1 // SPDX-License-Identifier: GPL-2.0
2 /* Marvell RVU Admin Function driver
3 *
4 * Copyright (C) 2018 Marvell.
5 *
6 */
7
8 #include <linux/module.h>
9 #include <linux/interrupt.h>
10 #include <linux/delay.h>
11 #include <linux/irq.h>
12 #include <linux/pci.h>
13 #include <linux/sysfs.h>
14
15 #include "cgx.h"
16 #include "rvu.h"
17 #include "rvu_reg.h"
18 #include "ptp.h"
19 #include "mcs.h"
20
21 #include "rvu_trace.h"
22 #include "rvu_npc_hash.h"
23
24 #define DRV_NAME "rvu_af"
25 #define DRV_STRING "Marvell OcteonTX2 RVU Admin Function Driver"
26
27 static void rvu_set_msix_offset(struct rvu *rvu, struct rvu_pfvf *pfvf,
28 struct rvu_block *block, int lf);
29 static void rvu_clear_msix_offset(struct rvu *rvu, struct rvu_pfvf *pfvf,
30 struct rvu_block *block, int lf);
31 static void __rvu_flr_handler(struct rvu *rvu, u16 pcifunc);
32
33 static int rvu_mbox_init(struct rvu *rvu, struct mbox_wq_info *mw,
34 int type, int num,
35 void (mbox_handler)(struct work_struct *),
36 void (mbox_up_handler)(struct work_struct *));
37 enum {
38 TYPE_AFVF,
39 TYPE_AFPF,
40 };
41
42 /* Supported devices */
43 static const struct pci_device_id rvu_id_table[] = {
44 { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_AF) },
45 { 0, } /* end of table */
46 };
47
48 MODULE_AUTHOR("Sunil Goutham <sgoutham@marvell.com>");
49 MODULE_DESCRIPTION(DRV_STRING);
50 MODULE_LICENSE("GPL v2");
51 MODULE_DEVICE_TABLE(pci, rvu_id_table);
52
53 static char *mkex_profile; /* MKEX profile name */
54 module_param(mkex_profile, charp, 0000);
55 MODULE_PARM_DESC(mkex_profile, "MKEX profile name string");
56
57 static char *kpu_profile; /* KPU profile name */
58 module_param(kpu_profile, charp, 0000);
59 MODULE_PARM_DESC(kpu_profile, "KPU profile name string");
60
rvu_setup_hw_capabilities(struct rvu * rvu)61 static void rvu_setup_hw_capabilities(struct rvu *rvu)
62 {
63 struct rvu_hwinfo *hw = rvu->hw;
64
65 hw->cap.nix_tx_aggr_lvl = NIX_TXSCH_LVL_TL1;
66 hw->cap.nix_fixed_txschq_mapping = false;
67 hw->cap.nix_shaping = true;
68 hw->cap.nix_tx_link_bp = true;
69 hw->cap.nix_rx_multicast = true;
70 hw->cap.nix_shaper_toggle_wait = false;
71 hw->cap.npc_hash_extract = false;
72 hw->cap.npc_exact_match_enabled = false;
73 hw->rvu = rvu;
74
75 if (is_rvu_pre_96xx_C0(rvu)) {
76 hw->cap.nix_fixed_txschq_mapping = true;
77 hw->cap.nix_txsch_per_cgx_lmac = 4;
78 hw->cap.nix_txsch_per_lbk_lmac = 132;
79 hw->cap.nix_txsch_per_sdp_lmac = 76;
80 hw->cap.nix_shaping = false;
81 hw->cap.nix_tx_link_bp = false;
82 if (is_rvu_96xx_A0(rvu) || is_rvu_95xx_A0(rvu))
83 hw->cap.nix_rx_multicast = false;
84 }
85 if (!is_rvu_pre_96xx_C0(rvu))
86 hw->cap.nix_shaper_toggle_wait = true;
87
88 if (!is_rvu_otx2(rvu))
89 hw->cap.per_pf_mbox_regs = true;
90
91 if (is_rvu_npc_hash_extract_en(rvu))
92 hw->cap.npc_hash_extract = true;
93 }
94
95 /* Poll a RVU block's register 'offset', for a 'zero'
96 * or 'nonzero' at bits specified by 'mask'
97 */
rvu_poll_reg(struct rvu * rvu,u64 block,u64 offset,u64 mask,bool zero)98 int rvu_poll_reg(struct rvu *rvu, u64 block, u64 offset, u64 mask, bool zero)
99 {
100 unsigned long timeout = jiffies + usecs_to_jiffies(20000);
101 bool twice = false;
102 void __iomem *reg;
103 u64 reg_val;
104
105 reg = rvu->afreg_base + ((block << 28) | offset);
106 again:
107 reg_val = readq(reg);
108 if (zero && !(reg_val & mask))
109 return 0;
110 if (!zero && (reg_val & mask))
111 return 0;
112 if (time_before(jiffies, timeout)) {
113 usleep_range(1, 5);
114 goto again;
115 }
116 /* In scenarios where CPU is scheduled out before checking
117 * 'time_before' (above) and gets scheduled in such that
118 * jiffies are beyond timeout value, then check again if HW is
119 * done with the operation in the meantime.
120 */
121 if (!twice) {
122 twice = true;
123 goto again;
124 }
125 return -EBUSY;
126 }
127
rvu_alloc_rsrc(struct rsrc_bmap * rsrc)128 int rvu_alloc_rsrc(struct rsrc_bmap *rsrc)
129 {
130 int id;
131
132 if (!rsrc->bmap)
133 return -EINVAL;
134
135 id = find_first_zero_bit(rsrc->bmap, rsrc->max);
136 if (id >= rsrc->max)
137 return -ENOSPC;
138
139 __set_bit(id, rsrc->bmap);
140
141 return id;
142 }
143
rvu_alloc_rsrc_contig(struct rsrc_bmap * rsrc,int nrsrc)144 int rvu_alloc_rsrc_contig(struct rsrc_bmap *rsrc, int nrsrc)
145 {
146 int start;
147
148 if (!rsrc->bmap)
149 return -EINVAL;
150
151 start = bitmap_find_next_zero_area(rsrc->bmap, rsrc->max, 0, nrsrc, 0);
152 if (start >= rsrc->max)
153 return -ENOSPC;
154
155 bitmap_set(rsrc->bmap, start, nrsrc);
156 return start;
157 }
158
rvu_free_rsrc_contig(struct rsrc_bmap * rsrc,int nrsrc,int start)159 static void rvu_free_rsrc_contig(struct rsrc_bmap *rsrc, int nrsrc, int start)
160 {
161 if (!rsrc->bmap)
162 return;
163 if (start >= rsrc->max)
164 return;
165
166 bitmap_clear(rsrc->bmap, start, nrsrc);
167 }
168
rvu_rsrc_check_contig(struct rsrc_bmap * rsrc,int nrsrc)169 bool rvu_rsrc_check_contig(struct rsrc_bmap *rsrc, int nrsrc)
170 {
171 int start;
172
173 if (!rsrc->bmap)
174 return false;
175
176 start = bitmap_find_next_zero_area(rsrc->bmap, rsrc->max, 0, nrsrc, 0);
177 if (start >= rsrc->max)
178 return false;
179
180 return true;
181 }
182
rvu_free_rsrc(struct rsrc_bmap * rsrc,int id)183 void rvu_free_rsrc(struct rsrc_bmap *rsrc, int id)
184 {
185 if (!rsrc->bmap)
186 return;
187
188 __clear_bit(id, rsrc->bmap);
189 }
190
rvu_rsrc_free_count(struct rsrc_bmap * rsrc)191 int rvu_rsrc_free_count(struct rsrc_bmap *rsrc)
192 {
193 int used;
194
195 if (!rsrc->bmap)
196 return 0;
197
198 used = bitmap_weight(rsrc->bmap, rsrc->max);
199 return (rsrc->max - used);
200 }
201
is_rsrc_free(struct rsrc_bmap * rsrc,int id)202 bool is_rsrc_free(struct rsrc_bmap *rsrc, int id)
203 {
204 if (!rsrc->bmap)
205 return false;
206
207 return !test_bit(id, rsrc->bmap);
208 }
209
rvu_alloc_bitmap(struct rsrc_bmap * rsrc)210 int rvu_alloc_bitmap(struct rsrc_bmap *rsrc)
211 {
212 rsrc->bmap = kcalloc(BITS_TO_LONGS(rsrc->max),
213 sizeof(long), GFP_KERNEL);
214 if (!rsrc->bmap)
215 return -ENOMEM;
216 return 0;
217 }
218
rvu_free_bitmap(struct rsrc_bmap * rsrc)219 void rvu_free_bitmap(struct rsrc_bmap *rsrc)
220 {
221 kfree(rsrc->bmap);
222 }
223
224 /* Get block LF's HW index from a PF_FUNC's block slot number */
rvu_get_lf(struct rvu * rvu,struct rvu_block * block,u16 pcifunc,u16 slot)225 int rvu_get_lf(struct rvu *rvu, struct rvu_block *block, u16 pcifunc, u16 slot)
226 {
227 u16 match = 0;
228 int lf;
229
230 mutex_lock(&rvu->rsrc_lock);
231 for (lf = 0; lf < block->lf.max; lf++) {
232 if (block->fn_map[lf] == pcifunc) {
233 if (slot == match) {
234 mutex_unlock(&rvu->rsrc_lock);
235 return lf;
236 }
237 match++;
238 }
239 }
240 mutex_unlock(&rvu->rsrc_lock);
241 return -ENODEV;
242 }
243
244 /* Convert BLOCK_TYPE_E to a BLOCK_ADDR_E.
245 * Some silicon variants of OcteonTX2 supports
246 * multiple blocks of same type.
247 *
248 * @pcifunc has to be zero when no LF is yet attached.
249 *
250 * For a pcifunc if LFs are attached from multiple blocks of same type, then
251 * return blkaddr of first encountered block.
252 */
rvu_get_blkaddr(struct rvu * rvu,int blktype,u16 pcifunc)253 int rvu_get_blkaddr(struct rvu *rvu, int blktype, u16 pcifunc)
254 {
255 int devnum, blkaddr = -ENODEV;
256 u64 cfg, reg;
257 bool is_pf;
258
259 switch (blktype) {
260 case BLKTYPE_NPC:
261 blkaddr = BLKADDR_NPC;
262 goto exit;
263 case BLKTYPE_NPA:
264 blkaddr = BLKADDR_NPA;
265 goto exit;
266 case BLKTYPE_NIX:
267 /* For now assume NIX0 */
268 if (!pcifunc) {
269 blkaddr = BLKADDR_NIX0;
270 goto exit;
271 }
272 break;
273 case BLKTYPE_SSO:
274 blkaddr = BLKADDR_SSO;
275 goto exit;
276 case BLKTYPE_SSOW:
277 blkaddr = BLKADDR_SSOW;
278 goto exit;
279 case BLKTYPE_TIM:
280 blkaddr = BLKADDR_TIM;
281 goto exit;
282 case BLKTYPE_CPT:
283 /* For now assume CPT0 */
284 if (!pcifunc) {
285 blkaddr = BLKADDR_CPT0;
286 goto exit;
287 }
288 break;
289 }
290
291 /* Check if this is a RVU PF or VF */
292 if (pcifunc & RVU_PFVF_FUNC_MASK) {
293 is_pf = false;
294 devnum = rvu_get_hwvf(rvu, pcifunc);
295 } else {
296 is_pf = true;
297 devnum = rvu_get_pf(pcifunc);
298 }
299
300 /* Check if the 'pcifunc' has a NIX LF from 'BLKADDR_NIX0' or
301 * 'BLKADDR_NIX1'.
302 */
303 if (blktype == BLKTYPE_NIX) {
304 reg = is_pf ? RVU_PRIV_PFX_NIXX_CFG(0) :
305 RVU_PRIV_HWVFX_NIXX_CFG(0);
306 cfg = rvu_read64(rvu, BLKADDR_RVUM, reg | (devnum << 16));
307 if (cfg) {
308 blkaddr = BLKADDR_NIX0;
309 goto exit;
310 }
311
312 reg = is_pf ? RVU_PRIV_PFX_NIXX_CFG(1) :
313 RVU_PRIV_HWVFX_NIXX_CFG(1);
314 cfg = rvu_read64(rvu, BLKADDR_RVUM, reg | (devnum << 16));
315 if (cfg)
316 blkaddr = BLKADDR_NIX1;
317 }
318
319 if (blktype == BLKTYPE_CPT) {
320 reg = is_pf ? RVU_PRIV_PFX_CPTX_CFG(0) :
321 RVU_PRIV_HWVFX_CPTX_CFG(0);
322 cfg = rvu_read64(rvu, BLKADDR_RVUM, reg | (devnum << 16));
323 if (cfg) {
324 blkaddr = BLKADDR_CPT0;
325 goto exit;
326 }
327
328 reg = is_pf ? RVU_PRIV_PFX_CPTX_CFG(1) :
329 RVU_PRIV_HWVFX_CPTX_CFG(1);
330 cfg = rvu_read64(rvu, BLKADDR_RVUM, reg | (devnum << 16));
331 if (cfg)
332 blkaddr = BLKADDR_CPT1;
333 }
334
335 exit:
336 if (is_block_implemented(rvu->hw, blkaddr))
337 return blkaddr;
338 return -ENODEV;
339 }
340
rvu_update_rsrc_map(struct rvu * rvu,struct rvu_pfvf * pfvf,struct rvu_block * block,u16 pcifunc,u16 lf,bool attach)341 static void rvu_update_rsrc_map(struct rvu *rvu, struct rvu_pfvf *pfvf,
342 struct rvu_block *block, u16 pcifunc,
343 u16 lf, bool attach)
344 {
345 int devnum, num_lfs = 0;
346 bool is_pf;
347 u64 reg;
348
349 if (lf >= block->lf.max) {
350 dev_err(&rvu->pdev->dev,
351 "%s: FATAL: LF %d is >= %s's max lfs i.e %d\n",
352 __func__, lf, block->name, block->lf.max);
353 return;
354 }
355
356 /* Check if this is for a RVU PF or VF */
357 if (pcifunc & RVU_PFVF_FUNC_MASK) {
358 is_pf = false;
359 devnum = rvu_get_hwvf(rvu, pcifunc);
360 } else {
361 is_pf = true;
362 devnum = rvu_get_pf(pcifunc);
363 }
364
365 block->fn_map[lf] = attach ? pcifunc : 0;
366
367 switch (block->addr) {
368 case BLKADDR_NPA:
369 pfvf->npalf = attach ? true : false;
370 num_lfs = pfvf->npalf;
371 break;
372 case BLKADDR_NIX0:
373 case BLKADDR_NIX1:
374 pfvf->nixlf = attach ? true : false;
375 num_lfs = pfvf->nixlf;
376 break;
377 case BLKADDR_SSO:
378 attach ? pfvf->sso++ : pfvf->sso--;
379 num_lfs = pfvf->sso;
380 break;
381 case BLKADDR_SSOW:
382 attach ? pfvf->ssow++ : pfvf->ssow--;
383 num_lfs = pfvf->ssow;
384 break;
385 case BLKADDR_TIM:
386 attach ? pfvf->timlfs++ : pfvf->timlfs--;
387 num_lfs = pfvf->timlfs;
388 break;
389 case BLKADDR_CPT0:
390 attach ? pfvf->cptlfs++ : pfvf->cptlfs--;
391 num_lfs = pfvf->cptlfs;
392 break;
393 case BLKADDR_CPT1:
394 attach ? pfvf->cpt1_lfs++ : pfvf->cpt1_lfs--;
395 num_lfs = pfvf->cpt1_lfs;
396 break;
397 }
398
399 reg = is_pf ? block->pf_lfcnt_reg : block->vf_lfcnt_reg;
400 rvu_write64(rvu, BLKADDR_RVUM, reg | (devnum << 16), num_lfs);
401 }
402
rvu_get_pf(u16 pcifunc)403 inline int rvu_get_pf(u16 pcifunc)
404 {
405 return (pcifunc >> RVU_PFVF_PF_SHIFT) & RVU_PFVF_PF_MASK;
406 }
407
rvu_get_pf_numvfs(struct rvu * rvu,int pf,int * numvfs,int * hwvf)408 void rvu_get_pf_numvfs(struct rvu *rvu, int pf, int *numvfs, int *hwvf)
409 {
410 u64 cfg;
411
412 /* Get numVFs attached to this PF and first HWVF */
413 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf));
414 if (numvfs)
415 *numvfs = (cfg >> 12) & 0xFF;
416 if (hwvf)
417 *hwvf = cfg & 0xFFF;
418 }
419
rvu_get_hwvf(struct rvu * rvu,int pcifunc)420 int rvu_get_hwvf(struct rvu *rvu, int pcifunc)
421 {
422 int pf, func;
423 u64 cfg;
424
425 pf = rvu_get_pf(pcifunc);
426 func = pcifunc & RVU_PFVF_FUNC_MASK;
427
428 /* Get first HWVF attached to this PF */
429 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf));
430
431 return ((cfg & 0xFFF) + func - 1);
432 }
433
rvu_get_pfvf(struct rvu * rvu,int pcifunc)434 struct rvu_pfvf *rvu_get_pfvf(struct rvu *rvu, int pcifunc)
435 {
436 /* Check if it is a PF or VF */
437 if (pcifunc & RVU_PFVF_FUNC_MASK)
438 return &rvu->hwvf[rvu_get_hwvf(rvu, pcifunc)];
439 else
440 return &rvu->pf[rvu_get_pf(pcifunc)];
441 }
442
is_pf_func_valid(struct rvu * rvu,u16 pcifunc)443 static bool is_pf_func_valid(struct rvu *rvu, u16 pcifunc)
444 {
445 int pf, vf, nvfs;
446 u64 cfg;
447
448 pf = rvu_get_pf(pcifunc);
449 if (pf >= rvu->hw->total_pfs)
450 return false;
451
452 if (!(pcifunc & RVU_PFVF_FUNC_MASK))
453 return true;
454
455 /* Check if VF is within number of VFs attached to this PF */
456 vf = (pcifunc & RVU_PFVF_FUNC_MASK) - 1;
457 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf));
458 nvfs = (cfg >> 12) & 0xFF;
459 if (vf >= nvfs)
460 return false;
461
462 return true;
463 }
464
is_block_implemented(struct rvu_hwinfo * hw,int blkaddr)465 bool is_block_implemented(struct rvu_hwinfo *hw, int blkaddr)
466 {
467 struct rvu_block *block;
468
469 if (blkaddr < BLKADDR_RVUM || blkaddr >= BLK_COUNT)
470 return false;
471
472 block = &hw->block[blkaddr];
473 return block->implemented;
474 }
475
rvu_check_block_implemented(struct rvu * rvu)476 static void rvu_check_block_implemented(struct rvu *rvu)
477 {
478 struct rvu_hwinfo *hw = rvu->hw;
479 struct rvu_block *block;
480 int blkid;
481 u64 cfg;
482
483 /* For each block check if 'implemented' bit is set */
484 for (blkid = 0; blkid < BLK_COUNT; blkid++) {
485 block = &hw->block[blkid];
486 cfg = rvupf_read64(rvu, RVU_PF_BLOCK_ADDRX_DISC(blkid));
487 if (cfg & BIT_ULL(11))
488 block->implemented = true;
489 }
490 }
491
rvu_setup_rvum_blk_revid(struct rvu * rvu)492 static void rvu_setup_rvum_blk_revid(struct rvu *rvu)
493 {
494 rvu_write64(rvu, BLKADDR_RVUM,
495 RVU_PRIV_BLOCK_TYPEX_REV(BLKTYPE_RVUM),
496 RVU_BLK_RVUM_REVID);
497 }
498
rvu_clear_rvum_blk_revid(struct rvu * rvu)499 static void rvu_clear_rvum_blk_revid(struct rvu *rvu)
500 {
501 rvu_write64(rvu, BLKADDR_RVUM,
502 RVU_PRIV_BLOCK_TYPEX_REV(BLKTYPE_RVUM), 0x00);
503 }
504
rvu_lf_reset(struct rvu * rvu,struct rvu_block * block,int lf)505 int rvu_lf_reset(struct rvu *rvu, struct rvu_block *block, int lf)
506 {
507 int err;
508
509 if (!block->implemented)
510 return 0;
511
512 rvu_write64(rvu, block->addr, block->lfreset_reg, lf | BIT_ULL(12));
513 err = rvu_poll_reg(rvu, block->addr, block->lfreset_reg, BIT_ULL(12),
514 true);
515 return err;
516 }
517
rvu_block_reset(struct rvu * rvu,int blkaddr,u64 rst_reg)518 static void rvu_block_reset(struct rvu *rvu, int blkaddr, u64 rst_reg)
519 {
520 struct rvu_block *block = &rvu->hw->block[blkaddr];
521 int err;
522
523 if (!block->implemented)
524 return;
525
526 rvu_write64(rvu, blkaddr, rst_reg, BIT_ULL(0));
527 err = rvu_poll_reg(rvu, blkaddr, rst_reg, BIT_ULL(63), true);
528 if (err) {
529 dev_err(rvu->dev, "HW block:%d reset timeout retrying again\n", blkaddr);
530 while (rvu_poll_reg(rvu, blkaddr, rst_reg, BIT_ULL(63), true) == -EBUSY)
531 ;
532 }
533 }
534
rvu_reset_all_blocks(struct rvu * rvu)535 static void rvu_reset_all_blocks(struct rvu *rvu)
536 {
537 /* Do a HW reset of all RVU blocks */
538 rvu_block_reset(rvu, BLKADDR_NPA, NPA_AF_BLK_RST);
539 rvu_block_reset(rvu, BLKADDR_NIX0, NIX_AF_BLK_RST);
540 rvu_block_reset(rvu, BLKADDR_NIX1, NIX_AF_BLK_RST);
541 rvu_block_reset(rvu, BLKADDR_NPC, NPC_AF_BLK_RST);
542 rvu_block_reset(rvu, BLKADDR_SSO, SSO_AF_BLK_RST);
543 rvu_block_reset(rvu, BLKADDR_TIM, TIM_AF_BLK_RST);
544 rvu_block_reset(rvu, BLKADDR_CPT0, CPT_AF_BLK_RST);
545 rvu_block_reset(rvu, BLKADDR_CPT1, CPT_AF_BLK_RST);
546 rvu_block_reset(rvu, BLKADDR_NDC_NIX0_RX, NDC_AF_BLK_RST);
547 rvu_block_reset(rvu, BLKADDR_NDC_NIX0_TX, NDC_AF_BLK_RST);
548 rvu_block_reset(rvu, BLKADDR_NDC_NIX1_RX, NDC_AF_BLK_RST);
549 rvu_block_reset(rvu, BLKADDR_NDC_NIX1_TX, NDC_AF_BLK_RST);
550 rvu_block_reset(rvu, BLKADDR_NDC_NPA0, NDC_AF_BLK_RST);
551 }
552
rvu_scan_block(struct rvu * rvu,struct rvu_block * block)553 static void rvu_scan_block(struct rvu *rvu, struct rvu_block *block)
554 {
555 struct rvu_pfvf *pfvf;
556 u64 cfg;
557 int lf;
558
559 for (lf = 0; lf < block->lf.max; lf++) {
560 cfg = rvu_read64(rvu, block->addr,
561 block->lfcfg_reg | (lf << block->lfshift));
562 if (!(cfg & BIT_ULL(63)))
563 continue;
564
565 /* Set this resource as being used */
566 __set_bit(lf, block->lf.bmap);
567
568 /* Get, to whom this LF is attached */
569 pfvf = rvu_get_pfvf(rvu, (cfg >> 8) & 0xFFFF);
570 rvu_update_rsrc_map(rvu, pfvf, block,
571 (cfg >> 8) & 0xFFFF, lf, true);
572
573 /* Set start MSIX vector for this LF within this PF/VF */
574 rvu_set_msix_offset(rvu, pfvf, block, lf);
575 }
576 }
577
rvu_check_min_msix_vec(struct rvu * rvu,int nvecs,int pf,int vf)578 static void rvu_check_min_msix_vec(struct rvu *rvu, int nvecs, int pf, int vf)
579 {
580 int min_vecs;
581
582 if (!vf)
583 goto check_pf;
584
585 if (!nvecs) {
586 dev_warn(rvu->dev,
587 "PF%d:VF%d is configured with zero msix vectors, %d\n",
588 pf, vf - 1, nvecs);
589 }
590 return;
591
592 check_pf:
593 if (pf == 0)
594 min_vecs = RVU_AF_INT_VEC_CNT + RVU_PF_INT_VEC_CNT;
595 else
596 min_vecs = RVU_PF_INT_VEC_CNT;
597
598 if (!(nvecs < min_vecs))
599 return;
600 dev_warn(rvu->dev,
601 "PF%d is configured with too few vectors, %d, min is %d\n",
602 pf, nvecs, min_vecs);
603 }
604
rvu_setup_msix_resources(struct rvu * rvu)605 static int rvu_setup_msix_resources(struct rvu *rvu)
606 {
607 struct rvu_hwinfo *hw = rvu->hw;
608 int pf, vf, numvfs, hwvf, err;
609 int nvecs, offset, max_msix;
610 struct rvu_pfvf *pfvf;
611 u64 cfg, phy_addr;
612 dma_addr_t iova;
613
614 for (pf = 0; pf < hw->total_pfs; pf++) {
615 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf));
616 /* If PF is not enabled, nothing to do */
617 if (!((cfg >> 20) & 0x01))
618 continue;
619
620 rvu_get_pf_numvfs(rvu, pf, &numvfs, &hwvf);
621
622 pfvf = &rvu->pf[pf];
623 /* Get num of MSIX vectors attached to this PF */
624 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_MSIX_CFG(pf));
625 pfvf->msix.max = ((cfg >> 32) & 0xFFF) + 1;
626 rvu_check_min_msix_vec(rvu, pfvf->msix.max, pf, 0);
627
628 /* Alloc msix bitmap for this PF */
629 err = rvu_alloc_bitmap(&pfvf->msix);
630 if (err)
631 return err;
632
633 /* Allocate memory for MSIX vector to RVU block LF mapping */
634 pfvf->msix_lfmap = devm_kcalloc(rvu->dev, pfvf->msix.max,
635 sizeof(u16), GFP_KERNEL);
636 if (!pfvf->msix_lfmap)
637 return -ENOMEM;
638
639 /* For PF0 (AF) firmware will set msix vector offsets for
640 * AF, block AF and PF0_INT vectors, so jump to VFs.
641 */
642 if (!pf)
643 goto setup_vfmsix;
644
645 /* Set MSIX offset for PF's 'RVU_PF_INT_VEC' vectors.
646 * These are allocated on driver init and never freed,
647 * so no need to set 'msix_lfmap' for these.
648 */
649 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_INT_CFG(pf));
650 nvecs = (cfg >> 12) & 0xFF;
651 cfg &= ~0x7FFULL;
652 offset = rvu_alloc_rsrc_contig(&pfvf->msix, nvecs);
653 rvu_write64(rvu, BLKADDR_RVUM,
654 RVU_PRIV_PFX_INT_CFG(pf), cfg | offset);
655 setup_vfmsix:
656 /* Alloc msix bitmap for VFs */
657 for (vf = 0; vf < numvfs; vf++) {
658 pfvf = &rvu->hwvf[hwvf + vf];
659 /* Get num of MSIX vectors attached to this VF */
660 cfg = rvu_read64(rvu, BLKADDR_RVUM,
661 RVU_PRIV_PFX_MSIX_CFG(pf));
662 pfvf->msix.max = (cfg & 0xFFF) + 1;
663 rvu_check_min_msix_vec(rvu, pfvf->msix.max, pf, vf + 1);
664
665 /* Alloc msix bitmap for this VF */
666 err = rvu_alloc_bitmap(&pfvf->msix);
667 if (err)
668 return err;
669
670 pfvf->msix_lfmap =
671 devm_kcalloc(rvu->dev, pfvf->msix.max,
672 sizeof(u16), GFP_KERNEL);
673 if (!pfvf->msix_lfmap)
674 return -ENOMEM;
675
676 /* Set MSIX offset for HWVF's 'RVU_VF_INT_VEC' vectors.
677 * These are allocated on driver init and never freed,
678 * so no need to set 'msix_lfmap' for these.
679 */
680 cfg = rvu_read64(rvu, BLKADDR_RVUM,
681 RVU_PRIV_HWVFX_INT_CFG(hwvf + vf));
682 nvecs = (cfg >> 12) & 0xFF;
683 cfg &= ~0x7FFULL;
684 offset = rvu_alloc_rsrc_contig(&pfvf->msix, nvecs);
685 rvu_write64(rvu, BLKADDR_RVUM,
686 RVU_PRIV_HWVFX_INT_CFG(hwvf + vf),
687 cfg | offset);
688 }
689 }
690
691 /* HW interprets RVU_AF_MSIXTR_BASE address as an IOVA, hence
692 * create an IOMMU mapping for the physical address configured by
693 * firmware and reconfig RVU_AF_MSIXTR_BASE with IOVA.
694 */
695 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_CONST);
696 max_msix = cfg & 0xFFFFF;
697 if (rvu->fwdata && rvu->fwdata->msixtr_base)
698 phy_addr = rvu->fwdata->msixtr_base;
699 else
700 phy_addr = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_MSIXTR_BASE);
701
702 iova = dma_map_resource(rvu->dev, phy_addr,
703 max_msix * PCI_MSIX_ENTRY_SIZE,
704 DMA_BIDIRECTIONAL, 0);
705
706 if (dma_mapping_error(rvu->dev, iova))
707 return -ENOMEM;
708
709 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_MSIXTR_BASE, (u64)iova);
710 rvu->msix_base_iova = iova;
711 rvu->msixtr_base_phy = phy_addr;
712
713 return 0;
714 }
715
rvu_reset_msix(struct rvu * rvu)716 static void rvu_reset_msix(struct rvu *rvu)
717 {
718 /* Restore msixtr base register */
719 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_MSIXTR_BASE,
720 rvu->msixtr_base_phy);
721 }
722
rvu_free_hw_resources(struct rvu * rvu)723 static void rvu_free_hw_resources(struct rvu *rvu)
724 {
725 struct rvu_hwinfo *hw = rvu->hw;
726 struct rvu_block *block;
727 struct rvu_pfvf *pfvf;
728 int id, max_msix;
729 u64 cfg;
730
731 rvu_npa_freemem(rvu);
732 rvu_npc_freemem(rvu);
733 rvu_nix_freemem(rvu);
734
735 /* Free block LF bitmaps */
736 for (id = 0; id < BLK_COUNT; id++) {
737 block = &hw->block[id];
738 kfree(block->lf.bmap);
739 }
740
741 /* Free MSIX bitmaps */
742 for (id = 0; id < hw->total_pfs; id++) {
743 pfvf = &rvu->pf[id];
744 kfree(pfvf->msix.bmap);
745 }
746
747 for (id = 0; id < hw->total_vfs; id++) {
748 pfvf = &rvu->hwvf[id];
749 kfree(pfvf->msix.bmap);
750 }
751
752 /* Unmap MSIX vector base IOVA mapping */
753 if (!rvu->msix_base_iova)
754 return;
755 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_CONST);
756 max_msix = cfg & 0xFFFFF;
757 dma_unmap_resource(rvu->dev, rvu->msix_base_iova,
758 max_msix * PCI_MSIX_ENTRY_SIZE,
759 DMA_BIDIRECTIONAL, 0);
760
761 rvu_reset_msix(rvu);
762 mutex_destroy(&rvu->rsrc_lock);
763 }
764
rvu_setup_pfvf_macaddress(struct rvu * rvu)765 static void rvu_setup_pfvf_macaddress(struct rvu *rvu)
766 {
767 struct rvu_hwinfo *hw = rvu->hw;
768 int pf, vf, numvfs, hwvf;
769 struct rvu_pfvf *pfvf;
770 u64 *mac;
771
772 for (pf = 0; pf < hw->total_pfs; pf++) {
773 /* For PF0(AF), Assign MAC address to only VFs (LBKVFs) */
774 if (!pf)
775 goto lbkvf;
776
777 if (!is_pf_cgxmapped(rvu, pf))
778 continue;
779 /* Assign MAC address to PF */
780 pfvf = &rvu->pf[pf];
781 if (rvu->fwdata && pf < PF_MACNUM_MAX) {
782 mac = &rvu->fwdata->pf_macs[pf];
783 if (*mac)
784 u64_to_ether_addr(*mac, pfvf->mac_addr);
785 else
786 eth_random_addr(pfvf->mac_addr);
787 } else {
788 eth_random_addr(pfvf->mac_addr);
789 }
790 ether_addr_copy(pfvf->default_mac, pfvf->mac_addr);
791
792 lbkvf:
793 /* Assign MAC address to VFs*/
794 rvu_get_pf_numvfs(rvu, pf, &numvfs, &hwvf);
795 for (vf = 0; vf < numvfs; vf++, hwvf++) {
796 pfvf = &rvu->hwvf[hwvf];
797 if (rvu->fwdata && hwvf < VF_MACNUM_MAX) {
798 mac = &rvu->fwdata->vf_macs[hwvf];
799 if (*mac)
800 u64_to_ether_addr(*mac, pfvf->mac_addr);
801 else
802 eth_random_addr(pfvf->mac_addr);
803 } else {
804 eth_random_addr(pfvf->mac_addr);
805 }
806 ether_addr_copy(pfvf->default_mac, pfvf->mac_addr);
807 }
808 }
809 }
810
rvu_fwdata_init(struct rvu * rvu)811 static int rvu_fwdata_init(struct rvu *rvu)
812 {
813 u64 fwdbase;
814 int err;
815
816 /* Get firmware data base address */
817 err = cgx_get_fwdata_base(&fwdbase);
818 if (err)
819 goto fail;
820 rvu->fwdata = ioremap_wc(fwdbase, sizeof(struct rvu_fwdata));
821 if (!rvu->fwdata)
822 goto fail;
823 if (!is_rvu_fwdata_valid(rvu)) {
824 dev_err(rvu->dev,
825 "Mismatch in 'fwdata' struct btw kernel and firmware\n");
826 iounmap(rvu->fwdata);
827 rvu->fwdata = NULL;
828 return -EINVAL;
829 }
830 return 0;
831 fail:
832 dev_info(rvu->dev, "Unable to fetch 'fwdata' from firmware\n");
833 return -EIO;
834 }
835
rvu_fwdata_exit(struct rvu * rvu)836 static void rvu_fwdata_exit(struct rvu *rvu)
837 {
838 if (rvu->fwdata)
839 iounmap(rvu->fwdata);
840 }
841
rvu_setup_nix_hw_resource(struct rvu * rvu,int blkaddr)842 static int rvu_setup_nix_hw_resource(struct rvu *rvu, int blkaddr)
843 {
844 struct rvu_hwinfo *hw = rvu->hw;
845 struct rvu_block *block;
846 int blkid;
847 u64 cfg;
848
849 /* Init NIX LF's bitmap */
850 block = &hw->block[blkaddr];
851 if (!block->implemented)
852 return 0;
853 blkid = (blkaddr == BLKADDR_NIX0) ? 0 : 1;
854 cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2);
855 block->lf.max = cfg & 0xFFF;
856 block->addr = blkaddr;
857 block->type = BLKTYPE_NIX;
858 block->lfshift = 8;
859 block->lookup_reg = NIX_AF_RVU_LF_CFG_DEBUG;
860 block->pf_lfcnt_reg = RVU_PRIV_PFX_NIXX_CFG(blkid);
861 block->vf_lfcnt_reg = RVU_PRIV_HWVFX_NIXX_CFG(blkid);
862 block->lfcfg_reg = NIX_PRIV_LFX_CFG;
863 block->msixcfg_reg = NIX_PRIV_LFX_INT_CFG;
864 block->lfreset_reg = NIX_AF_LF_RST;
865 block->rvu = rvu;
866 sprintf(block->name, "NIX%d", blkid);
867 rvu->nix_blkaddr[blkid] = blkaddr;
868 return rvu_alloc_bitmap(&block->lf);
869 }
870
rvu_setup_cpt_hw_resource(struct rvu * rvu,int blkaddr)871 static int rvu_setup_cpt_hw_resource(struct rvu *rvu, int blkaddr)
872 {
873 struct rvu_hwinfo *hw = rvu->hw;
874 struct rvu_block *block;
875 int blkid;
876 u64 cfg;
877
878 /* Init CPT LF's bitmap */
879 block = &hw->block[blkaddr];
880 if (!block->implemented)
881 return 0;
882 blkid = (blkaddr == BLKADDR_CPT0) ? 0 : 1;
883 cfg = rvu_read64(rvu, blkaddr, CPT_AF_CONSTANTS0);
884 block->lf.max = cfg & 0xFF;
885 block->addr = blkaddr;
886 block->type = BLKTYPE_CPT;
887 block->multislot = true;
888 block->lfshift = 3;
889 block->lookup_reg = CPT_AF_RVU_LF_CFG_DEBUG;
890 block->pf_lfcnt_reg = RVU_PRIV_PFX_CPTX_CFG(blkid);
891 block->vf_lfcnt_reg = RVU_PRIV_HWVFX_CPTX_CFG(blkid);
892 block->lfcfg_reg = CPT_PRIV_LFX_CFG;
893 block->msixcfg_reg = CPT_PRIV_LFX_INT_CFG;
894 block->lfreset_reg = CPT_AF_LF_RST;
895 block->rvu = rvu;
896 sprintf(block->name, "CPT%d", blkid);
897 return rvu_alloc_bitmap(&block->lf);
898 }
899
rvu_get_lbk_bufsize(struct rvu * rvu)900 static void rvu_get_lbk_bufsize(struct rvu *rvu)
901 {
902 struct pci_dev *pdev = NULL;
903 void __iomem *base;
904 u64 lbk_const;
905
906 pdev = pci_get_device(PCI_VENDOR_ID_CAVIUM,
907 PCI_DEVID_OCTEONTX2_LBK, pdev);
908 if (!pdev)
909 return;
910
911 base = pci_ioremap_bar(pdev, 0);
912 if (!base)
913 goto err_put;
914
915 lbk_const = readq(base + LBK_CONST);
916
917 /* cache fifo size */
918 rvu->hw->lbk_bufsize = FIELD_GET(LBK_CONST_BUF_SIZE, lbk_const);
919
920 iounmap(base);
921 err_put:
922 pci_dev_put(pdev);
923 }
924
rvu_setup_hw_resources(struct rvu * rvu)925 static int rvu_setup_hw_resources(struct rvu *rvu)
926 {
927 struct rvu_hwinfo *hw = rvu->hw;
928 struct rvu_block *block;
929 int blkid, err;
930 u64 cfg;
931
932 /* Get HW supported max RVU PF & VF count */
933 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_CONST);
934 hw->total_pfs = (cfg >> 32) & 0xFF;
935 hw->total_vfs = (cfg >> 20) & 0xFFF;
936 hw->max_vfs_per_pf = (cfg >> 40) & 0xFF;
937
938 /* Init NPA LF's bitmap */
939 block = &hw->block[BLKADDR_NPA];
940 if (!block->implemented)
941 goto nix;
942 cfg = rvu_read64(rvu, BLKADDR_NPA, NPA_AF_CONST);
943 block->lf.max = (cfg >> 16) & 0xFFF;
944 block->addr = BLKADDR_NPA;
945 block->type = BLKTYPE_NPA;
946 block->lfshift = 8;
947 block->lookup_reg = NPA_AF_RVU_LF_CFG_DEBUG;
948 block->pf_lfcnt_reg = RVU_PRIV_PFX_NPA_CFG;
949 block->vf_lfcnt_reg = RVU_PRIV_HWVFX_NPA_CFG;
950 block->lfcfg_reg = NPA_PRIV_LFX_CFG;
951 block->msixcfg_reg = NPA_PRIV_LFX_INT_CFG;
952 block->lfreset_reg = NPA_AF_LF_RST;
953 block->rvu = rvu;
954 sprintf(block->name, "NPA");
955 err = rvu_alloc_bitmap(&block->lf);
956 if (err) {
957 dev_err(rvu->dev,
958 "%s: Failed to allocate NPA LF bitmap\n", __func__);
959 return err;
960 }
961
962 nix:
963 err = rvu_setup_nix_hw_resource(rvu, BLKADDR_NIX0);
964 if (err) {
965 dev_err(rvu->dev,
966 "%s: Failed to allocate NIX0 LFs bitmap\n", __func__);
967 return err;
968 }
969
970 err = rvu_setup_nix_hw_resource(rvu, BLKADDR_NIX1);
971 if (err) {
972 dev_err(rvu->dev,
973 "%s: Failed to allocate NIX1 LFs bitmap\n", __func__);
974 return err;
975 }
976
977 /* Init SSO group's bitmap */
978 block = &hw->block[BLKADDR_SSO];
979 if (!block->implemented)
980 goto ssow;
981 cfg = rvu_read64(rvu, BLKADDR_SSO, SSO_AF_CONST);
982 block->lf.max = cfg & 0xFFFF;
983 block->addr = BLKADDR_SSO;
984 block->type = BLKTYPE_SSO;
985 block->multislot = true;
986 block->lfshift = 3;
987 block->lookup_reg = SSO_AF_RVU_LF_CFG_DEBUG;
988 block->pf_lfcnt_reg = RVU_PRIV_PFX_SSO_CFG;
989 block->vf_lfcnt_reg = RVU_PRIV_HWVFX_SSO_CFG;
990 block->lfcfg_reg = SSO_PRIV_LFX_HWGRP_CFG;
991 block->msixcfg_reg = SSO_PRIV_LFX_HWGRP_INT_CFG;
992 block->lfreset_reg = SSO_AF_LF_HWGRP_RST;
993 block->rvu = rvu;
994 sprintf(block->name, "SSO GROUP");
995 err = rvu_alloc_bitmap(&block->lf);
996 if (err) {
997 dev_err(rvu->dev,
998 "%s: Failed to allocate SSO LF bitmap\n", __func__);
999 return err;
1000 }
1001
1002 ssow:
1003 /* Init SSO workslot's bitmap */
1004 block = &hw->block[BLKADDR_SSOW];
1005 if (!block->implemented)
1006 goto tim;
1007 block->lf.max = (cfg >> 56) & 0xFF;
1008 block->addr = BLKADDR_SSOW;
1009 block->type = BLKTYPE_SSOW;
1010 block->multislot = true;
1011 block->lfshift = 3;
1012 block->lookup_reg = SSOW_AF_RVU_LF_HWS_CFG_DEBUG;
1013 block->pf_lfcnt_reg = RVU_PRIV_PFX_SSOW_CFG;
1014 block->vf_lfcnt_reg = RVU_PRIV_HWVFX_SSOW_CFG;
1015 block->lfcfg_reg = SSOW_PRIV_LFX_HWS_CFG;
1016 block->msixcfg_reg = SSOW_PRIV_LFX_HWS_INT_CFG;
1017 block->lfreset_reg = SSOW_AF_LF_HWS_RST;
1018 block->rvu = rvu;
1019 sprintf(block->name, "SSOWS");
1020 err = rvu_alloc_bitmap(&block->lf);
1021 if (err) {
1022 dev_err(rvu->dev,
1023 "%s: Failed to allocate SSOW LF bitmap\n", __func__);
1024 return err;
1025 }
1026
1027 tim:
1028 /* Init TIM LF's bitmap */
1029 block = &hw->block[BLKADDR_TIM];
1030 if (!block->implemented)
1031 goto cpt;
1032 cfg = rvu_read64(rvu, BLKADDR_TIM, TIM_AF_CONST);
1033 block->lf.max = cfg & 0xFFFF;
1034 block->addr = BLKADDR_TIM;
1035 block->type = BLKTYPE_TIM;
1036 block->multislot = true;
1037 block->lfshift = 3;
1038 block->lookup_reg = TIM_AF_RVU_LF_CFG_DEBUG;
1039 block->pf_lfcnt_reg = RVU_PRIV_PFX_TIM_CFG;
1040 block->vf_lfcnt_reg = RVU_PRIV_HWVFX_TIM_CFG;
1041 block->lfcfg_reg = TIM_PRIV_LFX_CFG;
1042 block->msixcfg_reg = TIM_PRIV_LFX_INT_CFG;
1043 block->lfreset_reg = TIM_AF_LF_RST;
1044 block->rvu = rvu;
1045 sprintf(block->name, "TIM");
1046 err = rvu_alloc_bitmap(&block->lf);
1047 if (err) {
1048 dev_err(rvu->dev,
1049 "%s: Failed to allocate TIM LF bitmap\n", __func__);
1050 return err;
1051 }
1052
1053 cpt:
1054 err = rvu_setup_cpt_hw_resource(rvu, BLKADDR_CPT0);
1055 if (err) {
1056 dev_err(rvu->dev,
1057 "%s: Failed to allocate CPT0 LF bitmap\n", __func__);
1058 return err;
1059 }
1060 err = rvu_setup_cpt_hw_resource(rvu, BLKADDR_CPT1);
1061 if (err) {
1062 dev_err(rvu->dev,
1063 "%s: Failed to allocate CPT1 LF bitmap\n", __func__);
1064 return err;
1065 }
1066
1067 /* Allocate memory for PFVF data */
1068 rvu->pf = devm_kcalloc(rvu->dev, hw->total_pfs,
1069 sizeof(struct rvu_pfvf), GFP_KERNEL);
1070 if (!rvu->pf) {
1071 dev_err(rvu->dev,
1072 "%s: Failed to allocate memory for PF's rvu_pfvf struct\n", __func__);
1073 return -ENOMEM;
1074 }
1075
1076 rvu->hwvf = devm_kcalloc(rvu->dev, hw->total_vfs,
1077 sizeof(struct rvu_pfvf), GFP_KERNEL);
1078 if (!rvu->hwvf) {
1079 dev_err(rvu->dev,
1080 "%s: Failed to allocate memory for VF's rvu_pfvf struct\n", __func__);
1081 return -ENOMEM;
1082 }
1083
1084 mutex_init(&rvu->rsrc_lock);
1085
1086 rvu_fwdata_init(rvu);
1087
1088 err = rvu_setup_msix_resources(rvu);
1089 if (err) {
1090 dev_err(rvu->dev,
1091 "%s: Failed to setup MSIX resources\n", __func__);
1092 return err;
1093 }
1094
1095 for (blkid = 0; blkid < BLK_COUNT; blkid++) {
1096 block = &hw->block[blkid];
1097 if (!block->lf.bmap)
1098 continue;
1099
1100 /* Allocate memory for block LF/slot to pcifunc mapping info */
1101 block->fn_map = devm_kcalloc(rvu->dev, block->lf.max,
1102 sizeof(u16), GFP_KERNEL);
1103 if (!block->fn_map) {
1104 err = -ENOMEM;
1105 goto msix_err;
1106 }
1107
1108 /* Scan all blocks to check if low level firmware has
1109 * already provisioned any of the resources to a PF/VF.
1110 */
1111 rvu_scan_block(rvu, block);
1112 }
1113
1114 err = rvu_set_channels_base(rvu);
1115 if (err)
1116 goto msix_err;
1117
1118 err = rvu_npc_init(rvu);
1119 if (err) {
1120 dev_err(rvu->dev, "%s: Failed to initialize npc\n", __func__);
1121 goto npc_err;
1122 }
1123
1124 err = rvu_cgx_init(rvu);
1125 if (err) {
1126 dev_err(rvu->dev, "%s: Failed to initialize cgx\n", __func__);
1127 goto cgx_err;
1128 }
1129
1130 err = rvu_npc_exact_init(rvu);
1131 if (err) {
1132 dev_err(rvu->dev, "failed to initialize exact match table\n");
1133 return err;
1134 }
1135
1136 /* Assign MACs for CGX mapped functions */
1137 rvu_setup_pfvf_macaddress(rvu);
1138
1139 err = rvu_npa_init(rvu);
1140 if (err) {
1141 dev_err(rvu->dev, "%s: Failed to initialize npa\n", __func__);
1142 goto npa_err;
1143 }
1144
1145 rvu_get_lbk_bufsize(rvu);
1146
1147 err = rvu_nix_init(rvu);
1148 if (err) {
1149 dev_err(rvu->dev, "%s: Failed to initialize nix\n", __func__);
1150 goto nix_err;
1151 }
1152
1153 err = rvu_sdp_init(rvu);
1154 if (err) {
1155 dev_err(rvu->dev, "%s: Failed to initialize sdp\n", __func__);
1156 goto nix_err;
1157 }
1158
1159 rvu_program_channels(rvu);
1160
1161 err = rvu_mcs_init(rvu);
1162 if (err) {
1163 dev_err(rvu->dev, "%s: Failed to initialize mcs\n", __func__);
1164 goto nix_err;
1165 }
1166
1167 err = rvu_cpt_init(rvu);
1168 if (err) {
1169 dev_err(rvu->dev, "%s: Failed to initialize cpt\n", __func__);
1170 goto mcs_err;
1171 }
1172
1173 return 0;
1174
1175 mcs_err:
1176 rvu_mcs_exit(rvu);
1177 nix_err:
1178 rvu_nix_freemem(rvu);
1179 npa_err:
1180 rvu_npa_freemem(rvu);
1181 cgx_err:
1182 rvu_cgx_exit(rvu);
1183 npc_err:
1184 rvu_npc_freemem(rvu);
1185 rvu_fwdata_exit(rvu);
1186 msix_err:
1187 rvu_reset_msix(rvu);
1188 return err;
1189 }
1190
1191 /* NPA and NIX admin queue APIs */
rvu_aq_free(struct rvu * rvu,struct admin_queue * aq)1192 void rvu_aq_free(struct rvu *rvu, struct admin_queue *aq)
1193 {
1194 if (!aq)
1195 return;
1196
1197 qmem_free(rvu->dev, aq->inst);
1198 qmem_free(rvu->dev, aq->res);
1199 devm_kfree(rvu->dev, aq);
1200 }
1201
rvu_aq_alloc(struct rvu * rvu,struct admin_queue ** ad_queue,int qsize,int inst_size,int res_size)1202 int rvu_aq_alloc(struct rvu *rvu, struct admin_queue **ad_queue,
1203 int qsize, int inst_size, int res_size)
1204 {
1205 struct admin_queue *aq;
1206 int err;
1207
1208 *ad_queue = devm_kzalloc(rvu->dev, sizeof(*aq), GFP_KERNEL);
1209 if (!*ad_queue)
1210 return -ENOMEM;
1211 aq = *ad_queue;
1212
1213 /* Alloc memory for instructions i.e AQ */
1214 err = qmem_alloc(rvu->dev, &aq->inst, qsize, inst_size);
1215 if (err) {
1216 devm_kfree(rvu->dev, aq);
1217 return err;
1218 }
1219
1220 /* Alloc memory for results */
1221 err = qmem_alloc(rvu->dev, &aq->res, qsize, res_size);
1222 if (err) {
1223 rvu_aq_free(rvu, aq);
1224 return err;
1225 }
1226
1227 spin_lock_init(&aq->lock);
1228 return 0;
1229 }
1230
rvu_mbox_handler_ready(struct rvu * rvu,struct msg_req * req,struct ready_msg_rsp * rsp)1231 int rvu_mbox_handler_ready(struct rvu *rvu, struct msg_req *req,
1232 struct ready_msg_rsp *rsp)
1233 {
1234 if (rvu->fwdata) {
1235 rsp->rclk_freq = rvu->fwdata->rclk;
1236 rsp->sclk_freq = rvu->fwdata->sclk;
1237 }
1238 return 0;
1239 }
1240
1241 /* Get current count of a RVU block's LF/slots
1242 * provisioned to a given RVU func.
1243 */
rvu_get_rsrc_mapcount(struct rvu_pfvf * pfvf,int blkaddr)1244 u16 rvu_get_rsrc_mapcount(struct rvu_pfvf *pfvf, int blkaddr)
1245 {
1246 switch (blkaddr) {
1247 case BLKADDR_NPA:
1248 return pfvf->npalf ? 1 : 0;
1249 case BLKADDR_NIX0:
1250 case BLKADDR_NIX1:
1251 return pfvf->nixlf ? 1 : 0;
1252 case BLKADDR_SSO:
1253 return pfvf->sso;
1254 case BLKADDR_SSOW:
1255 return pfvf->ssow;
1256 case BLKADDR_TIM:
1257 return pfvf->timlfs;
1258 case BLKADDR_CPT0:
1259 return pfvf->cptlfs;
1260 case BLKADDR_CPT1:
1261 return pfvf->cpt1_lfs;
1262 }
1263 return 0;
1264 }
1265
1266 /* Return true if LFs of block type are attached to pcifunc */
is_blktype_attached(struct rvu_pfvf * pfvf,int blktype)1267 static bool is_blktype_attached(struct rvu_pfvf *pfvf, int blktype)
1268 {
1269 switch (blktype) {
1270 case BLKTYPE_NPA:
1271 return pfvf->npalf ? 1 : 0;
1272 case BLKTYPE_NIX:
1273 return pfvf->nixlf ? 1 : 0;
1274 case BLKTYPE_SSO:
1275 return !!pfvf->sso;
1276 case BLKTYPE_SSOW:
1277 return !!pfvf->ssow;
1278 case BLKTYPE_TIM:
1279 return !!pfvf->timlfs;
1280 case BLKTYPE_CPT:
1281 return pfvf->cptlfs || pfvf->cpt1_lfs;
1282 }
1283
1284 return false;
1285 }
1286
is_pffunc_map_valid(struct rvu * rvu,u16 pcifunc,int blktype)1287 bool is_pffunc_map_valid(struct rvu *rvu, u16 pcifunc, int blktype)
1288 {
1289 struct rvu_pfvf *pfvf;
1290
1291 if (!is_pf_func_valid(rvu, pcifunc))
1292 return false;
1293
1294 pfvf = rvu_get_pfvf(rvu, pcifunc);
1295
1296 /* Check if this PFFUNC has a LF of type blktype attached */
1297 if (!is_blktype_attached(pfvf, blktype))
1298 return false;
1299
1300 return true;
1301 }
1302
rvu_lookup_rsrc(struct rvu * rvu,struct rvu_block * block,int pcifunc,int slot)1303 static int rvu_lookup_rsrc(struct rvu *rvu, struct rvu_block *block,
1304 int pcifunc, int slot)
1305 {
1306 u64 val;
1307
1308 val = ((u64)pcifunc << 24) | (slot << 16) | (1ULL << 13);
1309 rvu_write64(rvu, block->addr, block->lookup_reg, val);
1310 /* Wait for the lookup to finish */
1311 /* TODO: put some timeout here */
1312 while (rvu_read64(rvu, block->addr, block->lookup_reg) & (1ULL << 13))
1313 ;
1314
1315 val = rvu_read64(rvu, block->addr, block->lookup_reg);
1316
1317 /* Check LF valid bit */
1318 if (!(val & (1ULL << 12)))
1319 return -1;
1320
1321 return (val & 0xFFF);
1322 }
1323
rvu_get_blkaddr_from_slot(struct rvu * rvu,int blktype,u16 pcifunc,u16 global_slot,u16 * slot_in_block)1324 int rvu_get_blkaddr_from_slot(struct rvu *rvu, int blktype, u16 pcifunc,
1325 u16 global_slot, u16 *slot_in_block)
1326 {
1327 struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc);
1328 int numlfs, total_lfs = 0, nr_blocks = 0;
1329 int i, num_blkaddr[BLK_COUNT] = { 0 };
1330 struct rvu_block *block;
1331 int blkaddr;
1332 u16 start_slot;
1333
1334 if (!is_blktype_attached(pfvf, blktype))
1335 return -ENODEV;
1336
1337 /* Get all the block addresses from which LFs are attached to
1338 * the given pcifunc in num_blkaddr[].
1339 */
1340 for (blkaddr = BLKADDR_RVUM; blkaddr < BLK_COUNT; blkaddr++) {
1341 block = &rvu->hw->block[blkaddr];
1342 if (block->type != blktype)
1343 continue;
1344 if (!is_block_implemented(rvu->hw, blkaddr))
1345 continue;
1346
1347 numlfs = rvu_get_rsrc_mapcount(pfvf, blkaddr);
1348 if (numlfs) {
1349 total_lfs += numlfs;
1350 num_blkaddr[nr_blocks] = blkaddr;
1351 nr_blocks++;
1352 }
1353 }
1354
1355 if (global_slot >= total_lfs)
1356 return -ENODEV;
1357
1358 /* Based on the given global slot number retrieve the
1359 * correct block address out of all attached block
1360 * addresses and slot number in that block.
1361 */
1362 total_lfs = 0;
1363 blkaddr = -ENODEV;
1364 for (i = 0; i < nr_blocks; i++) {
1365 numlfs = rvu_get_rsrc_mapcount(pfvf, num_blkaddr[i]);
1366 total_lfs += numlfs;
1367 if (global_slot < total_lfs) {
1368 blkaddr = num_blkaddr[i];
1369 start_slot = total_lfs - numlfs;
1370 *slot_in_block = global_slot - start_slot;
1371 break;
1372 }
1373 }
1374
1375 return blkaddr;
1376 }
1377
rvu_detach_block(struct rvu * rvu,int pcifunc,int blktype)1378 static void rvu_detach_block(struct rvu *rvu, int pcifunc, int blktype)
1379 {
1380 struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc);
1381 struct rvu_hwinfo *hw = rvu->hw;
1382 struct rvu_block *block;
1383 int slot, lf, num_lfs;
1384 int blkaddr;
1385
1386 blkaddr = rvu_get_blkaddr(rvu, blktype, pcifunc);
1387 if (blkaddr < 0)
1388 return;
1389
1390 if (blktype == BLKTYPE_NIX)
1391 rvu_nix_reset_mac(pfvf, pcifunc);
1392
1393 block = &hw->block[blkaddr];
1394
1395 num_lfs = rvu_get_rsrc_mapcount(pfvf, block->addr);
1396 if (!num_lfs)
1397 return;
1398
1399 for (slot = 0; slot < num_lfs; slot++) {
1400 lf = rvu_lookup_rsrc(rvu, block, pcifunc, slot);
1401 if (lf < 0) /* This should never happen */
1402 continue;
1403
1404 /* Disable the LF */
1405 rvu_write64(rvu, blkaddr, block->lfcfg_reg |
1406 (lf << block->lfshift), 0x00ULL);
1407
1408 /* Update SW maintained mapping info as well */
1409 rvu_update_rsrc_map(rvu, pfvf, block,
1410 pcifunc, lf, false);
1411
1412 /* Free the resource */
1413 rvu_free_rsrc(&block->lf, lf);
1414
1415 /* Clear MSIX vector offset for this LF */
1416 rvu_clear_msix_offset(rvu, pfvf, block, lf);
1417 }
1418 }
1419
rvu_detach_rsrcs(struct rvu * rvu,struct rsrc_detach * detach,u16 pcifunc)1420 static int rvu_detach_rsrcs(struct rvu *rvu, struct rsrc_detach *detach,
1421 u16 pcifunc)
1422 {
1423 struct rvu_hwinfo *hw = rvu->hw;
1424 bool detach_all = true;
1425 struct rvu_block *block;
1426 int blkid;
1427
1428 mutex_lock(&rvu->rsrc_lock);
1429
1430 /* Check for partial resource detach */
1431 if (detach && detach->partial)
1432 detach_all = false;
1433
1434 /* Check for RVU block's LFs attached to this func,
1435 * if so, detach them.
1436 */
1437 for (blkid = 0; blkid < BLK_COUNT; blkid++) {
1438 block = &hw->block[blkid];
1439 if (!block->lf.bmap)
1440 continue;
1441 if (!detach_all && detach) {
1442 if (blkid == BLKADDR_NPA && !detach->npalf)
1443 continue;
1444 else if ((blkid == BLKADDR_NIX0) && !detach->nixlf)
1445 continue;
1446 else if ((blkid == BLKADDR_NIX1) && !detach->nixlf)
1447 continue;
1448 else if ((blkid == BLKADDR_SSO) && !detach->sso)
1449 continue;
1450 else if ((blkid == BLKADDR_SSOW) && !detach->ssow)
1451 continue;
1452 else if ((blkid == BLKADDR_TIM) && !detach->timlfs)
1453 continue;
1454 else if ((blkid == BLKADDR_CPT0) && !detach->cptlfs)
1455 continue;
1456 else if ((blkid == BLKADDR_CPT1) && !detach->cptlfs)
1457 continue;
1458 }
1459 rvu_detach_block(rvu, pcifunc, block->type);
1460 }
1461
1462 mutex_unlock(&rvu->rsrc_lock);
1463 return 0;
1464 }
1465
rvu_mbox_handler_detach_resources(struct rvu * rvu,struct rsrc_detach * detach,struct msg_rsp * rsp)1466 int rvu_mbox_handler_detach_resources(struct rvu *rvu,
1467 struct rsrc_detach *detach,
1468 struct msg_rsp *rsp)
1469 {
1470 return rvu_detach_rsrcs(rvu, detach, detach->hdr.pcifunc);
1471 }
1472
rvu_get_nix_blkaddr(struct rvu * rvu,u16 pcifunc)1473 int rvu_get_nix_blkaddr(struct rvu *rvu, u16 pcifunc)
1474 {
1475 struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc);
1476 int blkaddr = BLKADDR_NIX0, vf;
1477 struct rvu_pfvf *pf;
1478
1479 pf = rvu_get_pfvf(rvu, pcifunc & ~RVU_PFVF_FUNC_MASK);
1480
1481 /* All CGX mapped PFs are set with assigned NIX block during init */
1482 if (is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc))) {
1483 blkaddr = pf->nix_blkaddr;
1484 } else if (is_afvf(pcifunc)) {
1485 vf = pcifunc - 1;
1486 /* Assign NIX based on VF number. All even numbered VFs get
1487 * NIX0 and odd numbered gets NIX1
1488 */
1489 blkaddr = (vf & 1) ? BLKADDR_NIX1 : BLKADDR_NIX0;
1490 /* NIX1 is not present on all silicons */
1491 if (!is_block_implemented(rvu->hw, BLKADDR_NIX1))
1492 blkaddr = BLKADDR_NIX0;
1493 }
1494
1495 /* if SDP1 then the blkaddr is NIX1 */
1496 if (is_sdp_pfvf(pcifunc) && pf->sdp_info->node_id == 1)
1497 blkaddr = BLKADDR_NIX1;
1498
1499 switch (blkaddr) {
1500 case BLKADDR_NIX1:
1501 pfvf->nix_blkaddr = BLKADDR_NIX1;
1502 pfvf->nix_rx_intf = NIX_INTFX_RX(1);
1503 pfvf->nix_tx_intf = NIX_INTFX_TX(1);
1504 break;
1505 case BLKADDR_NIX0:
1506 default:
1507 pfvf->nix_blkaddr = BLKADDR_NIX0;
1508 pfvf->nix_rx_intf = NIX_INTFX_RX(0);
1509 pfvf->nix_tx_intf = NIX_INTFX_TX(0);
1510 break;
1511 }
1512
1513 return pfvf->nix_blkaddr;
1514 }
1515
rvu_get_attach_blkaddr(struct rvu * rvu,int blktype,u16 pcifunc,struct rsrc_attach * attach)1516 static int rvu_get_attach_blkaddr(struct rvu *rvu, int blktype,
1517 u16 pcifunc, struct rsrc_attach *attach)
1518 {
1519 int blkaddr;
1520
1521 switch (blktype) {
1522 case BLKTYPE_NIX:
1523 blkaddr = rvu_get_nix_blkaddr(rvu, pcifunc);
1524 break;
1525 case BLKTYPE_CPT:
1526 if (attach->hdr.ver < RVU_MULTI_BLK_VER)
1527 return rvu_get_blkaddr(rvu, blktype, 0);
1528 blkaddr = attach->cpt_blkaddr ? attach->cpt_blkaddr :
1529 BLKADDR_CPT0;
1530 if (blkaddr != BLKADDR_CPT0 && blkaddr != BLKADDR_CPT1)
1531 return -ENODEV;
1532 break;
1533 default:
1534 return rvu_get_blkaddr(rvu, blktype, 0);
1535 }
1536
1537 if (is_block_implemented(rvu->hw, blkaddr))
1538 return blkaddr;
1539
1540 return -ENODEV;
1541 }
1542
rvu_attach_block(struct rvu * rvu,int pcifunc,int blktype,int num_lfs,struct rsrc_attach * attach)1543 static void rvu_attach_block(struct rvu *rvu, int pcifunc, int blktype,
1544 int num_lfs, struct rsrc_attach *attach)
1545 {
1546 struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc);
1547 struct rvu_hwinfo *hw = rvu->hw;
1548 struct rvu_block *block;
1549 int slot, lf;
1550 int blkaddr;
1551 u64 cfg;
1552
1553 if (!num_lfs)
1554 return;
1555
1556 blkaddr = rvu_get_attach_blkaddr(rvu, blktype, pcifunc, attach);
1557 if (blkaddr < 0)
1558 return;
1559
1560 block = &hw->block[blkaddr];
1561 if (!block->lf.bmap)
1562 return;
1563
1564 for (slot = 0; slot < num_lfs; slot++) {
1565 /* Allocate the resource */
1566 lf = rvu_alloc_rsrc(&block->lf);
1567 if (lf < 0)
1568 return;
1569
1570 cfg = (1ULL << 63) | (pcifunc << 8) | slot;
1571 rvu_write64(rvu, blkaddr, block->lfcfg_reg |
1572 (lf << block->lfshift), cfg);
1573 rvu_update_rsrc_map(rvu, pfvf, block,
1574 pcifunc, lf, true);
1575
1576 /* Set start MSIX vector for this LF within this PF/VF */
1577 rvu_set_msix_offset(rvu, pfvf, block, lf);
1578 }
1579 }
1580
rvu_check_rsrc_availability(struct rvu * rvu,struct rsrc_attach * req,u16 pcifunc)1581 static int rvu_check_rsrc_availability(struct rvu *rvu,
1582 struct rsrc_attach *req, u16 pcifunc)
1583 {
1584 struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc);
1585 int free_lfs, mappedlfs, blkaddr;
1586 struct rvu_hwinfo *hw = rvu->hw;
1587 struct rvu_block *block;
1588
1589 /* Only one NPA LF can be attached */
1590 if (req->npalf && !is_blktype_attached(pfvf, BLKTYPE_NPA)) {
1591 block = &hw->block[BLKADDR_NPA];
1592 free_lfs = rvu_rsrc_free_count(&block->lf);
1593 if (!free_lfs)
1594 goto fail;
1595 } else if (req->npalf) {
1596 dev_err(&rvu->pdev->dev,
1597 "Func 0x%x: Invalid req, already has NPA\n",
1598 pcifunc);
1599 return -EINVAL;
1600 }
1601
1602 /* Only one NIX LF can be attached */
1603 if (req->nixlf && !is_blktype_attached(pfvf, BLKTYPE_NIX)) {
1604 blkaddr = rvu_get_attach_blkaddr(rvu, BLKTYPE_NIX,
1605 pcifunc, req);
1606 if (blkaddr < 0)
1607 return blkaddr;
1608 block = &hw->block[blkaddr];
1609 free_lfs = rvu_rsrc_free_count(&block->lf);
1610 if (!free_lfs)
1611 goto fail;
1612 } else if (req->nixlf) {
1613 dev_err(&rvu->pdev->dev,
1614 "Func 0x%x: Invalid req, already has NIX\n",
1615 pcifunc);
1616 return -EINVAL;
1617 }
1618
1619 if (req->sso) {
1620 block = &hw->block[BLKADDR_SSO];
1621 /* Is request within limits ? */
1622 if (req->sso > block->lf.max) {
1623 dev_err(&rvu->pdev->dev,
1624 "Func 0x%x: Invalid SSO req, %d > max %d\n",
1625 pcifunc, req->sso, block->lf.max);
1626 return -EINVAL;
1627 }
1628 mappedlfs = rvu_get_rsrc_mapcount(pfvf, block->addr);
1629 free_lfs = rvu_rsrc_free_count(&block->lf);
1630 /* Check if additional resources are available */
1631 if (req->sso > mappedlfs &&
1632 ((req->sso - mappedlfs) > free_lfs))
1633 goto fail;
1634 }
1635
1636 if (req->ssow) {
1637 block = &hw->block[BLKADDR_SSOW];
1638 if (req->ssow > block->lf.max) {
1639 dev_err(&rvu->pdev->dev,
1640 "Func 0x%x: Invalid SSOW req, %d > max %d\n",
1641 pcifunc, req->ssow, block->lf.max);
1642 return -EINVAL;
1643 }
1644 mappedlfs = rvu_get_rsrc_mapcount(pfvf, block->addr);
1645 free_lfs = rvu_rsrc_free_count(&block->lf);
1646 if (req->ssow > mappedlfs &&
1647 ((req->ssow - mappedlfs) > free_lfs))
1648 goto fail;
1649 }
1650
1651 if (req->timlfs) {
1652 block = &hw->block[BLKADDR_TIM];
1653 if (req->timlfs > block->lf.max) {
1654 dev_err(&rvu->pdev->dev,
1655 "Func 0x%x: Invalid TIMLF req, %d > max %d\n",
1656 pcifunc, req->timlfs, block->lf.max);
1657 return -EINVAL;
1658 }
1659 mappedlfs = rvu_get_rsrc_mapcount(pfvf, block->addr);
1660 free_lfs = rvu_rsrc_free_count(&block->lf);
1661 if (req->timlfs > mappedlfs &&
1662 ((req->timlfs - mappedlfs) > free_lfs))
1663 goto fail;
1664 }
1665
1666 if (req->cptlfs) {
1667 blkaddr = rvu_get_attach_blkaddr(rvu, BLKTYPE_CPT,
1668 pcifunc, req);
1669 if (blkaddr < 0)
1670 return blkaddr;
1671 block = &hw->block[blkaddr];
1672 if (req->cptlfs > block->lf.max) {
1673 dev_err(&rvu->pdev->dev,
1674 "Func 0x%x: Invalid CPTLF req, %d > max %d\n",
1675 pcifunc, req->cptlfs, block->lf.max);
1676 return -EINVAL;
1677 }
1678 mappedlfs = rvu_get_rsrc_mapcount(pfvf, block->addr);
1679 free_lfs = rvu_rsrc_free_count(&block->lf);
1680 if (req->cptlfs > mappedlfs &&
1681 ((req->cptlfs - mappedlfs) > free_lfs))
1682 goto fail;
1683 }
1684
1685 return 0;
1686
1687 fail:
1688 dev_info(rvu->dev, "Request for %s failed\n", block->name);
1689 return -ENOSPC;
1690 }
1691
rvu_attach_from_same_block(struct rvu * rvu,int blktype,struct rsrc_attach * attach)1692 static bool rvu_attach_from_same_block(struct rvu *rvu, int blktype,
1693 struct rsrc_attach *attach)
1694 {
1695 int blkaddr, num_lfs;
1696
1697 blkaddr = rvu_get_attach_blkaddr(rvu, blktype,
1698 attach->hdr.pcifunc, attach);
1699 if (blkaddr < 0)
1700 return false;
1701
1702 num_lfs = rvu_get_rsrc_mapcount(rvu_get_pfvf(rvu, attach->hdr.pcifunc),
1703 blkaddr);
1704 /* Requester already has LFs from given block ? */
1705 return !!num_lfs;
1706 }
1707
rvu_mbox_handler_attach_resources(struct rvu * rvu,struct rsrc_attach * attach,struct msg_rsp * rsp)1708 int rvu_mbox_handler_attach_resources(struct rvu *rvu,
1709 struct rsrc_attach *attach,
1710 struct msg_rsp *rsp)
1711 {
1712 u16 pcifunc = attach->hdr.pcifunc;
1713 int err;
1714
1715 /* If first request, detach all existing attached resources */
1716 if (!attach->modify)
1717 rvu_detach_rsrcs(rvu, NULL, pcifunc);
1718
1719 mutex_lock(&rvu->rsrc_lock);
1720
1721 /* Check if the request can be accommodated */
1722 err = rvu_check_rsrc_availability(rvu, attach, pcifunc);
1723 if (err)
1724 goto exit;
1725
1726 /* Now attach the requested resources */
1727 if (attach->npalf)
1728 rvu_attach_block(rvu, pcifunc, BLKTYPE_NPA, 1, attach);
1729
1730 if (attach->nixlf)
1731 rvu_attach_block(rvu, pcifunc, BLKTYPE_NIX, 1, attach);
1732
1733 if (attach->sso) {
1734 /* RVU func doesn't know which exact LF or slot is attached
1735 * to it, it always sees as slot 0,1,2. So for a 'modify'
1736 * request, simply detach all existing attached LFs/slots
1737 * and attach a fresh.
1738 */
1739 if (attach->modify)
1740 rvu_detach_block(rvu, pcifunc, BLKTYPE_SSO);
1741 rvu_attach_block(rvu, pcifunc, BLKTYPE_SSO,
1742 attach->sso, attach);
1743 }
1744
1745 if (attach->ssow) {
1746 if (attach->modify)
1747 rvu_detach_block(rvu, pcifunc, BLKTYPE_SSOW);
1748 rvu_attach_block(rvu, pcifunc, BLKTYPE_SSOW,
1749 attach->ssow, attach);
1750 }
1751
1752 if (attach->timlfs) {
1753 if (attach->modify)
1754 rvu_detach_block(rvu, pcifunc, BLKTYPE_TIM);
1755 rvu_attach_block(rvu, pcifunc, BLKTYPE_TIM,
1756 attach->timlfs, attach);
1757 }
1758
1759 if (attach->cptlfs) {
1760 if (attach->modify &&
1761 rvu_attach_from_same_block(rvu, BLKTYPE_CPT, attach))
1762 rvu_detach_block(rvu, pcifunc, BLKTYPE_CPT);
1763 rvu_attach_block(rvu, pcifunc, BLKTYPE_CPT,
1764 attach->cptlfs, attach);
1765 }
1766
1767 exit:
1768 mutex_unlock(&rvu->rsrc_lock);
1769 return err;
1770 }
1771
rvu_get_msix_offset(struct rvu * rvu,struct rvu_pfvf * pfvf,int blkaddr,int lf)1772 static u16 rvu_get_msix_offset(struct rvu *rvu, struct rvu_pfvf *pfvf,
1773 int blkaddr, int lf)
1774 {
1775 u16 vec;
1776
1777 if (lf < 0)
1778 return MSIX_VECTOR_INVALID;
1779
1780 for (vec = 0; vec < pfvf->msix.max; vec++) {
1781 if (pfvf->msix_lfmap[vec] == MSIX_BLKLF(blkaddr, lf))
1782 return vec;
1783 }
1784 return MSIX_VECTOR_INVALID;
1785 }
1786
rvu_set_msix_offset(struct rvu * rvu,struct rvu_pfvf * pfvf,struct rvu_block * block,int lf)1787 static void rvu_set_msix_offset(struct rvu *rvu, struct rvu_pfvf *pfvf,
1788 struct rvu_block *block, int lf)
1789 {
1790 u16 nvecs, vec, offset;
1791 u64 cfg;
1792
1793 cfg = rvu_read64(rvu, block->addr, block->msixcfg_reg |
1794 (lf << block->lfshift));
1795 nvecs = (cfg >> 12) & 0xFF;
1796
1797 /* Check and alloc MSIX vectors, must be contiguous */
1798 if (!rvu_rsrc_check_contig(&pfvf->msix, nvecs))
1799 return;
1800
1801 offset = rvu_alloc_rsrc_contig(&pfvf->msix, nvecs);
1802
1803 /* Config MSIX offset in LF */
1804 rvu_write64(rvu, block->addr, block->msixcfg_reg |
1805 (lf << block->lfshift), (cfg & ~0x7FFULL) | offset);
1806
1807 /* Update the bitmap as well */
1808 for (vec = 0; vec < nvecs; vec++)
1809 pfvf->msix_lfmap[offset + vec] = MSIX_BLKLF(block->addr, lf);
1810 }
1811
rvu_clear_msix_offset(struct rvu * rvu,struct rvu_pfvf * pfvf,struct rvu_block * block,int lf)1812 static void rvu_clear_msix_offset(struct rvu *rvu, struct rvu_pfvf *pfvf,
1813 struct rvu_block *block, int lf)
1814 {
1815 u16 nvecs, vec, offset;
1816 u64 cfg;
1817
1818 cfg = rvu_read64(rvu, block->addr, block->msixcfg_reg |
1819 (lf << block->lfshift));
1820 nvecs = (cfg >> 12) & 0xFF;
1821
1822 /* Clear MSIX offset in LF */
1823 rvu_write64(rvu, block->addr, block->msixcfg_reg |
1824 (lf << block->lfshift), cfg & ~0x7FFULL);
1825
1826 offset = rvu_get_msix_offset(rvu, pfvf, block->addr, lf);
1827
1828 /* Update the mapping */
1829 for (vec = 0; vec < nvecs; vec++)
1830 pfvf->msix_lfmap[offset + vec] = 0;
1831
1832 /* Free the same in MSIX bitmap */
1833 rvu_free_rsrc_contig(&pfvf->msix, nvecs, offset);
1834 }
1835
rvu_mbox_handler_msix_offset(struct rvu * rvu,struct msg_req * req,struct msix_offset_rsp * rsp)1836 int rvu_mbox_handler_msix_offset(struct rvu *rvu, struct msg_req *req,
1837 struct msix_offset_rsp *rsp)
1838 {
1839 struct rvu_hwinfo *hw = rvu->hw;
1840 u16 pcifunc = req->hdr.pcifunc;
1841 struct rvu_pfvf *pfvf;
1842 int lf, slot, blkaddr;
1843
1844 pfvf = rvu_get_pfvf(rvu, pcifunc);
1845 if (!pfvf->msix.bmap)
1846 return 0;
1847
1848 /* Set MSIX offsets for each block's LFs attached to this PF/VF */
1849 lf = rvu_get_lf(rvu, &hw->block[BLKADDR_NPA], pcifunc, 0);
1850 rsp->npa_msixoff = rvu_get_msix_offset(rvu, pfvf, BLKADDR_NPA, lf);
1851
1852 /* Get BLKADDR from which LFs are attached to pcifunc */
1853 blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc);
1854 if (blkaddr < 0) {
1855 rsp->nix_msixoff = MSIX_VECTOR_INVALID;
1856 } else {
1857 lf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0);
1858 rsp->nix_msixoff = rvu_get_msix_offset(rvu, pfvf, blkaddr, lf);
1859 }
1860
1861 rsp->sso = pfvf->sso;
1862 for (slot = 0; slot < rsp->sso; slot++) {
1863 lf = rvu_get_lf(rvu, &hw->block[BLKADDR_SSO], pcifunc, slot);
1864 rsp->sso_msixoff[slot] =
1865 rvu_get_msix_offset(rvu, pfvf, BLKADDR_SSO, lf);
1866 }
1867
1868 rsp->ssow = pfvf->ssow;
1869 for (slot = 0; slot < rsp->ssow; slot++) {
1870 lf = rvu_get_lf(rvu, &hw->block[BLKADDR_SSOW], pcifunc, slot);
1871 rsp->ssow_msixoff[slot] =
1872 rvu_get_msix_offset(rvu, pfvf, BLKADDR_SSOW, lf);
1873 }
1874
1875 rsp->timlfs = pfvf->timlfs;
1876 for (slot = 0; slot < rsp->timlfs; slot++) {
1877 lf = rvu_get_lf(rvu, &hw->block[BLKADDR_TIM], pcifunc, slot);
1878 rsp->timlf_msixoff[slot] =
1879 rvu_get_msix_offset(rvu, pfvf, BLKADDR_TIM, lf);
1880 }
1881
1882 rsp->cptlfs = pfvf->cptlfs;
1883 for (slot = 0; slot < rsp->cptlfs; slot++) {
1884 lf = rvu_get_lf(rvu, &hw->block[BLKADDR_CPT0], pcifunc, slot);
1885 rsp->cptlf_msixoff[slot] =
1886 rvu_get_msix_offset(rvu, pfvf, BLKADDR_CPT0, lf);
1887 }
1888
1889 rsp->cpt1_lfs = pfvf->cpt1_lfs;
1890 for (slot = 0; slot < rsp->cpt1_lfs; slot++) {
1891 lf = rvu_get_lf(rvu, &hw->block[BLKADDR_CPT1], pcifunc, slot);
1892 rsp->cpt1_lf_msixoff[slot] =
1893 rvu_get_msix_offset(rvu, pfvf, BLKADDR_CPT1, lf);
1894 }
1895
1896 return 0;
1897 }
1898
rvu_mbox_handler_free_rsrc_cnt(struct rvu * rvu,struct msg_req * req,struct free_rsrcs_rsp * rsp)1899 int rvu_mbox_handler_free_rsrc_cnt(struct rvu *rvu, struct msg_req *req,
1900 struct free_rsrcs_rsp *rsp)
1901 {
1902 struct rvu_hwinfo *hw = rvu->hw;
1903 struct rvu_block *block;
1904 struct nix_txsch *txsch;
1905 struct nix_hw *nix_hw;
1906
1907 mutex_lock(&rvu->rsrc_lock);
1908
1909 block = &hw->block[BLKADDR_NPA];
1910 rsp->npa = rvu_rsrc_free_count(&block->lf);
1911
1912 block = &hw->block[BLKADDR_NIX0];
1913 rsp->nix = rvu_rsrc_free_count(&block->lf);
1914
1915 block = &hw->block[BLKADDR_NIX1];
1916 rsp->nix1 = rvu_rsrc_free_count(&block->lf);
1917
1918 block = &hw->block[BLKADDR_SSO];
1919 rsp->sso = rvu_rsrc_free_count(&block->lf);
1920
1921 block = &hw->block[BLKADDR_SSOW];
1922 rsp->ssow = rvu_rsrc_free_count(&block->lf);
1923
1924 block = &hw->block[BLKADDR_TIM];
1925 rsp->tim = rvu_rsrc_free_count(&block->lf);
1926
1927 block = &hw->block[BLKADDR_CPT0];
1928 rsp->cpt = rvu_rsrc_free_count(&block->lf);
1929
1930 block = &hw->block[BLKADDR_CPT1];
1931 rsp->cpt1 = rvu_rsrc_free_count(&block->lf);
1932
1933 if (rvu->hw->cap.nix_fixed_txschq_mapping) {
1934 rsp->schq[NIX_TXSCH_LVL_SMQ] = 1;
1935 rsp->schq[NIX_TXSCH_LVL_TL4] = 1;
1936 rsp->schq[NIX_TXSCH_LVL_TL3] = 1;
1937 rsp->schq[NIX_TXSCH_LVL_TL2] = 1;
1938 /* NIX1 */
1939 if (!is_block_implemented(rvu->hw, BLKADDR_NIX1))
1940 goto out;
1941 rsp->schq_nix1[NIX_TXSCH_LVL_SMQ] = 1;
1942 rsp->schq_nix1[NIX_TXSCH_LVL_TL4] = 1;
1943 rsp->schq_nix1[NIX_TXSCH_LVL_TL3] = 1;
1944 rsp->schq_nix1[NIX_TXSCH_LVL_TL2] = 1;
1945 } else {
1946 nix_hw = get_nix_hw(hw, BLKADDR_NIX0);
1947 txsch = &nix_hw->txsch[NIX_TXSCH_LVL_SMQ];
1948 rsp->schq[NIX_TXSCH_LVL_SMQ] =
1949 rvu_rsrc_free_count(&txsch->schq);
1950
1951 txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL4];
1952 rsp->schq[NIX_TXSCH_LVL_TL4] =
1953 rvu_rsrc_free_count(&txsch->schq);
1954
1955 txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL3];
1956 rsp->schq[NIX_TXSCH_LVL_TL3] =
1957 rvu_rsrc_free_count(&txsch->schq);
1958
1959 txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL2];
1960 rsp->schq[NIX_TXSCH_LVL_TL2] =
1961 rvu_rsrc_free_count(&txsch->schq);
1962
1963 if (!is_block_implemented(rvu->hw, BLKADDR_NIX1))
1964 goto out;
1965
1966 nix_hw = get_nix_hw(hw, BLKADDR_NIX1);
1967 txsch = &nix_hw->txsch[NIX_TXSCH_LVL_SMQ];
1968 rsp->schq_nix1[NIX_TXSCH_LVL_SMQ] =
1969 rvu_rsrc_free_count(&txsch->schq);
1970
1971 txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL4];
1972 rsp->schq_nix1[NIX_TXSCH_LVL_TL4] =
1973 rvu_rsrc_free_count(&txsch->schq);
1974
1975 txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL3];
1976 rsp->schq_nix1[NIX_TXSCH_LVL_TL3] =
1977 rvu_rsrc_free_count(&txsch->schq);
1978
1979 txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL2];
1980 rsp->schq_nix1[NIX_TXSCH_LVL_TL2] =
1981 rvu_rsrc_free_count(&txsch->schq);
1982 }
1983
1984 rsp->schq_nix1[NIX_TXSCH_LVL_TL1] = 1;
1985 out:
1986 rsp->schq[NIX_TXSCH_LVL_TL1] = 1;
1987 mutex_unlock(&rvu->rsrc_lock);
1988
1989 return 0;
1990 }
1991
rvu_mbox_handler_vf_flr(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)1992 int rvu_mbox_handler_vf_flr(struct rvu *rvu, struct msg_req *req,
1993 struct msg_rsp *rsp)
1994 {
1995 u16 pcifunc = req->hdr.pcifunc;
1996 u16 vf, numvfs;
1997 u64 cfg;
1998
1999 vf = pcifunc & RVU_PFVF_FUNC_MASK;
2000 cfg = rvu_read64(rvu, BLKADDR_RVUM,
2001 RVU_PRIV_PFX_CFG(rvu_get_pf(pcifunc)));
2002 numvfs = (cfg >> 12) & 0xFF;
2003
2004 if (vf && vf <= numvfs)
2005 __rvu_flr_handler(rvu, pcifunc);
2006 else
2007 return RVU_INVALID_VF_ID;
2008
2009 return 0;
2010 }
2011
rvu_mbox_handler_get_hw_cap(struct rvu * rvu,struct msg_req * req,struct get_hw_cap_rsp * rsp)2012 int rvu_mbox_handler_get_hw_cap(struct rvu *rvu, struct msg_req *req,
2013 struct get_hw_cap_rsp *rsp)
2014 {
2015 struct rvu_hwinfo *hw = rvu->hw;
2016
2017 rsp->nix_fixed_txschq_mapping = hw->cap.nix_fixed_txschq_mapping;
2018 rsp->nix_shaping = hw->cap.nix_shaping;
2019 rsp->npc_hash_extract = hw->cap.npc_hash_extract;
2020
2021 return 0;
2022 }
2023
rvu_mbox_handler_set_vf_perm(struct rvu * rvu,struct set_vf_perm * req,struct msg_rsp * rsp)2024 int rvu_mbox_handler_set_vf_perm(struct rvu *rvu, struct set_vf_perm *req,
2025 struct msg_rsp *rsp)
2026 {
2027 struct rvu_hwinfo *hw = rvu->hw;
2028 u16 pcifunc = req->hdr.pcifunc;
2029 struct rvu_pfvf *pfvf;
2030 int blkaddr, nixlf;
2031 u16 target;
2032
2033 /* Only PF can add VF permissions */
2034 if ((pcifunc & RVU_PFVF_FUNC_MASK) || is_afvf(pcifunc))
2035 return -EOPNOTSUPP;
2036
2037 target = (pcifunc & ~RVU_PFVF_FUNC_MASK) | (req->vf + 1);
2038 pfvf = rvu_get_pfvf(rvu, target);
2039
2040 if (req->flags & RESET_VF_PERM) {
2041 pfvf->flags &= RVU_CLEAR_VF_PERM;
2042 } else if (test_bit(PF_SET_VF_TRUSTED, &pfvf->flags) ^
2043 (req->flags & VF_TRUSTED)) {
2044 change_bit(PF_SET_VF_TRUSTED, &pfvf->flags);
2045 /* disable multicast and promisc entries */
2046 if (!test_bit(PF_SET_VF_TRUSTED, &pfvf->flags)) {
2047 blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, target);
2048 if (blkaddr < 0)
2049 return 0;
2050 nixlf = rvu_get_lf(rvu, &hw->block[blkaddr],
2051 target, 0);
2052 if (nixlf < 0)
2053 return 0;
2054 npc_enadis_default_mce_entry(rvu, target, nixlf,
2055 NIXLF_ALLMULTI_ENTRY,
2056 false);
2057 npc_enadis_default_mce_entry(rvu, target, nixlf,
2058 NIXLF_PROMISC_ENTRY,
2059 false);
2060 }
2061 }
2062
2063 return 0;
2064 }
2065
rvu_process_mbox_msg(struct otx2_mbox * mbox,int devid,struct mbox_msghdr * req)2066 static int rvu_process_mbox_msg(struct otx2_mbox *mbox, int devid,
2067 struct mbox_msghdr *req)
2068 {
2069 struct rvu *rvu = pci_get_drvdata(mbox->pdev);
2070
2071 /* Check if valid, if not reply with a invalid msg */
2072 if (req->sig != OTX2_MBOX_REQ_SIG)
2073 goto bad_message;
2074
2075 switch (req->id) {
2076 #define M(_name, _id, _fn_name, _req_type, _rsp_type) \
2077 case _id: { \
2078 struct _rsp_type *rsp; \
2079 int err; \
2080 \
2081 rsp = (struct _rsp_type *)otx2_mbox_alloc_msg( \
2082 mbox, devid, \
2083 sizeof(struct _rsp_type)); \
2084 /* some handlers should complete even if reply */ \
2085 /* could not be allocated */ \
2086 if (!rsp && \
2087 _id != MBOX_MSG_DETACH_RESOURCES && \
2088 _id != MBOX_MSG_NIX_TXSCH_FREE && \
2089 _id != MBOX_MSG_VF_FLR) \
2090 return -ENOMEM; \
2091 if (rsp) { \
2092 rsp->hdr.id = _id; \
2093 rsp->hdr.sig = OTX2_MBOX_RSP_SIG; \
2094 rsp->hdr.pcifunc = req->pcifunc; \
2095 rsp->hdr.rc = 0; \
2096 } \
2097 \
2098 err = rvu_mbox_handler_ ## _fn_name(rvu, \
2099 (struct _req_type *)req, \
2100 rsp); \
2101 if (rsp && err) \
2102 rsp->hdr.rc = err; \
2103 \
2104 trace_otx2_msg_process(mbox->pdev, _id, err); \
2105 return rsp ? err : -ENOMEM; \
2106 }
2107 MBOX_MESSAGES
2108 #undef M
2109
2110 bad_message:
2111 default:
2112 otx2_reply_invalid_msg(mbox, devid, req->pcifunc, req->id);
2113 return -ENODEV;
2114 }
2115 }
2116
__rvu_mbox_handler(struct rvu_work * mwork,int type,bool poll)2117 static void __rvu_mbox_handler(struct rvu_work *mwork, int type, bool poll)
2118 {
2119 struct rvu *rvu = mwork->rvu;
2120 int offset, err, id, devid;
2121 struct otx2_mbox_dev *mdev;
2122 struct mbox_hdr *req_hdr;
2123 struct mbox_msghdr *msg;
2124 struct mbox_wq_info *mw;
2125 struct otx2_mbox *mbox;
2126
2127 switch (type) {
2128 case TYPE_AFPF:
2129 mw = &rvu->afpf_wq_info;
2130 break;
2131 case TYPE_AFVF:
2132 mw = &rvu->afvf_wq_info;
2133 break;
2134 default:
2135 return;
2136 }
2137
2138 devid = mwork - mw->mbox_wrk;
2139 mbox = &mw->mbox;
2140 mdev = &mbox->dev[devid];
2141
2142 /* Process received mbox messages */
2143 req_hdr = mdev->mbase + mbox->rx_start;
2144 if (mw->mbox_wrk[devid].num_msgs == 0)
2145 return;
2146
2147 offset = mbox->rx_start + ALIGN(sizeof(*req_hdr), MBOX_MSG_ALIGN);
2148
2149 for (id = 0; id < mw->mbox_wrk[devid].num_msgs; id++) {
2150 msg = mdev->mbase + offset;
2151
2152 /* Set which PF/VF sent this message based on mbox IRQ */
2153 switch (type) {
2154 case TYPE_AFPF:
2155 msg->pcifunc &=
2156 ~(RVU_PFVF_PF_MASK << RVU_PFVF_PF_SHIFT);
2157 msg->pcifunc |= (devid << RVU_PFVF_PF_SHIFT);
2158 break;
2159 case TYPE_AFVF:
2160 msg->pcifunc &=
2161 ~(RVU_PFVF_FUNC_MASK << RVU_PFVF_FUNC_SHIFT);
2162 msg->pcifunc |= (devid << RVU_PFVF_FUNC_SHIFT) + 1;
2163 break;
2164 }
2165
2166 err = rvu_process_mbox_msg(mbox, devid, msg);
2167 if (!err) {
2168 offset = mbox->rx_start + msg->next_msgoff;
2169 continue;
2170 }
2171
2172 if (msg->pcifunc & RVU_PFVF_FUNC_MASK)
2173 dev_warn(rvu->dev, "Error %d when processing message %s (0x%x) from PF%d:VF%d\n",
2174 err, otx2_mbox_id2name(msg->id),
2175 msg->id, rvu_get_pf(msg->pcifunc),
2176 (msg->pcifunc & RVU_PFVF_FUNC_MASK) - 1);
2177 else
2178 dev_warn(rvu->dev, "Error %d when processing message %s (0x%x) from PF%d\n",
2179 err, otx2_mbox_id2name(msg->id),
2180 msg->id, devid);
2181 }
2182 mw->mbox_wrk[devid].num_msgs = 0;
2183
2184 if (poll)
2185 otx2_mbox_wait_for_zero(mbox, devid);
2186
2187 /* Send mbox responses to VF/PF */
2188 otx2_mbox_msg_send(mbox, devid);
2189 }
2190
rvu_afpf_mbox_handler(struct work_struct * work)2191 static inline void rvu_afpf_mbox_handler(struct work_struct *work)
2192 {
2193 struct rvu_work *mwork = container_of(work, struct rvu_work, work);
2194 struct rvu *rvu = mwork->rvu;
2195
2196 mutex_lock(&rvu->mbox_lock);
2197 __rvu_mbox_handler(mwork, TYPE_AFPF, true);
2198 mutex_unlock(&rvu->mbox_lock);
2199 }
2200
rvu_afvf_mbox_handler(struct work_struct * work)2201 static inline void rvu_afvf_mbox_handler(struct work_struct *work)
2202 {
2203 struct rvu_work *mwork = container_of(work, struct rvu_work, work);
2204
2205 __rvu_mbox_handler(mwork, TYPE_AFVF, false);
2206 }
2207
__rvu_mbox_up_handler(struct rvu_work * mwork,int type)2208 static void __rvu_mbox_up_handler(struct rvu_work *mwork, int type)
2209 {
2210 struct rvu *rvu = mwork->rvu;
2211 struct otx2_mbox_dev *mdev;
2212 struct mbox_hdr *rsp_hdr;
2213 struct mbox_msghdr *msg;
2214 struct mbox_wq_info *mw;
2215 struct otx2_mbox *mbox;
2216 int offset, id, devid;
2217
2218 switch (type) {
2219 case TYPE_AFPF:
2220 mw = &rvu->afpf_wq_info;
2221 break;
2222 case TYPE_AFVF:
2223 mw = &rvu->afvf_wq_info;
2224 break;
2225 default:
2226 return;
2227 }
2228
2229 devid = mwork - mw->mbox_wrk_up;
2230 mbox = &mw->mbox_up;
2231 mdev = &mbox->dev[devid];
2232
2233 rsp_hdr = mdev->mbase + mbox->rx_start;
2234 if (mw->mbox_wrk_up[devid].up_num_msgs == 0) {
2235 dev_warn(rvu->dev, "mbox up handler: num_msgs = 0\n");
2236 return;
2237 }
2238
2239 offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr), MBOX_MSG_ALIGN);
2240
2241 for (id = 0; id < mw->mbox_wrk_up[devid].up_num_msgs; id++) {
2242 msg = mdev->mbase + offset;
2243
2244 if (msg->id >= MBOX_MSG_MAX) {
2245 dev_err(rvu->dev,
2246 "Mbox msg with unknown ID 0x%x\n", msg->id);
2247 goto end;
2248 }
2249
2250 if (msg->sig != OTX2_MBOX_RSP_SIG) {
2251 dev_err(rvu->dev,
2252 "Mbox msg with wrong signature %x, ID 0x%x\n",
2253 msg->sig, msg->id);
2254 goto end;
2255 }
2256
2257 switch (msg->id) {
2258 case MBOX_MSG_CGX_LINK_EVENT:
2259 break;
2260 default:
2261 if (msg->rc)
2262 dev_err(rvu->dev,
2263 "Mbox msg response has err %d, ID 0x%x\n",
2264 msg->rc, msg->id);
2265 break;
2266 }
2267 end:
2268 offset = mbox->rx_start + msg->next_msgoff;
2269 mdev->msgs_acked++;
2270 }
2271 mw->mbox_wrk_up[devid].up_num_msgs = 0;
2272
2273 otx2_mbox_reset(mbox, devid);
2274 }
2275
rvu_afpf_mbox_up_handler(struct work_struct * work)2276 static inline void rvu_afpf_mbox_up_handler(struct work_struct *work)
2277 {
2278 struct rvu_work *mwork = container_of(work, struct rvu_work, work);
2279
2280 __rvu_mbox_up_handler(mwork, TYPE_AFPF);
2281 }
2282
rvu_afvf_mbox_up_handler(struct work_struct * work)2283 static inline void rvu_afvf_mbox_up_handler(struct work_struct *work)
2284 {
2285 struct rvu_work *mwork = container_of(work, struct rvu_work, work);
2286
2287 __rvu_mbox_up_handler(mwork, TYPE_AFVF);
2288 }
2289
rvu_get_mbox_regions(struct rvu * rvu,void ** mbox_addr,int num,int type,unsigned long * pf_bmap)2290 static int rvu_get_mbox_regions(struct rvu *rvu, void **mbox_addr,
2291 int num, int type, unsigned long *pf_bmap)
2292 {
2293 struct rvu_hwinfo *hw = rvu->hw;
2294 int region;
2295 u64 bar4;
2296
2297 /* For cn10k platform VF mailbox regions of a PF follows after the
2298 * PF <-> AF mailbox region. Whereas for Octeontx2 it is read from
2299 * RVU_PF_VF_BAR4_ADDR register.
2300 */
2301 if (type == TYPE_AFVF) {
2302 for (region = 0; region < num; region++) {
2303 if (!test_bit(region, pf_bmap))
2304 continue;
2305
2306 if (hw->cap.per_pf_mbox_regs) {
2307 bar4 = rvu_read64(rvu, BLKADDR_RVUM,
2308 RVU_AF_PFX_BAR4_ADDR(0)) +
2309 MBOX_SIZE;
2310 bar4 += region * MBOX_SIZE;
2311 } else {
2312 bar4 = rvupf_read64(rvu, RVU_PF_VF_BAR4_ADDR);
2313 bar4 += region * MBOX_SIZE;
2314 }
2315 mbox_addr[region] = (void *)ioremap_wc(bar4, MBOX_SIZE);
2316 if (!mbox_addr[region])
2317 goto error;
2318 }
2319 return 0;
2320 }
2321
2322 /* For cn10k platform AF <-> PF mailbox region of a PF is read from per
2323 * PF registers. Whereas for Octeontx2 it is read from
2324 * RVU_AF_PF_BAR4_ADDR register.
2325 */
2326 for (region = 0; region < num; region++) {
2327 if (!test_bit(region, pf_bmap))
2328 continue;
2329
2330 if (hw->cap.per_pf_mbox_regs) {
2331 bar4 = rvu_read64(rvu, BLKADDR_RVUM,
2332 RVU_AF_PFX_BAR4_ADDR(region));
2333 } else {
2334 bar4 = rvu_read64(rvu, BLKADDR_RVUM,
2335 RVU_AF_PF_BAR4_ADDR);
2336 bar4 += region * MBOX_SIZE;
2337 }
2338 mbox_addr[region] = (void *)ioremap_wc(bar4, MBOX_SIZE);
2339 if (!mbox_addr[region])
2340 goto error;
2341 }
2342 return 0;
2343
2344 error:
2345 while (region--)
2346 iounmap((void __iomem *)mbox_addr[region]);
2347 return -ENOMEM;
2348 }
2349
rvu_mbox_init(struct rvu * rvu,struct mbox_wq_info * mw,int type,int num,void (mbox_handler)(struct work_struct *),void (mbox_up_handler)(struct work_struct *))2350 static int rvu_mbox_init(struct rvu *rvu, struct mbox_wq_info *mw,
2351 int type, int num,
2352 void (mbox_handler)(struct work_struct *),
2353 void (mbox_up_handler)(struct work_struct *))
2354 {
2355 int err = -EINVAL, i, dir, dir_up;
2356 void __iomem *reg_base;
2357 struct rvu_work *mwork;
2358 unsigned long *pf_bmap;
2359 void **mbox_regions;
2360 const char *name;
2361 u64 cfg;
2362
2363 pf_bmap = bitmap_zalloc(num, GFP_KERNEL);
2364 if (!pf_bmap)
2365 return -ENOMEM;
2366
2367 /* RVU VFs */
2368 if (type == TYPE_AFVF)
2369 bitmap_set(pf_bmap, 0, num);
2370
2371 if (type == TYPE_AFPF) {
2372 /* Mark enabled PFs in bitmap */
2373 for (i = 0; i < num; i++) {
2374 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(i));
2375 if (cfg & BIT_ULL(20))
2376 set_bit(i, pf_bmap);
2377 }
2378 }
2379
2380 mutex_init(&rvu->mbox_lock);
2381
2382 mbox_regions = kcalloc(num, sizeof(void *), GFP_KERNEL);
2383 if (!mbox_regions) {
2384 err = -ENOMEM;
2385 goto free_bitmap;
2386 }
2387
2388 switch (type) {
2389 case TYPE_AFPF:
2390 name = "rvu_afpf_mailbox";
2391 dir = MBOX_DIR_AFPF;
2392 dir_up = MBOX_DIR_AFPF_UP;
2393 reg_base = rvu->afreg_base;
2394 err = rvu_get_mbox_regions(rvu, mbox_regions, num, TYPE_AFPF, pf_bmap);
2395 if (err)
2396 goto free_regions;
2397 break;
2398 case TYPE_AFVF:
2399 name = "rvu_afvf_mailbox";
2400 dir = MBOX_DIR_PFVF;
2401 dir_up = MBOX_DIR_PFVF_UP;
2402 reg_base = rvu->pfreg_base;
2403 err = rvu_get_mbox_regions(rvu, mbox_regions, num, TYPE_AFVF, pf_bmap);
2404 if (err)
2405 goto free_regions;
2406 break;
2407 default:
2408 goto free_regions;
2409 }
2410
2411 mw->mbox_wq = alloc_workqueue(name,
2412 WQ_UNBOUND | WQ_HIGHPRI | WQ_MEM_RECLAIM,
2413 num);
2414 if (!mw->mbox_wq) {
2415 err = -ENOMEM;
2416 goto unmap_regions;
2417 }
2418
2419 mw->mbox_wrk = devm_kcalloc(rvu->dev, num,
2420 sizeof(struct rvu_work), GFP_KERNEL);
2421 if (!mw->mbox_wrk) {
2422 err = -ENOMEM;
2423 goto exit;
2424 }
2425
2426 mw->mbox_wrk_up = devm_kcalloc(rvu->dev, num,
2427 sizeof(struct rvu_work), GFP_KERNEL);
2428 if (!mw->mbox_wrk_up) {
2429 err = -ENOMEM;
2430 goto exit;
2431 }
2432
2433 err = otx2_mbox_regions_init(&mw->mbox, mbox_regions, rvu->pdev,
2434 reg_base, dir, num, pf_bmap);
2435 if (err)
2436 goto exit;
2437
2438 err = otx2_mbox_regions_init(&mw->mbox_up, mbox_regions, rvu->pdev,
2439 reg_base, dir_up, num, pf_bmap);
2440 if (err)
2441 goto exit;
2442
2443 for (i = 0; i < num; i++) {
2444 if (!test_bit(i, pf_bmap))
2445 continue;
2446
2447 mwork = &mw->mbox_wrk[i];
2448 mwork->rvu = rvu;
2449 INIT_WORK(&mwork->work, mbox_handler);
2450
2451 mwork = &mw->mbox_wrk_up[i];
2452 mwork->rvu = rvu;
2453 INIT_WORK(&mwork->work, mbox_up_handler);
2454 }
2455 goto free_regions;
2456
2457 exit:
2458 destroy_workqueue(mw->mbox_wq);
2459 unmap_regions:
2460 while (num--)
2461 iounmap((void __iomem *)mbox_regions[num]);
2462 free_regions:
2463 kfree(mbox_regions);
2464 free_bitmap:
2465 bitmap_free(pf_bmap);
2466 return err;
2467 }
2468
rvu_mbox_destroy(struct mbox_wq_info * mw)2469 static void rvu_mbox_destroy(struct mbox_wq_info *mw)
2470 {
2471 struct otx2_mbox *mbox = &mw->mbox;
2472 struct otx2_mbox_dev *mdev;
2473 int devid;
2474
2475 if (mw->mbox_wq) {
2476 destroy_workqueue(mw->mbox_wq);
2477 mw->mbox_wq = NULL;
2478 }
2479
2480 for (devid = 0; devid < mbox->ndevs; devid++) {
2481 mdev = &mbox->dev[devid];
2482 if (mdev->hwbase)
2483 iounmap((void __iomem *)mdev->hwbase);
2484 }
2485
2486 otx2_mbox_destroy(&mw->mbox);
2487 otx2_mbox_destroy(&mw->mbox_up);
2488 }
2489
rvu_queue_work(struct mbox_wq_info * mw,int first,int mdevs,u64 intr)2490 static void rvu_queue_work(struct mbox_wq_info *mw, int first,
2491 int mdevs, u64 intr)
2492 {
2493 struct otx2_mbox_dev *mdev;
2494 struct otx2_mbox *mbox;
2495 struct mbox_hdr *hdr;
2496 int i;
2497
2498 for (i = first; i < mdevs; i++) {
2499 /* start from 0 */
2500 if (!(intr & BIT_ULL(i - first)))
2501 continue;
2502
2503 mbox = &mw->mbox;
2504 mdev = &mbox->dev[i];
2505 hdr = mdev->mbase + mbox->rx_start;
2506
2507 /*The hdr->num_msgs is set to zero immediately in the interrupt
2508 * handler to ensure that it holds a correct value next time
2509 * when the interrupt handler is called.
2510 * pf->mbox.num_msgs holds the data for use in pfaf_mbox_handler
2511 * pf>mbox.up_num_msgs holds the data for use in
2512 * pfaf_mbox_up_handler.
2513 */
2514
2515 if (hdr->num_msgs) {
2516 mw->mbox_wrk[i].num_msgs = hdr->num_msgs;
2517 hdr->num_msgs = 0;
2518 queue_work(mw->mbox_wq, &mw->mbox_wrk[i].work);
2519 }
2520 mbox = &mw->mbox_up;
2521 mdev = &mbox->dev[i];
2522 hdr = mdev->mbase + mbox->rx_start;
2523 if (hdr->num_msgs) {
2524 mw->mbox_wrk_up[i].up_num_msgs = hdr->num_msgs;
2525 hdr->num_msgs = 0;
2526 queue_work(mw->mbox_wq, &mw->mbox_wrk_up[i].work);
2527 }
2528 }
2529 }
2530
rvu_mbox_pf_intr_handler(int irq,void * rvu_irq)2531 static irqreturn_t rvu_mbox_pf_intr_handler(int irq, void *rvu_irq)
2532 {
2533 struct rvu *rvu = (struct rvu *)rvu_irq;
2534 u64 intr;
2535
2536 intr = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT);
2537 /* Clear interrupts */
2538 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT, intr);
2539 if (intr)
2540 trace_otx2_msg_interrupt(rvu->pdev, "PF(s) to AF", intr);
2541
2542 /* Sync with mbox memory region */
2543 rmb();
2544
2545 rvu_queue_work(&rvu->afpf_wq_info, 0, rvu->hw->total_pfs, intr);
2546
2547 return IRQ_HANDLED;
2548 }
2549
rvu_mbox_intr_handler(int irq,void * rvu_irq)2550 static irqreturn_t rvu_mbox_intr_handler(int irq, void *rvu_irq)
2551 {
2552 struct rvu *rvu = (struct rvu *)rvu_irq;
2553 int vfs = rvu->vfs;
2554 u64 intr;
2555
2556 /* Sync with mbox memory region */
2557 rmb();
2558
2559 /* Handle VF interrupts */
2560 if (vfs > 64) {
2561 intr = rvupf_read64(rvu, RVU_PF_VFPF_MBOX_INTX(1));
2562 rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INTX(1), intr);
2563
2564 rvu_queue_work(&rvu->afvf_wq_info, 64, vfs, intr);
2565 vfs -= 64;
2566 }
2567
2568 intr = rvupf_read64(rvu, RVU_PF_VFPF_MBOX_INTX(0));
2569 rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INTX(0), intr);
2570 if (intr)
2571 trace_otx2_msg_interrupt(rvu->pdev, "VF(s) to AF", intr);
2572
2573 rvu_queue_work(&rvu->afvf_wq_info, 0, vfs, intr);
2574
2575 return IRQ_HANDLED;
2576 }
2577
rvu_enable_mbox_intr(struct rvu * rvu)2578 static void rvu_enable_mbox_intr(struct rvu *rvu)
2579 {
2580 struct rvu_hwinfo *hw = rvu->hw;
2581
2582 /* Clear spurious irqs, if any */
2583 rvu_write64(rvu, BLKADDR_RVUM,
2584 RVU_AF_PFAF_MBOX_INT, INTR_MASK(hw->total_pfs));
2585
2586 /* Enable mailbox interrupt for all PFs except PF0 i.e AF itself */
2587 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT_ENA_W1S,
2588 INTR_MASK(hw->total_pfs) & ~1ULL);
2589 }
2590
rvu_blklf_teardown(struct rvu * rvu,u16 pcifunc,u8 blkaddr)2591 static void rvu_blklf_teardown(struct rvu *rvu, u16 pcifunc, u8 blkaddr)
2592 {
2593 struct rvu_block *block;
2594 int slot, lf, num_lfs;
2595 int err;
2596
2597 block = &rvu->hw->block[blkaddr];
2598 num_lfs = rvu_get_rsrc_mapcount(rvu_get_pfvf(rvu, pcifunc),
2599 block->addr);
2600 if (!num_lfs)
2601 return;
2602 for (slot = 0; slot < num_lfs; slot++) {
2603 lf = rvu_get_lf(rvu, block, pcifunc, slot);
2604 if (lf < 0)
2605 continue;
2606
2607 /* Cleanup LF and reset it */
2608 if (block->addr == BLKADDR_NIX0 || block->addr == BLKADDR_NIX1)
2609 rvu_nix_lf_teardown(rvu, pcifunc, block->addr, lf);
2610 else if (block->addr == BLKADDR_NPA)
2611 rvu_npa_lf_teardown(rvu, pcifunc, lf);
2612 else if ((block->addr == BLKADDR_CPT0) ||
2613 (block->addr == BLKADDR_CPT1))
2614 rvu_cpt_lf_teardown(rvu, pcifunc, block->addr, lf,
2615 slot);
2616
2617 err = rvu_lf_reset(rvu, block, lf);
2618 if (err) {
2619 dev_err(rvu->dev, "Failed to reset blkaddr %d LF%d\n",
2620 block->addr, lf);
2621 }
2622 }
2623 }
2624
__rvu_flr_handler(struct rvu * rvu,u16 pcifunc)2625 static void __rvu_flr_handler(struct rvu *rvu, u16 pcifunc)
2626 {
2627 if (rvu_npc_exact_has_match_table(rvu))
2628 rvu_npc_exact_reset(rvu, pcifunc);
2629
2630 mutex_lock(&rvu->flr_lock);
2631 /* Reset order should reflect inter-block dependencies:
2632 * 1. Reset any packet/work sources (NIX, CPT, TIM)
2633 * 2. Flush and reset SSO/SSOW
2634 * 3. Cleanup pools (NPA)
2635 */
2636 rvu_blklf_teardown(rvu, pcifunc, BLKADDR_NIX0);
2637 rvu_blklf_teardown(rvu, pcifunc, BLKADDR_NIX1);
2638 rvu_blklf_teardown(rvu, pcifunc, BLKADDR_CPT0);
2639 rvu_blklf_teardown(rvu, pcifunc, BLKADDR_CPT1);
2640 rvu_blklf_teardown(rvu, pcifunc, BLKADDR_TIM);
2641 rvu_blklf_teardown(rvu, pcifunc, BLKADDR_SSOW);
2642 rvu_blklf_teardown(rvu, pcifunc, BLKADDR_SSO);
2643 rvu_blklf_teardown(rvu, pcifunc, BLKADDR_NPA);
2644 rvu_reset_lmt_map_tbl(rvu, pcifunc);
2645 rvu_detach_rsrcs(rvu, NULL, pcifunc);
2646 /* In scenarios where PF/VF drivers detach NIXLF without freeing MCAM
2647 * entries, check and free the MCAM entries explicitly to avoid leak.
2648 * Since LF is detached use LF number as -1.
2649 */
2650 rvu_npc_free_mcam_entries(rvu, pcifunc, -1);
2651 rvu_mac_reset(rvu, pcifunc);
2652
2653 if (rvu->mcs_blk_cnt)
2654 rvu_mcs_flr_handler(rvu, pcifunc);
2655
2656 mutex_unlock(&rvu->flr_lock);
2657 }
2658
rvu_afvf_flr_handler(struct rvu * rvu,int vf)2659 static void rvu_afvf_flr_handler(struct rvu *rvu, int vf)
2660 {
2661 int reg = 0;
2662
2663 /* pcifunc = 0(PF0) | (vf + 1) */
2664 __rvu_flr_handler(rvu, vf + 1);
2665
2666 if (vf >= 64) {
2667 reg = 1;
2668 vf = vf - 64;
2669 }
2670
2671 /* Signal FLR finish and enable IRQ */
2672 rvupf_write64(rvu, RVU_PF_VFTRPENDX(reg), BIT_ULL(vf));
2673 rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1SX(reg), BIT_ULL(vf));
2674 }
2675
rvu_flr_handler(struct work_struct * work)2676 static void rvu_flr_handler(struct work_struct *work)
2677 {
2678 struct rvu_work *flrwork = container_of(work, struct rvu_work, work);
2679 struct rvu *rvu = flrwork->rvu;
2680 u16 pcifunc, numvfs, vf;
2681 u64 cfg;
2682 int pf;
2683
2684 pf = flrwork - rvu->flr_wrk;
2685 if (pf >= rvu->hw->total_pfs) {
2686 rvu_afvf_flr_handler(rvu, pf - rvu->hw->total_pfs);
2687 return;
2688 }
2689
2690 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf));
2691 numvfs = (cfg >> 12) & 0xFF;
2692 pcifunc = pf << RVU_PFVF_PF_SHIFT;
2693
2694 for (vf = 0; vf < numvfs; vf++)
2695 __rvu_flr_handler(rvu, (pcifunc | (vf + 1)));
2696
2697 __rvu_flr_handler(rvu, pcifunc);
2698
2699 /* Signal FLR finish */
2700 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFTRPEND, BIT_ULL(pf));
2701
2702 /* Enable interrupt */
2703 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT_ENA_W1S, BIT_ULL(pf));
2704 }
2705
rvu_afvf_queue_flr_work(struct rvu * rvu,int start_vf,int numvfs)2706 static void rvu_afvf_queue_flr_work(struct rvu *rvu, int start_vf, int numvfs)
2707 {
2708 int dev, vf, reg = 0;
2709 u64 intr;
2710
2711 if (start_vf >= 64)
2712 reg = 1;
2713
2714 intr = rvupf_read64(rvu, RVU_PF_VFFLR_INTX(reg));
2715 if (!intr)
2716 return;
2717
2718 for (vf = 0; vf < numvfs; vf++) {
2719 if (!(intr & BIT_ULL(vf)))
2720 continue;
2721 /* Clear and disable the interrupt */
2722 rvupf_write64(rvu, RVU_PF_VFFLR_INTX(reg), BIT_ULL(vf));
2723 rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1CX(reg), BIT_ULL(vf));
2724
2725 dev = vf + start_vf + rvu->hw->total_pfs;
2726 queue_work(rvu->flr_wq, &rvu->flr_wrk[dev].work);
2727 }
2728 }
2729
rvu_flr_intr_handler(int irq,void * rvu_irq)2730 static irqreturn_t rvu_flr_intr_handler(int irq, void *rvu_irq)
2731 {
2732 struct rvu *rvu = (struct rvu *)rvu_irq;
2733 u64 intr;
2734 u8 pf;
2735
2736 intr = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT);
2737 if (!intr)
2738 goto afvf_flr;
2739
2740 for (pf = 0; pf < rvu->hw->total_pfs; pf++) {
2741 if (intr & (1ULL << pf)) {
2742 /* clear interrupt */
2743 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT,
2744 BIT_ULL(pf));
2745 /* Disable the interrupt */
2746 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT_ENA_W1C,
2747 BIT_ULL(pf));
2748 /* PF is already dead do only AF related operations */
2749 queue_work(rvu->flr_wq, &rvu->flr_wrk[pf].work);
2750 }
2751 }
2752
2753 afvf_flr:
2754 rvu_afvf_queue_flr_work(rvu, 0, 64);
2755 if (rvu->vfs > 64)
2756 rvu_afvf_queue_flr_work(rvu, 64, rvu->vfs - 64);
2757
2758 return IRQ_HANDLED;
2759 }
2760
rvu_me_handle_vfset(struct rvu * rvu,int idx,u64 intr)2761 static void rvu_me_handle_vfset(struct rvu *rvu, int idx, u64 intr)
2762 {
2763 int vf;
2764
2765 /* Nothing to be done here other than clearing the
2766 * TRPEND bit.
2767 */
2768 for (vf = 0; vf < 64; vf++) {
2769 if (intr & (1ULL << vf)) {
2770 /* clear the trpend due to ME(master enable) */
2771 rvupf_write64(rvu, RVU_PF_VFTRPENDX(idx), BIT_ULL(vf));
2772 /* clear interrupt */
2773 rvupf_write64(rvu, RVU_PF_VFME_INTX(idx), BIT_ULL(vf));
2774 }
2775 }
2776 }
2777
2778 /* Handles ME interrupts from VFs of AF */
rvu_me_vf_intr_handler(int irq,void * rvu_irq)2779 static irqreturn_t rvu_me_vf_intr_handler(int irq, void *rvu_irq)
2780 {
2781 struct rvu *rvu = (struct rvu *)rvu_irq;
2782 int vfset;
2783 u64 intr;
2784
2785 intr = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_PFME_INT);
2786
2787 for (vfset = 0; vfset <= 1; vfset++) {
2788 intr = rvupf_read64(rvu, RVU_PF_VFME_INTX(vfset));
2789 if (intr)
2790 rvu_me_handle_vfset(rvu, vfset, intr);
2791 }
2792
2793 return IRQ_HANDLED;
2794 }
2795
2796 /* Handles ME interrupts from PFs */
rvu_me_pf_intr_handler(int irq,void * rvu_irq)2797 static irqreturn_t rvu_me_pf_intr_handler(int irq, void *rvu_irq)
2798 {
2799 struct rvu *rvu = (struct rvu *)rvu_irq;
2800 u64 intr;
2801 u8 pf;
2802
2803 intr = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_PFME_INT);
2804
2805 /* Nothing to be done here other than clearing the
2806 * TRPEND bit.
2807 */
2808 for (pf = 0; pf < rvu->hw->total_pfs; pf++) {
2809 if (intr & (1ULL << pf)) {
2810 /* clear the trpend due to ME(master enable) */
2811 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFTRPEND,
2812 BIT_ULL(pf));
2813 /* clear interrupt */
2814 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFME_INT,
2815 BIT_ULL(pf));
2816 }
2817 }
2818
2819 return IRQ_HANDLED;
2820 }
2821
rvu_unregister_interrupts(struct rvu * rvu)2822 static void rvu_unregister_interrupts(struct rvu *rvu)
2823 {
2824 int irq;
2825
2826 rvu_cpt_unregister_interrupts(rvu);
2827
2828 /* Disable the Mbox interrupt */
2829 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT_ENA_W1C,
2830 INTR_MASK(rvu->hw->total_pfs) & ~1ULL);
2831
2832 /* Disable the PF FLR interrupt */
2833 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT_ENA_W1C,
2834 INTR_MASK(rvu->hw->total_pfs) & ~1ULL);
2835
2836 /* Disable the PF ME interrupt */
2837 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFME_INT_ENA_W1C,
2838 INTR_MASK(rvu->hw->total_pfs) & ~1ULL);
2839
2840 for (irq = 0; irq < rvu->num_vec; irq++) {
2841 if (rvu->irq_allocated[irq]) {
2842 free_irq(pci_irq_vector(rvu->pdev, irq), rvu);
2843 rvu->irq_allocated[irq] = false;
2844 }
2845 }
2846
2847 pci_free_irq_vectors(rvu->pdev);
2848 rvu->num_vec = 0;
2849 }
2850
rvu_afvf_msix_vectors_num_ok(struct rvu * rvu)2851 static int rvu_afvf_msix_vectors_num_ok(struct rvu *rvu)
2852 {
2853 struct rvu_pfvf *pfvf = &rvu->pf[0];
2854 int offset;
2855
2856 pfvf = &rvu->pf[0];
2857 offset = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_INT_CFG(0)) & 0x3ff;
2858
2859 /* Make sure there are enough MSIX vectors configured so that
2860 * VF interrupts can be handled. Offset equal to zero means
2861 * that PF vectors are not configured and overlapping AF vectors.
2862 */
2863 return (pfvf->msix.max >= RVU_AF_INT_VEC_CNT + RVU_PF_INT_VEC_CNT) &&
2864 offset;
2865 }
2866
rvu_register_interrupts(struct rvu * rvu)2867 static int rvu_register_interrupts(struct rvu *rvu)
2868 {
2869 int ret, offset, pf_vec_start;
2870
2871 rvu->num_vec = pci_msix_vec_count(rvu->pdev);
2872
2873 rvu->irq_name = devm_kmalloc_array(rvu->dev, rvu->num_vec,
2874 NAME_SIZE, GFP_KERNEL);
2875 if (!rvu->irq_name)
2876 return -ENOMEM;
2877
2878 rvu->irq_allocated = devm_kcalloc(rvu->dev, rvu->num_vec,
2879 sizeof(bool), GFP_KERNEL);
2880 if (!rvu->irq_allocated)
2881 return -ENOMEM;
2882
2883 /* Enable MSI-X */
2884 ret = pci_alloc_irq_vectors(rvu->pdev, rvu->num_vec,
2885 rvu->num_vec, PCI_IRQ_MSIX);
2886 if (ret < 0) {
2887 dev_err(rvu->dev,
2888 "RVUAF: Request for %d msix vectors failed, ret %d\n",
2889 rvu->num_vec, ret);
2890 return ret;
2891 }
2892
2893 /* Register mailbox interrupt handler */
2894 sprintf(&rvu->irq_name[RVU_AF_INT_VEC_MBOX * NAME_SIZE], "RVUAF Mbox");
2895 ret = request_irq(pci_irq_vector(rvu->pdev, RVU_AF_INT_VEC_MBOX),
2896 rvu_mbox_pf_intr_handler, 0,
2897 &rvu->irq_name[RVU_AF_INT_VEC_MBOX * NAME_SIZE], rvu);
2898 if (ret) {
2899 dev_err(rvu->dev,
2900 "RVUAF: IRQ registration failed for mbox irq\n");
2901 goto fail;
2902 }
2903
2904 rvu->irq_allocated[RVU_AF_INT_VEC_MBOX] = true;
2905
2906 /* Enable mailbox interrupts from all PFs */
2907 rvu_enable_mbox_intr(rvu);
2908
2909 /* Register FLR interrupt handler */
2910 sprintf(&rvu->irq_name[RVU_AF_INT_VEC_PFFLR * NAME_SIZE],
2911 "RVUAF FLR");
2912 ret = request_irq(pci_irq_vector(rvu->pdev, RVU_AF_INT_VEC_PFFLR),
2913 rvu_flr_intr_handler, 0,
2914 &rvu->irq_name[RVU_AF_INT_VEC_PFFLR * NAME_SIZE],
2915 rvu);
2916 if (ret) {
2917 dev_err(rvu->dev,
2918 "RVUAF: IRQ registration failed for FLR\n");
2919 goto fail;
2920 }
2921 rvu->irq_allocated[RVU_AF_INT_VEC_PFFLR] = true;
2922
2923 /* Enable FLR interrupt for all PFs*/
2924 rvu_write64(rvu, BLKADDR_RVUM,
2925 RVU_AF_PFFLR_INT, INTR_MASK(rvu->hw->total_pfs));
2926
2927 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT_ENA_W1S,
2928 INTR_MASK(rvu->hw->total_pfs) & ~1ULL);
2929
2930 /* Register ME interrupt handler */
2931 sprintf(&rvu->irq_name[RVU_AF_INT_VEC_PFME * NAME_SIZE],
2932 "RVUAF ME");
2933 ret = request_irq(pci_irq_vector(rvu->pdev, RVU_AF_INT_VEC_PFME),
2934 rvu_me_pf_intr_handler, 0,
2935 &rvu->irq_name[RVU_AF_INT_VEC_PFME * NAME_SIZE],
2936 rvu);
2937 if (ret) {
2938 dev_err(rvu->dev,
2939 "RVUAF: IRQ registration failed for ME\n");
2940 }
2941 rvu->irq_allocated[RVU_AF_INT_VEC_PFME] = true;
2942
2943 /* Clear TRPEND bit for all PF */
2944 rvu_write64(rvu, BLKADDR_RVUM,
2945 RVU_AF_PFTRPEND, INTR_MASK(rvu->hw->total_pfs));
2946 /* Enable ME interrupt for all PFs*/
2947 rvu_write64(rvu, BLKADDR_RVUM,
2948 RVU_AF_PFME_INT, INTR_MASK(rvu->hw->total_pfs));
2949
2950 rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFME_INT_ENA_W1S,
2951 INTR_MASK(rvu->hw->total_pfs) & ~1ULL);
2952
2953 if (!rvu_afvf_msix_vectors_num_ok(rvu))
2954 return 0;
2955
2956 /* Get PF MSIX vectors offset. */
2957 pf_vec_start = rvu_read64(rvu, BLKADDR_RVUM,
2958 RVU_PRIV_PFX_INT_CFG(0)) & 0x3ff;
2959
2960 /* Register MBOX0 interrupt. */
2961 offset = pf_vec_start + RVU_PF_INT_VEC_VFPF_MBOX0;
2962 sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF Mbox0");
2963 ret = request_irq(pci_irq_vector(rvu->pdev, offset),
2964 rvu_mbox_intr_handler, 0,
2965 &rvu->irq_name[offset * NAME_SIZE],
2966 rvu);
2967 if (ret)
2968 dev_err(rvu->dev,
2969 "RVUAF: IRQ registration failed for Mbox0\n");
2970
2971 rvu->irq_allocated[offset] = true;
2972
2973 /* Register MBOX1 interrupt. MBOX1 IRQ number follows MBOX0 so
2974 * simply increment current offset by 1.
2975 */
2976 offset = pf_vec_start + RVU_PF_INT_VEC_VFPF_MBOX1;
2977 sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF Mbox1");
2978 ret = request_irq(pci_irq_vector(rvu->pdev, offset),
2979 rvu_mbox_intr_handler, 0,
2980 &rvu->irq_name[offset * NAME_SIZE],
2981 rvu);
2982 if (ret)
2983 dev_err(rvu->dev,
2984 "RVUAF: IRQ registration failed for Mbox1\n");
2985
2986 rvu->irq_allocated[offset] = true;
2987
2988 /* Register FLR interrupt handler for AF's VFs */
2989 offset = pf_vec_start + RVU_PF_INT_VEC_VFFLR0;
2990 sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF FLR0");
2991 ret = request_irq(pci_irq_vector(rvu->pdev, offset),
2992 rvu_flr_intr_handler, 0,
2993 &rvu->irq_name[offset * NAME_SIZE], rvu);
2994 if (ret) {
2995 dev_err(rvu->dev,
2996 "RVUAF: IRQ registration failed for RVUAFVF FLR0\n");
2997 goto fail;
2998 }
2999 rvu->irq_allocated[offset] = true;
3000
3001 offset = pf_vec_start + RVU_PF_INT_VEC_VFFLR1;
3002 sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF FLR1");
3003 ret = request_irq(pci_irq_vector(rvu->pdev, offset),
3004 rvu_flr_intr_handler, 0,
3005 &rvu->irq_name[offset * NAME_SIZE], rvu);
3006 if (ret) {
3007 dev_err(rvu->dev,
3008 "RVUAF: IRQ registration failed for RVUAFVF FLR1\n");
3009 goto fail;
3010 }
3011 rvu->irq_allocated[offset] = true;
3012
3013 /* Register ME interrupt handler for AF's VFs */
3014 offset = pf_vec_start + RVU_PF_INT_VEC_VFME0;
3015 sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF ME0");
3016 ret = request_irq(pci_irq_vector(rvu->pdev, offset),
3017 rvu_me_vf_intr_handler, 0,
3018 &rvu->irq_name[offset * NAME_SIZE], rvu);
3019 if (ret) {
3020 dev_err(rvu->dev,
3021 "RVUAF: IRQ registration failed for RVUAFVF ME0\n");
3022 goto fail;
3023 }
3024 rvu->irq_allocated[offset] = true;
3025
3026 offset = pf_vec_start + RVU_PF_INT_VEC_VFME1;
3027 sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF ME1");
3028 ret = request_irq(pci_irq_vector(rvu->pdev, offset),
3029 rvu_me_vf_intr_handler, 0,
3030 &rvu->irq_name[offset * NAME_SIZE], rvu);
3031 if (ret) {
3032 dev_err(rvu->dev,
3033 "RVUAF: IRQ registration failed for RVUAFVF ME1\n");
3034 goto fail;
3035 }
3036 rvu->irq_allocated[offset] = true;
3037
3038 ret = rvu_cpt_register_interrupts(rvu);
3039 if (ret)
3040 goto fail;
3041
3042 return 0;
3043
3044 fail:
3045 rvu_unregister_interrupts(rvu);
3046 return ret;
3047 }
3048
rvu_flr_wq_destroy(struct rvu * rvu)3049 static void rvu_flr_wq_destroy(struct rvu *rvu)
3050 {
3051 if (rvu->flr_wq) {
3052 destroy_workqueue(rvu->flr_wq);
3053 rvu->flr_wq = NULL;
3054 }
3055 }
3056
rvu_flr_init(struct rvu * rvu)3057 static int rvu_flr_init(struct rvu *rvu)
3058 {
3059 int dev, num_devs;
3060 u64 cfg;
3061 int pf;
3062
3063 /* Enable FLR for all PFs*/
3064 for (pf = 0; pf < rvu->hw->total_pfs; pf++) {
3065 cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf));
3066 rvu_write64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf),
3067 cfg | BIT_ULL(22));
3068 }
3069
3070 rvu->flr_wq = alloc_ordered_workqueue("rvu_afpf_flr",
3071 WQ_HIGHPRI | WQ_MEM_RECLAIM);
3072 if (!rvu->flr_wq)
3073 return -ENOMEM;
3074
3075 num_devs = rvu->hw->total_pfs + pci_sriov_get_totalvfs(rvu->pdev);
3076 rvu->flr_wrk = devm_kcalloc(rvu->dev, num_devs,
3077 sizeof(struct rvu_work), GFP_KERNEL);
3078 if (!rvu->flr_wrk) {
3079 destroy_workqueue(rvu->flr_wq);
3080 return -ENOMEM;
3081 }
3082
3083 for (dev = 0; dev < num_devs; dev++) {
3084 rvu->flr_wrk[dev].rvu = rvu;
3085 INIT_WORK(&rvu->flr_wrk[dev].work, rvu_flr_handler);
3086 }
3087
3088 mutex_init(&rvu->flr_lock);
3089
3090 return 0;
3091 }
3092
rvu_disable_afvf_intr(struct rvu * rvu)3093 static void rvu_disable_afvf_intr(struct rvu *rvu)
3094 {
3095 int vfs = rvu->vfs;
3096
3097 rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INT_ENA_W1CX(0), INTR_MASK(vfs));
3098 rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1CX(0), INTR_MASK(vfs));
3099 rvupf_write64(rvu, RVU_PF_VFME_INT_ENA_W1CX(0), INTR_MASK(vfs));
3100 if (vfs <= 64)
3101 return;
3102
3103 rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INT_ENA_W1CX(1),
3104 INTR_MASK(vfs - 64));
3105 rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1CX(1), INTR_MASK(vfs - 64));
3106 rvupf_write64(rvu, RVU_PF_VFME_INT_ENA_W1CX(1), INTR_MASK(vfs - 64));
3107 }
3108
rvu_enable_afvf_intr(struct rvu * rvu)3109 static void rvu_enable_afvf_intr(struct rvu *rvu)
3110 {
3111 int vfs = rvu->vfs;
3112
3113 /* Clear any pending interrupts and enable AF VF interrupts for
3114 * the first 64 VFs.
3115 */
3116 /* Mbox */
3117 rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INTX(0), INTR_MASK(vfs));
3118 rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INT_ENA_W1SX(0), INTR_MASK(vfs));
3119
3120 /* FLR */
3121 rvupf_write64(rvu, RVU_PF_VFFLR_INTX(0), INTR_MASK(vfs));
3122 rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1SX(0), INTR_MASK(vfs));
3123 rvupf_write64(rvu, RVU_PF_VFME_INT_ENA_W1SX(0), INTR_MASK(vfs));
3124
3125 /* Same for remaining VFs, if any. */
3126 if (vfs <= 64)
3127 return;
3128
3129 rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INTX(1), INTR_MASK(vfs - 64));
3130 rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INT_ENA_W1SX(1),
3131 INTR_MASK(vfs - 64));
3132
3133 rvupf_write64(rvu, RVU_PF_VFFLR_INTX(1), INTR_MASK(vfs - 64));
3134 rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1SX(1), INTR_MASK(vfs - 64));
3135 rvupf_write64(rvu, RVU_PF_VFME_INT_ENA_W1SX(1), INTR_MASK(vfs - 64));
3136 }
3137
rvu_get_num_lbk_chans(void)3138 int rvu_get_num_lbk_chans(void)
3139 {
3140 struct pci_dev *pdev;
3141 void __iomem *base;
3142 int ret = -EIO;
3143
3144 pdev = pci_get_device(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_LBK,
3145 NULL);
3146 if (!pdev)
3147 goto err;
3148
3149 base = pci_ioremap_bar(pdev, 0);
3150 if (!base)
3151 goto err_put;
3152
3153 /* Read number of available LBK channels from LBK(0)_CONST register. */
3154 ret = (readq(base + 0x10) >> 32) & 0xffff;
3155 iounmap(base);
3156 err_put:
3157 pci_dev_put(pdev);
3158 err:
3159 return ret;
3160 }
3161
rvu_enable_sriov(struct rvu * rvu)3162 static int rvu_enable_sriov(struct rvu *rvu)
3163 {
3164 struct pci_dev *pdev = rvu->pdev;
3165 int err, chans, vfs;
3166
3167 if (!rvu_afvf_msix_vectors_num_ok(rvu)) {
3168 dev_warn(&pdev->dev,
3169 "Skipping SRIOV enablement since not enough IRQs are available\n");
3170 return 0;
3171 }
3172
3173 chans = rvu_get_num_lbk_chans();
3174 if (chans < 0)
3175 return chans;
3176
3177 vfs = pci_sriov_get_totalvfs(pdev);
3178
3179 /* Limit VFs in case we have more VFs than LBK channels available. */
3180 if (vfs > chans)
3181 vfs = chans;
3182
3183 if (!vfs)
3184 return 0;
3185
3186 /* LBK channel number 63 is used for switching packets between
3187 * CGX mapped VFs. Hence limit LBK pairs till 62 only.
3188 */
3189 if (vfs > 62)
3190 vfs = 62;
3191
3192 /* Save VFs number for reference in VF interrupts handlers.
3193 * Since interrupts might start arriving during SRIOV enablement
3194 * ordinary API cannot be used to get number of enabled VFs.
3195 */
3196 rvu->vfs = vfs;
3197
3198 err = rvu_mbox_init(rvu, &rvu->afvf_wq_info, TYPE_AFVF, vfs,
3199 rvu_afvf_mbox_handler, rvu_afvf_mbox_up_handler);
3200 if (err)
3201 return err;
3202
3203 rvu_enable_afvf_intr(rvu);
3204 /* Make sure IRQs are enabled before SRIOV. */
3205 mb();
3206
3207 err = pci_enable_sriov(pdev, vfs);
3208 if (err) {
3209 rvu_disable_afvf_intr(rvu);
3210 rvu_mbox_destroy(&rvu->afvf_wq_info);
3211 return err;
3212 }
3213
3214 return 0;
3215 }
3216
rvu_disable_sriov(struct rvu * rvu)3217 static void rvu_disable_sriov(struct rvu *rvu)
3218 {
3219 rvu_disable_afvf_intr(rvu);
3220 rvu_mbox_destroy(&rvu->afvf_wq_info);
3221 pci_disable_sriov(rvu->pdev);
3222 }
3223
rvu_update_module_params(struct rvu * rvu)3224 static void rvu_update_module_params(struct rvu *rvu)
3225 {
3226 const char *default_pfl_name = "default";
3227
3228 strscpy(rvu->mkex_pfl_name,
3229 mkex_profile ? mkex_profile : default_pfl_name, MKEX_NAME_LEN);
3230 strscpy(rvu->kpu_pfl_name,
3231 kpu_profile ? kpu_profile : default_pfl_name, KPU_NAME_LEN);
3232 }
3233
rvu_probe(struct pci_dev * pdev,const struct pci_device_id * id)3234 static int rvu_probe(struct pci_dev *pdev, const struct pci_device_id *id)
3235 {
3236 struct device *dev = &pdev->dev;
3237 struct rvu *rvu;
3238 int err;
3239
3240 rvu = devm_kzalloc(dev, sizeof(*rvu), GFP_KERNEL);
3241 if (!rvu)
3242 return -ENOMEM;
3243
3244 rvu->hw = devm_kzalloc(dev, sizeof(struct rvu_hwinfo), GFP_KERNEL);
3245 if (!rvu->hw) {
3246 devm_kfree(dev, rvu);
3247 return -ENOMEM;
3248 }
3249
3250 pci_set_drvdata(pdev, rvu);
3251 rvu->pdev = pdev;
3252 rvu->dev = &pdev->dev;
3253
3254 err = pci_enable_device(pdev);
3255 if (err) {
3256 dev_err(dev, "Failed to enable PCI device\n");
3257 goto err_freemem;
3258 }
3259
3260 err = pci_request_regions(pdev, DRV_NAME);
3261 if (err) {
3262 dev_err(dev, "PCI request regions failed 0x%x\n", err);
3263 goto err_disable_device;
3264 }
3265
3266 err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
3267 if (err) {
3268 dev_err(dev, "DMA mask config failed, abort\n");
3269 goto err_release_regions;
3270 }
3271
3272 pci_set_master(pdev);
3273
3274 rvu->ptp = ptp_get();
3275 if (IS_ERR(rvu->ptp)) {
3276 err = PTR_ERR(rvu->ptp);
3277 if (err)
3278 goto err_release_regions;
3279 rvu->ptp = NULL;
3280 }
3281
3282 /* Map Admin function CSRs */
3283 rvu->afreg_base = pcim_iomap(pdev, PCI_AF_REG_BAR_NUM, 0);
3284 rvu->pfreg_base = pcim_iomap(pdev, PCI_PF_REG_BAR_NUM, 0);
3285 if (!rvu->afreg_base || !rvu->pfreg_base) {
3286 dev_err(dev, "Unable to map admin function CSRs, aborting\n");
3287 err = -ENOMEM;
3288 goto err_put_ptp;
3289 }
3290
3291 /* Store module params in rvu structure */
3292 rvu_update_module_params(rvu);
3293
3294 /* Check which blocks the HW supports */
3295 rvu_check_block_implemented(rvu);
3296
3297 rvu_reset_all_blocks(rvu);
3298
3299 rvu_setup_hw_capabilities(rvu);
3300
3301 err = rvu_setup_hw_resources(rvu);
3302 if (err)
3303 goto err_put_ptp;
3304
3305 /* Init mailbox btw AF and PFs */
3306 err = rvu_mbox_init(rvu, &rvu->afpf_wq_info, TYPE_AFPF,
3307 rvu->hw->total_pfs, rvu_afpf_mbox_handler,
3308 rvu_afpf_mbox_up_handler);
3309 if (err) {
3310 dev_err(dev, "%s: Failed to initialize mbox\n", __func__);
3311 goto err_hwsetup;
3312 }
3313
3314 err = rvu_flr_init(rvu);
3315 if (err) {
3316 dev_err(dev, "%s: Failed to initialize flr\n", __func__);
3317 goto err_mbox;
3318 }
3319
3320 err = rvu_register_interrupts(rvu);
3321 if (err) {
3322 dev_err(dev, "%s: Failed to register interrupts\n", __func__);
3323 goto err_flr;
3324 }
3325
3326 err = rvu_register_dl(rvu);
3327 if (err) {
3328 dev_err(dev, "%s: Failed to register devlink\n", __func__);
3329 goto err_irq;
3330 }
3331
3332 rvu_setup_rvum_blk_revid(rvu);
3333
3334 /* Enable AF's VFs (if any) */
3335 err = rvu_enable_sriov(rvu);
3336 if (err) {
3337 dev_err(dev, "%s: Failed to enable sriov\n", __func__);
3338 goto err_dl;
3339 }
3340
3341 /* Initialize debugfs */
3342 rvu_dbg_init(rvu);
3343
3344 mutex_init(&rvu->rswitch.switch_lock);
3345
3346 if (rvu->fwdata)
3347 ptp_start(rvu, rvu->fwdata->sclk, rvu->fwdata->ptp_ext_clk_rate,
3348 rvu->fwdata->ptp_ext_tstamp);
3349
3350 return 0;
3351 err_dl:
3352 rvu_unregister_dl(rvu);
3353 err_irq:
3354 rvu_unregister_interrupts(rvu);
3355 err_flr:
3356 rvu_flr_wq_destroy(rvu);
3357 err_mbox:
3358 rvu_mbox_destroy(&rvu->afpf_wq_info);
3359 err_hwsetup:
3360 rvu_cgx_exit(rvu);
3361 rvu_fwdata_exit(rvu);
3362 rvu_mcs_exit(rvu);
3363 rvu_reset_all_blocks(rvu);
3364 rvu_free_hw_resources(rvu);
3365 rvu_clear_rvum_blk_revid(rvu);
3366 err_put_ptp:
3367 ptp_put(rvu->ptp);
3368 err_release_regions:
3369 pci_release_regions(pdev);
3370 err_disable_device:
3371 pci_disable_device(pdev);
3372 err_freemem:
3373 pci_set_drvdata(pdev, NULL);
3374 devm_kfree(&pdev->dev, rvu->hw);
3375 devm_kfree(dev, rvu);
3376 return err;
3377 }
3378
rvu_remove(struct pci_dev * pdev)3379 static void rvu_remove(struct pci_dev *pdev)
3380 {
3381 struct rvu *rvu = pci_get_drvdata(pdev);
3382
3383 rvu_dbg_exit(rvu);
3384 rvu_unregister_dl(rvu);
3385 rvu_unregister_interrupts(rvu);
3386 rvu_flr_wq_destroy(rvu);
3387 rvu_cgx_exit(rvu);
3388 rvu_fwdata_exit(rvu);
3389 rvu_mcs_exit(rvu);
3390 rvu_mbox_destroy(&rvu->afpf_wq_info);
3391 rvu_disable_sriov(rvu);
3392 rvu_reset_all_blocks(rvu);
3393 rvu_free_hw_resources(rvu);
3394 rvu_clear_rvum_blk_revid(rvu);
3395 ptp_put(rvu->ptp);
3396 pci_release_regions(pdev);
3397 pci_disable_device(pdev);
3398 pci_set_drvdata(pdev, NULL);
3399
3400 devm_kfree(&pdev->dev, rvu->hw);
3401 devm_kfree(&pdev->dev, rvu);
3402 }
3403
3404 static struct pci_driver rvu_driver = {
3405 .name = DRV_NAME,
3406 .id_table = rvu_id_table,
3407 .probe = rvu_probe,
3408 .remove = rvu_remove,
3409 };
3410
rvu_init_module(void)3411 static int __init rvu_init_module(void)
3412 {
3413 int err;
3414
3415 pr_info("%s: %s\n", DRV_NAME, DRV_STRING);
3416
3417 err = pci_register_driver(&cgx_driver);
3418 if (err < 0)
3419 return err;
3420
3421 err = pci_register_driver(&ptp_driver);
3422 if (err < 0)
3423 goto ptp_err;
3424
3425 err = pci_register_driver(&mcs_driver);
3426 if (err < 0)
3427 goto mcs_err;
3428
3429 err = pci_register_driver(&rvu_driver);
3430 if (err < 0)
3431 goto rvu_err;
3432
3433 return 0;
3434 rvu_err:
3435 pci_unregister_driver(&mcs_driver);
3436 mcs_err:
3437 pci_unregister_driver(&ptp_driver);
3438 ptp_err:
3439 pci_unregister_driver(&cgx_driver);
3440
3441 return err;
3442 }
3443
rvu_cleanup_module(void)3444 static void __exit rvu_cleanup_module(void)
3445 {
3446 pci_unregister_driver(&rvu_driver);
3447 pci_unregister_driver(&mcs_driver);
3448 pci_unregister_driver(&ptp_driver);
3449 pci_unregister_driver(&cgx_driver);
3450 }
3451
3452 module_init(rvu_init_module);
3453 module_exit(rvu_cleanup_module);
3454