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95252236 GFT |
1 | /* |
2 | * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver | |
3 | * | |
4 | * Copyright 2008 JMicron Technology Corporation | |
5 | * http://www.jmicron.com/ | |
e47dfcd8 | 6 | * Copyright (c) 2009 - 2010 Guo-Fu Tseng <cooldavid@cooldavid.org> |
95252236 GFT |
7 | * |
8 | * Author: Guo-Fu Tseng <cooldavid@cooldavid.org> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | * | |
23 | */ | |
24 | ||
49d70c48 JP |
25 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
26 | ||
95252236 GFT |
27 | #include <linux/module.h> |
28 | #include <linux/kernel.h> | |
29 | #include <linux/pci.h> | |
30 | #include <linux/netdevice.h> | |
31 | #include <linux/etherdevice.h> | |
32 | #include <linux/ethtool.h> | |
33 | #include <linux/mii.h> | |
34 | #include <linux/crc32.h> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/spinlock.h> | |
37 | #include <linux/in.h> | |
38 | #include <linux/ip.h> | |
39 | #include <linux/ipv6.h> | |
40 | #include <linux/tcp.h> | |
41 | #include <linux/udp.h> | |
42 | #include <linux/if_vlan.h> | |
5a0e3ad6 | 43 | #include <linux/slab.h> |
b7c6bfb7 | 44 | #include <net/ip6_checksum.h> |
95252236 GFT |
45 | #include "jme.h" |
46 | ||
47 | static int force_pseudohp = -1; | |
48 | static int no_pseudohp = -1; | |
49 | static int no_extplug = -1; | |
50 | module_param(force_pseudohp, int, 0); | |
51 | MODULE_PARM_DESC(force_pseudohp, | |
52 | "Enable pseudo hot-plug feature manually by driver instead of BIOS."); | |
53 | module_param(no_pseudohp, int, 0); | |
54 | MODULE_PARM_DESC(no_pseudohp, "Disable pseudo hot-plug feature."); | |
55 | module_param(no_extplug, int, 0); | |
56 | MODULE_PARM_DESC(no_extplug, | |
57 | "Do not use external plug signal for pseudo hot-plug."); | |
58 | ||
59 | static int | |
60 | jme_mdio_read(struct net_device *netdev, int phy, int reg) | |
61 | { | |
62 | struct jme_adapter *jme = netdev_priv(netdev); | |
63 | int i, val, again = (reg == MII_BMSR) ? 1 : 0; | |
64 | ||
65 | read_again: | |
66 | jwrite32(jme, JME_SMI, SMI_OP_REQ | | |
67 | smi_phy_addr(phy) | | |
68 | smi_reg_addr(reg)); | |
69 | ||
70 | wmb(); | |
71 | for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { | |
72 | udelay(20); | |
73 | val = jread32(jme, JME_SMI); | |
74 | if ((val & SMI_OP_REQ) == 0) | |
75 | break; | |
76 | } | |
77 | ||
78 | if (i == 0) { | |
49d70c48 | 79 | pr_err("phy(%d) read timeout : %d\n", phy, reg); |
95252236 GFT |
80 | return 0; |
81 | } | |
82 | ||
83 | if (again--) | |
84 | goto read_again; | |
85 | ||
86 | return (val & SMI_DATA_MASK) >> SMI_DATA_SHIFT; | |
87 | } | |
88 | ||
89 | static void | |
90 | jme_mdio_write(struct net_device *netdev, | |
91 | int phy, int reg, int val) | |
92 | { | |
93 | struct jme_adapter *jme = netdev_priv(netdev); | |
94 | int i; | |
95 | ||
96 | jwrite32(jme, JME_SMI, SMI_OP_WRITE | SMI_OP_REQ | | |
97 | ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) | | |
98 | smi_phy_addr(phy) | smi_reg_addr(reg)); | |
99 | ||
100 | wmb(); | |
101 | for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { | |
102 | udelay(20); | |
103 | if ((jread32(jme, JME_SMI) & SMI_OP_REQ) == 0) | |
104 | break; | |
105 | } | |
106 | ||
107 | if (i == 0) | |
49d70c48 | 108 | pr_err("phy(%d) write timeout : %d\n", phy, reg); |
95252236 GFT |
109 | } |
110 | ||
111 | static inline void | |
112 | jme_reset_phy_processor(struct jme_adapter *jme) | |
113 | { | |
114 | u32 val; | |
115 | ||
116 | jme_mdio_write(jme->dev, | |
117 | jme->mii_if.phy_id, | |
118 | MII_ADVERTISE, ADVERTISE_ALL | | |
119 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
120 | ||
121 | if (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) | |
122 | jme_mdio_write(jme->dev, | |
123 | jme->mii_if.phy_id, | |
124 | MII_CTRL1000, | |
125 | ADVERTISE_1000FULL | ADVERTISE_1000HALF); | |
126 | ||
127 | val = jme_mdio_read(jme->dev, | |
128 | jme->mii_if.phy_id, | |
129 | MII_BMCR); | |
130 | ||
131 | jme_mdio_write(jme->dev, | |
132 | jme->mii_if.phy_id, | |
133 | MII_BMCR, val | BMCR_RESET); | |
95252236 GFT |
134 | } |
135 | ||
136 | static void | |
137 | jme_setup_wakeup_frame(struct jme_adapter *jme, | |
138 | u32 *mask, u32 crc, int fnr) | |
139 | { | |
140 | int i; | |
141 | ||
142 | /* | |
143 | * Setup CRC pattern | |
144 | */ | |
145 | jwrite32(jme, JME_WFOI, WFOI_CRC_SEL | (fnr & WFOI_FRAME_SEL)); | |
146 | wmb(); | |
147 | jwrite32(jme, JME_WFODP, crc); | |
148 | wmb(); | |
149 | ||
150 | /* | |
151 | * Setup Mask | |
152 | */ | |
153 | for (i = 0 ; i < WAKEUP_FRAME_MASK_DWNR ; ++i) { | |
154 | jwrite32(jme, JME_WFOI, | |
155 | ((i << WFOI_MASK_SHIFT) & WFOI_MASK_SEL) | | |
156 | (fnr & WFOI_FRAME_SEL)); | |
157 | wmb(); | |
158 | jwrite32(jme, JME_WFODP, mask[i]); | |
159 | wmb(); | |
160 | } | |
161 | } | |
162 | ||
163 | static inline void | |
164 | jme_reset_mac_processor(struct jme_adapter *jme) | |
165 | { | |
166 | u32 mask[WAKEUP_FRAME_MASK_DWNR] = {0, 0, 0, 0}; | |
167 | u32 crc = 0xCDCDCDCD; | |
168 | u32 gpreg0; | |
169 | int i; | |
170 | ||
171 | jwrite32(jme, JME_GHC, jme->reg_ghc | GHC_SWRST); | |
172 | udelay(2); | |
173 | jwrite32(jme, JME_GHC, jme->reg_ghc); | |
174 | ||
175 | jwrite32(jme, JME_RXDBA_LO, 0x00000000); | |
176 | jwrite32(jme, JME_RXDBA_HI, 0x00000000); | |
177 | jwrite32(jme, JME_RXQDC, 0x00000000); | |
178 | jwrite32(jme, JME_RXNDA, 0x00000000); | |
179 | jwrite32(jme, JME_TXDBA_LO, 0x00000000); | |
180 | jwrite32(jme, JME_TXDBA_HI, 0x00000000); | |
181 | jwrite32(jme, JME_TXQDC, 0x00000000); | |
182 | jwrite32(jme, JME_TXNDA, 0x00000000); | |
183 | ||
184 | jwrite32(jme, JME_RXMCHT_LO, 0x00000000); | |
185 | jwrite32(jme, JME_RXMCHT_HI, 0x00000000); | |
186 | for (i = 0 ; i < WAKEUP_FRAME_NR ; ++i) | |
187 | jme_setup_wakeup_frame(jme, mask, crc, i); | |
188 | if (jme->fpgaver) | |
189 | gpreg0 = GPREG0_DEFAULT | GPREG0_LNKINTPOLL; | |
190 | else | |
191 | gpreg0 = GPREG0_DEFAULT; | |
192 | jwrite32(jme, JME_GPREG0, gpreg0); | |
a821ebe5 | 193 | jwrite32(jme, JME_GPREG1, GPREG1_DEFAULT); |
95252236 GFT |
194 | } |
195 | ||
196 | static inline void | |
197 | jme_reset_ghc_speed(struct jme_adapter *jme) | |
198 | { | |
199 | jme->reg_ghc &= ~(GHC_SPEED_1000M | GHC_DPX); | |
200 | jwrite32(jme, JME_GHC, jme->reg_ghc); | |
201 | } | |
202 | ||
203 | static inline void | |
204 | jme_clear_pm(struct jme_adapter *jme) | |
205 | { | |
206 | jwrite32(jme, JME_PMCS, 0xFFFF0000 | jme->reg_pmcs); | |
207 | pci_set_power_state(jme->pdev, PCI_D0); | |
208 | pci_enable_wake(jme->pdev, PCI_D0, false); | |
209 | } | |
210 | ||
211 | static int | |
212 | jme_reload_eeprom(struct jme_adapter *jme) | |
213 | { | |
214 | u32 val; | |
215 | int i; | |
216 | ||
217 | val = jread32(jme, JME_SMBCSR); | |
218 | ||
219 | if (val & SMBCSR_EEPROMD) { | |
220 | val |= SMBCSR_CNACK; | |
221 | jwrite32(jme, JME_SMBCSR, val); | |
222 | val |= SMBCSR_RELOAD; | |
223 | jwrite32(jme, JME_SMBCSR, val); | |
224 | mdelay(12); | |
225 | ||
226 | for (i = JME_EEPROM_RELOAD_TIMEOUT; i > 0; --i) { | |
227 | mdelay(1); | |
228 | if ((jread32(jme, JME_SMBCSR) & SMBCSR_RELOAD) == 0) | |
229 | break; | |
230 | } | |
231 | ||
232 | if (i == 0) { | |
49d70c48 | 233 | pr_err("eeprom reload timeout\n"); |
95252236 GFT |
234 | return -EIO; |
235 | } | |
236 | } | |
237 | ||
238 | return 0; | |
239 | } | |
240 | ||
241 | static void | |
242 | jme_load_macaddr(struct net_device *netdev) | |
243 | { | |
244 | struct jme_adapter *jme = netdev_priv(netdev); | |
245 | unsigned char macaddr[6]; | |
246 | u32 val; | |
247 | ||
248 | spin_lock_bh(&jme->macaddr_lock); | |
249 | val = jread32(jme, JME_RXUMA_LO); | |
250 | macaddr[0] = (val >> 0) & 0xFF; | |
251 | macaddr[1] = (val >> 8) & 0xFF; | |
252 | macaddr[2] = (val >> 16) & 0xFF; | |
253 | macaddr[3] = (val >> 24) & 0xFF; | |
254 | val = jread32(jme, JME_RXUMA_HI); | |
255 | macaddr[4] = (val >> 0) & 0xFF; | |
256 | macaddr[5] = (val >> 8) & 0xFF; | |
257 | memcpy(netdev->dev_addr, macaddr, 6); | |
258 | spin_unlock_bh(&jme->macaddr_lock); | |
259 | } | |
260 | ||
261 | static inline void | |
262 | jme_set_rx_pcc(struct jme_adapter *jme, int p) | |
263 | { | |
264 | switch (p) { | |
265 | case PCC_OFF: | |
266 | jwrite32(jme, JME_PCCRX0, | |
267 | ((PCC_OFF_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
268 | ((PCC_OFF_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
269 | break; | |
270 | case PCC_P1: | |
271 | jwrite32(jme, JME_PCCRX0, | |
272 | ((PCC_P1_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
273 | ((PCC_P1_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
274 | break; | |
275 | case PCC_P2: | |
276 | jwrite32(jme, JME_PCCRX0, | |
277 | ((PCC_P2_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
278 | ((PCC_P2_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
279 | break; | |
280 | case PCC_P3: | |
281 | jwrite32(jme, JME_PCCRX0, | |
282 | ((PCC_P3_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
283 | ((PCC_P3_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
284 | break; | |
285 | default: | |
286 | break; | |
287 | } | |
288 | wmb(); | |
289 | ||
290 | if (!(test_bit(JME_FLAG_POLL, &jme->flags))) | |
f8502ce4 | 291 | netif_info(jme, rx_status, jme->dev, "Switched to PCC_P%d\n", p); |
95252236 GFT |
292 | } |
293 | ||
294 | static void | |
295 | jme_start_irq(struct jme_adapter *jme) | |
296 | { | |
297 | register struct dynpcc_info *dpi = &(jme->dpi); | |
298 | ||
299 | jme_set_rx_pcc(jme, PCC_P1); | |
300 | dpi->cur = PCC_P1; | |
301 | dpi->attempt = PCC_P1; | |
302 | dpi->cnt = 0; | |
303 | ||
304 | jwrite32(jme, JME_PCCTX, | |
305 | ((PCC_TX_TO << PCCTXTO_SHIFT) & PCCTXTO_MASK) | | |
306 | ((PCC_TX_CNT << PCCTX_SHIFT) & PCCTX_MASK) | | |
307 | PCCTXQ0_EN | |
308 | ); | |
309 | ||
310 | /* | |
311 | * Enable Interrupts | |
312 | */ | |
313 | jwrite32(jme, JME_IENS, INTR_ENABLE); | |
314 | } | |
315 | ||
316 | static inline void | |
317 | jme_stop_irq(struct jme_adapter *jme) | |
318 | { | |
319 | /* | |
320 | * Disable Interrupts | |
321 | */ | |
322 | jwrite32f(jme, JME_IENC, INTR_ENABLE); | |
323 | } | |
324 | ||
95252236 GFT |
325 | static u32 |
326 | jme_linkstat_from_phy(struct jme_adapter *jme) | |
327 | { | |
328 | u32 phylink, bmsr; | |
329 | ||
330 | phylink = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 17); | |
331 | bmsr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMSR); | |
332 | if (bmsr & BMSR_ANCOMP) | |
333 | phylink |= PHY_LINK_AUTONEG_COMPLETE; | |
334 | ||
335 | return phylink; | |
336 | } | |
337 | ||
338 | static inline void | |
339 | jme_set_phyfifoa(struct jme_adapter *jme) | |
340 | { | |
341 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0004); | |
342 | } | |
343 | ||
344 | static inline void | |
345 | jme_set_phyfifob(struct jme_adapter *jme) | |
346 | { | |
347 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0000); | |
348 | } | |
349 | ||
350 | static int | |
351 | jme_check_link(struct net_device *netdev, int testonly) | |
352 | { | |
353 | struct jme_adapter *jme = netdev_priv(netdev); | |
a821ebe5 | 354 | u32 phylink, ghc, cnt = JME_SPDRSV_TIMEOUT, bmcr, gpreg1; |
95252236 GFT |
355 | char linkmsg[64]; |
356 | int rc = 0; | |
357 | ||
358 | linkmsg[0] = '\0'; | |
359 | ||
360 | if (jme->fpgaver) | |
361 | phylink = jme_linkstat_from_phy(jme); | |
362 | else | |
363 | phylink = jread32(jme, JME_PHY_LINK); | |
364 | ||
365 | if (phylink & PHY_LINK_UP) { | |
366 | if (!(phylink & PHY_LINK_AUTONEG_COMPLETE)) { | |
367 | /* | |
368 | * If we did not enable AN | |
369 | * Speed/Duplex Info should be obtained from SMI | |
370 | */ | |
371 | phylink = PHY_LINK_UP; | |
372 | ||
373 | bmcr = jme_mdio_read(jme->dev, | |
374 | jme->mii_if.phy_id, | |
375 | MII_BMCR); | |
376 | ||
377 | phylink |= ((bmcr & BMCR_SPEED1000) && | |
378 | (bmcr & BMCR_SPEED100) == 0) ? | |
379 | PHY_LINK_SPEED_1000M : | |
380 | (bmcr & BMCR_SPEED100) ? | |
381 | PHY_LINK_SPEED_100M : | |
382 | PHY_LINK_SPEED_10M; | |
383 | ||
384 | phylink |= (bmcr & BMCR_FULLDPLX) ? | |
385 | PHY_LINK_DUPLEX : 0; | |
386 | ||
387 | strcat(linkmsg, "Forced: "); | |
388 | } else { | |
389 | /* | |
390 | * Keep polling for speed/duplex resolve complete | |
391 | */ | |
392 | while (!(phylink & PHY_LINK_SPEEDDPU_RESOLVED) && | |
393 | --cnt) { | |
394 | ||
395 | udelay(1); | |
396 | ||
397 | if (jme->fpgaver) | |
398 | phylink = jme_linkstat_from_phy(jme); | |
399 | else | |
400 | phylink = jread32(jme, JME_PHY_LINK); | |
401 | } | |
402 | if (!cnt) | |
49d70c48 | 403 | pr_err("Waiting speed resolve timeout\n"); |
95252236 GFT |
404 | |
405 | strcat(linkmsg, "ANed: "); | |
406 | } | |
407 | ||
408 | if (jme->phylink == phylink) { | |
409 | rc = 1; | |
410 | goto out; | |
411 | } | |
412 | if (testonly) | |
413 | goto out; | |
414 | ||
415 | jme->phylink = phylink; | |
416 | ||
eb352b83 GFT |
417 | ghc = jme->reg_ghc & ~(GHC_SPEED | GHC_DPX | |
418 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE | | |
419 | GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY); | |
95252236 GFT |
420 | switch (phylink & PHY_LINK_SPEED_MASK) { |
421 | case PHY_LINK_SPEED_10M: | |
4f40bf46 | 422 | ghc |= GHC_SPEED_10M | |
423 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; | |
95252236 | 424 | strcat(linkmsg, "10 Mbps, "); |
95252236 GFT |
425 | break; |
426 | case PHY_LINK_SPEED_100M: | |
4f40bf46 | 427 | ghc |= GHC_SPEED_100M | |
428 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; | |
95252236 | 429 | strcat(linkmsg, "100 Mbps, "); |
95252236 GFT |
430 | break; |
431 | case PHY_LINK_SPEED_1000M: | |
4f40bf46 | 432 | ghc |= GHC_SPEED_1000M | |
433 | GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY; | |
95252236 | 434 | strcat(linkmsg, "1000 Mbps, "); |
95252236 GFT |
435 | break; |
436 | default: | |
437 | break; | |
438 | } | |
95252236 GFT |
439 | |
440 | if (phylink & PHY_LINK_DUPLEX) { | |
441 | jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT); | |
a821ebe5 | 442 | ghc |= GHC_DPX; |
95252236 GFT |
443 | } else { |
444 | jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT | | |
445 | TXMCS_BACKOFF | | |
446 | TXMCS_CARRIERSENSE | | |
447 | TXMCS_COLLISION); | |
448 | jwrite32(jme, JME_TXTRHD, TXTRHD_TXPEN | | |
449 | ((0x2000 << TXTRHD_TXP_SHIFT) & TXTRHD_TXP) | | |
450 | TXTRHD_TXREN | | |
451 | ((8 << TXTRHD_TXRL_SHIFT) & TXTRHD_TXRL)); | |
452 | } | |
a821ebe5 GFT |
453 | |
454 | gpreg1 = GPREG1_DEFAULT; | |
455 | if (is_buggy250(jme->pdev->device, jme->chiprev)) { | |
456 | if (!(phylink & PHY_LINK_DUPLEX)) | |
457 | gpreg1 |= GPREG1_HALFMODEPATCH; | |
458 | switch (phylink & PHY_LINK_SPEED_MASK) { | |
459 | case PHY_LINK_SPEED_10M: | |
460 | jme_set_phyfifoa(jme); | |
461 | gpreg1 |= GPREG1_RSSPATCH; | |
462 | break; | |
463 | case PHY_LINK_SPEED_100M: | |
464 | jme_set_phyfifob(jme); | |
465 | gpreg1 |= GPREG1_RSSPATCH; | |
466 | break; | |
467 | case PHY_LINK_SPEED_1000M: | |
468 | jme_set_phyfifoa(jme); | |
469 | break; | |
470 | default: | |
471 | break; | |
472 | } | |
473 | } | |
95252236 | 474 | |
4f40bf46 | 475 | jwrite32(jme, JME_GPREG1, gpreg1); |
95252236 | 476 | jwrite32(jme, JME_GHC, ghc); |
4f40bf46 | 477 | jme->reg_ghc = ghc; |
95252236 | 478 | |
4f40bf46 | 479 | strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ? |
480 | "Full-Duplex, " : | |
481 | "Half-Duplex, "); | |
482 | strcat(linkmsg, (phylink & PHY_LINK_MDI_STAT) ? | |
483 | "MDI-X" : | |
484 | "MDI"); | |
49d70c48 | 485 | netif_info(jme, link, jme->dev, "Link is up at %s\n", linkmsg); |
95252236 GFT |
486 | netif_carrier_on(netdev); |
487 | } else { | |
488 | if (testonly) | |
489 | goto out; | |
490 | ||
49d70c48 | 491 | netif_info(jme, link, jme->dev, "Link is down\n"); |
95252236 GFT |
492 | jme->phylink = 0; |
493 | netif_carrier_off(netdev); | |
494 | } | |
495 | ||
496 | out: | |
497 | return rc; | |
498 | } | |
499 | ||
500 | static int | |
501 | jme_setup_tx_resources(struct jme_adapter *jme) | |
502 | { | |
503 | struct jme_ring *txring = &(jme->txring[0]); | |
504 | ||
505 | txring->alloc = dma_alloc_coherent(&(jme->pdev->dev), | |
506 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), | |
507 | &(txring->dmaalloc), | |
508 | GFP_ATOMIC); | |
509 | ||
47bd10d1 GFT |
510 | if (!txring->alloc) |
511 | goto err_set_null; | |
95252236 GFT |
512 | |
513 | /* | |
514 | * 16 Bytes align | |
515 | */ | |
516 | txring->desc = (void *)ALIGN((unsigned long)(txring->alloc), | |
517 | RING_DESC_ALIGN); | |
518 | txring->dma = ALIGN(txring->dmaalloc, RING_DESC_ALIGN); | |
519 | txring->next_to_use = 0; | |
520 | atomic_set(&txring->next_to_clean, 0); | |
521 | atomic_set(&txring->nr_free, jme->tx_ring_size); | |
522 | ||
47bd10d1 GFT |
523 | txring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * |
524 | jme->tx_ring_size, GFP_ATOMIC); | |
525 | if (unlikely(!(txring->bufinf))) | |
526 | goto err_free_txring; | |
527 | ||
95252236 GFT |
528 | /* |
529 | * Initialize Transmit Descriptors | |
530 | */ | |
531 | memset(txring->alloc, 0, TX_RING_ALLOC_SIZE(jme->tx_ring_size)); | |
532 | memset(txring->bufinf, 0, | |
533 | sizeof(struct jme_buffer_info) * jme->tx_ring_size); | |
534 | ||
535 | return 0; | |
47bd10d1 GFT |
536 | |
537 | err_free_txring: | |
538 | dma_free_coherent(&(jme->pdev->dev), | |
539 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), | |
540 | txring->alloc, | |
541 | txring->dmaalloc); | |
542 | ||
543 | err_set_null: | |
544 | txring->desc = NULL; | |
545 | txring->dmaalloc = 0; | |
546 | txring->dma = 0; | |
547 | txring->bufinf = NULL; | |
548 | ||
549 | return -ENOMEM; | |
95252236 GFT |
550 | } |
551 | ||
552 | static void | |
553 | jme_free_tx_resources(struct jme_adapter *jme) | |
554 | { | |
555 | int i; | |
556 | struct jme_ring *txring = &(jme->txring[0]); | |
eacf69a1 | 557 | struct jme_buffer_info *txbi; |
95252236 GFT |
558 | |
559 | if (txring->alloc) { | |
47bd10d1 GFT |
560 | if (txring->bufinf) { |
561 | for (i = 0 ; i < jme->tx_ring_size ; ++i) { | |
562 | txbi = txring->bufinf + i; | |
563 | if (txbi->skb) { | |
564 | dev_kfree_skb(txbi->skb); | |
565 | txbi->skb = NULL; | |
566 | } | |
567 | txbi->mapping = 0; | |
568 | txbi->len = 0; | |
569 | txbi->nr_desc = 0; | |
570 | txbi->start_xmit = 0; | |
95252236 | 571 | } |
47bd10d1 | 572 | kfree(txring->bufinf); |
95252236 GFT |
573 | } |
574 | ||
575 | dma_free_coherent(&(jme->pdev->dev), | |
576 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), | |
577 | txring->alloc, | |
578 | txring->dmaalloc); | |
579 | ||
580 | txring->alloc = NULL; | |
581 | txring->desc = NULL; | |
582 | txring->dmaalloc = 0; | |
583 | txring->dma = 0; | |
47bd10d1 | 584 | txring->bufinf = NULL; |
95252236 GFT |
585 | } |
586 | txring->next_to_use = 0; | |
587 | atomic_set(&txring->next_to_clean, 0); | |
588 | atomic_set(&txring->nr_free, 0); | |
95252236 GFT |
589 | } |
590 | ||
591 | static inline void | |
592 | jme_enable_tx_engine(struct jme_adapter *jme) | |
593 | { | |
594 | /* | |
595 | * Select Queue 0 | |
596 | */ | |
597 | jwrite32(jme, JME_TXCS, TXCS_DEFAULT | TXCS_SELECT_QUEUE0); | |
598 | wmb(); | |
599 | ||
600 | /* | |
601 | * Setup TX Queue 0 DMA Bass Address | |
602 | */ | |
603 | jwrite32(jme, JME_TXDBA_LO, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); | |
604 | jwrite32(jme, JME_TXDBA_HI, (__u64)(jme->txring[0].dma) >> 32); | |
605 | jwrite32(jme, JME_TXNDA, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); | |
606 | ||
607 | /* | |
608 | * Setup TX Descptor Count | |
609 | */ | |
610 | jwrite32(jme, JME_TXQDC, jme->tx_ring_size); | |
611 | ||
612 | /* | |
613 | * Enable TX Engine | |
614 | */ | |
615 | wmb(); | |
616 | jwrite32(jme, JME_TXCS, jme->reg_txcs | | |
617 | TXCS_SELECT_QUEUE0 | | |
618 | TXCS_ENABLE); | |
619 | ||
620 | } | |
621 | ||
622 | static inline void | |
623 | jme_restart_tx_engine(struct jme_adapter *jme) | |
624 | { | |
625 | /* | |
626 | * Restart TX Engine | |
627 | */ | |
628 | jwrite32(jme, JME_TXCS, jme->reg_txcs | | |
629 | TXCS_SELECT_QUEUE0 | | |
630 | TXCS_ENABLE); | |
631 | } | |
632 | ||
633 | static inline void | |
634 | jme_disable_tx_engine(struct jme_adapter *jme) | |
635 | { | |
636 | int i; | |
637 | u32 val; | |
638 | ||
639 | /* | |
640 | * Disable TX Engine | |
641 | */ | |
642 | jwrite32(jme, JME_TXCS, jme->reg_txcs | TXCS_SELECT_QUEUE0); | |
643 | wmb(); | |
644 | ||
645 | val = jread32(jme, JME_TXCS); | |
646 | for (i = JME_TX_DISABLE_TIMEOUT ; (val & TXCS_ENABLE) && i > 0 ; --i) { | |
647 | mdelay(1); | |
648 | val = jread32(jme, JME_TXCS); | |
649 | rmb(); | |
650 | } | |
651 | ||
652 | if (!i) | |
49d70c48 | 653 | pr_err("Disable TX engine timeout\n"); |
95252236 GFT |
654 | } |
655 | ||
656 | static void | |
657 | jme_set_clean_rxdesc(struct jme_adapter *jme, int i) | |
658 | { | |
eacf69a1 | 659 | struct jme_ring *rxring = &(jme->rxring[0]); |
95252236 GFT |
660 | register struct rxdesc *rxdesc = rxring->desc; |
661 | struct jme_buffer_info *rxbi = rxring->bufinf; | |
662 | rxdesc += i; | |
663 | rxbi += i; | |
664 | ||
665 | rxdesc->dw[0] = 0; | |
666 | rxdesc->dw[1] = 0; | |
667 | rxdesc->desc1.bufaddrh = cpu_to_le32((__u64)rxbi->mapping >> 32); | |
668 | rxdesc->desc1.bufaddrl = cpu_to_le32( | |
669 | (__u64)rxbi->mapping & 0xFFFFFFFFUL); | |
670 | rxdesc->desc1.datalen = cpu_to_le16(rxbi->len); | |
671 | if (jme->dev->features & NETIF_F_HIGHDMA) | |
672 | rxdesc->desc1.flags = RXFLAG_64BIT; | |
673 | wmb(); | |
674 | rxdesc->desc1.flags |= RXFLAG_OWN | RXFLAG_INT; | |
675 | } | |
676 | ||
677 | static int | |
678 | jme_make_new_rx_buf(struct jme_adapter *jme, int i) | |
679 | { | |
680 | struct jme_ring *rxring = &(jme->rxring[0]); | |
681 | struct jme_buffer_info *rxbi = rxring->bufinf + i; | |
682 | struct sk_buff *skb; | |
683 | ||
684 | skb = netdev_alloc_skb(jme->dev, | |
685 | jme->dev->mtu + RX_EXTRA_LEN); | |
686 | if (unlikely(!skb)) | |
687 | return -ENOMEM; | |
688 | ||
689 | rxbi->skb = skb; | |
690 | rxbi->len = skb_tailroom(skb); | |
691 | rxbi->mapping = pci_map_page(jme->pdev, | |
692 | virt_to_page(skb->data), | |
693 | offset_in_page(skb->data), | |
694 | rxbi->len, | |
695 | PCI_DMA_FROMDEVICE); | |
696 | ||
697 | return 0; | |
698 | } | |
699 | ||
700 | static void | |
701 | jme_free_rx_buf(struct jme_adapter *jme, int i) | |
702 | { | |
703 | struct jme_ring *rxring = &(jme->rxring[0]); | |
704 | struct jme_buffer_info *rxbi = rxring->bufinf; | |
705 | rxbi += i; | |
706 | ||
707 | if (rxbi->skb) { | |
708 | pci_unmap_page(jme->pdev, | |
709 | rxbi->mapping, | |
710 | rxbi->len, | |
711 | PCI_DMA_FROMDEVICE); | |
712 | dev_kfree_skb(rxbi->skb); | |
713 | rxbi->skb = NULL; | |
714 | rxbi->mapping = 0; | |
715 | rxbi->len = 0; | |
716 | } | |
717 | } | |
718 | ||
719 | static void | |
720 | jme_free_rx_resources(struct jme_adapter *jme) | |
721 | { | |
722 | int i; | |
723 | struct jme_ring *rxring = &(jme->rxring[0]); | |
724 | ||
725 | if (rxring->alloc) { | |
47bd10d1 GFT |
726 | if (rxring->bufinf) { |
727 | for (i = 0 ; i < jme->rx_ring_size ; ++i) | |
728 | jme_free_rx_buf(jme, i); | |
729 | kfree(rxring->bufinf); | |
730 | } | |
95252236 GFT |
731 | |
732 | dma_free_coherent(&(jme->pdev->dev), | |
733 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), | |
734 | rxring->alloc, | |
735 | rxring->dmaalloc); | |
736 | rxring->alloc = NULL; | |
737 | rxring->desc = NULL; | |
738 | rxring->dmaalloc = 0; | |
739 | rxring->dma = 0; | |
47bd10d1 | 740 | rxring->bufinf = NULL; |
95252236 GFT |
741 | } |
742 | rxring->next_to_use = 0; | |
743 | atomic_set(&rxring->next_to_clean, 0); | |
744 | } | |
745 | ||
746 | static int | |
747 | jme_setup_rx_resources(struct jme_adapter *jme) | |
748 | { | |
749 | int i; | |
750 | struct jme_ring *rxring = &(jme->rxring[0]); | |
751 | ||
752 | rxring->alloc = dma_alloc_coherent(&(jme->pdev->dev), | |
753 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), | |
754 | &(rxring->dmaalloc), | |
755 | GFP_ATOMIC); | |
47bd10d1 GFT |
756 | if (!rxring->alloc) |
757 | goto err_set_null; | |
95252236 GFT |
758 | |
759 | /* | |
760 | * 16 Bytes align | |
761 | */ | |
762 | rxring->desc = (void *)ALIGN((unsigned long)(rxring->alloc), | |
763 | RING_DESC_ALIGN); | |
764 | rxring->dma = ALIGN(rxring->dmaalloc, RING_DESC_ALIGN); | |
765 | rxring->next_to_use = 0; | |
766 | atomic_set(&rxring->next_to_clean, 0); | |
767 | ||
47bd10d1 GFT |
768 | rxring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * |
769 | jme->rx_ring_size, GFP_ATOMIC); | |
770 | if (unlikely(!(rxring->bufinf))) | |
771 | goto err_free_rxring; | |
772 | ||
95252236 GFT |
773 | /* |
774 | * Initiallize Receive Descriptors | |
775 | */ | |
47bd10d1 GFT |
776 | memset(rxring->bufinf, 0, |
777 | sizeof(struct jme_buffer_info) * jme->rx_ring_size); | |
95252236 GFT |
778 | for (i = 0 ; i < jme->rx_ring_size ; ++i) { |
779 | if (unlikely(jme_make_new_rx_buf(jme, i))) { | |
780 | jme_free_rx_resources(jme); | |
781 | return -ENOMEM; | |
782 | } | |
783 | ||
784 | jme_set_clean_rxdesc(jme, i); | |
785 | } | |
786 | ||
787 | return 0; | |
47bd10d1 GFT |
788 | |
789 | err_free_rxring: | |
790 | dma_free_coherent(&(jme->pdev->dev), | |
791 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), | |
792 | rxring->alloc, | |
793 | rxring->dmaalloc); | |
794 | err_set_null: | |
795 | rxring->desc = NULL; | |
796 | rxring->dmaalloc = 0; | |
797 | rxring->dma = 0; | |
798 | rxring->bufinf = NULL; | |
799 | ||
800 | return -ENOMEM; | |
95252236 GFT |
801 | } |
802 | ||
803 | static inline void | |
804 | jme_enable_rx_engine(struct jme_adapter *jme) | |
805 | { | |
806 | /* | |
807 | * Select Queue 0 | |
808 | */ | |
809 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | | |
810 | RXCS_QUEUESEL_Q0); | |
811 | wmb(); | |
812 | ||
813 | /* | |
814 | * Setup RX DMA Bass Address | |
815 | */ | |
eacf69a1 | 816 | jwrite32(jme, JME_RXDBA_LO, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); |
95252236 | 817 | jwrite32(jme, JME_RXDBA_HI, (__u64)(jme->rxring[0].dma) >> 32); |
eacf69a1 | 818 | jwrite32(jme, JME_RXNDA, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); |
95252236 GFT |
819 | |
820 | /* | |
821 | * Setup RX Descriptor Count | |
822 | */ | |
823 | jwrite32(jme, JME_RXQDC, jme->rx_ring_size); | |
824 | ||
825 | /* | |
826 | * Setup Unicast Filter | |
827 | */ | |
828 | jme_set_multi(jme->dev); | |
829 | ||
830 | /* | |
831 | * Enable RX Engine | |
832 | */ | |
833 | wmb(); | |
834 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | | |
835 | RXCS_QUEUESEL_Q0 | | |
836 | RXCS_ENABLE | | |
837 | RXCS_QST); | |
838 | } | |
839 | ||
840 | static inline void | |
841 | jme_restart_rx_engine(struct jme_adapter *jme) | |
842 | { | |
843 | /* | |
844 | * Start RX Engine | |
845 | */ | |
846 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | | |
847 | RXCS_QUEUESEL_Q0 | | |
848 | RXCS_ENABLE | | |
849 | RXCS_QST); | |
850 | } | |
851 | ||
852 | static inline void | |
853 | jme_disable_rx_engine(struct jme_adapter *jme) | |
854 | { | |
855 | int i; | |
856 | u32 val; | |
857 | ||
858 | /* | |
859 | * Disable RX Engine | |
860 | */ | |
861 | jwrite32(jme, JME_RXCS, jme->reg_rxcs); | |
862 | wmb(); | |
863 | ||
864 | val = jread32(jme, JME_RXCS); | |
865 | for (i = JME_RX_DISABLE_TIMEOUT ; (val & RXCS_ENABLE) && i > 0 ; --i) { | |
866 | mdelay(1); | |
867 | val = jread32(jme, JME_RXCS); | |
868 | rmb(); | |
869 | } | |
870 | ||
871 | if (!i) | |
49d70c48 | 872 | pr_err("Disable RX engine timeout\n"); |
95252236 GFT |
873 | |
874 | } | |
875 | ||
876 | static int | |
877 | jme_rxsum_ok(struct jme_adapter *jme, u16 flags) | |
878 | { | |
879 | if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4))) | |
880 | return false; | |
881 | ||
ce7d70af GFT |
882 | if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_TCPON | RXWBFLAG_TCPCS)) |
883 | == RXWBFLAG_TCPON)) { | |
884 | if (flags & RXWBFLAG_IPV4) | |
f8502ce4 | 885 | netif_err(jme, rx_err, jme->dev, "TCP Checksum error\n"); |
ce7d70af | 886 | return false; |
95252236 GFT |
887 | } |
888 | ||
ce7d70af GFT |
889 | if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_UDPON | RXWBFLAG_UDPCS)) |
890 | == RXWBFLAG_UDPON)) { | |
891 | if (flags & RXWBFLAG_IPV4) | |
49d70c48 | 892 | netif_err(jme, rx_err, jme->dev, "UDP Checksum error\n"); |
ce7d70af | 893 | return false; |
95252236 GFT |
894 | } |
895 | ||
ce7d70af GFT |
896 | if (unlikely((flags & (RXWBFLAG_IPV4 | RXWBFLAG_IPCS)) |
897 | == RXWBFLAG_IPV4)) { | |
49d70c48 | 898 | netif_err(jme, rx_err, jme->dev, "IPv4 Checksum error\n"); |
ce7d70af | 899 | return false; |
95252236 GFT |
900 | } |
901 | ||
902 | return true; | |
95252236 GFT |
903 | } |
904 | ||
905 | static void | |
906 | jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx) | |
907 | { | |
908 | struct jme_ring *rxring = &(jme->rxring[0]); | |
909 | struct rxdesc *rxdesc = rxring->desc; | |
910 | struct jme_buffer_info *rxbi = rxring->bufinf; | |
911 | struct sk_buff *skb; | |
912 | int framesize; | |
913 | ||
914 | rxdesc += idx; | |
915 | rxbi += idx; | |
916 | ||
917 | skb = rxbi->skb; | |
918 | pci_dma_sync_single_for_cpu(jme->pdev, | |
919 | rxbi->mapping, | |
920 | rxbi->len, | |
921 | PCI_DMA_FROMDEVICE); | |
922 | ||
923 | if (unlikely(jme_make_new_rx_buf(jme, idx))) { | |
924 | pci_dma_sync_single_for_device(jme->pdev, | |
925 | rxbi->mapping, | |
926 | rxbi->len, | |
927 | PCI_DMA_FROMDEVICE); | |
928 | ||
929 | ++(NET_STAT(jme).rx_dropped); | |
930 | } else { | |
931 | framesize = le16_to_cpu(rxdesc->descwb.framesize) | |
932 | - RX_PREPAD_SIZE; | |
933 | ||
934 | skb_reserve(skb, RX_PREPAD_SIZE); | |
935 | skb_put(skb, framesize); | |
936 | skb->protocol = eth_type_trans(skb, jme->dev); | |
937 | ||
31c221c4 | 938 | if (jme_rxsum_ok(jme, le16_to_cpu(rxdesc->descwb.flags))) |
95252236 GFT |
939 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
940 | else | |
bc8acf2c | 941 | skb_checksum_none_assert(skb); |
95252236 | 942 | |
31c221c4 | 943 | if (rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_TAGON)) { |
95252236 GFT |
944 | if (jme->vlgrp) { |
945 | jme->jme_vlan_rx(skb, jme->vlgrp, | |
31c221c4 | 946 | le16_to_cpu(rxdesc->descwb.vlan)); |
95252236 | 947 | NET_STAT(jme).rx_bytes += 4; |
17da69b8 GFT |
948 | } else { |
949 | dev_kfree_skb(skb); | |
95252236 GFT |
950 | } |
951 | } else { | |
952 | jme->jme_rx(skb); | |
953 | } | |
954 | ||
31c221c4 HH |
955 | if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_DEST)) == |
956 | cpu_to_le16(RXWBFLAG_DEST_MUL)) | |
95252236 GFT |
957 | ++(NET_STAT(jme).multicast); |
958 | ||
95252236 GFT |
959 | NET_STAT(jme).rx_bytes += framesize; |
960 | ++(NET_STAT(jme).rx_packets); | |
961 | } | |
962 | ||
963 | jme_set_clean_rxdesc(jme, idx); | |
964 | ||
965 | } | |
966 | ||
967 | static int | |
968 | jme_process_receive(struct jme_adapter *jme, int limit) | |
969 | { | |
970 | struct jme_ring *rxring = &(jme->rxring[0]); | |
971 | struct rxdesc *rxdesc = rxring->desc; | |
972 | int i, j, ccnt, desccnt, mask = jme->rx_ring_mask; | |
973 | ||
974 | if (unlikely(!atomic_dec_and_test(&jme->rx_cleaning))) | |
975 | goto out_inc; | |
976 | ||
977 | if (unlikely(atomic_read(&jme->link_changing) != 1)) | |
978 | goto out_inc; | |
979 | ||
980 | if (unlikely(!netif_carrier_ok(jme->dev))) | |
981 | goto out_inc; | |
982 | ||
983 | i = atomic_read(&rxring->next_to_clean); | |
858b9ced | 984 | while (limit > 0) { |
95252236 GFT |
985 | rxdesc = rxring->desc; |
986 | rxdesc += i; | |
987 | ||
31c221c4 | 988 | if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_OWN)) || |
95252236 GFT |
989 | !(rxdesc->descwb.desccnt & RXWBDCNT_WBCPL)) |
990 | goto out; | |
858b9ced | 991 | --limit; |
95252236 | 992 | |
ea192aa8 | 993 | rmb(); |
95252236 GFT |
994 | desccnt = rxdesc->descwb.desccnt & RXWBDCNT_DCNT; |
995 | ||
996 | if (unlikely(desccnt > 1 || | |
997 | rxdesc->descwb.errstat & RXWBERR_ALLERR)) { | |
998 | ||
999 | if (rxdesc->descwb.errstat & RXWBERR_CRCERR) | |
1000 | ++(NET_STAT(jme).rx_crc_errors); | |
1001 | else if (rxdesc->descwb.errstat & RXWBERR_OVERUN) | |
1002 | ++(NET_STAT(jme).rx_fifo_errors); | |
1003 | else | |
1004 | ++(NET_STAT(jme).rx_errors); | |
1005 | ||
1006 | if (desccnt > 1) | |
1007 | limit -= desccnt - 1; | |
1008 | ||
1009 | for (j = i, ccnt = desccnt ; ccnt-- ; ) { | |
1010 | jme_set_clean_rxdesc(jme, j); | |
1011 | j = (j + 1) & (mask); | |
1012 | } | |
1013 | ||
1014 | } else { | |
1015 | jme_alloc_and_feed_skb(jme, i); | |
1016 | } | |
1017 | ||
1018 | i = (i + desccnt) & (mask); | |
1019 | } | |
1020 | ||
1021 | out: | |
1022 | atomic_set(&rxring->next_to_clean, i); | |
1023 | ||
1024 | out_inc: | |
1025 | atomic_inc(&jme->rx_cleaning); | |
1026 | ||
1027 | return limit > 0 ? limit : 0; | |
1028 | ||
1029 | } | |
1030 | ||
1031 | static void | |
1032 | jme_attempt_pcc(struct dynpcc_info *dpi, int atmp) | |
1033 | { | |
1034 | if (likely(atmp == dpi->cur)) { | |
1035 | dpi->cnt = 0; | |
1036 | return; | |
1037 | } | |
1038 | ||
1039 | if (dpi->attempt == atmp) { | |
1040 | ++(dpi->cnt); | |
1041 | } else { | |
1042 | dpi->attempt = atmp; | |
1043 | dpi->cnt = 0; | |
1044 | } | |
1045 | ||
1046 | } | |
1047 | ||
1048 | static void | |
1049 | jme_dynamic_pcc(struct jme_adapter *jme) | |
1050 | { | |
1051 | register struct dynpcc_info *dpi = &(jme->dpi); | |
1052 | ||
1053 | if ((NET_STAT(jme).rx_bytes - dpi->last_bytes) > PCC_P3_THRESHOLD) | |
1054 | jme_attempt_pcc(dpi, PCC_P3); | |
8e95a202 JP |
1055 | else if ((NET_STAT(jme).rx_packets - dpi->last_pkts) > PCC_P2_THRESHOLD || |
1056 | dpi->intr_cnt > PCC_INTR_THRESHOLD) | |
95252236 GFT |
1057 | jme_attempt_pcc(dpi, PCC_P2); |
1058 | else | |
1059 | jme_attempt_pcc(dpi, PCC_P1); | |
1060 | ||
1061 | if (unlikely(dpi->attempt != dpi->cur && dpi->cnt > 5)) { | |
1062 | if (dpi->attempt < dpi->cur) | |
1063 | tasklet_schedule(&jme->rxclean_task); | |
1064 | jme_set_rx_pcc(jme, dpi->attempt); | |
1065 | dpi->cur = dpi->attempt; | |
1066 | dpi->cnt = 0; | |
1067 | } | |
1068 | } | |
1069 | ||
1070 | static void | |
1071 | jme_start_pcc_timer(struct jme_adapter *jme) | |
1072 | { | |
1073 | struct dynpcc_info *dpi = &(jme->dpi); | |
1074 | dpi->last_bytes = NET_STAT(jme).rx_bytes; | |
1075 | dpi->last_pkts = NET_STAT(jme).rx_packets; | |
1076 | dpi->intr_cnt = 0; | |
1077 | jwrite32(jme, JME_TMCSR, | |
1078 | TMCSR_EN | ((0xFFFFFF - PCC_INTERVAL_US) & TMCSR_CNT)); | |
1079 | } | |
1080 | ||
1081 | static inline void | |
1082 | jme_stop_pcc_timer(struct jme_adapter *jme) | |
1083 | { | |
1084 | jwrite32(jme, JME_TMCSR, 0); | |
1085 | } | |
1086 | ||
1087 | static void | |
1088 | jme_shutdown_nic(struct jme_adapter *jme) | |
1089 | { | |
1090 | u32 phylink; | |
1091 | ||
1092 | phylink = jme_linkstat_from_phy(jme); | |
1093 | ||
1094 | if (!(phylink & PHY_LINK_UP)) { | |
1095 | /* | |
1096 | * Disable all interrupt before issue timer | |
1097 | */ | |
1098 | jme_stop_irq(jme); | |
1099 | jwrite32(jme, JME_TIMER2, TMCSR_EN | 0xFFFFFE); | |
1100 | } | |
1101 | } | |
1102 | ||
1103 | static void | |
1104 | jme_pcc_tasklet(unsigned long arg) | |
1105 | { | |
1106 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1107 | struct net_device *netdev = jme->dev; | |
1108 | ||
1109 | if (unlikely(test_bit(JME_FLAG_SHUTDOWN, &jme->flags))) { | |
1110 | jme_shutdown_nic(jme); | |
1111 | return; | |
1112 | } | |
1113 | ||
1114 | if (unlikely(!netif_carrier_ok(netdev) || | |
1115 | (atomic_read(&jme->link_changing) != 1) | |
1116 | )) { | |
1117 | jme_stop_pcc_timer(jme); | |
1118 | return; | |
1119 | } | |
1120 | ||
1121 | if (!(test_bit(JME_FLAG_POLL, &jme->flags))) | |
1122 | jme_dynamic_pcc(jme); | |
1123 | ||
1124 | jme_start_pcc_timer(jme); | |
1125 | } | |
1126 | ||
1127 | static inline void | |
1128 | jme_polling_mode(struct jme_adapter *jme) | |
1129 | { | |
1130 | jme_set_rx_pcc(jme, PCC_OFF); | |
1131 | } | |
1132 | ||
1133 | static inline void | |
1134 | jme_interrupt_mode(struct jme_adapter *jme) | |
1135 | { | |
1136 | jme_set_rx_pcc(jme, PCC_P1); | |
1137 | } | |
1138 | ||
1139 | static inline int | |
1140 | jme_pseudo_hotplug_enabled(struct jme_adapter *jme) | |
1141 | { | |
1142 | u32 apmc; | |
1143 | apmc = jread32(jme, JME_APMC); | |
1144 | return apmc & JME_APMC_PSEUDO_HP_EN; | |
1145 | } | |
1146 | ||
1147 | static void | |
1148 | jme_start_shutdown_timer(struct jme_adapter *jme) | |
1149 | { | |
1150 | u32 apmc; | |
1151 | ||
1152 | apmc = jread32(jme, JME_APMC) | JME_APMC_PCIE_SD_EN; | |
1153 | apmc &= ~JME_APMC_EPIEN_CTRL; | |
1154 | if (!no_extplug) { | |
1155 | jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_EN); | |
1156 | wmb(); | |
1157 | } | |
1158 | jwrite32f(jme, JME_APMC, apmc); | |
1159 | ||
1160 | jwrite32f(jme, JME_TIMER2, 0); | |
1161 | set_bit(JME_FLAG_SHUTDOWN, &jme->flags); | |
1162 | jwrite32(jme, JME_TMCSR, | |
1163 | TMCSR_EN | ((0xFFFFFF - APMC_PHP_SHUTDOWN_DELAY) & TMCSR_CNT)); | |
1164 | } | |
1165 | ||
1166 | static void | |
1167 | jme_stop_shutdown_timer(struct jme_adapter *jme) | |
1168 | { | |
1169 | u32 apmc; | |
1170 | ||
1171 | jwrite32f(jme, JME_TMCSR, 0); | |
1172 | jwrite32f(jme, JME_TIMER2, 0); | |
1173 | clear_bit(JME_FLAG_SHUTDOWN, &jme->flags); | |
1174 | ||
1175 | apmc = jread32(jme, JME_APMC); | |
1176 | apmc &= ~(JME_APMC_PCIE_SD_EN | JME_APMC_EPIEN_CTRL); | |
1177 | jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_DIS); | |
1178 | wmb(); | |
1179 | jwrite32f(jme, JME_APMC, apmc); | |
1180 | } | |
1181 | ||
1182 | static void | |
1183 | jme_link_change_tasklet(unsigned long arg) | |
1184 | { | |
1185 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1186 | struct net_device *netdev = jme->dev; | |
1187 | int rc; | |
1188 | ||
1189 | while (!atomic_dec_and_test(&jme->link_changing)) { | |
1190 | atomic_inc(&jme->link_changing); | |
49d70c48 | 1191 | netif_info(jme, intr, jme->dev, "Get link change lock failed\n"); |
95252236 | 1192 | while (atomic_read(&jme->link_changing) != 1) |
49d70c48 | 1193 | netif_info(jme, intr, jme->dev, "Waiting link change lock\n"); |
95252236 GFT |
1194 | } |
1195 | ||
1196 | if (jme_check_link(netdev, 1) && jme->old_mtu == netdev->mtu) | |
1197 | goto out; | |
1198 | ||
1199 | jme->old_mtu = netdev->mtu; | |
1200 | netif_stop_queue(netdev); | |
1201 | if (jme_pseudo_hotplug_enabled(jme)) | |
1202 | jme_stop_shutdown_timer(jme); | |
1203 | ||
1204 | jme_stop_pcc_timer(jme); | |
1205 | tasklet_disable(&jme->txclean_task); | |
1206 | tasklet_disable(&jme->rxclean_task); | |
1207 | tasklet_disable(&jme->rxempty_task); | |
1208 | ||
1209 | if (netif_carrier_ok(netdev)) { | |
1210 | jme_reset_ghc_speed(jme); | |
1211 | jme_disable_rx_engine(jme); | |
1212 | jme_disable_tx_engine(jme); | |
1213 | jme_reset_mac_processor(jme); | |
1214 | jme_free_rx_resources(jme); | |
1215 | jme_free_tx_resources(jme); | |
1216 | ||
1217 | if (test_bit(JME_FLAG_POLL, &jme->flags)) | |
1218 | jme_polling_mode(jme); | |
1219 | ||
1220 | netif_carrier_off(netdev); | |
1221 | } | |
1222 | ||
1223 | jme_check_link(netdev, 0); | |
1224 | if (netif_carrier_ok(netdev)) { | |
1225 | rc = jme_setup_rx_resources(jme); | |
1226 | if (rc) { | |
49d70c48 | 1227 | pr_err("Allocating resources for RX error, Device STOPPED!\n"); |
95252236 GFT |
1228 | goto out_enable_tasklet; |
1229 | } | |
1230 | ||
1231 | rc = jme_setup_tx_resources(jme); | |
1232 | if (rc) { | |
49d70c48 | 1233 | pr_err("Allocating resources for TX error, Device STOPPED!\n"); |
95252236 GFT |
1234 | goto err_out_free_rx_resources; |
1235 | } | |
1236 | ||
1237 | jme_enable_rx_engine(jme); | |
1238 | jme_enable_tx_engine(jme); | |
1239 | ||
1240 | netif_start_queue(netdev); | |
1241 | ||
1242 | if (test_bit(JME_FLAG_POLL, &jme->flags)) | |
1243 | jme_interrupt_mode(jme); | |
1244 | ||
1245 | jme_start_pcc_timer(jme); | |
1246 | } else if (jme_pseudo_hotplug_enabled(jme)) { | |
1247 | jme_start_shutdown_timer(jme); | |
1248 | } | |
1249 | ||
1250 | goto out_enable_tasklet; | |
1251 | ||
1252 | err_out_free_rx_resources: | |
1253 | jme_free_rx_resources(jme); | |
1254 | out_enable_tasklet: | |
1255 | tasklet_enable(&jme->txclean_task); | |
1256 | tasklet_hi_enable(&jme->rxclean_task); | |
1257 | tasklet_hi_enable(&jme->rxempty_task); | |
1258 | out: | |
1259 | atomic_inc(&jme->link_changing); | |
1260 | } | |
1261 | ||
1262 | static void | |
1263 | jme_rx_clean_tasklet(unsigned long arg) | |
1264 | { | |
1265 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1266 | struct dynpcc_info *dpi = &(jme->dpi); | |
1267 | ||
1268 | jme_process_receive(jme, jme->rx_ring_size); | |
1269 | ++(dpi->intr_cnt); | |
1270 | ||
1271 | } | |
1272 | ||
1273 | static int | |
1274 | jme_poll(JME_NAPI_HOLDER(holder), JME_NAPI_WEIGHT(budget)) | |
1275 | { | |
1276 | struct jme_adapter *jme = jme_napi_priv(holder); | |
95252236 GFT |
1277 | int rest; |
1278 | ||
1279 | rest = jme_process_receive(jme, JME_NAPI_WEIGHT_VAL(budget)); | |
1280 | ||
1281 | while (atomic_read(&jme->rx_empty) > 0) { | |
1282 | atomic_dec(&jme->rx_empty); | |
1283 | ++(NET_STAT(jme).rx_dropped); | |
1284 | jme_restart_rx_engine(jme); | |
1285 | } | |
1286 | atomic_inc(&jme->rx_empty); | |
1287 | ||
1288 | if (rest) { | |
1289 | JME_RX_COMPLETE(netdev, holder); | |
1290 | jme_interrupt_mode(jme); | |
1291 | } | |
1292 | ||
1293 | JME_NAPI_WEIGHT_SET(budget, rest); | |
1294 | return JME_NAPI_WEIGHT_VAL(budget) - rest; | |
1295 | } | |
1296 | ||
1297 | static void | |
1298 | jme_rx_empty_tasklet(unsigned long arg) | |
1299 | { | |
1300 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1301 | ||
1302 | if (unlikely(atomic_read(&jme->link_changing) != 1)) | |
1303 | return; | |
1304 | ||
1305 | if (unlikely(!netif_carrier_ok(jme->dev))) | |
1306 | return; | |
1307 | ||
f8502ce4 | 1308 | netif_info(jme, rx_status, jme->dev, "RX Queue Full!\n"); |
95252236 GFT |
1309 | |
1310 | jme_rx_clean_tasklet(arg); | |
1311 | ||
1312 | while (atomic_read(&jme->rx_empty) > 0) { | |
1313 | atomic_dec(&jme->rx_empty); | |
1314 | ++(NET_STAT(jme).rx_dropped); | |
1315 | jme_restart_rx_engine(jme); | |
1316 | } | |
1317 | atomic_inc(&jme->rx_empty); | |
1318 | } | |
1319 | ||
1320 | static void | |
1321 | jme_wake_queue_if_stopped(struct jme_adapter *jme) | |
1322 | { | |
eacf69a1 | 1323 | struct jme_ring *txring = &(jme->txring[0]); |
95252236 GFT |
1324 | |
1325 | smp_wmb(); | |
1326 | if (unlikely(netif_queue_stopped(jme->dev) && | |
1327 | atomic_read(&txring->nr_free) >= (jme->tx_wake_threshold))) { | |
49d70c48 | 1328 | netif_info(jme, tx_done, jme->dev, "TX Queue Waked\n"); |
95252236 GFT |
1329 | netif_wake_queue(jme->dev); |
1330 | } | |
1331 | ||
1332 | } | |
1333 | ||
1334 | static void | |
1335 | jme_tx_clean_tasklet(unsigned long arg) | |
1336 | { | |
1337 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1338 | struct jme_ring *txring = &(jme->txring[0]); | |
1339 | struct txdesc *txdesc = txring->desc; | |
1340 | struct jme_buffer_info *txbi = txring->bufinf, *ctxbi, *ttxbi; | |
1341 | int i, j, cnt = 0, max, err, mask; | |
1342 | ||
49d70c48 | 1343 | tx_dbg(jme, "Into txclean\n"); |
95252236 GFT |
1344 | |
1345 | if (unlikely(!atomic_dec_and_test(&jme->tx_cleaning))) | |
1346 | goto out; | |
1347 | ||
1348 | if (unlikely(atomic_read(&jme->link_changing) != 1)) | |
1349 | goto out; | |
1350 | ||
1351 | if (unlikely(!netif_carrier_ok(jme->dev))) | |
1352 | goto out; | |
1353 | ||
1354 | max = jme->tx_ring_size - atomic_read(&txring->nr_free); | |
1355 | mask = jme->tx_ring_mask; | |
1356 | ||
1357 | for (i = atomic_read(&txring->next_to_clean) ; cnt < max ; ) { | |
1358 | ||
1359 | ctxbi = txbi + i; | |
1360 | ||
1361 | if (likely(ctxbi->skb && | |
1362 | !(txdesc[i].descwb.flags & TXWBFLAG_OWN))) { | |
1363 | ||
1364 | tx_dbg(jme, "txclean: %d+%d@%lu\n", | |
49d70c48 | 1365 | i, ctxbi->nr_desc, jiffies); |
95252236 GFT |
1366 | |
1367 | err = txdesc[i].descwb.flags & TXWBFLAG_ALLERR; | |
1368 | ||
1369 | for (j = 1 ; j < ctxbi->nr_desc ; ++j) { | |
1370 | ttxbi = txbi + ((i + j) & (mask)); | |
1371 | txdesc[(i + j) & (mask)].dw[0] = 0; | |
1372 | ||
1373 | pci_unmap_page(jme->pdev, | |
1374 | ttxbi->mapping, | |
1375 | ttxbi->len, | |
1376 | PCI_DMA_TODEVICE); | |
1377 | ||
1378 | ttxbi->mapping = 0; | |
1379 | ttxbi->len = 0; | |
1380 | } | |
1381 | ||
1382 | dev_kfree_skb(ctxbi->skb); | |
1383 | ||
1384 | cnt += ctxbi->nr_desc; | |
1385 | ||
1386 | if (unlikely(err)) { | |
1387 | ++(NET_STAT(jme).tx_carrier_errors); | |
1388 | } else { | |
1389 | ++(NET_STAT(jme).tx_packets); | |
1390 | NET_STAT(jme).tx_bytes += ctxbi->len; | |
1391 | } | |
1392 | ||
1393 | ctxbi->skb = NULL; | |
1394 | ctxbi->len = 0; | |
1395 | ctxbi->start_xmit = 0; | |
1396 | ||
1397 | } else { | |
1398 | break; | |
1399 | } | |
1400 | ||
1401 | i = (i + ctxbi->nr_desc) & mask; | |
1402 | ||
1403 | ctxbi->nr_desc = 0; | |
1404 | } | |
1405 | ||
49d70c48 | 1406 | tx_dbg(jme, "txclean: done %d@%lu\n", i, jiffies); |
95252236 GFT |
1407 | atomic_set(&txring->next_to_clean, i); |
1408 | atomic_add(cnt, &txring->nr_free); | |
1409 | ||
1410 | jme_wake_queue_if_stopped(jme); | |
1411 | ||
1412 | out: | |
1413 | atomic_inc(&jme->tx_cleaning); | |
1414 | } | |
1415 | ||
1416 | static void | |
1417 | jme_intr_msi(struct jme_adapter *jme, u32 intrstat) | |
1418 | { | |
1419 | /* | |
1420 | * Disable interrupt | |
1421 | */ | |
1422 | jwrite32f(jme, JME_IENC, INTR_ENABLE); | |
1423 | ||
1424 | if (intrstat & (INTR_LINKCH | INTR_SWINTR)) { | |
1425 | /* | |
1426 | * Link change event is critical | |
1427 | * all other events are ignored | |
1428 | */ | |
1429 | jwrite32(jme, JME_IEVE, intrstat); | |
1430 | tasklet_schedule(&jme->linkch_task); | |
1431 | goto out_reenable; | |
1432 | } | |
1433 | ||
1434 | if (intrstat & INTR_TMINTR) { | |
1435 | jwrite32(jme, JME_IEVE, INTR_TMINTR); | |
1436 | tasklet_schedule(&jme->pcc_task); | |
1437 | } | |
1438 | ||
1439 | if (intrstat & (INTR_PCCTXTO | INTR_PCCTX)) { | |
1440 | jwrite32(jme, JME_IEVE, INTR_PCCTXTO | INTR_PCCTX | INTR_TX0); | |
1441 | tasklet_schedule(&jme->txclean_task); | |
1442 | } | |
1443 | ||
1444 | if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { | |
1445 | jwrite32(jme, JME_IEVE, (intrstat & (INTR_PCCRX0TO | | |
1446 | INTR_PCCRX0 | | |
1447 | INTR_RX0EMP)) | | |
1448 | INTR_RX0); | |
1449 | } | |
1450 | ||
1451 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
1452 | if (intrstat & INTR_RX0EMP) | |
1453 | atomic_inc(&jme->rx_empty); | |
1454 | ||
1455 | if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { | |
1456 | if (likely(JME_RX_SCHEDULE_PREP(jme))) { | |
1457 | jme_polling_mode(jme); | |
1458 | JME_RX_SCHEDULE(jme); | |
1459 | } | |
1460 | } | |
1461 | } else { | |
1462 | if (intrstat & INTR_RX0EMP) { | |
1463 | atomic_inc(&jme->rx_empty); | |
1464 | tasklet_hi_schedule(&jme->rxempty_task); | |
1465 | } else if (intrstat & (INTR_PCCRX0TO | INTR_PCCRX0)) { | |
1466 | tasklet_hi_schedule(&jme->rxclean_task); | |
1467 | } | |
1468 | } | |
1469 | ||
1470 | out_reenable: | |
1471 | /* | |
1472 | * Re-enable interrupt | |
1473 | */ | |
1474 | jwrite32f(jme, JME_IENS, INTR_ENABLE); | |
1475 | } | |
1476 | ||
1477 | static irqreturn_t | |
1478 | jme_intr(int irq, void *dev_id) | |
1479 | { | |
1480 | struct net_device *netdev = dev_id; | |
1481 | struct jme_adapter *jme = netdev_priv(netdev); | |
1482 | u32 intrstat; | |
1483 | ||
1484 | intrstat = jread32(jme, JME_IEVE); | |
1485 | ||
1486 | /* | |
1487 | * Check if it's really an interrupt for us | |
1488 | */ | |
576b5223 | 1489 | if (unlikely((intrstat & INTR_ENABLE) == 0)) |
95252236 GFT |
1490 | return IRQ_NONE; |
1491 | ||
1492 | /* | |
1493 | * Check if the device still exist | |
1494 | */ | |
1495 | if (unlikely(intrstat == ~((typeof(intrstat))0))) | |
1496 | return IRQ_NONE; | |
1497 | ||
1498 | jme_intr_msi(jme, intrstat); | |
1499 | ||
1500 | return IRQ_HANDLED; | |
1501 | } | |
1502 | ||
1503 | static irqreturn_t | |
1504 | jme_msi(int irq, void *dev_id) | |
1505 | { | |
1506 | struct net_device *netdev = dev_id; | |
1507 | struct jme_adapter *jme = netdev_priv(netdev); | |
1508 | u32 intrstat; | |
1509 | ||
d1dfa1d1 | 1510 | intrstat = jread32(jme, JME_IEVE); |
95252236 GFT |
1511 | |
1512 | jme_intr_msi(jme, intrstat); | |
1513 | ||
1514 | return IRQ_HANDLED; | |
1515 | } | |
1516 | ||
1517 | static void | |
1518 | jme_reset_link(struct jme_adapter *jme) | |
1519 | { | |
1520 | jwrite32(jme, JME_TMCSR, TMCSR_SWIT); | |
1521 | } | |
1522 | ||
1523 | static void | |
1524 | jme_restart_an(struct jme_adapter *jme) | |
1525 | { | |
1526 | u32 bmcr; | |
1527 | ||
1528 | spin_lock_bh(&jme->phy_lock); | |
1529 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); | |
1530 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
1531 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr); | |
1532 | spin_unlock_bh(&jme->phy_lock); | |
1533 | } | |
1534 | ||
1535 | static int | |
1536 | jme_request_irq(struct jme_adapter *jme) | |
1537 | { | |
1538 | int rc; | |
1539 | struct net_device *netdev = jme->dev; | |
1540 | irq_handler_t handler = jme_intr; | |
1541 | int irq_flags = IRQF_SHARED; | |
1542 | ||
1543 | if (!pci_enable_msi(jme->pdev)) { | |
1544 | set_bit(JME_FLAG_MSI, &jme->flags); | |
1545 | handler = jme_msi; | |
1546 | irq_flags = 0; | |
1547 | } | |
1548 | ||
1549 | rc = request_irq(jme->pdev->irq, handler, irq_flags, netdev->name, | |
1550 | netdev); | |
1551 | if (rc) { | |
49d70c48 JP |
1552 | netdev_err(netdev, |
1553 | "Unable to request %s interrupt (return: %d)\n", | |
1554 | test_bit(JME_FLAG_MSI, &jme->flags) ? "MSI" : "INTx", | |
1555 | rc); | |
95252236 GFT |
1556 | |
1557 | if (test_bit(JME_FLAG_MSI, &jme->flags)) { | |
1558 | pci_disable_msi(jme->pdev); | |
1559 | clear_bit(JME_FLAG_MSI, &jme->flags); | |
1560 | } | |
1561 | } else { | |
1562 | netdev->irq = jme->pdev->irq; | |
1563 | } | |
1564 | ||
1565 | return rc; | |
1566 | } | |
1567 | ||
1568 | static void | |
1569 | jme_free_irq(struct jme_adapter *jme) | |
1570 | { | |
1571 | free_irq(jme->pdev->irq, jme->dev); | |
1572 | if (test_bit(JME_FLAG_MSI, &jme->flags)) { | |
1573 | pci_disable_msi(jme->pdev); | |
1574 | clear_bit(JME_FLAG_MSI, &jme->flags); | |
1575 | jme->dev->irq = jme->pdev->irq; | |
1576 | } | |
1577 | } | |
1578 | ||
c8a8684d GFT |
1579 | static inline void |
1580 | jme_phy_on(struct jme_adapter *jme) | |
1581 | { | |
1582 | u32 bmcr; | |
1583 | ||
1584 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); | |
1585 | bmcr &= ~BMCR_PDOWN; | |
1586 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr); | |
1587 | } | |
1588 | ||
95252236 GFT |
1589 | static int |
1590 | jme_open(struct net_device *netdev) | |
1591 | { | |
1592 | struct jme_adapter *jme = netdev_priv(netdev); | |
1593 | int rc; | |
1594 | ||
1595 | jme_clear_pm(jme); | |
1596 | JME_NAPI_ENABLE(jme); | |
1597 | ||
38ed0c21 | 1598 | tasklet_enable(&jme->linkch_task); |
95252236 GFT |
1599 | tasklet_enable(&jme->txclean_task); |
1600 | tasklet_hi_enable(&jme->rxclean_task); | |
1601 | tasklet_hi_enable(&jme->rxempty_task); | |
1602 | ||
1603 | rc = jme_request_irq(jme); | |
1604 | if (rc) | |
1605 | goto err_out; | |
1606 | ||
95252236 GFT |
1607 | jme_start_irq(jme); |
1608 | ||
c8a8684d GFT |
1609 | if (test_bit(JME_FLAG_SSET, &jme->flags)) { |
1610 | jme_phy_on(jme); | |
95252236 | 1611 | jme_set_settings(netdev, &jme->old_ecmd); |
c8a8684d | 1612 | } else { |
95252236 | 1613 | jme_reset_phy_processor(jme); |
c8a8684d | 1614 | } |
95252236 GFT |
1615 | |
1616 | jme_reset_link(jme); | |
1617 | ||
1618 | return 0; | |
1619 | ||
1620 | err_out: | |
1621 | netif_stop_queue(netdev); | |
1622 | netif_carrier_off(netdev); | |
1623 | return rc; | |
1624 | } | |
1625 | ||
1626 | static void | |
1627 | jme_set_100m_half(struct jme_adapter *jme) | |
1628 | { | |
1629 | u32 bmcr, tmp; | |
1630 | ||
1c557819 | 1631 | jme_phy_on(jme); |
95252236 GFT |
1632 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); |
1633 | tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 | | |
1634 | BMCR_SPEED1000 | BMCR_FULLDPLX); | |
1635 | tmp |= BMCR_SPEED100; | |
1636 | ||
1637 | if (bmcr != tmp) | |
1638 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, tmp); | |
1639 | ||
1640 | if (jme->fpgaver) | |
1641 | jwrite32(jme, JME_GHC, GHC_SPEED_100M | GHC_LINK_POLL); | |
1642 | else | |
1643 | jwrite32(jme, JME_GHC, GHC_SPEED_100M); | |
1644 | } | |
1645 | ||
1646 | #define JME_WAIT_LINK_TIME 2000 /* 2000ms */ | |
1647 | static void | |
1648 | jme_wait_link(struct jme_adapter *jme) | |
1649 | { | |
1650 | u32 phylink, to = JME_WAIT_LINK_TIME; | |
1651 | ||
1652 | mdelay(1000); | |
1653 | phylink = jme_linkstat_from_phy(jme); | |
1654 | while (!(phylink & PHY_LINK_UP) && (to -= 10) > 0) { | |
1655 | mdelay(10); | |
1656 | phylink = jme_linkstat_from_phy(jme); | |
1657 | } | |
1658 | } | |
1659 | ||
1660 | static inline void | |
1661 | jme_phy_off(struct jme_adapter *jme) | |
1662 | { | |
1663 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, BMCR_PDOWN); | |
1664 | } | |
1665 | ||
1c557819 GFT |
1666 | static void |
1667 | jme_powersave_phy(struct jme_adapter *jme) | |
1668 | { | |
1669 | if (jme->reg_pmcs) { | |
1670 | jme_set_100m_half(jme); | |
1671 | ||
1672 | if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) | |
1673 | jme_wait_link(jme); | |
1674 | ||
1675 | jwrite32(jme, JME_PMCS, jme->reg_pmcs); | |
1676 | } else { | |
1677 | jme_phy_off(jme); | |
1678 | } | |
1679 | } | |
1680 | ||
95252236 GFT |
1681 | static int |
1682 | jme_close(struct net_device *netdev) | |
1683 | { | |
1684 | struct jme_adapter *jme = netdev_priv(netdev); | |
1685 | ||
1686 | netif_stop_queue(netdev); | |
1687 | netif_carrier_off(netdev); | |
1688 | ||
1689 | jme_stop_irq(jme); | |
95252236 GFT |
1690 | jme_free_irq(jme); |
1691 | ||
1692 | JME_NAPI_DISABLE(jme); | |
1693 | ||
38ed0c21 GFT |
1694 | tasklet_disable(&jme->linkch_task); |
1695 | tasklet_disable(&jme->txclean_task); | |
1696 | tasklet_disable(&jme->rxclean_task); | |
1697 | tasklet_disable(&jme->rxempty_task); | |
95252236 GFT |
1698 | |
1699 | jme_reset_ghc_speed(jme); | |
1700 | jme_disable_rx_engine(jme); | |
1701 | jme_disable_tx_engine(jme); | |
1702 | jme_reset_mac_processor(jme); | |
1703 | jme_free_rx_resources(jme); | |
1704 | jme_free_tx_resources(jme); | |
1705 | jme->phylink = 0; | |
1706 | jme_phy_off(jme); | |
1707 | ||
1708 | return 0; | |
1709 | } | |
1710 | ||
1711 | static int | |
1712 | jme_alloc_txdesc(struct jme_adapter *jme, | |
1713 | struct sk_buff *skb) | |
1714 | { | |
eacf69a1 | 1715 | struct jme_ring *txring = &(jme->txring[0]); |
95252236 GFT |
1716 | int idx, nr_alloc, mask = jme->tx_ring_mask; |
1717 | ||
1718 | idx = txring->next_to_use; | |
1719 | nr_alloc = skb_shinfo(skb)->nr_frags + 2; | |
1720 | ||
1721 | if (unlikely(atomic_read(&txring->nr_free) < nr_alloc)) | |
1722 | return -1; | |
1723 | ||
1724 | atomic_sub(nr_alloc, &txring->nr_free); | |
1725 | ||
1726 | txring->next_to_use = (txring->next_to_use + nr_alloc) & mask; | |
1727 | ||
1728 | return idx; | |
1729 | } | |
1730 | ||
1731 | static void | |
1732 | jme_fill_tx_map(struct pci_dev *pdev, | |
1733 | struct txdesc *txdesc, | |
1734 | struct jme_buffer_info *txbi, | |
1735 | struct page *page, | |
1736 | u32 page_offset, | |
1737 | u32 len, | |
1738 | u8 hidma) | |
1739 | { | |
1740 | dma_addr_t dmaaddr; | |
1741 | ||
1742 | dmaaddr = pci_map_page(pdev, | |
1743 | page, | |
1744 | page_offset, | |
1745 | len, | |
1746 | PCI_DMA_TODEVICE); | |
1747 | ||
1748 | pci_dma_sync_single_for_device(pdev, | |
1749 | dmaaddr, | |
1750 | len, | |
1751 | PCI_DMA_TODEVICE); | |
1752 | ||
1753 | txdesc->dw[0] = 0; | |
1754 | txdesc->dw[1] = 0; | |
1755 | txdesc->desc2.flags = TXFLAG_OWN; | |
1756 | txdesc->desc2.flags |= (hidma) ? TXFLAG_64BIT : 0; | |
1757 | txdesc->desc2.datalen = cpu_to_le16(len); | |
1758 | txdesc->desc2.bufaddrh = cpu_to_le32((__u64)dmaaddr >> 32); | |
1759 | txdesc->desc2.bufaddrl = cpu_to_le32( | |
1760 | (__u64)dmaaddr & 0xFFFFFFFFUL); | |
1761 | ||
1762 | txbi->mapping = dmaaddr; | |
1763 | txbi->len = len; | |
1764 | } | |
1765 | ||
1766 | static void | |
1767 | jme_map_tx_skb(struct jme_adapter *jme, struct sk_buff *skb, int idx) | |
1768 | { | |
eacf69a1 | 1769 | struct jme_ring *txring = &(jme->txring[0]); |
95252236 GFT |
1770 | struct txdesc *txdesc = txring->desc, *ctxdesc; |
1771 | struct jme_buffer_info *txbi = txring->bufinf, *ctxbi; | |
1772 | u8 hidma = jme->dev->features & NETIF_F_HIGHDMA; | |
1773 | int i, nr_frags = skb_shinfo(skb)->nr_frags; | |
1774 | int mask = jme->tx_ring_mask; | |
1775 | struct skb_frag_struct *frag; | |
1776 | u32 len; | |
1777 | ||
1778 | for (i = 0 ; i < nr_frags ; ++i) { | |
1779 | frag = &skb_shinfo(skb)->frags[i]; | |
1780 | ctxdesc = txdesc + ((idx + i + 2) & (mask)); | |
1781 | ctxbi = txbi + ((idx + i + 2) & (mask)); | |
1782 | ||
1783 | jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, frag->page, | |
1784 | frag->page_offset, frag->size, hidma); | |
1785 | } | |
1786 | ||
1787 | len = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len; | |
1788 | ctxdesc = txdesc + ((idx + 1) & (mask)); | |
1789 | ctxbi = txbi + ((idx + 1) & (mask)); | |
1790 | jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, virt_to_page(skb->data), | |
1791 | offset_in_page(skb->data), len, hidma); | |
1792 | ||
1793 | } | |
1794 | ||
1795 | static int | |
1796 | jme_expand_header(struct jme_adapter *jme, struct sk_buff *skb) | |
1797 | { | |
1798 | if (unlikely(skb_shinfo(skb)->gso_size && | |
1799 | skb_header_cloned(skb) && | |
1800 | pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) { | |
1801 | dev_kfree_skb(skb); | |
1802 | return -1; | |
1803 | } | |
1804 | ||
1805 | return 0; | |
1806 | } | |
1807 | ||
1808 | static int | |
31c221c4 | 1809 | jme_tx_tso(struct sk_buff *skb, __le16 *mss, u8 *flags) |
95252236 | 1810 | { |
31c221c4 | 1811 | *mss = cpu_to_le16(skb_shinfo(skb)->gso_size << TXDESC_MSS_SHIFT); |
95252236 GFT |
1812 | if (*mss) { |
1813 | *flags |= TXFLAG_LSEN; | |
1814 | ||
1815 | if (skb->protocol == htons(ETH_P_IP)) { | |
1816 | struct iphdr *iph = ip_hdr(skb); | |
1817 | ||
1818 | iph->check = 0; | |
1819 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
1820 | iph->daddr, 0, | |
1821 | IPPROTO_TCP, | |
1822 | 0); | |
1823 | } else { | |
1824 | struct ipv6hdr *ip6h = ipv6_hdr(skb); | |
1825 | ||
1826 | tcp_hdr(skb)->check = ~csum_ipv6_magic(&ip6h->saddr, | |
1827 | &ip6h->daddr, 0, | |
1828 | IPPROTO_TCP, | |
1829 | 0); | |
1830 | } | |
1831 | ||
1832 | return 0; | |
1833 | } | |
1834 | ||
1835 | return 1; | |
1836 | } | |
1837 | ||
1838 | static void | |
1839 | jme_tx_csum(struct jme_adapter *jme, struct sk_buff *skb, u8 *flags) | |
1840 | { | |
1841 | if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
1842 | u8 ip_proto; | |
1843 | ||
1844 | switch (skb->protocol) { | |
1845 | case htons(ETH_P_IP): | |
1846 | ip_proto = ip_hdr(skb)->protocol; | |
1847 | break; | |
1848 | case htons(ETH_P_IPV6): | |
1849 | ip_proto = ipv6_hdr(skb)->nexthdr; | |
1850 | break; | |
1851 | default: | |
1852 | ip_proto = 0; | |
1853 | break; | |
1854 | } | |
1855 | ||
1856 | switch (ip_proto) { | |
1857 | case IPPROTO_TCP: | |
1858 | *flags |= TXFLAG_TCPCS; | |
1859 | break; | |
1860 | case IPPROTO_UDP: | |
1861 | *flags |= TXFLAG_UDPCS; | |
1862 | break; | |
1863 | default: | |
49d70c48 | 1864 | netif_err(jme, tx_err, jme->dev, "Error upper layer protocol\n"); |
95252236 GFT |
1865 | break; |
1866 | } | |
1867 | } | |
1868 | } | |
1869 | ||
1870 | static inline void | |
31c221c4 | 1871 | jme_tx_vlan(struct sk_buff *skb, __le16 *vlan, u8 *flags) |
95252236 GFT |
1872 | { |
1873 | if (vlan_tx_tag_present(skb)) { | |
1874 | *flags |= TXFLAG_TAGON; | |
31c221c4 | 1875 | *vlan = cpu_to_le16(vlan_tx_tag_get(skb)); |
95252236 GFT |
1876 | } |
1877 | } | |
1878 | ||
1879 | static int | |
7f7fd2da | 1880 | jme_fill_tx_desc(struct jme_adapter *jme, struct sk_buff *skb, int idx) |
95252236 | 1881 | { |
eacf69a1 | 1882 | struct jme_ring *txring = &(jme->txring[0]); |
95252236 GFT |
1883 | struct txdesc *txdesc; |
1884 | struct jme_buffer_info *txbi; | |
1885 | u8 flags; | |
1886 | ||
1887 | txdesc = (struct txdesc *)txring->desc + idx; | |
1888 | txbi = txring->bufinf + idx; | |
1889 | ||
1890 | txdesc->dw[0] = 0; | |
1891 | txdesc->dw[1] = 0; | |
1892 | txdesc->dw[2] = 0; | |
1893 | txdesc->dw[3] = 0; | |
1894 | txdesc->desc1.pktsize = cpu_to_le16(skb->len); | |
1895 | /* | |
1896 | * Set OWN bit at final. | |
1897 | * When kernel transmit faster than NIC. | |
1898 | * And NIC trying to send this descriptor before we tell | |
1899 | * it to start sending this TX queue. | |
1900 | * Other fields are already filled correctly. | |
1901 | */ | |
1902 | wmb(); | |
1903 | flags = TXFLAG_OWN | TXFLAG_INT; | |
1904 | /* | |
1905 | * Set checksum flags while not tso | |
1906 | */ | |
1907 | if (jme_tx_tso(skb, &txdesc->desc1.mss, &flags)) | |
1908 | jme_tx_csum(jme, skb, &flags); | |
1909 | jme_tx_vlan(skb, &txdesc->desc1.vlan, &flags); | |
7f7fd2da | 1910 | jme_map_tx_skb(jme, skb, idx); |
95252236 GFT |
1911 | txdesc->desc1.flags = flags; |
1912 | /* | |
1913 | * Set tx buffer info after telling NIC to send | |
1914 | * For better tx_clean timing | |
1915 | */ | |
1916 | wmb(); | |
1917 | txbi->nr_desc = skb_shinfo(skb)->nr_frags + 2; | |
1918 | txbi->skb = skb; | |
1919 | txbi->len = skb->len; | |
1920 | txbi->start_xmit = jiffies; | |
1921 | if (!txbi->start_xmit) | |
1922 | txbi->start_xmit = (0UL-1); | |
1923 | ||
1924 | return 0; | |
1925 | } | |
1926 | ||
1927 | static void | |
1928 | jme_stop_queue_if_full(struct jme_adapter *jme) | |
1929 | { | |
eacf69a1 | 1930 | struct jme_ring *txring = &(jme->txring[0]); |
95252236 GFT |
1931 | struct jme_buffer_info *txbi = txring->bufinf; |
1932 | int idx = atomic_read(&txring->next_to_clean); | |
1933 | ||
1934 | txbi += idx; | |
1935 | ||
1936 | smp_wmb(); | |
1937 | if (unlikely(atomic_read(&txring->nr_free) < (MAX_SKB_FRAGS+2))) { | |
1938 | netif_stop_queue(jme->dev); | |
49d70c48 | 1939 | netif_info(jme, tx_queued, jme->dev, "TX Queue Paused\n"); |
95252236 GFT |
1940 | smp_wmb(); |
1941 | if (atomic_read(&txring->nr_free) | |
1942 | >= (jme->tx_wake_threshold)) { | |
1943 | netif_wake_queue(jme->dev); | |
49d70c48 | 1944 | netif_info(jme, tx_queued, jme->dev, "TX Queue Fast Waked\n"); |
95252236 GFT |
1945 | } |
1946 | } | |
1947 | ||
1948 | if (unlikely(txbi->start_xmit && | |
1949 | (jiffies - txbi->start_xmit) >= TX_TIMEOUT && | |
1950 | txbi->skb)) { | |
1951 | netif_stop_queue(jme->dev); | |
49d70c48 JP |
1952 | netif_info(jme, tx_queued, jme->dev, |
1953 | "TX Queue Stopped %d@%lu\n", idx, jiffies); | |
95252236 GFT |
1954 | } |
1955 | } | |
1956 | ||
1957 | /* | |
1958 | * This function is already protected by netif_tx_lock() | |
1959 | */ | |
1960 | ||
61357325 | 1961 | static netdev_tx_t |
95252236 GFT |
1962 | jme_start_xmit(struct sk_buff *skb, struct net_device *netdev) |
1963 | { | |
1964 | struct jme_adapter *jme = netdev_priv(netdev); | |
1965 | int idx; | |
1966 | ||
1967 | if (unlikely(jme_expand_header(jme, skb))) { | |
1968 | ++(NET_STAT(jme).tx_dropped); | |
1969 | return NETDEV_TX_OK; | |
1970 | } | |
1971 | ||
1972 | idx = jme_alloc_txdesc(jme, skb); | |
1973 | ||
1974 | if (unlikely(idx < 0)) { | |
1975 | netif_stop_queue(netdev); | |
49d70c48 JP |
1976 | netif_err(jme, tx_err, jme->dev, |
1977 | "BUG! Tx ring full when queue awake!\n"); | |
95252236 GFT |
1978 | |
1979 | return NETDEV_TX_BUSY; | |
1980 | } | |
1981 | ||
7f7fd2da | 1982 | jme_fill_tx_desc(jme, skb, idx); |
95252236 GFT |
1983 | |
1984 | jwrite32(jme, JME_TXCS, jme->reg_txcs | | |
1985 | TXCS_SELECT_QUEUE0 | | |
1986 | TXCS_QUEUE0S | | |
1987 | TXCS_ENABLE); | |
95252236 | 1988 | |
49d70c48 JP |
1989 | tx_dbg(jme, "xmit: %d+%d@%lu\n", |
1990 | idx, skb_shinfo(skb)->nr_frags + 2, jiffies); | |
95252236 GFT |
1991 | jme_stop_queue_if_full(jme); |
1992 | ||
1993 | return NETDEV_TX_OK; | |
1994 | } | |
1995 | ||
1996 | static int | |
1997 | jme_set_macaddr(struct net_device *netdev, void *p) | |
1998 | { | |
1999 | struct jme_adapter *jme = netdev_priv(netdev); | |
2000 | struct sockaddr *addr = p; | |
2001 | u32 val; | |
2002 | ||
2003 | if (netif_running(netdev)) | |
2004 | return -EBUSY; | |
2005 | ||
2006 | spin_lock_bh(&jme->macaddr_lock); | |
2007 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
2008 | ||
2009 | val = (addr->sa_data[3] & 0xff) << 24 | | |
2010 | (addr->sa_data[2] & 0xff) << 16 | | |
2011 | (addr->sa_data[1] & 0xff) << 8 | | |
2012 | (addr->sa_data[0] & 0xff); | |
2013 | jwrite32(jme, JME_RXUMA_LO, val); | |
2014 | val = (addr->sa_data[5] & 0xff) << 8 | | |
2015 | (addr->sa_data[4] & 0xff); | |
2016 | jwrite32(jme, JME_RXUMA_HI, val); | |
2017 | spin_unlock_bh(&jme->macaddr_lock); | |
2018 | ||
2019 | return 0; | |
2020 | } | |
2021 | ||
2022 | static void | |
2023 | jme_set_multi(struct net_device *netdev) | |
2024 | { | |
2025 | struct jme_adapter *jme = netdev_priv(netdev); | |
2026 | u32 mc_hash[2] = {}; | |
95252236 GFT |
2027 | |
2028 | spin_lock_bh(&jme->rxmcs_lock); | |
2029 | ||
2030 | jme->reg_rxmcs |= RXMCS_BRDFRAME | RXMCS_UNIFRAME; | |
2031 | ||
2032 | if (netdev->flags & IFF_PROMISC) { | |
2033 | jme->reg_rxmcs |= RXMCS_ALLFRAME; | |
2034 | } else if (netdev->flags & IFF_ALLMULTI) { | |
2035 | jme->reg_rxmcs |= RXMCS_ALLMULFRAME; | |
2036 | } else if (netdev->flags & IFF_MULTICAST) { | |
22bedad3 | 2037 | struct netdev_hw_addr *ha; |
95252236 GFT |
2038 | int bit_nr; |
2039 | ||
2040 | jme->reg_rxmcs |= RXMCS_MULFRAME | RXMCS_MULFILTERED; | |
22bedad3 JP |
2041 | netdev_for_each_mc_addr(ha, netdev) { |
2042 | bit_nr = ether_crc(ETH_ALEN, ha->addr) & 0x3F; | |
95252236 GFT |
2043 | mc_hash[bit_nr >> 5] |= 1 << (bit_nr & 0x1F); |
2044 | } | |
2045 | ||
2046 | jwrite32(jme, JME_RXMCHT_LO, mc_hash[0]); | |
2047 | jwrite32(jme, JME_RXMCHT_HI, mc_hash[1]); | |
2048 | } | |
2049 | ||
2050 | wmb(); | |
2051 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); | |
2052 | ||
2053 | spin_unlock_bh(&jme->rxmcs_lock); | |
2054 | } | |
2055 | ||
2056 | static int | |
2057 | jme_change_mtu(struct net_device *netdev, int new_mtu) | |
2058 | { | |
2059 | struct jme_adapter *jme = netdev_priv(netdev); | |
2060 | ||
2061 | if (new_mtu == jme->old_mtu) | |
2062 | return 0; | |
2063 | ||
2064 | if (((new_mtu + ETH_HLEN) > MAX_ETHERNET_JUMBO_PACKET_SIZE) || | |
2065 | ((new_mtu) < IPV6_MIN_MTU)) | |
2066 | return -EINVAL; | |
2067 | ||
2068 | if (new_mtu > 4000) { | |
2069 | jme->reg_rxcs &= ~RXCS_FIFOTHNP; | |
2070 | jme->reg_rxcs |= RXCS_FIFOTHNP_64QW; | |
2071 | jme_restart_rx_engine(jme); | |
2072 | } else { | |
2073 | jme->reg_rxcs &= ~RXCS_FIFOTHNP; | |
2074 | jme->reg_rxcs |= RXCS_FIFOTHNP_128QW; | |
2075 | jme_restart_rx_engine(jme); | |
2076 | } | |
2077 | ||
2078 | if (new_mtu > 1900) { | |
79032644 MM |
2079 | netdev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
2080 | NETIF_F_TSO | NETIF_F_TSO6); | |
95252236 GFT |
2081 | } else { |
2082 | if (test_bit(JME_FLAG_TXCSUM, &jme->flags)) | |
79032644 | 2083 | netdev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
95252236 GFT |
2084 | if (test_bit(JME_FLAG_TSO, &jme->flags)) |
2085 | netdev->features |= NETIF_F_TSO | NETIF_F_TSO6; | |
2086 | } | |
2087 | ||
2088 | netdev->mtu = new_mtu; | |
2089 | jme_reset_link(jme); | |
2090 | ||
2091 | return 0; | |
2092 | } | |
2093 | ||
2094 | static void | |
2095 | jme_tx_timeout(struct net_device *netdev) | |
2096 | { | |
2097 | struct jme_adapter *jme = netdev_priv(netdev); | |
2098 | ||
2099 | jme->phylink = 0; | |
2100 | jme_reset_phy_processor(jme); | |
2101 | if (test_bit(JME_FLAG_SSET, &jme->flags)) | |
2102 | jme_set_settings(netdev, &jme->old_ecmd); | |
2103 | ||
2104 | /* | |
2105 | * Force to Reset the link again | |
2106 | */ | |
2107 | jme_reset_link(jme); | |
2108 | } | |
2109 | ||
bf5e5360 GFT |
2110 | static inline void jme_pause_rx(struct jme_adapter *jme) |
2111 | { | |
2112 | atomic_dec(&jme->link_changing); | |
2113 | ||
2114 | jme_set_rx_pcc(jme, PCC_OFF); | |
2115 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2116 | JME_NAPI_DISABLE(jme); | |
2117 | } else { | |
2118 | tasklet_disable(&jme->rxclean_task); | |
2119 | tasklet_disable(&jme->rxempty_task); | |
2120 | } | |
2121 | } | |
2122 | ||
2123 | static inline void jme_resume_rx(struct jme_adapter *jme) | |
2124 | { | |
2125 | struct dynpcc_info *dpi = &(jme->dpi); | |
2126 | ||
2127 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2128 | JME_NAPI_ENABLE(jme); | |
2129 | } else { | |
2130 | tasklet_hi_enable(&jme->rxclean_task); | |
2131 | tasklet_hi_enable(&jme->rxempty_task); | |
2132 | } | |
2133 | dpi->cur = PCC_P1; | |
2134 | dpi->attempt = PCC_P1; | |
2135 | dpi->cnt = 0; | |
2136 | jme_set_rx_pcc(jme, PCC_P1); | |
2137 | ||
2138 | atomic_inc(&jme->link_changing); | |
2139 | } | |
2140 | ||
95252236 GFT |
2141 | static void |
2142 | jme_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp) | |
2143 | { | |
2144 | struct jme_adapter *jme = netdev_priv(netdev); | |
2145 | ||
bf5e5360 | 2146 | jme_pause_rx(jme); |
95252236 | 2147 | jme->vlgrp = grp; |
bf5e5360 | 2148 | jme_resume_rx(jme); |
95252236 GFT |
2149 | } |
2150 | ||
2151 | static void | |
2152 | jme_get_drvinfo(struct net_device *netdev, | |
2153 | struct ethtool_drvinfo *info) | |
2154 | { | |
2155 | struct jme_adapter *jme = netdev_priv(netdev); | |
2156 | ||
2157 | strcpy(info->driver, DRV_NAME); | |
2158 | strcpy(info->version, DRV_VERSION); | |
2159 | strcpy(info->bus_info, pci_name(jme->pdev)); | |
2160 | } | |
2161 | ||
2162 | static int | |
2163 | jme_get_regs_len(struct net_device *netdev) | |
2164 | { | |
2165 | return JME_REG_LEN; | |
2166 | } | |
2167 | ||
2168 | static void | |
2169 | mmapio_memcpy(struct jme_adapter *jme, u32 *p, u32 reg, int len) | |
2170 | { | |
2171 | int i; | |
2172 | ||
2173 | for (i = 0 ; i < len ; i += 4) | |
2174 | p[i >> 2] = jread32(jme, reg + i); | |
2175 | } | |
2176 | ||
2177 | static void | |
2178 | mdio_memcpy(struct jme_adapter *jme, u32 *p, int reg_nr) | |
2179 | { | |
2180 | int i; | |
2181 | u16 *p16 = (u16 *)p; | |
2182 | ||
2183 | for (i = 0 ; i < reg_nr ; ++i) | |
2184 | p16[i] = jme_mdio_read(jme->dev, jme->mii_if.phy_id, i); | |
2185 | } | |
2186 | ||
2187 | static void | |
2188 | jme_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) | |
2189 | { | |
2190 | struct jme_adapter *jme = netdev_priv(netdev); | |
2191 | u32 *p32 = (u32 *)p; | |
2192 | ||
2193 | memset(p, 0xFF, JME_REG_LEN); | |
2194 | ||
2195 | regs->version = 1; | |
2196 | mmapio_memcpy(jme, p32, JME_MAC, JME_MAC_LEN); | |
2197 | ||
2198 | p32 += 0x100 >> 2; | |
2199 | mmapio_memcpy(jme, p32, JME_PHY, JME_PHY_LEN); | |
2200 | ||
2201 | p32 += 0x100 >> 2; | |
2202 | mmapio_memcpy(jme, p32, JME_MISC, JME_MISC_LEN); | |
2203 | ||
2204 | p32 += 0x100 >> 2; | |
2205 | mmapio_memcpy(jme, p32, JME_RSS, JME_RSS_LEN); | |
2206 | ||
2207 | p32 += 0x100 >> 2; | |
2208 | mdio_memcpy(jme, p32, JME_PHY_REG_NR); | |
2209 | } | |
2210 | ||
2211 | static int | |
2212 | jme_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) | |
2213 | { | |
2214 | struct jme_adapter *jme = netdev_priv(netdev); | |
2215 | ||
2216 | ecmd->tx_coalesce_usecs = PCC_TX_TO; | |
2217 | ecmd->tx_max_coalesced_frames = PCC_TX_CNT; | |
2218 | ||
2219 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2220 | ecmd->use_adaptive_rx_coalesce = false; | |
2221 | ecmd->rx_coalesce_usecs = 0; | |
2222 | ecmd->rx_max_coalesced_frames = 0; | |
2223 | return 0; | |
2224 | } | |
2225 | ||
2226 | ecmd->use_adaptive_rx_coalesce = true; | |
2227 | ||
2228 | switch (jme->dpi.cur) { | |
2229 | case PCC_P1: | |
2230 | ecmd->rx_coalesce_usecs = PCC_P1_TO; | |
2231 | ecmd->rx_max_coalesced_frames = PCC_P1_CNT; | |
2232 | break; | |
2233 | case PCC_P2: | |
2234 | ecmd->rx_coalesce_usecs = PCC_P2_TO; | |
2235 | ecmd->rx_max_coalesced_frames = PCC_P2_CNT; | |
2236 | break; | |
2237 | case PCC_P3: | |
2238 | ecmd->rx_coalesce_usecs = PCC_P3_TO; | |
2239 | ecmd->rx_max_coalesced_frames = PCC_P3_CNT; | |
2240 | break; | |
2241 | default: | |
2242 | break; | |
2243 | } | |
2244 | ||
2245 | return 0; | |
2246 | } | |
2247 | ||
2248 | static int | |
2249 | jme_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) | |
2250 | { | |
2251 | struct jme_adapter *jme = netdev_priv(netdev); | |
2252 | struct dynpcc_info *dpi = &(jme->dpi); | |
2253 | ||
2254 | if (netif_running(netdev)) | |
2255 | return -EBUSY; | |
2256 | ||
8e95a202 JP |
2257 | if (ecmd->use_adaptive_rx_coalesce && |
2258 | test_bit(JME_FLAG_POLL, &jme->flags)) { | |
95252236 GFT |
2259 | clear_bit(JME_FLAG_POLL, &jme->flags); |
2260 | jme->jme_rx = netif_rx; | |
2261 | jme->jme_vlan_rx = vlan_hwaccel_rx; | |
2262 | dpi->cur = PCC_P1; | |
2263 | dpi->attempt = PCC_P1; | |
2264 | dpi->cnt = 0; | |
2265 | jme_set_rx_pcc(jme, PCC_P1); | |
2266 | jme_interrupt_mode(jme); | |
8e95a202 JP |
2267 | } else if (!(ecmd->use_adaptive_rx_coalesce) && |
2268 | !(test_bit(JME_FLAG_POLL, &jme->flags))) { | |
95252236 GFT |
2269 | set_bit(JME_FLAG_POLL, &jme->flags); |
2270 | jme->jme_rx = netif_receive_skb; | |
2271 | jme->jme_vlan_rx = vlan_hwaccel_receive_skb; | |
2272 | jme_interrupt_mode(jme); | |
2273 | } | |
2274 | ||
2275 | return 0; | |
2276 | } | |
2277 | ||
2278 | static void | |
2279 | jme_get_pauseparam(struct net_device *netdev, | |
2280 | struct ethtool_pauseparam *ecmd) | |
2281 | { | |
2282 | struct jme_adapter *jme = netdev_priv(netdev); | |
2283 | u32 val; | |
2284 | ||
2285 | ecmd->tx_pause = (jme->reg_txpfc & TXPFC_PF_EN) != 0; | |
2286 | ecmd->rx_pause = (jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0; | |
2287 | ||
2288 | spin_lock_bh(&jme->phy_lock); | |
2289 | val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); | |
2290 | spin_unlock_bh(&jme->phy_lock); | |
2291 | ||
2292 | ecmd->autoneg = | |
2293 | (val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0; | |
2294 | } | |
2295 | ||
2296 | static int | |
2297 | jme_set_pauseparam(struct net_device *netdev, | |
2298 | struct ethtool_pauseparam *ecmd) | |
2299 | { | |
2300 | struct jme_adapter *jme = netdev_priv(netdev); | |
2301 | u32 val; | |
2302 | ||
2303 | if (((jme->reg_txpfc & TXPFC_PF_EN) != 0) ^ | |
2304 | (ecmd->tx_pause != 0)) { | |
2305 | ||
2306 | if (ecmd->tx_pause) | |
2307 | jme->reg_txpfc |= TXPFC_PF_EN; | |
2308 | else | |
2309 | jme->reg_txpfc &= ~TXPFC_PF_EN; | |
2310 | ||
2311 | jwrite32(jme, JME_TXPFC, jme->reg_txpfc); | |
2312 | } | |
2313 | ||
2314 | spin_lock_bh(&jme->rxmcs_lock); | |
2315 | if (((jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0) ^ | |
2316 | (ecmd->rx_pause != 0)) { | |
2317 | ||
2318 | if (ecmd->rx_pause) | |
2319 | jme->reg_rxmcs |= RXMCS_FLOWCTRL; | |
2320 | else | |
2321 | jme->reg_rxmcs &= ~RXMCS_FLOWCTRL; | |
2322 | ||
2323 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); | |
2324 | } | |
2325 | spin_unlock_bh(&jme->rxmcs_lock); | |
2326 | ||
2327 | spin_lock_bh(&jme->phy_lock); | |
2328 | val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); | |
2329 | if (((val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0) ^ | |
2330 | (ecmd->autoneg != 0)) { | |
2331 | ||
2332 | if (ecmd->autoneg) | |
2333 | val |= (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
2334 | else | |
2335 | val &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
2336 | ||
2337 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, | |
2338 | MII_ADVERTISE, val); | |
2339 | } | |
2340 | spin_unlock_bh(&jme->phy_lock); | |
2341 | ||
2342 | return 0; | |
2343 | } | |
2344 | ||
2345 | static void | |
2346 | jme_get_wol(struct net_device *netdev, | |
2347 | struct ethtool_wolinfo *wol) | |
2348 | { | |
2349 | struct jme_adapter *jme = netdev_priv(netdev); | |
2350 | ||
2351 | wol->supported = WAKE_MAGIC | WAKE_PHY; | |
2352 | ||
2353 | wol->wolopts = 0; | |
2354 | ||
2355 | if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) | |
2356 | wol->wolopts |= WAKE_PHY; | |
2357 | ||
2358 | if (jme->reg_pmcs & PMCS_MFEN) | |
2359 | wol->wolopts |= WAKE_MAGIC; | |
2360 | ||
2361 | } | |
2362 | ||
2363 | static int | |
2364 | jme_set_wol(struct net_device *netdev, | |
2365 | struct ethtool_wolinfo *wol) | |
2366 | { | |
2367 | struct jme_adapter *jme = netdev_priv(netdev); | |
2368 | ||
2369 | if (wol->wolopts & (WAKE_MAGICSECURE | | |
2370 | WAKE_UCAST | | |
2371 | WAKE_MCAST | | |
2372 | WAKE_BCAST | | |
2373 | WAKE_ARP)) | |
2374 | return -EOPNOTSUPP; | |
2375 | ||
2376 | jme->reg_pmcs = 0; | |
2377 | ||
2378 | if (wol->wolopts & WAKE_PHY) | |
2379 | jme->reg_pmcs |= PMCS_LFEN | PMCS_LREN; | |
2380 | ||
2381 | if (wol->wolopts & WAKE_MAGIC) | |
2382 | jme->reg_pmcs |= PMCS_MFEN; | |
2383 | ||
2384 | jwrite32(jme, JME_PMCS, jme->reg_pmcs); | |
2385 | ||
2386 | return 0; | |
2387 | } | |
2388 | ||
2389 | static int | |
2390 | jme_get_settings(struct net_device *netdev, | |
2391 | struct ethtool_cmd *ecmd) | |
2392 | { | |
2393 | struct jme_adapter *jme = netdev_priv(netdev); | |
2394 | int rc; | |
2395 | ||
2396 | spin_lock_bh(&jme->phy_lock); | |
2397 | rc = mii_ethtool_gset(&(jme->mii_if), ecmd); | |
2398 | spin_unlock_bh(&jme->phy_lock); | |
2399 | return rc; | |
2400 | } | |
2401 | ||
2402 | static int | |
2403 | jme_set_settings(struct net_device *netdev, | |
2404 | struct ethtool_cmd *ecmd) | |
2405 | { | |
2406 | struct jme_adapter *jme = netdev_priv(netdev); | |
2407 | int rc, fdc = 0; | |
2408 | ||
2409 | if (ecmd->speed == SPEED_1000 && ecmd->autoneg != AUTONEG_ENABLE) | |
2410 | return -EINVAL; | |
2411 | ||
3ee94018 GFT |
2412 | /* |
2413 | * Check If user changed duplex only while force_media. | |
2414 | * Hardware would not generate link change interrupt. | |
2415 | */ | |
95252236 GFT |
2416 | if (jme->mii_if.force_media && |
2417 | ecmd->autoneg != AUTONEG_ENABLE && | |
2418 | (jme->mii_if.full_duplex != ecmd->duplex)) | |
2419 | fdc = 1; | |
2420 | ||
2421 | spin_lock_bh(&jme->phy_lock); | |
2422 | rc = mii_ethtool_sset(&(jme->mii_if), ecmd); | |
2423 | spin_unlock_bh(&jme->phy_lock); | |
2424 | ||
95252236 | 2425 | if (!rc) { |
3ee94018 GFT |
2426 | if (fdc) |
2427 | jme_reset_link(jme); | |
95252236 | 2428 | jme->old_ecmd = *ecmd; |
334fbbb7 GFT |
2429 | set_bit(JME_FLAG_SSET, &jme->flags); |
2430 | } | |
2431 | ||
2432 | return rc; | |
2433 | } | |
2434 | ||
2435 | static int | |
2436 | jme_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) | |
2437 | { | |
2438 | int rc; | |
2439 | struct jme_adapter *jme = netdev_priv(netdev); | |
2440 | struct mii_ioctl_data *mii_data = if_mii(rq); | |
2441 | unsigned int duplex_chg; | |
2442 | ||
2443 | if (cmd == SIOCSMIIREG) { | |
2444 | u16 val = mii_data->val_in; | |
2445 | if (!(val & (BMCR_RESET|BMCR_ANENABLE)) && | |
2446 | (val & BMCR_SPEED1000)) | |
2447 | return -EINVAL; | |
2448 | } | |
2449 | ||
2450 | spin_lock_bh(&jme->phy_lock); | |
2451 | rc = generic_mii_ioctl(&jme->mii_if, mii_data, cmd, &duplex_chg); | |
2452 | spin_unlock_bh(&jme->phy_lock); | |
2453 | ||
2454 | if (!rc && (cmd == SIOCSMIIREG)) { | |
2455 | if (duplex_chg) | |
2456 | jme_reset_link(jme); | |
2457 | jme_get_settings(netdev, &jme->old_ecmd); | |
2458 | set_bit(JME_FLAG_SSET, &jme->flags); | |
95252236 GFT |
2459 | } |
2460 | ||
2461 | return rc; | |
2462 | } | |
2463 | ||
2464 | static u32 | |
2465 | jme_get_link(struct net_device *netdev) | |
2466 | { | |
2467 | struct jme_adapter *jme = netdev_priv(netdev); | |
2468 | return jread32(jme, JME_PHY_LINK) & PHY_LINK_UP; | |
2469 | } | |
2470 | ||
2471 | static u32 | |
2472 | jme_get_msglevel(struct net_device *netdev) | |
2473 | { | |
2474 | struct jme_adapter *jme = netdev_priv(netdev); | |
2475 | return jme->msg_enable; | |
2476 | } | |
2477 | ||
2478 | static void | |
2479 | jme_set_msglevel(struct net_device *netdev, u32 value) | |
2480 | { | |
2481 | struct jme_adapter *jme = netdev_priv(netdev); | |
2482 | jme->msg_enable = value; | |
2483 | } | |
2484 | ||
2485 | static u32 | |
2486 | jme_get_rx_csum(struct net_device *netdev) | |
2487 | { | |
2488 | struct jme_adapter *jme = netdev_priv(netdev); | |
2489 | return jme->reg_rxmcs & RXMCS_CHECKSUM; | |
2490 | } | |
2491 | ||
2492 | static int | |
2493 | jme_set_rx_csum(struct net_device *netdev, u32 on) | |
2494 | { | |
2495 | struct jme_adapter *jme = netdev_priv(netdev); | |
2496 | ||
2497 | spin_lock_bh(&jme->rxmcs_lock); | |
2498 | if (on) | |
2499 | jme->reg_rxmcs |= RXMCS_CHECKSUM; | |
2500 | else | |
2501 | jme->reg_rxmcs &= ~RXMCS_CHECKSUM; | |
2502 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); | |
2503 | spin_unlock_bh(&jme->rxmcs_lock); | |
2504 | ||
2505 | return 0; | |
2506 | } | |
2507 | ||
2508 | static int | |
2509 | jme_set_tx_csum(struct net_device *netdev, u32 on) | |
2510 | { | |
2511 | struct jme_adapter *jme = netdev_priv(netdev); | |
2512 | ||
2513 | if (on) { | |
2514 | set_bit(JME_FLAG_TXCSUM, &jme->flags); | |
2515 | if (netdev->mtu <= 1900) | |
79032644 MM |
2516 | netdev->features |= |
2517 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; | |
95252236 GFT |
2518 | } else { |
2519 | clear_bit(JME_FLAG_TXCSUM, &jme->flags); | |
79032644 MM |
2520 | netdev->features &= |
2521 | ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM); | |
95252236 GFT |
2522 | } |
2523 | ||
2524 | return 0; | |
2525 | } | |
2526 | ||
2527 | static int | |
2528 | jme_set_tso(struct net_device *netdev, u32 on) | |
2529 | { | |
2530 | struct jme_adapter *jme = netdev_priv(netdev); | |
2531 | ||
2532 | if (on) { | |
2533 | set_bit(JME_FLAG_TSO, &jme->flags); | |
2534 | if (netdev->mtu <= 1900) | |
2535 | netdev->features |= NETIF_F_TSO | NETIF_F_TSO6; | |
2536 | } else { | |
2537 | clear_bit(JME_FLAG_TSO, &jme->flags); | |
2538 | netdev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6); | |
2539 | } | |
2540 | ||
2541 | return 0; | |
2542 | } | |
2543 | ||
2544 | static int | |
2545 | jme_nway_reset(struct net_device *netdev) | |
2546 | { | |
2547 | struct jme_adapter *jme = netdev_priv(netdev); | |
2548 | jme_restart_an(jme); | |
2549 | return 0; | |
2550 | } | |
2551 | ||
2552 | static u8 | |
2553 | jme_smb_read(struct jme_adapter *jme, unsigned int addr) | |
2554 | { | |
2555 | u32 val; | |
2556 | int to; | |
2557 | ||
2558 | val = jread32(jme, JME_SMBCSR); | |
2559 | to = JME_SMB_BUSY_TIMEOUT; | |
2560 | while ((val & SMBCSR_BUSY) && --to) { | |
2561 | msleep(1); | |
2562 | val = jread32(jme, JME_SMBCSR); | |
2563 | } | |
2564 | if (!to) { | |
49d70c48 | 2565 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
95252236 GFT |
2566 | return 0xFF; |
2567 | } | |
2568 | ||
2569 | jwrite32(jme, JME_SMBINTF, | |
2570 | ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | | |
2571 | SMBINTF_HWRWN_READ | | |
2572 | SMBINTF_HWCMD); | |
2573 | ||
2574 | val = jread32(jme, JME_SMBINTF); | |
2575 | to = JME_SMB_BUSY_TIMEOUT; | |
2576 | while ((val & SMBINTF_HWCMD) && --to) { | |
2577 | msleep(1); | |
2578 | val = jread32(jme, JME_SMBINTF); | |
2579 | } | |
2580 | if (!to) { | |
49d70c48 | 2581 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
95252236 GFT |
2582 | return 0xFF; |
2583 | } | |
2584 | ||
2585 | return (val & SMBINTF_HWDATR) >> SMBINTF_HWDATR_SHIFT; | |
2586 | } | |
2587 | ||
2588 | static void | |
2589 | jme_smb_write(struct jme_adapter *jme, unsigned int addr, u8 data) | |
2590 | { | |
2591 | u32 val; | |
2592 | int to; | |
2593 | ||
2594 | val = jread32(jme, JME_SMBCSR); | |
2595 | to = JME_SMB_BUSY_TIMEOUT; | |
2596 | while ((val & SMBCSR_BUSY) && --to) { | |
2597 | msleep(1); | |
2598 | val = jread32(jme, JME_SMBCSR); | |
2599 | } | |
2600 | if (!to) { | |
49d70c48 | 2601 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
95252236 GFT |
2602 | return; |
2603 | } | |
2604 | ||
2605 | jwrite32(jme, JME_SMBINTF, | |
2606 | ((data << SMBINTF_HWDATW_SHIFT) & SMBINTF_HWDATW) | | |
2607 | ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | | |
2608 | SMBINTF_HWRWN_WRITE | | |
2609 | SMBINTF_HWCMD); | |
2610 | ||
2611 | val = jread32(jme, JME_SMBINTF); | |
2612 | to = JME_SMB_BUSY_TIMEOUT; | |
2613 | while ((val & SMBINTF_HWCMD) && --to) { | |
2614 | msleep(1); | |
2615 | val = jread32(jme, JME_SMBINTF); | |
2616 | } | |
2617 | if (!to) { | |
49d70c48 | 2618 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
95252236 GFT |
2619 | return; |
2620 | } | |
2621 | ||
2622 | mdelay(2); | |
2623 | } | |
2624 | ||
2625 | static int | |
2626 | jme_get_eeprom_len(struct net_device *netdev) | |
2627 | { | |
2628 | struct jme_adapter *jme = netdev_priv(netdev); | |
2629 | u32 val; | |
2630 | val = jread32(jme, JME_SMBCSR); | |
2631 | return (val & SMBCSR_EEPROMD) ? JME_SMB_LEN : 0; | |
2632 | } | |
2633 | ||
2634 | static int | |
2635 | jme_get_eeprom(struct net_device *netdev, | |
2636 | struct ethtool_eeprom *eeprom, u8 *data) | |
2637 | { | |
2638 | struct jme_adapter *jme = netdev_priv(netdev); | |
2639 | int i, offset = eeprom->offset, len = eeprom->len; | |
2640 | ||
2641 | /* | |
2642 | * ethtool will check the boundary for us | |
2643 | */ | |
2644 | eeprom->magic = JME_EEPROM_MAGIC; | |
2645 | for (i = 0 ; i < len ; ++i) | |
2646 | data[i] = jme_smb_read(jme, i + offset); | |
2647 | ||
2648 | return 0; | |
2649 | } | |
2650 | ||
2651 | static int | |
2652 | jme_set_eeprom(struct net_device *netdev, | |
2653 | struct ethtool_eeprom *eeprom, u8 *data) | |
2654 | { | |
2655 | struct jme_adapter *jme = netdev_priv(netdev); | |
2656 | int i, offset = eeprom->offset, len = eeprom->len; | |
2657 | ||
2658 | if (eeprom->magic != JME_EEPROM_MAGIC) | |
2659 | return -EINVAL; | |
2660 | ||
2661 | /* | |
2662 | * ethtool will check the boundary for us | |
2663 | */ | |
2664 | for (i = 0 ; i < len ; ++i) | |
2665 | jme_smb_write(jme, i + offset, data[i]); | |
2666 | ||
2667 | return 0; | |
2668 | } | |
2669 | ||
2670 | static const struct ethtool_ops jme_ethtool_ops = { | |
2671 | .get_drvinfo = jme_get_drvinfo, | |
2672 | .get_regs_len = jme_get_regs_len, | |
2673 | .get_regs = jme_get_regs, | |
2674 | .get_coalesce = jme_get_coalesce, | |
2675 | .set_coalesce = jme_set_coalesce, | |
2676 | .get_pauseparam = jme_get_pauseparam, | |
2677 | .set_pauseparam = jme_set_pauseparam, | |
2678 | .get_wol = jme_get_wol, | |
2679 | .set_wol = jme_set_wol, | |
2680 | .get_settings = jme_get_settings, | |
2681 | .set_settings = jme_set_settings, | |
2682 | .get_link = jme_get_link, | |
2683 | .get_msglevel = jme_get_msglevel, | |
2684 | .set_msglevel = jme_set_msglevel, | |
2685 | .get_rx_csum = jme_get_rx_csum, | |
2686 | .set_rx_csum = jme_set_rx_csum, | |
2687 | .set_tx_csum = jme_set_tx_csum, | |
2688 | .set_tso = jme_set_tso, | |
2689 | .set_sg = ethtool_op_set_sg, | |
2690 | .nway_reset = jme_nway_reset, | |
2691 | .get_eeprom_len = jme_get_eeprom_len, | |
2692 | .get_eeprom = jme_get_eeprom, | |
2693 | .set_eeprom = jme_set_eeprom, | |
2694 | }; | |
2695 | ||
2696 | static int | |
2697 | jme_pci_dma64(struct pci_dev *pdev) | |
2698 | { | |
814c01dc | 2699 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && |
e930438c YH |
2700 | !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) |
2701 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) | |
814c01dc GFT |
2702 | return 1; |
2703 | ||
2704 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && | |
e930438c YH |
2705 | !pci_set_dma_mask(pdev, DMA_BIT_MASK(40))) |
2706 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40))) | |
814c01dc GFT |
2707 | return 1; |
2708 | ||
284901a9 YH |
2709 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) |
2710 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) | |
95252236 GFT |
2711 | return 0; |
2712 | ||
2713 | return -1; | |
2714 | } | |
2715 | ||
2716 | static inline void | |
2717 | jme_phy_init(struct jme_adapter *jme) | |
2718 | { | |
2719 | u16 reg26; | |
2720 | ||
2721 | reg26 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 26); | |
2722 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 26, reg26 | 0x1000); | |
2723 | } | |
2724 | ||
2725 | static inline void | |
2726 | jme_check_hw_ver(struct jme_adapter *jme) | |
2727 | { | |
2728 | u32 chipmode; | |
2729 | ||
2730 | chipmode = jread32(jme, JME_CHIPMODE); | |
2731 | ||
2732 | jme->fpgaver = (chipmode & CM_FPGAVER_MASK) >> CM_FPGAVER_SHIFT; | |
2733 | jme->chiprev = (chipmode & CM_CHIPREV_MASK) >> CM_CHIPREV_SHIFT; | |
2734 | } | |
2735 | ||
e48714ba SH |
2736 | static const struct net_device_ops jme_netdev_ops = { |
2737 | .ndo_open = jme_open, | |
2738 | .ndo_stop = jme_close, | |
2739 | .ndo_validate_addr = eth_validate_addr, | |
334fbbb7 | 2740 | .ndo_do_ioctl = jme_ioctl, |
e48714ba SH |
2741 | .ndo_start_xmit = jme_start_xmit, |
2742 | .ndo_set_mac_address = jme_set_macaddr, | |
2743 | .ndo_set_multicast_list = jme_set_multi, | |
2744 | .ndo_change_mtu = jme_change_mtu, | |
2745 | .ndo_tx_timeout = jme_tx_timeout, | |
2746 | .ndo_vlan_rx_register = jme_vlan_rx_register, | |
2747 | }; | |
2748 | ||
95252236 GFT |
2749 | static int __devinit |
2750 | jme_init_one(struct pci_dev *pdev, | |
2751 | const struct pci_device_id *ent) | |
2752 | { | |
2753 | int rc = 0, using_dac, i; | |
2754 | struct net_device *netdev; | |
2755 | struct jme_adapter *jme; | |
2756 | u16 bmcr, bmsr; | |
2757 | u32 apmc; | |
2758 | ||
2759 | /* | |
2760 | * set up PCI device basics | |
2761 | */ | |
2762 | rc = pci_enable_device(pdev); | |
2763 | if (rc) { | |
49d70c48 | 2764 | pr_err("Cannot enable PCI device\n"); |
95252236 GFT |
2765 | goto err_out; |
2766 | } | |
2767 | ||
2768 | using_dac = jme_pci_dma64(pdev); | |
2769 | if (using_dac < 0) { | |
49d70c48 | 2770 | pr_err("Cannot set PCI DMA Mask\n"); |
95252236 GFT |
2771 | rc = -EIO; |
2772 | goto err_out_disable_pdev; | |
2773 | } | |
2774 | ||
2775 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
49d70c48 | 2776 | pr_err("No PCI resource region found\n"); |
95252236 GFT |
2777 | rc = -ENOMEM; |
2778 | goto err_out_disable_pdev; | |
2779 | } | |
2780 | ||
2781 | rc = pci_request_regions(pdev, DRV_NAME); | |
2782 | if (rc) { | |
49d70c48 | 2783 | pr_err("Cannot obtain PCI resource region\n"); |
95252236 GFT |
2784 | goto err_out_disable_pdev; |
2785 | } | |
2786 | ||
2787 | pci_set_master(pdev); | |
2788 | ||
2789 | /* | |
2790 | * alloc and init net device | |
2791 | */ | |
2792 | netdev = alloc_etherdev(sizeof(*jme)); | |
2793 | if (!netdev) { | |
49d70c48 | 2794 | pr_err("Cannot allocate netdev structure\n"); |
95252236 GFT |
2795 | rc = -ENOMEM; |
2796 | goto err_out_release_regions; | |
2797 | } | |
e48714ba | 2798 | netdev->netdev_ops = &jme_netdev_ops; |
95252236 | 2799 | netdev->ethtool_ops = &jme_ethtool_ops; |
95252236 | 2800 | netdev->watchdog_timeo = TX_TIMEOUT; |
79032644 MM |
2801 | netdev->features = NETIF_F_IP_CSUM | |
2802 | NETIF_F_IPV6_CSUM | | |
95252236 GFT |
2803 | NETIF_F_SG | |
2804 | NETIF_F_TSO | | |
2805 | NETIF_F_TSO6 | | |
2806 | NETIF_F_HW_VLAN_TX | | |
2807 | NETIF_F_HW_VLAN_RX; | |
2808 | if (using_dac) | |
2809 | netdev->features |= NETIF_F_HIGHDMA; | |
2810 | ||
2811 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
2812 | pci_set_drvdata(pdev, netdev); | |
2813 | ||
2814 | /* | |
2815 | * init adapter info | |
2816 | */ | |
2817 | jme = netdev_priv(netdev); | |
2818 | jme->pdev = pdev; | |
2819 | jme->dev = netdev; | |
2820 | jme->jme_rx = netif_rx; | |
2821 | jme->jme_vlan_rx = vlan_hwaccel_rx; | |
2822 | jme->old_mtu = netdev->mtu = 1500; | |
2823 | jme->phylink = 0; | |
2824 | jme->tx_ring_size = 1 << 10; | |
2825 | jme->tx_ring_mask = jme->tx_ring_size - 1; | |
2826 | jme->tx_wake_threshold = 1 << 9; | |
2827 | jme->rx_ring_size = 1 << 9; | |
2828 | jme->rx_ring_mask = jme->rx_ring_size - 1; | |
2829 | jme->msg_enable = JME_DEF_MSG_ENABLE; | |
2830 | jme->regs = ioremap(pci_resource_start(pdev, 0), | |
2831 | pci_resource_len(pdev, 0)); | |
2832 | if (!(jme->regs)) { | |
49d70c48 | 2833 | pr_err("Mapping PCI resource region error\n"); |
95252236 GFT |
2834 | rc = -ENOMEM; |
2835 | goto err_out_free_netdev; | |
2836 | } | |
95252236 GFT |
2837 | |
2838 | if (no_pseudohp) { | |
2839 | apmc = jread32(jme, JME_APMC) & ~JME_APMC_PSEUDO_HP_EN; | |
2840 | jwrite32(jme, JME_APMC, apmc); | |
2841 | } else if (force_pseudohp) { | |
2842 | apmc = jread32(jme, JME_APMC) | JME_APMC_PSEUDO_HP_EN; | |
2843 | jwrite32(jme, JME_APMC, apmc); | |
2844 | } | |
2845 | ||
2846 | NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, jme->rx_ring_size >> 2) | |
2847 | ||
2848 | spin_lock_init(&jme->phy_lock); | |
2849 | spin_lock_init(&jme->macaddr_lock); | |
2850 | spin_lock_init(&jme->rxmcs_lock); | |
2851 | ||
2852 | atomic_set(&jme->link_changing, 1); | |
2853 | atomic_set(&jme->rx_cleaning, 1); | |
2854 | atomic_set(&jme->tx_cleaning, 1); | |
2855 | atomic_set(&jme->rx_empty, 1); | |
2856 | ||
2857 | tasklet_init(&jme->pcc_task, | |
164165da | 2858 | jme_pcc_tasklet, |
95252236 GFT |
2859 | (unsigned long) jme); |
2860 | tasklet_init(&jme->linkch_task, | |
164165da | 2861 | jme_link_change_tasklet, |
95252236 GFT |
2862 | (unsigned long) jme); |
2863 | tasklet_init(&jme->txclean_task, | |
164165da | 2864 | jme_tx_clean_tasklet, |
95252236 GFT |
2865 | (unsigned long) jme); |
2866 | tasklet_init(&jme->rxclean_task, | |
164165da | 2867 | jme_rx_clean_tasklet, |
95252236 GFT |
2868 | (unsigned long) jme); |
2869 | tasklet_init(&jme->rxempty_task, | |
164165da | 2870 | jme_rx_empty_tasklet, |
95252236 | 2871 | (unsigned long) jme); |
38ed0c21 | 2872 | tasklet_disable_nosync(&jme->linkch_task); |
95252236 GFT |
2873 | tasklet_disable_nosync(&jme->txclean_task); |
2874 | tasklet_disable_nosync(&jme->rxclean_task); | |
2875 | tasklet_disable_nosync(&jme->rxempty_task); | |
2876 | jme->dpi.cur = PCC_P1; | |
2877 | ||
2878 | jme->reg_ghc = 0; | |
2879 | jme->reg_rxcs = RXCS_DEFAULT; | |
2880 | jme->reg_rxmcs = RXMCS_DEFAULT; | |
2881 | jme->reg_txpfc = 0; | |
2882 | jme->reg_pmcs = PMCS_MFEN; | |
2883 | set_bit(JME_FLAG_TXCSUM, &jme->flags); | |
2884 | set_bit(JME_FLAG_TSO, &jme->flags); | |
2885 | ||
2886 | /* | |
2887 | * Get Max Read Req Size from PCI Config Space | |
2888 | */ | |
2889 | pci_read_config_byte(pdev, PCI_DCSR_MRRS, &jme->mrrs); | |
2890 | jme->mrrs &= PCI_DCSR_MRRS_MASK; | |
2891 | switch (jme->mrrs) { | |
2892 | case MRRS_128B: | |
2893 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_128B; | |
2894 | break; | |
2895 | case MRRS_256B: | |
2896 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_256B; | |
2897 | break; | |
2898 | default: | |
2899 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_512B; | |
2900 | break; | |
ee289b64 | 2901 | } |
95252236 GFT |
2902 | |
2903 | /* | |
2904 | * Must check before reset_mac_processor | |
2905 | */ | |
2906 | jme_check_hw_ver(jme); | |
2907 | jme->mii_if.dev = netdev; | |
2908 | if (jme->fpgaver) { | |
2909 | jme->mii_if.phy_id = 0; | |
2910 | for (i = 1 ; i < 32 ; ++i) { | |
2911 | bmcr = jme_mdio_read(netdev, i, MII_BMCR); | |
2912 | bmsr = jme_mdio_read(netdev, i, MII_BMSR); | |
2913 | if (bmcr != 0xFFFFU && (bmcr != 0 || bmsr != 0)) { | |
2914 | jme->mii_if.phy_id = i; | |
2915 | break; | |
2916 | } | |
2917 | } | |
2918 | ||
2919 | if (!jme->mii_if.phy_id) { | |
2920 | rc = -EIO; | |
49d70c48 JP |
2921 | pr_err("Can not find phy_id\n"); |
2922 | goto err_out_unmap; | |
95252236 GFT |
2923 | } |
2924 | ||
2925 | jme->reg_ghc |= GHC_LINK_POLL; | |
2926 | } else { | |
2927 | jme->mii_if.phy_id = 1; | |
2928 | } | |
2929 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) | |
2930 | jme->mii_if.supports_gmii = true; | |
2931 | else | |
2932 | jme->mii_if.supports_gmii = false; | |
334fbbb7 GFT |
2933 | jme->mii_if.phy_id_mask = 0x1F; |
2934 | jme->mii_if.reg_num_mask = 0x1F; | |
95252236 GFT |
2935 | jme->mii_if.mdio_read = jme_mdio_read; |
2936 | jme->mii_if.mdio_write = jme_mdio_write; | |
2937 | ||
2938 | jme_clear_pm(jme); | |
2939 | jme_set_phyfifoa(jme); | |
2940 | pci_read_config_byte(pdev, PCI_REVISION_ID, &jme->rev); | |
2941 | if (!jme->fpgaver) | |
2942 | jme_phy_init(jme); | |
2943 | jme_phy_off(jme); | |
2944 | ||
2945 | /* | |
2946 | * Reset MAC processor and reload EEPROM for MAC Address | |
2947 | */ | |
2948 | jme_reset_mac_processor(jme); | |
2949 | rc = jme_reload_eeprom(jme); | |
2950 | if (rc) { | |
49d70c48 | 2951 | pr_err("Reload eeprom for reading MAC Address error\n"); |
d1dfa1d1 | 2952 | goto err_out_unmap; |
95252236 GFT |
2953 | } |
2954 | jme_load_macaddr(netdev); | |
2955 | ||
2956 | /* | |
2957 | * Tell stack that we are not ready to work until open() | |
2958 | */ | |
2959 | netif_carrier_off(netdev); | |
95252236 | 2960 | |
95252236 GFT |
2961 | rc = register_netdev(netdev); |
2962 | if (rc) { | |
49d70c48 | 2963 | pr_err("Cannot register net device\n"); |
d1dfa1d1 | 2964 | goto err_out_unmap; |
95252236 GFT |
2965 | } |
2966 | ||
f8502ce4 JP |
2967 | netif_info(jme, probe, jme->dev, "%s%s ver:%x rev:%x macaddr:%pM\n", |
2968 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) ? | |
2969 | "JMC250 Gigabit Ethernet" : | |
2970 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC260) ? | |
2971 | "JMC260 Fast Ethernet" : "Unknown", | |
2972 | (jme->fpgaver != 0) ? " (FPGA)" : "", | |
2973 | (jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev, | |
2974 | jme->rev, netdev->dev_addr); | |
95252236 GFT |
2975 | |
2976 | return 0; | |
2977 | ||
95252236 GFT |
2978 | err_out_unmap: |
2979 | iounmap(jme->regs); | |
2980 | err_out_free_netdev: | |
2981 | pci_set_drvdata(pdev, NULL); | |
2982 | free_netdev(netdev); | |
2983 | err_out_release_regions: | |
2984 | pci_release_regions(pdev); | |
2985 | err_out_disable_pdev: | |
2986 | pci_disable_device(pdev); | |
2987 | err_out: | |
2988 | return rc; | |
2989 | } | |
2990 | ||
2991 | static void __devexit | |
2992 | jme_remove_one(struct pci_dev *pdev) | |
2993 | { | |
2994 | struct net_device *netdev = pci_get_drvdata(pdev); | |
2995 | struct jme_adapter *jme = netdev_priv(netdev); | |
2996 | ||
2997 | unregister_netdev(netdev); | |
95252236 GFT |
2998 | iounmap(jme->regs); |
2999 | pci_set_drvdata(pdev, NULL); | |
3000 | free_netdev(netdev); | |
3001 | pci_release_regions(pdev); | |
3002 | pci_disable_device(pdev); | |
3003 | ||
3004 | } | |
3005 | ||
1c557819 GFT |
3006 | static void |
3007 | jme_shutdown(struct pci_dev *pdev) | |
3008 | { | |
3009 | struct net_device *netdev = pci_get_drvdata(pdev); | |
3010 | struct jme_adapter *jme = netdev_priv(netdev); | |
3011 | ||
3012 | jme_powersave_phy(jme); | |
3013 | pci_pme_active(pdev, true); | |
3014 | } | |
3015 | ||
724f8805 | 3016 | #ifdef CONFIG_PM |
95252236 GFT |
3017 | static int |
3018 | jme_suspend(struct pci_dev *pdev, pm_message_t state) | |
3019 | { | |
3020 | struct net_device *netdev = pci_get_drvdata(pdev); | |
3021 | struct jme_adapter *jme = netdev_priv(netdev); | |
3022 | ||
3023 | atomic_dec(&jme->link_changing); | |
3024 | ||
3025 | netif_device_detach(netdev); | |
3026 | netif_stop_queue(netdev); | |
3027 | jme_stop_irq(jme); | |
3028 | ||
3029 | tasklet_disable(&jme->txclean_task); | |
3030 | tasklet_disable(&jme->rxclean_task); | |
3031 | tasklet_disable(&jme->rxempty_task); | |
3032 | ||
95252236 GFT |
3033 | if (netif_carrier_ok(netdev)) { |
3034 | if (test_bit(JME_FLAG_POLL, &jme->flags)) | |
3035 | jme_polling_mode(jme); | |
3036 | ||
3037 | jme_stop_pcc_timer(jme); | |
3038 | jme_reset_ghc_speed(jme); | |
3039 | jme_disable_rx_engine(jme); | |
3040 | jme_disable_tx_engine(jme); | |
3041 | jme_reset_mac_processor(jme); | |
3042 | jme_free_rx_resources(jme); | |
3043 | jme_free_tx_resources(jme); | |
3044 | netif_carrier_off(netdev); | |
3045 | jme->phylink = 0; | |
3046 | } | |
3047 | ||
3048 | tasklet_enable(&jme->txclean_task); | |
3049 | tasklet_hi_enable(&jme->rxclean_task); | |
3050 | tasklet_hi_enable(&jme->rxempty_task); | |
3051 | ||
3052 | pci_save_state(pdev); | |
1c557819 GFT |
3053 | jme_powersave_phy(jme); |
3054 | pci_enable_wake(jme->pdev, PCI_D3hot, true); | |
3055 | pci_set_power_state(pdev, PCI_D3hot); | |
95252236 GFT |
3056 | |
3057 | return 0; | |
3058 | } | |
3059 | ||
3060 | static int | |
3061 | jme_resume(struct pci_dev *pdev) | |
3062 | { | |
3063 | struct net_device *netdev = pci_get_drvdata(pdev); | |
3064 | struct jme_adapter *jme = netdev_priv(netdev); | |
3065 | ||
3066 | jme_clear_pm(jme); | |
3067 | pci_restore_state(pdev); | |
3068 | ||
c8a8684d GFT |
3069 | if (test_bit(JME_FLAG_SSET, &jme->flags)) { |
3070 | jme_phy_on(jme); | |
95252236 | 3071 | jme_set_settings(netdev, &jme->old_ecmd); |
c8a8684d | 3072 | } else { |
95252236 | 3073 | jme_reset_phy_processor(jme); |
c8a8684d | 3074 | } |
95252236 | 3075 | |
95252236 GFT |
3076 | jme_start_irq(jme); |
3077 | netif_device_attach(netdev); | |
3078 | ||
3079 | atomic_inc(&jme->link_changing); | |
3080 | ||
3081 | jme_reset_link(jme); | |
3082 | ||
3083 | return 0; | |
3084 | } | |
724f8805 | 3085 | #endif |
95252236 | 3086 | |
a3aa1884 | 3087 | static DEFINE_PCI_DEVICE_TABLE(jme_pci_tbl) = { |
95252236 GFT |
3088 | { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC250) }, |
3089 | { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC260) }, | |
3090 | { } | |
3091 | }; | |
3092 | ||
3093 | static struct pci_driver jme_driver = { | |
3094 | .name = DRV_NAME, | |
3095 | .id_table = jme_pci_tbl, | |
3096 | .probe = jme_init_one, | |
3097 | .remove = __devexit_p(jme_remove_one), | |
3098 | #ifdef CONFIG_PM | |
3099 | .suspend = jme_suspend, | |
3100 | .resume = jme_resume, | |
3101 | #endif /* CONFIG_PM */ | |
1c557819 | 3102 | .shutdown = jme_shutdown, |
95252236 GFT |
3103 | }; |
3104 | ||
3105 | static int __init | |
3106 | jme_init_module(void) | |
3107 | { | |
49d70c48 | 3108 | pr_info("JMicron JMC2XX ethernet driver version %s\n", DRV_VERSION); |
95252236 GFT |
3109 | return pci_register_driver(&jme_driver); |
3110 | } | |
3111 | ||
3112 | static void __exit | |
3113 | jme_cleanup_module(void) | |
3114 | { | |
3115 | pci_unregister_driver(&jme_driver); | |
3116 | } | |
3117 | ||
3118 | module_init(jme_init_module); | |
3119 | module_exit(jme_cleanup_module); | |
3120 | ||
3121 | MODULE_AUTHOR("Guo-Fu Tseng <cooldavid@cooldavid.org>"); | |
3122 | MODULE_DESCRIPTION("JMicron JMC2x0 PCI Express Ethernet driver"); | |
3123 | MODULE_LICENSE("GPL"); | |
3124 | MODULE_VERSION(DRV_VERSION); | |
3125 | MODULE_DEVICE_TABLE(pci, jme_pci_tbl); | |
3126 |