xref: /linux/drivers/scsi/pm8001/pm8001_hwi.c (revision 80c1c54a2aa3c5177f73fc5d505668df56fb28b6)
1 /*
2  * PMC-Sierra SPC 8001 SAS/SATA based host adapters driver
3  *
4  * Copyright (c) 2008-2009 USI Co., Ltd.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions, and the following disclaimer,
12  *    without modification.
13  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14  *    substantially similar to the "NO WARRANTY" disclaimer below
15  *    ("Disclaimer") and any redistribution must be conditioned upon
16  *    including a substantially similar Disclaimer requirement for further
17  *    binary redistribution.
18  * 3. Neither the names of the above-listed copyright holders nor the names
19  *    of any contributors may be used to endorse or promote products derived
20  *    from this software without specific prior written permission.
21  *
22  * Alternatively, this software may be distributed under the terms of the
23  * GNU General Public License ("GPL") version 2 as published by the Free
24  * Software Foundation.
25  *
26  * NO WARRANTY
27  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
30  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
35  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
36  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37  * POSSIBILITY OF SUCH DAMAGES.
38  *
39  */
40  #include <linux/slab.h>
41  #include "pm8001_sas.h"
42  #include "pm8001_hwi.h"
43  #include "pm8001_chips.h"
44  #include "pm8001_ctl.h"
45 
46 /**
47  * read_main_config_table - read the configure table and save it.
48  * @pm8001_ha: our hba card information
49  */
50 static void read_main_config_table(struct pm8001_hba_info *pm8001_ha)
51 {
52 	void __iomem *address = pm8001_ha->main_cfg_tbl_addr;
53 	pm8001_ha->main_cfg_tbl.pm8001_tbl.signature	=
54 				pm8001_mr32(address, 0x00);
55 	pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev =
56 				pm8001_mr32(address, 0x04);
57 	pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev	=
58 				pm8001_mr32(address, 0x08);
59 	pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io	=
60 				pm8001_mr32(address, 0x0C);
61 	pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl	=
62 				pm8001_mr32(address, 0x10);
63 	pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag =
64 				pm8001_mr32(address, 0x14);
65 	pm8001_ha->main_cfg_tbl.pm8001_tbl.gst_offset	=
66 				pm8001_mr32(address, 0x18);
67 	pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_queue_offset =
68 		pm8001_mr32(address, MAIN_IBQ_OFFSET);
69 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_queue_offset =
70 		pm8001_mr32(address, MAIN_OBQ_OFFSET);
71 	pm8001_ha->main_cfg_tbl.pm8001_tbl.hda_mode_flag	=
72 		pm8001_mr32(address, MAIN_HDA_FLAGS_OFFSET);
73 
74 	/* read analog Setting offset from the configuration table */
75 	pm8001_ha->main_cfg_tbl.pm8001_tbl.anolog_setup_table_offset =
76 		pm8001_mr32(address, MAIN_ANALOG_SETUP_OFFSET);
77 
78 	/* read Error Dump Offset and Length */
79 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_offset0 =
80 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP0_OFFSET);
81 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_length0 =
82 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP0_LENGTH);
83 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_offset1 =
84 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP1_OFFSET);
85 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_length1 =
86 		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP1_LENGTH);
87 }
88 
89 /**
90  * read_general_status_table - read the general status table and save it.
91  * @pm8001_ha: our hba card information
92  */
93 static void read_general_status_table(struct pm8001_hba_info *pm8001_ha)
94 {
95 	void __iomem *address = pm8001_ha->general_stat_tbl_addr;
96 	pm8001_ha->gs_tbl.pm8001_tbl.gst_len_mpistate	=
97 				pm8001_mr32(address, 0x00);
98 	pm8001_ha->gs_tbl.pm8001_tbl.iq_freeze_state0	=
99 				pm8001_mr32(address, 0x04);
100 	pm8001_ha->gs_tbl.pm8001_tbl.iq_freeze_state1	=
101 				pm8001_mr32(address, 0x08);
102 	pm8001_ha->gs_tbl.pm8001_tbl.msgu_tcnt		=
103 				pm8001_mr32(address, 0x0C);
104 	pm8001_ha->gs_tbl.pm8001_tbl.iop_tcnt		=
105 				pm8001_mr32(address, 0x10);
106 	pm8001_ha->gs_tbl.pm8001_tbl.rsvd		=
107 				pm8001_mr32(address, 0x14);
108 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[0]	=
109 				pm8001_mr32(address, 0x18);
110 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[1]	=
111 				pm8001_mr32(address, 0x1C);
112 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[2]	=
113 				pm8001_mr32(address, 0x20);
114 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[3]	=
115 				pm8001_mr32(address, 0x24);
116 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[4]	=
117 				pm8001_mr32(address, 0x28);
118 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[5]	=
119 				pm8001_mr32(address, 0x2C);
120 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[6]	=
121 				pm8001_mr32(address, 0x30);
122 	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[7]	=
123 				pm8001_mr32(address, 0x34);
124 	pm8001_ha->gs_tbl.pm8001_tbl.gpio_input_val	=
125 				pm8001_mr32(address, 0x38);
126 	pm8001_ha->gs_tbl.pm8001_tbl.rsvd1[0]		=
127 				pm8001_mr32(address, 0x3C);
128 	pm8001_ha->gs_tbl.pm8001_tbl.rsvd1[1]		=
129 				pm8001_mr32(address, 0x40);
130 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[0]	=
131 				pm8001_mr32(address, 0x44);
132 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[1]	=
133 				pm8001_mr32(address, 0x48);
134 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[2]	=
135 				pm8001_mr32(address, 0x4C);
136 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[3]	=
137 				pm8001_mr32(address, 0x50);
138 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[4]	=
139 				pm8001_mr32(address, 0x54);
140 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[5]	=
141 				pm8001_mr32(address, 0x58);
142 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[6]	=
143 				pm8001_mr32(address, 0x5C);
144 	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[7]	=
145 				pm8001_mr32(address, 0x60);
146 }
147 
148 /**
149  * read_inbnd_queue_table - read the inbound queue table and save it.
150  * @pm8001_ha: our hba card information
151  */
152 static void read_inbnd_queue_table(struct pm8001_hba_info *pm8001_ha)
153 {
154 	int i;
155 	void __iomem *address = pm8001_ha->inbnd_q_tbl_addr;
156 	for (i = 0; i < PM8001_MAX_INB_NUM; i++) {
157 		u32 offset = i * 0x20;
158 		pm8001_ha->inbnd_q_tbl[i].pi_pci_bar =
159 		      get_pci_bar_index(pm8001_mr32(address, (offset + 0x14)));
160 		pm8001_ha->inbnd_q_tbl[i].pi_offset =
161 			pm8001_mr32(address, (offset + 0x18));
162 	}
163 }
164 
165 /**
166  * read_outbnd_queue_table - read the outbound queue table and save it.
167  * @pm8001_ha: our hba card information
168  */
169 static void read_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha)
170 {
171 	int i;
172 	void __iomem *address = pm8001_ha->outbnd_q_tbl_addr;
173 	for (i = 0; i < PM8001_MAX_OUTB_NUM; i++) {
174 		u32 offset = i * 0x24;
175 		pm8001_ha->outbnd_q_tbl[i].ci_pci_bar =
176 		      get_pci_bar_index(pm8001_mr32(address, (offset + 0x14)));
177 		pm8001_ha->outbnd_q_tbl[i].ci_offset =
178 			pm8001_mr32(address, (offset + 0x18));
179 	}
180 }
181 
182 /**
183  * init_default_table_values - init the default table.
184  * @pm8001_ha: our hba card information
185  */
186 static void init_default_table_values(struct pm8001_hba_info *pm8001_ha)
187 {
188 	int i;
189 	u32 offsetib, offsetob;
190 	void __iomem *addressib = pm8001_ha->inbnd_q_tbl_addr;
191 	void __iomem *addressob = pm8001_ha->outbnd_q_tbl_addr;
192 	u32 ib_offset = pm8001_ha->ib_offset;
193 	u32 ob_offset = pm8001_ha->ob_offset;
194 	u32 ci_offset = pm8001_ha->ci_offset;
195 	u32 pi_offset = pm8001_ha->pi_offset;
196 
197 	pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_q_nppd_hppd		= 0;
198 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid0_3	= 0;
199 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid4_7	= 0;
200 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid0_3	= 0;
201 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid4_7	= 0;
202 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ITNexus_event_pid0_3 =
203 									 0;
204 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ITNexus_event_pid4_7 =
205 									 0;
206 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ssp_event_pid0_3 = 0;
207 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ssp_event_pid4_7 = 0;
208 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_smp_event_pid0_3 = 0;
209 	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_smp_event_pid4_7 = 0;
210 
211 	pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_event_log_addr		=
212 		pm8001_ha->memoryMap.region[AAP1].phys_addr_hi;
213 	pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_event_log_addr		=
214 		pm8001_ha->memoryMap.region[AAP1].phys_addr_lo;
215 	pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_size		=
216 		PM8001_EVENT_LOG_SIZE;
217 	pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_option		= 0x01;
218 	pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_iop_event_log_addr	=
219 		pm8001_ha->memoryMap.region[IOP].phys_addr_hi;
220 	pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_iop_event_log_addr	=
221 		pm8001_ha->memoryMap.region[IOP].phys_addr_lo;
222 	pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_size		=
223 		PM8001_EVENT_LOG_SIZE;
224 	pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_option		= 0x01;
225 	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_interrupt		= 0x01;
226 	for (i = 0; i < pm8001_ha->max_q_num; i++) {
227 		pm8001_ha->inbnd_q_tbl[i].element_pri_size_cnt	=
228 			PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x00<<30);
229 		pm8001_ha->inbnd_q_tbl[i].upper_base_addr	=
230 			pm8001_ha->memoryMap.region[ib_offset + i].phys_addr_hi;
231 		pm8001_ha->inbnd_q_tbl[i].lower_base_addr	=
232 		pm8001_ha->memoryMap.region[ib_offset + i].phys_addr_lo;
233 		pm8001_ha->inbnd_q_tbl[i].base_virt		=
234 		  (u8 *)pm8001_ha->memoryMap.region[ib_offset + i].virt_ptr;
235 		pm8001_ha->inbnd_q_tbl[i].total_length		=
236 			pm8001_ha->memoryMap.region[ib_offset + i].total_len;
237 		pm8001_ha->inbnd_q_tbl[i].ci_upper_base_addr	=
238 			pm8001_ha->memoryMap.region[ci_offset + i].phys_addr_hi;
239 		pm8001_ha->inbnd_q_tbl[i].ci_lower_base_addr	=
240 			pm8001_ha->memoryMap.region[ci_offset + i].phys_addr_lo;
241 		pm8001_ha->inbnd_q_tbl[i].ci_virt		=
242 			pm8001_ha->memoryMap.region[ci_offset + i].virt_ptr;
243 		pm8001_write_32(pm8001_ha->inbnd_q_tbl[i].ci_virt, 0, 0);
244 		offsetib = i * 0x20;
245 		pm8001_ha->inbnd_q_tbl[i].pi_pci_bar		=
246 			get_pci_bar_index(pm8001_mr32(addressib,
247 				(offsetib + 0x14)));
248 		pm8001_ha->inbnd_q_tbl[i].pi_offset		=
249 			pm8001_mr32(addressib, (offsetib + 0x18));
250 		pm8001_ha->inbnd_q_tbl[i].producer_idx		= 0;
251 		pm8001_ha->inbnd_q_tbl[i].consumer_index	= 0;
252 	}
253 	for (i = 0; i < pm8001_ha->max_q_num; i++) {
254 		pm8001_ha->outbnd_q_tbl[i].element_size_cnt	=
255 			PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x01<<30);
256 		pm8001_ha->outbnd_q_tbl[i].upper_base_addr	=
257 			pm8001_ha->memoryMap.region[ob_offset + i].phys_addr_hi;
258 		pm8001_ha->outbnd_q_tbl[i].lower_base_addr	=
259 			pm8001_ha->memoryMap.region[ob_offset + i].phys_addr_lo;
260 		pm8001_ha->outbnd_q_tbl[i].base_virt		=
261 		  (u8 *)pm8001_ha->memoryMap.region[ob_offset + i].virt_ptr;
262 		pm8001_ha->outbnd_q_tbl[i].total_length		=
263 			pm8001_ha->memoryMap.region[ob_offset + i].total_len;
264 		pm8001_ha->outbnd_q_tbl[i].pi_upper_base_addr	=
265 			pm8001_ha->memoryMap.region[pi_offset + i].phys_addr_hi;
266 		pm8001_ha->outbnd_q_tbl[i].pi_lower_base_addr	=
267 			pm8001_ha->memoryMap.region[pi_offset + i].phys_addr_lo;
268 		pm8001_ha->outbnd_q_tbl[i].interrup_vec_cnt_delay	=
269 			0 | (10 << 16) | (i << 24);
270 		pm8001_ha->outbnd_q_tbl[i].pi_virt		=
271 			pm8001_ha->memoryMap.region[pi_offset + i].virt_ptr;
272 		pm8001_write_32(pm8001_ha->outbnd_q_tbl[i].pi_virt, 0, 0);
273 		offsetob = i * 0x24;
274 		pm8001_ha->outbnd_q_tbl[i].ci_pci_bar		=
275 			get_pci_bar_index(pm8001_mr32(addressob,
276 			offsetob + 0x14));
277 		pm8001_ha->outbnd_q_tbl[i].ci_offset		=
278 			pm8001_mr32(addressob, (offsetob + 0x18));
279 		pm8001_ha->outbnd_q_tbl[i].consumer_idx		= 0;
280 		pm8001_ha->outbnd_q_tbl[i].producer_index	= 0;
281 	}
282 }
283 
284 /**
285  * update_main_config_table - update the main default table to the HBA.
286  * @pm8001_ha: our hba card information
287  */
288 static void update_main_config_table(struct pm8001_hba_info *pm8001_ha)
289 {
290 	void __iomem *address = pm8001_ha->main_cfg_tbl_addr;
291 	pm8001_mw32(address, 0x24,
292 		pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_q_nppd_hppd);
293 	pm8001_mw32(address, 0x28,
294 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid0_3);
295 	pm8001_mw32(address, 0x2C,
296 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid4_7);
297 	pm8001_mw32(address, 0x30,
298 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid0_3);
299 	pm8001_mw32(address, 0x34,
300 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid4_7);
301 	pm8001_mw32(address, 0x38,
302 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
303 					outbound_tgt_ITNexus_event_pid0_3);
304 	pm8001_mw32(address, 0x3C,
305 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
306 					outbound_tgt_ITNexus_event_pid4_7);
307 	pm8001_mw32(address, 0x40,
308 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
309 					outbound_tgt_ssp_event_pid0_3);
310 	pm8001_mw32(address, 0x44,
311 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
312 					outbound_tgt_ssp_event_pid4_7);
313 	pm8001_mw32(address, 0x48,
314 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
315 					outbound_tgt_smp_event_pid0_3);
316 	pm8001_mw32(address, 0x4C,
317 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
318 					outbound_tgt_smp_event_pid4_7);
319 	pm8001_mw32(address, 0x50,
320 		pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_event_log_addr);
321 	pm8001_mw32(address, 0x54,
322 		pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_event_log_addr);
323 	pm8001_mw32(address, 0x58,
324 		pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_size);
325 	pm8001_mw32(address, 0x5C,
326 		pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_option);
327 	pm8001_mw32(address, 0x60,
328 		pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_iop_event_log_addr);
329 	pm8001_mw32(address, 0x64,
330 		pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_iop_event_log_addr);
331 	pm8001_mw32(address, 0x68,
332 		pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_size);
333 	pm8001_mw32(address, 0x6C,
334 		pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_option);
335 	pm8001_mw32(address, 0x70,
336 		pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_interrupt);
337 }
338 
339 /**
340  * update_inbnd_queue_table - update the inbound queue table to the HBA.
341  * @pm8001_ha: our hba card information
342  * @number: entry in the queue
343  */
344 static void update_inbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
345 				     int number)
346 {
347 	void __iomem *address = pm8001_ha->inbnd_q_tbl_addr;
348 	u16 offset = number * 0x20;
349 	pm8001_mw32(address, offset + 0x00,
350 		pm8001_ha->inbnd_q_tbl[number].element_pri_size_cnt);
351 	pm8001_mw32(address, offset + 0x04,
352 		pm8001_ha->inbnd_q_tbl[number].upper_base_addr);
353 	pm8001_mw32(address, offset + 0x08,
354 		pm8001_ha->inbnd_q_tbl[number].lower_base_addr);
355 	pm8001_mw32(address, offset + 0x0C,
356 		pm8001_ha->inbnd_q_tbl[number].ci_upper_base_addr);
357 	pm8001_mw32(address, offset + 0x10,
358 		pm8001_ha->inbnd_q_tbl[number].ci_lower_base_addr);
359 }
360 
361 /**
362  * update_outbnd_queue_table - update the outbound queue table to the HBA.
363  * @pm8001_ha: our hba card information
364  * @number: entry in the queue
365  */
366 static void update_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
367 				      int number)
368 {
369 	void __iomem *address = pm8001_ha->outbnd_q_tbl_addr;
370 	u16 offset = number * 0x24;
371 	pm8001_mw32(address, offset + 0x00,
372 		pm8001_ha->outbnd_q_tbl[number].element_size_cnt);
373 	pm8001_mw32(address, offset + 0x04,
374 		pm8001_ha->outbnd_q_tbl[number].upper_base_addr);
375 	pm8001_mw32(address, offset + 0x08,
376 		pm8001_ha->outbnd_q_tbl[number].lower_base_addr);
377 	pm8001_mw32(address, offset + 0x0C,
378 		pm8001_ha->outbnd_q_tbl[number].pi_upper_base_addr);
379 	pm8001_mw32(address, offset + 0x10,
380 		pm8001_ha->outbnd_q_tbl[number].pi_lower_base_addr);
381 	pm8001_mw32(address, offset + 0x1C,
382 		pm8001_ha->outbnd_q_tbl[number].interrup_vec_cnt_delay);
383 }
384 
385 /**
386  * pm8001_bar4_shift - function is called to shift BAR base address
387  * @pm8001_ha : our hba card infomation
388  * @shiftValue : shifting value in memory bar.
389  */
390 int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue)
391 {
392 	u32 regVal;
393 	unsigned long start;
394 
395 	/* program the inbound AXI translation Lower Address */
396 	pm8001_cw32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW, shiftValue);
397 
398 	/* confirm the setting is written */
399 	start = jiffies + HZ; /* 1 sec */
400 	do {
401 		regVal = pm8001_cr32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW);
402 	} while ((regVal != shiftValue) && time_before(jiffies, start));
403 
404 	if (regVal != shiftValue) {
405 		pm8001_dbg(pm8001_ha, INIT,
406 			   "TIMEOUT:SPC_IBW_AXI_TRANSLATION_LOW = 0x%x\n",
407 			   regVal);
408 		return -1;
409 	}
410 	return 0;
411 }
412 
413 /**
414  * mpi_set_phys_g3_with_ssc
415  * @pm8001_ha: our hba card information
416  * @SSCbit: set SSCbit to 0 to disable all phys ssc; 1 to enable all phys ssc.
417  */
418 static void mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha,
419 				     u32 SSCbit)
420 {
421 	u32 offset, i;
422 	unsigned long flags;
423 
424 #define SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR 0x00030000
425 #define SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR 0x00040000
426 #define SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET 0x1074
427 #define SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET 0x1074
428 #define PHY_G3_WITHOUT_SSC_BIT_SHIFT 12
429 #define PHY_G3_WITH_SSC_BIT_SHIFT 13
430 #define SNW3_PHY_CAPABILITIES_PARITY 31
431 
432    /*
433     * Using shifted destination address 0x3_0000:0x1074 + 0x4000*N (N=0:3)
434     * Using shifted destination address 0x4_0000:0x1074 + 0x4000*(N-4) (N=4:7)
435     */
436 	spin_lock_irqsave(&pm8001_ha->lock, flags);
437 	if (-1 == pm8001_bar4_shift(pm8001_ha,
438 				SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR)) {
439 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
440 		return;
441 	}
442 
443 	for (i = 0; i < 4; i++) {
444 		offset = SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET + 0x4000 * i;
445 		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
446 	}
447 	/* shift membase 3 for SAS2_SETTINGS_LOCAL_PHY 4 - 7 */
448 	if (-1 == pm8001_bar4_shift(pm8001_ha,
449 				SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR)) {
450 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
451 		return;
452 	}
453 	for (i = 4; i < 8; i++) {
454 		offset = SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
455 		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
456 	}
457 	/*************************************************************
458 	Change the SSC upspreading value to 0x0 so that upspreading is disabled.
459 	Device MABC SMOD0 Controls
460 	Address: (via MEMBASE-III):
461 	Using shifted destination address 0x0_0000: with Offset 0xD8
462 
463 	31:28 R/W Reserved Do not change
464 	27:24 R/W SAS_SMOD_SPRDUP 0000
465 	23:20 R/W SAS_SMOD_SPRDDN 0000
466 	19:0  R/W  Reserved Do not change
467 	Upon power-up this register will read as 0x8990c016,
468 	and I would like you to change the SAS_SMOD_SPRDUP bits to 0b0000
469 	so that the written value will be 0x8090c016.
470 	This will ensure only down-spreading SSC is enabled on the SPC.
471 	*************************************************************/
472 	pm8001_cr32(pm8001_ha, 2, 0xd8);
473 	pm8001_cw32(pm8001_ha, 2, 0xd8, 0x8000C016);
474 
475 	/*set the shifted destination address to 0x0 to avoid error operation */
476 	pm8001_bar4_shift(pm8001_ha, 0x0);
477 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
478 	return;
479 }
480 
481 /**
482  * mpi_set_open_retry_interval_reg
483  * @pm8001_ha: our hba card information
484  * @interval: interval time for each OPEN_REJECT (RETRY). The units are in 1us.
485  */
486 static void mpi_set_open_retry_interval_reg(struct pm8001_hba_info *pm8001_ha,
487 					    u32 interval)
488 {
489 	u32 offset;
490 	u32 value;
491 	u32 i;
492 	unsigned long flags;
493 
494 #define OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR 0x00030000
495 #define OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR 0x00040000
496 #define OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET 0x30B4
497 #define OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET 0x30B4
498 #define OPEN_RETRY_INTERVAL_REG_MASK 0x0000FFFF
499 
500 	value = interval & OPEN_RETRY_INTERVAL_REG_MASK;
501 	spin_lock_irqsave(&pm8001_ha->lock, flags);
502 	/* shift bar and set the OPEN_REJECT(RETRY) interval time of PHY 0 -3.*/
503 	if (-1 == pm8001_bar4_shift(pm8001_ha,
504 			     OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR)) {
505 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
506 		return;
507 	}
508 	for (i = 0; i < 4; i++) {
509 		offset = OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET + 0x4000 * i;
510 		pm8001_cw32(pm8001_ha, 2, offset, value);
511 	}
512 
513 	if (-1 == pm8001_bar4_shift(pm8001_ha,
514 			     OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR)) {
515 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
516 		return;
517 	}
518 	for (i = 4; i < 8; i++) {
519 		offset = OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
520 		pm8001_cw32(pm8001_ha, 2, offset, value);
521 	}
522 	/*set the shifted destination address to 0x0 to avoid error operation */
523 	pm8001_bar4_shift(pm8001_ha, 0x0);
524 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
525 	return;
526 }
527 
528 /**
529  * mpi_init_check - check firmware initialization status.
530  * @pm8001_ha: our hba card information
531  */
532 static int mpi_init_check(struct pm8001_hba_info *pm8001_ha)
533 {
534 	u32 max_wait_count;
535 	u32 value;
536 	u32 gst_len_mpistate;
537 	/* Write bit0=1 to Inbound DoorBell Register to tell the SPC FW the
538 	table is updated */
539 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_UPDATE);
540 	/* wait until Inbound DoorBell Clear Register toggled */
541 	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
542 	do {
543 		udelay(1);
544 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
545 		value &= SPC_MSGU_CFG_TABLE_UPDATE;
546 	} while ((value != 0) && (--max_wait_count));
547 
548 	if (!max_wait_count)
549 		return -1;
550 	/* check the MPI-State for initialization */
551 	gst_len_mpistate =
552 		pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
553 		GST_GSTLEN_MPIS_OFFSET);
554 	if (GST_MPI_STATE_INIT != (gst_len_mpistate & GST_MPI_STATE_MASK))
555 		return -1;
556 	/* check MPI Initialization error */
557 	gst_len_mpistate = gst_len_mpistate >> 16;
558 	if (0x0000 != gst_len_mpistate)
559 		return -1;
560 	return 0;
561 }
562 
563 /**
564  * check_fw_ready - The LLDD check if the FW is ready, if not, return error.
565  * @pm8001_ha: our hba card information
566  */
567 static int check_fw_ready(struct pm8001_hba_info *pm8001_ha)
568 {
569 	u32 value, value1;
570 	u32 max_wait_count;
571 	/* check error state */
572 	value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
573 	value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
574 	/* check AAP error */
575 	if (SCRATCH_PAD1_ERR == (value & SCRATCH_PAD_STATE_MASK)) {
576 		/* error state */
577 		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
578 		return -1;
579 	}
580 
581 	/* check IOP error */
582 	if (SCRATCH_PAD2_ERR == (value1 & SCRATCH_PAD_STATE_MASK)) {
583 		/* error state */
584 		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3);
585 		return -1;
586 	}
587 
588 	/* bit 4-31 of scratch pad1 should be zeros if it is not
589 	in error state*/
590 	if (value & SCRATCH_PAD1_STATE_MASK) {
591 		/* error case */
592 		pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
593 		return -1;
594 	}
595 
596 	/* bit 2, 4-31 of scratch pad2 should be zeros if it is not
597 	in error state */
598 	if (value1 & SCRATCH_PAD2_STATE_MASK) {
599 		/* error case */
600 		return -1;
601 	}
602 
603 	max_wait_count = 1 * 1000 * 1000;/* 1 sec timeout */
604 
605 	/* wait until scratch pad 1 and 2 registers in ready state  */
606 	do {
607 		udelay(1);
608 		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
609 			& SCRATCH_PAD1_RDY;
610 		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
611 			& SCRATCH_PAD2_RDY;
612 		if ((--max_wait_count) == 0)
613 			return -1;
614 	} while ((value != SCRATCH_PAD1_RDY) || (value1 != SCRATCH_PAD2_RDY));
615 	return 0;
616 }
617 
618 static void init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
619 {
620 	void __iomem *base_addr;
621 	u32	value;
622 	u32	offset;
623 	u32	pcibar;
624 	u32	pcilogic;
625 
626 	value = pm8001_cr32(pm8001_ha, 0, 0x44);
627 	offset = value & 0x03FFFFFF;
628 	pm8001_dbg(pm8001_ha, INIT, "Scratchpad 0 Offset: %x\n", offset);
629 	pcilogic = (value & 0xFC000000) >> 26;
630 	pcibar = get_pci_bar_index(pcilogic);
631 	pm8001_dbg(pm8001_ha, INIT, "Scratchpad 0 PCI BAR: %d\n", pcibar);
632 	pm8001_ha->main_cfg_tbl_addr = base_addr =
633 		pm8001_ha->io_mem[pcibar].memvirtaddr + offset;
634 	pm8001_ha->general_stat_tbl_addr =
635 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x18);
636 	pm8001_ha->inbnd_q_tbl_addr =
637 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x1C);
638 	pm8001_ha->outbnd_q_tbl_addr =
639 		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x20);
640 }
641 
642 /**
643  * pm8001_chip_init - the main init function that initialize whole PM8001 chip.
644  * @pm8001_ha: our hba card information
645  */
646 static int pm8001_chip_init(struct pm8001_hba_info *pm8001_ha)
647 {
648 	u32 i = 0;
649 	u16 deviceid;
650 	pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
651 	/* 8081 controllers need BAR shift to access MPI space
652 	* as this is shared with BIOS data */
653 	if (deviceid == 0x8081 || deviceid == 0x0042) {
654 		if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_SM_BASE)) {
655 			pm8001_dbg(pm8001_ha, FAIL,
656 				   "Shift Bar4 to 0x%x failed\n",
657 				   GSM_SM_BASE);
658 			return -1;
659 		}
660 	}
661 	/* check the firmware status */
662 	if (-1 == check_fw_ready(pm8001_ha)) {
663 		pm8001_dbg(pm8001_ha, FAIL, "Firmware is not ready!\n");
664 		return -EBUSY;
665 	}
666 
667 	/* Initialize pci space address eg: mpi offset */
668 	init_pci_device_addresses(pm8001_ha);
669 	init_default_table_values(pm8001_ha);
670 	read_main_config_table(pm8001_ha);
671 	read_general_status_table(pm8001_ha);
672 	read_inbnd_queue_table(pm8001_ha);
673 	read_outbnd_queue_table(pm8001_ha);
674 	/* update main config table ,inbound table and outbound table */
675 	update_main_config_table(pm8001_ha);
676 	for (i = 0; i < pm8001_ha->max_q_num; i++)
677 		update_inbnd_queue_table(pm8001_ha, i);
678 	for (i = 0; i < pm8001_ha->max_q_num; i++)
679 		update_outbnd_queue_table(pm8001_ha, i);
680 	/* 8081 controller donot require these operations */
681 	if (deviceid != 0x8081 && deviceid != 0x0042) {
682 		mpi_set_phys_g3_with_ssc(pm8001_ha, 0);
683 		/* 7->130ms, 34->500ms, 119->1.5s */
684 		mpi_set_open_retry_interval_reg(pm8001_ha, 119);
685 	}
686 	/* notify firmware update finished and check initialization status */
687 	if (0 == mpi_init_check(pm8001_ha)) {
688 		pm8001_dbg(pm8001_ha, INIT, "MPI initialize successful!\n");
689 	} else
690 		return -EBUSY;
691 	/*This register is a 16-bit timer with a resolution of 1us. This is the
692 	timer used for interrupt delay/coalescing in the PCIe Application Layer.
693 	Zero is not a valid value. A value of 1 in the register will cause the
694 	interrupts to be normal. A value greater than 1 will cause coalescing
695 	delays.*/
696 	pm8001_cw32(pm8001_ha, 1, 0x0033c0, 0x1);
697 	pm8001_cw32(pm8001_ha, 1, 0x0033c4, 0x0);
698 	return 0;
699 }
700 
701 static int mpi_uninit_check(struct pm8001_hba_info *pm8001_ha)
702 {
703 	u32 max_wait_count;
704 	u32 value;
705 	u32 gst_len_mpistate;
706 	u16 deviceid;
707 	pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
708 	if (deviceid == 0x8081 || deviceid == 0x0042) {
709 		if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_SM_BASE)) {
710 			pm8001_dbg(pm8001_ha, FAIL,
711 				   "Shift Bar4 to 0x%x failed\n",
712 				   GSM_SM_BASE);
713 			return -1;
714 		}
715 	}
716 	init_pci_device_addresses(pm8001_ha);
717 	/* Write bit1=1 to Inbound DoorBell Register to tell the SPC FW the
718 	table is stop */
719 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_RESET);
720 
721 	/* wait until Inbound DoorBell Clear Register toggled */
722 	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
723 	do {
724 		udelay(1);
725 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
726 		value &= SPC_MSGU_CFG_TABLE_RESET;
727 	} while ((value != 0) && (--max_wait_count));
728 
729 	if (!max_wait_count) {
730 		pm8001_dbg(pm8001_ha, FAIL, "TIMEOUT:IBDB value/=0x%x\n",
731 			   value);
732 		return -1;
733 	}
734 
735 	/* check the MPI-State for termination in progress */
736 	/* wait until Inbound DoorBell Clear Register toggled */
737 	max_wait_count = 1 * 1000 * 1000;  /* 1 sec */
738 	do {
739 		udelay(1);
740 		gst_len_mpistate =
741 			pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
742 			GST_GSTLEN_MPIS_OFFSET);
743 		if (GST_MPI_STATE_UNINIT ==
744 			(gst_len_mpistate & GST_MPI_STATE_MASK))
745 			break;
746 	} while (--max_wait_count);
747 	if (!max_wait_count) {
748 		pm8001_dbg(pm8001_ha, FAIL, " TIME OUT MPI State = 0x%x\n",
749 			   gst_len_mpistate & GST_MPI_STATE_MASK);
750 		return -1;
751 	}
752 	return 0;
753 }
754 
755 /**
756  * soft_reset_ready_check - Function to check FW is ready for soft reset.
757  * @pm8001_ha: our hba card information
758  */
759 static u32 soft_reset_ready_check(struct pm8001_hba_info *pm8001_ha)
760 {
761 	u32 regVal, regVal1, regVal2;
762 	if (mpi_uninit_check(pm8001_ha) != 0) {
763 		pm8001_dbg(pm8001_ha, FAIL, "MPI state is not ready\n");
764 		return -1;
765 	}
766 	/* read the scratch pad 2 register bit 2 */
767 	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
768 		& SCRATCH_PAD2_FWRDY_RST;
769 	if (regVal == SCRATCH_PAD2_FWRDY_RST) {
770 		pm8001_dbg(pm8001_ha, INIT, "Firmware is ready for reset.\n");
771 	} else {
772 		unsigned long flags;
773 		/* Trigger NMI twice via RB6 */
774 		spin_lock_irqsave(&pm8001_ha->lock, flags);
775 		if (-1 == pm8001_bar4_shift(pm8001_ha, RB6_ACCESS_REG)) {
776 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
777 			pm8001_dbg(pm8001_ha, FAIL,
778 				   "Shift Bar4 to 0x%x failed\n",
779 				   RB6_ACCESS_REG);
780 			return -1;
781 		}
782 		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET,
783 			RB6_MAGIC_NUMBER_RST);
784 		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET, RB6_MAGIC_NUMBER_RST);
785 		/* wait for 100 ms */
786 		mdelay(100);
787 		regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2) &
788 			SCRATCH_PAD2_FWRDY_RST;
789 		if (regVal != SCRATCH_PAD2_FWRDY_RST) {
790 			regVal1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
791 			regVal2 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
792 			pm8001_dbg(pm8001_ha, FAIL, "TIMEOUT:MSGU_SCRATCH_PAD1=0x%x, MSGU_SCRATCH_PAD2=0x%x\n",
793 				   regVal1, regVal2);
794 			pm8001_dbg(pm8001_ha, FAIL,
795 				   "SCRATCH_PAD0 value = 0x%x\n",
796 				   pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0));
797 			pm8001_dbg(pm8001_ha, FAIL,
798 				   "SCRATCH_PAD3 value = 0x%x\n",
799 				   pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3));
800 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
801 			return -1;
802 		}
803 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
804 	}
805 	return 0;
806 }
807 
808 /**
809  * pm8001_chip_soft_rst - soft reset the PM8001 chip, so that the clear all
810  * the FW register status to the originated status.
811  * @pm8001_ha: our hba card information
812  */
813 static int
814 pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha)
815 {
816 	u32	regVal, toggleVal;
817 	u32	max_wait_count;
818 	u32	regVal1, regVal2, regVal3;
819 	u32	signature = 0x252acbcd; /* for host scratch pad0 */
820 	unsigned long flags;
821 
822 	/* step1: Check FW is ready for soft reset */
823 	if (soft_reset_ready_check(pm8001_ha) != 0) {
824 		pm8001_dbg(pm8001_ha, FAIL, "FW is not ready\n");
825 		return -1;
826 	}
827 
828 	/* step 2: clear NMI status register on AAP1 and IOP, write the same
829 	value to clear */
830 	/* map 0x60000 to BAR4(0x20), BAR2(win) */
831 	spin_lock_irqsave(&pm8001_ha->lock, flags);
832 	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_AAP1_ADDR_BASE)) {
833 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
834 		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
835 			   MBIC_AAP1_ADDR_BASE);
836 		return -1;
837 	}
838 	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP);
839 	pm8001_dbg(pm8001_ha, INIT, "MBIC - NMI Enable VPE0 (IOP)= 0x%x\n",
840 		   regVal);
841 	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP, 0x0);
842 	/* map 0x70000 to BAR4(0x20), BAR2(win) */
843 	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_IOP_ADDR_BASE)) {
844 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
845 		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
846 			   MBIC_IOP_ADDR_BASE);
847 		return -1;
848 	}
849 	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1);
850 	pm8001_dbg(pm8001_ha, INIT, "MBIC - NMI Enable VPE0 (AAP1)= 0x%x\n",
851 		   regVal);
852 	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1, 0x0);
853 
854 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE);
855 	pm8001_dbg(pm8001_ha, INIT, "PCIE -Event Interrupt Enable = 0x%x\n",
856 		   regVal);
857 	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE, 0x0);
858 
859 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT);
860 	pm8001_dbg(pm8001_ha, INIT, "PCIE - Event Interrupt  = 0x%x\n",
861 		   regVal);
862 	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT, regVal);
863 
864 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE);
865 	pm8001_dbg(pm8001_ha, INIT, "PCIE -Error Interrupt Enable = 0x%x\n",
866 		   regVal);
867 	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE, 0x0);
868 
869 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT);
870 	pm8001_dbg(pm8001_ha, INIT, "PCIE - Error Interrupt = 0x%x\n", regVal);
871 	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT, regVal);
872 
873 	/* read the scratch pad 1 register bit 2 */
874 	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
875 		& SCRATCH_PAD1_RST;
876 	toggleVal = regVal ^ SCRATCH_PAD1_RST;
877 
878 	/* set signature in host scratch pad0 register to tell SPC that the
879 	host performs the soft reset */
880 	pm8001_cw32(pm8001_ha, 0, MSGU_HOST_SCRATCH_PAD_0, signature);
881 
882 	/* read required registers for confirmming */
883 	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
884 	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
885 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
886 		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
887 			   GSM_ADDR_BASE);
888 		return -1;
889 	}
890 	pm8001_dbg(pm8001_ha, INIT,
891 		   "GSM 0x0(0x00007b88)-GSM Configuration and Reset = 0x%x\n",
892 		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));
893 
894 	/* step 3: host read GSM Configuration and Reset register */
895 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
896 	/* Put those bits to low */
897 	/* GSM XCBI offset = 0x70 0000
898 	0x00 Bit 13 COM_SLV_SW_RSTB 1
899 	0x00 Bit 12 QSSP_SW_RSTB 1
900 	0x00 Bit 11 RAAE_SW_RSTB 1
901 	0x00 Bit 9 RB_1_SW_RSTB 1
902 	0x00 Bit 8 SM_SW_RSTB 1
903 	*/
904 	regVal &= ~(0x00003b00);
905 	/* host write GSM Configuration and Reset register */
906 	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
907 	pm8001_dbg(pm8001_ha, INIT,
908 		   "GSM 0x0 (0x00007b88 ==> 0x00004088) - GSM Configuration and Reset is set to = 0x%x\n",
909 		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));
910 
911 	/* step 4: */
912 	/* disable GSM - Read Address Parity Check */
913 	regVal1 = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
914 	pm8001_dbg(pm8001_ha, INIT,
915 		   "GSM 0x700038 - Read Address Parity Check Enable = 0x%x\n",
916 		   regVal1);
917 	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, 0x0);
918 	pm8001_dbg(pm8001_ha, INIT,
919 		   "GSM 0x700038 - Read Address Parity Check Enable is set to = 0x%x\n",
920 		   pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK));
921 
922 	/* disable GSM - Write Address Parity Check */
923 	regVal2 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
924 	pm8001_dbg(pm8001_ha, INIT,
925 		   "GSM 0x700040 - Write Address Parity Check Enable = 0x%x\n",
926 		   regVal2);
927 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, 0x0);
928 	pm8001_dbg(pm8001_ha, INIT,
929 		   "GSM 0x700040 - Write Address Parity Check Enable is set to = 0x%x\n",
930 		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK));
931 
932 	/* disable GSM - Write Data Parity Check */
933 	regVal3 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
934 	pm8001_dbg(pm8001_ha, INIT, "GSM 0x300048 - Write Data Parity Check Enable = 0x%x\n",
935 		   regVal3);
936 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, 0x0);
937 	pm8001_dbg(pm8001_ha, INIT,
938 		   "GSM 0x300048 - Write Data Parity Check Enable is set to = 0x%x\n",
939 		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK));
940 
941 	/* step 5: delay 10 usec */
942 	udelay(10);
943 	/* step 5-b: set GPIO-0 output control to tristate anyway */
944 	if (-1 == pm8001_bar4_shift(pm8001_ha, GPIO_ADDR_BASE)) {
945 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
946 		pm8001_dbg(pm8001_ha, INIT, "Shift Bar4 to 0x%x failed\n",
947 			   GPIO_ADDR_BASE);
948 		return -1;
949 	}
950 	regVal = pm8001_cr32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET);
951 	pm8001_dbg(pm8001_ha, INIT, "GPIO Output Control Register: = 0x%x\n",
952 		   regVal);
953 	/* set GPIO-0 output control to tri-state */
954 	regVal &= 0xFFFFFFFC;
955 	pm8001_cw32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET, regVal);
956 
957 	/* Step 6: Reset the IOP and AAP1 */
958 	/* map 0x00000 to BAR4(0x20), BAR2(win) */
959 	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
960 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
961 		pm8001_dbg(pm8001_ha, FAIL, "SPC Shift Bar4 to 0x%x failed\n",
962 			   SPC_TOP_LEVEL_ADDR_BASE);
963 		return -1;
964 	}
965 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
966 	pm8001_dbg(pm8001_ha, INIT, "Top Register before resetting IOP/AAP1:= 0x%x\n",
967 		   regVal);
968 	regVal &= ~(SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
969 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
970 
971 	/* step 7: Reset the BDMA/OSSP */
972 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
973 	pm8001_dbg(pm8001_ha, INIT, "Top Register before resetting BDMA/OSSP: = 0x%x\n",
974 		   regVal);
975 	regVal &= ~(SPC_REG_RESET_BDMA_CORE | SPC_REG_RESET_OSSP);
976 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
977 
978 	/* step 8: delay 10 usec */
979 	udelay(10);
980 
981 	/* step 9: bring the BDMA and OSSP out of reset */
982 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
983 	pm8001_dbg(pm8001_ha, INIT,
984 		   "Top Register before bringing up BDMA/OSSP:= 0x%x\n",
985 		   regVal);
986 	regVal |= (SPC_REG_RESET_BDMA_CORE | SPC_REG_RESET_OSSP);
987 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
988 
989 	/* step 10: delay 10 usec */
990 	udelay(10);
991 
992 	/* step 11: reads and sets the GSM Configuration and Reset Register */
993 	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
994 	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
995 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
996 		pm8001_dbg(pm8001_ha, FAIL, "SPC Shift Bar4 to 0x%x failed\n",
997 			   GSM_ADDR_BASE);
998 		return -1;
999 	}
1000 	pm8001_dbg(pm8001_ha, INIT,
1001 		   "GSM 0x0 (0x00007b88)-GSM Configuration and Reset = 0x%x\n",
1002 		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));
1003 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
1004 	/* Put those bits to high */
1005 	/* GSM XCBI offset = 0x70 0000
1006 	0x00 Bit 13 COM_SLV_SW_RSTB 1
1007 	0x00 Bit 12 QSSP_SW_RSTB 1
1008 	0x00 Bit 11 RAAE_SW_RSTB 1
1009 	0x00 Bit 9   RB_1_SW_RSTB 1
1010 	0x00 Bit 8   SM_SW_RSTB 1
1011 	*/
1012 	regVal |= (GSM_CONFIG_RESET_VALUE);
1013 	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
1014 	pm8001_dbg(pm8001_ha, INIT, "GSM (0x00004088 ==> 0x00007b88) - GSM Configuration and Reset is set to = 0x%x\n",
1015 		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));
1016 
1017 	/* step 12: Restore GSM - Read Address Parity Check */
1018 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
1019 	/* just for debugging */
1020 	pm8001_dbg(pm8001_ha, INIT,
1021 		   "GSM 0x700038 - Read Address Parity Check Enable = 0x%x\n",
1022 		   regVal);
1023 	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, regVal1);
1024 	pm8001_dbg(pm8001_ha, INIT, "GSM 0x700038 - Read Address Parity Check Enable is set to = 0x%x\n",
1025 		   pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK));
1026 	/* Restore GSM - Write Address Parity Check */
1027 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
1028 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, regVal2);
1029 	pm8001_dbg(pm8001_ha, INIT,
1030 		   "GSM 0x700040 - Write Address Parity Check Enable is set to = 0x%x\n",
1031 		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK));
1032 	/* Restore GSM - Write Data Parity Check */
1033 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
1034 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, regVal3);
1035 	pm8001_dbg(pm8001_ha, INIT,
1036 		   "GSM 0x700048 - Write Data Parity Check Enable is set to = 0x%x\n",
1037 		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK));
1038 
1039 	/* step 13: bring the IOP and AAP1 out of reset */
1040 	/* map 0x00000 to BAR4(0x20), BAR2(win) */
1041 	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
1042 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1043 		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
1044 			   SPC_TOP_LEVEL_ADDR_BASE);
1045 		return -1;
1046 	}
1047 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
1048 	regVal |= (SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
1049 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
1050 
1051 	/* step 14: delay 10 usec - Normal Mode */
1052 	udelay(10);
1053 	/* check Soft Reset Normal mode or Soft Reset HDA mode */
1054 	if (signature == SPC_SOFT_RESET_SIGNATURE) {
1055 		/* step 15 (Normal Mode): wait until scratch pad1 register
1056 		bit 2 toggled */
1057 		max_wait_count = 2 * 1000 * 1000;/* 2 sec */
1058 		do {
1059 			udelay(1);
1060 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1) &
1061 				SCRATCH_PAD1_RST;
1062 		} while ((regVal != toggleVal) && (--max_wait_count));
1063 
1064 		if (!max_wait_count) {
1065 			regVal = pm8001_cr32(pm8001_ha, 0,
1066 				MSGU_SCRATCH_PAD_1);
1067 			pm8001_dbg(pm8001_ha, FAIL, "TIMEOUT : ToggleVal 0x%x,MSGU_SCRATCH_PAD1 = 0x%x\n",
1068 				   toggleVal, regVal);
1069 			pm8001_dbg(pm8001_ha, FAIL,
1070 				   "SCRATCH_PAD0 value = 0x%x\n",
1071 				   pm8001_cr32(pm8001_ha, 0,
1072 					       MSGU_SCRATCH_PAD_0));
1073 			pm8001_dbg(pm8001_ha, FAIL,
1074 				   "SCRATCH_PAD2 value = 0x%x\n",
1075 				   pm8001_cr32(pm8001_ha, 0,
1076 					       MSGU_SCRATCH_PAD_2));
1077 			pm8001_dbg(pm8001_ha, FAIL,
1078 				   "SCRATCH_PAD3 value = 0x%x\n",
1079 				   pm8001_cr32(pm8001_ha, 0,
1080 					       MSGU_SCRATCH_PAD_3));
1081 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1082 			return -1;
1083 		}
1084 
1085 		/* step 16 (Normal) - Clear ODMR and ODCR */
1086 		pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
1087 		pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);
1088 
1089 		/* step 17 (Normal Mode): wait for the FW and IOP to get
1090 		ready - 1 sec timeout */
1091 		/* Wait for the SPC Configuration Table to be ready */
1092 		if (check_fw_ready(pm8001_ha) == -1) {
1093 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
1094 			/* return error if MPI Configuration Table not ready */
1095 			pm8001_dbg(pm8001_ha, INIT,
1096 				   "FW not ready SCRATCH_PAD1 = 0x%x\n",
1097 				   regVal);
1098 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
1099 			/* return error if MPI Configuration Table not ready */
1100 			pm8001_dbg(pm8001_ha, INIT,
1101 				   "FW not ready SCRATCH_PAD2 = 0x%x\n",
1102 				   regVal);
1103 			pm8001_dbg(pm8001_ha, INIT,
1104 				   "SCRATCH_PAD0 value = 0x%x\n",
1105 				   pm8001_cr32(pm8001_ha, 0,
1106 					       MSGU_SCRATCH_PAD_0));
1107 			pm8001_dbg(pm8001_ha, INIT,
1108 				   "SCRATCH_PAD3 value = 0x%x\n",
1109 				   pm8001_cr32(pm8001_ha, 0,
1110 					       MSGU_SCRATCH_PAD_3));
1111 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1112 			return -1;
1113 		}
1114 	}
1115 	pm8001_bar4_shift(pm8001_ha, 0);
1116 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1117 
1118 	pm8001_dbg(pm8001_ha, INIT, "SPC soft reset Complete\n");
1119 	return 0;
1120 }
1121 
1122 static void pm8001_hw_chip_rst(struct pm8001_hba_info *pm8001_ha)
1123 {
1124 	u32 i;
1125 	u32 regVal;
1126 	pm8001_dbg(pm8001_ha, INIT, "chip reset start\n");
1127 
1128 	/* do SPC chip reset. */
1129 	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
1130 	regVal &= ~(SPC_REG_RESET_DEVICE);
1131 	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);
1132 
1133 	/* delay 10 usec */
1134 	udelay(10);
1135 
1136 	/* bring chip reset out of reset */
1137 	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
1138 	regVal |= SPC_REG_RESET_DEVICE;
1139 	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);
1140 
1141 	/* delay 10 usec */
1142 	udelay(10);
1143 
1144 	/* wait for 20 msec until the firmware gets reloaded */
1145 	i = 20;
1146 	do {
1147 		mdelay(1);
1148 	} while ((--i) != 0);
1149 
1150 	pm8001_dbg(pm8001_ha, INIT, "chip reset finished\n");
1151 }
1152 
1153 /**
1154  * pm8001_chip_iounmap - which maped when initialized.
1155  * @pm8001_ha: our hba card information
1156  */
1157 void pm8001_chip_iounmap(struct pm8001_hba_info *pm8001_ha)
1158 {
1159 	s8 bar, logical = 0;
1160 	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
1161 		/*
1162 		** logical BARs for SPC:
1163 		** bar 0 and 1 - logical BAR0
1164 		** bar 2 and 3 - logical BAR1
1165 		** bar4 - logical BAR2
1166 		** bar5 - logical BAR3
1167 		** Skip the appropriate assignments:
1168 		*/
1169 		if ((bar == 1) || (bar == 3))
1170 			continue;
1171 		if (pm8001_ha->io_mem[logical].memvirtaddr) {
1172 			iounmap(pm8001_ha->io_mem[logical].memvirtaddr);
1173 			logical++;
1174 		}
1175 	}
1176 }
1177 
1178 #ifndef PM8001_USE_MSIX
1179 /**
1180  * pm8001_chip_intx_interrupt_enable - enable PM8001 chip interrupt
1181  * @pm8001_ha: our hba card information
1182  */
1183 static void
1184 pm8001_chip_intx_interrupt_enable(struct pm8001_hba_info *pm8001_ha)
1185 {
1186 	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);
1187 	pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
1188 }
1189 
1190  /**
1191   * pm8001_chip_intx_interrupt_disable- disable PM8001 chip interrupt
1192   * @pm8001_ha: our hba card information
1193   */
1194 static void
1195 pm8001_chip_intx_interrupt_disable(struct pm8001_hba_info *pm8001_ha)
1196 {
1197 	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_MASK_ALL);
1198 }
1199 
1200 #else
1201 
1202 /**
1203  * pm8001_chip_msix_interrupt_enable - enable PM8001 chip interrupt
1204  * @pm8001_ha: our hba card information
1205  * @int_vec_idx: interrupt number to enable
1206  */
1207 static void
1208 pm8001_chip_msix_interrupt_enable(struct pm8001_hba_info *pm8001_ha,
1209 	u32 int_vec_idx)
1210 {
1211 	u32 msi_index;
1212 	u32 value;
1213 	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
1214 	msi_index += MSIX_TABLE_BASE;
1215 	pm8001_cw32(pm8001_ha, 0, msi_index, MSIX_INTERRUPT_ENABLE);
1216 	value = (1 << int_vec_idx);
1217 	pm8001_cw32(pm8001_ha, 0,  MSGU_ODCR, value);
1218 
1219 }
1220 
1221 /**
1222  * pm8001_chip_msix_interrupt_disable - disable PM8001 chip interrupt
1223  * @pm8001_ha: our hba card information
1224  * @int_vec_idx: interrupt number to disable
1225  */
1226 static void
1227 pm8001_chip_msix_interrupt_disable(struct pm8001_hba_info *pm8001_ha,
1228 	u32 int_vec_idx)
1229 {
1230 	u32 msi_index;
1231 	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
1232 	msi_index += MSIX_TABLE_BASE;
1233 	pm8001_cw32(pm8001_ha, 0,  msi_index, MSIX_INTERRUPT_DISABLE);
1234 }
1235 #endif
1236 
1237 /**
1238  * pm8001_chip_interrupt_enable - enable PM8001 chip interrupt
1239  * @pm8001_ha: our hba card information
1240  * @vec: unused
1241  */
1242 static void
1243 pm8001_chip_interrupt_enable(struct pm8001_hba_info *pm8001_ha, u8 vec)
1244 {
1245 #ifdef PM8001_USE_MSIX
1246 	pm8001_chip_msix_interrupt_enable(pm8001_ha, 0);
1247 #else
1248 	pm8001_chip_intx_interrupt_enable(pm8001_ha);
1249 #endif
1250 }
1251 
1252 /**
1253  * pm8001_chip_interrupt_disable - disable PM8001 chip interrupt
1254  * @pm8001_ha: our hba card information
1255  * @vec: unused
1256  */
1257 static void
1258 pm8001_chip_interrupt_disable(struct pm8001_hba_info *pm8001_ha, u8 vec)
1259 {
1260 #ifdef PM8001_USE_MSIX
1261 	pm8001_chip_msix_interrupt_disable(pm8001_ha, 0);
1262 #else
1263 	pm8001_chip_intx_interrupt_disable(pm8001_ha);
1264 #endif
1265 }
1266 
1267 /**
1268  * pm8001_mpi_msg_free_get - get the free message buffer for transfer
1269  * inbound queue.
1270  * @circularQ: the inbound queue  we want to transfer to HBA.
1271  * @messageSize: the message size of this transfer, normally it is 64 bytes
1272  * @messagePtr: the pointer to message.
1273  */
1274 int pm8001_mpi_msg_free_get(struct inbound_queue_table *circularQ,
1275 			    u16 messageSize, void **messagePtr)
1276 {
1277 	u32 offset, consumer_index;
1278 	struct mpi_msg_hdr *msgHeader;
1279 	u8 bcCount = 1; /* only support single buffer */
1280 
1281 	/* Checks is the requested message size can be allocated in this queue*/
1282 	if (messageSize > IOMB_SIZE_SPCV) {
1283 		*messagePtr = NULL;
1284 		return -1;
1285 	}
1286 
1287 	/* Stores the new consumer index */
1288 	consumer_index = pm8001_read_32(circularQ->ci_virt);
1289 	circularQ->consumer_index = cpu_to_le32(consumer_index);
1290 	if (((circularQ->producer_idx + bcCount) % PM8001_MPI_QUEUE) ==
1291 		le32_to_cpu(circularQ->consumer_index)) {
1292 		*messagePtr = NULL;
1293 		return -1;
1294 	}
1295 	/* get memory IOMB buffer address */
1296 	offset = circularQ->producer_idx * messageSize;
1297 	/* increment to next bcCount element */
1298 	circularQ->producer_idx = (circularQ->producer_idx + bcCount)
1299 				% PM8001_MPI_QUEUE;
1300 	/* Adds that distance to the base of the region virtual address plus
1301 	the message header size*/
1302 	msgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt	+ offset);
1303 	*messagePtr = ((void *)msgHeader) + sizeof(struct mpi_msg_hdr);
1304 	return 0;
1305 }
1306 
1307 /**
1308  * pm8001_mpi_build_cmd- build the message queue for transfer, update the PI to
1309  * FW to tell the fw to get this message from IOMB.
1310  * @pm8001_ha: our hba card information
1311  * @circularQ: the inbound queue we want to transfer to HBA.
1312  * @opCode: the operation code represents commands which LLDD and fw recognized.
1313  * @payload: the command payload of each operation command.
1314  * @nb: size in bytes of the command payload
1315  * @responseQueue: queue to interrupt on w/ command response (if any)
1316  */
1317 int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
1318 			 struct inbound_queue_table *circularQ,
1319 			 u32 opCode, void *payload, size_t nb,
1320 			 u32 responseQueue)
1321 {
1322 	u32 Header = 0, hpriority = 0, bc = 1, category = 0x02;
1323 	void *pMessage;
1324 	unsigned long flags;
1325 	int q_index = circularQ - pm8001_ha->inbnd_q_tbl;
1326 	int rv = -1;
1327 
1328 	WARN_ON(q_index >= PM8001_MAX_INB_NUM);
1329 	spin_lock_irqsave(&circularQ->iq_lock, flags);
1330 	rv = pm8001_mpi_msg_free_get(circularQ, pm8001_ha->iomb_size,
1331 			&pMessage);
1332 	if (rv < 0) {
1333 		pm8001_dbg(pm8001_ha, IO, "No free mpi buffer\n");
1334 		rv = -ENOMEM;
1335 		goto done;
1336 	}
1337 
1338 	if (nb > (pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr)))
1339 		nb = pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr);
1340 	memcpy(pMessage, payload, nb);
1341 	if (nb + sizeof(struct mpi_msg_hdr) < pm8001_ha->iomb_size)
1342 		memset(pMessage + nb, 0, pm8001_ha->iomb_size -
1343 				(nb + sizeof(struct mpi_msg_hdr)));
1344 
1345 	/*Build the header*/
1346 	Header = ((1 << 31) | (hpriority << 30) | ((bc & 0x1f) << 24)
1347 		| ((responseQueue & 0x3F) << 16)
1348 		| ((category & 0xF) << 12) | (opCode & 0xFFF));
1349 
1350 	pm8001_write_32((pMessage - 4), 0, cpu_to_le32(Header));
1351 	/*Update the PI to the firmware*/
1352 	pm8001_cw32(pm8001_ha, circularQ->pi_pci_bar,
1353 		circularQ->pi_offset, circularQ->producer_idx);
1354 	pm8001_dbg(pm8001_ha, DEVIO,
1355 		   "INB Q %x OPCODE:%x , UPDATED PI=%d CI=%d\n",
1356 		   responseQueue, opCode, circularQ->producer_idx,
1357 		   circularQ->consumer_index);
1358 done:
1359 	spin_unlock_irqrestore(&circularQ->iq_lock, flags);
1360 	return rv;
1361 }
1362 
1363 u32 pm8001_mpi_msg_free_set(struct pm8001_hba_info *pm8001_ha, void *pMsg,
1364 			    struct outbound_queue_table *circularQ, u8 bc)
1365 {
1366 	u32 producer_index;
1367 	struct mpi_msg_hdr *msgHeader;
1368 	struct mpi_msg_hdr *pOutBoundMsgHeader;
1369 
1370 	msgHeader = (struct mpi_msg_hdr *)(pMsg - sizeof(struct mpi_msg_hdr));
1371 	pOutBoundMsgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt +
1372 				circularQ->consumer_idx * pm8001_ha->iomb_size);
1373 	if (pOutBoundMsgHeader != msgHeader) {
1374 		pm8001_dbg(pm8001_ha, FAIL,
1375 			   "consumer_idx = %d msgHeader = %p\n",
1376 			   circularQ->consumer_idx, msgHeader);
1377 
1378 		/* Update the producer index from SPC */
1379 		producer_index = pm8001_read_32(circularQ->pi_virt);
1380 		circularQ->producer_index = cpu_to_le32(producer_index);
1381 		pm8001_dbg(pm8001_ha, FAIL,
1382 			   "consumer_idx = %d producer_index = %dmsgHeader = %p\n",
1383 			   circularQ->consumer_idx,
1384 			   circularQ->producer_index, msgHeader);
1385 		return 0;
1386 	}
1387 	/* free the circular queue buffer elements associated with the message*/
1388 	circularQ->consumer_idx = (circularQ->consumer_idx + bc)
1389 				% PM8001_MPI_QUEUE;
1390 	/* update the CI of outbound queue */
1391 	pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar, circularQ->ci_offset,
1392 		circularQ->consumer_idx);
1393 	/* Update the producer index from SPC*/
1394 	producer_index = pm8001_read_32(circularQ->pi_virt);
1395 	circularQ->producer_index = cpu_to_le32(producer_index);
1396 	pm8001_dbg(pm8001_ha, IO, " CI=%d PI=%d\n",
1397 		   circularQ->consumer_idx, circularQ->producer_index);
1398 	return 0;
1399 }
1400 
1401 /**
1402  * pm8001_mpi_msg_consume- get the MPI message from outbound queue
1403  * message table.
1404  * @pm8001_ha: our hba card information
1405  * @circularQ: the outbound queue  table.
1406  * @messagePtr1: the message contents of this outbound message.
1407  * @pBC: the message size.
1408  */
1409 u32 pm8001_mpi_msg_consume(struct pm8001_hba_info *pm8001_ha,
1410 			   struct outbound_queue_table *circularQ,
1411 			   void **messagePtr1, u8 *pBC)
1412 {
1413 	struct mpi_msg_hdr	*msgHeader;
1414 	__le32	msgHeader_tmp;
1415 	u32 header_tmp;
1416 	do {
1417 		/* If there are not-yet-delivered messages ... */
1418 		if (le32_to_cpu(circularQ->producer_index)
1419 			!= circularQ->consumer_idx) {
1420 			/*Get the pointer to the circular queue buffer element*/
1421 			msgHeader = (struct mpi_msg_hdr *)
1422 				(circularQ->base_virt +
1423 				circularQ->consumer_idx * pm8001_ha->iomb_size);
1424 			/* read header */
1425 			header_tmp = pm8001_read_32(msgHeader);
1426 			msgHeader_tmp = cpu_to_le32(header_tmp);
1427 			pm8001_dbg(pm8001_ha, DEVIO,
1428 				   "outbound opcode msgheader:%x ci=%d pi=%d\n",
1429 				   msgHeader_tmp, circularQ->consumer_idx,
1430 				   circularQ->producer_index);
1431 			if (0 != (le32_to_cpu(msgHeader_tmp) & 0x80000000)) {
1432 				if (OPC_OUB_SKIP_ENTRY !=
1433 					(le32_to_cpu(msgHeader_tmp) & 0xfff)) {
1434 					*messagePtr1 =
1435 						((u8 *)msgHeader) +
1436 						sizeof(struct mpi_msg_hdr);
1437 					*pBC = (u8)((le32_to_cpu(msgHeader_tmp)
1438 						>> 24) & 0x1f);
1439 					pm8001_dbg(pm8001_ha, IO,
1440 						   ": CI=%d PI=%d msgHeader=%x\n",
1441 						   circularQ->consumer_idx,
1442 						   circularQ->producer_index,
1443 						   msgHeader_tmp);
1444 					return MPI_IO_STATUS_SUCCESS;
1445 				} else {
1446 					circularQ->consumer_idx =
1447 						(circularQ->consumer_idx +
1448 						((le32_to_cpu(msgHeader_tmp)
1449 						 >> 24) & 0x1f))
1450 							% PM8001_MPI_QUEUE;
1451 					msgHeader_tmp = 0;
1452 					pm8001_write_32(msgHeader, 0, 0);
1453 					/* update the CI of outbound queue */
1454 					pm8001_cw32(pm8001_ha,
1455 						circularQ->ci_pci_bar,
1456 						circularQ->ci_offset,
1457 						circularQ->consumer_idx);
1458 				}
1459 			} else {
1460 				circularQ->consumer_idx =
1461 					(circularQ->consumer_idx +
1462 					((le32_to_cpu(msgHeader_tmp) >> 24) &
1463 					0x1f)) % PM8001_MPI_QUEUE;
1464 				msgHeader_tmp = 0;
1465 				pm8001_write_32(msgHeader, 0, 0);
1466 				/* update the CI of outbound queue */
1467 				pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar,
1468 					circularQ->ci_offset,
1469 					circularQ->consumer_idx);
1470 				return MPI_IO_STATUS_FAIL;
1471 			}
1472 		} else {
1473 			u32 producer_index;
1474 			void *pi_virt = circularQ->pi_virt;
1475 			/* spurious interrupt during setup if
1476 			 * kexec-ing and driver doing a doorbell access
1477 			 * with the pre-kexec oq interrupt setup
1478 			 */
1479 			if (!pi_virt)
1480 				break;
1481 			/* Update the producer index from SPC */
1482 			producer_index = pm8001_read_32(pi_virt);
1483 			circularQ->producer_index = cpu_to_le32(producer_index);
1484 		}
1485 	} while (le32_to_cpu(circularQ->producer_index) !=
1486 		circularQ->consumer_idx);
1487 	/* while we don't have any more not-yet-delivered message */
1488 	/* report empty */
1489 	return MPI_IO_STATUS_BUSY;
1490 }
1491 
1492 void pm8001_work_fn(struct work_struct *work)
1493 {
1494 	struct pm8001_work *pw = container_of(work, struct pm8001_work, work);
1495 	struct pm8001_device *pm8001_dev;
1496 	struct domain_device *dev;
1497 
1498 	/*
1499 	 * So far, all users of this stash an associated structure here.
1500 	 * If we get here, and this pointer is null, then the action
1501 	 * was cancelled. This nullification happens when the device
1502 	 * goes away.
1503 	 */
1504 	if (pw->handler != IO_FATAL_ERROR) {
1505 		pm8001_dev = pw->data; /* Most stash device structure */
1506 		if ((pm8001_dev == NULL)
1507 		 || ((pw->handler != IO_XFER_ERROR_BREAK)
1508 			 && (pm8001_dev->dev_type == SAS_PHY_UNUSED))) {
1509 			kfree(pw);
1510 			return;
1511 		}
1512 	}
1513 
1514 	switch (pw->handler) {
1515 	case IO_XFER_ERROR_BREAK:
1516 	{	/* This one stashes the sas_task instead */
1517 		struct sas_task *t = (struct sas_task *)pm8001_dev;
1518 		u32 tag;
1519 		struct pm8001_ccb_info *ccb;
1520 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1521 		unsigned long flags, flags1;
1522 		struct task_status_struct *ts;
1523 		int i;
1524 
1525 		if (pm8001_query_task(t) == TMF_RESP_FUNC_SUCC)
1526 			break; /* Task still on lu */
1527 		spin_lock_irqsave(&pm8001_ha->lock, flags);
1528 
1529 		spin_lock_irqsave(&t->task_state_lock, flags1);
1530 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
1531 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1532 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1533 			break; /* Task got completed by another */
1534 		}
1535 		spin_unlock_irqrestore(&t->task_state_lock, flags1);
1536 
1537 		/* Search for a possible ccb that matches the task */
1538 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1539 			ccb = &pm8001_ha->ccb_info[i];
1540 			tag = ccb->ccb_tag;
1541 			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
1542 				break;
1543 		}
1544 		if (!ccb) {
1545 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1546 			break; /* Task got freed by another */
1547 		}
1548 		ts = &t->task_status;
1549 		ts->resp = SAS_TASK_COMPLETE;
1550 		/* Force the midlayer to retry */
1551 		ts->stat = SAS_QUEUE_FULL;
1552 		pm8001_dev = ccb->device;
1553 		if (pm8001_dev)
1554 			atomic_dec(&pm8001_dev->running_req);
1555 		spin_lock_irqsave(&t->task_state_lock, flags1);
1556 		t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
1557 		t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
1558 		t->task_state_flags |= SAS_TASK_STATE_DONE;
1559 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
1560 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1561 			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",
1562 				   t, pw->handler, ts->resp, ts->stat);
1563 			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
1564 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1565 		} else {
1566 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1567 			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
1568 			mb();/* in order to force CPU ordering */
1569 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1570 			t->task_done(t);
1571 		}
1572 	}	break;
1573 	case IO_XFER_OPEN_RETRY_TIMEOUT:
1574 	{	/* This one stashes the sas_task instead */
1575 		struct sas_task *t = (struct sas_task *)pm8001_dev;
1576 		u32 tag;
1577 		struct pm8001_ccb_info *ccb;
1578 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1579 		unsigned long flags, flags1;
1580 		int i, ret = 0;
1581 
1582 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
1583 
1584 		ret = pm8001_query_task(t);
1585 
1586 		if (ret == TMF_RESP_FUNC_SUCC)
1587 			pm8001_dbg(pm8001_ha, IO, "...Task on lu\n");
1588 		else if (ret == TMF_RESP_FUNC_COMPLETE)
1589 			pm8001_dbg(pm8001_ha, IO, "...Task NOT on lu\n");
1590 		else
1591 			pm8001_dbg(pm8001_ha, DEVIO, "...query task failed!!!\n");
1592 
1593 		spin_lock_irqsave(&pm8001_ha->lock, flags);
1594 
1595 		spin_lock_irqsave(&t->task_state_lock, flags1);
1596 
1597 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
1598 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1599 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1600 			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
1601 				(void)pm8001_abort_task(t);
1602 			break; /* Task got completed by another */
1603 		}
1604 
1605 		spin_unlock_irqrestore(&t->task_state_lock, flags1);
1606 
1607 		/* Search for a possible ccb that matches the task */
1608 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1609 			ccb = &pm8001_ha->ccb_info[i];
1610 			tag = ccb->ccb_tag;
1611 			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
1612 				break;
1613 		}
1614 		if (!ccb) {
1615 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1616 			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
1617 				(void)pm8001_abort_task(t);
1618 			break; /* Task got freed by another */
1619 		}
1620 
1621 		pm8001_dev = ccb->device;
1622 		dev = pm8001_dev->sas_device;
1623 
1624 		switch (ret) {
1625 		case TMF_RESP_FUNC_SUCC: /* task on lu */
1626 			ccb->open_retry = 1; /* Snub completion */
1627 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1628 			ret = pm8001_abort_task(t);
1629 			ccb->open_retry = 0;
1630 			switch (ret) {
1631 			case TMF_RESP_FUNC_SUCC:
1632 			case TMF_RESP_FUNC_COMPLETE:
1633 				break;
1634 			default: /* device misbehavior */
1635 				ret = TMF_RESP_FUNC_FAILED;
1636 				pm8001_dbg(pm8001_ha, IO, "...Reset phy\n");
1637 				pm8001_I_T_nexus_reset(dev);
1638 				break;
1639 			}
1640 			break;
1641 
1642 		case TMF_RESP_FUNC_COMPLETE: /* task not on lu */
1643 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1644 			/* Do we need to abort the task locally? */
1645 			break;
1646 
1647 		default: /* device misbehavior */
1648 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1649 			ret = TMF_RESP_FUNC_FAILED;
1650 			pm8001_dbg(pm8001_ha, IO, "...Reset phy\n");
1651 			pm8001_I_T_nexus_reset(dev);
1652 		}
1653 
1654 		if (ret == TMF_RESP_FUNC_FAILED)
1655 			t = NULL;
1656 		pm8001_open_reject_retry(pm8001_ha, t, pm8001_dev);
1657 		pm8001_dbg(pm8001_ha, IO, "...Complete\n");
1658 	}	break;
1659 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
1660 		dev = pm8001_dev->sas_device;
1661 		pm8001_I_T_nexus_event_handler(dev);
1662 		break;
1663 	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
1664 		dev = pm8001_dev->sas_device;
1665 		pm8001_I_T_nexus_reset(dev);
1666 		break;
1667 	case IO_DS_IN_ERROR:
1668 		dev = pm8001_dev->sas_device;
1669 		pm8001_I_T_nexus_reset(dev);
1670 		break;
1671 	case IO_DS_NON_OPERATIONAL:
1672 		dev = pm8001_dev->sas_device;
1673 		pm8001_I_T_nexus_reset(dev);
1674 		break;
1675 	case IO_FATAL_ERROR:
1676 	{
1677 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1678 		struct pm8001_ccb_info *ccb;
1679 		struct task_status_struct *ts;
1680 		struct sas_task *task;
1681 		int i;
1682 		u32 tag, device_id;
1683 
1684 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1685 			ccb = &pm8001_ha->ccb_info[i];
1686 			task = ccb->task;
1687 			ts = &task->task_status;
1688 			tag = ccb->ccb_tag;
1689 			/* check if tag is NULL */
1690 			if (!tag) {
1691 				pm8001_dbg(pm8001_ha, FAIL,
1692 					"tag Null\n");
1693 				continue;
1694 			}
1695 			if (task != NULL) {
1696 				dev = task->dev;
1697 				if (!dev) {
1698 					pm8001_dbg(pm8001_ha, FAIL,
1699 						"dev is NULL\n");
1700 					continue;
1701 				}
1702 				/*complete sas task and update to top layer */
1703 				pm8001_ccb_task_free(pm8001_ha, task, ccb, tag);
1704 				ts->resp = SAS_TASK_COMPLETE;
1705 				task->task_done(task);
1706 			} else if (tag != 0xFFFFFFFF) {
1707 				/* complete the internal commands/non-sas task */
1708 				pm8001_dev = ccb->device;
1709 				if (pm8001_dev->dcompletion) {
1710 					complete(pm8001_dev->dcompletion);
1711 					pm8001_dev->dcompletion = NULL;
1712 				}
1713 				complete(pm8001_ha->nvmd_completion);
1714 				pm8001_tag_free(pm8001_ha, tag);
1715 			}
1716 		}
1717 		/* Deregister all the device ids  */
1718 		for (i = 0; i < PM8001_MAX_DEVICES; i++) {
1719 			pm8001_dev = &pm8001_ha->devices[i];
1720 			device_id = pm8001_dev->device_id;
1721 			if (device_id) {
1722 				PM8001_CHIP_DISP->dereg_dev_req(pm8001_ha, device_id);
1723 				pm8001_free_dev(pm8001_dev);
1724 			}
1725 		}
1726 	}	break;
1727 	}
1728 	kfree(pw);
1729 }
1730 
1731 int pm8001_handle_event(struct pm8001_hba_info *pm8001_ha, void *data,
1732 			       int handler)
1733 {
1734 	struct pm8001_work *pw;
1735 	int ret = 0;
1736 
1737 	pw = kmalloc(sizeof(struct pm8001_work), GFP_ATOMIC);
1738 	if (pw) {
1739 		pw->pm8001_ha = pm8001_ha;
1740 		pw->data = data;
1741 		pw->handler = handler;
1742 		INIT_WORK(&pw->work, pm8001_work_fn);
1743 		queue_work(pm8001_wq, &pw->work);
1744 	} else
1745 		ret = -ENOMEM;
1746 
1747 	return ret;
1748 }
1749 
1750 static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
1751 		struct pm8001_device *pm8001_ha_dev)
1752 {
1753 	int res;
1754 	u32 ccb_tag;
1755 	struct pm8001_ccb_info *ccb;
1756 	struct sas_task *task = NULL;
1757 	struct task_abort_req task_abort;
1758 	struct inbound_queue_table *circularQ;
1759 	u32 opc = OPC_INB_SATA_ABORT;
1760 	int ret;
1761 
1762 	if (!pm8001_ha_dev) {
1763 		pm8001_dbg(pm8001_ha, FAIL, "dev is null\n");
1764 		return;
1765 	}
1766 
1767 	task = sas_alloc_slow_task(GFP_ATOMIC);
1768 
1769 	if (!task) {
1770 		pm8001_dbg(pm8001_ha, FAIL, "cannot allocate task\n");
1771 		return;
1772 	}
1773 
1774 	task->task_done = pm8001_task_done;
1775 
1776 	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
1777 	if (res)
1778 		return;
1779 
1780 	ccb = &pm8001_ha->ccb_info[ccb_tag];
1781 	ccb->device = pm8001_ha_dev;
1782 	ccb->ccb_tag = ccb_tag;
1783 	ccb->task = task;
1784 
1785 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
1786 
1787 	memset(&task_abort, 0, sizeof(task_abort));
1788 	task_abort.abort_all = cpu_to_le32(1);
1789 	task_abort.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
1790 	task_abort.tag = cpu_to_le32(ccb_tag);
1791 
1792 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
1793 			sizeof(task_abort), 0);
1794 	if (ret)
1795 		pm8001_tag_free(pm8001_ha, ccb_tag);
1796 
1797 }
1798 
1799 static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
1800 		struct pm8001_device *pm8001_ha_dev)
1801 {
1802 	struct sata_start_req sata_cmd;
1803 	int res;
1804 	u32 ccb_tag;
1805 	struct pm8001_ccb_info *ccb;
1806 	struct sas_task *task = NULL;
1807 	struct host_to_dev_fis fis;
1808 	struct domain_device *dev;
1809 	struct inbound_queue_table *circularQ;
1810 	u32 opc = OPC_INB_SATA_HOST_OPSTART;
1811 
1812 	task = sas_alloc_slow_task(GFP_ATOMIC);
1813 
1814 	if (!task) {
1815 		pm8001_dbg(pm8001_ha, FAIL, "cannot allocate task !!!\n");
1816 		return;
1817 	}
1818 	task->task_done = pm8001_task_done;
1819 
1820 	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
1821 	if (res) {
1822 		sas_free_task(task);
1823 		pm8001_dbg(pm8001_ha, FAIL, "cannot allocate tag !!!\n");
1824 		return;
1825 	}
1826 
1827 	/* allocate domain device by ourselves as libsas
1828 	 * is not going to provide any
1829 	*/
1830 	dev = kzalloc(sizeof(struct domain_device), GFP_ATOMIC);
1831 	if (!dev) {
1832 		sas_free_task(task);
1833 		pm8001_tag_free(pm8001_ha, ccb_tag);
1834 		pm8001_dbg(pm8001_ha, FAIL,
1835 			   "Domain device cannot be allocated\n");
1836 		return;
1837 	}
1838 	task->dev = dev;
1839 	task->dev->lldd_dev = pm8001_ha_dev;
1840 
1841 	ccb = &pm8001_ha->ccb_info[ccb_tag];
1842 	ccb->device = pm8001_ha_dev;
1843 	ccb->ccb_tag = ccb_tag;
1844 	ccb->task = task;
1845 	pm8001_ha_dev->id |= NCQ_READ_LOG_FLAG;
1846 	pm8001_ha_dev->id |= NCQ_2ND_RLE_FLAG;
1847 
1848 	memset(&sata_cmd, 0, sizeof(sata_cmd));
1849 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
1850 
1851 	/* construct read log FIS */
1852 	memset(&fis, 0, sizeof(struct host_to_dev_fis));
1853 	fis.fis_type = 0x27;
1854 	fis.flags = 0x80;
1855 	fis.command = ATA_CMD_READ_LOG_EXT;
1856 	fis.lbal = 0x10;
1857 	fis.sector_count = 0x1;
1858 
1859 	sata_cmd.tag = cpu_to_le32(ccb_tag);
1860 	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
1861 	sata_cmd.ncqtag_atap_dir_m |= ((0x1 << 7) | (0x5 << 9));
1862 	memcpy(&sata_cmd.sata_fis, &fis, sizeof(struct host_to_dev_fis));
1863 
1864 	res = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
1865 			sizeof(sata_cmd), 0);
1866 	if (res) {
1867 		sas_free_task(task);
1868 		pm8001_tag_free(pm8001_ha, ccb_tag);
1869 		kfree(dev);
1870 	}
1871 }
1872 
1873 /**
1874  * mpi_ssp_completion- process the event that FW response to the SSP request.
1875  * @pm8001_ha: our hba card information
1876  * @piomb: the message contents of this outbound message.
1877  *
1878  * When FW has completed a ssp request for example a IO request, after it has
1879  * filled the SG data with the data, it will trigger this event represent
1880  * that he has finished the job,please check the coresponding buffer.
1881  * So we will tell the caller who maybe waiting the result to tell upper layer
1882  * that the task has been finished.
1883  */
1884 static void
1885 mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
1886 {
1887 	struct sas_task *t;
1888 	struct pm8001_ccb_info *ccb;
1889 	unsigned long flags;
1890 	u32 status;
1891 	u32 param;
1892 	u32 tag;
1893 	struct ssp_completion_resp *psspPayload;
1894 	struct task_status_struct *ts;
1895 	struct ssp_response_iu *iu;
1896 	struct pm8001_device *pm8001_dev;
1897 	psspPayload = (struct ssp_completion_resp *)(piomb + 4);
1898 	status = le32_to_cpu(psspPayload->status);
1899 	tag = le32_to_cpu(psspPayload->tag);
1900 	ccb = &pm8001_ha->ccb_info[tag];
1901 	if ((status == IO_ABORTED) && ccb->open_retry) {
1902 		/* Being completed by another */
1903 		ccb->open_retry = 0;
1904 		return;
1905 	}
1906 	pm8001_dev = ccb->device;
1907 	param = le32_to_cpu(psspPayload->param);
1908 
1909 	t = ccb->task;
1910 
1911 	if (status && status != IO_UNDERFLOW)
1912 		pm8001_dbg(pm8001_ha, FAIL, "sas IO status 0x%x\n", status);
1913 	if (unlikely(!t || !t->lldd_task || !t->dev))
1914 		return;
1915 	ts = &t->task_status;
1916 	/* Print sas address of IO failed device */
1917 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
1918 		(status != IO_UNDERFLOW))
1919 		pm8001_dbg(pm8001_ha, FAIL, "SAS Address of IO Failure Drive:%016llx\n",
1920 			   SAS_ADDR(t->dev->sas_addr));
1921 
1922 	if (status)
1923 		pm8001_dbg(pm8001_ha, IOERR,
1924 			   "status:0x%x, tag:0x%x, task:0x%p\n",
1925 			   status, tag, t);
1926 
1927 	switch (status) {
1928 	case IO_SUCCESS:
1929 		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS,param = %d\n",
1930 			   param);
1931 		if (param == 0) {
1932 			ts->resp = SAS_TASK_COMPLETE;
1933 			ts->stat = SAM_STAT_GOOD;
1934 		} else {
1935 			ts->resp = SAS_TASK_COMPLETE;
1936 			ts->stat = SAS_PROTO_RESPONSE;
1937 			ts->residual = param;
1938 			iu = &psspPayload->ssp_resp_iu;
1939 			sas_ssp_task_response(pm8001_ha->dev, t, iu);
1940 		}
1941 		if (pm8001_dev)
1942 			atomic_dec(&pm8001_dev->running_req);
1943 		break;
1944 	case IO_ABORTED:
1945 		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB Tag\n");
1946 		ts->resp = SAS_TASK_COMPLETE;
1947 		ts->stat = SAS_ABORTED_TASK;
1948 		break;
1949 	case IO_UNDERFLOW:
1950 		/* SSP Completion with error */
1951 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW,param = %d\n",
1952 			   param);
1953 		ts->resp = SAS_TASK_COMPLETE;
1954 		ts->stat = SAS_DATA_UNDERRUN;
1955 		ts->residual = param;
1956 		if (pm8001_dev)
1957 			atomic_dec(&pm8001_dev->running_req);
1958 		break;
1959 	case IO_NO_DEVICE:
1960 		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
1961 		ts->resp = SAS_TASK_UNDELIVERED;
1962 		ts->stat = SAS_PHY_DOWN;
1963 		break;
1964 	case IO_XFER_ERROR_BREAK:
1965 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
1966 		ts->resp = SAS_TASK_COMPLETE;
1967 		ts->stat = SAS_OPEN_REJECT;
1968 		/* Force the midlayer to retry */
1969 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1970 		break;
1971 	case IO_XFER_ERROR_PHY_NOT_READY:
1972 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
1973 		ts->resp = SAS_TASK_COMPLETE;
1974 		ts->stat = SAS_OPEN_REJECT;
1975 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1976 		break;
1977 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
1978 		pm8001_dbg(pm8001_ha, IO,
1979 			   "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
1980 		ts->resp = SAS_TASK_COMPLETE;
1981 		ts->stat = SAS_OPEN_REJECT;
1982 		ts->open_rej_reason = SAS_OREJ_EPROTO;
1983 		break;
1984 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
1985 		pm8001_dbg(pm8001_ha, IO,
1986 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
1987 		ts->resp = SAS_TASK_COMPLETE;
1988 		ts->stat = SAS_OPEN_REJECT;
1989 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1990 		break;
1991 	case IO_OPEN_CNX_ERROR_BREAK:
1992 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
1993 		ts->resp = SAS_TASK_COMPLETE;
1994 		ts->stat = SAS_OPEN_REJECT;
1995 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1996 		break;
1997 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
1998 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
1999 		ts->resp = SAS_TASK_COMPLETE;
2000 		ts->stat = SAS_OPEN_REJECT;
2001 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2002 		if (!t->uldd_task)
2003 			pm8001_handle_event(pm8001_ha,
2004 				pm8001_dev,
2005 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2006 		break;
2007 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2008 		pm8001_dbg(pm8001_ha, IO,
2009 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2010 		ts->resp = SAS_TASK_COMPLETE;
2011 		ts->stat = SAS_OPEN_REJECT;
2012 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2013 		break;
2014 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2015 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2016 		ts->resp = SAS_TASK_COMPLETE;
2017 		ts->stat = SAS_OPEN_REJECT;
2018 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2019 		break;
2020 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2021 		pm8001_dbg(pm8001_ha, IO,
2022 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2023 		ts->resp = SAS_TASK_UNDELIVERED;
2024 		ts->stat = SAS_OPEN_REJECT;
2025 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2026 		break;
2027 	case IO_XFER_ERROR_NAK_RECEIVED:
2028 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
2029 		ts->resp = SAS_TASK_COMPLETE;
2030 		ts->stat = SAS_OPEN_REJECT;
2031 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2032 		break;
2033 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2034 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
2035 		ts->resp = SAS_TASK_COMPLETE;
2036 		ts->stat = SAS_NAK_R_ERR;
2037 		break;
2038 	case IO_XFER_ERROR_DMA:
2039 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_DMA\n");
2040 		ts->resp = SAS_TASK_COMPLETE;
2041 		ts->stat = SAS_OPEN_REJECT;
2042 		break;
2043 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2044 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2045 		ts->resp = SAS_TASK_COMPLETE;
2046 		ts->stat = SAS_OPEN_REJECT;
2047 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2048 		break;
2049 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2050 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
2051 		ts->resp = SAS_TASK_COMPLETE;
2052 		ts->stat = SAS_OPEN_REJECT;
2053 		break;
2054 	case IO_PORT_IN_RESET:
2055 		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
2056 		ts->resp = SAS_TASK_COMPLETE;
2057 		ts->stat = SAS_OPEN_REJECT;
2058 		break;
2059 	case IO_DS_NON_OPERATIONAL:
2060 		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
2061 		ts->resp = SAS_TASK_COMPLETE;
2062 		ts->stat = SAS_OPEN_REJECT;
2063 		if (!t->uldd_task)
2064 			pm8001_handle_event(pm8001_ha,
2065 				pm8001_dev,
2066 				IO_DS_NON_OPERATIONAL);
2067 		break;
2068 	case IO_DS_IN_RECOVERY:
2069 		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_RECOVERY\n");
2070 		ts->resp = SAS_TASK_COMPLETE;
2071 		ts->stat = SAS_OPEN_REJECT;
2072 		break;
2073 	case IO_TM_TAG_NOT_FOUND:
2074 		pm8001_dbg(pm8001_ha, IO, "IO_TM_TAG_NOT_FOUND\n");
2075 		ts->resp = SAS_TASK_COMPLETE;
2076 		ts->stat = SAS_OPEN_REJECT;
2077 		break;
2078 	case IO_SSP_EXT_IU_ZERO_LEN_ERROR:
2079 		pm8001_dbg(pm8001_ha, IO, "IO_SSP_EXT_IU_ZERO_LEN_ERROR\n");
2080 		ts->resp = SAS_TASK_COMPLETE;
2081 		ts->stat = SAS_OPEN_REJECT;
2082 		break;
2083 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2084 		pm8001_dbg(pm8001_ha, IO,
2085 			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
2086 		ts->resp = SAS_TASK_COMPLETE;
2087 		ts->stat = SAS_OPEN_REJECT;
2088 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2089 		break;
2090 	default:
2091 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
2092 		/* not allowed case. Therefore, return failed status */
2093 		ts->resp = SAS_TASK_COMPLETE;
2094 		ts->stat = SAS_OPEN_REJECT;
2095 		break;
2096 	}
2097 	pm8001_dbg(pm8001_ha, IO, "scsi_status = %x\n",
2098 		   psspPayload->ssp_resp_iu.status);
2099 	spin_lock_irqsave(&t->task_state_lock, flags);
2100 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2101 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2102 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2103 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2104 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2105 		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",
2106 			   t, status, ts->resp, ts->stat);
2107 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2108 	} else {
2109 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2110 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2111 		mb();/* in order to force CPU ordering */
2112 		t->task_done(t);
2113 	}
2114 }
2115 
2116 /*See the comments for mpi_ssp_completion */
2117 static void mpi_ssp_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
2118 {
2119 	struct sas_task *t;
2120 	unsigned long flags;
2121 	struct task_status_struct *ts;
2122 	struct pm8001_ccb_info *ccb;
2123 	struct pm8001_device *pm8001_dev;
2124 	struct ssp_event_resp *psspPayload =
2125 		(struct ssp_event_resp *)(piomb + 4);
2126 	u32 event = le32_to_cpu(psspPayload->event);
2127 	u32 tag = le32_to_cpu(psspPayload->tag);
2128 	u32 port_id = le32_to_cpu(psspPayload->port_id);
2129 	u32 dev_id = le32_to_cpu(psspPayload->device_id);
2130 
2131 	ccb = &pm8001_ha->ccb_info[tag];
2132 	t = ccb->task;
2133 	pm8001_dev = ccb->device;
2134 	if (event)
2135 		pm8001_dbg(pm8001_ha, FAIL, "sas IO status 0x%x\n", event);
2136 	if (unlikely(!t || !t->lldd_task || !t->dev))
2137 		return;
2138 	ts = &t->task_status;
2139 	pm8001_dbg(pm8001_ha, DEVIO, "port_id = %x,device_id = %x\n",
2140 		   port_id, dev_id);
2141 	switch (event) {
2142 	case IO_OVERFLOW:
2143 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
2144 		ts->resp = SAS_TASK_COMPLETE;
2145 		ts->stat = SAS_DATA_OVERRUN;
2146 		ts->residual = 0;
2147 		if (pm8001_dev)
2148 			atomic_dec(&pm8001_dev->running_req);
2149 		break;
2150 	case IO_XFER_ERROR_BREAK:
2151 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2152 		pm8001_handle_event(pm8001_ha, t, IO_XFER_ERROR_BREAK);
2153 		return;
2154 	case IO_XFER_ERROR_PHY_NOT_READY:
2155 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\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_PROTOCOL_NOT_SUPPORTED:
2161 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2162 		ts->resp = SAS_TASK_COMPLETE;
2163 		ts->stat = SAS_OPEN_REJECT;
2164 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2165 		break;
2166 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2167 		pm8001_dbg(pm8001_ha, IO,
2168 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2169 		ts->resp = SAS_TASK_COMPLETE;
2170 		ts->stat = SAS_OPEN_REJECT;
2171 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2172 		break;
2173 	case IO_OPEN_CNX_ERROR_BREAK:
2174 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2175 		ts->resp = SAS_TASK_COMPLETE;
2176 		ts->stat = SAS_OPEN_REJECT;
2177 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2178 		break;
2179 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2180 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2181 		ts->resp = SAS_TASK_COMPLETE;
2182 		ts->stat = SAS_OPEN_REJECT;
2183 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2184 		if (!t->uldd_task)
2185 			pm8001_handle_event(pm8001_ha,
2186 				pm8001_dev,
2187 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2188 		break;
2189 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2190 		pm8001_dbg(pm8001_ha, IO,
2191 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2192 		ts->resp = SAS_TASK_COMPLETE;
2193 		ts->stat = SAS_OPEN_REJECT;
2194 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2195 		break;
2196 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2197 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2198 		ts->resp = SAS_TASK_COMPLETE;
2199 		ts->stat = SAS_OPEN_REJECT;
2200 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2201 		break;
2202 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2203 		pm8001_dbg(pm8001_ha, IO,
2204 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2205 		ts->resp = SAS_TASK_COMPLETE;
2206 		ts->stat = SAS_OPEN_REJECT;
2207 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2208 		break;
2209 	case IO_XFER_ERROR_NAK_RECEIVED:
2210 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
2211 		ts->resp = SAS_TASK_COMPLETE;
2212 		ts->stat = SAS_OPEN_REJECT;
2213 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2214 		break;
2215 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2216 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
2217 		ts->resp = SAS_TASK_COMPLETE;
2218 		ts->stat = SAS_NAK_R_ERR;
2219 		break;
2220 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2221 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2222 		pm8001_handle_event(pm8001_ha, t, IO_XFER_OPEN_RETRY_TIMEOUT);
2223 		return;
2224 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2225 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_UNEXPECTED_PHASE\n");
2226 		ts->resp = SAS_TASK_COMPLETE;
2227 		ts->stat = SAS_DATA_OVERRUN;
2228 		break;
2229 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2230 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_XFER_RDY_OVERRUN\n");
2231 		ts->resp = SAS_TASK_COMPLETE;
2232 		ts->stat = SAS_DATA_OVERRUN;
2233 		break;
2234 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2235 		pm8001_dbg(pm8001_ha, IO,
2236 			   "IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n");
2237 		ts->resp = SAS_TASK_COMPLETE;
2238 		ts->stat = SAS_DATA_OVERRUN;
2239 		break;
2240 	case IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT:
2241 		pm8001_dbg(pm8001_ha, IO,
2242 			   "IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT\n");
2243 		ts->resp = SAS_TASK_COMPLETE;
2244 		ts->stat = SAS_DATA_OVERRUN;
2245 		break;
2246 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2247 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
2248 		ts->resp = SAS_TASK_COMPLETE;
2249 		ts->stat = SAS_DATA_OVERRUN;
2250 		break;
2251 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2252 		pm8001_dbg(pm8001_ha, IO,
2253 			   "IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n");
2254 		ts->resp = SAS_TASK_COMPLETE;
2255 		ts->stat = SAS_DATA_OVERRUN;
2256 		break;
2257 	case IO_XFER_CMD_FRAME_ISSUED:
2258 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_CMD_FRAME_ISSUED\n");
2259 		return;
2260 	default:
2261 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", event);
2262 		/* not allowed case. Therefore, return failed status */
2263 		ts->resp = SAS_TASK_COMPLETE;
2264 		ts->stat = SAS_DATA_OVERRUN;
2265 		break;
2266 	}
2267 	spin_lock_irqsave(&t->task_state_lock, flags);
2268 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2269 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2270 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2271 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2272 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2273 		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",
2274 			   t, event, ts->resp, ts->stat);
2275 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2276 	} else {
2277 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2278 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2279 		mb();/* in order to force CPU ordering */
2280 		t->task_done(t);
2281 	}
2282 }
2283 
2284 /*See the comments for mpi_ssp_completion */
2285 static void
2286 mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2287 {
2288 	struct sas_task *t;
2289 	struct pm8001_ccb_info *ccb;
2290 	u32 param;
2291 	u32 status;
2292 	u32 tag;
2293 	int i, j;
2294 	u8 sata_addr_low[4];
2295 	u32 temp_sata_addr_low;
2296 	u8 sata_addr_hi[4];
2297 	u32 temp_sata_addr_hi;
2298 	struct sata_completion_resp *psataPayload;
2299 	struct task_status_struct *ts;
2300 	struct ata_task_resp *resp ;
2301 	u32 *sata_resp;
2302 	struct pm8001_device *pm8001_dev;
2303 	unsigned long flags;
2304 
2305 	psataPayload = (struct sata_completion_resp *)(piomb + 4);
2306 	status = le32_to_cpu(psataPayload->status);
2307 	tag = le32_to_cpu(psataPayload->tag);
2308 
2309 	if (!tag) {
2310 		pm8001_dbg(pm8001_ha, FAIL, "tag null\n");
2311 		return;
2312 	}
2313 	ccb = &pm8001_ha->ccb_info[tag];
2314 	param = le32_to_cpu(psataPayload->param);
2315 	if (ccb) {
2316 		t = ccb->task;
2317 		pm8001_dev = ccb->device;
2318 	} else {
2319 		pm8001_dbg(pm8001_ha, FAIL, "ccb null\n");
2320 		return;
2321 	}
2322 
2323 	if (t) {
2324 		if (t->dev && (t->dev->lldd_dev))
2325 			pm8001_dev = t->dev->lldd_dev;
2326 	} else {
2327 		pm8001_dbg(pm8001_ha, FAIL, "task null\n");
2328 		return;
2329 	}
2330 
2331 	if ((pm8001_dev && !(pm8001_dev->id & NCQ_READ_LOG_FLAG))
2332 		&& unlikely(!t || !t->lldd_task || !t->dev)) {
2333 		pm8001_dbg(pm8001_ha, FAIL, "task or dev null\n");
2334 		return;
2335 	}
2336 
2337 	ts = &t->task_status;
2338 	if (!ts) {
2339 		pm8001_dbg(pm8001_ha, FAIL, "ts null\n");
2340 		return;
2341 	}
2342 
2343 	if (status)
2344 		pm8001_dbg(pm8001_ha, IOERR,
2345 			   "status:0x%x, tag:0x%x, task::0x%p\n",
2346 			   status, tag, t);
2347 
2348 	/* Print sas address of IO failed device */
2349 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
2350 		(status != IO_UNDERFLOW)) {
2351 		if (!((t->dev->parent) &&
2352 			(dev_is_expander(t->dev->parent->dev_type)))) {
2353 			for (i = 0, j = 4; j <= 7 && i <= 3; i++, j++)
2354 				sata_addr_low[i] = pm8001_ha->sas_addr[j];
2355 			for (i = 0, j = 0; j <= 3 && i <= 3; i++, j++)
2356 				sata_addr_hi[i] = pm8001_ha->sas_addr[j];
2357 			memcpy(&temp_sata_addr_low, sata_addr_low,
2358 				sizeof(sata_addr_low));
2359 			memcpy(&temp_sata_addr_hi, sata_addr_hi,
2360 				sizeof(sata_addr_hi));
2361 			temp_sata_addr_hi = (((temp_sata_addr_hi >> 24) & 0xff)
2362 						|((temp_sata_addr_hi << 8) &
2363 						0xff0000) |
2364 						((temp_sata_addr_hi >> 8)
2365 						& 0xff00) |
2366 						((temp_sata_addr_hi << 24) &
2367 						0xff000000));
2368 			temp_sata_addr_low = ((((temp_sata_addr_low >> 24)
2369 						& 0xff) |
2370 						((temp_sata_addr_low << 8)
2371 						& 0xff0000) |
2372 						((temp_sata_addr_low >> 8)
2373 						& 0xff00) |
2374 						((temp_sata_addr_low << 24)
2375 						& 0xff000000)) +
2376 						pm8001_dev->attached_phy +
2377 						0x10);
2378 			pm8001_dbg(pm8001_ha, FAIL,
2379 				   "SAS Address of IO Failure Drive:%08x%08x\n",
2380 				   temp_sata_addr_hi,
2381 				   temp_sata_addr_low);
2382 		} else {
2383 			pm8001_dbg(pm8001_ha, FAIL,
2384 				   "SAS Address of IO Failure Drive:%016llx\n",
2385 				   SAS_ADDR(t->dev->sas_addr));
2386 		}
2387 	}
2388 	switch (status) {
2389 	case IO_SUCCESS:
2390 		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
2391 		if (param == 0) {
2392 			ts->resp = SAS_TASK_COMPLETE;
2393 			ts->stat = SAM_STAT_GOOD;
2394 			/* check if response is for SEND READ LOG */
2395 			if (pm8001_dev &&
2396 				(pm8001_dev->id & NCQ_READ_LOG_FLAG)) {
2397 				/* set new bit for abort_all */
2398 				pm8001_dev->id |= NCQ_ABORT_ALL_FLAG;
2399 				/* clear bit for read log */
2400 				pm8001_dev->id = pm8001_dev->id & 0x7FFFFFFF;
2401 				pm8001_send_abort_all(pm8001_ha, pm8001_dev);
2402 				/* Free the tag */
2403 				pm8001_tag_free(pm8001_ha, tag);
2404 				sas_free_task(t);
2405 				return;
2406 			}
2407 		} else {
2408 			u8 len;
2409 			ts->resp = SAS_TASK_COMPLETE;
2410 			ts->stat = SAS_PROTO_RESPONSE;
2411 			ts->residual = param;
2412 			pm8001_dbg(pm8001_ha, IO,
2413 				   "SAS_PROTO_RESPONSE len = %d\n",
2414 				   param);
2415 			sata_resp = &psataPayload->sata_resp[0];
2416 			resp = (struct ata_task_resp *)ts->buf;
2417 			if (t->ata_task.dma_xfer == 0 &&
2418 			    t->data_dir == DMA_FROM_DEVICE) {
2419 				len = sizeof(struct pio_setup_fis);
2420 				pm8001_dbg(pm8001_ha, IO,
2421 					   "PIO read len = %d\n", len);
2422 			} else if (t->ata_task.use_ncq) {
2423 				len = sizeof(struct set_dev_bits_fis);
2424 				pm8001_dbg(pm8001_ha, IO, "FPDMA len = %d\n",
2425 					   len);
2426 			} else {
2427 				len = sizeof(struct dev_to_host_fis);
2428 				pm8001_dbg(pm8001_ha, IO, "other len = %d\n",
2429 					   len);
2430 			}
2431 			if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) {
2432 				resp->frame_len = len;
2433 				memcpy(&resp->ending_fis[0], sata_resp, len);
2434 				ts->buf_valid_size = sizeof(*resp);
2435 			} else
2436 				pm8001_dbg(pm8001_ha, IO,
2437 					   "response too large\n");
2438 		}
2439 		if (pm8001_dev)
2440 			atomic_dec(&pm8001_dev->running_req);
2441 		break;
2442 	case IO_ABORTED:
2443 		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB Tag\n");
2444 		ts->resp = SAS_TASK_COMPLETE;
2445 		ts->stat = SAS_ABORTED_TASK;
2446 		if (pm8001_dev)
2447 			atomic_dec(&pm8001_dev->running_req);
2448 		break;
2449 		/* following cases are to do cases */
2450 	case IO_UNDERFLOW:
2451 		/* SATA Completion with error */
2452 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW param = %d\n", param);
2453 		ts->resp = SAS_TASK_COMPLETE;
2454 		ts->stat = SAS_DATA_UNDERRUN;
2455 		ts->residual =  param;
2456 		if (pm8001_dev)
2457 			atomic_dec(&pm8001_dev->running_req);
2458 		break;
2459 	case IO_NO_DEVICE:
2460 		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
2461 		ts->resp = SAS_TASK_UNDELIVERED;
2462 		ts->stat = SAS_PHY_DOWN;
2463 		if (pm8001_dev)
2464 			atomic_dec(&pm8001_dev->running_req);
2465 		break;
2466 	case IO_XFER_ERROR_BREAK:
2467 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2468 		ts->resp = SAS_TASK_COMPLETE;
2469 		ts->stat = SAS_INTERRUPTED;
2470 		if (pm8001_dev)
2471 			atomic_dec(&pm8001_dev->running_req);
2472 		break;
2473 	case IO_XFER_ERROR_PHY_NOT_READY:
2474 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
2475 		ts->resp = SAS_TASK_COMPLETE;
2476 		ts->stat = SAS_OPEN_REJECT;
2477 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2478 		if (pm8001_dev)
2479 			atomic_dec(&pm8001_dev->running_req);
2480 		break;
2481 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2482 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2483 		ts->resp = SAS_TASK_COMPLETE;
2484 		ts->stat = SAS_OPEN_REJECT;
2485 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2486 		if (pm8001_dev)
2487 			atomic_dec(&pm8001_dev->running_req);
2488 		break;
2489 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2490 		pm8001_dbg(pm8001_ha, IO,
2491 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2492 		ts->resp = SAS_TASK_COMPLETE;
2493 		ts->stat = SAS_OPEN_REJECT;
2494 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2495 		if (pm8001_dev)
2496 			atomic_dec(&pm8001_dev->running_req);
2497 		break;
2498 	case IO_OPEN_CNX_ERROR_BREAK:
2499 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2500 		ts->resp = SAS_TASK_COMPLETE;
2501 		ts->stat = SAS_OPEN_REJECT;
2502 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2503 		if (pm8001_dev)
2504 			atomic_dec(&pm8001_dev->running_req);
2505 		break;
2506 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2507 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2508 		ts->resp = SAS_TASK_COMPLETE;
2509 		ts->stat = SAS_DEV_NO_RESPONSE;
2510 		if (!t->uldd_task) {
2511 			pm8001_handle_event(pm8001_ha,
2512 				pm8001_dev,
2513 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2514 			ts->resp = SAS_TASK_UNDELIVERED;
2515 			ts->stat = SAS_QUEUE_FULL;
2516 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2517 			return;
2518 		}
2519 		break;
2520 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2521 		pm8001_dbg(pm8001_ha, IO,
2522 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2523 		ts->resp = SAS_TASK_UNDELIVERED;
2524 		ts->stat = SAS_OPEN_REJECT;
2525 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2526 		if (!t->uldd_task) {
2527 			pm8001_handle_event(pm8001_ha,
2528 				pm8001_dev,
2529 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2530 			ts->resp = SAS_TASK_UNDELIVERED;
2531 			ts->stat = SAS_QUEUE_FULL;
2532 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2533 			return;
2534 		}
2535 		break;
2536 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2537 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2538 		ts->resp = SAS_TASK_COMPLETE;
2539 		ts->stat = SAS_OPEN_REJECT;
2540 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2541 		if (pm8001_dev)
2542 			atomic_dec(&pm8001_dev->running_req);
2543 		break;
2544 	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
2545 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY\n");
2546 		ts->resp = SAS_TASK_COMPLETE;
2547 		ts->stat = SAS_DEV_NO_RESPONSE;
2548 		if (!t->uldd_task) {
2549 			pm8001_handle_event(pm8001_ha,
2550 				pm8001_dev,
2551 				IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY);
2552 			ts->resp = SAS_TASK_UNDELIVERED;
2553 			ts->stat = SAS_QUEUE_FULL;
2554 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2555 			return;
2556 		}
2557 		break;
2558 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2559 		pm8001_dbg(pm8001_ha, IO,
2560 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2561 		ts->resp = SAS_TASK_COMPLETE;
2562 		ts->stat = SAS_OPEN_REJECT;
2563 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2564 		if (pm8001_dev)
2565 			atomic_dec(&pm8001_dev->running_req);
2566 		break;
2567 	case IO_XFER_ERROR_NAK_RECEIVED:
2568 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
2569 		ts->resp = SAS_TASK_COMPLETE;
2570 		ts->stat = SAS_NAK_R_ERR;
2571 		if (pm8001_dev)
2572 			atomic_dec(&pm8001_dev->running_req);
2573 		break;
2574 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2575 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
2576 		ts->resp = SAS_TASK_COMPLETE;
2577 		ts->stat = SAS_NAK_R_ERR;
2578 		if (pm8001_dev)
2579 			atomic_dec(&pm8001_dev->running_req);
2580 		break;
2581 	case IO_XFER_ERROR_DMA:
2582 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_DMA\n");
2583 		ts->resp = SAS_TASK_COMPLETE;
2584 		ts->stat = SAS_ABORTED_TASK;
2585 		if (pm8001_dev)
2586 			atomic_dec(&pm8001_dev->running_req);
2587 		break;
2588 	case IO_XFER_ERROR_SATA_LINK_TIMEOUT:
2589 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_SATA_LINK_TIMEOUT\n");
2590 		ts->resp = SAS_TASK_UNDELIVERED;
2591 		ts->stat = SAS_DEV_NO_RESPONSE;
2592 		if (pm8001_dev)
2593 			atomic_dec(&pm8001_dev->running_req);
2594 		break;
2595 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2596 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_REJECTED_NCQ_MODE\n");
2597 		ts->resp = SAS_TASK_COMPLETE;
2598 		ts->stat = SAS_DATA_UNDERRUN;
2599 		if (pm8001_dev)
2600 			atomic_dec(&pm8001_dev->running_req);
2601 		break;
2602 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2603 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2604 		ts->resp = SAS_TASK_COMPLETE;
2605 		ts->stat = SAS_OPEN_TO;
2606 		if (pm8001_dev)
2607 			atomic_dec(&pm8001_dev->running_req);
2608 		break;
2609 	case IO_PORT_IN_RESET:
2610 		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
2611 		ts->resp = SAS_TASK_COMPLETE;
2612 		ts->stat = SAS_DEV_NO_RESPONSE;
2613 		if (pm8001_dev)
2614 			atomic_dec(&pm8001_dev->running_req);
2615 		break;
2616 	case IO_DS_NON_OPERATIONAL:
2617 		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
2618 		ts->resp = SAS_TASK_COMPLETE;
2619 		ts->stat = SAS_DEV_NO_RESPONSE;
2620 		if (!t->uldd_task) {
2621 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2622 				    IO_DS_NON_OPERATIONAL);
2623 			ts->resp = SAS_TASK_UNDELIVERED;
2624 			ts->stat = SAS_QUEUE_FULL;
2625 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2626 			return;
2627 		}
2628 		break;
2629 	case IO_DS_IN_RECOVERY:
2630 		pm8001_dbg(pm8001_ha, IO, "  IO_DS_IN_RECOVERY\n");
2631 		ts->resp = SAS_TASK_COMPLETE;
2632 		ts->stat = SAS_DEV_NO_RESPONSE;
2633 		if (pm8001_dev)
2634 			atomic_dec(&pm8001_dev->running_req);
2635 		break;
2636 	case IO_DS_IN_ERROR:
2637 		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_ERROR\n");
2638 		ts->resp = SAS_TASK_COMPLETE;
2639 		ts->stat = SAS_DEV_NO_RESPONSE;
2640 		if (!t->uldd_task) {
2641 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2642 				    IO_DS_IN_ERROR);
2643 			ts->resp = SAS_TASK_UNDELIVERED;
2644 			ts->stat = SAS_QUEUE_FULL;
2645 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2646 			return;
2647 		}
2648 		break;
2649 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2650 		pm8001_dbg(pm8001_ha, IO,
2651 			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
2652 		ts->resp = SAS_TASK_COMPLETE;
2653 		ts->stat = SAS_OPEN_REJECT;
2654 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2655 		if (pm8001_dev)
2656 			atomic_dec(&pm8001_dev->running_req);
2657 		break;
2658 	default:
2659 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
2660 		/* not allowed case. Therefore, return failed status */
2661 		ts->resp = SAS_TASK_COMPLETE;
2662 		ts->stat = SAS_DEV_NO_RESPONSE;
2663 		if (pm8001_dev)
2664 			atomic_dec(&pm8001_dev->running_req);
2665 		break;
2666 	}
2667 	spin_lock_irqsave(&t->task_state_lock, flags);
2668 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2669 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2670 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2671 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2672 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2673 		pm8001_dbg(pm8001_ha, FAIL,
2674 			   "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
2675 			   t, status, ts->resp, ts->stat);
2676 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2677 	} else {
2678 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2679 		pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2680 	}
2681 }
2682 
2683 /*See the comments for mpi_ssp_completion */
2684 static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
2685 {
2686 	struct sas_task *t;
2687 	struct task_status_struct *ts;
2688 	struct pm8001_ccb_info *ccb;
2689 	struct pm8001_device *pm8001_dev;
2690 	struct sata_event_resp *psataPayload =
2691 		(struct sata_event_resp *)(piomb + 4);
2692 	u32 event = le32_to_cpu(psataPayload->event);
2693 	u32 tag = le32_to_cpu(psataPayload->tag);
2694 	u32 port_id = le32_to_cpu(psataPayload->port_id);
2695 	u32 dev_id = le32_to_cpu(psataPayload->device_id);
2696 	unsigned long flags;
2697 
2698 	ccb = &pm8001_ha->ccb_info[tag];
2699 
2700 	if (ccb) {
2701 		t = ccb->task;
2702 		pm8001_dev = ccb->device;
2703 	} else {
2704 		pm8001_dbg(pm8001_ha, FAIL, "No CCB !!!. returning\n");
2705 	}
2706 	if (event)
2707 		pm8001_dbg(pm8001_ha, FAIL, "SATA EVENT 0x%x\n", event);
2708 
2709 	/* Check if this is NCQ error */
2710 	if (event == IO_XFER_ERROR_ABORTED_NCQ_MODE) {
2711 		/* find device using device id */
2712 		pm8001_dev = pm8001_find_dev(pm8001_ha, dev_id);
2713 		/* send read log extension */
2714 		if (pm8001_dev)
2715 			pm8001_send_read_log(pm8001_ha, pm8001_dev);
2716 		return;
2717 	}
2718 
2719 	ccb = &pm8001_ha->ccb_info[tag];
2720 	t = ccb->task;
2721 	pm8001_dev = ccb->device;
2722 	if (event)
2723 		pm8001_dbg(pm8001_ha, FAIL, "sata IO status 0x%x\n", event);
2724 	if (unlikely(!t || !t->lldd_task || !t->dev))
2725 		return;
2726 	ts = &t->task_status;
2727 	pm8001_dbg(pm8001_ha, DEVIO,
2728 		   "port_id:0x%x, device_id:0x%x, tag:0x%x, event:0x%x\n",
2729 		   port_id, dev_id, tag, event);
2730 	switch (event) {
2731 	case IO_OVERFLOW:
2732 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
2733 		ts->resp = SAS_TASK_COMPLETE;
2734 		ts->stat = SAS_DATA_OVERRUN;
2735 		ts->residual = 0;
2736 		if (pm8001_dev)
2737 			atomic_dec(&pm8001_dev->running_req);
2738 		break;
2739 	case IO_XFER_ERROR_BREAK:
2740 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2741 		ts->resp = SAS_TASK_COMPLETE;
2742 		ts->stat = SAS_INTERRUPTED;
2743 		break;
2744 	case IO_XFER_ERROR_PHY_NOT_READY:
2745 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
2746 		ts->resp = SAS_TASK_COMPLETE;
2747 		ts->stat = SAS_OPEN_REJECT;
2748 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2749 		break;
2750 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2751 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2752 		ts->resp = SAS_TASK_COMPLETE;
2753 		ts->stat = SAS_OPEN_REJECT;
2754 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2755 		break;
2756 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2757 		pm8001_dbg(pm8001_ha, IO,
2758 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2759 		ts->resp = SAS_TASK_COMPLETE;
2760 		ts->stat = SAS_OPEN_REJECT;
2761 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2762 		break;
2763 	case IO_OPEN_CNX_ERROR_BREAK:
2764 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2765 		ts->resp = SAS_TASK_COMPLETE;
2766 		ts->stat = SAS_OPEN_REJECT;
2767 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2768 		break;
2769 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2770 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2771 		ts->resp = SAS_TASK_UNDELIVERED;
2772 		ts->stat = SAS_DEV_NO_RESPONSE;
2773 		if (!t->uldd_task) {
2774 			pm8001_handle_event(pm8001_ha,
2775 				pm8001_dev,
2776 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2777 			ts->resp = SAS_TASK_COMPLETE;
2778 			ts->stat = SAS_QUEUE_FULL;
2779 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2780 			return;
2781 		}
2782 		break;
2783 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2784 		pm8001_dbg(pm8001_ha, IO,
2785 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2786 		ts->resp = SAS_TASK_UNDELIVERED;
2787 		ts->stat = SAS_OPEN_REJECT;
2788 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2789 		break;
2790 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2791 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2792 		ts->resp = SAS_TASK_COMPLETE;
2793 		ts->stat = SAS_OPEN_REJECT;
2794 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2795 		break;
2796 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2797 		pm8001_dbg(pm8001_ha, IO,
2798 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2799 		ts->resp = SAS_TASK_COMPLETE;
2800 		ts->stat = SAS_OPEN_REJECT;
2801 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2802 		break;
2803 	case IO_XFER_ERROR_NAK_RECEIVED:
2804 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
2805 		ts->resp = SAS_TASK_COMPLETE;
2806 		ts->stat = SAS_NAK_R_ERR;
2807 		break;
2808 	case IO_XFER_ERROR_PEER_ABORTED:
2809 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PEER_ABORTED\n");
2810 		ts->resp = SAS_TASK_COMPLETE;
2811 		ts->stat = SAS_NAK_R_ERR;
2812 		break;
2813 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2814 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_REJECTED_NCQ_MODE\n");
2815 		ts->resp = SAS_TASK_COMPLETE;
2816 		ts->stat = SAS_DATA_UNDERRUN;
2817 		break;
2818 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2819 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
2820 		ts->resp = SAS_TASK_COMPLETE;
2821 		ts->stat = SAS_OPEN_TO;
2822 		break;
2823 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2824 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_UNEXPECTED_PHASE\n");
2825 		ts->resp = SAS_TASK_COMPLETE;
2826 		ts->stat = SAS_OPEN_TO;
2827 		break;
2828 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2829 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_XFER_RDY_OVERRUN\n");
2830 		ts->resp = SAS_TASK_COMPLETE;
2831 		ts->stat = SAS_OPEN_TO;
2832 		break;
2833 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2834 		pm8001_dbg(pm8001_ha, IO,
2835 			   "IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n");
2836 		ts->resp = SAS_TASK_COMPLETE;
2837 		ts->stat = SAS_OPEN_TO;
2838 		break;
2839 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2840 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
2841 		ts->resp = SAS_TASK_COMPLETE;
2842 		ts->stat = SAS_OPEN_TO;
2843 		break;
2844 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2845 		pm8001_dbg(pm8001_ha, IO,
2846 			   "IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n");
2847 		ts->resp = SAS_TASK_COMPLETE;
2848 		ts->stat = SAS_OPEN_TO;
2849 		break;
2850 	case IO_XFER_CMD_FRAME_ISSUED:
2851 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_CMD_FRAME_ISSUED\n");
2852 		break;
2853 	case IO_XFER_PIO_SETUP_ERROR:
2854 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_PIO_SETUP_ERROR\n");
2855 		ts->resp = SAS_TASK_COMPLETE;
2856 		ts->stat = SAS_OPEN_TO;
2857 		break;
2858 	default:
2859 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", event);
2860 		/* not allowed case. Therefore, return failed status */
2861 		ts->resp = SAS_TASK_COMPLETE;
2862 		ts->stat = SAS_OPEN_TO;
2863 		break;
2864 	}
2865 	spin_lock_irqsave(&t->task_state_lock, flags);
2866 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2867 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2868 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2869 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2870 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2871 		pm8001_dbg(pm8001_ha, FAIL,
2872 			   "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
2873 			   t, event, ts->resp, ts->stat);
2874 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2875 	} else {
2876 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2877 		pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2878 	}
2879 }
2880 
2881 /*See the comments for mpi_ssp_completion */
2882 static void
2883 mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2884 {
2885 	struct sas_task *t;
2886 	struct pm8001_ccb_info *ccb;
2887 	unsigned long flags;
2888 	u32 status;
2889 	u32 tag;
2890 	struct smp_completion_resp *psmpPayload;
2891 	struct task_status_struct *ts;
2892 	struct pm8001_device *pm8001_dev;
2893 
2894 	psmpPayload = (struct smp_completion_resp *)(piomb + 4);
2895 	status = le32_to_cpu(psmpPayload->status);
2896 	tag = le32_to_cpu(psmpPayload->tag);
2897 
2898 	ccb = &pm8001_ha->ccb_info[tag];
2899 	t = ccb->task;
2900 	ts = &t->task_status;
2901 	pm8001_dev = ccb->device;
2902 	if (status) {
2903 		pm8001_dbg(pm8001_ha, FAIL, "smp IO status 0x%x\n", status);
2904 		pm8001_dbg(pm8001_ha, IOERR,
2905 			   "status:0x%x, tag:0x%x, task:0x%p\n",
2906 			   status, tag, t);
2907 	}
2908 	if (unlikely(!t || !t->lldd_task || !t->dev))
2909 		return;
2910 
2911 	switch (status) {
2912 	case IO_SUCCESS:
2913 		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
2914 		ts->resp = SAS_TASK_COMPLETE;
2915 		ts->stat = SAM_STAT_GOOD;
2916 		if (pm8001_dev)
2917 			atomic_dec(&pm8001_dev->running_req);
2918 		break;
2919 	case IO_ABORTED:
2920 		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB\n");
2921 		ts->resp = SAS_TASK_COMPLETE;
2922 		ts->stat = SAS_ABORTED_TASK;
2923 		if (pm8001_dev)
2924 			atomic_dec(&pm8001_dev->running_req);
2925 		break;
2926 	case IO_OVERFLOW:
2927 		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
2928 		ts->resp = SAS_TASK_COMPLETE;
2929 		ts->stat = SAS_DATA_OVERRUN;
2930 		ts->residual = 0;
2931 		if (pm8001_dev)
2932 			atomic_dec(&pm8001_dev->running_req);
2933 		break;
2934 	case IO_NO_DEVICE:
2935 		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
2936 		ts->resp = SAS_TASK_COMPLETE;
2937 		ts->stat = SAS_PHY_DOWN;
2938 		break;
2939 	case IO_ERROR_HW_TIMEOUT:
2940 		pm8001_dbg(pm8001_ha, IO, "IO_ERROR_HW_TIMEOUT\n");
2941 		ts->resp = SAS_TASK_COMPLETE;
2942 		ts->stat = SAM_STAT_BUSY;
2943 		break;
2944 	case IO_XFER_ERROR_BREAK:
2945 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
2946 		ts->resp = SAS_TASK_COMPLETE;
2947 		ts->stat = SAM_STAT_BUSY;
2948 		break;
2949 	case IO_XFER_ERROR_PHY_NOT_READY:
2950 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
2951 		ts->resp = SAS_TASK_COMPLETE;
2952 		ts->stat = SAM_STAT_BUSY;
2953 		break;
2954 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2955 		pm8001_dbg(pm8001_ha, IO,
2956 			   "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
2957 		ts->resp = SAS_TASK_COMPLETE;
2958 		ts->stat = SAS_OPEN_REJECT;
2959 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2960 		break;
2961 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2962 		pm8001_dbg(pm8001_ha, IO,
2963 			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
2964 		ts->resp = SAS_TASK_COMPLETE;
2965 		ts->stat = SAS_OPEN_REJECT;
2966 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2967 		break;
2968 	case IO_OPEN_CNX_ERROR_BREAK:
2969 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
2970 		ts->resp = SAS_TASK_COMPLETE;
2971 		ts->stat = SAS_OPEN_REJECT;
2972 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2973 		break;
2974 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2975 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
2976 		ts->resp = SAS_TASK_COMPLETE;
2977 		ts->stat = SAS_OPEN_REJECT;
2978 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2979 		pm8001_handle_event(pm8001_ha,
2980 				pm8001_dev,
2981 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2982 		break;
2983 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2984 		pm8001_dbg(pm8001_ha, IO,
2985 			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
2986 		ts->resp = SAS_TASK_COMPLETE;
2987 		ts->stat = SAS_OPEN_REJECT;
2988 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2989 		break;
2990 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2991 		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
2992 		ts->resp = SAS_TASK_COMPLETE;
2993 		ts->stat = SAS_OPEN_REJECT;
2994 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2995 		break;
2996 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2997 		pm8001_dbg(pm8001_ha, IO,
2998 			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
2999 		ts->resp = SAS_TASK_COMPLETE;
3000 		ts->stat = SAS_OPEN_REJECT;
3001 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
3002 		break;
3003 	case IO_XFER_ERROR_RX_FRAME:
3004 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_RX_FRAME\n");
3005 		ts->resp = SAS_TASK_COMPLETE;
3006 		ts->stat = SAS_DEV_NO_RESPONSE;
3007 		break;
3008 	case IO_XFER_OPEN_RETRY_TIMEOUT:
3009 		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
3010 		ts->resp = SAS_TASK_COMPLETE;
3011 		ts->stat = SAS_OPEN_REJECT;
3012 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3013 		break;
3014 	case IO_ERROR_INTERNAL_SMP_RESOURCE:
3015 		pm8001_dbg(pm8001_ha, IO, "IO_ERROR_INTERNAL_SMP_RESOURCE\n");
3016 		ts->resp = SAS_TASK_COMPLETE;
3017 		ts->stat = SAS_QUEUE_FULL;
3018 		break;
3019 	case IO_PORT_IN_RESET:
3020 		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
3021 		ts->resp = SAS_TASK_COMPLETE;
3022 		ts->stat = SAS_OPEN_REJECT;
3023 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3024 		break;
3025 	case IO_DS_NON_OPERATIONAL:
3026 		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
3027 		ts->resp = SAS_TASK_COMPLETE;
3028 		ts->stat = SAS_DEV_NO_RESPONSE;
3029 		break;
3030 	case IO_DS_IN_RECOVERY:
3031 		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_RECOVERY\n");
3032 		ts->resp = SAS_TASK_COMPLETE;
3033 		ts->stat = SAS_OPEN_REJECT;
3034 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3035 		break;
3036 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
3037 		pm8001_dbg(pm8001_ha, IO,
3038 			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
3039 		ts->resp = SAS_TASK_COMPLETE;
3040 		ts->stat = SAS_OPEN_REJECT;
3041 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3042 		break;
3043 	default:
3044 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
3045 		ts->resp = SAS_TASK_COMPLETE;
3046 		ts->stat = SAS_DEV_NO_RESPONSE;
3047 		/* not allowed case. Therefore, return failed status */
3048 		break;
3049 	}
3050 	spin_lock_irqsave(&t->task_state_lock, flags);
3051 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
3052 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
3053 	t->task_state_flags |= SAS_TASK_STATE_DONE;
3054 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
3055 		spin_unlock_irqrestore(&t->task_state_lock, flags);
3056 		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",
3057 			   t, status, ts->resp, ts->stat);
3058 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3059 	} else {
3060 		spin_unlock_irqrestore(&t->task_state_lock, flags);
3061 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3062 		mb();/* in order to force CPU ordering */
3063 		t->task_done(t);
3064 	}
3065 }
3066 
3067 void pm8001_mpi_set_dev_state_resp(struct pm8001_hba_info *pm8001_ha,
3068 		void *piomb)
3069 {
3070 	struct set_dev_state_resp *pPayload =
3071 		(struct set_dev_state_resp *)(piomb + 4);
3072 	u32 tag = le32_to_cpu(pPayload->tag);
3073 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3074 	struct pm8001_device *pm8001_dev = ccb->device;
3075 	u32 status = le32_to_cpu(pPayload->status);
3076 	u32 device_id = le32_to_cpu(pPayload->device_id);
3077 	u8 pds = le32_to_cpu(pPayload->pds_nds) & PDS_BITS;
3078 	u8 nds = le32_to_cpu(pPayload->pds_nds) & NDS_BITS;
3079 	pm8001_dbg(pm8001_ha, MSG, "Set device id = 0x%x state from 0x%x to 0x%x status = 0x%x!\n",
3080 		   device_id, pds, nds, status);
3081 	complete(pm8001_dev->setds_completion);
3082 	ccb->task = NULL;
3083 	ccb->ccb_tag = 0xFFFFFFFF;
3084 	pm8001_tag_free(pm8001_ha, tag);
3085 }
3086 
3087 void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3088 {
3089 	struct get_nvm_data_resp *pPayload =
3090 		(struct get_nvm_data_resp *)(piomb + 4);
3091 	u32 tag = le32_to_cpu(pPayload->tag);
3092 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3093 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
3094 	complete(pm8001_ha->nvmd_completion);
3095 	pm8001_dbg(pm8001_ha, MSG, "Set nvm data complete!\n");
3096 	if ((dlen_status & NVMD_STAT) != 0) {
3097 		pm8001_dbg(pm8001_ha, FAIL, "Set nvm data error %x\n",
3098 				dlen_status);
3099 	}
3100 	ccb->task = NULL;
3101 	ccb->ccb_tag = 0xFFFFFFFF;
3102 	pm8001_tag_free(pm8001_ha, tag);
3103 }
3104 
3105 void
3106 pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3107 {
3108 	struct fw_control_ex    *fw_control_context;
3109 	struct get_nvm_data_resp *pPayload =
3110 		(struct get_nvm_data_resp *)(piomb + 4);
3111 	u32 tag = le32_to_cpu(pPayload->tag);
3112 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3113 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
3114 	u32 ir_tds_bn_dps_das_nvm =
3115 		le32_to_cpu(pPayload->ir_tda_bn_dps_das_nvm);
3116 	void *virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr;
3117 	fw_control_context = ccb->fw_control_context;
3118 
3119 	pm8001_dbg(pm8001_ha, MSG, "Get nvm data complete!\n");
3120 	if ((dlen_status & NVMD_STAT) != 0) {
3121 		pm8001_dbg(pm8001_ha, FAIL, "Get nvm data error %x\n",
3122 				dlen_status);
3123 		complete(pm8001_ha->nvmd_completion);
3124 		/* We should free tag during failure also, the tag is not being
3125 		 * freed by requesting path anywhere.
3126 		 */
3127 		ccb->task = NULL;
3128 		ccb->ccb_tag = 0xFFFFFFFF;
3129 		pm8001_tag_free(pm8001_ha, tag);
3130 		return;
3131 	}
3132 	if (ir_tds_bn_dps_das_nvm & IPMode) {
3133 		/* indirect mode - IR bit set */
3134 		pm8001_dbg(pm8001_ha, MSG, "Get NVMD success, IR=1\n");
3135 		if ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == TWI_DEVICE) {
3136 			if (ir_tds_bn_dps_das_nvm == 0x80a80200) {
3137 				memcpy(pm8001_ha->sas_addr,
3138 				      ((u8 *)virt_addr + 4),
3139 				       SAS_ADDR_SIZE);
3140 				pm8001_dbg(pm8001_ha, MSG, "Get SAS address from VPD successfully!\n");
3141 			}
3142 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == C_SEEPROM)
3143 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == VPD_FLASH) ||
3144 			((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == EXPAN_ROM)) {
3145 				;
3146 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == AAP1_RDUMP)
3147 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == IOP_RDUMP)) {
3148 			;
3149 		} else {
3150 			/* Should not be happened*/
3151 			pm8001_dbg(pm8001_ha, MSG,
3152 				   "(IR=1)Wrong Device type 0x%x\n",
3153 				   ir_tds_bn_dps_das_nvm);
3154 		}
3155 	} else /* direct mode */{
3156 		pm8001_dbg(pm8001_ha, MSG,
3157 			   "Get NVMD success, IR=0, dataLen=%d\n",
3158 			   (dlen_status & NVMD_LEN) >> 24);
3159 	}
3160 	/* Though fw_control_context is freed below, usrAddr still needs
3161 	 * to be updated as this holds the response to the request function
3162 	 */
3163 	memcpy(fw_control_context->usrAddr,
3164 		pm8001_ha->memoryMap.region[NVMD].virt_ptr,
3165 		fw_control_context->len);
3166 	kfree(ccb->fw_control_context);
3167 	/* To avoid race condition, complete should be
3168 	 * called after the message is copied to
3169 	 * fw_control_context->usrAddr
3170 	 */
3171 	complete(pm8001_ha->nvmd_completion);
3172 	pm8001_dbg(pm8001_ha, MSG, "Set nvm data complete!\n");
3173 	ccb->task = NULL;
3174 	ccb->ccb_tag = 0xFFFFFFFF;
3175 	pm8001_tag_free(pm8001_ha, tag);
3176 }
3177 
3178 int pm8001_mpi_local_phy_ctl(struct pm8001_hba_info *pm8001_ha, void *piomb)
3179 {
3180 	u32 tag;
3181 	struct local_phy_ctl_resp *pPayload =
3182 		(struct local_phy_ctl_resp *)(piomb + 4);
3183 	u32 status = le32_to_cpu(pPayload->status);
3184 	u32 phy_id = le32_to_cpu(pPayload->phyop_phyid) & ID_BITS;
3185 	u32 phy_op = le32_to_cpu(pPayload->phyop_phyid) & OP_BITS;
3186 	tag = le32_to_cpu(pPayload->tag);
3187 	if (status != 0) {
3188 		pm8001_dbg(pm8001_ha, MSG,
3189 			   "%x phy execute %x phy op failed!\n",
3190 			   phy_id, phy_op);
3191 	} else {
3192 		pm8001_dbg(pm8001_ha, MSG,
3193 			   "%x phy execute %x phy op success!\n",
3194 			   phy_id, phy_op);
3195 		pm8001_ha->phy[phy_id].reset_success = true;
3196 	}
3197 	if (pm8001_ha->phy[phy_id].enable_completion) {
3198 		complete(pm8001_ha->phy[phy_id].enable_completion);
3199 		pm8001_ha->phy[phy_id].enable_completion = NULL;
3200 	}
3201 	pm8001_tag_free(pm8001_ha, tag);
3202 	return 0;
3203 }
3204 
3205 /**
3206  * pm8001_bytes_dmaed - one of the interface function communication with libsas
3207  * @pm8001_ha: our hba card information
3208  * @i: which phy that received the event.
3209  *
3210  * when HBA driver received the identify done event or initiate FIS received
3211  * event(for SATA), it will invoke this function to notify the sas layer that
3212  * the sas toplogy has formed, please discover the the whole sas domain,
3213  * while receive a broadcast(change) primitive just tell the sas
3214  * layer to discover the changed domain rather than the whole domain.
3215  */
3216 void pm8001_bytes_dmaed(struct pm8001_hba_info *pm8001_ha, int i)
3217 {
3218 	struct pm8001_phy *phy = &pm8001_ha->phy[i];
3219 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
3220 	if (!phy->phy_attached)
3221 		return;
3222 
3223 	if (sas_phy->phy) {
3224 		struct sas_phy *sphy = sas_phy->phy;
3225 		sphy->negotiated_linkrate = sas_phy->linkrate;
3226 		sphy->minimum_linkrate = phy->minimum_linkrate;
3227 		sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
3228 		sphy->maximum_linkrate = phy->maximum_linkrate;
3229 		sphy->maximum_linkrate_hw = phy->maximum_linkrate;
3230 	}
3231 
3232 	if (phy->phy_type & PORT_TYPE_SAS) {
3233 		struct sas_identify_frame *id;
3234 		id = (struct sas_identify_frame *)phy->frame_rcvd;
3235 		id->dev_type = phy->identify.device_type;
3236 		id->initiator_bits = SAS_PROTOCOL_ALL;
3237 		id->target_bits = phy->identify.target_port_protocols;
3238 	} else if (phy->phy_type & PORT_TYPE_SATA) {
3239 		/*Nothing*/
3240 	}
3241 	pm8001_dbg(pm8001_ha, MSG, "phy %d byte dmaded.\n", i);
3242 
3243 	sas_phy->frame_rcvd_size = phy->frame_rcvd_size;
3244 	sas_notify_port_event(sas_phy, PORTE_BYTES_DMAED, GFP_ATOMIC);
3245 }
3246 
3247 /* Get the link rate speed  */
3248 void pm8001_get_lrate_mode(struct pm8001_phy *phy, u8 link_rate)
3249 {
3250 	struct sas_phy *sas_phy = phy->sas_phy.phy;
3251 
3252 	switch (link_rate) {
3253 	case PHY_SPEED_120:
3254 		phy->sas_phy.linkrate = SAS_LINK_RATE_12_0_GBPS;
3255 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_12_0_GBPS;
3256 		break;
3257 	case PHY_SPEED_60:
3258 		phy->sas_phy.linkrate = SAS_LINK_RATE_6_0_GBPS;
3259 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_6_0_GBPS;
3260 		break;
3261 	case PHY_SPEED_30:
3262 		phy->sas_phy.linkrate = SAS_LINK_RATE_3_0_GBPS;
3263 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS;
3264 		break;
3265 	case PHY_SPEED_15:
3266 		phy->sas_phy.linkrate = SAS_LINK_RATE_1_5_GBPS;
3267 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_1_5_GBPS;
3268 		break;
3269 	}
3270 	sas_phy->negotiated_linkrate = phy->sas_phy.linkrate;
3271 	sas_phy->maximum_linkrate_hw = SAS_LINK_RATE_6_0_GBPS;
3272 	sas_phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
3273 	sas_phy->maximum_linkrate = SAS_LINK_RATE_6_0_GBPS;
3274 	sas_phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
3275 }
3276 
3277 /**
3278  * pm8001_get_attached_sas_addr - extract/generate attached SAS address
3279  * @phy: pointer to asd_phy
3280  * @sas_addr: pointer to buffer where the SAS address is to be written
3281  *
3282  * This function extracts the SAS address from an IDENTIFY frame
3283  * received.  If OOB is SATA, then a SAS address is generated from the
3284  * HA tables.
3285  *
3286  * LOCKING: the frame_rcvd_lock needs to be held since this parses the frame
3287  * buffer.
3288  */
3289 void pm8001_get_attached_sas_addr(struct pm8001_phy *phy,
3290 	u8 *sas_addr)
3291 {
3292 	if (phy->sas_phy.frame_rcvd[0] == 0x34
3293 		&& phy->sas_phy.oob_mode == SATA_OOB_MODE) {
3294 		struct pm8001_hba_info *pm8001_ha = phy->sas_phy.ha->lldd_ha;
3295 		/* FIS device-to-host */
3296 		u64 addr = be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr);
3297 		addr += phy->sas_phy.id;
3298 		*(__be64 *)sas_addr = cpu_to_be64(addr);
3299 	} else {
3300 		struct sas_identify_frame *idframe =
3301 			(void *) phy->sas_phy.frame_rcvd;
3302 		memcpy(sas_addr, idframe->sas_addr, SAS_ADDR_SIZE);
3303 	}
3304 }
3305 
3306 /**
3307  * pm8001_hw_event_ack_req- For PM8001,some events need to acknowage to FW.
3308  * @pm8001_ha: our hba card information
3309  * @Qnum: the outbound queue message number.
3310  * @SEA: source of event to ack
3311  * @port_id: port id.
3312  * @phyId: phy id.
3313  * @param0: parameter 0.
3314  * @param1: parameter 1.
3315  */
3316 static void pm8001_hw_event_ack_req(struct pm8001_hba_info *pm8001_ha,
3317 	u32 Qnum, u32 SEA, u32 port_id, u32 phyId, u32 param0, u32 param1)
3318 {
3319 	struct hw_event_ack_req	 payload;
3320 	u32 opc = OPC_INB_SAS_HW_EVENT_ACK;
3321 
3322 	struct inbound_queue_table *circularQ;
3323 
3324 	memset((u8 *)&payload, 0, sizeof(payload));
3325 	circularQ = &pm8001_ha->inbnd_q_tbl[Qnum];
3326 	payload.tag = cpu_to_le32(1);
3327 	payload.sea_phyid_portid = cpu_to_le32(((SEA & 0xFFFF) << 8) |
3328 		((phyId & 0x0F) << 4) | (port_id & 0x0F));
3329 	payload.param0 = cpu_to_le32(param0);
3330 	payload.param1 = cpu_to_le32(param1);
3331 	pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
3332 			sizeof(payload), 0);
3333 }
3334 
3335 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
3336 	u32 phyId, u32 phy_op);
3337 
3338 /**
3339  * hw_event_sas_phy_up -FW tells me a SAS phy up event.
3340  * @pm8001_ha: our hba card information
3341  * @piomb: IO message buffer
3342  */
3343 static void
3344 hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3345 {
3346 	struct hw_event_resp *pPayload =
3347 		(struct hw_event_resp *)(piomb + 4);
3348 	u32 lr_evt_status_phyid_portid =
3349 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3350 	u8 link_rate =
3351 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3352 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3353 	u8 phy_id =
3354 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3355 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3356 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3357 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3358 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3359 	unsigned long flags;
3360 	u8 deviceType = pPayload->sas_identify.dev_type;
3361 	port->port_state =  portstate;
3362 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3363 	pm8001_dbg(pm8001_ha, MSG,
3364 		   "HW_EVENT_SAS_PHY_UP port id = %d, phy id = %d\n",
3365 		   port_id, phy_id);
3366 
3367 	switch (deviceType) {
3368 	case SAS_PHY_UNUSED:
3369 		pm8001_dbg(pm8001_ha, MSG, "device type no device.\n");
3370 		break;
3371 	case SAS_END_DEVICE:
3372 		pm8001_dbg(pm8001_ha, MSG, "end device.\n");
3373 		pm8001_chip_phy_ctl_req(pm8001_ha, phy_id,
3374 			PHY_NOTIFY_ENABLE_SPINUP);
3375 		port->port_attached = 1;
3376 		pm8001_get_lrate_mode(phy, link_rate);
3377 		break;
3378 	case SAS_EDGE_EXPANDER_DEVICE:
3379 		pm8001_dbg(pm8001_ha, MSG, "expander device.\n");
3380 		port->port_attached = 1;
3381 		pm8001_get_lrate_mode(phy, link_rate);
3382 		break;
3383 	case SAS_FANOUT_EXPANDER_DEVICE:
3384 		pm8001_dbg(pm8001_ha, MSG, "fanout expander device.\n");
3385 		port->port_attached = 1;
3386 		pm8001_get_lrate_mode(phy, link_rate);
3387 		break;
3388 	default:
3389 		pm8001_dbg(pm8001_ha, DEVIO, "unknown device type(%x)\n",
3390 			   deviceType);
3391 		break;
3392 	}
3393 	phy->phy_type |= PORT_TYPE_SAS;
3394 	phy->identify.device_type = deviceType;
3395 	phy->phy_attached = 1;
3396 	if (phy->identify.device_type == SAS_END_DEVICE)
3397 		phy->identify.target_port_protocols = SAS_PROTOCOL_SSP;
3398 	else if (phy->identify.device_type != SAS_PHY_UNUSED)
3399 		phy->identify.target_port_protocols = SAS_PROTOCOL_SMP;
3400 	phy->sas_phy.oob_mode = SAS_OOB_MODE;
3401 	sas_notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE, GFP_ATOMIC);
3402 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3403 	memcpy(phy->frame_rcvd, &pPayload->sas_identify,
3404 		sizeof(struct sas_identify_frame)-4);
3405 	phy->frame_rcvd_size = sizeof(struct sas_identify_frame) - 4;
3406 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3407 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3408 	if (pm8001_ha->flags == PM8001F_RUN_TIME)
3409 		mdelay(200);/*delay a moment to wait disk to spinup*/
3410 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3411 }
3412 
3413 /**
3414  * hw_event_sata_phy_up -FW tells me a SATA phy up event.
3415  * @pm8001_ha: our hba card information
3416  * @piomb: IO message buffer
3417  */
3418 static void
3419 hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3420 {
3421 	struct hw_event_resp *pPayload =
3422 		(struct hw_event_resp *)(piomb + 4);
3423 	u32 lr_evt_status_phyid_portid =
3424 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3425 	u8 link_rate =
3426 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3427 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3428 	u8 phy_id =
3429 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3430 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3431 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3432 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3433 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3434 	unsigned long flags;
3435 	pm8001_dbg(pm8001_ha, DEVIO, "HW_EVENT_SATA_PHY_UP port id = %d, phy id = %d\n",
3436 		   port_id, phy_id);
3437 	port->port_state =  portstate;
3438 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3439 	port->port_attached = 1;
3440 	pm8001_get_lrate_mode(phy, link_rate);
3441 	phy->phy_type |= PORT_TYPE_SATA;
3442 	phy->phy_attached = 1;
3443 	phy->sas_phy.oob_mode = SATA_OOB_MODE;
3444 	sas_notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE, GFP_ATOMIC);
3445 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3446 	memcpy(phy->frame_rcvd, ((u8 *)&pPayload->sata_fis - 4),
3447 		sizeof(struct dev_to_host_fis));
3448 	phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
3449 	phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
3450 	phy->identify.device_type = SAS_SATA_DEV;
3451 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3452 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3453 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3454 }
3455 
3456 /**
3457  * hw_event_phy_down -we should notify the libsas the phy is down.
3458  * @pm8001_ha: our hba card information
3459  * @piomb: IO message buffer
3460  */
3461 static void
3462 hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb)
3463 {
3464 	struct hw_event_resp *pPayload =
3465 		(struct hw_event_resp *)(piomb + 4);
3466 	u32 lr_evt_status_phyid_portid =
3467 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3468 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3469 	u8 phy_id =
3470 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3471 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3472 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3473 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3474 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3475 	port->port_state =  portstate;
3476 	phy->phy_type = 0;
3477 	phy->identify.device_type = 0;
3478 	phy->phy_attached = 0;
3479 	memset(&phy->dev_sas_addr, 0, SAS_ADDR_SIZE);
3480 	switch (portstate) {
3481 	case PORT_VALID:
3482 		break;
3483 	case PORT_INVALID:
3484 		pm8001_dbg(pm8001_ha, MSG, " PortInvalid portID %d\n",
3485 			   port_id);
3486 		pm8001_dbg(pm8001_ha, MSG,
3487 			   " Last phy Down and port invalid\n");
3488 		port->port_attached = 0;
3489 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3490 			port_id, phy_id, 0, 0);
3491 		break;
3492 	case PORT_IN_RESET:
3493 		pm8001_dbg(pm8001_ha, MSG, " Port In Reset portID %d\n",
3494 			   port_id);
3495 		break;
3496 	case PORT_NOT_ESTABLISHED:
3497 		pm8001_dbg(pm8001_ha, MSG,
3498 			   " phy Down and PORT_NOT_ESTABLISHED\n");
3499 		port->port_attached = 0;
3500 		break;
3501 	case PORT_LOSTCOMM:
3502 		pm8001_dbg(pm8001_ha, MSG, " phy Down and PORT_LOSTCOMM\n");
3503 		pm8001_dbg(pm8001_ha, MSG,
3504 			   " Last phy Down and port invalid\n");
3505 		port->port_attached = 0;
3506 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3507 			port_id, phy_id, 0, 0);
3508 		break;
3509 	default:
3510 		port->port_attached = 0;
3511 		pm8001_dbg(pm8001_ha, DEVIO, " phy Down and(default) = %x\n",
3512 			   portstate);
3513 		break;
3514 
3515 	}
3516 }
3517 
3518 /**
3519  * pm8001_mpi_reg_resp -process register device ID response.
3520  * @pm8001_ha: our hba card information
3521  * @piomb: IO message buffer
3522  *
3523  * when sas layer find a device it will notify LLDD, then the driver register
3524  * the domain device to FW, this event is the return device ID which the FW
3525  * has assigned, from now,inter-communication with FW is no longer using the
3526  * SAS address, use device ID which FW assigned.
3527  */
3528 int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3529 {
3530 	u32 status;
3531 	u32 device_id;
3532 	u32 htag;
3533 	struct pm8001_ccb_info *ccb;
3534 	struct pm8001_device *pm8001_dev;
3535 	struct dev_reg_resp *registerRespPayload =
3536 		(struct dev_reg_resp *)(piomb + 4);
3537 
3538 	htag = le32_to_cpu(registerRespPayload->tag);
3539 	ccb = &pm8001_ha->ccb_info[htag];
3540 	pm8001_dev = ccb->device;
3541 	status = le32_to_cpu(registerRespPayload->status);
3542 	device_id = le32_to_cpu(registerRespPayload->device_id);
3543 	pm8001_dbg(pm8001_ha, MSG, " register device is status = %d\n",
3544 		   status);
3545 	switch (status) {
3546 	case DEVREG_SUCCESS:
3547 		pm8001_dbg(pm8001_ha, MSG, "DEVREG_SUCCESS\n");
3548 		pm8001_dev->device_id = device_id;
3549 		break;
3550 	case DEVREG_FAILURE_OUT_OF_RESOURCE:
3551 		pm8001_dbg(pm8001_ha, MSG, "DEVREG_FAILURE_OUT_OF_RESOURCE\n");
3552 		break;
3553 	case DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED:
3554 		pm8001_dbg(pm8001_ha, MSG,
3555 			   "DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED\n");
3556 		break;
3557 	case DEVREG_FAILURE_INVALID_PHY_ID:
3558 		pm8001_dbg(pm8001_ha, MSG, "DEVREG_FAILURE_INVALID_PHY_ID\n");
3559 		break;
3560 	case DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED:
3561 		pm8001_dbg(pm8001_ha, MSG,
3562 			   "DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED\n");
3563 		break;
3564 	case DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE:
3565 		pm8001_dbg(pm8001_ha, MSG,
3566 			   "DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE\n");
3567 		break;
3568 	case DEVREG_FAILURE_PORT_NOT_VALID_STATE:
3569 		pm8001_dbg(pm8001_ha, MSG,
3570 			   "DEVREG_FAILURE_PORT_NOT_VALID_STATE\n");
3571 		break;
3572 	case DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID:
3573 		pm8001_dbg(pm8001_ha, MSG,
3574 			   "DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID\n");
3575 		break;
3576 	default:
3577 		pm8001_dbg(pm8001_ha, MSG,
3578 			   "DEVREG_FAILURE_DEVICE_TYPE_NOT_SUPPORTED\n");
3579 		break;
3580 	}
3581 	complete(pm8001_dev->dcompletion);
3582 	ccb->task = NULL;
3583 	ccb->ccb_tag = 0xFFFFFFFF;
3584 	pm8001_tag_free(pm8001_ha, htag);
3585 	return 0;
3586 }
3587 
3588 int pm8001_mpi_dereg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3589 {
3590 	u32 status;
3591 	u32 device_id;
3592 	struct dev_reg_resp *registerRespPayload =
3593 		(struct dev_reg_resp *)(piomb + 4);
3594 
3595 	status = le32_to_cpu(registerRespPayload->status);
3596 	device_id = le32_to_cpu(registerRespPayload->device_id);
3597 	if (status != 0)
3598 		pm8001_dbg(pm8001_ha, MSG,
3599 			   " deregister device failed ,status = %x, device_id = %x\n",
3600 			   status, device_id);
3601 	return 0;
3602 }
3603 
3604 /**
3605  * pm8001_mpi_fw_flash_update_resp - Response from FW for flash update command.
3606  * @pm8001_ha: our hba card information
3607  * @piomb: IO message buffer
3608  */
3609 int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
3610 		void *piomb)
3611 {
3612 	u32 status;
3613 	struct fw_flash_Update_resp *ppayload =
3614 		(struct fw_flash_Update_resp *)(piomb + 4);
3615 	u32 tag = le32_to_cpu(ppayload->tag);
3616 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3617 	status = le32_to_cpu(ppayload->status);
3618 	switch (status) {
3619 	case FLASH_UPDATE_COMPLETE_PENDING_REBOOT:
3620 		pm8001_dbg(pm8001_ha, MSG,
3621 			   ": FLASH_UPDATE_COMPLETE_PENDING_REBOOT\n");
3622 		break;
3623 	case FLASH_UPDATE_IN_PROGRESS:
3624 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_IN_PROGRESS\n");
3625 		break;
3626 	case FLASH_UPDATE_HDR_ERR:
3627 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_HDR_ERR\n");
3628 		break;
3629 	case FLASH_UPDATE_OFFSET_ERR:
3630 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_OFFSET_ERR\n");
3631 		break;
3632 	case FLASH_UPDATE_CRC_ERR:
3633 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_CRC_ERR\n");
3634 		break;
3635 	case FLASH_UPDATE_LENGTH_ERR:
3636 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_LENGTH_ERR\n");
3637 		break;
3638 	case FLASH_UPDATE_HW_ERR:
3639 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_HW_ERR\n");
3640 		break;
3641 	case FLASH_UPDATE_DNLD_NOT_SUPPORTED:
3642 		pm8001_dbg(pm8001_ha, MSG,
3643 			   ": FLASH_UPDATE_DNLD_NOT_SUPPORTED\n");
3644 		break;
3645 	case FLASH_UPDATE_DISABLED:
3646 		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_DISABLED\n");
3647 		break;
3648 	default:
3649 		pm8001_dbg(pm8001_ha, DEVIO, "No matched status = %d\n",
3650 			   status);
3651 		break;
3652 	}
3653 	kfree(ccb->fw_control_context);
3654 	ccb->task = NULL;
3655 	ccb->ccb_tag = 0xFFFFFFFF;
3656 	pm8001_tag_free(pm8001_ha, tag);
3657 	complete(pm8001_ha->nvmd_completion);
3658 	return 0;
3659 }
3660 
3661 int pm8001_mpi_general_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
3662 {
3663 	u32 status;
3664 	int i;
3665 	struct general_event_resp *pPayload =
3666 		(struct general_event_resp *)(piomb + 4);
3667 	status = le32_to_cpu(pPayload->status);
3668 	pm8001_dbg(pm8001_ha, MSG, " status = 0x%x\n", status);
3669 	for (i = 0; i < GENERAL_EVENT_PAYLOAD; i++)
3670 		pm8001_dbg(pm8001_ha, MSG, "inb_IOMB_payload[0x%x] 0x%x,\n",
3671 			   i,
3672 			   pPayload->inb_IOMB_payload[i]);
3673 	return 0;
3674 }
3675 
3676 int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3677 {
3678 	struct sas_task *t;
3679 	struct pm8001_ccb_info *ccb;
3680 	unsigned long flags;
3681 	u32 status ;
3682 	u32 tag, scp;
3683 	struct task_status_struct *ts;
3684 	struct pm8001_device *pm8001_dev;
3685 
3686 	struct task_abort_resp *pPayload =
3687 		(struct task_abort_resp *)(piomb + 4);
3688 
3689 	status = le32_to_cpu(pPayload->status);
3690 	tag = le32_to_cpu(pPayload->tag);
3691 	if (!tag) {
3692 		pm8001_dbg(pm8001_ha, FAIL, " TAG NULL. RETURNING !!!\n");
3693 		return -1;
3694 	}
3695 
3696 	scp = le32_to_cpu(pPayload->scp);
3697 	ccb = &pm8001_ha->ccb_info[tag];
3698 	t = ccb->task;
3699 	pm8001_dev = ccb->device; /* retrieve device */
3700 
3701 	if (!t)	{
3702 		pm8001_dbg(pm8001_ha, FAIL, " TASK NULL. RETURNING !!!\n");
3703 		return -1;
3704 	}
3705 	ts = &t->task_status;
3706 	if (status != 0)
3707 		pm8001_dbg(pm8001_ha, FAIL, "task abort failed status 0x%x ,tag = 0x%x, scp= 0x%x\n",
3708 			   status, tag, scp);
3709 	switch (status) {
3710 	case IO_SUCCESS:
3711 		pm8001_dbg(pm8001_ha, EH, "IO_SUCCESS\n");
3712 		ts->resp = SAS_TASK_COMPLETE;
3713 		ts->stat = SAM_STAT_GOOD;
3714 		break;
3715 	case IO_NOT_VALID:
3716 		pm8001_dbg(pm8001_ha, EH, "IO_NOT_VALID\n");
3717 		ts->resp = TMF_RESP_FUNC_FAILED;
3718 		break;
3719 	}
3720 	spin_lock_irqsave(&t->task_state_lock, flags);
3721 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
3722 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
3723 	t->task_state_flags |= SAS_TASK_STATE_DONE;
3724 	spin_unlock_irqrestore(&t->task_state_lock, flags);
3725 	pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3726 	mb();
3727 
3728 	if (pm8001_dev->id & NCQ_ABORT_ALL_FLAG) {
3729 		pm8001_tag_free(pm8001_ha, tag);
3730 		sas_free_task(t);
3731 		/* clear the flag */
3732 		pm8001_dev->id &= 0xBFFFFFFF;
3733 	} else
3734 		t->task_done(t);
3735 
3736 	return 0;
3737 }
3738 
3739 /**
3740  * mpi_hw_event -The hw event has come.
3741  * @pm8001_ha: our hba card information
3742  * @piomb: IO message buffer
3743  */
3744 static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
3745 {
3746 	unsigned long flags;
3747 	struct hw_event_resp *pPayload =
3748 		(struct hw_event_resp *)(piomb + 4);
3749 	u32 lr_evt_status_phyid_portid =
3750 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3751 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3752 	u8 phy_id =
3753 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3754 	u16 eventType =
3755 		(u16)((lr_evt_status_phyid_portid & 0x00FFFF00) >> 8);
3756 	u8 status =
3757 		(u8)((lr_evt_status_phyid_portid & 0x0F000000) >> 24);
3758 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3759 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3760 	struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
3761 	pm8001_dbg(pm8001_ha, DEVIO,
3762 		   "SPC HW event for portid:%d, phyid:%d, event:%x, status:%x\n",
3763 		   port_id, phy_id, eventType, status);
3764 	switch (eventType) {
3765 	case HW_EVENT_PHY_START_STATUS:
3766 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_START_STATUS status = %x\n",
3767 			   status);
3768 		if (status == 0)
3769 			phy->phy_state = 1;
3770 
3771 		if (pm8001_ha->flags == PM8001F_RUN_TIME &&
3772 				phy->enable_completion != NULL) {
3773 			complete(phy->enable_completion);
3774 			phy->enable_completion = NULL;
3775 		}
3776 		break;
3777 	case HW_EVENT_SAS_PHY_UP:
3778 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_START_STATUS\n");
3779 		hw_event_sas_phy_up(pm8001_ha, piomb);
3780 		break;
3781 	case HW_EVENT_SATA_PHY_UP:
3782 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_SATA_PHY_UP\n");
3783 		hw_event_sata_phy_up(pm8001_ha, piomb);
3784 		break;
3785 	case HW_EVENT_PHY_STOP_STATUS:
3786 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_STOP_STATUS status = %x\n",
3787 			   status);
3788 		if (status == 0)
3789 			phy->phy_state = 0;
3790 		break;
3791 	case HW_EVENT_SATA_SPINUP_HOLD:
3792 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_SATA_SPINUP_HOLD\n");
3793 		sas_notify_phy_event(&phy->sas_phy, PHYE_SPINUP_HOLD,
3794 			GFP_ATOMIC);
3795 		break;
3796 	case HW_EVENT_PHY_DOWN:
3797 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_DOWN\n");
3798 		sas_notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL,
3799 			GFP_ATOMIC);
3800 		phy->phy_attached = 0;
3801 		phy->phy_state = 0;
3802 		hw_event_phy_down(pm8001_ha, piomb);
3803 		break;
3804 	case HW_EVENT_PORT_INVALID:
3805 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_INVALID\n");
3806 		sas_phy_disconnected(sas_phy);
3807 		phy->phy_attached = 0;
3808 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3809 			GFP_ATOMIC);
3810 		break;
3811 	/* the broadcast change primitive received, tell the LIBSAS this event
3812 	to revalidate the sas domain*/
3813 	case HW_EVENT_BROADCAST_CHANGE:
3814 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_CHANGE\n");
3815 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_BROADCAST_CHANGE,
3816 			port_id, phy_id, 1, 0);
3817 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3818 		sas_phy->sas_prim = HW_EVENT_BROADCAST_CHANGE;
3819 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3820 		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
3821 			GFP_ATOMIC);
3822 		break;
3823 	case HW_EVENT_PHY_ERROR:
3824 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_ERROR\n");
3825 		sas_phy_disconnected(&phy->sas_phy);
3826 		phy->phy_attached = 0;
3827 		sas_notify_phy_event(&phy->sas_phy, PHYE_OOB_ERROR, GFP_ATOMIC);
3828 		break;
3829 	case HW_EVENT_BROADCAST_EXP:
3830 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_EXP\n");
3831 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3832 		sas_phy->sas_prim = HW_EVENT_BROADCAST_EXP;
3833 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3834 		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
3835 			GFP_ATOMIC);
3836 		break;
3837 	case HW_EVENT_LINK_ERR_INVALID_DWORD:
3838 		pm8001_dbg(pm8001_ha, MSG,
3839 			   "HW_EVENT_LINK_ERR_INVALID_DWORD\n");
3840 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3841 			HW_EVENT_LINK_ERR_INVALID_DWORD, port_id, phy_id, 0, 0);
3842 		sas_phy_disconnected(sas_phy);
3843 		phy->phy_attached = 0;
3844 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3845 			GFP_ATOMIC);
3846 		break;
3847 	case HW_EVENT_LINK_ERR_DISPARITY_ERROR:
3848 		pm8001_dbg(pm8001_ha, MSG,
3849 			   "HW_EVENT_LINK_ERR_DISPARITY_ERROR\n");
3850 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3851 			HW_EVENT_LINK_ERR_DISPARITY_ERROR,
3852 			port_id, phy_id, 0, 0);
3853 		sas_phy_disconnected(sas_phy);
3854 		phy->phy_attached = 0;
3855 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3856 			GFP_ATOMIC);
3857 		break;
3858 	case HW_EVENT_LINK_ERR_CODE_VIOLATION:
3859 		pm8001_dbg(pm8001_ha, MSG,
3860 			   "HW_EVENT_LINK_ERR_CODE_VIOLATION\n");
3861 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3862 			HW_EVENT_LINK_ERR_CODE_VIOLATION,
3863 			port_id, phy_id, 0, 0);
3864 		sas_phy_disconnected(sas_phy);
3865 		phy->phy_attached = 0;
3866 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3867 			GFP_ATOMIC);
3868 		break;
3869 	case HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH:
3870 		pm8001_dbg(pm8001_ha, MSG,
3871 			   "HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH\n");
3872 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3873 			HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH,
3874 			port_id, phy_id, 0, 0);
3875 		sas_phy_disconnected(sas_phy);
3876 		phy->phy_attached = 0;
3877 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3878 			GFP_ATOMIC);
3879 		break;
3880 	case HW_EVENT_MALFUNCTION:
3881 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_MALFUNCTION\n");
3882 		break;
3883 	case HW_EVENT_BROADCAST_SES:
3884 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_SES\n");
3885 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3886 		sas_phy->sas_prim = HW_EVENT_BROADCAST_SES;
3887 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3888 		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
3889 			GFP_ATOMIC);
3890 		break;
3891 	case HW_EVENT_INBOUND_CRC_ERROR:
3892 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_INBOUND_CRC_ERROR\n");
3893 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3894 			HW_EVENT_INBOUND_CRC_ERROR,
3895 			port_id, phy_id, 0, 0);
3896 		break;
3897 	case HW_EVENT_HARD_RESET_RECEIVED:
3898 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_HARD_RESET_RECEIVED\n");
3899 		sas_notify_port_event(sas_phy, PORTE_HARD_RESET, GFP_ATOMIC);
3900 		break;
3901 	case HW_EVENT_ID_FRAME_TIMEOUT:
3902 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_ID_FRAME_TIMEOUT\n");
3903 		sas_phy_disconnected(sas_phy);
3904 		phy->phy_attached = 0;
3905 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3906 			GFP_ATOMIC);
3907 		break;
3908 	case HW_EVENT_LINK_ERR_PHY_RESET_FAILED:
3909 		pm8001_dbg(pm8001_ha, MSG,
3910 			   "HW_EVENT_LINK_ERR_PHY_RESET_FAILED\n");
3911 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3912 			HW_EVENT_LINK_ERR_PHY_RESET_FAILED,
3913 			port_id, phy_id, 0, 0);
3914 		sas_phy_disconnected(sas_phy);
3915 		phy->phy_attached = 0;
3916 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3917 			GFP_ATOMIC);
3918 		break;
3919 	case HW_EVENT_PORT_RESET_TIMER_TMO:
3920 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RESET_TIMER_TMO\n");
3921 		sas_phy_disconnected(sas_phy);
3922 		phy->phy_attached = 0;
3923 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3924 			GFP_ATOMIC);
3925 		break;
3926 	case HW_EVENT_PORT_RECOVERY_TIMER_TMO:
3927 		pm8001_dbg(pm8001_ha, MSG,
3928 			   "HW_EVENT_PORT_RECOVERY_TIMER_TMO\n");
3929 		sas_phy_disconnected(sas_phy);
3930 		phy->phy_attached = 0;
3931 		sas_notify_port_event(sas_phy, PORTE_LINK_RESET_ERR,
3932 			GFP_ATOMIC);
3933 		break;
3934 	case HW_EVENT_PORT_RECOVER:
3935 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RECOVER\n");
3936 		break;
3937 	case HW_EVENT_PORT_RESET_COMPLETE:
3938 		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RESET_COMPLETE\n");
3939 		break;
3940 	case EVENT_BROADCAST_ASYNCH_EVENT:
3941 		pm8001_dbg(pm8001_ha, MSG, "EVENT_BROADCAST_ASYNCH_EVENT\n");
3942 		break;
3943 	default:
3944 		pm8001_dbg(pm8001_ha, DEVIO, "Unknown event type = %x\n",
3945 			   eventType);
3946 		break;
3947 	}
3948 	return 0;
3949 }
3950 
3951 /**
3952  * process_one_iomb - process one outbound Queue memory block
3953  * @pm8001_ha: our hba card information
3954  * @piomb: IO message buffer
3955  */
3956 static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb)
3957 {
3958 	__le32 pHeader = *(__le32 *)piomb;
3959 	u8 opc = (u8)((le32_to_cpu(pHeader)) & 0xFFF);
3960 
3961 	pm8001_dbg(pm8001_ha, MSG, "process_one_iomb:\n");
3962 
3963 	switch (opc) {
3964 	case OPC_OUB_ECHO:
3965 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_ECHO\n");
3966 		break;
3967 	case OPC_OUB_HW_EVENT:
3968 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_HW_EVENT\n");
3969 		mpi_hw_event(pm8001_ha, piomb);
3970 		break;
3971 	case OPC_OUB_SSP_COMP:
3972 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_COMP\n");
3973 		mpi_ssp_completion(pm8001_ha, piomb);
3974 		break;
3975 	case OPC_OUB_SMP_COMP:
3976 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SMP_COMP\n");
3977 		mpi_smp_completion(pm8001_ha, piomb);
3978 		break;
3979 	case OPC_OUB_LOCAL_PHY_CNTRL:
3980 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_LOCAL_PHY_CNTRL\n");
3981 		pm8001_mpi_local_phy_ctl(pm8001_ha, piomb);
3982 		break;
3983 	case OPC_OUB_DEV_REGIST:
3984 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_REGIST\n");
3985 		pm8001_mpi_reg_resp(pm8001_ha, piomb);
3986 		break;
3987 	case OPC_OUB_DEREG_DEV:
3988 		pm8001_dbg(pm8001_ha, MSG, "unregister the device\n");
3989 		pm8001_mpi_dereg_resp(pm8001_ha, piomb);
3990 		break;
3991 	case OPC_OUB_GET_DEV_HANDLE:
3992 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_DEV_HANDLE\n");
3993 		break;
3994 	case OPC_OUB_SATA_COMP:
3995 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_COMP\n");
3996 		mpi_sata_completion(pm8001_ha, piomb);
3997 		break;
3998 	case OPC_OUB_SATA_EVENT:
3999 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_EVENT\n");
4000 		mpi_sata_event(pm8001_ha, piomb);
4001 		break;
4002 	case OPC_OUB_SSP_EVENT:
4003 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_EVENT\n");
4004 		mpi_ssp_event(pm8001_ha, piomb);
4005 		break;
4006 	case OPC_OUB_DEV_HANDLE_ARRIV:
4007 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_HANDLE_ARRIV\n");
4008 		/*This is for target*/
4009 		break;
4010 	case OPC_OUB_SSP_RECV_EVENT:
4011 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_RECV_EVENT\n");
4012 		/*This is for target*/
4013 		break;
4014 	case OPC_OUB_DEV_INFO:
4015 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_INFO\n");
4016 		break;
4017 	case OPC_OUB_FW_FLASH_UPDATE:
4018 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_FW_FLASH_UPDATE\n");
4019 		pm8001_mpi_fw_flash_update_resp(pm8001_ha, piomb);
4020 		break;
4021 	case OPC_OUB_GPIO_RESPONSE:
4022 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GPIO_RESPONSE\n");
4023 		break;
4024 	case OPC_OUB_GPIO_EVENT:
4025 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GPIO_EVENT\n");
4026 		break;
4027 	case OPC_OUB_GENERAL_EVENT:
4028 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GENERAL_EVENT\n");
4029 		pm8001_mpi_general_event(pm8001_ha, piomb);
4030 		break;
4031 	case OPC_OUB_SSP_ABORT_RSP:
4032 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_ABORT_RSP\n");
4033 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4034 		break;
4035 	case OPC_OUB_SATA_ABORT_RSP:
4036 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_ABORT_RSP\n");
4037 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4038 		break;
4039 	case OPC_OUB_SAS_DIAG_MODE_START_END:
4040 		pm8001_dbg(pm8001_ha, MSG,
4041 			   "OPC_OUB_SAS_DIAG_MODE_START_END\n");
4042 		break;
4043 	case OPC_OUB_SAS_DIAG_EXECUTE:
4044 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_DIAG_EXECUTE\n");
4045 		break;
4046 	case OPC_OUB_GET_TIME_STAMP:
4047 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_TIME_STAMP\n");
4048 		break;
4049 	case OPC_OUB_SAS_HW_EVENT_ACK:
4050 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_HW_EVENT_ACK\n");
4051 		break;
4052 	case OPC_OUB_PORT_CONTROL:
4053 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_PORT_CONTROL\n");
4054 		break;
4055 	case OPC_OUB_SMP_ABORT_RSP:
4056 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SMP_ABORT_RSP\n");
4057 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4058 		break;
4059 	case OPC_OUB_GET_NVMD_DATA:
4060 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_NVMD_DATA\n");
4061 		pm8001_mpi_get_nvmd_resp(pm8001_ha, piomb);
4062 		break;
4063 	case OPC_OUB_SET_NVMD_DATA:
4064 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_NVMD_DATA\n");
4065 		pm8001_mpi_set_nvmd_resp(pm8001_ha, piomb);
4066 		break;
4067 	case OPC_OUB_DEVICE_HANDLE_REMOVAL:
4068 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEVICE_HANDLE_REMOVAL\n");
4069 		break;
4070 	case OPC_OUB_SET_DEVICE_STATE:
4071 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_DEVICE_STATE\n");
4072 		pm8001_mpi_set_dev_state_resp(pm8001_ha, piomb);
4073 		break;
4074 	case OPC_OUB_GET_DEVICE_STATE:
4075 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_DEVICE_STATE\n");
4076 		break;
4077 	case OPC_OUB_SET_DEV_INFO:
4078 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_DEV_INFO\n");
4079 		break;
4080 	case OPC_OUB_SAS_RE_INITIALIZE:
4081 		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_RE_INITIALIZE\n");
4082 		break;
4083 	default:
4084 		pm8001_dbg(pm8001_ha, DEVIO,
4085 			   "Unknown outbound Queue IOMB OPC = %x\n",
4086 			   opc);
4087 		break;
4088 	}
4089 }
4090 
4091 static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec)
4092 {
4093 	struct outbound_queue_table *circularQ;
4094 	void *pMsg1 = NULL;
4095 	u8 bc;
4096 	u32 ret = MPI_IO_STATUS_FAIL;
4097 	unsigned long flags;
4098 
4099 	spin_lock_irqsave(&pm8001_ha->lock, flags);
4100 	circularQ = &pm8001_ha->outbnd_q_tbl[vec];
4101 	do {
4102 		ret = pm8001_mpi_msg_consume(pm8001_ha, circularQ, &pMsg1, &bc);
4103 		if (MPI_IO_STATUS_SUCCESS == ret) {
4104 			/* process the outbound message */
4105 			process_one_iomb(pm8001_ha, (void *)(pMsg1 - 4));
4106 			/* free the message from the outbound circular buffer */
4107 			pm8001_mpi_msg_free_set(pm8001_ha, pMsg1,
4108 							circularQ, bc);
4109 		}
4110 		if (MPI_IO_STATUS_BUSY == ret) {
4111 			/* Update the producer index from SPC */
4112 			circularQ->producer_index =
4113 				cpu_to_le32(pm8001_read_32(circularQ->pi_virt));
4114 			if (le32_to_cpu(circularQ->producer_index) ==
4115 				circularQ->consumer_idx)
4116 				/* OQ is empty */
4117 				break;
4118 		}
4119 	} while (1);
4120 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
4121 	return ret;
4122 }
4123 
4124 /* DMA_... to our direction translation. */
4125 static const u8 data_dir_flags[] = {
4126 	[DMA_BIDIRECTIONAL]	= DATA_DIR_BYRECIPIENT,	/* UNSPECIFIED */
4127 	[DMA_TO_DEVICE]		= DATA_DIR_OUT,		/* OUTBOUND */
4128 	[DMA_FROM_DEVICE]	= DATA_DIR_IN,		/* INBOUND */
4129 	[DMA_NONE]		= DATA_DIR_NONE,	/* NO TRANSFER */
4130 };
4131 void
4132 pm8001_chip_make_sg(struct scatterlist *scatter, int nr, void *prd)
4133 {
4134 	int i;
4135 	struct scatterlist *sg;
4136 	struct pm8001_prd *buf_prd = prd;
4137 
4138 	for_each_sg(scatter, sg, nr, i) {
4139 		buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
4140 		buf_prd->im_len.len = cpu_to_le32(sg_dma_len(sg));
4141 		buf_prd->im_len.e = 0;
4142 		buf_prd++;
4143 	}
4144 }
4145 
4146 static void build_smp_cmd(u32 deviceID, __le32 hTag, struct smp_req *psmp_cmd)
4147 {
4148 	psmp_cmd->tag = hTag;
4149 	psmp_cmd->device_id = cpu_to_le32(deviceID);
4150 	psmp_cmd->len_ip_ir = cpu_to_le32(1|(1 << 1));
4151 }
4152 
4153 /**
4154  * pm8001_chip_smp_req - send a SMP task to FW
4155  * @pm8001_ha: our hba card information.
4156  * @ccb: the ccb information this request used.
4157  */
4158 static int pm8001_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
4159 	struct pm8001_ccb_info *ccb)
4160 {
4161 	int elem, rc;
4162 	struct sas_task *task = ccb->task;
4163 	struct domain_device *dev = task->dev;
4164 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4165 	struct scatterlist *sg_req, *sg_resp;
4166 	u32 req_len, resp_len;
4167 	struct smp_req smp_cmd;
4168 	u32 opc;
4169 	struct inbound_queue_table *circularQ;
4170 
4171 	memset(&smp_cmd, 0, sizeof(smp_cmd));
4172 	/*
4173 	 * DMA-map SMP request, response buffers
4174 	 */
4175 	sg_req = &task->smp_task.smp_req;
4176 	elem = dma_map_sg(pm8001_ha->dev, sg_req, 1, DMA_TO_DEVICE);
4177 	if (!elem)
4178 		return -ENOMEM;
4179 	req_len = sg_dma_len(sg_req);
4180 
4181 	sg_resp = &task->smp_task.smp_resp;
4182 	elem = dma_map_sg(pm8001_ha->dev, sg_resp, 1, DMA_FROM_DEVICE);
4183 	if (!elem) {
4184 		rc = -ENOMEM;
4185 		goto err_out;
4186 	}
4187 	resp_len = sg_dma_len(sg_resp);
4188 	/* must be in dwords */
4189 	if ((req_len & 0x3) || (resp_len & 0x3)) {
4190 		rc = -EINVAL;
4191 		goto err_out_2;
4192 	}
4193 
4194 	opc = OPC_INB_SMP_REQUEST;
4195 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4196 	smp_cmd.tag = cpu_to_le32(ccb->ccb_tag);
4197 	smp_cmd.long_smp_req.long_req_addr =
4198 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req));
4199 	smp_cmd.long_smp_req.long_req_size =
4200 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-4);
4201 	smp_cmd.long_smp_req.long_resp_addr =
4202 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_resp));
4203 	smp_cmd.long_smp_req.long_resp_size =
4204 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4);
4205 	build_smp_cmd(pm8001_dev->device_id, smp_cmd.tag, &smp_cmd);
4206 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc,
4207 			&smp_cmd, sizeof(smp_cmd), 0);
4208 	if (rc)
4209 		goto err_out_2;
4210 
4211 	return 0;
4212 
4213 err_out_2:
4214 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_resp, 1,
4215 			DMA_FROM_DEVICE);
4216 err_out:
4217 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_req, 1,
4218 			DMA_TO_DEVICE);
4219 	return rc;
4220 }
4221 
4222 /**
4223  * pm8001_chip_ssp_io_req - send a SSP task to FW
4224  * @pm8001_ha: our hba card information.
4225  * @ccb: the ccb information this request used.
4226  */
4227 static int pm8001_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
4228 	struct pm8001_ccb_info *ccb)
4229 {
4230 	struct sas_task *task = ccb->task;
4231 	struct domain_device *dev = task->dev;
4232 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4233 	struct ssp_ini_io_start_req ssp_cmd;
4234 	u32 tag = ccb->ccb_tag;
4235 	int ret;
4236 	u64 phys_addr;
4237 	struct inbound_queue_table *circularQ;
4238 	u32 opc = OPC_INB_SSPINIIOSTART;
4239 	memset(&ssp_cmd, 0, sizeof(ssp_cmd));
4240 	memcpy(ssp_cmd.ssp_iu.lun, task->ssp_task.LUN, 8);
4241 	ssp_cmd.dir_m_tlr =
4242 		cpu_to_le32(data_dir_flags[task->data_dir] << 8 | 0x0);/*0 for
4243 	SAS 1.1 compatible TLR*/
4244 	ssp_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4245 	ssp_cmd.device_id = cpu_to_le32(pm8001_dev->device_id);
4246 	ssp_cmd.tag = cpu_to_le32(tag);
4247 	if (task->ssp_task.enable_first_burst)
4248 		ssp_cmd.ssp_iu.efb_prio_attr |= 0x80;
4249 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_prio << 3);
4250 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_attr & 7);
4251 	memcpy(ssp_cmd.ssp_iu.cdb, task->ssp_task.cmd->cmnd,
4252 	       task->ssp_task.cmd->cmd_len);
4253 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4254 
4255 	/* fill in PRD (scatter/gather) table, if any */
4256 	if (task->num_scatter > 1) {
4257 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4258 		phys_addr = ccb->ccb_dma_handle;
4259 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(phys_addr));
4260 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(phys_addr));
4261 		ssp_cmd.esgl = cpu_to_le32(1<<31);
4262 	} else if (task->num_scatter == 1) {
4263 		u64 dma_addr = sg_dma_address(task->scatter);
4264 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(dma_addr));
4265 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(dma_addr));
4266 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4267 		ssp_cmd.esgl = 0;
4268 	} else if (task->num_scatter == 0) {
4269 		ssp_cmd.addr_low = 0;
4270 		ssp_cmd.addr_high = 0;
4271 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4272 		ssp_cmd.esgl = 0;
4273 	}
4274 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &ssp_cmd,
4275 			sizeof(ssp_cmd), 0);
4276 	return ret;
4277 }
4278 
4279 static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
4280 	struct pm8001_ccb_info *ccb)
4281 {
4282 	struct sas_task *task = ccb->task;
4283 	struct domain_device *dev = task->dev;
4284 	struct pm8001_device *pm8001_ha_dev = dev->lldd_dev;
4285 	u32 tag = ccb->ccb_tag;
4286 	int ret;
4287 	struct sata_start_req sata_cmd;
4288 	u32 hdr_tag, ncg_tag = 0;
4289 	u64 phys_addr;
4290 	u32 ATAP = 0x0;
4291 	u32 dir;
4292 	struct inbound_queue_table *circularQ;
4293 	unsigned long flags;
4294 	u32  opc = OPC_INB_SATA_HOST_OPSTART;
4295 	memset(&sata_cmd, 0, sizeof(sata_cmd));
4296 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4297 	if (task->data_dir == DMA_NONE) {
4298 		ATAP = 0x04;  /* no data*/
4299 		pm8001_dbg(pm8001_ha, IO, "no data\n");
4300 	} else if (likely(!task->ata_task.device_control_reg_update)) {
4301 		if (task->ata_task.dma_xfer) {
4302 			ATAP = 0x06; /* DMA */
4303 			pm8001_dbg(pm8001_ha, IO, "DMA\n");
4304 		} else {
4305 			ATAP = 0x05; /* PIO*/
4306 			pm8001_dbg(pm8001_ha, IO, "PIO\n");
4307 		}
4308 		if (task->ata_task.use_ncq &&
4309 			dev->sata_dev.class != ATA_DEV_ATAPI) {
4310 			ATAP = 0x07; /* FPDMA */
4311 			pm8001_dbg(pm8001_ha, IO, "FPDMA\n");
4312 		}
4313 	}
4314 	if (task->ata_task.use_ncq && pm8001_get_ncq_tag(task, &hdr_tag)) {
4315 		task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
4316 		ncg_tag = hdr_tag;
4317 	}
4318 	dir = data_dir_flags[task->data_dir] << 8;
4319 	sata_cmd.tag = cpu_to_le32(tag);
4320 	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
4321 	sata_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4322 	sata_cmd.ncqtag_atap_dir_m =
4323 		cpu_to_le32(((ncg_tag & 0xff)<<16)|((ATAP & 0x3f) << 10) | dir);
4324 	sata_cmd.sata_fis = task->ata_task.fis;
4325 	if (likely(!task->ata_task.device_control_reg_update))
4326 		sata_cmd.sata_fis.flags |= 0x80;/* C=1: update ATA cmd reg */
4327 	sata_cmd.sata_fis.flags &= 0xF0;/* PM_PORT field shall be 0 */
4328 	/* fill in PRD (scatter/gather) table, if any */
4329 	if (task->num_scatter > 1) {
4330 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4331 		phys_addr = ccb->ccb_dma_handle;
4332 		sata_cmd.addr_low = lower_32_bits(phys_addr);
4333 		sata_cmd.addr_high = upper_32_bits(phys_addr);
4334 		sata_cmd.esgl = cpu_to_le32(1 << 31);
4335 	} else if (task->num_scatter == 1) {
4336 		u64 dma_addr = sg_dma_address(task->scatter);
4337 		sata_cmd.addr_low = lower_32_bits(dma_addr);
4338 		sata_cmd.addr_high = upper_32_bits(dma_addr);
4339 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4340 		sata_cmd.esgl = 0;
4341 	} else if (task->num_scatter == 0) {
4342 		sata_cmd.addr_low = 0;
4343 		sata_cmd.addr_high = 0;
4344 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4345 		sata_cmd.esgl = 0;
4346 	}
4347 
4348 	/* Check for read log for failed drive and return */
4349 	if (sata_cmd.sata_fis.command == 0x2f) {
4350 		if (((pm8001_ha_dev->id & NCQ_READ_LOG_FLAG) ||
4351 			(pm8001_ha_dev->id & NCQ_ABORT_ALL_FLAG) ||
4352 			(pm8001_ha_dev->id & NCQ_2ND_RLE_FLAG))) {
4353 			struct task_status_struct *ts;
4354 
4355 			pm8001_ha_dev->id &= 0xDFFFFFFF;
4356 			ts = &task->task_status;
4357 
4358 			spin_lock_irqsave(&task->task_state_lock, flags);
4359 			ts->resp = SAS_TASK_COMPLETE;
4360 			ts->stat = SAM_STAT_GOOD;
4361 			task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
4362 			task->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
4363 			task->task_state_flags |= SAS_TASK_STATE_DONE;
4364 			if (unlikely((task->task_state_flags &
4365 					SAS_TASK_STATE_ABORTED))) {
4366 				spin_unlock_irqrestore(&task->task_state_lock,
4367 							flags);
4368 				pm8001_dbg(pm8001_ha, FAIL,
4369 					   "task 0x%p resp 0x%x  stat 0x%x but aborted by upper layer\n",
4370 					   task, ts->resp,
4371 					   ts->stat);
4372 				pm8001_ccb_task_free(pm8001_ha, task, ccb, tag);
4373 			} else {
4374 				spin_unlock_irqrestore(&task->task_state_lock,
4375 							flags);
4376 				pm8001_ccb_task_free_done(pm8001_ha, task,
4377 								ccb, tag);
4378 				return 0;
4379 			}
4380 		}
4381 	}
4382 
4383 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
4384 			sizeof(sata_cmd), 0);
4385 	return ret;
4386 }
4387 
4388 /**
4389  * pm8001_chip_phy_start_req - start phy via PHY_START COMMAND
4390  * @pm8001_ha: our hba card information.
4391  * @phy_id: the phy id which we wanted to start up.
4392  */
4393 static int
4394 pm8001_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id)
4395 {
4396 	struct phy_start_req payload;
4397 	struct inbound_queue_table *circularQ;
4398 	int ret;
4399 	u32 tag = 0x01;
4400 	u32 opcode = OPC_INB_PHYSTART;
4401 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4402 	memset(&payload, 0, sizeof(payload));
4403 	payload.tag = cpu_to_le32(tag);
4404 	/*
4405 	 ** [0:7]   PHY Identifier
4406 	 ** [8:11]  link rate 1.5G, 3G, 6G
4407 	 ** [12:13] link mode 01b SAS mode; 10b SATA mode; 11b both
4408 	 ** [14]    0b disable spin up hold; 1b enable spin up hold
4409 	 */
4410 	payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE |
4411 		LINKMODE_AUTO |	LINKRATE_15 |
4412 		LINKRATE_30 | LINKRATE_60 | phy_id);
4413 	payload.sas_identify.dev_type = SAS_END_DEVICE;
4414 	payload.sas_identify.initiator_bits = SAS_PROTOCOL_ALL;
4415 	memcpy(payload.sas_identify.sas_addr,
4416 		pm8001_ha->sas_addr, SAS_ADDR_SIZE);
4417 	payload.sas_identify.phy_id = phy_id;
4418 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
4419 			sizeof(payload), 0);
4420 	return ret;
4421 }
4422 
4423 /**
4424  * pm8001_chip_phy_stop_req - start phy via PHY_STOP COMMAND
4425  * @pm8001_ha: our hba card information.
4426  * @phy_id: the phy id which we wanted to start up.
4427  */
4428 static int pm8001_chip_phy_stop_req(struct pm8001_hba_info *pm8001_ha,
4429 				    u8 phy_id)
4430 {
4431 	struct phy_stop_req payload;
4432 	struct inbound_queue_table *circularQ;
4433 	int ret;
4434 	u32 tag = 0x01;
4435 	u32 opcode = OPC_INB_PHYSTOP;
4436 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4437 	memset(&payload, 0, sizeof(payload));
4438 	payload.tag = cpu_to_le32(tag);
4439 	payload.phy_id = cpu_to_le32(phy_id);
4440 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
4441 			sizeof(payload), 0);
4442 	return ret;
4443 }
4444 
4445 /*
4446  * see comments on pm8001_mpi_reg_resp.
4447  */
4448 static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
4449 	struct pm8001_device *pm8001_dev, u32 flag)
4450 {
4451 	struct reg_dev_req payload;
4452 	u32	opc;
4453 	u32 stp_sspsmp_sata = 0x4;
4454 	struct inbound_queue_table *circularQ;
4455 	u32 linkrate, phy_id;
4456 	int rc, tag = 0xdeadbeef;
4457 	struct pm8001_ccb_info *ccb;
4458 	u8 retryFlag = 0x1;
4459 	u16 firstBurstSize = 0;
4460 	u16 ITNT = 2000;
4461 	struct domain_device *dev = pm8001_dev->sas_device;
4462 	struct domain_device *parent_dev = dev->parent;
4463 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4464 
4465 	memset(&payload, 0, sizeof(payload));
4466 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
4467 	if (rc)
4468 		return rc;
4469 	ccb = &pm8001_ha->ccb_info[tag];
4470 	ccb->device = pm8001_dev;
4471 	ccb->ccb_tag = tag;
4472 	payload.tag = cpu_to_le32(tag);
4473 	if (flag == 1)
4474 		stp_sspsmp_sata = 0x02; /*direct attached sata */
4475 	else {
4476 		if (pm8001_dev->dev_type == SAS_SATA_DEV)
4477 			stp_sspsmp_sata = 0x00; /* stp*/
4478 		else if (pm8001_dev->dev_type == SAS_END_DEVICE ||
4479 			pm8001_dev->dev_type == SAS_EDGE_EXPANDER_DEVICE ||
4480 			pm8001_dev->dev_type == SAS_FANOUT_EXPANDER_DEVICE)
4481 			stp_sspsmp_sata = 0x01; /*ssp or smp*/
4482 	}
4483 	if (parent_dev && dev_is_expander(parent_dev->dev_type))
4484 		phy_id = parent_dev->ex_dev.ex_phy->phy_id;
4485 	else
4486 		phy_id = pm8001_dev->attached_phy;
4487 	opc = OPC_INB_REG_DEV;
4488 	linkrate = (pm8001_dev->sas_device->linkrate < dev->port->linkrate) ?
4489 			pm8001_dev->sas_device->linkrate : dev->port->linkrate;
4490 	payload.phyid_portid =
4491 		cpu_to_le32(((pm8001_dev->sas_device->port->id) & 0x0F) |
4492 		((phy_id & 0x0F) << 4));
4493 	payload.dtype_dlr_retry = cpu_to_le32((retryFlag & 0x01) |
4494 		((linkrate & 0x0F) * 0x1000000) |
4495 		((stp_sspsmp_sata & 0x03) * 0x10000000));
4496 	payload.firstburstsize_ITNexustimeout =
4497 		cpu_to_le32(ITNT | (firstBurstSize * 0x10000));
4498 	memcpy(payload.sas_addr, pm8001_dev->sas_device->sas_addr,
4499 		SAS_ADDR_SIZE);
4500 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4501 			sizeof(payload), 0);
4502 	return rc;
4503 }
4504 
4505 /*
4506  * see comments on pm8001_mpi_reg_resp.
4507  */
4508 int pm8001_chip_dereg_dev_req(struct pm8001_hba_info *pm8001_ha,
4509 	u32 device_id)
4510 {
4511 	struct dereg_dev_req payload;
4512 	u32 opc = OPC_INB_DEREG_DEV_HANDLE;
4513 	int ret;
4514 	struct inbound_queue_table *circularQ;
4515 
4516 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4517 	memset(&payload, 0, sizeof(payload));
4518 	payload.tag = cpu_to_le32(1);
4519 	payload.device_id = cpu_to_le32(device_id);
4520 	pm8001_dbg(pm8001_ha, MSG, "unregister device device_id = %d\n",
4521 		   device_id);
4522 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4523 			sizeof(payload), 0);
4524 	return ret;
4525 }
4526 
4527 /**
4528  * pm8001_chip_phy_ctl_req - support the local phy operation
4529  * @pm8001_ha: our hba card information.
4530  * @phyId: the phy id which we wanted to operate
4531  * @phy_op: the phy operation to request
4532  */
4533 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
4534 	u32 phyId, u32 phy_op)
4535 {
4536 	struct local_phy_ctl_req payload;
4537 	struct inbound_queue_table *circularQ;
4538 	int ret;
4539 	u32 opc = OPC_INB_LOCAL_PHY_CONTROL;
4540 	memset(&payload, 0, sizeof(payload));
4541 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4542 	payload.tag = cpu_to_le32(1);
4543 	payload.phyop_phyid =
4544 		cpu_to_le32(((phy_op & 0xff) << 8) | (phyId & 0x0F));
4545 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4546 			sizeof(payload), 0);
4547 	return ret;
4548 }
4549 
4550 static u32 pm8001_chip_is_our_interrupt(struct pm8001_hba_info *pm8001_ha)
4551 {
4552 #ifdef PM8001_USE_MSIX
4553 	return 1;
4554 #else
4555 	u32 value;
4556 
4557 	value = pm8001_cr32(pm8001_ha, 0, MSGU_ODR);
4558 	if (value)
4559 		return 1;
4560 	return 0;
4561 #endif
4562 }
4563 
4564 /**
4565  * pm8001_chip_isr - PM8001 isr handler.
4566  * @pm8001_ha: our hba card information.
4567  * @vec: IRQ number
4568  */
4569 static irqreturn_t
4570 pm8001_chip_isr(struct pm8001_hba_info *pm8001_ha, u8 vec)
4571 {
4572 	pm8001_chip_interrupt_disable(pm8001_ha, vec);
4573 	pm8001_dbg(pm8001_ha, DEVIO,
4574 		   "irq vec %d, ODMR:0x%x\n",
4575 		   vec, pm8001_cr32(pm8001_ha, 0, 0x30));
4576 	process_oq(pm8001_ha, vec);
4577 	pm8001_chip_interrupt_enable(pm8001_ha, vec);
4578 	return IRQ_HANDLED;
4579 }
4580 
4581 static int send_task_abort(struct pm8001_hba_info *pm8001_ha, u32 opc,
4582 	u32 dev_id, u8 flag, u32 task_tag, u32 cmd_tag)
4583 {
4584 	struct task_abort_req task_abort;
4585 	struct inbound_queue_table *circularQ;
4586 	int ret;
4587 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4588 	memset(&task_abort, 0, sizeof(task_abort));
4589 	if (ABORT_SINGLE == (flag & ABORT_MASK)) {
4590 		task_abort.abort_all = 0;
4591 		task_abort.device_id = cpu_to_le32(dev_id);
4592 		task_abort.tag_to_abort = cpu_to_le32(task_tag);
4593 		task_abort.tag = cpu_to_le32(cmd_tag);
4594 	} else if (ABORT_ALL == (flag & ABORT_MASK)) {
4595 		task_abort.abort_all = cpu_to_le32(1);
4596 		task_abort.device_id = cpu_to_le32(dev_id);
4597 		task_abort.tag = cpu_to_le32(cmd_tag);
4598 	}
4599 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
4600 			sizeof(task_abort), 0);
4601 	return ret;
4602 }
4603 
4604 /*
4605  * pm8001_chip_abort_task - SAS abort task when error or exception happened.
4606  */
4607 int pm8001_chip_abort_task(struct pm8001_hba_info *pm8001_ha,
4608 	struct pm8001_device *pm8001_dev, u8 flag, u32 task_tag, u32 cmd_tag)
4609 {
4610 	u32 opc, device_id;
4611 	int rc = TMF_RESP_FUNC_FAILED;
4612 	pm8001_dbg(pm8001_ha, EH, "cmd_tag = %x, abort task tag = 0x%x\n",
4613 		   cmd_tag, task_tag);
4614 	if (pm8001_dev->dev_type == SAS_END_DEVICE)
4615 		opc = OPC_INB_SSP_ABORT;
4616 	else if (pm8001_dev->dev_type == SAS_SATA_DEV)
4617 		opc = OPC_INB_SATA_ABORT;
4618 	else
4619 		opc = OPC_INB_SMP_ABORT;/* SMP */
4620 	device_id = pm8001_dev->device_id;
4621 	rc = send_task_abort(pm8001_ha, opc, device_id, flag,
4622 		task_tag, cmd_tag);
4623 	if (rc != TMF_RESP_FUNC_COMPLETE)
4624 		pm8001_dbg(pm8001_ha, EH, "rc= %d\n", rc);
4625 	return rc;
4626 }
4627 
4628 /**
4629  * pm8001_chip_ssp_tm_req - built the task management command.
4630  * @pm8001_ha: our hba card information.
4631  * @ccb: the ccb information.
4632  * @tmf: task management function.
4633  */
4634 int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
4635 	struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf)
4636 {
4637 	struct sas_task *task = ccb->task;
4638 	struct domain_device *dev = task->dev;
4639 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4640 	u32 opc = OPC_INB_SSPINITMSTART;
4641 	struct inbound_queue_table *circularQ;
4642 	struct ssp_ini_tm_start_req sspTMCmd;
4643 	int ret;
4644 
4645 	memset(&sspTMCmd, 0, sizeof(sspTMCmd));
4646 	sspTMCmd.device_id = cpu_to_le32(pm8001_dev->device_id);
4647 	sspTMCmd.relate_tag = cpu_to_le32(tmf->tag_of_task_to_be_managed);
4648 	sspTMCmd.tmf = cpu_to_le32(tmf->tmf);
4649 	memcpy(sspTMCmd.lun, task->ssp_task.LUN, 8);
4650 	sspTMCmd.tag = cpu_to_le32(ccb->ccb_tag);
4651 	if (pm8001_ha->chip_id != chip_8001)
4652 		sspTMCmd.ds_ads_m = 0x08;
4653 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4654 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sspTMCmd,
4655 			sizeof(sspTMCmd), 0);
4656 	return ret;
4657 }
4658 
4659 int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
4660 	void *payload)
4661 {
4662 	u32 opc = OPC_INB_GET_NVMD_DATA;
4663 	u32 nvmd_type;
4664 	int rc;
4665 	u32 tag;
4666 	struct pm8001_ccb_info *ccb;
4667 	struct inbound_queue_table *circularQ;
4668 	struct get_nvm_data_req nvmd_req;
4669 	struct fw_control_ex *fw_control_context;
4670 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4671 
4672 	nvmd_type = ioctl_payload->minor_function;
4673 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4674 	if (!fw_control_context)
4675 		return -ENOMEM;
4676 	fw_control_context->usrAddr = (u8 *)ioctl_payload->func_specific;
4677 	fw_control_context->len = ioctl_payload->rd_length;
4678 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4679 	memset(&nvmd_req, 0, sizeof(nvmd_req));
4680 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
4681 	if (rc) {
4682 		kfree(fw_control_context);
4683 		return rc;
4684 	}
4685 	ccb = &pm8001_ha->ccb_info[tag];
4686 	ccb->ccb_tag = tag;
4687 	ccb->fw_control_context = fw_control_context;
4688 	nvmd_req.tag = cpu_to_le32(tag);
4689 
4690 	switch (nvmd_type) {
4691 	case TWI_DEVICE: {
4692 		u32 twi_addr, twi_page_size;
4693 		twi_addr = 0xa8;
4694 		twi_page_size = 2;
4695 
4696 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
4697 			twi_page_size << 8 | TWI_DEVICE);
4698 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4699 		nvmd_req.resp_addr_hi =
4700 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4701 		nvmd_req.resp_addr_lo =
4702 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4703 		break;
4704 	}
4705 	case C_SEEPROM: {
4706 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
4707 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4708 		nvmd_req.resp_addr_hi =
4709 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4710 		nvmd_req.resp_addr_lo =
4711 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4712 		break;
4713 	}
4714 	case VPD_FLASH: {
4715 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
4716 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4717 		nvmd_req.resp_addr_hi =
4718 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4719 		nvmd_req.resp_addr_lo =
4720 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4721 		break;
4722 	}
4723 	case EXPAN_ROM: {
4724 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
4725 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4726 		nvmd_req.resp_addr_hi =
4727 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4728 		nvmd_req.resp_addr_lo =
4729 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4730 		break;
4731 	}
4732 	case IOP_RDUMP: {
4733 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | IOP_RDUMP);
4734 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4735 		nvmd_req.vpd_offset = cpu_to_le32(ioctl_payload->offset);
4736 		nvmd_req.resp_addr_hi =
4737 		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4738 		nvmd_req.resp_addr_lo =
4739 		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4740 		break;
4741 	}
4742 	default:
4743 		break;
4744 	}
4745 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req,
4746 			sizeof(nvmd_req), 0);
4747 	if (rc) {
4748 		kfree(fw_control_context);
4749 		pm8001_tag_free(pm8001_ha, tag);
4750 	}
4751 	return rc;
4752 }
4753 
4754 int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha,
4755 	void *payload)
4756 {
4757 	u32 opc = OPC_INB_SET_NVMD_DATA;
4758 	u32 nvmd_type;
4759 	int rc;
4760 	u32 tag;
4761 	struct pm8001_ccb_info *ccb;
4762 	struct inbound_queue_table *circularQ;
4763 	struct set_nvm_data_req nvmd_req;
4764 	struct fw_control_ex *fw_control_context;
4765 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4766 
4767 	nvmd_type = ioctl_payload->minor_function;
4768 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4769 	if (!fw_control_context)
4770 		return -ENOMEM;
4771 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4772 	memcpy(pm8001_ha->memoryMap.region[NVMD].virt_ptr,
4773 		&ioctl_payload->func_specific,
4774 		ioctl_payload->wr_length);
4775 	memset(&nvmd_req, 0, sizeof(nvmd_req));
4776 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
4777 	if (rc) {
4778 		kfree(fw_control_context);
4779 		return -EBUSY;
4780 	}
4781 	ccb = &pm8001_ha->ccb_info[tag];
4782 	ccb->fw_control_context = fw_control_context;
4783 	ccb->ccb_tag = tag;
4784 	nvmd_req.tag = cpu_to_le32(tag);
4785 	switch (nvmd_type) {
4786 	case TWI_DEVICE: {
4787 		u32 twi_addr, twi_page_size;
4788 		twi_addr = 0xa8;
4789 		twi_page_size = 2;
4790 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4791 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
4792 			twi_page_size << 8 | TWI_DEVICE);
4793 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4794 		nvmd_req.resp_addr_hi =
4795 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4796 		nvmd_req.resp_addr_lo =
4797 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4798 		break;
4799 	}
4800 	case C_SEEPROM:
4801 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
4802 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4803 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4804 		nvmd_req.resp_addr_hi =
4805 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4806 		nvmd_req.resp_addr_lo =
4807 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4808 		break;
4809 	case VPD_FLASH:
4810 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
4811 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4812 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4813 		nvmd_req.resp_addr_hi =
4814 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4815 		nvmd_req.resp_addr_lo =
4816 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4817 		break;
4818 	case EXPAN_ROM:
4819 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
4820 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4821 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4822 		nvmd_req.resp_addr_hi =
4823 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4824 		nvmd_req.resp_addr_lo =
4825 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4826 		break;
4827 	default:
4828 		break;
4829 	}
4830 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req,
4831 			sizeof(nvmd_req), 0);
4832 	if (rc) {
4833 		kfree(fw_control_context);
4834 		pm8001_tag_free(pm8001_ha, tag);
4835 	}
4836 	return rc;
4837 }
4838 
4839 /**
4840  * pm8001_chip_fw_flash_update_build - support the firmware update operation
4841  * @pm8001_ha: our hba card information.
4842  * @fw_flash_updata_info: firmware flash update param
4843  * @tag: Tag to apply to the payload
4844  */
4845 int
4846 pm8001_chip_fw_flash_update_build(struct pm8001_hba_info *pm8001_ha,
4847 	void *fw_flash_updata_info, u32 tag)
4848 {
4849 	struct fw_flash_Update_req payload;
4850 	struct fw_flash_updata_info *info;
4851 	struct inbound_queue_table *circularQ;
4852 	int ret;
4853 	u32 opc = OPC_INB_FW_FLASH_UPDATE;
4854 
4855 	memset(&payload, 0, sizeof(struct fw_flash_Update_req));
4856 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4857 	info = fw_flash_updata_info;
4858 	payload.tag = cpu_to_le32(tag);
4859 	payload.cur_image_len = cpu_to_le32(info->cur_image_len);
4860 	payload.cur_image_offset = cpu_to_le32(info->cur_image_offset);
4861 	payload.total_image_len = cpu_to_le32(info->total_image_len);
4862 	payload.len = info->sgl.im_len.len ;
4863 	payload.sgl_addr_lo =
4864 		cpu_to_le32(lower_32_bits(le64_to_cpu(info->sgl.addr)));
4865 	payload.sgl_addr_hi =
4866 		cpu_to_le32(upper_32_bits(le64_to_cpu(info->sgl.addr)));
4867 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4868 			sizeof(payload), 0);
4869 	return ret;
4870 }
4871 
4872 int
4873 pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
4874 	void *payload)
4875 {
4876 	struct fw_flash_updata_info flash_update_info;
4877 	struct fw_control_info *fw_control;
4878 	struct fw_control_ex *fw_control_context;
4879 	int rc;
4880 	u32 tag;
4881 	struct pm8001_ccb_info *ccb;
4882 	void *buffer = pm8001_ha->memoryMap.region[FW_FLASH].virt_ptr;
4883 	dma_addr_t phys_addr = pm8001_ha->memoryMap.region[FW_FLASH].phys_addr;
4884 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4885 
4886 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4887 	if (!fw_control_context)
4888 		return -ENOMEM;
4889 	fw_control = (struct fw_control_info *)&ioctl_payload->func_specific;
4890 	pm8001_dbg(pm8001_ha, DEVIO,
4891 		   "dma fw_control context input length :%x\n",
4892 		   fw_control->len);
4893 	memcpy(buffer, fw_control->buffer, fw_control->len);
4894 	flash_update_info.sgl.addr = cpu_to_le64(phys_addr);
4895 	flash_update_info.sgl.im_len.len = cpu_to_le32(fw_control->len);
4896 	flash_update_info.sgl.im_len.e = 0;
4897 	flash_update_info.cur_image_offset = fw_control->offset;
4898 	flash_update_info.cur_image_len = fw_control->len;
4899 	flash_update_info.total_image_len = fw_control->size;
4900 	fw_control_context->fw_control = fw_control;
4901 	fw_control_context->virtAddr = buffer;
4902 	fw_control_context->phys_addr = phys_addr;
4903 	fw_control_context->len = fw_control->len;
4904 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
4905 	if (rc) {
4906 		kfree(fw_control_context);
4907 		return -EBUSY;
4908 	}
4909 	ccb = &pm8001_ha->ccb_info[tag];
4910 	ccb->fw_control_context = fw_control_context;
4911 	ccb->ccb_tag = tag;
4912 	rc = pm8001_chip_fw_flash_update_build(pm8001_ha, &flash_update_info,
4913 		tag);
4914 	return rc;
4915 }
4916 
4917 ssize_t
4918 pm8001_get_gsm_dump(struct device *cdev, u32 length, char *buf)
4919 {
4920 	u32 value, rem, offset = 0, bar = 0;
4921 	u32 index, work_offset, dw_length;
4922 	u32 shift_value, gsm_base, gsm_dump_offset;
4923 	char *direct_data;
4924 	struct Scsi_Host *shost = class_to_shost(cdev);
4925 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
4926 	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
4927 
4928 	direct_data = buf;
4929 	gsm_dump_offset = pm8001_ha->fatal_forensic_shift_offset;
4930 
4931 	/* check max is 1 Mbytes */
4932 	if ((length > 0x100000) || (gsm_dump_offset & 3) ||
4933 		((gsm_dump_offset + length) > 0x1000000))
4934 			return -EINVAL;
4935 
4936 	if (pm8001_ha->chip_id == chip_8001)
4937 		bar = 2;
4938 	else
4939 		bar = 1;
4940 
4941 	work_offset = gsm_dump_offset & 0xFFFF0000;
4942 	offset = gsm_dump_offset & 0x0000FFFF;
4943 	gsm_dump_offset = work_offset;
4944 	/* adjust length to dword boundary */
4945 	rem = length & 3;
4946 	dw_length = length >> 2;
4947 
4948 	for (index = 0; index < dw_length; index++) {
4949 		if ((work_offset + offset) & 0xFFFF0000) {
4950 			if (pm8001_ha->chip_id == chip_8001)
4951 				shift_value = ((gsm_dump_offset + offset) &
4952 						SHIFT_REG_64K_MASK);
4953 			else
4954 				shift_value = (((gsm_dump_offset + offset) &
4955 						SHIFT_REG_64K_MASK) >>
4956 						SHIFT_REG_BIT_SHIFT);
4957 
4958 			if (pm8001_ha->chip_id == chip_8001) {
4959 				gsm_base = GSM_BASE;
4960 				if (-1 == pm8001_bar4_shift(pm8001_ha,
4961 						(gsm_base + shift_value)))
4962 					return -EIO;
4963 			} else {
4964 				gsm_base = 0;
4965 				if (-1 == pm80xx_bar4_shift(pm8001_ha,
4966 						(gsm_base + shift_value)))
4967 					return -EIO;
4968 			}
4969 			gsm_dump_offset = (gsm_dump_offset + offset) &
4970 						0xFFFF0000;
4971 			work_offset = 0;
4972 			offset = offset & 0x0000FFFF;
4973 		}
4974 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
4975 						0x0000FFFF);
4976 		direct_data += sprintf(direct_data, "%08x ", value);
4977 		offset += 4;
4978 	}
4979 	if (rem != 0) {
4980 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
4981 						0x0000FFFF);
4982 		/* xfr for non_dw */
4983 		direct_data += sprintf(direct_data, "%08x ", value);
4984 	}
4985 	/* Shift back to BAR4 original address */
4986 	if (-1 == pm8001_bar4_shift(pm8001_ha, 0))
4987 			return -EIO;
4988 	pm8001_ha->fatal_forensic_shift_offset += 1024;
4989 
4990 	if (pm8001_ha->fatal_forensic_shift_offset >= 0x100000)
4991 		pm8001_ha->fatal_forensic_shift_offset = 0;
4992 	return direct_data - buf;
4993 }
4994 
4995 int
4996 pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
4997 	struct pm8001_device *pm8001_dev, u32 state)
4998 {
4999 	struct set_dev_state_req payload;
5000 	struct inbound_queue_table *circularQ;
5001 	struct pm8001_ccb_info *ccb;
5002 	int rc;
5003 	u32 tag;
5004 	u32 opc = OPC_INB_SET_DEVICE_STATE;
5005 	memset(&payload, 0, sizeof(payload));
5006 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
5007 	if (rc)
5008 		return -1;
5009 	ccb = &pm8001_ha->ccb_info[tag];
5010 	ccb->ccb_tag = tag;
5011 	ccb->device = pm8001_dev;
5012 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
5013 	payload.tag = cpu_to_le32(tag);
5014 	payload.device_id = cpu_to_le32(pm8001_dev->device_id);
5015 	payload.nds = cpu_to_le32(state);
5016 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
5017 			sizeof(payload), 0);
5018 	return rc;
5019 
5020 }
5021 
5022 static int
5023 pm8001_chip_sas_re_initialization(struct pm8001_hba_info *pm8001_ha)
5024 {
5025 	struct sas_re_initialization_req payload;
5026 	struct inbound_queue_table *circularQ;
5027 	struct pm8001_ccb_info *ccb;
5028 	int rc;
5029 	u32 tag;
5030 	u32 opc = OPC_INB_SAS_RE_INITIALIZE;
5031 	memset(&payload, 0, sizeof(payload));
5032 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
5033 	if (rc)
5034 		return -ENOMEM;
5035 	ccb = &pm8001_ha->ccb_info[tag];
5036 	ccb->ccb_tag = tag;
5037 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
5038 	payload.tag = cpu_to_le32(tag);
5039 	payload.SSAHOLT = cpu_to_le32(0xd << 25);
5040 	payload.sata_hol_tmo = cpu_to_le32(80);
5041 	payload.open_reject_cmdretries_data_retries = cpu_to_le32(0xff00ff);
5042 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
5043 			sizeof(payload), 0);
5044 	if (rc)
5045 		pm8001_tag_free(pm8001_ha, tag);
5046 	return rc;
5047 
5048 }
5049 
5050 const struct pm8001_dispatch pm8001_8001_dispatch = {
5051 	.name			= "pmc8001",
5052 	.chip_init		= pm8001_chip_init,
5053 	.chip_soft_rst		= pm8001_chip_soft_rst,
5054 	.chip_rst		= pm8001_hw_chip_rst,
5055 	.chip_iounmap		= pm8001_chip_iounmap,
5056 	.isr			= pm8001_chip_isr,
5057 	.is_our_interrupt	= pm8001_chip_is_our_interrupt,
5058 	.isr_process_oq		= process_oq,
5059 	.interrupt_enable 	= pm8001_chip_interrupt_enable,
5060 	.interrupt_disable	= pm8001_chip_interrupt_disable,
5061 	.make_prd		= pm8001_chip_make_sg,
5062 	.smp_req		= pm8001_chip_smp_req,
5063 	.ssp_io_req		= pm8001_chip_ssp_io_req,
5064 	.sata_req		= pm8001_chip_sata_req,
5065 	.phy_start_req		= pm8001_chip_phy_start_req,
5066 	.phy_stop_req		= pm8001_chip_phy_stop_req,
5067 	.reg_dev_req		= pm8001_chip_reg_dev_req,
5068 	.dereg_dev_req		= pm8001_chip_dereg_dev_req,
5069 	.phy_ctl_req		= pm8001_chip_phy_ctl_req,
5070 	.task_abort		= pm8001_chip_abort_task,
5071 	.ssp_tm_req		= pm8001_chip_ssp_tm_req,
5072 	.get_nvmd_req		= pm8001_chip_get_nvmd_req,
5073 	.set_nvmd_req		= pm8001_chip_set_nvmd_req,
5074 	.fw_flash_update_req	= pm8001_chip_fw_flash_update_req,
5075 	.set_dev_state_req	= pm8001_chip_set_dev_state_req,
5076 	.sas_re_init_req	= pm8001_chip_sas_re_initialization,
5077 	.fatal_errors		= pm80xx_fatal_errors,
5078 };
5079