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Commit | Line | Data |
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d7699f87 GFT |
1 | /* |
2 | * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver | |
3 | * | |
4 | * Copyright 2008 JMicron Technology Corporation | |
5 | * http://www.jmicron.com/ | |
6 | * | |
3bf61c55 GFT |
7 | * Author: Guo-Fu Tseng <cooldavid@cooldavid.org> |
8 | * | |
d7699f87 GFT |
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 | ||
d7699f87 GFT |
24 | #include <linux/module.h> |
25 | #include <linux/kernel.h> | |
26 | #include <linux/pci.h> | |
27 | #include <linux/netdevice.h> | |
28 | #include <linux/etherdevice.h> | |
29 | #include <linux/ethtool.h> | |
30 | #include <linux/mii.h> | |
31 | #include <linux/crc32.h> | |
4330c2f2 | 32 | #include <linux/delay.h> |
29bdd921 | 33 | #include <linux/spinlock.h> |
8c198884 GFT |
34 | #include <linux/in.h> |
35 | #include <linux/ip.h> | |
79ce639c GFT |
36 | #include <linux/ipv6.h> |
37 | #include <linux/tcp.h> | |
38 | #include <linux/udp.h> | |
42b1055e | 39 | #include <linux/if_vlan.h> |
94c5ea02 | 40 | #include <net/ip6_checksum.h> |
d7699f87 GFT |
41 | #include "jme.h" |
42 | ||
cd0ff491 GFT |
43 | static int force_pseudohp = -1; |
44 | static int no_pseudohp = -1; | |
45 | static int no_extplug = -1; | |
46 | module_param(force_pseudohp, int, 0); | |
47 | MODULE_PARM_DESC(force_pseudohp, | |
48 | "Enable pseudo hot-plug feature manually by driver instead of BIOS."); | |
49 | module_param(no_pseudohp, int, 0); | |
50 | MODULE_PARM_DESC(no_pseudohp, "Disable pseudo hot-plug feature."); | |
51 | module_param(no_extplug, int, 0); | |
52 | MODULE_PARM_DESC(no_extplug, | |
53 | "Do not use external plug signal for pseudo hot-plug."); | |
4330c2f2 | 54 | |
3bf61c55 GFT |
55 | static int |
56 | jme_mdio_read(struct net_device *netdev, int phy, int reg) | |
d7699f87 GFT |
57 | { |
58 | struct jme_adapter *jme = netdev_priv(netdev); | |
cd0ff491 | 59 | int i, val, again = (reg == MII_BMSR) ? 1 : 0; |
d7699f87 | 60 | |
186fc259 | 61 | read_again: |
cd0ff491 | 62 | jwrite32(jme, JME_SMI, SMI_OP_REQ | |
3bf61c55 GFT |
63 | smi_phy_addr(phy) | |
64 | smi_reg_addr(reg)); | |
d7699f87 GFT |
65 | |
66 | wmb(); | |
cd0ff491 | 67 | for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { |
cdcdc9eb | 68 | udelay(20); |
b3821cc5 GFT |
69 | val = jread32(jme, JME_SMI); |
70 | if ((val & SMI_OP_REQ) == 0) | |
3bf61c55 | 71 | break; |
cd0ff491 | 72 | } |
d7699f87 | 73 | |
cd0ff491 GFT |
74 | if (i == 0) { |
75 | jeprintk(jme->pdev, "phy(%d) read timeout : %d\n", phy, reg); | |
3bf61c55 | 76 | return 0; |
cd0ff491 | 77 | } |
d7699f87 | 78 | |
cd0ff491 | 79 | if (again--) |
186fc259 GFT |
80 | goto read_again; |
81 | ||
cd0ff491 | 82 | return (val & SMI_DATA_MASK) >> SMI_DATA_SHIFT; |
d7699f87 GFT |
83 | } |
84 | ||
3bf61c55 GFT |
85 | static void |
86 | jme_mdio_write(struct net_device *netdev, | |
87 | int phy, int reg, int val) | |
d7699f87 GFT |
88 | { |
89 | struct jme_adapter *jme = netdev_priv(netdev); | |
90 | int i; | |
91 | ||
3bf61c55 GFT |
92 | jwrite32(jme, JME_SMI, SMI_OP_WRITE | SMI_OP_REQ | |
93 | ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) | | |
94 | smi_phy_addr(phy) | smi_reg_addr(reg)); | |
d7699f87 GFT |
95 | |
96 | wmb(); | |
cdcdc9eb GFT |
97 | for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { |
98 | udelay(20); | |
8d27293f | 99 | if ((jread32(jme, JME_SMI) & SMI_OP_REQ) == 0) |
3bf61c55 GFT |
100 | break; |
101 | } | |
d7699f87 | 102 | |
3bf61c55 | 103 | if (i == 0) |
cd0ff491 | 104 | jeprintk(jme->pdev, "phy(%d) write timeout : %d\n", phy, reg); |
d7699f87 | 105 | |
3bf61c55 | 106 | return; |
d7699f87 GFT |
107 | } |
108 | ||
cd0ff491 | 109 | static inline void |
3bf61c55 | 110 | jme_reset_phy_processor(struct jme_adapter *jme) |
d7699f87 | 111 | { |
cd0ff491 | 112 | u32 val; |
3bf61c55 GFT |
113 | |
114 | jme_mdio_write(jme->dev, | |
115 | jme->mii_if.phy_id, | |
8c198884 GFT |
116 | MII_ADVERTISE, ADVERTISE_ALL | |
117 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
3bf61c55 | 118 | |
cd0ff491 | 119 | if (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) |
8d27293f GFT |
120 | jme_mdio_write(jme->dev, |
121 | jme->mii_if.phy_id, | |
122 | MII_CTRL1000, | |
123 | ADVERTISE_1000FULL | ADVERTISE_1000HALF); | |
3bf61c55 | 124 | |
fcf45b4c GFT |
125 | val = jme_mdio_read(jme->dev, |
126 | jme->mii_if.phy_id, | |
127 | MII_BMCR); | |
128 | ||
129 | jme_mdio_write(jme->dev, | |
130 | jme->mii_if.phy_id, | |
131 | MII_BMCR, val | BMCR_RESET); | |
132 | ||
3bf61c55 GFT |
133 | return; |
134 | } | |
135 | ||
b3821cc5 GFT |
136 | static void |
137 | jme_setup_wakeup_frame(struct jme_adapter *jme, | |
cd0ff491 | 138 | u32 *mask, u32 crc, int fnr) |
b3821cc5 GFT |
139 | { |
140 | int i; | |
141 | ||
142 | /* | |
143 | * Setup CRC pattern | |
144 | */ | |
145 | jwrite32(jme, JME_WFOI, WFOI_CRC_SEL | (fnr & WFOI_FRAME_SEL)); | |
146 | wmb(); | |
147 | jwrite32(jme, JME_WFODP, crc); | |
148 | wmb(); | |
149 | ||
150 | /* | |
151 | * Setup Mask | |
152 | */ | |
cd0ff491 | 153 | for (i = 0 ; i < WAKEUP_FRAME_MASK_DWNR ; ++i) { |
b3821cc5 GFT |
154 | jwrite32(jme, JME_WFOI, |
155 | ((i << WFOI_MASK_SHIFT) & WFOI_MASK_SEL) | | |
156 | (fnr & WFOI_FRAME_SEL)); | |
157 | wmb(); | |
158 | jwrite32(jme, JME_WFODP, mask[i]); | |
159 | wmb(); | |
160 | } | |
161 | } | |
3bf61c55 | 162 | |
cd0ff491 | 163 | static inline void |
3bf61c55 GFT |
164 | jme_reset_mac_processor(struct jme_adapter *jme) |
165 | { | |
cd0ff491 GFT |
166 | u32 mask[WAKEUP_FRAME_MASK_DWNR] = {0, 0, 0, 0}; |
167 | u32 crc = 0xCDCDCDCD; | |
168 | u32 gpreg0; | |
b3821cc5 GFT |
169 | int i; |
170 | ||
3bf61c55 | 171 | jwrite32(jme, JME_GHC, jme->reg_ghc | GHC_SWRST); |
d7699f87 | 172 | udelay(2); |
3bf61c55 | 173 | jwrite32(jme, JME_GHC, jme->reg_ghc); |
cd0ff491 GFT |
174 | |
175 | jwrite32(jme, JME_RXDBA_LO, 0x00000000); | |
176 | jwrite32(jme, JME_RXDBA_HI, 0x00000000); | |
177 | jwrite32(jme, JME_RXQDC, 0x00000000); | |
178 | jwrite32(jme, JME_RXNDA, 0x00000000); | |
179 | jwrite32(jme, JME_TXDBA_LO, 0x00000000); | |
180 | jwrite32(jme, JME_TXDBA_HI, 0x00000000); | |
181 | jwrite32(jme, JME_TXQDC, 0x00000000); | |
182 | jwrite32(jme, JME_TXNDA, 0x00000000); | |
183 | ||
4330c2f2 GFT |
184 | jwrite32(jme, JME_RXMCHT_LO, 0x00000000); |
185 | jwrite32(jme, JME_RXMCHT_HI, 0x00000000); | |
cd0ff491 | 186 | for (i = 0 ; i < WAKEUP_FRAME_NR ; ++i) |
b3821cc5 | 187 | jme_setup_wakeup_frame(jme, mask, crc, i); |
cd0ff491 | 188 | if (jme->fpgaver) |
cdcdc9eb GFT |
189 | gpreg0 = GPREG0_DEFAULT | GPREG0_LNKINTPOLL; |
190 | else | |
191 | gpreg0 = GPREG0_DEFAULT; | |
192 | jwrite32(jme, JME_GPREG0, gpreg0); | |
9b9d55de | 193 | jwrite32(jme, JME_GPREG1, GPREG1_DEFAULT); |
d7699f87 GFT |
194 | } |
195 | ||
cd0ff491 GFT |
196 | static inline void |
197 | jme_reset_ghc_speed(struct jme_adapter *jme) | |
198 | { | |
199 | jme->reg_ghc &= ~(GHC_SPEED_1000M | GHC_DPX); | |
200 | jwrite32(jme, JME_GHC, jme->reg_ghc); | |
201 | } | |
202 | ||
203 | static inline void | |
3bf61c55 | 204 | jme_clear_pm(struct jme_adapter *jme) |
d7699f87 | 205 | { |
29bdd921 | 206 | jwrite32(jme, JME_PMCS, 0xFFFF0000 | jme->reg_pmcs); |
4330c2f2 | 207 | pci_set_power_state(jme->pdev, PCI_D0); |
42b1055e | 208 | pci_enable_wake(jme->pdev, PCI_D0, false); |
d7699f87 GFT |
209 | } |
210 | ||
3bf61c55 GFT |
211 | static int |
212 | jme_reload_eeprom(struct jme_adapter *jme) | |
d7699f87 | 213 | { |
cd0ff491 | 214 | u32 val; |
d7699f87 GFT |
215 | int i; |
216 | ||
217 | val = jread32(jme, JME_SMBCSR); | |
218 | ||
cd0ff491 | 219 | if (val & SMBCSR_EEPROMD) { |
d7699f87 GFT |
220 | val |= SMBCSR_CNACK; |
221 | jwrite32(jme, JME_SMBCSR, val); | |
222 | val |= SMBCSR_RELOAD; | |
223 | jwrite32(jme, JME_SMBCSR, val); | |
224 | mdelay(12); | |
225 | ||
cd0ff491 | 226 | for (i = JME_EEPROM_RELOAD_TIMEOUT; i > 0; --i) { |
d7699f87 GFT |
227 | mdelay(1); |
228 | if ((jread32(jme, JME_SMBCSR) & SMBCSR_RELOAD) == 0) | |
229 | break; | |
230 | } | |
231 | ||
cd0ff491 GFT |
232 | if (i == 0) { |
233 | jeprintk(jme->pdev, "eeprom reload timeout\n"); | |
d7699f87 GFT |
234 | return -EIO; |
235 | } | |
236 | } | |
3bf61c55 | 237 | |
d7699f87 GFT |
238 | return 0; |
239 | } | |
240 | ||
3bf61c55 GFT |
241 | static void |
242 | jme_load_macaddr(struct net_device *netdev) | |
d7699f87 GFT |
243 | { |
244 | struct jme_adapter *jme = netdev_priv(netdev); | |
245 | unsigned char macaddr[6]; | |
cd0ff491 | 246 | u32 val; |
d7699f87 | 247 | |
cd0ff491 | 248 | spin_lock_bh(&jme->macaddr_lock); |
4330c2f2 | 249 | val = jread32(jme, JME_RXUMA_LO); |
d7699f87 GFT |
250 | macaddr[0] = (val >> 0) & 0xFF; |
251 | macaddr[1] = (val >> 8) & 0xFF; | |
252 | macaddr[2] = (val >> 16) & 0xFF; | |
253 | macaddr[3] = (val >> 24) & 0xFF; | |
4330c2f2 | 254 | val = jread32(jme, JME_RXUMA_HI); |
d7699f87 GFT |
255 | macaddr[4] = (val >> 0) & 0xFF; |
256 | macaddr[5] = (val >> 8) & 0xFF; | |
cd0ff491 GFT |
257 | memcpy(netdev->dev_addr, macaddr, 6); |
258 | spin_unlock_bh(&jme->macaddr_lock); | |
3bf61c55 GFT |
259 | } |
260 | ||
cd0ff491 | 261 | static inline void |
3bf61c55 GFT |
262 | jme_set_rx_pcc(struct jme_adapter *jme, int p) |
263 | { | |
cd0ff491 | 264 | switch (p) { |
192570e0 GFT |
265 | case PCC_OFF: |
266 | jwrite32(jme, JME_PCCRX0, | |
267 | ((PCC_OFF_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
268 | ((PCC_OFF_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
269 | break; | |
3bf61c55 GFT |
270 | case PCC_P1: |
271 | jwrite32(jme, JME_PCCRX0, | |
272 | ((PCC_P1_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
273 | ((PCC_P1_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
274 | break; | |
275 | case PCC_P2: | |
276 | jwrite32(jme, JME_PCCRX0, | |
277 | ((PCC_P2_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
278 | ((PCC_P2_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
279 | break; | |
280 | case PCC_P3: | |
281 | jwrite32(jme, JME_PCCRX0, | |
282 | ((PCC_P3_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | | |
283 | ((PCC_P3_CNT << PCCRX_SHIFT) & PCCRX_MASK)); | |
284 | break; | |
285 | default: | |
286 | break; | |
287 | } | |
192570e0 | 288 | wmb(); |
3bf61c55 | 289 | |
cd0ff491 | 290 | if (!(test_bit(JME_FLAG_POLL, &jme->flags))) |
c97b5740 | 291 | netif_info(jme, rx_status, jme->dev, "Switched to PCC_P%d\n", p); |
d7699f87 GFT |
292 | } |
293 | ||
fcf45b4c | 294 | static void |
3bf61c55 | 295 | jme_start_irq(struct jme_adapter *jme) |
d7699f87 | 296 | { |
3bf61c55 GFT |
297 | register struct dynpcc_info *dpi = &(jme->dpi); |
298 | ||
299 | jme_set_rx_pcc(jme, PCC_P1); | |
3bf61c55 GFT |
300 | dpi->cur = PCC_P1; |
301 | dpi->attempt = PCC_P1; | |
302 | dpi->cnt = 0; | |
303 | ||
304 | jwrite32(jme, JME_PCCTX, | |
8c198884 GFT |
305 | ((PCC_TX_TO << PCCTXTO_SHIFT) & PCCTXTO_MASK) | |
306 | ((PCC_TX_CNT << PCCTX_SHIFT) & PCCTX_MASK) | | |
3bf61c55 GFT |
307 | PCCTXQ0_EN |
308 | ); | |
309 | ||
d7699f87 GFT |
310 | /* |
311 | * Enable Interrupts | |
312 | */ | |
313 | jwrite32(jme, JME_IENS, INTR_ENABLE); | |
314 | } | |
315 | ||
cd0ff491 | 316 | static inline void |
3bf61c55 | 317 | jme_stop_irq(struct jme_adapter *jme) |
d7699f87 GFT |
318 | { |
319 | /* | |
320 | * Disable Interrupts | |
321 | */ | |
cd0ff491 | 322 | jwrite32f(jme, JME_IENC, INTR_ENABLE); |
d7699f87 GFT |
323 | } |
324 | ||
cd0ff491 | 325 | static u32 |
cdcdc9eb GFT |
326 | jme_linkstat_from_phy(struct jme_adapter *jme) |
327 | { | |
cd0ff491 | 328 | u32 phylink, bmsr; |
cdcdc9eb GFT |
329 | |
330 | phylink = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 17); | |
331 | bmsr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMSR); | |
cd0ff491 | 332 | if (bmsr & BMSR_ANCOMP) |
cdcdc9eb GFT |
333 | phylink |= PHY_LINK_AUTONEG_COMPLETE; |
334 | ||
335 | return phylink; | |
336 | } | |
337 | ||
cd0ff491 | 338 | static inline void |
e882564f | 339 | jme_set_phyfifoa(struct jme_adapter *jme) |
cd0ff491 GFT |
340 | { |
341 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0004); | |
342 | } | |
343 | ||
344 | static inline void | |
e882564f | 345 | jme_set_phyfifob(struct jme_adapter *jme) |
cd0ff491 GFT |
346 | { |
347 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0000); | |
348 | } | |
349 | ||
fcf45b4c GFT |
350 | static int |
351 | jme_check_link(struct net_device *netdev, int testonly) | |
d7699f87 GFT |
352 | { |
353 | struct jme_adapter *jme = netdev_priv(netdev); | |
9b9d55de | 354 | u32 phylink, ghc, cnt = JME_SPDRSV_TIMEOUT, bmcr, gpreg1; |
79ce639c | 355 | char linkmsg[64]; |
fcf45b4c | 356 | int rc = 0; |
d7699f87 | 357 | |
b3821cc5 | 358 | linkmsg[0] = '\0'; |
cdcdc9eb | 359 | |
cd0ff491 | 360 | if (jme->fpgaver) |
cdcdc9eb GFT |
361 | phylink = jme_linkstat_from_phy(jme); |
362 | else | |
363 | phylink = jread32(jme, JME_PHY_LINK); | |
d7699f87 | 364 | |
cd0ff491 GFT |
365 | if (phylink & PHY_LINK_UP) { |
366 | if (!(phylink & PHY_LINK_AUTONEG_COMPLETE)) { | |
8c198884 GFT |
367 | /* |
368 | * If we did not enable AN | |
369 | * Speed/Duplex Info should be obtained from SMI | |
370 | */ | |
371 | phylink = PHY_LINK_UP; | |
372 | ||
373 | bmcr = jme_mdio_read(jme->dev, | |
374 | jme->mii_if.phy_id, | |
375 | MII_BMCR); | |
376 | ||
377 | phylink |= ((bmcr & BMCR_SPEED1000) && | |
378 | (bmcr & BMCR_SPEED100) == 0) ? | |
379 | PHY_LINK_SPEED_1000M : | |
380 | (bmcr & BMCR_SPEED100) ? | |
381 | PHY_LINK_SPEED_100M : | |
382 | PHY_LINK_SPEED_10M; | |
383 | ||
384 | phylink |= (bmcr & BMCR_FULLDPLX) ? | |
385 | PHY_LINK_DUPLEX : 0; | |
79ce639c | 386 | |
b3821cc5 | 387 | strcat(linkmsg, "Forced: "); |
cd0ff491 | 388 | } else { |
8c198884 GFT |
389 | /* |
390 | * Keep polling for speed/duplex resolve complete | |
391 | */ | |
cd0ff491 | 392 | while (!(phylink & PHY_LINK_SPEEDDPU_RESOLVED) && |
8c198884 GFT |
393 | --cnt) { |
394 | ||
395 | udelay(1); | |
8c198884 | 396 | |
cd0ff491 | 397 | if (jme->fpgaver) |
cdcdc9eb GFT |
398 | phylink = jme_linkstat_from_phy(jme); |
399 | else | |
400 | phylink = jread32(jme, JME_PHY_LINK); | |
8c198884 | 401 | } |
cd0ff491 GFT |
402 | if (!cnt) |
403 | jeprintk(jme->pdev, | |
8c198884 | 404 | "Waiting speed resolve timeout.\n"); |
79ce639c | 405 | |
b3821cc5 | 406 | strcat(linkmsg, "ANed: "); |
d7699f87 GFT |
407 | } |
408 | ||
cd0ff491 | 409 | if (jme->phylink == phylink) { |
fcf45b4c GFT |
410 | rc = 1; |
411 | goto out; | |
412 | } | |
cd0ff491 | 413 | if (testonly) |
fcf45b4c GFT |
414 | goto out; |
415 | ||
416 | jme->phylink = phylink; | |
417 | ||
94c5ea02 GFT |
418 | ghc = jme->reg_ghc & ~(GHC_SPEED | GHC_DPX | |
419 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE | | |
420 | GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY); | |
cd0ff491 GFT |
421 | switch (phylink & PHY_LINK_SPEED_MASK) { |
422 | case PHY_LINK_SPEED_10M: | |
94c5ea02 GFT |
423 | ghc |= GHC_SPEED_10M | |
424 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; | |
cd0ff491 | 425 | strcat(linkmsg, "10 Mbps, "); |
cd0ff491 GFT |
426 | break; |
427 | case PHY_LINK_SPEED_100M: | |
94c5ea02 GFT |
428 | ghc |= GHC_SPEED_100M | |
429 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; | |
cd0ff491 | 430 | strcat(linkmsg, "100 Mbps, "); |
cd0ff491 GFT |
431 | break; |
432 | case PHY_LINK_SPEED_1000M: | |
94c5ea02 GFT |
433 | ghc |= GHC_SPEED_1000M | |
434 | GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY; | |
cd0ff491 | 435 | strcat(linkmsg, "1000 Mbps, "); |
cd0ff491 GFT |
436 | break; |
437 | default: | |
438 | break; | |
d7699f87 | 439 | } |
d7699f87 | 440 | |
cd0ff491 | 441 | if (phylink & PHY_LINK_DUPLEX) { |
d7699f87 | 442 | jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT); |
9b9d55de | 443 | ghc |= GHC_DPX; |
cd0ff491 | 444 | } else { |
d7699f87 | 445 | jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT | |
3bf61c55 GFT |
446 | TXMCS_BACKOFF | |
447 | TXMCS_CARRIERSENSE | | |
448 | TXMCS_COLLISION); | |
8c198884 GFT |
449 | jwrite32(jme, JME_TXTRHD, TXTRHD_TXPEN | |
450 | ((0x2000 << TXTRHD_TXP_SHIFT) & TXTRHD_TXP) | | |
451 | TXTRHD_TXREN | | |
452 | ((8 << TXTRHD_TXRL_SHIFT) & TXTRHD_TXRL)); | |
453 | } | |
9b9d55de GFT |
454 | |
455 | gpreg1 = GPREG1_DEFAULT; | |
456 | if (is_buggy250(jme->pdev->device, jme->chiprev)) { | |
457 | if (!(phylink & PHY_LINK_DUPLEX)) | |
458 | gpreg1 |= GPREG1_HALFMODEPATCH; | |
459 | switch (phylink & PHY_LINK_SPEED_MASK) { | |
460 | case PHY_LINK_SPEED_10M: | |
461 | jme_set_phyfifoa(jme); | |
462 | gpreg1 |= GPREG1_RSSPATCH; | |
463 | break; | |
464 | case PHY_LINK_SPEED_100M: | |
465 | jme_set_phyfifob(jme); | |
466 | gpreg1 |= GPREG1_RSSPATCH; | |
467 | break; | |
468 | case PHY_LINK_SPEED_1000M: | |
469 | jme_set_phyfifoa(jme); | |
470 | break; | |
471 | default: | |
472 | break; | |
473 | } | |
474 | } | |
d7699f87 | 475 | |
94c5ea02 | 476 | jwrite32(jme, JME_GPREG1, gpreg1); |
fcf45b4c | 477 | jwrite32(jme, JME_GHC, ghc); |
94c5ea02 | 478 | jme->reg_ghc = ghc; |
fcf45b4c | 479 | |
94c5ea02 GFT |
480 | strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ? |
481 | "Full-Duplex, " : | |
482 | "Half-Duplex, "); | |
483 | strcat(linkmsg, (phylink & PHY_LINK_MDI_STAT) ? | |
484 | "MDI-X" : | |
485 | "MDI"); | |
c97b5740 | 486 | netif_info(jme, link, jme->dev, "Link is up at %s.\n", linkmsg); |
cd0ff491 GFT |
487 | netif_carrier_on(netdev); |
488 | } else { | |
489 | if (testonly) | |
fcf45b4c GFT |
490 | goto out; |
491 | ||
c97b5740 | 492 | netif_info(jme, link, jme->dev, "Link is down.\n"); |
fcf45b4c | 493 | jme->phylink = 0; |
cd0ff491 | 494 | netif_carrier_off(netdev); |
d7699f87 | 495 | } |
fcf45b4c GFT |
496 | |
497 | out: | |
498 | return rc; | |
d7699f87 GFT |
499 | } |
500 | ||
3bf61c55 GFT |
501 | static int |
502 | jme_setup_tx_resources(struct jme_adapter *jme) | |
d7699f87 | 503 | { |
d7699f87 GFT |
504 | struct jme_ring *txring = &(jme->txring[0]); |
505 | ||
506 | txring->alloc = dma_alloc_coherent(&(jme->pdev->dev), | |
b3821cc5 GFT |
507 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), |
508 | &(txring->dmaalloc), | |
509 | GFP_ATOMIC); | |
fcf45b4c | 510 | |
fa97b924 GFT |
511 | if (!txring->alloc) |
512 | goto err_set_null; | |
d7699f87 GFT |
513 | |
514 | /* | |
515 | * 16 Bytes align | |
516 | */ | |
cd0ff491 | 517 | txring->desc = (void *)ALIGN((unsigned long)(txring->alloc), |
3bf61c55 | 518 | RING_DESC_ALIGN); |
4330c2f2 | 519 | txring->dma = ALIGN(txring->dmaalloc, RING_DESC_ALIGN); |
d7699f87 | 520 | txring->next_to_use = 0; |
cdcdc9eb | 521 | atomic_set(&txring->next_to_clean, 0); |
b3821cc5 | 522 | atomic_set(&txring->nr_free, jme->tx_ring_size); |
d7699f87 | 523 | |
fa97b924 GFT |
524 | txring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * |
525 | jme->tx_ring_size, GFP_ATOMIC); | |
526 | if (unlikely(!(txring->bufinf))) | |
527 | goto err_free_txring; | |
528 | ||
d7699f87 | 529 | /* |
b3821cc5 | 530 | * Initialize Transmit Descriptors |
d7699f87 | 531 | */ |
b3821cc5 | 532 | memset(txring->alloc, 0, TX_RING_ALLOC_SIZE(jme->tx_ring_size)); |
3bf61c55 | 533 | memset(txring->bufinf, 0, |
b3821cc5 | 534 | sizeof(struct jme_buffer_info) * jme->tx_ring_size); |
d7699f87 GFT |
535 | |
536 | return 0; | |
fa97b924 GFT |
537 | |
538 | err_free_txring: | |
539 | dma_free_coherent(&(jme->pdev->dev), | |
540 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), | |
541 | txring->alloc, | |
542 | txring->dmaalloc); | |
543 | ||
544 | err_set_null: | |
545 | txring->desc = NULL; | |
546 | txring->dmaalloc = 0; | |
547 | txring->dma = 0; | |
548 | txring->bufinf = NULL; | |
549 | ||
550 | return -ENOMEM; | |
d7699f87 GFT |
551 | } |
552 | ||
3bf61c55 GFT |
553 | static void |
554 | jme_free_tx_resources(struct jme_adapter *jme) | |
d7699f87 GFT |
555 | { |
556 | int i; | |
557 | struct jme_ring *txring = &(jme->txring[0]); | |
fa97b924 | 558 | struct jme_buffer_info *txbi; |
d7699f87 | 559 | |
cd0ff491 | 560 | if (txring->alloc) { |
fa97b924 GFT |
561 | if (txring->bufinf) { |
562 | for (i = 0 ; i < jme->tx_ring_size ; ++i) { | |
563 | txbi = txring->bufinf + i; | |
564 | if (txbi->skb) { | |
565 | dev_kfree_skb(txbi->skb); | |
566 | txbi->skb = NULL; | |
567 | } | |
568 | txbi->mapping = 0; | |
569 | txbi->len = 0; | |
570 | txbi->nr_desc = 0; | |
571 | txbi->start_xmit = 0; | |
d7699f87 | 572 | } |
fa97b924 | 573 | kfree(txring->bufinf); |
d7699f87 GFT |
574 | } |
575 | ||
576 | dma_free_coherent(&(jme->pdev->dev), | |
b3821cc5 | 577 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), |
d7699f87 GFT |
578 | txring->alloc, |
579 | txring->dmaalloc); | |
3bf61c55 GFT |
580 | |
581 | txring->alloc = NULL; | |
582 | txring->desc = NULL; | |
583 | txring->dmaalloc = 0; | |
584 | txring->dma = 0; | |
fa97b924 | 585 | txring->bufinf = NULL; |
d7699f87 | 586 | } |
3bf61c55 | 587 | txring->next_to_use = 0; |
cdcdc9eb | 588 | atomic_set(&txring->next_to_clean, 0); |
79ce639c | 589 | atomic_set(&txring->nr_free, 0); |
d7699f87 GFT |
590 | } |
591 | ||
cd0ff491 | 592 | static inline void |
3bf61c55 | 593 | jme_enable_tx_engine(struct jme_adapter *jme) |
d7699f87 GFT |
594 | { |
595 | /* | |
596 | * Select Queue 0 | |
597 | */ | |
598 | jwrite32(jme, JME_TXCS, TXCS_DEFAULT | TXCS_SELECT_QUEUE0); | |
cd0ff491 | 599 | wmb(); |
d7699f87 GFT |
600 | |
601 | /* | |
602 | * Setup TX Queue 0 DMA Bass Address | |
603 | */ | |
fcf45b4c | 604 | jwrite32(jme, JME_TXDBA_LO, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); |
3bf61c55 | 605 | jwrite32(jme, JME_TXDBA_HI, (__u64)(jme->txring[0].dma) >> 32); |
fcf45b4c | 606 | jwrite32(jme, JME_TXNDA, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); |
d7699f87 GFT |
607 | |
608 | /* | |
609 | * Setup TX Descptor Count | |
610 | */ | |
b3821cc5 | 611 | jwrite32(jme, JME_TXQDC, jme->tx_ring_size); |
d7699f87 GFT |
612 | |
613 | /* | |
614 | * Enable TX Engine | |
615 | */ | |
616 | wmb(); | |
4330c2f2 GFT |
617 | jwrite32(jme, JME_TXCS, jme->reg_txcs | |
618 | TXCS_SELECT_QUEUE0 | | |
619 | TXCS_ENABLE); | |
d7699f87 GFT |
620 | |
621 | } | |
622 | ||
cd0ff491 | 623 | static inline void |
29bdd921 GFT |
624 | jme_restart_tx_engine(struct jme_adapter *jme) |
625 | { | |
626 | /* | |
627 | * Restart TX Engine | |
628 | */ | |
629 | jwrite32(jme, JME_TXCS, jme->reg_txcs | | |
630 | TXCS_SELECT_QUEUE0 | | |
631 | TXCS_ENABLE); | |
632 | } | |
633 | ||
cd0ff491 | 634 | static inline void |
3bf61c55 | 635 | jme_disable_tx_engine(struct jme_adapter *jme) |
d7699f87 GFT |
636 | { |
637 | int i; | |
cd0ff491 | 638 | u32 val; |
d7699f87 GFT |
639 | |
640 | /* | |
641 | * Disable TX Engine | |
642 | */ | |
fcf45b4c | 643 | jwrite32(jme, JME_TXCS, jme->reg_txcs | TXCS_SELECT_QUEUE0); |
cd0ff491 | 644 | wmb(); |
d7699f87 GFT |
645 | |
646 | val = jread32(jme, JME_TXCS); | |
cd0ff491 | 647 | for (i = JME_TX_DISABLE_TIMEOUT ; (val & TXCS_ENABLE) && i > 0 ; --i) { |
fcf45b4c | 648 | mdelay(1); |
d7699f87 | 649 | val = jread32(jme, JME_TXCS); |
cd0ff491 | 650 | rmb(); |
d7699f87 GFT |
651 | } |
652 | ||
cd0ff491 GFT |
653 | if (!i) |
654 | jeprintk(jme->pdev, "Disable TX engine timeout.\n"); | |
d7699f87 GFT |
655 | } |
656 | ||
3bf61c55 GFT |
657 | static void |
658 | jme_set_clean_rxdesc(struct jme_adapter *jme, int i) | |
d7699f87 | 659 | { |
fa97b924 | 660 | struct jme_ring *rxring = &(jme->rxring[0]); |
cd0ff491 | 661 | register struct rxdesc *rxdesc = rxring->desc; |
4330c2f2 GFT |
662 | struct jme_buffer_info *rxbi = rxring->bufinf; |
663 | rxdesc += i; | |
664 | rxbi += i; | |
665 | ||
666 | rxdesc->dw[0] = 0; | |
667 | rxdesc->dw[1] = 0; | |
3bf61c55 | 668 | rxdesc->desc1.bufaddrh = cpu_to_le32((__u64)rxbi->mapping >> 32); |
fcf45b4c GFT |
669 | rxdesc->desc1.bufaddrl = cpu_to_le32( |
670 | (__u64)rxbi->mapping & 0xFFFFFFFFUL); | |
3bf61c55 | 671 | rxdesc->desc1.datalen = cpu_to_le16(rxbi->len); |
cd0ff491 | 672 | if (jme->dev->features & NETIF_F_HIGHDMA) |
3bf61c55 | 673 | rxdesc->desc1.flags = RXFLAG_64BIT; |
d7699f87 | 674 | wmb(); |
3bf61c55 | 675 | rxdesc->desc1.flags |= RXFLAG_OWN | RXFLAG_INT; |
d7699f87 GFT |
676 | } |
677 | ||
3bf61c55 GFT |
678 | static int |
679 | jme_make_new_rx_buf(struct jme_adapter *jme, int i) | |
4330c2f2 GFT |
680 | { |
681 | struct jme_ring *rxring = &(jme->rxring[0]); | |
b3821cc5 | 682 | struct jme_buffer_info *rxbi = rxring->bufinf + i; |
cd0ff491 | 683 | struct sk_buff *skb; |
4330c2f2 | 684 | |
79ce639c GFT |
685 | skb = netdev_alloc_skb(jme->dev, |
686 | jme->dev->mtu + RX_EXTRA_LEN); | |
cd0ff491 | 687 | if (unlikely(!skb)) |
4330c2f2 | 688 | return -ENOMEM; |
3bf61c55 | 689 | |
4330c2f2 | 690 | rxbi->skb = skb; |
3bf61c55 | 691 | rxbi->len = skb_tailroom(skb); |
b3821cc5 GFT |
692 | rxbi->mapping = pci_map_page(jme->pdev, |
693 | virt_to_page(skb->data), | |
694 | offset_in_page(skb->data), | |
695 | rxbi->len, | |
696 | PCI_DMA_FROMDEVICE); | |
4330c2f2 GFT |
697 | |
698 | return 0; | |
699 | } | |
700 | ||
3bf61c55 GFT |
701 | static void |
702 | jme_free_rx_buf(struct jme_adapter *jme, int i) | |
4330c2f2 GFT |
703 | { |
704 | struct jme_ring *rxring = &(jme->rxring[0]); | |
705 | struct jme_buffer_info *rxbi = rxring->bufinf; | |
706 | rxbi += i; | |
707 | ||
cd0ff491 | 708 | if (rxbi->skb) { |
b3821cc5 | 709 | pci_unmap_page(jme->pdev, |
4330c2f2 | 710 | rxbi->mapping, |
3bf61c55 | 711 | rxbi->len, |
4330c2f2 GFT |
712 | PCI_DMA_FROMDEVICE); |
713 | dev_kfree_skb(rxbi->skb); | |
714 | rxbi->skb = NULL; | |
715 | rxbi->mapping = 0; | |
3bf61c55 | 716 | rxbi->len = 0; |
4330c2f2 GFT |
717 | } |
718 | } | |
719 | ||
3bf61c55 GFT |
720 | static void |
721 | jme_free_rx_resources(struct jme_adapter *jme) | |
722 | { | |
723 | int i; | |
724 | struct jme_ring *rxring = &(jme->rxring[0]); | |
725 | ||
cd0ff491 | 726 | if (rxring->alloc) { |
fa97b924 GFT |
727 | if (rxring->bufinf) { |
728 | for (i = 0 ; i < jme->rx_ring_size ; ++i) | |
729 | jme_free_rx_buf(jme, i); | |
730 | kfree(rxring->bufinf); | |
731 | } | |
3bf61c55 GFT |
732 | |
733 | dma_free_coherent(&(jme->pdev->dev), | |
b3821cc5 | 734 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), |
3bf61c55 GFT |
735 | rxring->alloc, |
736 | rxring->dmaalloc); | |
737 | rxring->alloc = NULL; | |
738 | rxring->desc = NULL; | |
739 | rxring->dmaalloc = 0; | |
740 | rxring->dma = 0; | |
fa97b924 | 741 | rxring->bufinf = NULL; |
3bf61c55 GFT |
742 | } |
743 | rxring->next_to_use = 0; | |
cdcdc9eb | 744 | atomic_set(&rxring->next_to_clean, 0); |
3bf61c55 GFT |
745 | } |
746 | ||
747 | static int | |
748 | jme_setup_rx_resources(struct jme_adapter *jme) | |
d7699f87 GFT |
749 | { |
750 | int i; | |
751 | struct jme_ring *rxring = &(jme->rxring[0]); | |
752 | ||
753 | rxring->alloc = dma_alloc_coherent(&(jme->pdev->dev), | |
b3821cc5 GFT |
754 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), |
755 | &(rxring->dmaalloc), | |
756 | GFP_ATOMIC); | |
fa97b924 GFT |
757 | if (!rxring->alloc) |
758 | goto err_set_null; | |
d7699f87 GFT |
759 | |
760 | /* | |
761 | * 16 Bytes align | |
762 | */ | |
cd0ff491 | 763 | rxring->desc = (void *)ALIGN((unsigned long)(rxring->alloc), |
3bf61c55 | 764 | RING_DESC_ALIGN); |
4330c2f2 | 765 | rxring->dma = ALIGN(rxring->dmaalloc, RING_DESC_ALIGN); |
d7699f87 | 766 | rxring->next_to_use = 0; |
cdcdc9eb | 767 | atomic_set(&rxring->next_to_clean, 0); |
d7699f87 | 768 | |
fa97b924 GFT |
769 | rxring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * |
770 | jme->rx_ring_size, GFP_ATOMIC); | |
771 | if (unlikely(!(rxring->bufinf))) | |
772 | goto err_free_rxring; | |
773 | ||
d7699f87 GFT |
774 | /* |
775 | * Initiallize Receive Descriptors | |
776 | */ | |
fa97b924 GFT |
777 | memset(rxring->bufinf, 0, |
778 | sizeof(struct jme_buffer_info) * jme->rx_ring_size); | |
cd0ff491 GFT |
779 | for (i = 0 ; i < jme->rx_ring_size ; ++i) { |
780 | if (unlikely(jme_make_new_rx_buf(jme, i))) { | |
3bf61c55 GFT |
781 | jme_free_rx_resources(jme); |
782 | return -ENOMEM; | |
783 | } | |
d7699f87 GFT |
784 | |
785 | jme_set_clean_rxdesc(jme, i); | |
786 | } | |
787 | ||
d7699f87 | 788 | return 0; |
fa97b924 GFT |
789 | |
790 | err_free_rxring: | |
791 | dma_free_coherent(&(jme->pdev->dev), | |
792 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), | |
793 | rxring->alloc, | |
794 | rxring->dmaalloc); | |
795 | err_set_null: | |
796 | rxring->desc = NULL; | |
797 | rxring->dmaalloc = 0; | |
798 | rxring->dma = 0; | |
799 | rxring->bufinf = NULL; | |
800 | ||
801 | return -ENOMEM; | |
d7699f87 GFT |
802 | } |
803 | ||
cd0ff491 | 804 | static inline void |
3bf61c55 | 805 | jme_enable_rx_engine(struct jme_adapter *jme) |
d7699f87 | 806 | { |
cd0ff491 GFT |
807 | /* |
808 | * Select Queue 0 | |
809 | */ | |
810 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | | |
811 | RXCS_QUEUESEL_Q0); | |
812 | wmb(); | |
813 | ||
d7699f87 GFT |
814 | /* |
815 | * Setup RX DMA Bass Address | |
816 | */ | |
fa97b924 | 817 | jwrite32(jme, JME_RXDBA_LO, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); |
3bf61c55 | 818 | jwrite32(jme, JME_RXDBA_HI, (__u64)(jme->rxring[0].dma) >> 32); |
fa97b924 | 819 | jwrite32(jme, JME_RXNDA, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); |
d7699f87 GFT |
820 | |
821 | /* | |
b3821cc5 | 822 | * Setup RX Descriptor Count |
d7699f87 | 823 | */ |
b3821cc5 | 824 | jwrite32(jme, JME_RXQDC, jme->rx_ring_size); |
d7699f87 | 825 | |
3bf61c55 | 826 | /* |
d7699f87 GFT |
827 | * Setup Unicast Filter |
828 | */ | |
829 | jme_set_multi(jme->dev); | |
830 | ||
831 | /* | |
832 | * Enable RX Engine | |
833 | */ | |
834 | wmb(); | |
79ce639c | 835 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | |
4330c2f2 GFT |
836 | RXCS_QUEUESEL_Q0 | |
837 | RXCS_ENABLE | | |
838 | RXCS_QST); | |
d7699f87 GFT |
839 | } |
840 | ||
cd0ff491 | 841 | static inline void |
3bf61c55 | 842 | jme_restart_rx_engine(struct jme_adapter *jme) |
4330c2f2 GFT |
843 | { |
844 | /* | |
3bf61c55 | 845 | * Start RX Engine |
4330c2f2 | 846 | */ |
79ce639c | 847 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | |
4330c2f2 GFT |
848 | RXCS_QUEUESEL_Q0 | |
849 | RXCS_ENABLE | | |
850 | RXCS_QST); | |
851 | } | |
852 | ||
cd0ff491 | 853 | static inline void |
3bf61c55 | 854 | jme_disable_rx_engine(struct jme_adapter *jme) |
d7699f87 GFT |
855 | { |
856 | int i; | |
cd0ff491 | 857 | u32 val; |
d7699f87 GFT |
858 | |
859 | /* | |
860 | * Disable RX Engine | |
861 | */ | |
29bdd921 | 862 | jwrite32(jme, JME_RXCS, jme->reg_rxcs); |
cd0ff491 | 863 | wmb(); |
d7699f87 GFT |
864 | |
865 | val = jread32(jme, JME_RXCS); | |
cd0ff491 | 866 | for (i = JME_RX_DISABLE_TIMEOUT ; (val & RXCS_ENABLE) && i > 0 ; --i) { |
29bdd921 | 867 | mdelay(1); |
d7699f87 | 868 | val = jread32(jme, JME_RXCS); |
cd0ff491 | 869 | rmb(); |
d7699f87 GFT |
870 | } |
871 | ||
cd0ff491 GFT |
872 | if (!i) |
873 | jeprintk(jme->pdev, "Disable RX engine timeout.\n"); | |
d7699f87 GFT |
874 | |
875 | } | |
876 | ||
192570e0 | 877 | static int |
cd0ff491 | 878 | jme_rxsum_ok(struct jme_adapter *jme, u16 flags) |
192570e0 | 879 | { |
cd0ff491 | 880 | if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4))) |
192570e0 GFT |
881 | return false; |
882 | ||
fa97b924 GFT |
883 | if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_TCPON | RXWBFLAG_TCPCS)) |
884 | == RXWBFLAG_TCPON)) { | |
885 | if (flags & RXWBFLAG_IPV4) | |
c97b5740 | 886 | netif_err(jme, rx_err, jme->dev, "TCP Checksum error\n"); |
fa97b924 | 887 | return false; |
192570e0 GFT |
888 | } |
889 | ||
fa97b924 GFT |
890 | if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_UDPON | RXWBFLAG_UDPCS)) |
891 | == RXWBFLAG_UDPON)) { | |
892 | if (flags & RXWBFLAG_IPV4) | |
c97b5740 | 893 | netif_err(jme, rx_err, jme->dev, "UDP Checksum error.\n"); |
fa97b924 | 894 | return false; |
192570e0 GFT |
895 | } |
896 | ||
fa97b924 GFT |
897 | if (unlikely((flags & (RXWBFLAG_IPV4 | RXWBFLAG_IPCS)) |
898 | == RXWBFLAG_IPV4)) { | |
c97b5740 | 899 | netif_err(jme, rx_err, jme->dev, "IPv4 Checksum error.\n"); |
fa97b924 | 900 | return false; |
192570e0 GFT |
901 | } |
902 | ||
903 | return true; | |
904 | } | |
905 | ||
3bf61c55 | 906 | static void |
42b1055e | 907 | jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx) |
d7699f87 | 908 | { |
d7699f87 | 909 | struct jme_ring *rxring = &(jme->rxring[0]); |
cd0ff491 | 910 | struct rxdesc *rxdesc = rxring->desc; |
3bf61c55 | 911 | struct jme_buffer_info *rxbi = rxring->bufinf; |
d7699f87 | 912 | struct sk_buff *skb; |
3bf61c55 | 913 | int framesize; |
d7699f87 | 914 | |
3bf61c55 GFT |
915 | rxdesc += idx; |
916 | rxbi += idx; | |
d7699f87 | 917 | |
3bf61c55 GFT |
918 | skb = rxbi->skb; |
919 | pci_dma_sync_single_for_cpu(jme->pdev, | |
920 | rxbi->mapping, | |
921 | rxbi->len, | |
922 | PCI_DMA_FROMDEVICE); | |
923 | ||
cd0ff491 | 924 | if (unlikely(jme_make_new_rx_buf(jme, idx))) { |
3bf61c55 GFT |
925 | pci_dma_sync_single_for_device(jme->pdev, |
926 | rxbi->mapping, | |
927 | rxbi->len, | |
928 | PCI_DMA_FROMDEVICE); | |
929 | ||
930 | ++(NET_STAT(jme).rx_dropped); | |
cd0ff491 | 931 | } else { |
3bf61c55 GFT |
932 | framesize = le16_to_cpu(rxdesc->descwb.framesize) |
933 | - RX_PREPAD_SIZE; | |
934 | ||
935 | skb_reserve(skb, RX_PREPAD_SIZE); | |
936 | skb_put(skb, framesize); | |
937 | skb->protocol = eth_type_trans(skb, jme->dev); | |
938 | ||
94c5ea02 | 939 | if (jme_rxsum_ok(jme, le16_to_cpu(rxdesc->descwb.flags))) |
8c198884 | 940 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
29bdd921 GFT |
941 | else |
942 | skb->ip_summed = CHECKSUM_NONE; | |
8c198884 | 943 | |
94c5ea02 | 944 | if (rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_TAGON)) { |
cd0ff491 | 945 | if (jme->vlgrp) { |
cdcdc9eb | 946 | jme->jme_vlan_rx(skb, jme->vlgrp, |
94c5ea02 | 947 | le16_to_cpu(rxdesc->descwb.vlan)); |
b3821cc5 | 948 | NET_STAT(jme).rx_bytes += 4; |
c97b5740 | 949 | } else { |
c97b5740 | 950 | dev_kfree_skb(skb); |
b3821cc5 | 951 | } |
cd0ff491 | 952 | } else { |
cdcdc9eb | 953 | jme->jme_rx(skb); |
b3821cc5 | 954 | } |
3bf61c55 | 955 | |
94c5ea02 GFT |
956 | if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_DEST)) == |
957 | cpu_to_le16(RXWBFLAG_DEST_MUL)) | |
3bf61c55 GFT |
958 | ++(NET_STAT(jme).multicast); |
959 | ||
3bf61c55 GFT |
960 | NET_STAT(jme).rx_bytes += framesize; |
961 | ++(NET_STAT(jme).rx_packets); | |
962 | } | |
963 | ||
964 | jme_set_clean_rxdesc(jme, idx); | |
965 | ||
966 | } | |
967 | ||
968 | static int | |
969 | jme_process_receive(struct jme_adapter *jme, int limit) | |
970 | { | |
971 | struct jme_ring *rxring = &(jme->rxring[0]); | |
cd0ff491 | 972 | struct rxdesc *rxdesc = rxring->desc; |
b3821cc5 | 973 | int i, j, ccnt, desccnt, mask = jme->rx_ring_mask; |
3bf61c55 | 974 | |
cd0ff491 | 975 | if (unlikely(!atomic_dec_and_test(&jme->rx_cleaning))) |
192570e0 GFT |
976 | goto out_inc; |
977 | ||
cd0ff491 | 978 | if (unlikely(atomic_read(&jme->link_changing) != 1)) |
192570e0 GFT |
979 | goto out_inc; |
980 | ||
cd0ff491 | 981 | if (unlikely(!netif_carrier_ok(jme->dev))) |
192570e0 GFT |
982 | goto out_inc; |
983 | ||
cdcdc9eb | 984 | i = atomic_read(&rxring->next_to_clean); |
fa97b924 | 985 | while (limit > 0) { |
3bf61c55 GFT |
986 | rxdesc = rxring->desc; |
987 | rxdesc += i; | |
988 | ||
94c5ea02 | 989 | if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_OWN)) || |
3bf61c55 GFT |
990 | !(rxdesc->descwb.desccnt & RXWBDCNT_WBCPL)) |
991 | goto out; | |
fa97b924 | 992 | --limit; |
d7699f87 | 993 | |
4330c2f2 GFT |
994 | desccnt = rxdesc->descwb.desccnt & RXWBDCNT_DCNT; |
995 | ||
cd0ff491 | 996 | if (unlikely(desccnt > 1 || |
192570e0 | 997 | rxdesc->descwb.errstat & RXWBERR_ALLERR)) { |
d7699f87 | 998 | |
cd0ff491 | 999 | if (rxdesc->descwb.errstat & RXWBERR_CRCERR) |
3bf61c55 | 1000 | ++(NET_STAT(jme).rx_crc_errors); |
cd0ff491 | 1001 | else if (rxdesc->descwb.errstat & RXWBERR_OVERUN) |
3bf61c55 GFT |
1002 | ++(NET_STAT(jme).rx_fifo_errors); |
1003 | else | |
1004 | ++(NET_STAT(jme).rx_errors); | |
4330c2f2 | 1005 | |
cd0ff491 | 1006 | if (desccnt > 1) |
3bf61c55 | 1007 | limit -= desccnt - 1; |
4330c2f2 | 1008 | |
cd0ff491 | 1009 | for (j = i, ccnt = desccnt ; ccnt-- ; ) { |
4330c2f2 | 1010 | jme_set_clean_rxdesc(jme, j); |
b3821cc5 | 1011 | j = (j + 1) & (mask); |
4330c2f2 | 1012 | } |
3bf61c55 | 1013 | |
cd0ff491 | 1014 | } else { |
42b1055e | 1015 | jme_alloc_and_feed_skb(jme, i); |
3bf61c55 | 1016 | } |
4330c2f2 | 1017 | |
b3821cc5 | 1018 | i = (i + desccnt) & (mask); |
3bf61c55 | 1019 | } |
4330c2f2 | 1020 | |
3bf61c55 | 1021 | out: |
cdcdc9eb | 1022 | atomic_set(&rxring->next_to_clean, i); |
4330c2f2 | 1023 | |
192570e0 GFT |
1024 | out_inc: |
1025 | atomic_inc(&jme->rx_cleaning); | |
1026 | ||
3bf61c55 | 1027 | return limit > 0 ? limit : 0; |
4330c2f2 | 1028 | |
3bf61c55 | 1029 | } |
d7699f87 | 1030 | |
79ce639c GFT |
1031 | static void |
1032 | jme_attempt_pcc(struct dynpcc_info *dpi, int atmp) | |
1033 | { | |
cd0ff491 | 1034 | if (likely(atmp == dpi->cur)) { |
192570e0 | 1035 | dpi->cnt = 0; |
79ce639c | 1036 | return; |
192570e0 | 1037 | } |
79ce639c | 1038 | |
cd0ff491 | 1039 | if (dpi->attempt == atmp) { |
79ce639c | 1040 | ++(dpi->cnt); |
cd0ff491 | 1041 | } else { |
79ce639c GFT |
1042 | dpi->attempt = atmp; |
1043 | dpi->cnt = 0; | |
1044 | } | |
1045 | ||
1046 | } | |
1047 | ||
1048 | static void | |
1049 | jme_dynamic_pcc(struct jme_adapter *jme) | |
1050 | { | |
1051 | register struct dynpcc_info *dpi = &(jme->dpi); | |
1052 | ||
cd0ff491 | 1053 | if ((NET_STAT(jme).rx_bytes - dpi->last_bytes) > PCC_P3_THRESHOLD) |
79ce639c | 1054 | jme_attempt_pcc(dpi, PCC_P3); |
c97b5740 GFT |
1055 | else if ((NET_STAT(jme).rx_packets - dpi->last_pkts) > PCC_P2_THRESHOLD || |
1056 | dpi->intr_cnt > PCC_INTR_THRESHOLD) | |
79ce639c GFT |
1057 | jme_attempt_pcc(dpi, PCC_P2); |
1058 | else | |
1059 | jme_attempt_pcc(dpi, PCC_P1); | |
1060 | ||
cd0ff491 GFT |
1061 | if (unlikely(dpi->attempt != dpi->cur && dpi->cnt > 5)) { |
1062 | if (dpi->attempt < dpi->cur) | |
1063 | tasklet_schedule(&jme->rxclean_task); | |
79ce639c GFT |
1064 | jme_set_rx_pcc(jme, dpi->attempt); |
1065 | dpi->cur = dpi->attempt; | |
1066 | dpi->cnt = 0; | |
1067 | } | |
1068 | } | |
1069 | ||
1070 | static void | |
1071 | jme_start_pcc_timer(struct jme_adapter *jme) | |
1072 | { | |
1073 | struct dynpcc_info *dpi = &(jme->dpi); | |
1074 | dpi->last_bytes = NET_STAT(jme).rx_bytes; | |
1075 | dpi->last_pkts = NET_STAT(jme).rx_packets; | |
1076 | dpi->intr_cnt = 0; | |
1077 | jwrite32(jme, JME_TMCSR, | |
1078 | TMCSR_EN | ((0xFFFFFF - PCC_INTERVAL_US) & TMCSR_CNT)); | |
1079 | } | |
1080 | ||
cd0ff491 | 1081 | static inline void |
29bdd921 GFT |
1082 | jme_stop_pcc_timer(struct jme_adapter *jme) |
1083 | { | |
1084 | jwrite32(jme, JME_TMCSR, 0); | |
1085 | } | |
1086 | ||
cd0ff491 GFT |
1087 | static void |
1088 | jme_shutdown_nic(struct jme_adapter *jme) | |
1089 | { | |
1090 | u32 phylink; | |
1091 | ||
1092 | phylink = jme_linkstat_from_phy(jme); | |
1093 | ||
1094 | if (!(phylink & PHY_LINK_UP)) { | |
1095 | /* | |
1096 | * Disable all interrupt before issue timer | |
1097 | */ | |
1098 | jme_stop_irq(jme); | |
1099 | jwrite32(jme, JME_TIMER2, TMCSR_EN | 0xFFFFFE); | |
1100 | } | |
1101 | } | |
1102 | ||
79ce639c GFT |
1103 | static void |
1104 | jme_pcc_tasklet(unsigned long arg) | |
1105 | { | |
cd0ff491 | 1106 | struct jme_adapter *jme = (struct jme_adapter *)arg; |
79ce639c GFT |
1107 | struct net_device *netdev = jme->dev; |
1108 | ||
cd0ff491 GFT |
1109 | if (unlikely(test_bit(JME_FLAG_SHUTDOWN, &jme->flags))) { |
1110 | jme_shutdown_nic(jme); | |
1111 | return; | |
1112 | } | |
29bdd921 | 1113 | |
cd0ff491 | 1114 | if (unlikely(!netif_carrier_ok(netdev) || |
29bdd921 GFT |
1115 | (atomic_read(&jme->link_changing) != 1) |
1116 | )) { | |
1117 | jme_stop_pcc_timer(jme); | |
79ce639c GFT |
1118 | return; |
1119 | } | |
29bdd921 | 1120 | |
cd0ff491 | 1121 | if (!(test_bit(JME_FLAG_POLL, &jme->flags))) |
192570e0 GFT |
1122 | jme_dynamic_pcc(jme); |
1123 | ||
79ce639c GFT |
1124 | jme_start_pcc_timer(jme); |
1125 | } | |
1126 | ||
cd0ff491 | 1127 | static inline void |
192570e0 GFT |
1128 | jme_polling_mode(struct jme_adapter *jme) |
1129 | { | |
1130 | jme_set_rx_pcc(jme, PCC_OFF); | |
1131 | } | |
1132 | ||
cd0ff491 | 1133 | static inline void |
192570e0 GFT |
1134 | jme_interrupt_mode(struct jme_adapter *jme) |
1135 | { | |
1136 | jme_set_rx_pcc(jme, PCC_P1); | |
1137 | } | |
1138 | ||
cd0ff491 GFT |
1139 | static inline int |
1140 | jme_pseudo_hotplug_enabled(struct jme_adapter *jme) | |
1141 | { | |
1142 | u32 apmc; | |
1143 | apmc = jread32(jme, JME_APMC); | |
1144 | return apmc & JME_APMC_PSEUDO_HP_EN; | |
1145 | } | |
1146 | ||
1147 | static void | |
1148 | jme_start_shutdown_timer(struct jme_adapter *jme) | |
1149 | { | |
1150 | u32 apmc; | |
1151 | ||
1152 | apmc = jread32(jme, JME_APMC) | JME_APMC_PCIE_SD_EN; | |
1153 | apmc &= ~JME_APMC_EPIEN_CTRL; | |
1154 | if (!no_extplug) { | |
1155 | jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_EN); | |
1156 | wmb(); | |
1157 | } | |
1158 | jwrite32f(jme, JME_APMC, apmc); | |
1159 | ||
1160 | jwrite32f(jme, JME_TIMER2, 0); | |
1161 | set_bit(JME_FLAG_SHUTDOWN, &jme->flags); | |
1162 | jwrite32(jme, JME_TMCSR, | |
1163 | TMCSR_EN | ((0xFFFFFF - APMC_PHP_SHUTDOWN_DELAY) & TMCSR_CNT)); | |
1164 | } | |
1165 | ||
1166 | static void | |
1167 | jme_stop_shutdown_timer(struct jme_adapter *jme) | |
1168 | { | |
1169 | u32 apmc; | |
1170 | ||
1171 | jwrite32f(jme, JME_TMCSR, 0); | |
1172 | jwrite32f(jme, JME_TIMER2, 0); | |
1173 | clear_bit(JME_FLAG_SHUTDOWN, &jme->flags); | |
1174 | ||
1175 | apmc = jread32(jme, JME_APMC); | |
1176 | apmc &= ~(JME_APMC_PCIE_SD_EN | JME_APMC_EPIEN_CTRL); | |
1177 | jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_DIS); | |
1178 | wmb(); | |
1179 | jwrite32f(jme, JME_APMC, apmc); | |
1180 | } | |
1181 | ||
3bf61c55 GFT |
1182 | static void |
1183 | jme_link_change_tasklet(unsigned long arg) | |
1184 | { | |
cd0ff491 | 1185 | struct jme_adapter *jme = (struct jme_adapter *)arg; |
fcf45b4c | 1186 | struct net_device *netdev = jme->dev; |
fcf45b4c GFT |
1187 | int rc; |
1188 | ||
cd0ff491 GFT |
1189 | while (!atomic_dec_and_test(&jme->link_changing)) { |
1190 | atomic_inc(&jme->link_changing); | |
c97b5740 | 1191 | netif_info(jme, intr, jme->dev, "Get link change lock failed.\n"); |
e882564f | 1192 | while (atomic_read(&jme->link_changing) != 1) |
c97b5740 | 1193 | netif_info(jme, intr, jme->dev, "Waiting link change lock.\n"); |
cd0ff491 | 1194 | } |
fcf45b4c | 1195 | |
cd0ff491 | 1196 | if (jme_check_link(netdev, 1) && jme->old_mtu == netdev->mtu) |
fcf45b4c GFT |
1197 | goto out; |
1198 | ||
29bdd921 | 1199 | jme->old_mtu = netdev->mtu; |
fcf45b4c | 1200 | netif_stop_queue(netdev); |
cd0ff491 GFT |
1201 | if (jme_pseudo_hotplug_enabled(jme)) |
1202 | jme_stop_shutdown_timer(jme); | |
1203 | ||
1204 | jme_stop_pcc_timer(jme); | |
1205 | tasklet_disable(&jme->txclean_task); | |
1206 | tasklet_disable(&jme->rxclean_task); | |
1207 | tasklet_disable(&jme->rxempty_task); | |
1208 | ||
1209 | if (netif_carrier_ok(netdev)) { | |
1210 | jme_reset_ghc_speed(jme); | |
1211 | jme_disable_rx_engine(jme); | |
1212 | jme_disable_tx_engine(jme); | |
fcf45b4c GFT |
1213 | jme_reset_mac_processor(jme); |
1214 | jme_free_rx_resources(jme); | |
1215 | jme_free_tx_resources(jme); | |
192570e0 | 1216 | |
cd0ff491 | 1217 | if (test_bit(JME_FLAG_POLL, &jme->flags)) |
192570e0 | 1218 | jme_polling_mode(jme); |
cd0ff491 GFT |
1219 | |
1220 | netif_carrier_off(netdev); | |
fcf45b4c GFT |
1221 | } |
1222 | ||
1223 | jme_check_link(netdev, 0); | |
cd0ff491 | 1224 | if (netif_carrier_ok(netdev)) { |
fcf45b4c | 1225 | rc = jme_setup_rx_resources(jme); |
cd0ff491 GFT |
1226 | if (rc) { |
1227 | jeprintk(jme->pdev, "Allocating resources for RX error" | |
fcf45b4c | 1228 | ", Device STOPPED!\n"); |
cd0ff491 | 1229 | goto out_enable_tasklet; |
fcf45b4c GFT |
1230 | } |
1231 | ||
fcf45b4c | 1232 | rc = jme_setup_tx_resources(jme); |
cd0ff491 GFT |
1233 | if (rc) { |
1234 | jeprintk(jme->pdev, "Allocating resources for TX error" | |
fcf45b4c GFT |
1235 | ", Device STOPPED!\n"); |
1236 | goto err_out_free_rx_resources; | |
1237 | } | |
1238 | ||
1239 | jme_enable_rx_engine(jme); | |
1240 | jme_enable_tx_engine(jme); | |
1241 | ||
1242 | netif_start_queue(netdev); | |
192570e0 | 1243 | |
cd0ff491 | 1244 | if (test_bit(JME_FLAG_POLL, &jme->flags)) |
192570e0 | 1245 | jme_interrupt_mode(jme); |
192570e0 | 1246 | |
79ce639c | 1247 | jme_start_pcc_timer(jme); |
cd0ff491 GFT |
1248 | } else if (jme_pseudo_hotplug_enabled(jme)) { |
1249 | jme_start_shutdown_timer(jme); | |
fcf45b4c GFT |
1250 | } |
1251 | ||
cd0ff491 | 1252 | goto out_enable_tasklet; |
fcf45b4c GFT |
1253 | |
1254 | err_out_free_rx_resources: | |
1255 | jme_free_rx_resources(jme); | |
cd0ff491 GFT |
1256 | out_enable_tasklet: |
1257 | tasklet_enable(&jme->txclean_task); | |
1258 | tasklet_hi_enable(&jme->rxclean_task); | |
1259 | tasklet_hi_enable(&jme->rxempty_task); | |
fcf45b4c GFT |
1260 | out: |
1261 | atomic_inc(&jme->link_changing); | |
3bf61c55 | 1262 | } |
d7699f87 | 1263 | |
3bf61c55 GFT |
1264 | static void |
1265 | jme_rx_clean_tasklet(unsigned long arg) | |
1266 | { | |
cd0ff491 | 1267 | struct jme_adapter *jme = (struct jme_adapter *)arg; |
79ce639c | 1268 | struct dynpcc_info *dpi = &(jme->dpi); |
d7699f87 | 1269 | |
192570e0 GFT |
1270 | jme_process_receive(jme, jme->rx_ring_size); |
1271 | ++(dpi->intr_cnt); | |
42b1055e | 1272 | |
192570e0 | 1273 | } |
fcf45b4c | 1274 | |
192570e0 | 1275 | static int |
cdcdc9eb | 1276 | jme_poll(JME_NAPI_HOLDER(holder), JME_NAPI_WEIGHT(budget)) |
192570e0 | 1277 | { |
cdcdc9eb | 1278 | struct jme_adapter *jme = jme_napi_priv(holder); |
192570e0 | 1279 | int rest; |
fcf45b4c | 1280 | |
cdcdc9eb | 1281 | rest = jme_process_receive(jme, JME_NAPI_WEIGHT_VAL(budget)); |
fcf45b4c | 1282 | |
cd0ff491 | 1283 | while (atomic_read(&jme->rx_empty) > 0) { |
cdcdc9eb | 1284 | atomic_dec(&jme->rx_empty); |
192570e0 GFT |
1285 | ++(NET_STAT(jme).rx_dropped); |
1286 | jme_restart_rx_engine(jme); | |
1287 | } | |
1288 | atomic_inc(&jme->rx_empty); | |
1289 | ||
cd0ff491 | 1290 | if (rest) { |
cdcdc9eb | 1291 | JME_RX_COMPLETE(netdev, holder); |
192570e0 GFT |
1292 | jme_interrupt_mode(jme); |
1293 | } | |
1294 | ||
cdcdc9eb GFT |
1295 | JME_NAPI_WEIGHT_SET(budget, rest); |
1296 | return JME_NAPI_WEIGHT_VAL(budget) - rest; | |
fcf45b4c GFT |
1297 | } |
1298 | ||
1299 | static void | |
1300 | jme_rx_empty_tasklet(unsigned long arg) | |
1301 | { | |
cd0ff491 | 1302 | struct jme_adapter *jme = (struct jme_adapter *)arg; |
fcf45b4c | 1303 | |
cd0ff491 | 1304 | if (unlikely(atomic_read(&jme->link_changing) != 1)) |
fcf45b4c GFT |
1305 | return; |
1306 | ||
cd0ff491 | 1307 | if (unlikely(!netif_carrier_ok(jme->dev))) |
fcf45b4c GFT |
1308 | return; |
1309 | ||
c97b5740 | 1310 | netif_info(jme, rx_status, jme->dev, "RX Queue Full!\n"); |
29bdd921 | 1311 | |
fcf45b4c | 1312 | jme_rx_clean_tasklet(arg); |
cdcdc9eb | 1313 | |
cd0ff491 | 1314 | while (atomic_read(&jme->rx_empty) > 0) { |
cdcdc9eb GFT |
1315 | atomic_dec(&jme->rx_empty); |
1316 | ++(NET_STAT(jme).rx_dropped); | |
1317 | jme_restart_rx_engine(jme); | |
1318 | } | |
1319 | atomic_inc(&jme->rx_empty); | |
4330c2f2 GFT |
1320 | } |
1321 | ||
b3821cc5 GFT |
1322 | static void |
1323 | jme_wake_queue_if_stopped(struct jme_adapter *jme) | |
1324 | { | |
fa97b924 | 1325 | struct jme_ring *txring = &(jme->txring[0]); |
b3821cc5 GFT |
1326 | |
1327 | smp_wmb(); | |
cd0ff491 | 1328 | if (unlikely(netif_queue_stopped(jme->dev) && |
b3821cc5 | 1329 | atomic_read(&txring->nr_free) >= (jme->tx_wake_threshold))) { |
c97b5740 | 1330 | netif_info(jme, tx_done, jme->dev, "TX Queue Waked.\n"); |
b3821cc5 | 1331 | netif_wake_queue(jme->dev); |
b3821cc5 GFT |
1332 | } |
1333 | ||
1334 | } | |
1335 | ||
3bf61c55 GFT |
1336 | static void |
1337 | jme_tx_clean_tasklet(unsigned long arg) | |
4330c2f2 | 1338 | { |
cd0ff491 | 1339 | struct jme_adapter *jme = (struct jme_adapter *)arg; |
3bf61c55 | 1340 | struct jme_ring *txring = &(jme->txring[0]); |
cd0ff491 | 1341 | struct txdesc *txdesc = txring->desc; |
3bf61c55 | 1342 | struct jme_buffer_info *txbi = txring->bufinf, *ctxbi, *ttxbi; |
b3821cc5 | 1343 | int i, j, cnt = 0, max, err, mask; |
3bf61c55 | 1344 | |
cd0ff491 GFT |
1345 | tx_dbg(jme, "Into txclean.\n"); |
1346 | ||
1347 | if (unlikely(!atomic_dec_and_test(&jme->tx_cleaning))) | |
fcf45b4c GFT |
1348 | goto out; |
1349 | ||
cd0ff491 | 1350 | if (unlikely(atomic_read(&jme->link_changing) != 1)) |
fcf45b4c GFT |
1351 | goto out; |
1352 | ||
cd0ff491 | 1353 | if (unlikely(!netif_carrier_ok(jme->dev))) |
fcf45b4c GFT |
1354 | goto out; |
1355 | ||
b3821cc5 GFT |
1356 | max = jme->tx_ring_size - atomic_read(&txring->nr_free); |
1357 | mask = jme->tx_ring_mask; | |
3bf61c55 | 1358 | |
cd0ff491 | 1359 | for (i = atomic_read(&txring->next_to_clean) ; cnt < max ; ) { |
3bf61c55 GFT |
1360 | |
1361 | ctxbi = txbi + i; | |
1362 | ||
cd0ff491 | 1363 | if (likely(ctxbi->skb && |
b3821cc5 | 1364 | !(txdesc[i].descwb.flags & TXWBFLAG_OWN))) { |
8c198884 | 1365 | |
cd0ff491 GFT |
1366 | tx_dbg(jme, "txclean: %d+%d@%lu\n", |
1367 | i, ctxbi->nr_desc, jiffies); | |
3bf61c55 | 1368 | |
cd0ff491 | 1369 | err = txdesc[i].descwb.flags & TXWBFLAG_ALLERR; |
3bf61c55 | 1370 | |
cd0ff491 | 1371 | for (j = 1 ; j < ctxbi->nr_desc ; ++j) { |
b3821cc5 GFT |
1372 | ttxbi = txbi + ((i + j) & (mask)); |
1373 | txdesc[(i + j) & (mask)].dw[0] = 0; | |
3bf61c55 | 1374 | |
b3821cc5 | 1375 | pci_unmap_page(jme->pdev, |
3bf61c55 GFT |
1376 | ttxbi->mapping, |
1377 | ttxbi->len, | |
1378 | PCI_DMA_TODEVICE); | |
1379 | ||
3bf61c55 GFT |
1380 | ttxbi->mapping = 0; |
1381 | ttxbi->len = 0; | |
1382 | } | |
1383 | ||
1384 | dev_kfree_skb(ctxbi->skb); | |
3bf61c55 GFT |
1385 | |
1386 | cnt += ctxbi->nr_desc; | |
1387 | ||
cd0ff491 | 1388 | if (unlikely(err)) { |
8c198884 | 1389 | ++(NET_STAT(jme).tx_carrier_errors); |
cd0ff491 | 1390 | } else { |
8c198884 | 1391 | ++(NET_STAT(jme).tx_packets); |
b3821cc5 GFT |
1392 | NET_STAT(jme).tx_bytes += ctxbi->len; |
1393 | } | |
1394 | ||
1395 | ctxbi->skb = NULL; | |
1396 | ctxbi->len = 0; | |
cdcdc9eb | 1397 | ctxbi->start_xmit = 0; |
cd0ff491 GFT |
1398 | |
1399 | } else { | |
3bf61c55 GFT |
1400 | break; |
1401 | } | |
1402 | ||
b3821cc5 | 1403 | i = (i + ctxbi->nr_desc) & mask; |
3bf61c55 GFT |
1404 | |
1405 | ctxbi->nr_desc = 0; | |
d7699f87 GFT |
1406 | } |
1407 | ||
cd0ff491 | 1408 | tx_dbg(jme, "txclean: done %d@%lu.\n", i, jiffies); |
cdcdc9eb | 1409 | atomic_set(&txring->next_to_clean, i); |
79ce639c | 1410 | atomic_add(cnt, &txring->nr_free); |
3bf61c55 | 1411 | |
b3821cc5 GFT |
1412 | jme_wake_queue_if_stopped(jme); |
1413 | ||
fcf45b4c GFT |
1414 | out: |
1415 | atomic_inc(&jme->tx_cleaning); | |
d7699f87 GFT |
1416 | } |
1417 | ||
79ce639c | 1418 | static void |
cd0ff491 | 1419 | jme_intr_msi(struct jme_adapter *jme, u32 intrstat) |
d7699f87 | 1420 | { |
3bf61c55 GFT |
1421 | /* |
1422 | * Disable interrupt | |
1423 | */ | |
1424 | jwrite32f(jme, JME_IENC, INTR_ENABLE); | |
d7699f87 | 1425 | |
cd0ff491 | 1426 | if (intrstat & (INTR_LINKCH | INTR_SWINTR)) { |
47220951 GFT |
1427 | /* |
1428 | * Link change event is critical | |
1429 | * all other events are ignored | |
1430 | */ | |
1431 | jwrite32(jme, JME_IEVE, intrstat); | |
3bf61c55 | 1432 | tasklet_schedule(&jme->linkch_task); |
29bdd921 | 1433 | goto out_reenable; |
fcf45b4c | 1434 | } |
d7699f87 | 1435 | |
cd0ff491 | 1436 | if (intrstat & INTR_TMINTR) { |
47220951 | 1437 | jwrite32(jme, JME_IEVE, INTR_TMINTR); |
79ce639c | 1438 | tasklet_schedule(&jme->pcc_task); |
47220951 | 1439 | } |
79ce639c | 1440 | |
cd0ff491 | 1441 | if (intrstat & (INTR_PCCTXTO | INTR_PCCTX)) { |
47220951 | 1442 | jwrite32(jme, JME_IEVE, INTR_PCCTXTO | INTR_PCCTX | INTR_TX0); |
4330c2f2 | 1443 | tasklet_schedule(&jme->txclean_task); |
47220951 GFT |
1444 | } |
1445 | ||
cd0ff491 | 1446 | if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { |
47220951 GFT |
1447 | jwrite32(jme, JME_IEVE, (intrstat & (INTR_PCCRX0TO | |
1448 | INTR_PCCRX0 | | |
1449 | INTR_RX0EMP)) | | |
1450 | INTR_RX0); | |
1451 | } | |
d7699f87 | 1452 | |
cd0ff491 GFT |
1453 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { |
1454 | if (intrstat & INTR_RX0EMP) | |
192570e0 GFT |
1455 | atomic_inc(&jme->rx_empty); |
1456 | ||
cd0ff491 GFT |
1457 | if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { |
1458 | if (likely(JME_RX_SCHEDULE_PREP(jme))) { | |
192570e0 | 1459 | jme_polling_mode(jme); |
cdcdc9eb | 1460 | JME_RX_SCHEDULE(jme); |
192570e0 GFT |
1461 | } |
1462 | } | |
cd0ff491 GFT |
1463 | } else { |
1464 | if (intrstat & INTR_RX0EMP) { | |
cdcdc9eb | 1465 | atomic_inc(&jme->rx_empty); |
cd0ff491 GFT |
1466 | tasklet_hi_schedule(&jme->rxempty_task); |
1467 | } else if (intrstat & (INTR_PCCRX0TO | INTR_PCCRX0)) { | |
1468 | tasklet_hi_schedule(&jme->rxclean_task); | |
cdcdc9eb | 1469 | } |
4330c2f2 | 1470 | } |
d7699f87 | 1471 | |
29bdd921 | 1472 | out_reenable: |
3bf61c55 | 1473 | /* |
fcf45b4c | 1474 | * Re-enable interrupt |
3bf61c55 | 1475 | */ |
fcf45b4c | 1476 | jwrite32f(jme, JME_IENS, INTR_ENABLE); |
79ce639c GFT |
1477 | } |
1478 | ||
1479 | static irqreturn_t | |
1480 | jme_intr(int irq, void *dev_id) | |
1481 | { | |
cd0ff491 GFT |
1482 | struct net_device *netdev = dev_id; |
1483 | struct jme_adapter *jme = netdev_priv(netdev); | |
1484 | u32 intrstat; | |
79ce639c GFT |
1485 | |
1486 | intrstat = jread32(jme, JME_IEVE); | |
1487 | ||
1488 | /* | |
1489 | * Check if it's really an interrupt for us | |
1490 | */ | |
9b9d55de | 1491 | if (unlikely((intrstat & INTR_ENABLE) == 0)) |
29bdd921 | 1492 | return IRQ_NONE; |
79ce639c GFT |
1493 | |
1494 | /* | |
1495 | * Check if the device still exist | |
1496 | */ | |
cd0ff491 GFT |
1497 | if (unlikely(intrstat == ~((typeof(intrstat))0))) |
1498 | return IRQ_NONE; | |
79ce639c GFT |
1499 | |
1500 | jme_intr_msi(jme, intrstat); | |
1501 | ||
cd0ff491 | 1502 | return IRQ_HANDLED; |
d7699f87 GFT |
1503 | } |
1504 | ||
79ce639c GFT |
1505 | static irqreturn_t |
1506 | jme_msi(int irq, void *dev_id) | |
1507 | { | |
cd0ff491 GFT |
1508 | struct net_device *netdev = dev_id; |
1509 | struct jme_adapter *jme = netdev_priv(netdev); | |
1510 | u32 intrstat; | |
79ce639c | 1511 | |
fa97b924 | 1512 | intrstat = jread32(jme, JME_IEVE); |
79ce639c GFT |
1513 | |
1514 | jme_intr_msi(jme, intrstat); | |
1515 | ||
cd0ff491 | 1516 | return IRQ_HANDLED; |
79ce639c GFT |
1517 | } |
1518 | ||
79ce639c GFT |
1519 | static void |
1520 | jme_reset_link(struct jme_adapter *jme) | |
1521 | { | |
1522 | jwrite32(jme, JME_TMCSR, TMCSR_SWIT); | |
1523 | } | |
1524 | ||
fcf45b4c GFT |
1525 | static void |
1526 | jme_restart_an(struct jme_adapter *jme) | |
1527 | { | |
cd0ff491 | 1528 | u32 bmcr; |
fcf45b4c | 1529 | |
cd0ff491 | 1530 | spin_lock_bh(&jme->phy_lock); |
fcf45b4c GFT |
1531 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); |
1532 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
1533 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr); | |
cd0ff491 | 1534 | spin_unlock_bh(&jme->phy_lock); |
79ce639c GFT |
1535 | } |
1536 | ||
1537 | static int | |
1538 | jme_request_irq(struct jme_adapter *jme) | |
1539 | { | |
1540 | int rc; | |
cd0ff491 GFT |
1541 | struct net_device *netdev = jme->dev; |
1542 | irq_handler_t handler = jme_intr; | |
1543 | int irq_flags = IRQF_SHARED; | |
1544 | ||
1545 | if (!pci_enable_msi(jme->pdev)) { | |
1546 | set_bit(JME_FLAG_MSI, &jme->flags); | |
1547 | handler = jme_msi; | |
1548 | irq_flags = 0; | |
1549 | } | |
1550 | ||
1551 | rc = request_irq(jme->pdev->irq, handler, irq_flags, netdev->name, | |
1552 | netdev); | |
1553 | if (rc) { | |
1554 | jeprintk(jme->pdev, | |
b3821cc5 | 1555 | "Unable to request %s interrupt (return: %d)\n", |
cd0ff491 GFT |
1556 | test_bit(JME_FLAG_MSI, &jme->flags) ? "MSI" : "INTx", |
1557 | rc); | |
79ce639c | 1558 | |
cd0ff491 GFT |
1559 | if (test_bit(JME_FLAG_MSI, &jme->flags)) { |
1560 | pci_disable_msi(jme->pdev); | |
1561 | clear_bit(JME_FLAG_MSI, &jme->flags); | |
79ce639c | 1562 | } |
cd0ff491 | 1563 | } else { |
79ce639c GFT |
1564 | netdev->irq = jme->pdev->irq; |
1565 | } | |
1566 | ||
cd0ff491 | 1567 | return rc; |
79ce639c GFT |
1568 | } |
1569 | ||
1570 | static void | |
1571 | jme_free_irq(struct jme_adapter *jme) | |
1572 | { | |
cd0ff491 GFT |
1573 | free_irq(jme->pdev->irq, jme->dev); |
1574 | if (test_bit(JME_FLAG_MSI, &jme->flags)) { | |
1575 | pci_disable_msi(jme->pdev); | |
1576 | clear_bit(JME_FLAG_MSI, &jme->flags); | |
79ce639c | 1577 | jme->dev->irq = jme->pdev->irq; |
cd0ff491 | 1578 | } |
fcf45b4c GFT |
1579 | } |
1580 | ||
3bf61c55 GFT |
1581 | static int |
1582 | jme_open(struct net_device *netdev) | |
d7699f87 GFT |
1583 | { |
1584 | struct jme_adapter *jme = netdev_priv(netdev); | |
cd0ff491 | 1585 | int rc; |
79ce639c | 1586 | |
42b1055e | 1587 | jme_clear_pm(jme); |
cdcdc9eb | 1588 | JME_NAPI_ENABLE(jme); |
d7699f87 | 1589 | |
fa97b924 | 1590 | tasklet_enable(&jme->linkch_task); |
cd0ff491 GFT |
1591 | tasklet_enable(&jme->txclean_task); |
1592 | tasklet_hi_enable(&jme->rxclean_task); | |
1593 | tasklet_hi_enable(&jme->rxempty_task); | |
1594 | ||
79ce639c | 1595 | rc = jme_request_irq(jme); |
cd0ff491 | 1596 | if (rc) |
4330c2f2 | 1597 | goto err_out; |
79ce639c | 1598 | |
d7699f87 | 1599 | jme_start_irq(jme); |
42b1055e | 1600 | |
cd0ff491 | 1601 | if (test_bit(JME_FLAG_SSET, &jme->flags)) |
42b1055e GFT |
1602 | jme_set_settings(netdev, &jme->old_ecmd); |
1603 | else | |
1604 | jme_reset_phy_processor(jme); | |
1605 | ||
29bdd921 | 1606 | jme_reset_link(jme); |
d7699f87 GFT |
1607 | |
1608 | return 0; | |
1609 | ||
d7699f87 GFT |
1610 | err_out: |
1611 | netif_stop_queue(netdev); | |
1612 | netif_carrier_off(netdev); | |
4330c2f2 | 1613 | return rc; |
d7699f87 GFT |
1614 | } |
1615 | ||
9b9d55de | 1616 | #ifdef CONFIG_PM |
42b1055e GFT |
1617 | static void |
1618 | jme_set_100m_half(struct jme_adapter *jme) | |
1619 | { | |
cd0ff491 | 1620 | u32 bmcr, tmp; |
42b1055e GFT |
1621 | |
1622 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); | |
1623 | tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 | | |
1624 | BMCR_SPEED1000 | BMCR_FULLDPLX); | |
1625 | tmp |= BMCR_SPEED100; | |
1626 | ||
1627 | if (bmcr != tmp) | |
1628 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, tmp); | |
1629 | ||
cd0ff491 | 1630 | if (jme->fpgaver) |
cdcdc9eb GFT |
1631 | jwrite32(jme, JME_GHC, GHC_SPEED_100M | GHC_LINK_POLL); |
1632 | else | |
1633 | jwrite32(jme, JME_GHC, GHC_SPEED_100M); | |
42b1055e GFT |
1634 | } |
1635 | ||
47220951 GFT |
1636 | #define JME_WAIT_LINK_TIME 2000 /* 2000ms */ |
1637 | static void | |
1638 | jme_wait_link(struct jme_adapter *jme) | |
1639 | { | |
cd0ff491 | 1640 | u32 phylink, to = JME_WAIT_LINK_TIME; |
47220951 GFT |
1641 | |
1642 | mdelay(1000); | |
1643 | phylink = jme_linkstat_from_phy(jme); | |
cd0ff491 | 1644 | while (!(phylink & PHY_LINK_UP) && (to -= 10) > 0) { |
47220951 GFT |
1645 | mdelay(10); |
1646 | phylink = jme_linkstat_from_phy(jme); | |
1647 | } | |
1648 | } | |
9b9d55de | 1649 | #endif |
47220951 | 1650 | |
cd0ff491 | 1651 | static inline void |
42b1055e GFT |
1652 | jme_phy_off(struct jme_adapter *jme) |
1653 | { | |
1654 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, BMCR_PDOWN); | |
1655 | } | |
1656 | ||
3bf61c55 GFT |
1657 | static int |
1658 | jme_close(struct net_device *netdev) | |
d7699f87 GFT |
1659 | { |
1660 | struct jme_adapter *jme = netdev_priv(netdev); | |
1661 | ||
1662 | netif_stop_queue(netdev); | |
1663 | netif_carrier_off(netdev); | |
1664 | ||
1665 | jme_stop_irq(jme); | |
79ce639c | 1666 | jme_free_irq(jme); |
d7699f87 | 1667 | |
cdcdc9eb | 1668 | JME_NAPI_DISABLE(jme); |
192570e0 | 1669 | |
fa97b924 GFT |
1670 | tasklet_disable(&jme->linkch_task); |
1671 | tasklet_disable(&jme->txclean_task); | |
1672 | tasklet_disable(&jme->rxclean_task); | |
1673 | tasklet_disable(&jme->rxempty_task); | |
8c198884 | 1674 | |
cd0ff491 GFT |
1675 | jme_reset_ghc_speed(jme); |
1676 | jme_disable_rx_engine(jme); | |
1677 | jme_disable_tx_engine(jme); | |
8c198884 | 1678 | jme_reset_mac_processor(jme); |
d7699f87 GFT |
1679 | jme_free_rx_resources(jme); |
1680 | jme_free_tx_resources(jme); | |
42b1055e | 1681 | jme->phylink = 0; |
b3821cc5 GFT |
1682 | jme_phy_off(jme); |
1683 | ||
1684 | return 0; | |
1685 | } | |
1686 | ||
1687 | static int | |
1688 | jme_alloc_txdesc(struct jme_adapter *jme, | |
1689 | struct sk_buff *skb) | |
1690 | { | |
fa97b924 | 1691 | struct jme_ring *txring = &(jme->txring[0]); |
b3821cc5 GFT |
1692 | int idx, nr_alloc, mask = jme->tx_ring_mask; |
1693 | ||
1694 | idx = txring->next_to_use; | |
1695 | nr_alloc = skb_shinfo(skb)->nr_frags + 2; | |
1696 | ||
cd0ff491 | 1697 | if (unlikely(atomic_read(&txring->nr_free) < nr_alloc)) |
b3821cc5 GFT |
1698 | return -1; |
1699 | ||
1700 | atomic_sub(nr_alloc, &txring->nr_free); | |
42b1055e | 1701 | |
b3821cc5 GFT |
1702 | txring->next_to_use = (txring->next_to_use + nr_alloc) & mask; |
1703 | ||
1704 | return idx; | |
1705 | } | |
1706 | ||
1707 | static void | |
1708 | jme_fill_tx_map(struct pci_dev *pdev, | |
cd0ff491 | 1709 | struct txdesc *txdesc, |
b3821cc5 GFT |
1710 | struct jme_buffer_info *txbi, |
1711 | struct page *page, | |
cd0ff491 GFT |
1712 | u32 page_offset, |
1713 | u32 len, | |
1714 | u8 hidma) | |
b3821cc5 GFT |
1715 | { |
1716 | dma_addr_t dmaaddr; | |
1717 | ||
1718 | dmaaddr = pci_map_page(pdev, | |
1719 | page, | |
1720 | page_offset, | |
1721 | len, | |
1722 | PCI_DMA_TODEVICE); | |
1723 | ||
1724 | pci_dma_sync_single_for_device(pdev, | |
1725 | dmaaddr, | |
1726 | len, | |
1727 | PCI_DMA_TODEVICE); | |
1728 | ||
1729 | txdesc->dw[0] = 0; | |
1730 | txdesc->dw[1] = 0; | |
1731 | txdesc->desc2.flags = TXFLAG_OWN; | |
cd0ff491 | 1732 | txdesc->desc2.flags |= (hidma) ? TXFLAG_64BIT : 0; |
b3821cc5 GFT |
1733 | txdesc->desc2.datalen = cpu_to_le16(len); |
1734 | txdesc->desc2.bufaddrh = cpu_to_le32((__u64)dmaaddr >> 32); | |
1735 | txdesc->desc2.bufaddrl = cpu_to_le32( | |
1736 | (__u64)dmaaddr & 0xFFFFFFFFUL); | |
1737 | ||
1738 | txbi->mapping = dmaaddr; | |
1739 | txbi->len = len; | |
1740 | } | |
1741 | ||
1742 | static void | |
1743 | jme_map_tx_skb(struct jme_adapter *jme, struct sk_buff *skb, int idx) | |
1744 | { | |
fa97b924 | 1745 | struct jme_ring *txring = &(jme->txring[0]); |
cd0ff491 | 1746 | struct txdesc *txdesc = txring->desc, *ctxdesc; |
b3821cc5 | 1747 | struct jme_buffer_info *txbi = txring->bufinf, *ctxbi; |
cd0ff491 | 1748 | u8 hidma = jme->dev->features & NETIF_F_HIGHDMA; |
b3821cc5 GFT |
1749 | int i, nr_frags = skb_shinfo(skb)->nr_frags; |
1750 | int mask = jme->tx_ring_mask; | |
1751 | struct skb_frag_struct *frag; | |
cd0ff491 | 1752 | u32 len; |
b3821cc5 | 1753 | |
cd0ff491 GFT |
1754 | for (i = 0 ; i < nr_frags ; ++i) { |
1755 | frag = &skb_shinfo(skb)->frags[i]; | |
b3821cc5 GFT |
1756 | ctxdesc = txdesc + ((idx + i + 2) & (mask)); |
1757 | ctxbi = txbi + ((idx + i + 2) & (mask)); | |
1758 | ||
1759 | jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, frag->page, | |
1760 | frag->page_offset, frag->size, hidma); | |
42b1055e | 1761 | } |
b3821cc5 | 1762 | |
cd0ff491 | 1763 | len = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len; |
b3821cc5 GFT |
1764 | ctxdesc = txdesc + ((idx + 1) & (mask)); |
1765 | ctxbi = txbi + ((idx + 1) & (mask)); | |
1766 | jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, virt_to_page(skb->data), | |
1767 | offset_in_page(skb->data), len, hidma); | |
1768 | ||
1769 | } | |
1770 | ||
1771 | static int | |
1772 | jme_expand_header(struct jme_adapter *jme, struct sk_buff *skb) | |
1773 | { | |
cd0ff491 | 1774 | if (unlikely(skb_shinfo(skb)->gso_size && |
b3821cc5 GFT |
1775 | skb_header_cloned(skb) && |
1776 | pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) { | |
1777 | dev_kfree_skb(skb); | |
1778 | return -1; | |
1779 | } | |
1780 | ||
1781 | return 0; | |
1782 | } | |
1783 | ||
1784 | static int | |
94c5ea02 | 1785 | jme_tx_tso(struct sk_buff *skb, __le16 *mss, u8 *flags) |
b3821cc5 | 1786 | { |
94c5ea02 | 1787 | *mss = cpu_to_le16(skb_shinfo(skb)->gso_size << TXDESC_MSS_SHIFT); |
cd0ff491 | 1788 | if (*mss) { |
b3821cc5 GFT |
1789 | *flags |= TXFLAG_LSEN; |
1790 | ||
cd0ff491 | 1791 | if (skb->protocol == htons(ETH_P_IP)) { |
b3821cc5 GFT |
1792 | struct iphdr *iph = ip_hdr(skb); |
1793 | ||
1794 | iph->check = 0; | |
cd0ff491 | 1795 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, |
b3821cc5 GFT |
1796 | iph->daddr, 0, |
1797 | IPPROTO_TCP, | |
1798 | 0); | |
cd0ff491 | 1799 | } else { |
b3821cc5 GFT |
1800 | struct ipv6hdr *ip6h = ipv6_hdr(skb); |
1801 | ||
cd0ff491 | 1802 | tcp_hdr(skb)->check = ~csum_ipv6_magic(&ip6h->saddr, |
b3821cc5 GFT |
1803 | &ip6h->daddr, 0, |
1804 | IPPROTO_TCP, | |
1805 | 0); | |
1806 | } | |
1807 | ||
1808 | return 0; | |
1809 | } | |
1810 | ||
1811 | return 1; | |
1812 | } | |
1813 | ||
1814 | static void | |
cd0ff491 | 1815 | jme_tx_csum(struct jme_adapter *jme, struct sk_buff *skb, u8 *flags) |
b3821cc5 | 1816 | { |
cd0ff491 GFT |
1817 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
1818 | u8 ip_proto; | |
b3821cc5 GFT |
1819 | |
1820 | switch (skb->protocol) { | |
cd0ff491 | 1821 | case htons(ETH_P_IP): |
b3821cc5 GFT |
1822 | ip_proto = ip_hdr(skb)->protocol; |
1823 | break; | |
cd0ff491 | 1824 | case htons(ETH_P_IPV6): |
b3821cc5 GFT |
1825 | ip_proto = ipv6_hdr(skb)->nexthdr; |
1826 | break; | |
1827 | default: | |
1828 | ip_proto = 0; | |
1829 | break; | |
1830 | } | |
1831 | ||
cd0ff491 | 1832 | switch (ip_proto) { |
b3821cc5 GFT |
1833 | case IPPROTO_TCP: |
1834 | *flags |= TXFLAG_TCPCS; | |
1835 | break; | |
1836 | case IPPROTO_UDP: | |
1837 | *flags |= TXFLAG_UDPCS; | |
1838 | break; | |
1839 | default: | |
c97b5740 | 1840 | netif_err(jme, tx_err, jme->dev, "Error upper layer protocol.\n"); |
b3821cc5 GFT |
1841 | break; |
1842 | } | |
1843 | } | |
1844 | } | |
1845 | ||
cd0ff491 | 1846 | static inline void |
94c5ea02 | 1847 | jme_tx_vlan(struct sk_buff *skb, __le16 *vlan, u8 *flags) |
b3821cc5 | 1848 | { |
cd0ff491 | 1849 | if (vlan_tx_tag_present(skb)) { |
b3821cc5 | 1850 | *flags |= TXFLAG_TAGON; |
94c5ea02 | 1851 | *vlan = cpu_to_le16(vlan_tx_tag_get(skb)); |
42b1055e | 1852 | } |
b3821cc5 GFT |
1853 | } |
1854 | ||
1855 | static int | |
94c5ea02 | 1856 | jme_fill_tx_desc(struct jme_adapter *jme, struct sk_buff *skb, int idx) |
b3821cc5 | 1857 | { |
fa97b924 | 1858 | struct jme_ring *txring = &(jme->txring[0]); |
cd0ff491 | 1859 | struct txdesc *txdesc; |
b3821cc5 | 1860 | struct jme_buffer_info *txbi; |
cd0ff491 | 1861 | u8 flags; |
b3821cc5 | 1862 | |
cd0ff491 | 1863 | txdesc = (struct txdesc *)txring->desc + idx; |
b3821cc5 GFT |
1864 | txbi = txring->bufinf + idx; |
1865 | ||
1866 | txdesc->dw[0] = 0; | |
1867 | txdesc->dw[1] = 0; | |
1868 | txdesc->dw[2] = 0; | |
1869 | txdesc->dw[3] = 0; | |
1870 | txdesc->desc1.pktsize = cpu_to_le16(skb->len); | |
1871 | /* | |
1872 | * Set OWN bit at final. | |
1873 | * When kernel transmit faster than NIC. | |
1874 | * And NIC trying to send this descriptor before we tell | |
1875 | * it to start sending this TX queue. | |
1876 | * Other fields are already filled correctly. | |
1877 | */ | |
1878 | wmb(); | |
1879 | flags = TXFLAG_OWN | TXFLAG_INT; | |
cd0ff491 GFT |
1880 | /* |
1881 | * Set checksum flags while not tso | |
1882 | */ | |
1883 | if (jme_tx_tso(skb, &txdesc->desc1.mss, &flags)) | |
1884 | jme_tx_csum(jme, skb, &flags); | |
b3821cc5 | 1885 | jme_tx_vlan(skb, &txdesc->desc1.vlan, &flags); |
94c5ea02 | 1886 | jme_map_tx_skb(jme, skb, idx); |
b3821cc5 GFT |
1887 | txdesc->desc1.flags = flags; |
1888 | /* | |
1889 | * Set tx buffer info after telling NIC to send | |
1890 | * For better tx_clean timing | |
1891 | */ | |
1892 | wmb(); | |
1893 | txbi->nr_desc = skb_shinfo(skb)->nr_frags + 2; | |
1894 | txbi->skb = skb; | |
1895 | txbi->len = skb->len; | |
cd0ff491 GFT |
1896 | txbi->start_xmit = jiffies; |
1897 | if (!txbi->start_xmit) | |
8d27293f | 1898 | txbi->start_xmit = (0UL-1); |
d7699f87 GFT |
1899 | |
1900 | return 0; | |
1901 | } | |
1902 | ||
b3821cc5 GFT |
1903 | static void |
1904 | jme_stop_queue_if_full(struct jme_adapter *jme) | |
1905 | { | |
fa97b924 | 1906 | struct jme_ring *txring = &(jme->txring[0]); |
cd0ff491 GFT |
1907 | struct jme_buffer_info *txbi = txring->bufinf; |
1908 | int idx = atomic_read(&txring->next_to_clean); | |
cdcdc9eb | 1909 | |
cd0ff491 | 1910 | txbi += idx; |
b3821cc5 GFT |
1911 | |
1912 | smp_wmb(); | |
cd0ff491 | 1913 | if (unlikely(atomic_read(&txring->nr_free) < (MAX_SKB_FRAGS+2))) { |
b3821cc5 | 1914 | netif_stop_queue(jme->dev); |
c97b5740 | 1915 | netif_info(jme, tx_queued, jme->dev, "TX Queue Paused.\n"); |
b3821cc5 | 1916 | smp_wmb(); |
cd0ff491 GFT |
1917 | if (atomic_read(&txring->nr_free) |
1918 | >= (jme->tx_wake_threshold)) { | |
b3821cc5 | 1919 | netif_wake_queue(jme->dev); |
c97b5740 | 1920 | netif_info(jme, tx_queued, jme->dev, "TX Queue Fast Waked.\n"); |
b3821cc5 GFT |
1921 | } |
1922 | } | |
1923 | ||
cd0ff491 | 1924 | if (unlikely(txbi->start_xmit && |
cdcdc9eb GFT |
1925 | (jiffies - txbi->start_xmit) >= TX_TIMEOUT && |
1926 | txbi->skb)) { | |
1927 | netif_stop_queue(jme->dev); | |
c97b5740 | 1928 | netif_info(jme, tx_queued, jme->dev, "TX Queue Stopped %d@%lu.\n", idx, jiffies); |
cdcdc9eb | 1929 | } |
b3821cc5 GFT |
1930 | } |
1931 | ||
3bf61c55 GFT |
1932 | /* |
1933 | * This function is already protected by netif_tx_lock() | |
1934 | */ | |
cd0ff491 | 1935 | |
c97b5740 | 1936 | static netdev_tx_t |
3bf61c55 | 1937 | jme_start_xmit(struct sk_buff *skb, struct net_device *netdev) |
d7699f87 | 1938 | { |
cd0ff491 | 1939 | struct jme_adapter *jme = netdev_priv(netdev); |
b3821cc5 | 1940 | int idx; |
d7699f87 | 1941 | |
cd0ff491 | 1942 | if (unlikely(jme_expand_header(jme, skb))) { |
b3821cc5 GFT |
1943 | ++(NET_STAT(jme).tx_dropped); |
1944 | return NETDEV_TX_OK; | |
1945 | } | |
1946 | ||
1947 | idx = jme_alloc_txdesc(jme, skb); | |
79ce639c | 1948 | |
cd0ff491 | 1949 | if (unlikely(idx < 0)) { |
b3821cc5 | 1950 | netif_stop_queue(netdev); |
c97b5740 | 1951 | netif_err(jme, tx_err, jme->dev, "BUG! Tx ring full when queue awake!\n"); |
d7699f87 | 1952 | |
cd0ff491 | 1953 | return NETDEV_TX_BUSY; |
b3821cc5 GFT |
1954 | } |
1955 | ||
94c5ea02 | 1956 | jme_fill_tx_desc(jme, skb, idx); |
b3821cc5 | 1957 | |
4330c2f2 GFT |
1958 | jwrite32(jme, JME_TXCS, jme->reg_txcs | |
1959 | TXCS_SELECT_QUEUE0 | | |
1960 | TXCS_QUEUE0S | | |
1961 | TXCS_ENABLE); | |
d7699f87 | 1962 | |
cd0ff491 GFT |
1963 | tx_dbg(jme, "xmit: %d+%d@%lu\n", idx, |
1964 | skb_shinfo(skb)->nr_frags + 2, | |
1965 | jiffies); | |
b3821cc5 GFT |
1966 | jme_stop_queue_if_full(jme); |
1967 | ||
cd0ff491 | 1968 | return NETDEV_TX_OK; |
d7699f87 GFT |
1969 | } |
1970 | ||
3bf61c55 GFT |
1971 | static int |
1972 | jme_set_macaddr(struct net_device *netdev, void *p) | |
d7699f87 | 1973 | { |
cd0ff491 | 1974 | struct jme_adapter *jme = netdev_priv(netdev); |
d7699f87 | 1975 | struct sockaddr *addr = p; |
cd0ff491 | 1976 | u32 val; |
d7699f87 | 1977 | |
cd0ff491 | 1978 | if (netif_running(netdev)) |
d7699f87 GFT |
1979 | return -EBUSY; |
1980 | ||
cd0ff491 | 1981 | spin_lock_bh(&jme->macaddr_lock); |
d7699f87 GFT |
1982 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
1983 | ||
186fc259 GFT |
1984 | val = (addr->sa_data[3] & 0xff) << 24 | |
1985 | (addr->sa_data[2] & 0xff) << 16 | | |
1986 | (addr->sa_data[1] & 0xff) << 8 | | |
1987 | (addr->sa_data[0] & 0xff); | |
4330c2f2 | 1988 | jwrite32(jme, JME_RXUMA_LO, val); |
186fc259 GFT |
1989 | val = (addr->sa_data[5] & 0xff) << 8 | |
1990 | (addr->sa_data[4] & 0xff); | |
4330c2f2 | 1991 | jwrite32(jme, JME_RXUMA_HI, val); |
cd0ff491 | 1992 | spin_unlock_bh(&jme->macaddr_lock); |
d7699f87 GFT |
1993 | |
1994 | return 0; | |
1995 | } | |
1996 | ||
3bf61c55 GFT |
1997 | static void |
1998 | jme_set_multi(struct net_device *netdev) | |
d7699f87 | 1999 | { |
3bf61c55 | 2000 | struct jme_adapter *jme = netdev_priv(netdev); |
d7699f87 | 2001 | u32 mc_hash[2] = {}; |
d7699f87 | 2002 | |
cd0ff491 | 2003 | spin_lock_bh(&jme->rxmcs_lock); |
8c198884 GFT |
2004 | |
2005 | jme->reg_rxmcs |= RXMCS_BRDFRAME | RXMCS_UNIFRAME; | |
d7699f87 | 2006 | |
cd0ff491 | 2007 | if (netdev->flags & IFF_PROMISC) { |
8c198884 | 2008 | jme->reg_rxmcs |= RXMCS_ALLFRAME; |
cd0ff491 | 2009 | } else if (netdev->flags & IFF_ALLMULTI) { |
8c198884 | 2010 | jme->reg_rxmcs |= RXMCS_ALLMULFRAME; |
cd0ff491 | 2011 | } else if (netdev->flags & IFF_MULTICAST) { |
3bf61c55 GFT |
2012 | struct dev_mc_list *mclist; |
2013 | int bit_nr; | |
d7699f87 | 2014 | |
8c198884 | 2015 | jme->reg_rxmcs |= RXMCS_MULFRAME | RXMCS_MULFILTERED; |
c97b5740 | 2016 | netdev_for_each_mc_addr(mclist, netdev) { |
cd0ff491 GFT |
2017 | bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) & 0x3F; |
2018 | mc_hash[bit_nr >> 5] |= 1 << (bit_nr & 0x1F); | |
2019 | } | |
d7699f87 | 2020 | |
4330c2f2 GFT |
2021 | jwrite32(jme, JME_RXMCHT_LO, mc_hash[0]); |
2022 | jwrite32(jme, JME_RXMCHT_HI, mc_hash[1]); | |
d7699f87 GFT |
2023 | } |
2024 | ||
d7699f87 | 2025 | wmb(); |
8c198884 GFT |
2026 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); |
2027 | ||
cd0ff491 | 2028 | spin_unlock_bh(&jme->rxmcs_lock); |
d7699f87 GFT |
2029 | } |
2030 | ||
3bf61c55 | 2031 | static int |
8c198884 | 2032 | jme_change_mtu(struct net_device *netdev, int new_mtu) |
d7699f87 | 2033 | { |
cd0ff491 | 2034 | struct jme_adapter *jme = netdev_priv(netdev); |
79ce639c | 2035 | |
cd0ff491 | 2036 | if (new_mtu == jme->old_mtu) |
29bdd921 GFT |
2037 | return 0; |
2038 | ||
cd0ff491 GFT |
2039 | if (((new_mtu + ETH_HLEN) > MAX_ETHERNET_JUMBO_PACKET_SIZE) || |
2040 | ((new_mtu) < IPV6_MIN_MTU)) | |
2041 | return -EINVAL; | |
79ce639c | 2042 | |
cd0ff491 | 2043 | if (new_mtu > 4000) { |
79ce639c GFT |
2044 | jme->reg_rxcs &= ~RXCS_FIFOTHNP; |
2045 | jme->reg_rxcs |= RXCS_FIFOTHNP_64QW; | |
2046 | jme_restart_rx_engine(jme); | |
cd0ff491 | 2047 | } else { |
79ce639c GFT |
2048 | jme->reg_rxcs &= ~RXCS_FIFOTHNP; |
2049 | jme->reg_rxcs |= RXCS_FIFOTHNP_128QW; | |
2050 | jme_restart_rx_engine(jme); | |
2051 | } | |
2052 | ||
cd0ff491 | 2053 | if (new_mtu > 1900) { |
b3821cc5 GFT |
2054 | netdev->features &= ~(NETIF_F_HW_CSUM | |
2055 | NETIF_F_TSO | | |
2056 | NETIF_F_TSO6); | |
cd0ff491 GFT |
2057 | } else { |
2058 | if (test_bit(JME_FLAG_TXCSUM, &jme->flags)) | |
b3821cc5 | 2059 | netdev->features |= NETIF_F_HW_CSUM; |
cd0ff491 | 2060 | if (test_bit(JME_FLAG_TSO, &jme->flags)) |
b3821cc5 | 2061 | netdev->features |= NETIF_F_TSO | NETIF_F_TSO6; |
79ce639c GFT |
2062 | } |
2063 | ||
cd0ff491 GFT |
2064 | netdev->mtu = new_mtu; |
2065 | jme_reset_link(jme); | |
79ce639c GFT |
2066 | |
2067 | return 0; | |
d7699f87 GFT |
2068 | } |
2069 | ||
8c198884 GFT |
2070 | static void |
2071 | jme_tx_timeout(struct net_device *netdev) | |
2072 | { | |
cd0ff491 | 2073 | struct jme_adapter *jme = netdev_priv(netdev); |
8c198884 | 2074 | |
cdcdc9eb GFT |
2075 | jme->phylink = 0; |
2076 | jme_reset_phy_processor(jme); | |
cd0ff491 | 2077 | if (test_bit(JME_FLAG_SSET, &jme->flags)) |
cdcdc9eb GFT |
2078 | jme_set_settings(netdev, &jme->old_ecmd); |
2079 | ||
8c198884 | 2080 | /* |
cdcdc9eb | 2081 | * Force to Reset the link again |
8c198884 | 2082 | */ |
29bdd921 | 2083 | jme_reset_link(jme); |
8c198884 GFT |
2084 | } |
2085 | ||
f7f428e4 GFT |
2086 | static inline void jme_pause_rx(struct jme_adapter *jme) |
2087 | { | |
2088 | atomic_dec(&jme->link_changing); | |
2089 | ||
2090 | jme_set_rx_pcc(jme, PCC_OFF); | |
2091 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2092 | JME_NAPI_DISABLE(jme); | |
2093 | } else { | |
2094 | tasklet_disable(&jme->rxclean_task); | |
2095 | tasklet_disable(&jme->rxempty_task); | |
2096 | } | |
2097 | } | |
2098 | ||
2099 | static inline void jme_resume_rx(struct jme_adapter *jme) | |
2100 | { | |
2101 | struct dynpcc_info *dpi = &(jme->dpi); | |
2102 | ||
2103 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { | |
2104 | JME_NAPI_ENABLE(jme); | |
2105 | } else { | |
2106 | tasklet_hi_enable(&jme->rxclean_task); | |
2107 | tasklet_hi_enable(&jme->rxempty_task); | |
2108 | } | |
2109 | dpi->cur = PCC_P1; | |
2110 | dpi->attempt = PCC_P1; | |
2111 | dpi->cnt = 0; | |
2112 | jme_set_rx_pcc(jme, PCC_P1); | |
2113 | ||
2114 | atomic_inc(&jme->link_changing); | |
2115 | } | |
2116 | ||
42b1055e GFT |
2117 | static void |
2118 | jme_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp) | |
2119 | { | |
2120 | struct jme_adapter *jme = netdev_priv(netdev); | |
2121 | ||
f7f428e4 | 2122 | jme_pause_rx(jme); |
42b1055e | 2123 | jme->vlgrp = grp; |
f7f428e4 | 2124 | jme_resume_rx(jme); |
42b1055e GFT |
2125 | } |
2126 | ||
3bf61c55 GFT |
2127 | static void |
2128 | jme_get_drvinfo(struct net_device *netdev, | |
2129 | struct ethtool_drvinfo *info) | |
d7699f87 | 2130 | { |
cd0ff491 | 2131 | struct jme_adapter *jme = netdev_priv(netdev); |
d7699f87 | 2132 | |
cd0ff491 GFT |
2133 | strcpy(info->driver, DRV_NAME); |
2134 | strcpy(info->version, DRV_VERSION); | |
2135 | strcpy(info->bus_info, pci_name(jme->pdev)); | |
d7699f87 GFT |
2136 | } |
2137 | ||
8c198884 GFT |
2138 | static int |
2139 | jme_get_regs_len(struct net_device *netdev) | |
2140 | { | |
cd0ff491 | 2141 | return JME_REG_LEN; |
8c198884 GFT |
2142 | } |
2143 | ||
2144 | static void | |
cd0ff491 | 2145 | mmapio_memcpy(struct jme_adapter *jme, u32 *p, u32 reg, int len) |
8c198884 GFT |
2146 | { |
2147 | int i; | |
2148 | ||
cd0ff491 | 2149 | for (i = 0 ; i < len ; i += 4) |
79ce639c | 2150 | p[i >> 2] = jread32(jme, reg + i); |
186fc259 | 2151 | } |
8c198884 | 2152 | |
186fc259 | 2153 | static void |
cd0ff491 | 2154 | mdio_memcpy(struct jme_adapter *jme, u32 *p, int reg_nr) |
186fc259 GFT |
2155 | { |
2156 | int i; | |
cd0ff491 | 2157 | u16 *p16 = (u16 *)p; |
186fc259 | 2158 | |
cd0ff491 | 2159 | for (i = 0 ; i < reg_nr ; ++i) |
186fc259 | 2160 | p16[i] = jme_mdio_read(jme->dev, jme->mii_if.phy_id, i); |
8c198884 GFT |
2161 | } |
2162 | ||
2163 | static void | |
2164 | jme_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) | |
2165 | { | |
cd0ff491 GFT |
2166 | struct jme_adapter *jme = netdev_priv(netdev); |
2167 | u32 *p32 = (u32 *)p; | |
8c198884 | 2168 | |
186fc259 | 2169 | memset(p, 0xFF, JME_REG_LEN); |
8c198884 GFT |
2170 | |
2171 | regs->version = 1; | |
2172 | mmapio_memcpy(jme, p32, JME_MAC, JME_MAC_LEN); | |
2173 | ||
2174 | p32 += 0x100 >> 2; | |
2175 | mmapio_memcpy(jme, p32, JME_PHY, JME_PHY_LEN); | |
2176 | ||
2177 | p32 += 0x100 >> 2; | |
2178 | mmapio_memcpy(jme, p32, JME_MISC, JME_MISC_LEN); | |
2179 | ||
2180 | p32 += 0x100 >> 2; | |
2181 | mmapio_memcpy(jme, p32, JME_RSS, JME_RSS_LEN); | |
2182 | ||
186fc259 GFT |
2183 | p32 += 0x100 >> 2; |
2184 | mdio_memcpy(jme, p32, JME_PHY_REG_NR); | |
8c198884 GFT |
2185 | } |
2186 | ||
2187 | static int | |
2188 | jme_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) | |
2189 | { | |
2190 | struct jme_adapter *jme = netdev_priv(netdev); | |
2191 | ||
8c198884 GFT |
2192 | ecmd->tx_coalesce_usecs = PCC_TX_TO; |
2193 | ecmd->tx_max_coalesced_frames = PCC_TX_CNT; | |
2194 | ||
cd0ff491 | 2195 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { |
cdcdc9eb GFT |
2196 | ecmd->use_adaptive_rx_coalesce = false; |
2197 | ecmd->rx_coalesce_usecs = 0; | |
2198 | ecmd->rx_max_coalesced_frames = 0; | |
2199 | return 0; | |
2200 | } | |
2201 | ||
2202 | ecmd->use_adaptive_rx_coalesce = true; | |
2203 | ||
cd0ff491 | 2204 | switch (jme->dpi.cur) { |
8c198884 GFT |
2205 | case PCC_P1: |
2206 | ecmd->rx_coalesce_usecs = PCC_P1_TO; | |
2207 | ecmd->rx_max_coalesced_frames = PCC_P1_CNT; | |
2208 | break; | |
2209 | case PCC_P2: | |
2210 | ecmd->rx_coalesce_usecs = PCC_P2_TO; | |
2211 | ecmd->rx_max_coalesced_frames = PCC_P2_CNT; | |
2212 | break; | |
2213 | case PCC_P3: | |
2214 | ecmd->rx_coalesce_usecs = PCC_P3_TO; | |
2215 | ecmd->rx_max_coalesced_frames = PCC_P3_CNT; | |
2216 | break; | |
2217 | default: | |
2218 | break; | |
2219 | } | |
2220 | ||
2221 | return 0; | |
2222 | } | |
2223 | ||
192570e0 GFT |
2224 | static int |
2225 | jme_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) | |
2226 | { | |
2227 | struct jme_adapter *jme = netdev_priv(netdev); | |
2228 | struct dynpcc_info *dpi = &(jme->dpi); | |
2229 | ||
cd0ff491 | 2230 | if (netif_running(netdev)) |
cdcdc9eb GFT |
2231 | return -EBUSY; |
2232 | ||
c97b5740 GFT |
2233 | if (ecmd->use_adaptive_rx_coalesce && |
2234 | test_bit(JME_FLAG_POLL, &jme->flags)) { | |
cd0ff491 | 2235 | clear_bit(JME_FLAG_POLL, &jme->flags); |
cdcdc9eb GFT |
2236 | jme->jme_rx = netif_rx; |
2237 | jme->jme_vlan_rx = vlan_hwaccel_rx; | |
192570e0 GFT |
2238 | dpi->cur = PCC_P1; |
2239 | dpi->attempt = PCC_P1; | |
2240 | dpi->cnt = 0; | |
2241 | jme_set_rx_pcc(jme, PCC_P1); | |
2242 | jme_interrupt_mode(jme); | |
c97b5740 GFT |
2243 | } else if (!(ecmd->use_adaptive_rx_coalesce) && |
2244 | !(test_bit(JME_FLAG_POLL, &jme->flags))) { | |
cd0ff491 | 2245 | set_bit(JME_FLAG_POLL, &jme->flags); |
cdcdc9eb GFT |
2246 | jme->jme_rx = netif_receive_skb; |
2247 | jme->jme_vlan_rx = vlan_hwaccel_receive_skb; | |
192570e0 GFT |
2248 | jme_interrupt_mode(jme); |
2249 | } | |
2250 | ||
2251 | return 0; | |
2252 | } | |
2253 | ||
8c198884 GFT |
2254 | static void |
2255 | jme_get_pauseparam(struct net_device *netdev, | |
2256 | struct ethtool_pauseparam *ecmd) | |
2257 | { | |
2258 | struct jme_adapter *jme = netdev_priv(netdev); | |
cd0ff491 | 2259 | u32 val; |
8c198884 GFT |
2260 | |
2261 | ecmd->tx_pause = (jme->reg_txpfc & TXPFC_PF_EN) != 0; | |
2262 | ecmd->rx_pause = (jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0; | |
2263 | ||
cd0ff491 GFT |
2264 | spin_lock_bh(&jme->phy_lock); |
2265 | val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); | |
2266 | spin_unlock_bh(&jme->phy_lock); | |
b3821cc5 GFT |
2267 | |
2268 | ecmd->autoneg = | |
2269 | (val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0; | |
8c198884 GFT |
2270 | } |
2271 | ||
2272 | static int | |
2273 | jme_set_pauseparam(struct net_device *netdev, | |
2274 | struct ethtool_pauseparam *ecmd) | |
2275 | { | |
2276 | struct jme_adapter *jme = netdev_priv(netdev); | |
cd0ff491 | 2277 | u32 val; |
8c198884 | 2278 | |
cd0ff491 | 2279 | if (((jme->reg_txpfc & TXPFC_PF_EN) != 0) ^ |
8c198884 GFT |
2280 | (ecmd->tx_pause != 0)) { |
2281 | ||
cd0ff491 | 2282 | if (ecmd->tx_pause) |
8c198884 GFT |
2283 | jme->reg_txpfc |= TXPFC_PF_EN; |
2284 | else | |
2285 | jme->reg_txpfc &= ~TXPFC_PF_EN; | |
2286 | ||
2287 | jwrite32(jme, JME_TXPFC, jme->reg_txpfc); | |
2288 | } | |
2289 | ||
cd0ff491 GFT |
2290 | spin_lock_bh(&jme->rxmcs_lock); |
2291 | if (((jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0) ^ | |
8c198884 GFT |
2292 | (ecmd->rx_pause != 0)) { |
2293 | ||
cd0ff491 | 2294 | if (ecmd->rx_pause) |
8c198884 GFT |
2295 | jme->reg_rxmcs |= RXMCS_FLOWCTRL; |
2296 | else | |
2297 | jme->reg_rxmcs &= ~RXMCS_FLOWCTRL; | |
2298 | ||
2299 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); | |
2300 | } | |
cd0ff491 | 2301 | spin_unlock_bh(&jme->rxmcs_lock); |
8c198884 | 2302 | |
cd0ff491 GFT |
2303 | spin_lock_bh(&jme->phy_lock); |
2304 | val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); | |
2305 | if (((val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0) ^ | |
8c198884 GFT |
2306 | (ecmd->autoneg != 0)) { |
2307 | ||
cd0ff491 | 2308 | if (ecmd->autoneg) |
8c198884 GFT |
2309 | val |= (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
2310 | else | |
2311 | val &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
2312 | ||
b3821cc5 GFT |
2313 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, |
2314 | MII_ADVERTISE, val); | |
8c198884 | 2315 | } |
cd0ff491 | 2316 | spin_unlock_bh(&jme->phy_lock); |
8c198884 GFT |
2317 | |
2318 | return 0; | |
2319 | } | |
2320 | ||
29bdd921 GFT |
2321 | static void |
2322 | jme_get_wol(struct net_device *netdev, | |
2323 | struct ethtool_wolinfo *wol) | |
2324 | { | |
2325 | struct jme_adapter *jme = netdev_priv(netdev); | |
2326 | ||
2327 | wol->supported = WAKE_MAGIC | WAKE_PHY; | |
2328 | ||
2329 | wol->wolopts = 0; | |
2330 | ||
cd0ff491 | 2331 | if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) |
29bdd921 GFT |
2332 | wol->wolopts |= WAKE_PHY; |
2333 | ||
cd0ff491 | 2334 | if (jme->reg_pmcs & PMCS_MFEN) |
29bdd921 GFT |
2335 | wol->wolopts |= WAKE_MAGIC; |
2336 | ||
2337 | } | |
2338 | ||
2339 | static int | |
2340 | jme_set_wol(struct net_device *netdev, | |
2341 | struct ethtool_wolinfo *wol) | |
2342 | { | |
2343 | struct jme_adapter *jme = netdev_priv(netdev); | |
2344 | ||
cd0ff491 | 2345 | if (wol->wolopts & (WAKE_MAGICSECURE | |
29bdd921 GFT |
2346 | WAKE_UCAST | |
2347 | WAKE_MCAST | | |
2348 | WAKE_BCAST | | |
2349 | WAKE_ARP)) | |
2350 | return -EOPNOTSUPP; | |
2351 | ||
2352 | jme->reg_pmcs = 0; | |
2353 | ||
cd0ff491 | 2354 | if (wol->wolopts & WAKE_PHY) |
29bdd921 GFT |
2355 | jme->reg_pmcs |= PMCS_LFEN | PMCS_LREN; |
2356 | ||
cd0ff491 | 2357 | if (wol->wolopts & WAKE_MAGIC) |
29bdd921 GFT |
2358 | jme->reg_pmcs |= PMCS_MFEN; |
2359 | ||
cd0ff491 | 2360 | jwrite32(jme, JME_PMCS, jme->reg_pmcs); |
42b1055e | 2361 | |
29bdd921 GFT |
2362 | return 0; |
2363 | } | |
b3821cc5 | 2364 | |
3bf61c55 GFT |
2365 | static int |
2366 | jme_get_settings(struct net_device *netdev, | |
2367 | struct ethtool_cmd *ecmd) | |
d7699f87 GFT |
2368 | { |
2369 | struct jme_adapter *jme = netdev_priv(netdev); | |
2370 | int rc; | |
8c198884 | 2371 | |
cd0ff491 | 2372 | spin_lock_bh(&jme->phy_lock); |
d7699f87 | 2373 | rc = mii_ethtool_gset(&(jme->mii_if), ecmd); |
cd0ff491 | 2374 | spin_unlock_bh(&jme->phy_lock); |
d7699f87 GFT |
2375 | return rc; |
2376 | } | |
2377 | ||
3bf61c55 GFT |
2378 | static int |
2379 | jme_set_settings(struct net_device *netdev, | |
2380 | struct ethtool_cmd *ecmd) | |
d7699f87 GFT |
2381 | { |
2382 | struct jme_adapter *jme = netdev_priv(netdev); | |
cd0ff491 | 2383 | int rc, fdc = 0; |
fcf45b4c | 2384 | |
cd0ff491 | 2385 | if (ecmd->speed == SPEED_1000 && ecmd->autoneg != AUTONEG_ENABLE) |
8c198884 GFT |
2386 | return -EINVAL; |
2387 | ||
cd0ff491 | 2388 | if (jme->mii_if.force_media && |
79ce639c GFT |
2389 | ecmd->autoneg != AUTONEG_ENABLE && |
2390 | (jme->mii_if.full_duplex != ecmd->duplex)) | |
2391 | fdc = 1; | |
2392 | ||
cd0ff491 | 2393 | spin_lock_bh(&jme->phy_lock); |
d7699f87 | 2394 | rc = mii_ethtool_sset(&(jme->mii_if), ecmd); |
cd0ff491 | 2395 | spin_unlock_bh(&jme->phy_lock); |
fcf45b4c | 2396 | |
cd0ff491 | 2397 | if (!rc && fdc) |
79ce639c GFT |
2398 | jme_reset_link(jme); |
2399 | ||
cd0ff491 GFT |
2400 | if (!rc) { |
2401 | set_bit(JME_FLAG_SSET, &jme->flags); | |
29bdd921 GFT |
2402 | jme->old_ecmd = *ecmd; |
2403 | } | |
2404 | ||
d7699f87 GFT |
2405 | return rc; |
2406 | } | |
2407 | ||
cd0ff491 | 2408 | static u32 |
3bf61c55 GFT |
2409 | jme_get_link(struct net_device *netdev) |
2410 | { | |
d7699f87 GFT |
2411 | struct jme_adapter *jme = netdev_priv(netdev); |
2412 | return jread32(jme, JME_PHY_LINK) & PHY_LINK_UP; | |
2413 | } | |
2414 | ||
8c198884 | 2415 | static u32 |
cd0ff491 GFT |
2416 | jme_get_msglevel(struct net_device *netdev) |
2417 | { | |
2418 | struct jme_adapter *jme = netdev_priv(netdev); | |
2419 | return jme->msg_enable; | |
2420 | } | |
2421 | ||
2422 | static void | |
2423 | jme_set_msglevel(struct net_device *netdev, u32 value) | |
8c198884 | 2424 | { |
cd0ff491 GFT |
2425 | struct jme_adapter *jme = netdev_priv(netdev); |
2426 | jme->msg_enable = value; | |
2427 | } | |
8c198884 | 2428 | |
cd0ff491 GFT |
2429 | static u32 |
2430 | jme_get_rx_csum(struct net_device *netdev) | |
2431 | { | |
2432 | struct jme_adapter *jme = netdev_priv(netdev); | |
8c198884 GFT |
2433 | return jme->reg_rxmcs & RXMCS_CHECKSUM; |
2434 | } | |
2435 | ||
2436 | static int | |
2437 | jme_set_rx_csum(struct net_device *netdev, u32 on) | |
2438 | { | |
cd0ff491 | 2439 | struct jme_adapter *jme = netdev_priv(netdev); |
b3821cc5 | 2440 | |
cd0ff491 GFT |
2441 | spin_lock_bh(&jme->rxmcs_lock); |
2442 | if (on) | |
8c198884 GFT |
2443 | jme->reg_rxmcs |= RXMCS_CHECKSUM; |
2444 | else | |
2445 | jme->reg_rxmcs &= ~RXMCS_CHECKSUM; | |
2446 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); | |
cd0ff491 | 2447 | spin_unlock_bh(&jme->rxmcs_lock); |
8c198884 GFT |
2448 | |
2449 | return 0; | |
2450 | } | |
2451 | ||
2452 | static int | |
2453 | jme_set_tx_csum(struct net_device *netdev, u32 on) | |
2454 | { | |
cd0ff491 | 2455 | struct jme_adapter *jme = netdev_priv(netdev); |
b3821cc5 | 2456 | |
cd0ff491 GFT |
2457 | if (on) { |
2458 | set_bit(JME_FLAG_TXCSUM, &jme->flags); | |
2459 | if (netdev->mtu <= 1900) | |
b3821cc5 | 2460 | netdev->features |= NETIF_F_HW_CSUM; |
cd0ff491 GFT |
2461 | } else { |
2462 | clear_bit(JME_FLAG_TXCSUM, &jme->flags); | |
8c198884 | 2463 | netdev->features &= ~NETIF_F_HW_CSUM; |
b3821cc5 | 2464 | } |
8c198884 GFT |
2465 | |
2466 | return 0; | |
2467 | } | |
2468 | ||
b3821cc5 GFT |
2469 | static int |
2470 | jme_set_tso(struct net_device *netdev, u32 on) | |
2471 | { | |
cd0ff491 | 2472 | struct jme_adapter *jme = netdev_priv(netdev); |
b3821cc5 | 2473 | |
cd0ff491 GFT |
2474 | if (on) { |
2475 | set_bit(JME_FLAG_TSO, &jme->flags); | |
2476 | if (netdev->mtu <= 1900) | |
b3821cc5 | 2477 | netdev->features |= NETIF_F_TSO | NETIF_F_TSO6; |
cd0ff491 GFT |
2478 | } else { |
2479 | clear_bit(JME_FLAG_TSO, &jme->flags); | |
2480 | netdev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6); | |
b3821cc5 GFT |
2481 | } |
2482 | ||
cd0ff491 | 2483 | return 0; |
b3821cc5 GFT |
2484 | } |
2485 | ||
8c198884 GFT |
2486 | static int |
2487 | jme_nway_reset(struct net_device *netdev) | |
2488 | { | |
cd0ff491 | 2489 | struct jme_adapter *jme = netdev_priv(netdev); |
8c198884 GFT |
2490 | jme_restart_an(jme); |
2491 | return 0; | |
2492 | } | |
2493 | ||
cd0ff491 | 2494 | static u8 |
186fc259 GFT |
2495 | jme_smb_read(struct jme_adapter *jme, unsigned int addr) |
2496 | { | |
cd0ff491 | 2497 | u32 val; |
186fc259 GFT |
2498 | int to; |
2499 | ||
2500 | val = jread32(jme, JME_SMBCSR); | |
2501 | to = JME_SMB_BUSY_TIMEOUT; | |
cd0ff491 | 2502 | while ((val & SMBCSR_BUSY) && --to) { |
186fc259 GFT |
2503 | msleep(1); |
2504 | val = jread32(jme, JME_SMBCSR); | |
2505 | } | |
cd0ff491 | 2506 | if (!to) { |
c97b5740 | 2507 | netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n"); |
186fc259 GFT |
2508 | return 0xFF; |
2509 | } | |
2510 | ||
2511 | jwrite32(jme, JME_SMBINTF, | |
2512 | ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | | |
2513 | SMBINTF_HWRWN_READ | | |
2514 | SMBINTF_HWCMD); | |
2515 | ||
2516 | val = jread32(jme, JME_SMBINTF); | |
2517 | to = JME_SMB_BUSY_TIMEOUT; | |
cd0ff491 | 2518 | while ((val & SMBINTF_HWCMD) && --to) { |
186fc259 GFT |
2519 | msleep(1); |
2520 | val = jread32(jme, JME_SMBINTF); | |
2521 | } | |
cd0ff491 | 2522 | if (!to) { |
c97b5740 | 2523 | netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n"); |
186fc259 GFT |
2524 | return 0xFF; |
2525 | } | |
2526 | ||
2527 | return (val & SMBINTF_HWDATR) >> SMBINTF_HWDATR_SHIFT; | |
2528 | } | |
2529 | ||
2530 | static void | |
cd0ff491 | 2531 | jme_smb_write(struct jme_adapter *jme, unsigned int addr, u8 data) |
186fc259 | 2532 | { |
cd0ff491 | 2533 | u32 val; |
186fc259 GFT |
2534 | int to; |
2535 | ||
2536 | val = jread32(jme, JME_SMBCSR); | |
2537 | to = JME_SMB_BUSY_TIMEOUT; | |
cd0ff491 | 2538 | while ((val & SMBCSR_BUSY) && --to) { |
186fc259 GFT |
2539 | msleep(1); |
2540 | val = jread32(jme, JME_SMBCSR); | |
2541 | } | |
cd0ff491 | 2542 | if (!to) { |
c97b5740 | 2543 | netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n"); |
186fc259 GFT |
2544 | return; |
2545 | } | |
2546 | ||
2547 | jwrite32(jme, JME_SMBINTF, | |
2548 | ((data << SMBINTF_HWDATW_SHIFT) & SMBINTF_HWDATW) | | |
2549 | ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | | |
2550 | SMBINTF_HWRWN_WRITE | | |
2551 | SMBINTF_HWCMD); | |
2552 | ||
2553 | val = jread32(jme, JME_SMBINTF); | |
2554 | to = JME_SMB_BUSY_TIMEOUT; | |
cd0ff491 | 2555 | while ((val & SMBINTF_HWCMD) && --to) { |
186fc259 GFT |
2556 | msleep(1); |
2557 | val = jread32(jme, JME_SMBINTF); | |
2558 | } | |
cd0ff491 | 2559 | if (!to) { |
c97b5740 | 2560 | netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n"); |
186fc259 GFT |
2561 | return; |
2562 | } | |
2563 | ||
2564 | mdelay(2); | |
2565 | } | |
2566 | ||
2567 | static int | |
2568 | jme_get_eeprom_len(struct net_device *netdev) | |
2569 | { | |
cd0ff491 GFT |
2570 | struct jme_adapter *jme = netdev_priv(netdev); |
2571 | u32 val; | |
186fc259 | 2572 | val = jread32(jme, JME_SMBCSR); |
cd0ff491 | 2573 | return (val & SMBCSR_EEPROMD) ? JME_SMB_LEN : 0; |
186fc259 GFT |
2574 | } |
2575 | ||
2576 | static int | |
2577 | jme_get_eeprom(struct net_device *netdev, | |
2578 | struct ethtool_eeprom *eeprom, u8 *data) | |
2579 | { | |
cd0ff491 | 2580 | struct jme_adapter *jme = netdev_priv(netdev); |
186fc259 GFT |
2581 | int i, offset = eeprom->offset, len = eeprom->len; |
2582 | ||
2583 | /* | |
8d27293f | 2584 | * ethtool will check the boundary for us |
186fc259 GFT |
2585 | */ |
2586 | eeprom->magic = JME_EEPROM_MAGIC; | |
cd0ff491 | 2587 | for (i = 0 ; i < len ; ++i) |
186fc259 GFT |
2588 | data[i] = jme_smb_read(jme, i + offset); |
2589 | ||
2590 | return 0; | |
2591 | } | |
2592 | ||
2593 | static int | |
2594 | jme_set_eeprom(struct net_device *netdev, | |
2595 | struct ethtool_eeprom *eeprom, u8 *data) | |
2596 | { | |
cd0ff491 | 2597 | struct jme_adapter *jme = netdev_priv(netdev); |
186fc259 GFT |
2598 | int i, offset = eeprom->offset, len = eeprom->len; |
2599 | ||
2600 | if (eeprom->magic != JME_EEPROM_MAGIC) | |
2601 | return -EINVAL; | |
2602 | ||
2603 | /* | |
8d27293f | 2604 | * ethtool will check the boundary for us |
186fc259 | 2605 | */ |
cd0ff491 | 2606 | for (i = 0 ; i < len ; ++i) |
186fc259 GFT |
2607 | jme_smb_write(jme, i + offset, data[i]); |
2608 | ||
2609 | return 0; | |
2610 | } | |
2611 | ||
d7699f87 | 2612 | static const struct ethtool_ops jme_ethtool_ops = { |
cd0ff491 | 2613 | .get_drvinfo = jme_get_drvinfo, |
8c198884 GFT |
2614 | .get_regs_len = jme_get_regs_len, |
2615 | .get_regs = jme_get_regs, | |
2616 | .get_coalesce = jme_get_coalesce, | |
192570e0 | 2617 | .set_coalesce = jme_set_coalesce, |
cd0ff491 GFT |
2618 | .get_pauseparam = jme_get_pauseparam, |
2619 | .set_pauseparam = jme_set_pauseparam, | |
29bdd921 GFT |
2620 | .get_wol = jme_get_wol, |
2621 | .set_wol = jme_set_wol, | |
d7699f87 GFT |
2622 | .get_settings = jme_get_settings, |
2623 | .set_settings = jme_set_settings, | |
2624 | .get_link = jme_get_link, | |
cd0ff491 GFT |
2625 | .get_msglevel = jme_get_msglevel, |
2626 | .set_msglevel = jme_set_msglevel, | |
8c198884 GFT |
2627 | .get_rx_csum = jme_get_rx_csum, |
2628 | .set_rx_csum = jme_set_rx_csum, | |
2629 | .set_tx_csum = jme_set_tx_csum, | |
b3821cc5 GFT |
2630 | .set_tso = jme_set_tso, |
2631 | .set_sg = ethtool_op_set_sg, | |
8c198884 | 2632 | .nway_reset = jme_nway_reset, |
186fc259 GFT |
2633 | .get_eeprom_len = jme_get_eeprom_len, |
2634 | .get_eeprom = jme_get_eeprom, | |
2635 | .set_eeprom = jme_set_eeprom, | |
d7699f87 GFT |
2636 | }; |
2637 | ||
3bf61c55 GFT |
2638 | static int |
2639 | jme_pci_dma64(struct pci_dev *pdev) | |
d7699f87 | 2640 | { |
94c5ea02 | 2641 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && |
fa97b924 GFT |
2642 | !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) |
2643 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) | |
3bf61c55 GFT |
2644 | return 1; |
2645 | ||
94c5ea02 | 2646 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && |
fa97b924 GFT |
2647 | !pci_set_dma_mask(pdev, DMA_BIT_MASK(40))) |
2648 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40))) | |
8c198884 GFT |
2649 | return 1; |
2650 | ||
fa97b924 GFT |
2651 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) |
2652 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) | |
3bf61c55 GFT |
2653 | return 0; |
2654 | ||
2655 | return -1; | |
2656 | } | |
2657 | ||
cd0ff491 | 2658 | static inline void |
cdcdc9eb GFT |
2659 | jme_phy_init(struct jme_adapter *jme) |
2660 | { | |
cd0ff491 | 2661 | u16 reg26; |
cdcdc9eb GFT |
2662 | |
2663 | reg26 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 26); | |
2664 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 26, reg26 | 0x1000); | |
2665 | } | |
2666 | ||
cd0ff491 | 2667 | static inline void |
cdcdc9eb | 2668 | jme_check_hw_ver(struct jme_adapter *jme) |
42b1055e | 2669 | { |
cd0ff491 | 2670 | u32 chipmode; |
cdcdc9eb GFT |
2671 | |
2672 | chipmode = jread32(jme, JME_CHIPMODE); | |
2673 | ||
2674 | jme->fpgaver = (chipmode & CM_FPGAVER_MASK) >> CM_FPGAVER_SHIFT; | |
e882564f | 2675 | jme->chiprev = (chipmode & CM_CHIPREV_MASK) >> CM_CHIPREV_SHIFT; |
42b1055e GFT |
2676 | } |
2677 | ||
94c5ea02 GFT |
2678 | static const struct net_device_ops jme_netdev_ops = { |
2679 | .ndo_open = jme_open, | |
2680 | .ndo_stop = jme_close, | |
2681 | .ndo_validate_addr = eth_validate_addr, | |
2682 | .ndo_start_xmit = jme_start_xmit, | |
2683 | .ndo_set_mac_address = jme_set_macaddr, | |
2684 | .ndo_set_multicast_list = jme_set_multi, | |
2685 | .ndo_change_mtu = jme_change_mtu, | |
2686 | .ndo_tx_timeout = jme_tx_timeout, | |
2687 | .ndo_vlan_rx_register = jme_vlan_rx_register, | |
2688 | }; | |
2689 | ||
3bf61c55 GFT |
2690 | static int __devinit |
2691 | jme_init_one(struct pci_dev *pdev, | |
2692 | const struct pci_device_id *ent) | |
2693 | { | |
cdcdc9eb | 2694 | int rc = 0, using_dac, i; |
d7699f87 GFT |
2695 | struct net_device *netdev; |
2696 | struct jme_adapter *jme; | |
cd0ff491 GFT |
2697 | u16 bmcr, bmsr; |
2698 | u32 apmc; | |
d7699f87 GFT |
2699 | |
2700 | /* | |
2701 | * set up PCI device basics | |
2702 | */ | |
4330c2f2 | 2703 | rc = pci_enable_device(pdev); |
cd0ff491 GFT |
2704 | if (rc) { |
2705 | jeprintk(pdev, "Cannot enable PCI device.\n"); | |
4330c2f2 GFT |
2706 | goto err_out; |
2707 | } | |
d7699f87 | 2708 | |
3bf61c55 | 2709 | using_dac = jme_pci_dma64(pdev); |
cd0ff491 GFT |
2710 | if (using_dac < 0) { |
2711 | jeprintk(pdev, "Cannot set PCI DMA Mask.\n"); | |
3bf61c55 GFT |
2712 | rc = -EIO; |
2713 | goto err_out_disable_pdev; | |
2714 | } | |
2715 | ||
cd0ff491 GFT |
2716 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
2717 | jeprintk(pdev, "No PCI resource region found.\n"); | |
4330c2f2 GFT |
2718 | rc = -ENOMEM; |
2719 | goto err_out_disable_pdev; | |
2720 | } | |
d7699f87 | 2721 | |
4330c2f2 | 2722 | rc = pci_request_regions(pdev, DRV_NAME); |
cd0ff491 GFT |
2723 | if (rc) { |
2724 | jeprintk(pdev, "Cannot obtain PCI resource region.\n"); | |
4330c2f2 GFT |
2725 | goto err_out_disable_pdev; |
2726 | } | |
d7699f87 GFT |
2727 | |
2728 | pci_set_master(pdev); | |
2729 | ||
2730 | /* | |
2731 | * alloc and init net device | |
2732 | */ | |
3bf61c55 | 2733 | netdev = alloc_etherdev(sizeof(*jme)); |
cd0ff491 GFT |
2734 | if (!netdev) { |
2735 | jeprintk(pdev, "Cannot allocate netdev structure.\n"); | |
4330c2f2 GFT |
2736 | rc = -ENOMEM; |
2737 | goto err_out_release_regions; | |
d7699f87 | 2738 | } |
94c5ea02 | 2739 | netdev->netdev_ops = &jme_netdev_ops; |
d7699f87 | 2740 | netdev->ethtool_ops = &jme_ethtool_ops; |
8c198884 | 2741 | netdev->watchdog_timeo = TX_TIMEOUT; |
42b1055e | 2742 | netdev->features = NETIF_F_HW_CSUM | |
b3821cc5 GFT |
2743 | NETIF_F_SG | |
2744 | NETIF_F_TSO | | |
2745 | NETIF_F_TSO6 | | |
42b1055e GFT |
2746 | NETIF_F_HW_VLAN_TX | |
2747 | NETIF_F_HW_VLAN_RX; | |
cd0ff491 | 2748 | if (using_dac) |
8c198884 | 2749 | netdev->features |= NETIF_F_HIGHDMA; |
d7699f87 GFT |
2750 | |
2751 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
2752 | pci_set_drvdata(pdev, netdev); | |
2753 | ||
2754 | /* | |
2755 | * init adapter info | |
2756 | */ | |
2757 | jme = netdev_priv(netdev); | |
2758 | jme->pdev = pdev; | |
2759 | jme->dev = netdev; | |
cdcdc9eb GFT |
2760 | jme->jme_rx = netif_rx; |
2761 | jme->jme_vlan_rx = vlan_hwaccel_rx; | |
29bdd921 | 2762 | jme->old_mtu = netdev->mtu = 1500; |
fcf45b4c | 2763 | jme->phylink = 0; |
b3821cc5 GFT |
2764 | jme->tx_ring_size = 1 << 10; |
2765 | jme->tx_ring_mask = jme->tx_ring_size - 1; | |
2766 | jme->tx_wake_threshold = 1 << 9; | |
2767 | jme->rx_ring_size = 1 << 9; | |
2768 | jme->rx_ring_mask = jme->rx_ring_size - 1; | |
cd0ff491 | 2769 | jme->msg_enable = JME_DEF_MSG_ENABLE; |
d7699f87 GFT |
2770 | jme->regs = ioremap(pci_resource_start(pdev, 0), |
2771 | pci_resource_len(pdev, 0)); | |
4330c2f2 | 2772 | if (!(jme->regs)) { |
cd0ff491 | 2773 | jeprintk(pdev, "Mapping PCI resource region error.\n"); |
d7699f87 GFT |
2774 | rc = -ENOMEM; |
2775 | goto err_out_free_netdev; | |
2776 | } | |
4330c2f2 | 2777 | |
cd0ff491 GFT |
2778 | if (no_pseudohp) { |
2779 | apmc = jread32(jme, JME_APMC) & ~JME_APMC_PSEUDO_HP_EN; | |
2780 | jwrite32(jme, JME_APMC, apmc); | |
2781 | } else if (force_pseudohp) { | |
2782 | apmc = jread32(jme, JME_APMC) | JME_APMC_PSEUDO_HP_EN; | |
2783 | jwrite32(jme, JME_APMC, apmc); | |
2784 | } | |
2785 | ||
cdcdc9eb | 2786 | NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, jme->rx_ring_size >> 2) |
192570e0 | 2787 | |
d7699f87 | 2788 | spin_lock_init(&jme->phy_lock); |
fcf45b4c | 2789 | spin_lock_init(&jme->macaddr_lock); |
8c198884 | 2790 | spin_lock_init(&jme->rxmcs_lock); |
fcf45b4c | 2791 | |
fcf45b4c GFT |
2792 | atomic_set(&jme->link_changing, 1); |
2793 | atomic_set(&jme->rx_cleaning, 1); | |
2794 | atomic_set(&jme->tx_cleaning, 1); | |
192570e0 | 2795 | atomic_set(&jme->rx_empty, 1); |
fcf45b4c | 2796 | |
79ce639c | 2797 | tasklet_init(&jme->pcc_task, |
c97b5740 | 2798 | jme_pcc_tasklet, |
79ce639c | 2799 | (unsigned long) jme); |
4330c2f2 | 2800 | tasklet_init(&jme->linkch_task, |
c97b5740 | 2801 | jme_link_change_tasklet, |
4330c2f2 GFT |
2802 | (unsigned long) jme); |
2803 | tasklet_init(&jme->txclean_task, | |
c97b5740 | 2804 | jme_tx_clean_tasklet, |
4330c2f2 GFT |
2805 | (unsigned long) jme); |
2806 | tasklet_init(&jme->rxclean_task, | |
c97b5740 | 2807 | jme_rx_clean_tasklet, |
4330c2f2 | 2808 | (unsigned long) jme); |
fcf45b4c | 2809 | tasklet_init(&jme->rxempty_task, |
c97b5740 | 2810 | jme_rx_empty_tasklet, |
fcf45b4c | 2811 | (unsigned long) jme); |
fa97b924 | 2812 | tasklet_disable_nosync(&jme->linkch_task); |
cd0ff491 GFT |
2813 | tasklet_disable_nosync(&jme->txclean_task); |
2814 | tasklet_disable_nosync(&jme->rxclean_task); | |
2815 | tasklet_disable_nosync(&jme->rxempty_task); | |
8c198884 GFT |
2816 | jme->dpi.cur = PCC_P1; |
2817 | ||
cd0ff491 | 2818 | jme->reg_ghc = 0; |
79ce639c | 2819 | jme->reg_rxcs = RXCS_DEFAULT; |
8c198884 GFT |
2820 | jme->reg_rxmcs = RXMCS_DEFAULT; |
2821 | jme->reg_txpfc = 0; | |
47220951 | 2822 | jme->reg_pmcs = PMCS_MFEN; |
cd0ff491 GFT |
2823 | set_bit(JME_FLAG_TXCSUM, &jme->flags); |
2824 | set_bit(JME_FLAG_TSO, &jme->flags); | |
192570e0 | 2825 | |
fcf45b4c GFT |
2826 | /* |
2827 | * Get Max Read Req Size from PCI Config Space | |
2828 | */ | |
cd0ff491 GFT |
2829 | pci_read_config_byte(pdev, PCI_DCSR_MRRS, &jme->mrrs); |
2830 | jme->mrrs &= PCI_DCSR_MRRS_MASK; | |
2831 | switch (jme->mrrs) { | |
2832 | case MRRS_128B: | |
2833 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_128B; | |
2834 | break; | |
2835 | case MRRS_256B: | |
2836 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_256B; | |
2837 | break; | |
2838 | default: | |
2839 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_512B; | |
2840 | break; | |
fcf45b4c GFT |
2841 | }; |
2842 | ||
d7699f87 | 2843 | /* |
cdcdc9eb | 2844 | * Must check before reset_mac_processor |
d7699f87 | 2845 | */ |
cdcdc9eb GFT |
2846 | jme_check_hw_ver(jme); |
2847 | jme->mii_if.dev = netdev; | |
cd0ff491 | 2848 | if (jme->fpgaver) { |
cdcdc9eb | 2849 | jme->mii_if.phy_id = 0; |
cd0ff491 | 2850 | for (i = 1 ; i < 32 ; ++i) { |
cdcdc9eb GFT |
2851 | bmcr = jme_mdio_read(netdev, i, MII_BMCR); |
2852 | bmsr = jme_mdio_read(netdev, i, MII_BMSR); | |
cd0ff491 | 2853 | if (bmcr != 0xFFFFU && (bmcr != 0 || bmsr != 0)) { |
cdcdc9eb GFT |
2854 | jme->mii_if.phy_id = i; |
2855 | break; | |
2856 | } | |
2857 | } | |
2858 | ||
cd0ff491 | 2859 | if (!jme->mii_if.phy_id) { |
cdcdc9eb | 2860 | rc = -EIO; |
cd0ff491 | 2861 | jeprintk(pdev, "Can not find phy_id.\n"); |
fa97b924 | 2862 | goto err_out_unmap; |
cdcdc9eb GFT |
2863 | } |
2864 | ||
2865 | jme->reg_ghc |= GHC_LINK_POLL; | |
cd0ff491 | 2866 | } else { |
cdcdc9eb GFT |
2867 | jme->mii_if.phy_id = 1; |
2868 | } | |
cd0ff491 | 2869 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) |
8d27293f GFT |
2870 | jme->mii_if.supports_gmii = true; |
2871 | else | |
2872 | jme->mii_if.supports_gmii = false; | |
cdcdc9eb GFT |
2873 | jme->mii_if.mdio_read = jme_mdio_read; |
2874 | jme->mii_if.mdio_write = jme_mdio_write; | |
2875 | ||
d7699f87 | 2876 | jme_clear_pm(jme); |
e882564f | 2877 | jme_set_phyfifoa(jme); |
cd0ff491 GFT |
2878 | pci_read_config_byte(pdev, PCI_REVISION_ID, &jme->rev); |
2879 | if (!jme->fpgaver) | |
cdcdc9eb | 2880 | jme_phy_init(jme); |
42b1055e | 2881 | jme_phy_off(jme); |
cdcdc9eb GFT |
2882 | |
2883 | /* | |
2884 | * Reset MAC processor and reload EEPROM for MAC Address | |
2885 | */ | |
d7699f87 | 2886 | jme_reset_mac_processor(jme); |
4330c2f2 | 2887 | rc = jme_reload_eeprom(jme); |
cd0ff491 GFT |
2888 | if (rc) { |
2889 | jeprintk(pdev, | |
b3821cc5 | 2890 | "Reload eeprom for reading MAC Address error.\n"); |
fa97b924 | 2891 | goto err_out_unmap; |
4330c2f2 | 2892 | } |
d7699f87 GFT |
2893 | jme_load_macaddr(netdev); |
2894 | ||
d7699f87 GFT |
2895 | /* |
2896 | * Tell stack that we are not ready to work until open() | |
2897 | */ | |
2898 | netif_carrier_off(netdev); | |
2899 | netif_stop_queue(netdev); | |
2900 | ||
2901 | /* | |
2902 | * Register netdev | |
2903 | */ | |
4330c2f2 | 2904 | rc = register_netdev(netdev); |
cd0ff491 GFT |
2905 | if (rc) { |
2906 | jeprintk(pdev, "Cannot register net device.\n"); | |
fa97b924 | 2907 | goto err_out_unmap; |
4330c2f2 | 2908 | } |
d7699f87 | 2909 | |
c97b5740 GFT |
2910 | netif_info(jme, probe, jme->dev, "%s%s ver:%x rev:%x macaddr:%pM\n", |
2911 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) ? | |
2912 | "JMC250 Gigabit Ethernet" : | |
2913 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC260) ? | |
2914 | "JMC260 Fast Ethernet" : "Unknown", | |
2915 | (jme->fpgaver != 0) ? " (FPGA)" : "", | |
2916 | (jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev, | |
2917 | jme->rev, netdev->dev_addr); | |
d7699f87 GFT |
2918 | |
2919 | return 0; | |
2920 | ||
2921 | err_out_unmap: | |
2922 | iounmap(jme->regs); | |
2923 | err_out_free_netdev: | |
2924 | pci_set_drvdata(pdev, NULL); | |
2925 | free_netdev(netdev); | |
4330c2f2 GFT |
2926 | err_out_release_regions: |
2927 | pci_release_regions(pdev); | |
d7699f87 | 2928 | err_out_disable_pdev: |
cd0ff491 | 2929 | pci_disable_device(pdev); |
d7699f87 | 2930 | err_out: |
4330c2f2 | 2931 | return rc; |
d7699f87 GFT |
2932 | } |
2933 | ||
3bf61c55 GFT |
2934 | static void __devexit |
2935 | jme_remove_one(struct pci_dev *pdev) | |
2936 | { | |
d7699f87 GFT |
2937 | struct net_device *netdev = pci_get_drvdata(pdev); |
2938 | struct jme_adapter *jme = netdev_priv(netdev); | |
2939 | ||
2940 | unregister_netdev(netdev); | |
2941 | iounmap(jme->regs); | |
2942 | pci_set_drvdata(pdev, NULL); | |
2943 | free_netdev(netdev); | |
2944 | pci_release_regions(pdev); | |
2945 | pci_disable_device(pdev); | |
2946 | ||
2947 | } | |
2948 | ||
9b9d55de | 2949 | #ifdef CONFIG_PM |
29bdd921 GFT |
2950 | static int |
2951 | jme_suspend(struct pci_dev *pdev, pm_message_t state) | |
2952 | { | |
2953 | struct net_device *netdev = pci_get_drvdata(pdev); | |
2954 | struct jme_adapter *jme = netdev_priv(netdev); | |
29bdd921 GFT |
2955 | |
2956 | atomic_dec(&jme->link_changing); | |
2957 | ||
2958 | netif_device_detach(netdev); | |
2959 | netif_stop_queue(netdev); | |
2960 | jme_stop_irq(jme); | |
29bdd921 | 2961 | |
cd0ff491 GFT |
2962 | tasklet_disable(&jme->txclean_task); |
2963 | tasklet_disable(&jme->rxclean_task); | |
2964 | tasklet_disable(&jme->rxempty_task); | |
2965 | ||
cd0ff491 GFT |
2966 | if (netif_carrier_ok(netdev)) { |
2967 | if (test_bit(JME_FLAG_POLL, &jme->flags)) | |
47220951 GFT |
2968 | jme_polling_mode(jme); |
2969 | ||
29bdd921 | 2970 | jme_stop_pcc_timer(jme); |
cd0ff491 GFT |
2971 | jme_reset_ghc_speed(jme); |
2972 | jme_disable_rx_engine(jme); | |
2973 | jme_disable_tx_engine(jme); | |
29bdd921 GFT |
2974 | jme_reset_mac_processor(jme); |
2975 | jme_free_rx_resources(jme); | |
2976 | jme_free_tx_resources(jme); | |
2977 | netif_carrier_off(netdev); | |
2978 | jme->phylink = 0; | |
2979 | } | |
2980 | ||
cd0ff491 GFT |
2981 | tasklet_enable(&jme->txclean_task); |
2982 | tasklet_hi_enable(&jme->rxclean_task); | |
2983 | tasklet_hi_enable(&jme->rxempty_task); | |
29bdd921 GFT |
2984 | |
2985 | pci_save_state(pdev); | |
cd0ff491 | 2986 | if (jme->reg_pmcs) { |
42b1055e | 2987 | jme_set_100m_half(jme); |
47220951 | 2988 | |
cd0ff491 | 2989 | if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) |
47220951 GFT |
2990 | jme_wait_link(jme); |
2991 | ||
29bdd921 | 2992 | jwrite32(jme, JME_PMCS, jme->reg_pmcs); |
cd0ff491 | 2993 | |
42b1055e | 2994 | pci_enable_wake(pdev, PCI_D3cold, true); |
cd0ff491 | 2995 | } else { |
42b1055e | 2996 | jme_phy_off(jme); |
29bdd921 | 2997 | } |
cd0ff491 | 2998 | pci_set_power_state(pdev, PCI_D3cold); |
29bdd921 GFT |
2999 | |
3000 | return 0; | |
3001 | } | |
3002 | ||
3003 | static int | |
3004 | jme_resume(struct pci_dev *pdev) | |
3005 | { | |
3006 | struct net_device *netdev = pci_get_drvdata(pdev); | |
3007 | struct jme_adapter *jme = netdev_priv(netdev); | |
3008 | ||
3009 | jme_clear_pm(jme); | |
3010 | pci_restore_state(pdev); | |
3011 | ||
cd0ff491 | 3012 | if (test_bit(JME_FLAG_SSET, &jme->flags)) |
29bdd921 GFT |
3013 | jme_set_settings(netdev, &jme->old_ecmd); |
3014 | else | |
3015 | jme_reset_phy_processor(jme); | |
3016 | ||
29bdd921 GFT |
3017 | jme_start_irq(jme); |
3018 | netif_device_attach(netdev); | |
3019 | ||
3020 | atomic_inc(&jme->link_changing); | |
3021 | ||
3022 | jme_reset_link(jme); | |
3023 | ||
3024 | return 0; | |
3025 | } | |
9b9d55de | 3026 | #endif |
29bdd921 | 3027 | |
c97b5740 | 3028 | static DEFINE_PCI_DEVICE_TABLE(jme_pci_tbl) = { |
cd0ff491 GFT |
3029 | { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC250) }, |
3030 | { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC260) }, | |
d7699f87 GFT |
3031 | { } |
3032 | }; | |
3033 | ||
3034 | static struct pci_driver jme_driver = { | |
cd0ff491 GFT |
3035 | .name = DRV_NAME, |
3036 | .id_table = jme_pci_tbl, | |
3037 | .probe = jme_init_one, | |
3038 | .remove = __devexit_p(jme_remove_one), | |
d7699f87 | 3039 | #ifdef CONFIG_PM |
cd0ff491 GFT |
3040 | .suspend = jme_suspend, |
3041 | .resume = jme_resume, | |
d7699f87 | 3042 | #endif /* CONFIG_PM */ |
d7699f87 GFT |
3043 | }; |
3044 | ||
3bf61c55 GFT |
3045 | static int __init |
3046 | jme_init_module(void) | |
d7699f87 | 3047 | { |
94c5ea02 | 3048 | printk(KERN_INFO PFX "JMicron JMC2XX ethernet " |
4330c2f2 | 3049 | "driver version %s\n", DRV_VERSION); |
d7699f87 GFT |
3050 | return pci_register_driver(&jme_driver); |
3051 | } | |
3052 | ||
3bf61c55 GFT |
3053 | static void __exit |
3054 | jme_cleanup_module(void) | |
d7699f87 GFT |
3055 | { |
3056 | pci_unregister_driver(&jme_driver); | |
3057 | } | |
3058 | ||
3059 | module_init(jme_init_module); | |
3060 | module_exit(jme_cleanup_module); | |
3061 | ||
3bf61c55 | 3062 | MODULE_AUTHOR("Guo-Fu Tseng <cooldavid@cooldavid.org>"); |
d7699f87 GFT |
3063 | MODULE_DESCRIPTION("JMicron JMC2x0 PCI Express Ethernet driver"); |
3064 | MODULE_LICENSE("GPL"); | |
3065 | MODULE_VERSION(DRV_VERSION); | |
3066 | MODULE_DEVICE_TABLE(pci, jme_pci_tbl); | |
3067 |