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1202d6ff FR |
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 | */ | |
c9ea53d0 JP |
23 | |
24 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
25 | ||
1202d6ff FR |
26 | #include <linux/crc32.h> |
27 | #include <linux/ethtool.h> | |
a6b7a407 | 28 | #include <linux/interrupt.h> |
5a0e3ad6 | 29 | #include <linux/gfp.h> |
1202d6ff FR |
30 | #include <linux/mii.h> |
31 | #include <linux/mutex.h> | |
32 | ||
1dad939d | 33 | #include <asm/div64.h> |
34 | ||
1202d6ff FR |
35 | #define IPG_RX_RING_BYTES (sizeof(struct ipg_rx) * IPG_RFDLIST_LENGTH) |
36 | #define IPG_TX_RING_BYTES (sizeof(struct ipg_tx) * IPG_TFDLIST_LENGTH) | |
37 | #define IPG_RESET_MASK \ | |
38 | (IPG_AC_GLOBAL_RESET | IPG_AC_RX_RESET | IPG_AC_TX_RESET | \ | |
39 | IPG_AC_DMA | IPG_AC_FIFO | IPG_AC_NETWORK | IPG_AC_HOST | \ | |
40 | IPG_AC_AUTO_INIT) | |
41 | ||
8da5bb7a PE |
42 | #define ipg_w32(val32, reg) iowrite32((val32), ioaddr + (reg)) |
43 | #define ipg_w16(val16, reg) iowrite16((val16), ioaddr + (reg)) | |
44 | #define ipg_w8(val8, reg) iowrite8((val8), ioaddr + (reg)) | |
1202d6ff FR |
45 | |
46 | #define ipg_r32(reg) ioread32(ioaddr + (reg)) | |
47 | #define ipg_r16(reg) ioread16(ioaddr + (reg)) | |
48 | #define ipg_r8(reg) ioread8(ioaddr + (reg)) | |
49 | ||
1202d6ff FR |
50 | enum { |
51 | netdev_io_size = 128 | |
52 | }; | |
53 | ||
54 | #include "ipg.h" | |
55 | #define DRV_NAME "ipg" | |
56 | ||
57 | MODULE_AUTHOR("IC Plus Corp. 2003"); | |
1662e4b7 | 58 | MODULE_DESCRIPTION("IC Plus IP1000 Gigabit Ethernet Adapter Linux Driver"); |
1202d6ff FR |
59 | MODULE_LICENSE("GPL"); |
60 | ||
532f4aee PE |
61 | /* |
62 | * Defaults | |
63 | */ | |
64 | #define IPG_MAX_RXFRAME_SIZE 0x0600 | |
65 | #define IPG_RXFRAG_SIZE 0x0600 | |
66 | #define IPG_RXSUPPORT_SIZE 0x0600 | |
67 | #define IPG_IS_JUMBO false | |
68 | ||
8da5bb7a PE |
69 | /* |
70 | * Variable record -- index by leading revision/length | |
71 | * Revision/Length(=N*4), Address1, Data1, Address2, Data2,...,AddressN,DataN | |
72 | */ | |
fc502ba0 | 73 | static const unsigned short DefaultPhyParam[] = { |
8da5bb7a | 74 | /* 11/12/03 IP1000A v1-3 rev=0x40 */ |
96fd74b2 AB |
75 | /*-------------------------------------------------------------------------- |
76 | (0x4000|(15*4)), 31, 0x0001, 27, 0x01e0, 31, 0x0002, 22, 0x85bd, 24, 0xfff2, | |
77 | 27, 0x0c10, 28, 0x0c10, 29, 0x2c10, 31, 0x0003, 23, 0x92f6, | |
78 | 31, 0x0000, 23, 0x003d, 30, 0x00de, 20, 0x20e7, 9, 0x0700, | |
79 | --------------------------------------------------------------------------*/ | |
8da5bb7a | 80 | /* 12/17/03 IP1000A v1-4 rev=0x40 */ |
96fd74b2 AB |
81 | (0x4000 | (07 * 4)), 31, 0x0001, 27, 0x01e0, 31, 0x0002, 27, 0xeb8e, 31, |
82 | 0x0000, | |
83 | 30, 0x005e, 9, 0x0700, | |
8da5bb7a | 84 | /* 01/09/04 IP1000A v1-5 rev=0x41 */ |
96fd74b2 AB |
85 | (0x4100 | (07 * 4)), 31, 0x0001, 27, 0x01e0, 31, 0x0002, 27, 0xeb8e, 31, |
86 | 0x0000, | |
87 | 30, 0x005e, 9, 0x0700, | |
88 | 0x0000 | |
89 | }; | |
90 | ||
fc502ba0 | 91 | static const char * const ipg_brand_name[] = { |
1202d6ff FR |
92 | "IC PLUS IP1000 1000/100/10 based NIC", |
93 | "Sundance Technology ST2021 based NIC", | |
94 | "Tamarack Microelectronics TC9020/9021 based NIC", | |
1202d6ff FR |
95 | "D-Link NIC IP1000A" |
96 | }; | |
97 | ||
a3aa1884 | 98 | static DEFINE_PCI_DEVICE_TABLE(ipg_pci_tbl) = { |
1202d6ff FR |
99 | { PCI_VDEVICE(SUNDANCE, 0x1023), 0 }, |
100 | { PCI_VDEVICE(SUNDANCE, 0x2021), 1 }, | |
1aa46ec9 KK |
101 | { PCI_VDEVICE(DLINK, 0x9021), 2 }, |
102 | { PCI_VDEVICE(DLINK, 0x4020), 3 }, | |
1202d6ff FR |
103 | { 0, } |
104 | }; | |
105 | ||
106 | MODULE_DEVICE_TABLE(pci, ipg_pci_tbl); | |
107 | ||
108 | static inline void __iomem *ipg_ioaddr(struct net_device *dev) | |
109 | { | |
110 | struct ipg_nic_private *sp = netdev_priv(dev); | |
111 | return sp->ioaddr; | |
112 | } | |
113 | ||
114 | #ifdef IPG_DEBUG | |
115 | static void ipg_dump_rfdlist(struct net_device *dev) | |
116 | { | |
117 | struct ipg_nic_private *sp = netdev_priv(dev); | |
118 | void __iomem *ioaddr = sp->ioaddr; | |
119 | unsigned int i; | |
120 | u32 offset; | |
121 | ||
122 | IPG_DEBUG_MSG("_dump_rfdlist\n"); | |
123 | ||
c9ea53d0 JP |
124 | netdev_info(dev, "rx_current = %02x\n", sp->rx_current); |
125 | netdev_info(dev, "rx_dirty = %02x\n", sp->rx_dirty); | |
126 | netdev_info(dev, "RFDList start address = %016lx\n", | |
127 | (unsigned long)sp->rxd_map); | |
128 | netdev_info(dev, "RFDListPtr register = %08x%08x\n", | |
129 | ipg_r32(IPG_RFDLISTPTR1), ipg_r32(IPG_RFDLISTPTR0)); | |
1202d6ff FR |
130 | |
131 | for (i = 0; i < IPG_RFDLIST_LENGTH; i++) { | |
132 | offset = (u32) &sp->rxd[i].next_desc - (u32) sp->rxd; | |
c9ea53d0 JP |
133 | netdev_info(dev, "%02x %04x RFDNextPtr = %016lx\n", |
134 | i, offset, (unsigned long)sp->rxd[i].next_desc); | |
1202d6ff | 135 | offset = (u32) &sp->rxd[i].rfs - (u32) sp->rxd; |
c9ea53d0 JP |
136 | netdev_info(dev, "%02x %04x RFS = %016lx\n", |
137 | i, offset, (unsigned long)sp->rxd[i].rfs); | |
1202d6ff | 138 | offset = (u32) &sp->rxd[i].frag_info - (u32) sp->rxd; |
c9ea53d0 JP |
139 | netdev_info(dev, "%02x %04x frag_info = %016lx\n", |
140 | i, offset, (unsigned long)sp->rxd[i].frag_info); | |
1202d6ff FR |
141 | } |
142 | } | |
143 | ||
144 | static void ipg_dump_tfdlist(struct net_device *dev) | |
145 | { | |
146 | struct ipg_nic_private *sp = netdev_priv(dev); | |
147 | void __iomem *ioaddr = sp->ioaddr; | |
148 | unsigned int i; | |
149 | u32 offset; | |
150 | ||
151 | IPG_DEBUG_MSG("_dump_tfdlist\n"); | |
152 | ||
c9ea53d0 JP |
153 | netdev_info(dev, "tx_current = %02x\n", sp->tx_current); |
154 | netdev_info(dev, "tx_dirty = %02x\n", sp->tx_dirty); | |
155 | netdev_info(dev, "TFDList start address = %016lx\n", | |
156 | (unsigned long) sp->txd_map); | |
157 | netdev_info(dev, "TFDListPtr register = %08x%08x\n", | |
158 | ipg_r32(IPG_TFDLISTPTR1), ipg_r32(IPG_TFDLISTPTR0)); | |
1202d6ff FR |
159 | |
160 | for (i = 0; i < IPG_TFDLIST_LENGTH; i++) { | |
161 | offset = (u32) &sp->txd[i].next_desc - (u32) sp->txd; | |
c9ea53d0 JP |
162 | netdev_info(dev, "%02x %04x TFDNextPtr = %016lx\n", |
163 | i, offset, (unsigned long)sp->txd[i].next_desc); | |
1202d6ff FR |
164 | |
165 | offset = (u32) &sp->txd[i].tfc - (u32) sp->txd; | |
c9ea53d0 JP |
166 | netdev_info(dev, "%02x %04x TFC = %016lx\n", |
167 | i, offset, (unsigned long) sp->txd[i].tfc); | |
1202d6ff | 168 | offset = (u32) &sp->txd[i].frag_info - (u32) sp->txd; |
c9ea53d0 JP |
169 | netdev_info(dev, "%02x %04x frag_info = %016lx\n", |
170 | i, offset, (unsigned long) sp->txd[i].frag_info); | |
1202d6ff FR |
171 | } |
172 | } | |
173 | #endif | |
174 | ||
175 | static void ipg_write_phy_ctl(void __iomem *ioaddr, u8 data) | |
176 | { | |
177 | ipg_w8(IPG_PC_RSVD_MASK & data, PHY_CTRL); | |
178 | ndelay(IPG_PC_PHYCTRLWAIT_NS); | |
179 | } | |
180 | ||
181 | static void ipg_drive_phy_ctl_low_high(void __iomem *ioaddr, u8 data) | |
182 | { | |
183 | ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_LO | data); | |
184 | ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_HI | data); | |
185 | } | |
186 | ||
187 | static void send_three_state(void __iomem *ioaddr, u8 phyctrlpolarity) | |
188 | { | |
189 | phyctrlpolarity |= (IPG_PC_MGMTDATA & 0) | IPG_PC_MGMTDIR; | |
190 | ||
191 | ipg_drive_phy_ctl_low_high(ioaddr, phyctrlpolarity); | |
192 | } | |
193 | ||
194 | static void send_end(void __iomem *ioaddr, u8 phyctrlpolarity) | |
195 | { | |
196 | ipg_w8((IPG_PC_MGMTCLK_LO | (IPG_PC_MGMTDATA & 0) | IPG_PC_MGMTDIR | | |
197 | phyctrlpolarity) & IPG_PC_RSVD_MASK, PHY_CTRL); | |
198 | } | |
199 | ||
8da5bb7a | 200 | static u16 read_phy_bit(void __iomem *ioaddr, u8 phyctrlpolarity) |
1202d6ff FR |
201 | { |
202 | u16 bit_data; | |
203 | ||
204 | ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_LO | phyctrlpolarity); | |
205 | ||
206 | bit_data = ((ipg_r8(PHY_CTRL) & IPG_PC_MGMTDATA) >> 1) & 1; | |
207 | ||
208 | ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_HI | phyctrlpolarity); | |
209 | ||
210 | return bit_data; | |
211 | } | |
212 | ||
213 | /* | |
214 | * Read a register from the Physical Layer device located | |
215 | * on the IPG NIC, using the IPG PHYCTRL register. | |
216 | */ | |
8da5bb7a | 217 | static int mdio_read(struct net_device *dev, int phy_id, int phy_reg) |
1202d6ff FR |
218 | { |
219 | void __iomem *ioaddr = ipg_ioaddr(dev); | |
220 | /* | |
221 | * The GMII mangement frame structure for a read is as follows: | |
222 | * | |
223 | * |Preamble|st|op|phyad|regad|ta| data |idle| | |
224 | * |< 32 1s>|01|10|AAAAA|RRRRR|z0|DDDDDDDDDDDDDDDD|z | | |
225 | * | |
226 | * <32 1s> = 32 consecutive logic 1 values | |
227 | * A = bit of Physical Layer device address (MSB first) | |
228 | * R = bit of register address (MSB first) | |
229 | * z = High impedance state | |
230 | * D = bit of read data (MSB first) | |
231 | * | |
232 | * Transmission order is 'Preamble' field first, bits transmitted | |
233 | * left to right (first to last). | |
234 | */ | |
235 | struct { | |
236 | u32 field; | |
237 | unsigned int len; | |
238 | } p[] = { | |
239 | { GMII_PREAMBLE, 32 }, /* Preamble */ | |
240 | { GMII_ST, 2 }, /* ST */ | |
241 | { GMII_READ, 2 }, /* OP */ | |
242 | { phy_id, 5 }, /* PHYAD */ | |
243 | { phy_reg, 5 }, /* REGAD */ | |
244 | { 0x0000, 2 }, /* TA */ | |
245 | { 0x0000, 16 }, /* DATA */ | |
246 | { 0x0000, 1 } /* IDLE */ | |
247 | }; | |
248 | unsigned int i, j; | |
249 | u8 polarity, data; | |
250 | ||
251 | polarity = ipg_r8(PHY_CTRL); | |
252 | polarity &= (IPG_PC_DUPLEX_POLARITY | IPG_PC_LINK_POLARITY); | |
253 | ||
254 | /* Create the Preamble, ST, OP, PHYAD, and REGAD field. */ | |
255 | for (j = 0; j < 5; j++) { | |
256 | for (i = 0; i < p[j].len; i++) { | |
257 | /* For each variable length field, the MSB must be | |
258 | * transmitted first. Rotate through the field bits, | |
259 | * starting with the MSB, and move each bit into the | |
260 | * the 1st (2^1) bit position (this is the bit position | |
261 | * corresponding to the MgmtData bit of the PhyCtrl | |
262 | * register for the IPG). | |
263 | * | |
264 | * Example: ST = 01; | |
265 | * | |
266 | * First write a '0' to bit 1 of the PhyCtrl | |
267 | * register, then write a '1' to bit 1 of the | |
268 | * PhyCtrl register. | |
269 | * | |
270 | * To do this, right shift the MSB of ST by the value: | |
271 | * [field length - 1 - #ST bits already written] | |
272 | * then left shift this result by 1. | |
273 | */ | |
274 | data = (p[j].field >> (p[j].len - 1 - i)) << 1; | |
275 | data &= IPG_PC_MGMTDATA; | |
276 | data |= polarity | IPG_PC_MGMTDIR; | |
277 | ||
278 | ipg_drive_phy_ctl_low_high(ioaddr, data); | |
279 | } | |
280 | } | |
281 | ||
282 | send_three_state(ioaddr, polarity); | |
283 | ||
284 | read_phy_bit(ioaddr, polarity); | |
285 | ||
286 | /* | |
287 | * For a read cycle, the bits for the next two fields (TA and | |
288 | * DATA) are driven by the PHY (the IPG reads these bits). | |
289 | */ | |
290 | for (i = 0; i < p[6].len; i++) { | |
291 | p[6].field |= | |
292 | (read_phy_bit(ioaddr, polarity) << (p[6].len - 1 - i)); | |
293 | } | |
294 | ||
295 | send_three_state(ioaddr, polarity); | |
296 | send_three_state(ioaddr, polarity); | |
297 | send_three_state(ioaddr, polarity); | |
298 | send_end(ioaddr, polarity); | |
299 | ||
300 | /* Return the value of the DATA field. */ | |
301 | return p[6].field; | |
302 | } | |
303 | ||
304 | /* | |
305 | * Write to a register from the Physical Layer device located | |
306 | * on the IPG NIC, using the IPG PHYCTRL register. | |
307 | */ | |
308 | static void mdio_write(struct net_device *dev, int phy_id, int phy_reg, int val) | |
309 | { | |
310 | void __iomem *ioaddr = ipg_ioaddr(dev); | |
311 | /* | |
312 | * The GMII mangement frame structure for a read is as follows: | |
313 | * | |
314 | * |Preamble|st|op|phyad|regad|ta| data |idle| | |
315 | * |< 32 1s>|01|10|AAAAA|RRRRR|z0|DDDDDDDDDDDDDDDD|z | | |
316 | * | |
317 | * <32 1s> = 32 consecutive logic 1 values | |
318 | * A = bit of Physical Layer device address (MSB first) | |
319 | * R = bit of register address (MSB first) | |
320 | * z = High impedance state | |
321 | * D = bit of write data (MSB first) | |
322 | * | |
323 | * Transmission order is 'Preamble' field first, bits transmitted | |
324 | * left to right (first to last). | |
325 | */ | |
326 | struct { | |
327 | u32 field; | |
328 | unsigned int len; | |
329 | } p[] = { | |
330 | { GMII_PREAMBLE, 32 }, /* Preamble */ | |
331 | { GMII_ST, 2 }, /* ST */ | |
332 | { GMII_WRITE, 2 }, /* OP */ | |
333 | { phy_id, 5 }, /* PHYAD */ | |
334 | { phy_reg, 5 }, /* REGAD */ | |
335 | { 0x0002, 2 }, /* TA */ | |
336 | { val & 0xffff, 16 }, /* DATA */ | |
337 | { 0x0000, 1 } /* IDLE */ | |
338 | }; | |
339 | unsigned int i, j; | |
340 | u8 polarity, data; | |
341 | ||
342 | polarity = ipg_r8(PHY_CTRL); | |
343 | polarity &= (IPG_PC_DUPLEX_POLARITY | IPG_PC_LINK_POLARITY); | |
344 | ||
345 | /* Create the Preamble, ST, OP, PHYAD, and REGAD field. */ | |
346 | for (j = 0; j < 7; j++) { | |
347 | for (i = 0; i < p[j].len; i++) { | |
348 | /* For each variable length field, the MSB must be | |
349 | * transmitted first. Rotate through the field bits, | |
350 | * starting with the MSB, and move each bit into the | |
351 | * the 1st (2^1) bit position (this is the bit position | |
352 | * corresponding to the MgmtData bit of the PhyCtrl | |
353 | * register for the IPG). | |
354 | * | |
355 | * Example: ST = 01; | |
356 | * | |
357 | * First write a '0' to bit 1 of the PhyCtrl | |
358 | * register, then write a '1' to bit 1 of the | |
359 | * PhyCtrl register. | |
360 | * | |
361 | * To do this, right shift the MSB of ST by the value: | |
362 | * [field length - 1 - #ST bits already written] | |
363 | * then left shift this result by 1. | |
364 | */ | |
365 | data = (p[j].field >> (p[j].len - 1 - i)) << 1; | |
366 | data &= IPG_PC_MGMTDATA; | |
367 | data |= polarity | IPG_PC_MGMTDIR; | |
368 | ||
369 | ipg_drive_phy_ctl_low_high(ioaddr, data); | |
370 | } | |
371 | } | |
372 | ||
373 | /* The last cycle is a tri-state, so read from the PHY. */ | |
374 | for (j = 7; j < 8; j++) { | |
375 | for (i = 0; i < p[j].len; i++) { | |
376 | ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_LO | polarity); | |
377 | ||
378 | p[j].field |= ((ipg_r8(PHY_CTRL) & | |
379 | IPG_PC_MGMTDATA) >> 1) << (p[j].len - 1 - i); | |
380 | ||
381 | ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_HI | polarity); | |
382 | } | |
383 | } | |
384 | } | |
385 | ||
1202d6ff FR |
386 | static void ipg_set_led_mode(struct net_device *dev) |
387 | { | |
388 | struct ipg_nic_private *sp = netdev_priv(dev); | |
389 | void __iomem *ioaddr = sp->ioaddr; | |
390 | u32 mode; | |
391 | ||
392 | mode = ipg_r32(ASIC_CTRL); | |
393 | mode &= ~(IPG_AC_LED_MODE_BIT_1 | IPG_AC_LED_MODE | IPG_AC_LED_SPEED); | |
394 | ||
9893ba16 | 395 | if ((sp->led_mode & 0x03) > 1) |
1202d6ff FR |
396 | mode |= IPG_AC_LED_MODE_BIT_1; /* Write Asic Control Bit 29 */ |
397 | ||
9893ba16 | 398 | if ((sp->led_mode & 0x01) == 1) |
1202d6ff FR |
399 | mode |= IPG_AC_LED_MODE; /* Write Asic Control Bit 14 */ |
400 | ||
9893ba16 | 401 | if ((sp->led_mode & 0x08) == 8) |
1202d6ff FR |
402 | mode |= IPG_AC_LED_SPEED; /* Write Asic Control Bit 27 */ |
403 | ||
404 | ipg_w32(mode, ASIC_CTRL); | |
405 | } | |
406 | ||
1202d6ff FR |
407 | static void ipg_set_phy_set(struct net_device *dev) |
408 | { | |
409 | struct ipg_nic_private *sp = netdev_priv(dev); | |
410 | void __iomem *ioaddr = sp->ioaddr; | |
411 | int physet; | |
412 | ||
413 | physet = ipg_r8(PHY_SET); | |
414 | physet &= ~(IPG_PS_MEM_LENB9B | IPG_PS_MEM_LEN9 | IPG_PS_NON_COMPDET); | |
9893ba16 | 415 | physet |= ((sp->led_mode & 0x70) >> 4); |
1202d6ff FR |
416 | ipg_w8(physet, PHY_SET); |
417 | } | |
418 | ||
419 | static int ipg_reset(struct net_device *dev, u32 resetflags) | |
420 | { | |
421 | /* Assert functional resets via the IPG AsicCtrl | |
422 | * register as specified by the 'resetflags' input | |
423 | * parameter. | |
424 | */ | |
dea4a87c | 425 | void __iomem *ioaddr = ipg_ioaddr(dev); |
1202d6ff FR |
426 | unsigned int timeout_count = 0; |
427 | ||
428 | IPG_DEBUG_MSG("_reset\n"); | |
429 | ||
430 | ipg_w32(ipg_r32(ASIC_CTRL) | resetflags, ASIC_CTRL); | |
431 | ||
432 | /* Delay added to account for problem with 10Mbps reset. */ | |
433 | mdelay(IPG_AC_RESETWAIT); | |
434 | ||
435 | while (IPG_AC_RESET_BUSY & ipg_r32(ASIC_CTRL)) { | |
436 | mdelay(IPG_AC_RESETWAIT); | |
437 | if (++timeout_count > IPG_AC_RESET_TIMEOUT) | |
438 | return -ETIME; | |
439 | } | |
dea4a87c | 440 | /* Set LED Mode in Asic Control */ |
1202d6ff FR |
441 | ipg_set_led_mode(dev); |
442 | ||
dea4a87c | 443 | /* Set PHYSet Register Value */ |
1202d6ff FR |
444 | ipg_set_phy_set(dev); |
445 | return 0; | |
446 | } | |
447 | ||
448 | /* Find the GMII PHY address. */ | |
449 | static int ipg_find_phyaddr(struct net_device *dev) | |
450 | { | |
451 | unsigned int phyaddr, i; | |
452 | ||
453 | for (i = 0; i < 32; i++) { | |
454 | u32 status; | |
455 | ||
456 | /* Search for the correct PHY address among 32 possible. */ | |
457 | phyaddr = (IPG_NIC_PHY_ADDRESS + i) % 32; | |
458 | ||
459 | /* 10/22/03 Grace change verify from GMII_PHY_STATUS to | |
460 | GMII_PHY_ID1 | |
461 | */ | |
462 | ||
463 | status = mdio_read(dev, phyaddr, MII_BMSR); | |
464 | ||
465 | if ((status != 0xFFFF) && (status != 0)) | |
466 | return phyaddr; | |
467 | } | |
468 | ||
469 | return 0x1f; | |
470 | } | |
471 | ||
472 | /* | |
473 | * Configure IPG based on result of IEEE 802.3 PHY | |
474 | * auto-negotiation. | |
475 | */ | |
476 | static int ipg_config_autoneg(struct net_device *dev) | |
477 | { | |
478 | struct ipg_nic_private *sp = netdev_priv(dev); | |
479 | void __iomem *ioaddr = sp->ioaddr; | |
480 | unsigned int txflowcontrol; | |
481 | unsigned int rxflowcontrol; | |
482 | unsigned int fullduplex; | |
1202d6ff FR |
483 | u32 mac_ctrl_val; |
484 | u32 asicctrl; | |
485 | u8 phyctrl; | |
c9ea53d0 JP |
486 | const char *speed; |
487 | const char *duplex; | |
488 | const char *tx_desc; | |
489 | const char *rx_desc; | |
1202d6ff FR |
490 | |
491 | IPG_DEBUG_MSG("_config_autoneg\n"); | |
492 | ||
493 | asicctrl = ipg_r32(ASIC_CTRL); | |
494 | phyctrl = ipg_r8(PHY_CTRL); | |
495 | mac_ctrl_val = ipg_r32(MAC_CTRL); | |
496 | ||
25985edc | 497 | /* Set flags for use in resolving auto-negotiation, assuming |
1202d6ff FR |
498 | * non-1000Mbps, half duplex, no flow control. |
499 | */ | |
500 | fullduplex = 0; | |
501 | txflowcontrol = 0; | |
502 | rxflowcontrol = 0; | |
1202d6ff | 503 | |
25985edc | 504 | /* To accommodate a problem in 10Mbps operation, |
1202d6ff FR |
505 | * set a global flag if PHY running in 10Mbps mode. |
506 | */ | |
507 | sp->tenmbpsmode = 0; | |
508 | ||
1202d6ff FR |
509 | /* Determine actual speed of operation. */ |
510 | switch (phyctrl & IPG_PC_LINK_SPEED) { | |
511 | case IPG_PC_LINK_SPEED_10MBPS: | |
c9ea53d0 | 512 | speed = "10Mbps"; |
1202d6ff FR |
513 | sp->tenmbpsmode = 1; |
514 | break; | |
515 | case IPG_PC_LINK_SPEED_100MBPS: | |
c9ea53d0 | 516 | speed = "100Mbps"; |
1202d6ff FR |
517 | break; |
518 | case IPG_PC_LINK_SPEED_1000MBPS: | |
c9ea53d0 | 519 | speed = "1000Mbps"; |
1202d6ff FR |
520 | break; |
521 | default: | |
c9ea53d0 | 522 | speed = "undefined!"; |
1202d6ff FR |
523 | return 0; |
524 | } | |
525 | ||
c9ea53d0 JP |
526 | netdev_info(dev, "Link speed = %s\n", speed); |
527 | if (sp->tenmbpsmode == 1) | |
528 | netdev_info(dev, "10Mbps operational mode enabled\n"); | |
529 | ||
1202d6ff FR |
530 | if (phyctrl & IPG_PC_DUPLEX_STATUS) { |
531 | fullduplex = 1; | |
532 | txflowcontrol = 1; | |
533 | rxflowcontrol = 1; | |
534 | } | |
535 | ||
536 | /* Configure full duplex, and flow control. */ | |
537 | if (fullduplex == 1) { | |
c9ea53d0 | 538 | |
1202d6ff | 539 | /* Configure IPG for full duplex operation. */ |
c9ea53d0 JP |
540 | |
541 | duplex = "full"; | |
1202d6ff FR |
542 | |
543 | mac_ctrl_val |= IPG_MC_DUPLEX_SELECT_FD; | |
544 | ||
545 | if (txflowcontrol == 1) { | |
c9ea53d0 | 546 | tx_desc = ""; |
1202d6ff FR |
547 | mac_ctrl_val |= IPG_MC_TX_FLOW_CONTROL_ENABLE; |
548 | } else { | |
c9ea53d0 | 549 | tx_desc = "no "; |
1202d6ff FR |
550 | mac_ctrl_val &= ~IPG_MC_TX_FLOW_CONTROL_ENABLE; |
551 | } | |
552 | ||
553 | if (rxflowcontrol == 1) { | |
c9ea53d0 | 554 | rx_desc = ""; |
1202d6ff FR |
555 | mac_ctrl_val |= IPG_MC_RX_FLOW_CONTROL_ENABLE; |
556 | } else { | |
c9ea53d0 | 557 | rx_desc = "no "; |
1202d6ff FR |
558 | mac_ctrl_val &= ~IPG_MC_RX_FLOW_CONTROL_ENABLE; |
559 | } | |
1202d6ff | 560 | } else { |
c9ea53d0 JP |
561 | duplex = "half"; |
562 | tx_desc = "no "; | |
563 | rx_desc = "no "; | |
564 | mac_ctrl_val &= (~IPG_MC_DUPLEX_SELECT_FD & | |
565 | ~IPG_MC_TX_FLOW_CONTROL_ENABLE & | |
566 | ~IPG_MC_RX_FLOW_CONTROL_ENABLE); | |
1202d6ff | 567 | } |
c9ea53d0 JP |
568 | |
569 | netdev_info(dev, "setting %s duplex, %sTX, %sRX flow control\n", | |
570 | duplex, tx_desc, rx_desc); | |
1202d6ff | 571 | ipg_w32(mac_ctrl_val, MAC_CTRL); |
c9ea53d0 | 572 | |
1202d6ff FR |
573 | return 0; |
574 | } | |
575 | ||
576 | /* Determine and configure multicast operation and set | |
577 | * receive mode for IPG. | |
578 | */ | |
579 | static void ipg_nic_set_multicast_list(struct net_device *dev) | |
580 | { | |
581 | void __iomem *ioaddr = ipg_ioaddr(dev); | |
22bedad3 | 582 | struct netdev_hw_addr *ha; |
1202d6ff FR |
583 | unsigned int hashindex; |
584 | u32 hashtable[2]; | |
585 | u8 receivemode; | |
586 | ||
587 | IPG_DEBUG_MSG("_nic_set_multicast_list\n"); | |
588 | ||
589 | receivemode = IPG_RM_RECEIVEUNICAST | IPG_RM_RECEIVEBROADCAST; | |
590 | ||
591 | if (dev->flags & IFF_PROMISC) { | |
592 | /* NIC to be configured in promiscuous mode. */ | |
593 | receivemode = IPG_RM_RECEIVEALLFRAMES; | |
594 | } else if ((dev->flags & IFF_ALLMULTI) || | |
0761248f | 595 | ((dev->flags & IFF_MULTICAST) && |
4cd24eaf | 596 | (netdev_mc_count(dev) > IPG_MULTICAST_HASHTABLE_SIZE))) { |
1202d6ff FR |
597 | /* NIC to be configured to receive all multicast |
598 | * frames. */ | |
599 | receivemode |= IPG_RM_RECEIVEMULTICAST; | |
4cd24eaf | 600 | } else if ((dev->flags & IFF_MULTICAST) && !netdev_mc_empty(dev)) { |
1202d6ff FR |
601 | /* NIC to be configured to receive selected |
602 | * multicast addresses. */ | |
603 | receivemode |= IPG_RM_RECEIVEMULTICASTHASH; | |
604 | } | |
605 | ||
606 | /* Calculate the bits to set for the 64 bit, IPG HASHTABLE. | |
607 | * The IPG applies a cyclic-redundancy-check (the same CRC | |
608 | * used to calculate the frame data FCS) to the destination | |
609 | * address all incoming multicast frames whose destination | |
610 | * address has the multicast bit set. The least significant | |
611 | * 6 bits of the CRC result are used as an addressing index | |
612 | * into the hash table. If the value of the bit addressed by | |
613 | * this index is a 1, the frame is passed to the host system. | |
614 | */ | |
615 | ||
616 | /* Clear hashtable. */ | |
617 | hashtable[0] = 0x00000000; | |
618 | hashtable[1] = 0x00000000; | |
619 | ||
620 | /* Cycle through all multicast addresses to filter. */ | |
22bedad3 | 621 | netdev_for_each_mc_addr(ha, dev) { |
1202d6ff | 622 | /* Calculate CRC result for each multicast address. */ |
22bedad3 | 623 | hashindex = crc32_le(0xffffffff, ha->addr, |
1202d6ff FR |
624 | ETH_ALEN); |
625 | ||
626 | /* Use only the least significant 6 bits. */ | |
627 | hashindex = hashindex & 0x3F; | |
628 | ||
629 | /* Within "hashtable", set bit number "hashindex" | |
630 | * to a logic 1. | |
631 | */ | |
632 | set_bit(hashindex, (void *)hashtable); | |
633 | } | |
634 | ||
635 | /* Write the value of the hashtable, to the 4, 16 bit | |
636 | * HASHTABLE IPG registers. | |
637 | */ | |
638 | ipg_w32(hashtable[0], HASHTABLE_0); | |
639 | ipg_w32(hashtable[1], HASHTABLE_1); | |
640 | ||
641 | ipg_w8(IPG_RM_RSVD_MASK & receivemode, RECEIVE_MODE); | |
642 | ||
643 | IPG_DEBUG_MSG("ReceiveMode = %x\n", ipg_r8(RECEIVE_MODE)); | |
644 | } | |
645 | ||
646 | static int ipg_io_config(struct net_device *dev) | |
647 | { | |
da02b231 | 648 | struct ipg_nic_private *sp = netdev_priv(dev); |
1202d6ff FR |
649 | void __iomem *ioaddr = ipg_ioaddr(dev); |
650 | u32 origmacctrl; | |
651 | u32 restoremacctrl; | |
652 | ||
653 | IPG_DEBUG_MSG("_io_config\n"); | |
654 | ||
655 | origmacctrl = ipg_r32(MAC_CTRL); | |
656 | ||
657 | restoremacctrl = origmacctrl | IPG_MC_STATISTICS_ENABLE; | |
658 | ||
659 | /* Based on compilation option, determine if FCS is to be | |
660 | * stripped on receive frames by IPG. | |
661 | */ | |
662 | if (!IPG_STRIP_FCS_ON_RX) | |
663 | restoremacctrl |= IPG_MC_RCV_FCS; | |
664 | ||
665 | /* Determine if transmitter and/or receiver are | |
666 | * enabled so we may restore MACCTRL correctly. | |
667 | */ | |
668 | if (origmacctrl & IPG_MC_TX_ENABLED) | |
669 | restoremacctrl |= IPG_MC_TX_ENABLE; | |
670 | ||
671 | if (origmacctrl & IPG_MC_RX_ENABLED) | |
672 | restoremacctrl |= IPG_MC_RX_ENABLE; | |
673 | ||
674 | /* Transmitter and receiver must be disabled before setting | |
675 | * IFSSelect. | |
676 | */ | |
677 | ipg_w32((origmacctrl & (IPG_MC_RX_DISABLE | IPG_MC_TX_DISABLE)) & | |
678 | IPG_MC_RSVD_MASK, MAC_CTRL); | |
679 | ||
680 | /* Now that transmitter and receiver are disabled, write | |
681 | * to IFSSelect. | |
682 | */ | |
683 | ipg_w32((origmacctrl & IPG_MC_IFS_96BIT) & IPG_MC_RSVD_MASK, MAC_CTRL); | |
684 | ||
685 | /* Set RECEIVEMODE register. */ | |
686 | ipg_nic_set_multicast_list(dev); | |
687 | ||
da02b231 | 688 | ipg_w16(sp->max_rxframe_size, MAX_FRAME_SIZE); |
1202d6ff FR |
689 | |
690 | ipg_w8(IPG_RXDMAPOLLPERIOD_VALUE, RX_DMA_POLL_PERIOD); | |
691 | ipg_w8(IPG_RXDMAURGENTTHRESH_VALUE, RX_DMA_URGENT_THRESH); | |
692 | ipg_w8(IPG_RXDMABURSTTHRESH_VALUE, RX_DMA_BURST_THRESH); | |
693 | ipg_w8(IPG_TXDMAPOLLPERIOD_VALUE, TX_DMA_POLL_PERIOD); | |
694 | ipg_w8(IPG_TXDMAURGENTTHRESH_VALUE, TX_DMA_URGENT_THRESH); | |
695 | ipg_w8(IPG_TXDMABURSTTHRESH_VALUE, TX_DMA_BURST_THRESH); | |
696 | ipg_w16((IPG_IE_HOST_ERROR | IPG_IE_TX_DMA_COMPLETE | | |
697 | IPG_IE_TX_COMPLETE | IPG_IE_INT_REQUESTED | | |
698 | IPG_IE_UPDATE_STATS | IPG_IE_LINK_EVENT | | |
699 | IPG_IE_RX_DMA_COMPLETE | IPG_IE_RX_DMA_PRIORITY), INT_ENABLE); | |
700 | ipg_w16(IPG_FLOWONTHRESH_VALUE, FLOW_ON_THRESH); | |
701 | ipg_w16(IPG_FLOWOFFTHRESH_VALUE, FLOW_OFF_THRESH); | |
702 | ||
703 | /* IPG multi-frag frame bug workaround. | |
704 | * Per silicon revision B3 eratta. | |
705 | */ | |
706 | ipg_w16(ipg_r16(DEBUG_CTRL) | 0x0200, DEBUG_CTRL); | |
707 | ||
708 | /* IPG TX poll now bug workaround. | |
709 | * Per silicon revision B3 eratta. | |
710 | */ | |
711 | ipg_w16(ipg_r16(DEBUG_CTRL) | 0x0010, DEBUG_CTRL); | |
712 | ||
713 | /* IPG RX poll now bug workaround. | |
714 | * Per silicon revision B3 eratta. | |
715 | */ | |
716 | ipg_w16(ipg_r16(DEBUG_CTRL) | 0x0020, DEBUG_CTRL); | |
717 | ||
718 | /* Now restore MACCTRL to original setting. */ | |
719 | ipg_w32(IPG_MC_RSVD_MASK & restoremacctrl, MAC_CTRL); | |
720 | ||
721 | /* Disable unused RMON statistics. */ | |
722 | ipg_w32(IPG_RZ_ALL, RMON_STATISTICS_MASK); | |
723 | ||
724 | /* Disable unused MIB statistics. */ | |
725 | ipg_w32(IPG_SM_MACCONTROLFRAMESXMTD | IPG_SM_MACCONTROLFRAMESRCVD | | |
726 | IPG_SM_BCSTOCTETXMTOK_BCSTFRAMESXMTDOK | IPG_SM_TXJUMBOFRAMES | | |
727 | IPG_SM_MCSTOCTETXMTOK_MCSTFRAMESXMTDOK | IPG_SM_RXJUMBOFRAMES | | |
728 | IPG_SM_BCSTOCTETRCVDOK_BCSTFRAMESRCVDOK | | |
729 | IPG_SM_UDPCHECKSUMERRORS | IPG_SM_TCPCHECKSUMERRORS | | |
730 | IPG_SM_IPCHECKSUMERRORS, STATISTICS_MASK); | |
731 | ||
732 | return 0; | |
733 | } | |
734 | ||
735 | /* | |
736 | * Create a receive buffer within system memory and update | |
737 | * NIC private structure appropriately. | |
738 | */ | |
739 | static int ipg_get_rxbuff(struct net_device *dev, int entry) | |
740 | { | |
741 | struct ipg_nic_private *sp = netdev_priv(dev); | |
742 | struct ipg_rx *rxfd = sp->rxd + entry; | |
743 | struct sk_buff *skb; | |
744 | u64 rxfragsize; | |
745 | ||
746 | IPG_DEBUG_MSG("_get_rxbuff\n"); | |
747 | ||
89d71a66 | 748 | skb = netdev_alloc_skb_ip_align(dev, sp->rxsupport_size); |
1202d6ff | 749 | if (!skb) { |
9893ba16 | 750 | sp->rx_buff[entry] = NULL; |
1202d6ff FR |
751 | return -ENOMEM; |
752 | } | |
753 | ||
1202d6ff FR |
754 | /* Associate the receive buffer with the IPG NIC. */ |
755 | skb->dev = dev; | |
756 | ||
757 | /* Save the address of the sk_buff structure. */ | |
9893ba16 | 758 | sp->rx_buff[entry] = skb; |
1202d6ff FR |
759 | |
760 | rxfd->frag_info = cpu_to_le64(pci_map_single(sp->pdev, skb->data, | |
761 | sp->rx_buf_sz, PCI_DMA_FROMDEVICE)); | |
762 | ||
763 | /* Set the RFD fragment length. */ | |
18a9cdb9 | 764 | rxfragsize = sp->rxfrag_size; |
1202d6ff FR |
765 | rxfd->frag_info |= cpu_to_le64((rxfragsize << 48) & IPG_RFI_FRAGLEN); |
766 | ||
767 | return 0; | |
768 | } | |
769 | ||
770 | static int init_rfdlist(struct net_device *dev) | |
771 | { | |
772 | struct ipg_nic_private *sp = netdev_priv(dev); | |
773 | void __iomem *ioaddr = sp->ioaddr; | |
774 | unsigned int i; | |
775 | ||
776 | IPG_DEBUG_MSG("_init_rfdlist\n"); | |
777 | ||
778 | for (i = 0; i < IPG_RFDLIST_LENGTH; i++) { | |
779 | struct ipg_rx *rxfd = sp->rxd + i; | |
780 | ||
9893ba16 | 781 | if (sp->rx_buff[i]) { |
1202d6ff | 782 | pci_unmap_single(sp->pdev, |
325a8071 | 783 | le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, |
1202d6ff | 784 | sp->rx_buf_sz, PCI_DMA_FROMDEVICE); |
9893ba16 PE |
785 | dev_kfree_skb_irq(sp->rx_buff[i]); |
786 | sp->rx_buff[i] = NULL; | |
1202d6ff FR |
787 | } |
788 | ||
789 | /* Clear out the RFS field. */ | |
790 | rxfd->rfs = 0x0000000000000000; | |
791 | ||
792 | if (ipg_get_rxbuff(dev, i) < 0) { | |
793 | /* | |
794 | * A receive buffer was not ready, break the | |
795 | * RFD list here. | |
796 | */ | |
c9ea53d0 | 797 | IPG_DEBUG_MSG("Cannot allocate Rx buffer\n"); |
1202d6ff FR |
798 | |
799 | /* Just in case we cannot allocate a single RFD. | |
800 | * Should not occur. | |
801 | */ | |
802 | if (i == 0) { | |
c9ea53d0 | 803 | netdev_err(dev, "No memory available for RFD list\n"); |
1202d6ff FR |
804 | return -ENOMEM; |
805 | } | |
806 | } | |
807 | ||
808 | rxfd->next_desc = cpu_to_le64(sp->rxd_map + | |
809 | sizeof(struct ipg_rx)*(i + 1)); | |
810 | } | |
811 | sp->rxd[i - 1].next_desc = cpu_to_le64(sp->rxd_map); | |
812 | ||
813 | sp->rx_current = 0; | |
814 | sp->rx_dirty = 0; | |
815 | ||
816 | /* Write the location of the RFDList to the IPG. */ | |
817 | ipg_w32((u32) sp->rxd_map, RFD_LIST_PTR_0); | |
818 | ipg_w32(0x00000000, RFD_LIST_PTR_1); | |
819 | ||
820 | return 0; | |
821 | } | |
822 | ||
823 | static void init_tfdlist(struct net_device *dev) | |
824 | { | |
825 | struct ipg_nic_private *sp = netdev_priv(dev); | |
826 | void __iomem *ioaddr = sp->ioaddr; | |
827 | unsigned int i; | |
828 | ||
829 | IPG_DEBUG_MSG("_init_tfdlist\n"); | |
830 | ||
831 | for (i = 0; i < IPG_TFDLIST_LENGTH; i++) { | |
832 | struct ipg_tx *txfd = sp->txd + i; | |
833 | ||
834 | txfd->tfc = cpu_to_le64(IPG_TFC_TFDDONE); | |
835 | ||
9893ba16 PE |
836 | if (sp->tx_buff[i]) { |
837 | dev_kfree_skb_irq(sp->tx_buff[i]); | |
838 | sp->tx_buff[i] = NULL; | |
1202d6ff FR |
839 | } |
840 | ||
841 | txfd->next_desc = cpu_to_le64(sp->txd_map + | |
842 | sizeof(struct ipg_tx)*(i + 1)); | |
843 | } | |
844 | sp->txd[i - 1].next_desc = cpu_to_le64(sp->txd_map); | |
845 | ||
846 | sp->tx_current = 0; | |
847 | sp->tx_dirty = 0; | |
848 | ||
849 | /* Write the location of the TFDList to the IPG. */ | |
c9ea53d0 | 850 | IPG_DDEBUG_MSG("Starting TFDListPtr = %08x\n", |
1202d6ff FR |
851 | (u32) sp->txd_map); |
852 | ipg_w32((u32) sp->txd_map, TFD_LIST_PTR_0); | |
853 | ipg_w32(0x00000000, TFD_LIST_PTR_1); | |
854 | ||
9893ba16 | 855 | sp->reset_current_tfd = 1; |
1202d6ff FR |
856 | } |
857 | ||
858 | /* | |
25985edc | 859 | * Free all transmit buffers which have already been transferred |
1202d6ff FR |
860 | * via DMA to the IPG. |
861 | */ | |
862 | static void ipg_nic_txfree(struct net_device *dev) | |
863 | { | |
864 | struct ipg_nic_private *sp = netdev_priv(dev); | |
0da1b995 | 865 | unsigned int released, pending, dirty; |
1dad939d | 866 | |
1202d6ff FR |
867 | IPG_DEBUG_MSG("_nic_txfree\n"); |
868 | ||
869 | pending = sp->tx_current - sp->tx_dirty; | |
0da1b995 | 870 | dirty = sp->tx_dirty % IPG_TFDLIST_LENGTH; |
1202d6ff FR |
871 | |
872 | for (released = 0; released < pending; released++) { | |
9893ba16 | 873 | struct sk_buff *skb = sp->tx_buff[dirty]; |
1202d6ff FR |
874 | struct ipg_tx *txfd = sp->txd + dirty; |
875 | ||
c9ea53d0 | 876 | IPG_DEBUG_MSG("TFC = %016lx\n", (unsigned long) txfd->tfc); |
1202d6ff FR |
877 | |
878 | /* Look at each TFD's TFC field beginning | |
879 | * at the last freed TFD up to the current TFD. | |
880 | * If the TFDDone bit is set, free the associated | |
881 | * buffer. | |
882 | */ | |
0da1b995 FR |
883 | if (!(txfd->tfc & cpu_to_le64(IPG_TFC_TFDDONE))) |
884 | break; | |
1202d6ff FR |
885 | |
886 | /* Free the transmit buffer. */ | |
887 | if (skb) { | |
888 | pci_unmap_single(sp->pdev, | |
325a8071 | 889 | le64_to_cpu(txfd->frag_info) & ~IPG_TFI_FRAGLEN, |
1202d6ff FR |
890 | skb->len, PCI_DMA_TODEVICE); |
891 | ||
85d68a58 | 892 | dev_kfree_skb_irq(skb); |
1202d6ff | 893 | |
9893ba16 | 894 | sp->tx_buff[dirty] = NULL; |
1202d6ff | 895 | } |
0da1b995 | 896 | dirty = (dirty + 1) % IPG_TFDLIST_LENGTH; |
1202d6ff FR |
897 | } |
898 | ||
899 | sp->tx_dirty += released; | |
900 | ||
901 | if (netif_queue_stopped(dev) && | |
902 | (sp->tx_current != (sp->tx_dirty + IPG_TFDLIST_LENGTH))) { | |
903 | netif_wake_queue(dev); | |
904 | } | |
905 | } | |
906 | ||
907 | static void ipg_tx_timeout(struct net_device *dev) | |
908 | { | |
909 | struct ipg_nic_private *sp = netdev_priv(dev); | |
910 | void __iomem *ioaddr = sp->ioaddr; | |
911 | ||
912 | ipg_reset(dev, IPG_AC_TX_RESET | IPG_AC_DMA | IPG_AC_NETWORK | | |
913 | IPG_AC_FIFO); | |
914 | ||
915 | spin_lock_irq(&sp->lock); | |
916 | ||
917 | /* Re-configure after DMA reset. */ | |
c9ea53d0 JP |
918 | if (ipg_io_config(dev) < 0) |
919 | netdev_info(dev, "Error during re-configuration\n"); | |
1202d6ff FR |
920 | |
921 | init_tfdlist(dev); | |
922 | ||
923 | spin_unlock_irq(&sp->lock); | |
924 | ||
925 | ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) & IPG_MC_RSVD_MASK, | |
926 | MAC_CTRL); | |
927 | } | |
928 | ||
929 | /* | |
930 | * For TxComplete interrupts, free all transmit | |
25985edc | 931 | * buffers which have already been transferred via DMA |
1202d6ff FR |
932 | * to the IPG. |
933 | */ | |
934 | static void ipg_nic_txcleanup(struct net_device *dev) | |
935 | { | |
936 | struct ipg_nic_private *sp = netdev_priv(dev); | |
937 | void __iomem *ioaddr = sp->ioaddr; | |
938 | unsigned int i; | |
939 | ||
940 | IPG_DEBUG_MSG("_nic_txcleanup\n"); | |
941 | ||
942 | for (i = 0; i < IPG_TFDLIST_LENGTH; i++) { | |
943 | /* Reading the TXSTATUS register clears the | |
944 | * TX_COMPLETE interrupt. | |
945 | */ | |
946 | u32 txstatusdword = ipg_r32(TX_STATUS); | |
947 | ||
c9ea53d0 | 948 | IPG_DEBUG_MSG("TxStatus = %08x\n", txstatusdword); |
1202d6ff FR |
949 | |
950 | /* Check for Transmit errors. Error bits only valid if | |
951 | * TX_COMPLETE bit in the TXSTATUS register is a 1. | |
952 | */ | |
953 | if (!(txstatusdword & IPG_TS_TX_COMPLETE)) | |
954 | break; | |
955 | ||
956 | /* If in 10Mbps mode, indicate transmit is ready. */ | |
957 | if (sp->tenmbpsmode) { | |
958 | netif_wake_queue(dev); | |
959 | } | |
960 | ||
961 | /* Transmit error, increment stat counters. */ | |
962 | if (txstatusdword & IPG_TS_TX_ERROR) { | |
c9ea53d0 | 963 | IPG_DEBUG_MSG("Transmit error\n"); |
1202d6ff FR |
964 | sp->stats.tx_errors++; |
965 | } | |
966 | ||
967 | /* Late collision, re-enable transmitter. */ | |
968 | if (txstatusdword & IPG_TS_LATE_COLLISION) { | |
c9ea53d0 | 969 | IPG_DEBUG_MSG("Late collision on transmit\n"); |
1202d6ff FR |
970 | ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) & |
971 | IPG_MC_RSVD_MASK, MAC_CTRL); | |
972 | } | |
973 | ||
974 | /* Maximum collisions, re-enable transmitter. */ | |
975 | if (txstatusdword & IPG_TS_TX_MAX_COLL) { | |
c9ea53d0 | 976 | IPG_DEBUG_MSG("Maximum collisions on transmit\n"); |
1202d6ff FR |
977 | ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) & |
978 | IPG_MC_RSVD_MASK, MAC_CTRL); | |
979 | } | |
980 | ||
981 | /* Transmit underrun, reset and re-enable | |
982 | * transmitter. | |
983 | */ | |
984 | if (txstatusdword & IPG_TS_TX_UNDERRUN) { | |
c9ea53d0 | 985 | IPG_DEBUG_MSG("Transmitter underrun\n"); |
1202d6ff FR |
986 | sp->stats.tx_fifo_errors++; |
987 | ipg_reset(dev, IPG_AC_TX_RESET | IPG_AC_DMA | | |
988 | IPG_AC_NETWORK | IPG_AC_FIFO); | |
989 | ||
990 | /* Re-configure after DMA reset. */ | |
991 | if (ipg_io_config(dev) < 0) { | |
c9ea53d0 | 992 | netdev_info(dev, "Error during re-configuration\n"); |
1202d6ff FR |
993 | } |
994 | init_tfdlist(dev); | |
995 | ||
996 | ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) & | |
997 | IPG_MC_RSVD_MASK, MAC_CTRL); | |
998 | } | |
999 | } | |
1000 | ||
1001 | ipg_nic_txfree(dev); | |
1002 | } | |
1003 | ||
1004 | /* Provides statistical information about the IPG NIC. */ | |
96fd74b2 | 1005 | static struct net_device_stats *ipg_nic_get_stats(struct net_device *dev) |
1202d6ff FR |
1006 | { |
1007 | struct ipg_nic_private *sp = netdev_priv(dev); | |
1008 | void __iomem *ioaddr = sp->ioaddr; | |
1009 | u16 temp1; | |
1010 | u16 temp2; | |
1011 | ||
1012 | IPG_DEBUG_MSG("_nic_get_stats\n"); | |
1013 | ||
1014 | /* Check to see if the NIC has been initialized via nic_open, | |
1015 | * before trying to read statistic registers. | |
1016 | */ | |
1017 | if (!test_bit(__LINK_STATE_START, &dev->state)) | |
1018 | return &sp->stats; | |
1019 | ||
1020 | sp->stats.rx_packets += ipg_r32(IPG_FRAMESRCVDOK); | |
1021 | sp->stats.tx_packets += ipg_r32(IPG_FRAMESXMTDOK); | |
1022 | sp->stats.rx_bytes += ipg_r32(IPG_OCTETRCVOK); | |
1023 | sp->stats.tx_bytes += ipg_r32(IPG_OCTETXMTOK); | |
1024 | temp1 = ipg_r16(IPG_FRAMESLOSTRXERRORS); | |
1025 | sp->stats.rx_errors += temp1; | |
1026 | sp->stats.rx_missed_errors += temp1; | |
1027 | temp1 = ipg_r32(IPG_SINGLECOLFRAMES) + ipg_r32(IPG_MULTICOLFRAMES) + | |
1028 | ipg_r32(IPG_LATECOLLISIONS); | |
1029 | temp2 = ipg_r16(IPG_CARRIERSENSEERRORS); | |
1030 | sp->stats.collisions += temp1; | |
1031 | sp->stats.tx_dropped += ipg_r16(IPG_FRAMESABORTXSCOLLS); | |
1032 | sp->stats.tx_errors += ipg_r16(IPG_FRAMESWEXDEFERRAL) + | |
1033 | ipg_r32(IPG_FRAMESWDEFERREDXMT) + temp1 + temp2; | |
1034 | sp->stats.multicast += ipg_r32(IPG_MCSTOCTETRCVDOK); | |
1035 | ||
1036 | /* detailed tx_errors */ | |
1037 | sp->stats.tx_carrier_errors += temp2; | |
1038 | ||
1039 | /* detailed rx_errors */ | |
1040 | sp->stats.rx_length_errors += ipg_r16(IPG_INRANGELENGTHERRORS) + | |
1041 | ipg_r16(IPG_FRAMETOOLONGERRRORS); | |
1042 | sp->stats.rx_crc_errors += ipg_r16(IPG_FRAMECHECKSEQERRORS); | |
1043 | ||
1044 | /* Unutilized IPG statistic registers. */ | |
1045 | ipg_r32(IPG_MCSTFRAMESRCVDOK); | |
1046 | ||
1047 | return &sp->stats; | |
1048 | } | |
1049 | ||
1050 | /* Restore used receive buffers. */ | |
1051 | static int ipg_nic_rxrestore(struct net_device *dev) | |
1052 | { | |
1053 | struct ipg_nic_private *sp = netdev_priv(dev); | |
1054 | const unsigned int curr = sp->rx_current; | |
1055 | unsigned int dirty = sp->rx_dirty; | |
1056 | ||
1057 | IPG_DEBUG_MSG("_nic_rxrestore\n"); | |
1058 | ||
1059 | for (dirty = sp->rx_dirty; curr - dirty > 0; dirty++) { | |
1060 | unsigned int entry = dirty % IPG_RFDLIST_LENGTH; | |
1061 | ||
1062 | /* rx_copybreak may poke hole here and there. */ | |
9893ba16 | 1063 | if (sp->rx_buff[entry]) |
1202d6ff FR |
1064 | continue; |
1065 | ||
1066 | /* Generate a new receive buffer to replace the | |
1067 | * current buffer (which will be released by the | |
1068 | * Linux system). | |
1069 | */ | |
1070 | if (ipg_get_rxbuff(dev, entry) < 0) { | |
c9ea53d0 | 1071 | IPG_DEBUG_MSG("Cannot allocate new Rx buffer\n"); |
1202d6ff FR |
1072 | |
1073 | break; | |
1074 | } | |
1075 | ||
1076 | /* Reset the RFS field. */ | |
1077 | sp->rxd[entry].rfs = 0x0000000000000000; | |
1078 | } | |
1079 | sp->rx_dirty = dirty; | |
1080 | ||
1081 | return 0; | |
1082 | } | |
1083 | ||
1202d6ff | 1084 | /* use jumboindex and jumbosize to control jumbo frame status |
8da5bb7a PE |
1085 | * initial status is jumboindex=-1 and jumbosize=0 |
1086 | * 1. jumboindex = -1 and jumbosize=0 : previous jumbo frame has been done. | |
1087 | * 2. jumboindex != -1 and jumbosize != 0 : jumbo frame is not over size and receiving | |
1088 | * 3. jumboindex = -1 and jumbosize != 0 : jumbo frame is over size, already dump | |
1089 | * previous receiving and need to continue dumping the current one | |
1090 | */ | |
1202d6ff | 1091 | enum { |
9893ba16 PE |
1092 | NORMAL_PACKET, |
1093 | ERROR_PACKET | |
1202d6ff FR |
1094 | }; |
1095 | ||
1096 | enum { | |
9893ba16 PE |
1097 | FRAME_NO_START_NO_END = 0, |
1098 | FRAME_WITH_START = 1, | |
1099 | FRAME_WITH_END = 10, | |
1100 | FRAME_WITH_START_WITH_END = 11 | |
1202d6ff FR |
1101 | }; |
1102 | ||
024f4d88 | 1103 | static void ipg_nic_rx_free_skb(struct net_device *dev) |
1202d6ff FR |
1104 | { |
1105 | struct ipg_nic_private *sp = netdev_priv(dev); | |
1106 | unsigned int entry = sp->rx_current % IPG_RFDLIST_LENGTH; | |
1107 | ||
9893ba16 | 1108 | if (sp->rx_buff[entry]) { |
1202d6ff FR |
1109 | struct ipg_rx *rxfd = sp->rxd + entry; |
1110 | ||
1111 | pci_unmap_single(sp->pdev, | |
b88ed5cc | 1112 | le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, |
1202d6ff | 1113 | sp->rx_buf_sz, PCI_DMA_FROMDEVICE); |
9893ba16 PE |
1114 | dev_kfree_skb_irq(sp->rx_buff[entry]); |
1115 | sp->rx_buff[entry] = NULL; | |
1202d6ff FR |
1116 | } |
1117 | } | |
1118 | ||
024f4d88 | 1119 | static int ipg_nic_rx_check_frame_type(struct net_device *dev) |
1202d6ff FR |
1120 | { |
1121 | struct ipg_nic_private *sp = netdev_priv(dev); | |
1122 | struct ipg_rx *rxfd = sp->rxd + (sp->rx_current % IPG_RFDLIST_LENGTH); | |
9893ba16 | 1123 | int type = FRAME_NO_START_NO_END; |
1202d6ff FR |
1124 | |
1125 | if (le64_to_cpu(rxfd->rfs) & IPG_RFS_FRAMESTART) | |
9893ba16 | 1126 | type += FRAME_WITH_START; |
1202d6ff | 1127 | if (le64_to_cpu(rxfd->rfs) & IPG_RFS_FRAMEEND) |
9893ba16 | 1128 | type += FRAME_WITH_END; |
1202d6ff FR |
1129 | return type; |
1130 | } | |
1131 | ||
024f4d88 | 1132 | static int ipg_nic_rx_check_error(struct net_device *dev) |
1202d6ff FR |
1133 | { |
1134 | struct ipg_nic_private *sp = netdev_priv(dev); | |
1135 | unsigned int entry = sp->rx_current % IPG_RFDLIST_LENGTH; | |
1136 | struct ipg_rx *rxfd = sp->rxd + entry; | |
1137 | ||
1138 | if (IPG_DROP_ON_RX_ETH_ERRORS && (le64_to_cpu(rxfd->rfs) & | |
1139 | (IPG_RFS_RXFIFOOVERRUN | IPG_RFS_RXRUNTFRAME | | |
1140 | IPG_RFS_RXALIGNMENTERROR | IPG_RFS_RXFCSERROR | | |
1141 | IPG_RFS_RXOVERSIZEDFRAME | IPG_RFS_RXLENGTHERROR))) { | |
c9ea53d0 | 1142 | IPG_DEBUG_MSG("Rx error, RFS = %016lx\n", |
1202d6ff FR |
1143 | (unsigned long) rxfd->rfs); |
1144 | ||
1145 | /* Increment general receive error statistic. */ | |
1146 | sp->stats.rx_errors++; | |
1147 | ||
1148 | /* Increment detailed receive error statistics. */ | |
1149 | if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFIFOOVERRUN) { | |
c9ea53d0 | 1150 | IPG_DEBUG_MSG("RX FIFO overrun occurred\n"); |
1202d6ff FR |
1151 | |
1152 | sp->stats.rx_fifo_errors++; | |
1153 | } | |
1154 | ||
1155 | if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXRUNTFRAME) { | |
c9ea53d0 | 1156 | IPG_DEBUG_MSG("RX runt occurred\n"); |
1202d6ff FR |
1157 | sp->stats.rx_length_errors++; |
1158 | } | |
1159 | ||
1160 | /* Do nothing for IPG_RFS_RXOVERSIZEDFRAME, | |
1161 | * error count handled by a IPG statistic register. | |
1162 | */ | |
1163 | ||
1164 | if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXALIGNMENTERROR) { | |
c9ea53d0 | 1165 | IPG_DEBUG_MSG("RX alignment error occurred\n"); |
1202d6ff FR |
1166 | sp->stats.rx_frame_errors++; |
1167 | } | |
1168 | ||
1169 | /* Do nothing for IPG_RFS_RXFCSERROR, error count | |
1170 | * handled by a IPG statistic register. | |
1171 | */ | |
1172 | ||
1173 | /* Free the memory associated with the RX | |
1174 | * buffer since it is erroneous and we will | |
1175 | * not pass it to higher layer processes. | |
1176 | */ | |
9893ba16 | 1177 | if (sp->rx_buff[entry]) { |
1202d6ff | 1178 | pci_unmap_single(sp->pdev, |
b88ed5cc | 1179 | le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, |
1202d6ff FR |
1180 | sp->rx_buf_sz, PCI_DMA_FROMDEVICE); |
1181 | ||
9893ba16 PE |
1182 | dev_kfree_skb_irq(sp->rx_buff[entry]); |
1183 | sp->rx_buff[entry] = NULL; | |
1202d6ff | 1184 | } |
9893ba16 | 1185 | return ERROR_PACKET; |
1202d6ff | 1186 | } |
9893ba16 | 1187 | return NORMAL_PACKET; |
1202d6ff FR |
1188 | } |
1189 | ||
1190 | static void ipg_nic_rx_with_start_and_end(struct net_device *dev, | |
1191 | struct ipg_nic_private *sp, | |
1192 | struct ipg_rx *rxfd, unsigned entry) | |
1193 | { | |
9893ba16 | 1194 | struct ipg_jumbo *jumbo = &sp->jumbo; |
1202d6ff FR |
1195 | struct sk_buff *skb; |
1196 | int framelen; | |
1197 | ||
9893ba16 | 1198 | if (jumbo->found_start) { |
85d68a58 | 1199 | dev_kfree_skb_irq(jumbo->skb); |
9893ba16 PE |
1200 | jumbo->found_start = 0; |
1201 | jumbo->current_size = 0; | |
1202d6ff FR |
1202 | jumbo->skb = NULL; |
1203 | } | |
1204 | ||
8da5bb7a | 1205 | /* 1: found error, 0 no error */ |
9893ba16 | 1206 | if (ipg_nic_rx_check_error(dev) != NORMAL_PACKET) |
1202d6ff FR |
1207 | return; |
1208 | ||
9893ba16 | 1209 | skb = sp->rx_buff[entry]; |
1202d6ff FR |
1210 | if (!skb) |
1211 | return; | |
1212 | ||
8da5bb7a | 1213 | /* accept this frame and send to upper layer */ |
1202d6ff | 1214 | framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN; |
18a9cdb9 PE |
1215 | if (framelen > sp->rxfrag_size) |
1216 | framelen = sp->rxfrag_size; | |
1202d6ff FR |
1217 | |
1218 | skb_put(skb, framelen); | |
1219 | skb->protocol = eth_type_trans(skb, dev); | |
bc8acf2c | 1220 | skb_checksum_none_assert(skb); |
1202d6ff | 1221 | netif_rx(skb); |
9893ba16 | 1222 | sp->rx_buff[entry] = NULL; |
1202d6ff FR |
1223 | } |
1224 | ||
1225 | static void ipg_nic_rx_with_start(struct net_device *dev, | |
1226 | struct ipg_nic_private *sp, | |
1227 | struct ipg_rx *rxfd, unsigned entry) | |
1228 | { | |
9893ba16 | 1229 | struct ipg_jumbo *jumbo = &sp->jumbo; |
1202d6ff FR |
1230 | struct pci_dev *pdev = sp->pdev; |
1231 | struct sk_buff *skb; | |
1232 | ||
8da5bb7a | 1233 | /* 1: found error, 0 no error */ |
9893ba16 | 1234 | if (ipg_nic_rx_check_error(dev) != NORMAL_PACKET) |
1202d6ff FR |
1235 | return; |
1236 | ||
8da5bb7a | 1237 | /* accept this frame and send to upper layer */ |
9893ba16 | 1238 | skb = sp->rx_buff[entry]; |
1202d6ff FR |
1239 | if (!skb) |
1240 | return; | |
1241 | ||
9893ba16 | 1242 | if (jumbo->found_start) |
85d68a58 | 1243 | dev_kfree_skb_irq(jumbo->skb); |
1202d6ff | 1244 | |
b88ed5cc | 1245 | pci_unmap_single(pdev, le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, |
1202d6ff FR |
1246 | sp->rx_buf_sz, PCI_DMA_FROMDEVICE); |
1247 | ||
18a9cdb9 | 1248 | skb_put(skb, sp->rxfrag_size); |
1202d6ff | 1249 | |
9893ba16 | 1250 | jumbo->found_start = 1; |
18a9cdb9 | 1251 | jumbo->current_size = sp->rxfrag_size; |
1202d6ff FR |
1252 | jumbo->skb = skb; |
1253 | ||
9893ba16 | 1254 | sp->rx_buff[entry] = NULL; |
1202d6ff FR |
1255 | } |
1256 | ||
1257 | static void ipg_nic_rx_with_end(struct net_device *dev, | |
1258 | struct ipg_nic_private *sp, | |
1259 | struct ipg_rx *rxfd, unsigned entry) | |
1260 | { | |
9893ba16 | 1261 | struct ipg_jumbo *jumbo = &sp->jumbo; |
1202d6ff | 1262 | |
8da5bb7a | 1263 | /* 1: found error, 0 no error */ |
9893ba16 PE |
1264 | if (ipg_nic_rx_check_error(dev) == NORMAL_PACKET) { |
1265 | struct sk_buff *skb = sp->rx_buff[entry]; | |
1202d6ff FR |
1266 | |
1267 | if (!skb) | |
1268 | return; | |
1269 | ||
9893ba16 | 1270 | if (jumbo->found_start) { |
1202d6ff FR |
1271 | int framelen, endframelen; |
1272 | ||
1273 | framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN; | |
1274 | ||
ecfecfb5 | 1275 | endframelen = framelen - jumbo->current_size; |
39f20585 | 1276 | if (framelen > sp->rxsupport_size) |
85d68a58 | 1277 | dev_kfree_skb_irq(jumbo->skb); |
1202d6ff | 1278 | else { |
ecfecfb5 PE |
1279 | memcpy(skb_put(jumbo->skb, endframelen), |
1280 | skb->data, endframelen); | |
1202d6ff FR |
1281 | |
1282 | jumbo->skb->protocol = | |
1283 | eth_type_trans(jumbo->skb, dev); | |
1284 | ||
bc8acf2c | 1285 | skb_checksum_none_assert(jumbo->skb); |
1202d6ff FR |
1286 | netif_rx(jumbo->skb); |
1287 | } | |
1288 | } | |
1289 | ||
9893ba16 PE |
1290 | jumbo->found_start = 0; |
1291 | jumbo->current_size = 0; | |
1202d6ff FR |
1292 | jumbo->skb = NULL; |
1293 | ||
1294 | ipg_nic_rx_free_skb(dev); | |
1295 | } else { | |
85d68a58 | 1296 | dev_kfree_skb_irq(jumbo->skb); |
9893ba16 PE |
1297 | jumbo->found_start = 0; |
1298 | jumbo->current_size = 0; | |
1202d6ff FR |
1299 | jumbo->skb = NULL; |
1300 | } | |
1301 | } | |
1302 | ||
1303 | static void ipg_nic_rx_no_start_no_end(struct net_device *dev, | |
1304 | struct ipg_nic_private *sp, | |
1305 | struct ipg_rx *rxfd, unsigned entry) | |
1306 | { | |
9893ba16 | 1307 | struct ipg_jumbo *jumbo = &sp->jumbo; |
1202d6ff | 1308 | |
8da5bb7a | 1309 | /* 1: found error, 0 no error */ |
9893ba16 PE |
1310 | if (ipg_nic_rx_check_error(dev) == NORMAL_PACKET) { |
1311 | struct sk_buff *skb = sp->rx_buff[entry]; | |
1202d6ff FR |
1312 | |
1313 | if (skb) { | |
9893ba16 | 1314 | if (jumbo->found_start) { |
18a9cdb9 | 1315 | jumbo->current_size += sp->rxfrag_size; |
39f20585 | 1316 | if (jumbo->current_size <= sp->rxsupport_size) { |
1202d6ff | 1317 | memcpy(skb_put(jumbo->skb, |
18a9cdb9 PE |
1318 | sp->rxfrag_size), |
1319 | skb->data, sp->rxfrag_size); | |
1202d6ff FR |
1320 | } |
1321 | } | |
1202d6ff FR |
1322 | ipg_nic_rx_free_skb(dev); |
1323 | } | |
1324 | } else { | |
85d68a58 | 1325 | dev_kfree_skb_irq(jumbo->skb); |
9893ba16 PE |
1326 | jumbo->found_start = 0; |
1327 | jumbo->current_size = 0; | |
1202d6ff FR |
1328 | jumbo->skb = NULL; |
1329 | } | |
1330 | } | |
1331 | ||
024f4d88 | 1332 | static int ipg_nic_rx_jumbo(struct net_device *dev) |
1202d6ff FR |
1333 | { |
1334 | struct ipg_nic_private *sp = netdev_priv(dev); | |
1335 | unsigned int curr = sp->rx_current; | |
1336 | void __iomem *ioaddr = sp->ioaddr; | |
1337 | unsigned int i; | |
1338 | ||
1339 | IPG_DEBUG_MSG("_nic_rx\n"); | |
1340 | ||
1341 | for (i = 0; i < IPG_MAXRFDPROCESS_COUNT; i++, curr++) { | |
1342 | unsigned int entry = curr % IPG_RFDLIST_LENGTH; | |
1343 | struct ipg_rx *rxfd = sp->rxd + entry; | |
1344 | ||
b88ed5cc | 1345 | if (!(rxfd->rfs & cpu_to_le64(IPG_RFS_RFDDONE))) |
1202d6ff FR |
1346 | break; |
1347 | ||
1348 | switch (ipg_nic_rx_check_frame_type(dev)) { | |
9893ba16 | 1349 | case FRAME_WITH_START_WITH_END: |
ecfecfb5 | 1350 | ipg_nic_rx_with_start_and_end(dev, sp, rxfd, entry); |
1202d6ff | 1351 | break; |
9893ba16 | 1352 | case FRAME_WITH_START: |
ecfecfb5 | 1353 | ipg_nic_rx_with_start(dev, sp, rxfd, entry); |
1202d6ff | 1354 | break; |
9893ba16 | 1355 | case FRAME_WITH_END: |
ecfecfb5 | 1356 | ipg_nic_rx_with_end(dev, sp, rxfd, entry); |
1202d6ff | 1357 | break; |
9893ba16 | 1358 | case FRAME_NO_START_NO_END: |
ecfecfb5 | 1359 | ipg_nic_rx_no_start_no_end(dev, sp, rxfd, entry); |
1202d6ff FR |
1360 | break; |
1361 | } | |
1362 | } | |
1363 | ||
1364 | sp->rx_current = curr; | |
1365 | ||
1366 | if (i == IPG_MAXRFDPROCESS_COUNT) { | |
1367 | /* There are more RFDs to process, however the | |
1368 | * allocated amount of RFD processing time has | |
1369 | * expired. Assert Interrupt Requested to make | |
1370 | * sure we come back to process the remaining RFDs. | |
1371 | */ | |
1372 | ipg_w32(ipg_r32(ASIC_CTRL) | IPG_AC_INT_REQUEST, ASIC_CTRL); | |
1373 | } | |
1374 | ||
1375 | ipg_nic_rxrestore(dev); | |
1376 | ||
1377 | return 0; | |
1378 | } | |
1379 | ||
1202d6ff FR |
1380 | static int ipg_nic_rx(struct net_device *dev) |
1381 | { | |
1382 | /* Transfer received Ethernet frames to higher network layers. */ | |
1383 | struct ipg_nic_private *sp = netdev_priv(dev); | |
1384 | unsigned int curr = sp->rx_current; | |
1385 | void __iomem *ioaddr = sp->ioaddr; | |
1386 | struct ipg_rx *rxfd; | |
1387 | unsigned int i; | |
1388 | ||
1389 | IPG_DEBUG_MSG("_nic_rx\n"); | |
1390 | ||
1391 | #define __RFS_MASK \ | |
1392 | cpu_to_le64(IPG_RFS_RFDDONE | IPG_RFS_FRAMESTART | IPG_RFS_FRAMEEND) | |
1393 | ||
1394 | for (i = 0; i < IPG_MAXRFDPROCESS_COUNT; i++, curr++) { | |
1395 | unsigned int entry = curr % IPG_RFDLIST_LENGTH; | |
9893ba16 | 1396 | struct sk_buff *skb = sp->rx_buff[entry]; |
1202d6ff FR |
1397 | unsigned int framelen; |
1398 | ||
1399 | rxfd = sp->rxd + entry; | |
1400 | ||
1401 | if (((rxfd->rfs & __RFS_MASK) != __RFS_MASK) || !skb) | |
1402 | break; | |
1403 | ||
1404 | /* Get received frame length. */ | |
1405 | framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN; | |
1406 | ||
1407 | /* Check for jumbo frame arrival with too small | |
1408 | * RXFRAG_SIZE. | |
1409 | */ | |
18a9cdb9 | 1410 | if (framelen > sp->rxfrag_size) { |
1202d6ff | 1411 | IPG_DEBUG_MSG |
c9ea53d0 | 1412 | ("RFS FrameLen > allocated fragment size\n"); |
1202d6ff | 1413 | |
18a9cdb9 | 1414 | framelen = sp->rxfrag_size; |
1202d6ff FR |
1415 | } |
1416 | ||
325a8071 | 1417 | if ((IPG_DROP_ON_RX_ETH_ERRORS && (le64_to_cpu(rxfd->rfs) & |
1202d6ff FR |
1418 | (IPG_RFS_RXFIFOOVERRUN | IPG_RFS_RXRUNTFRAME | |
1419 | IPG_RFS_RXALIGNMENTERROR | IPG_RFS_RXFCSERROR | | |
325a8071 | 1420 | IPG_RFS_RXOVERSIZEDFRAME | IPG_RFS_RXLENGTHERROR)))) { |
1202d6ff | 1421 | |
c9ea53d0 | 1422 | IPG_DEBUG_MSG("Rx error, RFS = %016lx\n", |
1202d6ff FR |
1423 | (unsigned long int) rxfd->rfs); |
1424 | ||
1425 | /* Increment general receive error statistic. */ | |
1426 | sp->stats.rx_errors++; | |
1427 | ||
1428 | /* Increment detailed receive error statistics. */ | |
325a8071 | 1429 | if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFIFOOVERRUN) { |
c9ea53d0 | 1430 | IPG_DEBUG_MSG("RX FIFO overrun occurred\n"); |
1202d6ff FR |
1431 | sp->stats.rx_fifo_errors++; |
1432 | } | |
1433 | ||
325a8071 | 1434 | if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXRUNTFRAME) { |
c9ea53d0 | 1435 | IPG_DEBUG_MSG("RX runt occurred\n"); |
1202d6ff FR |
1436 | sp->stats.rx_length_errors++; |
1437 | } | |
1438 | ||
325a8071 | 1439 | if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXOVERSIZEDFRAME) ; |
1202d6ff FR |
1440 | /* Do nothing, error count handled by a IPG |
1441 | * statistic register. | |
1442 | */ | |
1443 | ||
325a8071 | 1444 | if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXALIGNMENTERROR) { |
c9ea53d0 | 1445 | IPG_DEBUG_MSG("RX alignment error occurred\n"); |
1202d6ff FR |
1446 | sp->stats.rx_frame_errors++; |
1447 | } | |
1448 | ||
325a8071 | 1449 | if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFCSERROR) ; |
1202d6ff FR |
1450 | /* Do nothing, error count handled by a IPG |
1451 | * statistic register. | |
1452 | */ | |
1453 | ||
1454 | /* Free the memory associated with the RX | |
1455 | * buffer since it is erroneous and we will | |
1456 | * not pass it to higher layer processes. | |
1457 | */ | |
1458 | if (skb) { | |
325a8071 | 1459 | __le64 info = rxfd->frag_info; |
1202d6ff FR |
1460 | |
1461 | pci_unmap_single(sp->pdev, | |
325a8071 | 1462 | le64_to_cpu(info) & ~IPG_RFI_FRAGLEN, |
1202d6ff FR |
1463 | sp->rx_buf_sz, PCI_DMA_FROMDEVICE); |
1464 | ||
85d68a58 | 1465 | dev_kfree_skb_irq(skb); |
1202d6ff FR |
1466 | } |
1467 | } else { | |
1468 | ||
25985edc | 1469 | /* Adjust the new buffer length to accommodate the size |
1202d6ff FR |
1470 | * of the received frame. |
1471 | */ | |
1472 | skb_put(skb, framelen); | |
1473 | ||
1474 | /* Set the buffer's protocol field to Ethernet. */ | |
1475 | skb->protocol = eth_type_trans(skb, dev); | |
1476 | ||
6d3b2cb9 PE |
1477 | /* The IPG encountered an error with (or |
1478 | * there were no) IP/TCP/UDP checksums. | |
1479 | * This may or may not indicate an invalid | |
1480 | * IP/TCP/UDP frame was received. Let the | |
1481 | * upper layer decide. | |
1202d6ff | 1482 | */ |
bc8acf2c | 1483 | skb_checksum_none_assert(skb); |
1202d6ff FR |
1484 | |
1485 | /* Hand off frame for higher layer processing. | |
1486 | * The function netif_rx() releases the sk_buff | |
1487 | * when processing completes. | |
1488 | */ | |
1489 | netif_rx(skb); | |
1202d6ff FR |
1490 | } |
1491 | ||
1492 | /* Assure RX buffer is not reused by IPG. */ | |
9893ba16 | 1493 | sp->rx_buff[entry] = NULL; |
1202d6ff FR |
1494 | } |
1495 | ||
1496 | /* | |
25985edc | 1497 | * If there are more RFDs to process and the allocated amount of RFD |
1202d6ff FR |
1498 | * processing time has expired, assert Interrupt Requested to make |
1499 | * sure we come back to process the remaining RFDs. | |
1500 | */ | |
1501 | if (i == IPG_MAXRFDPROCESS_COUNT) | |
1502 | ipg_w32(ipg_r32(ASIC_CTRL) | IPG_AC_INT_REQUEST, ASIC_CTRL); | |
1503 | ||
1504 | #ifdef IPG_DEBUG | |
1505 | /* Check if the RFD list contained no receive frame data. */ | |
1506 | if (!i) | |
1507 | sp->EmptyRFDListCount++; | |
1508 | #endif | |
325a8071 AV |
1509 | while ((le64_to_cpu(rxfd->rfs) & IPG_RFS_RFDDONE) && |
1510 | !((le64_to_cpu(rxfd->rfs) & IPG_RFS_FRAMESTART) && | |
1511 | (le64_to_cpu(rxfd->rfs) & IPG_RFS_FRAMEEND))) { | |
1202d6ff FR |
1512 | unsigned int entry = curr++ % IPG_RFDLIST_LENGTH; |
1513 | ||
1514 | rxfd = sp->rxd + entry; | |
1515 | ||
c9ea53d0 | 1516 | IPG_DEBUG_MSG("Frame requires multiple RFDs\n"); |
1202d6ff FR |
1517 | |
1518 | /* An unexpected event, additional code needed to handle | |
1519 | * properly. So for the time being, just disregard the | |
1520 | * frame. | |
1521 | */ | |
1522 | ||
1523 | /* Free the memory associated with the RX | |
1524 | * buffer since it is erroneous and we will | |
1525 | * not pass it to higher layer processes. | |
1526 | */ | |
9893ba16 | 1527 | if (sp->rx_buff[entry]) { |
1202d6ff | 1528 | pci_unmap_single(sp->pdev, |
325a8071 | 1529 | le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, |
1202d6ff | 1530 | sp->rx_buf_sz, PCI_DMA_FROMDEVICE); |
9893ba16 | 1531 | dev_kfree_skb_irq(sp->rx_buff[entry]); |
1202d6ff FR |
1532 | } |
1533 | ||
1534 | /* Assure RX buffer is not reused by IPG. */ | |
9893ba16 | 1535 | sp->rx_buff[entry] = NULL; |
1202d6ff FR |
1536 | } |
1537 | ||
1538 | sp->rx_current = curr; | |
1539 | ||
1540 | /* Check to see if there are a minimum number of used | |
1541 | * RFDs before restoring any (should improve performance.) | |
1542 | */ | |
1543 | if ((curr - sp->rx_dirty) >= IPG_MINUSEDRFDSTOFREE) | |
1544 | ipg_nic_rxrestore(dev); | |
1545 | ||
1546 | return 0; | |
1547 | } | |
1202d6ff FR |
1548 | |
1549 | static void ipg_reset_after_host_error(struct work_struct *work) | |
1550 | { | |
1551 | struct ipg_nic_private *sp = | |
1552 | container_of(work, struct ipg_nic_private, task.work); | |
1553 | struct net_device *dev = sp->dev; | |
1554 | ||
1202d6ff FR |
1555 | /* |
1556 | * Acknowledge HostError interrupt by resetting | |
1557 | * IPG DMA and HOST. | |
1558 | */ | |
1559 | ipg_reset(dev, IPG_AC_GLOBAL_RESET | IPG_AC_HOST | IPG_AC_DMA); | |
1560 | ||
1561 | init_rfdlist(dev); | |
1562 | init_tfdlist(dev); | |
1563 | ||
1564 | if (ipg_io_config(dev) < 0) { | |
c9ea53d0 | 1565 | netdev_info(dev, "Cannot recover from PCI error\n"); |
1202d6ff FR |
1566 | schedule_delayed_work(&sp->task, HZ); |
1567 | } | |
1568 | } | |
1569 | ||
1570 | static irqreturn_t ipg_interrupt_handler(int irq, void *dev_inst) | |
1571 | { | |
1572 | struct net_device *dev = dev_inst; | |
1573 | struct ipg_nic_private *sp = netdev_priv(dev); | |
1574 | void __iomem *ioaddr = sp->ioaddr; | |
1575 | unsigned int handled = 0; | |
1576 | u16 status; | |
1577 | ||
1578 | IPG_DEBUG_MSG("_interrupt_handler\n"); | |
1579 | ||
024f4d88 PE |
1580 | if (sp->is_jumbo) |
1581 | ipg_nic_rxrestore(dev); | |
1582 | ||
227bc24d FR |
1583 | spin_lock(&sp->lock); |
1584 | ||
1202d6ff FR |
1585 | /* Get interrupt source information, and acknowledge |
1586 | * some (i.e. TxDMAComplete, RxDMAComplete, RxEarly, | |
1587 | * IntRequested, MacControlFrame, LinkEvent) interrupts | |
1588 | * if issued. Also, all IPG interrupts are disabled by | |
1589 | * reading IntStatusAck. | |
1590 | */ | |
1591 | status = ipg_r16(INT_STATUS_ACK); | |
1592 | ||
c9ea53d0 | 1593 | IPG_DEBUG_MSG("IntStatusAck = %04x\n", status); |
1202d6ff FR |
1594 | |
1595 | /* Shared IRQ of remove event. */ | |
1596 | if (!(status & IPG_IS_RSVD_MASK)) | |
1597 | goto out_enable; | |
1598 | ||
1599 | handled = 1; | |
1600 | ||
1601 | if (unlikely(!netif_running(dev))) | |
227bc24d | 1602 | goto out_unlock; |
1202d6ff FR |
1603 | |
1604 | /* If RFDListEnd interrupt, restore all used RFDs. */ | |
1605 | if (status & IPG_IS_RFD_LIST_END) { | |
c9ea53d0 | 1606 | IPG_DEBUG_MSG("RFDListEnd Interrupt\n"); |
1202d6ff FR |
1607 | |
1608 | /* The RFD list end indicates an RFD was encountered | |
1609 | * with a 0 NextPtr, or with an RFDDone bit set to 1 | |
1610 | * (indicating the RFD is not read for use by the | |
1611 | * IPG.) Try to restore all RFDs. | |
1612 | */ | |
1613 | ipg_nic_rxrestore(dev); | |
1614 | ||
1615 | #ifdef IPG_DEBUG | |
1616 | /* Increment the RFDlistendCount counter. */ | |
1617 | sp->RFDlistendCount++; | |
1618 | #endif | |
1619 | } | |
1620 | ||
1621 | /* If RFDListEnd, RxDMAPriority, RxDMAComplete, or | |
1622 | * IntRequested interrupt, process received frames. */ | |
1623 | if ((status & IPG_IS_RX_DMA_PRIORITY) || | |
1624 | (status & IPG_IS_RFD_LIST_END) || | |
1625 | (status & IPG_IS_RX_DMA_COMPLETE) || | |
1626 | (status & IPG_IS_INT_REQUESTED)) { | |
1627 | #ifdef IPG_DEBUG | |
1628 | /* Increment the RFD list checked counter if interrupted | |
1629 | * only to check the RFD list. */ | |
1630 | if (status & (~(IPG_IS_RX_DMA_PRIORITY | IPG_IS_RFD_LIST_END | | |
1631 | IPG_IS_RX_DMA_COMPLETE | IPG_IS_INT_REQUESTED) & | |
1632 | (IPG_IS_HOST_ERROR | IPG_IS_TX_DMA_COMPLETE | | |
1633 | IPG_IS_LINK_EVENT | IPG_IS_TX_COMPLETE | | |
1634 | IPG_IS_UPDATE_STATS))) | |
1635 | sp->RFDListCheckedCount++; | |
1636 | #endif | |
1637 | ||
024f4d88 PE |
1638 | if (sp->is_jumbo) |
1639 | ipg_nic_rx_jumbo(dev); | |
1640 | else | |
1641 | ipg_nic_rx(dev); | |
1202d6ff FR |
1642 | } |
1643 | ||
1644 | /* If TxDMAComplete interrupt, free used TFDs. */ | |
1645 | if (status & IPG_IS_TX_DMA_COMPLETE) | |
1646 | ipg_nic_txfree(dev); | |
1647 | ||
1648 | /* TxComplete interrupts indicate one of numerous actions. | |
1649 | * Determine what action to take based on TXSTATUS register. | |
1650 | */ | |
1651 | if (status & IPG_IS_TX_COMPLETE) | |
1652 | ipg_nic_txcleanup(dev); | |
1653 | ||
1654 | /* If UpdateStats interrupt, update Linux Ethernet statistics */ | |
1655 | if (status & IPG_IS_UPDATE_STATS) | |
1656 | ipg_nic_get_stats(dev); | |
1657 | ||
1658 | /* If HostError interrupt, reset IPG. */ | |
1659 | if (status & IPG_IS_HOST_ERROR) { | |
1660 | IPG_DDEBUG_MSG("HostError Interrupt\n"); | |
1661 | ||
1662 | schedule_delayed_work(&sp->task, 0); | |
1663 | } | |
1664 | ||
1665 | /* If LinkEvent interrupt, resolve autonegotiation. */ | |
1666 | if (status & IPG_IS_LINK_EVENT) { | |
1667 | if (ipg_config_autoneg(dev) < 0) | |
c9ea53d0 | 1668 | netdev_info(dev, "Auto-negotiation error\n"); |
1202d6ff FR |
1669 | } |
1670 | ||
1671 | /* If MACCtrlFrame interrupt, do nothing. */ | |
1672 | if (status & IPG_IS_MAC_CTRL_FRAME) | |
c9ea53d0 | 1673 | IPG_DEBUG_MSG("MACCtrlFrame interrupt\n"); |
1202d6ff FR |
1674 | |
1675 | /* If RxComplete interrupt, do nothing. */ | |
1676 | if (status & IPG_IS_RX_COMPLETE) | |
c9ea53d0 | 1677 | IPG_DEBUG_MSG("RxComplete interrupt\n"); |
1202d6ff FR |
1678 | |
1679 | /* If RxEarly interrupt, do nothing. */ | |
1680 | if (status & IPG_IS_RX_EARLY) | |
c9ea53d0 | 1681 | IPG_DEBUG_MSG("RxEarly interrupt\n"); |
1202d6ff FR |
1682 | |
1683 | out_enable: | |
1684 | /* Re-enable IPG interrupts. */ | |
1685 | ipg_w16(IPG_IE_TX_DMA_COMPLETE | IPG_IE_RX_DMA_COMPLETE | | |
1686 | IPG_IE_HOST_ERROR | IPG_IE_INT_REQUESTED | IPG_IE_TX_COMPLETE | | |
1687 | IPG_IE_LINK_EVENT | IPG_IE_UPDATE_STATS, INT_ENABLE); | |
227bc24d | 1688 | out_unlock: |
1202d6ff | 1689 | spin_unlock(&sp->lock); |
227bc24d | 1690 | |
1202d6ff FR |
1691 | return IRQ_RETVAL(handled); |
1692 | } | |
1693 | ||
1694 | static void ipg_rx_clear(struct ipg_nic_private *sp) | |
1695 | { | |
1696 | unsigned int i; | |
1697 | ||
1698 | for (i = 0; i < IPG_RFDLIST_LENGTH; i++) { | |
9893ba16 | 1699 | if (sp->rx_buff[i]) { |
1202d6ff FR |
1700 | struct ipg_rx *rxfd = sp->rxd + i; |
1701 | ||
9893ba16 PE |
1702 | dev_kfree_skb_irq(sp->rx_buff[i]); |
1703 | sp->rx_buff[i] = NULL; | |
1202d6ff | 1704 | pci_unmap_single(sp->pdev, |
325a8071 | 1705 | le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, |
1202d6ff FR |
1706 | sp->rx_buf_sz, PCI_DMA_FROMDEVICE); |
1707 | } | |
1708 | } | |
1709 | } | |
1710 | ||
1711 | static void ipg_tx_clear(struct ipg_nic_private *sp) | |
1712 | { | |
1713 | unsigned int i; | |
1714 | ||
1715 | for (i = 0; i < IPG_TFDLIST_LENGTH; i++) { | |
9893ba16 | 1716 | if (sp->tx_buff[i]) { |
1202d6ff FR |
1717 | struct ipg_tx *txfd = sp->txd + i; |
1718 | ||
1719 | pci_unmap_single(sp->pdev, | |
325a8071 | 1720 | le64_to_cpu(txfd->frag_info) & ~IPG_TFI_FRAGLEN, |
9893ba16 | 1721 | sp->tx_buff[i]->len, PCI_DMA_TODEVICE); |
1202d6ff | 1722 | |
9893ba16 | 1723 | dev_kfree_skb_irq(sp->tx_buff[i]); |
1202d6ff | 1724 | |
9893ba16 | 1725 | sp->tx_buff[i] = NULL; |
1202d6ff FR |
1726 | } |
1727 | } | |
1728 | } | |
1729 | ||
1730 | static int ipg_nic_open(struct net_device *dev) | |
1731 | { | |
1732 | struct ipg_nic_private *sp = netdev_priv(dev); | |
1733 | void __iomem *ioaddr = sp->ioaddr; | |
1734 | struct pci_dev *pdev = sp->pdev; | |
1735 | int rc; | |
1736 | ||
1737 | IPG_DEBUG_MSG("_nic_open\n"); | |
1738 | ||
39f20585 | 1739 | sp->rx_buf_sz = sp->rxsupport_size; |
1202d6ff FR |
1740 | |
1741 | /* Check for interrupt line conflicts, and request interrupt | |
1742 | * line for IPG. | |
1743 | * | |
1744 | * IMPORTANT: Disable IPG interrupts prior to registering | |
1745 | * IRQ. | |
1746 | */ | |
1747 | ipg_w16(0x0000, INT_ENABLE); | |
1748 | ||
1749 | /* Register the interrupt line to be used by the IPG within | |
1750 | * the Linux system. | |
1751 | */ | |
90145c9c | 1752 | rc = request_irq(pdev->irq, ipg_interrupt_handler, IRQF_SHARED, |
1202d6ff FR |
1753 | dev->name, dev); |
1754 | if (rc < 0) { | |
c9ea53d0 | 1755 | netdev_info(dev, "Error when requesting interrupt\n"); |
1202d6ff FR |
1756 | goto out; |
1757 | } | |
1758 | ||
1759 | dev->irq = pdev->irq; | |
1760 | ||
1761 | rc = -ENOMEM; | |
1762 | ||
1763 | sp->rxd = dma_alloc_coherent(&pdev->dev, IPG_RX_RING_BYTES, | |
1764 | &sp->rxd_map, GFP_KERNEL); | |
1765 | if (!sp->rxd) | |
1766 | goto err_free_irq_0; | |
1767 | ||
1768 | sp->txd = dma_alloc_coherent(&pdev->dev, IPG_TX_RING_BYTES, | |
1769 | &sp->txd_map, GFP_KERNEL); | |
1770 | if (!sp->txd) | |
1771 | goto err_free_rx_1; | |
1772 | ||
1773 | rc = init_rfdlist(dev); | |
1774 | if (rc < 0) { | |
c9ea53d0 | 1775 | netdev_info(dev, "Error during configuration\n"); |
1202d6ff FR |
1776 | goto err_free_tx_2; |
1777 | } | |
1778 | ||
1779 | init_tfdlist(dev); | |
1780 | ||
1781 | rc = ipg_io_config(dev); | |
1782 | if (rc < 0) { | |
c9ea53d0 | 1783 | netdev_info(dev, "Error during configuration\n"); |
1202d6ff FR |
1784 | goto err_release_tfdlist_3; |
1785 | } | |
1786 | ||
1787 | /* Resolve autonegotiation. */ | |
1788 | if (ipg_config_autoneg(dev) < 0) | |
c9ea53d0 | 1789 | netdev_info(dev, "Auto-negotiation error\n"); |
1202d6ff | 1790 | |
1202d6ff | 1791 | /* initialize JUMBO Frame control variable */ |
9893ba16 PE |
1792 | sp->jumbo.found_start = 0; |
1793 | sp->jumbo.current_size = 0; | |
e8399fed | 1794 | sp->jumbo.skb = NULL; |
83042955 | 1795 | |
1202d6ff FR |
1796 | /* Enable transmit and receive operation of the IPG. */ |
1797 | ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_RX_ENABLE | IPG_MC_TX_ENABLE) & | |
1798 | IPG_MC_RSVD_MASK, MAC_CTRL); | |
1799 | ||
1800 | netif_start_queue(dev); | |
1801 | out: | |
1802 | return rc; | |
1803 | ||
1804 | err_release_tfdlist_3: | |
1805 | ipg_tx_clear(sp); | |
1806 | ipg_rx_clear(sp); | |
1807 | err_free_tx_2: | |
1808 | dma_free_coherent(&pdev->dev, IPG_TX_RING_BYTES, sp->txd, sp->txd_map); | |
1809 | err_free_rx_1: | |
1810 | dma_free_coherent(&pdev->dev, IPG_RX_RING_BYTES, sp->rxd, sp->rxd_map); | |
1811 | err_free_irq_0: | |
1812 | free_irq(pdev->irq, dev); | |
1813 | goto out; | |
1814 | } | |
1815 | ||
1816 | static int ipg_nic_stop(struct net_device *dev) | |
1817 | { | |
1818 | struct ipg_nic_private *sp = netdev_priv(dev); | |
1819 | void __iomem *ioaddr = sp->ioaddr; | |
1820 | struct pci_dev *pdev = sp->pdev; | |
1821 | ||
1822 | IPG_DEBUG_MSG("_nic_stop\n"); | |
1823 | ||
1824 | netif_stop_queue(dev); | |
1825 | ||
1202d6ff FR |
1826 | IPG_DUMPTFDLIST(dev); |
1827 | ||
1828 | do { | |
1829 | (void) ipg_r16(INT_STATUS_ACK); | |
1830 | ||
1831 | ipg_reset(dev, IPG_AC_GLOBAL_RESET | IPG_AC_HOST | IPG_AC_DMA); | |
1832 | ||
1833 | synchronize_irq(pdev->irq); | |
1834 | } while (ipg_r16(INT_ENABLE) & IPG_IE_RSVD_MASK); | |
1835 | ||
1836 | ipg_rx_clear(sp); | |
1837 | ||
1838 | ipg_tx_clear(sp); | |
1839 | ||
1840 | pci_free_consistent(pdev, IPG_RX_RING_BYTES, sp->rxd, sp->rxd_map); | |
1841 | pci_free_consistent(pdev, IPG_TX_RING_BYTES, sp->txd, sp->txd_map); | |
1842 | ||
1843 | free_irq(pdev->irq, dev); | |
1844 | ||
1845 | return 0; | |
1846 | } | |
1847 | ||
61357325 SH |
1848 | static netdev_tx_t ipg_nic_hard_start_xmit(struct sk_buff *skb, |
1849 | struct net_device *dev) | |
1202d6ff FR |
1850 | { |
1851 | struct ipg_nic_private *sp = netdev_priv(dev); | |
1852 | void __iomem *ioaddr = sp->ioaddr; | |
1853 | unsigned int entry = sp->tx_current % IPG_TFDLIST_LENGTH; | |
1854 | unsigned long flags; | |
1855 | struct ipg_tx *txfd; | |
1856 | ||
1857 | IPG_DDEBUG_MSG("_nic_hard_start_xmit\n"); | |
1858 | ||
1859 | /* If in 10Mbps mode, stop the transmit queue so | |
1860 | * no more transmit frames are accepted. | |
1861 | */ | |
1862 | if (sp->tenmbpsmode) | |
1863 | netif_stop_queue(dev); | |
1864 | ||
9893ba16 PE |
1865 | if (sp->reset_current_tfd) { |
1866 | sp->reset_current_tfd = 0; | |
1202d6ff FR |
1867 | entry = 0; |
1868 | } | |
1869 | ||
1870 | txfd = sp->txd + entry; | |
1871 | ||
9893ba16 | 1872 | sp->tx_buff[entry] = skb; |
1202d6ff FR |
1873 | |
1874 | /* Clear all TFC fields, except TFDDONE. */ | |
1875 | txfd->tfc = cpu_to_le64(IPG_TFC_TFDDONE); | |
1876 | ||
1877 | /* Specify the TFC field within the TFD. */ | |
1878 | txfd->tfc |= cpu_to_le64(IPG_TFC_WORDALIGNDISABLED | | |
48f5fec5 | 1879 | (IPG_TFC_FRAMEID & sp->tx_current) | |
1202d6ff | 1880 | (IPG_TFC_FRAGCOUNT & (1 << 24))); |
48f5fec5 AV |
1881 | /* |
1882 | * 16--17 (WordAlign) <- 3 (disable), | |
1883 | * 0--15 (FrameId) <- sp->tx_current, | |
1884 | * 24--27 (FragCount) <- 1 | |
1885 | */ | |
1202d6ff FR |
1886 | |
1887 | /* Request TxComplete interrupts at an interval defined | |
1888 | * by the constant IPG_FRAMESBETWEENTXCOMPLETES. | |
1889 | * Request TxComplete interrupt for every frame | |
25985edc | 1890 | * if in 10Mbps mode to accommodate problem with 10Mbps |
1202d6ff FR |
1891 | * processing. |
1892 | */ | |
1893 | if (sp->tenmbpsmode) | |
1894 | txfd->tfc |= cpu_to_le64(IPG_TFC_TXINDICATE); | |
47cccd7d | 1895 | txfd->tfc |= cpu_to_le64(IPG_TFC_TXDMAINDICATE); |
1202d6ff FR |
1896 | /* Based on compilation option, determine if FCS is to be |
1897 | * appended to transmit frame by IPG. | |
1898 | */ | |
1899 | if (!(IPG_APPEND_FCS_ON_TX)) | |
1900 | txfd->tfc |= cpu_to_le64(IPG_TFC_FCSAPPENDDISABLE); | |
1901 | ||
1902 | /* Based on compilation option, determine if IP, TCP and/or | |
1903 | * UDP checksums are to be added to transmit frame by IPG. | |
1904 | */ | |
1905 | if (IPG_ADD_IPCHECKSUM_ON_TX) | |
1906 | txfd->tfc |= cpu_to_le64(IPG_TFC_IPCHECKSUMENABLE); | |
1907 | ||
1908 | if (IPG_ADD_TCPCHECKSUM_ON_TX) | |
1909 | txfd->tfc |= cpu_to_le64(IPG_TFC_TCPCHECKSUMENABLE); | |
1910 | ||
1911 | if (IPG_ADD_UDPCHECKSUM_ON_TX) | |
1912 | txfd->tfc |= cpu_to_le64(IPG_TFC_UDPCHECKSUMENABLE); | |
1913 | ||
1914 | /* Based on compilation option, determine if VLAN tag info is to be | |
1915 | * inserted into transmit frame by IPG. | |
1916 | */ | |
1917 | if (IPG_INSERT_MANUAL_VLAN_TAG) { | |
1918 | txfd->tfc |= cpu_to_le64(IPG_TFC_VLANTAGINSERT | | |
1919 | ((u64) IPG_MANUAL_VLAN_VID << 32) | | |
1920 | ((u64) IPG_MANUAL_VLAN_CFI << 44) | | |
1921 | ((u64) IPG_MANUAL_VLAN_USERPRIORITY << 45)); | |
1922 | } | |
1923 | ||
1924 | /* The fragment start location within system memory is defined | |
1925 | * by the sk_buff structure's data field. The physical address | |
1926 | * of this location within the system's virtual memory space | |
1927 | * is determined using the IPG_HOST2BUS_MAP function. | |
1928 | */ | |
1929 | txfd->frag_info = cpu_to_le64(pci_map_single(sp->pdev, skb->data, | |
1930 | skb->len, PCI_DMA_TODEVICE)); | |
1931 | ||
1932 | /* The length of the fragment within system memory is defined by | |
1933 | * the sk_buff structure's len field. | |
1934 | */ | |
1935 | txfd->frag_info |= cpu_to_le64(IPG_TFI_FRAGLEN & | |
1936 | ((u64) (skb->len & 0xffff) << 48)); | |
1937 | ||
1938 | /* Clear the TFDDone bit last to indicate the TFD is ready | |
1939 | * for transfer to the IPG. | |
1940 | */ | |
1941 | txfd->tfc &= cpu_to_le64(~IPG_TFC_TFDDONE); | |
1942 | ||
1943 | spin_lock_irqsave(&sp->lock, flags); | |
1944 | ||
1945 | sp->tx_current++; | |
1946 | ||
1947 | mmiowb(); | |
1948 | ||
1949 | ipg_w32(IPG_DC_TX_DMA_POLL_NOW, DMA_CTRL); | |
1950 | ||
1951 | if (sp->tx_current == (sp->tx_dirty + IPG_TFDLIST_LENGTH)) | |
dafdec74 | 1952 | netif_stop_queue(dev); |
1202d6ff FR |
1953 | |
1954 | spin_unlock_irqrestore(&sp->lock, flags); | |
1955 | ||
1956 | return NETDEV_TX_OK; | |
1957 | } | |
1958 | ||
1959 | static void ipg_set_phy_default_param(unsigned char rev, | |
1960 | struct net_device *dev, int phy_address) | |
1961 | { | |
1962 | unsigned short length; | |
1963 | unsigned char revision; | |
fc502ba0 | 1964 | const unsigned short *phy_param; |
1202d6ff FR |
1965 | unsigned short address, value; |
1966 | ||
1967 | phy_param = &DefaultPhyParam[0]; | |
1968 | length = *phy_param & 0x00FF; | |
1969 | revision = (unsigned char)((*phy_param) >> 8); | |
1970 | phy_param++; | |
1971 | while (length != 0) { | |
1972 | if (rev == revision) { | |
1973 | while (length > 1) { | |
1974 | address = *phy_param; | |
1975 | value = *(phy_param + 1); | |
1976 | phy_param += 2; | |
1977 | mdio_write(dev, phy_address, address, value); | |
1978 | length -= 4; | |
1979 | } | |
1980 | break; | |
1981 | } else { | |
1982 | phy_param += length / 2; | |
1983 | length = *phy_param & 0x00FF; | |
1984 | revision = (unsigned char)((*phy_param) >> 8); | |
1985 | phy_param++; | |
1986 | } | |
1987 | } | |
1988 | } | |
1989 | ||
1202d6ff FR |
1990 | static int read_eeprom(struct net_device *dev, int eep_addr) |
1991 | { | |
1992 | void __iomem *ioaddr = ipg_ioaddr(dev); | |
1993 | unsigned int i; | |
1994 | int ret = 0; | |
1995 | u16 value; | |
1996 | ||
1997 | value = IPG_EC_EEPROM_READOPCODE | (eep_addr & 0xff); | |
1998 | ipg_w16(value, EEPROM_CTRL); | |
1999 | ||
2000 | for (i = 0; i < 1000; i++) { | |
2001 | u16 data; | |
2002 | ||
2003 | mdelay(10); | |
2004 | data = ipg_r16(EEPROM_CTRL); | |
2005 | if (!(data & IPG_EC_EEPROM_BUSY)) { | |
2006 | ret = ipg_r16(EEPROM_DATA); | |
2007 | break; | |
2008 | } | |
2009 | } | |
2010 | return ret; | |
2011 | } | |
2012 | ||
2013 | static void ipg_init_mii(struct net_device *dev) | |
2014 | { | |
2015 | struct ipg_nic_private *sp = netdev_priv(dev); | |
2016 | struct mii_if_info *mii_if = &sp->mii_if; | |
2017 | int phyaddr; | |
2018 | ||
2019 | mii_if->dev = dev; | |
2020 | mii_if->mdio_read = mdio_read; | |
2021 | mii_if->mdio_write = mdio_write; | |
2022 | mii_if->phy_id_mask = 0x1f; | |
2023 | mii_if->reg_num_mask = 0x1f; | |
2024 | ||
2025 | mii_if->phy_id = phyaddr = ipg_find_phyaddr(dev); | |
2026 | ||
2027 | if (phyaddr != 0x1f) { | |
2028 | u16 mii_phyctrl, mii_1000cr; | |
1202d6ff FR |
2029 | |
2030 | mii_1000cr = mdio_read(dev, phyaddr, MII_CTRL1000); | |
2031 | mii_1000cr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF | | |
2032 | GMII_PHY_1000BASETCONTROL_PreferMaster; | |
2033 | mdio_write(dev, phyaddr, MII_CTRL1000, mii_1000cr); | |
2034 | ||
2035 | mii_phyctrl = mdio_read(dev, phyaddr, MII_BMCR); | |
2036 | ||
2037 | /* Set default phyparam */ | |
ff938e43 | 2038 | ipg_set_phy_default_param(sp->pdev->revision, dev, phyaddr); |
1202d6ff FR |
2039 | |
2040 | /* Reset PHY */ | |
2041 | mii_phyctrl |= BMCR_RESET | BMCR_ANRESTART; | |
2042 | mdio_write(dev, phyaddr, MII_BMCR, mii_phyctrl); | |
2043 | ||
2044 | } | |
2045 | } | |
2046 | ||
2047 | static int ipg_hw_init(struct net_device *dev) | |
2048 | { | |
2049 | struct ipg_nic_private *sp = netdev_priv(dev); | |
2050 | void __iomem *ioaddr = sp->ioaddr; | |
2051 | unsigned int i; | |
2052 | int rc; | |
2053 | ||
dea4a87c | 2054 | /* Read/Write and Reset EEPROM Value */ |
1202d6ff | 2055 | /* Read LED Mode Configuration from EEPROM */ |
9893ba16 | 2056 | sp->led_mode = read_eeprom(dev, 6); |
1202d6ff FR |
2057 | |
2058 | /* Reset all functions within the IPG. Do not assert | |
2059 | * RST_OUT as not compatible with some PHYs. | |
2060 | */ | |
2061 | rc = ipg_reset(dev, IPG_RESET_MASK); | |
2062 | if (rc < 0) | |
2063 | goto out; | |
2064 | ||
2065 | ipg_init_mii(dev); | |
2066 | ||
2067 | /* Read MAC Address from EEPROM */ | |
2068 | for (i = 0; i < 3; i++) | |
2069 | sp->station_addr[i] = read_eeprom(dev, 16 + i); | |
2070 | ||
2071 | for (i = 0; i < 3; i++) | |
2072 | ipg_w16(sp->station_addr[i], STATION_ADDRESS_0 + 2*i); | |
2073 | ||
2074 | /* Set station address in ethernet_device structure. */ | |
2075 | dev->dev_addr[0] = ipg_r16(STATION_ADDRESS_0) & 0x00ff; | |
2076 | dev->dev_addr[1] = (ipg_r16(STATION_ADDRESS_0) & 0xff00) >> 8; | |
2077 | dev->dev_addr[2] = ipg_r16(STATION_ADDRESS_1) & 0x00ff; | |
2078 | dev->dev_addr[3] = (ipg_r16(STATION_ADDRESS_1) & 0xff00) >> 8; | |
2079 | dev->dev_addr[4] = ipg_r16(STATION_ADDRESS_2) & 0x00ff; | |
2080 | dev->dev_addr[5] = (ipg_r16(STATION_ADDRESS_2) & 0xff00) >> 8; | |
2081 | out: | |
2082 | return rc; | |
2083 | } | |
2084 | ||
2085 | static int ipg_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
2086 | { | |
2087 | struct ipg_nic_private *sp = netdev_priv(dev); | |
2088 | int rc; | |
2089 | ||
2090 | mutex_lock(&sp->mii_mutex); | |
2091 | rc = generic_mii_ioctl(&sp->mii_if, if_mii(ifr), cmd, NULL); | |
2092 | mutex_unlock(&sp->mii_mutex); | |
2093 | ||
2094 | return rc; | |
2095 | } | |
2096 | ||
2097 | static int ipg_nic_change_mtu(struct net_device *dev, int new_mtu) | |
2098 | { | |
da02b231 | 2099 | struct ipg_nic_private *sp = netdev_priv(dev); |
532f4aee | 2100 | int err; |
da02b231 | 2101 | |
25985edc | 2102 | /* Function to accommodate changes to Maximum Transfer Unit |
1202d6ff FR |
2103 | * (or MTU) of IPG NIC. Cannot use default function since |
2104 | * the default will not allow for MTU > 1500 bytes. | |
2105 | */ | |
2106 | ||
2107 | IPG_DEBUG_MSG("_nic_change_mtu\n"); | |
2108 | ||
532f4aee PE |
2109 | /* |
2110 | * Check that the new MTU value is between 68 (14 byte header, 46 byte | |
2111 | * payload, 4 byte FCS) and 10 KB, which is the largest supported MTU. | |
1202d6ff | 2112 | */ |
532f4aee | 2113 | if (new_mtu < 68 || new_mtu > 10240) |
1202d6ff FR |
2114 | return -EINVAL; |
2115 | ||
532f4aee PE |
2116 | err = ipg_nic_stop(dev); |
2117 | if (err) | |
2118 | return err; | |
2119 | ||
1202d6ff FR |
2120 | dev->mtu = new_mtu; |
2121 | ||
532f4aee PE |
2122 | sp->max_rxframe_size = new_mtu; |
2123 | ||
2124 | sp->rxfrag_size = new_mtu; | |
2125 | if (sp->rxfrag_size > 4088) | |
2126 | sp->rxfrag_size = 4088; | |
2127 | ||
2128 | sp->rxsupport_size = sp->max_rxframe_size; | |
2129 | ||
2130 | if (new_mtu > 0x0600) | |
2131 | sp->is_jumbo = true; | |
2132 | else | |
2133 | sp->is_jumbo = false; | |
2134 | ||
2135 | return ipg_nic_open(dev); | |
1202d6ff FR |
2136 | } |
2137 | ||
2138 | static int ipg_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
2139 | { | |
2140 | struct ipg_nic_private *sp = netdev_priv(dev); | |
2141 | int rc; | |
2142 | ||
2143 | mutex_lock(&sp->mii_mutex); | |
2144 | rc = mii_ethtool_gset(&sp->mii_if, cmd); | |
2145 | mutex_unlock(&sp->mii_mutex); | |
2146 | ||
2147 | return rc; | |
2148 | } | |
2149 | ||
2150 | static int ipg_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
2151 | { | |
2152 | struct ipg_nic_private *sp = netdev_priv(dev); | |
2153 | int rc; | |
2154 | ||
2155 | mutex_lock(&sp->mii_mutex); | |
2156 | rc = mii_ethtool_sset(&sp->mii_if, cmd); | |
2157 | mutex_unlock(&sp->mii_mutex); | |
2158 | ||
2159 | return rc; | |
2160 | } | |
2161 | ||
2162 | static int ipg_nway_reset(struct net_device *dev) | |
2163 | { | |
2164 | struct ipg_nic_private *sp = netdev_priv(dev); | |
2165 | int rc; | |
2166 | ||
2167 | mutex_lock(&sp->mii_mutex); | |
2168 | rc = mii_nway_restart(&sp->mii_if); | |
2169 | mutex_unlock(&sp->mii_mutex); | |
2170 | ||
2171 | return rc; | |
2172 | } | |
2173 | ||
0fc0b732 | 2174 | static const struct ethtool_ops ipg_ethtool_ops = { |
1202d6ff FR |
2175 | .get_settings = ipg_get_settings, |
2176 | .set_settings = ipg_set_settings, | |
2177 | .nway_reset = ipg_nway_reset, | |
2178 | }; | |
2179 | ||
ef312246 | 2180 | static void __devexit ipg_remove(struct pci_dev *pdev) |
1202d6ff FR |
2181 | { |
2182 | struct net_device *dev = pci_get_drvdata(pdev); | |
2183 | struct ipg_nic_private *sp = netdev_priv(dev); | |
2184 | ||
2185 | IPG_DEBUG_MSG("_remove\n"); | |
2186 | ||
2187 | /* Un-register Ethernet device. */ | |
2188 | unregister_netdev(dev); | |
2189 | ||
2190 | pci_iounmap(pdev, sp->ioaddr); | |
2191 | ||
2192 | pci_release_regions(pdev); | |
2193 | ||
2194 | free_netdev(dev); | |
2195 | pci_disable_device(pdev); | |
2196 | pci_set_drvdata(pdev, NULL); | |
2197 | } | |
2198 | ||
04fb5f73 SH |
2199 | static const struct net_device_ops ipg_netdev_ops = { |
2200 | .ndo_open = ipg_nic_open, | |
2201 | .ndo_stop = ipg_nic_stop, | |
2202 | .ndo_start_xmit = ipg_nic_hard_start_xmit, | |
2203 | .ndo_get_stats = ipg_nic_get_stats, | |
2204 | .ndo_set_multicast_list = ipg_nic_set_multicast_list, | |
2205 | .ndo_do_ioctl = ipg_ioctl, | |
2206 | .ndo_tx_timeout = ipg_tx_timeout, | |
2207 | .ndo_change_mtu = ipg_nic_change_mtu, | |
2208 | .ndo_set_mac_address = eth_mac_addr, | |
2209 | .ndo_validate_addr = eth_validate_addr, | |
2210 | }; | |
2211 | ||
1202d6ff FR |
2212 | static int __devinit ipg_probe(struct pci_dev *pdev, |
2213 | const struct pci_device_id *id) | |
2214 | { | |
2215 | unsigned int i = id->driver_data; | |
2216 | struct ipg_nic_private *sp; | |
2217 | struct net_device *dev; | |
2218 | void __iomem *ioaddr; | |
2219 | int rc; | |
2220 | ||
2221 | rc = pci_enable_device(pdev); | |
2222 | if (rc < 0) | |
2223 | goto out; | |
2224 | ||
c9ea53d0 | 2225 | pr_info("%s: %s\n", pci_name(pdev), ipg_brand_name[i]); |
1202d6ff FR |
2226 | |
2227 | pci_set_master(pdev); | |
2228 | ||
50cf156a | 2229 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(40)); |
1202d6ff | 2230 | if (rc < 0) { |
284901a9 | 2231 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
1202d6ff | 2232 | if (rc < 0) { |
c9ea53d0 | 2233 | pr_err("%s: DMA config failed\n", pci_name(pdev)); |
1202d6ff FR |
2234 | goto err_disable_0; |
2235 | } | |
2236 | } | |
2237 | ||
2238 | /* | |
2239 | * Initialize net device. | |
2240 | */ | |
2241 | dev = alloc_etherdev(sizeof(struct ipg_nic_private)); | |
2242 | if (!dev) { | |
c9ea53d0 | 2243 | pr_err("%s: alloc_etherdev failed\n", pci_name(pdev)); |
1202d6ff FR |
2244 | rc = -ENOMEM; |
2245 | goto err_disable_0; | |
2246 | } | |
2247 | ||
2248 | sp = netdev_priv(dev); | |
2249 | spin_lock_init(&sp->lock); | |
2250 | mutex_init(&sp->mii_mutex); | |
2251 | ||
532f4aee | 2252 | sp->is_jumbo = IPG_IS_JUMBO; |
18a9cdb9 | 2253 | sp->rxfrag_size = IPG_RXFRAG_SIZE; |
39f20585 | 2254 | sp->rxsupport_size = IPG_RXSUPPORT_SIZE; |
da02b231 | 2255 | sp->max_rxframe_size = IPG_MAX_RXFRAME_SIZE; |
024f4d88 | 2256 | |
1202d6ff FR |
2257 | /* Declare IPG NIC functions for Ethernet device methods. |
2258 | */ | |
04fb5f73 | 2259 | dev->netdev_ops = &ipg_netdev_ops; |
1202d6ff FR |
2260 | SET_NETDEV_DEV(dev, &pdev->dev); |
2261 | SET_ETHTOOL_OPS(dev, &ipg_ethtool_ops); | |
2262 | ||
2263 | rc = pci_request_regions(pdev, DRV_NAME); | |
2264 | if (rc) | |
2265 | goto err_free_dev_1; | |
2266 | ||
2267 | ioaddr = pci_iomap(pdev, 1, pci_resource_len(pdev, 1)); | |
2268 | if (!ioaddr) { | |
c9ea53d0 | 2269 | pr_err("%s: cannot map MMIO\n", pci_name(pdev)); |
1202d6ff FR |
2270 | rc = -EIO; |
2271 | goto err_release_regions_2; | |
2272 | } | |
2273 | ||
2274 | /* Save the pointer to the PCI device information. */ | |
2275 | sp->ioaddr = ioaddr; | |
2276 | sp->pdev = pdev; | |
2277 | sp->dev = dev; | |
2278 | ||
2279 | INIT_DELAYED_WORK(&sp->task, ipg_reset_after_host_error); | |
2280 | ||
2281 | pci_set_drvdata(pdev, dev); | |
2282 | ||
2283 | rc = ipg_hw_init(dev); | |
2284 | if (rc < 0) | |
2285 | goto err_unmap_3; | |
2286 | ||
2287 | rc = register_netdev(dev); | |
2288 | if (rc < 0) | |
2289 | goto err_unmap_3; | |
2290 | ||
c9ea53d0 | 2291 | netdev_info(dev, "Ethernet device registered\n"); |
1202d6ff FR |
2292 | out: |
2293 | return rc; | |
2294 | ||
2295 | err_unmap_3: | |
2296 | pci_iounmap(pdev, ioaddr); | |
2297 | err_release_regions_2: | |
2298 | pci_release_regions(pdev); | |
2299 | err_free_dev_1: | |
2300 | free_netdev(dev); | |
2301 | err_disable_0: | |
2302 | pci_disable_device(pdev); | |
2303 | goto out; | |
2304 | } | |
2305 | ||
2306 | static struct pci_driver ipg_pci_driver = { | |
2307 | .name = IPG_DRIVER_NAME, | |
2308 | .id_table = ipg_pci_tbl, | |
2309 | .probe = ipg_probe, | |
2310 | .remove = __devexit_p(ipg_remove), | |
2311 | }; | |
2312 | ||
2313 | static int __init ipg_init_module(void) | |
2314 | { | |
2315 | return pci_register_driver(&ipg_pci_driver); | |
2316 | } | |
2317 | ||
2318 | static void __exit ipg_exit_module(void) | |
2319 | { | |
2320 | pci_unregister_driver(&ipg_pci_driver); | |
2321 | } | |
2322 | ||
2323 | module_init(ipg_init_module); | |
2324 | module_exit(ipg_exit_module); |