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Merge tag 'regulator-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
[deliverable/linux.git] / drivers / net / ethernet / qlogic / qlcnic / qlcnic_hw.c
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 "qlcnic.h"
9 #include "qlcnic_hdr.h"
10
11 #include <linux/slab.h>
12 #include <net/ip.h>
13 #include <linux/bitops.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 static const u32 msi_tgt_status[8] = {
280 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
281 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
282 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
283 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
284 };
285
286 /* PCI Windowing for DDR regions. */
287
288 #define QLCNIC_PCIE_SEM_TIMEOUT 10000
289
290 static void qlcnic_read_window_reg(u32 addr, void __iomem *bar0, u32 *data)
291 {
292 u32 dest;
293 void __iomem *val;
294
295 dest = addr & 0xFFFF0000;
296 val = bar0 + QLCNIC_FW_DUMP_REG1;
297 writel(dest, val);
298 readl(val);
299 val = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
300 *data = readl(val);
301 }
302
303 static void qlcnic_write_window_reg(u32 addr, void __iomem *bar0, u32 data)
304 {
305 u32 dest;
306 void __iomem *val;
307
308 dest = addr & 0xFFFF0000;
309 val = bar0 + QLCNIC_FW_DUMP_REG1;
310 writel(dest, val);
311 readl(val);
312 val = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
313 writel(data, val);
314 readl(val);
315 }
316
317 int
318 qlcnic_pcie_sem_lock(struct qlcnic_adapter *adapter, int sem, u32 id_reg)
319 {
320 int timeout = 0;
321 int err = 0;
322 u32 done = 0;
323
324 while (!done) {
325 done = QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_LOCK(sem)),
326 &err);
327 if (done == 1)
328 break;
329 if (++timeout >= QLCNIC_PCIE_SEM_TIMEOUT) {
330 dev_err(&adapter->pdev->dev,
331 "Failed to acquire sem=%d lock; holdby=%d\n",
332 sem,
333 id_reg ? QLCRD32(adapter, id_reg, &err) : -1);
334 return -EIO;
335 }
336 msleep(1);
337 }
338
339 if (id_reg)
340 QLCWR32(adapter, id_reg, adapter->portnum);
341
342 return 0;
343 }
344
345 void
346 qlcnic_pcie_sem_unlock(struct qlcnic_adapter *adapter, int sem)
347 {
348 int err = 0;
349
350 QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_UNLOCK(sem)), &err);
351 }
352
353 int qlcnic_ind_rd(struct qlcnic_adapter *adapter, u32 addr)
354 {
355 int err = 0;
356 u32 data;
357
358 if (qlcnic_82xx_check(adapter))
359 qlcnic_read_window_reg(addr, adapter->ahw->pci_base0, &data);
360 else {
361 data = QLCRD32(adapter, addr, &err);
362 if (err == -EIO)
363 return err;
364 }
365 return data;
366 }
367
368 void qlcnic_ind_wr(struct qlcnic_adapter *adapter, u32 addr, u32 data)
369 {
370 if (qlcnic_82xx_check(adapter))
371 qlcnic_write_window_reg(addr, adapter->ahw->pci_base0, data);
372 else
373 qlcnic_83xx_wrt_reg_indirect(adapter, addr, data);
374 }
375
376 static int
377 qlcnic_send_cmd_descs(struct qlcnic_adapter *adapter,
378 struct cmd_desc_type0 *cmd_desc_arr, int nr_desc)
379 {
380 u32 i, producer;
381 struct qlcnic_cmd_buffer *pbuf;
382 struct cmd_desc_type0 *cmd_desc;
383 struct qlcnic_host_tx_ring *tx_ring;
384
385 i = 0;
386
387 if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
388 return -EIO;
389
390 tx_ring = &adapter->tx_ring[0];
391 __netif_tx_lock_bh(tx_ring->txq);
392
393 producer = tx_ring->producer;
394
395 if (nr_desc >= qlcnic_tx_avail(tx_ring)) {
396 netif_tx_stop_queue(tx_ring->txq);
397 smp_mb();
398 if (qlcnic_tx_avail(tx_ring) > nr_desc) {
399 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
400 netif_tx_wake_queue(tx_ring->txq);
401 } else {
402 adapter->stats.xmit_off++;
403 __netif_tx_unlock_bh(tx_ring->txq);
404 return -EBUSY;
405 }
406 }
407
408 do {
409 cmd_desc = &cmd_desc_arr[i];
410
411 pbuf = &tx_ring->cmd_buf_arr[producer];
412 pbuf->skb = NULL;
413 pbuf->frag_count = 0;
414
415 memcpy(&tx_ring->desc_head[producer],
416 cmd_desc, sizeof(struct cmd_desc_type0));
417
418 producer = get_next_index(producer, tx_ring->num_desc);
419 i++;
420
421 } while (i != nr_desc);
422
423 tx_ring->producer = producer;
424
425 qlcnic_update_cmd_producer(tx_ring);
426
427 __netif_tx_unlock_bh(tx_ring->txq);
428
429 return 0;
430 }
431
432 int qlcnic_82xx_sre_macaddr_change(struct qlcnic_adapter *adapter, u8 *addr,
433 u16 vlan_id, u8 op)
434 {
435 struct qlcnic_nic_req req;
436 struct qlcnic_mac_req *mac_req;
437 struct qlcnic_vlan_req *vlan_req;
438 u64 word;
439
440 memset(&req, 0, sizeof(struct qlcnic_nic_req));
441 req.qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
442
443 word = QLCNIC_MAC_EVENT | ((u64)adapter->portnum << 16);
444 req.req_hdr = cpu_to_le64(word);
445
446 mac_req = (struct qlcnic_mac_req *)&req.words[0];
447 mac_req->op = op;
448 memcpy(mac_req->mac_addr, addr, 6);
449
450 vlan_req = (struct qlcnic_vlan_req *)&req.words[1];
451 vlan_req->vlan_id = cpu_to_le16(vlan_id);
452
453 return qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
454 }
455
456 int qlcnic_nic_del_mac(struct qlcnic_adapter *adapter, const u8 *addr)
457 {
458 struct list_head *head;
459 struct qlcnic_mac_list_s *cur;
460 int err = -EINVAL;
461
462 /* Delete MAC from the existing list */
463 list_for_each(head, &adapter->mac_list) {
464 cur = list_entry(head, struct qlcnic_mac_list_s, list);
465 if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0) {
466 err = qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
467 0, QLCNIC_MAC_DEL);
468 if (err)
469 return err;
470 list_del(&cur->list);
471 kfree(cur);
472 return err;
473 }
474 }
475 return err;
476 }
477
478 int qlcnic_nic_add_mac(struct qlcnic_adapter *adapter, const u8 *addr, u16 vlan)
479 {
480 struct list_head *head;
481 struct qlcnic_mac_list_s *cur;
482
483 /* look up if already exists */
484 list_for_each(head, &adapter->mac_list) {
485 cur = list_entry(head, struct qlcnic_mac_list_s, list);
486 if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0)
487 return 0;
488 }
489
490 cur = kzalloc(sizeof(struct qlcnic_mac_list_s), GFP_ATOMIC);
491 if (cur == NULL)
492 return -ENOMEM;
493
494 memcpy(cur->mac_addr, addr, ETH_ALEN);
495
496 if (qlcnic_sre_macaddr_change(adapter,
497 cur->mac_addr, vlan, QLCNIC_MAC_ADD)) {
498 kfree(cur);
499 return -EIO;
500 }
501
502 list_add_tail(&cur->list, &adapter->mac_list);
503 return 0;
504 }
505
506 void __qlcnic_set_multi(struct net_device *netdev, u16 vlan)
507 {
508 struct qlcnic_adapter *adapter = netdev_priv(netdev);
509 struct qlcnic_hardware_context *ahw = adapter->ahw;
510 struct netdev_hw_addr *ha;
511 static const u8 bcast_addr[ETH_ALEN] = {
512 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
513 };
514 u32 mode = VPORT_MISS_MODE_DROP;
515
516 if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
517 return;
518
519 if (!qlcnic_sriov_vf_check(adapter))
520 qlcnic_nic_add_mac(adapter, adapter->mac_addr, vlan);
521 qlcnic_nic_add_mac(adapter, bcast_addr, vlan);
522
523 if (netdev->flags & IFF_PROMISC) {
524 if (!(adapter->flags & QLCNIC_PROMISC_DISABLED))
525 mode = VPORT_MISS_MODE_ACCEPT_ALL;
526 } else if ((netdev->flags & IFF_ALLMULTI) ||
527 (netdev_mc_count(netdev) > ahw->max_mc_count)) {
528 mode = VPORT_MISS_MODE_ACCEPT_MULTI;
529 } else if (!netdev_mc_empty(netdev) &&
530 !qlcnic_sriov_vf_check(adapter)) {
531 netdev_for_each_mc_addr(ha, netdev)
532 qlcnic_nic_add_mac(adapter, ha->addr, vlan);
533 }
534
535 if (qlcnic_sriov_vf_check(adapter))
536 qlcnic_vf_add_mc_list(netdev, vlan);
537
538 /* configure unicast MAC address, if there is not sufficient space
539 * to store all the unicast addresses then enable promiscuous mode
540 */
541 if (netdev_uc_count(netdev) > ahw->max_uc_count) {
542 mode = VPORT_MISS_MODE_ACCEPT_ALL;
543 } else if (!netdev_uc_empty(netdev)) {
544 netdev_for_each_uc_addr(ha, netdev)
545 qlcnic_nic_add_mac(adapter, ha->addr, vlan);
546 }
547
548 if (!qlcnic_sriov_vf_check(adapter)) {
549 if (mode == VPORT_MISS_MODE_ACCEPT_ALL &&
550 !adapter->fdb_mac_learn) {
551 qlcnic_alloc_lb_filters_mem(adapter);
552 adapter->drv_mac_learn = true;
553 } else {
554 adapter->drv_mac_learn = false;
555 }
556 }
557
558 qlcnic_nic_set_promisc(adapter, mode);
559 }
560
561 void qlcnic_set_multi(struct net_device *netdev)
562 {
563 struct qlcnic_adapter *adapter = netdev_priv(netdev);
564 struct netdev_hw_addr *ha;
565 struct qlcnic_mac_list_s *cur;
566
567 if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
568 return;
569 if (qlcnic_sriov_vf_check(adapter)) {
570 if (!netdev_mc_empty(netdev)) {
571 netdev_for_each_mc_addr(ha, netdev) {
572 cur = kzalloc(sizeof(struct qlcnic_mac_list_s),
573 GFP_ATOMIC);
574 if (cur == NULL)
575 break;
576 memcpy(cur->mac_addr,
577 ha->addr, ETH_ALEN);
578 list_add_tail(&cur->list, &adapter->vf_mc_list);
579 }
580 }
581 qlcnic_sriov_vf_schedule_multi(adapter->netdev);
582 return;
583 }
584 __qlcnic_set_multi(netdev, 0);
585 }
586
587 int qlcnic_82xx_nic_set_promisc(struct qlcnic_adapter *adapter, u32 mode)
588 {
589 struct qlcnic_nic_req req;
590 u64 word;
591
592 memset(&req, 0, sizeof(struct qlcnic_nic_req));
593
594 req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
595
596 word = QLCNIC_H2C_OPCODE_SET_MAC_RECEIVE_MODE |
597 ((u64)adapter->portnum << 16);
598 req.req_hdr = cpu_to_le64(word);
599
600 req.words[0] = cpu_to_le64(mode);
601
602 return qlcnic_send_cmd_descs(adapter,
603 (struct cmd_desc_type0 *)&req, 1);
604 }
605
606 void qlcnic_82xx_free_mac_list(struct qlcnic_adapter *adapter)
607 {
608 struct qlcnic_mac_list_s *cur;
609 struct list_head *head = &adapter->mac_list;
610
611 while (!list_empty(head)) {
612 cur = list_entry(head->next, struct qlcnic_mac_list_s, list);
613 qlcnic_sre_macaddr_change(adapter,
614 cur->mac_addr, 0, QLCNIC_MAC_DEL);
615 list_del(&cur->list);
616 kfree(cur);
617 }
618 }
619
620 void qlcnic_prune_lb_filters(struct qlcnic_adapter *adapter)
621 {
622 struct qlcnic_filter *tmp_fil;
623 struct hlist_node *n;
624 struct hlist_head *head;
625 int i;
626 unsigned long time;
627 u8 cmd;
628
629 for (i = 0; i < adapter->fhash.fbucket_size; i++) {
630 head = &(adapter->fhash.fhead[i]);
631 hlist_for_each_entry_safe(tmp_fil, n, head, fnode) {
632 cmd = tmp_fil->vlan_id ? QLCNIC_MAC_VLAN_DEL :
633 QLCNIC_MAC_DEL;
634 time = tmp_fil->ftime;
635 if (jiffies > (QLCNIC_FILTER_AGE * HZ + time)) {
636 qlcnic_sre_macaddr_change(adapter,
637 tmp_fil->faddr,
638 tmp_fil->vlan_id,
639 cmd);
640 spin_lock_bh(&adapter->mac_learn_lock);
641 adapter->fhash.fnum--;
642 hlist_del(&tmp_fil->fnode);
643 spin_unlock_bh(&adapter->mac_learn_lock);
644 kfree(tmp_fil);
645 }
646 }
647 }
648 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++) {
649 head = &(adapter->rx_fhash.fhead[i]);
650
651 hlist_for_each_entry_safe(tmp_fil, n, head, fnode)
652 {
653 time = tmp_fil->ftime;
654 if (jiffies > (QLCNIC_FILTER_AGE * HZ + time)) {
655 spin_lock_bh(&adapter->rx_mac_learn_lock);
656 adapter->rx_fhash.fnum--;
657 hlist_del(&tmp_fil->fnode);
658 spin_unlock_bh(&adapter->rx_mac_learn_lock);
659 kfree(tmp_fil);
660 }
661 }
662 }
663 }
664
665 void qlcnic_delete_lb_filters(struct qlcnic_adapter *adapter)
666 {
667 struct qlcnic_filter *tmp_fil;
668 struct hlist_node *n;
669 struct hlist_head *head;
670 int i;
671 u8 cmd;
672
673 for (i = 0; i < adapter->fhash.fbucket_size; i++) {
674 head = &(adapter->fhash.fhead[i]);
675 hlist_for_each_entry_safe(tmp_fil, n, head, fnode) {
676 cmd = tmp_fil->vlan_id ? QLCNIC_MAC_VLAN_DEL :
677 QLCNIC_MAC_DEL;
678 qlcnic_sre_macaddr_change(adapter,
679 tmp_fil->faddr,
680 tmp_fil->vlan_id,
681 cmd);
682 spin_lock_bh(&adapter->mac_learn_lock);
683 adapter->fhash.fnum--;
684 hlist_del(&tmp_fil->fnode);
685 spin_unlock_bh(&adapter->mac_learn_lock);
686 kfree(tmp_fil);
687 }
688 }
689 }
690
691 static int qlcnic_set_fw_loopback(struct qlcnic_adapter *adapter, u8 flag)
692 {
693 struct qlcnic_nic_req req;
694 int rv;
695
696 memset(&req, 0, sizeof(struct qlcnic_nic_req));
697
698 req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
699 req.req_hdr = cpu_to_le64(QLCNIC_H2C_OPCODE_CONFIG_LOOPBACK |
700 ((u64) adapter->portnum << 16) | ((u64) 0x1 << 32));
701
702 req.words[0] = cpu_to_le64(flag);
703
704 rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
705 if (rv != 0)
706 dev_err(&adapter->pdev->dev, "%sting loopback mode failed\n",
707 flag ? "Set" : "Reset");
708 return rv;
709 }
710
711 int qlcnic_82xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
712 {
713 if (qlcnic_set_fw_loopback(adapter, mode))
714 return -EIO;
715
716 if (qlcnic_nic_set_promisc(adapter,
717 VPORT_MISS_MODE_ACCEPT_ALL)) {
718 qlcnic_set_fw_loopback(adapter, 0);
719 return -EIO;
720 }
721
722 msleep(1000);
723 return 0;
724 }
725
726 int qlcnic_82xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
727 {
728 struct net_device *netdev = adapter->netdev;
729
730 mode = VPORT_MISS_MODE_DROP;
731 qlcnic_set_fw_loopback(adapter, 0);
732
733 if (netdev->flags & IFF_PROMISC)
734 mode = VPORT_MISS_MODE_ACCEPT_ALL;
735 else if (netdev->flags & IFF_ALLMULTI)
736 mode = VPORT_MISS_MODE_ACCEPT_MULTI;
737
738 qlcnic_nic_set_promisc(adapter, mode);
739 msleep(1000);
740 return 0;
741 }
742
743 int qlcnic_82xx_read_phys_port_id(struct qlcnic_adapter *adapter)
744 {
745 u8 mac[ETH_ALEN];
746 int ret;
747
748 ret = qlcnic_get_mac_address(adapter, mac,
749 adapter->ahw->physical_port);
750 if (ret)
751 return ret;
752
753 memcpy(adapter->ahw->phys_port_id, mac, ETH_ALEN);
754 adapter->flags |= QLCNIC_HAS_PHYS_PORT_ID;
755
756 return 0;
757 }
758
759 /*
760 * Send the interrupt coalescing parameter set by ethtool to the card.
761 */
762 void qlcnic_82xx_config_intr_coalesce(struct qlcnic_adapter *adapter)
763 {
764 struct qlcnic_nic_req req;
765 int rv;
766
767 memset(&req, 0, sizeof(struct qlcnic_nic_req));
768
769 req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
770
771 req.req_hdr = cpu_to_le64(QLCNIC_CONFIG_INTR_COALESCE |
772 ((u64) adapter->portnum << 16));
773
774 req.words[0] = cpu_to_le64(((u64) adapter->ahw->coal.flag) << 32);
775 req.words[2] = cpu_to_le64(adapter->ahw->coal.rx_packets |
776 ((u64) adapter->ahw->coal.rx_time_us) << 16);
777 req.words[5] = cpu_to_le64(adapter->ahw->coal.timer_out |
778 ((u64) adapter->ahw->coal.type) << 32 |
779 ((u64) adapter->ahw->coal.sts_ring_mask) << 40);
780 rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
781 if (rv != 0)
782 dev_err(&adapter->netdev->dev,
783 "Could not send interrupt coalescing parameters\n");
784 }
785
786 #define QLCNIC_ENABLE_IPV4_LRO 1
787 #define QLCNIC_ENABLE_IPV6_LRO 2
788
789 int qlcnic_82xx_config_hw_lro(struct qlcnic_adapter *adapter, int enable)
790 {
791 struct qlcnic_nic_req req;
792 u64 word;
793 int rv;
794
795 if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
796 return 0;
797
798 memset(&req, 0, sizeof(struct qlcnic_nic_req));
799
800 req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
801
802 word = QLCNIC_H2C_OPCODE_CONFIG_HW_LRO | ((u64)adapter->portnum << 16);
803 req.req_hdr = cpu_to_le64(word);
804
805 word = 0;
806 if (enable) {
807 word = QLCNIC_ENABLE_IPV4_LRO;
808 if (adapter->ahw->extra_capability[0] &
809 QLCNIC_FW_CAP2_HW_LRO_IPV6)
810 word |= QLCNIC_ENABLE_IPV6_LRO;
811 }
812
813 req.words[0] = cpu_to_le64(word);
814
815 rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
816 if (rv != 0)
817 dev_err(&adapter->netdev->dev,
818 "Could not send configure hw lro request\n");
819
820 return rv;
821 }
822
823 int qlcnic_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
824 {
825 struct qlcnic_nic_req req;
826 u64 word;
827 int rv;
828
829 if (!!(adapter->flags & QLCNIC_BRIDGE_ENABLED) == enable)
830 return 0;
831
832 memset(&req, 0, sizeof(struct qlcnic_nic_req));
833
834 req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
835
836 word = QLCNIC_H2C_OPCODE_CONFIG_BRIDGING |
837 ((u64)adapter->portnum << 16);
838 req.req_hdr = cpu_to_le64(word);
839
840 req.words[0] = cpu_to_le64(enable);
841
842 rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
843 if (rv != 0)
844 dev_err(&adapter->netdev->dev,
845 "Could not send configure bridge mode request\n");
846
847 adapter->flags ^= QLCNIC_BRIDGE_ENABLED;
848
849 return rv;
850 }
851
852
853 #define QLCNIC_RSS_HASHTYPE_IP_TCP 0x3
854 #define QLCNIC_ENABLE_TYPE_C_RSS BIT_10
855 #define QLCNIC_RSS_FEATURE_FLAG (1ULL << 63)
856 #define QLCNIC_RSS_IND_TABLE_MASK 0x7ULL
857
858 int qlcnic_82xx_config_rss(struct qlcnic_adapter *adapter, int enable)
859 {
860 struct qlcnic_nic_req req;
861 u64 word;
862 int i, rv;
863
864 static const u64 key[] = {
865 0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
866 0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
867 0x255b0ec26d5a56daULL
868 };
869
870 memset(&req, 0, sizeof(struct qlcnic_nic_req));
871 req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
872
873 word = QLCNIC_H2C_OPCODE_CONFIG_RSS | ((u64)adapter->portnum << 16);
874 req.req_hdr = cpu_to_le64(word);
875
876 /*
877 * RSS request:
878 * bits 3-0: hash_method
879 * 5-4: hash_type_ipv4
880 * 7-6: hash_type_ipv6
881 * 8: enable
882 * 9: use indirection table
883 * 10: type-c rss
884 * 11: udp rss
885 * 47-12: reserved
886 * 62-48: indirection table mask
887 * 63: feature flag
888 */
889 word = ((u64)(QLCNIC_RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
890 ((u64)(QLCNIC_RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
891 ((u64)(enable & 0x1) << 8) |
892 ((u64)QLCNIC_RSS_IND_TABLE_MASK << 48) |
893 (u64)QLCNIC_ENABLE_TYPE_C_RSS |
894 (u64)QLCNIC_RSS_FEATURE_FLAG;
895
896 req.words[0] = cpu_to_le64(word);
897 for (i = 0; i < 5; i++)
898 req.words[i+1] = cpu_to_le64(key[i]);
899
900 rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
901 if (rv != 0)
902 dev_err(&adapter->netdev->dev, "could not configure RSS\n");
903
904 return rv;
905 }
906
907 void qlcnic_82xx_config_ipaddr(struct qlcnic_adapter *adapter,
908 __be32 ip, int cmd)
909 {
910 struct qlcnic_nic_req req;
911 struct qlcnic_ipaddr *ipa;
912 u64 word;
913 int rv;
914
915 memset(&req, 0, sizeof(struct qlcnic_nic_req));
916 req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
917
918 word = QLCNIC_H2C_OPCODE_CONFIG_IPADDR | ((u64)adapter->portnum << 16);
919 req.req_hdr = cpu_to_le64(word);
920
921 req.words[0] = cpu_to_le64(cmd);
922 ipa = (struct qlcnic_ipaddr *)&req.words[1];
923 ipa->ipv4 = ip;
924
925 rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
926 if (rv != 0)
927 dev_err(&adapter->netdev->dev,
928 "could not notify %s IP 0x%x reuqest\n",
929 (cmd == QLCNIC_IP_UP) ? "Add" : "Remove", ip);
930 }
931
932 int qlcnic_82xx_linkevent_request(struct qlcnic_adapter *adapter, int enable)
933 {
934 struct qlcnic_nic_req req;
935 u64 word;
936 int rv;
937 memset(&req, 0, sizeof(struct qlcnic_nic_req));
938 req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
939
940 word = QLCNIC_H2C_OPCODE_GET_LINKEVENT | ((u64)adapter->portnum << 16);
941 req.req_hdr = cpu_to_le64(word);
942 req.words[0] = cpu_to_le64(enable | (enable << 8));
943 rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
944 if (rv != 0)
945 dev_err(&adapter->netdev->dev,
946 "could not configure link notification\n");
947
948 return rv;
949 }
950
951 int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter)
952 {
953 struct qlcnic_nic_req req;
954 u64 word;
955 int rv;
956
957 if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
958 return 0;
959
960 memset(&req, 0, sizeof(struct qlcnic_nic_req));
961 req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
962
963 word = QLCNIC_H2C_OPCODE_LRO_REQUEST |
964 ((u64)adapter->portnum << 16) |
965 ((u64)QLCNIC_LRO_REQUEST_CLEANUP << 56) ;
966
967 req.req_hdr = cpu_to_le64(word);
968
969 rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
970 if (rv != 0)
971 dev_err(&adapter->netdev->dev,
972 "could not cleanup lro flows\n");
973
974 return rv;
975 }
976
977 /*
978 * qlcnic_change_mtu - Change the Maximum Transfer Unit
979 * @returns 0 on success, negative on failure
980 */
981
982 int qlcnic_change_mtu(struct net_device *netdev, int mtu)
983 {
984 struct qlcnic_adapter *adapter = netdev_priv(netdev);
985 int rc = 0;
986
987 if (mtu < P3P_MIN_MTU || mtu > P3P_MAX_MTU) {
988 dev_err(&adapter->netdev->dev, "%d bytes < mtu < %d bytes"
989 " not supported\n", P3P_MAX_MTU, P3P_MIN_MTU);
990 return -EINVAL;
991 }
992
993 rc = qlcnic_fw_cmd_set_mtu(adapter, mtu);
994
995 if (!rc)
996 netdev->mtu = mtu;
997
998 return rc;
999 }
1000
1001 static netdev_features_t qlcnic_process_flags(struct qlcnic_adapter *adapter,
1002 netdev_features_t features)
1003 {
1004 u32 offload_flags = adapter->offload_flags;
1005
1006 if (offload_flags & BIT_0) {
1007 features |= NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
1008 NETIF_F_IPV6_CSUM;
1009 adapter->rx_csum = 1;
1010 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1011 if (!(offload_flags & BIT_1))
1012 features &= ~NETIF_F_TSO;
1013 else
1014 features |= NETIF_F_TSO;
1015
1016 if (!(offload_flags & BIT_2))
1017 features &= ~NETIF_F_TSO6;
1018 else
1019 features |= NETIF_F_TSO6;
1020 }
1021 } else {
1022 features &= ~(NETIF_F_RXCSUM |
1023 NETIF_F_IP_CSUM |
1024 NETIF_F_IPV6_CSUM);
1025
1026 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1027 features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
1028 adapter->rx_csum = 0;
1029 }
1030
1031 return features;
1032 }
1033
1034 netdev_features_t qlcnic_fix_features(struct net_device *netdev,
1035 netdev_features_t features)
1036 {
1037 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1038 netdev_features_t changed;
1039
1040 if (qlcnic_82xx_check(adapter) &&
1041 (adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
1042 if (adapter->flags & QLCNIC_APP_CHANGED_FLAGS) {
1043 features = qlcnic_process_flags(adapter, features);
1044 } else {
1045 changed = features ^ netdev->features;
1046 features ^= changed & (NETIF_F_RXCSUM |
1047 NETIF_F_IP_CSUM |
1048 NETIF_F_IPV6_CSUM |
1049 NETIF_F_TSO |
1050 NETIF_F_TSO6);
1051 }
1052 }
1053
1054 if (!(features & NETIF_F_RXCSUM))
1055 features &= ~NETIF_F_LRO;
1056
1057 return features;
1058 }
1059
1060
1061 int qlcnic_set_features(struct net_device *netdev, netdev_features_t features)
1062 {
1063 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1064 netdev_features_t changed = netdev->features ^ features;
1065 int hw_lro = (features & NETIF_F_LRO) ? QLCNIC_LRO_ENABLED : 0;
1066
1067 if (!(changed & NETIF_F_LRO))
1068 return 0;
1069
1070 netdev->features ^= NETIF_F_LRO;
1071
1072 if (qlcnic_config_hw_lro(adapter, hw_lro))
1073 return -EIO;
1074
1075 if (!hw_lro && qlcnic_82xx_check(adapter)) {
1076 if (qlcnic_send_lro_cleanup(adapter))
1077 return -EIO;
1078 }
1079
1080 return 0;
1081 }
1082
1083 /*
1084 * Changes the CRB window to the specified window.
1085 */
1086 /* Returns < 0 if off is not valid,
1087 * 1 if window access is needed. 'off' is set to offset from
1088 * CRB space in 128M pci map
1089 * 0 if no window access is needed. 'off' is set to 2M addr
1090 * In: 'off' is offset from base in 128M pci map
1091 */
1092 static int qlcnic_pci_get_crb_addr_2M(struct qlcnic_hardware_context *ahw,
1093 ulong off, void __iomem **addr)
1094 {
1095 const struct crb_128M_2M_sub_block_map *m;
1096
1097 if ((off >= QLCNIC_CRB_MAX) || (off < QLCNIC_PCI_CRBSPACE))
1098 return -EINVAL;
1099
1100 off -= QLCNIC_PCI_CRBSPACE;
1101
1102 /*
1103 * Try direct map
1104 */
1105 m = &crb_128M_2M_map[CRB_BLK(off)].sub_block[CRB_SUBBLK(off)];
1106
1107 if (m->valid && (m->start_128M <= off) && (m->end_128M > off)) {
1108 *addr = ahw->pci_base0 + m->start_2M +
1109 (off - m->start_128M);
1110 return 0;
1111 }
1112
1113 /*
1114 * Not in direct map, use crb window
1115 */
1116 *addr = ahw->pci_base0 + CRB_INDIRECT_2M + (off & MASK(16));
1117 return 1;
1118 }
1119
1120 /*
1121 * In: 'off' is offset from CRB space in 128M pci map
1122 * Out: 'off' is 2M pci map addr
1123 * side effect: lock crb window
1124 */
1125 static int
1126 qlcnic_pci_set_crbwindow_2M(struct qlcnic_adapter *adapter, ulong off)
1127 {
1128 u32 window;
1129 void __iomem *addr = adapter->ahw->pci_base0 + CRB_WINDOW_2M;
1130
1131 off -= QLCNIC_PCI_CRBSPACE;
1132
1133 window = CRB_HI(off);
1134 if (window == 0) {
1135 dev_err(&adapter->pdev->dev, "Invalid offset 0x%lx\n", off);
1136 return -EIO;
1137 }
1138
1139 writel(window, addr);
1140 if (readl(addr) != window) {
1141 if (printk_ratelimit())
1142 dev_warn(&adapter->pdev->dev,
1143 "failed to set CRB window to %d off 0x%lx\n",
1144 window, off);
1145 return -EIO;
1146 }
1147 return 0;
1148 }
1149
1150 int qlcnic_82xx_hw_write_wx_2M(struct qlcnic_adapter *adapter, ulong off,
1151 u32 data)
1152 {
1153 unsigned long flags;
1154 int rv;
1155 void __iomem *addr = NULL;
1156
1157 rv = qlcnic_pci_get_crb_addr_2M(adapter->ahw, off, &addr);
1158
1159 if (rv == 0) {
1160 writel(data, addr);
1161 return 0;
1162 }
1163
1164 if (rv > 0) {
1165 /* indirect access */
1166 write_lock_irqsave(&adapter->ahw->crb_lock, flags);
1167 crb_win_lock(adapter);
1168 rv = qlcnic_pci_set_crbwindow_2M(adapter, off);
1169 if (!rv)
1170 writel(data, addr);
1171 crb_win_unlock(adapter);
1172 write_unlock_irqrestore(&adapter->ahw->crb_lock, flags);
1173 return rv;
1174 }
1175
1176 dev_err(&adapter->pdev->dev,
1177 "%s: invalid offset: 0x%016lx\n", __func__, off);
1178 dump_stack();
1179 return -EIO;
1180 }
1181
1182 int qlcnic_82xx_hw_read_wx_2M(struct qlcnic_adapter *adapter, ulong off,
1183 int *err)
1184 {
1185 unsigned long flags;
1186 int rv;
1187 u32 data = -1;
1188 void __iomem *addr = NULL;
1189
1190 rv = qlcnic_pci_get_crb_addr_2M(adapter->ahw, off, &addr);
1191
1192 if (rv == 0)
1193 return readl(addr);
1194
1195 if (rv > 0) {
1196 /* indirect access */
1197 write_lock_irqsave(&adapter->ahw->crb_lock, flags);
1198 crb_win_lock(adapter);
1199 if (!qlcnic_pci_set_crbwindow_2M(adapter, off))
1200 data = readl(addr);
1201 crb_win_unlock(adapter);
1202 write_unlock_irqrestore(&adapter->ahw->crb_lock, flags);
1203 return data;
1204 }
1205
1206 dev_err(&adapter->pdev->dev,
1207 "%s: invalid offset: 0x%016lx\n", __func__, off);
1208 dump_stack();
1209 return -1;
1210 }
1211
1212 void __iomem *qlcnic_get_ioaddr(struct qlcnic_hardware_context *ahw,
1213 u32 offset)
1214 {
1215 void __iomem *addr = NULL;
1216
1217 WARN_ON(qlcnic_pci_get_crb_addr_2M(ahw, offset, &addr));
1218
1219 return addr;
1220 }
1221
1222 static int qlcnic_pci_mem_access_direct(struct qlcnic_adapter *adapter,
1223 u32 window, u64 off, u64 *data, int op)
1224 {
1225 void __iomem *addr;
1226 u32 start;
1227
1228 mutex_lock(&adapter->ahw->mem_lock);
1229
1230 writel(window, adapter->ahw->ocm_win_crb);
1231 /* read back to flush */
1232 readl(adapter->ahw->ocm_win_crb);
1233 start = QLCNIC_PCI_OCM0_2M + off;
1234
1235 addr = adapter->ahw->pci_base0 + start;
1236
1237 if (op == 0) /* read */
1238 *data = readq(addr);
1239 else /* write */
1240 writeq(*data, addr);
1241
1242 /* Set window to 0 */
1243 writel(0, adapter->ahw->ocm_win_crb);
1244 readl(adapter->ahw->ocm_win_crb);
1245
1246 mutex_unlock(&adapter->ahw->mem_lock);
1247 return 0;
1248 }
1249
1250 void
1251 qlcnic_pci_camqm_read_2M(struct qlcnic_adapter *adapter, u64 off, u64 *data)
1252 {
1253 void __iomem *addr = adapter->ahw->pci_base0 +
1254 QLCNIC_PCI_CAMQM_2M_BASE + (off - QLCNIC_PCI_CAMQM);
1255
1256 mutex_lock(&adapter->ahw->mem_lock);
1257 *data = readq(addr);
1258 mutex_unlock(&adapter->ahw->mem_lock);
1259 }
1260
1261 void
1262 qlcnic_pci_camqm_write_2M(struct qlcnic_adapter *adapter, u64 off, u64 data)
1263 {
1264 void __iomem *addr = adapter->ahw->pci_base0 +
1265 QLCNIC_PCI_CAMQM_2M_BASE + (off - QLCNIC_PCI_CAMQM);
1266
1267 mutex_lock(&adapter->ahw->mem_lock);
1268 writeq(data, addr);
1269 mutex_unlock(&adapter->ahw->mem_lock);
1270 }
1271
1272
1273
1274 /* Set MS memory control data for different adapters */
1275 static void qlcnic_set_ms_controls(struct qlcnic_adapter *adapter, u64 off,
1276 struct qlcnic_ms_reg_ctrl *ms)
1277 {
1278 ms->control = QLCNIC_MS_CTRL;
1279 ms->low = QLCNIC_MS_ADDR_LO;
1280 ms->hi = QLCNIC_MS_ADDR_HI;
1281 if (off & 0xf) {
1282 ms->wd[0] = QLCNIC_MS_WRTDATA_LO;
1283 ms->rd[0] = QLCNIC_MS_RDDATA_LO;
1284 ms->wd[1] = QLCNIC_MS_WRTDATA_HI;
1285 ms->rd[1] = QLCNIC_MS_RDDATA_HI;
1286 ms->wd[2] = QLCNIC_MS_WRTDATA_ULO;
1287 ms->wd[3] = QLCNIC_MS_WRTDATA_UHI;
1288 ms->rd[2] = QLCNIC_MS_RDDATA_ULO;
1289 ms->rd[3] = QLCNIC_MS_RDDATA_UHI;
1290 } else {
1291 ms->wd[0] = QLCNIC_MS_WRTDATA_ULO;
1292 ms->rd[0] = QLCNIC_MS_RDDATA_ULO;
1293 ms->wd[1] = QLCNIC_MS_WRTDATA_UHI;
1294 ms->rd[1] = QLCNIC_MS_RDDATA_UHI;
1295 ms->wd[2] = QLCNIC_MS_WRTDATA_LO;
1296 ms->wd[3] = QLCNIC_MS_WRTDATA_HI;
1297 ms->rd[2] = QLCNIC_MS_RDDATA_LO;
1298 ms->rd[3] = QLCNIC_MS_RDDATA_HI;
1299 }
1300
1301 ms->ocm_window = OCM_WIN_P3P(off);
1302 ms->off = GET_MEM_OFFS_2M(off);
1303 }
1304
1305 int qlcnic_pci_mem_write_2M(struct qlcnic_adapter *adapter, u64 off, u64 data)
1306 {
1307 int j, ret = 0;
1308 u32 temp, off8;
1309 struct qlcnic_ms_reg_ctrl ms;
1310
1311 /* Only 64-bit aligned access */
1312 if (off & 7)
1313 return -EIO;
1314
1315 memset(&ms, 0, sizeof(struct qlcnic_ms_reg_ctrl));
1316 if (!(ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
1317 QLCNIC_ADDR_QDR_NET_MAX) ||
1318 ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET,
1319 QLCNIC_ADDR_DDR_NET_MAX)))
1320 return -EIO;
1321
1322 qlcnic_set_ms_controls(adapter, off, &ms);
1323
1324 if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX))
1325 return qlcnic_pci_mem_access_direct(adapter, ms.ocm_window,
1326 ms.off, &data, 1);
1327
1328 off8 = off & ~0xf;
1329
1330 mutex_lock(&adapter->ahw->mem_lock);
1331
1332 qlcnic_ind_wr(adapter, ms.low, off8);
1333 qlcnic_ind_wr(adapter, ms.hi, 0);
1334
1335 qlcnic_ind_wr(adapter, ms.control, TA_CTL_ENABLE);
1336 qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_START_ENABLE);
1337
1338 for (j = 0; j < MAX_CTL_CHECK; j++) {
1339 temp = qlcnic_ind_rd(adapter, ms.control);
1340 if ((temp & TA_CTL_BUSY) == 0)
1341 break;
1342 }
1343
1344 if (j >= MAX_CTL_CHECK) {
1345 ret = -EIO;
1346 goto done;
1347 }
1348
1349 /* This is the modify part of read-modify-write */
1350 qlcnic_ind_wr(adapter, ms.wd[0], qlcnic_ind_rd(adapter, ms.rd[0]));
1351 qlcnic_ind_wr(adapter, ms.wd[1], qlcnic_ind_rd(adapter, ms.rd[1]));
1352 /* This is the write part of read-modify-write */
1353 qlcnic_ind_wr(adapter, ms.wd[2], data & 0xffffffff);
1354 qlcnic_ind_wr(adapter, ms.wd[3], (data >> 32) & 0xffffffff);
1355
1356 qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_WRITE_ENABLE);
1357 qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_WRITE_START);
1358
1359 for (j = 0; j < MAX_CTL_CHECK; j++) {
1360 temp = qlcnic_ind_rd(adapter, ms.control);
1361 if ((temp & TA_CTL_BUSY) == 0)
1362 break;
1363 }
1364
1365 if (j >= MAX_CTL_CHECK) {
1366 if (printk_ratelimit())
1367 dev_err(&adapter->pdev->dev,
1368 "failed to write through agent\n");
1369 ret = -EIO;
1370 } else
1371 ret = 0;
1372
1373 done:
1374 mutex_unlock(&adapter->ahw->mem_lock);
1375
1376 return ret;
1377 }
1378
1379 int qlcnic_pci_mem_read_2M(struct qlcnic_adapter *adapter, u64 off, u64 *data)
1380 {
1381 int j, ret;
1382 u32 temp, off8;
1383 u64 val;
1384 struct qlcnic_ms_reg_ctrl ms;
1385
1386 /* Only 64-bit aligned access */
1387 if (off & 7)
1388 return -EIO;
1389 if (!(ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
1390 QLCNIC_ADDR_QDR_NET_MAX) ||
1391 ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET,
1392 QLCNIC_ADDR_DDR_NET_MAX)))
1393 return -EIO;
1394
1395 memset(&ms, 0, sizeof(struct qlcnic_ms_reg_ctrl));
1396 qlcnic_set_ms_controls(adapter, off, &ms);
1397
1398 if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX))
1399 return qlcnic_pci_mem_access_direct(adapter, ms.ocm_window,
1400 ms.off, data, 0);
1401
1402 mutex_lock(&adapter->ahw->mem_lock);
1403
1404 off8 = off & ~0xf;
1405
1406 qlcnic_ind_wr(adapter, ms.low, off8);
1407 qlcnic_ind_wr(adapter, ms.hi, 0);
1408
1409 qlcnic_ind_wr(adapter, ms.control, TA_CTL_ENABLE);
1410 qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_START_ENABLE);
1411
1412 for (j = 0; j < MAX_CTL_CHECK; j++) {
1413 temp = qlcnic_ind_rd(adapter, ms.control);
1414 if ((temp & TA_CTL_BUSY) == 0)
1415 break;
1416 }
1417
1418 if (j >= MAX_CTL_CHECK) {
1419 if (printk_ratelimit())
1420 dev_err(&adapter->pdev->dev,
1421 "failed to read through agent\n");
1422 ret = -EIO;
1423 } else {
1424
1425 temp = qlcnic_ind_rd(adapter, ms.rd[3]);
1426 val = (u64)temp << 32;
1427 val |= qlcnic_ind_rd(adapter, ms.rd[2]);
1428 *data = val;
1429 ret = 0;
1430 }
1431
1432 mutex_unlock(&adapter->ahw->mem_lock);
1433
1434 return ret;
1435 }
1436
1437 int qlcnic_82xx_get_board_info(struct qlcnic_adapter *adapter)
1438 {
1439 int offset, board_type, magic, err = 0;
1440 struct pci_dev *pdev = adapter->pdev;
1441
1442 offset = QLCNIC_FW_MAGIC_OFFSET;
1443 if (qlcnic_rom_fast_read(adapter, offset, &magic))
1444 return -EIO;
1445
1446 if (magic != QLCNIC_BDINFO_MAGIC) {
1447 dev_err(&pdev->dev, "invalid board config, magic=%08x\n",
1448 magic);
1449 return -EIO;
1450 }
1451
1452 offset = QLCNIC_BRDTYPE_OFFSET;
1453 if (qlcnic_rom_fast_read(adapter, offset, &board_type))
1454 return -EIO;
1455
1456 adapter->ahw->board_type = board_type;
1457
1458 if (board_type == QLCNIC_BRDTYPE_P3P_4_GB_MM) {
1459 u32 gpio = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_PAD_GPIO_I, &err);
1460 if (err == -EIO)
1461 return err;
1462 if ((gpio & 0x8000) == 0)
1463 board_type = QLCNIC_BRDTYPE_P3P_10G_TP;
1464 }
1465
1466 switch (board_type) {
1467 case QLCNIC_BRDTYPE_P3P_HMEZ:
1468 case QLCNIC_BRDTYPE_P3P_XG_LOM:
1469 case QLCNIC_BRDTYPE_P3P_10G_CX4:
1470 case QLCNIC_BRDTYPE_P3P_10G_CX4_LP:
1471 case QLCNIC_BRDTYPE_P3P_IMEZ:
1472 case QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS:
1473 case QLCNIC_BRDTYPE_P3P_10G_SFP_CT:
1474 case QLCNIC_BRDTYPE_P3P_10G_SFP_QT:
1475 case QLCNIC_BRDTYPE_P3P_10G_XFP:
1476 case QLCNIC_BRDTYPE_P3P_10000_BASE_T:
1477 adapter->ahw->port_type = QLCNIC_XGBE;
1478 break;
1479 case QLCNIC_BRDTYPE_P3P_REF_QG:
1480 case QLCNIC_BRDTYPE_P3P_4_GB:
1481 case QLCNIC_BRDTYPE_P3P_4_GB_MM:
1482 adapter->ahw->port_type = QLCNIC_GBE;
1483 break;
1484 case QLCNIC_BRDTYPE_P3P_10G_TP:
1485 adapter->ahw->port_type = (adapter->portnum < 2) ?
1486 QLCNIC_XGBE : QLCNIC_GBE;
1487 break;
1488 default:
1489 dev_err(&pdev->dev, "unknown board type %x\n", board_type);
1490 adapter->ahw->port_type = QLCNIC_XGBE;
1491 break;
1492 }
1493
1494 return 0;
1495 }
1496
1497 int
1498 qlcnic_wol_supported(struct qlcnic_adapter *adapter)
1499 {
1500 u32 wol_cfg;
1501 int err = 0;
1502
1503 wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG_NV, &err);
1504 if (wol_cfg & (1UL << adapter->portnum)) {
1505 wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG, &err);
1506 if (err == -EIO)
1507 return err;
1508 if (wol_cfg & (1 << adapter->portnum))
1509 return 1;
1510 }
1511
1512 return 0;
1513 }
1514
1515 int qlcnic_82xx_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
1516 {
1517 struct qlcnic_nic_req req;
1518 int rv;
1519 u64 word;
1520
1521 memset(&req, 0, sizeof(struct qlcnic_nic_req));
1522 req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
1523
1524 word = QLCNIC_H2C_OPCODE_CONFIG_LED | ((u64)adapter->portnum << 16);
1525 req.req_hdr = cpu_to_le64(word);
1526
1527 req.words[0] = cpu_to_le64(((u64)rate << 32) | adapter->portnum);
1528 req.words[1] = cpu_to_le64(state);
1529
1530 rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
1531 if (rv)
1532 dev_err(&adapter->pdev->dev, "LED configuration failed.\n");
1533
1534 return rv;
1535 }
1536
1537 int qlcnic_get_beacon_state(struct qlcnic_adapter *adapter, u8 *h_state)
1538 {
1539 struct qlcnic_cmd_args cmd;
1540 int err;
1541
1542 err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LED_STATUS);
1543 if (!err) {
1544 err = qlcnic_issue_cmd(adapter, &cmd);
1545 if (!err)
1546 *h_state = cmd.rsp.arg[1];
1547 }
1548 qlcnic_free_mbx_args(&cmd);
1549 return err;
1550 }
1551
1552 void qlcnic_82xx_get_func_no(struct qlcnic_adapter *adapter)
1553 {
1554 void __iomem *msix_base_addr;
1555 u32 func;
1556 u32 msix_base;
1557
1558 pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
1559 msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE;
1560 msix_base = readl(msix_base_addr);
1561 func = (func - msix_base) / QLCNIC_MSIX_TBL_PGSIZE;
1562 adapter->ahw->pci_func = func;
1563 }
1564
1565 void qlcnic_82xx_read_crb(struct qlcnic_adapter *adapter, char *buf,
1566 loff_t offset, size_t size)
1567 {
1568 int err = 0;
1569 u32 data;
1570 u64 qmdata;
1571
1572 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
1573 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
1574 memcpy(buf, &qmdata, size);
1575 } else {
1576 data = QLCRD32(adapter, offset, &err);
1577 memcpy(buf, &data, size);
1578 }
1579 }
1580
1581 void qlcnic_82xx_write_crb(struct qlcnic_adapter *adapter, char *buf,
1582 loff_t offset, size_t size)
1583 {
1584 u32 data;
1585 u64 qmdata;
1586
1587 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
1588 memcpy(&qmdata, buf, size);
1589 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
1590 } else {
1591 memcpy(&data, buf, size);
1592 QLCWR32(adapter, offset, data);
1593 }
1594 }
1595
1596 int qlcnic_82xx_api_lock(struct qlcnic_adapter *adapter)
1597 {
1598 return qlcnic_pcie_sem_lock(adapter, 5, 0);
1599 }
1600
1601 void qlcnic_82xx_api_unlock(struct qlcnic_adapter *adapter)
1602 {
1603 qlcnic_pcie_sem_unlock(adapter, 5);
1604 }
1605
1606 int qlcnic_82xx_shutdown(struct pci_dev *pdev)
1607 {
1608 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1609 struct net_device *netdev = adapter->netdev;
1610 int retval;
1611
1612 netif_device_detach(netdev);
1613
1614 qlcnic_cancel_idc_work(adapter);
1615
1616 if (netif_running(netdev))
1617 qlcnic_down(adapter, netdev);
1618
1619 qlcnic_clr_all_drv_state(adapter, 0);
1620
1621 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1622
1623 retval = pci_save_state(pdev);
1624 if (retval)
1625 return retval;
1626
1627 if (qlcnic_wol_supported(adapter)) {
1628 pci_enable_wake(pdev, PCI_D3cold, 1);
1629 pci_enable_wake(pdev, PCI_D3hot, 1);
1630 }
1631
1632 return 0;
1633 }
1634
1635 int qlcnic_82xx_resume(struct qlcnic_adapter *adapter)
1636 {
1637 struct net_device *netdev = adapter->netdev;
1638 int err;
1639
1640 err = qlcnic_start_firmware(adapter);
1641 if (err) {
1642 dev_err(&adapter->pdev->dev, "failed to start firmware\n");
1643 return err;
1644 }
1645
1646 if (netif_running(netdev)) {
1647 err = qlcnic_up(adapter, netdev);
1648 if (!err)
1649 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1650 }
1651
1652 netif_device_attach(netdev);
1653 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1654 return err;
1655 }
Linux kernel - Deliverables
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