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1 | /* | |
2 | * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver | |
3 | * | |
4 | * Copyright 2008 JMicron Technology Corporation | |
5 | * http://www.jmicron.com/ | |
6 | * | |
7 | * Author: Guo-Fu Tseng <cooldavid@cooldavid.org> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/version.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/kernel.h> | |
27 | #include <linux/pci.h> | |
28 | #include <linux/netdevice.h> | |
29 | #include <linux/etherdevice.h> | |
30 | #include <linux/ethtool.h> | |
31 | #include <linux/mii.h> | |
32 | #include <linux/crc32.h> | |
33 | #include <linux/delay.h> | |
34 | #include <linux/spinlock.h> | |
35 | #include <linux/in.h> | |
36 | #include <linux/ip.h> | |
37 | #include <linux/ipv6.h> | |
38 | #include <linux/tcp.h> | |
39 | #include <linux/udp.h> | |
40 | #include <linux/if_vlan.h> | |
41 | #include <linux/slab.h> | |
42 | #include <net/ip6_checksum.h> | |
43 | #include "jme.h" | |
44 | ||
45 | static int force_pseudohp = -1; | |
46 | static int no_pseudohp = -1; | |
47 | static int no_extplug = -1; | |
48 | module_param(force_pseudohp, int, 0); | |
49 | MODULE_PARM_DESC(force_pseudohp, | |
50 | "Enable pseudo hot-plug feature manually by driver instead of BIOS."); | |
51 | module_param(no_pseudohp, int, 0); | |
52 | MODULE_PARM_DESC(no_pseudohp, "Disable pseudo hot-plug feature."); | |
53 | module_param(no_extplug, int, 0); | |
54 | MODULE_PARM_DESC(no_extplug, | |
55 | "Do not use external plug signal for pseudo hot-plug."); | |
56 | ||
57 | static int | |
58 | jme_mdio_read(struct net_device *netdev, int phy, int reg) | |
59 | { | |
60 | struct jme_adapter *jme = netdev_priv(netdev); | |
61 | int i, val, again = (reg == MII_BMSR) ? 1 : 0; | |
62 | ||
63 | read_again: | |
64 | jwrite32(jme, JME_SMI, SMI_OP_REQ | | |
65 | smi_phy_addr(phy) | | |
66 | smi_reg_addr(reg)); | |
67 | ||
68 | wmb(); | |
69 | for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { | |
70 | udelay(20); | |
71 | val = jread32(jme, JME_SMI); | |
72 | if ((val & SMI_OP_REQ) == 0) | |
73 | break; | |
74 | } | |
75 | ||
76 | if (i == 0) { | |
77 | jeprintk(jme->pdev, "phy(%d) read timeout : %d\n", phy, reg); | |
78 | return 0; | |
79 | } | |
80 | ||
81 | if (again--) | |
82 | goto read_again; | |
83 | ||
84 | return (val & SMI_DATA_MASK) >> SMI_DATA_SHIFT; | |
85 | } | |
86 | ||
87 | static void | |
88 | jme_mdio_write(struct net_device *netdev, | |
89 | int phy, int reg, int val) | |
90 | { | |
91 | struct jme_adapter *jme = netdev_priv(netdev); | |
92 | int i; | |
93 | ||
94 | jwrite32(jme, JME_SMI, SMI_OP_WRITE | SMI_OP_REQ | | |
95 | ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) | | |
96 | smi_phy_addr(phy) | smi_reg_addr(reg)); | |
97 | ||
98 | wmb(); | |
99 | for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { | |
100 | udelay(20); | |
101 | if ((jread32(jme, JME_SMI) & SMI_OP_REQ) == 0) | |
102 | break; | |
103 | } | |
104 | ||
105 | if (i == 0) | |
106 | jeprintk(jme->pdev, "phy(%d) write timeout : %d\n", phy, reg); | |
107 | } | |
108 | ||
109 | static inline void | |
110 | jme_reset_phy_processor(struct jme_adapter *jme) | |
111 | { | |
112 | u32 val; | |
113 | ||
114 | jme_mdio_write(jme->dev, | |
115 | jme->mii_if.phy_id, | |
116 | MII_ADVERTISE, ADVERTISE_ALL | | |
117 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
118 | ||
119 | if (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) | |
120 | jme_mdio_write(jme->dev, | |
121 | jme->mii_if.phy_id, | |
122 | MII_CTRL1000, | |
123 | ADVERTISE_1000FULL | ADVERTISE_1000HALF); | |
124 | ||
125 | val = jme_mdio_read(jme->dev, | |
126 | jme->mii_if.phy_id, | |
127 | MII_BMCR); | |
128 | ||
129 | jme_mdio_write(jme->dev, | |
130 | jme->mii_if.phy_id, | |
131 | MII_BMCR, val | BMCR_RESET); | |
132 | } | |
133 | ||
134 | static void | |
135 | jme_setup_wakeup_frame(struct jme_adapter *jme, | |
136 | u32 *mask, u32 crc, int fnr) | |
137 | { | |
138 | int i; | |
139 | ||
140 | /* | |
141 | * Setup CRC pattern | |
142 | */ | |
143 | jwrite32(jme, JME_WFOI, WFOI_CRC_SEL | (fnr & WFOI_FRAME_SEL)); | |
144 | wmb(); | |
145 | jwrite32(jme, JME_WFODP, crc); | |
146 | wmb(); | |
147 | ||
148 | /* | |
149 | * Setup Mask | |
150 | */ | |
151 | for (i = 0 ; i < WAKEUP_FRAME_MASK_DWNR ; ++i) { | |
152 | jwrite32(jme, JME_WFOI, | |
153 | ((i << WFOI_MASK_SHIFT) & WFOI_MASK_SEL) | | |
154 | (fnr & WFOI_FRAME_SEL)); | |
155 | wmb(); | |
156 | jwrite32(jme, JME_WFODP, mask[i]); | |
157 | wmb(); | |
158 | } | |
159 | } | |
160 | ||
161 | static inline void | |
162 | jme_reset_mac_processor(struct jme_adapter *jme) | |
163 | { | |
164 | u32 mask[WAKEUP_FRAME_MASK_DWNR] = {0, 0, 0, 0}; | |
165 | u32 crc = 0xCDCDCDCD; | |
166 | u32 gpreg0; | |
167 | int i; | |
168 | ||
169 | jwrite32(jme, JME_GHC, jme->reg_ghc | GHC_SWRST); | |
170 | udelay(2); | |
171 | jwrite32(jme, JME_GHC, jme->reg_ghc); | |
172 | ||
173 | jwrite32(jme, JME_RXDBA_LO, 0x00000000); | |
174 | jwrite32(jme, JME_RXDBA_HI, 0x00000000); | |
175 | jwrite32(jme, JME_RXQDC, 0x00000000); | |
176 | jwrite32(jme, JME_RXNDA, 0x00000000); | |
177 | jwrite32(jme, JME_TXDBA_LO, 0x00000000); | |
178 | jwrite32(jme, JME_TXDBA_HI, 0x00000000); | |
179 | jwrite32(jme, JME_TXQDC, 0x00000000); | |
180 | jwrite32(jme, JME_TXNDA, 0x00000000); | |
181 | ||
182 | jwrite32(jme, JME_RXMCHT_LO, 0x00000000); | |
183 | jwrite32(jme, JME_RXMCHT_HI, 0x00000000); | |
184 | for (i = 0 ; i < WAKEUP_FRAME_NR ; ++i) | |
185 | jme_setup_wakeup_frame(jme, mask, crc, i); | |
186 | if (jme->fpgaver) | |
187 | gpreg0 = GPREG0_DEFAULT | GPREG0_LNKINTPOLL; | |
188 | else | |
189 | gpreg0 = GPREG0_DEFAULT; | |
190 | jwrite32(jme, JME_GPREG0, gpreg0); | |
191 | jwrite32(jme, JME_GPREG1, GPREG1_DEFAULT); | |
192 | } | |
193 | ||
194 | static inline void | |
195 | jme_reset_ghc_speed(struct jme_adapter *jme) | |
196 | { | |
197 | jme->reg_ghc &= ~(GHC_SPEED_1000M | GHC_DPX); | |
198 | jwrite32(jme, JME_GHC, jme->reg_ghc); | |
199 | } | |
200 | ||
201 | static inline void | |
202 | jme_clear_pm(struct jme_adapter *jme) | |
203 | { | |
204 | jwrite32(jme, JME_PMCS, 0xFFFF0000 | jme->reg_pmcs); | |
205 | pci_set_power_state(jme->pdev, PCI_D0); | |
206 | pci_enable_wake(jme->pdev, PCI_D0, false); | |
207 | } | |
208 | ||
209 | static int | |
210 | jme_reload_eeprom(struct jme_adapter *jme) | |
211 | { | |
212 | u32 val; | |
213 | int i; | |
214 | ||
215 | val = jread32(jme, JME_SMBCSR); | |
216 | ||
217 | if (val & SMBCSR_EEPROMD) { | |
218 | val |= SMBCSR_CNACK; | |
219 | jwrite32(jme, JME_SMBCSR, val); | |
220 | val |= SMBCSR_RELOAD; | |
221 | jwrite32(jme, JME_SMBCSR, val); | |
222 | mdelay(12); | |
223 | ||
224 | for (i = JME_EEPROM_RELOAD_TIMEOUT; i > 0; --i) { | |
225 | mdelay(1); | |
226 | if ((jread32(jme, JME_SMBCSR) & SMBCSR_RELOAD) == 0) | |
227 | break; | |
228 | } | |
229 | ||
230 | if (i == 0) { | |
231 | jeprintk(jme->pdev, "eeprom reload timeout\n"); | |
232 | return -EIO; | |
233 | } | |
234 | } | |
235 | ||
236 | return 0; | |
237 | } | |
238 | ||
239 | static void | |
240 | jme_load_macaddr(struct net_device *netdev) | |
241 | { | |
242 | struct jme_adapter *jme = netdev_priv(netdev); | |
243 | unsigned char macaddr[6]; | |
244 | u32 val; | |
245 | ||
246 | spin_lock_bh(&jme->macaddr_lock); | |
247 | val = jread32(jme, JME_RXUMA_LO); | |
248 | macaddr[0] = (val >> 0) & 0xFF; | |
249 | macaddr[1] = (val >> 8) & 0xFF; | |
250 | macaddr[2] = (val >> 16) & 0xFF; | |
251 | macaddr[3] = (val >> 24) & 0xFF; | |
252 | val = jread32(jme, JME_RXUMA_HI); | |
253 | macaddr[4] = (val >> 0) & 0xFF; | |
254 | macaddr[5] = (val >> 8) & 0xFF; | |
255 | memcpy(netdev->dev_addr, macaddr, 6); | |
256 | spin_unlock_bh(&jme->macaddr_lock); | |
257 | } | |
258 | ||
259 | static inline void | |
260 | jme_set_rx_pcc(struct jme_adapter *jme, int p) | |
261 | { | |
262 | switch (p) { | |
263 | case PCC_OFF: | |
264 | jwrite32(jme, JME_PCCRX0, | |
265 | ((PCC_OFF_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
266 | ((PCC_OFF_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
267 | break; | |
268 | case PCC_P1: | |
269 | jwrite32(jme, JME_PCCRX0, | |
270 | ((PCC_P1_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
271 | ((PCC_P1_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
272 | break; | |
273 | case PCC_P2: | |
274 | jwrite32(jme, JME_PCCRX0, | |
275 | ((PCC_P2_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
276 | ((PCC_P2_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
277 | break; | |
278 | case PCC_P3: | |
279 | jwrite32(jme, JME_PCCRX0, | |
280 | ((PCC_P3_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
281 | ((PCC_P3_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
282 | break; | |
283 | default: | |
284 | break; | |
285 | } | |
286 | wmb(); | |
287 | ||
288 | if (!(test_bit(JME_FLAG_POLL, &jme->flags))) | |
289 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
290 | msg_rx_status(jme, "Switched to PCC_P%d\n", p); | |
291 | #else | |
292 | netif_info(jme, rx_status, jme->dev, "Switched to PCC_P%d\n", p); | |
293 | #endif | |
294 | } | |
295 | ||
296 | static void | |
297 | jme_start_irq(struct jme_adapter *jme) | |
298 | { | |
299 | register struct dynpcc_info *dpi = &(jme->dpi); | |
300 | ||
301 | jme_set_rx_pcc(jme, PCC_P1); | |
302 | dpi->cur = PCC_P1; | |
303 | dpi->attempt = PCC_P1; | |
304 | dpi->cnt = 0; | |
305 | ||
306 | jwrite32(jme, JME_PCCTX, | |
307 | ((PCC_TX_TO << PCCTXTO_SHIFT) & PCCTXTO_MASK) | | |
308 | ((PCC_TX_CNT << PCCTX_SHIFT) & PCCTX_MASK) | | |
309 | PCCTXQ0_EN | |
310 | ); | |
311 | ||
312 | /* | |
313 | * Enable Interrupts | |
314 | */ | |
315 | jwrite32(jme, JME_IENS, INTR_ENABLE); | |
316 | } | |
317 | ||
318 | static inline void | |
319 | jme_stop_irq(struct jme_adapter *jme) | |
320 | { | |
321 | /* | |
322 | * Disable Interrupts | |
323 | */ | |
324 | jwrite32f(jme, JME_IENC, INTR_ENABLE); | |
325 | } | |
326 | ||
327 | static u32 | |
328 | jme_linkstat_from_phy(struct jme_adapter *jme) | |
329 | { | |
330 | u32 phylink, bmsr; | |
331 | ||
332 | phylink = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 17); | |
333 | bmsr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMSR); | |
334 | if (bmsr & BMSR_ANCOMP) | |
335 | phylink |= PHY_LINK_AUTONEG_COMPLETE; | |
336 | ||
337 | return phylink; | |
338 | } | |
339 | ||
340 | static inline void | |
341 | jme_set_phyfifoa(struct jme_adapter *jme) | |
342 | { | |
343 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0004); | |
344 | } | |
345 | ||
346 | static inline void | |
347 | jme_set_phyfifob(struct jme_adapter *jme) | |
348 | { | |
349 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0000); | |
350 | } | |
351 | ||
352 | static int | |
353 | jme_check_link(struct net_device *netdev, int testonly) | |
354 | { | |
355 | struct jme_adapter *jme = netdev_priv(netdev); | |
356 | u32 phylink, ghc, cnt = JME_SPDRSV_TIMEOUT, bmcr, gpreg1; | |
357 | char linkmsg[64]; | |
358 | int rc = 0; | |
359 | ||
360 | linkmsg[0] = '\0'; | |
361 | ||
362 | if (jme->fpgaver) | |
363 | phylink = jme_linkstat_from_phy(jme); | |
364 | else | |
365 | phylink = jread32(jme, JME_PHY_LINK); | |
366 | ||
367 | if (phylink & PHY_LINK_UP) { | |
368 | if (!(phylink & PHY_LINK_AUTONEG_COMPLETE)) { | |
369 | /* | |
370 | * If we did not enable AN | |
371 | * Speed/Duplex Info should be obtained from SMI | |
372 | */ | |
373 | phylink = PHY_LINK_UP; | |
374 | ||
375 | bmcr = jme_mdio_read(jme->dev, | |
376 | jme->mii_if.phy_id, | |
377 | MII_BMCR); | |
378 | ||
379 | phylink |= ((bmcr & BMCR_SPEED1000) && | |
380 | (bmcr & BMCR_SPEED100) == 0) ? | |
381 | PHY_LINK_SPEED_1000M : | |
382 | (bmcr & BMCR_SPEED100) ? | |
383 | PHY_LINK_SPEED_100M : | |
384 | PHY_LINK_SPEED_10M; | |
385 | ||
386 | phylink |= (bmcr & BMCR_FULLDPLX) ? | |
387 | PHY_LINK_DUPLEX : 0; | |
388 | ||
389 | strcat(linkmsg, "Forced: "); | |
390 | } else { | |
391 | /* | |
392 | * Keep polling for speed/duplex resolve complete | |
393 | */ | |
394 | while (!(phylink & PHY_LINK_SPEEDDPU_RESOLVED) && | |
395 | --cnt) { | |
396 | ||
397 | udelay(1); | |
398 | ||
399 | if (jme->fpgaver) | |
400 | phylink = jme_linkstat_from_phy(jme); | |
401 | else | |
402 | phylink = jread32(jme, JME_PHY_LINK); | |
403 | } | |
404 | if (!cnt) | |
405 | jeprintk(jme->pdev, | |
406 | "Waiting speed resolve timeout.\n"); | |
407 | ||
408 | strcat(linkmsg, "ANed: "); | |
409 | } | |
410 | ||
411 | if (jme->phylink == phylink) { | |
412 | rc = 1; | |
413 | goto out; | |
414 | } | |
415 | if (testonly) | |
416 | goto out; | |
417 | ||
418 | jme->phylink = phylink; | |
419 | ||
420 | ghc = jme->reg_ghc & ~(GHC_SPEED | GHC_DPX | | |
421 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE | | |
422 | GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY); | |
423 | switch (phylink & PHY_LINK_SPEED_MASK) { | |
424 | case PHY_LINK_SPEED_10M: | |
425 | ghc |= GHC_SPEED_10M | | |
426 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; | |
427 | strcat(linkmsg, "10 Mbps, "); | |
428 | break; | |
429 | case PHY_LINK_SPEED_100M: | |
430 | ghc |= GHC_SPEED_100M | | |
431 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; | |
432 | strcat(linkmsg, "100 Mbps, "); | |
433 | break; | |
434 | case PHY_LINK_SPEED_1000M: | |
435 | ghc |= GHC_SPEED_1000M | | |
436 | GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY; | |
437 | strcat(linkmsg, "1000 Mbps, "); | |
438 | break; | |
439 | default: | |
440 | break; | |
441 | } | |
442 | ||
443 | if (phylink & PHY_LINK_DUPLEX) { | |
444 | jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT); | |
445 | ghc |= GHC_DPX; | |
446 | } else { | |
447 | jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT | | |
448 | TXMCS_BACKOFF | | |
449 | TXMCS_CARRIERSENSE | | |
450 | TXMCS_COLLISION); | |
451 | jwrite32(jme, JME_TXTRHD, TXTRHD_TXPEN | | |
452 | ((0x2000 << TXTRHD_TXP_SHIFT) & TXTRHD_TXP) | | |
453 | TXTRHD_TXREN | | |
454 | ((8 << TXTRHD_TXRL_SHIFT) & TXTRHD_TXRL)); | |
455 | } | |
456 | ||
457 | gpreg1 = GPREG1_DEFAULT; | |
458 | if (is_buggy250(jme->pdev->device, jme->chiprev)) { | |
459 | if (!(phylink & PHY_LINK_DUPLEX)) | |
460 | gpreg1 |= GPREG1_HALFMODEPATCH; | |
461 | switch (phylink & PHY_LINK_SPEED_MASK) { | |
462 | case PHY_LINK_SPEED_10M: | |
463 | jme_set_phyfifoa(jme); | |
464 | gpreg1 |= GPREG1_RSSPATCH; | |
465 | break; | |
466 | case PHY_LINK_SPEED_100M: | |
467 | jme_set_phyfifob(jme); | |
468 | gpreg1 |= GPREG1_RSSPATCH; | |
469 | break; | |
470 | case PHY_LINK_SPEED_1000M: | |
471 | jme_set_phyfifoa(jme); | |
472 | break; | |
473 | default: | |
474 | break; | |
475 | } | |
476 | } | |
477 | ||
478 | jwrite32(jme, JME_GPREG1, gpreg1); | |
479 | jwrite32(jme, JME_GHC, ghc); | |
480 | jme->reg_ghc = ghc; | |
481 | ||
482 | strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ? | |
483 | "Full-Duplex, " : | |
484 | "Half-Duplex, "); | |
485 | strcat(linkmsg, (phylink & PHY_LINK_MDI_STAT) ? | |
486 | "MDI-X" : | |
487 | "MDI"); | |
488 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
489 | msg_link(jme, "Link is up at %s.\n", linkmsg); | |
490 | #else | |
491 | netif_info(jme, link, jme->dev, "Link is up at %s.\n", linkmsg); | |
492 | #endif | |
493 | netif_carrier_on(netdev); | |
494 | } else { | |
495 | if (testonly) | |
496 | goto out; | |
497 | ||
498 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
499 | msg_link(jme, "Link is down.\n"); | |
500 | #else | |
501 | netif_info(jme, link, jme->dev, "Link is down.\n"); | |
502 | #endif | |
503 | jme->phylink = 0; | |
504 | netif_carrier_off(netdev); | |
505 | } | |
506 | ||
507 | out: | |
508 | return rc; | |
509 | } | |
510 | ||
511 | static int | |
512 | jme_setup_tx_resources(struct jme_adapter *jme) | |
513 | { | |
514 | struct jme_ring *txring = &(jme->txring[0]); | |
515 | ||
516 | txring->alloc = dma_alloc_coherent(&(jme->pdev->dev), | |
517 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), | |
518 | &(txring->dmaalloc), | |
519 | GFP_ATOMIC); | |
520 | ||
521 | if (!txring->alloc) | |
522 | goto err_set_null; | |
523 | ||
524 | /* | |
525 | * 16 Bytes align | |
526 | */ | |
527 | txring->desc = (void *)ALIGN((unsigned long)(txring->alloc), | |
528 | RING_DESC_ALIGN); | |
529 | txring->dma = ALIGN(txring->dmaalloc, RING_DESC_ALIGN); | |
530 | txring->next_to_use = 0; | |
531 | atomic_set(&txring->next_to_clean, 0); | |
532 | atomic_set(&txring->nr_free, jme->tx_ring_size); | |
533 | ||
534 | txring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * | |
535 | jme->tx_ring_size, GFP_ATOMIC); | |
536 | if (unlikely(!(txring->bufinf))) | |
537 | goto err_free_txring; | |
538 | ||
539 | /* | |
540 | * Initialize Transmit Descriptors | |
541 | */ | |
542 | memset(txring->alloc, 0, TX_RING_ALLOC_SIZE(jme->tx_ring_size)); | |
543 | memset(txring->bufinf, 0, | |
544 | sizeof(struct jme_buffer_info) * jme->tx_ring_size); | |
545 | ||
546 | return 0; | |
547 | ||
548 | err_free_txring: | |
549 | dma_free_coherent(&(jme->pdev->dev), | |
550 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), | |
551 | txring->alloc, | |
552 | txring->dmaalloc); | |
553 | ||
554 | err_set_null: | |
555 | txring->desc = NULL; | |
556 | txring->dmaalloc = 0; | |
557 | txring->dma = 0; | |
558 | txring->bufinf = NULL; | |
559 | ||
560 | return -ENOMEM; | |
561 | } | |
562 | ||
563 | static void | |
564 | jme_free_tx_resources(struct jme_adapter *jme) | |
565 | { | |
566 | int i; | |
567 | struct jme_ring *txring = &(jme->txring[0]); | |
568 | struct jme_buffer_info *txbi; | |
569 | ||
570 | if (txring->alloc) { | |
571 | if (txring->bufinf) { | |
572 | for (i = 0 ; i < jme->tx_ring_size ; ++i) { | |
573 | txbi = txring->bufinf + i; | |
574 | if (txbi->skb) { | |
575 | dev_kfree_skb(txbi->skb); | |
576 | txbi->skb = NULL; | |
577 | } | |
578 | txbi->mapping = 0; | |
579 | txbi->len = 0; | |
580 | txbi->nr_desc = 0; | |
581 | txbi->start_xmit = 0; | |
582 | } | |
583 | kfree(txring->bufinf); | |
584 | } | |
585 | ||
586 | dma_free_coherent(&(jme->pdev->dev), | |
587 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), | |
588 | txring->alloc, | |
589 | txring->dmaalloc); | |
590 | ||
591 | txring->alloc = NULL; | |
592 | txring->desc = NULL; | |
593 | txring->dmaalloc = 0; | |
594 | txring->dma = 0; | |
595 | txring->bufinf = NULL; | |
596 | } | |
597 | txring->next_to_use = 0; | |
598 | atomic_set(&txring->next_to_clean, 0); | |
599 | atomic_set(&txring->nr_free, 0); | |
600 | } | |
601 | ||
602 | static inline void | |
603 | jme_enable_tx_engine(struct jme_adapter *jme) | |
604 | { | |
605 | /* | |
606 | * Select Queue 0 | |
607 | */ | |
608 | jwrite32(jme, JME_TXCS, TXCS_DEFAULT | TXCS_SELECT_QUEUE0); | |
609 | wmb(); | |
610 | ||
611 | /* | |
612 | * Setup TX Queue 0 DMA Bass Address | |
613 | */ | |
614 | jwrite32(jme, JME_TXDBA_LO, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); | |
615 | jwrite32(jme, JME_TXDBA_HI, (__u64)(jme->txring[0].dma) >> 32); | |
616 | jwrite32(jme, JME_TXNDA, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); | |
617 | ||
618 | /* | |
619 | * Setup TX Descptor Count | |
620 | */ | |
621 | jwrite32(jme, JME_TXQDC, jme->tx_ring_size); | |
622 | ||
623 | /* | |
624 | * Enable TX Engine | |
625 | */ | |
626 | wmb(); | |
627 | jwrite32(jme, JME_TXCS, jme->reg_txcs | | |
628 | TXCS_SELECT_QUEUE0 | | |
629 | TXCS_ENABLE); | |
630 | ||
631 | } | |
632 | ||
633 | static inline void | |
634 | jme_restart_tx_engine(struct jme_adapter *jme) | |
635 | { | |
636 | /* | |
637 | * Restart TX Engine | |
638 | */ | |
639 | jwrite32(jme, JME_TXCS, jme->reg_txcs | | |
640 | TXCS_SELECT_QUEUE0 | | |
641 | TXCS_ENABLE); | |
642 | } | |
643 | ||
644 | static inline void | |
645 | jme_disable_tx_engine(struct jme_adapter *jme) | |
646 | { | |
647 | int i; | |
648 | u32 val; | |
649 | ||
650 | /* | |
651 | * Disable TX Engine | |
652 | */ | |
653 | jwrite32(jme, JME_TXCS, jme->reg_txcs | TXCS_SELECT_QUEUE0); | |
654 | wmb(); | |
655 | ||
656 | val = jread32(jme, JME_TXCS); | |
657 | for (i = JME_TX_DISABLE_TIMEOUT ; (val & TXCS_ENABLE) && i > 0 ; --i) { | |
658 | mdelay(1); | |
659 | val = jread32(jme, JME_TXCS); | |
660 | rmb(); | |
661 | } | |
662 | ||
663 | if (!i) | |
664 | jeprintk(jme->pdev, "Disable TX engine timeout.\n"); | |
665 | } | |
666 | ||
667 | static void | |
668 | jme_set_clean_rxdesc(struct jme_adapter *jme, int i) | |
669 | { | |
670 | struct jme_ring *rxring = &(jme->rxring[0]); | |
671 | register struct rxdesc *rxdesc = rxring->desc; | |
672 | struct jme_buffer_info *rxbi = rxring->bufinf; | |
673 | rxdesc += i; | |
674 | rxbi += i; | |
675 | ||
676 | rxdesc->dw[0] = 0; | |
677 | rxdesc->dw[1] = 0; | |
678 | rxdesc->desc1.bufaddrh = cpu_to_le32((__u64)rxbi->mapping >> 32); | |
679 | rxdesc->desc1.bufaddrl = cpu_to_le32( | |
680 | (__u64)rxbi->mapping & 0xFFFFFFFFUL); | |
681 | rxdesc->desc1.datalen = cpu_to_le16(rxbi->len); | |
682 | if (jme->dev->features & NETIF_F_HIGHDMA) | |
683 | rxdesc->desc1.flags = RXFLAG_64BIT; | |
684 | wmb(); | |
685 | rxdesc->desc1.flags |= RXFLAG_OWN | RXFLAG_INT; | |
686 | } | |
687 | ||
688 | static int | |
689 | jme_make_new_rx_buf(struct jme_adapter *jme, int i) | |
690 | { | |
691 | struct jme_ring *rxring = &(jme->rxring[0]); | |
692 | struct jme_buffer_info *rxbi = rxring->bufinf + i; | |
693 | struct sk_buff *skb; | |
694 | ||
695 | skb = netdev_alloc_skb(jme->dev, | |
696 | jme->dev->mtu + RX_EXTRA_LEN); | |
697 | if (unlikely(!skb)) | |
698 | return -ENOMEM; | |
699 | #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) | |
700 | skb->dev = jme->dev; | |
701 | #endif | |
702 | ||
703 | rxbi->skb = skb; | |
704 | rxbi->len = skb_tailroom(skb); | |
705 | rxbi->mapping = pci_map_page(jme->pdev, | |
706 | virt_to_page(skb->data), | |
707 | offset_in_page(skb->data), | |
708 | rxbi->len, | |
709 | PCI_DMA_FROMDEVICE); | |
710 | ||
711 | return 0; | |
712 | } | |
713 | ||
714 | static void | |
715 | jme_free_rx_buf(struct jme_adapter *jme, int i) | |
716 | { | |
717 | struct jme_ring *rxring = &(jme->rxring[0]); | |
718 | struct jme_buffer_info *rxbi = rxring->bufinf; | |
719 | rxbi += i; | |
720 | ||
721 | if (rxbi->skb) { | |
722 | pci_unmap_page(jme->pdev, | |
723 | rxbi->mapping, | |
724 | rxbi->len, | |
725 | PCI_DMA_FROMDEVICE); | |
726 | dev_kfree_skb(rxbi->skb); | |
727 | rxbi->skb = NULL; | |
728 | rxbi->mapping = 0; | |
729 | rxbi->len = 0; | |
730 | } | |
731 | } | |
732 | ||
733 | static void | |
734 | jme_free_rx_resources(struct jme_adapter *jme) | |
735 | { | |
736 | int i; | |
737 | struct jme_ring *rxring = &(jme->rxring[0]); | |
738 | ||
739 | if (rxring->alloc) { | |
740 | if (rxring->bufinf) { | |
741 | for (i = 0 ; i < jme->rx_ring_size ; ++i) | |
742 | jme_free_rx_buf(jme, i); | |
743 | kfree(rxring->bufinf); | |
744 | } | |
745 | ||
746 | dma_free_coherent(&(jme->pdev->dev), | |
747 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), | |
748 | rxring->alloc, | |
749 | rxring->dmaalloc); | |
750 | rxring->alloc = NULL; | |
751 | rxring->desc = NULL; | |
752 | rxring->dmaalloc = 0; | |
753 | rxring->dma = 0; | |
754 | rxring->bufinf = NULL; | |
755 | } | |
756 | rxring->next_to_use = 0; | |
757 | atomic_set(&rxring->next_to_clean, 0); | |
758 | } | |
759 | ||
760 | static int | |
761 | jme_setup_rx_resources(struct jme_adapter *jme) | |
762 | { | |
763 | int i; | |
764 | struct jme_ring *rxring = &(jme->rxring[0]); | |
765 | ||
766 | rxring->alloc = dma_alloc_coherent(&(jme->pdev->dev), | |
767 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), | |
768 | &(rxring->dmaalloc), | |
769 | GFP_ATOMIC); | |
770 | if (!rxring->alloc) | |
771 | goto err_set_null; | |
772 | ||
773 | /* | |
774 | * 16 Bytes align | |
775 | */ | |
776 | rxring->desc = (void *)ALIGN((unsigned long)(rxring->alloc), | |
777 | RING_DESC_ALIGN); | |
778 | rxring->dma = ALIGN(rxring->dmaalloc, RING_DESC_ALIGN); | |
779 | rxring->next_to_use = 0; | |
780 | atomic_set(&rxring->next_to_clean, 0); | |
781 | ||
782 | rxring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * | |
783 | jme->rx_ring_size, GFP_ATOMIC); | |
784 | if (unlikely(!(rxring->bufinf))) | |
785 | goto err_free_rxring; | |
786 | ||
787 | /* | |
788 | * Initiallize Receive Descriptors | |
789 | */ | |
790 | memset(rxring->bufinf, 0, | |
791 | sizeof(struct jme_buffer_info) * jme->rx_ring_size); | |
792 | for (i = 0 ; i < jme->rx_ring_size ; ++i) { | |
793 | if (unlikely(jme_make_new_rx_buf(jme, i))) { | |
794 | jme_free_rx_resources(jme); | |
795 | return -ENOMEM; | |
796 | } | |
797 | ||
798 | jme_set_clean_rxdesc(jme, i); | |
799 | } | |
800 | ||
801 | return 0; | |
802 | ||
803 | err_free_rxring: | |
804 | dma_free_coherent(&(jme->pdev->dev), | |
805 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), | |
806 | rxring->alloc, | |
807 | rxring->dmaalloc); | |
808 | err_set_null: | |
809 | rxring->desc = NULL; | |
810 | rxring->dmaalloc = 0; | |
811 | rxring->dma = 0; | |
812 | rxring->bufinf = NULL; | |
813 | ||
814 | return -ENOMEM; | |
815 | } | |
816 | ||
817 | static inline void | |
818 | jme_enable_rx_engine(struct jme_adapter *jme) | |
819 | { | |
820 | /* | |
821 | * Select Queue 0 | |
822 | */ | |
823 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | | |
824 | RXCS_QUEUESEL_Q0); | |
825 | wmb(); | |
826 | ||
827 | /* | |
828 | * Setup RX DMA Bass Address | |
829 | */ | |
830 | jwrite32(jme, JME_RXDBA_LO, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); | |
831 | jwrite32(jme, JME_RXDBA_HI, (__u64)(jme->rxring[0].dma) >> 32); | |
832 | jwrite32(jme, JME_RXNDA, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); | |
833 | ||
834 | /* | |
835 | * Setup RX Descriptor Count | |
836 | */ | |
837 | jwrite32(jme, JME_RXQDC, jme->rx_ring_size); | |
838 | ||
839 | /* | |
840 | * Setup Unicast Filter | |
841 | */ | |
842 | jme_set_multi(jme->dev); | |
843 | ||
844 | /* | |
845 | * Enable RX Engine | |
846 | */ | |
847 | wmb(); | |
848 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | | |
849 | RXCS_QUEUESEL_Q0 | | |
850 | RXCS_ENABLE | | |
851 | RXCS_QST); | |
852 | } | |
853 | ||
854 | static inline void | |
855 | jme_restart_rx_engine(struct jme_adapter *jme) | |
856 | { | |
857 | /* | |
858 | * Start RX Engine | |
859 | */ | |
860 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | | |
861 | RXCS_QUEUESEL_Q0 | | |
862 | RXCS_ENABLE | | |
863 | RXCS_QST); | |
864 | } | |
865 | ||
866 | static inline void | |
867 | jme_disable_rx_engine(struct jme_adapter *jme) | |
868 | { | |
869 | int i; | |
870 | u32 val; | |
871 | ||
872 | /* | |
873 | * Disable RX Engine | |
874 | */ | |
875 | jwrite32(jme, JME_RXCS, jme->reg_rxcs); | |
876 | wmb(); | |
877 | ||
878 | val = jread32(jme, JME_RXCS); | |
879 | for (i = JME_RX_DISABLE_TIMEOUT ; (val & RXCS_ENABLE) && i > 0 ; --i) { | |
880 | mdelay(1); | |
881 | val = jread32(jme, JME_RXCS); | |
882 | rmb(); | |
883 | } | |
884 | ||
885 | if (!i) | |
886 | jeprintk(jme->pdev, "Disable RX engine timeout.\n"); | |
887 | ||
888 | } | |
889 | ||
890 | static int | |
891 | jme_rxsum_ok(struct jme_adapter *jme, u16 flags) | |
892 | { | |
893 | if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4))) | |
894 | return false; | |
895 | ||
896 | if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_TCPON | RXWBFLAG_TCPCS)) | |
897 | == RXWBFLAG_TCPON)) { | |
898 | if (flags & RXWBFLAG_IPV4) | |
899 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
900 | msg_rx_err(jme, "TCP Checksum error\n"); | |
901 | #else | |
902 | netif_err(jme, rx_err, jme->dev, "TCP Checksum error\n"); | |
903 | #endif | |
904 | return false; | |
905 | } | |
906 | ||
907 | if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_UDPON | RXWBFLAG_UDPCS)) | |
908 | == RXWBFLAG_UDPON)) { | |
909 | if (flags & RXWBFLAG_IPV4) | |
910 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
911 | msg_rx_err(jme, "UDP Checksum error.\n"); | |
912 | #else | |
913 | netif_err(jme, rx_err, jme->dev, "UDP Checksum error.\n"); | |
914 | #endif | |
915 | return false; | |
916 | } | |
917 | ||
918 | if (unlikely((flags & (RXWBFLAG_IPV4 | RXWBFLAG_IPCS)) | |
919 | == RXWBFLAG_IPV4)) { | |
920 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
921 | msg_rx_err(jme, "IPv4 Checksum error.\n"); | |
922 | #else | |
923 | netif_err(jme, rx_err, jme->dev, "IPv4 Checksum error.\n"); | |
924 | #endif | |
925 | return false; | |
926 | } | |
927 | ||
928 | return true; | |
929 | } | |
930 | ||
931 | static void | |
932 | jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx) | |
933 | { | |
934 | struct jme_ring *rxring = &(jme->rxring[0]); | |
935 | struct rxdesc *rxdesc = rxring->desc; | |
936 | struct jme_buffer_info *rxbi = rxring->bufinf; | |
937 | struct sk_buff *skb; | |
938 | int framesize; | |
939 | ||
940 | rxdesc += idx; | |
941 | rxbi += idx; | |
942 | ||
943 | skb = rxbi->skb; | |
944 | pci_dma_sync_single_for_cpu(jme->pdev, | |
945 | rxbi->mapping, | |
946 | rxbi->len, | |
947 | PCI_DMA_FROMDEVICE); | |
948 | ||
949 | if (unlikely(jme_make_new_rx_buf(jme, idx))) { | |
950 | pci_dma_sync_single_for_device(jme->pdev, | |
951 | rxbi->mapping, | |
952 | rxbi->len, | |
953 | PCI_DMA_FROMDEVICE); | |
954 | ||
955 | ++(NET_STAT(jme).rx_dropped); | |
956 | } else { | |
957 | framesize = le16_to_cpu(rxdesc->descwb.framesize) | |
958 | - RX_PREPAD_SIZE; | |
959 | ||
960 | skb_reserve(skb, RX_PREPAD_SIZE); | |
961 | skb_put(skb, framesize); | |
962 | skb->protocol = eth_type_trans(skb, jme->dev); | |
963 | ||
964 | if (jme_rxsum_ok(jme, le16_to_cpu(rxdesc->descwb.flags))) | |
965 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
966 | else | |
967 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,35) | |
968 | skb->ip_summed = CHECKSUM_NONE; | |
969 | #else | |
970 | skb_checksum_none_assert(skb); | |
971 | #endif | |
972 | ||
973 | if (rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_TAGON)) { | |
974 | if (jme->vlgrp) { | |
975 | jme->jme_vlan_rx(skb, jme->vlgrp, | |
976 | le16_to_cpu(rxdesc->descwb.vlan)); | |
977 | NET_STAT(jme).rx_bytes += 4; | |
978 | } else { | |
979 | dev_kfree_skb(skb); | |
980 | } | |
981 | } else { | |
982 | jme->jme_rx(skb); | |
983 | } | |
984 | ||
985 | if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_DEST)) == | |
986 | cpu_to_le16(RXWBFLAG_DEST_MUL)) | |
987 | ++(NET_STAT(jme).multicast); | |
988 | ||
989 | NET_STAT(jme).rx_bytes += framesize; | |
990 | ++(NET_STAT(jme).rx_packets); | |
991 | } | |
992 | ||
993 | jme_set_clean_rxdesc(jme, idx); | |
994 | ||
995 | } | |
996 | ||
997 | static int | |
998 | jme_process_receive(struct jme_adapter *jme, int limit) | |
999 | { | |
1000 | struct jme_ring *rxring = &(jme->rxring[0]); | |
1001 | struct rxdesc *rxdesc = rxring->desc; | |
1002 | int i, j, ccnt, desccnt, mask = jme->rx_ring_mask; | |
1003 | ||
1004 | if (unlikely(!atomic_dec_and_test(&jme->rx_cleaning))) | |
1005 | goto out_inc; | |
1006 | ||
1007 | if (unlikely(atomic_read(&jme->link_changing) != 1)) | |
1008 | goto out_inc; | |
1009 | ||
1010 | if (unlikely(!netif_carrier_ok(jme->dev))) | |
1011 | goto out_inc; | |
1012 | ||
1013 | i = atomic_read(&rxring->next_to_clean); | |
1014 | while (limit > 0) { | |
1015 | rxdesc = rxring->desc; | |
1016 | rxdesc += i; | |
1017 | ||
1018 | if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_OWN)) || | |
1019 | !(rxdesc->descwb.desccnt & RXWBDCNT_WBCPL)) | |
1020 | goto out; | |
1021 | --limit; | |
1022 | ||
1023 | desccnt = rxdesc->descwb.desccnt & RXWBDCNT_DCNT; | |
1024 | ||
1025 | if (unlikely(desccnt > 1 || | |
1026 | rxdesc->descwb.errstat & RXWBERR_ALLERR)) { | |
1027 | ||
1028 | if (rxdesc->descwb.errstat & RXWBERR_CRCERR) | |
1029 | ++(NET_STAT(jme).rx_crc_errors); | |
1030 | else if (rxdesc->descwb.errstat & RXWBERR_OVERUN) | |
1031 | ++(NET_STAT(jme).rx_fifo_errors); | |
1032 | else | |
1033 | ++(NET_STAT(jme).rx_errors); | |
1034 | ||
1035 | if (desccnt > 1) | |
1036 | limit -= desccnt - 1; | |
1037 | ||
1038 | for (j = i, ccnt = desccnt ; ccnt-- ; ) { | |
1039 | jme_set_clean_rxdesc(jme, j); | |
1040 | j = (j + 1) & (mask); | |
1041 | } | |
1042 | ||
1043 | } else { | |
1044 | jme_alloc_and_feed_skb(jme, i); | |
1045 | } | |
1046 | ||
1047 | i = (i + desccnt) & (mask); | |
1048 | } | |
1049 | ||
1050 | out: | |
1051 | atomic_set(&rxring->next_to_clean, i); | |
1052 | ||
1053 | out_inc: | |
1054 | atomic_inc(&jme->rx_cleaning); | |
1055 | ||
1056 | return limit > 0 ? limit : 0; | |
1057 | ||
1058 | } | |
1059 | ||
1060 | static void | |
1061 | jme_attempt_pcc(struct dynpcc_info *dpi, int atmp) | |
1062 | { | |
1063 | if (likely(atmp == dpi->cur)) { | |
1064 | dpi->cnt = 0; | |
1065 | return; | |
1066 | } | |
1067 | ||
1068 | if (dpi->attempt == atmp) { | |
1069 | ++(dpi->cnt); | |
1070 | } else { | |
1071 | dpi->attempt = atmp; | |
1072 | dpi->cnt = 0; | |
1073 | } | |
1074 | ||
1075 | } | |
1076 | ||
1077 | static void | |
1078 | jme_dynamic_pcc(struct jme_adapter *jme) | |
1079 | { | |
1080 | register struct dynpcc_info *dpi = &(jme->dpi); | |
1081 | ||
1082 | if ((NET_STAT(jme).rx_bytes - dpi->last_bytes) > PCC_P3_THRESHOLD) | |
1083 | jme_attempt_pcc(dpi, PCC_P3); | |
1084 | else if ((NET_STAT(jme).rx_packets - dpi->last_pkts) > PCC_P2_THRESHOLD || | |
1085 | dpi->intr_cnt > PCC_INTR_THRESHOLD) | |
1086 | jme_attempt_pcc(dpi, PCC_P2); | |
1087 | else | |
1088 | jme_attempt_pcc(dpi, PCC_P1); | |
1089 | ||
1090 | if (unlikely(dpi->attempt != dpi->cur && dpi->cnt > 5)) { | |
1091 | if (dpi->attempt < dpi->cur) | |
1092 | tasklet_schedule(&jme->rxclean_task); | |
1093 | jme_set_rx_pcc(jme, dpi->attempt); | |
1094 | dpi->cur = dpi->attempt; | |
1095 | dpi->cnt = 0; | |
1096 | } | |
1097 | } | |
1098 | ||
1099 | static void | |
1100 | jme_start_pcc_timer(struct jme_adapter *jme) | |
1101 | { | |
1102 | struct dynpcc_info *dpi = &(jme->dpi); | |
1103 | dpi->last_bytes = NET_STAT(jme).rx_bytes; | |
1104 | dpi->last_pkts = NET_STAT(jme).rx_packets; | |
1105 | dpi->intr_cnt = 0; | |
1106 | jwrite32(jme, JME_TMCSR, | |
1107 | TMCSR_EN | ((0xFFFFFF - PCC_INTERVAL_US) & TMCSR_CNT)); | |
1108 | } | |
1109 | ||
1110 | static inline void | |
1111 | jme_stop_pcc_timer(struct jme_adapter *jme) | |
1112 | { | |
1113 | jwrite32(jme, JME_TMCSR, 0); | |
1114 | } | |
1115 | ||
1116 | static void | |
1117 | jme_shutdown_nic(struct jme_adapter *jme) | |
1118 | { | |
1119 | u32 phylink; | |
1120 | ||
1121 | phylink = jme_linkstat_from_phy(jme); | |
1122 | ||
1123 | if (!(phylink & PHY_LINK_UP)) { | |
1124 | /* | |
1125 | * Disable all interrupt before issue timer | |
1126 | */ | |
1127 | jme_stop_irq(jme); | |
1128 | jwrite32(jme, JME_TIMER2, TMCSR_EN | 0xFFFFFE); | |
1129 | } | |
1130 | } | |
1131 | ||
1132 | static void | |
1133 | jme_pcc_tasklet(unsigned long arg) | |
1134 | { | |
1135 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1136 | struct net_device *netdev = jme->dev; | |
1137 | ||
1138 | if (unlikely(test_bit(JME_FLAG_SHUTDOWN, &jme->flags))) { | |
1139 | jme_shutdown_nic(jme); | |
1140 | return; | |
1141 | } | |
1142 | ||
1143 | if (unlikely(!netif_carrier_ok(netdev) || | |
1144 | (atomic_read(&jme->link_changing) != 1) | |
1145 | )) { | |
1146 | jme_stop_pcc_timer(jme); | |
1147 | return; | |
1148 | } | |
1149 | ||
1150 | if (!(test_bit(JME_FLAG_POLL, &jme->flags))) | |
1151 | jme_dynamic_pcc(jme); | |
1152 | ||
1153 | jme_start_pcc_timer(jme); | |
1154 | } | |
1155 | ||
1156 | static inline void | |
1157 | jme_polling_mode(struct jme_adapter *jme) | |
1158 | { | |
1159 | jme_set_rx_pcc(jme, PCC_OFF); | |
1160 | } | |
1161 | ||
1162 | static inline void | |
1163 | jme_interrupt_mode(struct jme_adapter *jme) | |
1164 | { | |
1165 | jme_set_rx_pcc(jme, PCC_P1); | |
1166 | } | |
1167 | ||
1168 | static inline int | |
1169 | jme_pseudo_hotplug_enabled(struct jme_adapter *jme) | |
1170 | { | |
1171 | u32 apmc; | |
1172 | apmc = jread32(jme, JME_APMC); | |
1173 | return apmc & JME_APMC_PSEUDO_HP_EN; | |
1174 | } | |
1175 | ||
1176 | static void | |
1177 | jme_start_shutdown_timer(struct jme_adapter *jme) | |
1178 | { | |
1179 | u32 apmc; | |
1180 | ||
1181 | apmc = jread32(jme, JME_APMC) | JME_APMC_PCIE_SD_EN; | |
1182 | apmc &= ~JME_APMC_EPIEN_CTRL; | |
1183 | if (!no_extplug) { | |
1184 | jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_EN); | |
1185 | wmb(); | |
1186 | } | |
1187 | jwrite32f(jme, JME_APMC, apmc); | |
1188 | ||
1189 | jwrite32f(jme, JME_TIMER2, 0); | |
1190 | set_bit(JME_FLAG_SHUTDOWN, &jme->flags); | |
1191 | jwrite32(jme, JME_TMCSR, | |
1192 | TMCSR_EN | ((0xFFFFFF - APMC_PHP_SHUTDOWN_DELAY) & TMCSR_CNT)); | |
1193 | } | |
1194 | ||
1195 | static void | |
1196 | jme_stop_shutdown_timer(struct jme_adapter *jme) | |
1197 | { | |
1198 | u32 apmc; | |
1199 | ||
1200 | jwrite32f(jme, JME_TMCSR, 0); | |
1201 | jwrite32f(jme, JME_TIMER2, 0); | |
1202 | clear_bit(JME_FLAG_SHUTDOWN, &jme->flags); | |
1203 | ||
1204 | apmc = jread32(jme, JME_APMC); | |
1205 | apmc &= ~(JME_APMC_PCIE_SD_EN | JME_APMC_EPIEN_CTRL); | |
1206 | jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_DIS); | |
1207 | wmb(); | |
1208 | jwrite32f(jme, JME_APMC, apmc); | |
1209 | } | |
1210 | ||
1211 | static void | |
1212 | jme_link_change_tasklet(unsigned long arg) | |
1213 | { | |
1214 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1215 | struct net_device *netdev = jme->dev; | |
1216 | int rc; | |
1217 | ||
1218 | while (!atomic_dec_and_test(&jme->link_changing)) { | |
1219 | atomic_inc(&jme->link_changing); | |
1220 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
1221 | msg_intr(jme, "Get link change lock failed.\n"); | |
1222 | #else | |
1223 | netif_info(jme, intr, jme->dev, "Get link change lock failed.\n"); | |
1224 | #endif | |
1225 | while (atomic_read(&jme->link_changing) != 1) | |
1226 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
1227 | msg_intr(jme, "Waiting link change lock.\n"); | |
1228 | #else | |
1229 | netif_info(jme, intr, jme->dev, "Waiting link change lock.\n"); | |
1230 | #endif | |
1231 | } | |
1232 | ||
1233 | if (jme_check_link(netdev, 1) && jme->old_mtu == netdev->mtu) | |
1234 | goto out; | |
1235 | ||
1236 | jme->old_mtu = netdev->mtu; | |
1237 | netif_stop_queue(netdev); | |
1238 | if (jme_pseudo_hotplug_enabled(jme)) | |
1239 | jme_stop_shutdown_timer(jme); | |
1240 | ||
1241 | jme_stop_pcc_timer(jme); | |
1242 | tasklet_disable(&jme->txclean_task); | |
1243 | tasklet_disable(&jme->rxclean_task); | |
1244 | tasklet_disable(&jme->rxempty_task); | |
1245 | ||
1246 | if (netif_carrier_ok(netdev)) { | |
1247 | jme_reset_ghc_speed(jme); | |
1248 | jme_disable_rx_engine(jme); | |
1249 | jme_disable_tx_engine(jme); | |
1250 | jme_reset_mac_processor(jme); | |
1251 | jme_free_rx_resources(jme); | |
1252 | jme_free_tx_resources(jme); | |
1253 | ||
1254 | if (test_bit(JME_FLAG_POLL, &jme->flags)) | |
1255 | jme_polling_mode(jme); | |
1256 | ||
1257 | netif_carrier_off(netdev); | |
1258 | } | |
1259 | ||
1260 | jme_check_link(netdev, 0); | |
1261 | if (netif_carrier_ok(netdev)) { | |
1262 | rc = jme_setup_rx_resources(jme); | |
1263 | if (rc) { | |
1264 | jeprintk(jme->pdev, "Allocating resources for RX error" | |
1265 | ", Device STOPPED!\n"); | |
1266 | goto out_enable_tasklet; | |
1267 | } | |
1268 | ||
1269 | rc = jme_setup_tx_resources(jme); | |
1270 | if (rc) { | |
1271 | jeprintk(jme->pdev, "Allocating resources for TX error" | |
1272 | ", Device STOPPED!\n"); | |
1273 | goto err_out_free_rx_resources; | |
1274 | } | |
1275 | ||
1276 | jme_enable_rx_engine(jme); | |
1277 | jme_enable_tx_engine(jme); | |
1278 | ||
1279 | netif_start_queue(netdev); | |
1280 | ||
1281 | if (test_bit(JME_FLAG_POLL, &jme->flags)) | |
1282 | jme_interrupt_mode(jme); | |
1283 | ||
1284 | jme_start_pcc_timer(jme); | |
1285 | } else if (jme_pseudo_hotplug_enabled(jme)) { | |
1286 | jme_start_shutdown_timer(jme); | |
1287 | } | |
1288 | ||
1289 | goto out_enable_tasklet; | |
1290 | ||
1291 | err_out_free_rx_resources: | |
1292 | jme_free_rx_resources(jme); | |
1293 | out_enable_tasklet: | |
1294 | tasklet_enable(&jme->txclean_task); | |
1295 | tasklet_hi_enable(&jme->rxclean_task); | |
1296 | tasklet_hi_enable(&jme->rxempty_task); | |
1297 | out: | |
1298 | atomic_inc(&jme->link_changing); | |
1299 | } | |
1300 | ||
1301 | static void | |
1302 | jme_rx_clean_tasklet(unsigned long arg) | |
1303 | { | |
1304 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1305 | struct dynpcc_info *dpi = &(jme->dpi); | |
1306 | ||
1307 | jme_process_receive(jme, jme->rx_ring_size); | |
1308 | ++(dpi->intr_cnt); | |
1309 | ||
1310 | } | |
1311 | ||
1312 | static int | |
1313 | jme_poll(JME_NAPI_HOLDER(holder), JME_NAPI_WEIGHT(budget)) | |
1314 | { | |
1315 | struct jme_adapter *jme = jme_napi_priv(holder); | |
1316 | DECLARE_NETDEV | |
1317 | int rest; | |
1318 | ||
1319 | rest = jme_process_receive(jme, JME_NAPI_WEIGHT_VAL(budget)); | |
1320 | ||
1321 | while (atomic_read(&jme->rx_empty) > 0) { | |
1322 | atomic_dec(&jme->rx_empty); | |
1323 | ++(NET_STAT(jme).rx_dropped); | |
1324 | jme_restart_rx_engine(jme); | |
1325 | } | |
1326 | atomic_inc(&jme->rx_empty); | |
1327 | ||
1328 | if (rest) { | |
1329 | JME_RX_COMPLETE(netdev, holder); | |
1330 | jme_interrupt_mode(jme); | |
1331 | } | |
1332 | ||
1333 | JME_NAPI_WEIGHT_SET(budget, rest); | |
1334 | return JME_NAPI_WEIGHT_VAL(budget) - rest; | |
1335 | } | |
1336 | ||
1337 | static void | |
1338 | jme_rx_empty_tasklet(unsigned long arg) | |
1339 | { | |
1340 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1341 | ||
1342 | if (unlikely(atomic_read(&jme->link_changing) != 1)) | |
1343 | return; | |
1344 | ||
1345 | if (unlikely(!netif_carrier_ok(jme->dev))) | |
1346 | return; | |
1347 | ||
1348 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
1349 | msg_rx_status(jme, "RX Queue Full!\n"); | |
1350 | #else | |
1351 | netif_info(jme, rx_status, jme->dev, "RX Queue Full!\n"); | |
1352 | #endif | |
1353 | ||
1354 | jme_rx_clean_tasklet(arg); | |
1355 | ||
1356 | while (atomic_read(&jme->rx_empty) > 0) { | |
1357 | atomic_dec(&jme->rx_empty); | |
1358 | ++(NET_STAT(jme).rx_dropped); | |
1359 | jme_restart_rx_engine(jme); | |
1360 | } | |
1361 | atomic_inc(&jme->rx_empty); | |
1362 | } | |
1363 | ||
1364 | static void | |
1365 | jme_wake_queue_if_stopped(struct jme_adapter *jme) | |
1366 | { | |
1367 | struct jme_ring *txring = &(jme->txring[0]); | |
1368 | ||
1369 | smp_wmb(); | |
1370 | if (unlikely(netif_queue_stopped(jme->dev) && | |
1371 | atomic_read(&txring->nr_free) >= (jme->tx_wake_threshold))) { | |
1372 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
1373 | msg_tx_done(jme, "TX Queue Waked.\n"); | |
1374 | #else | |
1375 | netif_info(jme, tx_done, jme->dev, "TX Queue Waked.\n"); | |
1376 | #endif | |
1377 | netif_wake_queue(jme->dev); | |
1378 | } | |
1379 | ||
1380 | } | |
1381 | ||
1382 | static void | |
1383 | jme_tx_clean_tasklet(unsigned long arg) | |
1384 | { | |
1385 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1386 | struct jme_ring *txring = &(jme->txring[0]); | |
1387 | struct txdesc *txdesc = txring->desc; | |
1388 | struct jme_buffer_info *txbi = txring->bufinf, *ctxbi, *ttxbi; | |
1389 | int i, j, cnt = 0, max, err, mask; | |
1390 | ||
1391 | tx_dbg(jme, "Into txclean.\n"); | |
1392 | ||
1393 | if (unlikely(!atomic_dec_and_test(&jme->tx_cleaning))) | |
1394 | goto out; | |
1395 | ||
1396 | if (unlikely(atomic_read(&jme->link_changing) != 1)) | |
1397 | goto out; | |
1398 | ||
1399 | if (unlikely(!netif_carrier_ok(jme->dev))) | |
1400 | goto out; | |
1401 | ||
1402 | max = jme->tx_ring_size - atomic_read(&txring->nr_free); | |
1403 | mask = jme->tx_ring_mask; | |
1404 | ||
1405 | for (i = atomic_read(&txring->next_to_clean) ; cnt < max ; ) { | |
1406 | ||
1407 | ctxbi = txbi + i; | |
1408 | ||
1409 | if (likely(ctxbi->skb && | |
1410 | !(txdesc[i].descwb.flags & TXWBFLAG_OWN))) { | |
1411 | ||
1412 | tx_dbg(jme, "txclean: %d+%d@%lu\n", | |
1413 | i, ctxbi->nr_desc, jiffies); | |
1414 | ||
1415 | err = txdesc[i].descwb.flags & TXWBFLAG_ALLERR; | |
1416 | ||
1417 | for (j = 1 ; j < ctxbi->nr_desc ; ++j) { | |
1418 | ttxbi = txbi + ((i + j) & (mask)); | |
1419 | txdesc[(i + j) & (mask)].dw[0] = 0; | |
1420 | ||
1421 | pci_unmap_page(jme->pdev, | |
1422 | ttxbi->mapping, | |
1423 | ttxbi->len, | |
1424 | PCI_DMA_TODEVICE); | |
1425 | ||
1426 | ttxbi->mapping = 0; | |
1427 | ttxbi->len = 0; | |
1428 | } | |
1429 | ||
1430 | dev_kfree_skb(ctxbi->skb); | |
1431 | ||
1432 | cnt += ctxbi->nr_desc; | |
1433 | ||
1434 | if (unlikely(err)) { | |
1435 | ++(NET_STAT(jme).tx_carrier_errors); | |
1436 | } else { | |
1437 | ++(NET_STAT(jme).tx_packets); | |
1438 | NET_STAT(jme).tx_bytes += ctxbi->len; | |
1439 | } | |
1440 | ||
1441 | ctxbi->skb = NULL; | |
1442 | ctxbi->len = 0; | |
1443 | ctxbi->start_xmit = 0; | |
1444 | ||
1445 | } else { | |
1446 | break; | |
1447 | } | |
1448 | ||
1449 | i = (i + ctxbi->nr_desc) & mask; | |
1450 | ||
1451 | ctxbi->nr_desc = 0; | |
1452 | } | |
1453 | ||
1454 | tx_dbg(jme, "txclean: done %d@%lu.\n", i, jiffies); | |
1455 | atomic_set(&txring->next_to_clean, i); | |
1456 | atomic_add(cnt, &txring->nr_free); | |
1457 | ||
1458 | jme_wake_queue_if_stopped(jme); | |
1459 | ||
1460 | out: | |
1461 | atomic_inc(&jme->tx_cleaning); | |
1462 | } | |
1463 | ||
1464 | static void | |
1465 | jme_intr_msi(struct jme_adapter *jme, u32 intrstat) | |
1466 | { | |
1467 | /* | |
1468 | * Disable interrupt | |
1469 | */ | |
1470 | jwrite32f(jme, JME_IENC, INTR_ENABLE); | |
1471 | ||
1472 | if (intrstat & (INTR_LINKCH | INTR_SWINTR)) { | |
1473 | /* | |
1474 | * Link change event is critical | |
1475 | * all other events are ignored | |
1476 | */ | |
1477 | jwrite32(jme, JME_IEVE, intrstat); | |
1478 | tasklet_schedule(&jme->linkch_task); | |
1479 | goto out_reenable; | |
1480 | } | |
1481 | ||
1482 | if (intrstat & INTR_TMINTR) { | |
1483 | jwrite32(jme, JME_IEVE, INTR_TMINTR); | |
1484 | tasklet_schedule(&jme->pcc_task); | |
1485 | } | |
1486 | ||
1487 | if (intrstat & (INTR_PCCTXTO | INTR_PCCTX)) { | |
1488 | jwrite32(jme, JME_IEVE, INTR_PCCTXTO | INTR_PCCTX | INTR_TX0); | |
1489 | tasklet_schedule(&jme->txclean_task); | |
1490 | } | |
1491 | ||
1492 | if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { | |
1493 | jwrite32(jme, JME_IEVE, (intrstat & (INTR_PCCRX0TO | | |
1494 | INTR_PCCRX0 | | |
1495 | INTR_RX0EMP)) | | |
1496 | INTR_RX0); | |
1497 | } | |
1498 | ||
1499 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
1500 | if (intrstat & INTR_RX0EMP) | |
1501 | atomic_inc(&jme->rx_empty); | |
1502 | ||
1503 | if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { | |
1504 | if (likely(JME_RX_SCHEDULE_PREP(jme))) { | |
1505 | jme_polling_mode(jme); | |
1506 | JME_RX_SCHEDULE(jme); | |
1507 | } | |
1508 | } | |
1509 | } else { | |
1510 | if (intrstat & INTR_RX0EMP) { | |
1511 | atomic_inc(&jme->rx_empty); | |
1512 | tasklet_hi_schedule(&jme->rxempty_task); | |
1513 | } else if (intrstat & (INTR_PCCRX0TO | INTR_PCCRX0)) { | |
1514 | tasklet_hi_schedule(&jme->rxclean_task); | |
1515 | } | |
1516 | } | |
1517 | ||
1518 | out_reenable: | |
1519 | /* | |
1520 | * Re-enable interrupt | |
1521 | */ | |
1522 | jwrite32f(jme, JME_IENS, INTR_ENABLE); | |
1523 | } | |
1524 | ||
1525 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18) | |
1526 | static irqreturn_t | |
1527 | jme_intr(int irq, void *dev_id, struct pt_regs *regs) | |
1528 | #else | |
1529 | static irqreturn_t | |
1530 | jme_intr(int irq, void *dev_id) | |
1531 | #endif | |
1532 | { | |
1533 | struct net_device *netdev = dev_id; | |
1534 | struct jme_adapter *jme = netdev_priv(netdev); | |
1535 | u32 intrstat; | |
1536 | ||
1537 | intrstat = jread32(jme, JME_IEVE); | |
1538 | ||
1539 | /* | |
1540 | * Check if it's really an interrupt for us | |
1541 | */ | |
1542 | if (unlikely((intrstat & INTR_ENABLE) == 0)) | |
1543 | return IRQ_NONE; | |
1544 | ||
1545 | /* | |
1546 | * Check if the device still exist | |
1547 | */ | |
1548 | if (unlikely(intrstat == ~((typeof(intrstat))0))) | |
1549 | return IRQ_NONE; | |
1550 | ||
1551 | jme_intr_msi(jme, intrstat); | |
1552 | ||
1553 | return IRQ_HANDLED; | |
1554 | } | |
1555 | ||
1556 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18) | |
1557 | static irqreturn_t | |
1558 | jme_msi(int irq, void *dev_id, struct pt_regs *regs) | |
1559 | #else | |
1560 | static irqreturn_t | |
1561 | jme_msi(int irq, void *dev_id) | |
1562 | #endif | |
1563 | { | |
1564 | struct net_device *netdev = dev_id; | |
1565 | struct jme_adapter *jme = netdev_priv(netdev); | |
1566 | u32 intrstat; | |
1567 | ||
1568 | intrstat = jread32(jme, JME_IEVE); | |
1569 | ||
1570 | jme_intr_msi(jme, intrstat); | |
1571 | ||
1572 | return IRQ_HANDLED; | |
1573 | } | |
1574 | ||
1575 | static void | |
1576 | jme_reset_link(struct jme_adapter *jme) | |
1577 | { | |
1578 | jwrite32(jme, JME_TMCSR, TMCSR_SWIT); | |
1579 | } | |
1580 | ||
1581 | static void | |
1582 | jme_restart_an(struct jme_adapter *jme) | |
1583 | { | |
1584 | u32 bmcr; | |
1585 | ||
1586 | spin_lock_bh(&jme->phy_lock); | |
1587 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); | |
1588 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
1589 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr); | |
1590 | spin_unlock_bh(&jme->phy_lock); | |
1591 | } | |
1592 | ||
1593 | static int | |
1594 | jme_request_irq(struct jme_adapter *jme) | |
1595 | { | |
1596 | int rc; | |
1597 | struct net_device *netdev = jme->dev; | |
1598 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18) | |
1599 | irqreturn_t (*handler)(int, void *, struct pt_regs *) = jme_intr; | |
1600 | int irq_flags = SA_SHIRQ; | |
1601 | #else | |
1602 | irq_handler_t handler = jme_intr; | |
1603 | int irq_flags = IRQF_SHARED; | |
1604 | #endif | |
1605 | ||
1606 | if (!pci_enable_msi(jme->pdev)) { | |
1607 | set_bit(JME_FLAG_MSI, &jme->flags); | |
1608 | handler = jme_msi; | |
1609 | irq_flags = 0; | |
1610 | } | |
1611 | ||
1612 | rc = request_irq(jme->pdev->irq, handler, irq_flags, netdev->name, | |
1613 | netdev); | |
1614 | if (rc) { | |
1615 | jeprintk(jme->pdev, | |
1616 | "Unable to request %s interrupt (return: %d)\n", | |
1617 | test_bit(JME_FLAG_MSI, &jme->flags) ? "MSI" : "INTx", | |
1618 | rc); | |
1619 | ||
1620 | if (test_bit(JME_FLAG_MSI, &jme->flags)) { | |
1621 | pci_disable_msi(jme->pdev); | |
1622 | clear_bit(JME_FLAG_MSI, &jme->flags); | |
1623 | } | |
1624 | } else { | |
1625 | netdev->irq = jme->pdev->irq; | |
1626 | } | |
1627 | ||
1628 | return rc; | |
1629 | } | |
1630 | ||
1631 | static void | |
1632 | jme_free_irq(struct jme_adapter *jme) | |
1633 | { | |
1634 | free_irq(jme->pdev->irq, jme->dev); | |
1635 | if (test_bit(JME_FLAG_MSI, &jme->flags)) { | |
1636 | pci_disable_msi(jme->pdev); | |
1637 | clear_bit(JME_FLAG_MSI, &jme->flags); | |
1638 | jme->dev->irq = jme->pdev->irq; | |
1639 | } | |
1640 | } | |
1641 | ||
1642 | static int | |
1643 | jme_open(struct net_device *netdev) | |
1644 | { | |
1645 | struct jme_adapter *jme = netdev_priv(netdev); | |
1646 | int rc; | |
1647 | ||
1648 | jme_clear_pm(jme); | |
1649 | JME_NAPI_ENABLE(jme); | |
1650 | ||
1651 | tasklet_enable(&jme->linkch_task); | |
1652 | tasklet_enable(&jme->txclean_task); | |
1653 | tasklet_hi_enable(&jme->rxclean_task); | |
1654 | tasklet_hi_enable(&jme->rxempty_task); | |
1655 | ||
1656 | rc = jme_request_irq(jme); | |
1657 | if (rc) | |
1658 | goto err_out; | |
1659 | ||
1660 | jme_start_irq(jme); | |
1661 | ||
1662 | if (test_bit(JME_FLAG_SSET, &jme->flags)) | |
1663 | jme_set_settings(netdev, &jme->old_ecmd); | |
1664 | else | |
1665 | jme_reset_phy_processor(jme); | |
1666 | ||
1667 | jme_reset_link(jme); | |
1668 | ||
1669 | return 0; | |
1670 | ||
1671 | err_out: | |
1672 | netif_stop_queue(netdev); | |
1673 | netif_carrier_off(netdev); | |
1674 | return rc; | |
1675 | } | |
1676 | ||
1677 | #ifdef CONFIG_PM | |
1678 | static void | |
1679 | jme_set_100m_half(struct jme_adapter *jme) | |
1680 | { | |
1681 | u32 bmcr, tmp; | |
1682 | ||
1683 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); | |
1684 | tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 | | |
1685 | BMCR_SPEED1000 | BMCR_FULLDPLX); | |
1686 | tmp |= BMCR_SPEED100; | |
1687 | ||
1688 | if (bmcr != tmp) | |
1689 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, tmp); | |
1690 | ||
1691 | if (jme->fpgaver) | |
1692 | jwrite32(jme, JME_GHC, GHC_SPEED_100M | GHC_LINK_POLL); | |
1693 | else | |
1694 | jwrite32(jme, JME_GHC, GHC_SPEED_100M); | |
1695 | } | |
1696 | ||
1697 | #define JME_WAIT_LINK_TIME 2000 /* 2000ms */ | |
1698 | static void | |
1699 | jme_wait_link(struct jme_adapter *jme) | |
1700 | { | |
1701 | u32 phylink, to = JME_WAIT_LINK_TIME; | |
1702 | ||
1703 | mdelay(1000); | |
1704 | phylink = jme_linkstat_from_phy(jme); | |
1705 | while (!(phylink & PHY_LINK_UP) && (to -= 10) > 0) { | |
1706 | mdelay(10); | |
1707 | phylink = jme_linkstat_from_phy(jme); | |
1708 | } | |
1709 | } | |
1710 | #endif | |
1711 | ||
1712 | static inline void | |
1713 | jme_phy_off(struct jme_adapter *jme) | |
1714 | { | |
1715 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, BMCR_PDOWN); | |
1716 | } | |
1717 | ||
1718 | static int | |
1719 | jme_close(struct net_device *netdev) | |
1720 | { | |
1721 | struct jme_adapter *jme = netdev_priv(netdev); | |
1722 | ||
1723 | netif_stop_queue(netdev); | |
1724 | netif_carrier_off(netdev); | |
1725 | ||
1726 | jme_stop_irq(jme); | |
1727 | jme_free_irq(jme); | |
1728 | ||
1729 | JME_NAPI_DISABLE(jme); | |
1730 | ||
1731 | tasklet_disable(&jme->linkch_task); | |
1732 | tasklet_disable(&jme->txclean_task); | |
1733 | tasklet_disable(&jme->rxclean_task); | |
1734 | tasklet_disable(&jme->rxempty_task); | |
1735 | ||
1736 | jme_reset_ghc_speed(jme); | |
1737 | jme_disable_rx_engine(jme); | |
1738 | jme_disable_tx_engine(jme); | |
1739 | jme_reset_mac_processor(jme); | |
1740 | jme_free_rx_resources(jme); | |
1741 | jme_free_tx_resources(jme); | |
1742 | jme->phylink = 0; | |
1743 | jme_phy_off(jme); | |
1744 | ||
1745 | return 0; | |
1746 | } | |
1747 | ||
1748 | static int | |
1749 | jme_alloc_txdesc(struct jme_adapter *jme, | |
1750 | struct sk_buff *skb) | |
1751 | { | |
1752 | struct jme_ring *txring = &(jme->txring[0]); | |
1753 | int idx, nr_alloc, mask = jme->tx_ring_mask; | |
1754 | ||
1755 | idx = txring->next_to_use; | |
1756 | nr_alloc = skb_shinfo(skb)->nr_frags + 2; | |
1757 | ||
1758 | if (unlikely(atomic_read(&txring->nr_free) < nr_alloc)) | |
1759 | return -1; | |
1760 | ||
1761 | atomic_sub(nr_alloc, &txring->nr_free); | |
1762 | ||
1763 | txring->next_to_use = (txring->next_to_use + nr_alloc) & mask; | |
1764 | ||
1765 | return idx; | |
1766 | } | |
1767 | ||
1768 | static void | |
1769 | jme_fill_tx_map(struct pci_dev *pdev, | |
1770 | struct txdesc *txdesc, | |
1771 | struct jme_buffer_info *txbi, | |
1772 | struct page *page, | |
1773 | u32 page_offset, | |
1774 | u32 len, | |
1775 | u8 hidma) | |
1776 | { | |
1777 | dma_addr_t dmaaddr; | |
1778 | ||
1779 | dmaaddr = pci_map_page(pdev, | |
1780 | page, | |
1781 | page_offset, | |
1782 | len, | |
1783 | PCI_DMA_TODEVICE); | |
1784 | ||
1785 | pci_dma_sync_single_for_device(pdev, | |
1786 | dmaaddr, | |
1787 | len, | |
1788 | PCI_DMA_TODEVICE); | |
1789 | ||
1790 | txdesc->dw[0] = 0; | |
1791 | txdesc->dw[1] = 0; | |
1792 | txdesc->desc2.flags = TXFLAG_OWN; | |
1793 | txdesc->desc2.flags |= (hidma) ? TXFLAG_64BIT : 0; | |
1794 | txdesc->desc2.datalen = cpu_to_le16(len); | |
1795 | txdesc->desc2.bufaddrh = cpu_to_le32((__u64)dmaaddr >> 32); | |
1796 | txdesc->desc2.bufaddrl = cpu_to_le32( | |
1797 | (__u64)dmaaddr & 0xFFFFFFFFUL); | |
1798 | ||
1799 | txbi->mapping = dmaaddr; | |
1800 | txbi->len = len; | |
1801 | } | |
1802 | ||
1803 | static void | |
1804 | jme_map_tx_skb(struct jme_adapter *jme, struct sk_buff *skb, int idx) | |
1805 | { | |
1806 | struct jme_ring *txring = &(jme->txring[0]); | |
1807 | struct txdesc *txdesc = txring->desc, *ctxdesc; | |
1808 | struct jme_buffer_info *txbi = txring->bufinf, *ctxbi; | |
1809 | u8 hidma = jme->dev->features & NETIF_F_HIGHDMA; | |
1810 | int i, nr_frags = skb_shinfo(skb)->nr_frags; | |
1811 | int mask = jme->tx_ring_mask; | |
1812 | struct skb_frag_struct *frag; | |
1813 | u32 len; | |
1814 | ||
1815 | for (i = 0 ; i < nr_frags ; ++i) { | |
1816 | frag = &skb_shinfo(skb)->frags[i]; | |
1817 | ctxdesc = txdesc + ((idx + i + 2) & (mask)); | |
1818 | ctxbi = txbi + ((idx + i + 2) & (mask)); | |
1819 | ||
1820 | jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, frag->page, | |
1821 | frag->page_offset, frag->size, hidma); | |
1822 | } | |
1823 | ||
1824 | len = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len; | |
1825 | ctxdesc = txdesc + ((idx + 1) & (mask)); | |
1826 | ctxbi = txbi + ((idx + 1) & (mask)); | |
1827 | jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, virt_to_page(skb->data), | |
1828 | offset_in_page(skb->data), len, hidma); | |
1829 | ||
1830 | } | |
1831 | ||
1832 | static int | |
1833 | jme_expand_header(struct jme_adapter *jme, struct sk_buff *skb) | |
1834 | { | |
1835 | if (unlikely( | |
1836 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,17) | |
1837 | skb_shinfo(skb)->tso_size | |
1838 | #else | |
1839 | skb_shinfo(skb)->gso_size | |
1840 | #endif | |
1841 | && skb_header_cloned(skb) && | |
1842 | pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) { | |
1843 | dev_kfree_skb(skb); | |
1844 | return -1; | |
1845 | } | |
1846 | ||
1847 | return 0; | |
1848 | } | |
1849 | ||
1850 | static int | |
1851 | jme_tx_tso(struct sk_buff *skb, __le16 *mss, u8 *flags) | |
1852 | { | |
1853 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,17) | |
1854 | *mss = cpu_to_le16(skb_shinfo(skb)->tso_size << TXDESC_MSS_SHIFT); | |
1855 | #else | |
1856 | *mss = cpu_to_le16(skb_shinfo(skb)->gso_size << TXDESC_MSS_SHIFT); | |
1857 | #endif | |
1858 | if (*mss) { | |
1859 | *flags |= TXFLAG_LSEN; | |
1860 | ||
1861 | if (skb->protocol == htons(ETH_P_IP)) { | |
1862 | struct iphdr *iph = ip_hdr(skb); | |
1863 | ||
1864 | iph->check = 0; | |
1865 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
1866 | iph->daddr, 0, | |
1867 | IPPROTO_TCP, | |
1868 | 0); | |
1869 | } else { | |
1870 | struct ipv6hdr *ip6h = ipv6_hdr(skb); | |
1871 | ||
1872 | tcp_hdr(skb)->check = ~csum_ipv6_magic(&ip6h->saddr, | |
1873 | &ip6h->daddr, 0, | |
1874 | IPPROTO_TCP, | |
1875 | 0); | |
1876 | } | |
1877 | ||
1878 | return 0; | |
1879 | } | |
1880 | ||
1881 | return 1; | |
1882 | } | |
1883 | ||
1884 | static void | |
1885 | jme_tx_csum(struct jme_adapter *jme, struct sk_buff *skb, u8 *flags) | |
1886 | { | |
1887 | #ifdef CHECKSUM_PARTIAL | |
1888 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
1889 | #else | |
1890 | if (skb->ip_summed == CHECKSUM_HW) | |
1891 | #endif | |
1892 | { | |
1893 | u8 ip_proto; | |
1894 | ||
1895 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,21) | |
1896 | if (skb->protocol == htons(ETH_P_IP)) | |
1897 | ip_proto = ip_hdr(skb)->protocol; | |
1898 | else if (skb->protocol == htons(ETH_P_IPV6)) | |
1899 | ip_proto = ipv6_hdr(skb)->nexthdr; | |
1900 | else | |
1901 | ip_proto = 0; | |
1902 | #else | |
1903 | switch (skb->protocol) { | |
1904 | case htons(ETH_P_IP): | |
1905 | ip_proto = ip_hdr(skb)->protocol; | |
1906 | break; | |
1907 | case htons(ETH_P_IPV6): | |
1908 | ip_proto = ipv6_hdr(skb)->nexthdr; | |
1909 | break; | |
1910 | default: | |
1911 | ip_proto = 0; | |
1912 | break; | |
1913 | } | |
1914 | #endif | |
1915 | ||
1916 | switch (ip_proto) { | |
1917 | case IPPROTO_TCP: | |
1918 | *flags |= TXFLAG_TCPCS; | |
1919 | break; | |
1920 | case IPPROTO_UDP: | |
1921 | *flags |= TXFLAG_UDPCS; | |
1922 | break; | |
1923 | default: | |
1924 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
1925 | msg_tx_err(jme, "Error upper layer protocol.\n"); | |
1926 | #else | |
1927 | netif_err(jme, tx_err, jme->dev, "Error upper layer protocol.\n"); | |
1928 | #endif | |
1929 | break; | |
1930 | } | |
1931 | } | |
1932 | } | |
1933 | ||
1934 | static inline void | |
1935 | jme_tx_vlan(struct sk_buff *skb, __le16 *vlan, u8 *flags) | |
1936 | { | |
1937 | if (vlan_tx_tag_present(skb)) { | |
1938 | *flags |= TXFLAG_TAGON; | |
1939 | *vlan = cpu_to_le16(vlan_tx_tag_get(skb)); | |
1940 | } | |
1941 | } | |
1942 | ||
1943 | static int | |
1944 | jme_fill_tx_desc(struct jme_adapter *jme, struct sk_buff *skb, int idx) | |
1945 | { | |
1946 | struct jme_ring *txring = &(jme->txring[0]); | |
1947 | struct txdesc *txdesc; | |
1948 | struct jme_buffer_info *txbi; | |
1949 | u8 flags; | |
1950 | ||
1951 | txdesc = (struct txdesc *)txring->desc + idx; | |
1952 | txbi = txring->bufinf + idx; | |
1953 | ||
1954 | txdesc->dw[0] = 0; | |
1955 | txdesc->dw[1] = 0; | |
1956 | txdesc->dw[2] = 0; | |
1957 | txdesc->dw[3] = 0; | |
1958 | txdesc->desc1.pktsize = cpu_to_le16(skb->len); | |
1959 | /* | |
1960 | * Set OWN bit at final. | |
1961 | * When kernel transmit faster than NIC. | |
1962 | * And NIC trying to send this descriptor before we tell | |
1963 | * it to start sending this TX queue. | |
1964 | * Other fields are already filled correctly. | |
1965 | */ | |
1966 | wmb(); | |
1967 | flags = TXFLAG_OWN | TXFLAG_INT; | |
1968 | /* | |
1969 | * Set checksum flags while not tso | |
1970 | */ | |
1971 | if (jme_tx_tso(skb, &txdesc->desc1.mss, &flags)) | |
1972 | jme_tx_csum(jme, skb, &flags); | |
1973 | jme_tx_vlan(skb, &txdesc->desc1.vlan, &flags); | |
1974 | jme_map_tx_skb(jme, skb, idx); | |
1975 | txdesc->desc1.flags = flags; | |
1976 | /* | |
1977 | * Set tx buffer info after telling NIC to send | |
1978 | * For better tx_clean timing | |
1979 | */ | |
1980 | wmb(); | |
1981 | txbi->nr_desc = skb_shinfo(skb)->nr_frags + 2; | |
1982 | txbi->skb = skb; | |
1983 | txbi->len = skb->len; | |
1984 | txbi->start_xmit = jiffies; | |
1985 | if (!txbi->start_xmit) | |
1986 | txbi->start_xmit = (0UL-1); | |
1987 | ||
1988 | return 0; | |
1989 | } | |
1990 | ||
1991 | static void | |
1992 | jme_stop_queue_if_full(struct jme_adapter *jme) | |
1993 | { | |
1994 | struct jme_ring *txring = &(jme->txring[0]); | |
1995 | struct jme_buffer_info *txbi = txring->bufinf; | |
1996 | int idx = atomic_read(&txring->next_to_clean); | |
1997 | ||
1998 | txbi += idx; | |
1999 | ||
2000 | smp_wmb(); | |
2001 | if (unlikely(atomic_read(&txring->nr_free) < (MAX_SKB_FRAGS+2))) { | |
2002 | netif_stop_queue(jme->dev); | |
2003 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
2004 | msg_tx_queued(jme, "TX Queue Paused.\n"); | |
2005 | #else | |
2006 | netif_info(jme, tx_queued, jme->dev, "TX Queue Paused.\n"); | |
2007 | #endif | |
2008 | smp_wmb(); | |
2009 | if (atomic_read(&txring->nr_free) | |
2010 | >= (jme->tx_wake_threshold)) { | |
2011 | netif_wake_queue(jme->dev); | |
2012 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
2013 | msg_tx_queued(jme, "TX Queue Fast Waked.\n"); | |
2014 | #else | |
2015 | netif_info(jme, tx_queued, jme->dev, "TX Queue Fast Waked.\n"); | |
2016 | #endif | |
2017 | } | |
2018 | } | |
2019 | ||
2020 | if (unlikely(txbi->start_xmit && | |
2021 | (jiffies - txbi->start_xmit) >= TX_TIMEOUT && | |
2022 | txbi->skb)) { | |
2023 | netif_stop_queue(jme->dev); | |
2024 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
2025 | msg_tx_queued(jme, "TX Queue Stopped %d@%lu.\n", idx, jiffies); | |
2026 | #else | |
2027 | netif_info(jme, tx_queued, jme->dev, "TX Queue Stopped %d@%lu.\n", idx, jiffies); | |
2028 | #endif | |
2029 | } | |
2030 | } | |
2031 | ||
2032 | /* | |
2033 | * This function is already protected by netif_tx_lock() | |
2034 | */ | |
2035 | ||
2036 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,31) | |
2037 | static int | |
2038 | #else | |
2039 | static netdev_tx_t | |
2040 | #endif | |
2041 | jme_start_xmit(struct sk_buff *skb, struct net_device *netdev) | |
2042 | { | |
2043 | struct jme_adapter *jme = netdev_priv(netdev); | |
2044 | int idx; | |
2045 | ||
2046 | if (unlikely(jme_expand_header(jme, skb))) { | |
2047 | ++(NET_STAT(jme).tx_dropped); | |
2048 | return NETDEV_TX_OK; | |
2049 | } | |
2050 | ||
2051 | idx = jme_alloc_txdesc(jme, skb); | |
2052 | ||
2053 | if (unlikely(idx < 0)) { | |
2054 | netif_stop_queue(netdev); | |
2055 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
2056 | msg_tx_err(jme, "BUG! Tx ring full when queue awake!\n"); | |
2057 | #else | |
2058 | netif_err(jme, tx_err, jme->dev, "BUG! Tx ring full when queue awake!\n"); | |
2059 | #endif | |
2060 | ||
2061 | return NETDEV_TX_BUSY; | |
2062 | } | |
2063 | ||
2064 | jme_fill_tx_desc(jme, skb, idx); | |
2065 | ||
2066 | jwrite32(jme, JME_TXCS, jme->reg_txcs | | |
2067 | TXCS_SELECT_QUEUE0 | | |
2068 | TXCS_QUEUE0S | | |
2069 | TXCS_ENABLE); | |
2070 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,29) | |
2071 | netdev->trans_start = jiffies; | |
2072 | #endif | |
2073 | ||
2074 | tx_dbg(jme, "xmit: %d+%d@%lu\n", idx, | |
2075 | skb_shinfo(skb)->nr_frags + 2, | |
2076 | jiffies); | |
2077 | jme_stop_queue_if_full(jme); | |
2078 | ||
2079 | return NETDEV_TX_OK; | |
2080 | } | |
2081 | ||
2082 | static int | |
2083 | jme_set_macaddr(struct net_device *netdev, void *p) | |
2084 | { | |
2085 | struct jme_adapter *jme = netdev_priv(netdev); | |
2086 | struct sockaddr *addr = p; | |
2087 | u32 val; | |
2088 | ||
2089 | if (netif_running(netdev)) | |
2090 | return -EBUSY; | |
2091 | ||
2092 | spin_lock_bh(&jme->macaddr_lock); | |
2093 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
2094 | ||
2095 | val = (addr->sa_data[3] & 0xff) << 24 | | |
2096 | (addr->sa_data[2] & 0xff) << 16 | | |
2097 | (addr->sa_data[1] & 0xff) << 8 | | |
2098 | (addr->sa_data[0] & 0xff); | |
2099 | jwrite32(jme, JME_RXUMA_LO, val); | |
2100 | val = (addr->sa_data[5] & 0xff) << 8 | | |
2101 | (addr->sa_data[4] & 0xff); | |
2102 | jwrite32(jme, JME_RXUMA_HI, val); | |
2103 | spin_unlock_bh(&jme->macaddr_lock); | |
2104 | ||
2105 | return 0; | |
2106 | } | |
2107 | ||
2108 | static void | |
2109 | jme_set_multi(struct net_device *netdev) | |
2110 | { | |
2111 | struct jme_adapter *jme = netdev_priv(netdev); | |
2112 | u32 mc_hash[2] = {}; | |
2113 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
2114 | int i; | |
2115 | #endif | |
2116 | ||
2117 | spin_lock_bh(&jme->rxmcs_lock); | |
2118 | ||
2119 | jme->reg_rxmcs |= RXMCS_BRDFRAME | RXMCS_UNIFRAME; | |
2120 | ||
2121 | if (netdev->flags & IFF_PROMISC) { | |
2122 | jme->reg_rxmcs |= RXMCS_ALLFRAME; | |
2123 | } else if (netdev->flags & IFF_ALLMULTI) { | |
2124 | jme->reg_rxmcs |= RXMCS_ALLMULFRAME; | |
2125 | } else if (netdev->flags & IFF_MULTICAST) { | |
2126 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34) | |
2127 | struct dev_mc_list *mclist; | |
2128 | #else | |
2129 | struct netdev_hw_addr *ha; | |
2130 | #endif | |
2131 | int bit_nr; | |
2132 | ||
2133 | jme->reg_rxmcs |= RXMCS_MULFRAME | RXMCS_MULFILTERED; | |
2134 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
2135 | for (i = 0, mclist = netdev->mc_list; | |
2136 | mclist && i < netdev->mc_count; | |
2137 | ++i, mclist = mclist->next) { | |
2138 | #elif LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34) | |
2139 | netdev_for_each_mc_addr(mclist, netdev) { | |
2140 | #else | |
2141 | netdev_for_each_mc_addr(ha, netdev) { | |
2142 | #endif | |
2143 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34) | |
2144 | bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) & 0x3F; | |
2145 | #else | |
2146 | bit_nr = ether_crc(ETH_ALEN, ha->addr) & 0x3F; | |
2147 | #endif | |
2148 | mc_hash[bit_nr >> 5] |= 1 << (bit_nr & 0x1F); | |
2149 | } | |
2150 | ||
2151 | jwrite32(jme, JME_RXMCHT_LO, mc_hash[0]); | |
2152 | jwrite32(jme, JME_RXMCHT_HI, mc_hash[1]); | |
2153 | } | |
2154 | ||
2155 | wmb(); | |
2156 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); | |
2157 | ||
2158 | spin_unlock_bh(&jme->rxmcs_lock); | |
2159 | } | |
2160 | ||
2161 | static int | |
2162 | jme_change_mtu(struct net_device *netdev, int new_mtu) | |
2163 | { | |
2164 | struct jme_adapter *jme = netdev_priv(netdev); | |
2165 | ||
2166 | if (new_mtu == jme->old_mtu) | |
2167 | return 0; | |
2168 | ||
2169 | if (((new_mtu + ETH_HLEN) > MAX_ETHERNET_JUMBO_PACKET_SIZE) || | |
2170 | ((new_mtu) < IPV6_MIN_MTU)) | |
2171 | return -EINVAL; | |
2172 | ||
2173 | if (new_mtu > 4000) { | |
2174 | jme->reg_rxcs &= ~RXCS_FIFOTHNP; | |
2175 | jme->reg_rxcs |= RXCS_FIFOTHNP_64QW; | |
2176 | jme_restart_rx_engine(jme); | |
2177 | } else { | |
2178 | jme->reg_rxcs &= ~RXCS_FIFOTHNP; | |
2179 | jme->reg_rxcs |= RXCS_FIFOTHNP_128QW; | |
2180 | jme_restart_rx_engine(jme); | |
2181 | } | |
2182 | ||
2183 | if (new_mtu > 1900) { | |
2184 | netdev->features &= ~(NETIF_F_HW_CSUM | | |
2185 | NETIF_F_TSO | |
2186 | #ifdef NETIF_F_TSO6 | |
2187 | | NETIF_F_TSO6 | |
2188 | #endif | |
2189 | ); | |
2190 | } else { | |
2191 | if (test_bit(JME_FLAG_TXCSUM, &jme->flags)) | |
2192 | netdev->features |= NETIF_F_HW_CSUM; | |
2193 | if (test_bit(JME_FLAG_TSO, &jme->flags)) | |
2194 | netdev->features |= NETIF_F_TSO | |
2195 | #ifdef NETIF_F_TSO6 | |
2196 | | NETIF_F_TSO6 | |
2197 | #endif | |
2198 | ; | |
2199 | } | |
2200 | ||
2201 | netdev->mtu = new_mtu; | |
2202 | jme_reset_link(jme); | |
2203 | ||
2204 | return 0; | |
2205 | } | |
2206 | ||
2207 | static void | |
2208 | jme_tx_timeout(struct net_device *netdev) | |
2209 | { | |
2210 | struct jme_adapter *jme = netdev_priv(netdev); | |
2211 | ||
2212 | jme->phylink = 0; | |
2213 | jme_reset_phy_processor(jme); | |
2214 | if (test_bit(JME_FLAG_SSET, &jme->flags)) | |
2215 | jme_set_settings(netdev, &jme->old_ecmd); | |
2216 | ||
2217 | /* | |
2218 | * Force to Reset the link again | |
2219 | */ | |
2220 | jme_reset_link(jme); | |
2221 | } | |
2222 | ||
2223 | static inline void jme_pause_rx(struct jme_adapter *jme) | |
2224 | { | |
2225 | atomic_dec(&jme->link_changing); | |
2226 | ||
2227 | jme_set_rx_pcc(jme, PCC_OFF); | |
2228 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2229 | JME_NAPI_DISABLE(jme); | |
2230 | } else { | |
2231 | tasklet_disable(&jme->rxclean_task); | |
2232 | tasklet_disable(&jme->rxempty_task); | |
2233 | } | |
2234 | } | |
2235 | ||
2236 | static inline void jme_resume_rx(struct jme_adapter *jme) | |
2237 | { | |
2238 | struct dynpcc_info *dpi = &(jme->dpi); | |
2239 | ||
2240 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2241 | JME_NAPI_ENABLE(jme); | |
2242 | } else { | |
2243 | tasklet_hi_enable(&jme->rxclean_task); | |
2244 | tasklet_hi_enable(&jme->rxempty_task); | |
2245 | } | |
2246 | dpi->cur = PCC_P1; | |
2247 | dpi->attempt = PCC_P1; | |
2248 | dpi->cnt = 0; | |
2249 | jme_set_rx_pcc(jme, PCC_P1); | |
2250 | ||
2251 | atomic_inc(&jme->link_changing); | |
2252 | } | |
2253 | ||
2254 | static void | |
2255 | jme_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp) | |
2256 | { | |
2257 | struct jme_adapter *jme = netdev_priv(netdev); | |
2258 | ||
2259 | jme_pause_rx(jme); | |
2260 | jme->vlgrp = grp; | |
2261 | jme_resume_rx(jme); | |
2262 | } | |
2263 | ||
2264 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,21) | |
2265 | static void | |
2266 | jme_vlan_rx_kill_vid(struct net_device *netdev, unsigned short vid) | |
2267 | { | |
2268 | struct jme_adapter *jme = netdev_priv(netdev); | |
2269 | ||
2270 | if(jme->vlgrp) { | |
2271 | jme_pause_rx(jme); | |
2272 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,20) | |
2273 | jme->vlgrp->vlan_devices[vid] = NULL; | |
2274 | #else | |
2275 | vlan_group_set_device(jme->vlgrp, vid, NULL); | |
2276 | #endif | |
2277 | jme_resume_rx(jme); | |
2278 | } | |
2279 | } | |
2280 | #endif | |
2281 | ||
2282 | static void | |
2283 | jme_get_drvinfo(struct net_device *netdev, | |
2284 | struct ethtool_drvinfo *info) | |
2285 | { | |
2286 | struct jme_adapter *jme = netdev_priv(netdev); | |
2287 | ||
2288 | strcpy(info->driver, DRV_NAME); | |
2289 | strcpy(info->version, DRV_VERSION); | |
2290 | strcpy(info->bus_info, pci_name(jme->pdev)); | |
2291 | } | |
2292 | ||
2293 | static int | |
2294 | jme_get_regs_len(struct net_device *netdev) | |
2295 | { | |
2296 | return JME_REG_LEN; | |
2297 | } | |
2298 | ||
2299 | static void | |
2300 | mmapio_memcpy(struct jme_adapter *jme, u32 *p, u32 reg, int len) | |
2301 | { | |
2302 | int i; | |
2303 | ||
2304 | for (i = 0 ; i < len ; i += 4) | |
2305 | p[i >> 2] = jread32(jme, reg + i); | |
2306 | } | |
2307 | ||
2308 | static void | |
2309 | mdio_memcpy(struct jme_adapter *jme, u32 *p, int reg_nr) | |
2310 | { | |
2311 | int i; | |
2312 | u16 *p16 = (u16 *)p; | |
2313 | ||
2314 | for (i = 0 ; i < reg_nr ; ++i) | |
2315 | p16[i] = jme_mdio_read(jme->dev, jme->mii_if.phy_id, i); | |
2316 | } | |
2317 | ||
2318 | static void | |
2319 | jme_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) | |
2320 | { | |
2321 | struct jme_adapter *jme = netdev_priv(netdev); | |
2322 | u32 *p32 = (u32 *)p; | |
2323 | ||
2324 | memset(p, 0xFF, JME_REG_LEN); | |
2325 | ||
2326 | regs->version = 1; | |
2327 | mmapio_memcpy(jme, p32, JME_MAC, JME_MAC_LEN); | |
2328 | ||
2329 | p32 += 0x100 >> 2; | |
2330 | mmapio_memcpy(jme, p32, JME_PHY, JME_PHY_LEN); | |
2331 | ||
2332 | p32 += 0x100 >> 2; | |
2333 | mmapio_memcpy(jme, p32, JME_MISC, JME_MISC_LEN); | |
2334 | ||
2335 | p32 += 0x100 >> 2; | |
2336 | mmapio_memcpy(jme, p32, JME_RSS, JME_RSS_LEN); | |
2337 | ||
2338 | p32 += 0x100 >> 2; | |
2339 | mdio_memcpy(jme, p32, JME_PHY_REG_NR); | |
2340 | } | |
2341 | ||
2342 | static int | |
2343 | jme_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) | |
2344 | { | |
2345 | struct jme_adapter *jme = netdev_priv(netdev); | |
2346 | ||
2347 | ecmd->tx_coalesce_usecs = PCC_TX_TO; | |
2348 | ecmd->tx_max_coalesced_frames = PCC_TX_CNT; | |
2349 | ||
2350 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2351 | ecmd->use_adaptive_rx_coalesce = false; | |
2352 | ecmd->rx_coalesce_usecs = 0; | |
2353 | ecmd->rx_max_coalesced_frames = 0; | |
2354 | return 0; | |
2355 | } | |
2356 | ||
2357 | ecmd->use_adaptive_rx_coalesce = true; | |
2358 | ||
2359 | switch (jme->dpi.cur) { | |
2360 | case PCC_P1: | |
2361 | ecmd->rx_coalesce_usecs = PCC_P1_TO; | |
2362 | ecmd->rx_max_coalesced_frames = PCC_P1_CNT; | |
2363 | break; | |
2364 | case PCC_P2: | |
2365 | ecmd->rx_coalesce_usecs = PCC_P2_TO; | |
2366 | ecmd->rx_max_coalesced_frames = PCC_P2_CNT; | |
2367 | break; | |
2368 | case PCC_P3: | |
2369 | ecmd->rx_coalesce_usecs = PCC_P3_TO; | |
2370 | ecmd->rx_max_coalesced_frames = PCC_P3_CNT; | |
2371 | break; | |
2372 | default: | |
2373 | break; | |
2374 | } | |
2375 | ||
2376 | return 0; | |
2377 | } | |
2378 | ||
2379 | static int | |
2380 | jme_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) | |
2381 | { | |
2382 | struct jme_adapter *jme = netdev_priv(netdev); | |
2383 | struct dynpcc_info *dpi = &(jme->dpi); | |
2384 | ||
2385 | if (netif_running(netdev)) | |
2386 | return -EBUSY; | |
2387 | ||
2388 | if (ecmd->use_adaptive_rx_coalesce && | |
2389 | test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2390 | clear_bit(JME_FLAG_POLL, &jme->flags); | |
2391 | jme->jme_rx = netif_rx; | |
2392 | jme->jme_vlan_rx = vlan_hwaccel_rx; | |
2393 | dpi->cur = PCC_P1; | |
2394 | dpi->attempt = PCC_P1; | |
2395 | dpi->cnt = 0; | |
2396 | jme_set_rx_pcc(jme, PCC_P1); | |
2397 | jme_interrupt_mode(jme); | |
2398 | } else if (!(ecmd->use_adaptive_rx_coalesce) && | |
2399 | !(test_bit(JME_FLAG_POLL, &jme->flags))) { | |
2400 | set_bit(JME_FLAG_POLL, &jme->flags); | |
2401 | jme->jme_rx = netif_receive_skb; | |
2402 | jme->jme_vlan_rx = vlan_hwaccel_receive_skb; | |
2403 | jme_interrupt_mode(jme); | |
2404 | } | |
2405 | ||
2406 | return 0; | |
2407 | } | |
2408 | ||
2409 | static void | |
2410 | jme_get_pauseparam(struct net_device *netdev, | |
2411 | struct ethtool_pauseparam *ecmd) | |
2412 | { | |
2413 | struct jme_adapter *jme = netdev_priv(netdev); | |
2414 | u32 val; | |
2415 | ||
2416 | ecmd->tx_pause = (jme->reg_txpfc & TXPFC_PF_EN) != 0; | |
2417 | ecmd->rx_pause = (jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0; | |
2418 | ||
2419 | spin_lock_bh(&jme->phy_lock); | |
2420 | val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); | |
2421 | spin_unlock_bh(&jme->phy_lock); | |
2422 | ||
2423 | ecmd->autoneg = | |
2424 | (val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0; | |
2425 | } | |
2426 | ||
2427 | static int | |
2428 | jme_set_pauseparam(struct net_device *netdev, | |
2429 | struct ethtool_pauseparam *ecmd) | |
2430 | { | |
2431 | struct jme_adapter *jme = netdev_priv(netdev); | |
2432 | u32 val; | |
2433 | ||
2434 | if (((jme->reg_txpfc & TXPFC_PF_EN) != 0) ^ | |
2435 | (ecmd->tx_pause != 0)) { | |
2436 | ||
2437 | if (ecmd->tx_pause) | |
2438 | jme->reg_txpfc |= TXPFC_PF_EN; | |
2439 | else | |
2440 | jme->reg_txpfc &= ~TXPFC_PF_EN; | |
2441 | ||
2442 | jwrite32(jme, JME_TXPFC, jme->reg_txpfc); | |
2443 | } | |
2444 | ||
2445 | spin_lock_bh(&jme->rxmcs_lock); | |
2446 | if (((jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0) ^ | |
2447 | (ecmd->rx_pause != 0)) { | |
2448 | ||
2449 | if (ecmd->rx_pause) | |
2450 | jme->reg_rxmcs |= RXMCS_FLOWCTRL; | |
2451 | else | |
2452 | jme->reg_rxmcs &= ~RXMCS_FLOWCTRL; | |
2453 | ||
2454 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); | |
2455 | } | |
2456 | spin_unlock_bh(&jme->rxmcs_lock); | |
2457 | ||
2458 | spin_lock_bh(&jme->phy_lock); | |
2459 | val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); | |
2460 | if (((val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0) ^ | |
2461 | (ecmd->autoneg != 0)) { | |
2462 | ||
2463 | if (ecmd->autoneg) | |
2464 | val |= (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
2465 | else | |
2466 | val &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
2467 | ||
2468 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, | |
2469 | MII_ADVERTISE, val); | |
2470 | } | |
2471 | spin_unlock_bh(&jme->phy_lock); | |
2472 | ||
2473 | return 0; | |
2474 | } | |
2475 | ||
2476 | static void | |
2477 | jme_get_wol(struct net_device *netdev, | |
2478 | struct ethtool_wolinfo *wol) | |
2479 | { | |
2480 | struct jme_adapter *jme = netdev_priv(netdev); | |
2481 | ||
2482 | wol->supported = WAKE_MAGIC | WAKE_PHY; | |
2483 | ||
2484 | wol->wolopts = 0; | |
2485 | ||
2486 | if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) | |
2487 | wol->wolopts |= WAKE_PHY; | |
2488 | ||
2489 | if (jme->reg_pmcs & PMCS_MFEN) | |
2490 | wol->wolopts |= WAKE_MAGIC; | |
2491 | ||
2492 | } | |
2493 | ||
2494 | static int | |
2495 | jme_set_wol(struct net_device *netdev, | |
2496 | struct ethtool_wolinfo *wol) | |
2497 | { | |
2498 | struct jme_adapter *jme = netdev_priv(netdev); | |
2499 | ||
2500 | if (wol->wolopts & (WAKE_MAGICSECURE | | |
2501 | WAKE_UCAST | | |
2502 | WAKE_MCAST | | |
2503 | WAKE_BCAST | | |
2504 | WAKE_ARP)) | |
2505 | return -EOPNOTSUPP; | |
2506 | ||
2507 | jme->reg_pmcs = 0; | |
2508 | ||
2509 | if (wol->wolopts & WAKE_PHY) | |
2510 | jme->reg_pmcs |= PMCS_LFEN | PMCS_LREN; | |
2511 | ||
2512 | if (wol->wolopts & WAKE_MAGIC) | |
2513 | jme->reg_pmcs |= PMCS_MFEN; | |
2514 | ||
2515 | jwrite32(jme, JME_PMCS, jme->reg_pmcs); | |
2516 | ||
2517 | return 0; | |
2518 | } | |
2519 | ||
2520 | static int | |
2521 | jme_get_settings(struct net_device *netdev, | |
2522 | struct ethtool_cmd *ecmd) | |
2523 | { | |
2524 | struct jme_adapter *jme = netdev_priv(netdev); | |
2525 | int rc; | |
2526 | ||
2527 | spin_lock_bh(&jme->phy_lock); | |
2528 | rc = mii_ethtool_gset(&(jme->mii_if), ecmd); | |
2529 | spin_unlock_bh(&jme->phy_lock); | |
2530 | return rc; | |
2531 | } | |
2532 | ||
2533 | static int | |
2534 | jme_set_settings(struct net_device *netdev, | |
2535 | struct ethtool_cmd *ecmd) | |
2536 | { | |
2537 | struct jme_adapter *jme = netdev_priv(netdev); | |
2538 | int rc, fdc = 0; | |
2539 | ||
2540 | if (ecmd->speed == SPEED_1000 && ecmd->autoneg != AUTONEG_ENABLE) | |
2541 | return -EINVAL; | |
2542 | ||
2543 | if (jme->mii_if.force_media && | |
2544 | ecmd->autoneg != AUTONEG_ENABLE && | |
2545 | (jme->mii_if.full_duplex != ecmd->duplex)) | |
2546 | fdc = 1; | |
2547 | ||
2548 | spin_lock_bh(&jme->phy_lock); | |
2549 | rc = mii_ethtool_sset(&(jme->mii_if), ecmd); | |
2550 | spin_unlock_bh(&jme->phy_lock); | |
2551 | ||
2552 | if (!rc && fdc) | |
2553 | jme_reset_link(jme); | |
2554 | ||
2555 | if (!rc) { | |
2556 | set_bit(JME_FLAG_SSET, &jme->flags); | |
2557 | jme->old_ecmd = *ecmd; | |
2558 | } | |
2559 | ||
2560 | return rc; | |
2561 | } | |
2562 | ||
2563 | static u32 | |
2564 | jme_get_link(struct net_device *netdev) | |
2565 | { | |
2566 | struct jme_adapter *jme = netdev_priv(netdev); | |
2567 | return jread32(jme, JME_PHY_LINK) & PHY_LINK_UP; | |
2568 | } | |
2569 | ||
2570 | static u32 | |
2571 | jme_get_msglevel(struct net_device *netdev) | |
2572 | { | |
2573 | struct jme_adapter *jme = netdev_priv(netdev); | |
2574 | return jme->msg_enable; | |
2575 | } | |
2576 | ||
2577 | static void | |
2578 | jme_set_msglevel(struct net_device *netdev, u32 value) | |
2579 | { | |
2580 | struct jme_adapter *jme = netdev_priv(netdev); | |
2581 | jme->msg_enable = value; | |
2582 | } | |
2583 | ||
2584 | static u32 | |
2585 | jme_get_rx_csum(struct net_device *netdev) | |
2586 | { | |
2587 | struct jme_adapter *jme = netdev_priv(netdev); | |
2588 | return jme->reg_rxmcs & RXMCS_CHECKSUM; | |
2589 | } | |
2590 | ||
2591 | static int | |
2592 | jme_set_rx_csum(struct net_device *netdev, u32 on) | |
2593 | { | |
2594 | struct jme_adapter *jme = netdev_priv(netdev); | |
2595 | ||
2596 | spin_lock_bh(&jme->rxmcs_lock); | |
2597 | if (on) | |
2598 | jme->reg_rxmcs |= RXMCS_CHECKSUM; | |
2599 | else | |
2600 | jme->reg_rxmcs &= ~RXMCS_CHECKSUM; | |
2601 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); | |
2602 | spin_unlock_bh(&jme->rxmcs_lock); | |
2603 | ||
2604 | return 0; | |
2605 | } | |
2606 | ||
2607 | static int | |
2608 | jme_set_tx_csum(struct net_device *netdev, u32 on) | |
2609 | { | |
2610 | struct jme_adapter *jme = netdev_priv(netdev); | |
2611 | ||
2612 | if (on) { | |
2613 | set_bit(JME_FLAG_TXCSUM, &jme->flags); | |
2614 | if (netdev->mtu <= 1900) | |
2615 | netdev->features |= NETIF_F_HW_CSUM; | |
2616 | } else { | |
2617 | clear_bit(JME_FLAG_TXCSUM, &jme->flags); | |
2618 | netdev->features &= ~NETIF_F_HW_CSUM; | |
2619 | } | |
2620 | ||
2621 | return 0; | |
2622 | } | |
2623 | ||
2624 | static int | |
2625 | jme_set_tso(struct net_device *netdev, u32 on) | |
2626 | { | |
2627 | struct jme_adapter *jme = netdev_priv(netdev); | |
2628 | ||
2629 | if (on) { | |
2630 | set_bit(JME_FLAG_TSO, &jme->flags); | |
2631 | if (netdev->mtu <= 1900) | |
2632 | netdev->features |= NETIF_F_TSO | |
2633 | #ifdef NETIF_F_TSO6 | |
2634 | | NETIF_F_TSO6 | |
2635 | #endif | |
2636 | ; | |
2637 | } else { | |
2638 | clear_bit(JME_FLAG_TSO, &jme->flags); | |
2639 | netdev->features &= ~(NETIF_F_TSO | |
2640 | #ifdef NETIF_F_TSO6 | |
2641 | | NETIF_F_TSO6 | |
2642 | #endif | |
2643 | ); | |
2644 | } | |
2645 | ||
2646 | return 0; | |
2647 | } | |
2648 | ||
2649 | static int | |
2650 | jme_nway_reset(struct net_device *netdev) | |
2651 | { | |
2652 | struct jme_adapter *jme = netdev_priv(netdev); | |
2653 | jme_restart_an(jme); | |
2654 | return 0; | |
2655 | } | |
2656 | ||
2657 | static u8 | |
2658 | jme_smb_read(struct jme_adapter *jme, unsigned int addr) | |
2659 | { | |
2660 | u32 val; | |
2661 | int to; | |
2662 | ||
2663 | val = jread32(jme, JME_SMBCSR); | |
2664 | to = JME_SMB_BUSY_TIMEOUT; | |
2665 | while ((val & SMBCSR_BUSY) && --to) { | |
2666 | msleep(1); | |
2667 | val = jread32(jme, JME_SMBCSR); | |
2668 | } | |
2669 | if (!to) { | |
2670 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
2671 | msg_hw(jme, "SMB Bus Busy.\n"); | |
2672 | #else | |
2673 | netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n"); | |
2674 | #endif | |
2675 | return 0xFF; | |
2676 | } | |
2677 | ||
2678 | jwrite32(jme, JME_SMBINTF, | |
2679 | ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | | |
2680 | SMBINTF_HWRWN_READ | | |
2681 | SMBINTF_HWCMD); | |
2682 | ||
2683 | val = jread32(jme, JME_SMBINTF); | |
2684 | to = JME_SMB_BUSY_TIMEOUT; | |
2685 | while ((val & SMBINTF_HWCMD) && --to) { | |
2686 | msleep(1); | |
2687 | val = jread32(jme, JME_SMBINTF); | |
2688 | } | |
2689 | if (!to) { | |
2690 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
2691 | msg_hw(jme, "SMB Bus Busy.\n"); | |
2692 | #else | |
2693 | netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n"); | |
2694 | #endif | |
2695 | return 0xFF; | |
2696 | } | |
2697 | ||
2698 | return (val & SMBINTF_HWDATR) >> SMBINTF_HWDATR_SHIFT; | |
2699 | } | |
2700 | ||
2701 | static void | |
2702 | jme_smb_write(struct jme_adapter *jme, unsigned int addr, u8 data) | |
2703 | { | |
2704 | u32 val; | |
2705 | int to; | |
2706 | ||
2707 | val = jread32(jme, JME_SMBCSR); | |
2708 | to = JME_SMB_BUSY_TIMEOUT; | |
2709 | while ((val & SMBCSR_BUSY) && --to) { | |
2710 | msleep(1); | |
2711 | val = jread32(jme, JME_SMBCSR); | |
2712 | } | |
2713 | if (!to) { | |
2714 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
2715 | msg_hw(jme, "SMB Bus Busy.\n"); | |
2716 | #else | |
2717 | netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n"); | |
2718 | #endif | |
2719 | return; | |
2720 | } | |
2721 | ||
2722 | jwrite32(jme, JME_SMBINTF, | |
2723 | ((data << SMBINTF_HWDATW_SHIFT) & SMBINTF_HWDATW) | | |
2724 | ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | | |
2725 | SMBINTF_HWRWN_WRITE | | |
2726 | SMBINTF_HWCMD); | |
2727 | ||
2728 | val = jread32(jme, JME_SMBINTF); | |
2729 | to = JME_SMB_BUSY_TIMEOUT; | |
2730 | while ((val & SMBINTF_HWCMD) && --to) { | |
2731 | msleep(1); | |
2732 | val = jread32(jme, JME_SMBINTF); | |
2733 | } | |
2734 | if (!to) { | |
2735 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
2736 | msg_hw(jme, "SMB Bus Busy.\n"); | |
2737 | #else | |
2738 | netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n"); | |
2739 | #endif | |
2740 | return; | |
2741 | } | |
2742 | ||
2743 | mdelay(2); | |
2744 | } | |
2745 | ||
2746 | static int | |
2747 | jme_get_eeprom_len(struct net_device *netdev) | |
2748 | { | |
2749 | struct jme_adapter *jme = netdev_priv(netdev); | |
2750 | u32 val; | |
2751 | val = jread32(jme, JME_SMBCSR); | |
2752 | return (val & SMBCSR_EEPROMD) ? JME_SMB_LEN : 0; | |
2753 | } | |
2754 | ||
2755 | static int | |
2756 | jme_get_eeprom(struct net_device *netdev, | |
2757 | struct ethtool_eeprom *eeprom, u8 *data) | |
2758 | { | |
2759 | struct jme_adapter *jme = netdev_priv(netdev); | |
2760 | int i, offset = eeprom->offset, len = eeprom->len; | |
2761 | ||
2762 | /* | |
2763 | * ethtool will check the boundary for us | |
2764 | */ | |
2765 | eeprom->magic = JME_EEPROM_MAGIC; | |
2766 | for (i = 0 ; i < len ; ++i) | |
2767 | data[i] = jme_smb_read(jme, i + offset); | |
2768 | ||
2769 | return 0; | |
2770 | } | |
2771 | ||
2772 | static int | |
2773 | jme_set_eeprom(struct net_device *netdev, | |
2774 | struct ethtool_eeprom *eeprom, u8 *data) | |
2775 | { | |
2776 | struct jme_adapter *jme = netdev_priv(netdev); | |
2777 | int i, offset = eeprom->offset, len = eeprom->len; | |
2778 | ||
2779 | if (eeprom->magic != JME_EEPROM_MAGIC) | |
2780 | return -EINVAL; | |
2781 | ||
2782 | /* | |
2783 | * ethtool will check the boundary for us | |
2784 | */ | |
2785 | for (i = 0 ; i < len ; ++i) | |
2786 | jme_smb_write(jme, i + offset, data[i]); | |
2787 | ||
2788 | return 0; | |
2789 | } | |
2790 | ||
2791 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18) | |
2792 | static struct ethtool_ops jme_ethtool_ops = { | |
2793 | #else | |
2794 | static const struct ethtool_ops jme_ethtool_ops = { | |
2795 | #endif | |
2796 | .get_drvinfo = jme_get_drvinfo, | |
2797 | .get_regs_len = jme_get_regs_len, | |
2798 | .get_regs = jme_get_regs, | |
2799 | .get_coalesce = jme_get_coalesce, | |
2800 | .set_coalesce = jme_set_coalesce, | |
2801 | .get_pauseparam = jme_get_pauseparam, | |
2802 | .set_pauseparam = jme_set_pauseparam, | |
2803 | .get_wol = jme_get_wol, | |
2804 | .set_wol = jme_set_wol, | |
2805 | .get_settings = jme_get_settings, | |
2806 | .set_settings = jme_set_settings, | |
2807 | .get_link = jme_get_link, | |
2808 | .get_msglevel = jme_get_msglevel, | |
2809 | .set_msglevel = jme_set_msglevel, | |
2810 | .get_rx_csum = jme_get_rx_csum, | |
2811 | .set_rx_csum = jme_set_rx_csum, | |
2812 | .set_tx_csum = jme_set_tx_csum, | |
2813 | .set_tso = jme_set_tso, | |
2814 | .set_sg = ethtool_op_set_sg, | |
2815 | .nway_reset = jme_nway_reset, | |
2816 | .get_eeprom_len = jme_get_eeprom_len, | |
2817 | .get_eeprom = jme_get_eeprom, | |
2818 | .set_eeprom = jme_set_eeprom, | |
2819 | }; | |
2820 | ||
2821 | static int | |
2822 | jme_pci_dma64(struct pci_dev *pdev) | |
2823 | { | |
2824 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && | |
2825 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29) | |
2826 | !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) | |
2827 | #else | |
2828 | !pci_set_dma_mask(pdev, DMA_64BIT_MASK) | |
2829 | #endif | |
2830 | ) | |
2831 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29) | |
2832 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) | |
2833 | #else | |
2834 | if (!pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) | |
2835 | #endif | |
2836 | return 1; | |
2837 | ||
2838 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && | |
2839 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29) | |
2840 | !pci_set_dma_mask(pdev, DMA_BIT_MASK(40)) | |
2841 | #else | |
2842 | !pci_set_dma_mask(pdev, DMA_40BIT_MASK) | |
2843 | #endif | |
2844 | ) | |
2845 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29) | |
2846 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40))) | |
2847 | #else | |
2848 | if (!pci_set_consistent_dma_mask(pdev, DMA_40BIT_MASK)) | |
2849 | #endif | |
2850 | return 1; | |
2851 | ||
2852 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29) | |
2853 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) | |
2854 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) | |
2855 | #else | |
2856 | if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)) | |
2857 | if (!pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) | |
2858 | #endif | |
2859 | return 0; | |
2860 | ||
2861 | return -1; | |
2862 | } | |
2863 | ||
2864 | static inline void | |
2865 | jme_phy_init(struct jme_adapter *jme) | |
2866 | { | |
2867 | u16 reg26; | |
2868 | ||
2869 | reg26 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 26); | |
2870 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 26, reg26 | 0x1000); | |
2871 | } | |
2872 | ||
2873 | static inline void | |
2874 | jme_check_hw_ver(struct jme_adapter *jme) | |
2875 | { | |
2876 | u32 chipmode; | |
2877 | ||
2878 | chipmode = jread32(jme, JME_CHIPMODE); | |
2879 | ||
2880 | jme->fpgaver = (chipmode & CM_FPGAVER_MASK) >> CM_FPGAVER_SHIFT; | |
2881 | jme->chiprev = (chipmode & CM_CHIPREV_MASK) >> CM_CHIPREV_SHIFT; | |
2882 | } | |
2883 | ||
2884 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29) | |
2885 | static const struct net_device_ops jme_netdev_ops = { | |
2886 | .ndo_open = jme_open, | |
2887 | .ndo_stop = jme_close, | |
2888 | .ndo_validate_addr = eth_validate_addr, | |
2889 | .ndo_start_xmit = jme_start_xmit, | |
2890 | .ndo_set_mac_address = jme_set_macaddr, | |
2891 | .ndo_set_multicast_list = jme_set_multi, | |
2892 | .ndo_change_mtu = jme_change_mtu, | |
2893 | .ndo_tx_timeout = jme_tx_timeout, | |
2894 | .ndo_vlan_rx_register = jme_vlan_rx_register, | |
2895 | }; | |
2896 | #endif | |
2897 | ||
2898 | static int __devinit | |
2899 | jme_init_one(struct pci_dev *pdev, | |
2900 | const struct pci_device_id *ent) | |
2901 | { | |
2902 | int rc = 0, using_dac, i; | |
2903 | struct net_device *netdev; | |
2904 | struct jme_adapter *jme; | |
2905 | u16 bmcr, bmsr; | |
2906 | u32 apmc; | |
2907 | ||
2908 | /* | |
2909 | * set up PCI device basics | |
2910 | */ | |
2911 | rc = pci_enable_device(pdev); | |
2912 | if (rc) { | |
2913 | jeprintk(pdev, "Cannot enable PCI device.\n"); | |
2914 | goto err_out; | |
2915 | } | |
2916 | ||
2917 | using_dac = jme_pci_dma64(pdev); | |
2918 | if (using_dac < 0) { | |
2919 | jeprintk(pdev, "Cannot set PCI DMA Mask.\n"); | |
2920 | rc = -EIO; | |
2921 | goto err_out_disable_pdev; | |
2922 | } | |
2923 | ||
2924 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
2925 | jeprintk(pdev, "No PCI resource region found.\n"); | |
2926 | rc = -ENOMEM; | |
2927 | goto err_out_disable_pdev; | |
2928 | } | |
2929 | ||
2930 | rc = pci_request_regions(pdev, DRV_NAME); | |
2931 | if (rc) { | |
2932 | jeprintk(pdev, "Cannot obtain PCI resource region.\n"); | |
2933 | goto err_out_disable_pdev; | |
2934 | } | |
2935 | ||
2936 | pci_set_master(pdev); | |
2937 | ||
2938 | /* | |
2939 | * alloc and init net device | |
2940 | */ | |
2941 | netdev = alloc_etherdev(sizeof(*jme)); | |
2942 | if (!netdev) { | |
2943 | jeprintk(pdev, "Cannot allocate netdev structure.\n"); | |
2944 | rc = -ENOMEM; | |
2945 | goto err_out_release_regions; | |
2946 | } | |
2947 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29) | |
2948 | netdev->netdev_ops = &jme_netdev_ops; | |
2949 | #else | |
2950 | netdev->open = jme_open; | |
2951 | netdev->stop = jme_close; | |
2952 | netdev->hard_start_xmit = jme_start_xmit; | |
2953 | netdev->set_mac_address = jme_set_macaddr; | |
2954 | netdev->set_multicast_list = jme_set_multi; | |
2955 | netdev->change_mtu = jme_change_mtu; | |
2956 | netdev->tx_timeout = jme_tx_timeout; | |
2957 | netdev->vlan_rx_register = jme_vlan_rx_register; | |
2958 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,21) | |
2959 | netdev->vlan_rx_kill_vid = jme_vlan_rx_kill_vid; | |
2960 | #endif | |
2961 | NETDEV_GET_STATS(netdev, &jme_get_stats); | |
2962 | #endif | |
2963 | netdev->ethtool_ops = &jme_ethtool_ops; | |
2964 | netdev->watchdog_timeo = TX_TIMEOUT; | |
2965 | netdev->features = NETIF_F_HW_CSUM | | |
2966 | NETIF_F_SG | | |
2967 | NETIF_F_TSO | | |
2968 | #ifdef NETIF_F_TSO6 | |
2969 | NETIF_F_TSO6 | | |
2970 | #endif | |
2971 | NETIF_F_HW_VLAN_TX | | |
2972 | NETIF_F_HW_VLAN_RX; | |
2973 | if (using_dac) | |
2974 | netdev->features |= NETIF_F_HIGHDMA; | |
2975 | ||
2976 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
2977 | pci_set_drvdata(pdev, netdev); | |
2978 | ||
2979 | /* | |
2980 | * init adapter info | |
2981 | */ | |
2982 | jme = netdev_priv(netdev); | |
2983 | jme->pdev = pdev; | |
2984 | jme->dev = netdev; | |
2985 | jme->jme_rx = netif_rx; | |
2986 | jme->jme_vlan_rx = vlan_hwaccel_rx; | |
2987 | jme->old_mtu = netdev->mtu = 1500; | |
2988 | jme->phylink = 0; | |
2989 | jme->tx_ring_size = 1 << 10; | |
2990 | jme->tx_ring_mask = jme->tx_ring_size - 1; | |
2991 | jme->tx_wake_threshold = 1 << 9; | |
2992 | jme->rx_ring_size = 1 << 9; | |
2993 | jme->rx_ring_mask = jme->rx_ring_size - 1; | |
2994 | jme->msg_enable = JME_DEF_MSG_ENABLE; | |
2995 | jme->regs = ioremap(pci_resource_start(pdev, 0), | |
2996 | pci_resource_len(pdev, 0)); | |
2997 | if (!(jme->regs)) { | |
2998 | jeprintk(pdev, "Mapping PCI resource region error.\n"); | |
2999 | rc = -ENOMEM; | |
3000 | goto err_out_free_netdev; | |
3001 | } | |
3002 | ||
3003 | if (no_pseudohp) { | |
3004 | apmc = jread32(jme, JME_APMC) & ~JME_APMC_PSEUDO_HP_EN; | |
3005 | jwrite32(jme, JME_APMC, apmc); | |
3006 | } else if (force_pseudohp) { | |
3007 | apmc = jread32(jme, JME_APMC) | JME_APMC_PSEUDO_HP_EN; | |
3008 | jwrite32(jme, JME_APMC, apmc); | |
3009 | } | |
3010 | ||
3011 | NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, jme->rx_ring_size >> 2) | |
3012 | ||
3013 | spin_lock_init(&jme->phy_lock); | |
3014 | spin_lock_init(&jme->macaddr_lock); | |
3015 | spin_lock_init(&jme->rxmcs_lock); | |
3016 | ||
3017 | atomic_set(&jme->link_changing, 1); | |
3018 | atomic_set(&jme->rx_cleaning, 1); | |
3019 | atomic_set(&jme->tx_cleaning, 1); | |
3020 | atomic_set(&jme->rx_empty, 1); | |
3021 | ||
3022 | tasklet_init(&jme->pcc_task, | |
3023 | jme_pcc_tasklet, | |
3024 | (unsigned long) jme); | |
3025 | tasklet_init(&jme->linkch_task, | |
3026 | jme_link_change_tasklet, | |
3027 | (unsigned long) jme); | |
3028 | tasklet_init(&jme->txclean_task, | |
3029 | jme_tx_clean_tasklet, | |
3030 | (unsigned long) jme); | |
3031 | tasklet_init(&jme->rxclean_task, | |
3032 | jme_rx_clean_tasklet, | |
3033 | (unsigned long) jme); | |
3034 | tasklet_init(&jme->rxempty_task, | |
3035 | jme_rx_empty_tasklet, | |
3036 | (unsigned long) jme); | |
3037 | tasklet_disable_nosync(&jme->linkch_task); | |
3038 | tasklet_disable_nosync(&jme->txclean_task); | |
3039 | tasklet_disable_nosync(&jme->rxclean_task); | |
3040 | tasklet_disable_nosync(&jme->rxempty_task); | |
3041 | jme->dpi.cur = PCC_P1; | |
3042 | ||
3043 | jme->reg_ghc = 0; | |
3044 | jme->reg_rxcs = RXCS_DEFAULT; | |
3045 | jme->reg_rxmcs = RXMCS_DEFAULT; | |
3046 | jme->reg_txpfc = 0; | |
3047 | jme->reg_pmcs = PMCS_MFEN; | |
3048 | set_bit(JME_FLAG_TXCSUM, &jme->flags); | |
3049 | set_bit(JME_FLAG_TSO, &jme->flags); | |
3050 | ||
3051 | /* | |
3052 | * Get Max Read Req Size from PCI Config Space | |
3053 | */ | |
3054 | pci_read_config_byte(pdev, PCI_DCSR_MRRS, &jme->mrrs); | |
3055 | jme->mrrs &= PCI_DCSR_MRRS_MASK; | |
3056 | switch (jme->mrrs) { | |
3057 | case MRRS_128B: | |
3058 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_128B; | |
3059 | break; | |
3060 | case MRRS_256B: | |
3061 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_256B; | |
3062 | break; | |
3063 | default: | |
3064 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_512B; | |
3065 | break; | |
3066 | } | |
3067 | ||
3068 | /* | |
3069 | * Must check before reset_mac_processor | |
3070 | */ | |
3071 | jme_check_hw_ver(jme); | |
3072 | jme->mii_if.dev = netdev; | |
3073 | if (jme->fpgaver) { | |
3074 | jme->mii_if.phy_id = 0; | |
3075 | for (i = 1 ; i < 32 ; ++i) { | |
3076 | bmcr = jme_mdio_read(netdev, i, MII_BMCR); | |
3077 | bmsr = jme_mdio_read(netdev, i, MII_BMSR); | |
3078 | if (bmcr != 0xFFFFU && (bmcr != 0 || bmsr != 0)) { | |
3079 | jme->mii_if.phy_id = i; | |
3080 | break; | |
3081 | } | |
3082 | } | |
3083 | ||
3084 | if (!jme->mii_if.phy_id) { | |
3085 | rc = -EIO; | |
3086 | jeprintk(pdev, "Can not find phy_id.\n"); | |
3087 | goto err_out_unmap; | |
3088 | } | |
3089 | ||
3090 | jme->reg_ghc |= GHC_LINK_POLL; | |
3091 | } else { | |
3092 | jme->mii_if.phy_id = 1; | |
3093 | } | |
3094 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) | |
3095 | jme->mii_if.supports_gmii = true; | |
3096 | else | |
3097 | jme->mii_if.supports_gmii = false; | |
3098 | jme->mii_if.mdio_read = jme_mdio_read; | |
3099 | jme->mii_if.mdio_write = jme_mdio_write; | |
3100 | ||
3101 | jme_clear_pm(jme); | |
3102 | jme_set_phyfifoa(jme); | |
3103 | pci_read_config_byte(pdev, PCI_REVISION_ID, &jme->rev); | |
3104 | if (!jme->fpgaver) | |
3105 | jme_phy_init(jme); | |
3106 | jme_phy_off(jme); | |
3107 | ||
3108 | /* | |
3109 | * Reset MAC processor and reload EEPROM for MAC Address | |
3110 | */ | |
3111 | jme_reset_mac_processor(jme); | |
3112 | rc = jme_reload_eeprom(jme); | |
3113 | if (rc) { | |
3114 | jeprintk(pdev, | |
3115 | "Reload eeprom for reading MAC Address error.\n"); | |
3116 | goto err_out_unmap; | |
3117 | } | |
3118 | jme_load_macaddr(netdev); | |
3119 | ||
3120 | /* | |
3121 | * Tell stack that we are not ready to work until open() | |
3122 | */ | |
3123 | netif_carrier_off(netdev); | |
3124 | netif_stop_queue(netdev); | |
3125 | ||
3126 | /* | |
3127 | * Register netdev | |
3128 | */ | |
3129 | rc = register_netdev(netdev); | |
3130 | if (rc) { | |
3131 | jeprintk(pdev, "Cannot register net device.\n"); | |
3132 | goto err_out_unmap; | |
3133 | } | |
3134 | ||
3135 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33) | |
3136 | msg_probe(jme, "%s%s ver:%x rev:%x " | |
3137 | "macaddr: %02x:%02x:%02x:%02x:%02x:%02x\n", | |
3138 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) ? | |
3139 | "JMC250 Gigabit Ethernet" : | |
3140 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC260) ? | |
3141 | "JMC260 Fast Ethernet" : "Unknown", | |
3142 | (jme->fpgaver != 0) ? " (FPGA)" : "", | |
3143 | (jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev, | |
3144 | jme->rev, | |
3145 | netdev->dev_addr[0], | |
3146 | netdev->dev_addr[1], | |
3147 | netdev->dev_addr[2], | |
3148 | netdev->dev_addr[3], | |
3149 | netdev->dev_addr[4], | |
3150 | netdev->dev_addr[5]); | |
3151 | #else | |
3152 | netif_info(jme, probe, jme->dev, "%s%s ver:%x rev:%x macaddr:%pM\n", | |
3153 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) ? | |
3154 | "JMC250 Gigabit Ethernet" : | |
3155 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC260) ? | |
3156 | "JMC260 Fast Ethernet" : "Unknown", | |
3157 | (jme->fpgaver != 0) ? " (FPGA)" : "", | |
3158 | (jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev, | |
3159 | jme->rev, netdev->dev_addr); | |
3160 | #endif | |
3161 | ||
3162 | return 0; | |
3163 | ||
3164 | err_out_unmap: | |
3165 | iounmap(jme->regs); | |
3166 | err_out_free_netdev: | |
3167 | pci_set_drvdata(pdev, NULL); | |
3168 | free_netdev(netdev); | |
3169 | err_out_release_regions: | |
3170 | pci_release_regions(pdev); | |
3171 | err_out_disable_pdev: | |
3172 | pci_disable_device(pdev); | |
3173 | err_out: | |
3174 | return rc; | |
3175 | } | |
3176 | ||
3177 | static void __devexit | |
3178 | jme_remove_one(struct pci_dev *pdev) | |
3179 | { | |
3180 | struct net_device *netdev = pci_get_drvdata(pdev); | |
3181 | struct jme_adapter *jme = netdev_priv(netdev); | |
3182 | ||
3183 | unregister_netdev(netdev); | |
3184 | iounmap(jme->regs); | |
3185 | pci_set_drvdata(pdev, NULL); | |
3186 | free_netdev(netdev); | |
3187 | pci_release_regions(pdev); | |
3188 | pci_disable_device(pdev); | |
3189 | ||
3190 | } | |
3191 | ||
3192 | #ifdef CONFIG_PM | |
3193 | static int | |
3194 | jme_suspend(struct pci_dev *pdev, pm_message_t state) | |
3195 | { | |
3196 | struct net_device *netdev = pci_get_drvdata(pdev); | |
3197 | struct jme_adapter *jme = netdev_priv(netdev); | |
3198 | ||
3199 | atomic_dec(&jme->link_changing); | |
3200 | ||
3201 | netif_device_detach(netdev); | |
3202 | netif_stop_queue(netdev); | |
3203 | jme_stop_irq(jme); | |
3204 | ||
3205 | tasklet_disable(&jme->txclean_task); | |
3206 | tasklet_disable(&jme->rxclean_task); | |
3207 | tasklet_disable(&jme->rxempty_task); | |
3208 | ||
3209 | if (netif_carrier_ok(netdev)) { | |
3210 | if (test_bit(JME_FLAG_POLL, &jme->flags)) | |
3211 | jme_polling_mode(jme); | |
3212 | ||
3213 | jme_stop_pcc_timer(jme); | |
3214 | jme_reset_ghc_speed(jme); | |
3215 | jme_disable_rx_engine(jme); | |
3216 | jme_disable_tx_engine(jme); | |
3217 | jme_reset_mac_processor(jme); | |
3218 | jme_free_rx_resources(jme); | |
3219 | jme_free_tx_resources(jme); | |
3220 | netif_carrier_off(netdev); | |
3221 | jme->phylink = 0; | |
3222 | } | |
3223 | ||
3224 | tasklet_enable(&jme->txclean_task); | |
3225 | tasklet_hi_enable(&jme->rxclean_task); | |
3226 | tasklet_hi_enable(&jme->rxempty_task); | |
3227 | ||
3228 | pci_save_state(pdev); | |
3229 | if (jme->reg_pmcs) { | |
3230 | jme_set_100m_half(jme); | |
3231 | ||
3232 | if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) | |
3233 | jme_wait_link(jme); | |
3234 | ||
3235 | jwrite32(jme, JME_PMCS, jme->reg_pmcs); | |
3236 | ||
3237 | pci_enable_wake(pdev, PCI_D3cold, true); | |
3238 | } else { | |
3239 | jme_phy_off(jme); | |
3240 | } | |
3241 | pci_set_power_state(pdev, PCI_D3cold); | |
3242 | ||
3243 | return 0; | |
3244 | } | |
3245 | ||
3246 | static int | |
3247 | jme_resume(struct pci_dev *pdev) | |
3248 | { | |
3249 | struct net_device *netdev = pci_get_drvdata(pdev); | |
3250 | struct jme_adapter *jme = netdev_priv(netdev); | |
3251 | ||
3252 | jme_clear_pm(jme); | |
3253 | pci_restore_state(pdev); | |
3254 | ||
3255 | if (test_bit(JME_FLAG_SSET, &jme->flags)) | |
3256 | jme_set_settings(netdev, &jme->old_ecmd); | |
3257 | else | |
3258 | jme_reset_phy_processor(jme); | |
3259 | ||
3260 | jme_start_irq(jme); | |
3261 | netif_device_attach(netdev); | |
3262 | ||
3263 | atomic_inc(&jme->link_changing); | |
3264 | ||
3265 | jme_reset_link(jme); | |
3266 | ||
3267 | return 0; | |
3268 | } | |
3269 | #endif | |
3270 | ||
3271 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,24) | |
3272 | static struct pci_device_id jme_pci_tbl[] = { | |
3273 | #else | |
3274 | static DEFINE_PCI_DEVICE_TABLE(jme_pci_tbl) = { | |
3275 | #endif | |
3276 | { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC250) }, | |
3277 | { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC260) }, | |
3278 | { } | |
3279 | }; | |
3280 | ||
3281 | static struct pci_driver jme_driver = { | |
3282 | .name = DRV_NAME, | |
3283 | .id_table = jme_pci_tbl, | |
3284 | .probe = jme_init_one, | |
3285 | .remove = __devexit_p(jme_remove_one), | |
3286 | #ifdef CONFIG_PM | |
3287 | .suspend = jme_suspend, | |
3288 | .resume = jme_resume, | |
3289 | #endif /* CONFIG_PM */ | |
3290 | }; | |
3291 | ||
3292 | static int __init | |
3293 | jme_init_module(void) | |
3294 | { | |
3295 | printk(KERN_INFO PFX "JMicron JMC2XX ethernet " | |
3296 | "driver version %s\n", DRV_VERSION); | |
3297 | return pci_register_driver(&jme_driver); | |
3298 | } | |
3299 | ||
3300 | static void __exit | |
3301 | jme_cleanup_module(void) | |
3302 | { | |
3303 | pci_unregister_driver(&jme_driver); | |
3304 | } | |
3305 | ||
3306 | module_init(jme_init_module); | |
3307 | module_exit(jme_cleanup_module); | |
3308 | ||
3309 | MODULE_AUTHOR("Guo-Fu Tseng <cooldavid@cooldavid.org>"); | |
3310 | MODULE_DESCRIPTION("JMicron JMC2x0 PCI Express Ethernet driver"); | |
3311 | MODULE_LICENSE("GPL"); | |
3312 | MODULE_VERSION(DRV_VERSION); | |
3313 | MODULE_DEVICE_TABLE(pci, jme_pci_tbl); | |
3314 |