2 * New driver for Marvell Yukon 2 chipset.
3 * Based on earlier sk98lin, and skge driver.
5 * This driver intentionally does not support all the features
6 * of the original driver such as link fail-over and link management because
7 * those should be done at higher levels.
9 * Copyright (C) 2005 Stephen Hemminger <shemminger@osdl.org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 * - coalescing setting?
35 #include <linux/config.h>
36 #include <linux/crc32.h>
37 #include <linux/kernel.h>
38 #include <linux/version.h>
39 #include <linux/module.h>
40 #include <linux/netdevice.h>
41 #include <linux/etherdevice.h>
42 #include <linux/ethtool.h>
43 #include <linux/pci.h>
45 #include <linux/tcp.h>
47 #include <linux/delay.h>
48 #include <linux/if_vlan.h>
52 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
53 #define SKY2_VLAN_TAG_USED 1
58 #define DRV_NAME "sky2"
59 #define DRV_VERSION "0.7"
60 #define PFX DRV_NAME " "
63 * The Yukon II chipset takes 64 bit command blocks (called list elements)
64 * that are organized into three (receive, transmit, status) different rings
65 * similar to Tigon3. A transmit can require several elements;
66 * a receive requires one (or two if using 64 bit dma).
69 #ifdef CONFIG_SKY2_EC_A1
70 #define is_ec_a1(hw) \
71 ((hw)->chip_id == CHIP_ID_YUKON_EC && \
72 (hw)->chip_rev == CHIP_REV_YU_EC_A1)
74 #define is_ec_a1(hw) 0
77 #define RX_LE_SIZE 256
78 #define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le))
79 #define RX_MAX_PENDING (RX_LE_SIZE/2 - 2)
80 #define RX_DEF_PENDING 128
81 #define RX_COPY_THRESHOLD 256
83 #define TX_RING_SIZE 512
84 #define TX_DEF_PENDING (TX_RING_SIZE - 1)
85 #define TX_MIN_PENDING 64
86 #define MAX_SKB_TX_LE (4 + 2*MAX_SKB_FRAGS)
88 #define STATUS_RING_SIZE 2048 /* 2 ports * (TX + 2*RX) */
89 #define STATUS_LE_BYTES (STATUS_RING_SIZE*sizeof(struct sky2_status_le))
90 #define ETH_JUMBO_MTU 9000
91 #define TX_WATCHDOG (5 * HZ)
92 #define NAPI_WEIGHT 64
93 #define PHY_RETRIES 1000
95 static const u32 default_msg =
96 NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
97 | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
98 | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN | NETIF_MSG_INTR;
100 static int debug = -1; /* defaults above */
101 module_param(debug, int, 0);
102 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
104 static const struct pci_device_id sky2_id_table[] = {
105 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) },
106 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) },
107 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) },
108 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b01) },
109 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4340) },
110 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4341) },
111 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4342) },
112 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4343) },
113 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4344) },
114 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4345) },
115 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4346) },
116 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4347) },
117 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4350) },
118 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) },
119 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) },
120 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) },
121 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) },
125 MODULE_DEVICE_TABLE(pci, sky2_id_table);
127 /* Avoid conditionals by using array */
128 static const unsigned txqaddr[] = { Q_XA1, Q_XA2 };
129 static const unsigned rxqaddr[] = { Q_R1, Q_R2 };
131 static const char *yukon_name[] = {
132 [CHIP_ID_YUKON_LITE - CHIP_ID_YUKON] = "Lite", /* 0xb0 */
133 [CHIP_ID_YUKON_LP - CHIP_ID_YUKON] = "LP", /* 0xb2 */
134 [CHIP_ID_YUKON_XL - CHIP_ID_YUKON] = "XL", /* 0xb3 */
136 [CHIP_ID_YUKON_EC - CHIP_ID_YUKON] = "EC", /* 0xb6 */
137 [CHIP_ID_YUKON_FE - CHIP_ID_YUKON] = "FE", /* 0xb7 */
141 /* Access to external PHY */
142 static void gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val)
146 gma_write16(hw, port, GM_SMI_DATA, val);
147 gma_write16(hw, port, GM_SMI_CTRL,
148 GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) | GM_SMI_CT_REG_AD(reg));
150 for (i = 0; i < PHY_RETRIES; i++) {
151 if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
155 printk(KERN_WARNING PFX "%s: phy write timeout\n", hw->dev[port]->name);
158 static u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg)
162 gma_write16(hw, port, GM_SMI_CTRL, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV)
163 | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
165 for (i = 0; i < PHY_RETRIES; i++) {
166 if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL)
171 printk(KERN_WARNING PFX "%s: phy read timeout\n", hw->dev[port]->name);
173 return gma_read16(hw, port, GM_SMI_DATA);
176 static int sky2_set_power_state(struct sky2_hw *hw, pci_power_t state)
183 pr_debug("sky2_set_power_state %d\n", state);
184 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
186 pci_read_config_word(hw->pdev, hw->pm_cap + PCI_PM_PMC, &power_control);
187 vaux = (sky2_read8(hw, B0_CTST) & Y2_VAUX_AVAIL) &&
188 (power_control & PCI_PM_CAP_PME_D3cold);
190 pci_read_config_word(hw->pdev, hw->pm_cap + PCI_PM_CTRL, &power_control);
192 power_control |= PCI_PM_CTRL_PME_STATUS;
193 power_control &= ~(PCI_PM_CTRL_STATE_MASK);
197 /* switch power to VCC (WA for VAUX problem) */
198 sky2_write8(hw, B0_POWER_CTRL,
199 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
201 /* disable Core Clock Division, */
202 sky2_write32(hw, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS);
204 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
205 /* enable bits are inverted */
206 sky2_write8(hw, B2_Y2_CLK_GATE,
207 Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
208 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
209 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
211 sky2_write8(hw, B2_Y2_CLK_GATE, 0);
213 /* Turn off phy power saving */
214 pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®1);
215 reg1 &= ~(PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD);
217 /* looks like this XL is back asswards .. */
218 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) {
219 reg1 |= PCI_Y2_PHY1_COMA;
221 reg1 |= PCI_Y2_PHY2_COMA;
223 pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg1);
228 /* Turn on phy power saving */
229 pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®1);
230 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
231 reg1 &= ~(PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD);
233 reg1 |= (PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD);
234 pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg1);
236 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
237 sky2_write8(hw, B2_Y2_CLK_GATE, 0);
239 /* enable bits are inverted */
240 sky2_write8(hw, B2_Y2_CLK_GATE,
241 Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
242 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
243 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
245 /* switch power to VAUX */
246 if (vaux && state != PCI_D3cold)
247 sky2_write8(hw, B0_POWER_CTRL,
248 (PC_VAUX_ENA | PC_VCC_ENA |
249 PC_VAUX_ON | PC_VCC_OFF));
252 printk(KERN_ERR PFX "Unknown power state %d\n", state);
256 pci_write_config_byte(hw->pdev, hw->pm_cap + PCI_PM_CTRL, power_control);
257 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
261 static void sky2_phy_reset(struct sky2_hw *hw, unsigned port)
265 /* disable all GMAC IRQ's */
266 sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
267 /* disable PHY IRQs */
268 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
270 gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
271 gma_write16(hw, port, GM_MC_ADDR_H2, 0);
272 gma_write16(hw, port, GM_MC_ADDR_H3, 0);
273 gma_write16(hw, port, GM_MC_ADDR_H4, 0);
275 reg = gma_read16(hw, port, GM_RX_CTRL);
276 reg |= GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA;
277 gma_write16(hw, port, GM_RX_CTRL, reg);
280 static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
282 struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
283 u16 ctrl, ct1000, adv, pg, ledctrl, ledover;
285 if (sky2->autoneg == AUTONEG_ENABLE && hw->chip_id != CHIP_ID_YUKON_XL) {
286 u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
288 ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
290 ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
292 if (hw->chip_id == CHIP_ID_YUKON_EC)
293 ectrl |= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA;
295 ectrl |= PHY_M_EC_M_DSC(2) | PHY_M_EC_S_DSC(3);
297 gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
300 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
302 if (hw->chip_id == CHIP_ID_YUKON_FE) {
303 /* enable automatic crossover */
304 ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1;
306 /* disable energy detect */
307 ctrl &= ~PHY_M_PC_EN_DET_MSK;
309 /* enable automatic crossover */
310 ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO);
312 if (sky2->autoneg == AUTONEG_ENABLE &&
313 hw->chip_id == CHIP_ID_YUKON_XL) {
314 ctrl &= ~PHY_M_PC_DSC_MSK;
315 ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA;
318 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
320 /* workaround for deviation #4.88 (CRC errors) */
321 /* disable Automatic Crossover */
323 ctrl &= ~PHY_M_PC_MDIX_MSK;
324 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
326 if (hw->chip_id == CHIP_ID_YUKON_XL) {
327 /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */
328 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
329 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
330 ctrl &= ~PHY_M_MAC_MD_MSK;
331 ctrl |= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX);
332 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
334 /* select page 1 to access Fiber registers */
335 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 1);
339 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
340 if (sky2->autoneg == AUTONEG_DISABLE)
345 ctrl |= PHY_CT_RESET;
346 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
352 if (sky2->autoneg == AUTONEG_ENABLE) {
354 if (sky2->advertising & ADVERTISED_1000baseT_Full)
355 ct1000 |= PHY_M_1000C_AFD;
356 if (sky2->advertising & ADVERTISED_1000baseT_Half)
357 ct1000 |= PHY_M_1000C_AHD;
358 if (sky2->advertising & ADVERTISED_100baseT_Full)
359 adv |= PHY_M_AN_100_FD;
360 if (sky2->advertising & ADVERTISED_100baseT_Half)
361 adv |= PHY_M_AN_100_HD;
362 if (sky2->advertising & ADVERTISED_10baseT_Full)
363 adv |= PHY_M_AN_10_FD;
364 if (sky2->advertising & ADVERTISED_10baseT_Half)
365 adv |= PHY_M_AN_10_HD;
366 } else /* special defines for FIBER (88E1011S only) */
367 adv |= PHY_M_AN_1000X_AHD | PHY_M_AN_1000X_AFD;
369 /* Set Flow-control capabilities */
370 if (sky2->tx_pause && sky2->rx_pause)
371 adv |= PHY_AN_PAUSE_CAP; /* symmetric */
372 else if (sky2->rx_pause && !sky2->tx_pause)
373 adv |= PHY_AN_PAUSE_ASYM | PHY_AN_PAUSE_CAP;
374 else if (!sky2->rx_pause && sky2->tx_pause)
375 adv |= PHY_AN_PAUSE_ASYM; /* local */
377 /* Restart Auto-negotiation */
378 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
380 /* forced speed/duplex settings */
381 ct1000 = PHY_M_1000C_MSE;
383 if (sky2->duplex == DUPLEX_FULL)
384 ctrl |= PHY_CT_DUP_MD;
386 switch (sky2->speed) {
388 ctrl |= PHY_CT_SP1000;
391 ctrl |= PHY_CT_SP100;
395 ctrl |= PHY_CT_RESET;
398 if (hw->chip_id != CHIP_ID_YUKON_FE)
399 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
401 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
402 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
404 /* Setup Phy LED's */
405 ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS);
408 switch (hw->chip_id) {
409 case CHIP_ID_YUKON_FE:
410 /* on 88E3082 these bits are at 11..9 (shifted left) */
411 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1;
413 ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR);
415 /* delete ACT LED control bits */
416 ctrl &= ~PHY_M_FELP_LED1_MSK;
417 /* change ACT LED control to blink mode */
418 ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL);
419 gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
422 case CHIP_ID_YUKON_XL:
423 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
425 /* select page 3 to access LED control register */
426 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
428 /* set LED Function Control register */
429 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
430 PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */
431 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
432 PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */
434 /* set Polarity Control register */
435 gm_phy_write(hw, port, PHY_MARV_PHY_STAT,
436 (PHY_M_POLC_LS1_P_MIX(4) |
437 PHY_M_POLC_IS0_P_MIX(4) |
438 PHY_M_POLC_LOS_CTRL(2) |
439 PHY_M_POLC_INIT_CTRL(2) |
440 PHY_M_POLC_STA1_CTRL(2) |
441 PHY_M_POLC_STA0_CTRL(2)));
443 /* restore page register */
444 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
448 /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
449 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
450 /* turn off the Rx LED (LED_RX) */
451 ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
454 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
456 if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) {
457 /* turn on 100 Mbps LED (LED_LINK100) */
458 ledover |= PHY_M_LED_MO_100(MO_LED_ON);
462 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
464 /* Enable phy interrupt on auto-negotiation complete (or link up) */
465 if (sky2->autoneg == AUTONEG_ENABLE)
466 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL);
468 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
471 static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
473 struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
476 const u8 *addr = hw->dev[port]->dev_addr;
478 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
479 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
481 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
483 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 && port == 1) {
484 /* WA DEV_472 -- looks like crossed wires on port 2 */
485 /* clear GMAC 1 Control reset */
486 sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR);
488 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET);
489 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR);
490 } while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL ||
491 gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 ||
492 gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0);
495 if (sky2->autoneg == AUTONEG_DISABLE) {
496 reg = gma_read16(hw, port, GM_GP_CTRL);
497 reg |= GM_GPCR_AU_ALL_DIS;
498 gma_write16(hw, port, GM_GP_CTRL, reg);
499 gma_read16(hw, port, GM_GP_CTRL);
501 switch (sky2->speed) {
503 reg |= GM_GPCR_SPEED_1000;
506 reg |= GM_GPCR_SPEED_100;
509 if (sky2->duplex == DUPLEX_FULL)
510 reg |= GM_GPCR_DUP_FULL;
512 reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
514 if (!sky2->tx_pause && !sky2->rx_pause) {
515 sky2_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
517 GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
518 } else if (sky2->tx_pause && !sky2->rx_pause) {
519 /* disable Rx flow-control */
520 reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
523 gma_write16(hw, port, GM_GP_CTRL, reg);
525 sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
527 spin_lock_bh(&hw->phy_lock);
528 sky2_phy_init(hw, port);
529 spin_unlock_bh(&hw->phy_lock);
532 reg = gma_read16(hw, port, GM_PHY_ADDR);
533 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
535 for (i = 0; i < GM_MIB_CNT_SIZE; i++)
536 gma_read16(hw, port, GM_MIB_CNT_BASE + 8 * i);
537 gma_write16(hw, port, GM_PHY_ADDR, reg);
539 /* transmit control */
540 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
542 /* receive control reg: unicast + multicast + no FCS */
543 gma_write16(hw, port, GM_RX_CTRL,
544 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
546 /* transmit flow control */
547 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
549 /* transmit parameter */
550 gma_write16(hw, port, GM_TX_PARAM,
551 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
552 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
553 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) |
554 TX_BACK_OFF_LIM(TX_BOF_LIM_DEF));
556 /* serial mode register */
557 reg = DATA_BLIND_VAL(DATA_BLIND_DEF) |
558 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
560 if (hw->dev[port]->mtu > ETH_DATA_LEN)
561 reg |= GM_SMOD_JUMBO_ENA;
563 gma_write16(hw, port, GM_SERIAL_MODE, reg);
565 /* virtual address for data */
566 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
568 /* physical address: used for pause frames */
569 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
571 /* ignore counter overflows */
572 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
573 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
574 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
576 /* Configure Rx MAC FIFO */
577 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
578 sky2_write16(hw, SK_REG(port, RX_GMF_CTRL_T),
581 /* Flush Rx MAC FIFO on any flow control or error */
582 reg = GMR_FS_ANY_ERR;
583 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev <= 1)
584 reg = 0; /* WA dev #4.115 */
586 sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), reg);
587 /* Set threshold to 0xa (64 bytes)
588 * ASF disabled so no need to do WA dev #4.30
590 sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF);
592 /* Configure Tx MAC FIFO */
593 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
594 sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
597 static void sky2_ramset(struct sky2_hw *hw, u16 q, u32 start, size_t len)
603 end = start + len - 1;
605 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
606 sky2_write32(hw, RB_ADDR(q, RB_START), start);
607 sky2_write32(hw, RB_ADDR(q, RB_END), end);
608 sky2_write32(hw, RB_ADDR(q, RB_WP), start);
609 sky2_write32(hw, RB_ADDR(q, RB_RP), start);
611 if (q == Q_R1 || q == Q_R2) {
617 /* Set thresholds on receive queue's */
618 sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), rxup);
619 sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), rxlo);
621 /* Enable store & forward on Tx queue's because
622 * Tx FIFO is only 1K on Yukon
624 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
627 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
628 sky2_read8(hw, RB_ADDR(q, RB_CTRL));
631 /* Setup Bus Memory Interface */
632 static void sky2_qset(struct sky2_hw *hw, u16 q, u32 wm)
634 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET);
635 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT);
636 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON);
637 sky2_write32(hw, Q_ADDR(q, Q_WM), wm);
640 /* Setup prefetch unit registers. This is the interface between
641 * hardware and driver list elements
643 static inline void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr,
646 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
647 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR);
648 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), addr >> 32);
649 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), (u32) addr);
650 sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last);
651 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON);
653 sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL));
656 static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2)
658 struct sky2_tx_le *le = sky2->tx_le + sky2->tx_prod;
660 sky2->tx_prod = (sky2->tx_prod + 1) % TX_RING_SIZE;
665 * This is a workaround code taken from SysKonnect sk98lin driver
666 * to deal with chip bug on Yukon EC rev 0 in the wraparound case.
668 static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q,
669 u16 idx, u16 *last, u16 size)
671 if (is_ec_a1(hw) && idx < *last) {
672 u16 hwget = sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_GET_IDX));
675 /* Start prefetching again */
676 sky2_write8(hw, Y2_QADDR(q, PREF_UNIT_FIFO_WM), 0xe0);
680 if (hwget == size - 1) {
681 /* set watermark to one list element */
682 sky2_write8(hw, Y2_QADDR(q, PREF_UNIT_FIFO_WM), 8);
684 /* set put index to first list element */
685 sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), 0);
686 } else /* have hardware go to end of list */
687 sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX),
691 sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx);
697 static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2)
699 struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put;
700 sky2->rx_put = (sky2->rx_put + 1) % RX_LE_SIZE;
704 /* Build description to hardware about buffer */
705 static inline void sky2_rx_add(struct sky2_port *sky2, struct ring_info *re)
707 struct sky2_rx_le *le;
708 u32 hi = (re->mapaddr >> 16) >> 16;
710 re->idx = sky2->rx_put;
711 if (sky2->rx_addr64 != hi) {
712 le = sky2_next_rx(sky2);
713 le->addr = cpu_to_le32(hi);
715 le->opcode = OP_ADDR64 | HW_OWNER;
716 sky2->rx_addr64 = hi;
719 le = sky2_next_rx(sky2);
720 le->addr = cpu_to_le32((u32) re->mapaddr);
721 le->length = cpu_to_le16(re->maplen);
723 le->opcode = OP_PACKET | HW_OWNER;
727 /* Tell chip where to start receive checksum.
728 * Actually has two checksums, but set both same to avoid possible byte
731 static void rx_set_checksum(struct sky2_port *sky2)
733 struct sky2_rx_le *le;
735 le = sky2_next_rx(sky2);
736 le->addr = (ETH_HLEN << 16) | ETH_HLEN;
738 le->opcode = OP_TCPSTART | HW_OWNER;
740 sky2_write32(sky2->hw,
741 Q_ADDR(rxqaddr[sky2->port], Q_CSR),
742 sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
747 * The RX Stop command will not work for Yukon-2 if the BMU does not
748 * reach the end of packet and since we can't make sure that we have
749 * incoming data, we must reset the BMU while it is not doing a DMA
750 * transfer. Since it is possible that the RX path is still active,
751 * the RX RAM buffer will be stopped first, so any possible incoming
752 * data will not trigger a DMA. After the RAM buffer is stopped, the
753 * BMU is polled until any DMA in progress is ended and only then it
756 static void sky2_rx_stop(struct sky2_port *sky2)
758 struct sky2_hw *hw = sky2->hw;
759 unsigned rxq = rxqaddr[sky2->port];
762 /* disable the RAM Buffer receive queue */
763 sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD);
765 for (i = 0; i < 0xffff; i++)
766 if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL))
767 == sky2_read8(hw, RB_ADDR(rxq, Q_RL)))
770 printk(KERN_WARNING PFX "%s: receiver stop failed\n",
773 sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST);
775 /* reset the Rx prefetch unit */
776 sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
779 /* Clean out receive buffer area, assumes receiver hardware stopped */
780 static void sky2_rx_clean(struct sky2_port *sky2)
784 memset(sky2->rx_le, 0, RX_LE_BYTES);
785 for (i = 0; i < sky2->rx_pending; i++) {
786 struct ring_info *re = sky2->rx_ring + i;
789 pci_unmap_single(sky2->hw->pdev,
790 re->mapaddr, re->maplen,
798 #ifdef SKY2_VLAN_TAG_USED
799 static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
801 struct sky2_port *sky2 = netdev_priv(dev);
802 struct sky2_hw *hw = sky2->hw;
803 u16 port = sky2->port;
806 spin_lock_irqsave(&sky2->tx_lock, flags);
808 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_ON);
809 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_ON);
812 spin_unlock_irqrestore(&sky2->tx_lock, flags);
815 static void sky2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
817 struct sky2_port *sky2 = netdev_priv(dev);
818 struct sky2_hw *hw = sky2->hw;
819 u16 port = sky2->port;
822 spin_lock_irqsave(&sky2->tx_lock, flags);
824 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_OFF);
825 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_OFF);
827 sky2->vlgrp->vlan_devices[vid] = NULL;
829 spin_unlock_irqrestore(&sky2->tx_lock, flags);
833 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
834 static inline unsigned rx_size(const struct sky2_port *sky2)
836 return roundup(sky2->netdev->mtu + ETH_HLEN + 4, 8);
840 * Allocate and setup receiver buffer pool.
841 * In case of 64 bit dma, there are 2X as many list elements
842 * available as ring entries
843 * and need to reserve one list element so we don't wrap around.
845 * It appears the hardware has a bug in the FIFO logic that
846 * cause it to hang if the FIFO gets overrun and the receive buffer
847 * is not aligned. This means we can't use skb_reserve to align
850 static int sky2_rx_start(struct sky2_port *sky2)
852 struct sky2_hw *hw = sky2->hw;
853 unsigned size = rx_size(sky2);
854 unsigned rxq = rxqaddr[sky2->port];
857 sky2->rx_put = sky2->rx_next = 0;
858 sky2_qset(hw, rxq, is_pciex(hw) ? 0x80 : 0x600);
859 sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1);
861 rx_set_checksum(sky2);
862 for (i = 0; i < sky2->rx_pending; i++) {
863 struct ring_info *re = sky2->rx_ring + i;
865 re->skb = dev_alloc_skb(size);
869 re->mapaddr = pci_map_single(hw->pdev, re->skb->data,
870 size, PCI_DMA_FROMDEVICE);
872 sky2_rx_add(sky2, re);
875 /* Tell chip about available buffers */
876 sky2_write16(hw, Y2_QADDR(rxq, PREF_UNIT_PUT_IDX), sky2->rx_put);
877 sky2->rx_last_put = sky2_read16(hw, Y2_QADDR(rxq, PREF_UNIT_PUT_IDX));
884 /* Bring up network interface. */
885 static int sky2_up(struct net_device *dev)
887 struct sky2_port *sky2 = netdev_priv(dev);
888 struct sky2_hw *hw = sky2->hw;
889 unsigned port = sky2->port;
890 u32 ramsize, rxspace;
893 if (netif_msg_ifup(sky2))
894 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
896 /* must be power of 2 */
897 sky2->tx_le = pci_alloc_consistent(hw->pdev,
899 sizeof(struct sky2_tx_le),
904 sky2->tx_ring = kzalloc(TX_RING_SIZE * sizeof(struct ring_info),
908 sky2->tx_prod = sky2->tx_cons = 0;
910 sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES,
914 memset(sky2->rx_le, 0, RX_LE_BYTES);
916 sky2->rx_ring = kzalloc(sky2->rx_pending * sizeof(struct ring_info),
921 sky2_mac_init(hw, port);
923 /* Configure RAM buffers */
924 if (hw->chip_id == CHIP_ID_YUKON_FE ||
925 (hw->chip_id == CHIP_ID_YUKON_EC && hw->chip_rev == 2))
928 u8 e0 = sky2_read8(hw, B2_E_0);
929 ramsize = (e0 == 0) ? (128 * 1024) : (e0 * 4096);
933 rxspace = (2 * ramsize) / 3;
934 sky2_ramset(hw, rxqaddr[port], 0, rxspace);
935 sky2_ramset(hw, txqaddr[port], rxspace, ramsize - rxspace);
937 /* Make sure SyncQ is disabled */
938 sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL),
941 sky2_qset(hw, txqaddr[port], 0x600);
942 sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map,
945 err = sky2_rx_start(sky2);
949 /* Enable interrupts from phy/mac for port */
950 hw->intr_mask |= (port == 0) ? Y2_IS_PORT_1 : Y2_IS_PORT_2;
951 sky2_write32(hw, B0_IMSK, hw->intr_mask);
956 pci_free_consistent(hw->pdev, RX_LE_BYTES,
957 sky2->rx_le, sky2->rx_le_map);
959 pci_free_consistent(hw->pdev,
960 TX_RING_SIZE * sizeof(struct sky2_tx_le),
961 sky2->tx_le, sky2->tx_le_map);
963 kfree(sky2->tx_ring);
965 kfree(sky2->rx_ring);
970 /* Modular subtraction in ring */
971 static inline int tx_dist(unsigned tail, unsigned head)
973 return (head >= tail ? head : head + TX_RING_SIZE) - tail;
976 /* Number of list elements available for next tx */
977 static inline int tx_avail(const struct sky2_port *sky2)
979 return sky2->tx_pending - tx_dist(sky2->tx_cons, sky2->tx_prod);
982 /* Estimate of number of transmit list elements required */
983 static inline unsigned tx_le_req(const struct sk_buff *skb)
987 count = sizeof(dma_addr_t) / sizeof(u32);
988 count += skb_shinfo(skb)->nr_frags * count;
990 if (skb_shinfo(skb)->tso_size)
1000 * Put one packet in ring for transmit.
1001 * A single packet can generate multiple list elements, and
1002 * the number of ring elements will probably be less than the number
1003 * of list elements used.
1005 static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
1007 struct sky2_port *sky2 = netdev_priv(dev);
1008 struct sky2_hw *hw = sky2->hw;
1009 struct sky2_tx_le *le = NULL;
1010 struct ring_info *re;
1011 unsigned long flags;
1018 local_irq_save(flags);
1019 if (!spin_trylock(&sky2->tx_lock)) {
1020 local_irq_restore(flags);
1021 return NETDEV_TX_LOCKED;
1024 if (unlikely(tx_avail(sky2) < tx_le_req(skb))) {
1025 netif_stop_queue(dev);
1026 spin_unlock_irqrestore(&sky2->tx_lock, flags);
1028 printk(KERN_WARNING PFX "%s: ring full when queue awake!\n",
1030 return NETDEV_TX_BUSY;
1033 if (unlikely(netif_msg_tx_queued(sky2)))
1034 printk(KERN_DEBUG "%s: tx queued, slot %u, len %d\n",
1035 dev->name, sky2->tx_prod, skb->len);
1037 len = skb_headlen(skb);
1038 mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
1039 addr64 = (mapping >> 16) >> 16;
1041 re = sky2->tx_ring + sky2->tx_prod;
1043 /* Send high bits if changed */
1044 if (addr64 != sky2->tx_addr64) {
1045 le = get_tx_le(sky2);
1046 le->tx.addr = cpu_to_le32(addr64);
1048 le->opcode = OP_ADDR64 | HW_OWNER;
1049 sky2->tx_addr64 = addr64;
1052 /* Check for TCP Segmentation Offload */
1053 mss = skb_shinfo(skb)->tso_size;
1055 /* just drop the packet if non-linear expansion fails */
1056 if (skb_header_cloned(skb) &&
1057 pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
1058 dev_kfree_skb_any(skb);
1062 mss += ((skb->h.th->doff - 5) * 4); /* TCP options */
1063 mss += (skb->nh.iph->ihl * 4) + sizeof(struct tcphdr);
1067 if (mss != sky2->tx_last_mss) {
1068 le = get_tx_le(sky2);
1069 le->tx.tso.size = cpu_to_le16(mss);
1070 le->tx.tso.rsvd = 0;
1071 le->opcode = OP_LRGLEN | HW_OWNER;
1073 sky2->tx_last_mss = mss;
1077 #ifdef SKY2_VLAN_TAG_USED
1078 /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */
1079 if (sky2->vlgrp && vlan_tx_tag_present(skb)) {
1081 le = get_tx_le(sky2);
1083 le->opcode = OP_VLAN|HW_OWNER;
1086 le->opcode |= OP_VLAN;
1087 le->length = cpu_to_be16(vlan_tx_tag_get(skb));
1092 /* Handle TCP checksum offload */
1093 if (skb->ip_summed == CHECKSUM_HW) {
1094 u16 hdr = skb->h.raw - skb->data;
1095 u16 offset = hdr + skb->csum;
1097 ctrl = CALSUM | WR_SUM | INIT_SUM | LOCK_SUM;
1098 if (skb->nh.iph->protocol == IPPROTO_UDP)
1101 le = get_tx_le(sky2);
1102 le->tx.csum.start = cpu_to_le16(hdr);
1103 le->tx.csum.offset = cpu_to_le16(offset);
1104 le->length = 0; /* initial checksum value */
1105 le->ctrl = 1; /* one packet */
1106 le->opcode = OP_TCPLISW | HW_OWNER;
1109 le = get_tx_le(sky2);
1110 le->tx.addr = cpu_to_le32((u32) mapping);
1111 le->length = cpu_to_le16(len);
1113 le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER);
1115 /* Record the transmit mapping info */
1117 re->mapaddr = mapping;
1120 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
1121 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1122 struct ring_info *fre;
1124 mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset,
1125 frag->size, PCI_DMA_TODEVICE);
1126 addr64 = (mapping >> 16) >> 16;
1127 if (addr64 != sky2->tx_addr64) {
1128 le = get_tx_le(sky2);
1129 le->tx.addr = cpu_to_le32(addr64);
1131 le->opcode = OP_ADDR64 | HW_OWNER;
1132 sky2->tx_addr64 = addr64;
1135 le = get_tx_le(sky2);
1136 le->tx.addr = cpu_to_le32((u32) mapping);
1137 le->length = cpu_to_le16(frag->size);
1139 le->opcode = OP_BUFFER | HW_OWNER;
1142 + ((re - sky2->tx_ring) + i + 1) % TX_RING_SIZE;
1144 fre->mapaddr = mapping;
1145 fre->maplen = frag->size;
1147 re->idx = sky2->tx_prod;
1150 sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod,
1151 &sky2->tx_last_put, TX_RING_SIZE);
1153 if (tx_avail(sky2) < MAX_SKB_TX_LE + 1)
1154 netif_stop_queue(dev);
1158 spin_unlock_irqrestore(&sky2->tx_lock, flags);
1160 dev->trans_start = jiffies;
1161 return NETDEV_TX_OK;
1165 * Free ring elements from starting at tx_cons until "done"
1167 * NB: the hardware will tell us about partial completion of multi-part
1168 * buffers; these are deferred until completion.
1170 static void sky2_tx_complete(struct sky2_port *sky2, u16 done)
1172 struct net_device *dev = sky2->netdev;
1175 if (unlikely(netif_msg_tx_done(sky2)))
1176 printk(KERN_DEBUG "%s: tx done, up to %u\n",
1179 spin_lock(&sky2->tx_lock);
1181 while (sky2->tx_cons != done) {
1182 struct ring_info *re = sky2->tx_ring + sky2->tx_cons;
1183 struct sk_buff *skb;
1185 /* Check for partial status */
1186 if (tx_dist(sky2->tx_cons, done)
1187 < tx_dist(sky2->tx_cons, re->idx))
1191 pci_unmap_single(sky2->hw->pdev,
1192 re->mapaddr, re->maplen, PCI_DMA_TODEVICE);
1194 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
1195 struct ring_info *fre;
1197 sky2->tx_ring + (sky2->tx_cons + i +
1199 pci_unmap_page(sky2->hw->pdev, fre->mapaddr,
1200 fre->maplen, PCI_DMA_TODEVICE);
1203 dev_kfree_skb_any(skb);
1205 sky2->tx_cons = re->idx;
1209 if (netif_queue_stopped(dev) && tx_avail(sky2) > MAX_SKB_TX_LE)
1210 netif_wake_queue(dev);
1211 spin_unlock(&sky2->tx_lock);
1214 /* Cleanup all untransmitted buffers, assume transmitter not running */
1215 static inline void sky2_tx_clean(struct sky2_port *sky2)
1217 sky2_tx_complete(sky2, sky2->tx_prod);
1220 /* Network shutdown */
1221 static int sky2_down(struct net_device *dev)
1223 struct sky2_port *sky2 = netdev_priv(dev);
1224 struct sky2_hw *hw = sky2->hw;
1225 unsigned port = sky2->port;
1228 if (netif_msg_ifdown(sky2))
1229 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
1231 netif_stop_queue(dev);
1233 sky2_phy_reset(hw, port);
1235 /* Stop transmitter */
1236 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP);
1237 sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR));
1239 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
1240 RB_RST_SET | RB_DIS_OP_MD);
1242 ctrl = gma_read16(hw, port, GM_GP_CTRL);
1243 ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA);
1244 gma_write16(hw, port, GM_GP_CTRL, ctrl);
1246 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
1248 /* Workaround shared GMAC reset */
1249 if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0
1250 && port == 0 && hw->dev[1] && netif_running(hw->dev[1])))
1251 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
1253 /* Disable Force Sync bit and Enable Alloc bit */
1254 sky2_write8(hw, SK_REG(port, TXA_CTRL),
1255 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
1257 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
1258 sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
1259 sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
1261 /* Reset the PCI FIFO of the async Tx queue */
1262 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR),
1263 BMU_RST_SET | BMU_FIFO_RST);
1265 /* Reset the Tx prefetch units */
1266 sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL),
1269 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
1273 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
1274 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
1276 /* turn off LED's */
1277 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
1279 sky2_tx_clean(sky2);
1280 sky2_rx_clean(sky2);
1282 pci_free_consistent(hw->pdev, RX_LE_BYTES,
1283 sky2->rx_le, sky2->rx_le_map);
1284 kfree(sky2->rx_ring);
1286 pci_free_consistent(hw->pdev,
1287 TX_RING_SIZE * sizeof(struct sky2_tx_le),
1288 sky2->tx_le, sky2->tx_le_map);
1289 kfree(sky2->tx_ring);
1294 static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux)
1299 if (hw->chip_id == CHIP_ID_YUKON_FE)
1300 return (aux & PHY_M_PS_SPEED_100) ? SPEED_100 : SPEED_10;
1302 switch (aux & PHY_M_PS_SPEED_MSK) {
1303 case PHY_M_PS_SPEED_1000:
1305 case PHY_M_PS_SPEED_100:
1312 static void sky2_link_up(struct sky2_port *sky2)
1314 struct sky2_hw *hw = sky2->hw;
1315 unsigned port = sky2->port;
1318 /* disable Rx GMAC FIFO flush mode */
1319 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RX_F_FL_OFF);
1321 /* Enable Transmit FIFO Underrun */
1322 sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
1324 reg = gma_read16(hw, port, GM_GP_CTRL);
1325 if (sky2->duplex == DUPLEX_FULL || sky2->autoneg == AUTONEG_ENABLE)
1326 reg |= GM_GPCR_DUP_FULL;
1329 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
1330 gma_write16(hw, port, GM_GP_CTRL, reg);
1331 gma_read16(hw, port, GM_GP_CTRL);
1333 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
1335 netif_carrier_on(sky2->netdev);
1336 netif_wake_queue(sky2->netdev);
1338 /* Turn on link LED */
1339 sky2_write8(hw, SK_REG(port, LNK_LED_REG),
1340 LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF);
1342 if (hw->chip_id == CHIP_ID_YUKON_XL) {
1343 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
1345 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
1346 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
1347 PHY_M_LEDC_INIT_CTRL(sky2->speed ==
1349 PHY_M_LEDC_STA1_CTRL(sky2->speed ==
1350 SPEED_100 ? 7 : 0) |
1351 PHY_M_LEDC_STA0_CTRL(sky2->speed ==
1352 SPEED_1000 ? 7 : 0));
1353 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
1356 if (netif_msg_link(sky2))
1357 printk(KERN_INFO PFX
1358 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
1359 sky2->netdev->name, sky2->speed,
1360 sky2->duplex == DUPLEX_FULL ? "full" : "half",
1361 (sky2->tx_pause && sky2->rx_pause) ? "both" :
1362 sky2->tx_pause ? "tx" : sky2->rx_pause ? "rx" : "none");
1365 static void sky2_link_down(struct sky2_port *sky2)
1367 struct sky2_hw *hw = sky2->hw;
1368 unsigned port = sky2->port;
1371 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
1373 reg = gma_read16(hw, port, GM_GP_CTRL);
1374 reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
1375 gma_write16(hw, port, GM_GP_CTRL, reg);
1376 gma_read16(hw, port, GM_GP_CTRL); /* PCI post */
1378 if (sky2->rx_pause && !sky2->tx_pause) {
1379 /* restore Asymmetric Pause bit */
1380 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
1381 gm_phy_read(hw, port, PHY_MARV_AUNE_ADV)
1385 sky2_phy_reset(hw, port);
1387 netif_carrier_off(sky2->netdev);
1388 netif_stop_queue(sky2->netdev);
1390 /* Turn on link LED */
1391 sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
1393 if (netif_msg_link(sky2))
1394 printk(KERN_INFO PFX "%s: Link is down.\n", sky2->netdev->name);
1395 sky2_phy_init(hw, port);
1398 static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux)
1400 struct sky2_hw *hw = sky2->hw;
1401 unsigned port = sky2->port;
1404 lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP);
1406 if (lpa & PHY_M_AN_RF) {
1407 printk(KERN_ERR PFX "%s: remote fault", sky2->netdev->name);
1411 if (hw->chip_id != CHIP_ID_YUKON_FE &&
1412 gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) {
1413 printk(KERN_ERR PFX "%s: master/slave fault",
1414 sky2->netdev->name);
1418 if (!(aux & PHY_M_PS_SPDUP_RES)) {
1419 printk(KERN_ERR PFX "%s: speed/duplex mismatch",
1420 sky2->netdev->name);
1424 sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
1426 sky2->speed = sky2_phy_speed(hw, aux);
1428 /* Pause bits are offset (9..8) */
1429 if (hw->chip_id == CHIP_ID_YUKON_XL)
1432 sky2->rx_pause = (aux & PHY_M_PS_RX_P_EN) != 0;
1433 sky2->tx_pause = (aux & PHY_M_PS_TX_P_EN) != 0;
1435 if ((sky2->tx_pause || sky2->rx_pause)
1436 && !(sky2->speed < SPEED_1000 && sky2->duplex == DUPLEX_HALF))
1437 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
1439 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1445 * Interrupt from PHY are handled in tasklet (soft irq)
1446 * because accessing phy registers requires spin wait which might
1447 * cause excess interrupt latency.
1449 static void sky2_phy_task(unsigned long data)
1451 struct sky2_port *sky2 = (struct sky2_port *)data;
1452 struct sky2_hw *hw = sky2->hw;
1453 u16 istatus, phystat;
1455 spin_lock(&hw->phy_lock);
1456 istatus = gm_phy_read(hw, sky2->port, PHY_MARV_INT_STAT);
1457 phystat = gm_phy_read(hw, sky2->port, PHY_MARV_PHY_STAT);
1459 if (netif_msg_intr(sky2))
1460 printk(KERN_INFO PFX "%s: phy interrupt status 0x%x 0x%x\n",
1461 sky2->netdev->name, istatus, phystat);
1463 if (istatus & PHY_M_IS_AN_COMPL) {
1464 if (sky2_autoneg_done(sky2, phystat) == 0)
1469 if (istatus & PHY_M_IS_LSP_CHANGE)
1470 sky2->speed = sky2_phy_speed(hw, phystat);
1472 if (istatus & PHY_M_IS_DUP_CHANGE)
1474 (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
1476 if (istatus & PHY_M_IS_LST_CHANGE) {
1477 if (phystat & PHY_M_PS_LINK_UP)
1480 sky2_link_down(sky2);
1483 spin_unlock(&hw->phy_lock);
1485 local_irq_disable();
1486 hw->intr_mask |= (sky2->port == 0) ? Y2_IS_IRQ_PHY1 : Y2_IS_IRQ_PHY2;
1487 sky2_write32(hw, B0_IMSK, hw->intr_mask);
1491 static void sky2_tx_timeout(struct net_device *dev)
1493 struct sky2_port *sky2 = netdev_priv(dev);
1495 if (netif_msg_timer(sky2))
1496 printk(KERN_ERR PFX "%s: tx timeout\n", dev->name);
1498 sky2_write32(sky2->hw, Q_ADDR(txqaddr[sky2->port], Q_CSR), BMU_STOP);
1499 sky2_read32(sky2->hw, Q_ADDR(txqaddr[sky2->port], Q_CSR));
1501 sky2_tx_clean(sky2);
1504 static int sky2_change_mtu(struct net_device *dev, int new_mtu)
1506 struct sky2_port *sky2 = netdev_priv(dev);
1507 struct sky2_hw *hw = sky2->hw;
1511 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
1514 if (!netif_running(dev)) {
1519 local_irq_disable();
1520 sky2_write32(hw, B0_IMSK, 0);
1522 ctl = gma_read16(hw, sky2->port, GM_GP_CTRL);
1523 gma_write16(hw, sky2->port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA);
1525 sky2_rx_clean(sky2);
1528 mode = DATA_BLIND_VAL(DATA_BLIND_DEF) |
1529 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
1531 if (dev->mtu > ETH_DATA_LEN)
1532 mode |= GM_SMOD_JUMBO_ENA;
1534 gma_write16(hw, sky2->port, GM_SERIAL_MODE, mode);
1536 sky2_write8(hw, RB_ADDR(rxqaddr[sky2->port], RB_CTRL), RB_ENA_OP_MD);
1538 err = sky2_rx_start(sky2);
1539 gma_write16(hw, sky2->port, GM_GP_CTRL, ctl);
1541 sky2_write32(hw, B0_IMSK, hw->intr_mask);
1542 sky2_read32(hw, B0_IMSK);
1548 * Receive one packet.
1549 * For small packets or errors, just reuse existing skb.
1550 * For larger packets, get new buffer.
1552 static struct sk_buff *sky2_receive(struct sky2_port *sky2,
1553 u16 length, u32 status)
1555 struct ring_info *re = sky2->rx_ring + sky2->rx_next;
1556 struct sk_buff *skb = NULL;
1557 struct net_device *dev;
1558 const unsigned int bufsize = rx_size(sky2);
1560 if (unlikely(netif_msg_rx_status(sky2)))
1561 printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n",
1562 sky2->netdev->name, sky2->rx_next, status, length);
1564 sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending;
1566 if (!(status & GMR_FS_RX_OK) || (status & GMR_FS_ANY_ERR))
1569 if (length < RX_COPY_THRESHOLD) {
1570 skb = alloc_skb(length + 2, GFP_ATOMIC);
1574 skb_reserve(skb, 2);
1575 pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->mapaddr,
1576 length, PCI_DMA_FROMDEVICE);
1577 memcpy(skb->data, re->skb->data, length);
1578 skb->ip_summed = re->skb->ip_summed;
1579 skb->csum = re->skb->csum;
1580 pci_dma_sync_single_for_device(sky2->hw->pdev, re->mapaddr,
1581 length, PCI_DMA_FROMDEVICE);
1583 struct sk_buff *nskb;
1585 nskb = dev_alloc_skb(bufsize);
1591 pci_unmap_single(sky2->hw->pdev, re->mapaddr,
1592 re->maplen, PCI_DMA_FROMDEVICE);
1593 prefetch(skb->data);
1595 re->mapaddr = pci_map_single(sky2->hw->pdev, nskb->data,
1596 bufsize, PCI_DMA_FROMDEVICE);
1597 re->maplen = bufsize;
1600 skb_put(skb, length);
1603 skb->protocol = eth_type_trans(skb, dev);
1604 dev->last_rx = jiffies;
1607 re->skb->ip_summed = CHECKSUM_NONE;
1608 sky2_rx_add(sky2, re);
1610 /* Tell receiver about new buffers. */
1611 sky2_put_idx(sky2->hw, rxqaddr[sky2->port], sky2->rx_put,
1612 &sky2->rx_last_put, RX_LE_SIZE);
1617 if (status & GMR_FS_GOOD_FC)
1620 if (netif_msg_rx_err(sky2))
1621 printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n",
1622 sky2->netdev->name, status, length);
1624 if (status & (GMR_FS_LONG_ERR | GMR_FS_UN_SIZE))
1625 sky2->net_stats.rx_length_errors++;
1626 if (status & GMR_FS_FRAGMENT)
1627 sky2->net_stats.rx_frame_errors++;
1628 if (status & GMR_FS_CRC_ERR)
1629 sky2->net_stats.rx_crc_errors++;
1630 if (status & GMR_FS_RX_FF_OV)
1631 sky2->net_stats.rx_fifo_errors++;
1636 /* Transmit ring index in reported status block is encoded as:
1638 * | TXS2 | TXA2 | TXS1 | TXA1
1640 static inline u16 tx_index(u8 port, u32 status, u16 len)
1643 return status & 0xfff;
1645 return ((status >> 24) & 0xff) | (len & 0xf) << 8;
1649 * Both ports share the same status interrupt, therefore there is only
1652 static int sky2_poll(struct net_device *dev0, int *budget)
1654 struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw;
1655 unsigned int to_do = min(dev0->quota, *budget);
1656 unsigned int work_done = 0;
1659 hwidx = sky2_read16(hw, STAT_PUT_IDX);
1660 BUG_ON(hwidx >= STATUS_RING_SIZE);
1664 struct sky2_status_le *le = hw->st_le + hw->st_idx;
1665 struct sky2_port *sky2;
1666 struct sk_buff *skb;
1670 /* Are we done yet? */
1671 if (hw->st_idx == hwidx) {
1672 sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
1673 hwidx = sky2_read16(hw, STAT_PUT_IDX);
1674 if (hwidx == hw->st_idx)
1678 hw->st_idx = (hw->st_idx + 1) % STATUS_RING_SIZE;
1679 prefetch(&hw->st_le[hw->st_idx]);
1681 BUG_ON(le->link >= hw->ports || !hw->dev[le->link]);
1683 sky2 = netdev_priv(hw->dev[le->link]);
1684 status = le32_to_cpu(le->status);
1685 length = le16_to_cpu(le->length);
1687 switch (le->opcode & ~HW_OWNER) {
1689 skb = sky2_receive(sky2, length, status);
1692 #ifdef SKY2_VLAN_TAG_USED
1693 if (sky2->vlgrp && (status & GMR_FS_VLAN)) {
1694 vlan_hwaccel_receive_skb(skb,
1696 be16_to_cpu(sky2->rx_tag));
1699 netif_receive_skb(skb);
1703 #ifdef SKY2_VLAN_TAG_USED
1705 sky2->rx_tag = length;
1709 sky2->rx_tag = length;
1713 skb = sky2->rx_ring[sky2->rx_next].skb;
1714 skb->ip_summed = CHECKSUM_HW;
1715 skb->csum = le16_to_cpu(status);
1719 sky2_tx_complete(sky2,
1720 tx_index(sky2->port, status, length));
1724 if (net_ratelimit())
1725 printk(KERN_WARNING PFX
1726 "unknown status opcode 0x%x\n",
1731 le->opcode = 0; /* paranoia */
1732 } while (work_done < to_do);
1736 *budget -= work_done;
1737 dev0->quota -= work_done;
1738 if (work_done < to_do) {
1740 * Another chip workaround, need to restart TX timer if status
1741 * LE was handled. WA_DEV_43_418
1744 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
1745 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
1748 netif_rx_complete(dev0);
1749 hw->intr_mask |= Y2_IS_STAT_BMU;
1750 sky2_write32(hw, B0_IMSK, hw->intr_mask);
1751 sky2_read32(hw, B0_IMSK);
1754 return work_done >= to_do;
1758 static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status)
1760 struct net_device *dev = hw->dev[port];
1762 printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n",
1765 if (status & Y2_IS_PAR_RD1) {
1766 printk(KERN_ERR PFX "%s: ram data read parity error\n",
1769 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR);
1772 if (status & Y2_IS_PAR_WR1) {
1773 printk(KERN_ERR PFX "%s: ram data write parity error\n",
1776 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR);
1779 if (status & Y2_IS_PAR_MAC1) {
1780 printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name);
1781 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE);
1784 if (status & Y2_IS_PAR_RX1) {
1785 printk(KERN_ERR PFX "%s: RX parity error\n", dev->name);
1786 sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR);
1789 if (status & Y2_IS_TCP_TXA1) {
1790 printk(KERN_ERR PFX "%s: TCP segmentation error\n", dev->name);
1791 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP);
1795 static void sky2_hw_intr(struct sky2_hw *hw)
1797 u32 status = sky2_read32(hw, B0_HWE_ISRC);
1799 if (status & Y2_IS_TIST_OV)
1800 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
1802 if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) {
1805 pci_read_config_word(hw->pdev, PCI_STATUS, &pci_err);
1806 printk(KERN_ERR PFX "%s: pci hw error (0x%x)\n",
1807 pci_name(hw->pdev), pci_err);
1809 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
1810 pci_write_config_word(hw->pdev, PCI_STATUS,
1811 pci_err | PCI_STATUS_ERROR_BITS);
1812 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
1815 if (status & Y2_IS_PCI_EXP) {
1816 /* PCI-Express uncorrectable Error occurred */
1819 pci_read_config_dword(hw->pdev, PEX_UNC_ERR_STAT, &pex_err);
1821 printk(KERN_ERR PFX "%s: pci express error (0x%x)\n",
1822 pci_name(hw->pdev), pex_err);
1824 /* clear the interrupt */
1825 sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
1826 pci_write_config_dword(hw->pdev, PEX_UNC_ERR_STAT,
1828 sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
1830 if (pex_err & PEX_FATAL_ERRORS) {
1831 u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK);
1832 hwmsk &= ~Y2_IS_PCI_EXP;
1833 sky2_write32(hw, B0_HWE_IMSK, hwmsk);
1837 if (status & Y2_HWE_L1_MASK)
1838 sky2_hw_error(hw, 0, status);
1840 if (status & Y2_HWE_L1_MASK)
1841 sky2_hw_error(hw, 1, status);
1844 static void sky2_mac_intr(struct sky2_hw *hw, unsigned port)
1846 struct net_device *dev = hw->dev[port];
1847 struct sky2_port *sky2 = netdev_priv(dev);
1848 u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
1850 if (netif_msg_intr(sky2))
1851 printk(KERN_INFO PFX "%s: mac interrupt status 0x%x\n",
1854 if (status & GM_IS_RX_FF_OR) {
1855 ++sky2->net_stats.rx_fifo_errors;
1856 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
1859 if (status & GM_IS_TX_FF_UR) {
1860 ++sky2->net_stats.tx_fifo_errors;
1861 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
1865 static void sky2_phy_intr(struct sky2_hw *hw, unsigned port)
1867 struct net_device *dev = hw->dev[port];
1868 struct sky2_port *sky2 = netdev_priv(dev);
1870 hw->intr_mask &= ~(port == 0 ? Y2_IS_IRQ_PHY1 : Y2_IS_IRQ_PHY2);
1871 sky2_write32(hw, B0_IMSK, hw->intr_mask);
1872 tasklet_schedule(&sky2->phy_task);
1875 static irqreturn_t sky2_intr(int irq, void *dev_id, struct pt_regs *regs)
1877 struct sky2_hw *hw = dev_id;
1878 struct net_device *dev0 = hw->dev[0];
1881 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
1882 if (status == 0 || status == ~0)
1885 if (status & Y2_IS_HW_ERR)
1888 /* Do NAPI for Rx and Tx status */
1889 if (status & Y2_IS_STAT_BMU) {
1890 hw->intr_mask &= ~Y2_IS_STAT_BMU;
1891 sky2_write32(hw, B0_IMSK, hw->intr_mask);
1892 prefetch(&hw->st_le[hw->st_idx]);
1894 if (netif_rx_schedule_test(dev0))
1895 __netif_rx_schedule(dev0);
1898 if (status & Y2_IS_IRQ_PHY1)
1899 sky2_phy_intr(hw, 0);
1901 if (status & Y2_IS_IRQ_PHY2)
1902 sky2_phy_intr(hw, 1);
1904 if (status & Y2_IS_IRQ_MAC1)
1905 sky2_mac_intr(hw, 0);
1907 if (status & Y2_IS_IRQ_MAC2)
1908 sky2_mac_intr(hw, 1);
1910 sky2_write32(hw, B0_Y2_SP_ICR, 2);
1912 sky2_read32(hw, B0_IMSK);
1917 #ifdef CONFIG_NET_POLL_CONTROLLER
1918 static void sky2_netpoll(struct net_device *dev)
1920 struct sky2_port *sky2 = netdev_priv(dev);
1922 sky2_intr(sky2->hw->pdev->irq, sky2->hw, NULL);
1926 /* Chip internal frequency for clock calculations */
1927 static inline u32 sky2_khz(const struct sky2_hw *hw)
1929 switch (hw->chip_id) {
1930 case CHIP_ID_YUKON_EC:
1931 return 125000; /* 125 Mhz */
1932 case CHIP_ID_YUKON_FE:
1933 return 100000; /* 100 Mhz */
1934 default: /* YUKON_XL */
1935 return 156000; /* 156 Mhz */
1939 static inline u32 sky2_ms2clk(const struct sky2_hw *hw, u32 ms)
1941 return sky2_khz(hw) * ms;
1944 static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us)
1946 return (sky2_khz(hw) * us) / 1000;
1949 static int sky2_reset(struct sky2_hw *hw)
1956 ctst = sky2_read32(hw, B0_CTST);
1958 sky2_write8(hw, B0_CTST, CS_RST_CLR);
1959 hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
1960 if (hw->chip_id < CHIP_ID_YUKON_XL || hw->chip_id > CHIP_ID_YUKON_FE) {
1961 printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n",
1962 pci_name(hw->pdev), hw->chip_id);
1966 /* ring for status responses */
1967 hw->st_le = pci_alloc_consistent(hw->pdev, STATUS_LE_BYTES,
1973 if (hw->chip_id <= CHIP_ID_YUKON_EC) {
1974 sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
1975 sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE);
1979 sky2_write8(hw, B0_CTST, CS_RST_SET);
1980 sky2_write8(hw, B0_CTST, CS_RST_CLR);
1982 /* clear PCI errors, if any */
1983 pci_read_config_word(hw->pdev, PCI_STATUS, &status);
1984 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
1985 pci_write_config_word(hw->pdev, PCI_STATUS,
1986 status | PCI_STATUS_ERROR_BITS);
1988 sky2_write8(hw, B0_CTST, CS_MRST_CLR);
1990 /* clear any PEX errors */
1993 pci_write_config_dword(hw->pdev, PEX_UNC_ERR_STAT,
1995 pci_read_config_word(hw->pdev, PEX_LNK_STAT, &lstat);
1998 pmd_type = sky2_read8(hw, B2_PMD_TYP);
1999 hw->copper = !(pmd_type == 'L' || pmd_type == 'S');
2002 t8 = sky2_read8(hw, B2_Y2_HW_RES);
2003 if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
2004 if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC))
2007 hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
2009 sky2_set_power_state(hw, PCI_D0);
2011 for (i = 0; i < hw->ports; i++) {
2012 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
2013 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
2016 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2018 /* Clear I2C IRQ noise */
2019 sky2_write32(hw, B2_I2C_IRQ, 1);
2021 /* turn off hardware timer (unused) */
2022 sky2_write8(hw, B2_TI_CTRL, TIM_STOP);
2023 sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
2025 sky2_write8(hw, B0_Y2LED, LED_STAT_ON);
2027 /* Turn on descriptor polling (every 75us) */
2028 sky2_write32(hw, B28_DPT_INI, sky2_us2clk(hw, 75));
2029 sky2_write8(hw, B28_DPT_CTRL, DPT_START);
2031 /* Turn off receive timestamp */
2032 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP);
2033 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
2035 /* enable the Tx Arbiters */
2036 for (i = 0; i < hw->ports; i++)
2037 sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
2039 /* Initialize ram interface */
2040 for (i = 0; i < hw->ports; i++) {
2041 sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR);
2043 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53);
2044 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53);
2045 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53);
2046 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53);
2047 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53);
2048 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53);
2049 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53);
2050 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53);
2051 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53);
2052 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53);
2053 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53);
2054 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53);
2060 /* change Max. Read Request Size to 2048 bytes */
2061 pci_read_config_word(hw->pdev, PEX_DEV_CTRL, &pctrl);
2062 pctrl &= ~PEX_DC_MAX_RRS_MSK;
2063 pctrl |= PEX_DC_MAX_RD_RQ_SIZE(4);
2066 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2067 pci_write_config_word(hw->pdev, PEX_DEV_CTRL, pctrl);
2068 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2071 sky2_write32(hw, B0_HWE_IMSK, Y2_HWE_ALL_MASK);
2073 spin_lock_bh(&hw->phy_lock);
2074 for (i = 0; i < hw->ports; i++)
2075 sky2_phy_reset(hw, i);
2076 spin_unlock_bh(&hw->phy_lock);
2078 memset(hw->st_le, 0, STATUS_LE_BYTES);
2081 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET);
2082 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR);
2084 sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma);
2085 sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32);
2087 /* Set the list last index */
2088 sky2_write16(hw, STAT_LAST_IDX, STATUS_RING_SIZE - 1);
2090 sky2_write32(hw, STAT_TX_TIMER_INI, sky2_ms2clk(hw, 10));
2092 /* These status setup values are copied from SysKonnect's driver */
2094 /* WA for dev. #4.3 */
2095 sky2_write16(hw, STAT_TX_IDX_TH, 0xfff); /* Tx Threshold */
2097 /* set Status-FIFO watermark */
2098 sky2_write8(hw, STAT_FIFO_WM, 0x21); /* WA for dev. #4.18 */
2100 /* set Status-FIFO ISR watermark */
2101 sky2_write8(hw, STAT_FIFO_ISR_WM, 0x07); /* WA for dev. #4.18 */
2104 sky2_write16(hw, STAT_TX_IDX_TH, 0x000a);
2106 /* set Status-FIFO watermark */
2107 sky2_write8(hw, STAT_FIFO_WM, 0x10);
2109 /* set Status-FIFO ISR watermark */
2110 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0)
2111 sky2_write8(hw, STAT_FIFO_ISR_WM, 0x10);
2113 else /* WA dev 4.109 */
2114 sky2_write8(hw, STAT_FIFO_ISR_WM, 0x04);
2116 sky2_write32(hw, STAT_ISR_TIMER_INI, 0x0190);
2119 /* enable status unit */
2120 sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON);
2122 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
2123 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
2124 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
2129 static inline u32 sky2_supported_modes(const struct sky2_hw *hw)
2133 modes = SUPPORTED_10baseT_Half
2134 | SUPPORTED_10baseT_Full
2135 | SUPPORTED_100baseT_Half
2136 | SUPPORTED_100baseT_Full
2137 | SUPPORTED_Autoneg | SUPPORTED_TP;
2139 if (hw->chip_id != CHIP_ID_YUKON_FE)
2140 modes |= SUPPORTED_1000baseT_Half
2141 | SUPPORTED_1000baseT_Full;
2143 modes = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE
2144 | SUPPORTED_Autoneg;
2148 static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2150 struct sky2_port *sky2 = netdev_priv(dev);
2151 struct sky2_hw *hw = sky2->hw;
2153 ecmd->transceiver = XCVR_INTERNAL;
2154 ecmd->supported = sky2_supported_modes(hw);
2155 ecmd->phy_address = PHY_ADDR_MARV;
2157 ecmd->supported = SUPPORTED_10baseT_Half
2158 | SUPPORTED_10baseT_Full
2159 | SUPPORTED_100baseT_Half
2160 | SUPPORTED_100baseT_Full
2161 | SUPPORTED_1000baseT_Half
2162 | SUPPORTED_1000baseT_Full
2163 | SUPPORTED_Autoneg | SUPPORTED_TP;
2164 ecmd->port = PORT_TP;
2166 ecmd->port = PORT_FIBRE;
2168 ecmd->advertising = sky2->advertising;
2169 ecmd->autoneg = sky2->autoneg;
2170 ecmd->speed = sky2->speed;
2171 ecmd->duplex = sky2->duplex;
2175 static int sky2_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2177 struct sky2_port *sky2 = netdev_priv(dev);
2178 const struct sky2_hw *hw = sky2->hw;
2179 u32 supported = sky2_supported_modes(hw);
2181 if (ecmd->autoneg == AUTONEG_ENABLE) {
2182 ecmd->advertising = supported;
2188 switch (ecmd->speed) {
2190 if (ecmd->duplex == DUPLEX_FULL)
2191 setting = SUPPORTED_1000baseT_Full;
2192 else if (ecmd->duplex == DUPLEX_HALF)
2193 setting = SUPPORTED_1000baseT_Half;
2198 if (ecmd->duplex == DUPLEX_FULL)
2199 setting = SUPPORTED_100baseT_Full;
2200 else if (ecmd->duplex == DUPLEX_HALF)
2201 setting = SUPPORTED_100baseT_Half;
2207 if (ecmd->duplex == DUPLEX_FULL)
2208 setting = SUPPORTED_10baseT_Full;
2209 else if (ecmd->duplex == DUPLEX_HALF)
2210 setting = SUPPORTED_10baseT_Half;
2218 if ((setting & supported) == 0)
2221 sky2->speed = ecmd->speed;
2222 sky2->duplex = ecmd->duplex;
2225 sky2->autoneg = ecmd->autoneg;
2226 sky2->advertising = ecmd->advertising;
2228 if (netif_running(dev)) {
2236 static void sky2_get_drvinfo(struct net_device *dev,
2237 struct ethtool_drvinfo *info)
2239 struct sky2_port *sky2 = netdev_priv(dev);
2241 strcpy(info->driver, DRV_NAME);
2242 strcpy(info->version, DRV_VERSION);
2243 strcpy(info->fw_version, "N/A");
2244 strcpy(info->bus_info, pci_name(sky2->hw->pdev));
2247 static const struct sky2_stat {
2248 char name[ETH_GSTRING_LEN];
2251 { "tx_bytes", GM_TXO_OK_HI },
2252 { "rx_bytes", GM_RXO_OK_HI },
2253 { "tx_broadcast", GM_TXF_BC_OK },
2254 { "rx_broadcast", GM_RXF_BC_OK },
2255 { "tx_multicast", GM_TXF_MC_OK },
2256 { "rx_multicast", GM_RXF_MC_OK },
2257 { "tx_unicast", GM_TXF_UC_OK },
2258 { "rx_unicast", GM_RXF_UC_OK },
2259 { "tx_mac_pause", GM_TXF_MPAUSE },
2260 { "rx_mac_pause", GM_RXF_MPAUSE },
2261 { "collisions", GM_TXF_SNG_COL },
2262 { "late_collision",GM_TXF_LAT_COL },
2263 { "aborted", GM_TXF_ABO_COL },
2264 { "multi_collisions", GM_TXF_MUL_COL },
2265 { "fifo_underrun", GM_TXE_FIFO_UR },
2266 { "fifo_overflow", GM_RXE_FIFO_OV },
2267 { "rx_toolong", GM_RXF_LNG_ERR },
2268 { "rx_jabber", GM_RXF_JAB_PKT },
2269 { "rx_runt", GM_RXE_FRAG },
2270 { "rx_too_long", GM_RXF_LNG_ERR },
2271 { "rx_fcs_error", GM_RXF_FCS_ERR },
2274 static u32 sky2_get_rx_csum(struct net_device *dev)
2276 struct sky2_port *sky2 = netdev_priv(dev);
2278 return sky2->rx_csum;
2281 static int sky2_set_rx_csum(struct net_device *dev, u32 data)
2283 struct sky2_port *sky2 = netdev_priv(dev);
2285 sky2->rx_csum = data;
2287 sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR),
2288 data ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
2293 static u32 sky2_get_msglevel(struct net_device *netdev)
2295 struct sky2_port *sky2 = netdev_priv(netdev);
2296 return sky2->msg_enable;
2299 static int sky2_nway_reset(struct net_device *dev)
2301 struct sky2_port *sky2 = netdev_priv(dev);
2302 struct sky2_hw *hw = sky2->hw;
2304 if (sky2->autoneg != AUTONEG_ENABLE)
2307 netif_stop_queue(dev);
2309 spin_lock_irq(&hw->phy_lock);
2310 sky2_phy_reset(hw, sky2->port);
2311 sky2_phy_init(hw, sky2->port);
2312 spin_unlock_irq(&hw->phy_lock);
2317 static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count)
2319 struct sky2_hw *hw = sky2->hw;
2320 unsigned port = sky2->port;
2323 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
2324 | (u64) gma_read32(hw, port, GM_TXO_OK_LO);
2325 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
2326 | (u64) gma_read32(hw, port, GM_RXO_OK_LO);
2328 for (i = 2; i < count; i++)
2329 data[i] = (u64) gma_read32(hw, port, sky2_stats[i].offset);
2332 static void sky2_set_msglevel(struct net_device *netdev, u32 value)
2334 struct sky2_port *sky2 = netdev_priv(netdev);
2335 sky2->msg_enable = value;
2338 static int sky2_get_stats_count(struct net_device *dev)
2340 return ARRAY_SIZE(sky2_stats);
2343 static void sky2_get_ethtool_stats(struct net_device *dev,
2344 struct ethtool_stats *stats, u64 * data)
2346 struct sky2_port *sky2 = netdev_priv(dev);
2348 sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats));
2351 static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data)
2355 switch (stringset) {
2357 for (i = 0; i < ARRAY_SIZE(sky2_stats); i++)
2358 memcpy(data + i * ETH_GSTRING_LEN,
2359 sky2_stats[i].name, ETH_GSTRING_LEN);
2364 /* Use hardware MIB variables for critical path statistics and
2365 * transmit feedback not reported at interrupt.
2366 * Other errors are accounted for in interrupt handler.
2368 static struct net_device_stats *sky2_get_stats(struct net_device *dev)
2370 struct sky2_port *sky2 = netdev_priv(dev);
2373 sky2_phy_stats(sky2, data, ARRAY_SIZE(data));
2375 sky2->net_stats.tx_bytes = data[0];
2376 sky2->net_stats.rx_bytes = data[1];
2377 sky2->net_stats.tx_packets = data[2] + data[4] + data[6];
2378 sky2->net_stats.rx_packets = data[3] + data[5] + data[7];
2379 sky2->net_stats.multicast = data[5] + data[7];
2380 sky2->net_stats.collisions = data[10];
2381 sky2->net_stats.tx_aborted_errors = data[12];
2383 return &sky2->net_stats;
2386 static int sky2_set_mac_address(struct net_device *dev, void *p)
2388 struct sky2_port *sky2 = netdev_priv(dev);
2389 struct sockaddr *addr = p;
2392 if (!is_valid_ether_addr(addr->sa_data))
2393 return -EADDRNOTAVAIL;
2396 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
2397 memcpy_toio(sky2->hw->regs + B2_MAC_1 + sky2->port * 8,
2398 dev->dev_addr, ETH_ALEN);
2399 memcpy_toio(sky2->hw->regs + B2_MAC_2 + sky2->port * 8,
2400 dev->dev_addr, ETH_ALEN);
2401 if (dev->flags & IFF_UP)
2406 static void sky2_set_multicast(struct net_device *dev)
2408 struct sky2_port *sky2 = netdev_priv(dev);
2409 struct sky2_hw *hw = sky2->hw;
2410 unsigned port = sky2->port;
2411 struct dev_mc_list *list = dev->mc_list;
2415 memset(filter, 0, sizeof(filter));
2417 reg = gma_read16(hw, port, GM_RX_CTRL);
2418 reg |= GM_RXCR_UCF_ENA;
2420 if (dev->flags & IFF_PROMISC) /* promiscuous */
2421 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
2422 else if ((dev->flags & IFF_ALLMULTI) || dev->mc_count > 16) /* all multicast */
2423 memset(filter, 0xff, sizeof(filter));
2424 else if (dev->mc_count == 0) /* no multicast */
2425 reg &= ~GM_RXCR_MCF_ENA;
2428 reg |= GM_RXCR_MCF_ENA;
2430 for (i = 0; list && i < dev->mc_count; i++, list = list->next) {
2431 u32 bit = ether_crc(ETH_ALEN, list->dmi_addr) & 0x3f;
2432 filter[bit / 8] |= 1 << (bit % 8);
2436 gma_write16(hw, port, GM_MC_ADDR_H1,
2437 (u16) filter[0] | ((u16) filter[1] << 8));
2438 gma_write16(hw, port, GM_MC_ADDR_H2,
2439 (u16) filter[2] | ((u16) filter[3] << 8));
2440 gma_write16(hw, port, GM_MC_ADDR_H3,
2441 (u16) filter[4] | ((u16) filter[5] << 8));
2442 gma_write16(hw, port, GM_MC_ADDR_H4,
2443 (u16) filter[6] | ((u16) filter[7] << 8));
2445 gma_write16(hw, port, GM_RX_CTRL, reg);
2448 /* Can have one global because blinking is controlled by
2449 * ethtool and that is always under RTNL mutex
2451 static inline void sky2_led(struct sky2_hw *hw, unsigned port, int on)
2455 spin_lock_bh(&hw->phy_lock);
2456 switch (hw->chip_id) {
2457 case CHIP_ID_YUKON_XL:
2458 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
2459 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
2460 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
2461 on ? (PHY_M_LEDC_LOS_CTRL(1) |
2462 PHY_M_LEDC_INIT_CTRL(7) |
2463 PHY_M_LEDC_STA1_CTRL(7) |
2464 PHY_M_LEDC_STA0_CTRL(7))
2467 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
2471 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
2472 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
2473 on ? PHY_M_LED_MO_DUP(MO_LED_ON) |
2474 PHY_M_LED_MO_10(MO_LED_ON) |
2475 PHY_M_LED_MO_100(MO_LED_ON) |
2476 PHY_M_LED_MO_1000(MO_LED_ON) |
2477 PHY_M_LED_MO_RX(MO_LED_ON)
2478 : PHY_M_LED_MO_DUP(MO_LED_OFF) |
2479 PHY_M_LED_MO_10(MO_LED_OFF) |
2480 PHY_M_LED_MO_100(MO_LED_OFF) |
2481 PHY_M_LED_MO_1000(MO_LED_OFF) |
2482 PHY_M_LED_MO_RX(MO_LED_OFF));
2485 spin_unlock_bh(&hw->phy_lock);
2488 /* blink LED's for finding board */
2489 static int sky2_phys_id(struct net_device *dev, u32 data)
2491 struct sky2_port *sky2 = netdev_priv(dev);
2492 struct sky2_hw *hw = sky2->hw;
2493 unsigned port = sky2->port;
2494 u16 ledctrl, ledover = 0;
2498 if (!data || data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ))
2499 ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT);
2503 /* save initial values */
2504 spin_lock_bh(&hw->phy_lock);
2505 if (hw->chip_id == CHIP_ID_YUKON_XL) {
2506 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
2507 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
2508 ledctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
2509 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
2511 ledctrl = gm_phy_read(hw, port, PHY_MARV_LED_CTRL);
2512 ledover = gm_phy_read(hw, port, PHY_MARV_LED_OVER);
2514 spin_unlock_bh(&hw->phy_lock);
2517 sky2_led(hw, port, onoff);
2520 if (msleep_interruptible(250))
2521 break; /* interrupted */
2525 /* resume regularly scheduled programming */
2526 spin_lock_bh(&hw->phy_lock);
2527 if (hw->chip_id == CHIP_ID_YUKON_XL) {
2528 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
2529 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
2530 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ledctrl);
2531 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
2533 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
2534 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
2536 spin_unlock_bh(&hw->phy_lock);
2541 static void sky2_get_pauseparam(struct net_device *dev,
2542 struct ethtool_pauseparam *ecmd)
2544 struct sky2_port *sky2 = netdev_priv(dev);
2546 ecmd->tx_pause = sky2->tx_pause;
2547 ecmd->rx_pause = sky2->rx_pause;
2548 ecmd->autoneg = sky2->autoneg;
2551 static int sky2_set_pauseparam(struct net_device *dev,
2552 struct ethtool_pauseparam *ecmd)
2554 struct sky2_port *sky2 = netdev_priv(dev);
2557 sky2->autoneg = ecmd->autoneg;
2558 sky2->tx_pause = ecmd->tx_pause != 0;
2559 sky2->rx_pause = ecmd->rx_pause != 0;
2561 if (netif_running(dev)) {
2570 static void sky2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2572 struct sky2_port *sky2 = netdev_priv(dev);
2574 wol->supported = WAKE_MAGIC;
2575 wol->wolopts = sky2->wol ? WAKE_MAGIC : 0;
2578 static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2580 struct sky2_port *sky2 = netdev_priv(dev);
2581 struct sky2_hw *hw = sky2->hw;
2583 if (wol->wolopts != WAKE_MAGIC && wol->wolopts != 0)
2586 sky2->wol = wol->wolopts == WAKE_MAGIC;
2589 memcpy_toio(hw->regs + WOL_MAC_ADDR, dev->dev_addr, ETH_ALEN);
2591 sky2_write16(hw, WOL_CTRL_STAT,
2592 WOL_CTL_ENA_PME_ON_MAGIC_PKT |
2593 WOL_CTL_ENA_MAGIC_PKT_UNIT);
2595 sky2_write16(hw, WOL_CTRL_STAT, WOL_CTL_DEFAULT);
2601 static void sky2_get_ringparam(struct net_device *dev,
2602 struct ethtool_ringparam *ering)
2604 struct sky2_port *sky2 = netdev_priv(dev);
2606 ering->rx_max_pending = RX_MAX_PENDING;
2607 ering->rx_mini_max_pending = 0;
2608 ering->rx_jumbo_max_pending = 0;
2609 ering->tx_max_pending = TX_RING_SIZE - 1;
2611 ering->rx_pending = sky2->rx_pending;
2612 ering->rx_mini_pending = 0;
2613 ering->rx_jumbo_pending = 0;
2614 ering->tx_pending = sky2->tx_pending;
2617 static int sky2_set_ringparam(struct net_device *dev,
2618 struct ethtool_ringparam *ering)
2620 struct sky2_port *sky2 = netdev_priv(dev);
2623 if (ering->rx_pending > RX_MAX_PENDING ||
2624 ering->rx_pending < 8 ||
2625 ering->tx_pending < MAX_SKB_TX_LE ||
2626 ering->tx_pending > TX_RING_SIZE - 1)
2629 if (netif_running(dev))
2632 sky2->rx_pending = ering->rx_pending;
2633 sky2->tx_pending = ering->tx_pending;
2635 if (netif_running(dev))
2641 static int sky2_get_regs_len(struct net_device *dev)
2647 * Returns copy of control register region
2648 * Note: access to the RAM address register set will cause timeouts.
2650 static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs,
2653 const struct sky2_port *sky2 = netdev_priv(dev);
2654 const void __iomem *io = sky2->hw->regs;
2656 BUG_ON(regs->len < B3_RI_WTO_R1);
2658 memset(p, 0, regs->len);
2660 memcpy_fromio(p, io, B3_RAM_ADDR);
2662 memcpy_fromio(p + B3_RI_WTO_R1,
2664 regs->len - B3_RI_WTO_R1);
2667 static struct ethtool_ops sky2_ethtool_ops = {
2668 .get_settings = sky2_get_settings,
2669 .set_settings = sky2_set_settings,
2670 .get_drvinfo = sky2_get_drvinfo,
2671 .get_msglevel = sky2_get_msglevel,
2672 .set_msglevel = sky2_set_msglevel,
2673 .nway_reset = sky2_nway_reset,
2674 .get_regs_len = sky2_get_regs_len,
2675 .get_regs = sky2_get_regs,
2676 .get_link = ethtool_op_get_link,
2677 .get_sg = ethtool_op_get_sg,
2678 .set_sg = ethtool_op_set_sg,
2679 .get_tx_csum = ethtool_op_get_tx_csum,
2680 .set_tx_csum = ethtool_op_set_tx_csum,
2681 .get_tso = ethtool_op_get_tso,
2682 .set_tso = ethtool_op_set_tso,
2683 .get_rx_csum = sky2_get_rx_csum,
2684 .set_rx_csum = sky2_set_rx_csum,
2685 .get_strings = sky2_get_strings,
2686 .get_ringparam = sky2_get_ringparam,
2687 .set_ringparam = sky2_set_ringparam,
2688 .get_pauseparam = sky2_get_pauseparam,
2689 .set_pauseparam = sky2_set_pauseparam,
2691 .get_wol = sky2_get_wol,
2692 .set_wol = sky2_set_wol,
2694 .phys_id = sky2_phys_id,
2695 .get_stats_count = sky2_get_stats_count,
2696 .get_ethtool_stats = sky2_get_ethtool_stats,
2697 .get_perm_addr = ethtool_op_get_perm_addr,
2700 /* Initialize network device */
2701 static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
2702 unsigned port, int highmem)
2704 struct sky2_port *sky2;
2705 struct net_device *dev = alloc_etherdev(sizeof(*sky2));
2708 printk(KERN_ERR "sky2 etherdev alloc failed");
2712 SET_MODULE_OWNER(dev);
2713 SET_NETDEV_DEV(dev, &hw->pdev->dev);
2714 dev->open = sky2_up;
2715 dev->stop = sky2_down;
2716 dev->hard_start_xmit = sky2_xmit_frame;
2717 dev->get_stats = sky2_get_stats;
2718 dev->set_multicast_list = sky2_set_multicast;
2719 dev->set_mac_address = sky2_set_mac_address;
2720 dev->change_mtu = sky2_change_mtu;
2721 SET_ETHTOOL_OPS(dev, &sky2_ethtool_ops);
2722 dev->tx_timeout = sky2_tx_timeout;
2723 dev->watchdog_timeo = TX_WATCHDOG;
2725 dev->poll = sky2_poll;
2726 dev->weight = NAPI_WEIGHT;
2727 #ifdef CONFIG_NET_POLL_CONTROLLER
2728 dev->poll_controller = sky2_netpoll;
2731 sky2 = netdev_priv(dev);
2734 sky2->msg_enable = netif_msg_init(debug, default_msg);
2736 spin_lock_init(&sky2->tx_lock);
2737 /* Auto speed and flow control */
2738 sky2->autoneg = AUTONEG_ENABLE;
2743 sky2->advertising = sky2_supported_modes(hw);
2745 tasklet_init(&sky2->phy_task, sky2_phy_task, (unsigned long)sky2);
2746 sky2->tx_pending = TX_DEF_PENDING;
2747 sky2->rx_pending = is_ec_a1(hw) ? 8 : RX_DEF_PENDING;
2749 hw->dev[port] = dev;
2753 dev->features |= NETIF_F_LLTX | NETIF_F_TSO;
2755 dev->features |= NETIF_F_HIGHDMA;
2756 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
2758 #ifdef SKY2_VLAN_TAG_USED
2759 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
2760 dev->vlan_rx_register = sky2_vlan_rx_register;
2761 dev->vlan_rx_kill_vid = sky2_vlan_rx_kill_vid;
2764 /* read the mac address */
2765 memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN);
2766 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
2768 /* device is off until link detection */
2769 netif_carrier_off(dev);
2770 netif_stop_queue(dev);
2775 static inline void sky2_show_addr(struct net_device *dev)
2777 const struct sky2_port *sky2 = netdev_priv(dev);
2779 if (netif_msg_probe(sky2))
2780 printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
2782 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
2783 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
2786 static int __devinit sky2_probe(struct pci_dev *pdev,
2787 const struct pci_device_id *ent)
2789 struct net_device *dev, *dev1 = NULL;
2791 int err, pm_cap, using_dac = 0;
2793 err = pci_enable_device(pdev);
2795 printk(KERN_ERR PFX "%s cannot enable PCI device\n",
2800 err = pci_request_regions(pdev, DRV_NAME);
2802 printk(KERN_ERR PFX "%s cannot obtain PCI resources\n",
2807 pci_set_master(pdev);
2809 /* Find power-management capability. */
2810 pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
2812 printk(KERN_ERR PFX "Cannot find PowerManagement capability, "
2815 goto err_out_free_regions;
2818 if (sizeof(dma_addr_t) > sizeof(u32)) {
2819 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
2825 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
2827 printk(KERN_ERR PFX "%s no usable DMA configuration\n",
2829 goto err_out_free_regions;
2833 /* byte swap descriptors in hardware */
2837 pci_read_config_dword(pdev, PCI_DEV_REG2, ®);
2838 reg |= PCI_REV_DESC;
2839 pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
2844 hw = kmalloc(sizeof(*hw), GFP_KERNEL);
2846 printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n",
2848 goto err_out_free_regions;
2851 memset(hw, 0, sizeof(*hw));
2853 spin_lock_init(&hw->phy_lock);
2855 hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
2857 printk(KERN_ERR PFX "%s: cannot map device registers\n",
2859 goto err_out_free_hw;
2861 hw->pm_cap = pm_cap;
2863 err = sky2_reset(hw);
2865 goto err_out_iounmap;
2867 printk(KERN_INFO PFX "addr 0x%lx irq %d Yukon-%s (0x%x) rev %d\n",
2868 pci_resource_start(pdev, 0), pdev->irq,
2869 yukon_name[hw->chip_id - CHIP_ID_YUKON],
2870 hw->chip_id, hw->chip_rev);
2872 dev = sky2_init_netdev(hw, 0, using_dac);
2874 goto err_out_free_pci;
2876 err = register_netdev(dev);
2878 printk(KERN_ERR PFX "%s: cannot register net device\n",
2880 goto err_out_free_netdev;
2883 sky2_show_addr(dev);
2885 if (hw->ports > 1 && (dev1 = sky2_init_netdev(hw, 1, using_dac))) {
2886 if (register_netdev(dev1) == 0)
2887 sky2_show_addr(dev1);
2889 /* Failure to register second port need not be fatal */
2890 printk(KERN_WARNING PFX
2891 "register of second port failed\n");
2897 err = request_irq(pdev->irq, sky2_intr, SA_SHIRQ, DRV_NAME, hw);
2899 printk(KERN_ERR PFX "%s: cannot assign irq %d\n",
2900 pci_name(pdev), pdev->irq);
2901 goto err_out_unregister;
2904 hw->intr_mask = Y2_IS_BASE;
2905 sky2_write32(hw, B0_IMSK, hw->intr_mask);
2907 pci_set_drvdata(pdev, hw);
2913 unregister_netdev(dev1);
2916 unregister_netdev(dev);
2917 err_out_free_netdev:
2920 sky2_write8(hw, B0_CTST, CS_RST_SET);
2921 pci_free_consistent(hw->pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
2926 err_out_free_regions:
2927 pci_release_regions(pdev);
2928 pci_disable_device(pdev);
2933 static void __devexit sky2_remove(struct pci_dev *pdev)
2935 struct sky2_hw *hw = pci_get_drvdata(pdev);
2936 struct net_device *dev0, *dev1;
2944 unregister_netdev(dev1);
2945 unregister_netdev(dev0);
2947 sky2_write32(hw, B0_IMSK, 0);
2948 sky2_set_power_state(hw, PCI_D3hot);
2949 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
2950 sky2_write8(hw, B0_CTST, CS_RST_SET);
2951 sky2_read8(hw, B0_CTST);
2953 free_irq(pdev->irq, hw);
2954 pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
2955 pci_release_regions(pdev);
2956 pci_disable_device(pdev);
2964 pci_set_drvdata(pdev, NULL);
2968 static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
2970 struct sky2_hw *hw = pci_get_drvdata(pdev);
2973 for (i = 0; i < 2; i++) {
2974 struct net_device *dev = hw->dev[i];
2977 if (!netif_running(dev))
2981 netif_device_detach(dev);
2985 return sky2_set_power_state(hw, pci_choose_state(pdev, state));
2988 static int sky2_resume(struct pci_dev *pdev)
2990 struct sky2_hw *hw = pci_get_drvdata(pdev);
2993 pci_restore_state(pdev);
2994 pci_enable_wake(pdev, PCI_D0, 0);
2995 sky2_set_power_state(hw, PCI_D0);
2999 for (i = 0; i < 2; i++) {
3000 struct net_device *dev = hw->dev[i];
3002 if (netif_running(dev)) {
3003 netif_device_attach(dev);
3012 static struct pci_driver sky2_driver = {
3014 .id_table = sky2_id_table,
3015 .probe = sky2_probe,
3016 .remove = __devexit_p(sky2_remove),
3018 .suspend = sky2_suspend,
3019 .resume = sky2_resume,
3023 static int __init sky2_init_module(void)
3025 return pci_module_init(&sky2_driver);
3028 static void __exit sky2_cleanup_module(void)
3030 pci_unregister_driver(&sky2_driver);
3033 module_init(sky2_init_module);
3034 module_exit(sky2_cleanup_module);
3036 MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver");
3037 MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>");
3038 MODULE_LICENSE("GPL");