1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * QLogic iSCSI HBA Driver
4  * Copyright (c)  2003-2013 QLogic Corporation
5  */
6 #include <linux/delay.h>
7 #include <linux/io.h>
8 #include <linux/pci.h>
9 #include <linux/ratelimit.h>
10 #include "ql4_def.h"
11 #include "ql4_glbl.h"
12 #include "ql4_inline.h"
13 
14 #include <linux/io-64-nonatomic-lo-hi.h>
15 
16 #define TIMEOUT_100_MS	100
17 #define MASK(n)		DMA_BIT_MASK(n)
18 #define MN_WIN(addr)	(((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
19 #define OCM_WIN(addr)	(((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
20 #define MS_WIN(addr)	(addr & 0x0ffc0000)
21 #define QLA82XX_PCI_MN_2M	(0)
22 #define QLA82XX_PCI_MS_2M	(0x80000)
23 #define QLA82XX_PCI_OCM0_2M	(0xc0000)
24 #define VALID_OCM_ADDR(addr)	(((addr) & 0x3f800) != 0x3f800)
25 #define GET_MEM_OFFS_2M(addr)	(addr & MASK(18))
26 
27 /* CRB window related */
28 #define CRB_BLK(off)	((off >> 20) & 0x3f)
29 #define CRB_SUBBLK(off)	((off >> 16) & 0xf)
30 #define CRB_WINDOW_2M	(0x130060)
31 #define CRB_HI(off)	((qla4_82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
32 			((off) & 0xf0000))
33 #define QLA82XX_PCI_CAMQM_2M_END	(0x04800800UL)
34 #define QLA82XX_PCI_CAMQM_2M_BASE	(0x000ff800UL)
35 #define CRB_INDIRECT_2M			(0x1e0000UL)
36 
37 static inline void __iomem *
qla4_8xxx_pci_base_offsetfset(struct scsi_qla_host * ha,unsigned long off)38 qla4_8xxx_pci_base_offsetfset(struct scsi_qla_host *ha, unsigned long off)
39 {
40 	if ((off < ha->first_page_group_end) &&
41 	    (off >= ha->first_page_group_start))
42 		return (void __iomem *)(ha->nx_pcibase + off);
43 
44 	return NULL;
45 }
46 
47 static const int MD_MIU_TEST_AGT_RDDATA[] = { 0x410000A8,
48 				0x410000AC, 0x410000B8, 0x410000BC };
49 #define MAX_CRB_XFORM 60
50 static unsigned long crb_addr_xform[MAX_CRB_XFORM];
51 static int qla4_8xxx_crb_table_initialized;
52 
53 #define qla4_8xxx_crb_addr_transform(name) \
54 	(crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
55 	 QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
56 static void
qla4_82xx_crb_addr_transform_setup(void)57 qla4_82xx_crb_addr_transform_setup(void)
58 {
59 	qla4_8xxx_crb_addr_transform(XDMA);
60 	qla4_8xxx_crb_addr_transform(TIMR);
61 	qla4_8xxx_crb_addr_transform(SRE);
62 	qla4_8xxx_crb_addr_transform(SQN3);
63 	qla4_8xxx_crb_addr_transform(SQN2);
64 	qla4_8xxx_crb_addr_transform(SQN1);
65 	qla4_8xxx_crb_addr_transform(SQN0);
66 	qla4_8xxx_crb_addr_transform(SQS3);
67 	qla4_8xxx_crb_addr_transform(SQS2);
68 	qla4_8xxx_crb_addr_transform(SQS1);
69 	qla4_8xxx_crb_addr_transform(SQS0);
70 	qla4_8xxx_crb_addr_transform(RPMX7);
71 	qla4_8xxx_crb_addr_transform(RPMX6);
72 	qla4_8xxx_crb_addr_transform(RPMX5);
73 	qla4_8xxx_crb_addr_transform(RPMX4);
74 	qla4_8xxx_crb_addr_transform(RPMX3);
75 	qla4_8xxx_crb_addr_transform(RPMX2);
76 	qla4_8xxx_crb_addr_transform(RPMX1);
77 	qla4_8xxx_crb_addr_transform(RPMX0);
78 	qla4_8xxx_crb_addr_transform(ROMUSB);
79 	qla4_8xxx_crb_addr_transform(SN);
80 	qla4_8xxx_crb_addr_transform(QMN);
81 	qla4_8xxx_crb_addr_transform(QMS);
82 	qla4_8xxx_crb_addr_transform(PGNI);
83 	qla4_8xxx_crb_addr_transform(PGND);
84 	qla4_8xxx_crb_addr_transform(PGN3);
85 	qla4_8xxx_crb_addr_transform(PGN2);
86 	qla4_8xxx_crb_addr_transform(PGN1);
87 	qla4_8xxx_crb_addr_transform(PGN0);
88 	qla4_8xxx_crb_addr_transform(PGSI);
89 	qla4_8xxx_crb_addr_transform(PGSD);
90 	qla4_8xxx_crb_addr_transform(PGS3);
91 	qla4_8xxx_crb_addr_transform(PGS2);
92 	qla4_8xxx_crb_addr_transform(PGS1);
93 	qla4_8xxx_crb_addr_transform(PGS0);
94 	qla4_8xxx_crb_addr_transform(PS);
95 	qla4_8xxx_crb_addr_transform(PH);
96 	qla4_8xxx_crb_addr_transform(NIU);
97 	qla4_8xxx_crb_addr_transform(I2Q);
98 	qla4_8xxx_crb_addr_transform(EG);
99 	qla4_8xxx_crb_addr_transform(MN);
100 	qla4_8xxx_crb_addr_transform(MS);
101 	qla4_8xxx_crb_addr_transform(CAS2);
102 	qla4_8xxx_crb_addr_transform(CAS1);
103 	qla4_8xxx_crb_addr_transform(CAS0);
104 	qla4_8xxx_crb_addr_transform(CAM);
105 	qla4_8xxx_crb_addr_transform(C2C1);
106 	qla4_8xxx_crb_addr_transform(C2C0);
107 	qla4_8xxx_crb_addr_transform(SMB);
108 	qla4_8xxx_crb_addr_transform(OCM0);
109 	qla4_8xxx_crb_addr_transform(I2C0);
110 
111 	qla4_8xxx_crb_table_initialized = 1;
112 }
113 
114 static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
115 	{{{0, 0,         0,         0} } },		/* 0: PCI */
116 	{{{1, 0x0100000, 0x0102000, 0x120000},	/* 1: PCIE */
117 		{1, 0x0110000, 0x0120000, 0x130000},
118 		{1, 0x0120000, 0x0122000, 0x124000},
119 		{1, 0x0130000, 0x0132000, 0x126000},
120 		{1, 0x0140000, 0x0142000, 0x128000},
121 		{1, 0x0150000, 0x0152000, 0x12a000},
122 		{1, 0x0160000, 0x0170000, 0x110000},
123 		{1, 0x0170000, 0x0172000, 0x12e000},
124 		{0, 0x0000000, 0x0000000, 0x000000},
125 		{0, 0x0000000, 0x0000000, 0x000000},
126 		{0, 0x0000000, 0x0000000, 0x000000},
127 		{0, 0x0000000, 0x0000000, 0x000000},
128 		{0, 0x0000000, 0x0000000, 0x000000},
129 		{0, 0x0000000, 0x0000000, 0x000000},
130 		{1, 0x01e0000, 0x01e0800, 0x122000},
131 		{0, 0x0000000, 0x0000000, 0x000000} } },
132 	{{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
133 	{{{0, 0,         0,         0} } },	    /* 3: */
134 	{{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
135 	{{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE   */
136 	{{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU   */
137 	{{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM    */
138 	{{{1, 0x0800000, 0x0802000, 0x170000},  /* 8: SQM0  */
139 		{0, 0x0000000, 0x0000000, 0x000000},
140 		{0, 0x0000000, 0x0000000, 0x000000},
141 		{0, 0x0000000, 0x0000000, 0x000000},
142 		{0, 0x0000000, 0x0000000, 0x000000},
143 		{0, 0x0000000, 0x0000000, 0x000000},
144 		{0, 0x0000000, 0x0000000, 0x000000},
145 		{0, 0x0000000, 0x0000000, 0x000000},
146 		{0, 0x0000000, 0x0000000, 0x000000},
147 		{0, 0x0000000, 0x0000000, 0x000000},
148 		{0, 0x0000000, 0x0000000, 0x000000},
149 		{0, 0x0000000, 0x0000000, 0x000000},
150 		{0, 0x0000000, 0x0000000, 0x000000},
151 		{0, 0x0000000, 0x0000000, 0x000000},
152 		{0, 0x0000000, 0x0000000, 0x000000},
153 		{1, 0x08f0000, 0x08f2000, 0x172000} } },
154 	{{{1, 0x0900000, 0x0902000, 0x174000},	/* 9: SQM1*/
155 		{0, 0x0000000, 0x0000000, 0x000000},
156 		{0, 0x0000000, 0x0000000, 0x000000},
157 		{0, 0x0000000, 0x0000000, 0x000000},
158 		{0, 0x0000000, 0x0000000, 0x000000},
159 		{0, 0x0000000, 0x0000000, 0x000000},
160 		{0, 0x0000000, 0x0000000, 0x000000},
161 		{0, 0x0000000, 0x0000000, 0x000000},
162 		{0, 0x0000000, 0x0000000, 0x000000},
163 		{0, 0x0000000, 0x0000000, 0x000000},
164 		{0, 0x0000000, 0x0000000, 0x000000},
165 		{0, 0x0000000, 0x0000000, 0x000000},
166 		{0, 0x0000000, 0x0000000, 0x000000},
167 		{0, 0x0000000, 0x0000000, 0x000000},
168 		{0, 0x0000000, 0x0000000, 0x000000},
169 		{1, 0x09f0000, 0x09f2000, 0x176000} } },
170 	{{{0, 0x0a00000, 0x0a02000, 0x178000},	/* 10: SQM2*/
171 		{0, 0x0000000, 0x0000000, 0x000000},
172 		{0, 0x0000000, 0x0000000, 0x000000},
173 		{0, 0x0000000, 0x0000000, 0x000000},
174 		{0, 0x0000000, 0x0000000, 0x000000},
175 		{0, 0x0000000, 0x0000000, 0x000000},
176 		{0, 0x0000000, 0x0000000, 0x000000},
177 		{0, 0x0000000, 0x0000000, 0x000000},
178 		{0, 0x0000000, 0x0000000, 0x000000},
179 		{0, 0x0000000, 0x0000000, 0x000000},
180 		{0, 0x0000000, 0x0000000, 0x000000},
181 		{0, 0x0000000, 0x0000000, 0x000000},
182 		{0, 0x0000000, 0x0000000, 0x000000},
183 		{0, 0x0000000, 0x0000000, 0x000000},
184 		{0, 0x0000000, 0x0000000, 0x000000},
185 		{1, 0x0af0000, 0x0af2000, 0x17a000} } },
186 	{{{0, 0x0b00000, 0x0b02000, 0x17c000},	/* 11: SQM3*/
187 		{0, 0x0000000, 0x0000000, 0x000000},
188 		{0, 0x0000000, 0x0000000, 0x000000},
189 		{0, 0x0000000, 0x0000000, 0x000000},
190 		{0, 0x0000000, 0x0000000, 0x000000},
191 		{0, 0x0000000, 0x0000000, 0x000000},
192 		{0, 0x0000000, 0x0000000, 0x000000},
193 		{0, 0x0000000, 0x0000000, 0x000000},
194 		{0, 0x0000000, 0x0000000, 0x000000},
195 		{0, 0x0000000, 0x0000000, 0x000000},
196 		{0, 0x0000000, 0x0000000, 0x000000},
197 		{0, 0x0000000, 0x0000000, 0x000000},
198 		{0, 0x0000000, 0x0000000, 0x000000},
199 		{0, 0x0000000, 0x0000000, 0x000000},
200 		{0, 0x0000000, 0x0000000, 0x000000},
201 		{1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
202 	{{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
203 	{{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
204 	{{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
205 	{{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
206 	{{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
207 	{{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
208 	{{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
209 	{{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
210 	{{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
211 	{{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
212 	{{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
213 	{{{0, 0,         0,         0} } },	/* 23: */
214 	{{{0, 0,         0,         0} } },	/* 24: */
215 	{{{0, 0,         0,         0} } },	/* 25: */
216 	{{{0, 0,         0,         0} } },	/* 26: */
217 	{{{0, 0,         0,         0} } },	/* 27: */
218 	{{{0, 0,         0,         0} } },	/* 28: */
219 	{{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
220 	{{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
221 	{{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
222 	{{{0} } },				/* 32: PCI */
223 	{{{1, 0x2100000, 0x2102000, 0x120000},	/* 33: PCIE */
224 		{1, 0x2110000, 0x2120000, 0x130000},
225 		{1, 0x2120000, 0x2122000, 0x124000},
226 		{1, 0x2130000, 0x2132000, 0x126000},
227 		{1, 0x2140000, 0x2142000, 0x128000},
228 		{1, 0x2150000, 0x2152000, 0x12a000},
229 		{1, 0x2160000, 0x2170000, 0x110000},
230 		{1, 0x2170000, 0x2172000, 0x12e000},
231 		{0, 0x0000000, 0x0000000, 0x000000},
232 		{0, 0x0000000, 0x0000000, 0x000000},
233 		{0, 0x0000000, 0x0000000, 0x000000},
234 		{0, 0x0000000, 0x0000000, 0x000000},
235 		{0, 0x0000000, 0x0000000, 0x000000},
236 		{0, 0x0000000, 0x0000000, 0x000000},
237 		{0, 0x0000000, 0x0000000, 0x000000},
238 		{0, 0x0000000, 0x0000000, 0x000000} } },
239 	{{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
240 	{{{0} } },				/* 35: */
241 	{{{0} } },				/* 36: */
242 	{{{0} } },				/* 37: */
243 	{{{0} } },				/* 38: */
244 	{{{0} } },				/* 39: */
245 	{{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
246 	{{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
247 	{{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
248 	{{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
249 	{{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
250 	{{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
251 	{{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
252 	{{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
253 	{{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
254 	{{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
255 	{{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
256 	{{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
257 	{{{0} } },				/* 52: */
258 	{{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
259 	{{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
260 	{{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
261 	{{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
262 	{{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
263 	{{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
264 	{{{0} } },				/* 59: I2C0 */
265 	{{{0} } },				/* 60: I2C1 */
266 	{{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },/* 61: LPC */
267 	{{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
268 	{{{1, 0x3f00000, 0x3f01000, 0x168000} } }	/* 63: P2NR0 */
269 };
270 
271 /*
272  * top 12 bits of crb internal address (hub, agent)
273  */
274 static unsigned qla4_82xx_crb_hub_agt[64] = {
275 	0,
276 	QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
277 	QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
278 	QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
279 	0,
280 	QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
281 	QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
282 	QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
283 	QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
284 	QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
285 	QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
286 	QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
287 	QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
288 	QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
289 	QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
290 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
291 	QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
292 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
293 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
294 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
295 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
296 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
297 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
298 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
299 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
300 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
301 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
302 	0,
303 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
304 	QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
305 	0,
306 	QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
307 	0,
308 	QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
309 	QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
310 	0,
311 	0,
312 	0,
313 	0,
314 	0,
315 	QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
316 	0,
317 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
318 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
319 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
320 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
321 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
322 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
323 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
324 	QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
325 	QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
326 	QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
327 	0,
328 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
329 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
330 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
331 	QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
332 	0,
333 	QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
334 	QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
335 	QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
336 	0,
337 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
338 	0,
339 };
340 
341 /* Device states */
342 static char *qdev_state[] = {
343 	"Unknown",
344 	"Cold",
345 	"Initializing",
346 	"Ready",
347 	"Need Reset",
348 	"Need Quiescent",
349 	"Failed",
350 	"Quiescent",
351 };
352 
353 /*
354  * In: 'off' is offset from CRB space in 128M pci map
355  * Out: 'off' is 2M pci map addr
356  * side effect: lock crb window
357  */
358 static void
qla4_82xx_pci_set_crbwindow_2M(struct scsi_qla_host * ha,ulong * off)359 qla4_82xx_pci_set_crbwindow_2M(struct scsi_qla_host *ha, ulong *off)
360 {
361 	u32 win_read;
362 
363 	ha->crb_win = CRB_HI(*off);
364 	writel(ha->crb_win,
365 		(void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
366 
367 	/* Read back value to make sure write has gone through before trying
368 	* to use it. */
369 	win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
370 	if (win_read != ha->crb_win) {
371 		DEBUG2(ql4_printk(KERN_INFO, ha,
372 		    "%s: Written crbwin (0x%x) != Read crbwin (0x%x),"
373 		    " off=0x%lx\n", __func__, ha->crb_win, win_read, *off));
374 	}
375 	*off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
376 }
377 
378 #define CRB_WIN_LOCK_TIMEOUT 100000000
379 
380 /*
381  * Context: atomic
382  */
qla4_82xx_crb_win_lock(struct scsi_qla_host * ha)383 static int qla4_82xx_crb_win_lock(struct scsi_qla_host *ha)
384 {
385 	int done = 0, timeout = 0;
386 
387 	while (!done) {
388 		/* acquire semaphore3 from PCI HW block */
389 		done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
390 		if (done == 1)
391 			break;
392 		if (timeout >= CRB_WIN_LOCK_TIMEOUT)
393 			return -1;
394 
395 		timeout++;
396 		udelay(10);
397 	}
398 	qla4_82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->func_num);
399 	return 0;
400 }
401 
qla4_82xx_crb_win_unlock(struct scsi_qla_host * ha)402 void qla4_82xx_crb_win_unlock(struct scsi_qla_host *ha)
403 {
404 	qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
405 }
406 
407 void
qla4_82xx_wr_32(struct scsi_qla_host * ha,ulong off,u32 data)408 qla4_82xx_wr_32(struct scsi_qla_host *ha, ulong off, u32 data)
409 {
410 	unsigned long flags = 0;
411 	int rv;
412 
413 	rv = qla4_82xx_pci_get_crb_addr_2M(ha, &off);
414 
415 	BUG_ON(rv == -1);
416 
417 	if (rv == 1) {
418 		write_lock_irqsave(&ha->hw_lock, flags);
419 		qla4_82xx_crb_win_lock(ha);
420 		qla4_82xx_pci_set_crbwindow_2M(ha, &off);
421 	}
422 
423 	writel(data, (void __iomem *)off);
424 
425 	if (rv == 1) {
426 		qla4_82xx_crb_win_unlock(ha);
427 		write_unlock_irqrestore(&ha->hw_lock, flags);
428 	}
429 }
430 
qla4_82xx_rd_32(struct scsi_qla_host * ha,ulong off)431 uint32_t qla4_82xx_rd_32(struct scsi_qla_host *ha, ulong off)
432 {
433 	unsigned long flags = 0;
434 	int rv;
435 	u32 data;
436 
437 	rv = qla4_82xx_pci_get_crb_addr_2M(ha, &off);
438 
439 	BUG_ON(rv == -1);
440 
441 	if (rv == 1) {
442 		write_lock_irqsave(&ha->hw_lock, flags);
443 		qla4_82xx_crb_win_lock(ha);
444 		qla4_82xx_pci_set_crbwindow_2M(ha, &off);
445 	}
446 	data = readl((void __iomem *)off);
447 
448 	if (rv == 1) {
449 		qla4_82xx_crb_win_unlock(ha);
450 		write_unlock_irqrestore(&ha->hw_lock, flags);
451 	}
452 	return data;
453 }
454 
455 /* Minidump related functions */
qla4_82xx_md_rd_32(struct scsi_qla_host * ha,uint32_t off,uint32_t * data)456 int qla4_82xx_md_rd_32(struct scsi_qla_host *ha, uint32_t off, uint32_t *data)
457 {
458 	uint32_t win_read, off_value;
459 	int rval = QLA_SUCCESS;
460 
461 	off_value  = off & 0xFFFF0000;
462 	writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
463 
464 	/*
465 	 * Read back value to make sure write has gone through before trying
466 	 * to use it.
467 	 */
468 	win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
469 	if (win_read != off_value) {
470 		DEBUG2(ql4_printk(KERN_INFO, ha,
471 				  "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
472 				  __func__, off_value, win_read, off));
473 		rval = QLA_ERROR;
474 	} else {
475 		off_value  = off & 0x0000FFFF;
476 		*data = readl((void __iomem *)(off_value + CRB_INDIRECT_2M +
477 					       ha->nx_pcibase));
478 	}
479 	return rval;
480 }
481 
qla4_82xx_md_wr_32(struct scsi_qla_host * ha,uint32_t off,uint32_t data)482 int qla4_82xx_md_wr_32(struct scsi_qla_host *ha, uint32_t off, uint32_t data)
483 {
484 	uint32_t win_read, off_value;
485 	int rval = QLA_SUCCESS;
486 
487 	off_value  = off & 0xFFFF0000;
488 	writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
489 
490 	/* Read back value to make sure write has gone through before trying
491 	 * to use it.
492 	 */
493 	win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
494 	if (win_read != off_value) {
495 		DEBUG2(ql4_printk(KERN_INFO, ha,
496 				  "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
497 				  __func__, off_value, win_read, off));
498 		rval = QLA_ERROR;
499 	} else {
500 		off_value  = off & 0x0000FFFF;
501 		writel(data, (void __iomem *)(off_value + CRB_INDIRECT_2M +
502 					      ha->nx_pcibase));
503 	}
504 	return rval;
505 }
506 
507 #define IDC_LOCK_TIMEOUT 100000000
508 
509 /**
510  * qla4_82xx_idc_lock - hw_lock
511  * @ha: pointer to adapter structure
512  *
513  * General purpose lock used to synchronize access to
514  * CRB_DEV_STATE, CRB_DEV_REF_COUNT, etc.
515  *
516  * Context: task, can sleep
517  **/
qla4_82xx_idc_lock(struct scsi_qla_host * ha)518 int qla4_82xx_idc_lock(struct scsi_qla_host *ha)
519 {
520 	int done = 0, timeout = 0;
521 
522 	might_sleep();
523 
524 	while (!done) {
525 		/* acquire semaphore5 from PCI HW block */
526 		done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
527 		if (done == 1)
528 			break;
529 		if (timeout >= IDC_LOCK_TIMEOUT)
530 			return -1;
531 
532 		timeout++;
533 		msleep(100);
534 	}
535 	return 0;
536 }
537 
qla4_82xx_idc_unlock(struct scsi_qla_host * ha)538 void qla4_82xx_idc_unlock(struct scsi_qla_host *ha)
539 {
540 	qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
541 }
542 
543 int
qla4_82xx_pci_get_crb_addr_2M(struct scsi_qla_host * ha,ulong * off)544 qla4_82xx_pci_get_crb_addr_2M(struct scsi_qla_host *ha, ulong *off)
545 {
546 	struct crb_128M_2M_sub_block_map *m;
547 
548 	if (*off >= QLA82XX_CRB_MAX)
549 		return -1;
550 
551 	if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
552 		*off = (*off - QLA82XX_PCI_CAMQM) +
553 		    QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
554 		return 0;
555 	}
556 
557 	if (*off < QLA82XX_PCI_CRBSPACE)
558 		return -1;
559 
560 	*off -= QLA82XX_PCI_CRBSPACE;
561 	/*
562 	 * Try direct map
563 	 */
564 
565 	m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
566 
567 	if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
568 		*off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
569 		return 0;
570 	}
571 
572 	/*
573 	 * Not in direct map, use crb window
574 	 */
575 	return 1;
576 }
577 
578 /*
579 * check memory access boundary.
580 * used by test agent. support ddr access only for now
581 */
582 static unsigned long
qla4_82xx_pci_mem_bound_check(struct scsi_qla_host * ha,unsigned long long addr,int size)583 qla4_82xx_pci_mem_bound_check(struct scsi_qla_host *ha,
584 		unsigned long long addr, int size)
585 {
586 	if (!QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
587 	    QLA8XXX_ADDR_DDR_NET_MAX) ||
588 	    !QLA8XXX_ADDR_IN_RANGE(addr + size - 1,
589 	    QLA8XXX_ADDR_DDR_NET, QLA8XXX_ADDR_DDR_NET_MAX) ||
590 	    ((size != 1) && (size != 2) && (size != 4) && (size != 8))) {
591 		return 0;
592 	}
593 	return 1;
594 }
595 
596 static int qla4_82xx_pci_set_window_warning_count;
597 
598 static unsigned long
qla4_82xx_pci_set_window(struct scsi_qla_host * ha,unsigned long long addr)599 qla4_82xx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
600 {
601 	int window;
602 	u32 win_read;
603 
604 	if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
605 	    QLA8XXX_ADDR_DDR_NET_MAX)) {
606 		/* DDR network side */
607 		window = MN_WIN(addr);
608 		ha->ddr_mn_window = window;
609 		qla4_82xx_wr_32(ha, ha->mn_win_crb |
610 		    QLA82XX_PCI_CRBSPACE, window);
611 		win_read = qla4_82xx_rd_32(ha, ha->mn_win_crb |
612 		    QLA82XX_PCI_CRBSPACE);
613 		if ((win_read << 17) != window) {
614 			ql4_printk(KERN_WARNING, ha,
615 			"%s: Written MNwin (0x%x) != Read MNwin (0x%x)\n",
616 			__func__, window, win_read);
617 		}
618 		addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
619 	} else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM0,
620 				QLA8XXX_ADDR_OCM0_MAX)) {
621 		unsigned int temp1;
622 		/* if bits 19:18&17:11 are on */
623 		if ((addr & 0x00ff800) == 0xff800) {
624 			printk("%s: QM access not handled.\n", __func__);
625 			addr = -1UL;
626 		}
627 
628 		window = OCM_WIN(addr);
629 		ha->ddr_mn_window = window;
630 		qla4_82xx_wr_32(ha, ha->mn_win_crb |
631 		    QLA82XX_PCI_CRBSPACE, window);
632 		win_read = qla4_82xx_rd_32(ha, ha->mn_win_crb |
633 		    QLA82XX_PCI_CRBSPACE);
634 		temp1 = ((window & 0x1FF) << 7) |
635 		    ((window & 0x0FFFE0000) >> 17);
636 		if (win_read != temp1) {
637 			printk("%s: Written OCMwin (0x%x) != Read"
638 			    " OCMwin (0x%x)\n", __func__, temp1, win_read);
639 		}
640 		addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
641 
642 	} else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
643 				QLA82XX_P3_ADDR_QDR_NET_MAX)) {
644 		/* QDR network side */
645 		window = MS_WIN(addr);
646 		ha->qdr_sn_window = window;
647 		qla4_82xx_wr_32(ha, ha->ms_win_crb |
648 		    QLA82XX_PCI_CRBSPACE, window);
649 		win_read = qla4_82xx_rd_32(ha,
650 		     ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
651 		if (win_read != window) {
652 			printk("%s: Written MSwin (0x%x) != Read "
653 			    "MSwin (0x%x)\n", __func__, window, win_read);
654 		}
655 		addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
656 
657 	} else {
658 		/*
659 		 * peg gdb frequently accesses memory that doesn't exist,
660 		 * this limits the chit chat so debugging isn't slowed down.
661 		 */
662 		if ((qla4_82xx_pci_set_window_warning_count++ < 8) ||
663 		    (qla4_82xx_pci_set_window_warning_count%64 == 0)) {
664 			printk("%s: Warning:%s Unknown address range!\n",
665 			    __func__, DRIVER_NAME);
666 		}
667 		addr = -1UL;
668 	}
669 	return addr;
670 }
671 
672 /* check if address is in the same windows as the previous access */
qla4_82xx_pci_is_same_window(struct scsi_qla_host * ha,unsigned long long addr)673 static int qla4_82xx_pci_is_same_window(struct scsi_qla_host *ha,
674 		unsigned long long addr)
675 {
676 	int window;
677 	unsigned long long qdr_max;
678 
679 	qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
680 
681 	if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
682 	    QLA8XXX_ADDR_DDR_NET_MAX)) {
683 		/* DDR network side */
684 		BUG();	/* MN access can not come here */
685 	} else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM0,
686 	     QLA8XXX_ADDR_OCM0_MAX)) {
687 		return 1;
688 	} else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM1,
689 	     QLA8XXX_ADDR_OCM1_MAX)) {
690 		return 1;
691 	} else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
692 	    qdr_max)) {
693 		/* QDR network side */
694 		window = ((addr - QLA8XXX_ADDR_QDR_NET) >> 22) & 0x3f;
695 		if (ha->qdr_sn_window == window)
696 			return 1;
697 	}
698 
699 	return 0;
700 }
701 
qla4_82xx_pci_mem_read_direct(struct scsi_qla_host * ha,u64 off,void * data,int size)702 static int qla4_82xx_pci_mem_read_direct(struct scsi_qla_host *ha,
703 		u64 off, void *data, int size)
704 {
705 	unsigned long flags;
706 	void __iomem *addr;
707 	int ret = 0;
708 	u64 start;
709 	void __iomem *mem_ptr = NULL;
710 	unsigned long mem_base;
711 	unsigned long mem_page;
712 
713 	write_lock_irqsave(&ha->hw_lock, flags);
714 
715 	/*
716 	 * If attempting to access unknown address or straddle hw windows,
717 	 * do not access.
718 	 */
719 	start = qla4_82xx_pci_set_window(ha, off);
720 	if ((start == -1UL) ||
721 	    (qla4_82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
722 		write_unlock_irqrestore(&ha->hw_lock, flags);
723 		printk(KERN_ERR"%s out of bound pci memory access. "
724 				"offset is 0x%llx\n", DRIVER_NAME, off);
725 		return -1;
726 	}
727 
728 	addr = qla4_8xxx_pci_base_offsetfset(ha, start);
729 	if (!addr) {
730 		write_unlock_irqrestore(&ha->hw_lock, flags);
731 		mem_base = pci_resource_start(ha->pdev, 0);
732 		mem_page = start & PAGE_MASK;
733 		/* Map two pages whenever user tries to access addresses in two
734 		   consecutive pages.
735 		 */
736 		if (mem_page != ((start + size - 1) & PAGE_MASK))
737 			mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
738 		else
739 			mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
740 
741 		if (mem_ptr == NULL) {
742 			*(u8 *)data = 0;
743 			return -1;
744 		}
745 		addr = mem_ptr;
746 		addr += start & (PAGE_SIZE - 1);
747 		write_lock_irqsave(&ha->hw_lock, flags);
748 	}
749 
750 	switch (size) {
751 	case 1:
752 		*(u8  *)data = readb(addr);
753 		break;
754 	case 2:
755 		*(u16 *)data = readw(addr);
756 		break;
757 	case 4:
758 		*(u32 *)data = readl(addr);
759 		break;
760 	case 8:
761 		*(u64 *)data = readq(addr);
762 		break;
763 	default:
764 		ret = -1;
765 		break;
766 	}
767 	write_unlock_irqrestore(&ha->hw_lock, flags);
768 
769 	if (mem_ptr)
770 		iounmap(mem_ptr);
771 	return ret;
772 }
773 
774 static int
qla4_82xx_pci_mem_write_direct(struct scsi_qla_host * ha,u64 off,void * data,int size)775 qla4_82xx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
776 		void *data, int size)
777 {
778 	unsigned long flags;
779 	void __iomem *addr;
780 	int ret = 0;
781 	u64 start;
782 	void __iomem *mem_ptr = NULL;
783 	unsigned long mem_base;
784 	unsigned long mem_page;
785 
786 	write_lock_irqsave(&ha->hw_lock, flags);
787 
788 	/*
789 	 * If attempting to access unknown address or straddle hw windows,
790 	 * do not access.
791 	 */
792 	start = qla4_82xx_pci_set_window(ha, off);
793 	if ((start == -1UL) ||
794 	    (qla4_82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
795 		write_unlock_irqrestore(&ha->hw_lock, flags);
796 		printk(KERN_ERR"%s out of bound pci memory access. "
797 				"offset is 0x%llx\n", DRIVER_NAME, off);
798 		return -1;
799 	}
800 
801 	addr = qla4_8xxx_pci_base_offsetfset(ha, start);
802 	if (!addr) {
803 		write_unlock_irqrestore(&ha->hw_lock, flags);
804 		mem_base = pci_resource_start(ha->pdev, 0);
805 		mem_page = start & PAGE_MASK;
806 		/* Map two pages whenever user tries to access addresses in two
807 		   consecutive pages.
808 		 */
809 		if (mem_page != ((start + size - 1) & PAGE_MASK))
810 			mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
811 		else
812 			mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
813 		if (mem_ptr == NULL)
814 			return -1;
815 
816 		addr = mem_ptr;
817 		addr += start & (PAGE_SIZE - 1);
818 		write_lock_irqsave(&ha->hw_lock, flags);
819 	}
820 
821 	switch (size) {
822 	case 1:
823 		writeb(*(u8 *)data, addr);
824 		break;
825 	case 2:
826 		writew(*(u16 *)data, addr);
827 		break;
828 	case 4:
829 		writel(*(u32 *)data, addr);
830 		break;
831 	case 8:
832 		writeq(*(u64 *)data, addr);
833 		break;
834 	default:
835 		ret = -1;
836 		break;
837 	}
838 	write_unlock_irqrestore(&ha->hw_lock, flags);
839 	if (mem_ptr)
840 		iounmap(mem_ptr);
841 	return ret;
842 }
843 
844 #define MTU_FUDGE_FACTOR 100
845 
846 static unsigned long
qla4_82xx_decode_crb_addr(unsigned long addr)847 qla4_82xx_decode_crb_addr(unsigned long addr)
848 {
849 	int i;
850 	unsigned long base_addr, offset, pci_base;
851 
852 	if (!qla4_8xxx_crb_table_initialized)
853 		qla4_82xx_crb_addr_transform_setup();
854 
855 	pci_base = ADDR_ERROR;
856 	base_addr = addr & 0xfff00000;
857 	offset = addr & 0x000fffff;
858 
859 	for (i = 0; i < MAX_CRB_XFORM; i++) {
860 		if (crb_addr_xform[i] == base_addr) {
861 			pci_base = i << 20;
862 			break;
863 		}
864 	}
865 	if (pci_base == ADDR_ERROR)
866 		return pci_base;
867 	else
868 		return pci_base + offset;
869 }
870 
871 static long rom_max_timeout = 100;
872 static long qla4_82xx_rom_lock_timeout = 100;
873 
874 /*
875  * Context: task, can_sleep
876  */
877 static int
qla4_82xx_rom_lock(struct scsi_qla_host * ha)878 qla4_82xx_rom_lock(struct scsi_qla_host *ha)
879 {
880 	int done = 0, timeout = 0;
881 
882 	might_sleep();
883 
884 	while (!done) {
885 		/* acquire semaphore2 from PCI HW block */
886 		done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
887 		if (done == 1)
888 			break;
889 		if (timeout >= qla4_82xx_rom_lock_timeout)
890 			return -1;
891 
892 		timeout++;
893 		msleep(20);
894 	}
895 	qla4_82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
896 	return 0;
897 }
898 
899 static void
qla4_82xx_rom_unlock(struct scsi_qla_host * ha)900 qla4_82xx_rom_unlock(struct scsi_qla_host *ha)
901 {
902 	qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
903 }
904 
905 static int
qla4_82xx_wait_rom_done(struct scsi_qla_host * ha)906 qla4_82xx_wait_rom_done(struct scsi_qla_host *ha)
907 {
908 	long timeout = 0;
909 	long done = 0 ;
910 
911 	while (done == 0) {
912 		done = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
913 		done &= 2;
914 		timeout++;
915 		if (timeout >= rom_max_timeout) {
916 			printk("%s: Timeout reached  waiting for rom done",
917 					DRIVER_NAME);
918 			return -1;
919 		}
920 	}
921 	return 0;
922 }
923 
924 static int
qla4_82xx_do_rom_fast_read(struct scsi_qla_host * ha,int addr,int * valp)925 qla4_82xx_do_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
926 {
927 	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
928 	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
929 	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
930 	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
931 	if (qla4_82xx_wait_rom_done(ha)) {
932 		printk("%s: Error waiting for rom done\n", DRIVER_NAME);
933 		return -1;
934 	}
935 	/* reset abyte_cnt and dummy_byte_cnt */
936 	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
937 	udelay(10);
938 	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
939 
940 	*valp = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
941 	return 0;
942 }
943 
944 static int
qla4_82xx_rom_fast_read(struct scsi_qla_host * ha,int addr,int * valp)945 qla4_82xx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
946 {
947 	int ret, loops = 0;
948 
949 	while ((qla4_82xx_rom_lock(ha) != 0) && (loops < 50000)) {
950 		udelay(100);
951 		loops++;
952 	}
953 	if (loops >= 50000) {
954 		ql4_printk(KERN_WARNING, ha, "%s: qla4_82xx_rom_lock failed\n",
955 			   DRIVER_NAME);
956 		return -1;
957 	}
958 	ret = qla4_82xx_do_rom_fast_read(ha, addr, valp);
959 	qla4_82xx_rom_unlock(ha);
960 	return ret;
961 }
962 
963 /*
964  * This routine does CRB initialize sequence
965  * to put the ISP into operational state
966  */
967 static int
qla4_82xx_pinit_from_rom(struct scsi_qla_host * ha,int verbose)968 qla4_82xx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
969 {
970 	int addr, val;
971 	int i ;
972 	struct crb_addr_pair *buf;
973 	unsigned long off;
974 	unsigned offset, n;
975 
976 	struct crb_addr_pair {
977 		long addr;
978 		long data;
979 	};
980 
981 	/* Halt all the indiviual PEGs and other blocks of the ISP */
982 	qla4_82xx_rom_lock(ha);
983 
984 	/* disable all I2Q */
985 	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
986 	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
987 	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
988 	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
989 	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
990 	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
991 
992 	/* disable all niu interrupts */
993 	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
994 	/* disable xge rx/tx */
995 	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
996 	/* disable xg1 rx/tx */
997 	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
998 	/* disable sideband mac */
999 	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1000 	/* disable ap0 mac */
1001 	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1002 	/* disable ap1 mac */
1003 	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1004 
1005 	/* halt sre */
1006 	val = qla4_82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1007 	qla4_82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1008 
1009 	/* halt epg */
1010 	qla4_82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1011 
1012 	/* halt timers */
1013 	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1014 	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1015 	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1016 	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1017 	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1018 	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1019 
1020 	/* halt pegs */
1021 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1022 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1023 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1024 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1025 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1026 	msleep(5);
1027 
1028 	/* big hammer */
1029 	if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
1030 		/* don't reset CAM block on reset */
1031 		qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1032 	else
1033 		qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1034 
1035 	qla4_82xx_rom_unlock(ha);
1036 
1037 	/* Read the signature value from the flash.
1038 	 * Offset 0: Contain signature (0xcafecafe)
1039 	 * Offset 4: Offset and number of addr/value pairs
1040 	 * that present in CRB initialize sequence
1041 	 */
1042 	if (qla4_82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1043 	    qla4_82xx_rom_fast_read(ha, 4, &n) != 0) {
1044 		ql4_printk(KERN_WARNING, ha,
1045 			"[ERROR] Reading crb_init area: n: %08x\n", n);
1046 		return -1;
1047 	}
1048 
1049 	/* Offset in flash = lower 16 bits
1050 	 * Number of enteries = upper 16 bits
1051 	 */
1052 	offset = n & 0xffffU;
1053 	n = (n >> 16) & 0xffffU;
1054 
1055 	/* number of addr/value pair should not exceed 1024 enteries */
1056 	if (n  >= 1024) {
1057 		ql4_printk(KERN_WARNING, ha,
1058 		    "%s: %s:n=0x%x [ERROR] Card flash not initialized.\n",
1059 		    DRIVER_NAME, __func__, n);
1060 		return -1;
1061 	}
1062 
1063 	ql4_printk(KERN_INFO, ha,
1064 		"%s: %d CRB init values found in ROM.\n", DRIVER_NAME, n);
1065 
1066 	buf = kmalloc_array(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
1067 	if (buf == NULL) {
1068 		ql4_printk(KERN_WARNING, ha,
1069 		    "%s: [ERROR] Unable to malloc memory.\n", DRIVER_NAME);
1070 		return -1;
1071 	}
1072 
1073 	for (i = 0; i < n; i++) {
1074 		if (qla4_82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1075 		    qla4_82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) !=
1076 		    0) {
1077 			kfree(buf);
1078 			return -1;
1079 		}
1080 
1081 		buf[i].addr = addr;
1082 		buf[i].data = val;
1083 	}
1084 
1085 	for (i = 0; i < n; i++) {
1086 		/* Translate internal CRB initialization
1087 		 * address to PCI bus address
1088 		 */
1089 		off = qla4_82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1090 		    QLA82XX_PCI_CRBSPACE;
1091 		/* Not all CRB  addr/value pair to be written,
1092 		 * some of them are skipped
1093 		 */
1094 
1095 		/* skip if LS bit is set*/
1096 		if (off & 0x1) {
1097 			DEBUG2(ql4_printk(KERN_WARNING, ha,
1098 			    "Skip CRB init replay for offset = 0x%lx\n", off));
1099 			continue;
1100 		}
1101 
1102 		/* skipping cold reboot MAGIC */
1103 		if (off == QLA82XX_CAM_RAM(0x1fc))
1104 			continue;
1105 
1106 		/* do not reset PCI */
1107 		if (off == (ROMUSB_GLB + 0xbc))
1108 			continue;
1109 
1110 		/* skip core clock, so that firmware can increase the clock */
1111 		if (off == (ROMUSB_GLB + 0xc8))
1112 			continue;
1113 
1114 		/* skip the function enable register */
1115 		if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1116 			continue;
1117 
1118 		if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1119 			continue;
1120 
1121 		if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1122 			continue;
1123 
1124 		if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1125 			continue;
1126 
1127 		if (off == ADDR_ERROR) {
1128 			ql4_printk(KERN_WARNING, ha,
1129 			    "%s: [ERROR] Unknown addr: 0x%08lx\n",
1130 			    DRIVER_NAME, buf[i].addr);
1131 			continue;
1132 		}
1133 
1134 		qla4_82xx_wr_32(ha, off, buf[i].data);
1135 
1136 		/* ISP requires much bigger delay to settle down,
1137 		 * else crb_window returns 0xffffffff
1138 		 */
1139 		if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1140 			msleep(1000);
1141 
1142 		/* ISP requires millisec delay between
1143 		 * successive CRB register updation
1144 		 */
1145 		msleep(1);
1146 	}
1147 
1148 	kfree(buf);
1149 
1150 	/* Resetting the data and instruction cache */
1151 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1152 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1153 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1154 
1155 	/* Clear all protocol processing engines */
1156 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1157 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1158 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1159 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1160 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1161 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1162 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1163 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1164 
1165 	return 0;
1166 }
1167 
1168 /**
1169  * qla4_8xxx_ms_mem_write_128b - Writes data to MS/off-chip memory
1170  * @ha: Pointer to adapter structure
1171  * @addr: Flash address to write to
1172  * @data: Data to be written
1173  * @count: word_count to be written
1174  *
1175  * Return: On success return QLA_SUCCESS
1176  *         On error return QLA_ERROR
1177  **/
qla4_8xxx_ms_mem_write_128b(struct scsi_qla_host * ha,uint64_t addr,uint32_t * data,uint32_t count)1178 int qla4_8xxx_ms_mem_write_128b(struct scsi_qla_host *ha, uint64_t addr,
1179 				uint32_t *data, uint32_t count)
1180 {
1181 	int i, j;
1182 	uint32_t agt_ctrl;
1183 	unsigned long flags;
1184 	int ret_val = QLA_SUCCESS;
1185 
1186 	/* Only 128-bit aligned access */
1187 	if (addr & 0xF) {
1188 		ret_val = QLA_ERROR;
1189 		goto exit_ms_mem_write;
1190 	}
1191 
1192 	write_lock_irqsave(&ha->hw_lock, flags);
1193 
1194 	/* Write address */
1195 	ret_val = ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_HI, 0);
1196 	if (ret_val == QLA_ERROR) {
1197 		ql4_printk(KERN_ERR, ha, "%s: write to AGT_ADDR_HI failed\n",
1198 			   __func__);
1199 		goto exit_ms_mem_write_unlock;
1200 	}
1201 
1202 	for (i = 0; i < count; i++, addr += 16) {
1203 		if (!((QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
1204 					     QLA8XXX_ADDR_QDR_NET_MAX)) ||
1205 		      (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
1206 					     QLA8XXX_ADDR_DDR_NET_MAX)))) {
1207 			ret_val = QLA_ERROR;
1208 			goto exit_ms_mem_write_unlock;
1209 		}
1210 
1211 		ret_val = ha->isp_ops->wr_reg_indirect(ha,
1212 						       MD_MIU_TEST_AGT_ADDR_LO,
1213 						       addr);
1214 		/* Write data */
1215 		ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1216 						MD_MIU_TEST_AGT_WRDATA_LO,
1217 						*data++);
1218 		ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1219 						MD_MIU_TEST_AGT_WRDATA_HI,
1220 						*data++);
1221 		ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1222 						MD_MIU_TEST_AGT_WRDATA_ULO,
1223 						*data++);
1224 		ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1225 						MD_MIU_TEST_AGT_WRDATA_UHI,
1226 						*data++);
1227 		if (ret_val == QLA_ERROR) {
1228 			ql4_printk(KERN_ERR, ha, "%s: write to AGT_WRDATA failed\n",
1229 				   __func__);
1230 			goto exit_ms_mem_write_unlock;
1231 		}
1232 
1233 		/* Check write status */
1234 		ret_val = ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL,
1235 						       MIU_TA_CTL_WRITE_ENABLE);
1236 		ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1237 							MD_MIU_TEST_AGT_CTRL,
1238 							MIU_TA_CTL_WRITE_START);
1239 		if (ret_val == QLA_ERROR) {
1240 			ql4_printk(KERN_ERR, ha, "%s: write to AGT_CTRL failed\n",
1241 				   __func__);
1242 			goto exit_ms_mem_write_unlock;
1243 		}
1244 
1245 		for (j = 0; j < MAX_CTL_CHECK; j++) {
1246 			ret_val = ha->isp_ops->rd_reg_indirect(ha,
1247 							MD_MIU_TEST_AGT_CTRL,
1248 							&agt_ctrl);
1249 			if (ret_val == QLA_ERROR) {
1250 				ql4_printk(KERN_ERR, ha, "%s: failed to read MD_MIU_TEST_AGT_CTRL\n",
1251 					   __func__);
1252 				goto exit_ms_mem_write_unlock;
1253 			}
1254 			if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0)
1255 				break;
1256 		}
1257 
1258 		/* Status check failed */
1259 		if (j >= MAX_CTL_CHECK) {
1260 			printk_ratelimited(KERN_ERR "%s: MS memory write failed!\n",
1261 					   __func__);
1262 			ret_val = QLA_ERROR;
1263 			goto exit_ms_mem_write_unlock;
1264 		}
1265 	}
1266 
1267 exit_ms_mem_write_unlock:
1268 	write_unlock_irqrestore(&ha->hw_lock, flags);
1269 
1270 exit_ms_mem_write:
1271 	return ret_val;
1272 }
1273 
1274 static int
qla4_82xx_load_from_flash(struct scsi_qla_host * ha,uint32_t image_start)1275 qla4_82xx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
1276 {
1277 	int  i, rval = 0;
1278 	long size = 0;
1279 	long flashaddr, memaddr;
1280 	u64 data;
1281 	u32 high, low;
1282 
1283 	flashaddr = memaddr = ha->hw.flt_region_bootload;
1284 	size = (image_start - flashaddr) / 8;
1285 
1286 	DEBUG2(printk("scsi%ld: %s: bootldr=0x%lx, fw_image=0x%x\n",
1287 	    ha->host_no, __func__, flashaddr, image_start));
1288 
1289 	for (i = 0; i < size; i++) {
1290 		if ((qla4_82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1291 		    (qla4_82xx_rom_fast_read(ha, flashaddr + 4,
1292 		    (int *)&high))) {
1293 			rval = -1;
1294 			goto exit_load_from_flash;
1295 		}
1296 		data = ((u64)high << 32) | low ;
1297 		rval = qla4_82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1298 		if (rval)
1299 			goto exit_load_from_flash;
1300 
1301 		flashaddr += 8;
1302 		memaddr   += 8;
1303 
1304 		if (i % 0x1000 == 0)
1305 			msleep(1);
1306 
1307 	}
1308 
1309 	udelay(100);
1310 
1311 	read_lock(&ha->hw_lock);
1312 	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1313 	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1314 	read_unlock(&ha->hw_lock);
1315 
1316 exit_load_from_flash:
1317 	return rval;
1318 }
1319 
qla4_82xx_load_fw(struct scsi_qla_host * ha,uint32_t image_start)1320 static int qla4_82xx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
1321 {
1322 	u32 rst;
1323 
1324 	qla4_82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1325 	if (qla4_82xx_pinit_from_rom(ha, 0) != QLA_SUCCESS) {
1326 		printk(KERN_WARNING "%s: Error during CRB Initialization\n",
1327 		    __func__);
1328 		return QLA_ERROR;
1329 	}
1330 
1331 	udelay(500);
1332 
1333 	/* at this point, QM is in reset. This could be a problem if there are
1334 	 * incoming d* transition queue messages. QM/PCIE could wedge.
1335 	 * To get around this, QM is brought out of reset.
1336 	 */
1337 
1338 	rst = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
1339 	/* unreset qm */
1340 	rst &= ~(1 << 28);
1341 	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
1342 
1343 	if (qla4_82xx_load_from_flash(ha, image_start)) {
1344 		printk("%s: Error trying to load fw from flash!\n", __func__);
1345 		return QLA_ERROR;
1346 	}
1347 
1348 	return QLA_SUCCESS;
1349 }
1350 
1351 int
qla4_82xx_pci_mem_read_2M(struct scsi_qla_host * ha,u64 off,void * data,int size)1352 qla4_82xx_pci_mem_read_2M(struct scsi_qla_host *ha,
1353 		u64 off, void *data, int size)
1354 {
1355 	int i, j = 0, k, start, end, loop, sz[2], off0[2];
1356 	int shift_amount;
1357 	uint32_t temp;
1358 	uint64_t off8, val, mem_crb, word[2] = {0, 0};
1359 
1360 	/*
1361 	 * If not MN, go check for MS or invalid.
1362 	 */
1363 
1364 	if (off >= QLA8XXX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1365 		mem_crb = QLA82XX_CRB_QDR_NET;
1366 	else {
1367 		mem_crb = QLA82XX_CRB_DDR_NET;
1368 		if (qla4_82xx_pci_mem_bound_check(ha, off, size) == 0)
1369 			return qla4_82xx_pci_mem_read_direct(ha,
1370 					off, data, size);
1371 	}
1372 
1373 
1374 	off8 = off & 0xfffffff0;
1375 	off0[0] = off & 0xf;
1376 	sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1377 	shift_amount = 4;
1378 
1379 	loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1380 	off0[1] = 0;
1381 	sz[1] = size - sz[0];
1382 
1383 	for (i = 0; i < loop; i++) {
1384 		temp = off8 + (i << shift_amount);
1385 		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1386 		temp = 0;
1387 		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1388 		temp = MIU_TA_CTL_ENABLE;
1389 		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1390 		temp = MIU_TA_CTL_START_ENABLE;
1391 		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1392 
1393 		for (j = 0; j < MAX_CTL_CHECK; j++) {
1394 			temp = qla4_82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1395 			if ((temp & MIU_TA_CTL_BUSY) == 0)
1396 				break;
1397 		}
1398 
1399 		if (j >= MAX_CTL_CHECK) {
1400 			printk_ratelimited(KERN_ERR
1401 					   "%s: failed to read through agent\n",
1402 					   __func__);
1403 			break;
1404 		}
1405 
1406 		start = off0[i] >> 2;
1407 		end   = (off0[i] + sz[i] - 1) >> 2;
1408 		for (k = start; k <= end; k++) {
1409 			temp = qla4_82xx_rd_32(ha,
1410 				mem_crb + MIU_TEST_AGT_RDDATA(k));
1411 			word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1412 		}
1413 	}
1414 
1415 	if (j >= MAX_CTL_CHECK)
1416 		return -1;
1417 
1418 	if ((off0[0] & 7) == 0) {
1419 		val = word[0];
1420 	} else {
1421 		val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1422 		((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1423 	}
1424 
1425 	switch (size) {
1426 	case 1:
1427 		*(uint8_t  *)data = val;
1428 		break;
1429 	case 2:
1430 		*(uint16_t *)data = val;
1431 		break;
1432 	case 4:
1433 		*(uint32_t *)data = val;
1434 		break;
1435 	case 8:
1436 		*(uint64_t *)data = val;
1437 		break;
1438 	}
1439 	return 0;
1440 }
1441 
1442 int
qla4_82xx_pci_mem_write_2M(struct scsi_qla_host * ha,u64 off,void * data,int size)1443 qla4_82xx_pci_mem_write_2M(struct scsi_qla_host *ha,
1444 		u64 off, void *data, int size)
1445 {
1446 	int i, j, ret = 0, loop, sz[2], off0;
1447 	int scale, shift_amount, startword;
1448 	uint32_t temp;
1449 	uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1450 
1451 	/*
1452 	 * If not MN, go check for MS or invalid.
1453 	 */
1454 	if (off >= QLA8XXX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1455 		mem_crb = QLA82XX_CRB_QDR_NET;
1456 	else {
1457 		mem_crb = QLA82XX_CRB_DDR_NET;
1458 		if (qla4_82xx_pci_mem_bound_check(ha, off, size) == 0)
1459 			return qla4_82xx_pci_mem_write_direct(ha,
1460 					off, data, size);
1461 	}
1462 
1463 	off0 = off & 0x7;
1464 	sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1465 	sz[1] = size - sz[0];
1466 
1467 	off8 = off & 0xfffffff0;
1468 	loop = (((off & 0xf) + size - 1) >> 4) + 1;
1469 	shift_amount = 4;
1470 	scale = 2;
1471 	startword = (off & 0xf)/8;
1472 
1473 	for (i = 0; i < loop; i++) {
1474 		if (qla4_82xx_pci_mem_read_2M(ha, off8 +
1475 		    (i << shift_amount), &word[i * scale], 8))
1476 			return -1;
1477 	}
1478 
1479 	switch (size) {
1480 	case 1:
1481 		tmpw = *((uint8_t *)data);
1482 		break;
1483 	case 2:
1484 		tmpw = *((uint16_t *)data);
1485 		break;
1486 	case 4:
1487 		tmpw = *((uint32_t *)data);
1488 		break;
1489 	case 8:
1490 	default:
1491 		tmpw = *((uint64_t *)data);
1492 		break;
1493 	}
1494 
1495 	if (sz[0] == 8)
1496 		word[startword] = tmpw;
1497 	else {
1498 		word[startword] &=
1499 		    ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1500 		word[startword] |= tmpw << (off0 * 8);
1501 	}
1502 
1503 	if (sz[1] != 0) {
1504 		word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1505 		word[startword+1] |= tmpw >> (sz[0] * 8);
1506 	}
1507 
1508 	for (i = 0; i < loop; i++) {
1509 		temp = off8 + (i << shift_amount);
1510 		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1511 		temp = 0;
1512 		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1513 		temp = word[i * scale] & 0xffffffff;
1514 		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1515 		temp = (word[i * scale] >> 32) & 0xffffffff;
1516 		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1517 		temp = word[i*scale + 1] & 0xffffffff;
1518 		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_LO,
1519 		    temp);
1520 		temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1521 		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_HI,
1522 		    temp);
1523 
1524 		temp = MIU_TA_CTL_WRITE_ENABLE;
1525 		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1526 		temp = MIU_TA_CTL_WRITE_START;
1527 		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1528 
1529 		for (j = 0; j < MAX_CTL_CHECK; j++) {
1530 			temp = qla4_82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1531 			if ((temp & MIU_TA_CTL_BUSY) == 0)
1532 				break;
1533 		}
1534 
1535 		if (j >= MAX_CTL_CHECK) {
1536 			if (printk_ratelimit())
1537 				ql4_printk(KERN_ERR, ha,
1538 					   "%s: failed to read through agent\n",
1539 					   __func__);
1540 			ret = -1;
1541 			break;
1542 		}
1543 	}
1544 
1545 	return ret;
1546 }
1547 
qla4_82xx_cmdpeg_ready(struct scsi_qla_host * ha,int pegtune_val)1548 static int qla4_82xx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
1549 {
1550 	u32 val = 0;
1551 	int retries = 60;
1552 
1553 	if (!pegtune_val) {
1554 		do {
1555 			val = qla4_82xx_rd_32(ha, CRB_CMDPEG_STATE);
1556 			if ((val == PHAN_INITIALIZE_COMPLETE) ||
1557 			    (val == PHAN_INITIALIZE_ACK))
1558 				return 0;
1559 			set_current_state(TASK_UNINTERRUPTIBLE);
1560 			schedule_timeout(500);
1561 
1562 		} while (--retries);
1563 
1564 		if (!retries) {
1565 			pegtune_val = qla4_82xx_rd_32(ha,
1566 				QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1567 			printk(KERN_WARNING "%s: init failed, "
1568 				"pegtune_val = %x\n", __func__, pegtune_val);
1569 			return -1;
1570 		}
1571 	}
1572 	return 0;
1573 }
1574 
qla4_82xx_rcvpeg_ready(struct scsi_qla_host * ha)1575 static int qla4_82xx_rcvpeg_ready(struct scsi_qla_host *ha)
1576 {
1577 	uint32_t state = 0;
1578 	int loops = 0;
1579 
1580 	/* Window 1 call */
1581 	read_lock(&ha->hw_lock);
1582 	state = qla4_82xx_rd_32(ha, CRB_RCVPEG_STATE);
1583 	read_unlock(&ha->hw_lock);
1584 
1585 	while ((state != PHAN_PEG_RCV_INITIALIZED) && (loops < 30000)) {
1586 		udelay(100);
1587 		/* Window 1 call */
1588 		read_lock(&ha->hw_lock);
1589 		state = qla4_82xx_rd_32(ha, CRB_RCVPEG_STATE);
1590 		read_unlock(&ha->hw_lock);
1591 
1592 		loops++;
1593 	}
1594 
1595 	if (loops >= 30000) {
1596 		DEBUG2(ql4_printk(KERN_INFO, ha,
1597 		    "Receive Peg initialization not complete: 0x%x.\n", state));
1598 		return QLA_ERROR;
1599 	}
1600 
1601 	return QLA_SUCCESS;
1602 }
1603 
1604 void
qla4_8xxx_set_drv_active(struct scsi_qla_host * ha)1605 qla4_8xxx_set_drv_active(struct scsi_qla_host *ha)
1606 {
1607 	uint32_t drv_active;
1608 
1609 	drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1610 
1611 	/*
1612 	 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1613 	 * shift 1 by func_num to set a bit for the function.
1614 	 * For ISP8022, drv_active has 4 bits per function
1615 	 */
1616 	if (is_qla8032(ha) || is_qla8042(ha))
1617 		drv_active |= (1 << ha->func_num);
1618 	else
1619 		drv_active |= (1 << (ha->func_num * 4));
1620 
1621 	ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
1622 		   __func__, ha->host_no, drv_active);
1623 	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_ACTIVE, drv_active);
1624 }
1625 
1626 void
qla4_8xxx_clear_drv_active(struct scsi_qla_host * ha)1627 qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha)
1628 {
1629 	uint32_t drv_active;
1630 
1631 	drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1632 
1633 	/*
1634 	 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1635 	 * shift 1 by func_num to set a bit for the function.
1636 	 * For ISP8022, drv_active has 4 bits per function
1637 	 */
1638 	if (is_qla8032(ha) || is_qla8042(ha))
1639 		drv_active &= ~(1 << (ha->func_num));
1640 	else
1641 		drv_active &= ~(1 << (ha->func_num * 4));
1642 
1643 	ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
1644 		   __func__, ha->host_no, drv_active);
1645 	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_ACTIVE, drv_active);
1646 }
1647 
qla4_8xxx_need_reset(struct scsi_qla_host * ha)1648 inline int qla4_8xxx_need_reset(struct scsi_qla_host *ha)
1649 {
1650 	uint32_t drv_state, drv_active;
1651 	int rval;
1652 
1653 	drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1654 	drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1655 
1656 	/*
1657 	 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1658 	 * shift 1 by func_num to set a bit for the function.
1659 	 * For ISP8022, drv_active has 4 bits per function
1660 	 */
1661 	if (is_qla8032(ha) || is_qla8042(ha))
1662 		rval = drv_state & (1 << ha->func_num);
1663 	else
1664 		rval = drv_state & (1 << (ha->func_num * 4));
1665 
1666 	if ((test_bit(AF_EEH_BUSY, &ha->flags)) && drv_active)
1667 		rval = 1;
1668 
1669 	return rval;
1670 }
1671 
qla4_8xxx_set_rst_ready(struct scsi_qla_host * ha)1672 void qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha)
1673 {
1674 	uint32_t drv_state;
1675 
1676 	drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1677 
1678 	/*
1679 	 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1680 	 * shift 1 by func_num to set a bit for the function.
1681 	 * For ISP8022, drv_active has 4 bits per function
1682 	 */
1683 	if (is_qla8032(ha) || is_qla8042(ha))
1684 		drv_state |= (1 << ha->func_num);
1685 	else
1686 		drv_state |= (1 << (ha->func_num * 4));
1687 
1688 	ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
1689 		   __func__, ha->host_no, drv_state);
1690 	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, drv_state);
1691 }
1692 
qla4_8xxx_clear_rst_ready(struct scsi_qla_host * ha)1693 void qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha)
1694 {
1695 	uint32_t drv_state;
1696 
1697 	drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1698 
1699 	/*
1700 	 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1701 	 * shift 1 by func_num to set a bit for the function.
1702 	 * For ISP8022, drv_active has 4 bits per function
1703 	 */
1704 	if (is_qla8032(ha) || is_qla8042(ha))
1705 		drv_state &= ~(1 << ha->func_num);
1706 	else
1707 		drv_state &= ~(1 << (ha->func_num * 4));
1708 
1709 	ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
1710 		   __func__, ha->host_no, drv_state);
1711 	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, drv_state);
1712 }
1713 
1714 static inline void
qla4_8xxx_set_qsnt_ready(struct scsi_qla_host * ha)1715 qla4_8xxx_set_qsnt_ready(struct scsi_qla_host *ha)
1716 {
1717 	uint32_t qsnt_state;
1718 
1719 	qsnt_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1720 
1721 	/*
1722 	 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1723 	 * shift 1 by func_num to set a bit for the function.
1724 	 * For ISP8022, drv_active has 4 bits per function.
1725 	 */
1726 	if (is_qla8032(ha) || is_qla8042(ha))
1727 		qsnt_state |= (1 << ha->func_num);
1728 	else
1729 		qsnt_state |= (2 << (ha->func_num * 4));
1730 
1731 	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, qsnt_state);
1732 }
1733 
1734 
1735 static int
qla4_82xx_start_firmware(struct scsi_qla_host * ha,uint32_t image_start)1736 qla4_82xx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
1737 {
1738 	uint16_t lnk;
1739 
1740 	/* scrub dma mask expansion register */
1741 	qla4_82xx_wr_32(ha, CRB_DMA_SHIFT, 0x55555555);
1742 
1743 	/* Overwrite stale initialization register values */
1744 	qla4_82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1745 	qla4_82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
1746 	qla4_82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
1747 	qla4_82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
1748 
1749 	if (qla4_82xx_load_fw(ha, image_start) != QLA_SUCCESS) {
1750 		printk("%s: Error trying to start fw!\n", __func__);
1751 		return QLA_ERROR;
1752 	}
1753 
1754 	/* Handshake with the card before we register the devices. */
1755 	if (qla4_82xx_cmdpeg_ready(ha, 0) != QLA_SUCCESS) {
1756 		printk("%s: Error during card handshake!\n", __func__);
1757 		return QLA_ERROR;
1758 	}
1759 
1760 	/* Negotiated Link width */
1761 	pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
1762 	ha->link_width = (lnk >> 4) & 0x3f;
1763 
1764 	/* Synchronize with Receive peg */
1765 	return qla4_82xx_rcvpeg_ready(ha);
1766 }
1767 
qla4_82xx_try_start_fw(struct scsi_qla_host * ha)1768 int qla4_82xx_try_start_fw(struct scsi_qla_host *ha)
1769 {
1770 	int rval;
1771 
1772 	/*
1773 	 * FW Load priority:
1774 	 * 1) Operational firmware residing in flash.
1775 	 * 2) Fail
1776 	 */
1777 
1778 	ql4_printk(KERN_INFO, ha,
1779 	    "FW: Retrieving flash offsets from FLT/FDT ...\n");
1780 	rval = qla4_8xxx_get_flash_info(ha);
1781 	if (rval != QLA_SUCCESS)
1782 		return rval;
1783 
1784 	ql4_printk(KERN_INFO, ha,
1785 	    "FW: Attempting to load firmware from flash...\n");
1786 	rval = qla4_82xx_start_firmware(ha, ha->hw.flt_region_fw);
1787 
1788 	if (rval != QLA_SUCCESS) {
1789 		ql4_printk(KERN_ERR, ha, "FW: Load firmware from flash"
1790 		    " FAILED...\n");
1791 		return rval;
1792 	}
1793 
1794 	return rval;
1795 }
1796 
qla4_82xx_rom_lock_recovery(struct scsi_qla_host * ha)1797 void qla4_82xx_rom_lock_recovery(struct scsi_qla_host *ha)
1798 {
1799 	if (qla4_82xx_rom_lock(ha)) {
1800 		/* Someone else is holding the lock. */
1801 		dev_info(&ha->pdev->dev, "Resetting rom_lock\n");
1802 	}
1803 
1804 	/*
1805 	 * Either we got the lock, or someone
1806 	 * else died while holding it.
1807 	 * In either case, unlock.
1808 	 */
1809 	qla4_82xx_rom_unlock(ha);
1810 }
1811 
ql4_84xx_poll_wait_for_ready(struct scsi_qla_host * ha,uint32_t addr1,uint32_t mask)1812 static uint32_t ql4_84xx_poll_wait_for_ready(struct scsi_qla_host *ha,
1813 					     uint32_t addr1, uint32_t mask)
1814 {
1815 	unsigned long timeout;
1816 	uint32_t rval = QLA_SUCCESS;
1817 	uint32_t temp;
1818 
1819 	timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
1820 	do {
1821 		ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
1822 		if ((temp & mask) != 0)
1823 			break;
1824 
1825 		if (time_after_eq(jiffies, timeout)) {
1826 			ql4_printk(KERN_INFO, ha, "Error in processing rdmdio entry\n");
1827 			return QLA_ERROR;
1828 		}
1829 	} while (1);
1830 
1831 	return rval;
1832 }
1833 
ql4_84xx_ipmdio_rd_reg(struct scsi_qla_host * ha,uint32_t addr1,uint32_t addr3,uint32_t mask,uint32_t addr,uint32_t * data_ptr)1834 static uint32_t ql4_84xx_ipmdio_rd_reg(struct scsi_qla_host *ha, uint32_t addr1,
1835 				uint32_t addr3, uint32_t mask, uint32_t addr,
1836 				uint32_t *data_ptr)
1837 {
1838 	int rval = QLA_SUCCESS;
1839 	uint32_t temp;
1840 	uint32_t data;
1841 
1842 	rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1843 	if (rval)
1844 		goto exit_ipmdio_rd_reg;
1845 
1846 	temp = (0x40000000 | addr);
1847 	ha->isp_ops->wr_reg_indirect(ha, addr1, temp);
1848 
1849 	rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1850 	if (rval)
1851 		goto exit_ipmdio_rd_reg;
1852 
1853 	ha->isp_ops->rd_reg_indirect(ha, addr3, &data);
1854 	*data_ptr = data;
1855 
1856 exit_ipmdio_rd_reg:
1857 	return rval;
1858 }
1859 
1860 
ql4_84xx_poll_wait_ipmdio_bus_idle(struct scsi_qla_host * ha,uint32_t addr1,uint32_t addr2,uint32_t addr3,uint32_t mask)1861 static uint32_t ql4_84xx_poll_wait_ipmdio_bus_idle(struct scsi_qla_host *ha,
1862 						    uint32_t addr1,
1863 						    uint32_t addr2,
1864 						    uint32_t addr3,
1865 						    uint32_t mask)
1866 {
1867 	unsigned long timeout;
1868 	uint32_t temp;
1869 	uint32_t rval = QLA_SUCCESS;
1870 
1871 	timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
1872 	do {
1873 		ql4_84xx_ipmdio_rd_reg(ha, addr1, addr3, mask, addr2, &temp);
1874 		if ((temp & 0x1) != 1)
1875 			break;
1876 		if (time_after_eq(jiffies, timeout)) {
1877 			ql4_printk(KERN_INFO, ha, "Error in processing mdiobus idle\n");
1878 			return QLA_ERROR;
1879 		}
1880 	} while (1);
1881 
1882 	return rval;
1883 }
1884 
ql4_84xx_ipmdio_wr_reg(struct scsi_qla_host * ha,uint32_t addr1,uint32_t addr3,uint32_t mask,uint32_t addr,uint32_t value)1885 static int ql4_84xx_ipmdio_wr_reg(struct scsi_qla_host *ha,
1886 				  uint32_t addr1, uint32_t addr3,
1887 				  uint32_t mask, uint32_t addr,
1888 				  uint32_t value)
1889 {
1890 	int rval = QLA_SUCCESS;
1891 
1892 	rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1893 	if (rval)
1894 		goto exit_ipmdio_wr_reg;
1895 
1896 	ha->isp_ops->wr_reg_indirect(ha, addr3, value);
1897 	ha->isp_ops->wr_reg_indirect(ha, addr1, addr);
1898 
1899 	rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1900 	if (rval)
1901 		goto exit_ipmdio_wr_reg;
1902 
1903 exit_ipmdio_wr_reg:
1904 	return rval;
1905 }
1906 
qla4_8xxx_minidump_process_rdcrb(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)1907 static void qla4_8xxx_minidump_process_rdcrb(struct scsi_qla_host *ha,
1908 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
1909 				uint32_t **d_ptr)
1910 {
1911 	uint32_t r_addr, r_stride, loop_cnt, i, r_value;
1912 	struct qla8xxx_minidump_entry_crb *crb_hdr;
1913 	uint32_t *data_ptr = *d_ptr;
1914 
1915 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
1916 	crb_hdr = (struct qla8xxx_minidump_entry_crb *)entry_hdr;
1917 	r_addr = crb_hdr->addr;
1918 	r_stride = crb_hdr->crb_strd.addr_stride;
1919 	loop_cnt = crb_hdr->op_count;
1920 
1921 	for (i = 0; i < loop_cnt; i++) {
1922 		ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
1923 		*data_ptr++ = cpu_to_le32(r_addr);
1924 		*data_ptr++ = cpu_to_le32(r_value);
1925 		r_addr += r_stride;
1926 	}
1927 	*d_ptr = data_ptr;
1928 }
1929 
qla4_83xx_check_dma_engine_state(struct scsi_qla_host * ha)1930 static int qla4_83xx_check_dma_engine_state(struct scsi_qla_host *ha)
1931 {
1932 	int rval = QLA_SUCCESS;
1933 	uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
1934 	uint64_t dma_base_addr = 0;
1935 	struct qla4_8xxx_minidump_template_hdr *tmplt_hdr = NULL;
1936 
1937 	tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
1938 							ha->fw_dump_tmplt_hdr;
1939 	dma_eng_num =
1940 		tmplt_hdr->saved_state_array[QLA83XX_PEX_DMA_ENGINE_INDEX];
1941 	dma_base_addr = QLA83XX_PEX_DMA_BASE_ADDRESS +
1942 				(dma_eng_num * QLA83XX_PEX_DMA_NUM_OFFSET);
1943 
1944 	/* Read the pex-dma's command-status-and-control register. */
1945 	rval = ha->isp_ops->rd_reg_indirect(ha,
1946 			(dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL),
1947 			&cmd_sts_and_cntrl);
1948 
1949 	if (rval)
1950 		return QLA_ERROR;
1951 
1952 	/* Check if requested pex-dma engine is available. */
1953 	if (cmd_sts_and_cntrl & BIT_31)
1954 		return QLA_SUCCESS;
1955 	else
1956 		return QLA_ERROR;
1957 }
1958 
qla4_83xx_start_pex_dma(struct scsi_qla_host * ha,struct qla4_83xx_minidump_entry_rdmem_pex_dma * m_hdr)1959 static int qla4_83xx_start_pex_dma(struct scsi_qla_host *ha,
1960 			   struct qla4_83xx_minidump_entry_rdmem_pex_dma *m_hdr)
1961 {
1962 	int rval = QLA_SUCCESS, wait = 0;
1963 	uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
1964 	uint64_t dma_base_addr = 0;
1965 	struct qla4_8xxx_minidump_template_hdr *tmplt_hdr = NULL;
1966 
1967 	tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
1968 							ha->fw_dump_tmplt_hdr;
1969 	dma_eng_num =
1970 		tmplt_hdr->saved_state_array[QLA83XX_PEX_DMA_ENGINE_INDEX];
1971 	dma_base_addr = QLA83XX_PEX_DMA_BASE_ADDRESS +
1972 				(dma_eng_num * QLA83XX_PEX_DMA_NUM_OFFSET);
1973 
1974 	rval = ha->isp_ops->wr_reg_indirect(ha,
1975 				dma_base_addr + QLA83XX_PEX_DMA_CMD_ADDR_LOW,
1976 				m_hdr->desc_card_addr);
1977 	if (rval)
1978 		goto error_exit;
1979 
1980 	rval = ha->isp_ops->wr_reg_indirect(ha,
1981 			      dma_base_addr + QLA83XX_PEX_DMA_CMD_ADDR_HIGH, 0);
1982 	if (rval)
1983 		goto error_exit;
1984 
1985 	rval = ha->isp_ops->wr_reg_indirect(ha,
1986 			      dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL,
1987 			      m_hdr->start_dma_cmd);
1988 	if (rval)
1989 		goto error_exit;
1990 
1991 	/* Wait for dma operation to complete. */
1992 	for (wait = 0; wait < QLA83XX_PEX_DMA_MAX_WAIT; wait++) {
1993 		rval = ha->isp_ops->rd_reg_indirect(ha,
1994 			    (dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL),
1995 			    &cmd_sts_and_cntrl);
1996 		if (rval)
1997 			goto error_exit;
1998 
1999 		if ((cmd_sts_and_cntrl & BIT_1) == 0)
2000 			break;
2001 		else
2002 			udelay(10);
2003 	}
2004 
2005 	/* Wait a max of 100 ms, otherwise fallback to rdmem entry read */
2006 	if (wait >= QLA83XX_PEX_DMA_MAX_WAIT) {
2007 		rval = QLA_ERROR;
2008 		goto error_exit;
2009 	}
2010 
2011 error_exit:
2012 	return rval;
2013 }
2014 
qla4_8xxx_minidump_pex_dma_read(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2015 static int qla4_8xxx_minidump_pex_dma_read(struct scsi_qla_host *ha,
2016 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2017 				uint32_t **d_ptr)
2018 {
2019 	int rval = QLA_SUCCESS;
2020 	struct qla4_83xx_minidump_entry_rdmem_pex_dma *m_hdr = NULL;
2021 	uint32_t size, read_size;
2022 	uint8_t *data_ptr = (uint8_t *)*d_ptr;
2023 	void *rdmem_buffer = NULL;
2024 	dma_addr_t rdmem_dma;
2025 	struct qla4_83xx_pex_dma_descriptor dma_desc;
2026 
2027 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2028 
2029 	rval = qla4_83xx_check_dma_engine_state(ha);
2030 	if (rval != QLA_SUCCESS) {
2031 		DEBUG2(ql4_printk(KERN_INFO, ha,
2032 				  "%s: DMA engine not available. Fallback to rdmem-read.\n",
2033 				  __func__));
2034 		return QLA_ERROR;
2035 	}
2036 
2037 	m_hdr = (struct qla4_83xx_minidump_entry_rdmem_pex_dma *)entry_hdr;
2038 	rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev,
2039 					  QLA83XX_PEX_DMA_READ_SIZE,
2040 					  &rdmem_dma, GFP_KERNEL);
2041 	if (!rdmem_buffer) {
2042 		DEBUG2(ql4_printk(KERN_INFO, ha,
2043 				  "%s: Unable to allocate rdmem dma buffer\n",
2044 				  __func__));
2045 		return QLA_ERROR;
2046 	}
2047 
2048 	/* Prepare pex-dma descriptor to be written to MS memory. */
2049 	/* dma-desc-cmd layout:
2050 	 *              0-3: dma-desc-cmd 0-3
2051 	 *              4-7: pcid function number
2052 	 *              8-15: dma-desc-cmd 8-15
2053 	 */
2054 	dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f);
2055 	dma_desc.cmd.dma_desc_cmd |= ((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4);
2056 	dma_desc.dma_bus_addr = rdmem_dma;
2057 
2058 	size = 0;
2059 	read_size = 0;
2060 	/*
2061 	 * Perform rdmem operation using pex-dma.
2062 	 * Prepare dma in chunks of QLA83XX_PEX_DMA_READ_SIZE.
2063 	 */
2064 	while (read_size < m_hdr->read_data_size) {
2065 		if (m_hdr->read_data_size - read_size >=
2066 		    QLA83XX_PEX_DMA_READ_SIZE)
2067 			size = QLA83XX_PEX_DMA_READ_SIZE;
2068 		else {
2069 			size = (m_hdr->read_data_size - read_size);
2070 
2071 			if (rdmem_buffer)
2072 				dma_free_coherent(&ha->pdev->dev,
2073 						  QLA83XX_PEX_DMA_READ_SIZE,
2074 						  rdmem_buffer, rdmem_dma);
2075 
2076 			rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev, size,
2077 							  &rdmem_dma,
2078 							  GFP_KERNEL);
2079 			if (!rdmem_buffer) {
2080 				DEBUG2(ql4_printk(KERN_INFO, ha,
2081 						  "%s: Unable to allocate rdmem dma buffer\n",
2082 						  __func__));
2083 				return QLA_ERROR;
2084 			}
2085 			dma_desc.dma_bus_addr = rdmem_dma;
2086 		}
2087 
2088 		dma_desc.src_addr = m_hdr->read_addr + read_size;
2089 		dma_desc.cmd.read_data_size = size;
2090 
2091 		/* Prepare: Write pex-dma descriptor to MS memory. */
2092 		rval = qla4_8xxx_ms_mem_write_128b(ha,
2093 			      (uint64_t)m_hdr->desc_card_addr,
2094 			      (uint32_t *)&dma_desc,
2095 			      (sizeof(struct qla4_83xx_pex_dma_descriptor)/16));
2096 		if (rval != QLA_SUCCESS) {
2097 			ql4_printk(KERN_INFO, ha,
2098 				   "%s: Error writing rdmem-dma-init to MS !!!\n",
2099 				   __func__);
2100 			goto error_exit;
2101 		}
2102 
2103 		DEBUG2(ql4_printk(KERN_INFO, ha,
2104 				  "%s: Dma-desc: Instruct for rdmem dma (size 0x%x).\n",
2105 				  __func__, size));
2106 		/* Execute: Start pex-dma operation. */
2107 		rval = qla4_83xx_start_pex_dma(ha, m_hdr);
2108 		if (rval != QLA_SUCCESS) {
2109 			DEBUG2(ql4_printk(KERN_INFO, ha,
2110 					  "scsi(%ld): start-pex-dma failed rval=0x%x\n",
2111 					  ha->host_no, rval));
2112 			goto error_exit;
2113 		}
2114 
2115 		memcpy(data_ptr, rdmem_buffer, size);
2116 		data_ptr += size;
2117 		read_size += size;
2118 	}
2119 
2120 	DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s\n", __func__));
2121 
2122 	*d_ptr = (uint32_t *)data_ptr;
2123 
2124 error_exit:
2125 	if (rdmem_buffer)
2126 		dma_free_coherent(&ha->pdev->dev, size, rdmem_buffer,
2127 				  rdmem_dma);
2128 
2129 	return rval;
2130 }
2131 
qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2132 static int qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host *ha,
2133 				 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2134 				 uint32_t **d_ptr)
2135 {
2136 	uint32_t addr, r_addr, c_addr, t_r_addr;
2137 	uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2138 	unsigned long p_wait, w_time, p_mask;
2139 	uint32_t c_value_w, c_value_r;
2140 	struct qla8xxx_minidump_entry_cache *cache_hdr;
2141 	int rval = QLA_ERROR;
2142 	uint32_t *data_ptr = *d_ptr;
2143 
2144 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2145 	cache_hdr = (struct qla8xxx_minidump_entry_cache *)entry_hdr;
2146 
2147 	loop_count = cache_hdr->op_count;
2148 	r_addr = cache_hdr->read_addr;
2149 	c_addr = cache_hdr->control_addr;
2150 	c_value_w = cache_hdr->cache_ctrl.write_value;
2151 
2152 	t_r_addr = cache_hdr->tag_reg_addr;
2153 	t_value = cache_hdr->addr_ctrl.init_tag_value;
2154 	r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2155 	p_wait = cache_hdr->cache_ctrl.poll_wait;
2156 	p_mask = cache_hdr->cache_ctrl.poll_mask;
2157 
2158 	for (i = 0; i < loop_count; i++) {
2159 		ha->isp_ops->wr_reg_indirect(ha, t_r_addr, t_value);
2160 
2161 		if (c_value_w)
2162 			ha->isp_ops->wr_reg_indirect(ha, c_addr, c_value_w);
2163 
2164 		if (p_mask) {
2165 			w_time = jiffies + p_wait;
2166 			do {
2167 				ha->isp_ops->rd_reg_indirect(ha, c_addr,
2168 							     &c_value_r);
2169 				if ((c_value_r & p_mask) == 0) {
2170 					break;
2171 				} else if (time_after_eq(jiffies, w_time)) {
2172 					/* capturing dump failed */
2173 					return rval;
2174 				}
2175 			} while (1);
2176 		}
2177 
2178 		addr = r_addr;
2179 		for (k = 0; k < r_cnt; k++) {
2180 			ha->isp_ops->rd_reg_indirect(ha, addr, &r_value);
2181 			*data_ptr++ = cpu_to_le32(r_value);
2182 			addr += cache_hdr->read_ctrl.read_addr_stride;
2183 		}
2184 
2185 		t_value += cache_hdr->addr_ctrl.tag_value_stride;
2186 	}
2187 	*d_ptr = data_ptr;
2188 	return QLA_SUCCESS;
2189 }
2190 
qla4_8xxx_minidump_process_control(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr)2191 static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
2192 				struct qla8xxx_minidump_entry_hdr *entry_hdr)
2193 {
2194 	struct qla8xxx_minidump_entry_crb *crb_entry;
2195 	uint32_t read_value, opcode, poll_time, addr, index, rval = QLA_SUCCESS;
2196 	uint32_t crb_addr;
2197 	unsigned long wtime;
2198 	struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
2199 	int i;
2200 
2201 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2202 	tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
2203 						ha->fw_dump_tmplt_hdr;
2204 	crb_entry = (struct qla8xxx_minidump_entry_crb *)entry_hdr;
2205 
2206 	crb_addr = crb_entry->addr;
2207 	for (i = 0; i < crb_entry->op_count; i++) {
2208 		opcode = crb_entry->crb_ctrl.opcode;
2209 		if (opcode & QLA8XXX_DBG_OPCODE_WR) {
2210 			ha->isp_ops->wr_reg_indirect(ha, crb_addr,
2211 						     crb_entry->value_1);
2212 			opcode &= ~QLA8XXX_DBG_OPCODE_WR;
2213 		}
2214 		if (opcode & QLA8XXX_DBG_OPCODE_RW) {
2215 			ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2216 			ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2217 			opcode &= ~QLA8XXX_DBG_OPCODE_RW;
2218 		}
2219 		if (opcode & QLA8XXX_DBG_OPCODE_AND) {
2220 			ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2221 			read_value &= crb_entry->value_2;
2222 			opcode &= ~QLA8XXX_DBG_OPCODE_AND;
2223 			if (opcode & QLA8XXX_DBG_OPCODE_OR) {
2224 				read_value |= crb_entry->value_3;
2225 				opcode &= ~QLA8XXX_DBG_OPCODE_OR;
2226 			}
2227 			ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2228 		}
2229 		if (opcode & QLA8XXX_DBG_OPCODE_OR) {
2230 			ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2231 			read_value |= crb_entry->value_3;
2232 			ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2233 			opcode &= ~QLA8XXX_DBG_OPCODE_OR;
2234 		}
2235 		if (opcode & QLA8XXX_DBG_OPCODE_POLL) {
2236 			poll_time = crb_entry->crb_strd.poll_timeout;
2237 			wtime = jiffies + poll_time;
2238 			ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2239 
2240 			do {
2241 				if ((read_value & crb_entry->value_2) ==
2242 				    crb_entry->value_1) {
2243 					break;
2244 				} else if (time_after_eq(jiffies, wtime)) {
2245 					/* capturing dump failed */
2246 					rval = QLA_ERROR;
2247 					break;
2248 				} else {
2249 					ha->isp_ops->rd_reg_indirect(ha,
2250 							crb_addr, &read_value);
2251 				}
2252 			} while (1);
2253 			opcode &= ~QLA8XXX_DBG_OPCODE_POLL;
2254 		}
2255 
2256 		if (opcode & QLA8XXX_DBG_OPCODE_RDSTATE) {
2257 			if (crb_entry->crb_strd.state_index_a) {
2258 				index = crb_entry->crb_strd.state_index_a;
2259 				addr = tmplt_hdr->saved_state_array[index];
2260 			} else {
2261 				addr = crb_addr;
2262 			}
2263 
2264 			ha->isp_ops->rd_reg_indirect(ha, addr, &read_value);
2265 			index = crb_entry->crb_ctrl.state_index_v;
2266 			tmplt_hdr->saved_state_array[index] = read_value;
2267 			opcode &= ~QLA8XXX_DBG_OPCODE_RDSTATE;
2268 		}
2269 
2270 		if (opcode & QLA8XXX_DBG_OPCODE_WRSTATE) {
2271 			if (crb_entry->crb_strd.state_index_a) {
2272 				index = crb_entry->crb_strd.state_index_a;
2273 				addr = tmplt_hdr->saved_state_array[index];
2274 			} else {
2275 				addr = crb_addr;
2276 			}
2277 
2278 			if (crb_entry->crb_ctrl.state_index_v) {
2279 				index = crb_entry->crb_ctrl.state_index_v;
2280 				read_value =
2281 					tmplt_hdr->saved_state_array[index];
2282 			} else {
2283 				read_value = crb_entry->value_1;
2284 			}
2285 
2286 			ha->isp_ops->wr_reg_indirect(ha, addr, read_value);
2287 			opcode &= ~QLA8XXX_DBG_OPCODE_WRSTATE;
2288 		}
2289 
2290 		if (opcode & QLA8XXX_DBG_OPCODE_MDSTATE) {
2291 			index = crb_entry->crb_ctrl.state_index_v;
2292 			read_value = tmplt_hdr->saved_state_array[index];
2293 			read_value <<= crb_entry->crb_ctrl.shl;
2294 			read_value >>= crb_entry->crb_ctrl.shr;
2295 			if (crb_entry->value_2)
2296 				read_value &= crb_entry->value_2;
2297 			read_value |= crb_entry->value_3;
2298 			read_value += crb_entry->value_1;
2299 			tmplt_hdr->saved_state_array[index] = read_value;
2300 			opcode &= ~QLA8XXX_DBG_OPCODE_MDSTATE;
2301 		}
2302 		crb_addr += crb_entry->crb_strd.addr_stride;
2303 	}
2304 	DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s\n", __func__));
2305 	return rval;
2306 }
2307 
qla4_8xxx_minidump_process_rdocm(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2308 static void qla4_8xxx_minidump_process_rdocm(struct scsi_qla_host *ha,
2309 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2310 				uint32_t **d_ptr)
2311 {
2312 	uint32_t r_addr, r_stride, loop_cnt, i, r_value;
2313 	struct qla8xxx_minidump_entry_rdocm *ocm_hdr;
2314 	uint32_t *data_ptr = *d_ptr;
2315 
2316 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2317 	ocm_hdr = (struct qla8xxx_minidump_entry_rdocm *)entry_hdr;
2318 	r_addr = ocm_hdr->read_addr;
2319 	r_stride = ocm_hdr->read_addr_stride;
2320 	loop_cnt = ocm_hdr->op_count;
2321 
2322 	DEBUG2(ql4_printk(KERN_INFO, ha,
2323 			  "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
2324 			  __func__, r_addr, r_stride, loop_cnt));
2325 
2326 	for (i = 0; i < loop_cnt; i++) {
2327 		r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
2328 		*data_ptr++ = cpu_to_le32(r_value);
2329 		r_addr += r_stride;
2330 	}
2331 	DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%lx\n",
2332 		__func__, (long unsigned int) (loop_cnt * sizeof(uint32_t))));
2333 	*d_ptr = data_ptr;
2334 }
2335 
qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2336 static void qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host *ha,
2337 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2338 				uint32_t **d_ptr)
2339 {
2340 	uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
2341 	struct qla8xxx_minidump_entry_mux *mux_hdr;
2342 	uint32_t *data_ptr = *d_ptr;
2343 
2344 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2345 	mux_hdr = (struct qla8xxx_minidump_entry_mux *)entry_hdr;
2346 	r_addr = mux_hdr->read_addr;
2347 	s_addr = mux_hdr->select_addr;
2348 	s_stride = mux_hdr->select_value_stride;
2349 	s_value = mux_hdr->select_value;
2350 	loop_cnt = mux_hdr->op_count;
2351 
2352 	for (i = 0; i < loop_cnt; i++) {
2353 		ha->isp_ops->wr_reg_indirect(ha, s_addr, s_value);
2354 		ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2355 		*data_ptr++ = cpu_to_le32(s_value);
2356 		*data_ptr++ = cpu_to_le32(r_value);
2357 		s_value += s_stride;
2358 	}
2359 	*d_ptr = data_ptr;
2360 }
2361 
qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2362 static void qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host *ha,
2363 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2364 				uint32_t **d_ptr)
2365 {
2366 	uint32_t addr, r_addr, c_addr, t_r_addr;
2367 	uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2368 	uint32_t c_value_w;
2369 	struct qla8xxx_minidump_entry_cache *cache_hdr;
2370 	uint32_t *data_ptr = *d_ptr;
2371 
2372 	cache_hdr = (struct qla8xxx_minidump_entry_cache *)entry_hdr;
2373 	loop_count = cache_hdr->op_count;
2374 	r_addr = cache_hdr->read_addr;
2375 	c_addr = cache_hdr->control_addr;
2376 	c_value_w = cache_hdr->cache_ctrl.write_value;
2377 
2378 	t_r_addr = cache_hdr->tag_reg_addr;
2379 	t_value = cache_hdr->addr_ctrl.init_tag_value;
2380 	r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2381 
2382 	for (i = 0; i < loop_count; i++) {
2383 		ha->isp_ops->wr_reg_indirect(ha, t_r_addr, t_value);
2384 		ha->isp_ops->wr_reg_indirect(ha, c_addr, c_value_w);
2385 		addr = r_addr;
2386 		for (k = 0; k < r_cnt; k++) {
2387 			ha->isp_ops->rd_reg_indirect(ha, addr, &r_value);
2388 			*data_ptr++ = cpu_to_le32(r_value);
2389 			addr += cache_hdr->read_ctrl.read_addr_stride;
2390 		}
2391 		t_value += cache_hdr->addr_ctrl.tag_value_stride;
2392 	}
2393 	*d_ptr = data_ptr;
2394 }
2395 
qla4_8xxx_minidump_process_queue(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2396 static void qla4_8xxx_minidump_process_queue(struct scsi_qla_host *ha,
2397 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2398 				uint32_t **d_ptr)
2399 {
2400 	uint32_t s_addr, r_addr;
2401 	uint32_t r_stride, r_value, r_cnt, qid = 0;
2402 	uint32_t i, k, loop_cnt;
2403 	struct qla8xxx_minidump_entry_queue *q_hdr;
2404 	uint32_t *data_ptr = *d_ptr;
2405 
2406 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2407 	q_hdr = (struct qla8xxx_minidump_entry_queue *)entry_hdr;
2408 	s_addr = q_hdr->select_addr;
2409 	r_cnt = q_hdr->rd_strd.read_addr_cnt;
2410 	r_stride = q_hdr->rd_strd.read_addr_stride;
2411 	loop_cnt = q_hdr->op_count;
2412 
2413 	for (i = 0; i < loop_cnt; i++) {
2414 		ha->isp_ops->wr_reg_indirect(ha, s_addr, qid);
2415 		r_addr = q_hdr->read_addr;
2416 		for (k = 0; k < r_cnt; k++) {
2417 			ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2418 			*data_ptr++ = cpu_to_le32(r_value);
2419 			r_addr += r_stride;
2420 		}
2421 		qid += q_hdr->q_strd.queue_id_stride;
2422 	}
2423 	*d_ptr = data_ptr;
2424 }
2425 
2426 #define MD_DIRECT_ROM_WINDOW		0x42110030
2427 #define MD_DIRECT_ROM_READ_BASE		0x42150000
2428 
qla4_82xx_minidump_process_rdrom(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2429 static void qla4_82xx_minidump_process_rdrom(struct scsi_qla_host *ha,
2430 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2431 				uint32_t **d_ptr)
2432 {
2433 	uint32_t r_addr, r_value;
2434 	uint32_t i, loop_cnt;
2435 	struct qla8xxx_minidump_entry_rdrom *rom_hdr;
2436 	uint32_t *data_ptr = *d_ptr;
2437 
2438 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2439 	rom_hdr = (struct qla8xxx_minidump_entry_rdrom *)entry_hdr;
2440 	r_addr = rom_hdr->read_addr;
2441 	loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
2442 
2443 	DEBUG2(ql4_printk(KERN_INFO, ha,
2444 			  "[%s]: flash_addr: 0x%x, read_data_size: 0x%x\n",
2445 			   __func__, r_addr, loop_cnt));
2446 
2447 	for (i = 0; i < loop_cnt; i++) {
2448 		ha->isp_ops->wr_reg_indirect(ha, MD_DIRECT_ROM_WINDOW,
2449 					     (r_addr & 0xFFFF0000));
2450 		ha->isp_ops->rd_reg_indirect(ha,
2451 				MD_DIRECT_ROM_READ_BASE + (r_addr & 0x0000FFFF),
2452 				&r_value);
2453 		*data_ptr++ = cpu_to_le32(r_value);
2454 		r_addr += sizeof(uint32_t);
2455 	}
2456 	*d_ptr = data_ptr;
2457 }
2458 
2459 #define MD_MIU_TEST_AGT_CTRL		0x41000090
2460 #define MD_MIU_TEST_AGT_ADDR_LO		0x41000094
2461 #define MD_MIU_TEST_AGT_ADDR_HI		0x41000098
2462 
__qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2463 static int __qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
2464 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2465 				uint32_t **d_ptr)
2466 {
2467 	uint32_t r_addr, r_value, r_data;
2468 	uint32_t i, j, loop_cnt;
2469 	struct qla8xxx_minidump_entry_rdmem *m_hdr;
2470 	unsigned long flags;
2471 	uint32_t *data_ptr = *d_ptr;
2472 
2473 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2474 	m_hdr = (struct qla8xxx_minidump_entry_rdmem *)entry_hdr;
2475 	r_addr = m_hdr->read_addr;
2476 	loop_cnt = m_hdr->read_data_size/16;
2477 
2478 	DEBUG2(ql4_printk(KERN_INFO, ha,
2479 			  "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
2480 			  __func__, r_addr, m_hdr->read_data_size));
2481 
2482 	if (r_addr & 0xf) {
2483 		DEBUG2(ql4_printk(KERN_INFO, ha,
2484 				  "[%s]: Read addr 0x%x not 16 bytes aligned\n",
2485 				  __func__, r_addr));
2486 		return QLA_ERROR;
2487 	}
2488 
2489 	if (m_hdr->read_data_size % 16) {
2490 		DEBUG2(ql4_printk(KERN_INFO, ha,
2491 				  "[%s]: Read data[0x%x] not multiple of 16 bytes\n",
2492 				  __func__, m_hdr->read_data_size));
2493 		return QLA_ERROR;
2494 	}
2495 
2496 	DEBUG2(ql4_printk(KERN_INFO, ha,
2497 			  "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
2498 			  __func__, r_addr, m_hdr->read_data_size, loop_cnt));
2499 
2500 	write_lock_irqsave(&ha->hw_lock, flags);
2501 	for (i = 0; i < loop_cnt; i++) {
2502 		ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_LO,
2503 					     r_addr);
2504 		r_value = 0;
2505 		ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_HI,
2506 					     r_value);
2507 		r_value = MIU_TA_CTL_ENABLE;
2508 		ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL, r_value);
2509 		r_value = MIU_TA_CTL_START_ENABLE;
2510 		ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL, r_value);
2511 
2512 		for (j = 0; j < MAX_CTL_CHECK; j++) {
2513 			ha->isp_ops->rd_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL,
2514 						     &r_value);
2515 			if ((r_value & MIU_TA_CTL_BUSY) == 0)
2516 				break;
2517 		}
2518 
2519 		if (j >= MAX_CTL_CHECK) {
2520 			printk_ratelimited(KERN_ERR
2521 					   "%s: failed to read through agent\n",
2522 					    __func__);
2523 			write_unlock_irqrestore(&ha->hw_lock, flags);
2524 			return QLA_SUCCESS;
2525 		}
2526 
2527 		for (j = 0; j < 4; j++) {
2528 			ha->isp_ops->rd_reg_indirect(ha,
2529 						     MD_MIU_TEST_AGT_RDDATA[j],
2530 						     &r_data);
2531 			*data_ptr++ = cpu_to_le32(r_data);
2532 		}
2533 
2534 		r_addr += 16;
2535 	}
2536 	write_unlock_irqrestore(&ha->hw_lock, flags);
2537 
2538 	DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%x\n",
2539 			  __func__, (loop_cnt * 16)));
2540 
2541 	*d_ptr = data_ptr;
2542 	return QLA_SUCCESS;
2543 }
2544 
qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2545 static int qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
2546 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2547 				uint32_t **d_ptr)
2548 {
2549 	uint32_t *data_ptr = *d_ptr;
2550 	int rval = QLA_SUCCESS;
2551 
2552 	rval = qla4_8xxx_minidump_pex_dma_read(ha, entry_hdr, &data_ptr);
2553 	if (rval != QLA_SUCCESS)
2554 		rval = __qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
2555 							  &data_ptr);
2556 	*d_ptr = data_ptr;
2557 	return rval;
2558 }
2559 
qla4_8xxx_mark_entry_skipped(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,int index)2560 static void qla4_8xxx_mark_entry_skipped(struct scsi_qla_host *ha,
2561 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2562 				int index)
2563 {
2564 	entry_hdr->d_ctrl.driver_flags |= QLA8XXX_DBG_SKIPPED_FLAG;
2565 	DEBUG2(ql4_printk(KERN_INFO, ha,
2566 			  "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
2567 			  ha->host_no, index, entry_hdr->entry_type,
2568 			  entry_hdr->d_ctrl.entry_capture_mask));
2569 	/* If driver encounters a new entry type that it cannot process,
2570 	 * it should just skip the entry and adjust the total buffer size by
2571 	 * from subtracting the skipped bytes from it
2572 	 */
2573 	ha->fw_dump_skip_size += entry_hdr->entry_capture_size;
2574 }
2575 
2576 /* ISP83xx functions to process new minidump entries... */
qla83xx_minidump_process_pollrd(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2577 static uint32_t qla83xx_minidump_process_pollrd(struct scsi_qla_host *ha,
2578 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2579 				uint32_t **d_ptr)
2580 {
2581 	uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask;
2582 	uint16_t s_stride, i;
2583 	uint32_t *data_ptr = *d_ptr;
2584 	uint32_t rval = QLA_SUCCESS;
2585 	struct qla83xx_minidump_entry_pollrd *pollrd_hdr;
2586 
2587 	pollrd_hdr = (struct qla83xx_minidump_entry_pollrd *)entry_hdr;
2588 	s_addr = le32_to_cpu(pollrd_hdr->select_addr);
2589 	r_addr = le32_to_cpu(pollrd_hdr->read_addr);
2590 	s_value = le32_to_cpu(pollrd_hdr->select_value);
2591 	s_stride = le32_to_cpu(pollrd_hdr->select_value_stride);
2592 
2593 	poll_wait = le32_to_cpu(pollrd_hdr->poll_wait);
2594 	poll_mask = le32_to_cpu(pollrd_hdr->poll_mask);
2595 
2596 	for (i = 0; i < le32_to_cpu(pollrd_hdr->op_count); i++) {
2597 		ha->isp_ops->wr_reg_indirect(ha, s_addr, s_value);
2598 		poll_wait = le32_to_cpu(pollrd_hdr->poll_wait);
2599 		while (1) {
2600 			ha->isp_ops->rd_reg_indirect(ha, s_addr, &r_value);
2601 
2602 			if ((r_value & poll_mask) != 0) {
2603 				break;
2604 			} else {
2605 				msleep(1);
2606 				if (--poll_wait == 0) {
2607 					ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2608 						   __func__);
2609 					rval = QLA_ERROR;
2610 					goto exit_process_pollrd;
2611 				}
2612 			}
2613 		}
2614 		ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2615 		*data_ptr++ = cpu_to_le32(s_value);
2616 		*data_ptr++ = cpu_to_le32(r_value);
2617 		s_value += s_stride;
2618 	}
2619 
2620 	*d_ptr = data_ptr;
2621 
2622 exit_process_pollrd:
2623 	return rval;
2624 }
2625 
qla4_84xx_minidump_process_rddfe(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2626 static uint32_t qla4_84xx_minidump_process_rddfe(struct scsi_qla_host *ha,
2627 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2628 				uint32_t **d_ptr)
2629 {
2630 	int loop_cnt;
2631 	uint32_t addr1, addr2, value, data, temp, wrval;
2632 	uint8_t stride, stride2;
2633 	uint16_t count;
2634 	uint32_t poll, mask, modify_mask;
2635 	uint32_t wait_count = 0;
2636 	uint32_t *data_ptr = *d_ptr;
2637 	struct qla8044_minidump_entry_rddfe *rddfe;
2638 	uint32_t rval = QLA_SUCCESS;
2639 
2640 	rddfe = (struct qla8044_minidump_entry_rddfe *)entry_hdr;
2641 	addr1 = le32_to_cpu(rddfe->addr_1);
2642 	value = le32_to_cpu(rddfe->value);
2643 	stride = le32_to_cpu(rddfe->stride);
2644 	stride2 = le32_to_cpu(rddfe->stride2);
2645 	count = le32_to_cpu(rddfe->count);
2646 
2647 	poll = le32_to_cpu(rddfe->poll);
2648 	mask = le32_to_cpu(rddfe->mask);
2649 	modify_mask = le32_to_cpu(rddfe->modify_mask);
2650 
2651 	addr2 = addr1 + stride;
2652 
2653 	for (loop_cnt = 0x0; loop_cnt < count; loop_cnt++) {
2654 		ha->isp_ops->wr_reg_indirect(ha, addr1, (0x40000000 | value));
2655 
2656 		wait_count = 0;
2657 		while (wait_count < poll) {
2658 			ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2659 			if ((temp & mask) != 0)
2660 				break;
2661 			wait_count++;
2662 		}
2663 
2664 		if (wait_count == poll) {
2665 			ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n", __func__);
2666 			rval = QLA_ERROR;
2667 			goto exit_process_rddfe;
2668 		} else {
2669 			ha->isp_ops->rd_reg_indirect(ha, addr2, &temp);
2670 			temp = temp & modify_mask;
2671 			temp = (temp | ((loop_cnt << 16) | loop_cnt));
2672 			wrval = ((temp << 16) | temp);
2673 
2674 			ha->isp_ops->wr_reg_indirect(ha, addr2, wrval);
2675 			ha->isp_ops->wr_reg_indirect(ha, addr1, value);
2676 
2677 			wait_count = 0;
2678 			while (wait_count < poll) {
2679 				ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2680 				if ((temp & mask) != 0)
2681 					break;
2682 				wait_count++;
2683 			}
2684 			if (wait_count == poll) {
2685 				ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2686 					   __func__);
2687 				rval = QLA_ERROR;
2688 				goto exit_process_rddfe;
2689 			}
2690 
2691 			ha->isp_ops->wr_reg_indirect(ha, addr1,
2692 						     ((0x40000000 | value) +
2693 						     stride2));
2694 			wait_count = 0;
2695 			while (wait_count < poll) {
2696 				ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2697 				if ((temp & mask) != 0)
2698 					break;
2699 				wait_count++;
2700 			}
2701 
2702 			if (wait_count == poll) {
2703 				ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2704 					   __func__);
2705 				rval = QLA_ERROR;
2706 				goto exit_process_rddfe;
2707 			}
2708 
2709 			ha->isp_ops->rd_reg_indirect(ha, addr2, &data);
2710 
2711 			*data_ptr++ = cpu_to_le32(wrval);
2712 			*data_ptr++ = cpu_to_le32(data);
2713 		}
2714 	}
2715 
2716 	*d_ptr = data_ptr;
2717 exit_process_rddfe:
2718 	return rval;
2719 }
2720 
qla4_84xx_minidump_process_rdmdio(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2721 static uint32_t qla4_84xx_minidump_process_rdmdio(struct scsi_qla_host *ha,
2722 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2723 				uint32_t **d_ptr)
2724 {
2725 	int rval = QLA_SUCCESS;
2726 	uint32_t addr1, addr2, value1, value2, data, selval;
2727 	uint8_t stride1, stride2;
2728 	uint32_t addr3, addr4, addr5, addr6, addr7;
2729 	uint16_t count, loop_cnt;
2730 	uint32_t mask;
2731 	uint32_t *data_ptr = *d_ptr;
2732 	struct qla8044_minidump_entry_rdmdio *rdmdio;
2733 
2734 	rdmdio = (struct qla8044_minidump_entry_rdmdio *)entry_hdr;
2735 	addr1 = le32_to_cpu(rdmdio->addr_1);
2736 	addr2 = le32_to_cpu(rdmdio->addr_2);
2737 	value1 = le32_to_cpu(rdmdio->value_1);
2738 	stride1 = le32_to_cpu(rdmdio->stride_1);
2739 	stride2 = le32_to_cpu(rdmdio->stride_2);
2740 	count = le32_to_cpu(rdmdio->count);
2741 
2742 	mask = le32_to_cpu(rdmdio->mask);
2743 	value2 = le32_to_cpu(rdmdio->value_2);
2744 
2745 	addr3 = addr1 + stride1;
2746 
2747 	for (loop_cnt = 0; loop_cnt < count; loop_cnt++) {
2748 		rval = ql4_84xx_poll_wait_ipmdio_bus_idle(ha, addr1, addr2,
2749 							 addr3, mask);
2750 		if (rval)
2751 			goto exit_process_rdmdio;
2752 
2753 		addr4 = addr2 - stride1;
2754 		rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask, addr4,
2755 					     value2);
2756 		if (rval)
2757 			goto exit_process_rdmdio;
2758 
2759 		addr5 = addr2 - (2 * stride1);
2760 		rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask, addr5,
2761 					     value1);
2762 		if (rval)
2763 			goto exit_process_rdmdio;
2764 
2765 		addr6 = addr2 - (3 * stride1);
2766 		rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask,
2767 					     addr6, 0x2);
2768 		if (rval)
2769 			goto exit_process_rdmdio;
2770 
2771 		rval = ql4_84xx_poll_wait_ipmdio_bus_idle(ha, addr1, addr2,
2772 							 addr3, mask);
2773 		if (rval)
2774 			goto exit_process_rdmdio;
2775 
2776 		addr7 = addr2 - (4 * stride1);
2777 		rval = ql4_84xx_ipmdio_rd_reg(ha, addr1, addr3,
2778 						      mask, addr7, &data);
2779 		if (rval)
2780 			goto exit_process_rdmdio;
2781 
2782 		selval = (value2 << 18) | (value1 << 2) | 2;
2783 
2784 		stride2 = le32_to_cpu(rdmdio->stride_2);
2785 		*data_ptr++ = cpu_to_le32(selval);
2786 		*data_ptr++ = cpu_to_le32(data);
2787 
2788 		value1 = value1 + stride2;
2789 		*d_ptr = data_ptr;
2790 	}
2791 
2792 exit_process_rdmdio:
2793 	return rval;
2794 }
2795 
qla4_84xx_minidump_process_pollwr(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2796 static uint32_t qla4_84xx_minidump_process_pollwr(struct scsi_qla_host *ha,
2797 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2798 				uint32_t **d_ptr)
2799 {
2800 	uint32_t addr1, addr2, value1, value2, poll, r_value;
2801 	struct qla8044_minidump_entry_pollwr *pollwr_hdr;
2802 	uint32_t wait_count = 0;
2803 	uint32_t rval = QLA_SUCCESS;
2804 
2805 	pollwr_hdr = (struct qla8044_minidump_entry_pollwr *)entry_hdr;
2806 	addr1 = le32_to_cpu(pollwr_hdr->addr_1);
2807 	addr2 = le32_to_cpu(pollwr_hdr->addr_2);
2808 	value1 = le32_to_cpu(pollwr_hdr->value_1);
2809 	value2 = le32_to_cpu(pollwr_hdr->value_2);
2810 
2811 	poll = le32_to_cpu(pollwr_hdr->poll);
2812 
2813 	while (wait_count < poll) {
2814 		ha->isp_ops->rd_reg_indirect(ha, addr1, &r_value);
2815 
2816 		if ((r_value & poll) != 0)
2817 			break;
2818 
2819 		wait_count++;
2820 	}
2821 
2822 	if (wait_count == poll) {
2823 		ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n", __func__);
2824 		rval = QLA_ERROR;
2825 		goto exit_process_pollwr;
2826 	}
2827 
2828 	ha->isp_ops->wr_reg_indirect(ha, addr2, value2);
2829 	ha->isp_ops->wr_reg_indirect(ha, addr1, value1);
2830 
2831 	wait_count = 0;
2832 	while (wait_count < poll) {
2833 		ha->isp_ops->rd_reg_indirect(ha, addr1, &r_value);
2834 
2835 		if ((r_value & poll) != 0)
2836 			break;
2837 		wait_count++;
2838 	}
2839 
2840 exit_process_pollwr:
2841 	return rval;
2842 }
2843 
qla83xx_minidump_process_rdmux2(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2844 static void qla83xx_minidump_process_rdmux2(struct scsi_qla_host *ha,
2845 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2846 				uint32_t **d_ptr)
2847 {
2848 	uint32_t sel_val1, sel_val2, t_sel_val, data, i;
2849 	uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr;
2850 	struct qla83xx_minidump_entry_rdmux2 *rdmux2_hdr;
2851 	uint32_t *data_ptr = *d_ptr;
2852 
2853 	rdmux2_hdr = (struct qla83xx_minidump_entry_rdmux2 *)entry_hdr;
2854 	sel_val1 = le32_to_cpu(rdmux2_hdr->select_value_1);
2855 	sel_val2 = le32_to_cpu(rdmux2_hdr->select_value_2);
2856 	sel_addr1 = le32_to_cpu(rdmux2_hdr->select_addr_1);
2857 	sel_addr2 = le32_to_cpu(rdmux2_hdr->select_addr_2);
2858 	sel_val_mask = le32_to_cpu(rdmux2_hdr->select_value_mask);
2859 	read_addr = le32_to_cpu(rdmux2_hdr->read_addr);
2860 
2861 	for (i = 0; i < rdmux2_hdr->op_count; i++) {
2862 		ha->isp_ops->wr_reg_indirect(ha, sel_addr1, sel_val1);
2863 		t_sel_val = sel_val1 & sel_val_mask;
2864 		*data_ptr++ = cpu_to_le32(t_sel_val);
2865 
2866 		ha->isp_ops->wr_reg_indirect(ha, sel_addr2, t_sel_val);
2867 		ha->isp_ops->rd_reg_indirect(ha, read_addr, &data);
2868 
2869 		*data_ptr++ = cpu_to_le32(data);
2870 
2871 		ha->isp_ops->wr_reg_indirect(ha, sel_addr1, sel_val2);
2872 		t_sel_val = sel_val2 & sel_val_mask;
2873 		*data_ptr++ = cpu_to_le32(t_sel_val);
2874 
2875 		ha->isp_ops->wr_reg_indirect(ha, sel_addr2, t_sel_val);
2876 		ha->isp_ops->rd_reg_indirect(ha, read_addr, &data);
2877 
2878 		*data_ptr++ = cpu_to_le32(data);
2879 
2880 		sel_val1 += rdmux2_hdr->select_value_stride;
2881 		sel_val2 += rdmux2_hdr->select_value_stride;
2882 	}
2883 
2884 	*d_ptr = data_ptr;
2885 }
2886 
qla83xx_minidump_process_pollrdmwr(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2887 static uint32_t qla83xx_minidump_process_pollrdmwr(struct scsi_qla_host *ha,
2888 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2889 				uint32_t **d_ptr)
2890 {
2891 	uint32_t poll_wait, poll_mask, r_value, data;
2892 	uint32_t addr_1, addr_2, value_1, value_2;
2893 	uint32_t *data_ptr = *d_ptr;
2894 	uint32_t rval = QLA_SUCCESS;
2895 	struct qla83xx_minidump_entry_pollrdmwr *poll_hdr;
2896 
2897 	poll_hdr = (struct qla83xx_minidump_entry_pollrdmwr *)entry_hdr;
2898 	addr_1 = le32_to_cpu(poll_hdr->addr_1);
2899 	addr_2 = le32_to_cpu(poll_hdr->addr_2);
2900 	value_1 = le32_to_cpu(poll_hdr->value_1);
2901 	value_2 = le32_to_cpu(poll_hdr->value_2);
2902 	poll_mask = le32_to_cpu(poll_hdr->poll_mask);
2903 
2904 	ha->isp_ops->wr_reg_indirect(ha, addr_1, value_1);
2905 
2906 	poll_wait = le32_to_cpu(poll_hdr->poll_wait);
2907 	while (1) {
2908 		ha->isp_ops->rd_reg_indirect(ha, addr_1, &r_value);
2909 
2910 		if ((r_value & poll_mask) != 0) {
2911 			break;
2912 		} else {
2913 			msleep(1);
2914 			if (--poll_wait == 0) {
2915 				ql4_printk(KERN_ERR, ha, "%s: TIMEOUT_1\n",
2916 					   __func__);
2917 				rval = QLA_ERROR;
2918 				goto exit_process_pollrdmwr;
2919 			}
2920 		}
2921 	}
2922 
2923 	ha->isp_ops->rd_reg_indirect(ha, addr_2, &data);
2924 	data &= le32_to_cpu(poll_hdr->modify_mask);
2925 	ha->isp_ops->wr_reg_indirect(ha, addr_2, data);
2926 	ha->isp_ops->wr_reg_indirect(ha, addr_1, value_2);
2927 
2928 	poll_wait = le32_to_cpu(poll_hdr->poll_wait);
2929 	while (1) {
2930 		ha->isp_ops->rd_reg_indirect(ha, addr_1, &r_value);
2931 
2932 		if ((r_value & poll_mask) != 0) {
2933 			break;
2934 		} else {
2935 			msleep(1);
2936 			if (--poll_wait == 0) {
2937 				ql4_printk(KERN_ERR, ha, "%s: TIMEOUT_2\n",
2938 					   __func__);
2939 				rval = QLA_ERROR;
2940 				goto exit_process_pollrdmwr;
2941 			}
2942 		}
2943 	}
2944 
2945 	*data_ptr++ = cpu_to_le32(addr_2);
2946 	*data_ptr++ = cpu_to_le32(data);
2947 	*d_ptr = data_ptr;
2948 
2949 exit_process_pollrdmwr:
2950 	return rval;
2951 }
2952 
qla4_83xx_minidump_process_rdrom(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2953 static uint32_t qla4_83xx_minidump_process_rdrom(struct scsi_qla_host *ha,
2954 				struct qla8xxx_minidump_entry_hdr *entry_hdr,
2955 				uint32_t **d_ptr)
2956 {
2957 	uint32_t fl_addr, u32_count, rval;
2958 	struct qla8xxx_minidump_entry_rdrom *rom_hdr;
2959 	uint32_t *data_ptr = *d_ptr;
2960 
2961 	rom_hdr = (struct qla8xxx_minidump_entry_rdrom *)entry_hdr;
2962 	fl_addr = le32_to_cpu(rom_hdr->read_addr);
2963 	u32_count = le32_to_cpu(rom_hdr->read_data_size)/sizeof(uint32_t);
2964 
2965 	DEBUG2(ql4_printk(KERN_INFO, ha, "[%s]: fl_addr: 0x%x, count: 0x%x\n",
2966 			  __func__, fl_addr, u32_count));
2967 
2968 	rval = qla4_83xx_lockless_flash_read_u32(ha, fl_addr,
2969 						 (u8 *)(data_ptr), u32_count);
2970 
2971 	if (rval == QLA_ERROR) {
2972 		ql4_printk(KERN_ERR, ha, "%s: Flash Read Error,Count=%d\n",
2973 			   __func__, u32_count);
2974 		goto exit_process_rdrom;
2975 	}
2976 
2977 	data_ptr += u32_count;
2978 	*d_ptr = data_ptr;
2979 
2980 exit_process_rdrom:
2981 	return rval;
2982 }
2983 
2984 /**
2985  * qla4_8xxx_collect_md_data - Retrieve firmware minidump data.
2986  * @ha: pointer to adapter structure
2987  **/
qla4_8xxx_collect_md_data(struct scsi_qla_host * ha)2988 static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
2989 {
2990 	int num_entry_hdr = 0;
2991 	struct qla8xxx_minidump_entry_hdr *entry_hdr;
2992 	struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
2993 	uint32_t *data_ptr;
2994 	uint32_t data_collected = 0;
2995 	int i, rval = QLA_ERROR;
2996 	uint64_t now;
2997 	uint32_t timestamp;
2998 
2999 	ha->fw_dump_skip_size = 0;
3000 	if (!ha->fw_dump) {
3001 		ql4_printk(KERN_INFO, ha, "%s(%ld) No buffer to dump\n",
3002 			   __func__, ha->host_no);
3003 		return rval;
3004 	}
3005 
3006 	tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
3007 						ha->fw_dump_tmplt_hdr;
3008 	data_ptr = (uint32_t *)((uint8_t *)ha->fw_dump +
3009 						ha->fw_dump_tmplt_size);
3010 	data_collected += ha->fw_dump_tmplt_size;
3011 
3012 	num_entry_hdr = tmplt_hdr->num_of_entries;
3013 	ql4_printk(KERN_INFO, ha, "[%s]: starting data ptr: %p\n",
3014 		   __func__, data_ptr);
3015 	ql4_printk(KERN_INFO, ha,
3016 		   "[%s]: no of entry headers in Template: 0x%x\n",
3017 		   __func__, num_entry_hdr);
3018 	ql4_printk(KERN_INFO, ha, "[%s]: Capture Mask obtained: 0x%x\n",
3019 		   __func__, ha->fw_dump_capture_mask);
3020 	ql4_printk(KERN_INFO, ha, "[%s]: Total_data_size 0x%x, %d obtained\n",
3021 		   __func__, ha->fw_dump_size, ha->fw_dump_size);
3022 
3023 	/* Update current timestamp before taking dump */
3024 	now = get_jiffies_64();
3025 	timestamp = (u32)(jiffies_to_msecs(now) / 1000);
3026 	tmplt_hdr->driver_timestamp = timestamp;
3027 
3028 	entry_hdr = (struct qla8xxx_minidump_entry_hdr *)
3029 					(((uint8_t *)ha->fw_dump_tmplt_hdr) +
3030 					 tmplt_hdr->first_entry_offset);
3031 
3032 	if (is_qla8032(ha) || is_qla8042(ha))
3033 		tmplt_hdr->saved_state_array[QLA83XX_SS_OCM_WNDREG_INDEX] =
3034 					tmplt_hdr->ocm_window_reg[ha->func_num];
3035 
3036 	/* Walk through the entry headers - validate/perform required action */
3037 	for (i = 0; i < num_entry_hdr; i++) {
3038 		if (data_collected > ha->fw_dump_size) {
3039 			ql4_printk(KERN_INFO, ha,
3040 				   "Data collected: [0x%x], Total Dump size: [0x%x]\n",
3041 				   data_collected, ha->fw_dump_size);
3042 			return rval;
3043 		}
3044 
3045 		if (!(entry_hdr->d_ctrl.entry_capture_mask &
3046 		      ha->fw_dump_capture_mask)) {
3047 			entry_hdr->d_ctrl.driver_flags |=
3048 						QLA8XXX_DBG_SKIPPED_FLAG;
3049 			goto skip_nxt_entry;
3050 		}
3051 
3052 		DEBUG2(ql4_printk(KERN_INFO, ha,
3053 				  "Data collected: [0x%x], Dump size left:[0x%x]\n",
3054 				  data_collected,
3055 				  (ha->fw_dump_size - data_collected)));
3056 
3057 		/* Decode the entry type and take required action to capture
3058 		 * debug data
3059 		 */
3060 		switch (entry_hdr->entry_type) {
3061 		case QLA8XXX_RDEND:
3062 			qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3063 			break;
3064 		case QLA8XXX_CNTRL:
3065 			rval = qla4_8xxx_minidump_process_control(ha,
3066 								  entry_hdr);
3067 			if (rval != QLA_SUCCESS) {
3068 				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3069 				goto md_failed;
3070 			}
3071 			break;
3072 		case QLA8XXX_RDCRB:
3073 			qla4_8xxx_minidump_process_rdcrb(ha, entry_hdr,
3074 							 &data_ptr);
3075 			break;
3076 		case QLA8XXX_RDMEM:
3077 			rval = qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
3078 								&data_ptr);
3079 			if (rval != QLA_SUCCESS) {
3080 				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3081 				goto md_failed;
3082 			}
3083 			break;
3084 		case QLA8XXX_BOARD:
3085 		case QLA8XXX_RDROM:
3086 			if (is_qla8022(ha)) {
3087 				qla4_82xx_minidump_process_rdrom(ha, entry_hdr,
3088 								 &data_ptr);
3089 			} else if (is_qla8032(ha) || is_qla8042(ha)) {
3090 				rval = qla4_83xx_minidump_process_rdrom(ha,
3091 								    entry_hdr,
3092 								    &data_ptr);
3093 				if (rval != QLA_SUCCESS)
3094 					qla4_8xxx_mark_entry_skipped(ha,
3095 								     entry_hdr,
3096 								     i);
3097 			}
3098 			break;
3099 		case QLA8XXX_L2DTG:
3100 		case QLA8XXX_L2ITG:
3101 		case QLA8XXX_L2DAT:
3102 		case QLA8XXX_L2INS:
3103 			rval = qla4_8xxx_minidump_process_l2tag(ha, entry_hdr,
3104 								&data_ptr);
3105 			if (rval != QLA_SUCCESS) {
3106 				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3107 				goto md_failed;
3108 			}
3109 			break;
3110 		case QLA8XXX_L1DTG:
3111 		case QLA8XXX_L1ITG:
3112 		case QLA8XXX_L1DAT:
3113 		case QLA8XXX_L1INS:
3114 			qla4_8xxx_minidump_process_l1cache(ha, entry_hdr,
3115 							   &data_ptr);
3116 			break;
3117 		case QLA8XXX_RDOCM:
3118 			qla4_8xxx_minidump_process_rdocm(ha, entry_hdr,
3119 							 &data_ptr);
3120 			break;
3121 		case QLA8XXX_RDMUX:
3122 			qla4_8xxx_minidump_process_rdmux(ha, entry_hdr,
3123 							 &data_ptr);
3124 			break;
3125 		case QLA8XXX_QUEUE:
3126 			qla4_8xxx_minidump_process_queue(ha, entry_hdr,
3127 							 &data_ptr);
3128 			break;
3129 		case QLA83XX_POLLRD:
3130 			if (is_qla8022(ha)) {
3131 				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3132 				break;
3133 			}
3134 			rval = qla83xx_minidump_process_pollrd(ha, entry_hdr,
3135 							       &data_ptr);
3136 			if (rval != QLA_SUCCESS)
3137 				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3138 			break;
3139 		case QLA83XX_RDMUX2:
3140 			if (is_qla8022(ha)) {
3141 				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3142 				break;
3143 			}
3144 			qla83xx_minidump_process_rdmux2(ha, entry_hdr,
3145 							&data_ptr);
3146 			break;
3147 		case QLA83XX_POLLRDMWR:
3148 			if (is_qla8022(ha)) {
3149 				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3150 				break;
3151 			}
3152 			rval = qla83xx_minidump_process_pollrdmwr(ha, entry_hdr,
3153 								  &data_ptr);
3154 			if (rval != QLA_SUCCESS)
3155 				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3156 			break;
3157 		case QLA8044_RDDFE:
3158 			rval = qla4_84xx_minidump_process_rddfe(ha, entry_hdr,
3159 								&data_ptr);
3160 			if (rval != QLA_SUCCESS)
3161 				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3162 			break;
3163 		case QLA8044_RDMDIO:
3164 			rval = qla4_84xx_minidump_process_rdmdio(ha, entry_hdr,
3165 								 &data_ptr);
3166 			if (rval != QLA_SUCCESS)
3167 				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3168 			break;
3169 		case QLA8044_POLLWR:
3170 			rval = qla4_84xx_minidump_process_pollwr(ha, entry_hdr,
3171 								 &data_ptr);
3172 			if (rval != QLA_SUCCESS)
3173 				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3174 			break;
3175 		case QLA8XXX_RDNOP:
3176 		default:
3177 			qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3178 			break;
3179 		}
3180 
3181 		data_collected = (uint8_t *)data_ptr - (uint8_t *)ha->fw_dump;
3182 skip_nxt_entry:
3183 		/*  next entry in the template */
3184 		entry_hdr = (struct qla8xxx_minidump_entry_hdr *)
3185 				(((uint8_t *)entry_hdr) +
3186 				 entry_hdr->entry_size);
3187 	}
3188 
3189 	if ((data_collected + ha->fw_dump_skip_size) != ha->fw_dump_size) {
3190 		ql4_printk(KERN_INFO, ha,
3191 			   "Dump data mismatch: Data collected: [0x%x], total_data_size:[0x%x]\n",
3192 			   data_collected, ha->fw_dump_size);
3193 		rval = QLA_ERROR;
3194 		goto md_failed;
3195 	}
3196 
3197 	DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s Last entry: 0x%x\n",
3198 			  __func__, i));
3199 md_failed:
3200 	return rval;
3201 }
3202 
3203 /**
3204  * qla4_8xxx_uevent_emit - Send uevent when the firmware dump is ready.
3205  * @ha: pointer to adapter structure
3206  * @code: uevent code to act upon
3207  **/
qla4_8xxx_uevent_emit(struct scsi_qla_host * ha,u32 code)3208 static void qla4_8xxx_uevent_emit(struct scsi_qla_host *ha, u32 code)
3209 {
3210 	char event_string[40];
3211 	char *envp[] = { event_string, NULL };
3212 
3213 	switch (code) {
3214 	case QL4_UEVENT_CODE_FW_DUMP:
3215 		snprintf(event_string, sizeof(event_string), "FW_DUMP=%lu",
3216 			 ha->host_no);
3217 		break;
3218 	default:
3219 		/*do nothing*/
3220 		break;
3221 	}
3222 
3223 	kobject_uevent_env(&(&ha->pdev->dev)->kobj, KOBJ_CHANGE, envp);
3224 }
3225 
qla4_8xxx_get_minidump(struct scsi_qla_host * ha)3226 void qla4_8xxx_get_minidump(struct scsi_qla_host *ha)
3227 {
3228 	if (ql4xenablemd && test_bit(AF_FW_RECOVERY, &ha->flags) &&
3229 	    !test_bit(AF_82XX_FW_DUMPED, &ha->flags)) {
3230 		if (!qla4_8xxx_collect_md_data(ha)) {
3231 			qla4_8xxx_uevent_emit(ha, QL4_UEVENT_CODE_FW_DUMP);
3232 			set_bit(AF_82XX_FW_DUMPED, &ha->flags);
3233 		} else {
3234 			ql4_printk(KERN_INFO, ha, "%s: Unable to collect minidump\n",
3235 				   __func__);
3236 		}
3237 	}
3238 }
3239 
3240 /**
3241  * qla4_8xxx_device_bootstrap - Initialize device, set DEV_READY, start fw
3242  * @ha: pointer to adapter structure
3243  *
3244  * Note: IDC lock must be held upon entry
3245  **/
qla4_8xxx_device_bootstrap(struct scsi_qla_host * ha)3246 int qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
3247 {
3248 	int rval = QLA_ERROR;
3249 	int i;
3250 	uint32_t old_count, count;
3251 	int need_reset = 0;
3252 
3253 	need_reset = ha->isp_ops->need_reset(ha);
3254 
3255 	if (need_reset) {
3256 		/* We are trying to perform a recovery here. */
3257 		if (test_bit(AF_FW_RECOVERY, &ha->flags))
3258 			ha->isp_ops->rom_lock_recovery(ha);
3259 	} else  {
3260 		old_count = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
3261 		for (i = 0; i < 10; i++) {
3262 			msleep(200);
3263 			count = qla4_8xxx_rd_direct(ha,
3264 						    QLA8XXX_PEG_ALIVE_COUNTER);
3265 			if (count != old_count) {
3266 				rval = QLA_SUCCESS;
3267 				goto dev_ready;
3268 			}
3269 		}
3270 		ha->isp_ops->rom_lock_recovery(ha);
3271 	}
3272 
3273 	/* set to DEV_INITIALIZING */
3274 	ql4_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
3275 	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3276 			    QLA8XXX_DEV_INITIALIZING);
3277 
3278 	ha->isp_ops->idc_unlock(ha);
3279 
3280 	if (is_qla8022(ha))
3281 		qla4_8xxx_get_minidump(ha);
3282 
3283 	rval = ha->isp_ops->restart_firmware(ha);
3284 	ha->isp_ops->idc_lock(ha);
3285 
3286 	if (rval != QLA_SUCCESS) {
3287 		ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
3288 		qla4_8xxx_clear_drv_active(ha);
3289 		qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3290 				    QLA8XXX_DEV_FAILED);
3291 		return rval;
3292 	}
3293 
3294 dev_ready:
3295 	ql4_printk(KERN_INFO, ha, "HW State: READY\n");
3296 	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
3297 
3298 	return rval;
3299 }
3300 
3301 /**
3302  * qla4_82xx_need_reset_handler - Code to start reset sequence
3303  * @ha: pointer to adapter structure
3304  *
3305  * Note: IDC lock must be held upon entry
3306  **/
3307 static void
qla4_82xx_need_reset_handler(struct scsi_qla_host * ha)3308 qla4_82xx_need_reset_handler(struct scsi_qla_host *ha)
3309 {
3310 	uint32_t dev_state, drv_state, drv_active;
3311 	uint32_t active_mask = 0xFFFFFFFF;
3312 	unsigned long reset_timeout;
3313 
3314 	ql4_printk(KERN_INFO, ha,
3315 		"Performing ISP error recovery\n");
3316 
3317 	if (test_and_clear_bit(AF_ONLINE, &ha->flags)) {
3318 		qla4_82xx_idc_unlock(ha);
3319 		ha->isp_ops->disable_intrs(ha);
3320 		qla4_82xx_idc_lock(ha);
3321 	}
3322 
3323 	if (!test_bit(AF_8XXX_RST_OWNER, &ha->flags)) {
3324 		DEBUG2(ql4_printk(KERN_INFO, ha,
3325 				  "%s(%ld): reset acknowledged\n",
3326 				  __func__, ha->host_no));
3327 		qla4_8xxx_set_rst_ready(ha);
3328 	} else {
3329 		active_mask = (~(1 << (ha->func_num * 4)));
3330 	}
3331 
3332 	/* wait for 10 seconds for reset ack from all functions */
3333 	reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
3334 
3335 	drv_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3336 	drv_active = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3337 
3338 	ql4_printk(KERN_INFO, ha,
3339 		"%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
3340 		__func__, ha->host_no, drv_state, drv_active);
3341 
3342 	while (drv_state != (drv_active & active_mask)) {
3343 		if (time_after_eq(jiffies, reset_timeout)) {
3344 			ql4_printk(KERN_INFO, ha,
3345 				   "%s: RESET TIMEOUT! drv_state: 0x%08x, drv_active: 0x%08x\n",
3346 				   DRIVER_NAME, drv_state, drv_active);
3347 			break;
3348 		}
3349 
3350 		/*
3351 		 * When reset_owner times out, check which functions
3352 		 * acked/did not ack
3353 		 */
3354 		if (test_bit(AF_8XXX_RST_OWNER, &ha->flags)) {
3355 			ql4_printk(KERN_INFO, ha,
3356 				   "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
3357 				   __func__, ha->host_no, drv_state,
3358 				   drv_active);
3359 		}
3360 		qla4_82xx_idc_unlock(ha);
3361 		msleep(1000);
3362 		qla4_82xx_idc_lock(ha);
3363 
3364 		drv_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3365 		drv_active = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3366 	}
3367 
3368 	/* Clear RESET OWNER as we are not going to use it any further */
3369 	clear_bit(AF_8XXX_RST_OWNER, &ha->flags);
3370 
3371 	dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3372 	ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n", dev_state,
3373 		   dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
3374 
3375 	/* Force to DEV_COLD unless someone else is starting a reset */
3376 	if (dev_state != QLA8XXX_DEV_INITIALIZING) {
3377 		ql4_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
3378 		qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
3379 		qla4_8xxx_set_rst_ready(ha);
3380 	}
3381 }
3382 
3383 /**
3384  * qla4_8xxx_need_qsnt_handler - Code to start qsnt
3385  * @ha: pointer to adapter structure
3386  **/
3387 void
qla4_8xxx_need_qsnt_handler(struct scsi_qla_host * ha)3388 qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha)
3389 {
3390 	ha->isp_ops->idc_lock(ha);
3391 	qla4_8xxx_set_qsnt_ready(ha);
3392 	ha->isp_ops->idc_unlock(ha);
3393 }
3394 
qla4_82xx_set_idc_ver(struct scsi_qla_host * ha)3395 static void qla4_82xx_set_idc_ver(struct scsi_qla_host *ha)
3396 {
3397 	int idc_ver;
3398 	uint32_t drv_active;
3399 
3400 	drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3401 	if (drv_active == (1 << (ha->func_num * 4))) {
3402 		qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION,
3403 				    QLA82XX_IDC_VERSION);
3404 		ql4_printk(KERN_INFO, ha,
3405 			   "%s: IDC version updated to %d\n", __func__,
3406 			   QLA82XX_IDC_VERSION);
3407 	} else {
3408 		idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3409 		if (QLA82XX_IDC_VERSION != idc_ver) {
3410 			ql4_printk(KERN_INFO, ha,
3411 				   "%s: qla4xxx driver IDC version %d is not compatible with IDC version %d of other drivers!\n",
3412 				   __func__, QLA82XX_IDC_VERSION, idc_ver);
3413 		}
3414 	}
3415 }
3416 
qla4_83xx_set_idc_ver(struct scsi_qla_host * ha)3417 static int qla4_83xx_set_idc_ver(struct scsi_qla_host *ha)
3418 {
3419 	int idc_ver;
3420 	uint32_t drv_active;
3421 	int rval = QLA_SUCCESS;
3422 
3423 	drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3424 	if (drv_active == (1 << ha->func_num)) {
3425 		idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3426 		idc_ver &= (~0xFF);
3427 		idc_ver |= QLA83XX_IDC_VER_MAJ_VALUE;
3428 		qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION, idc_ver);
3429 		ql4_printk(KERN_INFO, ha,
3430 			   "%s: IDC version updated to %d\n", __func__,
3431 			   idc_ver);
3432 	} else {
3433 		idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3434 		idc_ver &= 0xFF;
3435 		if (QLA83XX_IDC_VER_MAJ_VALUE != idc_ver) {
3436 			ql4_printk(KERN_INFO, ha,
3437 				   "%s: qla4xxx driver IDC version %d is not compatible with IDC version %d of other drivers!\n",
3438 				   __func__, QLA83XX_IDC_VER_MAJ_VALUE,
3439 				   idc_ver);
3440 			rval = QLA_ERROR;
3441 			goto exit_set_idc_ver;
3442 		}
3443 	}
3444 
3445 	/* Update IDC_MINOR_VERSION */
3446 	idc_ver = qla4_83xx_rd_reg(ha, QLA83XX_CRB_IDC_VER_MINOR);
3447 	idc_ver &= ~(0x03 << (ha->func_num * 2));
3448 	idc_ver |= (QLA83XX_IDC_VER_MIN_VALUE << (ha->func_num * 2));
3449 	qla4_83xx_wr_reg(ha, QLA83XX_CRB_IDC_VER_MINOR, idc_ver);
3450 
3451 exit_set_idc_ver:
3452 	return rval;
3453 }
3454 
qla4_8xxx_update_idc_reg(struct scsi_qla_host * ha)3455 int qla4_8xxx_update_idc_reg(struct scsi_qla_host *ha)
3456 {
3457 	uint32_t drv_active;
3458 	int rval = QLA_SUCCESS;
3459 
3460 	if (test_bit(AF_INIT_DONE, &ha->flags))
3461 		goto exit_update_idc_reg;
3462 
3463 	ha->isp_ops->idc_lock(ha);
3464 	qla4_8xxx_set_drv_active(ha);
3465 
3466 	/*
3467 	 * If we are the first driver to load and
3468 	 * ql4xdontresethba is not set, clear IDC_CTRL BIT0.
3469 	 */
3470 	if (is_qla8032(ha) || is_qla8042(ha)) {
3471 		drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3472 		if ((drv_active == (1 << ha->func_num)) && !ql4xdontresethba)
3473 			qla4_83xx_clear_idc_dontreset(ha);
3474 	}
3475 
3476 	if (is_qla8022(ha)) {
3477 		qla4_82xx_set_idc_ver(ha);
3478 	} else if (is_qla8032(ha) || is_qla8042(ha)) {
3479 		rval = qla4_83xx_set_idc_ver(ha);
3480 		if (rval == QLA_ERROR)
3481 			qla4_8xxx_clear_drv_active(ha);
3482 	}
3483 
3484 	ha->isp_ops->idc_unlock(ha);
3485 
3486 exit_update_idc_reg:
3487 	return rval;
3488 }
3489 
3490 /**
3491  * qla4_8xxx_device_state_handler - Adapter state machine
3492  * @ha: pointer to host adapter structure.
3493  *
3494  * Note: IDC lock must be UNLOCKED upon entry
3495  **/
qla4_8xxx_device_state_handler(struct scsi_qla_host * ha)3496 int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
3497 {
3498 	uint32_t dev_state;
3499 	int rval = QLA_SUCCESS;
3500 	unsigned long dev_init_timeout;
3501 
3502 	rval = qla4_8xxx_update_idc_reg(ha);
3503 	if (rval == QLA_ERROR)
3504 		goto exit_state_handler;
3505 
3506 	dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
3507 	DEBUG2(ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
3508 			  dev_state, dev_state < MAX_STATES ?
3509 			  qdev_state[dev_state] : "Unknown"));
3510 
3511 	/* wait for 30 seconds for device to go ready */
3512 	dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
3513 
3514 	ha->isp_ops->idc_lock(ha);
3515 	while (1) {
3516 
3517 		if (time_after_eq(jiffies, dev_init_timeout)) {
3518 			ql4_printk(KERN_WARNING, ha,
3519 				   "%s: Device Init Failed 0x%x = %s\n",
3520 				   DRIVER_NAME,
3521 				   dev_state, dev_state < MAX_STATES ?
3522 				   qdev_state[dev_state] : "Unknown");
3523 			qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3524 					    QLA8XXX_DEV_FAILED);
3525 		}
3526 
3527 		dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
3528 		ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
3529 			   dev_state, dev_state < MAX_STATES ?
3530 			   qdev_state[dev_state] : "Unknown");
3531 
3532 		/* NOTE: Make sure idc unlocked upon exit of switch statement */
3533 		switch (dev_state) {
3534 		case QLA8XXX_DEV_READY:
3535 			goto exit;
3536 		case QLA8XXX_DEV_COLD:
3537 			rval = qla4_8xxx_device_bootstrap(ha);
3538 			goto exit;
3539 		case QLA8XXX_DEV_INITIALIZING:
3540 			ha->isp_ops->idc_unlock(ha);
3541 			msleep(1000);
3542 			ha->isp_ops->idc_lock(ha);
3543 			break;
3544 		case QLA8XXX_DEV_NEED_RESET:
3545 			/*
3546 			 * For ISP8324 and ISP8042, if NEED_RESET is set by any
3547 			 * driver, it should be honored, irrespective of
3548 			 * IDC_CTRL DONTRESET_BIT0
3549 			 */
3550 			if (is_qla8032(ha) || is_qla8042(ha)) {
3551 				qla4_83xx_need_reset_handler(ha);
3552 			} else if (is_qla8022(ha)) {
3553 				if (!ql4xdontresethba) {
3554 					qla4_82xx_need_reset_handler(ha);
3555 					/* Update timeout value after need
3556 					 * reset handler */
3557 					dev_init_timeout = jiffies +
3558 						(ha->nx_dev_init_timeout * HZ);
3559 				} else {
3560 					ha->isp_ops->idc_unlock(ha);
3561 					msleep(1000);
3562 					ha->isp_ops->idc_lock(ha);
3563 				}
3564 			}
3565 			break;
3566 		case QLA8XXX_DEV_NEED_QUIESCENT:
3567 			/* idc locked/unlocked in handler */
3568 			qla4_8xxx_need_qsnt_handler(ha);
3569 			break;
3570 		case QLA8XXX_DEV_QUIESCENT:
3571 			ha->isp_ops->idc_unlock(ha);
3572 			msleep(1000);
3573 			ha->isp_ops->idc_lock(ha);
3574 			break;
3575 		case QLA8XXX_DEV_FAILED:
3576 			ha->isp_ops->idc_unlock(ha);
3577 			qla4xxx_dead_adapter_cleanup(ha);
3578 			rval = QLA_ERROR;
3579 			ha->isp_ops->idc_lock(ha);
3580 			goto exit;
3581 		default:
3582 			ha->isp_ops->idc_unlock(ha);
3583 			qla4xxx_dead_adapter_cleanup(ha);
3584 			rval = QLA_ERROR;
3585 			ha->isp_ops->idc_lock(ha);
3586 			goto exit;
3587 		}
3588 	}
3589 exit:
3590 	ha->isp_ops->idc_unlock(ha);
3591 exit_state_handler:
3592 	return rval;
3593 }
3594 
qla4_8xxx_load_risc(struct scsi_qla_host * ha)3595 int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
3596 {
3597 	int retval;
3598 
3599 	/* clear the interrupt */
3600 	if (is_qla8032(ha) || is_qla8042(ha)) {
3601 		writel(0, &ha->qla4_83xx_reg->risc_intr);
3602 		readl(&ha->qla4_83xx_reg->risc_intr);
3603 	} else if (is_qla8022(ha)) {
3604 		writel(0, &ha->qla4_82xx_reg->host_int);
3605 		readl(&ha->qla4_82xx_reg->host_int);
3606 	}
3607 
3608 	retval = qla4_8xxx_device_state_handler(ha);
3609 
3610 	/* Initialize request and response queues. */
3611 	if (retval == QLA_SUCCESS)
3612 		qla4xxx_init_rings(ha);
3613 
3614 	if (retval == QLA_SUCCESS && !test_bit(AF_IRQ_ATTACHED, &ha->flags))
3615 		retval = qla4xxx_request_irqs(ha);
3616 
3617 	return retval;
3618 }
3619 
3620 /*****************************************************************************/
3621 /* Flash Manipulation Routines                                               */
3622 /*****************************************************************************/
3623 
3624 #define OPTROM_BURST_SIZE       0x1000
3625 #define OPTROM_BURST_DWORDS     (OPTROM_BURST_SIZE / 4)
3626 
3627 #define FARX_DATA_FLAG	BIT_31
3628 #define FARX_ACCESS_FLASH_CONF	0x7FFD0000
3629 #define FARX_ACCESS_FLASH_DATA	0x7FF00000
3630 
3631 static inline uint32_t
flash_conf_addr(struct ql82xx_hw_data * hw,uint32_t faddr)3632 flash_conf_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
3633 {
3634 	return hw->flash_conf_off | faddr;
3635 }
3636 
3637 static uint32_t *
qla4_82xx_read_flash_data(struct scsi_qla_host * ha,uint32_t * dwptr,uint32_t faddr,uint32_t length)3638 qla4_82xx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
3639     uint32_t faddr, uint32_t length)
3640 {
3641 	uint32_t i;
3642 	uint32_t val;
3643 	int loops = 0;
3644 	while ((qla4_82xx_rom_lock(ha) != 0) && (loops < 50000)) {
3645 		udelay(100);
3646 		cond_resched();
3647 		loops++;
3648 	}
3649 	if (loops >= 50000) {
3650 		ql4_printk(KERN_WARNING, ha, "ROM lock failed\n");
3651 		return dwptr;
3652 	}
3653 
3654 	/* Dword reads to flash. */
3655 	for (i = 0; i < length/4; i++, faddr += 4) {
3656 		if (qla4_82xx_do_rom_fast_read(ha, faddr, &val)) {
3657 			ql4_printk(KERN_WARNING, ha,
3658 			    "Do ROM fast read failed\n");
3659 			goto done_read;
3660 		}
3661 		dwptr[i] = cpu_to_le32(val);
3662 	}
3663 
3664 done_read:
3665 	qla4_82xx_rom_unlock(ha);
3666 	return dwptr;
3667 }
3668 
3669 /*
3670  * Address and length are byte address
3671  */
3672 static uint8_t *
qla4_82xx_read_optrom_data(struct scsi_qla_host * ha,uint8_t * buf,uint32_t offset,uint32_t length)3673 qla4_82xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
3674 		uint32_t offset, uint32_t length)
3675 {
3676 	qla4_82xx_read_flash_data(ha, (uint32_t *)buf, offset, length);
3677 	return buf;
3678 }
3679 
3680 static int
qla4_8xxx_find_flt_start(struct scsi_qla_host * ha,uint32_t * start)3681 qla4_8xxx_find_flt_start(struct scsi_qla_host *ha, uint32_t *start)
3682 {
3683 	const char *loc, *locations[] = { "DEF", "PCI" };
3684 
3685 	/*
3686 	 * FLT-location structure resides after the last PCI region.
3687 	 */
3688 
3689 	/* Begin with sane defaults. */
3690 	loc = locations[0];
3691 	*start = FA_FLASH_LAYOUT_ADDR_82;
3692 
3693 	DEBUG2(ql4_printk(KERN_INFO, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
3694 	return QLA_SUCCESS;
3695 }
3696 
3697 static void
qla4_8xxx_get_flt_info(struct scsi_qla_host * ha,uint32_t flt_addr)3698 qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
3699 {
3700 	const char *loc, *locations[] = { "DEF", "FLT" };
3701 	uint16_t *wptr;
3702 	uint16_t cnt, chksum;
3703 	uint32_t start, status;
3704 	struct qla_flt_header *flt;
3705 	struct qla_flt_region *region;
3706 	struct ql82xx_hw_data *hw = &ha->hw;
3707 
3708 	hw->flt_region_flt = flt_addr;
3709 	wptr = (uint16_t *)ha->request_ring;
3710 	flt = (struct qla_flt_header *)ha->request_ring;
3711 	region = (struct qla_flt_region *)&flt[1];
3712 
3713 	if (is_qla8022(ha)) {
3714 		qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3715 					   flt_addr << 2, OPTROM_BURST_SIZE);
3716 	} else if (is_qla8032(ha) || is_qla8042(ha)) {
3717 		status = qla4_83xx_flash_read_u32(ha, flt_addr << 2,
3718 						  (uint8_t *)ha->request_ring,
3719 						  0x400);
3720 		if (status != QLA_SUCCESS)
3721 			goto no_flash_data;
3722 	}
3723 
3724 	if (*wptr == cpu_to_le16(0xffff))
3725 		goto no_flash_data;
3726 	if (flt->version != cpu_to_le16(1)) {
3727 		DEBUG2(ql4_printk(KERN_INFO, ha, "Unsupported FLT detected: "
3728 			"version=0x%x length=0x%x checksum=0x%x.\n",
3729 			le16_to_cpu(flt->version), le16_to_cpu(flt->length),
3730 			le16_to_cpu(flt->checksum)));
3731 		goto no_flash_data;
3732 	}
3733 
3734 	cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
3735 	for (chksum = 0; cnt; cnt--)
3736 		chksum += le16_to_cpu(*wptr++);
3737 	if (chksum) {
3738 		DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
3739 			"version=0x%x length=0x%x checksum=0x%x.\n",
3740 			le16_to_cpu(flt->version), le16_to_cpu(flt->length),
3741 			chksum));
3742 		goto no_flash_data;
3743 	}
3744 
3745 	loc = locations[1];
3746 	cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
3747 	for ( ; cnt; cnt--, region++) {
3748 		/* Store addresses as DWORD offsets. */
3749 		start = le32_to_cpu(region->start) >> 2;
3750 
3751 		DEBUG3(ql4_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
3752 		    "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
3753 		    le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
3754 
3755 		switch (le32_to_cpu(region->code) & 0xff) {
3756 		case FLT_REG_FDT:
3757 			hw->flt_region_fdt = start;
3758 			break;
3759 		case FLT_REG_BOOT_CODE_82:
3760 			hw->flt_region_boot = start;
3761 			break;
3762 		case FLT_REG_FW_82:
3763 		case FLT_REG_FW_82_1:
3764 			hw->flt_region_fw = start;
3765 			break;
3766 		case FLT_REG_BOOTLOAD_82:
3767 			hw->flt_region_bootload = start;
3768 			break;
3769 		case FLT_REG_ISCSI_PARAM:
3770 			hw->flt_iscsi_param =  start;
3771 			break;
3772 		case FLT_REG_ISCSI_CHAP:
3773 			hw->flt_region_chap =  start;
3774 			hw->flt_chap_size =  le32_to_cpu(region->size);
3775 			break;
3776 		case FLT_REG_ISCSI_DDB:
3777 			hw->flt_region_ddb =  start;
3778 			hw->flt_ddb_size =  le32_to_cpu(region->size);
3779 			break;
3780 		}
3781 	}
3782 	goto done;
3783 
3784 no_flash_data:
3785 	/* Use hardcoded defaults. */
3786 	loc = locations[0];
3787 
3788 	hw->flt_region_fdt      = FA_FLASH_DESCR_ADDR_82;
3789 	hw->flt_region_boot     = FA_BOOT_CODE_ADDR_82;
3790 	hw->flt_region_bootload = FA_BOOT_LOAD_ADDR_82;
3791 	hw->flt_region_fw       = FA_RISC_CODE_ADDR_82;
3792 	hw->flt_region_chap	= FA_FLASH_ISCSI_CHAP >> 2;
3793 	hw->flt_chap_size	= FA_FLASH_CHAP_SIZE;
3794 	hw->flt_region_ddb	= FA_FLASH_ISCSI_DDB >> 2;
3795 	hw->flt_ddb_size	= FA_FLASH_DDB_SIZE;
3796 
3797 done:
3798 	DEBUG2(ql4_printk(KERN_INFO, ha,
3799 			  "FLT[%s]: flt=0x%x fdt=0x%x boot=0x%x bootload=0x%x fw=0x%x chap=0x%x chap_size=0x%x ddb=0x%x  ddb_size=0x%x\n",
3800 			  loc, hw->flt_region_flt, hw->flt_region_fdt,
3801 			  hw->flt_region_boot, hw->flt_region_bootload,
3802 			  hw->flt_region_fw, hw->flt_region_chap,
3803 			  hw->flt_chap_size, hw->flt_region_ddb,
3804 			  hw->flt_ddb_size));
3805 }
3806 
3807 static void
qla4_82xx_get_fdt_info(struct scsi_qla_host * ha)3808 qla4_82xx_get_fdt_info(struct scsi_qla_host *ha)
3809 {
3810 #define FLASH_BLK_SIZE_4K       0x1000
3811 #define FLASH_BLK_SIZE_32K      0x8000
3812 #define FLASH_BLK_SIZE_64K      0x10000
3813 	const char *loc, *locations[] = { "MID", "FDT" };
3814 	uint16_t cnt, chksum;
3815 	uint16_t *wptr;
3816 	struct qla_fdt_layout *fdt;
3817 	uint16_t mid = 0;
3818 	uint16_t fid = 0;
3819 	struct ql82xx_hw_data *hw = &ha->hw;
3820 
3821 	hw->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3822 	hw->flash_data_off = FARX_ACCESS_FLASH_DATA;
3823 
3824 	wptr = (uint16_t *)ha->request_ring;
3825 	fdt = (struct qla_fdt_layout *)ha->request_ring;
3826 	qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3827 	    hw->flt_region_fdt << 2, OPTROM_BURST_SIZE);
3828 
3829 	if (*wptr == cpu_to_le16(0xffff))
3830 		goto no_flash_data;
3831 
3832 	if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
3833 	    fdt->sig[3] != 'D')
3834 		goto no_flash_data;
3835 
3836 	for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
3837 	    cnt++)
3838 		chksum += le16_to_cpu(*wptr++);
3839 
3840 	if (chksum) {
3841 		DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
3842 		    "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
3843 		    le16_to_cpu(fdt->version)));
3844 		goto no_flash_data;
3845 	}
3846 
3847 	loc = locations[1];
3848 	mid = le16_to_cpu(fdt->man_id);
3849 	fid = le16_to_cpu(fdt->id);
3850 	hw->fdt_wrt_disable = fdt->wrt_disable_bits;
3851 	hw->fdt_erase_cmd = flash_conf_addr(hw, 0x0300 | fdt->erase_cmd);
3852 	hw->fdt_block_size = le32_to_cpu(fdt->block_size);
3853 
3854 	if (fdt->unprotect_sec_cmd) {
3855 		hw->fdt_unprotect_sec_cmd = flash_conf_addr(hw, 0x0300 |
3856 		    fdt->unprotect_sec_cmd);
3857 		hw->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
3858 		    flash_conf_addr(hw, 0x0300 | fdt->protect_sec_cmd) :
3859 		    flash_conf_addr(hw, 0x0336);
3860 	}
3861 	goto done;
3862 
3863 no_flash_data:
3864 	loc = locations[0];
3865 	hw->fdt_block_size = FLASH_BLK_SIZE_64K;
3866 done:
3867 	DEBUG2(ql4_printk(KERN_INFO, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
3868 		"pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
3869 		hw->fdt_erase_cmd, hw->fdt_protect_sec_cmd,
3870 		hw->fdt_unprotect_sec_cmd, hw->fdt_wrt_disable,
3871 		hw->fdt_block_size));
3872 }
3873 
3874 static void
qla4_82xx_get_idc_param(struct scsi_qla_host * ha)3875 qla4_82xx_get_idc_param(struct scsi_qla_host *ha)
3876 {
3877 #define QLA82XX_IDC_PARAM_ADDR      0x003e885c
3878 	uint32_t *wptr;
3879 
3880 	if (!is_qla8022(ha))
3881 		return;
3882 	wptr = (uint32_t *)ha->request_ring;
3883 	qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3884 			QLA82XX_IDC_PARAM_ADDR , 8);
3885 
3886 	if (*wptr == cpu_to_le32(0xffffffff)) {
3887 		ha->nx_dev_init_timeout = ROM_DEV_INIT_TIMEOUT;
3888 		ha->nx_reset_timeout = ROM_DRV_RESET_ACK_TIMEOUT;
3889 	} else {
3890 		ha->nx_dev_init_timeout = le32_to_cpu(*wptr++);
3891 		ha->nx_reset_timeout = le32_to_cpu(*wptr);
3892 	}
3893 
3894 	DEBUG2(ql4_printk(KERN_DEBUG, ha,
3895 		"ha->nx_dev_init_timeout = %d\n", ha->nx_dev_init_timeout));
3896 	DEBUG2(ql4_printk(KERN_DEBUG, ha,
3897 		"ha->nx_reset_timeout = %d\n", ha->nx_reset_timeout));
3898 	return;
3899 }
3900 
qla4_82xx_queue_mbox_cmd(struct scsi_qla_host * ha,uint32_t * mbx_cmd,int in_count)3901 void qla4_82xx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
3902 			      int in_count)
3903 {
3904 	int i;
3905 
3906 	/* Load all mailbox registers, except mailbox 0. */
3907 	for (i = 1; i < in_count; i++)
3908 		writel(mbx_cmd[i], &ha->qla4_82xx_reg->mailbox_in[i]);
3909 
3910 	/* Wakeup firmware  */
3911 	writel(mbx_cmd[0], &ha->qla4_82xx_reg->mailbox_in[0]);
3912 	readl(&ha->qla4_82xx_reg->mailbox_in[0]);
3913 	writel(HINT_MBX_INT_PENDING, &ha->qla4_82xx_reg->hint);
3914 	readl(&ha->qla4_82xx_reg->hint);
3915 }
3916 
qla4_82xx_process_mbox_intr(struct scsi_qla_host * ha,int out_count)3917 void qla4_82xx_process_mbox_intr(struct scsi_qla_host *ha, int out_count)
3918 {
3919 	int intr_status;
3920 
3921 	intr_status = readl(&ha->qla4_82xx_reg->host_int);
3922 	if (intr_status & ISRX_82XX_RISC_INT) {
3923 		ha->mbox_status_count = out_count;
3924 		intr_status = readl(&ha->qla4_82xx_reg->host_status);
3925 		ha->isp_ops->interrupt_service_routine(ha, intr_status);
3926 
3927 		if (test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
3928 		    (!ha->pdev->msi_enabled && !ha->pdev->msix_enabled))
3929 			qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg,
3930 					0xfbff);
3931 	}
3932 }
3933 
3934 int
qla4_8xxx_get_flash_info(struct scsi_qla_host * ha)3935 qla4_8xxx_get_flash_info(struct scsi_qla_host *ha)
3936 {
3937 	int ret;
3938 	uint32_t flt_addr;
3939 
3940 	ret = qla4_8xxx_find_flt_start(ha, &flt_addr);
3941 	if (ret != QLA_SUCCESS)
3942 		return ret;
3943 
3944 	qla4_8xxx_get_flt_info(ha, flt_addr);
3945 	if (is_qla8022(ha)) {
3946 		qla4_82xx_get_fdt_info(ha);
3947 		qla4_82xx_get_idc_param(ha);
3948 	} else if (is_qla8032(ha) || is_qla8042(ha)) {
3949 		qla4_83xx_get_idc_param(ha);
3950 	}
3951 
3952 	return QLA_SUCCESS;
3953 }
3954 
3955 /**
3956  * qla4_8xxx_stop_firmware - stops firmware on specified adapter instance
3957  * @ha: pointer to host adapter structure.
3958  *
3959  * Remarks:
3960  * For iSCSI, throws away all I/O and AENs into bit bucket, so they will
3961  * not be available after successful return.  Driver must cleanup potential
3962  * outstanding I/O's after calling this funcion.
3963  **/
3964 int
qla4_8xxx_stop_firmware(struct scsi_qla_host * ha)3965 qla4_8xxx_stop_firmware(struct scsi_qla_host *ha)
3966 {
3967 	int status;
3968 	uint32_t mbox_cmd[MBOX_REG_COUNT];
3969 	uint32_t mbox_sts[MBOX_REG_COUNT];
3970 
3971 	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
3972 	memset(&mbox_sts, 0, sizeof(mbox_sts));
3973 
3974 	mbox_cmd[0] = MBOX_CMD_STOP_FW;
3975 	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1,
3976 	    &mbox_cmd[0], &mbox_sts[0]);
3977 
3978 	DEBUG2(printk("scsi%ld: %s: status = %d\n", ha->host_no,
3979 	    __func__, status));
3980 	return status;
3981 }
3982 
3983 /**
3984  * qla4_82xx_isp_reset - Resets ISP and aborts all outstanding commands.
3985  * @ha: pointer to host adapter structure.
3986  **/
3987 int
qla4_82xx_isp_reset(struct scsi_qla_host * ha)3988 qla4_82xx_isp_reset(struct scsi_qla_host *ha)
3989 {
3990 	int rval;
3991 	uint32_t dev_state;
3992 
3993 	qla4_82xx_idc_lock(ha);
3994 	dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3995 
3996 	if (dev_state == QLA8XXX_DEV_READY) {
3997 		ql4_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
3998 		qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3999 		    QLA8XXX_DEV_NEED_RESET);
4000 		set_bit(AF_8XXX_RST_OWNER, &ha->flags);
4001 	} else
4002 		ql4_printk(KERN_INFO, ha, "HW State: DEVICE INITIALIZING\n");
4003 
4004 	qla4_82xx_idc_unlock(ha);
4005 
4006 	rval = qla4_8xxx_device_state_handler(ha);
4007 
4008 	qla4_82xx_idc_lock(ha);
4009 	qla4_8xxx_clear_rst_ready(ha);
4010 	qla4_82xx_idc_unlock(ha);
4011 
4012 	if (rval == QLA_SUCCESS) {
4013 		ql4_printk(KERN_INFO, ha, "Clearing AF_RECOVERY in qla4_82xx_isp_reset\n");
4014 		clear_bit(AF_FW_RECOVERY, &ha->flags);
4015 	}
4016 
4017 	return rval;
4018 }
4019 
4020 /**
4021  * qla4_8xxx_get_sys_info - get adapter MAC address(es) and serial number
4022  * @ha: pointer to host adapter structure.
4023  *
4024  **/
qla4_8xxx_get_sys_info(struct scsi_qla_host * ha)4025 int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha)
4026 {
4027 	uint32_t mbox_cmd[MBOX_REG_COUNT];
4028 	uint32_t mbox_sts[MBOX_REG_COUNT];
4029 	struct mbx_sys_info *sys_info;
4030 	dma_addr_t sys_info_dma;
4031 	int status = QLA_ERROR;
4032 
4033 	sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
4034 				      &sys_info_dma, GFP_KERNEL);
4035 	if (sys_info == NULL) {
4036 		DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
4037 		    ha->host_no, __func__));
4038 		return status;
4039 	}
4040 
4041 	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4042 	memset(&mbox_sts, 0, sizeof(mbox_sts));
4043 
4044 	mbox_cmd[0] = MBOX_CMD_GET_SYS_INFO;
4045 	mbox_cmd[1] = LSDW(sys_info_dma);
4046 	mbox_cmd[2] = MSDW(sys_info_dma);
4047 	mbox_cmd[4] = sizeof(*sys_info);
4048 
4049 	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 6, &mbox_cmd[0],
4050 	    &mbox_sts[0]) != QLA_SUCCESS) {
4051 		DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO failed\n",
4052 		    ha->host_no, __func__));
4053 		goto exit_validate_mac82;
4054 	}
4055 
4056 	/* Make sure we receive the minimum required data to cache internally */
4057 	if (((is_qla8032(ha) || is_qla8042(ha)) ? mbox_sts[3] : mbox_sts[4]) <
4058 	    offsetof(struct mbx_sys_info, reserved)) {
4059 		DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO data receive"
4060 		    " error (%x)\n", ha->host_no, __func__, mbox_sts[4]));
4061 		goto exit_validate_mac82;
4062 	}
4063 
4064 	/* Save M.A.C. address & serial_number */
4065 	ha->port_num = sys_info->port_num;
4066 	memcpy(ha->my_mac, &sys_info->mac_addr[0],
4067 	    min(sizeof(ha->my_mac), sizeof(sys_info->mac_addr)));
4068 	memcpy(ha->serial_number, &sys_info->serial_number,
4069 	    min(sizeof(ha->serial_number), sizeof(sys_info->serial_number)));
4070 	memcpy(ha->model_name, &sys_info->board_id_str,
4071 	       min(sizeof(ha->model_name), sizeof(sys_info->board_id_str)));
4072 	ha->phy_port_cnt = sys_info->phys_port_cnt;
4073 	ha->phy_port_num = sys_info->port_num;
4074 	ha->iscsi_pci_func_cnt = sys_info->iscsi_pci_func_cnt;
4075 
4076 	DEBUG2(printk("scsi%ld: %s: mac %pM serial %s\n",
4077 	    ha->host_no, __func__, ha->my_mac, ha->serial_number));
4078 
4079 	status = QLA_SUCCESS;
4080 
4081 exit_validate_mac82:
4082 	dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
4083 			  sys_info_dma);
4084 	return status;
4085 }
4086 
4087 /* Interrupt handling helpers. */
4088 
qla4_8xxx_intr_enable(struct scsi_qla_host * ha)4089 int qla4_8xxx_intr_enable(struct scsi_qla_host *ha)
4090 {
4091 	uint32_t mbox_cmd[MBOX_REG_COUNT];
4092 	uint32_t mbox_sts[MBOX_REG_COUNT];
4093 
4094 	DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
4095 
4096 	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4097 	memset(&mbox_sts, 0, sizeof(mbox_sts));
4098 	mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
4099 	mbox_cmd[1] = INTR_ENABLE;
4100 	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
4101 		&mbox_sts[0]) != QLA_SUCCESS) {
4102 		DEBUG2(ql4_printk(KERN_INFO, ha,
4103 		    "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
4104 		    __func__, mbox_sts[0]));
4105 		return QLA_ERROR;
4106 	}
4107 	return QLA_SUCCESS;
4108 }
4109 
qla4_8xxx_intr_disable(struct scsi_qla_host * ha)4110 int qla4_8xxx_intr_disable(struct scsi_qla_host *ha)
4111 {
4112 	uint32_t mbox_cmd[MBOX_REG_COUNT];
4113 	uint32_t mbox_sts[MBOX_REG_COUNT];
4114 
4115 	DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
4116 
4117 	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4118 	memset(&mbox_sts, 0, sizeof(mbox_sts));
4119 	mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
4120 	mbox_cmd[1] = INTR_DISABLE;
4121 	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
4122 	    &mbox_sts[0]) != QLA_SUCCESS) {
4123 		DEBUG2(ql4_printk(KERN_INFO, ha,
4124 			"%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
4125 			__func__, mbox_sts[0]));
4126 		return QLA_ERROR;
4127 	}
4128 
4129 	return QLA_SUCCESS;
4130 }
4131 
4132 void
qla4_82xx_enable_intrs(struct scsi_qla_host * ha)4133 qla4_82xx_enable_intrs(struct scsi_qla_host *ha)
4134 {
4135 	qla4_8xxx_intr_enable(ha);
4136 
4137 	spin_lock_irq(&ha->hardware_lock);
4138 	/* BIT 10 - reset */
4139 	qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
4140 	spin_unlock_irq(&ha->hardware_lock);
4141 	set_bit(AF_INTERRUPTS_ON, &ha->flags);
4142 }
4143 
4144 void
qla4_82xx_disable_intrs(struct scsi_qla_host * ha)4145 qla4_82xx_disable_intrs(struct scsi_qla_host *ha)
4146 {
4147 	if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags))
4148 		qla4_8xxx_intr_disable(ha);
4149 
4150 	spin_lock_irq(&ha->hardware_lock);
4151 	/* BIT 10 - set */
4152 	qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
4153 	spin_unlock_irq(&ha->hardware_lock);
4154 }
4155 
4156 int
qla4_8xxx_enable_msix(struct scsi_qla_host * ha)4157 qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
4158 {
4159 	int ret;
4160 
4161 	ret = pci_alloc_irq_vectors(ha->pdev, QLA_MSIX_ENTRIES,
4162 			QLA_MSIX_ENTRIES, PCI_IRQ_MSIX);
4163 	if (ret < 0) {
4164 		ql4_printk(KERN_WARNING, ha,
4165 		    "MSI-X: Failed to enable support -- %d/%d\n",
4166 		    QLA_MSIX_ENTRIES, ret);
4167 		return ret;
4168 	}
4169 
4170 	ret = request_irq(pci_irq_vector(ha->pdev, 0),
4171 			qla4_8xxx_default_intr_handler, 0, "qla4xxx (default)",
4172 			ha);
4173 	if (ret)
4174 		goto out_free_vectors;
4175 
4176 	ret = request_irq(pci_irq_vector(ha->pdev, 1),
4177 			qla4_8xxx_msix_rsp_q, 0, "qla4xxx (rsp_q)", ha);
4178 	if (ret)
4179 		goto out_free_default_irq;
4180 
4181 	return 0;
4182 
4183 out_free_default_irq:
4184 	free_irq(pci_irq_vector(ha->pdev, 0), ha);
4185 out_free_vectors:
4186 	pci_free_irq_vectors(ha->pdev);
4187 	return ret;
4188 }
4189 
qla4_8xxx_check_init_adapter_retry(struct scsi_qla_host * ha)4190 int qla4_8xxx_check_init_adapter_retry(struct scsi_qla_host *ha)
4191 {
4192 	int status = QLA_SUCCESS;
4193 
4194 	/* Dont retry adapter initialization if IRQ allocation failed */
4195 	if (!test_bit(AF_IRQ_ATTACHED, &ha->flags)) {
4196 		ql4_printk(KERN_WARNING, ha, "%s: Skipping retry of adapter initialization as IRQs are not attached\n",
4197 			   __func__);
4198 		status = QLA_ERROR;
4199 		goto exit_init_adapter_failure;
4200 	}
4201 
4202 	/* Since interrupts are registered in start_firmware for
4203 	 * 8xxx, release them here if initialize_adapter fails
4204 	 * and retry adapter initialization */
4205 	qla4xxx_free_irqs(ha);
4206 
4207 exit_init_adapter_failure:
4208 	return status;
4209 }
4210