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authorFrancois Romieu <romieu@fr.zoreil.com>2007-09-17 20:13:55 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 19:51:33 -0400
commit1202d6ff356cc66dc8d2b85546eb4f187f9e1f25 (patch)
tree158ddb9c96756ecc60a205ebc7243ee9c3e2e05b /drivers
parent6b2f9cb64db2d2460da17900bf54266030cc24f1 (diff)
[IPG]: add IP1000A driver to kernel tree
Signed-off-by: Jesse Huang <jesse@icplus.com.tw> Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/Kconfig9
-rw-r--r--drivers/net/Makefile1
-rw-r--r--drivers/net/ipg.c2326
-rw-r--r--drivers/net/ipg.h856
4 files changed, 3192 insertions, 0 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 76db0bc9452d..63ab05b5a87a 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -165,6 +165,15 @@ config NET_SB1000
165 165
166 If you don't have this card, of course say N. 166 If you don't have this card, of course say N.
167 167
168config IP1000
169 tristate "IP1000 Gigabit Ethernet support"
170 depends on PCI && EXPERIMENTAL
171 ---help---
172 This driver supports IP1000 gigabit Ethernet cards.
173
174 To compile this driver as a module, choose M here: the module
175 will be called ipg. This is recommended.
176
168source "drivers/net/arcnet/Kconfig" 177source "drivers/net/arcnet/Kconfig"
169 178
170source "drivers/net/phy/Kconfig" 179source "drivers/net/phy/Kconfig"
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index c23ffdbe2599..2098647080a0 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_E1000E) += e1000e/
7obj-$(CONFIG_IBM_EMAC) += ibm_emac/ 7obj-$(CONFIG_IBM_EMAC) += ibm_emac/
8obj-$(CONFIG_IXGBE) += ixgbe/ 8obj-$(CONFIG_IXGBE) += ixgbe/
9obj-$(CONFIG_IXGB) += ixgb/ 9obj-$(CONFIG_IXGB) += ixgb/
10obj-$(CONFIG_IP1000) += ipg.o
10obj-$(CONFIG_CHELSIO_T1) += chelsio/ 11obj-$(CONFIG_CHELSIO_T1) += chelsio/
11obj-$(CONFIG_CHELSIO_T3) += cxgb3/ 12obj-$(CONFIG_CHELSIO_T3) += cxgb3/
12obj-$(CONFIG_EHEA) += ehea/ 13obj-$(CONFIG_EHEA) += ehea/
diff --git a/drivers/net/ipg.c b/drivers/net/ipg.c
new file mode 100644
index 000000000000..dfdc96fcadec
--- /dev/null
+++ b/drivers/net/ipg.c
@@ -0,0 +1,2326 @@
1/*
2 * ipg.c: Device Driver for the IP1000 Gigabit Ethernet Adapter
3 *
4 * Copyright (C) 2003, 2007 IC Plus Corp
5 *
6 * Original Author:
7 *
8 * Craig Rich
9 * Sundance Technology, Inc.
10 * www.sundanceti.com
11 * craig_rich@sundanceti.com
12 *
13 * Current Maintainer:
14 *
15 * Sorbica Shieh.
16 * http://www.icplus.com.tw
17 * sorbica@icplus.com.tw
18 *
19 * Jesse Huang
20 * http://www.icplus.com.tw
21 * jesse@icplus.com.tw
22 */
23#include <linux/crc32.h>
24#include <linux/ethtool.h>
25#include <linux/mii.h>
26#include <linux/mutex.h>
27
28#define IPG_RX_RING_BYTES (sizeof(struct ipg_rx) * IPG_RFDLIST_LENGTH)
29#define IPG_TX_RING_BYTES (sizeof(struct ipg_tx) * IPG_TFDLIST_LENGTH)
30#define IPG_RESET_MASK \
31 (IPG_AC_GLOBAL_RESET | IPG_AC_RX_RESET | IPG_AC_TX_RESET | \
32 IPG_AC_DMA | IPG_AC_FIFO | IPG_AC_NETWORK | IPG_AC_HOST | \
33 IPG_AC_AUTO_INIT)
34
35#define ipg_w32(val32,reg) iowrite32((val32), ioaddr + (reg))
36#define ipg_w16(val16,reg) iowrite16((val16), ioaddr + (reg))
37#define ipg_w8(val8,reg) iowrite8((val8), ioaddr + (reg))
38
39#define ipg_r32(reg) ioread32(ioaddr + (reg))
40#define ipg_r16(reg) ioread16(ioaddr + (reg))
41#define ipg_r8(reg) ioread8(ioaddr + (reg))
42
43#define JUMBO_FRAME_4k_ONLY
44enum {
45 netdev_io_size = 128
46};
47
48#include "ipg.h"
49#define DRV_NAME "ipg"
50
51MODULE_AUTHOR("IC Plus Corp. 2003");
52MODULE_DESCRIPTION("IC Plus IP1000 Gigabit Ethernet Adapter Linux Driver "
53 DrvVer);
54MODULE_LICENSE("GPL");
55
56static const char *ipg_brand_name[] = {
57 "IC PLUS IP1000 1000/100/10 based NIC",
58 "Sundance Technology ST2021 based NIC",
59 "Tamarack Microelectronics TC9020/9021 based NIC",
60 "Tamarack Microelectronics TC9020/9021 based NIC",
61 "D-Link NIC",
62 "D-Link NIC IP1000A"
63};
64
65static struct pci_device_id ipg_pci_tbl[] __devinitdata = {
66 { PCI_VDEVICE(SUNDANCE, 0x1023), 0 },
67 { PCI_VDEVICE(SUNDANCE, 0x2021), 1 },
68 { PCI_VDEVICE(SUNDANCE, 0x1021), 2 },
69 { PCI_VDEVICE(DLINK, 0x9021), 3 },
70 { PCI_VDEVICE(DLINK, 0x4000), 4 },
71 { PCI_VDEVICE(DLINK, 0x4020), 5 },
72 { 0, }
73};
74
75MODULE_DEVICE_TABLE(pci, ipg_pci_tbl);
76
77static inline void __iomem *ipg_ioaddr(struct net_device *dev)
78{
79 struct ipg_nic_private *sp = netdev_priv(dev);
80 return sp->ioaddr;
81}
82
83#ifdef IPG_DEBUG
84static void ipg_dump_rfdlist(struct net_device *dev)
85{
86 struct ipg_nic_private *sp = netdev_priv(dev);
87 void __iomem *ioaddr = sp->ioaddr;
88 unsigned int i;
89 u32 offset;
90
91 IPG_DEBUG_MSG("_dump_rfdlist\n");
92
93 printk(KERN_INFO "rx_current = %2.2x\n", sp->rx_current);
94 printk(KERN_INFO "rx_dirty = %2.2x\n", sp->rx_dirty);
95 printk(KERN_INFO "RFDList start address = %16.16lx\n",
96 (unsigned long) sp->rxd_map);
97 printk(KERN_INFO "RFDListPtr register = %8.8x%8.8x\n",
98 ipg_r32(IPG_RFDLISTPTR1), ipg_r32(IPG_RFDLISTPTR0));
99
100 for (i = 0; i < IPG_RFDLIST_LENGTH; i++) {
101 offset = (u32) &sp->rxd[i].next_desc - (u32) sp->rxd;
102 printk(KERN_INFO "%2.2x %4.4x RFDNextPtr = %16.16lx\n", i,
103 offset, (unsigned long) sp->rxd[i].next_desc);
104 offset = (u32) &sp->rxd[i].rfs - (u32) sp->rxd;
105 printk(KERN_INFO "%2.2x %4.4x RFS = %16.16lx\n", i,
106 offset, (unsigned long) sp->rxd[i].rfs);
107 offset = (u32) &sp->rxd[i].frag_info - (u32) sp->rxd;
108 printk(KERN_INFO "%2.2x %4.4x frag_info = %16.16lx\n", i,
109 offset, (unsigned long) sp->rxd[i].frag_info);
110 }
111}
112
113static void ipg_dump_tfdlist(struct net_device *dev)
114{
115 struct ipg_nic_private *sp = netdev_priv(dev);
116 void __iomem *ioaddr = sp->ioaddr;
117 unsigned int i;
118 u32 offset;
119
120 IPG_DEBUG_MSG("_dump_tfdlist\n");
121
122 printk(KERN_INFO "tx_current = %2.2x\n", sp->tx_current);
123 printk(KERN_INFO "tx_dirty = %2.2x\n", sp->tx_dirty);
124 printk(KERN_INFO "TFDList start address = %16.16lx\n",
125 (unsigned long) sp->txd_map);
126 printk(KERN_INFO "TFDListPtr register = %8.8x%8.8x\n",
127 ipg_r32(IPG_TFDLISTPTR1), ipg_r32(IPG_TFDLISTPTR0));
128
129 for (i = 0; i < IPG_TFDLIST_LENGTH; i++) {
130 offset = (u32) &sp->txd[i].next_desc - (u32) sp->txd;
131 printk(KERN_INFO "%2.2x %4.4x TFDNextPtr = %16.16lx\n", i,
132 offset, (unsigned long) sp->txd[i].next_desc);
133
134 offset = (u32) &sp->txd[i].tfc - (u32) sp->txd;
135 printk(KERN_INFO "%2.2x %4.4x TFC = %16.16lx\n", i,
136 offset, (unsigned long) sp->txd[i].tfc);
137 offset = (u32) &sp->txd[i].frag_info - (u32) sp->txd;
138 printk(KERN_INFO "%2.2x %4.4x frag_info = %16.16lx\n", i,
139 offset, (unsigned long) sp->txd[i].frag_info);
140 }
141}
142#endif
143
144static void ipg_write_phy_ctl(void __iomem *ioaddr, u8 data)
145{
146 ipg_w8(IPG_PC_RSVD_MASK & data, PHY_CTRL);
147 ndelay(IPG_PC_PHYCTRLWAIT_NS);
148}
149
150static void ipg_drive_phy_ctl_low_high(void __iomem *ioaddr, u8 data)
151{
152 ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_LO | data);
153 ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_HI | data);
154}
155
156static void send_three_state(void __iomem *ioaddr, u8 phyctrlpolarity)
157{
158 phyctrlpolarity |= (IPG_PC_MGMTDATA & 0) | IPG_PC_MGMTDIR;
159
160 ipg_drive_phy_ctl_low_high(ioaddr, phyctrlpolarity);
161}
162
163static void send_end(void __iomem *ioaddr, u8 phyctrlpolarity)
164{
165 ipg_w8((IPG_PC_MGMTCLK_LO | (IPG_PC_MGMTDATA & 0) | IPG_PC_MGMTDIR |
166 phyctrlpolarity) & IPG_PC_RSVD_MASK, PHY_CTRL);
167}
168
169static u16 read_phy_bit(void __iomem * ioaddr, u8 phyctrlpolarity)
170{
171 u16 bit_data;
172
173 ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_LO | phyctrlpolarity);
174
175 bit_data = ((ipg_r8(PHY_CTRL) & IPG_PC_MGMTDATA) >> 1) & 1;
176
177 ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_HI | phyctrlpolarity);
178
179 return bit_data;
180}
181
182/*
183 * Read a register from the Physical Layer device located
184 * on the IPG NIC, using the IPG PHYCTRL register.
185 */
186static int mdio_read(struct net_device * dev, int phy_id, int phy_reg)
187{
188 void __iomem *ioaddr = ipg_ioaddr(dev);
189 /*
190 * The GMII mangement frame structure for a read is as follows:
191 *
192 * |Preamble|st|op|phyad|regad|ta| data |idle|
193 * |< 32 1s>|01|10|AAAAA|RRRRR|z0|DDDDDDDDDDDDDDDD|z |
194 *
195 * <32 1s> = 32 consecutive logic 1 values
196 * A = bit of Physical Layer device address (MSB first)
197 * R = bit of register address (MSB first)
198 * z = High impedance state
199 * D = bit of read data (MSB first)
200 *
201 * Transmission order is 'Preamble' field first, bits transmitted
202 * left to right (first to last).
203 */
204 struct {
205 u32 field;
206 unsigned int len;
207 } p[] = {
208 { GMII_PREAMBLE, 32 }, /* Preamble */
209 { GMII_ST, 2 }, /* ST */
210 { GMII_READ, 2 }, /* OP */
211 { phy_id, 5 }, /* PHYAD */
212 { phy_reg, 5 }, /* REGAD */
213 { 0x0000, 2 }, /* TA */
214 { 0x0000, 16 }, /* DATA */
215 { 0x0000, 1 } /* IDLE */
216 };
217 unsigned int i, j;
218 u8 polarity, data;
219
220 polarity = ipg_r8(PHY_CTRL);
221 polarity &= (IPG_PC_DUPLEX_POLARITY | IPG_PC_LINK_POLARITY);
222
223 /* Create the Preamble, ST, OP, PHYAD, and REGAD field. */
224 for (j = 0; j < 5; j++) {
225 for (i = 0; i < p[j].len; i++) {
226 /* For each variable length field, the MSB must be
227 * transmitted first. Rotate through the field bits,
228 * starting with the MSB, and move each bit into the
229 * the 1st (2^1) bit position (this is the bit position
230 * corresponding to the MgmtData bit of the PhyCtrl
231 * register for the IPG).
232 *
233 * Example: ST = 01;
234 *
235 * First write a '0' to bit 1 of the PhyCtrl
236 * register, then write a '1' to bit 1 of the
237 * PhyCtrl register.
238 *
239 * To do this, right shift the MSB of ST by the value:
240 * [field length - 1 - #ST bits already written]
241 * then left shift this result by 1.
242 */
243 data = (p[j].field >> (p[j].len - 1 - i)) << 1;
244 data &= IPG_PC_MGMTDATA;
245 data |= polarity | IPG_PC_MGMTDIR;
246
247 ipg_drive_phy_ctl_low_high(ioaddr, data);
248 }
249 }
250
251 send_three_state(ioaddr, polarity);
252
253 read_phy_bit(ioaddr, polarity);
254
255 /*
256 * For a read cycle, the bits for the next two fields (TA and
257 * DATA) are driven by the PHY (the IPG reads these bits).
258 */
259 for (i = 0; i < p[6].len; i++) {
260 p[6].field |=
261 (read_phy_bit(ioaddr, polarity) << (p[6].len - 1 - i));
262 }
263
264 send_three_state(ioaddr, polarity);
265 send_three_state(ioaddr, polarity);
266 send_three_state(ioaddr, polarity);
267 send_end(ioaddr, polarity);
268
269 /* Return the value of the DATA field. */
270 return p[6].field;
271}
272
273/*
274 * Write to a register from the Physical Layer device located
275 * on the IPG NIC, using the IPG PHYCTRL register.
276 */
277static void mdio_write(struct net_device *dev, int phy_id, int phy_reg, int val)
278{
279 void __iomem *ioaddr = ipg_ioaddr(dev);
280 /*
281 * The GMII mangement frame structure for a read is as follows:
282 *
283 * |Preamble|st|op|phyad|regad|ta| data |idle|
284 * |< 32 1s>|01|10|AAAAA|RRRRR|z0|DDDDDDDDDDDDDDDD|z |
285 *
286 * <32 1s> = 32 consecutive logic 1 values
287 * A = bit of Physical Layer device address (MSB first)
288 * R = bit of register address (MSB first)
289 * z = High impedance state
290 * D = bit of write data (MSB first)
291 *
292 * Transmission order is 'Preamble' field first, bits transmitted
293 * left to right (first to last).
294 */
295 struct {
296 u32 field;
297 unsigned int len;
298 } p[] = {
299 { GMII_PREAMBLE, 32 }, /* Preamble */
300 { GMII_ST, 2 }, /* ST */
301 { GMII_WRITE, 2 }, /* OP */
302 { phy_id, 5 }, /* PHYAD */
303 { phy_reg, 5 }, /* REGAD */
304 { 0x0002, 2 }, /* TA */
305 { val & 0xffff, 16 }, /* DATA */
306 { 0x0000, 1 } /* IDLE */
307 };
308 unsigned int i, j;
309 u8 polarity, data;
310
311 polarity = ipg_r8(PHY_CTRL);
312 polarity &= (IPG_PC_DUPLEX_POLARITY | IPG_PC_LINK_POLARITY);
313
314 /* Create the Preamble, ST, OP, PHYAD, and REGAD field. */
315 for (j = 0; j < 7; j++) {
316 for (i = 0; i < p[j].len; i++) {
317 /* For each variable length field, the MSB must be
318 * transmitted first. Rotate through the field bits,
319 * starting with the MSB, and move each bit into the
320 * the 1st (2^1) bit position (this is the bit position
321 * corresponding to the MgmtData bit of the PhyCtrl
322 * register for the IPG).
323 *
324 * Example: ST = 01;
325 *
326 * First write a '0' to bit 1 of the PhyCtrl
327 * register, then write a '1' to bit 1 of the
328 * PhyCtrl register.
329 *
330 * To do this, right shift the MSB of ST by the value:
331 * [field length - 1 - #ST bits already written]
332 * then left shift this result by 1.
333 */
334 data = (p[j].field >> (p[j].len - 1 - i)) << 1;
335 data &= IPG_PC_MGMTDATA;
336 data |= polarity | IPG_PC_MGMTDIR;
337
338 ipg_drive_phy_ctl_low_high(ioaddr, data);
339 }
340 }
341
342 /* The last cycle is a tri-state, so read from the PHY. */
343 for (j = 7; j < 8; j++) {
344 for (i = 0; i < p[j].len; i++) {
345 ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_LO | polarity);
346
347 p[j].field |= ((ipg_r8(PHY_CTRL) &
348 IPG_PC_MGMTDATA) >> 1) << (p[j].len - 1 - i);
349
350 ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_HI | polarity);
351 }
352 }
353}
354
355/* Set LED_Mode JES20040127EEPROM */
356static void ipg_set_led_mode(struct net_device *dev)
357{
358 struct ipg_nic_private *sp = netdev_priv(dev);
359 void __iomem *ioaddr = sp->ioaddr;
360 u32 mode;
361
362 mode = ipg_r32(ASIC_CTRL);
363 mode &= ~(IPG_AC_LED_MODE_BIT_1 | IPG_AC_LED_MODE | IPG_AC_LED_SPEED);
364
365 if ((sp->LED_Mode & 0x03) > 1)
366 mode |= IPG_AC_LED_MODE_BIT_1; /* Write Asic Control Bit 29 */
367
368 if ((sp->LED_Mode & 0x01) == 1)
369 mode |= IPG_AC_LED_MODE; /* Write Asic Control Bit 14 */
370
371 if ((sp->LED_Mode & 0x08) == 8)
372 mode |= IPG_AC_LED_SPEED; /* Write Asic Control Bit 27 */
373
374 ipg_w32(mode, ASIC_CTRL);
375}
376
377/* Set PHYSet JES20040127EEPROM */
378static void ipg_set_phy_set(struct net_device *dev)
379{
380 struct ipg_nic_private *sp = netdev_priv(dev);
381 void __iomem *ioaddr = sp->ioaddr;
382 int physet;
383
384 physet = ipg_r8(PHY_SET);
385 physet &= ~(IPG_PS_MEM_LENB9B | IPG_PS_MEM_LEN9 | IPG_PS_NON_COMPDET);
386 physet |= ((sp->LED_Mode & 0x70) >> 4);
387 ipg_w8(physet, PHY_SET);
388}
389
390static int ipg_reset(struct net_device *dev, u32 resetflags)
391{
392 /* Assert functional resets via the IPG AsicCtrl
393 * register as specified by the 'resetflags' input
394 * parameter.
395 */
396 void __iomem *ioaddr = ipg_ioaddr(dev); //JES20040127EEPROM:
397 unsigned int timeout_count = 0;
398
399 IPG_DEBUG_MSG("_reset\n");
400
401 ipg_w32(ipg_r32(ASIC_CTRL) | resetflags, ASIC_CTRL);
402
403 /* Delay added to account for problem with 10Mbps reset. */
404 mdelay(IPG_AC_RESETWAIT);
405
406 while (IPG_AC_RESET_BUSY & ipg_r32(ASIC_CTRL)) {
407 mdelay(IPG_AC_RESETWAIT);
408 if (++timeout_count > IPG_AC_RESET_TIMEOUT)
409 return -ETIME;
410 }
411 /* Set LED Mode in Asic Control JES20040127EEPROM */
412 ipg_set_led_mode(dev);
413
414 /* Set PHYSet Register Value JES20040127EEPROM */
415 ipg_set_phy_set(dev);
416 return 0;
417}
418
419/* Find the GMII PHY address. */
420static int ipg_find_phyaddr(struct net_device *dev)
421{
422 unsigned int phyaddr, i;
423
424 for (i = 0; i < 32; i++) {
425 u32 status;
426
427 /* Search for the correct PHY address among 32 possible. */
428 phyaddr = (IPG_NIC_PHY_ADDRESS + i) % 32;
429
430 /* 10/22/03 Grace change verify from GMII_PHY_STATUS to
431 GMII_PHY_ID1
432 */
433
434 status = mdio_read(dev, phyaddr, MII_BMSR);
435
436 if ((status != 0xFFFF) && (status != 0))
437 return phyaddr;
438 }
439
440 return 0x1f;
441}
442
443/*
444 * Configure IPG based on result of IEEE 802.3 PHY
445 * auto-negotiation.
446 */
447static int ipg_config_autoneg(struct net_device *dev)
448{
449 struct ipg_nic_private *sp = netdev_priv(dev);
450 void __iomem *ioaddr = sp->ioaddr;
451 unsigned int txflowcontrol;
452 unsigned int rxflowcontrol;
453 unsigned int fullduplex;
454 unsigned int gig;
455 u32 mac_ctrl_val;
456 u32 asicctrl;
457 u8 phyctrl;
458
459 IPG_DEBUG_MSG("_config_autoneg\n");
460
461 asicctrl = ipg_r32(ASIC_CTRL);
462 phyctrl = ipg_r8(PHY_CTRL);
463 mac_ctrl_val = ipg_r32(MAC_CTRL);
464
465 /* Set flags for use in resolving auto-negotation, assuming
466 * non-1000Mbps, half duplex, no flow control.
467 */
468 fullduplex = 0;
469 txflowcontrol = 0;
470 rxflowcontrol = 0;
471 gig = 0;
472
473 /* To accomodate a problem in 10Mbps operation,
474 * set a global flag if PHY running in 10Mbps mode.
475 */
476 sp->tenmbpsmode = 0;
477
478 printk(KERN_INFO "%s: Link speed = ", dev->name);
479
480 /* Determine actual speed of operation. */
481 switch (phyctrl & IPG_PC_LINK_SPEED) {
482 case IPG_PC_LINK_SPEED_10MBPS:
483 printk("10Mbps.\n");
484 printk(KERN_INFO "%s: 10Mbps operational mode enabled.\n",
485 dev->name);
486 sp->tenmbpsmode = 1;
487 break;
488 case IPG_PC_LINK_SPEED_100MBPS:
489 printk("100Mbps.\n");
490 break;
491 case IPG_PC_LINK_SPEED_1000MBPS:
492 printk("1000Mbps.\n");
493 gig = 1;
494 break;
495 default:
496 printk("undefined!\n");
497 return 0;
498 }
499
500 if (phyctrl & IPG_PC_DUPLEX_STATUS) {
501 fullduplex = 1;
502 txflowcontrol = 1;
503 rxflowcontrol = 1;
504 }
505
506 /* Configure full duplex, and flow control. */
507 if (fullduplex == 1) {
508 /* Configure IPG for full duplex operation. */
509 printk(KERN_INFO "%s: setting full duplex, ", dev->name);
510
511 mac_ctrl_val |= IPG_MC_DUPLEX_SELECT_FD;
512
513 if (txflowcontrol == 1) {
514 printk("TX flow control");
515 mac_ctrl_val |= IPG_MC_TX_FLOW_CONTROL_ENABLE;
516 } else {
517 printk("no TX flow control");
518 mac_ctrl_val &= ~IPG_MC_TX_FLOW_CONTROL_ENABLE;
519 }
520
521 if (rxflowcontrol == 1) {
522 printk(", RX flow control.");
523 mac_ctrl_val |= IPG_MC_RX_FLOW_CONTROL_ENABLE;
524 } else {
525 printk(", no RX flow control.");
526 mac_ctrl_val &= ~IPG_MC_RX_FLOW_CONTROL_ENABLE;
527 }
528
529 printk("\n");
530 } else {
531 /* Configure IPG for half duplex operation. */
532 printk(KERN_INFO "%s: setting half duplex, "
533 "no TX flow control, no RX flow control.\n", dev->name);
534
535 mac_ctrl_val &= ~IPG_MC_DUPLEX_SELECT_FD &
536 ~IPG_MC_TX_FLOW_CONTROL_ENABLE &
537 ~IPG_MC_RX_FLOW_CONTROL_ENABLE;
538 }
539 ipg_w32(mac_ctrl_val, MAC_CTRL);
540 return 0;
541}
542
543/* Determine and configure multicast operation and set
544 * receive mode for IPG.
545 */
546static void ipg_nic_set_multicast_list(struct net_device *dev)
547{
548 void __iomem *ioaddr = ipg_ioaddr(dev);
549 struct dev_mc_list *mc_list_ptr;
550 unsigned int hashindex;
551 u32 hashtable[2];
552 u8 receivemode;
553
554 IPG_DEBUG_MSG("_nic_set_multicast_list\n");
555
556 receivemode = IPG_RM_RECEIVEUNICAST | IPG_RM_RECEIVEBROADCAST;
557
558 if (dev->flags & IFF_PROMISC) {
559 /* NIC to be configured in promiscuous mode. */
560 receivemode = IPG_RM_RECEIVEALLFRAMES;
561 } else if ((dev->flags & IFF_ALLMULTI) ||
562 (dev->flags & IFF_MULTICAST &
563 (dev->mc_count > IPG_MULTICAST_HASHTABLE_SIZE))) {
564 /* NIC to be configured to receive all multicast
565 * frames. */
566 receivemode |= IPG_RM_RECEIVEMULTICAST;
567 } else if (dev->flags & IFF_MULTICAST & (dev->mc_count > 0)) {
568 /* NIC to be configured to receive selected
569 * multicast addresses. */
570 receivemode |= IPG_RM_RECEIVEMULTICASTHASH;
571 }
572
573 /* Calculate the bits to set for the 64 bit, IPG HASHTABLE.
574 * The IPG applies a cyclic-redundancy-check (the same CRC
575 * used to calculate the frame data FCS) to the destination
576 * address all incoming multicast frames whose destination
577 * address has the multicast bit set. The least significant
578 * 6 bits of the CRC result are used as an addressing index
579 * into the hash table. If the value of the bit addressed by
580 * this index is a 1, the frame is passed to the host system.
581 */
582
583 /* Clear hashtable. */
584 hashtable[0] = 0x00000000;
585 hashtable[1] = 0x00000000;
586
587 /* Cycle through all multicast addresses to filter. */
588 for (mc_list_ptr = dev->mc_list;
589 mc_list_ptr != NULL; mc_list_ptr = mc_list_ptr->next) {
590 /* Calculate CRC result for each multicast address. */
591 hashindex = crc32_le(0xffffffff, mc_list_ptr->dmi_addr,
592 ETH_ALEN);
593
594 /* Use only the least significant 6 bits. */
595 hashindex = hashindex & 0x3F;
596
597 /* Within "hashtable", set bit number "hashindex"
598 * to a logic 1.
599 */
600 set_bit(hashindex, (void *)hashtable);
601 }
602
603 /* Write the value of the hashtable, to the 4, 16 bit
604 * HASHTABLE IPG registers.
605 */
606 ipg_w32(hashtable[0], HASHTABLE_0);
607 ipg_w32(hashtable[1], HASHTABLE_1);
608
609 ipg_w8(IPG_RM_RSVD_MASK & receivemode, RECEIVE_MODE);
610
611 IPG_DEBUG_MSG("ReceiveMode = %x\n", ipg_r8(RECEIVE_MODE));
612}
613
614static int ipg_io_config(struct net_device *dev)
615{
616 void __iomem *ioaddr = ipg_ioaddr(dev);
617 u32 origmacctrl;
618 u32 restoremacctrl;
619
620 IPG_DEBUG_MSG("_io_config\n");
621
622 origmacctrl = ipg_r32(MAC_CTRL);
623
624 restoremacctrl = origmacctrl | IPG_MC_STATISTICS_ENABLE;
625
626 /* Based on compilation option, determine if FCS is to be
627 * stripped on receive frames by IPG.
628 */
629 if (!IPG_STRIP_FCS_ON_RX)
630 restoremacctrl |= IPG_MC_RCV_FCS;
631
632 /* Determine if transmitter and/or receiver are
633 * enabled so we may restore MACCTRL correctly.
634 */
635 if (origmacctrl & IPG_MC_TX_ENABLED)
636 restoremacctrl |= IPG_MC_TX_ENABLE;
637
638 if (origmacctrl & IPG_MC_RX_ENABLED)
639 restoremacctrl |= IPG_MC_RX_ENABLE;
640
641 /* Transmitter and receiver must be disabled before setting
642 * IFSSelect.
643 */
644 ipg_w32((origmacctrl & (IPG_MC_RX_DISABLE | IPG_MC_TX_DISABLE)) &
645 IPG_MC_RSVD_MASK, MAC_CTRL);
646
647 /* Now that transmitter and receiver are disabled, write
648 * to IFSSelect.
649 */
650 ipg_w32((origmacctrl & IPG_MC_IFS_96BIT) & IPG_MC_RSVD_MASK, MAC_CTRL);
651
652 /* Set RECEIVEMODE register. */
653 ipg_nic_set_multicast_list(dev);
654
655 ipg_w16(IPG_MAX_RXFRAME_SIZE, MAX_FRAME_SIZE);
656
657 ipg_w8(IPG_RXDMAPOLLPERIOD_VALUE, RX_DMA_POLL_PERIOD);
658 ipg_w8(IPG_RXDMAURGENTTHRESH_VALUE, RX_DMA_URGENT_THRESH);
659 ipg_w8(IPG_RXDMABURSTTHRESH_VALUE, RX_DMA_BURST_THRESH);
660 ipg_w8(IPG_TXDMAPOLLPERIOD_VALUE, TX_DMA_POLL_PERIOD);
661 ipg_w8(IPG_TXDMAURGENTTHRESH_VALUE, TX_DMA_URGENT_THRESH);
662 ipg_w8(IPG_TXDMABURSTTHRESH_VALUE, TX_DMA_BURST_THRESH);
663 ipg_w16((IPG_IE_HOST_ERROR | IPG_IE_TX_DMA_COMPLETE |
664 IPG_IE_TX_COMPLETE | IPG_IE_INT_REQUESTED |
665 IPG_IE_UPDATE_STATS | IPG_IE_LINK_EVENT |
666 IPG_IE_RX_DMA_COMPLETE | IPG_IE_RX_DMA_PRIORITY), INT_ENABLE);
667 ipg_w16(IPG_FLOWONTHRESH_VALUE, FLOW_ON_THRESH);
668 ipg_w16(IPG_FLOWOFFTHRESH_VALUE, FLOW_OFF_THRESH);
669
670 /* IPG multi-frag frame bug workaround.
671 * Per silicon revision B3 eratta.
672 */
673 ipg_w16(ipg_r16(DEBUG_CTRL) | 0x0200, DEBUG_CTRL);
674
675 /* IPG TX poll now bug workaround.
676 * Per silicon revision B3 eratta.
677 */
678 ipg_w16(ipg_r16(DEBUG_CTRL) | 0x0010, DEBUG_CTRL);
679
680 /* IPG RX poll now bug workaround.
681 * Per silicon revision B3 eratta.
682 */
683 ipg_w16(ipg_r16(DEBUG_CTRL) | 0x0020, DEBUG_CTRL);
684
685 /* Now restore MACCTRL to original setting. */
686 ipg_w32(IPG_MC_RSVD_MASK & restoremacctrl, MAC_CTRL);
687
688 /* Disable unused RMON statistics. */
689 ipg_w32(IPG_RZ_ALL, RMON_STATISTICS_MASK);
690
691 /* Disable unused MIB statistics. */
692 ipg_w32(IPG_SM_MACCONTROLFRAMESXMTD | IPG_SM_MACCONTROLFRAMESRCVD |
693 IPG_SM_BCSTOCTETXMTOK_BCSTFRAMESXMTDOK | IPG_SM_TXJUMBOFRAMES |
694 IPG_SM_MCSTOCTETXMTOK_MCSTFRAMESXMTDOK | IPG_SM_RXJUMBOFRAMES |
695 IPG_SM_BCSTOCTETRCVDOK_BCSTFRAMESRCVDOK |
696 IPG_SM_UDPCHECKSUMERRORS | IPG_SM_TCPCHECKSUMERRORS |
697 IPG_SM_IPCHECKSUMERRORS, STATISTICS_MASK);
698
699 return 0;
700}
701
702/*
703 * Create a receive buffer within system memory and update
704 * NIC private structure appropriately.
705 */
706static int ipg_get_rxbuff(struct net_device *dev, int entry)
707{
708 struct ipg_nic_private *sp = netdev_priv(dev);
709 struct ipg_rx *rxfd = sp->rxd + entry;
710 struct sk_buff *skb;
711 u64 rxfragsize;
712
713 IPG_DEBUG_MSG("_get_rxbuff\n");
714
715 skb = netdev_alloc_skb(dev, IPG_RXSUPPORT_SIZE + NET_IP_ALIGN);
716 if (!skb) {
717 sp->RxBuff[entry] = NULL;
718 return -ENOMEM;
719 }
720
721 /* Adjust the data start location within the buffer to
722 * align IP address field to a 16 byte boundary.
723 */
724 skb_reserve(skb, NET_IP_ALIGN);
725
726 /* Associate the receive buffer with the IPG NIC. */
727 skb->dev = dev;
728
729 /* Save the address of the sk_buff structure. */
730 sp->RxBuff[entry] = skb;
731
732 rxfd->frag_info = cpu_to_le64(pci_map_single(sp->pdev, skb->data,
733 sp->rx_buf_sz, PCI_DMA_FROMDEVICE));
734
735 /* Set the RFD fragment length. */
736 rxfragsize = IPG_RXFRAG_SIZE;
737 rxfd->frag_info |= cpu_to_le64((rxfragsize << 48) & IPG_RFI_FRAGLEN);
738
739 return 0;
740}
741
742static int init_rfdlist(struct net_device *dev)
743{
744 struct ipg_nic_private *sp = netdev_priv(dev);
745 void __iomem *ioaddr = sp->ioaddr;
746 unsigned int i;
747
748 IPG_DEBUG_MSG("_init_rfdlist\n");
749
750 for (i = 0; i < IPG_RFDLIST_LENGTH; i++) {
751 struct ipg_rx *rxfd = sp->rxd + i;
752
753 if (sp->RxBuff[i]) {
754 pci_unmap_single(sp->pdev,
755 le64_to_cpu(rxfd->frag_info & ~IPG_RFI_FRAGLEN),
756 sp->rx_buf_sz, PCI_DMA_FROMDEVICE);
757 IPG_DEV_KFREE_SKB(sp->RxBuff[i]);
758 sp->RxBuff[i] = NULL;
759 }
760
761 /* Clear out the RFS field. */
762 rxfd->rfs = 0x0000000000000000;
763
764 if (ipg_get_rxbuff(dev, i) < 0) {
765 /*
766 * A receive buffer was not ready, break the
767 * RFD list here.
768 */
769 IPG_DEBUG_MSG("Cannot allocate Rx buffer.\n");
770
771 /* Just in case we cannot allocate a single RFD.
772 * Should not occur.
773 */
774 if (i == 0) {
775 printk(KERN_ERR "%s: No memory available"
776 " for RFD list.\n", dev->name);
777 return -ENOMEM;
778 }
779 }
780
781 rxfd->next_desc = cpu_to_le64(sp->rxd_map +
782 sizeof(struct ipg_rx)*(i + 1));
783 }
784 sp->rxd[i - 1].next_desc = cpu_to_le64(sp->rxd_map);
785
786 sp->rx_current = 0;
787 sp->rx_dirty = 0;
788
789 /* Write the location of the RFDList to the IPG. */
790 ipg_w32((u32) sp->rxd_map, RFD_LIST_PTR_0);
791 ipg_w32(0x00000000, RFD_LIST_PTR_1);
792
793 return 0;
794}
795
796static void init_tfdlist(struct net_device *dev)
797{
798 struct ipg_nic_private *sp = netdev_priv(dev);
799 void __iomem *ioaddr = sp->ioaddr;
800 unsigned int i;
801
802 IPG_DEBUG_MSG("_init_tfdlist\n");
803
804 for (i = 0; i < IPG_TFDLIST_LENGTH; i++) {
805 struct ipg_tx *txfd = sp->txd + i;
806
807 txfd->tfc = cpu_to_le64(IPG_TFC_TFDDONE);
808
809 if (sp->TxBuff[i]) {
810 IPG_DEV_KFREE_SKB(sp->TxBuff[i]);
811 sp->TxBuff[i] = NULL;
812 }
813
814 txfd->next_desc = cpu_to_le64(sp->txd_map +
815 sizeof(struct ipg_tx)*(i + 1));
816 }
817 sp->txd[i - 1].next_desc = cpu_to_le64(sp->txd_map);
818
819 sp->tx_current = 0;
820 sp->tx_dirty = 0;
821
822 /* Write the location of the TFDList to the IPG. */
823 IPG_DDEBUG_MSG("Starting TFDListPtr = %8.8x\n",
824 (u32) sp->txd_map);
825 ipg_w32((u32) sp->txd_map, TFD_LIST_PTR_0);
826 ipg_w32(0x00000000, TFD_LIST_PTR_1);
827
828 sp->ResetCurrentTFD = 1;
829}
830
831/*
832 * Free all transmit buffers which have already been transfered
833 * via DMA to the IPG.
834 */
835static void ipg_nic_txfree(struct net_device *dev)
836{
837 struct ipg_nic_private *sp = netdev_priv(dev);
838 void __iomem *ioaddr = sp->ioaddr;
839 const unsigned int curr = ipg_r32(TFD_LIST_PTR_0) -
840 (sp->txd_map / sizeof(struct ipg_tx)) - 1;
841 unsigned int released, pending;
842
843 IPG_DEBUG_MSG("_nic_txfree\n");
844
845 pending = sp->tx_current - sp->tx_dirty;
846
847 for (released = 0; released < pending; released++) {
848 unsigned int dirty = sp->tx_dirty % IPG_TFDLIST_LENGTH;
849 struct sk_buff *skb = sp->TxBuff[dirty];
850 struct ipg_tx *txfd = sp->txd + dirty;
851
852 IPG_DEBUG_MSG("TFC = %16.16lx\n", (unsigned long) txfd->tfc);
853
854 /* Look at each TFD's TFC field beginning
855 * at the last freed TFD up to the current TFD.
856 * If the TFDDone bit is set, free the associated
857 * buffer.
858 */
859 if (dirty == curr)
860 break;
861
862 /* Setup TFDDONE for compatible issue. */
863 txfd->tfc |= cpu_to_le64(IPG_TFC_TFDDONE);
864
865 /* Free the transmit buffer. */
866 if (skb) {
867 pci_unmap_single(sp->pdev,
868 le64_to_cpu(txfd->frag_info & ~IPG_TFI_FRAGLEN),
869 skb->len, PCI_DMA_TODEVICE);
870
871 IPG_DEV_KFREE_SKB(skb);
872
873 sp->TxBuff[dirty] = NULL;
874 }
875 }
876
877 sp->tx_dirty += released;
878
879 if (netif_queue_stopped(dev) &&
880 (sp->tx_current != (sp->tx_dirty + IPG_TFDLIST_LENGTH))) {
881 netif_wake_queue(dev);
882 }
883}
884
885static void ipg_tx_timeout(struct net_device *dev)
886{
887 struct ipg_nic_private *sp = netdev_priv(dev);
888 void __iomem *ioaddr = sp->ioaddr;
889
890 ipg_reset(dev, IPG_AC_TX_RESET | IPG_AC_DMA | IPG_AC_NETWORK |
891 IPG_AC_FIFO);
892
893 spin_lock_irq(&sp->lock);
894
895 /* Re-configure after DMA reset. */
896 if (ipg_io_config(dev) < 0) {
897 printk(KERN_INFO "%s: Error during re-configuration.\n",
898 dev->name);
899 }
900
901 init_tfdlist(dev);
902
903 spin_unlock_irq(&sp->lock);
904
905 ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) & IPG_MC_RSVD_MASK,
906 MAC_CTRL);
907}
908
909/*
910 * For TxComplete interrupts, free all transmit
911 * buffers which have already been transfered via DMA
912 * to the IPG.
913 */
914static void ipg_nic_txcleanup(struct net_device *dev)
915{
916 struct ipg_nic_private *sp = netdev_priv(dev);
917 void __iomem *ioaddr = sp->ioaddr;
918 unsigned int i;
919
920 IPG_DEBUG_MSG("_nic_txcleanup\n");
921
922 for (i = 0; i < IPG_TFDLIST_LENGTH; i++) {
923 /* Reading the TXSTATUS register clears the
924 * TX_COMPLETE interrupt.
925 */
926 u32 txstatusdword = ipg_r32(TX_STATUS);
927
928 IPG_DEBUG_MSG("TxStatus = %8.8x\n", txstatusdword);
929
930 /* Check for Transmit errors. Error bits only valid if
931 * TX_COMPLETE bit in the TXSTATUS register is a 1.
932 */
933 if (!(txstatusdword & IPG_TS_TX_COMPLETE))
934 break;
935
936 /* If in 10Mbps mode, indicate transmit is ready. */
937 if (sp->tenmbpsmode) {
938 netif_wake_queue(dev);
939 }
940
941 /* Transmit error, increment stat counters. */
942 if (txstatusdword & IPG_TS_TX_ERROR) {
943 IPG_DEBUG_MSG("Transmit error.\n");
944 sp->stats.tx_errors++;
945 }
946
947 /* Late collision, re-enable transmitter. */
948 if (txstatusdword & IPG_TS_LATE_COLLISION) {
949 IPG_DEBUG_MSG("Late collision on transmit.\n");
950 ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) &
951 IPG_MC_RSVD_MASK, MAC_CTRL);
952 }
953
954 /* Maximum collisions, re-enable transmitter. */
955 if (txstatusdword & IPG_TS_TX_MAX_COLL) {
956 IPG_DEBUG_MSG("Maximum collisions on transmit.\n");
957 ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) &
958 IPG_MC_RSVD_MASK, MAC_CTRL);
959 }
960
961 /* Transmit underrun, reset and re-enable
962 * transmitter.
963 */
964 if (txstatusdword & IPG_TS_TX_UNDERRUN) {
965 IPG_DEBUG_MSG("Transmitter underrun.\n");
966 sp->stats.tx_fifo_errors++;
967 ipg_reset(dev, IPG_AC_TX_RESET | IPG_AC_DMA |
968 IPG_AC_NETWORK | IPG_AC_FIFO);
969
970 /* Re-configure after DMA reset. */
971 if (ipg_io_config(dev) < 0) {
972 printk(KERN_INFO
973 "%s: Error during re-configuration.\n",
974 dev->name);
975 }
976 init_tfdlist(dev);
977
978 ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) &
979 IPG_MC_RSVD_MASK, MAC_CTRL);
980 }
981 }
982
983 ipg_nic_txfree(dev);
984}
985
986/* Provides statistical information about the IPG NIC. */
987struct net_device_stats *ipg_nic_get_stats(struct net_device *dev)
988{
989 struct ipg_nic_private *sp = netdev_priv(dev);
990 void __iomem *ioaddr = sp->ioaddr;
991 u16 temp1;
992 u16 temp2;
993
994 IPG_DEBUG_MSG("_nic_get_stats\n");
995
996 /* Check to see if the NIC has been initialized via nic_open,
997 * before trying to read statistic registers.
998 */
999 if (!test_bit(__LINK_STATE_START, &dev->state))
1000 return &sp->stats;
1001
1002 sp->stats.rx_packets += ipg_r32(IPG_FRAMESRCVDOK);
1003 sp->stats.tx_packets += ipg_r32(IPG_FRAMESXMTDOK);
1004 sp->stats.rx_bytes += ipg_r32(IPG_OCTETRCVOK);
1005 sp->stats.tx_bytes += ipg_r32(IPG_OCTETXMTOK);
1006 temp1 = ipg_r16(IPG_FRAMESLOSTRXERRORS);
1007 sp->stats.rx_errors += temp1;
1008 sp->stats.rx_missed_errors += temp1;
1009 temp1 = ipg_r32(IPG_SINGLECOLFRAMES) + ipg_r32(IPG_MULTICOLFRAMES) +
1010 ipg_r32(IPG_LATECOLLISIONS);
1011 temp2 = ipg_r16(IPG_CARRIERSENSEERRORS);
1012 sp->stats.collisions += temp1;
1013 sp->stats.tx_dropped += ipg_r16(IPG_FRAMESABORTXSCOLLS);
1014 sp->stats.tx_errors += ipg_r16(IPG_FRAMESWEXDEFERRAL) +
1015 ipg_r32(IPG_FRAMESWDEFERREDXMT) + temp1 + temp2;
1016 sp->stats.multicast += ipg_r32(IPG_MCSTOCTETRCVDOK);
1017
1018 /* detailed tx_errors */
1019 sp->stats.tx_carrier_errors += temp2;
1020
1021 /* detailed rx_errors */
1022 sp->stats.rx_length_errors += ipg_r16(IPG_INRANGELENGTHERRORS) +
1023 ipg_r16(IPG_FRAMETOOLONGERRRORS);
1024 sp->stats.rx_crc_errors += ipg_r16(IPG_FRAMECHECKSEQERRORS);
1025
1026 /* Unutilized IPG statistic registers. */
1027 ipg_r32(IPG_MCSTFRAMESRCVDOK);
1028
1029 return &sp->stats;
1030}
1031
1032/* Restore used receive buffers. */
1033static int ipg_nic_rxrestore(struct net_device *dev)
1034{
1035 struct ipg_nic_private *sp = netdev_priv(dev);
1036 const unsigned int curr = sp->rx_current;
1037 unsigned int dirty = sp->rx_dirty;
1038
1039 IPG_DEBUG_MSG("_nic_rxrestore\n");
1040
1041 for (dirty = sp->rx_dirty; curr - dirty > 0; dirty++) {
1042 unsigned int entry = dirty % IPG_RFDLIST_LENGTH;
1043
1044 /* rx_copybreak may poke hole here and there. */
1045 if (sp->RxBuff[entry])
1046 continue;
1047
1048 /* Generate a new receive buffer to replace the
1049 * current buffer (which will be released by the
1050 * Linux system).
1051 */
1052 if (ipg_get_rxbuff(dev, entry) < 0) {
1053 IPG_DEBUG_MSG("Cannot allocate new Rx buffer.\n");
1054
1055 break;
1056 }
1057
1058 /* Reset the RFS field. */
1059 sp->rxd[entry].rfs = 0x0000000000000000;
1060 }
1061 sp->rx_dirty = dirty;
1062
1063 return 0;
1064}
1065
1066#ifdef JUMBO_FRAME
1067
1068/* use jumboindex and jumbosize to control jumbo frame status
1069 initial status is jumboindex=-1 and jumbosize=0
1070 1. jumboindex = -1 and jumbosize=0 : previous jumbo frame has been done.
1071 2. jumboindex != -1 and jumbosize != 0 : jumbo frame is not over size and receiving
1072 3. jumboindex = -1 and jumbosize != 0 : jumbo frame is over size, already dump
1073 previous receiving and need to continue dumping the current one
1074*/
1075enum {
1076 NormalPacket,
1077 ErrorPacket
1078};
1079
1080enum {
1081 Frame_NoStart_NoEnd = 0,
1082 Frame_WithStart = 1,
1083 Frame_WithEnd = 10,
1084 Frame_WithStart_WithEnd = 11
1085};
1086
1087inline void ipg_nic_rx_free_skb(struct net_device *dev)
1088{
1089 struct ipg_nic_private *sp = netdev_priv(dev);
1090 unsigned int entry = sp->rx_current % IPG_RFDLIST_LENGTH;
1091
1092 if (sp->RxBuff[entry]) {
1093 struct ipg_rx *rxfd = sp->rxd + entry;
1094
1095 pci_unmap_single(sp->pdev,
1096 le64_to_cpu(rxfd->frag_info & ~IPG_RFI_FRAGLEN),
1097 sp->rx_buf_sz, PCI_DMA_FROMDEVICE);
1098 IPG_DEV_KFREE_SKB(sp->RxBuff[entry]);
1099 sp->RxBuff[entry] = NULL;
1100 }
1101}
1102
1103inline int ipg_nic_rx_check_frame_type(struct net_device *dev)
1104{
1105 struct ipg_nic_private *sp = netdev_priv(dev);
1106 struct ipg_rx *rxfd = sp->rxd + (sp->rx_current % IPG_RFDLIST_LENGTH);
1107 int type = Frame_NoStart_NoEnd;
1108
1109 if (le64_to_cpu(rxfd->rfs) & IPG_RFS_FRAMESTART)
1110 type += Frame_WithStart;
1111 if (le64_to_cpu(rxfd->rfs) & IPG_RFS_FRAMEEND)
1112 type += Frame_WithEnd;
1113 return type;
1114}
1115
1116inline int ipg_nic_rx_check_error(struct net_device *dev)
1117{
1118 struct ipg_nic_private *sp = netdev_priv(dev);
1119 unsigned int entry = sp->rx_current % IPG_RFDLIST_LENGTH;
1120 struct ipg_rx *rxfd = sp->rxd + entry;
1121
1122 if (IPG_DROP_ON_RX_ETH_ERRORS && (le64_to_cpu(rxfd->rfs) &
1123 (IPG_RFS_RXFIFOOVERRUN | IPG_RFS_RXRUNTFRAME |
1124 IPG_RFS_RXALIGNMENTERROR | IPG_RFS_RXFCSERROR |
1125 IPG_RFS_RXOVERSIZEDFRAME | IPG_RFS_RXLENGTHERROR))) {
1126 IPG_DEBUG_MSG("Rx error, RFS = %16.16lx\n",
1127 (unsigned long) rxfd->rfs);
1128
1129 /* Increment general receive error statistic. */
1130 sp->stats.rx_errors++;
1131
1132 /* Increment detailed receive error statistics. */
1133 if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFIFOOVERRUN) {
1134 IPG_DEBUG_MSG("RX FIFO overrun occured.\n");
1135
1136 sp->stats.rx_fifo_errors++;
1137 }
1138
1139 if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXRUNTFRAME) {
1140 IPG_DEBUG_MSG("RX runt occured.\n");
1141 sp->stats.rx_length_errors++;
1142 }
1143
1144 /* Do nothing for IPG_RFS_RXOVERSIZEDFRAME,
1145 * error count handled by a IPG statistic register.
1146 */
1147
1148 if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXALIGNMENTERROR) {
1149 IPG_DEBUG_MSG("RX alignment error occured.\n");
1150 sp->stats.rx_frame_errors++;
1151 }
1152
1153 /* Do nothing for IPG_RFS_RXFCSERROR, error count
1154 * handled by a IPG statistic register.
1155 */
1156
1157 /* Free the memory associated with the RX
1158 * buffer since it is erroneous and we will
1159 * not pass it to higher layer processes.
1160 */
1161 if (sp->RxBuff[entry]) {
1162 pci_unmap_single(sp->pdev,
1163 le64_to_cpu(rxfd->frag_info & ~IPG_RFI_FRAGLEN),
1164 sp->rx_buf_sz, PCI_DMA_FROMDEVICE);
1165
1166 IPG_DEV_KFREE_SKB(sp->RxBuff[entry]);
1167 sp->RxBuff[entry] = NULL;
1168 }
1169 return ErrorPacket;
1170 }
1171 return NormalPacket;
1172}
1173
1174static void ipg_nic_rx_with_start_and_end(struct net_device *dev,
1175 struct ipg_nic_private *sp,
1176 struct ipg_rx *rxfd, unsigned entry)
1177{
1178 struct SJumbo *jumbo = &sp->Jumbo;
1179 struct sk_buff *skb;
1180 int framelen;
1181
1182 if (jumbo->FoundStart) {
1183 IPG_DEV_KFREE_SKB(jumbo->skb);
1184 jumbo->FoundStart = 0;
1185 jumbo->CurrentSize = 0;
1186 jumbo->skb = NULL;
1187 }
1188
1189 // 1: found error, 0 no error
1190 if (ipg_nic_rx_check_error(dev) != NormalPacket)
1191 return;
1192
1193 skb = sp->RxBuff[entry];
1194 if (!skb)
1195 return;
1196
1197 // accept this frame and send to upper layer
1198 framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN;
1199 if (framelen > IPG_RXFRAG_SIZE)
1200 framelen = IPG_RXFRAG_SIZE;
1201
1202 skb_put(skb, framelen);
1203 skb->protocol = eth_type_trans(skb, dev);
1204 skb->ip_summed = CHECKSUM_NONE;
1205 netif_rx(skb);
1206 dev->last_rx = jiffies;
1207 sp->RxBuff[entry] = NULL;
1208}
1209
1210static void ipg_nic_rx_with_start(struct net_device *dev,
1211 struct ipg_nic_private *sp,
1212 struct ipg_rx *rxfd, unsigned entry)
1213{
1214 struct SJumbo *jumbo = &sp->Jumbo;
1215 struct pci_dev *pdev = sp->pdev;
1216 struct sk_buff *skb;
1217
1218 // 1: found error, 0 no error
1219 if (ipg_nic_rx_check_error(dev) != NormalPacket)
1220 return;
1221
1222 // accept this frame and send to upper layer
1223 skb = sp->RxBuff[entry];
1224 if (!skb)
1225 return;
1226
1227 if (jumbo->FoundStart)
1228 IPG_DEV_KFREE_SKB(jumbo->skb);
1229
1230 pci_unmap_single(pdev, le64_to_cpu(rxfd->frag_info & ~IPG_RFI_FRAGLEN),
1231 sp->rx_buf_sz, PCI_DMA_FROMDEVICE);
1232
1233 skb_put(skb, IPG_RXFRAG_SIZE);
1234
1235 jumbo->FoundStart = 1;
1236 jumbo->CurrentSize = IPG_RXFRAG_SIZE;
1237 jumbo->skb = skb;
1238
1239 sp->RxBuff[entry] = NULL;
1240 dev->last_rx = jiffies;
1241}
1242
1243static void ipg_nic_rx_with_end(struct net_device *dev,
1244 struct ipg_nic_private *sp,
1245 struct ipg_rx *rxfd, unsigned entry)
1246{
1247 struct SJumbo *jumbo = &sp->Jumbo;
1248
1249 //1: found error, 0 no error
1250 if (ipg_nic_rx_check_error(dev) == NormalPacket) {
1251 struct sk_buff *skb = sp->RxBuff[entry];
1252
1253 if (!skb)
1254 return;
1255
1256 if (jumbo->FoundStart) {
1257 int framelen, endframelen;
1258
1259 framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN;
1260
1261 endframeLen = framelen - jumbo->CurrentSize;
1262 /*
1263 if (framelen > IPG_RXFRAG_SIZE)
1264 framelen=IPG_RXFRAG_SIZE;
1265 */
1266 if (framelen > IPG_RXSUPPORT_SIZE)
1267 IPG_DEV_KFREE_SKB(jumbo->skb);
1268 else {
1269 memcpy(skb_put(jumbo->skb, endframeLen),
1270 skb->data, endframeLen);
1271
1272 jumbo->skb->protocol =
1273 eth_type_trans(jumbo->skb, dev);
1274
1275 jumbo->skb->ip_summed = CHECKSUM_NONE;
1276 netif_rx(jumbo->skb);
1277 }
1278 }
1279
1280 dev->last_rx = jiffies;
1281 jumbo->FoundStart = 0;
1282 jumbo->CurrentSize = 0;
1283 jumbo->skb = NULL;
1284
1285 ipg_nic_rx_free_skb(dev);
1286 } else {
1287 IPG_DEV_KFREE_SKB(jumbo->skb);
1288 jumbo->FoundStart = 0;
1289 jumbo->CurrentSize = 0;
1290 jumbo->skb = NULL;
1291 }
1292}
1293
1294static void ipg_nic_rx_no_start_no_end(struct net_device *dev,
1295 struct ipg_nic_private *sp,
1296 struct ipg_rx *rxfd, unsigned entry)
1297{
1298 struct SJumbo *jumbo = &sp->Jumbo;
1299
1300 //1: found error, 0 no error
1301 if (ipg_nic_rx_check_error(dev) == NormalPacket) {
1302 struct sk_buff *skb = sp->RxBuff[entry];
1303
1304 if (skb) {
1305 if (jumbo->FoundStart) {
1306 jumbo->CurrentSize += IPG_RXFRAG_SIZE;
1307 if (jumbo->CurrentSize <= IPG_RXSUPPORT_SIZE) {
1308 memcpy(skb_put(jumbo->skb,
1309 IPG_RXFRAG_SIZE),
1310 skb->data, IPG_RXFRAG_SIZE);
1311 }
1312 }
1313 dev->last_rx = jiffies;
1314 ipg_nic_rx_free_skb(dev);
1315 }
1316 } else {
1317 IPG_DEV_KFREE_SKB(jumbo->skb);
1318 jumbo->FoundStart = 0;
1319 jumbo->CurrentSize = 0;
1320 jumbo->skb = NULL;
1321 }
1322}
1323
1324static int ipg_nic_rx(struct net_device *dev)
1325{
1326 struct ipg_nic_private *sp = netdev_priv(dev);
1327 unsigned int curr = sp->rx_current;
1328 void __iomem *ioaddr = sp->ioaddr;
1329 unsigned int i;
1330
1331 IPG_DEBUG_MSG("_nic_rx\n");
1332
1333 for (i = 0; i < IPG_MAXRFDPROCESS_COUNT; i++, curr++) {
1334 unsigned int entry = curr % IPG_RFDLIST_LENGTH;
1335 struct ipg_rx *rxfd = sp->rxd + entry;
1336
1337 if (!(rxfd->rfs & le64_to_cpu(IPG_RFS_RFDDONE)))
1338 break;
1339
1340 switch (ipg_nic_rx_check_frame_type(dev)) {
1341 case Frame_WithStart_WithEnd:
1342 ipg_nic_rx_with_start_and_end(dev, tp, rxfd, entry);
1343 break;
1344 case Frame_WithStart:
1345 ipg_nic_rx_with_start(dev, tp, rxfd, entry);
1346 break;
1347 case Frame_WithEnd:
1348 ipg_nic_rx_with_end(dev, tp, rxfd, entry);
1349 break;
1350 case Frame_NoStart_NoEnd:
1351 ipg_nic_rx_no_start_no_end(dev, tp, rxfd, entry);
1352 break;
1353 }
1354 }
1355
1356 sp->rx_current = curr;
1357
1358 if (i == IPG_MAXRFDPROCESS_COUNT) {
1359 /* There are more RFDs to process, however the
1360 * allocated amount of RFD processing time has
1361 * expired. Assert Interrupt Requested to make
1362 * sure we come back to process the remaining RFDs.
1363 */
1364 ipg_w32(ipg_r32(ASIC_CTRL) | IPG_AC_INT_REQUEST, ASIC_CTRL);
1365 }
1366
1367 ipg_nic_rxrestore(dev);
1368
1369 return 0;
1370}
1371
1372#else
1373static int ipg_nic_rx(struct net_device *dev)
1374{
1375 /* Transfer received Ethernet frames to higher network layers. */
1376 struct ipg_nic_private *sp = netdev_priv(dev);
1377 unsigned int curr = sp->rx_current;
1378 void __iomem *ioaddr = sp->ioaddr;
1379 struct ipg_rx *rxfd;
1380 unsigned int i;
1381
1382 IPG_DEBUG_MSG("_nic_rx\n");
1383
1384#define __RFS_MASK \
1385 cpu_to_le64(IPG_RFS_RFDDONE | IPG_RFS_FRAMESTART | IPG_RFS_FRAMEEND)
1386
1387 for (i = 0; i < IPG_MAXRFDPROCESS_COUNT; i++, curr++) {
1388 unsigned int entry = curr % IPG_RFDLIST_LENGTH;
1389 struct sk_buff *skb = sp->RxBuff[entry];
1390 unsigned int framelen;
1391
1392 rxfd = sp->rxd + entry;
1393
1394 if (((rxfd->rfs & __RFS_MASK) != __RFS_MASK) || !skb)
1395 break;
1396
1397 /* Get received frame length. */
1398 framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN;
1399
1400 /* Check for jumbo frame arrival with too small
1401 * RXFRAG_SIZE.
1402 */
1403 if (framelen > IPG_RXFRAG_SIZE) {
1404 IPG_DEBUG_MSG
1405 ("RFS FrameLen > allocated fragment size.\n");
1406
1407 framelen = IPG_RXFRAG_SIZE;
1408 }
1409
1410 if ((IPG_DROP_ON_RX_ETH_ERRORS && (le64_to_cpu(rxfd->rfs &
1411 (IPG_RFS_RXFIFOOVERRUN | IPG_RFS_RXRUNTFRAME |
1412 IPG_RFS_RXALIGNMENTERROR | IPG_RFS_RXFCSERROR |
1413 IPG_RFS_RXOVERSIZEDFRAME | IPG_RFS_RXLENGTHERROR))))) {
1414
1415 IPG_DEBUG_MSG("Rx error, RFS = %16.16lx\n",
1416 (unsigned long int) rxfd->rfs);
1417
1418 /* Increment general receive error statistic. */
1419 sp->stats.rx_errors++;
1420
1421 /* Increment detailed receive error statistics. */
1422 if (le64_to_cpu(rxfd->rfs & IPG_RFS_RXFIFOOVERRUN)) {
1423 IPG_DEBUG_MSG("RX FIFO overrun occured.\n");
1424 sp->stats.rx_fifo_errors++;
1425 }
1426
1427 if (le64_to_cpu(rxfd->rfs & IPG_RFS_RXRUNTFRAME)) {
1428 IPG_DEBUG_MSG("RX runt occured.\n");
1429 sp->stats.rx_length_errors++;
1430 }
1431
1432 if (le64_to_cpu(rxfd->rfs & IPG_RFS_RXOVERSIZEDFRAME)) ;
1433 /* Do nothing, error count handled by a IPG
1434 * statistic register.
1435 */
1436
1437 if (le64_to_cpu(rxfd->rfs & IPG_RFS_RXALIGNMENTERROR)) {
1438 IPG_DEBUG_MSG("RX alignment error occured.\n");
1439 sp->stats.rx_frame_errors++;
1440 }
1441
1442 if (le64_to_cpu(rxfd->rfs & IPG_RFS_RXFCSERROR)) ;
1443 /* Do nothing, error count handled by a IPG
1444 * statistic register.
1445 */
1446
1447 /* Free the memory associated with the RX
1448 * buffer since it is erroneous and we will
1449 * not pass it to higher layer processes.
1450 */
1451 if (skb) {
1452 u64 info = rxfd->frag_info;
1453
1454 pci_unmap_single(sp->pdev,
1455 le64_to_cpu(info & ~IPG_RFI_FRAGLEN),
1456 sp->rx_buf_sz, PCI_DMA_FROMDEVICE);
1457
1458 IPG_DEV_KFREE_SKB(skb);
1459 }
1460 } else {
1461
1462 /* Adjust the new buffer length to accomodate the size
1463 * of the received frame.
1464 */
1465 skb_put(skb, framelen);
1466
1467 /* Set the buffer's protocol field to Ethernet. */
1468 skb->protocol = eth_type_trans(skb, dev);
1469
1470 /* If the frame contains an IP/TCP/UDP frame,
1471 * determine if upper layer must check IP/TCP/UDP
1472 * checksums.
1473 *
1474 * NOTE: DO NOT RELY ON THE TCP/UDP CHECKSUM
1475 * VERIFICATION FOR SILICON REVISIONS B3
1476 * AND EARLIER!
1477 *
1478 if ((le64_to_cpu(rxfd->rfs &
1479 (IPG_RFS_TCPDETECTED | IPG_RFS_UDPDETECTED |
1480 IPG_RFS_IPDETECTED))) &&
1481 !(le64_to_cpu(rxfd->rfs &
1482 (IPG_RFS_TCPERROR | IPG_RFS_UDPERROR |
1483 IPG_RFS_IPERROR)))) {
1484 * Indicate IP checksums were performed
1485 * by the IPG.
1486 *
1487 skb->ip_summed = CHECKSUM_UNNECESSARY;
1488 } else
1489 */
1490 {
1491 /* The IPG encountered an error with (or
1492 * there were no) IP/TCP/UDP checksums.
1493 * This may or may not indicate an invalid
1494 * IP/TCP/UDP frame was received. Let the
1495 * upper layer decide.
1496 */
1497 skb->ip_summed = CHECKSUM_NONE;
1498 }
1499
1500 /* Hand off frame for higher layer processing.
1501 * The function netif_rx() releases the sk_buff
1502 * when processing completes.
1503 */
1504 netif_rx(skb);
1505
1506 /* Record frame receive time (jiffies = Linux
1507 * kernel current time stamp).
1508 */
1509 dev->last_rx = jiffies;
1510 }
1511
1512 /* Assure RX buffer is not reused by IPG. */
1513 sp->RxBuff[entry] = NULL;
1514 }
1515
1516 /*
1517 * If there are more RFDs to proces and the allocated amount of RFD
1518 * processing time has expired, assert Interrupt Requested to make
1519 * sure we come back to process the remaining RFDs.
1520 */
1521 if (i == IPG_MAXRFDPROCESS_COUNT)
1522 ipg_w32(ipg_r32(ASIC_CTRL) | IPG_AC_INT_REQUEST, ASIC_CTRL);
1523
1524#ifdef IPG_DEBUG
1525 /* Check if the RFD list contained no receive frame data. */
1526 if (!i)
1527 sp->EmptyRFDListCount++;
1528#endif
1529 while ((le64_to_cpu(rxfd->rfs & IPG_RFS_RFDDONE)) &&
1530 !((le64_to_cpu(rxfd->rfs & IPG_RFS_FRAMESTART)) &&
1531 (le64_to_cpu(rxfd->rfs & IPG_RFS_FRAMEEND)))) {
1532 unsigned int entry = curr++ % IPG_RFDLIST_LENGTH;
1533
1534 rxfd = sp->rxd + entry;
1535
1536 IPG_DEBUG_MSG("Frame requires multiple RFDs.\n");
1537
1538 /* An unexpected event, additional code needed to handle
1539 * properly. So for the time being, just disregard the
1540 * frame.
1541 */
1542
1543 /* Free the memory associated with the RX
1544 * buffer since it is erroneous and we will
1545 * not pass it to higher layer processes.
1546 */
1547 if (sp->RxBuff[entry]) {
1548 pci_unmap_single(sp->pdev,
1549 le64_to_cpu(rxfd->frag_info & ~IPG_RFI_FRAGLEN),
1550 sp->rx_buf_sz, PCI_DMA_FROMDEVICE);
1551 IPG_DEV_KFREE_SKB(sp->RxBuff[entry]);
1552 }
1553
1554 /* Assure RX buffer is not reused by IPG. */
1555 sp->RxBuff[entry] = NULL;
1556 }
1557
1558 sp->rx_current = curr;
1559
1560 /* Check to see if there are a minimum number of used
1561 * RFDs before restoring any (should improve performance.)
1562 */
1563 if ((curr - sp->rx_dirty) >= IPG_MINUSEDRFDSTOFREE)
1564 ipg_nic_rxrestore(dev);
1565
1566 return 0;
1567}
1568#endif
1569
1570static void ipg_reset_after_host_error(struct work_struct *work)
1571{
1572 struct ipg_nic_private *sp =
1573 container_of(work, struct ipg_nic_private, task.work);
1574 struct net_device *dev = sp->dev;
1575
1576 IPG_DDEBUG_MSG("DMACtrl = %8.8x\n", ioread32(sp->ioaddr + IPG_DMACTRL));
1577
1578 /*
1579 * Acknowledge HostError interrupt by resetting
1580 * IPG DMA and HOST.
1581 */
1582 ipg_reset(dev, IPG_AC_GLOBAL_RESET | IPG_AC_HOST | IPG_AC_DMA);
1583
1584 init_rfdlist(dev);
1585 init_tfdlist(dev);
1586
1587 if (ipg_io_config(dev) < 0) {
1588 printk(KERN_INFO "%s: Cannot recover from PCI error.\n",
1589 dev->name);
1590 schedule_delayed_work(&sp->task, HZ);
1591 }
1592}
1593
1594static irqreturn_t ipg_interrupt_handler(int irq, void *dev_inst)
1595{
1596 struct net_device *dev = dev_inst;
1597 struct ipg_nic_private *sp = netdev_priv(dev);
1598 void __iomem *ioaddr = sp->ioaddr;
1599 unsigned int handled = 0;
1600 u16 status;
1601
1602 IPG_DEBUG_MSG("_interrupt_handler\n");
1603
1604#ifdef JUMBO_FRAME
1605 ipg_nic_rxrestore(dev);
1606#endif
1607 /* Get interrupt source information, and acknowledge
1608 * some (i.e. TxDMAComplete, RxDMAComplete, RxEarly,
1609 * IntRequested, MacControlFrame, LinkEvent) interrupts
1610 * if issued. Also, all IPG interrupts are disabled by
1611 * reading IntStatusAck.
1612 */
1613 status = ipg_r16(INT_STATUS_ACK);
1614
1615 IPG_DEBUG_MSG("IntStatusAck = %4.4x\n", status);
1616
1617 /* Shared IRQ of remove event. */
1618 if (!(status & IPG_IS_RSVD_MASK))
1619 goto out_enable;
1620
1621 handled = 1;
1622
1623 if (unlikely(!netif_running(dev)))
1624 goto out;
1625
1626 spin_lock(&sp->lock);
1627
1628 /* If RFDListEnd interrupt, restore all used RFDs. */
1629 if (status & IPG_IS_RFD_LIST_END) {
1630 IPG_DEBUG_MSG("RFDListEnd Interrupt.\n");
1631
1632 /* The RFD list end indicates an RFD was encountered
1633 * with a 0 NextPtr, or with an RFDDone bit set to 1
1634 * (indicating the RFD is not read for use by the
1635 * IPG.) Try to restore all RFDs.
1636 */
1637 ipg_nic_rxrestore(dev);
1638
1639#ifdef IPG_DEBUG
1640 /* Increment the RFDlistendCount counter. */
1641 sp->RFDlistendCount++;
1642#endif
1643 }
1644
1645 /* If RFDListEnd, RxDMAPriority, RxDMAComplete, or
1646 * IntRequested interrupt, process received frames. */
1647 if ((status & IPG_IS_RX_DMA_PRIORITY) ||
1648 (status & IPG_IS_RFD_LIST_END) ||
1649 (status & IPG_IS_RX_DMA_COMPLETE) ||
1650 (status & IPG_IS_INT_REQUESTED)) {
1651#ifdef IPG_DEBUG
1652 /* Increment the RFD list checked counter if interrupted
1653 * only to check the RFD list. */
1654 if (status & (~(IPG_IS_RX_DMA_PRIORITY | IPG_IS_RFD_LIST_END |
1655 IPG_IS_RX_DMA_COMPLETE | IPG_IS_INT_REQUESTED) &
1656 (IPG_IS_HOST_ERROR | IPG_IS_TX_DMA_COMPLETE |
1657 IPG_IS_LINK_EVENT | IPG_IS_TX_COMPLETE |
1658 IPG_IS_UPDATE_STATS)))
1659 sp->RFDListCheckedCount++;
1660#endif
1661
1662 ipg_nic_rx(dev);
1663 }
1664
1665 /* If TxDMAComplete interrupt, free used TFDs. */
1666 if (status & IPG_IS_TX_DMA_COMPLETE)
1667 ipg_nic_txfree(dev);
1668
1669 /* TxComplete interrupts indicate one of numerous actions.
1670 * Determine what action to take based on TXSTATUS register.
1671 */
1672 if (status & IPG_IS_TX_COMPLETE)
1673 ipg_nic_txcleanup(dev);
1674
1675 /* If UpdateStats interrupt, update Linux Ethernet statistics */
1676 if (status & IPG_IS_UPDATE_STATS)
1677 ipg_nic_get_stats(dev);
1678
1679 /* If HostError interrupt, reset IPG. */
1680 if (status & IPG_IS_HOST_ERROR) {
1681 IPG_DDEBUG_MSG("HostError Interrupt\n");
1682
1683 schedule_delayed_work(&sp->task, 0);
1684 }
1685
1686 /* If LinkEvent interrupt, resolve autonegotiation. */
1687 if (status & IPG_IS_LINK_EVENT) {
1688 if (ipg_config_autoneg(dev) < 0)
1689 printk(KERN_INFO "%s: Auto-negotiation error.\n",
1690 dev->name);
1691 }
1692
1693 /* If MACCtrlFrame interrupt, do nothing. */
1694 if (status & IPG_IS_MAC_CTRL_FRAME)
1695 IPG_DEBUG_MSG("MACCtrlFrame interrupt.\n");
1696
1697 /* If RxComplete interrupt, do nothing. */
1698 if (status & IPG_IS_RX_COMPLETE)
1699 IPG_DEBUG_MSG("RxComplete interrupt.\n");
1700
1701 /* If RxEarly interrupt, do nothing. */
1702 if (status & IPG_IS_RX_EARLY)
1703 IPG_DEBUG_MSG("RxEarly interrupt.\n");
1704
1705out_enable:
1706 /* Re-enable IPG interrupts. */
1707 ipg_w16(IPG_IE_TX_DMA_COMPLETE | IPG_IE_RX_DMA_COMPLETE |
1708 IPG_IE_HOST_ERROR | IPG_IE_INT_REQUESTED | IPG_IE_TX_COMPLETE |
1709 IPG_IE_LINK_EVENT | IPG_IE_UPDATE_STATS, INT_ENABLE);
1710
1711 spin_unlock(&sp->lock);
1712out:
1713 return IRQ_RETVAL(handled);
1714}
1715
1716static void ipg_rx_clear(struct ipg_nic_private *sp)
1717{
1718 unsigned int i;
1719
1720 for (i = 0; i < IPG_RFDLIST_LENGTH; i++) {
1721 if (sp->RxBuff[i]) {
1722 struct ipg_rx *rxfd = sp->rxd + i;
1723
1724 IPG_DEV_KFREE_SKB(sp->RxBuff[i]);
1725 sp->RxBuff[i] = NULL;
1726 pci_unmap_single(sp->pdev,
1727 le64_to_cpu(rxfd->frag_info & ~IPG_RFI_FRAGLEN),
1728 sp->rx_buf_sz, PCI_DMA_FROMDEVICE);
1729 }
1730 }
1731}
1732
1733static void ipg_tx_clear(struct ipg_nic_private *sp)
1734{
1735 unsigned int i;
1736
1737 for (i = 0; i < IPG_TFDLIST_LENGTH; i++) {
1738 if (sp->TxBuff[i]) {
1739 struct ipg_tx *txfd = sp->txd + i;
1740
1741 pci_unmap_single(sp->pdev,
1742 le64_to_cpu(txfd->frag_info & ~IPG_TFI_FRAGLEN),
1743 sp->TxBuff[i]->len, PCI_DMA_TODEVICE);
1744
1745 IPG_DEV_KFREE_SKB(sp->TxBuff[i]);
1746
1747 sp->TxBuff[i] = NULL;
1748 }
1749 }
1750}
1751
1752static int ipg_nic_open(struct net_device *dev)
1753{
1754 struct ipg_nic_private *sp = netdev_priv(dev);
1755 void __iomem *ioaddr = sp->ioaddr;
1756 struct pci_dev *pdev = sp->pdev;
1757 int rc;
1758
1759 IPG_DEBUG_MSG("_nic_open\n");
1760
1761 sp->rx_buf_sz = IPG_RXSUPPORT_SIZE;
1762
1763 /* Check for interrupt line conflicts, and request interrupt
1764 * line for IPG.
1765 *
1766 * IMPORTANT: Disable IPG interrupts prior to registering
1767 * IRQ.
1768 */
1769 ipg_w16(0x0000, INT_ENABLE);
1770
1771 /* Register the interrupt line to be used by the IPG within
1772 * the Linux system.
1773 */
1774 rc = request_irq(pdev->irq, &ipg_interrupt_handler, IRQF_SHARED,
1775 dev->name, dev);
1776 if (rc < 0) {
1777 printk(KERN_INFO "%s: Error when requesting interrupt.\n",
1778 dev->name);
1779 goto out;
1780 }
1781
1782 dev->irq = pdev->irq;
1783
1784 rc = -ENOMEM;
1785
1786 sp->rxd = dma_alloc_coherent(&pdev->dev, IPG_RX_RING_BYTES,
1787 &sp->rxd_map, GFP_KERNEL);
1788 if (!sp->rxd)
1789 goto err_free_irq_0;
1790
1791 sp->txd = dma_alloc_coherent(&pdev->dev, IPG_TX_RING_BYTES,
1792 &sp->txd_map, GFP_KERNEL);
1793 if (!sp->txd)
1794 goto err_free_rx_1;
1795
1796 rc = init_rfdlist(dev);
1797 if (rc < 0) {
1798 printk(KERN_INFO "%s: Error during configuration.\n",
1799 dev->name);
1800 goto err_free_tx_2;
1801 }
1802
1803 init_tfdlist(dev);
1804
1805 rc = ipg_io_config(dev);
1806 if (rc < 0) {
1807 printk(KERN_INFO "%s: Error during configuration.\n",
1808 dev->name);
1809 goto err_release_tfdlist_3;
1810 }
1811
1812 /* Resolve autonegotiation. */
1813 if (ipg_config_autoneg(dev) < 0)
1814 printk(KERN_INFO "%s: Auto-negotiation error.\n", dev->name);
1815
1816#ifdef JUMBO_FRAME
1817 /* initialize JUMBO Frame control variable */
1818 sp->Jumbo.FoundStart = 0;
1819 sp->Jumbo.CurrentSize = 0;
1820 sp->Jumbo.skb = 0;
1821 dev->mtu = IPG_TXFRAG_SIZE;
1822#endif
1823
1824 /* Enable transmit and receive operation of the IPG. */
1825 ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_RX_ENABLE | IPG_MC_TX_ENABLE) &
1826 IPG_MC_RSVD_MASK, MAC_CTRL);
1827
1828 netif_start_queue(dev);
1829out:
1830 return rc;
1831
1832err_release_tfdlist_3:
1833 ipg_tx_clear(sp);
1834 ipg_rx_clear(sp);
1835err_free_tx_2:
1836 dma_free_coherent(&pdev->dev, IPG_TX_RING_BYTES, sp->txd, sp->txd_map);
1837err_free_rx_1:
1838 dma_free_coherent(&pdev->dev, IPG_RX_RING_BYTES, sp->rxd, sp->rxd_map);
1839err_free_irq_0:
1840 free_irq(pdev->irq, dev);
1841 goto out;
1842}
1843
1844static int ipg_nic_stop(struct net_device *dev)
1845{
1846 struct ipg_nic_private *sp = netdev_priv(dev);
1847 void __iomem *ioaddr = sp->ioaddr;
1848 struct pci_dev *pdev = sp->pdev;
1849
1850 IPG_DEBUG_MSG("_nic_stop\n");
1851
1852 netif_stop_queue(dev);
1853
1854 IPG_DDEBUG_MSG("RFDlistendCount = %i\n", sp->RFDlistendCount);
1855 IPG_DDEBUG_MSG("RFDListCheckedCount = %i\n", sp->rxdCheckedCount);
1856 IPG_DDEBUG_MSG("EmptyRFDListCount = %i\n", sp->EmptyRFDListCount);
1857 IPG_DUMPTFDLIST(dev);
1858
1859 do {
1860 (void) ipg_r16(INT_STATUS_ACK);
1861
1862 ipg_reset(dev, IPG_AC_GLOBAL_RESET | IPG_AC_HOST | IPG_AC_DMA);
1863
1864 synchronize_irq(pdev->irq);
1865 } while (ipg_r16(INT_ENABLE) & IPG_IE_RSVD_MASK);
1866
1867 ipg_rx_clear(sp);
1868
1869 ipg_tx_clear(sp);
1870
1871 pci_free_consistent(pdev, IPG_RX_RING_BYTES, sp->rxd, sp->rxd_map);
1872 pci_free_consistent(pdev, IPG_TX_RING_BYTES, sp->txd, sp->txd_map);
1873
1874 free_irq(pdev->irq, dev);
1875
1876 return 0;
1877}
1878
1879static int ipg_nic_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1880{
1881 struct ipg_nic_private *sp = netdev_priv(dev);
1882 void __iomem *ioaddr = sp->ioaddr;
1883 unsigned int entry = sp->tx_current % IPG_TFDLIST_LENGTH;
1884 unsigned long flags;
1885 struct ipg_tx *txfd;
1886
1887 IPG_DDEBUG_MSG("_nic_hard_start_xmit\n");
1888
1889 /* If in 10Mbps mode, stop the transmit queue so
1890 * no more transmit frames are accepted.
1891 */
1892 if (sp->tenmbpsmode)
1893 netif_stop_queue(dev);
1894
1895 if (sp->ResetCurrentTFD) {
1896 sp->ResetCurrentTFD = 0;
1897 entry = 0;
1898 }
1899
1900 txfd = sp->txd + entry;
1901
1902 sp->TxBuff[entry] = skb;
1903
1904 /* Clear all TFC fields, except TFDDONE. */
1905 txfd->tfc = cpu_to_le64(IPG_TFC_TFDDONE);
1906
1907 /* Specify the TFC field within the TFD. */
1908 txfd->tfc |= cpu_to_le64(IPG_TFC_WORDALIGNDISABLED |
1909 (IPG_TFC_FRAMEID & cpu_to_le64(sp->tx_current)) |
1910 (IPG_TFC_FRAGCOUNT & (1 << 24)));
1911
1912 /* Request TxComplete interrupts at an interval defined
1913 * by the constant IPG_FRAMESBETWEENTXCOMPLETES.
1914 * Request TxComplete interrupt for every frame
1915 * if in 10Mbps mode to accomodate problem with 10Mbps
1916 * processing.
1917 */
1918 if (sp->tenmbpsmode)
1919 txfd->tfc |= cpu_to_le64(IPG_TFC_TXINDICATE);
1920 else if (!((sp->tx_current - sp->tx_dirty + 1) >
1921 IPG_FRAMESBETWEENTXDMACOMPLETES)) {
1922 txfd->tfc |= cpu_to_le64(IPG_TFC_TXDMAINDICATE);
1923 }
1924 /* Based on compilation option, determine if FCS is to be
1925 * appended to transmit frame by IPG.
1926 */
1927 if (!(IPG_APPEND_FCS_ON_TX))
1928 txfd->tfc |= cpu_to_le64(IPG_TFC_FCSAPPENDDISABLE);
1929
1930 /* Based on compilation option, determine if IP, TCP and/or
1931 * UDP checksums are to be added to transmit frame by IPG.
1932 */
1933 if (IPG_ADD_IPCHECKSUM_ON_TX)
1934 txfd->tfc |= cpu_to_le64(IPG_TFC_IPCHECKSUMENABLE);
1935
1936 if (IPG_ADD_TCPCHECKSUM_ON_TX)
1937 txfd->tfc |= cpu_to_le64(IPG_TFC_TCPCHECKSUMENABLE);
1938
1939 if (IPG_ADD_UDPCHECKSUM_ON_TX)
1940 txfd->tfc |= cpu_to_le64(IPG_TFC_UDPCHECKSUMENABLE);
1941
1942 /* Based on compilation option, determine if VLAN tag info is to be
1943 * inserted into transmit frame by IPG.
1944 */
1945 if (IPG_INSERT_MANUAL_VLAN_TAG) {
1946 txfd->tfc |= cpu_to_le64(IPG_TFC_VLANTAGINSERT |
1947 ((u64) IPG_MANUAL_VLAN_VID << 32) |
1948 ((u64) IPG_MANUAL_VLAN_CFI << 44) |
1949 ((u64) IPG_MANUAL_VLAN_USERPRIORITY << 45));
1950 }
1951
1952 /* The fragment start location within system memory is defined
1953 * by the sk_buff structure's data field. The physical address
1954 * of this location within the system's virtual memory space
1955 * is determined using the IPG_HOST2BUS_MAP function.
1956 */
1957 txfd->frag_info = cpu_to_le64(pci_map_single(sp->pdev, skb->data,
1958 skb->len, PCI_DMA_TODEVICE));
1959
1960 /* The length of the fragment within system memory is defined by
1961 * the sk_buff structure's len field.
1962 */
1963 txfd->frag_info |= cpu_to_le64(IPG_TFI_FRAGLEN &
1964 ((u64) (skb->len & 0xffff) << 48));
1965
1966 /* Clear the TFDDone bit last to indicate the TFD is ready
1967 * for transfer to the IPG.
1968 */
1969 txfd->tfc &= cpu_to_le64(~IPG_TFC_TFDDONE);
1970
1971 spin_lock_irqsave(&sp->lock, flags);
1972
1973 sp->tx_current++;
1974
1975 mmiowb();
1976
1977 ipg_w32(IPG_DC_TX_DMA_POLL_NOW, DMA_CTRL);
1978
1979 if (sp->tx_current == (sp->tx_dirty + IPG_TFDLIST_LENGTH))
1980 netif_wake_queue(dev);
1981
1982 spin_unlock_irqrestore(&sp->lock, flags);
1983
1984 return NETDEV_TX_OK;
1985}
1986
1987static void ipg_set_phy_default_param(unsigned char rev,
1988 struct net_device *dev, int phy_address)
1989{
1990 unsigned short length;
1991 unsigned char revision;
1992 unsigned short *phy_param;
1993 unsigned short address, value;
1994
1995 phy_param = &DefaultPhyParam[0];
1996 length = *phy_param & 0x00FF;
1997 revision = (unsigned char)((*phy_param) >> 8);
1998 phy_param++;
1999 while (length != 0) {
2000 if (rev == revision) {
2001 while (length > 1) {
2002 address = *phy_param;
2003 value = *(phy_param + 1);
2004 phy_param += 2;
2005 mdio_write(dev, phy_address, address, value);
2006 length -= 4;
2007 }
2008 break;
2009 } else {
2010 phy_param += length / 2;
2011 length = *phy_param & 0x00FF;
2012 revision = (unsigned char)((*phy_param) >> 8);
2013 phy_param++;
2014 }
2015 }
2016}
2017
2018/* JES20040127EEPROM */
2019static int read_eeprom(struct net_device *dev, int eep_addr)
2020{
2021 void __iomem *ioaddr = ipg_ioaddr(dev);
2022 unsigned int i;
2023 int ret = 0;
2024 u16 value;
2025
2026 value = IPG_EC_EEPROM_READOPCODE | (eep_addr & 0xff);
2027 ipg_w16(value, EEPROM_CTRL);
2028
2029 for (i = 0; i < 1000; i++) {
2030 u16 data;
2031
2032 mdelay(10);
2033 data = ipg_r16(EEPROM_CTRL);
2034 if (!(data & IPG_EC_EEPROM_BUSY)) {
2035 ret = ipg_r16(EEPROM_DATA);
2036 break;
2037 }
2038 }
2039 return ret;
2040}
2041
2042static void ipg_init_mii(struct net_device *dev)
2043{
2044 struct ipg_nic_private *sp = netdev_priv(dev);
2045 struct mii_if_info *mii_if = &sp->mii_if;
2046 int phyaddr;
2047
2048 mii_if->dev = dev;
2049 mii_if->mdio_read = mdio_read;
2050 mii_if->mdio_write = mdio_write;
2051 mii_if->phy_id_mask = 0x1f;
2052 mii_if->reg_num_mask = 0x1f;
2053
2054 mii_if->phy_id = phyaddr = ipg_find_phyaddr(dev);
2055
2056 if (phyaddr != 0x1f) {
2057 u16 mii_phyctrl, mii_1000cr;
2058 u8 revisionid = 0;
2059
2060 mii_1000cr = mdio_read(dev, phyaddr, MII_CTRL1000);
2061 mii_1000cr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF |
2062 GMII_PHY_1000BASETCONTROL_PreferMaster;
2063 mdio_write(dev, phyaddr, MII_CTRL1000, mii_1000cr);
2064
2065 mii_phyctrl = mdio_read(dev, phyaddr, MII_BMCR);
2066
2067 /* Set default phyparam */
2068 pci_read_config_byte(sp->pdev, PCI_REVISION_ID, &revisionid);
2069 ipg_set_phy_default_param(revisionid, dev, phyaddr);
2070
2071 /* Reset PHY */
2072 mii_phyctrl |= BMCR_RESET | BMCR_ANRESTART;
2073 mdio_write(dev, phyaddr, MII_BMCR, mii_phyctrl);
2074
2075 }
2076}
2077
2078static int ipg_hw_init(struct net_device *dev)
2079{
2080 struct ipg_nic_private *sp = netdev_priv(dev);
2081 void __iomem *ioaddr = sp->ioaddr;
2082 unsigned int i;
2083 int rc;
2084
2085 /* Read/Write and Reset EEPROM Value Jesse20040128EEPROM_VALUE */
2086 /* Read LED Mode Configuration from EEPROM */
2087 sp->LED_Mode = read_eeprom(dev, 6);
2088
2089 /* Reset all functions within the IPG. Do not assert
2090 * RST_OUT as not compatible with some PHYs.
2091 */
2092 rc = ipg_reset(dev, IPG_RESET_MASK);
2093 if (rc < 0)
2094 goto out;
2095
2096 ipg_init_mii(dev);
2097
2098 /* Read MAC Address from EEPROM */
2099 for (i = 0; i < 3; i++)
2100 sp->station_addr[i] = read_eeprom(dev, 16 + i);
2101
2102 for (i = 0; i < 3; i++)
2103 ipg_w16(sp->station_addr[i], STATION_ADDRESS_0 + 2*i);
2104
2105 /* Set station address in ethernet_device structure. */
2106 dev->dev_addr[0] = ipg_r16(STATION_ADDRESS_0) & 0x00ff;
2107 dev->dev_addr[1] = (ipg_r16(STATION_ADDRESS_0) & 0xff00) >> 8;
2108 dev->dev_addr[2] = ipg_r16(STATION_ADDRESS_1) & 0x00ff;
2109 dev->dev_addr[3] = (ipg_r16(STATION_ADDRESS_1) & 0xff00) >> 8;
2110 dev->dev_addr[4] = ipg_r16(STATION_ADDRESS_2) & 0x00ff;
2111 dev->dev_addr[5] = (ipg_r16(STATION_ADDRESS_2) & 0xff00) >> 8;
2112out:
2113 return rc;
2114}
2115
2116static int ipg_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2117{
2118 struct ipg_nic_private *sp = netdev_priv(dev);
2119 int rc;
2120
2121 mutex_lock(&sp->mii_mutex);
2122 rc = generic_mii_ioctl(&sp->mii_if, if_mii(ifr), cmd, NULL);
2123 mutex_unlock(&sp->mii_mutex);
2124
2125 return rc;
2126}
2127
2128static int ipg_nic_change_mtu(struct net_device *dev, int new_mtu)
2129{
2130 /* Function to accomodate changes to Maximum Transfer Unit
2131 * (or MTU) of IPG NIC. Cannot use default function since
2132 * the default will not allow for MTU > 1500 bytes.
2133 */
2134
2135 IPG_DEBUG_MSG("_nic_change_mtu\n");
2136
2137 /* Check that the new MTU value is between 68 (14 byte header, 46
2138 * byte payload, 4 byte FCS) and IPG_MAX_RXFRAME_SIZE, which
2139 * corresponds to the MAXFRAMESIZE register in the IPG.
2140 */
2141 if ((new_mtu < 68) || (new_mtu > IPG_MAX_RXFRAME_SIZE))
2142 return -EINVAL;
2143
2144 dev->mtu = new_mtu;
2145
2146 return 0;
2147}
2148
2149static int ipg_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2150{
2151 struct ipg_nic_private *sp = netdev_priv(dev);
2152 int rc;
2153
2154 mutex_lock(&sp->mii_mutex);
2155 rc = mii_ethtool_gset(&sp->mii_if, cmd);
2156 mutex_unlock(&sp->mii_mutex);
2157
2158 return rc;
2159}
2160
2161static int ipg_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2162{
2163 struct ipg_nic_private *sp = netdev_priv(dev);
2164 int rc;
2165
2166 mutex_lock(&sp->mii_mutex);
2167 rc = mii_ethtool_sset(&sp->mii_if, cmd);
2168 mutex_unlock(&sp->mii_mutex);
2169
2170 return rc;
2171}
2172
2173static int ipg_nway_reset(struct net_device *dev)
2174{
2175 struct ipg_nic_private *sp = netdev_priv(dev);
2176 int rc;
2177
2178 mutex_lock(&sp->mii_mutex);
2179 rc = mii_nway_restart(&sp->mii_if);
2180 mutex_unlock(&sp->mii_mutex);
2181
2182 return rc;
2183}
2184
2185static struct ethtool_ops ipg_ethtool_ops = {
2186 .get_settings = ipg_get_settings,
2187 .set_settings = ipg_set_settings,
2188 .nway_reset = ipg_nway_reset,
2189};
2190
2191static void ipg_remove(struct pci_dev *pdev)
2192{
2193 struct net_device *dev = pci_get_drvdata(pdev);
2194 struct ipg_nic_private *sp = netdev_priv(dev);
2195
2196 IPG_DEBUG_MSG("_remove\n");
2197
2198 /* Un-register Ethernet device. */
2199 unregister_netdev(dev);
2200
2201 pci_iounmap(pdev, sp->ioaddr);
2202
2203 pci_release_regions(pdev);
2204
2205 free_netdev(dev);
2206 pci_disable_device(pdev);
2207 pci_set_drvdata(pdev, NULL);
2208}
2209
2210static int __devinit ipg_probe(struct pci_dev *pdev,
2211 const struct pci_device_id *id)
2212{
2213 unsigned int i = id->driver_data;
2214 struct ipg_nic_private *sp;
2215 struct net_device *dev;
2216 void __iomem *ioaddr;
2217 int rc;
2218
2219 rc = pci_enable_device(pdev);
2220 if (rc < 0)
2221 goto out;
2222
2223 printk(KERN_INFO "%s: %s\n", pci_name(pdev), ipg_brand_name[i]);
2224
2225 pci_set_master(pdev);
2226
2227 rc = pci_set_dma_mask(pdev, DMA_40BIT_MASK);
2228 if (rc < 0) {
2229 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
2230 if (rc < 0) {
2231 printk(KERN_ERR "%s: DMA config failed.\n",
2232 pci_name(pdev));
2233 goto err_disable_0;
2234 }
2235 }
2236
2237 /*
2238 * Initialize net device.
2239 */
2240 dev = alloc_etherdev(sizeof(struct ipg_nic_private));
2241 if (!dev) {
2242 printk(KERN_ERR "%s: alloc_etherdev failed\n", pci_name(pdev));
2243 rc = -ENOMEM;
2244 goto err_disable_0;
2245 }
2246
2247 sp = netdev_priv(dev);
2248 spin_lock_init(&sp->lock);
2249 mutex_init(&sp->mii_mutex);
2250
2251 /* Declare IPG NIC functions for Ethernet device methods.
2252 */
2253 dev->open = &ipg_nic_open;
2254 dev->stop = &ipg_nic_stop;
2255 dev->hard_start_xmit = &ipg_nic_hard_start_xmit;
2256 dev->get_stats = &ipg_nic_get_stats;
2257 dev->set_multicast_list = &ipg_nic_set_multicast_list;
2258 dev->do_ioctl = ipg_ioctl;
2259 dev->tx_timeout = ipg_tx_timeout;
2260 dev->change_mtu = &ipg_nic_change_mtu;
2261
2262 SET_NETDEV_DEV(dev, &pdev->dev);
2263 SET_ETHTOOL_OPS(dev, &ipg_ethtool_ops);
2264
2265 rc = pci_request_regions(pdev, DRV_NAME);
2266 if (rc)
2267 goto err_free_dev_1;
2268
2269 ioaddr = pci_iomap(pdev, 1, pci_resource_len(pdev, 1));
2270 if (!ioaddr) {
2271 printk(KERN_ERR "%s cannot map MMIO\n", pci_name(pdev));
2272 rc = -EIO;
2273 goto err_release_regions_2;
2274 }
2275
2276 /* Save the pointer to the PCI device information. */
2277 sp->ioaddr = ioaddr;
2278 sp->pdev = pdev;
2279 sp->dev = dev;
2280
2281 INIT_DELAYED_WORK(&sp->task, ipg_reset_after_host_error);
2282
2283 pci_set_drvdata(pdev, dev);
2284
2285 rc = ipg_hw_init(dev);
2286 if (rc < 0)
2287 goto err_unmap_3;
2288
2289 rc = register_netdev(dev);
2290 if (rc < 0)
2291 goto err_unmap_3;
2292
2293 printk(KERN_INFO "Ethernet device registered as: %s\n", dev->name);
2294out:
2295 return rc;
2296
2297err_unmap_3:
2298 pci_iounmap(pdev, ioaddr);
2299err_release_regions_2:
2300 pci_release_regions(pdev);
2301err_free_dev_1:
2302 free_netdev(dev);
2303err_disable_0:
2304 pci_disable_device(pdev);
2305 goto out;
2306}
2307
2308static struct pci_driver ipg_pci_driver = {
2309 .name = IPG_DRIVER_NAME,
2310 .id_table = ipg_pci_tbl,
2311 .probe = ipg_probe,
2312 .remove = __devexit_p(ipg_remove),
2313};
2314
2315static int __init ipg_init_module(void)
2316{
2317 return pci_register_driver(&ipg_pci_driver);
2318}
2319
2320static void __exit ipg_exit_module(void)
2321{
2322 pci_unregister_driver(&ipg_pci_driver);
2323}
2324
2325module_init(ipg_init_module);
2326module_exit(ipg_exit_module);
diff --git a/drivers/net/ipg.h b/drivers/net/ipg.h
new file mode 100644
index 000000000000..1952d0dfd314
--- /dev/null
+++ b/drivers/net/ipg.h
@@ -0,0 +1,856 @@
1/*
2 *
3 * ipg.h
4 *
5 * Include file for Gigabit Ethernet device driver for Network
6 * Interface Cards (NICs) utilizing the Tamarack Microelectronics
7 * Inc. IPG Gigabit or Triple Speed Ethernet Media Access
8 * Controller.
9 *
10 * Craig Rich
11 * Sundance Technology, Inc.
12 * 1485 Saratoga Avenue
13 * Suite 200
14 * San Jose, CA 95129
15 * 408 873 4117
16 * www.sundanceti.com
17 * craig_rich@sundanceti.com
18 */
19#ifndef __LINUX_IPG_H
20#define __LINUX_IPG_H
21
22#include <linux/version.h>
23#include <linux/module.h>
24
25#include <linux/kernel.h>
26#include <linux/pci.h>
27#include <linux/ioport.h>
28#include <linux/errno.h>
29#include <asm/io.h>
30#include <linux/delay.h>
31#include <linux/types.h>
32#include <linux/netdevice.h>
33#include <linux/etherdevice.h>
34#include <linux/init.h>
35#include <linux/skbuff.h>
36#include <linux/version.h>
37#include <asm/bitops.h>
38/*#include <asm/spinlock.h>*/
39
40#define DrvVer "2.09d"
41
42#define IPG_DEV_KFREE_SKB(skb) dev_kfree_skb_irq(skb)
43
44/*
45 * Constants
46 */
47
48/* GMII based PHY IDs */
49#define NS 0x2000
50#define MARVELL 0x0141
51#define ICPLUS_PHY 0x243
52
53/* NIC Physical Layer Device MII register fields. */
54#define MII_PHY_SELECTOR_IEEE8023 0x0001
55#define MII_PHY_TECHABILITYFIELD 0x1FE0
56
57/* GMII_PHY_1000 need to set to prefer master */
58#define GMII_PHY_1000BASETCONTROL_PreferMaster 0x0400
59
60/* NIC Physical Layer Device GMII constants. */
61#define GMII_PREAMBLE 0xFFFFFFFF
62#define GMII_ST 0x1
63#define GMII_READ 0x2
64#define GMII_WRITE 0x1
65#define GMII_TA_READ_MASK 0x1
66#define GMII_TA_WRITE 0x2
67
68/* I/O register offsets. */
69enum ipg_regs {
70 DMA_CTRL = 0x00,
71 RX_DMA_STATUS = 0x08, // Unused + reserved
72 TFD_LIST_PTR_0 = 0x10,
73 TFD_LIST_PTR_1 = 0x14,
74 TX_DMA_BURST_THRESH = 0x18,
75 TX_DMA_URGENT_THRESH = 0x19,
76 TX_DMA_POLL_PERIOD = 0x1a,
77 RFD_LIST_PTR_0 = 0x1c,
78 RFD_LIST_PTR_1 = 0x20,
79 RX_DMA_BURST_THRESH = 0x24,
80 RX_DMA_URGENT_THRESH = 0x25,
81 RX_DMA_POLL_PERIOD = 0x26,
82 DEBUG_CTRL = 0x2c,
83 ASIC_CTRL = 0x30,
84 FIFO_CTRL = 0x38, // Unused
85 FLOW_OFF_THRESH = 0x3c,
86 FLOW_ON_THRESH = 0x3e,
87 EEPROM_DATA = 0x48,
88 EEPROM_CTRL = 0x4a,
89 EXPROM_ADDR = 0x4c, // Unused
90 EXPROM_DATA = 0x50, // Unused
91 WAKE_EVENT = 0x51, // Unused
92 COUNTDOWN = 0x54, // Unused
93 INT_STATUS_ACK = 0x5a,
94 INT_ENABLE = 0x5c,
95 INT_STATUS = 0x5e, // Unused
96 TX_STATUS = 0x60,
97 MAC_CTRL = 0x6c,
98 VLAN_TAG = 0x70, // Unused
99 PHY_SET = 0x75, // JES20040127EEPROM
100 PHY_CTRL = 0x76,
101 STATION_ADDRESS_0 = 0x78,
102 STATION_ADDRESS_1 = 0x7a,
103 STATION_ADDRESS_2 = 0x7c,
104 MAX_FRAME_SIZE = 0x86,
105 RECEIVE_MODE = 0x88,
106 HASHTABLE_0 = 0x8c,
107 HASHTABLE_1 = 0x90,
108 RMON_STATISTICS_MASK = 0x98,
109 STATISTICS_MASK = 0x9c,
110 RX_JUMBO_FRAMES = 0xbc, // Unused
111 TCP_CHECKSUM_ERRORS = 0xc0, // Unused
112 IP_CHECKSUM_ERRORS = 0xc2, // Unused
113 UDP_CHECKSUM_ERRORS = 0xc4, // Unused
114 TX_JUMBO_FRAMES = 0xf4 // Unused
115};
116
117/* Ethernet MIB statistic register offsets. */
118#define IPG_OCTETRCVOK 0xA8
119#define IPG_MCSTOCTETRCVDOK 0xAC
120#define IPG_BCSTOCTETRCVOK 0xB0
121#define IPG_FRAMESRCVDOK 0xB4
122#define IPG_MCSTFRAMESRCVDOK 0xB8
123#define IPG_BCSTFRAMESRCVDOK 0xBE
124#define IPG_MACCONTROLFRAMESRCVD 0xC6
125#define IPG_FRAMETOOLONGERRRORS 0xC8
126#define IPG_INRANGELENGTHERRORS 0xCA
127#define IPG_FRAMECHECKSEQERRORS 0xCC
128#define IPG_FRAMESLOSTRXERRORS 0xCE
129#define IPG_OCTETXMTOK 0xD0
130#define IPG_MCSTOCTETXMTOK 0xD4
131#define IPG_BCSTOCTETXMTOK 0xD8
132#define IPG_FRAMESXMTDOK 0xDC
133#define IPG_MCSTFRAMESXMTDOK 0xE0
134#define IPG_FRAMESWDEFERREDXMT 0xE4
135#define IPG_LATECOLLISIONS 0xE8
136#define IPG_MULTICOLFRAMES 0xEC
137#define IPG_SINGLECOLFRAMES 0xF0
138#define IPG_BCSTFRAMESXMTDOK 0xF6
139#define IPG_CARRIERSENSEERRORS 0xF8
140#define IPG_MACCONTROLFRAMESXMTDOK 0xFA
141#define IPG_FRAMESABORTXSCOLLS 0xFC
142#define IPG_FRAMESWEXDEFERRAL 0xFE
143
144/* RMON statistic register offsets. */
145#define IPG_ETHERSTATSCOLLISIONS 0x100
146#define IPG_ETHERSTATSOCTETSTRANSMIT 0x104
147#define IPG_ETHERSTATSPKTSTRANSMIT 0x108
148#define IPG_ETHERSTATSPKTS64OCTESTSTRANSMIT 0x10C
149#define IPG_ETHERSTATSPKTS65TO127OCTESTSTRANSMIT 0x110
150#define IPG_ETHERSTATSPKTS128TO255OCTESTSTRANSMIT 0x114
151#define IPG_ETHERSTATSPKTS256TO511OCTESTSTRANSMIT 0x118
152#define IPG_ETHERSTATSPKTS512TO1023OCTESTSTRANSMIT 0x11C
153#define IPG_ETHERSTATSPKTS1024TO1518OCTESTSTRANSMIT 0x120
154#define IPG_ETHERSTATSCRCALIGNERRORS 0x124
155#define IPG_ETHERSTATSUNDERSIZEPKTS 0x128
156#define IPG_ETHERSTATSFRAGMENTS 0x12C
157#define IPG_ETHERSTATSJABBERS 0x130
158#define IPG_ETHERSTATSOCTETS 0x134
159#define IPG_ETHERSTATSPKTS 0x138
160#define IPG_ETHERSTATSPKTS64OCTESTS 0x13C
161#define IPG_ETHERSTATSPKTS65TO127OCTESTS 0x140
162#define IPG_ETHERSTATSPKTS128TO255OCTESTS 0x144
163#define IPG_ETHERSTATSPKTS256TO511OCTESTS 0x148
164#define IPG_ETHERSTATSPKTS512TO1023OCTESTS 0x14C
165#define IPG_ETHERSTATSPKTS1024TO1518OCTESTS 0x150
166
167/* RMON statistic register equivalents. */
168#define IPG_ETHERSTATSMULTICASTPKTSTRANSMIT 0xE0
169#define IPG_ETHERSTATSBROADCASTPKTSTRANSMIT 0xF6
170#define IPG_ETHERSTATSMULTICASTPKTS 0xB8
171#define IPG_ETHERSTATSBROADCASTPKTS 0xBE
172#define IPG_ETHERSTATSOVERSIZEPKTS 0xC8
173#define IPG_ETHERSTATSDROPEVENTS 0xCE
174
175/* Serial EEPROM offsets */
176#define IPG_EEPROM_CONFIGPARAM 0x00
177#define IPG_EEPROM_ASICCTRL 0x01
178#define IPG_EEPROM_SUBSYSTEMVENDORID 0x02
179#define IPG_EEPROM_SUBSYSTEMID 0x03
180#define IPG_EEPROM_STATIONADDRESS0 0x10
181#define IPG_EEPROM_STATIONADDRESS1 0x11
182#define IPG_EEPROM_STATIONADDRESS2 0x12
183
184/* Register & data structure bit masks */
185
186/* PCI register masks. */
187
188/* IOBaseAddress */
189#define IPG_PIB_RSVD_MASK 0xFFFFFE01
190#define IPG_PIB_IOBASEADDRESS 0xFFFFFF00
191#define IPG_PIB_IOBASEADDRIND 0x00000001
192
193/* MemBaseAddress */
194#define IPG_PMB_RSVD_MASK 0xFFFFFE07
195#define IPG_PMB_MEMBASEADDRIND 0x00000001
196#define IPG_PMB_MEMMAPTYPE 0x00000006
197#define IPG_PMB_MEMMAPTYPE0 0x00000002
198#define IPG_PMB_MEMMAPTYPE1 0x00000004
199#define IPG_PMB_MEMBASEADDRESS 0xFFFFFE00
200
201/* ConfigStatus */
202#define IPG_CS_RSVD_MASK 0xFFB0
203#define IPG_CS_CAPABILITIES 0x0010
204#define IPG_CS_66MHZCAPABLE 0x0020
205#define IPG_CS_FASTBACK2BACK 0x0080
206#define IPG_CS_DATAPARITYREPORTED 0x0100
207#define IPG_CS_DEVSELTIMING 0x0600
208#define IPG_CS_SIGNALEDTARGETABORT 0x0800
209#define IPG_CS_RECEIVEDTARGETABORT 0x1000
210#define IPG_CS_RECEIVEDMASTERABORT 0x2000
211#define IPG_CS_SIGNALEDSYSTEMERROR 0x4000
212#define IPG_CS_DETECTEDPARITYERROR 0x8000
213
214/* TFD data structure masks. */
215
216/* TFDList, TFC */
217#define IPG_TFC_RSVD_MASK 0x0000FFFF9FFFFFFF
218#define IPG_TFC_FRAMEID 0x000000000000FFFF
219#define IPG_TFC_WORDALIGN 0x0000000000030000
220#define IPG_TFC_WORDALIGNTODWORD 0x0000000000000000
221#define IPG_TFC_WORDALIGNTOWORD 0x0000000000020000
222#define IPG_TFC_WORDALIGNDISABLED 0x0000000000030000
223#define IPG_TFC_TCPCHECKSUMENABLE 0x0000000000040000
224#define IPG_TFC_UDPCHECKSUMENABLE 0x0000000000080000
225#define IPG_TFC_IPCHECKSUMENABLE 0x0000000000100000
226#define IPG_TFC_FCSAPPENDDISABLE 0x0000000000200000
227#define IPG_TFC_TXINDICATE 0x0000000000400000
228#define IPG_TFC_TXDMAINDICATE 0x0000000000800000
229#define IPG_TFC_FRAGCOUNT 0x000000000F000000
230#define IPG_TFC_VLANTAGINSERT 0x0000000010000000
231#define IPG_TFC_TFDDONE 0x0000000080000000
232#define IPG_TFC_VID 0x00000FFF00000000
233#define IPG_TFC_CFI 0x0000100000000000
234#define IPG_TFC_USERPRIORITY 0x0000E00000000000
235
236/* TFDList, FragInfo */
237#define IPG_TFI_RSVD_MASK 0xFFFF00FFFFFFFFFF
238#define IPG_TFI_FRAGADDR 0x000000FFFFFFFFFF
239#define IPG_TFI_FRAGLEN 0xFFFF000000000000LL
240
241/* RFD data structure masks. */
242
243/* RFDList, RFS */
244#define IPG_RFS_RSVD_MASK 0x0000FFFFFFFFFFFF
245#define IPG_RFS_RXFRAMELEN 0x000000000000FFFF
246#define IPG_RFS_RXFIFOOVERRUN 0x0000000000010000
247#define IPG_RFS_RXRUNTFRAME 0x0000000000020000
248#define IPG_RFS_RXALIGNMENTERROR 0x0000000000040000
249#define IPG_RFS_RXFCSERROR 0x0000000000080000
250#define IPG_RFS_RXOVERSIZEDFRAME 0x0000000000100000
251#define IPG_RFS_RXLENGTHERROR 0x0000000000200000
252#define IPG_RFS_VLANDETECTED 0x0000000000400000
253#define IPG_RFS_TCPDETECTED 0x0000000000800000
254#define IPG_RFS_TCPERROR 0x0000000001000000
255#define IPG_RFS_UDPDETECTED 0x0000000002000000
256#define IPG_RFS_UDPERROR 0x0000000004000000
257#define IPG_RFS_IPDETECTED 0x0000000008000000
258#define IPG_RFS_IPERROR 0x0000000010000000
259#define IPG_RFS_FRAMESTART 0x0000000020000000
260#define IPG_RFS_FRAMEEND 0x0000000040000000
261#define IPG_RFS_RFDDONE 0x0000000080000000
262#define IPG_RFS_TCI 0x0000FFFF00000000
263
264/* RFDList, FragInfo */
265#define IPG_RFI_RSVD_MASK 0xFFFF00FFFFFFFFFF
266#define IPG_RFI_FRAGADDR 0x000000FFFFFFFFFF
267#define IPG_RFI_FRAGLEN 0xFFFF000000000000LL
268
269/* I/O Register masks. */
270
271/* RMON Statistics Mask */
272#define IPG_RZ_ALL 0x0FFFFFFF
273
274/* Statistics Mask */
275#define IPG_SM_ALL 0x0FFFFFFF
276#define IPG_SM_OCTETRCVOK_FRAMESRCVDOK 0x00000001
277#define IPG_SM_MCSTOCTETRCVDOK_MCSTFRAMESRCVDOK 0x00000002
278#define IPG_SM_BCSTOCTETRCVDOK_BCSTFRAMESRCVDOK 0x00000004
279#define IPG_SM_RXJUMBOFRAMES 0x00000008
280#define IPG_SM_TCPCHECKSUMERRORS 0x00000010
281#define IPG_SM_IPCHECKSUMERRORS 0x00000020
282#define IPG_SM_UDPCHECKSUMERRORS 0x00000040
283#define IPG_SM_MACCONTROLFRAMESRCVD 0x00000080
284#define IPG_SM_FRAMESTOOLONGERRORS 0x00000100
285#define IPG_SM_INRANGELENGTHERRORS 0x00000200
286#define IPG_SM_FRAMECHECKSEQERRORS 0x00000400
287#define IPG_SM_FRAMESLOSTRXERRORS 0x00000800
288#define IPG_SM_OCTETXMTOK_FRAMESXMTOK 0x00001000
289#define IPG_SM_MCSTOCTETXMTOK_MCSTFRAMESXMTDOK 0x00002000
290#define IPG_SM_BCSTOCTETXMTOK_BCSTFRAMESXMTDOK 0x00004000
291#define IPG_SM_FRAMESWDEFERREDXMT 0x00008000
292#define IPG_SM_LATECOLLISIONS 0x00010000
293#define IPG_SM_MULTICOLFRAMES 0x00020000
294#define IPG_SM_SINGLECOLFRAMES 0x00040000
295#define IPG_SM_TXJUMBOFRAMES 0x00080000
296#define IPG_SM_CARRIERSENSEERRORS 0x00100000
297#define IPG_SM_MACCONTROLFRAMESXMTD 0x00200000
298#define IPG_SM_FRAMESABORTXSCOLLS 0x00400000
299#define IPG_SM_FRAMESWEXDEFERAL 0x00800000
300
301/* Countdown */
302#define IPG_CD_RSVD_MASK 0x0700FFFF
303#define IPG_CD_COUNT 0x0000FFFF
304#define IPG_CD_COUNTDOWNSPEED 0x01000000
305#define IPG_CD_COUNTDOWNMODE 0x02000000
306#define IPG_CD_COUNTINTENABLED 0x04000000
307
308/* TxDMABurstThresh */
309#define IPG_TB_RSVD_MASK 0xFF
310
311/* TxDMAUrgentThresh */
312#define IPG_TU_RSVD_MASK 0xFF
313
314/* TxDMAPollPeriod */
315#define IPG_TP_RSVD_MASK 0xFF
316
317/* RxDMAUrgentThresh */
318#define IPG_RU_RSVD_MASK 0xFF
319
320/* RxDMAPollPeriod */
321#define IPG_RP_RSVD_MASK 0xFF
322
323/* ReceiveMode */
324#define IPG_RM_RSVD_MASK 0x3F
325#define IPG_RM_RECEIVEUNICAST 0x01
326#define IPG_RM_RECEIVEMULTICAST 0x02
327#define IPG_RM_RECEIVEBROADCAST 0x04
328#define IPG_RM_RECEIVEALLFRAMES 0x08
329#define IPG_RM_RECEIVEMULTICASTHASH 0x10
330#define IPG_RM_RECEIVEIPMULTICAST 0x20
331
332/* PhySet JES20040127EEPROM*/
333#define IPG_PS_MEM_LENB9B 0x01
334#define IPG_PS_MEM_LEN9 0x02
335#define IPG_PS_NON_COMPDET 0x04
336
337/* PhyCtrl */
338#define IPG_PC_RSVD_MASK 0xFF
339#define IPG_PC_MGMTCLK_LO 0x00
340#define IPG_PC_MGMTCLK_HI 0x01
341#define IPG_PC_MGMTCLK 0x01
342#define IPG_PC_MGMTDATA 0x02
343#define IPG_PC_MGMTDIR 0x04
344#define IPG_PC_DUPLEX_POLARITY 0x08
345#define IPG_PC_DUPLEX_STATUS 0x10
346#define IPG_PC_LINK_POLARITY 0x20
347#define IPG_PC_LINK_SPEED 0xC0
348#define IPG_PC_LINK_SPEED_10MBPS 0x40
349#define IPG_PC_LINK_SPEED_100MBPS 0x80
350#define IPG_PC_LINK_SPEED_1000MBPS 0xC0
351
352/* DMACtrl */
353#define IPG_DC_RSVD_MASK 0xC07D9818
354#define IPG_DC_RX_DMA_COMPLETE 0x00000008
355#define IPG_DC_RX_DMA_POLL_NOW 0x00000010
356#define IPG_DC_TX_DMA_COMPLETE 0x00000800
357#define IPG_DC_TX_DMA_POLL_NOW 0x00001000
358#define IPG_DC_TX_DMA_IN_PROG 0x00008000
359#define IPG_DC_RX_EARLY_DISABLE 0x00010000
360#define IPG_DC_MWI_DISABLE 0x00040000
361#define IPG_DC_TX_WRITE_BACK_DISABLE 0x00080000
362#define IPG_DC_TX_BURST_LIMIT 0x00700000
363#define IPG_DC_TARGET_ABORT 0x40000000
364#define IPG_DC_MASTER_ABORT 0x80000000
365
366/* ASICCtrl */
367#define IPG_AC_RSVD_MASK 0x07FFEFF2
368#define IPG_AC_EXP_ROM_SIZE 0x00000002
369#define IPG_AC_PHY_SPEED10 0x00000010
370#define IPG_AC_PHY_SPEED100 0x00000020
371#define IPG_AC_PHY_SPEED1000 0x00000040
372#define IPG_AC_PHY_MEDIA 0x00000080
373#define IPG_AC_FORCED_CFG 0x00000700
374#define IPG_AC_D3RESETDISABLE 0x00000800
375#define IPG_AC_SPEED_UP_MODE 0x00002000
376#define IPG_AC_LED_MODE 0x00004000
377#define IPG_AC_RST_OUT_POLARITY 0x00008000
378#define IPG_AC_GLOBAL_RESET 0x00010000
379#define IPG_AC_RX_RESET 0x00020000
380#define IPG_AC_TX_RESET 0x00040000
381#define IPG_AC_DMA 0x00080000
382#define IPG_AC_FIFO 0x00100000
383#define IPG_AC_NETWORK 0x00200000
384#define IPG_AC_HOST 0x00400000
385#define IPG_AC_AUTO_INIT 0x00800000
386#define IPG_AC_RST_OUT 0x01000000
387#define IPG_AC_INT_REQUEST 0x02000000
388#define IPG_AC_RESET_BUSY 0x04000000
389#define IPG_AC_LED_SPEED 0x08000000 //JES20040127EEPROM
390#define IPG_AC_LED_MODE_BIT_1 0x20000000 //JES20040127EEPROM
391
392/* EepromCtrl */
393#define IPG_EC_RSVD_MASK 0x83FF
394#define IPG_EC_EEPROM_ADDR 0x00FF
395#define IPG_EC_EEPROM_OPCODE 0x0300
396#define IPG_EC_EEPROM_SUBCOMMAD 0x0000
397#define IPG_EC_EEPROM_WRITEOPCODE 0x0100
398#define IPG_EC_EEPROM_READOPCODE 0x0200
399#define IPG_EC_EEPROM_ERASEOPCODE 0x0300
400#define IPG_EC_EEPROM_BUSY 0x8000
401
402/* FIFOCtrl */
403#define IPG_FC_RSVD_MASK 0xC001
404#define IPG_FC_RAM_TEST_MODE 0x0001
405#define IPG_FC_TRANSMITTING 0x4000
406#define IPG_FC_RECEIVING 0x8000
407
408/* TxStatus */
409#define IPG_TS_RSVD_MASK 0xFFFF00DD
410#define IPG_TS_TX_ERROR 0x00000001
411#define IPG_TS_LATE_COLLISION 0x00000004
412#define IPG_TS_TX_MAX_COLL 0x00000008
413#define IPG_TS_TX_UNDERRUN 0x00000010
414#define IPG_TS_TX_IND_REQD 0x00000040
415#define IPG_TS_TX_COMPLETE 0x00000080
416#define IPG_TS_TX_FRAMEID 0xFFFF0000
417
418/* WakeEvent */
419#define IPG_WE_WAKE_PKT_ENABLE 0x01
420#define IPG_WE_MAGIC_PKT_ENABLE 0x02
421#define IPG_WE_LINK_EVT_ENABLE 0x04
422#define IPG_WE_WAKE_POLARITY 0x08
423#define IPG_WE_WAKE_PKT_EVT 0x10
424#define IPG_WE_MAGIC_PKT_EVT 0x20
425#define IPG_WE_LINK_EVT 0x40
426#define IPG_WE_WOL_ENABLE 0x80
427
428/* IntEnable */
429#define IPG_IE_RSVD_MASK 0x1FFE
430#define IPG_IE_HOST_ERROR 0x0002
431#define IPG_IE_TX_COMPLETE 0x0004
432#define IPG_IE_MAC_CTRL_FRAME 0x0008
433#define IPG_IE_RX_COMPLETE 0x0010
434#define IPG_IE_RX_EARLY 0x0020
435#define IPG_IE_INT_REQUESTED 0x0040
436#define IPG_IE_UPDATE_STATS 0x0080
437#define IPG_IE_LINK_EVENT 0x0100
438#define IPG_IE_TX_DMA_COMPLETE 0x0200
439#define IPG_IE_RX_DMA_COMPLETE 0x0400
440#define IPG_IE_RFD_LIST_END 0x0800
441#define IPG_IE_RX_DMA_PRIORITY 0x1000
442
443/* IntStatus */
444#define IPG_IS_RSVD_MASK 0x1FFF
445#define IPG_IS_INTERRUPT_STATUS 0x0001
446#define IPG_IS_HOST_ERROR 0x0002
447#define IPG_IS_TX_COMPLETE 0x0004
448#define IPG_IS_MAC_CTRL_FRAME 0x0008
449#define IPG_IS_RX_COMPLETE 0x0010
450#define IPG_IS_RX_EARLY 0x0020
451#define IPG_IS_INT_REQUESTED 0x0040
452#define IPG_IS_UPDATE_STATS 0x0080
453#define IPG_IS_LINK_EVENT 0x0100
454#define IPG_IS_TX_DMA_COMPLETE 0x0200
455#define IPG_IS_RX_DMA_COMPLETE 0x0400
456#define IPG_IS_RFD_LIST_END 0x0800
457#define IPG_IS_RX_DMA_PRIORITY 0x1000
458
459/* MACCtrl */
460#define IPG_MC_RSVD_MASK 0x7FE33FA3
461#define IPG_MC_IFS_SELECT 0x00000003
462#define IPG_MC_IFS_4352BIT 0x00000003
463#define IPG_MC_IFS_1792BIT 0x00000002
464#define IPG_MC_IFS_1024BIT 0x00000001
465#define IPG_MC_IFS_96BIT 0x00000000
466#define IPG_MC_DUPLEX_SELECT 0x00000020
467#define IPG_MC_DUPLEX_SELECT_FD 0x00000020
468#define IPG_MC_DUPLEX_SELECT_HD 0x00000000
469#define IPG_MC_TX_FLOW_CONTROL_ENABLE 0x00000080
470#define IPG_MC_RX_FLOW_CONTROL_ENABLE 0x00000100
471#define IPG_MC_RCV_FCS 0x00000200
472#define IPG_MC_FIFO_LOOPBACK 0x00000400
473#define IPG_MC_MAC_LOOPBACK 0x00000800
474#define IPG_MC_AUTO_VLAN_TAGGING 0x00001000
475#define IPG_MC_AUTO_VLAN_UNTAGGING 0x00002000
476#define IPG_MC_COLLISION_DETECT 0x00010000
477#define IPG_MC_CARRIER_SENSE 0x00020000
478#define IPG_MC_STATISTICS_ENABLE 0x00200000
479#define IPG_MC_STATISTICS_DISABLE 0x00400000
480#define IPG_MC_STATISTICS_ENABLED 0x00800000
481#define IPG_MC_TX_ENABLE 0x01000000
482#define IPG_MC_TX_DISABLE 0x02000000
483#define IPG_MC_TX_ENABLED 0x04000000
484#define IPG_MC_RX_ENABLE 0x08000000
485#define IPG_MC_RX_DISABLE 0x10000000
486#define IPG_MC_RX_ENABLED 0x20000000
487#define IPG_MC_PAUSED 0x40000000
488
489/*
490 * Tune
491 */
492
493/* Miscellaneous Constants. */
494#define TRUE 1
495#define FALSE 0
496
497/* Assign IPG_APPEND_FCS_ON_TX > 0 for auto FCS append on TX. */
498#define IPG_APPEND_FCS_ON_TX TRUE
499
500/* Assign IPG_APPEND_FCS_ON_TX > 0 for auto FCS strip on RX. */
501#define IPG_STRIP_FCS_ON_RX TRUE
502
503/* Assign IPG_DROP_ON_RX_ETH_ERRORS > 0 to drop RX frames with
504 * Ethernet errors.
505 */
506#define IPG_DROP_ON_RX_ETH_ERRORS TRUE
507
508/* Assign IPG_INSERT_MANUAL_VLAN_TAG > 0 to insert VLAN tags manually
509 * (via TFC).
510 */
511#define IPG_INSERT_MANUAL_VLAN_TAG FALSE
512
513/* Assign IPG_ADD_IPCHECKSUM_ON_TX > 0 for auto IP checksum on TX. */
514#define IPG_ADD_IPCHECKSUM_ON_TX FALSE
515
516/* Assign IPG_ADD_TCPCHECKSUM_ON_TX > 0 for auto TCP checksum on TX.
517 * DO NOT USE FOR SILICON REVISIONS B3 AND EARLIER.
518 */
519#define IPG_ADD_TCPCHECKSUM_ON_TX FALSE
520
521/* Assign IPG_ADD_UDPCHECKSUM_ON_TX > 0 for auto UDP checksum on TX.
522 * DO NOT USE FOR SILICON REVISIONS B3 AND EARLIER.
523 */
524#define IPG_ADD_UDPCHECKSUM_ON_TX FALSE
525
526/* If inserting VLAN tags manually, assign the IPG_MANUAL_VLAN_xx
527 * constants as desired.
528 */
529#define IPG_MANUAL_VLAN_VID 0xABC
530#define IPG_MANUAL_VLAN_CFI 0x1
531#define IPG_MANUAL_VLAN_USERPRIORITY 0x5
532
533#define IPG_IO_REG_RANGE 0xFF
534#define IPG_MEM_REG_RANGE 0x154
535#define IPG_DRIVER_NAME "Sundance Technology IPG Triple-Speed Ethernet"
536#define IPG_NIC_PHY_ADDRESS 0x01
537#define IPG_DMALIST_ALIGN_PAD 0x07
538#define IPG_MULTICAST_HASHTABLE_SIZE 0x40
539
540/* Number of miliseconds to wait after issuing a software reset.
541 * 0x05 <= IPG_AC_RESETWAIT to account for proper 10Mbps operation.
542 */
543#define IPG_AC_RESETWAIT 0x05
544
545/* Number of IPG_AC_RESETWAIT timeperiods before declaring timeout. */
546#define IPG_AC_RESET_TIMEOUT 0x0A
547
548/* Minimum number of nanoseconds used to toggle MDC clock during
549 * MII/GMII register access.
550 */
551#define IPG_PC_PHYCTRLWAIT_NS 200
552
553#define IPG_TFDLIST_LENGTH 0x100
554
555/* Number of frames between TxDMAComplete interrupt.
556 * 0 < IPG_FRAMESBETWEENTXDMACOMPLETES <= IPG_TFDLIST_LENGTH
557 */
558#define IPG_FRAMESBETWEENTXDMACOMPLETES 0x1
559
560#ifdef JUMBO_FRAME
561
562# ifdef JUMBO_FRAME_SIZE_2K
563# define JUMBO_FRAME_SIZE 2048
564# define __IPG_RXFRAG_SIZE 2048
565# else
566# ifdef JUMBO_FRAME_SIZE_3K
567# define JUMBO_FRAME_SIZE 3072
568# define __IPG_RXFRAG_SIZE 3072
569# else
570# ifdef JUMBO_FRAME_SIZE_4K
571# define JUMBO_FRAME_SIZE 4096
572# define __IPG_RXFRAG_SIZE 4088
573# else
574# ifdef JUMBO_FRAME_SIZE_5K
575# define JUMBO_FRAME_SIZE 5120
576# define __IPG_RXFRAG_SIZE 4088
577# else
578# ifdef JUMBO_FRAME_SIZE_6K
579# define JUMBO_FRAME_SIZE 6144
580# define __IPG_RXFRAG_SIZE 4088
581# else
582# ifdef JUMBO_FRAME_SIZE_7K
583# define JUMBO_FRAME_SIZE 7168
584# define __IPG_RXFRAG_SIZE 4088
585# else
586# ifdef JUMBO_FRAME_SIZE_8K
587# define JUMBO_FRAME_SIZE 8192
588# define __IPG_RXFRAG_SIZE 4088
589# else
590# ifdef JUMBO_FRAME_SIZE_9K
591# define JUMBO_FRAME_SIZE 9216
592# define __IPG_RXFRAG_SIZE 4088
593# else
594# ifdef JUMBO_FRAME_SIZE_10K
595# define JUMBO_FRAME_SIZE 10240
596# define __IPG_RXFRAG_SIZE 4088
597# else
598# define JUMBO_FRAME_SIZE 4096
599# endif
600# endif
601# endif
602# endif
603# endif
604# endif
605# endif
606# endif
607# endif
608#endif
609
610/* Size of allocated received buffers. Nominally 0x0600.
611 * Define larger if expecting jumbo frames.
612 */
613#ifdef JUMBO_FRAME
614//IPG_TXFRAG_SIZE must <= 0x2b00, or TX will crash
615#define IPG_TXFRAG_SIZE JUMBO_FRAME_SIZE
616#endif
617
618/* Size of allocated received buffers. Nominally 0x0600.
619 * Define larger if expecting jumbo frames.
620 */
621#ifdef JUMBO_FRAME
622//4088=4096-8
623#define IPG_RXFRAG_SIZE __IPG_RXFRAG_SIZE
624#define IPG_RXSUPPORT_SIZE IPG_MAX_RXFRAME_SIZE
625#else
626#define IPG_RXFRAG_SIZE 0x0600
627#define IPG_RXSUPPORT_SIZE IPG_RXFRAG_SIZE
628#endif
629
630/* IPG_MAX_RXFRAME_SIZE <= IPG_RXFRAG_SIZE */
631#ifdef JUMBO_FRAME
632#define IPG_MAX_RXFRAME_SIZE JUMBO_FRAME_SIZE
633#else
634#define IPG_MAX_RXFRAME_SIZE 0x0600
635#endif
636
637#define IPG_RFDLIST_LENGTH 0x100
638
639/* Maximum number of RFDs to process per interrupt.
640 * 1 < IPG_MAXRFDPROCESS_COUNT < IPG_RFDLIST_LENGTH
641 */
642#define IPG_MAXRFDPROCESS_COUNT 0x80
643
644/* Minimum margin between last freed RFD, and current RFD.
645 * 1 < IPG_MINUSEDRFDSTOFREE < IPG_RFDLIST_LENGTH
646 */
647#define IPG_MINUSEDRFDSTOFREE 0x80
648
649/* specify the jumbo frame maximum size
650 * per unit is 0x600 (the RxBuffer size that one RFD can carry)
651 */
652#define MAX_JUMBOSIZE 0x8 // max is 12K
653
654/* Key register values loaded at driver start up. */
655
656/* TXDMAPollPeriod is specified in 320ns increments.
657 *
658 * Value Time
659 * ---------------------
660 * 0x00-0x01 320ns
661 * 0x03 ~1us
662 * 0x1F ~10us
663 * 0xFF ~82us
664 */
665#define IPG_TXDMAPOLLPERIOD_VALUE 0x26
666
667/* TxDMAUrgentThresh specifies the minimum amount of
668 * data in the transmit FIFO before asserting an
669 * urgent transmit DMA request.
670 *
671 * Value Min TxFIFO occupied space before urgent TX request
672 * ---------------------------------------------------------------
673 * 0x00-0x04 128 bytes (1024 bits)
674 * 0x27 1248 bytes (~10000 bits)
675 * 0x30 1536 bytes (12288 bits)
676 * 0xFF 8192 bytes (65535 bits)
677 */
678#define IPG_TXDMAURGENTTHRESH_VALUE 0x04
679
680/* TxDMABurstThresh specifies the minimum amount of
681 * free space in the transmit FIFO before asserting an
682 * transmit DMA request.
683 *
684 * Value Min TxFIFO free space before TX request
685 * ----------------------------------------------------
686 * 0x00-0x08 256 bytes
687 * 0x30 1536 bytes
688 * 0xFF 8192 bytes
689 */
690#define IPG_TXDMABURSTTHRESH_VALUE 0x30
691
692/* RXDMAPollPeriod is specified in 320ns increments.
693 *
694 * Value Time
695 * ---------------------
696 * 0x00-0x01 320ns
697 * 0x03 ~1us
698 * 0x1F ~10us
699 * 0xFF ~82us
700 */
701#define IPG_RXDMAPOLLPERIOD_VALUE 0x01
702
703/* RxDMAUrgentThresh specifies the minimum amount of
704 * free space within the receive FIFO before asserting
705 * a urgent receive DMA request.
706 *
707 * Value Min RxFIFO free space before urgent RX request
708 * ---------------------------------------------------------------
709 * 0x00-0x04 128 bytes (1024 bits)
710 * 0x27 1248 bytes (~10000 bits)
711 * 0x30 1536 bytes (12288 bits)
712 * 0xFF 8192 bytes (65535 bits)
713 */
714#define IPG_RXDMAURGENTTHRESH_VALUE 0x30
715
716/* RxDMABurstThresh specifies the minimum amount of
717 * occupied space within the receive FIFO before asserting
718 * a receive DMA request.
719 *
720 * Value Min TxFIFO free space before TX request
721 * ----------------------------------------------------
722 * 0x00-0x08 256 bytes
723 * 0x30 1536 bytes
724 * 0xFF 8192 bytes
725 */
726#define IPG_RXDMABURSTTHRESH_VALUE 0x30
727
728/* FlowOnThresh specifies the maximum amount of occupied
729 * space in the receive FIFO before a PAUSE frame with
730 * maximum pause time transmitted.
731 *
732 * Value Max RxFIFO occupied space before PAUSE
733 * ---------------------------------------------------
734 * 0x0000 0 bytes
735 * 0x0740 29,696 bytes
736 * 0x07FF 32,752 bytes
737 */
738#define IPG_FLOWONTHRESH_VALUE 0x0740
739
740/* FlowOffThresh specifies the minimum amount of occupied
741 * space in the receive FIFO before a PAUSE frame with
742 * zero pause time is transmitted.
743 *
744 * Value Max RxFIFO occupied space before PAUSE
745 * ---------------------------------------------------
746 * 0x0000 0 bytes
747 * 0x00BF 3056 bytes
748 * 0x07FF 32,752 bytes
749 */
750#define IPG_FLOWOFFTHRESH_VALUE 0x00BF
751
752/*
753 * Miscellaneous macros.
754 */
755
756/* Marco for printing debug statements.
757# define IPG_DDEBUG_MSG(args...) printk(KERN_DEBUG "IPG: " ## args) */
758#ifdef IPG_DEBUG
759# define IPG_DEBUG_MSG(args...)
760# define IPG_DDEBUG_MSG(args...) printk(KERN_DEBUG "IPG: " args)
761# define IPG_DUMPRFDLIST(args) ipg_dump_rfdlist(args)
762# define IPG_DUMPTFDLIST(args) ipg_dump_tfdlist(args)
763#else
764# define IPG_DEBUG_MSG(args...)
765# define IPG_DDEBUG_MSG(args...)
766# define IPG_DUMPRFDLIST(args)
767# define IPG_DUMPTFDLIST(args)
768#endif
769
770/*
771 * End miscellaneous macros.
772 */
773
774/* Transmit Frame Descriptor. The IPG supports 15 fragments,
775 * however Linux requires only a single fragment. Note, each
776 * TFD field is 64 bits wide.
777 */
778struct ipg_tx {
779 u64 next_desc;
780 u64 tfc;
781 u64 frag_info;
782};
783
784/* Receive Frame Descriptor. Note, each RFD field is 64 bits wide.
785 */
786struct ipg_rx {
787 u64 next_desc;
788 u64 rfs;
789 u64 frag_info;
790};
791
792struct SJumbo {
793 int FoundStart;
794 int CurrentSize;
795 struct sk_buff *skb;
796};
797/* Structure of IPG NIC specific data. */
798struct ipg_nic_private {
799 void __iomem *ioaddr;
800 struct ipg_tx *txd;
801 struct ipg_rx *rxd;
802 dma_addr_t txd_map;
803 dma_addr_t rxd_map;
804 struct sk_buff *TxBuff[IPG_TFDLIST_LENGTH];
805 struct sk_buff *RxBuff[IPG_RFDLIST_LENGTH];
806 unsigned int tx_current;
807 unsigned int tx_dirty;
808 unsigned int rx_current;
809 unsigned int rx_dirty;
810// Add by Grace 2005/05/19
811#ifdef JUMBO_FRAME
812 struct SJumbo Jumbo;
813#endif
814 unsigned int rx_buf_sz;
815 struct pci_dev *pdev;
816 struct net_device *dev;
817 struct net_device_stats stats;
818 spinlock_t lock;
819 int tenmbpsmode;
820
821 /*Jesse20040128EEPROM_VALUE */
822 u16 LED_Mode;
823 u16 station_addr[3]; /* Station Address in EEPROM Reg 0x10..0x12 */
824
825 struct mutex mii_mutex;
826 struct mii_if_info mii_if;
827 int ResetCurrentTFD;
828#ifdef IPG_DEBUG
829 int RFDlistendCount;
830 int RFDListCheckedCount;
831 int EmptyRFDListCount;
832#endif
833 struct delayed_work task;
834};
835
836//variable record -- index by leading revision/length
837//Revision/Length(=N*4), Address1, Data1, Address2, Data2,...,AddressN,DataN
838unsigned short DefaultPhyParam[] = {
839 // 11/12/03 IP1000A v1-3 rev=0x40
840 /*--------------------------------------------------------------------------
841 (0x4000|(15*4)), 31, 0x0001, 27, 0x01e0, 31, 0x0002, 22, 0x85bd, 24, 0xfff2,
842 27, 0x0c10, 28, 0x0c10, 29, 0x2c10, 31, 0x0003, 23, 0x92f6,
843 31, 0x0000, 23, 0x003d, 30, 0x00de, 20, 0x20e7, 9, 0x0700,
844 --------------------------------------------------------------------------*/
845 // 12/17/03 IP1000A v1-4 rev=0x40
846 (0x4000 | (07 * 4)), 31, 0x0001, 27, 0x01e0, 31, 0x0002, 27, 0xeb8e, 31,
847 0x0000,
848 30, 0x005e, 9, 0x0700,
849 // 01/09/04 IP1000A v1-5 rev=0x41
850 (0x4100 | (07 * 4)), 31, 0x0001, 27, 0x01e0, 31, 0x0002, 27, 0xeb8e, 31,
851 0x0000,
852 30, 0x005e, 9, 0x0700,
853 0x0000
854};
855
856#endif /* __LINUX_IPG_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-30 07:35:25 -0400