Lines Matching +full:broken +full:- +full:prefetch +full:- +full:cmd
1 // SPDX-License-Identifier: GPL-2.0-or-later
4 Copyright (C) 1995-1999 Madge Networks Ltd.
8 /* * dedicated to the memory of Graham Gordon 1971-1998 * */
48 This driver is for the PCI ATMizer-based Ambassador card (except
58 The cards are big-endian.
66 The cards are reset and the self-test results are checked. The
68 pointer to a descriptor containing details of the host-based queues
81 contents of several other "shared run-time registers" (bad) which
96 1. Driver <-> Adapter Communication
104 All queues are host-based circular queues. They are contiguous and
133 Each TX supply item contains a unique, host-supplied handle (the skb
141 RX supply items consist of a unique, host-supplied handle (the skb
149 Each pool should have enough buffers to handle a back-to-back stream
205 All structures that are not accessed using DMA must be 4-byte
208 There is a DMA memory hole at E0000000-E00000FF (groan).
214 include spare trailing bytes up to the next 4-byte boundary; they
217 The PLX likes to prefetch; if reading up to 4 u32 past the end of
219 little faster by passing a flag at init that disables a prefetch
228 . Discard non-conforming SKBs (causes TX failure or RX fill delay).
229 . Discard non-conforming TX fragment descriptors (the TX fails).
233 . Relax checks for non-DMA items (ignore hole).
234 . Give scatter-gather (iovec) requirements using ???. (?)
236 3. VC close is broken (only for new microcode)
247 . Timer code may be broken.
251 . Handle interrupted and/or non-blocking writes - is this a job for
266 . Impose a TX-pending limit (2?) on each VC, help avoid TX q overflow.
275 on the last one (OR only "no-op" or "wait" commands are waited for).
277 . Eliminate need for while-schedule around do_command.
292 static const unsigned long onegigmask = -1 << 30;
297 PRINTD (DBG_FLOW|DBG_REGS, "wr: %08zx <- %08x", addr, data); in wr_plain()
299 dev->membase[addr / sizeof(u32)] = data; in wr_plain()
301 outl (data, dev->iobase + addr); in wr_plain()
307 u32 data = dev->membase[addr / sizeof(u32)]; in rd_plain()
309 u32 data = inl (dev->iobase + addr); in rd_plain()
311 PRINTD (DBG_FLOW|DBG_REGS, "rd: %08zx -> %08x", addr, data); in rd_plain()
317 PRINTD (DBG_FLOW|DBG_REGS, "wr: %08zx <- %08x b[%08x]", addr, data, be); in wr_mem()
319 dev->membase[addr / sizeof(u32)] = be; in wr_mem()
321 outl (be, dev->iobase + addr); in wr_mem()
327 __be32 be = dev->membase[addr / sizeof(u32)]; in rd_mem()
329 __be32 be = inl (dev->iobase + addr); in rd_mem()
332 PRINTD (DBG_FLOW|DBG_REGS, "rd: %08zx -> %08x b[%08x]", addr, data, be); in rd_mem()
361 PRINTDB (DBG_LOAD, "lb @ %p; res: %d, cmd: %d, pay:", in dump_loader_block()
362 lb, be32_to_cpu (lb->result), be32_to_cpu (lb->command)); in dump_loader_block()
364 PRINTDM (DBG_LOAD, " %08x", be32_to_cpu (lb->payload.data[i])); in dump_loader_block()
365 PRINTDE (DBG_LOAD, ", vld: %08x", be32_to_cpu (lb->valid)); in dump_loader_block()
372 static inline void dump_command (command * cmd) { in dump_command() argument
375 PRINTDB (DBG_CMD, "cmd @ %p, req: %08x, pars:", in dump_command()
376 cmd, /*be32_to_cpu*/ (cmd->request)); in dump_command()
378 PRINTDM (DBG_CMD, " %08x", /*be32_to_cpu*/ (cmd->args.par[i])); in dump_command()
381 (void) cmd; in dump_command()
389 unsigned char * data = skb->data; in dump_skb()
391 for (i=0; i<skb->len && i < 256;i++) in dump_skb()
408 const u32 fourmegmask = -1 << 22; in check_area()
409 const u32 twofivesixmask = -1 << 8; in check_area()
412 u32 lastaddress = startaddress+length-1; in check_area()
415 PRINTK (KERN_ERR, "check_area failure: [%x,%x] - mail maintainer!", in check_area()
417 return -1; in check_area()
426 if (ATM_SKB(skb)->vcc->pop) { in amb_kfree_skb()
427 ATM_SKB(skb)->vcc->pop (ATM_SKB(skb)->vcc, skb); in amb_kfree_skb()
436 tx_simple * tx_descr = bus_to_virt (tx->handle); in tx_complete()
437 struct sk_buff * skb = tx_descr->skb; in tx_complete()
442 atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); in tx_complete()
450 dev->stats.tx_ok++; in tx_complete()
457 struct sk_buff * skb = bus_to_virt (rx->handle); in rx_complete()
458 u16 vc = be16_to_cpu (rx->vc); in rx_complete()
459 // unused: u16 lec_id = be16_to_cpu (rx->lec_id); in rx_complete()
460 u16 status = be16_to_cpu (rx->status); in rx_complete()
461 u16 rx_len = be16_to_cpu (rx->length); in rx_complete()
467 struct atm_vcc * atm_vcc = dev->rxer[vc]; in rx_complete()
468 dev->stats.rx.ok++; in rx_complete()
472 if (rx_len <= atm_vcc->qos.rxtp.max_sdu) { in rx_complete()
474 if (atm_charge (atm_vcc, skb->truesize)) { in rx_complete()
477 ATM_SKB(skb)->vcc = atm_vcc; in rx_complete()
483 atomic_inc(&atm_vcc->stats->rx); in rx_complete()
486 atm_vcc->push (atm_vcc, skb); in rx_complete()
491 … PRINTD (DBG_INFO|DBG_RX, "dropped thanks to atm_charge (vc %hu, truesize %u)", vc, skb->truesize); in rx_complete()
496 PRINTK (KERN_INFO, "dropped over-size frame"); in rx_complete()
498 atomic_inc(&atm_vcc->stats->rx_drop); in rx_complete()
507 dev->stats.rx.error++; in rx_complete()
509 dev->stats.rx.badcrc++; in rx_complete()
511 dev->stats.rx.toolong++; in rx_complete()
513 dev->stats.rx.aborted++; in rx_complete()
515 dev->stats.rx.unused++; in rx_complete()
539 // sometimes does 16-bit accesses (yuk yuk yuk)
541 static int command_do (amb_dev * dev, command * cmd) { in command_do() argument
542 amb_cq * cq = &dev->cq; in command_do()
543 volatile amb_cq_ptrs * ptrs = &cq->ptrs; in command_do()
548 if (test_bit (dead, &dev->flags)) in command_do()
551 spin_lock (&cq->lock); in command_do()
554 if (cq->pending < cq->maximum) { in command_do()
556 my_slot = ptrs->in; in command_do()
559 dump_command (cmd); in command_do()
562 *ptrs->in = *cmd; in command_do()
563 cq->pending++; in command_do()
564 ptrs->in = NEXTQ (ptrs->in, ptrs->start, ptrs->limit); in command_do()
567 wr_mem (dev, offsetof(amb_mem, mb.adapter.cmd_address), virt_to_bus (ptrs->in)); in command_do()
569 if (cq->pending > cq->high) in command_do()
570 cq->high = cq->pending; in command_do()
571 spin_unlock (&cq->lock); in command_do()
573 // these comments were in a while-loop before, msleep removes the loop in command_do()
576 msleep(cq->pending); in command_do()
579 while (ptrs->out != my_slot) { in command_do()
580 PRINTD (DBG_CMD, "wait: command slot (now at %p)", ptrs->out); in command_do()
586 while (ptrs->out->request != cpu_to_be32 (SRB_COMPLETE)) { in command_do()
594 spin_lock (&cq->lock); in command_do()
595 cq->pending--; in command_do()
597 *cmd = *ptrs->out; in command_do()
598 ptrs->out = NEXTQ (ptrs->out, ptrs->start, ptrs->limit); in command_do()
599 spin_unlock (&cq->lock); in command_do()
603 cq->filled++; in command_do()
604 spin_unlock (&cq->lock); in command_do()
605 return -EAGAIN; in command_do()
613 amb_txq * txq = &dev->txq; in tx_give()
618 if (test_bit (dead, &dev->flags)) in tx_give()
621 spin_lock_irqsave (&txq->lock, flags); in tx_give()
623 if (txq->pending < txq->maximum) { in tx_give()
624 PRINTD (DBG_TX, "TX in slot %p", txq->in.ptr); in tx_give()
626 *txq->in.ptr = *tx; in tx_give()
627 txq->pending++; in tx_give()
628 txq->in.ptr = NEXTQ (txq->in.ptr, txq->in.start, txq->in.limit); in tx_give()
630 wr_mem (dev, offsetof(amb_mem, mb.adapter.tx_address), virt_to_bus (txq->in.ptr)); in tx_give()
633 if (txq->pending > txq->high) in tx_give()
634 txq->high = txq->pending; in tx_give()
635 spin_unlock_irqrestore (&txq->lock, flags); in tx_give()
638 txq->filled++; in tx_give()
639 spin_unlock_irqrestore (&txq->lock, flags); in tx_give()
640 return -EAGAIN; in tx_give()
645 amb_txq * txq = &dev->txq; in tx_take()
650 spin_lock_irqsave (&txq->lock, flags); in tx_take()
652 if (txq->pending && txq->out.ptr->handle) { in tx_take()
654 tx_complete (dev, txq->out.ptr); in tx_take()
656 txq->out.ptr->handle = 0; in tx_take()
658 txq->pending--; in tx_take()
659 txq->out.ptr = NEXTQ (txq->out.ptr, txq->out.start, txq->out.limit); in tx_take()
661 spin_unlock_irqrestore (&txq->lock, flags); in tx_take()
665 spin_unlock_irqrestore (&txq->lock, flags); in tx_take()
666 return -1; in tx_take()
673 amb_rxq * rxq = &dev->rxq[pool]; in rx_give()
678 spin_lock_irqsave (&rxq->lock, flags); in rx_give()
680 if (rxq->pending < rxq->maximum) { in rx_give()
681 PRINTD (DBG_RX, "RX in slot %p", rxq->in.ptr); in rx_give()
683 *rxq->in.ptr = *rx; in rx_give()
684 rxq->pending++; in rx_give()
685 rxq->in.ptr = NEXTQ (rxq->in.ptr, rxq->in.start, rxq->in.limit); in rx_give()
687 wr_mem (dev, offsetof(amb_mem, mb.adapter.rx_address[pool]), virt_to_bus (rxq->in.ptr)); in rx_give()
689 spin_unlock_irqrestore (&rxq->lock, flags); in rx_give()
692 spin_unlock_irqrestore (&rxq->lock, flags); in rx_give()
693 return -1; in rx_give()
698 amb_rxq * rxq = &dev->rxq[pool]; in rx_take()
703 spin_lock_irqsave (&rxq->lock, flags); in rx_take()
705 if (rxq->pending && (rxq->out.ptr->status || rxq->out.ptr->length)) { in rx_take()
707 rx_complete (dev, rxq->out.ptr); in rx_take()
709 rxq->out.ptr->status = 0; in rx_take()
710 rxq->out.ptr->length = 0; in rx_take()
712 rxq->pending--; in rx_take()
713 rxq->out.ptr = NEXTQ (rxq->out.ptr, rxq->out.start, rxq->out.limit); in rx_take()
715 if (rxq->pending < rxq->low) in rx_take()
716 rxq->low = rxq->pending; in rx_take()
717 spin_unlock_irqrestore (&rxq->lock, flags); in rx_take()
720 if (!rxq->pending && rxq->buffers_wanted) in rx_take()
721 rxq->emptied++; in rx_take()
722 spin_unlock_irqrestore (&rxq->lock, flags); in rx_take()
723 return -1; in rx_take()
731 amb_rxq * rxq = &dev->rxq[pool]; in drain_rx_pool()
735 if (test_bit (dead, &dev->flags)) in drain_rx_pool()
741 if (rxq->pending > rxq->buffers_wanted) { in drain_rx_pool()
742 command cmd; in drain_rx_pool() local
743 cmd.request = cpu_to_be32 (SRB_FLUSH_BUFFER_Q); in drain_rx_pool()
744 cmd.args.flush.flags = cpu_to_be32 (pool << SRB_POOL_SHIFT); in drain_rx_pool()
745 while (command_do (dev, &cmd)) in drain_rx_pool()
748 while (rxq->pending > rxq->buffers_wanted) in drain_rx_pool()
773 if (test_bit (dead, &dev->flags)) in fill_rx_pool()
776 rxq = &dev->rxq[pool]; in fill_rx_pool()
777 while (rxq->pending < rxq->maximum && rxq->pending < rxq->buffers_wanted) { in fill_rx_pool()
779 struct sk_buff * skb = alloc_skb (rxq->buffer_size, priority); in fill_rx_pool()
784 if (check_area (skb->data, skb->truesize)) { in fill_rx_pool()
790 skb, skb->head, (long) skb_end_offset(skb)); in fill_rx_pool()
792 rx.host_address = cpu_to_be32 (virt_to_bus (skb->data)); in fill_rx_pool()
847 wr_plain (dev, offsetof(amb_mem, interrupt), -1); in interrupt_handler()
876 unsigned char exp = -1; // hush gcc in make_rate()
877 unsigned int man = -1; // hush gcc in make_rate()
881 // rates in cells per second, ITU format (nasty 16-bit floating-point) in make_rate()
882 // given 5-bit e and 9-bit m: in make_rate()
885 // (bit 15 is "reserved", bit 14 "non-zero") in make_rate()
887 // largest rate is (1+511/512)*2^31 = 4290772992 (< 2^32-1) in make_rate()
888 // smallest non-zero rate is (1+0/512)*2^0 = 1 (> 0) in make_rate()
891 // remove top bit and shift (rounding if feeling clever) by 9-e in make_rate()
899 return -EINVAL; in make_rate()
911 // invariant: rate = man*2^(exp-31) in make_rate()
913 exp = exp - 1; in make_rate()
918 // rate = (2^31+(man-2^31))*2^(exp-31) in make_rate()
919 // rate = (1+(man-2^31)/2^31)*2^exp in make_rate()
921 man &= 0xffffffffU; // a nop on 32-bit systems in make_rate()
924 // exp is in the range 0 to 31, man is in the range 0 to 2^32-1 in make_rate()
925 // time to lose significance... we want m in the range 0 to 2^9-1 in make_rate()
933 man = man>>(32-9); in make_rate()
939 man = (man>>(32-9)) + 1; in make_rate()
946 man = (man>>(32-9)); in make_rate()
952 if (man & (1<<(32-9-1))) { in make_rate()
953 man = (man>>(32-9)) + 1; in make_rate()
960 man = (man>>(32-9)); in make_rate()
967 // zero rate - not representable in make_rate()
970 return -EINVAL; in make_rate()
985 ? (1 << exp) + (man << (exp-9)) in make_rate()
986 : (1 << exp) + ((man + (1<<(9-exp-1))) >> (9-exp)); in make_rate()
1005 u16 tx_rate_bits = -1; // hush gcc in amb_open()
1006 u16 tx_vc_bits = -1; // hush gcc in amb_open()
1007 u16 tx_frame_bits = -1; // hush gcc in amb_open()
1009 amb_dev * dev = AMB_DEV(atm_vcc->dev); in amb_open()
1011 unsigned char pool = -1; // hush gcc in amb_open()
1012 short vpi = atm_vcc->vpi; in amb_open()
1013 int vci = atm_vcc->vci; in amb_open()
1021 return -EINVAL; in amb_open()
1028 return -EINVAL; in amb_open()
1031 qos = &atm_vcc->qos; in amb_open()
1033 if (qos->aal != ATM_AAL5) { in amb_open()
1035 return -EINVAL; in amb_open()
1041 txtp = &qos->txtp; in amb_open()
1042 if (txtp->traffic_class != ATM_NONE) { in amb_open()
1043 switch (txtp->traffic_class) { in amb_open()
1045 // we take "the PCR" as a rate-cap in amb_open()
1056 pcr = -pcr; in amb_open()
1076 // PRINTD (DBG_QOS, "request for non-UBR/ABR denied"); in amb_open()
1077 PRINTD (DBG_QOS, "request for non-UBR denied"); in amb_open()
1078 return -EINVAL; in amb_open()
1086 rxtp = &qos->rxtp; in amb_open()
1087 if (rxtp->traffic_class == ATM_NONE) { in amb_open()
1092 if ((unsigned int) rxtp->max_sdu <= dev->rxq[pool].buffer_size) { in amb_open()
1094 pool, rxtp->max_sdu, dev->rxq[pool].buffer_size); in amb_open()
1100 rxtp->max_sdu); in amb_open()
1101 return -EINVAL; in amb_open()
1104 switch (rxtp->traffic_class) { in amb_open()
1116 // PRINTD (DBG_QOS, "request for non-UBR/ABR denied"); in amb_open()
1117 PRINTD (DBG_QOS, "request for non-UBR denied"); in amb_open()
1118 return -EINVAL; in amb_open()
1127 return -ENOMEM; in amb_open()
1129 atm_vcc->dev_data = (void *) vcc; in amb_open()
1135 set_bit(ATM_VF_ADDR,&atm_vcc->flags); in amb_open()
1137 if (txtp->traffic_class != ATM_NONE) { in amb_open()
1138 command cmd; in amb_open() local
1140 vcc->tx_frame_bits = tx_frame_bits; in amb_open()
1142 mutex_lock(&dev->vcc_sf); in amb_open()
1143 if (dev->rxer[vci]) { in amb_open()
1145 cmd.request = cpu_to_be32 (SRB_MODIFY_VC_RATE); in amb_open()
1146 cmd.args.modify_rate.vc = cpu_to_be32 (vci); // vpi 0 in amb_open()
1147 cmd.args.modify_rate.rate = cpu_to_be32 (tx_rate_bits << SRB_RATE_SHIFT); in amb_open()
1148 while (command_do (dev, &cmd)) in amb_open()
1151 cmd.request = cpu_to_be32 (SRB_MODIFY_VC_FLAGS); in amb_open()
1152 cmd.args.modify_flags.vc = cpu_to_be32 (vci); // vpi 0 in amb_open()
1153 cmd.args.modify_flags.flags = cpu_to_be32 in amb_open()
1154 ( (AMB_VCC(dev->rxer[vci])->rx_info.pool << SRB_POOL_SHIFT) in amb_open()
1156 while (command_do (dev, &cmd)) in amb_open()
1160 cmd.request = cpu_to_be32 (SRB_OPEN_VC); in amb_open()
1161 cmd.args.open.vc = cpu_to_be32 (vci); // vpi 0 in amb_open()
1162 cmd.args.open.flags = cpu_to_be32 (tx_vc_bits << SRB_FLAGS_SHIFT); in amb_open()
1163 cmd.args.open.rate = cpu_to_be32 (tx_rate_bits << SRB_RATE_SHIFT); in amb_open()
1164 while (command_do (dev, &cmd)) in amb_open()
1167 dev->txer[vci].tx_present = 1; in amb_open()
1168 mutex_unlock(&dev->vcc_sf); in amb_open()
1171 if (rxtp->traffic_class != ATM_NONE) { in amb_open()
1172 command cmd; in amb_open() local
1174 vcc->rx_info.pool = pool; in amb_open()
1176 mutex_lock(&dev->vcc_sf); in amb_open()
1178 if (!dev->rxq[pool].buffers_wanted) in amb_open()
1179 dev->rxq[pool].buffers_wanted = rx_lats; in amb_open()
1180 dev->rxq[pool].buffers_wanted += 1; in amb_open()
1183 if (dev->txer[vci].tx_present) { in amb_open()
1186 cmd.request = cpu_to_be32 (SRB_MODIFY_VC_FLAGS); in amb_open()
1187 cmd.args.modify_flags.vc = cpu_to_be32 (vci); // vpi 0 in amb_open()
1188 cmd.args.modify_flags.flags = cpu_to_be32 in amb_open()
1190 | (dev->txer[vci].tx_vc_bits << SRB_FLAGS_SHIFT) ); in amb_open()
1193 cmd.request = cpu_to_be32 (SRB_OPEN_VC); in amb_open()
1194 cmd.args.open.vc = cpu_to_be32 (vci); // vpi 0 in amb_open()
1195 cmd.args.open.flags = cpu_to_be32 (pool << SRB_POOL_SHIFT); in amb_open()
1196 cmd.args.open.rate = cpu_to_be32 (0); in amb_open()
1198 while (command_do (dev, &cmd)) in amb_open()
1201 dev->rxer[vci] = atm_vcc; in amb_open()
1202 mutex_unlock(&dev->vcc_sf); in amb_open()
1206 set_bit(ATM_VF_READY,&atm_vcc->flags); in amb_open()
1214 amb_dev * dev = AMB_DEV (atm_vcc->dev); in amb_close()
1216 u16 vci = atm_vcc->vci; in amb_close()
1221 clear_bit(ATM_VF_READY,&atm_vcc->flags); in amb_close()
1224 if (atm_vcc->qos.txtp.traffic_class != ATM_NONE) { in amb_close()
1225 command cmd; in amb_close() local
1227 mutex_lock(&dev->vcc_sf); in amb_close()
1228 if (dev->rxer[vci]) { in amb_close()
1230 cmd.request = cpu_to_be32 (SRB_MODIFY_VC_RATE); in amb_close()
1231 cmd.args.modify_rate.vc = cpu_to_be32 (vci); // vpi 0 in amb_close()
1232 cmd.args.modify_rate.rate = cpu_to_be32 (0); in amb_close()
1236 cmd.request = cpu_to_be32 (SRB_CLOSE_VC); in amb_close()
1237 cmd.args.close.vc = cpu_to_be32 (vci); // vpi 0 in amb_close()
1239 dev->txer[vci].tx_present = 0; in amb_close()
1240 while (command_do (dev, &cmd)) in amb_close()
1242 mutex_unlock(&dev->vcc_sf); in amb_close()
1246 if (atm_vcc->qos.rxtp.traffic_class != ATM_NONE) { in amb_close()
1247 command cmd; in amb_close() local
1250 unsigned char pool = vcc->rx_info.pool; in amb_close()
1252 mutex_lock(&dev->vcc_sf); in amb_close()
1253 if (dev->txer[vci].tx_present) { in amb_close()
1255 cmd.request = cpu_to_be32 (SRB_MODIFY_VC_FLAGS); in amb_close()
1256 cmd.args.modify_flags.vc = cpu_to_be32 (vci); // vpi 0 in amb_close()
1257 cmd.args.modify_flags.flags = cpu_to_be32 in amb_close()
1258 (dev->txer[vci].tx_vc_bits << SRB_FLAGS_SHIFT); in amb_close()
1261 cmd.request = cpu_to_be32 (SRB_CLOSE_VC); in amb_close()
1262 cmd.args.close.vc = cpu_to_be32 (vci); // vpi 0 in amb_close()
1264 // forget the rxer - no more skbs will be pushed in amb_close()
1265 if (atm_vcc != dev->rxer[vci]) in amb_close()
1268 vcc, dev->rxer[vci]); in amb_close()
1269 dev->rxer[vci] = NULL; in amb_close()
1270 while (command_do (dev, &cmd)) in amb_close()
1274 dev->rxq[pool].buffers_wanted -= 1; in amb_close()
1275 if (dev->rxq[pool].buffers_wanted == rx_lats) { in amb_close()
1276 dev->rxq[pool].buffers_wanted = 0; in amb_close()
1279 mutex_unlock(&dev->vcc_sf); in amb_close()
1286 clear_bit(ATM_VF_ADDR,&atm_vcc->flags); in amb_close()
1294 amb_dev * dev = AMB_DEV(atm_vcc->dev); in amb_send()
1296 u16 vc = atm_vcc->vci; in amb_send()
1297 unsigned int tx_len = skb->len; in amb_send()
1298 unsigned char * tx_data = skb->data; in amb_send()
1302 if (test_bit (dead, &dev->flags)) in amb_send()
1303 return -EIO; in amb_send()
1310 if (!dev->txer[vc].tx_present) { in amb_send()
1311 PRINTK (KERN_ERR, "attempt to send on RX-only VC %x", vc); in amb_send()
1312 return -EBADFD; in amb_send()
1318 ATM_SKB(skb)->vcc = atm_vcc; in amb_send()
1320 if (skb->len > (size_t) atm_vcc->qos.txtp.max_sdu) { in amb_send()
1322 return -EIO; in amb_send()
1325 if (check_area (skb->data, skb->len)) { in amb_send()
1326 atomic_inc(&atm_vcc->stats->tx_err); in amb_send()
1327 return -ENOMEM; // ? in amb_send()
1334 return -ENOMEM; in amb_send()
1338 return -ENOMEM; in amb_send()
1342 tx_descr->skb = skb; in amb_send()
1344 tx_descr->tx_frag.bytes = cpu_to_be32 (tx_len); in amb_send()
1345 tx_descr->tx_frag.address = cpu_to_be32 (virt_to_bus (tx_data)); in amb_send()
1347 tx_descr->tx_frag_end.handle = virt_to_bus (tx_descr); in amb_send()
1348 tx_descr->tx_frag_end.vc = 0; in amb_send()
1349 tx_descr->tx_frag_end.next_descriptor_length = 0; in amb_send()
1350 tx_descr->tx_frag_end.next_descriptor = 0; in amb_send()
1352 tx_descr->tx_frag_end.cpcs_uu = 0; in amb_send()
1353 tx_descr->tx_frag_end.cpi = 0; in amb_send()
1354 tx_descr->tx_frag_end.pad = 0; in amb_send()
1357 tx.vc = cpu_to_be16 (vcc->tx_frame_bits | vc); in amb_send()
1359 tx.tx_descr_addr = cpu_to_be32 (virt_to_bus (&tx_descr->tx_frag)); in amb_send()
1374 amb_dev * dev = AMB_DEV (atm_vcc->dev);
1376 unsigned char pool = vcc->rx_info.pool;
1388 rx.host_address = cpu_to_be32 (virt_to_bus (skb->data));
1390 skb->data = skb->head;
1392 skb->len = 0;
1418 if (!left--) { in amb_proc_read()
1419 amb_stats * s = &dev->stats; in amb_proc_read()
1423 s->tx_ok, s->rx.ok, s->rx.error, in amb_proc_read()
1424 s->rx.badcrc, s->rx.toolong, in amb_proc_read()
1425 s->rx.aborted, s->rx.unused); in amb_proc_read()
1428 if (!left--) { in amb_proc_read()
1429 amb_cq * c = &dev->cq; in amb_proc_read()
1430 return sprintf (page, "cmd queue [cur/hi/max]: %u/%u/%u. ", in amb_proc_read()
1431 c->pending, c->high, c->maximum); in amb_proc_read()
1434 if (!left--) { in amb_proc_read()
1435 amb_txq * t = &dev->txq; in amb_proc_read()
1437 t->pending, t->maximum, t->high, t->filled); in amb_proc_read()
1440 if (!left--) { in amb_proc_read()
1443 amb_rxq * r = &dev->rxq[pool]; in amb_proc_read()
1445 r->pending, r->maximum, r->buffers_wanted, r->low, r->emptied); in amb_proc_read()
1451 if (!left--) { in amb_proc_read()
1454 amb_rxq * r = &dev->rxq[pool]; in amb_proc_read()
1455 count += sprintf (page+count, " %u", r->buffer_size); in amb_proc_read()
1462 if (!left--) { in amb_proc_read()
1484 // could collect device-specific (not driver/atm-linux) stats here in do_housekeeping()
1488 mod_timer(&dev->housekeeping, jiffies + 10*HZ); in do_housekeeping()
1515 return -ENOMEM; in create_queues()
1520 return -ENOMEM; in create_queues()
1529 command * cmd = memory; in create_queues() local
1530 amb_cq * cq = &dev->cq; in create_queues()
1532 cq->pending = 0; in create_queues()
1533 cq->high = 0; in create_queues()
1534 cq->maximum = cmds - 1; in create_queues()
1536 cq->ptrs.start = cmd; in create_queues()
1537 cq->ptrs.in = cmd; in create_queues()
1538 cq->ptrs.out = cmd; in create_queues()
1539 cq->ptrs.limit = cmd + cmds; in create_queues()
1541 memory = cq->ptrs.limit; in create_queues()
1549 amb_txq * txq = &dev->txq; in create_queues()
1551 txq->pending = 0; in create_queues()
1552 txq->high = 0; in create_queues()
1553 txq->filled = 0; in create_queues()
1554 txq->maximum = txs - 1; in create_queues()
1556 txq->in.start = in; in create_queues()
1557 txq->in.ptr = in; in create_queues()
1558 txq->in.limit = in + txs; in create_queues()
1560 memory = txq->in.limit; in create_queues()
1563 txq->out.start = out; in create_queues()
1564 txq->out.ptr = out; in create_queues()
1565 txq->out.limit = out + txs; in create_queues()
1567 memory = txq->out.limit; in create_queues()
1575 amb_rxq * rxq = &dev->rxq[pool]; in create_queues()
1577 rxq->buffer_size = rx_buffer_sizes[pool]; in create_queues()
1578 rxq->buffers_wanted = 0; in create_queues()
1580 rxq->pending = 0; in create_queues()
1581 rxq->low = rxs[pool] - 1; in create_queues()
1582 rxq->emptied = 0; in create_queues()
1583 rxq->maximum = rxs[pool] - 1; in create_queues()
1585 rxq->in.start = in; in create_queues()
1586 rxq->in.ptr = in; in create_queues()
1587 rxq->in.limit = in + rxs[pool]; in create_queues()
1589 memory = rxq->in.limit; in create_queues()
1592 rxq->out.start = out; in create_queues()
1593 rxq->out.ptr = out; in create_queues()
1594 rxq->out.limit = out + rxs[pool]; in create_queues()
1596 memory = rxq->out.limit; in create_queues()
1603 kfree (limit - total); in create_queues()
1604 return -ENOMEM; in create_queues()
1613 void * memory = dev->cq.ptrs.start; in destroy_queues()
1625 // centisecond timeouts - guessing away here
1655 static int decode_loader_result (loader_command cmd, u32 result) in decode_loader_result() argument
1660 if (result == command_successes[cmd]) in decode_loader_result()
1665 res = -EINVAL; in decode_loader_result()
1669 res = -ETIMEDOUT; in decode_loader_result()
1677 res = -EIO; in decode_loader_result()
1685 res = -EINVAL; in decode_loader_result()
1693 res = -EINVAL; in decode_loader_result()
1697 res = -EIO; in decode_loader_result()
1705 res = -EIO; in decode_loader_result()
1709 res = -EINVAL; in decode_loader_result()
1713 res = -EINVAL; in decode_loader_result()
1726 loader_command cmd) in do_loader_command() argument
1737 correctly byte-ordered so we leave it alone. Hit the doorbell in do_loader_command()
1742 lb->result = 0; in do_loader_command()
1743 lb->command = cpu_to_be32 (cmd); in do_loader_command()
1744 lb->valid = cpu_to_be32 (DMA_VALID); in do_loader_command()
1749 timeout = command_timeouts[cmd] * 10; in do_loader_command()
1751 while (!lb->result || lb->result == cpu_to_be32 (COMMAND_IN_PROGRESS)) in do_loader_command()
1755 PRINTD (DBG_LOAD|DBG_ERR, "command %d timed out", cmd); in do_loader_command()
1758 return -ETIMEDOUT; in do_loader_command()
1761 if (cmd == adapter_start) { in do_loader_command()
1769 be32_to_cpu (lb->result)); in do_loader_command()
1771 return -ETIMEDOUT; in do_loader_command()
1775 return decode_loader_result (cmd, be32_to_cpu (lb->result)); in do_loader_command()
1793 *version = be32_to_cpu (lb->payload.version); in get_loader_version()
1802 transfer_block * tb = &lb->payload.transfer; in loader_write()
1806 tb->address = rec->addr; in loader_write()
1807 tb->count = cpu_to_be32(be16_to_cpu(rec->len) / 4); in loader_write()
1808 memcpy(tb->data, rec->data, be16_to_cpu(rec->len)); in loader_write()
1817 transfer_block * tb = &lb->payload.transfer; in loader_verify()
1822 tb->address = rec->addr; in loader_verify()
1823 tb->count = cpu_to_be32(be16_to_cpu(rec->len) / 4); in loader_verify()
1825 if (!res && memcmp(tb->data, rec->data, be16_to_cpu(rec->len))) in loader_verify()
1826 res = -EINVAL; in loader_verify()
1836 lb->payload.start = cpu_to_be32 (address); in loader_start()
1844 PRINTK (KERN_ERR, "self-test failed: %s", msg); in sf()
1861 wr_plain (dev, offsetof(amb_mem, interrupt), -1); in amb_reset()
1863 // clear self-test done flag in amb_reset()
1872 // half second time-out in amb_reset()
1879 return -ETIMEDOUT; in amb_reset()
1882 // get results of self-test in amb_reset()
1883 // XXX double check byte-order in amb_reset()
1899 return -EIO; in amb_reset()
1916 res = request_ihex_firmware(&fw, "atmsar11.fw", &dev->pci_dev->dev); in ucode_init()
1923 rec = (const struct ihex_binrec *)fw->data; in ucode_init()
1924 if (be16_to_cpu(rec->len) != sizeof(__be32) || be32_to_cpu(rec->addr)) { in ucode_init()
1928 start_address = be32_to_cpup((__be32 *)rec->data); in ucode_init()
1935 PRINTD (DBG_LOAD, "starting region (%x, %u)", be32_to_cpu(rec->addr), in ucode_init()
1936 be16_to_cpu(rec->len)); in ucode_init()
1937 if (be16_to_cpu(rec->len) > 4 * MAX_TRANSFER_DATA) { in ucode_init()
1941 if (be16_to_cpu(rec->len) & 3) { in ucode_init()
1962 return -EINVAL; in ucode_init()
1979 a.command_start = bus_addr (dev->cq.ptrs.start); in amb_talk()
1980 a.command_end = bus_addr (dev->cq.ptrs.limit); in amb_talk()
1981 a.tx_start = bus_addr (dev->txq.in.start); in amb_talk()
1982 a.tx_end = bus_addr (dev->txq.in.limit); in amb_talk()
1983 a.txcom_start = bus_addr (dev->txq.out.start); in amb_talk()
1984 a.txcom_end = bus_addr (dev->txq.out.limit); in amb_talk()
1988 a.rec_struct[pool].buffer_start = bus_addr (dev->rxq[pool].in.start); in amb_talk()
1989 a.rec_struct[pool].buffer_end = bus_addr (dev->rxq[pool].in.limit); in amb_talk()
1990 a.rec_struct[pool].rx_start = bus_addr (dev->rxq[pool].out.start); in amb_talk()
1991 a.rec_struct[pool].rx_end = bus_addr (dev->rxq[pool].out.limit); in amb_talk()
1992 a.rec_struct[pool].buffer_size = cpu_to_be32 (dev->rxq[pool].buffer_size); in amb_talk()
2012 return -ETIMEDOUT; in amb_talk()
2023 command cmd; in amb_ucode_version() local
2024 cmd.request = cpu_to_be32 (SRB_GET_VERSION); in amb_ucode_version()
2025 while (command_do (dev, &cmd)) { in amb_ucode_version()
2029 major = be32_to_cpu (cmd.args.version.major); in amb_ucode_version()
2030 minor = be32_to_cpu (cmd.args.version.minor); in amb_ucode_version()
2039 command cmd; in amb_esi() local
2041 cmd.request = cpu_to_be32 (SRB_GET_BIA); in amb_esi()
2042 while (command_do (dev, &cmd)) { in amb_esi()
2046 lower4 = be32_to_cpu (cmd.args.bia.lower4); in amb_esi()
2047 upper2 = be32_to_cpu (cmd.args.bia.upper2); in amb_esi()
2058 esi[i] = bitrev8(upper2>>(8*(i-4))); in amb_esi()
2070 // fix up the PLX-mapped window base address to match the block in fixup_plx_window()
2121 return -EINVAL; in amb_init()
2129 dev->pci_dev = pci_dev; in setup_dev()
2132 dev->iobase = pci_resource_start (pci_dev, 1); in setup_dev()
2133 dev->irq = pci_dev->irq; in setup_dev()
2134 dev->membase = bus_to_virt(pci_resource_start(pci_dev, 0)); in setup_dev()
2137 dev->flags = 0; in setup_dev()
2140 // ATM_OC3_PCR = 1555200000/8/270*260/53 - 29/53 in setup_dev()
2142 dev->tx_avail = ATM_OC3_PCR; in setup_dev()
2143 dev->rx_avail = ATM_OC3_PCR; in setup_dev()
2145 // semaphore for txer/rxer modifications - we cannot use a in setup_dev()
2147 mutex_init(&dev->vcc_sf); in setup_dev()
2150 // consider replacing "int pending" -> "atomic_t available" in setup_dev()
2152 spin_lock_init (&dev->cq.lock); in setup_dev()
2153 spin_lock_init (&dev->txq.lock); in setup_dev()
2155 spin_lock_init (&dev->rxq[pool].lock); in setup_dev()
2187 PRINTK (KERN_ERR, "skipped broken (PLX rev 2) card"); in amb_probe()
2192 irq = pci_dev->irq; in amb_probe()
2194 if (pci_dev->device == PCI_DEVICE_ID_MADGE_AMBASSADOR_BAD) { in amb_probe()
2195 PRINTK (KERN_ERR, "skipped broken (PLX rev 2) card"); in amb_probe()
2196 err = -EINVAL; in amb_probe()
2215 err = -ENOMEM; in amb_probe()
2236 dev->atm_dev = atm_dev_register (DEV_LABEL, &pci_dev->dev, &amb_ops, -1, in amb_probe()
2238 if (!dev->atm_dev) { in amb_probe()
2240 err = -EINVAL; in amb_probe()
2245 dev->atm_dev->number, dev, dev->atm_dev); in amb_probe()
2246 dev->atm_dev->dev_data = (void *) dev; in amb_probe()
2249 amb_esi (dev, dev->atm_dev->esi); in amb_probe()
2252 dev->atm_dev->ci_range.vpi_bits = NUM_VPI_BITS; in amb_probe()
2253 dev->atm_dev->ci_range.vci_bits = NUM_VCI_BITS; in amb_probe()
2255 timer_setup(&dev->housekeeping, do_housekeeping, 0); in amb_probe()
2256 mod_timer(&dev->housekeeping, jiffies); in amb_probe()
2284 PRINTD(DBG_INFO|DBG_INIT, "closing %p (atm_dev = %p)", dev, dev->atm_dev); in amb_remove_one()
2285 del_timer_sync(&dev->housekeeping); in amb_remove_one()
2290 free_irq(dev->irq, dev); in amb_remove_one()
2293 atm_dev_deregister(dev->atm_dev); in amb_remove_one()