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16#include <linux/module.h>
17#include <linux/sched.h>
18#include <linux/kernel.h>
19#include <linux/mm.h>
20#include <linux/pci.h>
21#include <linux/poison.h>
22#include <linux/errno.h>
23#include <linux/atm.h>
24#include <linux/atmdev.h>
25#include <linux/sonet.h>
26#include <linux/skbuff.h>
27#include <linux/netdevice.h>
28#include <linux/delay.h>
29#include <linux/ioport.h>
30#include <linux/uio.h>
31#include <linux/init.h>
32#include <linux/interrupt.h>
33#include <linux/capability.h>
34#include <linux/bitops.h>
35#include <linux/slab.h>
36#include <asm/byteorder.h>
37#include <asm/string.h>
38#include <asm/io.h>
39#include <linux/atomic.h>
40#include <linux/uaccess.h>
41#include <linux/wait.h>
42
43#include "firestream.h"
44
45static int loopback = 0;
46static int num=0x5a;
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70
71#define NP FS_NR_FREE_POOLS
72static int rx_buf_sizes[NP] = {128, 256, 512, 1024, 2048, 4096, 16384, 65520};
73
74
75#if 0
76static int rx_pool_sizes[NP] = {1024, 1024, 512, 256, 128, 64, 32, 32};
77#else
78
79static int rx_pool_sizes[NP] = {128, 128, 128, 64, 64, 64, 32, 32};
80#endif
81
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84
85
86
87#undef NP
88
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138static char *res_strings[] = {
139 "RX OK: streaming not EOP",
140 "RX OK: streaming EOP",
141 "RX OK: Single buffer packet",
142 "RX OK: packet mode",
143 "RX OK: F4 OAM (end to end)",
144 "RX OK: F4 OAM (Segment)",
145 "RX OK: F5 OAM (end to end)",
146 "RX OK: F5 OAM (Segment)",
147 "RX OK: RM cell",
148 "RX OK: TRANSP cell",
149 "RX OK: TRANSPC cell",
150 "Unmatched cell",
151 "reserved 12",
152 "reserved 13",
153 "reserved 14",
154 "Unrecognized cell",
155 "reserved 16",
156 "reassembly abort: AAL5 abort",
157 "packet purged",
158 "packet ageing timeout",
159 "channel ageing timeout",
160 "calculated length error",
161 "programmed length limit error",
162 "aal5 crc32 error",
163 "oam transp or transpc crc10 error",
164 "reserved 25",
165 "reserved 26",
166 "reserved 27",
167 "reserved 28",
168 "reserved 29",
169 "reserved 30",
170 "reassembly abort: no buffers",
171 "receive buffer overflow",
172 "change in GFC",
173 "receive buffer full",
174 "low priority discard - no receive descriptor",
175 "low priority discard - missing end of packet",
176 "reserved 37",
177 "reserved 38",
178 "reserved 39",
179 "reserved 40",
180 "reserved 41",
181 "reserved 42",
182 "reserved 43",
183 "reserved 44",
184 "reserved 45",
185 "reserved 46",
186 "reserved 47",
187 "reserved 48",
188 "reserved 49",
189 "reserved 50",
190 "reserved 51",
191 "reserved 52",
192 "reserved 53",
193 "reserved 54",
194 "reserved 55",
195 "reserved 56",
196 "reserved 57",
197 "reserved 58",
198 "reserved 59",
199 "reserved 60",
200 "reserved 61",
201 "reserved 62",
202 "reserved 63",
203};
204
205static char *irq_bitname[] = {
206 "LPCO",
207 "DPCO",
208 "RBRQ0_W",
209 "RBRQ1_W",
210 "RBRQ2_W",
211 "RBRQ3_W",
212 "RBRQ0_NF",
213 "RBRQ1_NF",
214 "RBRQ2_NF",
215 "RBRQ3_NF",
216 "BFP_SC",
217 "INIT",
218 "INIT_ERR",
219 "USCEO",
220 "UPEC0",
221 "VPFCO",
222 "CRCCO",
223 "HECO",
224 "TBRQ_W",
225 "TBRQ_NF",
226 "CTPQ_E",
227 "GFC_C0",
228 "PCI_FTL",
229 "CSQ_W",
230 "CSQ_NF",
231 "EXT_INT",
232 "RXDMA_S"
233};
234
235
236#define PHY_EOF -1
237#define PHY_CLEARALL -2
238
239struct reginit_item {
240 int reg, val;
241};
242
243
244static struct reginit_item PHY_NTC_INIT[] = {
245 { PHY_CLEARALL, 0x40 },
246 { 0x12, 0x0001 },
247 { 0x13, 0x7605 },
248 { 0x1A, 0x0001 },
249 { 0x1B, 0x0005 },
250 { 0x38, 0x0003 },
251 { 0x39, 0x0006 },
252 { 0x01, 0x5262 },
253 { 0x15, 0x0213 },
254 { 0x00, 0x0003 },
255 { PHY_EOF, 0},
256};
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264
265#undef IRQ_RATE_LIMIT
266
267
268
269#undef FS_POLL_FREQ
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278
279#define DEBUG
280
281#ifdef DEBUG
282#define fs_dprintk(f, str...) if (fs_debug & f) printk (str)
283#else
284#define fs_dprintk(f, str...)
285#endif
286
287
288static int fs_keystream = 0;
289
290#ifdef DEBUG
291
292
293static int fs_debug = 0;
294#else
295#define fs_debug 0
296#endif
297
298#ifdef MODULE
299#ifdef DEBUG
300module_param(fs_debug, int, 0644);
301#endif
302module_param(loopback, int, 0);
303module_param(num, int, 0);
304module_param(fs_keystream, int, 0);
305
306#endif
307
308
309#define FS_DEBUG_FLOW 0x00000001
310#define FS_DEBUG_OPEN 0x00000002
311#define FS_DEBUG_QUEUE 0x00000004
312#define FS_DEBUG_IRQ 0x00000008
313#define FS_DEBUG_INIT 0x00000010
314#define FS_DEBUG_SEND 0x00000020
315#define FS_DEBUG_PHY 0x00000040
316#define FS_DEBUG_CLEANUP 0x00000080
317#define FS_DEBUG_QOS 0x00000100
318#define FS_DEBUG_TXQ 0x00000200
319#define FS_DEBUG_ALLOC 0x00000400
320#define FS_DEBUG_TXMEM 0x00000800
321#define FS_DEBUG_QSIZE 0x00001000
322
323
324#define func_enter() fs_dprintk(FS_DEBUG_FLOW, "fs: enter %s\n", __func__)
325#define func_exit() fs_dprintk(FS_DEBUG_FLOW, "fs: exit %s\n", __func__)
326
327
328static struct fs_dev *fs_boards = NULL;
329
330#ifdef DEBUG
331
332static void my_hd (void *addr, int len)
333{
334 int j, ch;
335 unsigned char *ptr = addr;
336
337 while (len > 0) {
338 printk ("%p ", ptr);
339 for (j=0;j < ((len < 16)?len:16);j++) {
340 printk ("%02x %s", ptr[j], (j==7)?" ":"");
341 }
342 for ( ;j < 16;j++) {
343 printk (" %s", (j==7)?" ":"");
344 }
345 for (j=0;j < ((len < 16)?len:16);j++) {
346 ch = ptr[j];
347 printk ("%c", (ch < 0x20)?'.':((ch > 0x7f)?'.':ch));
348 }
349 printk ("\n");
350 ptr += 16;
351 len -= 16;
352 }
353}
354#else
355static void my_hd (void *addr, int len){}
356#endif
357
358
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361
362
363static inline void fs_kfree_skb (struct sk_buff * skb)
364{
365 if (ATM_SKB(skb)->vcc->pop)
366 ATM_SKB(skb)->vcc->pop (ATM_SKB(skb)->vcc, skb);
367 else
368 dev_kfree_skb_any (skb);
369}
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431#define ROUND_UP 1
432#define ROUND_DOWN 2
433#define ROUND_NEAREST 3
434
435
436static int make_rate(unsigned int rate, int r,
437 u16 *bits, unsigned int *actual)
438{
439 unsigned char exp = -1;
440 unsigned int man = -1;
441
442 fs_dprintk (FS_DEBUG_QOS, "make_rate %u", rate);
443
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460 if (rate > 0xffc00000U) {
461
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463 if (r == ROUND_UP) {
464 return -EINVAL;
465 } else {
466 exp = 31;
467 man = 511;
468 }
469
470 } else if (rate) {
471
472
473 exp = 31;
474 man = rate;
475
476
477 while (!(man & (1<<31))) {
478 exp = exp - 1;
479 man = man<<1;
480 }
481
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485
486 man = man<<1;
487 man &= 0xffffffffU;
488
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496
497 switch (r) {
498 case ROUND_DOWN: {
499
500 man = man>>(32-9);
501 break;
502 }
503 case ROUND_UP: {
504
505 if (man & (~0U>>9)) {
506 man = (man>>(32-9)) + 1;
507 if (man == (1<<9)) {
508
509 man = 0;
510 exp += 1;
511 }
512 } else {
513 man = (man>>(32-9));
514 }
515 break;
516 }
517 case ROUND_NEAREST: {
518
519 if (man & (1<<(32-9-1))) {
520 man = (man>>(32-9)) + 1;
521 if (man == (1<<9)) {
522
523 man = 0;
524 exp += 1;
525 }
526 } else {
527 man = (man>>(32-9));
528 }
529 break;
530 }
531 }
532
533 } else {
534
535
536 if (r == ROUND_DOWN) {
537 return -EINVAL;
538 } else {
539 exp = 0;
540 man = 0;
541 }
542 }
543
544 fs_dprintk (FS_DEBUG_QOS, "rate: man=%u, exp=%hu", man, exp);
545
546 if (bits)
547 *bits = (exp<<9) | man;
548
549 if (actual)
550 *actual = (exp >= 9)
551 ? (1 << exp) + (man << (exp-9))
552 : (1 << exp) + ((man + (1<<(9-exp-1))) >> (9-exp));
553
554 return 0;
555}
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563
564static inline void write_fs (struct fs_dev *dev, int offset, u32 val)
565{
566 writel (val, dev->base + offset);
567}
568
569
570static inline u32 read_fs (struct fs_dev *dev, int offset)
571{
572 return readl (dev->base + offset);
573}
574
575
576
577static inline struct FS_QENTRY *get_qentry (struct fs_dev *dev, struct queue *q)
578{
579 return bus_to_virt (read_fs (dev, Q_WP(q->offset)) & Q_ADDR_MASK);
580}
581
582
583static void submit_qentry (struct fs_dev *dev, struct queue *q, struct FS_QENTRY *qe)
584{
585 u32 wp;
586 struct FS_QENTRY *cqe;
587
588
589
590
591 while ((wp = read_fs (dev, Q_WP (q->offset))) & Q_FULL) {
592 fs_dprintk (FS_DEBUG_TXQ, "Found queue at %x full. Waiting.\n",
593 q->offset);
594 schedule ();
595 }
596
597 wp &= ~0xf;
598 cqe = bus_to_virt (wp);
599 if (qe != cqe) {
600 fs_dprintk (FS_DEBUG_TXQ, "q mismatch! %p %p\n", qe, cqe);
601 }
602
603 write_fs (dev, Q_WP(q->offset), Q_INCWRAP);
604
605 {
606 static int c;
607 if (!(c++ % 100))
608 {
609 int rp, wp;
610 rp = read_fs (dev, Q_RP(q->offset));
611 wp = read_fs (dev, Q_WP(q->offset));
612 fs_dprintk (FS_DEBUG_TXQ, "q at %d: %x-%x: %x entries.\n",
613 q->offset, rp, wp, wp-rp);
614 }
615 }
616}
617
618#ifdef DEBUG_EXTRA
619static struct FS_QENTRY pq[60];
620static int qp;
621
622static struct FS_BPENTRY dq[60];
623static int qd;
624static void *da[60];
625#endif
626
627static void submit_queue (struct fs_dev *dev, struct queue *q,
628 u32 cmd, u32 p1, u32 p2, u32 p3)
629{
630 struct FS_QENTRY *qe;
631
632 qe = get_qentry (dev, q);
633 qe->cmd = cmd;
634 qe->p0 = p1;
635 qe->p1 = p2;
636 qe->p2 = p3;
637 submit_qentry (dev, q, qe);
638
639#ifdef DEBUG_EXTRA
640 pq[qp].cmd = cmd;
641 pq[qp].p0 = p1;
642 pq[qp].p1 = p2;
643 pq[qp].p2 = p3;
644 qp++;
645 if (qp >= 60) qp = 0;
646#endif
647}
648
649
650#if 1
651#define submit_command submit_queue
652#else
653
654static void submit_command (struct fs_dev *dev, struct queue *q,
655 u32 cmd, u32 p1, u32 p2, u32 p3)
656{
657 write_fs (dev, CMDR0, cmd);
658 write_fs (dev, CMDR1, p1);
659 write_fs (dev, CMDR2, p2);
660 write_fs (dev, CMDR3, p3);
661}
662#endif
663
664
665
666static void process_return_queue (struct fs_dev *dev, struct queue *q)
667{
668 long rq;
669 struct FS_QENTRY *qe;
670 void *tc;
671
672 while (!((rq = read_fs (dev, Q_RP(q->offset))) & Q_EMPTY)) {
673 fs_dprintk (FS_DEBUG_QUEUE, "reaping return queue entry at %lx\n", rq);
674 qe = bus_to_virt (rq);
675
676 fs_dprintk (FS_DEBUG_QUEUE, "queue entry: %08x %08x %08x %08x. (%d)\n",
677 qe->cmd, qe->p0, qe->p1, qe->p2, STATUS_CODE (qe));
678
679 switch (STATUS_CODE (qe)) {
680 case 5:
681 tc = bus_to_virt (qe->p0);
682 fs_dprintk (FS_DEBUG_ALLOC, "Free tc: %p\n", tc);
683 kfree (tc);
684 break;
685 }
686
687 write_fs (dev, Q_RP(q->offset), Q_INCWRAP);
688 }
689}
690
691
692static void process_txdone_queue (struct fs_dev *dev, struct queue *q)
693{
694 long rq;
695 long tmp;
696 struct FS_QENTRY *qe;
697 struct sk_buff *skb;
698 struct FS_BPENTRY *td;
699
700 while (!((rq = read_fs (dev, Q_RP(q->offset))) & Q_EMPTY)) {
701 fs_dprintk (FS_DEBUG_QUEUE, "reaping txdone entry at %lx\n", rq);
702 qe = bus_to_virt (rq);
703
704 fs_dprintk (FS_DEBUG_QUEUE, "queue entry: %08x %08x %08x %08x: %d\n",
705 qe->cmd, qe->p0, qe->p1, qe->p2, STATUS_CODE (qe));
706
707 if (STATUS_CODE (qe) != 2)
708 fs_dprintk (FS_DEBUG_TXMEM, "queue entry: %08x %08x %08x %08x: %d\n",
709 qe->cmd, qe->p0, qe->p1, qe->p2, STATUS_CODE (qe));
710
711
712 switch (STATUS_CODE (qe)) {
713 case 0x01:
714 fallthrough;
715 case 0x02:
716
717 tmp = qe->p0;
718 if (tmp & 0x0f)
719 printk (KERN_WARNING "td not aligned: %ld\n", tmp);
720 tmp &= ~0x0f;
721 td = bus_to_virt (tmp);
722
723 fs_dprintk (FS_DEBUG_QUEUE, "Pool entry: %08x %08x %08x %08x %p.\n",
724 td->flags, td->next, td->bsa, td->aal_bufsize, td->skb );
725
726 skb = td->skb;
727 if (skb == FS_VCC (ATM_SKB(skb)->vcc)->last_skb) {
728 FS_VCC (ATM_SKB(skb)->vcc)->last_skb = NULL;
729 wake_up_interruptible (& FS_VCC (ATM_SKB(skb)->vcc)->close_wait);
730 }
731 td->dev->ntxpckts--;
732
733 {
734 static int c=0;
735
736 if (!(c++ % 100)) {
737 fs_dprintk (FS_DEBUG_QSIZE, "[%d]", td->dev->ntxpckts);
738 }
739 }
740
741 atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
742
743 fs_dprintk (FS_DEBUG_TXMEM, "i");
744 fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb);
745 fs_kfree_skb (skb);
746
747 fs_dprintk (FS_DEBUG_ALLOC, "Free trans-d: %p\n", td);
748 memset (td, ATM_POISON_FREE, sizeof(struct FS_BPENTRY));
749 kfree (td);
750 break;
751 default:
752
753
754 ;
755 }
756
757 write_fs (dev, Q_RP(q->offset), Q_INCWRAP);
758 }
759}
760
761
762static void process_incoming (struct fs_dev *dev, struct queue *q)
763{
764 long rq;
765 struct FS_QENTRY *qe;
766 struct FS_BPENTRY *pe;
767 struct sk_buff *skb;
768 unsigned int channo;
769 struct atm_vcc *atm_vcc;
770
771 while (!((rq = read_fs (dev, Q_RP(q->offset))) & Q_EMPTY)) {
772 fs_dprintk (FS_DEBUG_QUEUE, "reaping incoming queue entry at %lx\n", rq);
773 qe = bus_to_virt (rq);
774
775 fs_dprintk (FS_DEBUG_QUEUE, "queue entry: %08x %08x %08x %08x. ",
776 qe->cmd, qe->p0, qe->p1, qe->p2);
777
778 fs_dprintk (FS_DEBUG_QUEUE, "-> %x: %s\n",
779 STATUS_CODE (qe),
780 res_strings[STATUS_CODE(qe)]);
781
782 pe = bus_to_virt (qe->p0);
783 fs_dprintk (FS_DEBUG_QUEUE, "Pool entry: %08x %08x %08x %08x %p %p.\n",
784 pe->flags, pe->next, pe->bsa, pe->aal_bufsize,
785 pe->skb, pe->fp);
786
787 channo = qe->cmd & 0xffff;
788
789 if (channo < dev->nchannels)
790 atm_vcc = dev->atm_vccs[channo];
791 else
792 atm_vcc = NULL;
793
794
795 switch (STATUS_CODE (qe)) {
796 case 0x1:
797
798 fallthrough;
799 case 0x2:
800 if (atm_vcc) {
801 skb = pe->skb;
802 pe->fp->n--;
803#if 0
804 fs_dprintk (FS_DEBUG_QUEUE, "Got skb: %p\n", skb);
805 if (FS_DEBUG_QUEUE & fs_debug) my_hd (bus_to_virt (pe->bsa), 0x20);
806#endif
807 skb_put (skb, qe->p1 & 0xffff);
808 ATM_SKB(skb)->vcc = atm_vcc;
809 atomic_inc(&atm_vcc->stats->rx);
810 __net_timestamp(skb);
811 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb);
812 atm_vcc->push (atm_vcc, skb);
813 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", pe);
814 kfree (pe);
815 } else {
816 printk (KERN_ERR "Got a receive on a non-open channel %d.\n", channo);
817 }
818 break;
819 case 0x17:
820
821 if (qe->p1 & 0xffff) {
822 pe = bus_to_virt (qe->p0);
823 pe->fp->n--;
824 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", pe->skb);
825 dev_kfree_skb_any (pe->skb);
826 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", pe);
827 kfree (pe);
828 }
829 if (atm_vcc)
830 atomic_inc(&atm_vcc->stats->rx_drop);
831 break;
832 case 0x1f:
833
834 if (atm_vcc)
835 atomic_inc(&atm_vcc->stats->rx_drop);
836 break;
837 default:
838 printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n",
839 STATUS_CODE(qe), res_strings[STATUS_CODE (qe)]);
840 }
841 write_fs (dev, Q_RP(q->offset), Q_INCWRAP);
842 }
843}
844
845
846
847#define DO_DIRECTION(tp) ((tp)->traffic_class != ATM_NONE)
848
849static int fs_open(struct atm_vcc *atm_vcc)
850{
851 struct fs_dev *dev;
852 struct fs_vcc *vcc;
853 struct fs_transmit_config *tc;
854 struct atm_trafprm * txtp;
855 struct atm_trafprm * rxtp;
856
857
858 int error;
859 int bfp;
860 int to;
861 unsigned short tmc0;
862 short vpi = atm_vcc->vpi;
863 int vci = atm_vcc->vci;
864
865 func_enter ();
866
867 dev = FS_DEV(atm_vcc->dev);
868 fs_dprintk (FS_DEBUG_OPEN, "fs: open on dev: %p, vcc at %p\n",
869 dev, atm_vcc);
870
871 if (vci != ATM_VPI_UNSPEC && vpi != ATM_VCI_UNSPEC)
872 set_bit(ATM_VF_ADDR, &atm_vcc->flags);
873
874 if ((atm_vcc->qos.aal != ATM_AAL5) &&
875 (atm_vcc->qos.aal != ATM_AAL2))
876 return -EINVAL;
877
878 fs_dprintk (FS_DEBUG_OPEN, "fs: (itf %d): open %d.%d\n",
879 atm_vcc->dev->number, atm_vcc->vpi, atm_vcc->vci);
880
881
882
883 vcc = kmalloc(sizeof(struct fs_vcc), GFP_KERNEL);
884 fs_dprintk (FS_DEBUG_ALLOC, "Alloc VCC: %p(%zd)\n", vcc, sizeof(struct fs_vcc));
885 if (!vcc) {
886 clear_bit(ATM_VF_ADDR, &atm_vcc->flags);
887 return -ENOMEM;
888 }
889
890 atm_vcc->dev_data = vcc;
891 vcc->last_skb = NULL;
892
893 init_waitqueue_head (&vcc->close_wait);
894
895 txtp = &atm_vcc->qos.txtp;
896 rxtp = &atm_vcc->qos.rxtp;
897
898 if (!test_bit(ATM_VF_PARTIAL, &atm_vcc->flags)) {
899 if (IS_FS50(dev)) {
900
901 for (to=33;to;to--, dev->channo++) {
902
903 if (dev->channo >= 32)
904 dev->channo = 0;
905
906 if (DO_DIRECTION(rxtp) && dev->atm_vccs[dev->channo])
907 continue;
908
909 if (DO_DIRECTION(txtp) && test_bit (dev->channo, dev->tx_inuse))
910 continue;
911
912 break;
913 }
914 if (!to) {
915 printk ("No more free channels for FS50..\n");
916 kfree(vcc);
917 return -EBUSY;
918 }
919 vcc->channo = dev->channo;
920 dev->channo &= dev->channel_mask;
921
922 } else {
923 vcc->channo = (vpi << FS155_VCI_BITS) | (vci);
924 if (((DO_DIRECTION(rxtp) && dev->atm_vccs[vcc->channo])) ||
925 ( DO_DIRECTION(txtp) && test_bit (vcc->channo, dev->tx_inuse))) {
926 printk ("Channel is in use for FS155.\n");
927 kfree(vcc);
928 return -EBUSY;
929 }
930 }
931 fs_dprintk (FS_DEBUG_OPEN, "OK. Allocated channel %x(%d).\n",
932 vcc->channo, vcc->channo);
933 }
934
935 if (DO_DIRECTION (txtp)) {
936 tc = kmalloc (sizeof (struct fs_transmit_config), GFP_KERNEL);
937 fs_dprintk (FS_DEBUG_ALLOC, "Alloc tc: %p(%zd)\n",
938 tc, sizeof (struct fs_transmit_config));
939 if (!tc) {
940 fs_dprintk (FS_DEBUG_OPEN, "fs: can't alloc transmit_config.\n");
941 kfree(vcc);
942 return -ENOMEM;
943 }
944
945
946
947
948
949
950
951 switch (atm_vcc->qos.aal) {
952 case ATM_AAL2:
953 case ATM_AAL0:
954 tc->flags = 0
955 | TC_FLAGS_TRANSPARENT_PAYLOAD
956 | TC_FLAGS_PACKET
957 | (1 << 28)
958 | TC_FLAGS_TYPE_UBR
959 | TC_FLAGS_CAL0;
960 break;
961 case ATM_AAL5:
962 tc->flags = 0
963 | TC_FLAGS_AAL5
964 | TC_FLAGS_PACKET
965 | TC_FLAGS_TYPE_CBR
966 | TC_FLAGS_CAL0;
967 break;
968 default:
969 printk ("Unknown aal: %d\n", atm_vcc->qos.aal);
970 tc->flags = 0;
971 }
972
973
974 tc->atm_hdr = (vpi << 20) | (vci << 4);
975 tmc0 = 0;
976 {
977 int pcr = atm_pcr_goal (txtp);
978
979 fs_dprintk (FS_DEBUG_OPEN, "pcr = %d.\n", pcr);
980
981
982
983 if (IS_FS50(dev)) {
984 if (pcr > 51840000/53/8) pcr = 51840000/53/8;
985 } else {
986 if (pcr > 155520000/53/8) pcr = 155520000/53/8;
987 }
988 if (!pcr) {
989
990 tmc0 = IS_FS50(dev)?0x61BE:0x64c9;
991 } else {
992 int r;
993 if (pcr < 0) {
994 r = ROUND_DOWN;
995 pcr = -pcr;
996 } else {
997 r = ROUND_UP;
998 }
999 error = make_rate (pcr, r, &tmc0, NULL);
1000 if (error) {
1001 kfree(tc);
1002 kfree(vcc);
1003 return error;
1004 }
1005 }
1006 fs_dprintk (FS_DEBUG_OPEN, "pcr = %d.\n", pcr);
1007 }
1008
1009 tc->TMC[0] = tmc0 | 0x4000;
1010 tc->TMC[1] = 0;
1011 tc->TMC[2] = 0;
1012 tc->TMC[3] = 0;
1013
1014 tc->spec = 0;
1015 tc->rtag[0] = 0;
1016
1017 tc->rtag[1] = 0;
1018 tc->rtag[2] = 0;
1019
1020 if (fs_debug & FS_DEBUG_OPEN) {
1021 fs_dprintk (FS_DEBUG_OPEN, "TX config record:\n");
1022 my_hd (tc, sizeof (*tc));
1023 }
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036 submit_command (dev, &dev->hp_txq,
1037 QE_CMD_CONFIG_TX | QE_CMD_IMM_INQ | vcc->channo,
1038 virt_to_bus (tc), 0, 0);
1039
1040 submit_command (dev, &dev->hp_txq,
1041 QE_CMD_TX_EN | QE_CMD_IMM_INQ | vcc->channo,
1042 0, 0, 0);
1043 set_bit (vcc->channo, dev->tx_inuse);
1044 }
1045
1046 if (DO_DIRECTION (rxtp)) {
1047 dev->atm_vccs[vcc->channo] = atm_vcc;
1048
1049 for (bfp = 0;bfp < FS_NR_FREE_POOLS; bfp++)
1050 if (atm_vcc->qos.rxtp.max_sdu <= dev->rx_fp[bfp].bufsize) break;
1051 if (bfp >= FS_NR_FREE_POOLS) {
1052 fs_dprintk (FS_DEBUG_OPEN, "No free pool fits sdu: %d.\n",
1053 atm_vcc->qos.rxtp.max_sdu);
1054
1055
1056
1057 dev->atm_vccs[vcc->channo] = NULL;
1058 kfree (vcc);
1059 return -EINVAL;
1060 }
1061
1062 switch (atm_vcc->qos.aal) {
1063 case ATM_AAL0:
1064 case ATM_AAL2:
1065 submit_command (dev, &dev->hp_txq,
1066 QE_CMD_CONFIG_RX | QE_CMD_IMM_INQ | vcc->channo,
1067 RC_FLAGS_TRANSP |
1068 RC_FLAGS_BFPS_BFP * bfp |
1069 RC_FLAGS_RXBM_PSB, 0, 0);
1070 break;
1071 case ATM_AAL5:
1072 submit_command (dev, &dev->hp_txq,
1073 QE_CMD_CONFIG_RX | QE_CMD_IMM_INQ | vcc->channo,
1074 RC_FLAGS_AAL5 |
1075 RC_FLAGS_BFPS_BFP * bfp |
1076 RC_FLAGS_RXBM_PSB, 0, 0);
1077 break;
1078 }
1079 if (IS_FS50 (dev)) {
1080 submit_command (dev, &dev->hp_txq,
1081 QE_CMD_REG_WR | QE_CMD_IMM_INQ,
1082 0x80 + vcc->channo,
1083 (vpi << 16) | vci, 0 );
1084 }
1085 submit_command (dev, &dev->hp_txq,
1086 QE_CMD_RX_EN | QE_CMD_IMM_INQ | vcc->channo,
1087 0, 0, 0);
1088 }
1089
1090
1091 set_bit(ATM_VF_READY, &atm_vcc->flags);
1092
1093 func_exit ();
1094 return 0;
1095}
1096
1097
1098static void fs_close(struct atm_vcc *atm_vcc)
1099{
1100 struct fs_dev *dev = FS_DEV (atm_vcc->dev);
1101 struct fs_vcc *vcc = FS_VCC (atm_vcc);
1102 struct atm_trafprm * txtp;
1103 struct atm_trafprm * rxtp;
1104
1105 func_enter ();
1106
1107 clear_bit(ATM_VF_READY, &atm_vcc->flags);
1108
1109 fs_dprintk (FS_DEBUG_QSIZE, "--==**[%d]**==--", dev->ntxpckts);
1110 if (vcc->last_skb) {
1111 fs_dprintk (FS_DEBUG_QUEUE, "Waiting for skb %p to be sent.\n",
1112 vcc->last_skb);
1113
1114
1115
1116
1117
1118
1119
1120 wait_event_interruptible(vcc->close_wait, !vcc->last_skb);
1121 }
1122
1123 txtp = &atm_vcc->qos.txtp;
1124 rxtp = &atm_vcc->qos.rxtp;
1125
1126
1127
1128
1129
1130 if (DO_DIRECTION (txtp)) {
1131 submit_command (dev, &dev->hp_txq,
1132 QE_CMD_TX_PURGE_INH | vcc->channo, 0,0,0);
1133 clear_bit (vcc->channo, dev->tx_inuse);
1134 }
1135
1136 if (DO_DIRECTION (rxtp)) {
1137 submit_command (dev, &dev->hp_txq,
1138 QE_CMD_RX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
1139 dev->atm_vccs [vcc->channo] = NULL;
1140
1141
1142 if (IS_FS50 (dev)) {
1143
1144
1145
1146 submit_command (dev, &dev->hp_txq,
1147 QE_CMD_REG_WR | QE_CMD_IMM_INQ,
1148 0x80 + vcc->channo, -1, 0 );
1149 }
1150 }
1151
1152 fs_dprintk (FS_DEBUG_ALLOC, "Free vcc: %p\n", vcc);
1153 kfree (vcc);
1154
1155 func_exit ();
1156}
1157
1158
1159static int fs_send (struct atm_vcc *atm_vcc, struct sk_buff *skb)
1160{
1161 struct fs_dev *dev = FS_DEV (atm_vcc->dev);
1162 struct fs_vcc *vcc = FS_VCC (atm_vcc);
1163 struct FS_BPENTRY *td;
1164
1165 func_enter ();
1166
1167 fs_dprintk (FS_DEBUG_TXMEM, "I");
1168 fs_dprintk (FS_DEBUG_SEND, "Send: atm_vcc %p skb %p vcc %p dev %p\n",
1169 atm_vcc, skb, vcc, dev);
1170
1171 fs_dprintk (FS_DEBUG_ALLOC, "Alloc t-skb: %p (atm_send)\n", skb);
1172
1173 ATM_SKB(skb)->vcc = atm_vcc;
1174
1175 vcc->last_skb = skb;
1176
1177 td = kmalloc (sizeof (struct FS_BPENTRY), GFP_ATOMIC);
1178 fs_dprintk (FS_DEBUG_ALLOC, "Alloc transd: %p(%zd)\n", td, sizeof (struct FS_BPENTRY));
1179 if (!td) {
1180
1181 return -ENOMEM;
1182 }
1183
1184 fs_dprintk (FS_DEBUG_SEND, "first word in buffer: %x\n",
1185 *(int *) skb->data);
1186
1187 td->flags = TD_EPI | TD_DATA | skb->len;
1188 td->next = 0;
1189 td->bsa = virt_to_bus (skb->data);
1190 td->skb = skb;
1191 td->dev = dev;
1192 dev->ntxpckts++;
1193
1194#ifdef DEBUG_EXTRA
1195 da[qd] = td;
1196 dq[qd].flags = td->flags;
1197 dq[qd].next = td->next;
1198 dq[qd].bsa = td->bsa;
1199 dq[qd].skb = td->skb;
1200 dq[qd].dev = td->dev;
1201 qd++;
1202 if (qd >= 60) qd = 0;
1203#endif
1204
1205 submit_queue (dev, &dev->hp_txq,
1206 QE_TRANSMIT_DE | vcc->channo,
1207 virt_to_bus (td), 0,
1208 virt_to_bus (td));
1209
1210 fs_dprintk (FS_DEBUG_QUEUE, "in send: txq %d txrq %d\n",
1211 read_fs (dev, Q_EA (dev->hp_txq.offset)) -
1212 read_fs (dev, Q_SA (dev->hp_txq.offset)),
1213 read_fs (dev, Q_EA (dev->tx_relq.offset)) -
1214 read_fs (dev, Q_SA (dev->tx_relq.offset)));
1215
1216 func_exit ();
1217 return 0;
1218}
1219
1220
1221
1222
1223#if 0
1224static int fs_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
1225{
1226 func_enter ();
1227 func_exit ();
1228 return -ENOIOCTLCMD;
1229}
1230
1231
1232static int fs_getsockopt(struct atm_vcc *vcc,int level,int optname,
1233 void __user *optval,int optlen)
1234{
1235 func_enter ();
1236 func_exit ();
1237 return 0;
1238}
1239
1240
1241static int fs_setsockopt(struct atm_vcc *vcc,int level,int optname,
1242 void __user *optval,unsigned int optlen)
1243{
1244 func_enter ();
1245 func_exit ();
1246 return 0;
1247}
1248
1249
1250static void fs_phy_put(struct atm_dev *dev,unsigned char value,
1251 unsigned long addr)
1252{
1253 func_enter ();
1254 func_exit ();
1255}
1256
1257
1258static unsigned char fs_phy_get(struct atm_dev *dev,unsigned long addr)
1259{
1260 func_enter ();
1261 func_exit ();
1262 return 0;
1263}
1264
1265
1266static int fs_change_qos(struct atm_vcc *vcc,struct atm_qos *qos,int flags)
1267{
1268 func_enter ();
1269 func_exit ();
1270 return 0;
1271};
1272
1273#endif
1274
1275
1276static const struct atmdev_ops ops = {
1277 .open = fs_open,
1278 .close = fs_close,
1279 .send = fs_send,
1280 .owner = THIS_MODULE,
1281
1282
1283
1284
1285
1286
1287};
1288
1289
1290static void undocumented_pci_fix(struct pci_dev *pdev)
1291{
1292 u32 tint;
1293
1294
1295
1296
1297
1298
1299
1300
1301 pci_read_config_dword (pdev, 0x28, &tint);
1302 if (tint != 0x80) {
1303 tint = 0x80;
1304 pci_write_config_dword (pdev, 0x28, tint);
1305 }
1306}
1307
1308
1309
1310
1311
1312
1313
1314static void write_phy(struct fs_dev *dev, int regnum, int val)
1315{
1316 submit_command (dev, &dev->hp_txq, QE_CMD_PRP_WR | QE_CMD_IMM_INQ,
1317 regnum, val, 0);
1318}
1319
1320static int init_phy(struct fs_dev *dev, struct reginit_item *reginit)
1321{
1322 int i;
1323
1324 func_enter ();
1325 while (reginit->reg != PHY_EOF) {
1326 if (reginit->reg == PHY_CLEARALL) {
1327
1328 for (i=0;i<reginit->val;i++) {
1329 write_phy (dev, i, 0);
1330 }
1331 } else {
1332 write_phy (dev, reginit->reg, reginit->val);
1333 }
1334 reginit++;
1335 }
1336 func_exit ();
1337 return 0;
1338}
1339
1340static void reset_chip (struct fs_dev *dev)
1341{
1342 int i;
1343
1344 write_fs (dev, SARMODE0, SARMODE0_SRTS0);
1345
1346
1347 udelay (128);
1348
1349
1350
1351
1352 for (i=0;i < FS_NR_FREE_POOLS;i++) {
1353 write_fs (dev, FP_CNF (RXB_FP(i)), 0);
1354 write_fs (dev, FP_SA (RXB_FP(i)), 0);
1355 write_fs (dev, FP_EA (RXB_FP(i)), 0);
1356 write_fs (dev, FP_CNT (RXB_FP(i)), 0);
1357 write_fs (dev, FP_CTU (RXB_FP(i)), 0);
1358 }
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369 if (IS_FS50 (dev)) {
1370 for (i=0;i<FS50_NR_CHANNELS;i++) {
1371 write_fs (dev, 0x200 + i * 4, -1);
1372 }
1373 }
1374}
1375
1376static void *aligned_kmalloc(int size, gfp_t flags, int alignment)
1377{
1378 void *t;
1379
1380 if (alignment <= 0x10) {
1381 t = kmalloc (size, flags);
1382 if ((unsigned long)t & (alignment-1)) {
1383 printk ("Kmalloc doesn't align things correctly! %p\n", t);
1384 kfree (t);
1385 return aligned_kmalloc (size, flags, alignment * 4);
1386 }
1387 return t;
1388 }
1389 printk (KERN_ERR "Request for > 0x10 alignment not yet implemented (hard!)\n");
1390 return NULL;
1391}
1392
1393static int init_q(struct fs_dev *dev, struct queue *txq, int queue,
1394 int nentries, int is_rq)
1395{
1396 int sz = nentries * sizeof (struct FS_QENTRY);
1397 struct FS_QENTRY *p;
1398
1399 func_enter ();
1400
1401 fs_dprintk (FS_DEBUG_INIT, "Initializing queue at %x: %d entries:\n",
1402 queue, nentries);
1403
1404 p = aligned_kmalloc (sz, GFP_KERNEL, 0x10);
1405 fs_dprintk (FS_DEBUG_ALLOC, "Alloc queue: %p(%d)\n", p, sz);
1406
1407 if (!p) return 0;
1408
1409 write_fs (dev, Q_SA(queue), virt_to_bus(p));
1410 write_fs (dev, Q_EA(queue), virt_to_bus(p+nentries-1));
1411 write_fs (dev, Q_WP(queue), virt_to_bus(p));
1412 write_fs (dev, Q_RP(queue), virt_to_bus(p));
1413 if (is_rq) {
1414
1415
1416
1417 write_fs (dev, Q_CNF(queue), 0 );
1418 }
1419
1420 txq->sa = p;
1421 txq->ea = p;
1422 txq->offset = queue;
1423
1424 func_exit ();
1425 return 1;
1426}
1427
1428
1429static int init_fp(struct fs_dev *dev, struct freepool *fp, int queue,
1430 int bufsize, int nr_buffers)
1431{
1432 func_enter ();
1433
1434 fs_dprintk (FS_DEBUG_INIT, "Initializing free pool at %x:\n", queue);
1435
1436 write_fs (dev, FP_CNF(queue), (bufsize * RBFP_RBS) | RBFP_RBSVAL | RBFP_CME);
1437 write_fs (dev, FP_SA(queue), 0);
1438 write_fs (dev, FP_EA(queue), 0);
1439 write_fs (dev, FP_CTU(queue), 0);
1440 write_fs (dev, FP_CNT(queue), 0);
1441
1442 fp->offset = queue;
1443 fp->bufsize = bufsize;
1444 fp->nr_buffers = nr_buffers;
1445
1446 func_exit ();
1447 return 1;
1448}
1449
1450
1451static inline int nr_buffers_in_freepool (struct fs_dev *dev, struct freepool *fp)
1452{
1453#if 0
1454
1455 return read_fs (dev, FP_CNT (fp->offset));
1456#else
1457 return fp->n;
1458#endif
1459}
1460
1461
1462
1463
1464
1465
1466static void top_off_fp (struct fs_dev *dev, struct freepool *fp,
1467 gfp_t gfp_flags)
1468{
1469 struct FS_BPENTRY *qe, *ne;
1470 struct sk_buff *skb;
1471 int n = 0;
1472 u32 qe_tmp;
1473
1474 fs_dprintk (FS_DEBUG_QUEUE, "Topping off queue at %x (%d-%d/%d)\n",
1475 fp->offset, read_fs (dev, FP_CNT (fp->offset)), fp->n,
1476 fp->nr_buffers);
1477 while (nr_buffers_in_freepool(dev, fp) < fp->nr_buffers) {
1478
1479 skb = alloc_skb (fp->bufsize, gfp_flags);
1480 fs_dprintk (FS_DEBUG_ALLOC, "Alloc rec-skb: %p(%d)\n", skb, fp->bufsize);
1481 if (!skb) break;
1482 ne = kmalloc (sizeof (struct FS_BPENTRY), gfp_flags);
1483 fs_dprintk (FS_DEBUG_ALLOC, "Alloc rec-d: %p(%zd)\n", ne, sizeof (struct FS_BPENTRY));
1484 if (!ne) {
1485 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", skb);
1486 dev_kfree_skb_any (skb);
1487 break;
1488 }
1489
1490 fs_dprintk (FS_DEBUG_QUEUE, "Adding skb %p desc %p -> %p(%p) ",
1491 skb, ne, skb->data, skb->head);
1492 n++;
1493 ne->flags = FP_FLAGS_EPI | fp->bufsize;
1494 ne->next = virt_to_bus (NULL);
1495 ne->bsa = virt_to_bus (skb->data);
1496 ne->aal_bufsize = fp->bufsize;
1497 ne->skb = skb;
1498 ne->fp = fp;
1499
1500
1501
1502
1503
1504
1505
1506 qe_tmp = read_fs (dev, FP_EA(fp->offset));
1507 fs_dprintk (FS_DEBUG_QUEUE, "link at %x\n", qe_tmp);
1508 if (qe_tmp) {
1509 qe = bus_to_virt ((long) qe_tmp);
1510 qe->next = virt_to_bus(ne);
1511 qe->flags &= ~FP_FLAGS_EPI;
1512 } else
1513 write_fs (dev, FP_SA(fp->offset), virt_to_bus(ne));
1514
1515 write_fs (dev, FP_EA(fp->offset), virt_to_bus (ne));
1516 fp->n++;
1517 write_fs (dev, FP_CTU(fp->offset), 1);
1518 }
1519
1520 fs_dprintk (FS_DEBUG_QUEUE, "Added %d entries. \n", n);
1521}
1522
1523static void free_queue(struct fs_dev *dev, struct queue *txq)
1524{
1525 func_enter ();
1526
1527 write_fs (dev, Q_SA(txq->offset), 0);
1528 write_fs (dev, Q_EA(txq->offset), 0);
1529 write_fs (dev, Q_RP(txq->offset), 0);
1530 write_fs (dev, Q_WP(txq->offset), 0);
1531
1532
1533 fs_dprintk (FS_DEBUG_ALLOC, "Free queue: %p\n", txq->sa);
1534 kfree (txq->sa);
1535
1536 func_exit ();
1537}
1538
1539static void free_freepool(struct fs_dev *dev, struct freepool *fp)
1540{
1541 func_enter ();
1542
1543 write_fs (dev, FP_CNF(fp->offset), 0);
1544 write_fs (dev, FP_SA (fp->offset), 0);
1545 write_fs (dev, FP_EA (fp->offset), 0);
1546 write_fs (dev, FP_CNT(fp->offset), 0);
1547 write_fs (dev, FP_CTU(fp->offset), 0);
1548
1549 func_exit ();
1550}
1551
1552
1553
1554static irqreturn_t fs_irq (int irq, void *dev_id)
1555{
1556 int i;
1557 u32 status;
1558 struct fs_dev *dev = dev_id;
1559
1560 status = read_fs (dev, ISR);
1561 if (!status)
1562 return IRQ_NONE;
1563
1564 func_enter ();
1565
1566#ifdef IRQ_RATE_LIMIT
1567
1568
1569 {
1570 static int lastjif;
1571 static int nintr=0;
1572
1573 if (lastjif == jiffies) {
1574 if (++nintr > IRQ_RATE_LIMIT) {
1575 free_irq (dev->irq, dev_id);
1576 printk (KERN_ERR "fs: Too many interrupts. Turning off interrupt %d.\n",
1577 dev->irq);
1578 }
1579 } else {
1580 lastjif = jiffies;
1581 nintr = 0;
1582 }
1583 }
1584#endif
1585 fs_dprintk (FS_DEBUG_QUEUE, "in intr: txq %d txrq %d\n",
1586 read_fs (dev, Q_EA (dev->hp_txq.offset)) -
1587 read_fs (dev, Q_SA (dev->hp_txq.offset)),
1588 read_fs (dev, Q_EA (dev->tx_relq.offset)) -
1589 read_fs (dev, Q_SA (dev->tx_relq.offset)));
1590
1591
1592 if (fs_debug & FS_DEBUG_IRQ) {
1593
1594
1595 fs_dprintk (FS_DEBUG_IRQ, "IRQ status:");
1596 for (i=0;i<27;i++)
1597 if (status & (1 << i))
1598 fs_dprintk (FS_DEBUG_IRQ, " %s", irq_bitname[i]);
1599 fs_dprintk (FS_DEBUG_IRQ, "\n");
1600 }
1601
1602 if (status & ISR_RBRQ0_W) {
1603 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (0)!!!!\n");
1604 process_incoming (dev, &dev->rx_rq[0]);
1605
1606 top_off_fp (dev, &dev->rx_fp[0], GFP_ATOMIC);
1607 top_off_fp (dev, &dev->rx_fp[1], GFP_ATOMIC);
1608 }
1609
1610 if (status & ISR_RBRQ1_W) {
1611 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (1)!!!!\n");
1612 process_incoming (dev, &dev->rx_rq[1]);
1613 top_off_fp (dev, &dev->rx_fp[2], GFP_ATOMIC);
1614 top_off_fp (dev, &dev->rx_fp[3], GFP_ATOMIC);
1615 }
1616
1617 if (status & ISR_RBRQ2_W) {
1618 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (2)!!!!\n");
1619 process_incoming (dev, &dev->rx_rq[2]);
1620 top_off_fp (dev, &dev->rx_fp[4], GFP_ATOMIC);
1621 top_off_fp (dev, &dev->rx_fp[5], GFP_ATOMIC);
1622 }
1623
1624 if (status & ISR_RBRQ3_W) {
1625 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (3)!!!!\n");
1626 process_incoming (dev, &dev->rx_rq[3]);
1627 top_off_fp (dev, &dev->rx_fp[6], GFP_ATOMIC);
1628 top_off_fp (dev, &dev->rx_fp[7], GFP_ATOMIC);
1629 }
1630
1631 if (status & ISR_CSQ_W) {
1632 fs_dprintk (FS_DEBUG_IRQ, "Command executed ok!\n");
1633 process_return_queue (dev, &dev->st_q);
1634 }
1635
1636 if (status & ISR_TBRQ_W) {
1637 fs_dprintk (FS_DEBUG_IRQ, "Data transmitted!\n");
1638 process_txdone_queue (dev, &dev->tx_relq);
1639 }
1640
1641 func_exit ();
1642 return IRQ_HANDLED;
1643}
1644
1645
1646#ifdef FS_POLL_FREQ
1647static void fs_poll (struct timer_list *t)
1648{
1649 struct fs_dev *dev = from_timer(dev, t, timer);
1650
1651 fs_irq (0, dev);
1652 dev->timer.expires = jiffies + FS_POLL_FREQ;
1653 add_timer (&dev->timer);
1654}
1655#endif
1656
1657static int fs_init(struct fs_dev *dev)
1658{
1659 struct pci_dev *pci_dev;
1660 int isr, to;
1661 int i;
1662
1663 func_enter ();
1664 pci_dev = dev->pci_dev;
1665
1666 printk (KERN_INFO "found a FireStream %d card, base %16llx, irq%d.\n",
1667 IS_FS50(dev)?50:155,
1668 (unsigned long long)pci_resource_start(pci_dev, 0),
1669 dev->pci_dev->irq);
1670
1671 if (fs_debug & FS_DEBUG_INIT)
1672 my_hd ((unsigned char *) dev, sizeof (*dev));
1673
1674 undocumented_pci_fix (pci_dev);
1675
1676 dev->hw_base = pci_resource_start(pci_dev, 0);
1677
1678 dev->base = ioremap(dev->hw_base, 0x1000);
1679
1680 reset_chip (dev);
1681
1682 write_fs (dev, SARMODE0, 0
1683 | (0 * SARMODE0_SHADEN)
1684 | (1 * SARMODE0_INTMODE_READCLEAR)
1685 | (1 * SARMODE0_CWRE)
1686 | (IS_FS50(dev) ? SARMODE0_PRPWT_FS50_5:
1687 SARMODE0_PRPWT_FS155_3)
1688 | (1 * SARMODE0_CALSUP_1)
1689 | (IS_FS50(dev) ? (0
1690 | SARMODE0_RXVCS_32
1691 | SARMODE0_ABRVCS_32
1692 | SARMODE0_TXVCS_32):
1693 (0
1694 | SARMODE0_RXVCS_1k
1695 | SARMODE0_ABRVCS_1k
1696 | SARMODE0_TXVCS_1k)));
1697
1698
1699
1700 to = 100;
1701 while (--to) {
1702 isr = read_fs (dev, ISR);
1703
1704
1705 if (isr & ISR_INIT_ERR) {
1706 printk (KERN_ERR "Error initializing the FS... \n");
1707 goto unmap;
1708 }
1709 if (isr & ISR_INIT) {
1710 fs_dprintk (FS_DEBUG_INIT, "Ha! Initialized OK!\n");
1711 break;
1712 }
1713
1714
1715 msleep(10);
1716 }
1717
1718 if (!to) {
1719 printk (KERN_ERR "timeout initializing the FS... \n");
1720 goto unmap;
1721 }
1722
1723
1724 dev->channel_mask = 0x1f;
1725 dev->channo = 0;
1726
1727
1728 write_fs (dev, SARMODE1, 0
1729 | (fs_keystream * SARMODE1_DEFHEC)
1730 | ((loopback == 1) * SARMODE1_TSTLP)
1731 | (1 * SARMODE1_DCRM)
1732 | (1 * SARMODE1_DCOAM)
1733 | (0 * SARMODE1_OAMCRC)
1734 | (0 * SARMODE1_DUMPE)
1735 | (0 * SARMODE1_GPLEN)
1736 | (0 * SARMODE1_GNAM)
1737 | (0 * SARMODE1_GVAS)
1738 | (0 * SARMODE1_GPAS)
1739 | (1 * SARMODE1_GPRI)
1740 | (0 * SARMODE1_PMS)
1741 | (0 * SARMODE1_GFCR)
1742 | (1 * SARMODE1_HECM2)
1743 | (1 * SARMODE1_HECM1)
1744 | (1 * SARMODE1_HECM0)
1745 | (1 << 12)
1746 | (0 * 0xff) );
1747
1748
1749
1750
1751
1752 write_fs (dev, TMCONF, 0x0000000f);
1753 write_fs (dev, CALPRESCALE, 0x01010101 * num);
1754 write_fs (dev, 0x80, 0x000F00E4);
1755
1756
1757 write_fs (dev, CELLOSCONF, 0
1758 | ( 0 * CELLOSCONF_CEN)
1759 | ( CELLOSCONF_SC1)
1760 | (0x80 * CELLOSCONF_COBS)
1761 | (num * CELLOSCONF_COPK)
1762 | (num * CELLOSCONF_COST));
1763
1764
1765
1766 write_fs (dev, CELLOSCONF_COST, 0x0B809191);
1767
1768 if (IS_FS50 (dev)) {
1769 write_fs (dev, RAS0, RAS0_DCD_XHLT);
1770 dev->atm_dev->ci_range.vpi_bits = 12;
1771 dev->atm_dev->ci_range.vci_bits = 16;
1772 dev->nchannels = FS50_NR_CHANNELS;
1773 } else {
1774 write_fs (dev, RAS0, RAS0_DCD_XHLT
1775 | (((1 << FS155_VPI_BITS) - 1) * RAS0_VPSEL)
1776 | (((1 << FS155_VCI_BITS) - 1) * RAS0_VCSEL));
1777
1778
1779 dev->atm_dev->ci_range.vpi_bits = FS155_VPI_BITS;
1780 dev->atm_dev->ci_range.vci_bits = FS155_VCI_BITS;
1781
1782
1783 write_fs (dev, RAC, 0);
1784
1785
1786
1787
1788
1789 write_fs (dev, RAM, (1 << (28 - FS155_VPI_BITS - FS155_VCI_BITS)) - 1);
1790 dev->nchannels = FS155_NR_CHANNELS;
1791 }
1792 dev->atm_vccs = kcalloc (dev->nchannels, sizeof (struct atm_vcc *),
1793 GFP_KERNEL);
1794 fs_dprintk (FS_DEBUG_ALLOC, "Alloc atmvccs: %p(%zd)\n",
1795 dev->atm_vccs, dev->nchannels * sizeof (struct atm_vcc *));
1796
1797 if (!dev->atm_vccs) {
1798 printk (KERN_WARNING "Couldn't allocate memory for VCC buffers. Woops!\n");
1799
1800 goto unmap;
1801 }
1802
1803 dev->tx_inuse = kzalloc (dev->nchannels / 8 , GFP_KERNEL);
1804 fs_dprintk (FS_DEBUG_ALLOC, "Alloc tx_inuse: %p(%d)\n",
1805 dev->atm_vccs, dev->nchannels / 8);
1806
1807 if (!dev->tx_inuse) {
1808 printk (KERN_WARNING "Couldn't allocate memory for tx_inuse bits!\n");
1809
1810 goto unmap;
1811 }
1812
1813
1814
1815
1816 write_fs (dev, DMAMR, DMAMR_TX_MODE_FULL);
1817
1818 init_q (dev, &dev->hp_txq, TX_PQ(TXQ_HP), TXQ_NENTRIES, 0);
1819 init_q (dev, &dev->lp_txq, TX_PQ(TXQ_LP), TXQ_NENTRIES, 0);
1820 init_q (dev, &dev->tx_relq, TXB_RQ, TXQ_NENTRIES, 1);
1821 init_q (dev, &dev->st_q, ST_Q, TXQ_NENTRIES, 1);
1822
1823 for (i=0;i < FS_NR_FREE_POOLS;i++) {
1824 init_fp (dev, &dev->rx_fp[i], RXB_FP(i),
1825 rx_buf_sizes[i], rx_pool_sizes[i]);
1826 top_off_fp (dev, &dev->rx_fp[i], GFP_KERNEL);
1827 }
1828
1829
1830 for (i=0;i < FS_NR_RX_QUEUES;i++)
1831 init_q (dev, &dev->rx_rq[i], RXB_RQ(i), RXRQ_NENTRIES, 1);
1832
1833 dev->irq = pci_dev->irq;
1834 if (request_irq (dev->irq, fs_irq, IRQF_SHARED, "firestream", dev)) {
1835 printk (KERN_WARNING "couldn't get irq %d for firestream.\n", pci_dev->irq);
1836
1837 goto unmap;
1838 }
1839 fs_dprintk (FS_DEBUG_INIT, "Grabbed irq %d for dev at %p.\n", dev->irq, dev);
1840
1841
1842
1843 write_fs (dev, IMR, 0
1844 | ISR_RBRQ0_W
1845 | ISR_RBRQ1_W
1846 | ISR_RBRQ2_W
1847 | ISR_RBRQ3_W
1848 | ISR_TBRQ_W
1849 | ISR_CSQ_W);
1850
1851 write_fs (dev, SARMODE0, 0
1852 | (0 * SARMODE0_SHADEN)
1853 | (1 * SARMODE0_GINT)
1854 | (1 * SARMODE0_INTMODE_READCLEAR)
1855 | (0 * SARMODE0_CWRE)
1856 | (IS_FS50(dev)?SARMODE0_PRPWT_FS50_5:
1857 SARMODE0_PRPWT_FS155_3)
1858 | (1 * SARMODE0_CALSUP_1)
1859 | (IS_FS50 (dev)?(0
1860 | SARMODE0_RXVCS_32
1861 | SARMODE0_ABRVCS_32
1862 | SARMODE0_TXVCS_32):
1863 (0
1864 | SARMODE0_RXVCS_1k
1865 | SARMODE0_ABRVCS_1k
1866 | SARMODE0_TXVCS_1k))
1867 | (1 * SARMODE0_RUN));
1868
1869 init_phy (dev, PHY_NTC_INIT);
1870
1871 if (loopback == 2) {
1872 write_phy (dev, 0x39, 0x000e);
1873 }
1874
1875#ifdef FS_POLL_FREQ
1876 timer_setup(&dev->timer, fs_poll, 0);
1877 dev->timer.expires = jiffies + FS_POLL_FREQ;
1878 add_timer (&dev->timer);
1879#endif
1880
1881 dev->atm_dev->dev_data = dev;
1882
1883 func_exit ();
1884 return 0;
1885unmap:
1886 iounmap(dev->base);
1887 return 1;
1888}
1889
1890static int firestream_init_one(struct pci_dev *pci_dev,
1891 const struct pci_device_id *ent)
1892{
1893 struct atm_dev *atm_dev;
1894 struct fs_dev *fs_dev;
1895
1896 if (pci_enable_device(pci_dev))
1897 goto err_out;
1898
1899 fs_dev = kzalloc (sizeof (struct fs_dev), GFP_KERNEL);
1900 fs_dprintk (FS_DEBUG_ALLOC, "Alloc fs-dev: %p(%zd)\n",
1901 fs_dev, sizeof (struct fs_dev));
1902 if (!fs_dev)
1903 goto err_out;
1904 atm_dev = atm_dev_register("fs", &pci_dev->dev, &ops, -1, NULL);
1905 if (!atm_dev)
1906 goto err_out_free_fs_dev;
1907
1908 fs_dev->pci_dev = pci_dev;
1909 fs_dev->atm_dev = atm_dev;
1910 fs_dev->flags = ent->driver_data;
1911
1912 if (fs_init(fs_dev))
1913 goto err_out_free_atm_dev;
1914
1915 fs_dev->next = fs_boards;
1916 fs_boards = fs_dev;
1917 return 0;
1918
1919 err_out_free_atm_dev:
1920 atm_dev_deregister(atm_dev);
1921 err_out_free_fs_dev:
1922 kfree(fs_dev);
1923 err_out:
1924 return -ENODEV;
1925}
1926
1927static void firestream_remove_one(struct pci_dev *pdev)
1928{
1929 int i;
1930 struct fs_dev *dev, *nxtdev;
1931 struct fs_vcc *vcc;
1932 struct FS_BPENTRY *fp, *nxt;
1933
1934 func_enter ();
1935
1936#if 0
1937 printk ("hptxq:\n");
1938 for (i=0;i<60;i++) {
1939 printk ("%d: %08x %08x %08x %08x \n",
1940 i, pq[qp].cmd, pq[qp].p0, pq[qp].p1, pq[qp].p2);
1941 qp++;
1942 if (qp >= 60) qp = 0;
1943 }
1944
1945 printk ("descriptors:\n");
1946 for (i=0;i<60;i++) {
1947 printk ("%d: %p: %08x %08x %p %p\n",
1948 i, da[qd], dq[qd].flags, dq[qd].bsa, dq[qd].skb, dq[qd].dev);
1949 qd++;
1950 if (qd >= 60) qd = 0;
1951 }
1952#endif
1953
1954 for (dev = fs_boards;dev != NULL;dev=nxtdev) {
1955 fs_dprintk (FS_DEBUG_CLEANUP, "Releasing resources for dev at %p.\n", dev);
1956
1957
1958
1959 for (i=0;i < dev->nchannels;i++) {
1960 if (dev->atm_vccs[i]) {
1961 vcc = FS_VCC (dev->atm_vccs[i]);
1962 submit_command (dev, &dev->hp_txq,
1963 QE_CMD_TX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
1964 submit_command (dev, &dev->hp_txq,
1965 QE_CMD_RX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
1966
1967 }
1968 }
1969
1970
1971
1972 for (i=0;i < FS_NR_FREE_POOLS;i++) {
1973 for (fp=bus_to_virt (read_fs (dev, FP_SA(dev->rx_fp[i].offset)));
1974 !(fp->flags & FP_FLAGS_EPI);fp = nxt) {
1975 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", fp->skb);
1976 dev_kfree_skb_any (fp->skb);
1977 nxt = bus_to_virt (fp->next);
1978 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", fp);
1979 kfree (fp);
1980 }
1981 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", fp->skb);
1982 dev_kfree_skb_any (fp->skb);
1983 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", fp);
1984 kfree (fp);
1985 }
1986
1987
1988
1989 reset_chip (dev);
1990
1991 fs_dprintk (FS_DEBUG_CLEANUP, "Freeing irq%d.\n", dev->irq);
1992 free_irq (dev->irq, dev);
1993 del_timer_sync (&dev->timer);
1994
1995 atm_dev_deregister(dev->atm_dev);
1996 free_queue (dev, &dev->hp_txq);
1997 free_queue (dev, &dev->lp_txq);
1998 free_queue (dev, &dev->tx_relq);
1999 free_queue (dev, &dev->st_q);
2000
2001 fs_dprintk (FS_DEBUG_ALLOC, "Free atmvccs: %p\n", dev->atm_vccs);
2002 kfree (dev->atm_vccs);
2003
2004 for (i=0;i< FS_NR_FREE_POOLS;i++)
2005 free_freepool (dev, &dev->rx_fp[i]);
2006
2007 for (i=0;i < FS_NR_RX_QUEUES;i++)
2008 free_queue (dev, &dev->rx_rq[i]);
2009
2010 iounmap(dev->base);
2011 fs_dprintk (FS_DEBUG_ALLOC, "Free fs-dev: %p\n", dev);
2012 nxtdev = dev->next;
2013 kfree (dev);
2014 }
2015
2016 func_exit ();
2017}
2018
2019static const struct pci_device_id firestream_pci_tbl[] = {
2020 { PCI_VDEVICE(FUJITSU_ME, PCI_DEVICE_ID_FUJITSU_FS50), FS_IS50},
2021 { PCI_VDEVICE(FUJITSU_ME, PCI_DEVICE_ID_FUJITSU_FS155), FS_IS155},
2022 { 0, }
2023};
2024
2025MODULE_DEVICE_TABLE(pci, firestream_pci_tbl);
2026
2027static struct pci_driver firestream_driver = {
2028 .name = "firestream",
2029 .id_table = firestream_pci_tbl,
2030 .probe = firestream_init_one,
2031 .remove = firestream_remove_one,
2032};
2033
2034static int __init firestream_init_module (void)
2035{
2036 int error;
2037
2038 func_enter ();
2039 error = pci_register_driver(&firestream_driver);
2040 func_exit ();
2041 return error;
2042}
2043
2044static void __exit firestream_cleanup_module(void)
2045{
2046 pci_unregister_driver(&firestream_driver);
2047}
2048
2049module_init(firestream_init_module);
2050module_exit(firestream_cleanup_module);
2051
2052MODULE_LICENSE("GPL");
2053
2054
2055
2056