8 *)pm8001_ha->memoryMap.region[IB + i].virt_ptr;
231 		pm8001_ha->inbnd_q_tbl[i].total_length		=
232 			pm8001_ha->memoryMap.region[IB + i].total_len;
233 		pm8001_ha->inbnd_q_tbl[i].ci_upper_base_addr	=
234 			pm8001_ha->memoryMap.region[CI + i].phys_addr_hi;
235 		pm8001_ha->inbnd_q_tbl[i].ci_lower_base_addr	=
236 			pm8001_ha->memoryMap.region[CI + i].phys_addr_lo;
237 		pm8001_ha->inbnd_q_tbl[i].ci_virt		=
238 			pm8001_ha->memoryMap.region[CI + i].virt_ptr;
239 		offsetib = i * 0x20;
240 		pm8001_ha->inbnd_q_tbl[i].pi_pci_bar		=
241 			get_pci_bar_index(pm8001_mr32(addressib,
242 				(offsetib + 0x14)));
243 		pm8001_ha->inbnd_q_tbl[i].pi_offset		=
244 			pm8001_mr32(addressib, (offsetib + 0x18));
245 		pm8001_ha->inbnd_q_tbl[i].producer_idx		= 0;
246 		pm8001_ha->inbnd_q_tbl[i].consumer_index	= 0;
247 	}
248 	for (i = 0; i < PM8001_MAX_OUTB_NUM; i++) {
249 		pm8001_ha->outbnd_q_tbl[i].element_size_cnt	=
250 			PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x01<<30);
251 		pm8001_ha->outbnd_q_tbl[i].upper_base_addr	=
252 			pm8001_ha->memoryMap.region[OB + i].phys_addr_hi;
253 		pm8001_ha->outbnd_q_tbl[i].lower_base_addr	=
254 			pm8001_ha->memoryMap.region[OB + i].phys_addr_lo;
255 		pm8001_ha->outbnd_q_tbl[i].base_virt		=
256 			(u8 *)pm8001_ha->memoryMap.region[OB + i].virt_ptr;
257 		pm8001_ha->outbnd_q_tbl[i].total_length		=
258 			pm8001_ha->memoryMap.region[OB + i].total_len;
259 		pm8001_ha->outbnd_q_tbl[i].pi_upper_base_addr	=
260 			pm8001_ha->memoryMap.region[PI + i].phys_addr_hi;
261 		pm8001_ha->outbnd_q_tbl[i].pi_lower_base_addr	=
262 			pm8001_ha->memoryMap.region[PI + i].phys_addr_lo;
263 		pm8001_ha->outbnd_q_tbl[i].interrup_vec_cnt_delay	=
264 			0 | (10 << 16) | (i << 24);
265 		pm8001_ha->outbnd_q_tbl[i].pi_virt		=
266 			pm8001_ha->memoryMap.region[PI + i].virt_ptr;
267 		offsetob = i * 0x24;
268 		pm8001_ha->outbnd_q_tbl[i].ci_pci_bar		=
269 			get_pci_bar_index(pm8001_mr32(addressob,
270 			offsetob + 0x14));
271 		pm8001_ha->outbnd_q_tbl[i].ci_offset		=
272 			pm8001_mr32(addressob, (offsetob + 0x18));
273 		pm8001_ha->outbnd_q_tbl[i].consumer_idx		= 0;
274 		pm8001_ha->outbnd_q_tbl[i].producer_index	= 0;
275 	}
276 }
277 
278 /**
279  * update_main_config_table - update the main default table to the HBA.
280  * @pm8001_ha: our hba card information
281  */
282 static void update_main_config_table(struct pm8001_hba_info *pm8001_ha)
283 {
284 	void __iomem *address = pm8001_ha->main_cfg_tbl_addr;
285 	pm8001_mw32(address, 0x24,
286 		pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_q_nppd_hppd);
287 	pm8001_mw32(address, 0x28,
288 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid0_3);
289 	pm8001_mw32(address, 0x2C,
290 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid4_7);
291 	pm8001_mw32(address, 0x30,
292 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid0_3);
293 	pm8001_mw32(address, 0x34,
294 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid4_7);
295 	pm8001_mw32(address, 0x38,
296 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
297 					outbound_tgt_ITNexus_event_pid0_3);
298 	pm8001_mw32(address, 0x3C,
299 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
300 					outbound_tgt_ITNexus_event_pid4_7);
301 	pm8001_mw32(address, 0x40,
302 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
303 					outbound_tgt_ssp_event_pid0_3);
304 	pm8001_mw32(address, 0x44,
305 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
306 					outbound_tgt_ssp_event_pid4_7);
307 	pm8001_mw32(address, 0x48,
308 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
309 					outbound_tgt_smp_event_pid0_3);
310 	pm8001_mw32(address, 0x4C,
311 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
312 					outbound_tgt_smp_event_pid4_7);
313 	pm8001_mw32(address, 0x50,
314 		pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_event_log_addr);
315 	pm8001_mw32(address, 0x54,
316 		pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_event_log_addr);
317 	pm8001_mw32(address, 0x58,
318 		pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_size);
319 	pm8001_mw32(address, 0x5C,
320 		pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_option);
321 	pm8001_mw32(address, 0x60,
322 		pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_iop_event_log_addr);
323 	pm8001_mw32(address, 0x64,
324 		pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_iop_event_log_addr);
325 	pm8001_mw32(address, 0x68,
326 		pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_size);
327 	pm8001_mw32(address, 0x6C,
328 		pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_option);
329 	pm8001_mw32(address, 0x70,
330 		pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_interrupt);
331 }
332 
333 /**
334  * update_inbnd_queue_table - update the inbound queue table to the HBA.
335  * @pm8001_ha: our hba card information
336  * @number: entry in the queue
337  */
338 static void update_inbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
339 				     int number)
340 {
341 	void __iomem *address = pm8001_ha->inbnd_q_tbl_addr;
342 	u16 offset = number * 0x20;
343 	pm8001_mw32(address, offset + 0x00,
344 		pm8001_ha->inbnd_q_tbl[number].element_pri_size_cnt);
345 	pm8001_mw32(address, offset + 0x04,
346 		pm8001_ha->inbnd_q_tbl[number].upper_base_addr);
347 	pm8001_mw32(address, offset + 0x08,
348 		pm8001_ha->inbnd_q_tbl[number].lower_base_addr);
349 	pm8001_mw32(address, offset + 0x0C,
350 		pm8001_ha->inbnd_q_tbl[number].ci_upper_base_addr);
351 	pm8001_mw32(address, offset + 0x10,
352 		pm8001_ha->inbnd_q_tbl[number].ci_lower_base_addr);
353 }
354 
355 /**
356  * update_outbnd_queue_table - update the outbound queue table to the HBA.
357  * @pm8001_ha: our hba card information
358  * @number: entry in the queue
359  */
360 static void update_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
361 				      int number)
362 {
363 	void __iomem *address = pm8001_ha->outbnd_q_tbl_addr;
364 	u16 offset = number * 0x24;
365 	pm8001_mw32(address, offset + 0x00,
366 		pm8001_ha->outbnd_q_tbl[number].element_size_cnt);
367 	pm8001_mw32(address, offset + 0x04,
368 		pm8001_ha->outbnd_q_tbl[number].upper_base_addr);
369 	pm8001_mw32(address, offset + 0x08,
370 		pm8001_ha->outbnd_q_tbl[number].lower_base_addr);
371 	pm8001_mw32(address, offset + 0x0C,
372 		pm8001_ha->outbnd_q_tbl[number].pi_upper_base_addr);
373 	pm8001_mw32(address, offset + 0x10,
374 		pm8001_ha->outbnd_q_tbl[number].pi_lower_base_addr);
375 	pm8001_mw32(address, offset + 0x1C,
376 		pm8001_ha->outbnd_q_tbl[number].interrup_vec_cnt_delay);
377 }
378 
379 /**
380  * pm8001_bar4_shift - function is called to shift BAR base address
381  * @pm8001_ha : our hba card infomation
382  * @shiftValue : shifting value in memory bar.
383  */
384 int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue)
385 {
386 	u32 regVal;
387 	unsigned long start;
388 
389 	/* program the inbound AXI translation Lower Address */
390 	pm8001_cw32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW, shiftValue);
391 
392 	/* confirm the setting is written */
393 	start = jiffies + HZ; /* 1 sec */
394 	do {
395 		regVal = pm8001_cr32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW);
396 	} while ((regVal != shiftValue) && time_before(jiffies, start));
397 
398 	if (regVal != shiftValue) {
399 		PM8001_INIT_DBG(pm8001_ha,
400 			pm8001_printk("TIMEOUT:SPC_IBW_AXI_TRANSLATION_LOW"
401 			" = 0x%x\n", regVal));
402 		return -1;
403 	}
404 	return 0;
405 }
406 
407 /**
408  * mpi_set_phys_g3_with_ssc
409  * @pm8001_ha: our hba card information
410  * @SSCbit: set SSCbit to 0 to disable all phys ssc; 1 to enable all phys ssc.
411  */
412 static void mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha,
413 				     u32 SSCbit)
414 {
415 	u32 value, offset, i;
416 	unsigned long flags;
417 
418 #define SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR 0x00030000
419 #define SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR 0x00040000
420 #define SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET 0x1074
421 #define SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET 0x1074
422 #define PHY_G3_WITHOUT_SSC_BIT_SHIFT 12
423 #define PHY_G3_WITH_SSC_BIT_SHIFT 13
424 #define SNW3_PHY_CAPABILITIES_PARITY 31
425 
426    /*
427     * Using shifted destination address 0x3_0000:0x1074 + 0x4000*N (N=0:3)
428     * Using shifted destination address 0x4_0000:0x1074 + 0x4000*(N-4) (N=4:7)
429     */
430 	spin_lock_irqsave(&pm8001_ha->lock, flags);
431 	if (-1 == pm8001_bar4_shift(pm8001_ha,
432 				SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR)) {
433 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
434 		return;
435 	}
436 
437 	for (i = 0; i < 4; i++) {
438 		offset = SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET + 0x4000 * i;
439 		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
440 	}
441 	/* shift membase 3 for SAS2_SETTINGS_LOCAL_PHY 4 - 7 */
442 	if (-1 == pm8001_bar4_shift(pm8001_ha,
443 				SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR)) {
444 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
445 		return;
446 	}
447 	for (i = 4; i < 8; i++) {
448 		offset = SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
449 		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
450 	}
451 	/*************************************************************
452 	Change the SSC upspreading value to 0x0 so that upspreading is disabled.
453 	Device MABC SMOD0 Controls
454 	Address: (via MEMBASE-III):
455 	Using shifted destination address 0x0_0000: with Offset 0xD8
456 
457 	31:28 R/W Reserved Do not change
458 	27:24 R/W SAS_SMOD_SPRDUP 0000
459 	23:20 R/W SAS_SMOD_SPRDDN 0000
460 	19:0  R/W  Reserved Do not change
461 	Upon power-up this register will read as 0x8990c016,
462 	and I would like you to change the SAS_SMOD_SPRDUP bits to 0b0000
463 	so that the written value will be 0x8090c016.
464 	This will ensure only down-spreading SSC is enabled on the SPC.
465 	*************************************************************/
466 	value = pm8001_cr32(pm8001_ha, 2, 0xd8);
467 	pm8001_cw32(pm8001_ha, 2, 0xd8, 0x8000C016);
468 
469 	/*set the shifted destination address to 0x0 to avoid error operation */
470 	pm8001_bar4_shift(pm8001_ha, 0x0);
471 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
472 	return;
473 }
474 
475 /**
476  * mpi_set_open_retry_interval_reg
477  * @pm8001_ha: our hba card information
478  * @interval: interval time for each OPEN_REJECT (RETRY). The units are in 1us.
479  */
480 static void mpi_set_open_retry_interval_reg(struct pm8001_hba_info *pm8001_ha,
481 					    u32 interval)
482 {
483 	u32 offset;
484 	u32 value;
485 	u32 i;
486 	unsigned long flags;
487 
488 #define OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR 0x00030000
489 #define OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR 0x00040000
490 #define OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET 0x30B4
491 #define OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET 0x30B4
492 #define OPEN_RETRY_INTERVAL_REG_MASK 0x0000FFFF
493 
494 	value = interval & OPEN_RETRY_INTERVAL_REG_MASK;
495 	spin_lock_irqsave(&pm8001_ha->lock, flags);
496 	/* shift bar and set the OPEN_REJECT(RETRY) interval time of PHY 0 -3.*/
497 	if (-1 == pm8001_bar4_shift(pm8001_ha,
498 			     OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR)) {
499 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
500 		return;
501 	}
502 	for (i = 0; i < 4; i++) {
503 		offset = OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET + 0x4000 * i;
504 		pm8001_cw32(pm8001_ha, 2, offset, value);
505 	}
506 
507 	if (-1 == pm8001_bar4_shift(pm8001_ha,
508 			     OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR)) {
509 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
510 		return;
511 	}
512 	for (i = 4; i < 8; i++) {
513 		offset = OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
514 		pm8001_cw32(pm8001_ha, 2, offset, value);
515 	}
516 	/*set the shifted destination address to 0x0 to avoid error operation */
517 	pm8001_bar4_shift(pm8001_ha, 0x0);
518 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
519 	return;
520 }
521 
522 /**
523  * mpi_init_check - check firmware initialization status.
524  * @pm8001_ha: our hba card information
525  */
526 static int mpi_init_check(struct pm8001_hba_info *pm8001_ha)
527 {
528 	u32 max_wait_count;
529 	u32 value;
530 	u32 gst_len_mpistate;
531 	/* Write bit0=1 to Inbound DoorBell Register to tell the SPC FW the
532 	table is updated */
533 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_UPDATE);
534 	/* wait until Inbound DoorBell Clear Register toggled */
535 	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
536 	do {
537 		udelay(1);
538 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
539 		value &= SPC_MSGU_CFG_TABLE_UPDATE;
540 	} while ((value != 0) && (--max_wait_count));
541 
542 	if (!max_wait_count)
543 		return -1;
544 	/* check the MPI-State for initialization */
545 	gst_len_mpistate =
546 		pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
547 		GST_GSTLEN_MPIS_OFFSET);
548 	if (GST_MPI_STATE_INIT != (gst_len_mpistate & GST_MPI_STATE_MASK))
549 		return -1;
550 	/* check MPI Initialization error */
551 	gst_len_mpistate = gst_len_mpistate >> 16;
552 	if (0x0000 != gst_len_mpistate)
553 		return -1;
554 	return 0;
555 }
556 
557 /**
558  * check_fw_ready - The LLDD check if the FW is ready, if not, return error.
559  * @pm8001_ha: our hba card information
560  */
561 static int check_fw_ready(struct pm8001_hba_info *pm8001_ha)
562 {
563 	u32 value, value1;
564 	u32 max_wait_count;
565 	/* check error state */
566 	value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
567 	value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
568 	/* check AAP error */
569 	if (SCRATCH_PAD1_ERR == (value & SCRATCH_PAD_STATE_MASK)) {
570 		/* error state */
571 		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
572 		return -1;
573 	}
574 
575 	/* check IOP error */
576 	if (SCRATCH_PAD2_ERR == (value1 & SCRATCH_PAD_STATE_MASK)) {
577 		/* error state */
578 		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3);
579 		return -1;
580 	}
581 
582 	/* bit 4-31 of scratch pad1 should be zeros if it is not
583 	in error state*/
584 	if (value & SCRATCH_PAD1_STATE_MASK) {
585 		/* error case */
586 		pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
587 		return -1;
588 	}
589 
590 	/* bit 2, 4-31 of scratch pad2 should be zeros if it is not
591 	in error state */
592 	if (value1 & SCRATCH_PAD2_STATE_MASK) {
593 		/* error case */
594 		return -1;
595 	}
596 
597 	max_wait_count = 1 * 1000 * 1000;/* 1 sec timeout */
598 
599 	/* wait until scratch pad 1 and 2 registers in ready state  */
600 	do {
601 		udelay(1);
602 		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
603 			& SCRATCH_PAD1_RDY;
604 		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
605 			& SCRATCH_PAD2_RDY;
606 		if ((--max_wait_count) == 0)
607 			return -1;
608 	} while ((value != SCRATCH_PAD1_RDY) || (value1 != SCRATCH_PAD2_RDY));
609 	return 0;
610 }
611 
612 static void init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
613 {
614 	void __iomem *base_addr;
615 	u32	value;
616 	u32	offset;
617 	u32	pcibar;
618 	u32	pcilogic;
619 
620 	value = pm8001_cr32(pm8001_ha, 0, 0x44);
621 	offset = value & 0x03FFFFFF;
622 	PM8001_INIT_DBG(pm8001_ha,
623 		pm8001_printk("Scratchpad 0 Offset: %x\n", offset));
624 	pcilogic = (value & 0xFC000000) >> 26;
625 	pcibar = get_pci_bar_index(pcilogic);
626 	PM8001_INIT_DBG(pm8001_ha,
627 		pm8001_printk("Scratchpad 0 PCI BAR: %d\n", pcibar));
628 	pm8001_ha->main_cfg_tbl_addr = base_addr =
629 		pm8001_ha->io_mem[pcibar].memvirtaddr + offset;
630 	pm8001_ha->general_stat_tbl_addr =
631 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x18);
632 	pm8001_ha->inbnd_q_tbl_addr =
633 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x1C);
634 	pm8001_ha->outbnd_q_tbl_addr =
635 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x20);
636 }
637 
638 /**
639  * pm8001_chip_init - the main init function that initialize whole PM8001 chip.
640  * @pm8001_ha: our hba card information
641  */
642 static int pm8001_chip_init(struct pm8001_hba_info *pm8001_ha)
643 {
644 	u8 i = 0;
645 	u16 deviceid;
646 	pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
647 	/* 8081 controllers need BAR shift to access MPI space
648 	* as this is shared with BIOS data */
649 	if (deviceid == 0x8081 || deviceid == 0x0042) {
650 		if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_SM_BASE)) {
651 			PM8001_FAIL_DBG(pm8001_ha,
652 				pm8001_printk("Shift Bar4 to 0x%x failed\n",
653 					GSM_SM_BASE));
654 			return -1;
655 		}
656 	}
657 	/* check the firmware status */
658 	if (-1 == check_fw_ready(pm8001_ha)) {
659 		PM8001_FAIL_DBG(pm8001_ha,
660 			pm8001_printk("Firmware is not ready!\n"));
661 		return -EBUSY;
662 	}
663 
664 	/* Initialize pci space address eg: mpi offset */
665 	init_pci_device_addresses(pm8001_ha);
666 	init_default_table_values(pm8001_ha);
667 	read_main_config_table(pm8001_ha);
668 	read_general_status_table(pm8001_ha);
669 	read_inbnd_queue_table(pm8001_ha);
670 	read_outbnd_queue_table(pm8001_ha);
671 	/* update main config table ,inbound table and outbound table */
672 	update_main_config_table(pm8001_ha);
673 	for (i = 0; i < PM8001_MAX_INB_NUM; i++)
674 		update_inbnd_queue_table(pm8001_ha, i);
675 	for (i = 0; i < PM8001_MAX_OUTB_NUM; i++)
676 		update_outbnd_queue_table(pm8001_ha, i);
677 	/* 8081 controller donot require these operations */
678 	if (deviceid != 0x8081 && deviceid != 0x0042) {
679 		mpi_set_phys_g3_with_ssc(pm8001_ha, 0);
680 		/* 7->130ms, 34->500ms, 119->1.5s */
681 		mpi_set_open_retry_interval_reg(pm8001_ha, 119);
682 	}
683 	/* notify firmware update finished and check initialization status */
684 	if (0 == mpi_init_check(pm8001_ha)) {
685 		PM8001_INIT_DBG(pm8001_ha,
686 			pm8001_printk("MPI initialize successful!\n"));
687 	} else
688 		return -EBUSY;
689 	/*This register is a 16-bit timer with a resolution of 1us. This is the
690 	timer used for interrupt delay/coalescing in the PCIe Application Layer.
691 	Zero is not a valid value. A value of 1 in the register will cause the
692 	interrupts to be normal. A value greater than 1 will cause coalescing
693 	delays.*/
694 	pm8001_cw32(pm8001_ha, 1, 0x0033c0, 0x1);
695 	pm8001_cw32(pm8001_ha, 1, 0x0033c4, 0x0);
696 	return 0;
697 }
698 
699 static int mpi_uninit_check(struct pm8001_hba_info *pm8001_ha)
700 {
701 	u32 max_wait_count;
702 	u32 value;
703 	u32 gst_len_mpistate;
704 	u16 deviceid;
705 	pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
706 	if (deviceid == 0x8081 || deviceid == 0x0042) {
707 		if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_SM_BASE)) {
708 			PM8001_FAIL_DBG(pm8001_ha,
709 				pm8001_printk("Shift Bar4 to 0x%x failed\n",
710 					GSM_SM_BASE));
711 			return -1;
712 		}
713 	}
714 	init_pci_device_addresses(pm8001_ha);
715 	/* Write bit1=1 to Inbound DoorBell Register to tell the SPC FW the
716 	table is stop */
717 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_RESET);
718 
719 	/* wait until Inbound DoorBell Clear Register toggled */
720 	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
721 	do {
722 		udelay(1);
723 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
724 		value &= SPC_MSGU_CFG_TABLE_RESET;
725 	} while ((value != 0) && (--max_wait_count));
726 
727 	if (!max_wait_count) {
728 		PM8001_FAIL_DBG(pm8001_ha,
729 			pm8001_printk("TIMEOUT:IBDB value/=0x%x\n", value));
730 		return -1;
731 	}
732 
733 	/* check the MPI-State for termination in progress */
734 	/* wait until Inbound DoorBell Clear Register toggled */
735 	max_wait_count = 1 * 1000 * 1000;  /* 1 sec */
736 	do {
737 		udelay(1);
738 		gst_len_mpistate =
739 			pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
740 			GST_GSTLEN_MPIS_OFFSET);
741 		if (GST_MPI_STATE_UNINIT ==
742 			(gst_len_mpistate & GST_MPI_STATE_MASK))
743 			break;
744 	} while (--max_wait_count);
745 	if (!max_wait_count) {
746 		PM8001_FAIL_DBG(pm8001_ha,
747 			pm8001_printk(" TIME OUT MPI State = 0x%x\n",
748 				gst_len_mpistate & GST_MPI_STATE_MASK));
749 		return -1;
750 	}
751 	return 0;
752 }
753 
754 /**
755  * soft_reset_ready_check - Function to check FW is ready for soft reset.
756  * @pm8001_ha: our hba card information
757  */
758 static u32 soft_reset_ready_check(struct pm8001_hba_info *pm8001_ha)
759 {
760 	u32 regVal, regVal1, regVal2;
761 	if (mpi_uninit_check(pm8001_ha) != 0) {
762 		PM8001_FAIL_DBG(pm8001_ha,
763 			pm8001_printk("MPI state is not ready\n"));
764 		return -1;
765 	}
766 	/* read the scratch pad 2 register bit 2 */
767 	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
768 		& SCRATCH_PAD2_FWRDY_RST;
769 	if (regVal == SCRATCH_PAD2_FWRDY_RST) {
770 		PM8001_INIT_DBG(pm8001_ha,
771 			pm8001_printk("Firmware is ready for reset .\n"));
772 	} else {
773 		unsigned long flags;
774 		/* Trigger NMI twice via RB6 */
775 		spin_lock_irqsave(&pm8001_ha->lock, flags);
776 		if (-1 == pm8001_bar4_shift(pm8001_ha, RB6_ACCESS_REG)) {
777 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
778 			PM8001_FAIL_DBG(pm8001_ha,
779 				pm8001_printk("Shift Bar4 to 0x%x failed\n",
780 					RB6_ACCESS_REG));
781 			return -1;
782 		}
783 		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET,
784 			RB6_MAGIC_NUMBER_RST);
785 		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET, RB6_MAGIC_NUMBER_RST);
786 		/* wait for 100 ms */
787 		mdelay(100);
788 		regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2) &
789 			SCRATCH_PAD2_FWRDY_RST;
790 		if (regVal != SCRATCH_PAD2_FWRDY_RST) {
791 			regVal1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
792 			regVal2 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
793 			PM8001_FAIL_DBG(pm8001_ha,
794 				pm8001_printk("TIMEOUT:MSGU_SCRATCH_PAD1"
795 				"=0x%x, MSGU_SCRATCH_PAD2=0x%x\n",
796 				regVal1, regVal2));
797 			PM8001_FAIL_DBG(pm8001_ha,
798 				pm8001_printk("SCRATCH_PAD0 value = 0x%x\n",
799 				pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0)));
800 			PM8001_FAIL_DBG(pm8001_ha,
801 				pm8001_printk("SCRATCH_PAD3 value = 0x%x\n",
802 				pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3)));
803 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
804 			return -1;
805 		}
806 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
807 	}
808 	return 0;
809 }
810 
811 /**
812  * pm8001_chip_soft_rst - soft reset the PM8001 chip, so that the clear all
813  * the FW register status to the originated status.
814  * @pm8001_ha: our hba card information
815  */
816 static int
817 pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha)
818 {
819 	u32	regVal, toggleVal;
820 	u32	max_wait_count;
821 	u32	regVal1, regVal2, regVal3;
822 	u32	signature = 0x252acbcd; /* for host scratch pad0 */
823 	unsigned long flags;
824 
825 	/* step1: Check FW is ready for soft reset */
826 	if (soft_reset_ready_check(pm8001_ha) != 0) {
827 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("FW is not ready\n"));
828 		return -1;
829 	}
830 
831 	/* step 2: clear NMI status register on AAP1 and IOP, write the same
832 	value to clear */
833 	/* map 0x60000 to BAR4(0x20), BAR2(win) */
834 	spin_lock_irqsave(&pm8001_ha->lock, flags);
835 	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_AAP1_ADDR_BASE)) {
836 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
837 		PM8001_FAIL_DBG(pm8001_ha,
838 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
839 			MBIC_AAP1_ADDR_BASE));
840 		return -1;
841 	}
842 	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP);
843 	PM8001_INIT_DBG(pm8001_ha,
844 		pm8001_printk("MBIC - NMI Enable VPE0 (IOP)= 0x%x\n", regVal));
845 	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP, 0x0);
846 	/* map 0x70000 to BAR4(0x20), BAR2(win) */
847 	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_IOP_ADDR_BASE)) {
848 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
849 		PM8001_FAIL_DBG(pm8001_ha,
850 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
851 			MBIC_IOP_ADDR_BASE));
852 		return -1;
853 	}
854 	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1);
855 	PM8001_INIT_DBG(pm8001_ha,
856 		pm8001_printk("MBIC - NMI Enable VPE0 (AAP1)= 0x%x\n", regVal));
857 	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1, 0x0);
858 
859 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE);
860 	PM8001_INIT_DBG(pm8001_ha,
861 		pm8001_printk("PCIE -Event Interrupt Enable = 0x%x\n", regVal));
862 	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE, 0x0);
863 
864 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT);
865 	PM8001_INIT_DBG(pm8001_ha,
866 		pm8001_printk("PCIE - Event Interrupt  = 0x%x\n", regVal));
867 	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT, regVal);
868 
869 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE);
870 	PM8001_INIT_DBG(pm8001_ha,
871 		pm8001_printk("PCIE -Error Interrupt Enable = 0x%x\n", regVal));
872 	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE, 0x0);
873 
874 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT);
875 	PM8001_INIT_DBG(pm8001_ha,
876 		pm8001_printk("PCIE - Error Interrupt = 0x%x\n", regVal));
877 	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT, regVal);
878 
879 	/* read the scratch pad 1 register bit 2 */
880 	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
881 		& SCRATCH_PAD1_RST;
882 	toggleVal = regVal ^ SCRATCH_PAD1_RST;
883 
884 	/* set signature in host scratch pad0 register to tell SPC that the
885 	host performs the soft reset */
886 	pm8001_cw32(pm8001_ha, 0, MSGU_HOST_SCRATCH_PAD_0, signature);
887 
888 	/* read required registers for confirmming */
889 	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
890 	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
891 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
892 		PM8001_FAIL_DBG(pm8001_ha,
893 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
894 			GSM_ADDR_BASE));
895 		return -1;
896 	}
897 	PM8001_INIT_DBG(pm8001_ha,
898 		pm8001_printk("GSM 0x0(0x00007b88)-GSM Configuration and"
899 		" Reset = 0x%x\n",
900 		pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
901 
902 	/* step 3: host read GSM Configuration and Reset register */
903 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
904 	/* Put those bits to low */
905 	/* GSM XCBI offset = 0x70 0000
906 	0x00 Bit 13 COM_SLV_SW_RSTB 1
907 	0x00 Bit 12 QSSP_SW_RSTB 1
908 	0x00 Bit 11 RAAE_SW_RSTB 1
909 	0x00 Bit 9 RB_1_SW_RSTB 1
910 	0x00 Bit 8 SM_SW_RSTB 1
911 	*/
912 	regVal &= ~(0x00003b00);
913 	/* host write GSM Configuration and Reset register */
914 	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
915 	PM8001_INIT_DBG(pm8001_ha,
916 		pm8001_printk("GSM 0x0 (0x00007b88 ==> 0x00004088) - GSM "
917 		"Configuration and Reset is set to = 0x%x\n",
918 		pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
919 
920 	/* step 4: */
921 	/* disable GSM - Read Address Parity Check */
922 	regVal1 = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
923 	PM8001_INIT_DBG(pm8001_ha,
924 		pm8001_printk("GSM 0x700038 - Read Address Parity Check "
925 		"Enable = 0x%x\n", regVal1));
926 	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, 0x0);
927 	PM8001_INIT_DBG(pm8001_ha,
928 		pm8001_printk("GSM 0x700038 - Read Address Parity Check Enable"
929 		"is set to = 0x%x\n",
930 		pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK)));
931 
932 	/* disable GSM - Write Address Parity Check */
933 	regVal2 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
934 	PM8001_INIT_DBG(pm8001_ha,
935 		pm8001_printk("GSM 0x700040 - Write Address Parity Check"
936 		" Enable = 0x%x\n", regVal2));
937 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, 0x0);
938 	PM8001_INIT_DBG(pm8001_ha,
939 		pm8001_printk("GSM 0x700040 - Write Address Parity Check "
940 		"Enable is set to = 0x%x\n",
941 		pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK)));
942 
943 	/* disable GSM - Write Data Parity Check */
944 	regVal3 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
945 	PM8001_INIT_DBG(pm8001_ha,
946 		pm8001_printk("GSM 0x300048 - Write Data Parity Check"
947 		" Enable = 0x%x\n", regVal3));
948 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, 0x0);
949 	PM8001_INIT_DBG(pm8001_ha,
950 		pm8001_printk("GSM 0x300048 - Write Data Parity Check Enable"
951 		"is set to = 0x%x\n",
952 	pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK)));
953 
954 	/* step 5: delay 10 usec */
955 	udelay(10);
956 	/* step 5-b: set GPIO-0 output control to tristate anyway */
957 	if (-1 == pm8001_bar4_shift(pm8001_ha, GPIO_ADDR_BASE)) {
958 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
959 		PM8001_INIT_DBG(pm8001_ha,
960 				pm8001_printk("Shift Bar4 to 0x%x failed\n",
961 				GPIO_ADDR_BASE));
962 		return -1;
963 	}
964 	regVal = pm8001_cr32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET);
965 	PM8001_INIT_DBG(pm8001_ha,
966 			pm8001_printk("GPIO Output Control Register:"
967 			" = 0x%x\n", regVal));
968 	/* set GPIO-0 output control to tri-state */
969 	regVal &= 0xFFFFFFFC;
970 	pm8001_cw32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET, regVal);
971 
972 	/* Step 6: Reset the IOP and AAP1 */
973 	/* map 0x00000 to BAR4(0x20), BAR2(win) */
974 	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
975 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
976 		PM8001_FAIL_DBG(pm8001_ha,
977 			pm8001_printk("SPC Shift Bar4 to 0x%x failed\n",
978 			SPC_TOP_LEVEL_ADDR_BASE));
979 		return -1;
980 	}
981 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
982 	PM8001_INIT_DBG(pm8001_ha,
983 		pm8001_printk("Top Register before resetting IOP/AAP1"
984 		":= 0x%x\n", regVal));
985 	regVal &= ~(SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
986 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
987 
988 	/* step 7: Reset the BDMA/OSSP */
989 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
990 	PM8001_INIT_DBG(pm8001_ha,
991 		pm8001_printk("Top Register before resetting BDMA/OSSP"
992 		": = 0x%x\n", regVal));
993 	regVal &= ~(SPC_REG_RESET_BDMA_CORE | SPC_REG_RESET_OSSP);
994 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
995 
996 	/* step 8: delay 10 usec */
997 	udelay(10);
998 
999 	/* step 9: bring the BDMA and OSSP out of reset */
1000 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
1001 	PM8001_INIT_DBG(pm8001_ha,
1002 		pm8001_printk("Top Register before bringing up BDMA/OSSP"
1003 		":= 0x%x\n", regVal));
1004 	regVal |= (SPC_REG_RESET_BDMA_CORE | SPC_REG_RESET_OSSP);
1005 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
1006 
1007 	/* step 10: delay 10 usec */
1008 	udelay(10);
1009 
1010 	/* step 11: reads and sets the GSM Configuration and Reset Register */
1011 	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
1012 	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
1013 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1014 		PM8001_FAIL_DBG(pm8001_ha,
1015 			pm8001_printk("SPC Shift Bar4 to 0x%x failed\n",
1016 			GSM_ADDR_BASE));
1017 		return -1;
1018 	}
1019 	PM8001_INIT_DBG(pm8001_ha,
1020 		pm8001_printk("GSM 0x0 (0x00007b88)-GSM Configuration and "
1021 		"Reset = 0x%x\n", pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
1022 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
1023 	/* Put those bits to high */
1024 	/* GSM XCBI offset = 0x70 0000
1025 	0x00 Bit 13 COM_SLV_SW_RSTB 1
1026 	0x00 Bit 12 QSSP_SW_RSTB 1
1027 	0x00 Bit 11 RAAE_SW_RSTB 1
1028 	0x00 Bit 9   RB_1_SW_RSTB 1
1029 	0x00 Bit 8   SM_SW_RSTB 1
1030 	*/
1031 	regVal |= (GSM_CONFIG_RESET_VALUE);
1032 	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
1033 	PM8001_INIT_DBG(pm8001_ha,
1034 		pm8001_printk("GSM (0x00004088 ==> 0x00007b88) - GSM"
1035 		" Configuration and Reset is set to = 0x%x\n",
1036 		pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
1037 
1038 	/* step 12: Restore GSM - Read Address Parity Check */
1039 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
1040 	/* just for debugging */
1041 	PM8001_INIT_DBG(pm8001_ha,
1042 		pm8001_printk("GSM 0x700038 - Read Address Parity Check Enable"
1043 		" = 0x%x\n", regVal));
1044 	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, regVal1);
1045 	PM8001_INIT_DBG(pm8001_ha,
1046 		pm8001_printk("GSM 0x700038 - Read Address Parity"
1047 		" Check Enable is set to = 0x%x\n",
1048 		pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK)));
1049 	/* Restore GSM - Write Address Parity Check */
1050 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
1051 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, regVal2);
1052 	PM8001_INIT_DBG(pm8001_ha,
1053 		pm8001_printk("GSM 0x700040 - Write Address Parity Check"
1054 		" Enable is set to = 0x%x\n",
1055 		pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK)));
1056 	/* Restore GSM - Write Data Parity Check */
1057 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
1058 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, regVal3);
1059 	PM8001_INIT_DBG(pm8001_ha,
1060 		pm8001_printk("GSM 0x700048 - Write Data Parity Check Enable"
1061 		"is set to = 0x%x\n",
1062 		pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK)));
1063 
1064 	/* step 13: bring the IOP and AAP1 out of reset */
1065 	/* map 0x00000 to BAR4(0x20), BAR2(win) */
1066 	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
1067 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1068 		PM8001_FAIL_DBG(pm8001_ha,
1069 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
1070 			SPC_TOP_LEVEL_ADDR_BASE));
1071 		return -1;
1072 	}
1073 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
1074 	regVal |= (SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
1075 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
1076 
1077 	/* step 14: delay 10 usec - Normal Mode */
1078 	udelay(10);
1079 	/* check Soft Reset Normal mode or Soft Reset HDA mode */
1080 	if (signature == SPC_SOFT_RESET_SIGNATURE) {
1081 		/* step 15 (Normal Mode): wait until scratch pad1 register
1082 		bit 2 toggled */
1083 		max_wait_count = 2 * 1000 * 1000;/* 2 sec */
1084 		do {
1085 			udelay(1);
1086 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1) &
1087 				SCRATCH_PAD1_RST;
1088 		} while ((regVal != toggleVal) && (--max_wait_count));
1089 
1090 		if (!max_wait_count) {
1091 			regVal = pm8001_cr32(pm8001_ha, 0,
1092 				MSGU_SCRATCH_PAD_1);
1093 			PM8001_FAIL_DBG(pm8001_ha,
1094 				pm8001_printk("TIMEOUT : ToggleVal 0x%x,"
1095 				"MSGU_SCRATCH_PAD1 = 0x%x\n",
1096 				toggleVal, regVal));
1097 			PM8001_FAIL_DBG(pm8001_ha,
1098 				pm8001_printk("SCRATCH_PAD0 value = 0x%x\n",
1099 				pm8001_cr32(pm8001_ha, 0,
1100 				MSGU_SCRATCH_PAD_0)));
1101 			PM8001_FAIL_DBG(pm8001_ha,
1102 				pm8001_printk("SCRATCH_PAD2 value = 0x%x\n",
1103 				pm8001_cr32(pm8001_ha, 0,
1104 				MSGU_SCRATCH_PAD_2)));
1105 			PM8001_FAIL_DBG(pm8001_ha,
1106 				pm8001_printk("SCRATCH_PAD3 value = 0x%x\n",
1107 				pm8001_cr32(pm8001_ha, 0,
1108 				MSGU_SCRATCH_PAD_3)));
1109 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1110 			return -1;
1111 		}
1112 
1113 		/* step 16 (Normal) - Clear ODMR and ODCR */
1114 		pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
1115 		pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);
1116 
1117 		/* step 17 (Normal Mode): wait for the FW and IOP to get
1118 		ready - 1 sec timeout */
1119 		/* Wait for the SPC Configuration Table to be ready */
1120 		if (check_fw_ready(pm8001_ha) == -1) {
1121 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
1122 			/* return error if MPI Configuration Table not ready */
1123 			PM8001_INIT_DBG(pm8001_ha,
1124 				pm8001_printk("FW not ready SCRATCH_PAD1"
1125 				" = 0x%x\n", regVal));
1126 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
1127 			/* return error if MPI Configuration Table not ready */
1128 			PM8001_INIT_DBG(pm8001_ha,
1129 				pm8001_printk("FW not ready SCRATCH_PAD2"
1130 				" = 0x%x\n", regVal));
1131 			PM8001_INIT_DBG(pm8001_ha,
1132 				pm8001_printk("SCRATCH_PAD0 value = 0x%x\n",
1133 				pm8001_cr32(pm8001_ha, 0,
1134 				MSGU_SCRATCH_PAD_0)));
1135 			PM8001_INIT_DBG(pm8001_ha,
1136 				pm8001_printk("SCRATCH_PAD3 value = 0x%x\n",
1137 				pm8001_cr32(pm8001_ha, 0,
1138 				MSGU_SCRATCH_PAD_3)));
1139 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1140 			return -1;
1141 		}
1142 	}
1143 	pm8001_bar4_shift(pm8001_ha, 0);
1144 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1145 
1146 	PM8001_INIT_DBG(pm8001_ha,
1147 		pm8001_printk("SPC soft reset Complete\n"));
1148 	return 0;
1149 }
1150 
1151 static void pm8001_hw_chip_rst(struct pm8001_hba_info *pm8001_ha)
1152 {
1153 	u32 i;
1154 	u32 regVal;
1155 	PM8001_INIT_DBG(pm8001_ha,
1156 		pm8001_printk("chip reset start\n"));
1157 
1158 	/* do SPC chip reset. */
1159 	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
1160 	regVal &= ~(SPC_REG_RESET_DEVICE);
1161 	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);
1162 
1163 	/* delay 10 usec */
1164 	udelay(10);
1165 
1166 	/* bring chip reset out of reset */
1167 	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
1168 	regVal |= SPC_REG_RESET_DEVICE;
1169 	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);
1170 
1171 	/* delay 10 usec */
1172 	udelay(10);
1173 
1174 	/* wait for 20 msec until the firmware gets reloaded */
1175 	i = 20;
1176 	do {
1177 		mdelay(1);
1178 	} while ((--i) != 0);
1179 
1180 	PM8001_INIT_DBG(pm8001_ha,
1181 		pm8001_printk("chip reset finished\n"));
1182 }
1183 
1184 /**
1185  * pm8001_chip_iounmap - which maped when initialized.
1186  * @pm8001_ha: our hba card information
1187  */
1188 void pm8001_chip_iounmap(struct pm8001_hba_info *pm8001_ha)
1189 {
1190 	s8 bar, logical = 0;
1191 	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
1192 		/*
1193 		** logical BARs for SPC:
1194 		** bar 0 and 1 - logical BAR0
1195 		** bar 2 and 3 - logical BAR1
1196 		** bar4 - logical BAR2
1197 		** bar5 - logical BAR3
1198 		** Skip the appropriate assignments:
1199 		*/
1200 		if ((bar == 1) || (bar == 3))
1201 			continue;
1202 		if (pm8001_ha->io_mem[logical].memvirtaddr) {
1203 			iounmap(pm8001_ha->io_mem[logical].memvirtaddr);
1204 			logical++;
1205 		}
1206 	}
1207 }
1208 
1209 #ifndef PM8001_USE_MSIX
1210 /**
1211  * pm8001_chip_interrupt_enable - enable PM8001 chip interrupt
1212  * @pm8001_ha: our hba card information
1213  */
1214 static void
1215 pm8001_chip_intx_interrupt_enable(struct pm8001_hba_info *pm8001_ha)
1216 {
1217 	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);
1218 	pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
1219 }
1220 
1221  /**
1222   * pm8001_chip_intx_interrupt_disable- disable PM8001 chip interrupt
1223   * @pm8001_ha: our hba card information
1224   */
1225 static void
1226 pm8001_chip_intx_interrupt_disable(struct pm8001_hba_info *pm8001_ha)
1227 {
1228 	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_MASK_ALL);
1229 }
1230 
1231 #else
1232 
1233 /**
1234  * pm8001_chip_msix_interrupt_enable - enable PM8001 chip interrupt
1235  * @pm8001_ha: our hba card information
1236  * @int_vec_idx: interrupt number to enable
1237  */
1238 static void
1239 pm8001_chip_msix_interrupt_enable(struct pm8001_hba_info *pm8001_ha,
1240 	u32 int_vec_idx)
1241 {
1242 	u32 msi_index;
1243 	u32 value;
1244 	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
1245 	msi_index += MSIX_TABLE_BASE;
1246 	pm8001_cw32(pm8001_ha, 0, msi_index, MSIX_INTERRUPT_ENABLE);
1247 	value = (1 << int_vec_idx);
1248 	pm8001_cw32(pm8001_ha, 0,  MSGU_ODCR, value);
1249 
1250 }
1251 
1252 /**
1253  * pm8001_chip_msix_interrupt_disable - disable PM8001 chip interrupt
1254  * @pm8001_ha: our hba card information
1255  * @int_vec_idx: interrupt number to disable
1256  */
1257 static void
1258 pm8001_chip_msix_interrupt_disable(struct pm8001_hba_info *pm8001_ha,
1259 	u32 int_vec_idx)
1260 {
1261 	u32 msi_index;
1262 	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
1263 	msi_index += MSIX_TABLE_BASE;
1264 	pm8001_cw32(pm8001_ha, 0,  msi_index, MSIX_INTERRUPT_DISABLE);
1265 }
1266 #endif
1267 
1268 /**
1269  * pm8001_chip_interrupt_enable - enable PM8001 chip interrupt
1270  * @pm8001_ha: our hba card information
1271  * @vec: unused
1272  */
1273 static void
1274 pm8001_chip_interrupt_enable(struct pm8001_hba_info *pm8001_ha, u8 vec)
1275 {
1276 #ifdef PM8001_USE_MSIX
1277 	pm8001_chip_msix_interrupt_enable(pm8001_ha, 0);
1278 #else
1279 	pm8001_chip_intx_interrupt_enable(pm8001_ha);
1280 #endif
1281 }
1282 
1283 /**
1284  * pm8001_chip_intx_interrupt_disable- disable PM8001 chip interrupt
1285  * @pm8001_ha: our hba card information
1286  * @vec: unused
1287  */
1288 static void
1289 pm8001_chip_interrupt_disable(struct pm8001_hba_info *pm8001_ha, u8 vec)
1290 {
1291 #ifdef PM8001_USE_MSIX
1292 	pm8001_chip_msix_interrupt_disable(pm8001_ha, 0);
1293 #else
1294 	pm8001_chip_intx_interrupt_disable(pm8001_ha);
1295 #endif
1296 }
1297 
1298 /**
1299  * pm8001_mpi_msg_free_get - get the free message buffer for transfer
1300  * inbound queue.
1301  * @circularQ: the inbound queue  we want to transfer to HBA.
1302  * @messageSize: the message size of this transfer, normally it is 64 bytes
1303  * @messagePtr: the pointer to message.
1304  */
1305 int pm8001_mpi_msg_free_get(struct inbound_queue_table *circularQ,
1306 			    u16 messageSize, void **messagePtr)
1307 {
1308 	u32 offset, consumer_index;
1309 	struct mpi_msg_hdr *msgHeader;
1310 	u8 bcCount = 1; /* only support single buffer */
1311 
1312 	/* Checks is the requested message size can be allocated in this queue*/
1313 	if (messageSize > IOMB_SIZE_SPCV) {
1314 		*messagePtr = NULL;
1315 		return -1;
1316 	}
1317 
1318 	/* Stores the new consumer index */
1319 	consumer_index = pm8001_read_32(circularQ->ci_virt);
1320 	circularQ->consumer_index = cpu_to_le32(consumer_index);
1321 	if (((circularQ->producer_idx + bcCount) % PM8001_MPI_QUEUE) ==
1322 		le32_to_cpu(circularQ->consumer_index)) {
1323 		*messagePtr = NULL;
1324 		return -1;
1325 	}
1326 	/* get memory IOMB buffer address */
1327 	offset = circularQ->producer_idx * messageSize;
1328 	/* increment to next bcCount element */
1329 	circularQ->producer_idx = (circularQ->producer_idx + bcCount)
1330 				% PM8001_MPI_QUEUE;
1331 	/* Adds that distance to the base of the region virtual address plus
1332 	the message header size*/
1333 	msgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt	+ offset);
1334 	*messagePtr = ((void *)msgHeader) + sizeof(struct mpi_msg_hdr);
1335 	return 0;
1336 }
1337 
1338 /**
1339  * pm8001_mpi_build_cmd- build the message queue for transfer, update the PI to
1340  * FW to tell the fw to get this message from IOMB.
1341  * @pm8001_ha: our hba card information
1342  * @circularQ: the inbound queue we want to transfer to HBA.
1343  * @opCode: the operation code represents commands which LLDD and fw recognized.
1344  * @payload: the command payload of each operation command.
1345  * @nb: size in bytes of the command payload
1346  * @responseQueue: queue to interrupt on w/ command response (if any)
1347  */
1348 int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
1349 			 struct inbound_queue_table *circularQ,
1350 			 u32 opCode, void *payload, size_t nb,
1351 			 u32 responseQueue)
1352 {
1353 	u32 Header = 0, hpriority = 0, bc = 1, category = 0x02;
1354 	void *pMessage;
1355 
1356 	if (pm8001_mpi_msg_free_get(circularQ, pm8001_ha->iomb_size,
1357 		&pMessage) < 0) {
1358 		PM8001_IO_DBG(pm8001_ha,
1359 			pm8001_printk("No free mpi buffer\n"));
1360 		return -ENOMEM;
1361 	}
1362 
1363 	if (nb > (pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr)))
1364 		nb = pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr);
1365 	memcpy(pMessage, payload, nb);
1366 	if (nb + sizeof(struct mpi_msg_hdr) < pm8001_ha->iomb_size)
1367 		memset(pMessage + nb, 0, pm8001_ha->iomb_size -
1368 				(nb + sizeof(struct mpi_msg_hdr)));
1369 
1370 	/*Build the header*/
1371 	Header = ((1 << 31) | (hpriority << 30) | ((bc & 0x1f) << 24)
1372 		| ((responseQueue & 0x3F) << 16)
1373 		| ((category & 0xF) << 12) | (opCode & 0xFFF));
1374 
1375 	pm8001_write_32((pMessage - 4), 0, cpu_to_le32(Header));
1376 	/*Update the PI to the firmware*/
1377 	pm8001_cw32(pm8001_ha, circularQ->pi_pci_bar,
1378 		circularQ->pi_offset, circularQ->producer_idx);
1379 	PM8001_DEVIO_DBG(pm8001_ha,
1380 		pm8001_printk("INB Q %x OPCODE:%x , UPDATED PI=%d CI=%d\n",
1381 			responseQueue, opCode, circularQ->producer_idx,
1382 			circularQ->consumer_index));
1383 	return 0;
1384 }
1385 
1386 u32 pm8001_mpi_msg_free_set(struct pm8001_hba_info *pm8001_ha, void *pMsg,
1387 			    struct outbound_queue_table *circularQ, u8 bc)
1388 {
1389 	u32 producer_index;
1390 	struct mpi_msg_hdr *msgHeader;
1391 	struct mpi_msg_hdr *pOutBoundMsgHeader;
1392 
1393 	msgHeader = (struct mpi_msg_hdr *)(pMsg - sizeof(struct mpi_msg_hdr));
1394 	pOutBoundMsgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt +
1395 				circularQ->consumer_idx * pm8001_ha->iomb_size);
1396 	if (pOutBoundMsgHeader != msgHeader) {
1397 		PM8001_FAIL_DBG(pm8001_ha,
1398 			pm8001_printk("consumer_idx = %d msgHeader = %p\n",
1399 			circularQ->consumer_idx, msgHeader));
1400 
1401 		/* Update the producer index from SPC */
1402 		producer_index = pm8001_read_32(circularQ->pi_virt);
1403 		circularQ->producer_index = cpu_to_le32(producer_index);
1404 		PM8001_FAIL_DBG(pm8001_ha,
1405 			pm8001_printk("consumer_idx = %d producer_index = %d"
1406 			"msgHeader = %p\n", circularQ->consumer_idx,
1407 			circularQ->producer_index, msgHeader));
1408 		return 0;
1409 	}
1410 	/* free the circular queue buffer elements associated with the message*/
1411 	circularQ->consumer_idx = (circularQ->consumer_idx + bc)
1412 				% PM8001_MPI_QUEUE;
1413 	/* update the CI of outbound queue */
1414 	pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar, circularQ->ci_offset,
1415 		circularQ->consumer_idx);
1416 	/* Update the producer index from SPC*/
1417 	producer_index = pm8001_read_32(circularQ->pi_virt);
1418 	circularQ->producer_index = cpu_to_le32(producer_index);
1419 	PM8001_IO_DBG(pm8001_ha,
1420 		pm8001_printk(" CI=%d PI=%d\n", circularQ->consumer_idx,
1421 		circularQ->producer_index));
1422 	return 0;
1423 }
1424 
1425 /**
1426  * pm8001_mpi_msg_consume- get the MPI message from outbound queue
1427  * message table.
1428  * @pm8001_ha: our hba card information
1429  * @circularQ: the outbound queue  table.
1430  * @messagePtr1: the message contents of this outbound message.
1431  * @pBC: the message size.
1432  */
1433 u32 pm8001_mpi_msg_consume(struct pm8001_hba_info *pm8001_ha,
1434 			   struct outbound_queue_table *circularQ,
1435 			   void **messagePtr1, u8 *pBC)
1436 {
1437 	struct mpi_msg_hdr	*msgHeader;
1438 	__le32	msgHeader_tmp;
1439 	u32 header_tmp;
1440 	do {
1441 		/* If there are not-yet-delivered messages ... */
1442 		if (le32_to_cpu(circularQ->producer_index)
1443 			!= circularQ->consumer_idx) {
1444 			/*Get the pointer to the circular queue buffer element*/
1445 			msgHeader = (struct mpi_msg_hdr *)
1446 				(circularQ->base_virt +
1447 				circularQ->consumer_idx * pm8001_ha->iomb_size);
1448 			/* read header */
1449 			header_tmp = pm8001_read_32(msgHeader);
1450 			msgHeader_tmp = cpu_to_le32(header_tmp);
1451 			PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
1452 				"outbound opcode msgheader:%x ci=%d pi=%d\n",
1453 				msgHeader_tmp, circularQ->consumer_idx,
1454 				circularQ->producer_index));
1455 			if (0 != (le32_to_cpu(msgHeader_tmp) & 0x80000000)) {
1456 				if (OPC_OUB_SKIP_ENTRY !=
1457 					(le32_to_cpu(msgHeader_tmp) & 0xfff)) {
1458 					*messagePtr1 =
1459 						((u8 *)msgHeader) +
1460 						sizeof(struct mpi_msg_hdr);
1461 					*pBC = (u8)((le32_to_cpu(msgHeader_tmp)
1462 						>> 24) & 0x1f);
1463 					PM8001_IO_DBG(pm8001_ha,
1464 						pm8001_printk(": CI=%d PI=%d "
1465 						"msgHeader=%x\n",
1466 						circularQ->consumer_idx,
1467 						circularQ->producer_index,
1468 						msgHeader_tmp));
1469 					return MPI_IO_STATUS_SUCCESS;
1470 				} else {
1471 					circularQ->consumer_idx =
1472 						(circularQ->consumer_idx +
1473 						((le32_to_cpu(msgHeader_tmp)
1474 						 >> 24) & 0x1f))
1475 							% PM8001_MPI_QUEUE;
1476 					msgHeader_tmp = 0;
1477 					pm8001_write_32(msgHeader, 0, 0);
1478 					/* update the CI of outbound queue */
1479 					pm8001_cw32(pm8001_ha,
1480 						circularQ->ci_pci_bar,
1481 						circularQ->ci_offset,
1482 						circularQ->consumer_idx);
1483 				}
1484 			} else {
1485 				circularQ->consumer_idx =
1486 					(circularQ->consumer_idx +
1487 					((le32_to_cpu(msgHeader_tmp) >> 24) &
1488 					0x1f)) % PM8001_MPI_QUEUE;
1489 				msgHeader_tmp = 0;
1490 				pm8001_write_32(msgHeader, 0, 0);
1491 				/* update the CI of outbound queue */
1492 				pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar,
1493 					circularQ->ci_offset,
1494 					circularQ->consumer_idx);
1495 				return MPI_IO_STATUS_FAIL;
1496 			}
1497 		} else {
1498 			u32 producer_index;
1499 			void *pi_virt = circularQ->pi_virt;
1500 			/* spurious interrupt during setup if
1501 			 * kexec-ing and driver doing a doorbell access
1502 			 * with the pre-kexec oq interrupt setup
1503 			 */
1504 			if (!pi_virt)
1505 				break;
1506 			/* Update the producer index from SPC */
1507 			producer_index = pm8001_read_32(pi_virt);
1508 			circularQ->producer_index = cpu_to_le32(producer_index);
1509 		}
1510 	} while (le32_to_cpu(circularQ->producer_index) !=
1511 		circularQ->consumer_idx);
1512 	/* while we don't have any more not-yet-delivered message */
1513 	/* report empty */
1514 	return MPI_IO_STATUS_BUSY;
1515 }
1516 
1517 void pm8001_work_fn(struct work_struct *work)
1518 {
1519 	struct pm8001_work *pw = container_of(work, struct pm8001_work, work);
1520 	struct pm8001_device *pm8001_dev;
1521 	struct domain_device *dev;
1522 
1523 	/*
1524 	 * So far, all users of this stash an associated structure here.
1525 	 * If we get here, and this pointer is null, then the action
1526 	 * was cancelled. This nullification happens when the device
1527 	 * goes away.
1528 	 */
1529 	pm8001_dev = pw->data; /* Most stash device structure */
1530 	if ((pm8001_dev == NULL)
1531 	 || ((pw->handler != IO_XFER_ERROR_BREAK)
1532 	  && (pm8001_dev->dev_type == SAS_PHY_UNUSED))) {
1533 		kfree(pw);
1534 		return;
1535 	}
1536 
1537 	switch (pw->handler) {
1538 	case IO_XFER_ERROR_BREAK:
1539 	{	/* This one stashes the sas_task instead */
1540 		struct sas_task *t = (struct sas_task *)pm8001_dev;
1541 		u32 tag;
1542 		struct pm8001_ccb_info *ccb;
1543 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1544 		unsigned long flags, flags1;
1545 		struct task_status_struct *ts;
1546 		int i;
1547 
1548 		if (pm8001_query_task(t) == TMF_RESP_FUNC_SUCC)
1549 			break; /* Task still on lu */
1550 		spin_lock_irqsave(&pm8001_ha->lock, flags);
1551 
1552 		spin_lock_irqsave(&t->task_state_lock, flags1);
1553 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
1554 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1555 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1556 			break; /* Task got completed by another */
1557 		}
1558 		spin_unlock_irqrestore(&t->task_state_lock, flags1);
1559 
1560 		/* Search for a possible ccb that matches the task */
1561 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1562 			ccb = &pm8001_ha->ccb_info[i];
1563 			tag = ccb->ccb_tag;
1564 			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
1565 				break;
1566 		}
1567 		if (!ccb) {
1568 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1569 			break; /* Task got freed by another */
1570 		}
1571 		ts = &t->task_status;
1572 		ts->resp = SAS_TASK_COMPLETE;
1573 		/* Force the midlayer to retry */
1574 		ts->stat = SAS_QUEUE_FULL;
1575 		pm8001_dev = ccb->device;
1576 		if (pm8001_dev)
1577 			pm8001_dev->running_req--;
1578 		spin_lock_irqsave(&t->task_state_lock, flags1);
1579 		t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
1580 		t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
1581 		t->task_state_flags |= SAS_TASK_STATE_DONE;
1582 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
1583 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1584 			PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p"
1585 				" done with event 0x%x resp 0x%x stat 0x%x but"
1586 				" aborted by upper layer!\n",
1587 				t, pw->handler, ts->resp, ts->stat));
1588 			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
1589 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1590 		} else {
1591 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1592 			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
1593 			mb();/* in order to force CPU ordering */
1594 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1595 			t->task_done(t);
1596 		}
1597 	}	break;
1598 	case IO_XFER_OPEN_RETRY_TIMEOUT:
1599 	{	/* This one stashes the sas_task instead */
1600 		struct sas_task *t = (struct sas_task *)pm8001_dev;
1601 		u32 tag;
1602 		struct pm8001_ccb_info *ccb;
1603 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1604 		unsigned long flags, flags1;
1605 		int i, ret = 0;
1606 
1607 		PM8001_IO_DBG(pm8001_ha,
1608 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
1609 
1610 		ret = pm8001_query_task(t);
1611 
1612 		PM8001_IO_DBG(pm8001_ha,
1613 			switch (ret) {
1614 			case TMF_RESP_FUNC_SUCC:
1615 				pm8001_printk("...Task on lu\n");
1616 				break;
1617 
1618 			case TMF_RESP_FUNC_COMPLETE:
1619 				pm8001_printk("...Task NOT on lu\n");
1620 				break;
1621 
1622 			default:
1623 				PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
1624 					"...query task failed!!!\n"));
1625 				break;
1626 			});
1627 
1628 		spin_lock_irqsave(&pm8001_ha->lock, flags);
1629 
1630 		spin_lock_irqsave(&t->task_state_lock, flags1);
1631 
1632 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
1633 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1634 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1635 			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
1636 				(void)pm8001_abort_task(t);
1637 			break; /* Task got completed by another */
1638 		}
1639 
1640 		spin_unlock_irqrestore(&t->task_state_lock, flags1);
1641 
1642 		/* Search for a possible ccb that matches the task */
1643 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1644 			ccb = &pm8001_ha->ccb_info[i];
1645 			tag = ccb->ccb_tag;
1646 			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
1647 				break;
1648 		}
1649 		if (!ccb) {
1650 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1651 			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
1652 				(void)pm8001_abort_task(t);
1653 			break; /* Task got freed by another */
1654 		}
1655 
1656 		pm8001_dev = ccb->device;
1657 		dev = pm8001_dev->sas_device;
1658 
1659 		switch (ret) {
1660 		case TMF_RESP_FUNC_SUCC: /* task on lu */
1661 			ccb->open_retry = 1; /* Snub completion */
1662 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1663 			ret = pm8001_abort_task(t);
1664 			ccb->open_retry = 0;
1665 			switch (ret) {
1666 			case TMF_RESP_FUNC_SUCC:
1667 			case TMF_RESP_FUNC_COMPLETE:
1668 				break;
1669 			default: /* device misbehavior */
1670 				ret = TMF_RESP_FUNC_FAILED;
1671 				PM8001_IO_DBG(pm8001_ha,
1672 					pm8001_printk("...Reset phy\n"));
1673 				pm8001_I_T_nexus_reset(dev);
1674 				break;
1675 			}
1676 			break;
1677 
1678 		case TMF_RESP_FUNC_COMPLETE: /* task not on lu */
1679 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1680 			/* Do we need to abort the task locally? */
1681 			break;
1682 
1683 		default: /* device misbehavior */
1684 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1685 			ret = TMF_RESP_FUNC_FAILED;
1686 			PM8001_IO_DBG(pm8001_ha,
1687 				pm8001_printk("...Reset phy\n"));
1688 			pm8001_I_T_nexus_reset(dev);
1689 		}
1690 
1691 		if (ret == TMF_RESP_FUNC_FAILED)
1692 			t = NULL;
1693 		pm8001_open_reject_retry(pm8001_ha, t, pm8001_dev);
1694 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("...Complete\n"));
1695 	}	break;
1696 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
1697 		dev = pm8001_dev->sas_device;
1698 		pm8001_I_T_nexus_event_handler(dev);
1699 		break;
1700 	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
1701 		dev = pm8001_dev->sas_device;
1702 		pm8001_I_T_nexus_reset(dev);
1703 		break;
1704 	case IO_DS_IN_ERROR:
1705 		dev = pm8001_dev->sas_device;
1706 		pm8001_I_T_nexus_reset(dev);
1707 		break;
1708 	case IO_DS_NON_OPERATIONAL:
1709 		dev = pm8001_dev->sas_device;
1710 		pm8001_I_T_nexus_reset(dev);
1711 		break;
1712 	}
1713 	kfree(pw);
1714 }
1715 
1716 int pm8001_handle_event(struct pm8001_hba_info *pm8001_ha, void *data,
1717 			       int handler)
1718 {
1719 	struct pm8001_work *pw;
1720 	int ret = 0;
1721 
1722 	pw = kmalloc(sizeof(struct pm8001_work), GFP_ATOMIC);
1723 	if (pw) {
1724 		pw->pm8001_ha = pm8001_ha;
1725 		pw->data = data;
1726 		pw->handler = handler;
1727 		INIT_WORK(&pw->work, pm8001_work_fn);
1728 		queue_work(pm8001_wq, &pw->work);
1729 	} else
1730 		ret = -ENOMEM;
1731 
1732 	return ret;
1733 }
1734 
1735 static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
1736 		struct pm8001_device *pm8001_ha_dev)
1737 {
1738 	int res;
1739 	u32 ccb_tag;
1740 	struct pm8001_ccb_info *ccb;
1741 	struct sas_task *task = NULL;
1742 	struct task_abort_req task_abort;
1743 	struct inbound_queue_table *circularQ;
1744 	u32 opc = OPC_INB_SATA_ABORT;
1745 	int ret;
1746 
1747 	if (!pm8001_ha_dev) {
1748 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("dev is null\n"));
1749 		return;
1750 	}
1751 
1752 	task = sas_alloc_slow_task(GFP_ATOMIC);
1753 
1754 	if (!task) {
1755 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("cannot "
1756 						"allocate task\n"));
1757 		return;
1758 	}
1759 
1760 	task->task_done = pm8001_task_done;
1761 
1762 	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
1763 	if (res)
1764 		return;
1765 
1766 	ccb = &pm8001_ha->ccb_info[ccb_tag];
1767 	ccb->device = pm8001_ha_dev;
1768 	ccb->ccb_tag = ccb_tag;
1769 	ccb->task = task;
1770 
1771 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
1772 
1773 	memset(&task_abort, 0, sizeof(task_abort));
1774 	task_abort.abort_all = cpu_to_le32(1);
1775 	task_abort.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
1776 	task_abort.tag = cpu_to_le32(ccb_tag);
1777 
1778 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
1779 			sizeof(task_abort), 0);
1780 	if (ret)
1781 		pm8001_tag_free(pm8001_ha, ccb_tag);
1782 
1783 }
1784 
1785 static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
1786 		struct pm8001_device *pm8001_ha_dev)
1787 {
1788 	struct sata_start_req sata_cmd;
1789 	int res;
1790 	u32 ccb_tag;
1791 	struct pm8001_ccb_info *ccb;
1792 	struct sas_task *task = NULL;
1793 	struct host_to_dev_fis fis;
1794 	struct domain_device *dev;
1795 	struct inbound_queue_table *circularQ;
1796 	u32 opc = OPC_INB_SATA_HOST_OPSTART;
1797 
1798 	task = sas_alloc_slow_task(GFP_ATOMIC);
1799 
1800 	if (!task) {
1801 		PM8001_FAIL_DBG(pm8001_ha,
1802 			pm8001_printk("cannot allocate task !!!\n"));
1803 		return;
1804 	}
1805 	task->task_done = pm8001_task_done;
1806 
1807 	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
1808 	if (res) {
1809 		sas_free_task(task);
1810 		PM8001_FAIL_DBG(pm8001_ha,
1811 			pm8001_printk("cannot allocate tag !!!\n"));
1812 		return;
1813 	}
1814 
1815 	/* allocate domain device by ourselves as libsas
1816 	 * is not going to provide any
1817 	*/
1818 	dev = kzalloc(sizeof(struct domain_device), GFP_ATOMIC);
1819 	if (!dev) {
1820 		sas_free_task(task);
1821 		pm8001_tag_free(pm8001_ha, ccb_tag);
1822 		PM8001_FAIL_DBG(pm8001_ha,
1823 			pm8001_printk("Domain device cannot be allocated\n"));
1824 		return;
1825 	}
1826 	task->dev = dev;
1827 	task->dev->lldd_dev = pm8001_ha_dev;
1828 
1829 	ccb = &pm8001_ha->ccb_info[ccb_tag];
1830 	ccb->device = pm8001_ha_dev;
1831 	ccb->ccb_tag = ccb_tag;
1832 	ccb->task = task;
1833 	pm8001_ha_dev->id |= NCQ_READ_LOG_FLAG;
1834 	pm8001_ha_dev->id |= NCQ_2ND_RLE_FLAG;
1835 
1836 	memset(&sata_cmd, 0, sizeof(sata_cmd));
1837 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
1838 
1839 	/* construct read log FIS */
1840 	memset(&fis, 0, sizeof(struct host_to_dev_fis));
1841 	fis.fis_type = 0x27;
1842 	fis.flags = 0x80;
1843 	fis.command = ATA_CMD_READ_LOG_EXT;
1844 	fis.lbal = 0x10;
1845 	fis.sector_count = 0x1;
1846 
1847 	sata_cmd.tag = cpu_to_le32(ccb_tag);
1848 	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
1849 	sata_cmd.ncqtag_atap_dir_m |= ((0x1 << 7) | (0x5 << 9));
1850 	memcpy(&sata_cmd.sata_fis, &fis, sizeof(struct host_to_dev_fis));
1851 
1852 	res = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
1853 			sizeof(sata_cmd), 0);
1854 	if (res) {
1855 		sas_free_task(task);
1856 		pm8001_tag_free(pm8001_ha, ccb_tag);
1857 		kfree(dev);
1858 	}
1859 }
1860 
1861 /**
1862  * mpi_ssp_completion- process the event that FW response to the SSP request.
1863  * @pm8001_ha: our hba card information
1864  * @piomb: the message contents of this outbound message.
1865  *
1866  * When FW has completed a ssp request for example a IO request, after it has
1867  * filled the SG data with the data, it will trigger this event represent
1868  * that he has finished the job,please check the coresponding buffer.
1869  * So we will tell the caller who maybe waiting the result to tell upper layer
1870  * that the task has been finished.
1871  */
1872 static void
1873 mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
1874 {
1875 	struct sas_task *t;
1876 	struct pm8001_ccb_info *ccb;
1877 	unsigned long flags;
1878 	u32 status;
1879 	u32 param;
1880 	u32 tag;
1881 	struct ssp_completion_resp *psspPayload;
1882 	struct task_status_struct *ts;
1883 	struct ssp_response_iu *iu;
1884 	struct pm8001_device *pm8001_dev;
1885 	psspPayload = (struct ssp_completion_resp *)(piomb + 4);
1886 	status = le32_to_cpu(psspPayload->status);
1887 	tag = le32_to_cpu(psspPayload->tag);
1888 	ccb = &pm8001_ha->ccb_info[tag];
1889 	if ((status == IO_ABORTED) && ccb->open_retry) {
1890 		/* Being completed by another */
1891 		ccb->open_retry = 0;
1892 		return;
1893 	}
1894 	pm8001_dev = ccb->device;
1895 	param = le32_to_cpu(psspPayload->param);
1896 
1897 	t = ccb->task;
1898 
1899 	if (status && status != IO_UNDERFLOW)
1900 		PM8001_FAIL_DBG(pm8001_ha,
1901 			pm8001_printk("sas IO status 0x%x\n", status));
1902 	if (unlikely(!t || !t->lldd_task || !t->dev))
1903 		return;
1904 	ts = &t->task_status;
1905 	/* Print sas address of IO failed device */
1906 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
1907 		(status != IO_UNDERFLOW))
1908 		PM8001_FAIL_DBG(pm8001_ha,
1909 			pm8001_printk("SAS Address of IO Failure Drive:"
1910 			"%016llx", SAS_ADDR(t->dev->sas_addr)));
1911 
1912 	if (status)
1913 		PM8001_IOERR_DBG(pm8001_ha, pm8001_printk(
1914 			"status:0x%x, tag:0x%x, task:0x%p\n",
1915 			status, tag, t));
1916 
1917 	switch (status) {
1918 	case IO_SUCCESS:
1919 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS"
1920 			",param = %d\n", param));
1921 		if (param == 0) {
1922 			ts->resp = SAS_TASK_COMPLETE;
1923 			ts->stat = SAM_STAT_GOOD;
1924 		} else {
1925 			ts->resp = SAS_TASK_COMPLETE;
1926 			ts->stat = SAS_PROTO_RESPONSE;
1927 			ts->residual = param;
1928 			iu = &psspPayload->ssp_resp_iu;
1929 			sas_ssp_task_response(pm8001_ha->dev, t, iu);
1930 		}
1931 		if (pm8001_dev)
1932 			pm8001_dev->running_req--;
1933 		break;
1934 	case IO_ABORTED:
1935 		PM8001_IO_DBG(pm8001_ha,
1936 			pm8001_printk("IO_ABORTED IOMB Tag\n"));
1937 		ts->resp = SAS_TASK_COMPLETE;
1938 		ts->stat = SAS_ABORTED_TASK;
1939 		break;
1940 	case IO_UNDERFLOW:
1941 		/* SSP Completion with error */
1942 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW"
1943 			",param = %d\n", param));
1944 		ts->resp = SAS_TASK_COMPLETE;
1945 		ts->stat = SAS_DATA_UNDERRUN;
1946 		ts->residual = param;
1947 		if (pm8001_dev)
1948 			pm8001_dev->running_req--;
1949 		break;
1950 	case IO_NO_DEVICE:
1951 		PM8001_IO_DBG(pm8001_ha,
1952 			pm8001_printk("IO_NO_DEVICE\n"));
1953 		ts->resp = SAS_TASK_UNDELIVERED;
1954 		ts->stat = SAS_PHY_DOWN;
1955 		break;
1956 	case IO_XFER_ERROR_BREAK:
1957 		PM8001_IO_DBG(pm8001_ha,
1958 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
1959 		ts->resp = SAS_TASK_COMPLETE;
1960 		ts->stat = SAS_OPEN_REJECT;
1961 		/* Force the midlayer to retry */
1962 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1963 		break;
1964 	case IO_XFER_ERROR_PHY_NOT_READY:
1965 		PM8001_IO_DBG(pm8001_ha,
1966 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
1967 		ts->resp = SAS_TASK_COMPLETE;
1968 		ts->stat = SAS_OPEN_REJECT;
1969 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1970 		break;
1971 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
1972 		PM8001_IO_DBG(pm8001_ha,
1973 		pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n"));
1974 		ts->resp = SAS_TASK_COMPLETE;
1975 		ts->stat = SAS_OPEN_REJECT;
1976 		ts->open_rej_reason = SAS_OREJ_EPROTO;
1977 		break;
1978 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
1979 		PM8001_IO_DBG(pm8001_ha,
1980 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
1981 		ts->resp = SAS_TASK_COMPLETE;
1982 		ts->stat = SAS_OPEN_REJECT;
1983 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1984 		break;
1985 	case IO_OPEN_CNX_ERROR_BREAK:
1986 		PM8001_IO_DBG(pm8001_ha,
1987 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
1988 		ts->resp = SAS_TASK_COMPLETE;
1989 		ts->stat = SAS_OPEN_REJECT;
1990 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1991 		break;
1992 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
1993 		PM8001_IO_DBG(pm8001_ha,
1994 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
1995 		ts->resp = SAS_TASK_COMPLETE;
1996 		ts->stat = SAS_OPEN_REJECT;
1997 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1998 		if (!t->uldd_task)
1999 			pm8001_handle_event(pm8001_ha,
2000 				pm8001_dev,
2001 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2002 		break;
2003 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2004 		PM8001_IO_DBG(pm8001_ha,
2005 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
2006 		ts->resp = SAS_TASK_COMPLETE;
2007 		ts->stat = SAS_OPEN_REJECT;
2008 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2009 		break;
2010 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2011 		PM8001_IO_DBG(pm8001_ha,
2012 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2013 			"NOT_SUPPORTED\n"));
2014 		ts->resp = SAS_TASK_COMPLETE;
2015 		ts->stat = SAS_OPEN_REJECT;
2016 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2017 		break;
2018 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2019 		PM8001_IO_DBG(pm8001_ha,
2020 			pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2021 		ts->resp = SAS_TASK_UNDELIVERED;
2022 		ts->stat = SAS_OPEN_REJECT;
2023 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2024 		break;
2025 	case IO_XFER_ERROR_NAK_RECEIVED:
2026 		PM8001_IO_DBG(pm8001_ha,
2027 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2028 		ts->resp = SAS_TASK_COMPLETE;
2029 		ts->stat = SAS_OPEN_REJECT;
2030 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2031 		break;
2032 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2033 		PM8001_IO_DBG(pm8001_ha,
2034 			pm8001_printk("IO_XFER_ERROR_ACK_NAK_TIMEOUT\n"));
2035 		ts->resp = SAS_TASK_COMPLETE;
2036 		ts->stat = SAS_NAK_R_ERR;
2037 		break;
2038 	case IO_XFER_ERROR_DMA:
2039 		PM8001_IO_DBG(pm8001_ha,
2040 		pm8001_printk("IO_XFER_ERROR_DMA\n"));
2041 		ts->resp = SAS_TASK_COMPLETE;
2042 		ts->stat = SAS_OPEN_REJECT;
2043 		break;
2044 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2045 		PM8001_IO_DBG(pm8001_ha,
2046 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2047 		ts->resp = SAS_TASK_COMPLETE;
2048 		ts->stat = SAS_OPEN_REJECT;
2049 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2050 		break;
2051 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2052 		PM8001_IO_DBG(pm8001_ha,
2053 			pm8001_printk("IO_XFER_ERROR_OFFSET_MISMATCH\n"));
2054 		ts->resp = SAS_TASK_COMPLETE;
2055 		ts->stat = SAS_OPEN_REJECT;
2056 		break;
2057 	case IO_PORT_IN_RESET:
2058 		PM8001_IO_DBG(pm8001_ha,
2059 			pm8001_printk("IO_PORT_IN_RESET\n"));
2060 		ts->resp = SAS_TASK_COMPLETE;
2061 		ts->stat = SAS_OPEN_REJECT;
2062 		break;
2063 	case IO_DS_NON_OPERATIONAL:
2064 		PM8001_IO_DBG(pm8001_ha,
2065 			pm8001_printk("IO_DS_NON_OPERATIONAL\n"));
2066 		ts->resp = SAS_TASK_COMPLETE;
2067 		ts->stat = SAS_OPEN_REJECT;
2068 		if (!t->uldd_task)
2069 			pm8001_handle_event(pm8001_ha,
2070 				pm8001_dev,
2071 				IO_DS_NON_OPERATIONAL);
2072 		break;
2073 	case IO_DS_IN_RECOVERY:
2074 		PM8001_IO_DBG(pm8001_ha,
2075 			pm8001_printk("IO_DS_IN_RECOVERY\n"));
2076 		ts->resp = SAS_TASK_COMPLETE;
2077 		ts->stat = SAS_OPEN_REJECT;
2078 		break;
2079 	case IO_TM_TAG_NOT_FOUND:
2080 		PM8001_IO_DBG(pm8001_ha,
2081 			pm8001_printk("IO_TM_TAG_NOT_FOUND\n"));
2082 		ts->resp = SAS_TASK_COMPLETE;
2083 		ts->stat = SAS_OPEN_REJECT;
2084 		break;
2085 	case IO_SSP_EXT_IU_ZERO_LEN_ERROR:
2086 		PM8001_IO_DBG(pm8001_ha,
2087 			pm8001_printk("IO_SSP_EXT_IU_ZERO_LEN_ERROR\n"));
2088 		ts->resp = SAS_TASK_COMPLETE;
2089 		ts->stat = SAS_OPEN_REJECT;
2090 		break;
2091 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2092 		PM8001_IO_DBG(pm8001_ha,
2093 			pm8001_printk("IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n"));
2094 		ts->resp = SAS_TASK_COMPLETE;
2095 		ts->stat = SAS_OPEN_REJECT;
2096 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2097 		break;
2098 	default:
2099 		PM8001_DEVIO_DBG(pm8001_ha,
2100 			pm8001_printk("Unknown status 0x%x\n", status));
2101 		/* not allowed case. Therefore, return failed status */
2102 		ts->resp = SAS_TASK_COMPLETE;
2103 		ts->stat = SAS_OPEN_REJECT;
2104 		break;
2105 	}
2106 	PM8001_IO_DBG(pm8001_ha,
2107 		pm8001_printk("scsi_status = %x\n ",
2108 		psspPayload->ssp_resp_iu.status));
2109 	spin_lock_irqsave(&t->task_state_lock, flags);
2110 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2111 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2112 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2113 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2114 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2115 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p done with"
2116 			" io_status 0x%x resp 0x%x "
2117 			"stat 0x%x but aborted by upper layer!\n",
2118 			t, status, ts->resp, ts->stat));
2119 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2120 	} else {
2121 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2122 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2123 		mb();/* in order to force CPU ordering */
2124 		t->task_done(t);
2125 	}
2126 }
2127 
2128 /*See the comments for mpi_ssp_completion */
2129 static void mpi_ssp_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
2130 {
2131 	struct sas_task *t;
2132 	unsigned long flags;
2133 	struct task_status_struct *ts;
2134 	struct pm8001_ccb_info *ccb;
2135 	struct pm8001_device *pm8001_dev;
2136 	struct ssp_event_resp *psspPayload =
2137 		(struct ssp_event_resp *)(piomb + 4);
2138 	u32 event = le32_to_cpu(psspPayload->event);
2139 	u32 tag = le32_to_cpu(psspPayload->tag);
2140 	u32 port_id = le32_to_cpu(psspPayload->port_id);
2141 	u32 dev_id = le32_to_cpu(psspPayload->device_id);
2142 
2143 	ccb = &pm8001_ha->ccb_info[tag];
2144 	t = ccb->task;
2145 	pm8001_dev = ccb->device;
2146 	if (event)
2147 		PM8001_FAIL_DBG(pm8001_ha,
2148 			pm8001_printk("sas IO status 0x%x\n", event));
2149 	if (unlikely(!t || !t->lldd_task || !t->dev))
2150 		return;
2151 	ts = &t->task_status;
2152 	PM8001_DEVIO_DBG(pm8001_ha,
2153 		pm8001_printk("port_id = %x,device_id = %x\n",
2154 		port_id, dev_id));
2155 	switch (event) {
2156 	case IO_OVERFLOW:
2157 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW\n");)
2158 		ts->resp = SAS_TASK_COMPLETE;
2159 		ts->stat = SAS_DATA_OVERRUN;
2160 		ts->residual = 0;
2161 		if (pm8001_dev)
2162 			pm8001_dev->running_req--;
2163 		break;
2164 	case IO_XFER_ERROR_BREAK:
2165 		PM8001_IO_DBG(pm8001_ha,
2166 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
2167 		pm8001_handle_event(pm8001_ha, t, IO_XFER_ERROR_BREAK);
2168 		return;
2169 	case IO_XFER_ERROR_PHY_NOT_READY:
2170 		PM8001_IO_DBG(pm8001_ha,
2171 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
2172 		ts->resp = SAS_TASK_COMPLETE;
2173 		ts->stat = SAS_OPEN_REJECT;
2174 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2175 		break;
2176 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2177 		PM8001_IO_DBG(pm8001_ha,
2178 			pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT"
2179 			"_SUPPORTED\n"));
2180 		ts->resp = SAS_TASK_COMPLETE;
2181 		ts->stat = SAS_OPEN_REJECT;
2182 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2183 		break;
2184 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2185 		PM8001_IO_DBG(pm8001_ha,
2186 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
2187 		ts->resp = SAS_TASK_COMPLETE;
2188 		ts->stat = SAS_OPEN_REJECT;
2189 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2190 		break;
2191 	case IO_OPEN_CNX_ERROR_BREAK:
2192 		PM8001_IO_DBG(pm8001_ha,
2193 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
2194 		ts->resp = SAS_TASK_COMPLETE;
2195 		ts->stat = SAS_OPEN_REJECT;
2196 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2197 		break;
2198 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2199 		PM8001_IO_DBG(pm8001_ha,
2200 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
2201 		ts->resp = SAS_TASK_COMPLETE;
2202 		ts->stat = SAS_OPEN_REJECT;
2203 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2204 		if (!t->uldd_task)
2205 			pm8001_handle_event(pm8001_ha,
2206 				pm8001_dev,
2207 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2208 		break;
2209 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2210 		PM8001_IO_DBG(pm8001_ha,
2211 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
2212 		ts->resp = SAS_TASK_COMPLETE;
2213 		ts->stat = SAS_OPEN_REJECT;
2214 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2215 		break;
2216 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2217 		PM8001_IO_DBG(pm8001_ha,
2218 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2219 			"NOT_SUPPORTED\n"));
2220 		ts->resp = SAS_TASK_COMPLETE;
2221 		ts->stat = SAS_OPEN_REJECT;
2222 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2223 		break;
2224 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2225 		PM8001_IO_DBG(pm8001_ha,
2226 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2227 		ts->resp = SAS_TASK_COMPLETE;
2228 		ts->stat = SAS_OPEN_REJECT;
2229 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2230 		break;
2231 	case IO_XFER_ERROR_NAK_RECEIVED:
2232 		PM8001_IO_DBG(pm8001_ha,
2233 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2234 		ts->resp = SAS_TASK_COMPLETE;
2235 		ts->stat = SAS_OPEN_REJECT;
2236 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2237 		break;
2238 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2239 		PM8001_IO_DBG(pm8001_ha,
2240 			pm8001_printk("IO_XFER_ERROR_ACK_NAK_TIMEOUT\n"));
2241 		ts->resp = SAS_TASK_COMPLETE;
2242 		ts->stat = SAS_NAK_R_ERR;
2243 		break;
2244 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2245 		PM8001_IO_DBG(pm8001_ha,
2246 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2247 		pm8001_handle_event(pm8001_ha, t, IO_XFER_OPEN_RETRY_TIMEOUT);
2248 		return;
2249 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2250 		PM8001_IO_DBG(pm8001_ha,
2251 			pm8001_printk("IO_XFER_ERROR_UNEXPECTED_PHASE\n"));
2252 		ts->resp = SAS_TASK_COMPLETE;
2253 		ts->stat = SAS_DATA_OVERRUN;
2254 		break;
2255 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2256 		PM8001_IO_DBG(pm8001_ha,
2257 			pm8001_printk("IO_XFER_ERROR_XFER_RDY_OVERRUN\n"));
2258 		ts->resp = SAS_TASK_COMPLETE;
2259 		ts->stat = SAS_DATA_OVERRUN;
2260 		break;
2261 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2262 		PM8001_IO_DBG(pm8001_ha,
2263 		       pm8001_printk("IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n"));
2264 		ts->resp = SAS_TASK_COMPLETE;
2265 		ts->stat = SAS_DATA_OVERRUN;
2266 		break;
2267 	case IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT:
2268 		PM8001_IO_DBG(pm8001_ha,
2269 		pm8001_printk("IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT\n"));
2270 		ts->resp = SAS_TASK_COMPLETE;
2271 		ts->stat = SAS_DATA_OVERRUN;
2272 		break;
2273 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2274 		PM8001_IO_DBG(pm8001_ha,
2275 			pm8001_printk("IO_XFER_ERROR_OFFSET_MISMATCH\n"));
2276 		ts->resp = SAS_TASK_COMPLETE;
2277 		ts->stat = SAS_DATA_OVERRUN;
2278 		break;
2279 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2280 		PM8001_IO_DBG(pm8001_ha,
2281 			pm8001_printk("IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n"));
2282 		ts->resp = SAS_TASK_COMPLETE;
2283 		ts->stat = SAS_DATA_OVERRUN;
2284 		break;
2285 	case IO_XFER_CMD_FRAME_ISSUED:
2286 		PM8001_IO_DBG(pm8001_ha,
2287 			pm8001_printk("  IO_XFER_CMD_FRAME_ISSUED\n"));
2288 		return;
2289 	default:
2290 		PM8001_DEVIO_DBG(pm8001_ha,
2291 			pm8001_printk("Unknown status 0x%x\n", event));
2292 		/* not allowed case. Therefore, return failed status */
2293 		ts->resp = SAS_TASK_COMPLETE;
2294 		ts->stat = SAS_DATA_OVERRUN;
2295 		break;
2296 	}
2297 	spin_lock_irqsave(&t->task_state_lock, flags);
2298 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2299 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2300 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2301 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2302 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2303 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p done with"
2304 			" event 0x%x resp 0x%x "
2305 			"stat 0x%x but aborted by upper layer!\n",
2306 			t, event, ts->resp, ts->stat));
2307 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2308 	} else {
2309 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2310 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2311 		mb();/* in order to force CPU ordering */
2312 		t->task_done(t);
2313 	}
2314 }
2315 
2316 /*See the comments for mpi_ssp_completion */
2317 static void
2318 mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2319 {
2320 	struct sas_task *t;
2321 	struct pm8001_ccb_info *ccb;
2322 	u32 param;
2323 	u32 status;
2324 	u32 tag;
2325 	int i, j;
2326 	u8 sata_addr_low[4];
2327 	u32 temp_sata_addr_low;
2328 	u8 sata_addr_hi[4];
2329 	u32 temp_sata_addr_hi;
2330 	struct sata_completion_resp *psataPayload;
2331 	struct task_status_struct *ts;
2332 	struct ata_task_resp *resp ;
2333 	u32 *sata_resp;
2334 	struct pm8001_device *pm8001_dev;
2335 	unsigned long flags;
2336 
2337 	psataPayload = (struct sata_completion_resp *)(piomb + 4);
2338 	status = le32_to_cpu(psataPayload->status);
2339 	tag = le32_to_cpu(psataPayload->tag);
2340 
2341 	if (!tag) {
2342 		PM8001_FAIL_DBG(pm8001_ha,
2343 			pm8001_printk("tag null\n"));
2344 		return;
2345 	}
2346 	ccb = &pm8001_ha->ccb_info[tag];
2347 	param = le32_to_cpu(psataPayload->param);
2348 	if (ccb) {
2349 		t = ccb->task;
2350 		pm8001_dev = ccb->device;
2351 	} else {
2352 		PM8001_FAIL_DBG(pm8001_ha,
2353 			pm8001_printk("ccb null\n"));
2354 		return;
2355 	}
2356 
2357 	if (t) {
2358 		if (t->dev && (t->dev->lldd_dev))
2359 			pm8001_dev = t->dev->lldd_dev;
2360 	} else {
2361 		PM8001_FAIL_DBG(pm8001_ha,
2362 			pm8001_printk("task null\n"));
2363 		return;
2364 	}
2365 
2366 	if ((pm8001_dev && !(pm8001_dev->id & NCQ_READ_LOG_FLAG))
2367 		&& unlikely(!t || !t->lldd_task || !t->dev)) {
2368 		PM8001_FAIL_DBG(pm8001_ha,
2369 			pm8001_printk("task or dev null\n"));
2370 		return;
2371 	}
2372 
2373 	ts = &t->task_status;
2374 	if (!ts) {
2375 		PM8001_FAIL_DBG(pm8001_ha,
2376 			pm8001_printk("ts null\n"));
2377 		return;
2378 	}
2379 
2380 	if (status)
2381 		PM8001_IOERR_DBG(pm8001_ha, pm8001_printk(
2382 			"status:0x%x, tag:0x%x, task::0x%p\n",
2383 			status, tag, t));
2384 
2385 	/* Print sas address of IO failed device */
2386 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
2387 		(status != IO_UNDERFLOW)) {
2388 		if (!((t->dev->parent) &&
2389 			(dev_is_expander(t->dev->parent->dev_type)))) {
2390 			for (i = 0 , j = 4; j <= 7 && i <= 3; i++ , j++)
2391 				sata_addr_low[i] = pm8001_ha->sas_addr[j];
2392 			for (i = 0 , j = 0; j <= 3 && i <= 3; i++ , j++)
2393 				sata_addr_hi[i] = pm8001_ha->sas_addr[j];
2394 			memcpy(&temp_sata_addr_low, sata_addr_low,
2395 				sizeof(sata_addr_low));
2396 			memcpy(&temp_sata_addr_hi, sata_addr_hi,
2397 				sizeof(sata_addr_hi));
2398 			temp_sata_addr_hi = (((temp_sata_addr_hi >> 24) & 0xff)
2399 						|((temp_sata_addr_hi << 8) &
2400 						0xff0000) |
2401 						((temp_sata_addr_hi >> 8)
2402 						& 0xff00) |
2403 						((temp_sata_addr_hi << 24) &
2404 						0xff000000));
2405 			temp_sata_addr_low = ((((temp_sata_addr_low >> 24)
2406 						& 0xff) |
2407 						((temp_sata_addr_low << 8)
2408 						& 0xff0000) |
2409 						((temp_sata_addr_low >> 8)
2410 						& 0xff00) |
2411 						((temp_sata_addr_low << 24)
2412 						& 0xff000000)) +
2413 						pm8001_dev->attached_phy +
2414 						0x10);
2415 			PM8001_FAIL_DBG(pm8001_ha,
2416 				pm8001_printk("SAS Address of IO Failure Drive:"
2417 				"%08x%08x", temp_sata_addr_hi,
2418 					temp_sata_addr_low));
2419 		} else {
2420 			PM8001_FAIL_DBG(pm8001_ha,
2421 				pm8001_printk("SAS Address of IO Failure Drive:"
2422 				"%016llx", SAS_ADDR(t->dev->sas_addr)));
2423 		}
2424 	}
2425 	switch (status) {
2426 	case IO_SUCCESS:
2427 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS\n"));
2428 		if (param == 0) {
2429 			ts->resp = SAS_TASK_COMPLETE;
2430 			ts->stat = SAM_STAT_GOOD;
2431 			/* check if response is for SEND READ LOG */
2432 			if (pm8001_dev &&
2433 				(pm8001_dev->id & NCQ_READ_LOG_FLAG)) {
2434 				/* set new bit for abort_all */
2435 				pm8001_dev->id |= NCQ_ABORT_ALL_FLAG;
2436 				/* clear bit for read log */
2437 				pm8001_dev->id = pm8001_dev->id & 0x7FFFFFFF;
2438 				pm8001_send_abort_all(pm8001_ha, pm8001_dev);
2439 				/* Free the tag */
2440 				pm8001_tag_free(pm8001_ha, tag);
2441 				sas_free_task(t);
2442 				return;
2443 			}
2444 		} else {
2445 			u8 len;
2446 			ts->resp = SAS_TASK_COMPLETE;
2447 			ts->stat = SAS_PROTO_RESPONSE;
2448 			ts->residual = param;
2449 			PM8001_IO_DBG(pm8001_ha,
2450 				pm8001_printk("SAS_PROTO_RESPONSE len = %d\n",
2451 				param));
2452 			sata_resp = &psataPayload->sata_resp[0];
2453 			resp = (struct ata_task_resp *)ts->buf;
2454 			if (t->ata_task.dma_xfer == 0 &&
2455 			    t->data_dir == DMA_FROM_DEVICE) {
2456 				len = sizeof(struct pio_setup_fis);
2457 				PM8001_IO_DBG(pm8001_ha,
2458 				pm8001_printk("PIO read len = %d\n", len));
2459 			} else if (t->ata_task.use_ncq) {
2460 				len = sizeof(struct set_dev_bits_fis);
2461 				PM8001_IO_DBG(pm8001_ha,
2462 					pm8001_printk("FPDMA len = %d\n", len));
2463 			} else {
2464 				len = sizeof(struct dev_to_host_fis);
2465 				PM8001_IO_DBG(pm8001_ha,
2466 				pm8001_printk("other len = %d\n", len));
2467 			}
2468 			if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) {
2469 				resp->frame_len = len;
2470 				memcpy(&resp->ending_fis[0], sata_resp, len);
2471 				ts->buf_valid_size = sizeof(*resp);
2472 			} else
2473 				PM8001_IO_DBG(pm8001_ha,
2474 					pm8001_printk("response to large\n"));
2475 		}
2476 		if (pm8001_dev)
2477 			pm8001_dev->running_req--;
2478 		break;
2479 	case IO_ABORTED:
2480 		PM8001_IO_DBG(pm8001_ha,
2481 			pm8001_printk("IO_ABORTED IOMB Tag\n"));
2482 		ts->resp = SAS_TASK_COMPLETE;
2483 		ts->stat = SAS_ABORTED_TASK;
2484 		if (pm8001_dev)
2485 			pm8001_dev->running_req--;
2486 		break;
2487 		/* following cases are to do cases */
2488 	case IO_UNDERFLOW:
2489 		/* SATA Completion with error */
2490 		PM8001_IO_DBG(pm8001_ha,
2491 			pm8001_printk("IO_UNDERFLOW param = %d\n", param));
2492 		ts->resp = SAS_TASK_COMPLETE;
2493 		ts->stat = SAS_DATA_UNDERRUN;
2494 		ts->residual =  param;
2495 		if (pm8001_dev)
2496 			pm8001_dev->running_req--;
2497 		break;
2498 	case IO_NO_DEVICE:
2499 		PM8001_IO_DBG(pm8001_ha,
2500 			pm8001_printk("IO_NO_DEVICE\n"));
2501 		ts->resp = SAS_TASK_UNDELIVERED;
2502 		ts->stat = SAS_PHY_DOWN;
2503 		break;
2504 	case IO_XFER_ERROR_BREAK:
2505 		PM8001_IO_DBG(pm8001_ha,
2506 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
2507 		ts->resp = SAS_TASK_COMPLETE;
2508 		ts->stat = SAS_INTERRUPTED;
2509 		break;
2510 	case IO_XFER_ERROR_PHY_NOT_READY:
2511 		PM8001_IO_DBG(pm8001_ha,
2512 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
2513 		ts->resp = SAS_TASK_COMPLETE;
2514 		ts->stat = SAS_OPEN_REJECT;
2515 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2516 		break;
2517 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2518 		PM8001_IO_DBG(pm8001_ha,
2519 			pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT"
2520 			"_SUPPORTED\n"));
2521 		ts->resp = SAS_TASK_COMPLETE;
2522 		ts->stat = SAS_OPEN_REJECT;
2523 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2524 		break;
2525 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2526 		PM8001_IO_DBG(pm8001_ha,
2527 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
2528 		ts->resp = SAS_TASK_COMPLETE;
2529 		ts->stat = SAS_OPEN_REJECT;
2530 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2531 		break;
2532 	case IO_OPEN_CNX_ERROR_BREAK:
2533 		PM8001_IO_DBG(pm8001_ha,
2534 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
2535 		ts->resp = SAS_TASK_COMPLETE;
2536 		ts->stat = SAS_OPEN_REJECT;
2537 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2538 		break;
2539 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2540 		PM8001_IO_DBG(pm8001_ha,
2541 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
2542 		ts->resp = SAS_TASK_COMPLETE;
2543 		ts->stat = SAS_DEV_NO_RESPONSE;
2544 		if (!t->uldd_task) {
2545 			pm8001_handle_event(pm8001_ha,
2546 				pm8001_dev,
2547 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2548 			ts->resp = SAS_TASK_UNDELIVERED;
2549 			ts->stat = SAS_QUEUE_FULL;
2550 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2551 			return;
2552 		}
2553 		break;
2554 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2555 		PM8001_IO_DBG(pm8001_ha,
2556 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
2557 		ts->resp = SAS_TASK_UNDELIVERED;
2558 		ts->stat = SAS_OPEN_REJECT;
2559 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2560 		if (!t->uldd_task) {
2561 			pm8001_handle_event(pm8001_ha,
2562 				pm8001_dev,
2563 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2564 			ts->resp = SAS_TASK_UNDELIVERED;
2565 			ts->stat = SAS_QUEUE_FULL;
2566 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2567 			return;
2568 		}
2569 		break;
2570 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2571 		PM8001_IO_DBG(pm8001_ha,
2572 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2573 			"NOT_SUPPORTED\n"));
2574 		ts->resp = SAS_TASK_COMPLETE;
2575 		ts->stat = SAS_OPEN_REJECT;
2576 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2577 		break;
2578 	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
2579 		PM8001_IO_DBG(pm8001_ha,
2580 			pm8001_printk("IO_OPEN_CNX_ERROR_STP_RESOURCES"
2581 			"_BUSY\n"));
2582 		ts->resp = SAS_TASK_COMPLETE;
2583 		ts->stat = SAS_DEV_NO_RESPONSE;
2584 		if (!t->uldd_task) {
2585 			pm8001_handle_event(pm8001_ha,
2586 				pm8001_dev,
2587 				IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY);
2588 			ts->resp = SAS_TASK_UNDELIVERED;
2589 			ts->stat = SAS_QUEUE_FULL;
2590 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2591 			return;
2592 		}
2593 		break;
2594 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2595 		PM8001_IO_DBG(pm8001_ha,
2596 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2597 		ts->resp = SAS_TASK_COMPLETE;
2598 		ts->stat = SAS_OPEN_REJECT;
2599 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2600 		break;
2601 	case IO_XFER_ERROR_NAK_RECEIVED:
2602 		PM8001_IO_DBG(pm8001_ha,
2603 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2604 		ts->resp = SAS_TASK_COMPLETE;
2605 		ts->stat = SAS_NAK_R_ERR;
2606 		break;
2607 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2608 		PM8001_IO_DBG(pm8001_ha,
2609 			pm8001_printk("IO_XFER_ERROR_ACK_NAK_TIMEOUT\n"));
2610 		ts->resp = SAS_TASK_COMPLETE;
2611 		ts->stat = SAS_NAK_R_ERR;
2612 		break;
2613 	case IO_XFER_ERROR_DMA:
2614 		PM8001_IO_DBG(pm8001_ha,
2615 			pm8001_printk("IO_XFER_ERROR_DMA\n"));
2616 		ts->resp = SAS_TASK_COMPLETE;
2617 		ts->stat = SAS_ABORTED_TASK;
2618 		break;
2619 	case IO_XFER_ERROR_SATA_LINK_TIMEOUT:
2620 		PM8001_IO_DBG(pm8001_ha,
2621 			pm8001_printk("IO_XFER_ERROR_SATA_LINK_TIMEOUT\n"));
2622 		ts->resp = SAS_TASK_UNDELIVERED;
2623 		ts->stat = SAS_DEV_NO_RESPONSE;
2624 		break;
2625 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2626 		PM8001_IO_DBG(pm8001_ha,
2627 			pm8001_printk("IO_XFER_ERROR_REJECTED_NCQ_MODE\n"));
2628 		ts->resp = SAS_TASK_COMPLETE;
2629 		ts->stat = SAS_DATA_UNDERRUN;
2630 		break;
2631 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2632 		PM8001_IO_DBG(pm8001_ha,
2633 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2634 		ts->resp = SAS_TASK_COMPLETE;
2635 		ts->stat = SAS_OPEN_TO;
2636 		break;
2637 	case IO_PORT_IN_RESET:
2638 		PM8001_IO_DBG(pm8001_ha,
2639 			pm8001_printk("IO_PORT_IN_RESET\n"));
2640 		ts->resp = SAS_TASK_COMPLETE;
2641 		ts->stat = SAS_DEV_NO_RESPONSE;
2642 		break;
2643 	case IO_DS_NON_OPERATIONAL:
2644 		PM8001_IO_DBG(pm8001_ha,
2645 			pm8001_printk("IO_DS_NON_OPERATIONAL\n"));
2646 		ts->resp = SAS_TASK_COMPLETE;
2647 		ts->stat = SAS_DEV_NO_RESPONSE;
2648 		if (!t->uldd_task) {
2649 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2650 				    IO_DS_NON_OPERATIONAL);
2651 			ts->resp = SAS_TASK_UNDELIVERED;
2652 			ts->stat = SAS_QUEUE_FULL;
2653 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2654 			return;
2655 		}
2656 		break;
2657 	case IO_DS_IN_RECOVERY:
2658 		PM8001_IO_DBG(pm8001_ha,
2659 			pm8001_printk("  IO_DS_IN_RECOVERY\n"));
2660 		ts->resp = SAS_TASK_COMPLETE;
2661 		ts->stat = SAS_DEV_NO_RESPONSE;
2662 		break;
2663 	case IO_DS_IN_ERROR:
2664 		PM8001_IO_DBG(pm8001_ha,
2665 			pm8001_printk("IO_DS_IN_ERROR\n"));
2666 		ts->resp = SAS_TASK_COMPLETE;
2667 		ts->stat = SAS_DEV_NO_RESPONSE;
2668 		if (!t->uldd_task) {
2669 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2670 				    IO_DS_IN_ERROR);
2671 			ts->resp = SAS_TASK_UNDELIVERED;
2672 			ts->stat = SAS_QUEUE_FULL;
2673 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2674 			return;
2675 		}
2676 		break;
2677 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2678 		PM8001_IO_DBG(pm8001_ha,
2679 			pm8001_printk("IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n"));
2680 		ts->resp = SAS_TASK_COMPLETE;
2681 		ts->stat = SAS_OPEN_REJECT;
2682 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2683 		break;
2684 	default:
2685 		PM8001_DEVIO_DBG(pm8001_ha,
2686 			pm8001_printk("Unknown status 0x%x\n", status));
2687 		/* not allowed case. Therefore, return failed status */
2688 		ts->resp = SAS_TASK_COMPLETE;
2689 		ts->stat = SAS_DEV_NO_RESPONSE;
2690 		break;
2691 	}
2692 	spin_lock_irqsave(&t->task_state_lock, flags);
2693 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2694 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2695 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2696 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2697 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2698 		PM8001_FAIL_DBG(pm8001_ha,
2699 			pm8001_printk("task 0x%p done with io_status 0x%x"
2700 			" resp 0x%x stat 0x%x but aborted by upper layer!\n",
2701 			t, status, ts->resp, ts->stat));
2702 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2703 	} else {
2704 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2705 		pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2706 	}
2707 }
2708 
2709 /*See the comments for mpi_ssp_completion */
2710 static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
2711 {
2712 	struct sas_task *t;
2713 	struct task_status_struct *ts;
2714 	struct pm8001_ccb_info *ccb;
2715 	struct pm8001_device *pm8001_dev;
2716 	struct sata_event_resp *psataPayload =
2717 		(struct sata_event_resp *)(piomb + 4);
2718 	u32 event = le32_to_cpu(psataPayload->event);
2719 	u32 tag = le32_to_cpu(psataPayload->tag);
2720 	u32 port_id = le32_to_cpu(psataPayload->port_id);
2721 	u32 dev_id = le32_to_cpu(psataPayload->device_id);
2722 	unsigned long flags;
2723 
2724 	ccb = &pm8001_ha->ccb_info[tag];
2725 
2726 	if (ccb) {
2727 		t = ccb->task;
2728 		pm8001_dev = ccb->device;
2729 	} else {
2730 		PM8001_FAIL_DBG(pm8001_ha,
2731 			pm8001_printk("No CCB !!!. returning\n"));
2732 	}
2733 	if (event)
2734 		PM8001_FAIL_DBG(pm8001_ha,
2735 			pm8001_printk("SATA EVENT 0x%x\n", event));
2736 
2737 	/* Check if this is NCQ error */
2738 	if (event == IO_XFER_ERROR_ABORTED_NCQ_MODE) {
2739 		/* find device using device id */
2740 		pm8001_dev = pm8001_find_dev(pm8001_ha, dev_id);
2741 		/* send read log extension */
2742 		if (pm8001_dev)
2743 			pm8001_send_read_log(pm8001_ha, pm8001_dev);
2744 		return;
2745 	}
2746 
2747 	ccb = &pm8001_ha->ccb_info[tag];
2748 	t = ccb->task;
2749 	pm8001_dev = ccb->device;
2750 	if (event)
2751 		PM8001_FAIL_DBG(pm8001_ha,
2752 			pm8001_printk("sata IO status 0x%x\n", event));
2753 	if (unlikely(!t || !t->lldd_task || !t->dev))
2754 		return;
2755 	ts = &t->task_status;
2756 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
2757 		"port_id:0x%x, device_id:0x%x, tag:0x%x, event:0x%x\n",
2758 		port_id, dev_id, tag, event));
2759 	switch (event) {
2760 	case IO_OVERFLOW:
2761 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW\n"));
2762 		ts->resp = SAS_TASK_COMPLETE;
2763 		ts->stat = SAS_DATA_OVERRUN;
2764 		ts->residual = 0;
2765 		if (pm8001_dev)
2766 			pm8001_dev->running_req--;
2767 		break;
2768 	case IO_XFER_ERROR_BREAK:
2769 		PM8001_IO_DBG(pm8001_ha,
2770 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
2771 		ts->resp = SAS_TASK_COMPLETE;
2772 		ts->stat = SAS_INTERRUPTED;
2773 		break;
2774 	case IO_XFER_ERROR_PHY_NOT_READY:
2775 		PM8001_IO_DBG(pm8001_ha,
2776 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
2777 		ts->resp = SAS_TASK_COMPLETE;
2778 		ts->stat = SAS_OPEN_REJECT;
2779 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2780 		break;
2781 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2782 		PM8001_IO_DBG(pm8001_ha,
2783 			pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT"
2784 			"_SUPPORTED\n"));
2785 		ts->resp = SAS_TASK_COMPLETE;
2786 		ts->stat = SAS_OPEN_REJECT;
2787 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2788 		break;
2789 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2790 		PM8001_IO_DBG(pm8001_ha,
2791 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
2792 		ts->resp = SAS_TASK_COMPLETE;
2793 		ts->stat = SAS_OPEN_REJECT;
2794 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2795 		break;
2796 	case IO_OPEN_CNX_ERROR_BREAK:
2797 		PM8001_IO_DBG(pm8001_ha,
2798 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
2799 		ts->resp = SAS_TASK_COMPLETE;
2800 		ts->stat = SAS_OPEN_REJECT;
2801 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2802 		break;
2803 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2804 		PM8001_IO_DBG(pm8001_ha,
2805 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
2806 		ts->resp = SAS_TASK_UNDELIVERED;
2807 		ts->stat = SAS_DEV_NO_RESPONSE;
2808 		if (!t->uldd_task) {
2809 			pm8001_handle_event(pm8001_ha,
2810 				pm8001_dev,
2811 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2812 			ts->resp = SAS_TASK_COMPLETE;
2813 			ts->stat = SAS_QUEUE_FULL;
2814 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2815 			return;
2816 		}
2817 		break;
2818 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2819 		PM8001_IO_DBG(pm8001_ha,
2820 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
2821 		ts->resp = SAS_TASK_UNDELIVERED;
2822 		ts->stat = SAS_OPEN_REJECT;
2823 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2824 		break;
2825 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2826 		PM8001_IO_DBG(pm8001_ha,
2827 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2828 			"NOT_SUPPORTED\n"));
2829 		ts->resp = SAS_TASK_COMPLETE;
2830 		ts->stat = SAS_OPEN_REJECT;
2831 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2832 		break;
2833 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2834 		PM8001_IO_DBG(pm8001_ha,
2835 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2836 		ts->resp = SAS_TASK_COMPLETE;
2837 		ts->stat = SAS_OPEN_REJECT;
2838 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2839 		break;
2840 	case IO_XFER_ERROR_NAK_RECEIVED:
2841 		PM8001_IO_DBG(pm8001_ha,
2842 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2843 		ts->resp = SAS_TASK_COMPLETE;
2844 		ts->stat = SAS_NAK_R_ERR;
2845 		break;
2846 	case IO_XFER_ERROR_PEER_ABORTED:
2847 		PM8001_IO_DBG(pm8001_ha,
2848 			pm8001_printk("IO_XFER_ERROR_PEER_ABORTED\n"));
2849 		ts->resp = SAS_TASK_COMPLETE;
2850 		ts->stat = SAS_NAK_R_ERR;
2851 		break;
2852 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2853 		PM8001_IO_DBG(pm8001_ha,
2854 			pm8001_printk("IO_XFER_ERROR_REJECTED_NCQ_MODE\n"));
2855 		ts->resp = SAS_TASK_COMPLETE;
2856 		ts->stat = SAS_DATA_UNDERRUN;
2857 		break;
2858 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2859 		PM8001_IO_DBG(pm8001_ha,
2860 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2861 		ts->resp = SAS_TASK_COMPLETE;
2862 		ts->stat = SAS_OPEN_TO;
2863 		break;
2864 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2865 		PM8001_IO_DBG(pm8001_ha,
2866 			pm8001_printk("IO_XFER_ERROR_UNEXPECTED_PHASE\n"));
2867 		ts->resp = SAS_TASK_COMPLETE;
2868 		ts->stat = SAS_OPEN_TO;
2869 		break;
2870 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2871 		PM8001_IO_DBG(pm8001_ha,
2872 			pm8001_printk("IO_XFER_ERROR_XFER_RDY_OVERRUN\n"));
2873 		ts->resp = SAS_TASK_COMPLETE;
2874 		ts->stat = SAS_OPEN_TO;
2875 		break;
2876 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2877 		PM8001_IO_DBG(pm8001_ha,
2878 		       pm8001_printk("IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n"));
2879 		ts->resp = SAS_TASK_COMPLETE;
2880 		ts->stat = SAS_OPEN_TO;
2881 		break;
2882 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2883 		PM8001_IO_DBG(pm8001_ha,
2884 			pm8001_printk("IO_XFER_ERROR_OFFSET_MISMATCH\n"));
2885 		ts->resp = SAS_TASK_COMPLETE;
2886 		ts->stat = SAS_OPEN_TO;
2887 		break;
2888 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2889 		PM8001_IO_DBG(pm8001_ha,
2890 			pm8001_printk("IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n"));
2891 		ts->resp = SAS_TASK_COMPLETE;
2892 		ts->stat = SAS_OPEN_TO;
2893 		break;
2894 	case IO_XFER_CMD_FRAME_ISSUED:
2895 		PM8001_IO_DBG(pm8001_ha,
2896 			pm8001_printk("IO_XFER_CMD_FRAME_ISSUED\n"));
2897 		break;
2898 	case IO_XFER_PIO_SETUP_ERROR:
2899 		PM8001_IO_DBG(pm8001_ha,
2900 			pm8001_printk("IO_XFER_PIO_SETUP_ERROR\n"));
2901 		ts->resp = SAS_TASK_COMPLETE;
2902 		ts->stat = SAS_OPEN_TO;
2903 		break;
2904 	default:
2905 		PM8001_DEVIO_DBG(pm8001_ha,
2906 			pm8001_printk("Unknown status 0x%x\n", event));
2907 		/* not allowed case. Therefore, return failed status */
2908 		ts->resp = SAS_TASK_COMPLETE;
2909 		ts->stat = SAS_OPEN_TO;
2910 		break;
2911 	}
2912 	spin_lock_irqsave(&t->task_state_lock, flags);
2913 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2914 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2915 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2916 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2917 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2918 		PM8001_FAIL_DBG(pm8001_ha,
2919 			pm8001_printk("task 0x%p done with io_status 0x%x"
2920 			" resp 0x%x stat 0x%x but aborted by upper layer!\n",
2921 			t, event, ts->resp, ts->stat));
2922 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2923 	} else {
2924 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2925 		pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2926 	}
2927 }
2928 
2929 /*See the comments for mpi_ssp_completion */
2930 static void
2931 mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2932 {
2933 	struct sas_task *t;
2934 	struct pm8001_ccb_info *ccb;
2935 	unsigned long flags;
2936 	u32 status;
2937 	u32 tag;
2938 	struct smp_completion_resp *psmpPayload;
2939 	struct task_status_struct *ts;
2940 	struct pm8001_device *pm8001_dev;
2941 
2942 	psmpPayload = (struct smp_completion_resp *)(piomb + 4);
2943 	status = le32_to_cpu(psmpPayload->status);
2944 	tag = le32_to_cpu(psmpPayload->tag);
2945 
2946 	ccb = &pm8001_ha->ccb_info[tag];
2947 	t = ccb->task;
2948 	ts = &t->task_status;
2949 	pm8001_dev = ccb->device;
2950 	if (status) {
2951 		PM8001_FAIL_DBG(pm8001_ha,
2952 			pm8001_printk("smp IO status 0x%x\n", status));
2953 		PM8001_IOERR_DBG(pm8001_ha,
2954 			pm8001_printk("status:0x%x, tag:0x%x, task:0x%p\n",
2955 			status, tag, t));
2956 	}
2957 	if (unlikely(!t || !t->lldd_task || !t->dev))
2958 		return;
2959 
2960 	switch (status) {
2961 	case IO_SUCCESS:
2962 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS\n"));
2963 		ts->resp = SAS_TASK_COMPLETE;
2964 		ts->stat = SAM_STAT_GOOD;
2965 		if (pm8001_dev)
2966 			pm8001_dev->running_req--;
2967 		break;
2968 	case IO_ABORTED:
2969 		PM8001_IO_DBG(pm8001_ha,
2970 			pm8001_printk("IO_ABORTED IOMB\n"));
2971 		ts->resp = SAS_TASK_COMPLETE;
2972 		ts->stat = SAS_ABORTED_TASK;
2973 		if (pm8001_dev)
2974 			pm8001_dev->running_req--;
2975 		break;
2976 	case IO_OVERFLOW:
2977 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW\n"));
2978 		ts->resp = SAS_TASK_COMPLETE;
2979 		ts->stat = SAS_DATA_OVERRUN;
2980 		ts->residual = 0;
2981 		if (pm8001_dev)
2982 			pm8001_dev->running_req--;
2983 		break;
2984 	case IO_NO_DEVICE:
2985 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_NO_DEVICE\n"));
2986 		ts->resp = SAS_TASK_COMPLETE;
2987 		ts->stat = SAS_PHY_DOWN;
2988 		break;
2989 	case IO_ERROR_HW_TIMEOUT:
2990 		PM8001_IO_DBG(pm8001_ha,
2991 			pm8001_printk("IO_ERROR_HW_TIMEOUT\n"));
2992 		ts->resp = SAS_TASK_COMPLETE;
2993 		ts->stat = SAM_STAT_BUSY;
2994 		break;
2995 	case IO_XFER_ERROR_BREAK:
2996 		PM8001_IO_DBG(pm8001_ha,
2997 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
2998 		ts->resp = SAS_TASK_COMPLETE;
2999 		ts->stat = SAM_STAT_BUSY;
3000 		break;
3001 	case IO_XFER_ERROR_PHY_NOT_READY:
3002 		PM8001_IO_DBG(pm8001_ha,
3003 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
3004 		ts->resp = SAS_TASK_COMPLETE;
3005 		ts->stat = SAM_STAT_BUSY;
3006 		break;
3007 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
3008 		PM8001_IO_DBG(pm8001_ha,
3009 		pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n"));
3010 		ts->resp = SAS_TASK_COMPLETE;
3011 		ts->stat = SAS_OPEN_REJECT;
3012 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
3013 		break;
3014 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
3015 		PM8001_IO_DBG(pm8001_ha,
3016 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
3017 		ts->resp = SAS_TASK_COMPLETE;
3018 		ts->stat = SAS_OPEN_REJECT;
3019 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
3020 		break;
3021 	case IO_OPEN_CNX_ERROR_BREAK:
3022 		PM8001_IO_DBG(pm8001_ha,
3023 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
3024 		ts->resp = SAS_TASK_COMPLETE;
3025 		ts->stat = SAS_OPEN_REJECT;
3026 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
3027 		break;
3028 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
3029 		PM8001_IO_DBG(pm8001_ha,
3030 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
3031 		ts->resp = SAS_TASK_COMPLETE;
3032 		ts->stat = SAS_OPEN_REJECT;
3033 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
3034 		pm8001_handle_event(pm8001_ha,
3035 				pm8001_dev,
3036 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
3037 		break;
3038 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
3039 		PM8001_IO_DBG(pm8001_ha,
3040 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
3041 		ts->resp = SAS_TASK_COMPLETE;
3042 		ts->stat = SAS_OPEN_REJECT;
3043 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
3044 		break;
3045 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
3046 		PM8001_IO_DBG(pm8001_ha,
3047 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
3048 			"NOT_SUPPORTED\n"));
3049 		ts->resp = SAS_TASK_COMPLETE;
3050 		ts->stat = SAS_OPEN_REJECT;
3051 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
3052 		break;
3053 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
3054 		PM8001_IO_DBG(pm8001_ha,
3055 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
3056 		ts->resp = SAS_TASK_COMPLETE;
3057 		ts->stat = SAS_OPEN_REJECT;
3058 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
3059 		break;
3060 	case IO_XFER_ERROR_RX_FRAME:
3061 		PM8001_IO_DBG(pm8001_ha,
3062 			pm8001_printk("IO_XFER_ERROR_RX_FRAME\n"));
3063 		ts->resp = SAS_TASK_COMPLETE;
3064 		ts->stat = SAS_DEV_NO_RESPONSE;
3065 		break;
3066 	case IO_XFER_OPEN_RETRY_TIMEOUT:
3067 		PM8001_IO_DBG(pm8001_ha,
3068 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
3069 		ts->resp = SAS_TASK_COMPLETE;
3070 		ts->stat = SAS_OPEN_REJECT;
3071 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3072 		break;
3073 	case IO_ERROR_INTERNAL_SMP_RESOURCE:
3074 		PM8001_IO_DBG(pm8001_ha,
3075 			pm8001_printk("IO_ERROR_INTERNAL_SMP_RESOURCE\n"));
3076 		ts->resp = SAS_TASK_COMPLETE;
3077 		ts->stat = SAS_QUEUE_FULL;
3078 		break;
3079 	case IO_PORT_IN_RESET:
3080 		PM8001_IO_DBG(pm8001_ha,
3081 			pm8001_printk("IO_PORT_IN_RESET\n"));
3082 		ts->resp = SAS_TASK_COMPLETE;
3083 		ts->stat = SAS_OPEN_REJECT;
3084 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3085 		break;
3086 	case IO_DS_NON_OPERATIONAL:
3087 		PM8001_IO_DBG(pm8001_ha,
3088 			pm8001_printk("IO_DS_NON_OPERATIONAL\n"));
3089 		ts->resp = SAS_TASK_COMPLETE;
3090 		ts->stat = SAS_DEV_NO_RESPONSE;
3091 		break;
3092 	case IO_DS_IN_RECOVERY:
3093 		PM8001_IO_DBG(pm8001_ha,
3094 			pm8001_printk("IO_DS_IN_RECOVERY\n"));
3095 		ts->resp = SAS_TASK_COMPLETE;
3096 		ts->stat = SAS_OPEN_REJECT;
3097 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3098 		break;
3099 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
3100 		PM8001_IO_DBG(pm8001_ha,
3101 			pm8001_printk("IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n"));
3102 		ts->resp = SAS_TASK_COMPLETE;
3103 		ts->stat = SAS_OPEN_REJECT;
3104 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3105 		break;
3106 	default:
3107 		PM8001_DEVIO_DBG(pm8001_ha,
3108 			pm8001_printk("Unknown status 0x%x\n", status));
3109 		ts->resp = SAS_TASK_COMPLETE;
3110 		ts->stat = SAS_DEV_NO_RESPONSE;
3111 		/* not allowed case. Therefore, return failed status */
3112 		break;
3113 	}
3114 	spin_lock_irqsave(&t->task_state_lock, flags);
3115 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
3116 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
3117 	t->task_state_flags |= SAS_TASK_STATE_DONE;
3118 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
3119 		spin_unlock_irqrestore(&t->task_state_lock, flags);
3120 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p done with"
3121 			" io_status 0x%x resp 0x%x "
3122 			"stat 0x%x but aborted by upper layer!\n",
3123 			t, status, ts->resp, ts->stat));
3124 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3125 	} else {
3126 		spin_unlock_irqrestore(&t->task_state_lock, flags);
3127 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3128 		mb();/* in order to force CPU ordering */
3129 		t->task_done(t);
3130 	}
3131 }
3132 
3133 void pm8001_mpi_set_dev_state_resp(struct pm8001_hba_info *pm8001_ha,
3134 		void *piomb)
3135 {
3136 	struct set_dev_state_resp *pPayload =
3137 		(struct set_dev_state_resp *)(piomb + 4);
3138 	u32 tag = le32_to_cpu(pPayload->tag);
3139 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3140 	struct pm8001_device *pm8001_dev = ccb->device;
3141 	u32 status = le32_to_cpu(pPayload->status);
3142 	u32 device_id = le32_to_cpu(pPayload->device_id);
3143 	u8 pds = le32_to_cpu(pPayload->pds_nds) & PDS_BITS;
3144 	u8 nds = le32_to_cpu(pPayload->pds_nds) & NDS_BITS;
3145 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("Set device id = 0x%x state "
3146 		"from 0x%x to 0x%x status = 0x%x!\n",
3147 		device_id, pds, nds, status));
3148 	complete(pm8001_dev->setds_completion);
3149 	ccb->task = NULL;
3150 	ccb->ccb_tag = 0xFFFFFFFF;
3151 	pm8001_tag_free(pm8001_ha, tag);
3152 }
3153 
3154 void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3155 {
3156 	struct get_nvm_data_resp *pPayload =
3157 		(struct get_nvm_data_resp *)(piomb + 4);
3158 	u32 tag = le32_to_cpu(pPayload->tag);
3159 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3160 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
3161 	complete(pm8001_ha->nvmd_completion);
3162 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("Set nvm data complete!\n"));
3163 	if ((dlen_status & NVMD_STAT) != 0) {
3164 		PM8001_FAIL_DBG(pm8001_ha,
3165 			pm8001_printk("Set nvm data error!\n"));
3166 		return;
3167 	}
3168 	ccb->task = NULL;
3169 	ccb->ccb_tag = 0xFFFFFFFF;
3170 	pm8001_tag_free(pm8001_ha, tag);
3171 }
3172 
3173 void
3174 pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3175 {
3176 	struct fw_control_ex    *fw_control_context;
3177 	struct get_nvm_data_resp *pPayload =
3178 		(struct get_nvm_data_resp *)(piomb + 4);
3179 	u32 tag = le32_to_cpu(pPayload->tag);
3180 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3181 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
3182 	u32 ir_tds_bn_dps_das_nvm =
3183 		le32_to_cpu(pPayload->ir_tda_bn_dps_das_nvm);
3184 	void *virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr;
3185 	fw_control_context = ccb->fw_control_context;
3186 
3187 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("Get nvm data complete!\n"));
3188 	if ((dlen_status & NVMD_STAT) != 0) {
3189 		PM8001_FAIL_DBG(pm8001_ha,
3190 			pm8001_printk("Get nvm data error!\n"));
3191 		complete(pm8001_ha->nvmd_completion);
3192 		return;
3193 	}
3194 
3195 	if (ir_tds_bn_dps_das_nvm & IPMode) {
3196 		/* indirect mode - IR bit set */
3197 		PM8001_MSG_DBG(pm8001_ha,
3198 			pm8001_printk("Get NVMD success, IR=1\n"));
3199 		if ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == TWI_DEVICE) {
3200 			if (ir_tds_bn_dps_das_nvm == 0x80a80200) {
3201 				memcpy(pm8001_ha->sas_addr,
3202 				      ((u8 *)virt_addr + 4),
3203 				       SAS_ADDR_SIZE);
3204 				PM8001_MSG_DBG(pm8001_ha,
3205 					pm8001_printk("Get SAS address"
3206 					" from VPD successfully!\n"));
3207 			}
3208 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == C_SEEPROM)
3209 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == VPD_FLASH) ||
3210 			((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == EXPAN_ROM)) {
3211 				;
3212 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == AAP1_RDUMP)
3213 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == IOP_RDUMP)) {
3214 			;
3215 		} else {
3216 			/* Should not be happened*/
3217 			PM8001_MSG_DBG(pm8001_ha,
3218 				pm8001_printk("(IR=1)Wrong Device type 0x%x\n",
3219 				ir_tds_bn_dps_das_nvm));
3220 		}
3221 	} else /* direct mode */{
3222 		PM8001_MSG_DBG(pm8001_ha,
3223 			pm8001_printk("Get NVMD success, IR=0, dataLen=%d\n",
3224 			(dlen_status & NVMD_LEN) >> 24));
3225 	}
3226 	/* Though fw_control_context is freed below, usrAddr still needs
3227 	 * to be updated as this holds the response to the request function
3228 	 */
3229 	memcpy(fw_control_context->usrAddr,
3230 		pm8001_ha->memoryMap.region[NVMD].virt_ptr,
3231 		fw_control_context->len);
3232 	kfree(ccb->fw_control_context);
3233 	ccb->task = NULL;
3234 	ccb->ccb_tag = 0xFFFFFFFF;
3235 	pm8001_tag_free(pm8001_ha, tag);
3236 	complete(pm8001_ha->nvmd_completion);
3237 }
3238 
3239 int pm8001_mpi_local_phy_ctl(struct pm8001_hba_info *pm8001_ha, void *piomb)
3240 {
3241 	u32 tag;
3242 	struct local_phy_ctl_resp *pPayload =
3243 		(struct local_phy_ctl_resp *)(piomb + 4);
3244 	u32 status = le32_to_cpu(pPayload->status);
3245 	u32 phy_id = le32_to_cpu(pPayload->phyop_phyid) & ID_BITS;
3246 	u32 phy_op = le32_to_cpu(pPayload->phyop_phyid) & OP_BITS;
3247 	tag = le32_to_cpu(pPayload->tag);
3248 	if (status != 0) {
3249 		PM8001_MSG_DBG(pm8001_ha,
3250 			pm8001_printk("%x phy execute %x phy op failed!\n",
3251 			phy_id, phy_op));
3252 	} else {
3253 		PM8001_MSG_DBG(pm8001_ha,
3254 			pm8001_printk("%x phy execute %x phy op success!\n",
3255 			phy_id, phy_op));
3256 		pm8001_ha->phy[phy_id].reset_success = true;
3257 	}
3258 	if (pm8001_ha->phy[phy_id].enable_completion) {
3259 		complete(pm8001_ha->phy[phy_id].enable_completion);
3260 		pm8001_ha->phy[phy_id].enable_completion = NULL;
3261 	}
3262 	pm8001_tag_free(pm8001_ha, tag);
3263 	return 0;
3264 }
3265 
3266 /**
3267  * pm8001_bytes_dmaed - one of the interface function communication with libsas
3268  * @pm8001_ha: our hba card information
3269  * @i: which phy that received the event.
3270  *
3271  * when HBA driver received the identify done event or initiate FIS received
3272  * event(for SATA), it will invoke this function to notify the sas layer that
3273  * the sas toplogy has formed, please discover the the whole sas domain,
3274  * while receive a broadcast(change) primitive just tell the sas
3275  * layer to discover the changed domain rather than the whole domain.
3276  */
3277 void pm8001_bytes_dmaed(struct pm8001_hba_info *pm8001_ha, int i)
3278 {
3279 	struct pm8001_phy *phy = &pm8001_ha->phy[i];
3280 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
3281 	if (!phy->phy_attached)
3282 		return;
3283 
3284 	if (sas_phy->phy) {
3285 		struct sas_phy *sphy = sas_phy->phy;
3286 		sphy->negotiated_linkrate = sas_phy->linkrate;
3287 		sphy->minimum_linkrate = phy->minimum_linkrate;
3288 		sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
3289 		sphy->maximum_linkrate = phy->maximum_linkrate;
3290 		sphy->maximum_linkrate_hw = phy->maximum_linkrate;
3291 	}
3292 
3293 	if (phy->phy_type & PORT_TYPE_SAS) {
3294 		struct sas_identify_frame *id;
3295 		id = (struct sas_identify_frame *)phy->frame_rcvd;
3296 		id->dev_type = phy->identify.device_type;
3297 		id->initiator_bits = SAS_PROTOCOL_ALL;
3298 		id->target_bits = phy->identify.target_port_protocols;
3299 	} else if (phy->phy_type & PORT_TYPE_SATA) {
3300 		/*Nothing*/
3301 	}
3302 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("phy %d byte dmaded.\n", i));
3303 
3304 	sas_phy->frame_rcvd_size = phy->frame_rcvd_size;
3305 	pm8001_ha->sas->notify_port_event(sas_phy, PORTE_BYTES_DMAED);
3306 }
3307 
3308 /* Get the link rate speed  */
3309 void pm8001_get_lrate_mode(struct pm8001_phy *phy, u8 link_rate)
3310 {
3311 	struct sas_phy *sas_phy = phy->sas_phy.phy;
3312 
3313 	switch (link_rate) {
3314 	case PHY_SPEED_120:
3315 		phy->sas_phy.linkrate = SAS_LINK_RATE_12_0_GBPS;
3316 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_12_0_GBPS;
3317 		break;
3318 	case PHY_SPEED_60:
3319 		phy->sas_phy.linkrate = SAS_LINK_RATE_6_0_GBPS;
3320 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_6_0_GBPS;
3321 		break;
3322 	case PHY_SPEED_30:
3323 		phy->sas_phy.linkrate = SAS_LINK_RATE_3_0_GBPS;
3324 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS;
3325 		break;
3326 	case PHY_SPEED_15:
3327 		phy->sas_phy.linkrate = SAS_LINK_RATE_1_5_GBPS;
3328 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_1_5_GBPS;
3329 		break;
3330 	}
3331 	sas_phy->negotiated_linkrate = phy->sas_phy.linkrate;
3332 	sas_phy->maximum_linkrate_hw = SAS_LINK_RATE_6_0_GBPS;
3333 	sas_phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
3334 	sas_phy->maximum_linkrate = SAS_LINK_RATE_6_0_GBPS;
3335 	sas_phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
3336 }
3337 
3338 /**
3339  * asd_get_attached_sas_addr -- extract/generate attached SAS address
3340  * @phy: pointer to asd_phy
3341  * @sas_addr: pointer to buffer where the SAS address is to be written
3342  *
3343  * This function extracts the SAS address from an IDENTIFY frame
3344  * received.  If OOB is SATA, then a SAS address is generated from the
3345  * HA tables.
3346  *
3347  * LOCKING: the frame_rcvd_lock needs to be held since this parses the frame
3348  * buffer.
3349  */
3350 void pm8001_get_attached_sas_addr(struct pm8001_phy *phy,
3351 	u8 *sas_addr)
3352 {
3353 	if (phy->sas_phy.frame_rcvd[0] == 0x34
3354 		&& phy->sas_phy.oob_mode == SATA_OOB_MODE) {
3355 		struct pm8001_hba_info *pm8001_ha = phy->sas_phy.ha->lldd_ha;
3356 		/* FIS device-to-host */
3357 		u64 addr = be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr);
3358 		addr += phy->sas_phy.id;
3359 		*(__be64 *)sas_addr = cpu_to_be64(addr);
3360 	} else {
3361 		struct sas_identify_frame *idframe =
3362 			(void *) phy->sas_phy.frame_rcvd;
3363 		memcpy(sas_addr, idframe->sas_addr, SAS_ADDR_SIZE);
3364 	}
3365 }
3366 
3367 /**
3368  * pm8001_hw_event_ack_req- For PM8001,some events need to acknowage to FW.
3369  * @pm8001_ha: our hba card information
3370  * @Qnum: the outbound queue message number.
3371  * @SEA: source of event to ack
3372  * @port_id: port id.
3373  * @phyId: phy id.
3374  * @param0: parameter 0.
3375  * @param1: parameter 1.
3376  */
3377 static void pm8001_hw_event_ack_req(struct pm8001_hba_info *pm8001_ha,
3378 	u32 Qnum, u32 SEA, u32 port_id, u32 phyId, u32 param0, u32 param1)
3379 {
3380 	struct hw_event_ack_req	 payload;
3381 	u32 opc = OPC_INB_SAS_HW_EVENT_ACK;
3382 
3383 	struct inbound_queue_table *circularQ;
3384 
3385 	memset((u8 *)&payload, 0, sizeof(payload));
3386 	circularQ = &pm8001_ha->inbnd_q_tbl[Qnum];
3387 	payload.tag = cpu_to_le32(1);
3388 	payload.sea_phyid_portid = cpu_to_le32(((SEA & 0xFFFF) << 8) |
3389 		((phyId & 0x0F) << 4) | (port_id & 0x0F));
3390 	payload.param0 = cpu_to_le32(param0);
3391 	payload.param1 = cpu_to_le32(param1);
3392 	pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
3393 			sizeof(payload), 0);
3394 }
3395 
3396 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
3397 	u32 phyId, u32 phy_op);
3398 
3399 /**
3400  * hw_event_sas_phy_up -FW tells me a SAS phy up event.
3401  * @pm8001_ha: our hba card information
3402  * @piomb: IO message buffer
3403  */
3404 static void
3405 hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3406 {
3407 	struct hw_event_resp *pPayload =
3408 		(struct hw_event_resp *)(piomb + 4);
3409 	u32 lr_evt_status_phyid_portid =
3410 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3411 	u8 link_rate =
3412 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3413 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3414 	u8 phy_id =
3415 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3416 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3417 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3418 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3419 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3420 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3421 	unsigned long flags;
3422 	u8 deviceType = pPayload->sas_identify.dev_type;
3423 	port->port_state =  portstate;
3424 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3425 	PM8001_MSG_DBG(pm8001_ha,
3426 		pm8001_printk("HW_EVENT_SAS_PHY_UP port id = %d, phy id = %d\n",
3427 		port_id, phy_id));
3428 
3429 	switch (deviceType) {
3430 	case SAS_PHY_UNUSED:
3431 		PM8001_MSG_DBG(pm8001_ha,
3432 			pm8001_printk("device type no device.\n"));
3433 		break;
3434 	case SAS_END_DEVICE:
3435 		PM8001_MSG_DBG(pm8001_ha, pm8001_printk("end device.\n"));
3436 		pm8001_chip_phy_ctl_req(pm8001_ha, phy_id,
3437 			PHY_NOTIFY_ENABLE_SPINUP);
3438 		port->port_attached = 1;
3439 		pm8001_get_lrate_mode(phy, link_rate);
3440 		break;
3441 	case SAS_EDGE_EXPANDER_DEVICE:
3442 		PM8001_MSG_DBG(pm8001_ha,
3443 			pm8001_printk("expander device.\n"));
3444 		port->port_attached = 1;
3445 		pm8001_get_lrate_mode(phy, link_rate);
3446 		break;
3447 	case SAS_FANOUT_EXPANDER_DEVICE:
3448 		PM8001_MSG_DBG(pm8001_ha,
3449 			pm8001_printk("fanout expander device.\n"));
3450 		port->port_attached = 1;
3451 		pm8001_get_lrate_mode(phy, link_rate);
3452 		break;
3453 	default:
3454 		PM8001_DEVIO_DBG(pm8001_ha,
3455 			pm8001_printk("unknown device type(%x)\n", deviceType));
3456 		break;
3457 	}
3458 	phy->phy_type |= PORT_TYPE_SAS;
3459 	phy->identify.device_type = deviceType;
3460 	phy->phy_attached = 1;
3461 	if (phy->identify.device_type == SAS_END_DEVICE)
3462 		phy->identify.target_port_protocols = SAS_PROTOCOL_SSP;
3463 	else if (phy->identify.device_type != SAS_PHY_UNUSED)
3464 		phy->identify.target_port_protocols = SAS_PROTOCOL_SMP;
3465 	phy->sas_phy.oob_mode = SAS_OOB_MODE;
3466 	sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE);
3467 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3468 	memcpy(phy->frame_rcvd, &pPayload->sas_identify,
3469 		sizeof(struct sas_identify_frame)-4);
3470 	phy->frame_rcvd_size = sizeof(struct sas_identify_frame) - 4;
3471 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3472 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3473 	if (pm8001_ha->flags == PM8001F_RUN_TIME)
3474 		mdelay(200);/*delay a moment to wait disk to spinup*/
3475 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3476 }
3477 
3478 /**
3479  * hw_event_sata_phy_up -FW tells me a SATA phy up event.
3480  * @pm8001_ha: our hba card information
3481  * @piomb: IO message buffer
3482  */
3483 static void
3484 hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3485 {
3486 	struct hw_event_resp *pPayload =
3487 		(struct hw_event_resp *)(piomb + 4);
3488 	u32 lr_evt_status_phyid_portid =
3489 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3490 	u8 link_rate =
3491 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3492 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3493 	u8 phy_id =
3494 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3495 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3496 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3497 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3498 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3499 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3500 	unsigned long flags;
3501 	PM8001_DEVIO_DBG(pm8001_ha,
3502 		pm8001_printk("HW_EVENT_SATA_PHY_UP port id = %d,"
3503 		" phy id = %d\n", port_id, phy_id));
3504 	port->port_state =  portstate;
3505 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3506 	port->port_attached = 1;
3507 	pm8001_get_lrate_mode(phy, link_rate);
3508 	phy->phy_type |= PORT_TYPE_SATA;
3509 	phy->phy_attached = 1;
3510 	phy->sas_phy.oob_mode = SATA_OOB_MODE;
3511 	sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE);
3512 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3513 	memcpy(phy->frame_rcvd, ((u8 *)&pPayload->sata_fis - 4),
3514 		sizeof(struct dev_to_host_fis));
3515 	phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
3516 	phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
3517 	phy->identify.device_type = SAS_SATA_DEV;
3518 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3519 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3520 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3521 }
3522 
3523 /**
3524  * hw_event_phy_down -we should notify the libsas the phy is down.
3525  * @pm8001_ha: our hba card information
3526  * @piomb: IO message buffer
3527  */
3528 static void
3529 hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb)
3530 {
3531 	struct hw_event_resp *pPayload =
3532 		(struct hw_event_resp *)(piomb + 4);
3533 	u32 lr_evt_status_phyid_portid =
3534 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3535 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3536 	u8 phy_id =
3537 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3538 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3539 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3540 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3541 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3542 	port->port_state =  portstate;
3543 	phy->phy_type = 0;
3544 	phy->identify.device_type = 0;
3545 	phy->phy_attached = 0;
3546 	memset(&phy->dev_sas_addr, 0, SAS_ADDR_SIZE);
3547 	switch (portstate) {
3548 	case PORT_VALID:
3549 		break;
3550 	case PORT_INVALID:
3551 		PM8001_MSG_DBG(pm8001_ha,
3552 			pm8001_printk(" PortInvalid portID %d\n", port_id));
3553 		PM8001_MSG_DBG(pm8001_ha,
3554 			pm8001_printk(" Last phy Down and port invalid\n"));
3555 		port->port_attached = 0;
3556 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3557 			port_id, phy_id, 0, 0);
3558 		break;
3559 	case PORT_IN_RESET:
3560 		PM8001_MSG_DBG(pm8001_ha,
3561 			pm8001_printk(" Port In Reset portID %d\n", port_id));
3562 		break;
3563 	case PORT_NOT_ESTABLISHED:
3564 		PM8001_MSG_DBG(pm8001_ha,
3565 			pm8001_printk(" phy Down and PORT_NOT_ESTABLISHED\n"));
3566 		port->port_attached = 0;
3567 		break;
3568 	case PORT_LOSTCOMM:
3569 		PM8001_MSG_DBG(pm8001_ha,
3570 			pm8001_printk(" phy Down and PORT_LOSTCOMM\n"));
3571 		PM8001_MSG_DBG(pm8001_ha,
3572 			pm8001_printk(" Last phy Down and port invalid\n"));
3573 		port->port_attached = 0;
3574 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3575 			port_id, phy_id, 0, 0);
3576 		break;
3577 	default:
3578 		port->port_attached = 0;
3579 		PM8001_DEVIO_DBG(pm8001_ha,
3580 			pm8001_printk(" phy Down and(default) = %x\n",
3581 			portstate));
3582 		break;
3583 
3584 	}
3585 }
3586 
3587 /**
3588  * pm8001_mpi_reg_resp -process register device ID response.
3589  * @pm8001_ha: our hba card information
3590  * @piomb: IO message buffer
3591  *
3592  * when sas layer find a device it will notify LLDD, then the driver register
3593  * the domain device to FW, this event is the return device ID which the FW
3594  * has assigned, from now,inter-communication with FW is no longer using the
3595  * SAS address, use device ID which FW assigned.
3596  */
3597 int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3598 {
3599 	u32 status;
3600 	u32 device_id;
3601 	u32 htag;
3602 	struct pm8001_ccb_info *ccb;
3603 	struct pm8001_device *pm8001_dev;
3604 	struct dev_reg_resp *registerRespPayload =
3605 		(struct dev_reg_resp *)(piomb + 4);
3606 
3607 	htag = le32_to_cpu(registerRespPayload->tag);
3608 	ccb = &pm8001_ha->ccb_info[htag];
3609 	pm8001_dev = ccb->device;
3610 	status = le32_to_cpu(registerRespPayload->status);
3611 	device_id = le32_to_cpu(registerRespPayload->device_id);
3612 	PM8001_MSG_DBG(pm8001_ha,
3613 		pm8001_printk(" register device is status = %d\n", status));
3614 	switch (status) {
3615 	case DEVREG_SUCCESS:
3616 		PM8001_MSG_DBG(pm8001_ha, pm8001_printk("DEVREG_SUCCESS\n"));
3617 		pm8001_dev->device_id = device_id;
3618 		break;
3619 	case DEVREG_FAILURE_OUT_OF_RESOURCE:
3620 		PM8001_MSG_DBG(pm8001_ha,
3621 			pm8001_printk("DEVREG_FAILURE_OUT_OF_RESOURCE\n"));
3622 		break;
3623 	case DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED:
3624 		PM8001_MSG_DBG(pm8001_ha,
3625 		   pm8001_printk("DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED\n"));
3626 		break;
3627 	case DEVREG_FAILURE_INVALID_PHY_ID:
3628 		PM8001_MSG_DBG(pm8001_ha,
3629 			pm8001_printk("DEVREG_FAILURE_INVALID_PHY_ID\n"));
3630 		break;
3631 	case DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED:
3632 		PM8001_MSG_DBG(pm8001_ha,
3633 		   pm8001_printk("DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED\n"));
3634 		break;
3635 	case DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE:
3636 		PM8001_MSG_DBG(pm8001_ha,
3637 			pm8001_printk("DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE\n"));
3638 		break;
3639 	case DEVREG_FAILURE_PORT_NOT_VALID_STATE:
3640 		PM8001_MSG_DBG(pm8001_ha,
3641 			pm8001_printk("DEVREG_FAILURE_PORT_NOT_VALID_STATE\n"));
3642 		break;
3643 	case DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID:
3644 		PM8001_MSG_DBG(pm8001_ha,
3645 		       pm8001_printk("DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID\n"));
3646 		break;
3647 	default:
3648 		PM8001_MSG_DBG(pm8001_ha,
3649 			pm8001_printk("DEVREG_FAILURE_DEVICE_TYPE_NOT_SUPPORTED\n"));
3650 		break;
3651 	}
3652 	complete(pm8001_dev->dcompletion);
3653 	ccb->task = NULL;
3654 	ccb->ccb_tag = 0xFFFFFFFF;
3655 	pm8001_tag_free(pm8001_ha, htag);
3656 	return 0;
3657 }
3658 
3659 int pm8001_mpi_dereg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3660 {
3661 	u32 status;
3662 	u32 device_id;
3663 	struct dev_reg_resp *registerRespPayload =
3664 		(struct dev_reg_resp *)(piomb + 4);
3665 
3666 	status = le32_to_cpu(registerRespPayload->status);
3667 	device_id = le32_to_cpu(registerRespPayload->device_id);
3668 	if (status != 0)
3669 		PM8001_MSG_DBG(pm8001_ha,
3670 			pm8001_printk(" deregister device failed ,status = %x"
3671 			", device_id = %x\n", status, device_id));
3672 	return 0;
3673 }
3674 
3675 /**
3676  * fw_flash_update_resp - Response from FW for flash update command.
3677  * @pm8001_ha: our hba card information
3678  * @piomb: IO message buffer
3679  */
3680 int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
3681 		void *piomb)
3682 {
3683 	u32 status;
3684 	struct fw_flash_Update_resp *ppayload =
3685 		(struct fw_flash_Update_resp *)(piomb + 4);
3686 	u32 tag = le32_to_cpu(ppayload->tag);
3687 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3688 	status = le32_to_cpu(ppayload->status);
3689 	switch (status) {
3690 	case FLASH_UPDATE_COMPLETE_PENDING_REBOOT:
3691 		PM8001_MSG_DBG(pm8001_ha,
3692 		pm8001_printk(": FLASH_UPDATE_COMPLETE_PENDING_REBOOT\n"));
3693 		break;
3694 	case FLASH_UPDATE_IN_PROGRESS:
3695 		PM8001_MSG_DBG(pm8001_ha,
3696 			pm8001_printk(": FLASH_UPDATE_IN_PROGRESS\n"));
3697 		break;
3698 	case FLASH_UPDATE_HDR_ERR:
3699 		PM8001_MSG_DBG(pm8001_ha,
3700 			pm8001_printk(": FLASH_UPDATE_HDR_ERR\n"));
3701 		break;
3702 	case FLASH_UPDATE_OFFSET_ERR:
3703 		PM8001_MSG_DBG(pm8001_ha,
3704 			pm8001_printk(": FLASH_UPDATE_OFFSET_ERR\n"));
3705 		break;
3706 	case FLASH_UPDATE_CRC_ERR:
3707 		PM8001_MSG_DBG(pm8001_ha,
3708 			pm8001_printk(": FLASH_UPDATE_CRC_ERR\n"));
3709 		break;
3710 	case FLASH_UPDATE_LENGTH_ERR:
3711 		PM8001_MSG_DBG(pm8001_ha,
3712 			pm8001_printk(": FLASH_UPDATE_LENGTH_ERR\n"));
3713 		break;
3714 	case FLASH_UPDATE_HW_ERR:
3715 		PM8001_MSG_DBG(pm8001_ha,
3716 			pm8001_printk(": FLASH_UPDATE_HW_ERR\n"));
3717 		break;
3718 	case FLASH_UPDATE_DNLD_NOT_SUPPORTED:
3719 		PM8001_MSG_DBG(pm8001_ha,
3720 			pm8001_printk(": FLASH_UPDATE_DNLD_NOT_SUPPORTED\n"));
3721 		break;
3722 	case FLASH_UPDATE_DISABLED:
3723 		PM8001_MSG_DBG(pm8001_ha,
3724 			pm8001_printk(": FLASH_UPDATE_DISABLED\n"));
3725 		break;
3726 	default:
3727 		PM8001_DEVIO_DBG(pm8001_ha,
3728 			pm8001_printk("No matched status = %d\n", status));
3729 		break;
3730 	}
3731 	kfree(ccb->fw_control_context);
3732 	ccb->task = NULL;
3733 	ccb->ccb_tag = 0xFFFFFFFF;
3734 	pm8001_tag_free(pm8001_ha, tag);
3735 	complete(pm8001_ha->nvmd_completion);
3736 	return 0;
3737 }
3738 
3739 int pm8001_mpi_general_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
3740 {
3741 	u32 status;
3742 	int i;
3743 	struct general_event_resp *pPayload =
3744 		(struct general_event_resp *)(piomb + 4);
3745 	status = le32_to_cpu(pPayload->status);
3746 	PM8001_MSG_DBG(pm8001_ha,
3747 		pm8001_printk(" status = 0x%x\n", status));
3748 	for (i = 0; i < GENERAL_EVENT_PAYLOAD; i++)
3749 		PM8001_MSG_DBG(pm8001_ha,
3750 			pm8001_printk("inb_IOMB_payload[0x%x] 0x%x,\n", i,
3751 			pPayload->inb_IOMB_payload[i]));
3752 	return 0;
3753 }
3754 
3755 int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3756 {
3757 	struct sas_task *t;
3758 	struct pm8001_ccb_info *ccb;
3759 	unsigned long flags;
3760 	u32 status ;
3761 	u32 tag, scp;
3762 	struct task_status_struct *ts;
3763 	struct pm8001_device *pm8001_dev;
3764 
3765 	struct task_abort_resp *pPayload =
3766 		(struct task_abort_resp *)(piomb + 4);
3767 
3768 	status = le32_to_cpu(pPayload->status);
3769 	tag = le32_to_cpu(pPayload->tag);
3770 	if (!tag) {
3771 		PM8001_FAIL_DBG(pm8001_ha,
3772 			pm8001_printk(" TAG NULL. RETURNING !!!"));
3773 		return -1;
3774 	}
3775 
3776 	scp = le32_to_cpu(pPayload->scp);
3777 	ccb = &pm8001_ha->ccb_info[tag];
3778 	t = ccb->task;
3779 	pm8001_dev = ccb->device; /* retrieve device */
3780 
3781 	if (!t)	{
3782 		PM8001_FAIL_DBG(pm8001_ha,
3783 			pm8001_printk(" TASK NULL. RETURNING !!!"));
3784 		return -1;
3785 	}
3786 	ts = &t->task_status;
3787 	if (status != 0)
3788 		PM8001_FAIL_DBG(pm8001_ha,
3789 			pm8001_printk("task abort failed status 0x%x ,"
3790 			"tag = 0x%x, scp= 0x%x\n", status, tag, scp));
3791 	switch (status) {
3792 	case IO_SUCCESS:
3793 		PM8001_EH_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS\n"));
3794 		ts->resp = SAS_TASK_COMPLETE;
3795 		ts->stat = SAM_STAT_GOOD;
3796 		break;
3797 	case IO_NOT_VALID:
3798 		PM8001_EH_DBG(pm8001_ha, pm8001_printk("IO_NOT_VALID\n"));
3799 		ts->resp = TMF_RESP_FUNC_FAILED;
3800 		break;
3801 	}
3802 	spin_lock_irqsave(&t->task_state_lock, flags);
3803 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
3804 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
3805 	t->task_state_flags |= SAS_TASK_STATE_DONE;
3806 	spin_unlock_irqrestore(&t->task_state_lock, flags);
3807 	pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3808 	mb();
3809 
3810 	if (pm8001_dev->id & NCQ_ABORT_ALL_FLAG) {
3811 		pm8001_tag_free(pm8001_ha, tag);
3812 		sas_free_task(t);
3813 		/* clear the flag */
3814 		pm8001_dev->id &= 0xBFFFFFFF;
3815 	} else
3816 		t->task_done(t);
3817 
3818 	return 0;
3819 }
3820 
3821 /**
3822  * mpi_hw_event -The hw event has come.
3823  * @pm8001_ha: our hba card information
3824  * @piomb: IO message buffer
3825  */
3826 static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void* piomb)
3827 {
3828 	unsigned long flags;
3829 	struct hw_event_resp *pPayload =
3830 		(struct hw_event_resp *)(piomb + 4);
3831 	u32 lr_evt_status_phyid_portid =
3832 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3833 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3834 	u8 phy_id =
3835 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3836 	u16 eventType =
3837 		(u16)((lr_evt_status_phyid_portid & 0x00FFFF00) >> 8);
3838 	u8 status =
3839 		(u8)((lr_evt_status_phyid_portid & 0x0F000000) >> 24);
3840 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3841 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3842 	struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
3843 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
3844 		"SPC HW event for portid:%d, phyid:%d, event:%x, status:%x\n",
3845 		port_id, phy_id, eventType, status));
3846 	switch (eventType) {
3847 	case HW_EVENT_PHY_START_STATUS:
3848 		PM8001_MSG_DBG(pm8001_ha,
3849 		pm8001_printk("HW_EVENT_PHY_START_STATUS"
3850 			" status = %x\n", status));
3851 		if (status == 0) {
3852 			phy->phy_state = 1;
3853 			if (pm8001_ha->flags == PM8001F_RUN_TIME &&
3854 					phy->enable_completion != NULL)
3855 				complete(phy->enable_completion);
3856 		}
3857 		break;
3858 	case HW_EVENT_SAS_PHY_UP:
3859 		PM8001_MSG_DBG(pm8001_ha,
3860 			pm8001_printk("HW_EVENT_PHY_START_STATUS\n"));
3861 		hw_event_sas_phy_up(pm8001_ha, piomb);
3862 		break;
3863 	case HW_EVENT_SATA_PHY_UP:
3864 		PM8001_MSG_DBG(pm8001_ha,
3865 			pm8001_printk("HW_EVENT_SATA_PHY_UP\n"));
3866 		hw_event_sata_phy_up(pm8001_ha, piomb);
3867 		break;
3868 	case HW_EVENT_PHY_STOP_STATUS:
3869 		PM8001_MSG_DBG(pm8001_ha,
3870 			pm8001_printk("HW_EVENT_PHY_STOP_STATUS "
3871 			"status = %x\n", status));
3872 		if (status == 0)
3873 			phy->phy_state = 0;
3874 		break;
3875 	case HW_EVENT_SATA_SPINUP_HOLD:
3876 		PM8001_MSG_DBG(pm8001_ha,
3877 			pm8001_printk("HW_EVENT_SATA_SPINUP_HOLD\n"));
3878 		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_SPINUP_HOLD);
3879 		break;
3880 	case HW_EVENT_PHY_DOWN:
3881 		PM8001_MSG_DBG(pm8001_ha,
3882 			pm8001_printk("HW_EVENT_PHY_DOWN\n"));
3883 		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL);
3884 		phy->phy_attached = 0;
3885 		phy->phy_state = 0;
3886 		hw_event_phy_down(pm8001_ha, piomb);
3887 		break;
3888 	case HW_EVENT_PORT_INVALID:
3889 		PM8001_MSG_DBG(pm8001_ha,
3890 			pm8001_printk("HW_EVENT_PORT_INVALID\n"));
3891 		sas_phy_disconnected(sas_phy);
3892 		phy->phy_attached = 0;
3893 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3894 		break;
3895 	/* the broadcast change primitive received, tell the LIBSAS this event
3896 	to revalidate the sas domain*/
3897 	case HW_EVENT_BROADCAST_CHANGE:
3898 		PM8001_MSG_DBG(pm8001_ha,
3899 			pm8001_printk("HW_EVENT_BROADCAST_CHANGE\n"));
3900 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_BROADCAST_CHANGE,
3901 			port_id, phy_id, 1, 0);
3902 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3903 		sas_phy->sas_prim = HW_EVENT_BROADCAST_CHANGE;
3904 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3905 		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
3906 		break;
3907 	case HW_EVENT_PHY_ERROR:
3908 		PM8001_MSG_DBG(pm8001_ha,
3909 			pm8001_printk("HW_EVENT_PHY_ERROR\n"));
3910 		sas_phy_disconnected(&phy->sas_phy);
3911 		phy->phy_attached = 0;
3912 		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_ERROR);
3913 		break;
3914 	case HW_EVENT_BROADCAST_EXP:
3915 		PM8001_MSG_DBG(pm8001_ha,
3916 			pm8001_printk("HW_EVENT_BROADCAST_EXP\n"));
3917 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3918 		sas_phy->sas_prim = HW_EVENT_BROADCAST_EXP;
3919 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3920 		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
3921 		break;
3922 	case HW_EVENT_LINK_ERR_INVALID_DWORD:
3923 		PM8001_MSG_DBG(pm8001_ha,
3924 			pm8001_printk("HW_EVENT_LINK_ERR_INVALID_DWORD\n"));
3925 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3926 			HW_EVENT_LINK_ERR_INVALID_DWORD, port_id, phy_id, 0, 0);
3927 		sas_phy_disconnected(sas_phy);
3928 		phy->phy_attached = 0;
3929 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3930 		break;
3931 	case HW_EVENT_LINK_ERR_DISPARITY_ERROR:
3932 		PM8001_MSG_DBG(pm8001_ha,
3933 			pm8001_printk("HW_EVENT_LINK_ERR_DISPARITY_ERROR\n"));
3934 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3935 			HW_EVENT_LINK_ERR_DISPARITY_ERROR,
3936 			port_id, phy_id, 0, 0);
3937 		sas_phy_disconnected(sas_phy);
3938 		phy->phy_attached = 0;
3939 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3940 		break;
3941 	case HW_EVENT_LINK_ERR_CODE_VIOLATION:
3942 		PM8001_MSG_DBG(pm8001_ha,
3943 			pm8001_printk("HW_EVENT_LINK_ERR_CODE_VIOLATION\n"));
3944 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3945 			HW_EVENT_LINK_ERR_CODE_VIOLATION,
3946 			port_id, phy_id, 0, 0);
3947 		sas_phy_disconnected(sas_phy);
3948 		phy->phy_attached = 0;
3949 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3950 		break;
3951 	case HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH:
3952 		PM8001_MSG_DBG(pm8001_ha,
3953 		      pm8001_printk("HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH\n"));
3954 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3955 			HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH,
3956 			port_id, phy_id, 0, 0);
3957 		sas_phy_disconnected(sas_phy);
3958 		phy->phy_attached = 0;
3959 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3960 		break;
3961 	case HW_EVENT_MALFUNCTION:
3962 		PM8001_MSG_DBG(pm8001_ha,
3963 			pm8001_printk("HW_EVENT_MALFUNCTION\n"));
3964 		break;
3965 	case HW_EVENT_BROADCAST_SES:
3966 		PM8001_MSG_DBG(pm8001_ha,
3967 			pm8001_printk("HW_EVENT_BROADCAST_SES\n"));
3968 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3969 		sas_phy->sas_prim = HW_EVENT_BROADCAST_SES;
3970 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3971 		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
3972 		break;
3973 	case HW_EVENT_INBOUND_CRC_ERROR:
3974 		PM8001_MSG_DBG(pm8001_ha,
3975 			pm8001_printk("HW_EVENT_INBOUND_CRC_ERROR\n"));
3976 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3977 			HW_EVENT_INBOUND_CRC_ERROR,
3978 			port_id, phy_id, 0, 0);
3979 		break;
3980 	case HW_EVENT_HARD_RESET_RECEIVED:
3981 		PM8001_MSG_DBG(pm8001_ha,
3982 			pm8001_printk("HW_EVENT_HARD_RESET_RECEIVED\n"));
3983 		sas_ha->notify_port_event(sas_phy, PORTE_HARD_RESET);
3984 		break;
3985 	case HW_EVENT_ID_FRAME_TIMEOUT:
3986 		PM8001_MSG_DBG(pm8001_ha,
3987 			pm8001_printk("HW_EVENT_ID_FRAME_TIMEOUT\n"));
3988 		sas_phy_disconnected(sas_phy);
3989 		phy->phy_attached = 0;
3990 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3991 		break;
3992 	case HW_EVENT_LINK_ERR_PHY_RESET_FAILED:
3993 		PM8001_MSG_DBG(pm8001_ha,
3994 			pm8001_printk("HW_EVENT_LINK_ERR_PHY_RESET_FAILED\n"));
3995 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3996 			HW_EVENT_LINK_ERR_PHY_RESET_FAILED,
3997 			port_id, phy_id, 0, 0);
3998 		sas_phy_disconnected(sas_phy);
3999 		phy->phy_attached = 0;
4000 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
4001 		break;
4002 	case HW_EVENT_PORT_RESET_TIMER_TMO:
4003 		PM8001_MSG_DBG(pm8001_ha,
4004 			pm8001_printk("HW_EVENT_PORT_RESET_TIMER_TMO\n"));
4005 		sas_phy_disconnected(sas_phy);
4006 		phy->phy_attached = 0;
4007 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
4008 		break;
4009 	case HW_EVENT_PORT_RECOVERY_TIMER_TMO:
4010 		PM8001_MSG_DBG(pm8001_ha,
4011 			pm8001_printk("HW_EVENT_PORT_RECOVERY_TIMER_TMO\n"));
4012 		sas_phy_disconnected(sas_phy);
4013 		phy->phy_attached = 0;
4014 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
4015 		break;
4016 	case HW_EVENT_PORT_RECOVER:
4017 		PM8001_MSG_DBG(pm8001_ha,
4018 			pm8001_printk("HW_EVENT_PORT_RECOVER\n"));
4019 		break;
4020 	case HW_EVENT_PORT_RESET_COMPLETE:
4021 		PM8001_MSG_DBG(pm8001_ha,
4022 			pm8001_printk("HW_EVENT_PORT_RESET_COMPLETE\n"));
4023 		break;
4024 	case EVENT_BROADCAST_ASYNCH_EVENT:
4025 		PM8001_MSG_DBG(pm8001_ha,
4026 			pm8001_printk("EVENT_BROADCAST_ASYNCH_EVENT\n"));
4027 		break;
4028 	default:
4029 		PM8001_DEVIO_DBG(pm8001_ha,
4030 			pm8001_printk("Unknown event type = %x\n", eventType));
4031 		break;
4032 	}
4033 	return 0;
4034 }
4035 
4036 /**
4037  * process_one_iomb - process one outbound Queue memory block
4038  * @pm8001_ha: our hba card information
4039  * @piomb: IO message buffer
4040  */
4041 static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb)
4042 {
4043 	__le32 pHeader = *(__le32 *)piomb;
4044 	u8 opc = (u8)((le32_to_cpu(pHeader)) & 0xFFF);
4045 
4046 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("process_one_iomb:"));
4047 
4048 	switch (opc) {
4049 	case OPC_OUB_ECHO:
4050 		PM8001_MSG_DBG(pm8001_ha, pm8001_printk("OPC_OUB_ECHO\n"));
4051 		break;
4052 	case OPC_OUB_HW_EVENT:
4053 		PM8001_MSG_DBG(pm8001_ha,
4054 			pm8001_printk("OPC_OUB_HW_EVENT\n"));
4055 		mpi_hw_event(pm8001_ha, piomb);
4056 		break;
4057 	case OPC_OUB_SSP_COMP:
4058 		PM8001_MSG_DBG(pm8001_ha,
4059 			pm8001_printk("OPC_OUB_SSP_COMP\n"));
4060 		mpi_ssp_completion(pm8001_ha, piomb);
4061 		break;
4062 	case OPC_OUB_SMP_COMP:
4063 		PM8001_MSG_DBG(pm8001_ha,
4064 			pm8001_printk("OPC_OUB_SMP_COMP\n"));
4065 		mpi_smp_completion(pm8001_ha, piomb);
4066 		break;
4067 	case OPC_OUB_LOCAL_PHY_CNTRL:
4068 		PM8001_MSG_DBG(pm8001_ha,
4069 			pm8001_printk("OPC_OUB_LOCAL_PHY_CNTRL\n"));
4070 		pm8001_mpi_local_phy_ctl(pm8001_ha, piomb);
4071 		break;
4072 	case OPC_OUB_DEV_REGIST:
4073 		PM8001_MSG_DBG(pm8001_ha,
4074 			pm8001_printk("OPC_OUB_DEV_REGIST\n"));
4075 		pm8001_mpi_reg_resp(pm8001_ha, piomb);
4076 		break;
4077 	case OPC_OUB_DEREG_DEV:
4078 		PM8001_MSG_DBG(pm8001_ha,
4079 			pm8001_printk("unregister the device\n"));
4080 		pm8001_mpi_dereg_resp(pm8001_ha, piomb);
4081 		break;
4082 	case OPC_OUB_GET_DEV_HANDLE:
4083 		PM8001_MSG_DBG(pm8001_ha,
4084 			pm8001_printk("OPC_OUB_GET_DEV_HANDLE\n"));
4085 		break;
4086 	case OPC_OUB_SATA_COMP:
4087 		PM8001_MSG_DBG(pm8001_ha,
4088 			pm8001_printk("OPC_OUB_SATA_COMP\n"));
4089 		mpi_sata_completion(pm8001_ha, piomb);
4090 		break;
4091 	case OPC_OUB_SATA_EVENT:
4092 		PM8001_MSG_DBG(pm8001_ha,
4093 			pm8001_printk("OPC_OUB_SATA_EVENT\n"));
4094 		mpi_sata_event(pm8001_ha, piomb);
4095 		break;
4096 	case OPC_OUB_SSP_EVENT:
4097 		PM8001_MSG_DBG(pm8001_ha,
4098 			pm8001_printk("OPC_OUB_SSP_EVENT\n"));
4099 		mpi_ssp_event(pm8001_ha, piomb);
4100 		break;
4101 	case OPC_OUB_DEV_HANDLE_ARRIV:
4102 		PM8001_MSG_DBG(pm8001_ha,
4103 			pm8001_printk("OPC_OUB_DEV_HANDLE_ARRIV\n"));
4104 		/*This is for target*/
4105 		break;
4106 	case OPC_OUB_SSP_RECV_EVENT:
4107 		PM8001_MSG_DBG(pm8001_ha,
4108 			pm8001_printk("OPC_OUB_SSP_RECV_EVENT\n"));
4109 		/*This is for target*/
4110 		break;
4111 	case OPC_OUB_DEV_INFO:
4112 		PM8001_MSG_DBG(pm8001_ha,
4113 			pm8001_printk("OPC_OUB_DEV_INFO\n"));
4114 		break;
4115 	case OPC_OUB_FW_FLASH_UPDATE:
4116 		PM8001_MSG_DBG(pm8001_ha,
4117 			pm8001_printk("OPC_OUB_FW_FLASH_UPDATE\n"));
4118 		pm8001_mpi_fw_flash_update_resp(pm8001_ha, piomb);
4119 		break;
4120 	case OPC_OUB_GPIO_RESPONSE:
4121 		PM8001_MSG_DBG(pm8001_ha,
4122 			pm8001_printk("OPC_OUB_GPIO_RESPONSE\n"));
4123 		break;
4124 	case OPC_OUB_GPIO_EVENT:
4125 		PM8001_MSG_DBG(pm8001_ha,
4126 			pm8001_printk("OPC_OUB_GPIO_EVENT\n"));
4127 		break;
4128 	case OPC_OUB_GENERAL_EVENT:
4129 		PM8001_MSG_DBG(pm8001_ha,
4130 			pm8001_printk("OPC_OUB_GENERAL_EVENT\n"));
4131 		pm8001_mpi_general_event(pm8001_ha, piomb);
4132 		break;
4133 	case OPC_OUB_SSP_ABORT_RSP:
4134 		PM8001_MSG_DBG(pm8001_ha,
4135 			pm8001_printk("OPC_OUB_SSP_ABORT_RSP\n"));
4136 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4137 		break;
4138 	case OPC_OUB_SATA_ABORT_RSP:
4139 		PM8001_MSG_DBG(pm8001_ha,
4140 			pm8001_printk("OPC_OUB_SATA_ABORT_RSP\n"));
4141 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4142 		break;
4143 	case OPC_OUB_SAS_DIAG_MODE_START_END:
4144 		PM8001_MSG_DBG(pm8001_ha,
4145 			pm8001_printk("OPC_OUB_SAS_DIAG_MODE_START_END\n"));
4146 		break;
4147 	case OPC_OUB_SAS_DIAG_EXECUTE:
4148 		PM8001_MSG_DBG(pm8001_ha,
4149 			pm8001_printk("OPC_OUB_SAS_DIAG_EXECUTE\n"));
4150 		break;
4151 	case OPC_OUB_GET_TIME_STAMP:
4152 		PM8001_MSG_DBG(pm8001_ha,
4153 			pm8001_printk("OPC_OUB_GET_TIME_STAMP\n"));
4154 		break;
4155 	case OPC_OUB_SAS_HW_EVENT_ACK:
4156 		PM8001_MSG_DBG(pm8001_ha,
4157 			pm8001_printk("OPC_OUB_SAS_HW_EVENT_ACK\n"));
4158 		break;
4159 	case OPC_OUB_PORT_CONTROL:
4160 		PM8001_MSG_DBG(pm8001_ha,
4161 			pm8001_printk("OPC_OUB_PORT_CONTROL\n"));
4162 		break;
4163 	case OPC_OUB_SMP_ABORT_RSP:
4164 		PM8001_MSG_DBG(pm8001_ha,
4165 			pm8001_printk("OPC_OUB_SMP_ABORT_RSP\n"));
4166 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4167 		break;
4168 	case OPC_OUB_GET_NVMD_DATA:
4169 		PM8001_MSG_DBG(pm8001_ha,
4170 			pm8001_printk("OPC_OUB_GET_NVMD_DATA\n"));
4171 		pm8001_mpi_get_nvmd_resp(pm8001_ha, piomb);
4172 		break;
4173 	case OPC_OUB_SET_NVMD_DATA:
4174 		PM8001_MSG_DBG(pm8001_ha,
4175 			pm8001_printk("OPC_OUB_SET_NVMD_DATA\n"));
4176 		pm8001_mpi_set_nvmd_resp(pm8001_ha, piomb);
4177 		break;
4178 	case OPC_OUB_DEVICE_HANDLE_REMOVAL:
4179 		PM8001_MSG_DBG(pm8001_ha,
4180 			pm8001_printk("OPC_OUB_DEVICE_HANDLE_REMOVAL\n"));
4181 		break;
4182 	case OPC_OUB_SET_DEVICE_STATE:
4183 		PM8001_MSG_DBG(pm8001_ha,
4184 			pm8001_printk("OPC_OUB_SET_DEVICE_STATE\n"));
4185 		pm8001_mpi_set_dev_state_resp(pm8001_ha, piomb);
4186 		break;
4187 	case OPC_OUB_GET_DEVICE_STATE:
4188 		PM8001_MSG_DBG(pm8001_ha,
4189 			pm8001_printk("OPC_OUB_GET_DEVICE_STATE\n"));
4190 		break;
4191 	case OPC_OUB_SET_DEV_INFO:
4192 		PM8001_MSG_DBG(pm8001_ha,
4193 			pm8001_printk("OPC_OUB_SET_DEV_INFO\n"));
4194 		break;
4195 	case OPC_OUB_SAS_RE_INITIALIZE:
4196 		PM8001_MSG_DBG(pm8001_ha,
4197 			pm8001_printk("OPC_OUB_SAS_RE_INITIALIZE\n"));
4198 		break;
4199 	default:
4200 		PM8001_DEVIO_DBG(pm8001_ha,
4201 			pm8001_printk("Unknown outbound Queue IOMB OPC = %x\n",
4202 			opc));
4203 		break;
4204 	}
4205 }
4206 
4207 static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec)
4208 {
4209 	struct outbound_queue_table *circularQ;
4210 	void *pMsg1 = NULL;
4211 	u8 bc;
4212 	u32 ret = MPI_IO_STATUS_FAIL;
4213 	unsigned long flags;
4214 
4215 	spin_lock_irqsave(&pm8001_ha->lock, flags);
4216 	circularQ = &pm8001_ha->outbnd_q_tbl[vec];
4217 	do {
4218 		ret = pm8001_mpi_msg_consume(pm8001_ha, circularQ, &pMsg1, &bc);
4219 		if (MPI_IO_STATUS_SUCCESS == ret) {
4220 			/* process the outbound message */
4221 			process_one_iomb(pm8001_ha, (void *)(pMsg1 - 4));
4222 			/* free the message from the outbound circular buffer */
4223 			pm8001_mpi_msg_free_set(pm8001_ha, pMsg1,
4224 							circularQ, bc);
4225 		}
4226 		if (MPI_IO_STATUS_BUSY == ret) {
4227 			/* Update the producer index from SPC */
4228 			circularQ->producer_index =
4229 				cpu_to_le32(pm8001_read_32(circularQ->pi_virt));
4230 			if (le32_to_cpu(circularQ->producer_index) ==
4231 				circularQ->consumer_idx)
4232 				/* OQ is empty */
4233 				break;
4234 		}
4235 	} while (1);
4236 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
4237 	return ret;
4238 }
4239 
4240 /* DMA_... to our direction translation. */
4241 static const u8 data_dir_flags[] = {
4242 	[DMA_BIDIRECTIONAL]	= DATA_DIR_BYRECIPIENT,	/* UNSPECIFIED */
4243 	[DMA_TO_DEVICE]		= DATA_DIR_OUT,		/* OUTBOUND */
4244 	[DMA_FROM_DEVICE]	= DATA_DIR_IN,		/* INBOUND */
4245 	[DMA_NONE]		= DATA_DIR_NONE,	/* NO TRANSFER */
4246 };
4247 void
4248 pm8001_chip_make_sg(struct scatterlist *scatter, int nr, void *prd)
4249 {
4250 	int i;
4251 	struct scatterlist *sg;
4252 	struct pm8001_prd *buf_prd = prd;
4253 
4254 	for_each_sg(scatter, sg, nr, i) {
4255 		buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
4256 		buf_prd->im_len.len = cpu_to_le32(sg_dma_len(sg));
4257 		buf_prd->im_len.e = 0;
4258 		buf_prd++;
4259 	}
4260 }
4261 
4262 static void build_smp_cmd(u32 deviceID, __le32 hTag, struct smp_req *psmp_cmd)
4263 {
4264 	psmp_cmd->tag = hTag;
4265 	psmp_cmd->device_id = cpu_to_le32(deviceID);
4266 	psmp_cmd->len_ip_ir = cpu_to_le32(1|(1 << 1));
4267 }
4268 
4269 /**
4270  * pm8001_chip_smp_req - send a SMP task to FW
4271  * @pm8001_ha: our hba card information.
4272  * @ccb: the ccb information this request used.
4273  */
4274 static int pm8001_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
4275 	struct pm8001_ccb_info *ccb)
4276 {
4277 	int elem, rc;
4278 	struct sas_task *task = ccb->task;
4279 	struct domain_device *dev = task->dev;
4280 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4281 	struct scatterlist *sg_req, *sg_resp;
4282 	u32 req_len, resp_len;
4283 	struct smp_req smp_cmd;
4284 	u32 opc;
4285 	struct inbound_queue_table *circularQ;
4286 
4287 	memset(&smp_cmd, 0, sizeof(smp_cmd));
4288 	/*
4289 	 * DMA-map SMP request, response buffers
4290 	 */
4291 	sg_req = &task->smp_task.smp_req;
4292 	elem = dma_map_sg(pm8001_ha->dev, sg_req, 1, DMA_TO_DEVICE);
4293 	if (!elem)
4294 		return -ENOMEM;
4295 	req_len = sg_dma_len(sg_req);
4296 
4297 	sg_resp = &task->smp_task.smp_resp;
4298 	elem = dma_map_sg(pm8001_ha->dev, sg_resp, 1, DMA_FROM_DEVICE);
4299 	if (!elem) {
4300 		rc = -ENOMEM;
4301 		goto err_out;
4302 	}
4303 	resp_len = sg_dma_len(sg_resp);
4304 	/* must be in dwords */
4305 	if ((req_len & 0x3) || (resp_len & 0x3)) {
4306 		rc = -EINVAL;
4307 		goto err_out_2;
4308 	}
4309 
4310 	opc = OPC_INB_SMP_REQUEST;
4311 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4312 	smp_cmd.tag = cpu_to_le32(ccb->ccb_tag);
4313 	smp_cmd.long_smp_req.long_req_addr =
4314 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req));
4315 	smp_cmd.long_smp_req.long_req_size =
4316 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-4);
4317 	smp_cmd.long_smp_req.long_resp_addr =
4318 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_resp));
4319 	smp_cmd.long_smp_req.long_resp_size =
4320 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4);
4321 	build_smp_cmd(pm8001_dev->device_id, smp_cmd.tag, &smp_cmd);
4322 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc,
4323 			&smp_cmd, sizeof(smp_cmd), 0);
4324 	if (rc)
4325 		goto err_out_2;
4326 
4327 	return 0;
4328 
4329 err_out_2:
4330 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_resp, 1,
4331 			DMA_FROM_DEVICE);
4332 err_out:
4333 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_req, 1,
4334 			DMA_TO_DEVICE);
4335 	return rc;
4336 }
4337 
4338 /**
4339  * pm8001_chip_ssp_io_req - send a SSP task to FW
4340  * @pm8001_ha: our hba card information.
4341  * @ccb: the ccb information this request used.
4342  */
4343 static int pm8001_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
4344 	struct pm8001_ccb_info *ccb)
4345 {
4346 	struct sas_task *task = ccb->task;
4347 	struct domain_device *dev = task->dev;
4348 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4349 	struct ssp_ini_io_start_req ssp_cmd;
4350 	u32 tag = ccb->ccb_tag;
4351 	int ret;
4352 	u64 phys_addr;
4353 	struct inbound_queue_table *circularQ;
4354 	u32 opc = OPC_INB_SSPINIIOSTART;
4355 	memset(&ssp_cmd, 0, sizeof(ssp_cmd));
4356 	memcpy(ssp_cmd.ssp_iu.lun, task->ssp_task.LUN, 8);
4357 	ssp_cmd.dir_m_tlr =
4358 		cpu_to_le32(data_dir_flags[task->data_dir] << 8 | 0x0);/*0 for
4359 	SAS 1.1 compatible TLR*/
4360 	ssp_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4361 	ssp_cmd.device_id = cpu_to_le32(pm8001_dev->device_id);
4362 	ssp_cmd.tag = cpu_to_le32(tag);
4363 	if (task->ssp_task.enable_first_burst)
4364 		ssp_cmd.ssp_iu.efb_prio_attr |= 0x80;
4365 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_prio << 3);
4366 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_attr & 7);
4367 	memcpy(ssp_cmd.ssp_iu.cdb, task->ssp_task.cmd->cmnd,
4368 	       task->ssp_task.cmd->cmd_len);
4369 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4370 
4371 	/* fill in PRD (scatter/gather) table, if any */
4372 	if (task->num_scatter > 1) {
4373 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4374 		phys_addr = ccb->ccb_dma_handle +
4375 				offsetof(struct pm8001_ccb_info, buf_prd[0]);
4376 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(phys_addr));
4377 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(phys_addr));
4378 		ssp_cmd.esgl = cpu_to_le32(1<<31);
4379 	} else if (task->num_scatter == 1) {
4380 		u64 dma_addr = sg_dma_address(task->scatter);
4381 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(dma_addr));
4382 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(dma_addr));
4383 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4384 		ssp_cmd.esgl = 0;
4385 	} else if (task->num_scatter == 0) {
4386 		ssp_cmd.addr_low = 0;
4387 		ssp_cmd.addr_high = 0;
4388 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4389 		ssp_cmd.esgl = 0;
4390 	}
4391 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &ssp_cmd,
4392 			sizeof(ssp_cmd), 0);
4393 	return ret;
4394 }
4395 
4396 static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
4397 	struct pm8001_ccb_info *ccb)
4398 {
4399 	struct sas_task *task = ccb->task;
4400 	struct domain_device *dev = task->dev;
4401 	struct pm8001_device *pm8001_ha_dev = dev->lldd_dev;
4402 	u32 tag = ccb->ccb_tag;
4403 	int ret;
4404 	struct sata_start_req sata_cmd;
4405 	u32 hdr_tag, ncg_tag = 0;
4406 	u64 phys_addr;
4407 	u32 ATAP = 0x0;
4408 	u32 dir;
4409 	struct inbound_queue_table *circularQ;
4410 	unsigned long flags;
4411 	u32  opc = OPC_INB_SATA_HOST_OPSTART;
4412 	memset(&sata_cmd, 0, sizeof(sata_cmd));
4413 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4414 	if (task->data_dir == DMA_NONE) {
4415 		ATAP = 0x04;  /* no data*/
4416 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("no data\n"));
4417 	} else if (likely(!task->ata_task.device_control_reg_update)) {
4418 		if (task->ata_task.dma_xfer) {
4419 			ATAP = 0x06; /* DMA */
4420 			PM8001_IO_DBG(pm8001_ha, pm8001_printk("DMA\n"));
4421 		} else {
4422 			ATAP = 0x05; /* PIO*/
4423 			PM8001_IO_DBG(pm8001_ha, pm8001_printk("PIO\n"));
4424 		}
4425 		if (task->ata_task.use_ncq &&
4426 			dev->sata_dev.class != ATA_DEV_ATAPI) {
4427 			ATAP = 0x07; /* FPDMA */
4428 			PM8001_IO_DBG(pm8001_ha, pm8001_printk("FPDMA\n"));
4429 		}
4430 	}
4431 	if (task->ata_task.use_ncq && pm8001_get_ncq_tag(task, &hdr_tag)) {
4432 		task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
4433 		ncg_tag = hdr_tag;
4434 	}
4435 	dir = data_dir_flags[task->data_dir] << 8;
4436 	sata_cmd.tag = cpu_to_le32(tag);
4437 	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
4438 	sata_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4439 	sata_cmd.ncqtag_atap_dir_m =
4440 		cpu_to_le32(((ncg_tag & 0xff)<<16)|((ATAP & 0x3f) << 10) | dir);
4441 	sata_cmd.sata_fis = task->ata_task.fis;
4442 	if (likely(!task->ata_task.device_control_reg_update))
4443 		sata_cmd.sata_fis.flags |= 0x80;/* C=1: update ATA cmd reg */
4444 	sata_cmd.sata_fis.flags &= 0xF0;/* PM_PORT field shall be 0 */
4445 	/* fill in PRD (scatter/gather) table, if any */
4446 	if (task->num_scatter > 1) {
4447 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4448 		phys_addr = ccb->ccb_dma_handle +
4449 				offsetof(struct pm8001_ccb_info, buf_prd[0]);
4450 		sata_cmd.addr_low = lower_32_bits(phys_addr);
4451 		sata_cmd.addr_high = upper_32_bits(phys_addr);
4452 		sata_cmd.esgl = cpu_to_le32(1 << 31);
4453 	} else if (task->num_scatter == 1) {
4454 		u64 dma_addr = sg_dma_address(task->scatter);
4455 		sata_cmd.addr_low = lower_32_bits(dma_addr);
4456 		sata_cmd.addr_high = upper_32_bits(dma_addr);
4457 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4458 		sata_cmd.esgl = 0;
4459 	} else if (task->num_scatter == 0) {
4460 		sata_cmd.addr_low = 0;
4461 		sata_cmd.addr_high = 0;
4462 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4463 		sata_cmd.esgl = 0;
4464 	}
4465 
4466 	/* Check for read log for failed drive and return */
4467 	if (sata_cmd.sata_fis.command == 0x2f) {
4468 		if (((pm8001_ha_dev->id & NCQ_READ_LOG_FLAG) ||
4469 			(pm8001_ha_dev->id & NCQ_ABORT_ALL_FLAG) ||
4470 			(pm8001_ha_dev->id & NCQ_2ND_RLE_FLAG))) {
4471 			struct task_status_struct *ts;
4472 
4473 			pm8001_ha_dev->id &= 0xDFFFFFFF;
4474 			ts = &task->task_status;
4475 
4476 			spin_lock_irqsave(&task->task_state_lock, flags);
4477 			ts->resp = SAS_TASK_COMPLETE;
4478 			ts->stat = SAM_STAT_GOOD;
4479 			task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
4480 			task->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
4481 			task->task_state_flags |= SAS_TASK_STATE_DONE;
4482 			if (unlikely((task->task_state_flags &
4483 					SAS_TASK_STATE_ABORTED))) {
4484 				spin_unlock_irqrestore(&task->task_state_lock,
4485 							flags);
4486 				PM8001_FAIL_DBG(pm8001_ha,
4487 					pm8001_printk("task 0x%p resp 0x%x "
4488 					" stat 0x%x but aborted by upper layer "
4489 					"\n", task, ts->resp, ts->stat));
4490 				pm8001_ccb_task_free(pm8001_ha, task, ccb, tag);
4491 			} else {
4492 				spin_unlock_irqrestore(&task->task_state_lock,
4493 							flags);
4494 				pm8001_ccb_task_free_done(pm8001_ha, task,
4495 								ccb, tag);
4496 				return 0;
4497 			}
4498 		}
4499 	}
4500 
4501 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
4502 			sizeof(sata_cmd), 0);
4503 	return ret;
4504 }
4505 
4506 /**
4507  * pm8001_chip_phy_start_req - start phy via PHY_START COMMAND
4508  * @pm8001_ha: our hba card information.
4509  * @phy_id: the phy id which we wanted to start up.
4510  */
4511 static int
4512 pm8001_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id)
4513 {
4514 	struct phy_start_req payload;
4515 	struct inbound_queue_table *circularQ;
4516 	int ret;
4517 	u32 tag = 0x01;
4518 	u32 opcode = OPC_INB_PHYSTART;
4519 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4520 	memset(&payload, 0, sizeof(payload));
4521 	payload.tag = cpu_to_le32(tag);
4522 	/*
4523 	 ** [0:7]   PHY Identifier
4524 	 ** [8:11]  link rate 1.5G, 3G, 6G
4525 	 ** [12:13] link mode 01b SAS mode; 10b SATA mode; 11b both
4526 	 ** [14]    0b disable spin up hold; 1b enable spin up hold
4527 	 */
4528 	payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE |
4529 		LINKMODE_AUTO |	LINKRATE_15 |
4530 		LINKRATE_30 | LINKRATE_60 | phy_id);
4531 	payload.sas_identify.dev_type = SAS_END_DEVICE;
4532 	payload.sas_identify.initiator_bits = SAS_PROTOCOL_ALL;
4533 	memcpy(payload.sas_identify.sas_addr,
4534 		pm8001_ha->sas_addr, SAS_ADDR_SIZE);
4535 	payload.sas_identify.phy_id = phy_id;
4536 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
4537 			sizeof(payload), 0);
4538 	return ret;
4539 }
4540 
4541 /**
4542  * pm8001_chip_phy_stop_req - start phy via PHY_STOP COMMAND
4543  * @pm8001_ha: our hba card information.
4544  * @phy_id: the phy id which we wanted to start up.
4545  */
4546 static int pm8001_chip_phy_stop_req(struct pm8001_hba_info *pm8001_ha,
4547 				    u8 phy_id)
4548 {
4549 	struct phy_stop_req payload;
4550 	struct inbound_queue_table *circularQ;
4551 	int ret;
4552 	u32 tag = 0x01;
4553 	u32 opcode = OPC_INB_PHYSTOP;
4554 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4555 	memset(&payload, 0, sizeof(payload));
4556 	payload.tag = cpu_to_le32(tag);
4557 	payload.phy_id = cpu_to_le32(phy_id);
4558 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
4559 			sizeof(payload), 0);
4560 	return ret;
4561 }
4562 
4563 /*
4564  * see comments on pm8001_mpi_reg_resp.
4565  */
4566 static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
4567 	struct pm8001_device *pm8001_dev, u32 flag)
4568 {
4569 	struct reg_dev_req payload;
4570 	u32	opc;
4571 	u32 stp_sspsmp_sata = 0x4;
4572 	struct inbound_queue_table *circularQ;
4573 	u32 linkrate, phy_id;
4574 	int rc, tag = 0xdeadbeef;
4575 	struct pm8001_ccb_info *ccb;
4576 	u8 retryFlag = 0x1;
4577 	u16 firstBurstSize = 0;
4578 	u16 ITNT = 2000;
4579 	struct domain_device *dev = pm8001_dev->sas_device;
4580 	struct domain_device *parent_dev = dev->parent;
4581 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4582 
4583 	memset(&payload, 0, sizeof(payload));
4584 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
4585 	if (rc)
4586 		return rc;
4587 	ccb = &pm8001_ha->ccb_info[tag];
4588 	ccb->device = pm8001_dev;
4589 	ccb->ccb_tag = tag;
4590 	payload.tag = cpu_to_le32(tag);
4591 	if (flag == 1)
4592 		stp_sspsmp_sata = 0x02; /*direct attached sata */
4593 	else {
4594 		if (pm8001_dev->dev_type == SAS_SATA_DEV)
4595 			stp_sspsmp_sata = 0x00; /* stp*/
4596 		else if (pm8001_dev->dev_type == SAS_END_DEVICE ||
4597 			pm8001_dev->dev_type == SAS_EDGE_EXPANDER_DEVICE ||
4598 			pm8001_dev->dev_type == SAS_FANOUT_EXPANDER_DEVICE)
4599 			stp_sspsmp_sata = 0x01; /*ssp or smp*/
4600 	}
4601 	if (parent_dev && dev_is_expander(parent_dev->dev_type))
4602 		phy_id = parent_dev->ex_dev.ex_phy->phy_id;
4603 	else
4604 		phy_id = pm8001_dev->attached_phy;
4605 	opc = OPC_INB_REG_DEV;
4606 	linkrate = (pm8001_dev->sas_device->linkrate < dev->port->linkrate) ?
4607 			pm8001_dev->sas_device->linkrate : dev->port->linkrate;
4608 	payload.phyid_portid =
4609 		cpu_to_le32(((pm8001_dev->sas_device->port->id) & 0x0F) |
4610 		((phy_id & 0x0F) << 4));
4611 	payload.dtype_dlr_retry = cpu_to_le32((retryFlag & 0x01) |
4612 		((linkrate & 0x0F) * 0x1000000) |
4613 		((stp_sspsmp_sata & 0x03) * 0x10000000));
4614 	payload.firstburstsize_ITNexustimeout =
4615 		cpu_to_le32(ITNT | (firstBurstSize * 0x10000));
4616 	memcpy(payload.sas_addr, pm8001_dev->sas_device->sas_addr,
4617 		SAS_ADDR_SIZE);
4618 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4619 			sizeof(payload), 0);
4620 	return rc;
4621 }
4622 
4623 /*
4624  * see comments on pm8001_mpi_reg_resp.
4625  */
4626 int pm8001_chip_dereg_dev_req(struct pm8001_hba_info *pm8001_ha,
4627 	u32 device_id)
4628 {
4629 	struct dereg_dev_req payload;
4630 	u32 opc = OPC_INB_DEREG_DEV_HANDLE;
4631 	int ret;
4632 	struct inbound_queue_table *circularQ;
4633 
4634 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4635 	memset(&payload, 0, sizeof(payload));
4636 	payload.tag = cpu_to_le32(1);
4637 	payload.device_id = cpu_to_le32(device_id);
4638 	PM8001_MSG_DBG(pm8001_ha,
4639 		pm8001_printk("unregister device device_id = %d\n", device_id));
4640 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4641 			sizeof(payload), 0);
4642 	return ret;
4643 }
4644 
4645 /**
4646  * pm8001_chip_phy_ctl_req - support the local phy operation
4647  * @pm8001_ha: our hba card information.
4648  * @phyId: the phy id which we wanted to operate
4649  * @phy_op: the phy operation to request
4650  */
4651 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
4652 	u32 phyId, u32 phy_op)
4653 {
4654 	struct local_phy_ctl_req payload;
4655 	struct inbound_queue_table *circularQ;
4656 	int ret;
4657 	u32 opc = OPC_INB_LOCAL_PHY_CONTROL;
4658 	memset(&payload, 0, sizeof(payload));
4659 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4660 	payload.tag = cpu_to_le32(1);
4661 	payload.phyop_phyid =
4662 		cpu_to_le32(((phy_op & 0xff) << 8) | (phyId & 0x0F));
4663 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4664 			sizeof(payload), 0);
4665 	return ret;
4666 }
4667 
4668 static u32 pm8001_chip_is_our_interrupt(struct pm8001_hba_info *pm8001_ha)
4669 {
4670 #ifdef PM8001_USE_MSIX
4671 	return 1;
4672 #else
4673 	u32 value;
4674 
4675 	value = pm8001_cr32(pm8001_ha, 0, MSGU_ODR);
4676 	if (value)
4677 		return 1;
4678 	return 0;
4679 #endif
4680 }
4681 
4682 /**
4683  * pm8001_chip_isr - PM8001 isr handler.
4684  * @pm8001_ha: our hba card information.
4685  * @vec: IRQ number
4686  */
4687 static irqreturn_t
4688 pm8001_chip_isr(struct pm8001_hba_info *pm8001_ha, u8 vec)
4689 {
4690 	pm8001_chip_interrupt_disable(pm8001_ha, vec);
4691 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
4692 		"irq vec %d, ODMR:0x%x\n",
4693 		vec, pm8001_cr32(pm8001_ha, 0, 0x30)));
4694 	process_oq(pm8001_ha, vec);
4695 	pm8001_chip_interrupt_enable(pm8001_ha, vec);
4696 	return IRQ_HANDLED;
4697 }
4698 
4699 static int send_task_abort(struct pm8001_hba_info *pm8001_ha, u32 opc,
4700 	u32 dev_id, u8 flag, u32 task_tag, u32 cmd_tag)
4701 {
4702 	struct task_abort_req task_abort;
4703 	struct inbound_queue_table *circularQ;
4704 	int ret;
4705 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4706 	memset(&task_abort, 0, sizeof(task_abort));
4707 	if (ABORT_SINGLE == (flag & ABORT_MASK)) {
4708 		task_abort.abort_all = 0;
4709 		task_abort.device_id = cpu_to_le32(dev_id);
4710 		task_abort.tag_to_abort = cpu_to_le32(task_tag);
4711 		task_abort.tag = cpu_to_le32(cmd_tag);
4712 	} else if (ABORT_ALL == (flag & ABORT_MASK)) {
4713 		task_abort.abort_all = cpu_to_le32(1);
4714 		task_abort.device_id = cpu_to_le32(dev_id);
4715 		task_abort.tag = cpu_to_le32(cmd_tag);
4716 	}
4717 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
4718 			sizeof(task_abort), 0);
4719 	return ret;
4720 }
4721 
4722 /*
4723  * pm8001_chip_abort_task - SAS abort task when error or exception happened.
4724  */
4725 int pm8001_chip_abort_task(struct pm8001_hba_info *pm8001_ha,
4726 	struct pm8001_device *pm8001_dev, u8 flag, u32 task_tag, u32 cmd_tag)
4727 {
4728 	u32 opc, device_id;
4729 	int rc = TMF_RESP_FUNC_FAILED;
4730 	PM8001_EH_DBG(pm8001_ha,
4731 		pm8001_printk("cmd_tag = %x, abort task tag = 0x%x",
4732 			cmd_tag, task_tag));
4733 	if (pm8001_dev->dev_type == SAS_END_DEVICE)
4734 		opc = OPC_INB_SSP_ABORT;
4735 	else if (pm8001_dev->dev_type == SAS_SATA_DEV)
4736 		opc = OPC_INB_SATA_ABORT;
4737 	else
4738 		opc = OPC_INB_SMP_ABORT;/* SMP */
4739 	device_id = pm8001_dev->device_id;
4740 	rc = send_task_abort(pm8001_ha, opc, device_id, flag,
4741 		task_tag, cmd_tag);
4742 	if (rc != TMF_RESP_FUNC_COMPLETE)
4743 		PM8001_EH_DBG(pm8001_ha, pm8001_printk("rc= %d\n", rc));
4744 	return rc;
4745 }
4746 
4747 /**
4748  * pm8001_chip_ssp_tm_req - built the task management command.
4749  * @pm8001_ha: our hba card information.
4750  * @ccb: the ccb information.
4751  * @tmf: task management function.
4752  */
4753 int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
4754 	struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf)
4755 {
4756 	struct sas_task *task = ccb->task;
4757 	struct domain_device *dev = task->dev;
4758 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4759 	u32 opc = OPC_INB_SSPINITMSTART;
4760 	struct inbound_queue_table *circularQ;
4761 	struct ssp_ini_tm_start_req sspTMCmd;
4762 	int ret;
4763 
4764 	memset(&sspTMCmd, 0, sizeof(sspTMCmd));
4765 	sspTMCmd.device_id = cpu_to_le32(pm8001_dev->device_id);
4766 	sspTMCmd.relate_tag = cpu_to_le32(tmf->tag_of_task_to_be_managed);
4767 	sspTMCmd.tmf = cpu_to_le32(tmf->tmf);
4768 	memcpy(sspTMCmd.lun, task->ssp_task.LUN, 8);
4769 	sspTMCmd.tag = cpu_to_le32(ccb->ccb_tag);
4770 	if (pm8001_ha->chip_id != chip_8001)
4771 		sspTMCmd.ds_ads_m = 0x08;
4772 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4773 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sspTMCmd,
4774 			sizeof(sspTMCmd), 0);
4775 	return ret;
4776 }
4777 
4778 int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
4779 	void *payload)
4780 {
4781 	u32 opc = OPC_INB_GET_NVMD_DATA;
4782 	u32 nvmd_type;
4783 	int rc;
4784 	u32 tag;
4785 	struct pm8001_ccb_info *ccb;
4786 	struct inbound_queue_table *circularQ;
4787 	struct get_nvm_data_req nvmd_req;
4788 	struct fw_control_ex *fw_control_context;
4789 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4790 
4791 	nvmd_type = ioctl_payload->minor_function;
4792 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4793 	if (!fw_control_context)
4794 		return -ENOMEM;
4795 	fw_control_context->usrAddr = (u8 *)ioctl_payload->func_specific;
4796 	fw_control_context->len = ioctl_payload->rd_length;
4797 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4798 	memset(&nvmd_req, 0, sizeof(nvmd_req));
4799 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
4800 	if (rc) {
4801 		kfree(fw_control_context);
4802 		return rc;
4803 	}
4804 	ccb = &pm8001_ha->ccb_info[tag];
4805 	ccb->ccb_tag = tag;
4806 	ccb->fw_control_context = fw_control_context;
4807 	nvmd_req.tag = cpu_to_le32(tag);
4808 
4809 	switch (nvmd_type) {
4810 	case TWI_DEVICE: {
4811 		u32 twi_addr, twi_page_size;
4812 		twi_addr = 0xa8;
4813 		twi_page_size = 2;
4814 
4815 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
4816 			twi_page_size << 8 | TWI_DEVICE);
4817 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4818 		nvmd_req.resp_addr_hi =
4819 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4820 		nvmd_req.resp_addr_lo =
4821 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4822 		break;
4823 	}
4824 	case C_SEEPROM: {
4825 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
4826 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4827 		nvmd_req.resp_addr_hi =
4828 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4829 		nvmd_req.resp_addr_lo =
4830 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4831 		break;
4832 	}
4833 	case VPD_FLASH: {
4834 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
4835 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4836 		nvmd_req.resp_addr_hi =
4837 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4838 		nvmd_req.resp_addr_lo =
4839 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4840 		break;
4841 	}
4842 	case EXPAN_ROM: {
4843 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
4844 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4845 		nvmd_req.resp_addr_hi =
4846 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4847 		nvmd_req.resp_addr_lo =
4848 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4849 		break;
4850 	}
4851 	case IOP_RDUMP: {
4852 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | IOP_RDUMP);
4853 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4854 		nvmd_req.vpd_offset = cpu_to_le32(ioctl_payload->offset);
4855 		nvmd_req.resp_addr_hi =
4856 		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4857 		nvmd_req.resp_addr_lo =
4858 		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4859 		break;
4860 	}
4861 	default:
4862 		break;
4863 	}
4864 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req,
4865 			sizeof(nvmd_req), 0);
4866 	if (rc) {
4867 		kfree(fw_control_context);
4868 		pm8001_tag_free(pm8001_ha, tag);
4869 	}
4870 	return rc;
4871 }
4872 
4873 int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha,
4874 	void *payload)
4875 {
4876 	u32 opc = OPC_INB_SET_NVMD_DATA;
4877 	u32 nvmd_type;
4878 	int rc;
4879 	u32 tag;
4880 	struct pm8001_ccb_info *ccb;
4881 	struct inbound_queue_table *circularQ;
4882 	struct set_nvm_data_req nvmd_req;
4883 	struct fw_control_ex *fw_control_context;
4884 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4885 
4886 	nvmd_type = ioctl_payload->minor_function;
4887 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4888 	if (!fw_control_context)
4889 		return -ENOMEM;
4890 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4891 	memcpy(pm8001_ha->memoryMap.region[NVMD].virt_ptr,
4892 		&ioctl_payload->func_specific,
4893 		ioctl_payload->wr_length);
4894 	memset(&nvmd_req, 0, sizeof(nvmd_req));
4895 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
4896 	if (rc) {
4897 		kfree(fw_control_context);
4898 		return -EBUSY;
4899 	}
4900 	ccb = &pm8001_ha->ccb_info[tag];
4901 	ccb->fw_control_context = fw_control_context;
4902 	ccb->ccb_tag = tag;
4903 	nvmd_req.tag = cpu_to_le32(tag);
4904 	switch (nvmd_type) {
4905 	case TWI_DEVICE: {
4906 		u32 twi_addr, twi_page_size;
4907 		twi_addr = 0xa8;
4908 		twi_page_size = 2;
4909 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4910 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
4911 			twi_page_size << 8 | TWI_DEVICE);
4912 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4913 		nvmd_req.resp_addr_hi =
4914 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4915 		nvmd_req.resp_addr_lo =
4916 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4917 		break;
4918 	}
4919 	case C_SEEPROM:
4920 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
4921 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4922 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4923 		nvmd_req.resp_addr_hi =
4924 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4925 		nvmd_req.resp_addr_lo =
4926 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4927 		break;
4928 	case VPD_FLASH:
4929 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
4930 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4931 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4932 		nvmd_req.resp_addr_hi =
4933 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4934 		nvmd_req.resp_addr_lo =
4935 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4936 		break;
4937 	case EXPAN_ROM:
4938 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
4939 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4940 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4941 		nvmd_req.resp_addr_hi =
4942 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4943 		nvmd_req.resp_addr_lo =
4944 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4945 		break;
4946 	default:
4947 		break;
4948 	}
4949 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req,
4950 			sizeof(nvmd_req), 0);
4951 	if (rc) {
4952 		kfree(fw_control_context);
4953 		pm8001_tag_free(pm8001_ha, tag);
4954 	}
4955 	return rc;
4956 }
4957 
4958 /**
4959  * pm8001_chip_fw_flash_update_build - support the firmware update operation
4960  * @pm8001_ha: our hba card information.
4961  * @fw_flash_updata_info: firmware flash update param
4962  * @tag: Tag to apply to the payload
4963  */
4964 int
4965 pm8001_chip_fw_flash_update_build(struct pm8001_hba_info *pm8001_ha,
4966 	void *fw_flash_updata_info, u32 tag)
4967 {
4968 	struct fw_flash_Update_req payload;
4969 	struct fw_flash_updata_info *info;
4970 	struct inbound_queue_table *circularQ;
4971 	int ret;
4972 	u32 opc = OPC_INB_FW_FLASH_UPDATE;
4973 
4974 	memset(&payload, 0, sizeof(struct fw_flash_Update_req));
4975 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4976 	info = fw_flash_updata_info;
4977 	payload.tag = cpu_to_le32(tag);
4978 	payload.cur_image_len = cpu_to_le32(info->cur_image_len);
4979 	payload.cur_image_offset = cpu_to_le32(info->cur_image_offset);
4980 	payload.total_image_len = cpu_to_le32(info->total_image_len);
4981 	payload.len = info->sgl.im_len.len ;
4982 	payload.sgl_addr_lo =
4983 		cpu_to_le32(lower_32_bits(le64_to_cpu(info->sgl.addr)));
4984 	payload.sgl_addr_hi =
4985 		cpu_to_le32(upper_32_bits(le64_to_cpu(info->sgl.addr)));
4986 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4987 			sizeof(payload), 0);
4988 	return ret;
4989 }
4990 
4991 int
4992 pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
4993 	void *payload)
4994 {
4995 	struct fw_flash_updata_info flash_update_info;
4996 	struct fw_control_info *fw_control;
4997 	struct fw_control_ex *fw_control_context;
4998 	int rc;
4999 	u32 tag;
5000 	struct pm8001_ccb_info *ccb;
5001 	void *buffer = pm8001_ha->memoryMap.region[FW_FLASH].virt_ptr;
5002 	dma_addr_t phys_addr = pm8001_ha->memoryMap.region[FW_FLASH].phys_addr;
5003 	struct pm8001_ioctl_payload *ioctl_payload = payload;
5004 
5005 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
5006 	if (!fw_control_context)
5007 		return -ENOMEM;
5008 	fw_control = (struct fw_control_info *)&ioctl_payload->func_specific;
5009 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
5010 		"dma fw_control context input length :%x\n", fw_control->len));
5011 	memcpy(buffer, fw_control->buffer, fw_control->len);
5012 	flash_update_info.sgl.addr = cpu_to_le64(phys_addr);
5013 	flash_update_info.sgl.im_len.len = cpu_to_le32(fw_control->len);
5014 	flash_update_info.sgl.im_len.e = 0;
5015 	flash_update_info.cur_image_offset = fw_control->offset;
5016 	flash_update_info.cur_image_len = fw_control->len;
5017 	flash_update_info.total_image_len = fw_control->size;
5018 	fw_control_context->fw_control = fw_control;
5019 	fw_control_context->virtAddr = buffer;
5020 	fw_control_context->phys_addr = phys_addr;
5021 	fw_control_context->len = fw_control->len;
5022 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
5023 	if (rc) {
5024 		kfree(fw_control_context);
5025 		return -EBUSY;
5026 	}
5027 	ccb = &pm8001_ha->ccb_info[tag];
5028 	ccb->fw_control_context = fw_control_context;
5029 	ccb->ccb_tag = tag;
5030 	rc = pm8001_chip_fw_flash_update_build(pm8001_ha, &flash_update_info,
5031 		tag);
5032 	return rc;
5033 }
5034 
5035 ssize_t
5036 pm8001_get_gsm_dump(struct device *cdev, u32 length, char *buf)
5037 {
5038 	u32 value, rem, offset = 0, bar = 0;
5039 	u32 index, work_offset, dw_length;
5040 	u32 shift_value, gsm_base, gsm_dump_offset;
5041 	char *direct_data;
5042 	struct Scsi_Host *shost = class_to_shost(cdev);
5043 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
5044 	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
5045 
5046 	direct_data = buf;
5047 	gsm_dump_offset = pm8001_ha->fatal_forensic_shift_offset;
5048 
5049 	/* check max is 1 Mbytes */
5050 	if ((length > 0x100000) || (gsm_dump_offset & 3) ||
5051 		((gsm_dump_offset + length) > 0x1000000))
5052 			return -EINVAL;
5053 
5054 	if (pm8001_ha->chip_id == chip_8001)
5055 		bar = 2;
5056 	else
5057 		bar = 1;
5058 
5059 	work_offset = gsm_dump_offset & 0xFFFF0000;
5060 	offset = gsm_dump_offset & 0x0000FFFF;
5061 	gsm_dump_offset = work_offset;
5062 	/* adjust length to dword boundary */
5063 	rem = length & 3;
5064 	dw_length = length >> 2;
5065 
5066 	for (index = 0; index < dw_length; index++) {
5067 		if ((work_offset + offset) & 0xFFFF0000) {
5068 			if (pm8001_ha->chip_id == chip_8001)
5069 				shift_value = ((gsm_dump_offset + offset) &
5070 						SHIFT_REG_64K_MASK);
5071 			else
5072 				shift_value = (((gsm_dump_offset + offset) &
5073 						SHIFT_REG_64K_MASK) >>
5074 						SHIFT_REG_BIT_SHIFT);
5075 
5076 			if (pm8001_ha->chip_id == chip_8001) {
5077 				gsm_base = GSM_BASE;
5078 				if (-1 == pm8001_bar4_shift(pm8001_ha,
5079 						(gsm_base + shift_value)))
5080 					return -EIO;
5081 			} else {
5082 				gsm_base = 0;
5083 				if (-1 == pm80xx_bar4_shift(pm8001_ha,
5084 						(gsm_base + shift_value)))
5085 					return -EIO;
5086 			}
5087 			gsm_dump_offset = (gsm_dump_offset + offset) &
5088 						0xFFFF0000;
5089 			work_offset = 0;
5090 			offset = offset & 0x0000FFFF;
5091 		}
5092 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
5093 						0x0000FFFF);
5094 		direct_data += sprintf(direct_data, "%08x ", value);
5095 		offset += 4;
5096 	}
5097 	if (rem != 0) {
5098 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
5099 						0x0000FFFF);
5100 		/* xfr for non_dw */
5101 		direct_data += sprintf(direct_data, "%08x ", value);
5102 	}
5103 	/* Shift back to BAR4 original address */
5104 	if (-1 == pm8001_bar4_shift(pm8001_ha, 0))
5105 			return -EIO;
5106 	pm8001_ha->fatal_forensic_shift_offset += 1024;
5107 
5108 	if (pm8001_ha->fatal_forensic_shift_offset >= 0x100000)
5109 		pm8001_ha->fatal_forensic_shift_offset = 0;
5110 	return direct_data - buf;
5111 }
5112 
5113 int
5114 pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
5115 	struct pm8001_device *pm8001_dev, u32 state)
5116 {
5117 	struct set_dev_state_req payload;
5118 	struct inbound_queue_table *circularQ;
5119 	struct pm8001_ccb_info *ccb;
5120 	int rc;
5121 	u32 tag;
5122 	u32 opc = OPC_INB_SET_DEVICE_STATE;
5123 	memset(&payload, 0, sizeof(payload));
5124 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
5125 	if (rc)
5126 		return -1;
5127 	ccb = &pm8001_ha->ccb_info[tag];
5128 	ccb->ccb_tag = tag;
5129 	ccb->device = pm8001_dev;
5130 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
5131 	payload.tag = cpu_to_le32(tag);
5132 	payload.device_id = cpu_to_le32(pm8001_dev->device_id);
5133 	payload.nds = cpu_to_le32(state);
5134 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
5135 			sizeof(payload), 0);
5136 	return rc;
5137 
5138 }
5139 
5140 static int
5141 pm8001_chip_sas_re_initialization(struct pm8001_hba_info *pm8001_ha)
5142 {
5143 	struct sas_re_initialization_req payload;
5144 	struct inbound_queue_table *circularQ;
5145 	struct pm8001_ccb_info *ccb;
5146 	int rc;
5147 	u32 tag;
5148 	u32 opc = OPC_INB_SAS_RE_INITIALIZE;
5149 	memset(&payload, 0, sizeof(payload));
5150 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
5151 	if (rc)
5152 		return -ENOMEM;
5153 	ccb = &pm8001_ha->ccb_info[tag];
5154 	ccb->ccb_tag = tag;
5155 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
5156 	payload.tag = cpu_to_le32(tag);
5157 	payload.SSAHOLT = cpu_to_le32(0xd << 25);
5158 	payload.sata_hol_tmo = cpu_to_le32(80);
5159 	payload.open_reject_cmdretries_data_retries = cpu_to_le32(0xff00ff);
5160 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
5161 			sizeof(payload), 0);
5162 	if (rc)
5163 		pm8001_tag_free(pm8001_ha, tag);
5164 	return rc;
5165 
5166 }
5167 
5168 const struct pm8001_dispatch pm8001_8001_dispatch = {
5169 	.name			= "pmc8001",
5170 	.chip_init		= pm8001_chip_init,
5171 	.chip_soft_rst		= pm8001_chip_soft_rst,
5172 	.chip_rst		= pm8001_hw_chip_rst,
5173 	.chip_iounmap		= pm8001_chip_iounmap,
5174 	.isr			= pm8001_chip_isr,
5175 	.is_our_interrupt	= pm8001_chip_is_our_interrupt,
5176 	.isr_process_oq		= process_oq,
5177 	.interrupt_enable 	= pm8001_chip_interrupt_enable,
5178 	.interrupt_disable	= pm8001_chip_interrupt_disable,
5179 	.make_prd		= pm8001_chip_make_sg,
5180 	.smp_req		= pm8001_chip_smp_req,
5181 	.ssp_io_req		= pm8001_chip_ssp_io_req,
5182 	.sata_req		= pm8001_chip_sata_req,
5183 	.phy_start_req		= pm8001_chip_phy_start_req,
5184 	.phy_stop_req		= pm8001_chip_phy_stop_req,
5185 	.reg_dev_req		= pm8001_chip_reg_dev_req,
5186 	.dereg_dev_req		= pm8001_chip_dereg_dev_req,
5187 	.phy_ctl_req		= pm8001_chip_phy_ctl_req,
5188 	.task_abort		= pm8001_chip_abort_task,
5189 	.ssp_tm_req		= pm8001_chip_ssp_tm_req,
5190 	.get_nvmd_req		= pm8001_chip_get_nvmd_req,
5191 	.set_nvmd_req		= pm8001_chip_set_nvmd_req,
5192 	.fw_flash_update_req	= pm8001_chip_fw_flash_update_req,
5193 	.set_dev_state_req	= pm8001_chip_set_dev_state_req,
5194 	.sas_re_init_req	= pm8001_chip_sas_re_initialization,
5195 };
5196