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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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137
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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360
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 case 0x2:
799 if (atm_vcc) {
800 skb = pe->skb;
801 pe->fp->n--;
802#if 0
803 fs_dprintk (FS_DEBUG_QUEUE, "Got skb: %p\n", skb);
804 if (FS_DEBUG_QUEUE & fs_debug) my_hd (bus_to_virt (pe->bsa), 0x20);
805#endif
806 skb_put (skb, qe->p1 & 0xffff);
807 ATM_SKB(skb)->vcc = atm_vcc;
808 atomic_inc(&atm_vcc->stats->rx);
809 __net_timestamp(skb);
810 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb);
811 atm_vcc->push (atm_vcc, skb);
812 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", pe);
813 kfree (pe);
814 } else {
815 printk (KERN_ERR "Got a receive on a non-open channel %d.\n", channo);
816 }
817 break;
818 case 0x17:
819
820 if (qe->p1 & 0xffff) {
821 pe = bus_to_virt (qe->p0);
822 pe->fp->n--;
823 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", pe->skb);
824 dev_kfree_skb_any (pe->skb);
825 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", pe);
826 kfree (pe);
827 }
828 if (atm_vcc)
829 atomic_inc(&atm_vcc->stats->rx_drop);
830 break;
831 case 0x1f:
832
833 if (atm_vcc)
834 atomic_inc(&atm_vcc->stats->rx_drop);
835 break;
836 default:
837 printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n",
838 STATUS_CODE(qe), res_strings[STATUS_CODE (qe)]);
839 }
840 write_fs (dev, Q_RP(q->offset), Q_INCWRAP);
841 }
842}
843
844
845
846#define DO_DIRECTION(tp) ((tp)->traffic_class != ATM_NONE)
847
848static int fs_open(struct atm_vcc *atm_vcc)
849{
850 struct fs_dev *dev;
851 struct fs_vcc *vcc;
852 struct fs_transmit_config *tc;
853 struct atm_trafprm * txtp;
854 struct atm_trafprm * rxtp;
855
856
857 int error;
858 int bfp;
859 int to;
860 unsigned short tmc0;
861 short vpi = atm_vcc->vpi;
862 int vci = atm_vcc->vci;
863
864 func_enter ();
865
866 dev = FS_DEV(atm_vcc->dev);
867 fs_dprintk (FS_DEBUG_OPEN, "fs: open on dev: %p, vcc at %p\n",
868 dev, atm_vcc);
869
870 if (vci != ATM_VPI_UNSPEC && vpi != ATM_VCI_UNSPEC)
871 set_bit(ATM_VF_ADDR, &atm_vcc->flags);
872
873 if ((atm_vcc->qos.aal != ATM_AAL5) &&
874 (atm_vcc->qos.aal != ATM_AAL2))
875 return -EINVAL;
876
877 fs_dprintk (FS_DEBUG_OPEN, "fs: (itf %d): open %d.%d\n",
878 atm_vcc->dev->number, atm_vcc->vpi, atm_vcc->vci);
879
880
881
882 vcc = kmalloc(sizeof(struct fs_vcc), GFP_KERNEL);
883 fs_dprintk (FS_DEBUG_ALLOC, "Alloc VCC: %p(%zd)\n", vcc, sizeof(struct fs_vcc));
884 if (!vcc) {
885 clear_bit(ATM_VF_ADDR, &atm_vcc->flags);
886 return -ENOMEM;
887 }
888
889 atm_vcc->dev_data = vcc;
890 vcc->last_skb = NULL;
891
892 init_waitqueue_head (&vcc->close_wait);
893
894 txtp = &atm_vcc->qos.txtp;
895 rxtp = &atm_vcc->qos.rxtp;
896
897 if (!test_bit(ATM_VF_PARTIAL, &atm_vcc->flags)) {
898 if (IS_FS50(dev)) {
899
900 for (to=33;to;to--, dev->channo++) {
901
902 if (dev->channo >= 32)
903 dev->channo = 0;
904
905 if (DO_DIRECTION(rxtp) && dev->atm_vccs[dev->channo])
906 continue;
907
908 if (DO_DIRECTION(txtp) && test_bit (dev->channo, dev->tx_inuse))
909 continue;
910
911 break;
912 }
913 if (!to) {
914 printk ("No more free channels for FS50..\n");
915 kfree(vcc);
916 return -EBUSY;
917 }
918 vcc->channo = dev->channo;
919 dev->channo &= dev->channel_mask;
920
921 } else {
922 vcc->channo = (vpi << FS155_VCI_BITS) | (vci);
923 if (((DO_DIRECTION(rxtp) && dev->atm_vccs[vcc->channo])) ||
924 ( DO_DIRECTION(txtp) && test_bit (vcc->channo, dev->tx_inuse))) {
925 printk ("Channel is in use for FS155.\n");
926 kfree(vcc);
927 return -EBUSY;
928 }
929 }
930 fs_dprintk (FS_DEBUG_OPEN, "OK. Allocated channel %x(%d).\n",
931 vcc->channo, vcc->channo);
932 }
933
934 if (DO_DIRECTION (txtp)) {
935 tc = kmalloc (sizeof (struct fs_transmit_config), GFP_KERNEL);
936 fs_dprintk (FS_DEBUG_ALLOC, "Alloc tc: %p(%zd)\n",
937 tc, sizeof (struct fs_transmit_config));
938 if (!tc) {
939 fs_dprintk (FS_DEBUG_OPEN, "fs: can't alloc transmit_config.\n");
940 kfree(vcc);
941 return -ENOMEM;
942 }
943
944
945
946
947
948
949
950 switch (atm_vcc->qos.aal) {
951 case ATM_AAL2:
952 case ATM_AAL0:
953 tc->flags = 0
954 | TC_FLAGS_TRANSPARENT_PAYLOAD
955 | TC_FLAGS_PACKET
956 | (1 << 28)
957 | TC_FLAGS_TYPE_UBR
958 | TC_FLAGS_CAL0;
959 break;
960 case ATM_AAL5:
961 tc->flags = 0
962 | TC_FLAGS_AAL5
963 | TC_FLAGS_PACKET
964 | TC_FLAGS_TYPE_CBR
965 | TC_FLAGS_CAL0;
966 break;
967 default:
968 printk ("Unknown aal: %d\n", atm_vcc->qos.aal);
969 tc->flags = 0;
970 }
971
972
973 tc->atm_hdr = (vpi << 20) | (vci << 4);
974 tmc0 = 0;
975 {
976 int pcr = atm_pcr_goal (txtp);
977
978 fs_dprintk (FS_DEBUG_OPEN, "pcr = %d.\n", pcr);
979
980
981
982 if (IS_FS50(dev)) {
983 if (pcr > 51840000/53/8) pcr = 51840000/53/8;
984 } else {
985 if (pcr > 155520000/53/8) pcr = 155520000/53/8;
986 }
987 if (!pcr) {
988
989 tmc0 = IS_FS50(dev)?0x61BE:0x64c9;
990 } else {
991 int r;
992 if (pcr < 0) {
993 r = ROUND_DOWN;
994 pcr = -pcr;
995 } else {
996 r = ROUND_UP;
997 }
998 error = make_rate (pcr, r, &tmc0, NULL);
999 if (error) {
1000 kfree(tc);
1001 kfree(vcc);
1002 return error;
1003 }
1004 }
1005 fs_dprintk (FS_DEBUG_OPEN, "pcr = %d.\n", pcr);
1006 }
1007
1008 tc->TMC[0] = tmc0 | 0x4000;
1009 tc->TMC[1] = 0;
1010 tc->TMC[2] = 0;
1011 tc->TMC[3] = 0;
1012
1013 tc->spec = 0;
1014 tc->rtag[0] = 0;
1015
1016 tc->rtag[1] = 0;
1017 tc->rtag[2] = 0;
1018
1019 if (fs_debug & FS_DEBUG_OPEN) {
1020 fs_dprintk (FS_DEBUG_OPEN, "TX config record:\n");
1021 my_hd (tc, sizeof (*tc));
1022 }
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035 submit_command (dev, &dev->hp_txq,
1036 QE_CMD_CONFIG_TX | QE_CMD_IMM_INQ | vcc->channo,
1037 virt_to_bus (tc), 0, 0);
1038
1039 submit_command (dev, &dev->hp_txq,
1040 QE_CMD_TX_EN | QE_CMD_IMM_INQ | vcc->channo,
1041 0, 0, 0);
1042 set_bit (vcc->channo, dev->tx_inuse);
1043 }
1044
1045 if (DO_DIRECTION (rxtp)) {
1046 dev->atm_vccs[vcc->channo] = atm_vcc;
1047
1048 for (bfp = 0;bfp < FS_NR_FREE_POOLS; bfp++)
1049 if (atm_vcc->qos.rxtp.max_sdu <= dev->rx_fp[bfp].bufsize) break;
1050 if (bfp >= FS_NR_FREE_POOLS) {
1051 fs_dprintk (FS_DEBUG_OPEN, "No free pool fits sdu: %d.\n",
1052 atm_vcc->qos.rxtp.max_sdu);
1053
1054
1055
1056 dev->atm_vccs[vcc->channo] = NULL;
1057 kfree (vcc);
1058 return -EINVAL;
1059 }
1060
1061 switch (atm_vcc->qos.aal) {
1062 case ATM_AAL0:
1063 case ATM_AAL2:
1064 submit_command (dev, &dev->hp_txq,
1065 QE_CMD_CONFIG_RX | QE_CMD_IMM_INQ | vcc->channo,
1066 RC_FLAGS_TRANSP |
1067 RC_FLAGS_BFPS_BFP * bfp |
1068 RC_FLAGS_RXBM_PSB, 0, 0);
1069 break;
1070 case ATM_AAL5:
1071 submit_command (dev, &dev->hp_txq,
1072 QE_CMD_CONFIG_RX | QE_CMD_IMM_INQ | vcc->channo,
1073 RC_FLAGS_AAL5 |
1074 RC_FLAGS_BFPS_BFP * bfp |
1075 RC_FLAGS_RXBM_PSB, 0, 0);
1076 break;
1077 }
1078 if (IS_FS50 (dev)) {
1079 submit_command (dev, &dev->hp_txq,
1080 QE_CMD_REG_WR | QE_CMD_IMM_INQ,
1081 0x80 + vcc->channo,
1082 (vpi << 16) | vci, 0 );
1083 }
1084 submit_command (dev, &dev->hp_txq,
1085 QE_CMD_RX_EN | QE_CMD_IMM_INQ | vcc->channo,
1086 0, 0, 0);
1087 }
1088
1089
1090 set_bit(ATM_VF_READY, &atm_vcc->flags);
1091
1092 func_exit ();
1093 return 0;
1094}
1095
1096
1097static void fs_close(struct atm_vcc *atm_vcc)
1098{
1099 struct fs_dev *dev = FS_DEV (atm_vcc->dev);
1100 struct fs_vcc *vcc = FS_VCC (atm_vcc);
1101 struct atm_trafprm * txtp;
1102 struct atm_trafprm * rxtp;
1103
1104 func_enter ();
1105
1106 clear_bit(ATM_VF_READY, &atm_vcc->flags);
1107
1108 fs_dprintk (FS_DEBUG_QSIZE, "--==**[%d]**==--", dev->ntxpckts);
1109 if (vcc->last_skb) {
1110 fs_dprintk (FS_DEBUG_QUEUE, "Waiting for skb %p to be sent.\n",
1111 vcc->last_skb);
1112
1113
1114
1115
1116
1117
1118
1119 wait_event_interruptible(vcc->close_wait, !vcc->last_skb);
1120 }
1121
1122 txtp = &atm_vcc->qos.txtp;
1123 rxtp = &atm_vcc->qos.rxtp;
1124
1125
1126
1127
1128
1129 if (DO_DIRECTION (txtp)) {
1130 submit_command (dev, &dev->hp_txq,
1131 QE_CMD_TX_PURGE_INH | vcc->channo, 0,0,0);
1132 clear_bit (vcc->channo, dev->tx_inuse);
1133 }
1134
1135 if (DO_DIRECTION (rxtp)) {
1136 submit_command (dev, &dev->hp_txq,
1137 QE_CMD_RX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
1138 dev->atm_vccs [vcc->channo] = NULL;
1139
1140
1141 if (IS_FS50 (dev)) {
1142
1143
1144
1145 submit_command (dev, &dev->hp_txq,
1146 QE_CMD_REG_WR | QE_CMD_IMM_INQ,
1147 0x80 + vcc->channo, -1, 0 );
1148 }
1149 }
1150
1151 fs_dprintk (FS_DEBUG_ALLOC, "Free vcc: %p\n", vcc);
1152 kfree (vcc);
1153
1154 func_exit ();
1155}
1156
1157
1158static int fs_send (struct atm_vcc *atm_vcc, struct sk_buff *skb)
1159{
1160 struct fs_dev *dev = FS_DEV (atm_vcc->dev);
1161 struct fs_vcc *vcc = FS_VCC (atm_vcc);
1162 struct FS_BPENTRY *td;
1163
1164 func_enter ();
1165
1166 fs_dprintk (FS_DEBUG_TXMEM, "I");
1167 fs_dprintk (FS_DEBUG_SEND, "Send: atm_vcc %p skb %p vcc %p dev %p\n",
1168 atm_vcc, skb, vcc, dev);
1169
1170 fs_dprintk (FS_DEBUG_ALLOC, "Alloc t-skb: %p (atm_send)\n", skb);
1171
1172 ATM_SKB(skb)->vcc = atm_vcc;
1173
1174 vcc->last_skb = skb;
1175
1176 td = kmalloc (sizeof (struct FS_BPENTRY), GFP_ATOMIC);
1177 fs_dprintk (FS_DEBUG_ALLOC, "Alloc transd: %p(%zd)\n", td, sizeof (struct FS_BPENTRY));
1178 if (!td) {
1179
1180 return -ENOMEM;
1181 }
1182
1183 fs_dprintk (FS_DEBUG_SEND, "first word in buffer: %x\n",
1184 *(int *) skb->data);
1185
1186 td->flags = TD_EPI | TD_DATA | skb->len;
1187 td->next = 0;
1188 td->bsa = virt_to_bus (skb->data);
1189 td->skb = skb;
1190 td->dev = dev;
1191 dev->ntxpckts++;
1192
1193#ifdef DEBUG_EXTRA
1194 da[qd] = td;
1195 dq[qd].flags = td->flags;
1196 dq[qd].next = td->next;
1197 dq[qd].bsa = td->bsa;
1198 dq[qd].skb = td->skb;
1199 dq[qd].dev = td->dev;
1200 qd++;
1201 if (qd >= 60) qd = 0;
1202#endif
1203
1204 submit_queue (dev, &dev->hp_txq,
1205 QE_TRANSMIT_DE | vcc->channo,
1206 virt_to_bus (td), 0,
1207 virt_to_bus (td));
1208
1209 fs_dprintk (FS_DEBUG_QUEUE, "in send: txq %d txrq %d\n",
1210 read_fs (dev, Q_EA (dev->hp_txq.offset)) -
1211 read_fs (dev, Q_SA (dev->hp_txq.offset)),
1212 read_fs (dev, Q_EA (dev->tx_relq.offset)) -
1213 read_fs (dev, Q_SA (dev->tx_relq.offset)));
1214
1215 func_exit ();
1216 return 0;
1217}
1218
1219
1220
1221
1222#if 0
1223static int fs_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
1224{
1225 func_enter ();
1226 func_exit ();
1227 return -ENOIOCTLCMD;
1228}
1229
1230
1231static int fs_getsockopt(struct atm_vcc *vcc,int level,int optname,
1232 void __user *optval,int optlen)
1233{
1234 func_enter ();
1235 func_exit ();
1236 return 0;
1237}
1238
1239
1240static int fs_setsockopt(struct atm_vcc *vcc,int level,int optname,
1241 void __user *optval,unsigned int optlen)
1242{
1243 func_enter ();
1244 func_exit ();
1245 return 0;
1246}
1247
1248
1249static void fs_phy_put(struct atm_dev *dev,unsigned char value,
1250 unsigned long addr)
1251{
1252 func_enter ();
1253 func_exit ();
1254}
1255
1256
1257static unsigned char fs_phy_get(struct atm_dev *dev,unsigned long addr)
1258{
1259 func_enter ();
1260 func_exit ();
1261 return 0;
1262}
1263
1264
1265static int fs_change_qos(struct atm_vcc *vcc,struct atm_qos *qos,int flags)
1266{
1267 func_enter ();
1268 func_exit ();
1269 return 0;
1270};
1271
1272#endif
1273
1274
1275static const struct atmdev_ops ops = {
1276 .open = fs_open,
1277 .close = fs_close,
1278 .send = fs_send,
1279 .owner = THIS_MODULE,
1280
1281
1282
1283
1284
1285
1286};
1287
1288
1289static void undocumented_pci_fix(struct pci_dev *pdev)
1290{
1291 u32 tint;
1292
1293
1294
1295
1296
1297
1298
1299
1300 pci_read_config_dword (pdev, 0x28, &tint);
1301 if (tint != 0x80) {
1302 tint = 0x80;
1303 pci_write_config_dword (pdev, 0x28, tint);
1304 }
1305}
1306
1307
1308
1309
1310
1311
1312
1313static void write_phy(struct fs_dev *dev, int regnum, int val)
1314{
1315 submit_command (dev, &dev->hp_txq, QE_CMD_PRP_WR | QE_CMD_IMM_INQ,
1316 regnum, val, 0);
1317}
1318
1319static int init_phy(struct fs_dev *dev, struct reginit_item *reginit)
1320{
1321 int i;
1322
1323 func_enter ();
1324 while (reginit->reg != PHY_EOF) {
1325 if (reginit->reg == PHY_CLEARALL) {
1326
1327 for (i=0;i<reginit->val;i++) {
1328 write_phy (dev, i, 0);
1329 }
1330 } else {
1331 write_phy (dev, reginit->reg, reginit->val);
1332 }
1333 reginit++;
1334 }
1335 func_exit ();
1336 return 0;
1337}
1338
1339static void reset_chip (struct fs_dev *dev)
1340{
1341 int i;
1342
1343 write_fs (dev, SARMODE0, SARMODE0_SRTS0);
1344
1345
1346 udelay (128);
1347
1348
1349
1350
1351 for (i=0;i < FS_NR_FREE_POOLS;i++) {
1352 write_fs (dev, FP_CNF (RXB_FP(i)), 0);
1353 write_fs (dev, FP_SA (RXB_FP(i)), 0);
1354 write_fs (dev, FP_EA (RXB_FP(i)), 0);
1355 write_fs (dev, FP_CNT (RXB_FP(i)), 0);
1356 write_fs (dev, FP_CTU (RXB_FP(i)), 0);
1357 }
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368 if (IS_FS50 (dev)) {
1369 for (i=0;i<FS50_NR_CHANNELS;i++) {
1370 write_fs (dev, 0x200 + i * 4, -1);
1371 }
1372 }
1373}
1374
1375static void *aligned_kmalloc(int size, gfp_t flags, int alignment)
1376{
1377 void *t;
1378
1379 if (alignment <= 0x10) {
1380 t = kmalloc (size, flags);
1381 if ((unsigned long)t & (alignment-1)) {
1382 printk ("Kmalloc doesn't align things correctly! %p\n", t);
1383 kfree (t);
1384 return aligned_kmalloc (size, flags, alignment * 4);
1385 }
1386 return t;
1387 }
1388 printk (KERN_ERR "Request for > 0x10 alignment not yet implemented (hard!)\n");
1389 return NULL;
1390}
1391
1392static int init_q(struct fs_dev *dev, struct queue *txq, int queue,
1393 int nentries, int is_rq)
1394{
1395 int sz = nentries * sizeof (struct FS_QENTRY);
1396 struct FS_QENTRY *p;
1397
1398 func_enter ();
1399
1400 fs_dprintk (FS_DEBUG_INIT, "Initializing queue at %x: %d entries:\n",
1401 queue, nentries);
1402
1403 p = aligned_kmalloc (sz, GFP_KERNEL, 0x10);
1404 fs_dprintk (FS_DEBUG_ALLOC, "Alloc queue: %p(%d)\n", p, sz);
1405
1406 if (!p) return 0;
1407
1408 write_fs (dev, Q_SA(queue), virt_to_bus(p));
1409 write_fs (dev, Q_EA(queue), virt_to_bus(p+nentries-1));
1410 write_fs (dev, Q_WP(queue), virt_to_bus(p));
1411 write_fs (dev, Q_RP(queue), virt_to_bus(p));
1412 if (is_rq) {
1413
1414
1415
1416 write_fs (dev, Q_CNF(queue), 0 );
1417 }
1418
1419 txq->sa = p;
1420 txq->ea = p;
1421 txq->offset = queue;
1422
1423 func_exit ();
1424 return 1;
1425}
1426
1427
1428static int init_fp(struct fs_dev *dev, struct freepool *fp, int queue,
1429 int bufsize, int nr_buffers)
1430{
1431 func_enter ();
1432
1433 fs_dprintk (FS_DEBUG_INIT, "Initializing free pool at %x:\n", queue);
1434
1435 write_fs (dev, FP_CNF(queue), (bufsize * RBFP_RBS) | RBFP_RBSVAL | RBFP_CME);
1436 write_fs (dev, FP_SA(queue), 0);
1437 write_fs (dev, FP_EA(queue), 0);
1438 write_fs (dev, FP_CTU(queue), 0);
1439 write_fs (dev, FP_CNT(queue), 0);
1440
1441 fp->offset = queue;
1442 fp->bufsize = bufsize;
1443 fp->nr_buffers = nr_buffers;
1444
1445 func_exit ();
1446 return 1;
1447}
1448
1449
1450static inline int nr_buffers_in_freepool (struct fs_dev *dev, struct freepool *fp)
1451{
1452#if 0
1453
1454 return read_fs (dev, FP_CNT (fp->offset));
1455#else
1456 return fp->n;
1457#endif
1458}
1459
1460
1461
1462
1463
1464
1465static void top_off_fp (struct fs_dev *dev, struct freepool *fp,
1466 gfp_t gfp_flags)
1467{
1468 struct FS_BPENTRY *qe, *ne;
1469 struct sk_buff *skb;
1470 int n = 0;
1471 u32 qe_tmp;
1472
1473 fs_dprintk (FS_DEBUG_QUEUE, "Topping off queue at %x (%d-%d/%d)\n",
1474 fp->offset, read_fs (dev, FP_CNT (fp->offset)), fp->n,
1475 fp->nr_buffers);
1476 while (nr_buffers_in_freepool(dev, fp) < fp->nr_buffers) {
1477
1478 skb = alloc_skb (fp->bufsize, gfp_flags);
1479 fs_dprintk (FS_DEBUG_ALLOC, "Alloc rec-skb: %p(%d)\n", skb, fp->bufsize);
1480 if (!skb) break;
1481 ne = kmalloc (sizeof (struct FS_BPENTRY), gfp_flags);
1482 fs_dprintk (FS_DEBUG_ALLOC, "Alloc rec-d: %p(%zd)\n", ne, sizeof (struct FS_BPENTRY));
1483 if (!ne) {
1484 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", skb);
1485 dev_kfree_skb_any (skb);
1486 break;
1487 }
1488
1489 fs_dprintk (FS_DEBUG_QUEUE, "Adding skb %p desc %p -> %p(%p) ",
1490 skb, ne, skb->data, skb->head);
1491 n++;
1492 ne->flags = FP_FLAGS_EPI | fp->bufsize;
1493 ne->next = virt_to_bus (NULL);
1494 ne->bsa = virt_to_bus (skb->data);
1495 ne->aal_bufsize = fp->bufsize;
1496 ne->skb = skb;
1497 ne->fp = fp;
1498
1499
1500
1501
1502
1503
1504
1505 qe_tmp = read_fs (dev, FP_EA(fp->offset));
1506 fs_dprintk (FS_DEBUG_QUEUE, "link at %x\n", qe_tmp);
1507 if (qe_tmp) {
1508 qe = bus_to_virt ((long) qe_tmp);
1509 qe->next = virt_to_bus(ne);
1510 qe->flags &= ~FP_FLAGS_EPI;
1511 } else
1512 write_fs (dev, FP_SA(fp->offset), virt_to_bus(ne));
1513
1514 write_fs (dev, FP_EA(fp->offset), virt_to_bus (ne));
1515 fp->n++;
1516 write_fs (dev, FP_CTU(fp->offset), 1);
1517 }
1518
1519 fs_dprintk (FS_DEBUG_QUEUE, "Added %d entries. \n", n);
1520}
1521
1522static void free_queue(struct fs_dev *dev, struct queue *txq)
1523{
1524 func_enter ();
1525
1526 write_fs (dev, Q_SA(txq->offset), 0);
1527 write_fs (dev, Q_EA(txq->offset), 0);
1528 write_fs (dev, Q_RP(txq->offset), 0);
1529 write_fs (dev, Q_WP(txq->offset), 0);
1530
1531
1532 fs_dprintk (FS_DEBUG_ALLOC, "Free queue: %p\n", txq->sa);
1533 kfree (txq->sa);
1534
1535 func_exit ();
1536}
1537
1538static void free_freepool(struct fs_dev *dev, struct freepool *fp)
1539{
1540 func_enter ();
1541
1542 write_fs (dev, FP_CNF(fp->offset), 0);
1543 write_fs (dev, FP_SA (fp->offset), 0);
1544 write_fs (dev, FP_EA (fp->offset), 0);
1545 write_fs (dev, FP_CNT(fp->offset), 0);
1546 write_fs (dev, FP_CTU(fp->offset), 0);
1547
1548 func_exit ();
1549}
1550
1551
1552
1553static irqreturn_t fs_irq (int irq, void *dev_id)
1554{
1555 int i;
1556 u32 status;
1557 struct fs_dev *dev = dev_id;
1558
1559 status = read_fs (dev, ISR);
1560 if (!status)
1561 return IRQ_NONE;
1562
1563 func_enter ();
1564
1565#ifdef IRQ_RATE_LIMIT
1566
1567
1568 {
1569 static int lastjif;
1570 static int nintr=0;
1571
1572 if (lastjif == jiffies) {
1573 if (++nintr > IRQ_RATE_LIMIT) {
1574 free_irq (dev->irq, dev_id);
1575 printk (KERN_ERR "fs: Too many interrupts. Turning off interrupt %d.\n",
1576 dev->irq);
1577 }
1578 } else {
1579 lastjif = jiffies;
1580 nintr = 0;
1581 }
1582 }
1583#endif
1584 fs_dprintk (FS_DEBUG_QUEUE, "in intr: txq %d txrq %d\n",
1585 read_fs (dev, Q_EA (dev->hp_txq.offset)) -
1586 read_fs (dev, Q_SA (dev->hp_txq.offset)),
1587 read_fs (dev, Q_EA (dev->tx_relq.offset)) -
1588 read_fs (dev, Q_SA (dev->tx_relq.offset)));
1589
1590
1591 if (fs_debug & FS_DEBUG_IRQ) {
1592
1593
1594 fs_dprintk (FS_DEBUG_IRQ, "IRQ status:");
1595 for (i=0;i<27;i++)
1596 if (status & (1 << i))
1597 fs_dprintk (FS_DEBUG_IRQ, " %s", irq_bitname[i]);
1598 fs_dprintk (FS_DEBUG_IRQ, "\n");
1599 }
1600
1601 if (status & ISR_RBRQ0_W) {
1602 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (0)!!!!\n");
1603 process_incoming (dev, &dev->rx_rq[0]);
1604
1605 top_off_fp (dev, &dev->rx_fp[0], GFP_ATOMIC);
1606 top_off_fp (dev, &dev->rx_fp[1], GFP_ATOMIC);
1607 }
1608
1609 if (status & ISR_RBRQ1_W) {
1610 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (1)!!!!\n");
1611 process_incoming (dev, &dev->rx_rq[1]);
1612 top_off_fp (dev, &dev->rx_fp[2], GFP_ATOMIC);
1613 top_off_fp (dev, &dev->rx_fp[3], GFP_ATOMIC);
1614 }
1615
1616 if (status & ISR_RBRQ2_W) {
1617 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (2)!!!!\n");
1618 process_incoming (dev, &dev->rx_rq[2]);
1619 top_off_fp (dev, &dev->rx_fp[4], GFP_ATOMIC);
1620 top_off_fp (dev, &dev->rx_fp[5], GFP_ATOMIC);
1621 }
1622
1623 if (status & ISR_RBRQ3_W) {
1624 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (3)!!!!\n");
1625 process_incoming (dev, &dev->rx_rq[3]);
1626 top_off_fp (dev, &dev->rx_fp[6], GFP_ATOMIC);
1627 top_off_fp (dev, &dev->rx_fp[7], GFP_ATOMIC);
1628 }
1629
1630 if (status & ISR_CSQ_W) {
1631 fs_dprintk (FS_DEBUG_IRQ, "Command executed ok!\n");
1632 process_return_queue (dev, &dev->st_q);
1633 }
1634
1635 if (status & ISR_TBRQ_W) {
1636 fs_dprintk (FS_DEBUG_IRQ, "Data transmitted!\n");
1637 process_txdone_queue (dev, &dev->tx_relq);
1638 }
1639
1640 func_exit ();
1641 return IRQ_HANDLED;
1642}
1643
1644
1645#ifdef FS_POLL_FREQ
1646static void fs_poll (struct timer_list *t)
1647{
1648 struct fs_dev *dev = from_timer(dev, t, timer);
1649
1650 fs_irq (0, dev);
1651 dev->timer.expires = jiffies + FS_POLL_FREQ;
1652 add_timer (&dev->timer);
1653}
1654#endif
1655
1656static int fs_init(struct fs_dev *dev)
1657{
1658 struct pci_dev *pci_dev;
1659 int isr, to;
1660 int i;
1661
1662 func_enter ();
1663 pci_dev = dev->pci_dev;
1664
1665 printk (KERN_INFO "found a FireStream %d card, base %16llx, irq%d.\n",
1666 IS_FS50(dev)?50:155,
1667 (unsigned long long)pci_resource_start(pci_dev, 0),
1668 dev->pci_dev->irq);
1669
1670 if (fs_debug & FS_DEBUG_INIT)
1671 my_hd ((unsigned char *) dev, sizeof (*dev));
1672
1673 undocumented_pci_fix (pci_dev);
1674
1675 dev->hw_base = pci_resource_start(pci_dev, 0);
1676
1677 dev->base = ioremap(dev->hw_base, 0x1000);
1678
1679 reset_chip (dev);
1680
1681 write_fs (dev, SARMODE0, 0
1682 | (0 * SARMODE0_SHADEN)
1683 | (1 * SARMODE0_INTMODE_READCLEAR)
1684 | (1 * SARMODE0_CWRE)
1685 | (IS_FS50(dev) ? SARMODE0_PRPWT_FS50_5:
1686 SARMODE0_PRPWT_FS155_3)
1687 | (1 * SARMODE0_CALSUP_1)
1688 | (IS_FS50(dev) ? (0
1689 | SARMODE0_RXVCS_32
1690 | SARMODE0_ABRVCS_32
1691 | SARMODE0_TXVCS_32):
1692 (0
1693 | SARMODE0_RXVCS_1k
1694 | SARMODE0_ABRVCS_1k
1695 | SARMODE0_TXVCS_1k)));
1696
1697
1698
1699 to = 100;
1700 while (--to) {
1701 isr = read_fs (dev, ISR);
1702
1703
1704 if (isr & ISR_INIT_ERR) {
1705 printk (KERN_ERR "Error initializing the FS... \n");
1706 goto unmap;
1707 }
1708 if (isr & ISR_INIT) {
1709 fs_dprintk (FS_DEBUG_INIT, "Ha! Initialized OK!\n");
1710 break;
1711 }
1712
1713
1714 msleep(10);
1715 }
1716
1717 if (!to) {
1718 printk (KERN_ERR "timeout initializing the FS... \n");
1719 goto unmap;
1720 }
1721
1722
1723 dev->channel_mask = 0x1f;
1724 dev->channo = 0;
1725
1726
1727 write_fs (dev, SARMODE1, 0
1728 | (fs_keystream * SARMODE1_DEFHEC)
1729 | ((loopback == 1) * SARMODE1_TSTLP)
1730 | (1 * SARMODE1_DCRM)
1731 | (1 * SARMODE1_DCOAM)
1732 | (0 * SARMODE1_OAMCRC)
1733 | (0 * SARMODE1_DUMPE)
1734 | (0 * SARMODE1_GPLEN)
1735 | (0 * SARMODE1_GNAM)
1736 | (0 * SARMODE1_GVAS)
1737 | (0 * SARMODE1_GPAS)
1738 | (1 * SARMODE1_GPRI)
1739 | (0 * SARMODE1_PMS)
1740 | (0 * SARMODE1_GFCR)
1741 | (1 * SARMODE1_HECM2)
1742 | (1 * SARMODE1_HECM1)
1743 | (1 * SARMODE1_HECM0)
1744 | (1 << 12)
1745 | (0 * 0xff) );
1746
1747
1748
1749
1750
1751 write_fs (dev, TMCONF, 0x0000000f);
1752 write_fs (dev, CALPRESCALE, 0x01010101 * num);
1753 write_fs (dev, 0x80, 0x000F00E4);
1754
1755
1756 write_fs (dev, CELLOSCONF, 0
1757 | ( 0 * CELLOSCONF_CEN)
1758 | ( CELLOSCONF_SC1)
1759 | (0x80 * CELLOSCONF_COBS)
1760 | (num * CELLOSCONF_COPK)
1761 | (num * CELLOSCONF_COST));
1762
1763
1764
1765 write_fs (dev, CELLOSCONF_COST, 0x0B809191);
1766
1767 if (IS_FS50 (dev)) {
1768 write_fs (dev, RAS0, RAS0_DCD_XHLT);
1769 dev->atm_dev->ci_range.vpi_bits = 12;
1770 dev->atm_dev->ci_range.vci_bits = 16;
1771 dev->nchannels = FS50_NR_CHANNELS;
1772 } else {
1773 write_fs (dev, RAS0, RAS0_DCD_XHLT
1774 | (((1 << FS155_VPI_BITS) - 1) * RAS0_VPSEL)
1775 | (((1 << FS155_VCI_BITS) - 1) * RAS0_VCSEL));
1776
1777
1778 dev->atm_dev->ci_range.vpi_bits = FS155_VPI_BITS;
1779 dev->atm_dev->ci_range.vci_bits = FS155_VCI_BITS;
1780
1781
1782 write_fs (dev, RAC, 0);
1783
1784
1785
1786
1787
1788 write_fs (dev, RAM, (1 << (28 - FS155_VPI_BITS - FS155_VCI_BITS)) - 1);
1789 dev->nchannels = FS155_NR_CHANNELS;
1790 }
1791 dev->atm_vccs = kcalloc (dev->nchannels, sizeof (struct atm_vcc *),
1792 GFP_KERNEL);
1793 fs_dprintk (FS_DEBUG_ALLOC, "Alloc atmvccs: %p(%zd)\n",
1794 dev->atm_vccs, dev->nchannels * sizeof (struct atm_vcc *));
1795
1796 if (!dev->atm_vccs) {
1797 printk (KERN_WARNING "Couldn't allocate memory for VCC buffers. Woops!\n");
1798
1799 goto unmap;
1800 }
1801
1802 dev->tx_inuse = kzalloc (dev->nchannels / 8 , GFP_KERNEL);
1803 fs_dprintk (FS_DEBUG_ALLOC, "Alloc tx_inuse: %p(%d)\n",
1804 dev->atm_vccs, dev->nchannels / 8);
1805
1806 if (!dev->tx_inuse) {
1807 printk (KERN_WARNING "Couldn't allocate memory for tx_inuse bits!\n");
1808
1809 goto unmap;
1810 }
1811
1812
1813
1814
1815 write_fs (dev, DMAMR, DMAMR_TX_MODE_FULL);
1816
1817 init_q (dev, &dev->hp_txq, TX_PQ(TXQ_HP), TXQ_NENTRIES, 0);
1818 init_q (dev, &dev->lp_txq, TX_PQ(TXQ_LP), TXQ_NENTRIES, 0);
1819 init_q (dev, &dev->tx_relq, TXB_RQ, TXQ_NENTRIES, 1);
1820 init_q (dev, &dev->st_q, ST_Q, TXQ_NENTRIES, 1);
1821
1822 for (i=0;i < FS_NR_FREE_POOLS;i++) {
1823 init_fp (dev, &dev->rx_fp[i], RXB_FP(i),
1824 rx_buf_sizes[i], rx_pool_sizes[i]);
1825 top_off_fp (dev, &dev->rx_fp[i], GFP_KERNEL);
1826 }
1827
1828
1829 for (i=0;i < FS_NR_RX_QUEUES;i++)
1830 init_q (dev, &dev->rx_rq[i], RXB_RQ(i), RXRQ_NENTRIES, 1);
1831
1832 dev->irq = pci_dev->irq;
1833 if (request_irq (dev->irq, fs_irq, IRQF_SHARED, "firestream", dev)) {
1834 printk (KERN_WARNING "couldn't get irq %d for firestream.\n", pci_dev->irq);
1835
1836 goto unmap;
1837 }
1838 fs_dprintk (FS_DEBUG_INIT, "Grabbed irq %d for dev at %p.\n", dev->irq, dev);
1839
1840
1841
1842 write_fs (dev, IMR, 0
1843 | ISR_RBRQ0_W
1844 | ISR_RBRQ1_W
1845 | ISR_RBRQ2_W
1846 | ISR_RBRQ3_W
1847 | ISR_TBRQ_W
1848 | ISR_CSQ_W);
1849
1850 write_fs (dev, SARMODE0, 0
1851 | (0 * SARMODE0_SHADEN)
1852 | (1 * SARMODE0_GINT)
1853 | (1 * SARMODE0_INTMODE_READCLEAR)
1854 | (0 * SARMODE0_CWRE)
1855 | (IS_FS50(dev)?SARMODE0_PRPWT_FS50_5:
1856 SARMODE0_PRPWT_FS155_3)
1857 | (1 * SARMODE0_CALSUP_1)
1858 | (IS_FS50 (dev)?(0
1859 | SARMODE0_RXVCS_32
1860 | SARMODE0_ABRVCS_32
1861 | SARMODE0_TXVCS_32):
1862 (0
1863 | SARMODE0_RXVCS_1k
1864 | SARMODE0_ABRVCS_1k
1865 | SARMODE0_TXVCS_1k))
1866 | (1 * SARMODE0_RUN));
1867
1868 init_phy (dev, PHY_NTC_INIT);
1869
1870 if (loopback == 2) {
1871 write_phy (dev, 0x39, 0x000e);
1872 }
1873
1874#ifdef FS_POLL_FREQ
1875 timer_setup(&dev->timer, fs_poll, 0);
1876 dev->timer.expires = jiffies + FS_POLL_FREQ;
1877 add_timer (&dev->timer);
1878#endif
1879
1880 dev->atm_dev->dev_data = dev;
1881
1882 func_exit ();
1883 return 0;
1884unmap:
1885 iounmap(dev->base);
1886 return 1;
1887}
1888
1889static int firestream_init_one(struct pci_dev *pci_dev,
1890 const struct pci_device_id *ent)
1891{
1892 struct atm_dev *atm_dev;
1893 struct fs_dev *fs_dev;
1894
1895 if (pci_enable_device(pci_dev))
1896 goto err_out;
1897
1898 fs_dev = kzalloc (sizeof (struct fs_dev), GFP_KERNEL);
1899 fs_dprintk (FS_DEBUG_ALLOC, "Alloc fs-dev: %p(%zd)\n",
1900 fs_dev, sizeof (struct fs_dev));
1901 if (!fs_dev)
1902 goto err_out;
1903 atm_dev = atm_dev_register("fs", &pci_dev->dev, &ops, -1, NULL);
1904 if (!atm_dev)
1905 goto err_out_free_fs_dev;
1906
1907 fs_dev->pci_dev = pci_dev;
1908 fs_dev->atm_dev = atm_dev;
1909 fs_dev->flags = ent->driver_data;
1910
1911 if (fs_init(fs_dev))
1912 goto err_out_free_atm_dev;
1913
1914 fs_dev->next = fs_boards;
1915 fs_boards = fs_dev;
1916 return 0;
1917
1918 err_out_free_atm_dev:
1919 atm_dev_deregister(atm_dev);
1920 err_out_free_fs_dev:
1921 kfree(fs_dev);
1922 err_out:
1923 return -ENODEV;
1924}
1925
1926static void firestream_remove_one(struct pci_dev *pdev)
1927{
1928 int i;
1929 struct fs_dev *dev, *nxtdev;
1930 struct fs_vcc *vcc;
1931 struct FS_BPENTRY *fp, *nxt;
1932
1933 func_enter ();
1934
1935#if 0
1936 printk ("hptxq:\n");
1937 for (i=0;i<60;i++) {
1938 printk ("%d: %08x %08x %08x %08x \n",
1939 i, pq[qp].cmd, pq[qp].p0, pq[qp].p1, pq[qp].p2);
1940 qp++;
1941 if (qp >= 60) qp = 0;
1942 }
1943
1944 printk ("descriptors:\n");
1945 for (i=0;i<60;i++) {
1946 printk ("%d: %p: %08x %08x %p %p\n",
1947 i, da[qd], dq[qd].flags, dq[qd].bsa, dq[qd].skb, dq[qd].dev);
1948 qd++;
1949 if (qd >= 60) qd = 0;
1950 }
1951#endif
1952
1953 for (dev = fs_boards;dev != NULL;dev=nxtdev) {
1954 fs_dprintk (FS_DEBUG_CLEANUP, "Releasing resources for dev at %p.\n", dev);
1955
1956
1957
1958 for (i=0;i < dev->nchannels;i++) {
1959 if (dev->atm_vccs[i]) {
1960 vcc = FS_VCC (dev->atm_vccs[i]);
1961 submit_command (dev, &dev->hp_txq,
1962 QE_CMD_TX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
1963 submit_command (dev, &dev->hp_txq,
1964 QE_CMD_RX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
1965
1966 }
1967 }
1968
1969
1970
1971 for (i=0;i < FS_NR_FREE_POOLS;i++) {
1972 for (fp=bus_to_virt (read_fs (dev, FP_SA(dev->rx_fp[i].offset)));
1973 !(fp->flags & FP_FLAGS_EPI);fp = nxt) {
1974 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", fp->skb);
1975 dev_kfree_skb_any (fp->skb);
1976 nxt = bus_to_virt (fp->next);
1977 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", fp);
1978 kfree (fp);
1979 }
1980 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", fp->skb);
1981 dev_kfree_skb_any (fp->skb);
1982 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", fp);
1983 kfree (fp);
1984 }
1985
1986
1987
1988 reset_chip (dev);
1989
1990 fs_dprintk (FS_DEBUG_CLEANUP, "Freeing irq%d.\n", dev->irq);
1991 free_irq (dev->irq, dev);
1992 del_timer_sync (&dev->timer);
1993
1994 atm_dev_deregister(dev->atm_dev);
1995 free_queue (dev, &dev->hp_txq);
1996 free_queue (dev, &dev->lp_txq);
1997 free_queue (dev, &dev->tx_relq);
1998 free_queue (dev, &dev->st_q);
1999
2000 fs_dprintk (FS_DEBUG_ALLOC, "Free atmvccs: %p\n", dev->atm_vccs);
2001 kfree (dev->atm_vccs);
2002
2003 for (i=0;i< FS_NR_FREE_POOLS;i++)
2004 free_freepool (dev, &dev->rx_fp[i]);
2005
2006 for (i=0;i < FS_NR_RX_QUEUES;i++)
2007 free_queue (dev, &dev->rx_rq[i]);
2008
2009 iounmap(dev->base);
2010 fs_dprintk (FS_DEBUG_ALLOC, "Free fs-dev: %p\n", dev);
2011 nxtdev = dev->next;
2012 kfree (dev);
2013 }
2014
2015 func_exit ();
2016}
2017
2018static const struct pci_device_id firestream_pci_tbl[] = {
2019 { PCI_VDEVICE(FUJITSU_ME, PCI_DEVICE_ID_FUJITSU_FS50), FS_IS50},
2020 { PCI_VDEVICE(FUJITSU_ME, PCI_DEVICE_ID_FUJITSU_FS155), FS_IS155},
2021 { 0, }
2022};
2023
2024MODULE_DEVICE_TABLE(pci, firestream_pci_tbl);
2025
2026static struct pci_driver firestream_driver = {
2027 .name = "firestream",
2028 .id_table = firestream_pci_tbl,
2029 .probe = firestream_init_one,
2030 .remove = firestream_remove_one,
2031};
2032
2033static int __init firestream_init_module (void)
2034{
2035 int error;
2036
2037 func_enter ();
2038 error = pci_register_driver(&firestream_driver);
2039 func_exit ();
2040 return error;
2041}
2042
2043static void __exit firestream_cleanup_module(void)
2044{
2045 pci_unregister_driver(&firestream_driver);
2046}
2047
2048module_init(firestream_init_module);
2049module_exit(firestream_cleanup_module);
2050
2051MODULE_LICENSE("GPL");
2052
2053
2054
2055