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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/ | |
6 | * | |
7 | * Author: Guo-Fu Tseng <cooldavid@cooldavid.org> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | * | |
22 | */ | |
23 | ||
49d70c48 JP |
24 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
25 | ||
95252236 GFT |
26 | #include <linux/module.h> |
27 | #include <linux/kernel.h> | |
28 | #include <linux/pci.h> | |
29 | #include <linux/netdevice.h> | |
30 | #include <linux/etherdevice.h> | |
31 | #include <linux/ethtool.h> | |
32 | #include <linux/mii.h> | |
33 | #include <linux/crc32.h> | |
34 | #include <linux/delay.h> | |
35 | #include <linux/spinlock.h> | |
36 | #include <linux/in.h> | |
37 | #include <linux/ip.h> | |
38 | #include <linux/ipv6.h> | |
39 | #include <linux/tcp.h> | |
40 | #include <linux/udp.h> | |
41 | #include <linux/if_vlan.h> | |
5a0e3ad6 | 42 | #include <linux/slab.h> |
b7c6bfb7 | 43 | #include <net/ip6_checksum.h> |
95252236 GFT |
44 | #include "jme.h" |
45 | ||
46 | static int force_pseudohp = -1; | |
47 | static int no_pseudohp = -1; | |
48 | static int no_extplug = -1; | |
49 | module_param(force_pseudohp, int, 0); | |
50 | MODULE_PARM_DESC(force_pseudohp, | |
51 | "Enable pseudo hot-plug feature manually by driver instead of BIOS."); | |
52 | module_param(no_pseudohp, int, 0); | |
53 | MODULE_PARM_DESC(no_pseudohp, "Disable pseudo hot-plug feature."); | |
54 | module_param(no_extplug, int, 0); | |
55 | MODULE_PARM_DESC(no_extplug, | |
56 | "Do not use external plug signal for pseudo hot-plug."); | |
57 | ||
58 | static int | |
59 | jme_mdio_read(struct net_device *netdev, int phy, int reg) | |
60 | { | |
61 | struct jme_adapter *jme = netdev_priv(netdev); | |
62 | int i, val, again = (reg == MII_BMSR) ? 1 : 0; | |
63 | ||
64 | read_again: | |
65 | jwrite32(jme, JME_SMI, SMI_OP_REQ | | |
66 | smi_phy_addr(phy) | | |
67 | smi_reg_addr(reg)); | |
68 | ||
69 | wmb(); | |
70 | for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { | |
71 | udelay(20); | |
72 | val = jread32(jme, JME_SMI); | |
73 | if ((val & SMI_OP_REQ) == 0) | |
74 | break; | |
75 | } | |
76 | ||
77 | if (i == 0) { | |
49d70c48 | 78 | pr_err("phy(%d) read timeout : %d\n", phy, reg); |
95252236 GFT |
79 | return 0; |
80 | } | |
81 | ||
82 | if (again--) | |
83 | goto read_again; | |
84 | ||
85 | return (val & SMI_DATA_MASK) >> SMI_DATA_SHIFT; | |
86 | } | |
87 | ||
88 | static void | |
89 | jme_mdio_write(struct net_device *netdev, | |
90 | int phy, int reg, int val) | |
91 | { | |
92 | struct jme_adapter *jme = netdev_priv(netdev); | |
93 | int i; | |
94 | ||
95 | jwrite32(jme, JME_SMI, SMI_OP_WRITE | SMI_OP_REQ | | |
96 | ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) | | |
97 | smi_phy_addr(phy) | smi_reg_addr(reg)); | |
98 | ||
99 | wmb(); | |
100 | for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { | |
101 | udelay(20); | |
102 | if ((jread32(jme, JME_SMI) & SMI_OP_REQ) == 0) | |
103 | break; | |
104 | } | |
105 | ||
106 | if (i == 0) | |
49d70c48 | 107 | pr_err("phy(%d) write timeout : %d\n", phy, reg); |
95252236 GFT |
108 | } |
109 | ||
110 | static inline void | |
111 | jme_reset_phy_processor(struct jme_adapter *jme) | |
112 | { | |
113 | u32 val; | |
114 | ||
115 | jme_mdio_write(jme->dev, | |
116 | jme->mii_if.phy_id, | |
117 | MII_ADVERTISE, ADVERTISE_ALL | | |
118 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
119 | ||
120 | if (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) | |
121 | jme_mdio_write(jme->dev, | |
122 | jme->mii_if.phy_id, | |
123 | MII_CTRL1000, | |
124 | ADVERTISE_1000FULL | ADVERTISE_1000HALF); | |
125 | ||
126 | val = jme_mdio_read(jme->dev, | |
127 | jme->mii_if.phy_id, | |
128 | MII_BMCR); | |
129 | ||
130 | jme_mdio_write(jme->dev, | |
131 | jme->mii_if.phy_id, | |
132 | MII_BMCR, val | BMCR_RESET); | |
95252236 GFT |
133 | } |
134 | ||
135 | static void | |
136 | jme_setup_wakeup_frame(struct jme_adapter *jme, | |
137 | u32 *mask, u32 crc, int fnr) | |
138 | { | |
139 | int i; | |
140 | ||
141 | /* | |
142 | * Setup CRC pattern | |
143 | */ | |
144 | jwrite32(jme, JME_WFOI, WFOI_CRC_SEL | (fnr & WFOI_FRAME_SEL)); | |
145 | wmb(); | |
146 | jwrite32(jme, JME_WFODP, crc); | |
147 | wmb(); | |
148 | ||
149 | /* | |
150 | * Setup Mask | |
151 | */ | |
152 | for (i = 0 ; i < WAKEUP_FRAME_MASK_DWNR ; ++i) { | |
153 | jwrite32(jme, JME_WFOI, | |
154 | ((i << WFOI_MASK_SHIFT) & WFOI_MASK_SEL) | | |
155 | (fnr & WFOI_FRAME_SEL)); | |
156 | wmb(); | |
157 | jwrite32(jme, JME_WFODP, mask[i]); | |
158 | wmb(); | |
159 | } | |
160 | } | |
161 | ||
162 | static inline void | |
163 | jme_reset_mac_processor(struct jme_adapter *jme) | |
164 | { | |
165 | u32 mask[WAKEUP_FRAME_MASK_DWNR] = {0, 0, 0, 0}; | |
166 | u32 crc = 0xCDCDCDCD; | |
167 | u32 gpreg0; | |
168 | int i; | |
169 | ||
170 | jwrite32(jme, JME_GHC, jme->reg_ghc | GHC_SWRST); | |
171 | udelay(2); | |
172 | jwrite32(jme, JME_GHC, jme->reg_ghc); | |
173 | ||
174 | jwrite32(jme, JME_RXDBA_LO, 0x00000000); | |
175 | jwrite32(jme, JME_RXDBA_HI, 0x00000000); | |
176 | jwrite32(jme, JME_RXQDC, 0x00000000); | |
177 | jwrite32(jme, JME_RXNDA, 0x00000000); | |
178 | jwrite32(jme, JME_TXDBA_LO, 0x00000000); | |
179 | jwrite32(jme, JME_TXDBA_HI, 0x00000000); | |
180 | jwrite32(jme, JME_TXQDC, 0x00000000); | |
181 | jwrite32(jme, JME_TXNDA, 0x00000000); | |
182 | ||
183 | jwrite32(jme, JME_RXMCHT_LO, 0x00000000); | |
184 | jwrite32(jme, JME_RXMCHT_HI, 0x00000000); | |
185 | for (i = 0 ; i < WAKEUP_FRAME_NR ; ++i) | |
186 | jme_setup_wakeup_frame(jme, mask, crc, i); | |
187 | if (jme->fpgaver) | |
188 | gpreg0 = GPREG0_DEFAULT | GPREG0_LNKINTPOLL; | |
189 | else | |
190 | gpreg0 = GPREG0_DEFAULT; | |
191 | jwrite32(jme, JME_GPREG0, gpreg0); | |
a821ebe5 | 192 | jwrite32(jme, JME_GPREG1, GPREG1_DEFAULT); |
95252236 GFT |
193 | } |
194 | ||
195 | static inline void | |
196 | jme_reset_ghc_speed(struct jme_adapter *jme) | |
197 | { | |
198 | jme->reg_ghc &= ~(GHC_SPEED_1000M | GHC_DPX); | |
199 | jwrite32(jme, JME_GHC, jme->reg_ghc); | |
200 | } | |
201 | ||
202 | static inline void | |
203 | jme_clear_pm(struct jme_adapter *jme) | |
204 | { | |
205 | jwrite32(jme, JME_PMCS, 0xFFFF0000 | jme->reg_pmcs); | |
206 | pci_set_power_state(jme->pdev, PCI_D0); | |
207 | pci_enable_wake(jme->pdev, PCI_D0, false); | |
208 | } | |
209 | ||
210 | static int | |
211 | jme_reload_eeprom(struct jme_adapter *jme) | |
212 | { | |
213 | u32 val; | |
214 | int i; | |
215 | ||
216 | val = jread32(jme, JME_SMBCSR); | |
217 | ||
218 | if (val & SMBCSR_EEPROMD) { | |
219 | val |= SMBCSR_CNACK; | |
220 | jwrite32(jme, JME_SMBCSR, val); | |
221 | val |= SMBCSR_RELOAD; | |
222 | jwrite32(jme, JME_SMBCSR, val); | |
223 | mdelay(12); | |
224 | ||
225 | for (i = JME_EEPROM_RELOAD_TIMEOUT; i > 0; --i) { | |
226 | mdelay(1); | |
227 | if ((jread32(jme, JME_SMBCSR) & SMBCSR_RELOAD) == 0) | |
228 | break; | |
229 | } | |
230 | ||
231 | if (i == 0) { | |
49d70c48 | 232 | pr_err("eeprom reload timeout\n"); |
95252236 GFT |
233 | return -EIO; |
234 | } | |
235 | } | |
236 | ||
237 | return 0; | |
238 | } | |
239 | ||
240 | static void | |
241 | jme_load_macaddr(struct net_device *netdev) | |
242 | { | |
243 | struct jme_adapter *jme = netdev_priv(netdev); | |
244 | unsigned char macaddr[6]; | |
245 | u32 val; | |
246 | ||
247 | spin_lock_bh(&jme->macaddr_lock); | |
248 | val = jread32(jme, JME_RXUMA_LO); | |
249 | macaddr[0] = (val >> 0) & 0xFF; | |
250 | macaddr[1] = (val >> 8) & 0xFF; | |
251 | macaddr[2] = (val >> 16) & 0xFF; | |
252 | macaddr[3] = (val >> 24) & 0xFF; | |
253 | val = jread32(jme, JME_RXUMA_HI); | |
254 | macaddr[4] = (val >> 0) & 0xFF; | |
255 | macaddr[5] = (val >> 8) & 0xFF; | |
256 | memcpy(netdev->dev_addr, macaddr, 6); | |
257 | spin_unlock_bh(&jme->macaddr_lock); | |
258 | } | |
259 | ||
260 | static inline void | |
261 | jme_set_rx_pcc(struct jme_adapter *jme, int p) | |
262 | { | |
263 | switch (p) { | |
264 | case PCC_OFF: | |
265 | jwrite32(jme, JME_PCCRX0, | |
266 | ((PCC_OFF_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
267 | ((PCC_OFF_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
268 | break; | |
269 | case PCC_P1: | |
270 | jwrite32(jme, JME_PCCRX0, | |
271 | ((PCC_P1_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
272 | ((PCC_P1_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
273 | break; | |
274 | case PCC_P2: | |
275 | jwrite32(jme, JME_PCCRX0, | |
276 | ((PCC_P2_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
277 | ((PCC_P2_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
278 | break; | |
279 | case PCC_P3: | |
280 | jwrite32(jme, JME_PCCRX0, | |
281 | ((PCC_P3_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
282 | ((PCC_P3_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
283 | break; | |
284 | default: | |
285 | break; | |
286 | } | |
287 | wmb(); | |
288 | ||
289 | if (!(test_bit(JME_FLAG_POLL, &jme->flags))) | |
f8502ce4 | 290 | netif_info(jme, rx_status, jme->dev, "Switched to PCC_P%d\n", p); |
95252236 GFT |
291 | } |
292 | ||
293 | static void | |
294 | jme_start_irq(struct jme_adapter *jme) | |
295 | { | |
296 | register struct dynpcc_info *dpi = &(jme->dpi); | |
297 | ||
298 | jme_set_rx_pcc(jme, PCC_P1); | |
299 | dpi->cur = PCC_P1; | |
300 | dpi->attempt = PCC_P1; | |
301 | dpi->cnt = 0; | |
302 | ||
303 | jwrite32(jme, JME_PCCTX, | |
304 | ((PCC_TX_TO << PCCTXTO_SHIFT) & PCCTXTO_MASK) | | |
305 | ((PCC_TX_CNT << PCCTX_SHIFT) & PCCTX_MASK) | | |
306 | PCCTXQ0_EN | |
307 | ); | |
308 | ||
309 | /* | |
310 | * Enable Interrupts | |
311 | */ | |
312 | jwrite32(jme, JME_IENS, INTR_ENABLE); | |
313 | } | |
314 | ||
315 | static inline void | |
316 | jme_stop_irq(struct jme_adapter *jme) | |
317 | { | |
318 | /* | |
319 | * Disable Interrupts | |
320 | */ | |
321 | jwrite32f(jme, JME_IENC, INTR_ENABLE); | |
322 | } | |
323 | ||
95252236 GFT |
324 | static u32 |
325 | jme_linkstat_from_phy(struct jme_adapter *jme) | |
326 | { | |
327 | u32 phylink, bmsr; | |
328 | ||
329 | phylink = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 17); | |
330 | bmsr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMSR); | |
331 | if (bmsr & BMSR_ANCOMP) | |
332 | phylink |= PHY_LINK_AUTONEG_COMPLETE; | |
333 | ||
334 | return phylink; | |
335 | } | |
336 | ||
337 | static inline void | |
338 | jme_set_phyfifoa(struct jme_adapter *jme) | |
339 | { | |
340 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0004); | |
341 | } | |
342 | ||
343 | static inline void | |
344 | jme_set_phyfifob(struct jme_adapter *jme) | |
345 | { | |
346 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0000); | |
347 | } | |
348 | ||
349 | static int | |
350 | jme_check_link(struct net_device *netdev, int testonly) | |
351 | { | |
352 | struct jme_adapter *jme = netdev_priv(netdev); | |
a821ebe5 | 353 | u32 phylink, ghc, cnt = JME_SPDRSV_TIMEOUT, bmcr, gpreg1; |
95252236 GFT |
354 | char linkmsg[64]; |
355 | int rc = 0; | |
356 | ||
357 | linkmsg[0] = '\0'; | |
358 | ||
359 | if (jme->fpgaver) | |
360 | phylink = jme_linkstat_from_phy(jme); | |
361 | else | |
362 | phylink = jread32(jme, JME_PHY_LINK); | |
363 | ||
364 | if (phylink & PHY_LINK_UP) { | |
365 | if (!(phylink & PHY_LINK_AUTONEG_COMPLETE)) { | |
366 | /* | |
367 | * If we did not enable AN | |
368 | * Speed/Duplex Info should be obtained from SMI | |
369 | */ | |
370 | phylink = PHY_LINK_UP; | |
371 | ||
372 | bmcr = jme_mdio_read(jme->dev, | |
373 | jme->mii_if.phy_id, | |
374 | MII_BMCR); | |
375 | ||
376 | phylink |= ((bmcr & BMCR_SPEED1000) && | |
377 | (bmcr & BMCR_SPEED100) == 0) ? | |
378 | PHY_LINK_SPEED_1000M : | |
379 | (bmcr & BMCR_SPEED100) ? | |
380 | PHY_LINK_SPEED_100M : | |
381 | PHY_LINK_SPEED_10M; | |
382 | ||
383 | phylink |= (bmcr & BMCR_FULLDPLX) ? | |
384 | PHY_LINK_DUPLEX : 0; | |
385 | ||
386 | strcat(linkmsg, "Forced: "); | |
387 | } else { | |
388 | /* | |
389 | * Keep polling for speed/duplex resolve complete | |
390 | */ | |
391 | while (!(phylink & PHY_LINK_SPEEDDPU_RESOLVED) && | |
392 | --cnt) { | |
393 | ||
394 | udelay(1); | |
395 | ||
396 | if (jme->fpgaver) | |
397 | phylink = jme_linkstat_from_phy(jme); | |
398 | else | |
399 | phylink = jread32(jme, JME_PHY_LINK); | |
400 | } | |
401 | if (!cnt) | |
49d70c48 | 402 | pr_err("Waiting speed resolve timeout\n"); |
95252236 GFT |
403 | |
404 | strcat(linkmsg, "ANed: "); | |
405 | } | |
406 | ||
407 | if (jme->phylink == phylink) { | |
408 | rc = 1; | |
409 | goto out; | |
410 | } | |
411 | if (testonly) | |
412 | goto out; | |
413 | ||
414 | jme->phylink = phylink; | |
415 | ||
eb352b83 GFT |
416 | ghc = jme->reg_ghc & ~(GHC_SPEED | GHC_DPX | |
417 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE | | |
418 | GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY); | |
95252236 GFT |
419 | switch (phylink & PHY_LINK_SPEED_MASK) { |
420 | case PHY_LINK_SPEED_10M: | |
4f40bf46 | 421 | ghc |= GHC_SPEED_10M | |
422 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; | |
95252236 | 423 | strcat(linkmsg, "10 Mbps, "); |
95252236 GFT |
424 | break; |
425 | case PHY_LINK_SPEED_100M: | |
4f40bf46 | 426 | ghc |= GHC_SPEED_100M | |
427 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; | |
95252236 | 428 | strcat(linkmsg, "100 Mbps, "); |
95252236 GFT |
429 | break; |
430 | case PHY_LINK_SPEED_1000M: | |
4f40bf46 | 431 | ghc |= GHC_SPEED_1000M | |
432 | GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY; | |
95252236 | 433 | strcat(linkmsg, "1000 Mbps, "); |
95252236 GFT |
434 | break; |
435 | default: | |
436 | break; | |
437 | } | |
95252236 GFT |
438 | |
439 | if (phylink & PHY_LINK_DUPLEX) { | |
440 | jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT); | |
a821ebe5 | 441 | ghc |= GHC_DPX; |
95252236 GFT |
442 | } else { |
443 | jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT | | |
444 | TXMCS_BACKOFF | | |
445 | TXMCS_CARRIERSENSE | | |
446 | TXMCS_COLLISION); | |
447 | jwrite32(jme, JME_TXTRHD, TXTRHD_TXPEN | | |
448 | ((0x2000 << TXTRHD_TXP_SHIFT) & TXTRHD_TXP) | | |
449 | TXTRHD_TXREN | | |
450 | ((8 << TXTRHD_TXRL_SHIFT) & TXTRHD_TXRL)); | |
451 | } | |
a821ebe5 GFT |
452 | |
453 | gpreg1 = GPREG1_DEFAULT; | |
454 | if (is_buggy250(jme->pdev->device, jme->chiprev)) { | |
455 | if (!(phylink & PHY_LINK_DUPLEX)) | |
456 | gpreg1 |= GPREG1_HALFMODEPATCH; | |
457 | switch (phylink & PHY_LINK_SPEED_MASK) { | |
458 | case PHY_LINK_SPEED_10M: | |
459 | jme_set_phyfifoa(jme); | |
460 | gpreg1 |= GPREG1_RSSPATCH; | |
461 | break; | |
462 | case PHY_LINK_SPEED_100M: | |
463 | jme_set_phyfifob(jme); | |
464 | gpreg1 |= GPREG1_RSSPATCH; | |
465 | break; | |
466 | case PHY_LINK_SPEED_1000M: | |
467 | jme_set_phyfifoa(jme); | |
468 | break; | |
469 | default: | |
470 | break; | |
471 | } | |
472 | } | |
95252236 | 473 | |
4f40bf46 | 474 | jwrite32(jme, JME_GPREG1, gpreg1); |
95252236 | 475 | jwrite32(jme, JME_GHC, ghc); |
4f40bf46 | 476 | jme->reg_ghc = ghc; |
95252236 | 477 | |
4f40bf46 | 478 | strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ? |
479 | "Full-Duplex, " : | |
480 | "Half-Duplex, "); | |
481 | strcat(linkmsg, (phylink & PHY_LINK_MDI_STAT) ? | |
482 | "MDI-X" : | |
483 | "MDI"); | |
49d70c48 | 484 | netif_info(jme, link, jme->dev, "Link is up at %s\n", linkmsg); |
95252236 GFT |
485 | netif_carrier_on(netdev); |
486 | } else { | |
487 | if (testonly) | |
488 | goto out; | |
489 | ||
49d70c48 | 490 | netif_info(jme, link, jme->dev, "Link is down\n"); |
95252236 GFT |
491 | jme->phylink = 0; |
492 | netif_carrier_off(netdev); | |
493 | } | |
494 | ||
495 | out: | |
496 | return rc; | |
497 | } | |
498 | ||
499 | static int | |
500 | jme_setup_tx_resources(struct jme_adapter *jme) | |
501 | { | |
502 | struct jme_ring *txring = &(jme->txring[0]); | |
503 | ||
504 | txring->alloc = dma_alloc_coherent(&(jme->pdev->dev), | |
505 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), | |
506 | &(txring->dmaalloc), | |
507 | GFP_ATOMIC); | |
508 | ||
47bd10d1 GFT |
509 | if (!txring->alloc) |
510 | goto err_set_null; | |
95252236 GFT |
511 | |
512 | /* | |
513 | * 16 Bytes align | |
514 | */ | |
515 | txring->desc = (void *)ALIGN((unsigned long)(txring->alloc), | |
516 | RING_DESC_ALIGN); | |
517 | txring->dma = ALIGN(txring->dmaalloc, RING_DESC_ALIGN); | |
518 | txring->next_to_use = 0; | |
519 | atomic_set(&txring->next_to_clean, 0); | |
520 | atomic_set(&txring->nr_free, jme->tx_ring_size); | |
521 | ||
47bd10d1 GFT |
522 | txring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * |
523 | jme->tx_ring_size, GFP_ATOMIC); | |
524 | if (unlikely(!(txring->bufinf))) | |
525 | goto err_free_txring; | |
526 | ||
95252236 GFT |
527 | /* |
528 | * Initialize Transmit Descriptors | |
529 | */ | |
530 | memset(txring->alloc, 0, TX_RING_ALLOC_SIZE(jme->tx_ring_size)); | |
531 | memset(txring->bufinf, 0, | |
532 | sizeof(struct jme_buffer_info) * jme->tx_ring_size); | |
533 | ||
534 | return 0; | |
47bd10d1 GFT |
535 | |
536 | err_free_txring: | |
537 | dma_free_coherent(&(jme->pdev->dev), | |
538 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), | |
539 | txring->alloc, | |
540 | txring->dmaalloc); | |
541 | ||
542 | err_set_null: | |
543 | txring->desc = NULL; | |
544 | txring->dmaalloc = 0; | |
545 | txring->dma = 0; | |
546 | txring->bufinf = NULL; | |
547 | ||
548 | return -ENOMEM; | |
95252236 GFT |
549 | } |
550 | ||
551 | static void | |
552 | jme_free_tx_resources(struct jme_adapter *jme) | |
553 | { | |
554 | int i; | |
555 | struct jme_ring *txring = &(jme->txring[0]); | |
eacf69a1 | 556 | struct jme_buffer_info *txbi; |
95252236 GFT |
557 | |
558 | if (txring->alloc) { | |
47bd10d1 GFT |
559 | if (txring->bufinf) { |
560 | for (i = 0 ; i < jme->tx_ring_size ; ++i) { | |
561 | txbi = txring->bufinf + i; | |
562 | if (txbi->skb) { | |
563 | dev_kfree_skb(txbi->skb); | |
564 | txbi->skb = NULL; | |
565 | } | |
566 | txbi->mapping = 0; | |
567 | txbi->len = 0; | |
568 | txbi->nr_desc = 0; | |
569 | txbi->start_xmit = 0; | |
95252236 | 570 | } |
47bd10d1 | 571 | kfree(txring->bufinf); |
95252236 GFT |
572 | } |
573 | ||
574 | dma_free_coherent(&(jme->pdev->dev), | |
575 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), | |
576 | txring->alloc, | |
577 | txring->dmaalloc); | |
578 | ||
579 | txring->alloc = NULL; | |
580 | txring->desc = NULL; | |
581 | txring->dmaalloc = 0; | |
582 | txring->dma = 0; | |
47bd10d1 | 583 | txring->bufinf = NULL; |
95252236 GFT |
584 | } |
585 | txring->next_to_use = 0; | |
586 | atomic_set(&txring->next_to_clean, 0); | |
587 | atomic_set(&txring->nr_free, 0); | |
95252236 GFT |
588 | } |
589 | ||
590 | static inline void | |
591 | jme_enable_tx_engine(struct jme_adapter *jme) | |
592 | { | |
593 | /* | |
594 | * Select Queue 0 | |
595 | */ | |
596 | jwrite32(jme, JME_TXCS, TXCS_DEFAULT | TXCS_SELECT_QUEUE0); | |
597 | wmb(); | |
598 | ||
599 | /* | |
600 | * Setup TX Queue 0 DMA Bass Address | |
601 | */ | |
602 | jwrite32(jme, JME_TXDBA_LO, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); | |
603 | jwrite32(jme, JME_TXDBA_HI, (__u64)(jme->txring[0].dma) >> 32); | |
604 | jwrite32(jme, JME_TXNDA, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); | |
605 | ||
606 | /* | |
607 | * Setup TX Descptor Count | |
608 | */ | |
609 | jwrite32(jme, JME_TXQDC, jme->tx_ring_size); | |
610 | ||
611 | /* | |
612 | * Enable TX Engine | |
613 | */ | |
614 | wmb(); | |
615 | jwrite32(jme, JME_TXCS, jme->reg_txcs | | |
616 | TXCS_SELECT_QUEUE0 | | |
617 | TXCS_ENABLE); | |
618 | ||
619 | } | |
620 | ||
621 | static inline void | |
622 | jme_restart_tx_engine(struct jme_adapter *jme) | |
623 | { | |
624 | /* | |
625 | * Restart TX Engine | |
626 | */ | |
627 | jwrite32(jme, JME_TXCS, jme->reg_txcs | | |
628 | TXCS_SELECT_QUEUE0 | | |
629 | TXCS_ENABLE); | |
630 | } | |
631 | ||
632 | static inline void | |
633 | jme_disable_tx_engine(struct jme_adapter *jme) | |
634 | { | |
635 | int i; | |
636 | u32 val; | |
637 | ||
638 | /* | |
639 | * Disable TX Engine | |
640 | */ | |
641 | jwrite32(jme, JME_TXCS, jme->reg_txcs | TXCS_SELECT_QUEUE0); | |
642 | wmb(); | |
643 | ||
644 | val = jread32(jme, JME_TXCS); | |
645 | for (i = JME_TX_DISABLE_TIMEOUT ; (val & TXCS_ENABLE) && i > 0 ; --i) { | |
646 | mdelay(1); | |
647 | val = jread32(jme, JME_TXCS); | |
648 | rmb(); | |
649 | } | |
650 | ||
651 | if (!i) | |
49d70c48 | 652 | pr_err("Disable TX engine timeout\n"); |
95252236 GFT |
653 | } |
654 | ||
655 | static void | |
656 | jme_set_clean_rxdesc(struct jme_adapter *jme, int i) | |
657 | { | |
eacf69a1 | 658 | struct jme_ring *rxring = &(jme->rxring[0]); |
95252236 GFT |
659 | register struct rxdesc *rxdesc = rxring->desc; |
660 | struct jme_buffer_info *rxbi = rxring->bufinf; | |
661 | rxdesc += i; | |
662 | rxbi += i; | |
663 | ||
664 | rxdesc->dw[0] = 0; | |
665 | rxdesc->dw[1] = 0; | |
666 | rxdesc->desc1.bufaddrh = cpu_to_le32((__u64)rxbi->mapping >> 32); | |
667 | rxdesc->desc1.bufaddrl = cpu_to_le32( | |
668 | (__u64)rxbi->mapping & 0xFFFFFFFFUL); | |
669 | rxdesc->desc1.datalen = cpu_to_le16(rxbi->len); | |
670 | if (jme->dev->features & NETIF_F_HIGHDMA) | |
671 | rxdesc->desc1.flags = RXFLAG_64BIT; | |
672 | wmb(); | |
673 | rxdesc->desc1.flags |= RXFLAG_OWN | RXFLAG_INT; | |
674 | } | |
675 | ||
676 | static int | |
677 | jme_make_new_rx_buf(struct jme_adapter *jme, int i) | |
678 | { | |
679 | struct jme_ring *rxring = &(jme->rxring[0]); | |
680 | struct jme_buffer_info *rxbi = rxring->bufinf + i; | |
681 | struct sk_buff *skb; | |
682 | ||
683 | skb = netdev_alloc_skb(jme->dev, | |
684 | jme->dev->mtu + RX_EXTRA_LEN); | |
685 | if (unlikely(!skb)) | |
686 | return -ENOMEM; | |
687 | ||
688 | rxbi->skb = skb; | |
689 | rxbi->len = skb_tailroom(skb); | |
690 | rxbi->mapping = pci_map_page(jme->pdev, | |
691 | virt_to_page(skb->data), | |
692 | offset_in_page(skb->data), | |
693 | rxbi->len, | |
694 | PCI_DMA_FROMDEVICE); | |
695 | ||
696 | return 0; | |
697 | } | |
698 | ||
699 | static void | |
700 | jme_free_rx_buf(struct jme_adapter *jme, int i) | |
701 | { | |
702 | struct jme_ring *rxring = &(jme->rxring[0]); | |
703 | struct jme_buffer_info *rxbi = rxring->bufinf; | |
704 | rxbi += i; | |
705 | ||
706 | if (rxbi->skb) { | |
707 | pci_unmap_page(jme->pdev, | |
708 | rxbi->mapping, | |
709 | rxbi->len, | |
710 | PCI_DMA_FROMDEVICE); | |
711 | dev_kfree_skb(rxbi->skb); | |
712 | rxbi->skb = NULL; | |
713 | rxbi->mapping = 0; | |
714 | rxbi->len = 0; | |
715 | } | |
716 | } | |
717 | ||
718 | static void | |
719 | jme_free_rx_resources(struct jme_adapter *jme) | |
720 | { | |
721 | int i; | |
722 | struct jme_ring *rxring = &(jme->rxring[0]); | |
723 | ||
724 | if (rxring->alloc) { | |
47bd10d1 GFT |
725 | if (rxring->bufinf) { |
726 | for (i = 0 ; i < jme->rx_ring_size ; ++i) | |
727 | jme_free_rx_buf(jme, i); | |
728 | kfree(rxring->bufinf); | |
729 | } | |
95252236 GFT |
730 | |
731 | dma_free_coherent(&(jme->pdev->dev), | |
732 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), | |
733 | rxring->alloc, | |
734 | rxring->dmaalloc); | |
735 | rxring->alloc = NULL; | |
736 | rxring->desc = NULL; | |
737 | rxring->dmaalloc = 0; | |
738 | rxring->dma = 0; | |
47bd10d1 | 739 | rxring->bufinf = NULL; |
95252236 GFT |
740 | } |
741 | rxring->next_to_use = 0; | |
742 | atomic_set(&rxring->next_to_clean, 0); | |
743 | } | |
744 | ||
745 | static int | |
746 | jme_setup_rx_resources(struct jme_adapter *jme) | |
747 | { | |
748 | int i; | |
749 | struct jme_ring *rxring = &(jme->rxring[0]); | |
750 | ||
751 | rxring->alloc = dma_alloc_coherent(&(jme->pdev->dev), | |
752 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), | |
753 | &(rxring->dmaalloc), | |
754 | GFP_ATOMIC); | |
47bd10d1 GFT |
755 | if (!rxring->alloc) |
756 | goto err_set_null; | |
95252236 GFT |
757 | |
758 | /* | |
759 | * 16 Bytes align | |
760 | */ | |
761 | rxring->desc = (void *)ALIGN((unsigned long)(rxring->alloc), | |
762 | RING_DESC_ALIGN); | |
763 | rxring->dma = ALIGN(rxring->dmaalloc, RING_DESC_ALIGN); | |
764 | rxring->next_to_use = 0; | |
765 | atomic_set(&rxring->next_to_clean, 0); | |
766 | ||
47bd10d1 GFT |
767 | rxring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * |
768 | jme->rx_ring_size, GFP_ATOMIC); | |
769 | if (unlikely(!(rxring->bufinf))) | |
770 | goto err_free_rxring; | |
771 | ||
95252236 GFT |
772 | /* |
773 | * Initiallize Receive Descriptors | |
774 | */ | |
47bd10d1 GFT |
775 | memset(rxring->bufinf, 0, |
776 | sizeof(struct jme_buffer_info) * jme->rx_ring_size); | |
95252236 GFT |
777 | for (i = 0 ; i < jme->rx_ring_size ; ++i) { |
778 | if (unlikely(jme_make_new_rx_buf(jme, i))) { | |
779 | jme_free_rx_resources(jme); | |
780 | return -ENOMEM; | |
781 | } | |
782 | ||
783 | jme_set_clean_rxdesc(jme, i); | |
784 | } | |
785 | ||
786 | return 0; | |
47bd10d1 GFT |
787 | |
788 | err_free_rxring: | |
789 | dma_free_coherent(&(jme->pdev->dev), | |
790 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), | |
791 | rxring->alloc, | |
792 | rxring->dmaalloc); | |
793 | err_set_null: | |
794 | rxring->desc = NULL; | |
795 | rxring->dmaalloc = 0; | |
796 | rxring->dma = 0; | |
797 | rxring->bufinf = NULL; | |
798 | ||
799 | return -ENOMEM; | |
95252236 GFT |
800 | } |
801 | ||
802 | static inline void | |
803 | jme_enable_rx_engine(struct jme_adapter *jme) | |
804 | { | |
805 | /* | |
806 | * Select Queue 0 | |
807 | */ | |
808 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | | |
809 | RXCS_QUEUESEL_Q0); | |
810 | wmb(); | |
811 | ||
812 | /* | |
813 | * Setup RX DMA Bass Address | |
814 | */ | |
eacf69a1 | 815 | jwrite32(jme, JME_RXDBA_LO, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); |
95252236 | 816 | jwrite32(jme, JME_RXDBA_HI, (__u64)(jme->rxring[0].dma) >> 32); |
eacf69a1 | 817 | jwrite32(jme, JME_RXNDA, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); |
95252236 GFT |
818 | |
819 | /* | |
820 | * Setup RX Descriptor Count | |
821 | */ | |
822 | jwrite32(jme, JME_RXQDC, jme->rx_ring_size); | |
823 | ||
824 | /* | |
825 | * Setup Unicast Filter | |
826 | */ | |
827 | jme_set_multi(jme->dev); | |
828 | ||
829 | /* | |
830 | * Enable RX Engine | |
831 | */ | |
832 | wmb(); | |
833 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | | |
834 | RXCS_QUEUESEL_Q0 | | |
835 | RXCS_ENABLE | | |
836 | RXCS_QST); | |
837 | } | |
838 | ||
839 | static inline void | |
840 | jme_restart_rx_engine(struct jme_adapter *jme) | |
841 | { | |
842 | /* | |
843 | * Start RX Engine | |
844 | */ | |
845 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | | |
846 | RXCS_QUEUESEL_Q0 | | |
847 | RXCS_ENABLE | | |
848 | RXCS_QST); | |
849 | } | |
850 | ||
851 | static inline void | |
852 | jme_disable_rx_engine(struct jme_adapter *jme) | |
853 | { | |
854 | int i; | |
855 | u32 val; | |
856 | ||
857 | /* | |
858 | * Disable RX Engine | |
859 | */ | |
860 | jwrite32(jme, JME_RXCS, jme->reg_rxcs); | |
861 | wmb(); | |
862 | ||
863 | val = jread32(jme, JME_RXCS); | |
864 | for (i = JME_RX_DISABLE_TIMEOUT ; (val & RXCS_ENABLE) && i > 0 ; --i) { | |
865 | mdelay(1); | |
866 | val = jread32(jme, JME_RXCS); | |
867 | rmb(); | |
868 | } | |
869 | ||
870 | if (!i) | |
49d70c48 | 871 | pr_err("Disable RX engine timeout\n"); |
95252236 GFT |
872 | |
873 | } | |
874 | ||
875 | static int | |
876 | jme_rxsum_ok(struct jme_adapter *jme, u16 flags) | |
877 | { | |
878 | if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4))) | |
879 | return false; | |
880 | ||
ce7d70af GFT |
881 | if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_TCPON | RXWBFLAG_TCPCS)) |
882 | == RXWBFLAG_TCPON)) { | |
883 | if (flags & RXWBFLAG_IPV4) | |
f8502ce4 | 884 | netif_err(jme, rx_err, jme->dev, "TCP Checksum error\n"); |
ce7d70af | 885 | return false; |
95252236 GFT |
886 | } |
887 | ||
ce7d70af GFT |
888 | if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_UDPON | RXWBFLAG_UDPCS)) |
889 | == RXWBFLAG_UDPON)) { | |
890 | if (flags & RXWBFLAG_IPV4) | |
49d70c48 | 891 | netif_err(jme, rx_err, jme->dev, "UDP Checksum error\n"); |
ce7d70af | 892 | return false; |
95252236 GFT |
893 | } |
894 | ||
ce7d70af GFT |
895 | if (unlikely((flags & (RXWBFLAG_IPV4 | RXWBFLAG_IPCS)) |
896 | == RXWBFLAG_IPV4)) { | |
49d70c48 | 897 | netif_err(jme, rx_err, jme->dev, "IPv4 Checksum error\n"); |
ce7d70af | 898 | return false; |
95252236 GFT |
899 | } |
900 | ||
901 | return true; | |
95252236 GFT |
902 | } |
903 | ||
904 | static void | |
905 | jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx) | |
906 | { | |
907 | struct jme_ring *rxring = &(jme->rxring[0]); | |
908 | struct rxdesc *rxdesc = rxring->desc; | |
909 | struct jme_buffer_info *rxbi = rxring->bufinf; | |
910 | struct sk_buff *skb; | |
911 | int framesize; | |
912 | ||
913 | rxdesc += idx; | |
914 | rxbi += idx; | |
915 | ||
916 | skb = rxbi->skb; | |
917 | pci_dma_sync_single_for_cpu(jme->pdev, | |
918 | rxbi->mapping, | |
919 | rxbi->len, | |
920 | PCI_DMA_FROMDEVICE); | |
921 | ||
922 | if (unlikely(jme_make_new_rx_buf(jme, idx))) { | |
923 | pci_dma_sync_single_for_device(jme->pdev, | |
924 | rxbi->mapping, | |
925 | rxbi->len, | |
926 | PCI_DMA_FROMDEVICE); | |
927 | ||
928 | ++(NET_STAT(jme).rx_dropped); | |
929 | } else { | |
930 | framesize = le16_to_cpu(rxdesc->descwb.framesize) | |
931 | - RX_PREPAD_SIZE; | |
932 | ||
933 | skb_reserve(skb, RX_PREPAD_SIZE); | |
934 | skb_put(skb, framesize); | |
935 | skb->protocol = eth_type_trans(skb, jme->dev); | |
936 | ||
31c221c4 | 937 | if (jme_rxsum_ok(jme, le16_to_cpu(rxdesc->descwb.flags))) |
95252236 GFT |
938 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
939 | else | |
bc8acf2c | 940 | skb_checksum_none_assert(skb); |
95252236 | 941 | |
31c221c4 | 942 | if (rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_TAGON)) { |
95252236 GFT |
943 | if (jme->vlgrp) { |
944 | jme->jme_vlan_rx(skb, jme->vlgrp, | |
31c221c4 | 945 | le16_to_cpu(rxdesc->descwb.vlan)); |
95252236 | 946 | NET_STAT(jme).rx_bytes += 4; |
17da69b8 GFT |
947 | } else { |
948 | dev_kfree_skb(skb); | |
95252236 GFT |
949 | } |
950 | } else { | |
951 | jme->jme_rx(skb); | |
952 | } | |
953 | ||
31c221c4 HH |
954 | if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_DEST)) == |
955 | cpu_to_le16(RXWBFLAG_DEST_MUL)) | |
95252236 GFT |
956 | ++(NET_STAT(jme).multicast); |
957 | ||
95252236 GFT |
958 | NET_STAT(jme).rx_bytes += framesize; |
959 | ++(NET_STAT(jme).rx_packets); | |
960 | } | |
961 | ||
962 | jme_set_clean_rxdesc(jme, idx); | |
963 | ||
964 | } | |
965 | ||
966 | static int | |
967 | jme_process_receive(struct jme_adapter *jme, int limit) | |
968 | { | |
969 | struct jme_ring *rxring = &(jme->rxring[0]); | |
970 | struct rxdesc *rxdesc = rxring->desc; | |
971 | int i, j, ccnt, desccnt, mask = jme->rx_ring_mask; | |
972 | ||
973 | if (unlikely(!atomic_dec_and_test(&jme->rx_cleaning))) | |
974 | goto out_inc; | |
975 | ||
976 | if (unlikely(atomic_read(&jme->link_changing) != 1)) | |
977 | goto out_inc; | |
978 | ||
979 | if (unlikely(!netif_carrier_ok(jme->dev))) | |
980 | goto out_inc; | |
981 | ||
982 | i = atomic_read(&rxring->next_to_clean); | |
858b9ced | 983 | while (limit > 0) { |
95252236 GFT |
984 | rxdesc = rxring->desc; |
985 | rxdesc += i; | |
986 | ||
31c221c4 | 987 | if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_OWN)) || |
95252236 GFT |
988 | !(rxdesc->descwb.desccnt & RXWBDCNT_WBCPL)) |
989 | goto out; | |
858b9ced | 990 | --limit; |
95252236 GFT |
991 | |
992 | desccnt = rxdesc->descwb.desccnt & RXWBDCNT_DCNT; | |
993 | ||
994 | if (unlikely(desccnt > 1 || | |
995 | rxdesc->descwb.errstat & RXWBERR_ALLERR)) { | |
996 | ||
997 | if (rxdesc->descwb.errstat & RXWBERR_CRCERR) | |
998 | ++(NET_STAT(jme).rx_crc_errors); | |
999 | else if (rxdesc->descwb.errstat & RXWBERR_OVERUN) | |
1000 | ++(NET_STAT(jme).rx_fifo_errors); | |
1001 | else | |
1002 | ++(NET_STAT(jme).rx_errors); | |
1003 | ||
1004 | if (desccnt > 1) | |
1005 | limit -= desccnt - 1; | |
1006 | ||
1007 | for (j = i, ccnt = desccnt ; ccnt-- ; ) { | |
1008 | jme_set_clean_rxdesc(jme, j); | |
1009 | j = (j + 1) & (mask); | |
1010 | } | |
1011 | ||
1012 | } else { | |
1013 | jme_alloc_and_feed_skb(jme, i); | |
1014 | } | |
1015 | ||
1016 | i = (i + desccnt) & (mask); | |
1017 | } | |
1018 | ||
1019 | out: | |
1020 | atomic_set(&rxring->next_to_clean, i); | |
1021 | ||
1022 | out_inc: | |
1023 | atomic_inc(&jme->rx_cleaning); | |
1024 | ||
1025 | return limit > 0 ? limit : 0; | |
1026 | ||
1027 | } | |
1028 | ||
1029 | static void | |
1030 | jme_attempt_pcc(struct dynpcc_info *dpi, int atmp) | |
1031 | { | |
1032 | if (likely(atmp == dpi->cur)) { | |
1033 | dpi->cnt = 0; | |
1034 | return; | |
1035 | } | |
1036 | ||
1037 | if (dpi->attempt == atmp) { | |
1038 | ++(dpi->cnt); | |
1039 | } else { | |
1040 | dpi->attempt = atmp; | |
1041 | dpi->cnt = 0; | |
1042 | } | |
1043 | ||
1044 | } | |
1045 | ||
1046 | static void | |
1047 | jme_dynamic_pcc(struct jme_adapter *jme) | |
1048 | { | |
1049 | register struct dynpcc_info *dpi = &(jme->dpi); | |
1050 | ||
1051 | if ((NET_STAT(jme).rx_bytes - dpi->last_bytes) > PCC_P3_THRESHOLD) | |
1052 | jme_attempt_pcc(dpi, PCC_P3); | |
8e95a202 JP |
1053 | else if ((NET_STAT(jme).rx_packets - dpi->last_pkts) > PCC_P2_THRESHOLD || |
1054 | dpi->intr_cnt > PCC_INTR_THRESHOLD) | |
95252236 GFT |
1055 | jme_attempt_pcc(dpi, PCC_P2); |
1056 | else | |
1057 | jme_attempt_pcc(dpi, PCC_P1); | |
1058 | ||
1059 | if (unlikely(dpi->attempt != dpi->cur && dpi->cnt > 5)) { | |
1060 | if (dpi->attempt < dpi->cur) | |
1061 | tasklet_schedule(&jme->rxclean_task); | |
1062 | jme_set_rx_pcc(jme, dpi->attempt); | |
1063 | dpi->cur = dpi->attempt; | |
1064 | dpi->cnt = 0; | |
1065 | } | |
1066 | } | |
1067 | ||
1068 | static void | |
1069 | jme_start_pcc_timer(struct jme_adapter *jme) | |
1070 | { | |
1071 | struct dynpcc_info *dpi = &(jme->dpi); | |
1072 | dpi->last_bytes = NET_STAT(jme).rx_bytes; | |
1073 | dpi->last_pkts = NET_STAT(jme).rx_packets; | |
1074 | dpi->intr_cnt = 0; | |
1075 | jwrite32(jme, JME_TMCSR, | |
1076 | TMCSR_EN | ((0xFFFFFF - PCC_INTERVAL_US) & TMCSR_CNT)); | |
1077 | } | |
1078 | ||
1079 | static inline void | |
1080 | jme_stop_pcc_timer(struct jme_adapter *jme) | |
1081 | { | |
1082 | jwrite32(jme, JME_TMCSR, 0); | |
1083 | } | |
1084 | ||
1085 | static void | |
1086 | jme_shutdown_nic(struct jme_adapter *jme) | |
1087 | { | |
1088 | u32 phylink; | |
1089 | ||
1090 | phylink = jme_linkstat_from_phy(jme); | |
1091 | ||
1092 | if (!(phylink & PHY_LINK_UP)) { | |
1093 | /* | |
1094 | * Disable all interrupt before issue timer | |
1095 | */ | |
1096 | jme_stop_irq(jme); | |
1097 | jwrite32(jme, JME_TIMER2, TMCSR_EN | 0xFFFFFE); | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | static void | |
1102 | jme_pcc_tasklet(unsigned long arg) | |
1103 | { | |
1104 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1105 | struct net_device *netdev = jme->dev; | |
1106 | ||
1107 | if (unlikely(test_bit(JME_FLAG_SHUTDOWN, &jme->flags))) { | |
1108 | jme_shutdown_nic(jme); | |
1109 | return; | |
1110 | } | |
1111 | ||
1112 | if (unlikely(!netif_carrier_ok(netdev) || | |
1113 | (atomic_read(&jme->link_changing) != 1) | |
1114 | )) { | |
1115 | jme_stop_pcc_timer(jme); | |
1116 | return; | |
1117 | } | |
1118 | ||
1119 | if (!(test_bit(JME_FLAG_POLL, &jme->flags))) | |
1120 | jme_dynamic_pcc(jme); | |
1121 | ||
1122 | jme_start_pcc_timer(jme); | |
1123 | } | |
1124 | ||
1125 | static inline void | |
1126 | jme_polling_mode(struct jme_adapter *jme) | |
1127 | { | |
1128 | jme_set_rx_pcc(jme, PCC_OFF); | |
1129 | } | |
1130 | ||
1131 | static inline void | |
1132 | jme_interrupt_mode(struct jme_adapter *jme) | |
1133 | { | |
1134 | jme_set_rx_pcc(jme, PCC_P1); | |
1135 | } | |
1136 | ||
1137 | static inline int | |
1138 | jme_pseudo_hotplug_enabled(struct jme_adapter *jme) | |
1139 | { | |
1140 | u32 apmc; | |
1141 | apmc = jread32(jme, JME_APMC); | |
1142 | return apmc & JME_APMC_PSEUDO_HP_EN; | |
1143 | } | |
1144 | ||
1145 | static void | |
1146 | jme_start_shutdown_timer(struct jme_adapter *jme) | |
1147 | { | |
1148 | u32 apmc; | |
1149 | ||
1150 | apmc = jread32(jme, JME_APMC) | JME_APMC_PCIE_SD_EN; | |
1151 | apmc &= ~JME_APMC_EPIEN_CTRL; | |
1152 | if (!no_extplug) { | |
1153 | jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_EN); | |
1154 | wmb(); | |
1155 | } | |
1156 | jwrite32f(jme, JME_APMC, apmc); | |
1157 | ||
1158 | jwrite32f(jme, JME_TIMER2, 0); | |
1159 | set_bit(JME_FLAG_SHUTDOWN, &jme->flags); | |
1160 | jwrite32(jme, JME_TMCSR, | |
1161 | TMCSR_EN | ((0xFFFFFF - APMC_PHP_SHUTDOWN_DELAY) & TMCSR_CNT)); | |
1162 | } | |
1163 | ||
1164 | static void | |
1165 | jme_stop_shutdown_timer(struct jme_adapter *jme) | |
1166 | { | |
1167 | u32 apmc; | |
1168 | ||
1169 | jwrite32f(jme, JME_TMCSR, 0); | |
1170 | jwrite32f(jme, JME_TIMER2, 0); | |
1171 | clear_bit(JME_FLAG_SHUTDOWN, &jme->flags); | |
1172 | ||
1173 | apmc = jread32(jme, JME_APMC); | |
1174 | apmc &= ~(JME_APMC_PCIE_SD_EN | JME_APMC_EPIEN_CTRL); | |
1175 | jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_DIS); | |
1176 | wmb(); | |
1177 | jwrite32f(jme, JME_APMC, apmc); | |
1178 | } | |
1179 | ||
1180 | static void | |
1181 | jme_link_change_tasklet(unsigned long arg) | |
1182 | { | |
1183 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1184 | struct net_device *netdev = jme->dev; | |
1185 | int rc; | |
1186 | ||
1187 | while (!atomic_dec_and_test(&jme->link_changing)) { | |
1188 | atomic_inc(&jme->link_changing); | |
49d70c48 | 1189 | netif_info(jme, intr, jme->dev, "Get link change lock failed\n"); |
95252236 | 1190 | while (atomic_read(&jme->link_changing) != 1) |
49d70c48 | 1191 | netif_info(jme, intr, jme->dev, "Waiting link change lock\n"); |
95252236 GFT |
1192 | } |
1193 | ||
1194 | if (jme_check_link(netdev, 1) && jme->old_mtu == netdev->mtu) | |
1195 | goto out; | |
1196 | ||
1197 | jme->old_mtu = netdev->mtu; | |
1198 | netif_stop_queue(netdev); | |
1199 | if (jme_pseudo_hotplug_enabled(jme)) | |
1200 | jme_stop_shutdown_timer(jme); | |
1201 | ||
1202 | jme_stop_pcc_timer(jme); | |
1203 | tasklet_disable(&jme->txclean_task); | |
1204 | tasklet_disable(&jme->rxclean_task); | |
1205 | tasklet_disable(&jme->rxempty_task); | |
1206 | ||
1207 | if (netif_carrier_ok(netdev)) { | |
1208 | jme_reset_ghc_speed(jme); | |
1209 | jme_disable_rx_engine(jme); | |
1210 | jme_disable_tx_engine(jme); | |
1211 | jme_reset_mac_processor(jme); | |
1212 | jme_free_rx_resources(jme); | |
1213 | jme_free_tx_resources(jme); | |
1214 | ||
1215 | if (test_bit(JME_FLAG_POLL, &jme->flags)) | |
1216 | jme_polling_mode(jme); | |
1217 | ||
1218 | netif_carrier_off(netdev); | |
1219 | } | |
1220 | ||
1221 | jme_check_link(netdev, 0); | |
1222 | if (netif_carrier_ok(netdev)) { | |
1223 | rc = jme_setup_rx_resources(jme); | |
1224 | if (rc) { | |
49d70c48 | 1225 | pr_err("Allocating resources for RX error, Device STOPPED!\n"); |
95252236 GFT |
1226 | goto out_enable_tasklet; |
1227 | } | |
1228 | ||
1229 | rc = jme_setup_tx_resources(jme); | |
1230 | if (rc) { | |
49d70c48 | 1231 | pr_err("Allocating resources for TX error, Device STOPPED!\n"); |
95252236 GFT |
1232 | goto err_out_free_rx_resources; |
1233 | } | |
1234 | ||
1235 | jme_enable_rx_engine(jme); | |
1236 | jme_enable_tx_engine(jme); | |
1237 | ||
1238 | netif_start_queue(netdev); | |
1239 | ||
1240 | if (test_bit(JME_FLAG_POLL, &jme->flags)) | |
1241 | jme_interrupt_mode(jme); | |
1242 | ||
1243 | jme_start_pcc_timer(jme); | |
1244 | } else if (jme_pseudo_hotplug_enabled(jme)) { | |
1245 | jme_start_shutdown_timer(jme); | |
1246 | } | |
1247 | ||
1248 | goto out_enable_tasklet; | |
1249 | ||
1250 | err_out_free_rx_resources: | |
1251 | jme_free_rx_resources(jme); | |
1252 | out_enable_tasklet: | |
1253 | tasklet_enable(&jme->txclean_task); | |
1254 | tasklet_hi_enable(&jme->rxclean_task); | |
1255 | tasklet_hi_enable(&jme->rxempty_task); | |
1256 | out: | |
1257 | atomic_inc(&jme->link_changing); | |
1258 | } | |
1259 | ||
1260 | static void | |
1261 | jme_rx_clean_tasklet(unsigned long arg) | |
1262 | { | |
1263 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1264 | struct dynpcc_info *dpi = &(jme->dpi); | |
1265 | ||
1266 | jme_process_receive(jme, jme->rx_ring_size); | |
1267 | ++(dpi->intr_cnt); | |
1268 | ||
1269 | } | |
1270 | ||
1271 | static int | |
1272 | jme_poll(JME_NAPI_HOLDER(holder), JME_NAPI_WEIGHT(budget)) | |
1273 | { | |
1274 | struct jme_adapter *jme = jme_napi_priv(holder); | |
95252236 GFT |
1275 | int rest; |
1276 | ||
1277 | rest = jme_process_receive(jme, JME_NAPI_WEIGHT_VAL(budget)); | |
1278 | ||
1279 | while (atomic_read(&jme->rx_empty) > 0) { | |
1280 | atomic_dec(&jme->rx_empty); | |
1281 | ++(NET_STAT(jme).rx_dropped); | |
1282 | jme_restart_rx_engine(jme); | |
1283 | } | |
1284 | atomic_inc(&jme->rx_empty); | |
1285 | ||
1286 | if (rest) { | |
1287 | JME_RX_COMPLETE(netdev, holder); | |
1288 | jme_interrupt_mode(jme); | |
1289 | } | |
1290 | ||
1291 | JME_NAPI_WEIGHT_SET(budget, rest); | |
1292 | return JME_NAPI_WEIGHT_VAL(budget) - rest; | |
1293 | } | |
1294 | ||
1295 | static void | |
1296 | jme_rx_empty_tasklet(unsigned long arg) | |
1297 | { | |
1298 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1299 | ||
1300 | if (unlikely(atomic_read(&jme->link_changing) != 1)) | |
1301 | return; | |
1302 | ||
1303 | if (unlikely(!netif_carrier_ok(jme->dev))) | |
1304 | return; | |
1305 | ||
f8502ce4 | 1306 | netif_info(jme, rx_status, jme->dev, "RX Queue Full!\n"); |
95252236 GFT |
1307 | |
1308 | jme_rx_clean_tasklet(arg); | |
1309 | ||
1310 | while (atomic_read(&jme->rx_empty) > 0) { | |
1311 | atomic_dec(&jme->rx_empty); | |
1312 | ++(NET_STAT(jme).rx_dropped); | |
1313 | jme_restart_rx_engine(jme); | |
1314 | } | |
1315 | atomic_inc(&jme->rx_empty); | |
1316 | } | |
1317 | ||
1318 | static void | |
1319 | jme_wake_queue_if_stopped(struct jme_adapter *jme) | |
1320 | { | |
eacf69a1 | 1321 | struct jme_ring *txring = &(jme->txring[0]); |
95252236 GFT |
1322 | |
1323 | smp_wmb(); | |
1324 | if (unlikely(netif_queue_stopped(jme->dev) && | |
1325 | atomic_read(&txring->nr_free) >= (jme->tx_wake_threshold))) { | |
49d70c48 | 1326 | netif_info(jme, tx_done, jme->dev, "TX Queue Waked\n"); |
95252236 GFT |
1327 | netif_wake_queue(jme->dev); |
1328 | } | |
1329 | ||
1330 | } | |
1331 | ||
1332 | static void | |
1333 | jme_tx_clean_tasklet(unsigned long arg) | |
1334 | { | |
1335 | struct jme_adapter *jme = (struct jme_adapter *)arg; | |
1336 | struct jme_ring *txring = &(jme->txring[0]); | |
1337 | struct txdesc *txdesc = txring->desc; | |
1338 | struct jme_buffer_info *txbi = txring->bufinf, *ctxbi, *ttxbi; | |
1339 | int i, j, cnt = 0, max, err, mask; | |
1340 | ||
49d70c48 | 1341 | tx_dbg(jme, "Into txclean\n"); |
95252236 GFT |
1342 | |
1343 | if (unlikely(!atomic_dec_and_test(&jme->tx_cleaning))) | |
1344 | goto out; | |
1345 | ||
1346 | if (unlikely(atomic_read(&jme->link_changing) != 1)) | |
1347 | goto out; | |
1348 | ||
1349 | if (unlikely(!netif_carrier_ok(jme->dev))) | |
1350 | goto out; | |
1351 | ||
1352 | max = jme->tx_ring_size - atomic_read(&txring->nr_free); | |
1353 | mask = jme->tx_ring_mask; | |
1354 | ||
1355 | for (i = atomic_read(&txring->next_to_clean) ; cnt < max ; ) { | |
1356 | ||
1357 | ctxbi = txbi + i; | |
1358 | ||
1359 | if (likely(ctxbi->skb && | |
1360 | !(txdesc[i].descwb.flags & TXWBFLAG_OWN))) { | |
1361 | ||
1362 | tx_dbg(jme, "txclean: %d+%d@%lu\n", | |
49d70c48 | 1363 | i, ctxbi->nr_desc, jiffies); |
95252236 GFT |
1364 | |
1365 | err = txdesc[i].descwb.flags & TXWBFLAG_ALLERR; | |
1366 | ||
1367 | for (j = 1 ; j < ctxbi->nr_desc ; ++j) { | |
1368 | ttxbi = txbi + ((i + j) & (mask)); | |
1369 | txdesc[(i + j) & (mask)].dw[0] = 0; | |
1370 | ||
1371 | pci_unmap_page(jme->pdev, | |
1372 | ttxbi->mapping, | |
1373 | ttxbi->len, | |
1374 | PCI_DMA_TODEVICE); | |
1375 | ||
1376 | ttxbi->mapping = 0; | |
1377 | ttxbi->len = 0; | |
1378 | } | |
1379 | ||
1380 | dev_kfree_skb(ctxbi->skb); | |
1381 | ||
1382 | cnt += ctxbi->nr_desc; | |
1383 | ||
1384 | if (unlikely(err)) { | |
1385 | ++(NET_STAT(jme).tx_carrier_errors); | |
1386 | } else { | |
1387 | ++(NET_STAT(jme).tx_packets); | |
1388 | NET_STAT(jme).tx_bytes += ctxbi->len; | |
1389 | } | |
1390 | ||
1391 | ctxbi->skb = NULL; | |
1392 | ctxbi->len = 0; | |
1393 | ctxbi->start_xmit = 0; | |
1394 | ||
1395 | } else { | |
1396 | break; | |
1397 | } | |
1398 | ||
1399 | i = (i + ctxbi->nr_desc) & mask; | |
1400 | ||
1401 | ctxbi->nr_desc = 0; | |
1402 | } | |
1403 | ||
49d70c48 | 1404 | tx_dbg(jme, "txclean: done %d@%lu\n", i, jiffies); |
95252236 GFT |
1405 | atomic_set(&txring->next_to_clean, i); |
1406 | atomic_add(cnt, &txring->nr_free); | |
1407 | ||
1408 | jme_wake_queue_if_stopped(jme); | |
1409 | ||
1410 | out: | |
1411 | atomic_inc(&jme->tx_cleaning); | |
1412 | } | |
1413 | ||
1414 | static void | |
1415 | jme_intr_msi(struct jme_adapter *jme, u32 intrstat) | |
1416 | { | |
1417 | /* | |
1418 | * Disable interrupt | |
1419 | */ | |
1420 | jwrite32f(jme, JME_IENC, INTR_ENABLE); | |
1421 | ||
1422 | if (intrstat & (INTR_LINKCH | INTR_SWINTR)) { | |
1423 | /* | |
1424 | * Link change event is critical | |
1425 | * all other events are ignored | |
1426 | */ | |
1427 | jwrite32(jme, JME_IEVE, intrstat); | |
1428 | tasklet_schedule(&jme->linkch_task); | |
1429 | goto out_reenable; | |
1430 | } | |
1431 | ||
1432 | if (intrstat & INTR_TMINTR) { | |
1433 | jwrite32(jme, JME_IEVE, INTR_TMINTR); | |
1434 | tasklet_schedule(&jme->pcc_task); | |
1435 | } | |
1436 | ||
1437 | if (intrstat & (INTR_PCCTXTO | INTR_PCCTX)) { | |
1438 | jwrite32(jme, JME_IEVE, INTR_PCCTXTO | INTR_PCCTX | INTR_TX0); | |
1439 | tasklet_schedule(&jme->txclean_task); | |
1440 | } | |
1441 | ||
1442 | if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { | |
1443 | jwrite32(jme, JME_IEVE, (intrstat & (INTR_PCCRX0TO | | |
1444 | INTR_PCCRX0 | | |
1445 | INTR_RX0EMP)) | | |
1446 | INTR_RX0); | |
1447 | } | |
1448 | ||
1449 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
1450 | if (intrstat & INTR_RX0EMP) | |
1451 | atomic_inc(&jme->rx_empty); | |
1452 | ||
1453 | if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { | |
1454 | if (likely(JME_RX_SCHEDULE_PREP(jme))) { | |
1455 | jme_polling_mode(jme); | |
1456 | JME_RX_SCHEDULE(jme); | |
1457 | } | |
1458 | } | |
1459 | } else { | |
1460 | if (intrstat & INTR_RX0EMP) { | |
1461 | atomic_inc(&jme->rx_empty); | |
1462 | tasklet_hi_schedule(&jme->rxempty_task); | |
1463 | } else if (intrstat & (INTR_PCCRX0TO | INTR_PCCRX0)) { | |
1464 | tasklet_hi_schedule(&jme->rxclean_task); | |
1465 | } | |
1466 | } | |
1467 | ||
1468 | out_reenable: | |
1469 | /* | |
1470 | * Re-enable interrupt | |
1471 | */ | |
1472 | jwrite32f(jme, JME_IENS, INTR_ENABLE); | |
1473 | } | |
1474 | ||
1475 | static irqreturn_t | |
1476 | jme_intr(int irq, void *dev_id) | |
1477 | { | |
1478 | struct net_device *netdev = dev_id; | |
1479 | struct jme_adapter *jme = netdev_priv(netdev); | |
1480 | u32 intrstat; | |
1481 | ||
1482 | intrstat = jread32(jme, JME_IEVE); | |
1483 | ||
1484 | /* | |
1485 | * Check if it's really an interrupt for us | |
1486 | */ | |
576b5223 | 1487 | if (unlikely((intrstat & INTR_ENABLE) == 0)) |
95252236 GFT |
1488 | return IRQ_NONE; |
1489 | ||
1490 | /* | |
1491 | * Check if the device still exist | |
1492 | */ | |
1493 | if (unlikely(intrstat == ~((typeof(intrstat))0))) | |
1494 | return IRQ_NONE; | |
1495 | ||
1496 | jme_intr_msi(jme, intrstat); | |
1497 | ||
1498 | return IRQ_HANDLED; | |
1499 | } | |
1500 | ||
1501 | static irqreturn_t | |
1502 | jme_msi(int irq, void *dev_id) | |
1503 | { | |
1504 | struct net_device *netdev = dev_id; | |
1505 | struct jme_adapter *jme = netdev_priv(netdev); | |
1506 | u32 intrstat; | |
1507 | ||
d1dfa1d1 | 1508 | intrstat = jread32(jme, JME_IEVE); |
95252236 GFT |
1509 | |
1510 | jme_intr_msi(jme, intrstat); | |
1511 | ||
1512 | return IRQ_HANDLED; | |
1513 | } | |
1514 | ||
1515 | static void | |
1516 | jme_reset_link(struct jme_adapter *jme) | |
1517 | { | |
1518 | jwrite32(jme, JME_TMCSR, TMCSR_SWIT); | |
1519 | } | |
1520 | ||
1521 | static void | |
1522 | jme_restart_an(struct jme_adapter *jme) | |
1523 | { | |
1524 | u32 bmcr; | |
1525 | ||
1526 | spin_lock_bh(&jme->phy_lock); | |
1527 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); | |
1528 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
1529 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr); | |
1530 | spin_unlock_bh(&jme->phy_lock); | |
1531 | } | |
1532 | ||
1533 | static int | |
1534 | jme_request_irq(struct jme_adapter *jme) | |
1535 | { | |
1536 | int rc; | |
1537 | struct net_device *netdev = jme->dev; | |
1538 | irq_handler_t handler = jme_intr; | |
1539 | int irq_flags = IRQF_SHARED; | |
1540 | ||
1541 | if (!pci_enable_msi(jme->pdev)) { | |
1542 | set_bit(JME_FLAG_MSI, &jme->flags); | |
1543 | handler = jme_msi; | |
1544 | irq_flags = 0; | |
1545 | } | |
1546 | ||
1547 | rc = request_irq(jme->pdev->irq, handler, irq_flags, netdev->name, | |
1548 | netdev); | |
1549 | if (rc) { | |
49d70c48 JP |
1550 | netdev_err(netdev, |
1551 | "Unable to request %s interrupt (return: %d)\n", | |
1552 | test_bit(JME_FLAG_MSI, &jme->flags) ? "MSI" : "INTx", | |
1553 | rc); | |
95252236 GFT |
1554 | |
1555 | if (test_bit(JME_FLAG_MSI, &jme->flags)) { | |
1556 | pci_disable_msi(jme->pdev); | |
1557 | clear_bit(JME_FLAG_MSI, &jme->flags); | |
1558 | } | |
1559 | } else { | |
1560 | netdev->irq = jme->pdev->irq; | |
1561 | } | |
1562 | ||
1563 | return rc; | |
1564 | } | |
1565 | ||
1566 | static void | |
1567 | jme_free_irq(struct jme_adapter *jme) | |
1568 | { | |
1569 | free_irq(jme->pdev->irq, jme->dev); | |
1570 | if (test_bit(JME_FLAG_MSI, &jme->flags)) { | |
1571 | pci_disable_msi(jme->pdev); | |
1572 | clear_bit(JME_FLAG_MSI, &jme->flags); | |
1573 | jme->dev->irq = jme->pdev->irq; | |
1574 | } | |
1575 | } | |
1576 | ||
c8a8684d GFT |
1577 | static inline void |
1578 | jme_phy_on(struct jme_adapter *jme) | |
1579 | { | |
1580 | u32 bmcr; | |
1581 | ||
1582 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); | |
1583 | bmcr &= ~BMCR_PDOWN; | |
1584 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr); | |
1585 | } | |
1586 | ||
95252236 GFT |
1587 | static int |
1588 | jme_open(struct net_device *netdev) | |
1589 | { | |
1590 | struct jme_adapter *jme = netdev_priv(netdev); | |
1591 | int rc; | |
1592 | ||
1593 | jme_clear_pm(jme); | |
1594 | JME_NAPI_ENABLE(jme); | |
1595 | ||
38ed0c21 | 1596 | tasklet_enable(&jme->linkch_task); |
95252236 GFT |
1597 | tasklet_enable(&jme->txclean_task); |
1598 | tasklet_hi_enable(&jme->rxclean_task); | |
1599 | tasklet_hi_enable(&jme->rxempty_task); | |
1600 | ||
1601 | rc = jme_request_irq(jme); | |
1602 | if (rc) | |
1603 | goto err_out; | |
1604 | ||
95252236 GFT |
1605 | jme_start_irq(jme); |
1606 | ||
c8a8684d GFT |
1607 | if (test_bit(JME_FLAG_SSET, &jme->flags)) { |
1608 | jme_phy_on(jme); | |
95252236 | 1609 | jme_set_settings(netdev, &jme->old_ecmd); |
c8a8684d | 1610 | } else { |
95252236 | 1611 | jme_reset_phy_processor(jme); |
c8a8684d | 1612 | } |
95252236 GFT |
1613 | |
1614 | jme_reset_link(jme); | |
1615 | ||
1616 | return 0; | |
1617 | ||
1618 | err_out: | |
1619 | netif_stop_queue(netdev); | |
1620 | netif_carrier_off(netdev); | |
1621 | return rc; | |
1622 | } | |
1623 | ||
724f8805 | 1624 | #ifdef CONFIG_PM |
95252236 GFT |
1625 | static void |
1626 | jme_set_100m_half(struct jme_adapter *jme) | |
1627 | { | |
1628 | u32 bmcr, tmp; | |
1629 | ||
1630 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); | |
1631 | tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 | | |
1632 | BMCR_SPEED1000 | BMCR_FULLDPLX); | |
1633 | tmp |= BMCR_SPEED100; | |
1634 | ||
1635 | if (bmcr != tmp) | |
1636 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, tmp); | |
1637 | ||
1638 | if (jme->fpgaver) | |
1639 | jwrite32(jme, JME_GHC, GHC_SPEED_100M | GHC_LINK_POLL); | |
1640 | else | |
1641 | jwrite32(jme, JME_GHC, GHC_SPEED_100M); | |
1642 | } | |
1643 | ||
1644 | #define JME_WAIT_LINK_TIME 2000 /* 2000ms */ | |
1645 | static void | |
1646 | jme_wait_link(struct jme_adapter *jme) | |
1647 | { | |
1648 | u32 phylink, to = JME_WAIT_LINK_TIME; | |
1649 | ||
1650 | mdelay(1000); | |
1651 | phylink = jme_linkstat_from_phy(jme); | |
1652 | while (!(phylink & PHY_LINK_UP) && (to -= 10) > 0) { | |
1653 | mdelay(10); | |
1654 | phylink = jme_linkstat_from_phy(jme); | |
1655 | } | |
1656 | } | |
724f8805 | 1657 | #endif |
95252236 GFT |
1658 | |
1659 | static inline void | |
1660 | jme_phy_off(struct jme_adapter *jme) | |
1661 | { | |
1662 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, BMCR_PDOWN); | |
1663 | } | |
1664 | ||
1665 | static int | |
1666 | jme_close(struct net_device *netdev) | |
1667 | { | |
1668 | struct jme_adapter *jme = netdev_priv(netdev); | |
1669 | ||
1670 | netif_stop_queue(netdev); | |
1671 | netif_carrier_off(netdev); | |
1672 | ||
1673 | jme_stop_irq(jme); | |
95252236 GFT |
1674 | jme_free_irq(jme); |
1675 | ||
1676 | JME_NAPI_DISABLE(jme); | |
1677 | ||
38ed0c21 GFT |
1678 | tasklet_disable(&jme->linkch_task); |
1679 | tasklet_disable(&jme->txclean_task); | |
1680 | tasklet_disable(&jme->rxclean_task); | |
1681 | tasklet_disable(&jme->rxempty_task); | |
95252236 GFT |
1682 | |
1683 | jme_reset_ghc_speed(jme); | |
1684 | jme_disable_rx_engine(jme); | |
1685 | jme_disable_tx_engine(jme); | |
1686 | jme_reset_mac_processor(jme); | |
1687 | jme_free_rx_resources(jme); | |
1688 | jme_free_tx_resources(jme); | |
1689 | jme->phylink = 0; | |
1690 | jme_phy_off(jme); | |
1691 | ||
1692 | return 0; | |
1693 | } | |
1694 | ||
1695 | static int | |
1696 | jme_alloc_txdesc(struct jme_adapter *jme, | |
1697 | struct sk_buff *skb) | |
1698 | { | |
eacf69a1 | 1699 | struct jme_ring *txring = &(jme->txring[0]); |
95252236 GFT |
1700 | int idx, nr_alloc, mask = jme->tx_ring_mask; |
1701 | ||
1702 | idx = txring->next_to_use; | |
1703 | nr_alloc = skb_shinfo(skb)->nr_frags + 2; | |
1704 | ||
1705 | if (unlikely(atomic_read(&txring->nr_free) < nr_alloc)) | |
1706 | return -1; | |
1707 | ||
1708 | atomic_sub(nr_alloc, &txring->nr_free); | |
1709 | ||
1710 | txring->next_to_use = (txring->next_to_use + nr_alloc) & mask; | |
1711 | ||
1712 | return idx; | |
1713 | } | |
1714 | ||
1715 | static void | |
1716 | jme_fill_tx_map(struct pci_dev *pdev, | |
1717 | struct txdesc *txdesc, | |
1718 | struct jme_buffer_info *txbi, | |
1719 | struct page *page, | |
1720 | u32 page_offset, | |
1721 | u32 len, | |
1722 | u8 hidma) | |
1723 | { | |
1724 | dma_addr_t dmaaddr; | |
1725 | ||
1726 | dmaaddr = pci_map_page(pdev, | |
1727 | page, | |
1728 | page_offset, | |
1729 | len, | |
1730 | PCI_DMA_TODEVICE); | |
1731 | ||
1732 | pci_dma_sync_single_for_device(pdev, | |
1733 | dmaaddr, | |
1734 | len, | |
1735 | PCI_DMA_TODEVICE); | |
1736 | ||
1737 | txdesc->dw[0] = 0; | |
1738 | txdesc->dw[1] = 0; | |
1739 | txdesc->desc2.flags = TXFLAG_OWN; | |
1740 | txdesc->desc2.flags |= (hidma) ? TXFLAG_64BIT : 0; | |
1741 | txdesc->desc2.datalen = cpu_to_le16(len); | |
1742 | txdesc->desc2.bufaddrh = cpu_to_le32((__u64)dmaaddr >> 32); | |
1743 | txdesc->desc2.bufaddrl = cpu_to_le32( | |
1744 | (__u64)dmaaddr & 0xFFFFFFFFUL); | |
1745 | ||
1746 | txbi->mapping = dmaaddr; | |
1747 | txbi->len = len; | |
1748 | } | |
1749 | ||
1750 | static void | |
1751 | jme_map_tx_skb(struct jme_adapter *jme, struct sk_buff *skb, int idx) | |
1752 | { | |
eacf69a1 | 1753 | struct jme_ring *txring = &(jme->txring[0]); |
95252236 GFT |
1754 | struct txdesc *txdesc = txring->desc, *ctxdesc; |
1755 | struct jme_buffer_info *txbi = txring->bufinf, *ctxbi; | |
1756 | u8 hidma = jme->dev->features & NETIF_F_HIGHDMA; | |
1757 | int i, nr_frags = skb_shinfo(skb)->nr_frags; | |
1758 | int mask = jme->tx_ring_mask; | |
1759 | struct skb_frag_struct *frag; | |
1760 | u32 len; | |
1761 | ||
1762 | for (i = 0 ; i < nr_frags ; ++i) { | |
1763 | frag = &skb_shinfo(skb)->frags[i]; | |
1764 | ctxdesc = txdesc + ((idx + i + 2) & (mask)); | |
1765 | ctxbi = txbi + ((idx + i + 2) & (mask)); | |
1766 | ||
1767 | jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, frag->page, | |
1768 | frag->page_offset, frag->size, hidma); | |
1769 | } | |
1770 | ||
1771 | len = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len; | |
1772 | ctxdesc = txdesc + ((idx + 1) & (mask)); | |
1773 | ctxbi = txbi + ((idx + 1) & (mask)); | |
1774 | jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, virt_to_page(skb->data), | |
1775 | offset_in_page(skb->data), len, hidma); | |
1776 | ||
1777 | } | |
1778 | ||
1779 | static int | |
1780 | jme_expand_header(struct jme_adapter *jme, struct sk_buff *skb) | |
1781 | { | |
1782 | if (unlikely(skb_shinfo(skb)->gso_size && | |
1783 | skb_header_cloned(skb) && | |
1784 | pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) { | |
1785 | dev_kfree_skb(skb); | |
1786 | return -1; | |
1787 | } | |
1788 | ||
1789 | return 0; | |
1790 | } | |
1791 | ||
1792 | static int | |
31c221c4 | 1793 | jme_tx_tso(struct sk_buff *skb, __le16 *mss, u8 *flags) |
95252236 | 1794 | { |
31c221c4 | 1795 | *mss = cpu_to_le16(skb_shinfo(skb)->gso_size << TXDESC_MSS_SHIFT); |
95252236 GFT |
1796 | if (*mss) { |
1797 | *flags |= TXFLAG_LSEN; | |
1798 | ||
1799 | if (skb->protocol == htons(ETH_P_IP)) { | |
1800 | struct iphdr *iph = ip_hdr(skb); | |
1801 | ||
1802 | iph->check = 0; | |
1803 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
1804 | iph->daddr, 0, | |
1805 | IPPROTO_TCP, | |
1806 | 0); | |
1807 | } else { | |
1808 | struct ipv6hdr *ip6h = ipv6_hdr(skb); | |
1809 | ||
1810 | tcp_hdr(skb)->check = ~csum_ipv6_magic(&ip6h->saddr, | |
1811 | &ip6h->daddr, 0, | |
1812 | IPPROTO_TCP, | |
1813 | 0); | |
1814 | } | |
1815 | ||
1816 | return 0; | |
1817 | } | |
1818 | ||
1819 | return 1; | |
1820 | } | |
1821 | ||
1822 | static void | |
1823 | jme_tx_csum(struct jme_adapter *jme, struct sk_buff *skb, u8 *flags) | |
1824 | { | |
1825 | if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
1826 | u8 ip_proto; | |
1827 | ||
1828 | switch (skb->protocol) { | |
1829 | case htons(ETH_P_IP): | |
1830 | ip_proto = ip_hdr(skb)->protocol; | |
1831 | break; | |
1832 | case htons(ETH_P_IPV6): | |
1833 | ip_proto = ipv6_hdr(skb)->nexthdr; | |
1834 | break; | |
1835 | default: | |
1836 | ip_proto = 0; | |
1837 | break; | |
1838 | } | |
1839 | ||
1840 | switch (ip_proto) { | |
1841 | case IPPROTO_TCP: | |
1842 | *flags |= TXFLAG_TCPCS; | |
1843 | break; | |
1844 | case IPPROTO_UDP: | |
1845 | *flags |= TXFLAG_UDPCS; | |
1846 | break; | |
1847 | default: | |
49d70c48 | 1848 | netif_err(jme, tx_err, jme->dev, "Error upper layer protocol\n"); |
95252236 GFT |
1849 | break; |
1850 | } | |
1851 | } | |
1852 | } | |
1853 | ||
1854 | static inline void | |
31c221c4 | 1855 | jme_tx_vlan(struct sk_buff *skb, __le16 *vlan, u8 *flags) |
95252236 GFT |
1856 | { |
1857 | if (vlan_tx_tag_present(skb)) { | |
1858 | *flags |= TXFLAG_TAGON; | |
31c221c4 | 1859 | *vlan = cpu_to_le16(vlan_tx_tag_get(skb)); |
95252236 GFT |
1860 | } |
1861 | } | |
1862 | ||
1863 | static int | |
7f7fd2da | 1864 | jme_fill_tx_desc(struct jme_adapter *jme, struct sk_buff *skb, int idx) |
95252236 | 1865 | { |
eacf69a1 | 1866 | struct jme_ring *txring = &(jme->txring[0]); |
95252236 GFT |
1867 | struct txdesc *txdesc; |
1868 | struct jme_buffer_info *txbi; | |
1869 | u8 flags; | |
1870 | ||
1871 | txdesc = (struct txdesc *)txring->desc + idx; | |
1872 | txbi = txring->bufinf + idx; | |
1873 | ||
1874 | txdesc->dw[0] = 0; | |
1875 | txdesc->dw[1] = 0; | |
1876 | txdesc->dw[2] = 0; | |
1877 | txdesc->dw[3] = 0; | |
1878 | txdesc->desc1.pktsize = cpu_to_le16(skb->len); | |
1879 | /* | |
1880 | * Set OWN bit at final. | |
1881 | * When kernel transmit faster than NIC. | |
1882 | * And NIC trying to send this descriptor before we tell | |
1883 | * it to start sending this TX queue. | |
1884 | * Other fields are already filled correctly. | |
1885 | */ | |
1886 | wmb(); | |
1887 | flags = TXFLAG_OWN | TXFLAG_INT; | |
1888 | /* | |
1889 | * Set checksum flags while not tso | |
1890 | */ | |
1891 | if (jme_tx_tso(skb, &txdesc->desc1.mss, &flags)) | |
1892 | jme_tx_csum(jme, skb, &flags); | |
1893 | jme_tx_vlan(skb, &txdesc->desc1.vlan, &flags); | |
7f7fd2da | 1894 | jme_map_tx_skb(jme, skb, idx); |
95252236 GFT |
1895 | txdesc->desc1.flags = flags; |
1896 | /* | |
1897 | * Set tx buffer info after telling NIC to send | |
1898 | * For better tx_clean timing | |
1899 | */ | |
1900 | wmb(); | |
1901 | txbi->nr_desc = skb_shinfo(skb)->nr_frags + 2; | |
1902 | txbi->skb = skb; | |
1903 | txbi->len = skb->len; | |
1904 | txbi->start_xmit = jiffies; | |
1905 | if (!txbi->start_xmit) | |
1906 | txbi->start_xmit = (0UL-1); | |
1907 | ||
1908 | return 0; | |
1909 | } | |
1910 | ||
1911 | static void | |
1912 | jme_stop_queue_if_full(struct jme_adapter *jme) | |
1913 | { | |
eacf69a1 | 1914 | struct jme_ring *txring = &(jme->txring[0]); |
95252236 GFT |
1915 | struct jme_buffer_info *txbi = txring->bufinf; |
1916 | int idx = atomic_read(&txring->next_to_clean); | |
1917 | ||
1918 | txbi += idx; | |
1919 | ||
1920 | smp_wmb(); | |
1921 | if (unlikely(atomic_read(&txring->nr_free) < (MAX_SKB_FRAGS+2))) { | |
1922 | netif_stop_queue(jme->dev); | |
49d70c48 | 1923 | netif_info(jme, tx_queued, jme->dev, "TX Queue Paused\n"); |
95252236 GFT |
1924 | smp_wmb(); |
1925 | if (atomic_read(&txring->nr_free) | |
1926 | >= (jme->tx_wake_threshold)) { | |
1927 | netif_wake_queue(jme->dev); | |
49d70c48 | 1928 | netif_info(jme, tx_queued, jme->dev, "TX Queue Fast Waked\n"); |
95252236 GFT |
1929 | } |
1930 | } | |
1931 | ||
1932 | if (unlikely(txbi->start_xmit && | |
1933 | (jiffies - txbi->start_xmit) >= TX_TIMEOUT && | |
1934 | txbi->skb)) { | |
1935 | netif_stop_queue(jme->dev); | |
49d70c48 JP |
1936 | netif_info(jme, tx_queued, jme->dev, |
1937 | "TX Queue Stopped %d@%lu\n", idx, jiffies); | |
95252236 GFT |
1938 | } |
1939 | } | |
1940 | ||
1941 | /* | |
1942 | * This function is already protected by netif_tx_lock() | |
1943 | */ | |
1944 | ||
61357325 | 1945 | static netdev_tx_t |
95252236 GFT |
1946 | jme_start_xmit(struct sk_buff *skb, struct net_device *netdev) |
1947 | { | |
1948 | struct jme_adapter *jme = netdev_priv(netdev); | |
1949 | int idx; | |
1950 | ||
1951 | if (unlikely(jme_expand_header(jme, skb))) { | |
1952 | ++(NET_STAT(jme).tx_dropped); | |
1953 | return NETDEV_TX_OK; | |
1954 | } | |
1955 | ||
1956 | idx = jme_alloc_txdesc(jme, skb); | |
1957 | ||
1958 | if (unlikely(idx < 0)) { | |
1959 | netif_stop_queue(netdev); | |
49d70c48 JP |
1960 | netif_err(jme, tx_err, jme->dev, |
1961 | "BUG! Tx ring full when queue awake!\n"); | |
95252236 GFT |
1962 | |
1963 | return NETDEV_TX_BUSY; | |
1964 | } | |
1965 | ||
7f7fd2da | 1966 | jme_fill_tx_desc(jme, skb, idx); |
95252236 GFT |
1967 | |
1968 | jwrite32(jme, JME_TXCS, jme->reg_txcs | | |
1969 | TXCS_SELECT_QUEUE0 | | |
1970 | TXCS_QUEUE0S | | |
1971 | TXCS_ENABLE); | |
95252236 | 1972 | |
49d70c48 JP |
1973 | tx_dbg(jme, "xmit: %d+%d@%lu\n", |
1974 | idx, skb_shinfo(skb)->nr_frags + 2, jiffies); | |
95252236 GFT |
1975 | jme_stop_queue_if_full(jme); |
1976 | ||
1977 | return NETDEV_TX_OK; | |
1978 | } | |
1979 | ||
1980 | static int | |
1981 | jme_set_macaddr(struct net_device *netdev, void *p) | |
1982 | { | |
1983 | struct jme_adapter *jme = netdev_priv(netdev); | |
1984 | struct sockaddr *addr = p; | |
1985 | u32 val; | |
1986 | ||
1987 | if (netif_running(netdev)) | |
1988 | return -EBUSY; | |
1989 | ||
1990 | spin_lock_bh(&jme->macaddr_lock); | |
1991 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
1992 | ||
1993 | val = (addr->sa_data[3] & 0xff) << 24 | | |
1994 | (addr->sa_data[2] & 0xff) << 16 | | |
1995 | (addr->sa_data[1] & 0xff) << 8 | | |
1996 | (addr->sa_data[0] & 0xff); | |
1997 | jwrite32(jme, JME_RXUMA_LO, val); | |
1998 | val = (addr->sa_data[5] & 0xff) << 8 | | |
1999 | (addr->sa_data[4] & 0xff); | |
2000 | jwrite32(jme, JME_RXUMA_HI, val); | |
2001 | spin_unlock_bh(&jme->macaddr_lock); | |
2002 | ||
2003 | return 0; | |
2004 | } | |
2005 | ||
2006 | static void | |
2007 | jme_set_multi(struct net_device *netdev) | |
2008 | { | |
2009 | struct jme_adapter *jme = netdev_priv(netdev); | |
2010 | u32 mc_hash[2] = {}; | |
95252236 GFT |
2011 | |
2012 | spin_lock_bh(&jme->rxmcs_lock); | |
2013 | ||
2014 | jme->reg_rxmcs |= RXMCS_BRDFRAME | RXMCS_UNIFRAME; | |
2015 | ||
2016 | if (netdev->flags & IFF_PROMISC) { | |
2017 | jme->reg_rxmcs |= RXMCS_ALLFRAME; | |
2018 | } else if (netdev->flags & IFF_ALLMULTI) { | |
2019 | jme->reg_rxmcs |= RXMCS_ALLMULFRAME; | |
2020 | } else if (netdev->flags & IFF_MULTICAST) { | |
22bedad3 | 2021 | struct netdev_hw_addr *ha; |
95252236 GFT |
2022 | int bit_nr; |
2023 | ||
2024 | jme->reg_rxmcs |= RXMCS_MULFRAME | RXMCS_MULFILTERED; | |
22bedad3 JP |
2025 | netdev_for_each_mc_addr(ha, netdev) { |
2026 | bit_nr = ether_crc(ETH_ALEN, ha->addr) & 0x3F; | |
95252236 GFT |
2027 | mc_hash[bit_nr >> 5] |= 1 << (bit_nr & 0x1F); |
2028 | } | |
2029 | ||
2030 | jwrite32(jme, JME_RXMCHT_LO, mc_hash[0]); | |
2031 | jwrite32(jme, JME_RXMCHT_HI, mc_hash[1]); | |
2032 | } | |
2033 | ||
2034 | wmb(); | |
2035 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); | |
2036 | ||
2037 | spin_unlock_bh(&jme->rxmcs_lock); | |
2038 | } | |
2039 | ||
2040 | static int | |
2041 | jme_change_mtu(struct net_device *netdev, int new_mtu) | |
2042 | { | |
2043 | struct jme_adapter *jme = netdev_priv(netdev); | |
2044 | ||
2045 | if (new_mtu == jme->old_mtu) | |
2046 | return 0; | |
2047 | ||
2048 | if (((new_mtu + ETH_HLEN) > MAX_ETHERNET_JUMBO_PACKET_SIZE) || | |
2049 | ((new_mtu) < IPV6_MIN_MTU)) | |
2050 | return -EINVAL; | |
2051 | ||
2052 | if (new_mtu > 4000) { | |
2053 | jme->reg_rxcs &= ~RXCS_FIFOTHNP; | |
2054 | jme->reg_rxcs |= RXCS_FIFOTHNP_64QW; | |
2055 | jme_restart_rx_engine(jme); | |
2056 | } else { | |
2057 | jme->reg_rxcs &= ~RXCS_FIFOTHNP; | |
2058 | jme->reg_rxcs |= RXCS_FIFOTHNP_128QW; | |
2059 | jme_restart_rx_engine(jme); | |
2060 | } | |
2061 | ||
2062 | if (new_mtu > 1900) { | |
2063 | netdev->features &= ~(NETIF_F_HW_CSUM | | |
2064 | NETIF_F_TSO | | |
2065 | NETIF_F_TSO6); | |
2066 | } else { | |
2067 | if (test_bit(JME_FLAG_TXCSUM, &jme->flags)) | |
2068 | netdev->features |= NETIF_F_HW_CSUM; | |
2069 | if (test_bit(JME_FLAG_TSO, &jme->flags)) | |
2070 | netdev->features |= NETIF_F_TSO | NETIF_F_TSO6; | |
2071 | } | |
2072 | ||
2073 | netdev->mtu = new_mtu; | |
2074 | jme_reset_link(jme); | |
2075 | ||
2076 | return 0; | |
2077 | } | |
2078 | ||
2079 | static void | |
2080 | jme_tx_timeout(struct net_device *netdev) | |
2081 | { | |
2082 | struct jme_adapter *jme = netdev_priv(netdev); | |
2083 | ||
2084 | jme->phylink = 0; | |
2085 | jme_reset_phy_processor(jme); | |
2086 | if (test_bit(JME_FLAG_SSET, &jme->flags)) | |
2087 | jme_set_settings(netdev, &jme->old_ecmd); | |
2088 | ||
2089 | /* | |
2090 | * Force to Reset the link again | |
2091 | */ | |
2092 | jme_reset_link(jme); | |
2093 | } | |
2094 | ||
bf5e5360 GFT |
2095 | static inline void jme_pause_rx(struct jme_adapter *jme) |
2096 | { | |
2097 | atomic_dec(&jme->link_changing); | |
2098 | ||
2099 | jme_set_rx_pcc(jme, PCC_OFF); | |
2100 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2101 | JME_NAPI_DISABLE(jme); | |
2102 | } else { | |
2103 | tasklet_disable(&jme->rxclean_task); | |
2104 | tasklet_disable(&jme->rxempty_task); | |
2105 | } | |
2106 | } | |
2107 | ||
2108 | static inline void jme_resume_rx(struct jme_adapter *jme) | |
2109 | { | |
2110 | struct dynpcc_info *dpi = &(jme->dpi); | |
2111 | ||
2112 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2113 | JME_NAPI_ENABLE(jme); | |
2114 | } else { | |
2115 | tasklet_hi_enable(&jme->rxclean_task); | |
2116 | tasklet_hi_enable(&jme->rxempty_task); | |
2117 | } | |
2118 | dpi->cur = PCC_P1; | |
2119 | dpi->attempt = PCC_P1; | |
2120 | dpi->cnt = 0; | |
2121 | jme_set_rx_pcc(jme, PCC_P1); | |
2122 | ||
2123 | atomic_inc(&jme->link_changing); | |
2124 | } | |
2125 | ||
95252236 GFT |
2126 | static void |
2127 | jme_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp) | |
2128 | { | |
2129 | struct jme_adapter *jme = netdev_priv(netdev); | |
2130 | ||
bf5e5360 | 2131 | jme_pause_rx(jme); |
95252236 | 2132 | jme->vlgrp = grp; |
bf5e5360 | 2133 | jme_resume_rx(jme); |
95252236 GFT |
2134 | } |
2135 | ||
2136 | static void | |
2137 | jme_get_drvinfo(struct net_device *netdev, | |
2138 | struct ethtool_drvinfo *info) | |
2139 | { | |
2140 | struct jme_adapter *jme = netdev_priv(netdev); | |
2141 | ||
2142 | strcpy(info->driver, DRV_NAME); | |
2143 | strcpy(info->version, DRV_VERSION); | |
2144 | strcpy(info->bus_info, pci_name(jme->pdev)); | |
2145 | } | |
2146 | ||
2147 | static int | |
2148 | jme_get_regs_len(struct net_device *netdev) | |
2149 | { | |
2150 | return JME_REG_LEN; | |
2151 | } | |
2152 | ||
2153 | static void | |
2154 | mmapio_memcpy(struct jme_adapter *jme, u32 *p, u32 reg, int len) | |
2155 | { | |
2156 | int i; | |
2157 | ||
2158 | for (i = 0 ; i < len ; i += 4) | |
2159 | p[i >> 2] = jread32(jme, reg + i); | |
2160 | } | |
2161 | ||
2162 | static void | |
2163 | mdio_memcpy(struct jme_adapter *jme, u32 *p, int reg_nr) | |
2164 | { | |
2165 | int i; | |
2166 | u16 *p16 = (u16 *)p; | |
2167 | ||
2168 | for (i = 0 ; i < reg_nr ; ++i) | |
2169 | p16[i] = jme_mdio_read(jme->dev, jme->mii_if.phy_id, i); | |
2170 | } | |
2171 | ||
2172 | static void | |
2173 | jme_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) | |
2174 | { | |
2175 | struct jme_adapter *jme = netdev_priv(netdev); | |
2176 | u32 *p32 = (u32 *)p; | |
2177 | ||
2178 | memset(p, 0xFF, JME_REG_LEN); | |
2179 | ||
2180 | regs->version = 1; | |
2181 | mmapio_memcpy(jme, p32, JME_MAC, JME_MAC_LEN); | |
2182 | ||
2183 | p32 += 0x100 >> 2; | |
2184 | mmapio_memcpy(jme, p32, JME_PHY, JME_PHY_LEN); | |
2185 | ||
2186 | p32 += 0x100 >> 2; | |
2187 | mmapio_memcpy(jme, p32, JME_MISC, JME_MISC_LEN); | |
2188 | ||
2189 | p32 += 0x100 >> 2; | |
2190 | mmapio_memcpy(jme, p32, JME_RSS, JME_RSS_LEN); | |
2191 | ||
2192 | p32 += 0x100 >> 2; | |
2193 | mdio_memcpy(jme, p32, JME_PHY_REG_NR); | |
2194 | } | |
2195 | ||
2196 | static int | |
2197 | jme_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) | |
2198 | { | |
2199 | struct jme_adapter *jme = netdev_priv(netdev); | |
2200 | ||
2201 | ecmd->tx_coalesce_usecs = PCC_TX_TO; | |
2202 | ecmd->tx_max_coalesced_frames = PCC_TX_CNT; | |
2203 | ||
2204 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2205 | ecmd->use_adaptive_rx_coalesce = false; | |
2206 | ecmd->rx_coalesce_usecs = 0; | |
2207 | ecmd->rx_max_coalesced_frames = 0; | |
2208 | return 0; | |
2209 | } | |
2210 | ||
2211 | ecmd->use_adaptive_rx_coalesce = true; | |
2212 | ||
2213 | switch (jme->dpi.cur) { | |
2214 | case PCC_P1: | |
2215 | ecmd->rx_coalesce_usecs = PCC_P1_TO; | |
2216 | ecmd->rx_max_coalesced_frames = PCC_P1_CNT; | |
2217 | break; | |
2218 | case PCC_P2: | |
2219 | ecmd->rx_coalesce_usecs = PCC_P2_TO; | |
2220 | ecmd->rx_max_coalesced_frames = PCC_P2_CNT; | |
2221 | break; | |
2222 | case PCC_P3: | |
2223 | ecmd->rx_coalesce_usecs = PCC_P3_TO; | |
2224 | ecmd->rx_max_coalesced_frames = PCC_P3_CNT; | |
2225 | break; | |
2226 | default: | |
2227 | break; | |
2228 | } | |
2229 | ||
2230 | return 0; | |
2231 | } | |
2232 | ||
2233 | static int | |
2234 | jme_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) | |
2235 | { | |
2236 | struct jme_adapter *jme = netdev_priv(netdev); | |
2237 | struct dynpcc_info *dpi = &(jme->dpi); | |
2238 | ||
2239 | if (netif_running(netdev)) | |
2240 | return -EBUSY; | |
2241 | ||
8e95a202 JP |
2242 | if (ecmd->use_adaptive_rx_coalesce && |
2243 | test_bit(JME_FLAG_POLL, &jme->flags)) { | |
95252236 GFT |
2244 | clear_bit(JME_FLAG_POLL, &jme->flags); |
2245 | jme->jme_rx = netif_rx; | |
2246 | jme->jme_vlan_rx = vlan_hwaccel_rx; | |
2247 | dpi->cur = PCC_P1; | |
2248 | dpi->attempt = PCC_P1; | |
2249 | dpi->cnt = 0; | |
2250 | jme_set_rx_pcc(jme, PCC_P1); | |
2251 | jme_interrupt_mode(jme); | |
8e95a202 JP |
2252 | } else if (!(ecmd->use_adaptive_rx_coalesce) && |
2253 | !(test_bit(JME_FLAG_POLL, &jme->flags))) { | |
95252236 GFT |
2254 | set_bit(JME_FLAG_POLL, &jme->flags); |
2255 | jme->jme_rx = netif_receive_skb; | |
2256 | jme->jme_vlan_rx = vlan_hwaccel_receive_skb; | |
2257 | jme_interrupt_mode(jme); | |
2258 | } | |
2259 | ||
2260 | return 0; | |
2261 | } | |
2262 | ||
2263 | static void | |
2264 | jme_get_pauseparam(struct net_device *netdev, | |
2265 | struct ethtool_pauseparam *ecmd) | |
2266 | { | |
2267 | struct jme_adapter *jme = netdev_priv(netdev); | |
2268 | u32 val; | |
2269 | ||
2270 | ecmd->tx_pause = (jme->reg_txpfc & TXPFC_PF_EN) != 0; | |
2271 | ecmd->rx_pause = (jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0; | |
2272 | ||
2273 | spin_lock_bh(&jme->phy_lock); | |
2274 | val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); | |
2275 | spin_unlock_bh(&jme->phy_lock); | |
2276 | ||
2277 | ecmd->autoneg = | |
2278 | (val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0; | |
2279 | } | |
2280 | ||
2281 | static int | |
2282 | jme_set_pauseparam(struct net_device *netdev, | |
2283 | struct ethtool_pauseparam *ecmd) | |
2284 | { | |
2285 | struct jme_adapter *jme = netdev_priv(netdev); | |
2286 | u32 val; | |
2287 | ||
2288 | if (((jme->reg_txpfc & TXPFC_PF_EN) != 0) ^ | |
2289 | (ecmd->tx_pause != 0)) { | |
2290 | ||
2291 | if (ecmd->tx_pause) | |
2292 | jme->reg_txpfc |= TXPFC_PF_EN; | |
2293 | else | |
2294 | jme->reg_txpfc &= ~TXPFC_PF_EN; | |
2295 | ||
2296 | jwrite32(jme, JME_TXPFC, jme->reg_txpfc); | |
2297 | } | |
2298 | ||
2299 | spin_lock_bh(&jme->rxmcs_lock); | |
2300 | if (((jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0) ^ | |
2301 | (ecmd->rx_pause != 0)) { | |
2302 | ||
2303 | if (ecmd->rx_pause) | |
2304 | jme->reg_rxmcs |= RXMCS_FLOWCTRL; | |
2305 | else | |
2306 | jme->reg_rxmcs &= ~RXMCS_FLOWCTRL; | |
2307 | ||
2308 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); | |
2309 | } | |
2310 | spin_unlock_bh(&jme->rxmcs_lock); | |
2311 | ||
2312 | spin_lock_bh(&jme->phy_lock); | |
2313 | val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); | |
2314 | if (((val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0) ^ | |
2315 | (ecmd->autoneg != 0)) { | |
2316 | ||
2317 | if (ecmd->autoneg) | |
2318 | val |= (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
2319 | else | |
2320 | val &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
2321 | ||
2322 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, | |
2323 | MII_ADVERTISE, val); | |
2324 | } | |
2325 | spin_unlock_bh(&jme->phy_lock); | |
2326 | ||
2327 | return 0; | |
2328 | } | |
2329 | ||
2330 | static void | |
2331 | jme_get_wol(struct net_device *netdev, | |
2332 | struct ethtool_wolinfo *wol) | |
2333 | { | |
2334 | struct jme_adapter *jme = netdev_priv(netdev); | |
2335 | ||
2336 | wol->supported = WAKE_MAGIC | WAKE_PHY; | |
2337 | ||
2338 | wol->wolopts = 0; | |
2339 | ||
2340 | if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) | |
2341 | wol->wolopts |= WAKE_PHY; | |
2342 | ||
2343 | if (jme->reg_pmcs & PMCS_MFEN) | |
2344 | wol->wolopts |= WAKE_MAGIC; | |
2345 | ||
2346 | } | |
2347 | ||
2348 | static int | |
2349 | jme_set_wol(struct net_device *netdev, | |
2350 | struct ethtool_wolinfo *wol) | |
2351 | { | |
2352 | struct jme_adapter *jme = netdev_priv(netdev); | |
2353 | ||
2354 | if (wol->wolopts & (WAKE_MAGICSECURE | | |
2355 | WAKE_UCAST | | |
2356 | WAKE_MCAST | | |
2357 | WAKE_BCAST | | |
2358 | WAKE_ARP)) | |
2359 | return -EOPNOTSUPP; | |
2360 | ||
2361 | jme->reg_pmcs = 0; | |
2362 | ||
2363 | if (wol->wolopts & WAKE_PHY) | |
2364 | jme->reg_pmcs |= PMCS_LFEN | PMCS_LREN; | |
2365 | ||
2366 | if (wol->wolopts & WAKE_MAGIC) | |
2367 | jme->reg_pmcs |= PMCS_MFEN; | |
2368 | ||
2369 | jwrite32(jme, JME_PMCS, jme->reg_pmcs); | |
2370 | ||
2371 | return 0; | |
2372 | } | |
2373 | ||
2374 | static int | |
2375 | jme_get_settings(struct net_device *netdev, | |
2376 | struct ethtool_cmd *ecmd) | |
2377 | { | |
2378 | struct jme_adapter *jme = netdev_priv(netdev); | |
2379 | int rc; | |
2380 | ||
2381 | spin_lock_bh(&jme->phy_lock); | |
2382 | rc = mii_ethtool_gset(&(jme->mii_if), ecmd); | |
2383 | spin_unlock_bh(&jme->phy_lock); | |
2384 | return rc; | |
2385 | } | |
2386 | ||
2387 | static int | |
2388 | jme_set_settings(struct net_device *netdev, | |
2389 | struct ethtool_cmd *ecmd) | |
2390 | { | |
2391 | struct jme_adapter *jme = netdev_priv(netdev); | |
2392 | int rc, fdc = 0; | |
2393 | ||
2394 | if (ecmd->speed == SPEED_1000 && ecmd->autoneg != AUTONEG_ENABLE) | |
2395 | return -EINVAL; | |
2396 | ||
3ee94018 GFT |
2397 | /* |
2398 | * Check If user changed duplex only while force_media. | |
2399 | * Hardware would not generate link change interrupt. | |
2400 | */ | |
95252236 GFT |
2401 | if (jme->mii_if.force_media && |
2402 | ecmd->autoneg != AUTONEG_ENABLE && | |
2403 | (jme->mii_if.full_duplex != ecmd->duplex)) | |
2404 | fdc = 1; | |
2405 | ||
2406 | spin_lock_bh(&jme->phy_lock); | |
2407 | rc = mii_ethtool_sset(&(jme->mii_if), ecmd); | |
2408 | spin_unlock_bh(&jme->phy_lock); | |
2409 | ||
95252236 | 2410 | if (!rc) { |
3ee94018 GFT |
2411 | if (fdc) |
2412 | jme_reset_link(jme); | |
95252236 GFT |
2413 | set_bit(JME_FLAG_SSET, &jme->flags); |
2414 | jme->old_ecmd = *ecmd; | |
2415 | } | |
2416 | ||
2417 | return rc; | |
2418 | } | |
2419 | ||
2420 | static u32 | |
2421 | jme_get_link(struct net_device *netdev) | |
2422 | { | |
2423 | struct jme_adapter *jme = netdev_priv(netdev); | |
2424 | return jread32(jme, JME_PHY_LINK) & PHY_LINK_UP; | |
2425 | } | |
2426 | ||
2427 | static u32 | |
2428 | jme_get_msglevel(struct net_device *netdev) | |
2429 | { | |
2430 | struct jme_adapter *jme = netdev_priv(netdev); | |
2431 | return jme->msg_enable; | |
2432 | } | |
2433 | ||
2434 | static void | |
2435 | jme_set_msglevel(struct net_device *netdev, u32 value) | |
2436 | { | |
2437 | struct jme_adapter *jme = netdev_priv(netdev); | |
2438 | jme->msg_enable = value; | |
2439 | } | |
2440 | ||
2441 | static u32 | |
2442 | jme_get_rx_csum(struct net_device *netdev) | |
2443 | { | |
2444 | struct jme_adapter *jme = netdev_priv(netdev); | |
2445 | return jme->reg_rxmcs & RXMCS_CHECKSUM; | |
2446 | } | |
2447 | ||
2448 | static int | |
2449 | jme_set_rx_csum(struct net_device *netdev, u32 on) | |
2450 | { | |
2451 | struct jme_adapter *jme = netdev_priv(netdev); | |
2452 | ||
2453 | spin_lock_bh(&jme->rxmcs_lock); | |
2454 | if (on) | |
2455 | jme->reg_rxmcs |= RXMCS_CHECKSUM; | |
2456 | else | |
2457 | jme->reg_rxmcs &= ~RXMCS_CHECKSUM; | |
2458 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); | |
2459 | spin_unlock_bh(&jme->rxmcs_lock); | |
2460 | ||
2461 | return 0; | |
2462 | } | |
2463 | ||
2464 | static int | |
2465 | jme_set_tx_csum(struct net_device *netdev, u32 on) | |
2466 | { | |
2467 | struct jme_adapter *jme = netdev_priv(netdev); | |
2468 | ||
2469 | if (on) { | |
2470 | set_bit(JME_FLAG_TXCSUM, &jme->flags); | |
2471 | if (netdev->mtu <= 1900) | |
2472 | netdev->features |= NETIF_F_HW_CSUM; | |
2473 | } else { | |
2474 | clear_bit(JME_FLAG_TXCSUM, &jme->flags); | |
2475 | netdev->features &= ~NETIF_F_HW_CSUM; | |
2476 | } | |
2477 | ||
2478 | return 0; | |
2479 | } | |
2480 | ||
2481 | static int | |
2482 | jme_set_tso(struct net_device *netdev, u32 on) | |
2483 | { | |
2484 | struct jme_adapter *jme = netdev_priv(netdev); | |
2485 | ||
2486 | if (on) { | |
2487 | set_bit(JME_FLAG_TSO, &jme->flags); | |
2488 | if (netdev->mtu <= 1900) | |
2489 | netdev->features |= NETIF_F_TSO | NETIF_F_TSO6; | |
2490 | } else { | |
2491 | clear_bit(JME_FLAG_TSO, &jme->flags); | |
2492 | netdev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6); | |
2493 | } | |
2494 | ||
2495 | return 0; | |
2496 | } | |
2497 | ||
2498 | static int | |
2499 | jme_nway_reset(struct net_device *netdev) | |
2500 | { | |
2501 | struct jme_adapter *jme = netdev_priv(netdev); | |
2502 | jme_restart_an(jme); | |
2503 | return 0; | |
2504 | } | |
2505 | ||
2506 | static u8 | |
2507 | jme_smb_read(struct jme_adapter *jme, unsigned int addr) | |
2508 | { | |
2509 | u32 val; | |
2510 | int to; | |
2511 | ||
2512 | val = jread32(jme, JME_SMBCSR); | |
2513 | to = JME_SMB_BUSY_TIMEOUT; | |
2514 | while ((val & SMBCSR_BUSY) && --to) { | |
2515 | msleep(1); | |
2516 | val = jread32(jme, JME_SMBCSR); | |
2517 | } | |
2518 | if (!to) { | |
49d70c48 | 2519 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
95252236 GFT |
2520 | return 0xFF; |
2521 | } | |
2522 | ||
2523 | jwrite32(jme, JME_SMBINTF, | |
2524 | ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | | |
2525 | SMBINTF_HWRWN_READ | | |
2526 | SMBINTF_HWCMD); | |
2527 | ||
2528 | val = jread32(jme, JME_SMBINTF); | |
2529 | to = JME_SMB_BUSY_TIMEOUT; | |
2530 | while ((val & SMBINTF_HWCMD) && --to) { | |
2531 | msleep(1); | |
2532 | val = jread32(jme, JME_SMBINTF); | |
2533 | } | |
2534 | if (!to) { | |
49d70c48 | 2535 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
95252236 GFT |
2536 | return 0xFF; |
2537 | } | |
2538 | ||
2539 | return (val & SMBINTF_HWDATR) >> SMBINTF_HWDATR_SHIFT; | |
2540 | } | |
2541 | ||
2542 | static void | |
2543 | jme_smb_write(struct jme_adapter *jme, unsigned int addr, u8 data) | |
2544 | { | |
2545 | u32 val; | |
2546 | int to; | |
2547 | ||
2548 | val = jread32(jme, JME_SMBCSR); | |
2549 | to = JME_SMB_BUSY_TIMEOUT; | |
2550 | while ((val & SMBCSR_BUSY) && --to) { | |
2551 | msleep(1); | |
2552 | val = jread32(jme, JME_SMBCSR); | |
2553 | } | |
2554 | if (!to) { | |
49d70c48 | 2555 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
95252236 GFT |
2556 | return; |
2557 | } | |
2558 | ||
2559 | jwrite32(jme, JME_SMBINTF, | |
2560 | ((data << SMBINTF_HWDATW_SHIFT) & SMBINTF_HWDATW) | | |
2561 | ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | | |
2562 | SMBINTF_HWRWN_WRITE | | |
2563 | SMBINTF_HWCMD); | |
2564 | ||
2565 | val = jread32(jme, JME_SMBINTF); | |
2566 | to = JME_SMB_BUSY_TIMEOUT; | |
2567 | while ((val & SMBINTF_HWCMD) && --to) { | |
2568 | msleep(1); | |
2569 | val = jread32(jme, JME_SMBINTF); | |
2570 | } | |
2571 | if (!to) { | |
49d70c48 | 2572 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
95252236 GFT |
2573 | return; |
2574 | } | |
2575 | ||
2576 | mdelay(2); | |
2577 | } | |
2578 | ||
2579 | static int | |
2580 | jme_get_eeprom_len(struct net_device *netdev) | |
2581 | { | |
2582 | struct jme_adapter *jme = netdev_priv(netdev); | |
2583 | u32 val; | |
2584 | val = jread32(jme, JME_SMBCSR); | |
2585 | return (val & SMBCSR_EEPROMD) ? JME_SMB_LEN : 0; | |
2586 | } | |
2587 | ||
2588 | static int | |
2589 | jme_get_eeprom(struct net_device *netdev, | |
2590 | struct ethtool_eeprom *eeprom, u8 *data) | |
2591 | { | |
2592 | struct jme_adapter *jme = netdev_priv(netdev); | |
2593 | int i, offset = eeprom->offset, len = eeprom->len; | |
2594 | ||
2595 | /* | |
2596 | * ethtool will check the boundary for us | |
2597 | */ | |
2598 | eeprom->magic = JME_EEPROM_MAGIC; | |
2599 | for (i = 0 ; i < len ; ++i) | |
2600 | data[i] = jme_smb_read(jme, i + offset); | |
2601 | ||
2602 | return 0; | |
2603 | } | |
2604 | ||
2605 | static int | |
2606 | jme_set_eeprom(struct net_device *netdev, | |
2607 | struct ethtool_eeprom *eeprom, u8 *data) | |
2608 | { | |
2609 | struct jme_adapter *jme = netdev_priv(netdev); | |
2610 | int i, offset = eeprom->offset, len = eeprom->len; | |
2611 | ||
2612 | if (eeprom->magic != JME_EEPROM_MAGIC) | |
2613 | return -EINVAL; | |
2614 | ||
2615 | /* | |
2616 | * ethtool will check the boundary for us | |
2617 | */ | |
2618 | for (i = 0 ; i < len ; ++i) | |
2619 | jme_smb_write(jme, i + offset, data[i]); | |
2620 | ||
2621 | return 0; | |
2622 | } | |
2623 | ||
2624 | static const struct ethtool_ops jme_ethtool_ops = { | |
2625 | .get_drvinfo = jme_get_drvinfo, | |
2626 | .get_regs_len = jme_get_regs_len, | |
2627 | .get_regs = jme_get_regs, | |
2628 | .get_coalesce = jme_get_coalesce, | |
2629 | .set_coalesce = jme_set_coalesce, | |
2630 | .get_pauseparam = jme_get_pauseparam, | |
2631 | .set_pauseparam = jme_set_pauseparam, | |
2632 | .get_wol = jme_get_wol, | |
2633 | .set_wol = jme_set_wol, | |
2634 | .get_settings = jme_get_settings, | |
2635 | .set_settings = jme_set_settings, | |
2636 | .get_link = jme_get_link, | |
2637 | .get_msglevel = jme_get_msglevel, | |
2638 | .set_msglevel = jme_set_msglevel, | |
2639 | .get_rx_csum = jme_get_rx_csum, | |
2640 | .set_rx_csum = jme_set_rx_csum, | |
2641 | .set_tx_csum = jme_set_tx_csum, | |
2642 | .set_tso = jme_set_tso, | |
2643 | .set_sg = ethtool_op_set_sg, | |
2644 | .nway_reset = jme_nway_reset, | |
2645 | .get_eeprom_len = jme_get_eeprom_len, | |
2646 | .get_eeprom = jme_get_eeprom, | |
2647 | .set_eeprom = jme_set_eeprom, | |
2648 | }; | |
2649 | ||
2650 | static int | |
2651 | jme_pci_dma64(struct pci_dev *pdev) | |
2652 | { | |
814c01dc | 2653 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && |
e930438c YH |
2654 | !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) |
2655 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) | |
814c01dc GFT |
2656 | return 1; |
2657 | ||
2658 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && | |
e930438c YH |
2659 | !pci_set_dma_mask(pdev, DMA_BIT_MASK(40))) |
2660 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40))) | |
814c01dc GFT |
2661 | return 1; |
2662 | ||
284901a9 YH |
2663 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) |
2664 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) | |
95252236 GFT |
2665 | return 0; |
2666 | ||
2667 | return -1; | |
2668 | } | |
2669 | ||
2670 | static inline void | |
2671 | jme_phy_init(struct jme_adapter *jme) | |
2672 | { | |
2673 | u16 reg26; | |
2674 | ||
2675 | reg26 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 26); | |
2676 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 26, reg26 | 0x1000); | |
2677 | } | |
2678 | ||
2679 | static inline void | |
2680 | jme_check_hw_ver(struct jme_adapter *jme) | |
2681 | { | |
2682 | u32 chipmode; | |
2683 | ||
2684 | chipmode = jread32(jme, JME_CHIPMODE); | |
2685 | ||
2686 | jme->fpgaver = (chipmode & CM_FPGAVER_MASK) >> CM_FPGAVER_SHIFT; | |
2687 | jme->chiprev = (chipmode & CM_CHIPREV_MASK) >> CM_CHIPREV_SHIFT; | |
2688 | } | |
2689 | ||
e48714ba SH |
2690 | static const struct net_device_ops jme_netdev_ops = { |
2691 | .ndo_open = jme_open, | |
2692 | .ndo_stop = jme_close, | |
2693 | .ndo_validate_addr = eth_validate_addr, | |
2694 | .ndo_start_xmit = jme_start_xmit, | |
2695 | .ndo_set_mac_address = jme_set_macaddr, | |
2696 | .ndo_set_multicast_list = jme_set_multi, | |
2697 | .ndo_change_mtu = jme_change_mtu, | |
2698 | .ndo_tx_timeout = jme_tx_timeout, | |
2699 | .ndo_vlan_rx_register = jme_vlan_rx_register, | |
2700 | }; | |
2701 | ||
95252236 GFT |
2702 | static int __devinit |
2703 | jme_init_one(struct pci_dev *pdev, | |
2704 | const struct pci_device_id *ent) | |
2705 | { | |
2706 | int rc = 0, using_dac, i; | |
2707 | struct net_device *netdev; | |
2708 | struct jme_adapter *jme; | |
2709 | u16 bmcr, bmsr; | |
2710 | u32 apmc; | |
2711 | ||
2712 | /* | |
2713 | * set up PCI device basics | |
2714 | */ | |
2715 | rc = pci_enable_device(pdev); | |
2716 | if (rc) { | |
49d70c48 | 2717 | pr_err("Cannot enable PCI device\n"); |
95252236 GFT |
2718 | goto err_out; |
2719 | } | |
2720 | ||
2721 | using_dac = jme_pci_dma64(pdev); | |
2722 | if (using_dac < 0) { | |
49d70c48 | 2723 | pr_err("Cannot set PCI DMA Mask\n"); |
95252236 GFT |
2724 | rc = -EIO; |
2725 | goto err_out_disable_pdev; | |
2726 | } | |
2727 | ||
2728 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
49d70c48 | 2729 | pr_err("No PCI resource region found\n"); |
95252236 GFT |
2730 | rc = -ENOMEM; |
2731 | goto err_out_disable_pdev; | |
2732 | } | |
2733 | ||
2734 | rc = pci_request_regions(pdev, DRV_NAME); | |
2735 | if (rc) { | |
49d70c48 | 2736 | pr_err("Cannot obtain PCI resource region\n"); |
95252236 GFT |
2737 | goto err_out_disable_pdev; |
2738 | } | |
2739 | ||
2740 | pci_set_master(pdev); | |
2741 | ||
2742 | /* | |
2743 | * alloc and init net device | |
2744 | */ | |
2745 | netdev = alloc_etherdev(sizeof(*jme)); | |
2746 | if (!netdev) { | |
49d70c48 | 2747 | pr_err("Cannot allocate netdev structure\n"); |
95252236 GFT |
2748 | rc = -ENOMEM; |
2749 | goto err_out_release_regions; | |
2750 | } | |
e48714ba | 2751 | netdev->netdev_ops = &jme_netdev_ops; |
95252236 | 2752 | netdev->ethtool_ops = &jme_ethtool_ops; |
95252236 | 2753 | netdev->watchdog_timeo = TX_TIMEOUT; |
95252236 GFT |
2754 | netdev->features = NETIF_F_HW_CSUM | |
2755 | NETIF_F_SG | | |
2756 | NETIF_F_TSO | | |
2757 | NETIF_F_TSO6 | | |
2758 | NETIF_F_HW_VLAN_TX | | |
2759 | NETIF_F_HW_VLAN_RX; | |
2760 | if (using_dac) | |
2761 | netdev->features |= NETIF_F_HIGHDMA; | |
2762 | ||
2763 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
2764 | pci_set_drvdata(pdev, netdev); | |
2765 | ||
2766 | /* | |
2767 | * init adapter info | |
2768 | */ | |
2769 | jme = netdev_priv(netdev); | |
2770 | jme->pdev = pdev; | |
2771 | jme->dev = netdev; | |
2772 | jme->jme_rx = netif_rx; | |
2773 | jme->jme_vlan_rx = vlan_hwaccel_rx; | |
2774 | jme->old_mtu = netdev->mtu = 1500; | |
2775 | jme->phylink = 0; | |
2776 | jme->tx_ring_size = 1 << 10; | |
2777 | jme->tx_ring_mask = jme->tx_ring_size - 1; | |
2778 | jme->tx_wake_threshold = 1 << 9; | |
2779 | jme->rx_ring_size = 1 << 9; | |
2780 | jme->rx_ring_mask = jme->rx_ring_size - 1; | |
2781 | jme->msg_enable = JME_DEF_MSG_ENABLE; | |
2782 | jme->regs = ioremap(pci_resource_start(pdev, 0), | |
2783 | pci_resource_len(pdev, 0)); | |
2784 | if (!(jme->regs)) { | |
49d70c48 | 2785 | pr_err("Mapping PCI resource region error\n"); |
95252236 GFT |
2786 | rc = -ENOMEM; |
2787 | goto err_out_free_netdev; | |
2788 | } | |
95252236 GFT |
2789 | |
2790 | if (no_pseudohp) { | |
2791 | apmc = jread32(jme, JME_APMC) & ~JME_APMC_PSEUDO_HP_EN; | |
2792 | jwrite32(jme, JME_APMC, apmc); | |
2793 | } else if (force_pseudohp) { | |
2794 | apmc = jread32(jme, JME_APMC) | JME_APMC_PSEUDO_HP_EN; | |
2795 | jwrite32(jme, JME_APMC, apmc); | |
2796 | } | |
2797 | ||
2798 | NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, jme->rx_ring_size >> 2) | |
2799 | ||
2800 | spin_lock_init(&jme->phy_lock); | |
2801 | spin_lock_init(&jme->macaddr_lock); | |
2802 | spin_lock_init(&jme->rxmcs_lock); | |
2803 | ||
2804 | atomic_set(&jme->link_changing, 1); | |
2805 | atomic_set(&jme->rx_cleaning, 1); | |
2806 | atomic_set(&jme->tx_cleaning, 1); | |
2807 | atomic_set(&jme->rx_empty, 1); | |
2808 | ||
2809 | tasklet_init(&jme->pcc_task, | |
164165da | 2810 | jme_pcc_tasklet, |
95252236 GFT |
2811 | (unsigned long) jme); |
2812 | tasklet_init(&jme->linkch_task, | |
164165da | 2813 | jme_link_change_tasklet, |
95252236 GFT |
2814 | (unsigned long) jme); |
2815 | tasklet_init(&jme->txclean_task, | |
164165da | 2816 | jme_tx_clean_tasklet, |
95252236 GFT |
2817 | (unsigned long) jme); |
2818 | tasklet_init(&jme->rxclean_task, | |
164165da | 2819 | jme_rx_clean_tasklet, |
95252236 GFT |
2820 | (unsigned long) jme); |
2821 | tasklet_init(&jme->rxempty_task, | |
164165da | 2822 | jme_rx_empty_tasklet, |
95252236 | 2823 | (unsigned long) jme); |
38ed0c21 | 2824 | tasklet_disable_nosync(&jme->linkch_task); |
95252236 GFT |
2825 | tasklet_disable_nosync(&jme->txclean_task); |
2826 | tasklet_disable_nosync(&jme->rxclean_task); | |
2827 | tasklet_disable_nosync(&jme->rxempty_task); | |
2828 | jme->dpi.cur = PCC_P1; | |
2829 | ||
2830 | jme->reg_ghc = 0; | |
2831 | jme->reg_rxcs = RXCS_DEFAULT; | |
2832 | jme->reg_rxmcs = RXMCS_DEFAULT; | |
2833 | jme->reg_txpfc = 0; | |
2834 | jme->reg_pmcs = PMCS_MFEN; | |
2835 | set_bit(JME_FLAG_TXCSUM, &jme->flags); | |
2836 | set_bit(JME_FLAG_TSO, &jme->flags); | |
2837 | ||
2838 | /* | |
2839 | * Get Max Read Req Size from PCI Config Space | |
2840 | */ | |
2841 | pci_read_config_byte(pdev, PCI_DCSR_MRRS, &jme->mrrs); | |
2842 | jme->mrrs &= PCI_DCSR_MRRS_MASK; | |
2843 | switch (jme->mrrs) { | |
2844 | case MRRS_128B: | |
2845 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_128B; | |
2846 | break; | |
2847 | case MRRS_256B: | |
2848 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_256B; | |
2849 | break; | |
2850 | default: | |
2851 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_512B; | |
2852 | break; | |
ee289b64 | 2853 | } |
95252236 GFT |
2854 | |
2855 | /* | |
2856 | * Must check before reset_mac_processor | |
2857 | */ | |
2858 | jme_check_hw_ver(jme); | |
2859 | jme->mii_if.dev = netdev; | |
2860 | if (jme->fpgaver) { | |
2861 | jme->mii_if.phy_id = 0; | |
2862 | for (i = 1 ; i < 32 ; ++i) { | |
2863 | bmcr = jme_mdio_read(netdev, i, MII_BMCR); | |
2864 | bmsr = jme_mdio_read(netdev, i, MII_BMSR); | |
2865 | if (bmcr != 0xFFFFU && (bmcr != 0 || bmsr != 0)) { | |
2866 | jme->mii_if.phy_id = i; | |
2867 | break; | |
2868 | } | |
2869 | } | |
2870 | ||
2871 | if (!jme->mii_if.phy_id) { | |
2872 | rc = -EIO; | |
49d70c48 JP |
2873 | pr_err("Can not find phy_id\n"); |
2874 | goto err_out_unmap; | |
95252236 GFT |
2875 | } |
2876 | ||
2877 | jme->reg_ghc |= GHC_LINK_POLL; | |
2878 | } else { | |
2879 | jme->mii_if.phy_id = 1; | |
2880 | } | |
2881 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) | |
2882 | jme->mii_if.supports_gmii = true; | |
2883 | else | |
2884 | jme->mii_if.supports_gmii = false; | |
2885 | jme->mii_if.mdio_read = jme_mdio_read; | |
2886 | jme->mii_if.mdio_write = jme_mdio_write; | |
2887 | ||
2888 | jme_clear_pm(jme); | |
2889 | jme_set_phyfifoa(jme); | |
2890 | pci_read_config_byte(pdev, PCI_REVISION_ID, &jme->rev); | |
2891 | if (!jme->fpgaver) | |
2892 | jme_phy_init(jme); | |
2893 | jme_phy_off(jme); | |
2894 | ||
2895 | /* | |
2896 | * Reset MAC processor and reload EEPROM for MAC Address | |
2897 | */ | |
2898 | jme_reset_mac_processor(jme); | |
2899 | rc = jme_reload_eeprom(jme); | |
2900 | if (rc) { | |
49d70c48 | 2901 | pr_err("Reload eeprom for reading MAC Address error\n"); |
d1dfa1d1 | 2902 | goto err_out_unmap; |
95252236 GFT |
2903 | } |
2904 | jme_load_macaddr(netdev); | |
2905 | ||
2906 | /* | |
2907 | * Tell stack that we are not ready to work until open() | |
2908 | */ | |
2909 | netif_carrier_off(netdev); | |
2910 | netif_stop_queue(netdev); | |
2911 | ||
2912 | /* | |
2913 | * Register netdev | |
2914 | */ | |
2915 | rc = register_netdev(netdev); | |
2916 | if (rc) { | |
49d70c48 | 2917 | pr_err("Cannot register net device\n"); |
d1dfa1d1 | 2918 | goto err_out_unmap; |
95252236 GFT |
2919 | } |
2920 | ||
f8502ce4 JP |
2921 | netif_info(jme, probe, jme->dev, "%s%s ver:%x rev:%x macaddr:%pM\n", |
2922 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) ? | |
2923 | "JMC250 Gigabit Ethernet" : | |
2924 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC260) ? | |
2925 | "JMC260 Fast Ethernet" : "Unknown", | |
2926 | (jme->fpgaver != 0) ? " (FPGA)" : "", | |
2927 | (jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev, | |
2928 | jme->rev, netdev->dev_addr); | |
95252236 GFT |
2929 | |
2930 | return 0; | |
2931 | ||
95252236 GFT |
2932 | err_out_unmap: |
2933 | iounmap(jme->regs); | |
2934 | err_out_free_netdev: | |
2935 | pci_set_drvdata(pdev, NULL); | |
2936 | free_netdev(netdev); | |
2937 | err_out_release_regions: | |
2938 | pci_release_regions(pdev); | |
2939 | err_out_disable_pdev: | |
2940 | pci_disable_device(pdev); | |
2941 | err_out: | |
2942 | return rc; | |
2943 | } | |
2944 | ||
2945 | static void __devexit | |
2946 | jme_remove_one(struct pci_dev *pdev) | |
2947 | { | |
2948 | struct net_device *netdev = pci_get_drvdata(pdev); | |
2949 | struct jme_adapter *jme = netdev_priv(netdev); | |
2950 | ||
2951 | unregister_netdev(netdev); | |
95252236 GFT |
2952 | iounmap(jme->regs); |
2953 | pci_set_drvdata(pdev, NULL); | |
2954 | free_netdev(netdev); | |
2955 | pci_release_regions(pdev); | |
2956 | pci_disable_device(pdev); | |
2957 | ||
2958 | } | |
2959 | ||
724f8805 | 2960 | #ifdef CONFIG_PM |
95252236 GFT |
2961 | static int |
2962 | jme_suspend(struct pci_dev *pdev, pm_message_t state) | |
2963 | { | |
2964 | struct net_device *netdev = pci_get_drvdata(pdev); | |
2965 | struct jme_adapter *jme = netdev_priv(netdev); | |
2966 | ||
2967 | atomic_dec(&jme->link_changing); | |
2968 | ||
2969 | netif_device_detach(netdev); | |
2970 | netif_stop_queue(netdev); | |
2971 | jme_stop_irq(jme); | |
2972 | ||
2973 | tasklet_disable(&jme->txclean_task); | |
2974 | tasklet_disable(&jme->rxclean_task); | |
2975 | tasklet_disable(&jme->rxempty_task); | |
2976 | ||
95252236 GFT |
2977 | if (netif_carrier_ok(netdev)) { |
2978 | if (test_bit(JME_FLAG_POLL, &jme->flags)) | |
2979 | jme_polling_mode(jme); | |
2980 | ||
2981 | jme_stop_pcc_timer(jme); | |
2982 | jme_reset_ghc_speed(jme); | |
2983 | jme_disable_rx_engine(jme); | |
2984 | jme_disable_tx_engine(jme); | |
2985 | jme_reset_mac_processor(jme); | |
2986 | jme_free_rx_resources(jme); | |
2987 | jme_free_tx_resources(jme); | |
2988 | netif_carrier_off(netdev); | |
2989 | jme->phylink = 0; | |
2990 | } | |
2991 | ||
2992 | tasklet_enable(&jme->txclean_task); | |
2993 | tasklet_hi_enable(&jme->rxclean_task); | |
2994 | tasklet_hi_enable(&jme->rxempty_task); | |
2995 | ||
2996 | pci_save_state(pdev); | |
2997 | if (jme->reg_pmcs) { | |
2998 | jme_set_100m_half(jme); | |
2999 | ||
3000 | if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) | |
3001 | jme_wait_link(jme); | |
3002 | ||
3003 | jwrite32(jme, JME_PMCS, jme->reg_pmcs); | |
3004 | ||
3005 | pci_enable_wake(pdev, PCI_D3cold, true); | |
3006 | } else { | |
3007 | jme_phy_off(jme); | |
3008 | } | |
3009 | pci_set_power_state(pdev, PCI_D3cold); | |
3010 | ||
3011 | return 0; | |
3012 | } | |
3013 | ||
3014 | static int | |
3015 | jme_resume(struct pci_dev *pdev) | |
3016 | { | |
3017 | struct net_device *netdev = pci_get_drvdata(pdev); | |
3018 | struct jme_adapter *jme = netdev_priv(netdev); | |
3019 | ||
3020 | jme_clear_pm(jme); | |
3021 | pci_restore_state(pdev); | |
3022 | ||
c8a8684d GFT |
3023 | if (test_bit(JME_FLAG_SSET, &jme->flags)) { |
3024 | jme_phy_on(jme); | |
95252236 | 3025 | jme_set_settings(netdev, &jme->old_ecmd); |
c8a8684d | 3026 | } else { |
95252236 | 3027 | jme_reset_phy_processor(jme); |
c8a8684d | 3028 | } |
95252236 | 3029 | |
95252236 GFT |
3030 | jme_start_irq(jme); |
3031 | netif_device_attach(netdev); | |
3032 | ||
3033 | atomic_inc(&jme->link_changing); | |
3034 | ||
3035 | jme_reset_link(jme); | |
3036 | ||
3037 | return 0; | |
3038 | } | |
724f8805 | 3039 | #endif |
95252236 | 3040 | |
a3aa1884 | 3041 | static DEFINE_PCI_DEVICE_TABLE(jme_pci_tbl) = { |
95252236 GFT |
3042 | { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC250) }, |
3043 | { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC260) }, | |
3044 | { } | |
3045 | }; | |
3046 | ||
3047 | static struct pci_driver jme_driver = { | |
3048 | .name = DRV_NAME, | |
3049 | .id_table = jme_pci_tbl, | |
3050 | .probe = jme_init_one, | |
3051 | .remove = __devexit_p(jme_remove_one), | |
3052 | #ifdef CONFIG_PM | |
3053 | .suspend = jme_suspend, | |
3054 | .resume = jme_resume, | |
3055 | #endif /* CONFIG_PM */ | |
3056 | }; | |
3057 | ||
3058 | static int __init | |
3059 | jme_init_module(void) | |
3060 | { | |
49d70c48 | 3061 | pr_info("JMicron JMC2XX ethernet driver version %s\n", DRV_VERSION); |
95252236 GFT |
3062 | return pci_register_driver(&jme_driver); |
3063 | } | |
3064 | ||
3065 | static void __exit | |
3066 | jme_cleanup_module(void) | |
3067 | { | |
3068 | pci_unregister_driver(&jme_driver); | |
3069 | } | |
3070 | ||
3071 | module_init(jme_init_module); | |
3072 | module_exit(jme_cleanup_module); | |
3073 | ||
3074 | MODULE_AUTHOR("Guo-Fu Tseng <cooldavid@cooldavid.org>"); | |
3075 | MODULE_DESCRIPTION("JMicron JMC2x0 PCI Express Ethernet driver"); | |
3076 | MODULE_LICENSE("GPL"); | |
3077 | MODULE_VERSION(DRV_VERSION); | |
3078 | MODULE_DEVICE_TABLE(pci, jme_pci_tbl); | |
3079 |