xref: /linux/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c (revision e9f0878c4b2004ac19581274c1ae4c61ae3ca70e)
1 /*
2  * QLogic qlcnic NIC Driver
3  * Copyright (c) 2009-2013 QLogic Corporation
4  *
5  * See LICENSE.qlcnic for copyright and licensing details.
6  */
7 
8 #include <linux/slab.h>
9 #include <net/ip.h>
10 #include <linux/bitops.h>
11 
12 #include "qlcnic.h"
13 #include "qlcnic_hdr.h"
14 
15 #define MASK(n) ((1ULL<<(n))-1)
16 #define OCM_WIN_P3P(addr) (addr & 0xffc0000)
17 
18 #define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
19 
20 #define CRB_BLK(off)	((off >> 20) & 0x3f)
21 #define CRB_SUBBLK(off)	((off >> 16) & 0xf)
22 #define CRB_WINDOW_2M	(0x130060)
23 #define CRB_HI(off)	((crb_hub_agt[CRB_BLK(off)] << 20) | ((off) & 0xf0000))
24 #define CRB_INDIRECT_2M	(0x1e0000UL)
25 
26 struct qlcnic_ms_reg_ctrl {
27 	u32 ocm_window;
28 	u32 control;
29 	u32 hi;
30 	u32 low;
31 	u32 rd[4];
32 	u32 wd[4];
33 	u64 off;
34 };
35 
36 #ifndef readq
37 static inline u64 readq(void __iomem *addr)
38 {
39 	return readl(addr) | (((u64) readl(addr + 4)) << 32LL);
40 }
41 #endif
42 
43 #ifndef writeq
44 static inline void writeq(u64 val, void __iomem *addr)
45 {
46 	writel(((u32) (val)), (addr));
47 	writel(((u32) (val >> 32)), (addr + 4));
48 }
49 #endif
50 
51 static struct crb_128M_2M_block_map
52 crb_128M_2M_map[64] __cacheline_aligned_in_smp = {
53     {{{0, 0,         0,         0} } },		/* 0: PCI */
54     {{{1, 0x0100000, 0x0102000, 0x120000},	/* 1: PCIE */
55 	  {1, 0x0110000, 0x0120000, 0x130000},
56 	  {1, 0x0120000, 0x0122000, 0x124000},
57 	  {1, 0x0130000, 0x0132000, 0x126000},
58 	  {1, 0x0140000, 0x0142000, 0x128000},
59 	  {1, 0x0150000, 0x0152000, 0x12a000},
60 	  {1, 0x0160000, 0x0170000, 0x110000},
61 	  {1, 0x0170000, 0x0172000, 0x12e000},
62 	  {0, 0x0000000, 0x0000000, 0x000000},
63 	  {0, 0x0000000, 0x0000000, 0x000000},
64 	  {0, 0x0000000, 0x0000000, 0x000000},
65 	  {0, 0x0000000, 0x0000000, 0x000000},
66 	  {0, 0x0000000, 0x0000000, 0x000000},
67 	  {0, 0x0000000, 0x0000000, 0x000000},
68 	  {1, 0x01e0000, 0x01e0800, 0x122000},
69 	  {0, 0x0000000, 0x0000000, 0x000000} } },
70 	{{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
71     {{{0, 0,         0,         0} } },	    /* 3: */
72     {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
73     {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE   */
74     {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU   */
75     {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM    */
76     {{{1, 0x0800000, 0x0802000, 0x170000},  /* 8: SQM0  */
77       {0, 0x0000000, 0x0000000, 0x000000},
78       {0, 0x0000000, 0x0000000, 0x000000},
79       {0, 0x0000000, 0x0000000, 0x000000},
80       {0, 0x0000000, 0x0000000, 0x000000},
81       {0, 0x0000000, 0x0000000, 0x000000},
82       {0, 0x0000000, 0x0000000, 0x000000},
83       {0, 0x0000000, 0x0000000, 0x000000},
84       {0, 0x0000000, 0x0000000, 0x000000},
85       {0, 0x0000000, 0x0000000, 0x000000},
86       {0, 0x0000000, 0x0000000, 0x000000},
87       {0, 0x0000000, 0x0000000, 0x000000},
88       {0, 0x0000000, 0x0000000, 0x000000},
89       {0, 0x0000000, 0x0000000, 0x000000},
90       {0, 0x0000000, 0x0000000, 0x000000},
91       {1, 0x08f0000, 0x08f2000, 0x172000} } },
92     {{{1, 0x0900000, 0x0902000, 0x174000},	/* 9: SQM1*/
93       {0, 0x0000000, 0x0000000, 0x000000},
94       {0, 0x0000000, 0x0000000, 0x000000},
95       {0, 0x0000000, 0x0000000, 0x000000},
96       {0, 0x0000000, 0x0000000, 0x000000},
97       {0, 0x0000000, 0x0000000, 0x000000},
98       {0, 0x0000000, 0x0000000, 0x000000},
99       {0, 0x0000000, 0x0000000, 0x000000},
100       {0, 0x0000000, 0x0000000, 0x000000},
101       {0, 0x0000000, 0x0000000, 0x000000},
102       {0, 0x0000000, 0x0000000, 0x000000},
103       {0, 0x0000000, 0x0000000, 0x000000},
104       {0, 0x0000000, 0x0000000, 0x000000},
105       {0, 0x0000000, 0x0000000, 0x000000},
106       {0, 0x0000000, 0x0000000, 0x000000},
107       {1, 0x09f0000, 0x09f2000, 0x176000} } },
108     {{{0, 0x0a00000, 0x0a02000, 0x178000},	/* 10: SQM2*/
109       {0, 0x0000000, 0x0000000, 0x000000},
110       {0, 0x0000000, 0x0000000, 0x000000},
111       {0, 0x0000000, 0x0000000, 0x000000},
112       {0, 0x0000000, 0x0000000, 0x000000},
113       {0, 0x0000000, 0x0000000, 0x000000},
114       {0, 0x0000000, 0x0000000, 0x000000},
115       {0, 0x0000000, 0x0000000, 0x000000},
116       {0, 0x0000000, 0x0000000, 0x000000},
117       {0, 0x0000000, 0x0000000, 0x000000},
118       {0, 0x0000000, 0x0000000, 0x000000},
119       {0, 0x0000000, 0x0000000, 0x000000},
120       {0, 0x0000000, 0x0000000, 0x000000},
121       {0, 0x0000000, 0x0000000, 0x000000},
122       {0, 0x0000000, 0x0000000, 0x000000},
123       {1, 0x0af0000, 0x0af2000, 0x17a000} } },
124     {{{0, 0x0b00000, 0x0b02000, 0x17c000},	/* 11: SQM3*/
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       {0, 0x0000000, 0x0000000, 0x000000},
131       {0, 0x0000000, 0x0000000, 0x000000},
132       {0, 0x0000000, 0x0000000, 0x000000},
133       {0, 0x0000000, 0x0000000, 0x000000},
134       {0, 0x0000000, 0x0000000, 0x000000},
135       {0, 0x0000000, 0x0000000, 0x000000},
136       {0, 0x0000000, 0x0000000, 0x000000},
137       {0, 0x0000000, 0x0000000, 0x000000},
138       {0, 0x0000000, 0x0000000, 0x000000},
139       {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
140 	{{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
141 	{{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
142 	{{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
143 	{{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
144 	{{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
145 	{{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
146 	{{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
147 	{{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
148 	{{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
149 	{{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
150 	{{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
151 	{{{0, 0,         0,         0} } },	/* 23: */
152 	{{{0, 0,         0,         0} } },	/* 24: */
153 	{{{0, 0,         0,         0} } },	/* 25: */
154 	{{{0, 0,         0,         0} } },	/* 26: */
155 	{{{0, 0,         0,         0} } },	/* 27: */
156 	{{{0, 0,         0,         0} } },	/* 28: */
157 	{{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
158     {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
159     {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
160 	{{{0} } },				/* 32: PCI */
161 	{{{1, 0x2100000, 0x2102000, 0x120000},	/* 33: PCIE */
162 	  {1, 0x2110000, 0x2120000, 0x130000},
163 	  {1, 0x2120000, 0x2122000, 0x124000},
164 	  {1, 0x2130000, 0x2132000, 0x126000},
165 	  {1, 0x2140000, 0x2142000, 0x128000},
166 	  {1, 0x2150000, 0x2152000, 0x12a000},
167 	  {1, 0x2160000, 0x2170000, 0x110000},
168 	  {1, 0x2170000, 0x2172000, 0x12e000},
169 	  {0, 0x0000000, 0x0000000, 0x000000},
170 	  {0, 0x0000000, 0x0000000, 0x000000},
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 	{{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
178 	{{{0} } },				/* 35: */
179 	{{{0} } },				/* 36: */
180 	{{{0} } },				/* 37: */
181 	{{{0} } },				/* 38: */
182 	{{{0} } },				/* 39: */
183 	{{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
184 	{{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
185 	{{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
186 	{{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
187 	{{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
188 	{{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
189 	{{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
190 	{{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
191 	{{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
192 	{{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
193 	{{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
194 	{{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
195 	{{{0} } },				/* 52: */
196 	{{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
197 	{{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
198 	{{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
199 	{{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
200 	{{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
201 	{{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
202 	{{{0} } },				/* 59: I2C0 */
203 	{{{0} } },				/* 60: I2C1 */
204 	{{{1, 0x3d00000, 0x3d04000, 0x1d8000} } },/* 61: LPC */
205 	{{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
206 	{{{1, 0x3f00000, 0x3f01000, 0x168000} } }	/* 63: P2NR0 */
207 };
208 
209 /*
210  * top 12 bits of crb internal address (hub, agent)
211  */
212 static const unsigned crb_hub_agt[64] = {
213 	0,
214 	QLCNIC_HW_CRB_HUB_AGT_ADR_PS,
215 	QLCNIC_HW_CRB_HUB_AGT_ADR_MN,
216 	QLCNIC_HW_CRB_HUB_AGT_ADR_MS,
217 	0,
218 	QLCNIC_HW_CRB_HUB_AGT_ADR_SRE,
219 	QLCNIC_HW_CRB_HUB_AGT_ADR_NIU,
220 	QLCNIC_HW_CRB_HUB_AGT_ADR_QMN,
221 	QLCNIC_HW_CRB_HUB_AGT_ADR_SQN0,
222 	QLCNIC_HW_CRB_HUB_AGT_ADR_SQN1,
223 	QLCNIC_HW_CRB_HUB_AGT_ADR_SQN2,
224 	QLCNIC_HW_CRB_HUB_AGT_ADR_SQN3,
225 	QLCNIC_HW_CRB_HUB_AGT_ADR_I2Q,
226 	QLCNIC_HW_CRB_HUB_AGT_ADR_TIMR,
227 	QLCNIC_HW_CRB_HUB_AGT_ADR_ROMUSB,
228 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGN4,
229 	QLCNIC_HW_CRB_HUB_AGT_ADR_XDMA,
230 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGN0,
231 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGN1,
232 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGN2,
233 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGN3,
234 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGND,
235 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGNI,
236 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGS0,
237 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGS1,
238 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGS2,
239 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGS3,
240 	0,
241 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGSI,
242 	QLCNIC_HW_CRB_HUB_AGT_ADR_SN,
243 	0,
244 	QLCNIC_HW_CRB_HUB_AGT_ADR_EG,
245 	0,
246 	QLCNIC_HW_CRB_HUB_AGT_ADR_PS,
247 	QLCNIC_HW_CRB_HUB_AGT_ADR_CAM,
248 	0,
249 	0,
250 	0,
251 	0,
252 	0,
253 	QLCNIC_HW_CRB_HUB_AGT_ADR_TIMR,
254 	0,
255 	QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX1,
256 	QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX2,
257 	QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX3,
258 	QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX4,
259 	QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX5,
260 	QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX6,
261 	QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX7,
262 	QLCNIC_HW_CRB_HUB_AGT_ADR_XDMA,
263 	QLCNIC_HW_CRB_HUB_AGT_ADR_I2Q,
264 	QLCNIC_HW_CRB_HUB_AGT_ADR_ROMUSB,
265 	0,
266 	QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX0,
267 	QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX8,
268 	QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX9,
269 	QLCNIC_HW_CRB_HUB_AGT_ADR_OCM0,
270 	0,
271 	QLCNIC_HW_CRB_HUB_AGT_ADR_SMB,
272 	QLCNIC_HW_CRB_HUB_AGT_ADR_I2C0,
273 	QLCNIC_HW_CRB_HUB_AGT_ADR_I2C1,
274 	0,
275 	QLCNIC_HW_CRB_HUB_AGT_ADR_PGNC,
276 	0,
277 };
278 
279 /*  PCI Windowing for DDR regions.  */
280 
281 #define QLCNIC_PCIE_SEM_TIMEOUT	10000
282 
283 static void qlcnic_read_window_reg(u32 addr, void __iomem *bar0, u32 *data)
284 {
285 	u32 dest;
286 	void __iomem *val;
287 
288 	dest = addr & 0xFFFF0000;
289 	val = bar0 + QLCNIC_FW_DUMP_REG1;
290 	writel(dest, val);
291 	readl(val);
292 	val = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
293 	*data = readl(val);
294 }
295 
296 static void qlcnic_write_window_reg(u32 addr, void __iomem *bar0, u32 data)
297 {
298 	u32 dest;
299 	void __iomem *val;
300 
301 	dest = addr & 0xFFFF0000;
302 	val = bar0 + QLCNIC_FW_DUMP_REG1;
303 	writel(dest, val);
304 	readl(val);
305 	val = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
306 	writel(data, val);
307 	readl(val);
308 }
309 
310 int
311 qlcnic_pcie_sem_lock(struct qlcnic_adapter *adapter, int sem, u32 id_reg)
312 {
313 	int timeout = 0, err = 0, done = 0;
314 
315 	while (!done) {
316 		done = QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_LOCK(sem)),
317 			       &err);
318 		if (done == 1)
319 			break;
320 		if (++timeout >= QLCNIC_PCIE_SEM_TIMEOUT) {
321 			if (id_reg) {
322 				done = QLCRD32(adapter, id_reg, &err);
323 				if (done != -1)
324 					dev_err(&adapter->pdev->dev,
325 						"Failed to acquire sem=%d lock held by=%d\n",
326 						sem, done);
327 				else
328 					dev_err(&adapter->pdev->dev,
329 						"Failed to acquire sem=%d lock",
330 						sem);
331 			} else {
332 				dev_err(&adapter->pdev->dev,
333 					"Failed to acquire sem=%d lock", sem);
334 			}
335 			return -EIO;
336 		}
337 		udelay(1200);
338 	}
339 
340 	if (id_reg)
341 		QLCWR32(adapter, id_reg, adapter->portnum);
342 
343 	return 0;
344 }
345 
346 void
347 qlcnic_pcie_sem_unlock(struct qlcnic_adapter *adapter, int sem)
348 {
349 	int err = 0;
350 
351 	QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_UNLOCK(sem)), &err);
352 }
353 
354 int qlcnic_ind_rd(struct qlcnic_adapter *adapter, u32 addr)
355 {
356 	int err = 0;
357 	u32 data;
358 
359 	if (qlcnic_82xx_check(adapter))
360 		qlcnic_read_window_reg(addr, adapter->ahw->pci_base0, &data);
361 	else {
362 		data = QLCRD32(adapter, addr, &err);
363 		if (err == -EIO)
364 			return err;
365 	}
366 	return data;
367 }
368 
369 int qlcnic_ind_wr(struct qlcnic_adapter *adapter, u32 addr, u32 data)
370 {
371 	int ret = 0;
372 
373 	if (qlcnic_82xx_check(adapter))
374 		qlcnic_write_window_reg(addr, adapter->ahw->pci_base0, data);
375 	else
376 		ret = qlcnic_83xx_wrt_reg_indirect(adapter, addr, data);
377 
378 	return ret;
379 }
380 
381 static int
382 qlcnic_send_cmd_descs(struct qlcnic_adapter *adapter,
383 		struct cmd_desc_type0 *cmd_desc_arr, int nr_desc)
384 {
385 	u32 i, producer;
386 	struct qlcnic_cmd_buffer *pbuf;
387 	struct cmd_desc_type0 *cmd_desc;
388 	struct qlcnic_host_tx_ring *tx_ring;
389 
390 	i = 0;
391 
392 	if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
393 		return -EIO;
394 
395 	tx_ring = &adapter->tx_ring[0];
396 	__netif_tx_lock_bh(tx_ring->txq);
397 
398 	producer = tx_ring->producer;
399 
400 	if (nr_desc >= qlcnic_tx_avail(tx_ring)) {
401 		netif_tx_stop_queue(tx_ring->txq);
402 		smp_mb();
403 		if (qlcnic_tx_avail(tx_ring) > nr_desc) {
404 			if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
405 				netif_tx_wake_queue(tx_ring->txq);
406 		} else {
407 			adapter->stats.xmit_off++;
408 			__netif_tx_unlock_bh(tx_ring->txq);
409 			return -EBUSY;
410 		}
411 	}
412 
413 	do {
414 		cmd_desc = &cmd_desc_arr[i];
415 
416 		pbuf = &tx_ring->cmd_buf_arr[producer];
417 		pbuf->skb = NULL;
418 		pbuf->frag_count = 0;
419 
420 		memcpy(&tx_ring->desc_head[producer],
421 		       cmd_desc, sizeof(struct cmd_desc_type0));
422 
423 		producer = get_next_index(producer, tx_ring->num_desc);
424 		i++;
425 
426 	} while (i != nr_desc);
427 
428 	tx_ring->producer = producer;
429 
430 	qlcnic_update_cmd_producer(tx_ring);
431 
432 	__netif_tx_unlock_bh(tx_ring->txq);
433 
434 	return 0;
435 }
436 
437 int qlcnic_82xx_sre_macaddr_change(struct qlcnic_adapter *adapter, u8 *addr,
438 				   u16 vlan_id, u8 op)
439 {
440 	struct qlcnic_nic_req req;
441 	struct qlcnic_mac_req *mac_req;
442 	struct qlcnic_vlan_req *vlan_req;
443 	u64 word;
444 
445 	memset(&req, 0, sizeof(struct qlcnic_nic_req));
446 	req.qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
447 
448 	word = QLCNIC_MAC_EVENT | ((u64)adapter->portnum << 16);
449 	req.req_hdr = cpu_to_le64(word);
450 
451 	mac_req = (struct qlcnic_mac_req *)&req.words[0];
452 	mac_req->op = op;
453 	memcpy(mac_req->mac_addr, addr, ETH_ALEN);
454 
455 	vlan_req = (struct qlcnic_vlan_req *)&req.words[1];
456 	vlan_req->vlan_id = cpu_to_le16(vlan_id);
457 
458 	return qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
459 }
460 
461 int qlcnic_nic_del_mac(struct qlcnic_adapter *adapter, const u8 *addr)
462 {
463 	struct qlcnic_mac_vlan_list *cur;
464 	struct list_head *head;
465 	int err = -EINVAL;
466 
467 	/* Delete MAC from the existing list */
468 	list_for_each(head, &adapter->mac_list) {
469 		cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
470 		if (ether_addr_equal(addr, cur->mac_addr)) {
471 			err = qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
472 							0, QLCNIC_MAC_DEL);
473 			if (err)
474 				return err;
475 			list_del(&cur->list);
476 			kfree(cur);
477 			return err;
478 		}
479 	}
480 	return err;
481 }
482 
483 int qlcnic_nic_add_mac(struct qlcnic_adapter *adapter, const u8 *addr, u16 vlan,
484 		       enum qlcnic_mac_type mac_type)
485 {
486 	struct qlcnic_mac_vlan_list *cur;
487 	struct list_head *head;
488 
489 	/* look up if already exists */
490 	list_for_each(head, &adapter->mac_list) {
491 		cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
492 		if (ether_addr_equal(addr, cur->mac_addr) &&
493 		    cur->vlan_id == vlan)
494 			return 0;
495 	}
496 
497 	cur = kzalloc(sizeof(*cur), GFP_ATOMIC);
498 	if (cur == NULL)
499 		return -ENOMEM;
500 
501 	memcpy(cur->mac_addr, addr, ETH_ALEN);
502 
503 	if (qlcnic_sre_macaddr_change(adapter,
504 				cur->mac_addr, vlan, QLCNIC_MAC_ADD)) {
505 		kfree(cur);
506 		return -EIO;
507 	}
508 
509 	cur->vlan_id = vlan;
510 	cur->mac_type = mac_type;
511 
512 	list_add_tail(&cur->list, &adapter->mac_list);
513 	return 0;
514 }
515 
516 void qlcnic_flush_mcast_mac(struct qlcnic_adapter *adapter)
517 {
518 	struct qlcnic_mac_vlan_list *cur;
519 	struct list_head *head, *tmp;
520 
521 	list_for_each_safe(head, tmp, &adapter->mac_list) {
522 		cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
523 		if (cur->mac_type != QLCNIC_MULTICAST_MAC)
524 			continue;
525 
526 		qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
527 					  cur->vlan_id, QLCNIC_MAC_DEL);
528 		list_del(&cur->list);
529 		kfree(cur);
530 	}
531 }
532 
533 static void __qlcnic_set_multi(struct net_device *netdev, u16 vlan)
534 {
535 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
536 	struct qlcnic_hardware_context *ahw = adapter->ahw;
537 	struct netdev_hw_addr *ha;
538 	static const u8 bcast_addr[ETH_ALEN] = {
539 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff
540 	};
541 	u32 mode = VPORT_MISS_MODE_DROP;
542 
543 	if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
544 		return;
545 
546 	qlcnic_nic_add_mac(adapter, adapter->mac_addr, vlan,
547 			   QLCNIC_UNICAST_MAC);
548 	qlcnic_nic_add_mac(adapter, bcast_addr, vlan, QLCNIC_BROADCAST_MAC);
549 
550 	if (netdev->flags & IFF_PROMISC) {
551 		if (!(adapter->flags & QLCNIC_PROMISC_DISABLED))
552 			mode = VPORT_MISS_MODE_ACCEPT_ALL;
553 	} else if ((netdev->flags & IFF_ALLMULTI) ||
554 		   (netdev_mc_count(netdev) > ahw->max_mc_count)) {
555 		mode = VPORT_MISS_MODE_ACCEPT_MULTI;
556 	} else if (!netdev_mc_empty(netdev)) {
557 		qlcnic_flush_mcast_mac(adapter);
558 		netdev_for_each_mc_addr(ha, netdev)
559 			qlcnic_nic_add_mac(adapter, ha->addr, vlan,
560 					   QLCNIC_MULTICAST_MAC);
561 	}
562 
563 	/* configure unicast MAC address, if there is not sufficient space
564 	 * to store all the unicast addresses then enable promiscuous mode
565 	 */
566 	if (netdev_uc_count(netdev) > ahw->max_uc_count) {
567 		mode = VPORT_MISS_MODE_ACCEPT_ALL;
568 	} else if (!netdev_uc_empty(netdev)) {
569 		netdev_for_each_uc_addr(ha, netdev)
570 			qlcnic_nic_add_mac(adapter, ha->addr, vlan,
571 					   QLCNIC_UNICAST_MAC);
572 	}
573 
574 	if (mode == VPORT_MISS_MODE_ACCEPT_ALL &&
575 	    !adapter->fdb_mac_learn) {
576 		qlcnic_alloc_lb_filters_mem(adapter);
577 		adapter->drv_mac_learn = 1;
578 		if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
579 			adapter->rx_mac_learn = true;
580 	} else {
581 		adapter->drv_mac_learn = 0;
582 		adapter->rx_mac_learn = false;
583 	}
584 
585 	qlcnic_nic_set_promisc(adapter, mode);
586 }
587 
588 void qlcnic_set_multi(struct net_device *netdev)
589 {
590 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
591 
592 	if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
593 		return;
594 
595 	if (qlcnic_sriov_vf_check(adapter))
596 		qlcnic_sriov_vf_set_multi(netdev);
597 	else
598 		__qlcnic_set_multi(netdev, 0);
599 }
600 
601 int qlcnic_82xx_nic_set_promisc(struct qlcnic_adapter *adapter, u32 mode)
602 {
603 	struct qlcnic_nic_req req;
604 	u64 word;
605 
606 	memset(&req, 0, sizeof(struct qlcnic_nic_req));
607 
608 	req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
609 
610 	word = QLCNIC_H2C_OPCODE_SET_MAC_RECEIVE_MODE |
611 			((u64)adapter->portnum << 16);
612 	req.req_hdr = cpu_to_le64(word);
613 
614 	req.words[0] = cpu_to_le64(mode);
615 
616 	return qlcnic_send_cmd_descs(adapter,
617 				(struct cmd_desc_type0 *)&req, 1);
618 }
619 
620 void qlcnic_82xx_free_mac_list(struct qlcnic_adapter *adapter)
621 {
622 	struct list_head *head = &adapter->mac_list;
623 	struct qlcnic_mac_vlan_list *cur;
624 
625 	while (!list_empty(head)) {
626 		cur = list_entry(head->next, struct qlcnic_mac_vlan_list, list);
627 		qlcnic_sre_macaddr_change(adapter,
628 				cur->mac_addr, 0, QLCNIC_MAC_DEL);
629 		list_del(&cur->list);
630 		kfree(cur);
631 	}
632 }
633 
634 void qlcnic_prune_lb_filters(struct qlcnic_adapter *adapter)
635 {
636 	struct qlcnic_filter *tmp_fil;
637 	struct hlist_node *n;
638 	struct hlist_head *head;
639 	int i;
640 	unsigned long expires;
641 	u8 cmd;
642 
643 	for (i = 0; i < adapter->fhash.fbucket_size; i++) {
644 		head = &(adapter->fhash.fhead[i]);
645 		hlist_for_each_entry_safe(tmp_fil, n, head, fnode) {
646 			cmd =  tmp_fil->vlan_id ? QLCNIC_MAC_VLAN_DEL :
647 						  QLCNIC_MAC_DEL;
648 			expires = tmp_fil->ftime + QLCNIC_FILTER_AGE * HZ;
649 			if (time_before(expires, jiffies)) {
650 				qlcnic_sre_macaddr_change(adapter,
651 							  tmp_fil->faddr,
652 							  tmp_fil->vlan_id,
653 							  cmd);
654 				spin_lock_bh(&adapter->mac_learn_lock);
655 				adapter->fhash.fnum--;
656 				hlist_del(&tmp_fil->fnode);
657 				spin_unlock_bh(&adapter->mac_learn_lock);
658 				kfree(tmp_fil);
659 			}
660 		}
661 	}
662 	for (i = 0; i < adapter->rx_fhash.fbucket_size; i++) {
663 		head = &(adapter->rx_fhash.fhead[i]);
664 
665 		hlist_for_each_entry_safe(tmp_fil, n, head, fnode)
666 		{
667 			expires = tmp_fil->ftime + QLCNIC_FILTER_AGE * HZ;
668 			if (time_before(expires, jiffies)) {
669 				spin_lock_bh(&adapter->rx_mac_learn_lock);
670 				adapter->rx_fhash.fnum--;
671 				hlist_del(&tmp_fil->fnode);
672 				spin_unlock_bh(&adapter->rx_mac_learn_lock);
673 				kfree(tmp_fil);
674 			}
675 		}
676 	}
677 }
678 
679 void qlcnic_delete_lb_filters(struct qlcnic_adapter *adapter)
680 {
681 	struct qlcnic_filter *tmp_fil;
682 	struct hlist_node *n;
683 	struct hlist_head *head;
684 	int i;
685 	u8 cmd;
686 
687 	for (i = 0; i < adapter->fhash.fbucket_size; i++) {
688 		head = &(adapter->fhash.fhead[i]);
689 		hlist_for_each_entry_safe(tmp_fil, n, head, fnode) {
690 			cmd =  tmp_fil->vlan_id ? QLCNIC_MAC_VLAN_DEL :
691 						  QLCNIC_MAC_DEL;
692 			qlcnic_sre_macaddr_change(adapter,
693 						  tmp_fil->faddr,
694 						  tmp_fil->vlan_id,
695 						  cmd);
696 			spin_lock_bh(&adapter->mac_learn_lock);
697 			adapter->fhash.fnum--;
698 			hlist_del(&tmp_fil->fnode);
699 			spin_unlock_bh(&adapter->mac_learn_lock);
700 			kfree(tmp_fil);
701 		}
702 	}
703 }
704 
705 static int qlcnic_set_fw_loopback(struct qlcnic_adapter *adapter, u8 flag)
706 {
707 	struct qlcnic_nic_req req;
708 	int rv;
709 
710 	memset(&req, 0, sizeof(struct qlcnic_nic_req));
711 
712 	req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
713 	req.req_hdr = cpu_to_le64(QLCNIC_H2C_OPCODE_CONFIG_LOOPBACK |
714 		((u64) adapter->portnum << 16) | ((u64) 0x1 << 32));
715 
716 	req.words[0] = cpu_to_le64(flag);
717 
718 	rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
719 	if (rv != 0)
720 		dev_err(&adapter->pdev->dev, "%sting loopback mode failed\n",
721 				flag ? "Set" : "Reset");
722 	return rv;
723 }
724 
725 int qlcnic_82xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
726 {
727 	if (qlcnic_set_fw_loopback(adapter, mode))
728 		return -EIO;
729 
730 	if (qlcnic_nic_set_promisc(adapter,
731 				   VPORT_MISS_MODE_ACCEPT_ALL)) {
732 		qlcnic_set_fw_loopback(adapter, 0);
733 		return -EIO;
734 	}
735 
736 	msleep(1000);
737 	return 0;
738 }
739 
740 int qlcnic_82xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
741 {
742 	struct net_device *netdev = adapter->netdev;
743 
744 	mode = VPORT_MISS_MODE_DROP;
745 	qlcnic_set_fw_loopback(adapter, 0);
746 
747 	if (netdev->flags & IFF_PROMISC)
748 		mode = VPORT_MISS_MODE_ACCEPT_ALL;
749 	else if (netdev->flags & IFF_ALLMULTI)
750 		mode = VPORT_MISS_MODE_ACCEPT_MULTI;
751 
752 	qlcnic_nic_set_promisc(adapter, mode);
753 	msleep(1000);
754 	return 0;
755 }
756 
757 int qlcnic_82xx_read_phys_port_id(struct qlcnic_adapter *adapter)
758 {
759 	u8 mac[ETH_ALEN];
760 	int ret;
761 
762 	ret = qlcnic_get_mac_address(adapter, mac,
763 				     adapter->ahw->physical_port);
764 	if (ret)
765 		return ret;
766 
767 	memcpy(adapter->ahw->phys_port_id, mac, ETH_ALEN);
768 	adapter->flags |= QLCNIC_HAS_PHYS_PORT_ID;
769 
770 	return 0;
771 }
772 
773 int qlcnic_82xx_set_rx_coalesce(struct qlcnic_adapter *adapter)
774 {
775 	struct qlcnic_nic_req req;
776 	int rv;
777 
778 	memset(&req, 0, sizeof(struct qlcnic_nic_req));
779 
780 	req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
781 
782 	req.req_hdr = cpu_to_le64(QLCNIC_CONFIG_INTR_COALESCE |
783 		((u64) adapter->portnum << 16));
784 
785 	req.words[0] = cpu_to_le64(((u64) adapter->ahw->coal.flag) << 32);
786 	req.words[2] = cpu_to_le64(adapter->ahw->coal.rx_packets |
787 			((u64) adapter->ahw->coal.rx_time_us) << 16);
788 	req.words[5] = cpu_to_le64(adapter->ahw->coal.timer_out |
789 			((u64) adapter->ahw->coal.type) << 32 |
790 			((u64) adapter->ahw->coal.sts_ring_mask) << 40);
791 	rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
792 	if (rv != 0)
793 		dev_err(&adapter->netdev->dev,
794 			"Could not send interrupt coalescing parameters\n");
795 
796 	return rv;
797 }
798 
799 /* Send the interrupt coalescing parameter set by ethtool to the card. */
800 int qlcnic_82xx_config_intr_coalesce(struct qlcnic_adapter *adapter,
801 				     struct ethtool_coalesce *ethcoal)
802 {
803 	struct qlcnic_nic_intr_coalesce *coal = &adapter->ahw->coal;
804 	int rv;
805 
806 	coal->flag = QLCNIC_INTR_DEFAULT;
807 	coal->rx_time_us = ethcoal->rx_coalesce_usecs;
808 	coal->rx_packets = ethcoal->rx_max_coalesced_frames;
809 
810 	rv = qlcnic_82xx_set_rx_coalesce(adapter);
811 
812 	if (rv)
813 		netdev_err(adapter->netdev,
814 			   "Failed to set Rx coalescing parameters\n");
815 
816 	return rv;
817 }
818 
819 #define QLCNIC_ENABLE_IPV4_LRO		BIT_0
820 #define QLCNIC_ENABLE_IPV6_LRO		(BIT_1 | BIT_9)
821 
822 int qlcnic_82xx_config_hw_lro(struct qlcnic_adapter *adapter, int enable)
823 {
824 	struct qlcnic_nic_req req;
825 	u64 word;
826 	int rv;
827 
828 	if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
829 		return 0;
830 
831 	memset(&req, 0, sizeof(struct qlcnic_nic_req));
832 
833 	req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
834 
835 	word = QLCNIC_H2C_OPCODE_CONFIG_HW_LRO | ((u64)adapter->portnum << 16);
836 	req.req_hdr = cpu_to_le64(word);
837 
838 	word = 0;
839 	if (enable) {
840 		word = QLCNIC_ENABLE_IPV4_LRO;
841 		if (adapter->ahw->extra_capability[0] &
842 		    QLCNIC_FW_CAP2_HW_LRO_IPV6)
843 			word |= QLCNIC_ENABLE_IPV6_LRO;
844 	}
845 
846 	req.words[0] = cpu_to_le64(word);
847 
848 	rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
849 	if (rv != 0)
850 		dev_err(&adapter->netdev->dev,
851 			"Could not send configure hw lro request\n");
852 
853 	return rv;
854 }
855 
856 int qlcnic_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
857 {
858 	struct qlcnic_nic_req req;
859 	u64 word;
860 	int rv;
861 
862 	if (!!(adapter->flags & QLCNIC_BRIDGE_ENABLED) == enable)
863 		return 0;
864 
865 	memset(&req, 0, sizeof(struct qlcnic_nic_req));
866 
867 	req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
868 
869 	word = QLCNIC_H2C_OPCODE_CONFIG_BRIDGING |
870 		((u64)adapter->portnum << 16);
871 	req.req_hdr = cpu_to_le64(word);
872 
873 	req.words[0] = cpu_to_le64(enable);
874 
875 	rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
876 	if (rv != 0)
877 		dev_err(&adapter->netdev->dev,
878 			"Could not send configure bridge mode request\n");
879 
880 	adapter->flags ^= QLCNIC_BRIDGE_ENABLED;
881 
882 	return rv;
883 }
884 
885 
886 #define QLCNIC_RSS_HASHTYPE_IP_TCP	0x3
887 #define QLCNIC_ENABLE_TYPE_C_RSS	BIT_10
888 #define QLCNIC_RSS_FEATURE_FLAG	(1ULL << 63)
889 #define QLCNIC_RSS_IND_TABLE_MASK	0x7ULL
890 
891 int qlcnic_82xx_config_rss(struct qlcnic_adapter *adapter, int enable)
892 {
893 	struct qlcnic_nic_req req;
894 	u64 word;
895 	int i, rv;
896 
897 	static const u64 key[] = {
898 		0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
899 		0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
900 		0x255b0ec26d5a56daULL
901 	};
902 
903 	memset(&req, 0, sizeof(struct qlcnic_nic_req));
904 	req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
905 
906 	word = QLCNIC_H2C_OPCODE_CONFIG_RSS | ((u64)adapter->portnum << 16);
907 	req.req_hdr = cpu_to_le64(word);
908 
909 	/*
910 	 * RSS request:
911 	 * bits 3-0: hash_method
912 	 *      5-4: hash_type_ipv4
913 	 *	7-6: hash_type_ipv6
914 	 *	  8: enable
915 	 *        9: use indirection table
916 	 *       10: type-c rss
917 	 *	 11: udp rss
918 	 *    47-12: reserved
919 	 *    62-48: indirection table mask
920 	 *	 63: feature flag
921 	 */
922 	word =  ((u64)(QLCNIC_RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
923 		((u64)(QLCNIC_RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
924 		((u64)(enable & 0x1) << 8) |
925 		((u64)QLCNIC_RSS_IND_TABLE_MASK << 48) |
926 		(u64)QLCNIC_ENABLE_TYPE_C_RSS |
927 		(u64)QLCNIC_RSS_FEATURE_FLAG;
928 
929 	req.words[0] = cpu_to_le64(word);
930 	for (i = 0; i < 5; i++)
931 		req.words[i+1] = cpu_to_le64(key[i]);
932 
933 	rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
934 	if (rv != 0)
935 		dev_err(&adapter->netdev->dev, "could not configure RSS\n");
936 
937 	return rv;
938 }
939 
940 void qlcnic_82xx_config_ipaddr(struct qlcnic_adapter *adapter,
941 			       __be32 ip, int cmd)
942 {
943 	struct qlcnic_nic_req req;
944 	struct qlcnic_ipaddr *ipa;
945 	u64 word;
946 	int rv;
947 
948 	memset(&req, 0, sizeof(struct qlcnic_nic_req));
949 	req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
950 
951 	word = QLCNIC_H2C_OPCODE_CONFIG_IPADDR | ((u64)adapter->portnum << 16);
952 	req.req_hdr = cpu_to_le64(word);
953 
954 	req.words[0] = cpu_to_le64(cmd);
955 	ipa = (struct qlcnic_ipaddr *)&req.words[1];
956 	ipa->ipv4 = ip;
957 
958 	rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
959 	if (rv != 0)
960 		dev_err(&adapter->netdev->dev,
961 				"could not notify %s IP 0x%x request\n",
962 				(cmd == QLCNIC_IP_UP) ? "Add" : "Remove", ip);
963 }
964 
965 int qlcnic_82xx_linkevent_request(struct qlcnic_adapter *adapter, int enable)
966 {
967 	struct qlcnic_nic_req req;
968 	u64 word;
969 	int rv;
970 	memset(&req, 0, sizeof(struct qlcnic_nic_req));
971 	req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
972 
973 	word = QLCNIC_H2C_OPCODE_GET_LINKEVENT | ((u64)adapter->portnum << 16);
974 	req.req_hdr = cpu_to_le64(word);
975 	req.words[0] = cpu_to_le64(enable | (enable << 8));
976 	rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
977 	if (rv != 0)
978 		dev_err(&adapter->netdev->dev,
979 				"could not configure link notification\n");
980 
981 	return rv;
982 }
983 
984 static int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter)
985 {
986 	struct qlcnic_nic_req req;
987 	u64 word;
988 	int rv;
989 
990 	if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
991 		return 0;
992 
993 	memset(&req, 0, sizeof(struct qlcnic_nic_req));
994 	req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
995 
996 	word = QLCNIC_H2C_OPCODE_LRO_REQUEST |
997 		((u64)adapter->portnum << 16) |
998 		((u64)QLCNIC_LRO_REQUEST_CLEANUP << 56) ;
999 
1000 	req.req_hdr = cpu_to_le64(word);
1001 
1002 	rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
1003 	if (rv != 0)
1004 		dev_err(&adapter->netdev->dev,
1005 				 "could not cleanup lro flows\n");
1006 
1007 	return rv;
1008 }
1009 
1010 /*
1011  * qlcnic_change_mtu - Change the Maximum Transfer Unit
1012  * @returns 0 on success, negative on failure
1013  */
1014 
1015 int qlcnic_change_mtu(struct net_device *netdev, int mtu)
1016 {
1017 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
1018 	int rc = 0;
1019 
1020 	rc = qlcnic_fw_cmd_set_mtu(adapter, mtu);
1021 
1022 	if (!rc)
1023 		netdev->mtu = mtu;
1024 
1025 	return rc;
1026 }
1027 
1028 static netdev_features_t qlcnic_process_flags(struct qlcnic_adapter *adapter,
1029 					      netdev_features_t features)
1030 {
1031 	u32 offload_flags = adapter->offload_flags;
1032 
1033 	if (offload_flags & BIT_0) {
1034 		features |= NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
1035 			    NETIF_F_IPV6_CSUM;
1036 		adapter->rx_csum = 1;
1037 		if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1038 			if (!(offload_flags & BIT_1))
1039 				features &= ~NETIF_F_TSO;
1040 			else
1041 				features |= NETIF_F_TSO;
1042 
1043 			if (!(offload_flags & BIT_2))
1044 				features &= ~NETIF_F_TSO6;
1045 			else
1046 				features |= NETIF_F_TSO6;
1047 		}
1048 	} else {
1049 		features &= ~(NETIF_F_RXCSUM |
1050 			      NETIF_F_IP_CSUM |
1051 			      NETIF_F_IPV6_CSUM);
1052 
1053 		if (QLCNIC_IS_TSO_CAPABLE(adapter))
1054 			features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
1055 		adapter->rx_csum = 0;
1056 	}
1057 
1058 	return features;
1059 }
1060 
1061 netdev_features_t qlcnic_fix_features(struct net_device *netdev,
1062 	netdev_features_t features)
1063 {
1064 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
1065 	netdev_features_t changed;
1066 
1067 	if (qlcnic_82xx_check(adapter) &&
1068 	    (adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
1069 		if (adapter->flags & QLCNIC_APP_CHANGED_FLAGS) {
1070 			features = qlcnic_process_flags(adapter, features);
1071 		} else {
1072 			changed = features ^ netdev->features;
1073 			features ^= changed & (NETIF_F_RXCSUM |
1074 					       NETIF_F_IP_CSUM |
1075 					       NETIF_F_IPV6_CSUM |
1076 					       NETIF_F_TSO |
1077 					       NETIF_F_TSO6);
1078 		}
1079 	}
1080 
1081 	if (!(features & NETIF_F_RXCSUM))
1082 		features &= ~NETIF_F_LRO;
1083 
1084 	return features;
1085 }
1086 
1087 
1088 int qlcnic_set_features(struct net_device *netdev, netdev_features_t features)
1089 {
1090 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
1091 	netdev_features_t changed = netdev->features ^ features;
1092 	int hw_lro = (features & NETIF_F_LRO) ? QLCNIC_LRO_ENABLED : 0;
1093 
1094 	if (!(changed & NETIF_F_LRO))
1095 		return 0;
1096 
1097 	netdev->features ^= NETIF_F_LRO;
1098 
1099 	if (qlcnic_config_hw_lro(adapter, hw_lro))
1100 		return -EIO;
1101 
1102 	if (!hw_lro && qlcnic_82xx_check(adapter)) {
1103 		if (qlcnic_send_lro_cleanup(adapter))
1104 			return -EIO;
1105 	}
1106 
1107 	return 0;
1108 }
1109 
1110 /*
1111  * Changes the CRB window to the specified window.
1112  */
1113  /* Returns < 0 if off is not valid,
1114  *	 1 if window access is needed. 'off' is set to offset from
1115  *	   CRB space in 128M pci map
1116  *	 0 if no window access is needed. 'off' is set to 2M addr
1117  * In: 'off' is offset from base in 128M pci map
1118  */
1119 static int qlcnic_pci_get_crb_addr_2M(struct qlcnic_hardware_context *ahw,
1120 				      ulong off, void __iomem **addr)
1121 {
1122 	const struct crb_128M_2M_sub_block_map *m;
1123 
1124 	if ((off >= QLCNIC_CRB_MAX) || (off < QLCNIC_PCI_CRBSPACE))
1125 		return -EINVAL;
1126 
1127 	off -= QLCNIC_PCI_CRBSPACE;
1128 
1129 	/*
1130 	 * Try direct map
1131 	 */
1132 	m = &crb_128M_2M_map[CRB_BLK(off)].sub_block[CRB_SUBBLK(off)];
1133 
1134 	if (m->valid && (m->start_128M <= off) && (m->end_128M > off)) {
1135 		*addr = ahw->pci_base0 + m->start_2M +
1136 			(off - m->start_128M);
1137 		return 0;
1138 	}
1139 
1140 	/*
1141 	 * Not in direct map, use crb window
1142 	 */
1143 	*addr = ahw->pci_base0 + CRB_INDIRECT_2M + (off & MASK(16));
1144 	return 1;
1145 }
1146 
1147 /*
1148  * In: 'off' is offset from CRB space in 128M pci map
1149  * Out: 'off' is 2M pci map addr
1150  * side effect: lock crb window
1151  */
1152 static int
1153 qlcnic_pci_set_crbwindow_2M(struct qlcnic_adapter *adapter, ulong off)
1154 {
1155 	u32 window;
1156 	void __iomem *addr = adapter->ahw->pci_base0 + CRB_WINDOW_2M;
1157 
1158 	off -= QLCNIC_PCI_CRBSPACE;
1159 
1160 	window = CRB_HI(off);
1161 	if (window == 0) {
1162 		dev_err(&adapter->pdev->dev, "Invalid offset 0x%lx\n", off);
1163 		return -EIO;
1164 	}
1165 
1166 	writel(window, addr);
1167 	if (readl(addr) != window) {
1168 		if (printk_ratelimit())
1169 			dev_warn(&adapter->pdev->dev,
1170 				"failed to set CRB window to %d off 0x%lx\n",
1171 				window, off);
1172 		return -EIO;
1173 	}
1174 	return 0;
1175 }
1176 
1177 int qlcnic_82xx_hw_write_wx_2M(struct qlcnic_adapter *adapter, ulong off,
1178 			       u32 data)
1179 {
1180 	unsigned long flags;
1181 	int rv;
1182 	void __iomem *addr = NULL;
1183 
1184 	rv = qlcnic_pci_get_crb_addr_2M(adapter->ahw, off, &addr);
1185 
1186 	if (rv == 0) {
1187 		writel(data, addr);
1188 		return 0;
1189 	}
1190 
1191 	if (rv > 0) {
1192 		/* indirect access */
1193 		write_lock_irqsave(&adapter->ahw->crb_lock, flags);
1194 		crb_win_lock(adapter);
1195 		rv = qlcnic_pci_set_crbwindow_2M(adapter, off);
1196 		if (!rv)
1197 			writel(data, addr);
1198 		crb_win_unlock(adapter);
1199 		write_unlock_irqrestore(&adapter->ahw->crb_lock, flags);
1200 		return rv;
1201 	}
1202 
1203 	dev_err(&adapter->pdev->dev,
1204 			"%s: invalid offset: 0x%016lx\n", __func__, off);
1205 	dump_stack();
1206 	return -EIO;
1207 }
1208 
1209 int qlcnic_82xx_hw_read_wx_2M(struct qlcnic_adapter *adapter, ulong off,
1210 			      int *err)
1211 {
1212 	unsigned long flags;
1213 	int rv;
1214 	u32 data = -1;
1215 	void __iomem *addr = NULL;
1216 
1217 	rv = qlcnic_pci_get_crb_addr_2M(adapter->ahw, off, &addr);
1218 
1219 	if (rv == 0)
1220 		return readl(addr);
1221 
1222 	if (rv > 0) {
1223 		/* indirect access */
1224 		write_lock_irqsave(&adapter->ahw->crb_lock, flags);
1225 		crb_win_lock(adapter);
1226 		if (!qlcnic_pci_set_crbwindow_2M(adapter, off))
1227 			data = readl(addr);
1228 		crb_win_unlock(adapter);
1229 		write_unlock_irqrestore(&adapter->ahw->crb_lock, flags);
1230 		return data;
1231 	}
1232 
1233 	dev_err(&adapter->pdev->dev,
1234 			"%s: invalid offset: 0x%016lx\n", __func__, off);
1235 	dump_stack();
1236 	return -1;
1237 }
1238 
1239 void __iomem *qlcnic_get_ioaddr(struct qlcnic_hardware_context *ahw,
1240 				u32 offset)
1241 {
1242 	void __iomem *addr = NULL;
1243 
1244 	WARN_ON(qlcnic_pci_get_crb_addr_2M(ahw, offset, &addr));
1245 
1246 	return addr;
1247 }
1248 
1249 static int qlcnic_pci_mem_access_direct(struct qlcnic_adapter *adapter,
1250 					u32 window, u64 off, u64 *data, int op)
1251 {
1252 	void __iomem *addr;
1253 	u32 start;
1254 
1255 	mutex_lock(&adapter->ahw->mem_lock);
1256 
1257 	writel(window, adapter->ahw->ocm_win_crb);
1258 	/* read back to flush */
1259 	readl(adapter->ahw->ocm_win_crb);
1260 	start = QLCNIC_PCI_OCM0_2M + off;
1261 
1262 	addr = adapter->ahw->pci_base0 + start;
1263 
1264 	if (op == 0)	/* read */
1265 		*data = readq(addr);
1266 	else		/* write */
1267 		writeq(*data, addr);
1268 
1269 	/* Set window to 0 */
1270 	writel(0, adapter->ahw->ocm_win_crb);
1271 	readl(adapter->ahw->ocm_win_crb);
1272 
1273 	mutex_unlock(&adapter->ahw->mem_lock);
1274 	return 0;
1275 }
1276 
1277 static void
1278 qlcnic_pci_camqm_read_2M(struct qlcnic_adapter *adapter, u64 off, u64 *data)
1279 {
1280 	void __iomem *addr = adapter->ahw->pci_base0 +
1281 		QLCNIC_PCI_CAMQM_2M_BASE + (off - QLCNIC_PCI_CAMQM);
1282 
1283 	mutex_lock(&adapter->ahw->mem_lock);
1284 	*data = readq(addr);
1285 	mutex_unlock(&adapter->ahw->mem_lock);
1286 }
1287 
1288 static void
1289 qlcnic_pci_camqm_write_2M(struct qlcnic_adapter *adapter, u64 off, u64 data)
1290 {
1291 	void __iomem *addr = adapter->ahw->pci_base0 +
1292 		QLCNIC_PCI_CAMQM_2M_BASE + (off - QLCNIC_PCI_CAMQM);
1293 
1294 	mutex_lock(&adapter->ahw->mem_lock);
1295 	writeq(data, addr);
1296 	mutex_unlock(&adapter->ahw->mem_lock);
1297 }
1298 
1299 
1300 
1301 /* Set MS memory control data for different adapters */
1302 static void qlcnic_set_ms_controls(struct qlcnic_adapter *adapter, u64 off,
1303 				   struct qlcnic_ms_reg_ctrl *ms)
1304 {
1305 	ms->control = QLCNIC_MS_CTRL;
1306 	ms->low = QLCNIC_MS_ADDR_LO;
1307 	ms->hi = QLCNIC_MS_ADDR_HI;
1308 	if (off & 0xf) {
1309 		ms->wd[0] = QLCNIC_MS_WRTDATA_LO;
1310 		ms->rd[0] = QLCNIC_MS_RDDATA_LO;
1311 		ms->wd[1] = QLCNIC_MS_WRTDATA_HI;
1312 		ms->rd[1] = QLCNIC_MS_RDDATA_HI;
1313 		ms->wd[2] = QLCNIC_MS_WRTDATA_ULO;
1314 		ms->wd[3] = QLCNIC_MS_WRTDATA_UHI;
1315 		ms->rd[2] = QLCNIC_MS_RDDATA_ULO;
1316 		ms->rd[3] = QLCNIC_MS_RDDATA_UHI;
1317 	} else {
1318 		ms->wd[0] = QLCNIC_MS_WRTDATA_ULO;
1319 		ms->rd[0] = QLCNIC_MS_RDDATA_ULO;
1320 		ms->wd[1] = QLCNIC_MS_WRTDATA_UHI;
1321 		ms->rd[1] = QLCNIC_MS_RDDATA_UHI;
1322 		ms->wd[2] = QLCNIC_MS_WRTDATA_LO;
1323 		ms->wd[3] = QLCNIC_MS_WRTDATA_HI;
1324 		ms->rd[2] = QLCNIC_MS_RDDATA_LO;
1325 		ms->rd[3] = QLCNIC_MS_RDDATA_HI;
1326 	}
1327 
1328 	ms->ocm_window = OCM_WIN_P3P(off);
1329 	ms->off = GET_MEM_OFFS_2M(off);
1330 }
1331 
1332 int qlcnic_pci_mem_write_2M(struct qlcnic_adapter *adapter, u64 off, u64 data)
1333 {
1334 	int j, ret = 0;
1335 	u32 temp, off8;
1336 	struct qlcnic_ms_reg_ctrl ms;
1337 
1338 	/* Only 64-bit aligned access */
1339 	if (off & 7)
1340 		return -EIO;
1341 
1342 	memset(&ms, 0, sizeof(struct qlcnic_ms_reg_ctrl));
1343 	if (!(ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
1344 			    QLCNIC_ADDR_QDR_NET_MAX) ||
1345 	      ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET,
1346 			    QLCNIC_ADDR_DDR_NET_MAX)))
1347 		return -EIO;
1348 
1349 	qlcnic_set_ms_controls(adapter, off, &ms);
1350 
1351 	if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX))
1352 		return qlcnic_pci_mem_access_direct(adapter, ms.ocm_window,
1353 						    ms.off, &data, 1);
1354 
1355 	off8 = off & ~0xf;
1356 
1357 	mutex_lock(&adapter->ahw->mem_lock);
1358 
1359 	qlcnic_ind_wr(adapter, ms.low, off8);
1360 	qlcnic_ind_wr(adapter, ms.hi, 0);
1361 
1362 	qlcnic_ind_wr(adapter, ms.control, TA_CTL_ENABLE);
1363 	qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_START_ENABLE);
1364 
1365 	for (j = 0; j < MAX_CTL_CHECK; j++) {
1366 		temp = qlcnic_ind_rd(adapter, ms.control);
1367 		if ((temp & TA_CTL_BUSY) == 0)
1368 			break;
1369 	}
1370 
1371 	if (j >= MAX_CTL_CHECK) {
1372 		ret = -EIO;
1373 		goto done;
1374 	}
1375 
1376 	/* This is the modify part of read-modify-write */
1377 	qlcnic_ind_wr(adapter, ms.wd[0], qlcnic_ind_rd(adapter, ms.rd[0]));
1378 	qlcnic_ind_wr(adapter, ms.wd[1], qlcnic_ind_rd(adapter, ms.rd[1]));
1379 	/* This is the write part of read-modify-write */
1380 	qlcnic_ind_wr(adapter, ms.wd[2], data & 0xffffffff);
1381 	qlcnic_ind_wr(adapter, ms.wd[3], (data >> 32) & 0xffffffff);
1382 
1383 	qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_WRITE_ENABLE);
1384 	qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_WRITE_START);
1385 
1386 	for (j = 0; j < MAX_CTL_CHECK; j++) {
1387 		temp = qlcnic_ind_rd(adapter, ms.control);
1388 		if ((temp & TA_CTL_BUSY) == 0)
1389 			break;
1390 	}
1391 
1392 	if (j >= MAX_CTL_CHECK) {
1393 		if (printk_ratelimit())
1394 			dev_err(&adapter->pdev->dev,
1395 					"failed to write through agent\n");
1396 		ret = -EIO;
1397 	} else
1398 		ret = 0;
1399 
1400 done:
1401 	mutex_unlock(&adapter->ahw->mem_lock);
1402 
1403 	return ret;
1404 }
1405 
1406 int qlcnic_pci_mem_read_2M(struct qlcnic_adapter *adapter, u64 off, u64 *data)
1407 {
1408 	int j, ret;
1409 	u32 temp, off8;
1410 	u64 val;
1411 	struct qlcnic_ms_reg_ctrl ms;
1412 
1413 	/* Only 64-bit aligned access */
1414 	if (off & 7)
1415 		return -EIO;
1416 	if (!(ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
1417 			    QLCNIC_ADDR_QDR_NET_MAX) ||
1418 	      ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET,
1419 			    QLCNIC_ADDR_DDR_NET_MAX)))
1420 		return -EIO;
1421 
1422 	memset(&ms, 0, sizeof(struct qlcnic_ms_reg_ctrl));
1423 	qlcnic_set_ms_controls(adapter, off, &ms);
1424 
1425 	if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX))
1426 		return qlcnic_pci_mem_access_direct(adapter, ms.ocm_window,
1427 						    ms.off, data, 0);
1428 
1429 	mutex_lock(&adapter->ahw->mem_lock);
1430 
1431 	off8 = off & ~0xf;
1432 
1433 	qlcnic_ind_wr(adapter, ms.low, off8);
1434 	qlcnic_ind_wr(adapter, ms.hi, 0);
1435 
1436 	qlcnic_ind_wr(adapter, ms.control, TA_CTL_ENABLE);
1437 	qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_START_ENABLE);
1438 
1439 	for (j = 0; j < MAX_CTL_CHECK; j++) {
1440 		temp = qlcnic_ind_rd(adapter, ms.control);
1441 		if ((temp & TA_CTL_BUSY) == 0)
1442 			break;
1443 	}
1444 
1445 	if (j >= MAX_CTL_CHECK) {
1446 		if (printk_ratelimit())
1447 			dev_err(&adapter->pdev->dev,
1448 					"failed to read through agent\n");
1449 		ret = -EIO;
1450 	} else {
1451 
1452 		temp = qlcnic_ind_rd(adapter, ms.rd[3]);
1453 		val = (u64)temp << 32;
1454 		val |= qlcnic_ind_rd(adapter, ms.rd[2]);
1455 		*data = val;
1456 		ret = 0;
1457 	}
1458 
1459 	mutex_unlock(&adapter->ahw->mem_lock);
1460 
1461 	return ret;
1462 }
1463 
1464 int qlcnic_82xx_get_board_info(struct qlcnic_adapter *adapter)
1465 {
1466 	int offset, board_type, magic, err = 0;
1467 	struct pci_dev *pdev = adapter->pdev;
1468 
1469 	offset = QLCNIC_FW_MAGIC_OFFSET;
1470 	if (qlcnic_rom_fast_read(adapter, offset, &magic))
1471 		return -EIO;
1472 
1473 	if (magic != QLCNIC_BDINFO_MAGIC) {
1474 		dev_err(&pdev->dev, "invalid board config, magic=%08x\n",
1475 			magic);
1476 		return -EIO;
1477 	}
1478 
1479 	offset = QLCNIC_BRDTYPE_OFFSET;
1480 	if (qlcnic_rom_fast_read(adapter, offset, &board_type))
1481 		return -EIO;
1482 
1483 	adapter->ahw->board_type = board_type;
1484 
1485 	if (board_type == QLCNIC_BRDTYPE_P3P_4_GB_MM) {
1486 		u32 gpio = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_PAD_GPIO_I, &err);
1487 		if (err == -EIO)
1488 			return err;
1489 		if ((gpio & 0x8000) == 0)
1490 			board_type = QLCNIC_BRDTYPE_P3P_10G_TP;
1491 	}
1492 
1493 	switch (board_type) {
1494 	case QLCNIC_BRDTYPE_P3P_HMEZ:
1495 	case QLCNIC_BRDTYPE_P3P_XG_LOM:
1496 	case QLCNIC_BRDTYPE_P3P_10G_CX4:
1497 	case QLCNIC_BRDTYPE_P3P_10G_CX4_LP:
1498 	case QLCNIC_BRDTYPE_P3P_IMEZ:
1499 	case QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS:
1500 	case QLCNIC_BRDTYPE_P3P_10G_SFP_CT:
1501 	case QLCNIC_BRDTYPE_P3P_10G_SFP_QT:
1502 	case QLCNIC_BRDTYPE_P3P_10G_XFP:
1503 	case QLCNIC_BRDTYPE_P3P_10000_BASE_T:
1504 		adapter->ahw->port_type = QLCNIC_XGBE;
1505 		break;
1506 	case QLCNIC_BRDTYPE_P3P_REF_QG:
1507 	case QLCNIC_BRDTYPE_P3P_4_GB:
1508 	case QLCNIC_BRDTYPE_P3P_4_GB_MM:
1509 		adapter->ahw->port_type = QLCNIC_GBE;
1510 		break;
1511 	case QLCNIC_BRDTYPE_P3P_10G_TP:
1512 		adapter->ahw->port_type = (adapter->portnum < 2) ?
1513 			QLCNIC_XGBE : QLCNIC_GBE;
1514 		break;
1515 	default:
1516 		dev_err(&pdev->dev, "unknown board type %x\n", board_type);
1517 		adapter->ahw->port_type = QLCNIC_XGBE;
1518 		break;
1519 	}
1520 
1521 	return 0;
1522 }
1523 
1524 static int
1525 qlcnic_wol_supported(struct qlcnic_adapter *adapter)
1526 {
1527 	u32 wol_cfg;
1528 	int err = 0;
1529 
1530 	wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG_NV, &err);
1531 	if (wol_cfg & (1UL << adapter->portnum)) {
1532 		wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG, &err);
1533 		if (err == -EIO)
1534 			return err;
1535 		if (wol_cfg & (1 << adapter->portnum))
1536 			return 1;
1537 	}
1538 
1539 	return 0;
1540 }
1541 
1542 int qlcnic_82xx_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
1543 {
1544 	struct qlcnic_nic_req   req;
1545 	int rv;
1546 	u64 word;
1547 
1548 	memset(&req, 0, sizeof(struct qlcnic_nic_req));
1549 	req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
1550 
1551 	word = QLCNIC_H2C_OPCODE_CONFIG_LED | ((u64)adapter->portnum << 16);
1552 	req.req_hdr = cpu_to_le64(word);
1553 
1554 	req.words[0] = cpu_to_le64(((u64)rate << 32) | adapter->portnum);
1555 	req.words[1] = cpu_to_le64(state);
1556 
1557 	rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
1558 	if (rv)
1559 		dev_err(&adapter->pdev->dev, "LED configuration failed.\n");
1560 
1561 	return rv;
1562 }
1563 
1564 void qlcnic_82xx_get_beacon_state(struct qlcnic_adapter *adapter)
1565 {
1566 	struct qlcnic_hardware_context *ahw = adapter->ahw;
1567 	struct qlcnic_cmd_args cmd;
1568 	u8 beacon_state;
1569 	int err = 0;
1570 
1571 	if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_BEACON) {
1572 		err = qlcnic_alloc_mbx_args(&cmd, adapter,
1573 					    QLCNIC_CMD_GET_LED_STATUS);
1574 		if (!err) {
1575 			err = qlcnic_issue_cmd(adapter, &cmd);
1576 			if (err) {
1577 				netdev_err(adapter->netdev,
1578 					   "Failed to get current beacon state, err=%d\n",
1579 					   err);
1580 			} else {
1581 				beacon_state = cmd.rsp.arg[1];
1582 				if (beacon_state == QLCNIC_BEACON_DISABLE)
1583 					ahw->beacon_state = QLCNIC_BEACON_OFF;
1584 				else if (beacon_state == QLCNIC_BEACON_EANBLE)
1585 					ahw->beacon_state = QLCNIC_BEACON_ON;
1586 			}
1587 		}
1588 		qlcnic_free_mbx_args(&cmd);
1589 	}
1590 
1591 	return;
1592 }
1593 
1594 void qlcnic_82xx_get_func_no(struct qlcnic_adapter *adapter)
1595 {
1596 	void __iomem *msix_base_addr;
1597 	u32 func;
1598 	u32 msix_base;
1599 
1600 	pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
1601 	msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE;
1602 	msix_base = readl(msix_base_addr);
1603 	func = (func - msix_base) / QLCNIC_MSIX_TBL_PGSIZE;
1604 	adapter->ahw->pci_func = func;
1605 }
1606 
1607 void qlcnic_82xx_read_crb(struct qlcnic_adapter *adapter, char *buf,
1608 			  loff_t offset, size_t size)
1609 {
1610 	int err = 0;
1611 	u32 data;
1612 	u64 qmdata;
1613 
1614 	if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
1615 		qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
1616 		memcpy(buf, &qmdata, size);
1617 	} else {
1618 		data = QLCRD32(adapter, offset, &err);
1619 		memcpy(buf, &data, size);
1620 	}
1621 }
1622 
1623 void qlcnic_82xx_write_crb(struct qlcnic_adapter *adapter, char *buf,
1624 			   loff_t offset, size_t size)
1625 {
1626 	u32 data;
1627 	u64 qmdata;
1628 
1629 	if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
1630 		memcpy(&qmdata, buf, size);
1631 		qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
1632 	} else {
1633 		memcpy(&data, buf, size);
1634 		QLCWR32(adapter, offset, data);
1635 	}
1636 }
1637 
1638 int qlcnic_82xx_api_lock(struct qlcnic_adapter *adapter)
1639 {
1640 	return qlcnic_pcie_sem_lock(adapter, 5, 0);
1641 }
1642 
1643 void qlcnic_82xx_api_unlock(struct qlcnic_adapter *adapter)
1644 {
1645 	qlcnic_pcie_sem_unlock(adapter, 5);
1646 }
1647 
1648 int qlcnic_82xx_shutdown(struct pci_dev *pdev)
1649 {
1650 	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1651 	struct net_device *netdev = adapter->netdev;
1652 	int retval;
1653 
1654 	netif_device_detach(netdev);
1655 
1656 	qlcnic_cancel_idc_work(adapter);
1657 
1658 	if (netif_running(netdev))
1659 		qlcnic_down(adapter, netdev);
1660 
1661 	qlcnic_clr_all_drv_state(adapter, 0);
1662 
1663 	clear_bit(__QLCNIC_RESETTING, &adapter->state);
1664 
1665 	retval = pci_save_state(pdev);
1666 	if (retval)
1667 		return retval;
1668 
1669 	if (qlcnic_wol_supported(adapter)) {
1670 		pci_enable_wake(pdev, PCI_D3cold, 1);
1671 		pci_enable_wake(pdev, PCI_D3hot, 1);
1672 	}
1673 
1674 	return 0;
1675 }
1676 
1677 int qlcnic_82xx_resume(struct qlcnic_adapter *adapter)
1678 {
1679 	struct net_device *netdev = adapter->netdev;
1680 	int err;
1681 
1682 	err = qlcnic_start_firmware(adapter);
1683 	if (err) {
1684 		dev_err(&adapter->pdev->dev, "failed to start firmware\n");
1685 		return err;
1686 	}
1687 
1688 	if (netif_running(netdev)) {
1689 		err = qlcnic_up(adapter, netdev);
1690 		if (!err)
1691 			qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1692 	}
1693 
1694 	netif_device_attach(netdev);
1695 	qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1696 	return err;
1697 }
1698