xref: /openbmc/linux/drivers/scsi/pm8001/pm8001_hwi.c (revision 7587cdef)
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 	}	break;
1728 	}
1729 	kfree(pw);
1730 }
1731 
1732 int pm8001_handle_event(struct pm8001_hba_info *pm8001_ha, void *data,
1733 			       int handler)
1734 {
1735 	struct pm8001_work *pw;
1736 	int ret = 0;
1737 
1738 	pw = kmalloc(sizeof(struct pm8001_work), GFP_ATOMIC);
1739 	if (pw) {
1740 		pw->pm8001_ha = pm8001_ha;
1741 		pw->data = data;
1742 		pw->handler = handler;
1743 		INIT_WORK(&pw->work, pm8001_work_fn);
1744 		queue_work(pm8001_wq, &pw->work);
1745 	} else
1746 		ret = -ENOMEM;
1747 
1748 	return ret;
1749 }
1750 
1751 static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
1752 		struct pm8001_device *pm8001_ha_dev)
1753 {
1754 	struct pm8001_ccb_info *ccb;
1755 	struct sas_task *task;
1756 	struct task_abort_req task_abort;
1757 	u32 opc = OPC_INB_SATA_ABORT;
1758 	int ret;
1759 
1760 	pm8001_ha_dev->id |= NCQ_ABORT_ALL_FLAG;
1761 	pm8001_ha_dev->id &= ~NCQ_READ_LOG_FLAG;
1762 
1763 	task = sas_alloc_slow_task(GFP_ATOMIC);
1764 	if (!task) {
1765 		pm8001_dbg(pm8001_ha, FAIL, "cannot allocate task\n");
1766 		return;
1767 	}
1768 
1769 	task->task_done = pm8001_task_done;
1770 
1771 	ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_ha_dev, task);
1772 	if (!ccb) {
1773 		sas_free_task(task);
1774 		return;
1775 	}
1776 
1777 	memset(&task_abort, 0, sizeof(task_abort));
1778 	task_abort.abort_all = cpu_to_le32(1);
1779 	task_abort.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
1780 	task_abort.tag = cpu_to_le32(ccb->ccb_tag);
1781 
1782 	ret = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &task_abort,
1783 				   sizeof(task_abort), 0);
1784 	if (ret) {
1785 		sas_free_task(task);
1786 		pm8001_ccb_free(pm8001_ha, ccb);
1787 	}
1788 }
1789 
1790 static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
1791 		struct pm8001_device *pm8001_ha_dev)
1792 {
1793 	struct sata_start_req sata_cmd;
1794 	int res;
1795 	struct pm8001_ccb_info *ccb;
1796 	struct sas_task *task = NULL;
1797 	struct host_to_dev_fis fis;
1798 	struct domain_device *dev;
1799 	u32 opc = OPC_INB_SATA_HOST_OPSTART;
1800 
1801 	task = sas_alloc_slow_task(GFP_ATOMIC);
1802 	if (!task) {
1803 		pm8001_dbg(pm8001_ha, FAIL, "cannot allocate task !!!\n");
1804 		return;
1805 	}
1806 	task->task_done = pm8001_task_done;
1807 
1808 	/*
1809 	 * Allocate domain device by ourselves as libsas is not going to
1810 	 * provide any.
1811 	 */
1812 	dev = kzalloc(sizeof(struct domain_device), GFP_ATOMIC);
1813 	if (!dev) {
1814 		sas_free_task(task);
1815 		pm8001_dbg(pm8001_ha, FAIL,
1816 			   "Domain device cannot be allocated\n");
1817 		return;
1818 	}
1819 	task->dev = dev;
1820 	task->dev->lldd_dev = pm8001_ha_dev;
1821 
1822 	ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_ha_dev, task);
1823 	if (!ccb) {
1824 		sas_free_task(task);
1825 		kfree(dev);
1826 		return;
1827 	}
1828 
1829 	pm8001_ha_dev->id |= NCQ_READ_LOG_FLAG;
1830 	pm8001_ha_dev->id |= NCQ_2ND_RLE_FLAG;
1831 
1832 	/* construct read log FIS */
1833 	memset(&fis, 0, sizeof(struct host_to_dev_fis));
1834 	fis.fis_type = 0x27;
1835 	fis.flags = 0x80;
1836 	fis.command = ATA_CMD_READ_LOG_EXT;
1837 	fis.lbal = 0x10;
1838 	fis.sector_count = 0x1;
1839 
1840 	memset(&sata_cmd, 0, sizeof(sata_cmd));
1841 	sata_cmd.tag = cpu_to_le32(ccb->ccb_tag);
1842 	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
1843 	sata_cmd.ncqtag_atap_dir_m = cpu_to_le32((0x1 << 7) | (0x5 << 9));
1844 	memcpy(&sata_cmd.sata_fis, &fis, sizeof(struct host_to_dev_fis));
1845 
1846 	res = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &sata_cmd,
1847 				   sizeof(sata_cmd), 0);
1848 	if (res) {
1849 		sas_free_task(task);
1850 		pm8001_ccb_free(pm8001_ha, ccb);
1851 		kfree(dev);
1852 	}
1853 }
1854 
1855 /**
1856  * mpi_ssp_completion- process the event that FW response to the SSP request.
1857  * @pm8001_ha: our hba card information
1858  * @piomb: the message contents of this outbound message.
1859  *
1860  * When FW has completed a ssp request for example a IO request, after it has
1861  * filled the SG data with the data, it will trigger this event representing
1862  * that he has finished the job; please check the corresponding buffer.
1863  * So we will tell the caller who maybe waiting the result to tell upper layer
1864  * that the task has been finished.
1865  */
1866 static void
1867 mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
1868 {
1869 	struct sas_task *t;
1870 	struct pm8001_ccb_info *ccb;
1871 	unsigned long flags;
1872 	u32 status;
1873 	u32 param;
1874 	u32 tag;
1875 	struct ssp_completion_resp *psspPayload;
1876 	struct task_status_struct *ts;
1877 	struct ssp_response_iu *iu;
1878 	struct pm8001_device *pm8001_dev;
1879 	psspPayload = (struct ssp_completion_resp *)(piomb + 4);
1880 	status = le32_to_cpu(psspPayload->status);
1881 	tag = le32_to_cpu(psspPayload->tag);
1882 	ccb = &pm8001_ha->ccb_info[tag];
1883 	if ((status == IO_ABORTED) && ccb->open_retry) {
1884 		/* Being completed by another */
1885 		ccb->open_retry = 0;
1886 		return;
1887 	}
1888 	pm8001_dev = ccb->device;
1889 	param = le32_to_cpu(psspPayload->param);
1890 
1891 	t = ccb->task;
1892 
1893 	if (status && status != IO_UNDERFLOW)
1894 		pm8001_dbg(pm8001_ha, FAIL, "sas IO status 0x%x\n", status);
1895 	if (unlikely(!t || !t->lldd_task || !t->dev))
1896 		return;
1897 	ts = &t->task_status;
1898 	/* Print sas address of IO failed device */
1899 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
1900 		(status != IO_UNDERFLOW))
1901 		pm8001_dbg(pm8001_ha, FAIL, "SAS Address of IO Failure Drive:%016llx\n",
1902 			   SAS_ADDR(t->dev->sas_addr));
1903 
1904 	if (status)
1905 		pm8001_dbg(pm8001_ha, IOERR,
1906 			   "status:0x%x, tag:0x%x, task:0x%p\n",
1907 			   status, tag, t);
1908 
1909 	switch (status) {
1910 	case IO_SUCCESS:
1911 		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS,param = %d\n",
1912 			   param);
1913 		if (param == 0) {
1914 			ts->resp = SAS_TASK_COMPLETE;
1915 			ts->stat = SAS_SAM_STAT_GOOD;
1916 		} else {
1917 			ts->resp = SAS_TASK_COMPLETE;
1918 			ts->stat = SAS_PROTO_RESPONSE;
1919 			ts->residual = param;
1920 			iu = &psspPayload->ssp_resp_iu;
1921 			sas_ssp_task_response(pm8001_ha->dev, t, iu);
1922 		}
1923 		if (pm8001_dev)
1924 			atomic_dec(&pm8001_dev->running_req);
1925 		break;
1926 	case IO_ABORTED:
1927 		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB Tag\n");
1928 		ts->resp = SAS_TASK_COMPLETE;
1929 		ts->stat = SAS_ABORTED_TASK;
1930 		break;
1931 	case IO_UNDERFLOW:
1932 		/* SSP Completion with error */
1933 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW,param = %d\n",
1934 			   param);
1935 		ts->resp = SAS_TASK_COMPLETE;
1936 		ts->stat = SAS_DATA_UNDERRUN;
1937 		ts->residual = param;
1938 		if (pm8001_dev)
1939 			atomic_dec(&pm8001_dev->running_req);
1940 		break;
1941 	case IO_NO_DEVICE:
1942 		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
1943 		ts->resp = SAS_TASK_UNDELIVERED;
1944 		ts->stat = SAS_PHY_DOWN;
1945 		break;
1946 	case IO_XFER_ERROR_BREAK:
1947 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
1948 		ts->resp = SAS_TASK_COMPLETE;
1949 		ts->stat = SAS_OPEN_REJECT;
1950 		/* Force the midlayer to retry */
1951 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1952 		break;
1953 	case IO_XFER_ERROR_PHY_NOT_READY:
1954 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
1955 		ts->resp = SAS_TASK_COMPLETE;
1956 		ts->stat = SAS_OPEN_REJECT;
1957 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1958 		break;
1959 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
1960 		pm8001_dbg(pm8001_ha, IO,
1961 			   "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
1962 		ts->resp = SAS_TASK_COMPLETE;
1963 		ts->stat = SAS_OPEN_REJECT;
1964 		ts->open_rej_reason = SAS_OREJ_EPROTO;
1965 		break;
1966 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
1967 		pm8001_dbg(pm8001_ha, IO,
1968 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
1969 		ts->resp = SAS_TASK_COMPLETE;
1970 		ts->stat = SAS_OPEN_REJECT;
1971 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1972 		break;
1973 	case IO_OPEN_CNX_ERROR_BREAK:
1974 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
1975 		ts->resp = SAS_TASK_COMPLETE;
1976 		ts->stat = SAS_OPEN_REJECT;
1977 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1978 		break;
1979 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
1980 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
1981 		ts->resp = SAS_TASK_COMPLETE;
1982 		ts->stat = SAS_OPEN_REJECT;
1983 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1984 		if (!t->uldd_task)
1985 			pm8001_handle_event(pm8001_ha,
1986 				pm8001_dev,
1987 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
1988 		break;
1989 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
1990 		pm8001_dbg(pm8001_ha, IO,
1991 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
1992 		ts->resp = SAS_TASK_COMPLETE;
1993 		ts->stat = SAS_OPEN_REJECT;
1994 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
1995 		break;
1996 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
1997 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
1998 		ts->resp = SAS_TASK_COMPLETE;
1999 		ts->stat = SAS_OPEN_REJECT;
2000 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2001 		break;
2002 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2003 		pm8001_dbg(pm8001_ha, IO,
2004 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2005 		ts->resp = SAS_TASK_UNDELIVERED;
2006 		ts->stat = SAS_OPEN_REJECT;
2007 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2008 		break;
2009 	case IO_XFER_ERROR_NAK_RECEIVED:
2010 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
2011 		ts->resp = SAS_TASK_COMPLETE;
2012 		ts->stat = SAS_OPEN_REJECT;
2013 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2014 		break;
2015 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2016 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
2017 		ts->resp = SAS_TASK_COMPLETE;
2018 		ts->stat = SAS_NAK_R_ERR;
2019 		break;
2020 	case IO_XFER_ERROR_DMA:
2021 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_DMA\n");
2022 		ts->resp = SAS_TASK_COMPLETE;
2023 		ts->stat = SAS_OPEN_REJECT;
2024 		break;
2025 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2026 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2027 		ts->resp = SAS_TASK_COMPLETE;
2028 		ts->stat = SAS_OPEN_REJECT;
2029 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2030 		break;
2031 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2032 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
2033 		ts->resp = SAS_TASK_COMPLETE;
2034 		ts->stat = SAS_OPEN_REJECT;
2035 		break;
2036 	case IO_PORT_IN_RESET:
2037 		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
2038 		ts->resp = SAS_TASK_COMPLETE;
2039 		ts->stat = SAS_OPEN_REJECT;
2040 		break;
2041 	case IO_DS_NON_OPERATIONAL:
2042 		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
2043 		ts->resp = SAS_TASK_COMPLETE;
2044 		ts->stat = SAS_OPEN_REJECT;
2045 		if (!t->uldd_task)
2046 			pm8001_handle_event(pm8001_ha,
2047 				pm8001_dev,
2048 				IO_DS_NON_OPERATIONAL);
2049 		break;
2050 	case IO_DS_IN_RECOVERY:
2051 		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_RECOVERY\n");
2052 		ts->resp = SAS_TASK_COMPLETE;
2053 		ts->stat = SAS_OPEN_REJECT;
2054 		break;
2055 	case IO_TM_TAG_NOT_FOUND:
2056 		pm8001_dbg(pm8001_ha, IO, "IO_TM_TAG_NOT_FOUND\n");
2057 		ts->resp = SAS_TASK_COMPLETE;
2058 		ts->stat = SAS_OPEN_REJECT;
2059 		break;
2060 	case IO_SSP_EXT_IU_ZERO_LEN_ERROR:
2061 		pm8001_dbg(pm8001_ha, IO, "IO_SSP_EXT_IU_ZERO_LEN_ERROR\n");
2062 		ts->resp = SAS_TASK_COMPLETE;
2063 		ts->stat = SAS_OPEN_REJECT;
2064 		break;
2065 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2066 		pm8001_dbg(pm8001_ha, IO,
2067 			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
2068 		ts->resp = SAS_TASK_COMPLETE;
2069 		ts->stat = SAS_OPEN_REJECT;
2070 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2071 		break;
2072 	default:
2073 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
2074 		/* not allowed case. Therefore, return failed status */
2075 		ts->resp = SAS_TASK_COMPLETE;
2076 		ts->stat = SAS_OPEN_REJECT;
2077 		break;
2078 	}
2079 	pm8001_dbg(pm8001_ha, IO, "scsi_status = %x\n",
2080 		   psspPayload->ssp_resp_iu.status);
2081 	spin_lock_irqsave(&t->task_state_lock, flags);
2082 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2083 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2084 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2085 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2086 		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",
2087 			   t, status, ts->resp, ts->stat);
2088 		pm8001_ccb_task_free(pm8001_ha, ccb);
2089 	} else {
2090 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2091 		pm8001_ccb_task_free(pm8001_ha, ccb);
2092 		mb();/* in order to force CPU ordering */
2093 		t->task_done(t);
2094 	}
2095 }
2096 
2097 /*See the comments for mpi_ssp_completion */
2098 static void mpi_ssp_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
2099 {
2100 	struct sas_task *t;
2101 	unsigned long flags;
2102 	struct task_status_struct *ts;
2103 	struct pm8001_ccb_info *ccb;
2104 	struct pm8001_device *pm8001_dev;
2105 	struct ssp_event_resp *psspPayload =
2106 		(struct ssp_event_resp *)(piomb + 4);
2107 	u32 event = le32_to_cpu(psspPayload->event);
2108 	u32 tag = le32_to_cpu(psspPayload->tag);
2109 	u32 port_id = le32_to_cpu(psspPayload->port_id);
2110 	u32 dev_id = le32_to_cpu(psspPayload->device_id);
2111 
2112 	ccb = &pm8001_ha->ccb_info[tag];
2113 	t = ccb->task;
2114 	pm8001_dev = ccb->device;
2115 	if (event)
2116 		pm8001_dbg(pm8001_ha, FAIL, "sas IO status 0x%x\n", event);
2117 	if (unlikely(!t || !t->lldd_task || !t->dev))
2118 		return;
2119 	ts = &t->task_status;
2120 	pm8001_dbg(pm8001_ha, DEVIO, "port_id = %x,device_id = %x\n",
2121 		   port_id, dev_id);
2122 	switch (event) {
2123 	case IO_OVERFLOW:
2124 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
2125 		ts->resp = SAS_TASK_COMPLETE;
2126 		ts->stat = SAS_DATA_OVERRUN;
2127 		ts->residual = 0;
2128 		if (pm8001_dev)
2129 			atomic_dec(&pm8001_dev->running_req);
2130 		break;
2131 	case IO_XFER_ERROR_BREAK:
2132 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2133 		pm8001_handle_event(pm8001_ha, t, IO_XFER_ERROR_BREAK);
2134 		return;
2135 	case IO_XFER_ERROR_PHY_NOT_READY:
2136 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
2137 		ts->resp = SAS_TASK_COMPLETE;
2138 		ts->stat = SAS_OPEN_REJECT;
2139 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2140 		break;
2141 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2142 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2143 		ts->resp = SAS_TASK_COMPLETE;
2144 		ts->stat = SAS_OPEN_REJECT;
2145 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2146 		break;
2147 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2148 		pm8001_dbg(pm8001_ha, IO,
2149 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2150 		ts->resp = SAS_TASK_COMPLETE;
2151 		ts->stat = SAS_OPEN_REJECT;
2152 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2153 		break;
2154 	case IO_OPEN_CNX_ERROR_BREAK:
2155 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2156 		ts->resp = SAS_TASK_COMPLETE;
2157 		ts->stat = SAS_OPEN_REJECT;
2158 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2159 		break;
2160 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2161 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2162 		ts->resp = SAS_TASK_COMPLETE;
2163 		ts->stat = SAS_OPEN_REJECT;
2164 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2165 		if (!t->uldd_task)
2166 			pm8001_handle_event(pm8001_ha,
2167 				pm8001_dev,
2168 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2169 		break;
2170 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2171 		pm8001_dbg(pm8001_ha, IO,
2172 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2173 		ts->resp = SAS_TASK_COMPLETE;
2174 		ts->stat = SAS_OPEN_REJECT;
2175 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2176 		break;
2177 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2178 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2179 		ts->resp = SAS_TASK_COMPLETE;
2180 		ts->stat = SAS_OPEN_REJECT;
2181 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2182 		break;
2183 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2184 		pm8001_dbg(pm8001_ha, IO,
2185 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2186 		ts->resp = SAS_TASK_COMPLETE;
2187 		ts->stat = SAS_OPEN_REJECT;
2188 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2189 		break;
2190 	case IO_XFER_ERROR_NAK_RECEIVED:
2191 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
2192 		ts->resp = SAS_TASK_COMPLETE;
2193 		ts->stat = SAS_OPEN_REJECT;
2194 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2195 		break;
2196 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2197 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
2198 		ts->resp = SAS_TASK_COMPLETE;
2199 		ts->stat = SAS_NAK_R_ERR;
2200 		break;
2201 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2202 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2203 		pm8001_handle_event(pm8001_ha, t, IO_XFER_OPEN_RETRY_TIMEOUT);
2204 		return;
2205 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2206 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_UNEXPECTED_PHASE\n");
2207 		ts->resp = SAS_TASK_COMPLETE;
2208 		ts->stat = SAS_DATA_OVERRUN;
2209 		break;
2210 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2211 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_XFER_RDY_OVERRUN\n");
2212 		ts->resp = SAS_TASK_COMPLETE;
2213 		ts->stat = SAS_DATA_OVERRUN;
2214 		break;
2215 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2216 		pm8001_dbg(pm8001_ha, IO,
2217 			   "IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n");
2218 		ts->resp = SAS_TASK_COMPLETE;
2219 		ts->stat = SAS_DATA_OVERRUN;
2220 		break;
2221 	case IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT:
2222 		pm8001_dbg(pm8001_ha, IO,
2223 			   "IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT\n");
2224 		ts->resp = SAS_TASK_COMPLETE;
2225 		ts->stat = SAS_DATA_OVERRUN;
2226 		break;
2227 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2228 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
2229 		ts->resp = SAS_TASK_COMPLETE;
2230 		ts->stat = SAS_DATA_OVERRUN;
2231 		break;
2232 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2233 		pm8001_dbg(pm8001_ha, IO,
2234 			   "IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n");
2235 		ts->resp = SAS_TASK_COMPLETE;
2236 		ts->stat = SAS_DATA_OVERRUN;
2237 		break;
2238 	case IO_XFER_CMD_FRAME_ISSUED:
2239 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_CMD_FRAME_ISSUED\n");
2240 		return;
2241 	default:
2242 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", event);
2243 		/* not allowed case. Therefore, return failed status */
2244 		ts->resp = SAS_TASK_COMPLETE;
2245 		ts->stat = SAS_DATA_OVERRUN;
2246 		break;
2247 	}
2248 	spin_lock_irqsave(&t->task_state_lock, flags);
2249 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2250 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2251 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2252 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2253 		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",
2254 			   t, event, ts->resp, ts->stat);
2255 		pm8001_ccb_task_free(pm8001_ha, ccb);
2256 	} else {
2257 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2258 		pm8001_ccb_task_free(pm8001_ha, ccb);
2259 		mb();/* in order to force CPU ordering */
2260 		t->task_done(t);
2261 	}
2262 }
2263 
2264 /*See the comments for mpi_ssp_completion */
2265 static void
2266 mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2267 {
2268 	struct sas_task *t;
2269 	struct pm8001_ccb_info *ccb;
2270 	u32 param;
2271 	u32 status;
2272 	u32 tag;
2273 	int i, j;
2274 	u8 sata_addr_low[4];
2275 	u32 temp_sata_addr_low;
2276 	u8 sata_addr_hi[4];
2277 	u32 temp_sata_addr_hi;
2278 	struct sata_completion_resp *psataPayload;
2279 	struct task_status_struct *ts;
2280 	struct ata_task_resp *resp ;
2281 	u32 *sata_resp;
2282 	struct pm8001_device *pm8001_dev;
2283 	unsigned long flags;
2284 
2285 	psataPayload = (struct sata_completion_resp *)(piomb + 4);
2286 	status = le32_to_cpu(psataPayload->status);
2287 	param = le32_to_cpu(psataPayload->param);
2288 	tag = le32_to_cpu(psataPayload->tag);
2289 
2290 	ccb = &pm8001_ha->ccb_info[tag];
2291 	t = ccb->task;
2292 	pm8001_dev = ccb->device;
2293 
2294 	if (t) {
2295 		if (t->dev && (t->dev->lldd_dev))
2296 			pm8001_dev = t->dev->lldd_dev;
2297 	} else {
2298 		pm8001_dbg(pm8001_ha, FAIL, "task null\n");
2299 		return;
2300 	}
2301 
2302 	if ((pm8001_dev && !(pm8001_dev->id & NCQ_READ_LOG_FLAG))
2303 		&& unlikely(!t || !t->lldd_task || !t->dev)) {
2304 		pm8001_dbg(pm8001_ha, FAIL, "task or dev null\n");
2305 		return;
2306 	}
2307 
2308 	ts = &t->task_status;
2309 
2310 	if (status)
2311 		pm8001_dbg(pm8001_ha, IOERR,
2312 			   "status:0x%x, tag:0x%x, task::0x%p\n",
2313 			   status, tag, t);
2314 
2315 	/* Print sas address of IO failed device */
2316 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
2317 		(status != IO_UNDERFLOW)) {
2318 		if (!((t->dev->parent) &&
2319 			(dev_is_expander(t->dev->parent->dev_type)))) {
2320 			for (i = 0, j = 4; j <= 7 && i <= 3; i++, j++)
2321 				sata_addr_low[i] = pm8001_ha->sas_addr[j];
2322 			for (i = 0, j = 0; j <= 3 && i <= 3; i++, j++)
2323 				sata_addr_hi[i] = pm8001_ha->sas_addr[j];
2324 			memcpy(&temp_sata_addr_low, sata_addr_low,
2325 				sizeof(sata_addr_low));
2326 			memcpy(&temp_sata_addr_hi, sata_addr_hi,
2327 				sizeof(sata_addr_hi));
2328 			temp_sata_addr_hi = (((temp_sata_addr_hi >> 24) & 0xff)
2329 						|((temp_sata_addr_hi << 8) &
2330 						0xff0000) |
2331 						((temp_sata_addr_hi >> 8)
2332 						& 0xff00) |
2333 						((temp_sata_addr_hi << 24) &
2334 						0xff000000));
2335 			temp_sata_addr_low = ((((temp_sata_addr_low >> 24)
2336 						& 0xff) |
2337 						((temp_sata_addr_low << 8)
2338 						& 0xff0000) |
2339 						((temp_sata_addr_low >> 8)
2340 						& 0xff00) |
2341 						((temp_sata_addr_low << 24)
2342 						& 0xff000000)) +
2343 						pm8001_dev->attached_phy +
2344 						0x10);
2345 			pm8001_dbg(pm8001_ha, FAIL,
2346 				   "SAS Address of IO Failure Drive:%08x%08x\n",
2347 				   temp_sata_addr_hi,
2348 				   temp_sata_addr_low);
2349 		} else {
2350 			pm8001_dbg(pm8001_ha, FAIL,
2351 				   "SAS Address of IO Failure Drive:%016llx\n",
2352 				   SAS_ADDR(t->dev->sas_addr));
2353 		}
2354 	}
2355 	switch (status) {
2356 	case IO_SUCCESS:
2357 		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
2358 		if (param == 0) {
2359 			ts->resp = SAS_TASK_COMPLETE;
2360 			ts->stat = SAS_SAM_STAT_GOOD;
2361 			/* check if response is for SEND READ LOG */
2362 			if (pm8001_dev &&
2363 			    (pm8001_dev->id & NCQ_READ_LOG_FLAG)) {
2364 				pm8001_send_abort_all(pm8001_ha, pm8001_dev);
2365 				/* Free the tag */
2366 				pm8001_tag_free(pm8001_ha, tag);
2367 				sas_free_task(t);
2368 				return;
2369 			}
2370 		} else {
2371 			u8 len;
2372 			ts->resp = SAS_TASK_COMPLETE;
2373 			ts->stat = SAS_PROTO_RESPONSE;
2374 			ts->residual = param;
2375 			pm8001_dbg(pm8001_ha, IO,
2376 				   "SAS_PROTO_RESPONSE len = %d\n",
2377 				   param);
2378 			sata_resp = &psataPayload->sata_resp[0];
2379 			resp = (struct ata_task_resp *)ts->buf;
2380 			if (t->ata_task.dma_xfer == 0 &&
2381 			    t->data_dir == DMA_FROM_DEVICE) {
2382 				len = sizeof(struct pio_setup_fis);
2383 				pm8001_dbg(pm8001_ha, IO,
2384 					   "PIO read len = %d\n", len);
2385 			} else if (t->ata_task.use_ncq &&
2386 				   t->data_dir != DMA_NONE) {
2387 				len = sizeof(struct set_dev_bits_fis);
2388 				pm8001_dbg(pm8001_ha, IO, "FPDMA len = %d\n",
2389 					   len);
2390 			} else {
2391 				len = sizeof(struct dev_to_host_fis);
2392 				pm8001_dbg(pm8001_ha, IO, "other len = %d\n",
2393 					   len);
2394 			}
2395 			if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) {
2396 				resp->frame_len = len;
2397 				memcpy(&resp->ending_fis[0], sata_resp, len);
2398 				ts->buf_valid_size = sizeof(*resp);
2399 			} else
2400 				pm8001_dbg(pm8001_ha, IO,
2401 					   "response too large\n");
2402 		}
2403 		if (pm8001_dev)
2404 			atomic_dec(&pm8001_dev->running_req);
2405 		break;
2406 	case IO_ABORTED:
2407 		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB Tag\n");
2408 		ts->resp = SAS_TASK_COMPLETE;
2409 		ts->stat = SAS_ABORTED_TASK;
2410 		if (pm8001_dev)
2411 			atomic_dec(&pm8001_dev->running_req);
2412 		break;
2413 		/* following cases are to do cases */
2414 	case IO_UNDERFLOW:
2415 		/* SATA Completion with error */
2416 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW param = %d\n", param);
2417 		ts->resp = SAS_TASK_COMPLETE;
2418 		ts->stat = SAS_DATA_UNDERRUN;
2419 		ts->residual =  param;
2420 		if (pm8001_dev)
2421 			atomic_dec(&pm8001_dev->running_req);
2422 		break;
2423 	case IO_NO_DEVICE:
2424 		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
2425 		ts->resp = SAS_TASK_UNDELIVERED;
2426 		ts->stat = SAS_PHY_DOWN;
2427 		if (pm8001_dev)
2428 			atomic_dec(&pm8001_dev->running_req);
2429 		break;
2430 	case IO_XFER_ERROR_BREAK:
2431 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2432 		ts->resp = SAS_TASK_COMPLETE;
2433 		ts->stat = SAS_INTERRUPTED;
2434 		if (pm8001_dev)
2435 			atomic_dec(&pm8001_dev->running_req);
2436 		break;
2437 	case IO_XFER_ERROR_PHY_NOT_READY:
2438 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
2439 		ts->resp = SAS_TASK_COMPLETE;
2440 		ts->stat = SAS_OPEN_REJECT;
2441 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2442 		if (pm8001_dev)
2443 			atomic_dec(&pm8001_dev->running_req);
2444 		break;
2445 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2446 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2447 		ts->resp = SAS_TASK_COMPLETE;
2448 		ts->stat = SAS_OPEN_REJECT;
2449 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2450 		if (pm8001_dev)
2451 			atomic_dec(&pm8001_dev->running_req);
2452 		break;
2453 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2454 		pm8001_dbg(pm8001_ha, IO,
2455 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2456 		ts->resp = SAS_TASK_COMPLETE;
2457 		ts->stat = SAS_OPEN_REJECT;
2458 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2459 		if (pm8001_dev)
2460 			atomic_dec(&pm8001_dev->running_req);
2461 		break;
2462 	case IO_OPEN_CNX_ERROR_BREAK:
2463 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2464 		ts->resp = SAS_TASK_COMPLETE;
2465 		ts->stat = SAS_OPEN_REJECT;
2466 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2467 		if (pm8001_dev)
2468 			atomic_dec(&pm8001_dev->running_req);
2469 		break;
2470 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2471 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2472 		ts->resp = SAS_TASK_COMPLETE;
2473 		ts->stat = SAS_DEV_NO_RESPONSE;
2474 		if (!t->uldd_task) {
2475 			pm8001_handle_event(pm8001_ha,
2476 				pm8001_dev,
2477 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2478 			ts->resp = SAS_TASK_UNDELIVERED;
2479 			ts->stat = SAS_QUEUE_FULL;
2480 			pm8001_ccb_task_free_done(pm8001_ha, ccb);
2481 			return;
2482 		}
2483 		break;
2484 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2485 		pm8001_dbg(pm8001_ha, IO,
2486 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2487 		ts->resp = SAS_TASK_UNDELIVERED;
2488 		ts->stat = SAS_OPEN_REJECT;
2489 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2490 		if (!t->uldd_task) {
2491 			pm8001_handle_event(pm8001_ha,
2492 				pm8001_dev,
2493 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2494 			ts->resp = SAS_TASK_UNDELIVERED;
2495 			ts->stat = SAS_QUEUE_FULL;
2496 			pm8001_ccb_task_free_done(pm8001_ha, ccb);
2497 			return;
2498 		}
2499 		break;
2500 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2501 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2502 		ts->resp = SAS_TASK_COMPLETE;
2503 		ts->stat = SAS_OPEN_REJECT;
2504 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2505 		if (pm8001_dev)
2506 			atomic_dec(&pm8001_dev->running_req);
2507 		break;
2508 	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
2509 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY\n");
2510 		ts->resp = SAS_TASK_COMPLETE;
2511 		ts->stat = SAS_DEV_NO_RESPONSE;
2512 		if (!t->uldd_task) {
2513 			pm8001_handle_event(pm8001_ha,
2514 				pm8001_dev,
2515 				IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY);
2516 			ts->resp = SAS_TASK_UNDELIVERED;
2517 			ts->stat = SAS_QUEUE_FULL;
2518 			pm8001_ccb_task_free_done(pm8001_ha, ccb);
2519 			return;
2520 		}
2521 		break;
2522 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2523 		pm8001_dbg(pm8001_ha, IO,
2524 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2525 		ts->resp = SAS_TASK_COMPLETE;
2526 		ts->stat = SAS_OPEN_REJECT;
2527 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2528 		if (pm8001_dev)
2529 			atomic_dec(&pm8001_dev->running_req);
2530 		break;
2531 	case IO_XFER_ERROR_NAK_RECEIVED:
2532 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
2533 		ts->resp = SAS_TASK_COMPLETE;
2534 		ts->stat = SAS_NAK_R_ERR;
2535 		if (pm8001_dev)
2536 			atomic_dec(&pm8001_dev->running_req);
2537 		break;
2538 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2539 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
2540 		ts->resp = SAS_TASK_COMPLETE;
2541 		ts->stat = SAS_NAK_R_ERR;
2542 		if (pm8001_dev)
2543 			atomic_dec(&pm8001_dev->running_req);
2544 		break;
2545 	case IO_XFER_ERROR_DMA:
2546 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_DMA\n");
2547 		ts->resp = SAS_TASK_COMPLETE;
2548 		ts->stat = SAS_ABORTED_TASK;
2549 		if (pm8001_dev)
2550 			atomic_dec(&pm8001_dev->running_req);
2551 		break;
2552 	case IO_XFER_ERROR_SATA_LINK_TIMEOUT:
2553 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_SATA_LINK_TIMEOUT\n");
2554 		ts->resp = SAS_TASK_UNDELIVERED;
2555 		ts->stat = SAS_DEV_NO_RESPONSE;
2556 		if (pm8001_dev)
2557 			atomic_dec(&pm8001_dev->running_req);
2558 		break;
2559 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2560 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_REJECTED_NCQ_MODE\n");
2561 		ts->resp = SAS_TASK_COMPLETE;
2562 		ts->stat = SAS_DATA_UNDERRUN;
2563 		if (pm8001_dev)
2564 			atomic_dec(&pm8001_dev->running_req);
2565 		break;
2566 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2567 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2568 		ts->resp = SAS_TASK_COMPLETE;
2569 		ts->stat = SAS_OPEN_TO;
2570 		if (pm8001_dev)
2571 			atomic_dec(&pm8001_dev->running_req);
2572 		break;
2573 	case IO_PORT_IN_RESET:
2574 		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
2575 		ts->resp = SAS_TASK_COMPLETE;
2576 		ts->stat = SAS_DEV_NO_RESPONSE;
2577 		if (pm8001_dev)
2578 			atomic_dec(&pm8001_dev->running_req);
2579 		break;
2580 	case IO_DS_NON_OPERATIONAL:
2581 		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
2582 		ts->resp = SAS_TASK_COMPLETE;
2583 		ts->stat = SAS_DEV_NO_RESPONSE;
2584 		if (!t->uldd_task) {
2585 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2586 				    IO_DS_NON_OPERATIONAL);
2587 			ts->resp = SAS_TASK_UNDELIVERED;
2588 			ts->stat = SAS_QUEUE_FULL;
2589 			pm8001_ccb_task_free_done(pm8001_ha, ccb);
2590 			return;
2591 		}
2592 		break;
2593 	case IO_DS_IN_RECOVERY:
2594 		pm8001_dbg(pm8001_ha, IO, "  IO_DS_IN_RECOVERY\n");
2595 		ts->resp = SAS_TASK_COMPLETE;
2596 		ts->stat = SAS_DEV_NO_RESPONSE;
2597 		if (pm8001_dev)
2598 			atomic_dec(&pm8001_dev->running_req);
2599 		break;
2600 	case IO_DS_IN_ERROR:
2601 		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_ERROR\n");
2602 		ts->resp = SAS_TASK_COMPLETE;
2603 		ts->stat = SAS_DEV_NO_RESPONSE;
2604 		if (!t->uldd_task) {
2605 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2606 				    IO_DS_IN_ERROR);
2607 			ts->resp = SAS_TASK_UNDELIVERED;
2608 			ts->stat = SAS_QUEUE_FULL;
2609 			pm8001_ccb_task_free_done(pm8001_ha, ccb);
2610 			return;
2611 		}
2612 		break;
2613 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2614 		pm8001_dbg(pm8001_ha, IO,
2615 			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
2616 		ts->resp = SAS_TASK_COMPLETE;
2617 		ts->stat = SAS_OPEN_REJECT;
2618 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2619 		if (pm8001_dev)
2620 			atomic_dec(&pm8001_dev->running_req);
2621 		break;
2622 	default:
2623 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
2624 		/* not allowed case. Therefore, return failed status */
2625 		ts->resp = SAS_TASK_COMPLETE;
2626 		ts->stat = SAS_DEV_NO_RESPONSE;
2627 		if (pm8001_dev)
2628 			atomic_dec(&pm8001_dev->running_req);
2629 		break;
2630 	}
2631 	spin_lock_irqsave(&t->task_state_lock, flags);
2632 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2633 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2634 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2635 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2636 		pm8001_dbg(pm8001_ha, FAIL,
2637 			   "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
2638 			   t, status, ts->resp, ts->stat);
2639 		pm8001_ccb_task_free(pm8001_ha, ccb);
2640 	} else {
2641 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2642 		pm8001_ccb_task_free_done(pm8001_ha, ccb);
2643 	}
2644 }
2645 
2646 /*See the comments for mpi_ssp_completion */
2647 static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
2648 {
2649 	struct sas_task *t;
2650 	struct task_status_struct *ts;
2651 	struct pm8001_ccb_info *ccb;
2652 	struct pm8001_device *pm8001_dev;
2653 	struct sata_event_resp *psataPayload =
2654 		(struct sata_event_resp *)(piomb + 4);
2655 	u32 event = le32_to_cpu(psataPayload->event);
2656 	u32 tag = le32_to_cpu(psataPayload->tag);
2657 	u32 port_id = le32_to_cpu(psataPayload->port_id);
2658 	u32 dev_id = le32_to_cpu(psataPayload->device_id);
2659 
2660 	if (event)
2661 		pm8001_dbg(pm8001_ha, FAIL, "SATA EVENT 0x%x\n", event);
2662 
2663 	/* Check if this is NCQ error */
2664 	if (event == IO_XFER_ERROR_ABORTED_NCQ_MODE) {
2665 		/* find device using device id */
2666 		pm8001_dev = pm8001_find_dev(pm8001_ha, dev_id);
2667 		/* send read log extension */
2668 		if (pm8001_dev)
2669 			pm8001_send_read_log(pm8001_ha, pm8001_dev);
2670 		return;
2671 	}
2672 
2673 	ccb = &pm8001_ha->ccb_info[tag];
2674 	t = ccb->task;
2675 	pm8001_dev = ccb->device;
2676 	if (event)
2677 		pm8001_dbg(pm8001_ha, FAIL, "sata IO status 0x%x\n", event);
2678 	if (unlikely(!t || !t->lldd_task || !t->dev))
2679 		return;
2680 	ts = &t->task_status;
2681 	pm8001_dbg(pm8001_ha, DEVIO,
2682 		   "port_id:0x%x, device_id:0x%x, tag:0x%x, event:0x%x\n",
2683 		   port_id, dev_id, tag, event);
2684 	switch (event) {
2685 	case IO_OVERFLOW:
2686 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
2687 		ts->resp = SAS_TASK_COMPLETE;
2688 		ts->stat = SAS_DATA_OVERRUN;
2689 		ts->residual = 0;
2690 		break;
2691 	case IO_XFER_ERROR_BREAK:
2692 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2693 		ts->resp = SAS_TASK_COMPLETE;
2694 		ts->stat = SAS_INTERRUPTED;
2695 		break;
2696 	case IO_XFER_ERROR_PHY_NOT_READY:
2697 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
2698 		ts->resp = SAS_TASK_COMPLETE;
2699 		ts->stat = SAS_OPEN_REJECT;
2700 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2701 		break;
2702 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2703 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2704 		ts->resp = SAS_TASK_COMPLETE;
2705 		ts->stat = SAS_OPEN_REJECT;
2706 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2707 		break;
2708 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2709 		pm8001_dbg(pm8001_ha, IO,
2710 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2711 		ts->resp = SAS_TASK_COMPLETE;
2712 		ts->stat = SAS_OPEN_REJECT;
2713 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2714 		break;
2715 	case IO_OPEN_CNX_ERROR_BREAK:
2716 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2717 		ts->resp = SAS_TASK_COMPLETE;
2718 		ts->stat = SAS_OPEN_REJECT;
2719 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2720 		break;
2721 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2722 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2723 		ts->resp = SAS_TASK_UNDELIVERED;
2724 		ts->stat = SAS_DEV_NO_RESPONSE;
2725 		if (!t->uldd_task) {
2726 			pm8001_handle_event(pm8001_ha,
2727 				pm8001_dev,
2728 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2729 			ts->resp = SAS_TASK_COMPLETE;
2730 			ts->stat = SAS_QUEUE_FULL;
2731 			return;
2732 		}
2733 		break;
2734 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2735 		pm8001_dbg(pm8001_ha, IO,
2736 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2737 		ts->resp = SAS_TASK_UNDELIVERED;
2738 		ts->stat = SAS_OPEN_REJECT;
2739 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2740 		break;
2741 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2742 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2743 		ts->resp = SAS_TASK_COMPLETE;
2744 		ts->stat = SAS_OPEN_REJECT;
2745 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2746 		break;
2747 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2748 		pm8001_dbg(pm8001_ha, IO,
2749 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2750 		ts->resp = SAS_TASK_COMPLETE;
2751 		ts->stat = SAS_OPEN_REJECT;
2752 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2753 		break;
2754 	case IO_XFER_ERROR_NAK_RECEIVED:
2755 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
2756 		ts->resp = SAS_TASK_COMPLETE;
2757 		ts->stat = SAS_NAK_R_ERR;
2758 		break;
2759 	case IO_XFER_ERROR_PEER_ABORTED:
2760 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PEER_ABORTED\n");
2761 		ts->resp = SAS_TASK_COMPLETE;
2762 		ts->stat = SAS_NAK_R_ERR;
2763 		break;
2764 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2765 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_REJECTED_NCQ_MODE\n");
2766 		ts->resp = SAS_TASK_COMPLETE;
2767 		ts->stat = SAS_DATA_UNDERRUN;
2768 		break;
2769 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2770 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2771 		ts->resp = SAS_TASK_COMPLETE;
2772 		ts->stat = SAS_OPEN_TO;
2773 		break;
2774 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2775 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_UNEXPECTED_PHASE\n");
2776 		ts->resp = SAS_TASK_COMPLETE;
2777 		ts->stat = SAS_OPEN_TO;
2778 		break;
2779 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2780 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_XFER_RDY_OVERRUN\n");
2781 		ts->resp = SAS_TASK_COMPLETE;
2782 		ts->stat = SAS_OPEN_TO;
2783 		break;
2784 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2785 		pm8001_dbg(pm8001_ha, IO,
2786 			   "IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n");
2787 		ts->resp = SAS_TASK_COMPLETE;
2788 		ts->stat = SAS_OPEN_TO;
2789 		break;
2790 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2791 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
2792 		ts->resp = SAS_TASK_COMPLETE;
2793 		ts->stat = SAS_OPEN_TO;
2794 		break;
2795 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2796 		pm8001_dbg(pm8001_ha, IO,
2797 			   "IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n");
2798 		ts->resp = SAS_TASK_COMPLETE;
2799 		ts->stat = SAS_OPEN_TO;
2800 		break;
2801 	case IO_XFER_CMD_FRAME_ISSUED:
2802 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_CMD_FRAME_ISSUED\n");
2803 		break;
2804 	case IO_XFER_PIO_SETUP_ERROR:
2805 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_PIO_SETUP_ERROR\n");
2806 		ts->resp = SAS_TASK_COMPLETE;
2807 		ts->stat = SAS_OPEN_TO;
2808 		break;
2809 	default:
2810 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", event);
2811 		/* not allowed case. Therefore, return failed status */
2812 		ts->resp = SAS_TASK_COMPLETE;
2813 		ts->stat = SAS_OPEN_TO;
2814 		break;
2815 	}
2816 }
2817 
2818 /*See the comments for mpi_ssp_completion */
2819 static void
2820 mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2821 {
2822 	struct sas_task *t;
2823 	struct pm8001_ccb_info *ccb;
2824 	unsigned long flags;
2825 	u32 status;
2826 	u32 tag;
2827 	struct smp_completion_resp *psmpPayload;
2828 	struct task_status_struct *ts;
2829 	struct pm8001_device *pm8001_dev;
2830 
2831 	psmpPayload = (struct smp_completion_resp *)(piomb + 4);
2832 	status = le32_to_cpu(psmpPayload->status);
2833 	tag = le32_to_cpu(psmpPayload->tag);
2834 
2835 	ccb = &pm8001_ha->ccb_info[tag];
2836 	t = ccb->task;
2837 	ts = &t->task_status;
2838 	pm8001_dev = ccb->device;
2839 	if (status) {
2840 		pm8001_dbg(pm8001_ha, FAIL, "smp IO status 0x%x\n", status);
2841 		pm8001_dbg(pm8001_ha, IOERR,
2842 			   "status:0x%x, tag:0x%x, task:0x%p\n",
2843 			   status, tag, t);
2844 	}
2845 	if (unlikely(!t || !t->lldd_task || !t->dev))
2846 		return;
2847 
2848 	switch (status) {
2849 	case IO_SUCCESS:
2850 		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
2851 		ts->resp = SAS_TASK_COMPLETE;
2852 		ts->stat = SAS_SAM_STAT_GOOD;
2853 		if (pm8001_dev)
2854 			atomic_dec(&pm8001_dev->running_req);
2855 		break;
2856 	case IO_ABORTED:
2857 		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB\n");
2858 		ts->resp = SAS_TASK_COMPLETE;
2859 		ts->stat = SAS_ABORTED_TASK;
2860 		if (pm8001_dev)
2861 			atomic_dec(&pm8001_dev->running_req);
2862 		break;
2863 	case IO_OVERFLOW:
2864 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
2865 		ts->resp = SAS_TASK_COMPLETE;
2866 		ts->stat = SAS_DATA_OVERRUN;
2867 		ts->residual = 0;
2868 		if (pm8001_dev)
2869 			atomic_dec(&pm8001_dev->running_req);
2870 		break;
2871 	case IO_NO_DEVICE:
2872 		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
2873 		ts->resp = SAS_TASK_COMPLETE;
2874 		ts->stat = SAS_PHY_DOWN;
2875 		break;
2876 	case IO_ERROR_HW_TIMEOUT:
2877 		pm8001_dbg(pm8001_ha, IO, "IO_ERROR_HW_TIMEOUT\n");
2878 		ts->resp = SAS_TASK_COMPLETE;
2879 		ts->stat = SAS_SAM_STAT_BUSY;
2880 		break;
2881 	case IO_XFER_ERROR_BREAK:
2882 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2883 		ts->resp = SAS_TASK_COMPLETE;
2884 		ts->stat = SAS_SAM_STAT_BUSY;
2885 		break;
2886 	case IO_XFER_ERROR_PHY_NOT_READY:
2887 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
2888 		ts->resp = SAS_TASK_COMPLETE;
2889 		ts->stat = SAS_SAM_STAT_BUSY;
2890 		break;
2891 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2892 		pm8001_dbg(pm8001_ha, IO,
2893 			   "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2894 		ts->resp = SAS_TASK_COMPLETE;
2895 		ts->stat = SAS_OPEN_REJECT;
2896 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2897 		break;
2898 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2899 		pm8001_dbg(pm8001_ha, IO,
2900 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2901 		ts->resp = SAS_TASK_COMPLETE;
2902 		ts->stat = SAS_OPEN_REJECT;
2903 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2904 		break;
2905 	case IO_OPEN_CNX_ERROR_BREAK:
2906 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2907 		ts->resp = SAS_TASK_COMPLETE;
2908 		ts->stat = SAS_OPEN_REJECT;
2909 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2910 		break;
2911 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2912 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2913 		ts->resp = SAS_TASK_COMPLETE;
2914 		ts->stat = SAS_OPEN_REJECT;
2915 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2916 		pm8001_handle_event(pm8001_ha,
2917 				pm8001_dev,
2918 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2919 		break;
2920 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2921 		pm8001_dbg(pm8001_ha, IO,
2922 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2923 		ts->resp = SAS_TASK_COMPLETE;
2924 		ts->stat = SAS_OPEN_REJECT;
2925 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2926 		break;
2927 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2928 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2929 		ts->resp = SAS_TASK_COMPLETE;
2930 		ts->stat = SAS_OPEN_REJECT;
2931 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2932 		break;
2933 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2934 		pm8001_dbg(pm8001_ha, IO,
2935 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2936 		ts->resp = SAS_TASK_COMPLETE;
2937 		ts->stat = SAS_OPEN_REJECT;
2938 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2939 		break;
2940 	case IO_XFER_ERROR_RX_FRAME:
2941 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_RX_FRAME\n");
2942 		ts->resp = SAS_TASK_COMPLETE;
2943 		ts->stat = SAS_DEV_NO_RESPONSE;
2944 		break;
2945 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2946 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2947 		ts->resp = SAS_TASK_COMPLETE;
2948 		ts->stat = SAS_OPEN_REJECT;
2949 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2950 		break;
2951 	case IO_ERROR_INTERNAL_SMP_RESOURCE:
2952 		pm8001_dbg(pm8001_ha, IO, "IO_ERROR_INTERNAL_SMP_RESOURCE\n");
2953 		ts->resp = SAS_TASK_COMPLETE;
2954 		ts->stat = SAS_QUEUE_FULL;
2955 		break;
2956 	case IO_PORT_IN_RESET:
2957 		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
2958 		ts->resp = SAS_TASK_COMPLETE;
2959 		ts->stat = SAS_OPEN_REJECT;
2960 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2961 		break;
2962 	case IO_DS_NON_OPERATIONAL:
2963 		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
2964 		ts->resp = SAS_TASK_COMPLETE;
2965 		ts->stat = SAS_DEV_NO_RESPONSE;
2966 		break;
2967 	case IO_DS_IN_RECOVERY:
2968 		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_RECOVERY\n");
2969 		ts->resp = SAS_TASK_COMPLETE;
2970 		ts->stat = SAS_OPEN_REJECT;
2971 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2972 		break;
2973 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2974 		pm8001_dbg(pm8001_ha, IO,
2975 			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
2976 		ts->resp = SAS_TASK_COMPLETE;
2977 		ts->stat = SAS_OPEN_REJECT;
2978 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2979 		break;
2980 	default:
2981 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
2982 		ts->resp = SAS_TASK_COMPLETE;
2983 		ts->stat = SAS_DEV_NO_RESPONSE;
2984 		/* not allowed case. Therefore, return failed status */
2985 		break;
2986 	}
2987 	spin_lock_irqsave(&t->task_state_lock, flags);
2988 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2989 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2990 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2991 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2992 		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",
2993 			   t, status, ts->resp, ts->stat);
2994 		pm8001_ccb_task_free(pm8001_ha, ccb);
2995 	} else {
2996 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2997 		pm8001_ccb_task_free_done(pm8001_ha, ccb);
2998 	}
2999 }
3000 
3001 void pm8001_mpi_set_dev_state_resp(struct pm8001_hba_info *pm8001_ha,
3002 		void *piomb)
3003 {
3004 	struct set_dev_state_resp *pPayload =
3005 		(struct set_dev_state_resp *)(piomb + 4);
3006 	u32 tag = le32_to_cpu(pPayload->tag);
3007 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3008 	struct pm8001_device *pm8001_dev = ccb->device;
3009 	u32 status = le32_to_cpu(pPayload->status);
3010 	u32 device_id = le32_to_cpu(pPayload->device_id);
3011 	u8 pds = le32_to_cpu(pPayload->pds_nds) & PDS_BITS;
3012 	u8 nds = le32_to_cpu(pPayload->pds_nds) & NDS_BITS;
3013 
3014 	pm8001_dbg(pm8001_ha, MSG,
3015 		   "Set device id = 0x%x state from 0x%x to 0x%x status = 0x%x!\n",
3016 		   device_id, pds, nds, status);
3017 	complete(pm8001_dev->setds_completion);
3018 	pm8001_ccb_free(pm8001_ha, ccb);
3019 }
3020 
3021 void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3022 {
3023 	struct get_nvm_data_resp *pPayload =
3024 		(struct get_nvm_data_resp *)(piomb + 4);
3025 	u32 tag = le32_to_cpu(pPayload->tag);
3026 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3027 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
3028 
3029 	complete(pm8001_ha->nvmd_completion);
3030 	pm8001_dbg(pm8001_ha, MSG, "Set nvm data complete!\n");
3031 	if ((dlen_status & NVMD_STAT) != 0) {
3032 		pm8001_dbg(pm8001_ha, FAIL, "Set nvm data error %x\n",
3033 				dlen_status);
3034 	}
3035 	pm8001_ccb_free(pm8001_ha, ccb);
3036 }
3037 
3038 void
3039 pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3040 {
3041 	struct fw_control_ex    *fw_control_context;
3042 	struct get_nvm_data_resp *pPayload =
3043 		(struct get_nvm_data_resp *)(piomb + 4);
3044 	u32 tag = le32_to_cpu(pPayload->tag);
3045 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3046 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
3047 	u32 ir_tds_bn_dps_das_nvm =
3048 		le32_to_cpu(pPayload->ir_tda_bn_dps_das_nvm);
3049 	void *virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr;
3050 	fw_control_context = ccb->fw_control_context;
3051 
3052 	pm8001_dbg(pm8001_ha, MSG, "Get nvm data complete!\n");
3053 	if ((dlen_status & NVMD_STAT) != 0) {
3054 		pm8001_dbg(pm8001_ha, FAIL, "Get nvm data error %x\n",
3055 				dlen_status);
3056 		complete(pm8001_ha->nvmd_completion);
3057 		/* We should free tag during failure also, the tag is not being
3058 		 * freed by requesting path anywhere.
3059 		 */
3060 		pm8001_ccb_free(pm8001_ha, ccb);
3061 		return;
3062 	}
3063 	if (ir_tds_bn_dps_das_nvm & IPMode) {
3064 		/* indirect mode - IR bit set */
3065 		pm8001_dbg(pm8001_ha, MSG, "Get NVMD success, IR=1\n");
3066 		if ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == TWI_DEVICE) {
3067 			if (ir_tds_bn_dps_das_nvm == 0x80a80200) {
3068 				memcpy(pm8001_ha->sas_addr,
3069 				      ((u8 *)virt_addr + 4),
3070 				       SAS_ADDR_SIZE);
3071 				pm8001_dbg(pm8001_ha, MSG, "Get SAS address from VPD successfully!\n");
3072 			}
3073 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == C_SEEPROM)
3074 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == VPD_FLASH) ||
3075 			((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == EXPAN_ROM)) {
3076 				;
3077 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == AAP1_RDUMP)
3078 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == IOP_RDUMP)) {
3079 			;
3080 		} else {
3081 			/* Should not be happened*/
3082 			pm8001_dbg(pm8001_ha, MSG,
3083 				   "(IR=1)Wrong Device type 0x%x\n",
3084 				   ir_tds_bn_dps_das_nvm);
3085 		}
3086 	} else /* direct mode */{
3087 		pm8001_dbg(pm8001_ha, MSG,
3088 			   "Get NVMD success, IR=0, dataLen=%d\n",
3089 			   (dlen_status & NVMD_LEN) >> 24);
3090 	}
3091 	/* Though fw_control_context is freed below, usrAddr still needs
3092 	 * to be updated as this holds the response to the request function
3093 	 */
3094 	memcpy(fw_control_context->usrAddr,
3095 		pm8001_ha->memoryMap.region[NVMD].virt_ptr,
3096 		fw_control_context->len);
3097 	kfree(ccb->fw_control_context);
3098 	/* To avoid race condition, complete should be
3099 	 * called after the message is copied to
3100 	 * fw_control_context->usrAddr
3101 	 */
3102 	complete(pm8001_ha->nvmd_completion);
3103 	pm8001_dbg(pm8001_ha, MSG, "Get nvmd data complete!\n");
3104 	pm8001_ccb_free(pm8001_ha, ccb);
3105 }
3106 
3107 int pm8001_mpi_local_phy_ctl(struct pm8001_hba_info *pm8001_ha, void *piomb)
3108 {
3109 	u32 tag;
3110 	struct local_phy_ctl_resp *pPayload =
3111 		(struct local_phy_ctl_resp *)(piomb + 4);
3112 	u32 status = le32_to_cpu(pPayload->status);
3113 	u32 phy_id = le32_to_cpu(pPayload->phyop_phyid) & ID_BITS;
3114 	u32 phy_op = le32_to_cpu(pPayload->phyop_phyid) & OP_BITS;
3115 	tag = le32_to_cpu(pPayload->tag);
3116 	if (status != 0) {
3117 		pm8001_dbg(pm8001_ha, MSG,
3118 			   "%x phy execute %x phy op failed!\n",
3119 			   phy_id, phy_op);
3120 	} else {
3121 		pm8001_dbg(pm8001_ha, MSG,
3122 			   "%x phy execute %x phy op success!\n",
3123 			   phy_id, phy_op);
3124 		pm8001_ha->phy[phy_id].reset_success = true;
3125 	}
3126 	if (pm8001_ha->phy[phy_id].enable_completion) {
3127 		complete(pm8001_ha->phy[phy_id].enable_completion);
3128 		pm8001_ha->phy[phy_id].enable_completion = NULL;
3129 	}
3130 	pm8001_tag_free(pm8001_ha, tag);
3131 	return 0;
3132 }
3133 
3134 /**
3135  * pm8001_bytes_dmaed - one of the interface function communication with libsas
3136  * @pm8001_ha: our hba card information
3137  * @i: which phy that received the event.
3138  *
3139  * when HBA driver received the identify done event or initiate FIS received
3140  * event(for SATA), it will invoke this function to notify the sas layer that
3141  * the sas toplogy has formed, please discover the whole sas domain,
3142  * while receive a broadcast(change) primitive just tell the sas
3143  * layer to discover the changed domain rather than the whole domain.
3144  */
3145 void pm8001_bytes_dmaed(struct pm8001_hba_info *pm8001_ha, int i)
3146 {
3147 	struct pm8001_phy *phy = &pm8001_ha->phy[i];
3148 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
3149 	if (!phy->phy_attached)
3150 		return;
3151 
3152 	if (phy->phy_type & PORT_TYPE_SAS) {
3153 		struct sas_identify_frame *id;
3154 		id = (struct sas_identify_frame *)phy->frame_rcvd;
3155 		id->dev_type = phy->identify.device_type;
3156 		id->initiator_bits = SAS_PROTOCOL_ALL;
3157 		id->target_bits = phy->identify.target_port_protocols;
3158 	} else if (phy->phy_type & PORT_TYPE_SATA) {
3159 		/*Nothing*/
3160 	}
3161 	pm8001_dbg(pm8001_ha, MSG, "phy %d byte dmaded.\n", i);
3162 
3163 	sas_phy->frame_rcvd_size = phy->frame_rcvd_size;
3164 	sas_notify_port_event(sas_phy, PORTE_BYTES_DMAED, GFP_ATOMIC);
3165 }
3166 
3167 /* Get the link rate speed  */
3168 void pm8001_get_lrate_mode(struct pm8001_phy *phy, u8 link_rate)
3169 {
3170 	struct sas_phy *sas_phy = phy->sas_phy.phy;
3171 
3172 	switch (link_rate) {
3173 	case PHY_SPEED_120:
3174 		phy->sas_phy.linkrate = SAS_LINK_RATE_12_0_GBPS;
3175 		break;
3176 	case PHY_SPEED_60:
3177 		phy->sas_phy.linkrate = SAS_LINK_RATE_6_0_GBPS;
3178 		break;
3179 	case PHY_SPEED_30:
3180 		phy->sas_phy.linkrate = SAS_LINK_RATE_3_0_GBPS;
3181 		break;
3182 	case PHY_SPEED_15:
3183 		phy->sas_phy.linkrate = SAS_LINK_RATE_1_5_GBPS;
3184 		break;
3185 	}
3186 	sas_phy->negotiated_linkrate = phy->sas_phy.linkrate;
3187 	sas_phy->maximum_linkrate_hw = phy->maximum_linkrate;
3188 	sas_phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
3189 	sas_phy->maximum_linkrate = phy->maximum_linkrate;
3190 	sas_phy->minimum_linkrate = phy->minimum_linkrate;
3191 }
3192 
3193 /**
3194  * pm8001_get_attached_sas_addr - extract/generate attached SAS address
3195  * @phy: pointer to asd_phy
3196  * @sas_addr: pointer to buffer where the SAS address is to be written
3197  *
3198  * This function extracts the SAS address from an IDENTIFY frame
3199  * received.  If OOB is SATA, then a SAS address is generated from the
3200  * HA tables.
3201  *
3202  * LOCKING: the frame_rcvd_lock needs to be held since this parses the frame
3203  * buffer.
3204  */
3205 void pm8001_get_attached_sas_addr(struct pm8001_phy *phy,
3206 	u8 *sas_addr)
3207 {
3208 	if (phy->sas_phy.frame_rcvd[0] == 0x34
3209 		&& phy->sas_phy.oob_mode == SATA_OOB_MODE) {
3210 		struct pm8001_hba_info *pm8001_ha = phy->sas_phy.ha->lldd_ha;
3211 		/* FIS device-to-host */
3212 		u64 addr = be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr);
3213 		addr += phy->sas_phy.id;
3214 		*(__be64 *)sas_addr = cpu_to_be64(addr);
3215 	} else {
3216 		struct sas_identify_frame *idframe =
3217 			(void *) phy->sas_phy.frame_rcvd;
3218 		memcpy(sas_addr, idframe->sas_addr, SAS_ADDR_SIZE);
3219 	}
3220 }
3221 
3222 /**
3223  * pm8001_hw_event_ack_req- For PM8001,some events need to acknowage to FW.
3224  * @pm8001_ha: our hba card information
3225  * @Qnum: the outbound queue message number.
3226  * @SEA: source of event to ack
3227  * @port_id: port id.
3228  * @phyId: phy id.
3229  * @param0: parameter 0.
3230  * @param1: parameter 1.
3231  */
3232 static void pm8001_hw_event_ack_req(struct pm8001_hba_info *pm8001_ha,
3233 	u32 Qnum, u32 SEA, u32 port_id, u32 phyId, u32 param0, u32 param1)
3234 {
3235 	struct hw_event_ack_req	 payload;
3236 	u32 opc = OPC_INB_SAS_HW_EVENT_ACK;
3237 
3238 	memset((u8 *)&payload, 0, sizeof(payload));
3239 	payload.tag = cpu_to_le32(1);
3240 	payload.sea_phyid_portid = cpu_to_le32(((SEA & 0xFFFF) << 8) |
3241 		((phyId & 0x0F) << 4) | (port_id & 0x0F));
3242 	payload.param0 = cpu_to_le32(param0);
3243 	payload.param1 = cpu_to_le32(param1);
3244 
3245 	pm8001_mpi_build_cmd(pm8001_ha, Qnum, opc, &payload, sizeof(payload), 0);
3246 }
3247 
3248 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
3249 	u32 phyId, u32 phy_op);
3250 
3251 /**
3252  * hw_event_sas_phy_up -FW tells me a SAS phy up event.
3253  * @pm8001_ha: our hba card information
3254  * @piomb: IO message buffer
3255  */
3256 static void
3257 hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3258 {
3259 	struct hw_event_resp *pPayload =
3260 		(struct hw_event_resp *)(piomb + 4);
3261 	u32 lr_evt_status_phyid_portid =
3262 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3263 	u8 link_rate =
3264 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3265 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3266 	u8 phy_id =
3267 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3268 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3269 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3270 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3271 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3272 	unsigned long flags;
3273 	u8 deviceType = pPayload->sas_identify.dev_type;
3274 	phy->port = port;
3275 	port->port_id = port_id;
3276 	port->port_state =  portstate;
3277 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3278 	pm8001_dbg(pm8001_ha, MSG,
3279 		   "HW_EVENT_SAS_PHY_UP port id = %d, phy id = %d\n",
3280 		   port_id, phy_id);
3281 
3282 	switch (deviceType) {
3283 	case SAS_PHY_UNUSED:
3284 		pm8001_dbg(pm8001_ha, MSG, "device type no device.\n");
3285 		break;
3286 	case SAS_END_DEVICE:
3287 		pm8001_dbg(pm8001_ha, MSG, "end device.\n");
3288 		pm8001_chip_phy_ctl_req(pm8001_ha, phy_id,
3289 			PHY_NOTIFY_ENABLE_SPINUP);
3290 		port->port_attached = 1;
3291 		pm8001_get_lrate_mode(phy, link_rate);
3292 		break;
3293 	case SAS_EDGE_EXPANDER_DEVICE:
3294 		pm8001_dbg(pm8001_ha, MSG, "expander device.\n");
3295 		port->port_attached = 1;
3296 		pm8001_get_lrate_mode(phy, link_rate);
3297 		break;
3298 	case SAS_FANOUT_EXPANDER_DEVICE:
3299 		pm8001_dbg(pm8001_ha, MSG, "fanout expander device.\n");
3300 		port->port_attached = 1;
3301 		pm8001_get_lrate_mode(phy, link_rate);
3302 		break;
3303 	default:
3304 		pm8001_dbg(pm8001_ha, DEVIO, "unknown device type(%x)\n",
3305 			   deviceType);
3306 		break;
3307 	}
3308 	phy->phy_type |= PORT_TYPE_SAS;
3309 	phy->identify.device_type = deviceType;
3310 	phy->phy_attached = 1;
3311 	if (phy->identify.device_type == SAS_END_DEVICE)
3312 		phy->identify.target_port_protocols = SAS_PROTOCOL_SSP;
3313 	else if (phy->identify.device_type != SAS_PHY_UNUSED)
3314 		phy->identify.target_port_protocols = SAS_PROTOCOL_SMP;
3315 	phy->sas_phy.oob_mode = SAS_OOB_MODE;
3316 	sas_notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE, GFP_ATOMIC);
3317 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3318 	memcpy(phy->frame_rcvd, &pPayload->sas_identify,
3319 		sizeof(struct sas_identify_frame)-4);
3320 	phy->frame_rcvd_size = sizeof(struct sas_identify_frame) - 4;
3321 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3322 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3323 	if (pm8001_ha->flags == PM8001F_RUN_TIME)
3324 		mdelay(200);/*delay a moment to wait disk to spinup*/
3325 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3326 }
3327 
3328 /**
3329  * hw_event_sata_phy_up -FW tells me a SATA phy up event.
3330  * @pm8001_ha: our hba card information
3331  * @piomb: IO message buffer
3332  */
3333 static void
3334 hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3335 {
3336 	struct hw_event_resp *pPayload =
3337 		(struct hw_event_resp *)(piomb + 4);
3338 	u32 lr_evt_status_phyid_portid =
3339 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3340 	u8 link_rate =
3341 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3342 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3343 	u8 phy_id =
3344 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3345 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3346 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3347 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3348 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3349 	unsigned long flags;
3350 	pm8001_dbg(pm8001_ha, DEVIO, "HW_EVENT_SATA_PHY_UP port id = %d, phy id = %d\n",
3351 		   port_id, phy_id);
3352 	phy->port = port;
3353 	port->port_id = port_id;
3354 	port->port_state =  portstate;
3355 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3356 	port->port_attached = 1;
3357 	pm8001_get_lrate_mode(phy, link_rate);
3358 	phy->phy_type |= PORT_TYPE_SATA;
3359 	phy->phy_attached = 1;
3360 	phy->sas_phy.oob_mode = SATA_OOB_MODE;
3361 	sas_notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE, GFP_ATOMIC);
3362 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3363 	memcpy(phy->frame_rcvd, ((u8 *)&pPayload->sata_fis - 4),
3364 		sizeof(struct dev_to_host_fis));
3365 	phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
3366 	phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
3367 	phy->identify.device_type = SAS_SATA_DEV;
3368 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3369 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3370 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3371 }
3372 
3373 /**
3374  * hw_event_phy_down -we should notify the libsas the phy is down.
3375  * @pm8001_ha: our hba card information
3376  * @piomb: IO message buffer
3377  */
3378 static void
3379 hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb)
3380 {
3381 	struct hw_event_resp *pPayload =
3382 		(struct hw_event_resp *)(piomb + 4);
3383 	u32 lr_evt_status_phyid_portid =
3384 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3385 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3386 	u8 phy_id =
3387 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3388 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3389 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3390 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3391 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3392 	port->port_state =  portstate;
3393 	phy->phy_type = 0;
3394 	phy->identify.device_type = 0;
3395 	phy->phy_attached = 0;
3396 	memset(&phy->dev_sas_addr, 0, SAS_ADDR_SIZE);
3397 	switch (portstate) {
3398 	case PORT_VALID:
3399 		break;
3400 	case PORT_INVALID:
3401 		pm8001_dbg(pm8001_ha, MSG, " PortInvalid portID %d\n",
3402 			   port_id);
3403 		pm8001_dbg(pm8001_ha, MSG,
3404 			   " Last phy Down and port invalid\n");
3405 		port->port_attached = 0;
3406 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3407 			port_id, phy_id, 0, 0);
3408 		break;
3409 	case PORT_IN_RESET:
3410 		pm8001_dbg(pm8001_ha, MSG, " Port In Reset portID %d\n",
3411 			   port_id);
3412 		break;
3413 	case PORT_NOT_ESTABLISHED:
3414 		pm8001_dbg(pm8001_ha, MSG,
3415 			   " phy Down and PORT_NOT_ESTABLISHED\n");
3416 		port->port_attached = 0;
3417 		break;
3418 	case PORT_LOSTCOMM:
3419 		pm8001_dbg(pm8001_ha, MSG, " phy Down and PORT_LOSTCOMM\n");
3420 		pm8001_dbg(pm8001_ha, MSG,
3421 			   " Last phy Down and port invalid\n");
3422 		port->port_attached = 0;
3423 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3424 			port_id, phy_id, 0, 0);
3425 		break;
3426 	default:
3427 		port->port_attached = 0;
3428 		pm8001_dbg(pm8001_ha, DEVIO, " phy Down and(default) = %x\n",
3429 			   portstate);
3430 		break;
3431 
3432 	}
3433 }
3434 
3435 /**
3436  * pm8001_mpi_reg_resp -process register device ID response.
3437  * @pm8001_ha: our hba card information
3438  * @piomb: IO message buffer
3439  *
3440  * when sas layer find a device it will notify LLDD, then the driver register
3441  * the domain device to FW, this event is the return device ID which the FW
3442  * has assigned, from now, inter-communication with FW is no longer using the
3443  * SAS address, use device ID which FW assigned.
3444  */
3445 int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3446 {
3447 	u32 status;
3448 	u32 device_id;
3449 	u32 htag;
3450 	struct pm8001_ccb_info *ccb;
3451 	struct pm8001_device *pm8001_dev;
3452 	struct dev_reg_resp *registerRespPayload =
3453 		(struct dev_reg_resp *)(piomb + 4);
3454 
3455 	htag = le32_to_cpu(registerRespPayload->tag);
3456 	ccb = &pm8001_ha->ccb_info[htag];
3457 	pm8001_dev = ccb->device;
3458 	status = le32_to_cpu(registerRespPayload->status);
3459 	device_id = le32_to_cpu(registerRespPayload->device_id);
3460 	pm8001_dbg(pm8001_ha, MSG, " register device is status = %d\n",
3461 		   status);
3462 	switch (status) {
3463 	case DEVREG_SUCCESS:
3464 		pm8001_dbg(pm8001_ha, MSG, "DEVREG_SUCCESS\n");
3465 		pm8001_dev->device_id = device_id;
3466 		break;
3467 	case DEVREG_FAILURE_OUT_OF_RESOURCE:
3468 		pm8001_dbg(pm8001_ha, MSG, "DEVREG_FAILURE_OUT_OF_RESOURCE\n");
3469 		break;
3470 	case DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED:
3471 		pm8001_dbg(pm8001_ha, MSG,
3472 			   "DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED\n");
3473 		break;
3474 	case DEVREG_FAILURE_INVALID_PHY_ID:
3475 		pm8001_dbg(pm8001_ha, MSG, "DEVREG_FAILURE_INVALID_PHY_ID\n");
3476 		break;
3477 	case DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED:
3478 		pm8001_dbg(pm8001_ha, MSG,
3479 			   "DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED\n");
3480 		break;
3481 	case DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE:
3482 		pm8001_dbg(pm8001_ha, MSG,
3483 			   "DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE\n");
3484 		break;
3485 	case DEVREG_FAILURE_PORT_NOT_VALID_STATE:
3486 		pm8001_dbg(pm8001_ha, MSG,
3487 			   "DEVREG_FAILURE_PORT_NOT_VALID_STATE\n");
3488 		break;
3489 	case DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID:
3490 		pm8001_dbg(pm8001_ha, MSG,
3491 			   "DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID\n");
3492 		break;
3493 	default:
3494 		pm8001_dbg(pm8001_ha, MSG,
3495 			   "DEVREG_FAILURE_DEVICE_TYPE_NOT_SUPPORTED\n");
3496 		break;
3497 	}
3498 	complete(pm8001_dev->dcompletion);
3499 	pm8001_ccb_free(pm8001_ha, ccb);
3500 	return 0;
3501 }
3502 
3503 int pm8001_mpi_dereg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3504 {
3505 	u32 status;
3506 	u32 device_id;
3507 	struct dev_reg_resp *registerRespPayload =
3508 		(struct dev_reg_resp *)(piomb + 4);
3509 
3510 	status = le32_to_cpu(registerRespPayload->status);
3511 	device_id = le32_to_cpu(registerRespPayload->device_id);
3512 	if (status != 0)
3513 		pm8001_dbg(pm8001_ha, MSG,
3514 			   " deregister device failed ,status = %x, device_id = %x\n",
3515 			   status, device_id);
3516 	return 0;
3517 }
3518 
3519 /**
3520  * pm8001_mpi_fw_flash_update_resp - Response from FW for flash update command.
3521  * @pm8001_ha: our hba card information
3522  * @piomb: IO message buffer
3523  */
3524 int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
3525 		void *piomb)
3526 {
3527 	u32 status;
3528 	struct fw_flash_Update_resp *ppayload =
3529 		(struct fw_flash_Update_resp *)(piomb + 4);
3530 	u32 tag = le32_to_cpu(ppayload->tag);
3531 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3532 
3533 	status = le32_to_cpu(ppayload->status);
3534 	switch (status) {
3535 	case FLASH_UPDATE_COMPLETE_PENDING_REBOOT:
3536 		pm8001_dbg(pm8001_ha, MSG,
3537 			   ": FLASH_UPDATE_COMPLETE_PENDING_REBOOT\n");
3538 		break;
3539 	case FLASH_UPDATE_IN_PROGRESS:
3540 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_IN_PROGRESS\n");
3541 		break;
3542 	case FLASH_UPDATE_HDR_ERR:
3543 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_HDR_ERR\n");
3544 		break;
3545 	case FLASH_UPDATE_OFFSET_ERR:
3546 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_OFFSET_ERR\n");
3547 		break;
3548 	case FLASH_UPDATE_CRC_ERR:
3549 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_CRC_ERR\n");
3550 		break;
3551 	case FLASH_UPDATE_LENGTH_ERR:
3552 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_LENGTH_ERR\n");
3553 		break;
3554 	case FLASH_UPDATE_HW_ERR:
3555 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_HW_ERR\n");
3556 		break;
3557 	case FLASH_UPDATE_DNLD_NOT_SUPPORTED:
3558 		pm8001_dbg(pm8001_ha, MSG,
3559 			   ": FLASH_UPDATE_DNLD_NOT_SUPPORTED\n");
3560 		break;
3561 	case FLASH_UPDATE_DISABLED:
3562 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_DISABLED\n");
3563 		break;
3564 	default:
3565 		pm8001_dbg(pm8001_ha, DEVIO, "No matched status = %d\n",
3566 			   status);
3567 		break;
3568 	}
3569 	kfree(ccb->fw_control_context);
3570 	pm8001_ccb_free(pm8001_ha, ccb);
3571 	complete(pm8001_ha->nvmd_completion);
3572 	return 0;
3573 }
3574 
3575 int pm8001_mpi_general_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
3576 {
3577 	u32 status;
3578 	int i;
3579 	struct general_event_resp *pPayload =
3580 		(struct general_event_resp *)(piomb + 4);
3581 	status = le32_to_cpu(pPayload->status);
3582 	pm8001_dbg(pm8001_ha, MSG, " status = 0x%x\n", status);
3583 	for (i = 0; i < GENERAL_EVENT_PAYLOAD; i++)
3584 		pm8001_dbg(pm8001_ha, MSG, "inb_IOMB_payload[0x%x] 0x%x,\n",
3585 			   i,
3586 			   pPayload->inb_IOMB_payload[i]);
3587 	return 0;
3588 }
3589 
3590 int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3591 {
3592 	struct sas_task *t;
3593 	struct pm8001_ccb_info *ccb;
3594 	unsigned long flags;
3595 	u32 status ;
3596 	u32 tag, scp;
3597 	struct task_status_struct *ts;
3598 	struct pm8001_device *pm8001_dev;
3599 
3600 	struct task_abort_resp *pPayload =
3601 		(struct task_abort_resp *)(piomb + 4);
3602 
3603 	status = le32_to_cpu(pPayload->status);
3604 	tag = le32_to_cpu(pPayload->tag);
3605 
3606 	scp = le32_to_cpu(pPayload->scp);
3607 	ccb = &pm8001_ha->ccb_info[tag];
3608 	t = ccb->task;
3609 	pm8001_dev = ccb->device; /* retrieve device */
3610 
3611 	if (!t)	{
3612 		pm8001_dbg(pm8001_ha, FAIL, " TASK NULL. RETURNING !!!\n");
3613 		return -1;
3614 	}
3615 
3616 	if (t->task_proto == SAS_PROTOCOL_INTERNAL_ABORT)
3617 		atomic_dec(&pm8001_dev->running_req);
3618 
3619 	ts = &t->task_status;
3620 	if (status != 0)
3621 		pm8001_dbg(pm8001_ha, FAIL, "task abort failed status 0x%x ,tag = 0x%x, scp= 0x%x\n",
3622 			   status, tag, scp);
3623 	switch (status) {
3624 	case IO_SUCCESS:
3625 		pm8001_dbg(pm8001_ha, EH, "IO_SUCCESS\n");
3626 		ts->resp = SAS_TASK_COMPLETE;
3627 		ts->stat = SAS_SAM_STAT_GOOD;
3628 		break;
3629 	case IO_NOT_VALID:
3630 		pm8001_dbg(pm8001_ha, EH, "IO_NOT_VALID\n");
3631 		ts->resp = TMF_RESP_FUNC_FAILED;
3632 		break;
3633 	}
3634 	spin_lock_irqsave(&t->task_state_lock, flags);
3635 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
3636 	t->task_state_flags |= SAS_TASK_STATE_DONE;
3637 	spin_unlock_irqrestore(&t->task_state_lock, flags);
3638 	pm8001_ccb_task_free(pm8001_ha, ccb);
3639 	mb();
3640 
3641 	if (pm8001_dev->id & NCQ_ABORT_ALL_FLAG) {
3642 		sas_free_task(t);
3643 		pm8001_dev->id &= ~NCQ_ABORT_ALL_FLAG;
3644 	} else {
3645 		t->task_done(t);
3646 	}
3647 
3648 	return 0;
3649 }
3650 
3651 /**
3652  * mpi_hw_event -The hw event has come.
3653  * @pm8001_ha: our hba card information
3654  * @piomb: IO message buffer
3655  */
3656 static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
3657 {
3658 	unsigned long flags;
3659 	struct hw_event_resp *pPayload =
3660 		(struct hw_event_resp *)(piomb + 4);
3661 	u32 lr_evt_status_phyid_portid =
3662 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3663 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3664 	u8 phy_id =
3665 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3666 	u16 eventType =
3667 		(u16)((lr_evt_status_phyid_portid & 0x00FFFF00) >> 8);
3668 	u8 status =
3669 		(u8)((lr_evt_status_phyid_portid & 0x0F000000) >> 24);
3670 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3671 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3672 	struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
3673 	pm8001_dbg(pm8001_ha, DEVIO,
3674 		   "SPC HW event for portid:%d, phyid:%d, event:%x, status:%x\n",
3675 		   port_id, phy_id, eventType, status);
3676 	switch (eventType) {
3677 	case HW_EVENT_PHY_START_STATUS:
3678 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_START_STATUS status = %x\n",
3679 			   status);
3680 		if (status == 0)
3681 			phy->phy_state = 1;
3682 
3683 		if (pm8001_ha->flags == PM8001F_RUN_TIME &&
3684 				phy->enable_completion != NULL) {
3685 			complete(phy->enable_completion);
3686 			phy->enable_completion = NULL;
3687 		}
3688 		break;
3689 	case HW_EVENT_SAS_PHY_UP:
3690 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_START_STATUS\n");
3691 		hw_event_sas_phy_up(pm8001_ha, piomb);
3692 		break;
3693 	case HW_EVENT_SATA_PHY_UP:
3694 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_SATA_PHY_UP\n");
3695 		hw_event_sata_phy_up(pm8001_ha, piomb);
3696 		break;
3697 	case HW_EVENT_PHY_STOP_STATUS:
3698 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_STOP_STATUS status = %x\n",
3699 			   status);
3700 		if (status == 0)
3701 			phy->phy_state = 0;
3702 		break;
3703 	case HW_EVENT_SATA_SPINUP_HOLD:
3704 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_SATA_SPINUP_HOLD\n");
3705 		sas_notify_phy_event(&phy->sas_phy, PHYE_SPINUP_HOLD,
3706 			GFP_ATOMIC);
3707 		break;
3708 	case HW_EVENT_PHY_DOWN:
3709 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_DOWN\n");
3710 		sas_notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL,
3711 			GFP_ATOMIC);
3712 		phy->phy_attached = 0;
3713 		phy->phy_state = 0;
3714 		hw_event_phy_down(pm8001_ha, piomb);
3715 		break;
3716 	case HW_EVENT_PORT_INVALID:
3717 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_INVALID\n");
3718 		sas_phy_disconnected(sas_phy);
3719 		phy->phy_attached = 0;
3720 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3721 			GFP_ATOMIC);
3722 		break;
3723 	/* the broadcast change primitive received, tell the LIBSAS this event
3724 	to revalidate the sas domain*/
3725 	case HW_EVENT_BROADCAST_CHANGE:
3726 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_CHANGE\n");
3727 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_BROADCAST_CHANGE,
3728 			port_id, phy_id, 1, 0);
3729 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3730 		sas_phy->sas_prim = HW_EVENT_BROADCAST_CHANGE;
3731 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3732 		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
3733 			GFP_ATOMIC);
3734 		break;
3735 	case HW_EVENT_PHY_ERROR:
3736 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_ERROR\n");
3737 		sas_phy_disconnected(&phy->sas_phy);
3738 		phy->phy_attached = 0;
3739 		sas_notify_phy_event(&phy->sas_phy, PHYE_OOB_ERROR, GFP_ATOMIC);
3740 		break;
3741 	case HW_EVENT_BROADCAST_EXP:
3742 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_EXP\n");
3743 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3744 		sas_phy->sas_prim = HW_EVENT_BROADCAST_EXP;
3745 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3746 		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
3747 			GFP_ATOMIC);
3748 		break;
3749 	case HW_EVENT_LINK_ERR_INVALID_DWORD:
3750 		pm8001_dbg(pm8001_ha, MSG,
3751 			   "HW_EVENT_LINK_ERR_INVALID_DWORD\n");
3752 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3753 			HW_EVENT_LINK_ERR_INVALID_DWORD, port_id, phy_id, 0, 0);
3754 		sas_phy_disconnected(sas_phy);
3755 		phy->phy_attached = 0;
3756 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3757 			GFP_ATOMIC);
3758 		break;
3759 	case HW_EVENT_LINK_ERR_DISPARITY_ERROR:
3760 		pm8001_dbg(pm8001_ha, MSG,
3761 			   "HW_EVENT_LINK_ERR_DISPARITY_ERROR\n");
3762 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3763 			HW_EVENT_LINK_ERR_DISPARITY_ERROR,
3764 			port_id, phy_id, 0, 0);
3765 		sas_phy_disconnected(sas_phy);
3766 		phy->phy_attached = 0;
3767 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3768 			GFP_ATOMIC);
3769 		break;
3770 	case HW_EVENT_LINK_ERR_CODE_VIOLATION:
3771 		pm8001_dbg(pm8001_ha, MSG,
3772 			   "HW_EVENT_LINK_ERR_CODE_VIOLATION\n");
3773 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3774 			HW_EVENT_LINK_ERR_CODE_VIOLATION,
3775 			port_id, phy_id, 0, 0);
3776 		sas_phy_disconnected(sas_phy);
3777 		phy->phy_attached = 0;
3778 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3779 			GFP_ATOMIC);
3780 		break;
3781 	case HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH:
3782 		pm8001_dbg(pm8001_ha, MSG,
3783 			   "HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH\n");
3784 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3785 			HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH,
3786 			port_id, phy_id, 0, 0);
3787 		sas_phy_disconnected(sas_phy);
3788 		phy->phy_attached = 0;
3789 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3790 			GFP_ATOMIC);
3791 		break;
3792 	case HW_EVENT_MALFUNCTION:
3793 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_MALFUNCTION\n");
3794 		break;
3795 	case HW_EVENT_BROADCAST_SES:
3796 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_SES\n");
3797 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3798 		sas_phy->sas_prim = HW_EVENT_BROADCAST_SES;
3799 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3800 		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
3801 			GFP_ATOMIC);
3802 		break;
3803 	case HW_EVENT_INBOUND_CRC_ERROR:
3804 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_INBOUND_CRC_ERROR\n");
3805 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3806 			HW_EVENT_INBOUND_CRC_ERROR,
3807 			port_id, phy_id, 0, 0);
3808 		break;
3809 	case HW_EVENT_HARD_RESET_RECEIVED:
3810 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_HARD_RESET_RECEIVED\n");
3811 		sas_notify_port_event(sas_phy, PORTE_HARD_RESET, GFP_ATOMIC);
3812 		break;
3813 	case HW_EVENT_ID_FRAME_TIMEOUT:
3814 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_ID_FRAME_TIMEOUT\n");
3815 		sas_phy_disconnected(sas_phy);
3816 		phy->phy_attached = 0;
3817 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3818 			GFP_ATOMIC);
3819 		break;
3820 	case HW_EVENT_LINK_ERR_PHY_RESET_FAILED:
3821 		pm8001_dbg(pm8001_ha, MSG,
3822 			   "HW_EVENT_LINK_ERR_PHY_RESET_FAILED\n");
3823 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3824 			HW_EVENT_LINK_ERR_PHY_RESET_FAILED,
3825 			port_id, phy_id, 0, 0);
3826 		sas_phy_disconnected(sas_phy);
3827 		phy->phy_attached = 0;
3828 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3829 			GFP_ATOMIC);
3830 		break;
3831 	case HW_EVENT_PORT_RESET_TIMER_TMO:
3832 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RESET_TIMER_TMO\n");
3833 		sas_phy_disconnected(sas_phy);
3834 		phy->phy_attached = 0;
3835 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3836 			GFP_ATOMIC);
3837 		break;
3838 	case HW_EVENT_PORT_RECOVERY_TIMER_TMO:
3839 		pm8001_dbg(pm8001_ha, MSG,
3840 			   "HW_EVENT_PORT_RECOVERY_TIMER_TMO\n");
3841 		sas_phy_disconnected(sas_phy);
3842 		phy->phy_attached = 0;
3843 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3844 			GFP_ATOMIC);
3845 		break;
3846 	case HW_EVENT_PORT_RECOVER:
3847 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RECOVER\n");
3848 		break;
3849 	case HW_EVENT_PORT_RESET_COMPLETE:
3850 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RESET_COMPLETE\n");
3851 		break;
3852 	case EVENT_BROADCAST_ASYNCH_EVENT:
3853 		pm8001_dbg(pm8001_ha, MSG, "EVENT_BROADCAST_ASYNCH_EVENT\n");
3854 		break;
3855 	default:
3856 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown event type = %x\n",
3857 			   eventType);
3858 		break;
3859 	}
3860 	return 0;
3861 }
3862 
3863 /**
3864  * process_one_iomb - process one outbound Queue memory block
3865  * @pm8001_ha: our hba card information
3866  * @piomb: IO message buffer
3867  */
3868 static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb)
3869 {
3870 	__le32 pHeader = *(__le32 *)piomb;
3871 	u8 opc = (u8)((le32_to_cpu(pHeader)) & 0xFFF);
3872 
3873 	pm8001_dbg(pm8001_ha, MSG, "process_one_iomb:\n");
3874 
3875 	switch (opc) {
3876 	case OPC_OUB_ECHO:
3877 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_ECHO\n");
3878 		break;
3879 	case OPC_OUB_HW_EVENT:
3880 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_HW_EVENT\n");
3881 		mpi_hw_event(pm8001_ha, piomb);
3882 		break;
3883 	case OPC_OUB_SSP_COMP:
3884 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_COMP\n");
3885 		mpi_ssp_completion(pm8001_ha, piomb);
3886 		break;
3887 	case OPC_OUB_SMP_COMP:
3888 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SMP_COMP\n");
3889 		mpi_smp_completion(pm8001_ha, piomb);
3890 		break;
3891 	case OPC_OUB_LOCAL_PHY_CNTRL:
3892 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_LOCAL_PHY_CNTRL\n");
3893 		pm8001_mpi_local_phy_ctl(pm8001_ha, piomb);
3894 		break;
3895 	case OPC_OUB_DEV_REGIST:
3896 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_REGIST\n");
3897 		pm8001_mpi_reg_resp(pm8001_ha, piomb);
3898 		break;
3899 	case OPC_OUB_DEREG_DEV:
3900 		pm8001_dbg(pm8001_ha, MSG, "unregister the device\n");
3901 		pm8001_mpi_dereg_resp(pm8001_ha, piomb);
3902 		break;
3903 	case OPC_OUB_GET_DEV_HANDLE:
3904 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_DEV_HANDLE\n");
3905 		break;
3906 	case OPC_OUB_SATA_COMP:
3907 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_COMP\n");
3908 		mpi_sata_completion(pm8001_ha, piomb);
3909 		break;
3910 	case OPC_OUB_SATA_EVENT:
3911 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_EVENT\n");
3912 		mpi_sata_event(pm8001_ha, piomb);
3913 		break;
3914 	case OPC_OUB_SSP_EVENT:
3915 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_EVENT\n");
3916 		mpi_ssp_event(pm8001_ha, piomb);
3917 		break;
3918 	case OPC_OUB_DEV_HANDLE_ARRIV:
3919 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_HANDLE_ARRIV\n");
3920 		/*This is for target*/
3921 		break;
3922 	case OPC_OUB_SSP_RECV_EVENT:
3923 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_RECV_EVENT\n");
3924 		/*This is for target*/
3925 		break;
3926 	case OPC_OUB_DEV_INFO:
3927 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_INFO\n");
3928 		break;
3929 	case OPC_OUB_FW_FLASH_UPDATE:
3930 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_FW_FLASH_UPDATE\n");
3931 		pm8001_mpi_fw_flash_update_resp(pm8001_ha, piomb);
3932 		break;
3933 	case OPC_OUB_GPIO_RESPONSE:
3934 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GPIO_RESPONSE\n");
3935 		break;
3936 	case OPC_OUB_GPIO_EVENT:
3937 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GPIO_EVENT\n");
3938 		break;
3939 	case OPC_OUB_GENERAL_EVENT:
3940 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GENERAL_EVENT\n");
3941 		pm8001_mpi_general_event(pm8001_ha, piomb);
3942 		break;
3943 	case OPC_OUB_SSP_ABORT_RSP:
3944 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_ABORT_RSP\n");
3945 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
3946 		break;
3947 	case OPC_OUB_SATA_ABORT_RSP:
3948 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_ABORT_RSP\n");
3949 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
3950 		break;
3951 	case OPC_OUB_SAS_DIAG_MODE_START_END:
3952 		pm8001_dbg(pm8001_ha, MSG,
3953 			   "OPC_OUB_SAS_DIAG_MODE_START_END\n");
3954 		break;
3955 	case OPC_OUB_SAS_DIAG_EXECUTE:
3956 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_DIAG_EXECUTE\n");
3957 		break;
3958 	case OPC_OUB_GET_TIME_STAMP:
3959 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_TIME_STAMP\n");
3960 		break;
3961 	case OPC_OUB_SAS_HW_EVENT_ACK:
3962 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_HW_EVENT_ACK\n");
3963 		break;
3964 	case OPC_OUB_PORT_CONTROL:
3965 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_PORT_CONTROL\n");
3966 		break;
3967 	case OPC_OUB_SMP_ABORT_RSP:
3968 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SMP_ABORT_RSP\n");
3969 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
3970 		break;
3971 	case OPC_OUB_GET_NVMD_DATA:
3972 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_NVMD_DATA\n");
3973 		pm8001_mpi_get_nvmd_resp(pm8001_ha, piomb);
3974 		break;
3975 	case OPC_OUB_SET_NVMD_DATA:
3976 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_NVMD_DATA\n");
3977 		pm8001_mpi_set_nvmd_resp(pm8001_ha, piomb);
3978 		break;
3979 	case OPC_OUB_DEVICE_HANDLE_REMOVAL:
3980 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEVICE_HANDLE_REMOVAL\n");
3981 		break;
3982 	case OPC_OUB_SET_DEVICE_STATE:
3983 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_DEVICE_STATE\n");
3984 		pm8001_mpi_set_dev_state_resp(pm8001_ha, piomb);
3985 		break;
3986 	case OPC_OUB_GET_DEVICE_STATE:
3987 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_DEVICE_STATE\n");
3988 		break;
3989 	case OPC_OUB_SET_DEV_INFO:
3990 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_DEV_INFO\n");
3991 		break;
3992 	case OPC_OUB_SAS_RE_INITIALIZE:
3993 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_RE_INITIALIZE\n");
3994 		break;
3995 	default:
3996 		pm8001_dbg(pm8001_ha, DEVIO,
3997 			   "Unknown outbound Queue IOMB OPC = %x\n",
3998 			   opc);
3999 		break;
4000 	}
4001 }
4002 
4003 static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec)
4004 {
4005 	struct outbound_queue_table *circularQ;
4006 	void *pMsg1 = NULL;
4007 	u8 bc;
4008 	u32 ret = MPI_IO_STATUS_FAIL;
4009 	unsigned long flags;
4010 
4011 	spin_lock_irqsave(&pm8001_ha->lock, flags);
4012 	circularQ = &pm8001_ha->outbnd_q_tbl[vec];
4013 	do {
4014 		ret = pm8001_mpi_msg_consume(pm8001_ha, circularQ, &pMsg1, &bc);
4015 		if (MPI_IO_STATUS_SUCCESS == ret) {
4016 			/* process the outbound message */
4017 			process_one_iomb(pm8001_ha, (void *)(pMsg1 - 4));
4018 			/* free the message from the outbound circular buffer */
4019 			pm8001_mpi_msg_free_set(pm8001_ha, pMsg1,
4020 							circularQ, bc);
4021 		}
4022 		if (MPI_IO_STATUS_BUSY == ret) {
4023 			/* Update the producer index from SPC */
4024 			circularQ->producer_index =
4025 				cpu_to_le32(pm8001_read_32(circularQ->pi_virt));
4026 			if (le32_to_cpu(circularQ->producer_index) ==
4027 				circularQ->consumer_idx)
4028 				/* OQ is empty */
4029 				break;
4030 		}
4031 	} while (1);
4032 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
4033 	return ret;
4034 }
4035 
4036 /* DMA_... to our direction translation. */
4037 static const u8 data_dir_flags[] = {
4038 	[DMA_BIDIRECTIONAL]	= DATA_DIR_BYRECIPIENT,	/* UNSPECIFIED */
4039 	[DMA_TO_DEVICE]		= DATA_DIR_OUT,		/* OUTBOUND */
4040 	[DMA_FROM_DEVICE]	= DATA_DIR_IN,		/* INBOUND */
4041 	[DMA_NONE]		= DATA_DIR_NONE,	/* NO TRANSFER */
4042 };
4043 void
4044 pm8001_chip_make_sg(struct scatterlist *scatter, int nr, void *prd)
4045 {
4046 	int i;
4047 	struct scatterlist *sg;
4048 	struct pm8001_prd *buf_prd = prd;
4049 
4050 	for_each_sg(scatter, sg, nr, i) {
4051 		buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
4052 		buf_prd->im_len.len = cpu_to_le32(sg_dma_len(sg));
4053 		buf_prd->im_len.e = 0;
4054 		buf_prd++;
4055 	}
4056 }
4057 
4058 static void build_smp_cmd(u32 deviceID, __le32 hTag, struct smp_req *psmp_cmd)
4059 {
4060 	psmp_cmd->tag = hTag;
4061 	psmp_cmd->device_id = cpu_to_le32(deviceID);
4062 	psmp_cmd->len_ip_ir = cpu_to_le32(1|(1 << 1));
4063 }
4064 
4065 /**
4066  * pm8001_chip_smp_req - send a SMP task to FW
4067  * @pm8001_ha: our hba card information.
4068  * @ccb: the ccb information this request used.
4069  */
4070 static int pm8001_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
4071 	struct pm8001_ccb_info *ccb)
4072 {
4073 	int elem, rc;
4074 	struct sas_task *task = ccb->task;
4075 	struct domain_device *dev = task->dev;
4076 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4077 	struct scatterlist *sg_req, *sg_resp;
4078 	u32 req_len, resp_len;
4079 	struct smp_req smp_cmd;
4080 	u32 opc;
4081 
4082 	memset(&smp_cmd, 0, sizeof(smp_cmd));
4083 	/*
4084 	 * DMA-map SMP request, response buffers
4085 	 */
4086 	sg_req = &task->smp_task.smp_req;
4087 	elem = dma_map_sg(pm8001_ha->dev, sg_req, 1, DMA_TO_DEVICE);
4088 	if (!elem)
4089 		return -ENOMEM;
4090 	req_len = sg_dma_len(sg_req);
4091 
4092 	sg_resp = &task->smp_task.smp_resp;
4093 	elem = dma_map_sg(pm8001_ha->dev, sg_resp, 1, DMA_FROM_DEVICE);
4094 	if (!elem) {
4095 		rc = -ENOMEM;
4096 		goto err_out;
4097 	}
4098 	resp_len = sg_dma_len(sg_resp);
4099 	/* must be in dwords */
4100 	if ((req_len & 0x3) || (resp_len & 0x3)) {
4101 		rc = -EINVAL;
4102 		goto err_out_2;
4103 	}
4104 
4105 	opc = OPC_INB_SMP_REQUEST;
4106 	smp_cmd.tag = cpu_to_le32(ccb->ccb_tag);
4107 	smp_cmd.long_smp_req.long_req_addr =
4108 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req));
4109 	smp_cmd.long_smp_req.long_req_size =
4110 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-4);
4111 	smp_cmd.long_smp_req.long_resp_addr =
4112 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_resp));
4113 	smp_cmd.long_smp_req.long_resp_size =
4114 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4);
4115 	build_smp_cmd(pm8001_dev->device_id, smp_cmd.tag, &smp_cmd);
4116 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc,
4117 				  &smp_cmd, sizeof(smp_cmd), 0);
4118 	if (rc)
4119 		goto err_out_2;
4120 
4121 	return 0;
4122 
4123 err_out_2:
4124 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_resp, 1,
4125 			DMA_FROM_DEVICE);
4126 err_out:
4127 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_req, 1,
4128 			DMA_TO_DEVICE);
4129 	return rc;
4130 }
4131 
4132 /**
4133  * pm8001_chip_ssp_io_req - send a SSP task to FW
4134  * @pm8001_ha: our hba card information.
4135  * @ccb: the ccb information this request used.
4136  */
4137 static int pm8001_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
4138 	struct pm8001_ccb_info *ccb)
4139 {
4140 	struct sas_task *task = ccb->task;
4141 	struct domain_device *dev = task->dev;
4142 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4143 	struct ssp_ini_io_start_req ssp_cmd;
4144 	u32 tag = ccb->ccb_tag;
4145 	u64 phys_addr;
4146 	u32 opc = OPC_INB_SSPINIIOSTART;
4147 	memset(&ssp_cmd, 0, sizeof(ssp_cmd));
4148 	memcpy(ssp_cmd.ssp_iu.lun, task->ssp_task.LUN, 8);
4149 	ssp_cmd.dir_m_tlr =
4150 		cpu_to_le32(data_dir_flags[task->data_dir] << 8 | 0x0);/*0 for
4151 	SAS 1.1 compatible TLR*/
4152 	ssp_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4153 	ssp_cmd.device_id = cpu_to_le32(pm8001_dev->device_id);
4154 	ssp_cmd.tag = cpu_to_le32(tag);
4155 	if (task->ssp_task.enable_first_burst)
4156 		ssp_cmd.ssp_iu.efb_prio_attr |= 0x80;
4157 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_prio << 3);
4158 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_attr & 7);
4159 	memcpy(ssp_cmd.ssp_iu.cdb, task->ssp_task.cmd->cmnd,
4160 	       task->ssp_task.cmd->cmd_len);
4161 
4162 	/* fill in PRD (scatter/gather) table, if any */
4163 	if (task->num_scatter > 1) {
4164 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4165 		phys_addr = ccb->ccb_dma_handle;
4166 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(phys_addr));
4167 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(phys_addr));
4168 		ssp_cmd.esgl = cpu_to_le32(1<<31);
4169 	} else if (task->num_scatter == 1) {
4170 		u64 dma_addr = sg_dma_address(task->scatter);
4171 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(dma_addr));
4172 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(dma_addr));
4173 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4174 		ssp_cmd.esgl = 0;
4175 	} else if (task->num_scatter == 0) {
4176 		ssp_cmd.addr_low = 0;
4177 		ssp_cmd.addr_high = 0;
4178 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4179 		ssp_cmd.esgl = 0;
4180 	}
4181 
4182 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &ssp_cmd,
4183 				    sizeof(ssp_cmd), 0);
4184 }
4185 
4186 static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
4187 	struct pm8001_ccb_info *ccb)
4188 {
4189 	struct sas_task *task = ccb->task;
4190 	struct domain_device *dev = task->dev;
4191 	struct pm8001_device *pm8001_ha_dev = dev->lldd_dev;
4192 	u32 tag = ccb->ccb_tag;
4193 	struct sata_start_req sata_cmd;
4194 	u32 hdr_tag, ncg_tag = 0;
4195 	u64 phys_addr;
4196 	u32 ATAP = 0x0;
4197 	u32 dir;
4198 	unsigned long flags;
4199 	u32  opc = OPC_INB_SATA_HOST_OPSTART;
4200 
4201 	memset(&sata_cmd, 0, sizeof(sata_cmd));
4202 
4203 	if (task->data_dir == DMA_NONE && !task->ata_task.use_ncq) {
4204 		ATAP = 0x04;  /* no data*/
4205 		pm8001_dbg(pm8001_ha, IO, "no data\n");
4206 	} else if (likely(!task->ata_task.device_control_reg_update)) {
4207 		if (task->ata_task.use_ncq &&
4208 		    dev->sata_dev.class != ATA_DEV_ATAPI) {
4209 			ATAP = 0x07; /* FPDMA */
4210 			pm8001_dbg(pm8001_ha, IO, "FPDMA\n");
4211 		} else if (task->ata_task.dma_xfer) {
4212 			ATAP = 0x06; /* DMA */
4213 			pm8001_dbg(pm8001_ha, IO, "DMA\n");
4214 		} else {
4215 			ATAP = 0x05; /* PIO*/
4216 			pm8001_dbg(pm8001_ha, IO, "PIO\n");
4217 		}
4218 	}
4219 	if (task->ata_task.use_ncq && pm8001_get_ncq_tag(task, &hdr_tag)) {
4220 		task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
4221 		ncg_tag = hdr_tag;
4222 	}
4223 	dir = data_dir_flags[task->data_dir] << 8;
4224 	sata_cmd.tag = cpu_to_le32(tag);
4225 	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
4226 	sata_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4227 	sata_cmd.ncqtag_atap_dir_m =
4228 		cpu_to_le32(((ncg_tag & 0xff)<<16)|((ATAP & 0x3f) << 10) | dir);
4229 	sata_cmd.sata_fis = task->ata_task.fis;
4230 	if (likely(!task->ata_task.device_control_reg_update))
4231 		sata_cmd.sata_fis.flags |= 0x80;/* C=1: update ATA cmd reg */
4232 	sata_cmd.sata_fis.flags &= 0xF0;/* PM_PORT field shall be 0 */
4233 	/* fill in PRD (scatter/gather) table, if any */
4234 	if (task->num_scatter > 1) {
4235 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4236 		phys_addr = ccb->ccb_dma_handle;
4237 		sata_cmd.addr_low = lower_32_bits(phys_addr);
4238 		sata_cmd.addr_high = upper_32_bits(phys_addr);
4239 		sata_cmd.esgl = cpu_to_le32(1 << 31);
4240 	} else if (task->num_scatter == 1) {
4241 		u64 dma_addr = sg_dma_address(task->scatter);
4242 		sata_cmd.addr_low = lower_32_bits(dma_addr);
4243 		sata_cmd.addr_high = upper_32_bits(dma_addr);
4244 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4245 		sata_cmd.esgl = 0;
4246 	} else if (task->num_scatter == 0) {
4247 		sata_cmd.addr_low = 0;
4248 		sata_cmd.addr_high = 0;
4249 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4250 		sata_cmd.esgl = 0;
4251 	}
4252 
4253 	/* Check for read log for failed drive and return */
4254 	if (sata_cmd.sata_fis.command == 0x2f) {
4255 		if (((pm8001_ha_dev->id & NCQ_READ_LOG_FLAG) ||
4256 			(pm8001_ha_dev->id & NCQ_ABORT_ALL_FLAG) ||
4257 			(pm8001_ha_dev->id & NCQ_2ND_RLE_FLAG))) {
4258 			struct task_status_struct *ts;
4259 
4260 			pm8001_ha_dev->id &= 0xDFFFFFFF;
4261 			ts = &task->task_status;
4262 
4263 			spin_lock_irqsave(&task->task_state_lock, flags);
4264 			ts->resp = SAS_TASK_COMPLETE;
4265 			ts->stat = SAS_SAM_STAT_GOOD;
4266 			task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
4267 			task->task_state_flags |= SAS_TASK_STATE_DONE;
4268 			if (unlikely((task->task_state_flags &
4269 					SAS_TASK_STATE_ABORTED))) {
4270 				spin_unlock_irqrestore(&task->task_state_lock,
4271 							flags);
4272 				pm8001_dbg(pm8001_ha, FAIL,
4273 					   "task 0x%p resp 0x%x  stat 0x%x but aborted by upper layer\n",
4274 					   task, ts->resp,
4275 					   ts->stat);
4276 				pm8001_ccb_task_free(pm8001_ha, ccb);
4277 			} else {
4278 				spin_unlock_irqrestore(&task->task_state_lock,
4279 							flags);
4280 				pm8001_ccb_task_free_done(pm8001_ha, ccb);
4281 				return 0;
4282 			}
4283 		}
4284 	}
4285 
4286 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &sata_cmd,
4287 				    sizeof(sata_cmd), 0);
4288 }
4289 
4290 /**
4291  * pm8001_chip_phy_start_req - start phy via PHY_START COMMAND
4292  * @pm8001_ha: our hba card information.
4293  * @phy_id: the phy id which we wanted to start up.
4294  */
4295 static int
4296 pm8001_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id)
4297 {
4298 	struct phy_start_req payload;
4299 	u32 tag = 0x01;
4300 	u32 opcode = OPC_INB_PHYSTART;
4301 
4302 	memset(&payload, 0, sizeof(payload));
4303 	payload.tag = cpu_to_le32(tag);
4304 	/*
4305 	 ** [0:7]   PHY Identifier
4306 	 ** [8:11]  link rate 1.5G, 3G, 6G
4307 	 ** [12:13] link mode 01b SAS mode; 10b SATA mode; 11b both
4308 	 ** [14]    0b disable spin up hold; 1b enable spin up hold
4309 	 */
4310 	payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE |
4311 		LINKMODE_AUTO |	LINKRATE_15 |
4312 		LINKRATE_30 | LINKRATE_60 | phy_id);
4313 	payload.sas_identify.dev_type = SAS_END_DEVICE;
4314 	payload.sas_identify.initiator_bits = SAS_PROTOCOL_ALL;
4315 	memcpy(payload.sas_identify.sas_addr,
4316 		pm8001_ha->sas_addr, SAS_ADDR_SIZE);
4317 	payload.sas_identify.phy_id = phy_id;
4318 
4319 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opcode, &payload,
4320 				    sizeof(payload), 0);
4321 }
4322 
4323 /**
4324  * pm8001_chip_phy_stop_req - start phy via PHY_STOP COMMAND
4325  * @pm8001_ha: our hba card information.
4326  * @phy_id: the phy id which we wanted to start up.
4327  */
4328 static int pm8001_chip_phy_stop_req(struct pm8001_hba_info *pm8001_ha,
4329 				    u8 phy_id)
4330 {
4331 	struct phy_stop_req payload;
4332 	u32 tag = 0x01;
4333 	u32 opcode = OPC_INB_PHYSTOP;
4334 
4335 	memset(&payload, 0, sizeof(payload));
4336 	payload.tag = cpu_to_le32(tag);
4337 	payload.phy_id = cpu_to_le32(phy_id);
4338 
4339 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opcode, &payload,
4340 				    sizeof(payload), 0);
4341 }
4342 
4343 /*
4344  * see comments on pm8001_mpi_reg_resp.
4345  */
4346 static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
4347 	struct pm8001_device *pm8001_dev, u32 flag)
4348 {
4349 	struct reg_dev_req payload;
4350 	u32	opc;
4351 	u32 stp_sspsmp_sata = 0x4;
4352 	u32 linkrate, phy_id;
4353 	int rc;
4354 	struct pm8001_ccb_info *ccb;
4355 	u8 retryFlag = 0x1;
4356 	u16 firstBurstSize = 0;
4357 	u16 ITNT = 2000;
4358 	struct domain_device *dev = pm8001_dev->sas_device;
4359 	struct domain_device *parent_dev = dev->parent;
4360 	struct pm8001_port *port = dev->port->lldd_port;
4361 
4362 	memset(&payload, 0, sizeof(payload));
4363 	ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_dev, NULL);
4364 	if (!ccb)
4365 		return -SAS_QUEUE_FULL;
4366 
4367 	payload.tag = cpu_to_le32(ccb->ccb_tag);
4368 	if (flag == 1)
4369 		stp_sspsmp_sata = 0x02; /*direct attached sata */
4370 	else {
4371 		if (pm8001_dev->dev_type == SAS_SATA_DEV)
4372 			stp_sspsmp_sata = 0x00; /* stp*/
4373 		else if (pm8001_dev->dev_type == SAS_END_DEVICE ||
4374 			dev_is_expander(pm8001_dev->dev_type))
4375 			stp_sspsmp_sata = 0x01; /*ssp or smp*/
4376 	}
4377 	if (parent_dev && dev_is_expander(parent_dev->dev_type))
4378 		phy_id = parent_dev->ex_dev.ex_phy->phy_id;
4379 	else
4380 		phy_id = pm8001_dev->attached_phy;
4381 	opc = OPC_INB_REG_DEV;
4382 	linkrate = (pm8001_dev->sas_device->linkrate < dev->port->linkrate) ?
4383 			pm8001_dev->sas_device->linkrate : dev->port->linkrate;
4384 	payload.phyid_portid =
4385 		cpu_to_le32(((port->port_id) & 0x0F) |
4386 		((phy_id & 0x0F) << 4));
4387 	payload.dtype_dlr_retry = cpu_to_le32((retryFlag & 0x01) |
4388 		((linkrate & 0x0F) * 0x1000000) |
4389 		((stp_sspsmp_sata & 0x03) * 0x10000000));
4390 	payload.firstburstsize_ITNexustimeout =
4391 		cpu_to_le32(ITNT | (firstBurstSize * 0x10000));
4392 	memcpy(payload.sas_addr, pm8001_dev->sas_device->sas_addr,
4393 		SAS_ADDR_SIZE);
4394 
4395 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4396 				  sizeof(payload), 0);
4397 	if (rc)
4398 		pm8001_ccb_free(pm8001_ha, ccb);
4399 
4400 	return rc;
4401 }
4402 
4403 /*
4404  * see comments on pm8001_mpi_reg_resp.
4405  */
4406 int pm8001_chip_dereg_dev_req(struct pm8001_hba_info *pm8001_ha,
4407 	u32 device_id)
4408 {
4409 	struct dereg_dev_req payload;
4410 	u32 opc = OPC_INB_DEREG_DEV_HANDLE;
4411 
4412 	memset(&payload, 0, sizeof(payload));
4413 	payload.tag = cpu_to_le32(1);
4414 	payload.device_id = cpu_to_le32(device_id);
4415 	pm8001_dbg(pm8001_ha, MSG, "unregister device device_id = %d\n",
4416 		   device_id);
4417 
4418 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4419 				    sizeof(payload), 0);
4420 }
4421 
4422 /**
4423  * pm8001_chip_phy_ctl_req - support the local phy operation
4424  * @pm8001_ha: our hba card information.
4425  * @phyId: the phy id which we wanted to operate
4426  * @phy_op: the phy operation to request
4427  */
4428 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
4429 	u32 phyId, u32 phy_op)
4430 {
4431 	struct local_phy_ctl_req payload;
4432 	u32 opc = OPC_INB_LOCAL_PHY_CONTROL;
4433 
4434 	memset(&payload, 0, sizeof(payload));
4435 	payload.tag = cpu_to_le32(1);
4436 	payload.phyop_phyid =
4437 		cpu_to_le32(((phy_op & 0xff) << 8) | (phyId & 0x0F));
4438 
4439 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4440 				    sizeof(payload), 0);
4441 }
4442 
4443 static u32 pm8001_chip_is_our_interrupt(struct pm8001_hba_info *pm8001_ha)
4444 {
4445 #ifdef PM8001_USE_MSIX
4446 	return 1;
4447 #else
4448 	u32 value;
4449 
4450 	value = pm8001_cr32(pm8001_ha, 0, MSGU_ODR);
4451 	if (value)
4452 		return 1;
4453 	return 0;
4454 #endif
4455 }
4456 
4457 /**
4458  * pm8001_chip_isr - PM8001 isr handler.
4459  * @pm8001_ha: our hba card information.
4460  * @vec: IRQ number
4461  */
4462 static irqreturn_t
4463 pm8001_chip_isr(struct pm8001_hba_info *pm8001_ha, u8 vec)
4464 {
4465 	pm8001_chip_interrupt_disable(pm8001_ha, vec);
4466 	pm8001_dbg(pm8001_ha, DEVIO,
4467 		   "irq vec %d, ODMR:0x%x\n",
4468 		   vec, pm8001_cr32(pm8001_ha, 0, 0x30));
4469 	process_oq(pm8001_ha, vec);
4470 	pm8001_chip_interrupt_enable(pm8001_ha, vec);
4471 	return IRQ_HANDLED;
4472 }
4473 
4474 static int send_task_abort(struct pm8001_hba_info *pm8001_ha, u32 opc,
4475 	u32 dev_id, enum sas_internal_abort type, u32 task_tag, u32 cmd_tag)
4476 {
4477 	struct task_abort_req task_abort;
4478 
4479 	memset(&task_abort, 0, sizeof(task_abort));
4480 	if (type == SAS_INTERNAL_ABORT_SINGLE) {
4481 		task_abort.abort_all = 0;
4482 		task_abort.device_id = cpu_to_le32(dev_id);
4483 		task_abort.tag_to_abort = cpu_to_le32(task_tag);
4484 	} else if (type == SAS_INTERNAL_ABORT_DEV) {
4485 		task_abort.abort_all = cpu_to_le32(1);
4486 		task_abort.device_id = cpu_to_le32(dev_id);
4487 	} else {
4488 		pm8001_dbg(pm8001_ha, EH, "unknown type (%d)\n", type);
4489 		return -EIO;
4490 	}
4491 
4492 	task_abort.tag = cpu_to_le32(cmd_tag);
4493 
4494 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &task_abort,
4495 				    sizeof(task_abort), 0);
4496 }
4497 
4498 /*
4499  * pm8001_chip_abort_task - SAS abort task when error or exception happened.
4500  */
4501 int pm8001_chip_abort_task(struct pm8001_hba_info *pm8001_ha,
4502 	struct pm8001_ccb_info *ccb)
4503 {
4504 	struct sas_task *task = ccb->task;
4505 	struct sas_internal_abort_task *abort = &task->abort_task;
4506 	struct pm8001_device *pm8001_dev = ccb->device;
4507 	int rc = TMF_RESP_FUNC_FAILED;
4508 	u32 opc, device_id;
4509 
4510 	pm8001_dbg(pm8001_ha, EH, "cmd_tag = %x, abort task tag = 0x%x\n",
4511 		   ccb->ccb_tag, abort->tag);
4512 	if (pm8001_dev->dev_type == SAS_END_DEVICE)
4513 		opc = OPC_INB_SSP_ABORT;
4514 	else if (pm8001_dev->dev_type == SAS_SATA_DEV)
4515 		opc = OPC_INB_SATA_ABORT;
4516 	else
4517 		opc = OPC_INB_SMP_ABORT;/* SMP */
4518 	device_id = pm8001_dev->device_id;
4519 	rc = send_task_abort(pm8001_ha, opc, device_id, abort->type,
4520 			     abort->tag, ccb->ccb_tag);
4521 	if (rc != TMF_RESP_FUNC_COMPLETE)
4522 		pm8001_dbg(pm8001_ha, EH, "rc= %d\n", rc);
4523 	return rc;
4524 }
4525 
4526 /**
4527  * pm8001_chip_ssp_tm_req - built the task management command.
4528  * @pm8001_ha: our hba card information.
4529  * @ccb: the ccb information.
4530  * @tmf: task management function.
4531  */
4532 int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
4533 	struct pm8001_ccb_info *ccb, struct sas_tmf_task *tmf)
4534 {
4535 	struct sas_task *task = ccb->task;
4536 	struct domain_device *dev = task->dev;
4537 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4538 	u32 opc = OPC_INB_SSPINITMSTART;
4539 	struct ssp_ini_tm_start_req sspTMCmd;
4540 
4541 	memset(&sspTMCmd, 0, sizeof(sspTMCmd));
4542 	sspTMCmd.device_id = cpu_to_le32(pm8001_dev->device_id);
4543 	sspTMCmd.relate_tag = cpu_to_le32((u32)tmf->tag_of_task_to_be_managed);
4544 	sspTMCmd.tmf = cpu_to_le32(tmf->tmf);
4545 	memcpy(sspTMCmd.lun, task->ssp_task.LUN, 8);
4546 	sspTMCmd.tag = cpu_to_le32(ccb->ccb_tag);
4547 	if (pm8001_ha->chip_id != chip_8001)
4548 		sspTMCmd.ds_ads_m = cpu_to_le32(0x08);
4549 
4550 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &sspTMCmd,
4551 				    sizeof(sspTMCmd), 0);
4552 }
4553 
4554 int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
4555 	void *payload)
4556 {
4557 	u32 opc = OPC_INB_GET_NVMD_DATA;
4558 	u32 nvmd_type;
4559 	int rc;
4560 	struct pm8001_ccb_info *ccb;
4561 	struct get_nvm_data_req nvmd_req;
4562 	struct fw_control_ex *fw_control_context;
4563 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4564 
4565 	nvmd_type = ioctl_payload->minor_function;
4566 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4567 	if (!fw_control_context)
4568 		return -ENOMEM;
4569 	fw_control_context->usrAddr = (u8 *)ioctl_payload->func_specific;
4570 	fw_control_context->len = ioctl_payload->rd_length;
4571 	memset(&nvmd_req, 0, sizeof(nvmd_req));
4572 
4573 	ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
4574 	if (!ccb) {
4575 		kfree(fw_control_context);
4576 		return -SAS_QUEUE_FULL;
4577 	}
4578 	ccb->fw_control_context = fw_control_context;
4579 
4580 	nvmd_req.tag = cpu_to_le32(ccb->ccb_tag);
4581 
4582 	switch (nvmd_type) {
4583 	case TWI_DEVICE: {
4584 		u32 twi_addr, twi_page_size;
4585 		twi_addr = 0xa8;
4586 		twi_page_size = 2;
4587 
4588 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
4589 			twi_page_size << 8 | TWI_DEVICE);
4590 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4591 		nvmd_req.resp_addr_hi =
4592 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4593 		nvmd_req.resp_addr_lo =
4594 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4595 		break;
4596 	}
4597 	case C_SEEPROM: {
4598 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
4599 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4600 		nvmd_req.resp_addr_hi =
4601 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4602 		nvmd_req.resp_addr_lo =
4603 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4604 		break;
4605 	}
4606 	case VPD_FLASH: {
4607 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
4608 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4609 		nvmd_req.resp_addr_hi =
4610 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4611 		nvmd_req.resp_addr_lo =
4612 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4613 		break;
4614 	}
4615 	case EXPAN_ROM: {
4616 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
4617 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4618 		nvmd_req.resp_addr_hi =
4619 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4620 		nvmd_req.resp_addr_lo =
4621 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4622 		break;
4623 	}
4624 	case IOP_RDUMP: {
4625 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | IOP_RDUMP);
4626 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4627 		nvmd_req.vpd_offset = cpu_to_le32(ioctl_payload->offset);
4628 		nvmd_req.resp_addr_hi =
4629 		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4630 		nvmd_req.resp_addr_lo =
4631 		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4632 		break;
4633 	}
4634 	default:
4635 		break;
4636 	}
4637 
4638 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &nvmd_req,
4639 				  sizeof(nvmd_req), 0);
4640 	if (rc) {
4641 		kfree(fw_control_context);
4642 		pm8001_ccb_free(pm8001_ha, ccb);
4643 	}
4644 	return rc;
4645 }
4646 
4647 int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha,
4648 	void *payload)
4649 {
4650 	u32 opc = OPC_INB_SET_NVMD_DATA;
4651 	u32 nvmd_type;
4652 	int rc;
4653 	struct pm8001_ccb_info *ccb;
4654 	struct set_nvm_data_req nvmd_req;
4655 	struct fw_control_ex *fw_control_context;
4656 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4657 
4658 	nvmd_type = ioctl_payload->minor_function;
4659 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4660 	if (!fw_control_context)
4661 		return -ENOMEM;
4662 
4663 	memcpy(pm8001_ha->memoryMap.region[NVMD].virt_ptr,
4664 		&ioctl_payload->func_specific,
4665 		ioctl_payload->wr_length);
4666 	memset(&nvmd_req, 0, sizeof(nvmd_req));
4667 
4668 	ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
4669 	if (!ccb) {
4670 		kfree(fw_control_context);
4671 		return -SAS_QUEUE_FULL;
4672 	}
4673 	ccb->fw_control_context = fw_control_context;
4674 
4675 	nvmd_req.tag = cpu_to_le32(ccb->ccb_tag);
4676 	switch (nvmd_type) {
4677 	case TWI_DEVICE: {
4678 		u32 twi_addr, twi_page_size;
4679 		twi_addr = 0xa8;
4680 		twi_page_size = 2;
4681 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4682 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
4683 			twi_page_size << 8 | TWI_DEVICE);
4684 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4685 		nvmd_req.resp_addr_hi =
4686 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4687 		nvmd_req.resp_addr_lo =
4688 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4689 		break;
4690 	}
4691 	case C_SEEPROM:
4692 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
4693 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4694 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4695 		nvmd_req.resp_addr_hi =
4696 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4697 		nvmd_req.resp_addr_lo =
4698 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4699 		break;
4700 	case VPD_FLASH:
4701 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
4702 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4703 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4704 		nvmd_req.resp_addr_hi =
4705 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4706 		nvmd_req.resp_addr_lo =
4707 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4708 		break;
4709 	case EXPAN_ROM:
4710 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
4711 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4712 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4713 		nvmd_req.resp_addr_hi =
4714 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4715 		nvmd_req.resp_addr_lo =
4716 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4717 		break;
4718 	default:
4719 		break;
4720 	}
4721 
4722 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &nvmd_req,
4723 			sizeof(nvmd_req), 0);
4724 	if (rc) {
4725 		kfree(fw_control_context);
4726 		pm8001_ccb_free(pm8001_ha, ccb);
4727 	}
4728 	return rc;
4729 }
4730 
4731 /**
4732  * pm8001_chip_fw_flash_update_build - support the firmware update operation
4733  * @pm8001_ha: our hba card information.
4734  * @fw_flash_updata_info: firmware flash update param
4735  * @tag: Tag to apply to the payload
4736  */
4737 int
4738 pm8001_chip_fw_flash_update_build(struct pm8001_hba_info *pm8001_ha,
4739 	void *fw_flash_updata_info, u32 tag)
4740 {
4741 	struct fw_flash_Update_req payload;
4742 	struct fw_flash_updata_info *info;
4743 	u32 opc = OPC_INB_FW_FLASH_UPDATE;
4744 
4745 	memset(&payload, 0, sizeof(struct fw_flash_Update_req));
4746 	info = fw_flash_updata_info;
4747 	payload.tag = cpu_to_le32(tag);
4748 	payload.cur_image_len = cpu_to_le32(info->cur_image_len);
4749 	payload.cur_image_offset = cpu_to_le32(info->cur_image_offset);
4750 	payload.total_image_len = cpu_to_le32(info->total_image_len);
4751 	payload.len = info->sgl.im_len.len ;
4752 	payload.sgl_addr_lo =
4753 		cpu_to_le32(lower_32_bits(le64_to_cpu(info->sgl.addr)));
4754 	payload.sgl_addr_hi =
4755 		cpu_to_le32(upper_32_bits(le64_to_cpu(info->sgl.addr)));
4756 
4757 	return pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4758 				    sizeof(payload), 0);
4759 }
4760 
4761 int
4762 pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
4763 	void *payload)
4764 {
4765 	struct fw_flash_updata_info flash_update_info;
4766 	struct fw_control_info *fw_control;
4767 	struct fw_control_ex *fw_control_context;
4768 	int rc;
4769 	struct pm8001_ccb_info *ccb;
4770 	void *buffer = pm8001_ha->memoryMap.region[FW_FLASH].virt_ptr;
4771 	dma_addr_t phys_addr = pm8001_ha->memoryMap.region[FW_FLASH].phys_addr;
4772 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4773 
4774 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4775 	if (!fw_control_context)
4776 		return -ENOMEM;
4777 	fw_control = (struct fw_control_info *)&ioctl_payload->func_specific;
4778 	pm8001_dbg(pm8001_ha, DEVIO,
4779 		   "dma fw_control context input length :%x\n",
4780 		   fw_control->len);
4781 	memcpy(buffer, fw_control->buffer, fw_control->len);
4782 	flash_update_info.sgl.addr = cpu_to_le64(phys_addr);
4783 	flash_update_info.sgl.im_len.len = cpu_to_le32(fw_control->len);
4784 	flash_update_info.sgl.im_len.e = 0;
4785 	flash_update_info.cur_image_offset = fw_control->offset;
4786 	flash_update_info.cur_image_len = fw_control->len;
4787 	flash_update_info.total_image_len = fw_control->size;
4788 	fw_control_context->fw_control = fw_control;
4789 	fw_control_context->virtAddr = buffer;
4790 	fw_control_context->phys_addr = phys_addr;
4791 	fw_control_context->len = fw_control->len;
4792 
4793 	ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
4794 	if (!ccb) {
4795 		kfree(fw_control_context);
4796 		return -SAS_QUEUE_FULL;
4797 	}
4798 	ccb->fw_control_context = fw_control_context;
4799 
4800 	rc = pm8001_chip_fw_flash_update_build(pm8001_ha, &flash_update_info,
4801 					       ccb->ccb_tag);
4802 	if (rc) {
4803 		kfree(fw_control_context);
4804 		pm8001_ccb_free(pm8001_ha, ccb);
4805 	}
4806 
4807 	return rc;
4808 }
4809 
4810 ssize_t
4811 pm8001_get_gsm_dump(struct device *cdev, u32 length, char *buf)
4812 {
4813 	u32 value, rem, offset = 0, bar = 0;
4814 	u32 index, work_offset, dw_length;
4815 	u32 shift_value, gsm_base, gsm_dump_offset;
4816 	char *direct_data;
4817 	struct Scsi_Host *shost = class_to_shost(cdev);
4818 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
4819 	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
4820 
4821 	direct_data = buf;
4822 	gsm_dump_offset = pm8001_ha->fatal_forensic_shift_offset;
4823 
4824 	/* check max is 1 Mbytes */
4825 	if ((length > 0x100000) || (gsm_dump_offset & 3) ||
4826 		((gsm_dump_offset + length) > 0x1000000))
4827 			return -EINVAL;
4828 
4829 	if (pm8001_ha->chip_id == chip_8001)
4830 		bar = 2;
4831 	else
4832 		bar = 1;
4833 
4834 	work_offset = gsm_dump_offset & 0xFFFF0000;
4835 	offset = gsm_dump_offset & 0x0000FFFF;
4836 	gsm_dump_offset = work_offset;
4837 	/* adjust length to dword boundary */
4838 	rem = length & 3;
4839 	dw_length = length >> 2;
4840 
4841 	for (index = 0; index < dw_length; index++) {
4842 		if ((work_offset + offset) & 0xFFFF0000) {
4843 			if (pm8001_ha->chip_id == chip_8001)
4844 				shift_value = ((gsm_dump_offset + offset) &
4845 						SHIFT_REG_64K_MASK);
4846 			else
4847 				shift_value = (((gsm_dump_offset + offset) &
4848 						SHIFT_REG_64K_MASK) >>
4849 						SHIFT_REG_BIT_SHIFT);
4850 
4851 			if (pm8001_ha->chip_id == chip_8001) {
4852 				gsm_base = GSM_BASE;
4853 				if (-1 == pm8001_bar4_shift(pm8001_ha,
4854 						(gsm_base + shift_value)))
4855 					return -EIO;
4856 			} else {
4857 				gsm_base = 0;
4858 				if (-1 == pm80xx_bar4_shift(pm8001_ha,
4859 						(gsm_base + shift_value)))
4860 					return -EIO;
4861 			}
4862 			gsm_dump_offset = (gsm_dump_offset + offset) &
4863 						0xFFFF0000;
4864 			work_offset = 0;
4865 			offset = offset & 0x0000FFFF;
4866 		}
4867 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
4868 						0x0000FFFF);
4869 		direct_data += sprintf(direct_data, "%08x ", value);
4870 		offset += 4;
4871 	}
4872 	if (rem != 0) {
4873 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
4874 						0x0000FFFF);
4875 		/* xfr for non_dw */
4876 		direct_data += sprintf(direct_data, "%08x ", value);
4877 	}
4878 	/* Shift back to BAR4 original address */
4879 	if (-1 == pm8001_bar4_shift(pm8001_ha, 0))
4880 			return -EIO;
4881 	pm8001_ha->fatal_forensic_shift_offset += 1024;
4882 
4883 	if (pm8001_ha->fatal_forensic_shift_offset >= 0x100000)
4884 		pm8001_ha->fatal_forensic_shift_offset = 0;
4885 	return direct_data - buf;
4886 }
4887 
4888 int
4889 pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
4890 	struct pm8001_device *pm8001_dev, u32 state)
4891 {
4892 	struct set_dev_state_req payload;
4893 	struct pm8001_ccb_info *ccb;
4894 	int rc;
4895 	u32 opc = OPC_INB_SET_DEVICE_STATE;
4896 
4897 	memset(&payload, 0, sizeof(payload));
4898 
4899 	ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_dev, NULL);
4900 	if (!ccb)
4901 		return -SAS_QUEUE_FULL;
4902 
4903 	payload.tag = cpu_to_le32(ccb->ccb_tag);
4904 	payload.device_id = cpu_to_le32(pm8001_dev->device_id);
4905 	payload.nds = cpu_to_le32(state);
4906 
4907 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4908 				  sizeof(payload), 0);
4909 	if (rc)
4910 		pm8001_ccb_free(pm8001_ha, ccb);
4911 
4912 	return rc;
4913 }
4914 
4915 static int
4916 pm8001_chip_sas_re_initialization(struct pm8001_hba_info *pm8001_ha)
4917 {
4918 	struct sas_re_initialization_req payload;
4919 	struct pm8001_ccb_info *ccb;
4920 	int rc;
4921 	u32 opc = OPC_INB_SAS_RE_INITIALIZE;
4922 
4923 	memset(&payload, 0, sizeof(payload));
4924 
4925 	ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
4926 	if (!ccb)
4927 		return -SAS_QUEUE_FULL;
4928 
4929 	payload.tag = cpu_to_le32(ccb->ccb_tag);
4930 	payload.SSAHOLT = cpu_to_le32(0xd << 25);
4931 	payload.sata_hol_tmo = cpu_to_le32(80);
4932 	payload.open_reject_cmdretries_data_retries = cpu_to_le32(0xff00ff);
4933 
4934 	rc = pm8001_mpi_build_cmd(pm8001_ha, 0, opc, &payload,
4935 				  sizeof(payload), 0);
4936 	if (rc)
4937 		pm8001_ccb_free(pm8001_ha, ccb);
4938 
4939 	return rc;
4940 }
4941 
4942 const struct pm8001_dispatch pm8001_8001_dispatch = {
4943 	.name			= "pmc8001",
4944 	.chip_init		= pm8001_chip_init,
4945 	.chip_post_init		= pm8001_chip_post_init,
4946 	.chip_soft_rst		= pm8001_chip_soft_rst,
4947 	.chip_rst		= pm8001_hw_chip_rst,
4948 	.chip_iounmap		= pm8001_chip_iounmap,
4949 	.isr			= pm8001_chip_isr,
4950 	.is_our_interrupt	= pm8001_chip_is_our_interrupt,
4951 	.isr_process_oq		= process_oq,
4952 	.interrupt_enable 	= pm8001_chip_interrupt_enable,
4953 	.interrupt_disable	= pm8001_chip_interrupt_disable,
4954 	.make_prd		= pm8001_chip_make_sg,
4955 	.smp_req		= pm8001_chip_smp_req,
4956 	.ssp_io_req		= pm8001_chip_ssp_io_req,
4957 	.sata_req		= pm8001_chip_sata_req,
4958 	.phy_start_req		= pm8001_chip_phy_start_req,
4959 	.phy_stop_req		= pm8001_chip_phy_stop_req,
4960 	.reg_dev_req		= pm8001_chip_reg_dev_req,
4961 	.dereg_dev_req		= pm8001_chip_dereg_dev_req,
4962 	.phy_ctl_req		= pm8001_chip_phy_ctl_req,
4963 	.task_abort		= pm8001_chip_abort_task,
4964 	.ssp_tm_req		= pm8001_chip_ssp_tm_req,
4965 	.get_nvmd_req		= pm8001_chip_get_nvmd_req,
4966 	.set_nvmd_req		= pm8001_chip_set_nvmd_req,
4967 	.fw_flash_update_req	= pm8001_chip_fw_flash_update_req,
4968 	.set_dev_state_req	= pm8001_chip_set_dev_state_req,
4969 	.sas_re_init_req	= pm8001_chip_sas_re_initialization,
4970 	.fatal_errors		= pm80xx_fatal_errors,
4971 };
4972