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drivers/net: Remove alloc_etherdev error messages
[jme.git] / jme.c
CommitLineData
d7699f87
GFT		 1/*
2 * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver
3 *
4 * Copyright 2008 JMicron Technology Corporation
5 * http://www.jmicron.com/
eee57828 6 * Copyright (c) 2009 - 2010 Guo-Fu Tseng <cooldavid@cooldavid.org>
d7699f87 7 *
3bf61c55
GFT		 8 * Author: Guo-Fu Tseng <cooldavid@cooldavid.org>
9 *
d7699f87
GFT		 10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 */
24
52a46ba8
JP		 25#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26
d7699f87
GFT		 27#include <linux/module.h>
28#include <linux/kernel.h>
29#include <linux/pci.h>
30#include <linux/netdevice.h>
31#include <linux/etherdevice.h>
32#include <linux/ethtool.h>
33#include <linux/mii.h>
34#include <linux/crc32.h>
4330c2f2 35#include <linux/delay.h>
29bdd921 36#include <linux/spinlock.h>
8c198884
GFT		 37#include <linux/in.h>
38#include <linux/ip.h>
79ce639c
GFT		 39#include <linux/ipv6.h>
40#include <linux/tcp.h>
41#include <linux/udp.h>
42b1055e 42#include <linux/if_vlan.h>
6d641c63 43#include <linux/slab.h>
94c5ea02 44#include <net/ip6_checksum.h>
d7699f87
GFT		 45#include "jme.h"
46
cd0ff491
GFT		 47static int force_pseudohp = -1;
48static int no_pseudohp = -1;
49static int no_extplug = -1;
50module_param(force_pseudohp, int, 0);
51MODULE_PARM_DESC(force_pseudohp,
52 "Enable pseudo hot-plug feature manually by driver instead of BIOS.");
53module_param(no_pseudohp, int, 0);
54MODULE_PARM_DESC(no_pseudohp, "Disable pseudo hot-plug feature.");
55module_param(no_extplug, int, 0);
56MODULE_PARM_DESC(no_extplug,
57 "Do not use external plug signal for pseudo hot-plug.");
4330c2f2 58
3bf61c55
GFT		 59static int
60jme_mdio_read(struct net_device *netdev, int phy, int reg)
d7699f87
GFT		 61{
62 struct jme_adapter *jme = netdev_priv(netdev);
cd0ff491 63 int i, val, again = (reg == MII_BMSR) ? 1 : 0;
d7699f87 64
186fc259 65read_again:
cd0ff491 66 jwrite32(jme, JME_SMI, SMI_OP_REQ |
3bf61c55
GFT		 67 smi_phy_addr(phy) |
68 smi_reg_addr(reg));
d7699f87
GFT		 69
70 wmb();
cd0ff491 71 for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) {
cdcdc9eb 72 udelay(20);
b3821cc5
GFT		 73 val = jread32(jme, JME_SMI);
74 if ((val & SMI_OP_REQ) == 0)
3bf61c55 75 break;
cd0ff491 76 }
d7699f87 77
cd0ff491 78 if (i == 0) {
52a46ba8 79 pr_err("phy(%d) read timeout : %d\n", phy, reg);
3bf61c55 80 return 0;
cd0ff491 81 }
d7699f87 82
cd0ff491 83 if (again--)
186fc259
GFT		 84 goto read_again;
85
cd0ff491 86 return (val & SMI_DATA_MASK) >> SMI_DATA_SHIFT;
d7699f87
GFT		 87}
88
3bf61c55
GFT		 89static void
90jme_mdio_write(struct net_device *netdev,
91 int phy, int reg, int val)
d7699f87
GFT		 92{
93 struct jme_adapter *jme = netdev_priv(netdev);
94 int i;
95
3bf61c55
GFT		 96 jwrite32(jme, JME_SMI, SMI_OP_WRITE | SMI_OP_REQ |
97 ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) |
98 smi_phy_addr(phy) | smi_reg_addr(reg));
d7699f87
GFT		 99
100 wmb();
cdcdc9eb
GFT		 101 for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) {
102 udelay(20);
8d27293f 103 if ((jread32(jme, JME_SMI) & SMI_OP_REQ) == 0)
3bf61c55
GFT		 104 break;
105 }
d7699f87 106
3bf61c55 107 if (i == 0)
52a46ba8 108 pr_err("phy(%d) write timeout : %d\n", phy, reg);
d7699f87
GFT		 109}
110
cd0ff491 111static inline void
3bf61c55 112jme_reset_phy_processor(struct jme_adapter *jme)
d7699f87 113{
cd0ff491 114 u32 val;
3bf61c55
GFT		 115
116 jme_mdio_write(jme->dev,
117 jme->mii_if.phy_id,
8c198884
GFT		 118 MII_ADVERTISE, ADVERTISE_ALL |
119 ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
3bf61c55 120
cd0ff491 121 if (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250)
8d27293f
GFT		 122 jme_mdio_write(jme->dev,
123 jme->mii_if.phy_id,
124 MII_CTRL1000,
125 ADVERTISE_1000FULL | ADVERTISE_1000HALF);
3bf61c55 126
fcf45b4c
GFT		 127 val = jme_mdio_read(jme->dev,
128 jme->mii_if.phy_id,
129 MII_BMCR);
130
131 jme_mdio_write(jme->dev,
132 jme->mii_if.phy_id,
133 MII_BMCR, val | BMCR_RESET);
3bf61c55
GFT		 134}
135
b3821cc5
GFT		 136static void
137jme_setup_wakeup_frame(struct jme_adapter *jme,
0d8a2973 138 const 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
ed830419
GFT		 163static inline void
164jme_mac_rxclk_off(struct jme_adapter *jme)
165{
166 jme->reg_gpreg1 |= GPREG1_RXCLKOFF;
167 jwrite32f(jme, JME_GPREG1, jme->reg_gpreg1);
168}
169
170static inline void
171jme_mac_rxclk_on(struct jme_adapter *jme)
172{
173 jme->reg_gpreg1 &= ~GPREG1_RXCLKOFF;
174 jwrite32f(jme, JME_GPREG1, jme->reg_gpreg1);
175}
176
177static inline void
178jme_mac_txclk_off(struct jme_adapter *jme)
179{
180 jme->reg_ghc &= ~(GHC_TO_CLK_SRC | GHC_TXMAC_CLK_SRC);
181 jwrite32f(jme, JME_GHC, jme->reg_ghc);
182}
183
184static inline void
185jme_mac_txclk_on(struct jme_adapter *jme)
186{
187 u32 speed = jme->reg_ghc & GHC_SPEED;
188 if (speed == GHC_SPEED_1000M)
189 jme->reg_ghc |= GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY;
190 else
191 jme->reg_ghc |= GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE;
192 jwrite32f(jme, JME_GHC, jme->reg_ghc);
193}
194
195static inline void
196jme_reset_ghc_speed(struct jme_adapter *jme)
197{
198 jme->reg_ghc &= ~(GHC_SPEED | GHC_DPX);
199 jwrite32f(jme, JME_GHC, jme->reg_ghc);
200}
201
202static inline void
203jme_reset_250A2_workaround(struct jme_adapter *jme)
204{
205 jme->reg_gpreg1 &= ~(GPREG1_HALFMODEPATCH |
206 GPREG1_RSSPATCH);
207 jwrite32(jme, JME_GPREG1, jme->reg_gpreg1);
208}
209
210static inline void
211jme_assert_ghc_reset(struct jme_adapter *jme)
212{
213 jme->reg_ghc |= GHC_SWRST;
214 jwrite32f(jme, JME_GHC, jme->reg_ghc);
215}
216
217static inline void
218jme_clear_ghc_reset(struct jme_adapter *jme)
219{
220 jme->reg_ghc &= ~GHC_SWRST;
221 jwrite32f(jme, JME_GHC, jme->reg_ghc);
222}
223
cd0ff491 224static inline void
3bf61c55
GFT		 225jme_reset_mac_processor(struct jme_adapter *jme)
226{
0d8a2973 227 static const u32 mask[WAKEUP_FRAME_MASK_DWNR] = {0, 0, 0, 0};
cd0ff491
GFT		 228 u32 crc = 0xCDCDCDCD;
229 u32 gpreg0;
b3821cc5
GFT		 230 int i;
231
ed830419
GFT		 232 jme_reset_ghc_speed(jme);
233 jme_reset_250A2_workaround(jme);
234
235 jme_mac_rxclk_on(jme);
236 jme_mac_txclk_on(jme);
237 udelay(1);
238 jme_assert_ghc_reset(jme);
239 udelay(1);
240 jme_mac_rxclk_off(jme);
241 jme_mac_txclk_off(jme);
242 udelay(1);
243 jme_clear_ghc_reset(jme);
244 udelay(1);
245 jme_mac_rxclk_on(jme);
246 jme_mac_txclk_on(jme);
247 udelay(1);
248 jme_mac_rxclk_off(jme);
249 jme_mac_txclk_off(jme);
cd0ff491
GFT		 250
251 jwrite32(jme, JME_RXDBA_LO, 0x00000000);
252 jwrite32(jme, JME_RXDBA_HI, 0x00000000);
253 jwrite32(jme, JME_RXQDC, 0x00000000);
254 jwrite32(jme, JME_RXNDA, 0x00000000);
255 jwrite32(jme, JME_TXDBA_LO, 0x00000000);
256 jwrite32(jme, JME_TXDBA_HI, 0x00000000);
257 jwrite32(jme, JME_TXQDC, 0x00000000);
258 jwrite32(jme, JME_TXNDA, 0x00000000);
259
4330c2f2
GFT		 260 jwrite32(jme, JME_RXMCHT_LO, 0x00000000);
261 jwrite32(jme, JME_RXMCHT_HI, 0x00000000);
cd0ff491 262 for (i = 0 ; i < WAKEUP_FRAME_NR ; ++i)
b3821cc5 263 jme_setup_wakeup_frame(jme, mask, crc, i);
cd0ff491 264 if (jme->fpgaver)
cdcdc9eb
GFT		 265 gpreg0 = GPREG0_DEFAULT | GPREG0_LNKINTPOLL;
266 else
267 gpreg0 = GPREG0_DEFAULT;
268 jwrite32(jme, JME_GPREG0, gpreg0);
cd0ff491
GFT		 269}
270
271static inline void
3bf61c55 272jme_clear_pm(struct jme_adapter *jme)
d7699f87 273{
18783c49 274 jwrite32(jme, JME_PMCS, PMCS_STMASK | jme->reg_pmcs);
d7699f87
GFT		 275}
276
3bf61c55
GFT		 277static int
278jme_reload_eeprom(struct jme_adapter *jme)
d7699f87 279{
cd0ff491 280 u32 val;
d7699f87
GFT		 281 int i;
282
283 val = jread32(jme, JME_SMBCSR);
284
cd0ff491 285 if (val & SMBCSR_EEPROMD) {
d7699f87
GFT		 286 val |= SMBCSR_CNACK;
287 jwrite32(jme, JME_SMBCSR, val);
288 val |= SMBCSR_RELOAD;
289 jwrite32(jme, JME_SMBCSR, val);
290 mdelay(12);
291
cd0ff491 292 for (i = JME_EEPROM_RELOAD_TIMEOUT; i > 0; --i) {
d7699f87
GFT		 293 mdelay(1);
294 if ((jread32(jme, JME_SMBCSR) & SMBCSR_RELOAD) == 0)
295 break;
296 }
297
cd0ff491 298 if (i == 0) {
52a46ba8 299 pr_err("eeprom reload timeout\n");
d7699f87
GFT		 300 return -EIO;
301 }
302 }
3bf61c55 303
d7699f87
GFT		 304 return 0;
305}
306
3bf61c55
GFT		 307static void
308jme_load_macaddr(struct net_device *netdev)
d7699f87
GFT		 309{
310 struct jme_adapter *jme = netdev_priv(netdev);
311 unsigned char macaddr[6];
cd0ff491 312 u32 val;
d7699f87 313
cd0ff491 314 spin_lock_bh(&jme->macaddr_lock);
4330c2f2 315 val = jread32(jme, JME_RXUMA_LO);
d7699f87
GFT		 316 macaddr[0] = (val >> 0) & 0xFF;
317 macaddr[1] = (val >> 8) & 0xFF;
318 macaddr[2] = (val >> 16) & 0xFF;
319 macaddr[3] = (val >> 24) & 0xFF;
4330c2f2 320 val = jread32(jme, JME_RXUMA_HI);
d7699f87
GFT		 321 macaddr[4] = (val >> 0) & 0xFF;
322 macaddr[5] = (val >> 8) & 0xFF;
cd0ff491
GFT		 323 memcpy(netdev->dev_addr, macaddr, 6);
324 spin_unlock_bh(&jme->macaddr_lock);
3bf61c55
GFT		 325}
326
cd0ff491 327static inline void
3bf61c55
GFT		 328jme_set_rx_pcc(struct jme_adapter *jme, int p)
329{
cd0ff491 330 switch (p) {
192570e0
GFT		 331 case PCC_OFF:
332 jwrite32(jme, JME_PCCRX0,
333 ((PCC_OFF_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
334 ((PCC_OFF_CNT << PCCRX_SHIFT) & PCCRX_MASK));
335 break;
3bf61c55
GFT		 336 case PCC_P1:
337 jwrite32(jme, JME_PCCRX0,
338 ((PCC_P1_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
339 ((PCC_P1_CNT << PCCRX_SHIFT) & PCCRX_MASK));
340 break;
341 case PCC_P2:
342 jwrite32(jme, JME_PCCRX0,
343 ((PCC_P2_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
344 ((PCC_P2_CNT << PCCRX_SHIFT) & PCCRX_MASK));
345 break;
346 case PCC_P3:
347 jwrite32(jme, JME_PCCRX0,
348 ((PCC_P3_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
349 ((PCC_P3_CNT << PCCRX_SHIFT) & PCCRX_MASK));
350 break;
351 default:
352 break;
353 }
192570e0 354 wmb();
3bf61c55 355
cd0ff491 356 if (!(test_bit(JME_FLAG_POLL, &jme->flags)))
c97b5740 357 netif_info(jme, rx_status, jme->dev, "Switched to PCC_P%d\n", p);
d7699f87
GFT		 358}
359
fcf45b4c 360static void
3bf61c55 361jme_start_irq(struct jme_adapter *jme)
d7699f87 362{
3bf61c55
GFT		 363 register struct dynpcc_info *dpi = &(jme->dpi);
364
365 jme_set_rx_pcc(jme, PCC_P1);
3bf61c55
GFT		 366 dpi->cur = PCC_P1;
367 dpi->attempt = PCC_P1;
368 dpi->cnt = 0;
369
370 jwrite32(jme, JME_PCCTX,
8c198884
GFT		 371 ((PCC_TX_TO << PCCTXTO_SHIFT) & PCCTXTO_MASK) |
372 ((PCC_TX_CNT << PCCTX_SHIFT) & PCCTX_MASK) |
3bf61c55
GFT		 373 PCCTXQ0_EN
374 );
375
d7699f87
GFT		 376 /*
377 * Enable Interrupts
378 */
379 jwrite32(jme, JME_IENS, INTR_ENABLE);
380}
381
cd0ff491 382static inline void
3bf61c55 383jme_stop_irq(struct jme_adapter *jme)
d7699f87
GFT		 384{
385 /*
386 * Disable Interrupts
387 */
cd0ff491 388 jwrite32f(jme, JME_IENC, INTR_ENABLE);
d7699f87
GFT		 389}
390
cd0ff491 391static u32
cdcdc9eb
GFT		 392jme_linkstat_from_phy(struct jme_adapter *jme)
393{
cd0ff491 394 u32 phylink, bmsr;
cdcdc9eb
GFT		 395
396 phylink = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 17);
397 bmsr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMSR);
cd0ff491 398 if (bmsr & BMSR_ANCOMP)
cdcdc9eb
GFT		 399 phylink |= PHY_LINK_AUTONEG_COMPLETE;
400
401 return phylink;
402}
403
cd0ff491 404static inline void
06168a20 405jme_set_phyfifo_5level(struct jme_adapter *jme)
cd0ff491
GFT		 406{
407 jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0004);
408}
409
410static inline void
06168a20 411jme_set_phyfifo_8level(struct jme_adapter *jme)
cd0ff491
GFT		 412{
413 jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0000);
414}
415
fcf45b4c
GFT		 416static int
417jme_check_link(struct net_device *netdev, int testonly)
d7699f87
GFT		 418{
419 struct jme_adapter *jme = netdev_priv(netdev);
ed830419 420 u32 phylink, cnt = JME_SPDRSV_TIMEOUT, bmcr;
79ce639c 421 char linkmsg[64];
fcf45b4c 422 int rc = 0;
d7699f87 423
b3821cc5 424 linkmsg[0] = '\0';
cdcdc9eb 425
cd0ff491 426 if (jme->fpgaver)
cdcdc9eb
GFT		 427 phylink = jme_linkstat_from_phy(jme);
428 else
429 phylink = jread32(jme, JME_PHY_LINK);
d7699f87 430
cd0ff491
GFT		 431 if (phylink & PHY_LINK_UP) {
432 if (!(phylink & PHY_LINK_AUTONEG_COMPLETE)) {
8c198884
GFT		 433 /*
434 * If we did not enable AN
435 * Speed/Duplex Info should be obtained from SMI
436 */
437 phylink = PHY_LINK_UP;
438
439 bmcr = jme_mdio_read(jme->dev,
440 jme->mii_if.phy_id,
441 MII_BMCR);
442
443 phylink |= ((bmcr & BMCR_SPEED1000) &&
444 (bmcr & BMCR_SPEED100) == 0) ?
445 PHY_LINK_SPEED_1000M :
446 (bmcr & BMCR_SPEED100) ?
447 PHY_LINK_SPEED_100M :
448 PHY_LINK_SPEED_10M;
449
450 phylink |= (bmcr & BMCR_FULLDPLX) ?
451 PHY_LINK_DUPLEX : 0;
79ce639c 452
b3821cc5 453 strcat(linkmsg, "Forced: ");
cd0ff491 454 } else {
8c198884
GFT		 455 /*
456 * Keep polling for speed/duplex resolve complete
457 */
cd0ff491 458 while (!(phylink & PHY_LINK_SPEEDDPU_RESOLVED) &&
8c198884
GFT		 459 --cnt) {
460
461 udelay(1);
8c198884 462
cd0ff491 463 if (jme->fpgaver)
cdcdc9eb
GFT		 464 phylink = jme_linkstat_from_phy(jme);
465 else
466 phylink = jread32(jme, JME_PHY_LINK);
8c198884 467 }
cd0ff491 468 if (!cnt)
52a46ba8 469 pr_err("Waiting speed resolve timeout\n");
79ce639c 470
b3821cc5 471 strcat(linkmsg, "ANed: ");
d7699f87
GFT		 472 }
473
cd0ff491 474 if (jme->phylink == phylink) {
fcf45b4c
GFT		 475 rc = 1;
476 goto out;
477 }
cd0ff491 478 if (testonly)
fcf45b4c
GFT		 479 goto out;
480
481 jme->phylink = phylink;
482
ed830419
GFT		 483 /*
484 * The speed/duplex setting of jme->reg_ghc already cleared
485 * by jme_reset_mac_processor()
486 */
cd0ff491
GFT		 487 switch (phylink & PHY_LINK_SPEED_MASK) {
488 case PHY_LINK_SPEED_10M:
ed830419 489 jme->reg_ghc |= GHC_SPEED_10M;
cd0ff491 490 strcat(linkmsg, "10 Mbps, ");
cd0ff491
GFT		 491 break;
492 case PHY_LINK_SPEED_100M:
ed830419 493 jme->reg_ghc |= GHC_SPEED_100M;
cd0ff491 494 strcat(linkmsg, "100 Mbps, ");
cd0ff491
GFT		 495 break;
496 case PHY_LINK_SPEED_1000M:
ed830419 497 jme->reg_ghc |= GHC_SPEED_1000M;
cd0ff491 498 strcat(linkmsg, "1000 Mbps, ");
cd0ff491
GFT		 499 break;
500 default:
501 break;
d7699f87 502 }
d7699f87 503
cd0ff491 504 if (phylink & PHY_LINK_DUPLEX) {
d7699f87 505 jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT);
19bbc546 506 jwrite32(jme, JME_TXTRHD, TXTRHD_FULLDUPLEX);
ed830419 507 jme->reg_ghc |= GHC_DPX;
cd0ff491 508 } else {
d7699f87 509 jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT |
3bf61c55
GFT		 510 TXMCS_BACKOFF |
511 TXMCS_CARRIERSENSE |
512 TXMCS_COLLISION);
19bbc546 513 jwrite32(jme, JME_TXTRHD, TXTRHD_HALFDUPLEX);
8c198884 514 }
9b9d55de 515
ed830419
GFT		 516 jwrite32(jme, JME_GHC, jme->reg_ghc);
517
9b9d55de 518 if (is_buggy250(jme->pdev->device, jme->chiprev)) {
ed830419
GFT		 519 jme->reg_gpreg1 &= ~(GPREG1_HALFMODEPATCH |
520 GPREG1_RSSPATCH);
9b9d55de 521 if (!(phylink & PHY_LINK_DUPLEX))
ed830419 522 jme->reg_gpreg1 |= GPREG1_HALFMODEPATCH;
9b9d55de
GFT		 523 switch (phylink & PHY_LINK_SPEED_MASK) {
524 case PHY_LINK_SPEED_10M:
06168a20 525 jme_set_phyfifo_8level(jme);
ed830419 526 jme->reg_gpreg1 |= GPREG1_RSSPATCH;
9b9d55de
GFT		 527 break;
528 case PHY_LINK_SPEED_100M:
06168a20 529 jme_set_phyfifo_5level(jme);
ed830419 530 jme->reg_gpreg1 |= GPREG1_RSSPATCH;
9b9d55de
GFT		 531 break;
532 case PHY_LINK_SPEED_1000M:
06168a20 533 jme_set_phyfifo_8level(jme);
9b9d55de
GFT		 534 break;
535 default:
536 break;
537 }
538 }
ed830419 539 jwrite32(jme, JME_GPREG1, jme->reg_gpreg1);
fcf45b4c 540
94c5ea02
GFT		 541 strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ?
542 "Full-Duplex, " :
543 "Half-Duplex, ");
544 strcat(linkmsg, (phylink & PHY_LINK_MDI_STAT) ?
545 "MDI-X" :
546 "MDI");
52a46ba8 547 netif_info(jme, link, jme->dev, "Link is up at %s\n", linkmsg);
cd0ff491
GFT		 548 netif_carrier_on(netdev);
549 } else {
550 if (testonly)
fcf45b4c
GFT		 551 goto out;
552
52a46ba8 553 netif_info(jme, link, jme->dev, "Link is down\n");
fcf45b4c 554 jme->phylink = 0;
cd0ff491 555 netif_carrier_off(netdev);
d7699f87 556 }
fcf45b4c
GFT		 557
558out:
559 return rc;
d7699f87
GFT		 560}
561
3bf61c55
GFT		 562static int
563jme_setup_tx_resources(struct jme_adapter *jme)
d7699f87 564{
d7699f87
GFT		 565 struct jme_ring *txring = &(jme->txring[0]);
566
567 txring->alloc = dma_alloc_coherent(&(jme->pdev->dev),
b3821cc5
GFT		 568 TX_RING_ALLOC_SIZE(jme->tx_ring_size),
569 &(txring->dmaalloc),
570 GFP_ATOMIC);
fcf45b4c 571
fa97b924
GFT		 572 if (!txring->alloc)
573 goto err_set_null;
d7699f87
GFT		 574
575 /*
576 * 16 Bytes align
577 */
cd0ff491 578 txring->desc = (void *)ALIGN((unsigned long)(txring->alloc),
3bf61c55 579 RING_DESC_ALIGN);
4330c2f2 580 txring->dma = ALIGN(txring->dmaalloc, RING_DESC_ALIGN);
d7699f87 581 txring->next_to_use = 0;
cdcdc9eb 582 atomic_set(&txring->next_to_clean, 0);
b3821cc5 583 atomic_set(&txring->nr_free, jme->tx_ring_size);
d7699f87 584
fa97b924
GFT		 585 txring->bufinf = kmalloc(sizeof(struct jme_buffer_info) *
586 jme->tx_ring_size, GFP_ATOMIC);
587 if (unlikely(!(txring->bufinf)))
588 goto err_free_txring;
589
d7699f87 590 /*
b3821cc5 591 * Initialize Transmit Descriptors
d7699f87 592 */
b3821cc5 593 memset(txring->alloc, 0, TX_RING_ALLOC_SIZE(jme->tx_ring_size));
3bf61c55 594 memset(txring->bufinf, 0,
b3821cc5 595 sizeof(struct jme_buffer_info) * jme->tx_ring_size);
d7699f87
GFT		 596
597 return 0;
fa97b924
GFT		 598
599err_free_txring:
600 dma_free_coherent(&(jme->pdev->dev),
601 TX_RING_ALLOC_SIZE(jme->tx_ring_size),
602 txring->alloc,
603 txring->dmaalloc);
604
605err_set_null:
606 txring->desc = NULL;
607 txring->dmaalloc = 0;
608 txring->dma = 0;
609 txring->bufinf = NULL;
610
611 return -ENOMEM;
d7699f87
GFT		 612}
613
3bf61c55
GFT		 614static void
615jme_free_tx_resources(struct jme_adapter *jme)
d7699f87
GFT		 616{
617 int i;
618 struct jme_ring *txring = &(jme->txring[0]);
fa97b924 619 struct jme_buffer_info *txbi;
d7699f87 620
cd0ff491 621 if (txring->alloc) {
fa97b924
GFT		 622 if (txring->bufinf) {
623 for (i = 0 ; i < jme->tx_ring_size ; ++i) {
624 txbi = txring->bufinf + i;
625 if (txbi->skb) {
626 dev_kfree_skb(txbi->skb);
627 txbi->skb = NULL;
628 }
629 txbi->mapping = 0;
630 txbi->len = 0;
631 txbi->nr_desc = 0;
632 txbi->start_xmit = 0;
d7699f87 633 }
fa97b924 634 kfree(txring->bufinf);
d7699f87
GFT		 635 }
636
637 dma_free_coherent(&(jme->pdev->dev),
b3821cc5 638 TX_RING_ALLOC_SIZE(jme->tx_ring_size),
d7699f87
GFT		 639 txring->alloc,
640 txring->dmaalloc);
3bf61c55
GFT		 641
642 txring->alloc = NULL;
643 txring->desc = NULL;
644 txring->dmaalloc = 0;
645 txring->dma = 0;
fa97b924 646 txring->bufinf = NULL;
d7699f87 647 }
3bf61c55 648 txring->next_to_use = 0;
cdcdc9eb 649 atomic_set(&txring->next_to_clean, 0);
79ce639c 650 atomic_set(&txring->nr_free, 0);
d7699f87
GFT		 651}
652
cd0ff491 653static inline void
3bf61c55 654jme_enable_tx_engine(struct jme_adapter *jme)
d7699f87
GFT		 655{
656 /*
657 * Select Queue 0
658 */
659 jwrite32(jme, JME_TXCS, TXCS_DEFAULT | TXCS_SELECT_QUEUE0);
cd0ff491 660 wmb();
d7699f87
GFT		 661
662 /*
663 * Setup TX Queue 0 DMA Bass Address
664 */
fcf45b4c 665 jwrite32(jme, JME_TXDBA_LO, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL);
3bf61c55 666 jwrite32(jme, JME_TXDBA_HI, (__u64)(jme->txring[0].dma) >> 32);
fcf45b4c 667 jwrite32(jme, JME_TXNDA, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL);
d7699f87
GFT		 668
669 /*
670 * Setup TX Descptor Count
671 */
b3821cc5 672 jwrite32(jme, JME_TXQDC, jme->tx_ring_size);
d7699f87
GFT		 673
674 /*
675 * Enable TX Engine
676 */
677 wmb();
ed830419 678 jwrite32f(jme, JME_TXCS, jme->reg_txcs |
4330c2f2
GFT		 679 TXCS_SELECT_QUEUE0 |
680 TXCS_ENABLE);
d7699f87 681
ed830419
GFT		 682 /*
683 * Start clock for TX MAC Processor
684 */
685 jme_mac_txclk_on(jme);
d7699f87
GFT		 686}
687
cd0ff491 688static inline void
29bdd921
GFT		 689jme_restart_tx_engine(struct jme_adapter *jme)
690{
691 /*
692 * Restart TX Engine
693 */
694 jwrite32(jme, JME_TXCS, jme->reg_txcs |
695 TXCS_SELECT_QUEUE0 |
696 TXCS_ENABLE);
697}
698
cd0ff491 699static inline void
3bf61c55 700jme_disable_tx_engine(struct jme_adapter *jme)
d7699f87
GFT		 701{
702 int i;
cd0ff491 703 u32 val;
d7699f87
GFT		 704
705 /*
706 * Disable TX Engine
707 */
fcf45b4c 708 jwrite32(jme, JME_TXCS, jme->reg_txcs | TXCS_SELECT_QUEUE0);
cd0ff491 709 wmb();
d7699f87
GFT		 710
711 val = jread32(jme, JME_TXCS);
cd0ff491 712 for (i = JME_TX_DISABLE_TIMEOUT ; (val & TXCS_ENABLE) && i > 0 ; --i) {
fcf45b4c 713 mdelay(1);
d7699f87 714 val = jread32(jme, JME_TXCS);
cd0ff491 715 rmb();
d7699f87
GFT		 716 }
717
cd0ff491 718 if (!i)
52a46ba8 719 pr_err("Disable TX engine timeout\n");
ed830419
GFT		 720
721 /*
722 * Stop clock for TX MAC Processor
723 */
724 jme_mac_txclk_off(jme);
d7699f87
GFT		 725}
726
3bf61c55
GFT		 727static void
728jme_set_clean_rxdesc(struct jme_adapter *jme, int i)
d7699f87 729{
fa97b924 730 struct jme_ring *rxring = &(jme->rxring[0]);
cd0ff491 731 register struct rxdesc *rxdesc = rxring->desc;
4330c2f2
GFT		 732 struct jme_buffer_info *rxbi = rxring->bufinf;
733 rxdesc += i;
734 rxbi += i;
735
736 rxdesc->dw[0] = 0;
737 rxdesc->dw[1] = 0;
3bf61c55 738 rxdesc->desc1.bufaddrh = cpu_to_le32((__u64)rxbi->mapping >> 32);
fcf45b4c
GFT		 739 rxdesc->desc1.bufaddrl = cpu_to_le32(
740 (__u64)rxbi->mapping & 0xFFFFFFFFUL);
3bf61c55 741 rxdesc->desc1.datalen = cpu_to_le16(rxbi->len);
cd0ff491 742 if (jme->dev->features & NETIF_F_HIGHDMA)
3bf61c55 743 rxdesc->desc1.flags = RXFLAG_64BIT;
d7699f87 744 wmb();
3bf61c55 745 rxdesc->desc1.flags |= RXFLAG_OWN | RXFLAG_INT;
d7699f87
GFT		 746}
747
3bf61c55
GFT		 748static int
749jme_make_new_rx_buf(struct jme_adapter *jme, int i)
4330c2f2
GFT		 750{
751 struct jme_ring *rxring = &(jme->rxring[0]);
b3821cc5 752 struct jme_buffer_info *rxbi = rxring->bufinf + i;
cd0ff491 753 struct sk_buff *skb;
52edb99a 754 dma_addr_t mapping;
4330c2f2 755
79ce639c
GFT		 756 skb = netdev_alloc_skb(jme->dev,
757 jme->dev->mtu + RX_EXTRA_LEN);
cd0ff491 758 if (unlikely(!skb))
4330c2f2 759 return -ENOMEM;
3bf61c55 760
52edb99a
GFT		 761 mapping = pci_map_page(jme->pdev, virt_to_page(skb->data),
762 offset_in_page(skb->data), skb_tailroom(skb),
763 PCI_DMA_FROMDEVICE);
764 if (unlikely(pci_dma_mapping_error(jme->pdev, mapping))) {
765 dev_kfree_skb(skb);
766 return -ENOMEM;
767 }
768
769 if (likely(rxbi->mapping))
770 pci_unmap_page(jme->pdev, rxbi->mapping,
771 rxbi->len, PCI_DMA_FROMDEVICE);
772
4330c2f2 773 rxbi->skb = skb;
3bf61c55 774 rxbi->len = skb_tailroom(skb);
52edb99a 775 rxbi->mapping = mapping;
4330c2f2
GFT		 776 return 0;
777}
778
3bf61c55
GFT		 779static void
780jme_free_rx_buf(struct jme_adapter *jme, int i)
4330c2f2
GFT		 781{
782 struct jme_ring *rxring = &(jme->rxring[0]);
783 struct jme_buffer_info *rxbi = rxring->bufinf;
784 rxbi += i;
785
cd0ff491 786 if (rxbi->skb) {
b3821cc5 787 pci_unmap_page(jme->pdev,
4330c2f2 788 rxbi->mapping,
3bf61c55 789 rxbi->len,
4330c2f2
GFT		 790 PCI_DMA_FROMDEVICE);
791 dev_kfree_skb(rxbi->skb);
792 rxbi->skb = NULL;
793 rxbi->mapping = 0;
3bf61c55 794 rxbi->len = 0;
4330c2f2
GFT		 795 }
796}
797
3bf61c55
GFT		 798static void
799jme_free_rx_resources(struct jme_adapter *jme)
800{
801 int i;
802 struct jme_ring *rxring = &(jme->rxring[0]);
803
cd0ff491 804 if (rxring->alloc) {
fa97b924
GFT		 805 if (rxring->bufinf) {
806 for (i = 0 ; i < jme->rx_ring_size ; ++i)
807 jme_free_rx_buf(jme, i);
808 kfree(rxring->bufinf);
809 }
3bf61c55
GFT		 810
811 dma_free_coherent(&(jme->pdev->dev),
b3821cc5 812 RX_RING_ALLOC_SIZE(jme->rx_ring_size),
3bf61c55
GFT		 813 rxring->alloc,
814 rxring->dmaalloc);
815 rxring->alloc = NULL;
816 rxring->desc = NULL;
817 rxring->dmaalloc = 0;
818 rxring->dma = 0;
fa97b924 819 rxring->bufinf = NULL;
3bf61c55
GFT		 820 }
821 rxring->next_to_use = 0;
cdcdc9eb 822 atomic_set(&rxring->next_to_clean, 0);
3bf61c55
GFT		 823}
824
825static int
826jme_setup_rx_resources(struct jme_adapter *jme)
d7699f87
GFT		 827{
828 int i;
829 struct jme_ring *rxring = &(jme->rxring[0]);
830
831 rxring->alloc = dma_alloc_coherent(&(jme->pdev->dev),
b3821cc5
GFT		 832 RX_RING_ALLOC_SIZE(jme->rx_ring_size),
833 &(rxring->dmaalloc),
834 GFP_ATOMIC);
fa97b924
GFT		 835 if (!rxring->alloc)
836 goto err_set_null;
d7699f87
GFT		 837
838 /*
839 * 16 Bytes align
840 */
cd0ff491 841 rxring->desc = (void *)ALIGN((unsigned long)(rxring->alloc),
3bf61c55 842 RING_DESC_ALIGN);
4330c2f2 843 rxring->dma = ALIGN(rxring->dmaalloc, RING_DESC_ALIGN);
d7699f87 844 rxring->next_to_use = 0;
cdcdc9eb 845 atomic_set(&rxring->next_to_clean, 0);
d7699f87 846
fa97b924
GFT		 847 rxring->bufinf = kmalloc(sizeof(struct jme_buffer_info) *
848 jme->rx_ring_size, GFP_ATOMIC);
849 if (unlikely(!(rxring->bufinf)))
850 goto err_free_rxring;
851
d7699f87
GFT		 852 /*
853 * Initiallize Receive Descriptors
854 */
fa97b924
GFT		 855 memset(rxring->bufinf, 0,
856 sizeof(struct jme_buffer_info) * jme->rx_ring_size);
cd0ff491
GFT		 857 for (i = 0 ; i < jme->rx_ring_size ; ++i) {
858 if (unlikely(jme_make_new_rx_buf(jme, i))) {
3bf61c55
GFT		 859 jme_free_rx_resources(jme);
860 return -ENOMEM;
861 }
d7699f87
GFT		 862
863 jme_set_clean_rxdesc(jme, i);
864 }
865
d7699f87 866 return 0;
fa97b924
GFT		 867
868err_free_rxring:
869 dma_free_coherent(&(jme->pdev->dev),
870 RX_RING_ALLOC_SIZE(jme->rx_ring_size),
871 rxring->alloc,
872 rxring->dmaalloc);
873err_set_null:
874 rxring->desc = NULL;
875 rxring->dmaalloc = 0;
876 rxring->dma = 0;
877 rxring->bufinf = NULL;
878
879 return -ENOMEM;
d7699f87
GFT		 880}
881
cd0ff491 882static inline void
3bf61c55 883jme_enable_rx_engine(struct jme_adapter *jme)
d7699f87 884{
cd0ff491
GFT		 885 /*
886 * Select Queue 0
887 */
888 jwrite32(jme, JME_RXCS, jme->reg_rxcs |
889 RXCS_QUEUESEL_Q0);
890 wmb();
891
d7699f87
GFT		 892 /*
893 * Setup RX DMA Bass Address
894 */
fa97b924 895 jwrite32(jme, JME_RXDBA_LO, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL);
3bf61c55 896 jwrite32(jme, JME_RXDBA_HI, (__u64)(jme->rxring[0].dma) >> 32);
fa97b924 897 jwrite32(jme, JME_RXNDA, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL);
d7699f87
GFT		 898
899 /*
b3821cc5 900 * Setup RX Descriptor Count
d7699f87 901 */
b3821cc5 902 jwrite32(jme, JME_RXQDC, jme->rx_ring_size);
d7699f87 903
3bf61c55 904 /*
d7699f87
GFT		 905 * Setup Unicast Filter
906 */
bb4c5c8c 907 jme_set_unicastaddr(jme->dev);
d7699f87
GFT		 908 jme_set_multi(jme->dev);
909
910 /*
911 * Enable RX Engine
912 */
913 wmb();
ed830419 914 jwrite32f(jme, JME_RXCS, jme->reg_rxcs |
4330c2f2
GFT		 915 RXCS_QUEUESEL_Q0 |
916 RXCS_ENABLE |
917 RXCS_QST);
ed830419
GFT		 918
919 /*
920 * Start clock for RX MAC Processor
921 */
922 jme_mac_rxclk_on(jme);
d7699f87
GFT		 923}
924
cd0ff491 925static inline void
3bf61c55 926jme_restart_rx_engine(struct jme_adapter *jme)
4330c2f2
GFT		 927{
928 /*
3bf61c55 929 * Start RX Engine
4330c2f2 930 */
79ce639c 931 jwrite32(jme, JME_RXCS, jme->reg_rxcs |
4330c2f2
GFT		 932 RXCS_QUEUESEL_Q0 |
933 RXCS_ENABLE |
934 RXCS_QST);
935}
936
cd0ff491 937static inline void
3bf61c55 938jme_disable_rx_engine(struct jme_adapter *jme)
d7699f87
GFT		 939{
940 int i;
cd0ff491 941 u32 val;
d7699f87
GFT		 942
943 /*
944 * Disable RX Engine
945 */
29bdd921 946 jwrite32(jme, JME_RXCS, jme->reg_rxcs);
cd0ff491 947 wmb();
d7699f87
GFT		 948
949 val = jread32(jme, JME_RXCS);
cd0ff491 950 for (i = JME_RX_DISABLE_TIMEOUT ; (val & RXCS_ENABLE) && i > 0 ; --i) {
29bdd921 951 mdelay(1);
d7699f87 952 val = jread32(jme, JME_RXCS);
cd0ff491 953 rmb();
d7699f87
GFT		 954 }
955
cd0ff491 956 if (!i)
52a46ba8 957 pr_err("Disable RX engine timeout\n");
d7699f87 958
ed830419
GFT		 959 /*
960 * Stop clock for RX MAC Processor
961 */
962 jme_mac_rxclk_off(jme);
d7699f87
GFT		 963}
964
a452eef1
GFT		 965static u16
966jme_udpsum(struct sk_buff *skb)
967{
968 u16 csum = 0xFFFFu;
969
970 if (skb->len < (ETH_HLEN + sizeof(struct iphdr)))
971 return csum;
972 if (skb->protocol != htons(ETH_P_IP))
973 return csum;
974 skb_set_network_header(skb, ETH_HLEN);
975 if ((ip_hdr(skb)->protocol != IPPROTO_UDP) ||
976 (skb->len < (ETH_HLEN +
977 (ip_hdr(skb)->ihl << 2) +
978 sizeof(struct udphdr)))) {
979 skb_reset_network_header(skb);
980 return csum;
981 }
982 skb_set_transport_header(skb,
983 ETH_HLEN + (ip_hdr(skb)->ihl << 2));
984 csum = udp_hdr(skb)->check;
985 skb_reset_transport_header(skb);
986 skb_reset_network_header(skb);
987
988 return csum;
989}
990
192570e0 991static int
a452eef1 992jme_rxsum_ok(struct jme_adapter *jme, u16 flags, struct sk_buff *skb)
192570e0 993{
cd0ff491 994 if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4)))
192570e0
GFT		 995 return false;
996
fa97b924
GFT		 997 if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_TCPON | RXWBFLAG_TCPCS))
998 == RXWBFLAG_TCPON)) {
999 if (flags & RXWBFLAG_IPV4)
c97b5740 1000 netif_err(jme, rx_err, jme->dev, "TCP Checksum error\n");
fa97b924 1001 return false;
192570e0
GFT		 1002 }
1003
fa97b924 1004 if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_UDPON | RXWBFLAG_UDPCS))
a452eef1 1005 == RXWBFLAG_UDPON) && jme_udpsum(skb)) {
fa97b924 1006 if (flags & RXWBFLAG_IPV4)
52a46ba8 1007 netif_err(jme, rx_err, jme->dev, "UDP Checksum error\n");
fa97b924 1008 return false;
192570e0
GFT		 1009 }
1010
fa97b924
GFT		 1011 if (unlikely((flags & (RXWBFLAG_IPV4 | RXWBFLAG_IPCS))
1012 == RXWBFLAG_IPV4)) {
52a46ba8 1013 netif_err(jme, rx_err, jme->dev, "IPv4 Checksum error\n");
fa97b924 1014 return false;
192570e0
GFT		 1015 }
1016
1017 return true;
1018}
1019
3bf61c55 1020static void
42b1055e 1021jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx)
d7699f87 1022{
d7699f87 1023 struct jme_ring *rxring = &(jme->rxring[0]);
cd0ff491 1024 struct rxdesc *rxdesc = rxring->desc;
3bf61c55 1025 struct jme_buffer_info *rxbi = rxring->bufinf;
d7699f87 1026 struct sk_buff *skb;
3bf61c55 1027 int framesize;
d7699f87 1028
3bf61c55
GFT		 1029 rxdesc += idx;
1030 rxbi += idx;
d7699f87 1031
3bf61c55
GFT		 1032 skb = rxbi->skb;
1033 pci_dma_sync_single_for_cpu(jme->pdev,
1034 rxbi->mapping,
1035 rxbi->len,
1036 PCI_DMA_FROMDEVICE);
1037
cd0ff491 1038 if (unlikely(jme_make_new_rx_buf(jme, idx))) {
3bf61c55
GFT		 1039 pci_dma_sync_single_for_device(jme->pdev,
1040 rxbi->mapping,
1041 rxbi->len,
1042 PCI_DMA_FROMDEVICE);
1043
1044 ++(NET_STAT(jme).rx_dropped);
cd0ff491 1045 } else {
3bf61c55
GFT		 1046 framesize = le16_to_cpu(rxdesc->descwb.framesize)
1047 - RX_PREPAD_SIZE;
1048
1049 skb_reserve(skb, RX_PREPAD_SIZE);
1050 skb_put(skb, framesize);
1051 skb->protocol = eth_type_trans(skb, jme->dev);
1052
a452eef1 1053 if (jme_rxsum_ok(jme, le16_to_cpu(rxdesc->descwb.flags), skb))
8c198884 1054 skb->ip_summed = CHECKSUM_UNNECESSARY;
29bdd921 1055 else
97984ab7 1056 skb_checksum_none_assert(skb);
8c198884 1057
94c5ea02 1058 if (rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_TAGON)) {
202bd32d
JP		 1059 u16 vid = le16_to_cpu(rxdesc->descwb.vlan);
1060
1061 __vlan_hwaccel_put_tag(skb, vid);
1062 NET_STAT(jme).rx_bytes += 4;
b3821cc5 1063 }
202bd32d 1064 jme->jme_rx(skb);
3bf61c55 1065
94c5ea02
GFT		 1066 if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_DEST)) ==
1067 cpu_to_le16(RXWBFLAG_DEST_MUL))
3bf61c55
GFT		 1068 ++(NET_STAT(jme).multicast);
1069
3bf61c55
GFT		 1070 NET_STAT(jme).rx_bytes += framesize;
1071 ++(NET_STAT(jme).rx_packets);
1072 }
1073
1074 jme_set_clean_rxdesc(jme, idx);
1075
1076}
1077
1078static int
1079jme_process_receive(struct jme_adapter *jme, int limit)
1080{
1081 struct jme_ring *rxring = &(jme->rxring[0]);
cd0ff491 1082 struct rxdesc *rxdesc = rxring->desc;
b3821cc5 1083 int i, j, ccnt, desccnt, mask = jme->rx_ring_mask;
3bf61c55 1084
cd0ff491 1085 if (unlikely(!atomic_dec_and_test(&jme->rx_cleaning)))
192570e0
GFT		 1086 goto out_inc;
1087
cd0ff491 1088 if (unlikely(atomic_read(&jme->link_changing) != 1))
192570e0
GFT		 1089 goto out_inc;
1090
cd0ff491 1091 if (unlikely(!netif_carrier_ok(jme->dev)))
192570e0
GFT		 1092 goto out_inc;
1093
cdcdc9eb 1094 i = atomic_read(&rxring->next_to_clean);
fa97b924 1095 while (limit > 0) {
3bf61c55
GFT		 1096 rxdesc = rxring->desc;
1097 rxdesc += i;
1098
94c5ea02 1099 if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_OWN)) ||
3bf61c55
GFT		 1100 !(rxdesc->descwb.desccnt & RXWBDCNT_WBCPL))
1101 goto out;
fa97b924 1102 --limit;
d7699f87 1103
1a7a122d 1104 rmb();
4330c2f2
GFT		 1105 desccnt = rxdesc->descwb.desccnt & RXWBDCNT_DCNT;
1106
cd0ff491 1107 if (unlikely(desccnt > 1 ||
192570e0 1108 rxdesc->descwb.errstat & RXWBERR_ALLERR)) {
d7699f87 1109
cd0ff491 1110 if (rxdesc->descwb.errstat & RXWBERR_CRCERR)
3bf61c55 1111 ++(NET_STAT(jme).rx_crc_errors);
cd0ff491 1112 else if (rxdesc->descwb.errstat & RXWBERR_OVERUN)
3bf61c55
GFT		 1113 ++(NET_STAT(jme).rx_fifo_errors);
1114 else
1115 ++(NET_STAT(jme).rx_errors);
4330c2f2 1116
cd0ff491 1117 if (desccnt > 1)
3bf61c55 1118 limit -= desccnt - 1;
4330c2f2 1119
cd0ff491 1120 for (j = i, ccnt = desccnt ; ccnt-- ; ) {
4330c2f2 1121 jme_set_clean_rxdesc(jme, j);
b3821cc5 1122 j = (j + 1) & (mask);
4330c2f2 1123 }
3bf61c55 1124
cd0ff491 1125 } else {
42b1055e 1126 jme_alloc_and_feed_skb(jme, i);
3bf61c55 1127 }
4330c2f2 1128
b3821cc5 1129 i = (i + desccnt) & (mask);
3bf61c55 1130 }
4330c2f2 1131
3bf61c55 1132out:
cdcdc9eb 1133 atomic_set(&rxring->next_to_clean, i);
4330c2f2 1134
192570e0
GFT		 1135out_inc:
1136 atomic_inc(&jme->rx_cleaning);
1137
3bf61c55 1138 return limit > 0 ? limit : 0;
4330c2f2 1139
3bf61c55 1140}
d7699f87 1141
79ce639c
GFT		 1142static void
1143jme_attempt_pcc(struct dynpcc_info *dpi, int atmp)
1144{
cd0ff491 1145 if (likely(atmp == dpi->cur)) {
192570e0 1146 dpi->cnt = 0;
79ce639c 1147 return;
192570e0 1148 }
79ce639c 1149
cd0ff491 1150 if (dpi->attempt == atmp) {
79ce639c 1151 ++(dpi->cnt);
cd0ff491 1152 } else {
79ce639c
GFT		 1153 dpi->attempt = atmp;
1154 dpi->cnt = 0;
1155 }
1156
1157}
1158
1159static void
1160jme_dynamic_pcc(struct jme_adapter *jme)
1161{
1162 register struct dynpcc_info *dpi = &(jme->dpi);
1163
cd0ff491 1164 if ((NET_STAT(jme).rx_bytes - dpi->last_bytes) > PCC_P3_THRESHOLD)
79ce639c 1165 jme_attempt_pcc(dpi, PCC_P3);
c97b5740
GFT		 1166 else if ((NET_STAT(jme).rx_packets - dpi->last_pkts) > PCC_P2_THRESHOLD ||
1167 dpi->intr_cnt > PCC_INTR_THRESHOLD)
79ce639c
GFT		 1168 jme_attempt_pcc(dpi, PCC_P2);
1169 else
1170 jme_attempt_pcc(dpi, PCC_P1);
1171
cd0ff491
GFT		 1172 if (unlikely(dpi->attempt != dpi->cur && dpi->cnt > 5)) {
1173 if (dpi->attempt < dpi->cur)
1174 tasklet_schedule(&jme->rxclean_task);
79ce639c
GFT		 1175 jme_set_rx_pcc(jme, dpi->attempt);
1176 dpi->cur = dpi->attempt;
1177 dpi->cnt = 0;
1178 }
1179}
1180
1181static void
1182jme_start_pcc_timer(struct jme_adapter *jme)
1183{
1184 struct dynpcc_info *dpi = &(jme->dpi);
1185 dpi->last_bytes = NET_STAT(jme).rx_bytes;
1186 dpi->last_pkts = NET_STAT(jme).rx_packets;
1187 dpi->intr_cnt = 0;
1188 jwrite32(jme, JME_TMCSR,
1189 TMCSR_EN | ((0xFFFFFF - PCC_INTERVAL_US) & TMCSR_CNT));
1190}
1191
cd0ff491 1192static inline void
29bdd921
GFT		 1193jme_stop_pcc_timer(struct jme_adapter *jme)
1194{
1195 jwrite32(jme, JME_TMCSR, 0);
1196}
1197
cd0ff491
GFT		 1198static void
1199jme_shutdown_nic(struct jme_adapter *jme)
1200{
1201 u32 phylink;
1202
1203 phylink = jme_linkstat_from_phy(jme);
1204
1205 if (!(phylink & PHY_LINK_UP)) {
1206 /*
1207 * Disable all interrupt before issue timer
1208 */
1209 jme_stop_irq(jme);
1210 jwrite32(jme, JME_TIMER2, TMCSR_EN | 0xFFFFFE);
1211 }
1212}
1213
79ce639c
GFT		 1214static void
1215jme_pcc_tasklet(unsigned long arg)
1216{
cd0ff491 1217 struct jme_adapter *jme = (struct jme_adapter *)arg;
79ce639c
GFT		 1218 struct net_device *netdev = jme->dev;
1219
cd0ff491
GFT		 1220 if (unlikely(test_bit(JME_FLAG_SHUTDOWN, &jme->flags))) {
1221 jme_shutdown_nic(jme);
1222 return;
1223 }
29bdd921 1224
cd0ff491 1225 if (unlikely(!netif_carrier_ok(netdev) ||
29bdd921
GFT		 1226 (atomic_read(&jme->link_changing) != 1)
1227 )) {
1228 jme_stop_pcc_timer(jme);
79ce639c
GFT		 1229 return;
1230 }
29bdd921 1231
cd0ff491 1232 if (!(test_bit(JME_FLAG_POLL, &jme->flags)))
192570e0
GFT		 1233 jme_dynamic_pcc(jme);
1234
79ce639c
GFT		 1235 jme_start_pcc_timer(jme);
1236}
1237
cd0ff491 1238static inline void
192570e0
GFT		 1239jme_polling_mode(struct jme_adapter *jme)
1240{
1241 jme_set_rx_pcc(jme, PCC_OFF);
1242}
1243
cd0ff491 1244static inline void
192570e0
GFT		 1245jme_interrupt_mode(struct jme_adapter *jme)
1246{
1247 jme_set_rx_pcc(jme, PCC_P1);
1248}
1249
cd0ff491
GFT		 1250static inline int
1251jme_pseudo_hotplug_enabled(struct jme_adapter *jme)
1252{
1253 u32 apmc;
1254 apmc = jread32(jme, JME_APMC);
1255 return apmc & JME_APMC_PSEUDO_HP_EN;
1256}
1257
1258static void
1259jme_start_shutdown_timer(struct jme_adapter *jme)
1260{
1261 u32 apmc;
1262
1263 apmc = jread32(jme, JME_APMC) | JME_APMC_PCIE_SD_EN;
1264 apmc &= ~JME_APMC_EPIEN_CTRL;
1265 if (!no_extplug) {
1266 jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_EN);
1267 wmb();
1268 }
1269 jwrite32f(jme, JME_APMC, apmc);
1270
1271 jwrite32f(jme, JME_TIMER2, 0);
1272 set_bit(JME_FLAG_SHUTDOWN, &jme->flags);
1273 jwrite32(jme, JME_TMCSR,
1274 TMCSR_EN | ((0xFFFFFF - APMC_PHP_SHUTDOWN_DELAY) & TMCSR_CNT));
1275}
1276
1277static void
1278jme_stop_shutdown_timer(struct jme_adapter *jme)
1279{
1280 u32 apmc;
1281
1282 jwrite32f(jme, JME_TMCSR, 0);
1283 jwrite32f(jme, JME_TIMER2, 0);
1284 clear_bit(JME_FLAG_SHUTDOWN, &jme->flags);
1285
1286 apmc = jread32(jme, JME_APMC);
1287 apmc &= ~(JME_APMC_PCIE_SD_EN | JME_APMC_EPIEN_CTRL);
1288 jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_DIS);
1289 wmb();
1290 jwrite32f(jme, JME_APMC, apmc);
1291}
1292
3bf61c55
GFT		 1293static void
1294jme_link_change_tasklet(unsigned long arg)
1295{
cd0ff491 1296 struct jme_adapter *jme = (struct jme_adapter *)arg;
fcf45b4c 1297 struct net_device *netdev = jme->dev;
fcf45b4c
GFT		 1298 int rc;
1299
cd0ff491
GFT		 1300 while (!atomic_dec_and_test(&jme->link_changing)) {
1301 atomic_inc(&jme->link_changing);
52a46ba8 1302 netif_info(jme, intr, jme->dev, "Get link change lock failed\n");
e882564f 1303 while (atomic_read(&jme->link_changing) != 1)
52a46ba8 1304 netif_info(jme, intr, jme->dev, "Waiting link change lock\n");
cd0ff491 1305 }
fcf45b4c 1306
cd0ff491 1307 if (jme_check_link(netdev, 1) && jme->old_mtu == netdev->mtu)
fcf45b4c
GFT		 1308 goto out;
1309
29bdd921 1310 jme->old_mtu = netdev->mtu;
fcf45b4c 1311 netif_stop_queue(netdev);
cd0ff491
GFT		 1312 if (jme_pseudo_hotplug_enabled(jme))
1313 jme_stop_shutdown_timer(jme);
1314
1315 jme_stop_pcc_timer(jme);
1316 tasklet_disable(&jme->txclean_task);
1317 tasklet_disable(&jme->rxclean_task);
1318 tasklet_disable(&jme->rxempty_task);
1319
1320 if (netif_carrier_ok(netdev)) {
cd0ff491
GFT		 1321 jme_disable_rx_engine(jme);
1322 jme_disable_tx_engine(jme);
fcf45b4c
GFT		 1323 jme_reset_mac_processor(jme);
1324 jme_free_rx_resources(jme);
1325 jme_free_tx_resources(jme);
192570e0 1326
cd0ff491 1327 if (test_bit(JME_FLAG_POLL, &jme->flags))
192570e0 1328 jme_polling_mode(jme);
cd0ff491
GFT		 1329
1330 netif_carrier_off(netdev);
fcf45b4c
GFT		 1331 }
1332
1333 jme_check_link(netdev, 0);
cd0ff491 1334 if (netif_carrier_ok(netdev)) {
fcf45b4c 1335 rc = jme_setup_rx_resources(jme);
cd0ff491 1336 if (rc) {
52a46ba8 1337 pr_err("Allocating resources for RX error, Device STOPPED!\n");
cd0ff491 1338 goto out_enable_tasklet;
fcf45b4c
GFT		 1339 }
1340
fcf45b4c 1341 rc = jme_setup_tx_resources(jme);
cd0ff491 1342 if (rc) {
52a46ba8 1343 pr_err("Allocating resources for TX error, Device STOPPED!\n");
fcf45b4c
GFT		 1344 goto err_out_free_rx_resources;
1345 }
1346
1347 jme_enable_rx_engine(jme);
1348 jme_enable_tx_engine(jme);
1349
1350 netif_start_queue(netdev);
192570e0 1351
cd0ff491 1352 if (test_bit(JME_FLAG_POLL, &jme->flags))
192570e0 1353 jme_interrupt_mode(jme);
192570e0 1354
79ce639c 1355 jme_start_pcc_timer(jme);
cd0ff491
GFT		 1356 } else if (jme_pseudo_hotplug_enabled(jme)) {
1357 jme_start_shutdown_timer(jme);
fcf45b4c
GFT		 1358 }
1359
cd0ff491 1360 goto out_enable_tasklet;
fcf45b4c
GFT		 1361
1362err_out_free_rx_resources:
1363 jme_free_rx_resources(jme);
cd0ff491
GFT		 1364out_enable_tasklet:
1365 tasklet_enable(&jme->txclean_task);
1366 tasklet_hi_enable(&jme->rxclean_task);
1367 tasklet_hi_enable(&jme->rxempty_task);
fcf45b4c
GFT		 1368out:
1369 atomic_inc(&jme->link_changing);
3bf61c55 1370}
d7699f87 1371
3bf61c55
GFT		 1372static void
1373jme_rx_clean_tasklet(unsigned long arg)
1374{
cd0ff491 1375 struct jme_adapter *jme = (struct jme_adapter *)arg;
79ce639c 1376 struct dynpcc_info *dpi = &(jme->dpi);
d7699f87 1377
192570e0
GFT		 1378 jme_process_receive(jme, jme->rx_ring_size);
1379 ++(dpi->intr_cnt);
42b1055e 1380
192570e0 1381}
fcf45b4c 1382
192570e0 1383static int
cdcdc9eb 1384jme_poll(JME_NAPI_HOLDER(holder), JME_NAPI_WEIGHT(budget))
192570e0 1385{
cdcdc9eb 1386 struct jme_adapter *jme = jme_napi_priv(holder);
192570e0 1387 int rest;
fcf45b4c 1388
cdcdc9eb 1389 rest = jme_process_receive(jme, JME_NAPI_WEIGHT_VAL(budget));
fcf45b4c 1390
cd0ff491 1391 while (atomic_read(&jme->rx_empty) > 0) {
cdcdc9eb 1392 atomic_dec(&jme->rx_empty);
192570e0
GFT		 1393 ++(NET_STAT(jme).rx_dropped);
1394 jme_restart_rx_engine(jme);
1395 }
1396 atomic_inc(&jme->rx_empty);
1397
cd0ff491 1398 if (rest) {
cdcdc9eb 1399 JME_RX_COMPLETE(netdev, holder);
192570e0
GFT		 1400 jme_interrupt_mode(jme);
1401 }
1402
cdcdc9eb
GFT		 1403 JME_NAPI_WEIGHT_SET(budget, rest);
1404 return JME_NAPI_WEIGHT_VAL(budget) - rest;
fcf45b4c
GFT		 1405}
1406
1407static void
1408jme_rx_empty_tasklet(unsigned long arg)
1409{
cd0ff491 1410 struct jme_adapter *jme = (struct jme_adapter *)arg;
fcf45b4c 1411
cd0ff491 1412 if (unlikely(atomic_read(&jme->link_changing) != 1))
fcf45b4c
GFT		 1413 return;
1414
cd0ff491 1415 if (unlikely(!netif_carrier_ok(jme->dev)))
fcf45b4c
GFT		 1416 return;
1417
c97b5740 1418 netif_info(jme, rx_status, jme->dev, "RX Queue Full!\n");
29bdd921 1419
fcf45b4c 1420 jme_rx_clean_tasklet(arg);
cdcdc9eb 1421
cd0ff491 1422 while (atomic_read(&jme->rx_empty) > 0) {
cdcdc9eb
GFT		 1423 atomic_dec(&jme->rx_empty);
1424 ++(NET_STAT(jme).rx_dropped);
1425 jme_restart_rx_engine(jme);
1426 }
1427 atomic_inc(&jme->rx_empty);
4330c2f2
GFT		 1428}
1429
b3821cc5
GFT		 1430static void
1431jme_wake_queue_if_stopped(struct jme_adapter *jme)
1432{
fa97b924 1433 struct jme_ring *txring = &(jme->txring[0]);
b3821cc5
GFT		 1434
1435 smp_wmb();
cd0ff491 1436 if (unlikely(netif_queue_stopped(jme->dev) &&
b3821cc5 1437 atomic_read(&txring->nr_free) >= (jme->tx_wake_threshold))) {
52a46ba8 1438 netif_info(jme, tx_done, jme->dev, "TX Queue Waked\n");
b3821cc5 1439 netif_wake_queue(jme->dev);
b3821cc5
GFT		 1440 }
1441
1442}
1443
3bf61c55
GFT		 1444static void
1445jme_tx_clean_tasklet(unsigned long arg)
4330c2f2 1446{
cd0ff491 1447 struct jme_adapter *jme = (struct jme_adapter *)arg;
3bf61c55 1448 struct jme_ring *txring = &(jme->txring[0]);
cd0ff491 1449 struct txdesc *txdesc = txring->desc;
3bf61c55 1450 struct jme_buffer_info *txbi = txring->bufinf, *ctxbi, *ttxbi;
b3821cc5 1451 int i, j, cnt = 0, max, err, mask;
3bf61c55 1452
52a46ba8 1453 tx_dbg(jme, "Into txclean\n");
cd0ff491
GFT		 1454
1455 if (unlikely(!atomic_dec_and_test(&jme->tx_cleaning)))
fcf45b4c
GFT		 1456 goto out;
1457
cd0ff491 1458 if (unlikely(atomic_read(&jme->link_changing) != 1))
fcf45b4c
GFT		 1459 goto out;
1460
cd0ff491 1461 if (unlikely(!netif_carrier_ok(jme->dev)))
fcf45b4c
GFT		 1462 goto out;
1463
b3821cc5
GFT		 1464 max = jme->tx_ring_size - atomic_read(&txring->nr_free);
1465 mask = jme->tx_ring_mask;
3bf61c55 1466
cd0ff491 1467 for (i = atomic_read(&txring->next_to_clean) ; cnt < max ; ) {
3bf61c55
GFT		 1468
1469 ctxbi = txbi + i;
1470
cd0ff491 1471 if (likely(ctxbi->skb &&
b3821cc5 1472 !(txdesc[i].descwb.flags & TXWBFLAG_OWN))) {
8c198884 1473
cd0ff491 1474 tx_dbg(jme, "txclean: %d+%d@%lu\n",
52a46ba8 1475 i, ctxbi->nr_desc, jiffies);
3bf61c55 1476
cd0ff491 1477 err = txdesc[i].descwb.flags & TXWBFLAG_ALLERR;
3bf61c55 1478
cd0ff491 1479 for (j = 1 ; j < ctxbi->nr_desc ; ++j) {
b3821cc5
GFT		 1480 ttxbi = txbi + ((i + j) & (mask));
1481 txdesc[(i + j) & (mask)].dw[0] = 0;
3bf61c55 1482
b3821cc5 1483 pci_unmap_page(jme->pdev,
3bf61c55
GFT		 1484 ttxbi->mapping,
1485 ttxbi->len,
1486 PCI_DMA_TODEVICE);
1487
3bf61c55
GFT		 1488 ttxbi->mapping = 0;
1489 ttxbi->len = 0;
1490 }
1491
1492 dev_kfree_skb(ctxbi->skb);
3bf61c55
GFT		 1493
1494 cnt += ctxbi->nr_desc;
1495
cd0ff491 1496 if (unlikely(err)) {
8c198884 1497 ++(NET_STAT(jme).tx_carrier_errors);
cd0ff491 1498 } else {
8c198884 1499 ++(NET_STAT(jme).tx_packets);
b3821cc5
GFT		 1500 NET_STAT(jme).tx_bytes += ctxbi->len;
1501 }
1502
1503 ctxbi->skb = NULL;
1504 ctxbi->len = 0;
cdcdc9eb 1505 ctxbi->start_xmit = 0;
cd0ff491
GFT		 1506
1507 } else {
3bf61c55
GFT		 1508 break;
1509 }
1510
b3821cc5 1511 i = (i + ctxbi->nr_desc) & mask;
3bf61c55
GFT		 1512
1513 ctxbi->nr_desc = 0;
d7699f87
GFT		 1514 }
1515
52a46ba8 1516 tx_dbg(jme, "txclean: done %d@%lu\n", i, jiffies);
cdcdc9eb 1517 atomic_set(&txring->next_to_clean, i);
79ce639c 1518 atomic_add(cnt, &txring->nr_free);
3bf61c55 1519
b3821cc5
GFT		 1520 jme_wake_queue_if_stopped(jme);
1521
fcf45b4c
GFT		 1522out:
1523 atomic_inc(&jme->tx_cleaning);
d7699f87
GFT		 1524}
1525
79ce639c 1526static void
cd0ff491 1527jme_intr_msi(struct jme_adapter *jme, u32 intrstat)
d7699f87 1528{
3bf61c55
GFT		 1529 /*
1530 * Disable interrupt
1531 */
1532 jwrite32f(jme, JME_IENC, INTR_ENABLE);
d7699f87 1533
cd0ff491 1534 if (intrstat & (INTR_LINKCH | INTR_SWINTR)) {
47220951
GFT		 1535 /*
1536 * Link change event is critical
1537 * all other events are ignored
1538 */
1539 jwrite32(jme, JME_IEVE, intrstat);
3bf61c55 1540 tasklet_schedule(&jme->linkch_task);
29bdd921 1541 goto out_reenable;
fcf45b4c 1542 }
d7699f87 1543
cd0ff491 1544 if (intrstat & INTR_TMINTR) {
47220951 1545 jwrite32(jme, JME_IEVE, INTR_TMINTR);
79ce639c 1546 tasklet_schedule(&jme->pcc_task);
47220951 1547 }
79ce639c 1548
cd0ff491 1549 if (intrstat & (INTR_PCCTXTO | INTR_PCCTX)) {
47220951 1550 jwrite32(jme, JME_IEVE, INTR_PCCTXTO | INTR_PCCTX | INTR_TX0);
4330c2f2 1551 tasklet_schedule(&jme->txclean_task);
47220951
GFT		 1552 }
1553
cd0ff491 1554 if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) {
47220951
GFT		 1555 jwrite32(jme, JME_IEVE, (intrstat & (INTR_PCCRX0TO |
1556 INTR_PCCRX0 |
1557 INTR_RX0EMP)) |
1558 INTR_RX0);
1559 }
d7699f87 1560
cd0ff491
GFT		 1561 if (test_bit(JME_FLAG_POLL, &jme->flags)) {
1562 if (intrstat & INTR_RX0EMP)
192570e0
GFT		 1563 atomic_inc(&jme->rx_empty);
1564
cd0ff491
GFT		 1565 if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) {
1566 if (likely(JME_RX_SCHEDULE_PREP(jme))) {
192570e0 1567 jme_polling_mode(jme);
cdcdc9eb 1568 JME_RX_SCHEDULE(jme);
192570e0
GFT		 1569 }
1570 }
cd0ff491
GFT		 1571 } else {
1572 if (intrstat & INTR_RX0EMP) {
cdcdc9eb 1573 atomic_inc(&jme->rx_empty);
cd0ff491
GFT		 1574 tasklet_hi_schedule(&jme->rxempty_task);
1575 } else if (intrstat & (INTR_PCCRX0TO | INTR_PCCRX0)) {
1576 tasklet_hi_schedule(&jme->rxclean_task);
cdcdc9eb 1577 }
4330c2f2 1578 }
d7699f87 1579
29bdd921 1580out_reenable:
3bf61c55 1581 /*
fcf45b4c 1582 * Re-enable interrupt
3bf61c55 1583 */
fcf45b4c 1584 jwrite32f(jme, JME_IENS, INTR_ENABLE);
79ce639c
GFT		 1585}
1586
1587static irqreturn_t
1588jme_intr(int irq, void *dev_id)
1589{
cd0ff491
GFT		 1590 struct net_device *netdev = dev_id;
1591 struct jme_adapter *jme = netdev_priv(netdev);
1592 u32 intrstat;
79ce639c
GFT		 1593
1594 intrstat = jread32(jme, JME_IEVE);
1595
1596 /*
1597 * Check if it's really an interrupt for us
1598 */
9b9d55de 1599 if (unlikely((intrstat & INTR_ENABLE) == 0))
29bdd921 1600 return IRQ_NONE;
79ce639c
GFT		 1601
1602 /*
1603 * Check if the device still exist
1604 */
cd0ff491
GFT		 1605 if (unlikely(intrstat == ~((typeof(intrstat))0)))
1606 return IRQ_NONE;
79ce639c
GFT		 1607
1608 jme_intr_msi(jme, intrstat);
1609
cd0ff491 1610 return IRQ_HANDLED;
d7699f87
GFT		 1611}
1612
79ce639c
GFT		 1613static irqreturn_t
1614jme_msi(int irq, void *dev_id)
1615{
cd0ff491
GFT		 1616 struct net_device *netdev = dev_id;
1617 struct jme_adapter *jme = netdev_priv(netdev);
1618 u32 intrstat;
79ce639c 1619
fa97b924 1620 intrstat = jread32(jme, JME_IEVE);
79ce639c
GFT		 1621
1622 jme_intr_msi(jme, intrstat);
1623
cd0ff491 1624 return IRQ_HANDLED;
79ce639c
GFT		 1625}
1626
79ce639c
GFT		 1627static void
1628jme_reset_link(struct jme_adapter *jme)
1629{
1630 jwrite32(jme, JME_TMCSR, TMCSR_SWIT);
1631}
1632
fcf45b4c
GFT		 1633static void
1634jme_restart_an(struct jme_adapter *jme)
1635{
cd0ff491 1636 u32 bmcr;
fcf45b4c 1637
cd0ff491 1638 spin_lock_bh(&jme->phy_lock);
fcf45b4c
GFT		 1639 bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
1640 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
1641 jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr);
cd0ff491 1642 spin_unlock_bh(&jme->phy_lock);
79ce639c
GFT		 1643}
1644
1645static int
1646jme_request_irq(struct jme_adapter *jme)
1647{
1648 int rc;
cd0ff491
GFT		 1649 struct net_device *netdev = jme->dev;
1650 irq_handler_t handler = jme_intr;
1651 int irq_flags = IRQF_SHARED;
1652
1653 if (!pci_enable_msi(jme->pdev)) {
1654 set_bit(JME_FLAG_MSI, &jme->flags);
1655 handler = jme_msi;
1656 irq_flags = 0;
1657 }
1658
1659 rc = request_irq(jme->pdev->irq, handler, irq_flags, netdev->name,
1660 netdev);
1661 if (rc) {
52a46ba8
JP		 1662 netdev_err(netdev,
1663 "Unable to request %s interrupt (return: %d)\n",
1664 test_bit(JME_FLAG_MSI, &jme->flags) ? "MSI" : "INTx",
1665 rc);
79ce639c 1666
cd0ff491
GFT		 1667 if (test_bit(JME_FLAG_MSI, &jme->flags)) {
1668 pci_disable_msi(jme->pdev);
1669 clear_bit(JME_FLAG_MSI, &jme->flags);
79ce639c 1670 }
cd0ff491 1671 } else {
79ce639c
GFT		 1672 netdev->irq = jme->pdev->irq;
1673 }
1674
cd0ff491 1675 return rc;
79ce639c
GFT		 1676}
1677
1678static void
1679jme_free_irq(struct jme_adapter *jme)
1680{
cd0ff491
GFT		 1681 free_irq(jme->pdev->irq, jme->dev);
1682 if (test_bit(JME_FLAG_MSI, &jme->flags)) {
1683 pci_disable_msi(jme->pdev);
1684 clear_bit(JME_FLAG_MSI, &jme->flags);
79ce639c 1685 jme->dev->irq = jme->pdev->irq;
cd0ff491 1686 }
fcf45b4c
GFT		 1687}
1688
e4610a83
GFT		 1689static inline void
1690jme_new_phy_on(struct jme_adapter *jme)
1691{
1692 u32 reg;
1693
1694 reg = jread32(jme, JME_PHY_PWR);
1695 reg &= ~(PHY_PWR_DWN1SEL | PHY_PWR_DWN1SW |
1696 PHY_PWR_DWN2 | PHY_PWR_CLKSEL);
1697 jwrite32(jme, JME_PHY_PWR, reg);
1698
1699 pci_read_config_dword(jme->pdev, PCI_PRIV_PE1, &reg);
1700 reg &= ~PE1_GPREG0_PBG;
1701 reg |= PE1_GPREG0_ENBG;
1702 pci_write_config_dword(jme->pdev, PCI_PRIV_PE1, reg);
1703}
1704
1705static inline void
1706jme_new_phy_off(struct jme_adapter *jme)
1707{
1708 u32 reg;
1709
1710 reg = jread32(jme, JME_PHY_PWR);
1711 reg |= PHY_PWR_DWN1SEL | PHY_PWR_DWN1SW |
1712 PHY_PWR_DWN2 | PHY_PWR_CLKSEL;
1713 jwrite32(jme, JME_PHY_PWR, reg);
1714
1715 pci_read_config_dword(jme->pdev, PCI_PRIV_PE1, &reg);
1716 reg &= ~PE1_GPREG0_PBG;
1717 reg |= PE1_GPREG0_PDD3COLD;
1718 pci_write_config_dword(jme->pdev, PCI_PRIV_PE1, reg);
1719}
1720
48db98f7
GFT		 1721static inline void
1722jme_phy_on(struct jme_adapter *jme)
1723{
1724 u32 bmcr;
1725
1726 bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
1727 bmcr &= ~BMCR_PDOWN;
1728 jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr);
e4610a83
GFT		 1729
1730 if (new_phy_power_ctrl(jme->chip_main_rev))
1731 jme_new_phy_on(jme);
1732}
1733
1734static inline void
1735jme_phy_off(struct jme_adapter *jme)
1736{
1737 u32 bmcr;
1738
1739 bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
1740 bmcr |= BMCR_PDOWN;
1741 jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr);
1742
1743 if (new_phy_power_ctrl(jme->chip_main_rev))
1744 jme_new_phy_off(jme);
48db98f7
GFT		 1745}
1746
314d65d8
AL		 1747static int
1748jme_phy_specreg_read(struct jme_adapter *jme, u32 specreg)
1749{
1750 u32 phy_addr;
1751
1752 phy_addr = JM_PHY_SPEC_REG_READ | specreg;
1753 jme_mdio_write(jme->dev, jme->mii_if.phy_id, JM_PHY_SPEC_ADDR_REG,
1754 phy_addr);
1755 return jme_mdio_read(jme->dev, jme->mii_if.phy_id,
1756 JM_PHY_SPEC_DATA_REG);
1757}
1758
1759static void
1760jme_phy_specreg_write(struct jme_adapter *jme, u32 ext_reg, u32 phy_data)
1761{
1762 u32 phy_addr;
1763
1764 phy_addr = JM_PHY_SPEC_REG_WRITE | ext_reg;
1765 jme_mdio_write(jme->dev, jme->mii_if.phy_id, JM_PHY_SPEC_DATA_REG,
1766 phy_data);
1767 jme_mdio_write(jme->dev, jme->mii_if.phy_id, JM_PHY_SPEC_ADDR_REG,
1768 phy_addr);
1769}
1770
1771static int
1772jme_phy_calibration(struct jme_adapter *jme)
1773{
1774 u32 ctrl1000, phy_data;
1775
1776 jme_phy_off(jme);
1777 jme_phy_on(jme);
1778 /* Enabel PHY test mode 1 */
1779 ctrl1000 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_CTRL1000);
1780 ctrl1000 &= ~PHY_GAD_TEST_MODE_MSK;
1781 ctrl1000 |= PHY_GAD_TEST_MODE_1;
1782 jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_CTRL1000, ctrl1000);
1783
1784 phy_data = jme_phy_specreg_read(jme, JM_PHY_EXT_COMM_2_REG);
1785 phy_data &= ~JM_PHY_EXT_COMM_2_CALI_MODE_0;
1786 phy_data |= JM_PHY_EXT_COMM_2_CALI_LATCH |
1787 JM_PHY_EXT_COMM_2_CALI_ENABLE;
1788 jme_phy_specreg_write(jme, JM_PHY_EXT_COMM_2_REG, phy_data);
1789 msleep(20);
1790 phy_data = jme_phy_specreg_read(jme, JM_PHY_EXT_COMM_2_REG);
1791 phy_data &= ~(JM_PHY_EXT_COMM_2_CALI_ENABLE |
1792 JM_PHY_EXT_COMM_2_CALI_MODE_0 |
1793 JM_PHY_EXT_COMM_2_CALI_LATCH);
1794 jme_phy_specreg_write(jme, JM_PHY_EXT_COMM_2_REG, phy_data);
1795
1796 /* Disable PHY test mode */
1797 ctrl1000 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_CTRL1000);
1798 ctrl1000 &= ~PHY_GAD_TEST_MODE_MSK;
1799 jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_CTRL1000, ctrl1000);
1800 return 0;
1801}
1802
1803static int
1804jme_phy_setEA(struct jme_adapter *jme)
1805{
1806 u32 phy_comm0 = 0, phy_comm1 = 0;
1807 u8 nic_ctrl;
1808
1809 pci_read_config_byte(jme->pdev, PCI_PRIV_SHARE_NICCTRL, &nic_ctrl);
1810 if ((nic_ctrl & 0x3) == JME_FLAG_PHYEA_ENABLE)
1811 return 0;
1812
1813 switch (jme->pdev->device) {
1814 case PCI_DEVICE_ID_JMICRON_JMC250:
1815 if (((jme->chip_main_rev == 5) &&
1816 ((jme->chip_sub_rev == 0) || (jme->chip_sub_rev == 1) ||
1817 (jme->chip_sub_rev == 3))) ||
1818 (jme->chip_main_rev >= 6)) {
1819 phy_comm0 = 0x008A;
1820 phy_comm1 = 0x4109;
1821 }
1822 if ((jme->chip_main_rev == 3) &&
1823 ((jme->chip_sub_rev == 1) || (jme->chip_sub_rev == 2)))
1824 phy_comm0 = 0xE088;
1825 break;
1826 case PCI_DEVICE_ID_JMICRON_JMC260:
1827 if (((jme->chip_main_rev == 5) &&
1828 ((jme->chip_sub_rev == 0) || (jme->chip_sub_rev == 1) ||
1829 (jme->chip_sub_rev == 3))) ||
1830 (jme->chip_main_rev >= 6)) {
1831 phy_comm0 = 0x008A;
1832 phy_comm1 = 0x4109;
1833 }
1834 if ((jme->chip_main_rev == 3) &&
1835 ((jme->chip_sub_rev == 1) || (jme->chip_sub_rev == 2)))
1836 phy_comm0 = 0xE088;
1837 if ((jme->chip_main_rev == 2) && (jme->chip_sub_rev == 0))
1838 phy_comm0 = 0x608A;
1839 if ((jme->chip_main_rev == 2) && (jme->chip_sub_rev == 2))
1840 phy_comm0 = 0x408A;
1841 break;
1842 default:
1843 return -ENODEV;
1844 }
1845 if (phy_comm0)
1846 jme_phy_specreg_write(jme, JM_PHY_EXT_COMM_0_REG, phy_comm0);
1847 if (phy_comm1)
1848 jme_phy_specreg_write(jme, JM_PHY_EXT_COMM_1_REG, phy_comm1);
1849
1850 return 0;
1851}
1852
3bf61c55
GFT		 1853static int
1854jme_open(struct net_device *netdev)
d7699f87
GFT		 1855{
1856 struct jme_adapter *jme = netdev_priv(netdev);
cd0ff491 1857 int rc;
79ce639c 1858
42b1055e 1859 jme_clear_pm(jme);
cdcdc9eb 1860 JME_NAPI_ENABLE(jme);
d7699f87 1861
fa97b924 1862 tasklet_enable(&jme->linkch_task);
cd0ff491
GFT		 1863 tasklet_enable(&jme->txclean_task);
1864 tasklet_hi_enable(&jme->rxclean_task);
1865 tasklet_hi_enable(&jme->rxempty_task);
1866
79ce639c 1867 rc = jme_request_irq(jme);
cd0ff491 1868 if (rc)
4330c2f2 1869 goto err_out;
79ce639c 1870
d7699f87 1871 jme_start_irq(jme);
42b1055e 1872
e4610a83
GFT		 1873 jme_phy_on(jme);
1874 if (test_bit(JME_FLAG_SSET, &jme->flags))
42b1055e 1875 jme_set_settings(netdev, &jme->old_ecmd);
e4610a83 1876 else
42b1055e 1877 jme_reset_phy_processor(jme);
314d65d8
AL		 1878 jme_phy_calibration(jme);
1879 jme_phy_setEA(jme);
29bdd921 1880 jme_reset_link(jme);
d7699f87
GFT		 1881
1882 return 0;
1883
d7699f87
GFT		 1884err_out:
1885 netif_stop_queue(netdev);
1886 netif_carrier_off(netdev);
4330c2f2 1887 return rc;
d7699f87
GFT		 1888}
1889
42b1055e
GFT		 1890static void
1891jme_set_100m_half(struct jme_adapter *jme)
1892{
cd0ff491 1893 u32 bmcr, tmp;
42b1055e 1894
fba4bc0c 1895 jme_phy_on(jme);
42b1055e
GFT		 1896 bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
1897 tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 |
1898 BMCR_SPEED1000 | BMCR_FULLDPLX);
1899 tmp |= BMCR_SPEED100;
1900
1901 if (bmcr != tmp)
1902 jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, tmp);
1903
cd0ff491 1904 if (jme->fpgaver)
cdcdc9eb
GFT		 1905 jwrite32(jme, JME_GHC, GHC_SPEED_100M | GHC_LINK_POLL);
1906 else
1907 jwrite32(jme, JME_GHC, GHC_SPEED_100M);
42b1055e
GFT		 1908}
1909
47220951
GFT		 1910#define JME_WAIT_LINK_TIME 2000 /* 2000ms */
1911static void
1912jme_wait_link(struct jme_adapter *jme)
1913{
cd0ff491 1914 u32 phylink, to = JME_WAIT_LINK_TIME;
47220951
GFT		 1915
1916 mdelay(1000);
1917 phylink = jme_linkstat_from_phy(jme);
cd0ff491 1918 while (!(phylink & PHY_LINK_UP) && (to -= 10) > 0) {
47220951
GFT		 1919 mdelay(10);
1920 phylink = jme_linkstat_from_phy(jme);
1921 }
1922}
1923
fba4bc0c
GFT		 1924static void
1925jme_powersave_phy(struct jme_adapter *jme)
1926{
1927 if (jme->reg_pmcs) {
1928 jme_set_100m_half(jme);
fba4bc0c
GFT		 1929 if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN))
1930 jme_wait_link(jme);
18783c49 1931 jme_clear_pm(jme);
fba4bc0c
GFT		 1932 } else {
1933 jme_phy_off(jme);
1934 }
1935}
1936
3bf61c55
GFT		 1937static int
1938jme_close(struct net_device *netdev)
d7699f87
GFT		 1939{
1940 struct jme_adapter *jme = netdev_priv(netdev);
1941
1942 netif_stop_queue(netdev);
1943 netif_carrier_off(netdev);
1944
1945 jme_stop_irq(jme);
79ce639c 1946 jme_free_irq(jme);
d7699f87 1947
cdcdc9eb 1948 JME_NAPI_DISABLE(jme);
192570e0 1949
fa97b924
GFT		 1950 tasklet_disable(&jme->linkch_task);
1951 tasklet_disable(&jme->txclean_task);
1952 tasklet_disable(&jme->rxclean_task);
1953 tasklet_disable(&jme->rxempty_task);
8c198884 1954
cd0ff491
GFT		 1955 jme_disable_rx_engine(jme);
1956 jme_disable_tx_engine(jme);
8c198884 1957 jme_reset_mac_processor(jme);
d7699f87
GFT		 1958 jme_free_rx_resources(jme);
1959 jme_free_tx_resources(jme);
42b1055e 1960 jme->phylink = 0;
b3821cc5
GFT		 1961 jme_phy_off(jme);
1962
1963 return 0;
1964}
1965
1966static int
1967jme_alloc_txdesc(struct jme_adapter *jme,
1968 struct sk_buff *skb)
1969{
fa97b924 1970 struct jme_ring *txring = &(jme->txring[0]);
b3821cc5
GFT		 1971 int idx, nr_alloc, mask = jme->tx_ring_mask;
1972
1973 idx = txring->next_to_use;
1974 nr_alloc = skb_shinfo(skb)->nr_frags + 2;
1975
cd0ff491 1976 if (unlikely(atomic_read(&txring->nr_free) < nr_alloc))
b3821cc5
GFT		 1977 return -1;
1978
1979 atomic_sub(nr_alloc, &txring->nr_free);
42b1055e 1980
b3821cc5
GFT		 1981 txring->next_to_use = (txring->next_to_use + nr_alloc) & mask;
1982
1983 return idx;
1984}
1985
1986static void
1987jme_fill_tx_map(struct pci_dev *pdev,
cd0ff491 1988 struct txdesc *txdesc,
b3821cc5
GFT		 1989 struct jme_buffer_info *txbi,
1990 struct page *page,
cd0ff491
GFT		 1991 u32 page_offset,
1992 u32 len,
f0a10b93 1993 bool hidma)
b3821cc5
GFT		 1994{
1995 dma_addr_t dmaaddr;
1996
1997 dmaaddr = pci_map_page(pdev,
1998 page,
1999 page_offset,
2000 len,
2001 PCI_DMA_TODEVICE);
2002
2003 pci_dma_sync_single_for_device(pdev,
2004 dmaaddr,
2005 len,
2006 PCI_DMA_TODEVICE);
2007
2008 txdesc->dw[0] = 0;
2009 txdesc->dw[1] = 0;
2010 txdesc->desc2.flags = TXFLAG_OWN;
cd0ff491 2011 txdesc->desc2.flags |= (hidma) ? TXFLAG_64BIT : 0;
b3821cc5
GFT		 2012 txdesc->desc2.datalen = cpu_to_le16(len);
2013 txdesc->desc2.bufaddrh = cpu_to_le32((__u64)dmaaddr >> 32);
2014 txdesc->desc2.bufaddrl = cpu_to_le32(
2015 (__u64)dmaaddr & 0xFFFFFFFFUL);
2016
2017 txbi->mapping = dmaaddr;
2018 txbi->len = len;
2019}
2020
2021static void
2022jme_map_tx_skb(struct jme_adapter *jme, struct sk_buff *skb, int idx)
2023{
fa97b924 2024 struct jme_ring *txring = &(jme->txring[0]);
cd0ff491 2025 struct txdesc *txdesc = txring->desc, *ctxdesc;
b3821cc5 2026 struct jme_buffer_info *txbi = txring->bufinf, *ctxbi;
f0a10b93 2027 bool hidma = jme->dev->features & NETIF_F_HIGHDMA;
b3821cc5
GFT		 2028 int i, nr_frags = skb_shinfo(skb)->nr_frags;
2029 int mask = jme->tx_ring_mask;
0da918aa 2030 const struct skb_frag_struct *frag;
cd0ff491 2031 u32 len;
b3821cc5 2032
cd0ff491
GFT		 2033 for (i = 0 ; i < nr_frags ; ++i) {
2034 frag = &skb_shinfo(skb)->frags[i];
b3821cc5
GFT		 2035 ctxdesc = txdesc + ((idx + i + 2) & (mask));
2036 ctxbi = txbi + ((idx + i + 2) & (mask));
2037
608a9fae
IC		 2038 jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi,
2039 skb_frag_page(frag),
0da918aa 2040 frag->page_offset, skb_frag_size(frag), hidma);
42b1055e 2041 }
b3821cc5 2042
cd0ff491 2043 len = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len;
b3821cc5
GFT		 2044 ctxdesc = txdesc + ((idx + 1) & (mask));
2045 ctxbi = txbi + ((idx + 1) & (mask));
2046 jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, virt_to_page(skb->data),
2047 offset_in_page(skb->data), len, hidma);
2048
2049}
2050
2051static int
2052jme_expand_header(struct jme_adapter *jme, struct sk_buff *skb)
2053{
cd0ff491 2054 if (unlikely(skb_shinfo(skb)->gso_size &&
b3821cc5
GFT		 2055 skb_header_cloned(skb) &&
2056 pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) {
2057 dev_kfree_skb(skb);
2058 return -1;
2059 }
2060
2061 return 0;
2062}
2063
2064static int
94c5ea02 2065jme_tx_tso(struct sk_buff *skb, __le16 *mss, u8 *flags)
b3821cc5 2066{
94c5ea02 2067 *mss = cpu_to_le16(skb_shinfo(skb)->gso_size << TXDESC_MSS_SHIFT);
cd0ff491 2068 if (*mss) {
b3821cc5
GFT		 2069 *flags |= TXFLAG_LSEN;
2070
cd0ff491 2071 if (skb->protocol == htons(ETH_P_IP)) {
b3821cc5
GFT		 2072 struct iphdr *iph = ip_hdr(skb);
2073
2074 iph->check = 0;
cd0ff491 2075 tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
b3821cc5
GFT		 2076 iph->daddr, 0,
2077 IPPROTO_TCP,
2078 0);
cd0ff491 2079 } else {
b3821cc5
GFT		 2080 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2081
cd0ff491 2082 tcp_hdr(skb)->check = ~csum_ipv6_magic(&ip6h->saddr,
b3821cc5
GFT		 2083 &ip6h->daddr, 0,
2084 IPPROTO_TCP,
2085 0);
2086 }
2087
2088 return 0;
2089 }
2090
2091 return 1;
2092}
2093
2094static void
cd0ff491 2095jme_tx_csum(struct jme_adapter *jme, struct sk_buff *skb, u8 *flags)
b3821cc5 2096{
cd0ff491
GFT		 2097 if (skb->ip_summed == CHECKSUM_PARTIAL) {
2098 u8 ip_proto;
b3821cc5
GFT		 2099
2100 switch (skb->protocol) {
cd0ff491 2101 case htons(ETH_P_IP):
b3821cc5
GFT		 2102 ip_proto = ip_hdr(skb)->protocol;
2103 break;
cd0ff491 2104 case htons(ETH_P_IPV6):
b3821cc5
GFT		 2105 ip_proto = ipv6_hdr(skb)->nexthdr;
2106 break;
2107 default:
2108 ip_proto = 0;
2109 break;
2110 }
2111
cd0ff491 2112 switch (ip_proto) {
b3821cc5
GFT		 2113 case IPPROTO_TCP:
2114 *flags |= TXFLAG_TCPCS;
2115 break;
2116 case IPPROTO_UDP:
2117 *flags |= TXFLAG_UDPCS;
2118 break;
2119 default:
52a46ba8 2120 netif_err(jme, tx_err, jme->dev, "Error upper layer protocol\n");
b3821cc5
GFT		 2121 break;
2122 }
2123 }
2124}
2125
cd0ff491 2126static inline void
94c5ea02 2127jme_tx_vlan(struct sk_buff *skb, __le16 *vlan, u8 *flags)
b3821cc5 2128{
cd0ff491 2129 if (vlan_tx_tag_present(skb)) {
b3821cc5 2130 *flags |= TXFLAG_TAGON;
94c5ea02 2131 *vlan = cpu_to_le16(vlan_tx_tag_get(skb));
42b1055e 2132 }
b3821cc5
GFT		 2133}
2134
2135static int
94c5ea02 2136jme_fill_tx_desc(struct jme_adapter *jme, struct sk_buff *skb, int idx)
b3821cc5 2137{
fa97b924 2138 struct jme_ring *txring = &(jme->txring[0]);
cd0ff491 2139 struct txdesc *txdesc;
b3821cc5 2140 struct jme_buffer_info *txbi;
cd0ff491 2141 u8 flags;
b3821cc5 2142
cd0ff491 2143 txdesc = (struct txdesc *)txring->desc + idx;
b3821cc5
GFT		 2144 txbi = txring->bufinf + idx;
2145
2146 txdesc->dw[0] = 0;
2147 txdesc->dw[1] = 0;
2148 txdesc->dw[2] = 0;
2149 txdesc->dw[3] = 0;
2150 txdesc->desc1.pktsize = cpu_to_le16(skb->len);
2151 /*
2152 * Set OWN bit at final.
2153 * When kernel transmit faster than NIC.
2154 * And NIC trying to send this descriptor before we tell
2155 * it to start sending this TX queue.
2156 * Other fields are already filled correctly.
2157 */
2158 wmb();
2159 flags = TXFLAG_OWN | TXFLAG_INT;
cd0ff491
GFT		 2160 /*
2161 * Set checksum flags while not tso
2162 */
2163 if (jme_tx_tso(skb, &txdesc->desc1.mss, &flags))
2164 jme_tx_csum(jme, skb, &flags);
b3821cc5 2165 jme_tx_vlan(skb, &txdesc->desc1.vlan, &flags);
94c5ea02 2166 jme_map_tx_skb(jme, skb, idx);
b3821cc5
GFT		 2167 txdesc->desc1.flags = flags;
2168 /*
2169 * Set tx buffer info after telling NIC to send
2170 * For better tx_clean timing
2171 */
2172 wmb();
2173 txbi->nr_desc = skb_shinfo(skb)->nr_frags + 2;
2174 txbi->skb = skb;
2175 txbi->len = skb->len;
cd0ff491
GFT		 2176 txbi->start_xmit = jiffies;
2177 if (!txbi->start_xmit)
8d27293f 2178 txbi->start_xmit = (0UL-1);
d7699f87
GFT		 2179
2180 return 0;
2181}
2182
b3821cc5
GFT		 2183static void
2184jme_stop_queue_if_full(struct jme_adapter *jme)
2185{
fa97b924 2186 struct jme_ring *txring = &(jme->txring[0]);
cd0ff491
GFT		 2187 struct jme_buffer_info *txbi = txring->bufinf;
2188 int idx = atomic_read(&txring->next_to_clean);
cdcdc9eb 2189
cd0ff491 2190 txbi += idx;
b3821cc5
GFT		 2191
2192 smp_wmb();
cd0ff491 2193 if (unlikely(atomic_read(&txring->nr_free) < (MAX_SKB_FRAGS+2))) {
b3821cc5 2194 netif_stop_queue(jme->dev);
52a46ba8 2195 netif_info(jme, tx_queued, jme->dev, "TX Queue Paused\n");
b3821cc5 2196 smp_wmb();
cd0ff491
GFT		 2197 if (atomic_read(&txring->nr_free)
2198 >= (jme->tx_wake_threshold)) {
b3821cc5 2199 netif_wake_queue(jme->dev);
52a46ba8 2200 netif_info(jme, tx_queued, jme->dev, "TX Queue Fast Waked\n");
b3821cc5
GFT		 2201 }
2202 }
2203
cd0ff491 2204 if (unlikely(txbi->start_xmit &&
cdcdc9eb
GFT		 2205 (jiffies - txbi->start_xmit) >= TX_TIMEOUT &&
2206 txbi->skb)) {
2207 netif_stop_queue(jme->dev);
52a46ba8
JP		 2208 netif_info(jme, tx_queued, jme->dev,
2209 "TX Queue Stopped %d@%lu\n", idx, jiffies);
cdcdc9eb 2210 }
b3821cc5
GFT		 2211}
2212
3bf61c55
GFT		 2213/*
2214 * This function is already protected by netif_tx_lock()
2215 */
cd0ff491 2216
c97b5740 2217static netdev_tx_t
3bf61c55 2218jme_start_xmit(struct sk_buff *skb, struct net_device *netdev)
d7699f87 2219{
cd0ff491 2220 struct jme_adapter *jme = netdev_priv(netdev);
b3821cc5 2221 int idx;
d7699f87 2222
cd0ff491 2223 if (unlikely(jme_expand_header(jme, skb))) {
b3821cc5
GFT		 2224 ++(NET_STAT(jme).tx_dropped);
2225 return NETDEV_TX_OK;
2226 }
2227
2228 idx = jme_alloc_txdesc(jme, skb);
79ce639c 2229
cd0ff491 2230 if (unlikely(idx < 0)) {
b3821cc5 2231 netif_stop_queue(netdev);
52a46ba8
JP		 2232 netif_err(jme, tx_err, jme->dev,
2233 "BUG! Tx ring full when queue awake!\n");
d7699f87 2234
cd0ff491 2235 return NETDEV_TX_BUSY;
b3821cc5
GFT		 2236 }
2237
94c5ea02 2238 jme_fill_tx_desc(jme, skb, idx);
b3821cc5 2239
4330c2f2
GFT		 2240 jwrite32(jme, JME_TXCS, jme->reg_txcs |
2241 TXCS_SELECT_QUEUE0 |
2242 TXCS_QUEUE0S |
2243 TXCS_ENABLE);
d7699f87 2244
52a46ba8
JP		 2245 tx_dbg(jme, "xmit: %d+%d@%lu\n",
2246 idx, skb_shinfo(skb)->nr_frags + 2, jiffies);
b3821cc5
GFT		 2247 jme_stop_queue_if_full(jme);
2248
cd0ff491 2249 return NETDEV_TX_OK;
d7699f87
GFT		 2250}
2251
bb4c5c8c
GFT		 2252static void
2253jme_set_unicastaddr(struct net_device *netdev)
2254{
2255 struct jme_adapter *jme = netdev_priv(netdev);
2256 u32 val;
2257
2258 val = (netdev->dev_addr[3] & 0xff) << 24 |
2259 (netdev->dev_addr[2] & 0xff) << 16 |
2260 (netdev->dev_addr[1] & 0xff) << 8 |
2261 (netdev->dev_addr[0] & 0xff);
2262 jwrite32(jme, JME_RXUMA_LO, val);
2263 val = (netdev->dev_addr[5] & 0xff) << 8 |
2264 (netdev->dev_addr[4] & 0xff);
2265 jwrite32(jme, JME_RXUMA_HI, val);
2266}
2267
3bf61c55
GFT		 2268static int
2269jme_set_macaddr(struct net_device *netdev, void *p)
d7699f87 2270{
cd0ff491 2271 struct jme_adapter *jme = netdev_priv(netdev);
d7699f87 2272 struct sockaddr *addr = p;
d7699f87 2273
cd0ff491 2274 if (netif_running(netdev))
d7699f87
GFT		 2275 return -EBUSY;
2276
cd0ff491 2277 spin_lock_bh(&jme->macaddr_lock);
d7699f87 2278 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
bb4c5c8c 2279 jme_set_unicastaddr(netdev);
cd0ff491 2280 spin_unlock_bh(&jme->macaddr_lock);
d7699f87
GFT		 2281
2282 return 0;
2283}
2284
3bf61c55
GFT		 2285static void
2286jme_set_multi(struct net_device *netdev)
d7699f87 2287{
3bf61c55 2288 struct jme_adapter *jme = netdev_priv(netdev);
d7699f87 2289 u32 mc_hash[2] = {};
d7699f87 2290
cd0ff491 2291 spin_lock_bh(&jme->rxmcs_lock);
8c198884
GFT		 2292
2293 jme->reg_rxmcs |= RXMCS_BRDFRAME | RXMCS_UNIFRAME;
d7699f87 2294
cd0ff491 2295 if (netdev->flags & IFF_PROMISC) {
8c198884 2296 jme->reg_rxmcs |= RXMCS_ALLFRAME;
cd0ff491 2297 } else if (netdev->flags & IFF_ALLMULTI) {
8c198884 2298 jme->reg_rxmcs |= RXMCS_ALLMULFRAME;
cd0ff491 2299 } else if (netdev->flags & IFF_MULTICAST) {
d401cb9a 2300 struct netdev_hw_addr *ha;
3bf61c55 2301 int bit_nr;
d7699f87 2302
8c198884 2303 jme->reg_rxmcs |= RXMCS_MULFRAME | RXMCS_MULFILTERED;
d401cb9a
JP		 2304 netdev_for_each_mc_addr(ha, netdev) {
2305 bit_nr = ether_crc(ETH_ALEN, ha->addr) & 0x3F;
cd0ff491
GFT		 2306 mc_hash[bit_nr >> 5] |= 1 << (bit_nr & 0x1F);
2307 }
d7699f87 2308
4330c2f2
GFT		 2309 jwrite32(jme, JME_RXMCHT_LO, mc_hash[0]);
2310 jwrite32(jme, JME_RXMCHT_HI, mc_hash[1]);
d7699f87
GFT		 2311 }
2312
d7699f87 2313 wmb();
8c198884
GFT		 2314 jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
2315
cd0ff491 2316 spin_unlock_bh(&jme->rxmcs_lock);
d7699f87
GFT		 2317}
2318
3bf61c55 2319static int
8c198884 2320jme_change_mtu(struct net_device *netdev, int new_mtu)
d7699f87 2321{
cd0ff491 2322 struct jme_adapter *jme = netdev_priv(netdev);
79ce639c 2323
cd0ff491 2324 if (new_mtu == jme->old_mtu)
29bdd921
GFT		 2325 return 0;
2326
cd0ff491
GFT		 2327 if (((new_mtu + ETH_HLEN) > MAX_ETHERNET_JUMBO_PACKET_SIZE) ||
2328 ((new_mtu) < IPV6_MIN_MTU))
2329 return -EINVAL;
79ce639c 2330
cd0ff491 2331 if (new_mtu > 4000) {
79ce639c
GFT		 2332 jme->reg_rxcs &= ~RXCS_FIFOTHNP;
2333 jme->reg_rxcs |= RXCS_FIFOTHNP_64QW;
2334 jme_restart_rx_engine(jme);
cd0ff491 2335 } else {
79ce639c
GFT		 2336 jme->reg_rxcs &= ~RXCS_FIFOTHNP;
2337 jme->reg_rxcs |= RXCS_FIFOTHNP_128QW;
2338 jme_restart_rx_engine(jme);
2339 }
2340
cd0ff491 2341 netdev->mtu = new_mtu;
aa4d6a67
MM		 2342 netdev_update_features(netdev);
2343
cd0ff491 2344 jme_reset_link(jme);
79ce639c
GFT		 2345
2346 return 0;
d7699f87
GFT		 2347}
2348
8c198884
GFT		 2349static void
2350jme_tx_timeout(struct net_device *netdev)
2351{
cd0ff491 2352 struct jme_adapter *jme = netdev_priv(netdev);
8c198884 2353
cdcdc9eb
GFT		 2354 jme->phylink = 0;
2355 jme_reset_phy_processor(jme);
cd0ff491 2356 if (test_bit(JME_FLAG_SSET, &jme->flags))
cdcdc9eb
GFT		 2357 jme_set_settings(netdev, &jme->old_ecmd);
2358
8c198884 2359 /*
cdcdc9eb 2360 * Force to Reset the link again
8c198884 2361 */
29bdd921 2362 jme_reset_link(jme);
8c198884
GFT		 2363}
2364
f7f428e4
GFT		 2365static inline void jme_pause_rx(struct jme_adapter *jme)
2366{
2367 atomic_dec(&jme->link_changing);
2368
2369 jme_set_rx_pcc(jme, PCC_OFF);
2370 if (test_bit(JME_FLAG_POLL, &jme->flags)) {
2371 JME_NAPI_DISABLE(jme);
2372 } else {
2373 tasklet_disable(&jme->rxclean_task);
2374 tasklet_disable(&jme->rxempty_task);
2375 }
2376}
2377
2378static inline void jme_resume_rx(struct jme_adapter *jme)
2379{
2380 struct dynpcc_info *dpi = &(jme->dpi);
2381
2382 if (test_bit(JME_FLAG_POLL, &jme->flags)) {
2383 JME_NAPI_ENABLE(jme);
2384 } else {
2385 tasklet_hi_enable(&jme->rxclean_task);
2386 tasklet_hi_enable(&jme->rxempty_task);
2387 }
2388 dpi->cur = PCC_P1;
2389 dpi->attempt = PCC_P1;
2390 dpi->cnt = 0;
2391 jme_set_rx_pcc(jme, PCC_P1);
2392
2393 atomic_inc(&jme->link_changing);
2394}
2395
3bf61c55
GFT		 2396static void
2397jme_get_drvinfo(struct net_device *netdev,
2398 struct ethtool_drvinfo *info)
d7699f87 2399{
cd0ff491 2400 struct jme_adapter *jme = netdev_priv(netdev);
d7699f87 2401
3f88967d
RJ		 2402 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
2403 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
2404 strlcpy(info->bus_info, pci_name(jme->pdev), sizeof(info->bus_info));
d7699f87
GFT		 2405}
2406
8c198884
GFT		 2407static int
2408jme_get_regs_len(struct net_device *netdev)
2409{
cd0ff491 2410 return JME_REG_LEN;
8c198884
GFT		 2411}
2412
2413static void
cd0ff491 2414mmapio_memcpy(struct jme_adapter *jme, u32 *p, u32 reg, int len)
8c198884
GFT		 2415{
2416 int i;
2417
cd0ff491 2418 for (i = 0 ; i < len ; i += 4)
79ce639c 2419 p[i >> 2] = jread32(jme, reg + i);
186fc259 2420}
8c198884 2421
186fc259 2422static void
cd0ff491 2423mdio_memcpy(struct jme_adapter *jme, u32 *p, int reg_nr)
186fc259
GFT		 2424{
2425 int i;
cd0ff491 2426 u16 *p16 = (u16 *)p;
186fc259 2427
cd0ff491 2428 for (i = 0 ; i < reg_nr ; ++i)
186fc259 2429 p16[i] = jme_mdio_read(jme->dev, jme->mii_if.phy_id, i);
8c198884
GFT		 2430}
2431
2432static void
2433jme_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
2434{
cd0ff491
GFT		 2435 struct jme_adapter *jme = netdev_priv(netdev);
2436 u32 *p32 = (u32 *)p;
8c198884 2437
186fc259 2438 memset(p, 0xFF, JME_REG_LEN);
8c198884
GFT		 2439
2440 regs->version = 1;
2441 mmapio_memcpy(jme, p32, JME_MAC, JME_MAC_LEN);
2442
2443 p32 += 0x100 >> 2;
2444 mmapio_memcpy(jme, p32, JME_PHY, JME_PHY_LEN);
2445
2446 p32 += 0x100 >> 2;
2447 mmapio_memcpy(jme, p32, JME_MISC, JME_MISC_LEN);
2448
2449 p32 += 0x100 >> 2;
2450 mmapio_memcpy(jme, p32, JME_RSS, JME_RSS_LEN);
2451
186fc259
GFT		 2452 p32 += 0x100 >> 2;
2453 mdio_memcpy(jme, p32, JME_PHY_REG_NR);
8c198884
GFT		 2454}
2455
2456static int
2457jme_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd)
2458{
2459 struct jme_adapter *jme = netdev_priv(netdev);
2460
8c198884
GFT		 2461 ecmd->tx_coalesce_usecs = PCC_TX_TO;
2462 ecmd->tx_max_coalesced_frames = PCC_TX_CNT;
2463
cd0ff491 2464 if (test_bit(JME_FLAG_POLL, &jme->flags)) {
cdcdc9eb
GFT		 2465 ecmd->use_adaptive_rx_coalesce = false;
2466 ecmd->rx_coalesce_usecs = 0;
2467 ecmd->rx_max_coalesced_frames = 0;
2468 return 0;
2469 }
2470
2471 ecmd->use_adaptive_rx_coalesce = true;
2472
cd0ff491 2473 switch (jme->dpi.cur) {
8c198884
GFT		 2474 case PCC_P1:
2475 ecmd->rx_coalesce_usecs = PCC_P1_TO;
2476 ecmd->rx_max_coalesced_frames = PCC_P1_CNT;
2477 break;
2478 case PCC_P2:
2479 ecmd->rx_coalesce_usecs = PCC_P2_TO;
2480 ecmd->rx_max_coalesced_frames = PCC_P2_CNT;
2481 break;
2482 case PCC_P3:
2483 ecmd->rx_coalesce_usecs = PCC_P3_TO;
2484 ecmd->rx_max_coalesced_frames = PCC_P3_CNT;
2485 break;
2486 default:
2487 break;
2488 }
2489
2490 return 0;
2491}
2492
192570e0
GFT		 2493static int
2494jme_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd)
2495{
2496 struct jme_adapter *jme = netdev_priv(netdev);
2497 struct dynpcc_info *dpi = &(jme->dpi);
2498
cd0ff491 2499 if (netif_running(netdev))
cdcdc9eb
GFT		 2500 return -EBUSY;
2501
c97b5740
GFT		 2502 if (ecmd->use_adaptive_rx_coalesce &&
2503 test_bit(JME_FLAG_POLL, &jme->flags)) {
cd0ff491 2504 clear_bit(JME_FLAG_POLL, &jme->flags);
cdcdc9eb 2505 jme->jme_rx = netif_rx;
192570e0
GFT		 2506 dpi->cur = PCC_P1;
2507 dpi->attempt = PCC_P1;
2508 dpi->cnt = 0;
2509 jme_set_rx_pcc(jme, PCC_P1);
2510 jme_interrupt_mode(jme);
c97b5740
GFT		 2511 } else if (!(ecmd->use_adaptive_rx_coalesce) &&
2512 !(test_bit(JME_FLAG_POLL, &jme->flags))) {
cd0ff491 2513 set_bit(JME_FLAG_POLL, &jme->flags);
cdcdc9eb 2514 jme->jme_rx = netif_receive_skb;
192570e0
GFT		 2515 jme_interrupt_mode(jme);
2516 }
2517
2518 return 0;
2519}
2520
8c198884
GFT		 2521static void
2522jme_get_pauseparam(struct net_device *netdev,
2523 struct ethtool_pauseparam *ecmd)
2524{
2525 struct jme_adapter *jme = netdev_priv(netdev);
cd0ff491 2526 u32 val;
8c198884
GFT		 2527
2528 ecmd->tx_pause = (jme->reg_txpfc & TXPFC_PF_EN) != 0;
2529 ecmd->rx_pause = (jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0;
2530
cd0ff491
GFT		 2531 spin_lock_bh(&jme->phy_lock);
2532 val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE);
2533 spin_unlock_bh(&jme->phy_lock);
b3821cc5
GFT		 2534
2535 ecmd->autoneg =
2536 (val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0;
8c198884
GFT		 2537}
2538
2539static int
2540jme_set_pauseparam(struct net_device *netdev,
2541 struct ethtool_pauseparam *ecmd)
2542{
2543 struct jme_adapter *jme = netdev_priv(netdev);
cd0ff491 2544 u32 val;
8c198884 2545
cd0ff491 2546 if (((jme->reg_txpfc & TXPFC_PF_EN) != 0) ^
8c198884
GFT		 2547 (ecmd->tx_pause != 0)) {
2548
cd0ff491 2549 if (ecmd->tx_pause)
8c198884
GFT		 2550 jme->reg_txpfc |= TXPFC_PF_EN;
2551 else
2552 jme->reg_txpfc &= ~TXPFC_PF_EN;
2553
2554 jwrite32(jme, JME_TXPFC, jme->reg_txpfc);
2555 }
2556
cd0ff491
GFT		 2557 spin_lock_bh(&jme->rxmcs_lock);
2558 if (((jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0) ^
8c198884
GFT		 2559 (ecmd->rx_pause != 0)) {
2560
cd0ff491 2561 if (ecmd->rx_pause)
8c198884
GFT		 2562 jme->reg_rxmcs |= RXMCS_FLOWCTRL;
2563 else
2564 jme->reg_rxmcs &= ~RXMCS_FLOWCTRL;
2565
2566 jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
2567 }
cd0ff491 2568 spin_unlock_bh(&jme->rxmcs_lock);
8c198884 2569
cd0ff491
GFT		 2570 spin_lock_bh(&jme->phy_lock);
2571 val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE);
2572 if (((val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0) ^
8c198884
GFT		 2573 (ecmd->autoneg != 0)) {
2574
cd0ff491 2575 if (ecmd->autoneg)
8c198884
GFT		 2576 val |= (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
2577 else
2578 val &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
2579
b3821cc5
GFT		 2580 jme_mdio_write(jme->dev, jme->mii_if.phy_id,
2581 MII_ADVERTISE, val);
8c198884 2582 }
cd0ff491 2583 spin_unlock_bh(&jme->phy_lock);
8c198884
GFT		 2584
2585 return 0;
2586}
2587
29bdd921
GFT		 2588static void
2589jme_get_wol(struct net_device *netdev,
2590 struct ethtool_wolinfo *wol)
2591{
2592 struct jme_adapter *jme = netdev_priv(netdev);
2593
2594 wol->supported = WAKE_MAGIC | WAKE_PHY;
2595
2596 wol->wolopts = 0;
2597
cd0ff491 2598 if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN))
29bdd921
GFT		 2599 wol->wolopts |= WAKE_PHY;
2600
cd0ff491 2601 if (jme->reg_pmcs & PMCS_MFEN)
29bdd921
GFT		 2602 wol->wolopts |= WAKE_MAGIC;
2603
2604}
2605
2606static int
2607jme_set_wol(struct net_device *netdev,
2608 struct ethtool_wolinfo *wol)
2609{
2610 struct jme_adapter *jme = netdev_priv(netdev);
2611
cd0ff491 2612 if (wol->wolopts & (WAKE_MAGICSECURE |
29bdd921
GFT		 2613 WAKE_UCAST |
2614 WAKE_MCAST |
2615 WAKE_BCAST |
2616 WAKE_ARP))
2617 return -EOPNOTSUPP;
2618
2619 jme->reg_pmcs = 0;
2620
cd0ff491 2621 if (wol->wolopts & WAKE_PHY)
29bdd921
GFT		 2622 jme->reg_pmcs |= PMCS_LFEN | PMCS_LREN;
2623
cd0ff491 2624 if (wol->wolopts & WAKE_MAGIC)
29bdd921
GFT		 2625 jme->reg_pmcs |= PMCS_MFEN;
2626
cd0ff491 2627 jwrite32(jme, JME_PMCS, jme->reg_pmcs);
18783c49 2628 device_set_wakeup_enable(&jme->pdev->dev, !!(jme->reg_pmcs));
8ad2ddac 2629
29bdd921
GFT		 2630 return 0;
2631}
b3821cc5 2632
3bf61c55
GFT		 2633static int
2634jme_get_settings(struct net_device *netdev,
2635 struct ethtool_cmd *ecmd)
d7699f87
GFT		 2636{
2637 struct jme_adapter *jme = netdev_priv(netdev);
2638 int rc;
8c198884 2639
cd0ff491 2640 spin_lock_bh(&jme->phy_lock);
d7699f87 2641 rc = mii_ethtool_gset(&(jme->mii_if), ecmd);
cd0ff491 2642 spin_unlock_bh(&jme->phy_lock);
d7699f87
GFT		 2643 return rc;
2644}
2645
3bf61c55
GFT		 2646static int
2647jme_set_settings(struct net_device *netdev,
2648 struct ethtool_cmd *ecmd)
d7699f87
GFT		 2649{
2650 struct jme_adapter *jme = netdev_priv(netdev);
cd0ff491 2651 int rc, fdc = 0;
fcf45b4c 2652
035550c9
DD		 2653 if (ethtool_cmd_speed(ecmd) == SPEED_1000
2654 && ecmd->autoneg != AUTONEG_ENABLE)
8c198884
GFT		 2655 return -EINVAL;
2656
f79361a6
GFT		 2657 /*
2658 * Check If user changed duplex only while force_media.
2659 * Hardware would not generate link change interrupt.
2660 */
cd0ff491 2661 if (jme->mii_if.force_media &&
79ce639c
GFT		 2662 ecmd->autoneg != AUTONEG_ENABLE &&
2663 (jme->mii_if.full_duplex != ecmd->duplex))
2664 fdc = 1;
2665
cd0ff491 2666 spin_lock_bh(&jme->phy_lock);
d7699f87 2667 rc = mii_ethtool_sset(&(jme->mii_if), ecmd);
cd0ff491 2668 spin_unlock_bh(&jme->phy_lock);
fcf45b4c 2669
cd0ff491 2670 if (!rc) {
f79361a6
GFT		 2671 if (fdc)
2672 jme_reset_link(jme);
29bdd921 2673 jme->old_ecmd = *ecmd;
43e4651b
GFT		 2674 set_bit(JME_FLAG_SSET, &jme->flags);
2675 }
2676
2677 return rc;
2678}
2679
2680static int
2681jme_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
2682{
2683 int rc;
2684 struct jme_adapter *jme = netdev_priv(netdev);
2685 struct mii_ioctl_data *mii_data = if_mii(rq);
2686 unsigned int duplex_chg;
2687
2688 if (cmd == SIOCSMIIREG) {
2689 u16 val = mii_data->val_in;
2690 if (!(val & (BMCR_RESET|BMCR_ANENABLE)) &&
2691 (val & BMCR_SPEED1000))
2692 return -EINVAL;
2693 }
2694
2695 spin_lock_bh(&jme->phy_lock);
2696 rc = generic_mii_ioctl(&jme->mii_if, mii_data, cmd, &duplex_chg);
2697 spin_unlock_bh(&jme->phy_lock);
2698
2699 if (!rc && (cmd == SIOCSMIIREG)) {
2700 if (duplex_chg)
2701 jme_reset_link(jme);
2702 jme_get_settings(netdev, &jme->old_ecmd);
2703 set_bit(JME_FLAG_SSET, &jme->flags);
29bdd921
GFT		 2704 }
2705
d7699f87
GFT		 2706 return rc;
2707}
2708
cd0ff491 2709static u32
3bf61c55
GFT		 2710jme_get_link(struct net_device *netdev)
2711{
d7699f87
GFT		 2712 struct jme_adapter *jme = netdev_priv(netdev);
2713 return jread32(jme, JME_PHY_LINK) & PHY_LINK_UP;
2714}
2715
8c198884 2716static u32
cd0ff491
GFT		 2717jme_get_msglevel(struct net_device *netdev)
2718{
2719 struct jme_adapter *jme = netdev_priv(netdev);
2720 return jme->msg_enable;
2721}
2722
2723static void
2724jme_set_msglevel(struct net_device *netdev, u32 value)
8c198884 2725{
cd0ff491
GFT		 2726 struct jme_adapter *jme = netdev_priv(netdev);
2727 jme->msg_enable = value;
2728}
8c198884 2729
ae968fb3
MM		 2730static netdev_features_t
2731jme_fix_features(struct net_device *netdev, netdev_features_t features)
cd0ff491 2732{
aa4d6a67
MM		 2733 if (netdev->mtu > 1900)
2734 features &= ~(NETIF_F_ALL_TSO | NETIF_F_ALL_CSUM);
2735 return features;
8c198884
GFT		 2736}
2737
2738static int
ae968fb3 2739jme_set_features(struct net_device *netdev, netdev_features_t features)
8c198884 2740{
cd0ff491 2741 struct jme_adapter *jme = netdev_priv(netdev);
b3821cc5 2742
cd0ff491 2743 spin_lock_bh(&jme->rxmcs_lock);
aa4d6a67 2744 if (features & NETIF_F_RXCSUM)
8c198884
GFT		 2745 jme->reg_rxmcs |= RXMCS_CHECKSUM;
2746 else
2747 jme->reg_rxmcs &= ~RXMCS_CHECKSUM;
2748 jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
cd0ff491 2749 spin_unlock_bh(&jme->rxmcs_lock);
8c198884
GFT		 2750
2751 return 0;
2752}
2753
8c198884
GFT		 2754static int
2755jme_nway_reset(struct net_device *netdev)
2756{
cd0ff491 2757 struct jme_adapter *jme = netdev_priv(netdev);
8c198884
GFT		 2758 jme_restart_an(jme);
2759 return 0;
2760}
2761
cd0ff491 2762static u8
186fc259
GFT		 2763jme_smb_read(struct jme_adapter *jme, unsigned int addr)
2764{
cd0ff491 2765 u32 val;
186fc259
GFT		 2766 int to;
2767
2768 val = jread32(jme, JME_SMBCSR);
2769 to = JME_SMB_BUSY_TIMEOUT;
cd0ff491 2770 while ((val & SMBCSR_BUSY) && --to) {
186fc259
GFT		 2771 msleep(1);
2772 val = jread32(jme, JME_SMBCSR);
2773 }
cd0ff491 2774 if (!to) {
52a46ba8 2775 netif_err(jme, hw, jme->dev, "SMB Bus Busy\n");
186fc259
GFT		 2776 return 0xFF;
2777 }
2778
2779 jwrite32(jme, JME_SMBINTF,
2780 ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) |
2781 SMBINTF_HWRWN_READ |
2782 SMBINTF_HWCMD);
2783
2784 val = jread32(jme, JME_SMBINTF);
2785 to = JME_SMB_BUSY_TIMEOUT;
cd0ff491 2786 while ((val & SMBINTF_HWCMD) && --to) {
186fc259
GFT		 2787 msleep(1);
2788 val = jread32(jme, JME_SMBINTF);
2789 }
cd0ff491 2790 if (!to) {
52a46ba8 2791 netif_err(jme, hw, jme->dev, "SMB Bus Busy\n");
186fc259
GFT		 2792 return 0xFF;
2793 }
2794
2795 return (val & SMBINTF_HWDATR) >> SMBINTF_HWDATR_SHIFT;
2796}
2797
2798static void
cd0ff491 2799jme_smb_write(struct jme_adapter *jme, unsigned int addr, u8 data)
186fc259 2800{
cd0ff491 2801 u32 val;
186fc259
GFT		 2802 int to;
2803
2804 val = jread32(jme, JME_SMBCSR);
2805 to = JME_SMB_BUSY_TIMEOUT;
cd0ff491 2806 while ((val & SMBCSR_BUSY) && --to) {
186fc259
GFT		 2807 msleep(1);
2808 val = jread32(jme, JME_SMBCSR);
2809 }
cd0ff491 2810 if (!to) {
52a46ba8 2811 netif_err(jme, hw, jme->dev, "SMB Bus Busy\n");
186fc259
GFT		 2812 return;
2813 }
2814
2815 jwrite32(jme, JME_SMBINTF,
2816 ((data << SMBINTF_HWDATW_SHIFT) & SMBINTF_HWDATW) |
2817 ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) |
2818 SMBINTF_HWRWN_WRITE |
2819 SMBINTF_HWCMD);
2820
2821 val = jread32(jme, JME_SMBINTF);
2822 to = JME_SMB_BUSY_TIMEOUT;
cd0ff491 2823 while ((val & SMBINTF_HWCMD) && --to) {
186fc259
GFT		 2824 msleep(1);
2825 val = jread32(jme, JME_SMBINTF);
2826 }
cd0ff491 2827 if (!to) {
52a46ba8 2828 netif_err(jme, hw, jme->dev, "SMB Bus Busy\n");
186fc259
GFT		 2829 return;
2830 }
2831
2832 mdelay(2);
2833}
2834
2835static int
2836jme_get_eeprom_len(struct net_device *netdev)
2837{
cd0ff491
GFT		 2838 struct jme_adapter *jme = netdev_priv(netdev);
2839 u32 val;
186fc259 2840 val = jread32(jme, JME_SMBCSR);
cd0ff491 2841 return (val & SMBCSR_EEPROMD) ? JME_SMB_LEN : 0;
186fc259
GFT		 2842}
2843
2844static int
2845jme_get_eeprom(struct net_device *netdev,
2846 struct ethtool_eeprom *eeprom, u8 *data)
2847{
cd0ff491 2848 struct jme_adapter *jme = netdev_priv(netdev);
186fc259
GFT		 2849 int i, offset = eeprom->offset, len = eeprom->len;
2850
2851 /*
8d27293f 2852 * ethtool will check the boundary for us
186fc259
GFT		 2853 */
2854 eeprom->magic = JME_EEPROM_MAGIC;
cd0ff491 2855 for (i = 0 ; i < len ; ++i)
186fc259
GFT		 2856 data[i] = jme_smb_read(jme, i + offset);
2857
2858 return 0;
2859}
2860
2861static int
2862jme_set_eeprom(struct net_device *netdev,
2863 struct ethtool_eeprom *eeprom, u8 *data)
2864{
cd0ff491 2865 struct jme_adapter *jme = netdev_priv(netdev);
186fc259
GFT		 2866 int i, offset = eeprom->offset, len = eeprom->len;
2867
2868 if (eeprom->magic != JME_EEPROM_MAGIC)
2869 return -EINVAL;
2870
2871 /*
8d27293f 2872 * ethtool will check the boundary for us
186fc259 2873 */
cd0ff491 2874 for (i = 0 ; i < len ; ++i)
186fc259
GFT		 2875 jme_smb_write(jme, i + offset, data[i]);
2876
2877 return 0;
2878}
2879
d7699f87 2880static const struct ethtool_ops jme_ethtool_ops = {
cd0ff491 2881 .get_drvinfo = jme_get_drvinfo,
8c198884
GFT		 2882 .get_regs_len = jme_get_regs_len,
2883 .get_regs = jme_get_regs,
2884 .get_coalesce = jme_get_coalesce,
192570e0 2885 .set_coalesce = jme_set_coalesce,
cd0ff491
GFT		 2886 .get_pauseparam = jme_get_pauseparam,
2887 .set_pauseparam = jme_set_pauseparam,
29bdd921
GFT		 2888 .get_wol = jme_get_wol,
2889 .set_wol = jme_set_wol,
d7699f87
GFT		 2890 .get_settings = jme_get_settings,
2891 .set_settings = jme_set_settings,
2892 .get_link = jme_get_link,
cd0ff491
GFT		 2893 .get_msglevel = jme_get_msglevel,
2894 .set_msglevel = jme_set_msglevel,
8c198884 2895 .nway_reset = jme_nway_reset,
186fc259
GFT		 2896 .get_eeprom_len = jme_get_eeprom_len,
2897 .get_eeprom = jme_get_eeprom,
2898 .set_eeprom = jme_set_eeprom,
d7699f87
GFT		 2899};
2900
3bf61c55
GFT		 2901static int
2902jme_pci_dma64(struct pci_dev *pdev)
d7699f87 2903{
94c5ea02 2904 if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 &&
fa97b924
GFT		 2905 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
2906 if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
3bf61c55
GFT		 2907 return 1;
2908
94c5ea02 2909 if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 &&
fa97b924
GFT		 2910 !pci_set_dma_mask(pdev, DMA_BIT_MASK(40)))
2911 if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40)))
8c198884
GFT		 2912 return 1;
2913
fa97b924
GFT		 2914 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
2915 if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
3bf61c55
GFT		 2916 return 0;
2917
2918 return -1;
2919}
2920
cd0ff491 2921static inline void
cdcdc9eb
GFT		 2922jme_phy_init(struct jme_adapter *jme)
2923{
cd0ff491 2924 u16 reg26;
cdcdc9eb
GFT		 2925
2926 reg26 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 26);
2927 jme_mdio_write(jme->dev, jme->mii_if.phy_id, 26, reg26 | 0x1000);
2928}
2929
cd0ff491 2930static inline void
cdcdc9eb 2931jme_check_hw_ver(struct jme_adapter *jme)
42b1055e 2932{
cd0ff491 2933 u32 chipmode;
cdcdc9eb
GFT		 2934
2935 chipmode = jread32(jme, JME_CHIPMODE);
2936
2937 jme->fpgaver = (chipmode & CM_FPGAVER_MASK) >> CM_FPGAVER_SHIFT;
e882564f 2938 jme->chiprev = (chipmode & CM_CHIPREV_MASK) >> CM_CHIPREV_SHIFT;
4400ae98
GFT		 2939 jme->chip_main_rev = jme->chiprev & 0xF;
2940 jme->chip_sub_rev = (jme->chiprev >> 4) & 0xF;
42b1055e
GFT		 2941}
2942
94c5ea02
GFT		 2943static const struct net_device_ops jme_netdev_ops = {
2944 .ndo_open = jme_open,
2945 .ndo_stop = jme_close,
2946 .ndo_validate_addr = eth_validate_addr,
43e4651b 2947 .ndo_do_ioctl = jme_ioctl,
94c5ea02
GFT		 2948 .ndo_start_xmit = jme_start_xmit,
2949 .ndo_set_mac_address = jme_set_macaddr,
43df9b78 2950 .ndo_set_rx_mode = jme_set_multi,
94c5ea02
GFT		 2951 .ndo_change_mtu = jme_change_mtu,
2952 .ndo_tx_timeout = jme_tx_timeout,
aa4d6a67
MM		 2953 .ndo_fix_features = jme_fix_features,
2954 .ndo_set_features = jme_set_features,
94c5ea02
GFT		 2955};
2956
3bf61c55
GFT		 2957static int __devinit
2958jme_init_one(struct pci_dev *pdev,
2959 const struct pci_device_id *ent)
2960{
cdcdc9eb 2961 int rc = 0, using_dac, i;
d7699f87
GFT		 2962 struct net_device *netdev;
2963 struct jme_adapter *jme;
cd0ff491
GFT		 2964 u16 bmcr, bmsr;
2965 u32 apmc;
d7699f87
GFT		 2966
2967 /*
2968 * set up PCI device basics
2969 */
4330c2f2 2970 rc = pci_enable_device(pdev);
cd0ff491 2971 if (rc) {
52a46ba8 2972 pr_err("Cannot enable PCI device\n");
4330c2f2
GFT		 2973 goto err_out;
2974 }
d7699f87 2975
3bf61c55 2976 using_dac = jme_pci_dma64(pdev);
cd0ff491 2977 if (using_dac < 0) {
52a46ba8 2978 pr_err("Cannot set PCI DMA Mask\n");
3bf61c55
GFT		 2979 rc = -EIO;
2980 goto err_out_disable_pdev;
2981 }
2982
cd0ff491 2983 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
52a46ba8 2984 pr_err("No PCI resource region found\n");
4330c2f2
GFT		 2985 rc = -ENOMEM;
2986 goto err_out_disable_pdev;
2987 }
d7699f87 2988
4330c2f2 2989 rc = pci_request_regions(pdev, DRV_NAME);
cd0ff491 2990 if (rc) {
52a46ba8 2991 pr_err("Cannot obtain PCI resource region\n");
4330c2f2
GFT		 2992 goto err_out_disable_pdev;
2993 }
d7699f87
GFT		 2994
2995 pci_set_master(pdev);
2996
2997 /*
2998 * alloc and init net device
2999 */
3bf61c55 3000 netdev = alloc_etherdev(sizeof(*jme));
cd0ff491 3001 if (!netdev) {
4330c2f2
GFT		 3002 rc = -ENOMEM;
3003 goto err_out_release_regions;
d7699f87 3004 }
94c5ea02 3005 netdev->netdev_ops = &jme_netdev_ops;
d7699f87 3006 netdev->ethtool_ops = &jme_ethtool_ops;
8c198884 3007 netdev->watchdog_timeo = TX_TIMEOUT;
aa4d6a67
MM		 3008 netdev->hw_features = NETIF_F_IP_CSUM |
3009 NETIF_F_IPV6_CSUM |
3010 NETIF_F_SG |
3011 NETIF_F_TSO |
3012 NETIF_F_TSO6 |
3013 NETIF_F_RXCSUM;
9a08cd10
MM		 3014 netdev->features = NETIF_F_IP_CSUM |
3015 NETIF_F_IPV6_CSUM |
b3821cc5
GFT		 3016 NETIF_F_SG |
3017 NETIF_F_TSO |
3018 NETIF_F_TSO6 |
42b1055e
GFT		 3019 NETIF_F_HW_VLAN_TX |
3020 NETIF_F_HW_VLAN_RX;
cd0ff491 3021 if (using_dac)
8c198884 3022 netdev->features |= NETIF_F_HIGHDMA;
d7699f87
GFT		 3023
3024 SET_NETDEV_DEV(netdev, &pdev->dev);
3025 pci_set_drvdata(pdev, netdev);
3026
3027 /*
3028 * init adapter info
3029 */
3030 jme = netdev_priv(netdev);
3031 jme->pdev = pdev;
3032 jme->dev = netdev;
cdcdc9eb 3033 jme->jme_rx = netif_rx;
29bdd921 3034 jme->old_mtu = netdev->mtu = 1500;
fcf45b4c 3035 jme->phylink = 0;
b3821cc5
GFT		 3036 jme->tx_ring_size = 1 << 10;
3037 jme->tx_ring_mask = jme->tx_ring_size - 1;
3038 jme->tx_wake_threshold = 1 << 9;
3039 jme->rx_ring_size = 1 << 9;
3040 jme->rx_ring_mask = jme->rx_ring_size - 1;
cd0ff491 3041 jme->msg_enable = JME_DEF_MSG_ENABLE;
d7699f87
GFT		 3042 jme->regs = ioremap(pci_resource_start(pdev, 0),
3043 pci_resource_len(pdev, 0));
4330c2f2 3044 if (!(jme->regs)) {
52a46ba8 3045 pr_err("Mapping PCI resource region error\n");
d7699f87
GFT		 3046 rc = -ENOMEM;
3047 goto err_out_free_netdev;
3048 }
4330c2f2 3049
cd0ff491
GFT		 3050 if (no_pseudohp) {
3051 apmc = jread32(jme, JME_APMC) & ~JME_APMC_PSEUDO_HP_EN;
3052 jwrite32(jme, JME_APMC, apmc);
3053 } else if (force_pseudohp) {
3054 apmc = jread32(jme, JME_APMC) | JME_APMC_PSEUDO_HP_EN;
3055 jwrite32(jme, JME_APMC, apmc);
3056 }
3057
cdcdc9eb 3058 NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, jme->rx_ring_size >> 2)
192570e0 3059
d7699f87 3060 spin_lock_init(&jme->phy_lock);
fcf45b4c 3061 spin_lock_init(&jme->macaddr_lock);
8c198884 3062 spin_lock_init(&jme->rxmcs_lock);
fcf45b4c 3063
fcf45b4c
GFT		 3064 atomic_set(&jme->link_changing, 1);
3065 atomic_set(&jme->rx_cleaning, 1);
3066 atomic_set(&jme->tx_cleaning, 1);
192570e0 3067 atomic_set(&jme->rx_empty, 1);
fcf45b4c 3068
79ce639c 3069 tasklet_init(&jme->pcc_task,
c97b5740 3070 jme_pcc_tasklet,
79ce639c 3071 (unsigned long) jme);
4330c2f2 3072 tasklet_init(&jme->linkch_task,
c97b5740 3073 jme_link_change_tasklet,
4330c2f2
GFT		 3074 (unsigned long) jme);
3075 tasklet_init(&jme->txclean_task,
c97b5740 3076 jme_tx_clean_tasklet,
4330c2f2
GFT		 3077 (unsigned long) jme);
3078 tasklet_init(&jme->rxclean_task,
c97b5740 3079 jme_rx_clean_tasklet,
4330c2f2 3080 (unsigned long) jme);
fcf45b4c 3081 tasklet_init(&jme->rxempty_task,
c97b5740 3082 jme_rx_empty_tasklet,
fcf45b4c 3083 (unsigned long) jme);
fa97b924 3084 tasklet_disable_nosync(&jme->linkch_task);
cd0ff491
GFT		 3085 tasklet_disable_nosync(&jme->txclean_task);
3086 tasklet_disable_nosync(&jme->rxclean_task);
3087 tasklet_disable_nosync(&jme->rxempty_task);
8c198884
GFT		 3088 jme->dpi.cur = PCC_P1;
3089
cd0ff491 3090 jme->reg_ghc = 0;
79ce639c 3091 jme->reg_rxcs = RXCS_DEFAULT;
8c198884
GFT		 3092 jme->reg_rxmcs = RXMCS_DEFAULT;
3093 jme->reg_txpfc = 0;
47220951 3094 jme->reg_pmcs = PMCS_MFEN;
ed830419 3095 jme->reg_gpreg1 = GPREG1_DEFAULT;
aa4d6a67
MM		 3096
3097 if (jme->reg_rxmcs & RXMCS_CHECKSUM)
3098 netdev->features |= NETIF_F_RXCSUM;
192570e0 3099
fcf45b4c
GFT		 3100 /*
3101 * Get Max Read Req Size from PCI Config Space
3102 */
cd0ff491
GFT		 3103 pci_read_config_byte(pdev, PCI_DCSR_MRRS, &jme->mrrs);
3104 jme->mrrs &= PCI_DCSR_MRRS_MASK;
3105 switch (jme->mrrs) {
3106 case MRRS_128B:
3107 jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_128B;
3108 break;
3109 case MRRS_256B:
3110 jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_256B;
3111 break;
3112 default:
3113 jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_512B;
3114 break;
06527f9b 3115 }
fcf45b4c 3116
d7699f87 3117 /*
cdcdc9eb 3118 * Must check before reset_mac_processor
d7699f87 3119 */
cdcdc9eb
GFT		 3120 jme_check_hw_ver(jme);
3121 jme->mii_if.dev = netdev;
cd0ff491 3122 if (jme->fpgaver) {
cdcdc9eb 3123 jme->mii_if.phy_id = 0;
cd0ff491 3124 for (i = 1 ; i < 32 ; ++i) {
cdcdc9eb
GFT		 3125 bmcr = jme_mdio_read(netdev, i, MII_BMCR);
3126 bmsr = jme_mdio_read(netdev, i, MII_BMSR);
cd0ff491 3127 if (bmcr != 0xFFFFU && (bmcr != 0 || bmsr != 0)) {
cdcdc9eb
GFT		 3128 jme->mii_if.phy_id = i;
3129 break;
3130 }
3131 }
3132
cd0ff491 3133 if (!jme->mii_if.phy_id) {
cdcdc9eb 3134 rc = -EIO;
52a46ba8
JP		 3135 pr_err("Can not find phy_id\n");
3136 goto err_out_unmap;
cdcdc9eb
GFT		 3137 }
3138
3139 jme->reg_ghc |= GHC_LINK_POLL;
cd0ff491 3140 } else {
cdcdc9eb
GFT		 3141 jme->mii_if.phy_id = 1;
3142 }
cd0ff491 3143 if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250)
8d27293f
GFT		 3144 jme->mii_if.supports_gmii = true;
3145 else
3146 jme->mii_if.supports_gmii = false;
43e4651b
GFT		 3147 jme->mii_if.phy_id_mask = 0x1F;
3148 jme->mii_if.reg_num_mask = 0x1F;
cdcdc9eb
GFT		 3149 jme->mii_if.mdio_read = jme_mdio_read;
3150 jme->mii_if.mdio_write = jme_mdio_write;
3151
d7699f87 3152 jme_clear_pm(jme);
18783c49
GFT		 3153 pci_set_power_state(jme->pdev, PCI_D0);
3154 device_set_wakeup_enable(&pdev->dev, true);
3155
06168a20 3156 jme_set_phyfifo_5level(jme);
6db67aa5 3157 jme->pcirev = pdev->revision;
cd0ff491 3158 if (!jme->fpgaver)
cdcdc9eb 3159 jme_phy_init(jme);
42b1055e 3160 jme_phy_off(jme);
cdcdc9eb
GFT		 3161
3162 /*
3163 * Reset MAC processor and reload EEPROM for MAC Address
3164 */
d7699f87 3165 jme_reset_mac_processor(jme);
4330c2f2 3166 rc = jme_reload_eeprom(jme);
cd0ff491 3167 if (rc) {
52a46ba8 3168 pr_err("Reload eeprom for reading MAC Address error\n");
fa97b924 3169 goto err_out_unmap;
4330c2f2 3170 }
d7699f87
GFT		 3171 jme_load_macaddr(netdev);
3172
d7699f87
GFT		 3173 /*
3174 * Tell stack that we are not ready to work until open()
3175 */
3176 netif_carrier_off(netdev);
d7699f87 3177
4330c2f2 3178 rc = register_netdev(netdev);
cd0ff491 3179 if (rc) {
52a46ba8 3180 pr_err("Cannot register net device\n");
fa97b924 3181 goto err_out_unmap;
4330c2f2 3182 }
d7699f87 3183
4400ae98 3184 netif_info(jme, probe, jme->dev, "%s%s chiprev:%x pcirev:%x macaddr:%pM\n",
c97b5740
GFT		 3185 (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) ?
3186 "JMC250 Gigabit Ethernet" :
3187 (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC260) ?
3188 "JMC260 Fast Ethernet" : "Unknown",
3189 (jme->fpgaver != 0) ? " (FPGA)" : "",
3190 (jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev,
4400ae98 3191 jme->pcirev, netdev->dev_addr);
d7699f87
GFT		 3192
3193 return 0;
3194
3195err_out_unmap:
3196 iounmap(jme->regs);
3197err_out_free_netdev:
3198 pci_set_drvdata(pdev, NULL);
3199 free_netdev(netdev);
4330c2f2
GFT		 3200err_out_release_regions:
3201 pci_release_regions(pdev);
d7699f87 3202err_out_disable_pdev:
cd0ff491 3203 pci_disable_device(pdev);
d7699f87 3204err_out:
4330c2f2 3205 return rc;
d7699f87
GFT		 3206}
3207
3bf61c55
GFT		 3208static void __devexit
3209jme_remove_one(struct pci_dev *pdev)
3210{
d7699f87
GFT		 3211 struct net_device *netdev = pci_get_drvdata(pdev);
3212 struct jme_adapter *jme = netdev_priv(netdev);
3213
3214 unregister_netdev(netdev);
3215 iounmap(jme->regs);
3216 pci_set_drvdata(pdev, NULL);
3217 free_netdev(netdev);
3218 pci_release_regions(pdev);
3219 pci_disable_device(pdev);
3220
3221}
3222
fba4bc0c
GFT		 3223static void
3224jme_shutdown(struct pci_dev *pdev)
3225{
3226 struct net_device *netdev = pci_get_drvdata(pdev);
3227 struct jme_adapter *jme = netdev_priv(netdev);
3228
3229 jme_powersave_phy(jme);
3230 pci_pme_active(pdev, true);
3231}
3232
e10cd037 3233#ifdef CONFIG_PM_SLEEP
18783c49
GFT		 3234static int
3235jme_suspend(struct device *dev)
29bdd921 3236{
8ad2ddac 3237 struct pci_dev *pdev = to_pci_dev(dev);
29bdd921
GFT		 3238 struct net_device *netdev = pci_get_drvdata(pdev);
3239 struct jme_adapter *jme = netdev_priv(netdev);
29bdd921
GFT		 3240
3241 atomic_dec(&jme->link_changing);
3242
3243 netif_device_detach(netdev);
3244 netif_stop_queue(netdev);
3245 jme_stop_irq(jme);
29bdd921 3246
cd0ff491
GFT		 3247 tasklet_disable(&jme->txclean_task);
3248 tasklet_disable(&jme->rxclean_task);
3249 tasklet_disable(&jme->rxempty_task);
3250
cd0ff491
GFT		 3251 if (netif_carrier_ok(netdev)) {
3252 if (test_bit(JME_FLAG_POLL, &jme->flags))
47220951
GFT		 3253 jme_polling_mode(jme);
3254
29bdd921 3255 jme_stop_pcc_timer(jme);
cd0ff491
GFT		 3256 jme_disable_rx_engine(jme);
3257 jme_disable_tx_engine(jme);
29bdd921
GFT		 3258 jme_reset_mac_processor(jme);
3259 jme_free_rx_resources(jme);
3260 jme_free_tx_resources(jme);
3261 netif_carrier_off(netdev);
3262 jme->phylink = 0;
3263 }
3264
cd0ff491
GFT		 3265 tasklet_enable(&jme->txclean_task);
3266 tasklet_hi_enable(&jme->rxclean_task);
3267 tasklet_hi_enable(&jme->rxempty_task);
29bdd921 3268
fba4bc0c 3269 jme_powersave_phy(jme);
29bdd921
GFT		 3270
3271 return 0;
3272}
3273
18783c49
GFT		 3274static int
3275jme_resume(struct device *dev)
29bdd921 3276{
8ad2ddac 3277 struct pci_dev *pdev = to_pci_dev(dev);
29bdd921
GFT		 3278 struct net_device *netdev = pci_get_drvdata(pdev);
3279 struct jme_adapter *jme = netdev_priv(netdev);
3280
18783c49 3281 jme_clear_pm(jme);
e4610a83
GFT		 3282 jme_phy_on(jme);
3283 if (test_bit(JME_FLAG_SSET, &jme->flags))
29bdd921 3284 jme_set_settings(netdev, &jme->old_ecmd);
e4610a83 3285 else
29bdd921 3286 jme_reset_phy_processor(jme);
314d65d8
AL		 3287 jme_phy_calibration(jme);
3288 jme_phy_setEA(jme);
29bdd921
GFT		 3289 jme_start_irq(jme);
3290 netif_device_attach(netdev);
3291
3292 atomic_inc(&jme->link_changing);
3293
3294 jme_reset_link(jme);
3295
3296 return 0;
3297}
8ad2ddac
RW		 3298
3299static SIMPLE_DEV_PM_OPS(jme_pm_ops, jme_suspend, jme_resume);
3300#define JME_PM_OPS (&jme_pm_ops)
3301
3302#else
3303
3304#define JME_PM_OPS NULL
9b9d55de 3305#endif
29bdd921 3306
c97b5740 3307static DEFINE_PCI_DEVICE_TABLE(jme_pci_tbl) = {
cd0ff491
GFT		 3308 { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC250) },
3309 { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC260) },
d7699f87
GFT		 3310 { }
3311};
3312
3313static struct pci_driver jme_driver = {
cd0ff491
GFT		 3314 .name = DRV_NAME,
3315 .id_table = jme_pci_tbl,
3316 .probe = jme_init_one,
3317 .remove = __devexit_p(jme_remove_one),
fba4bc0c 3318 .shutdown = jme_shutdown,
8ad2ddac 3319 .driver.pm = JME_PM_OPS,
d7699f87
GFT		 3320};
3321
3bf61c55
GFT		 3322static int __init
3323jme_init_module(void)
d7699f87 3324{
52a46ba8 3325 pr_info("JMicron JMC2XX ethernet driver version %s\n", DRV_VERSION);
d7699f87
GFT		 3326 return pci_register_driver(&jme_driver);
3327}
3328
3bf61c55
GFT		 3329static void __exit
3330jme_cleanup_module(void)
d7699f87
GFT		 3331{
3332 pci_unregister_driver(&jme_driver);
3333}
3334
3335module_init(jme_init_module);
3336module_exit(jme_cleanup_module);
3337
3bf61c55 3338MODULE_AUTHOR("Guo-Fu Tseng <cooldavid@cooldavid.org>");
d7699f87
GFT		 3339MODULE_DESCRIPTION("JMicron JMC2x0 PCI Express Ethernet driver");
3340MODULE_LICENSE("GPL");
3341MODULE_VERSION(DRV_VERSION);
3342MODULE_DEVICE_TABLE(pci, jme_pci_tbl);
JMicron Ethernet Linux driver