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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/interrupt.h>
82#include <linux/pci.h>
83#include <linux/netdevice.h>
84#include <linux/fddidevice.h>
85#include <linux/skbuff.h>
86#include <linux/bitops.h>
87#include <linux/gfp.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 const 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_rx_mode = 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("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
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323
324static void 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}
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381static int skfp_driver_init(struct net_device *dev)
382{
383 struct s_smc *smc = netdev_priv(dev);
384 skfddi_priv *bp = &smc->os;
385 int err = -EIO;
386
387 pr_debug("entering skfp_driver_init\n");
388
389
390 bp->base_addr = dev->base_addr;
391
392
393 smc->hw.irq = dev->irq;
394
395 spin_lock_init(&bp->DriverLock);
396
397
398 bp->LocalRxBuffer = pci_alloc_consistent(&bp->pdev, MAX_FRAME_SIZE, &bp->LocalRxBufferDMA);
399 if (!bp->LocalRxBuffer) {
400 printk("could not allocate mem for ");
401 printk("LocalRxBuffer: %d byte\n", MAX_FRAME_SIZE);
402 goto fail;
403 }
404
405
406 bp->SharedMemSize = mac_drv_check_space();
407 pr_debug("Memory for HWM: %ld\n", bp->SharedMemSize);
408 if (bp->SharedMemSize > 0) {
409 bp->SharedMemSize += 16;
410
411 bp->SharedMemAddr = pci_alloc_consistent(&bp->pdev,
412 bp->SharedMemSize,
413 &bp->SharedMemDMA);
414 if (!bp->SharedMemAddr) {
415 printk("could not allocate mem for ");
416 printk("hardware module: %ld byte\n",
417 bp->SharedMemSize);
418 goto fail;
419 }
420 bp->SharedMemHeap = 0;
421
422 } else {
423 bp->SharedMemAddr = NULL;
424 bp->SharedMemHeap = 0;
425 }
426
427 memset(bp->SharedMemAddr, 0, bp->SharedMemSize);
428
429 card_stop(smc);
430
431 pr_debug("mac_drv_init()..\n");
432 if (mac_drv_init(smc) != 0) {
433 pr_debug("mac_drv_init() failed\n");
434 goto fail;
435 }
436 read_address(smc, NULL);
437 pr_debug("HW-Addr: %pMF\n", smc->hw.fddi_canon_addr.a);
438 memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, ETH_ALEN);
439
440 smt_reset_defaults(smc, 0);
441
442 return 0;
443
444fail:
445 if (bp->SharedMemAddr) {
446 pci_free_consistent(&bp->pdev,
447 bp->SharedMemSize,
448 bp->SharedMemAddr,
449 bp->SharedMemDMA);
450 bp->SharedMemAddr = NULL;
451 }
452 if (bp->LocalRxBuffer) {
453 pci_free_consistent(&bp->pdev, MAX_FRAME_SIZE,
454 bp->LocalRxBuffer, bp->LocalRxBufferDMA);
455 bp->LocalRxBuffer = NULL;
456 }
457 return err;
458}
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482static int skfp_open(struct net_device *dev)
483{
484 struct s_smc *smc = netdev_priv(dev);
485 int err;
486
487 pr_debug("entering skfp_open\n");
488
489 err = request_irq(dev->irq, skfp_interrupt, IRQF_SHARED,
490 dev->name, dev);
491 if (err)
492 return err;
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504 read_address(smc, NULL);
505 memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, ETH_ALEN);
506
507 init_smt(smc, NULL);
508 smt_online(smc, 1);
509 STI_FBI();
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512 mac_clear_multicast(smc);
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515 mac_drv_rx_mode(smc, RX_DISABLE_PROMISC);
516
517 netif_start_queue(dev);
518 return 0;
519}
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549static int skfp_close(struct net_device *dev)
550{
551 struct s_smc *smc = netdev_priv(dev);
552 skfddi_priv *bp = &smc->os;
553
554 CLI_FBI();
555 smt_reset_defaults(smc, 1);
556 card_stop(smc);
557 mac_drv_clear_tx_queue(smc);
558 mac_drv_clear_rx_queue(smc);
559
560 netif_stop_queue(dev);
561
562 free_irq(dev->irq, dev);
563
564 skb_queue_purge(&bp->SendSkbQueue);
565 bp->QueueSkb = MAX_TX_QUEUE_LEN;
566
567 return 0;
568}
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606static irqreturn_t skfp_interrupt(int irq, void *dev_id)
607{
608 struct net_device *dev = dev_id;
609 struct s_smc *smc;
610 skfddi_priv *bp;
611
612 smc = netdev_priv(dev);
613 bp = &smc->os;
614
615
616 if (inpd(ADDR(B0_IMSK)) == 0) {
617
618 return IRQ_NONE;
619 }
620
621 if ((inpd(ISR_A) & smc->hw.is_imask) == 0) {
622
623 return IRQ_NONE;
624 }
625 CLI_FBI();
626 spin_lock(&bp->DriverLock);
627
628
629 fddi_isr(smc);
630
631 if (smc->os.ResetRequested) {
632 ResetAdapter(smc);
633 smc->os.ResetRequested = FALSE;
634 }
635 spin_unlock(&bp->DriverLock);
636 STI_FBI();
637
638 return IRQ_HANDLED;
639}
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673static struct net_device_stats *skfp_ctl_get_stats(struct net_device *dev)
674{
675 struct s_smc *bp = netdev_priv(dev);
676
677
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679 bp->os.MacStat.port_bs_flag[0] = 0x1234;
680 bp->os.MacStat.port_bs_flag[1] = 0x5678;
681
682#if 0
683
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686
687 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));
688 bp->stats.smt_op_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_op_version_id;
689 bp->stats.smt_hi_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_hi_version_id;
690 bp->stats.smt_lo_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_lo_version_id;
691 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));
692 bp->stats.smt_mib_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_mib_version_id;
693 bp->stats.smt_mac_cts = bp->cmd_rsp_virt->smt_mib_get.smt_mac_ct;
694 bp->stats.smt_non_master_cts = bp->cmd_rsp_virt->smt_mib_get.smt_non_master_ct;
695 bp->stats.smt_master_cts = bp->cmd_rsp_virt->smt_mib_get.smt_master_ct;
696 bp->stats.smt_available_paths = bp->cmd_rsp_virt->smt_mib_get.smt_available_paths;
697 bp->stats.smt_config_capabilities = bp->cmd_rsp_virt->smt_mib_get.smt_config_capabilities;
698 bp->stats.smt_config_policy = bp->cmd_rsp_virt->smt_mib_get.smt_config_policy;
699 bp->stats.smt_connection_policy = bp->cmd_rsp_virt->smt_mib_get.smt_connection_policy;
700 bp->stats.smt_t_notify = bp->cmd_rsp_virt->smt_mib_get.smt_t_notify;
701 bp->stats.smt_stat_rpt_policy = bp->cmd_rsp_virt->smt_mib_get.smt_stat_rpt_policy;
702 bp->stats.smt_trace_max_expiration = bp->cmd_rsp_virt->smt_mib_get.smt_trace_max_expiration;
703 bp->stats.smt_bypass_present = bp->cmd_rsp_virt->smt_mib_get.smt_bypass_present;
704 bp->stats.smt_ecm_state = bp->cmd_rsp_virt->smt_mib_get.smt_ecm_state;
705 bp->stats.smt_cf_state = bp->cmd_rsp_virt->smt_mib_get.smt_cf_state;
706 bp->stats.smt_remote_disconnect_flag = bp->cmd_rsp_virt->smt_mib_get.smt_remote_disconnect_flag;
707 bp->stats.smt_station_status = bp->cmd_rsp_virt->smt_mib_get.smt_station_status;
708 bp->stats.smt_peer_wrap_flag = bp->cmd_rsp_virt->smt_mib_get.smt_peer_wrap_flag;
709 bp->stats.smt_time_stamp = bp->cmd_rsp_virt->smt_mib_get.smt_msg_time_stamp.ls;
710 bp->stats.smt_transition_time_stamp = bp->cmd_rsp_virt->smt_mib_get.smt_transition_time_stamp.ls;
711 bp->stats.mac_frame_status_functions = bp->cmd_rsp_virt->smt_mib_get.mac_frame_status_functions;
712 bp->stats.mac_t_max_capability = bp->cmd_rsp_virt->smt_mib_get.mac_t_max_capability;
713 bp->stats.mac_tvx_capability = bp->cmd_rsp_virt->smt_mib_get.mac_tvx_capability;
714 bp->stats.mac_available_paths = bp->cmd_rsp_virt->smt_mib_get.mac_available_paths;
715 bp->stats.mac_current_path = bp->cmd_rsp_virt->smt_mib_get.mac_current_path;
716 memcpy(bp->stats.mac_upstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_upstream_nbr, FDDI_K_ALEN);
717 memcpy(bp->stats.mac_downstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_downstream_nbr, FDDI_K_ALEN);
718 memcpy(bp->stats.mac_old_upstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_old_upstream_nbr, FDDI_K_ALEN);
719 memcpy(bp->stats.mac_old_downstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_old_downstream_nbr, FDDI_K_ALEN);
720 bp->stats.mac_dup_address_test = bp->cmd_rsp_virt->smt_mib_get.mac_dup_address_test;
721 bp->stats.mac_requested_paths = bp->cmd_rsp_virt->smt_mib_get.mac_requested_paths;
722 bp->stats.mac_downstream_port_type = bp->cmd_rsp_virt->smt_mib_get.mac_downstream_port_type;
723 memcpy(bp->stats.mac_smt_address, &bp->cmd_rsp_virt->smt_mib_get.mac_smt_address, FDDI_K_ALEN);
724 bp->stats.mac_t_req = bp->cmd_rsp_virt->smt_mib_get.mac_t_req;
725 bp->stats.mac_t_neg = bp->cmd_rsp_virt->smt_mib_get.mac_t_neg;
726 bp->stats.mac_t_max = bp->cmd_rsp_virt->smt_mib_get.mac_t_max;
727 bp->stats.mac_tvx_value = bp->cmd_rsp_virt->smt_mib_get.mac_tvx_value;
728 bp->stats.mac_frame_error_threshold = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_threshold;
729 bp->stats.mac_frame_error_ratio = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_ratio;
730 bp->stats.mac_rmt_state = bp->cmd_rsp_virt->smt_mib_get.mac_rmt_state;
731 bp->stats.mac_da_flag = bp->cmd_rsp_virt->smt_mib_get.mac_da_flag;
732 bp->stats.mac_una_da_flag = bp->cmd_rsp_virt->smt_mib_get.mac_unda_flag;
733 bp->stats.mac_frame_error_flag = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_flag;
734 bp->stats.mac_ma_unitdata_available = bp->cmd_rsp_virt->smt_mib_get.mac_ma_unitdata_available;
735 bp->stats.mac_hardware_present = bp->cmd_rsp_virt->smt_mib_get.mac_hardware_present;
736 bp->stats.mac_ma_unitdata_enable = bp->cmd_rsp_virt->smt_mib_get.mac_ma_unitdata_enable;
737 bp->stats.path_tvx_lower_bound = bp->cmd_rsp_virt->smt_mib_get.path_tvx_lower_bound;
738 bp->stats.path_t_max_lower_bound = bp->cmd_rsp_virt->smt_mib_get.path_t_max_lower_bound;
739 bp->stats.path_max_t_req = bp->cmd_rsp_virt->smt_mib_get.path_max_t_req;
740 memcpy(bp->stats.path_configuration, &bp->cmd_rsp_virt->smt_mib_get.path_configuration, sizeof(bp->cmd_rsp_virt->smt_mib_get.path_configuration));
741 bp->stats.port_my_type[0] = bp->cmd_rsp_virt->smt_mib_get.port_my_type[0];
742 bp->stats.port_my_type[1] = bp->cmd_rsp_virt->smt_mib_get.port_my_type[1];
743 bp->stats.port_neighbor_type[0] = bp->cmd_rsp_virt->smt_mib_get.port_neighbor_type[0];
744 bp->stats.port_neighbor_type[1] = bp->cmd_rsp_virt->smt_mib_get.port_neighbor_type[1];
745 bp->stats.port_connection_policies[0] = bp->cmd_rsp_virt->smt_mib_get.port_connection_policies[0];
746 bp->stats.port_connection_policies[1] = bp->cmd_rsp_virt->smt_mib_get.port_connection_policies[1];
747 bp->stats.port_mac_indicated[0] = bp->cmd_rsp_virt->smt_mib_get.port_mac_indicated[0];
748 bp->stats.port_mac_indicated[1] = bp->cmd_rsp_virt->smt_mib_get.port_mac_indicated[1];
749 bp->stats.port_current_path[0] = bp->cmd_rsp_virt->smt_mib_get.port_current_path[0];
750 bp->stats.port_current_path[1] = bp->cmd_rsp_virt->smt_mib_get.port_current_path[1];
751 memcpy(&bp->stats.port_requested_paths[0 * 3], &bp->cmd_rsp_virt->smt_mib_get.port_requested_paths[0], 3);
752 memcpy(&bp->stats.port_requested_paths[1 * 3], &bp->cmd_rsp_virt->smt_mib_get.port_requested_paths[1], 3);
753 bp->stats.port_mac_placement[0] = bp->cmd_rsp_virt->smt_mib_get.port_mac_placement[0];
754 bp->stats.port_mac_placement[1] = bp->cmd_rsp_virt->smt_mib_get.port_mac_placement[1];
755 bp->stats.port_available_paths[0] = bp->cmd_rsp_virt->smt_mib_get.port_available_paths[0];
756 bp->stats.port_available_paths[1] = bp->cmd_rsp_virt->smt_mib_get.port_available_paths[1];
757 bp->stats.port_pmd_class[0] = bp->cmd_rsp_virt->smt_mib_get.port_pmd_class[0];
758 bp->stats.port_pmd_class[1] = bp->cmd_rsp_virt->smt_mib_get.port_pmd_class[1];
759 bp->stats.port_connection_capabilities[0] = bp->cmd_rsp_virt->smt_mib_get.port_connection_capabilities[0];
760 bp->stats.port_connection_capabilities[1] = bp->cmd_rsp_virt->smt_mib_get.port_connection_capabilities[1];
761 bp->stats.port_bs_flag[0] = bp->cmd_rsp_virt->smt_mib_get.port_bs_flag[0];
762 bp->stats.port_bs_flag[1] = bp->cmd_rsp_virt->smt_mib_get.port_bs_flag[1];
763 bp->stats.port_ler_estimate[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_estimate[0];
764 bp->stats.port_ler_estimate[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_estimate[1];
765 bp->stats.port_ler_cutoff[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_cutoff[0];
766 bp->stats.port_ler_cutoff[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_cutoff[1];
767 bp->stats.port_ler_alarm[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_alarm[0];
768 bp->stats.port_ler_alarm[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_alarm[1];
769 bp->stats.port_connect_state[0] = bp->cmd_rsp_virt->smt_mib_get.port_connect_state[0];
770 bp->stats.port_connect_state[1] = bp->cmd_rsp_virt->smt_mib_get.port_connect_state[1];
771 bp->stats.port_pcm_state[0] = bp->cmd_rsp_virt->smt_mib_get.port_pcm_state[0];
772 bp->stats.port_pcm_state[1] = bp->cmd_rsp_virt->smt_mib_get.port_pcm_state[1];
773 bp->stats.port_pc_withhold[0] = bp->cmd_rsp_virt->smt_mib_get.port_pc_withhold[0];
774 bp->stats.port_pc_withhold[1] = bp->cmd_rsp_virt->smt_mib_get.port_pc_withhold[1];
775 bp->stats.port_ler_flag[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_flag[0];
776 bp->stats.port_ler_flag[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_flag[1];
777 bp->stats.port_hardware_present[0] = bp->cmd_rsp_virt->smt_mib_get.port_hardware_present[0];
778 bp->stats.port_hardware_present[1] = bp->cmd_rsp_virt->smt_mib_get.port_hardware_present[1];
779
780
781
782
783 bp->stats.mac_frame_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.frame_cnt.ls;
784 bp->stats.mac_copied_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.copied_cnt.ls;
785 bp->stats.mac_transmit_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.transmit_cnt.ls;
786 bp->stats.mac_error_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.error_cnt.ls;
787 bp->stats.mac_lost_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.lost_cnt.ls;
788 bp->stats.port_lct_fail_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.lct_rejects[0].ls;
789 bp->stats.port_lct_fail_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.lct_rejects[1].ls;
790 bp->stats.port_lem_reject_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.lem_rejects[0].ls;
791 bp->stats.port_lem_reject_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.lem_rejects[1].ls;
792 bp->stats.port_lem_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.link_errors[0].ls;
793 bp->stats.port_lem_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.link_errors[1].ls;
794
795#endif
796 return (struct net_device_stats *)&bp->os.MacStat;
797}
798
799
800
801
802
803
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
837static void skfp_ctl_set_multicast_list(struct net_device *dev)
838{
839 struct s_smc *smc = netdev_priv(dev);
840 skfddi_priv *bp = &smc->os;
841 unsigned long Flags;
842
843 spin_lock_irqsave(&bp->DriverLock, Flags);
844 skfp_ctl_set_multicast_list_wo_lock(dev);
845 spin_unlock_irqrestore(&bp->DriverLock, Flags);
846}
847
848
849
850static void skfp_ctl_set_multicast_list_wo_lock(struct net_device *dev)
851{
852 struct s_smc *smc = netdev_priv(dev);
853 struct netdev_hw_addr *ha;
854
855
856 if (dev->flags & IFF_PROMISC) {
857 mac_drv_rx_mode(smc, RX_ENABLE_PROMISC);
858 pr_debug("PROMISCUOUS MODE ENABLED\n");
859 }
860
861 else {
862 mac_drv_rx_mode(smc, RX_DISABLE_PROMISC);
863 pr_debug("PROMISCUOUS MODE DISABLED\n");
864
865
866 mac_clear_multicast(smc);
867 mac_drv_rx_mode(smc, RX_DISABLE_ALLMULTI);
868
869 if (dev->flags & IFF_ALLMULTI) {
870 mac_drv_rx_mode(smc, RX_ENABLE_ALLMULTI);
871 pr_debug("ENABLE ALL MC ADDRESSES\n");
872 } else if (!netdev_mc_empty(dev)) {
873 if (netdev_mc_count(dev) <= FPMAX_MULTICAST) {
874
875
876
877 netdev_for_each_mc_addr(ha, dev) {
878 mac_add_multicast(smc,
879 (struct fddi_addr *)ha->addr,
880 1);
881
882 pr_debug("ENABLE MC ADDRESS: %pMF\n",
883 ha->addr);
884 }
885
886 } else {
887
888 mac_drv_rx_mode(smc, RX_ENABLE_ALLMULTI);
889 pr_debug("ENABLE ALL MC ADDRESSES\n");
890 }
891 } else {
892
893 pr_debug("DISABLE ALL MC ADDRESSES\n");
894 }
895
896
897 mac_update_multicast(smc);
898 }
899}
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921static int skfp_ctl_set_mac_address(struct net_device *dev, void *addr)
922{
923 struct s_smc *smc = netdev_priv(dev);
924 struct sockaddr *p_sockaddr = (struct sockaddr *) addr;
925 skfddi_priv *bp = &smc->os;
926 unsigned long Flags;
927
928
929 memcpy(dev->dev_addr, p_sockaddr->sa_data, FDDI_K_ALEN);
930 spin_lock_irqsave(&bp->DriverLock, Flags);
931 ResetAdapter(smc);
932 spin_unlock_irqrestore(&bp->DriverLock, Flags);
933
934 return 0;
935}
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961static int skfp_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
962{
963 struct s_smc *smc = netdev_priv(dev);
964 skfddi_priv *lp = &smc->os;
965 struct s_skfp_ioctl ioc;
966 int status = 0;
967
968 if (copy_from_user(&ioc, rq->ifr_data, sizeof(struct s_skfp_ioctl)))
969 return -EFAULT;
970
971 switch (ioc.cmd) {
972 case SKFP_GET_STATS:
973 ioc.len = sizeof(lp->MacStat);
974 status = copy_to_user(ioc.data, skfp_ctl_get_stats(dev), ioc.len)
975 ? -EFAULT : 0;
976 break;
977 case SKFP_CLR_STATS:
978 if (!capable(CAP_NET_ADMIN)) {
979 status = -EPERM;
980 } else {
981 memset(&lp->MacStat, 0, sizeof(lp->MacStat));
982 }
983 break;
984 default:
985 printk("ioctl for %s: unknown cmd: %04x\n", dev->name, ioc.cmd);
986 status = -EOPNOTSUPP;
987
988 }
989
990 return status;
991}
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041static netdev_tx_t skfp_send_pkt(struct sk_buff *skb,
1042 struct net_device *dev)
1043{
1044 struct s_smc *smc = netdev_priv(dev);
1045 skfddi_priv *bp = &smc->os;
1046
1047 pr_debug("skfp_send_pkt\n");
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058 if (!(skb->len >= FDDI_K_LLC_ZLEN && skb->len <= FDDI_K_LLC_LEN)) {
1059 bp->MacStat.gen.tx_errors++;
1060
1061 netif_start_queue(dev);
1062 dev_kfree_skb(skb);
1063 return NETDEV_TX_OK;
1064 }
1065 if (bp->QueueSkb == 0) {
1066
1067 netif_stop_queue(dev);
1068 return NETDEV_TX_BUSY;
1069 }
1070 bp->QueueSkb--;
1071 skb_queue_tail(&bp->SendSkbQueue, skb);
1072 send_queued_packets(netdev_priv(dev));
1073 if (bp->QueueSkb == 0) {
1074 netif_stop_queue(dev);
1075 }
1076 return NETDEV_TX_OK;
1077
1078}
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104static void send_queued_packets(struct s_smc *smc)
1105{
1106 skfddi_priv *bp = &smc->os;
1107 struct sk_buff *skb;
1108 unsigned char fc;
1109 int queue;
1110 struct s_smt_fp_txd *txd;
1111 dma_addr_t dma_address;
1112 unsigned long Flags;
1113
1114 int frame_status;
1115
1116 pr_debug("send queued packets\n");
1117 for (;;) {
1118
1119 skb = skb_dequeue(&bp->SendSkbQueue);
1120
1121 if (!skb) {
1122 pr_debug("queue empty\n");
1123 return;
1124 }
1125
1126 spin_lock_irqsave(&bp->DriverLock, Flags);
1127 fc = skb->data[0];
1128 queue = (fc & FC_SYNC_BIT) ? QUEUE_S : QUEUE_A0;
1129#ifdef ESS
1130
1131
1132 if ((fc & ~(FC_SYNC_BIT | FC_LLC_PRIOR)) == FC_ASYNC_LLC) {
1133
1134 if (!smc->ess.sync_bw_available)
1135 fc &= ~FC_SYNC_BIT;
1136
1137 else {
1138
1139 if (smc->mib.fddiESSSynchTxMode) {
1140
1141 fc |= FC_SYNC_BIT;
1142 }
1143 }
1144 }
1145#endif
1146 frame_status = hwm_tx_init(smc, fc, 1, skb->len, queue);
1147
1148 if ((frame_status & (LOC_TX | LAN_TX)) == 0) {
1149
1150
1151 if ((frame_status & RING_DOWN) != 0) {
1152
1153 pr_debug("Tx attempt while ring down.\n");
1154 } else if ((frame_status & OUT_OF_TXD) != 0) {
1155 pr_debug("%s: out of TXDs.\n", bp->dev->name);
1156 } else {
1157 pr_debug("%s: out of transmit resources",
1158 bp->dev->name);
1159 }
1160
1161
1162
1163 skb_queue_head(&bp->SendSkbQueue, skb);
1164 spin_unlock_irqrestore(&bp->DriverLock, Flags);
1165 return;
1166
1167 }
1168
1169 bp->QueueSkb++;
1170
1171
1172 CheckSourceAddress(skb->data, smc->hw.fddi_canon_addr.a);
1173
1174 txd = (struct s_smt_fp_txd *) HWM_GET_CURR_TXD(smc, queue);
1175
1176 dma_address = pci_map_single(&bp->pdev, skb->data,
1177 skb->len, PCI_DMA_TODEVICE);
1178 if (frame_status & LAN_TX) {
1179 txd->txd_os.skb = skb;
1180 txd->txd_os.dma_addr = dma_address;
1181 }
1182 hwm_tx_frag(smc, skb->data, dma_address, skb->len,
1183 frame_status | FIRST_FRAG | LAST_FRAG | EN_IRQ_EOF);
1184
1185 if (!(frame_status & LAN_TX)) {
1186 pci_unmap_single(&bp->pdev, dma_address,
1187 skb->len, PCI_DMA_TODEVICE);
1188 dev_kfree_skb_irq(skb);
1189 }
1190 spin_unlock_irqrestore(&bp->DriverLock, Flags);
1191 }
1192
1193 return;
1194
1195}
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205static void CheckSourceAddress(unsigned char *frame, unsigned char *hw_addr)
1206{
1207 unsigned char SRBit;
1208
1209 if ((((unsigned long) frame[1 + 6]) & ~0x01) != 0)
1210
1211 return;
1212 if ((unsigned short) frame[1 + 10] != 0)
1213 return;
1214 SRBit = frame[1 + 6] & 0x01;
1215 memcpy(&frame[1 + 6], hw_addr, ETH_ALEN);
1216 frame[8] |= SRBit;
1217}
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231static void ResetAdapter(struct s_smc *smc)
1232{
1233
1234 pr_debug("[fddi: ResetAdapter]\n");
1235
1236
1237
1238 card_stop(smc);
1239
1240
1241 mac_drv_clear_tx_queue(smc);
1242 mac_drv_clear_rx_queue(smc);
1243
1244
1245
1246 smt_reset_defaults(smc, 1);
1247
1248 init_smt(smc, (smc->os.dev)->dev_addr);
1249
1250 smt_online(smc, 1);
1251 STI_FBI();
1252
1253
1254 skfp_ctl_set_multicast_list_wo_lock(smc->os.dev);
1255}
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276void llc_restart_tx(struct s_smc *smc)
1277{
1278 skfddi_priv *bp = &smc->os;
1279
1280 pr_debug("[llc_restart_tx]\n");
1281
1282
1283 spin_unlock(&bp->DriverLock);
1284 send_queued_packets(smc);
1285 spin_lock(&bp->DriverLock);
1286 netif_start_queue(bp->dev);
1287
1288}
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306void *mac_drv_get_space(struct s_smc *smc, unsigned int size)
1307{
1308 void *virt;
1309
1310 pr_debug("mac_drv_get_space (%d bytes), ", size);
1311 virt = (void *) (smc->os.SharedMemAddr + smc->os.SharedMemHeap);
1312
1313 if ((smc->os.SharedMemHeap + size) > smc->os.SharedMemSize) {
1314 printk("Unexpected SMT memory size requested: %d\n", size);
1315 return NULL;
1316 }
1317 smc->os.SharedMemHeap += size;
1318
1319 pr_debug("mac_drv_get_space end\n");
1320 pr_debug("virt addr: %lx\n", (ulong) virt);
1321 pr_debug("bus addr: %lx\n", (ulong)
1322 (smc->os.SharedMemDMA +
1323 ((char *) virt - (char *)smc->os.SharedMemAddr)));
1324 return virt;
1325}
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346void *mac_drv_get_desc_mem(struct s_smc *smc, unsigned int size)
1347{
1348
1349 char *virt;
1350
1351 pr_debug("mac_drv_get_desc_mem\n");
1352
1353
1354
1355 virt = mac_drv_get_space(smc, size);
1356
1357 size = (u_int) (16 - (((unsigned long) virt) & 15UL));
1358 size = size % 16;
1359
1360 pr_debug("Allocate %u bytes alignment gap ", size);
1361 pr_debug("for descriptor memory.\n");
1362
1363 if (!mac_drv_get_space(smc, size)) {
1364 printk("fddi: Unable to align descriptor memory.\n");
1365 return NULL;
1366 }
1367 return virt + size;
1368}
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384unsigned long mac_drv_virt2phys(struct s_smc *smc, void *virt)
1385{
1386 return smc->os.SharedMemDMA +
1387 ((char *) virt - (char *)smc->os.SharedMemAddr);
1388}
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419u_long dma_master(struct s_smc * smc, void *virt, int len, int flag)
1420{
1421 return smc->os.SharedMemDMA +
1422 ((char *) virt - (char *)smc->os.SharedMemAddr);
1423}
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447void dma_complete(struct s_smc *smc, volatile union s_fp_descr *descr, int flag)
1448{
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461 if (flag & DMA_WR) {
1462 skfddi_priv *bp = &smc->os;
1463 volatile struct s_smt_fp_rxd *r = &descr->r;
1464
1465
1466 if (r->rxd_os.skb && r->rxd_os.dma_addr) {
1467 int MaxFrameSize = bp->MaxFrameSize;
1468
1469 pci_unmap_single(&bp->pdev, r->rxd_os.dma_addr,
1470 MaxFrameSize, PCI_DMA_FROMDEVICE);
1471 r->rxd_os.dma_addr = 0;
1472 }
1473 }
1474}
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491void mac_drv_tx_complete(struct s_smc *smc, volatile struct s_smt_fp_txd *txd)
1492{
1493 struct sk_buff *skb;
1494
1495 pr_debug("entering mac_drv_tx_complete\n");
1496
1497
1498 if (!(skb = txd->txd_os.skb)) {
1499 pr_debug("TXD with no skb assigned.\n");
1500 return;
1501 }
1502 txd->txd_os.skb = NULL;
1503
1504
1505 pci_unmap_single(&smc->os.pdev, txd->txd_os.dma_addr,
1506 skb->len, PCI_DMA_TODEVICE);
1507 txd->txd_os.dma_addr = 0;
1508
1509 smc->os.MacStat.gen.tx_packets++;
1510 smc->os.MacStat.gen.tx_bytes+=skb->len;
1511
1512
1513 dev_kfree_skb_irq(skb);
1514
1515 pr_debug("leaving mac_drv_tx_complete\n");
1516}
1517
1518
1519
1520
1521
1522
1523
1524#ifdef DUMPPACKETS
1525void dump_data(unsigned char *Data, int length)
1526{
1527 int i, j;
1528 unsigned char s[255], sh[10];
1529 if (length > 64) {
1530 length = 64;
1531 }
1532 printk(KERN_INFO "---Packet start---\n");
1533 for (i = 0, j = 0; i < length / 8; i++, j += 8)
1534 printk(KERN_INFO "%02x %02x %02x %02x %02x %02x %02x %02x\n",
1535 Data[j + 0], Data[j + 1], Data[j + 2], Data[j + 3],
1536 Data[j + 4], Data[j + 5], Data[j + 6], Data[j + 7]);
1537 strcpy(s, "");
1538 for (i = 0; i < length % 8; i++) {
1539 sprintf(sh, "%02x ", Data[j + i]);
1540 strcat(s, sh);
1541 }
1542 printk(KERN_INFO "%s\n", s);
1543 printk(KERN_INFO "------------------\n");
1544}
1545#else
1546#define dump_data(data,len)
1547#endif
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573void mac_drv_rx_complete(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
1574 int frag_count, int len)
1575{
1576 skfddi_priv *bp = &smc->os;
1577 struct sk_buff *skb;
1578 unsigned char *virt, *cp;
1579 unsigned short ri;
1580 u_int RifLength;
1581
1582 pr_debug("entering mac_drv_rx_complete (len=%d)\n", len);
1583 if (frag_count != 1) {
1584
1585 printk("fddi: Multi-fragment receive!\n");
1586 goto RequeueRxd;
1587
1588 }
1589 skb = rxd->rxd_os.skb;
1590 if (!skb) {
1591 pr_debug("No skb in rxd\n");
1592 smc->os.MacStat.gen.rx_errors++;
1593 goto RequeueRxd;
1594 }
1595 virt = skb->data;
1596
1597
1598
1599 dump_data(skb->data, len);
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616 if ((virt[1 + 6] & FDDI_RII) == 0)
1617 RifLength = 0;
1618 else {
1619 int n;
1620
1621 pr_debug("RIF found\n");
1622
1623 cp = virt + FDDI_MAC_HDR_LEN;
1624
1625 ri = ntohs(*((__be16 *) cp));
1626 RifLength = ri & FDDI_RCF_LEN_MASK;
1627 if (len < (int) (FDDI_MAC_HDR_LEN + RifLength)) {
1628 printk("fddi: Invalid RIF.\n");
1629 goto RequeueRxd;
1630
1631 }
1632 virt[1 + 6] &= ~FDDI_RII;
1633
1634
1635 virt = cp + RifLength;
1636 for (n = FDDI_MAC_HDR_LEN; n; n--)
1637 *--virt = *--cp;
1638
1639 skb_pull(skb, RifLength);
1640 len -= RifLength;
1641 RifLength = 0;
1642 }
1643
1644
1645 smc->os.MacStat.gen.rx_packets++;
1646
1647 smc->os.MacStat.gen.rx_bytes+=len;
1648
1649
1650 if (virt[1] & 0x01) {
1651
1652 smc->os.MacStat.gen.multicast++;
1653 }
1654
1655
1656 rxd->rxd_os.skb = NULL;
1657 skb_trim(skb, len);
1658 skb->protocol = fddi_type_trans(skb, bp->dev);
1659
1660 netif_rx(skb);
1661
1662 HWM_RX_CHECK(smc, RX_LOW_WATERMARK);
1663 return;
1664
1665 RequeueRxd:
1666 pr_debug("Rx: re-queue RXD.\n");
1667 mac_drv_requeue_rxd(smc, rxd, frag_count);
1668 smc->os.MacStat.gen.rx_errors++;
1669
1670
1671}
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692void mac_drv_requeue_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
1693 int frag_count)
1694{
1695 volatile struct s_smt_fp_rxd *next_rxd;
1696 volatile struct s_smt_fp_rxd *src_rxd;
1697 struct sk_buff *skb;
1698 int MaxFrameSize;
1699 unsigned char *v_addr;
1700 dma_addr_t b_addr;
1701
1702 if (frag_count != 1)
1703
1704 printk("fddi: Multi-fragment requeue!\n");
1705
1706 MaxFrameSize = smc->os.MaxFrameSize;
1707 src_rxd = rxd;
1708 for (; frag_count > 0; frag_count--) {
1709 next_rxd = src_rxd->rxd_next;
1710 rxd = HWM_GET_CURR_RXD(smc);
1711
1712 skb = src_rxd->rxd_os.skb;
1713 if (skb == NULL) {
1714
1715 pr_debug("Requeue with no skb in rxd!\n");
1716 skb = alloc_skb(MaxFrameSize + 3, GFP_ATOMIC);
1717 if (skb) {
1718
1719 rxd->rxd_os.skb = skb;
1720 skb_reserve(skb, 3);
1721 skb_put(skb, MaxFrameSize);
1722 v_addr = skb->data;
1723 b_addr = pci_map_single(&smc->os.pdev,
1724 v_addr,
1725 MaxFrameSize,
1726 PCI_DMA_FROMDEVICE);
1727 rxd->rxd_os.dma_addr = b_addr;
1728 } else {
1729
1730 pr_debug("Queueing invalid buffer!\n");
1731 rxd->rxd_os.skb = NULL;
1732 v_addr = smc->os.LocalRxBuffer;
1733 b_addr = smc->os.LocalRxBufferDMA;
1734 }
1735 } else {
1736
1737 rxd->rxd_os.skb = skb;
1738 v_addr = skb->data;
1739 b_addr = pci_map_single(&smc->os.pdev,
1740 v_addr,
1741 MaxFrameSize,
1742 PCI_DMA_FROMDEVICE);
1743 rxd->rxd_os.dma_addr = b_addr;
1744 }
1745 hwm_rx_frag(smc, v_addr, b_addr, MaxFrameSize,
1746 FIRST_FRAG | LAST_FRAG);
1747
1748 src_rxd = next_rxd;
1749 }
1750}
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769void mac_drv_fill_rxd(struct s_smc *smc)
1770{
1771 int MaxFrameSize;
1772 unsigned char *v_addr;
1773 unsigned long b_addr;
1774 struct sk_buff *skb;
1775 volatile struct s_smt_fp_rxd *rxd;
1776
1777 pr_debug("entering mac_drv_fill_rxd\n");
1778
1779
1780
1781
1782 MaxFrameSize = smc->os.MaxFrameSize;
1783
1784 while (HWM_GET_RX_FREE(smc) > 0) {
1785 pr_debug(".\n");
1786
1787 rxd = HWM_GET_CURR_RXD(smc);
1788 skb = alloc_skb(MaxFrameSize + 3, GFP_ATOMIC);
1789 if (skb) {
1790
1791 skb_reserve(skb, 3);
1792 skb_put(skb, MaxFrameSize);
1793 v_addr = skb->data;
1794 b_addr = pci_map_single(&smc->os.pdev,
1795 v_addr,
1796 MaxFrameSize,
1797 PCI_DMA_FROMDEVICE);
1798 rxd->rxd_os.dma_addr = b_addr;
1799 } else {
1800
1801
1802
1803
1804
1805 pr_debug("Queueing invalid buffer!\n");
1806 v_addr = smc->os.LocalRxBuffer;
1807 b_addr = smc->os.LocalRxBufferDMA;
1808 }
1809
1810 rxd->rxd_os.skb = skb;
1811
1812
1813 hwm_rx_frag(smc, v_addr, b_addr, MaxFrameSize,
1814 FIRST_FRAG | LAST_FRAG);
1815 }
1816 pr_debug("leaving mac_drv_fill_rxd\n");
1817}
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836void mac_drv_clear_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
1837 int frag_count)
1838{
1839
1840 struct sk_buff *skb;
1841
1842 pr_debug("entering mac_drv_clear_rxd\n");
1843
1844 if (frag_count != 1)
1845
1846 printk("fddi: Multi-fragment clear!\n");
1847
1848 for (; frag_count > 0; frag_count--) {
1849 skb = rxd->rxd_os.skb;
1850 if (skb != NULL) {
1851 skfddi_priv *bp = &smc->os;
1852 int MaxFrameSize = bp->MaxFrameSize;
1853
1854 pci_unmap_single(&bp->pdev, rxd->rxd_os.dma_addr,
1855 MaxFrameSize, PCI_DMA_FROMDEVICE);
1856
1857 dev_kfree_skb(skb);
1858 rxd->rxd_os.skb = NULL;
1859 }
1860 rxd = rxd->rxd_next;
1861
1862 }
1863}
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893int mac_drv_rx_init(struct s_smc *smc, int len, int fc,
1894 char *look_ahead, int la_len)
1895{
1896 struct sk_buff *skb;
1897
1898 pr_debug("entering mac_drv_rx_init(len=%d)\n", len);
1899
1900
1901
1902 if (len != la_len || len < FDDI_MAC_HDR_LEN || !look_ahead) {
1903 pr_debug("fddi: Discard invalid local SMT frame\n");
1904 pr_debug(" len=%d, la_len=%d, (ULONG) look_ahead=%08lXh.\n",
1905 len, la_len, (unsigned long) look_ahead);
1906 return 0;
1907 }
1908 skb = alloc_skb(len + 3, GFP_ATOMIC);
1909 if (!skb) {
1910 pr_debug("fddi: Local SMT: skb memory exhausted.\n");
1911 return 0;
1912 }
1913 skb_reserve(skb, 3);
1914 skb_put(skb, len);
1915 skb_copy_to_linear_data(skb, look_ahead, len);
1916
1917
1918 skb->protocol = fddi_type_trans(skb, smc->os.dev);
1919 netif_rx(skb);
1920
1921 return 0;
1922}
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940void smt_timer_poll(struct s_smc *smc)
1941{
1942}
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958void ring_status_indication(struct s_smc *smc, u_long status)
1959{
1960 pr_debug("ring_status_indication( ");
1961 if (status & RS_RES15)
1962 pr_debug("RS_RES15 ");
1963 if (status & RS_HARDERROR)
1964 pr_debug("RS_HARDERROR ");
1965 if (status & RS_SOFTERROR)
1966 pr_debug("RS_SOFTERROR ");
1967 if (status & RS_BEACON)
1968 pr_debug("RS_BEACON ");
1969 if (status & RS_PATHTEST)
1970 pr_debug("RS_PATHTEST ");
1971 if (status & RS_SELFTEST)
1972 pr_debug("RS_SELFTEST ");
1973 if (status & RS_RES9)
1974 pr_debug("RS_RES9 ");
1975 if (status & RS_DISCONNECT)
1976 pr_debug("RS_DISCONNECT ");
1977 if (status & RS_RES7)
1978 pr_debug("RS_RES7 ");
1979 if (status & RS_DUPADDR)
1980 pr_debug("RS_DUPADDR ");
1981 if (status & RS_NORINGOP)
1982 pr_debug("RS_NORINGOP ");
1983 if (status & RS_VERSION)
1984 pr_debug("RS_VERSION ");
1985 if (status & RS_STUCKBYPASSS)
1986 pr_debug("RS_STUCKBYPASSS ");
1987 if (status & RS_EVENT)
1988 pr_debug("RS_EVENT ");
1989 if (status & RS_RINGOPCHANGE)
1990 pr_debug("RS_RINGOPCHANGE ");
1991 if (status & RS_RES0)
1992 pr_debug("RS_RES0 ");
1993 pr_debug("]\n");
1994}
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012unsigned long smt_get_time(void)
2013{
2014 return jiffies;
2015}
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032void smt_stat_counter(struct s_smc *smc, int stat)
2033{
2034
2035
2036 pr_debug("smt_stat_counter\n");
2037 switch (stat) {
2038 case 0:
2039 pr_debug("Ring operational change.\n");
2040 break;
2041 case 1:
2042 pr_debug("Receive fifo overflow.\n");
2043 smc->os.MacStat.gen.rx_errors++;
2044 break;
2045 default:
2046 pr_debug("Unknown status (%d).\n", stat);
2047 break;
2048 }
2049}
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068void cfm_state_change(struct s_smc *smc, int c_state)
2069{
2070#ifdef DRIVERDEBUG
2071 char *s;
2072
2073 switch (c_state) {
2074 case SC0_ISOLATED:
2075 s = "SC0_ISOLATED";
2076 break;
2077 case SC1_WRAP_A:
2078 s = "SC1_WRAP_A";
2079 break;
2080 case SC2_WRAP_B:
2081 s = "SC2_WRAP_B";
2082 break;
2083 case SC4_THRU_A:
2084 s = "SC4_THRU_A";
2085 break;
2086 case SC5_THRU_B:
2087 s = "SC5_THRU_B";
2088 break;
2089 case SC7_WRAP_S:
2090 s = "SC7_WRAP_S";
2091 break;
2092 case SC9_C_WRAP_A:
2093 s = "SC9_C_WRAP_A";
2094 break;
2095 case SC10_C_WRAP_B:
2096 s = "SC10_C_WRAP_B";
2097 break;
2098 case SC11_C_WRAP_S:
2099 s = "SC11_C_WRAP_S";
2100 break;
2101 default:
2102 pr_debug("cfm_state_change: unknown %d\n", c_state);
2103 return;
2104 }
2105 pr_debug("cfm_state_change: %s\n", s);
2106#endif
2107}
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126void ecm_state_change(struct s_smc *smc, int e_state)
2127{
2128#ifdef DRIVERDEBUG
2129 char *s;
2130
2131 switch (e_state) {
2132 case EC0_OUT:
2133 s = "EC0_OUT";
2134 break;
2135 case EC1_IN:
2136 s = "EC1_IN";
2137 break;
2138 case EC2_TRACE:
2139 s = "EC2_TRACE";
2140 break;
2141 case EC3_LEAVE:
2142 s = "EC3_LEAVE";
2143 break;
2144 case EC4_PATH_TEST:
2145 s = "EC4_PATH_TEST";
2146 break;
2147 case EC5_INSERT:
2148 s = "EC5_INSERT";
2149 break;
2150 case EC6_CHECK:
2151 s = "EC6_CHECK";
2152 break;
2153 case EC7_DEINSERT:
2154 s = "EC7_DEINSERT";
2155 break;
2156 default:
2157 s = "unknown";
2158 break;
2159 }
2160 pr_debug("ecm_state_change: %s\n", s);
2161#endif
2162}
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181void rmt_state_change(struct s_smc *smc, int r_state)
2182{
2183#ifdef DRIVERDEBUG
2184 char *s;
2185
2186 switch (r_state) {
2187 case RM0_ISOLATED:
2188 s = "RM0_ISOLATED";
2189 break;
2190 case RM1_NON_OP:
2191 s = "RM1_NON_OP - not operational";
2192 break;
2193 case RM2_RING_OP:
2194 s = "RM2_RING_OP - ring operational";
2195 break;
2196 case RM3_DETECT:
2197 s = "RM3_DETECT - detect dupl addresses";
2198 break;
2199 case RM4_NON_OP_DUP:
2200 s = "RM4_NON_OP_DUP - dupl. addr detected";
2201 break;
2202 case RM5_RING_OP_DUP:
2203 s = "RM5_RING_OP_DUP - ring oper. with dupl. addr";
2204 break;
2205 case RM6_DIRECTED:
2206 s = "RM6_DIRECTED - sending directed beacons";
2207 break;
2208 case RM7_TRACE:
2209 s = "RM7_TRACE - trace initiated";
2210 break;
2211 default:
2212 s = "unknown";
2213 break;
2214 }
2215 pr_debug("[rmt_state_change: %s]\n", s);
2216#endif
2217}
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233void drv_reset_indication(struct s_smc *smc)
2234{
2235 pr_debug("entering drv_reset_indication\n");
2236
2237 smc->os.ResetRequested = TRUE;
2238
2239}
2240
2241static struct pci_driver skfddi_pci_driver = {
2242 .name = "skfddi",
2243 .id_table = skfddi_pci_tbl,
2244 .probe = skfp_init_one,
2245 .remove = skfp_remove_one,
2246};
2247
2248module_pci_driver(skfddi_pci_driver);
2249