xref: /openbmc/linux/drivers/scsi/pm8001/pm8001_hwi.c (revision add48ba4)
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  */
337 static void update_inbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
338 				     int number)
339 {
340 	void __iomem *address = pm8001_ha->inbnd_q_tbl_addr;
341 	u16 offset = number * 0x20;
342 	pm8001_mw32(address, offset + 0x00,
343 		pm8001_ha->inbnd_q_tbl[number].element_pri_size_cnt);
344 	pm8001_mw32(address, offset + 0x04,
345 		pm8001_ha->inbnd_q_tbl[number].upper_base_addr);
346 	pm8001_mw32(address, offset + 0x08,
347 		pm8001_ha->inbnd_q_tbl[number].lower_base_addr);
348 	pm8001_mw32(address, offset + 0x0C,
349 		pm8001_ha->inbnd_q_tbl[number].ci_upper_base_addr);
350 	pm8001_mw32(address, offset + 0x10,
351 		pm8001_ha->inbnd_q_tbl[number].ci_lower_base_addr);
352 }
353 
354 /**
355  * update_outbnd_queue_table - update the outbound queue table to the HBA.
356  * @pm8001_ha: our hba card information
357  */
358 static void update_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
359 				      int number)
360 {
361 	void __iomem *address = pm8001_ha->outbnd_q_tbl_addr;
362 	u16 offset = number * 0x24;
363 	pm8001_mw32(address, offset + 0x00,
364 		pm8001_ha->outbnd_q_tbl[number].element_size_cnt);
365 	pm8001_mw32(address, offset + 0x04,
366 		pm8001_ha->outbnd_q_tbl[number].upper_base_addr);
367 	pm8001_mw32(address, offset + 0x08,
368 		pm8001_ha->outbnd_q_tbl[number].lower_base_addr);
369 	pm8001_mw32(address, offset + 0x0C,
370 		pm8001_ha->outbnd_q_tbl[number].pi_upper_base_addr);
371 	pm8001_mw32(address, offset + 0x10,
372 		pm8001_ha->outbnd_q_tbl[number].pi_lower_base_addr);
373 	pm8001_mw32(address, offset + 0x1C,
374 		pm8001_ha->outbnd_q_tbl[number].interrup_vec_cnt_delay);
375 }
376 
377 /**
378  * pm8001_bar4_shift - function is called to shift BAR base address
379  * @pm8001_ha : our hba card infomation
380  * @shiftValue : shifting value in memory bar.
381  */
382 int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue)
383 {
384 	u32 regVal;
385 	unsigned long start;
386 
387 	/* program the inbound AXI translation Lower Address */
388 	pm8001_cw32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW, shiftValue);
389 
390 	/* confirm the setting is written */
391 	start = jiffies + HZ; /* 1 sec */
392 	do {
393 		regVal = pm8001_cr32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW);
394 	} while ((regVal != shiftValue) && time_before(jiffies, start));
395 
396 	if (regVal != shiftValue) {
397 		PM8001_INIT_DBG(pm8001_ha,
398 			pm8001_printk("TIMEOUT:SPC_IBW_AXI_TRANSLATION_LOW"
399 			" = 0x%x\n", regVal));
400 		return -1;
401 	}
402 	return 0;
403 }
404 
405 /**
406  * mpi_set_phys_g3_with_ssc
407  * @pm8001_ha: our hba card information
408  * @SSCbit: set SSCbit to 0 to disable all phys ssc; 1 to enable all phys ssc.
409  */
410 static void mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha,
411 				     u32 SSCbit)
412 {
413 	u32 value, offset, i;
414 	unsigned long flags;
415 
416 #define SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR 0x00030000
417 #define SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR 0x00040000
418 #define SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET 0x1074
419 #define SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET 0x1074
420 #define PHY_G3_WITHOUT_SSC_BIT_SHIFT 12
421 #define PHY_G3_WITH_SSC_BIT_SHIFT 13
422 #define SNW3_PHY_CAPABILITIES_PARITY 31
423 
424    /*
425     * Using shifted destination address 0x3_0000:0x1074 + 0x4000*N (N=0:3)
426     * Using shifted destination address 0x4_0000:0x1074 + 0x4000*(N-4) (N=4:7)
427     */
428 	spin_lock_irqsave(&pm8001_ha->lock, flags);
429 	if (-1 == pm8001_bar4_shift(pm8001_ha,
430 				SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR)) {
431 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
432 		return;
433 	}
434 
435 	for (i = 0; i < 4; i++) {
436 		offset = SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET + 0x4000 * i;
437 		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
438 	}
439 	/* shift membase 3 for SAS2_SETTINGS_LOCAL_PHY 4 - 7 */
440 	if (-1 == pm8001_bar4_shift(pm8001_ha,
441 				SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR)) {
442 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
443 		return;
444 	}
445 	for (i = 4; i < 8; i++) {
446 		offset = SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
447 		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
448 	}
449 	/*************************************************************
450 	Change the SSC upspreading value to 0x0 so that upspreading is disabled.
451 	Device MABC SMOD0 Controls
452 	Address: (via MEMBASE-III):
453 	Using shifted destination address 0x0_0000: with Offset 0xD8
454 
455 	31:28 R/W Reserved Do not change
456 	27:24 R/W SAS_SMOD_SPRDUP 0000
457 	23:20 R/W SAS_SMOD_SPRDDN 0000
458 	19:0  R/W  Reserved Do not change
459 	Upon power-up this register will read as 0x8990c016,
460 	and I would like you to change the SAS_SMOD_SPRDUP bits to 0b0000
461 	so that the written value will be 0x8090c016.
462 	This will ensure only down-spreading SSC is enabled on the SPC.
463 	*************************************************************/
464 	value = pm8001_cr32(pm8001_ha, 2, 0xd8);
465 	pm8001_cw32(pm8001_ha, 2, 0xd8, 0x8000C016);
466 
467 	/*set the shifted destination address to 0x0 to avoid error operation */
468 	pm8001_bar4_shift(pm8001_ha, 0x0);
469 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
470 	return;
471 }
472 
473 /**
474  * mpi_set_open_retry_interval_reg
475  * @pm8001_ha: our hba card information
476  * @interval - interval time for each OPEN_REJECT (RETRY). The units are in 1us.
477  */
478 static void mpi_set_open_retry_interval_reg(struct pm8001_hba_info *pm8001_ha,
479 					    u32 interval)
480 {
481 	u32 offset;
482 	u32 value;
483 	u32 i;
484 	unsigned long flags;
485 
486 #define OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR 0x00030000
487 #define OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR 0x00040000
488 #define OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET 0x30B4
489 #define OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET 0x30B4
490 #define OPEN_RETRY_INTERVAL_REG_MASK 0x0000FFFF
491 
492 	value = interval & OPEN_RETRY_INTERVAL_REG_MASK;
493 	spin_lock_irqsave(&pm8001_ha->lock, flags);
494 	/* shift bar and set the OPEN_REJECT(RETRY) interval time of PHY 0 -3.*/
495 	if (-1 == pm8001_bar4_shift(pm8001_ha,
496 			     OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR)) {
497 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
498 		return;
499 	}
500 	for (i = 0; i < 4; i++) {
501 		offset = OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET + 0x4000 * i;
502 		pm8001_cw32(pm8001_ha, 2, offset, value);
503 	}
504 
505 	if (-1 == pm8001_bar4_shift(pm8001_ha,
506 			     OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR)) {
507 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
508 		return;
509 	}
510 	for (i = 4; i < 8; i++) {
511 		offset = OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
512 		pm8001_cw32(pm8001_ha, 2, offset, value);
513 	}
514 	/*set the shifted destination address to 0x0 to avoid error operation */
515 	pm8001_bar4_shift(pm8001_ha, 0x0);
516 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
517 	return;
518 }
519 
520 /**
521  * mpi_init_check - check firmware initialization status.
522  * @pm8001_ha: our hba card information
523  */
524 static int mpi_init_check(struct pm8001_hba_info *pm8001_ha)
525 {
526 	u32 max_wait_count;
527 	u32 value;
528 	u32 gst_len_mpistate;
529 	/* Write bit0=1 to Inbound DoorBell Register to tell the SPC FW the
530 	table is updated */
531 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_UPDATE);
532 	/* wait until Inbound DoorBell Clear Register toggled */
533 	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
534 	do {
535 		udelay(1);
536 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
537 		value &= SPC_MSGU_CFG_TABLE_UPDATE;
538 	} while ((value != 0) && (--max_wait_count));
539 
540 	if (!max_wait_count)
541 		return -1;
542 	/* check the MPI-State for initialization */
543 	gst_len_mpistate =
544 		pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
545 		GST_GSTLEN_MPIS_OFFSET);
546 	if (GST_MPI_STATE_INIT != (gst_len_mpistate & GST_MPI_STATE_MASK))
547 		return -1;
548 	/* check MPI Initialization error */
549 	gst_len_mpistate = gst_len_mpistate >> 16;
550 	if (0x0000 != gst_len_mpistate)
551 		return -1;
552 	return 0;
553 }
554 
555 /**
556  * check_fw_ready - The LLDD check if the FW is ready, if not, return error.
557  * @pm8001_ha: our hba card information
558  */
559 static int check_fw_ready(struct pm8001_hba_info *pm8001_ha)
560 {
561 	u32 value, value1;
562 	u32 max_wait_count;
563 	/* check error state */
564 	value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
565 	value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
566 	/* check AAP error */
567 	if (SCRATCH_PAD1_ERR == (value & SCRATCH_PAD_STATE_MASK)) {
568 		/* error state */
569 		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
570 		return -1;
571 	}
572 
573 	/* check IOP error */
574 	if (SCRATCH_PAD2_ERR == (value1 & SCRATCH_PAD_STATE_MASK)) {
575 		/* error state */
576 		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3);
577 		return -1;
578 	}
579 
580 	/* bit 4-31 of scratch pad1 should be zeros if it is not
581 	in error state*/
582 	if (value & SCRATCH_PAD1_STATE_MASK) {
583 		/* error case */
584 		pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
585 		return -1;
586 	}
587 
588 	/* bit 2, 4-31 of scratch pad2 should be zeros if it is not
589 	in error state */
590 	if (value1 & SCRATCH_PAD2_STATE_MASK) {
591 		/* error case */
592 		return -1;
593 	}
594 
595 	max_wait_count = 1 * 1000 * 1000;/* 1 sec timeout */
596 
597 	/* wait until scratch pad 1 and 2 registers in ready state  */
598 	do {
599 		udelay(1);
600 		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
601 			& SCRATCH_PAD1_RDY;
602 		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
603 			& SCRATCH_PAD2_RDY;
604 		if ((--max_wait_count) == 0)
605 			return -1;
606 	} while ((value != SCRATCH_PAD1_RDY) || (value1 != SCRATCH_PAD2_RDY));
607 	return 0;
608 }
609 
610 static void init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
611 {
612 	void __iomem *base_addr;
613 	u32	value;
614 	u32	offset;
615 	u32	pcibar;
616 	u32	pcilogic;
617 
618 	value = pm8001_cr32(pm8001_ha, 0, 0x44);
619 	offset = value & 0x03FFFFFF;
620 	PM8001_INIT_DBG(pm8001_ha,
621 		pm8001_printk("Scratchpad 0 Offset: %x\n", offset));
622 	pcilogic = (value & 0xFC000000) >> 26;
623 	pcibar = get_pci_bar_index(pcilogic);
624 	PM8001_INIT_DBG(pm8001_ha,
625 		pm8001_printk("Scratchpad 0 PCI BAR: %d\n", pcibar));
626 	pm8001_ha->main_cfg_tbl_addr = base_addr =
627 		pm8001_ha->io_mem[pcibar].memvirtaddr + offset;
628 	pm8001_ha->general_stat_tbl_addr =
629 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x18);
630 	pm8001_ha->inbnd_q_tbl_addr =
631 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x1C);
632 	pm8001_ha->outbnd_q_tbl_addr =
633 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x20);
634 }
635 
636 /**
637  * pm8001_chip_init - the main init function that initialize whole PM8001 chip.
638  * @pm8001_ha: our hba card information
639  */
640 static int pm8001_chip_init(struct pm8001_hba_info *pm8001_ha)
641 {
642 	u8 i = 0;
643 	u16 deviceid;
644 	pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
645 	/* 8081 controllers need BAR shift to access MPI space
646 	* as this is shared with BIOS data */
647 	if (deviceid == 0x8081 || deviceid == 0x0042) {
648 		if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_SM_BASE)) {
649 			PM8001_FAIL_DBG(pm8001_ha,
650 				pm8001_printk("Shift Bar4 to 0x%x failed\n",
651 					GSM_SM_BASE));
652 			return -1;
653 		}
654 	}
655 	/* check the firmware status */
656 	if (-1 == check_fw_ready(pm8001_ha)) {
657 		PM8001_FAIL_DBG(pm8001_ha,
658 			pm8001_printk("Firmware is not ready!\n"));
659 		return -EBUSY;
660 	}
661 
662 	/* Initialize pci space address eg: mpi offset */
663 	init_pci_device_addresses(pm8001_ha);
664 	init_default_table_values(pm8001_ha);
665 	read_main_config_table(pm8001_ha);
666 	read_general_status_table(pm8001_ha);
667 	read_inbnd_queue_table(pm8001_ha);
668 	read_outbnd_queue_table(pm8001_ha);
669 	/* update main config table ,inbound table and outbound table */
670 	update_main_config_table(pm8001_ha);
671 	for (i = 0; i < PM8001_MAX_INB_NUM; i++)
672 		update_inbnd_queue_table(pm8001_ha, i);
673 	for (i = 0; i < PM8001_MAX_OUTB_NUM; i++)
674 		update_outbnd_queue_table(pm8001_ha, i);
675 	/* 8081 controller donot require these operations */
676 	if (deviceid != 0x8081 && deviceid != 0x0042) {
677 		mpi_set_phys_g3_with_ssc(pm8001_ha, 0);
678 		/* 7->130ms, 34->500ms, 119->1.5s */
679 		mpi_set_open_retry_interval_reg(pm8001_ha, 119);
680 	}
681 	/* notify firmware update finished and check initialization status */
682 	if (0 == mpi_init_check(pm8001_ha)) {
683 		PM8001_INIT_DBG(pm8001_ha,
684 			pm8001_printk("MPI initialize successful!\n"));
685 	} else
686 		return -EBUSY;
687 	/*This register is a 16-bit timer with a resolution of 1us. This is the
688 	timer used for interrupt delay/coalescing in the PCIe Application Layer.
689 	Zero is not a valid value. A value of 1 in the register will cause the
690 	interrupts to be normal. A value greater than 1 will cause coalescing
691 	delays.*/
692 	pm8001_cw32(pm8001_ha, 1, 0x0033c0, 0x1);
693 	pm8001_cw32(pm8001_ha, 1, 0x0033c4, 0x0);
694 	return 0;
695 }
696 
697 static int mpi_uninit_check(struct pm8001_hba_info *pm8001_ha)
698 {
699 	u32 max_wait_count;
700 	u32 value;
701 	u32 gst_len_mpistate;
702 	u16 deviceid;
703 	pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
704 	if (deviceid == 0x8081 || deviceid == 0x0042) {
705 		if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_SM_BASE)) {
706 			PM8001_FAIL_DBG(pm8001_ha,
707 				pm8001_printk("Shift Bar4 to 0x%x failed\n",
708 					GSM_SM_BASE));
709 			return -1;
710 		}
711 	}
712 	init_pci_device_addresses(pm8001_ha);
713 	/* Write bit1=1 to Inbound DoorBell Register to tell the SPC FW the
714 	table is stop */
715 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_RESET);
716 
717 	/* wait until Inbound DoorBell Clear Register toggled */
718 	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
719 	do {
720 		udelay(1);
721 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
722 		value &= SPC_MSGU_CFG_TABLE_RESET;
723 	} while ((value != 0) && (--max_wait_count));
724 
725 	if (!max_wait_count) {
726 		PM8001_FAIL_DBG(pm8001_ha,
727 			pm8001_printk("TIMEOUT:IBDB value/=0x%x\n", value));
728 		return -1;
729 	}
730 
731 	/* check the MPI-State for termination in progress */
732 	/* wait until Inbound DoorBell Clear Register toggled */
733 	max_wait_count = 1 * 1000 * 1000;  /* 1 sec */
734 	do {
735 		udelay(1);
736 		gst_len_mpistate =
737 			pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
738 			GST_GSTLEN_MPIS_OFFSET);
739 		if (GST_MPI_STATE_UNINIT ==
740 			(gst_len_mpistate & GST_MPI_STATE_MASK))
741 			break;
742 	} while (--max_wait_count);
743 	if (!max_wait_count) {
744 		PM8001_FAIL_DBG(pm8001_ha,
745 			pm8001_printk(" TIME OUT MPI State = 0x%x\n",
746 				gst_len_mpistate & GST_MPI_STATE_MASK));
747 		return -1;
748 	}
749 	return 0;
750 }
751 
752 /**
753  * soft_reset_ready_check - Function to check FW is ready for soft reset.
754  * @pm8001_ha: our hba card information
755  */
756 static u32 soft_reset_ready_check(struct pm8001_hba_info *pm8001_ha)
757 {
758 	u32 regVal, regVal1, regVal2;
759 	if (mpi_uninit_check(pm8001_ha) != 0) {
760 		PM8001_FAIL_DBG(pm8001_ha,
761 			pm8001_printk("MPI state is not ready\n"));
762 		return -1;
763 	}
764 	/* read the scratch pad 2 register bit 2 */
765 	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
766 		& SCRATCH_PAD2_FWRDY_RST;
767 	if (regVal == SCRATCH_PAD2_FWRDY_RST) {
768 		PM8001_INIT_DBG(pm8001_ha,
769 			pm8001_printk("Firmware is ready for reset .\n"));
770 	} else {
771 		unsigned long flags;
772 		/* Trigger NMI twice via RB6 */
773 		spin_lock_irqsave(&pm8001_ha->lock, flags);
774 		if (-1 == pm8001_bar4_shift(pm8001_ha, RB6_ACCESS_REG)) {
775 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
776 			PM8001_FAIL_DBG(pm8001_ha,
777 				pm8001_printk("Shift Bar4 to 0x%x failed\n",
778 					RB6_ACCESS_REG));
779 			return -1;
780 		}
781 		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET,
782 			RB6_MAGIC_NUMBER_RST);
783 		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET, RB6_MAGIC_NUMBER_RST);
784 		/* wait for 100 ms */
785 		mdelay(100);
786 		regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2) &
787 			SCRATCH_PAD2_FWRDY_RST;
788 		if (regVal != SCRATCH_PAD2_FWRDY_RST) {
789 			regVal1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
790 			regVal2 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
791 			PM8001_FAIL_DBG(pm8001_ha,
792 				pm8001_printk("TIMEOUT:MSGU_SCRATCH_PAD1"
793 				"=0x%x, MSGU_SCRATCH_PAD2=0x%x\n",
794 				regVal1, regVal2));
795 			PM8001_FAIL_DBG(pm8001_ha,
796 				pm8001_printk("SCRATCH_PAD0 value = 0x%x\n",
797 				pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0)));
798 			PM8001_FAIL_DBG(pm8001_ha,
799 				pm8001_printk("SCRATCH_PAD3 value = 0x%x\n",
800 				pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3)));
801 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
802 			return -1;
803 		}
804 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
805 	}
806 	return 0;
807 }
808 
809 /**
810  * pm8001_chip_soft_rst - soft reset the PM8001 chip, so that the clear all
811  * the FW register status to the originated status.
812  * @pm8001_ha: our hba card information
813  */
814 static int
815 pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha)
816 {
817 	u32	regVal, toggleVal;
818 	u32	max_wait_count;
819 	u32	regVal1, regVal2, regVal3;
820 	u32	signature = 0x252acbcd; /* for host scratch pad0 */
821 	unsigned long flags;
822 
823 	/* step1: Check FW is ready for soft reset */
824 	if (soft_reset_ready_check(pm8001_ha) != 0) {
825 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("FW is not ready\n"));
826 		return -1;
827 	}
828 
829 	/* step 2: clear NMI status register on AAP1 and IOP, write the same
830 	value to clear */
831 	/* map 0x60000 to BAR4(0x20), BAR2(win) */
832 	spin_lock_irqsave(&pm8001_ha->lock, flags);
833 	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_AAP1_ADDR_BASE)) {
834 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
835 		PM8001_FAIL_DBG(pm8001_ha,
836 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
837 			MBIC_AAP1_ADDR_BASE));
838 		return -1;
839 	}
840 	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP);
841 	PM8001_INIT_DBG(pm8001_ha,
842 		pm8001_printk("MBIC - NMI Enable VPE0 (IOP)= 0x%x\n", regVal));
843 	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP, 0x0);
844 	/* map 0x70000 to BAR4(0x20), BAR2(win) */
845 	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_IOP_ADDR_BASE)) {
846 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
847 		PM8001_FAIL_DBG(pm8001_ha,
848 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
849 			MBIC_IOP_ADDR_BASE));
850 		return -1;
851 	}
852 	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1);
853 	PM8001_INIT_DBG(pm8001_ha,
854 		pm8001_printk("MBIC - NMI Enable VPE0 (AAP1)= 0x%x\n", regVal));
855 	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1, 0x0);
856 
857 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE);
858 	PM8001_INIT_DBG(pm8001_ha,
859 		pm8001_printk("PCIE -Event Interrupt Enable = 0x%x\n", regVal));
860 	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE, 0x0);
861 
862 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT);
863 	PM8001_INIT_DBG(pm8001_ha,
864 		pm8001_printk("PCIE - Event Interrupt  = 0x%x\n", regVal));
865 	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT, regVal);
866 
867 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE);
868 	PM8001_INIT_DBG(pm8001_ha,
869 		pm8001_printk("PCIE -Error Interrupt Enable = 0x%x\n", regVal));
870 	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE, 0x0);
871 
872 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT);
873 	PM8001_INIT_DBG(pm8001_ha,
874 		pm8001_printk("PCIE - Error Interrupt = 0x%x\n", regVal));
875 	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT, regVal);
876 
877 	/* read the scratch pad 1 register bit 2 */
878 	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
879 		& SCRATCH_PAD1_RST;
880 	toggleVal = regVal ^ SCRATCH_PAD1_RST;
881 
882 	/* set signature in host scratch pad0 register to tell SPC that the
883 	host performs the soft reset */
884 	pm8001_cw32(pm8001_ha, 0, MSGU_HOST_SCRATCH_PAD_0, signature);
885 
886 	/* read required registers for confirmming */
887 	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
888 	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
889 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
890 		PM8001_FAIL_DBG(pm8001_ha,
891 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
892 			GSM_ADDR_BASE));
893 		return -1;
894 	}
895 	PM8001_INIT_DBG(pm8001_ha,
896 		pm8001_printk("GSM 0x0(0x00007b88)-GSM Configuration and"
897 		" Reset = 0x%x\n",
898 		pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
899 
900 	/* step 3: host read GSM Configuration and Reset register */
901 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
902 	/* Put those bits to low */
903 	/* GSM XCBI offset = 0x70 0000
904 	0x00 Bit 13 COM_SLV_SW_RSTB 1
905 	0x00 Bit 12 QSSP_SW_RSTB 1
906 	0x00 Bit 11 RAAE_SW_RSTB 1
907 	0x00 Bit 9 RB_1_SW_RSTB 1
908 	0x00 Bit 8 SM_SW_RSTB 1
909 	*/
910 	regVal &= ~(0x00003b00);
911 	/* host write GSM Configuration and Reset register */
912 	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
913 	PM8001_INIT_DBG(pm8001_ha,
914 		pm8001_printk("GSM 0x0 (0x00007b88 ==> 0x00004088) - GSM "
915 		"Configuration and Reset is set to = 0x%x\n",
916 		pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
917 
918 	/* step 4: */
919 	/* disable GSM - Read Address Parity Check */
920 	regVal1 = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
921 	PM8001_INIT_DBG(pm8001_ha,
922 		pm8001_printk("GSM 0x700038 - Read Address Parity Check "
923 		"Enable = 0x%x\n", regVal1));
924 	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, 0x0);
925 	PM8001_INIT_DBG(pm8001_ha,
926 		pm8001_printk("GSM 0x700038 - Read Address Parity Check Enable"
927 		"is set to = 0x%x\n",
928 		pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK)));
929 
930 	/* disable GSM - Write Address Parity Check */
931 	regVal2 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
932 	PM8001_INIT_DBG(pm8001_ha,
933 		pm8001_printk("GSM 0x700040 - Write Address Parity Check"
934 		" Enable = 0x%x\n", regVal2));
935 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, 0x0);
936 	PM8001_INIT_DBG(pm8001_ha,
937 		pm8001_printk("GSM 0x700040 - Write Address Parity Check "
938 		"Enable is set to = 0x%x\n",
939 		pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK)));
940 
941 	/* disable GSM - Write Data Parity Check */
942 	regVal3 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
943 	PM8001_INIT_DBG(pm8001_ha,
944 		pm8001_printk("GSM 0x300048 - Write Data Parity Check"
945 		" Enable = 0x%x\n", regVal3));
946 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, 0x0);
947 	PM8001_INIT_DBG(pm8001_ha,
948 		pm8001_printk("GSM 0x300048 - Write Data Parity Check Enable"
949 		"is set to = 0x%x\n",
950 	pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK)));
951 
952 	/* step 5: delay 10 usec */
953 	udelay(10);
954 	/* step 5-b: set GPIO-0 output control to tristate anyway */
955 	if (-1 == pm8001_bar4_shift(pm8001_ha, GPIO_ADDR_BASE)) {
956 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
957 		PM8001_INIT_DBG(pm8001_ha,
958 				pm8001_printk("Shift Bar4 to 0x%x failed\n",
959 				GPIO_ADDR_BASE));
960 		return -1;
961 	}
962 	regVal = pm8001_cr32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET);
963 	PM8001_INIT_DBG(pm8001_ha,
964 			pm8001_printk("GPIO Output Control Register:"
965 			" = 0x%x\n", regVal));
966 	/* set GPIO-0 output control to tri-state */
967 	regVal &= 0xFFFFFFFC;
968 	pm8001_cw32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET, regVal);
969 
970 	/* Step 6: Reset the IOP and AAP1 */
971 	/* map 0x00000 to BAR4(0x20), BAR2(win) */
972 	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
973 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
974 		PM8001_FAIL_DBG(pm8001_ha,
975 			pm8001_printk("SPC Shift Bar4 to 0x%x failed\n",
976 			SPC_TOP_LEVEL_ADDR_BASE));
977 		return -1;
978 	}
979 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
980 	PM8001_INIT_DBG(pm8001_ha,
981 		pm8001_printk("Top Register before resetting IOP/AAP1"
982 		":= 0x%x\n", regVal));
983 	regVal &= ~(SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
984 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
985 
986 	/* step 7: Reset the BDMA/OSSP */
987 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
988 	PM8001_INIT_DBG(pm8001_ha,
989 		pm8001_printk("Top Register before resetting BDMA/OSSP"
990 		": = 0x%x\n", regVal));
991 	regVal &= ~(SPC_REG_RESET_BDMA_CORE | SPC_REG_RESET_OSSP);
992 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
993 
994 	/* step 8: delay 10 usec */
995 	udelay(10);
996 
997 	/* step 9: bring the BDMA and OSSP out of reset */
998 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
999 	PM8001_INIT_DBG(pm8001_ha,
1000 		pm8001_printk("Top Register before bringing up BDMA/OSSP"
1001 		":= 0x%x\n", regVal));
1002 	regVal |= (SPC_REG_RESET_BDMA_CORE | SPC_REG_RESET_OSSP);
1003 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
1004 
1005 	/* step 10: delay 10 usec */
1006 	udelay(10);
1007 
1008 	/* step 11: reads and sets the GSM Configuration and Reset Register */
1009 	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
1010 	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
1011 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1012 		PM8001_FAIL_DBG(pm8001_ha,
1013 			pm8001_printk("SPC Shift Bar4 to 0x%x failed\n",
1014 			GSM_ADDR_BASE));
1015 		return -1;
1016 	}
1017 	PM8001_INIT_DBG(pm8001_ha,
1018 		pm8001_printk("GSM 0x0 (0x00007b88)-GSM Configuration and "
1019 		"Reset = 0x%x\n", pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
1020 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
1021 	/* Put those bits to high */
1022 	/* GSM XCBI offset = 0x70 0000
1023 	0x00 Bit 13 COM_SLV_SW_RSTB 1
1024 	0x00 Bit 12 QSSP_SW_RSTB 1
1025 	0x00 Bit 11 RAAE_SW_RSTB 1
1026 	0x00 Bit 9   RB_1_SW_RSTB 1
1027 	0x00 Bit 8   SM_SW_RSTB 1
1028 	*/
1029 	regVal |= (GSM_CONFIG_RESET_VALUE);
1030 	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
1031 	PM8001_INIT_DBG(pm8001_ha,
1032 		pm8001_printk("GSM (0x00004088 ==> 0x00007b88) - GSM"
1033 		" Configuration and Reset is set to = 0x%x\n",
1034 		pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
1035 
1036 	/* step 12: Restore GSM - Read Address Parity Check */
1037 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
1038 	/* just for debugging */
1039 	PM8001_INIT_DBG(pm8001_ha,
1040 		pm8001_printk("GSM 0x700038 - Read Address Parity Check Enable"
1041 		" = 0x%x\n", regVal));
1042 	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, regVal1);
1043 	PM8001_INIT_DBG(pm8001_ha,
1044 		pm8001_printk("GSM 0x700038 - Read Address Parity"
1045 		" Check Enable is set to = 0x%x\n",
1046 		pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK)));
1047 	/* Restore GSM - Write Address Parity Check */
1048 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
1049 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, regVal2);
1050 	PM8001_INIT_DBG(pm8001_ha,
1051 		pm8001_printk("GSM 0x700040 - Write Address Parity Check"
1052 		" Enable is set to = 0x%x\n",
1053 		pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK)));
1054 	/* Restore GSM - Write Data Parity Check */
1055 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
1056 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, regVal3);
1057 	PM8001_INIT_DBG(pm8001_ha,
1058 		pm8001_printk("GSM 0x700048 - Write Data Parity Check Enable"
1059 		"is set to = 0x%x\n",
1060 		pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK)));
1061 
1062 	/* step 13: bring the IOP and AAP1 out of reset */
1063 	/* map 0x00000 to BAR4(0x20), BAR2(win) */
1064 	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
1065 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1066 		PM8001_FAIL_DBG(pm8001_ha,
1067 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
1068 			SPC_TOP_LEVEL_ADDR_BASE));
1069 		return -1;
1070 	}
1071 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
1072 	regVal |= (SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
1073 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
1074 
1075 	/* step 14: delay 10 usec - Normal Mode */
1076 	udelay(10);
1077 	/* check Soft Reset Normal mode or Soft Reset HDA mode */
1078 	if (signature == SPC_SOFT_RESET_SIGNATURE) {
1079 		/* step 15 (Normal Mode): wait until scratch pad1 register
1080 		bit 2 toggled */
1081 		max_wait_count = 2 * 1000 * 1000;/* 2 sec */
1082 		do {
1083 			udelay(1);
1084 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1) &
1085 				SCRATCH_PAD1_RST;
1086 		} while ((regVal != toggleVal) && (--max_wait_count));
1087 
1088 		if (!max_wait_count) {
1089 			regVal = pm8001_cr32(pm8001_ha, 0,
1090 				MSGU_SCRATCH_PAD_1);
1091 			PM8001_FAIL_DBG(pm8001_ha,
1092 				pm8001_printk("TIMEOUT : ToggleVal 0x%x,"
1093 				"MSGU_SCRATCH_PAD1 = 0x%x\n",
1094 				toggleVal, regVal));
1095 			PM8001_FAIL_DBG(pm8001_ha,
1096 				pm8001_printk("SCRATCH_PAD0 value = 0x%x\n",
1097 				pm8001_cr32(pm8001_ha, 0,
1098 				MSGU_SCRATCH_PAD_0)));
1099 			PM8001_FAIL_DBG(pm8001_ha,
1100 				pm8001_printk("SCRATCH_PAD2 value = 0x%x\n",
1101 				pm8001_cr32(pm8001_ha, 0,
1102 				MSGU_SCRATCH_PAD_2)));
1103 			PM8001_FAIL_DBG(pm8001_ha,
1104 				pm8001_printk("SCRATCH_PAD3 value = 0x%x\n",
1105 				pm8001_cr32(pm8001_ha, 0,
1106 				MSGU_SCRATCH_PAD_3)));
1107 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1108 			return -1;
1109 		}
1110 
1111 		/* step 16 (Normal) - Clear ODMR and ODCR */
1112 		pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
1113 		pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);
1114 
1115 		/* step 17 (Normal Mode): wait for the FW and IOP to get
1116 		ready - 1 sec timeout */
1117 		/* Wait for the SPC Configuration Table to be ready */
1118 		if (check_fw_ready(pm8001_ha) == -1) {
1119 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
1120 			/* return error if MPI Configuration Table not ready */
1121 			PM8001_INIT_DBG(pm8001_ha,
1122 				pm8001_printk("FW not ready SCRATCH_PAD1"
1123 				" = 0x%x\n", regVal));
1124 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
1125 			/* return error if MPI Configuration Table not ready */
1126 			PM8001_INIT_DBG(pm8001_ha,
1127 				pm8001_printk("FW not ready SCRATCH_PAD2"
1128 				" = 0x%x\n", regVal));
1129 			PM8001_INIT_DBG(pm8001_ha,
1130 				pm8001_printk("SCRATCH_PAD0 value = 0x%x\n",
1131 				pm8001_cr32(pm8001_ha, 0,
1132 				MSGU_SCRATCH_PAD_0)));
1133 			PM8001_INIT_DBG(pm8001_ha,
1134 				pm8001_printk("SCRATCH_PAD3 value = 0x%x\n",
1135 				pm8001_cr32(pm8001_ha, 0,
1136 				MSGU_SCRATCH_PAD_3)));
1137 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1138 			return -1;
1139 		}
1140 	}
1141 	pm8001_bar4_shift(pm8001_ha, 0);
1142 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1143 
1144 	PM8001_INIT_DBG(pm8001_ha,
1145 		pm8001_printk("SPC soft reset Complete\n"));
1146 	return 0;
1147 }
1148 
1149 static void pm8001_hw_chip_rst(struct pm8001_hba_info *pm8001_ha)
1150 {
1151 	u32 i;
1152 	u32 regVal;
1153 	PM8001_INIT_DBG(pm8001_ha,
1154 		pm8001_printk("chip reset start\n"));
1155 
1156 	/* do SPC chip reset. */
1157 	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
1158 	regVal &= ~(SPC_REG_RESET_DEVICE);
1159 	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);
1160 
1161 	/* delay 10 usec */
1162 	udelay(10);
1163 
1164 	/* bring chip reset out of reset */
1165 	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
1166 	regVal |= SPC_REG_RESET_DEVICE;
1167 	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);
1168 
1169 	/* delay 10 usec */
1170 	udelay(10);
1171 
1172 	/* wait for 20 msec until the firmware gets reloaded */
1173 	i = 20;
1174 	do {
1175 		mdelay(1);
1176 	} while ((--i) != 0);
1177 
1178 	PM8001_INIT_DBG(pm8001_ha,
1179 		pm8001_printk("chip reset finished\n"));
1180 }
1181 
1182 /**
1183  * pm8001_chip_iounmap - which maped when initialized.
1184  * @pm8001_ha: our hba card information
1185  */
1186 void pm8001_chip_iounmap(struct pm8001_hba_info *pm8001_ha)
1187 {
1188 	s8 bar, logical = 0;
1189 	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
1190 		/*
1191 		** logical BARs for SPC:
1192 		** bar 0 and 1 - logical BAR0
1193 		** bar 2 and 3 - logical BAR1
1194 		** bar4 - logical BAR2
1195 		** bar5 - logical BAR3
1196 		** Skip the appropriate assignments:
1197 		*/
1198 		if ((bar == 1) || (bar == 3))
1199 			continue;
1200 		if (pm8001_ha->io_mem[logical].memvirtaddr) {
1201 			iounmap(pm8001_ha->io_mem[logical].memvirtaddr);
1202 			logical++;
1203 		}
1204 	}
1205 }
1206 
1207 #ifndef PM8001_USE_MSIX
1208 /**
1209  * pm8001_chip_interrupt_enable - enable PM8001 chip interrupt
1210  * @pm8001_ha: our hba card information
1211  */
1212 static void
1213 pm8001_chip_intx_interrupt_enable(struct pm8001_hba_info *pm8001_ha)
1214 {
1215 	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);
1216 	pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
1217 }
1218 
1219  /**
1220   * pm8001_chip_intx_interrupt_disable- disable PM8001 chip interrupt
1221   * @pm8001_ha: our hba card information
1222   */
1223 static void
1224 pm8001_chip_intx_interrupt_disable(struct pm8001_hba_info *pm8001_ha)
1225 {
1226 	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_MASK_ALL);
1227 }
1228 
1229 #else
1230 
1231 /**
1232  * pm8001_chip_msix_interrupt_enable - enable PM8001 chip interrupt
1233  * @pm8001_ha: our hba card information
1234  */
1235 static void
1236 pm8001_chip_msix_interrupt_enable(struct pm8001_hba_info *pm8001_ha,
1237 	u32 int_vec_idx)
1238 {
1239 	u32 msi_index;
1240 	u32 value;
1241 	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
1242 	msi_index += MSIX_TABLE_BASE;
1243 	pm8001_cw32(pm8001_ha, 0, msi_index, MSIX_INTERRUPT_ENABLE);
1244 	value = (1 << int_vec_idx);
1245 	pm8001_cw32(pm8001_ha, 0,  MSGU_ODCR, value);
1246 
1247 }
1248 
1249 /**
1250  * pm8001_chip_msix_interrupt_disable - disable PM8001 chip interrupt
1251  * @pm8001_ha: our hba card information
1252  */
1253 static void
1254 pm8001_chip_msix_interrupt_disable(struct pm8001_hba_info *pm8001_ha,
1255 	u32 int_vec_idx)
1256 {
1257 	u32 msi_index;
1258 	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
1259 	msi_index += MSIX_TABLE_BASE;
1260 	pm8001_cw32(pm8001_ha, 0,  msi_index, MSIX_INTERRUPT_DISABLE);
1261 }
1262 #endif
1263 
1264 /**
1265  * pm8001_chip_interrupt_enable - enable PM8001 chip interrupt
1266  * @pm8001_ha: our hba card information
1267  */
1268 static void
1269 pm8001_chip_interrupt_enable(struct pm8001_hba_info *pm8001_ha, u8 vec)
1270 {
1271 #ifdef PM8001_USE_MSIX
1272 	pm8001_chip_msix_interrupt_enable(pm8001_ha, 0);
1273 #else
1274 	pm8001_chip_intx_interrupt_enable(pm8001_ha);
1275 #endif
1276 }
1277 
1278 /**
1279  * pm8001_chip_intx_interrupt_disable- disable PM8001 chip interrupt
1280  * @pm8001_ha: our hba card information
1281  */
1282 static void
1283 pm8001_chip_interrupt_disable(struct pm8001_hba_info *pm8001_ha, u8 vec)
1284 {
1285 #ifdef PM8001_USE_MSIX
1286 	pm8001_chip_msix_interrupt_disable(pm8001_ha, 0);
1287 #else
1288 	pm8001_chip_intx_interrupt_disable(pm8001_ha);
1289 #endif
1290 }
1291 
1292 /**
1293  * pm8001_mpi_msg_free_get - get the free message buffer for transfer
1294  * inbound queue.
1295  * @circularQ: the inbound queue  we want to transfer to HBA.
1296  * @messageSize: the message size of this transfer, normally it is 64 bytes
1297  * @messagePtr: the pointer to message.
1298  */
1299 int pm8001_mpi_msg_free_get(struct inbound_queue_table *circularQ,
1300 			    u16 messageSize, void **messagePtr)
1301 {
1302 	u32 offset, consumer_index;
1303 	struct mpi_msg_hdr *msgHeader;
1304 	u8 bcCount = 1; /* only support single buffer */
1305 
1306 	/* Checks is the requested message size can be allocated in this queue*/
1307 	if (messageSize > IOMB_SIZE_SPCV) {
1308 		*messagePtr = NULL;
1309 		return -1;
1310 	}
1311 
1312 	/* Stores the new consumer index */
1313 	consumer_index = pm8001_read_32(circularQ->ci_virt);
1314 	circularQ->consumer_index = cpu_to_le32(consumer_index);
1315 	if (((circularQ->producer_idx + bcCount) % PM8001_MPI_QUEUE) ==
1316 		le32_to_cpu(circularQ->consumer_index)) {
1317 		*messagePtr = NULL;
1318 		return -1;
1319 	}
1320 	/* get memory IOMB buffer address */
1321 	offset = circularQ->producer_idx * messageSize;
1322 	/* increment to next bcCount element */
1323 	circularQ->producer_idx = (circularQ->producer_idx + bcCount)
1324 				% PM8001_MPI_QUEUE;
1325 	/* Adds that distance to the base of the region virtual address plus
1326 	the message header size*/
1327 	msgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt	+ offset);
1328 	*messagePtr = ((void *)msgHeader) + sizeof(struct mpi_msg_hdr);
1329 	return 0;
1330 }
1331 
1332 /**
1333  * pm8001_mpi_build_cmd- build the message queue for transfer, update the PI to
1334  * FW to tell the fw to get this message from IOMB.
1335  * @pm8001_ha: our hba card information
1336  * @circularQ: the inbound queue we want to transfer to HBA.
1337  * @opCode: the operation code represents commands which LLDD and fw recognized.
1338  * @payload: the command payload of each operation command.
1339  * @nb: size in bytes of the command payload
1340  * @responseQueue: queue to interrupt on w/ command response (if any)
1341  */
1342 int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
1343 			 struct inbound_queue_table *circularQ,
1344 			 u32 opCode, void *payload, size_t nb,
1345 			 u32 responseQueue)
1346 {
1347 	u32 Header = 0, hpriority = 0, bc = 1, category = 0x02;
1348 	void *pMessage;
1349 
1350 	if (pm8001_mpi_msg_free_get(circularQ, pm8001_ha->iomb_size,
1351 		&pMessage) < 0) {
1352 		PM8001_IO_DBG(pm8001_ha,
1353 			pm8001_printk("No free mpi buffer\n"));
1354 		return -ENOMEM;
1355 	}
1356 
1357 	if (nb > (pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr)))
1358 		nb = pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr);
1359 	memcpy(pMessage, payload, nb);
1360 	if (nb + sizeof(struct mpi_msg_hdr) < pm8001_ha->iomb_size)
1361 		memset(pMessage + nb, 0, pm8001_ha->iomb_size -
1362 				(nb + sizeof(struct mpi_msg_hdr)));
1363 
1364 	/*Build the header*/
1365 	Header = ((1 << 31) | (hpriority << 30) | ((bc & 0x1f) << 24)
1366 		| ((responseQueue & 0x3F) << 16)
1367 		| ((category & 0xF) << 12) | (opCode & 0xFFF));
1368 
1369 	pm8001_write_32((pMessage - 4), 0, cpu_to_le32(Header));
1370 	/*Update the PI to the firmware*/
1371 	pm8001_cw32(pm8001_ha, circularQ->pi_pci_bar,
1372 		circularQ->pi_offset, circularQ->producer_idx);
1373 	PM8001_DEVIO_DBG(pm8001_ha,
1374 		pm8001_printk("INB Q %x OPCODE:%x , UPDATED PI=%d CI=%d\n",
1375 			responseQueue, opCode, circularQ->producer_idx,
1376 			circularQ->consumer_index));
1377 	return 0;
1378 }
1379 
1380 u32 pm8001_mpi_msg_free_set(struct pm8001_hba_info *pm8001_ha, void *pMsg,
1381 			    struct outbound_queue_table *circularQ, u8 bc)
1382 {
1383 	u32 producer_index;
1384 	struct mpi_msg_hdr *msgHeader;
1385 	struct mpi_msg_hdr *pOutBoundMsgHeader;
1386 
1387 	msgHeader = (struct mpi_msg_hdr *)(pMsg - sizeof(struct mpi_msg_hdr));
1388 	pOutBoundMsgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt +
1389 				circularQ->consumer_idx * pm8001_ha->iomb_size);
1390 	if (pOutBoundMsgHeader != msgHeader) {
1391 		PM8001_FAIL_DBG(pm8001_ha,
1392 			pm8001_printk("consumer_idx = %d msgHeader = %p\n",
1393 			circularQ->consumer_idx, msgHeader));
1394 
1395 		/* Update the producer index from SPC */
1396 		producer_index = pm8001_read_32(circularQ->pi_virt);
1397 		circularQ->producer_index = cpu_to_le32(producer_index);
1398 		PM8001_FAIL_DBG(pm8001_ha,
1399 			pm8001_printk("consumer_idx = %d producer_index = %d"
1400 			"msgHeader = %p\n", circularQ->consumer_idx,
1401 			circularQ->producer_index, msgHeader));
1402 		return 0;
1403 	}
1404 	/* free the circular queue buffer elements associated with the message*/
1405 	circularQ->consumer_idx = (circularQ->consumer_idx + bc)
1406 				% PM8001_MPI_QUEUE;
1407 	/* update the CI of outbound queue */
1408 	pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar, circularQ->ci_offset,
1409 		circularQ->consumer_idx);
1410 	/* Update the producer index from SPC*/
1411 	producer_index = pm8001_read_32(circularQ->pi_virt);
1412 	circularQ->producer_index = cpu_to_le32(producer_index);
1413 	PM8001_IO_DBG(pm8001_ha,
1414 		pm8001_printk(" CI=%d PI=%d\n", circularQ->consumer_idx,
1415 		circularQ->producer_index));
1416 	return 0;
1417 }
1418 
1419 /**
1420  * pm8001_mpi_msg_consume- get the MPI message from outbound queue
1421  * message table.
1422  * @pm8001_ha: our hba card information
1423  * @circularQ: the outbound queue  table.
1424  * @messagePtr1: the message contents of this outbound message.
1425  * @pBC: the message size.
1426  */
1427 u32 pm8001_mpi_msg_consume(struct pm8001_hba_info *pm8001_ha,
1428 			   struct outbound_queue_table *circularQ,
1429 			   void **messagePtr1, u8 *pBC)
1430 {
1431 	struct mpi_msg_hdr	*msgHeader;
1432 	__le32	msgHeader_tmp;
1433 	u32 header_tmp;
1434 	do {
1435 		/* If there are not-yet-delivered messages ... */
1436 		if (le32_to_cpu(circularQ->producer_index)
1437 			!= circularQ->consumer_idx) {
1438 			/*Get the pointer to the circular queue buffer element*/
1439 			msgHeader = (struct mpi_msg_hdr *)
1440 				(circularQ->base_virt +
1441 				circularQ->consumer_idx * pm8001_ha->iomb_size);
1442 			/* read header */
1443 			header_tmp = pm8001_read_32(msgHeader);
1444 			msgHeader_tmp = cpu_to_le32(header_tmp);
1445 			PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
1446 				"outbound opcode msgheader:%x ci=%d pi=%d\n",
1447 				msgHeader_tmp, circularQ->consumer_idx,
1448 				circularQ->producer_index));
1449 			if (0 != (le32_to_cpu(msgHeader_tmp) & 0x80000000)) {
1450 				if (OPC_OUB_SKIP_ENTRY !=
1451 					(le32_to_cpu(msgHeader_tmp) & 0xfff)) {
1452 					*messagePtr1 =
1453 						((u8 *)msgHeader) +
1454 						sizeof(struct mpi_msg_hdr);
1455 					*pBC = (u8)((le32_to_cpu(msgHeader_tmp)
1456 						>> 24) & 0x1f);
1457 					PM8001_IO_DBG(pm8001_ha,
1458 						pm8001_printk(": CI=%d PI=%d "
1459 						"msgHeader=%x\n",
1460 						circularQ->consumer_idx,
1461 						circularQ->producer_index,
1462 						msgHeader_tmp));
1463 					return MPI_IO_STATUS_SUCCESS;
1464 				} else {
1465 					circularQ->consumer_idx =
1466 						(circularQ->consumer_idx +
1467 						((le32_to_cpu(msgHeader_tmp)
1468 						 >> 24) & 0x1f))
1469 							% PM8001_MPI_QUEUE;
1470 					msgHeader_tmp = 0;
1471 					pm8001_write_32(msgHeader, 0, 0);
1472 					/* update the CI of outbound queue */
1473 					pm8001_cw32(pm8001_ha,
1474 						circularQ->ci_pci_bar,
1475 						circularQ->ci_offset,
1476 						circularQ->consumer_idx);
1477 				}
1478 			} else {
1479 				circularQ->consumer_idx =
1480 					(circularQ->consumer_idx +
1481 					((le32_to_cpu(msgHeader_tmp) >> 24) &
1482 					0x1f)) % PM8001_MPI_QUEUE;
1483 				msgHeader_tmp = 0;
1484 				pm8001_write_32(msgHeader, 0, 0);
1485 				/* update the CI of outbound queue */
1486 				pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar,
1487 					circularQ->ci_offset,
1488 					circularQ->consumer_idx);
1489 				return MPI_IO_STATUS_FAIL;
1490 			}
1491 		} else {
1492 			u32 producer_index;
1493 			void *pi_virt = circularQ->pi_virt;
1494 			/* spurious interrupt during setup if
1495 			 * kexec-ing and driver doing a doorbell access
1496 			 * with the pre-kexec oq interrupt setup
1497 			 */
1498 			if (!pi_virt)
1499 				break;
1500 			/* Update the producer index from SPC */
1501 			producer_index = pm8001_read_32(pi_virt);
1502 			circularQ->producer_index = cpu_to_le32(producer_index);
1503 		}
1504 	} while (le32_to_cpu(circularQ->producer_index) !=
1505 		circularQ->consumer_idx);
1506 	/* while we don't have any more not-yet-delivered message */
1507 	/* report empty */
1508 	return MPI_IO_STATUS_BUSY;
1509 }
1510 
1511 void pm8001_work_fn(struct work_struct *work)
1512 {
1513 	struct pm8001_work *pw = container_of(work, struct pm8001_work, work);
1514 	struct pm8001_device *pm8001_dev;
1515 	struct domain_device *dev;
1516 
1517 	/*
1518 	 * So far, all users of this stash an associated structure here.
1519 	 * If we get here, and this pointer is null, then the action
1520 	 * was cancelled. This nullification happens when the device
1521 	 * goes away.
1522 	 */
1523 	pm8001_dev = pw->data; /* Most stash device structure */
1524 	if ((pm8001_dev == NULL)
1525 	 || ((pw->handler != IO_XFER_ERROR_BREAK)
1526 	  && (pm8001_dev->dev_type == SAS_PHY_UNUSED))) {
1527 		kfree(pw);
1528 		return;
1529 	}
1530 
1531 	switch (pw->handler) {
1532 	case IO_XFER_ERROR_BREAK:
1533 	{	/* This one stashes the sas_task instead */
1534 		struct sas_task *t = (struct sas_task *)pm8001_dev;
1535 		u32 tag;
1536 		struct pm8001_ccb_info *ccb;
1537 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1538 		unsigned long flags, flags1;
1539 		struct task_status_struct *ts;
1540 		int i;
1541 
1542 		if (pm8001_query_task(t) == TMF_RESP_FUNC_SUCC)
1543 			break; /* Task still on lu */
1544 		spin_lock_irqsave(&pm8001_ha->lock, flags);
1545 
1546 		spin_lock_irqsave(&t->task_state_lock, flags1);
1547 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
1548 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1549 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1550 			break; /* Task got completed by another */
1551 		}
1552 		spin_unlock_irqrestore(&t->task_state_lock, flags1);
1553 
1554 		/* Search for a possible ccb that matches the task */
1555 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1556 			ccb = &pm8001_ha->ccb_info[i];
1557 			tag = ccb->ccb_tag;
1558 			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
1559 				break;
1560 		}
1561 		if (!ccb) {
1562 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1563 			break; /* Task got freed by another */
1564 		}
1565 		ts = &t->task_status;
1566 		ts->resp = SAS_TASK_COMPLETE;
1567 		/* Force the midlayer to retry */
1568 		ts->stat = SAS_QUEUE_FULL;
1569 		pm8001_dev = ccb->device;
1570 		if (pm8001_dev)
1571 			pm8001_dev->running_req--;
1572 		spin_lock_irqsave(&t->task_state_lock, flags1);
1573 		t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
1574 		t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
1575 		t->task_state_flags |= SAS_TASK_STATE_DONE;
1576 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
1577 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1578 			PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p"
1579 				" done with event 0x%x resp 0x%x stat 0x%x but"
1580 				" aborted by upper layer!\n",
1581 				t, pw->handler, ts->resp, ts->stat));
1582 			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
1583 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1584 		} else {
1585 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1586 			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
1587 			mb();/* in order to force CPU ordering */
1588 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1589 			t->task_done(t);
1590 		}
1591 	}	break;
1592 	case IO_XFER_OPEN_RETRY_TIMEOUT:
1593 	{	/* This one stashes the sas_task instead */
1594 		struct sas_task *t = (struct sas_task *)pm8001_dev;
1595 		u32 tag;
1596 		struct pm8001_ccb_info *ccb;
1597 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1598 		unsigned long flags, flags1;
1599 		int i, ret = 0;
1600 
1601 		PM8001_IO_DBG(pm8001_ha,
1602 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
1603 
1604 		ret = pm8001_query_task(t);
1605 
1606 		PM8001_IO_DBG(pm8001_ha,
1607 			switch (ret) {
1608 			case TMF_RESP_FUNC_SUCC:
1609 				pm8001_printk("...Task on lu\n");
1610 				break;
1611 
1612 			case TMF_RESP_FUNC_COMPLETE:
1613 				pm8001_printk("...Task NOT on lu\n");
1614 				break;
1615 
1616 			default:
1617 				PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
1618 					"...query task failed!!!\n"));
1619 				break;
1620 			});
1621 
1622 		spin_lock_irqsave(&pm8001_ha->lock, flags);
1623 
1624 		spin_lock_irqsave(&t->task_state_lock, flags1);
1625 
1626 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
1627 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1628 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1629 			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
1630 				(void)pm8001_abort_task(t);
1631 			break; /* Task got completed by another */
1632 		}
1633 
1634 		spin_unlock_irqrestore(&t->task_state_lock, flags1);
1635 
1636 		/* Search for a possible ccb that matches the task */
1637 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1638 			ccb = &pm8001_ha->ccb_info[i];
1639 			tag = ccb->ccb_tag;
1640 			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
1641 				break;
1642 		}
1643 		if (!ccb) {
1644 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1645 			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
1646 				(void)pm8001_abort_task(t);
1647 			break; /* Task got freed by another */
1648 		}
1649 
1650 		pm8001_dev = ccb->device;
1651 		dev = pm8001_dev->sas_device;
1652 
1653 		switch (ret) {
1654 		case TMF_RESP_FUNC_SUCC: /* task on lu */
1655 			ccb->open_retry = 1; /* Snub completion */
1656 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1657 			ret = pm8001_abort_task(t);
1658 			ccb->open_retry = 0;
1659 			switch (ret) {
1660 			case TMF_RESP_FUNC_SUCC:
1661 			case TMF_RESP_FUNC_COMPLETE:
1662 				break;
1663 			default: /* device misbehavior */
1664 				ret = TMF_RESP_FUNC_FAILED;
1665 				PM8001_IO_DBG(pm8001_ha,
1666 					pm8001_printk("...Reset phy\n"));
1667 				pm8001_I_T_nexus_reset(dev);
1668 				break;
1669 			}
1670 			break;
1671 
1672 		case TMF_RESP_FUNC_COMPLETE: /* task not on lu */
1673 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1674 			/* Do we need to abort the task locally? */
1675 			break;
1676 
1677 		default: /* device misbehavior */
1678 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1679 			ret = TMF_RESP_FUNC_FAILED;
1680 			PM8001_IO_DBG(pm8001_ha,
1681 				pm8001_printk("...Reset phy\n"));
1682 			pm8001_I_T_nexus_reset(dev);
1683 		}
1684 
1685 		if (ret == TMF_RESP_FUNC_FAILED)
1686 			t = NULL;
1687 		pm8001_open_reject_retry(pm8001_ha, t, pm8001_dev);
1688 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("...Complete\n"));
1689 	}	break;
1690 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
1691 		dev = pm8001_dev->sas_device;
1692 		pm8001_I_T_nexus_event_handler(dev);
1693 		break;
1694 	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
1695 		dev = pm8001_dev->sas_device;
1696 		pm8001_I_T_nexus_reset(dev);
1697 		break;
1698 	case IO_DS_IN_ERROR:
1699 		dev = pm8001_dev->sas_device;
1700 		pm8001_I_T_nexus_reset(dev);
1701 		break;
1702 	case IO_DS_NON_OPERATIONAL:
1703 		dev = pm8001_dev->sas_device;
1704 		pm8001_I_T_nexus_reset(dev);
1705 		break;
1706 	}
1707 	kfree(pw);
1708 }
1709 
1710 int pm8001_handle_event(struct pm8001_hba_info *pm8001_ha, void *data,
1711 			       int handler)
1712 {
1713 	struct pm8001_work *pw;
1714 	int ret = 0;
1715 
1716 	pw = kmalloc(sizeof(struct pm8001_work), GFP_ATOMIC);
1717 	if (pw) {
1718 		pw->pm8001_ha = pm8001_ha;
1719 		pw->data = data;
1720 		pw->handler = handler;
1721 		INIT_WORK(&pw->work, pm8001_work_fn);
1722 		queue_work(pm8001_wq, &pw->work);
1723 	} else
1724 		ret = -ENOMEM;
1725 
1726 	return ret;
1727 }
1728 
1729 static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
1730 		struct pm8001_device *pm8001_ha_dev)
1731 {
1732 	int res;
1733 	u32 ccb_tag;
1734 	struct pm8001_ccb_info *ccb;
1735 	struct sas_task *task = NULL;
1736 	struct task_abort_req task_abort;
1737 	struct inbound_queue_table *circularQ;
1738 	u32 opc = OPC_INB_SATA_ABORT;
1739 	int ret;
1740 
1741 	if (!pm8001_ha_dev) {
1742 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("dev is null\n"));
1743 		return;
1744 	}
1745 
1746 	task = sas_alloc_slow_task(GFP_ATOMIC);
1747 
1748 	if (!task) {
1749 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("cannot "
1750 						"allocate task\n"));
1751 		return;
1752 	}
1753 
1754 	task->task_done = pm8001_task_done;
1755 
1756 	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
1757 	if (res)
1758 		return;
1759 
1760 	ccb = &pm8001_ha->ccb_info[ccb_tag];
1761 	ccb->device = pm8001_ha_dev;
1762 	ccb->ccb_tag = ccb_tag;
1763 	ccb->task = task;
1764 
1765 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
1766 
1767 	memset(&task_abort, 0, sizeof(task_abort));
1768 	task_abort.abort_all = cpu_to_le32(1);
1769 	task_abort.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
1770 	task_abort.tag = cpu_to_le32(ccb_tag);
1771 
1772 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
1773 			sizeof(task_abort), 0);
1774 	if (ret)
1775 		pm8001_tag_free(pm8001_ha, ccb_tag);
1776 
1777 }
1778 
1779 static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
1780 		struct pm8001_device *pm8001_ha_dev)
1781 {
1782 	struct sata_start_req sata_cmd;
1783 	int res;
1784 	u32 ccb_tag;
1785 	struct pm8001_ccb_info *ccb;
1786 	struct sas_task *task = NULL;
1787 	struct host_to_dev_fis fis;
1788 	struct domain_device *dev;
1789 	struct inbound_queue_table *circularQ;
1790 	u32 opc = OPC_INB_SATA_HOST_OPSTART;
1791 
1792 	task = sas_alloc_slow_task(GFP_ATOMIC);
1793 
1794 	if (!task) {
1795 		PM8001_FAIL_DBG(pm8001_ha,
1796 			pm8001_printk("cannot allocate task !!!\n"));
1797 		return;
1798 	}
1799 	task->task_done = pm8001_task_done;
1800 
1801 	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
1802 	if (res) {
1803 		sas_free_task(task);
1804 		PM8001_FAIL_DBG(pm8001_ha,
1805 			pm8001_printk("cannot allocate tag !!!\n"));
1806 		return;
1807 	}
1808 
1809 	/* allocate domain device by ourselves as libsas
1810 	 * is not going to provide any
1811 	*/
1812 	dev = kzalloc(sizeof(struct domain_device), GFP_ATOMIC);
1813 	if (!dev) {
1814 		sas_free_task(task);
1815 		pm8001_tag_free(pm8001_ha, ccb_tag);
1816 		PM8001_FAIL_DBG(pm8001_ha,
1817 			pm8001_printk("Domain device cannot be allocated\n"));
1818 		return;
1819 	}
1820 	task->dev = dev;
1821 	task->dev->lldd_dev = pm8001_ha_dev;
1822 
1823 	ccb = &pm8001_ha->ccb_info[ccb_tag];
1824 	ccb->device = pm8001_ha_dev;
1825 	ccb->ccb_tag = ccb_tag;
1826 	ccb->task = task;
1827 	pm8001_ha_dev->id |= NCQ_READ_LOG_FLAG;
1828 	pm8001_ha_dev->id |= NCQ_2ND_RLE_FLAG;
1829 
1830 	memset(&sata_cmd, 0, sizeof(sata_cmd));
1831 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
1832 
1833 	/* construct read log FIS */
1834 	memset(&fis, 0, sizeof(struct host_to_dev_fis));
1835 	fis.fis_type = 0x27;
1836 	fis.flags = 0x80;
1837 	fis.command = ATA_CMD_READ_LOG_EXT;
1838 	fis.lbal = 0x10;
1839 	fis.sector_count = 0x1;
1840 
1841 	sata_cmd.tag = cpu_to_le32(ccb_tag);
1842 	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
1843 	sata_cmd.ncqtag_atap_dir_m |= ((0x1 << 7) | (0x5 << 9));
1844 	memcpy(&sata_cmd.sata_fis, &fis, sizeof(struct host_to_dev_fis));
1845 
1846 	res = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
1847 			sizeof(sata_cmd), 0);
1848 	if (res) {
1849 		sas_free_task(task);
1850 		pm8001_tag_free(pm8001_ha, ccb_tag);
1851 		kfree(dev);
1852 	}
1853 }
1854 
1855 /**
1856  * mpi_ssp_completion- process the event that FW response to the SSP request.
1857  * @pm8001_ha: our hba card information
1858  * @piomb: the message contents of this outbound message.
1859  *
1860  * When FW has completed a ssp request for example a IO request, after it has
1861  * filled the SG data with the data, it will trigger this event represent
1862  * that he has finished the job,please check the coresponding buffer.
1863  * So we will tell the caller who maybe waiting the result to tell upper layer
1864  * that the task has been finished.
1865  */
1866 static void
1867 mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
1868 {
1869 	struct sas_task *t;
1870 	struct pm8001_ccb_info *ccb;
1871 	unsigned long flags;
1872 	u32 status;
1873 	u32 param;
1874 	u32 tag;
1875 	struct ssp_completion_resp *psspPayload;
1876 	struct task_status_struct *ts;
1877 	struct ssp_response_iu *iu;
1878 	struct pm8001_device *pm8001_dev;
1879 	psspPayload = (struct ssp_completion_resp *)(piomb + 4);
1880 	status = le32_to_cpu(psspPayload->status);
1881 	tag = le32_to_cpu(psspPayload->tag);
1882 	ccb = &pm8001_ha->ccb_info[tag];
1883 	if ((status == IO_ABORTED) && ccb->open_retry) {
1884 		/* Being completed by another */
1885 		ccb->open_retry = 0;
1886 		return;
1887 	}
1888 	pm8001_dev = ccb->device;
1889 	param = le32_to_cpu(psspPayload->param);
1890 
1891 	t = ccb->task;
1892 
1893 	if (status && status != IO_UNDERFLOW)
1894 		PM8001_FAIL_DBG(pm8001_ha,
1895 			pm8001_printk("sas IO status 0x%x\n", status));
1896 	if (unlikely(!t || !t->lldd_task || !t->dev))
1897 		return;
1898 	ts = &t->task_status;
1899 	/* Print sas address of IO failed device */
1900 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
1901 		(status != IO_UNDERFLOW))
1902 		PM8001_FAIL_DBG(pm8001_ha,
1903 			pm8001_printk("SAS Address of IO Failure Drive:"
1904 			"%016llx", SAS_ADDR(t->dev->sas_addr)));
1905 
1906 	if (status)
1907 		PM8001_IOERR_DBG(pm8001_ha, pm8001_printk(
1908 			"status:0x%x, tag:0x%x, task:0x%p\n",
1909 			status, tag, t));
1910 
1911 	switch (status) {
1912 	case IO_SUCCESS:
1913 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS"
1914 			",param = %d\n", param));
1915 		if (param == 0) {
1916 			ts->resp = SAS_TASK_COMPLETE;
1917 			ts->stat = SAM_STAT_GOOD;
1918 		} else {
1919 			ts->resp = SAS_TASK_COMPLETE;
1920 			ts->stat = SAS_PROTO_RESPONSE;
1921 			ts->residual = param;
1922 			iu = &psspPayload->ssp_resp_iu;
1923 			sas_ssp_task_response(pm8001_ha->dev, t, iu);
1924 		}
1925 		if (pm8001_dev)
1926 			pm8001_dev->running_req--;
1927 		break;
1928 	case IO_ABORTED:
1929 		PM8001_IO_DBG(pm8001_ha,
1930 			pm8001_printk("IO_ABORTED IOMB Tag\n"));
1931 		ts->resp = SAS_TASK_COMPLETE;
1932 		ts->stat = SAS_ABORTED_TASK;
1933 		break;
1934 	case IO_UNDERFLOW:
1935 		/* SSP Completion with error */
1936 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW"
1937 			",param = %d\n", param));
1938 		ts->resp = SAS_TASK_COMPLETE;
1939 		ts->stat = SAS_DATA_UNDERRUN;
1940 		ts->residual = param;
1941 		if (pm8001_dev)
1942 			pm8001_dev->running_req--;
1943 		break;
1944 	case IO_NO_DEVICE:
1945 		PM8001_IO_DBG(pm8001_ha,
1946 			pm8001_printk("IO_NO_DEVICE\n"));
1947 		ts->resp = SAS_TASK_UNDELIVERED;
1948 		ts->stat = SAS_PHY_DOWN;
1949 		break;
1950 	case IO_XFER_ERROR_BREAK:
1951 		PM8001_IO_DBG(pm8001_ha,
1952 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
1953 		ts->resp = SAS_TASK_COMPLETE;
1954 		ts->stat = SAS_OPEN_REJECT;
1955 		/* Force the midlayer to retry */
1956 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1957 		break;
1958 	case IO_XFER_ERROR_PHY_NOT_READY:
1959 		PM8001_IO_DBG(pm8001_ha,
1960 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
1961 		ts->resp = SAS_TASK_COMPLETE;
1962 		ts->stat = SAS_OPEN_REJECT;
1963 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1964 		break;
1965 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
1966 		PM8001_IO_DBG(pm8001_ha,
1967 		pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n"));
1968 		ts->resp = SAS_TASK_COMPLETE;
1969 		ts->stat = SAS_OPEN_REJECT;
1970 		ts->open_rej_reason = SAS_OREJ_EPROTO;
1971 		break;
1972 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
1973 		PM8001_IO_DBG(pm8001_ha,
1974 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
1975 		ts->resp = SAS_TASK_COMPLETE;
1976 		ts->stat = SAS_OPEN_REJECT;
1977 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1978 		break;
1979 	case IO_OPEN_CNX_ERROR_BREAK:
1980 		PM8001_IO_DBG(pm8001_ha,
1981 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
1982 		ts->resp = SAS_TASK_COMPLETE;
1983 		ts->stat = SAS_OPEN_REJECT;
1984 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1985 		break;
1986 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
1987 		PM8001_IO_DBG(pm8001_ha,
1988 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
1989 		ts->resp = SAS_TASK_COMPLETE;
1990 		ts->stat = SAS_OPEN_REJECT;
1991 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1992 		if (!t->uldd_task)
1993 			pm8001_handle_event(pm8001_ha,
1994 				pm8001_dev,
1995 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
1996 		break;
1997 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
1998 		PM8001_IO_DBG(pm8001_ha,
1999 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
2000 		ts->resp = SAS_TASK_COMPLETE;
2001 		ts->stat = SAS_OPEN_REJECT;
2002 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2003 		break;
2004 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2005 		PM8001_IO_DBG(pm8001_ha,
2006 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2007 			"NOT_SUPPORTED\n"));
2008 		ts->resp = SAS_TASK_COMPLETE;
2009 		ts->stat = SAS_OPEN_REJECT;
2010 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2011 		break;
2012 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2013 		PM8001_IO_DBG(pm8001_ha,
2014 			pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2015 		ts->resp = SAS_TASK_UNDELIVERED;
2016 		ts->stat = SAS_OPEN_REJECT;
2017 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2018 		break;
2019 	case IO_XFER_ERROR_NAK_RECEIVED:
2020 		PM8001_IO_DBG(pm8001_ha,
2021 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2022 		ts->resp = SAS_TASK_COMPLETE;
2023 		ts->stat = SAS_OPEN_REJECT;
2024 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2025 		break;
2026 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2027 		PM8001_IO_DBG(pm8001_ha,
2028 			pm8001_printk("IO_XFER_ERROR_ACK_NAK_TIMEOUT\n"));
2029 		ts->resp = SAS_TASK_COMPLETE;
2030 		ts->stat = SAS_NAK_R_ERR;
2031 		break;
2032 	case IO_XFER_ERROR_DMA:
2033 		PM8001_IO_DBG(pm8001_ha,
2034 		pm8001_printk("IO_XFER_ERROR_DMA\n"));
2035 		ts->resp = SAS_TASK_COMPLETE;
2036 		ts->stat = SAS_OPEN_REJECT;
2037 		break;
2038 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2039 		PM8001_IO_DBG(pm8001_ha,
2040 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2041 		ts->resp = SAS_TASK_COMPLETE;
2042 		ts->stat = SAS_OPEN_REJECT;
2043 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2044 		break;
2045 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2046 		PM8001_IO_DBG(pm8001_ha,
2047 			pm8001_printk("IO_XFER_ERROR_OFFSET_MISMATCH\n"));
2048 		ts->resp = SAS_TASK_COMPLETE;
2049 		ts->stat = SAS_OPEN_REJECT;
2050 		break;
2051 	case IO_PORT_IN_RESET:
2052 		PM8001_IO_DBG(pm8001_ha,
2053 			pm8001_printk("IO_PORT_IN_RESET\n"));
2054 		ts->resp = SAS_TASK_COMPLETE;
2055 		ts->stat = SAS_OPEN_REJECT;
2056 		break;
2057 	case IO_DS_NON_OPERATIONAL:
2058 		PM8001_IO_DBG(pm8001_ha,
2059 			pm8001_printk("IO_DS_NON_OPERATIONAL\n"));
2060 		ts->resp = SAS_TASK_COMPLETE;
2061 		ts->stat = SAS_OPEN_REJECT;
2062 		if (!t->uldd_task)
2063 			pm8001_handle_event(pm8001_ha,
2064 				pm8001_dev,
2065 				IO_DS_NON_OPERATIONAL);
2066 		break;
2067 	case IO_DS_IN_RECOVERY:
2068 		PM8001_IO_DBG(pm8001_ha,
2069 			pm8001_printk("IO_DS_IN_RECOVERY\n"));
2070 		ts->resp = SAS_TASK_COMPLETE;
2071 		ts->stat = SAS_OPEN_REJECT;
2072 		break;
2073 	case IO_TM_TAG_NOT_FOUND:
2074 		PM8001_IO_DBG(pm8001_ha,
2075 			pm8001_printk("IO_TM_TAG_NOT_FOUND\n"));
2076 		ts->resp = SAS_TASK_COMPLETE;
2077 		ts->stat = SAS_OPEN_REJECT;
2078 		break;
2079 	case IO_SSP_EXT_IU_ZERO_LEN_ERROR:
2080 		PM8001_IO_DBG(pm8001_ha,
2081 			pm8001_printk("IO_SSP_EXT_IU_ZERO_LEN_ERROR\n"));
2082 		ts->resp = SAS_TASK_COMPLETE;
2083 		ts->stat = SAS_OPEN_REJECT;
2084 		break;
2085 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2086 		PM8001_IO_DBG(pm8001_ha,
2087 			pm8001_printk("IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n"));
2088 		ts->resp = SAS_TASK_COMPLETE;
2089 		ts->stat = SAS_OPEN_REJECT;
2090 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2091 		break;
2092 	default:
2093 		PM8001_DEVIO_DBG(pm8001_ha,
2094 			pm8001_printk("Unknown status 0x%x\n", status));
2095 		/* not allowed case. Therefore, return failed status */
2096 		ts->resp = SAS_TASK_COMPLETE;
2097 		ts->stat = SAS_OPEN_REJECT;
2098 		break;
2099 	}
2100 	PM8001_IO_DBG(pm8001_ha,
2101 		pm8001_printk("scsi_status = %x\n ",
2102 		psspPayload->ssp_resp_iu.status));
2103 	spin_lock_irqsave(&t->task_state_lock, flags);
2104 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2105 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2106 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2107 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2108 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2109 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p done with"
2110 			" io_status 0x%x resp 0x%x "
2111 			"stat 0x%x but aborted by upper layer!\n",
2112 			t, status, ts->resp, ts->stat));
2113 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2114 	} else {
2115 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2116 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2117 		mb();/* in order to force CPU ordering */
2118 		t->task_done(t);
2119 	}
2120 }
2121 
2122 /*See the comments for mpi_ssp_completion */
2123 static void mpi_ssp_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
2124 {
2125 	struct sas_task *t;
2126 	unsigned long flags;
2127 	struct task_status_struct *ts;
2128 	struct pm8001_ccb_info *ccb;
2129 	struct pm8001_device *pm8001_dev;
2130 	struct ssp_event_resp *psspPayload =
2131 		(struct ssp_event_resp *)(piomb + 4);
2132 	u32 event = le32_to_cpu(psspPayload->event);
2133 	u32 tag = le32_to_cpu(psspPayload->tag);
2134 	u32 port_id = le32_to_cpu(psspPayload->port_id);
2135 	u32 dev_id = le32_to_cpu(psspPayload->device_id);
2136 
2137 	ccb = &pm8001_ha->ccb_info[tag];
2138 	t = ccb->task;
2139 	pm8001_dev = ccb->device;
2140 	if (event)
2141 		PM8001_FAIL_DBG(pm8001_ha,
2142 			pm8001_printk("sas IO status 0x%x\n", event));
2143 	if (unlikely(!t || !t->lldd_task || !t->dev))
2144 		return;
2145 	ts = &t->task_status;
2146 	PM8001_DEVIO_DBG(pm8001_ha,
2147 		pm8001_printk("port_id = %x,device_id = %x\n",
2148 		port_id, dev_id));
2149 	switch (event) {
2150 	case IO_OVERFLOW:
2151 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW\n");)
2152 		ts->resp = SAS_TASK_COMPLETE;
2153 		ts->stat = SAS_DATA_OVERRUN;
2154 		ts->residual = 0;
2155 		if (pm8001_dev)
2156 			pm8001_dev->running_req--;
2157 		break;
2158 	case IO_XFER_ERROR_BREAK:
2159 		PM8001_IO_DBG(pm8001_ha,
2160 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
2161 		pm8001_handle_event(pm8001_ha, t, IO_XFER_ERROR_BREAK);
2162 		return;
2163 	case IO_XFER_ERROR_PHY_NOT_READY:
2164 		PM8001_IO_DBG(pm8001_ha,
2165 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
2166 		ts->resp = SAS_TASK_COMPLETE;
2167 		ts->stat = SAS_OPEN_REJECT;
2168 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2169 		break;
2170 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2171 		PM8001_IO_DBG(pm8001_ha,
2172 			pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT"
2173 			"_SUPPORTED\n"));
2174 		ts->resp = SAS_TASK_COMPLETE;
2175 		ts->stat = SAS_OPEN_REJECT;
2176 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2177 		break;
2178 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2179 		PM8001_IO_DBG(pm8001_ha,
2180 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
2181 		ts->resp = SAS_TASK_COMPLETE;
2182 		ts->stat = SAS_OPEN_REJECT;
2183 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2184 		break;
2185 	case IO_OPEN_CNX_ERROR_BREAK:
2186 		PM8001_IO_DBG(pm8001_ha,
2187 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
2188 		ts->resp = SAS_TASK_COMPLETE;
2189 		ts->stat = SAS_OPEN_REJECT;
2190 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2191 		break;
2192 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2193 		PM8001_IO_DBG(pm8001_ha,
2194 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
2195 		ts->resp = SAS_TASK_COMPLETE;
2196 		ts->stat = SAS_OPEN_REJECT;
2197 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2198 		if (!t->uldd_task)
2199 			pm8001_handle_event(pm8001_ha,
2200 				pm8001_dev,
2201 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2202 		break;
2203 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2204 		PM8001_IO_DBG(pm8001_ha,
2205 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
2206 		ts->resp = SAS_TASK_COMPLETE;
2207 		ts->stat = SAS_OPEN_REJECT;
2208 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2209 		break;
2210 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2211 		PM8001_IO_DBG(pm8001_ha,
2212 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2213 			"NOT_SUPPORTED\n"));
2214 		ts->resp = SAS_TASK_COMPLETE;
2215 		ts->stat = SAS_OPEN_REJECT;
2216 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2217 		break;
2218 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2219 		PM8001_IO_DBG(pm8001_ha,
2220 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2221 		ts->resp = SAS_TASK_COMPLETE;
2222 		ts->stat = SAS_OPEN_REJECT;
2223 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2224 		break;
2225 	case IO_XFER_ERROR_NAK_RECEIVED:
2226 		PM8001_IO_DBG(pm8001_ha,
2227 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2228 		ts->resp = SAS_TASK_COMPLETE;
2229 		ts->stat = SAS_OPEN_REJECT;
2230 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2231 		break;
2232 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2233 		PM8001_IO_DBG(pm8001_ha,
2234 			pm8001_printk("IO_XFER_ERROR_ACK_NAK_TIMEOUT\n"));
2235 		ts->resp = SAS_TASK_COMPLETE;
2236 		ts->stat = SAS_NAK_R_ERR;
2237 		break;
2238 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2239 		PM8001_IO_DBG(pm8001_ha,
2240 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2241 		pm8001_handle_event(pm8001_ha, t, IO_XFER_OPEN_RETRY_TIMEOUT);
2242 		return;
2243 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2244 		PM8001_IO_DBG(pm8001_ha,
2245 			pm8001_printk("IO_XFER_ERROR_UNEXPECTED_PHASE\n"));
2246 		ts->resp = SAS_TASK_COMPLETE;
2247 		ts->stat = SAS_DATA_OVERRUN;
2248 		break;
2249 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2250 		PM8001_IO_DBG(pm8001_ha,
2251 			pm8001_printk("IO_XFER_ERROR_XFER_RDY_OVERRUN\n"));
2252 		ts->resp = SAS_TASK_COMPLETE;
2253 		ts->stat = SAS_DATA_OVERRUN;
2254 		break;
2255 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2256 		PM8001_IO_DBG(pm8001_ha,
2257 		       pm8001_printk("IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n"));
2258 		ts->resp = SAS_TASK_COMPLETE;
2259 		ts->stat = SAS_DATA_OVERRUN;
2260 		break;
2261 	case IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT:
2262 		PM8001_IO_DBG(pm8001_ha,
2263 		pm8001_printk("IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT\n"));
2264 		ts->resp = SAS_TASK_COMPLETE;
2265 		ts->stat = SAS_DATA_OVERRUN;
2266 		break;
2267 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2268 		PM8001_IO_DBG(pm8001_ha,
2269 			pm8001_printk("IO_XFER_ERROR_OFFSET_MISMATCH\n"));
2270 		ts->resp = SAS_TASK_COMPLETE;
2271 		ts->stat = SAS_DATA_OVERRUN;
2272 		break;
2273 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2274 		PM8001_IO_DBG(pm8001_ha,
2275 			pm8001_printk("IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n"));
2276 		ts->resp = SAS_TASK_COMPLETE;
2277 		ts->stat = SAS_DATA_OVERRUN;
2278 		break;
2279 	case IO_XFER_CMD_FRAME_ISSUED:
2280 		PM8001_IO_DBG(pm8001_ha,
2281 			pm8001_printk("  IO_XFER_CMD_FRAME_ISSUED\n"));
2282 		return;
2283 	default:
2284 		PM8001_DEVIO_DBG(pm8001_ha,
2285 			pm8001_printk("Unknown status 0x%x\n", event));
2286 		/* not allowed case. Therefore, return failed status */
2287 		ts->resp = SAS_TASK_COMPLETE;
2288 		ts->stat = SAS_DATA_OVERRUN;
2289 		break;
2290 	}
2291 	spin_lock_irqsave(&t->task_state_lock, flags);
2292 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2293 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2294 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2295 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2296 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2297 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p done with"
2298 			" event 0x%x resp 0x%x "
2299 			"stat 0x%x but aborted by upper layer!\n",
2300 			t, event, ts->resp, ts->stat));
2301 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2302 	} else {
2303 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2304 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2305 		mb();/* in order to force CPU ordering */
2306 		t->task_done(t);
2307 	}
2308 }
2309 
2310 /*See the comments for mpi_ssp_completion */
2311 static void
2312 mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2313 {
2314 	struct sas_task *t;
2315 	struct pm8001_ccb_info *ccb;
2316 	u32 param;
2317 	u32 status;
2318 	u32 tag;
2319 	int i, j;
2320 	u8 sata_addr_low[4];
2321 	u32 temp_sata_addr_low;
2322 	u8 sata_addr_hi[4];
2323 	u32 temp_sata_addr_hi;
2324 	struct sata_completion_resp *psataPayload;
2325 	struct task_status_struct *ts;
2326 	struct ata_task_resp *resp ;
2327 	u32 *sata_resp;
2328 	struct pm8001_device *pm8001_dev;
2329 	unsigned long flags;
2330 
2331 	psataPayload = (struct sata_completion_resp *)(piomb + 4);
2332 	status = le32_to_cpu(psataPayload->status);
2333 	tag = le32_to_cpu(psataPayload->tag);
2334 
2335 	if (!tag) {
2336 		PM8001_FAIL_DBG(pm8001_ha,
2337 			pm8001_printk("tag null\n"));
2338 		return;
2339 	}
2340 	ccb = &pm8001_ha->ccb_info[tag];
2341 	param = le32_to_cpu(psataPayload->param);
2342 	if (ccb) {
2343 		t = ccb->task;
2344 		pm8001_dev = ccb->device;
2345 	} else {
2346 		PM8001_FAIL_DBG(pm8001_ha,
2347 			pm8001_printk("ccb null\n"));
2348 		return;
2349 	}
2350 
2351 	if (t) {
2352 		if (t->dev && (t->dev->lldd_dev))
2353 			pm8001_dev = t->dev->lldd_dev;
2354 	} else {
2355 		PM8001_FAIL_DBG(pm8001_ha,
2356 			pm8001_printk("task null\n"));
2357 		return;
2358 	}
2359 
2360 	if ((pm8001_dev && !(pm8001_dev->id & NCQ_READ_LOG_FLAG))
2361 		&& unlikely(!t || !t->lldd_task || !t->dev)) {
2362 		PM8001_FAIL_DBG(pm8001_ha,
2363 			pm8001_printk("task or dev null\n"));
2364 		return;
2365 	}
2366 
2367 	ts = &t->task_status;
2368 	if (!ts) {
2369 		PM8001_FAIL_DBG(pm8001_ha,
2370 			pm8001_printk("ts null\n"));
2371 		return;
2372 	}
2373 
2374 	if (status)
2375 		PM8001_IOERR_DBG(pm8001_ha, pm8001_printk(
2376 			"status:0x%x, tag:0x%x, task::0x%p\n",
2377 			status, tag, t));
2378 
2379 	/* Print sas address of IO failed device */
2380 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
2381 		(status != IO_UNDERFLOW)) {
2382 		if (!((t->dev->parent) &&
2383 			(dev_is_expander(t->dev->parent->dev_type)))) {
2384 			for (i = 0 , j = 4; j <= 7 && i <= 3; i++ , j++)
2385 				sata_addr_low[i] = pm8001_ha->sas_addr[j];
2386 			for (i = 0 , j = 0; j <= 3 && i <= 3; i++ , j++)
2387 				sata_addr_hi[i] = pm8001_ha->sas_addr[j];
2388 			memcpy(&temp_sata_addr_low, sata_addr_low,
2389 				sizeof(sata_addr_low));
2390 			memcpy(&temp_sata_addr_hi, sata_addr_hi,
2391 				sizeof(sata_addr_hi));
2392 			temp_sata_addr_hi = (((temp_sata_addr_hi >> 24) & 0xff)
2393 						|((temp_sata_addr_hi << 8) &
2394 						0xff0000) |
2395 						((temp_sata_addr_hi >> 8)
2396 						& 0xff00) |
2397 						((temp_sata_addr_hi << 24) &
2398 						0xff000000));
2399 			temp_sata_addr_low = ((((temp_sata_addr_low >> 24)
2400 						& 0xff) |
2401 						((temp_sata_addr_low << 8)
2402 						& 0xff0000) |
2403 						((temp_sata_addr_low >> 8)
2404 						& 0xff00) |
2405 						((temp_sata_addr_low << 24)
2406 						& 0xff000000)) +
2407 						pm8001_dev->attached_phy +
2408 						0x10);
2409 			PM8001_FAIL_DBG(pm8001_ha,
2410 				pm8001_printk("SAS Address of IO Failure Drive:"
2411 				"%08x%08x", temp_sata_addr_hi,
2412 					temp_sata_addr_low));
2413 		} else {
2414 			PM8001_FAIL_DBG(pm8001_ha,
2415 				pm8001_printk("SAS Address of IO Failure Drive:"
2416 				"%016llx", SAS_ADDR(t->dev->sas_addr)));
2417 		}
2418 	}
2419 	switch (status) {
2420 	case IO_SUCCESS:
2421 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS\n"));
2422 		if (param == 0) {
2423 			ts->resp = SAS_TASK_COMPLETE;
2424 			ts->stat = SAM_STAT_GOOD;
2425 			/* check if response is for SEND READ LOG */
2426 			if (pm8001_dev &&
2427 				(pm8001_dev->id & NCQ_READ_LOG_FLAG)) {
2428 				/* set new bit for abort_all */
2429 				pm8001_dev->id |= NCQ_ABORT_ALL_FLAG;
2430 				/* clear bit for read log */
2431 				pm8001_dev->id = pm8001_dev->id & 0x7FFFFFFF;
2432 				pm8001_send_abort_all(pm8001_ha, pm8001_dev);
2433 				/* Free the tag */
2434 				pm8001_tag_free(pm8001_ha, tag);
2435 				sas_free_task(t);
2436 				return;
2437 			}
2438 		} else {
2439 			u8 len;
2440 			ts->resp = SAS_TASK_COMPLETE;
2441 			ts->stat = SAS_PROTO_RESPONSE;
2442 			ts->residual = param;
2443 			PM8001_IO_DBG(pm8001_ha,
2444 				pm8001_printk("SAS_PROTO_RESPONSE len = %d\n",
2445 				param));
2446 			sata_resp = &psataPayload->sata_resp[0];
2447 			resp = (struct ata_task_resp *)ts->buf;
2448 			if (t->ata_task.dma_xfer == 0 &&
2449 			    t->data_dir == DMA_FROM_DEVICE) {
2450 				len = sizeof(struct pio_setup_fis);
2451 				PM8001_IO_DBG(pm8001_ha,
2452 				pm8001_printk("PIO read len = %d\n", len));
2453 			} else if (t->ata_task.use_ncq) {
2454 				len = sizeof(struct set_dev_bits_fis);
2455 				PM8001_IO_DBG(pm8001_ha,
2456 					pm8001_printk("FPDMA len = %d\n", len));
2457 			} else {
2458 				len = sizeof(struct dev_to_host_fis);
2459 				PM8001_IO_DBG(pm8001_ha,
2460 				pm8001_printk("other len = %d\n", len));
2461 			}
2462 			if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) {
2463 				resp->frame_len = len;
2464 				memcpy(&resp->ending_fis[0], sata_resp, len);
2465 				ts->buf_valid_size = sizeof(*resp);
2466 			} else
2467 				PM8001_IO_DBG(pm8001_ha,
2468 					pm8001_printk("response to large\n"));
2469 		}
2470 		if (pm8001_dev)
2471 			pm8001_dev->running_req--;
2472 		break;
2473 	case IO_ABORTED:
2474 		PM8001_IO_DBG(pm8001_ha,
2475 			pm8001_printk("IO_ABORTED IOMB Tag\n"));
2476 		ts->resp = SAS_TASK_COMPLETE;
2477 		ts->stat = SAS_ABORTED_TASK;
2478 		if (pm8001_dev)
2479 			pm8001_dev->running_req--;
2480 		break;
2481 		/* following cases are to do cases */
2482 	case IO_UNDERFLOW:
2483 		/* SATA Completion with error */
2484 		PM8001_IO_DBG(pm8001_ha,
2485 			pm8001_printk("IO_UNDERFLOW param = %d\n", param));
2486 		ts->resp = SAS_TASK_COMPLETE;
2487 		ts->stat = SAS_DATA_UNDERRUN;
2488 		ts->residual =  param;
2489 		if (pm8001_dev)
2490 			pm8001_dev->running_req--;
2491 		break;
2492 	case IO_NO_DEVICE:
2493 		PM8001_IO_DBG(pm8001_ha,
2494 			pm8001_printk("IO_NO_DEVICE\n"));
2495 		ts->resp = SAS_TASK_UNDELIVERED;
2496 		ts->stat = SAS_PHY_DOWN;
2497 		break;
2498 	case IO_XFER_ERROR_BREAK:
2499 		PM8001_IO_DBG(pm8001_ha,
2500 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
2501 		ts->resp = SAS_TASK_COMPLETE;
2502 		ts->stat = SAS_INTERRUPTED;
2503 		break;
2504 	case IO_XFER_ERROR_PHY_NOT_READY:
2505 		PM8001_IO_DBG(pm8001_ha,
2506 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
2507 		ts->resp = SAS_TASK_COMPLETE;
2508 		ts->stat = SAS_OPEN_REJECT;
2509 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2510 		break;
2511 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2512 		PM8001_IO_DBG(pm8001_ha,
2513 			pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT"
2514 			"_SUPPORTED\n"));
2515 		ts->resp = SAS_TASK_COMPLETE;
2516 		ts->stat = SAS_OPEN_REJECT;
2517 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2518 		break;
2519 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2520 		PM8001_IO_DBG(pm8001_ha,
2521 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
2522 		ts->resp = SAS_TASK_COMPLETE;
2523 		ts->stat = SAS_OPEN_REJECT;
2524 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2525 		break;
2526 	case IO_OPEN_CNX_ERROR_BREAK:
2527 		PM8001_IO_DBG(pm8001_ha,
2528 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
2529 		ts->resp = SAS_TASK_COMPLETE;
2530 		ts->stat = SAS_OPEN_REJECT;
2531 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2532 		break;
2533 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2534 		PM8001_IO_DBG(pm8001_ha,
2535 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
2536 		ts->resp = SAS_TASK_COMPLETE;
2537 		ts->stat = SAS_DEV_NO_RESPONSE;
2538 		if (!t->uldd_task) {
2539 			pm8001_handle_event(pm8001_ha,
2540 				pm8001_dev,
2541 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2542 			ts->resp = SAS_TASK_UNDELIVERED;
2543 			ts->stat = SAS_QUEUE_FULL;
2544 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2545 			return;
2546 		}
2547 		break;
2548 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2549 		PM8001_IO_DBG(pm8001_ha,
2550 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
2551 		ts->resp = SAS_TASK_UNDELIVERED;
2552 		ts->stat = SAS_OPEN_REJECT;
2553 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2554 		if (!t->uldd_task) {
2555 			pm8001_handle_event(pm8001_ha,
2556 				pm8001_dev,
2557 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2558 			ts->resp = SAS_TASK_UNDELIVERED;
2559 			ts->stat = SAS_QUEUE_FULL;
2560 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2561 			return;
2562 		}
2563 		break;
2564 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2565 		PM8001_IO_DBG(pm8001_ha,
2566 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2567 			"NOT_SUPPORTED\n"));
2568 		ts->resp = SAS_TASK_COMPLETE;
2569 		ts->stat = SAS_OPEN_REJECT;
2570 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2571 		break;
2572 	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
2573 		PM8001_IO_DBG(pm8001_ha,
2574 			pm8001_printk("IO_OPEN_CNX_ERROR_STP_RESOURCES"
2575 			"_BUSY\n"));
2576 		ts->resp = SAS_TASK_COMPLETE;
2577 		ts->stat = SAS_DEV_NO_RESPONSE;
2578 		if (!t->uldd_task) {
2579 			pm8001_handle_event(pm8001_ha,
2580 				pm8001_dev,
2581 				IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY);
2582 			ts->resp = SAS_TASK_UNDELIVERED;
2583 			ts->stat = SAS_QUEUE_FULL;
2584 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2585 			return;
2586 		}
2587 		break;
2588 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2589 		PM8001_IO_DBG(pm8001_ha,
2590 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2591 		ts->resp = SAS_TASK_COMPLETE;
2592 		ts->stat = SAS_OPEN_REJECT;
2593 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2594 		break;
2595 	case IO_XFER_ERROR_NAK_RECEIVED:
2596 		PM8001_IO_DBG(pm8001_ha,
2597 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2598 		ts->resp = SAS_TASK_COMPLETE;
2599 		ts->stat = SAS_NAK_R_ERR;
2600 		break;
2601 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2602 		PM8001_IO_DBG(pm8001_ha,
2603 			pm8001_printk("IO_XFER_ERROR_ACK_NAK_TIMEOUT\n"));
2604 		ts->resp = SAS_TASK_COMPLETE;
2605 		ts->stat = SAS_NAK_R_ERR;
2606 		break;
2607 	case IO_XFER_ERROR_DMA:
2608 		PM8001_IO_DBG(pm8001_ha,
2609 			pm8001_printk("IO_XFER_ERROR_DMA\n"));
2610 		ts->resp = SAS_TASK_COMPLETE;
2611 		ts->stat = SAS_ABORTED_TASK;
2612 		break;
2613 	case IO_XFER_ERROR_SATA_LINK_TIMEOUT:
2614 		PM8001_IO_DBG(pm8001_ha,
2615 			pm8001_printk("IO_XFER_ERROR_SATA_LINK_TIMEOUT\n"));
2616 		ts->resp = SAS_TASK_UNDELIVERED;
2617 		ts->stat = SAS_DEV_NO_RESPONSE;
2618 		break;
2619 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2620 		PM8001_IO_DBG(pm8001_ha,
2621 			pm8001_printk("IO_XFER_ERROR_REJECTED_NCQ_MODE\n"));
2622 		ts->resp = SAS_TASK_COMPLETE;
2623 		ts->stat = SAS_DATA_UNDERRUN;
2624 		break;
2625 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2626 		PM8001_IO_DBG(pm8001_ha,
2627 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2628 		ts->resp = SAS_TASK_COMPLETE;
2629 		ts->stat = SAS_OPEN_TO;
2630 		break;
2631 	case IO_PORT_IN_RESET:
2632 		PM8001_IO_DBG(pm8001_ha,
2633 			pm8001_printk("IO_PORT_IN_RESET\n"));
2634 		ts->resp = SAS_TASK_COMPLETE;
2635 		ts->stat = SAS_DEV_NO_RESPONSE;
2636 		break;
2637 	case IO_DS_NON_OPERATIONAL:
2638 		PM8001_IO_DBG(pm8001_ha,
2639 			pm8001_printk("IO_DS_NON_OPERATIONAL\n"));
2640 		ts->resp = SAS_TASK_COMPLETE;
2641 		ts->stat = SAS_DEV_NO_RESPONSE;
2642 		if (!t->uldd_task) {
2643 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2644 				    IO_DS_NON_OPERATIONAL);
2645 			ts->resp = SAS_TASK_UNDELIVERED;
2646 			ts->stat = SAS_QUEUE_FULL;
2647 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2648 			return;
2649 		}
2650 		break;
2651 	case IO_DS_IN_RECOVERY:
2652 		PM8001_IO_DBG(pm8001_ha,
2653 			pm8001_printk("  IO_DS_IN_RECOVERY\n"));
2654 		ts->resp = SAS_TASK_COMPLETE;
2655 		ts->stat = SAS_DEV_NO_RESPONSE;
2656 		break;
2657 	case IO_DS_IN_ERROR:
2658 		PM8001_IO_DBG(pm8001_ha,
2659 			pm8001_printk("IO_DS_IN_ERROR\n"));
2660 		ts->resp = SAS_TASK_COMPLETE;
2661 		ts->stat = SAS_DEV_NO_RESPONSE;
2662 		if (!t->uldd_task) {
2663 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2664 				    IO_DS_IN_ERROR);
2665 			ts->resp = SAS_TASK_UNDELIVERED;
2666 			ts->stat = SAS_QUEUE_FULL;
2667 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2668 			return;
2669 		}
2670 		break;
2671 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2672 		PM8001_IO_DBG(pm8001_ha,
2673 			pm8001_printk("IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n"));
2674 		ts->resp = SAS_TASK_COMPLETE;
2675 		ts->stat = SAS_OPEN_REJECT;
2676 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2677 		break;
2678 	default:
2679 		PM8001_DEVIO_DBG(pm8001_ha,
2680 			pm8001_printk("Unknown status 0x%x\n", status));
2681 		/* not allowed case. Therefore, return failed status */
2682 		ts->resp = SAS_TASK_COMPLETE;
2683 		ts->stat = SAS_DEV_NO_RESPONSE;
2684 		break;
2685 	}
2686 	spin_lock_irqsave(&t->task_state_lock, flags);
2687 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2688 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2689 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2690 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2691 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2692 		PM8001_FAIL_DBG(pm8001_ha,
2693 			pm8001_printk("task 0x%p done with io_status 0x%x"
2694 			" resp 0x%x stat 0x%x but aborted by upper layer!\n",
2695 			t, status, ts->resp, ts->stat));
2696 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2697 	} else {
2698 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2699 		pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2700 	}
2701 }
2702 
2703 /*See the comments for mpi_ssp_completion */
2704 static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
2705 {
2706 	struct sas_task *t;
2707 	struct task_status_struct *ts;
2708 	struct pm8001_ccb_info *ccb;
2709 	struct pm8001_device *pm8001_dev;
2710 	struct sata_event_resp *psataPayload =
2711 		(struct sata_event_resp *)(piomb + 4);
2712 	u32 event = le32_to_cpu(psataPayload->event);
2713 	u32 tag = le32_to_cpu(psataPayload->tag);
2714 	u32 port_id = le32_to_cpu(psataPayload->port_id);
2715 	u32 dev_id = le32_to_cpu(psataPayload->device_id);
2716 	unsigned long flags;
2717 
2718 	ccb = &pm8001_ha->ccb_info[tag];
2719 
2720 	if (ccb) {
2721 		t = ccb->task;
2722 		pm8001_dev = ccb->device;
2723 	} else {
2724 		PM8001_FAIL_DBG(pm8001_ha,
2725 			pm8001_printk("No CCB !!!. returning\n"));
2726 	}
2727 	if (event)
2728 		PM8001_FAIL_DBG(pm8001_ha,
2729 			pm8001_printk("SATA EVENT 0x%x\n", event));
2730 
2731 	/* Check if this is NCQ error */
2732 	if (event == IO_XFER_ERROR_ABORTED_NCQ_MODE) {
2733 		/* find device using device id */
2734 		pm8001_dev = pm8001_find_dev(pm8001_ha, dev_id);
2735 		/* send read log extension */
2736 		if (pm8001_dev)
2737 			pm8001_send_read_log(pm8001_ha, pm8001_dev);
2738 		return;
2739 	}
2740 
2741 	ccb = &pm8001_ha->ccb_info[tag];
2742 	t = ccb->task;
2743 	pm8001_dev = ccb->device;
2744 	if (event)
2745 		PM8001_FAIL_DBG(pm8001_ha,
2746 			pm8001_printk("sata IO status 0x%x\n", event));
2747 	if (unlikely(!t || !t->lldd_task || !t->dev))
2748 		return;
2749 	ts = &t->task_status;
2750 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
2751 		"port_id:0x%x, device_id:0x%x, tag:0x%x, event:0x%x\n",
2752 		port_id, dev_id, tag, event));
2753 	switch (event) {
2754 	case IO_OVERFLOW:
2755 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW\n"));
2756 		ts->resp = SAS_TASK_COMPLETE;
2757 		ts->stat = SAS_DATA_OVERRUN;
2758 		ts->residual = 0;
2759 		if (pm8001_dev)
2760 			pm8001_dev->running_req--;
2761 		break;
2762 	case IO_XFER_ERROR_BREAK:
2763 		PM8001_IO_DBG(pm8001_ha,
2764 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
2765 		ts->resp = SAS_TASK_COMPLETE;
2766 		ts->stat = SAS_INTERRUPTED;
2767 		break;
2768 	case IO_XFER_ERROR_PHY_NOT_READY:
2769 		PM8001_IO_DBG(pm8001_ha,
2770 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
2771 		ts->resp = SAS_TASK_COMPLETE;
2772 		ts->stat = SAS_OPEN_REJECT;
2773 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2774 		break;
2775 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2776 		PM8001_IO_DBG(pm8001_ha,
2777 			pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT"
2778 			"_SUPPORTED\n"));
2779 		ts->resp = SAS_TASK_COMPLETE;
2780 		ts->stat = SAS_OPEN_REJECT;
2781 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2782 		break;
2783 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2784 		PM8001_IO_DBG(pm8001_ha,
2785 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
2786 		ts->resp = SAS_TASK_COMPLETE;
2787 		ts->stat = SAS_OPEN_REJECT;
2788 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2789 		break;
2790 	case IO_OPEN_CNX_ERROR_BREAK:
2791 		PM8001_IO_DBG(pm8001_ha,
2792 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
2793 		ts->resp = SAS_TASK_COMPLETE;
2794 		ts->stat = SAS_OPEN_REJECT;
2795 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2796 		break;
2797 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2798 		PM8001_IO_DBG(pm8001_ha,
2799 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
2800 		ts->resp = SAS_TASK_UNDELIVERED;
2801 		ts->stat = SAS_DEV_NO_RESPONSE;
2802 		if (!t->uldd_task) {
2803 			pm8001_handle_event(pm8001_ha,
2804 				pm8001_dev,
2805 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2806 			ts->resp = SAS_TASK_COMPLETE;
2807 			ts->stat = SAS_QUEUE_FULL;
2808 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2809 			return;
2810 		}
2811 		break;
2812 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2813 		PM8001_IO_DBG(pm8001_ha,
2814 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
2815 		ts->resp = SAS_TASK_UNDELIVERED;
2816 		ts->stat = SAS_OPEN_REJECT;
2817 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2818 		break;
2819 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2820 		PM8001_IO_DBG(pm8001_ha,
2821 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2822 			"NOT_SUPPORTED\n"));
2823 		ts->resp = SAS_TASK_COMPLETE;
2824 		ts->stat = SAS_OPEN_REJECT;
2825 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2826 		break;
2827 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2828 		PM8001_IO_DBG(pm8001_ha,
2829 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2830 		ts->resp = SAS_TASK_COMPLETE;
2831 		ts->stat = SAS_OPEN_REJECT;
2832 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2833 		break;
2834 	case IO_XFER_ERROR_NAK_RECEIVED:
2835 		PM8001_IO_DBG(pm8001_ha,
2836 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2837 		ts->resp = SAS_TASK_COMPLETE;
2838 		ts->stat = SAS_NAK_R_ERR;
2839 		break;
2840 	case IO_XFER_ERROR_PEER_ABORTED:
2841 		PM8001_IO_DBG(pm8001_ha,
2842 			pm8001_printk("IO_XFER_ERROR_PEER_ABORTED\n"));
2843 		ts->resp = SAS_TASK_COMPLETE;
2844 		ts->stat = SAS_NAK_R_ERR;
2845 		break;
2846 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2847 		PM8001_IO_DBG(pm8001_ha,
2848 			pm8001_printk("IO_XFER_ERROR_REJECTED_NCQ_MODE\n"));
2849 		ts->resp = SAS_TASK_COMPLETE;
2850 		ts->stat = SAS_DATA_UNDERRUN;
2851 		break;
2852 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2853 		PM8001_IO_DBG(pm8001_ha,
2854 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2855 		ts->resp = SAS_TASK_COMPLETE;
2856 		ts->stat = SAS_OPEN_TO;
2857 		break;
2858 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2859 		PM8001_IO_DBG(pm8001_ha,
2860 			pm8001_printk("IO_XFER_ERROR_UNEXPECTED_PHASE\n"));
2861 		ts->resp = SAS_TASK_COMPLETE;
2862 		ts->stat = SAS_OPEN_TO;
2863 		break;
2864 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2865 		PM8001_IO_DBG(pm8001_ha,
2866 			pm8001_printk("IO_XFER_ERROR_XFER_RDY_OVERRUN\n"));
2867 		ts->resp = SAS_TASK_COMPLETE;
2868 		ts->stat = SAS_OPEN_TO;
2869 		break;
2870 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2871 		PM8001_IO_DBG(pm8001_ha,
2872 		       pm8001_printk("IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n"));
2873 		ts->resp = SAS_TASK_COMPLETE;
2874 		ts->stat = SAS_OPEN_TO;
2875 		break;
2876 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2877 		PM8001_IO_DBG(pm8001_ha,
2878 			pm8001_printk("IO_XFER_ERROR_OFFSET_MISMATCH\n"));
2879 		ts->resp = SAS_TASK_COMPLETE;
2880 		ts->stat = SAS_OPEN_TO;
2881 		break;
2882 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2883 		PM8001_IO_DBG(pm8001_ha,
2884 			pm8001_printk("IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n"));
2885 		ts->resp = SAS_TASK_COMPLETE;
2886 		ts->stat = SAS_OPEN_TO;
2887 		break;
2888 	case IO_XFER_CMD_FRAME_ISSUED:
2889 		PM8001_IO_DBG(pm8001_ha,
2890 			pm8001_printk("IO_XFER_CMD_FRAME_ISSUED\n"));
2891 		break;
2892 	case IO_XFER_PIO_SETUP_ERROR:
2893 		PM8001_IO_DBG(pm8001_ha,
2894 			pm8001_printk("IO_XFER_PIO_SETUP_ERROR\n"));
2895 		ts->resp = SAS_TASK_COMPLETE;
2896 		ts->stat = SAS_OPEN_TO;
2897 		break;
2898 	default:
2899 		PM8001_DEVIO_DBG(pm8001_ha,
2900 			pm8001_printk("Unknown status 0x%x\n", event));
2901 		/* not allowed case. Therefore, return failed status */
2902 		ts->resp = SAS_TASK_COMPLETE;
2903 		ts->stat = SAS_OPEN_TO;
2904 		break;
2905 	}
2906 	spin_lock_irqsave(&t->task_state_lock, flags);
2907 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2908 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2909 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2910 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2911 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2912 		PM8001_FAIL_DBG(pm8001_ha,
2913 			pm8001_printk("task 0x%p done with io_status 0x%x"
2914 			" resp 0x%x stat 0x%x but aborted by upper layer!\n",
2915 			t, event, ts->resp, ts->stat));
2916 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2917 	} else {
2918 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2919 		pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2920 	}
2921 }
2922 
2923 /*See the comments for mpi_ssp_completion */
2924 static void
2925 mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2926 {
2927 	struct sas_task *t;
2928 	struct pm8001_ccb_info *ccb;
2929 	unsigned long flags;
2930 	u32 status;
2931 	u32 tag;
2932 	struct smp_completion_resp *psmpPayload;
2933 	struct task_status_struct *ts;
2934 	struct pm8001_device *pm8001_dev;
2935 
2936 	psmpPayload = (struct smp_completion_resp *)(piomb + 4);
2937 	status = le32_to_cpu(psmpPayload->status);
2938 	tag = le32_to_cpu(psmpPayload->tag);
2939 
2940 	ccb = &pm8001_ha->ccb_info[tag];
2941 	t = ccb->task;
2942 	ts = &t->task_status;
2943 	pm8001_dev = ccb->device;
2944 	if (status) {
2945 		PM8001_FAIL_DBG(pm8001_ha,
2946 			pm8001_printk("smp IO status 0x%x\n", status));
2947 		PM8001_IOERR_DBG(pm8001_ha,
2948 			pm8001_printk("status:0x%x, tag:0x%x, task:0x%p\n",
2949 			status, tag, t));
2950 	}
2951 	if (unlikely(!t || !t->lldd_task || !t->dev))
2952 		return;
2953 
2954 	switch (status) {
2955 	case IO_SUCCESS:
2956 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS\n"));
2957 		ts->resp = SAS_TASK_COMPLETE;
2958 		ts->stat = SAM_STAT_GOOD;
2959 		if (pm8001_dev)
2960 			pm8001_dev->running_req--;
2961 		break;
2962 	case IO_ABORTED:
2963 		PM8001_IO_DBG(pm8001_ha,
2964 			pm8001_printk("IO_ABORTED IOMB\n"));
2965 		ts->resp = SAS_TASK_COMPLETE;
2966 		ts->stat = SAS_ABORTED_TASK;
2967 		if (pm8001_dev)
2968 			pm8001_dev->running_req--;
2969 		break;
2970 	case IO_OVERFLOW:
2971 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW\n"));
2972 		ts->resp = SAS_TASK_COMPLETE;
2973 		ts->stat = SAS_DATA_OVERRUN;
2974 		ts->residual = 0;
2975 		if (pm8001_dev)
2976 			pm8001_dev->running_req--;
2977 		break;
2978 	case IO_NO_DEVICE:
2979 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_NO_DEVICE\n"));
2980 		ts->resp = SAS_TASK_COMPLETE;
2981 		ts->stat = SAS_PHY_DOWN;
2982 		break;
2983 	case IO_ERROR_HW_TIMEOUT:
2984 		PM8001_IO_DBG(pm8001_ha,
2985 			pm8001_printk("IO_ERROR_HW_TIMEOUT\n"));
2986 		ts->resp = SAS_TASK_COMPLETE;
2987 		ts->stat = SAM_STAT_BUSY;
2988 		break;
2989 	case IO_XFER_ERROR_BREAK:
2990 		PM8001_IO_DBG(pm8001_ha,
2991 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
2992 		ts->resp = SAS_TASK_COMPLETE;
2993 		ts->stat = SAM_STAT_BUSY;
2994 		break;
2995 	case IO_XFER_ERROR_PHY_NOT_READY:
2996 		PM8001_IO_DBG(pm8001_ha,
2997 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
2998 		ts->resp = SAS_TASK_COMPLETE;
2999 		ts->stat = SAM_STAT_BUSY;
3000 		break;
3001 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
3002 		PM8001_IO_DBG(pm8001_ha,
3003 		pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n"));
3004 		ts->resp = SAS_TASK_COMPLETE;
3005 		ts->stat = SAS_OPEN_REJECT;
3006 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
3007 		break;
3008 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
3009 		PM8001_IO_DBG(pm8001_ha,
3010 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
3011 		ts->resp = SAS_TASK_COMPLETE;
3012 		ts->stat = SAS_OPEN_REJECT;
3013 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
3014 		break;
3015 	case IO_OPEN_CNX_ERROR_BREAK:
3016 		PM8001_IO_DBG(pm8001_ha,
3017 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
3018 		ts->resp = SAS_TASK_COMPLETE;
3019 		ts->stat = SAS_OPEN_REJECT;
3020 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
3021 		break;
3022 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
3023 		PM8001_IO_DBG(pm8001_ha,
3024 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
3025 		ts->resp = SAS_TASK_COMPLETE;
3026 		ts->stat = SAS_OPEN_REJECT;
3027 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
3028 		pm8001_handle_event(pm8001_ha,
3029 				pm8001_dev,
3030 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
3031 		break;
3032 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
3033 		PM8001_IO_DBG(pm8001_ha,
3034 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
3035 		ts->resp = SAS_TASK_COMPLETE;
3036 		ts->stat = SAS_OPEN_REJECT;
3037 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
3038 		break;
3039 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
3040 		PM8001_IO_DBG(pm8001_ha,
3041 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
3042 			"NOT_SUPPORTED\n"));
3043 		ts->resp = SAS_TASK_COMPLETE;
3044 		ts->stat = SAS_OPEN_REJECT;
3045 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
3046 		break;
3047 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
3048 		PM8001_IO_DBG(pm8001_ha,
3049 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
3050 		ts->resp = SAS_TASK_COMPLETE;
3051 		ts->stat = SAS_OPEN_REJECT;
3052 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
3053 		break;
3054 	case IO_XFER_ERROR_RX_FRAME:
3055 		PM8001_IO_DBG(pm8001_ha,
3056 			pm8001_printk("IO_XFER_ERROR_RX_FRAME\n"));
3057 		ts->resp = SAS_TASK_COMPLETE;
3058 		ts->stat = SAS_DEV_NO_RESPONSE;
3059 		break;
3060 	case IO_XFER_OPEN_RETRY_TIMEOUT:
3061 		PM8001_IO_DBG(pm8001_ha,
3062 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
3063 		ts->resp = SAS_TASK_COMPLETE;
3064 		ts->stat = SAS_OPEN_REJECT;
3065 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3066 		break;
3067 	case IO_ERROR_INTERNAL_SMP_RESOURCE:
3068 		PM8001_IO_DBG(pm8001_ha,
3069 			pm8001_printk("IO_ERROR_INTERNAL_SMP_RESOURCE\n"));
3070 		ts->resp = SAS_TASK_COMPLETE;
3071 		ts->stat = SAS_QUEUE_FULL;
3072 		break;
3073 	case IO_PORT_IN_RESET:
3074 		PM8001_IO_DBG(pm8001_ha,
3075 			pm8001_printk("IO_PORT_IN_RESET\n"));
3076 		ts->resp = SAS_TASK_COMPLETE;
3077 		ts->stat = SAS_OPEN_REJECT;
3078 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3079 		break;
3080 	case IO_DS_NON_OPERATIONAL:
3081 		PM8001_IO_DBG(pm8001_ha,
3082 			pm8001_printk("IO_DS_NON_OPERATIONAL\n"));
3083 		ts->resp = SAS_TASK_COMPLETE;
3084 		ts->stat = SAS_DEV_NO_RESPONSE;
3085 		break;
3086 	case IO_DS_IN_RECOVERY:
3087 		PM8001_IO_DBG(pm8001_ha,
3088 			pm8001_printk("IO_DS_IN_RECOVERY\n"));
3089 		ts->resp = SAS_TASK_COMPLETE;
3090 		ts->stat = SAS_OPEN_REJECT;
3091 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3092 		break;
3093 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
3094 		PM8001_IO_DBG(pm8001_ha,
3095 			pm8001_printk("IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n"));
3096 		ts->resp = SAS_TASK_COMPLETE;
3097 		ts->stat = SAS_OPEN_REJECT;
3098 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3099 		break;
3100 	default:
3101 		PM8001_DEVIO_DBG(pm8001_ha,
3102 			pm8001_printk("Unknown status 0x%x\n", status));
3103 		ts->resp = SAS_TASK_COMPLETE;
3104 		ts->stat = SAS_DEV_NO_RESPONSE;
3105 		/* not allowed case. Therefore, return failed status */
3106 		break;
3107 	}
3108 	spin_lock_irqsave(&t->task_state_lock, flags);
3109 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
3110 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
3111 	t->task_state_flags |= SAS_TASK_STATE_DONE;
3112 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
3113 		spin_unlock_irqrestore(&t->task_state_lock, flags);
3114 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p done with"
3115 			" io_status 0x%x resp 0x%x "
3116 			"stat 0x%x but aborted by upper layer!\n",
3117 			t, status, ts->resp, ts->stat));
3118 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3119 	} else {
3120 		spin_unlock_irqrestore(&t->task_state_lock, flags);
3121 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3122 		mb();/* in order to force CPU ordering */
3123 		t->task_done(t);
3124 	}
3125 }
3126 
3127 void pm8001_mpi_set_dev_state_resp(struct pm8001_hba_info *pm8001_ha,
3128 		void *piomb)
3129 {
3130 	struct set_dev_state_resp *pPayload =
3131 		(struct set_dev_state_resp *)(piomb + 4);
3132 	u32 tag = le32_to_cpu(pPayload->tag);
3133 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3134 	struct pm8001_device *pm8001_dev = ccb->device;
3135 	u32 status = le32_to_cpu(pPayload->status);
3136 	u32 device_id = le32_to_cpu(pPayload->device_id);
3137 	u8 pds = le32_to_cpu(pPayload->pds_nds) & PDS_BITS;
3138 	u8 nds = le32_to_cpu(pPayload->pds_nds) & NDS_BITS;
3139 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("Set device id = 0x%x state "
3140 		"from 0x%x to 0x%x status = 0x%x!\n",
3141 		device_id, pds, nds, status));
3142 	complete(pm8001_dev->setds_completion);
3143 	ccb->task = NULL;
3144 	ccb->ccb_tag = 0xFFFFFFFF;
3145 	pm8001_tag_free(pm8001_ha, tag);
3146 }
3147 
3148 void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3149 {
3150 	struct get_nvm_data_resp *pPayload =
3151 		(struct get_nvm_data_resp *)(piomb + 4);
3152 	u32 tag = le32_to_cpu(pPayload->tag);
3153 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3154 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
3155 	complete(pm8001_ha->nvmd_completion);
3156 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("Set nvm data complete!\n"));
3157 	if ((dlen_status & NVMD_STAT) != 0) {
3158 		PM8001_FAIL_DBG(pm8001_ha,
3159 			pm8001_printk("Set nvm data error!\n"));
3160 		return;
3161 	}
3162 	ccb->task = NULL;
3163 	ccb->ccb_tag = 0xFFFFFFFF;
3164 	pm8001_tag_free(pm8001_ha, tag);
3165 }
3166 
3167 void
3168 pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3169 {
3170 	struct fw_control_ex    *fw_control_context;
3171 	struct get_nvm_data_resp *pPayload =
3172 		(struct get_nvm_data_resp *)(piomb + 4);
3173 	u32 tag = le32_to_cpu(pPayload->tag);
3174 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3175 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
3176 	u32 ir_tds_bn_dps_das_nvm =
3177 		le32_to_cpu(pPayload->ir_tda_bn_dps_das_nvm);
3178 	void *virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr;
3179 	fw_control_context = ccb->fw_control_context;
3180 
3181 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("Get nvm data complete!\n"));
3182 	if ((dlen_status & NVMD_STAT) != 0) {
3183 		PM8001_FAIL_DBG(pm8001_ha,
3184 			pm8001_printk("Get nvm data error!\n"));
3185 		complete(pm8001_ha->nvmd_completion);
3186 		return;
3187 	}
3188 
3189 	if (ir_tds_bn_dps_das_nvm & IPMode) {
3190 		/* indirect mode - IR bit set */
3191 		PM8001_MSG_DBG(pm8001_ha,
3192 			pm8001_printk("Get NVMD success, IR=1\n"));
3193 		if ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == TWI_DEVICE) {
3194 			if (ir_tds_bn_dps_das_nvm == 0x80a80200) {
3195 				memcpy(pm8001_ha->sas_addr,
3196 				      ((u8 *)virt_addr + 4),
3197 				       SAS_ADDR_SIZE);
3198 				PM8001_MSG_DBG(pm8001_ha,
3199 					pm8001_printk("Get SAS address"
3200 					" from VPD successfully!\n"));
3201 			}
3202 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == C_SEEPROM)
3203 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == VPD_FLASH) ||
3204 			((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == EXPAN_ROM)) {
3205 				;
3206 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == AAP1_RDUMP)
3207 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == IOP_RDUMP)) {
3208 			;
3209 		} else {
3210 			/* Should not be happened*/
3211 			PM8001_MSG_DBG(pm8001_ha,
3212 				pm8001_printk("(IR=1)Wrong Device type 0x%x\n",
3213 				ir_tds_bn_dps_das_nvm));
3214 		}
3215 	} else /* direct mode */{
3216 		PM8001_MSG_DBG(pm8001_ha,
3217 			pm8001_printk("Get NVMD success, IR=0, dataLen=%d\n",
3218 			(dlen_status & NVMD_LEN) >> 24));
3219 	}
3220 	/* Though fw_control_context is freed below, usrAddr still needs
3221 	 * to be updated as this holds the response to the request function
3222 	 */
3223 	memcpy(fw_control_context->usrAddr,
3224 		pm8001_ha->memoryMap.region[NVMD].virt_ptr,
3225 		fw_control_context->len);
3226 	kfree(ccb->fw_control_context);
3227 	ccb->task = NULL;
3228 	ccb->ccb_tag = 0xFFFFFFFF;
3229 	pm8001_tag_free(pm8001_ha, tag);
3230 	complete(pm8001_ha->nvmd_completion);
3231 }
3232 
3233 int pm8001_mpi_local_phy_ctl(struct pm8001_hba_info *pm8001_ha, void *piomb)
3234 {
3235 	u32 tag;
3236 	struct local_phy_ctl_resp *pPayload =
3237 		(struct local_phy_ctl_resp *)(piomb + 4);
3238 	u32 status = le32_to_cpu(pPayload->status);
3239 	u32 phy_id = le32_to_cpu(pPayload->phyop_phyid) & ID_BITS;
3240 	u32 phy_op = le32_to_cpu(pPayload->phyop_phyid) & OP_BITS;
3241 	tag = le32_to_cpu(pPayload->tag);
3242 	if (status != 0) {
3243 		PM8001_MSG_DBG(pm8001_ha,
3244 			pm8001_printk("%x phy execute %x phy op failed!\n",
3245 			phy_id, phy_op));
3246 	} else {
3247 		PM8001_MSG_DBG(pm8001_ha,
3248 			pm8001_printk("%x phy execute %x phy op success!\n",
3249 			phy_id, phy_op));
3250 		pm8001_ha->phy[phy_id].reset_success = true;
3251 	}
3252 	if (pm8001_ha->phy[phy_id].enable_completion) {
3253 		complete(pm8001_ha->phy[phy_id].enable_completion);
3254 		pm8001_ha->phy[phy_id].enable_completion = NULL;
3255 	}
3256 	pm8001_tag_free(pm8001_ha, tag);
3257 	return 0;
3258 }
3259 
3260 /**
3261  * pm8001_bytes_dmaed - one of the interface function communication with libsas
3262  * @pm8001_ha: our hba card information
3263  * @i: which phy that received the event.
3264  *
3265  * when HBA driver received the identify done event or initiate FIS received
3266  * event(for SATA), it will invoke this function to notify the sas layer that
3267  * the sas toplogy has formed, please discover the the whole sas domain,
3268  * while receive a broadcast(change) primitive just tell the sas
3269  * layer to discover the changed domain rather than the whole domain.
3270  */
3271 void pm8001_bytes_dmaed(struct pm8001_hba_info *pm8001_ha, int i)
3272 {
3273 	struct pm8001_phy *phy = &pm8001_ha->phy[i];
3274 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
3275 	if (!phy->phy_attached)
3276 		return;
3277 
3278 	if (sas_phy->phy) {
3279 		struct sas_phy *sphy = sas_phy->phy;
3280 		sphy->negotiated_linkrate = sas_phy->linkrate;
3281 		sphy->minimum_linkrate = phy->minimum_linkrate;
3282 		sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
3283 		sphy->maximum_linkrate = phy->maximum_linkrate;
3284 		sphy->maximum_linkrate_hw = phy->maximum_linkrate;
3285 	}
3286 
3287 	if (phy->phy_type & PORT_TYPE_SAS) {
3288 		struct sas_identify_frame *id;
3289 		id = (struct sas_identify_frame *)phy->frame_rcvd;
3290 		id->dev_type = phy->identify.device_type;
3291 		id->initiator_bits = SAS_PROTOCOL_ALL;
3292 		id->target_bits = phy->identify.target_port_protocols;
3293 	} else if (phy->phy_type & PORT_TYPE_SATA) {
3294 		/*Nothing*/
3295 	}
3296 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("phy %d byte dmaded.\n", i));
3297 
3298 	sas_phy->frame_rcvd_size = phy->frame_rcvd_size;
3299 	pm8001_ha->sas->notify_port_event(sas_phy, PORTE_BYTES_DMAED);
3300 }
3301 
3302 /* Get the link rate speed  */
3303 void pm8001_get_lrate_mode(struct pm8001_phy *phy, u8 link_rate)
3304 {
3305 	struct sas_phy *sas_phy = phy->sas_phy.phy;
3306 
3307 	switch (link_rate) {
3308 	case PHY_SPEED_120:
3309 		phy->sas_phy.linkrate = SAS_LINK_RATE_12_0_GBPS;
3310 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_12_0_GBPS;
3311 		break;
3312 	case PHY_SPEED_60:
3313 		phy->sas_phy.linkrate = SAS_LINK_RATE_6_0_GBPS;
3314 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_6_0_GBPS;
3315 		break;
3316 	case PHY_SPEED_30:
3317 		phy->sas_phy.linkrate = SAS_LINK_RATE_3_0_GBPS;
3318 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS;
3319 		break;
3320 	case PHY_SPEED_15:
3321 		phy->sas_phy.linkrate = SAS_LINK_RATE_1_5_GBPS;
3322 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_1_5_GBPS;
3323 		break;
3324 	}
3325 	sas_phy->negotiated_linkrate = phy->sas_phy.linkrate;
3326 	sas_phy->maximum_linkrate_hw = SAS_LINK_RATE_6_0_GBPS;
3327 	sas_phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
3328 	sas_phy->maximum_linkrate = SAS_LINK_RATE_6_0_GBPS;
3329 	sas_phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
3330 }
3331 
3332 /**
3333  * asd_get_attached_sas_addr -- extract/generate attached SAS address
3334  * @phy: pointer to asd_phy
3335  * @sas_addr: pointer to buffer where the SAS address is to be written
3336  *
3337  * This function extracts the SAS address from an IDENTIFY frame
3338  * received.  If OOB is SATA, then a SAS address is generated from the
3339  * HA tables.
3340  *
3341  * LOCKING: the frame_rcvd_lock needs to be held since this parses the frame
3342  * buffer.
3343  */
3344 void pm8001_get_attached_sas_addr(struct pm8001_phy *phy,
3345 	u8 *sas_addr)
3346 {
3347 	if (phy->sas_phy.frame_rcvd[0] == 0x34
3348 		&& phy->sas_phy.oob_mode == SATA_OOB_MODE) {
3349 		struct pm8001_hba_info *pm8001_ha = phy->sas_phy.ha->lldd_ha;
3350 		/* FIS device-to-host */
3351 		u64 addr = be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr);
3352 		addr += phy->sas_phy.id;
3353 		*(__be64 *)sas_addr = cpu_to_be64(addr);
3354 	} else {
3355 		struct sas_identify_frame *idframe =
3356 			(void *) phy->sas_phy.frame_rcvd;
3357 		memcpy(sas_addr, idframe->sas_addr, SAS_ADDR_SIZE);
3358 	}
3359 }
3360 
3361 /**
3362  * pm8001_hw_event_ack_req- For PM8001,some events need to acknowage to FW.
3363  * @pm8001_ha: our hba card information
3364  * @Qnum: the outbound queue message number.
3365  * @SEA: source of event to ack
3366  * @port_id: port id.
3367  * @phyId: phy id.
3368  * @param0: parameter 0.
3369  * @param1: parameter 1.
3370  */
3371 static void pm8001_hw_event_ack_req(struct pm8001_hba_info *pm8001_ha,
3372 	u32 Qnum, u32 SEA, u32 port_id, u32 phyId, u32 param0, u32 param1)
3373 {
3374 	struct hw_event_ack_req	 payload;
3375 	u32 opc = OPC_INB_SAS_HW_EVENT_ACK;
3376 
3377 	struct inbound_queue_table *circularQ;
3378 
3379 	memset((u8 *)&payload, 0, sizeof(payload));
3380 	circularQ = &pm8001_ha->inbnd_q_tbl[Qnum];
3381 	payload.tag = cpu_to_le32(1);
3382 	payload.sea_phyid_portid = cpu_to_le32(((SEA & 0xFFFF) << 8) |
3383 		((phyId & 0x0F) << 4) | (port_id & 0x0F));
3384 	payload.param0 = cpu_to_le32(param0);
3385 	payload.param1 = cpu_to_le32(param1);
3386 	pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
3387 			sizeof(payload), 0);
3388 }
3389 
3390 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
3391 	u32 phyId, u32 phy_op);
3392 
3393 /**
3394  * hw_event_sas_phy_up -FW tells me a SAS phy up event.
3395  * @pm8001_ha: our hba card information
3396  * @piomb: IO message buffer
3397  */
3398 static void
3399 hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3400 {
3401 	struct hw_event_resp *pPayload =
3402 		(struct hw_event_resp *)(piomb + 4);
3403 	u32 lr_evt_status_phyid_portid =
3404 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3405 	u8 link_rate =
3406 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3407 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3408 	u8 phy_id =
3409 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3410 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3411 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3412 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3413 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3414 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3415 	unsigned long flags;
3416 	u8 deviceType = pPayload->sas_identify.dev_type;
3417 	port->port_state =  portstate;
3418 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3419 	PM8001_MSG_DBG(pm8001_ha,
3420 		pm8001_printk("HW_EVENT_SAS_PHY_UP port id = %d, phy id = %d\n",
3421 		port_id, phy_id));
3422 
3423 	switch (deviceType) {
3424 	case SAS_PHY_UNUSED:
3425 		PM8001_MSG_DBG(pm8001_ha,
3426 			pm8001_printk("device type no device.\n"));
3427 		break;
3428 	case SAS_END_DEVICE:
3429 		PM8001_MSG_DBG(pm8001_ha, pm8001_printk("end device.\n"));
3430 		pm8001_chip_phy_ctl_req(pm8001_ha, phy_id,
3431 			PHY_NOTIFY_ENABLE_SPINUP);
3432 		port->port_attached = 1;
3433 		pm8001_get_lrate_mode(phy, link_rate);
3434 		break;
3435 	case SAS_EDGE_EXPANDER_DEVICE:
3436 		PM8001_MSG_DBG(pm8001_ha,
3437 			pm8001_printk("expander device.\n"));
3438 		port->port_attached = 1;
3439 		pm8001_get_lrate_mode(phy, link_rate);
3440 		break;
3441 	case SAS_FANOUT_EXPANDER_DEVICE:
3442 		PM8001_MSG_DBG(pm8001_ha,
3443 			pm8001_printk("fanout expander device.\n"));
3444 		port->port_attached = 1;
3445 		pm8001_get_lrate_mode(phy, link_rate);
3446 		break;
3447 	default:
3448 		PM8001_DEVIO_DBG(pm8001_ha,
3449 			pm8001_printk("unknown device type(%x)\n", deviceType));
3450 		break;
3451 	}
3452 	phy->phy_type |= PORT_TYPE_SAS;
3453 	phy->identify.device_type = deviceType;
3454 	phy->phy_attached = 1;
3455 	if (phy->identify.device_type == SAS_END_DEVICE)
3456 		phy->identify.target_port_protocols = SAS_PROTOCOL_SSP;
3457 	else if (phy->identify.device_type != SAS_PHY_UNUSED)
3458 		phy->identify.target_port_protocols = SAS_PROTOCOL_SMP;
3459 	phy->sas_phy.oob_mode = SAS_OOB_MODE;
3460 	sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE);
3461 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3462 	memcpy(phy->frame_rcvd, &pPayload->sas_identify,
3463 		sizeof(struct sas_identify_frame)-4);
3464 	phy->frame_rcvd_size = sizeof(struct sas_identify_frame) - 4;
3465 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3466 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3467 	if (pm8001_ha->flags == PM8001F_RUN_TIME)
3468 		mdelay(200);/*delay a moment to wait disk to spinup*/
3469 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3470 }
3471 
3472 /**
3473  * hw_event_sata_phy_up -FW tells me a SATA phy up event.
3474  * @pm8001_ha: our hba card information
3475  * @piomb: IO message buffer
3476  */
3477 static void
3478 hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3479 {
3480 	struct hw_event_resp *pPayload =
3481 		(struct hw_event_resp *)(piomb + 4);
3482 	u32 lr_evt_status_phyid_portid =
3483 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3484 	u8 link_rate =
3485 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3486 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3487 	u8 phy_id =
3488 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3489 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3490 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3491 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3492 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3493 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3494 	unsigned long flags;
3495 	PM8001_DEVIO_DBG(pm8001_ha,
3496 		pm8001_printk("HW_EVENT_SATA_PHY_UP port id = %d,"
3497 		" phy id = %d\n", port_id, phy_id));
3498 	port->port_state =  portstate;
3499 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3500 	port->port_attached = 1;
3501 	pm8001_get_lrate_mode(phy, link_rate);
3502 	phy->phy_type |= PORT_TYPE_SATA;
3503 	phy->phy_attached = 1;
3504 	phy->sas_phy.oob_mode = SATA_OOB_MODE;
3505 	sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE);
3506 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3507 	memcpy(phy->frame_rcvd, ((u8 *)&pPayload->sata_fis - 4),
3508 		sizeof(struct dev_to_host_fis));
3509 	phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
3510 	phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
3511 	phy->identify.device_type = SAS_SATA_DEV;
3512 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3513 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3514 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3515 }
3516 
3517 /**
3518  * hw_event_phy_down -we should notify the libsas the phy is down.
3519  * @pm8001_ha: our hba card information
3520  * @piomb: IO message buffer
3521  */
3522 static void
3523 hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb)
3524 {
3525 	struct hw_event_resp *pPayload =
3526 		(struct hw_event_resp *)(piomb + 4);
3527 	u32 lr_evt_status_phyid_portid =
3528 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3529 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3530 	u8 phy_id =
3531 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3532 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3533 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3534 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3535 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3536 	port->port_state =  portstate;
3537 	phy->phy_type = 0;
3538 	phy->identify.device_type = 0;
3539 	phy->phy_attached = 0;
3540 	memset(&phy->dev_sas_addr, 0, SAS_ADDR_SIZE);
3541 	switch (portstate) {
3542 	case PORT_VALID:
3543 		break;
3544 	case PORT_INVALID:
3545 		PM8001_MSG_DBG(pm8001_ha,
3546 			pm8001_printk(" PortInvalid portID %d\n", port_id));
3547 		PM8001_MSG_DBG(pm8001_ha,
3548 			pm8001_printk(" Last phy Down and port invalid\n"));
3549 		port->port_attached = 0;
3550 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3551 			port_id, phy_id, 0, 0);
3552 		break;
3553 	case PORT_IN_RESET:
3554 		PM8001_MSG_DBG(pm8001_ha,
3555 			pm8001_printk(" Port In Reset portID %d\n", port_id));
3556 		break;
3557 	case PORT_NOT_ESTABLISHED:
3558 		PM8001_MSG_DBG(pm8001_ha,
3559 			pm8001_printk(" phy Down and PORT_NOT_ESTABLISHED\n"));
3560 		port->port_attached = 0;
3561 		break;
3562 	case PORT_LOSTCOMM:
3563 		PM8001_MSG_DBG(pm8001_ha,
3564 			pm8001_printk(" phy Down and PORT_LOSTCOMM\n"));
3565 		PM8001_MSG_DBG(pm8001_ha,
3566 			pm8001_printk(" Last phy Down and port invalid\n"));
3567 		port->port_attached = 0;
3568 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3569 			port_id, phy_id, 0, 0);
3570 		break;
3571 	default:
3572 		port->port_attached = 0;
3573 		PM8001_DEVIO_DBG(pm8001_ha,
3574 			pm8001_printk(" phy Down and(default) = %x\n",
3575 			portstate));
3576 		break;
3577 
3578 	}
3579 }
3580 
3581 /**
3582  * pm8001_mpi_reg_resp -process register device ID response.
3583  * @pm8001_ha: our hba card information
3584  * @piomb: IO message buffer
3585  *
3586  * when sas layer find a device it will notify LLDD, then the driver register
3587  * the domain device to FW, this event is the return device ID which the FW
3588  * has assigned, from now,inter-communication with FW is no longer using the
3589  * SAS address, use device ID which FW assigned.
3590  */
3591 int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3592 {
3593 	u32 status;
3594 	u32 device_id;
3595 	u32 htag;
3596 	struct pm8001_ccb_info *ccb;
3597 	struct pm8001_device *pm8001_dev;
3598 	struct dev_reg_resp *registerRespPayload =
3599 		(struct dev_reg_resp *)(piomb + 4);
3600 
3601 	htag = le32_to_cpu(registerRespPayload->tag);
3602 	ccb = &pm8001_ha->ccb_info[htag];
3603 	pm8001_dev = ccb->device;
3604 	status = le32_to_cpu(registerRespPayload->status);
3605 	device_id = le32_to_cpu(registerRespPayload->device_id);
3606 	PM8001_MSG_DBG(pm8001_ha,
3607 		pm8001_printk(" register device is status = %d\n", status));
3608 	switch (status) {
3609 	case DEVREG_SUCCESS:
3610 		PM8001_MSG_DBG(pm8001_ha, pm8001_printk("DEVREG_SUCCESS\n"));
3611 		pm8001_dev->device_id = device_id;
3612 		break;
3613 	case DEVREG_FAILURE_OUT_OF_RESOURCE:
3614 		PM8001_MSG_DBG(pm8001_ha,
3615 			pm8001_printk("DEVREG_FAILURE_OUT_OF_RESOURCE\n"));
3616 		break;
3617 	case DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED:
3618 		PM8001_MSG_DBG(pm8001_ha,
3619 		   pm8001_printk("DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED\n"));
3620 		break;
3621 	case DEVREG_FAILURE_INVALID_PHY_ID:
3622 		PM8001_MSG_DBG(pm8001_ha,
3623 			pm8001_printk("DEVREG_FAILURE_INVALID_PHY_ID\n"));
3624 		break;
3625 	case DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED:
3626 		PM8001_MSG_DBG(pm8001_ha,
3627 		   pm8001_printk("DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED\n"));
3628 		break;
3629 	case DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE:
3630 		PM8001_MSG_DBG(pm8001_ha,
3631 			pm8001_printk("DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE\n"));
3632 		break;
3633 	case DEVREG_FAILURE_PORT_NOT_VALID_STATE:
3634 		PM8001_MSG_DBG(pm8001_ha,
3635 			pm8001_printk("DEVREG_FAILURE_PORT_NOT_VALID_STATE\n"));
3636 		break;
3637 	case DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID:
3638 		PM8001_MSG_DBG(pm8001_ha,
3639 		       pm8001_printk("DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID\n"));
3640 		break;
3641 	default:
3642 		PM8001_MSG_DBG(pm8001_ha,
3643 			pm8001_printk("DEVREG_FAILURE_DEVICE_TYPE_NOT_SUPPORTED\n"));
3644 		break;
3645 	}
3646 	complete(pm8001_dev->dcompletion);
3647 	ccb->task = NULL;
3648 	ccb->ccb_tag = 0xFFFFFFFF;
3649 	pm8001_tag_free(pm8001_ha, htag);
3650 	return 0;
3651 }
3652 
3653 int pm8001_mpi_dereg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3654 {
3655 	u32 status;
3656 	u32 device_id;
3657 	struct dev_reg_resp *registerRespPayload =
3658 		(struct dev_reg_resp *)(piomb + 4);
3659 
3660 	status = le32_to_cpu(registerRespPayload->status);
3661 	device_id = le32_to_cpu(registerRespPayload->device_id);
3662 	if (status != 0)
3663 		PM8001_MSG_DBG(pm8001_ha,
3664 			pm8001_printk(" deregister device failed ,status = %x"
3665 			", device_id = %x\n", status, device_id));
3666 	return 0;
3667 }
3668 
3669 /**
3670  * fw_flash_update_resp - Response from FW for flash update command.
3671  * @pm8001_ha: our hba card information
3672  * @piomb: IO message buffer
3673  */
3674 int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
3675 		void *piomb)
3676 {
3677 	u32 status;
3678 	struct fw_flash_Update_resp *ppayload =
3679 		(struct fw_flash_Update_resp *)(piomb + 4);
3680 	u32 tag = le32_to_cpu(ppayload->tag);
3681 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3682 	status = le32_to_cpu(ppayload->status);
3683 	switch (status) {
3684 	case FLASH_UPDATE_COMPLETE_PENDING_REBOOT:
3685 		PM8001_MSG_DBG(pm8001_ha,
3686 		pm8001_printk(": FLASH_UPDATE_COMPLETE_PENDING_REBOOT\n"));
3687 		break;
3688 	case FLASH_UPDATE_IN_PROGRESS:
3689 		PM8001_MSG_DBG(pm8001_ha,
3690 			pm8001_printk(": FLASH_UPDATE_IN_PROGRESS\n"));
3691 		break;
3692 	case FLASH_UPDATE_HDR_ERR:
3693 		PM8001_MSG_DBG(pm8001_ha,
3694 			pm8001_printk(": FLASH_UPDATE_HDR_ERR\n"));
3695 		break;
3696 	case FLASH_UPDATE_OFFSET_ERR:
3697 		PM8001_MSG_DBG(pm8001_ha,
3698 			pm8001_printk(": FLASH_UPDATE_OFFSET_ERR\n"));
3699 		break;
3700 	case FLASH_UPDATE_CRC_ERR:
3701 		PM8001_MSG_DBG(pm8001_ha,
3702 			pm8001_printk(": FLASH_UPDATE_CRC_ERR\n"));
3703 		break;
3704 	case FLASH_UPDATE_LENGTH_ERR:
3705 		PM8001_MSG_DBG(pm8001_ha,
3706 			pm8001_printk(": FLASH_UPDATE_LENGTH_ERR\n"));
3707 		break;
3708 	case FLASH_UPDATE_HW_ERR:
3709 		PM8001_MSG_DBG(pm8001_ha,
3710 			pm8001_printk(": FLASH_UPDATE_HW_ERR\n"));
3711 		break;
3712 	case FLASH_UPDATE_DNLD_NOT_SUPPORTED:
3713 		PM8001_MSG_DBG(pm8001_ha,
3714 			pm8001_printk(": FLASH_UPDATE_DNLD_NOT_SUPPORTED\n"));
3715 		break;
3716 	case FLASH_UPDATE_DISABLED:
3717 		PM8001_MSG_DBG(pm8001_ha,
3718 			pm8001_printk(": FLASH_UPDATE_DISABLED\n"));
3719 		break;
3720 	default:
3721 		PM8001_DEVIO_DBG(pm8001_ha,
3722 			pm8001_printk("No matched status = %d\n", status));
3723 		break;
3724 	}
3725 	kfree(ccb->fw_control_context);
3726 	ccb->task = NULL;
3727 	ccb->ccb_tag = 0xFFFFFFFF;
3728 	pm8001_tag_free(pm8001_ha, tag);
3729 	complete(pm8001_ha->nvmd_completion);
3730 	return 0;
3731 }
3732 
3733 int pm8001_mpi_general_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
3734 {
3735 	u32 status;
3736 	int i;
3737 	struct general_event_resp *pPayload =
3738 		(struct general_event_resp *)(piomb + 4);
3739 	status = le32_to_cpu(pPayload->status);
3740 	PM8001_MSG_DBG(pm8001_ha,
3741 		pm8001_printk(" status = 0x%x\n", status));
3742 	for (i = 0; i < GENERAL_EVENT_PAYLOAD; i++)
3743 		PM8001_MSG_DBG(pm8001_ha,
3744 			pm8001_printk("inb_IOMB_payload[0x%x] 0x%x,\n", i,
3745 			pPayload->inb_IOMB_payload[i]));
3746 	return 0;
3747 }
3748 
3749 int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3750 {
3751 	struct sas_task *t;
3752 	struct pm8001_ccb_info *ccb;
3753 	unsigned long flags;
3754 	u32 status ;
3755 	u32 tag, scp;
3756 	struct task_status_struct *ts;
3757 	struct pm8001_device *pm8001_dev;
3758 
3759 	struct task_abort_resp *pPayload =
3760 		(struct task_abort_resp *)(piomb + 4);
3761 
3762 	status = le32_to_cpu(pPayload->status);
3763 	tag = le32_to_cpu(pPayload->tag);
3764 	if (!tag) {
3765 		PM8001_FAIL_DBG(pm8001_ha,
3766 			pm8001_printk(" TAG NULL. RETURNING !!!"));
3767 		return -1;
3768 	}
3769 
3770 	scp = le32_to_cpu(pPayload->scp);
3771 	ccb = &pm8001_ha->ccb_info[tag];
3772 	t = ccb->task;
3773 	pm8001_dev = ccb->device; /* retrieve device */
3774 
3775 	if (!t)	{
3776 		PM8001_FAIL_DBG(pm8001_ha,
3777 			pm8001_printk(" TASK NULL. RETURNING !!!"));
3778 		return -1;
3779 	}
3780 	ts = &t->task_status;
3781 	if (status != 0)
3782 		PM8001_FAIL_DBG(pm8001_ha,
3783 			pm8001_printk("task abort failed status 0x%x ,"
3784 			"tag = 0x%x, scp= 0x%x\n", status, tag, scp));
3785 	switch (status) {
3786 	case IO_SUCCESS:
3787 		PM8001_EH_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS\n"));
3788 		ts->resp = SAS_TASK_COMPLETE;
3789 		ts->stat = SAM_STAT_GOOD;
3790 		break;
3791 	case IO_NOT_VALID:
3792 		PM8001_EH_DBG(pm8001_ha, pm8001_printk("IO_NOT_VALID\n"));
3793 		ts->resp = TMF_RESP_FUNC_FAILED;
3794 		break;
3795 	}
3796 	spin_lock_irqsave(&t->task_state_lock, flags);
3797 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
3798 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
3799 	t->task_state_flags |= SAS_TASK_STATE_DONE;
3800 	spin_unlock_irqrestore(&t->task_state_lock, flags);
3801 	pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3802 	mb();
3803 
3804 	if (pm8001_dev->id & NCQ_ABORT_ALL_FLAG) {
3805 		pm8001_tag_free(pm8001_ha, tag);
3806 		sas_free_task(t);
3807 		/* clear the flag */
3808 		pm8001_dev->id &= 0xBFFFFFFF;
3809 	} else
3810 		t->task_done(t);
3811 
3812 	return 0;
3813 }
3814 
3815 /**
3816  * mpi_hw_event -The hw event has come.
3817  * @pm8001_ha: our hba card information
3818  * @piomb: IO message buffer
3819  */
3820 static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void* piomb)
3821 {
3822 	unsigned long flags;
3823 	struct hw_event_resp *pPayload =
3824 		(struct hw_event_resp *)(piomb + 4);
3825 	u32 lr_evt_status_phyid_portid =
3826 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3827 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3828 	u8 phy_id =
3829 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3830 	u16 eventType =
3831 		(u16)((lr_evt_status_phyid_portid & 0x00FFFF00) >> 8);
3832 	u8 status =
3833 		(u8)((lr_evt_status_phyid_portid & 0x0F000000) >> 24);
3834 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3835 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3836 	struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
3837 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
3838 		"SPC HW event for portid:%d, phyid:%d, event:%x, status:%x\n",
3839 		port_id, phy_id, eventType, status));
3840 	switch (eventType) {
3841 	case HW_EVENT_PHY_START_STATUS:
3842 		PM8001_MSG_DBG(pm8001_ha,
3843 		pm8001_printk("HW_EVENT_PHY_START_STATUS"
3844 			" status = %x\n", status));
3845 		if (status == 0) {
3846 			phy->phy_state = 1;
3847 			if (pm8001_ha->flags == PM8001F_RUN_TIME &&
3848 					phy->enable_completion != NULL)
3849 				complete(phy->enable_completion);
3850 		}
3851 		break;
3852 	case HW_EVENT_SAS_PHY_UP:
3853 		PM8001_MSG_DBG(pm8001_ha,
3854 			pm8001_printk("HW_EVENT_PHY_START_STATUS\n"));
3855 		hw_event_sas_phy_up(pm8001_ha, piomb);
3856 		break;
3857 	case HW_EVENT_SATA_PHY_UP:
3858 		PM8001_MSG_DBG(pm8001_ha,
3859 			pm8001_printk("HW_EVENT_SATA_PHY_UP\n"));
3860 		hw_event_sata_phy_up(pm8001_ha, piomb);
3861 		break;
3862 	case HW_EVENT_PHY_STOP_STATUS:
3863 		PM8001_MSG_DBG(pm8001_ha,
3864 			pm8001_printk("HW_EVENT_PHY_STOP_STATUS "
3865 			"status = %x\n", status));
3866 		if (status == 0)
3867 			phy->phy_state = 0;
3868 		break;
3869 	case HW_EVENT_SATA_SPINUP_HOLD:
3870 		PM8001_MSG_DBG(pm8001_ha,
3871 			pm8001_printk("HW_EVENT_SATA_SPINUP_HOLD\n"));
3872 		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_SPINUP_HOLD);
3873 		break;
3874 	case HW_EVENT_PHY_DOWN:
3875 		PM8001_MSG_DBG(pm8001_ha,
3876 			pm8001_printk("HW_EVENT_PHY_DOWN\n"));
3877 		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL);
3878 		phy->phy_attached = 0;
3879 		phy->phy_state = 0;
3880 		hw_event_phy_down(pm8001_ha, piomb);
3881 		break;
3882 	case HW_EVENT_PORT_INVALID:
3883 		PM8001_MSG_DBG(pm8001_ha,
3884 			pm8001_printk("HW_EVENT_PORT_INVALID\n"));
3885 		sas_phy_disconnected(sas_phy);
3886 		phy->phy_attached = 0;
3887 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3888 		break;
3889 	/* the broadcast change primitive received, tell the LIBSAS this event
3890 	to revalidate the sas domain*/
3891 	case HW_EVENT_BROADCAST_CHANGE:
3892 		PM8001_MSG_DBG(pm8001_ha,
3893 			pm8001_printk("HW_EVENT_BROADCAST_CHANGE\n"));
3894 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_BROADCAST_CHANGE,
3895 			port_id, phy_id, 1, 0);
3896 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3897 		sas_phy->sas_prim = HW_EVENT_BROADCAST_CHANGE;
3898 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3899 		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
3900 		break;
3901 	case HW_EVENT_PHY_ERROR:
3902 		PM8001_MSG_DBG(pm8001_ha,
3903 			pm8001_printk("HW_EVENT_PHY_ERROR\n"));
3904 		sas_phy_disconnected(&phy->sas_phy);
3905 		phy->phy_attached = 0;
3906 		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_ERROR);
3907 		break;
3908 	case HW_EVENT_BROADCAST_EXP:
3909 		PM8001_MSG_DBG(pm8001_ha,
3910 			pm8001_printk("HW_EVENT_BROADCAST_EXP\n"));
3911 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3912 		sas_phy->sas_prim = HW_EVENT_BROADCAST_EXP;
3913 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3914 		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
3915 		break;
3916 	case HW_EVENT_LINK_ERR_INVALID_DWORD:
3917 		PM8001_MSG_DBG(pm8001_ha,
3918 			pm8001_printk("HW_EVENT_LINK_ERR_INVALID_DWORD\n"));
3919 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3920 			HW_EVENT_LINK_ERR_INVALID_DWORD, port_id, phy_id, 0, 0);
3921 		sas_phy_disconnected(sas_phy);
3922 		phy->phy_attached = 0;
3923 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3924 		break;
3925 	case HW_EVENT_LINK_ERR_DISPARITY_ERROR:
3926 		PM8001_MSG_DBG(pm8001_ha,
3927 			pm8001_printk("HW_EVENT_LINK_ERR_DISPARITY_ERROR\n"));
3928 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3929 			HW_EVENT_LINK_ERR_DISPARITY_ERROR,
3930 			port_id, phy_id, 0, 0);
3931 		sas_phy_disconnected(sas_phy);
3932 		phy->phy_attached = 0;
3933 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3934 		break;
3935 	case HW_EVENT_LINK_ERR_CODE_VIOLATION:
3936 		PM8001_MSG_DBG(pm8001_ha,
3937 			pm8001_printk("HW_EVENT_LINK_ERR_CODE_VIOLATION\n"));
3938 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3939 			HW_EVENT_LINK_ERR_CODE_VIOLATION,
3940 			port_id, phy_id, 0, 0);
3941 		sas_phy_disconnected(sas_phy);
3942 		phy->phy_attached = 0;
3943 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3944 		break;
3945 	case HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH:
3946 		PM8001_MSG_DBG(pm8001_ha,
3947 		      pm8001_printk("HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH\n"));
3948 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3949 			HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH,
3950 			port_id, phy_id, 0, 0);
3951 		sas_phy_disconnected(sas_phy);
3952 		phy->phy_attached = 0;
3953 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3954 		break;
3955 	case HW_EVENT_MALFUNCTION:
3956 		PM8001_MSG_DBG(pm8001_ha,
3957 			pm8001_printk("HW_EVENT_MALFUNCTION\n"));
3958 		break;
3959 	case HW_EVENT_BROADCAST_SES:
3960 		PM8001_MSG_DBG(pm8001_ha,
3961 			pm8001_printk("HW_EVENT_BROADCAST_SES\n"));
3962 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3963 		sas_phy->sas_prim = HW_EVENT_BROADCAST_SES;
3964 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3965 		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
3966 		break;
3967 	case HW_EVENT_INBOUND_CRC_ERROR:
3968 		PM8001_MSG_DBG(pm8001_ha,
3969 			pm8001_printk("HW_EVENT_INBOUND_CRC_ERROR\n"));
3970 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3971 			HW_EVENT_INBOUND_CRC_ERROR,
3972 			port_id, phy_id, 0, 0);
3973 		break;
3974 	case HW_EVENT_HARD_RESET_RECEIVED:
3975 		PM8001_MSG_DBG(pm8001_ha,
3976 			pm8001_printk("HW_EVENT_HARD_RESET_RECEIVED\n"));
3977 		sas_ha->notify_port_event(sas_phy, PORTE_HARD_RESET);
3978 		break;
3979 	case HW_EVENT_ID_FRAME_TIMEOUT:
3980 		PM8001_MSG_DBG(pm8001_ha,
3981 			pm8001_printk("HW_EVENT_ID_FRAME_TIMEOUT\n"));
3982 		sas_phy_disconnected(sas_phy);
3983 		phy->phy_attached = 0;
3984 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3985 		break;
3986 	case HW_EVENT_LINK_ERR_PHY_RESET_FAILED:
3987 		PM8001_MSG_DBG(pm8001_ha,
3988 			pm8001_printk("HW_EVENT_LINK_ERR_PHY_RESET_FAILED\n"));
3989 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3990 			HW_EVENT_LINK_ERR_PHY_RESET_FAILED,
3991 			port_id, phy_id, 0, 0);
3992 		sas_phy_disconnected(sas_phy);
3993 		phy->phy_attached = 0;
3994 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3995 		break;
3996 	case HW_EVENT_PORT_RESET_TIMER_TMO:
3997 		PM8001_MSG_DBG(pm8001_ha,
3998 			pm8001_printk("HW_EVENT_PORT_RESET_TIMER_TMO\n"));
3999 		sas_phy_disconnected(sas_phy);
4000 		phy->phy_attached = 0;
4001 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
4002 		break;
4003 	case HW_EVENT_PORT_RECOVERY_TIMER_TMO:
4004 		PM8001_MSG_DBG(pm8001_ha,
4005 			pm8001_printk("HW_EVENT_PORT_RECOVERY_TIMER_TMO\n"));
4006 		sas_phy_disconnected(sas_phy);
4007 		phy->phy_attached = 0;
4008 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
4009 		break;
4010 	case HW_EVENT_PORT_RECOVER:
4011 		PM8001_MSG_DBG(pm8001_ha,
4012 			pm8001_printk("HW_EVENT_PORT_RECOVER\n"));
4013 		break;
4014 	case HW_EVENT_PORT_RESET_COMPLETE:
4015 		PM8001_MSG_DBG(pm8001_ha,
4016 			pm8001_printk("HW_EVENT_PORT_RESET_COMPLETE\n"));
4017 		break;
4018 	case EVENT_BROADCAST_ASYNCH_EVENT:
4019 		PM8001_MSG_DBG(pm8001_ha,
4020 			pm8001_printk("EVENT_BROADCAST_ASYNCH_EVENT\n"));
4021 		break;
4022 	default:
4023 		PM8001_DEVIO_DBG(pm8001_ha,
4024 			pm8001_printk("Unknown event type = %x\n", eventType));
4025 		break;
4026 	}
4027 	return 0;
4028 }
4029 
4030 /**
4031  * process_one_iomb - process one outbound Queue memory block
4032  * @pm8001_ha: our hba card information
4033  * @piomb: IO message buffer
4034  */
4035 static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb)
4036 {
4037 	__le32 pHeader = *(__le32 *)piomb;
4038 	u8 opc = (u8)((le32_to_cpu(pHeader)) & 0xFFF);
4039 
4040 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("process_one_iomb:"));
4041 
4042 	switch (opc) {
4043 	case OPC_OUB_ECHO:
4044 		PM8001_MSG_DBG(pm8001_ha, pm8001_printk("OPC_OUB_ECHO\n"));
4045 		break;
4046 	case OPC_OUB_HW_EVENT:
4047 		PM8001_MSG_DBG(pm8001_ha,
4048 			pm8001_printk("OPC_OUB_HW_EVENT\n"));
4049 		mpi_hw_event(pm8001_ha, piomb);
4050 		break;
4051 	case OPC_OUB_SSP_COMP:
4052 		PM8001_MSG_DBG(pm8001_ha,
4053 			pm8001_printk("OPC_OUB_SSP_COMP\n"));
4054 		mpi_ssp_completion(pm8001_ha, piomb);
4055 		break;
4056 	case OPC_OUB_SMP_COMP:
4057 		PM8001_MSG_DBG(pm8001_ha,
4058 			pm8001_printk("OPC_OUB_SMP_COMP\n"));
4059 		mpi_smp_completion(pm8001_ha, piomb);
4060 		break;
4061 	case OPC_OUB_LOCAL_PHY_CNTRL:
4062 		PM8001_MSG_DBG(pm8001_ha,
4063 			pm8001_printk("OPC_OUB_LOCAL_PHY_CNTRL\n"));
4064 		pm8001_mpi_local_phy_ctl(pm8001_ha, piomb);
4065 		break;
4066 	case OPC_OUB_DEV_REGIST:
4067 		PM8001_MSG_DBG(pm8001_ha,
4068 			pm8001_printk("OPC_OUB_DEV_REGIST\n"));
4069 		pm8001_mpi_reg_resp(pm8001_ha, piomb);
4070 		break;
4071 	case OPC_OUB_DEREG_DEV:
4072 		PM8001_MSG_DBG(pm8001_ha,
4073 			pm8001_printk("unregister the device\n"));
4074 		pm8001_mpi_dereg_resp(pm8001_ha, piomb);
4075 		break;
4076 	case OPC_OUB_GET_DEV_HANDLE:
4077 		PM8001_MSG_DBG(pm8001_ha,
4078 			pm8001_printk("OPC_OUB_GET_DEV_HANDLE\n"));
4079 		break;
4080 	case OPC_OUB_SATA_COMP:
4081 		PM8001_MSG_DBG(pm8001_ha,
4082 			pm8001_printk("OPC_OUB_SATA_COMP\n"));
4083 		mpi_sata_completion(pm8001_ha, piomb);
4084 		break;
4085 	case OPC_OUB_SATA_EVENT:
4086 		PM8001_MSG_DBG(pm8001_ha,
4087 			pm8001_printk("OPC_OUB_SATA_EVENT\n"));
4088 		mpi_sata_event(pm8001_ha, piomb);
4089 		break;
4090 	case OPC_OUB_SSP_EVENT:
4091 		PM8001_MSG_DBG(pm8001_ha,
4092 			pm8001_printk("OPC_OUB_SSP_EVENT\n"));
4093 		mpi_ssp_event(pm8001_ha, piomb);
4094 		break;
4095 	case OPC_OUB_DEV_HANDLE_ARRIV:
4096 		PM8001_MSG_DBG(pm8001_ha,
4097 			pm8001_printk("OPC_OUB_DEV_HANDLE_ARRIV\n"));
4098 		/*This is for target*/
4099 		break;
4100 	case OPC_OUB_SSP_RECV_EVENT:
4101 		PM8001_MSG_DBG(pm8001_ha,
4102 			pm8001_printk("OPC_OUB_SSP_RECV_EVENT\n"));
4103 		/*This is for target*/
4104 		break;
4105 	case OPC_OUB_DEV_INFO:
4106 		PM8001_MSG_DBG(pm8001_ha,
4107 			pm8001_printk("OPC_OUB_DEV_INFO\n"));
4108 		break;
4109 	case OPC_OUB_FW_FLASH_UPDATE:
4110 		PM8001_MSG_DBG(pm8001_ha,
4111 			pm8001_printk("OPC_OUB_FW_FLASH_UPDATE\n"));
4112 		pm8001_mpi_fw_flash_update_resp(pm8001_ha, piomb);
4113 		break;
4114 	case OPC_OUB_GPIO_RESPONSE:
4115 		PM8001_MSG_DBG(pm8001_ha,
4116 			pm8001_printk("OPC_OUB_GPIO_RESPONSE\n"));
4117 		break;
4118 	case OPC_OUB_GPIO_EVENT:
4119 		PM8001_MSG_DBG(pm8001_ha,
4120 			pm8001_printk("OPC_OUB_GPIO_EVENT\n"));
4121 		break;
4122 	case OPC_OUB_GENERAL_EVENT:
4123 		PM8001_MSG_DBG(pm8001_ha,
4124 			pm8001_printk("OPC_OUB_GENERAL_EVENT\n"));
4125 		pm8001_mpi_general_event(pm8001_ha, piomb);
4126 		break;
4127 	case OPC_OUB_SSP_ABORT_RSP:
4128 		PM8001_MSG_DBG(pm8001_ha,
4129 			pm8001_printk("OPC_OUB_SSP_ABORT_RSP\n"));
4130 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4131 		break;
4132 	case OPC_OUB_SATA_ABORT_RSP:
4133 		PM8001_MSG_DBG(pm8001_ha,
4134 			pm8001_printk("OPC_OUB_SATA_ABORT_RSP\n"));
4135 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4136 		break;
4137 	case OPC_OUB_SAS_DIAG_MODE_START_END:
4138 		PM8001_MSG_DBG(pm8001_ha,
4139 			pm8001_printk("OPC_OUB_SAS_DIAG_MODE_START_END\n"));
4140 		break;
4141 	case OPC_OUB_SAS_DIAG_EXECUTE:
4142 		PM8001_MSG_DBG(pm8001_ha,
4143 			pm8001_printk("OPC_OUB_SAS_DIAG_EXECUTE\n"));
4144 		break;
4145 	case OPC_OUB_GET_TIME_STAMP:
4146 		PM8001_MSG_DBG(pm8001_ha,
4147 			pm8001_printk("OPC_OUB_GET_TIME_STAMP\n"));
4148 		break;
4149 	case OPC_OUB_SAS_HW_EVENT_ACK:
4150 		PM8001_MSG_DBG(pm8001_ha,
4151 			pm8001_printk("OPC_OUB_SAS_HW_EVENT_ACK\n"));
4152 		break;
4153 	case OPC_OUB_PORT_CONTROL:
4154 		PM8001_MSG_DBG(pm8001_ha,
4155 			pm8001_printk("OPC_OUB_PORT_CONTROL\n"));
4156 		break;
4157 	case OPC_OUB_SMP_ABORT_RSP:
4158 		PM8001_MSG_DBG(pm8001_ha,
4159 			pm8001_printk("OPC_OUB_SMP_ABORT_RSP\n"));
4160 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4161 		break;
4162 	case OPC_OUB_GET_NVMD_DATA:
4163 		PM8001_MSG_DBG(pm8001_ha,
4164 			pm8001_printk("OPC_OUB_GET_NVMD_DATA\n"));
4165 		pm8001_mpi_get_nvmd_resp(pm8001_ha, piomb);
4166 		break;
4167 	case OPC_OUB_SET_NVMD_DATA:
4168 		PM8001_MSG_DBG(pm8001_ha,
4169 			pm8001_printk("OPC_OUB_SET_NVMD_DATA\n"));
4170 		pm8001_mpi_set_nvmd_resp(pm8001_ha, piomb);
4171 		break;
4172 	case OPC_OUB_DEVICE_HANDLE_REMOVAL:
4173 		PM8001_MSG_DBG(pm8001_ha,
4174 			pm8001_printk("OPC_OUB_DEVICE_HANDLE_REMOVAL\n"));
4175 		break;
4176 	case OPC_OUB_SET_DEVICE_STATE:
4177 		PM8001_MSG_DBG(pm8001_ha,
4178 			pm8001_printk("OPC_OUB_SET_DEVICE_STATE\n"));
4179 		pm8001_mpi_set_dev_state_resp(pm8001_ha, piomb);
4180 		break;
4181 	case OPC_OUB_GET_DEVICE_STATE:
4182 		PM8001_MSG_DBG(pm8001_ha,
4183 			pm8001_printk("OPC_OUB_GET_DEVICE_STATE\n"));
4184 		break;
4185 	case OPC_OUB_SET_DEV_INFO:
4186 		PM8001_MSG_DBG(pm8001_ha,
4187 			pm8001_printk("OPC_OUB_SET_DEV_INFO\n"));
4188 		break;
4189 	case OPC_OUB_SAS_RE_INITIALIZE:
4190 		PM8001_MSG_DBG(pm8001_ha,
4191 			pm8001_printk("OPC_OUB_SAS_RE_INITIALIZE\n"));
4192 		break;
4193 	default:
4194 		PM8001_DEVIO_DBG(pm8001_ha,
4195 			pm8001_printk("Unknown outbound Queue IOMB OPC = %x\n",
4196 			opc));
4197 		break;
4198 	}
4199 }
4200 
4201 static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec)
4202 {
4203 	struct outbound_queue_table *circularQ;
4204 	void *pMsg1 = NULL;
4205 	u8 uninitialized_var(bc);
4206 	u32 ret = MPI_IO_STATUS_FAIL;
4207 	unsigned long flags;
4208 
4209 	spin_lock_irqsave(&pm8001_ha->lock, flags);
4210 	circularQ = &pm8001_ha->outbnd_q_tbl[vec];
4211 	do {
4212 		ret = pm8001_mpi_msg_consume(pm8001_ha, circularQ, &pMsg1, &bc);
4213 		if (MPI_IO_STATUS_SUCCESS == ret) {
4214 			/* process the outbound message */
4215 			process_one_iomb(pm8001_ha, (void *)(pMsg1 - 4));
4216 			/* free the message from the outbound circular buffer */
4217 			pm8001_mpi_msg_free_set(pm8001_ha, pMsg1,
4218 							circularQ, bc);
4219 		}
4220 		if (MPI_IO_STATUS_BUSY == ret) {
4221 			/* Update the producer index from SPC */
4222 			circularQ->producer_index =
4223 				cpu_to_le32(pm8001_read_32(circularQ->pi_virt));
4224 			if (le32_to_cpu(circularQ->producer_index) ==
4225 				circularQ->consumer_idx)
4226 				/* OQ is empty */
4227 				break;
4228 		}
4229 	} while (1);
4230 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
4231 	return ret;
4232 }
4233 
4234 /* DMA_... to our direction translation. */
4235 static const u8 data_dir_flags[] = {
4236 	[DMA_BIDIRECTIONAL]	= DATA_DIR_BYRECIPIENT,	/* UNSPECIFIED */
4237 	[DMA_TO_DEVICE]		= DATA_DIR_OUT,		/* OUTBOUND */
4238 	[DMA_FROM_DEVICE]	= DATA_DIR_IN,		/* INBOUND */
4239 	[DMA_NONE]		= DATA_DIR_NONE,	/* NO TRANSFER */
4240 };
4241 void
4242 pm8001_chip_make_sg(struct scatterlist *scatter, int nr, void *prd)
4243 {
4244 	int i;
4245 	struct scatterlist *sg;
4246 	struct pm8001_prd *buf_prd = prd;
4247 
4248 	for_each_sg(scatter, sg, nr, i) {
4249 		buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
4250 		buf_prd->im_len.len = cpu_to_le32(sg_dma_len(sg));
4251 		buf_prd->im_len.e = 0;
4252 		buf_prd++;
4253 	}
4254 }
4255 
4256 static void build_smp_cmd(u32 deviceID, __le32 hTag, struct smp_req *psmp_cmd)
4257 {
4258 	psmp_cmd->tag = hTag;
4259 	psmp_cmd->device_id = cpu_to_le32(deviceID);
4260 	psmp_cmd->len_ip_ir = cpu_to_le32(1|(1 << 1));
4261 }
4262 
4263 /**
4264  * pm8001_chip_smp_req - send a SMP task to FW
4265  * @pm8001_ha: our hba card information.
4266  * @ccb: the ccb information this request used.
4267  */
4268 static int pm8001_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
4269 	struct pm8001_ccb_info *ccb)
4270 {
4271 	int elem, rc;
4272 	struct sas_task *task = ccb->task;
4273 	struct domain_device *dev = task->dev;
4274 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4275 	struct scatterlist *sg_req, *sg_resp;
4276 	u32 req_len, resp_len;
4277 	struct smp_req smp_cmd;
4278 	u32 opc;
4279 	struct inbound_queue_table *circularQ;
4280 
4281 	memset(&smp_cmd, 0, sizeof(smp_cmd));
4282 	/*
4283 	 * DMA-map SMP request, response buffers
4284 	 */
4285 	sg_req = &task->smp_task.smp_req;
4286 	elem = dma_map_sg(pm8001_ha->dev, sg_req, 1, DMA_TO_DEVICE);
4287 	if (!elem)
4288 		return -ENOMEM;
4289 	req_len = sg_dma_len(sg_req);
4290 
4291 	sg_resp = &task->smp_task.smp_resp;
4292 	elem = dma_map_sg(pm8001_ha->dev, sg_resp, 1, DMA_FROM_DEVICE);
4293 	if (!elem) {
4294 		rc = -ENOMEM;
4295 		goto err_out;
4296 	}
4297 	resp_len = sg_dma_len(sg_resp);
4298 	/* must be in dwords */
4299 	if ((req_len & 0x3) || (resp_len & 0x3)) {
4300 		rc = -EINVAL;
4301 		goto err_out_2;
4302 	}
4303 
4304 	opc = OPC_INB_SMP_REQUEST;
4305 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4306 	smp_cmd.tag = cpu_to_le32(ccb->ccb_tag);
4307 	smp_cmd.long_smp_req.long_req_addr =
4308 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req));
4309 	smp_cmd.long_smp_req.long_req_size =
4310 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-4);
4311 	smp_cmd.long_smp_req.long_resp_addr =
4312 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_resp));
4313 	smp_cmd.long_smp_req.long_resp_size =
4314 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4);
4315 	build_smp_cmd(pm8001_dev->device_id, smp_cmd.tag, &smp_cmd);
4316 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc,
4317 			&smp_cmd, sizeof(smp_cmd), 0);
4318 	if (rc)
4319 		goto err_out_2;
4320 
4321 	return 0;
4322 
4323 err_out_2:
4324 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_resp, 1,
4325 			DMA_FROM_DEVICE);
4326 err_out:
4327 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_req, 1,
4328 			DMA_TO_DEVICE);
4329 	return rc;
4330 }
4331 
4332 /**
4333  * pm8001_chip_ssp_io_req - send a SSP task to FW
4334  * @pm8001_ha: our hba card information.
4335  * @ccb: the ccb information this request used.
4336  */
4337 static int pm8001_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
4338 	struct pm8001_ccb_info *ccb)
4339 {
4340 	struct sas_task *task = ccb->task;
4341 	struct domain_device *dev = task->dev;
4342 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4343 	struct ssp_ini_io_start_req ssp_cmd;
4344 	u32 tag = ccb->ccb_tag;
4345 	int ret;
4346 	u64 phys_addr;
4347 	struct inbound_queue_table *circularQ;
4348 	u32 opc = OPC_INB_SSPINIIOSTART;
4349 	memset(&ssp_cmd, 0, sizeof(ssp_cmd));
4350 	memcpy(ssp_cmd.ssp_iu.lun, task->ssp_task.LUN, 8);
4351 	ssp_cmd.dir_m_tlr =
4352 		cpu_to_le32(data_dir_flags[task->data_dir] << 8 | 0x0);/*0 for
4353 	SAS 1.1 compatible TLR*/
4354 	ssp_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4355 	ssp_cmd.device_id = cpu_to_le32(pm8001_dev->device_id);
4356 	ssp_cmd.tag = cpu_to_le32(tag);
4357 	if (task->ssp_task.enable_first_burst)
4358 		ssp_cmd.ssp_iu.efb_prio_attr |= 0x80;
4359 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_prio << 3);
4360 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_attr & 7);
4361 	memcpy(ssp_cmd.ssp_iu.cdb, task->ssp_task.cmd->cmnd,
4362 	       task->ssp_task.cmd->cmd_len);
4363 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4364 
4365 	/* fill in PRD (scatter/gather) table, if any */
4366 	if (task->num_scatter > 1) {
4367 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4368 		phys_addr = ccb->ccb_dma_handle +
4369 				offsetof(struct pm8001_ccb_info, buf_prd[0]);
4370 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(phys_addr));
4371 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(phys_addr));
4372 		ssp_cmd.esgl = cpu_to_le32(1<<31);
4373 	} else if (task->num_scatter == 1) {
4374 		u64 dma_addr = sg_dma_address(task->scatter);
4375 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(dma_addr));
4376 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(dma_addr));
4377 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4378 		ssp_cmd.esgl = 0;
4379 	} else if (task->num_scatter == 0) {
4380 		ssp_cmd.addr_low = 0;
4381 		ssp_cmd.addr_high = 0;
4382 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4383 		ssp_cmd.esgl = 0;
4384 	}
4385 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &ssp_cmd,
4386 			sizeof(ssp_cmd), 0);
4387 	return ret;
4388 }
4389 
4390 static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
4391 	struct pm8001_ccb_info *ccb)
4392 {
4393 	struct sas_task *task = ccb->task;
4394 	struct domain_device *dev = task->dev;
4395 	struct pm8001_device *pm8001_ha_dev = dev->lldd_dev;
4396 	u32 tag = ccb->ccb_tag;
4397 	int ret;
4398 	struct sata_start_req sata_cmd;
4399 	u32 hdr_tag, ncg_tag = 0;
4400 	u64 phys_addr;
4401 	u32 ATAP = 0x0;
4402 	u32 dir;
4403 	struct inbound_queue_table *circularQ;
4404 	unsigned long flags;
4405 	u32  opc = OPC_INB_SATA_HOST_OPSTART;
4406 	memset(&sata_cmd, 0, sizeof(sata_cmd));
4407 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4408 	if (task->data_dir == DMA_NONE) {
4409 		ATAP = 0x04;  /* no data*/
4410 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("no data\n"));
4411 	} else if (likely(!task->ata_task.device_control_reg_update)) {
4412 		if (task->ata_task.dma_xfer) {
4413 			ATAP = 0x06; /* DMA */
4414 			PM8001_IO_DBG(pm8001_ha, pm8001_printk("DMA\n"));
4415 		} else {
4416 			ATAP = 0x05; /* PIO*/
4417 			PM8001_IO_DBG(pm8001_ha, pm8001_printk("PIO\n"));
4418 		}
4419 		if (task->ata_task.use_ncq &&
4420 			dev->sata_dev.class != ATA_DEV_ATAPI) {
4421 			ATAP = 0x07; /* FPDMA */
4422 			PM8001_IO_DBG(pm8001_ha, pm8001_printk("FPDMA\n"));
4423 		}
4424 	}
4425 	if (task->ata_task.use_ncq && pm8001_get_ncq_tag(task, &hdr_tag)) {
4426 		task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
4427 		ncg_tag = hdr_tag;
4428 	}
4429 	dir = data_dir_flags[task->data_dir] << 8;
4430 	sata_cmd.tag = cpu_to_le32(tag);
4431 	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
4432 	sata_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4433 	sata_cmd.ncqtag_atap_dir_m =
4434 		cpu_to_le32(((ncg_tag & 0xff)<<16)|((ATAP & 0x3f) << 10) | dir);
4435 	sata_cmd.sata_fis = task->ata_task.fis;
4436 	if (likely(!task->ata_task.device_control_reg_update))
4437 		sata_cmd.sata_fis.flags |= 0x80;/* C=1: update ATA cmd reg */
4438 	sata_cmd.sata_fis.flags &= 0xF0;/* PM_PORT field shall be 0 */
4439 	/* fill in PRD (scatter/gather) table, if any */
4440 	if (task->num_scatter > 1) {
4441 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4442 		phys_addr = ccb->ccb_dma_handle +
4443 				offsetof(struct pm8001_ccb_info, buf_prd[0]);
4444 		sata_cmd.addr_low = lower_32_bits(phys_addr);
4445 		sata_cmd.addr_high = upper_32_bits(phys_addr);
4446 		sata_cmd.esgl = cpu_to_le32(1 << 31);
4447 	} else if (task->num_scatter == 1) {
4448 		u64 dma_addr = sg_dma_address(task->scatter);
4449 		sata_cmd.addr_low = lower_32_bits(dma_addr);
4450 		sata_cmd.addr_high = upper_32_bits(dma_addr);
4451 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4452 		sata_cmd.esgl = 0;
4453 	} else if (task->num_scatter == 0) {
4454 		sata_cmd.addr_low = 0;
4455 		sata_cmd.addr_high = 0;
4456 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4457 		sata_cmd.esgl = 0;
4458 	}
4459 
4460 	/* Check for read log for failed drive and return */
4461 	if (sata_cmd.sata_fis.command == 0x2f) {
4462 		if (((pm8001_ha_dev->id & NCQ_READ_LOG_FLAG) ||
4463 			(pm8001_ha_dev->id & NCQ_ABORT_ALL_FLAG) ||
4464 			(pm8001_ha_dev->id & NCQ_2ND_RLE_FLAG))) {
4465 			struct task_status_struct *ts;
4466 
4467 			pm8001_ha_dev->id &= 0xDFFFFFFF;
4468 			ts = &task->task_status;
4469 
4470 			spin_lock_irqsave(&task->task_state_lock, flags);
4471 			ts->resp = SAS_TASK_COMPLETE;
4472 			ts->stat = SAM_STAT_GOOD;
4473 			task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
4474 			task->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
4475 			task->task_state_flags |= SAS_TASK_STATE_DONE;
4476 			if (unlikely((task->task_state_flags &
4477 					SAS_TASK_STATE_ABORTED))) {
4478 				spin_unlock_irqrestore(&task->task_state_lock,
4479 							flags);
4480 				PM8001_FAIL_DBG(pm8001_ha,
4481 					pm8001_printk("task 0x%p resp 0x%x "
4482 					" stat 0x%x but aborted by upper layer "
4483 					"\n", task, ts->resp, ts->stat));
4484 				pm8001_ccb_task_free(pm8001_ha, task, ccb, tag);
4485 			} else {
4486 				spin_unlock_irqrestore(&task->task_state_lock,
4487 							flags);
4488 				pm8001_ccb_task_free_done(pm8001_ha, task,
4489 								ccb, tag);
4490 				return 0;
4491 			}
4492 		}
4493 	}
4494 
4495 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
4496 			sizeof(sata_cmd), 0);
4497 	return ret;
4498 }
4499 
4500 /**
4501  * pm8001_chip_phy_start_req - start phy via PHY_START COMMAND
4502  * @pm8001_ha: our hba card information.
4503  * @num: the inbound queue number
4504  * @phy_id: the phy id which we wanted to start up.
4505  */
4506 static int
4507 pm8001_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id)
4508 {
4509 	struct phy_start_req payload;
4510 	struct inbound_queue_table *circularQ;
4511 	int ret;
4512 	u32 tag = 0x01;
4513 	u32 opcode = OPC_INB_PHYSTART;
4514 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4515 	memset(&payload, 0, sizeof(payload));
4516 	payload.tag = cpu_to_le32(tag);
4517 	/*
4518 	 ** [0:7]   PHY Identifier
4519 	 ** [8:11]  link rate 1.5G, 3G, 6G
4520 	 ** [12:13] link mode 01b SAS mode; 10b SATA mode; 11b both
4521 	 ** [14]    0b disable spin up hold; 1b enable spin up hold
4522 	 */
4523 	payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE |
4524 		LINKMODE_AUTO |	LINKRATE_15 |
4525 		LINKRATE_30 | LINKRATE_60 | phy_id);
4526 	payload.sas_identify.dev_type = SAS_END_DEVICE;
4527 	payload.sas_identify.initiator_bits = SAS_PROTOCOL_ALL;
4528 	memcpy(payload.sas_identify.sas_addr,
4529 		pm8001_ha->sas_addr, SAS_ADDR_SIZE);
4530 	payload.sas_identify.phy_id = phy_id;
4531 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
4532 			sizeof(payload), 0);
4533 	return ret;
4534 }
4535 
4536 /**
4537  * pm8001_chip_phy_stop_req - start phy via PHY_STOP COMMAND
4538  * @pm8001_ha: our hba card information.
4539  * @num: the inbound queue number
4540  * @phy_id: the phy id which we wanted to start up.
4541  */
4542 static int pm8001_chip_phy_stop_req(struct pm8001_hba_info *pm8001_ha,
4543 				    u8 phy_id)
4544 {
4545 	struct phy_stop_req payload;
4546 	struct inbound_queue_table *circularQ;
4547 	int ret;
4548 	u32 tag = 0x01;
4549 	u32 opcode = OPC_INB_PHYSTOP;
4550 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4551 	memset(&payload, 0, sizeof(payload));
4552 	payload.tag = cpu_to_le32(tag);
4553 	payload.phy_id = cpu_to_le32(phy_id);
4554 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
4555 			sizeof(payload), 0);
4556 	return ret;
4557 }
4558 
4559 /**
4560  * see comments on pm8001_mpi_reg_resp.
4561  */
4562 static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
4563 	struct pm8001_device *pm8001_dev, u32 flag)
4564 {
4565 	struct reg_dev_req payload;
4566 	u32	opc;
4567 	u32 stp_sspsmp_sata = 0x4;
4568 	struct inbound_queue_table *circularQ;
4569 	u32 linkrate, phy_id;
4570 	int rc, tag = 0xdeadbeef;
4571 	struct pm8001_ccb_info *ccb;
4572 	u8 retryFlag = 0x1;
4573 	u16 firstBurstSize = 0;
4574 	u16 ITNT = 2000;
4575 	struct domain_device *dev = pm8001_dev->sas_device;
4576 	struct domain_device *parent_dev = dev->parent;
4577 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4578 
4579 	memset(&payload, 0, sizeof(payload));
4580 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
4581 	if (rc)
4582 		return rc;
4583 	ccb = &pm8001_ha->ccb_info[tag];
4584 	ccb->device = pm8001_dev;
4585 	ccb->ccb_tag = tag;
4586 	payload.tag = cpu_to_le32(tag);
4587 	if (flag == 1)
4588 		stp_sspsmp_sata = 0x02; /*direct attached sata */
4589 	else {
4590 		if (pm8001_dev->dev_type == SAS_SATA_DEV)
4591 			stp_sspsmp_sata = 0x00; /* stp*/
4592 		else if (pm8001_dev->dev_type == SAS_END_DEVICE ||
4593 			pm8001_dev->dev_type == SAS_EDGE_EXPANDER_DEVICE ||
4594 			pm8001_dev->dev_type == SAS_FANOUT_EXPANDER_DEVICE)
4595 			stp_sspsmp_sata = 0x01; /*ssp or smp*/
4596 	}
4597 	if (parent_dev && dev_is_expander(parent_dev->dev_type))
4598 		phy_id = parent_dev->ex_dev.ex_phy->phy_id;
4599 	else
4600 		phy_id = pm8001_dev->attached_phy;
4601 	opc = OPC_INB_REG_DEV;
4602 	linkrate = (pm8001_dev->sas_device->linkrate < dev->port->linkrate) ?
4603 			pm8001_dev->sas_device->linkrate : dev->port->linkrate;
4604 	payload.phyid_portid =
4605 		cpu_to_le32(((pm8001_dev->sas_device->port->id) & 0x0F) |
4606 		((phy_id & 0x0F) << 4));
4607 	payload.dtype_dlr_retry = cpu_to_le32((retryFlag & 0x01) |
4608 		((linkrate & 0x0F) * 0x1000000) |
4609 		((stp_sspsmp_sata & 0x03) * 0x10000000));
4610 	payload.firstburstsize_ITNexustimeout =
4611 		cpu_to_le32(ITNT | (firstBurstSize * 0x10000));
4612 	memcpy(payload.sas_addr, pm8001_dev->sas_device->sas_addr,
4613 		SAS_ADDR_SIZE);
4614 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4615 			sizeof(payload), 0);
4616 	return rc;
4617 }
4618 
4619 /**
4620  * see comments on pm8001_mpi_reg_resp.
4621  */
4622 int pm8001_chip_dereg_dev_req(struct pm8001_hba_info *pm8001_ha,
4623 	u32 device_id)
4624 {
4625 	struct dereg_dev_req payload;
4626 	u32 opc = OPC_INB_DEREG_DEV_HANDLE;
4627 	int ret;
4628 	struct inbound_queue_table *circularQ;
4629 
4630 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4631 	memset(&payload, 0, sizeof(payload));
4632 	payload.tag = cpu_to_le32(1);
4633 	payload.device_id = cpu_to_le32(device_id);
4634 	PM8001_MSG_DBG(pm8001_ha,
4635 		pm8001_printk("unregister device device_id = %d\n", device_id));
4636 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4637 			sizeof(payload), 0);
4638 	return ret;
4639 }
4640 
4641 /**
4642  * pm8001_chip_phy_ctl_req - support the local phy operation
4643  * @pm8001_ha: our hba card information.
4644  * @num: the inbound queue number
4645  * @phy_id: the phy id which we wanted to operate
4646  * @phy_op:
4647  */
4648 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
4649 	u32 phyId, u32 phy_op)
4650 {
4651 	struct local_phy_ctl_req payload;
4652 	struct inbound_queue_table *circularQ;
4653 	int ret;
4654 	u32 opc = OPC_INB_LOCAL_PHY_CONTROL;
4655 	memset(&payload, 0, sizeof(payload));
4656 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4657 	payload.tag = cpu_to_le32(1);
4658 	payload.phyop_phyid =
4659 		cpu_to_le32(((phy_op & 0xff) << 8) | (phyId & 0x0F));
4660 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4661 			sizeof(payload), 0);
4662 	return ret;
4663 }
4664 
4665 static u32 pm8001_chip_is_our_interrupt(struct pm8001_hba_info *pm8001_ha)
4666 {
4667 #ifdef PM8001_USE_MSIX
4668 	return 1;
4669 #else
4670 	u32 value;
4671 
4672 	value = pm8001_cr32(pm8001_ha, 0, MSGU_ODR);
4673 	if (value)
4674 		return 1;
4675 	return 0;
4676 #endif
4677 }
4678 
4679 /**
4680  * pm8001_chip_isr - PM8001 isr handler.
4681  * @pm8001_ha: our hba card information.
4682  * @irq: irq number.
4683  * @stat: stat.
4684  */
4685 static irqreturn_t
4686 pm8001_chip_isr(struct pm8001_hba_info *pm8001_ha, u8 vec)
4687 {
4688 	pm8001_chip_interrupt_disable(pm8001_ha, vec);
4689 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
4690 		"irq vec %d, ODMR:0x%x\n",
4691 		vec, pm8001_cr32(pm8001_ha, 0, 0x30)));
4692 	process_oq(pm8001_ha, vec);
4693 	pm8001_chip_interrupt_enable(pm8001_ha, vec);
4694 	return IRQ_HANDLED;
4695 }
4696 
4697 static int send_task_abort(struct pm8001_hba_info *pm8001_ha, u32 opc,
4698 	u32 dev_id, u8 flag, u32 task_tag, u32 cmd_tag)
4699 {
4700 	struct task_abort_req task_abort;
4701 	struct inbound_queue_table *circularQ;
4702 	int ret;
4703 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4704 	memset(&task_abort, 0, sizeof(task_abort));
4705 	if (ABORT_SINGLE == (flag & ABORT_MASK)) {
4706 		task_abort.abort_all = 0;
4707 		task_abort.device_id = cpu_to_le32(dev_id);
4708 		task_abort.tag_to_abort = cpu_to_le32(task_tag);
4709 		task_abort.tag = cpu_to_le32(cmd_tag);
4710 	} else if (ABORT_ALL == (flag & ABORT_MASK)) {
4711 		task_abort.abort_all = cpu_to_le32(1);
4712 		task_abort.device_id = cpu_to_le32(dev_id);
4713 		task_abort.tag = cpu_to_le32(cmd_tag);
4714 	}
4715 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
4716 			sizeof(task_abort), 0);
4717 	return ret;
4718 }
4719 
4720 /**
4721  * pm8001_chip_abort_task - SAS abort task when error or exception happened.
4722  * @task: the task we wanted to aborted.
4723  * @flag: the abort flag.
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  */
4963 int
4964 pm8001_chip_fw_flash_update_build(struct pm8001_hba_info *pm8001_ha,
4965 	void *fw_flash_updata_info, u32 tag)
4966 {
4967 	struct fw_flash_Update_req payload;
4968 	struct fw_flash_updata_info *info;
4969 	struct inbound_queue_table *circularQ;
4970 	int ret;
4971 	u32 opc = OPC_INB_FW_FLASH_UPDATE;
4972 
4973 	memset(&payload, 0, sizeof(struct fw_flash_Update_req));
4974 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4975 	info = fw_flash_updata_info;
4976 	payload.tag = cpu_to_le32(tag);
4977 	payload.cur_image_len = cpu_to_le32(info->cur_image_len);
4978 	payload.cur_image_offset = cpu_to_le32(info->cur_image_offset);
4979 	payload.total_image_len = cpu_to_le32(info->total_image_len);
4980 	payload.len = info->sgl.im_len.len ;
4981 	payload.sgl_addr_lo =
4982 		cpu_to_le32(lower_32_bits(le64_to_cpu(info->sgl.addr)));
4983 	payload.sgl_addr_hi =
4984 		cpu_to_le32(upper_32_bits(le64_to_cpu(info->sgl.addr)));
4985 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4986 			sizeof(payload), 0);
4987 	return ret;
4988 }
4989 
4990 int
4991 pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
4992 	void *payload)
4993 {
4994 	struct fw_flash_updata_info flash_update_info;
4995 	struct fw_control_info *fw_control;
4996 	struct fw_control_ex *fw_control_context;
4997 	int rc;
4998 	u32 tag;
4999 	struct pm8001_ccb_info *ccb;
5000 	void *buffer = pm8001_ha->memoryMap.region[FW_FLASH].virt_ptr;
5001 	dma_addr_t phys_addr = pm8001_ha->memoryMap.region[FW_FLASH].phys_addr;
5002 	struct pm8001_ioctl_payload *ioctl_payload = payload;
5003 
5004 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
5005 	if (!fw_control_context)
5006 		return -ENOMEM;
5007 	fw_control = (struct fw_control_info *)&ioctl_payload->func_specific;
5008 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
5009 		"dma fw_control context input length :%x\n", fw_control->len));
5010 	memcpy(buffer, fw_control->buffer, fw_control->len);
5011 	flash_update_info.sgl.addr = cpu_to_le64(phys_addr);
5012 	flash_update_info.sgl.im_len.len = cpu_to_le32(fw_control->len);
5013 	flash_update_info.sgl.im_len.e = 0;
5014 	flash_update_info.cur_image_offset = fw_control->offset;
5015 	flash_update_info.cur_image_len = fw_control->len;
5016 	flash_update_info.total_image_len = fw_control->size;
5017 	fw_control_context->fw_control = fw_control;
5018 	fw_control_context->virtAddr = buffer;
5019 	fw_control_context->phys_addr = phys_addr;
5020 	fw_control_context->len = fw_control->len;
5021 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
5022 	if (rc) {
5023 		kfree(fw_control_context);
5024 		return -EBUSY;
5025 	}
5026 	ccb = &pm8001_ha->ccb_info[tag];
5027 	ccb->fw_control_context = fw_control_context;
5028 	ccb->ccb_tag = tag;
5029 	rc = pm8001_chip_fw_flash_update_build(pm8001_ha, &flash_update_info,
5030 		tag);
5031 	return rc;
5032 }
5033 
5034 ssize_t
5035 pm8001_get_gsm_dump(struct device *cdev, u32 length, char *buf)
5036 {
5037 	u32 value, rem, offset = 0, bar = 0;
5038 	u32 index, work_offset, dw_length;
5039 	u32 shift_value, gsm_base, gsm_dump_offset;
5040 	char *direct_data;
5041 	struct Scsi_Host *shost = class_to_shost(cdev);
5042 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
5043 	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
5044 
5045 	direct_data = buf;
5046 	gsm_dump_offset = pm8001_ha->fatal_forensic_shift_offset;
5047 
5048 	/* check max is 1 Mbytes */
5049 	if ((length > 0x100000) || (gsm_dump_offset & 3) ||
5050 		((gsm_dump_offset + length) > 0x1000000))
5051 			return -EINVAL;
5052 
5053 	if (pm8001_ha->chip_id == chip_8001)
5054 		bar = 2;
5055 	else
5056 		bar = 1;
5057 
5058 	work_offset = gsm_dump_offset & 0xFFFF0000;
5059 	offset = gsm_dump_offset & 0x0000FFFF;
5060 	gsm_dump_offset = work_offset;
5061 	/* adjust length to dword boundary */
5062 	rem = length & 3;
5063 	dw_length = length >> 2;
5064 
5065 	for (index = 0; index < dw_length; index++) {
5066 		if ((work_offset + offset) & 0xFFFF0000) {
5067 			if (pm8001_ha->chip_id == chip_8001)
5068 				shift_value = ((gsm_dump_offset + offset) &
5069 						SHIFT_REG_64K_MASK);
5070 			else
5071 				shift_value = (((gsm_dump_offset + offset) &
5072 						SHIFT_REG_64K_MASK) >>
5073 						SHIFT_REG_BIT_SHIFT);
5074 
5075 			if (pm8001_ha->chip_id == chip_8001) {
5076 				gsm_base = GSM_BASE;
5077 				if (-1 == pm8001_bar4_shift(pm8001_ha,
5078 						(gsm_base + shift_value)))
5079 					return -EIO;
5080 			} else {
5081 				gsm_base = 0;
5082 				if (-1 == pm80xx_bar4_shift(pm8001_ha,
5083 						(gsm_base + shift_value)))
5084 					return -EIO;
5085 			}
5086 			gsm_dump_offset = (gsm_dump_offset + offset) &
5087 						0xFFFF0000;
5088 			work_offset = 0;
5089 			offset = offset & 0x0000FFFF;
5090 		}
5091 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
5092 						0x0000FFFF);
5093 		direct_data += sprintf(direct_data, "%08x ", value);
5094 		offset += 4;
5095 	}
5096 	if (rem != 0) {
5097 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
5098 						0x0000FFFF);
5099 		/* xfr for non_dw */
5100 		direct_data += sprintf(direct_data, "%08x ", value);
5101 	}
5102 	/* Shift back to BAR4 original address */
5103 	if (-1 == pm8001_bar4_shift(pm8001_ha, 0))
5104 			return -EIO;
5105 	pm8001_ha->fatal_forensic_shift_offset += 1024;
5106 
5107 	if (pm8001_ha->fatal_forensic_shift_offset >= 0x100000)
5108 		pm8001_ha->fatal_forensic_shift_offset = 0;
5109 	return direct_data - buf;
5110 }
5111 
5112 int
5113 pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
5114 	struct pm8001_device *pm8001_dev, u32 state)
5115 {
5116 	struct set_dev_state_req payload;
5117 	struct inbound_queue_table *circularQ;
5118 	struct pm8001_ccb_info *ccb;
5119 	int rc;
5120 	u32 tag;
5121 	u32 opc = OPC_INB_SET_DEVICE_STATE;
5122 	memset(&payload, 0, sizeof(payload));
5123 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
5124 	if (rc)
5125 		return -1;
5126 	ccb = &pm8001_ha->ccb_info[tag];
5127 	ccb->ccb_tag = tag;
5128 	ccb->device = pm8001_dev;
5129 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
5130 	payload.tag = cpu_to_le32(tag);
5131 	payload.device_id = cpu_to_le32(pm8001_dev->device_id);
5132 	payload.nds = cpu_to_le32(state);
5133 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
5134 			sizeof(payload), 0);
5135 	return rc;
5136 
5137 }
5138 
5139 static int
5140 pm8001_chip_sas_re_initialization(struct pm8001_hba_info *pm8001_ha)
5141 {
5142 	struct sas_re_initialization_req payload;
5143 	struct inbound_queue_table *circularQ;
5144 	struct pm8001_ccb_info *ccb;
5145 	int rc;
5146 	u32 tag;
5147 	u32 opc = OPC_INB_SAS_RE_INITIALIZE;
5148 	memset(&payload, 0, sizeof(payload));
5149 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
5150 	if (rc)
5151 		return -ENOMEM;
5152 	ccb = &pm8001_ha->ccb_info[tag];
5153 	ccb->ccb_tag = tag;
5154 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
5155 	payload.tag = cpu_to_le32(tag);
5156 	payload.SSAHOLT = cpu_to_le32(0xd << 25);
5157 	payload.sata_hol_tmo = cpu_to_le32(80);
5158 	payload.open_reject_cmdretries_data_retries = cpu_to_le32(0xff00ff);
5159 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
5160 			sizeof(payload), 0);
5161 	if (rc)
5162 		pm8001_tag_free(pm8001_ha, tag);
5163 	return rc;
5164 
5165 }
5166 
5167 const struct pm8001_dispatch pm8001_8001_dispatch = {
5168 	.name			= "pmc8001",
5169 	.chip_init		= pm8001_chip_init,
5170 	.chip_soft_rst		= pm8001_chip_soft_rst,
5171 	.chip_rst		= pm8001_hw_chip_rst,
5172 	.chip_iounmap		= pm8001_chip_iounmap,
5173 	.isr			= pm8001_chip_isr,
5174 	.is_our_interrupt	= pm8001_chip_is_our_interrupt,
5175 	.isr_process_oq		= process_oq,
5176 	.interrupt_enable 	= pm8001_chip_interrupt_enable,
5177 	.interrupt_disable	= pm8001_chip_interrupt_disable,
5178 	.make_prd		= pm8001_chip_make_sg,
5179 	.smp_req		= pm8001_chip_smp_req,
5180 	.ssp_io_req		= pm8001_chip_ssp_io_req,
5181 	.sata_req		= pm8001_chip_sata_req,
5182 	.phy_start_req		= pm8001_chip_phy_start_req,
5183 	.phy_stop_req		= pm8001_chip_phy_stop_req,
5184 	.reg_dev_req		= pm8001_chip_reg_dev_req,
5185 	.dereg_dev_req		= pm8001_chip_dereg_dev_req,
5186 	.phy_ctl_req		= pm8001_chip_phy_ctl_req,
5187 	.task_abort		= pm8001_chip_abort_task,
5188 	.ssp_tm_req		= pm8001_chip_ssp_tm_req,
5189 	.get_nvmd_req		= pm8001_chip_get_nvmd_req,
5190 	.set_nvmd_req		= pm8001_chip_set_nvmd_req,
5191 	.fw_flash_update_req	= pm8001_chip_fw_flash_update_req,
5192 	.set_dev_state_req	= pm8001_chip_set_dev_state_req,
5193 	.sas_re_init_req	= pm8001_chip_sas_re_initialization,
5194 };
5195