xref: /openbmc/linux/drivers/scsi/pm8001/pm8001_hwi.c (revision 3180b64a)
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_MAX_INB_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 		offsetib = i * 0x20;
244 		pm8001_ha->inbnd_q_tbl[i].pi_pci_bar		=
245 			get_pci_bar_index(pm8001_mr32(addressib,
246 				(offsetib + 0x14)));
247 		pm8001_ha->inbnd_q_tbl[i].pi_offset		=
248 			pm8001_mr32(addressib, (offsetib + 0x18));
249 		pm8001_ha->inbnd_q_tbl[i].producer_idx		= 0;
250 		pm8001_ha->inbnd_q_tbl[i].consumer_index	= 0;
251 	}
252 	for (i = 0; i < PM8001_MAX_OUTB_NUM; i++) {
253 		pm8001_ha->outbnd_q_tbl[i].element_size_cnt	=
254 			PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x01<<30);
255 		pm8001_ha->outbnd_q_tbl[i].upper_base_addr	=
256 			pm8001_ha->memoryMap.region[ob_offset + i].phys_addr_hi;
257 		pm8001_ha->outbnd_q_tbl[i].lower_base_addr	=
258 			pm8001_ha->memoryMap.region[ob_offset + i].phys_addr_lo;
259 		pm8001_ha->outbnd_q_tbl[i].base_virt		=
260 		  (u8 *)pm8001_ha->memoryMap.region[ob_offset + i].virt_ptr;
261 		pm8001_ha->outbnd_q_tbl[i].total_length		=
262 			pm8001_ha->memoryMap.region[ob_offset + i].total_len;
263 		pm8001_ha->outbnd_q_tbl[i].pi_upper_base_addr	=
264 			pm8001_ha->memoryMap.region[pi_offset + i].phys_addr_hi;
265 		pm8001_ha->outbnd_q_tbl[i].pi_lower_base_addr	=
266 			pm8001_ha->memoryMap.region[pi_offset + i].phys_addr_lo;
267 		pm8001_ha->outbnd_q_tbl[i].interrup_vec_cnt_delay	=
268 			0 | (10 << 16) | (i << 24);
269 		pm8001_ha->outbnd_q_tbl[i].pi_virt		=
270 			pm8001_ha->memoryMap.region[pi_offset + i].virt_ptr;
271 		offsetob = i * 0x24;
272 		pm8001_ha->outbnd_q_tbl[i].ci_pci_bar		=
273 			get_pci_bar_index(pm8001_mr32(addressob,
274 			offsetob + 0x14));
275 		pm8001_ha->outbnd_q_tbl[i].ci_offset		=
276 			pm8001_mr32(addressob, (offsetob + 0x18));
277 		pm8001_ha->outbnd_q_tbl[i].consumer_idx		= 0;
278 		pm8001_ha->outbnd_q_tbl[i].producer_index	= 0;
279 	}
280 }
281 
282 /**
283  * update_main_config_table - update the main default table to the HBA.
284  * @pm8001_ha: our hba card information
285  */
286 static void update_main_config_table(struct pm8001_hba_info *pm8001_ha)
287 {
288 	void __iomem *address = pm8001_ha->main_cfg_tbl_addr;
289 	pm8001_mw32(address, 0x24,
290 		pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_q_nppd_hppd);
291 	pm8001_mw32(address, 0x28,
292 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid0_3);
293 	pm8001_mw32(address, 0x2C,
294 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid4_7);
295 	pm8001_mw32(address, 0x30,
296 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid0_3);
297 	pm8001_mw32(address, 0x34,
298 		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid4_7);
299 	pm8001_mw32(address, 0x38,
300 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
301 					outbound_tgt_ITNexus_event_pid0_3);
302 	pm8001_mw32(address, 0x3C,
303 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
304 					outbound_tgt_ITNexus_event_pid4_7);
305 	pm8001_mw32(address, 0x40,
306 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
307 					outbound_tgt_ssp_event_pid0_3);
308 	pm8001_mw32(address, 0x44,
309 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
310 					outbound_tgt_ssp_event_pid4_7);
311 	pm8001_mw32(address, 0x48,
312 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
313 					outbound_tgt_smp_event_pid0_3);
314 	pm8001_mw32(address, 0x4C,
315 		pm8001_ha->main_cfg_tbl.pm8001_tbl.
316 					outbound_tgt_smp_event_pid4_7);
317 	pm8001_mw32(address, 0x50,
318 		pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_event_log_addr);
319 	pm8001_mw32(address, 0x54,
320 		pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_event_log_addr);
321 	pm8001_mw32(address, 0x58,
322 		pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_size);
323 	pm8001_mw32(address, 0x5C,
324 		pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_option);
325 	pm8001_mw32(address, 0x60,
326 		pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_iop_event_log_addr);
327 	pm8001_mw32(address, 0x64,
328 		pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_iop_event_log_addr);
329 	pm8001_mw32(address, 0x68,
330 		pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_size);
331 	pm8001_mw32(address, 0x6C,
332 		pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_option);
333 	pm8001_mw32(address, 0x70,
334 		pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_interrupt);
335 }
336 
337 /**
338  * update_inbnd_queue_table - update the inbound queue table to the HBA.
339  * @pm8001_ha: our hba card information
340  * @number: entry in the queue
341  */
342 static void update_inbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
343 				     int number)
344 {
345 	void __iomem *address = pm8001_ha->inbnd_q_tbl_addr;
346 	u16 offset = number * 0x20;
347 	pm8001_mw32(address, offset + 0x00,
348 		pm8001_ha->inbnd_q_tbl[number].element_pri_size_cnt);
349 	pm8001_mw32(address, offset + 0x04,
350 		pm8001_ha->inbnd_q_tbl[number].upper_base_addr);
351 	pm8001_mw32(address, offset + 0x08,
352 		pm8001_ha->inbnd_q_tbl[number].lower_base_addr);
353 	pm8001_mw32(address, offset + 0x0C,
354 		pm8001_ha->inbnd_q_tbl[number].ci_upper_base_addr);
355 	pm8001_mw32(address, offset + 0x10,
356 		pm8001_ha->inbnd_q_tbl[number].ci_lower_base_addr);
357 }
358 
359 /**
360  * update_outbnd_queue_table - update the outbound queue table to the HBA.
361  * @pm8001_ha: our hba card information
362  * @number: entry in the queue
363  */
364 static void update_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
365 				      int number)
366 {
367 	void __iomem *address = pm8001_ha->outbnd_q_tbl_addr;
368 	u16 offset = number * 0x24;
369 	pm8001_mw32(address, offset + 0x00,
370 		pm8001_ha->outbnd_q_tbl[number].element_size_cnt);
371 	pm8001_mw32(address, offset + 0x04,
372 		pm8001_ha->outbnd_q_tbl[number].upper_base_addr);
373 	pm8001_mw32(address, offset + 0x08,
374 		pm8001_ha->outbnd_q_tbl[number].lower_base_addr);
375 	pm8001_mw32(address, offset + 0x0C,
376 		pm8001_ha->outbnd_q_tbl[number].pi_upper_base_addr);
377 	pm8001_mw32(address, offset + 0x10,
378 		pm8001_ha->outbnd_q_tbl[number].pi_lower_base_addr);
379 	pm8001_mw32(address, offset + 0x1C,
380 		pm8001_ha->outbnd_q_tbl[number].interrup_vec_cnt_delay);
381 }
382 
383 /**
384  * pm8001_bar4_shift - function is called to shift BAR base address
385  * @pm8001_ha : our hba card infomation
386  * @shiftValue : shifting value in memory bar.
387  */
388 int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue)
389 {
390 	u32 regVal;
391 	unsigned long start;
392 
393 	/* program the inbound AXI translation Lower Address */
394 	pm8001_cw32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW, shiftValue);
395 
396 	/* confirm the setting is written */
397 	start = jiffies + HZ; /* 1 sec */
398 	do {
399 		regVal = pm8001_cr32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW);
400 	} while ((regVal != shiftValue) && time_before(jiffies, start));
401 
402 	if (regVal != shiftValue) {
403 		PM8001_INIT_DBG(pm8001_ha,
404 			pm8001_printk("TIMEOUT:SPC_IBW_AXI_TRANSLATION_LOW"
405 			" = 0x%x\n", regVal));
406 		return -1;
407 	}
408 	return 0;
409 }
410 
411 /**
412  * mpi_set_phys_g3_with_ssc
413  * @pm8001_ha: our hba card information
414  * @SSCbit: set SSCbit to 0 to disable all phys ssc; 1 to enable all phys ssc.
415  */
416 static void mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha,
417 				     u32 SSCbit)
418 {
419 	u32 value, offset, i;
420 	unsigned long flags;
421 
422 #define SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR 0x00030000
423 #define SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR 0x00040000
424 #define SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET 0x1074
425 #define SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET 0x1074
426 #define PHY_G3_WITHOUT_SSC_BIT_SHIFT 12
427 #define PHY_G3_WITH_SSC_BIT_SHIFT 13
428 #define SNW3_PHY_CAPABILITIES_PARITY 31
429 
430    /*
431     * Using shifted destination address 0x3_0000:0x1074 + 0x4000*N (N=0:3)
432     * Using shifted destination address 0x4_0000:0x1074 + 0x4000*(N-4) (N=4:7)
433     */
434 	spin_lock_irqsave(&pm8001_ha->lock, flags);
435 	if (-1 == pm8001_bar4_shift(pm8001_ha,
436 				SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR)) {
437 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
438 		return;
439 	}
440 
441 	for (i = 0; i < 4; i++) {
442 		offset = SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET + 0x4000 * i;
443 		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
444 	}
445 	/* shift membase 3 for SAS2_SETTINGS_LOCAL_PHY 4 - 7 */
446 	if (-1 == pm8001_bar4_shift(pm8001_ha,
447 				SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR)) {
448 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
449 		return;
450 	}
451 	for (i = 4; i < 8; i++) {
452 		offset = SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
453 		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
454 	}
455 	/*************************************************************
456 	Change the SSC upspreading value to 0x0 so that upspreading is disabled.
457 	Device MABC SMOD0 Controls
458 	Address: (via MEMBASE-III):
459 	Using shifted destination address 0x0_0000: with Offset 0xD8
460 
461 	31:28 R/W Reserved Do not change
462 	27:24 R/W SAS_SMOD_SPRDUP 0000
463 	23:20 R/W SAS_SMOD_SPRDDN 0000
464 	19:0  R/W  Reserved Do not change
465 	Upon power-up this register will read as 0x8990c016,
466 	and I would like you to change the SAS_SMOD_SPRDUP bits to 0b0000
467 	so that the written value will be 0x8090c016.
468 	This will ensure only down-spreading SSC is enabled on the SPC.
469 	*************************************************************/
470 	value = pm8001_cr32(pm8001_ha, 2, 0xd8);
471 	pm8001_cw32(pm8001_ha, 2, 0xd8, 0x8000C016);
472 
473 	/*set the shifted destination address to 0x0 to avoid error operation */
474 	pm8001_bar4_shift(pm8001_ha, 0x0);
475 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
476 	return;
477 }
478 
479 /**
480  * mpi_set_open_retry_interval_reg
481  * @pm8001_ha: our hba card information
482  * @interval: interval time for each OPEN_REJECT (RETRY). The units are in 1us.
483  */
484 static void mpi_set_open_retry_interval_reg(struct pm8001_hba_info *pm8001_ha,
485 					    u32 interval)
486 {
487 	u32 offset;
488 	u32 value;
489 	u32 i;
490 	unsigned long flags;
491 
492 #define OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR 0x00030000
493 #define OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR 0x00040000
494 #define OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET 0x30B4
495 #define OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET 0x30B4
496 #define OPEN_RETRY_INTERVAL_REG_MASK 0x0000FFFF
497 
498 	value = interval & OPEN_RETRY_INTERVAL_REG_MASK;
499 	spin_lock_irqsave(&pm8001_ha->lock, flags);
500 	/* shift bar and set the OPEN_REJECT(RETRY) interval time of PHY 0 -3.*/
501 	if (-1 == pm8001_bar4_shift(pm8001_ha,
502 			     OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR)) {
503 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
504 		return;
505 	}
506 	for (i = 0; i < 4; i++) {
507 		offset = OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET + 0x4000 * i;
508 		pm8001_cw32(pm8001_ha, 2, offset, value);
509 	}
510 
511 	if (-1 == pm8001_bar4_shift(pm8001_ha,
512 			     OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR)) {
513 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
514 		return;
515 	}
516 	for (i = 4; i < 8; i++) {
517 		offset = OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
518 		pm8001_cw32(pm8001_ha, 2, offset, value);
519 	}
520 	/*set the shifted destination address to 0x0 to avoid error operation */
521 	pm8001_bar4_shift(pm8001_ha, 0x0);
522 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
523 	return;
524 }
525 
526 /**
527  * mpi_init_check - check firmware initialization status.
528  * @pm8001_ha: our hba card information
529  */
530 static int mpi_init_check(struct pm8001_hba_info *pm8001_ha)
531 {
532 	u32 max_wait_count;
533 	u32 value;
534 	u32 gst_len_mpistate;
535 	/* Write bit0=1 to Inbound DoorBell Register to tell the SPC FW the
536 	table is updated */
537 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_UPDATE);
538 	/* wait until Inbound DoorBell Clear Register toggled */
539 	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
540 	do {
541 		udelay(1);
542 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
543 		value &= SPC_MSGU_CFG_TABLE_UPDATE;
544 	} while ((value != 0) && (--max_wait_count));
545 
546 	if (!max_wait_count)
547 		return -1;
548 	/* check the MPI-State for initialization */
549 	gst_len_mpistate =
550 		pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
551 		GST_GSTLEN_MPIS_OFFSET);
552 	if (GST_MPI_STATE_INIT != (gst_len_mpistate & GST_MPI_STATE_MASK))
553 		return -1;
554 	/* check MPI Initialization error */
555 	gst_len_mpistate = gst_len_mpistate >> 16;
556 	if (0x0000 != gst_len_mpistate)
557 		return -1;
558 	return 0;
559 }
560 
561 /**
562  * check_fw_ready - The LLDD check if the FW is ready, if not, return error.
563  * @pm8001_ha: our hba card information
564  */
565 static int check_fw_ready(struct pm8001_hba_info *pm8001_ha)
566 {
567 	u32 value, value1;
568 	u32 max_wait_count;
569 	/* check error state */
570 	value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
571 	value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
572 	/* check AAP error */
573 	if (SCRATCH_PAD1_ERR == (value & SCRATCH_PAD_STATE_MASK)) {
574 		/* error state */
575 		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
576 		return -1;
577 	}
578 
579 	/* check IOP error */
580 	if (SCRATCH_PAD2_ERR == (value1 & SCRATCH_PAD_STATE_MASK)) {
581 		/* error state */
582 		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3);
583 		return -1;
584 	}
585 
586 	/* bit 4-31 of scratch pad1 should be zeros if it is not
587 	in error state*/
588 	if (value & SCRATCH_PAD1_STATE_MASK) {
589 		/* error case */
590 		pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
591 		return -1;
592 	}
593 
594 	/* bit 2, 4-31 of scratch pad2 should be zeros if it is not
595 	in error state */
596 	if (value1 & SCRATCH_PAD2_STATE_MASK) {
597 		/* error case */
598 		return -1;
599 	}
600 
601 	max_wait_count = 1 * 1000 * 1000;/* 1 sec timeout */
602 
603 	/* wait until scratch pad 1 and 2 registers in ready state  */
604 	do {
605 		udelay(1);
606 		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
607 			& SCRATCH_PAD1_RDY;
608 		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
609 			& SCRATCH_PAD2_RDY;
610 		if ((--max_wait_count) == 0)
611 			return -1;
612 	} while ((value != SCRATCH_PAD1_RDY) || (value1 != SCRATCH_PAD2_RDY));
613 	return 0;
614 }
615 
616 static void init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
617 {
618 	void __iomem *base_addr;
619 	u32	value;
620 	u32	offset;
621 	u32	pcibar;
622 	u32	pcilogic;
623 
624 	value = pm8001_cr32(pm8001_ha, 0, 0x44);
625 	offset = value & 0x03FFFFFF;
626 	PM8001_INIT_DBG(pm8001_ha,
627 		pm8001_printk("Scratchpad 0 Offset: %x\n", offset));
628 	pcilogic = (value & 0xFC000000) >> 26;
629 	pcibar = get_pci_bar_index(pcilogic);
630 	PM8001_INIT_DBG(pm8001_ha,
631 		pm8001_printk("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 	u8 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_FAIL_DBG(pm8001_ha,
656 				pm8001_printk("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_FAIL_DBG(pm8001_ha,
664 			pm8001_printk("Firmware is not ready!\n"));
665 		return -EBUSY;
666 	}
667 
668 	/* Initialize pci space address eg: mpi offset */
669 	init_pci_device_addresses(pm8001_ha);
670 	init_default_table_values(pm8001_ha);
671 	read_main_config_table(pm8001_ha);
672 	read_general_status_table(pm8001_ha);
673 	read_inbnd_queue_table(pm8001_ha);
674 	read_outbnd_queue_table(pm8001_ha);
675 	/* update main config table ,inbound table and outbound table */
676 	update_main_config_table(pm8001_ha);
677 	for (i = 0; i < PM8001_MAX_INB_NUM; i++)
678 		update_inbnd_queue_table(pm8001_ha, i);
679 	for (i = 0; i < PM8001_MAX_OUTB_NUM; i++)
680 		update_outbnd_queue_table(pm8001_ha, i);
681 	/* 8081 controller donot require these operations */
682 	if (deviceid != 0x8081 && deviceid != 0x0042) {
683 		mpi_set_phys_g3_with_ssc(pm8001_ha, 0);
684 		/* 7->130ms, 34->500ms, 119->1.5s */
685 		mpi_set_open_retry_interval_reg(pm8001_ha, 119);
686 	}
687 	/* notify firmware update finished and check initialization status */
688 	if (0 == mpi_init_check(pm8001_ha)) {
689 		PM8001_INIT_DBG(pm8001_ha,
690 			pm8001_printk("MPI initialize successful!\n"));
691 	} else
692 		return -EBUSY;
693 	/*This register is a 16-bit timer with a resolution of 1us. This is the
694 	timer used for interrupt delay/coalescing in the PCIe Application Layer.
695 	Zero is not a valid value. A value of 1 in the register will cause the
696 	interrupts to be normal. A value greater than 1 will cause coalescing
697 	delays.*/
698 	pm8001_cw32(pm8001_ha, 1, 0x0033c0, 0x1);
699 	pm8001_cw32(pm8001_ha, 1, 0x0033c4, 0x0);
700 	return 0;
701 }
702 
703 static int mpi_uninit_check(struct pm8001_hba_info *pm8001_ha)
704 {
705 	u32 max_wait_count;
706 	u32 value;
707 	u32 gst_len_mpistate;
708 	u16 deviceid;
709 	pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
710 	if (deviceid == 0x8081 || deviceid == 0x0042) {
711 		if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_SM_BASE)) {
712 			PM8001_FAIL_DBG(pm8001_ha,
713 				pm8001_printk("Shift Bar4 to 0x%x failed\n",
714 					GSM_SM_BASE));
715 			return -1;
716 		}
717 	}
718 	init_pci_device_addresses(pm8001_ha);
719 	/* Write bit1=1 to Inbound DoorBell Register to tell the SPC FW the
720 	table is stop */
721 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_RESET);
722 
723 	/* wait until Inbound DoorBell Clear Register toggled */
724 	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
725 	do {
726 		udelay(1);
727 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
728 		value &= SPC_MSGU_CFG_TABLE_RESET;
729 	} while ((value != 0) && (--max_wait_count));
730 
731 	if (!max_wait_count) {
732 		PM8001_FAIL_DBG(pm8001_ha,
733 			pm8001_printk("TIMEOUT:IBDB value/=0x%x\n", value));
734 		return -1;
735 	}
736 
737 	/* check the MPI-State for termination in progress */
738 	/* wait until Inbound DoorBell Clear Register toggled */
739 	max_wait_count = 1 * 1000 * 1000;  /* 1 sec */
740 	do {
741 		udelay(1);
742 		gst_len_mpistate =
743 			pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
744 			GST_GSTLEN_MPIS_OFFSET);
745 		if (GST_MPI_STATE_UNINIT ==
746 			(gst_len_mpistate & GST_MPI_STATE_MASK))
747 			break;
748 	} while (--max_wait_count);
749 	if (!max_wait_count) {
750 		PM8001_FAIL_DBG(pm8001_ha,
751 			pm8001_printk(" TIME OUT MPI State = 0x%x\n",
752 				gst_len_mpistate & GST_MPI_STATE_MASK));
753 		return -1;
754 	}
755 	return 0;
756 }
757 
758 /**
759  * soft_reset_ready_check - Function to check FW is ready for soft reset.
760  * @pm8001_ha: our hba card information
761  */
762 static u32 soft_reset_ready_check(struct pm8001_hba_info *pm8001_ha)
763 {
764 	u32 regVal, regVal1, regVal2;
765 	if (mpi_uninit_check(pm8001_ha) != 0) {
766 		PM8001_FAIL_DBG(pm8001_ha,
767 			pm8001_printk("MPI state is not ready\n"));
768 		return -1;
769 	}
770 	/* read the scratch pad 2 register bit 2 */
771 	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
772 		& SCRATCH_PAD2_FWRDY_RST;
773 	if (regVal == SCRATCH_PAD2_FWRDY_RST) {
774 		PM8001_INIT_DBG(pm8001_ha,
775 			pm8001_printk("Firmware is ready for reset .\n"));
776 	} else {
777 		unsigned long flags;
778 		/* Trigger NMI twice via RB6 */
779 		spin_lock_irqsave(&pm8001_ha->lock, flags);
780 		if (-1 == pm8001_bar4_shift(pm8001_ha, RB6_ACCESS_REG)) {
781 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
782 			PM8001_FAIL_DBG(pm8001_ha,
783 				pm8001_printk("Shift Bar4 to 0x%x failed\n",
784 					RB6_ACCESS_REG));
785 			return -1;
786 		}
787 		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET,
788 			RB6_MAGIC_NUMBER_RST);
789 		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET, RB6_MAGIC_NUMBER_RST);
790 		/* wait for 100 ms */
791 		mdelay(100);
792 		regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2) &
793 			SCRATCH_PAD2_FWRDY_RST;
794 		if (regVal != SCRATCH_PAD2_FWRDY_RST) {
795 			regVal1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
796 			regVal2 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
797 			PM8001_FAIL_DBG(pm8001_ha,
798 				pm8001_printk("TIMEOUT:MSGU_SCRATCH_PAD1"
799 				"=0x%x, MSGU_SCRATCH_PAD2=0x%x\n",
800 				regVal1, regVal2));
801 			PM8001_FAIL_DBG(pm8001_ha,
802 				pm8001_printk("SCRATCH_PAD0 value = 0x%x\n",
803 				pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0)));
804 			PM8001_FAIL_DBG(pm8001_ha,
805 				pm8001_printk("SCRATCH_PAD3 value = 0x%x\n",
806 				pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3)));
807 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
808 			return -1;
809 		}
810 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
811 	}
812 	return 0;
813 }
814 
815 /**
816  * pm8001_chip_soft_rst - soft reset the PM8001 chip, so that the clear all
817  * the FW register status to the originated status.
818  * @pm8001_ha: our hba card information
819  */
820 static int
821 pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha)
822 {
823 	u32	regVal, toggleVal;
824 	u32	max_wait_count;
825 	u32	regVal1, regVal2, regVal3;
826 	u32	signature = 0x252acbcd; /* for host scratch pad0 */
827 	unsigned long flags;
828 
829 	/* step1: Check FW is ready for soft reset */
830 	if (soft_reset_ready_check(pm8001_ha) != 0) {
831 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("FW is not ready\n"));
832 		return -1;
833 	}
834 
835 	/* step 2: clear NMI status register on AAP1 and IOP, write the same
836 	value to clear */
837 	/* map 0x60000 to BAR4(0x20), BAR2(win) */
838 	spin_lock_irqsave(&pm8001_ha->lock, flags);
839 	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_AAP1_ADDR_BASE)) {
840 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
841 		PM8001_FAIL_DBG(pm8001_ha,
842 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
843 			MBIC_AAP1_ADDR_BASE));
844 		return -1;
845 	}
846 	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP);
847 	PM8001_INIT_DBG(pm8001_ha,
848 		pm8001_printk("MBIC - NMI Enable VPE0 (IOP)= 0x%x\n", regVal));
849 	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP, 0x0);
850 	/* map 0x70000 to BAR4(0x20), BAR2(win) */
851 	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_IOP_ADDR_BASE)) {
852 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
853 		PM8001_FAIL_DBG(pm8001_ha,
854 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
855 			MBIC_IOP_ADDR_BASE));
856 		return -1;
857 	}
858 	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1);
859 	PM8001_INIT_DBG(pm8001_ha,
860 		pm8001_printk("MBIC - NMI Enable VPE0 (AAP1)= 0x%x\n", regVal));
861 	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1, 0x0);
862 
863 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE);
864 	PM8001_INIT_DBG(pm8001_ha,
865 		pm8001_printk("PCIE -Event Interrupt Enable = 0x%x\n", regVal));
866 	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE, 0x0);
867 
868 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT);
869 	PM8001_INIT_DBG(pm8001_ha,
870 		pm8001_printk("PCIE - Event Interrupt  = 0x%x\n", regVal));
871 	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT, regVal);
872 
873 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE);
874 	PM8001_INIT_DBG(pm8001_ha,
875 		pm8001_printk("PCIE -Error Interrupt Enable = 0x%x\n", regVal));
876 	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE, 0x0);
877 
878 	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT);
879 	PM8001_INIT_DBG(pm8001_ha,
880 		pm8001_printk("PCIE - Error Interrupt = 0x%x\n", regVal));
881 	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT, regVal);
882 
883 	/* read the scratch pad 1 register bit 2 */
884 	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
885 		& SCRATCH_PAD1_RST;
886 	toggleVal = regVal ^ SCRATCH_PAD1_RST;
887 
888 	/* set signature in host scratch pad0 register to tell SPC that the
889 	host performs the soft reset */
890 	pm8001_cw32(pm8001_ha, 0, MSGU_HOST_SCRATCH_PAD_0, signature);
891 
892 	/* read required registers for confirmming */
893 	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
894 	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
895 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
896 		PM8001_FAIL_DBG(pm8001_ha,
897 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
898 			GSM_ADDR_BASE));
899 		return -1;
900 	}
901 	PM8001_INIT_DBG(pm8001_ha,
902 		pm8001_printk("GSM 0x0(0x00007b88)-GSM Configuration and"
903 		" Reset = 0x%x\n",
904 		pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
905 
906 	/* step 3: host read GSM Configuration and Reset register */
907 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
908 	/* Put those bits to low */
909 	/* GSM XCBI offset = 0x70 0000
910 	0x00 Bit 13 COM_SLV_SW_RSTB 1
911 	0x00 Bit 12 QSSP_SW_RSTB 1
912 	0x00 Bit 11 RAAE_SW_RSTB 1
913 	0x00 Bit 9 RB_1_SW_RSTB 1
914 	0x00 Bit 8 SM_SW_RSTB 1
915 	*/
916 	regVal &= ~(0x00003b00);
917 	/* host write GSM Configuration and Reset register */
918 	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
919 	PM8001_INIT_DBG(pm8001_ha,
920 		pm8001_printk("GSM 0x0 (0x00007b88 ==> 0x00004088) - GSM "
921 		"Configuration and Reset is set to = 0x%x\n",
922 		pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
923 
924 	/* step 4: */
925 	/* disable GSM - Read Address Parity Check */
926 	regVal1 = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
927 	PM8001_INIT_DBG(pm8001_ha,
928 		pm8001_printk("GSM 0x700038 - Read Address Parity Check "
929 		"Enable = 0x%x\n", regVal1));
930 	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, 0x0);
931 	PM8001_INIT_DBG(pm8001_ha,
932 		pm8001_printk("GSM 0x700038 - Read Address Parity Check Enable"
933 		"is set to = 0x%x\n",
934 		pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK)));
935 
936 	/* disable GSM - Write Address Parity Check */
937 	regVal2 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
938 	PM8001_INIT_DBG(pm8001_ha,
939 		pm8001_printk("GSM 0x700040 - Write Address Parity Check"
940 		" Enable = 0x%x\n", regVal2));
941 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, 0x0);
942 	PM8001_INIT_DBG(pm8001_ha,
943 		pm8001_printk("GSM 0x700040 - Write Address Parity Check "
944 		"Enable is set to = 0x%x\n",
945 		pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK)));
946 
947 	/* disable GSM - Write Data Parity Check */
948 	regVal3 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
949 	PM8001_INIT_DBG(pm8001_ha,
950 		pm8001_printk("GSM 0x300048 - Write Data Parity Check"
951 		" Enable = 0x%x\n", regVal3));
952 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, 0x0);
953 	PM8001_INIT_DBG(pm8001_ha,
954 		pm8001_printk("GSM 0x300048 - Write Data Parity Check Enable"
955 		"is set to = 0x%x\n",
956 	pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK)));
957 
958 	/* step 5: delay 10 usec */
959 	udelay(10);
960 	/* step 5-b: set GPIO-0 output control to tristate anyway */
961 	if (-1 == pm8001_bar4_shift(pm8001_ha, GPIO_ADDR_BASE)) {
962 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
963 		PM8001_INIT_DBG(pm8001_ha,
964 				pm8001_printk("Shift Bar4 to 0x%x failed\n",
965 				GPIO_ADDR_BASE));
966 		return -1;
967 	}
968 	regVal = pm8001_cr32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET);
969 	PM8001_INIT_DBG(pm8001_ha,
970 			pm8001_printk("GPIO Output Control Register:"
971 			" = 0x%x\n", regVal));
972 	/* set GPIO-0 output control to tri-state */
973 	regVal &= 0xFFFFFFFC;
974 	pm8001_cw32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET, regVal);
975 
976 	/* Step 6: Reset the IOP and AAP1 */
977 	/* map 0x00000 to BAR4(0x20), BAR2(win) */
978 	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
979 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
980 		PM8001_FAIL_DBG(pm8001_ha,
981 			pm8001_printk("SPC Shift Bar4 to 0x%x failed\n",
982 			SPC_TOP_LEVEL_ADDR_BASE));
983 		return -1;
984 	}
985 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
986 	PM8001_INIT_DBG(pm8001_ha,
987 		pm8001_printk("Top Register before resetting IOP/AAP1"
988 		":= 0x%x\n", regVal));
989 	regVal &= ~(SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
990 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
991 
992 	/* step 7: Reset the BDMA/OSSP */
993 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
994 	PM8001_INIT_DBG(pm8001_ha,
995 		pm8001_printk("Top Register before resetting BDMA/OSSP"
996 		": = 0x%x\n", regVal));
997 	regVal &= ~(SPC_REG_RESET_BDMA_CORE | SPC_REG_RESET_OSSP);
998 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
999 
1000 	/* step 8: delay 10 usec */
1001 	udelay(10);
1002 
1003 	/* step 9: bring the BDMA and OSSP out of reset */
1004 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
1005 	PM8001_INIT_DBG(pm8001_ha,
1006 		pm8001_printk("Top Register before bringing up BDMA/OSSP"
1007 		":= 0x%x\n", regVal));
1008 	regVal |= (SPC_REG_RESET_BDMA_CORE | SPC_REG_RESET_OSSP);
1009 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
1010 
1011 	/* step 10: delay 10 usec */
1012 	udelay(10);
1013 
1014 	/* step 11: reads and sets the GSM Configuration and Reset Register */
1015 	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
1016 	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
1017 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1018 		PM8001_FAIL_DBG(pm8001_ha,
1019 			pm8001_printk("SPC Shift Bar4 to 0x%x failed\n",
1020 			GSM_ADDR_BASE));
1021 		return -1;
1022 	}
1023 	PM8001_INIT_DBG(pm8001_ha,
1024 		pm8001_printk("GSM 0x0 (0x00007b88)-GSM Configuration and "
1025 		"Reset = 0x%x\n", pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
1026 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
1027 	/* Put those bits to high */
1028 	/* GSM XCBI offset = 0x70 0000
1029 	0x00 Bit 13 COM_SLV_SW_RSTB 1
1030 	0x00 Bit 12 QSSP_SW_RSTB 1
1031 	0x00 Bit 11 RAAE_SW_RSTB 1
1032 	0x00 Bit 9   RB_1_SW_RSTB 1
1033 	0x00 Bit 8   SM_SW_RSTB 1
1034 	*/
1035 	regVal |= (GSM_CONFIG_RESET_VALUE);
1036 	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
1037 	PM8001_INIT_DBG(pm8001_ha,
1038 		pm8001_printk("GSM (0x00004088 ==> 0x00007b88) - GSM"
1039 		" Configuration and Reset is set to = 0x%x\n",
1040 		pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET)));
1041 
1042 	/* step 12: Restore GSM - Read Address Parity Check */
1043 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
1044 	/* just for debugging */
1045 	PM8001_INIT_DBG(pm8001_ha,
1046 		pm8001_printk("GSM 0x700038 - Read Address Parity Check Enable"
1047 		" = 0x%x\n", regVal));
1048 	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, regVal1);
1049 	PM8001_INIT_DBG(pm8001_ha,
1050 		pm8001_printk("GSM 0x700038 - Read Address Parity"
1051 		" Check Enable is set to = 0x%x\n",
1052 		pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK)));
1053 	/* Restore GSM - Write Address Parity Check */
1054 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
1055 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, regVal2);
1056 	PM8001_INIT_DBG(pm8001_ha,
1057 		pm8001_printk("GSM 0x700040 - Write Address Parity Check"
1058 		" Enable is set to = 0x%x\n",
1059 		pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK)));
1060 	/* Restore GSM - Write Data Parity Check */
1061 	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
1062 	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, regVal3);
1063 	PM8001_INIT_DBG(pm8001_ha,
1064 		pm8001_printk("GSM 0x700048 - Write Data Parity Check Enable"
1065 		"is set to = 0x%x\n",
1066 		pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK)));
1067 
1068 	/* step 13: bring the IOP and AAP1 out of reset */
1069 	/* map 0x00000 to BAR4(0x20), BAR2(win) */
1070 	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
1071 		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1072 		PM8001_FAIL_DBG(pm8001_ha,
1073 			pm8001_printk("Shift Bar4 to 0x%x failed\n",
1074 			SPC_TOP_LEVEL_ADDR_BASE));
1075 		return -1;
1076 	}
1077 	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
1078 	regVal |= (SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
1079 	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);
1080 
1081 	/* step 14: delay 10 usec - Normal Mode */
1082 	udelay(10);
1083 	/* check Soft Reset Normal mode or Soft Reset HDA mode */
1084 	if (signature == SPC_SOFT_RESET_SIGNATURE) {
1085 		/* step 15 (Normal Mode): wait until scratch pad1 register
1086 		bit 2 toggled */
1087 		max_wait_count = 2 * 1000 * 1000;/* 2 sec */
1088 		do {
1089 			udelay(1);
1090 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1) &
1091 				SCRATCH_PAD1_RST;
1092 		} while ((regVal != toggleVal) && (--max_wait_count));
1093 
1094 		if (!max_wait_count) {
1095 			regVal = pm8001_cr32(pm8001_ha, 0,
1096 				MSGU_SCRATCH_PAD_1);
1097 			PM8001_FAIL_DBG(pm8001_ha,
1098 				pm8001_printk("TIMEOUT : ToggleVal 0x%x,"
1099 				"MSGU_SCRATCH_PAD1 = 0x%x\n",
1100 				toggleVal, regVal));
1101 			PM8001_FAIL_DBG(pm8001_ha,
1102 				pm8001_printk("SCRATCH_PAD0 value = 0x%x\n",
1103 				pm8001_cr32(pm8001_ha, 0,
1104 				MSGU_SCRATCH_PAD_0)));
1105 			PM8001_FAIL_DBG(pm8001_ha,
1106 				pm8001_printk("SCRATCH_PAD2 value = 0x%x\n",
1107 				pm8001_cr32(pm8001_ha, 0,
1108 				MSGU_SCRATCH_PAD_2)));
1109 			PM8001_FAIL_DBG(pm8001_ha,
1110 				pm8001_printk("SCRATCH_PAD3 value = 0x%x\n",
1111 				pm8001_cr32(pm8001_ha, 0,
1112 				MSGU_SCRATCH_PAD_3)));
1113 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1114 			return -1;
1115 		}
1116 
1117 		/* step 16 (Normal) - Clear ODMR and ODCR */
1118 		pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
1119 		pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);
1120 
1121 		/* step 17 (Normal Mode): wait for the FW and IOP to get
1122 		ready - 1 sec timeout */
1123 		/* Wait for the SPC Configuration Table to be ready */
1124 		if (check_fw_ready(pm8001_ha) == -1) {
1125 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
1126 			/* return error if MPI Configuration Table not ready */
1127 			PM8001_INIT_DBG(pm8001_ha,
1128 				pm8001_printk("FW not ready SCRATCH_PAD1"
1129 				" = 0x%x\n", regVal));
1130 			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
1131 			/* return error if MPI Configuration Table not ready */
1132 			PM8001_INIT_DBG(pm8001_ha,
1133 				pm8001_printk("FW not ready SCRATCH_PAD2"
1134 				" = 0x%x\n", regVal));
1135 			PM8001_INIT_DBG(pm8001_ha,
1136 				pm8001_printk("SCRATCH_PAD0 value = 0x%x\n",
1137 				pm8001_cr32(pm8001_ha, 0,
1138 				MSGU_SCRATCH_PAD_0)));
1139 			PM8001_INIT_DBG(pm8001_ha,
1140 				pm8001_printk("SCRATCH_PAD3 value = 0x%x\n",
1141 				pm8001_cr32(pm8001_ha, 0,
1142 				MSGU_SCRATCH_PAD_3)));
1143 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1144 			return -1;
1145 		}
1146 	}
1147 	pm8001_bar4_shift(pm8001_ha, 0);
1148 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1149 
1150 	PM8001_INIT_DBG(pm8001_ha,
1151 		pm8001_printk("SPC soft reset Complete\n"));
1152 	return 0;
1153 }
1154 
1155 static void pm8001_hw_chip_rst(struct pm8001_hba_info *pm8001_ha)
1156 {
1157 	u32 i;
1158 	u32 regVal;
1159 	PM8001_INIT_DBG(pm8001_ha,
1160 		pm8001_printk("chip reset start\n"));
1161 
1162 	/* do SPC chip reset. */
1163 	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
1164 	regVal &= ~(SPC_REG_RESET_DEVICE);
1165 	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);
1166 
1167 	/* delay 10 usec */
1168 	udelay(10);
1169 
1170 	/* bring chip reset out of reset */
1171 	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
1172 	regVal |= SPC_REG_RESET_DEVICE;
1173 	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);
1174 
1175 	/* delay 10 usec */
1176 	udelay(10);
1177 
1178 	/* wait for 20 msec until the firmware gets reloaded */
1179 	i = 20;
1180 	do {
1181 		mdelay(1);
1182 	} while ((--i) != 0);
1183 
1184 	PM8001_INIT_DBG(pm8001_ha,
1185 		pm8001_printk("chip reset finished\n"));
1186 }
1187 
1188 /**
1189  * pm8001_chip_iounmap - which maped when initialized.
1190  * @pm8001_ha: our hba card information
1191  */
1192 void pm8001_chip_iounmap(struct pm8001_hba_info *pm8001_ha)
1193 {
1194 	s8 bar, logical = 0;
1195 	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
1196 		/*
1197 		** logical BARs for SPC:
1198 		** bar 0 and 1 - logical BAR0
1199 		** bar 2 and 3 - logical BAR1
1200 		** bar4 - logical BAR2
1201 		** bar5 - logical BAR3
1202 		** Skip the appropriate assignments:
1203 		*/
1204 		if ((bar == 1) || (bar == 3))
1205 			continue;
1206 		if (pm8001_ha->io_mem[logical].memvirtaddr) {
1207 			iounmap(pm8001_ha->io_mem[logical].memvirtaddr);
1208 			logical++;
1209 		}
1210 	}
1211 }
1212 
1213 #ifndef PM8001_USE_MSIX
1214 /**
1215  * pm8001_chip_interrupt_enable - enable PM8001 chip interrupt
1216  * @pm8001_ha: our hba card information
1217  */
1218 static void
1219 pm8001_chip_intx_interrupt_enable(struct pm8001_hba_info *pm8001_ha)
1220 {
1221 	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);
1222 	pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
1223 }
1224 
1225  /**
1226   * pm8001_chip_intx_interrupt_disable- disable PM8001 chip interrupt
1227   * @pm8001_ha: our hba card information
1228   */
1229 static void
1230 pm8001_chip_intx_interrupt_disable(struct pm8001_hba_info *pm8001_ha)
1231 {
1232 	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_MASK_ALL);
1233 }
1234 
1235 #else
1236 
1237 /**
1238  * pm8001_chip_msix_interrupt_enable - enable PM8001 chip interrupt
1239  * @pm8001_ha: our hba card information
1240  * @int_vec_idx: interrupt number to enable
1241  */
1242 static void
1243 pm8001_chip_msix_interrupt_enable(struct pm8001_hba_info *pm8001_ha,
1244 	u32 int_vec_idx)
1245 {
1246 	u32 msi_index;
1247 	u32 value;
1248 	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
1249 	msi_index += MSIX_TABLE_BASE;
1250 	pm8001_cw32(pm8001_ha, 0, msi_index, MSIX_INTERRUPT_ENABLE);
1251 	value = (1 << int_vec_idx);
1252 	pm8001_cw32(pm8001_ha, 0,  MSGU_ODCR, value);
1253 
1254 }
1255 
1256 /**
1257  * pm8001_chip_msix_interrupt_disable - disable PM8001 chip interrupt
1258  * @pm8001_ha: our hba card information
1259  * @int_vec_idx: interrupt number to disable
1260  */
1261 static void
1262 pm8001_chip_msix_interrupt_disable(struct pm8001_hba_info *pm8001_ha,
1263 	u32 int_vec_idx)
1264 {
1265 	u32 msi_index;
1266 	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
1267 	msi_index += MSIX_TABLE_BASE;
1268 	pm8001_cw32(pm8001_ha, 0,  msi_index, MSIX_INTERRUPT_DISABLE);
1269 }
1270 #endif
1271 
1272 /**
1273  * pm8001_chip_interrupt_enable - enable PM8001 chip interrupt
1274  * @pm8001_ha: our hba card information
1275  * @vec: unused
1276  */
1277 static void
1278 pm8001_chip_interrupt_enable(struct pm8001_hba_info *pm8001_ha, u8 vec)
1279 {
1280 #ifdef PM8001_USE_MSIX
1281 	pm8001_chip_msix_interrupt_enable(pm8001_ha, 0);
1282 #else
1283 	pm8001_chip_intx_interrupt_enable(pm8001_ha);
1284 #endif
1285 }
1286 
1287 /**
1288  * pm8001_chip_intx_interrupt_disable- disable PM8001 chip interrupt
1289  * @pm8001_ha: our hba card information
1290  * @vec: unused
1291  */
1292 static void
1293 pm8001_chip_interrupt_disable(struct pm8001_hba_info *pm8001_ha, u8 vec)
1294 {
1295 #ifdef PM8001_USE_MSIX
1296 	pm8001_chip_msix_interrupt_disable(pm8001_ha, 0);
1297 #else
1298 	pm8001_chip_intx_interrupt_disable(pm8001_ha);
1299 #endif
1300 }
1301 
1302 /**
1303  * pm8001_mpi_msg_free_get - get the free message buffer for transfer
1304  * inbound queue.
1305  * @circularQ: the inbound queue  we want to transfer to HBA.
1306  * @messageSize: the message size of this transfer, normally it is 64 bytes
1307  * @messagePtr: the pointer to message.
1308  */
1309 int pm8001_mpi_msg_free_get(struct inbound_queue_table *circularQ,
1310 			    u16 messageSize, void **messagePtr)
1311 {
1312 	u32 offset, consumer_index;
1313 	struct mpi_msg_hdr *msgHeader;
1314 	u8 bcCount = 1; /* only support single buffer */
1315 
1316 	/* Checks is the requested message size can be allocated in this queue*/
1317 	if (messageSize > IOMB_SIZE_SPCV) {
1318 		*messagePtr = NULL;
1319 		return -1;
1320 	}
1321 
1322 	/* Stores the new consumer index */
1323 	consumer_index = pm8001_read_32(circularQ->ci_virt);
1324 	circularQ->consumer_index = cpu_to_le32(consumer_index);
1325 	if (((circularQ->producer_idx + bcCount) % PM8001_MPI_QUEUE) ==
1326 		le32_to_cpu(circularQ->consumer_index)) {
1327 		*messagePtr = NULL;
1328 		return -1;
1329 	}
1330 	/* get memory IOMB buffer address */
1331 	offset = circularQ->producer_idx * messageSize;
1332 	/* increment to next bcCount element */
1333 	circularQ->producer_idx = (circularQ->producer_idx + bcCount)
1334 				% PM8001_MPI_QUEUE;
1335 	/* Adds that distance to the base of the region virtual address plus
1336 	the message header size*/
1337 	msgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt	+ offset);
1338 	*messagePtr = ((void *)msgHeader) + sizeof(struct mpi_msg_hdr);
1339 	return 0;
1340 }
1341 
1342 /**
1343  * pm8001_mpi_build_cmd- build the message queue for transfer, update the PI to
1344  * FW to tell the fw to get this message from IOMB.
1345  * @pm8001_ha: our hba card information
1346  * @circularQ: the inbound queue we want to transfer to HBA.
1347  * @opCode: the operation code represents commands which LLDD and fw recognized.
1348  * @payload: the command payload of each operation command.
1349  * @nb: size in bytes of the command payload
1350  * @responseQueue: queue to interrupt on w/ command response (if any)
1351  */
1352 int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
1353 			 struct inbound_queue_table *circularQ,
1354 			 u32 opCode, void *payload, size_t nb,
1355 			 u32 responseQueue)
1356 {
1357 	u32 Header = 0, hpriority = 0, bc = 1, category = 0x02;
1358 	void *pMessage;
1359 
1360 	if (pm8001_mpi_msg_free_get(circularQ, pm8001_ha->iomb_size,
1361 		&pMessage) < 0) {
1362 		PM8001_IO_DBG(pm8001_ha,
1363 			pm8001_printk("No free mpi buffer\n"));
1364 		return -ENOMEM;
1365 	}
1366 
1367 	if (nb > (pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr)))
1368 		nb = pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr);
1369 	memcpy(pMessage, payload, nb);
1370 	if (nb + sizeof(struct mpi_msg_hdr) < pm8001_ha->iomb_size)
1371 		memset(pMessage + nb, 0, pm8001_ha->iomb_size -
1372 				(nb + sizeof(struct mpi_msg_hdr)));
1373 
1374 	/*Build the header*/
1375 	Header = ((1 << 31) | (hpriority << 30) | ((bc & 0x1f) << 24)
1376 		| ((responseQueue & 0x3F) << 16)
1377 		| ((category & 0xF) << 12) | (opCode & 0xFFF));
1378 
1379 	pm8001_write_32((pMessage - 4), 0, cpu_to_le32(Header));
1380 	/*Update the PI to the firmware*/
1381 	pm8001_cw32(pm8001_ha, circularQ->pi_pci_bar,
1382 		circularQ->pi_offset, circularQ->producer_idx);
1383 	PM8001_DEVIO_DBG(pm8001_ha,
1384 		pm8001_printk("INB Q %x OPCODE:%x , UPDATED PI=%d CI=%d\n",
1385 			responseQueue, opCode, circularQ->producer_idx,
1386 			circularQ->consumer_index));
1387 	return 0;
1388 }
1389 
1390 u32 pm8001_mpi_msg_free_set(struct pm8001_hba_info *pm8001_ha, void *pMsg,
1391 			    struct outbound_queue_table *circularQ, u8 bc)
1392 {
1393 	u32 producer_index;
1394 	struct mpi_msg_hdr *msgHeader;
1395 	struct mpi_msg_hdr *pOutBoundMsgHeader;
1396 
1397 	msgHeader = (struct mpi_msg_hdr *)(pMsg - sizeof(struct mpi_msg_hdr));
1398 	pOutBoundMsgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt +
1399 				circularQ->consumer_idx * pm8001_ha->iomb_size);
1400 	if (pOutBoundMsgHeader != msgHeader) {
1401 		PM8001_FAIL_DBG(pm8001_ha,
1402 			pm8001_printk("consumer_idx = %d msgHeader = %p\n",
1403 			circularQ->consumer_idx, msgHeader));
1404 
1405 		/* Update the producer index from SPC */
1406 		producer_index = pm8001_read_32(circularQ->pi_virt);
1407 		circularQ->producer_index = cpu_to_le32(producer_index);
1408 		PM8001_FAIL_DBG(pm8001_ha,
1409 			pm8001_printk("consumer_idx = %d producer_index = %d"
1410 			"msgHeader = %p\n", circularQ->consumer_idx,
1411 			circularQ->producer_index, msgHeader));
1412 		return 0;
1413 	}
1414 	/* free the circular queue buffer elements associated with the message*/
1415 	circularQ->consumer_idx = (circularQ->consumer_idx + bc)
1416 				% PM8001_MPI_QUEUE;
1417 	/* update the CI of outbound queue */
1418 	pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar, circularQ->ci_offset,
1419 		circularQ->consumer_idx);
1420 	/* Update the producer index from SPC*/
1421 	producer_index = pm8001_read_32(circularQ->pi_virt);
1422 	circularQ->producer_index = cpu_to_le32(producer_index);
1423 	PM8001_IO_DBG(pm8001_ha,
1424 		pm8001_printk(" CI=%d PI=%d\n", circularQ->consumer_idx,
1425 		circularQ->producer_index));
1426 	return 0;
1427 }
1428 
1429 /**
1430  * pm8001_mpi_msg_consume- get the MPI message from outbound queue
1431  * message table.
1432  * @pm8001_ha: our hba card information
1433  * @circularQ: the outbound queue  table.
1434  * @messagePtr1: the message contents of this outbound message.
1435  * @pBC: the message size.
1436  */
1437 u32 pm8001_mpi_msg_consume(struct pm8001_hba_info *pm8001_ha,
1438 			   struct outbound_queue_table *circularQ,
1439 			   void **messagePtr1, u8 *pBC)
1440 {
1441 	struct mpi_msg_hdr	*msgHeader;
1442 	__le32	msgHeader_tmp;
1443 	u32 header_tmp;
1444 	do {
1445 		/* If there are not-yet-delivered messages ... */
1446 		if (le32_to_cpu(circularQ->producer_index)
1447 			!= circularQ->consumer_idx) {
1448 			/*Get the pointer to the circular queue buffer element*/
1449 			msgHeader = (struct mpi_msg_hdr *)
1450 				(circularQ->base_virt +
1451 				circularQ->consumer_idx * pm8001_ha->iomb_size);
1452 			/* read header */
1453 			header_tmp = pm8001_read_32(msgHeader);
1454 			msgHeader_tmp = cpu_to_le32(header_tmp);
1455 			PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
1456 				"outbound opcode msgheader:%x ci=%d pi=%d\n",
1457 				msgHeader_tmp, circularQ->consumer_idx,
1458 				circularQ->producer_index));
1459 			if (0 != (le32_to_cpu(msgHeader_tmp) & 0x80000000)) {
1460 				if (OPC_OUB_SKIP_ENTRY !=
1461 					(le32_to_cpu(msgHeader_tmp) & 0xfff)) {
1462 					*messagePtr1 =
1463 						((u8 *)msgHeader) +
1464 						sizeof(struct mpi_msg_hdr);
1465 					*pBC = (u8)((le32_to_cpu(msgHeader_tmp)
1466 						>> 24) & 0x1f);
1467 					PM8001_IO_DBG(pm8001_ha,
1468 						pm8001_printk(": CI=%d PI=%d "
1469 						"msgHeader=%x\n",
1470 						circularQ->consumer_idx,
1471 						circularQ->producer_index,
1472 						msgHeader_tmp));
1473 					return MPI_IO_STATUS_SUCCESS;
1474 				} else {
1475 					circularQ->consumer_idx =
1476 						(circularQ->consumer_idx +
1477 						((le32_to_cpu(msgHeader_tmp)
1478 						 >> 24) & 0x1f))
1479 							% PM8001_MPI_QUEUE;
1480 					msgHeader_tmp = 0;
1481 					pm8001_write_32(msgHeader, 0, 0);
1482 					/* update the CI of outbound queue */
1483 					pm8001_cw32(pm8001_ha,
1484 						circularQ->ci_pci_bar,
1485 						circularQ->ci_offset,
1486 						circularQ->consumer_idx);
1487 				}
1488 			} else {
1489 				circularQ->consumer_idx =
1490 					(circularQ->consumer_idx +
1491 					((le32_to_cpu(msgHeader_tmp) >> 24) &
1492 					0x1f)) % PM8001_MPI_QUEUE;
1493 				msgHeader_tmp = 0;
1494 				pm8001_write_32(msgHeader, 0, 0);
1495 				/* update the CI of outbound queue */
1496 				pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar,
1497 					circularQ->ci_offset,
1498 					circularQ->consumer_idx);
1499 				return MPI_IO_STATUS_FAIL;
1500 			}
1501 		} else {
1502 			u32 producer_index;
1503 			void *pi_virt = circularQ->pi_virt;
1504 			/* spurious interrupt during setup if
1505 			 * kexec-ing and driver doing a doorbell access
1506 			 * with the pre-kexec oq interrupt setup
1507 			 */
1508 			if (!pi_virt)
1509 				break;
1510 			/* Update the producer index from SPC */
1511 			producer_index = pm8001_read_32(pi_virt);
1512 			circularQ->producer_index = cpu_to_le32(producer_index);
1513 		}
1514 	} while (le32_to_cpu(circularQ->producer_index) !=
1515 		circularQ->consumer_idx);
1516 	/* while we don't have any more not-yet-delivered message */
1517 	/* report empty */
1518 	return MPI_IO_STATUS_BUSY;
1519 }
1520 
1521 void pm8001_work_fn(struct work_struct *work)
1522 {
1523 	struct pm8001_work *pw = container_of(work, struct pm8001_work, work);
1524 	struct pm8001_device *pm8001_dev;
1525 	struct domain_device *dev;
1526 
1527 	/*
1528 	 * So far, all users of this stash an associated structure here.
1529 	 * If we get here, and this pointer is null, then the action
1530 	 * was cancelled. This nullification happens when the device
1531 	 * goes away.
1532 	 */
1533 	pm8001_dev = pw->data; /* Most stash device structure */
1534 	if ((pm8001_dev == NULL)
1535 	 || ((pw->handler != IO_XFER_ERROR_BREAK)
1536 	  && (pm8001_dev->dev_type == SAS_PHY_UNUSED))) {
1537 		kfree(pw);
1538 		return;
1539 	}
1540 
1541 	switch (pw->handler) {
1542 	case IO_XFER_ERROR_BREAK:
1543 	{	/* This one stashes the sas_task instead */
1544 		struct sas_task *t = (struct sas_task *)pm8001_dev;
1545 		u32 tag;
1546 		struct pm8001_ccb_info *ccb;
1547 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1548 		unsigned long flags, flags1;
1549 		struct task_status_struct *ts;
1550 		int i;
1551 
1552 		if (pm8001_query_task(t) == TMF_RESP_FUNC_SUCC)
1553 			break; /* Task still on lu */
1554 		spin_lock_irqsave(&pm8001_ha->lock, flags);
1555 
1556 		spin_lock_irqsave(&t->task_state_lock, flags1);
1557 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
1558 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1559 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1560 			break; /* Task got completed by another */
1561 		}
1562 		spin_unlock_irqrestore(&t->task_state_lock, flags1);
1563 
1564 		/* Search for a possible ccb that matches the task */
1565 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1566 			ccb = &pm8001_ha->ccb_info[i];
1567 			tag = ccb->ccb_tag;
1568 			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
1569 				break;
1570 		}
1571 		if (!ccb) {
1572 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1573 			break; /* Task got freed by another */
1574 		}
1575 		ts = &t->task_status;
1576 		ts->resp = SAS_TASK_COMPLETE;
1577 		/* Force the midlayer to retry */
1578 		ts->stat = SAS_QUEUE_FULL;
1579 		pm8001_dev = ccb->device;
1580 		if (pm8001_dev)
1581 			pm8001_dev->running_req--;
1582 		spin_lock_irqsave(&t->task_state_lock, flags1);
1583 		t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
1584 		t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
1585 		t->task_state_flags |= SAS_TASK_STATE_DONE;
1586 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
1587 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1588 			PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p"
1589 				" done with event 0x%x resp 0x%x stat 0x%x but"
1590 				" aborted by upper layer!\n",
1591 				t, pw->handler, ts->resp, ts->stat));
1592 			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
1593 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1594 		} else {
1595 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1596 			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
1597 			mb();/* in order to force CPU ordering */
1598 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1599 			t->task_done(t);
1600 		}
1601 	}	break;
1602 	case IO_XFER_OPEN_RETRY_TIMEOUT:
1603 	{	/* This one stashes the sas_task instead */
1604 		struct sas_task *t = (struct sas_task *)pm8001_dev;
1605 		u32 tag;
1606 		struct pm8001_ccb_info *ccb;
1607 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
1608 		unsigned long flags, flags1;
1609 		int i, ret = 0;
1610 
1611 		PM8001_IO_DBG(pm8001_ha,
1612 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
1613 
1614 		ret = pm8001_query_task(t);
1615 
1616 		PM8001_IO_DBG(pm8001_ha,
1617 			switch (ret) {
1618 			case TMF_RESP_FUNC_SUCC:
1619 				pm8001_printk("...Task on lu\n");
1620 				break;
1621 
1622 			case TMF_RESP_FUNC_COMPLETE:
1623 				pm8001_printk("...Task NOT on lu\n");
1624 				break;
1625 
1626 			default:
1627 				PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
1628 					"...query task failed!!!\n"));
1629 				break;
1630 			});
1631 
1632 		spin_lock_irqsave(&pm8001_ha->lock, flags);
1633 
1634 		spin_lock_irqsave(&t->task_state_lock, flags1);
1635 
1636 		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
1637 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
1638 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1639 			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
1640 				(void)pm8001_abort_task(t);
1641 			break; /* Task got completed by another */
1642 		}
1643 
1644 		spin_unlock_irqrestore(&t->task_state_lock, flags1);
1645 
1646 		/* Search for a possible ccb that matches the task */
1647 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
1648 			ccb = &pm8001_ha->ccb_info[i];
1649 			tag = ccb->ccb_tag;
1650 			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
1651 				break;
1652 		}
1653 		if (!ccb) {
1654 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1655 			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
1656 				(void)pm8001_abort_task(t);
1657 			break; /* Task got freed by another */
1658 		}
1659 
1660 		pm8001_dev = ccb->device;
1661 		dev = pm8001_dev->sas_device;
1662 
1663 		switch (ret) {
1664 		case TMF_RESP_FUNC_SUCC: /* task on lu */
1665 			ccb->open_retry = 1; /* Snub completion */
1666 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1667 			ret = pm8001_abort_task(t);
1668 			ccb->open_retry = 0;
1669 			switch (ret) {
1670 			case TMF_RESP_FUNC_SUCC:
1671 			case TMF_RESP_FUNC_COMPLETE:
1672 				break;
1673 			default: /* device misbehavior */
1674 				ret = TMF_RESP_FUNC_FAILED;
1675 				PM8001_IO_DBG(pm8001_ha,
1676 					pm8001_printk("...Reset phy\n"));
1677 				pm8001_I_T_nexus_reset(dev);
1678 				break;
1679 			}
1680 			break;
1681 
1682 		case TMF_RESP_FUNC_COMPLETE: /* task not on lu */
1683 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1684 			/* Do we need to abort the task locally? */
1685 			break;
1686 
1687 		default: /* device misbehavior */
1688 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
1689 			ret = TMF_RESP_FUNC_FAILED;
1690 			PM8001_IO_DBG(pm8001_ha,
1691 				pm8001_printk("...Reset phy\n"));
1692 			pm8001_I_T_nexus_reset(dev);
1693 		}
1694 
1695 		if (ret == TMF_RESP_FUNC_FAILED)
1696 			t = NULL;
1697 		pm8001_open_reject_retry(pm8001_ha, t, pm8001_dev);
1698 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("...Complete\n"));
1699 	}	break;
1700 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
1701 		dev = pm8001_dev->sas_device;
1702 		pm8001_I_T_nexus_event_handler(dev);
1703 		break;
1704 	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
1705 		dev = pm8001_dev->sas_device;
1706 		pm8001_I_T_nexus_reset(dev);
1707 		break;
1708 	case IO_DS_IN_ERROR:
1709 		dev = pm8001_dev->sas_device;
1710 		pm8001_I_T_nexus_reset(dev);
1711 		break;
1712 	case IO_DS_NON_OPERATIONAL:
1713 		dev = pm8001_dev->sas_device;
1714 		pm8001_I_T_nexus_reset(dev);
1715 		break;
1716 	}
1717 	kfree(pw);
1718 }
1719 
1720 int pm8001_handle_event(struct pm8001_hba_info *pm8001_ha, void *data,
1721 			       int handler)
1722 {
1723 	struct pm8001_work *pw;
1724 	int ret = 0;
1725 
1726 	pw = kmalloc(sizeof(struct pm8001_work), GFP_ATOMIC);
1727 	if (pw) {
1728 		pw->pm8001_ha = pm8001_ha;
1729 		pw->data = data;
1730 		pw->handler = handler;
1731 		INIT_WORK(&pw->work, pm8001_work_fn);
1732 		queue_work(pm8001_wq, &pw->work);
1733 	} else
1734 		ret = -ENOMEM;
1735 
1736 	return ret;
1737 }
1738 
1739 static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
1740 		struct pm8001_device *pm8001_ha_dev)
1741 {
1742 	int res;
1743 	u32 ccb_tag;
1744 	struct pm8001_ccb_info *ccb;
1745 	struct sas_task *task = NULL;
1746 	struct task_abort_req task_abort;
1747 	struct inbound_queue_table *circularQ;
1748 	u32 opc = OPC_INB_SATA_ABORT;
1749 	int ret;
1750 
1751 	if (!pm8001_ha_dev) {
1752 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("dev is null\n"));
1753 		return;
1754 	}
1755 
1756 	task = sas_alloc_slow_task(GFP_ATOMIC);
1757 
1758 	if (!task) {
1759 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("cannot "
1760 						"allocate task\n"));
1761 		return;
1762 	}
1763 
1764 	task->task_done = pm8001_task_done;
1765 
1766 	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
1767 	if (res)
1768 		return;
1769 
1770 	ccb = &pm8001_ha->ccb_info[ccb_tag];
1771 	ccb->device = pm8001_ha_dev;
1772 	ccb->ccb_tag = ccb_tag;
1773 	ccb->task = task;
1774 
1775 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
1776 
1777 	memset(&task_abort, 0, sizeof(task_abort));
1778 	task_abort.abort_all = cpu_to_le32(1);
1779 	task_abort.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
1780 	task_abort.tag = cpu_to_le32(ccb_tag);
1781 
1782 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
1783 			sizeof(task_abort), 0);
1784 	if (ret)
1785 		pm8001_tag_free(pm8001_ha, ccb_tag);
1786 
1787 }
1788 
1789 static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
1790 		struct pm8001_device *pm8001_ha_dev)
1791 {
1792 	struct sata_start_req sata_cmd;
1793 	int res;
1794 	u32 ccb_tag;
1795 	struct pm8001_ccb_info *ccb;
1796 	struct sas_task *task = NULL;
1797 	struct host_to_dev_fis fis;
1798 	struct domain_device *dev;
1799 	struct inbound_queue_table *circularQ;
1800 	u32 opc = OPC_INB_SATA_HOST_OPSTART;
1801 
1802 	task = sas_alloc_slow_task(GFP_ATOMIC);
1803 
1804 	if (!task) {
1805 		PM8001_FAIL_DBG(pm8001_ha,
1806 			pm8001_printk("cannot allocate task !!!\n"));
1807 		return;
1808 	}
1809 	task->task_done = pm8001_task_done;
1810 
1811 	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
1812 	if (res) {
1813 		sas_free_task(task);
1814 		PM8001_FAIL_DBG(pm8001_ha,
1815 			pm8001_printk("cannot allocate tag !!!\n"));
1816 		return;
1817 	}
1818 
1819 	/* allocate domain device by ourselves as libsas
1820 	 * is not going to provide any
1821 	*/
1822 	dev = kzalloc(sizeof(struct domain_device), GFP_ATOMIC);
1823 	if (!dev) {
1824 		sas_free_task(task);
1825 		pm8001_tag_free(pm8001_ha, ccb_tag);
1826 		PM8001_FAIL_DBG(pm8001_ha,
1827 			pm8001_printk("Domain device cannot be allocated\n"));
1828 		return;
1829 	}
1830 	task->dev = dev;
1831 	task->dev->lldd_dev = pm8001_ha_dev;
1832 
1833 	ccb = &pm8001_ha->ccb_info[ccb_tag];
1834 	ccb->device = pm8001_ha_dev;
1835 	ccb->ccb_tag = ccb_tag;
1836 	ccb->task = task;
1837 	pm8001_ha_dev->id |= NCQ_READ_LOG_FLAG;
1838 	pm8001_ha_dev->id |= NCQ_2ND_RLE_FLAG;
1839 
1840 	memset(&sata_cmd, 0, sizeof(sata_cmd));
1841 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
1842 
1843 	/* construct read log FIS */
1844 	memset(&fis, 0, sizeof(struct host_to_dev_fis));
1845 	fis.fis_type = 0x27;
1846 	fis.flags = 0x80;
1847 	fis.command = ATA_CMD_READ_LOG_EXT;
1848 	fis.lbal = 0x10;
1849 	fis.sector_count = 0x1;
1850 
1851 	sata_cmd.tag = cpu_to_le32(ccb_tag);
1852 	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
1853 	sata_cmd.ncqtag_atap_dir_m |= ((0x1 << 7) | (0x5 << 9));
1854 	memcpy(&sata_cmd.sata_fis, &fis, sizeof(struct host_to_dev_fis));
1855 
1856 	res = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
1857 			sizeof(sata_cmd), 0);
1858 	if (res) {
1859 		sas_free_task(task);
1860 		pm8001_tag_free(pm8001_ha, ccb_tag);
1861 		kfree(dev);
1862 	}
1863 }
1864 
1865 /**
1866  * mpi_ssp_completion- process the event that FW response to the SSP request.
1867  * @pm8001_ha: our hba card information
1868  * @piomb: the message contents of this outbound message.
1869  *
1870  * When FW has completed a ssp request for example a IO request, after it has
1871  * filled the SG data with the data, it will trigger this event represent
1872  * that he has finished the job,please check the coresponding buffer.
1873  * So we will tell the caller who maybe waiting the result to tell upper layer
1874  * that the task has been finished.
1875  */
1876 static void
1877 mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
1878 {
1879 	struct sas_task *t;
1880 	struct pm8001_ccb_info *ccb;
1881 	unsigned long flags;
1882 	u32 status;
1883 	u32 param;
1884 	u32 tag;
1885 	struct ssp_completion_resp *psspPayload;
1886 	struct task_status_struct *ts;
1887 	struct ssp_response_iu *iu;
1888 	struct pm8001_device *pm8001_dev;
1889 	psspPayload = (struct ssp_completion_resp *)(piomb + 4);
1890 	status = le32_to_cpu(psspPayload->status);
1891 	tag = le32_to_cpu(psspPayload->tag);
1892 	ccb = &pm8001_ha->ccb_info[tag];
1893 	if ((status == IO_ABORTED) && ccb->open_retry) {
1894 		/* Being completed by another */
1895 		ccb->open_retry = 0;
1896 		return;
1897 	}
1898 	pm8001_dev = ccb->device;
1899 	param = le32_to_cpu(psspPayload->param);
1900 
1901 	t = ccb->task;
1902 
1903 	if (status && status != IO_UNDERFLOW)
1904 		PM8001_FAIL_DBG(pm8001_ha,
1905 			pm8001_printk("sas IO status 0x%x\n", status));
1906 	if (unlikely(!t || !t->lldd_task || !t->dev))
1907 		return;
1908 	ts = &t->task_status;
1909 	/* Print sas address of IO failed device */
1910 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
1911 		(status != IO_UNDERFLOW))
1912 		PM8001_FAIL_DBG(pm8001_ha,
1913 			pm8001_printk("SAS Address of IO Failure Drive:"
1914 			"%016llx", SAS_ADDR(t->dev->sas_addr)));
1915 
1916 	if (status)
1917 		PM8001_IOERR_DBG(pm8001_ha, pm8001_printk(
1918 			"status:0x%x, tag:0x%x, task:0x%p\n",
1919 			status, tag, t));
1920 
1921 	switch (status) {
1922 	case IO_SUCCESS:
1923 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS"
1924 			",param = %d\n", param));
1925 		if (param == 0) {
1926 			ts->resp = SAS_TASK_COMPLETE;
1927 			ts->stat = SAM_STAT_GOOD;
1928 		} else {
1929 			ts->resp = SAS_TASK_COMPLETE;
1930 			ts->stat = SAS_PROTO_RESPONSE;
1931 			ts->residual = param;
1932 			iu = &psspPayload->ssp_resp_iu;
1933 			sas_ssp_task_response(pm8001_ha->dev, t, iu);
1934 		}
1935 		if (pm8001_dev)
1936 			pm8001_dev->running_req--;
1937 		break;
1938 	case IO_ABORTED:
1939 		PM8001_IO_DBG(pm8001_ha,
1940 			pm8001_printk("IO_ABORTED IOMB Tag\n"));
1941 		ts->resp = SAS_TASK_COMPLETE;
1942 		ts->stat = SAS_ABORTED_TASK;
1943 		break;
1944 	case IO_UNDERFLOW:
1945 		/* SSP Completion with error */
1946 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW"
1947 			",param = %d\n", param));
1948 		ts->resp = SAS_TASK_COMPLETE;
1949 		ts->stat = SAS_DATA_UNDERRUN;
1950 		ts->residual = param;
1951 		if (pm8001_dev)
1952 			pm8001_dev->running_req--;
1953 		break;
1954 	case IO_NO_DEVICE:
1955 		PM8001_IO_DBG(pm8001_ha,
1956 			pm8001_printk("IO_NO_DEVICE\n"));
1957 		ts->resp = SAS_TASK_UNDELIVERED;
1958 		ts->stat = SAS_PHY_DOWN;
1959 		break;
1960 	case IO_XFER_ERROR_BREAK:
1961 		PM8001_IO_DBG(pm8001_ha,
1962 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
1963 		ts->resp = SAS_TASK_COMPLETE;
1964 		ts->stat = SAS_OPEN_REJECT;
1965 		/* Force the midlayer to retry */
1966 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1967 		break;
1968 	case IO_XFER_ERROR_PHY_NOT_READY:
1969 		PM8001_IO_DBG(pm8001_ha,
1970 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
1971 		ts->resp = SAS_TASK_COMPLETE;
1972 		ts->stat = SAS_OPEN_REJECT;
1973 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1974 		break;
1975 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
1976 		PM8001_IO_DBG(pm8001_ha,
1977 		pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n"));
1978 		ts->resp = SAS_TASK_COMPLETE;
1979 		ts->stat = SAS_OPEN_REJECT;
1980 		ts->open_rej_reason = SAS_OREJ_EPROTO;
1981 		break;
1982 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
1983 		PM8001_IO_DBG(pm8001_ha,
1984 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
1985 		ts->resp = SAS_TASK_COMPLETE;
1986 		ts->stat = SAS_OPEN_REJECT;
1987 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1988 		break;
1989 	case IO_OPEN_CNX_ERROR_BREAK:
1990 		PM8001_IO_DBG(pm8001_ha,
1991 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
1992 		ts->resp = SAS_TASK_COMPLETE;
1993 		ts->stat = SAS_OPEN_REJECT;
1994 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1995 		break;
1996 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
1997 		PM8001_IO_DBG(pm8001_ha,
1998 			pm8001_printk("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_IO_DBG(pm8001_ha,
2009 			pm8001_printk("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_IO_DBG(pm8001_ha,
2016 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2017 			"NOT_SUPPORTED\n"));
2018 		ts->resp = SAS_TASK_COMPLETE;
2019 		ts->stat = SAS_OPEN_REJECT;
2020 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2021 		break;
2022 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2023 		PM8001_IO_DBG(pm8001_ha,
2024 			pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2025 		ts->resp = SAS_TASK_UNDELIVERED;
2026 		ts->stat = SAS_OPEN_REJECT;
2027 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2028 		break;
2029 	case IO_XFER_ERROR_NAK_RECEIVED:
2030 		PM8001_IO_DBG(pm8001_ha,
2031 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2032 		ts->resp = SAS_TASK_COMPLETE;
2033 		ts->stat = SAS_OPEN_REJECT;
2034 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2035 		break;
2036 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2037 		PM8001_IO_DBG(pm8001_ha,
2038 			pm8001_printk("IO_XFER_ERROR_ACK_NAK_TIMEOUT\n"));
2039 		ts->resp = SAS_TASK_COMPLETE;
2040 		ts->stat = SAS_NAK_R_ERR;
2041 		break;
2042 	case IO_XFER_ERROR_DMA:
2043 		PM8001_IO_DBG(pm8001_ha,
2044 		pm8001_printk("IO_XFER_ERROR_DMA\n"));
2045 		ts->resp = SAS_TASK_COMPLETE;
2046 		ts->stat = SAS_OPEN_REJECT;
2047 		break;
2048 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2049 		PM8001_IO_DBG(pm8001_ha,
2050 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2051 		ts->resp = SAS_TASK_COMPLETE;
2052 		ts->stat = SAS_OPEN_REJECT;
2053 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2054 		break;
2055 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2056 		PM8001_IO_DBG(pm8001_ha,
2057 			pm8001_printk("IO_XFER_ERROR_OFFSET_MISMATCH\n"));
2058 		ts->resp = SAS_TASK_COMPLETE;
2059 		ts->stat = SAS_OPEN_REJECT;
2060 		break;
2061 	case IO_PORT_IN_RESET:
2062 		PM8001_IO_DBG(pm8001_ha,
2063 			pm8001_printk("IO_PORT_IN_RESET\n"));
2064 		ts->resp = SAS_TASK_COMPLETE;
2065 		ts->stat = SAS_OPEN_REJECT;
2066 		break;
2067 	case IO_DS_NON_OPERATIONAL:
2068 		PM8001_IO_DBG(pm8001_ha,
2069 			pm8001_printk("IO_DS_NON_OPERATIONAL\n"));
2070 		ts->resp = SAS_TASK_COMPLETE;
2071 		ts->stat = SAS_OPEN_REJECT;
2072 		if (!t->uldd_task)
2073 			pm8001_handle_event(pm8001_ha,
2074 				pm8001_dev,
2075 				IO_DS_NON_OPERATIONAL);
2076 		break;
2077 	case IO_DS_IN_RECOVERY:
2078 		PM8001_IO_DBG(pm8001_ha,
2079 			pm8001_printk("IO_DS_IN_RECOVERY\n"));
2080 		ts->resp = SAS_TASK_COMPLETE;
2081 		ts->stat = SAS_OPEN_REJECT;
2082 		break;
2083 	case IO_TM_TAG_NOT_FOUND:
2084 		PM8001_IO_DBG(pm8001_ha,
2085 			pm8001_printk("IO_TM_TAG_NOT_FOUND\n"));
2086 		ts->resp = SAS_TASK_COMPLETE;
2087 		ts->stat = SAS_OPEN_REJECT;
2088 		break;
2089 	case IO_SSP_EXT_IU_ZERO_LEN_ERROR:
2090 		PM8001_IO_DBG(pm8001_ha,
2091 			pm8001_printk("IO_SSP_EXT_IU_ZERO_LEN_ERROR\n"));
2092 		ts->resp = SAS_TASK_COMPLETE;
2093 		ts->stat = SAS_OPEN_REJECT;
2094 		break;
2095 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2096 		PM8001_IO_DBG(pm8001_ha,
2097 			pm8001_printk("IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n"));
2098 		ts->resp = SAS_TASK_COMPLETE;
2099 		ts->stat = SAS_OPEN_REJECT;
2100 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2101 		break;
2102 	default:
2103 		PM8001_DEVIO_DBG(pm8001_ha,
2104 			pm8001_printk("Unknown status 0x%x\n", status));
2105 		/* not allowed case. Therefore, return failed status */
2106 		ts->resp = SAS_TASK_COMPLETE;
2107 		ts->stat = SAS_OPEN_REJECT;
2108 		break;
2109 	}
2110 	PM8001_IO_DBG(pm8001_ha,
2111 		pm8001_printk("scsi_status = %x\n ",
2112 		psspPayload->ssp_resp_iu.status));
2113 	spin_lock_irqsave(&t->task_state_lock, flags);
2114 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2115 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2116 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2117 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2118 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2119 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p done with"
2120 			" io_status 0x%x resp 0x%x "
2121 			"stat 0x%x but aborted by upper layer!\n",
2122 			t, status, ts->resp, ts->stat));
2123 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2124 	} else {
2125 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2126 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2127 		mb();/* in order to force CPU ordering */
2128 		t->task_done(t);
2129 	}
2130 }
2131 
2132 /*See the comments for mpi_ssp_completion */
2133 static void mpi_ssp_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
2134 {
2135 	struct sas_task *t;
2136 	unsigned long flags;
2137 	struct task_status_struct *ts;
2138 	struct pm8001_ccb_info *ccb;
2139 	struct pm8001_device *pm8001_dev;
2140 	struct ssp_event_resp *psspPayload =
2141 		(struct ssp_event_resp *)(piomb + 4);
2142 	u32 event = le32_to_cpu(psspPayload->event);
2143 	u32 tag = le32_to_cpu(psspPayload->tag);
2144 	u32 port_id = le32_to_cpu(psspPayload->port_id);
2145 	u32 dev_id = le32_to_cpu(psspPayload->device_id);
2146 
2147 	ccb = &pm8001_ha->ccb_info[tag];
2148 	t = ccb->task;
2149 	pm8001_dev = ccb->device;
2150 	if (event)
2151 		PM8001_FAIL_DBG(pm8001_ha,
2152 			pm8001_printk("sas IO status 0x%x\n", event));
2153 	if (unlikely(!t || !t->lldd_task || !t->dev))
2154 		return;
2155 	ts = &t->task_status;
2156 	PM8001_DEVIO_DBG(pm8001_ha,
2157 		pm8001_printk("port_id = %x,device_id = %x\n",
2158 		port_id, dev_id));
2159 	switch (event) {
2160 	case IO_OVERFLOW:
2161 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW\n");)
2162 		ts->resp = SAS_TASK_COMPLETE;
2163 		ts->stat = SAS_DATA_OVERRUN;
2164 		ts->residual = 0;
2165 		if (pm8001_dev)
2166 			pm8001_dev->running_req--;
2167 		break;
2168 	case IO_XFER_ERROR_BREAK:
2169 		PM8001_IO_DBG(pm8001_ha,
2170 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
2171 		pm8001_handle_event(pm8001_ha, t, IO_XFER_ERROR_BREAK);
2172 		return;
2173 	case IO_XFER_ERROR_PHY_NOT_READY:
2174 		PM8001_IO_DBG(pm8001_ha,
2175 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
2176 		ts->resp = SAS_TASK_COMPLETE;
2177 		ts->stat = SAS_OPEN_REJECT;
2178 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2179 		break;
2180 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2181 		PM8001_IO_DBG(pm8001_ha,
2182 			pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT"
2183 			"_SUPPORTED\n"));
2184 		ts->resp = SAS_TASK_COMPLETE;
2185 		ts->stat = SAS_OPEN_REJECT;
2186 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2187 		break;
2188 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2189 		PM8001_IO_DBG(pm8001_ha,
2190 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
2191 		ts->resp = SAS_TASK_COMPLETE;
2192 		ts->stat = SAS_OPEN_REJECT;
2193 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2194 		break;
2195 	case IO_OPEN_CNX_ERROR_BREAK:
2196 		PM8001_IO_DBG(pm8001_ha,
2197 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
2198 		ts->resp = SAS_TASK_COMPLETE;
2199 		ts->stat = SAS_OPEN_REJECT;
2200 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2201 		break;
2202 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2203 		PM8001_IO_DBG(pm8001_ha,
2204 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
2205 		ts->resp = SAS_TASK_COMPLETE;
2206 		ts->stat = SAS_OPEN_REJECT;
2207 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2208 		if (!t->uldd_task)
2209 			pm8001_handle_event(pm8001_ha,
2210 				pm8001_dev,
2211 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2212 		break;
2213 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2214 		PM8001_IO_DBG(pm8001_ha,
2215 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
2216 		ts->resp = SAS_TASK_COMPLETE;
2217 		ts->stat = SAS_OPEN_REJECT;
2218 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2219 		break;
2220 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2221 		PM8001_IO_DBG(pm8001_ha,
2222 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2223 			"NOT_SUPPORTED\n"));
2224 		ts->resp = SAS_TASK_COMPLETE;
2225 		ts->stat = SAS_OPEN_REJECT;
2226 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2227 		break;
2228 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2229 		PM8001_IO_DBG(pm8001_ha,
2230 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2231 		ts->resp = SAS_TASK_COMPLETE;
2232 		ts->stat = SAS_OPEN_REJECT;
2233 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2234 		break;
2235 	case IO_XFER_ERROR_NAK_RECEIVED:
2236 		PM8001_IO_DBG(pm8001_ha,
2237 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2238 		ts->resp = SAS_TASK_COMPLETE;
2239 		ts->stat = SAS_OPEN_REJECT;
2240 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2241 		break;
2242 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2243 		PM8001_IO_DBG(pm8001_ha,
2244 			pm8001_printk("IO_XFER_ERROR_ACK_NAK_TIMEOUT\n"));
2245 		ts->resp = SAS_TASK_COMPLETE;
2246 		ts->stat = SAS_NAK_R_ERR;
2247 		break;
2248 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2249 		PM8001_IO_DBG(pm8001_ha,
2250 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2251 		pm8001_handle_event(pm8001_ha, t, IO_XFER_OPEN_RETRY_TIMEOUT);
2252 		return;
2253 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2254 		PM8001_IO_DBG(pm8001_ha,
2255 			pm8001_printk("IO_XFER_ERROR_UNEXPECTED_PHASE\n"));
2256 		ts->resp = SAS_TASK_COMPLETE;
2257 		ts->stat = SAS_DATA_OVERRUN;
2258 		break;
2259 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2260 		PM8001_IO_DBG(pm8001_ha,
2261 			pm8001_printk("IO_XFER_ERROR_XFER_RDY_OVERRUN\n"));
2262 		ts->resp = SAS_TASK_COMPLETE;
2263 		ts->stat = SAS_DATA_OVERRUN;
2264 		break;
2265 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2266 		PM8001_IO_DBG(pm8001_ha,
2267 		       pm8001_printk("IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n"));
2268 		ts->resp = SAS_TASK_COMPLETE;
2269 		ts->stat = SAS_DATA_OVERRUN;
2270 		break;
2271 	case IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT:
2272 		PM8001_IO_DBG(pm8001_ha,
2273 		pm8001_printk("IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT\n"));
2274 		ts->resp = SAS_TASK_COMPLETE;
2275 		ts->stat = SAS_DATA_OVERRUN;
2276 		break;
2277 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2278 		PM8001_IO_DBG(pm8001_ha,
2279 			pm8001_printk("IO_XFER_ERROR_OFFSET_MISMATCH\n"));
2280 		ts->resp = SAS_TASK_COMPLETE;
2281 		ts->stat = SAS_DATA_OVERRUN;
2282 		break;
2283 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2284 		PM8001_IO_DBG(pm8001_ha,
2285 			pm8001_printk("IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n"));
2286 		ts->resp = SAS_TASK_COMPLETE;
2287 		ts->stat = SAS_DATA_OVERRUN;
2288 		break;
2289 	case IO_XFER_CMD_FRAME_ISSUED:
2290 		PM8001_IO_DBG(pm8001_ha,
2291 			pm8001_printk("  IO_XFER_CMD_FRAME_ISSUED\n"));
2292 		return;
2293 	default:
2294 		PM8001_DEVIO_DBG(pm8001_ha,
2295 			pm8001_printk("Unknown status 0x%x\n", event));
2296 		/* not allowed case. Therefore, return failed status */
2297 		ts->resp = SAS_TASK_COMPLETE;
2298 		ts->stat = SAS_DATA_OVERRUN;
2299 		break;
2300 	}
2301 	spin_lock_irqsave(&t->task_state_lock, flags);
2302 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2303 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2304 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2305 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2306 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2307 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p done with"
2308 			" event 0x%x resp 0x%x "
2309 			"stat 0x%x but aborted by upper layer!\n",
2310 			t, event, ts->resp, ts->stat));
2311 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2312 	} else {
2313 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2314 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2315 		mb();/* in order to force CPU ordering */
2316 		t->task_done(t);
2317 	}
2318 }
2319 
2320 /*See the comments for mpi_ssp_completion */
2321 static void
2322 mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2323 {
2324 	struct sas_task *t;
2325 	struct pm8001_ccb_info *ccb;
2326 	u32 param;
2327 	u32 status;
2328 	u32 tag;
2329 	int i, j;
2330 	u8 sata_addr_low[4];
2331 	u32 temp_sata_addr_low;
2332 	u8 sata_addr_hi[4];
2333 	u32 temp_sata_addr_hi;
2334 	struct sata_completion_resp *psataPayload;
2335 	struct task_status_struct *ts;
2336 	struct ata_task_resp *resp ;
2337 	u32 *sata_resp;
2338 	struct pm8001_device *pm8001_dev;
2339 	unsigned long flags;
2340 
2341 	psataPayload = (struct sata_completion_resp *)(piomb + 4);
2342 	status = le32_to_cpu(psataPayload->status);
2343 	tag = le32_to_cpu(psataPayload->tag);
2344 
2345 	if (!tag) {
2346 		PM8001_FAIL_DBG(pm8001_ha,
2347 			pm8001_printk("tag null\n"));
2348 		return;
2349 	}
2350 	ccb = &pm8001_ha->ccb_info[tag];
2351 	param = le32_to_cpu(psataPayload->param);
2352 	if (ccb) {
2353 		t = ccb->task;
2354 		pm8001_dev = ccb->device;
2355 	} else {
2356 		PM8001_FAIL_DBG(pm8001_ha,
2357 			pm8001_printk("ccb null\n"));
2358 		return;
2359 	}
2360 
2361 	if (t) {
2362 		if (t->dev && (t->dev->lldd_dev))
2363 			pm8001_dev = t->dev->lldd_dev;
2364 	} else {
2365 		PM8001_FAIL_DBG(pm8001_ha,
2366 			pm8001_printk("task null\n"));
2367 		return;
2368 	}
2369 
2370 	if ((pm8001_dev && !(pm8001_dev->id & NCQ_READ_LOG_FLAG))
2371 		&& unlikely(!t || !t->lldd_task || !t->dev)) {
2372 		PM8001_FAIL_DBG(pm8001_ha,
2373 			pm8001_printk("task or dev null\n"));
2374 		return;
2375 	}
2376 
2377 	ts = &t->task_status;
2378 	if (!ts) {
2379 		PM8001_FAIL_DBG(pm8001_ha,
2380 			pm8001_printk("ts null\n"));
2381 		return;
2382 	}
2383 
2384 	if (status)
2385 		PM8001_IOERR_DBG(pm8001_ha, pm8001_printk(
2386 			"status:0x%x, tag:0x%x, task::0x%p\n",
2387 			status, tag, t));
2388 
2389 	/* Print sas address of IO failed device */
2390 	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
2391 		(status != IO_UNDERFLOW)) {
2392 		if (!((t->dev->parent) &&
2393 			(dev_is_expander(t->dev->parent->dev_type)))) {
2394 			for (i = 0 , j = 4; j <= 7 && i <= 3; i++ , j++)
2395 				sata_addr_low[i] = pm8001_ha->sas_addr[j];
2396 			for (i = 0 , j = 0; j <= 3 && i <= 3; i++ , j++)
2397 				sata_addr_hi[i] = pm8001_ha->sas_addr[j];
2398 			memcpy(&temp_sata_addr_low, sata_addr_low,
2399 				sizeof(sata_addr_low));
2400 			memcpy(&temp_sata_addr_hi, sata_addr_hi,
2401 				sizeof(sata_addr_hi));
2402 			temp_sata_addr_hi = (((temp_sata_addr_hi >> 24) & 0xff)
2403 						|((temp_sata_addr_hi << 8) &
2404 						0xff0000) |
2405 						((temp_sata_addr_hi >> 8)
2406 						& 0xff00) |
2407 						((temp_sata_addr_hi << 24) &
2408 						0xff000000));
2409 			temp_sata_addr_low = ((((temp_sata_addr_low >> 24)
2410 						& 0xff) |
2411 						((temp_sata_addr_low << 8)
2412 						& 0xff0000) |
2413 						((temp_sata_addr_low >> 8)
2414 						& 0xff00) |
2415 						((temp_sata_addr_low << 24)
2416 						& 0xff000000)) +
2417 						pm8001_dev->attached_phy +
2418 						0x10);
2419 			PM8001_FAIL_DBG(pm8001_ha,
2420 				pm8001_printk("SAS Address of IO Failure Drive:"
2421 				"%08x%08x", temp_sata_addr_hi,
2422 					temp_sata_addr_low));
2423 		} else {
2424 			PM8001_FAIL_DBG(pm8001_ha,
2425 				pm8001_printk("SAS Address of IO Failure Drive:"
2426 				"%016llx", SAS_ADDR(t->dev->sas_addr)));
2427 		}
2428 	}
2429 	switch (status) {
2430 	case IO_SUCCESS:
2431 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS\n"));
2432 		if (param == 0) {
2433 			ts->resp = SAS_TASK_COMPLETE;
2434 			ts->stat = SAM_STAT_GOOD;
2435 			/* check if response is for SEND READ LOG */
2436 			if (pm8001_dev &&
2437 				(pm8001_dev->id & NCQ_READ_LOG_FLAG)) {
2438 				/* set new bit for abort_all */
2439 				pm8001_dev->id |= NCQ_ABORT_ALL_FLAG;
2440 				/* clear bit for read log */
2441 				pm8001_dev->id = pm8001_dev->id & 0x7FFFFFFF;
2442 				pm8001_send_abort_all(pm8001_ha, pm8001_dev);
2443 				/* Free the tag */
2444 				pm8001_tag_free(pm8001_ha, tag);
2445 				sas_free_task(t);
2446 				return;
2447 			}
2448 		} else {
2449 			u8 len;
2450 			ts->resp = SAS_TASK_COMPLETE;
2451 			ts->stat = SAS_PROTO_RESPONSE;
2452 			ts->residual = param;
2453 			PM8001_IO_DBG(pm8001_ha,
2454 				pm8001_printk("SAS_PROTO_RESPONSE len = %d\n",
2455 				param));
2456 			sata_resp = &psataPayload->sata_resp[0];
2457 			resp = (struct ata_task_resp *)ts->buf;
2458 			if (t->ata_task.dma_xfer == 0 &&
2459 			    t->data_dir == DMA_FROM_DEVICE) {
2460 				len = sizeof(struct pio_setup_fis);
2461 				PM8001_IO_DBG(pm8001_ha,
2462 				pm8001_printk("PIO read len = %d\n", len));
2463 			} else if (t->ata_task.use_ncq) {
2464 				len = sizeof(struct set_dev_bits_fis);
2465 				PM8001_IO_DBG(pm8001_ha,
2466 					pm8001_printk("FPDMA len = %d\n", len));
2467 			} else {
2468 				len = sizeof(struct dev_to_host_fis);
2469 				PM8001_IO_DBG(pm8001_ha,
2470 				pm8001_printk("other len = %d\n", len));
2471 			}
2472 			if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) {
2473 				resp->frame_len = len;
2474 				memcpy(&resp->ending_fis[0], sata_resp, len);
2475 				ts->buf_valid_size = sizeof(*resp);
2476 			} else
2477 				PM8001_IO_DBG(pm8001_ha,
2478 					pm8001_printk("response to large\n"));
2479 		}
2480 		if (pm8001_dev)
2481 			pm8001_dev->running_req--;
2482 		break;
2483 	case IO_ABORTED:
2484 		PM8001_IO_DBG(pm8001_ha,
2485 			pm8001_printk("IO_ABORTED IOMB Tag\n"));
2486 		ts->resp = SAS_TASK_COMPLETE;
2487 		ts->stat = SAS_ABORTED_TASK;
2488 		if (pm8001_dev)
2489 			pm8001_dev->running_req--;
2490 		break;
2491 		/* following cases are to do cases */
2492 	case IO_UNDERFLOW:
2493 		/* SATA Completion with error */
2494 		PM8001_IO_DBG(pm8001_ha,
2495 			pm8001_printk("IO_UNDERFLOW param = %d\n", param));
2496 		ts->resp = SAS_TASK_COMPLETE;
2497 		ts->stat = SAS_DATA_UNDERRUN;
2498 		ts->residual =  param;
2499 		if (pm8001_dev)
2500 			pm8001_dev->running_req--;
2501 		break;
2502 	case IO_NO_DEVICE:
2503 		PM8001_IO_DBG(pm8001_ha,
2504 			pm8001_printk("IO_NO_DEVICE\n"));
2505 		ts->resp = SAS_TASK_UNDELIVERED;
2506 		ts->stat = SAS_PHY_DOWN;
2507 		break;
2508 	case IO_XFER_ERROR_BREAK:
2509 		PM8001_IO_DBG(pm8001_ha,
2510 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
2511 		ts->resp = SAS_TASK_COMPLETE;
2512 		ts->stat = SAS_INTERRUPTED;
2513 		break;
2514 	case IO_XFER_ERROR_PHY_NOT_READY:
2515 		PM8001_IO_DBG(pm8001_ha,
2516 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
2517 		ts->resp = SAS_TASK_COMPLETE;
2518 		ts->stat = SAS_OPEN_REJECT;
2519 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2520 		break;
2521 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2522 		PM8001_IO_DBG(pm8001_ha,
2523 			pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT"
2524 			"_SUPPORTED\n"));
2525 		ts->resp = SAS_TASK_COMPLETE;
2526 		ts->stat = SAS_OPEN_REJECT;
2527 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2528 		break;
2529 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2530 		PM8001_IO_DBG(pm8001_ha,
2531 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
2532 		ts->resp = SAS_TASK_COMPLETE;
2533 		ts->stat = SAS_OPEN_REJECT;
2534 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2535 		break;
2536 	case IO_OPEN_CNX_ERROR_BREAK:
2537 		PM8001_IO_DBG(pm8001_ha,
2538 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
2539 		ts->resp = SAS_TASK_COMPLETE;
2540 		ts->stat = SAS_OPEN_REJECT;
2541 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2542 		break;
2543 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2544 		PM8001_IO_DBG(pm8001_ha,
2545 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\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_IT_NEXUS_LOSS);
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_BAD_DESTINATION:
2559 		PM8001_IO_DBG(pm8001_ha,
2560 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
2561 		ts->resp = SAS_TASK_UNDELIVERED;
2562 		ts->stat = SAS_OPEN_REJECT;
2563 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2564 		if (!t->uldd_task) {
2565 			pm8001_handle_event(pm8001_ha,
2566 				pm8001_dev,
2567 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2568 			ts->resp = SAS_TASK_UNDELIVERED;
2569 			ts->stat = SAS_QUEUE_FULL;
2570 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2571 			return;
2572 		}
2573 		break;
2574 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2575 		PM8001_IO_DBG(pm8001_ha,
2576 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2577 			"NOT_SUPPORTED\n"));
2578 		ts->resp = SAS_TASK_COMPLETE;
2579 		ts->stat = SAS_OPEN_REJECT;
2580 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2581 		break;
2582 	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
2583 		PM8001_IO_DBG(pm8001_ha,
2584 			pm8001_printk("IO_OPEN_CNX_ERROR_STP_RESOURCES"
2585 			"_BUSY\n"));
2586 		ts->resp = SAS_TASK_COMPLETE;
2587 		ts->stat = SAS_DEV_NO_RESPONSE;
2588 		if (!t->uldd_task) {
2589 			pm8001_handle_event(pm8001_ha,
2590 				pm8001_dev,
2591 				IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY);
2592 			ts->resp = SAS_TASK_UNDELIVERED;
2593 			ts->stat = SAS_QUEUE_FULL;
2594 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2595 			return;
2596 		}
2597 		break;
2598 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2599 		PM8001_IO_DBG(pm8001_ha,
2600 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2601 		ts->resp = SAS_TASK_COMPLETE;
2602 		ts->stat = SAS_OPEN_REJECT;
2603 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2604 		break;
2605 	case IO_XFER_ERROR_NAK_RECEIVED:
2606 		PM8001_IO_DBG(pm8001_ha,
2607 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2608 		ts->resp = SAS_TASK_COMPLETE;
2609 		ts->stat = SAS_NAK_R_ERR;
2610 		break;
2611 	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
2612 		PM8001_IO_DBG(pm8001_ha,
2613 			pm8001_printk("IO_XFER_ERROR_ACK_NAK_TIMEOUT\n"));
2614 		ts->resp = SAS_TASK_COMPLETE;
2615 		ts->stat = SAS_NAK_R_ERR;
2616 		break;
2617 	case IO_XFER_ERROR_DMA:
2618 		PM8001_IO_DBG(pm8001_ha,
2619 			pm8001_printk("IO_XFER_ERROR_DMA\n"));
2620 		ts->resp = SAS_TASK_COMPLETE;
2621 		ts->stat = SAS_ABORTED_TASK;
2622 		break;
2623 	case IO_XFER_ERROR_SATA_LINK_TIMEOUT:
2624 		PM8001_IO_DBG(pm8001_ha,
2625 			pm8001_printk("IO_XFER_ERROR_SATA_LINK_TIMEOUT\n"));
2626 		ts->resp = SAS_TASK_UNDELIVERED;
2627 		ts->stat = SAS_DEV_NO_RESPONSE;
2628 		break;
2629 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2630 		PM8001_IO_DBG(pm8001_ha,
2631 			pm8001_printk("IO_XFER_ERROR_REJECTED_NCQ_MODE\n"));
2632 		ts->resp = SAS_TASK_COMPLETE;
2633 		ts->stat = SAS_DATA_UNDERRUN;
2634 		break;
2635 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2636 		PM8001_IO_DBG(pm8001_ha,
2637 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2638 		ts->resp = SAS_TASK_COMPLETE;
2639 		ts->stat = SAS_OPEN_TO;
2640 		break;
2641 	case IO_PORT_IN_RESET:
2642 		PM8001_IO_DBG(pm8001_ha,
2643 			pm8001_printk("IO_PORT_IN_RESET\n"));
2644 		ts->resp = SAS_TASK_COMPLETE;
2645 		ts->stat = SAS_DEV_NO_RESPONSE;
2646 		break;
2647 	case IO_DS_NON_OPERATIONAL:
2648 		PM8001_IO_DBG(pm8001_ha,
2649 			pm8001_printk("IO_DS_NON_OPERATIONAL\n"));
2650 		ts->resp = SAS_TASK_COMPLETE;
2651 		ts->stat = SAS_DEV_NO_RESPONSE;
2652 		if (!t->uldd_task) {
2653 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2654 				    IO_DS_NON_OPERATIONAL);
2655 			ts->resp = SAS_TASK_UNDELIVERED;
2656 			ts->stat = SAS_QUEUE_FULL;
2657 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2658 			return;
2659 		}
2660 		break;
2661 	case IO_DS_IN_RECOVERY:
2662 		PM8001_IO_DBG(pm8001_ha,
2663 			pm8001_printk("  IO_DS_IN_RECOVERY\n"));
2664 		ts->resp = SAS_TASK_COMPLETE;
2665 		ts->stat = SAS_DEV_NO_RESPONSE;
2666 		break;
2667 	case IO_DS_IN_ERROR:
2668 		PM8001_IO_DBG(pm8001_ha,
2669 			pm8001_printk("IO_DS_IN_ERROR\n"));
2670 		ts->resp = SAS_TASK_COMPLETE;
2671 		ts->stat = SAS_DEV_NO_RESPONSE;
2672 		if (!t->uldd_task) {
2673 			pm8001_handle_event(pm8001_ha, pm8001_dev,
2674 				    IO_DS_IN_ERROR);
2675 			ts->resp = SAS_TASK_UNDELIVERED;
2676 			ts->stat = SAS_QUEUE_FULL;
2677 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2678 			return;
2679 		}
2680 		break;
2681 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
2682 		PM8001_IO_DBG(pm8001_ha,
2683 			pm8001_printk("IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n"));
2684 		ts->resp = SAS_TASK_COMPLETE;
2685 		ts->stat = SAS_OPEN_REJECT;
2686 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2687 		break;
2688 	default:
2689 		PM8001_DEVIO_DBG(pm8001_ha,
2690 			pm8001_printk("Unknown status 0x%x\n", status));
2691 		/* not allowed case. Therefore, return failed status */
2692 		ts->resp = SAS_TASK_COMPLETE;
2693 		ts->stat = SAS_DEV_NO_RESPONSE;
2694 		break;
2695 	}
2696 	spin_lock_irqsave(&t->task_state_lock, flags);
2697 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2698 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2699 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2700 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2701 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2702 		PM8001_FAIL_DBG(pm8001_ha,
2703 			pm8001_printk("task 0x%p done with io_status 0x%x"
2704 			" resp 0x%x stat 0x%x but aborted by upper layer!\n",
2705 			t, status, ts->resp, ts->stat));
2706 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2707 	} else {
2708 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2709 		pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2710 	}
2711 }
2712 
2713 /*See the comments for mpi_ssp_completion */
2714 static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
2715 {
2716 	struct sas_task *t;
2717 	struct task_status_struct *ts;
2718 	struct pm8001_ccb_info *ccb;
2719 	struct pm8001_device *pm8001_dev;
2720 	struct sata_event_resp *psataPayload =
2721 		(struct sata_event_resp *)(piomb + 4);
2722 	u32 event = le32_to_cpu(psataPayload->event);
2723 	u32 tag = le32_to_cpu(psataPayload->tag);
2724 	u32 port_id = le32_to_cpu(psataPayload->port_id);
2725 	u32 dev_id = le32_to_cpu(psataPayload->device_id);
2726 	unsigned long flags;
2727 
2728 	ccb = &pm8001_ha->ccb_info[tag];
2729 
2730 	if (ccb) {
2731 		t = ccb->task;
2732 		pm8001_dev = ccb->device;
2733 	} else {
2734 		PM8001_FAIL_DBG(pm8001_ha,
2735 			pm8001_printk("No CCB !!!. returning\n"));
2736 	}
2737 	if (event)
2738 		PM8001_FAIL_DBG(pm8001_ha,
2739 			pm8001_printk("SATA EVENT 0x%x\n", event));
2740 
2741 	/* Check if this is NCQ error */
2742 	if (event == IO_XFER_ERROR_ABORTED_NCQ_MODE) {
2743 		/* find device using device id */
2744 		pm8001_dev = pm8001_find_dev(pm8001_ha, dev_id);
2745 		/* send read log extension */
2746 		if (pm8001_dev)
2747 			pm8001_send_read_log(pm8001_ha, pm8001_dev);
2748 		return;
2749 	}
2750 
2751 	ccb = &pm8001_ha->ccb_info[tag];
2752 	t = ccb->task;
2753 	pm8001_dev = ccb->device;
2754 	if (event)
2755 		PM8001_FAIL_DBG(pm8001_ha,
2756 			pm8001_printk("sata IO status 0x%x\n", event));
2757 	if (unlikely(!t || !t->lldd_task || !t->dev))
2758 		return;
2759 	ts = &t->task_status;
2760 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
2761 		"port_id:0x%x, device_id:0x%x, tag:0x%x, event:0x%x\n",
2762 		port_id, dev_id, tag, event));
2763 	switch (event) {
2764 	case IO_OVERFLOW:
2765 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW\n"));
2766 		ts->resp = SAS_TASK_COMPLETE;
2767 		ts->stat = SAS_DATA_OVERRUN;
2768 		ts->residual = 0;
2769 		if (pm8001_dev)
2770 			pm8001_dev->running_req--;
2771 		break;
2772 	case IO_XFER_ERROR_BREAK:
2773 		PM8001_IO_DBG(pm8001_ha,
2774 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
2775 		ts->resp = SAS_TASK_COMPLETE;
2776 		ts->stat = SAS_INTERRUPTED;
2777 		break;
2778 	case IO_XFER_ERROR_PHY_NOT_READY:
2779 		PM8001_IO_DBG(pm8001_ha,
2780 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
2781 		ts->resp = SAS_TASK_COMPLETE;
2782 		ts->stat = SAS_OPEN_REJECT;
2783 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2784 		break;
2785 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
2786 		PM8001_IO_DBG(pm8001_ha,
2787 			pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT"
2788 			"_SUPPORTED\n"));
2789 		ts->resp = SAS_TASK_COMPLETE;
2790 		ts->stat = SAS_OPEN_REJECT;
2791 		ts->open_rej_reason = SAS_OREJ_EPROTO;
2792 		break;
2793 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
2794 		PM8001_IO_DBG(pm8001_ha,
2795 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
2796 		ts->resp = SAS_TASK_COMPLETE;
2797 		ts->stat = SAS_OPEN_REJECT;
2798 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2799 		break;
2800 	case IO_OPEN_CNX_ERROR_BREAK:
2801 		PM8001_IO_DBG(pm8001_ha,
2802 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
2803 		ts->resp = SAS_TASK_COMPLETE;
2804 		ts->stat = SAS_OPEN_REJECT;
2805 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
2806 		break;
2807 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
2808 		PM8001_IO_DBG(pm8001_ha,
2809 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
2810 		ts->resp = SAS_TASK_UNDELIVERED;
2811 		ts->stat = SAS_DEV_NO_RESPONSE;
2812 		if (!t->uldd_task) {
2813 			pm8001_handle_event(pm8001_ha,
2814 				pm8001_dev,
2815 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
2816 			ts->resp = SAS_TASK_COMPLETE;
2817 			ts->stat = SAS_QUEUE_FULL;
2818 			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2819 			return;
2820 		}
2821 		break;
2822 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
2823 		PM8001_IO_DBG(pm8001_ha,
2824 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
2825 		ts->resp = SAS_TASK_UNDELIVERED;
2826 		ts->stat = SAS_OPEN_REJECT;
2827 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2828 		break;
2829 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
2830 		PM8001_IO_DBG(pm8001_ha,
2831 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
2832 			"NOT_SUPPORTED\n"));
2833 		ts->resp = SAS_TASK_COMPLETE;
2834 		ts->stat = SAS_OPEN_REJECT;
2835 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2836 		break;
2837 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
2838 		PM8001_IO_DBG(pm8001_ha,
2839 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
2840 		ts->resp = SAS_TASK_COMPLETE;
2841 		ts->stat = SAS_OPEN_REJECT;
2842 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2843 		break;
2844 	case IO_XFER_ERROR_NAK_RECEIVED:
2845 		PM8001_IO_DBG(pm8001_ha,
2846 			pm8001_printk("IO_XFER_ERROR_NAK_RECEIVED\n"));
2847 		ts->resp = SAS_TASK_COMPLETE;
2848 		ts->stat = SAS_NAK_R_ERR;
2849 		break;
2850 	case IO_XFER_ERROR_PEER_ABORTED:
2851 		PM8001_IO_DBG(pm8001_ha,
2852 			pm8001_printk("IO_XFER_ERROR_PEER_ABORTED\n"));
2853 		ts->resp = SAS_TASK_COMPLETE;
2854 		ts->stat = SAS_NAK_R_ERR;
2855 		break;
2856 	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
2857 		PM8001_IO_DBG(pm8001_ha,
2858 			pm8001_printk("IO_XFER_ERROR_REJECTED_NCQ_MODE\n"));
2859 		ts->resp = SAS_TASK_COMPLETE;
2860 		ts->stat = SAS_DATA_UNDERRUN;
2861 		break;
2862 	case IO_XFER_OPEN_RETRY_TIMEOUT:
2863 		PM8001_IO_DBG(pm8001_ha,
2864 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
2865 		ts->resp = SAS_TASK_COMPLETE;
2866 		ts->stat = SAS_OPEN_TO;
2867 		break;
2868 	case IO_XFER_ERROR_UNEXPECTED_PHASE:
2869 		PM8001_IO_DBG(pm8001_ha,
2870 			pm8001_printk("IO_XFER_ERROR_UNEXPECTED_PHASE\n"));
2871 		ts->resp = SAS_TASK_COMPLETE;
2872 		ts->stat = SAS_OPEN_TO;
2873 		break;
2874 	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
2875 		PM8001_IO_DBG(pm8001_ha,
2876 			pm8001_printk("IO_XFER_ERROR_XFER_RDY_OVERRUN\n"));
2877 		ts->resp = SAS_TASK_COMPLETE;
2878 		ts->stat = SAS_OPEN_TO;
2879 		break;
2880 	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
2881 		PM8001_IO_DBG(pm8001_ha,
2882 		       pm8001_printk("IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n"));
2883 		ts->resp = SAS_TASK_COMPLETE;
2884 		ts->stat = SAS_OPEN_TO;
2885 		break;
2886 	case IO_XFER_ERROR_OFFSET_MISMATCH:
2887 		PM8001_IO_DBG(pm8001_ha,
2888 			pm8001_printk("IO_XFER_ERROR_OFFSET_MISMATCH\n"));
2889 		ts->resp = SAS_TASK_COMPLETE;
2890 		ts->stat = SAS_OPEN_TO;
2891 		break;
2892 	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
2893 		PM8001_IO_DBG(pm8001_ha,
2894 			pm8001_printk("IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n"));
2895 		ts->resp = SAS_TASK_COMPLETE;
2896 		ts->stat = SAS_OPEN_TO;
2897 		break;
2898 	case IO_XFER_CMD_FRAME_ISSUED:
2899 		PM8001_IO_DBG(pm8001_ha,
2900 			pm8001_printk("IO_XFER_CMD_FRAME_ISSUED\n"));
2901 		break;
2902 	case IO_XFER_PIO_SETUP_ERROR:
2903 		PM8001_IO_DBG(pm8001_ha,
2904 			pm8001_printk("IO_XFER_PIO_SETUP_ERROR\n"));
2905 		ts->resp = SAS_TASK_COMPLETE;
2906 		ts->stat = SAS_OPEN_TO;
2907 		break;
2908 	default:
2909 		PM8001_DEVIO_DBG(pm8001_ha,
2910 			pm8001_printk("Unknown status 0x%x\n", event));
2911 		/* not allowed case. Therefore, return failed status */
2912 		ts->resp = SAS_TASK_COMPLETE;
2913 		ts->stat = SAS_OPEN_TO;
2914 		break;
2915 	}
2916 	spin_lock_irqsave(&t->task_state_lock, flags);
2917 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2918 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
2919 	t->task_state_flags |= SAS_TASK_STATE_DONE;
2920 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
2921 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2922 		PM8001_FAIL_DBG(pm8001_ha,
2923 			pm8001_printk("task 0x%p done with io_status 0x%x"
2924 			" resp 0x%x stat 0x%x but aborted by upper layer!\n",
2925 			t, event, ts->resp, ts->stat));
2926 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
2927 	} else {
2928 		spin_unlock_irqrestore(&t->task_state_lock, flags);
2929 		pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
2930 	}
2931 }
2932 
2933 /*See the comments for mpi_ssp_completion */
2934 static void
2935 mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2936 {
2937 	struct sas_task *t;
2938 	struct pm8001_ccb_info *ccb;
2939 	unsigned long flags;
2940 	u32 status;
2941 	u32 tag;
2942 	struct smp_completion_resp *psmpPayload;
2943 	struct task_status_struct *ts;
2944 	struct pm8001_device *pm8001_dev;
2945 
2946 	psmpPayload = (struct smp_completion_resp *)(piomb + 4);
2947 	status = le32_to_cpu(psmpPayload->status);
2948 	tag = le32_to_cpu(psmpPayload->tag);
2949 
2950 	ccb = &pm8001_ha->ccb_info[tag];
2951 	t = ccb->task;
2952 	ts = &t->task_status;
2953 	pm8001_dev = ccb->device;
2954 	if (status) {
2955 		PM8001_FAIL_DBG(pm8001_ha,
2956 			pm8001_printk("smp IO status 0x%x\n", status));
2957 		PM8001_IOERR_DBG(pm8001_ha,
2958 			pm8001_printk("status:0x%x, tag:0x%x, task:0x%p\n",
2959 			status, tag, t));
2960 	}
2961 	if (unlikely(!t || !t->lldd_task || !t->dev))
2962 		return;
2963 
2964 	switch (status) {
2965 	case IO_SUCCESS:
2966 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS\n"));
2967 		ts->resp = SAS_TASK_COMPLETE;
2968 		ts->stat = SAM_STAT_GOOD;
2969 		if (pm8001_dev)
2970 			pm8001_dev->running_req--;
2971 		break;
2972 	case IO_ABORTED:
2973 		PM8001_IO_DBG(pm8001_ha,
2974 			pm8001_printk("IO_ABORTED IOMB\n"));
2975 		ts->resp = SAS_TASK_COMPLETE;
2976 		ts->stat = SAS_ABORTED_TASK;
2977 		if (pm8001_dev)
2978 			pm8001_dev->running_req--;
2979 		break;
2980 	case IO_OVERFLOW:
2981 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW\n"));
2982 		ts->resp = SAS_TASK_COMPLETE;
2983 		ts->stat = SAS_DATA_OVERRUN;
2984 		ts->residual = 0;
2985 		if (pm8001_dev)
2986 			pm8001_dev->running_req--;
2987 		break;
2988 	case IO_NO_DEVICE:
2989 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_NO_DEVICE\n"));
2990 		ts->resp = SAS_TASK_COMPLETE;
2991 		ts->stat = SAS_PHY_DOWN;
2992 		break;
2993 	case IO_ERROR_HW_TIMEOUT:
2994 		PM8001_IO_DBG(pm8001_ha,
2995 			pm8001_printk("IO_ERROR_HW_TIMEOUT\n"));
2996 		ts->resp = SAS_TASK_COMPLETE;
2997 		ts->stat = SAM_STAT_BUSY;
2998 		break;
2999 	case IO_XFER_ERROR_BREAK:
3000 		PM8001_IO_DBG(pm8001_ha,
3001 			pm8001_printk("IO_XFER_ERROR_BREAK\n"));
3002 		ts->resp = SAS_TASK_COMPLETE;
3003 		ts->stat = SAM_STAT_BUSY;
3004 		break;
3005 	case IO_XFER_ERROR_PHY_NOT_READY:
3006 		PM8001_IO_DBG(pm8001_ha,
3007 			pm8001_printk("IO_XFER_ERROR_PHY_NOT_READY\n"));
3008 		ts->resp = SAS_TASK_COMPLETE;
3009 		ts->stat = SAM_STAT_BUSY;
3010 		break;
3011 	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
3012 		PM8001_IO_DBG(pm8001_ha,
3013 		pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n"));
3014 		ts->resp = SAS_TASK_COMPLETE;
3015 		ts->stat = SAS_OPEN_REJECT;
3016 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
3017 		break;
3018 	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
3019 		PM8001_IO_DBG(pm8001_ha,
3020 			pm8001_printk("IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n"));
3021 		ts->resp = SAS_TASK_COMPLETE;
3022 		ts->stat = SAS_OPEN_REJECT;
3023 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
3024 		break;
3025 	case IO_OPEN_CNX_ERROR_BREAK:
3026 		PM8001_IO_DBG(pm8001_ha,
3027 			pm8001_printk("IO_OPEN_CNX_ERROR_BREAK\n"));
3028 		ts->resp = SAS_TASK_COMPLETE;
3029 		ts->stat = SAS_OPEN_REJECT;
3030 		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
3031 		break;
3032 	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
3033 		PM8001_IO_DBG(pm8001_ha,
3034 			pm8001_printk("IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n"));
3035 		ts->resp = SAS_TASK_COMPLETE;
3036 		ts->stat = SAS_OPEN_REJECT;
3037 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
3038 		pm8001_handle_event(pm8001_ha,
3039 				pm8001_dev,
3040 				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
3041 		break;
3042 	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
3043 		PM8001_IO_DBG(pm8001_ha,
3044 			pm8001_printk("IO_OPEN_CNX_ERROR_BAD_DESTINATION\n"));
3045 		ts->resp = SAS_TASK_COMPLETE;
3046 		ts->stat = SAS_OPEN_REJECT;
3047 		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
3048 		break;
3049 	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
3050 		PM8001_IO_DBG(pm8001_ha,
3051 			pm8001_printk("IO_OPEN_CNX_ERROR_CONNECTION_RATE_"
3052 			"NOT_SUPPORTED\n"));
3053 		ts->resp = SAS_TASK_COMPLETE;
3054 		ts->stat = SAS_OPEN_REJECT;
3055 		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
3056 		break;
3057 	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
3058 		PM8001_IO_DBG(pm8001_ha,
3059 		       pm8001_printk("IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n"));
3060 		ts->resp = SAS_TASK_COMPLETE;
3061 		ts->stat = SAS_OPEN_REJECT;
3062 		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
3063 		break;
3064 	case IO_XFER_ERROR_RX_FRAME:
3065 		PM8001_IO_DBG(pm8001_ha,
3066 			pm8001_printk("IO_XFER_ERROR_RX_FRAME\n"));
3067 		ts->resp = SAS_TASK_COMPLETE;
3068 		ts->stat = SAS_DEV_NO_RESPONSE;
3069 		break;
3070 	case IO_XFER_OPEN_RETRY_TIMEOUT:
3071 		PM8001_IO_DBG(pm8001_ha,
3072 			pm8001_printk("IO_XFER_OPEN_RETRY_TIMEOUT\n"));
3073 		ts->resp = SAS_TASK_COMPLETE;
3074 		ts->stat = SAS_OPEN_REJECT;
3075 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3076 		break;
3077 	case IO_ERROR_INTERNAL_SMP_RESOURCE:
3078 		PM8001_IO_DBG(pm8001_ha,
3079 			pm8001_printk("IO_ERROR_INTERNAL_SMP_RESOURCE\n"));
3080 		ts->resp = SAS_TASK_COMPLETE;
3081 		ts->stat = SAS_QUEUE_FULL;
3082 		break;
3083 	case IO_PORT_IN_RESET:
3084 		PM8001_IO_DBG(pm8001_ha,
3085 			pm8001_printk("IO_PORT_IN_RESET\n"));
3086 		ts->resp = SAS_TASK_COMPLETE;
3087 		ts->stat = SAS_OPEN_REJECT;
3088 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3089 		break;
3090 	case IO_DS_NON_OPERATIONAL:
3091 		PM8001_IO_DBG(pm8001_ha,
3092 			pm8001_printk("IO_DS_NON_OPERATIONAL\n"));
3093 		ts->resp = SAS_TASK_COMPLETE;
3094 		ts->stat = SAS_DEV_NO_RESPONSE;
3095 		break;
3096 	case IO_DS_IN_RECOVERY:
3097 		PM8001_IO_DBG(pm8001_ha,
3098 			pm8001_printk("IO_DS_IN_RECOVERY\n"));
3099 		ts->resp = SAS_TASK_COMPLETE;
3100 		ts->stat = SAS_OPEN_REJECT;
3101 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3102 		break;
3103 	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
3104 		PM8001_IO_DBG(pm8001_ha,
3105 			pm8001_printk("IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n"));
3106 		ts->resp = SAS_TASK_COMPLETE;
3107 		ts->stat = SAS_OPEN_REJECT;
3108 		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
3109 		break;
3110 	default:
3111 		PM8001_DEVIO_DBG(pm8001_ha,
3112 			pm8001_printk("Unknown status 0x%x\n", status));
3113 		ts->resp = SAS_TASK_COMPLETE;
3114 		ts->stat = SAS_DEV_NO_RESPONSE;
3115 		/* not allowed case. Therefore, return failed status */
3116 		break;
3117 	}
3118 	spin_lock_irqsave(&t->task_state_lock, flags);
3119 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
3120 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
3121 	t->task_state_flags |= SAS_TASK_STATE_DONE;
3122 	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
3123 		spin_unlock_irqrestore(&t->task_state_lock, flags);
3124 		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("task 0x%p done with"
3125 			" io_status 0x%x resp 0x%x "
3126 			"stat 0x%x but aborted by upper layer!\n",
3127 			t, status, ts->resp, ts->stat));
3128 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3129 	} else {
3130 		spin_unlock_irqrestore(&t->task_state_lock, flags);
3131 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3132 		mb();/* in order to force CPU ordering */
3133 		t->task_done(t);
3134 	}
3135 }
3136 
3137 void pm8001_mpi_set_dev_state_resp(struct pm8001_hba_info *pm8001_ha,
3138 		void *piomb)
3139 {
3140 	struct set_dev_state_resp *pPayload =
3141 		(struct set_dev_state_resp *)(piomb + 4);
3142 	u32 tag = le32_to_cpu(pPayload->tag);
3143 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3144 	struct pm8001_device *pm8001_dev = ccb->device;
3145 	u32 status = le32_to_cpu(pPayload->status);
3146 	u32 device_id = le32_to_cpu(pPayload->device_id);
3147 	u8 pds = le32_to_cpu(pPayload->pds_nds) & PDS_BITS;
3148 	u8 nds = le32_to_cpu(pPayload->pds_nds) & NDS_BITS;
3149 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("Set device id = 0x%x state "
3150 		"from 0x%x to 0x%x status = 0x%x!\n",
3151 		device_id, pds, nds, status));
3152 	complete(pm8001_dev->setds_completion);
3153 	ccb->task = NULL;
3154 	ccb->ccb_tag = 0xFFFFFFFF;
3155 	pm8001_tag_free(pm8001_ha, tag);
3156 }
3157 
3158 void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3159 {
3160 	struct get_nvm_data_resp *pPayload =
3161 		(struct get_nvm_data_resp *)(piomb + 4);
3162 	u32 tag = le32_to_cpu(pPayload->tag);
3163 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3164 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
3165 	complete(pm8001_ha->nvmd_completion);
3166 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("Set nvm data complete!\n"));
3167 	if ((dlen_status & NVMD_STAT) != 0) {
3168 		PM8001_FAIL_DBG(pm8001_ha,
3169 			pm8001_printk("Set nvm data error!\n"));
3170 		return;
3171 	}
3172 	ccb->task = NULL;
3173 	ccb->ccb_tag = 0xFFFFFFFF;
3174 	pm8001_tag_free(pm8001_ha, tag);
3175 }
3176 
3177 void
3178 pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3179 {
3180 	struct fw_control_ex    *fw_control_context;
3181 	struct get_nvm_data_resp *pPayload =
3182 		(struct get_nvm_data_resp *)(piomb + 4);
3183 	u32 tag = le32_to_cpu(pPayload->tag);
3184 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3185 	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
3186 	u32 ir_tds_bn_dps_das_nvm =
3187 		le32_to_cpu(pPayload->ir_tda_bn_dps_das_nvm);
3188 	void *virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr;
3189 	fw_control_context = ccb->fw_control_context;
3190 
3191 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("Get nvm data complete!\n"));
3192 	if ((dlen_status & NVMD_STAT) != 0) {
3193 		PM8001_FAIL_DBG(pm8001_ha,
3194 			pm8001_printk("Get nvm data error!\n"));
3195 		complete(pm8001_ha->nvmd_completion);
3196 		return;
3197 	}
3198 
3199 	if (ir_tds_bn_dps_das_nvm & IPMode) {
3200 		/* indirect mode - IR bit set */
3201 		PM8001_MSG_DBG(pm8001_ha,
3202 			pm8001_printk("Get NVMD success, IR=1\n"));
3203 		if ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == TWI_DEVICE) {
3204 			if (ir_tds_bn_dps_das_nvm == 0x80a80200) {
3205 				memcpy(pm8001_ha->sas_addr,
3206 				      ((u8 *)virt_addr + 4),
3207 				       SAS_ADDR_SIZE);
3208 				PM8001_MSG_DBG(pm8001_ha,
3209 					pm8001_printk("Get SAS address"
3210 					" from VPD successfully!\n"));
3211 			}
3212 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == C_SEEPROM)
3213 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == VPD_FLASH) ||
3214 			((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == EXPAN_ROM)) {
3215 				;
3216 		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == AAP1_RDUMP)
3217 			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == IOP_RDUMP)) {
3218 			;
3219 		} else {
3220 			/* Should not be happened*/
3221 			PM8001_MSG_DBG(pm8001_ha,
3222 				pm8001_printk("(IR=1)Wrong Device type 0x%x\n",
3223 				ir_tds_bn_dps_das_nvm));
3224 		}
3225 	} else /* direct mode */{
3226 		PM8001_MSG_DBG(pm8001_ha,
3227 			pm8001_printk("Get NVMD success, IR=0, dataLen=%d\n",
3228 			(dlen_status & NVMD_LEN) >> 24));
3229 	}
3230 	/* Though fw_control_context is freed below, usrAddr still needs
3231 	 * to be updated as this holds the response to the request function
3232 	 */
3233 	memcpy(fw_control_context->usrAddr,
3234 		pm8001_ha->memoryMap.region[NVMD].virt_ptr,
3235 		fw_control_context->len);
3236 	kfree(ccb->fw_control_context);
3237 	ccb->task = NULL;
3238 	ccb->ccb_tag = 0xFFFFFFFF;
3239 	pm8001_tag_free(pm8001_ha, tag);
3240 	complete(pm8001_ha->nvmd_completion);
3241 }
3242 
3243 int pm8001_mpi_local_phy_ctl(struct pm8001_hba_info *pm8001_ha, void *piomb)
3244 {
3245 	u32 tag;
3246 	struct local_phy_ctl_resp *pPayload =
3247 		(struct local_phy_ctl_resp *)(piomb + 4);
3248 	u32 status = le32_to_cpu(pPayload->status);
3249 	u32 phy_id = le32_to_cpu(pPayload->phyop_phyid) & ID_BITS;
3250 	u32 phy_op = le32_to_cpu(pPayload->phyop_phyid) & OP_BITS;
3251 	tag = le32_to_cpu(pPayload->tag);
3252 	if (status != 0) {
3253 		PM8001_MSG_DBG(pm8001_ha,
3254 			pm8001_printk("%x phy execute %x phy op failed!\n",
3255 			phy_id, phy_op));
3256 	} else {
3257 		PM8001_MSG_DBG(pm8001_ha,
3258 			pm8001_printk("%x phy execute %x phy op success!\n",
3259 			phy_id, phy_op));
3260 		pm8001_ha->phy[phy_id].reset_success = true;
3261 	}
3262 	if (pm8001_ha->phy[phy_id].enable_completion) {
3263 		complete(pm8001_ha->phy[phy_id].enable_completion);
3264 		pm8001_ha->phy[phy_id].enable_completion = NULL;
3265 	}
3266 	pm8001_tag_free(pm8001_ha, tag);
3267 	return 0;
3268 }
3269 
3270 /**
3271  * pm8001_bytes_dmaed - one of the interface function communication with libsas
3272  * @pm8001_ha: our hba card information
3273  * @i: which phy that received the event.
3274  *
3275  * when HBA driver received the identify done event or initiate FIS received
3276  * event(for SATA), it will invoke this function to notify the sas layer that
3277  * the sas toplogy has formed, please discover the the whole sas domain,
3278  * while receive a broadcast(change) primitive just tell the sas
3279  * layer to discover the changed domain rather than the whole domain.
3280  */
3281 void pm8001_bytes_dmaed(struct pm8001_hba_info *pm8001_ha, int i)
3282 {
3283 	struct pm8001_phy *phy = &pm8001_ha->phy[i];
3284 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
3285 	if (!phy->phy_attached)
3286 		return;
3287 
3288 	if (sas_phy->phy) {
3289 		struct sas_phy *sphy = sas_phy->phy;
3290 		sphy->negotiated_linkrate = sas_phy->linkrate;
3291 		sphy->minimum_linkrate = phy->minimum_linkrate;
3292 		sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
3293 		sphy->maximum_linkrate = phy->maximum_linkrate;
3294 		sphy->maximum_linkrate_hw = phy->maximum_linkrate;
3295 	}
3296 
3297 	if (phy->phy_type & PORT_TYPE_SAS) {
3298 		struct sas_identify_frame *id;
3299 		id = (struct sas_identify_frame *)phy->frame_rcvd;
3300 		id->dev_type = phy->identify.device_type;
3301 		id->initiator_bits = SAS_PROTOCOL_ALL;
3302 		id->target_bits = phy->identify.target_port_protocols;
3303 	} else if (phy->phy_type & PORT_TYPE_SATA) {
3304 		/*Nothing*/
3305 	}
3306 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("phy %d byte dmaded.\n", i));
3307 
3308 	sas_phy->frame_rcvd_size = phy->frame_rcvd_size;
3309 	pm8001_ha->sas->notify_port_event(sas_phy, PORTE_BYTES_DMAED);
3310 }
3311 
3312 /* Get the link rate speed  */
3313 void pm8001_get_lrate_mode(struct pm8001_phy *phy, u8 link_rate)
3314 {
3315 	struct sas_phy *sas_phy = phy->sas_phy.phy;
3316 
3317 	switch (link_rate) {
3318 	case PHY_SPEED_120:
3319 		phy->sas_phy.linkrate = SAS_LINK_RATE_12_0_GBPS;
3320 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_12_0_GBPS;
3321 		break;
3322 	case PHY_SPEED_60:
3323 		phy->sas_phy.linkrate = SAS_LINK_RATE_6_0_GBPS;
3324 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_6_0_GBPS;
3325 		break;
3326 	case PHY_SPEED_30:
3327 		phy->sas_phy.linkrate = SAS_LINK_RATE_3_0_GBPS;
3328 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS;
3329 		break;
3330 	case PHY_SPEED_15:
3331 		phy->sas_phy.linkrate = SAS_LINK_RATE_1_5_GBPS;
3332 		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_1_5_GBPS;
3333 		break;
3334 	}
3335 	sas_phy->negotiated_linkrate = phy->sas_phy.linkrate;
3336 	sas_phy->maximum_linkrate_hw = SAS_LINK_RATE_6_0_GBPS;
3337 	sas_phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
3338 	sas_phy->maximum_linkrate = SAS_LINK_RATE_6_0_GBPS;
3339 	sas_phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
3340 }
3341 
3342 /**
3343  * asd_get_attached_sas_addr -- extract/generate attached SAS address
3344  * @phy: pointer to asd_phy
3345  * @sas_addr: pointer to buffer where the SAS address is to be written
3346  *
3347  * This function extracts the SAS address from an IDENTIFY frame
3348  * received.  If OOB is SATA, then a SAS address is generated from the
3349  * HA tables.
3350  *
3351  * LOCKING: the frame_rcvd_lock needs to be held since this parses the frame
3352  * buffer.
3353  */
3354 void pm8001_get_attached_sas_addr(struct pm8001_phy *phy,
3355 	u8 *sas_addr)
3356 {
3357 	if (phy->sas_phy.frame_rcvd[0] == 0x34
3358 		&& phy->sas_phy.oob_mode == SATA_OOB_MODE) {
3359 		struct pm8001_hba_info *pm8001_ha = phy->sas_phy.ha->lldd_ha;
3360 		/* FIS device-to-host */
3361 		u64 addr = be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr);
3362 		addr += phy->sas_phy.id;
3363 		*(__be64 *)sas_addr = cpu_to_be64(addr);
3364 	} else {
3365 		struct sas_identify_frame *idframe =
3366 			(void *) phy->sas_phy.frame_rcvd;
3367 		memcpy(sas_addr, idframe->sas_addr, SAS_ADDR_SIZE);
3368 	}
3369 }
3370 
3371 /**
3372  * pm8001_hw_event_ack_req- For PM8001,some events need to acknowage to FW.
3373  * @pm8001_ha: our hba card information
3374  * @Qnum: the outbound queue message number.
3375  * @SEA: source of event to ack
3376  * @port_id: port id.
3377  * @phyId: phy id.
3378  * @param0: parameter 0.
3379  * @param1: parameter 1.
3380  */
3381 static void pm8001_hw_event_ack_req(struct pm8001_hba_info *pm8001_ha,
3382 	u32 Qnum, u32 SEA, u32 port_id, u32 phyId, u32 param0, u32 param1)
3383 {
3384 	struct hw_event_ack_req	 payload;
3385 	u32 opc = OPC_INB_SAS_HW_EVENT_ACK;
3386 
3387 	struct inbound_queue_table *circularQ;
3388 
3389 	memset((u8 *)&payload, 0, sizeof(payload));
3390 	circularQ = &pm8001_ha->inbnd_q_tbl[Qnum];
3391 	payload.tag = cpu_to_le32(1);
3392 	payload.sea_phyid_portid = cpu_to_le32(((SEA & 0xFFFF) << 8) |
3393 		((phyId & 0x0F) << 4) | (port_id & 0x0F));
3394 	payload.param0 = cpu_to_le32(param0);
3395 	payload.param1 = cpu_to_le32(param1);
3396 	pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
3397 			sizeof(payload), 0);
3398 }
3399 
3400 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
3401 	u32 phyId, u32 phy_op);
3402 
3403 /**
3404  * hw_event_sas_phy_up -FW tells me a SAS phy up event.
3405  * @pm8001_ha: our hba card information
3406  * @piomb: IO message buffer
3407  */
3408 static void
3409 hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3410 {
3411 	struct hw_event_resp *pPayload =
3412 		(struct hw_event_resp *)(piomb + 4);
3413 	u32 lr_evt_status_phyid_portid =
3414 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3415 	u8 link_rate =
3416 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3417 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3418 	u8 phy_id =
3419 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3420 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3421 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3422 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3423 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3424 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3425 	unsigned long flags;
3426 	u8 deviceType = pPayload->sas_identify.dev_type;
3427 	port->port_state =  portstate;
3428 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3429 	PM8001_MSG_DBG(pm8001_ha,
3430 		pm8001_printk("HW_EVENT_SAS_PHY_UP port id = %d, phy id = %d\n",
3431 		port_id, phy_id));
3432 
3433 	switch (deviceType) {
3434 	case SAS_PHY_UNUSED:
3435 		PM8001_MSG_DBG(pm8001_ha,
3436 			pm8001_printk("device type no device.\n"));
3437 		break;
3438 	case SAS_END_DEVICE:
3439 		PM8001_MSG_DBG(pm8001_ha, pm8001_printk("end device.\n"));
3440 		pm8001_chip_phy_ctl_req(pm8001_ha, phy_id,
3441 			PHY_NOTIFY_ENABLE_SPINUP);
3442 		port->port_attached = 1;
3443 		pm8001_get_lrate_mode(phy, link_rate);
3444 		break;
3445 	case SAS_EDGE_EXPANDER_DEVICE:
3446 		PM8001_MSG_DBG(pm8001_ha,
3447 			pm8001_printk("expander device.\n"));
3448 		port->port_attached = 1;
3449 		pm8001_get_lrate_mode(phy, link_rate);
3450 		break;
3451 	case SAS_FANOUT_EXPANDER_DEVICE:
3452 		PM8001_MSG_DBG(pm8001_ha,
3453 			pm8001_printk("fanout expander device.\n"));
3454 		port->port_attached = 1;
3455 		pm8001_get_lrate_mode(phy, link_rate);
3456 		break;
3457 	default:
3458 		PM8001_DEVIO_DBG(pm8001_ha,
3459 			pm8001_printk("unknown device type(%x)\n", deviceType));
3460 		break;
3461 	}
3462 	phy->phy_type |= PORT_TYPE_SAS;
3463 	phy->identify.device_type = deviceType;
3464 	phy->phy_attached = 1;
3465 	if (phy->identify.device_type == SAS_END_DEVICE)
3466 		phy->identify.target_port_protocols = SAS_PROTOCOL_SSP;
3467 	else if (phy->identify.device_type != SAS_PHY_UNUSED)
3468 		phy->identify.target_port_protocols = SAS_PROTOCOL_SMP;
3469 	phy->sas_phy.oob_mode = SAS_OOB_MODE;
3470 	sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE);
3471 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3472 	memcpy(phy->frame_rcvd, &pPayload->sas_identify,
3473 		sizeof(struct sas_identify_frame)-4);
3474 	phy->frame_rcvd_size = sizeof(struct sas_identify_frame) - 4;
3475 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3476 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3477 	if (pm8001_ha->flags == PM8001F_RUN_TIME)
3478 		mdelay(200);/*delay a moment to wait disk to spinup*/
3479 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3480 }
3481 
3482 /**
3483  * hw_event_sata_phy_up -FW tells me a SATA phy up event.
3484  * @pm8001_ha: our hba card information
3485  * @piomb: IO message buffer
3486  */
3487 static void
3488 hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
3489 {
3490 	struct hw_event_resp *pPayload =
3491 		(struct hw_event_resp *)(piomb + 4);
3492 	u32 lr_evt_status_phyid_portid =
3493 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3494 	u8 link_rate =
3495 		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
3496 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3497 	u8 phy_id =
3498 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3499 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3500 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3501 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3502 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3503 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3504 	unsigned long flags;
3505 	PM8001_DEVIO_DBG(pm8001_ha,
3506 		pm8001_printk("HW_EVENT_SATA_PHY_UP port id = %d,"
3507 		" phy id = %d\n", port_id, phy_id));
3508 	port->port_state =  portstate;
3509 	phy->phy_state = PHY_STATE_LINK_UP_SPC;
3510 	port->port_attached = 1;
3511 	pm8001_get_lrate_mode(phy, link_rate);
3512 	phy->phy_type |= PORT_TYPE_SATA;
3513 	phy->phy_attached = 1;
3514 	phy->sas_phy.oob_mode = SATA_OOB_MODE;
3515 	sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE);
3516 	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
3517 	memcpy(phy->frame_rcvd, ((u8 *)&pPayload->sata_fis - 4),
3518 		sizeof(struct dev_to_host_fis));
3519 	phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
3520 	phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
3521 	phy->identify.device_type = SAS_SATA_DEV;
3522 	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
3523 	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
3524 	pm8001_bytes_dmaed(pm8001_ha, phy_id);
3525 }
3526 
3527 /**
3528  * hw_event_phy_down -we should notify the libsas the phy is down.
3529  * @pm8001_ha: our hba card information
3530  * @piomb: IO message buffer
3531  */
3532 static void
3533 hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb)
3534 {
3535 	struct hw_event_resp *pPayload =
3536 		(struct hw_event_resp *)(piomb + 4);
3537 	u32 lr_evt_status_phyid_portid =
3538 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3539 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3540 	u8 phy_id =
3541 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3542 	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
3543 	u8 portstate = (u8)(npip_portstate & 0x0000000F);
3544 	struct pm8001_port *port = &pm8001_ha->port[port_id];
3545 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3546 	port->port_state =  portstate;
3547 	phy->phy_type = 0;
3548 	phy->identify.device_type = 0;
3549 	phy->phy_attached = 0;
3550 	memset(&phy->dev_sas_addr, 0, SAS_ADDR_SIZE);
3551 	switch (portstate) {
3552 	case PORT_VALID:
3553 		break;
3554 	case PORT_INVALID:
3555 		PM8001_MSG_DBG(pm8001_ha,
3556 			pm8001_printk(" PortInvalid portID %d\n", port_id));
3557 		PM8001_MSG_DBG(pm8001_ha,
3558 			pm8001_printk(" Last phy Down and port invalid\n"));
3559 		port->port_attached = 0;
3560 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3561 			port_id, phy_id, 0, 0);
3562 		break;
3563 	case PORT_IN_RESET:
3564 		PM8001_MSG_DBG(pm8001_ha,
3565 			pm8001_printk(" Port In Reset portID %d\n", port_id));
3566 		break;
3567 	case PORT_NOT_ESTABLISHED:
3568 		PM8001_MSG_DBG(pm8001_ha,
3569 			pm8001_printk(" phy Down and PORT_NOT_ESTABLISHED\n"));
3570 		port->port_attached = 0;
3571 		break;
3572 	case PORT_LOSTCOMM:
3573 		PM8001_MSG_DBG(pm8001_ha,
3574 			pm8001_printk(" phy Down and PORT_LOSTCOMM\n"));
3575 		PM8001_MSG_DBG(pm8001_ha,
3576 			pm8001_printk(" Last phy Down and port invalid\n"));
3577 		port->port_attached = 0;
3578 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
3579 			port_id, phy_id, 0, 0);
3580 		break;
3581 	default:
3582 		port->port_attached = 0;
3583 		PM8001_DEVIO_DBG(pm8001_ha,
3584 			pm8001_printk(" phy Down and(default) = %x\n",
3585 			portstate));
3586 		break;
3587 
3588 	}
3589 }
3590 
3591 /**
3592  * pm8001_mpi_reg_resp -process register device ID response.
3593  * @pm8001_ha: our hba card information
3594  * @piomb: IO message buffer
3595  *
3596  * when sas layer find a device it will notify LLDD, then the driver register
3597  * the domain device to FW, this event is the return device ID which the FW
3598  * has assigned, from now,inter-communication with FW is no longer using the
3599  * SAS address, use device ID which FW assigned.
3600  */
3601 int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3602 {
3603 	u32 status;
3604 	u32 device_id;
3605 	u32 htag;
3606 	struct pm8001_ccb_info *ccb;
3607 	struct pm8001_device *pm8001_dev;
3608 	struct dev_reg_resp *registerRespPayload =
3609 		(struct dev_reg_resp *)(piomb + 4);
3610 
3611 	htag = le32_to_cpu(registerRespPayload->tag);
3612 	ccb = &pm8001_ha->ccb_info[htag];
3613 	pm8001_dev = ccb->device;
3614 	status = le32_to_cpu(registerRespPayload->status);
3615 	device_id = le32_to_cpu(registerRespPayload->device_id);
3616 	PM8001_MSG_DBG(pm8001_ha,
3617 		pm8001_printk(" register device is status = %d\n", status));
3618 	switch (status) {
3619 	case DEVREG_SUCCESS:
3620 		PM8001_MSG_DBG(pm8001_ha, pm8001_printk("DEVREG_SUCCESS\n"));
3621 		pm8001_dev->device_id = device_id;
3622 		break;
3623 	case DEVREG_FAILURE_OUT_OF_RESOURCE:
3624 		PM8001_MSG_DBG(pm8001_ha,
3625 			pm8001_printk("DEVREG_FAILURE_OUT_OF_RESOURCE\n"));
3626 		break;
3627 	case DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED:
3628 		PM8001_MSG_DBG(pm8001_ha,
3629 		   pm8001_printk("DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED\n"));
3630 		break;
3631 	case DEVREG_FAILURE_INVALID_PHY_ID:
3632 		PM8001_MSG_DBG(pm8001_ha,
3633 			pm8001_printk("DEVREG_FAILURE_INVALID_PHY_ID\n"));
3634 		break;
3635 	case DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED:
3636 		PM8001_MSG_DBG(pm8001_ha,
3637 		   pm8001_printk("DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED\n"));
3638 		break;
3639 	case DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE:
3640 		PM8001_MSG_DBG(pm8001_ha,
3641 			pm8001_printk("DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE\n"));
3642 		break;
3643 	case DEVREG_FAILURE_PORT_NOT_VALID_STATE:
3644 		PM8001_MSG_DBG(pm8001_ha,
3645 			pm8001_printk("DEVREG_FAILURE_PORT_NOT_VALID_STATE\n"));
3646 		break;
3647 	case DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID:
3648 		PM8001_MSG_DBG(pm8001_ha,
3649 		       pm8001_printk("DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID\n"));
3650 		break;
3651 	default:
3652 		PM8001_MSG_DBG(pm8001_ha,
3653 			pm8001_printk("DEVREG_FAILURE_DEVICE_TYPE_NOT_SUPPORTED\n"));
3654 		break;
3655 	}
3656 	complete(pm8001_dev->dcompletion);
3657 	ccb->task = NULL;
3658 	ccb->ccb_tag = 0xFFFFFFFF;
3659 	pm8001_tag_free(pm8001_ha, htag);
3660 	return 0;
3661 }
3662 
3663 int pm8001_mpi_dereg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3664 {
3665 	u32 status;
3666 	u32 device_id;
3667 	struct dev_reg_resp *registerRespPayload =
3668 		(struct dev_reg_resp *)(piomb + 4);
3669 
3670 	status = le32_to_cpu(registerRespPayload->status);
3671 	device_id = le32_to_cpu(registerRespPayload->device_id);
3672 	if (status != 0)
3673 		PM8001_MSG_DBG(pm8001_ha,
3674 			pm8001_printk(" deregister device failed ,status = %x"
3675 			", device_id = %x\n", status, device_id));
3676 	return 0;
3677 }
3678 
3679 /**
3680  * fw_flash_update_resp - Response from FW for flash update command.
3681  * @pm8001_ha: our hba card information
3682  * @piomb: IO message buffer
3683  */
3684 int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
3685 		void *piomb)
3686 {
3687 	u32 status;
3688 	struct fw_flash_Update_resp *ppayload =
3689 		(struct fw_flash_Update_resp *)(piomb + 4);
3690 	u32 tag = le32_to_cpu(ppayload->tag);
3691 	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
3692 	status = le32_to_cpu(ppayload->status);
3693 	switch (status) {
3694 	case FLASH_UPDATE_COMPLETE_PENDING_REBOOT:
3695 		PM8001_MSG_DBG(pm8001_ha,
3696 		pm8001_printk(": FLASH_UPDATE_COMPLETE_PENDING_REBOOT\n"));
3697 		break;
3698 	case FLASH_UPDATE_IN_PROGRESS:
3699 		PM8001_MSG_DBG(pm8001_ha,
3700 			pm8001_printk(": FLASH_UPDATE_IN_PROGRESS\n"));
3701 		break;
3702 	case FLASH_UPDATE_HDR_ERR:
3703 		PM8001_MSG_DBG(pm8001_ha,
3704 			pm8001_printk(": FLASH_UPDATE_HDR_ERR\n"));
3705 		break;
3706 	case FLASH_UPDATE_OFFSET_ERR:
3707 		PM8001_MSG_DBG(pm8001_ha,
3708 			pm8001_printk(": FLASH_UPDATE_OFFSET_ERR\n"));
3709 		break;
3710 	case FLASH_UPDATE_CRC_ERR:
3711 		PM8001_MSG_DBG(pm8001_ha,
3712 			pm8001_printk(": FLASH_UPDATE_CRC_ERR\n"));
3713 		break;
3714 	case FLASH_UPDATE_LENGTH_ERR:
3715 		PM8001_MSG_DBG(pm8001_ha,
3716 			pm8001_printk(": FLASH_UPDATE_LENGTH_ERR\n"));
3717 		break;
3718 	case FLASH_UPDATE_HW_ERR:
3719 		PM8001_MSG_DBG(pm8001_ha,
3720 			pm8001_printk(": FLASH_UPDATE_HW_ERR\n"));
3721 		break;
3722 	case FLASH_UPDATE_DNLD_NOT_SUPPORTED:
3723 		PM8001_MSG_DBG(pm8001_ha,
3724 			pm8001_printk(": FLASH_UPDATE_DNLD_NOT_SUPPORTED\n"));
3725 		break;
3726 	case FLASH_UPDATE_DISABLED:
3727 		PM8001_MSG_DBG(pm8001_ha,
3728 			pm8001_printk(": FLASH_UPDATE_DISABLED\n"));
3729 		break;
3730 	default:
3731 		PM8001_DEVIO_DBG(pm8001_ha,
3732 			pm8001_printk("No matched status = %d\n", status));
3733 		break;
3734 	}
3735 	kfree(ccb->fw_control_context);
3736 	ccb->task = NULL;
3737 	ccb->ccb_tag = 0xFFFFFFFF;
3738 	pm8001_tag_free(pm8001_ha, tag);
3739 	complete(pm8001_ha->nvmd_completion);
3740 	return 0;
3741 }
3742 
3743 int pm8001_mpi_general_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
3744 {
3745 	u32 status;
3746 	int i;
3747 	struct general_event_resp *pPayload =
3748 		(struct general_event_resp *)(piomb + 4);
3749 	status = le32_to_cpu(pPayload->status);
3750 	PM8001_MSG_DBG(pm8001_ha,
3751 		pm8001_printk(" status = 0x%x\n", status));
3752 	for (i = 0; i < GENERAL_EVENT_PAYLOAD; i++)
3753 		PM8001_MSG_DBG(pm8001_ha,
3754 			pm8001_printk("inb_IOMB_payload[0x%x] 0x%x,\n", i,
3755 			pPayload->inb_IOMB_payload[i]));
3756 	return 0;
3757 }
3758 
3759 int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
3760 {
3761 	struct sas_task *t;
3762 	struct pm8001_ccb_info *ccb;
3763 	unsigned long flags;
3764 	u32 status ;
3765 	u32 tag, scp;
3766 	struct task_status_struct *ts;
3767 	struct pm8001_device *pm8001_dev;
3768 
3769 	struct task_abort_resp *pPayload =
3770 		(struct task_abort_resp *)(piomb + 4);
3771 
3772 	status = le32_to_cpu(pPayload->status);
3773 	tag = le32_to_cpu(pPayload->tag);
3774 	if (!tag) {
3775 		PM8001_FAIL_DBG(pm8001_ha,
3776 			pm8001_printk(" TAG NULL. RETURNING !!!"));
3777 		return -1;
3778 	}
3779 
3780 	scp = le32_to_cpu(pPayload->scp);
3781 	ccb = &pm8001_ha->ccb_info[tag];
3782 	t = ccb->task;
3783 	pm8001_dev = ccb->device; /* retrieve device */
3784 
3785 	if (!t)	{
3786 		PM8001_FAIL_DBG(pm8001_ha,
3787 			pm8001_printk(" TASK NULL. RETURNING !!!"));
3788 		return -1;
3789 	}
3790 	ts = &t->task_status;
3791 	if (status != 0)
3792 		PM8001_FAIL_DBG(pm8001_ha,
3793 			pm8001_printk("task abort failed status 0x%x ,"
3794 			"tag = 0x%x, scp= 0x%x\n", status, tag, scp));
3795 	switch (status) {
3796 	case IO_SUCCESS:
3797 		PM8001_EH_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS\n"));
3798 		ts->resp = SAS_TASK_COMPLETE;
3799 		ts->stat = SAM_STAT_GOOD;
3800 		break;
3801 	case IO_NOT_VALID:
3802 		PM8001_EH_DBG(pm8001_ha, pm8001_printk("IO_NOT_VALID\n"));
3803 		ts->resp = TMF_RESP_FUNC_FAILED;
3804 		break;
3805 	}
3806 	spin_lock_irqsave(&t->task_state_lock, flags);
3807 	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
3808 	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
3809 	t->task_state_flags |= SAS_TASK_STATE_DONE;
3810 	spin_unlock_irqrestore(&t->task_state_lock, flags);
3811 	pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
3812 	mb();
3813 
3814 	if (pm8001_dev->id & NCQ_ABORT_ALL_FLAG) {
3815 		pm8001_tag_free(pm8001_ha, tag);
3816 		sas_free_task(t);
3817 		/* clear the flag */
3818 		pm8001_dev->id &= 0xBFFFFFFF;
3819 	} else
3820 		t->task_done(t);
3821 
3822 	return 0;
3823 }
3824 
3825 /**
3826  * mpi_hw_event -The hw event has come.
3827  * @pm8001_ha: our hba card information
3828  * @piomb: IO message buffer
3829  */
3830 static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void* piomb)
3831 {
3832 	unsigned long flags;
3833 	struct hw_event_resp *pPayload =
3834 		(struct hw_event_resp *)(piomb + 4);
3835 	u32 lr_evt_status_phyid_portid =
3836 		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
3837 	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
3838 	u8 phy_id =
3839 		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
3840 	u16 eventType =
3841 		(u16)((lr_evt_status_phyid_portid & 0x00FFFF00) >> 8);
3842 	u8 status =
3843 		(u8)((lr_evt_status_phyid_portid & 0x0F000000) >> 24);
3844 	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
3845 	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
3846 	struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
3847 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
3848 		"SPC HW event for portid:%d, phyid:%d, event:%x, status:%x\n",
3849 		port_id, phy_id, eventType, status));
3850 	switch (eventType) {
3851 	case HW_EVENT_PHY_START_STATUS:
3852 		PM8001_MSG_DBG(pm8001_ha,
3853 		pm8001_printk("HW_EVENT_PHY_START_STATUS"
3854 			" status = %x\n", status));
3855 		if (status == 0) {
3856 			phy->phy_state = 1;
3857 			if (pm8001_ha->flags == PM8001F_RUN_TIME &&
3858 					phy->enable_completion != NULL)
3859 				complete(phy->enable_completion);
3860 		}
3861 		break;
3862 	case HW_EVENT_SAS_PHY_UP:
3863 		PM8001_MSG_DBG(pm8001_ha,
3864 			pm8001_printk("HW_EVENT_PHY_START_STATUS\n"));
3865 		hw_event_sas_phy_up(pm8001_ha, piomb);
3866 		break;
3867 	case HW_EVENT_SATA_PHY_UP:
3868 		PM8001_MSG_DBG(pm8001_ha,
3869 			pm8001_printk("HW_EVENT_SATA_PHY_UP\n"));
3870 		hw_event_sata_phy_up(pm8001_ha, piomb);
3871 		break;
3872 	case HW_EVENT_PHY_STOP_STATUS:
3873 		PM8001_MSG_DBG(pm8001_ha,
3874 			pm8001_printk("HW_EVENT_PHY_STOP_STATUS "
3875 			"status = %x\n", status));
3876 		if (status == 0)
3877 			phy->phy_state = 0;
3878 		break;
3879 	case HW_EVENT_SATA_SPINUP_HOLD:
3880 		PM8001_MSG_DBG(pm8001_ha,
3881 			pm8001_printk("HW_EVENT_SATA_SPINUP_HOLD\n"));
3882 		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_SPINUP_HOLD);
3883 		break;
3884 	case HW_EVENT_PHY_DOWN:
3885 		PM8001_MSG_DBG(pm8001_ha,
3886 			pm8001_printk("HW_EVENT_PHY_DOWN\n"));
3887 		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL);
3888 		phy->phy_attached = 0;
3889 		phy->phy_state = 0;
3890 		hw_event_phy_down(pm8001_ha, piomb);
3891 		break;
3892 	case HW_EVENT_PORT_INVALID:
3893 		PM8001_MSG_DBG(pm8001_ha,
3894 			pm8001_printk("HW_EVENT_PORT_INVALID\n"));
3895 		sas_phy_disconnected(sas_phy);
3896 		phy->phy_attached = 0;
3897 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3898 		break;
3899 	/* the broadcast change primitive received, tell the LIBSAS this event
3900 	to revalidate the sas domain*/
3901 	case HW_EVENT_BROADCAST_CHANGE:
3902 		PM8001_MSG_DBG(pm8001_ha,
3903 			pm8001_printk("HW_EVENT_BROADCAST_CHANGE\n"));
3904 		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_BROADCAST_CHANGE,
3905 			port_id, phy_id, 1, 0);
3906 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3907 		sas_phy->sas_prim = HW_EVENT_BROADCAST_CHANGE;
3908 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3909 		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
3910 		break;
3911 	case HW_EVENT_PHY_ERROR:
3912 		PM8001_MSG_DBG(pm8001_ha,
3913 			pm8001_printk("HW_EVENT_PHY_ERROR\n"));
3914 		sas_phy_disconnected(&phy->sas_phy);
3915 		phy->phy_attached = 0;
3916 		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_ERROR);
3917 		break;
3918 	case HW_EVENT_BROADCAST_EXP:
3919 		PM8001_MSG_DBG(pm8001_ha,
3920 			pm8001_printk("HW_EVENT_BROADCAST_EXP\n"));
3921 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3922 		sas_phy->sas_prim = HW_EVENT_BROADCAST_EXP;
3923 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3924 		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
3925 		break;
3926 	case HW_EVENT_LINK_ERR_INVALID_DWORD:
3927 		PM8001_MSG_DBG(pm8001_ha,
3928 			pm8001_printk("HW_EVENT_LINK_ERR_INVALID_DWORD\n"));
3929 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3930 			HW_EVENT_LINK_ERR_INVALID_DWORD, port_id, phy_id, 0, 0);
3931 		sas_phy_disconnected(sas_phy);
3932 		phy->phy_attached = 0;
3933 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3934 		break;
3935 	case HW_EVENT_LINK_ERR_DISPARITY_ERROR:
3936 		PM8001_MSG_DBG(pm8001_ha,
3937 			pm8001_printk("HW_EVENT_LINK_ERR_DISPARITY_ERROR\n"));
3938 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3939 			HW_EVENT_LINK_ERR_DISPARITY_ERROR,
3940 			port_id, phy_id, 0, 0);
3941 		sas_phy_disconnected(sas_phy);
3942 		phy->phy_attached = 0;
3943 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3944 		break;
3945 	case HW_EVENT_LINK_ERR_CODE_VIOLATION:
3946 		PM8001_MSG_DBG(pm8001_ha,
3947 			pm8001_printk("HW_EVENT_LINK_ERR_CODE_VIOLATION\n"));
3948 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3949 			HW_EVENT_LINK_ERR_CODE_VIOLATION,
3950 			port_id, phy_id, 0, 0);
3951 		sas_phy_disconnected(sas_phy);
3952 		phy->phy_attached = 0;
3953 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3954 		break;
3955 	case HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH:
3956 		PM8001_MSG_DBG(pm8001_ha,
3957 		      pm8001_printk("HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH\n"));
3958 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3959 			HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH,
3960 			port_id, phy_id, 0, 0);
3961 		sas_phy_disconnected(sas_phy);
3962 		phy->phy_attached = 0;
3963 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3964 		break;
3965 	case HW_EVENT_MALFUNCTION:
3966 		PM8001_MSG_DBG(pm8001_ha,
3967 			pm8001_printk("HW_EVENT_MALFUNCTION\n"));
3968 		break;
3969 	case HW_EVENT_BROADCAST_SES:
3970 		PM8001_MSG_DBG(pm8001_ha,
3971 			pm8001_printk("HW_EVENT_BROADCAST_SES\n"));
3972 		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
3973 		sas_phy->sas_prim = HW_EVENT_BROADCAST_SES;
3974 		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
3975 		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
3976 		break;
3977 	case HW_EVENT_INBOUND_CRC_ERROR:
3978 		PM8001_MSG_DBG(pm8001_ha,
3979 			pm8001_printk("HW_EVENT_INBOUND_CRC_ERROR\n"));
3980 		pm8001_hw_event_ack_req(pm8001_ha, 0,
3981 			HW_EVENT_INBOUND_CRC_ERROR,
3982 			port_id, phy_id, 0, 0);
3983 		break;
3984 	case HW_EVENT_HARD_RESET_RECEIVED:
3985 		PM8001_MSG_DBG(pm8001_ha,
3986 			pm8001_printk("HW_EVENT_HARD_RESET_RECEIVED\n"));
3987 		sas_ha->notify_port_event(sas_phy, PORTE_HARD_RESET);
3988 		break;
3989 	case HW_EVENT_ID_FRAME_TIMEOUT:
3990 		PM8001_MSG_DBG(pm8001_ha,
3991 			pm8001_printk("HW_EVENT_ID_FRAME_TIMEOUT\n"));
3992 		sas_phy_disconnected(sas_phy);
3993 		phy->phy_attached = 0;
3994 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
3995 		break;
3996 	case HW_EVENT_LINK_ERR_PHY_RESET_FAILED:
3997 		PM8001_MSG_DBG(pm8001_ha,
3998 			pm8001_printk("HW_EVENT_LINK_ERR_PHY_RESET_FAILED\n"));
3999 		pm8001_hw_event_ack_req(pm8001_ha, 0,
4000 			HW_EVENT_LINK_ERR_PHY_RESET_FAILED,
4001 			port_id, phy_id, 0, 0);
4002 		sas_phy_disconnected(sas_phy);
4003 		phy->phy_attached = 0;
4004 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
4005 		break;
4006 	case HW_EVENT_PORT_RESET_TIMER_TMO:
4007 		PM8001_MSG_DBG(pm8001_ha,
4008 			pm8001_printk("HW_EVENT_PORT_RESET_TIMER_TMO\n"));
4009 		sas_phy_disconnected(sas_phy);
4010 		phy->phy_attached = 0;
4011 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
4012 		break;
4013 	case HW_EVENT_PORT_RECOVERY_TIMER_TMO:
4014 		PM8001_MSG_DBG(pm8001_ha,
4015 			pm8001_printk("HW_EVENT_PORT_RECOVERY_TIMER_TMO\n"));
4016 		sas_phy_disconnected(sas_phy);
4017 		phy->phy_attached = 0;
4018 		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
4019 		break;
4020 	case HW_EVENT_PORT_RECOVER:
4021 		PM8001_MSG_DBG(pm8001_ha,
4022 			pm8001_printk("HW_EVENT_PORT_RECOVER\n"));
4023 		break;
4024 	case HW_EVENT_PORT_RESET_COMPLETE:
4025 		PM8001_MSG_DBG(pm8001_ha,
4026 			pm8001_printk("HW_EVENT_PORT_RESET_COMPLETE\n"));
4027 		break;
4028 	case EVENT_BROADCAST_ASYNCH_EVENT:
4029 		PM8001_MSG_DBG(pm8001_ha,
4030 			pm8001_printk("EVENT_BROADCAST_ASYNCH_EVENT\n"));
4031 		break;
4032 	default:
4033 		PM8001_DEVIO_DBG(pm8001_ha,
4034 			pm8001_printk("Unknown event type = %x\n", eventType));
4035 		break;
4036 	}
4037 	return 0;
4038 }
4039 
4040 /**
4041  * process_one_iomb - process one outbound Queue memory block
4042  * @pm8001_ha: our hba card information
4043  * @piomb: IO message buffer
4044  */
4045 static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb)
4046 {
4047 	__le32 pHeader = *(__le32 *)piomb;
4048 	u8 opc = (u8)((le32_to_cpu(pHeader)) & 0xFFF);
4049 
4050 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("process_one_iomb:"));
4051 
4052 	switch (opc) {
4053 	case OPC_OUB_ECHO:
4054 		PM8001_MSG_DBG(pm8001_ha, pm8001_printk("OPC_OUB_ECHO\n"));
4055 		break;
4056 	case OPC_OUB_HW_EVENT:
4057 		PM8001_MSG_DBG(pm8001_ha,
4058 			pm8001_printk("OPC_OUB_HW_EVENT\n"));
4059 		mpi_hw_event(pm8001_ha, piomb);
4060 		break;
4061 	case OPC_OUB_SSP_COMP:
4062 		PM8001_MSG_DBG(pm8001_ha,
4063 			pm8001_printk("OPC_OUB_SSP_COMP\n"));
4064 		mpi_ssp_completion(pm8001_ha, piomb);
4065 		break;
4066 	case OPC_OUB_SMP_COMP:
4067 		PM8001_MSG_DBG(pm8001_ha,
4068 			pm8001_printk("OPC_OUB_SMP_COMP\n"));
4069 		mpi_smp_completion(pm8001_ha, piomb);
4070 		break;
4071 	case OPC_OUB_LOCAL_PHY_CNTRL:
4072 		PM8001_MSG_DBG(pm8001_ha,
4073 			pm8001_printk("OPC_OUB_LOCAL_PHY_CNTRL\n"));
4074 		pm8001_mpi_local_phy_ctl(pm8001_ha, piomb);
4075 		break;
4076 	case OPC_OUB_DEV_REGIST:
4077 		PM8001_MSG_DBG(pm8001_ha,
4078 			pm8001_printk("OPC_OUB_DEV_REGIST\n"));
4079 		pm8001_mpi_reg_resp(pm8001_ha, piomb);
4080 		break;
4081 	case OPC_OUB_DEREG_DEV:
4082 		PM8001_MSG_DBG(pm8001_ha,
4083 			pm8001_printk("unregister the device\n"));
4084 		pm8001_mpi_dereg_resp(pm8001_ha, piomb);
4085 		break;
4086 	case OPC_OUB_GET_DEV_HANDLE:
4087 		PM8001_MSG_DBG(pm8001_ha,
4088 			pm8001_printk("OPC_OUB_GET_DEV_HANDLE\n"));
4089 		break;
4090 	case OPC_OUB_SATA_COMP:
4091 		PM8001_MSG_DBG(pm8001_ha,
4092 			pm8001_printk("OPC_OUB_SATA_COMP\n"));
4093 		mpi_sata_completion(pm8001_ha, piomb);
4094 		break;
4095 	case OPC_OUB_SATA_EVENT:
4096 		PM8001_MSG_DBG(pm8001_ha,
4097 			pm8001_printk("OPC_OUB_SATA_EVENT\n"));
4098 		mpi_sata_event(pm8001_ha, piomb);
4099 		break;
4100 	case OPC_OUB_SSP_EVENT:
4101 		PM8001_MSG_DBG(pm8001_ha,
4102 			pm8001_printk("OPC_OUB_SSP_EVENT\n"));
4103 		mpi_ssp_event(pm8001_ha, piomb);
4104 		break;
4105 	case OPC_OUB_DEV_HANDLE_ARRIV:
4106 		PM8001_MSG_DBG(pm8001_ha,
4107 			pm8001_printk("OPC_OUB_DEV_HANDLE_ARRIV\n"));
4108 		/*This is for target*/
4109 		break;
4110 	case OPC_OUB_SSP_RECV_EVENT:
4111 		PM8001_MSG_DBG(pm8001_ha,
4112 			pm8001_printk("OPC_OUB_SSP_RECV_EVENT\n"));
4113 		/*This is for target*/
4114 		break;
4115 	case OPC_OUB_DEV_INFO:
4116 		PM8001_MSG_DBG(pm8001_ha,
4117 			pm8001_printk("OPC_OUB_DEV_INFO\n"));
4118 		break;
4119 	case OPC_OUB_FW_FLASH_UPDATE:
4120 		PM8001_MSG_DBG(pm8001_ha,
4121 			pm8001_printk("OPC_OUB_FW_FLASH_UPDATE\n"));
4122 		pm8001_mpi_fw_flash_update_resp(pm8001_ha, piomb);
4123 		break;
4124 	case OPC_OUB_GPIO_RESPONSE:
4125 		PM8001_MSG_DBG(pm8001_ha,
4126 			pm8001_printk("OPC_OUB_GPIO_RESPONSE\n"));
4127 		break;
4128 	case OPC_OUB_GPIO_EVENT:
4129 		PM8001_MSG_DBG(pm8001_ha,
4130 			pm8001_printk("OPC_OUB_GPIO_EVENT\n"));
4131 		break;
4132 	case OPC_OUB_GENERAL_EVENT:
4133 		PM8001_MSG_DBG(pm8001_ha,
4134 			pm8001_printk("OPC_OUB_GENERAL_EVENT\n"));
4135 		pm8001_mpi_general_event(pm8001_ha, piomb);
4136 		break;
4137 	case OPC_OUB_SSP_ABORT_RSP:
4138 		PM8001_MSG_DBG(pm8001_ha,
4139 			pm8001_printk("OPC_OUB_SSP_ABORT_RSP\n"));
4140 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4141 		break;
4142 	case OPC_OUB_SATA_ABORT_RSP:
4143 		PM8001_MSG_DBG(pm8001_ha,
4144 			pm8001_printk("OPC_OUB_SATA_ABORT_RSP\n"));
4145 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4146 		break;
4147 	case OPC_OUB_SAS_DIAG_MODE_START_END:
4148 		PM8001_MSG_DBG(pm8001_ha,
4149 			pm8001_printk("OPC_OUB_SAS_DIAG_MODE_START_END\n"));
4150 		break;
4151 	case OPC_OUB_SAS_DIAG_EXECUTE:
4152 		PM8001_MSG_DBG(pm8001_ha,
4153 			pm8001_printk("OPC_OUB_SAS_DIAG_EXECUTE\n"));
4154 		break;
4155 	case OPC_OUB_GET_TIME_STAMP:
4156 		PM8001_MSG_DBG(pm8001_ha,
4157 			pm8001_printk("OPC_OUB_GET_TIME_STAMP\n"));
4158 		break;
4159 	case OPC_OUB_SAS_HW_EVENT_ACK:
4160 		PM8001_MSG_DBG(pm8001_ha,
4161 			pm8001_printk("OPC_OUB_SAS_HW_EVENT_ACK\n"));
4162 		break;
4163 	case OPC_OUB_PORT_CONTROL:
4164 		PM8001_MSG_DBG(pm8001_ha,
4165 			pm8001_printk("OPC_OUB_PORT_CONTROL\n"));
4166 		break;
4167 	case OPC_OUB_SMP_ABORT_RSP:
4168 		PM8001_MSG_DBG(pm8001_ha,
4169 			pm8001_printk("OPC_OUB_SMP_ABORT_RSP\n"));
4170 		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
4171 		break;
4172 	case OPC_OUB_GET_NVMD_DATA:
4173 		PM8001_MSG_DBG(pm8001_ha,
4174 			pm8001_printk("OPC_OUB_GET_NVMD_DATA\n"));
4175 		pm8001_mpi_get_nvmd_resp(pm8001_ha, piomb);
4176 		break;
4177 	case OPC_OUB_SET_NVMD_DATA:
4178 		PM8001_MSG_DBG(pm8001_ha,
4179 			pm8001_printk("OPC_OUB_SET_NVMD_DATA\n"));
4180 		pm8001_mpi_set_nvmd_resp(pm8001_ha, piomb);
4181 		break;
4182 	case OPC_OUB_DEVICE_HANDLE_REMOVAL:
4183 		PM8001_MSG_DBG(pm8001_ha,
4184 			pm8001_printk("OPC_OUB_DEVICE_HANDLE_REMOVAL\n"));
4185 		break;
4186 	case OPC_OUB_SET_DEVICE_STATE:
4187 		PM8001_MSG_DBG(pm8001_ha,
4188 			pm8001_printk("OPC_OUB_SET_DEVICE_STATE\n"));
4189 		pm8001_mpi_set_dev_state_resp(pm8001_ha, piomb);
4190 		break;
4191 	case OPC_OUB_GET_DEVICE_STATE:
4192 		PM8001_MSG_DBG(pm8001_ha,
4193 			pm8001_printk("OPC_OUB_GET_DEVICE_STATE\n"));
4194 		break;
4195 	case OPC_OUB_SET_DEV_INFO:
4196 		PM8001_MSG_DBG(pm8001_ha,
4197 			pm8001_printk("OPC_OUB_SET_DEV_INFO\n"));
4198 		break;
4199 	case OPC_OUB_SAS_RE_INITIALIZE:
4200 		PM8001_MSG_DBG(pm8001_ha,
4201 			pm8001_printk("OPC_OUB_SAS_RE_INITIALIZE\n"));
4202 		break;
4203 	default:
4204 		PM8001_DEVIO_DBG(pm8001_ha,
4205 			pm8001_printk("Unknown outbound Queue IOMB OPC = %x\n",
4206 			opc));
4207 		break;
4208 	}
4209 }
4210 
4211 static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec)
4212 {
4213 	struct outbound_queue_table *circularQ;
4214 	void *pMsg1 = NULL;
4215 	u8 bc;
4216 	u32 ret = MPI_IO_STATUS_FAIL;
4217 	unsigned long flags;
4218 
4219 	spin_lock_irqsave(&pm8001_ha->lock, flags);
4220 	circularQ = &pm8001_ha->outbnd_q_tbl[vec];
4221 	do {
4222 		ret = pm8001_mpi_msg_consume(pm8001_ha, circularQ, &pMsg1, &bc);
4223 		if (MPI_IO_STATUS_SUCCESS == ret) {
4224 			/* process the outbound message */
4225 			process_one_iomb(pm8001_ha, (void *)(pMsg1 - 4));
4226 			/* free the message from the outbound circular buffer */
4227 			pm8001_mpi_msg_free_set(pm8001_ha, pMsg1,
4228 							circularQ, bc);
4229 		}
4230 		if (MPI_IO_STATUS_BUSY == ret) {
4231 			/* Update the producer index from SPC */
4232 			circularQ->producer_index =
4233 				cpu_to_le32(pm8001_read_32(circularQ->pi_virt));
4234 			if (le32_to_cpu(circularQ->producer_index) ==
4235 				circularQ->consumer_idx)
4236 				/* OQ is empty */
4237 				break;
4238 		}
4239 	} while (1);
4240 	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
4241 	return ret;
4242 }
4243 
4244 /* DMA_... to our direction translation. */
4245 static const u8 data_dir_flags[] = {
4246 	[DMA_BIDIRECTIONAL]	= DATA_DIR_BYRECIPIENT,	/* UNSPECIFIED */
4247 	[DMA_TO_DEVICE]		= DATA_DIR_OUT,		/* OUTBOUND */
4248 	[DMA_FROM_DEVICE]	= DATA_DIR_IN,		/* INBOUND */
4249 	[DMA_NONE]		= DATA_DIR_NONE,	/* NO TRANSFER */
4250 };
4251 void
4252 pm8001_chip_make_sg(struct scatterlist *scatter, int nr, void *prd)
4253 {
4254 	int i;
4255 	struct scatterlist *sg;
4256 	struct pm8001_prd *buf_prd = prd;
4257 
4258 	for_each_sg(scatter, sg, nr, i) {
4259 		buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
4260 		buf_prd->im_len.len = cpu_to_le32(sg_dma_len(sg));
4261 		buf_prd->im_len.e = 0;
4262 		buf_prd++;
4263 	}
4264 }
4265 
4266 static void build_smp_cmd(u32 deviceID, __le32 hTag, struct smp_req *psmp_cmd)
4267 {
4268 	psmp_cmd->tag = hTag;
4269 	psmp_cmd->device_id = cpu_to_le32(deviceID);
4270 	psmp_cmd->len_ip_ir = cpu_to_le32(1|(1 << 1));
4271 }
4272 
4273 /**
4274  * pm8001_chip_smp_req - send a SMP task to FW
4275  * @pm8001_ha: our hba card information.
4276  * @ccb: the ccb information this request used.
4277  */
4278 static int pm8001_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
4279 	struct pm8001_ccb_info *ccb)
4280 {
4281 	int elem, rc;
4282 	struct sas_task *task = ccb->task;
4283 	struct domain_device *dev = task->dev;
4284 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4285 	struct scatterlist *sg_req, *sg_resp;
4286 	u32 req_len, resp_len;
4287 	struct smp_req smp_cmd;
4288 	u32 opc;
4289 	struct inbound_queue_table *circularQ;
4290 
4291 	memset(&smp_cmd, 0, sizeof(smp_cmd));
4292 	/*
4293 	 * DMA-map SMP request, response buffers
4294 	 */
4295 	sg_req = &task->smp_task.smp_req;
4296 	elem = dma_map_sg(pm8001_ha->dev, sg_req, 1, DMA_TO_DEVICE);
4297 	if (!elem)
4298 		return -ENOMEM;
4299 	req_len = sg_dma_len(sg_req);
4300 
4301 	sg_resp = &task->smp_task.smp_resp;
4302 	elem = dma_map_sg(pm8001_ha->dev, sg_resp, 1, DMA_FROM_DEVICE);
4303 	if (!elem) {
4304 		rc = -ENOMEM;
4305 		goto err_out;
4306 	}
4307 	resp_len = sg_dma_len(sg_resp);
4308 	/* must be in dwords */
4309 	if ((req_len & 0x3) || (resp_len & 0x3)) {
4310 		rc = -EINVAL;
4311 		goto err_out_2;
4312 	}
4313 
4314 	opc = OPC_INB_SMP_REQUEST;
4315 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4316 	smp_cmd.tag = cpu_to_le32(ccb->ccb_tag);
4317 	smp_cmd.long_smp_req.long_req_addr =
4318 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req));
4319 	smp_cmd.long_smp_req.long_req_size =
4320 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-4);
4321 	smp_cmd.long_smp_req.long_resp_addr =
4322 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_resp));
4323 	smp_cmd.long_smp_req.long_resp_size =
4324 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4);
4325 	build_smp_cmd(pm8001_dev->device_id, smp_cmd.tag, &smp_cmd);
4326 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc,
4327 			&smp_cmd, sizeof(smp_cmd), 0);
4328 	if (rc)
4329 		goto err_out_2;
4330 
4331 	return 0;
4332 
4333 err_out_2:
4334 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_resp, 1,
4335 			DMA_FROM_DEVICE);
4336 err_out:
4337 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_req, 1,
4338 			DMA_TO_DEVICE);
4339 	return rc;
4340 }
4341 
4342 /**
4343  * pm8001_chip_ssp_io_req - send a SSP task to FW
4344  * @pm8001_ha: our hba card information.
4345  * @ccb: the ccb information this request used.
4346  */
4347 static int pm8001_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
4348 	struct pm8001_ccb_info *ccb)
4349 {
4350 	struct sas_task *task = ccb->task;
4351 	struct domain_device *dev = task->dev;
4352 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4353 	struct ssp_ini_io_start_req ssp_cmd;
4354 	u32 tag = ccb->ccb_tag;
4355 	int ret;
4356 	u64 phys_addr;
4357 	struct inbound_queue_table *circularQ;
4358 	u32 opc = OPC_INB_SSPINIIOSTART;
4359 	memset(&ssp_cmd, 0, sizeof(ssp_cmd));
4360 	memcpy(ssp_cmd.ssp_iu.lun, task->ssp_task.LUN, 8);
4361 	ssp_cmd.dir_m_tlr =
4362 		cpu_to_le32(data_dir_flags[task->data_dir] << 8 | 0x0);/*0 for
4363 	SAS 1.1 compatible TLR*/
4364 	ssp_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4365 	ssp_cmd.device_id = cpu_to_le32(pm8001_dev->device_id);
4366 	ssp_cmd.tag = cpu_to_le32(tag);
4367 	if (task->ssp_task.enable_first_burst)
4368 		ssp_cmd.ssp_iu.efb_prio_attr |= 0x80;
4369 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_prio << 3);
4370 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_attr & 7);
4371 	memcpy(ssp_cmd.ssp_iu.cdb, task->ssp_task.cmd->cmnd,
4372 	       task->ssp_task.cmd->cmd_len);
4373 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4374 
4375 	/* fill in PRD (scatter/gather) table, if any */
4376 	if (task->num_scatter > 1) {
4377 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4378 		phys_addr = ccb->ccb_dma_handle;
4379 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(phys_addr));
4380 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(phys_addr));
4381 		ssp_cmd.esgl = cpu_to_le32(1<<31);
4382 	} else if (task->num_scatter == 1) {
4383 		u64 dma_addr = sg_dma_address(task->scatter);
4384 		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(dma_addr));
4385 		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(dma_addr));
4386 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4387 		ssp_cmd.esgl = 0;
4388 	} else if (task->num_scatter == 0) {
4389 		ssp_cmd.addr_low = 0;
4390 		ssp_cmd.addr_high = 0;
4391 		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
4392 		ssp_cmd.esgl = 0;
4393 	}
4394 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &ssp_cmd,
4395 			sizeof(ssp_cmd), 0);
4396 	return ret;
4397 }
4398 
4399 static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
4400 	struct pm8001_ccb_info *ccb)
4401 {
4402 	struct sas_task *task = ccb->task;
4403 	struct domain_device *dev = task->dev;
4404 	struct pm8001_device *pm8001_ha_dev = dev->lldd_dev;
4405 	u32 tag = ccb->ccb_tag;
4406 	int ret;
4407 	struct sata_start_req sata_cmd;
4408 	u32 hdr_tag, ncg_tag = 0;
4409 	u64 phys_addr;
4410 	u32 ATAP = 0x0;
4411 	u32 dir;
4412 	struct inbound_queue_table *circularQ;
4413 	unsigned long flags;
4414 	u32  opc = OPC_INB_SATA_HOST_OPSTART;
4415 	memset(&sata_cmd, 0, sizeof(sata_cmd));
4416 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4417 	if (task->data_dir == DMA_NONE) {
4418 		ATAP = 0x04;  /* no data*/
4419 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("no data\n"));
4420 	} else if (likely(!task->ata_task.device_control_reg_update)) {
4421 		if (task->ata_task.dma_xfer) {
4422 			ATAP = 0x06; /* DMA */
4423 			PM8001_IO_DBG(pm8001_ha, pm8001_printk("DMA\n"));
4424 		} else {
4425 			ATAP = 0x05; /* PIO*/
4426 			PM8001_IO_DBG(pm8001_ha, pm8001_printk("PIO\n"));
4427 		}
4428 		if (task->ata_task.use_ncq &&
4429 			dev->sata_dev.class != ATA_DEV_ATAPI) {
4430 			ATAP = 0x07; /* FPDMA */
4431 			PM8001_IO_DBG(pm8001_ha, pm8001_printk("FPDMA\n"));
4432 		}
4433 	}
4434 	if (task->ata_task.use_ncq && pm8001_get_ncq_tag(task, &hdr_tag)) {
4435 		task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
4436 		ncg_tag = hdr_tag;
4437 	}
4438 	dir = data_dir_flags[task->data_dir] << 8;
4439 	sata_cmd.tag = cpu_to_le32(tag);
4440 	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
4441 	sata_cmd.data_len = cpu_to_le32(task->total_xfer_len);
4442 	sata_cmd.ncqtag_atap_dir_m =
4443 		cpu_to_le32(((ncg_tag & 0xff)<<16)|((ATAP & 0x3f) << 10) | dir);
4444 	sata_cmd.sata_fis = task->ata_task.fis;
4445 	if (likely(!task->ata_task.device_control_reg_update))
4446 		sata_cmd.sata_fis.flags |= 0x80;/* C=1: update ATA cmd reg */
4447 	sata_cmd.sata_fis.flags &= 0xF0;/* PM_PORT field shall be 0 */
4448 	/* fill in PRD (scatter/gather) table, if any */
4449 	if (task->num_scatter > 1) {
4450 		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
4451 		phys_addr = ccb->ccb_dma_handle;
4452 		sata_cmd.addr_low = lower_32_bits(phys_addr);
4453 		sata_cmd.addr_high = upper_32_bits(phys_addr);
4454 		sata_cmd.esgl = cpu_to_le32(1 << 31);
4455 	} else if (task->num_scatter == 1) {
4456 		u64 dma_addr = sg_dma_address(task->scatter);
4457 		sata_cmd.addr_low = lower_32_bits(dma_addr);
4458 		sata_cmd.addr_high = upper_32_bits(dma_addr);
4459 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4460 		sata_cmd.esgl = 0;
4461 	} else if (task->num_scatter == 0) {
4462 		sata_cmd.addr_low = 0;
4463 		sata_cmd.addr_high = 0;
4464 		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
4465 		sata_cmd.esgl = 0;
4466 	}
4467 
4468 	/* Check for read log for failed drive and return */
4469 	if (sata_cmd.sata_fis.command == 0x2f) {
4470 		if (((pm8001_ha_dev->id & NCQ_READ_LOG_FLAG) ||
4471 			(pm8001_ha_dev->id & NCQ_ABORT_ALL_FLAG) ||
4472 			(pm8001_ha_dev->id & NCQ_2ND_RLE_FLAG))) {
4473 			struct task_status_struct *ts;
4474 
4475 			pm8001_ha_dev->id &= 0xDFFFFFFF;
4476 			ts = &task->task_status;
4477 
4478 			spin_lock_irqsave(&task->task_state_lock, flags);
4479 			ts->resp = SAS_TASK_COMPLETE;
4480 			ts->stat = SAM_STAT_GOOD;
4481 			task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
4482 			task->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
4483 			task->task_state_flags |= SAS_TASK_STATE_DONE;
4484 			if (unlikely((task->task_state_flags &
4485 					SAS_TASK_STATE_ABORTED))) {
4486 				spin_unlock_irqrestore(&task->task_state_lock,
4487 							flags);
4488 				PM8001_FAIL_DBG(pm8001_ha,
4489 					pm8001_printk("task 0x%p resp 0x%x "
4490 					" stat 0x%x but aborted by upper layer "
4491 					"\n", task, ts->resp, ts->stat));
4492 				pm8001_ccb_task_free(pm8001_ha, task, ccb, tag);
4493 			} else {
4494 				spin_unlock_irqrestore(&task->task_state_lock,
4495 							flags);
4496 				pm8001_ccb_task_free_done(pm8001_ha, task,
4497 								ccb, tag);
4498 				return 0;
4499 			}
4500 		}
4501 	}
4502 
4503 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
4504 			sizeof(sata_cmd), 0);
4505 	return ret;
4506 }
4507 
4508 /**
4509  * pm8001_chip_phy_start_req - start phy via PHY_START COMMAND
4510  * @pm8001_ha: our hba card information.
4511  * @phy_id: the phy id which we wanted to start up.
4512  */
4513 static int
4514 pm8001_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id)
4515 {
4516 	struct phy_start_req payload;
4517 	struct inbound_queue_table *circularQ;
4518 	int ret;
4519 	u32 tag = 0x01;
4520 	u32 opcode = OPC_INB_PHYSTART;
4521 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4522 	memset(&payload, 0, sizeof(payload));
4523 	payload.tag = cpu_to_le32(tag);
4524 	/*
4525 	 ** [0:7]   PHY Identifier
4526 	 ** [8:11]  link rate 1.5G, 3G, 6G
4527 	 ** [12:13] link mode 01b SAS mode; 10b SATA mode; 11b both
4528 	 ** [14]    0b disable spin up hold; 1b enable spin up hold
4529 	 */
4530 	payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE |
4531 		LINKMODE_AUTO |	LINKRATE_15 |
4532 		LINKRATE_30 | LINKRATE_60 | phy_id);
4533 	payload.sas_identify.dev_type = SAS_END_DEVICE;
4534 	payload.sas_identify.initiator_bits = SAS_PROTOCOL_ALL;
4535 	memcpy(payload.sas_identify.sas_addr,
4536 		pm8001_ha->sas_addr, SAS_ADDR_SIZE);
4537 	payload.sas_identify.phy_id = phy_id;
4538 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
4539 			sizeof(payload), 0);
4540 	return ret;
4541 }
4542 
4543 /**
4544  * pm8001_chip_phy_stop_req - start phy via PHY_STOP COMMAND
4545  * @pm8001_ha: our hba card information.
4546  * @phy_id: the phy id which we wanted to start up.
4547  */
4548 static int pm8001_chip_phy_stop_req(struct pm8001_hba_info *pm8001_ha,
4549 				    u8 phy_id)
4550 {
4551 	struct phy_stop_req payload;
4552 	struct inbound_queue_table *circularQ;
4553 	int ret;
4554 	u32 tag = 0x01;
4555 	u32 opcode = OPC_INB_PHYSTOP;
4556 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4557 	memset(&payload, 0, sizeof(payload));
4558 	payload.tag = cpu_to_le32(tag);
4559 	payload.phy_id = cpu_to_le32(phy_id);
4560 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
4561 			sizeof(payload), 0);
4562 	return ret;
4563 }
4564 
4565 /*
4566  * see comments on pm8001_mpi_reg_resp.
4567  */
4568 static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
4569 	struct pm8001_device *pm8001_dev, u32 flag)
4570 {
4571 	struct reg_dev_req payload;
4572 	u32	opc;
4573 	u32 stp_sspsmp_sata = 0x4;
4574 	struct inbound_queue_table *circularQ;
4575 	u32 linkrate, phy_id;
4576 	int rc, tag = 0xdeadbeef;
4577 	struct pm8001_ccb_info *ccb;
4578 	u8 retryFlag = 0x1;
4579 	u16 firstBurstSize = 0;
4580 	u16 ITNT = 2000;
4581 	struct domain_device *dev = pm8001_dev->sas_device;
4582 	struct domain_device *parent_dev = dev->parent;
4583 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4584 
4585 	memset(&payload, 0, sizeof(payload));
4586 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
4587 	if (rc)
4588 		return rc;
4589 	ccb = &pm8001_ha->ccb_info[tag];
4590 	ccb->device = pm8001_dev;
4591 	ccb->ccb_tag = tag;
4592 	payload.tag = cpu_to_le32(tag);
4593 	if (flag == 1)
4594 		stp_sspsmp_sata = 0x02; /*direct attached sata */
4595 	else {
4596 		if (pm8001_dev->dev_type == SAS_SATA_DEV)
4597 			stp_sspsmp_sata = 0x00; /* stp*/
4598 		else if (pm8001_dev->dev_type == SAS_END_DEVICE ||
4599 			pm8001_dev->dev_type == SAS_EDGE_EXPANDER_DEVICE ||
4600 			pm8001_dev->dev_type == SAS_FANOUT_EXPANDER_DEVICE)
4601 			stp_sspsmp_sata = 0x01; /*ssp or smp*/
4602 	}
4603 	if (parent_dev && dev_is_expander(parent_dev->dev_type))
4604 		phy_id = parent_dev->ex_dev.ex_phy->phy_id;
4605 	else
4606 		phy_id = pm8001_dev->attached_phy;
4607 	opc = OPC_INB_REG_DEV;
4608 	linkrate = (pm8001_dev->sas_device->linkrate < dev->port->linkrate) ?
4609 			pm8001_dev->sas_device->linkrate : dev->port->linkrate;
4610 	payload.phyid_portid =
4611 		cpu_to_le32(((pm8001_dev->sas_device->port->id) & 0x0F) |
4612 		((phy_id & 0x0F) << 4));
4613 	payload.dtype_dlr_retry = cpu_to_le32((retryFlag & 0x01) |
4614 		((linkrate & 0x0F) * 0x1000000) |
4615 		((stp_sspsmp_sata & 0x03) * 0x10000000));
4616 	payload.firstburstsize_ITNexustimeout =
4617 		cpu_to_le32(ITNT | (firstBurstSize * 0x10000));
4618 	memcpy(payload.sas_addr, pm8001_dev->sas_device->sas_addr,
4619 		SAS_ADDR_SIZE);
4620 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4621 			sizeof(payload), 0);
4622 	return rc;
4623 }
4624 
4625 /*
4626  * see comments on pm8001_mpi_reg_resp.
4627  */
4628 int pm8001_chip_dereg_dev_req(struct pm8001_hba_info *pm8001_ha,
4629 	u32 device_id)
4630 {
4631 	struct dereg_dev_req payload;
4632 	u32 opc = OPC_INB_DEREG_DEV_HANDLE;
4633 	int ret;
4634 	struct inbound_queue_table *circularQ;
4635 
4636 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4637 	memset(&payload, 0, sizeof(payload));
4638 	payload.tag = cpu_to_le32(1);
4639 	payload.device_id = cpu_to_le32(device_id);
4640 	PM8001_MSG_DBG(pm8001_ha,
4641 		pm8001_printk("unregister device device_id = %d\n", device_id));
4642 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4643 			sizeof(payload), 0);
4644 	return ret;
4645 }
4646 
4647 /**
4648  * pm8001_chip_phy_ctl_req - support the local phy operation
4649  * @pm8001_ha: our hba card information.
4650  * @phyId: the phy id which we wanted to operate
4651  * @phy_op: the phy operation to request
4652  */
4653 static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
4654 	u32 phyId, u32 phy_op)
4655 {
4656 	struct local_phy_ctl_req payload;
4657 	struct inbound_queue_table *circularQ;
4658 	int ret;
4659 	u32 opc = OPC_INB_LOCAL_PHY_CONTROL;
4660 	memset(&payload, 0, sizeof(payload));
4661 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4662 	payload.tag = cpu_to_le32(1);
4663 	payload.phyop_phyid =
4664 		cpu_to_le32(((phy_op & 0xff) << 8) | (phyId & 0x0F));
4665 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4666 			sizeof(payload), 0);
4667 	return ret;
4668 }
4669 
4670 static u32 pm8001_chip_is_our_interrupt(struct pm8001_hba_info *pm8001_ha)
4671 {
4672 #ifdef PM8001_USE_MSIX
4673 	return 1;
4674 #else
4675 	u32 value;
4676 
4677 	value = pm8001_cr32(pm8001_ha, 0, MSGU_ODR);
4678 	if (value)
4679 		return 1;
4680 	return 0;
4681 #endif
4682 }
4683 
4684 /**
4685  * pm8001_chip_isr - PM8001 isr handler.
4686  * @pm8001_ha: our hba card information.
4687  * @vec: IRQ number
4688  */
4689 static irqreturn_t
4690 pm8001_chip_isr(struct pm8001_hba_info *pm8001_ha, u8 vec)
4691 {
4692 	pm8001_chip_interrupt_disable(pm8001_ha, vec);
4693 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
4694 		"irq vec %d, ODMR:0x%x\n",
4695 		vec, pm8001_cr32(pm8001_ha, 0, 0x30)));
4696 	process_oq(pm8001_ha, vec);
4697 	pm8001_chip_interrupt_enable(pm8001_ha, vec);
4698 	return IRQ_HANDLED;
4699 }
4700 
4701 static int send_task_abort(struct pm8001_hba_info *pm8001_ha, u32 opc,
4702 	u32 dev_id, u8 flag, u32 task_tag, u32 cmd_tag)
4703 {
4704 	struct task_abort_req task_abort;
4705 	struct inbound_queue_table *circularQ;
4706 	int ret;
4707 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4708 	memset(&task_abort, 0, sizeof(task_abort));
4709 	if (ABORT_SINGLE == (flag & ABORT_MASK)) {
4710 		task_abort.abort_all = 0;
4711 		task_abort.device_id = cpu_to_le32(dev_id);
4712 		task_abort.tag_to_abort = cpu_to_le32(task_tag);
4713 		task_abort.tag = cpu_to_le32(cmd_tag);
4714 	} else if (ABORT_ALL == (flag & ABORT_MASK)) {
4715 		task_abort.abort_all = cpu_to_le32(1);
4716 		task_abort.device_id = cpu_to_le32(dev_id);
4717 		task_abort.tag = cpu_to_le32(cmd_tag);
4718 	}
4719 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
4720 			sizeof(task_abort), 0);
4721 	return ret;
4722 }
4723 
4724 /*
4725  * pm8001_chip_abort_task - SAS abort task when error or exception happened.
4726  */
4727 int pm8001_chip_abort_task(struct pm8001_hba_info *pm8001_ha,
4728 	struct pm8001_device *pm8001_dev, u8 flag, u32 task_tag, u32 cmd_tag)
4729 {
4730 	u32 opc, device_id;
4731 	int rc = TMF_RESP_FUNC_FAILED;
4732 	PM8001_EH_DBG(pm8001_ha,
4733 		pm8001_printk("cmd_tag = %x, abort task tag = 0x%x",
4734 			cmd_tag, task_tag));
4735 	if (pm8001_dev->dev_type == SAS_END_DEVICE)
4736 		opc = OPC_INB_SSP_ABORT;
4737 	else if (pm8001_dev->dev_type == SAS_SATA_DEV)
4738 		opc = OPC_INB_SATA_ABORT;
4739 	else
4740 		opc = OPC_INB_SMP_ABORT;/* SMP */
4741 	device_id = pm8001_dev->device_id;
4742 	rc = send_task_abort(pm8001_ha, opc, device_id, flag,
4743 		task_tag, cmd_tag);
4744 	if (rc != TMF_RESP_FUNC_COMPLETE)
4745 		PM8001_EH_DBG(pm8001_ha, pm8001_printk("rc= %d\n", rc));
4746 	return rc;
4747 }
4748 
4749 /**
4750  * pm8001_chip_ssp_tm_req - built the task management command.
4751  * @pm8001_ha: our hba card information.
4752  * @ccb: the ccb information.
4753  * @tmf: task management function.
4754  */
4755 int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
4756 	struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf)
4757 {
4758 	struct sas_task *task = ccb->task;
4759 	struct domain_device *dev = task->dev;
4760 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
4761 	u32 opc = OPC_INB_SSPINITMSTART;
4762 	struct inbound_queue_table *circularQ;
4763 	struct ssp_ini_tm_start_req sspTMCmd;
4764 	int ret;
4765 
4766 	memset(&sspTMCmd, 0, sizeof(sspTMCmd));
4767 	sspTMCmd.device_id = cpu_to_le32(pm8001_dev->device_id);
4768 	sspTMCmd.relate_tag = cpu_to_le32(tmf->tag_of_task_to_be_managed);
4769 	sspTMCmd.tmf = cpu_to_le32(tmf->tmf);
4770 	memcpy(sspTMCmd.lun, task->ssp_task.LUN, 8);
4771 	sspTMCmd.tag = cpu_to_le32(ccb->ccb_tag);
4772 	if (pm8001_ha->chip_id != chip_8001)
4773 		sspTMCmd.ds_ads_m = 0x08;
4774 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4775 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sspTMCmd,
4776 			sizeof(sspTMCmd), 0);
4777 	return ret;
4778 }
4779 
4780 int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
4781 	void *payload)
4782 {
4783 	u32 opc = OPC_INB_GET_NVMD_DATA;
4784 	u32 nvmd_type;
4785 	int rc;
4786 	u32 tag;
4787 	struct pm8001_ccb_info *ccb;
4788 	struct inbound_queue_table *circularQ;
4789 	struct get_nvm_data_req nvmd_req;
4790 	struct fw_control_ex *fw_control_context;
4791 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4792 
4793 	nvmd_type = ioctl_payload->minor_function;
4794 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4795 	if (!fw_control_context)
4796 		return -ENOMEM;
4797 	fw_control_context->usrAddr = (u8 *)ioctl_payload->func_specific;
4798 	fw_control_context->len = ioctl_payload->rd_length;
4799 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4800 	memset(&nvmd_req, 0, sizeof(nvmd_req));
4801 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
4802 	if (rc) {
4803 		kfree(fw_control_context);
4804 		return rc;
4805 	}
4806 	ccb = &pm8001_ha->ccb_info[tag];
4807 	ccb->ccb_tag = tag;
4808 	ccb->fw_control_context = fw_control_context;
4809 	nvmd_req.tag = cpu_to_le32(tag);
4810 
4811 	switch (nvmd_type) {
4812 	case TWI_DEVICE: {
4813 		u32 twi_addr, twi_page_size;
4814 		twi_addr = 0xa8;
4815 		twi_page_size = 2;
4816 
4817 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
4818 			twi_page_size << 8 | TWI_DEVICE);
4819 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4820 		nvmd_req.resp_addr_hi =
4821 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4822 		nvmd_req.resp_addr_lo =
4823 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4824 		break;
4825 	}
4826 	case C_SEEPROM: {
4827 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
4828 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4829 		nvmd_req.resp_addr_hi =
4830 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4831 		nvmd_req.resp_addr_lo =
4832 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4833 		break;
4834 	}
4835 	case VPD_FLASH: {
4836 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
4837 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4838 		nvmd_req.resp_addr_hi =
4839 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4840 		nvmd_req.resp_addr_lo =
4841 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4842 		break;
4843 	}
4844 	case EXPAN_ROM: {
4845 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
4846 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4847 		nvmd_req.resp_addr_hi =
4848 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4849 		nvmd_req.resp_addr_lo =
4850 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4851 		break;
4852 	}
4853 	case IOP_RDUMP: {
4854 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | IOP_RDUMP);
4855 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
4856 		nvmd_req.vpd_offset = cpu_to_le32(ioctl_payload->offset);
4857 		nvmd_req.resp_addr_hi =
4858 		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4859 		nvmd_req.resp_addr_lo =
4860 		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4861 		break;
4862 	}
4863 	default:
4864 		break;
4865 	}
4866 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req,
4867 			sizeof(nvmd_req), 0);
4868 	if (rc) {
4869 		kfree(fw_control_context);
4870 		pm8001_tag_free(pm8001_ha, tag);
4871 	}
4872 	return rc;
4873 }
4874 
4875 int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha,
4876 	void *payload)
4877 {
4878 	u32 opc = OPC_INB_SET_NVMD_DATA;
4879 	u32 nvmd_type;
4880 	int rc;
4881 	u32 tag;
4882 	struct pm8001_ccb_info *ccb;
4883 	struct inbound_queue_table *circularQ;
4884 	struct set_nvm_data_req nvmd_req;
4885 	struct fw_control_ex *fw_control_context;
4886 	struct pm8001_ioctl_payload *ioctl_payload = payload;
4887 
4888 	nvmd_type = ioctl_payload->minor_function;
4889 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
4890 	if (!fw_control_context)
4891 		return -ENOMEM;
4892 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4893 	memcpy(pm8001_ha->memoryMap.region[NVMD].virt_ptr,
4894 		&ioctl_payload->func_specific,
4895 		ioctl_payload->wr_length);
4896 	memset(&nvmd_req, 0, sizeof(nvmd_req));
4897 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
4898 	if (rc) {
4899 		kfree(fw_control_context);
4900 		return -EBUSY;
4901 	}
4902 	ccb = &pm8001_ha->ccb_info[tag];
4903 	ccb->fw_control_context = fw_control_context;
4904 	ccb->ccb_tag = tag;
4905 	nvmd_req.tag = cpu_to_le32(tag);
4906 	switch (nvmd_type) {
4907 	case TWI_DEVICE: {
4908 		u32 twi_addr, twi_page_size;
4909 		twi_addr = 0xa8;
4910 		twi_page_size = 2;
4911 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4912 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
4913 			twi_page_size << 8 | TWI_DEVICE);
4914 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4915 		nvmd_req.resp_addr_hi =
4916 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4917 		nvmd_req.resp_addr_lo =
4918 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4919 		break;
4920 	}
4921 	case C_SEEPROM:
4922 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
4923 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4924 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4925 		nvmd_req.resp_addr_hi =
4926 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4927 		nvmd_req.resp_addr_lo =
4928 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4929 		break;
4930 	case VPD_FLASH:
4931 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
4932 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4933 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4934 		nvmd_req.resp_addr_hi =
4935 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4936 		nvmd_req.resp_addr_lo =
4937 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4938 		break;
4939 	case EXPAN_ROM:
4940 		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
4941 		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
4942 		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
4943 		nvmd_req.resp_addr_hi =
4944 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
4945 		nvmd_req.resp_addr_lo =
4946 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
4947 		break;
4948 	default:
4949 		break;
4950 	}
4951 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req,
4952 			sizeof(nvmd_req), 0);
4953 	if (rc) {
4954 		kfree(fw_control_context);
4955 		pm8001_tag_free(pm8001_ha, tag);
4956 	}
4957 	return rc;
4958 }
4959 
4960 /**
4961  * pm8001_chip_fw_flash_update_build - support the firmware update operation
4962  * @pm8001_ha: our hba card information.
4963  * @fw_flash_updata_info: firmware flash update param
4964  * @tag: Tag to apply to the payload
4965  */
4966 int
4967 pm8001_chip_fw_flash_update_build(struct pm8001_hba_info *pm8001_ha,
4968 	void *fw_flash_updata_info, u32 tag)
4969 {
4970 	struct fw_flash_Update_req payload;
4971 	struct fw_flash_updata_info *info;
4972 	struct inbound_queue_table *circularQ;
4973 	int ret;
4974 	u32 opc = OPC_INB_FW_FLASH_UPDATE;
4975 
4976 	memset(&payload, 0, sizeof(struct fw_flash_Update_req));
4977 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
4978 	info = fw_flash_updata_info;
4979 	payload.tag = cpu_to_le32(tag);
4980 	payload.cur_image_len = cpu_to_le32(info->cur_image_len);
4981 	payload.cur_image_offset = cpu_to_le32(info->cur_image_offset);
4982 	payload.total_image_len = cpu_to_le32(info->total_image_len);
4983 	payload.len = info->sgl.im_len.len ;
4984 	payload.sgl_addr_lo =
4985 		cpu_to_le32(lower_32_bits(le64_to_cpu(info->sgl.addr)));
4986 	payload.sgl_addr_hi =
4987 		cpu_to_le32(upper_32_bits(le64_to_cpu(info->sgl.addr)));
4988 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
4989 			sizeof(payload), 0);
4990 	return ret;
4991 }
4992 
4993 int
4994 pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
4995 	void *payload)
4996 {
4997 	struct fw_flash_updata_info flash_update_info;
4998 	struct fw_control_info *fw_control;
4999 	struct fw_control_ex *fw_control_context;
5000 	int rc;
5001 	u32 tag;
5002 	struct pm8001_ccb_info *ccb;
5003 	void *buffer = pm8001_ha->memoryMap.region[FW_FLASH].virt_ptr;
5004 	dma_addr_t phys_addr = pm8001_ha->memoryMap.region[FW_FLASH].phys_addr;
5005 	struct pm8001_ioctl_payload *ioctl_payload = payload;
5006 
5007 	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
5008 	if (!fw_control_context)
5009 		return -ENOMEM;
5010 	fw_control = (struct fw_control_info *)&ioctl_payload->func_specific;
5011 	PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
5012 		"dma fw_control context input length :%x\n", fw_control->len));
5013 	memcpy(buffer, fw_control->buffer, fw_control->len);
5014 	flash_update_info.sgl.addr = cpu_to_le64(phys_addr);
5015 	flash_update_info.sgl.im_len.len = cpu_to_le32(fw_control->len);
5016 	flash_update_info.sgl.im_len.e = 0;
5017 	flash_update_info.cur_image_offset = fw_control->offset;
5018 	flash_update_info.cur_image_len = fw_control->len;
5019 	flash_update_info.total_image_len = fw_control->size;
5020 	fw_control_context->fw_control = fw_control;
5021 	fw_control_context->virtAddr = buffer;
5022 	fw_control_context->phys_addr = phys_addr;
5023 	fw_control_context->len = fw_control->len;
5024 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
5025 	if (rc) {
5026 		kfree(fw_control_context);
5027 		return -EBUSY;
5028 	}
5029 	ccb = &pm8001_ha->ccb_info[tag];
5030 	ccb->fw_control_context = fw_control_context;
5031 	ccb->ccb_tag = tag;
5032 	rc = pm8001_chip_fw_flash_update_build(pm8001_ha, &flash_update_info,
5033 		tag);
5034 	return rc;
5035 }
5036 
5037 ssize_t
5038 pm8001_get_gsm_dump(struct device *cdev, u32 length, char *buf)
5039 {
5040 	u32 value, rem, offset = 0, bar = 0;
5041 	u32 index, work_offset, dw_length;
5042 	u32 shift_value, gsm_base, gsm_dump_offset;
5043 	char *direct_data;
5044 	struct Scsi_Host *shost = class_to_shost(cdev);
5045 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
5046 	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
5047 
5048 	direct_data = buf;
5049 	gsm_dump_offset = pm8001_ha->fatal_forensic_shift_offset;
5050 
5051 	/* check max is 1 Mbytes */
5052 	if ((length > 0x100000) || (gsm_dump_offset & 3) ||
5053 		((gsm_dump_offset + length) > 0x1000000))
5054 			return -EINVAL;
5055 
5056 	if (pm8001_ha->chip_id == chip_8001)
5057 		bar = 2;
5058 	else
5059 		bar = 1;
5060 
5061 	work_offset = gsm_dump_offset & 0xFFFF0000;
5062 	offset = gsm_dump_offset & 0x0000FFFF;
5063 	gsm_dump_offset = work_offset;
5064 	/* adjust length to dword boundary */
5065 	rem = length & 3;
5066 	dw_length = length >> 2;
5067 
5068 	for (index = 0; index < dw_length; index++) {
5069 		if ((work_offset + offset) & 0xFFFF0000) {
5070 			if (pm8001_ha->chip_id == chip_8001)
5071 				shift_value = ((gsm_dump_offset + offset) &
5072 						SHIFT_REG_64K_MASK);
5073 			else
5074 				shift_value = (((gsm_dump_offset + offset) &
5075 						SHIFT_REG_64K_MASK) >>
5076 						SHIFT_REG_BIT_SHIFT);
5077 
5078 			if (pm8001_ha->chip_id == chip_8001) {
5079 				gsm_base = GSM_BASE;
5080 				if (-1 == pm8001_bar4_shift(pm8001_ha,
5081 						(gsm_base + shift_value)))
5082 					return -EIO;
5083 			} else {
5084 				gsm_base = 0;
5085 				if (-1 == pm80xx_bar4_shift(pm8001_ha,
5086 						(gsm_base + shift_value)))
5087 					return -EIO;
5088 			}
5089 			gsm_dump_offset = (gsm_dump_offset + offset) &
5090 						0xFFFF0000;
5091 			work_offset = 0;
5092 			offset = offset & 0x0000FFFF;
5093 		}
5094 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
5095 						0x0000FFFF);
5096 		direct_data += sprintf(direct_data, "%08x ", value);
5097 		offset += 4;
5098 	}
5099 	if (rem != 0) {
5100 		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
5101 						0x0000FFFF);
5102 		/* xfr for non_dw */
5103 		direct_data += sprintf(direct_data, "%08x ", value);
5104 	}
5105 	/* Shift back to BAR4 original address */
5106 	if (-1 == pm8001_bar4_shift(pm8001_ha, 0))
5107 			return -EIO;
5108 	pm8001_ha->fatal_forensic_shift_offset += 1024;
5109 
5110 	if (pm8001_ha->fatal_forensic_shift_offset >= 0x100000)
5111 		pm8001_ha->fatal_forensic_shift_offset = 0;
5112 	return direct_data - buf;
5113 }
5114 
5115 int
5116 pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
5117 	struct pm8001_device *pm8001_dev, u32 state)
5118 {
5119 	struct set_dev_state_req payload;
5120 	struct inbound_queue_table *circularQ;
5121 	struct pm8001_ccb_info *ccb;
5122 	int rc;
5123 	u32 tag;
5124 	u32 opc = OPC_INB_SET_DEVICE_STATE;
5125 	memset(&payload, 0, sizeof(payload));
5126 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
5127 	if (rc)
5128 		return -1;
5129 	ccb = &pm8001_ha->ccb_info[tag];
5130 	ccb->ccb_tag = tag;
5131 	ccb->device = pm8001_dev;
5132 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
5133 	payload.tag = cpu_to_le32(tag);
5134 	payload.device_id = cpu_to_le32(pm8001_dev->device_id);
5135 	payload.nds = cpu_to_le32(state);
5136 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
5137 			sizeof(payload), 0);
5138 	return rc;
5139 
5140 }
5141 
5142 static int
5143 pm8001_chip_sas_re_initialization(struct pm8001_hba_info *pm8001_ha)
5144 {
5145 	struct sas_re_initialization_req payload;
5146 	struct inbound_queue_table *circularQ;
5147 	struct pm8001_ccb_info *ccb;
5148 	int rc;
5149 	u32 tag;
5150 	u32 opc = OPC_INB_SAS_RE_INITIALIZE;
5151 	memset(&payload, 0, sizeof(payload));
5152 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
5153 	if (rc)
5154 		return -ENOMEM;
5155 	ccb = &pm8001_ha->ccb_info[tag];
5156 	ccb->ccb_tag = tag;
5157 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
5158 	payload.tag = cpu_to_le32(tag);
5159 	payload.SSAHOLT = cpu_to_le32(0xd << 25);
5160 	payload.sata_hol_tmo = cpu_to_le32(80);
5161 	payload.open_reject_cmdretries_data_retries = cpu_to_le32(0xff00ff);
5162 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
5163 			sizeof(payload), 0);
5164 	if (rc)
5165 		pm8001_tag_free(pm8001_ha, tag);
5166 	return rc;
5167 
5168 }
5169 
5170 const struct pm8001_dispatch pm8001_8001_dispatch = {
5171 	.name			= "pmc8001",
5172 	.chip_init		= pm8001_chip_init,
5173 	.chip_soft_rst		= pm8001_chip_soft_rst,
5174 	.chip_rst		= pm8001_hw_chip_rst,
5175 	.chip_iounmap		= pm8001_chip_iounmap,
5176 	.isr			= pm8001_chip_isr,
5177 	.is_our_interrupt	= pm8001_chip_is_our_interrupt,
5178 	.isr_process_oq		= process_oq,
5179 	.interrupt_enable 	= pm8001_chip_interrupt_enable,
5180 	.interrupt_disable	= pm8001_chip_interrupt_disable,
5181 	.make_prd		= pm8001_chip_make_sg,
5182 	.smp_req		= pm8001_chip_smp_req,
5183 	.ssp_io_req		= pm8001_chip_ssp_io_req,
5184 	.sata_req		= pm8001_chip_sata_req,
5185 	.phy_start_req		= pm8001_chip_phy_start_req,
5186 	.phy_stop_req		= pm8001_chip_phy_stop_req,
5187 	.reg_dev_req		= pm8001_chip_reg_dev_req,
5188 	.dereg_dev_req		= pm8001_chip_dereg_dev_req,
5189 	.phy_ctl_req		= pm8001_chip_phy_ctl_req,
5190 	.task_abort		= pm8001_chip_abort_task,
5191 	.ssp_tm_req		= pm8001_chip_ssp_tm_req,
5192 	.get_nvmd_req		= pm8001_chip_get_nvmd_req,
5193 	.set_nvmd_req		= pm8001_chip_set_nvmd_req,
5194 	.fw_flash_update_req	= pm8001_chip_fw_flash_update_req,
5195 	.set_dev_state_req	= pm8001_chip_set_dev_state_req,
5196 	.sas_re_init_req	= pm8001_chip_sas_re_initialization,
5197 };
5198