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.
26 #include <linux/crc32.h>
27 #include <linux/kernel.h>
28 #include <linux/version.h>
29 #include <linux/module.h>
30 #include <linux/netdevice.h>
31 #include <linux/dma-mapping.h>
32 #include <linux/etherdevice.h>
33 #include <linux/ethtool.h>
34 #include <linux/pci.h>
36 #include <linux/tcp.h>
38 #include <linux/delay.h>
39 #include <linux/workqueue.h>
40 #include <linux/if_vlan.h>
41 #include <linux/prefetch.h>
42 #include <linux/mii.h>
46 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
47 #define SKY2_VLAN_TAG_USED 1
52 #define DRV_NAME "sky2"
53 #define DRV_VERSION "1.6"
54 #define PFX DRV_NAME " "
57 * The Yukon II chipset takes 64 bit command blocks (called list elements)
58 * that are organized into three (receive, transmit, status) different rings
59 * similar to Tigon3. A transmit can require several elements;
60 * a receive requires one (or two if using 64 bit dma).
63 #define RX_LE_SIZE 512
64 #define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le))
65 #define RX_MAX_PENDING (RX_LE_SIZE/2 - 2)
66 #define RX_DEF_PENDING RX_MAX_PENDING
67 #define RX_SKB_ALIGN 8
68 #define RX_BUF_WRITE 16
70 #define TX_RING_SIZE 512
71 #define TX_DEF_PENDING (TX_RING_SIZE - 1)
72 #define TX_MIN_PENDING 64
73 #define MAX_SKB_TX_LE (4 + (sizeof(dma_addr_t)/sizeof(u32))*MAX_SKB_FRAGS)
75 #define STATUS_RING_SIZE 2048 /* 2 ports * (TX + 2*RX) */
76 #define STATUS_LE_BYTES (STATUS_RING_SIZE*sizeof(struct sky2_status_le))
77 #define ETH_JUMBO_MTU 9000
78 #define TX_WATCHDOG (5 * HZ)
79 #define NAPI_WEIGHT 64
80 #define PHY_RETRIES 1000
82 #define RING_NEXT(x,s) (((x)+1) & ((s)-1))
84 static const u32 default_msg =
85 NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
86 | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
87 | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
89 static int debug = -1; /* defaults above */
90 module_param(debug, int, 0);
91 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
93 static int copybreak __read_mostly = 256;
94 module_param(copybreak, int, 0);
95 MODULE_PARM_DESC(copybreak, "Receive copy threshold");
97 static int disable_msi = 0;
98 module_param(disable_msi, int, 0);
99 MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
101 static int idle_timeout = 100;
102 module_param(idle_timeout, int, 0);
103 MODULE_PARM_DESC(idle_timeout, "Idle timeout workaround for lost interrupts (ms)");
105 static const struct pci_device_id sky2_id_table[] = {
106 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) },
107 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) },
108 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) }, /* DGE-560T */
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, 0x4352) },
120 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) },
121 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) },
122 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) },
123 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) },
124 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4364) },
125 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4365) },
126 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4366) },
127 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4367) },
128 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) },
132 MODULE_DEVICE_TABLE(pci, sky2_id_table);
134 /* Avoid conditionals by using array */
135 static const unsigned txqaddr[] = { Q_XA1, Q_XA2 };
136 static const unsigned rxqaddr[] = { Q_R1, Q_R2 };
137 static const u32 portirq_msk[] = { Y2_IS_PORT_1, Y2_IS_PORT_2 };
139 /* This driver supports yukon2 chipset only */
140 static const char *yukon2_name[] = {
142 "EC Ultra", /* 0xb4 */
143 "UNKNOWN", /* 0xb5 */
148 /* Access to external PHY */
149 static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val)
153 gma_write16(hw, port, GM_SMI_DATA, val);
154 gma_write16(hw, port, GM_SMI_CTRL,
155 GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) | GM_SMI_CT_REG_AD(reg));
157 for (i = 0; i < PHY_RETRIES; i++) {
158 if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
163 printk(KERN_WARNING PFX "%s: phy write timeout\n", hw->dev[port]->name);
167 static int __gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg, u16 *val)
171 gma_write16(hw, port, GM_SMI_CTRL, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV)
172 | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
174 for (i = 0; i < PHY_RETRIES; i++) {
175 if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) {
176 *val = gma_read16(hw, port, GM_SMI_DATA);
186 static u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg)
190 if (__gm_phy_read(hw, port, reg, &v) != 0)
191 printk(KERN_WARNING PFX "%s: phy read timeout\n", hw->dev[port]->name);
195 static void sky2_set_power_state(struct sky2_hw *hw, pci_power_t state)
201 pr_debug("sky2_set_power_state %d\n", state);
202 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
204 power_control = sky2_pci_read16(hw, hw->pm_cap + PCI_PM_PMC);
205 vaux = (sky2_read16(hw, B0_CTST) & Y2_VAUX_AVAIL) &&
206 (power_control & PCI_PM_CAP_PME_D3cold);
208 power_control = sky2_pci_read16(hw, hw->pm_cap + PCI_PM_CTRL);
210 power_control |= PCI_PM_CTRL_PME_STATUS;
211 power_control &= ~(PCI_PM_CTRL_STATE_MASK);
215 /* switch power to VCC (WA for VAUX problem) */
216 sky2_write8(hw, B0_POWER_CTRL,
217 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
219 /* disable Core Clock Division, */
220 sky2_write32(hw, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS);
222 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
223 /* enable bits are inverted */
224 sky2_write8(hw, B2_Y2_CLK_GATE,
225 Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
226 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
227 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
229 sky2_write8(hw, B2_Y2_CLK_GATE, 0);
231 /* Turn off phy power saving */
232 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
233 reg1 &= ~(PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD);
235 /* looks like this XL is back asswards .. */
236 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) {
237 reg1 |= PCI_Y2_PHY1_COMA;
239 reg1 |= PCI_Y2_PHY2_COMA;
241 sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
244 if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
245 sky2_pci_write32(hw, PCI_DEV_REG3, 0);
246 reg1 = sky2_pci_read32(hw, PCI_DEV_REG4);
247 reg1 &= P_ASPM_CONTROL_MSK;
248 sky2_pci_write32(hw, PCI_DEV_REG4, reg1);
249 sky2_pci_write32(hw, PCI_DEV_REG5, 0);
256 /* Turn on phy power saving */
257 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
258 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
259 reg1 &= ~(PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD);
261 reg1 |= (PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD);
262 sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
265 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
266 sky2_write8(hw, B2_Y2_CLK_GATE, 0);
268 /* enable bits are inverted */
269 sky2_write8(hw, B2_Y2_CLK_GATE,
270 Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
271 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
272 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
274 /* switch power to VAUX */
275 if (vaux && state != PCI_D3cold)
276 sky2_write8(hw, B0_POWER_CTRL,
277 (PC_VAUX_ENA | PC_VCC_ENA |
278 PC_VAUX_ON | PC_VCC_OFF));
281 printk(KERN_ERR PFX "Unknown power state %d\n", state);
284 sky2_pci_write16(hw, hw->pm_cap + PCI_PM_CTRL, power_control);
285 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
288 static void sky2_phy_reset(struct sky2_hw *hw, unsigned port)
292 /* disable all GMAC IRQ's */
293 sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
294 /* disable PHY IRQs */
295 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
297 gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
298 gma_write16(hw, port, GM_MC_ADDR_H2, 0);
299 gma_write16(hw, port, GM_MC_ADDR_H3, 0);
300 gma_write16(hw, port, GM_MC_ADDR_H4, 0);
302 reg = gma_read16(hw, port, GM_RX_CTRL);
303 reg |= GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA;
304 gma_write16(hw, port, GM_RX_CTRL, reg);
307 static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
309 struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
310 u16 ctrl, ct1000, adv, pg, ledctrl, ledover;
312 if (sky2->autoneg == AUTONEG_ENABLE &&
313 !(hw->chip_id == CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U)) {
314 u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
316 ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
318 ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
320 if (hw->chip_id == CHIP_ID_YUKON_EC)
321 ectrl |= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA;
323 ectrl |= PHY_M_EC_M_DSC(2) | PHY_M_EC_S_DSC(3);
325 gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
328 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
330 if (hw->chip_id == CHIP_ID_YUKON_FE) {
331 /* enable automatic crossover */
332 ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1;
334 /* disable energy detect */
335 ctrl &= ~PHY_M_PC_EN_DET_MSK;
337 /* enable automatic crossover */
338 ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO);
340 if (sky2->autoneg == AUTONEG_ENABLE &&
341 (hw->chip_id == CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U)) {
342 ctrl &= ~PHY_M_PC_DSC_MSK;
343 ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA;
346 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
348 /* workaround for deviation #4.88 (CRC errors) */
349 /* disable Automatic Crossover */
351 ctrl &= ~PHY_M_PC_MDIX_MSK;
352 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
354 if (hw->chip_id == CHIP_ID_YUKON_XL) {
355 /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */
356 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
357 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
358 ctrl &= ~PHY_M_MAC_MD_MSK;
359 ctrl |= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX);
360 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
362 /* select page 1 to access Fiber registers */
363 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 1);
367 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
368 if (sky2->autoneg == AUTONEG_DISABLE)
373 ctrl |= PHY_CT_RESET;
374 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
380 if (sky2->autoneg == AUTONEG_ENABLE) {
382 if (sky2->advertising & ADVERTISED_1000baseT_Full)
383 ct1000 |= PHY_M_1000C_AFD;
384 if (sky2->advertising & ADVERTISED_1000baseT_Half)
385 ct1000 |= PHY_M_1000C_AHD;
386 if (sky2->advertising & ADVERTISED_100baseT_Full)
387 adv |= PHY_M_AN_100_FD;
388 if (sky2->advertising & ADVERTISED_100baseT_Half)
389 adv |= PHY_M_AN_100_HD;
390 if (sky2->advertising & ADVERTISED_10baseT_Full)
391 adv |= PHY_M_AN_10_FD;
392 if (sky2->advertising & ADVERTISED_10baseT_Half)
393 adv |= PHY_M_AN_10_HD;
394 } else /* special defines for FIBER (88E1011S only) */
395 adv |= PHY_M_AN_1000X_AHD | PHY_M_AN_1000X_AFD;
397 /* Set Flow-control capabilities */
398 if (sky2->tx_pause && sky2->rx_pause)
399 adv |= PHY_AN_PAUSE_CAP; /* symmetric */
400 else if (sky2->rx_pause && !sky2->tx_pause)
401 adv |= PHY_AN_PAUSE_ASYM | PHY_AN_PAUSE_CAP;
402 else if (!sky2->rx_pause && sky2->tx_pause)
403 adv |= PHY_AN_PAUSE_ASYM; /* local */
405 /* Restart Auto-negotiation */
406 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
408 /* forced speed/duplex settings */
409 ct1000 = PHY_M_1000C_MSE;
411 if (sky2->duplex == DUPLEX_FULL)
412 ctrl |= PHY_CT_DUP_MD;
414 switch (sky2->speed) {
416 ctrl |= PHY_CT_SP1000;
419 ctrl |= PHY_CT_SP100;
423 ctrl |= PHY_CT_RESET;
426 if (hw->chip_id != CHIP_ID_YUKON_FE)
427 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
429 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
430 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
432 /* Setup Phy LED's */
433 ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS);
436 switch (hw->chip_id) {
437 case CHIP_ID_YUKON_FE:
438 /* on 88E3082 these bits are at 11..9 (shifted left) */
439 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1;
441 ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR);
443 /* delete ACT LED control bits */
444 ctrl &= ~PHY_M_FELP_LED1_MSK;
445 /* change ACT LED control to blink mode */
446 ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL);
447 gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
450 case CHIP_ID_YUKON_XL:
451 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
453 /* select page 3 to access LED control register */
454 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
456 /* set LED Function Control register */
457 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
458 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
459 PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */
460 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
461 PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */
463 /* set Polarity Control register */
464 gm_phy_write(hw, port, PHY_MARV_PHY_STAT,
465 (PHY_M_POLC_LS1_P_MIX(4) |
466 PHY_M_POLC_IS0_P_MIX(4) |
467 PHY_M_POLC_LOS_CTRL(2) |
468 PHY_M_POLC_INIT_CTRL(2) |
469 PHY_M_POLC_STA1_CTRL(2) |
470 PHY_M_POLC_STA0_CTRL(2)));
472 /* restore page register */
473 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
475 case CHIP_ID_YUKON_EC_U:
476 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
478 /* select page 3 to access LED control register */
479 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
481 /* set LED Function Control register */
482 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
483 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
484 PHY_M_LEDC_INIT_CTRL(8) | /* 10 Mbps */
485 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
486 PHY_M_LEDC_STA0_CTRL(7)));/* 1000 Mbps */
488 /* set Blink Rate in LED Timer Control Register */
489 gm_phy_write(hw, port, PHY_MARV_INT_MASK,
490 ledctrl | PHY_M_LED_BLINK_RT(BLINK_84MS));
491 /* restore page register */
492 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
496 /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
497 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
498 /* turn off the Rx LED (LED_RX) */
499 ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
502 if (hw->chip_id == CHIP_ID_YUKON_EC_U && hw->chip_rev == CHIP_REV_YU_EC_A1) {
503 /* apply fixes in PHY AFE */
504 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
505 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 255);
507 /* increase differential signal amplitude in 10BASE-T */
508 gm_phy_write(hw, port, 0x18, 0xaa99);
509 gm_phy_write(hw, port, 0x17, 0x2011);
511 /* fix for IEEE A/B Symmetry failure in 1000BASE-T */
512 gm_phy_write(hw, port, 0x18, 0xa204);
513 gm_phy_write(hw, port, 0x17, 0x2002);
515 /* set page register to 0 */
516 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
518 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
520 if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) {
521 /* turn on 100 Mbps LED (LED_LINK100) */
522 ledover |= PHY_M_LED_MO_100(MO_LED_ON);
526 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
529 /* Enable phy interrupt on auto-negotiation complete (or link up) */
530 if (sky2->autoneg == AUTONEG_ENABLE)
531 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL);
533 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
536 /* Force a renegotiation */
537 static void sky2_phy_reinit(struct sky2_port *sky2)
539 spin_lock_bh(&sky2->phy_lock);
540 sky2_phy_init(sky2->hw, sky2->port);
541 spin_unlock_bh(&sky2->phy_lock);
544 static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
546 struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
549 const u8 *addr = hw->dev[port]->dev_addr;
551 sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
552 sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR|GPC_ENA_PAUSE);
554 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
556 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 && port == 1) {
557 /* WA DEV_472 -- looks like crossed wires on port 2 */
558 /* clear GMAC 1 Control reset */
559 sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR);
561 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET);
562 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR);
563 } while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL ||
564 gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 ||
565 gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0);
568 if (sky2->autoneg == AUTONEG_DISABLE) {
569 reg = gma_read16(hw, port, GM_GP_CTRL);
570 reg |= GM_GPCR_AU_ALL_DIS;
571 gma_write16(hw, port, GM_GP_CTRL, reg);
572 gma_read16(hw, port, GM_GP_CTRL);
574 switch (sky2->speed) {
576 reg &= ~GM_GPCR_SPEED_100;
577 reg |= GM_GPCR_SPEED_1000;
580 reg &= ~GM_GPCR_SPEED_1000;
581 reg |= GM_GPCR_SPEED_100;
584 reg &= ~(GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100);
588 if (sky2->duplex == DUPLEX_FULL)
589 reg |= GM_GPCR_DUP_FULL;
591 /* turn off pause in 10/100mbps half duplex */
592 else if (sky2->speed != SPEED_1000 &&
593 hw->chip_id != CHIP_ID_YUKON_EC_U)
594 sky2->tx_pause = sky2->rx_pause = 0;
596 reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
598 if (!sky2->tx_pause && !sky2->rx_pause) {
599 sky2_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
601 GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
602 } else if (sky2->tx_pause && !sky2->rx_pause) {
603 /* disable Rx flow-control */
604 reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
607 gma_write16(hw, port, GM_GP_CTRL, reg);
609 sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
611 spin_lock_bh(&sky2->phy_lock);
612 sky2_phy_init(hw, port);
613 spin_unlock_bh(&sky2->phy_lock);
616 reg = gma_read16(hw, port, GM_PHY_ADDR);
617 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
619 for (i = GM_MIB_CNT_BASE; i <= GM_MIB_CNT_END; i += 4)
620 gma_read16(hw, port, i);
621 gma_write16(hw, port, GM_PHY_ADDR, reg);
623 /* transmit control */
624 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
626 /* receive control reg: unicast + multicast + no FCS */
627 gma_write16(hw, port, GM_RX_CTRL,
628 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
630 /* transmit flow control */
631 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
633 /* transmit parameter */
634 gma_write16(hw, port, GM_TX_PARAM,
635 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
636 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
637 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) |
638 TX_BACK_OFF_LIM(TX_BOF_LIM_DEF));
640 /* serial mode register */
641 reg = DATA_BLIND_VAL(DATA_BLIND_DEF) |
642 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
644 if (hw->dev[port]->mtu > ETH_DATA_LEN)
645 reg |= GM_SMOD_JUMBO_ENA;
647 gma_write16(hw, port, GM_SERIAL_MODE, reg);
649 /* virtual address for data */
650 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
652 /* physical address: used for pause frames */
653 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
655 /* ignore counter overflows */
656 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
657 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
658 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
660 /* Configure Rx MAC FIFO */
661 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
662 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
663 GMF_OPER_ON | GMF_RX_F_FL_ON);
665 /* Flush Rx MAC FIFO on any flow control or error */
666 sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);
668 /* Set threshold to 0xa (64 bytes)
669 * ASF disabled so no need to do WA dev #4.30
671 sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF);
673 /* Configure Tx MAC FIFO */
674 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
675 sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
677 if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
678 sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8);
679 sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8);
680 if (hw->dev[port]->mtu > ETH_DATA_LEN) {
681 /* set Tx GMAC FIFO Almost Empty Threshold */
682 sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR), 0x180);
683 /* Disable Store & Forward mode for TX */
684 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_DIS);
690 /* Assign Ram Buffer allocation.
691 * start and end are in units of 4k bytes
692 * ram registers are in units of 64bit words
694 static void sky2_ramset(struct sky2_hw *hw, u16 q, u8 startk, u8 endk)
698 start = startk * 4096/8;
699 end = (endk * 4096/8) - 1;
701 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
702 sky2_write32(hw, RB_ADDR(q, RB_START), start);
703 sky2_write32(hw, RB_ADDR(q, RB_END), end);
704 sky2_write32(hw, RB_ADDR(q, RB_WP), start);
705 sky2_write32(hw, RB_ADDR(q, RB_RP), start);
707 if (q == Q_R1 || q == Q_R2) {
708 u32 space = (endk - startk) * 4096/8;
709 u32 tp = space - space/4;
711 /* On receive queue's set the thresholds
712 * give receiver priority when > 3/4 full
713 * send pause when down to 2K
715 sky2_write32(hw, RB_ADDR(q, RB_RX_UTHP), tp);
716 sky2_write32(hw, RB_ADDR(q, RB_RX_LTHP), space/2);
719 sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp);
720 sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4);
722 /* Enable store & forward on Tx queue's because
723 * Tx FIFO is only 1K on Yukon
725 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
728 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
729 sky2_read8(hw, RB_ADDR(q, RB_CTRL));
732 /* Setup Bus Memory Interface */
733 static void sky2_qset(struct sky2_hw *hw, u16 q)
735 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET);
736 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT);
737 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON);
738 sky2_write32(hw, Q_ADDR(q, Q_WM), BMU_WM_DEFAULT);
741 /* Setup prefetch unit registers. This is the interface between
742 * hardware and driver list elements
744 static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr,
747 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
748 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR);
749 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), addr >> 32);
750 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), (u32) addr);
751 sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last);
752 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON);
754 sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL));
757 static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2)
759 struct sky2_tx_le *le = sky2->tx_le + sky2->tx_prod;
761 sky2->tx_prod = RING_NEXT(sky2->tx_prod, TX_RING_SIZE);
765 /* Update chip's next pointer */
766 static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, u16 idx)
769 sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx);
774 static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2)
776 struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put;
777 sky2->rx_put = RING_NEXT(sky2->rx_put, RX_LE_SIZE);
781 /* Return high part of DMA address (could be 32 or 64 bit) */
782 static inline u32 high32(dma_addr_t a)
784 return sizeof(a) > sizeof(u32) ? (a >> 16) >> 16 : 0;
787 /* Build description to hardware about buffer */
788 static void sky2_rx_add(struct sky2_port *sky2, dma_addr_t map)
790 struct sky2_rx_le *le;
791 u32 hi = high32(map);
792 u16 len = sky2->rx_bufsize;
794 if (sky2->rx_addr64 != hi) {
795 le = sky2_next_rx(sky2);
796 le->addr = cpu_to_le32(hi);
798 le->opcode = OP_ADDR64 | HW_OWNER;
799 sky2->rx_addr64 = high32(map + len);
802 le = sky2_next_rx(sky2);
803 le->addr = cpu_to_le32((u32) map);
804 le->length = cpu_to_le16(len);
806 le->opcode = OP_PACKET | HW_OWNER;
810 /* Tell chip where to start receive checksum.
811 * Actually has two checksums, but set both same to avoid possible byte
814 static void rx_set_checksum(struct sky2_port *sky2)
816 struct sky2_rx_le *le;
818 le = sky2_next_rx(sky2);
819 le->addr = (ETH_HLEN << 16) | ETH_HLEN;
821 le->opcode = OP_TCPSTART | HW_OWNER;
823 sky2_write32(sky2->hw,
824 Q_ADDR(rxqaddr[sky2->port], Q_CSR),
825 sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
830 * The RX Stop command will not work for Yukon-2 if the BMU does not
831 * reach the end of packet and since we can't make sure that we have
832 * incoming data, we must reset the BMU while it is not doing a DMA
833 * transfer. Since it is possible that the RX path is still active,
834 * the RX RAM buffer will be stopped first, so any possible incoming
835 * data will not trigger a DMA. After the RAM buffer is stopped, the
836 * BMU is polled until any DMA in progress is ended and only then it
839 static void sky2_rx_stop(struct sky2_port *sky2)
841 struct sky2_hw *hw = sky2->hw;
842 unsigned rxq = rxqaddr[sky2->port];
845 /* disable the RAM Buffer receive queue */
846 sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD);
848 for (i = 0; i < 0xffff; i++)
849 if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL))
850 == sky2_read8(hw, RB_ADDR(rxq, Q_RL)))
853 printk(KERN_WARNING PFX "%s: receiver stop failed\n",
856 sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST);
858 /* reset the Rx prefetch unit */
859 sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
862 /* Clean out receive buffer area, assumes receiver hardware stopped */
863 static void sky2_rx_clean(struct sky2_port *sky2)
867 memset(sky2->rx_le, 0, RX_LE_BYTES);
868 for (i = 0; i < sky2->rx_pending; i++) {
869 struct ring_info *re = sky2->rx_ring + i;
872 pci_unmap_single(sky2->hw->pdev,
873 re->mapaddr, sky2->rx_bufsize,
881 /* Basic MII support */
882 static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
884 struct mii_ioctl_data *data = if_mii(ifr);
885 struct sky2_port *sky2 = netdev_priv(dev);
886 struct sky2_hw *hw = sky2->hw;
887 int err = -EOPNOTSUPP;
889 if (!netif_running(dev))
890 return -ENODEV; /* Phy still in reset */
894 data->phy_id = PHY_ADDR_MARV;
900 spin_lock_bh(&sky2->phy_lock);
901 err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val);
902 spin_unlock_bh(&sky2->phy_lock);
909 if (!capable(CAP_NET_ADMIN))
912 spin_lock_bh(&sky2->phy_lock);
913 err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f,
915 spin_unlock_bh(&sky2->phy_lock);
921 #ifdef SKY2_VLAN_TAG_USED
922 static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
924 struct sky2_port *sky2 = netdev_priv(dev);
925 struct sky2_hw *hw = sky2->hw;
926 u16 port = sky2->port;
928 spin_lock_bh(&sky2->tx_lock);
930 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_ON);
931 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_ON);
934 spin_unlock_bh(&sky2->tx_lock);
937 static void sky2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
939 struct sky2_port *sky2 = netdev_priv(dev);
940 struct sky2_hw *hw = sky2->hw;
941 u16 port = sky2->port;
943 spin_lock_bh(&sky2->tx_lock);
945 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_OFF);
946 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_OFF);
948 sky2->vlgrp->vlan_devices[vid] = NULL;
950 spin_unlock_bh(&sky2->tx_lock);
955 * It appears the hardware has a bug in the FIFO logic that
956 * cause it to hang if the FIFO gets overrun and the receive buffer
957 * is not 64 byte aligned. The buffer returned from netdev_alloc_skb is
958 * aligned except if slab debugging is enabled.
960 static inline struct sk_buff *sky2_alloc_skb(struct net_device *dev,
966 skb = __netdev_alloc_skb(dev, length + RX_SKB_ALIGN, gfp_mask);
968 unsigned long p = (unsigned long) skb->data;
969 skb_reserve(skb, ALIGN(p, RX_SKB_ALIGN) - p);
976 * Allocate and setup receiver buffer pool.
977 * In case of 64 bit dma, there are 2X as many list elements
978 * available as ring entries
979 * and need to reserve one list element so we don't wrap around.
981 static int sky2_rx_start(struct sky2_port *sky2)
983 struct sky2_hw *hw = sky2->hw;
984 unsigned rxq = rxqaddr[sky2->port];
988 sky2->rx_put = sky2->rx_next = 0;
991 if (hw->chip_id == CHIP_ID_YUKON_EC_U && hw->chip_rev >= 2) {
992 /* MAC Rx RAM Read is controlled by hardware */
993 sky2_write32(hw, Q_ADDR(rxq, Q_F), F_M_RX_RAM_DIS);
996 sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1);
998 rx_set_checksum(sky2);
999 for (i = 0; i < sky2->rx_pending; i++) {
1000 struct ring_info *re = sky2->rx_ring + i;
1002 re->skb = sky2_alloc_skb(sky2->netdev, sky2->rx_bufsize,
1007 re->mapaddr = pci_map_single(hw->pdev, re->skb->data,
1008 sky2->rx_bufsize, PCI_DMA_FROMDEVICE);
1009 sky2_rx_add(sky2, re->mapaddr);
1014 * The receiver hangs if it receives frames larger than the
1015 * packet buffer. As a workaround, truncate oversize frames, but
1016 * the register is limited to 9 bits, so if you do frames > 2052
1017 * you better get the MTU right!
1019 thresh = (sky2->rx_bufsize - 8) / sizeof(u32);
1021 sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_OFF);
1023 sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), thresh);
1024 sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON);
1028 /* Tell chip about available buffers */
1029 sky2_write16(hw, Y2_QADDR(rxq, PREF_UNIT_PUT_IDX), sky2->rx_put);
1032 sky2_rx_clean(sky2);
1036 /* Bring up network interface. */
1037 static int sky2_up(struct net_device *dev)
1039 struct sky2_port *sky2 = netdev_priv(dev);
1040 struct sky2_hw *hw = sky2->hw;
1041 unsigned port = sky2->port;
1042 u32 ramsize, rxspace, imask;
1043 int cap, err = -ENOMEM;
1044 struct net_device *otherdev = hw->dev[sky2->port^1];
1047 * On dual port PCI-X card, there is an problem where status
1048 * can be received out of order due to split transactions
1050 if (otherdev && netif_running(otherdev) &&
1051 (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) {
1052 struct sky2_port *osky2 = netdev_priv(otherdev);
1055 cmd = sky2_pci_read16(hw, cap + PCI_X_CMD);
1056 cmd &= ~PCI_X_CMD_MAX_SPLIT;
1057 sky2_pci_write16(hw, cap + PCI_X_CMD, cmd);
1063 if (netif_msg_ifup(sky2))
1064 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
1066 /* must be power of 2 */
1067 sky2->tx_le = pci_alloc_consistent(hw->pdev,
1069 sizeof(struct sky2_tx_le),
1074 sky2->tx_ring = kcalloc(TX_RING_SIZE, sizeof(struct tx_ring_info),
1078 sky2->tx_prod = sky2->tx_cons = 0;
1080 sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES,
1084 memset(sky2->rx_le, 0, RX_LE_BYTES);
1086 sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct ring_info),
1091 sky2_mac_init(hw, port);
1093 /* Determine available ram buffer space (in 4K blocks).
1094 * Note: not sure about the FE setting below yet
1096 if (hw->chip_id == CHIP_ID_YUKON_FE)
1099 ramsize = sky2_read8(hw, B2_E_0);
1101 /* Give transmitter one third (rounded up) */
1102 rxspace = ramsize - (ramsize + 2) / 3;
1104 sky2_ramset(hw, rxqaddr[port], 0, rxspace);
1105 sky2_ramset(hw, txqaddr[port], rxspace, ramsize);
1107 /* Make sure SyncQ is disabled */
1108 sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL),
1111 sky2_qset(hw, txqaddr[port]);
1113 /* Set almost empty threshold */
1114 if (hw->chip_id == CHIP_ID_YUKON_EC_U && hw->chip_rev == 1)
1115 sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), 0x1a0);
1117 sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map,
1120 err = sky2_rx_start(sky2);
1124 /* Enable interrupts from phy/mac for port */
1125 imask = sky2_read32(hw, B0_IMSK);
1126 imask |= portirq_msk[port];
1127 sky2_write32(hw, B0_IMSK, imask);
1133 pci_free_consistent(hw->pdev, RX_LE_BYTES,
1134 sky2->rx_le, sky2->rx_le_map);
1138 pci_free_consistent(hw->pdev,
1139 TX_RING_SIZE * sizeof(struct sky2_tx_le),
1140 sky2->tx_le, sky2->tx_le_map);
1143 kfree(sky2->tx_ring);
1144 kfree(sky2->rx_ring);
1146 sky2->tx_ring = NULL;
1147 sky2->rx_ring = NULL;
1151 /* Modular subtraction in ring */
1152 static inline int tx_dist(unsigned tail, unsigned head)
1154 return (head - tail) & (TX_RING_SIZE - 1);
1157 /* Number of list elements available for next tx */
1158 static inline int tx_avail(const struct sky2_port *sky2)
1160 return sky2->tx_pending - tx_dist(sky2->tx_cons, sky2->tx_prod);
1163 /* Estimate of number of transmit list elements required */
1164 static unsigned tx_le_req(const struct sk_buff *skb)
1168 count = sizeof(dma_addr_t) / sizeof(u32);
1169 count += skb_shinfo(skb)->nr_frags * count;
1171 if (skb_is_gso(skb))
1174 if (skb->ip_summed == CHECKSUM_HW)
1181 * Put one packet in ring for transmit.
1182 * A single packet can generate multiple list elements, and
1183 * the number of ring elements will probably be less than the number
1184 * of list elements used.
1186 * No BH disabling for tx_lock here (like tg3)
1188 static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
1190 struct sky2_port *sky2 = netdev_priv(dev);
1191 struct sky2_hw *hw = sky2->hw;
1192 struct sky2_tx_le *le = NULL;
1193 struct tx_ring_info *re;
1200 /* No BH disabling for tx_lock here. We are running in BH disabled
1201 * context and TX reclaim runs via poll inside of a software
1202 * interrupt, and no related locks in IRQ processing.
1204 if (!spin_trylock(&sky2->tx_lock))
1205 return NETDEV_TX_LOCKED;
1207 if (unlikely(tx_avail(sky2) < tx_le_req(skb))) {
1208 /* There is a known but harmless race with lockless tx
1209 * and netif_stop_queue.
1211 if (!netif_queue_stopped(dev)) {
1212 netif_stop_queue(dev);
1213 if (net_ratelimit())
1214 printk(KERN_WARNING PFX "%s: ring full when queue awake!\n",
1217 spin_unlock(&sky2->tx_lock);
1219 return NETDEV_TX_BUSY;
1222 if (unlikely(netif_msg_tx_queued(sky2)))
1223 printk(KERN_DEBUG "%s: tx queued, slot %u, len %d\n",
1224 dev->name, sky2->tx_prod, skb->len);
1226 len = skb_headlen(skb);
1227 mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
1228 addr64 = high32(mapping);
1230 re = sky2->tx_ring + sky2->tx_prod;
1232 /* Send high bits if changed or crosses boundary */
1233 if (addr64 != sky2->tx_addr64 || high32(mapping + len) != sky2->tx_addr64) {
1234 le = get_tx_le(sky2);
1235 le->tx.addr = cpu_to_le32(addr64);
1237 le->opcode = OP_ADDR64 | HW_OWNER;
1238 sky2->tx_addr64 = high32(mapping + len);
1241 /* Check for TCP Segmentation Offload */
1242 mss = skb_shinfo(skb)->gso_size;
1244 mss += ((skb->h.th->doff - 5) * 4); /* TCP options */
1245 mss += (skb->nh.iph->ihl * 4) + sizeof(struct tcphdr);
1248 if (mss != sky2->tx_last_mss) {
1249 le = get_tx_le(sky2);
1250 le->tx.tso.size = cpu_to_le16(mss);
1251 le->tx.tso.rsvd = 0;
1252 le->opcode = OP_LRGLEN | HW_OWNER;
1254 sky2->tx_last_mss = mss;
1259 #ifdef SKY2_VLAN_TAG_USED
1260 /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */
1261 if (sky2->vlgrp && vlan_tx_tag_present(skb)) {
1263 le = get_tx_le(sky2);
1265 le->opcode = OP_VLAN|HW_OWNER;
1268 le->opcode |= OP_VLAN;
1269 le->length = cpu_to_be16(vlan_tx_tag_get(skb));
1274 /* Handle TCP checksum offload */
1275 if (skb->ip_summed == CHECKSUM_HW) {
1276 u16 hdr = skb->h.raw - skb->data;
1277 u16 offset = hdr + skb->csum;
1279 ctrl = CALSUM | WR_SUM | INIT_SUM | LOCK_SUM;
1280 if (skb->nh.iph->protocol == IPPROTO_UDP)
1283 le = get_tx_le(sky2);
1284 le->tx.csum.start = cpu_to_le16(hdr);
1285 le->tx.csum.offset = cpu_to_le16(offset);
1286 le->length = 0; /* initial checksum value */
1287 le->ctrl = 1; /* one packet */
1288 le->opcode = OP_TCPLISW | HW_OWNER;
1291 le = get_tx_le(sky2);
1292 le->tx.addr = cpu_to_le32((u32) mapping);
1293 le->length = cpu_to_le16(len);
1295 le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER);
1297 /* Record the transmit mapping info */
1299 pci_unmap_addr_set(re, mapaddr, mapping);
1301 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
1302 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1303 struct tx_ring_info *fre;
1305 mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset,
1306 frag->size, PCI_DMA_TODEVICE);
1307 addr64 = high32(mapping);
1308 if (addr64 != sky2->tx_addr64) {
1309 le = get_tx_le(sky2);
1310 le->tx.addr = cpu_to_le32(addr64);
1312 le->opcode = OP_ADDR64 | HW_OWNER;
1313 sky2->tx_addr64 = addr64;
1316 le = get_tx_le(sky2);
1317 le->tx.addr = cpu_to_le32((u32) mapping);
1318 le->length = cpu_to_le16(frag->size);
1320 le->opcode = OP_BUFFER | HW_OWNER;
1323 + RING_NEXT((re - sky2->tx_ring) + i, TX_RING_SIZE);
1324 pci_unmap_addr_set(fre, mapaddr, mapping);
1327 re->idx = sky2->tx_prod;
1330 if (tx_avail(sky2) <= MAX_SKB_TX_LE)
1331 netif_stop_queue(dev);
1333 sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod);
1335 spin_unlock(&sky2->tx_lock);
1337 dev->trans_start = jiffies;
1338 return NETDEV_TX_OK;
1342 * Free ring elements from starting at tx_cons until "done"
1344 * NB: the hardware will tell us about partial completion of multi-part
1345 * buffers; these are deferred until completion.
1347 static void sky2_tx_complete(struct sky2_port *sky2, u16 done)
1349 struct net_device *dev = sky2->netdev;
1350 struct pci_dev *pdev = sky2->hw->pdev;
1354 BUG_ON(done >= TX_RING_SIZE);
1356 if (unlikely(netif_msg_tx_done(sky2)))
1357 printk(KERN_DEBUG "%s: tx done, up to %u\n",
1360 for (put = sky2->tx_cons; put != done; put = nxt) {
1361 struct tx_ring_info *re = sky2->tx_ring + put;
1362 struct sk_buff *skb = re->skb;
1365 BUG_ON(nxt >= TX_RING_SIZE);
1366 prefetch(sky2->tx_ring + nxt);
1368 /* Check for partial status */
1369 if (tx_dist(put, done) < tx_dist(put, nxt))
1373 pci_unmap_single(pdev, pci_unmap_addr(re, mapaddr),
1374 skb_headlen(skb), PCI_DMA_TODEVICE);
1376 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
1377 struct tx_ring_info *fre;
1378 fre = sky2->tx_ring + RING_NEXT(put + i, TX_RING_SIZE);
1379 pci_unmap_page(pdev, pci_unmap_addr(fre, mapaddr),
1380 skb_shinfo(skb)->frags[i].size,
1387 sky2->tx_cons = put;
1388 if (tx_avail(sky2) > MAX_SKB_TX_LE + 4)
1389 netif_wake_queue(dev);
1392 /* Cleanup all untransmitted buffers, assume transmitter not running */
1393 static void sky2_tx_clean(struct sky2_port *sky2)
1395 spin_lock_bh(&sky2->tx_lock);
1396 sky2_tx_complete(sky2, sky2->tx_prod);
1397 spin_unlock_bh(&sky2->tx_lock);
1400 /* Network shutdown */
1401 static int sky2_down(struct net_device *dev)
1403 struct sky2_port *sky2 = netdev_priv(dev);
1404 struct sky2_hw *hw = sky2->hw;
1405 unsigned port = sky2->port;
1409 /* Never really got started! */
1413 if (netif_msg_ifdown(sky2))
1414 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
1416 /* Stop more packets from being queued */
1417 netif_stop_queue(dev);
1419 sky2_phy_reset(hw, port);
1421 /* Stop transmitter */
1422 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP);
1423 sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR));
1425 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
1426 RB_RST_SET | RB_DIS_OP_MD);
1428 ctrl = gma_read16(hw, port, GM_GP_CTRL);
1429 ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA);
1430 gma_write16(hw, port, GM_GP_CTRL, ctrl);
1432 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
1434 /* Workaround shared GMAC reset */
1435 if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0
1436 && port == 0 && hw->dev[1] && netif_running(hw->dev[1])))
1437 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
1439 /* Disable Force Sync bit and Enable Alloc bit */
1440 sky2_write8(hw, SK_REG(port, TXA_CTRL),
1441 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
1443 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
1444 sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
1445 sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
1447 /* Reset the PCI FIFO of the async Tx queue */
1448 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR),
1449 BMU_RST_SET | BMU_FIFO_RST);
1451 /* Reset the Tx prefetch units */
1452 sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL),
1455 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
1459 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
1460 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
1462 /* Disable port IRQ */
1463 imask = sky2_read32(hw, B0_IMSK);
1464 imask &= ~portirq_msk[port];
1465 sky2_write32(hw, B0_IMSK, imask);
1467 /* turn off LED's */
1468 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
1470 synchronize_irq(hw->pdev->irq);
1472 sky2_tx_clean(sky2);
1473 sky2_rx_clean(sky2);
1475 pci_free_consistent(hw->pdev, RX_LE_BYTES,
1476 sky2->rx_le, sky2->rx_le_map);
1477 kfree(sky2->rx_ring);
1479 pci_free_consistent(hw->pdev,
1480 TX_RING_SIZE * sizeof(struct sky2_tx_le),
1481 sky2->tx_le, sky2->tx_le_map);
1482 kfree(sky2->tx_ring);
1487 sky2->rx_ring = NULL;
1488 sky2->tx_ring = NULL;
1493 static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux)
1498 if (hw->chip_id == CHIP_ID_YUKON_FE)
1499 return (aux & PHY_M_PS_SPEED_100) ? SPEED_100 : SPEED_10;
1501 switch (aux & PHY_M_PS_SPEED_MSK) {
1502 case PHY_M_PS_SPEED_1000:
1504 case PHY_M_PS_SPEED_100:
1511 static void sky2_link_up(struct sky2_port *sky2)
1513 struct sky2_hw *hw = sky2->hw;
1514 unsigned port = sky2->port;
1517 /* Enable Transmit FIFO Underrun */
1518 sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
1520 reg = gma_read16(hw, port, GM_GP_CTRL);
1521 if (sky2->autoneg == AUTONEG_DISABLE) {
1522 reg |= GM_GPCR_AU_ALL_DIS;
1524 /* Is write/read necessary? Copied from sky2_mac_init */
1525 gma_write16(hw, port, GM_GP_CTRL, reg);
1526 gma_read16(hw, port, GM_GP_CTRL);
1528 switch (sky2->speed) {
1530 reg &= ~GM_GPCR_SPEED_100;
1531 reg |= GM_GPCR_SPEED_1000;
1534 reg &= ~GM_GPCR_SPEED_1000;
1535 reg |= GM_GPCR_SPEED_100;
1538 reg &= ~(GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100);
1542 reg &= ~GM_GPCR_AU_ALL_DIS;
1544 if (sky2->duplex == DUPLEX_FULL || sky2->autoneg == AUTONEG_ENABLE)
1545 reg |= GM_GPCR_DUP_FULL;
1548 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
1549 gma_write16(hw, port, GM_GP_CTRL, reg);
1550 gma_read16(hw, port, GM_GP_CTRL);
1552 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
1554 netif_carrier_on(sky2->netdev);
1555 netif_wake_queue(sky2->netdev);
1557 /* Turn on link LED */
1558 sky2_write8(hw, SK_REG(port, LNK_LED_REG),
1559 LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF);
1561 if (hw->chip_id == CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U) {
1562 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
1563 u16 led = PHY_M_LEDC_LOS_CTRL(1); /* link active */
1565 switch(sky2->speed) {
1567 led |= PHY_M_LEDC_INIT_CTRL(7);
1571 led |= PHY_M_LEDC_STA1_CTRL(7);
1575 led |= PHY_M_LEDC_STA0_CTRL(7);
1579 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
1580 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, led);
1581 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
1584 if (netif_msg_link(sky2))
1585 printk(KERN_INFO PFX
1586 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
1587 sky2->netdev->name, sky2->speed,
1588 sky2->duplex == DUPLEX_FULL ? "full" : "half",
1589 (sky2->tx_pause && sky2->rx_pause) ? "both" :
1590 sky2->tx_pause ? "tx" : sky2->rx_pause ? "rx" : "none");
1593 static void sky2_link_down(struct sky2_port *sky2)
1595 struct sky2_hw *hw = sky2->hw;
1596 unsigned port = sky2->port;
1599 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
1601 reg = gma_read16(hw, port, GM_GP_CTRL);
1602 reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
1603 gma_write16(hw, port, GM_GP_CTRL, reg);
1604 gma_read16(hw, port, GM_GP_CTRL); /* PCI post */
1606 if (sky2->rx_pause && !sky2->tx_pause) {
1607 /* restore Asymmetric Pause bit */
1608 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
1609 gm_phy_read(hw, port, PHY_MARV_AUNE_ADV)
1613 netif_carrier_off(sky2->netdev);
1614 netif_stop_queue(sky2->netdev);
1616 /* Turn on link LED */
1617 sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
1619 if (netif_msg_link(sky2))
1620 printk(KERN_INFO PFX "%s: Link is down.\n", sky2->netdev->name);
1621 sky2_phy_init(hw, port);
1624 static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux)
1626 struct sky2_hw *hw = sky2->hw;
1627 unsigned port = sky2->port;
1630 lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP);
1632 if (lpa & PHY_M_AN_RF) {
1633 printk(KERN_ERR PFX "%s: remote fault", sky2->netdev->name);
1637 if (hw->chip_id != CHIP_ID_YUKON_FE &&
1638 gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) {
1639 printk(KERN_ERR PFX "%s: master/slave fault",
1640 sky2->netdev->name);
1644 if (!(aux & PHY_M_PS_SPDUP_RES)) {
1645 printk(KERN_ERR PFX "%s: speed/duplex mismatch",
1646 sky2->netdev->name);
1650 sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
1652 sky2->speed = sky2_phy_speed(hw, aux);
1654 /* Pause bits are offset (9..8) */
1655 if (hw->chip_id == CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U)
1658 sky2->rx_pause = (aux & PHY_M_PS_RX_P_EN) != 0;
1659 sky2->tx_pause = (aux & PHY_M_PS_TX_P_EN) != 0;
1661 if ((sky2->tx_pause || sky2->rx_pause)
1662 && !(sky2->speed < SPEED_1000 && sky2->duplex == DUPLEX_HALF))
1663 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
1665 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1670 /* Interrupt from PHY */
1671 static void sky2_phy_intr(struct sky2_hw *hw, unsigned port)
1673 struct net_device *dev = hw->dev[port];
1674 struct sky2_port *sky2 = netdev_priv(dev);
1675 u16 istatus, phystat;
1677 spin_lock(&sky2->phy_lock);
1678 istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
1679 phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
1681 if (!netif_running(dev))
1684 if (netif_msg_intr(sky2))
1685 printk(KERN_INFO PFX "%s: phy interrupt status 0x%x 0x%x\n",
1686 sky2->netdev->name, istatus, phystat);
1688 if (istatus & PHY_M_IS_AN_COMPL) {
1689 if (sky2_autoneg_done(sky2, phystat) == 0)
1694 if (istatus & PHY_M_IS_LSP_CHANGE)
1695 sky2->speed = sky2_phy_speed(hw, phystat);
1697 if (istatus & PHY_M_IS_DUP_CHANGE)
1699 (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
1701 if (istatus & PHY_M_IS_LST_CHANGE) {
1702 if (phystat & PHY_M_PS_LINK_UP)
1705 sky2_link_down(sky2);
1708 spin_unlock(&sky2->phy_lock);
1712 /* Transmit timeout is only called if we are running, carries is up
1713 * and tx queue is full (stopped).
1715 static void sky2_tx_timeout(struct net_device *dev)
1717 struct sky2_port *sky2 = netdev_priv(dev);
1718 struct sky2_hw *hw = sky2->hw;
1719 unsigned txq = txqaddr[sky2->port];
1722 if (netif_msg_timer(sky2))
1723 printk(KERN_ERR PFX "%s: tx timeout\n", dev->name);
1725 report = sky2_read16(hw, sky2->port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX);
1726 done = sky2_read16(hw, Q_ADDR(txq, Q_DONE));
1728 printk(KERN_DEBUG PFX "%s: transmit ring %u .. %u report=%u done=%u\n",
1730 sky2->tx_cons, sky2->tx_prod, report, done);
1732 if (report != done) {
1733 printk(KERN_INFO PFX "status burst pending (irq moderation?)\n");
1735 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
1736 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
1737 } else if (report != sky2->tx_cons) {
1738 printk(KERN_INFO PFX "status report lost?\n");
1740 spin_lock_bh(&sky2->tx_lock);
1741 sky2_tx_complete(sky2, report);
1742 spin_unlock_bh(&sky2->tx_lock);
1744 printk(KERN_INFO PFX "hardware hung? flushing\n");
1746 sky2_write32(hw, Q_ADDR(txq, Q_CSR), BMU_STOP);
1747 sky2_write32(hw, Y2_QADDR(txq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
1749 sky2_tx_clean(sky2);
1752 sky2_prefetch_init(hw, txq, sky2->tx_le_map, TX_RING_SIZE - 1);
1757 /* Want receive buffer size to be multiple of 64 bits
1758 * and incl room for vlan and truncation
1760 static inline unsigned sky2_buf_size(int mtu)
1762 return ALIGN(mtu + ETH_HLEN + VLAN_HLEN, 8) + 8;
1765 static int sky2_change_mtu(struct net_device *dev, int new_mtu)
1767 struct sky2_port *sky2 = netdev_priv(dev);
1768 struct sky2_hw *hw = sky2->hw;
1773 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
1776 if (hw->chip_id == CHIP_ID_YUKON_EC_U && new_mtu > ETH_DATA_LEN)
1779 if (!netif_running(dev)) {
1784 imask = sky2_read32(hw, B0_IMSK);
1785 sky2_write32(hw, B0_IMSK, 0);
1787 dev->trans_start = jiffies; /* prevent tx timeout */
1788 netif_stop_queue(dev);
1789 netif_poll_disable(hw->dev[0]);
1791 synchronize_irq(hw->pdev->irq);
1793 ctl = gma_read16(hw, sky2->port, GM_GP_CTRL);
1794 gma_write16(hw, sky2->port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA);
1796 sky2_rx_clean(sky2);
1799 sky2->rx_bufsize = sky2_buf_size(new_mtu);
1800 mode = DATA_BLIND_VAL(DATA_BLIND_DEF) |
1801 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
1803 if (dev->mtu > ETH_DATA_LEN)
1804 mode |= GM_SMOD_JUMBO_ENA;
1806 gma_write16(hw, sky2->port, GM_SERIAL_MODE, mode);
1808 sky2_write8(hw, RB_ADDR(rxqaddr[sky2->port], RB_CTRL), RB_ENA_OP_MD);
1810 err = sky2_rx_start(sky2);
1811 sky2_write32(hw, B0_IMSK, imask);
1816 gma_write16(hw, sky2->port, GM_GP_CTRL, ctl);
1818 netif_poll_enable(hw->dev[0]);
1819 netif_wake_queue(dev);
1826 * Receive one packet.
1827 * For small packets or errors, just reuse existing skb.
1828 * For larger packets, get new buffer.
1830 static struct sk_buff *sky2_receive(struct net_device *dev,
1831 u16 length, u32 status)
1833 struct sky2_port *sky2 = netdev_priv(dev);
1834 struct ring_info *re = sky2->rx_ring + sky2->rx_next;
1835 struct sk_buff *skb = NULL;
1837 if (unlikely(netif_msg_rx_status(sky2)))
1838 printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n",
1839 dev->name, sky2->rx_next, status, length);
1841 sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending;
1842 prefetch(sky2->rx_ring + sky2->rx_next);
1844 if (status & GMR_FS_ANY_ERR)
1847 if (!(status & GMR_FS_RX_OK))
1850 if (length > dev->mtu + ETH_HLEN)
1853 if (length < copybreak) {
1854 skb = netdev_alloc_skb(dev, length + 2);
1858 skb_reserve(skb, 2);
1859 pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->mapaddr,
1860 length, PCI_DMA_FROMDEVICE);
1861 memcpy(skb->data, re->skb->data, length);
1862 skb->ip_summed = re->skb->ip_summed;
1863 skb->csum = re->skb->csum;
1864 pci_dma_sync_single_for_device(sky2->hw->pdev, re->mapaddr,
1865 length, PCI_DMA_FROMDEVICE);
1867 struct sk_buff *nskb;
1869 nskb = sky2_alloc_skb(dev, sky2->rx_bufsize, GFP_ATOMIC);
1875 pci_unmap_single(sky2->hw->pdev, re->mapaddr,
1876 sky2->rx_bufsize, PCI_DMA_FROMDEVICE);
1877 prefetch(skb->data);
1879 re->mapaddr = pci_map_single(sky2->hw->pdev, nskb->data,
1880 sky2->rx_bufsize, PCI_DMA_FROMDEVICE);
1883 skb_put(skb, length);
1885 re->skb->ip_summed = CHECKSUM_NONE;
1886 sky2_rx_add(sky2, re->mapaddr);
1891 ++sky2->net_stats.rx_over_errors;
1895 ++sky2->net_stats.rx_errors;
1897 if (netif_msg_rx_err(sky2) && net_ratelimit())
1898 printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n",
1899 dev->name, status, length);
1901 if (status & (GMR_FS_LONG_ERR | GMR_FS_UN_SIZE))
1902 sky2->net_stats.rx_length_errors++;
1903 if (status & GMR_FS_FRAGMENT)
1904 sky2->net_stats.rx_frame_errors++;
1905 if (status & GMR_FS_CRC_ERR)
1906 sky2->net_stats.rx_crc_errors++;
1907 if (status & GMR_FS_RX_FF_OV)
1908 sky2->net_stats.rx_fifo_errors++;
1913 /* Transmit complete */
1914 static inline void sky2_tx_done(struct net_device *dev, u16 last)
1916 struct sky2_port *sky2 = netdev_priv(dev);
1918 if (netif_running(dev)) {
1919 spin_lock(&sky2->tx_lock);
1920 sky2_tx_complete(sky2, last);
1921 spin_unlock(&sky2->tx_lock);
1925 /* Process status response ring */
1926 static int sky2_status_intr(struct sky2_hw *hw, int to_do)
1928 struct sky2_port *sky2;
1930 unsigned buf_write[2] = { 0, 0 };
1931 u16 hwidx = sky2_read16(hw, STAT_PUT_IDX);
1935 while (hw->st_idx != hwidx) {
1936 struct sky2_status_le *le = hw->st_le + hw->st_idx;
1937 struct net_device *dev;
1938 struct sk_buff *skb;
1942 hw->st_idx = RING_NEXT(hw->st_idx, STATUS_RING_SIZE);
1944 BUG_ON(le->link >= 2);
1945 dev = hw->dev[le->link];
1947 sky2 = netdev_priv(dev);
1948 length = le->length;
1949 status = le->status;
1951 switch (le->opcode & ~HW_OWNER) {
1953 skb = sky2_receive(dev, length, status);
1957 skb->protocol = eth_type_trans(skb, dev);
1958 dev->last_rx = jiffies;
1960 #ifdef SKY2_VLAN_TAG_USED
1961 if (sky2->vlgrp && (status & GMR_FS_VLAN)) {
1962 vlan_hwaccel_receive_skb(skb,
1964 be16_to_cpu(sky2->rx_tag));
1967 netif_receive_skb(skb);
1969 /* Update receiver after 16 frames */
1970 if (++buf_write[le->link] == RX_BUF_WRITE) {
1971 sky2_put_idx(hw, rxqaddr[le->link],
1973 buf_write[le->link] = 0;
1976 /* Stop after net poll weight */
1977 if (++work_done >= to_do)
1981 #ifdef SKY2_VLAN_TAG_USED
1983 sky2->rx_tag = length;
1987 sky2->rx_tag = length;
1991 skb = sky2->rx_ring[sky2->rx_next].skb;
1992 skb->ip_summed = CHECKSUM_HW;
1993 skb->csum = le16_to_cpu(status);
1997 /* TX index reports status for both ports */
1998 BUILD_BUG_ON(TX_RING_SIZE > 0x1000);
1999 sky2_tx_done(hw->dev[0], status & 0xfff);
2001 sky2_tx_done(hw->dev[1],
2002 ((status >> 24) & 0xff)
2003 | (u16)(length & 0xf) << 8);
2007 if (net_ratelimit())
2008 printk(KERN_WARNING PFX
2009 "unknown status opcode 0x%x\n", le->opcode);
2014 /* Fully processed status ring so clear irq */
2015 sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
2019 sky2 = netdev_priv(hw->dev[0]);
2020 sky2_put_idx(hw, Q_R1, sky2->rx_put);
2024 sky2 = netdev_priv(hw->dev[1]);
2025 sky2_put_idx(hw, Q_R2, sky2->rx_put);
2031 static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status)
2033 struct net_device *dev = hw->dev[port];
2035 if (net_ratelimit())
2036 printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n",
2039 if (status & Y2_IS_PAR_RD1) {
2040 if (net_ratelimit())
2041 printk(KERN_ERR PFX "%s: ram data read parity error\n",
2044 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR);
2047 if (status & Y2_IS_PAR_WR1) {
2048 if (net_ratelimit())
2049 printk(KERN_ERR PFX "%s: ram data write parity error\n",
2052 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR);
2055 if (status & Y2_IS_PAR_MAC1) {
2056 if (net_ratelimit())
2057 printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name);
2058 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE);
2061 if (status & Y2_IS_PAR_RX1) {
2062 if (net_ratelimit())
2063 printk(KERN_ERR PFX "%s: RX parity error\n", dev->name);
2064 sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR);
2067 if (status & Y2_IS_TCP_TXA1) {
2068 if (net_ratelimit())
2069 printk(KERN_ERR PFX "%s: TCP segmentation error\n",
2071 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP);
2075 static void sky2_hw_intr(struct sky2_hw *hw)
2077 u32 status = sky2_read32(hw, B0_HWE_ISRC);
2079 if (status & Y2_IS_TIST_OV)
2080 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
2082 if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) {
2085 pci_err = sky2_pci_read16(hw, PCI_STATUS);
2086 if (net_ratelimit())
2087 printk(KERN_ERR PFX "%s: pci hw error (0x%x)\n",
2088 pci_name(hw->pdev), pci_err);
2090 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2091 sky2_pci_write16(hw, PCI_STATUS,
2092 pci_err | PCI_STATUS_ERROR_BITS);
2093 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2096 if (status & Y2_IS_PCI_EXP) {
2097 /* PCI-Express uncorrectable Error occurred */
2100 pex_err = sky2_pci_read32(hw, PEX_UNC_ERR_STAT);
2102 if (net_ratelimit())
2103 printk(KERN_ERR PFX "%s: pci express error (0x%x)\n",
2104 pci_name(hw->pdev), pex_err);
2106 /* clear the interrupt */
2107 sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2108 sky2_pci_write32(hw, PEX_UNC_ERR_STAT,
2110 sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2112 if (pex_err & PEX_FATAL_ERRORS) {
2113 u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK);
2114 hwmsk &= ~Y2_IS_PCI_EXP;
2115 sky2_write32(hw, B0_HWE_IMSK, hwmsk);
2119 if (status & Y2_HWE_L1_MASK)
2120 sky2_hw_error(hw, 0, status);
2122 if (status & Y2_HWE_L1_MASK)
2123 sky2_hw_error(hw, 1, status);
2126 static void sky2_mac_intr(struct sky2_hw *hw, unsigned port)
2128 struct net_device *dev = hw->dev[port];
2129 struct sky2_port *sky2 = netdev_priv(dev);
2130 u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
2132 if (netif_msg_intr(sky2))
2133 printk(KERN_INFO PFX "%s: mac interrupt status 0x%x\n",
2136 if (status & GM_IS_RX_FF_OR) {
2137 ++sky2->net_stats.rx_fifo_errors;
2138 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
2141 if (status & GM_IS_TX_FF_UR) {
2142 ++sky2->net_stats.tx_fifo_errors;
2143 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
2147 /* This should never happen it is a fatal situation */
2148 static void sky2_descriptor_error(struct sky2_hw *hw, unsigned port,
2149 const char *rxtx, u32 mask)
2151 struct net_device *dev = hw->dev[port];
2152 struct sky2_port *sky2 = netdev_priv(dev);
2155 printk(KERN_ERR PFX "%s: %s descriptor error (hardware problem)\n",
2156 dev ? dev->name : "<not registered>", rxtx);
2158 imask = sky2_read32(hw, B0_IMSK);
2160 sky2_write32(hw, B0_IMSK, imask);
2163 spin_lock(&sky2->phy_lock);
2164 sky2_link_down(sky2);
2165 spin_unlock(&sky2->phy_lock);
2169 /* If idle then force a fake soft NAPI poll once a second
2170 * to work around cases where sharing an edge triggered interrupt.
2172 static inline void sky2_idle_start(struct sky2_hw *hw)
2174 if (idle_timeout > 0)
2175 mod_timer(&hw->idle_timer,
2176 jiffies + msecs_to_jiffies(idle_timeout));
2179 static void sky2_idle(unsigned long arg)
2181 struct sky2_hw *hw = (struct sky2_hw *) arg;
2182 struct net_device *dev = hw->dev[0];
2184 if (__netif_rx_schedule_prep(dev))
2185 __netif_rx_schedule(dev);
2187 mod_timer(&hw->idle_timer, jiffies + msecs_to_jiffies(idle_timeout));
2191 static int sky2_poll(struct net_device *dev0, int *budget)
2193 struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw;
2194 int work_limit = min(dev0->quota, *budget);
2196 u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
2198 if (status & Y2_IS_HW_ERR)
2201 if (status & Y2_IS_IRQ_PHY1)
2202 sky2_phy_intr(hw, 0);
2204 if (status & Y2_IS_IRQ_PHY2)
2205 sky2_phy_intr(hw, 1);
2207 if (status & Y2_IS_IRQ_MAC1)
2208 sky2_mac_intr(hw, 0);
2210 if (status & Y2_IS_IRQ_MAC2)
2211 sky2_mac_intr(hw, 1);
2213 if (status & Y2_IS_CHK_RX1)
2214 sky2_descriptor_error(hw, 0, "receive", Y2_IS_CHK_RX1);
2216 if (status & Y2_IS_CHK_RX2)
2217 sky2_descriptor_error(hw, 1, "receive", Y2_IS_CHK_RX2);
2219 if (status & Y2_IS_CHK_TXA1)
2220 sky2_descriptor_error(hw, 0, "transmit", Y2_IS_CHK_TXA1);
2222 if (status & Y2_IS_CHK_TXA2)
2223 sky2_descriptor_error(hw, 1, "transmit", Y2_IS_CHK_TXA2);
2225 work_done = sky2_status_intr(hw, work_limit);
2226 if (work_done < work_limit) {
2227 netif_rx_complete(dev0);
2229 sky2_read32(hw, B0_Y2_SP_LISR);
2232 *budget -= work_done;
2233 dev0->quota -= work_done;
2238 static irqreturn_t sky2_intr(int irq, void *dev_id, struct pt_regs *regs)
2240 struct sky2_hw *hw = dev_id;
2241 struct net_device *dev0 = hw->dev[0];
2244 /* Reading this mask interrupts as side effect */
2245 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
2246 if (status == 0 || status == ~0)
2249 prefetch(&hw->st_le[hw->st_idx]);
2250 if (likely(__netif_rx_schedule_prep(dev0)))
2251 __netif_rx_schedule(dev0);
2256 #ifdef CONFIG_NET_POLL_CONTROLLER
2257 static void sky2_netpoll(struct net_device *dev)
2259 struct sky2_port *sky2 = netdev_priv(dev);
2260 struct net_device *dev0 = sky2->hw->dev[0];
2262 if (netif_running(dev) && __netif_rx_schedule_prep(dev0))
2263 __netif_rx_schedule(dev0);
2267 /* Chip internal frequency for clock calculations */
2268 static inline u32 sky2_mhz(const struct sky2_hw *hw)
2270 switch (hw->chip_id) {
2271 case CHIP_ID_YUKON_EC:
2272 case CHIP_ID_YUKON_EC_U:
2273 return 125; /* 125 Mhz */
2274 case CHIP_ID_YUKON_FE:
2275 return 100; /* 100 Mhz */
2276 default: /* YUKON_XL */
2277 return 156; /* 156 Mhz */
2281 static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us)
2283 return sky2_mhz(hw) * us;
2286 static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk)
2288 return clk / sky2_mhz(hw);
2292 static int sky2_reset(struct sky2_hw *hw)
2298 sky2_write8(hw, B0_CTST, CS_RST_CLR);
2300 hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
2301 if (hw->chip_id < CHIP_ID_YUKON_XL || hw->chip_id > CHIP_ID_YUKON_FE) {
2302 printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n",
2303 pci_name(hw->pdev), hw->chip_id);
2307 hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
2309 /* This rev is really old, and requires untested workarounds */
2310 if (hw->chip_id == CHIP_ID_YUKON_EC && hw->chip_rev == CHIP_REV_YU_EC_A1) {
2311 printk(KERN_ERR PFX "%s: unsupported revision Yukon-%s (0x%x) rev %d\n",
2312 pci_name(hw->pdev), yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL],
2313 hw->chip_id, hw->chip_rev);
2318 if (hw->chip_id <= CHIP_ID_YUKON_EC) {
2319 sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
2320 sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE);
2324 sky2_write8(hw, B0_CTST, CS_RST_SET);
2325 sky2_write8(hw, B0_CTST, CS_RST_CLR);
2327 /* clear PCI errors, if any */
2328 status = sky2_pci_read16(hw, PCI_STATUS);
2330 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2331 sky2_pci_write16(hw, PCI_STATUS, status | PCI_STATUS_ERROR_BITS);
2334 sky2_write8(hw, B0_CTST, CS_MRST_CLR);
2336 /* clear any PEX errors */
2337 if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP))
2338 sky2_pci_write32(hw, PEX_UNC_ERR_STAT, 0xffffffffUL);
2341 pmd_type = sky2_read8(hw, B2_PMD_TYP);
2342 hw->copper = !(pmd_type == 'L' || pmd_type == 'S');
2345 t8 = sky2_read8(hw, B2_Y2_HW_RES);
2346 if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
2347 if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC))
2351 sky2_set_power_state(hw, PCI_D0);
2353 for (i = 0; i < hw->ports; i++) {
2354 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
2355 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
2358 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2360 /* Clear I2C IRQ noise */
2361 sky2_write32(hw, B2_I2C_IRQ, 1);
2363 /* turn off hardware timer (unused) */
2364 sky2_write8(hw, B2_TI_CTRL, TIM_STOP);
2365 sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
2367 sky2_write8(hw, B0_Y2LED, LED_STAT_ON);
2369 /* Turn off descriptor polling */
2370 sky2_write32(hw, B28_DPT_CTRL, DPT_STOP);
2372 /* Turn off receive timestamp */
2373 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP);
2374 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
2376 /* enable the Tx Arbiters */
2377 for (i = 0; i < hw->ports; i++)
2378 sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
2380 /* Initialize ram interface */
2381 for (i = 0; i < hw->ports; i++) {
2382 sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR);
2384 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53);
2385 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53);
2386 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53);
2387 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53);
2388 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53);
2389 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53);
2390 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53);
2391 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53);
2392 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53);
2393 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53);
2394 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53);
2395 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53);
2398 sky2_write32(hw, B0_HWE_IMSK, Y2_HWE_ALL_MASK);
2400 for (i = 0; i < hw->ports; i++)
2401 sky2_phy_reset(hw, i);
2403 memset(hw->st_le, 0, STATUS_LE_BYTES);
2406 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET);
2407 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR);
2409 sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma);
2410 sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32);
2412 /* Set the list last index */
2413 sky2_write16(hw, STAT_LAST_IDX, STATUS_RING_SIZE - 1);
2415 sky2_write16(hw, STAT_TX_IDX_TH, 10);
2416 sky2_write8(hw, STAT_FIFO_WM, 16);
2418 /* set Status-FIFO ISR watermark */
2419 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0)
2420 sky2_write8(hw, STAT_FIFO_ISR_WM, 4);
2422 sky2_write8(hw, STAT_FIFO_ISR_WM, 16);
2424 sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 1000));
2425 sky2_write32(hw, STAT_ISR_TIMER_INI, sky2_us2clk(hw, 20));
2426 sky2_write32(hw, STAT_LEV_TIMER_INI, sky2_us2clk(hw, 100));
2428 /* enable status unit */
2429 sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON);
2431 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
2432 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
2433 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
2438 static u32 sky2_supported_modes(const struct sky2_hw *hw)
2442 modes = SUPPORTED_10baseT_Half
2443 | SUPPORTED_10baseT_Full
2444 | SUPPORTED_100baseT_Half
2445 | SUPPORTED_100baseT_Full
2446 | SUPPORTED_Autoneg | SUPPORTED_TP;
2448 if (hw->chip_id != CHIP_ID_YUKON_FE)
2449 modes |= SUPPORTED_1000baseT_Half
2450 | SUPPORTED_1000baseT_Full;
2452 modes = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE
2453 | SUPPORTED_Autoneg;
2457 static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2459 struct sky2_port *sky2 = netdev_priv(dev);
2460 struct sky2_hw *hw = sky2->hw;
2462 ecmd->transceiver = XCVR_INTERNAL;
2463 ecmd->supported = sky2_supported_modes(hw);
2464 ecmd->phy_address = PHY_ADDR_MARV;
2466 ecmd->supported = SUPPORTED_10baseT_Half
2467 | SUPPORTED_10baseT_Full
2468 | SUPPORTED_100baseT_Half
2469 | SUPPORTED_100baseT_Full
2470 | SUPPORTED_1000baseT_Half
2471 | SUPPORTED_1000baseT_Full
2472 | SUPPORTED_Autoneg | SUPPORTED_TP;
2473 ecmd->port = PORT_TP;
2475 ecmd->port = PORT_FIBRE;
2477 ecmd->advertising = sky2->advertising;
2478 ecmd->autoneg = sky2->autoneg;
2479 ecmd->speed = sky2->speed;
2480 ecmd->duplex = sky2->duplex;
2484 static int sky2_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2486 struct sky2_port *sky2 = netdev_priv(dev);
2487 const struct sky2_hw *hw = sky2->hw;
2488 u32 supported = sky2_supported_modes(hw);
2490 if (ecmd->autoneg == AUTONEG_ENABLE) {
2491 ecmd->advertising = supported;
2497 switch (ecmd->speed) {
2499 if (ecmd->duplex == DUPLEX_FULL)
2500 setting = SUPPORTED_1000baseT_Full;
2501 else if (ecmd->duplex == DUPLEX_HALF)
2502 setting = SUPPORTED_1000baseT_Half;
2507 if (ecmd->duplex == DUPLEX_FULL)
2508 setting = SUPPORTED_100baseT_Full;
2509 else if (ecmd->duplex == DUPLEX_HALF)
2510 setting = SUPPORTED_100baseT_Half;
2516 if (ecmd->duplex == DUPLEX_FULL)
2517 setting = SUPPORTED_10baseT_Full;
2518 else if (ecmd->duplex == DUPLEX_HALF)
2519 setting = SUPPORTED_10baseT_Half;
2527 if ((setting & supported) == 0)
2530 sky2->speed = ecmd->speed;
2531 sky2->duplex = ecmd->duplex;
2534 sky2->autoneg = ecmd->autoneg;
2535 sky2->advertising = ecmd->advertising;
2537 if (netif_running(dev))
2538 sky2_phy_reinit(sky2);
2543 static void sky2_get_drvinfo(struct net_device *dev,
2544 struct ethtool_drvinfo *info)
2546 struct sky2_port *sky2 = netdev_priv(dev);
2548 strcpy(info->driver, DRV_NAME);
2549 strcpy(info->version, DRV_VERSION);
2550 strcpy(info->fw_version, "N/A");
2551 strcpy(info->bus_info, pci_name(sky2->hw->pdev));
2554 static const struct sky2_stat {
2555 char name[ETH_GSTRING_LEN];
2558 { "tx_bytes", GM_TXO_OK_HI },
2559 { "rx_bytes", GM_RXO_OK_HI },
2560 { "tx_broadcast", GM_TXF_BC_OK },
2561 { "rx_broadcast", GM_RXF_BC_OK },
2562 { "tx_multicast", GM_TXF_MC_OK },
2563 { "rx_multicast", GM_RXF_MC_OK },
2564 { "tx_unicast", GM_TXF_UC_OK },
2565 { "rx_unicast", GM_RXF_UC_OK },
2566 { "tx_mac_pause", GM_TXF_MPAUSE },
2567 { "rx_mac_pause", GM_RXF_MPAUSE },
2568 { "collisions", GM_TXF_COL },
2569 { "late_collision",GM_TXF_LAT_COL },
2570 { "aborted", GM_TXF_ABO_COL },
2571 { "single_collisions", GM_TXF_SNG_COL },
2572 { "multi_collisions", GM_TXF_MUL_COL },
2574 { "rx_short", GM_RXF_SHT },
2575 { "rx_runt", GM_RXE_FRAG },
2576 { "rx_64_byte_packets", GM_RXF_64B },
2577 { "rx_65_to_127_byte_packets", GM_RXF_127B },
2578 { "rx_128_to_255_byte_packets", GM_RXF_255B },
2579 { "rx_256_to_511_byte_packets", GM_RXF_511B },
2580 { "rx_512_to_1023_byte_packets", GM_RXF_1023B },
2581 { "rx_1024_to_1518_byte_packets", GM_RXF_1518B },
2582 { "rx_1518_to_max_byte_packets", GM_RXF_MAX_SZ },
2583 { "rx_too_long", GM_RXF_LNG_ERR },
2584 { "rx_fifo_overflow", GM_RXE_FIFO_OV },
2585 { "rx_jabber", GM_RXF_JAB_PKT },
2586 { "rx_fcs_error", GM_RXF_FCS_ERR },
2588 { "tx_64_byte_packets", GM_TXF_64B },
2589 { "tx_65_to_127_byte_packets", GM_TXF_127B },
2590 { "tx_128_to_255_byte_packets", GM_TXF_255B },
2591 { "tx_256_to_511_byte_packets", GM_TXF_511B },
2592 { "tx_512_to_1023_byte_packets", GM_TXF_1023B },
2593 { "tx_1024_to_1518_byte_packets", GM_TXF_1518B },
2594 { "tx_1519_to_max_byte_packets", GM_TXF_MAX_SZ },
2595 { "tx_fifo_underrun", GM_TXE_FIFO_UR },
2598 static u32 sky2_get_rx_csum(struct net_device *dev)
2600 struct sky2_port *sky2 = netdev_priv(dev);
2602 return sky2->rx_csum;
2605 static int sky2_set_rx_csum(struct net_device *dev, u32 data)
2607 struct sky2_port *sky2 = netdev_priv(dev);
2609 sky2->rx_csum = data;
2611 sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR),
2612 data ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
2617 static u32 sky2_get_msglevel(struct net_device *netdev)
2619 struct sky2_port *sky2 = netdev_priv(netdev);
2620 return sky2->msg_enable;
2623 static int sky2_nway_reset(struct net_device *dev)
2625 struct sky2_port *sky2 = netdev_priv(dev);
2627 if (sky2->autoneg != AUTONEG_ENABLE)
2630 sky2_phy_reinit(sky2);
2635 static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count)
2637 struct sky2_hw *hw = sky2->hw;
2638 unsigned port = sky2->port;
2641 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
2642 | (u64) gma_read32(hw, port, GM_TXO_OK_LO);
2643 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
2644 | (u64) gma_read32(hw, port, GM_RXO_OK_LO);
2646 for (i = 2; i < count; i++)
2647 data[i] = (u64) gma_read32(hw, port, sky2_stats[i].offset);
2650 static void sky2_set_msglevel(struct net_device *netdev, u32 value)
2652 struct sky2_port *sky2 = netdev_priv(netdev);
2653 sky2->msg_enable = value;
2656 static int sky2_get_stats_count(struct net_device *dev)
2658 return ARRAY_SIZE(sky2_stats);
2661 static void sky2_get_ethtool_stats(struct net_device *dev,
2662 struct ethtool_stats *stats, u64 * data)
2664 struct sky2_port *sky2 = netdev_priv(dev);
2666 sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats));
2669 static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data)
2673 switch (stringset) {
2675 for (i = 0; i < ARRAY_SIZE(sky2_stats); i++)
2676 memcpy(data + i * ETH_GSTRING_LEN,
2677 sky2_stats[i].name, ETH_GSTRING_LEN);
2682 /* Use hardware MIB variables for critical path statistics and
2683 * transmit feedback not reported at interrupt.
2684 * Other errors are accounted for in interrupt handler.
2686 static struct net_device_stats *sky2_get_stats(struct net_device *dev)
2688 struct sky2_port *sky2 = netdev_priv(dev);
2691 sky2_phy_stats(sky2, data, ARRAY_SIZE(data));
2693 sky2->net_stats.tx_bytes = data[0];
2694 sky2->net_stats.rx_bytes = data[1];
2695 sky2->net_stats.tx_packets = data[2] + data[4] + data[6];
2696 sky2->net_stats.rx_packets = data[3] + data[5] + data[7];
2697 sky2->net_stats.multicast = data[3] + data[5];
2698 sky2->net_stats.collisions = data[10];
2699 sky2->net_stats.tx_aborted_errors = data[12];
2701 return &sky2->net_stats;
2704 static int sky2_set_mac_address(struct net_device *dev, void *p)
2706 struct sky2_port *sky2 = netdev_priv(dev);
2707 struct sky2_hw *hw = sky2->hw;
2708 unsigned port = sky2->port;
2709 const struct sockaddr *addr = p;
2711 if (!is_valid_ether_addr(addr->sa_data))
2712 return -EADDRNOTAVAIL;
2714 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
2715 memcpy_toio(hw->regs + B2_MAC_1 + port * 8,
2716 dev->dev_addr, ETH_ALEN);
2717 memcpy_toio(hw->regs + B2_MAC_2 + port * 8,
2718 dev->dev_addr, ETH_ALEN);
2720 /* virtual address for data */
2721 gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
2723 /* physical address: used for pause frames */
2724 gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
2729 static void sky2_set_multicast(struct net_device *dev)
2731 struct sky2_port *sky2 = netdev_priv(dev);
2732 struct sky2_hw *hw = sky2->hw;
2733 unsigned port = sky2->port;
2734 struct dev_mc_list *list = dev->mc_list;
2738 memset(filter, 0, sizeof(filter));
2740 reg = gma_read16(hw, port, GM_RX_CTRL);
2741 reg |= GM_RXCR_UCF_ENA;
2743 if (dev->flags & IFF_PROMISC) /* promiscuous */
2744 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
2745 else if ((dev->flags & IFF_ALLMULTI) || dev->mc_count > 16) /* all multicast */
2746 memset(filter, 0xff, sizeof(filter));
2747 else if (dev->mc_count == 0) /* no multicast */
2748 reg &= ~GM_RXCR_MCF_ENA;
2751 reg |= GM_RXCR_MCF_ENA;
2753 for (i = 0; list && i < dev->mc_count; i++, list = list->next) {
2754 u32 bit = ether_crc(ETH_ALEN, list->dmi_addr) & 0x3f;
2755 filter[bit / 8] |= 1 << (bit % 8);
2759 gma_write16(hw, port, GM_MC_ADDR_H1,
2760 (u16) filter[0] | ((u16) filter[1] << 8));
2761 gma_write16(hw, port, GM_MC_ADDR_H2,
2762 (u16) filter[2] | ((u16) filter[3] << 8));
2763 gma_write16(hw, port, GM_MC_ADDR_H3,
2764 (u16) filter[4] | ((u16) filter[5] << 8));
2765 gma_write16(hw, port, GM_MC_ADDR_H4,
2766 (u16) filter[6] | ((u16) filter[7] << 8));
2768 gma_write16(hw, port, GM_RX_CTRL, reg);
2771 /* Can have one global because blinking is controlled by
2772 * ethtool and that is always under RTNL mutex
2774 static void sky2_led(struct sky2_hw *hw, unsigned port, int on)
2778 switch (hw->chip_id) {
2779 case CHIP_ID_YUKON_XL:
2780 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
2781 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
2782 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
2783 on ? (PHY_M_LEDC_LOS_CTRL(1) |
2784 PHY_M_LEDC_INIT_CTRL(7) |
2785 PHY_M_LEDC_STA1_CTRL(7) |
2786 PHY_M_LEDC_STA0_CTRL(7))
2789 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
2793 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
2794 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
2795 on ? PHY_M_LED_MO_DUP(MO_LED_ON) |
2796 PHY_M_LED_MO_10(MO_LED_ON) |
2797 PHY_M_LED_MO_100(MO_LED_ON) |
2798 PHY_M_LED_MO_1000(MO_LED_ON) |
2799 PHY_M_LED_MO_RX(MO_LED_ON)
2800 : PHY_M_LED_MO_DUP(MO_LED_OFF) |
2801 PHY_M_LED_MO_10(MO_LED_OFF) |
2802 PHY_M_LED_MO_100(MO_LED_OFF) |
2803 PHY_M_LED_MO_1000(MO_LED_OFF) |
2804 PHY_M_LED_MO_RX(MO_LED_OFF));
2809 /* blink LED's for finding board */
2810 static int sky2_phys_id(struct net_device *dev, u32 data)
2812 struct sky2_port *sky2 = netdev_priv(dev);
2813 struct sky2_hw *hw = sky2->hw;
2814 unsigned port = sky2->port;
2815 u16 ledctrl, ledover = 0;
2820 if (!data || data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ))
2821 ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT);
2825 /* save initial values */
2826 spin_lock_bh(&sky2->phy_lock);
2827 if (hw->chip_id == CHIP_ID_YUKON_XL) {
2828 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
2829 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
2830 ledctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
2831 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
2833 ledctrl = gm_phy_read(hw, port, PHY_MARV_LED_CTRL);
2834 ledover = gm_phy_read(hw, port, PHY_MARV_LED_OVER);
2838 while (!interrupted && ms > 0) {
2839 sky2_led(hw, port, onoff);
2842 spin_unlock_bh(&sky2->phy_lock);
2843 interrupted = msleep_interruptible(250);
2844 spin_lock_bh(&sky2->phy_lock);
2849 /* resume regularly scheduled programming */
2850 if (hw->chip_id == CHIP_ID_YUKON_XL) {
2851 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
2852 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
2853 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ledctrl);
2854 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
2856 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
2857 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
2859 spin_unlock_bh(&sky2->phy_lock);
2864 static void sky2_get_pauseparam(struct net_device *dev,
2865 struct ethtool_pauseparam *ecmd)
2867 struct sky2_port *sky2 = netdev_priv(dev);
2869 ecmd->tx_pause = sky2->tx_pause;
2870 ecmd->rx_pause = sky2->rx_pause;
2871 ecmd->autoneg = sky2->autoneg;
2874 static int sky2_set_pauseparam(struct net_device *dev,
2875 struct ethtool_pauseparam *ecmd)
2877 struct sky2_port *sky2 = netdev_priv(dev);
2880 sky2->autoneg = ecmd->autoneg;
2881 sky2->tx_pause = ecmd->tx_pause != 0;
2882 sky2->rx_pause = ecmd->rx_pause != 0;
2884 sky2_phy_reinit(sky2);
2889 static int sky2_get_coalesce(struct net_device *dev,
2890 struct ethtool_coalesce *ecmd)
2892 struct sky2_port *sky2 = netdev_priv(dev);
2893 struct sky2_hw *hw = sky2->hw;
2895 if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_STOP)
2896 ecmd->tx_coalesce_usecs = 0;
2898 u32 clks = sky2_read32(hw, STAT_TX_TIMER_INI);
2899 ecmd->tx_coalesce_usecs = sky2_clk2us(hw, clks);
2901 ecmd->tx_max_coalesced_frames = sky2_read16(hw, STAT_TX_IDX_TH);
2903 if (sky2_read8(hw, STAT_LEV_TIMER_CTRL) == TIM_STOP)
2904 ecmd->rx_coalesce_usecs = 0;
2906 u32 clks = sky2_read32(hw, STAT_LEV_TIMER_INI);
2907 ecmd->rx_coalesce_usecs = sky2_clk2us(hw, clks);
2909 ecmd->rx_max_coalesced_frames = sky2_read8(hw, STAT_FIFO_WM);
2911 if (sky2_read8(hw, STAT_ISR_TIMER_CTRL) == TIM_STOP)
2912 ecmd->rx_coalesce_usecs_irq = 0;
2914 u32 clks = sky2_read32(hw, STAT_ISR_TIMER_INI);
2915 ecmd->rx_coalesce_usecs_irq = sky2_clk2us(hw, clks);
2918 ecmd->rx_max_coalesced_frames_irq = sky2_read8(hw, STAT_FIFO_ISR_WM);
2923 /* Note: this affect both ports */
2924 static int sky2_set_coalesce(struct net_device *dev,
2925 struct ethtool_coalesce *ecmd)
2927 struct sky2_port *sky2 = netdev_priv(dev);
2928 struct sky2_hw *hw = sky2->hw;
2929 const u32 tmax = sky2_clk2us(hw, 0x0ffffff);
2931 if (ecmd->tx_coalesce_usecs > tmax ||
2932 ecmd->rx_coalesce_usecs > tmax ||
2933 ecmd->rx_coalesce_usecs_irq > tmax)
2936 if (ecmd->tx_max_coalesced_frames >= TX_RING_SIZE-1)
2938 if (ecmd->rx_max_coalesced_frames > RX_MAX_PENDING)
2940 if (ecmd->rx_max_coalesced_frames_irq >RX_MAX_PENDING)
2943 if (ecmd->tx_coalesce_usecs == 0)
2944 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
2946 sky2_write32(hw, STAT_TX_TIMER_INI,
2947 sky2_us2clk(hw, ecmd->tx_coalesce_usecs));
2948 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
2950 sky2_write16(hw, STAT_TX_IDX_TH, ecmd->tx_max_coalesced_frames);
2952 if (ecmd->rx_coalesce_usecs == 0)
2953 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_STOP);
2955 sky2_write32(hw, STAT_LEV_TIMER_INI,
2956 sky2_us2clk(hw, ecmd->rx_coalesce_usecs));
2957 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
2959 sky2_write8(hw, STAT_FIFO_WM, ecmd->rx_max_coalesced_frames);
2961 if (ecmd->rx_coalesce_usecs_irq == 0)
2962 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_STOP);
2964 sky2_write32(hw, STAT_ISR_TIMER_INI,
2965 sky2_us2clk(hw, ecmd->rx_coalesce_usecs_irq));
2966 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
2968 sky2_write8(hw, STAT_FIFO_ISR_WM, ecmd->rx_max_coalesced_frames_irq);
2972 static void sky2_get_ringparam(struct net_device *dev,
2973 struct ethtool_ringparam *ering)
2975 struct sky2_port *sky2 = netdev_priv(dev);
2977 ering->rx_max_pending = RX_MAX_PENDING;
2978 ering->rx_mini_max_pending = 0;
2979 ering->rx_jumbo_max_pending = 0;
2980 ering->tx_max_pending = TX_RING_SIZE - 1;
2982 ering->rx_pending = sky2->rx_pending;
2983 ering->rx_mini_pending = 0;
2984 ering->rx_jumbo_pending = 0;
2985 ering->tx_pending = sky2->tx_pending;
2988 static int sky2_set_ringparam(struct net_device *dev,
2989 struct ethtool_ringparam *ering)
2991 struct sky2_port *sky2 = netdev_priv(dev);
2994 if (ering->rx_pending > RX_MAX_PENDING ||
2995 ering->rx_pending < 8 ||
2996 ering->tx_pending < MAX_SKB_TX_LE ||
2997 ering->tx_pending > TX_RING_SIZE - 1)
3000 if (netif_running(dev))
3003 sky2->rx_pending = ering->rx_pending;
3004 sky2->tx_pending = ering->tx_pending;
3006 if (netif_running(dev)) {
3011 sky2_set_multicast(dev);
3017 static int sky2_get_regs_len(struct net_device *dev)
3023 * Returns copy of control register region
3024 * Note: access to the RAM address register set will cause timeouts.
3026 static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs,
3029 const struct sky2_port *sky2 = netdev_priv(dev);
3030 const void __iomem *io = sky2->hw->regs;
3032 BUG_ON(regs->len < B3_RI_WTO_R1);
3034 memset(p, 0, regs->len);
3036 memcpy_fromio(p, io, B3_RAM_ADDR);
3038 memcpy_fromio(p + B3_RI_WTO_R1,
3040 regs->len - B3_RI_WTO_R1);
3043 static struct ethtool_ops sky2_ethtool_ops = {
3044 .get_settings = sky2_get_settings,
3045 .set_settings = sky2_set_settings,
3046 .get_drvinfo = sky2_get_drvinfo,
3047 .get_msglevel = sky2_get_msglevel,
3048 .set_msglevel = sky2_set_msglevel,
3049 .nway_reset = sky2_nway_reset,
3050 .get_regs_len = sky2_get_regs_len,
3051 .get_regs = sky2_get_regs,
3052 .get_link = ethtool_op_get_link,
3053 .get_sg = ethtool_op_get_sg,
3054 .set_sg = ethtool_op_set_sg,
3055 .get_tx_csum = ethtool_op_get_tx_csum,
3056 .set_tx_csum = ethtool_op_set_tx_csum,
3057 .get_tso = ethtool_op_get_tso,
3058 .set_tso = ethtool_op_set_tso,
3059 .get_rx_csum = sky2_get_rx_csum,
3060 .set_rx_csum = sky2_set_rx_csum,
3061 .get_strings = sky2_get_strings,
3062 .get_coalesce = sky2_get_coalesce,
3063 .set_coalesce = sky2_set_coalesce,
3064 .get_ringparam = sky2_get_ringparam,
3065 .set_ringparam = sky2_set_ringparam,
3066 .get_pauseparam = sky2_get_pauseparam,
3067 .set_pauseparam = sky2_set_pauseparam,
3068 .phys_id = sky2_phys_id,
3069 .get_stats_count = sky2_get_stats_count,
3070 .get_ethtool_stats = sky2_get_ethtool_stats,
3071 .get_perm_addr = ethtool_op_get_perm_addr,
3074 /* Initialize network device */
3075 static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
3076 unsigned port, int highmem)
3078 struct sky2_port *sky2;
3079 struct net_device *dev = alloc_etherdev(sizeof(*sky2));
3082 printk(KERN_ERR "sky2 etherdev alloc failed");
3086 SET_MODULE_OWNER(dev);
3087 SET_NETDEV_DEV(dev, &hw->pdev->dev);
3088 dev->irq = hw->pdev->irq;
3089 dev->open = sky2_up;
3090 dev->stop = sky2_down;
3091 dev->do_ioctl = sky2_ioctl;
3092 dev->hard_start_xmit = sky2_xmit_frame;
3093 dev->get_stats = sky2_get_stats;
3094 dev->set_multicast_list = sky2_set_multicast;
3095 dev->set_mac_address = sky2_set_mac_address;
3096 dev->change_mtu = sky2_change_mtu;
3097 SET_ETHTOOL_OPS(dev, &sky2_ethtool_ops);
3098 dev->tx_timeout = sky2_tx_timeout;
3099 dev->watchdog_timeo = TX_WATCHDOG;
3101 dev->poll = sky2_poll;
3102 dev->weight = NAPI_WEIGHT;
3103 #ifdef CONFIG_NET_POLL_CONTROLLER
3104 dev->poll_controller = sky2_netpoll;
3107 sky2 = netdev_priv(dev);
3110 sky2->msg_enable = netif_msg_init(debug, default_msg);
3112 spin_lock_init(&sky2->tx_lock);
3113 /* Auto speed and flow control */
3114 sky2->autoneg = AUTONEG_ENABLE;
3119 sky2->advertising = sky2_supported_modes(hw);
3122 spin_lock_init(&sky2->phy_lock);
3123 sky2->tx_pending = TX_DEF_PENDING;
3124 sky2->rx_pending = RX_DEF_PENDING;
3125 sky2->rx_bufsize = sky2_buf_size(ETH_DATA_LEN);
3127 hw->dev[port] = dev;
3131 dev->features |= NETIF_F_LLTX;
3132 if (hw->chip_id != CHIP_ID_YUKON_EC_U)
3133 dev->features |= NETIF_F_TSO;
3135 dev->features |= NETIF_F_HIGHDMA;
3136 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
3138 #ifdef SKY2_VLAN_TAG_USED
3139 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
3140 dev->vlan_rx_register = sky2_vlan_rx_register;
3141 dev->vlan_rx_kill_vid = sky2_vlan_rx_kill_vid;
3144 /* read the mac address */
3145 memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN);
3146 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
3148 /* device is off until link detection */
3149 netif_carrier_off(dev);
3150 netif_stop_queue(dev);
3155 static void __devinit sky2_show_addr(struct net_device *dev)
3157 const struct sky2_port *sky2 = netdev_priv(dev);
3159 if (netif_msg_probe(sky2))
3160 printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
3162 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
3163 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
3166 /* Handle software interrupt used during MSI test */
3167 static irqreturn_t __devinit sky2_test_intr(int irq, void *dev_id,
3168 struct pt_regs *regs)
3170 struct sky2_hw *hw = dev_id;
3171 u32 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
3176 if (status & Y2_IS_IRQ_SW) {
3177 hw->msi_detected = 1;
3178 wake_up(&hw->msi_wait);
3179 sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
3181 sky2_write32(hw, B0_Y2_SP_ICR, 2);
3186 /* Test interrupt path by forcing a a software IRQ */
3187 static int __devinit sky2_test_msi(struct sky2_hw *hw)
3189 struct pci_dev *pdev = hw->pdev;
3192 init_waitqueue_head (&hw->msi_wait);
3194 sky2_write32(hw, B0_IMSK, Y2_IS_IRQ_SW);
3196 err = request_irq(pdev->irq, sky2_test_intr, IRQF_SHARED, DRV_NAME, hw);
3198 printk(KERN_ERR PFX "%s: cannot assign irq %d\n",
3199 pci_name(pdev), pdev->irq);
3203 sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ);
3204 sky2_read8(hw, B0_CTST);
3206 wait_event_timeout(hw->msi_wait, hw->msi_detected, HZ/10);
3208 if (!hw->msi_detected) {
3209 /* MSI test failed, go back to INTx mode */
3210 printk(KERN_WARNING PFX "%s: No interrupt was generated using MSI, "
3211 "switching to INTx mode. Please report this failure to "
3212 "the PCI maintainer and include system chipset information.\n",
3216 sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
3219 sky2_write32(hw, B0_IMSK, 0);
3221 free_irq(pdev->irq, hw);
3226 static int __devinit sky2_probe(struct pci_dev *pdev,
3227 const struct pci_device_id *ent)
3229 struct net_device *dev, *dev1 = NULL;
3231 int err, pm_cap, using_dac = 0;
3233 err = pci_enable_device(pdev);
3235 printk(KERN_ERR PFX "%s cannot enable PCI device\n",
3240 err = pci_request_regions(pdev, DRV_NAME);
3242 printk(KERN_ERR PFX "%s cannot obtain PCI resources\n",
3247 pci_set_master(pdev);
3249 /* Find power-management capability. */
3250 pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
3252 printk(KERN_ERR PFX "Cannot find PowerManagement capability, "
3255 goto err_out_free_regions;
3258 if (sizeof(dma_addr_t) > sizeof(u32) &&
3259 !(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) {
3261 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
3263 printk(KERN_ERR PFX "%s unable to obtain 64 bit DMA "
3264 "for consistent allocations\n", pci_name(pdev));
3265 goto err_out_free_regions;
3269 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
3271 printk(KERN_ERR PFX "%s no usable DMA configuration\n",
3273 goto err_out_free_regions;
3278 hw = kzalloc(sizeof(*hw), GFP_KERNEL);
3280 printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n",
3282 goto err_out_free_regions;
3287 hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
3289 printk(KERN_ERR PFX "%s: cannot map device registers\n",
3291 goto err_out_free_hw;
3293 hw->pm_cap = pm_cap;
3296 /* byte swap descriptors in hardware */
3300 reg = sky2_pci_read32(hw, PCI_DEV_REG2);
3301 reg |= PCI_REV_DESC;
3302 sky2_pci_write32(hw, PCI_DEV_REG2, reg);
3306 /* ring for status responses */
3307 hw->st_le = pci_alloc_consistent(hw->pdev, STATUS_LE_BYTES,
3310 goto err_out_iounmap;
3312 err = sky2_reset(hw);
3314 goto err_out_iounmap;
3316 printk(KERN_INFO PFX "v%s addr 0x%llx irq %d Yukon-%s (0x%x) rev %d\n",
3317 DRV_VERSION, (unsigned long long)pci_resource_start(pdev, 0),
3318 pdev->irq, yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL],
3319 hw->chip_id, hw->chip_rev);
3321 dev = sky2_init_netdev(hw, 0, using_dac);
3323 goto err_out_free_pci;
3325 err = register_netdev(dev);
3327 printk(KERN_ERR PFX "%s: cannot register net device\n",
3329 goto err_out_free_netdev;
3332 sky2_show_addr(dev);
3334 if (hw->ports > 1 && (dev1 = sky2_init_netdev(hw, 1, using_dac))) {
3335 if (register_netdev(dev1) == 0)
3336 sky2_show_addr(dev1);
3338 /* Failure to register second port need not be fatal */
3339 printk(KERN_WARNING PFX
3340 "register of second port failed\n");
3346 if (!disable_msi && pci_enable_msi(pdev) == 0) {
3347 err = sky2_test_msi(hw);
3348 if (err == -EOPNOTSUPP)
3349 pci_disable_msi(pdev);
3351 goto err_out_unregister;
3354 err = request_irq(pdev->irq, sky2_intr, IRQF_SHARED, DRV_NAME, hw);
3356 printk(KERN_ERR PFX "%s: cannot assign irq %d\n",
3357 pci_name(pdev), pdev->irq);
3358 goto err_out_unregister;
3361 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
3363 setup_timer(&hw->idle_timer, sky2_idle, (unsigned long) hw);
3364 sky2_idle_start(hw);
3366 pci_set_drvdata(pdev, hw);
3371 pci_disable_msi(pdev);
3373 unregister_netdev(dev1);
3376 unregister_netdev(dev);
3377 err_out_free_netdev:
3380 sky2_write8(hw, B0_CTST, CS_RST_SET);
3381 pci_free_consistent(hw->pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
3386 err_out_free_regions:
3387 pci_release_regions(pdev);
3388 pci_disable_device(pdev);
3393 static void __devexit sky2_remove(struct pci_dev *pdev)
3395 struct sky2_hw *hw = pci_get_drvdata(pdev);
3396 struct net_device *dev0, *dev1;
3401 del_timer_sync(&hw->idle_timer);
3403 sky2_write32(hw, B0_IMSK, 0);
3404 synchronize_irq(hw->pdev->irq);
3409 unregister_netdev(dev1);
3410 unregister_netdev(dev0);
3412 sky2_set_power_state(hw, PCI_D3hot);
3413 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
3414 sky2_write8(hw, B0_CTST, CS_RST_SET);
3415 sky2_read8(hw, B0_CTST);
3417 free_irq(pdev->irq, hw);
3418 pci_disable_msi(pdev);
3419 pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
3420 pci_release_regions(pdev);
3421 pci_disable_device(pdev);
3429 pci_set_drvdata(pdev, NULL);
3433 static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
3435 struct sky2_hw *hw = pci_get_drvdata(pdev);
3437 pci_power_t pstate = pci_choose_state(pdev, state);
3439 if (!(pstate == PCI_D3hot || pstate == PCI_D3cold))
3442 del_timer_sync(&hw->idle_timer);
3443 netif_poll_disable(hw->dev[0]);
3445 for (i = 0; i < hw->ports; i++) {
3446 struct net_device *dev = hw->dev[i];
3448 if (netif_running(dev)) {
3450 netif_device_detach(dev);
3454 sky2_write32(hw, B0_IMSK, 0);
3455 pci_save_state(pdev);
3456 sky2_set_power_state(hw, pstate);
3460 static int sky2_resume(struct pci_dev *pdev)
3462 struct sky2_hw *hw = pci_get_drvdata(pdev);
3465 pci_restore_state(pdev);
3466 pci_enable_wake(pdev, PCI_D0, 0);
3467 sky2_set_power_state(hw, PCI_D0);
3469 err = sky2_reset(hw);
3473 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
3475 for (i = 0; i < hw->ports; i++) {
3476 struct net_device *dev = hw->dev[i];
3477 if (netif_running(dev)) {
3478 netif_device_attach(dev);
3482 printk(KERN_ERR PFX "%s: could not up: %d\n",
3490 netif_poll_enable(hw->dev[0]);
3491 sky2_idle_start(hw);
3497 static struct pci_driver sky2_driver = {
3499 .id_table = sky2_id_table,
3500 .probe = sky2_probe,
3501 .remove = __devexit_p(sky2_remove),
3503 .suspend = sky2_suspend,
3504 .resume = sky2_resume,
3508 static int __init sky2_init_module(void)
3510 return pci_register_driver(&sky2_driver);
3513 static void __exit sky2_cleanup_module(void)
3515 pci_unregister_driver(&sky2_driver);
3518 module_init(sky2_init_module);
3519 module_exit(sky2_cleanup_module);
3521 MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver");
3522 MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>");
3523 MODULE_LICENSE("GPL");
3524 MODULE_VERSION(DRV_VERSION);