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68#define VERSION "2.07"
69
70static const char * const boot_msg =
71 "SysKonnect FDDI PCI Adapter driver v" VERSION " for\n"
72 " SK-55xx/SK-58xx adapters (SK-NET FDDI-FP/UP/LP)";
73
74
75
76#include <linux/capability.h>
77#include <linux/module.h>
78#include <linux/kernel.h>
79#include <linux/errno.h>
80#include <linux/ioport.h>
81#include <linux/slab.h>
82#include <linux/interrupt.h>
83#include <linux/pci.h>
84#include <linux/netdevice.h>
85#include <linux/fddidevice.h>
86#include <linux/skbuff.h>
87#include <linux/bitops.h>
88
89#include <asm/byteorder.h>
90#include <asm/io.h>
91#include <asm/uaccess.h>
92
93#include "h/types.h"
94#undef ADDR
95#include "h/skfbi.h"
96#include "h/fddi.h"
97#include "h/smc.h"
98#include "h/smtstate.h"
99
100
101
102static int skfp_driver_init(struct net_device *dev);
103static int skfp_open(struct net_device *dev);
104static int skfp_close(struct net_device *dev);
105static irqreturn_t skfp_interrupt(int irq, void *dev_id);
106static struct net_device_stats *skfp_ctl_get_stats(struct net_device *dev);
107static void skfp_ctl_set_multicast_list(struct net_device *dev);
108static void skfp_ctl_set_multicast_list_wo_lock(struct net_device *dev);
109static int skfp_ctl_set_mac_address(struct net_device *dev, void *addr);
110static int skfp_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
111static netdev_tx_t skfp_send_pkt(struct sk_buff *skb,
112 struct net_device *dev);
113static void send_queued_packets(struct s_smc *smc);
114static void CheckSourceAddress(unsigned char *frame, unsigned char *hw_addr);
115static void ResetAdapter(struct s_smc *smc);
116
117
118
119void *mac_drv_get_space(struct s_smc *smc, u_int size);
120void *mac_drv_get_desc_mem(struct s_smc *smc, u_int size);
121unsigned long mac_drv_virt2phys(struct s_smc *smc, void *virt);
122unsigned long dma_master(struct s_smc *smc, void *virt, int len, int flag);
123void dma_complete(struct s_smc *smc, volatile union s_fp_descr *descr,
124 int flag);
125void mac_drv_tx_complete(struct s_smc *smc, volatile struct s_smt_fp_txd *txd);
126void llc_restart_tx(struct s_smc *smc);
127void mac_drv_rx_complete(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
128 int frag_count, int len);
129void mac_drv_requeue_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
130 int frag_count);
131void mac_drv_fill_rxd(struct s_smc *smc);
132void mac_drv_clear_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
133 int frag_count);
134int mac_drv_rx_init(struct s_smc *smc, int len, int fc, char *look_ahead,
135 int la_len);
136void dump_data(unsigned char *Data, int length);
137
138
139extern u_int mac_drv_check_space(void);
140extern int mac_drv_init(struct s_smc *smc);
141extern void hwm_tx_frag(struct s_smc *smc, char far * virt, u_long phys,
142 int len, int frame_status);
143extern int hwm_tx_init(struct s_smc *smc, u_char fc, int frag_count,
144 int frame_len, int frame_status);
145extern void fddi_isr(struct s_smc *smc);
146extern void hwm_rx_frag(struct s_smc *smc, char far * virt, u_long phys,
147 int len, int frame_status);
148extern void mac_drv_rx_mode(struct s_smc *smc, int mode);
149extern void mac_drv_clear_rx_queue(struct s_smc *smc);
150extern void enable_tx_irq(struct s_smc *smc, u_short queue);
151
152static struct pci_device_id skfddi_pci_tbl[] = {
153 { PCI_VENDOR_ID_SK, PCI_DEVICE_ID_SK_FP, PCI_ANY_ID, PCI_ANY_ID, },
154 { }
155};
156MODULE_DEVICE_TABLE(pci, skfddi_pci_tbl);
157MODULE_LICENSE("GPL");
158MODULE_AUTHOR("Mirko Lindner <mlindner@syskonnect.de>");
159
160
161
162static int num_boards;
163
164static const struct net_device_ops skfp_netdev_ops = {
165 .ndo_open = skfp_open,
166 .ndo_stop = skfp_close,
167 .ndo_start_xmit = skfp_send_pkt,
168 .ndo_get_stats = skfp_ctl_get_stats,
169 .ndo_change_mtu = fddi_change_mtu,
170 .ndo_set_multicast_list = skfp_ctl_set_multicast_list,
171 .ndo_set_mac_address = skfp_ctl_set_mac_address,
172 .ndo_do_ioctl = skfp_ioctl,
173};
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204static int skfp_init_one(struct pci_dev *pdev,
205 const struct pci_device_id *ent)
206{
207 struct net_device *dev;
208 struct s_smc *smc;
209 void __iomem *mem;
210 int err;
211
212 pr_debug(KERN_INFO "entering skfp_init_one\n");
213
214 if (num_boards == 0)
215 printk("%s\n", boot_msg);
216
217 err = pci_enable_device(pdev);
218 if (err)
219 return err;
220
221 err = pci_request_regions(pdev, "skfddi");
222 if (err)
223 goto err_out1;
224
225 pci_set_master(pdev);
226
227#ifdef MEM_MAPPED_IO
228 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
229 printk(KERN_ERR "skfp: region is not an MMIO resource\n");
230 err = -EIO;
231 goto err_out2;
232 }
233
234 mem = ioremap(pci_resource_start(pdev, 0), 0x4000);
235#else
236 if (!(pci_resource_flags(pdev, 1) & IO_RESOURCE_IO)) {
237 printk(KERN_ERR "skfp: region is not PIO resource\n");
238 err = -EIO;
239 goto err_out2;
240 }
241
242 mem = ioport_map(pci_resource_start(pdev, 1), FP_IO_LEN);
243#endif
244 if (!mem) {
245 printk(KERN_ERR "skfp: Unable to map register, "
246 "FDDI adapter will be disabled.\n");
247 err = -EIO;
248 goto err_out2;
249 }
250
251 dev = alloc_fddidev(sizeof(struct s_smc));
252 if (!dev) {
253 printk(KERN_ERR "skfp: Unable to allocate fddi device, "
254 "FDDI adapter will be disabled.\n");
255 err = -ENOMEM;
256 goto err_out3;
257 }
258
259 dev->irq = pdev->irq;
260 dev->netdev_ops = &skfp_netdev_ops;
261
262 SET_NETDEV_DEV(dev, &pdev->dev);
263
264
265 smc = netdev_priv(dev);
266 smc->os.dev = dev;
267 smc->os.bus_type = SK_BUS_TYPE_PCI;
268 smc->os.pdev = *pdev;
269 smc->os.QueueSkb = MAX_TX_QUEUE_LEN;
270 smc->os.MaxFrameSize = MAX_FRAME_SIZE;
271 smc->os.dev = dev;
272 smc->hw.slot = -1;
273 smc->hw.iop = mem;
274 smc->os.ResetRequested = FALSE;
275 skb_queue_head_init(&smc->os.SendSkbQueue);
276
277 dev->base_addr = (unsigned long)mem;
278
279 err = skfp_driver_init(dev);
280 if (err)
281 goto err_out4;
282
283 err = register_netdev(dev);
284 if (err)
285 goto err_out5;
286
287 ++num_boards;
288 pci_set_drvdata(pdev, dev);
289
290 if ((pdev->subsystem_device & 0xff00) == 0x5500 ||
291 (pdev->subsystem_device & 0xff00) == 0x5800)
292 printk("%s: SysKonnect FDDI PCI adapter"
293 " found (SK-%04X)\n", dev->name,
294 pdev->subsystem_device);
295 else
296 printk("%s: FDDI PCI adapter found\n", dev->name);
297
298 return 0;
299err_out5:
300 if (smc->os.SharedMemAddr)
301 pci_free_consistent(pdev, smc->os.SharedMemSize,
302 smc->os.SharedMemAddr,
303 smc->os.SharedMemDMA);
304 pci_free_consistent(pdev, MAX_FRAME_SIZE,
305 smc->os.LocalRxBuffer, smc->os.LocalRxBufferDMA);
306err_out4:
307 free_netdev(dev);
308err_out3:
309#ifdef MEM_MAPPED_IO
310 iounmap(mem);
311#else
312 ioport_unmap(mem);
313#endif
314err_out2:
315 pci_release_regions(pdev);
316err_out1:
317 pci_disable_device(pdev);
318 return err;
319}
320
321
322
323
324static void __devexit skfp_remove_one(struct pci_dev *pdev)
325{
326 struct net_device *p = pci_get_drvdata(pdev);
327 struct s_smc *lp = netdev_priv(p);
328
329 unregister_netdev(p);
330
331 if (lp->os.SharedMemAddr) {
332 pci_free_consistent(&lp->os.pdev,
333 lp->os.SharedMemSize,
334 lp->os.SharedMemAddr,
335 lp->os.SharedMemDMA);
336 lp->os.SharedMemAddr = NULL;
337 }
338 if (lp->os.LocalRxBuffer) {
339 pci_free_consistent(&lp->os.pdev,
340 MAX_FRAME_SIZE,
341 lp->os.LocalRxBuffer,
342 lp->os.LocalRxBufferDMA);
343 lp->os.LocalRxBuffer = NULL;
344 }
345#ifdef MEM_MAPPED_IO
346 iounmap(lp->hw.iop);
347#else
348 ioport_unmap(lp->hw.iop);
349#endif
350 pci_release_regions(pdev);
351 free_netdev(p);
352
353 pci_disable_device(pdev);
354 pci_set_drvdata(pdev, NULL);
355}
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382static int skfp_driver_init(struct net_device *dev)
383{
384 struct s_smc *smc = netdev_priv(dev);
385 skfddi_priv *bp = &smc->os;
386 int err = -EIO;
387
388 pr_debug(KERN_INFO "entering skfp_driver_init\n");
389
390
391 bp->base_addr = dev->base_addr;
392
393
394 smc->hw.irq = dev->irq;
395
396 spin_lock_init(&bp->DriverLock);
397
398
399 bp->LocalRxBuffer = pci_alloc_consistent(&bp->pdev, MAX_FRAME_SIZE, &bp->LocalRxBufferDMA);
400 if (!bp->LocalRxBuffer) {
401 printk("could not allocate mem for ");
402 printk("LocalRxBuffer: %d byte\n", MAX_FRAME_SIZE);
403 goto fail;
404 }
405
406
407 bp->SharedMemSize = mac_drv_check_space();
408 pr_debug(KERN_INFO "Memory for HWM: %ld\n", bp->SharedMemSize);
409 if (bp->SharedMemSize > 0) {
410 bp->SharedMemSize += 16;
411
412 bp->SharedMemAddr = pci_alloc_consistent(&bp->pdev,
413 bp->SharedMemSize,
414 &bp->SharedMemDMA);
415 if (!bp->SharedMemSize) {
416 printk("could not allocate mem for ");
417 printk("hardware module: %ld byte\n",
418 bp->SharedMemSize);
419 goto fail;
420 }
421 bp->SharedMemHeap = 0;
422
423 } else {
424 bp->SharedMemAddr = NULL;
425 bp->SharedMemHeap = 0;
426 }
427
428 memset(bp->SharedMemAddr, 0, bp->SharedMemSize);
429
430 card_stop(smc);
431
432 pr_debug(KERN_INFO "mac_drv_init()..\n");
433 if (mac_drv_init(smc) != 0) {
434 pr_debug(KERN_INFO "mac_drv_init() failed.\n");
435 goto fail;
436 }
437 read_address(smc, NULL);
438 pr_debug(KERN_INFO "HW-Addr: %02x %02x %02x %02x %02x %02x\n",
439 smc->hw.fddi_canon_addr.a[0],
440 smc->hw.fddi_canon_addr.a[1],
441 smc->hw.fddi_canon_addr.a[2],
442 smc->hw.fddi_canon_addr.a[3],
443 smc->hw.fddi_canon_addr.a[4],
444 smc->hw.fddi_canon_addr.a[5]);
445 memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, 6);
446
447 smt_reset_defaults(smc, 0);
448
449 return (0);
450
451fail:
452 if (bp->SharedMemAddr) {
453 pci_free_consistent(&bp->pdev,
454 bp->SharedMemSize,
455 bp->SharedMemAddr,
456 bp->SharedMemDMA);
457 bp->SharedMemAddr = NULL;
458 }
459 if (bp->LocalRxBuffer) {
460 pci_free_consistent(&bp->pdev, MAX_FRAME_SIZE,
461 bp->LocalRxBuffer, bp->LocalRxBufferDMA);
462 bp->LocalRxBuffer = NULL;
463 }
464 return err;
465}
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489static int skfp_open(struct net_device *dev)
490{
491 struct s_smc *smc = netdev_priv(dev);
492 int err;
493
494 pr_debug(KERN_INFO "entering skfp_open\n");
495
496 err = request_irq(dev->irq, skfp_interrupt, IRQF_SHARED,
497 dev->name, dev);
498 if (err)
499 return err;
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511 read_address(smc, NULL);
512 memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, 6);
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514 init_smt(smc, NULL);
515 smt_online(smc, 1);
516 STI_FBI();
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519 mac_clear_multicast(smc);
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522 mac_drv_rx_mode(smc, RX_DISABLE_PROMISC);
523
524 netif_start_queue(dev);
525 return (0);
526}
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556static int skfp_close(struct net_device *dev)
557{
558 struct s_smc *smc = netdev_priv(dev);
559 skfddi_priv *bp = &smc->os;
560
561 CLI_FBI();
562 smt_reset_defaults(smc, 1);
563 card_stop(smc);
564 mac_drv_clear_tx_queue(smc);
565 mac_drv_clear_rx_queue(smc);
566
567 netif_stop_queue(dev);
568
569 free_irq(dev->irq, dev);
570
571 skb_queue_purge(&bp->SendSkbQueue);
572 bp->QueueSkb = MAX_TX_QUEUE_LEN;
573
574 return (0);
575}
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613static irqreturn_t skfp_interrupt(int irq, void *dev_id)
614{
615 struct net_device *dev = dev_id;
616 struct s_smc *smc;
617 skfddi_priv *bp;
618
619 smc = netdev_priv(dev);
620 bp = &smc->os;
621
622
623 if (inpd(ADDR(B0_IMSK)) == 0) {
624
625 return IRQ_NONE;
626 }
627
628 if ((inpd(ISR_A) & smc->hw.is_imask) == 0) {
629
630 return IRQ_NONE;
631 }
632 CLI_FBI();
633 spin_lock(&bp->DriverLock);
634
635
636 fddi_isr(smc);
637
638 if (smc->os.ResetRequested) {
639 ResetAdapter(smc);
640 smc->os.ResetRequested = FALSE;
641 }
642 spin_unlock(&bp->DriverLock);
643 STI_FBI();
644
645 return IRQ_HANDLED;
646}
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680static struct net_device_stats *skfp_ctl_get_stats(struct net_device *dev)
681{
682 struct s_smc *bp = netdev_priv(dev);
683
684
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686 bp->os.MacStat.port_bs_flag[0] = 0x1234;
687 bp->os.MacStat.port_bs_flag[1] = 0x5678;
688
689#if 0
690
691
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693
694 memcpy(bp->stats.smt_station_id, &bp->cmd_rsp_virt->smt_mib_get.smt_station_id, sizeof(bp->cmd_rsp_virt->smt_mib_get.smt_station_id));
695 bp->stats.smt_op_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_op_version_id;
696 bp->stats.smt_hi_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_hi_version_id;
697 bp->stats.smt_lo_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_lo_version_id;
698 memcpy(bp->stats.smt_user_data, &bp->cmd_rsp_virt->smt_mib_get.smt_user_data, sizeof(bp->cmd_rsp_virt->smt_mib_get.smt_user_data));
699 bp->stats.smt_mib_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_mib_version_id;
700 bp->stats.smt_mac_cts = bp->cmd_rsp_virt->smt_mib_get.smt_mac_ct;
701 bp->stats.smt_non_master_cts = bp->cmd_rsp_virt->smt_mib_get.smt_non_master_ct;
702 bp->stats.smt_master_cts = bp->cmd_rsp_virt->smt_mib_get.smt_master_ct;
703 bp->stats.smt_available_paths = bp->cmd_rsp_virt->smt_mib_get.smt_available_paths;
704 bp->stats.smt_config_capabilities = bp->cmd_rsp_virt->smt_mib_get.smt_config_capabilities;
705 bp->stats.smt_config_policy = bp->cmd_rsp_virt->smt_mib_get.smt_config_policy;
706 bp->stats.smt_connection_policy = bp->cmd_rsp_virt->smt_mib_get.smt_connection_policy;
707 bp->stats.smt_t_notify = bp->cmd_rsp_virt->smt_mib_get.smt_t_notify;
708 bp->stats.smt_stat_rpt_policy = bp->cmd_rsp_virt->smt_mib_get.smt_stat_rpt_policy;
709 bp->stats.smt_trace_max_expiration = bp->cmd_rsp_virt->smt_mib_get.smt_trace_max_expiration;
710 bp->stats.smt_bypass_present = bp->cmd_rsp_virt->smt_mib_get.smt_bypass_present;
711 bp->stats.smt_ecm_state = bp->cmd_rsp_virt->smt_mib_get.smt_ecm_state;
712 bp->stats.smt_cf_state = bp->cmd_rsp_virt->smt_mib_get.smt_cf_state;
713 bp->stats.smt_remote_disconnect_flag = bp->cmd_rsp_virt->smt_mib_get.smt_remote_disconnect_flag;
714 bp->stats.smt_station_status = bp->cmd_rsp_virt->smt_mib_get.smt_station_status;
715 bp->stats.smt_peer_wrap_flag = bp->cmd_rsp_virt->smt_mib_get.smt_peer_wrap_flag;
716 bp->stats.smt_time_stamp = bp->cmd_rsp_virt->smt_mib_get.smt_msg_time_stamp.ls;
717 bp->stats.smt_transition_time_stamp = bp->cmd_rsp_virt->smt_mib_get.smt_transition_time_stamp.ls;
718 bp->stats.mac_frame_status_functions = bp->cmd_rsp_virt->smt_mib_get.mac_frame_status_functions;
719 bp->stats.mac_t_max_capability = bp->cmd_rsp_virt->smt_mib_get.mac_t_max_capability;
720 bp->stats.mac_tvx_capability = bp->cmd_rsp_virt->smt_mib_get.mac_tvx_capability;
721 bp->stats.mac_available_paths = bp->cmd_rsp_virt->smt_mib_get.mac_available_paths;
722 bp->stats.mac_current_path = bp->cmd_rsp_virt->smt_mib_get.mac_current_path;
723 memcpy(bp->stats.mac_upstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_upstream_nbr, FDDI_K_ALEN);
724 memcpy(bp->stats.mac_downstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_downstream_nbr, FDDI_K_ALEN);
725 memcpy(bp->stats.mac_old_upstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_old_upstream_nbr, FDDI_K_ALEN);
726 memcpy(bp->stats.mac_old_downstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_old_downstream_nbr, FDDI_K_ALEN);
727 bp->stats.mac_dup_address_test = bp->cmd_rsp_virt->smt_mib_get.mac_dup_address_test;
728 bp->stats.mac_requested_paths = bp->cmd_rsp_virt->smt_mib_get.mac_requested_paths;
729 bp->stats.mac_downstream_port_type = bp->cmd_rsp_virt->smt_mib_get.mac_downstream_port_type;
730 memcpy(bp->stats.mac_smt_address, &bp->cmd_rsp_virt->smt_mib_get.mac_smt_address, FDDI_K_ALEN);
731 bp->stats.mac_t_req = bp->cmd_rsp_virt->smt_mib_get.mac_t_req;
732 bp->stats.mac_t_neg = bp->cmd_rsp_virt->smt_mib_get.mac_t_neg;
733 bp->stats.mac_t_max = bp->cmd_rsp_virt->smt_mib_get.mac_t_max;
734 bp->stats.mac_tvx_value = bp->cmd_rsp_virt->smt_mib_get.mac_tvx_value;
735 bp->stats.mac_frame_error_threshold = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_threshold;
736 bp->stats.mac_frame_error_ratio = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_ratio;
737 bp->stats.mac_rmt_state = bp->cmd_rsp_virt->smt_mib_get.mac_rmt_state;
738 bp->stats.mac_da_flag = bp->cmd_rsp_virt->smt_mib_get.mac_da_flag;
739 bp->stats.mac_una_da_flag = bp->cmd_rsp_virt->smt_mib_get.mac_unda_flag;
740 bp->stats.mac_frame_error_flag = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_flag;
741 bp->stats.mac_ma_unitdata_available = bp->cmd_rsp_virt->smt_mib_get.mac_ma_unitdata_available;
742 bp->stats.mac_hardware_present = bp->cmd_rsp_virt->smt_mib_get.mac_hardware_present;
743 bp->stats.mac_ma_unitdata_enable = bp->cmd_rsp_virt->smt_mib_get.mac_ma_unitdata_enable;
744 bp->stats.path_tvx_lower_bound = bp->cmd_rsp_virt->smt_mib_get.path_tvx_lower_bound;
745 bp->stats.path_t_max_lower_bound = bp->cmd_rsp_virt->smt_mib_get.path_t_max_lower_bound;
746 bp->stats.path_max_t_req = bp->cmd_rsp_virt->smt_mib_get.path_max_t_req;
747 memcpy(bp->stats.path_configuration, &bp->cmd_rsp_virt->smt_mib_get.path_configuration, sizeof(bp->cmd_rsp_virt->smt_mib_get.path_configuration));
748 bp->stats.port_my_type[0] = bp->cmd_rsp_virt->smt_mib_get.port_my_type[0];
749 bp->stats.port_my_type[1] = bp->cmd_rsp_virt->smt_mib_get.port_my_type[1];
750 bp->stats.port_neighbor_type[0] = bp->cmd_rsp_virt->smt_mib_get.port_neighbor_type[0];
751 bp->stats.port_neighbor_type[1] = bp->cmd_rsp_virt->smt_mib_get.port_neighbor_type[1];
752 bp->stats.port_connection_policies[0] = bp->cmd_rsp_virt->smt_mib_get.port_connection_policies[0];
753 bp->stats.port_connection_policies[1] = bp->cmd_rsp_virt->smt_mib_get.port_connection_policies[1];
754 bp->stats.port_mac_indicated[0] = bp->cmd_rsp_virt->smt_mib_get.port_mac_indicated[0];
755 bp->stats.port_mac_indicated[1] = bp->cmd_rsp_virt->smt_mib_get.port_mac_indicated[1];
756 bp->stats.port_current_path[0] = bp->cmd_rsp_virt->smt_mib_get.port_current_path[0];
757 bp->stats.port_current_path[1] = bp->cmd_rsp_virt->smt_mib_get.port_current_path[1];
758 memcpy(&bp->stats.port_requested_paths[0 * 3], &bp->cmd_rsp_virt->smt_mib_get.port_requested_paths[0], 3);
759 memcpy(&bp->stats.port_requested_paths[1 * 3], &bp->cmd_rsp_virt->smt_mib_get.port_requested_paths[1], 3);
760 bp->stats.port_mac_placement[0] = bp->cmd_rsp_virt->smt_mib_get.port_mac_placement[0];
761 bp->stats.port_mac_placement[1] = bp->cmd_rsp_virt->smt_mib_get.port_mac_placement[1];
762 bp->stats.port_available_paths[0] = bp->cmd_rsp_virt->smt_mib_get.port_available_paths[0];
763 bp->stats.port_available_paths[1] = bp->cmd_rsp_virt->smt_mib_get.port_available_paths[1];
764 bp->stats.port_pmd_class[0] = bp->cmd_rsp_virt->smt_mib_get.port_pmd_class[0];
765 bp->stats.port_pmd_class[1] = bp->cmd_rsp_virt->smt_mib_get.port_pmd_class[1];
766 bp->stats.port_connection_capabilities[0] = bp->cmd_rsp_virt->smt_mib_get.port_connection_capabilities[0];
767 bp->stats.port_connection_capabilities[1] = bp->cmd_rsp_virt->smt_mib_get.port_connection_capabilities[1];
768 bp->stats.port_bs_flag[0] = bp->cmd_rsp_virt->smt_mib_get.port_bs_flag[0];
769 bp->stats.port_bs_flag[1] = bp->cmd_rsp_virt->smt_mib_get.port_bs_flag[1];
770 bp->stats.port_ler_estimate[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_estimate[0];
771 bp->stats.port_ler_estimate[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_estimate[1];
772 bp->stats.port_ler_cutoff[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_cutoff[0];
773 bp->stats.port_ler_cutoff[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_cutoff[1];
774 bp->stats.port_ler_alarm[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_alarm[0];
775 bp->stats.port_ler_alarm[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_alarm[1];
776 bp->stats.port_connect_state[0] = bp->cmd_rsp_virt->smt_mib_get.port_connect_state[0];
777 bp->stats.port_connect_state[1] = bp->cmd_rsp_virt->smt_mib_get.port_connect_state[1];
778 bp->stats.port_pcm_state[0] = bp->cmd_rsp_virt->smt_mib_get.port_pcm_state[0];
779 bp->stats.port_pcm_state[1] = bp->cmd_rsp_virt->smt_mib_get.port_pcm_state[1];
780 bp->stats.port_pc_withhold[0] = bp->cmd_rsp_virt->smt_mib_get.port_pc_withhold[0];
781 bp->stats.port_pc_withhold[1] = bp->cmd_rsp_virt->smt_mib_get.port_pc_withhold[1];
782 bp->stats.port_ler_flag[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_flag[0];
783 bp->stats.port_ler_flag[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_flag[1];
784 bp->stats.port_hardware_present[0] = bp->cmd_rsp_virt->smt_mib_get.port_hardware_present[0];
785 bp->stats.port_hardware_present[1] = bp->cmd_rsp_virt->smt_mib_get.port_hardware_present[1];
786
787
788
789
790 bp->stats.mac_frame_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.frame_cnt.ls;
791 bp->stats.mac_copied_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.copied_cnt.ls;
792 bp->stats.mac_transmit_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.transmit_cnt.ls;
793 bp->stats.mac_error_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.error_cnt.ls;
794 bp->stats.mac_lost_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.lost_cnt.ls;
795 bp->stats.port_lct_fail_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.lct_rejects[0].ls;
796 bp->stats.port_lct_fail_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.lct_rejects[1].ls;
797 bp->stats.port_lem_reject_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.lem_rejects[0].ls;
798 bp->stats.port_lem_reject_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.lem_rejects[1].ls;
799 bp->stats.port_lem_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.link_errors[0].ls;
800 bp->stats.port_lem_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.link_errors[1].ls;
801
802#endif
803 return ((struct net_device_stats *) &bp->os.MacStat);
804}
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844static void skfp_ctl_set_multicast_list(struct net_device *dev)
845{
846 struct s_smc *smc = netdev_priv(dev);
847 skfddi_priv *bp = &smc->os;
848 unsigned long Flags;
849
850 spin_lock_irqsave(&bp->DriverLock, Flags);
851 skfp_ctl_set_multicast_list_wo_lock(dev);
852 spin_unlock_irqrestore(&bp->DriverLock, Flags);
853 return;
854}
855
856
857
858static void skfp_ctl_set_multicast_list_wo_lock(struct net_device *dev)
859{
860 struct s_smc *smc = netdev_priv(dev);
861 struct dev_mc_list *dmi;
862 int i;
863
864
865 if (dev->flags & IFF_PROMISC) {
866 mac_drv_rx_mode(smc, RX_ENABLE_PROMISC);
867 pr_debug(KERN_INFO "PROMISCUOUS MODE ENABLED\n");
868 }
869
870 else {
871 mac_drv_rx_mode(smc, RX_DISABLE_PROMISC);
872 pr_debug(KERN_INFO "PROMISCUOUS MODE DISABLED\n");
873
874
875 mac_clear_multicast(smc);
876 mac_drv_rx_mode(smc, RX_DISABLE_ALLMULTI);
877
878 if (dev->flags & IFF_ALLMULTI) {
879 mac_drv_rx_mode(smc, RX_ENABLE_ALLMULTI);
880 pr_debug(KERN_INFO "ENABLE ALL MC ADDRESSES\n");
881 } else if (dev->mc_count > 0) {
882 if (dev->mc_count <= FPMAX_MULTICAST) {
883
884
885
886 dmi = dev->mc_list;
887
888 for (i = 0; i < dev->mc_count; i++) {
889 mac_add_multicast(smc,
890 (struct fddi_addr *)dmi->dmi_addr,
891 1);
892
893 pr_debug(KERN_INFO "ENABLE MC ADDRESS:");
894 pr_debug(" %02x %02x %02x ",
895 dmi->dmi_addr[0],
896 dmi->dmi_addr[1],
897 dmi->dmi_addr[2]);
898 pr_debug("%02x %02x %02x\n",
899 dmi->dmi_addr[3],
900 dmi->dmi_addr[4],
901 dmi->dmi_addr[5]);
902 dmi = dmi->next;
903 }
904
905 } else {
906
907 mac_drv_rx_mode(smc, RX_ENABLE_ALLMULTI);
908 pr_debug(KERN_INFO "ENABLE ALL MC ADDRESSES\n");
909 }
910 } else {
911
912 pr_debug(KERN_INFO "DISABLE ALL MC ADDRESSES\n");
913 }
914
915
916 mac_update_multicast(smc);
917 }
918 return;
919}
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941static int skfp_ctl_set_mac_address(struct net_device *dev, void *addr)
942{
943 struct s_smc *smc = netdev_priv(dev);
944 struct sockaddr *p_sockaddr = (struct sockaddr *) addr;
945 skfddi_priv *bp = &smc->os;
946 unsigned long Flags;
947
948
949 memcpy(dev->dev_addr, p_sockaddr->sa_data, FDDI_K_ALEN);
950 spin_lock_irqsave(&bp->DriverLock, Flags);
951 ResetAdapter(smc);
952 spin_unlock_irqrestore(&bp->DriverLock, Flags);
953
954 return (0);
955}
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981static int skfp_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
982{
983 struct s_smc *smc = netdev_priv(dev);
984 skfddi_priv *lp = &smc->os;
985 struct s_skfp_ioctl ioc;
986 int status = 0;
987
988 if (copy_from_user(&ioc, rq->ifr_data, sizeof(struct s_skfp_ioctl)))
989 return -EFAULT;
990
991 switch (ioc.cmd) {
992 case SKFP_GET_STATS:
993 ioc.len = sizeof(lp->MacStat);
994 status = copy_to_user(ioc.data, skfp_ctl_get_stats(dev), ioc.len)
995 ? -EFAULT : 0;
996 break;
997 case SKFP_CLR_STATS:
998 if (!capable(CAP_NET_ADMIN)) {
999 status = -EPERM;
1000 } else {
1001 memset(&lp->MacStat, 0, sizeof(lp->MacStat));
1002 }
1003 break;
1004 default:
1005 printk("ioctl for %s: unknow cmd: %04x\n", dev->name, ioc.cmd);
1006 status = -EOPNOTSUPP;
1007
1008 }
1009
1010 return status;
1011}
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
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1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061static netdev_tx_t skfp_send_pkt(struct sk_buff *skb,
1062 struct net_device *dev)
1063{
1064 struct s_smc *smc = netdev_priv(dev);
1065 skfddi_priv *bp = &smc->os;
1066
1067 pr_debug(KERN_INFO "skfp_send_pkt\n");
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078 if (!(skb->len >= FDDI_K_LLC_ZLEN && skb->len <= FDDI_K_LLC_LEN)) {
1079 bp->MacStat.gen.tx_errors++;
1080
1081 netif_start_queue(dev);
1082 dev_kfree_skb(skb);
1083 return NETDEV_TX_OK;
1084 }
1085 if (bp->QueueSkb == 0) {
1086
1087 netif_stop_queue(dev);
1088 return NETDEV_TX_BUSY;
1089 }
1090 bp->QueueSkb--;
1091 skb_queue_tail(&bp->SendSkbQueue, skb);
1092 send_queued_packets(netdev_priv(dev));
1093 if (bp->QueueSkb == 0) {
1094 netif_stop_queue(dev);
1095 }
1096 dev->trans_start = jiffies;
1097 return NETDEV_TX_OK;
1098
1099}
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125static void send_queued_packets(struct s_smc *smc)
1126{
1127 skfddi_priv *bp = &smc->os;
1128 struct sk_buff *skb;
1129 unsigned char fc;
1130 int queue;
1131 struct s_smt_fp_txd *txd;
1132 dma_addr_t dma_address;
1133 unsigned long Flags;
1134
1135 int frame_status;
1136
1137 pr_debug(KERN_INFO "send queued packets\n");
1138 for (;;) {
1139
1140 skb = skb_dequeue(&bp->SendSkbQueue);
1141
1142 if (!skb) {
1143 pr_debug(KERN_INFO "queue empty\n");
1144 return;
1145 }
1146
1147 spin_lock_irqsave(&bp->DriverLock, Flags);
1148 fc = skb->data[0];
1149 queue = (fc & FC_SYNC_BIT) ? QUEUE_S : QUEUE_A0;
1150#ifdef ESS
1151
1152
1153 if ((fc & ~(FC_SYNC_BIT | FC_LLC_PRIOR)) == FC_ASYNC_LLC) {
1154
1155 if (!smc->ess.sync_bw_available)
1156 fc &= ~FC_SYNC_BIT;
1157
1158 else {
1159
1160 if (smc->mib.fddiESSSynchTxMode) {
1161
1162 fc |= FC_SYNC_BIT;
1163 }
1164 }
1165 }
1166#endif
1167 frame_status = hwm_tx_init(smc, fc, 1, skb->len, queue);
1168
1169 if ((frame_status & (LOC_TX | LAN_TX)) == 0) {
1170
1171
1172 if ((frame_status & RING_DOWN) != 0) {
1173
1174 pr_debug("Tx attempt while ring down.\n");
1175 } else if ((frame_status & OUT_OF_TXD) != 0) {
1176 pr_debug("%s: out of TXDs.\n", bp->dev->name);
1177 } else {
1178 pr_debug("%s: out of transmit resources",
1179 bp->dev->name);
1180 }
1181
1182
1183
1184 skb_queue_head(&bp->SendSkbQueue, skb);
1185 spin_unlock_irqrestore(&bp->DriverLock, Flags);
1186 return;
1187
1188 }
1189
1190 bp->QueueSkb++;
1191
1192
1193 CheckSourceAddress(skb->data, smc->hw.fddi_canon_addr.a);
1194
1195 txd = (struct s_smt_fp_txd *) HWM_GET_CURR_TXD(smc, queue);
1196
1197 dma_address = pci_map_single(&bp->pdev, skb->data,
1198 skb->len, PCI_DMA_TODEVICE);
1199 if (frame_status & LAN_TX) {
1200 txd->txd_os.skb = skb;
1201 txd->txd_os.dma_addr = dma_address;
1202 }
1203 hwm_tx_frag(smc, skb->data, dma_address, skb->len,
1204 frame_status | FIRST_FRAG | LAST_FRAG | EN_IRQ_EOF);
1205
1206 if (!(frame_status & LAN_TX)) {
1207 pci_unmap_single(&bp->pdev, dma_address,
1208 skb->len, PCI_DMA_TODEVICE);
1209 dev_kfree_skb_irq(skb);
1210 }
1211 spin_unlock_irqrestore(&bp->DriverLock, Flags);
1212 }
1213
1214 return;
1215
1216}
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226static void CheckSourceAddress(unsigned char *frame, unsigned char *hw_addr)
1227{
1228 unsigned char SRBit;
1229
1230 if ((((unsigned long) frame[1 + 6]) & ~0x01) != 0)
1231
1232 return;
1233 if ((unsigned short) frame[1 + 10] != 0)
1234 return;
1235 SRBit = frame[1 + 6] & 0x01;
1236 memcpy(&frame[1 + 6], hw_addr, 6);
1237 frame[8] |= SRBit;
1238}
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252static void ResetAdapter(struct s_smc *smc)
1253{
1254
1255 pr_debug(KERN_INFO "[fddi: ResetAdapter]\n");
1256
1257
1258
1259 card_stop(smc);
1260
1261
1262 mac_drv_clear_tx_queue(smc);
1263 mac_drv_clear_rx_queue(smc);
1264
1265
1266
1267 smt_reset_defaults(smc, 1);
1268
1269 init_smt(smc, (smc->os.dev)->dev_addr);
1270
1271 smt_online(smc, 1);
1272 STI_FBI();
1273
1274
1275 skfp_ctl_set_multicast_list_wo_lock(smc->os.dev);
1276}
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297void llc_restart_tx(struct s_smc *smc)
1298{
1299 skfddi_priv *bp = &smc->os;
1300
1301 pr_debug(KERN_INFO "[llc_restart_tx]\n");
1302
1303
1304 spin_unlock(&bp->DriverLock);
1305 send_queued_packets(smc);
1306 spin_lock(&bp->DriverLock);
1307 netif_start_queue(bp->dev);
1308
1309}
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327void *mac_drv_get_space(struct s_smc *smc, unsigned int size)
1328{
1329 void *virt;
1330
1331 pr_debug(KERN_INFO "mac_drv_get_space (%d bytes), ", size);
1332 virt = (void *) (smc->os.SharedMemAddr + smc->os.SharedMemHeap);
1333
1334 if ((smc->os.SharedMemHeap + size) > smc->os.SharedMemSize) {
1335 printk("Unexpected SMT memory size requested: %d\n", size);
1336 return (NULL);
1337 }
1338 smc->os.SharedMemHeap += size;
1339
1340 pr_debug(KERN_INFO "mac_drv_get_space end\n");
1341 pr_debug(KERN_INFO "virt addr: %lx\n", (ulong) virt);
1342 pr_debug(KERN_INFO "bus addr: %lx\n", (ulong)
1343 (smc->os.SharedMemDMA +
1344 ((char *) virt - (char *)smc->os.SharedMemAddr)));
1345 return (virt);
1346}
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367void *mac_drv_get_desc_mem(struct s_smc *smc, unsigned int size)
1368{
1369
1370 char *virt;
1371
1372 pr_debug(KERN_INFO "mac_drv_get_desc_mem\n");
1373
1374
1375
1376 virt = mac_drv_get_space(smc, size);
1377
1378 size = (u_int) (16 - (((unsigned long) virt) & 15UL));
1379 size = size % 16;
1380
1381 pr_debug("Allocate %u bytes alignment gap ", size);
1382 pr_debug("for descriptor memory.\n");
1383
1384 if (!mac_drv_get_space(smc, size)) {
1385 printk("fddi: Unable to align descriptor memory.\n");
1386 return (NULL);
1387 }
1388 return (virt + size);
1389}
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405unsigned long mac_drv_virt2phys(struct s_smc *smc, void *virt)
1406{
1407 return (smc->os.SharedMemDMA +
1408 ((char *) virt - (char *)smc->os.SharedMemAddr));
1409}
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440u_long dma_master(struct s_smc * smc, void *virt, int len, int flag)
1441{
1442 return (smc->os.SharedMemDMA +
1443 ((char *) virt - (char *)smc->os.SharedMemAddr));
1444}
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468void dma_complete(struct s_smc *smc, volatile union s_fp_descr *descr, int flag)
1469{
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482 if (flag & DMA_WR) {
1483 skfddi_priv *bp = &smc->os;
1484 volatile struct s_smt_fp_rxd *r = &descr->r;
1485
1486
1487 if (r->rxd_os.skb && r->rxd_os.dma_addr) {
1488 int MaxFrameSize = bp->MaxFrameSize;
1489
1490 pci_unmap_single(&bp->pdev, r->rxd_os.dma_addr,
1491 MaxFrameSize, PCI_DMA_FROMDEVICE);
1492 r->rxd_os.dma_addr = 0;
1493 }
1494 }
1495}
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512void mac_drv_tx_complete(struct s_smc *smc, volatile struct s_smt_fp_txd *txd)
1513{
1514 struct sk_buff *skb;
1515
1516 pr_debug(KERN_INFO "entering mac_drv_tx_complete\n");
1517
1518
1519 if (!(skb = txd->txd_os.skb)) {
1520 pr_debug("TXD with no skb assigned.\n");
1521 return;
1522 }
1523 txd->txd_os.skb = NULL;
1524
1525
1526 pci_unmap_single(&smc->os.pdev, txd->txd_os.dma_addr,
1527 skb->len, PCI_DMA_TODEVICE);
1528 txd->txd_os.dma_addr = 0;
1529
1530 smc->os.MacStat.gen.tx_packets++;
1531 smc->os.MacStat.gen.tx_bytes+=skb->len;
1532
1533
1534 dev_kfree_skb_irq(skb);
1535
1536 pr_debug(KERN_INFO "leaving mac_drv_tx_complete\n");
1537}
1538
1539
1540
1541
1542
1543
1544
1545#ifdef DUMPPACKETS
1546void dump_data(unsigned char *Data, int length)
1547{
1548 int i, j;
1549 unsigned char s[255], sh[10];
1550 if (length > 64) {
1551 length = 64;
1552 }
1553 printk(KERN_INFO "---Packet start---\n");
1554 for (i = 0, j = 0; i < length / 8; i++, j += 8)
1555 printk(KERN_INFO "%02x %02x %02x %02x %02x %02x %02x %02x\n",
1556 Data[j + 0], Data[j + 1], Data[j + 2], Data[j + 3],
1557 Data[j + 4], Data[j + 5], Data[j + 6], Data[j + 7]);
1558 strcpy(s, "");
1559 for (i = 0; i < length % 8; i++) {
1560 sprintf(sh, "%02x ", Data[j + i]);
1561 strcat(s, sh);
1562 }
1563 printk(KERN_INFO "%s\n", s);
1564 printk(KERN_INFO "------------------\n");
1565}
1566#else
1567#define dump_data(data,len)
1568#endif
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594void mac_drv_rx_complete(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
1595 int frag_count, int len)
1596{
1597 skfddi_priv *bp = &smc->os;
1598 struct sk_buff *skb;
1599 unsigned char *virt, *cp;
1600 unsigned short ri;
1601 u_int RifLength;
1602
1603 pr_debug(KERN_INFO "entering mac_drv_rx_complete (len=%d)\n", len);
1604 if (frag_count != 1) {
1605
1606 printk("fddi: Multi-fragment receive!\n");
1607 goto RequeueRxd;
1608
1609 }
1610 skb = rxd->rxd_os.skb;
1611 if (!skb) {
1612 pr_debug(KERN_INFO "No skb in rxd\n");
1613 smc->os.MacStat.gen.rx_errors++;
1614 goto RequeueRxd;
1615 }
1616 virt = skb->data;
1617
1618
1619
1620 dump_data(skb->data, len);
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637 if ((virt[1 + 6] & FDDI_RII) == 0)
1638 RifLength = 0;
1639 else {
1640 int n;
1641
1642 pr_debug(KERN_INFO "RIF found\n");
1643
1644 cp = virt + FDDI_MAC_HDR_LEN;
1645
1646 ri = ntohs(*((__be16 *) cp));
1647 RifLength = ri & FDDI_RCF_LEN_MASK;
1648 if (len < (int) (FDDI_MAC_HDR_LEN + RifLength)) {
1649 printk("fddi: Invalid RIF.\n");
1650 goto RequeueRxd;
1651
1652 }
1653 virt[1 + 6] &= ~FDDI_RII;
1654
1655
1656 virt = cp + RifLength;
1657 for (n = FDDI_MAC_HDR_LEN; n; n--)
1658 *--virt = *--cp;
1659
1660 skb_pull(skb, RifLength);
1661 len -= RifLength;
1662 RifLength = 0;
1663 }
1664
1665
1666 smc->os.MacStat.gen.rx_packets++;
1667
1668 smc->os.MacStat.gen.rx_bytes+=len;
1669
1670
1671 if (virt[1] & 0x01) {
1672
1673 smc->os.MacStat.gen.multicast++;
1674 }
1675
1676
1677 rxd->rxd_os.skb = NULL;
1678 skb_trim(skb, len);
1679 skb->protocol = fddi_type_trans(skb, bp->dev);
1680
1681 netif_rx(skb);
1682
1683 HWM_RX_CHECK(smc, RX_LOW_WATERMARK);
1684 return;
1685
1686 RequeueRxd:
1687 pr_debug(KERN_INFO "Rx: re-queue RXD.\n");
1688 mac_drv_requeue_rxd(smc, rxd, frag_count);
1689 smc->os.MacStat.gen.rx_errors++;
1690
1691
1692}
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713void mac_drv_requeue_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
1714 int frag_count)
1715{
1716 volatile struct s_smt_fp_rxd *next_rxd;
1717 volatile struct s_smt_fp_rxd *src_rxd;
1718 struct sk_buff *skb;
1719 int MaxFrameSize;
1720 unsigned char *v_addr;
1721 dma_addr_t b_addr;
1722
1723 if (frag_count != 1)
1724
1725 printk("fddi: Multi-fragment requeue!\n");
1726
1727 MaxFrameSize = smc->os.MaxFrameSize;
1728 src_rxd = rxd;
1729 for (; frag_count > 0; frag_count--) {
1730 next_rxd = src_rxd->rxd_next;
1731 rxd = HWM_GET_CURR_RXD(smc);
1732
1733 skb = src_rxd->rxd_os.skb;
1734 if (skb == NULL) {
1735
1736 pr_debug("Requeue with no skb in rxd!\n");
1737 skb = alloc_skb(MaxFrameSize + 3, GFP_ATOMIC);
1738 if (skb) {
1739
1740 rxd->rxd_os.skb = skb;
1741 skb_reserve(skb, 3);
1742 skb_put(skb, MaxFrameSize);
1743 v_addr = skb->data;
1744 b_addr = pci_map_single(&smc->os.pdev,
1745 v_addr,
1746 MaxFrameSize,
1747 PCI_DMA_FROMDEVICE);
1748 rxd->rxd_os.dma_addr = b_addr;
1749 } else {
1750
1751 pr_debug("Queueing invalid buffer!\n");
1752 rxd->rxd_os.skb = NULL;
1753 v_addr = smc->os.LocalRxBuffer;
1754 b_addr = smc->os.LocalRxBufferDMA;
1755 }
1756 } else {
1757
1758 rxd->rxd_os.skb = skb;
1759 v_addr = skb->data;
1760 b_addr = pci_map_single(&smc->os.pdev,
1761 v_addr,
1762 MaxFrameSize,
1763 PCI_DMA_FROMDEVICE);
1764 rxd->rxd_os.dma_addr = b_addr;
1765 }
1766 hwm_rx_frag(smc, v_addr, b_addr, MaxFrameSize,
1767 FIRST_FRAG | LAST_FRAG);
1768
1769 src_rxd = next_rxd;
1770 }
1771}
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790void mac_drv_fill_rxd(struct s_smc *smc)
1791{
1792 int MaxFrameSize;
1793 unsigned char *v_addr;
1794 unsigned long b_addr;
1795 struct sk_buff *skb;
1796 volatile struct s_smt_fp_rxd *rxd;
1797
1798 pr_debug(KERN_INFO "entering mac_drv_fill_rxd\n");
1799
1800
1801
1802
1803 MaxFrameSize = smc->os.MaxFrameSize;
1804
1805 while (HWM_GET_RX_FREE(smc) > 0) {
1806 pr_debug(KERN_INFO ".\n");
1807
1808 rxd = HWM_GET_CURR_RXD(smc);
1809 skb = alloc_skb(MaxFrameSize + 3, GFP_ATOMIC);
1810 if (skb) {
1811
1812 skb_reserve(skb, 3);
1813 skb_put(skb, MaxFrameSize);
1814 v_addr = skb->data;
1815 b_addr = pci_map_single(&smc->os.pdev,
1816 v_addr,
1817 MaxFrameSize,
1818 PCI_DMA_FROMDEVICE);
1819 rxd->rxd_os.dma_addr = b_addr;
1820 } else {
1821
1822
1823
1824
1825
1826 pr_debug("Queueing invalid buffer!\n");
1827 v_addr = smc->os.LocalRxBuffer;
1828 b_addr = smc->os.LocalRxBufferDMA;
1829 }
1830
1831 rxd->rxd_os.skb = skb;
1832
1833
1834 hwm_rx_frag(smc, v_addr, b_addr, MaxFrameSize,
1835 FIRST_FRAG | LAST_FRAG);
1836 }
1837 pr_debug(KERN_INFO "leaving mac_drv_fill_rxd\n");
1838}
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857void mac_drv_clear_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
1858 int frag_count)
1859{
1860
1861 struct sk_buff *skb;
1862
1863 pr_debug("entering mac_drv_clear_rxd\n");
1864
1865 if (frag_count != 1)
1866
1867 printk("fddi: Multi-fragment clear!\n");
1868
1869 for (; frag_count > 0; frag_count--) {
1870 skb = rxd->rxd_os.skb;
1871 if (skb != NULL) {
1872 skfddi_priv *bp = &smc->os;
1873 int MaxFrameSize = bp->MaxFrameSize;
1874
1875 pci_unmap_single(&bp->pdev, rxd->rxd_os.dma_addr,
1876 MaxFrameSize, PCI_DMA_FROMDEVICE);
1877
1878 dev_kfree_skb(skb);
1879 rxd->rxd_os.skb = NULL;
1880 }
1881 rxd = rxd->rxd_next;
1882
1883 }
1884}
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914int mac_drv_rx_init(struct s_smc *smc, int len, int fc,
1915 char *look_ahead, int la_len)
1916{
1917 struct sk_buff *skb;
1918
1919 pr_debug("entering mac_drv_rx_init(len=%d)\n", len);
1920
1921
1922
1923 if (len != la_len || len < FDDI_MAC_HDR_LEN || !look_ahead) {
1924 pr_debug("fddi: Discard invalid local SMT frame\n");
1925 pr_debug(" len=%d, la_len=%d, (ULONG) look_ahead=%08lXh.\n",
1926 len, la_len, (unsigned long) look_ahead);
1927 return (0);
1928 }
1929 skb = alloc_skb(len + 3, GFP_ATOMIC);
1930 if (!skb) {
1931 pr_debug("fddi: Local SMT: skb memory exhausted.\n");
1932 return (0);
1933 }
1934 skb_reserve(skb, 3);
1935 skb_put(skb, len);
1936 skb_copy_to_linear_data(skb, look_ahead, len);
1937
1938
1939 skb->protocol = fddi_type_trans(skb, smc->os.dev);
1940 netif_rx(skb);
1941
1942 return (0);
1943}
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961void smt_timer_poll(struct s_smc *smc)
1962{
1963}
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979void ring_status_indication(struct s_smc *smc, u_long status)
1980{
1981 pr_debug("ring_status_indication( ");
1982 if (status & RS_RES15)
1983 pr_debug("RS_RES15 ");
1984 if (status & RS_HARDERROR)
1985 pr_debug("RS_HARDERROR ");
1986 if (status & RS_SOFTERROR)
1987 pr_debug("RS_SOFTERROR ");
1988 if (status & RS_BEACON)
1989 pr_debug("RS_BEACON ");
1990 if (status & RS_PATHTEST)
1991 pr_debug("RS_PATHTEST ");
1992 if (status & RS_SELFTEST)
1993 pr_debug("RS_SELFTEST ");
1994 if (status & RS_RES9)
1995 pr_debug("RS_RES9 ");
1996 if (status & RS_DISCONNECT)
1997 pr_debug("RS_DISCONNECT ");
1998 if (status & RS_RES7)
1999 pr_debug("RS_RES7 ");
2000 if (status & RS_DUPADDR)
2001 pr_debug("RS_DUPADDR ");
2002 if (status & RS_NORINGOP)
2003 pr_debug("RS_NORINGOP ");
2004 if (status & RS_VERSION)
2005 pr_debug("RS_VERSION ");
2006 if (status & RS_STUCKBYPASSS)
2007 pr_debug("RS_STUCKBYPASSS ");
2008 if (status & RS_EVENT)
2009 pr_debug("RS_EVENT ");
2010 if (status & RS_RINGOPCHANGE)
2011 pr_debug("RS_RINGOPCHANGE ");
2012 if (status & RS_RES0)
2013 pr_debug("RS_RES0 ");
2014 pr_debug("]\n");
2015}
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033unsigned long smt_get_time(void)
2034{
2035 return jiffies;
2036}
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053void smt_stat_counter(struct s_smc *smc, int stat)
2054{
2055
2056
2057 pr_debug(KERN_INFO "smt_stat_counter\n");
2058 switch (stat) {
2059 case 0:
2060 pr_debug(KERN_INFO "Ring operational change.\n");
2061 break;
2062 case 1:
2063 pr_debug(KERN_INFO "Receive fifo overflow.\n");
2064 smc->os.MacStat.gen.rx_errors++;
2065 break;
2066 default:
2067 pr_debug(KERN_INFO "Unknown status (%d).\n", stat);
2068 break;
2069 }
2070}
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089void cfm_state_change(struct s_smc *smc, int c_state)
2090{
2091#ifdef DRIVERDEBUG
2092 char *s;
2093
2094 switch (c_state) {
2095 case SC0_ISOLATED:
2096 s = "SC0_ISOLATED";
2097 break;
2098 case SC1_WRAP_A:
2099 s = "SC1_WRAP_A";
2100 break;
2101 case SC2_WRAP_B:
2102 s = "SC2_WRAP_B";
2103 break;
2104 case SC4_THRU_A:
2105 s = "SC4_THRU_A";
2106 break;
2107 case SC5_THRU_B:
2108 s = "SC5_THRU_B";
2109 break;
2110 case SC7_WRAP_S:
2111 s = "SC7_WRAP_S";
2112 break;
2113 case SC9_C_WRAP_A:
2114 s = "SC9_C_WRAP_A";
2115 break;
2116 case SC10_C_WRAP_B:
2117 s = "SC10_C_WRAP_B";
2118 break;
2119 case SC11_C_WRAP_S:
2120 s = "SC11_C_WRAP_S";
2121 break;
2122 default:
2123 pr_debug(KERN_INFO "cfm_state_change: unknown %d\n", c_state);
2124 return;
2125 }
2126 pr_debug(KERN_INFO "cfm_state_change: %s\n", s);
2127#endif
2128}
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147void ecm_state_change(struct s_smc *smc, int e_state)
2148{
2149#ifdef DRIVERDEBUG
2150 char *s;
2151
2152 switch (e_state) {
2153 case EC0_OUT:
2154 s = "EC0_OUT";
2155 break;
2156 case EC1_IN:
2157 s = "EC1_IN";
2158 break;
2159 case EC2_TRACE:
2160 s = "EC2_TRACE";
2161 break;
2162 case EC3_LEAVE:
2163 s = "EC3_LEAVE";
2164 break;
2165 case EC4_PATH_TEST:
2166 s = "EC4_PATH_TEST";
2167 break;
2168 case EC5_INSERT:
2169 s = "EC5_INSERT";
2170 break;
2171 case EC6_CHECK:
2172 s = "EC6_CHECK";
2173 break;
2174 case EC7_DEINSERT:
2175 s = "EC7_DEINSERT";
2176 break;
2177 default:
2178 s = "unknown";
2179 break;
2180 }
2181 pr_debug(KERN_INFO "ecm_state_change: %s\n", s);
2182#endif
2183}
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202void rmt_state_change(struct s_smc *smc, int r_state)
2203{
2204#ifdef DRIVERDEBUG
2205 char *s;
2206
2207 switch (r_state) {
2208 case RM0_ISOLATED:
2209 s = "RM0_ISOLATED";
2210 break;
2211 case RM1_NON_OP:
2212 s = "RM1_NON_OP - not operational";
2213 break;
2214 case RM2_RING_OP:
2215 s = "RM2_RING_OP - ring operational";
2216 break;
2217 case RM3_DETECT:
2218 s = "RM3_DETECT - detect dupl addresses";
2219 break;
2220 case RM4_NON_OP_DUP:
2221 s = "RM4_NON_OP_DUP - dupl. addr detected";
2222 break;
2223 case RM5_RING_OP_DUP:
2224 s = "RM5_RING_OP_DUP - ring oper. with dupl. addr";
2225 break;
2226 case RM6_DIRECTED:
2227 s = "RM6_DIRECTED - sending directed beacons";
2228 break;
2229 case RM7_TRACE:
2230 s = "RM7_TRACE - trace initiated";
2231 break;
2232 default:
2233 s = "unknown";
2234 break;
2235 }
2236 pr_debug(KERN_INFO "[rmt_state_change: %s]\n", s);
2237#endif
2238}
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254void drv_reset_indication(struct s_smc *smc)
2255{
2256 pr_debug(KERN_INFO "entering drv_reset_indication\n");
2257
2258 smc->os.ResetRequested = TRUE;
2259
2260}
2261
2262static struct pci_driver skfddi_pci_driver = {
2263 .name = "skfddi",
2264 .id_table = skfddi_pci_tbl,
2265 .probe = skfp_init_one,
2266 .remove = __devexit_p(skfp_remove_one),
2267};
2268
2269static int __init skfd_init(void)
2270{
2271 return pci_register_driver(&skfddi_pci_driver);
2272}
2273
2274static void __exit skfd_exit(void)
2275{
2276 pci_unregister_driver(&skfddi_pci_driver);
2277}
2278
2279module_init(skfd_init);
2280module_exit(skfd_exit);
2281