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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 <linux/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_set_rx_mode = skfp_ctl_set_multicast_list,
170 .ndo_set_mac_address = skfp_ctl_set_mac_address,
171 .ndo_do_ioctl = skfp_ioctl,
172};
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203static int skfp_init_one(struct pci_dev *pdev,
204 const struct pci_device_id *ent)
205{
206 struct net_device *dev;
207 struct s_smc *smc;
208 void __iomem *mem;
209 int err;
210
211 pr_debug("entering skfp_init_one\n");
212
213 if (num_boards == 0)
214 printk("%s\n", boot_msg);
215
216 err = pci_enable_device(pdev);
217 if (err)
218 return err;
219
220 err = pci_request_regions(pdev, "skfddi");
221 if (err)
222 goto err_out1;
223
224 pci_set_master(pdev);
225
226#ifdef MEM_MAPPED_IO
227 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
228 printk(KERN_ERR "skfp: region is not an MMIO resource\n");
229 err = -EIO;
230 goto err_out2;
231 }
232
233 mem = ioremap(pci_resource_start(pdev, 0), 0x4000);
234#else
235 if (!(pci_resource_flags(pdev, 1) & IO_RESOURCE_IO)) {
236 printk(KERN_ERR "skfp: region is not PIO resource\n");
237 err = -EIO;
238 goto err_out2;
239 }
240
241 mem = ioport_map(pci_resource_start(pdev, 1), FP_IO_LEN);
242#endif
243 if (!mem) {
244 printk(KERN_ERR "skfp: Unable to map register, "
245 "FDDI adapter will be disabled.\n");
246 err = -EIO;
247 goto err_out2;
248 }
249
250 dev = alloc_fddidev(sizeof(struct s_smc));
251 if (!dev) {
252 printk(KERN_ERR "skfp: Unable to allocate fddi device, "
253 "FDDI adapter will be disabled.\n");
254 err = -ENOMEM;
255 goto err_out3;
256 }
257
258 dev->irq = pdev->irq;
259 dev->netdev_ops = &skfp_netdev_ops;
260
261 SET_NETDEV_DEV(dev, &pdev->dev);
262
263
264 smc = netdev_priv(dev);
265 smc->os.dev = dev;
266 smc->os.bus_type = SK_BUS_TYPE_PCI;
267 smc->os.pdev = *pdev;
268 smc->os.QueueSkb = MAX_TX_QUEUE_LEN;
269 smc->os.MaxFrameSize = MAX_FRAME_SIZE;
270 smc->os.dev = dev;
271 smc->hw.slot = -1;
272 smc->hw.iop = mem;
273 smc->os.ResetRequested = FALSE;
274 skb_queue_head_init(&smc->os.SendSkbQueue);
275
276 dev->base_addr = (unsigned long)mem;
277
278 err = skfp_driver_init(dev);
279 if (err)
280 goto err_out4;
281
282 err = register_netdev(dev);
283 if (err)
284 goto err_out5;
285
286 ++num_boards;
287 pci_set_drvdata(pdev, dev);
288
289 if ((pdev->subsystem_device & 0xff00) == 0x5500 ||
290 (pdev->subsystem_device & 0xff00) == 0x5800)
291 printk("%s: SysKonnect FDDI PCI adapter"
292 " found (SK-%04X)\n", dev->name,
293 pdev->subsystem_device);
294 else
295 printk("%s: FDDI PCI adapter found\n", dev->name);
296
297 return 0;
298err_out5:
299 if (smc->os.SharedMemAddr)
300 pci_free_consistent(pdev, smc->os.SharedMemSize,
301 smc->os.SharedMemAddr,
302 smc->os.SharedMemDMA);
303 pci_free_consistent(pdev, MAX_FRAME_SIZE,
304 smc->os.LocalRxBuffer, smc->os.LocalRxBufferDMA);
305err_out4:
306 free_netdev(dev);
307err_out3:
308#ifdef MEM_MAPPED_IO
309 iounmap(mem);
310#else
311 ioport_unmap(mem);
312#endif
313err_out2:
314 pci_release_regions(pdev);
315err_out1:
316 pci_disable_device(pdev);
317 return err;
318}
319
320
321
322
323static void skfp_remove_one(struct pci_dev *pdev)
324{
325 struct net_device *p = pci_get_drvdata(pdev);
326 struct s_smc *lp = netdev_priv(p);
327
328 unregister_netdev(p);
329
330 if (lp->os.SharedMemAddr) {
331 pci_free_consistent(&lp->os.pdev,
332 lp->os.SharedMemSize,
333 lp->os.SharedMemAddr,
334 lp->os.SharedMemDMA);
335 lp->os.SharedMemAddr = NULL;
336 }
337 if (lp->os.LocalRxBuffer) {
338 pci_free_consistent(&lp->os.pdev,
339 MAX_FRAME_SIZE,
340 lp->os.LocalRxBuffer,
341 lp->os.LocalRxBufferDMA);
342 lp->os.LocalRxBuffer = NULL;
343 }
344#ifdef MEM_MAPPED_IO
345 iounmap(lp->hw.iop);
346#else
347 ioport_unmap(lp->hw.iop);
348#endif
349 pci_release_regions(pdev);
350 free_netdev(p);
351
352 pci_disable_device(pdev);
353}
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380static int skfp_driver_init(struct net_device *dev)
381{
382 struct s_smc *smc = netdev_priv(dev);
383 skfddi_priv *bp = &smc->os;
384 int err = -EIO;
385
386 pr_debug("entering skfp_driver_init\n");
387
388
389 bp->base_addr = dev->base_addr;
390
391
392 smc->hw.irq = dev->irq;
393
394 spin_lock_init(&bp->DriverLock);
395
396
397 bp->LocalRxBuffer = pci_alloc_consistent(&bp->pdev, MAX_FRAME_SIZE, &bp->LocalRxBufferDMA);
398 if (!bp->LocalRxBuffer) {
399 printk("could not allocate mem for ");
400 printk("LocalRxBuffer: %d byte\n", MAX_FRAME_SIZE);
401 goto fail;
402 }
403
404
405 bp->SharedMemSize = mac_drv_check_space();
406 pr_debug("Memory for HWM: %ld\n", bp->SharedMemSize);
407 if (bp->SharedMemSize > 0) {
408 bp->SharedMemSize += 16;
409
410 bp->SharedMemAddr = pci_alloc_consistent(&bp->pdev,
411 bp->SharedMemSize,
412 &bp->SharedMemDMA);
413 if (!bp->SharedMemAddr) {
414 printk("could not allocate mem for ");
415 printk("hardware module: %ld byte\n",
416 bp->SharedMemSize);
417 goto fail;
418 }
419 bp->SharedMemHeap = 0;
420
421 } else {
422 bp->SharedMemAddr = NULL;
423 bp->SharedMemHeap = 0;
424 }
425
426 memset(bp->SharedMemAddr, 0, bp->SharedMemSize);
427
428 card_stop(smc);
429
430 pr_debug("mac_drv_init()..\n");
431 if (mac_drv_init(smc) != 0) {
432 pr_debug("mac_drv_init() failed\n");
433 goto fail;
434 }
435 read_address(smc, NULL);
436 pr_debug("HW-Addr: %pMF\n", smc->hw.fddi_canon_addr.a);
437 memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, ETH_ALEN);
438
439 smt_reset_defaults(smc, 0);
440
441 return 0;
442
443fail:
444 if (bp->SharedMemAddr) {
445 pci_free_consistent(&bp->pdev,
446 bp->SharedMemSize,
447 bp->SharedMemAddr,
448 bp->SharedMemDMA);
449 bp->SharedMemAddr = NULL;
450 }
451 if (bp->LocalRxBuffer) {
452 pci_free_consistent(&bp->pdev, MAX_FRAME_SIZE,
453 bp->LocalRxBuffer, bp->LocalRxBufferDMA);
454 bp->LocalRxBuffer = NULL;
455 }
456 return err;
457}
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481static int skfp_open(struct net_device *dev)
482{
483 struct s_smc *smc = netdev_priv(dev);
484 int err;
485
486 pr_debug("entering skfp_open\n");
487
488 err = request_irq(dev->irq, skfp_interrupt, IRQF_SHARED,
489 dev->name, dev);
490 if (err)
491 return err;
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503 read_address(smc, NULL);
504 memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, ETH_ALEN);
505
506 init_smt(smc, NULL);
507 smt_online(smc, 1);
508 STI_FBI();
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511 mac_clear_multicast(smc);
512
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514 mac_drv_rx_mode(smc, RX_DISABLE_PROMISC);
515
516 netif_start_queue(dev);
517 return 0;
518}
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548static int skfp_close(struct net_device *dev)
549{
550 struct s_smc *smc = netdev_priv(dev);
551 skfddi_priv *bp = &smc->os;
552
553 CLI_FBI();
554 smt_reset_defaults(smc, 1);
555 card_stop(smc);
556 mac_drv_clear_tx_queue(smc);
557 mac_drv_clear_rx_queue(smc);
558
559 netif_stop_queue(dev);
560
561 free_irq(dev->irq, dev);
562
563 skb_queue_purge(&bp->SendSkbQueue);
564 bp->QueueSkb = MAX_TX_QUEUE_LEN;
565
566 return 0;
567}
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605static irqreturn_t skfp_interrupt(int irq, void *dev_id)
606{
607 struct net_device *dev = dev_id;
608 struct s_smc *smc;
609 skfddi_priv *bp;
610
611 smc = netdev_priv(dev);
612 bp = &smc->os;
613
614
615 if (inpd(ADDR(B0_IMSK)) == 0) {
616
617 return IRQ_NONE;
618 }
619
620 if ((inpd(ISR_A) & smc->hw.is_imask) == 0) {
621
622 return IRQ_NONE;
623 }
624 CLI_FBI();
625 spin_lock(&bp->DriverLock);
626
627
628 fddi_isr(smc);
629
630 if (smc->os.ResetRequested) {
631 ResetAdapter(smc);
632 smc->os.ResetRequested = FALSE;
633 }
634 spin_unlock(&bp->DriverLock);
635 STI_FBI();
636
637 return IRQ_HANDLED;
638}
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672static struct net_device_stats *skfp_ctl_get_stats(struct net_device *dev)
673{
674 struct s_smc *bp = netdev_priv(dev);
675
676
677
678 bp->os.MacStat.port_bs_flag[0] = 0x1234;
679 bp->os.MacStat.port_bs_flag[1] = 0x5678;
680
681#if 0
682
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685
686 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));
687 bp->stats.smt_op_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_op_version_id;
688 bp->stats.smt_hi_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_hi_version_id;
689 bp->stats.smt_lo_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_lo_version_id;
690 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));
691 bp->stats.smt_mib_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_mib_version_id;
692 bp->stats.smt_mac_cts = bp->cmd_rsp_virt->smt_mib_get.smt_mac_ct;
693 bp->stats.smt_non_master_cts = bp->cmd_rsp_virt->smt_mib_get.smt_non_master_ct;
694 bp->stats.smt_master_cts = bp->cmd_rsp_virt->smt_mib_get.smt_master_ct;
695 bp->stats.smt_available_paths = bp->cmd_rsp_virt->smt_mib_get.smt_available_paths;
696 bp->stats.smt_config_capabilities = bp->cmd_rsp_virt->smt_mib_get.smt_config_capabilities;
697 bp->stats.smt_config_policy = bp->cmd_rsp_virt->smt_mib_get.smt_config_policy;
698 bp->stats.smt_connection_policy = bp->cmd_rsp_virt->smt_mib_get.smt_connection_policy;
699 bp->stats.smt_t_notify = bp->cmd_rsp_virt->smt_mib_get.smt_t_notify;
700 bp->stats.smt_stat_rpt_policy = bp->cmd_rsp_virt->smt_mib_get.smt_stat_rpt_policy;
701 bp->stats.smt_trace_max_expiration = bp->cmd_rsp_virt->smt_mib_get.smt_trace_max_expiration;
702 bp->stats.smt_bypass_present = bp->cmd_rsp_virt->smt_mib_get.smt_bypass_present;
703 bp->stats.smt_ecm_state = bp->cmd_rsp_virt->smt_mib_get.smt_ecm_state;
704 bp->stats.smt_cf_state = bp->cmd_rsp_virt->smt_mib_get.smt_cf_state;
705 bp->stats.smt_remote_disconnect_flag = bp->cmd_rsp_virt->smt_mib_get.smt_remote_disconnect_flag;
706 bp->stats.smt_station_status = bp->cmd_rsp_virt->smt_mib_get.smt_station_status;
707 bp->stats.smt_peer_wrap_flag = bp->cmd_rsp_virt->smt_mib_get.smt_peer_wrap_flag;
708 bp->stats.smt_time_stamp = bp->cmd_rsp_virt->smt_mib_get.smt_msg_time_stamp.ls;
709 bp->stats.smt_transition_time_stamp = bp->cmd_rsp_virt->smt_mib_get.smt_transition_time_stamp.ls;
710 bp->stats.mac_frame_status_functions = bp->cmd_rsp_virt->smt_mib_get.mac_frame_status_functions;
711 bp->stats.mac_t_max_capability = bp->cmd_rsp_virt->smt_mib_get.mac_t_max_capability;
712 bp->stats.mac_tvx_capability = bp->cmd_rsp_virt->smt_mib_get.mac_tvx_capability;
713 bp->stats.mac_available_paths = bp->cmd_rsp_virt->smt_mib_get.mac_available_paths;
714 bp->stats.mac_current_path = bp->cmd_rsp_virt->smt_mib_get.mac_current_path;
715 memcpy(bp->stats.mac_upstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_upstream_nbr, FDDI_K_ALEN);
716 memcpy(bp->stats.mac_downstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_downstream_nbr, FDDI_K_ALEN);
717 memcpy(bp->stats.mac_old_upstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_old_upstream_nbr, FDDI_K_ALEN);
718 memcpy(bp->stats.mac_old_downstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_old_downstream_nbr, FDDI_K_ALEN);
719 bp->stats.mac_dup_address_test = bp->cmd_rsp_virt->smt_mib_get.mac_dup_address_test;
720 bp->stats.mac_requested_paths = bp->cmd_rsp_virt->smt_mib_get.mac_requested_paths;
721 bp->stats.mac_downstream_port_type = bp->cmd_rsp_virt->smt_mib_get.mac_downstream_port_type;
722 memcpy(bp->stats.mac_smt_address, &bp->cmd_rsp_virt->smt_mib_get.mac_smt_address, FDDI_K_ALEN);
723 bp->stats.mac_t_req = bp->cmd_rsp_virt->smt_mib_get.mac_t_req;
724 bp->stats.mac_t_neg = bp->cmd_rsp_virt->smt_mib_get.mac_t_neg;
725 bp->stats.mac_t_max = bp->cmd_rsp_virt->smt_mib_get.mac_t_max;
726 bp->stats.mac_tvx_value = bp->cmd_rsp_virt->smt_mib_get.mac_tvx_value;
727 bp->stats.mac_frame_error_threshold = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_threshold;
728 bp->stats.mac_frame_error_ratio = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_ratio;
729 bp->stats.mac_rmt_state = bp->cmd_rsp_virt->smt_mib_get.mac_rmt_state;
730 bp->stats.mac_da_flag = bp->cmd_rsp_virt->smt_mib_get.mac_da_flag;
731 bp->stats.mac_una_da_flag = bp->cmd_rsp_virt->smt_mib_get.mac_unda_flag;
732 bp->stats.mac_frame_error_flag = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_flag;
733 bp->stats.mac_ma_unitdata_available = bp->cmd_rsp_virt->smt_mib_get.mac_ma_unitdata_available;
734 bp->stats.mac_hardware_present = bp->cmd_rsp_virt->smt_mib_get.mac_hardware_present;
735 bp->stats.mac_ma_unitdata_enable = bp->cmd_rsp_virt->smt_mib_get.mac_ma_unitdata_enable;
736 bp->stats.path_tvx_lower_bound = bp->cmd_rsp_virt->smt_mib_get.path_tvx_lower_bound;
737 bp->stats.path_t_max_lower_bound = bp->cmd_rsp_virt->smt_mib_get.path_t_max_lower_bound;
738 bp->stats.path_max_t_req = bp->cmd_rsp_virt->smt_mib_get.path_max_t_req;
739 memcpy(bp->stats.path_configuration, &bp->cmd_rsp_virt->smt_mib_get.path_configuration, sizeof(bp->cmd_rsp_virt->smt_mib_get.path_configuration));
740 bp->stats.port_my_type[0] = bp->cmd_rsp_virt->smt_mib_get.port_my_type[0];
741 bp->stats.port_my_type[1] = bp->cmd_rsp_virt->smt_mib_get.port_my_type[1];
742 bp->stats.port_neighbor_type[0] = bp->cmd_rsp_virt->smt_mib_get.port_neighbor_type[0];
743 bp->stats.port_neighbor_type[1] = bp->cmd_rsp_virt->smt_mib_get.port_neighbor_type[1];
744 bp->stats.port_connection_policies[0] = bp->cmd_rsp_virt->smt_mib_get.port_connection_policies[0];
745 bp->stats.port_connection_policies[1] = bp->cmd_rsp_virt->smt_mib_get.port_connection_policies[1];
746 bp->stats.port_mac_indicated[0] = bp->cmd_rsp_virt->smt_mib_get.port_mac_indicated[0];
747 bp->stats.port_mac_indicated[1] = bp->cmd_rsp_virt->smt_mib_get.port_mac_indicated[1];
748 bp->stats.port_current_path[0] = bp->cmd_rsp_virt->smt_mib_get.port_current_path[0];
749 bp->stats.port_current_path[1] = bp->cmd_rsp_virt->smt_mib_get.port_current_path[1];
750 memcpy(&bp->stats.port_requested_paths[0 * 3], &bp->cmd_rsp_virt->smt_mib_get.port_requested_paths[0], 3);
751 memcpy(&bp->stats.port_requested_paths[1 * 3], &bp->cmd_rsp_virt->smt_mib_get.port_requested_paths[1], 3);
752 bp->stats.port_mac_placement[0] = bp->cmd_rsp_virt->smt_mib_get.port_mac_placement[0];
753 bp->stats.port_mac_placement[1] = bp->cmd_rsp_virt->smt_mib_get.port_mac_placement[1];
754 bp->stats.port_available_paths[0] = bp->cmd_rsp_virt->smt_mib_get.port_available_paths[0];
755 bp->stats.port_available_paths[1] = bp->cmd_rsp_virt->smt_mib_get.port_available_paths[1];
756 bp->stats.port_pmd_class[0] = bp->cmd_rsp_virt->smt_mib_get.port_pmd_class[0];
757 bp->stats.port_pmd_class[1] = bp->cmd_rsp_virt->smt_mib_get.port_pmd_class[1];
758 bp->stats.port_connection_capabilities[0] = bp->cmd_rsp_virt->smt_mib_get.port_connection_capabilities[0];
759 bp->stats.port_connection_capabilities[1] = bp->cmd_rsp_virt->smt_mib_get.port_connection_capabilities[1];
760 bp->stats.port_bs_flag[0] = bp->cmd_rsp_virt->smt_mib_get.port_bs_flag[0];
761 bp->stats.port_bs_flag[1] = bp->cmd_rsp_virt->smt_mib_get.port_bs_flag[1];
762 bp->stats.port_ler_estimate[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_estimate[0];
763 bp->stats.port_ler_estimate[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_estimate[1];
764 bp->stats.port_ler_cutoff[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_cutoff[0];
765 bp->stats.port_ler_cutoff[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_cutoff[1];
766 bp->stats.port_ler_alarm[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_alarm[0];
767 bp->stats.port_ler_alarm[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_alarm[1];
768 bp->stats.port_connect_state[0] = bp->cmd_rsp_virt->smt_mib_get.port_connect_state[0];
769 bp->stats.port_connect_state[1] = bp->cmd_rsp_virt->smt_mib_get.port_connect_state[1];
770 bp->stats.port_pcm_state[0] = bp->cmd_rsp_virt->smt_mib_get.port_pcm_state[0];
771 bp->stats.port_pcm_state[1] = bp->cmd_rsp_virt->smt_mib_get.port_pcm_state[1];
772 bp->stats.port_pc_withhold[0] = bp->cmd_rsp_virt->smt_mib_get.port_pc_withhold[0];
773 bp->stats.port_pc_withhold[1] = bp->cmd_rsp_virt->smt_mib_get.port_pc_withhold[1];
774 bp->stats.port_ler_flag[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_flag[0];
775 bp->stats.port_ler_flag[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_flag[1];
776 bp->stats.port_hardware_present[0] = bp->cmd_rsp_virt->smt_mib_get.port_hardware_present[0];
777 bp->stats.port_hardware_present[1] = bp->cmd_rsp_virt->smt_mib_get.port_hardware_present[1];
778
779
780
781
782 bp->stats.mac_frame_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.frame_cnt.ls;
783 bp->stats.mac_copied_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.copied_cnt.ls;
784 bp->stats.mac_transmit_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.transmit_cnt.ls;
785 bp->stats.mac_error_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.error_cnt.ls;
786 bp->stats.mac_lost_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.lost_cnt.ls;
787 bp->stats.port_lct_fail_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.lct_rejects[0].ls;
788 bp->stats.port_lct_fail_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.lct_rejects[1].ls;
789 bp->stats.port_lem_reject_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.lem_rejects[0].ls;
790 bp->stats.port_lem_reject_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.lem_rejects[1].ls;
791 bp->stats.port_lem_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.link_errors[0].ls;
792 bp->stats.port_lem_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.link_errors[1].ls;
793
794#endif
795 return (struct net_device_stats *)&bp->os.MacStat;
796}
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
836static void skfp_ctl_set_multicast_list(struct net_device *dev)
837{
838 struct s_smc *smc = netdev_priv(dev);
839 skfddi_priv *bp = &smc->os;
840 unsigned long Flags;
841
842 spin_lock_irqsave(&bp->DriverLock, Flags);
843 skfp_ctl_set_multicast_list_wo_lock(dev);
844 spin_unlock_irqrestore(&bp->DriverLock, Flags);
845}
846
847
848
849static void skfp_ctl_set_multicast_list_wo_lock(struct net_device *dev)
850{
851 struct s_smc *smc = netdev_priv(dev);
852 struct netdev_hw_addr *ha;
853
854
855 if (dev->flags & IFF_PROMISC) {
856 mac_drv_rx_mode(smc, RX_ENABLE_PROMISC);
857 pr_debug("PROMISCUOUS MODE ENABLED\n");
858 }
859
860 else {
861 mac_drv_rx_mode(smc, RX_DISABLE_PROMISC);
862 pr_debug("PROMISCUOUS MODE DISABLED\n");
863
864
865 mac_clear_multicast(smc);
866 mac_drv_rx_mode(smc, RX_DISABLE_ALLMULTI);
867
868 if (dev->flags & IFF_ALLMULTI) {
869 mac_drv_rx_mode(smc, RX_ENABLE_ALLMULTI);
870 pr_debug("ENABLE ALL MC ADDRESSES\n");
871 } else if (!netdev_mc_empty(dev)) {
872 if (netdev_mc_count(dev) <= FPMAX_MULTICAST) {
873
874
875
876 netdev_for_each_mc_addr(ha, dev) {
877 mac_add_multicast(smc,
878 (struct fddi_addr *)ha->addr,
879 1);
880
881 pr_debug("ENABLE MC ADDRESS: %pMF\n",
882 ha->addr);
883 }
884
885 } else {
886
887 mac_drv_rx_mode(smc, RX_ENABLE_ALLMULTI);
888 pr_debug("ENABLE ALL MC ADDRESSES\n");
889 }
890 } else {
891
892 pr_debug("DISABLE ALL MC ADDRESSES\n");
893 }
894
895
896 mac_update_multicast(smc);
897 }
898}
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920static int skfp_ctl_set_mac_address(struct net_device *dev, void *addr)
921{
922 struct s_smc *smc = netdev_priv(dev);
923 struct sockaddr *p_sockaddr = (struct sockaddr *) addr;
924 skfddi_priv *bp = &smc->os;
925 unsigned long Flags;
926
927
928 memcpy(dev->dev_addr, p_sockaddr->sa_data, FDDI_K_ALEN);
929 spin_lock_irqsave(&bp->DriverLock, Flags);
930 ResetAdapter(smc);
931 spin_unlock_irqrestore(&bp->DriverLock, Flags);
932
933 return 0;
934}
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
960static int skfp_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
961{
962 struct s_smc *smc = netdev_priv(dev);
963 skfddi_priv *lp = &smc->os;
964 struct s_skfp_ioctl ioc;
965 int status = 0;
966
967 if (copy_from_user(&ioc, rq->ifr_data, sizeof(struct s_skfp_ioctl)))
968 return -EFAULT;
969
970 switch (ioc.cmd) {
971 case SKFP_GET_STATS:
972 ioc.len = sizeof(lp->MacStat);
973 status = copy_to_user(ioc.data, skfp_ctl_get_stats(dev), ioc.len)
974 ? -EFAULT : 0;
975 break;
976 case SKFP_CLR_STATS:
977 if (!capable(CAP_NET_ADMIN)) {
978 status = -EPERM;
979 } else {
980 memset(&lp->MacStat, 0, sizeof(lp->MacStat));
981 }
982 break;
983 default:
984 printk("ioctl for %s: unknown cmd: %04x\n", dev->name, ioc.cmd);
985 status = -EOPNOTSUPP;
986
987 }
988
989 return status;
990}
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
1040static netdev_tx_t skfp_send_pkt(struct sk_buff *skb,
1041 struct net_device *dev)
1042{
1043 struct s_smc *smc = netdev_priv(dev);
1044 skfddi_priv *bp = &smc->os;
1045
1046 pr_debug("skfp_send_pkt\n");
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057 if (!(skb->len >= FDDI_K_LLC_ZLEN && skb->len <= FDDI_K_LLC_LEN)) {
1058 bp->MacStat.gen.tx_errors++;
1059
1060 netif_start_queue(dev);
1061 dev_kfree_skb(skb);
1062 return NETDEV_TX_OK;
1063 }
1064 if (bp->QueueSkb == 0) {
1065
1066 netif_stop_queue(dev);
1067 return NETDEV_TX_BUSY;
1068 }
1069 bp->QueueSkb--;
1070 skb_queue_tail(&bp->SendSkbQueue, skb);
1071 send_queued_packets(netdev_priv(dev));
1072 if (bp->QueueSkb == 0) {
1073 netif_stop_queue(dev);
1074 }
1075 return NETDEV_TX_OK;
1076
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
1103static void send_queued_packets(struct s_smc *smc)
1104{
1105 skfddi_priv *bp = &smc->os;
1106 struct sk_buff *skb;
1107 unsigned char fc;
1108 int queue;
1109 struct s_smt_fp_txd *txd;
1110 dma_addr_t dma_address;
1111 unsigned long Flags;
1112
1113 int frame_status;
1114
1115 pr_debug("send queued packets\n");
1116 for (;;) {
1117
1118 skb = skb_dequeue(&bp->SendSkbQueue);
1119
1120 if (!skb) {
1121 pr_debug("queue empty\n");
1122 return;
1123 }
1124
1125 spin_lock_irqsave(&bp->DriverLock, Flags);
1126 fc = skb->data[0];
1127 queue = (fc & FC_SYNC_BIT) ? QUEUE_S : QUEUE_A0;
1128#ifdef ESS
1129
1130
1131 if ((fc & ~(FC_SYNC_BIT | FC_LLC_PRIOR)) == FC_ASYNC_LLC) {
1132
1133 if (!smc->ess.sync_bw_available)
1134 fc &= ~FC_SYNC_BIT;
1135
1136 else {
1137
1138 if (smc->mib.fddiESSSynchTxMode) {
1139
1140 fc |= FC_SYNC_BIT;
1141 }
1142 }
1143 }
1144#endif
1145 frame_status = hwm_tx_init(smc, fc, 1, skb->len, queue);
1146
1147 if ((frame_status & (LOC_TX | LAN_TX)) == 0) {
1148
1149
1150 if ((frame_status & RING_DOWN) != 0) {
1151
1152 pr_debug("Tx attempt while ring down.\n");
1153 } else if ((frame_status & OUT_OF_TXD) != 0) {
1154 pr_debug("%s: out of TXDs.\n", bp->dev->name);
1155 } else {
1156 pr_debug("%s: out of transmit resources",
1157 bp->dev->name);
1158 }
1159
1160
1161
1162 skb_queue_head(&bp->SendSkbQueue, skb);
1163 spin_unlock_irqrestore(&bp->DriverLock, Flags);
1164 return;
1165
1166 }
1167
1168 bp->QueueSkb++;
1169
1170
1171 CheckSourceAddress(skb->data, smc->hw.fddi_canon_addr.a);
1172
1173 txd = (struct s_smt_fp_txd *) HWM_GET_CURR_TXD(smc, queue);
1174
1175 dma_address = pci_map_single(&bp->pdev, skb->data,
1176 skb->len, PCI_DMA_TODEVICE);
1177 if (frame_status & LAN_TX) {
1178 txd->txd_os.skb = skb;
1179 txd->txd_os.dma_addr = dma_address;
1180 }
1181 hwm_tx_frag(smc, skb->data, dma_address, skb->len,
1182 frame_status | FIRST_FRAG | LAST_FRAG | EN_IRQ_EOF);
1183
1184 if (!(frame_status & LAN_TX)) {
1185 pci_unmap_single(&bp->pdev, dma_address,
1186 skb->len, PCI_DMA_TODEVICE);
1187 dev_kfree_skb_irq(skb);
1188 }
1189 spin_unlock_irqrestore(&bp->DriverLock, Flags);
1190 }
1191
1192 return;
1193
1194}
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204static void CheckSourceAddress(unsigned char *frame, unsigned char *hw_addr)
1205{
1206 unsigned char SRBit;
1207
1208 if ((((unsigned long) frame[1 + 6]) & ~0x01) != 0)
1209
1210 return;
1211 if ((unsigned short) frame[1 + 10] != 0)
1212 return;
1213 SRBit = frame[1 + 6] & 0x01;
1214 memcpy(&frame[1 + 6], hw_addr, ETH_ALEN);
1215 frame[8] |= SRBit;
1216}
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230static void ResetAdapter(struct s_smc *smc)
1231{
1232
1233 pr_debug("[fddi: ResetAdapter]\n");
1234
1235
1236
1237 card_stop(smc);
1238
1239
1240 mac_drv_clear_tx_queue(smc);
1241 mac_drv_clear_rx_queue(smc);
1242
1243
1244
1245 smt_reset_defaults(smc, 1);
1246
1247 init_smt(smc, (smc->os.dev)->dev_addr);
1248
1249 smt_online(smc, 1);
1250 STI_FBI();
1251
1252
1253 skfp_ctl_set_multicast_list_wo_lock(smc->os.dev);
1254}
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275void llc_restart_tx(struct s_smc *smc)
1276{
1277 skfddi_priv *bp = &smc->os;
1278
1279 pr_debug("[llc_restart_tx]\n");
1280
1281
1282 spin_unlock(&bp->DriverLock);
1283 send_queued_packets(smc);
1284 spin_lock(&bp->DriverLock);
1285 netif_start_queue(bp->dev);
1286
1287}
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305void *mac_drv_get_space(struct s_smc *smc, unsigned int size)
1306{
1307 void *virt;
1308
1309 pr_debug("mac_drv_get_space (%d bytes), ", size);
1310 virt = (void *) (smc->os.SharedMemAddr + smc->os.SharedMemHeap);
1311
1312 if ((smc->os.SharedMemHeap + size) > smc->os.SharedMemSize) {
1313 printk("Unexpected SMT memory size requested: %d\n", size);
1314 return NULL;
1315 }
1316 smc->os.SharedMemHeap += size;
1317
1318 pr_debug("mac_drv_get_space end\n");
1319 pr_debug("virt addr: %lx\n", (ulong) virt);
1320 pr_debug("bus addr: %lx\n", (ulong)
1321 (smc->os.SharedMemDMA +
1322 ((char *) virt - (char *)smc->os.SharedMemAddr)));
1323 return virt;
1324}
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345void *mac_drv_get_desc_mem(struct s_smc *smc, unsigned int size)
1346{
1347
1348 char *virt;
1349
1350 pr_debug("mac_drv_get_desc_mem\n");
1351
1352
1353
1354 virt = mac_drv_get_space(smc, size);
1355
1356 size = (u_int) (16 - (((unsigned long) virt) & 15UL));
1357 size = size % 16;
1358
1359 pr_debug("Allocate %u bytes alignment gap ", size);
1360 pr_debug("for descriptor memory.\n");
1361
1362 if (!mac_drv_get_space(smc, size)) {
1363 printk("fddi: Unable to align descriptor memory.\n");
1364 return NULL;
1365 }
1366 return virt + size;
1367}
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383unsigned long mac_drv_virt2phys(struct s_smc *smc, void *virt)
1384{
1385 return smc->os.SharedMemDMA +
1386 ((char *) virt - (char *)smc->os.SharedMemAddr);
1387}
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
1418u_long dma_master(struct s_smc * smc, void *virt, int len, int flag)
1419{
1420 return smc->os.SharedMemDMA +
1421 ((char *) virt - (char *)smc->os.SharedMemAddr);
1422}
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446void dma_complete(struct s_smc *smc, volatile union s_fp_descr *descr, int flag)
1447{
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460 if (flag & DMA_WR) {
1461 skfddi_priv *bp = &smc->os;
1462 volatile struct s_smt_fp_rxd *r = &descr->r;
1463
1464
1465 if (r->rxd_os.skb && r->rxd_os.dma_addr) {
1466 int MaxFrameSize = bp->MaxFrameSize;
1467
1468 pci_unmap_single(&bp->pdev, r->rxd_os.dma_addr,
1469 MaxFrameSize, PCI_DMA_FROMDEVICE);
1470 r->rxd_os.dma_addr = 0;
1471 }
1472 }
1473}
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490void mac_drv_tx_complete(struct s_smc *smc, volatile struct s_smt_fp_txd *txd)
1491{
1492 struct sk_buff *skb;
1493
1494 pr_debug("entering mac_drv_tx_complete\n");
1495
1496
1497 if (!(skb = txd->txd_os.skb)) {
1498 pr_debug("TXD with no skb assigned.\n");
1499 return;
1500 }
1501 txd->txd_os.skb = NULL;
1502
1503
1504 pci_unmap_single(&smc->os.pdev, txd->txd_os.dma_addr,
1505 skb->len, PCI_DMA_TODEVICE);
1506 txd->txd_os.dma_addr = 0;
1507
1508 smc->os.MacStat.gen.tx_packets++;
1509 smc->os.MacStat.gen.tx_bytes+=skb->len;
1510
1511
1512 dev_kfree_skb_irq(skb);
1513
1514 pr_debug("leaving mac_drv_tx_complete\n");
1515}
1516
1517
1518
1519
1520
1521
1522
1523#ifdef DUMPPACKETS
1524void dump_data(unsigned char *Data, int length)
1525{
1526 int i, j;
1527 unsigned char s[255], sh[10];
1528 if (length > 64) {
1529 length = 64;
1530 }
1531 printk(KERN_INFO "---Packet start---\n");
1532 for (i = 0, j = 0; i < length / 8; i++, j += 8)
1533 printk(KERN_INFO "%02x %02x %02x %02x %02x %02x %02x %02x\n",
1534 Data[j + 0], Data[j + 1], Data[j + 2], Data[j + 3],
1535 Data[j + 4], Data[j + 5], Data[j + 6], Data[j + 7]);
1536 strcpy(s, "");
1537 for (i = 0; i < length % 8; i++) {
1538 sprintf(sh, "%02x ", Data[j + i]);
1539 strcat(s, sh);
1540 }
1541 printk(KERN_INFO "%s\n", s);
1542 printk(KERN_INFO "------------------\n");
1543}
1544#else
1545#define dump_data(data,len)
1546#endif
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572void mac_drv_rx_complete(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
1573 int frag_count, int len)
1574{
1575 skfddi_priv *bp = &smc->os;
1576 struct sk_buff *skb;
1577 unsigned char *virt, *cp;
1578 unsigned short ri;
1579 u_int RifLength;
1580
1581 pr_debug("entering mac_drv_rx_complete (len=%d)\n", len);
1582 if (frag_count != 1) {
1583
1584 printk("fddi: Multi-fragment receive!\n");
1585 goto RequeueRxd;
1586
1587 }
1588 skb = rxd->rxd_os.skb;
1589 if (!skb) {
1590 pr_debug("No skb in rxd\n");
1591 smc->os.MacStat.gen.rx_errors++;
1592 goto RequeueRxd;
1593 }
1594 virt = skb->data;
1595
1596
1597
1598 dump_data(skb->data, len);
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615 if ((virt[1 + 6] & FDDI_RII) == 0)
1616 RifLength = 0;
1617 else {
1618 int n;
1619
1620 pr_debug("RIF found\n");
1621
1622 cp = virt + FDDI_MAC_HDR_LEN;
1623
1624 ri = ntohs(*((__be16 *) cp));
1625 RifLength = ri & FDDI_RCF_LEN_MASK;
1626 if (len < (int) (FDDI_MAC_HDR_LEN + RifLength)) {
1627 printk("fddi: Invalid RIF.\n");
1628 goto RequeueRxd;
1629
1630 }
1631 virt[1 + 6] &= ~FDDI_RII;
1632
1633
1634 virt = cp + RifLength;
1635 for (n = FDDI_MAC_HDR_LEN; n; n--)
1636 *--virt = *--cp;
1637
1638 skb_pull(skb, RifLength);
1639 len -= RifLength;
1640 RifLength = 0;
1641 }
1642
1643
1644 smc->os.MacStat.gen.rx_packets++;
1645
1646 smc->os.MacStat.gen.rx_bytes+=len;
1647
1648
1649 if (virt[1] & 0x01) {
1650
1651 smc->os.MacStat.gen.multicast++;
1652 }
1653
1654
1655 rxd->rxd_os.skb = NULL;
1656 skb_trim(skb, len);
1657 skb->protocol = fddi_type_trans(skb, bp->dev);
1658
1659 netif_rx(skb);
1660
1661 HWM_RX_CHECK(smc, RX_LOW_WATERMARK);
1662 return;
1663
1664 RequeueRxd:
1665 pr_debug("Rx: re-queue RXD.\n");
1666 mac_drv_requeue_rxd(smc, rxd, frag_count);
1667 smc->os.MacStat.gen.rx_errors++;
1668
1669
1670}
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691void mac_drv_requeue_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
1692 int frag_count)
1693{
1694 volatile struct s_smt_fp_rxd *next_rxd;
1695 volatile struct s_smt_fp_rxd *src_rxd;
1696 struct sk_buff *skb;
1697 int MaxFrameSize;
1698 unsigned char *v_addr;
1699 dma_addr_t b_addr;
1700
1701 if (frag_count != 1)
1702
1703 printk("fddi: Multi-fragment requeue!\n");
1704
1705 MaxFrameSize = smc->os.MaxFrameSize;
1706 src_rxd = rxd;
1707 for (; frag_count > 0; frag_count--) {
1708 next_rxd = src_rxd->rxd_next;
1709 rxd = HWM_GET_CURR_RXD(smc);
1710
1711 skb = src_rxd->rxd_os.skb;
1712 if (skb == NULL) {
1713
1714 pr_debug("Requeue with no skb in rxd!\n");
1715 skb = alloc_skb(MaxFrameSize + 3, GFP_ATOMIC);
1716 if (skb) {
1717
1718 rxd->rxd_os.skb = skb;
1719 skb_reserve(skb, 3);
1720 skb_put(skb, MaxFrameSize);
1721 v_addr = skb->data;
1722 b_addr = pci_map_single(&smc->os.pdev,
1723 v_addr,
1724 MaxFrameSize,
1725 PCI_DMA_FROMDEVICE);
1726 rxd->rxd_os.dma_addr = b_addr;
1727 } else {
1728
1729 pr_debug("Queueing invalid buffer!\n");
1730 rxd->rxd_os.skb = NULL;
1731 v_addr = smc->os.LocalRxBuffer;
1732 b_addr = smc->os.LocalRxBufferDMA;
1733 }
1734 } else {
1735
1736 rxd->rxd_os.skb = skb;
1737 v_addr = skb->data;
1738 b_addr = pci_map_single(&smc->os.pdev,
1739 v_addr,
1740 MaxFrameSize,
1741 PCI_DMA_FROMDEVICE);
1742 rxd->rxd_os.dma_addr = b_addr;
1743 }
1744 hwm_rx_frag(smc, v_addr, b_addr, MaxFrameSize,
1745 FIRST_FRAG | LAST_FRAG);
1746
1747 src_rxd = next_rxd;
1748 }
1749}
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768void mac_drv_fill_rxd(struct s_smc *smc)
1769{
1770 int MaxFrameSize;
1771 unsigned char *v_addr;
1772 unsigned long b_addr;
1773 struct sk_buff *skb;
1774 volatile struct s_smt_fp_rxd *rxd;
1775
1776 pr_debug("entering mac_drv_fill_rxd\n");
1777
1778
1779
1780
1781 MaxFrameSize = smc->os.MaxFrameSize;
1782
1783 while (HWM_GET_RX_FREE(smc) > 0) {
1784 pr_debug(".\n");
1785
1786 rxd = HWM_GET_CURR_RXD(smc);
1787 skb = alloc_skb(MaxFrameSize + 3, GFP_ATOMIC);
1788 if (skb) {
1789
1790 skb_reserve(skb, 3);
1791 skb_put(skb, MaxFrameSize);
1792 v_addr = skb->data;
1793 b_addr = pci_map_single(&smc->os.pdev,
1794 v_addr,
1795 MaxFrameSize,
1796 PCI_DMA_FROMDEVICE);
1797 rxd->rxd_os.dma_addr = b_addr;
1798 } else {
1799
1800
1801
1802
1803
1804 pr_debug("Queueing invalid buffer!\n");
1805 v_addr = smc->os.LocalRxBuffer;
1806 b_addr = smc->os.LocalRxBufferDMA;
1807 }
1808
1809 rxd->rxd_os.skb = skb;
1810
1811
1812 hwm_rx_frag(smc, v_addr, b_addr, MaxFrameSize,
1813 FIRST_FRAG | LAST_FRAG);
1814 }
1815 pr_debug("leaving mac_drv_fill_rxd\n");
1816}
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835void mac_drv_clear_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
1836 int frag_count)
1837{
1838
1839 struct sk_buff *skb;
1840
1841 pr_debug("entering mac_drv_clear_rxd\n");
1842
1843 if (frag_count != 1)
1844
1845 printk("fddi: Multi-fragment clear!\n");
1846
1847 for (; frag_count > 0; frag_count--) {
1848 skb = rxd->rxd_os.skb;
1849 if (skb != NULL) {
1850 skfddi_priv *bp = &smc->os;
1851 int MaxFrameSize = bp->MaxFrameSize;
1852
1853 pci_unmap_single(&bp->pdev, rxd->rxd_os.dma_addr,
1854 MaxFrameSize, PCI_DMA_FROMDEVICE);
1855
1856 dev_kfree_skb(skb);
1857 rxd->rxd_os.skb = NULL;
1858 }
1859 rxd = rxd->rxd_next;
1860
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
1892int mac_drv_rx_init(struct s_smc *smc, int len, int fc,
1893 char *look_ahead, int la_len)
1894{
1895 struct sk_buff *skb;
1896
1897 pr_debug("entering mac_drv_rx_init(len=%d)\n", len);
1898
1899
1900
1901 if (len != la_len || len < FDDI_MAC_HDR_LEN || !look_ahead) {
1902 pr_debug("fddi: Discard invalid local SMT frame\n");
1903 pr_debug(" len=%d, la_len=%d, (ULONG) look_ahead=%08lXh.\n",
1904 len, la_len, (unsigned long) look_ahead);
1905 return 0;
1906 }
1907 skb = alloc_skb(len + 3, GFP_ATOMIC);
1908 if (!skb) {
1909 pr_debug("fddi: Local SMT: skb memory exhausted.\n");
1910 return 0;
1911 }
1912 skb_reserve(skb, 3);
1913 skb_put(skb, len);
1914 skb_copy_to_linear_data(skb, look_ahead, len);
1915
1916
1917 skb->protocol = fddi_type_trans(skb, smc->os.dev);
1918 netif_rx(skb);
1919
1920 return 0;
1921}
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939void smt_timer_poll(struct s_smc *smc)
1940{
1941}
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957void ring_status_indication(struct s_smc *smc, u_long status)
1958{
1959 pr_debug("ring_status_indication( ");
1960 if (status & RS_RES15)
1961 pr_debug("RS_RES15 ");
1962 if (status & RS_HARDERROR)
1963 pr_debug("RS_HARDERROR ");
1964 if (status & RS_SOFTERROR)
1965 pr_debug("RS_SOFTERROR ");
1966 if (status & RS_BEACON)
1967 pr_debug("RS_BEACON ");
1968 if (status & RS_PATHTEST)
1969 pr_debug("RS_PATHTEST ");
1970 if (status & RS_SELFTEST)
1971 pr_debug("RS_SELFTEST ");
1972 if (status & RS_RES9)
1973 pr_debug("RS_RES9 ");
1974 if (status & RS_DISCONNECT)
1975 pr_debug("RS_DISCONNECT ");
1976 if (status & RS_RES7)
1977 pr_debug("RS_RES7 ");
1978 if (status & RS_DUPADDR)
1979 pr_debug("RS_DUPADDR ");
1980 if (status & RS_NORINGOP)
1981 pr_debug("RS_NORINGOP ");
1982 if (status & RS_VERSION)
1983 pr_debug("RS_VERSION ");
1984 if (status & RS_STUCKBYPASSS)
1985 pr_debug("RS_STUCKBYPASSS ");
1986 if (status & RS_EVENT)
1987 pr_debug("RS_EVENT ");
1988 if (status & RS_RINGOPCHANGE)
1989 pr_debug("RS_RINGOPCHANGE ");
1990 if (status & RS_RES0)
1991 pr_debug("RS_RES0 ");
1992 pr_debug("]\n");
1993}
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011unsigned long smt_get_time(void)
2012{
2013 return jiffies;
2014}
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031void smt_stat_counter(struct s_smc *smc, int stat)
2032{
2033
2034
2035 pr_debug("smt_stat_counter\n");
2036 switch (stat) {
2037 case 0:
2038 pr_debug("Ring operational change.\n");
2039 break;
2040 case 1:
2041 pr_debug("Receive fifo overflow.\n");
2042 smc->os.MacStat.gen.rx_errors++;
2043 break;
2044 default:
2045 pr_debug("Unknown status (%d).\n", stat);
2046 break;
2047 }
2048}
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067void cfm_state_change(struct s_smc *smc, int c_state)
2068{
2069#ifdef DRIVERDEBUG
2070 char *s;
2071
2072 switch (c_state) {
2073 case SC0_ISOLATED:
2074 s = "SC0_ISOLATED";
2075 break;
2076 case SC1_WRAP_A:
2077 s = "SC1_WRAP_A";
2078 break;
2079 case SC2_WRAP_B:
2080 s = "SC2_WRAP_B";
2081 break;
2082 case SC4_THRU_A:
2083 s = "SC4_THRU_A";
2084 break;
2085 case SC5_THRU_B:
2086 s = "SC5_THRU_B";
2087 break;
2088 case SC7_WRAP_S:
2089 s = "SC7_WRAP_S";
2090 break;
2091 case SC9_C_WRAP_A:
2092 s = "SC9_C_WRAP_A";
2093 break;
2094 case SC10_C_WRAP_B:
2095 s = "SC10_C_WRAP_B";
2096 break;
2097 case SC11_C_WRAP_S:
2098 s = "SC11_C_WRAP_S";
2099 break;
2100 default:
2101 pr_debug("cfm_state_change: unknown %d\n", c_state);
2102 return;
2103 }
2104 pr_debug("cfm_state_change: %s\n", s);
2105#endif
2106}
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125void ecm_state_change(struct s_smc *smc, int e_state)
2126{
2127#ifdef DRIVERDEBUG
2128 char *s;
2129
2130 switch (e_state) {
2131 case EC0_OUT:
2132 s = "EC0_OUT";
2133 break;
2134 case EC1_IN:
2135 s = "EC1_IN";
2136 break;
2137 case EC2_TRACE:
2138 s = "EC2_TRACE";
2139 break;
2140 case EC3_LEAVE:
2141 s = "EC3_LEAVE";
2142 break;
2143 case EC4_PATH_TEST:
2144 s = "EC4_PATH_TEST";
2145 break;
2146 case EC5_INSERT:
2147 s = "EC5_INSERT";
2148 break;
2149 case EC6_CHECK:
2150 s = "EC6_CHECK";
2151 break;
2152 case EC7_DEINSERT:
2153 s = "EC7_DEINSERT";
2154 break;
2155 default:
2156 s = "unknown";
2157 break;
2158 }
2159 pr_debug("ecm_state_change: %s\n", s);
2160#endif
2161}
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180void rmt_state_change(struct s_smc *smc, int r_state)
2181{
2182#ifdef DRIVERDEBUG
2183 char *s;
2184
2185 switch (r_state) {
2186 case RM0_ISOLATED:
2187 s = "RM0_ISOLATED";
2188 break;
2189 case RM1_NON_OP:
2190 s = "RM1_NON_OP - not operational";
2191 break;
2192 case RM2_RING_OP:
2193 s = "RM2_RING_OP - ring operational";
2194 break;
2195 case RM3_DETECT:
2196 s = "RM3_DETECT - detect dupl addresses";
2197 break;
2198 case RM4_NON_OP_DUP:
2199 s = "RM4_NON_OP_DUP - dupl. addr detected";
2200 break;
2201 case RM5_RING_OP_DUP:
2202 s = "RM5_RING_OP_DUP - ring oper. with dupl. addr";
2203 break;
2204 case RM6_DIRECTED:
2205 s = "RM6_DIRECTED - sending directed beacons";
2206 break;
2207 case RM7_TRACE:
2208 s = "RM7_TRACE - trace initiated";
2209 break;
2210 default:
2211 s = "unknown";
2212 break;
2213 }
2214 pr_debug("[rmt_state_change: %s]\n", s);
2215#endif
2216}
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232void drv_reset_indication(struct s_smc *smc)
2233{
2234 pr_debug("entering drv_reset_indication\n");
2235
2236 smc->os.ResetRequested = TRUE;
2237
2238}
2239
2240static struct pci_driver skfddi_pci_driver = {
2241 .name = "skfddi",
2242 .id_table = skfddi_pci_tbl,
2243 .probe = skfp_init_one,
2244 .remove = skfp_remove_one,
2245};
2246
2247module_pci_driver(skfddi_pci_driver);
2248