xref: /openbmc/linux/drivers/scsi/pm8001/pm8001_hwi.c (revision 6df696cd)
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  #include "pm80xx_tracepoints.h"
46 
47 /**
48  * read_main_config_table - read the configure table and save it.
49  * @pm8001_ha: our hba card information
50  */
51 static void read_main_config_table(struct pm8001_hba_info *pm8001_ha)
52 {
53 	void __iomem *address = pm8001_ha->main_cfg_tbl_addr;
54 	pm8001_ha->main_cfg_tbl.pm8001_tbl.signature	=
55 				pm8001_mr32(address, 0x00);
56 	pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev =
57 				pm8001_mr32(address, 0x04);
58 	pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev	=
59 				pm8001_mr32(address, 0x08);
60 	pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io	=
61 				pm8001_mr32(address, 0x0C);
62 	pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl	=
63 				pm8001_mr32(address, 0x10);
64 	pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag =
65 				pm8001_mr32(address, 0x14);
66 	pm8001_ha->main_cfg_tbl.pm8001_tbl.gst_offset	=
67 				pm8001_mr32(address, 0x18);
68 	pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_queue_offset =
69 		pm8001_mr32(address, MAIN_IBQ_OFFSET);
70 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_queue_offset =
71 		pm8001_mr32(address, MAIN_OBQ_OFFSET);
72 	pm8001_ha->main_cfg_tbl.pm8001_tbl.hda_mode_flag	=
73 		pm8001_mr32(address, MAIN_HDA_FLAGS_OFFSET);
74 
75 	/* read analog Setting offset from the configuration table */
76 	pm8001_ha->main_cfg_tbl.pm8001_tbl.anolog_setup_table_offset =
77 		pm8001_mr32(address, MAIN_ANALOG_SETUP_OFFSET);
78 
79 	/* read Error Dump Offset and Length */
80 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_offset0 =
81 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP0_OFFSET);
82 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_length0 =
83 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP0_LENGTH);
84 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_offset1 =
85 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP1_OFFSET);
86 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_length1 =
87 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP1_LENGTH);
88 }
89 
90 /**
91  * read_general_status_table - read the general status table and save it.
92  * @pm8001_ha: our hba card information
93  */
94 static void read_general_status_table(struct pm8001_hba_info *pm8001_ha)
95 {
96 	void __iomem *address = pm8001_ha->general_stat_tbl_addr;
97 	pm8001_ha->gs_tbl.pm8001_tbl.gst_len_mpistate	=
98 				pm8001_mr32(address, 0x00);
99 	pm8001_ha->gs_tbl.pm8001_tbl.iq_freeze_state0	=
100 				pm8001_mr32(address, 0x04);
101 	pm8001_ha->gs_tbl.pm8001_tbl.iq_freeze_state1	=
102 				pm8001_mr32(address, 0x08);
103 	pm8001_ha->gs_tbl.pm8001_tbl.msgu_tcnt		=
104 				pm8001_mr32(address, 0x0C);
105 	pm8001_ha->gs_tbl.pm8001_tbl.iop_tcnt		=
106 				pm8001_mr32(address, 0x10);
107 	pm8001_ha->gs_tbl.pm8001_tbl.rsvd		=
108 				pm8001_mr32(address, 0x14);
109 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[0]	=
110 				pm8001_mr32(address, 0x18);
111 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[1]	=
112 				pm8001_mr32(address, 0x1C);
113 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[2]	=
114 				pm8001_mr32(address, 0x20);
115 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[3]	=
116 				pm8001_mr32(address, 0x24);
117 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[4]	=
118 				pm8001_mr32(address, 0x28);
119 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[5]	=
120 				pm8001_mr32(address, 0x2C);
121 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[6]	=
122 				pm8001_mr32(address, 0x30);
123 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[7]	=
124 				pm8001_mr32(address, 0x34);
125 	pm8001_ha->gs_tbl.pm8001_tbl.gpio_input_val	=
126 				pm8001_mr32(address, 0x38);
127 	pm8001_ha->gs_tbl.pm8001_tbl.rsvd1[0]		=
128 				pm8001_mr32(address, 0x3C);
129 	pm8001_ha->gs_tbl.pm8001_tbl.rsvd1[1]		=
130 				pm8001_mr32(address, 0x40);
131 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[0]	=
132 				pm8001_mr32(address, 0x44);
133 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[1]	=
134 				pm8001_mr32(address, 0x48);
135 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[2]	=
136 				pm8001_mr32(address, 0x4C);
137 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[3]	=
138 				pm8001_mr32(address, 0x50);
139 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[4]	=
140 				pm8001_mr32(address, 0x54);
141 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[5]	=
142 				pm8001_mr32(address, 0x58);
143 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[6]	=
144 				pm8001_mr32(address, 0x5C);
145 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[7]	=
146 				pm8001_mr32(address, 0x60);
147 }
148 
149 /**
150  * read_inbnd_queue_table - read the inbound queue table and save it.
151  * @pm8001_ha: our hba card information
152  */
153 static void read_inbnd_queue_table(struct pm8001_hba_info *pm8001_ha)
154 {
155 	int i;
156 	void __iomem *address = pm8001_ha->inbnd_q_tbl_addr;
157 	for (i = 0; i < PM8001_MAX_INB_NUM; i++) {
158 		u32 offset = i * 0x20;
159 		pm8001_ha->inbnd_q_tbl[i].pi_pci_bar =
160 		      get_pci_bar_index(pm8001_mr32(address, (offset + 0x14)));
161 		pm8001_ha->inbnd_q_tbl[i].pi_offset =
162 			pm8001_mr32(address, (offset + 0x18));
163 	}
164 }
165 
166 /**
167  * read_outbnd_queue_table - read the outbound queue table and save it.
168  * @pm8001_ha: our hba card information
169  */
170 static void read_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha)
171 {
172 	int i;
173 	void __iomem *address = pm8001_ha->outbnd_q_tbl_addr;
174 	for (i = 0; i < PM8001_MAX_OUTB_NUM; i++) {
175 		u32 offset = i * 0x24;
176 		pm8001_ha->outbnd_q_tbl[i].ci_pci_bar =
177 		      get_pci_bar_index(pm8001_mr32(address, (offset + 0x14)));
178 		pm8001_ha->outbnd_q_tbl[i].ci_offset =
179 			pm8001_mr32(address, (offset + 0x18));
180 	}
181 }
182 
183 /**
184  * init_default_table_values - init the default table.
185  * @pm8001_ha: our hba card information
186  */
187 static void init_default_table_values(struct pm8001_hba_info *pm8001_ha)
188 {
189 	int i;
190 	u32 offsetib, offsetob;
191 	void __iomem *addressib = pm8001_ha->inbnd_q_tbl_addr;
192 	void __iomem *addressob = pm8001_ha->outbnd_q_tbl_addr;
193 	u32 ib_offset = pm8001_ha->ib_offset;
194 	u32 ob_offset = pm8001_ha->ob_offset;
195 	u32 ci_offset = pm8001_ha->ci_offset;
196 	u32 pi_offset = pm8001_ha->pi_offset;
197 
198 	pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_q_nppd_hppd		= 0;
199 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid0_3	= 0;
200 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid4_7	= 0;
201 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid0_3	= 0;
202 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid4_7	= 0;
203 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ITNexus_event_pid0_3 =
204 									 0;
205 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ITNexus_event_pid4_7 =
206 									 0;
207 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ssp_event_pid0_3 = 0;
208 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ssp_event_pid4_7 = 0;
209 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_smp_event_pid0_3 = 0;
210 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_smp_event_pid4_7 = 0;
211 
212 	pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_event_log_addr		=
213 		pm8001_ha->memoryMap.region[AAP1].phys_addr_hi;
214 	pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_event_log_addr		=
215 		pm8001_ha->memoryMap.region[AAP1].phys_addr_lo;
216 	pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_size		=
217 		PM8001_EVENT_LOG_SIZE;
218 	pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_option		= 0x01;
219 	pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_iop_event_log_addr	=
220 		pm8001_ha->memoryMap.region[IOP].phys_addr_hi;
221 	pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_iop_event_log_addr	=
222 		pm8001_ha->memoryMap.region[IOP].phys_addr_lo;
223 	pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_size		=
224 		PM8001_EVENT_LOG_SIZE;
225 	pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_option		= 0x01;
226 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_interrupt		= 0x01;
227 	for (i = 0; i < pm8001_ha->max_q_num; i++) {
228 		pm8001_ha->inbnd_q_tbl[i].element_pri_size_cnt	=
229 			PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x00<<30);
230 		pm8001_ha->inbnd_q_tbl[i].upper_base_addr	=
231 			pm8001_ha->memoryMap.region[ib_offset + i].phys_addr_hi;
232 		pm8001_ha->inbnd_q_tbl[i].lower_base_addr	=
233 		pm8001_ha->memoryMap.region[ib_offset + i].phys_addr_lo;
234 		pm8001_ha->inbnd_q_tbl[i].base_virt		=
235 		  (u8 *)pm8001_ha->memoryMap.region[ib_offset + i].virt_ptr;
236 		pm8001_ha->inbnd_q_tbl[i].total_length		=
237 			pm8001_ha->memoryMap.region[ib_offset + i].total_len;
238 		pm8001_ha->inbnd_q_tbl[i].ci_upper_base_addr	=
239 			pm8001_ha->memoryMap.region[ci_offset + i].phys_addr_hi;
240 		pm8001_ha->inbnd_q_tbl[i].ci_lower_base_addr	=
241 			pm8001_ha->memoryMap.region[ci_offset + i].phys_addr_lo;
242 		pm8001_ha->inbnd_q_tbl[i].ci_virt		=
243 			pm8001_ha->memoryMap.region[ci_offset + i].virt_ptr;
244 		pm8001_write_32(pm8001_ha->inbnd_q_tbl[i].ci_virt, 0, 0);
245 		offsetib = i * 0x20;
246 		pm8001_ha->inbnd_q_tbl[i].pi_pci_bar		=
247 			get_pci_bar_index(pm8001_mr32(addressib,
248 				(offsetib + 0x14)));
249 		pm8001_ha->inbnd_q_tbl[i].pi_offset		=
250 			pm8001_mr32(addressib, (offsetib + 0x18));
251 		pm8001_ha->inbnd_q_tbl[i].producer_idx		= 0;
252 		pm8001_ha->inbnd_q_tbl[i].consumer_index	= 0;
253 	}
254 	for (i = 0; i < pm8001_ha->max_q_num; i++) {
255 		pm8001_ha->outbnd_q_tbl[i].element_size_cnt	=
256 			PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x01<<30);
257 		pm8001_ha->outbnd_q_tbl[i].upper_base_addr	=
258 			pm8001_ha->memoryMap.region[ob_offset + i].phys_addr_hi;
259 		pm8001_ha->outbnd_q_tbl[i].lower_base_addr	=
260 			pm8001_ha->memoryMap.region[ob_offset + i].phys_addr_lo;
261 		pm8001_ha->outbnd_q_tbl[i].base_virt		=
262 		  (u8 *)pm8001_ha->memoryMap.region[ob_offset + i].virt_ptr;
263 		pm8001_ha->outbnd_q_tbl[i].total_length		=
264 			pm8001_ha->memoryMap.region[ob_offset + i].total_len;
265 		pm8001_ha->outbnd_q_tbl[i].pi_upper_base_addr	=
266 			pm8001_ha->memoryMap.region[pi_offset + i].phys_addr_hi;
267 		pm8001_ha->outbnd_q_tbl[i].pi_lower_base_addr	=
268 			pm8001_ha->memoryMap.region[pi_offset + i].phys_addr_lo;
269 		pm8001_ha->outbnd_q_tbl[i].interrup_vec_cnt_delay	=
270 			0 | (10 << 16) | (i << 24);
271 		pm8001_ha->outbnd_q_tbl[i].pi_virt		=
272 			pm8001_ha->memoryMap.region[pi_offset + i].virt_ptr;
273 		pm8001_write_32(pm8001_ha->outbnd_q_tbl[i].pi_virt, 0, 0);
274 		offsetob = i * 0x24;
275 		pm8001_ha->outbnd_q_tbl[i].ci_pci_bar		=
276 			get_pci_bar_index(pm8001_mr32(addressob,
277 			offsetob + 0x14));
278 		pm8001_ha->outbnd_q_tbl[i].ci_offset		=
279 			pm8001_mr32(addressob, (offsetob + 0x18));
280 		pm8001_ha->outbnd_q_tbl[i].consumer_idx		= 0;
281 		pm8001_ha->outbnd_q_tbl[i].producer_index	= 0;
282 	}
283 }
284 
285 /**
286  * update_main_config_table - update the main default table to the HBA.
287  * @pm8001_ha: our hba card information
288  */
289 static void update_main_config_table(struct pm8001_hba_info *pm8001_ha)
290 {
291 	void __iomem *address = pm8001_ha->main_cfg_tbl_addr;
292 	pm8001_mw32(address, 0x24,
293 		pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_q_nppd_hppd);
294 	pm8001_mw32(address, 0x28,
295 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid0_3);
296 	pm8001_mw32(address, 0x2C,
297 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid4_7);
298 	pm8001_mw32(address, 0x30,
299 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid0_3);
300 	pm8001_mw32(address, 0x34,
301 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid4_7);
302 	pm8001_mw32(address, 0x38,
303 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
304 					outbound_tgt_ITNexus_event_pid0_3);
305 	pm8001_mw32(address, 0x3C,
306 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
307 					outbound_tgt_ITNexus_event_pid4_7);
308 	pm8001_mw32(address, 0x40,
309 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
310 					outbound_tgt_ssp_event_pid0_3);
311 	pm8001_mw32(address, 0x44,
312 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
313 					outbound_tgt_ssp_event_pid4_7);
314 	pm8001_mw32(address, 0x48,
315 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
316 					outbound_tgt_smp_event_pid0_3);
317 	pm8001_mw32(address, 0x4C,
318 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
319 					outbound_tgt_smp_event_pid4_7);
320 	pm8001_mw32(address, 0x50,
321 		pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_event_log_addr);
322 	pm8001_mw32(address, 0x54,
323 		pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_event_log_addr);
324 	pm8001_mw32(address, 0x58,
325 		pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_size);
326 	pm8001_mw32(address, 0x5C,
327 		pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_option);
328 	pm8001_mw32(address, 0x60,
329 		pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_iop_event_log_addr);
330 	pm8001_mw32(address, 0x64,
331 		pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_iop_event_log_addr);
332 	pm8001_mw32(address, 0x68,
333 		pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_size);
334 	pm8001_mw32(address, 0x6C,
335 		pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_option);
336 	pm8001_mw32(address, 0x70,
337 		pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_interrupt);
338 }
339 
340 /**
341  * update_inbnd_queue_table - update the inbound queue table to the HBA.
342  * @pm8001_ha: our hba card information
343  * @number: entry in the queue
344  */
345 static void update_inbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
346 				     int number)
347 {
348 	void __iomem *address = pm8001_ha->inbnd_q_tbl_addr;
349 	u16 offset = number * 0x20;
350 	pm8001_mw32(address, offset + 0x00,
351 		pm8001_ha->inbnd_q_tbl[number].element_pri_size_cnt);
352 	pm8001_mw32(address, offset + 0x04,
353 		pm8001_ha->inbnd_q_tbl[number].upper_base_addr);
354 	pm8001_mw32(address, offset + 0x08,
355 		pm8001_ha->inbnd_q_tbl[number].lower_base_addr);
356 	pm8001_mw32(address, offset + 0x0C,
357 		pm8001_ha->inbnd_q_tbl[number].ci_upper_base_addr);
358 	pm8001_mw32(address, offset + 0x10,
359 		pm8001_ha->inbnd_q_tbl[number].ci_lower_base_addr);
360 }
361 
362 /**
363  * update_outbnd_queue_table - update the outbound queue table to the HBA.
364  * @pm8001_ha: our hba card information
365  * @number: entry in the queue
366  */
367 static void update_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
368 				      int number)
369 {
370 	void __iomem *address = pm8001_ha->outbnd_q_tbl_addr;
371 	u16 offset = number * 0x24;
372 	pm8001_mw32(address, offset + 0x00,
373 		pm8001_ha->outbnd_q_tbl[number].element_size_cnt);
374 	pm8001_mw32(address, offset + 0x04,
375 		pm8001_ha->outbnd_q_tbl[number].upper_base_addr);
376 	pm8001_mw32(address, offset + 0x08,
377 		pm8001_ha->outbnd_q_tbl[number].lower_base_addr);
378 	pm8001_mw32(address, offset + 0x0C,
379 		pm8001_ha->outbnd_q_tbl[number].pi_upper_base_addr);
380 	pm8001_mw32(address, offset + 0x10,
381 		pm8001_ha->outbnd_q_tbl[number].pi_lower_base_addr);
382 	pm8001_mw32(address, offset + 0x1C,
383 		pm8001_ha->outbnd_q_tbl[number].interrup_vec_cnt_delay);
384 }
385 
386 /**
387  * pm8001_bar4_shift - function is called to shift BAR base address
388  * @pm8001_ha : our hba card information
389  * @shiftValue : shifting value in memory bar.
390  */
391 int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue)
392 {
393 	u32 regVal;
394 	unsigned long start;
395 
396 	/* program the inbound AXI translation Lower Address */
397 	pm8001_cw32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW, shiftValue);
398 
399 	/* confirm the setting is written */
400 	start = jiffies + HZ; /* 1 sec */
401 	do {
402 		regVal = pm8001_cr32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW);
403 	} while ((regVal != shiftValue) && time_before(jiffies, start));
404 
405 	if (regVal != shiftValue) {
406 		pm8001_dbg(pm8001_ha, INIT,
407 			   "TIMEOUT:SPC_IBW_AXI_TRANSLATION_LOW = 0x%x\n",
408 			   regVal);
409 		return -1;
410 	}
411 	return 0;
412 }
413 
414 /**
415  * mpi_set_phys_g3_with_ssc
416  * @pm8001_ha: our hba card information
417  * @SSCbit: set SSCbit to 0 to disable all phys ssc; 1 to enable all phys ssc.
418  */
419 static void mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha,
420 				     u32 SSCbit)
421 {
422 	u32 offset, i;
423 	unsigned long flags;
424 
425 #define SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR 0x00030000
426 #define SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR 0x00040000
427 #define SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET 0x1074
428 #define SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET 0x1074
429 #define PHY_G3_WITHOUT_SSC_BIT_SHIFT 12
430 #define PHY_G3_WITH_SSC_BIT_SHIFT 13
431 #define SNW3_PHY_CAPABILITIES_PARITY 31
432 
433    /*
434     * Using shifted destination address 0x3_0000:0x1074 + 0x4000*N (N=0:3)
435     * Using shifted destination address 0x4_0000:0x1074 + 0x4000*(N-4) (N=4:7)
436     */
437 	spin_lock_irqsave(&pm8001_ha->lock, flags);
438 	if (-1 == pm8001_bar4_shift(pm8001_ha,
439 				SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR)) {
440 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
441 		return;
442 	}
443 
444 	for (i = 0; i < 4; i++) {
445 		offset = SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET + 0x4000 * i;
446 		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
447 	}
448 	/* shift membase 3 for SAS2_SETTINGS_LOCAL_PHY 4 - 7 */
449 	if (-1 == pm8001_bar4_shift(pm8001_ha,
450 				SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR)) {
451 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
452 		return;
453 	}
454 	for (i = 4; i < 8; i++) {
455 		offset = SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
456 		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
457 	}
458 	/*************************************************************
459 	Change the SSC upspreading value to 0x0 so that upspreading is disabled.
460 	Device MABC SMOD0 Controls
461 	Address: (via MEMBASE-III):
462 	Using shifted destination address 0x0_0000: with Offset 0xD8
463 
464 	31:28 R/W Reserved Do not change
465 	27:24 R/W SAS_SMOD_SPRDUP 0000
466 	23:20 R/W SAS_SMOD_SPRDDN 0000
467 	19:0  R/W  Reserved Do not change
468 	Upon power-up this register will read as 0x8990c016,
469 	and I would like you to change the SAS_SMOD_SPRDUP bits to 0b0000
470 	so that the written value will be 0x8090c016.
471 	This will ensure only down-spreading SSC is enabled on the SPC.
472 	*************************************************************/
473 	pm8001_cr32(pm8001_ha, 2, 0xd8);
474 	pm8001_cw32(pm8001_ha, 2, 0xd8, 0x8000C016);
475 
476 	/*set the shifted destination address to 0x0 to avoid error operation */
477 	pm8001_bar4_shift(pm8001_ha, 0x0);
478 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
479 	return;
480 }
481 
482 /**
483  * mpi_set_open_retry_interval_reg
484  * @pm8001_ha: our hba card information
485  * @interval: interval time for each OPEN_REJECT (RETRY). The units are in 1us.
486  */
487 static void mpi_set_open_retry_interval_reg(struct pm8001_hba_info *pm8001_ha,
488 					    u32 interval)
489 {
490 	u32 offset;
491 	u32 value;
492 	u32 i;
493 	unsigned long flags;
494 
495 #define OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR 0x00030000
496 #define OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR 0x00040000
497 #define OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET 0x30B4
498 #define OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET 0x30B4
499 #define OPEN_RETRY_INTERVAL_REG_MASK 0x0000FFFF
500 
501 	value = interval & OPEN_RETRY_INTERVAL_REG_MASK;
502 	spin_lock_irqsave(&pm8001_ha->lock, flags);
503 	/* shift bar and set the OPEN_REJECT(RETRY) interval time of PHY 0 -3.*/
504 	if (-1 == pm8001_bar4_shift(pm8001_ha,
505 			     OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR)) {
506 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
507 		return;
508 	}
509 	for (i = 0; i < 4; i++) {
510 		offset = OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET + 0x4000 * i;
511 		pm8001_cw32(pm8001_ha, 2, offset, value);
512 	}
513 
514 	if (-1 == pm8001_bar4_shift(pm8001_ha,
515 			     OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR)) {
516 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
517 		return;
518 	}
519 	for (i = 4; i < 8; i++) {
520 		offset = OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
521 		pm8001_cw32(pm8001_ha, 2, offset, value);
522 	}
523 	/*set the shifted destination address to 0x0 to avoid error operation */
524 	pm8001_bar4_shift(pm8001_ha, 0x0);
525 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
526 	return;
527 }
528 
529 /**
530  * mpi_init_check - check firmware initialization status.
531  * @pm8001_ha: our hba card information
532  */
533 static int mpi_init_check(struct pm8001_hba_info *pm8001_ha)
534 {
535 	u32 max_wait_count;
536 	u32 value;
537 	u32 gst_len_mpistate;
538 	/* Write bit0=1 to Inbound DoorBell Register to tell the SPC FW the
539 	table is updated */
540 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_UPDATE);
541 	/* wait until Inbound DoorBell Clear Register toggled */
542 	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
543 	do {
544 		udelay(1);
545 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
546 		value &= SPC_MSGU_CFG_TABLE_UPDATE;
547 	} while ((value != 0) && (--max_wait_count));
548 
549 	if (!max_wait_count)
550 		return -1;
551 	/* check the MPI-State for initialization */
552 	gst_len_mpistate =
553 		pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
554 		GST_GSTLEN_MPIS_OFFSET);
555 	if (GST_MPI_STATE_INIT != (gst_len_mpistate & GST_MPI_STATE_MASK))
556 		return -1;
557 	/* check MPI Initialization error */
558 	gst_len_mpistate = gst_len_mpistate >> 16;
559 	if (0x0000 != gst_len_mpistate)
560 		return -1;
561 	return 0;
562 }
563 
564 /**
565  * check_fw_ready - The LLDD check if the FW is ready, if not, return error.
566  * @pm8001_ha: our hba card information
567  */
568 static int check_fw_ready(struct pm8001_hba_info *pm8001_ha)
569 {
570 	u32 value, value1;
571 	u32 max_wait_count;
572 	/* check error state */
573 	value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
574 	value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
575 	/* check AAP error */
576 	if (SCRATCH_PAD1_ERR == (value & SCRATCH_PAD_STATE_MASK)) {
577 		/* error state */
578 		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
579 		return -1;
580 	}
581 
582 	/* check IOP error */
583 	if (SCRATCH_PAD2_ERR == (value1 & SCRATCH_PAD_STATE_MASK)) {
584 		/* error state */
585 		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3);
586 		return -1;
587 	}
588 
589 	/* bit 4-31 of scratch pad1 should be zeros if it is not
590 	in error state*/
591 	if (value & SCRATCH_PAD1_STATE_MASK) {
592 		/* error case */
593 		pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
594 		return -1;
595 	}
596 
597 	/* bit 2, 4-31 of scratch pad2 should be zeros if it is not
598 	in error state */
599 	if (value1 & SCRATCH_PAD2_STATE_MASK) {
600 		/* error case */
601 		return -1;
602 	}
603 
604 	max_wait_count = 1 * 1000 * 1000;/* 1 sec timeout */
605 
606 	/* wait until scratch pad 1 and 2 registers in ready state  */
607 	do {
608 		udelay(1);
609 		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
610 			& SCRATCH_PAD1_RDY;
611 		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
612 			& SCRATCH_PAD2_RDY;
613 		if ((--max_wait_count) == 0)
614 			return -1;
615 	} while ((value != SCRATCH_PAD1_RDY) || (value1 != SCRATCH_PAD2_RDY));
616 	return 0;
617 }
618 
619 static void init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
620 {
621 	void __iomem *base_addr;
622 	u32	value;
623 	u32	offset;
624 	u32	pcibar;
625 	u32	pcilogic;
626 
627 	value = pm8001_cr32(pm8001_ha, 0, 0x44);
628 	offset = value & 0x03FFFFFF;
629 	pm8001_dbg(pm8001_ha, INIT, "Scratchpad 0 Offset: %x\n", offset);
630 	pcilogic = (value & 0xFC000000) >> 26;
631 	pcibar = get_pci_bar_index(pcilogic);
632 	pm8001_dbg(pm8001_ha, INIT, "Scratchpad 0 PCI BAR: %d\n", pcibar);
633 	pm8001_ha->main_cfg_tbl_addr = base_addr =
634 		pm8001_ha->io_mem[pcibar].memvirtaddr + offset;
635 	pm8001_ha->general_stat_tbl_addr =
636 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x18);
637 	pm8001_ha->inbnd_q_tbl_addr =
638 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x1C);
639 	pm8001_ha->outbnd_q_tbl_addr =
640 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x20);
641 }
642 
643 /**
644  * pm8001_chip_init - the main init function that initialize whole PM8001 chip.
645  * @pm8001_ha: our hba card information
646  */
647 static int pm8001_chip_init(struct pm8001_hba_info *pm8001_ha)
648 {
649 	u32 i = 0;
650 	u16 deviceid;
651 	pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
652 	/* 8081 controllers need BAR shift to access MPI space
653 	* as this is shared with BIOS data */
654 	if (deviceid == 0x8081 || deviceid == 0x0042) {
655 		if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_SM_BASE)) {
656 			pm8001_dbg(pm8001_ha, FAIL,
657 				   "Shift Bar4 to 0x%x failed\n",
658 				   GSM_SM_BASE);
659 			return -1;
660 		}
661 	}
662 	/* check the firmware status */
663 	if (-1 == check_fw_ready(pm8001_ha)) {
664 		pm8001_dbg(pm8001_ha, FAIL, "Firmware is not ready!\n");
665 		return -EBUSY;
666 	}
667 
668 	/* Initialize pci space address eg: mpi offset */
669 	init_pci_device_addresses(pm8001_ha);
670 	init_default_table_values(pm8001_ha);
671 	read_main_config_table(pm8001_ha);
672 	read_general_status_table(pm8001_ha);
673 	read_inbnd_queue_table(pm8001_ha);
674 	read_outbnd_queue_table(pm8001_ha);
675 	/* update main config table ,inbound table and outbound table */
676 	update_main_config_table(pm8001_ha);
677 	for (i = 0; i < pm8001_ha->max_q_num; i++)
678 		update_inbnd_queue_table(pm8001_ha, i);
679 	for (i = 0; i < pm8001_ha->max_q_num; i++)
680 		update_outbnd_queue_table(pm8001_ha, i);
681 	/* 8081 controller donot require these operations */
682 	if (deviceid != 0x8081 && deviceid != 0x0042) {
683 		mpi_set_phys_g3_with_ssc(pm8001_ha, 0);
684 		/* 7->130ms, 34->500ms, 119->1.5s */
685 		mpi_set_open_retry_interval_reg(pm8001_ha, 119);
686 	}
687 	/* notify firmware update finished and check initialization status */
688 	if (0 == mpi_init_check(pm8001_ha)) {
689 		pm8001_dbg(pm8001_ha, INIT, "MPI initialize successful!\n");
690 	} else
691 		return -EBUSY;
692 	/*This register is a 16-bit timer with a resolution of 1us. This is the
693 	timer used for interrupt delay/coalescing in the PCIe Application Layer.
694 	Zero is not a valid value. A value of 1 in the register will cause the
695 	interrupts to be normal. A value greater than 1 will cause coalescing
696 	delays.*/
697 	pm8001_cw32(pm8001_ha, 1, 0x0033c0, 0x1);
698 	pm8001_cw32(pm8001_ha, 1, 0x0033c4, 0x0);
699 	return 0;
700 }
701 
702 static void pm8001_chip_post_init(struct pm8001_hba_info *pm8001_ha)
703 {
704 }
705 
706 static int mpi_uninit_check(struct pm8001_hba_info *pm8001_ha)
707 {
708 	u32 max_wait_count;
709 	u32 value;
710 	u32 gst_len_mpistate;
711 	u16 deviceid;
712 	pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
713 	if (deviceid == 0x8081 || deviceid == 0x0042) {
714 		if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_SM_BASE)) {
715 			pm8001_dbg(pm8001_ha, FAIL,
716 				   "Shift Bar4 to 0x%x failed\n",
717 				   GSM_SM_BASE);
718 			return -1;
719 		}
720 	}
721 	init_pci_device_addresses(pm8001_ha);
722 	/* Write bit1=1 to Inbound DoorBell Register to tell the SPC FW the
723 	table is stop */
724 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_RESET);
725 
726 	/* wait until Inbound DoorBell Clear Register toggled */
727 	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
728 	do {
729 		udelay(1);
730 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
731 		value &= SPC_MSGU_CFG_TABLE_RESET;
732 	} while ((value != 0) && (--max_wait_count));
733 
734 	if (!max_wait_count) {
735 		pm8001_dbg(pm8001_ha, FAIL, "TIMEOUT:IBDB value/=0x%x\n",
736 			   value);
737 		return -1;
738 	}
739 
740 	/* check the MPI-State for termination in progress */
741 	/* wait until Inbound DoorBell Clear Register toggled */
742 	max_wait_count = 1 * 1000 * 1000;  /* 1 sec */
743 	do {
744 		udelay(1);
745 		gst_len_mpistate =
746 			pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
747 			GST_GSTLEN_MPIS_OFFSET);
748 		if (GST_MPI_STATE_UNINIT ==
749 			(gst_len_mpistate & GST_MPI_STATE_MASK))
750 			break;
751 	} while (--max_wait_count);
752 	if (!max_wait_count) {
753 		pm8001_dbg(pm8001_ha, FAIL, " TIME OUT MPI State = 0x%x\n",
754 			   gst_len_mpistate & GST_MPI_STATE_MASK);
755 		return -1;
756 	}
757 	return 0;
758 }
759 
760 /**
761  * soft_reset_ready_check - Function to check FW is ready for soft reset.
762  * @pm8001_ha: our hba card information
763  */
764 static u32 soft_reset_ready_check(struct pm8001_hba_info *pm8001_ha)
765 {
766 	u32 regVal, regVal1, regVal2;
767 	if (mpi_uninit_check(pm8001_ha) != 0) {
768 		pm8001_dbg(pm8001_ha, FAIL, "MPI state is not ready\n");
769 		return -1;
770 	}
771 	/* read the scratch pad 2 register bit 2 */
772 	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
773 		& SCRATCH_PAD2_FWRDY_RST;
774 	if (regVal == SCRATCH_PAD2_FWRDY_RST) {
775 		pm8001_dbg(pm8001_ha, INIT, "Firmware is ready for reset.\n");
776 	} else {
777 		unsigned long flags;
778 		/* Trigger NMI twice via RB6 */
779 		spin_lock_irqsave(&pm8001_ha->lock, flags);
780 		if (-1 == pm8001_bar4_shift(pm8001_ha, RB6_ACCESS_REG)) {
781 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
782 			pm8001_dbg(pm8001_ha, FAIL,
783 				   "Shift Bar4 to 0x%x failed\n",
784 				   RB6_ACCESS_REG);
785 			return -1;
786 		}
787 		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET,
788 			RB6_MAGIC_NUMBER_RST);
789 		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET, RB6_MAGIC_NUMBER_RST);
790 		/* wait for 100 ms */
791 		mdelay(100);
792 		regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2) &
793 			SCRATCH_PAD2_FWRDY_RST;
794 		if (regVal != SCRATCH_PAD2_FWRDY_RST) {
795 			regVal1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
796 			regVal2 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
797 			pm8001_dbg(pm8001_ha, FAIL, "TIMEOUT:MSGU_SCRATCH_PAD1=0x%x, MSGU_SCRATCH_PAD2=0x%x\n",
798 				   regVal1, regVal2);
799 			pm8001_dbg(pm8001_ha, FAIL,
800 				   "SCRATCH_PAD0 value = 0x%x\n",
801 				   pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0));
802 			pm8001_dbg(pm8001_ha, FAIL,
803 				   "SCRATCH_PAD3 value = 0x%x\n",
804 				   pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3));
805 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
806 			return -1;
807 		}
808 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
809 	}
810 	return 0;
811 }
812 
813 /**
814  * pm8001_chip_soft_rst - soft reset the PM8001 chip, so that the clear all
815  * the FW register status to the originated status.
816  * @pm8001_ha: our hba card information
817  */
818 static int
819 pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha)
820 {
821 	u32	regVal, toggleVal;
822 	u32	max_wait_count;
823 	u32	regVal1, regVal2, regVal3;
824 	u32	signature = 0x252acbcd; /* for host scratch pad0 */
825 	unsigned long flags;
826 
827 	/* step1: Check FW is ready for soft reset */
828 	if (soft_reset_ready_check(pm8001_ha) != 0) {
829 		pm8001_dbg(pm8001_ha, FAIL, "FW is not ready\n");
830 		return -1;
831 	}
832 
833 	/* step 2: clear NMI status register on AAP1 and IOP, write the same
834 	value to clear */
835 	/* map 0x60000 to BAR4(0x20), BAR2(win) */
836 	spin_lock_irqsave(&pm8001_ha->lock, flags);
837 	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_AAP1_ADDR_BASE)) {
838 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
839 		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
840 			   MBIC_AAP1_ADDR_BASE);
841 		return -1;
842 	}
843 	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP);
844 	pm8001_dbg(pm8001_ha, INIT, "MBIC - NMI Enable VPE0 (IOP)= 0x%x\n",
845 		   regVal);
846 	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP, 0x0);
847 	/* map 0x70000 to BAR4(0x20), BAR2(win) */
848 	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_IOP_ADDR_BASE)) {
849 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
850 		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
851 			   MBIC_IOP_ADDR_BASE);
852 		return -1;
853 	}
854 	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1);
855 	pm8001_dbg(pm8001_ha, INIT, "MBIC - NMI Enable VPE0 (AAP1)= 0x%x\n",
856 		   regVal);
857 	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1, 0x0);
858 
859 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE);
860 	pm8001_dbg(pm8001_ha, INIT, "PCIE -Event Interrupt Enable = 0x%x\n",
861 		   regVal);
862 	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE, 0x0);
863 
864 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT);
865 	pm8001_dbg(pm8001_ha, INIT, "PCIE - Event Interrupt  = 0x%x\n",
866 		   regVal);
867 	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT, regVal);
868 
869 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE);
870 	pm8001_dbg(pm8001_ha, INIT, "PCIE -Error Interrupt Enable = 0x%x\n",
871 		   regVal);
872 	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE, 0x0);
873 
874 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT);
875 	pm8001_dbg(pm8001_ha, INIT, "PCIE - Error Interrupt = 0x%x\n", regVal);
876 	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT, regVal);
877 
878 	/* read the scratch pad 1 register bit 2 */
879 	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
880 		& SCRATCH_PAD1_RST;
881 	toggleVal = regVal ^ SCRATCH_PAD1_RST;
882 
883 	/* set signature in host scratch pad0 register to tell SPC that the
884 	host performs the soft reset */
885 	pm8001_cw32(pm8001_ha, 0, MSGU_HOST_SCRATCH_PAD_0, signature);
886 
887 	/* read required registers for confirmming */
888 	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
889 	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
890 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
891 		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
892 			   GSM_ADDR_BASE);
893 		return -1;
894 	}
895 	pm8001_dbg(pm8001_ha, INIT,
896 		   "GSM 0x0(0x00007b88)-GSM Configuration and Reset = 0x%x\n",
897 		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));
898 
899 	/* step 3: host read GSM Configuration and Reset register */
900 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
901 	/* Put those bits to low */
902 	/* GSM XCBI offset = 0x70 0000
903 	0x00 Bit 13 COM_SLV_SW_RSTB 1
904 	0x00 Bit 12 QSSP_SW_RSTB 1
905 	0x00 Bit 11 RAAE_SW_RSTB 1
906 	0x00 Bit 9 RB_1_SW_RSTB 1
907 	0x00 Bit 8 SM_SW_RSTB 1
908 	*/
909 	regVal &= ~(0x00003b00);
910 	/* host write GSM Configuration and Reset register */
911 	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
912 	pm8001_dbg(pm8001_ha, INIT,
913 		   "GSM 0x0 (0x00007b88 ==> 0x00004088) - GSM Configuration and Reset is set to = 0x%x\n",
914 		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));
915 
916 	/* step 4: */
917 	/* disable GSM - Read Address Parity Check */
918 	regVal1 = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
919 	pm8001_dbg(pm8001_ha, INIT,
920 		   "GSM 0x700038 - Read Address Parity Check Enable = 0x%x\n",
921 		   regVal1);
922 	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, 0x0);
923 	pm8001_dbg(pm8001_ha, INIT,
924 		   "GSM 0x700038 - Read Address Parity Check Enable is set to = 0x%x\n",
925 		   pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK));
926 
927 	/* disable GSM - Write Address Parity Check */
928 	regVal2 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
929 	pm8001_dbg(pm8001_ha, INIT,
930 		   "GSM 0x700040 - Write Address Parity Check Enable = 0x%x\n",
931 		   regVal2);
932 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, 0x0);
933 	pm8001_dbg(pm8001_ha, INIT,
934 		   "GSM 0x700040 - Write Address Parity Check Enable is set to = 0x%x\n",
935 		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK));
936 
937 	/* disable GSM - Write Data Parity Check */
938 	regVal3 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
939 	pm8001_dbg(pm8001_ha, INIT, "GSM 0x300048 - Write Data Parity Check Enable = 0x%x\n",
940 		   regVal3);
941 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, 0x0);
942 	pm8001_dbg(pm8001_ha, INIT,
943 		   "GSM 0x300048 - Write Data Parity Check Enable is set to = 0x%x\n",
944 		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK));
945 
946 	/* step 5: delay 10 usec */
947 	udelay(10);
948 	/* step 5-b: set GPIO-0 output control to tristate anyway */
949 	if (-1 == pm8001_bar4_shift(pm8001_ha, GPIO_ADDR_BASE)) {
950 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
951 		pm8001_dbg(pm8001_ha, INIT, "Shift Bar4 to 0x%x failed\n",
952 			   GPIO_ADDR_BASE);
953 		return -1;
954 	}
955 	regVal = pm8001_cr32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET);
956 	pm8001_dbg(pm8001_ha, INIT, "GPIO Output Control Register: = 0x%x\n",
957 		   regVal);
958 	/* set GPIO-0 output control to tri-state */
959 	regVal &= 0xFFFFFFFC;
960 	pm8001_cw32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET, regVal);
961 
962 	/* Step 6: Reset the IOP and AAP1 */
963 	/* map 0x00000 to BAR4(0x20), BAR2(win) */
964 	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
965 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
966 		pm8001_dbg(pm8001_ha, FAIL, "SPC Shift Bar4 to 0x%x failed\n",
967 			   SPC_TOP_LEVEL_ADDR_BASE);
968 		return -1;
969 	}
970 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
971 	pm8001_dbg(pm8001_ha, INIT, "Top Register before resetting IOP/AAP1:= 0x%x\n",
972 		   regVal);
973 	regVal &= ~(SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
974 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
975 
976 	/* step 7: Reset the BDMA/OSSP */
977 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
978 	pm8001_dbg(pm8001_ha, INIT, "Top Register before resetting BDMA/OSSP: = 0x%x\n",
979 		   regVal);
980 	regVal &= ~(SPC_REG_RESET_BDMA_CORE | SPC_REG_RESET_OSSP);
981 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
982 
983 	/* step 8: delay 10 usec */
984 	udelay(10);
985 
986 	/* step 9: bring the BDMA and OSSP out of reset */
987 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
988 	pm8001_dbg(pm8001_ha, INIT,
989 		   "Top Register before bringing up BDMA/OSSP:= 0x%x\n",
990 		   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 10: delay 10 usec */
995 	udelay(10);
996 
997 	/* step 11: reads and sets the GSM Configuration and Reset Register */
998 	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
999 	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
1000 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1001 		pm8001_dbg(pm8001_ha, FAIL, "SPC Shift Bar4 to 0x%x failed\n",
1002 			   GSM_ADDR_BASE);
1003 		return -1;
1004 	}
1005 	pm8001_dbg(pm8001_ha, INIT,
1006 		   "GSM 0x0 (0x00007b88)-GSM Configuration and Reset = 0x%x\n",
1007 		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));
1008 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
1009 	/* Put those bits to high */
1010 	/* GSM XCBI offset = 0x70 0000
1011 	0x00 Bit 13 COM_SLV_SW_RSTB 1
1012 	0x00 Bit 12 QSSP_SW_RSTB 1
1013 	0x00 Bit 11 RAAE_SW_RSTB 1
1014 	0x00 Bit 9   RB_1_SW_RSTB 1
1015 	0x00 Bit 8   SM_SW_RSTB 1
1016 	*/
1017 	regVal |= (GSM_CONFIG_RESET_VALUE);
1018 	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
1019 	pm8001_dbg(pm8001_ha, INIT, "GSM (0x00004088 ==> 0x00007b88) - GSM Configuration and Reset is set to = 0x%x\n",
1020 		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));
1021 
1022 	/* step 12: Restore GSM - Read Address Parity Check */
1023 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
1024 	/* just for debugging */
1025 	pm8001_dbg(pm8001_ha, INIT,
1026 		   "GSM 0x700038 - Read Address Parity Check Enable = 0x%x\n",
1027 		   regVal);
1028 	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, regVal1);
1029 	pm8001_dbg(pm8001_ha, INIT, "GSM 0x700038 - Read Address Parity Check Enable is set to = 0x%x\n",
1030 		   pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK));
1031 	/* Restore GSM - Write Address Parity Check */
1032 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
1033 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, regVal2);
1034 	pm8001_dbg(pm8001_ha, INIT,
1035 		   "GSM 0x700040 - Write Address Parity Check Enable is set to = 0x%x\n",
1036 		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK));
1037 	/* Restore GSM - Write Data Parity Check */
1038 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
1039 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, regVal3);
1040 	pm8001_dbg(pm8001_ha, INIT,
1041 		   "GSM 0x700048 - Write Data Parity Check Enable is set to = 0x%x\n",
1042 		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK));
1043 
1044 	/* step 13: bring the IOP and AAP1 out of reset */
1045 	/* map 0x00000 to BAR4(0x20), BAR2(win) */
1046 	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
1047 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1048 		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
1049 			   SPC_TOP_LEVEL_ADDR_BASE);
1050 		return -1;
1051 	}
1052 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
1053 	regVal |= (SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
1054 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
1055 
1056 	/* step 14: delay 10 usec - Normal Mode */
1057 	udelay(10);
1058 	/* check Soft Reset Normal mode or Soft Reset HDA mode */
1059 	if (signature == SPC_SOFT_RESET_SIGNATURE) {
1060 		/* step 15 (Normal Mode): wait until scratch pad1 register
1061 		bit 2 toggled */
1062 		max_wait_count = 2 * 1000 * 1000;/* 2 sec */
1063 		do {
1064 			udelay(1);
1065 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1) &
1066 				SCRATCH_PAD1_RST;
1067 		} while ((regVal != toggleVal) && (--max_wait_count));
1068 
1069 		if (!max_wait_count) {
1070 			regVal = pm8001_cr32(pm8001_ha, 0,
1071 				MSGU_SCRATCH_PAD_1);
1072 			pm8001_dbg(pm8001_ha, FAIL, "TIMEOUT : ToggleVal 0x%x,MSGU_SCRATCH_PAD1 = 0x%x\n",
1073 				   toggleVal, regVal);
1074 			pm8001_dbg(pm8001_ha, FAIL,
1075 				   "SCRATCH_PAD0 value = 0x%x\n",
1076 				   pm8001_cr32(pm8001_ha, 0,
1077 					       MSGU_SCRATCH_PAD_0));
1078 			pm8001_dbg(pm8001_ha, FAIL,
1079 				   "SCRATCH_PAD2 value = 0x%x\n",
1080 				   pm8001_cr32(pm8001_ha, 0,
1081 					       MSGU_SCRATCH_PAD_2));
1082 			pm8001_dbg(pm8001_ha, FAIL,
1083 				   "SCRATCH_PAD3 value = 0x%x\n",
1084 				   pm8001_cr32(pm8001_ha, 0,
1085 					       MSGU_SCRATCH_PAD_3));
1086 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1087 			return -1;
1088 		}
1089 
1090 		/* step 16 (Normal) - Clear ODMR and ODCR */
1091 		pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
1092 		pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);
1093 
1094 		/* step 17 (Normal Mode): wait for the FW and IOP to get
1095 		ready - 1 sec timeout */
1096 		/* Wait for the SPC Configuration Table to be ready */
1097 		if (check_fw_ready(pm8001_ha) == -1) {
1098 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
1099 			/* return error if MPI Configuration Table not ready */
1100 			pm8001_dbg(pm8001_ha, INIT,
1101 				   "FW not ready SCRATCH_PAD1 = 0x%x\n",
1102 				   regVal);
1103 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
1104 			/* return error if MPI Configuration Table not ready */
1105 			pm8001_dbg(pm8001_ha, INIT,
1106 				   "FW not ready SCRATCH_PAD2 = 0x%x\n",
1107 				   regVal);
1108 			pm8001_dbg(pm8001_ha, INIT,
1109 				   "SCRATCH_PAD0 value = 0x%x\n",
1110 				   pm8001_cr32(pm8001_ha, 0,
1111 					       MSGU_SCRATCH_PAD_0));
1112 			pm8001_dbg(pm8001_ha, INIT,
1113 				   "SCRATCH_PAD3 value = 0x%x\n",
1114 				   pm8001_cr32(pm8001_ha, 0,
1115 					       MSGU_SCRATCH_PAD_3));
1116 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1117 			return -1;
1118 		}
1119 	}
1120 	pm8001_bar4_shift(pm8001_ha, 0);
1121 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1122 
1123 	pm8001_dbg(pm8001_ha, INIT, "SPC soft reset Complete\n");
1124 	return 0;
1125 }
1126 
1127 static void pm8001_hw_chip_rst(struct pm8001_hba_info *pm8001_ha)
1128 {
1129 	u32 i;
1130 	u32 regVal;
1131 	pm8001_dbg(pm8001_ha, INIT, "chip reset start\n");
1132 
1133 	/* do SPC chip reset. */
1134 	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
1135 	regVal &= ~(SPC_REG_RESET_DEVICE);
1136 	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);
1137 
1138 	/* delay 10 usec */
1139 	udelay(10);
1140 
1141 	/* bring chip reset out of reset */
1142 	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
1143 	regVal |= SPC_REG_RESET_DEVICE;
1144 	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);
1145 
1146 	/* delay 10 usec */
1147 	udelay(10);
1148 
1149 	/* wait for 20 msec until the firmware gets reloaded */
1150 	i = 20;
1151 	do {
1152 		mdelay(1);
1153 	} while ((--i) != 0);
1154 
1155 	pm8001_dbg(pm8001_ha, INIT, "chip reset finished\n");
1156 }
1157 
1158 /**
1159  * pm8001_chip_iounmap - which mapped when initialized.
1160  * @pm8001_ha: our hba card information
1161  */
1162 void pm8001_chip_iounmap(struct pm8001_hba_info *pm8001_ha)
1163 {
1164 	s8 bar, logical = 0;
1165 	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
1166 		/*
1167 		** logical BARs for SPC:
1168 		** bar 0 and 1 - logical BAR0
1169 		** bar 2 and 3 - logical BAR1
1170 		** bar4 - logical BAR2
1171 		** bar5 - logical BAR3
1172 		** Skip the appropriate assignments:
1173 		*/
1174 		if ((bar == 1) || (bar == 3))
1175 			continue;
1176 		if (pm8001_ha->io_mem[logical].memvirtaddr) {
1177 			iounmap(pm8001_ha->io_mem[logical].memvirtaddr);
1178 			logical++;
1179 		}
1180 	}
1181 }
1182 
1183 #ifndef PM8001_USE_MSIX
1184 /**
1185  * pm8001_chip_intx_interrupt_enable - enable PM8001 chip interrupt
1186  * @pm8001_ha: our hba card information
1187  */
1188 static void
1189 pm8001_chip_intx_interrupt_enable(struct pm8001_hba_info *pm8001_ha)
1190 {
1191 	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);
1192 	pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
1193 }
1194 
1195 /**
1196  * pm8001_chip_intx_interrupt_disable - disable PM8001 chip interrupt
1197  * @pm8001_ha: our hba card information
1198  */
1199 static void
1200 pm8001_chip_intx_interrupt_disable(struct pm8001_hba_info *pm8001_ha)
1201 {
1202 	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_MASK_ALL);
1203 }
1204 
1205 #else
1206 
1207 /**
1208  * pm8001_chip_msix_interrupt_enable - enable PM8001 chip interrupt
1209  * @pm8001_ha: our hba card information
1210  * @int_vec_idx: interrupt number to enable
1211  */
1212 static void
1213 pm8001_chip_msix_interrupt_enable(struct pm8001_hba_info *pm8001_ha,
1214 	u32 int_vec_idx)
1215 {
1216 	u32 msi_index;
1217 	u32 value;
1218 	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
1219 	msi_index += MSIX_TABLE_BASE;
1220 	pm8001_cw32(pm8001_ha, 0, msi_index, MSIX_INTERRUPT_ENABLE);
1221 	value = (1 << int_vec_idx);
1222 	pm8001_cw32(pm8001_ha, 0,  MSGU_ODCR, value);
1223 
1224 }
1225 
1226 /**
1227  * pm8001_chip_msix_interrupt_disable - disable PM8001 chip interrupt
1228  * @pm8001_ha: our hba card information
1229  * @int_vec_idx: interrupt number to disable
1230  */
1231 static void
1232 pm8001_chip_msix_interrupt_disable(struct pm8001_hba_info *pm8001_ha,
1233 	u32 int_vec_idx)
1234 {
1235 	u32 msi_index;
1236 	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
1237 	msi_index += MSIX_TABLE_BASE;
1238 	pm8001_cw32(pm8001_ha, 0,  msi_index, MSIX_INTERRUPT_DISABLE);
1239 }
1240 #endif
1241 
1242 /**
1243  * pm8001_chip_interrupt_enable - enable PM8001 chip interrupt
1244  * @pm8001_ha: our hba card information
1245  * @vec: unused
1246  */
1247 static void
1248 pm8001_chip_interrupt_enable(struct pm8001_hba_info *pm8001_ha, u8 vec)
1249 {
1250 #ifdef PM8001_USE_MSIX
1251 	pm8001_chip_msix_interrupt_enable(pm8001_ha, 0);
1252 #else
1253 	pm8001_chip_intx_interrupt_enable(pm8001_ha);
1254 #endif
1255 }
1256 
1257 /**
1258  * pm8001_chip_interrupt_disable - disable PM8001 chip interrupt
1259  * @pm8001_ha: our hba card information
1260  * @vec: unused
1261  */
1262 static void
1263 pm8001_chip_interrupt_disable(struct pm8001_hba_info *pm8001_ha, u8 vec)
1264 {
1265 #ifdef PM8001_USE_MSIX
1266 	pm8001_chip_msix_interrupt_disable(pm8001_ha, 0);
1267 #else
1268 	pm8001_chip_intx_interrupt_disable(pm8001_ha);
1269 #endif
1270 }
1271 
1272 /**
1273  * pm8001_mpi_msg_free_get - get the free message buffer for transfer
1274  * inbound queue.
1275  * @circularQ: the inbound queue  we want to transfer to HBA.
1276  * @messageSize: the message size of this transfer, normally it is 64 bytes
1277  * @messagePtr: the pointer to message.
1278  */
1279 int pm8001_mpi_msg_free_get(struct inbound_queue_table *circularQ,
1280 			    u16 messageSize, void **messagePtr)
1281 {
1282 	u32 offset, consumer_index;
1283 	struct mpi_msg_hdr *msgHeader;
1284 	u8 bcCount = 1; /* only support single buffer */
1285 
1286 	/* Checks is the requested message size can be allocated in this queue*/
1287 	if (messageSize > IOMB_SIZE_SPCV) {
1288 		*messagePtr = NULL;
1289 		return -1;
1290 	}
1291 
1292 	/* Stores the new consumer index */
1293 	consumer_index = pm8001_read_32(circularQ->ci_virt);
1294 	circularQ->consumer_index = cpu_to_le32(consumer_index);
1295 	if (((circularQ->producer_idx + bcCount) % PM8001_MPI_QUEUE) ==
1296 		le32_to_cpu(circularQ->consumer_index)) {
1297 		*messagePtr = NULL;
1298 		return -1;
1299 	}
1300 	/* get memory IOMB buffer address */
1301 	offset = circularQ->producer_idx * messageSize;
1302 	/* increment to next bcCount element */
1303 	circularQ->producer_idx = (circularQ->producer_idx + bcCount)
1304 				% PM8001_MPI_QUEUE;
1305 	/* Adds that distance to the base of the region virtual address plus
1306 	the message header size*/
1307 	msgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt	+ offset);
1308 	*messagePtr = ((void *)msgHeader) + sizeof(struct mpi_msg_hdr);
1309 	return 0;
1310 }
1311 
1312 /**
1313  * pm8001_mpi_build_cmd- build the message queue for transfer, update the PI to
1314  * FW to tell the fw to get this message from IOMB.
1315  * @pm8001_ha: our hba card information
1316  * @q_index: the index in the inbound queue we want to transfer to HBA.
1317  * @opCode: the operation code represents commands which LLDD and fw recognized.
1318  * @payload: the command payload of each operation command.
1319  * @nb: size in bytes of the command payload
1320  * @responseQueue: queue to interrupt on w/ command response (if any)
1321  */
1322 int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
1323 			 u32 q_index, u32 opCode, void *payload, size_t nb,
1324 			 u32 responseQueue)
1325 {
1326 	u32 Header = 0, hpriority = 0, bc = 1, category = 0x02;
1327 	void *pMessage;
1328 	unsigned long flags;
1329 	struct inbound_queue_table *circularQ = &pm8001_ha->inbnd_q_tbl[q_index];
1330 	int rv;
1331 	u32 htag = le32_to_cpu(*(__le32 *)payload);
1332 
1333 	trace_pm80xx_mpi_build_cmd(pm8001_ha->id, opCode, htag, q_index,
1334 		circularQ->producer_idx, le32_to_cpu(circularQ->consumer_index));
1335 
1336 	if (WARN_ON(q_index >= pm8001_ha->max_q_num))
1337 		return -EINVAL;
1338 
1339 	spin_lock_irqsave(&circularQ->iq_lock, flags);
1340 	rv = pm8001_mpi_msg_free_get(circularQ, pm8001_ha->iomb_size,
1341 			&pMessage);
1342 	if (rv < 0) {
1343 		pm8001_dbg(pm8001_ha, IO, "No free mpi buffer\n");
1344 		rv = -ENOMEM;
1345 		goto done;
1346 	}
1347 
1348 	if (nb > (pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr)))
1349 		nb = pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr);
1350 	memcpy(pMessage, payload, nb);
1351 	if (nb + sizeof(struct mpi_msg_hdr) < pm8001_ha->iomb_size)
1352 		memset(pMessage + nb, 0, pm8001_ha->iomb_size -
1353 				(nb + sizeof(struct mpi_msg_hdr)));
1354 
1355 	/*Build the header*/
1356 	Header = ((1 << 31) | (hpriority << 30) | ((bc & 0x1f) << 24)
1357 		| ((responseQueue & 0x3F) << 16)
1358 		| ((category & 0xF) << 12) | (opCode & 0xFFF));
1359 
1360 	pm8001_write_32((pMessage - 4), 0, cpu_to_le32(Header));
1361 	/*Update the PI to the firmware*/
1362 	pm8001_cw32(pm8001_ha, circularQ->pi_pci_bar,
1363 		circularQ->pi_offset, circularQ->producer_idx);
1364 	pm8001_dbg(pm8001_ha, DEVIO,
1365 		   "INB Q %x OPCODE:%x , UPDATED PI=%d CI=%d\n",
1366 		   responseQueue, opCode, circularQ->producer_idx,
1367 		   circularQ->consumer_index);
1368 done:
1369 	spin_unlock_irqrestore(&circularQ->iq_lock, flags);
1370 	return rv;
1371 }
1372 
1373 u32 pm8001_mpi_msg_free_set(struct pm8001_hba_info *pm8001_ha, void *pMsg,
1374 			    struct outbound_queue_table *circularQ, u8 bc)
1375 {
1376 	u32 producer_index;
1377 	struct mpi_msg_hdr *msgHeader;
1378 	struct mpi_msg_hdr *pOutBoundMsgHeader;
1379 
1380 	msgHeader = (struct mpi_msg_hdr *)(pMsg - sizeof(struct mpi_msg_hdr));
1381 	pOutBoundMsgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt +
1382 				circularQ->consumer_idx * pm8001_ha->iomb_size);
1383 	if (pOutBoundMsgHeader != msgHeader) {
1384 		pm8001_dbg(pm8001_ha, FAIL,
1385 			   "consumer_idx = %d msgHeader = %p\n",
1386 			   circularQ->consumer_idx, msgHeader);
1387 
1388 		/* Update the producer index from SPC */
1389 		producer_index = pm8001_read_32(circularQ->pi_virt);
1390 		circularQ->producer_index = cpu_to_le32(producer_index);
1391 		pm8001_dbg(pm8001_ha, FAIL,
1392 			   "consumer_idx = %d producer_index = %dmsgHeader = %p\n",
1393 			   circularQ->consumer_idx,
1394 			   circularQ->producer_index, msgHeader);
1395 		return 0;
1396 	}
1397 	/* free the circular queue buffer elements associated with the message*/
1398 	circularQ->consumer_idx = (circularQ->consumer_idx + bc)
1399 				% PM8001_MPI_QUEUE;
1400 	/* update the CI of outbound queue */
1401 	pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar, circularQ->ci_offset,
1402 		circularQ->consumer_idx);
1403 	/* Update the producer index from SPC*/
1404 	producer_index = pm8001_read_32(circularQ->pi_virt);
1405 	circularQ->producer_index = cpu_to_le32(producer_index);
1406 	pm8001_dbg(pm8001_ha, IO, " CI=%d PI=%d\n",
1407 		   circularQ->consumer_idx, circularQ->producer_index);
1408 	return 0;
1409 }
1410 
1411 /**
1412  * pm8001_mpi_msg_consume- get the MPI message from outbound queue
1413  * message table.
1414  * @pm8001_ha: our hba card information
1415  * @circularQ: the outbound queue  table.
1416  * @messagePtr1: the message contents of this outbound message.
1417  * @pBC: the message size.
1418  */
1419 u32 pm8001_mpi_msg_consume(struct pm8001_hba_info *pm8001_ha,
1420 			   struct outbound_queue_table *circularQ,
1421 			   void **messagePtr1, u8 *pBC)
1422 {
1423 	struct mpi_msg_hdr	*msgHeader;
1424 	__le32	msgHeader_tmp;
1425 	u32 header_tmp;
1426 	do {
1427 		/* If there are not-yet-delivered messages ... */
1428 		if (le32_to_cpu(circularQ->producer_index)
1429 			!= circularQ->consumer_idx) {
1430 			/*Get the pointer to the circular queue buffer element*/
1431 			msgHeader = (struct mpi_msg_hdr *)
1432 				(circularQ->base_virt +
1433 				circularQ->consumer_idx * pm8001_ha->iomb_size);
1434 			/* read header */
1435 			header_tmp = pm8001_read_32(msgHeader);
1436 			msgHeader_tmp = cpu_to_le32(header_tmp);
1437 			pm8001_dbg(pm8001_ha, DEVIO,
1438 				   "outbound opcode msgheader:%x ci=%d pi=%d\n",
1439 				   msgHeader_tmp, circularQ->consumer_idx,
1440 				   circularQ->producer_index);
1441 			if (0 != (le32_to_cpu(msgHeader_tmp) & 0x80000000)) {
1442 				if (OPC_OUB_SKIP_ENTRY !=
1443 					(le32_to_cpu(msgHeader_tmp) & 0xfff)) {
1444 					*messagePtr1 =
1445 						((u8 *)msgHeader) +
1446 						sizeof(struct mpi_msg_hdr);
1447 					*pBC = (u8)((le32_to_cpu(msgHeader_tmp)
1448 						>> 24) & 0x1f);
1449 					pm8001_dbg(pm8001_ha, IO,
1450 						   ": CI=%d PI=%d msgHeader=%x\n",
1451 						   circularQ->consumer_idx,
1452 						   circularQ->producer_index,
1453 						   msgHeader_tmp);
1454 					return MPI_IO_STATUS_SUCCESS;
1455 				} else {
1456 					circularQ->consumer_idx =
1457 						(circularQ->consumer_idx +
1458 						((le32_to_cpu(msgHeader_tmp)
1459 						 >> 24) & 0x1f))
1460 							% PM8001_MPI_QUEUE;
1461 					msgHeader_tmp = 0;
1462 					pm8001_write_32(msgHeader, 0, 0);
1463 					/* update the CI of outbound queue */
1464 					pm8001_cw32(pm8001_ha,
1465 						circularQ->ci_pci_bar,
1466 						circularQ->ci_offset,
1467 						circularQ->consumer_idx);
1468 				}
1469 			} else {
1470 				circularQ->consumer_idx =
1471 					(circularQ->consumer_idx +
1472 					((le32_to_cpu(msgHeader_tmp) >> 24) &
1473 					0x1f)) % PM8001_MPI_QUEUE;
1474 				msgHeader_tmp = 0;
1475 				pm8001_write_32(msgHeader, 0, 0);
1476 				/* update the CI of outbound queue */
1477 				pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar,
1478 					circularQ->ci_offset,
1479 					circularQ->consumer_idx);
1480 				return MPI_IO_STATUS_FAIL;
1481 			}
1482 		} else {
1483 			u32 producer_index;
1484 			void *pi_virt = circularQ->pi_virt;
1485 			/* spurious interrupt during setup if
1486 			 * kexec-ing and driver doing a doorbell access
1487 			 * with the pre-kexec oq interrupt setup
1488 			 */
1489 			if (!pi_virt)
1490 				break;
1491 			/* Update the producer index from SPC */
1492 			producer_index = pm8001_read_32(pi_virt);
1493 			circularQ->producer_index = cpu_to_le32(producer_index);
1494 		}
1495 	} while (le32_to_cpu(circularQ->producer_index) !=
1496 		circularQ->consumer_idx);
1497 	/* while we don't have any more not-yet-delivered message */
1498 	/* report empty */
1499 	return MPI_IO_STATUS_BUSY;
1500 }
1501 
1502 void pm8001_work_fn(struct work_struct *work)
1503 {
1504 	struct pm8001_work *pw = container_of(work, struct pm8001_work, work);
1505 	struct pm8001_device *pm8001_dev;
1506 	struct domain_device *dev;
1507 
1508 	/*
1509 	 * So far, all users of this stash an associated structure here.
1510 	 * If we get here, and this pointer is null, then the action
1511 	 * was cancelled. This nullification happens when the device
1512 	 * goes away.
1513 	 */
1514 	if (pw->handler != IO_FATAL_ERROR) {
1515 		pm8001_dev = pw->data; /* Most stash device structure */
1516 		if ((pm8001_dev == NULL)
1517 		 || ((pw->handler != IO_XFER_ERROR_BREAK)
1518 			 && (pm8001_dev->dev_type == SAS_PHY_UNUSED))) {
1519 			kfree(pw);
1520 			return;
1521 		}
1522 	}
1523 
1524 	switch (pw->handler) {
1525 	case IO_XFER_ERROR_BREAK:
1526 	{	/* This one stashes the sas_task instead */
1527 		struct sas_task *t = (struct sas_task *)pm8001_dev;
1528 		struct pm8001_ccb_info *ccb;
1529 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1530 		unsigned long flags, flags1;
1531 		struct task_status_struct *ts;
1532 		int i;
1533 
1534 		if (pm8001_query_task(t) == TMF_RESP_FUNC_SUCC)
1535 			break; /* Task still on lu */
1536 		spin_lock_irqsave(&pm8001_ha->lock, flags);
1537 
1538 		spin_lock_irqsave(&t->task_state_lock, flags1);
1539 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
1540 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1541 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1542 			break; /* Task got completed by another */
1543 		}
1544 		spin_unlock_irqrestore(&t->task_state_lock, flags1);
1545 
1546 		/* Search for a possible ccb that matches the task */
1547 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1548 			ccb = &pm8001_ha->ccb_info[i];
1549 			if ((ccb->ccb_tag != PM8001_INVALID_TAG) &&
1550 			    (ccb->task == t))
1551 				break;
1552 		}
1553 		if (!ccb) {
1554 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1555 			break; /* Task got freed by another */
1556 		}
1557 		ts = &t->task_status;
1558 		ts->resp = SAS_TASK_COMPLETE;
1559 		/* Force the midlayer to retry */
1560 		ts->stat = SAS_QUEUE_FULL;
1561 		pm8001_dev = ccb->device;
1562 		if (pm8001_dev)
1563 			atomic_dec(&pm8001_dev->running_req);
1564 		spin_lock_irqsave(&t->task_state_lock, flags1);
1565 		t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
1566 		t->task_state_flags |= SAS_TASK_STATE_DONE;
1567 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
1568 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1569 			pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with event 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
1570 				   t, pw->handler, ts->resp, ts->stat);
1571 			pm8001_ccb_task_free(pm8001_ha, ccb);
1572 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1573 		} else {
1574 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1575 			pm8001_ccb_task_free(pm8001_ha, ccb);
1576 			mb();/* in order to force CPU ordering */
1577 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1578 			t->task_done(t);
1579 		}
1580 	}	break;
1581 	case IO_XFER_OPEN_RETRY_TIMEOUT:
1582 	{	/* This one stashes the sas_task instead */
1583 		struct sas_task *t = (struct sas_task *)pm8001_dev;
1584 		struct pm8001_ccb_info *ccb;
1585 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1586 		unsigned long flags, flags1;
1587 		int i, ret = 0;
1588 
1589 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
1590 
1591 		ret = pm8001_query_task(t);
1592 
1593 		if (ret == TMF_RESP_FUNC_SUCC)
1594 			pm8001_dbg(pm8001_ha, IO, "...Task on lu\n");
1595 		else if (ret == TMF_RESP_FUNC_COMPLETE)
1596 			pm8001_dbg(pm8001_ha, IO, "...Task NOT on lu\n");
1597 		else
1598 			pm8001_dbg(pm8001_ha, DEVIO, "...query task failed!!!\n");
1599 
1600 		spin_lock_irqsave(&pm8001_ha->lock, flags);
1601 
1602 		spin_lock_irqsave(&t->task_state_lock, flags1);
1603 
1604 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
1605 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1606 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1607 			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
1608 				(void)pm8001_abort_task(t);
1609 			break; /* Task got completed by another */
1610 		}
1611 
1612 		spin_unlock_irqrestore(&t->task_state_lock, flags1);
1613 
1614 		/* Search for a possible ccb that matches the task */
1615 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1616 			ccb = &pm8001_ha->ccb_info[i];
1617 			if ((ccb->ccb_tag != PM8001_INVALID_TAG) &&
1618 			    (ccb->task == t))
1619 				break;
1620 		}
1621 		if (!ccb) {
1622 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1623 			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
1624 				(void)pm8001_abort_task(t);
1625 			break; /* Task got freed by another */
1626 		}
1627 
1628 		pm8001_dev = ccb->device;
1629 		dev = pm8001_dev->sas_device;
1630 
1631 		switch (ret) {
1632 		case TMF_RESP_FUNC_SUCC: /* task on lu */
1633 			ccb->open_retry = 1; /* Snub completion */
1634 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1635 			ret = pm8001_abort_task(t);
1636 			ccb->open_retry = 0;
1637 			switch (ret) {
1638 			case TMF_RESP_FUNC_SUCC:
1639 			case TMF_RESP_FUNC_COMPLETE:
1640 				break;
1641 			default: /* device misbehavior */
1642 				ret = TMF_RESP_FUNC_FAILED;
1643 				pm8001_dbg(pm8001_ha, IO, "...Reset phy\n");
1644 				pm8001_I_T_nexus_reset(dev);
1645 				break;
1646 			}
1647 			break;
1648 
1649 		case TMF_RESP_FUNC_COMPLETE: /* task not on lu */
1650 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1651 			/* Do we need to abort the task locally? */
1652 			break;
1653 
1654 		default: /* device misbehavior */
1655 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1656 			ret = TMF_RESP_FUNC_FAILED;
1657 			pm8001_dbg(pm8001_ha, IO, "...Reset phy\n");
1658 			pm8001_I_T_nexus_reset(dev);
1659 		}
1660 
1661 		if (ret == TMF_RESP_FUNC_FAILED)
1662 			t = NULL;
1663 		pm8001_open_reject_retry(pm8001_ha, t, pm8001_dev);
1664 		pm8001_dbg(pm8001_ha, IO, "...Complete\n");
1665 	}	break;
1666 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
1667 		dev = pm8001_dev->sas_device;
1668 		pm8001_I_T_nexus_event_handler(dev);
1669 		break;
1670 	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
1671 		dev = pm8001_dev->sas_device;
1672 		pm8001_I_T_nexus_reset(dev);
1673 		break;
1674 	case IO_DS_IN_ERROR:
1675 		dev = pm8001_dev->sas_device;
1676 		pm8001_I_T_nexus_reset(dev);
1677 		break;
1678 	case IO_DS_NON_OPERATIONAL:
1679 		dev = pm8001_dev->sas_device;
1680 		pm8001_I_T_nexus_reset(dev);
1681 		break;
1682 	case IO_FATAL_ERROR:
1683 	{
1684 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1685 		struct pm8001_ccb_info *ccb;
1686 		struct task_status_struct *ts;
1687 		struct sas_task *task;
1688 		int i;
1689 		u32 device_id;
1690 
1691 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1692 			ccb = &pm8001_ha->ccb_info[i];
1693 			task = ccb->task;
1694 			ts = &task->task_status;
1695 
1696 			if (task != NULL) {
1697 				dev = task->dev;
1698 				if (!dev) {
1699 					pm8001_dbg(pm8001_ha, FAIL,
1700 						"dev is NULL\n");
1701 					continue;
1702 				}
1703 				/*complete sas task and update to top layer */
1704 				pm8001_ccb_task_free(pm8001_ha, ccb);
1705 				ts->resp = SAS_TASK_COMPLETE;
1706 				task->task_done(task);
1707 			} else if (ccb->ccb_tag != PM8001_INVALID_TAG) {
1708 				/* complete the internal commands/non-sas task */
1709 				pm8001_dev = ccb->device;
1710 				if (pm8001_dev->dcompletion) {
1711 					complete(pm8001_dev->dcompletion);
1712 					pm8001_dev->dcompletion = NULL;
1713 				}
1714 				complete(pm8001_ha->nvmd_completion);
1715 				pm8001_ccb_free(pm8001_ha, ccb);
1716 			}
1717 		}
1718 		/* Deregister all the device ids  */
1719 		for (i = 0; i < PM8001_MAX_DEVICES; i++) {
1720 			pm8001_dev = &pm8001_ha->devices[i];
1721 			device_id = pm8001_dev->device_id;
1722 			if (device_id) {
1723 				PM8001_CHIP_DISP->dereg_dev_req(pm8001_ha, device_id);
1724 				pm8001_free_dev(pm8001_dev);
1725 			}
1726 		}
1727 	}
1728 	break;
1729 	case IO_XFER_ERROR_ABORTED_NCQ_MODE:
1730 	{
1731 		dev = pm8001_dev->sas_device;
1732 		sas_ata_device_link_abort(dev, false);
1733 	}
1734 	break;
1735 	}
1736 	kfree(pw);
1737 }
1738 
1739 int pm8001_handle_event(struct pm8001_hba_info *pm8001_ha, void *data,
1740 			       int handler)
1741 {
1742 	struct pm8001_work *pw;
1743 	int ret = 0;
1744 
1745 	pw = kmalloc(sizeof(struct pm8001_work), GFP_ATOMIC);
1746 	if (pw) {
1747 		pw->pm8001_ha = pm8001_ha;
1748 		pw->data = data;
1749 		pw->handler = handler;
1750 		INIT_WORK(&pw->work, pm8001_work_fn);
1751 		queue_work(pm8001_wq, &pw->work);
1752 	} else
1753 		ret = -ENOMEM;
1754 
1755 	return ret;
1756 }
1757 
1758 /**
1759  * mpi_ssp_completion- process the event that FW response to the SSP request.
1760  * @pm8001_ha: our hba card information
1761  * @piomb: the message contents of this outbound message.
1762  *
1763  * When FW has completed a ssp request for example a IO request, after it has
1764  * filled the SG data with the data, it will trigger this event representing
1765  * that he has finished the job; please check the corresponding buffer.
1766  * So we will tell the caller who maybe waiting the result to tell upper layer
1767  * that the task has been finished.
1768  */
1769 static void
1770 mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
1771 {
1772 	struct sas_task *t;
1773 	struct pm8001_ccb_info *ccb;
1774 	unsigned long flags;
1775 	u32 status;
1776 	u32 param;
1777 	u32 tag;
1778 	struct ssp_completion_resp *psspPayload;
1779 	struct task_status_struct *ts;
1780 	struct ssp_response_iu *iu;
1781 	struct pm8001_device *pm8001_dev;
1782 	psspPayload = (struct ssp_completion_resp *)(piomb + 4);
1783 	status = le32_to_cpu(psspPayload->status);
1784 	tag = le32_to_cpu(psspPayload->tag);
1785 	ccb = &pm8001_ha->ccb_info[tag];
1786 	if ((status == IO_ABORTED) && ccb->open_retry) {
1787 		/* Being completed by another */
1788 		ccb->open_retry = 0;
1789 		return;
1790 	}
1791 	pm8001_dev = ccb->device;
1792 	param = le32_to_cpu(psspPayload->param);
1793 
1794 	t = ccb->task;
1795 
1796 	if (status && status != IO_UNDERFLOW)
1797 		pm8001_dbg(pm8001_ha, FAIL, "sas IO status 0x%x\n", status);
1798 	if (unlikely(!t || !t->lldd_task || !t->dev))
1799 		return;
1800 	ts = &t->task_status;
1801 	/* Print sas address of IO failed device */
1802 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
1803 		(status != IO_UNDERFLOW))
1804 		pm8001_dbg(pm8001_ha, FAIL, "SAS Address of IO Failure Drive:%016llx\n",
1805 			   SAS_ADDR(t->dev->sas_addr));
1806 
1807 	if (status)
1808 		pm8001_dbg(pm8001_ha, IOERR,
1809 			   "status:0x%x, tag:0x%x, task:0x%p\n",
1810 			   status, tag, t);
1811 
1812 	switch (status) {
1813 	case IO_SUCCESS:
1814 		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS,param = %d\n",
1815 			   param);
1816 		if (param == 0) {
1817 			ts->resp = SAS_TASK_COMPLETE;
1818 			ts->stat = SAS_SAM_STAT_GOOD;
1819 		} else {
1820 			ts->resp = SAS_TASK_COMPLETE;
1821 			ts->stat = SAS_PROTO_RESPONSE;
1822 			ts->residual = param;
1823 			iu = &psspPayload->ssp_resp_iu;
1824 			sas_ssp_task_response(pm8001_ha->dev, t, iu);
1825 		}
1826 		if (pm8001_dev)
1827 			atomic_dec(&pm8001_dev->running_req);
1828 		break;
1829 	case IO_ABORTED:
1830 		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB Tag\n");
1831 		ts->resp = SAS_TASK_COMPLETE;
1832 		ts->stat = SAS_ABORTED_TASK;
1833 		break;
1834 	case IO_UNDERFLOW:
1835 		/* SSP Completion with error */
1836 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW,param = %d\n",
1837 			   param);
1838 		ts->resp = SAS_TASK_COMPLETE;
1839 		ts->stat = SAS_DATA_UNDERRUN;
1840 		ts->residual = param;
1841 		if (pm8001_dev)
1842 			atomic_dec(&pm8001_dev->running_req);
1843 		break;
1844 	case IO_NO_DEVICE:
1845 		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
1846 		ts->resp = SAS_TASK_UNDELIVERED;
1847 		ts->stat = SAS_PHY_DOWN;
1848 		break;
1849 	case IO_XFER_ERROR_BREAK:
1850 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
1851 		ts->resp = SAS_TASK_COMPLETE;
1852 		ts->stat = SAS_OPEN_REJECT;
1853 		/* Force the midlayer to retry */
1854 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1855 		break;
1856 	case IO_XFER_ERROR_PHY_NOT_READY:
1857 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
1858 		ts->resp = SAS_TASK_COMPLETE;
1859 		ts->stat = SAS_OPEN_REJECT;
1860 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1861 		break;
1862 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
1863 		pm8001_dbg(pm8001_ha, IO,
1864 			   "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
1865 		ts->resp = SAS_TASK_COMPLETE;
1866 		ts->stat = SAS_OPEN_REJECT;
1867 		ts->open_rej_reason = SAS_OREJ_EPROTO;
1868 		break;
1869 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
1870 		pm8001_dbg(pm8001_ha, IO,
1871 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
1872 		ts->resp = SAS_TASK_COMPLETE;
1873 		ts->stat = SAS_OPEN_REJECT;
1874 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1875 		break;
1876 	case IO_OPEN_CNX_ERROR_BREAK:
1877 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
1878 		ts->resp = SAS_TASK_COMPLETE;
1879 		ts->stat = SAS_OPEN_REJECT;
1880 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1881 		break;
1882 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
1883 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
1884 		ts->resp = SAS_TASK_COMPLETE;
1885 		ts->stat = SAS_OPEN_REJECT;
1886 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1887 		if (!t->uldd_task)
1888 			pm8001_handle_event(pm8001_ha,
1889 				pm8001_dev,
1890 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
1891 		break;
1892 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
1893 		pm8001_dbg(pm8001_ha, IO,
1894 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
1895 		ts->resp = SAS_TASK_COMPLETE;
1896 		ts->stat = SAS_OPEN_REJECT;
1897 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
1898 		break;
1899 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
1900 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
1901 		ts->resp = SAS_TASK_COMPLETE;
1902 		ts->stat = SAS_OPEN_REJECT;
1903 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
1904 		break;
1905 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
1906 		pm8001_dbg(pm8001_ha, IO,
1907 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
1908 		ts->resp = SAS_TASK_UNDELIVERED;
1909 		ts->stat = SAS_OPEN_REJECT;
1910 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
1911 		break;
1912 	case IO_XFER_ERROR_NAK_RECEIVED:
1913 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
1914 		ts->resp = SAS_TASK_COMPLETE;
1915 		ts->stat = SAS_OPEN_REJECT;
1916 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1917 		break;
1918 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
1919 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
1920 		ts->resp = SAS_TASK_COMPLETE;
1921 		ts->stat = SAS_NAK_R_ERR;
1922 		break;
1923 	case IO_XFER_ERROR_DMA:
1924 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_DMA\n");
1925 		ts->resp = SAS_TASK_COMPLETE;
1926 		ts->stat = SAS_OPEN_REJECT;
1927 		break;
1928 	case IO_XFER_OPEN_RETRY_TIMEOUT:
1929 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
1930 		ts->resp = SAS_TASK_COMPLETE;
1931 		ts->stat = SAS_OPEN_REJECT;
1932 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1933 		break;
1934 	case IO_XFER_ERROR_OFFSET_MISMATCH:
1935 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
1936 		ts->resp = SAS_TASK_COMPLETE;
1937 		ts->stat = SAS_OPEN_REJECT;
1938 		break;
1939 	case IO_PORT_IN_RESET:
1940 		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
1941 		ts->resp = SAS_TASK_COMPLETE;
1942 		ts->stat = SAS_OPEN_REJECT;
1943 		break;
1944 	case IO_DS_NON_OPERATIONAL:
1945 		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
1946 		ts->resp = SAS_TASK_COMPLETE;
1947 		ts->stat = SAS_OPEN_REJECT;
1948 		if (!t->uldd_task)
1949 			pm8001_handle_event(pm8001_ha,
1950 				pm8001_dev,
1951 				IO_DS_NON_OPERATIONAL);
1952 		break;
1953 	case IO_DS_IN_RECOVERY:
1954 		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_RECOVERY\n");
1955 		ts->resp = SAS_TASK_COMPLETE;
1956 		ts->stat = SAS_OPEN_REJECT;
1957 		break;
1958 	case IO_TM_TAG_NOT_FOUND:
1959 		pm8001_dbg(pm8001_ha, IO, "IO_TM_TAG_NOT_FOUND\n");
1960 		ts->resp = SAS_TASK_COMPLETE;
1961 		ts->stat = SAS_OPEN_REJECT;
1962 		break;
1963 	case IO_SSP_EXT_IU_ZERO_LEN_ERROR:
1964 		pm8001_dbg(pm8001_ha, IO, "IO_SSP_EXT_IU_ZERO_LEN_ERROR\n");
1965 		ts->resp = SAS_TASK_COMPLETE;
1966 		ts->stat = SAS_OPEN_REJECT;
1967 		break;
1968 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
1969 		pm8001_dbg(pm8001_ha, IO,
1970 			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
1971 		ts->resp = SAS_TASK_COMPLETE;
1972 		ts->stat = SAS_OPEN_REJECT;
1973 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1974 		break;
1975 	default:
1976 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
1977 		/* not allowed case. Therefore, return failed status */
1978 		ts->resp = SAS_TASK_COMPLETE;
1979 		ts->stat = SAS_OPEN_REJECT;
1980 		break;
1981 	}
1982 	pm8001_dbg(pm8001_ha, IO, "scsi_status = %x\n",
1983 		   psspPayload->ssp_resp_iu.status);
1984 	spin_lock_irqsave(&t->task_state_lock, flags);
1985 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
1986 	t->task_state_flags |= SAS_TASK_STATE_DONE;
1987 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
1988 		spin_unlock_irqrestore(&t->task_state_lock, flags);
1989 		pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
1990 			   t, status, ts->resp, ts->stat);
1991 		pm8001_ccb_task_free(pm8001_ha, ccb);
1992 	} else {
1993 		spin_unlock_irqrestore(&t->task_state_lock, flags);
1994 		pm8001_ccb_task_free(pm8001_ha, ccb);
1995 		mb();/* in order to force CPU ordering */
1996 		t->task_done(t);
1997 	}
1998 }
1999 
2000 /*See the comments for mpi_ssp_completion */
2001 static void mpi_ssp_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
2002 {
2003 	struct sas_task *t;
2004 	unsigned long flags;
2005 	struct task_status_struct *ts;
2006 	struct pm8001_ccb_info *ccb;
2007 	struct pm8001_device *pm8001_dev;
2008 	struct ssp_event_resp *psspPayload =
2009 		(struct ssp_event_resp *)(piomb + 4);
2010 	u32 event = le32_to_cpu(psspPayload->event);
2011 	u32 tag = le32_to_cpu(psspPayload->tag);
2012 	u32 port_id = le32_to_cpu(psspPayload->port_id);
2013 	u32 dev_id = le32_to_cpu(psspPayload->device_id);
2014 
2015 	ccb = &pm8001_ha->ccb_info[tag];
2016 	t = ccb->task;
2017 	pm8001_dev = ccb->device;
2018 	if (event)
2019 		pm8001_dbg(pm8001_ha, FAIL, "sas IO status 0x%x\n", event);
2020 	if (unlikely(!t || !t->lldd_task || !t->dev))
2021 		return;
2022 	ts = &t->task_status;
2023 	pm8001_dbg(pm8001_ha, DEVIO, "port_id = %x,device_id = %x\n",
2024 		   port_id, dev_id);
2025 	switch (event) {
2026 	case IO_OVERFLOW:
2027 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
2028 		ts->resp = SAS_TASK_COMPLETE;
2029 		ts->stat = SAS_DATA_OVERRUN;
2030 		ts->residual = 0;
2031 		if (pm8001_dev)
2032 			atomic_dec(&pm8001_dev->running_req);
2033 		break;
2034 	case IO_XFER_ERROR_BREAK:
2035 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2036 		pm8001_handle_event(pm8001_ha, t, IO_XFER_ERROR_BREAK);
2037 		return;
2038 	case IO_XFER_ERROR_PHY_NOT_READY:
2039 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
2040 		ts->resp = SAS_TASK_COMPLETE;
2041 		ts->stat = SAS_OPEN_REJECT;
2042 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2043 		break;
2044 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2045 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2046 		ts->resp = SAS_TASK_COMPLETE;
2047 		ts->stat = SAS_OPEN_REJECT;
2048 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2049 		break;
2050 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2051 		pm8001_dbg(pm8001_ha, IO,
2052 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2053 		ts->resp = SAS_TASK_COMPLETE;
2054 		ts->stat = SAS_OPEN_REJECT;
2055 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2056 		break;
2057 	case IO_OPEN_CNX_ERROR_BREAK:
2058 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2059 		ts->resp = SAS_TASK_COMPLETE;
2060 		ts->stat = SAS_OPEN_REJECT;
2061 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2062 		break;
2063 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2064 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2065 		ts->resp = SAS_TASK_COMPLETE;
2066 		ts->stat = SAS_OPEN_REJECT;
2067 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2068 		if (!t->uldd_task)
2069 			pm8001_handle_event(pm8001_ha,
2070 				pm8001_dev,
2071 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2072 		break;
2073 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2074 		pm8001_dbg(pm8001_ha, IO,
2075 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2076 		ts->resp = SAS_TASK_COMPLETE;
2077 		ts->stat = SAS_OPEN_REJECT;
2078 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2079 		break;
2080 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2081 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2082 		ts->resp = SAS_TASK_COMPLETE;
2083 		ts->stat = SAS_OPEN_REJECT;
2084 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2085 		break;
2086 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2087 		pm8001_dbg(pm8001_ha, IO,
2088 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2089 		ts->resp = SAS_TASK_COMPLETE;
2090 		ts->stat = SAS_OPEN_REJECT;
2091 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2092 		break;
2093 	case IO_XFER_ERROR_NAK_RECEIVED:
2094 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
2095 		ts->resp = SAS_TASK_COMPLETE;
2096 		ts->stat = SAS_OPEN_REJECT;
2097 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2098 		break;
2099 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2100 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
2101 		ts->resp = SAS_TASK_COMPLETE;
2102 		ts->stat = SAS_NAK_R_ERR;
2103 		break;
2104 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2105 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2106 		pm8001_handle_event(pm8001_ha, t, IO_XFER_OPEN_RETRY_TIMEOUT);
2107 		return;
2108 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2109 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_UNEXPECTED_PHASE\n");
2110 		ts->resp = SAS_TASK_COMPLETE;
2111 		ts->stat = SAS_DATA_OVERRUN;
2112 		break;
2113 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2114 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_XFER_RDY_OVERRUN\n");
2115 		ts->resp = SAS_TASK_COMPLETE;
2116 		ts->stat = SAS_DATA_OVERRUN;
2117 		break;
2118 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2119 		pm8001_dbg(pm8001_ha, IO,
2120 			   "IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n");
2121 		ts->resp = SAS_TASK_COMPLETE;
2122 		ts->stat = SAS_DATA_OVERRUN;
2123 		break;
2124 	case IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT:
2125 		pm8001_dbg(pm8001_ha, IO,
2126 			   "IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT\n");
2127 		ts->resp = SAS_TASK_COMPLETE;
2128 		ts->stat = SAS_DATA_OVERRUN;
2129 		break;
2130 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2131 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
2132 		ts->resp = SAS_TASK_COMPLETE;
2133 		ts->stat = SAS_DATA_OVERRUN;
2134 		break;
2135 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2136 		pm8001_dbg(pm8001_ha, IO,
2137 			   "IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n");
2138 		ts->resp = SAS_TASK_COMPLETE;
2139 		ts->stat = SAS_DATA_OVERRUN;
2140 		break;
2141 	case IO_XFER_CMD_FRAME_ISSUED:
2142 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_CMD_FRAME_ISSUED\n");
2143 		return;
2144 	default:
2145 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", event);
2146 		/* not allowed case. Therefore, return failed status */
2147 		ts->resp = SAS_TASK_COMPLETE;
2148 		ts->stat = SAS_DATA_OVERRUN;
2149 		break;
2150 	}
2151 	spin_lock_irqsave(&t->task_state_lock, flags);
2152 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2153 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2154 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2155 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2156 		pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with event 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
2157 			   t, event, ts->resp, ts->stat);
2158 		pm8001_ccb_task_free(pm8001_ha, ccb);
2159 	} else {
2160 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2161 		pm8001_ccb_task_free(pm8001_ha, ccb);
2162 		mb();/* in order to force CPU ordering */
2163 		t->task_done(t);
2164 	}
2165 }
2166 
2167 /*See the comments for mpi_ssp_completion */
2168 static void
2169 mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2170 {
2171 	struct sas_task *t;
2172 	struct pm8001_ccb_info *ccb;
2173 	u32 param;
2174 	u32 status;
2175 	u32 tag;
2176 	int i, j;
2177 	u8 sata_addr_low[4];
2178 	u32 temp_sata_addr_low;
2179 	u8 sata_addr_hi[4];
2180 	u32 temp_sata_addr_hi;
2181 	struct sata_completion_resp *psataPayload;
2182 	struct task_status_struct *ts;
2183 	struct ata_task_resp *resp ;
2184 	u32 *sata_resp;
2185 	struct pm8001_device *pm8001_dev;
2186 	unsigned long flags;
2187 
2188 	psataPayload = (struct sata_completion_resp *)(piomb + 4);
2189 	status = le32_to_cpu(psataPayload->status);
2190 	param = le32_to_cpu(psataPayload->param);
2191 	tag = le32_to_cpu(psataPayload->tag);
2192 
2193 	ccb = &pm8001_ha->ccb_info[tag];
2194 	t = ccb->task;
2195 	pm8001_dev = ccb->device;
2196 
2197 	if (t) {
2198 		if (t->dev && (t->dev->lldd_dev))
2199 			pm8001_dev = t->dev->lldd_dev;
2200 	} else {
2201 		pm8001_dbg(pm8001_ha, FAIL, "task null, freeing CCB tag %d\n",
2202 			   ccb->ccb_tag);
2203 		pm8001_ccb_free(pm8001_ha, ccb);
2204 		return;
2205 	}
2206 
2207 	if (pm8001_dev && unlikely(!t || !t->lldd_task || !t->dev)) {
2208 		pm8001_dbg(pm8001_ha, FAIL, "task or dev null\n");
2209 		return;
2210 	}
2211 
2212 	ts = &t->task_status;
2213 
2214 	if (status)
2215 		pm8001_dbg(pm8001_ha, IOERR,
2216 			   "status:0x%x, tag:0x%x, task::0x%p\n",
2217 			   status, tag, t);
2218 
2219 	/* Print sas address of IO failed device */
2220 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
2221 		(status != IO_UNDERFLOW)) {
2222 		if (!((t->dev->parent) &&
2223 			(dev_is_expander(t->dev->parent->dev_type)))) {
2224 			for (i = 0, j = 4; j <= 7 && i <= 3; i++, j++)
2225 				sata_addr_low[i] = pm8001_ha->sas_addr[j];
2226 			for (i = 0, j = 0; j <= 3 && i <= 3; i++, j++)
2227 				sata_addr_hi[i] = pm8001_ha->sas_addr[j];
2228 			memcpy(&temp_sata_addr_low, sata_addr_low,
2229 				sizeof(sata_addr_low));
2230 			memcpy(&temp_sata_addr_hi, sata_addr_hi,
2231 				sizeof(sata_addr_hi));
2232 			temp_sata_addr_hi = (((temp_sata_addr_hi >> 24) & 0xff)
2233 						|((temp_sata_addr_hi << 8) &
2234 						0xff0000) |
2235 						((temp_sata_addr_hi >> 8)
2236 						& 0xff00) |
2237 						((temp_sata_addr_hi << 24) &
2238 						0xff000000));
2239 			temp_sata_addr_low = ((((temp_sata_addr_low >> 24)
2240 						& 0xff) |
2241 						((temp_sata_addr_low << 8)
2242 						& 0xff0000) |
2243 						((temp_sata_addr_low >> 8)
2244 						& 0xff00) |
2245 						((temp_sata_addr_low << 24)
2246 						& 0xff000000)) +
2247 						pm8001_dev->attached_phy +
2248 						0x10);
2249 			pm8001_dbg(pm8001_ha, FAIL,
2250 				   "SAS Address of IO Failure Drive:%08x%08x\n",
2251 				   temp_sata_addr_hi,
2252 				   temp_sata_addr_low);
2253 		} else {
2254 			pm8001_dbg(pm8001_ha, FAIL,
2255 				   "SAS Address of IO Failure Drive:%016llx\n",
2256 				   SAS_ADDR(t->dev->sas_addr));
2257 		}
2258 	}
2259 	switch (status) {
2260 	case IO_SUCCESS:
2261 		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
2262 		if (param == 0) {
2263 			ts->resp = SAS_TASK_COMPLETE;
2264 			ts->stat = SAS_SAM_STAT_GOOD;
2265 		} else {
2266 			u8 len;
2267 			ts->resp = SAS_TASK_COMPLETE;
2268 			ts->stat = SAS_PROTO_RESPONSE;
2269 			ts->residual = param;
2270 			pm8001_dbg(pm8001_ha, IO,
2271 				   "SAS_PROTO_RESPONSE len = %d\n",
2272 				   param);
2273 			sata_resp = &psataPayload->sata_resp[0];
2274 			resp = (struct ata_task_resp *)ts->buf;
2275 			if (t->ata_task.dma_xfer == 0 &&
2276 			    t->data_dir == DMA_FROM_DEVICE) {
2277 				len = sizeof(struct pio_setup_fis);
2278 				pm8001_dbg(pm8001_ha, IO,
2279 					   "PIO read len = %d\n", len);
2280 			} else if (t->ata_task.use_ncq &&
2281 				   t->data_dir != DMA_NONE) {
2282 				len = sizeof(struct set_dev_bits_fis);
2283 				pm8001_dbg(pm8001_ha, IO, "FPDMA len = %d\n",
2284 					   len);
2285 			} else {
2286 				len = sizeof(struct dev_to_host_fis);
2287 				pm8001_dbg(pm8001_ha, IO, "other len = %d\n",
2288 					   len);
2289 			}
2290 			if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) {
2291 				resp->frame_len = len;
2292 				memcpy(&resp->ending_fis[0], sata_resp, len);
2293 				ts->buf_valid_size = sizeof(*resp);
2294 			} else
2295 				pm8001_dbg(pm8001_ha, IO,
2296 					   "response too large\n");
2297 		}
2298 		if (pm8001_dev)
2299 			atomic_dec(&pm8001_dev->running_req);
2300 		break;
2301 	case IO_ABORTED:
2302 		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB Tag\n");
2303 		ts->resp = SAS_TASK_COMPLETE;
2304 		ts->stat = SAS_ABORTED_TASK;
2305 		if (pm8001_dev)
2306 			atomic_dec(&pm8001_dev->running_req);
2307 		break;
2308 		/* following cases are to do cases */
2309 	case IO_UNDERFLOW:
2310 		/* SATA Completion with error */
2311 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW param = %d\n", param);
2312 		ts->resp = SAS_TASK_COMPLETE;
2313 		ts->stat = SAS_DATA_UNDERRUN;
2314 		ts->residual =  param;
2315 		if (pm8001_dev)
2316 			atomic_dec(&pm8001_dev->running_req);
2317 		break;
2318 	case IO_NO_DEVICE:
2319 		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
2320 		ts->resp = SAS_TASK_UNDELIVERED;
2321 		ts->stat = SAS_PHY_DOWN;
2322 		if (pm8001_dev)
2323 			atomic_dec(&pm8001_dev->running_req);
2324 		break;
2325 	case IO_XFER_ERROR_BREAK:
2326 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2327 		ts->resp = SAS_TASK_COMPLETE;
2328 		ts->stat = SAS_INTERRUPTED;
2329 		if (pm8001_dev)
2330 			atomic_dec(&pm8001_dev->running_req);
2331 		break;
2332 	case IO_XFER_ERROR_PHY_NOT_READY:
2333 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
2334 		ts->resp = SAS_TASK_COMPLETE;
2335 		ts->stat = SAS_OPEN_REJECT;
2336 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2337 		if (pm8001_dev)
2338 			atomic_dec(&pm8001_dev->running_req);
2339 		break;
2340 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2341 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2342 		ts->resp = SAS_TASK_COMPLETE;
2343 		ts->stat = SAS_OPEN_REJECT;
2344 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2345 		if (pm8001_dev)
2346 			atomic_dec(&pm8001_dev->running_req);
2347 		break;
2348 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2349 		pm8001_dbg(pm8001_ha, IO,
2350 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2351 		ts->resp = SAS_TASK_COMPLETE;
2352 		ts->stat = SAS_OPEN_REJECT;
2353 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2354 		if (pm8001_dev)
2355 			atomic_dec(&pm8001_dev->running_req);
2356 		break;
2357 	case IO_OPEN_CNX_ERROR_BREAK:
2358 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2359 		ts->resp = SAS_TASK_COMPLETE;
2360 		ts->stat = SAS_OPEN_REJECT;
2361 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2362 		if (pm8001_dev)
2363 			atomic_dec(&pm8001_dev->running_req);
2364 		break;
2365 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2366 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2367 		ts->resp = SAS_TASK_COMPLETE;
2368 		ts->stat = SAS_DEV_NO_RESPONSE;
2369 		if (!t->uldd_task) {
2370 			pm8001_handle_event(pm8001_ha,
2371 				pm8001_dev,
2372 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2373 			ts->resp = SAS_TASK_UNDELIVERED;
2374 			ts->stat = SAS_QUEUE_FULL;
2375 			pm8001_ccb_task_free_done(pm8001_ha, ccb);
2376 			return;
2377 		}
2378 		break;
2379 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2380 		pm8001_dbg(pm8001_ha, IO,
2381 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2382 		ts->resp = SAS_TASK_UNDELIVERED;
2383 		ts->stat = SAS_OPEN_REJECT;
2384 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2385 		if (!t->uldd_task) {
2386 			pm8001_handle_event(pm8001_ha,
2387 				pm8001_dev,
2388 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2389 			ts->resp = SAS_TASK_UNDELIVERED;
2390 			ts->stat = SAS_QUEUE_FULL;
2391 			pm8001_ccb_task_free_done(pm8001_ha, ccb);
2392 			return;
2393 		}
2394 		break;
2395 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2396 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2397 		ts->resp = SAS_TASK_COMPLETE;
2398 		ts->stat = SAS_OPEN_REJECT;
2399 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2400 		if (pm8001_dev)
2401 			atomic_dec(&pm8001_dev->running_req);
2402 		break;
2403 	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
2404 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY\n");
2405 		ts->resp = SAS_TASK_COMPLETE;
2406 		ts->stat = SAS_DEV_NO_RESPONSE;
2407 		if (!t->uldd_task) {
2408 			pm8001_handle_event(pm8001_ha,
2409 				pm8001_dev,
2410 				IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY);
2411 			ts->resp = SAS_TASK_UNDELIVERED;
2412 			ts->stat = SAS_QUEUE_FULL;
2413 			pm8001_ccb_task_free_done(pm8001_ha, ccb);
2414 			return;
2415 		}
2416 		break;
2417 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2418 		pm8001_dbg(pm8001_ha, IO,
2419 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2420 		ts->resp = SAS_TASK_COMPLETE;
2421 		ts->stat = SAS_OPEN_REJECT;
2422 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2423 		if (pm8001_dev)
2424 			atomic_dec(&pm8001_dev->running_req);
2425 		break;
2426 	case IO_XFER_ERROR_NAK_RECEIVED:
2427 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
2428 		ts->resp = SAS_TASK_COMPLETE;
2429 		ts->stat = SAS_NAK_R_ERR;
2430 		if (pm8001_dev)
2431 			atomic_dec(&pm8001_dev->running_req);
2432 		break;
2433 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2434 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
2435 		ts->resp = SAS_TASK_COMPLETE;
2436 		ts->stat = SAS_NAK_R_ERR;
2437 		if (pm8001_dev)
2438 			atomic_dec(&pm8001_dev->running_req);
2439 		break;
2440 	case IO_XFER_ERROR_DMA:
2441 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_DMA\n");
2442 		ts->resp = SAS_TASK_COMPLETE;
2443 		ts->stat = SAS_ABORTED_TASK;
2444 		if (pm8001_dev)
2445 			atomic_dec(&pm8001_dev->running_req);
2446 		break;
2447 	case IO_XFER_ERROR_SATA_LINK_TIMEOUT:
2448 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_SATA_LINK_TIMEOUT\n");
2449 		ts->resp = SAS_TASK_UNDELIVERED;
2450 		ts->stat = SAS_DEV_NO_RESPONSE;
2451 		if (pm8001_dev)
2452 			atomic_dec(&pm8001_dev->running_req);
2453 		break;
2454 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2455 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_REJECTED_NCQ_MODE\n");
2456 		ts->resp = SAS_TASK_COMPLETE;
2457 		ts->stat = SAS_DATA_UNDERRUN;
2458 		if (pm8001_dev)
2459 			atomic_dec(&pm8001_dev->running_req);
2460 		break;
2461 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2462 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2463 		ts->resp = SAS_TASK_COMPLETE;
2464 		ts->stat = SAS_OPEN_TO;
2465 		if (pm8001_dev)
2466 			atomic_dec(&pm8001_dev->running_req);
2467 		break;
2468 	case IO_PORT_IN_RESET:
2469 		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
2470 		ts->resp = SAS_TASK_COMPLETE;
2471 		ts->stat = SAS_DEV_NO_RESPONSE;
2472 		if (pm8001_dev)
2473 			atomic_dec(&pm8001_dev->running_req);
2474 		break;
2475 	case IO_DS_NON_OPERATIONAL:
2476 		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
2477 		ts->resp = SAS_TASK_COMPLETE;
2478 		ts->stat = SAS_DEV_NO_RESPONSE;
2479 		if (!t->uldd_task) {
2480 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2481 				    IO_DS_NON_OPERATIONAL);
2482 			ts->resp = SAS_TASK_UNDELIVERED;
2483 			ts->stat = SAS_QUEUE_FULL;
2484 			pm8001_ccb_task_free_done(pm8001_ha, ccb);
2485 			return;
2486 		}
2487 		break;
2488 	case IO_DS_IN_RECOVERY:
2489 		pm8001_dbg(pm8001_ha, IO, "  IO_DS_IN_RECOVERY\n");
2490 		ts->resp = SAS_TASK_COMPLETE;
2491 		ts->stat = SAS_DEV_NO_RESPONSE;
2492 		if (pm8001_dev)
2493 			atomic_dec(&pm8001_dev->running_req);
2494 		break;
2495 	case IO_DS_IN_ERROR:
2496 		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_ERROR\n");
2497 		ts->resp = SAS_TASK_COMPLETE;
2498 		ts->stat = SAS_DEV_NO_RESPONSE;
2499 		if (!t->uldd_task) {
2500 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2501 				    IO_DS_IN_ERROR);
2502 			ts->resp = SAS_TASK_UNDELIVERED;
2503 			ts->stat = SAS_QUEUE_FULL;
2504 			pm8001_ccb_task_free_done(pm8001_ha, ccb);
2505 			return;
2506 		}
2507 		break;
2508 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2509 		pm8001_dbg(pm8001_ha, IO,
2510 			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
2511 		ts->resp = SAS_TASK_COMPLETE;
2512 		ts->stat = SAS_OPEN_REJECT;
2513 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2514 		if (pm8001_dev)
2515 			atomic_dec(&pm8001_dev->running_req);
2516 		break;
2517 	default:
2518 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
2519 		/* not allowed case. Therefore, return failed status */
2520 		ts->resp = SAS_TASK_COMPLETE;
2521 		ts->stat = SAS_DEV_NO_RESPONSE;
2522 		if (pm8001_dev)
2523 			atomic_dec(&pm8001_dev->running_req);
2524 		break;
2525 	}
2526 	spin_lock_irqsave(&t->task_state_lock, flags);
2527 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2528 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2529 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2530 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2531 		pm8001_dbg(pm8001_ha, FAIL,
2532 			   "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
2533 			   t, status, ts->resp, ts->stat);
2534 		pm8001_ccb_task_free(pm8001_ha, ccb);
2535 	} else {
2536 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2537 		pm8001_ccb_task_free_done(pm8001_ha, ccb);
2538 	}
2539 }
2540 
2541 /*See the comments for mpi_ssp_completion */
2542 static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
2543 {
2544 	struct sas_task *t;
2545 	struct task_status_struct *ts;
2546 	struct pm8001_ccb_info *ccb;
2547 	struct pm8001_device *pm8001_dev;
2548 	struct sata_event_resp *psataPayload =
2549 		(struct sata_event_resp *)(piomb + 4);
2550 	u32 event = le32_to_cpu(psataPayload->event);
2551 	u32 tag = le32_to_cpu(psataPayload->tag);
2552 	u32 port_id = le32_to_cpu(psataPayload->port_id);
2553 	u32 dev_id = le32_to_cpu(psataPayload->device_id);
2554 
2555 	if (event)
2556 		pm8001_dbg(pm8001_ha, FAIL, "SATA EVENT 0x%x\n", event);
2557 
2558 	/* Check if this is NCQ error */
2559 	if (event == IO_XFER_ERROR_ABORTED_NCQ_MODE) {
2560 		/* find device using device id */
2561 		pm8001_dev = pm8001_find_dev(pm8001_ha, dev_id);
2562 		if (pm8001_dev)
2563 			pm8001_handle_event(pm8001_ha,
2564 				pm8001_dev,
2565 				IO_XFER_ERROR_ABORTED_NCQ_MODE);
2566 		return;
2567 	}
2568 
2569 	ccb = &pm8001_ha->ccb_info[tag];
2570 	t = ccb->task;
2571 	pm8001_dev = ccb->device;
2572 	if (event)
2573 		pm8001_dbg(pm8001_ha, FAIL, "sata IO status 0x%x\n", event);
2574 
2575 	if (unlikely(!t)) {
2576 		pm8001_dbg(pm8001_ha, FAIL, "task null, freeing CCB tag %d\n",
2577 			   ccb->ccb_tag);
2578 		pm8001_ccb_free(pm8001_ha, ccb);
2579 		return;
2580 	}
2581 
2582 	if (unlikely(!t->lldd_task || !t->dev))
2583 		return;
2584 
2585 	ts = &t->task_status;
2586 	pm8001_dbg(pm8001_ha, DEVIO,
2587 		   "port_id:0x%x, device_id:0x%x, tag:0x%x, event:0x%x\n",
2588 		   port_id, dev_id, tag, event);
2589 	switch (event) {
2590 	case IO_OVERFLOW:
2591 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
2592 		ts->resp = SAS_TASK_COMPLETE;
2593 		ts->stat = SAS_DATA_OVERRUN;
2594 		ts->residual = 0;
2595 		break;
2596 	case IO_XFER_ERROR_BREAK:
2597 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2598 		ts->resp = SAS_TASK_COMPLETE;
2599 		ts->stat = SAS_INTERRUPTED;
2600 		break;
2601 	case IO_XFER_ERROR_PHY_NOT_READY:
2602 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
2603 		ts->resp = SAS_TASK_COMPLETE;
2604 		ts->stat = SAS_OPEN_REJECT;
2605 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2606 		break;
2607 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2608 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2609 		ts->resp = SAS_TASK_COMPLETE;
2610 		ts->stat = SAS_OPEN_REJECT;
2611 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2612 		break;
2613 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2614 		pm8001_dbg(pm8001_ha, IO,
2615 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2616 		ts->resp = SAS_TASK_COMPLETE;
2617 		ts->stat = SAS_OPEN_REJECT;
2618 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2619 		break;
2620 	case IO_OPEN_CNX_ERROR_BREAK:
2621 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2622 		ts->resp = SAS_TASK_COMPLETE;
2623 		ts->stat = SAS_OPEN_REJECT;
2624 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2625 		break;
2626 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2627 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2628 		ts->resp = SAS_TASK_UNDELIVERED;
2629 		ts->stat = SAS_DEV_NO_RESPONSE;
2630 		if (!t->uldd_task) {
2631 			pm8001_handle_event(pm8001_ha,
2632 				pm8001_dev,
2633 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2634 			ts->resp = SAS_TASK_COMPLETE;
2635 			ts->stat = SAS_QUEUE_FULL;
2636 			return;
2637 		}
2638 		break;
2639 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2640 		pm8001_dbg(pm8001_ha, IO,
2641 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2642 		ts->resp = SAS_TASK_UNDELIVERED;
2643 		ts->stat = SAS_OPEN_REJECT;
2644 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2645 		break;
2646 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2647 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2648 		ts->resp = SAS_TASK_COMPLETE;
2649 		ts->stat = SAS_OPEN_REJECT;
2650 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2651 		break;
2652 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2653 		pm8001_dbg(pm8001_ha, IO,
2654 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2655 		ts->resp = SAS_TASK_COMPLETE;
2656 		ts->stat = SAS_OPEN_REJECT;
2657 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2658 		break;
2659 	case IO_XFER_ERROR_NAK_RECEIVED:
2660 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
2661 		ts->resp = SAS_TASK_COMPLETE;
2662 		ts->stat = SAS_NAK_R_ERR;
2663 		break;
2664 	case IO_XFER_ERROR_PEER_ABORTED:
2665 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PEER_ABORTED\n");
2666 		ts->resp = SAS_TASK_COMPLETE;
2667 		ts->stat = SAS_NAK_R_ERR;
2668 		break;
2669 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2670 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_REJECTED_NCQ_MODE\n");
2671 		ts->resp = SAS_TASK_COMPLETE;
2672 		ts->stat = SAS_DATA_UNDERRUN;
2673 		break;
2674 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2675 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2676 		ts->resp = SAS_TASK_COMPLETE;
2677 		ts->stat = SAS_OPEN_TO;
2678 		break;
2679 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2680 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_UNEXPECTED_PHASE\n");
2681 		ts->resp = SAS_TASK_COMPLETE;
2682 		ts->stat = SAS_OPEN_TO;
2683 		break;
2684 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2685 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_XFER_RDY_OVERRUN\n");
2686 		ts->resp = SAS_TASK_COMPLETE;
2687 		ts->stat = SAS_OPEN_TO;
2688 		break;
2689 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2690 		pm8001_dbg(pm8001_ha, IO,
2691 			   "IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n");
2692 		ts->resp = SAS_TASK_COMPLETE;
2693 		ts->stat = SAS_OPEN_TO;
2694 		break;
2695 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2696 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
2697 		ts->resp = SAS_TASK_COMPLETE;
2698 		ts->stat = SAS_OPEN_TO;
2699 		break;
2700 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2701 		pm8001_dbg(pm8001_ha, IO,
2702 			   "IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n");
2703 		ts->resp = SAS_TASK_COMPLETE;
2704 		ts->stat = SAS_OPEN_TO;
2705 		break;
2706 	case IO_XFER_CMD_FRAME_ISSUED:
2707 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_CMD_FRAME_ISSUED\n");
2708 		break;
2709 	case IO_XFER_PIO_SETUP_ERROR:
2710 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_PIO_SETUP_ERROR\n");
2711 		ts->resp = SAS_TASK_COMPLETE;
2712 		ts->stat = SAS_OPEN_TO;
2713 		break;
2714 	default:
2715 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", event);
2716 		/* not allowed case. Therefore, return failed status */
2717 		ts->resp = SAS_TASK_COMPLETE;
2718 		ts->stat = SAS_OPEN_TO;
2719 		break;
2720 	}
2721 }
2722 
2723 /*See the comments for mpi_ssp_completion */
2724 static void
2725 mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2726 {
2727 	struct sas_task *t;
2728 	struct pm8001_ccb_info *ccb;
2729 	unsigned long flags;
2730 	u32 status;
2731 	u32 tag;
2732 	struct smp_completion_resp *psmpPayload;
2733 	struct task_status_struct *ts;
2734 	struct pm8001_device *pm8001_dev;
2735 
2736 	psmpPayload = (struct smp_completion_resp *)(piomb + 4);
2737 	status = le32_to_cpu(psmpPayload->status);
2738 	tag = le32_to_cpu(psmpPayload->tag);
2739 
2740 	ccb = &pm8001_ha->ccb_info[tag];
2741 	t = ccb->task;
2742 	ts = &t->task_status;
2743 	pm8001_dev = ccb->device;
2744 	if (status) {
2745 		pm8001_dbg(pm8001_ha, FAIL, "smp IO status 0x%x\n", status);
2746 		pm8001_dbg(pm8001_ha, IOERR,
2747 			   "status:0x%x, tag:0x%x, task:0x%p\n",
2748 			   status, tag, t);
2749 	}
2750 	if (unlikely(!t || !t->lldd_task || !t->dev))
2751 		return;
2752 
2753 	switch (status) {
2754 	case IO_SUCCESS:
2755 		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
2756 		ts->resp = SAS_TASK_COMPLETE;
2757 		ts->stat = SAS_SAM_STAT_GOOD;
2758 		if (pm8001_dev)
2759 			atomic_dec(&pm8001_dev->running_req);
2760 		break;
2761 	case IO_ABORTED:
2762 		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB\n");
2763 		ts->resp = SAS_TASK_COMPLETE;
2764 		ts->stat = SAS_ABORTED_TASK;
2765 		if (pm8001_dev)
2766 			atomic_dec(&pm8001_dev->running_req);
2767 		break;
2768 	case IO_OVERFLOW:
2769 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
2770 		ts->resp = SAS_TASK_COMPLETE;
2771 		ts->stat = SAS_DATA_OVERRUN;
2772 		ts->residual = 0;
2773 		if (pm8001_dev)
2774 			atomic_dec(&pm8001_dev->running_req);
2775 		break;
2776 	case IO_NO_DEVICE:
2777 		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
2778 		ts->resp = SAS_TASK_COMPLETE;
2779 		ts->stat = SAS_PHY_DOWN;
2780 		break;
2781 	case IO_ERROR_HW_TIMEOUT:
2782 		pm8001_dbg(pm8001_ha, IO, "IO_ERROR_HW_TIMEOUT\n");
2783 		ts->resp = SAS_TASK_COMPLETE;
2784 		ts->stat = SAS_SAM_STAT_BUSY;
2785 		break;
2786 	case IO_XFER_ERROR_BREAK:
2787 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2788 		ts->resp = SAS_TASK_COMPLETE;
2789 		ts->stat = SAS_SAM_STAT_BUSY;
2790 		break;
2791 	case IO_XFER_ERROR_PHY_NOT_READY:
2792 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
2793 		ts->resp = SAS_TASK_COMPLETE;
2794 		ts->stat = SAS_SAM_STAT_BUSY;
2795 		break;
2796 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2797 		pm8001_dbg(pm8001_ha, IO,
2798 			   "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2799 		ts->resp = SAS_TASK_COMPLETE;
2800 		ts->stat = SAS_OPEN_REJECT;
2801 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2802 		break;
2803 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2804 		pm8001_dbg(pm8001_ha, IO,
2805 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2806 		ts->resp = SAS_TASK_COMPLETE;
2807 		ts->stat = SAS_OPEN_REJECT;
2808 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2809 		break;
2810 	case IO_OPEN_CNX_ERROR_BREAK:
2811 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2812 		ts->resp = SAS_TASK_COMPLETE;
2813 		ts->stat = SAS_OPEN_REJECT;
2814 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2815 		break;
2816 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2817 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2818 		ts->resp = SAS_TASK_COMPLETE;
2819 		ts->stat = SAS_OPEN_REJECT;
2820 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2821 		pm8001_handle_event(pm8001_ha,
2822 				pm8001_dev,
2823 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2824 		break;
2825 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2826 		pm8001_dbg(pm8001_ha, IO,
2827 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2828 		ts->resp = SAS_TASK_COMPLETE;
2829 		ts->stat = SAS_OPEN_REJECT;
2830 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2831 		break;
2832 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2833 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2834 		ts->resp = SAS_TASK_COMPLETE;
2835 		ts->stat = SAS_OPEN_REJECT;
2836 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2837 		break;
2838 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2839 		pm8001_dbg(pm8001_ha, IO,
2840 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2841 		ts->resp = SAS_TASK_COMPLETE;
2842 		ts->stat = SAS_OPEN_REJECT;
2843 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2844 		break;
2845 	case IO_XFER_ERROR_RX_FRAME:
2846 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_RX_FRAME\n");
2847 		ts->resp = SAS_TASK_COMPLETE;
2848 		ts->stat = SAS_DEV_NO_RESPONSE;
2849 		break;
2850 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2851 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2852 		ts->resp = SAS_TASK_COMPLETE;
2853 		ts->stat = SAS_OPEN_REJECT;
2854 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2855 		break;
2856 	case IO_ERROR_INTERNAL_SMP_RESOURCE:
2857 		pm8001_dbg(pm8001_ha, IO, "IO_ERROR_INTERNAL_SMP_RESOURCE\n");
2858 		ts->resp = SAS_TASK_COMPLETE;
2859 		ts->stat = SAS_QUEUE_FULL;
2860 		break;
2861 	case IO_PORT_IN_RESET:
2862 		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
2863 		ts->resp = SAS_TASK_COMPLETE;
2864 		ts->stat = SAS_OPEN_REJECT;
2865 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2866 		break;
2867 	case IO_DS_NON_OPERATIONAL:
2868 		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
2869 		ts->resp = SAS_TASK_COMPLETE;
2870 		ts->stat = SAS_DEV_NO_RESPONSE;
2871 		break;
2872 	case IO_DS_IN_RECOVERY:
2873 		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_RECOVERY\n");
2874 		ts->resp = SAS_TASK_COMPLETE;
2875 		ts->stat = SAS_OPEN_REJECT;
2876 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2877 		break;
2878 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2879 		pm8001_dbg(pm8001_ha, IO,
2880 			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
2881 		ts->resp = SAS_TASK_COMPLETE;
2882 		ts->stat = SAS_OPEN_REJECT;
2883 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2884 		break;
2885 	default:
2886 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
2887 		ts->resp = SAS_TASK_COMPLETE;
2888 		ts->stat = SAS_DEV_NO_RESPONSE;
2889 		/* not allowed case. Therefore, return failed status */
2890 		break;
2891 	}
2892 	spin_lock_irqsave(&t->task_state_lock, flags);
2893 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2894 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2895 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2896 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2897 		pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
2898 			   t, status, ts->resp, ts->stat);
2899 		pm8001_ccb_task_free(pm8001_ha, ccb);
2900 	} else {
2901 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2902 		pm8001_ccb_task_free_done(pm8001_ha, ccb);
2903 	}
2904 }
2905 
2906 void pm8001_mpi_set_dev_state_resp(struct pm8001_hba_info *pm8001_ha,
2907 		void *piomb)
2908 {
2909 	struct set_dev_state_resp *pPayload =
2910 		(struct set_dev_state_resp *)(piomb + 4);
2911 	u32 tag = le32_to_cpu(pPayload->tag);
2912 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
2913 	struct pm8001_device *pm8001_dev = ccb->device;
2914 	u32 status = le32_to_cpu(pPayload->status);
2915 	u32 device_id = le32_to_cpu(pPayload->device_id);
2916 	u8 pds = le32_to_cpu(pPayload->pds_nds) & PDS_BITS;
2917 	u8 nds = le32_to_cpu(pPayload->pds_nds) & NDS_BITS;
2918 
2919 	pm8001_dbg(pm8001_ha, MSG,
2920 		   "Set device id = 0x%x state from 0x%x to 0x%x status = 0x%x!\n",
2921 		   device_id, pds, nds, status);
2922 	complete(pm8001_dev->setds_completion);
2923 	pm8001_ccb_free(pm8001_ha, ccb);
2924 }
2925 
2926 void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
2927 {
2928 	struct get_nvm_data_resp *pPayload =
2929 		(struct get_nvm_data_resp *)(piomb + 4);
2930 	u32 tag = le32_to_cpu(pPayload->tag);
2931 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
2932 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
2933 
2934 	complete(pm8001_ha->nvmd_completion);
2935 	pm8001_dbg(pm8001_ha, MSG, "Set nvm data complete!\n");
2936 	if ((dlen_status & NVMD_STAT) != 0) {
2937 		pm8001_dbg(pm8001_ha, FAIL, "Set nvm data error %x\n",
2938 				dlen_status);
2939 	}
2940 	pm8001_ccb_free(pm8001_ha, ccb);
2941 }
2942 
2943 void
2944 pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
2945 {
2946 	struct fw_control_ex    *fw_control_context;
2947 	struct get_nvm_data_resp *pPayload =
2948 		(struct get_nvm_data_resp *)(piomb + 4);
2949 	u32 tag = le32_to_cpu(pPayload->tag);
2950 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
2951 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
2952 	u32 ir_tds_bn_dps_das_nvm =
2953 		le32_to_cpu(pPayload->ir_tda_bn_dps_das_nvm);
2954 	void *virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr;
2955 	fw_control_context = ccb->fw_control_context;
2956 
2957 	pm8001_dbg(pm8001_ha, MSG, "Get nvm data complete!\n");
2958 	if ((dlen_status & NVMD_STAT) != 0) {
2959 		pm8001_dbg(pm8001_ha, FAIL, "Get nvm data error %x\n",
2960 				dlen_status);
2961 		complete(pm8001_ha->nvmd_completion);
2962 		/* We should free tag during failure also, the tag is not being
2963 		 * freed by requesting path anywhere.
2964 		 */
2965 		pm8001_ccb_free(pm8001_ha, ccb);
2966 		return;
2967 	}
2968 	if (ir_tds_bn_dps_das_nvm & IPMode) {
2969 		/* indirect mode - IR bit set */
2970 		pm8001_dbg(pm8001_ha, MSG, "Get NVMD success, IR=1\n");
2971 		if ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == TWI_DEVICE) {
2972 			if (ir_tds_bn_dps_das_nvm == 0x80a80200) {
2973 				memcpy(pm8001_ha->sas_addr,
2974 				      ((u8 *)virt_addr + 4),
2975 				       SAS_ADDR_SIZE);
2976 				pm8001_dbg(pm8001_ha, MSG, "Get SAS address from VPD successfully!\n");
2977 			}
2978 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == C_SEEPROM)
2979 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == VPD_FLASH) ||
2980 			((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == EXPAN_ROM)) {
2981 				;
2982 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == AAP1_RDUMP)
2983 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == IOP_RDUMP)) {
2984 			;
2985 		} else {
2986 			/* Should not be happened*/
2987 			pm8001_dbg(pm8001_ha, MSG,
2988 				   "(IR=1)Wrong Device type 0x%x\n",
2989 				   ir_tds_bn_dps_das_nvm);
2990 		}
2991 	} else /* direct mode */{
2992 		pm8001_dbg(pm8001_ha, MSG,
2993 			   "Get NVMD success, IR=0, dataLen=%d\n",
2994 			   (dlen_status & NVMD_LEN) >> 24);
2995 	}
2996 	/* Though fw_control_context is freed below, usrAddr still needs
2997 	 * to be updated as this holds the response to the request function
2998 	 */
2999 	memcpy(fw_control_context->usrAddr,
3000 		pm8001_ha->memoryMap.region[NVMD].virt_ptr,
3001 		fw_control_context->len);
3002 	kfree(ccb->fw_control_context);
3003 	/* To avoid race condition, complete should be
3004 	 * called after the message is copied to
3005 	 * fw_control_context->usrAddr
3006 	 */
3007 	complete(pm8001_ha->nvmd_completion);
3008 	pm8001_dbg(pm8001_ha, MSG, "Get nvmd data complete!\n");
3009 	pm8001_ccb_free(pm8001_ha, ccb);
3010 }
3011 
3012 int pm8001_mpi_local_phy_ctl(struct pm8001_hba_info *pm8001_ha, void *piomb)
3013 {
3014 	u32 tag;
3015 	struct local_phy_ctl_resp *pPayload =
3016 		(struct local_phy_ctl_resp *)(piomb + 4);
3017 	u32 status = le32_to_cpu(pPayload->status);
3018 	u32 phy_id = le32_to_cpu(pPayload->phyop_phyid) & ID_BITS;
3019 	u32 phy_op = le32_to_cpu(pPayload->phyop_phyid) & OP_BITS;
3020 	tag = le32_to_cpu(pPayload->tag);
3021 	if (status != 0) {
3022 		pm8001_dbg(pm8001_ha, MSG,
3023 			   "%x phy execute %x phy op failed!\n",
3024 			   phy_id, phy_op);
3025 	} else {
3026 		pm8001_dbg(pm8001_ha, MSG,
3027 			   "%x phy execute %x phy op success!\n",
3028 			   phy_id, phy_op);
3029 		pm8001_ha->phy[phy_id].reset_success = true;
3030 	}
3031 	if (pm8001_ha->phy[phy_id].enable_completion) {
3032 		complete(pm8001_ha->phy[phy_id].enable_completion);
3033 		pm8001_ha->phy[phy_id].enable_completion = NULL;
3034 	}
3035 	pm8001_tag_free(pm8001_ha, tag);
3036 	return 0;
3037 }
3038 
3039 /**
3040  * pm8001_bytes_dmaed - one of the interface function communication with libsas
3041  * @pm8001_ha: our hba card information
3042  * @i: which phy that received the event.
3043  *
3044  * when HBA driver received the identify done event or initiate FIS received
3045  * event(for SATA), it will invoke this function to notify the sas layer that
3046  * the sas toplogy has formed, please discover the whole sas domain,
3047  * while receive a broadcast(change) primitive just tell the sas
3048  * layer to discover the changed domain rather than the whole domain.
3049  */
3050 void pm8001_bytes_dmaed(struct pm8001_hba_info *pm8001_ha, int i)
3051 {
3052 	struct pm8001_phy *phy = &pm8001_ha->phy[i];
3053 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
3054 	if (!phy->phy_attached)
3055 		return;
3056 
3057 	if (phy->phy_type & PORT_TYPE_SAS) {
3058 		struct sas_identify_frame *id;
3059 		id = (struct sas_identify_frame *)phy->frame_rcvd;
3060 		id->dev_type = phy->identify.device_type;
3061 		id->initiator_bits = SAS_PROTOCOL_ALL;
3062 		id->target_bits = phy->identify.target_port_protocols;
3063 	} else if (phy->phy_type & PORT_TYPE_SATA) {
3064 		/*Nothing*/
3065 	}
3066 	pm8001_dbg(pm8001_ha, MSG, "phy %d byte dmaded.\n", i);
3067 
3068 	sas_phy->frame_rcvd_size = phy->frame_rcvd_size;
3069 	sas_notify_port_event(sas_phy, PORTE_BYTES_DMAED, GFP_ATOMIC);
3070 }
3071 
3072 /* Get the link rate speed  */
3073 void pm8001_get_lrate_mode(struct pm8001_phy *phy, u8 link_rate)
3074 {
3075 	struct sas_phy *sas_phy = phy->sas_phy.phy;
3076 
3077 	switch (link_rate) {
3078 	case PHY_SPEED_120:
3079 		phy->sas_phy.linkrate = SAS_LINK_RATE_12_0_GBPS;
3080 		break;
3081 	case PHY_SPEED_60:
3082 		phy->sas_phy.linkrate = SAS_LINK_RATE_6_0_GBPS;
3083 		break;
3084 	case PHY_SPEED_30:
3085 		phy->sas_phy.linkrate = SAS_LINK_RATE_3_0_GBPS;
3086 		break;
3087 	case PHY_SPEED_15:
3088 		phy->sas_phy.linkrate = SAS_LINK_RATE_1_5_GBPS;
3089 		break;
3090 	}
3091 	sas_phy->negotiated_linkrate = phy->sas_phy.linkrate;
3092 	sas_phy->maximum_linkrate_hw = phy->maximum_linkrate;
3093 	sas_phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
3094 	sas_phy->maximum_linkrate = phy->maximum_linkrate;
3095 	sas_phy->minimum_linkrate = phy->minimum_linkrate;
3096 }
3097 
3098 /**
3099  * pm8001_get_attached_sas_addr - extract/generate attached SAS address
3100  * @phy: pointer to asd_phy
3101  * @sas_addr: pointer to buffer where the SAS address is to be written
3102  *
3103  * This function extracts the SAS address from an IDENTIFY frame
3104  * received.  If OOB is SATA, then a SAS address is generated from the
3105  * HA tables.
3106  *
3107  * LOCKING: the frame_rcvd_lock needs to be held since this parses the frame
3108  * buffer.
3109  */
3110 void pm8001_get_attached_sas_addr(struct pm8001_phy *phy,
3111 	u8 *sas_addr)
3112 {
3113 	if (phy->sas_phy.frame_rcvd[0] == 0x34
3114 		&& phy->sas_phy.oob_mode == SATA_OOB_MODE) {
3115 		struct pm8001_hba_info *pm8001_ha = phy->sas_phy.ha->lldd_ha;
3116 		/* FIS device-to-host */
3117 		u64 addr = be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr);
3118 		addr += phy->sas_phy.id;
3119 		*(__be64 *)sas_addr = cpu_to_be64(addr);
3120 	} else {
3121 		struct sas_identify_frame *idframe =
3122 			(void *) phy->sas_phy.frame_rcvd;
3123 		memcpy(sas_addr, idframe->sas_addr, SAS_ADDR_SIZE);
3124 	}
3125 }
3126 
3127 /**
3128  * pm8001_hw_event_ack_req- For PM8001,some events need to acknowage to FW.
3129  * @pm8001_ha: our hba card information
3130  * @Qnum: the outbound queue message number.
3131  * @SEA: source of event to ack
3132  * @port_id: port id.
3133  * @phyId: phy id.
3134  * @param0: parameter 0.
3135  * @param1: parameter 1.
3136  */
3137 static void pm8001_hw_event_ack_req(struct pm8001_hba_info *pm8001_ha,
3138 	u32 Qnum, u32 SEA, u32 port_id, u32 phyId, u32 param0, u32 param1)
3139 {
3140 	struct hw_event_ack_req	 payload;
3141 	u32 opc = OPC_INB_SAS_HW_EVENT_ACK;
3142 
3143 	memset((u8 *)&payload, 0, sizeof(payload));
3144 	payload.tag = cpu_to_le32(1);
3145 	payload.sea_phyid_portid = cpu_to_le32(((SEA & 0xFFFF) << 8) |
3146 		((phyId & 0x0F) << 4) | (port_id & 0x0F));
3147 	payload.param0 = cpu_to_le32(param0);
3148 	payload.param1 = cpu_to_le32(param1);
3149 
3150 	pm8001_mpi_build_cmd(pm8001_ha, Qnum, opc, &payload, sizeof(payload), 0);
3151 }
3152 
3153 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
3154 	u32 phyId, u32 phy_op);
3155 
3156 /**
3157  * hw_event_sas_phy_up -FW tells me a SAS phy up event.
3158  * @pm8001_ha: our hba card information
3159  * @piomb: IO message buffer
3160  */
3161 static void
3162 hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3163 {
3164 	struct hw_event_resp *pPayload =
3165 		(struct hw_event_resp *)(piomb + 4);
3166 	u32 lr_evt_status_phyid_portid =
3167 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3168 	u8 link_rate =
3169 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3170 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3171 	u8 phy_id =
3172 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3173 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3174 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3175 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3176 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3177 	unsigned long flags;
3178 	u8 deviceType = pPayload->sas_identify.dev_type;
3179 	phy->port = port;
3180 	port->port_id = port_id;
3181 	port->port_state =  portstate;
3182 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3183 	pm8001_dbg(pm8001_ha, MSG,
3184 		   "HW_EVENT_SAS_PHY_UP port id = %d, phy id = %d\n",
3185 		   port_id, phy_id);
3186 
3187 	switch (deviceType) {
3188 	case SAS_PHY_UNUSED:
3189 		pm8001_dbg(pm8001_ha, MSG, "device type no device.\n");
3190 		break;
3191 	case SAS_END_DEVICE:
3192 		pm8001_dbg(pm8001_ha, MSG, "end device.\n");
3193 		pm8001_chip_phy_ctl_req(pm8001_ha, phy_id,
3194 			PHY_NOTIFY_ENABLE_SPINUP);
3195 		port->port_attached = 1;
3196 		pm8001_get_lrate_mode(phy, link_rate);
3197 		break;
3198 	case SAS_EDGE_EXPANDER_DEVICE:
3199 		pm8001_dbg(pm8001_ha, MSG, "expander device.\n");
3200 		port->port_attached = 1;
3201 		pm8001_get_lrate_mode(phy, link_rate);
3202 		break;
3203 	case SAS_FANOUT_EXPANDER_DEVICE:
3204 		pm8001_dbg(pm8001_ha, MSG, "fanout expander device.\n");
3205 		port->port_attached = 1;
3206 		pm8001_get_lrate_mode(phy, link_rate);
3207 		break;
3208 	default:
3209 		pm8001_dbg(pm8001_ha, DEVIO, "unknown device type(%x)\n",
3210 			   deviceType);
3211 		break;
3212 	}
3213 	phy->phy_type |= PORT_TYPE_SAS;
3214 	phy->identify.device_type = deviceType;
3215 	phy->phy_attached = 1;
3216 	if (phy->identify.device_type == SAS_END_DEVICE)
3217 		phy->identify.target_port_protocols = SAS_PROTOCOL_SSP;
3218 	else if (phy->identify.device_type != SAS_PHY_UNUSED)
3219 		phy->identify.target_port_protocols = SAS_PROTOCOL_SMP;
3220 	phy->sas_phy.oob_mode = SAS_OOB_MODE;
3221 	sas_notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE, GFP_ATOMIC);
3222 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3223 	memcpy(phy->frame_rcvd, &pPayload->sas_identify,
3224 		sizeof(struct sas_identify_frame)-4);
3225 	phy->frame_rcvd_size = sizeof(struct sas_identify_frame) - 4;
3226 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3227 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3228 	if (pm8001_ha->flags == PM8001F_RUN_TIME)
3229 		mdelay(200);/*delay a moment to wait disk to spinup*/
3230 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3231 }
3232 
3233 /**
3234  * hw_event_sata_phy_up -FW tells me a SATA phy up event.
3235  * @pm8001_ha: our hba card information
3236  * @piomb: IO message buffer
3237  */
3238 static void
3239 hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3240 {
3241 	struct hw_event_resp *pPayload =
3242 		(struct hw_event_resp *)(piomb + 4);
3243 	u32 lr_evt_status_phyid_portid =
3244 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3245 	u8 link_rate =
3246 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3247 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3248 	u8 phy_id =
3249 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3250 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3251 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3252 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3253 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3254 	unsigned long flags;
3255 	pm8001_dbg(pm8001_ha, DEVIO, "HW_EVENT_SATA_PHY_UP port id = %d, phy id = %d\n",
3256 		   port_id, phy_id);
3257 	phy->port = port;
3258 	port->port_id = port_id;
3259 	port->port_state =  portstate;
3260 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3261 	port->port_attached = 1;
3262 	pm8001_get_lrate_mode(phy, link_rate);
3263 	phy->phy_type |= PORT_TYPE_SATA;
3264 	phy->phy_attached = 1;
3265 	phy->sas_phy.oob_mode = SATA_OOB_MODE;
3266 	sas_notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE, GFP_ATOMIC);
3267 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3268 	memcpy(phy->frame_rcvd, ((u8 *)&pPayload->sata_fis - 4),
3269 		sizeof(struct dev_to_host_fis));
3270 	phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
3271 	phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
3272 	phy->identify.device_type = SAS_SATA_DEV;
3273 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3274 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3275 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3276 }
3277 
3278 /**
3279  * hw_event_phy_down -we should notify the libsas the phy is down.
3280  * @pm8001_ha: our hba card information
3281  * @piomb: IO message buffer
3282  */
3283 static void
3284 hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb)
3285 {
3286 	struct hw_event_resp *pPayload =
3287 		(struct hw_event_resp *)(piomb + 4);
3288 	u32 lr_evt_status_phyid_portid =
3289 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3290 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3291 	u8 phy_id =
3292 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3293 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3294 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3295 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3296 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3297 	port->port_state =  portstate;
3298 	phy->phy_type = 0;
3299 	phy->identify.device_type = 0;
3300 	phy->phy_attached = 0;
3301 	memset(&phy->dev_sas_addr, 0, SAS_ADDR_SIZE);
3302 	switch (portstate) {
3303 	case PORT_VALID:
3304 		break;
3305 	case PORT_INVALID:
3306 		pm8001_dbg(pm8001_ha, MSG, " PortInvalid portID %d\n",
3307 			   port_id);
3308 		pm8001_dbg(pm8001_ha, MSG,
3309 			   " Last phy Down and port invalid\n");
3310 		port->port_attached = 0;
3311 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3312 			port_id, phy_id, 0, 0);
3313 		break;
3314 	case PORT_IN_RESET:
3315 		pm8001_dbg(pm8001_ha, MSG, " Port In Reset portID %d\n",
3316 			   port_id);
3317 		break;
3318 	case PORT_NOT_ESTABLISHED:
3319 		pm8001_dbg(pm8001_ha, MSG,
3320 			   " phy Down and PORT_NOT_ESTABLISHED\n");
3321 		port->port_attached = 0;
3322 		break;
3323 	case PORT_LOSTCOMM:
3324 		pm8001_dbg(pm8001_ha, MSG, " phy Down and PORT_LOSTCOMM\n");
3325 		pm8001_dbg(pm8001_ha, MSG,
3326 			   " Last phy Down and port invalid\n");
3327 		port->port_attached = 0;
3328 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3329 			port_id, phy_id, 0, 0);
3330 		break;
3331 	default:
3332 		port->port_attached = 0;
3333 		pm8001_dbg(pm8001_ha, DEVIO, " phy Down and(default) = %x\n",
3334 			   portstate);
3335 		break;
3336 
3337 	}
3338 }
3339 
3340 /**
3341  * pm8001_mpi_reg_resp -process register device ID response.
3342  * @pm8001_ha: our hba card information
3343  * @piomb: IO message buffer
3344  *
3345  * when sas layer find a device it will notify LLDD, then the driver register
3346  * the domain device to FW, this event is the return device ID which the FW
3347  * has assigned, from now, inter-communication with FW is no longer using the
3348  * SAS address, use device ID which FW assigned.
3349  */
3350 int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3351 {
3352 	u32 status;
3353 	u32 device_id;
3354 	u32 htag;
3355 	struct pm8001_ccb_info *ccb;
3356 	struct pm8001_device *pm8001_dev;
3357 	struct dev_reg_resp *registerRespPayload =
3358 		(struct dev_reg_resp *)(piomb + 4);
3359 
3360 	htag = le32_to_cpu(registerRespPayload->tag);
3361 	ccb = &pm8001_ha->ccb_info[htag];
3362 	pm8001_dev = ccb->device;
3363 	status = le32_to_cpu(registerRespPayload->status);
3364 	device_id = le32_to_cpu(registerRespPayload->device_id);
3365 	pm8001_dbg(pm8001_ha, INIT,
3366 		   "register device status %d phy_id 0x%x device_id %d\n",
3367 		   status, pm8001_dev->attached_phy, device_id);
3368 	switch (status) {
3369 	case DEVREG_SUCCESS:
3370 		pm8001_dbg(pm8001_ha, MSG, "DEVREG_SUCCESS\n");
3371 		pm8001_dev->device_id = device_id;
3372 		break;
3373 	case DEVREG_FAILURE_OUT_OF_RESOURCE:
3374 		pm8001_dbg(pm8001_ha, MSG, "DEVREG_FAILURE_OUT_OF_RESOURCE\n");
3375 		break;
3376 	case DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED:
3377 		pm8001_dbg(pm8001_ha, MSG,
3378 			   "DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED\n");
3379 		break;
3380 	case DEVREG_FAILURE_INVALID_PHY_ID:
3381 		pm8001_dbg(pm8001_ha, MSG, "DEVREG_FAILURE_INVALID_PHY_ID\n");
3382 		break;
3383 	case DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED:
3384 		pm8001_dbg(pm8001_ha, MSG,
3385 			   "DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED\n");
3386 		break;
3387 	case DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE:
3388 		pm8001_dbg(pm8001_ha, MSG,
3389 			   "DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE\n");
3390 		break;
3391 	case DEVREG_FAILURE_PORT_NOT_VALID_STATE:
3392 		pm8001_dbg(pm8001_ha, MSG,
3393 			   "DEVREG_FAILURE_PORT_NOT_VALID_STATE\n");
3394 		break;
3395 	case DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID:
3396 		pm8001_dbg(pm8001_ha, MSG,
3397 			   "DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID\n");
3398 		break;
3399 	default:
3400 		pm8001_dbg(pm8001_ha, MSG,
3401 			   "DEVREG_FAILURE_DEVICE_TYPE_NOT_SUPPORTED\n");
3402 		break;
3403 	}
3404 	complete(pm8001_dev->dcompletion);
3405 	pm8001_ccb_free(pm8001_ha, ccb);
3406 	return 0;
3407 }
3408 
3409 int pm8001_mpi_dereg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3410 {
3411 	u32 status;
3412 	u32 device_id;
3413 	struct dev_reg_resp *registerRespPayload =
3414 		(struct dev_reg_resp *)(piomb + 4);
3415 
3416 	status = le32_to_cpu(registerRespPayload->status);
3417 	device_id = le32_to_cpu(registerRespPayload->device_id);
3418 	if (status != 0)
3419 		pm8001_dbg(pm8001_ha, MSG,
3420 			   " deregister device failed ,status = %x, device_id = %x\n",
3421 			   status, device_id);
3422 	return 0;
3423 }
3424 
3425 /**
3426  * pm8001_mpi_fw_flash_update_resp - Response from FW for flash update command.
3427  * @pm8001_ha: our hba card information
3428  * @piomb: IO message buffer
3429  */
3430 int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
3431 		void *piomb)
3432 {
3433 	u32 status;
3434 	struct fw_flash_Update_resp *ppayload =
3435 		(struct fw_flash_Update_resp *)(piomb + 4);
3436 	u32 tag = le32_to_cpu(ppayload->tag);
3437 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3438 
3439 	status = le32_to_cpu(ppayload->status);
3440 	switch (status) {
3441 	case FLASH_UPDATE_COMPLETE_PENDING_REBOOT:
3442 		pm8001_dbg(pm8001_ha, MSG,
3443 			   ": FLASH_UPDATE_COMPLETE_PENDING_REBOOT\n");
3444 		break;
3445 	case FLASH_UPDATE_IN_PROGRESS:
3446 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_IN_PROGRESS\n");
3447 		break;
3448 	case FLASH_UPDATE_HDR_ERR:
3449 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_HDR_ERR\n");
3450 		break;
3451 	case FLASH_UPDATE_OFFSET_ERR:
3452 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_OFFSET_ERR\n");
3453 		break;
3454 	case FLASH_UPDATE_CRC_ERR:
3455 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_CRC_ERR\n");
3456 		break;
3457 	case FLASH_UPDATE_LENGTH_ERR:
3458 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_LENGTH_ERR\n");
3459 		break;
3460 	case FLASH_UPDATE_HW_ERR:
3461 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_HW_ERR\n");
3462 		break;
3463 	case FLASH_UPDATE_DNLD_NOT_SUPPORTED:
3464 		pm8001_dbg(pm8001_ha, MSG,
3465 			   ": FLASH_UPDATE_DNLD_NOT_SUPPORTED\n");
3466 		break;
3467 	case FLASH_UPDATE_DISABLED:
3468 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_DISABLED\n");
3469 		break;
3470 	default:
3471 		pm8001_dbg(pm8001_ha, DEVIO, "No matched status = %d\n",
3472 			   status);
3473 		break;
3474 	}
3475 	kfree(ccb->fw_control_context);
3476 	pm8001_ccb_free(pm8001_ha, ccb);
3477 	complete(pm8001_ha->nvmd_completion);
3478 	return 0;
3479 }
3480 
3481 int pm8001_mpi_general_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
3482 {
3483 	u32 status;
3484 	int i;
3485 	struct general_event_resp *pPayload =
3486 		(struct general_event_resp *)(piomb + 4);
3487 	status = le32_to_cpu(pPayload->status);
3488 	pm8001_dbg(pm8001_ha, MSG, " status = 0x%x\n", status);
3489 	for (i = 0; i < GENERAL_EVENT_PAYLOAD; i++)
3490 		pm8001_dbg(pm8001_ha, MSG, "inb_IOMB_payload[0x%x] 0x%x,\n",
3491 			   i,
3492 			   pPayload->inb_IOMB_payload[i]);
3493 	return 0;
3494 }
3495 
3496 int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3497 {
3498 	struct sas_task *t;
3499 	struct pm8001_ccb_info *ccb;
3500 	unsigned long flags;
3501 	u32 status ;
3502 	u32 tag, scp;
3503 	struct task_status_struct *ts;
3504 	struct pm8001_device *pm8001_dev;
3505 
3506 	struct task_abort_resp *pPayload =
3507 		(struct task_abort_resp *)(piomb + 4);
3508 
3509 	status = le32_to_cpu(pPayload->status);
3510 	tag = le32_to_cpu(pPayload->tag);
3511 
3512 	scp = le32_to_cpu(pPayload->scp);
3513 	ccb = &pm8001_ha->ccb_info[tag];
3514 	t = ccb->task;
3515 	pm8001_dev = ccb->device; /* retrieve device */
3516 
3517 	if (!t)	{
3518 		pm8001_dbg(pm8001_ha, FAIL, " TASK NULL. RETURNING !!!\n");
3519 		return -1;
3520 	}
3521 
3522 	if (t->task_proto == SAS_PROTOCOL_INTERNAL_ABORT)
3523 		atomic_dec(&pm8001_dev->running_req);
3524 
3525 	ts = &t->task_status;
3526 	if (status != 0)
3527 		pm8001_dbg(pm8001_ha, FAIL, "task abort failed status 0x%x ,tag = 0x%x, scp= 0x%x\n",
3528 			   status, tag, scp);
3529 	switch (status) {
3530 	case IO_SUCCESS:
3531 		pm8001_dbg(pm8001_ha, EH, "IO_SUCCESS\n");
3532 		ts->resp = SAS_TASK_COMPLETE;
3533 		ts->stat = SAS_SAM_STAT_GOOD;
3534 		break;
3535 	case IO_NOT_VALID:
3536 		pm8001_dbg(pm8001_ha, EH, "IO_NOT_VALID\n");
3537 		ts->resp = TMF_RESP_FUNC_FAILED;
3538 		break;
3539 	}
3540 	spin_lock_irqsave(&t->task_state_lock, flags);
3541 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
3542 	t->task_state_flags |= SAS_TASK_STATE_DONE;
3543 	spin_unlock_irqrestore(&t->task_state_lock, flags);
3544 	pm8001_ccb_task_free(pm8001_ha, ccb);
3545 	mb();
3546 
3547 	t->task_done(t);
3548 
3549 	return 0;
3550 }
3551 
3552 /**
3553  * mpi_hw_event -The hw event has come.
3554  * @pm8001_ha: our hba card information
3555  * @piomb: IO message buffer
3556  */
3557 static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
3558 {
3559 	unsigned long flags;
3560 	struct hw_event_resp *pPayload =
3561 		(struct hw_event_resp *)(piomb + 4);
3562 	u32 lr_evt_status_phyid_portid =
3563 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3564 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3565 	u8 phy_id =
3566 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3567 	u16 eventType =
3568 		(u16)((lr_evt_status_phyid_portid & 0x00FFFF00) >> 8);
3569 	u8 status =
3570 		(u8)((lr_evt_status_phyid_portid & 0x0F000000) >> 24);
3571 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3572 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3573 	struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
3574 	pm8001_dbg(pm8001_ha, DEVIO,
3575 		   "SPC HW event for portid:%d, phyid:%d, event:%x, status:%x\n",
3576 		   port_id, phy_id, eventType, status);
3577 	switch (eventType) {
3578 	case HW_EVENT_PHY_START_STATUS:
3579 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_START_STATUS status = %x\n",
3580 			   status);
3581 		if (status == 0)
3582 			phy->phy_state = 1;
3583 
3584 		if (pm8001_ha->flags == PM8001F_RUN_TIME &&
3585 				phy->enable_completion != NULL) {
3586 			complete(phy->enable_completion);
3587 			phy->enable_completion = NULL;
3588 		}
3589 		break;
3590 	case HW_EVENT_SAS_PHY_UP:
3591 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_START_STATUS\n");
3592 		hw_event_sas_phy_up(pm8001_ha, piomb);
3593 		break;
3594 	case HW_EVENT_SATA_PHY_UP:
3595 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_SATA_PHY_UP\n");
3596 		hw_event_sata_phy_up(pm8001_ha, piomb);
3597 		break;
3598 	case HW_EVENT_PHY_STOP_STATUS:
3599 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_STOP_STATUS status = %x\n",
3600 			   status);
3601 		if (status == 0)
3602 			phy->phy_state = 0;
3603 		break;
3604 	case HW_EVENT_SATA_SPINUP_HOLD:
3605 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_SATA_SPINUP_HOLD\n");
3606 		sas_notify_phy_event(&phy->sas_phy, PHYE_SPINUP_HOLD,
3607 			GFP_ATOMIC);
3608 		break;
3609 	case HW_EVENT_PHY_DOWN:
3610 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_DOWN\n");
3611 		sas_notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL,
3612 			GFP_ATOMIC);
3613 		phy->phy_attached = 0;
3614 		phy->phy_state = 0;
3615 		hw_event_phy_down(pm8001_ha, piomb);
3616 		break;
3617 	case HW_EVENT_PORT_INVALID:
3618 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_INVALID\n");
3619 		sas_phy_disconnected(sas_phy);
3620 		phy->phy_attached = 0;
3621 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3622 			GFP_ATOMIC);
3623 		break;
3624 	/* the broadcast change primitive received, tell the LIBSAS this event
3625 	to revalidate the sas domain*/
3626 	case HW_EVENT_BROADCAST_CHANGE:
3627 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_CHANGE\n");
3628 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_BROADCAST_CHANGE,
3629 			port_id, phy_id, 1, 0);
3630 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3631 		sas_phy->sas_prim = HW_EVENT_BROADCAST_CHANGE;
3632 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3633 		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
3634 			GFP_ATOMIC);
3635 		break;
3636 	case HW_EVENT_PHY_ERROR:
3637 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_ERROR\n");
3638 		sas_phy_disconnected(&phy->sas_phy);
3639 		phy->phy_attached = 0;
3640 		sas_notify_phy_event(&phy->sas_phy, PHYE_OOB_ERROR, GFP_ATOMIC);
3641 		break;
3642 	case HW_EVENT_BROADCAST_EXP:
3643 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_EXP\n");
3644 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3645 		sas_phy->sas_prim = HW_EVENT_BROADCAST_EXP;
3646 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3647 		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
3648 			GFP_ATOMIC);
3649 		break;
3650 	case HW_EVENT_LINK_ERR_INVALID_DWORD:
3651 		pm8001_dbg(pm8001_ha, MSG,
3652 			   "HW_EVENT_LINK_ERR_INVALID_DWORD\n");
3653 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3654 			HW_EVENT_LINK_ERR_INVALID_DWORD, port_id, phy_id, 0, 0);
3655 		sas_phy_disconnected(sas_phy);
3656 		phy->phy_attached = 0;
3657 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3658 			GFP_ATOMIC);
3659 		break;
3660 	case HW_EVENT_LINK_ERR_DISPARITY_ERROR:
3661 		pm8001_dbg(pm8001_ha, MSG,
3662 			   "HW_EVENT_LINK_ERR_DISPARITY_ERROR\n");
3663 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3664 			HW_EVENT_LINK_ERR_DISPARITY_ERROR,
3665 			port_id, phy_id, 0, 0);
3666 		sas_phy_disconnected(sas_phy);
3667 		phy->phy_attached = 0;
3668 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3669 			GFP_ATOMIC);
3670 		break;
3671 	case HW_EVENT_LINK_ERR_CODE_VIOLATION:
3672 		pm8001_dbg(pm8001_ha, MSG,
3673 			   "HW_EVENT_LINK_ERR_CODE_VIOLATION\n");
3674 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3675 			HW_EVENT_LINK_ERR_CODE_VIOLATION,
3676 			port_id, phy_id, 0, 0);
3677 		sas_phy_disconnected(sas_phy);
3678 		phy->phy_attached = 0;
3679 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3680 			GFP_ATOMIC);
3681 		break;
3682 	case HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH:
3683 		pm8001_dbg(pm8001_ha, MSG,
3684 			   "HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH\n");
3685 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3686 			HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH,
3687 			port_id, phy_id, 0, 0);
3688 		sas_phy_disconnected(sas_phy);
3689 		phy->phy_attached = 0;
3690 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3691 			GFP_ATOMIC);
3692 		break;
3693 	case HW_EVENT_MALFUNCTION:
3694 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_MALFUNCTION\n");
3695 		break;
3696 	case HW_EVENT_BROADCAST_SES:
3697 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_SES\n");
3698 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3699 		sas_phy->sas_prim = HW_EVENT_BROADCAST_SES;
3700 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3701 		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
3702 			GFP_ATOMIC);
3703 		break;
3704 	case HW_EVENT_INBOUND_CRC_ERROR:
3705 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_INBOUND_CRC_ERROR\n");
3706 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3707 			HW_EVENT_INBOUND_CRC_ERROR,
3708 			port_id, phy_id, 0, 0);
3709 		break;
3710 	case HW_EVENT_HARD_RESET_RECEIVED:
3711 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_HARD_RESET_RECEIVED\n");
3712 		sas_notify_port_event(sas_phy, PORTE_HARD_RESET, GFP_ATOMIC);
3713 		break;
3714 	case HW_EVENT_ID_FRAME_TIMEOUT:
3715 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_ID_FRAME_TIMEOUT\n");
3716 		sas_phy_disconnected(sas_phy);
3717 		phy->phy_attached = 0;
3718 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3719 			GFP_ATOMIC);
3720 		break;
3721 	case HW_EVENT_LINK_ERR_PHY_RESET_FAILED:
3722 		pm8001_dbg(pm8001_ha, MSG,
3723 			   "HW_EVENT_LINK_ERR_PHY_RESET_FAILED\n");
3724 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3725 			HW_EVENT_LINK_ERR_PHY_RESET_FAILED,
3726 			port_id, phy_id, 0, 0);
3727 		sas_phy_disconnected(sas_phy);
3728 		phy->phy_attached = 0;
3729 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3730 			GFP_ATOMIC);
3731 		break;
3732 	case HW_EVENT_PORT_RESET_TIMER_TMO:
3733 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RESET_TIMER_TMO\n");
3734 		sas_phy_disconnected(sas_phy);
3735 		phy->phy_attached = 0;
3736 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3737 			GFP_ATOMIC);
3738 		break;
3739 	case HW_EVENT_PORT_RECOVERY_TIMER_TMO:
3740 		pm8001_dbg(pm8001_ha, MSG,
3741 			   "HW_EVENT_PORT_RECOVERY_TIMER_TMO\n");
3742 		sas_phy_disconnected(sas_phy);
3743 		phy->phy_attached = 0;
3744 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3745 			GFP_ATOMIC);
3746 		break;
3747 	case HW_EVENT_PORT_RECOVER:
3748 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RECOVER\n");
3749 		break;
3750 	case HW_EVENT_PORT_RESET_COMPLETE:
3751 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RESET_COMPLETE\n");
3752 		break;
3753 	case EVENT_BROADCAST_ASYNCH_EVENT:
3754 		pm8001_dbg(pm8001_ha, MSG, "EVENT_BROADCAST_ASYNCH_EVENT\n");
3755 		break;
3756 	default:
3757 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown event type = %x\n",
3758 			   eventType);
3759 		break;
3760 	}
3761 	return 0;
3762 }
3763 
3764 /**
3765  * process_one_iomb - process one outbound Queue memory block
3766  * @pm8001_ha: our hba card information
3767  * @piomb: IO message buffer
3768  */
3769 static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb)
3770 {
3771 	__le32 pHeader = *(__le32 *)piomb;
3772 	u8 opc = (u8)((le32_to_cpu(pHeader)) & 0xFFF);
3773 
3774 	pm8001_dbg(pm8001_ha, MSG, "process_one_iomb:\n");
3775 
3776 	switch (opc) {
3777 	case OPC_OUB_ECHO:
3778 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_ECHO\n");
3779 		break;
3780 	case OPC_OUB_HW_EVENT:
3781 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_HW_EVENT\n");
3782 		mpi_hw_event(pm8001_ha, piomb);
3783 		break;
3784 	case OPC_OUB_SSP_COMP:
3785 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_COMP\n");
3786 		mpi_ssp_completion(pm8001_ha, piomb);
3787 		break;
3788 	case OPC_OUB_SMP_COMP:
3789 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SMP_COMP\n");
3790 		mpi_smp_completion(pm8001_ha, piomb);
3791 		break;
3792 	case OPC_OUB_LOCAL_PHY_CNTRL:
3793 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_LOCAL_PHY_CNTRL\n");
3794 		pm8001_mpi_local_phy_ctl(pm8001_ha, piomb);
3795 		break;
3796 	case OPC_OUB_DEV_REGIST:
3797 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_REGIST\n");
3798 		pm8001_mpi_reg_resp(pm8001_ha, piomb);
3799 		break;
3800 	case OPC_OUB_DEREG_DEV:
3801 		pm8001_dbg(pm8001_ha, MSG, "unregister the device\n");
3802 		pm8001_mpi_dereg_resp(pm8001_ha, piomb);
3803 		break;
3804 	case OPC_OUB_GET_DEV_HANDLE:
3805 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_DEV_HANDLE\n");
3806 		break;
3807 	case OPC_OUB_SATA_COMP:
3808 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_COMP\n");
3809 		mpi_sata_completion(pm8001_ha, piomb);
3810 		break;
3811 	case OPC_OUB_SATA_EVENT:
3812 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_EVENT\n");
3813 		mpi_sata_event(pm8001_ha, piomb);
3814 		break;
3815 	case OPC_OUB_SSP_EVENT:
3816 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_EVENT\n");
3817 		mpi_ssp_event(pm8001_ha, piomb);
3818 		break;
3819 	case OPC_OUB_DEV_HANDLE_ARRIV:
3820 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_HANDLE_ARRIV\n");
3821 		/*This is for target*/
3822 		break;
3823 	case OPC_OUB_SSP_RECV_EVENT:
3824 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_RECV_EVENT\n");
3825 		/*This is for target*/
3826 		break;
3827 	case OPC_OUB_DEV_INFO:
3828 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_INFO\n");
3829 		break;
3830 	case OPC_OUB_FW_FLASH_UPDATE:
3831 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_FW_FLASH_UPDATE\n");
3832 		pm8001_mpi_fw_flash_update_resp(pm8001_ha, piomb);
3833 		break;
3834 	case OPC_OUB_GPIO_RESPONSE:
3835 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GPIO_RESPONSE\n");
3836 		break;
3837 	case OPC_OUB_GPIO_EVENT:
3838 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GPIO_EVENT\n");
3839 		break;
3840 	case OPC_OUB_GENERAL_EVENT:
3841 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GENERAL_EVENT\n");
3842 		pm8001_mpi_general_event(pm8001_ha, piomb);
3843 		break;
3844 	case OPC_OUB_SSP_ABORT_RSP:
3845 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_ABORT_RSP\n");
3846 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
3847 		break;
3848 	case OPC_OUB_SATA_ABORT_RSP:
3849 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_ABORT_RSP\n");
3850 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
3851 		break;
3852 	case OPC_OUB_SAS_DIAG_MODE_START_END:
3853 		pm8001_dbg(pm8001_ha, MSG,
3854 			   "OPC_OUB_SAS_DIAG_MODE_START_END\n");
3855 		break;
3856 	case OPC_OUB_SAS_DIAG_EXECUTE:
3857 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_DIAG_EXECUTE\n");
3858 		break;
3859 	case OPC_OUB_GET_TIME_STAMP:
3860 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_TIME_STAMP\n");
3861 		break;
3862 	case OPC_OUB_SAS_HW_EVENT_ACK:
3863 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_HW_EVENT_ACK\n");
3864 		break;
3865 	case OPC_OUB_PORT_CONTROL:
3866 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_PORT_CONTROL\n");
3867 		break;
3868 	case OPC_OUB_SMP_ABORT_RSP:
3869 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SMP_ABORT_RSP\n");
3870 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
3871 		break;
3872 	case OPC_OUB_GET_NVMD_DATA:
3873 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_NVMD_DATA\n");
3874 		pm8001_mpi_get_nvmd_resp(pm8001_ha, piomb);
3875 		break;
3876 	case OPC_OUB_SET_NVMD_DATA:
3877 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_NVMD_DATA\n");
3878 		pm8001_mpi_set_nvmd_resp(pm8001_ha, piomb);
3879 		break;
3880 	case OPC_OUB_DEVICE_HANDLE_REMOVAL:
3881 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEVICE_HANDLE_REMOVAL\n");
3882 		break;
3883 	case OPC_OUB_SET_DEVICE_STATE:
3884 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_DEVICE_STATE\n");
3885 		pm8001_mpi_set_dev_state_resp(pm8001_ha, piomb);
3886 		break;
3887 	case OPC_OUB_GET_DEVICE_STATE:
3888 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_DEVICE_STATE\n");
3889 		break;
3890 	case OPC_OUB_SET_DEV_INFO:
3891 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_DEV_INFO\n");
3892 		break;
3893 	case OPC_OUB_SAS_RE_INITIALIZE:
3894 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_RE_INITIALIZE\n");
3895 		break;
3896 	default:
3897 		pm8001_dbg(pm8001_ha, DEVIO,
3898 			   "Unknown outbound Queue IOMB OPC = %x\n",
3899 			   opc);
3900 		break;
3901 	}
3902 }
3903 
3904 static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec)
3905 {
3906 	struct outbound_queue_table *circularQ;
3907 	void *pMsg1 = NULL;
3908 	u8 bc;
3909 	u32 ret = MPI_IO_STATUS_FAIL;
3910 	unsigned long flags;
3911 
3912 	spin_lock_irqsave(&pm8001_ha->lock, flags);
3913 	circularQ = &pm8001_ha->outbnd_q_tbl[vec];
3914 	do {
3915 		ret = pm8001_mpi_msg_consume(pm8001_ha, circularQ, &pMsg1, &bc);
3916 		if (MPI_IO_STATUS_SUCCESS == ret) {
3917 			/* process the outbound message */
3918 			process_one_iomb(pm8001_ha, (void *)(pMsg1 - 4));
3919 			/* free the message from the outbound circular buffer */
3920 			pm8001_mpi_msg_free_set(pm8001_ha, pMsg1,
3921 							circularQ, bc);
3922 		}
3923 		if (MPI_IO_STATUS_BUSY == ret) {
3924 			/* Update the producer index from SPC */
3925 			circularQ->producer_index =
3926 				cpu_to_le32(pm8001_read_32(circularQ->pi_virt));
3927 			if (le32_to_cpu(circularQ->producer_index) ==
3928 				circularQ->consumer_idx)
3929 				/* OQ is empty */
3930 				break;
3931 		}
3932 	} while (1);
3933 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
3934 	return ret;
3935 }
3936 
3937 /* DMA_... to our direction translation. */
3938 static const u8 data_dir_flags[] = {
3939 	[DMA_BIDIRECTIONAL]	= DATA_DIR_BYRECIPIENT,	/* UNSPECIFIED */
3940 	[DMA_TO_DEVICE]		= DATA_DIR_OUT,		/* OUTBOUND */
3941 	[DMA_FROM_DEVICE]	= DATA_DIR_IN,		/* INBOUND */
3942 	[DMA_NONE]		= DATA_DIR_NONE,	/* NO TRANSFER */
3943 };
3944 void
3945 pm8001_chip_make_sg(struct scatterlist *scatter, int nr, void *prd)
3946 {
3947 	int i;
3948 	struct scatterlist *sg;
3949 	struct pm8001_prd *buf_prd = prd;
3950 
3951 	for_each_sg(scatter, sg, nr, i) {
3952 		buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
3953 		buf_prd->im_len.len = cpu_to_le32(sg_dma_len(sg));
3954 		buf_prd->im_len.e = 0;
3955 		buf_prd++;
3956 	}
3957 }
3958 
3959 static void build_smp_cmd(u32 deviceID, __le32 hTag, struct smp_req *psmp_cmd)
3960 {
3961 	psmp_cmd->tag = hTag;
3962 	psmp_cmd->device_id = cpu_to_le32(deviceID);
3963 	psmp_cmd->len_ip_ir = cpu_to_le32(1|(1 << 1));
3964 }
3965 
3966 /**
3967  * pm8001_chip_smp_req - send a SMP task to FW
3968  * @pm8001_ha: our hba card information.
3969  * @ccb: the ccb information this request used.
3970  */
3971 static int pm8001_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
3972 	struct pm8001_ccb_info *ccb)
3973 {
3974 	int elem, rc;
3975 	struct sas_task *task = ccb->task;
3976 	struct domain_device *dev = task->dev;
3977 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
3978 	struct scatterlist *sg_req, *sg_resp;
3979 	u32 req_len, resp_len;
3980 	struct smp_req smp_cmd;
3981 	u32 opc;
3982 
3983 	memset(&smp_cmd, 0, sizeof(smp_cmd));
3984 	/*
3985 	 * DMA-map SMP request, response buffers
3986 	 */
3987 	sg_req = &task->smp_task.smp_req;
3988 	elem = dma_map_sg(pm8001_ha->dev, sg_req, 1, DMA_TO_DEVICE);
3989 	if (!elem)
3990 		return -ENOMEM;
3991 	req_len = sg_dma_len(sg_req);
3992 
3993 	sg_resp = &task->smp_task.smp_resp;
3994 	elem = dma_map_sg(pm8001_ha->dev, sg_resp, 1, DMA_FROM_DEVICE);
3995 	if (!elem) {
3996 		rc = -ENOMEM;
3997 		goto err_out;
3998 	}
3999 	resp_len = sg_dma_len(sg_resp);
4000 	/* must be in dwords */
4001 	if ((req_len & 0x3) || (resp_len & 0x3)) {
4002 		rc = -EINVAL;
4003 		goto err_out_2;
4004 	}
4005 
4006 	opc = OPC_INB_SMP_REQUEST;
4007 	smp_cmd.tag = cpu_to_le32(ccb->ccb_tag);
4008 	smp_cmd.long_smp_req.long_req_addr =
4009 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req));
4010 	smp_cmd.long_smp_req.long_req_size =
4011 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-4);
4012 	smp_cmd.long_smp_req.long_resp_addr =
4013 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_resp));
4014 	smp_cmd.long_smp_req.long_resp_size =
4015 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4);
4016 	build_smp_cmd(pm8001_dev->device_id, smp_cmd.tag, &smp_cmd);
4017 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc,
4018 				  &smp_cmd, sizeof(smp_cmd), 0);
4019 	if (rc)
4020 		goto err_out_2;
4021 
4022 	return 0;
4023 
4024 err_out_2:
4025 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_resp, 1,
4026 			DMA_FROM_DEVICE);
4027 err_out:
4028 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_req, 1,
4029 			DMA_TO_DEVICE);
4030 	return rc;
4031 }
4032 
4033 /**
4034  * pm8001_chip_ssp_io_req - send a SSP task to FW
4035  * @pm8001_ha: our hba card information.
4036  * @ccb: the ccb information this request used.
4037  */
4038 static int pm8001_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
4039 	struct pm8001_ccb_info *ccb)
4040 {
4041 	struct sas_task *task = ccb->task;
4042 	struct domain_device *dev = task->dev;
4043 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4044 	struct ssp_ini_io_start_req ssp_cmd;
4045 	u32 tag = ccb->ccb_tag;
4046 	u64 phys_addr;
4047 	u32 opc = OPC_INB_SSPINIIOSTART;
4048 	memset(&ssp_cmd, 0, sizeof(ssp_cmd));
4049 	memcpy(ssp_cmd.ssp_iu.lun, task->ssp_task.LUN, 8);
4050 	ssp_cmd.dir_m_tlr =
4051 		cpu_to_le32(data_dir_flags[task->data_dir] << 8 | 0x0);/*0 for
4052 	SAS 1.1 compatible TLR*/
4053 	ssp_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4054 	ssp_cmd.device_id = cpu_to_le32(pm8001_dev->device_id);
4055 	ssp_cmd.tag = cpu_to_le32(tag);
4056 	if (task->ssp_task.enable_first_burst)
4057 		ssp_cmd.ssp_iu.efb_prio_attr |= 0x80;
4058 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_prio << 3);
4059 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_attr & 7);
4060 	memcpy(ssp_cmd.ssp_iu.cdb, task->ssp_task.cmd->cmnd,
4061 	       task->ssp_task.cmd->cmd_len);
4062 
4063 	/* fill in PRD (scatter/gather) table, if any */
4064 	if (task->num_scatter > 1) {
4065 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4066 		phys_addr = ccb->ccb_dma_handle;
4067 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(phys_addr));
4068 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(phys_addr));
4069 		ssp_cmd.esgl = cpu_to_le32(1<<31);
4070 	} else if (task->num_scatter == 1) {
4071 		u64 dma_addr = sg_dma_address(task->scatter);
4072 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(dma_addr));
4073 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(dma_addr));
4074 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4075 		ssp_cmd.esgl = 0;
4076 	} else if (task->num_scatter == 0) {
4077 		ssp_cmd.addr_low = 0;
4078 		ssp_cmd.addr_high = 0;
4079 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4080 		ssp_cmd.esgl = 0;
4081 	}
4082 
4083 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &ssp_cmd,
4084 				    sizeof(ssp_cmd), 0);
4085 }
4086 
4087 static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
4088 	struct pm8001_ccb_info *ccb)
4089 {
4090 	struct sas_task *task = ccb->task;
4091 	struct domain_device *dev = task->dev;
4092 	struct pm8001_device *pm8001_ha_dev = dev->lldd_dev;
4093 	u32 tag = ccb->ccb_tag;
4094 	struct sata_start_req sata_cmd;
4095 	u32 hdr_tag, ncg_tag = 0;
4096 	u64 phys_addr;
4097 	u32 ATAP = 0x0;
4098 	u32 dir;
4099 	u32  opc = OPC_INB_SATA_HOST_OPSTART;
4100 
4101 	memset(&sata_cmd, 0, sizeof(sata_cmd));
4102 
4103 	if (task->data_dir == DMA_NONE && !task->ata_task.use_ncq) {
4104 		ATAP = 0x04;  /* no data*/
4105 		pm8001_dbg(pm8001_ha, IO, "no data\n");
4106 	} else if (likely(!task->ata_task.device_control_reg_update)) {
4107 		if (task->ata_task.use_ncq &&
4108 		    dev->sata_dev.class != ATA_DEV_ATAPI) {
4109 			ATAP = 0x07; /* FPDMA */
4110 			pm8001_dbg(pm8001_ha, IO, "FPDMA\n");
4111 		} else if (task->ata_task.dma_xfer) {
4112 			ATAP = 0x06; /* DMA */
4113 			pm8001_dbg(pm8001_ha, IO, "DMA\n");
4114 		} else {
4115 			ATAP = 0x05; /* PIO*/
4116 			pm8001_dbg(pm8001_ha, IO, "PIO\n");
4117 		}
4118 	}
4119 	if (task->ata_task.use_ncq && pm8001_get_ncq_tag(task, &hdr_tag)) {
4120 		task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
4121 		ncg_tag = hdr_tag;
4122 	}
4123 	dir = data_dir_flags[task->data_dir] << 8;
4124 	sata_cmd.tag = cpu_to_le32(tag);
4125 	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
4126 	sata_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4127 	sata_cmd.ncqtag_atap_dir_m =
4128 		cpu_to_le32(((ncg_tag & 0xff)<<16)|((ATAP & 0x3f) << 10) | dir);
4129 	sata_cmd.sata_fis = task->ata_task.fis;
4130 	if (likely(!task->ata_task.device_control_reg_update))
4131 		sata_cmd.sata_fis.flags |= 0x80;/* C=1: update ATA cmd reg */
4132 	sata_cmd.sata_fis.flags &= 0xF0;/* PM_PORT field shall be 0 */
4133 	/* fill in PRD (scatter/gather) table, if any */
4134 	if (task->num_scatter > 1) {
4135 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4136 		phys_addr = ccb->ccb_dma_handle;
4137 		sata_cmd.addr_low = lower_32_bits(phys_addr);
4138 		sata_cmd.addr_high = upper_32_bits(phys_addr);
4139 		sata_cmd.esgl = cpu_to_le32(1 << 31);
4140 	} else if (task->num_scatter == 1) {
4141 		u64 dma_addr = sg_dma_address(task->scatter);
4142 		sata_cmd.addr_low = lower_32_bits(dma_addr);
4143 		sata_cmd.addr_high = upper_32_bits(dma_addr);
4144 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4145 		sata_cmd.esgl = 0;
4146 	} else if (task->num_scatter == 0) {
4147 		sata_cmd.addr_low = 0;
4148 		sata_cmd.addr_high = 0;
4149 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4150 		sata_cmd.esgl = 0;
4151 	}
4152 
4153 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &sata_cmd,
4154 				    sizeof(sata_cmd), 0);
4155 }
4156 
4157 /**
4158  * pm8001_chip_phy_start_req - start phy via PHY_START COMMAND
4159  * @pm8001_ha: our hba card information.
4160  * @phy_id: the phy id which we wanted to start up.
4161  */
4162 static int
4163 pm8001_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id)
4164 {
4165 	struct phy_start_req payload;
4166 	u32 tag = 0x01;
4167 	u32 opcode = OPC_INB_PHYSTART;
4168 
4169 	memset(&payload, 0, sizeof(payload));
4170 	payload.tag = cpu_to_le32(tag);
4171 	/*
4172 	 ** [0:7]   PHY Identifier
4173 	 ** [8:11]  link rate 1.5G, 3G, 6G
4174 	 ** [12:13] link mode 01b SAS mode; 10b SATA mode; 11b both
4175 	 ** [14]    0b disable spin up hold; 1b enable spin up hold
4176 	 */
4177 	payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE |
4178 		LINKMODE_AUTO |	LINKRATE_15 |
4179 		LINKRATE_30 | LINKRATE_60 | phy_id);
4180 	payload.sas_identify.dev_type = SAS_END_DEVICE;
4181 	payload.sas_identify.initiator_bits = SAS_PROTOCOL_ALL;
4182 	memcpy(payload.sas_identify.sas_addr,
4183 		pm8001_ha->sas_addr, SAS_ADDR_SIZE);
4184 	payload.sas_identify.phy_id = phy_id;
4185 
4186 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opcode, &payload,
4187 				    sizeof(payload), 0);
4188 }
4189 
4190 /**
4191  * pm8001_chip_phy_stop_req - start phy via PHY_STOP COMMAND
4192  * @pm8001_ha: our hba card information.
4193  * @phy_id: the phy id which we wanted to start up.
4194  */
4195 static int pm8001_chip_phy_stop_req(struct pm8001_hba_info *pm8001_ha,
4196 				    u8 phy_id)
4197 {
4198 	struct phy_stop_req payload;
4199 	u32 tag = 0x01;
4200 	u32 opcode = OPC_INB_PHYSTOP;
4201 
4202 	memset(&payload, 0, sizeof(payload));
4203 	payload.tag = cpu_to_le32(tag);
4204 	payload.phy_id = cpu_to_le32(phy_id);
4205 
4206 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opcode, &payload,
4207 				    sizeof(payload), 0);
4208 }
4209 
4210 /*
4211  * see comments on pm8001_mpi_reg_resp.
4212  */
4213 static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
4214 	struct pm8001_device *pm8001_dev, u32 flag)
4215 {
4216 	struct reg_dev_req payload;
4217 	u32	opc;
4218 	u32 stp_sspsmp_sata = 0x4;
4219 	u32 linkrate, phy_id;
4220 	int rc;
4221 	struct pm8001_ccb_info *ccb;
4222 	u8 retryFlag = 0x1;
4223 	u16 firstBurstSize = 0;
4224 	u16 ITNT = 2000;
4225 	struct domain_device *dev = pm8001_dev->sas_device;
4226 	struct domain_device *parent_dev = dev->parent;
4227 	struct pm8001_port *port = dev->port->lldd_port;
4228 
4229 	memset(&payload, 0, sizeof(payload));
4230 	ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_dev, NULL);
4231 	if (!ccb)
4232 		return -SAS_QUEUE_FULL;
4233 
4234 	payload.tag = cpu_to_le32(ccb->ccb_tag);
4235 	if (flag == 1)
4236 		stp_sspsmp_sata = 0x02; /*direct attached sata */
4237 	else {
4238 		if (pm8001_dev->dev_type == SAS_SATA_DEV)
4239 			stp_sspsmp_sata = 0x00; /* stp*/
4240 		else if (pm8001_dev->dev_type == SAS_END_DEVICE ||
4241 			dev_is_expander(pm8001_dev->dev_type))
4242 			stp_sspsmp_sata = 0x01; /*ssp or smp*/
4243 	}
4244 	if (parent_dev && dev_is_expander(parent_dev->dev_type))
4245 		phy_id = parent_dev->ex_dev.ex_phy->phy_id;
4246 	else
4247 		phy_id = pm8001_dev->attached_phy;
4248 	opc = OPC_INB_REG_DEV;
4249 	linkrate = (pm8001_dev->sas_device->linkrate < dev->port->linkrate) ?
4250 			pm8001_dev->sas_device->linkrate : dev->port->linkrate;
4251 	payload.phyid_portid =
4252 		cpu_to_le32(((port->port_id) & 0x0F) |
4253 		((phy_id & 0x0F) << 4));
4254 	payload.dtype_dlr_retry = cpu_to_le32((retryFlag & 0x01) |
4255 		((linkrate & 0x0F) * 0x1000000) |
4256 		((stp_sspsmp_sata & 0x03) * 0x10000000));
4257 	payload.firstburstsize_ITNexustimeout =
4258 		cpu_to_le32(ITNT | (firstBurstSize * 0x10000));
4259 	memcpy(payload.sas_addr, pm8001_dev->sas_device->sas_addr,
4260 		SAS_ADDR_SIZE);
4261 
4262 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4263 				  sizeof(payload), 0);
4264 	if (rc)
4265 		pm8001_ccb_free(pm8001_ha, ccb);
4266 
4267 	return rc;
4268 }
4269 
4270 /*
4271  * see comments on pm8001_mpi_reg_resp.
4272  */
4273 int pm8001_chip_dereg_dev_req(struct pm8001_hba_info *pm8001_ha,
4274 	u32 device_id)
4275 {
4276 	struct dereg_dev_req payload;
4277 	u32 opc = OPC_INB_DEREG_DEV_HANDLE;
4278 
4279 	memset(&payload, 0, sizeof(payload));
4280 	payload.tag = cpu_to_le32(1);
4281 	payload.device_id = cpu_to_le32(device_id);
4282 	pm8001_dbg(pm8001_ha, INIT, "unregister device device_id %d\n",
4283 		   device_id);
4284 
4285 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4286 				    sizeof(payload), 0);
4287 }
4288 
4289 /**
4290  * pm8001_chip_phy_ctl_req - support the local phy operation
4291  * @pm8001_ha: our hba card information.
4292  * @phyId: the phy id which we wanted to operate
4293  * @phy_op: the phy operation to request
4294  */
4295 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
4296 	u32 phyId, u32 phy_op)
4297 {
4298 	struct local_phy_ctl_req payload;
4299 	u32 opc = OPC_INB_LOCAL_PHY_CONTROL;
4300 
4301 	memset(&payload, 0, sizeof(payload));
4302 	payload.tag = cpu_to_le32(1);
4303 	payload.phyop_phyid =
4304 		cpu_to_le32(((phy_op & 0xff) << 8) | (phyId & 0x0F));
4305 
4306 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4307 				    sizeof(payload), 0);
4308 }
4309 
4310 static u32 pm8001_chip_is_our_interrupt(struct pm8001_hba_info *pm8001_ha)
4311 {
4312 #ifdef PM8001_USE_MSIX
4313 	return 1;
4314 #else
4315 	u32 value;
4316 
4317 	value = pm8001_cr32(pm8001_ha, 0, MSGU_ODR);
4318 	if (value)
4319 		return 1;
4320 	return 0;
4321 #endif
4322 }
4323 
4324 /**
4325  * pm8001_chip_isr - PM8001 isr handler.
4326  * @pm8001_ha: our hba card information.
4327  * @vec: IRQ number
4328  */
4329 static irqreturn_t
4330 pm8001_chip_isr(struct pm8001_hba_info *pm8001_ha, u8 vec)
4331 {
4332 	pm8001_chip_interrupt_disable(pm8001_ha, vec);
4333 	pm8001_dbg(pm8001_ha, DEVIO,
4334 		   "irq vec %d, ODMR:0x%x\n",
4335 		   vec, pm8001_cr32(pm8001_ha, 0, 0x30));
4336 	process_oq(pm8001_ha, vec);
4337 	pm8001_chip_interrupt_enable(pm8001_ha, vec);
4338 	return IRQ_HANDLED;
4339 }
4340 
4341 static int send_task_abort(struct pm8001_hba_info *pm8001_ha, u32 opc,
4342 	u32 dev_id, enum sas_internal_abort type, u32 task_tag, u32 cmd_tag)
4343 {
4344 	struct task_abort_req task_abort;
4345 
4346 	memset(&task_abort, 0, sizeof(task_abort));
4347 	if (type == SAS_INTERNAL_ABORT_SINGLE) {
4348 		task_abort.abort_all = 0;
4349 		task_abort.device_id = cpu_to_le32(dev_id);
4350 		task_abort.tag_to_abort = cpu_to_le32(task_tag);
4351 	} else if (type == SAS_INTERNAL_ABORT_DEV) {
4352 		task_abort.abort_all = cpu_to_le32(1);
4353 		task_abort.device_id = cpu_to_le32(dev_id);
4354 	} else {
4355 		pm8001_dbg(pm8001_ha, EH, "unknown type (%d)\n", type);
4356 		return -EIO;
4357 	}
4358 
4359 	task_abort.tag = cpu_to_le32(cmd_tag);
4360 
4361 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &task_abort,
4362 				    sizeof(task_abort), 0);
4363 }
4364 
4365 /*
4366  * pm8001_chip_abort_task - SAS abort task when error or exception happened.
4367  */
4368 int pm8001_chip_abort_task(struct pm8001_hba_info *pm8001_ha,
4369 	struct pm8001_ccb_info *ccb)
4370 {
4371 	struct sas_task *task = ccb->task;
4372 	struct sas_internal_abort_task *abort = &task->abort_task;
4373 	struct pm8001_device *pm8001_dev = ccb->device;
4374 	int rc = TMF_RESP_FUNC_FAILED;
4375 	u32 opc, device_id;
4376 
4377 	pm8001_dbg(pm8001_ha, EH, "cmd_tag = %x, abort task tag = 0x%x\n",
4378 		   ccb->ccb_tag, abort->tag);
4379 	if (pm8001_dev->dev_type == SAS_END_DEVICE)
4380 		opc = OPC_INB_SSP_ABORT;
4381 	else if (pm8001_dev->dev_type == SAS_SATA_DEV)
4382 		opc = OPC_INB_SATA_ABORT;
4383 	else
4384 		opc = OPC_INB_SMP_ABORT;/* SMP */
4385 	device_id = pm8001_dev->device_id;
4386 	rc = send_task_abort(pm8001_ha, opc, device_id, abort->type,
4387 			     abort->tag, ccb->ccb_tag);
4388 	if (rc != TMF_RESP_FUNC_COMPLETE)
4389 		pm8001_dbg(pm8001_ha, EH, "rc= %d\n", rc);
4390 	return rc;
4391 }
4392 
4393 /**
4394  * pm8001_chip_ssp_tm_req - built the task management command.
4395  * @pm8001_ha: our hba card information.
4396  * @ccb: the ccb information.
4397  * @tmf: task management function.
4398  */
4399 int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
4400 	struct pm8001_ccb_info *ccb, struct sas_tmf_task *tmf)
4401 {
4402 	struct sas_task *task = ccb->task;
4403 	struct domain_device *dev = task->dev;
4404 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4405 	u32 opc = OPC_INB_SSPINITMSTART;
4406 	struct ssp_ini_tm_start_req sspTMCmd;
4407 
4408 	memset(&sspTMCmd, 0, sizeof(sspTMCmd));
4409 	sspTMCmd.device_id = cpu_to_le32(pm8001_dev->device_id);
4410 	sspTMCmd.relate_tag = cpu_to_le32((u32)tmf->tag_of_task_to_be_managed);
4411 	sspTMCmd.tmf = cpu_to_le32(tmf->tmf);
4412 	memcpy(sspTMCmd.lun, task->ssp_task.LUN, 8);
4413 	sspTMCmd.tag = cpu_to_le32(ccb->ccb_tag);
4414 	if (pm8001_ha->chip_id != chip_8001)
4415 		sspTMCmd.ds_ads_m = cpu_to_le32(0x08);
4416 
4417 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &sspTMCmd,
4418 				    sizeof(sspTMCmd), 0);
4419 }
4420 
4421 int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
4422 	void *payload)
4423 {
4424 	u32 opc = OPC_INB_GET_NVMD_DATA;
4425 	u32 nvmd_type;
4426 	int rc;
4427 	struct pm8001_ccb_info *ccb;
4428 	struct get_nvm_data_req nvmd_req;
4429 	struct fw_control_ex *fw_control_context;
4430 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4431 
4432 	nvmd_type = ioctl_payload->minor_function;
4433 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4434 	if (!fw_control_context)
4435 		return -ENOMEM;
4436 	fw_control_context->usrAddr = (u8 *)ioctl_payload->func_specific;
4437 	fw_control_context->len = ioctl_payload->rd_length;
4438 	memset(&nvmd_req, 0, sizeof(nvmd_req));
4439 
4440 	ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
4441 	if (!ccb) {
4442 		kfree(fw_control_context);
4443 		return -SAS_QUEUE_FULL;
4444 	}
4445 	ccb->fw_control_context = fw_control_context;
4446 
4447 	nvmd_req.tag = cpu_to_le32(ccb->ccb_tag);
4448 
4449 	switch (nvmd_type) {
4450 	case TWI_DEVICE: {
4451 		u32 twi_addr, twi_page_size;
4452 		twi_addr = 0xa8;
4453 		twi_page_size = 2;
4454 
4455 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
4456 			twi_page_size << 8 | TWI_DEVICE);
4457 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4458 		nvmd_req.resp_addr_hi =
4459 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4460 		nvmd_req.resp_addr_lo =
4461 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4462 		break;
4463 	}
4464 	case C_SEEPROM: {
4465 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
4466 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4467 		nvmd_req.resp_addr_hi =
4468 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4469 		nvmd_req.resp_addr_lo =
4470 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4471 		break;
4472 	}
4473 	case VPD_FLASH: {
4474 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
4475 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4476 		nvmd_req.resp_addr_hi =
4477 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4478 		nvmd_req.resp_addr_lo =
4479 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4480 		break;
4481 	}
4482 	case EXPAN_ROM: {
4483 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
4484 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4485 		nvmd_req.resp_addr_hi =
4486 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4487 		nvmd_req.resp_addr_lo =
4488 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4489 		break;
4490 	}
4491 	case IOP_RDUMP: {
4492 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | IOP_RDUMP);
4493 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4494 		nvmd_req.vpd_offset = cpu_to_le32(ioctl_payload->offset);
4495 		nvmd_req.resp_addr_hi =
4496 		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4497 		nvmd_req.resp_addr_lo =
4498 		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4499 		break;
4500 	}
4501 	default:
4502 		break;
4503 	}
4504 
4505 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &nvmd_req,
4506 				  sizeof(nvmd_req), 0);
4507 	if (rc) {
4508 		kfree(fw_control_context);
4509 		pm8001_ccb_free(pm8001_ha, ccb);
4510 	}
4511 	return rc;
4512 }
4513 
4514 int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha,
4515 	void *payload)
4516 {
4517 	u32 opc = OPC_INB_SET_NVMD_DATA;
4518 	u32 nvmd_type;
4519 	int rc;
4520 	struct pm8001_ccb_info *ccb;
4521 	struct set_nvm_data_req nvmd_req;
4522 	struct fw_control_ex *fw_control_context;
4523 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4524 
4525 	nvmd_type = ioctl_payload->minor_function;
4526 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4527 	if (!fw_control_context)
4528 		return -ENOMEM;
4529 
4530 	memcpy(pm8001_ha->memoryMap.region[NVMD].virt_ptr,
4531 		&ioctl_payload->func_specific,
4532 		ioctl_payload->wr_length);
4533 	memset(&nvmd_req, 0, sizeof(nvmd_req));
4534 
4535 	ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
4536 	if (!ccb) {
4537 		kfree(fw_control_context);
4538 		return -SAS_QUEUE_FULL;
4539 	}
4540 	ccb->fw_control_context = fw_control_context;
4541 
4542 	nvmd_req.tag = cpu_to_le32(ccb->ccb_tag);
4543 	switch (nvmd_type) {
4544 	case TWI_DEVICE: {
4545 		u32 twi_addr, twi_page_size;
4546 		twi_addr = 0xa8;
4547 		twi_page_size = 2;
4548 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4549 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
4550 			twi_page_size << 8 | TWI_DEVICE);
4551 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4552 		nvmd_req.resp_addr_hi =
4553 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4554 		nvmd_req.resp_addr_lo =
4555 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4556 		break;
4557 	}
4558 	case C_SEEPROM:
4559 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
4560 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4561 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4562 		nvmd_req.resp_addr_hi =
4563 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4564 		nvmd_req.resp_addr_lo =
4565 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4566 		break;
4567 	case VPD_FLASH:
4568 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
4569 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4570 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4571 		nvmd_req.resp_addr_hi =
4572 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4573 		nvmd_req.resp_addr_lo =
4574 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4575 		break;
4576 	case EXPAN_ROM:
4577 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
4578 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4579 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4580 		nvmd_req.resp_addr_hi =
4581 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4582 		nvmd_req.resp_addr_lo =
4583 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4584 		break;
4585 	default:
4586 		break;
4587 	}
4588 
4589 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &nvmd_req,
4590 			sizeof(nvmd_req), 0);
4591 	if (rc) {
4592 		kfree(fw_control_context);
4593 		pm8001_ccb_free(pm8001_ha, ccb);
4594 	}
4595 	return rc;
4596 }
4597 
4598 /**
4599  * pm8001_chip_fw_flash_update_build - support the firmware update operation
4600  * @pm8001_ha: our hba card information.
4601  * @fw_flash_updata_info: firmware flash update param
4602  * @tag: Tag to apply to the payload
4603  */
4604 int
4605 pm8001_chip_fw_flash_update_build(struct pm8001_hba_info *pm8001_ha,
4606 	void *fw_flash_updata_info, u32 tag)
4607 {
4608 	struct fw_flash_Update_req payload;
4609 	struct fw_flash_updata_info *info;
4610 	u32 opc = OPC_INB_FW_FLASH_UPDATE;
4611 
4612 	memset(&payload, 0, sizeof(struct fw_flash_Update_req));
4613 	info = fw_flash_updata_info;
4614 	payload.tag = cpu_to_le32(tag);
4615 	payload.cur_image_len = cpu_to_le32(info->cur_image_len);
4616 	payload.cur_image_offset = cpu_to_le32(info->cur_image_offset);
4617 	payload.total_image_len = cpu_to_le32(info->total_image_len);
4618 	payload.len = info->sgl.im_len.len ;
4619 	payload.sgl_addr_lo =
4620 		cpu_to_le32(lower_32_bits(le64_to_cpu(info->sgl.addr)));
4621 	payload.sgl_addr_hi =
4622 		cpu_to_le32(upper_32_bits(le64_to_cpu(info->sgl.addr)));
4623 
4624 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4625 				    sizeof(payload), 0);
4626 }
4627 
4628 int
4629 pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
4630 	void *payload)
4631 {
4632 	struct fw_flash_updata_info flash_update_info;
4633 	struct fw_control_info *fw_control;
4634 	struct fw_control_ex *fw_control_context;
4635 	int rc;
4636 	struct pm8001_ccb_info *ccb;
4637 	void *buffer = pm8001_ha->memoryMap.region[FW_FLASH].virt_ptr;
4638 	dma_addr_t phys_addr = pm8001_ha->memoryMap.region[FW_FLASH].phys_addr;
4639 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4640 
4641 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4642 	if (!fw_control_context)
4643 		return -ENOMEM;
4644 	fw_control = (struct fw_control_info *)&ioctl_payload->func_specific;
4645 	pm8001_dbg(pm8001_ha, DEVIO,
4646 		   "dma fw_control context input length :%x\n",
4647 		   fw_control->len);
4648 	memcpy(buffer, fw_control->buffer, fw_control->len);
4649 	flash_update_info.sgl.addr = cpu_to_le64(phys_addr);
4650 	flash_update_info.sgl.im_len.len = cpu_to_le32(fw_control->len);
4651 	flash_update_info.sgl.im_len.e = 0;
4652 	flash_update_info.cur_image_offset = fw_control->offset;
4653 	flash_update_info.cur_image_len = fw_control->len;
4654 	flash_update_info.total_image_len = fw_control->size;
4655 	fw_control_context->fw_control = fw_control;
4656 	fw_control_context->virtAddr = buffer;
4657 	fw_control_context->phys_addr = phys_addr;
4658 	fw_control_context->len = fw_control->len;
4659 
4660 	ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
4661 	if (!ccb) {
4662 		kfree(fw_control_context);
4663 		return -SAS_QUEUE_FULL;
4664 	}
4665 	ccb->fw_control_context = fw_control_context;
4666 
4667 	rc = pm8001_chip_fw_flash_update_build(pm8001_ha, &flash_update_info,
4668 					       ccb->ccb_tag);
4669 	if (rc) {
4670 		kfree(fw_control_context);
4671 		pm8001_ccb_free(pm8001_ha, ccb);
4672 	}
4673 
4674 	return rc;
4675 }
4676 
4677 ssize_t
4678 pm8001_get_gsm_dump(struct device *cdev, u32 length, char *buf)
4679 {
4680 	u32 value, rem, offset = 0, bar = 0;
4681 	u32 index, work_offset, dw_length;
4682 	u32 shift_value, gsm_base, gsm_dump_offset;
4683 	char *direct_data;
4684 	struct Scsi_Host *shost = class_to_shost(cdev);
4685 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
4686 	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
4687 
4688 	direct_data = buf;
4689 	gsm_dump_offset = pm8001_ha->fatal_forensic_shift_offset;
4690 
4691 	/* check max is 1 Mbytes */
4692 	if ((length > 0x100000) || (gsm_dump_offset & 3) ||
4693 		((gsm_dump_offset + length) > 0x1000000))
4694 			return -EINVAL;
4695 
4696 	if (pm8001_ha->chip_id == chip_8001)
4697 		bar = 2;
4698 	else
4699 		bar = 1;
4700 
4701 	work_offset = gsm_dump_offset & 0xFFFF0000;
4702 	offset = gsm_dump_offset & 0x0000FFFF;
4703 	gsm_dump_offset = work_offset;
4704 	/* adjust length to dword boundary */
4705 	rem = length & 3;
4706 	dw_length = length >> 2;
4707 
4708 	for (index = 0; index < dw_length; index++) {
4709 		if ((work_offset + offset) & 0xFFFF0000) {
4710 			if (pm8001_ha->chip_id == chip_8001)
4711 				shift_value = ((gsm_dump_offset + offset) &
4712 						SHIFT_REG_64K_MASK);
4713 			else
4714 				shift_value = (((gsm_dump_offset + offset) &
4715 						SHIFT_REG_64K_MASK) >>
4716 						SHIFT_REG_BIT_SHIFT);
4717 
4718 			if (pm8001_ha->chip_id == chip_8001) {
4719 				gsm_base = GSM_BASE;
4720 				if (-1 == pm8001_bar4_shift(pm8001_ha,
4721 						(gsm_base + shift_value)))
4722 					return -EIO;
4723 			} else {
4724 				gsm_base = 0;
4725 				if (-1 == pm80xx_bar4_shift(pm8001_ha,
4726 						(gsm_base + shift_value)))
4727 					return -EIO;
4728 			}
4729 			gsm_dump_offset = (gsm_dump_offset + offset) &
4730 						0xFFFF0000;
4731 			work_offset = 0;
4732 			offset = offset & 0x0000FFFF;
4733 		}
4734 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
4735 						0x0000FFFF);
4736 		direct_data += sprintf(direct_data, "%08x ", value);
4737 		offset += 4;
4738 	}
4739 	if (rem != 0) {
4740 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
4741 						0x0000FFFF);
4742 		/* xfr for non_dw */
4743 		direct_data += sprintf(direct_data, "%08x ", value);
4744 	}
4745 	/* Shift back to BAR4 original address */
4746 	if (-1 == pm8001_bar4_shift(pm8001_ha, 0))
4747 			return -EIO;
4748 	pm8001_ha->fatal_forensic_shift_offset += 1024;
4749 
4750 	if (pm8001_ha->fatal_forensic_shift_offset >= 0x100000)
4751 		pm8001_ha->fatal_forensic_shift_offset = 0;
4752 	return direct_data - buf;
4753 }
4754 
4755 int
4756 pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
4757 	struct pm8001_device *pm8001_dev, u32 state)
4758 {
4759 	struct set_dev_state_req payload;
4760 	struct pm8001_ccb_info *ccb;
4761 	int rc;
4762 	u32 opc = OPC_INB_SET_DEVICE_STATE;
4763 
4764 	memset(&payload, 0, sizeof(payload));
4765 
4766 	ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_dev, NULL);
4767 	if (!ccb)
4768 		return -SAS_QUEUE_FULL;
4769 
4770 	payload.tag = cpu_to_le32(ccb->ccb_tag);
4771 	payload.device_id = cpu_to_le32(pm8001_dev->device_id);
4772 	payload.nds = cpu_to_le32(state);
4773 
4774 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4775 				  sizeof(payload), 0);
4776 	if (rc)
4777 		pm8001_ccb_free(pm8001_ha, ccb);
4778 
4779 	return rc;
4780 }
4781 
4782 static int
4783 pm8001_chip_sas_re_initialization(struct pm8001_hba_info *pm8001_ha)
4784 {
4785 	struct sas_re_initialization_req payload;
4786 	struct pm8001_ccb_info *ccb;
4787 	int rc;
4788 	u32 opc = OPC_INB_SAS_RE_INITIALIZE;
4789 
4790 	memset(&payload, 0, sizeof(payload));
4791 
4792 	ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
4793 	if (!ccb)
4794 		return -SAS_QUEUE_FULL;
4795 
4796 	payload.tag = cpu_to_le32(ccb->ccb_tag);
4797 	payload.SSAHOLT = cpu_to_le32(0xd << 25);
4798 	payload.sata_hol_tmo = cpu_to_le32(80);
4799 	payload.open_reject_cmdretries_data_retries = cpu_to_le32(0xff00ff);
4800 
4801 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4802 				  sizeof(payload), 0);
4803 	if (rc)
4804 		pm8001_ccb_free(pm8001_ha, ccb);
4805 
4806 	return rc;
4807 }
4808 
4809 const struct pm8001_dispatch pm8001_8001_dispatch = {
4810 	.name			= "pmc8001",
4811 	.chip_init		= pm8001_chip_init,
4812 	.chip_post_init		= pm8001_chip_post_init,
4813 	.chip_soft_rst		= pm8001_chip_soft_rst,
4814 	.chip_rst		= pm8001_hw_chip_rst,
4815 	.chip_iounmap		= pm8001_chip_iounmap,
4816 	.isr			= pm8001_chip_isr,
4817 	.is_our_interrupt	= pm8001_chip_is_our_interrupt,
4818 	.isr_process_oq		= process_oq,
4819 	.interrupt_enable 	= pm8001_chip_interrupt_enable,
4820 	.interrupt_disable	= pm8001_chip_interrupt_disable,
4821 	.make_prd		= pm8001_chip_make_sg,
4822 	.smp_req		= pm8001_chip_smp_req,
4823 	.ssp_io_req		= pm8001_chip_ssp_io_req,
4824 	.sata_req		= pm8001_chip_sata_req,
4825 	.phy_start_req		= pm8001_chip_phy_start_req,
4826 	.phy_stop_req		= pm8001_chip_phy_stop_req,
4827 	.reg_dev_req		= pm8001_chip_reg_dev_req,
4828 	.dereg_dev_req		= pm8001_chip_dereg_dev_req,
4829 	.phy_ctl_req		= pm8001_chip_phy_ctl_req,
4830 	.task_abort		= pm8001_chip_abort_task,
4831 	.ssp_tm_req		= pm8001_chip_ssp_tm_req,
4832 	.get_nvmd_req		= pm8001_chip_get_nvmd_req,
4833 	.set_nvmd_req		= pm8001_chip_set_nvmd_req,
4834 	.fw_flash_update_req	= pm8001_chip_fw_flash_update_req,
4835 	.set_dev_state_req	= pm8001_chip_set_dev_state_req,
4836 	.sas_re_init_req	= pm8001_chip_sas_re_initialization,
4837 	.fatal_errors		= pm80xx_fatal_errors,
4838 };
4839