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31#include <linux/module.h>
32#include <linux/sched.h>
33#include <linux/kernel.h>
34#include <linux/mm.h>
35#include <linux/pci.h>
36#include <linux/poison.h>
37#include <linux/errno.h>
38#include <linux/atm.h>
39#include <linux/atmdev.h>
40#include <linux/sonet.h>
41#include <linux/skbuff.h>
42#include <linux/netdevice.h>
43#include <linux/delay.h>
44#include <linux/ioport.h>
45#include <linux/uio.h>
46#include <linux/init.h>
47#include <linux/capability.h>
48#include <linux/bitops.h>
49#include <asm/byteorder.h>
50#include <asm/system.h>
51#include <asm/string.h>
52#include <asm/io.h>
53#include <asm/atomic.h>
54#include <asm/uaccess.h>
55#include <linux/wait.h>
56
57#include "firestream.h"
58
59static int loopback = 0;
60static int num=0x5a;
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84
85#define NP FS_NR_FREE_POOLS
86static int rx_buf_sizes[NP] = {128, 256, 512, 1024, 2048, 4096, 16384, 65520};
87
88
89#if 0
90static int rx_pool_sizes[NP] = {1024, 1024, 512, 256, 128, 64, 32, 32};
91#else
92
93static int rx_pool_sizes[NP] = {128, 128, 128, 64, 64, 64, 32, 32};
94#endif
95
96
97
98
99
100
101#undef NP
102
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151
152static char *res_strings[] = {
153 "RX OK: streaming not EOP",
154 "RX OK: streaming EOP",
155 "RX OK: Single buffer packet",
156 "RX OK: packet mode",
157 "RX OK: F4 OAM (end to end)",
158 "RX OK: F4 OAM (Segment)",
159 "RX OK: F5 OAM (end to end)",
160 "RX OK: F5 OAM (Segment)",
161 "RX OK: RM cell",
162 "RX OK: TRANSP cell",
163 "RX OK: TRANSPC cell",
164 "Unmatched cell",
165 "reserved 12",
166 "reserved 13",
167 "reserved 14",
168 "Unrecognized cell",
169 "reserved 16",
170 "reassemby abort: AAL5 abort",
171 "packet purged",
172 "packet ageing timeout",
173 "channel ageing timeout",
174 "calculated length error",
175 "programmed length limit error",
176 "aal5 crc32 error",
177 "oam transp or transpc crc10 error",
178 "reserved 25",
179 "reserved 26",
180 "reserved 27",
181 "reserved 28",
182 "reserved 29",
183 "reserved 30",
184 "reassembly abort: no buffers",
185 "receive buffer overflow",
186 "change in GFC",
187 "receive buffer full",
188 "low priority discard - no receive descriptor",
189 "low priority discard - missing end of packet",
190 "reserved 41",
191 "reserved 42",
192 "reserved 43",
193 "reserved 44",
194 "reserved 45",
195 "reserved 46",
196 "reserved 47",
197 "reserved 48",
198 "reserved 49",
199 "reserved 50",
200 "reserved 51",
201 "reserved 52",
202 "reserved 53",
203 "reserved 54",
204 "reserved 55",
205 "reserved 56",
206 "reserved 57",
207 "reserved 58",
208 "reserved 59",
209 "reserved 60",
210 "reserved 61",
211 "reserved 62",
212 "reserved 63",
213};
214
215static char *irq_bitname[] = {
216 "LPCO",
217 "DPCO",
218 "RBRQ0_W",
219 "RBRQ1_W",
220 "RBRQ2_W",
221 "RBRQ3_W",
222 "RBRQ0_NF",
223 "RBRQ1_NF",
224 "RBRQ2_NF",
225 "RBRQ3_NF",
226 "BFP_SC",
227 "INIT",
228 "INIT_ERR",
229 "USCEO",
230 "UPEC0",
231 "VPFCO",
232 "CRCCO",
233 "HECO",
234 "TBRQ_W",
235 "TBRQ_NF",
236 "CTPQ_E",
237 "GFC_C0",
238 "PCI_FTL",
239 "CSQ_W",
240 "CSQ_NF",
241 "EXT_INT",
242 "RXDMA_S"
243};
244
245
246#define PHY_EOF -1
247#define PHY_CLEARALL -2
248
249struct reginit_item {
250 int reg, val;
251};
252
253
254static struct reginit_item PHY_NTC_INIT[] __devinitdata = {
255 { PHY_CLEARALL, 0x40 },
256 { 0x12, 0x0001 },
257 { 0x13, 0x7605 },
258 { 0x1A, 0x0001 },
259 { 0x1B, 0x0005 },
260 { 0x38, 0x0003 },
261 { 0x39, 0x0006 },
262 { 0x01, 0x5262 },
263 { 0x15, 0x0213 },
264 { 0x00, 0x0003 },
265 { PHY_EOF, 0},
266};
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274
275#undef IRQ_RATE_LIMIT
276
277
278
279#undef FS_POLL_FREQ
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288
289#define DEBUG
290
291#ifdef DEBUG
292#define fs_dprintk(f, str...) if (fs_debug & f) printk (str)
293#else
294#define fs_dprintk(f, str...)
295#endif
296
297
298static int fs_keystream = 0;
299
300#ifdef DEBUG
301
302
303static int fs_debug = 0;
304#else
305#define fs_debug 0
306#endif
307
308#ifdef MODULE
309#ifdef DEBUG
310module_param(fs_debug, int, 0644);
311#endif
312module_param(loopback, int, 0);
313module_param(num, int, 0);
314module_param(fs_keystream, int, 0);
315
316#endif
317
318
319#define FS_DEBUG_FLOW 0x00000001
320#define FS_DEBUG_OPEN 0x00000002
321#define FS_DEBUG_QUEUE 0x00000004
322#define FS_DEBUG_IRQ 0x00000008
323#define FS_DEBUG_INIT 0x00000010
324#define FS_DEBUG_SEND 0x00000020
325#define FS_DEBUG_PHY 0x00000040
326#define FS_DEBUG_CLEANUP 0x00000080
327#define FS_DEBUG_QOS 0x00000100
328#define FS_DEBUG_TXQ 0x00000200
329#define FS_DEBUG_ALLOC 0x00000400
330#define FS_DEBUG_TXMEM 0x00000800
331#define FS_DEBUG_QSIZE 0x00001000
332
333
334#define func_enter() fs_dprintk(FS_DEBUG_FLOW, "fs: enter %s\n", __func__)
335#define func_exit() fs_dprintk(FS_DEBUG_FLOW, "fs: exit %s\n", __func__)
336
337
338static struct fs_dev *fs_boards = NULL;
339
340#ifdef DEBUG
341
342static void my_hd (void *addr, int len)
343{
344 int j, ch;
345 unsigned char *ptr = addr;
346
347 while (len > 0) {
348 printk ("%p ", ptr);
349 for (j=0;j < ((len < 16)?len:16);j++) {
350 printk ("%02x %s", ptr[j], (j==7)?" ":"");
351 }
352 for ( ;j < 16;j++) {
353 printk (" %s", (j==7)?" ":"");
354 }
355 for (j=0;j < ((len < 16)?len:16);j++) {
356 ch = ptr[j];
357 printk ("%c", (ch < 0x20)?'.':((ch > 0x7f)?'.':ch));
358 }
359 printk ("\n");
360 ptr += 16;
361 len -= 16;
362 }
363}
364#else
365static void my_hd (void *addr, int len){}
366#endif
367
368
369
370
371
372
373static inline void fs_kfree_skb (struct sk_buff * skb)
374{
375 if (ATM_SKB(skb)->vcc->pop)
376 ATM_SKB(skb)->vcc->pop (ATM_SKB(skb)->vcc, skb);
377 else
378 dev_kfree_skb_any (skb);
379}
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441#define ROUND_UP 1
442#define ROUND_DOWN 2
443#define ROUND_NEAREST 3
444
445
446static unsigned int make_rate (unsigned int rate, int r,
447 u16 * bits, unsigned int * actual)
448{
449 unsigned char exp = -1;
450 unsigned int man = -1;
451
452 fs_dprintk (FS_DEBUG_QOS, "make_rate %u", rate);
453
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470 if (rate > 0xffc00000U) {
471
472
473 if (r == ROUND_UP) {
474 return -EINVAL;
475 } else {
476 exp = 31;
477 man = 511;
478 }
479
480 } else if (rate) {
481
482
483 exp = 31;
484 man = rate;
485
486
487 while (!(man & (1<<31))) {
488 exp = exp - 1;
489 man = man<<1;
490 }
491
492
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494
495
496 man = man<<1;
497 man &= 0xffffffffU;
498
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506
507 switch (r) {
508 case ROUND_DOWN: {
509
510 man = man>>(32-9);
511 break;
512 }
513 case ROUND_UP: {
514
515 if (man & (~0U>>9)) {
516 man = (man>>(32-9)) + 1;
517 if (man == (1<<9)) {
518
519 man = 0;
520 exp += 1;
521 }
522 } else {
523 man = (man>>(32-9));
524 }
525 break;
526 }
527 case ROUND_NEAREST: {
528
529 if (man & (1<<(32-9-1))) {
530 man = (man>>(32-9)) + 1;
531 if (man == (1<<9)) {
532
533 man = 0;
534 exp += 1;
535 }
536 } else {
537 man = (man>>(32-9));
538 }
539 break;
540 }
541 }
542
543 } else {
544
545
546 if (r == ROUND_DOWN) {
547 return -EINVAL;
548 } else {
549 exp = 0;
550 man = 0;
551 }
552 }
553
554 fs_dprintk (FS_DEBUG_QOS, "rate: man=%u, exp=%hu", man, exp);
555
556 if (bits)
557 *bits = (exp<<9) | man;
558
559 if (actual)
560 *actual = (exp >= 9)
561 ? (1 << exp) + (man << (exp-9))
562 : (1 << exp) + ((man + (1<<(9-exp-1))) >> (9-exp));
563
564 return 0;
565}
566
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573
574static inline void write_fs (struct fs_dev *dev, int offset, u32 val)
575{
576 writel (val, dev->base + offset);
577}
578
579
580static inline u32 read_fs (struct fs_dev *dev, int offset)
581{
582 return readl (dev->base + offset);
583}
584
585
586
587static inline struct FS_QENTRY *get_qentry (struct fs_dev *dev, struct queue *q)
588{
589 return bus_to_virt (read_fs (dev, Q_WP(q->offset)) & Q_ADDR_MASK);
590}
591
592
593static void submit_qentry (struct fs_dev *dev, struct queue *q, struct FS_QENTRY *qe)
594{
595 u32 wp;
596 struct FS_QENTRY *cqe;
597
598
599
600
601 while ((wp = read_fs (dev, Q_WP (q->offset))) & Q_FULL) {
602 fs_dprintk (FS_DEBUG_TXQ, "Found queue at %x full. Waiting.\n",
603 q->offset);
604 schedule ();
605 }
606
607 wp &= ~0xf;
608 cqe = bus_to_virt (wp);
609 if (qe != cqe) {
610 fs_dprintk (FS_DEBUG_TXQ, "q mismatch! %p %p\n", qe, cqe);
611 }
612
613 write_fs (dev, Q_WP(q->offset), Q_INCWRAP);
614
615 {
616 static int c;
617 if (!(c++ % 100))
618 {
619 int rp, wp;
620 rp = read_fs (dev, Q_RP(q->offset));
621 wp = read_fs (dev, Q_WP(q->offset));
622 fs_dprintk (FS_DEBUG_TXQ, "q at %d: %x-%x: %x entries.\n",
623 q->offset, rp, wp, wp-rp);
624 }
625 }
626}
627
628#ifdef DEBUG_EXTRA
629static struct FS_QENTRY pq[60];
630static int qp;
631
632static struct FS_BPENTRY dq[60];
633static int qd;
634static void *da[60];
635#endif
636
637static void submit_queue (struct fs_dev *dev, struct queue *q,
638 u32 cmd, u32 p1, u32 p2, u32 p3)
639{
640 struct FS_QENTRY *qe;
641
642 qe = get_qentry (dev, q);
643 qe->cmd = cmd;
644 qe->p0 = p1;
645 qe->p1 = p2;
646 qe->p2 = p3;
647 submit_qentry (dev, q, qe);
648
649#ifdef DEBUG_EXTRA
650 pq[qp].cmd = cmd;
651 pq[qp].p0 = p1;
652 pq[qp].p1 = p2;
653 pq[qp].p2 = p3;
654 qp++;
655 if (qp >= 60) qp = 0;
656#endif
657}
658
659
660#if 1
661#define submit_command submit_queue
662#else
663
664static void submit_command (struct fs_dev *dev, struct queue *q,
665 u32 cmd, u32 p1, u32 p2, u32 p3)
666{
667 write_fs (dev, CMDR0, cmd);
668 write_fs (dev, CMDR1, p1);
669 write_fs (dev, CMDR2, p2);
670 write_fs (dev, CMDR3, p3);
671}
672#endif
673
674
675
676static void process_return_queue (struct fs_dev *dev, struct queue *q)
677{
678 long rq;
679 struct FS_QENTRY *qe;
680 void *tc;
681
682 while (!((rq = read_fs (dev, Q_RP(q->offset))) & Q_EMPTY)) {
683 fs_dprintk (FS_DEBUG_QUEUE, "reaping return queue entry at %lx\n", rq);
684 qe = bus_to_virt (rq);
685
686 fs_dprintk (FS_DEBUG_QUEUE, "queue entry: %08x %08x %08x %08x. (%d)\n",
687 qe->cmd, qe->p0, qe->p1, qe->p2, STATUS_CODE (qe));
688
689 switch (STATUS_CODE (qe)) {
690 case 5:
691 tc = bus_to_virt (qe->p0);
692 fs_dprintk (FS_DEBUG_ALLOC, "Free tc: %p\n", tc);
693 kfree (tc);
694 break;
695 }
696
697 write_fs (dev, Q_RP(q->offset), Q_INCWRAP);
698 }
699}
700
701
702static void process_txdone_queue (struct fs_dev *dev, struct queue *q)
703{
704 long rq;
705 long tmp;
706 struct FS_QENTRY *qe;
707 struct sk_buff *skb;
708 struct FS_BPENTRY *td;
709
710 while (!((rq = read_fs (dev, Q_RP(q->offset))) & Q_EMPTY)) {
711 fs_dprintk (FS_DEBUG_QUEUE, "reaping txdone entry at %lx\n", rq);
712 qe = bus_to_virt (rq);
713
714 fs_dprintk (FS_DEBUG_QUEUE, "queue entry: %08x %08x %08x %08x: %d\n",
715 qe->cmd, qe->p0, qe->p1, qe->p2, STATUS_CODE (qe));
716
717 if (STATUS_CODE (qe) != 2)
718 fs_dprintk (FS_DEBUG_TXMEM, "queue entry: %08x %08x %08x %08x: %d\n",
719 qe->cmd, qe->p0, qe->p1, qe->p2, STATUS_CODE (qe));
720
721
722 switch (STATUS_CODE (qe)) {
723 case 0x01:
724
725 case 0x02:
726
727 tmp = qe->p0;
728 if (tmp & 0x0f)
729 printk (KERN_WARNING "td not aligned: %ld\n", tmp);
730 tmp &= ~0x0f;
731 td = bus_to_virt (tmp);
732
733 fs_dprintk (FS_DEBUG_QUEUE, "Pool entry: %08x %08x %08x %08x %p.\n",
734 td->flags, td->next, td->bsa, td->aal_bufsize, td->skb );
735
736 skb = td->skb;
737 if (skb == FS_VCC (ATM_SKB(skb)->vcc)->last_skb) {
738 wake_up_interruptible (& FS_VCC (ATM_SKB(skb)->vcc)->close_wait);
739 FS_VCC (ATM_SKB(skb)->vcc)->last_skb = NULL;
740 }
741 td->dev->ntxpckts--;
742
743 {
744 static int c=0;
745
746 if (!(c++ % 100)) {
747 fs_dprintk (FS_DEBUG_QSIZE, "[%d]", td->dev->ntxpckts);
748 }
749 }
750
751 atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
752
753 fs_dprintk (FS_DEBUG_TXMEM, "i");
754 fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb);
755 fs_kfree_skb (skb);
756
757 fs_dprintk (FS_DEBUG_ALLOC, "Free trans-d: %p\n", td);
758 memset (td, ATM_POISON_FREE, sizeof(struct FS_BPENTRY));
759 kfree (td);
760 break;
761 default:
762
763
764 ;
765 }
766
767 write_fs (dev, Q_RP(q->offset), Q_INCWRAP);
768 }
769}
770
771
772static void process_incoming (struct fs_dev *dev, struct queue *q)
773{
774 long rq;
775 struct FS_QENTRY *qe;
776 struct FS_BPENTRY *pe;
777 struct sk_buff *skb;
778 unsigned int channo;
779 struct atm_vcc *atm_vcc;
780
781 while (!((rq = read_fs (dev, Q_RP(q->offset))) & Q_EMPTY)) {
782 fs_dprintk (FS_DEBUG_QUEUE, "reaping incoming queue entry at %lx\n", rq);
783 qe = bus_to_virt (rq);
784
785 fs_dprintk (FS_DEBUG_QUEUE, "queue entry: %08x %08x %08x %08x. ",
786 qe->cmd, qe->p0, qe->p1, qe->p2);
787
788 fs_dprintk (FS_DEBUG_QUEUE, "-> %x: %s\n",
789 STATUS_CODE (qe),
790 res_strings[STATUS_CODE(qe)]);
791
792 pe = bus_to_virt (qe->p0);
793 fs_dprintk (FS_DEBUG_QUEUE, "Pool entry: %08x %08x %08x %08x %p %p.\n",
794 pe->flags, pe->next, pe->bsa, pe->aal_bufsize,
795 pe->skb, pe->fp);
796
797 channo = qe->cmd & 0xffff;
798
799 if (channo < dev->nchannels)
800 atm_vcc = dev->atm_vccs[channo];
801 else
802 atm_vcc = NULL;
803
804
805 switch (STATUS_CODE (qe)) {
806 case 0x1:
807
808 case 0x2:
809 if (atm_vcc) {
810 skb = pe->skb;
811 pe->fp->n--;
812#if 0
813 fs_dprintk (FS_DEBUG_QUEUE, "Got skb: %p\n", skb);
814 if (FS_DEBUG_QUEUE & fs_debug) my_hd (bus_to_virt (pe->bsa), 0x20);
815#endif
816 skb_put (skb, qe->p1 & 0xffff);
817 ATM_SKB(skb)->vcc = atm_vcc;
818 atomic_inc(&atm_vcc->stats->rx);
819 __net_timestamp(skb);
820 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb);
821 atm_vcc->push (atm_vcc, skb);
822 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", pe);
823 kfree (pe);
824 } else {
825 printk (KERN_ERR "Got a receive on a non-open channel %d.\n", channo);
826 }
827 break;
828 case 0x17:
829
830 if (qe->p1 & 0xffff) {
831 pe = bus_to_virt (qe->p0);
832 pe->fp->n--;
833 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", pe->skb);
834 dev_kfree_skb_any (pe->skb);
835 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", pe);
836 kfree (pe);
837 }
838 if (atm_vcc)
839 atomic_inc(&atm_vcc->stats->rx_drop);
840 break;
841 case 0x1f:
842
843 if (atm_vcc)
844 atomic_inc(&atm_vcc->stats->rx_drop);
845 break;
846 default:
847 printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n",
848 STATUS_CODE(qe), res_strings[STATUS_CODE (qe)]);
849 }
850 write_fs (dev, Q_RP(q->offset), Q_INCWRAP);
851 }
852}
853
854
855
856#define DO_DIRECTION(tp) ((tp)->traffic_class != ATM_NONE)
857
858static int fs_open(struct atm_vcc *atm_vcc)
859{
860 struct fs_dev *dev;
861 struct fs_vcc *vcc;
862 struct fs_transmit_config *tc;
863 struct atm_trafprm * txtp;
864 struct atm_trafprm * rxtp;
865
866
867 int error;
868 int bfp;
869 int to;
870 unsigned short tmc0;
871 short vpi = atm_vcc->vpi;
872 int vci = atm_vcc->vci;
873
874 func_enter ();
875
876 dev = FS_DEV(atm_vcc->dev);
877 fs_dprintk (FS_DEBUG_OPEN, "fs: open on dev: %p, vcc at %p\n",
878 dev, atm_vcc);
879
880 if (vci != ATM_VPI_UNSPEC && vpi != ATM_VCI_UNSPEC)
881 set_bit(ATM_VF_ADDR, &atm_vcc->flags);
882
883 if ((atm_vcc->qos.aal != ATM_AAL5) &&
884 (atm_vcc->qos.aal != ATM_AAL2))
885 return -EINVAL;
886
887 fs_dprintk (FS_DEBUG_OPEN, "fs: (itf %d): open %d.%d\n",
888 atm_vcc->dev->number, atm_vcc->vpi, atm_vcc->vci);
889
890
891
892 vcc = kmalloc(sizeof(struct fs_vcc), GFP_KERNEL);
893 fs_dprintk (FS_DEBUG_ALLOC, "Alloc VCC: %p(%Zd)\n", vcc, sizeof(struct fs_vcc));
894 if (!vcc) {
895 clear_bit(ATM_VF_ADDR, &atm_vcc->flags);
896 return -ENOMEM;
897 }
898
899 atm_vcc->dev_data = vcc;
900 vcc->last_skb = NULL;
901
902 init_waitqueue_head (&vcc->close_wait);
903
904 txtp = &atm_vcc->qos.txtp;
905 rxtp = &atm_vcc->qos.rxtp;
906
907 if (!test_bit(ATM_VF_PARTIAL, &atm_vcc->flags)) {
908 if (IS_FS50(dev)) {
909
910 for (to=33;to;to--, dev->channo++) {
911
912 if (dev->channo >= 32)
913 dev->channo = 0;
914
915 if (DO_DIRECTION(rxtp) && dev->atm_vccs[dev->channo])
916 continue;
917
918 if (DO_DIRECTION(txtp) && test_bit (dev->channo, dev->tx_inuse))
919 continue;
920
921 break;
922 }
923 if (!to) {
924 printk ("No more free channels for FS50..\n");
925 return -EBUSY;
926 }
927 vcc->channo = dev->channo;
928 dev->channo &= dev->channel_mask;
929
930 } else {
931 vcc->channo = (vpi << FS155_VCI_BITS) | (vci);
932 if (((DO_DIRECTION(rxtp) && dev->atm_vccs[vcc->channo])) ||
933 ( DO_DIRECTION(txtp) && test_bit (vcc->channo, dev->tx_inuse))) {
934 printk ("Channel is in use for FS155.\n");
935 return -EBUSY;
936 }
937 }
938 fs_dprintk (FS_DEBUG_OPEN, "OK. Allocated channel %x(%d).\n",
939 vcc->channo, vcc->channo);
940 }
941
942 if (DO_DIRECTION (txtp)) {
943 tc = kmalloc (sizeof (struct fs_transmit_config), GFP_KERNEL);
944 fs_dprintk (FS_DEBUG_ALLOC, "Alloc tc: %p(%Zd)\n",
945 tc, sizeof (struct fs_transmit_config));
946 if (!tc) {
947 fs_dprintk (FS_DEBUG_OPEN, "fs: can't alloc transmit_config.\n");
948 return -ENOMEM;
949 }
950
951
952
953
954
955
956
957 switch (atm_vcc->qos.aal) {
958 case ATM_AAL2:
959 case ATM_AAL0:
960 tc->flags = 0
961 | TC_FLAGS_TRANSPARENT_PAYLOAD
962 | TC_FLAGS_PACKET
963 | (1 << 28)
964 | TC_FLAGS_TYPE_UBR
965 | TC_FLAGS_CAL0;
966 break;
967 case ATM_AAL5:
968 tc->flags = 0
969 | TC_FLAGS_AAL5
970 | TC_FLAGS_PACKET
971 | TC_FLAGS_TYPE_CBR
972 | TC_FLAGS_CAL0;
973 break;
974 default:
975 printk ("Unknown aal: %d\n", atm_vcc->qos.aal);
976 tc->flags = 0;
977 }
978
979
980 tc->atm_hdr = (vpi << 20) | (vci << 4);
981 tmc0 = 0;
982 {
983 int pcr = atm_pcr_goal (txtp);
984
985 fs_dprintk (FS_DEBUG_OPEN, "pcr = %d.\n", pcr);
986
987
988
989 if (IS_FS50(dev)) {
990 if (pcr > 51840000/53/8) pcr = 51840000/53/8;
991 } else {
992 if (pcr > 155520000/53/8) pcr = 155520000/53/8;
993 }
994 if (!pcr) {
995
996 tmc0 = IS_FS50(dev)?0x61BE:0x64c9;
997 } else {
998 int r;
999 if (pcr < 0) {
1000 r = ROUND_DOWN;
1001 pcr = -pcr;
1002 } else {
1003 r = ROUND_UP;
1004 }
1005 error = make_rate (pcr, r, &tmc0, NULL);
1006 if (error) {
1007 kfree(tc);
1008 return error;
1009 }
1010 }
1011 fs_dprintk (FS_DEBUG_OPEN, "pcr = %d.\n", pcr);
1012 }
1013
1014 tc->TMC[0] = tmc0 | 0x4000;
1015 tc->TMC[1] = 0;
1016 tc->TMC[2] = 0;
1017 tc->TMC[3] = 0;
1018
1019 tc->spec = 0;
1020 tc->rtag[0] = 0;
1021
1022 tc->rtag[1] = 0;
1023 tc->rtag[2] = 0;
1024
1025 if (fs_debug & FS_DEBUG_OPEN) {
1026 fs_dprintk (FS_DEBUG_OPEN, "TX config record:\n");
1027 my_hd (tc, sizeof (*tc));
1028 }
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041 submit_command (dev, &dev->hp_txq,
1042 QE_CMD_CONFIG_TX | QE_CMD_IMM_INQ | vcc->channo,
1043 virt_to_bus (tc), 0, 0);
1044
1045 submit_command (dev, &dev->hp_txq,
1046 QE_CMD_TX_EN | QE_CMD_IMM_INQ | vcc->channo,
1047 0, 0, 0);
1048 set_bit (vcc->channo, dev->tx_inuse);
1049 }
1050
1051 if (DO_DIRECTION (rxtp)) {
1052 dev->atm_vccs[vcc->channo] = atm_vcc;
1053
1054 for (bfp = 0;bfp < FS_NR_FREE_POOLS; bfp++)
1055 if (atm_vcc->qos.rxtp.max_sdu <= dev->rx_fp[bfp].bufsize) break;
1056 if (bfp >= FS_NR_FREE_POOLS) {
1057 fs_dprintk (FS_DEBUG_OPEN, "No free pool fits sdu: %d.\n",
1058 atm_vcc->qos.rxtp.max_sdu);
1059
1060
1061
1062 dev->atm_vccs[vcc->channo] = NULL;
1063 kfree (vcc);
1064 return -EINVAL;
1065 }
1066
1067 switch (atm_vcc->qos.aal) {
1068 case ATM_AAL0:
1069 case ATM_AAL2:
1070 submit_command (dev, &dev->hp_txq,
1071 QE_CMD_CONFIG_RX | QE_CMD_IMM_INQ | vcc->channo,
1072 RC_FLAGS_TRANSP |
1073 RC_FLAGS_BFPS_BFP * bfp |
1074 RC_FLAGS_RXBM_PSB, 0, 0);
1075 break;
1076 case ATM_AAL5:
1077 submit_command (dev, &dev->hp_txq,
1078 QE_CMD_CONFIG_RX | QE_CMD_IMM_INQ | vcc->channo,
1079 RC_FLAGS_AAL5 |
1080 RC_FLAGS_BFPS_BFP * bfp |
1081 RC_FLAGS_RXBM_PSB, 0, 0);
1082 break;
1083 };
1084 if (IS_FS50 (dev)) {
1085 submit_command (dev, &dev->hp_txq,
1086 QE_CMD_REG_WR | QE_CMD_IMM_INQ,
1087 0x80 + vcc->channo,
1088 (vpi << 16) | vci, 0 );
1089 }
1090 submit_command (dev, &dev->hp_txq,
1091 QE_CMD_RX_EN | QE_CMD_IMM_INQ | vcc->channo,
1092 0, 0, 0);
1093 }
1094
1095
1096 set_bit(ATM_VF_READY, &atm_vcc->flags);
1097
1098 func_exit ();
1099 return 0;
1100}
1101
1102
1103static void fs_close(struct atm_vcc *atm_vcc)
1104{
1105 struct fs_dev *dev = FS_DEV (atm_vcc->dev);
1106 struct fs_vcc *vcc = FS_VCC (atm_vcc);
1107 struct atm_trafprm * txtp;
1108 struct atm_trafprm * rxtp;
1109
1110 func_enter ();
1111
1112 clear_bit(ATM_VF_READY, &atm_vcc->flags);
1113
1114 fs_dprintk (FS_DEBUG_QSIZE, "--==**[%d]**==--", dev->ntxpckts);
1115 if (vcc->last_skb) {
1116 fs_dprintk (FS_DEBUG_QUEUE, "Waiting for skb %p to be sent.\n",
1117 vcc->last_skb);
1118
1119
1120
1121
1122
1123
1124
1125 interruptible_sleep_on (& vcc->close_wait);
1126 }
1127
1128 txtp = &atm_vcc->qos.txtp;
1129 rxtp = &atm_vcc->qos.rxtp;
1130
1131
1132
1133
1134
1135 if (DO_DIRECTION (txtp)) {
1136 submit_command (dev, &dev->hp_txq,
1137 QE_CMD_TX_PURGE_INH | vcc->channo, 0,0,0);
1138 clear_bit (vcc->channo, dev->tx_inuse);
1139 }
1140
1141 if (DO_DIRECTION (rxtp)) {
1142 submit_command (dev, &dev->hp_txq,
1143 QE_CMD_RX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
1144 dev->atm_vccs [vcc->channo] = NULL;
1145
1146
1147 if (IS_FS50 (dev)) {
1148
1149
1150
1151 submit_command (dev, &dev->hp_txq,
1152 QE_CMD_REG_WR | QE_CMD_IMM_INQ,
1153 0x80 + vcc->channo, -1, 0 );
1154 }
1155 }
1156
1157 fs_dprintk (FS_DEBUG_ALLOC, "Free vcc: %p\n", vcc);
1158 kfree (vcc);
1159
1160 func_exit ();
1161}
1162
1163
1164static int fs_send (struct atm_vcc *atm_vcc, struct sk_buff *skb)
1165{
1166 struct fs_dev *dev = FS_DEV (atm_vcc->dev);
1167 struct fs_vcc *vcc = FS_VCC (atm_vcc);
1168 struct FS_BPENTRY *td;
1169
1170 func_enter ();
1171
1172 fs_dprintk (FS_DEBUG_TXMEM, "I");
1173 fs_dprintk (FS_DEBUG_SEND, "Send: atm_vcc %p skb %p vcc %p dev %p\n",
1174 atm_vcc, skb, vcc, dev);
1175
1176 fs_dprintk (FS_DEBUG_ALLOC, "Alloc t-skb: %p (atm_send)\n", skb);
1177
1178 ATM_SKB(skb)->vcc = atm_vcc;
1179
1180 vcc->last_skb = skb;
1181
1182 td = kmalloc (sizeof (struct FS_BPENTRY), GFP_ATOMIC);
1183 fs_dprintk (FS_DEBUG_ALLOC, "Alloc transd: %p(%Zd)\n", td, sizeof (struct FS_BPENTRY));
1184 if (!td) {
1185
1186 return -ENOMEM;
1187 }
1188
1189 fs_dprintk (FS_DEBUG_SEND, "first word in buffer: %x\n",
1190 *(int *) skb->data);
1191
1192 td->flags = TD_EPI | TD_DATA | skb->len;
1193 td->next = 0;
1194 td->bsa = virt_to_bus (skb->data);
1195 td->skb = skb;
1196 td->dev = dev;
1197 dev->ntxpckts++;
1198
1199#ifdef DEBUG_EXTRA
1200 da[qd] = td;
1201 dq[qd].flags = td->flags;
1202 dq[qd].next = td->next;
1203 dq[qd].bsa = td->bsa;
1204 dq[qd].skb = td->skb;
1205 dq[qd].dev = td->dev;
1206 qd++;
1207 if (qd >= 60) qd = 0;
1208#endif
1209
1210 submit_queue (dev, &dev->hp_txq,
1211 QE_TRANSMIT_DE | vcc->channo,
1212 virt_to_bus (td), 0,
1213 virt_to_bus (td));
1214
1215 fs_dprintk (FS_DEBUG_QUEUE, "in send: txq %d txrq %d\n",
1216 read_fs (dev, Q_EA (dev->hp_txq.offset)) -
1217 read_fs (dev, Q_SA (dev->hp_txq.offset)),
1218 read_fs (dev, Q_EA (dev->tx_relq.offset)) -
1219 read_fs (dev, Q_SA (dev->tx_relq.offset)));
1220
1221 func_exit ();
1222 return 0;
1223}
1224
1225
1226
1227
1228#if 0
1229static int fs_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
1230{
1231 func_enter ();
1232 func_exit ();
1233 return -ENOIOCTLCMD;
1234}
1235
1236
1237static int fs_getsockopt(struct atm_vcc *vcc,int level,int optname,
1238 void __user *optval,int optlen)
1239{
1240 func_enter ();
1241 func_exit ();
1242 return 0;
1243}
1244
1245
1246static int fs_setsockopt(struct atm_vcc *vcc,int level,int optname,
1247 void __user *optval,unsigned int optlen)
1248{
1249 func_enter ();
1250 func_exit ();
1251 return 0;
1252}
1253
1254
1255static void fs_phy_put(struct atm_dev *dev,unsigned char value,
1256 unsigned long addr)
1257{
1258 func_enter ();
1259 func_exit ();
1260}
1261
1262
1263static unsigned char fs_phy_get(struct atm_dev *dev,unsigned long addr)
1264{
1265 func_enter ();
1266 func_exit ();
1267 return 0;
1268}
1269
1270
1271static int fs_change_qos(struct atm_vcc *vcc,struct atm_qos *qos,int flags)
1272{
1273 func_enter ();
1274 func_exit ();
1275 return 0;
1276};
1277
1278#endif
1279
1280
1281static const struct atmdev_ops ops = {
1282 .open = fs_open,
1283 .close = fs_close,
1284 .send = fs_send,
1285 .owner = THIS_MODULE,
1286
1287
1288
1289
1290
1291
1292
1293
1294};
1295
1296
1297static void __devinit undocumented_pci_fix (struct pci_dev *pdev)
1298{
1299 u32 tint;
1300
1301
1302
1303
1304
1305
1306
1307
1308 pci_read_config_dword (pdev, 0x28, &tint);
1309 if (tint != 0x80) {
1310 tint = 0x80;
1311 pci_write_config_dword (pdev, 0x28, tint);
1312 }
1313}
1314
1315
1316
1317
1318
1319
1320
1321static void __devinit write_phy (struct fs_dev *dev, int regnum, int val)
1322{
1323 submit_command (dev, &dev->hp_txq, QE_CMD_PRP_WR | QE_CMD_IMM_INQ,
1324 regnum, val, 0);
1325}
1326
1327static int __devinit init_phy (struct fs_dev *dev, struct reginit_item *reginit)
1328{
1329 int i;
1330
1331 func_enter ();
1332 while (reginit->reg != PHY_EOF) {
1333 if (reginit->reg == PHY_CLEARALL) {
1334
1335 for (i=0;i<reginit->val;i++) {
1336 write_phy (dev, i, 0);
1337 }
1338 } else {
1339 write_phy (dev, reginit->reg, reginit->val);
1340 }
1341 reginit++;
1342 }
1343 func_exit ();
1344 return 0;
1345}
1346
1347static void reset_chip (struct fs_dev *dev)
1348{
1349 int i;
1350
1351 write_fs (dev, SARMODE0, SARMODE0_SRTS0);
1352
1353
1354 udelay (128);
1355
1356
1357
1358
1359 for (i=0;i < FS_NR_FREE_POOLS;i++) {
1360 write_fs (dev, FP_CNF (RXB_FP(i)), 0);
1361 write_fs (dev, FP_SA (RXB_FP(i)), 0);
1362 write_fs (dev, FP_EA (RXB_FP(i)), 0);
1363 write_fs (dev, FP_CNT (RXB_FP(i)), 0);
1364 write_fs (dev, FP_CTU (RXB_FP(i)), 0);
1365 }
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376 if (IS_FS50 (dev)) {
1377 for (i=0;i<FS50_NR_CHANNELS;i++) {
1378 write_fs (dev, 0x200 + i * 4, -1);
1379 }
1380 }
1381}
1382
1383static void __devinit *aligned_kmalloc (int size, gfp_t flags, int alignment)
1384{
1385 void *t;
1386
1387 if (alignment <= 0x10) {
1388 t = kmalloc (size, flags);
1389 if ((unsigned long)t & (alignment-1)) {
1390 printk ("Kmalloc doesn't align things correctly! %p\n", t);
1391 kfree (t);
1392 return aligned_kmalloc (size, flags, alignment * 4);
1393 }
1394 return t;
1395 }
1396 printk (KERN_ERR "Request for > 0x10 alignment not yet implemented (hard!)\n");
1397 return NULL;
1398}
1399
1400static int __devinit init_q (struct fs_dev *dev,
1401 struct queue *txq, int queue, int nentries, int is_rq)
1402{
1403 int sz = nentries * sizeof (struct FS_QENTRY);
1404 struct FS_QENTRY *p;
1405
1406 func_enter ();
1407
1408 fs_dprintk (FS_DEBUG_INIT, "Inititing queue at %x: %d entries:\n",
1409 queue, nentries);
1410
1411 p = aligned_kmalloc (sz, GFP_KERNEL, 0x10);
1412 fs_dprintk (FS_DEBUG_ALLOC, "Alloc queue: %p(%d)\n", p, sz);
1413
1414 if (!p) return 0;
1415
1416 write_fs (dev, Q_SA(queue), virt_to_bus(p));
1417 write_fs (dev, Q_EA(queue), virt_to_bus(p+nentries-1));
1418 write_fs (dev, Q_WP(queue), virt_to_bus(p));
1419 write_fs (dev, Q_RP(queue), virt_to_bus(p));
1420 if (is_rq) {
1421
1422
1423
1424 write_fs (dev, Q_CNF(queue), 0 );
1425 }
1426
1427 txq->sa = p;
1428 txq->ea = p;
1429 txq->offset = queue;
1430
1431 func_exit ();
1432 return 1;
1433}
1434
1435
1436static int __devinit init_fp (struct fs_dev *dev,
1437 struct freepool *fp, int queue, int bufsize, int nr_buffers)
1438{
1439 func_enter ();
1440
1441 fs_dprintk (FS_DEBUG_INIT, "Inititing free pool at %x:\n", queue);
1442
1443 write_fs (dev, FP_CNF(queue), (bufsize * RBFP_RBS) | RBFP_RBSVAL | RBFP_CME);
1444 write_fs (dev, FP_SA(queue), 0);
1445 write_fs (dev, FP_EA(queue), 0);
1446 write_fs (dev, FP_CTU(queue), 0);
1447 write_fs (dev, FP_CNT(queue), 0);
1448
1449 fp->offset = queue;
1450 fp->bufsize = bufsize;
1451 fp->nr_buffers = nr_buffers;
1452
1453 func_exit ();
1454 return 1;
1455}
1456
1457
1458static inline int nr_buffers_in_freepool (struct fs_dev *dev, struct freepool *fp)
1459{
1460#if 0
1461
1462 return read_fs (dev, FP_CNT (fp->offset));
1463#else
1464 return fp->n;
1465#endif
1466}
1467
1468
1469
1470
1471
1472
1473static void top_off_fp (struct fs_dev *dev, struct freepool *fp,
1474 gfp_t gfp_flags)
1475{
1476 struct FS_BPENTRY *qe, *ne;
1477 struct sk_buff *skb;
1478 int n = 0;
1479 u32 qe_tmp;
1480
1481 fs_dprintk (FS_DEBUG_QUEUE, "Topping off queue at %x (%d-%d/%d)\n",
1482 fp->offset, read_fs (dev, FP_CNT (fp->offset)), fp->n,
1483 fp->nr_buffers);
1484 while (nr_buffers_in_freepool(dev, fp) < fp->nr_buffers) {
1485
1486 skb = alloc_skb (fp->bufsize, gfp_flags);
1487 fs_dprintk (FS_DEBUG_ALLOC, "Alloc rec-skb: %p(%d)\n", skb, fp->bufsize);
1488 if (!skb) break;
1489 ne = kmalloc (sizeof (struct FS_BPENTRY), gfp_flags);
1490 fs_dprintk (FS_DEBUG_ALLOC, "Alloc rec-d: %p(%Zd)\n", ne, sizeof (struct FS_BPENTRY));
1491 if (!ne) {
1492 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", skb);
1493 dev_kfree_skb_any (skb);
1494 break;
1495 }
1496
1497 fs_dprintk (FS_DEBUG_QUEUE, "Adding skb %p desc %p -> %p(%p) ",
1498 skb, ne, skb->data, skb->head);
1499 n++;
1500 ne->flags = FP_FLAGS_EPI | fp->bufsize;
1501 ne->next = virt_to_bus (NULL);
1502 ne->bsa = virt_to_bus (skb->data);
1503 ne->aal_bufsize = fp->bufsize;
1504 ne->skb = skb;
1505 ne->fp = fp;
1506
1507
1508
1509
1510
1511
1512
1513 qe_tmp = read_fs (dev, FP_EA(fp->offset));
1514 fs_dprintk (FS_DEBUG_QUEUE, "link at %x\n", qe_tmp);
1515 if (qe_tmp) {
1516 qe = bus_to_virt ((long) qe_tmp);
1517 qe->next = virt_to_bus(ne);
1518 qe->flags &= ~FP_FLAGS_EPI;
1519 } else
1520 write_fs (dev, FP_SA(fp->offset), virt_to_bus(ne));
1521
1522 write_fs (dev, FP_EA(fp->offset), virt_to_bus (ne));
1523 fp->n++;
1524 write_fs (dev, FP_CTU(fp->offset), 1);
1525 }
1526
1527 fs_dprintk (FS_DEBUG_QUEUE, "Added %d entries. \n", n);
1528}
1529
1530static void __devexit free_queue (struct fs_dev *dev, struct queue *txq)
1531{
1532 func_enter ();
1533
1534 write_fs (dev, Q_SA(txq->offset), 0);
1535 write_fs (dev, Q_EA(txq->offset), 0);
1536 write_fs (dev, Q_RP(txq->offset), 0);
1537 write_fs (dev, Q_WP(txq->offset), 0);
1538
1539
1540 fs_dprintk (FS_DEBUG_ALLOC, "Free queue: %p\n", txq->sa);
1541 kfree (txq->sa);
1542
1543 func_exit ();
1544}
1545
1546static void __devexit free_freepool (struct fs_dev *dev, struct freepool *fp)
1547{
1548 func_enter ();
1549
1550 write_fs (dev, FP_CNF(fp->offset), 0);
1551 write_fs (dev, FP_SA (fp->offset), 0);
1552 write_fs (dev, FP_EA (fp->offset), 0);
1553 write_fs (dev, FP_CNT(fp->offset), 0);
1554 write_fs (dev, FP_CTU(fp->offset), 0);
1555
1556 func_exit ();
1557}
1558
1559
1560
1561static irqreturn_t fs_irq (int irq, void *dev_id)
1562{
1563 int i;
1564 u32 status;
1565 struct fs_dev *dev = dev_id;
1566
1567 status = read_fs (dev, ISR);
1568 if (!status)
1569 return IRQ_NONE;
1570
1571 func_enter ();
1572
1573#ifdef IRQ_RATE_LIMIT
1574
1575
1576 {
1577 static int lastjif;
1578 static int nintr=0;
1579
1580 if (lastjif == jiffies) {
1581 if (++nintr > IRQ_RATE_LIMIT) {
1582 free_irq (dev->irq, dev_id);
1583 printk (KERN_ERR "fs: Too many interrupts. Turning off interrupt %d.\n",
1584 dev->irq);
1585 }
1586 } else {
1587 lastjif = jiffies;
1588 nintr = 0;
1589 }
1590 }
1591#endif
1592 fs_dprintk (FS_DEBUG_QUEUE, "in intr: txq %d txrq %d\n",
1593 read_fs (dev, Q_EA (dev->hp_txq.offset)) -
1594 read_fs (dev, Q_SA (dev->hp_txq.offset)),
1595 read_fs (dev, Q_EA (dev->tx_relq.offset)) -
1596 read_fs (dev, Q_SA (dev->tx_relq.offset)));
1597
1598
1599 if (fs_debug & FS_DEBUG_IRQ) {
1600
1601
1602 fs_dprintk (FS_DEBUG_IRQ, "IRQ status:");
1603 for (i=0;i<27;i++)
1604 if (status & (1 << i))
1605 fs_dprintk (FS_DEBUG_IRQ, " %s", irq_bitname[i]);
1606 fs_dprintk (FS_DEBUG_IRQ, "\n");
1607 }
1608
1609 if (status & ISR_RBRQ0_W) {
1610 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (0)!!!!\n");
1611 process_incoming (dev, &dev->rx_rq[0]);
1612
1613 top_off_fp (dev, &dev->rx_fp[0], GFP_ATOMIC);
1614 top_off_fp (dev, &dev->rx_fp[1], GFP_ATOMIC);
1615 }
1616
1617 if (status & ISR_RBRQ1_W) {
1618 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (1)!!!!\n");
1619 process_incoming (dev, &dev->rx_rq[1]);
1620 top_off_fp (dev, &dev->rx_fp[2], GFP_ATOMIC);
1621 top_off_fp (dev, &dev->rx_fp[3], GFP_ATOMIC);
1622 }
1623
1624 if (status & ISR_RBRQ2_W) {
1625 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (2)!!!!\n");
1626 process_incoming (dev, &dev->rx_rq[2]);
1627 top_off_fp (dev, &dev->rx_fp[4], GFP_ATOMIC);
1628 top_off_fp (dev, &dev->rx_fp[5], GFP_ATOMIC);
1629 }
1630
1631 if (status & ISR_RBRQ3_W) {
1632 fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (3)!!!!\n");
1633 process_incoming (dev, &dev->rx_rq[3]);
1634 top_off_fp (dev, &dev->rx_fp[6], GFP_ATOMIC);
1635 top_off_fp (dev, &dev->rx_fp[7], GFP_ATOMIC);
1636 }
1637
1638 if (status & ISR_CSQ_W) {
1639 fs_dprintk (FS_DEBUG_IRQ, "Command executed ok!\n");
1640 process_return_queue (dev, &dev->st_q);
1641 }
1642
1643 if (status & ISR_TBRQ_W) {
1644 fs_dprintk (FS_DEBUG_IRQ, "Data tramsitted!\n");
1645 process_txdone_queue (dev, &dev->tx_relq);
1646 }
1647
1648 func_exit ();
1649 return IRQ_HANDLED;
1650}
1651
1652
1653#ifdef FS_POLL_FREQ
1654static void fs_poll (unsigned long data)
1655{
1656 struct fs_dev *dev = (struct fs_dev *) data;
1657
1658 fs_irq (0, dev);
1659 dev->timer.expires = jiffies + FS_POLL_FREQ;
1660 add_timer (&dev->timer);
1661}
1662#endif
1663
1664static int __devinit fs_init (struct fs_dev *dev)
1665{
1666 struct pci_dev *pci_dev;
1667 int isr, to;
1668 int i;
1669
1670 func_enter ();
1671 pci_dev = dev->pci_dev;
1672
1673 printk (KERN_INFO "found a FireStream %d card, base %16llx, irq%d.\n",
1674 IS_FS50(dev)?50:155,
1675 (unsigned long long)pci_resource_start(pci_dev, 0),
1676 dev->pci_dev->irq);
1677
1678 if (fs_debug & FS_DEBUG_INIT)
1679 my_hd ((unsigned char *) dev, sizeof (*dev));
1680
1681 undocumented_pci_fix (pci_dev);
1682
1683 dev->hw_base = pci_resource_start(pci_dev, 0);
1684
1685 dev->base = ioremap(dev->hw_base, 0x1000);
1686
1687 reset_chip (dev);
1688
1689 write_fs (dev, SARMODE0, 0
1690 | (0 * SARMODE0_SHADEN)
1691 | (1 * SARMODE0_INTMODE_READCLEAR)
1692 | (1 * SARMODE0_CWRE)
1693 | (IS_FS50(dev) ? SARMODE0_PRPWT_FS50_5:
1694 SARMODE0_PRPWT_FS155_3)
1695 | (1 * SARMODE0_CALSUP_1)
1696 | (IS_FS50(dev) ? (0
1697 | SARMODE0_RXVCS_32
1698 | SARMODE0_ABRVCS_32
1699 | SARMODE0_TXVCS_32):
1700 (0
1701 | SARMODE0_RXVCS_1k
1702 | SARMODE0_ABRVCS_1k
1703 | SARMODE0_TXVCS_1k)));
1704
1705
1706
1707 to = 100;
1708 while (--to) {
1709 isr = read_fs (dev, ISR);
1710
1711
1712 if (isr & ISR_INIT_ERR) {
1713 printk (KERN_ERR "Error initializing the FS... \n");
1714 goto unmap;
1715 }
1716 if (isr & ISR_INIT) {
1717 fs_dprintk (FS_DEBUG_INIT, "Ha! Initialized OK!\n");
1718 break;
1719 }
1720
1721
1722 msleep(10);
1723 }
1724
1725 if (!to) {
1726 printk (KERN_ERR "timeout initializing the FS... \n");
1727 goto unmap;
1728 }
1729
1730
1731 dev->channel_mask = 0x1f;
1732 dev->channo = 0;
1733
1734
1735 write_fs (dev, SARMODE1, 0
1736 | (fs_keystream * SARMODE1_DEFHEC)
1737 | ((loopback == 1) * SARMODE1_TSTLP)
1738 | (1 * SARMODE1_DCRM)
1739 | (1 * SARMODE1_DCOAM)
1740 | (0 * SARMODE1_OAMCRC)
1741 | (0 * SARMODE1_DUMPE)
1742 | (0 * SARMODE1_GPLEN)
1743 | (0 * SARMODE1_GNAM)
1744 | (0 * SARMODE1_GVAS)
1745 | (0 * SARMODE1_GPAS)
1746 | (1 * SARMODE1_GPRI)
1747 | (0 * SARMODE1_PMS)
1748 | (0 * SARMODE1_GFCR)
1749 | (1 * SARMODE1_HECM2)
1750 | (1 * SARMODE1_HECM1)
1751 | (1 * SARMODE1_HECM0)
1752 | (1 << 12)
1753 | (0 * 0xff) );
1754
1755
1756
1757
1758
1759 write_fs (dev, TMCONF, 0x0000000f);
1760 write_fs (dev, CALPRESCALE, 0x01010101 * num);
1761 write_fs (dev, 0x80, 0x000F00E4);
1762
1763
1764 write_fs (dev, CELLOSCONF, 0
1765 | ( 0 * CELLOSCONF_CEN)
1766 | ( CELLOSCONF_SC1)
1767 | (0x80 * CELLOSCONF_COBS)
1768 | (num * CELLOSCONF_COPK)
1769 | (num * CELLOSCONF_COST));
1770
1771
1772
1773 write_fs (dev, CELLOSCONF_COST, 0x0B809191);
1774
1775 if (IS_FS50 (dev)) {
1776 write_fs (dev, RAS0, RAS0_DCD_XHLT);
1777 dev->atm_dev->ci_range.vpi_bits = 12;
1778 dev->atm_dev->ci_range.vci_bits = 16;
1779 dev->nchannels = FS50_NR_CHANNELS;
1780 } else {
1781 write_fs (dev, RAS0, RAS0_DCD_XHLT
1782 | (((1 << FS155_VPI_BITS) - 1) * RAS0_VPSEL)
1783 | (((1 << FS155_VCI_BITS) - 1) * RAS0_VCSEL));
1784
1785
1786 dev->atm_dev->ci_range.vpi_bits = FS155_VPI_BITS;
1787 dev->atm_dev->ci_range.vci_bits = FS155_VCI_BITS;
1788
1789
1790 write_fs (dev, RAC, 0);
1791
1792
1793
1794
1795
1796 write_fs (dev, RAM, (1 << (28 - FS155_VPI_BITS - FS155_VCI_BITS)) - 1);
1797 dev->nchannels = FS155_NR_CHANNELS;
1798 }
1799 dev->atm_vccs = kcalloc (dev->nchannels, sizeof (struct atm_vcc *),
1800 GFP_KERNEL);
1801 fs_dprintk (FS_DEBUG_ALLOC, "Alloc atmvccs: %p(%Zd)\n",
1802 dev->atm_vccs, dev->nchannels * sizeof (struct atm_vcc *));
1803
1804 if (!dev->atm_vccs) {
1805 printk (KERN_WARNING "Couldn't allocate memory for VCC buffers. Woops!\n");
1806
1807 goto unmap;
1808 }
1809
1810 dev->tx_inuse = kzalloc (dev->nchannels / 8 , GFP_KERNEL);
1811 fs_dprintk (FS_DEBUG_ALLOC, "Alloc tx_inuse: %p(%d)\n",
1812 dev->atm_vccs, dev->nchannels / 8);
1813
1814 if (!dev->tx_inuse) {
1815 printk (KERN_WARNING "Couldn't allocate memory for tx_inuse bits!\n");
1816
1817 goto unmap;
1818 }
1819
1820
1821
1822
1823 write_fs (dev, DMAMR, DMAMR_TX_MODE_FULL);
1824
1825 init_q (dev, &dev->hp_txq, TX_PQ(TXQ_HP), TXQ_NENTRIES, 0);
1826 init_q (dev, &dev->lp_txq, TX_PQ(TXQ_LP), TXQ_NENTRIES, 0);
1827 init_q (dev, &dev->tx_relq, TXB_RQ, TXQ_NENTRIES, 1);
1828 init_q (dev, &dev->st_q, ST_Q, TXQ_NENTRIES, 1);
1829
1830 for (i=0;i < FS_NR_FREE_POOLS;i++) {
1831 init_fp (dev, &dev->rx_fp[i], RXB_FP(i),
1832 rx_buf_sizes[i], rx_pool_sizes[i]);
1833 top_off_fp (dev, &dev->rx_fp[i], GFP_KERNEL);
1834 }
1835
1836
1837 for (i=0;i < FS_NR_RX_QUEUES;i++)
1838 init_q (dev, &dev->rx_rq[i], RXB_RQ(i), RXRQ_NENTRIES, 1);
1839
1840 dev->irq = pci_dev->irq;
1841 if (request_irq (dev->irq, fs_irq, IRQF_SHARED, "firestream", dev)) {
1842 printk (KERN_WARNING "couldn't get irq %d for firestream.\n", pci_dev->irq);
1843
1844 goto unmap;
1845 }
1846 fs_dprintk (FS_DEBUG_INIT, "Grabbed irq %d for dev at %p.\n", dev->irq, dev);
1847
1848
1849
1850 write_fs (dev, IMR, 0
1851 | ISR_RBRQ0_W
1852 | ISR_RBRQ1_W
1853 | ISR_RBRQ2_W
1854 | ISR_RBRQ3_W
1855 | ISR_TBRQ_W
1856 | ISR_CSQ_W);
1857
1858 write_fs (dev, SARMODE0, 0
1859 | (0 * SARMODE0_SHADEN)
1860 | (1 * SARMODE0_GINT)
1861 | (1 * SARMODE0_INTMODE_READCLEAR)
1862 | (0 * SARMODE0_CWRE)
1863 | (IS_FS50(dev)?SARMODE0_PRPWT_FS50_5:
1864 SARMODE0_PRPWT_FS155_3)
1865 | (1 * SARMODE0_CALSUP_1)
1866 | (IS_FS50 (dev)?(0
1867 | SARMODE0_RXVCS_32
1868 | SARMODE0_ABRVCS_32
1869 | SARMODE0_TXVCS_32):
1870 (0
1871 | SARMODE0_RXVCS_1k
1872 | SARMODE0_ABRVCS_1k
1873 | SARMODE0_TXVCS_1k))
1874 | (1 * SARMODE0_RUN));
1875
1876 init_phy (dev, PHY_NTC_INIT);
1877
1878 if (loopback == 2) {
1879 write_phy (dev, 0x39, 0x000e);
1880 }
1881
1882#ifdef FS_POLL_FREQ
1883 init_timer (&dev->timer);
1884 dev->timer.data = (unsigned long) dev;
1885 dev->timer.function = fs_poll;
1886 dev->timer.expires = jiffies + FS_POLL_FREQ;
1887 add_timer (&dev->timer);
1888#endif
1889
1890 dev->atm_dev->dev_data = dev;
1891
1892 func_exit ();
1893 return 0;
1894unmap:
1895 iounmap(dev->base);
1896 return 1;
1897}
1898
1899static int __devinit firestream_init_one (struct pci_dev *pci_dev,
1900 const struct pci_device_id *ent)
1901{
1902 struct atm_dev *atm_dev;
1903 struct fs_dev *fs_dev;
1904
1905 if (pci_enable_device(pci_dev))
1906 goto err_out;
1907
1908 fs_dev = kzalloc (sizeof (struct fs_dev), GFP_KERNEL);
1909 fs_dprintk (FS_DEBUG_ALLOC, "Alloc fs-dev: %p(%Zd)\n",
1910 fs_dev, sizeof (struct fs_dev));
1911 if (!fs_dev)
1912 goto err_out;
1913 atm_dev = atm_dev_register("fs", &ops, -1, NULL);
1914 if (!atm_dev)
1915 goto err_out_free_fs_dev;
1916
1917 fs_dev->pci_dev = pci_dev;
1918 fs_dev->atm_dev = atm_dev;
1919 fs_dev->flags = ent->driver_data;
1920
1921 if (fs_init(fs_dev))
1922 goto err_out_free_atm_dev;
1923
1924 fs_dev->next = fs_boards;
1925 fs_boards = fs_dev;
1926 return 0;
1927
1928 err_out_free_atm_dev:
1929 atm_dev_deregister(atm_dev);
1930 err_out_free_fs_dev:
1931 kfree(fs_dev);
1932 err_out:
1933 return -ENODEV;
1934}
1935
1936static void __devexit firestream_remove_one (struct pci_dev *pdev)
1937{
1938 int i;
1939 struct fs_dev *dev, *nxtdev;
1940 struct fs_vcc *vcc;
1941 struct FS_BPENTRY *fp, *nxt;
1942
1943 func_enter ();
1944
1945#if 0
1946 printk ("hptxq:\n");
1947 for (i=0;i<60;i++) {
1948 printk ("%d: %08x %08x %08x %08x \n",
1949 i, pq[qp].cmd, pq[qp].p0, pq[qp].p1, pq[qp].p2);
1950 qp++;
1951 if (qp >= 60) qp = 0;
1952 }
1953
1954 printk ("descriptors:\n");
1955 for (i=0;i<60;i++) {
1956 printk ("%d: %p: %08x %08x %p %p\n",
1957 i, da[qd], dq[qd].flags, dq[qd].bsa, dq[qd].skb, dq[qd].dev);
1958 qd++;
1959 if (qd >= 60) qd = 0;
1960 }
1961#endif
1962
1963 for (dev = fs_boards;dev != NULL;dev=nxtdev) {
1964 fs_dprintk (FS_DEBUG_CLEANUP, "Releasing resources for dev at %p.\n", dev);
1965
1966
1967
1968 for (i=0;i < dev->nchannels;i++) {
1969 if (dev->atm_vccs[i]) {
1970 vcc = FS_VCC (dev->atm_vccs[i]);
1971 submit_command (dev, &dev->hp_txq,
1972 QE_CMD_TX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
1973 submit_command (dev, &dev->hp_txq,
1974 QE_CMD_RX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
1975
1976 }
1977 }
1978
1979
1980
1981 for (i=0;i < FS_NR_FREE_POOLS;i++) {
1982 for (fp=bus_to_virt (read_fs (dev, FP_SA(dev->rx_fp[i].offset)));
1983 !(fp->flags & FP_FLAGS_EPI);fp = nxt) {
1984 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", fp->skb);
1985 dev_kfree_skb_any (fp->skb);
1986 nxt = bus_to_virt (fp->next);
1987 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", fp);
1988 kfree (fp);
1989 }
1990 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", fp->skb);
1991 dev_kfree_skb_any (fp->skb);
1992 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", fp);
1993 kfree (fp);
1994 }
1995
1996
1997
1998 reset_chip (dev);
1999
2000 fs_dprintk (FS_DEBUG_CLEANUP, "Freeing irq%d.\n", dev->irq);
2001 free_irq (dev->irq, dev);
2002 del_timer (&dev->timer);
2003
2004 atm_dev_deregister(dev->atm_dev);
2005 free_queue (dev, &dev->hp_txq);
2006 free_queue (dev, &dev->lp_txq);
2007 free_queue (dev, &dev->tx_relq);
2008 free_queue (dev, &dev->st_q);
2009
2010 fs_dprintk (FS_DEBUG_ALLOC, "Free atmvccs: %p\n", dev->atm_vccs);
2011 kfree (dev->atm_vccs);
2012
2013 for (i=0;i< FS_NR_FREE_POOLS;i++)
2014 free_freepool (dev, &dev->rx_fp[i]);
2015
2016 for (i=0;i < FS_NR_RX_QUEUES;i++)
2017 free_queue (dev, &dev->rx_rq[i]);
2018
2019 iounmap(dev->base);
2020 fs_dprintk (FS_DEBUG_ALLOC, "Free fs-dev: %p\n", dev);
2021 nxtdev = dev->next;
2022 kfree (dev);
2023 }
2024
2025 func_exit ();
2026}
2027
2028static struct pci_device_id firestream_pci_tbl[] = {
2029 { PCI_VENDOR_ID_FUJITSU_ME, PCI_DEVICE_ID_FUJITSU_FS50,
2030 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FS_IS50},
2031 { PCI_VENDOR_ID_FUJITSU_ME, PCI_DEVICE_ID_FUJITSU_FS155,
2032 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FS_IS155},
2033 { 0, }
2034};
2035
2036MODULE_DEVICE_TABLE(pci, firestream_pci_tbl);
2037
2038static struct pci_driver firestream_driver = {
2039 .name = "firestream",
2040 .id_table = firestream_pci_tbl,
2041 .probe = firestream_init_one,
2042 .remove = __devexit_p(firestream_remove_one),
2043};
2044
2045static int __init firestream_init_module (void)
2046{
2047 int error;
2048
2049 func_enter ();
2050 error = pci_register_driver(&firestream_driver);
2051 func_exit ();
2052 return error;
2053}
2054
2055static void __exit firestream_cleanup_module(void)
2056{
2057 pci_unregister_driver(&firestream_driver);
2058}
2059
2060module_init(firestream_init_module);
2061module_exit(firestream_cleanup_module);
2062
2063MODULE_LICENSE("GPL");
2064
2065
2066
2067