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.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <linux/crc32.h>
26 #include <linux/kernel.h>
27 #include <linux/version.h>
28 #include <linux/module.h>
29 #include <linux/netdevice.h>
30 #include <linux/dma-mapping.h>
31 #include <linux/etherdevice.h>
32 #include <linux/ethtool.h>
33 #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/debugfs.h>
43 #include <linux/mii.h>
47 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
48 #define SKY2_VLAN_TAG_USED 1
53 #define DRV_NAME "sky2"
54 #define DRV_VERSION "1.15"
55 #define PFX DRV_NAME " "
58 * The Yukon II chipset takes 64 bit command blocks (called list elements)
59 * that are organized into three (receive, transmit, status) different rings
63 #define RX_LE_SIZE 1024
64 #define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le))
65 #define RX_MAX_PENDING (RX_LE_SIZE/6 - 2)
66 #define RX_DEF_PENDING RX_MAX_PENDING
67 #define RX_SKB_ALIGN 8
69 #define TX_RING_SIZE 512
70 #define TX_DEF_PENDING (TX_RING_SIZE - 1)
71 #define TX_MIN_PENDING 64
72 #define MAX_SKB_TX_LE (4 + (sizeof(dma_addr_t)/sizeof(u32))*MAX_SKB_FRAGS)
74 #define STATUS_RING_SIZE 2048 /* 2 ports * (TX + 2*RX) */
75 #define STATUS_LE_BYTES (STATUS_RING_SIZE*sizeof(struct sky2_status_le))
76 #define TX_WATCHDOG (5 * HZ)
77 #define NAPI_WEIGHT 64
78 #define PHY_RETRIES 1000
80 #define RING_NEXT(x,s) (((x)+1) & ((s)-1))
82 static const u32 default_msg =
83 NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
84 | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
85 | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
87 static int debug = -1; /* defaults above */
88 module_param(debug, int, 0);
89 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
91 static int copybreak __read_mostly = 128;
92 module_param(copybreak, int, 0);
93 MODULE_PARM_DESC(copybreak, "Receive copy threshold");
95 static int disable_msi = 0;
96 module_param(disable_msi, int, 0);
97 MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
99 static int idle_timeout = 100;
100 module_param(idle_timeout, int, 0);
101 MODULE_PARM_DESC(idle_timeout, "Watchdog timer for lost interrupts (ms)");
103 static const struct pci_device_id sky2_id_table[] = {
104 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, /* SK-9Sxx */
105 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */
106 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) }, /* DGE-560T */
107 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4001) }, /* DGE-550SX */
108 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B02) }, /* DGE-560SX */
109 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B03) }, /* DGE-550T */
110 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4340) }, /* 88E8021 */
111 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4341) }, /* 88E8022 */
112 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4342) }, /* 88E8061 */
113 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4343) }, /* 88E8062 */
114 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4344) }, /* 88E8021 */
115 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4345) }, /* 88E8022 */
116 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4346) }, /* 88E8061 */
117 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4347) }, /* 88E8062 */
118 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4350) }, /* 88E8035 */
119 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) }, /* 88E8036 */
120 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) }, /* 88E8038 */
121 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4353) }, /* 88E8039 */
122 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4356) }, /* 88EC033 */
123 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) }, /* 88E8052 */
124 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) }, /* 88E8050 */
125 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) }, /* 88E8053 */
126 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) }, /* 88E8055 */
127 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4364) }, /* 88E8056 */
128 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4366) }, /* 88EC036 */
129 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4367) }, /* 88EC032 */
130 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) }, /* 88EC034 */
131 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4369) }, /* 88EC042 */
132 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436A) }, /* 88E8058 */
133 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436B) }, /* 88E8071 */
137 MODULE_DEVICE_TABLE(pci, sky2_id_table);
139 /* Avoid conditionals by using array */
140 static const unsigned txqaddr[] = { Q_XA1, Q_XA2 };
141 static const unsigned rxqaddr[] = { Q_R1, Q_R2 };
142 static const u32 portirq_msk[] = { Y2_IS_PORT_1, Y2_IS_PORT_2 };
144 /* This driver supports yukon2 chipset only */
145 static const char *yukon2_name[] = {
147 "EC Ultra", /* 0xb4 */
148 "Extreme", /* 0xb5 */
153 /* Access to external PHY */
154 static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val)
158 gma_write16(hw, port, GM_SMI_DATA, val);
159 gma_write16(hw, port, GM_SMI_CTRL,
160 GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) | GM_SMI_CT_REG_AD(reg));
162 for (i = 0; i < PHY_RETRIES; i++) {
163 if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
168 printk(KERN_WARNING PFX "%s: phy write timeout\n", hw->dev[port]->name);
172 static int __gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg, u16 *val)
176 gma_write16(hw, port, GM_SMI_CTRL, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV)
177 | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
179 for (i = 0; i < PHY_RETRIES; i++) {
180 if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) {
181 *val = gma_read16(hw, port, GM_SMI_DATA);
191 static u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg)
195 if (__gm_phy_read(hw, port, reg, &v) != 0)
196 printk(KERN_WARNING PFX "%s: phy read timeout\n", hw->dev[port]->name);
201 static void sky2_power_on(struct sky2_hw *hw)
203 /* switch power to VCC (WA for VAUX problem) */
204 sky2_write8(hw, B0_POWER_CTRL,
205 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
207 /* disable Core Clock Division, */
208 sky2_write32(hw, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS);
210 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
211 /* enable bits are inverted */
212 sky2_write8(hw, B2_Y2_CLK_GATE,
213 Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
214 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
215 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
217 sky2_write8(hw, B2_Y2_CLK_GATE, 0);
219 if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) {
222 reg = sky2_pci_read32(hw, PCI_DEV_REG4);
223 /* set all bits to 0 except bits 15..12 and 8 */
224 reg &= P_ASPM_CONTROL_MSK;
225 sky2_pci_write32(hw, PCI_DEV_REG4, reg);
227 reg = sky2_pci_read32(hw, PCI_DEV_REG5);
228 /* set all bits to 0 except bits 28 & 27 */
229 reg &= P_CTL_TIM_VMAIN_AV_MSK;
230 sky2_pci_write32(hw, PCI_DEV_REG5, reg);
232 sky2_pci_write32(hw, PCI_CFG_REG_1, 0);
234 /* Enable workaround for dev 4.107 on Yukon-Ultra & Extreme */
235 reg = sky2_read32(hw, B2_GP_IO);
236 reg |= GLB_GPIO_STAT_RACE_DIS;
237 sky2_write32(hw, B2_GP_IO, reg);
241 static void sky2_power_aux(struct sky2_hw *hw)
243 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
244 sky2_write8(hw, B2_Y2_CLK_GATE, 0);
246 /* enable bits are inverted */
247 sky2_write8(hw, B2_Y2_CLK_GATE,
248 Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
249 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
250 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
252 /* switch power to VAUX */
253 if (sky2_read16(hw, B0_CTST) & Y2_VAUX_AVAIL)
254 sky2_write8(hw, B0_POWER_CTRL,
255 (PC_VAUX_ENA | PC_VCC_ENA |
256 PC_VAUX_ON | PC_VCC_OFF));
259 static void sky2_gmac_reset(struct sky2_hw *hw, unsigned port)
263 /* disable all GMAC IRQ's */
264 sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
265 /* disable PHY IRQs */
266 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
268 gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
269 gma_write16(hw, port, GM_MC_ADDR_H2, 0);
270 gma_write16(hw, port, GM_MC_ADDR_H3, 0);
271 gma_write16(hw, port, GM_MC_ADDR_H4, 0);
273 reg = gma_read16(hw, port, GM_RX_CTRL);
274 reg |= GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA;
275 gma_write16(hw, port, GM_RX_CTRL, reg);
278 /* flow control to advertise bits */
279 static const u16 copper_fc_adv[] = {
281 [FC_TX] = PHY_M_AN_ASP,
282 [FC_RX] = PHY_M_AN_PC,
283 [FC_BOTH] = PHY_M_AN_PC | PHY_M_AN_ASP,
286 /* flow control to advertise bits when using 1000BaseX */
287 static const u16 fiber_fc_adv[] = {
288 [FC_BOTH] = PHY_M_P_BOTH_MD_X,
289 [FC_TX] = PHY_M_P_ASYM_MD_X,
290 [FC_RX] = PHY_M_P_SYM_MD_X,
291 [FC_NONE] = PHY_M_P_NO_PAUSE_X,
294 /* flow control to GMA disable bits */
295 static const u16 gm_fc_disable[] = {
296 [FC_NONE] = GM_GPCR_FC_RX_DIS | GM_GPCR_FC_TX_DIS,
297 [FC_TX] = GM_GPCR_FC_RX_DIS,
298 [FC_RX] = GM_GPCR_FC_TX_DIS,
303 static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
305 struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
306 u16 ctrl, ct1000, adv, pg, ledctrl, ledover, reg;
308 if (sky2->autoneg == AUTONEG_ENABLE
309 && !(hw->chip_id == CHIP_ID_YUKON_XL
310 || hw->chip_id == CHIP_ID_YUKON_EC_U
311 || hw->chip_id == CHIP_ID_YUKON_EX)) {
312 u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
314 ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
316 ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
318 /* on PHY 88E1040 Rev.D0 (and newer) downshift control changed */
319 if (hw->chip_id == CHIP_ID_YUKON_EC)
320 /* set downshift counter to 3x and enable downshift */
321 ectrl |= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA;
323 /* set master & slave downshift counter to 1x */
324 ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
326 gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
329 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
330 if (sky2_is_copper(hw)) {
331 if (hw->chip_id == CHIP_ID_YUKON_FE) {
332 /* enable automatic crossover */
333 ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1;
335 /* disable energy detect */
336 ctrl &= ~PHY_M_PC_EN_DET_MSK;
338 /* enable automatic crossover */
339 ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO);
341 /* downshift on PHY 88E1112 and 88E1149 is changed */
342 if (sky2->autoneg == AUTONEG_ENABLE
343 && (hw->chip_id == CHIP_ID_YUKON_XL
344 || hw->chip_id == CHIP_ID_YUKON_EC_U
345 || hw->chip_id == CHIP_ID_YUKON_EX)) {
346 /* set downshift counter to 3x and enable downshift */
347 ctrl &= ~PHY_M_PC_DSC_MSK;
348 ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA;
352 /* workaround for deviation #4.88 (CRC errors) */
353 /* disable Automatic Crossover */
355 ctrl &= ~PHY_M_PC_MDIX_MSK;
358 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
360 /* special setup for PHY 88E1112 Fiber */
361 if (hw->chip_id == CHIP_ID_YUKON_XL && !sky2_is_copper(hw)) {
362 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
364 /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */
365 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
366 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
367 ctrl &= ~PHY_M_MAC_MD_MSK;
368 ctrl |= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX);
369 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
371 if (hw->pmd_type == 'P') {
372 /* select page 1 to access Fiber registers */
373 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 1);
375 /* for SFP-module set SIGDET polarity to low */
376 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
377 ctrl |= PHY_M_FIB_SIGD_POL;
378 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
381 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
389 if (sky2->autoneg == AUTONEG_ENABLE) {
390 if (sky2_is_copper(hw)) {
391 if (sky2->advertising & ADVERTISED_1000baseT_Full)
392 ct1000 |= PHY_M_1000C_AFD;
393 if (sky2->advertising & ADVERTISED_1000baseT_Half)
394 ct1000 |= PHY_M_1000C_AHD;
395 if (sky2->advertising & ADVERTISED_100baseT_Full)
396 adv |= PHY_M_AN_100_FD;
397 if (sky2->advertising & ADVERTISED_100baseT_Half)
398 adv |= PHY_M_AN_100_HD;
399 if (sky2->advertising & ADVERTISED_10baseT_Full)
400 adv |= PHY_M_AN_10_FD;
401 if (sky2->advertising & ADVERTISED_10baseT_Half)
402 adv |= PHY_M_AN_10_HD;
404 adv |= copper_fc_adv[sky2->flow_mode];
405 } else { /* special defines for FIBER (88E1040S only) */
406 if (sky2->advertising & ADVERTISED_1000baseT_Full)
407 adv |= PHY_M_AN_1000X_AFD;
408 if (sky2->advertising & ADVERTISED_1000baseT_Half)
409 adv |= PHY_M_AN_1000X_AHD;
411 adv |= fiber_fc_adv[sky2->flow_mode];
414 /* Restart Auto-negotiation */
415 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
417 /* forced speed/duplex settings */
418 ct1000 = PHY_M_1000C_MSE;
420 /* Disable auto update for duplex flow control and speed */
421 reg |= GM_GPCR_AU_ALL_DIS;
423 switch (sky2->speed) {
425 ctrl |= PHY_CT_SP1000;
426 reg |= GM_GPCR_SPEED_1000;
429 ctrl |= PHY_CT_SP100;
430 reg |= GM_GPCR_SPEED_100;
434 if (sky2->duplex == DUPLEX_FULL) {
435 reg |= GM_GPCR_DUP_FULL;
436 ctrl |= PHY_CT_DUP_MD;
437 } else if (sky2->speed < SPEED_1000)
438 sky2->flow_mode = FC_NONE;
441 reg |= gm_fc_disable[sky2->flow_mode];
443 /* Forward pause packets to GMAC? */
444 if (sky2->flow_mode & FC_RX)
445 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
447 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
450 gma_write16(hw, port, GM_GP_CTRL, reg);
452 if (hw->chip_id != CHIP_ID_YUKON_FE)
453 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
455 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
456 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
458 /* Setup Phy LED's */
459 ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS);
462 switch (hw->chip_id) {
463 case CHIP_ID_YUKON_FE:
464 /* on 88E3082 these bits are at 11..9 (shifted left) */
465 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1;
467 ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR);
469 /* delete ACT LED control bits */
470 ctrl &= ~PHY_M_FELP_LED1_MSK;
471 /* change ACT LED control to blink mode */
472 ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL);
473 gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
476 case CHIP_ID_YUKON_XL:
477 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
479 /* select page 3 to access LED control register */
480 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
482 /* set LED Function Control register */
483 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
484 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
485 PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */
486 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
487 PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */
489 /* set Polarity Control register */
490 gm_phy_write(hw, port, PHY_MARV_PHY_STAT,
491 (PHY_M_POLC_LS1_P_MIX(4) |
492 PHY_M_POLC_IS0_P_MIX(4) |
493 PHY_M_POLC_LOS_CTRL(2) |
494 PHY_M_POLC_INIT_CTRL(2) |
495 PHY_M_POLC_STA1_CTRL(2) |
496 PHY_M_POLC_STA0_CTRL(2)));
498 /* restore page register */
499 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
502 case CHIP_ID_YUKON_EC_U:
503 case CHIP_ID_YUKON_EX:
504 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
506 /* select page 3 to access LED control register */
507 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
509 /* set LED Function Control register */
510 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
511 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
512 PHY_M_LEDC_INIT_CTRL(8) | /* 10 Mbps */
513 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
514 PHY_M_LEDC_STA0_CTRL(7)));/* 1000 Mbps */
516 /* set Blink Rate in LED Timer Control Register */
517 gm_phy_write(hw, port, PHY_MARV_INT_MASK,
518 ledctrl | PHY_M_LED_BLINK_RT(BLINK_84MS));
519 /* restore page register */
520 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
524 /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
525 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
526 /* turn off the Rx LED (LED_RX) */
527 ledover &= ~PHY_M_LED_MO_RX;
530 if (hw->chip_id == CHIP_ID_YUKON_EC_U &&
531 hw->chip_rev == CHIP_REV_YU_EC_U_A1) {
532 /* apply fixes in PHY AFE */
533 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 255);
535 /* increase differential signal amplitude in 10BASE-T */
536 gm_phy_write(hw, port, 0x18, 0xaa99);
537 gm_phy_write(hw, port, 0x17, 0x2011);
539 /* fix for IEEE A/B Symmetry failure in 1000BASE-T */
540 gm_phy_write(hw, port, 0x18, 0xa204);
541 gm_phy_write(hw, port, 0x17, 0x2002);
543 /* set page register to 0 */
544 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
545 } else if (hw->chip_id != CHIP_ID_YUKON_EX) {
546 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
548 if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) {
549 /* turn on 100 Mbps LED (LED_LINK100) */
550 ledover |= PHY_M_LED_MO_100;
554 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
558 /* Enable phy interrupt on auto-negotiation complete (or link up) */
559 if (sky2->autoneg == AUTONEG_ENABLE)
560 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL);
562 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
565 static void sky2_phy_power(struct sky2_hw *hw, unsigned port, int onoff)
568 static const u32 phy_power[]
569 = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD };
571 /* looks like this XL is back asswards .. */
572 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
575 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
576 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
578 /* Turn off phy power saving */
579 reg1 &= ~phy_power[port];
581 reg1 |= phy_power[port];
583 sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
584 sky2_pci_read32(hw, PCI_DEV_REG1);
585 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
589 /* Force a renegotiation */
590 static void sky2_phy_reinit(struct sky2_port *sky2)
592 spin_lock_bh(&sky2->phy_lock);
593 sky2_phy_init(sky2->hw, sky2->port);
594 spin_unlock_bh(&sky2->phy_lock);
597 /* Put device in state to listen for Wake On Lan */
598 static void sky2_wol_init(struct sky2_port *sky2)
600 struct sky2_hw *hw = sky2->hw;
601 unsigned port = sky2->port;
602 enum flow_control save_mode;
606 /* Bring hardware out of reset */
607 sky2_write16(hw, B0_CTST, CS_RST_CLR);
608 sky2_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR);
610 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
611 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
614 * sky2_reset will re-enable on resume
616 save_mode = sky2->flow_mode;
617 ctrl = sky2->advertising;
619 sky2->advertising &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full);
620 sky2->flow_mode = FC_NONE;
621 sky2_phy_power(hw, port, 1);
622 sky2_phy_reinit(sky2);
624 sky2->flow_mode = save_mode;
625 sky2->advertising = ctrl;
627 /* Set GMAC to no flow control and auto update for speed/duplex */
628 gma_write16(hw, port, GM_GP_CTRL,
629 GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA|
630 GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS);
632 /* Set WOL address */
633 memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR),
634 sky2->netdev->dev_addr, ETH_ALEN);
636 /* Turn on appropriate WOL control bits */
637 sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT);
639 if (sky2->wol & WAKE_PHY)
640 ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT;
642 ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT;
644 if (sky2->wol & WAKE_MAGIC)
645 ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT;
647 ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;;
649 ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT;
650 sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl);
652 /* Turn on legacy PCI-Express PME mode */
653 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
654 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
655 reg1 |= PCI_Y2_PME_LEGACY;
656 sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
657 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
660 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
664 static void sky2_set_tx_stfwd(struct sky2_hw *hw, unsigned port)
666 if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev != CHIP_REV_YU_EX_A0) {
667 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
669 (hw->dev[port]->mtu > ETH_DATA_LEN) ? TX_JUMBO_ENA : TX_JUMBO_DIS);
671 if (hw->dev[port]->mtu > ETH_DATA_LEN) {
672 /* set Tx GMAC FIFO Almost Empty Threshold */
673 sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
674 (ECU_JUMBO_WM << 16) | ECU_AE_THR);
676 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
677 TX_JUMBO_ENA | TX_STFW_DIS);
679 /* Can't do offload because of lack of store/forward */
680 hw->dev[port]->features &= ~(NETIF_F_TSO | NETIF_F_SG
683 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
684 TX_JUMBO_DIS | TX_STFW_ENA);
688 static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
690 struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
693 const u8 *addr = hw->dev[port]->dev_addr;
695 sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
696 sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
698 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
700 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 && port == 1) {
701 /* WA DEV_472 -- looks like crossed wires on port 2 */
702 /* clear GMAC 1 Control reset */
703 sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR);
705 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET);
706 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR);
707 } while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL ||
708 gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 ||
709 gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0);
712 sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
714 /* Enable Transmit FIFO Underrun */
715 sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
717 spin_lock_bh(&sky2->phy_lock);
718 sky2_phy_init(hw, port);
719 spin_unlock_bh(&sky2->phy_lock);
722 reg = gma_read16(hw, port, GM_PHY_ADDR);
723 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
725 for (i = GM_MIB_CNT_BASE; i <= GM_MIB_CNT_END; i += 4)
726 gma_read16(hw, port, i);
727 gma_write16(hw, port, GM_PHY_ADDR, reg);
729 /* transmit control */
730 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
732 /* receive control reg: unicast + multicast + no FCS */
733 gma_write16(hw, port, GM_RX_CTRL,
734 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
736 /* transmit flow control */
737 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
739 /* transmit parameter */
740 gma_write16(hw, port, GM_TX_PARAM,
741 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
742 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
743 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) |
744 TX_BACK_OFF_LIM(TX_BOF_LIM_DEF));
746 /* serial mode register */
747 reg = DATA_BLIND_VAL(DATA_BLIND_DEF) |
748 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
750 if (hw->dev[port]->mtu > ETH_DATA_LEN)
751 reg |= GM_SMOD_JUMBO_ENA;
753 gma_write16(hw, port, GM_SERIAL_MODE, reg);
755 /* virtual address for data */
756 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
758 /* physical address: used for pause frames */
759 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
761 /* ignore counter overflows */
762 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
763 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
764 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
766 /* Configure Rx MAC FIFO */
767 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
768 reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
769 if (hw->chip_id == CHIP_ID_YUKON_EX)
770 reg |= GMF_RX_OVER_ON;
772 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), reg);
774 /* Flush Rx MAC FIFO on any flow control or error */
775 sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);
777 /* Set threshold to 0xa (64 bytes) + 1 to workaround pause bug */
778 sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1);
780 /* Configure Tx MAC FIFO */
781 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
782 sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
784 if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) {
785 sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8);
786 sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8);
788 sky2_set_tx_stfwd(hw, port);
793 /* Assign Ram Buffer allocation to queue */
794 static void sky2_ramset(struct sky2_hw *hw, u16 q, u32 start, u32 space)
798 /* convert from K bytes to qwords used for hw register */
801 end = start + space - 1;
803 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
804 sky2_write32(hw, RB_ADDR(q, RB_START), start);
805 sky2_write32(hw, RB_ADDR(q, RB_END), end);
806 sky2_write32(hw, RB_ADDR(q, RB_WP), start);
807 sky2_write32(hw, RB_ADDR(q, RB_RP), start);
809 if (q == Q_R1 || q == Q_R2) {
810 u32 tp = space - space/4;
812 /* On receive queue's set the thresholds
813 * give receiver priority when > 3/4 full
814 * send pause when down to 2K
816 sky2_write32(hw, RB_ADDR(q, RB_RX_UTHP), tp);
817 sky2_write32(hw, RB_ADDR(q, RB_RX_LTHP), space/2);
820 sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp);
821 sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4);
823 /* Enable store & forward on Tx queue's because
824 * Tx FIFO is only 1K on Yukon
826 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
829 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
830 sky2_read8(hw, RB_ADDR(q, RB_CTRL));
833 /* Setup Bus Memory Interface */
834 static void sky2_qset(struct sky2_hw *hw, u16 q)
836 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET);
837 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT);
838 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON);
839 sky2_write32(hw, Q_ADDR(q, Q_WM), BMU_WM_DEFAULT);
842 /* Setup prefetch unit registers. This is the interface between
843 * hardware and driver list elements
845 static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr,
848 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
849 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR);
850 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), addr >> 32);
851 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), (u32) addr);
852 sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last);
853 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON);
855 sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL));
858 static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2)
860 struct sky2_tx_le *le = sky2->tx_le + sky2->tx_prod;
862 sky2->tx_prod = RING_NEXT(sky2->tx_prod, TX_RING_SIZE);
867 static inline struct tx_ring_info *tx_le_re(struct sky2_port *sky2,
868 struct sky2_tx_le *le)
870 return sky2->tx_ring + (le - sky2->tx_le);
873 /* Update chip's next pointer */
874 static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, u16 idx)
876 /* Make sure write' to descriptors are complete before we tell hardware */
878 sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx);
880 /* Synchronize I/O on since next processor may write to tail */
885 static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2)
887 struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put;
888 sky2->rx_put = RING_NEXT(sky2->rx_put, RX_LE_SIZE);
893 /* Return high part of DMA address (could be 32 or 64 bit) */
894 static inline u32 high32(dma_addr_t a)
896 return sizeof(a) > sizeof(u32) ? (a >> 16) >> 16 : 0;
899 /* Build description to hardware for one receive segment */
900 static void sky2_rx_add(struct sky2_port *sky2, u8 op,
901 dma_addr_t map, unsigned len)
903 struct sky2_rx_le *le;
904 u32 hi = high32(map);
906 if (sky2->rx_addr64 != hi) {
907 le = sky2_next_rx(sky2);
908 le->addr = cpu_to_le32(hi);
909 le->opcode = OP_ADDR64 | HW_OWNER;
910 sky2->rx_addr64 = high32(map + len);
913 le = sky2_next_rx(sky2);
914 le->addr = cpu_to_le32((u32) map);
915 le->length = cpu_to_le16(len);
916 le->opcode = op | HW_OWNER;
919 /* Build description to hardware for one possibly fragmented skb */
920 static void sky2_rx_submit(struct sky2_port *sky2,
921 const struct rx_ring_info *re)
925 sky2_rx_add(sky2, OP_PACKET, re->data_addr, sky2->rx_data_size);
927 for (i = 0; i < skb_shinfo(re->skb)->nr_frags; i++)
928 sky2_rx_add(sky2, OP_BUFFER, re->frag_addr[i], PAGE_SIZE);
932 static void sky2_rx_map_skb(struct pci_dev *pdev, struct rx_ring_info *re,
935 struct sk_buff *skb = re->skb;
938 re->data_addr = pci_map_single(pdev, skb->data, size, PCI_DMA_FROMDEVICE);
939 pci_unmap_len_set(re, data_size, size);
941 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
942 re->frag_addr[i] = pci_map_page(pdev,
943 skb_shinfo(skb)->frags[i].page,
944 skb_shinfo(skb)->frags[i].page_offset,
945 skb_shinfo(skb)->frags[i].size,
949 static void sky2_rx_unmap_skb(struct pci_dev *pdev, struct rx_ring_info *re)
951 struct sk_buff *skb = re->skb;
954 pci_unmap_single(pdev, re->data_addr, pci_unmap_len(re, data_size),
957 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
958 pci_unmap_page(pdev, re->frag_addr[i],
959 skb_shinfo(skb)->frags[i].size,
963 /* Tell chip where to start receive checksum.
964 * Actually has two checksums, but set both same to avoid possible byte
967 static void rx_set_checksum(struct sky2_port *sky2)
969 struct sky2_rx_le *le;
971 if (sky2->hw->chip_id != CHIP_ID_YUKON_EX) {
972 le = sky2_next_rx(sky2);
973 le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN);
975 le->opcode = OP_TCPSTART | HW_OWNER;
977 sky2_write32(sky2->hw,
978 Q_ADDR(rxqaddr[sky2->port], Q_CSR),
979 sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
985 * The RX Stop command will not work for Yukon-2 if the BMU does not
986 * reach the end of packet and since we can't make sure that we have
987 * incoming data, we must reset the BMU while it is not doing a DMA
988 * transfer. Since it is possible that the RX path is still active,
989 * the RX RAM buffer will be stopped first, so any possible incoming
990 * data will not trigger a DMA. After the RAM buffer is stopped, the
991 * BMU is polled until any DMA in progress is ended and only then it
994 static void sky2_rx_stop(struct sky2_port *sky2)
996 struct sky2_hw *hw = sky2->hw;
997 unsigned rxq = rxqaddr[sky2->port];
1000 /* disable the RAM Buffer receive queue */
1001 sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD);
1003 for (i = 0; i < 0xffff; i++)
1004 if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL))
1005 == sky2_read8(hw, RB_ADDR(rxq, Q_RL)))
1008 printk(KERN_WARNING PFX "%s: receiver stop failed\n",
1009 sky2->netdev->name);
1011 sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST);
1013 /* reset the Rx prefetch unit */
1014 sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
1018 /* Clean out receive buffer area, assumes receiver hardware stopped */
1019 static void sky2_rx_clean(struct sky2_port *sky2)
1023 memset(sky2->rx_le, 0, RX_LE_BYTES);
1024 for (i = 0; i < sky2->rx_pending; i++) {
1025 struct rx_ring_info *re = sky2->rx_ring + i;
1028 sky2_rx_unmap_skb(sky2->hw->pdev, re);
1035 /* Basic MII support */
1036 static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
1038 struct mii_ioctl_data *data = if_mii(ifr);
1039 struct sky2_port *sky2 = netdev_priv(dev);
1040 struct sky2_hw *hw = sky2->hw;
1041 int err = -EOPNOTSUPP;
1043 if (!netif_running(dev))
1044 return -ENODEV; /* Phy still in reset */
1048 data->phy_id = PHY_ADDR_MARV;
1054 spin_lock_bh(&sky2->phy_lock);
1055 err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val);
1056 spin_unlock_bh(&sky2->phy_lock);
1058 data->val_out = val;
1063 if (!capable(CAP_NET_ADMIN))
1066 spin_lock_bh(&sky2->phy_lock);
1067 err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f,
1069 spin_unlock_bh(&sky2->phy_lock);
1075 #ifdef SKY2_VLAN_TAG_USED
1076 static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
1078 struct sky2_port *sky2 = netdev_priv(dev);
1079 struct sky2_hw *hw = sky2->hw;
1080 u16 port = sky2->port;
1082 netif_tx_lock_bh(dev);
1083 netif_poll_disable(sky2->hw->dev[0]);
1087 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
1089 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
1092 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
1094 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
1098 netif_poll_enable(sky2->hw->dev[0]);
1099 netif_tx_unlock_bh(dev);
1104 * Allocate an skb for receiving. If the MTU is large enough
1105 * make the skb non-linear with a fragment list of pages.
1107 * It appears the hardware has a bug in the FIFO logic that
1108 * cause it to hang if the FIFO gets overrun and the receive buffer
1109 * is not 64 byte aligned. The buffer returned from netdev_alloc_skb is
1110 * aligned except if slab debugging is enabled.
1112 static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2)
1114 struct sk_buff *skb;
1118 skb = netdev_alloc_skb(sky2->netdev, sky2->rx_data_size + RX_SKB_ALIGN);
1122 p = (unsigned long) skb->data;
1123 skb_reserve(skb, ALIGN(p, RX_SKB_ALIGN) - p);
1125 for (i = 0; i < sky2->rx_nfrags; i++) {
1126 struct page *page = alloc_page(GFP_ATOMIC);
1130 skb_fill_page_desc(skb, i, page, 0, PAGE_SIZE);
1140 static inline void sky2_rx_update(struct sky2_port *sky2, unsigned rxq)
1142 sky2_put_idx(sky2->hw, rxq, sky2->rx_put);
1146 * Allocate and setup receiver buffer pool.
1147 * Normal case this ends up creating one list element for skb
1148 * in the receive ring. Worst case if using large MTU and each
1149 * allocation falls on a different 64 bit region, that results
1150 * in 6 list elements per ring entry.
1151 * One element is used for checksum enable/disable, and one
1152 * extra to avoid wrap.
1154 static int sky2_rx_start(struct sky2_port *sky2)
1156 struct sky2_hw *hw = sky2->hw;
1157 struct rx_ring_info *re;
1158 unsigned rxq = rxqaddr[sky2->port];
1159 unsigned i, size, space, thresh;
1161 sky2->rx_put = sky2->rx_next = 0;
1164 /* On PCI express lowering the watermark gives better performance */
1165 if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP))
1166 sky2_write32(hw, Q_ADDR(rxq, Q_WM), BMU_WM_PEX);
1168 /* These chips have no ram buffer?
1169 * MAC Rx RAM Read is controlled by hardware */
1170 if (hw->chip_id == CHIP_ID_YUKON_EC_U &&
1171 (hw->chip_rev == CHIP_REV_YU_EC_U_A1
1172 || hw->chip_rev == CHIP_REV_YU_EC_U_B0))
1173 sky2_write32(hw, Q_ADDR(rxq, Q_TEST), F_M_RX_RAM_DIS);
1175 sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1);
1177 rx_set_checksum(sky2);
1179 /* Space needed for frame data + headers rounded up */
1180 size = ALIGN(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8)
1183 /* Stopping point for hardware truncation */
1184 thresh = (size - 8) / sizeof(u32);
1186 /* Account for overhead of skb - to avoid order > 0 allocation */
1187 space = SKB_DATA_ALIGN(size) + NET_SKB_PAD
1188 + sizeof(struct skb_shared_info);
1190 sky2->rx_nfrags = space >> PAGE_SHIFT;
1191 BUG_ON(sky2->rx_nfrags > ARRAY_SIZE(re->frag_addr));
1193 if (sky2->rx_nfrags != 0) {
1194 /* Compute residue after pages */
1195 space = sky2->rx_nfrags << PAGE_SHIFT;
1202 /* Optimize to handle small packets and headers */
1203 if (size < copybreak)
1205 if (size < ETH_HLEN)
1208 sky2->rx_data_size = size;
1211 for (i = 0; i < sky2->rx_pending; i++) {
1212 re = sky2->rx_ring + i;
1214 re->skb = sky2_rx_alloc(sky2);
1218 sky2_rx_map_skb(hw->pdev, re, sky2->rx_data_size);
1219 sky2_rx_submit(sky2, re);
1223 * The receiver hangs if it receives frames larger than the
1224 * packet buffer. As a workaround, truncate oversize frames, but
1225 * the register is limited to 9 bits, so if you do frames > 2052
1226 * you better get the MTU right!
1229 sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_OFF);
1231 sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), thresh);
1232 sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON);
1235 /* Tell chip about available buffers */
1236 sky2_rx_update(sky2, rxq);
1239 sky2_rx_clean(sky2);
1243 /* Bring up network interface. */
1244 static int sky2_up(struct net_device *dev)
1246 struct sky2_port *sky2 = netdev_priv(dev);
1247 struct sky2_hw *hw = sky2->hw;
1248 unsigned port = sky2->port;
1250 int cap, err = -ENOMEM;
1251 struct net_device *otherdev = hw->dev[sky2->port^1];
1254 * On dual port PCI-X card, there is an problem where status
1255 * can be received out of order due to split transactions
1257 if (otherdev && netif_running(otherdev) &&
1258 (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) {
1259 struct sky2_port *osky2 = netdev_priv(otherdev);
1262 cmd = sky2_pci_read16(hw, cap + PCI_X_CMD);
1263 cmd &= ~PCI_X_CMD_MAX_SPLIT;
1264 sky2_pci_write16(hw, cap + PCI_X_CMD, cmd);
1270 if (netif_msg_ifup(sky2))
1271 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
1273 netif_carrier_off(dev);
1275 /* must be power of 2 */
1276 sky2->tx_le = pci_alloc_consistent(hw->pdev,
1278 sizeof(struct sky2_tx_le),
1283 sky2->tx_ring = kcalloc(TX_RING_SIZE, sizeof(struct tx_ring_info),
1287 sky2->tx_prod = sky2->tx_cons = 0;
1289 sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES,
1293 memset(sky2->rx_le, 0, RX_LE_BYTES);
1295 sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct rx_ring_info),
1300 sky2_phy_power(hw, port, 1);
1302 sky2_mac_init(hw, port);
1304 /* Register is number of 4K blocks on internal RAM buffer. */
1305 ramsize = sky2_read8(hw, B2_E_0) * 4;
1306 printk(KERN_INFO PFX "%s: ram buffer %dK\n", dev->name, ramsize);
1312 rxspace = ramsize / 2;
1314 rxspace = 8 + (2*(ramsize - 16))/3;
1316 sky2_ramset(hw, rxqaddr[port], 0, rxspace);
1317 sky2_ramset(hw, txqaddr[port], rxspace, ramsize - rxspace);
1319 /* Make sure SyncQ is disabled */
1320 sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL),
1324 sky2_qset(hw, txqaddr[port]);
1326 /* This is copied from sk98lin 10.0.5.3; no one tells me about erratta's */
1327 if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev == CHIP_REV_YU_EX_B0)
1328 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_TEST), F_TX_CHK_AUTO_OFF);
1330 /* Set almost empty threshold */
1331 if (hw->chip_id == CHIP_ID_YUKON_EC_U
1332 && hw->chip_rev == CHIP_REV_YU_EC_U_A0)
1333 sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), ECU_TXFF_LEV);
1335 sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map,
1338 err = sky2_rx_start(sky2);
1342 /* Enable interrupts from phy/mac for port */
1343 imask = sky2_read32(hw, B0_IMSK);
1344 imask |= portirq_msk[port];
1345 sky2_write32(hw, B0_IMSK, imask);
1351 pci_free_consistent(hw->pdev, RX_LE_BYTES,
1352 sky2->rx_le, sky2->rx_le_map);
1356 pci_free_consistent(hw->pdev,
1357 TX_RING_SIZE * sizeof(struct sky2_tx_le),
1358 sky2->tx_le, sky2->tx_le_map);
1361 kfree(sky2->tx_ring);
1362 kfree(sky2->rx_ring);
1364 sky2->tx_ring = NULL;
1365 sky2->rx_ring = NULL;
1369 /* Modular subtraction in ring */
1370 static inline int tx_dist(unsigned tail, unsigned head)
1372 return (head - tail) & (TX_RING_SIZE - 1);
1375 /* Number of list elements available for next tx */
1376 static inline int tx_avail(const struct sky2_port *sky2)
1378 return sky2->tx_pending - tx_dist(sky2->tx_cons, sky2->tx_prod);
1381 /* Estimate of number of transmit list elements required */
1382 static unsigned tx_le_req(const struct sk_buff *skb)
1386 count = sizeof(dma_addr_t) / sizeof(u32);
1387 count += skb_shinfo(skb)->nr_frags * count;
1389 if (skb_is_gso(skb))
1392 if (skb->ip_summed == CHECKSUM_PARTIAL)
1399 * Put one packet in ring for transmit.
1400 * A single packet can generate multiple list elements, and
1401 * the number of ring elements will probably be less than the number
1402 * of list elements used.
1404 static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
1406 struct sky2_port *sky2 = netdev_priv(dev);
1407 struct sky2_hw *hw = sky2->hw;
1408 struct sky2_tx_le *le = NULL;
1409 struct tx_ring_info *re;
1416 if (unlikely(tx_avail(sky2) < tx_le_req(skb)))
1417 return NETDEV_TX_BUSY;
1419 if (unlikely(netif_msg_tx_queued(sky2)))
1420 printk(KERN_DEBUG "%s: tx queued, slot %u, len %d\n",
1421 dev->name, sky2->tx_prod, skb->len);
1423 len = skb_headlen(skb);
1424 mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
1425 addr64 = high32(mapping);
1427 /* Send high bits if changed or crosses boundary */
1428 if (addr64 != sky2->tx_addr64 || high32(mapping + len) != sky2->tx_addr64) {
1429 le = get_tx_le(sky2);
1430 le->addr = cpu_to_le32(addr64);
1431 le->opcode = OP_ADDR64 | HW_OWNER;
1432 sky2->tx_addr64 = high32(mapping + len);
1435 /* Check for TCP Segmentation Offload */
1436 mss = skb_shinfo(skb)->gso_size;
1438 if (hw->chip_id != CHIP_ID_YUKON_EX)
1439 mss += ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb);
1441 if (mss != sky2->tx_last_mss) {
1442 le = get_tx_le(sky2);
1443 le->addr = cpu_to_le32(mss);
1444 if (hw->chip_id == CHIP_ID_YUKON_EX)
1445 le->opcode = OP_MSS | HW_OWNER;
1447 le->opcode = OP_LRGLEN | HW_OWNER;
1448 sky2->tx_last_mss = mss;
1453 #ifdef SKY2_VLAN_TAG_USED
1454 /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */
1455 if (sky2->vlgrp && vlan_tx_tag_present(skb)) {
1457 le = get_tx_le(sky2);
1459 le->opcode = OP_VLAN|HW_OWNER;
1461 le->opcode |= OP_VLAN;
1462 le->length = cpu_to_be16(vlan_tx_tag_get(skb));
1467 /* Handle TCP checksum offload */
1468 if (skb->ip_summed == CHECKSUM_PARTIAL) {
1469 /* On Yukon EX (some versions) encoding change. */
1470 if (hw->chip_id == CHIP_ID_YUKON_EX
1471 && hw->chip_rev != CHIP_REV_YU_EX_B0)
1472 ctrl |= CALSUM; /* auto checksum */
1474 const unsigned offset = skb_transport_offset(skb);
1477 tcpsum = offset << 16; /* sum start */
1478 tcpsum |= offset + skb->csum_offset; /* sum write */
1480 ctrl |= CALSUM | WR_SUM | INIT_SUM | LOCK_SUM;
1481 if (ip_hdr(skb)->protocol == IPPROTO_UDP)
1484 if (tcpsum != sky2->tx_tcpsum) {
1485 sky2->tx_tcpsum = tcpsum;
1487 le = get_tx_le(sky2);
1488 le->addr = cpu_to_le32(tcpsum);
1489 le->length = 0; /* initial checksum value */
1490 le->ctrl = 1; /* one packet */
1491 le->opcode = OP_TCPLISW | HW_OWNER;
1496 le = get_tx_le(sky2);
1497 le->addr = cpu_to_le32((u32) mapping);
1498 le->length = cpu_to_le16(len);
1500 le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER);
1502 re = tx_le_re(sky2, le);
1504 pci_unmap_addr_set(re, mapaddr, mapping);
1505 pci_unmap_len_set(re, maplen, len);
1507 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
1508 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1510 mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset,
1511 frag->size, PCI_DMA_TODEVICE);
1512 addr64 = high32(mapping);
1513 if (addr64 != sky2->tx_addr64) {
1514 le = get_tx_le(sky2);
1515 le->addr = cpu_to_le32(addr64);
1517 le->opcode = OP_ADDR64 | HW_OWNER;
1518 sky2->tx_addr64 = addr64;
1521 le = get_tx_le(sky2);
1522 le->addr = cpu_to_le32((u32) mapping);
1523 le->length = cpu_to_le16(frag->size);
1525 le->opcode = OP_BUFFER | HW_OWNER;
1527 re = tx_le_re(sky2, le);
1529 pci_unmap_addr_set(re, mapaddr, mapping);
1530 pci_unmap_len_set(re, maplen, frag->size);
1535 if (tx_avail(sky2) <= MAX_SKB_TX_LE)
1536 netif_stop_queue(dev);
1538 sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod);
1540 dev->trans_start = jiffies;
1541 return NETDEV_TX_OK;
1545 * Free ring elements from starting at tx_cons until "done"
1547 * NB: the hardware will tell us about partial completion of multi-part
1548 * buffers so make sure not to free skb to early.
1550 static void sky2_tx_complete(struct sky2_port *sky2, u16 done)
1552 struct net_device *dev = sky2->netdev;
1553 struct pci_dev *pdev = sky2->hw->pdev;
1556 BUG_ON(done >= TX_RING_SIZE);
1558 for (idx = sky2->tx_cons; idx != done;
1559 idx = RING_NEXT(idx, TX_RING_SIZE)) {
1560 struct sky2_tx_le *le = sky2->tx_le + idx;
1561 struct tx_ring_info *re = sky2->tx_ring + idx;
1563 switch(le->opcode & ~HW_OWNER) {
1566 pci_unmap_single(pdev,
1567 pci_unmap_addr(re, mapaddr),
1568 pci_unmap_len(re, maplen),
1572 pci_unmap_page(pdev, pci_unmap_addr(re, mapaddr),
1573 pci_unmap_len(re, maplen),
1578 if (le->ctrl & EOP) {
1579 if (unlikely(netif_msg_tx_done(sky2)))
1580 printk(KERN_DEBUG "%s: tx done %u\n",
1583 sky2->net_stats.tx_packets++;
1584 sky2->net_stats.tx_bytes += re->skb->len;
1586 dev_kfree_skb_any(re->skb);
1587 sky2->tx_next = RING_NEXT(idx, TX_RING_SIZE);
1591 sky2->tx_cons = idx;
1594 if (tx_avail(sky2) > MAX_SKB_TX_LE + 4)
1595 netif_wake_queue(dev);
1598 /* Cleanup all untransmitted buffers, assume transmitter not running */
1599 static void sky2_tx_clean(struct net_device *dev)
1601 struct sky2_port *sky2 = netdev_priv(dev);
1603 netif_tx_lock_bh(dev);
1604 sky2_tx_complete(sky2, sky2->tx_prod);
1605 netif_tx_unlock_bh(dev);
1608 /* Network shutdown */
1609 static int sky2_down(struct net_device *dev)
1611 struct sky2_port *sky2 = netdev_priv(dev);
1612 struct sky2_hw *hw = sky2->hw;
1613 unsigned port = sky2->port;
1617 /* Never really got started! */
1621 if (netif_msg_ifdown(sky2))
1622 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
1624 /* Stop more packets from being queued */
1625 netif_stop_queue(dev);
1627 /* Disable port IRQ */
1628 imask = sky2_read32(hw, B0_IMSK);
1629 imask &= ~portirq_msk[port];
1630 sky2_write32(hw, B0_IMSK, imask);
1632 sky2_gmac_reset(hw, port);
1634 /* Stop transmitter */
1635 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP);
1636 sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR));
1638 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
1639 RB_RST_SET | RB_DIS_OP_MD);
1641 ctrl = gma_read16(hw, port, GM_GP_CTRL);
1642 ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA);
1643 gma_write16(hw, port, GM_GP_CTRL, ctrl);
1645 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
1647 /* Workaround shared GMAC reset */
1648 if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0
1649 && port == 0 && hw->dev[1] && netif_running(hw->dev[1])))
1650 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
1652 /* Disable Force Sync bit and Enable Alloc bit */
1653 sky2_write8(hw, SK_REG(port, TXA_CTRL),
1654 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
1656 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
1657 sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
1658 sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
1660 /* Reset the PCI FIFO of the async Tx queue */
1661 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR),
1662 BMU_RST_SET | BMU_FIFO_RST);
1664 /* Reset the Tx prefetch units */
1665 sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL),
1668 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
1672 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
1673 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
1675 sky2_phy_power(hw, port, 0);
1677 netif_carrier_off(dev);
1679 /* turn off LED's */
1680 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
1682 synchronize_irq(hw->pdev->irq);
1685 sky2_rx_clean(sky2);
1687 pci_free_consistent(hw->pdev, RX_LE_BYTES,
1688 sky2->rx_le, sky2->rx_le_map);
1689 kfree(sky2->rx_ring);
1691 pci_free_consistent(hw->pdev,
1692 TX_RING_SIZE * sizeof(struct sky2_tx_le),
1693 sky2->tx_le, sky2->tx_le_map);
1694 kfree(sky2->tx_ring);
1699 sky2->rx_ring = NULL;
1700 sky2->tx_ring = NULL;
1705 static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux)
1707 if (!sky2_is_copper(hw))
1710 if (hw->chip_id == CHIP_ID_YUKON_FE)
1711 return (aux & PHY_M_PS_SPEED_100) ? SPEED_100 : SPEED_10;
1713 switch (aux & PHY_M_PS_SPEED_MSK) {
1714 case PHY_M_PS_SPEED_1000:
1716 case PHY_M_PS_SPEED_100:
1723 static void sky2_link_up(struct sky2_port *sky2)
1725 struct sky2_hw *hw = sky2->hw;
1726 unsigned port = sky2->port;
1728 static const char *fc_name[] = {
1736 reg = gma_read16(hw, port, GM_GP_CTRL);
1737 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
1738 gma_write16(hw, port, GM_GP_CTRL, reg);
1740 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
1742 netif_carrier_on(sky2->netdev);
1744 /* Turn on link LED */
1745 sky2_write8(hw, SK_REG(port, LNK_LED_REG),
1746 LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF);
1748 if (hw->chip_id == CHIP_ID_YUKON_XL
1749 || hw->chip_id == CHIP_ID_YUKON_EC_U
1750 || hw->chip_id == CHIP_ID_YUKON_EX) {
1751 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
1752 u16 led = PHY_M_LEDC_LOS_CTRL(1); /* link active */
1754 switch(sky2->speed) {
1756 led |= PHY_M_LEDC_INIT_CTRL(7);
1760 led |= PHY_M_LEDC_STA1_CTRL(7);
1764 led |= PHY_M_LEDC_STA0_CTRL(7);
1768 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
1769 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, led);
1770 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
1773 if (netif_msg_link(sky2))
1774 printk(KERN_INFO PFX
1775 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
1776 sky2->netdev->name, sky2->speed,
1777 sky2->duplex == DUPLEX_FULL ? "full" : "half",
1778 fc_name[sky2->flow_status]);
1781 static void sky2_link_down(struct sky2_port *sky2)
1783 struct sky2_hw *hw = sky2->hw;
1784 unsigned port = sky2->port;
1787 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
1789 reg = gma_read16(hw, port, GM_GP_CTRL);
1790 reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
1791 gma_write16(hw, port, GM_GP_CTRL, reg);
1793 netif_carrier_off(sky2->netdev);
1795 /* Turn on link LED */
1796 sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
1798 if (netif_msg_link(sky2))
1799 printk(KERN_INFO PFX "%s: Link is down.\n", sky2->netdev->name);
1801 sky2_phy_init(hw, port);
1804 static enum flow_control sky2_flow(int rx, int tx)
1807 return tx ? FC_BOTH : FC_RX;
1809 return tx ? FC_TX : FC_NONE;
1812 static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux)
1814 struct sky2_hw *hw = sky2->hw;
1815 unsigned port = sky2->port;
1818 advert = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV);
1819 lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP);
1820 if (lpa & PHY_M_AN_RF) {
1821 printk(KERN_ERR PFX "%s: remote fault", sky2->netdev->name);
1825 if (!(aux & PHY_M_PS_SPDUP_RES)) {
1826 printk(KERN_ERR PFX "%s: speed/duplex mismatch",
1827 sky2->netdev->name);
1831 sky2->speed = sky2_phy_speed(hw, aux);
1832 sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
1834 /* Since the pause result bits seem to in different positions on
1835 * different chips. look at registers.
1837 if (!sky2_is_copper(hw)) {
1838 /* Shift for bits in fiber PHY */
1839 advert &= ~(ADVERTISE_PAUSE_CAP|ADVERTISE_PAUSE_ASYM);
1840 lpa &= ~(LPA_PAUSE_CAP|LPA_PAUSE_ASYM);
1842 if (advert & ADVERTISE_1000XPAUSE)
1843 advert |= ADVERTISE_PAUSE_CAP;
1844 if (advert & ADVERTISE_1000XPSE_ASYM)
1845 advert |= ADVERTISE_PAUSE_ASYM;
1846 if (lpa & LPA_1000XPAUSE)
1847 lpa |= LPA_PAUSE_CAP;
1848 if (lpa & LPA_1000XPAUSE_ASYM)
1849 lpa |= LPA_PAUSE_ASYM;
1852 sky2->flow_status = FC_NONE;
1853 if (advert & ADVERTISE_PAUSE_CAP) {
1854 if (lpa & LPA_PAUSE_CAP)
1855 sky2->flow_status = FC_BOTH;
1856 else if (advert & ADVERTISE_PAUSE_ASYM)
1857 sky2->flow_status = FC_RX;
1858 } else if (advert & ADVERTISE_PAUSE_ASYM) {
1859 if ((lpa & LPA_PAUSE_CAP) && (lpa & LPA_PAUSE_ASYM))
1860 sky2->flow_status = FC_TX;
1863 if (sky2->duplex == DUPLEX_HALF && sky2->speed < SPEED_1000
1864 && !(hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX))
1865 sky2->flow_status = FC_NONE;
1867 if (sky2->flow_status & FC_TX)
1868 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
1870 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1875 /* Interrupt from PHY */
1876 static void sky2_phy_intr(struct sky2_hw *hw, unsigned port)
1878 struct net_device *dev = hw->dev[port];
1879 struct sky2_port *sky2 = netdev_priv(dev);
1880 u16 istatus, phystat;
1882 if (!netif_running(dev))
1885 spin_lock(&sky2->phy_lock);
1886 istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
1887 phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
1889 if (netif_msg_intr(sky2))
1890 printk(KERN_INFO PFX "%s: phy interrupt status 0x%x 0x%x\n",
1891 sky2->netdev->name, istatus, phystat);
1893 if (sky2->autoneg == AUTONEG_ENABLE && (istatus & PHY_M_IS_AN_COMPL)) {
1894 if (sky2_autoneg_done(sky2, phystat) == 0)
1899 if (istatus & PHY_M_IS_LSP_CHANGE)
1900 sky2->speed = sky2_phy_speed(hw, phystat);
1902 if (istatus & PHY_M_IS_DUP_CHANGE)
1904 (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
1906 if (istatus & PHY_M_IS_LST_CHANGE) {
1907 if (phystat & PHY_M_PS_LINK_UP)
1910 sky2_link_down(sky2);
1913 spin_unlock(&sky2->phy_lock);
1916 /* Transmit timeout is only called if we are running, carrier is up
1917 * and tx queue is full (stopped).
1919 static void sky2_tx_timeout(struct net_device *dev)
1921 struct sky2_port *sky2 = netdev_priv(dev);
1922 struct sky2_hw *hw = sky2->hw;
1924 if (netif_msg_timer(sky2))
1925 printk(KERN_ERR PFX "%s: tx timeout\n", dev->name);
1927 printk(KERN_DEBUG PFX "%s: transmit ring %u .. %u report=%u done=%u\n",
1928 dev->name, sky2->tx_cons, sky2->tx_prod,
1929 sky2_read16(hw, sky2->port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX),
1930 sky2_read16(hw, Q_ADDR(txqaddr[sky2->port], Q_DONE)));
1932 /* can't restart safely under softirq */
1933 schedule_work(&hw->restart_work);
1936 static int sky2_change_mtu(struct net_device *dev, int new_mtu)
1938 struct sky2_port *sky2 = netdev_priv(dev);
1939 struct sky2_hw *hw = sky2->hw;
1940 unsigned port = sky2->port;
1945 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
1948 if (new_mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_FE)
1951 if (!netif_running(dev)) {
1956 imask = sky2_read32(hw, B0_IMSK);
1957 sky2_write32(hw, B0_IMSK, 0);
1959 dev->trans_start = jiffies; /* prevent tx timeout */
1960 netif_stop_queue(dev);
1961 netif_poll_disable(hw->dev[0]);
1963 synchronize_irq(hw->pdev->irq);
1965 if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX)
1966 sky2_set_tx_stfwd(hw, port);
1968 ctl = gma_read16(hw, port, GM_GP_CTRL);
1969 gma_write16(hw, port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA);
1971 sky2_rx_clean(sky2);
1975 mode = DATA_BLIND_VAL(DATA_BLIND_DEF) |
1976 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
1978 if (dev->mtu > ETH_DATA_LEN)
1979 mode |= GM_SMOD_JUMBO_ENA;
1981 gma_write16(hw, port, GM_SERIAL_MODE, mode);
1983 sky2_write8(hw, RB_ADDR(rxqaddr[port], RB_CTRL), RB_ENA_OP_MD);
1985 err = sky2_rx_start(sky2);
1986 sky2_write32(hw, B0_IMSK, imask);
1991 gma_write16(hw, port, GM_GP_CTRL, ctl);
1993 netif_poll_enable(hw->dev[0]);
1994 netif_wake_queue(dev);
2000 /* For small just reuse existing skb for next receive */
2001 static struct sk_buff *receive_copy(struct sky2_port *sky2,
2002 const struct rx_ring_info *re,
2005 struct sk_buff *skb;
2007 skb = netdev_alloc_skb(sky2->netdev, length + 2);
2009 skb_reserve(skb, 2);
2010 pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->data_addr,
2011 length, PCI_DMA_FROMDEVICE);
2012 skb_copy_from_linear_data(re->skb, skb->data, length);
2013 skb->ip_summed = re->skb->ip_summed;
2014 skb->csum = re->skb->csum;
2015 pci_dma_sync_single_for_device(sky2->hw->pdev, re->data_addr,
2016 length, PCI_DMA_FROMDEVICE);
2017 re->skb->ip_summed = CHECKSUM_NONE;
2018 skb_put(skb, length);
2023 /* Adjust length of skb with fragments to match received data */
2024 static void skb_put_frags(struct sk_buff *skb, unsigned int hdr_space,
2025 unsigned int length)
2030 /* put header into skb */
2031 size = min(length, hdr_space);
2036 num_frags = skb_shinfo(skb)->nr_frags;
2037 for (i = 0; i < num_frags; i++) {
2038 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2041 /* don't need this page */
2042 __free_page(frag->page);
2043 --skb_shinfo(skb)->nr_frags;
2045 size = min(length, (unsigned) PAGE_SIZE);
2048 skb->data_len += size;
2049 skb->truesize += size;
2056 /* Normal packet - take skb from ring element and put in a new one */
2057 static struct sk_buff *receive_new(struct sky2_port *sky2,
2058 struct rx_ring_info *re,
2059 unsigned int length)
2061 struct sk_buff *skb, *nskb;
2062 unsigned hdr_space = sky2->rx_data_size;
2064 pr_debug(PFX "receive new length=%d\n", length);
2066 /* Don't be tricky about reusing pages (yet) */
2067 nskb = sky2_rx_alloc(sky2);
2068 if (unlikely(!nskb))
2072 sky2_rx_unmap_skb(sky2->hw->pdev, re);
2074 prefetch(skb->data);
2076 sky2_rx_map_skb(sky2->hw->pdev, re, hdr_space);
2078 if (skb_shinfo(skb)->nr_frags)
2079 skb_put_frags(skb, hdr_space, length);
2081 skb_put(skb, length);
2086 * Receive one packet.
2087 * For larger packets, get new buffer.
2089 static struct sk_buff *sky2_receive(struct net_device *dev,
2090 u16 length, u32 status)
2092 struct sky2_port *sky2 = netdev_priv(dev);
2093 struct rx_ring_info *re = sky2->rx_ring + sky2->rx_next;
2094 struct sk_buff *skb = NULL;
2096 if (unlikely(netif_msg_rx_status(sky2)))
2097 printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n",
2098 dev->name, sky2->rx_next, status, length);
2100 sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending;
2101 prefetch(sky2->rx_ring + sky2->rx_next);
2103 if (status & GMR_FS_ANY_ERR)
2106 if (!(status & GMR_FS_RX_OK))
2109 if (length < copybreak)
2110 skb = receive_copy(sky2, re, length);
2112 skb = receive_new(sky2, re, length);
2114 sky2_rx_submit(sky2, re);
2119 ++sky2->net_stats.rx_errors;
2120 if (status & GMR_FS_RX_FF_OV) {
2121 sky2->net_stats.rx_over_errors++;
2125 if (netif_msg_rx_err(sky2) && net_ratelimit())
2126 printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n",
2127 dev->name, status, length);
2129 if (status & (GMR_FS_LONG_ERR | GMR_FS_UN_SIZE))
2130 sky2->net_stats.rx_length_errors++;
2131 if (status & GMR_FS_FRAGMENT)
2132 sky2->net_stats.rx_frame_errors++;
2133 if (status & GMR_FS_CRC_ERR)
2134 sky2->net_stats.rx_crc_errors++;
2139 /* Transmit complete */
2140 static inline void sky2_tx_done(struct net_device *dev, u16 last)
2142 struct sky2_port *sky2 = netdev_priv(dev);
2144 if (netif_running(dev)) {
2146 sky2_tx_complete(sky2, last);
2147 netif_tx_unlock(dev);
2151 /* Process status response ring */
2152 static int sky2_status_intr(struct sky2_hw *hw, int to_do)
2155 unsigned rx[2] = { 0, 0 };
2156 u16 hwidx = sky2_read16(hw, STAT_PUT_IDX);
2160 while (hw->st_idx != hwidx) {
2161 struct sky2_port *sky2;
2162 struct sky2_status_le *le = hw->st_le + hw->st_idx;
2163 unsigned port = le->css & CSS_LINK_BIT;
2164 struct net_device *dev;
2165 struct sk_buff *skb;
2169 hw->st_idx = RING_NEXT(hw->st_idx, STATUS_RING_SIZE);
2171 dev = hw->dev[port];
2172 sky2 = netdev_priv(dev);
2173 length = le16_to_cpu(le->length);
2174 status = le32_to_cpu(le->status);
2176 switch (le->opcode & ~HW_OWNER) {
2179 skb = sky2_receive(dev, length, status);
2180 if (unlikely(!skb)) {
2181 sky2->net_stats.rx_dropped++;
2185 /* This chip reports checksum status differently */
2186 if (hw->chip_id == CHIP_ID_YUKON_EX) {
2187 if (sky2->rx_csum &&
2188 (le->css & (CSS_ISIPV4 | CSS_ISIPV6)) &&
2189 (le->css & CSS_TCPUDPCSOK))
2190 skb->ip_summed = CHECKSUM_UNNECESSARY;
2192 skb->ip_summed = CHECKSUM_NONE;
2195 skb->protocol = eth_type_trans(skb, dev);
2196 sky2->net_stats.rx_packets++;
2197 sky2->net_stats.rx_bytes += skb->len;
2198 dev->last_rx = jiffies;
2200 #ifdef SKY2_VLAN_TAG_USED
2201 if (sky2->vlgrp && (status & GMR_FS_VLAN)) {
2202 vlan_hwaccel_receive_skb(skb,
2204 be16_to_cpu(sky2->rx_tag));
2207 netif_receive_skb(skb);
2209 /* Stop after net poll weight */
2210 if (++work_done >= to_do)
2214 #ifdef SKY2_VLAN_TAG_USED
2216 sky2->rx_tag = length;
2220 sky2->rx_tag = length;
2227 if (hw->chip_id == CHIP_ID_YUKON_EX)
2230 /* Both checksum counters are programmed to start at
2231 * the same offset, so unless there is a problem they
2232 * should match. This failure is an early indication that
2233 * hardware receive checksumming won't work.
2235 if (likely(status >> 16 == (status & 0xffff))) {
2236 skb = sky2->rx_ring[sky2->rx_next].skb;
2237 skb->ip_summed = CHECKSUM_COMPLETE;
2238 skb->csum = status & 0xffff;
2240 printk(KERN_NOTICE PFX "%s: hardware receive "
2241 "checksum problem (status = %#x)\n",
2244 sky2_write32(sky2->hw,
2245 Q_ADDR(rxqaddr[port], Q_CSR),
2251 /* TX index reports status for both ports */
2252 BUILD_BUG_ON(TX_RING_SIZE > 0x1000);
2253 sky2_tx_done(hw->dev[0], status & 0xfff);
2255 sky2_tx_done(hw->dev[1],
2256 ((status >> 24) & 0xff)
2257 | (u16)(length & 0xf) << 8);
2261 if (net_ratelimit())
2262 printk(KERN_WARNING PFX
2263 "unknown status opcode 0x%x\n", le->opcode);
2267 /* Fully processed status ring so clear irq */
2268 sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
2272 sky2_rx_update(netdev_priv(hw->dev[0]), Q_R1);
2275 sky2_rx_update(netdev_priv(hw->dev[1]), Q_R2);
2280 static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status)
2282 struct net_device *dev = hw->dev[port];
2284 if (net_ratelimit())
2285 printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n",
2288 if (status & Y2_IS_PAR_RD1) {
2289 if (net_ratelimit())
2290 printk(KERN_ERR PFX "%s: ram data read parity error\n",
2293 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR);
2296 if (status & Y2_IS_PAR_WR1) {
2297 if (net_ratelimit())
2298 printk(KERN_ERR PFX "%s: ram data write parity error\n",
2301 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR);
2304 if (status & Y2_IS_PAR_MAC1) {
2305 if (net_ratelimit())
2306 printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name);
2307 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE);
2310 if (status & Y2_IS_PAR_RX1) {
2311 if (net_ratelimit())
2312 printk(KERN_ERR PFX "%s: RX parity error\n", dev->name);
2313 sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR);
2316 if (status & Y2_IS_TCP_TXA1) {
2317 if (net_ratelimit())
2318 printk(KERN_ERR PFX "%s: TCP segmentation error\n",
2320 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP);
2324 static void sky2_hw_intr(struct sky2_hw *hw)
2326 u32 status = sky2_read32(hw, B0_HWE_ISRC);
2328 if (status & Y2_IS_TIST_OV)
2329 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
2331 if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) {
2334 pci_err = sky2_pci_read16(hw, PCI_STATUS);
2335 if (net_ratelimit())
2336 dev_err(&hw->pdev->dev, "PCI hardware error (0x%x)\n",
2339 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2340 sky2_pci_write16(hw, PCI_STATUS,
2341 pci_err | PCI_STATUS_ERROR_BITS);
2342 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2345 if (status & Y2_IS_PCI_EXP) {
2346 /* PCI-Express uncorrectable Error occurred */
2349 pex_err = sky2_pci_read32(hw, PEX_UNC_ERR_STAT);
2351 if (net_ratelimit())
2352 dev_err(&hw->pdev->dev, "PCI Express error (0x%x)\n",
2355 /* clear the interrupt */
2356 sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2357 sky2_pci_write32(hw, PEX_UNC_ERR_STAT,
2359 sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2361 if (pex_err & PEX_FATAL_ERRORS) {
2362 u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK);
2363 hwmsk &= ~Y2_IS_PCI_EXP;
2364 sky2_write32(hw, B0_HWE_IMSK, hwmsk);
2368 if (status & Y2_HWE_L1_MASK)
2369 sky2_hw_error(hw, 0, status);
2371 if (status & Y2_HWE_L1_MASK)
2372 sky2_hw_error(hw, 1, status);
2375 static void sky2_mac_intr(struct sky2_hw *hw, unsigned port)
2377 struct net_device *dev = hw->dev[port];
2378 struct sky2_port *sky2 = netdev_priv(dev);
2379 u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
2381 if (netif_msg_intr(sky2))
2382 printk(KERN_INFO PFX "%s: mac interrupt status 0x%x\n",
2385 if (status & GM_IS_RX_CO_OV)
2386 gma_read16(hw, port, GM_RX_IRQ_SRC);
2388 if (status & GM_IS_TX_CO_OV)
2389 gma_read16(hw, port, GM_TX_IRQ_SRC);
2391 if (status & GM_IS_RX_FF_OR) {
2392 ++sky2->net_stats.rx_fifo_errors;
2393 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
2396 if (status & GM_IS_TX_FF_UR) {
2397 ++sky2->net_stats.tx_fifo_errors;
2398 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
2402 /* This should never happen it is a bug. */
2403 static void sky2_le_error(struct sky2_hw *hw, unsigned port,
2404 u16 q, unsigned ring_size)
2406 struct net_device *dev = hw->dev[port];
2407 struct sky2_port *sky2 = netdev_priv(dev);
2409 const u64 *le = (q == Q_R1 || q == Q_R2)
2410 ? (u64 *) sky2->rx_le : (u64 *) sky2->tx_le;
2412 idx = sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_GET_IDX));
2413 printk(KERN_ERR PFX "%s: descriptor error q=%#x get=%u [%llx] put=%u\n",
2414 dev->name, (unsigned) q, idx, (unsigned long long) le[idx],
2415 (unsigned) sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX)));
2417 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_IRQ_CHK);
2420 /* If idle then force a fake soft NAPI poll once a second
2421 * to work around cases where sharing an edge triggered interrupt.
2423 static inline void sky2_idle_start(struct sky2_hw *hw)
2425 if (idle_timeout > 0)
2426 mod_timer(&hw->idle_timer,
2427 jiffies + msecs_to_jiffies(idle_timeout));
2430 static void sky2_idle(unsigned long arg)
2432 struct sky2_hw *hw = (struct sky2_hw *) arg;
2433 struct net_device *dev = hw->dev[0];
2435 if (__netif_rx_schedule_prep(dev))
2436 __netif_rx_schedule(dev);
2438 mod_timer(&hw->idle_timer, jiffies + msecs_to_jiffies(idle_timeout));
2441 /* Hardware/software error handling */
2442 static void sky2_err_intr(struct sky2_hw *hw, u32 status)
2444 if (net_ratelimit())
2445 dev_warn(&hw->pdev->dev, "error interrupt status=%#x\n", status);
2447 if (status & Y2_IS_HW_ERR)
2450 if (status & Y2_IS_IRQ_MAC1)
2451 sky2_mac_intr(hw, 0);
2453 if (status & Y2_IS_IRQ_MAC2)
2454 sky2_mac_intr(hw, 1);
2456 if (status & Y2_IS_CHK_RX1)
2457 sky2_le_error(hw, 0, Q_R1, RX_LE_SIZE);
2459 if (status & Y2_IS_CHK_RX2)
2460 sky2_le_error(hw, 1, Q_R2, RX_LE_SIZE);
2462 if (status & Y2_IS_CHK_TXA1)
2463 sky2_le_error(hw, 0, Q_XA1, TX_RING_SIZE);
2465 if (status & Y2_IS_CHK_TXA2)
2466 sky2_le_error(hw, 1, Q_XA2, TX_RING_SIZE);
2469 static int sky2_poll(struct net_device *dev0, int *budget)
2471 struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw;
2473 u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
2475 if (unlikely(status & Y2_IS_ERROR))
2476 sky2_err_intr(hw, status);
2478 if (status & Y2_IS_IRQ_PHY1)
2479 sky2_phy_intr(hw, 0);
2481 if (status & Y2_IS_IRQ_PHY2)
2482 sky2_phy_intr(hw, 1);
2484 work_done = sky2_status_intr(hw, min(dev0->quota, *budget));
2485 *budget -= work_done;
2486 dev0->quota -= work_done;
2489 if (hw->st_idx != sky2_read16(hw, STAT_PUT_IDX))
2492 /* Bug/Errata workaround?
2493 * Need to kick the TX irq moderation timer.
2495 if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_START) {
2496 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
2497 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
2499 netif_rx_complete(dev0);
2501 sky2_read32(hw, B0_Y2_SP_LISR);
2505 static irqreturn_t sky2_intr(int irq, void *dev_id)
2507 struct sky2_hw *hw = dev_id;
2508 struct net_device *dev0 = hw->dev[0];
2511 /* Reading this mask interrupts as side effect */
2512 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
2513 if (status == 0 || status == ~0)
2516 prefetch(&hw->st_le[hw->st_idx]);
2517 if (likely(__netif_rx_schedule_prep(dev0)))
2518 __netif_rx_schedule(dev0);
2523 #ifdef CONFIG_NET_POLL_CONTROLLER
2524 static void sky2_netpoll(struct net_device *dev)
2526 struct sky2_port *sky2 = netdev_priv(dev);
2527 struct net_device *dev0 = sky2->hw->dev[0];
2529 if (netif_running(dev) && __netif_rx_schedule_prep(dev0))
2530 __netif_rx_schedule(dev0);
2534 /* Chip internal frequency for clock calculations */
2535 static inline u32 sky2_mhz(const struct sky2_hw *hw)
2537 switch (hw->chip_id) {
2538 case CHIP_ID_YUKON_EC:
2539 case CHIP_ID_YUKON_EC_U:
2540 case CHIP_ID_YUKON_EX:
2541 return 125; /* 125 Mhz */
2542 case CHIP_ID_YUKON_FE:
2543 return 100; /* 100 Mhz */
2544 default: /* YUKON_XL */
2545 return 156; /* 156 Mhz */
2549 static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us)
2551 return sky2_mhz(hw) * us;
2554 static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk)
2556 return clk / sky2_mhz(hw);
2560 static int __devinit sky2_init(struct sky2_hw *hw)
2564 /* Enable all clocks */
2565 sky2_pci_write32(hw, PCI_DEV_REG3, 0);
2567 sky2_write8(hw, B0_CTST, CS_RST_CLR);
2569 hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
2570 if (hw->chip_id < CHIP_ID_YUKON_XL || hw->chip_id > CHIP_ID_YUKON_FE) {
2571 dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
2576 hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
2578 /* This rev is really old, and requires untested workarounds */
2579 if (hw->chip_id == CHIP_ID_YUKON_EC && hw->chip_rev == CHIP_REV_YU_EC_A1) {
2580 dev_err(&hw->pdev->dev, "unsupported revision Yukon-%s (0x%x) rev %d\n",
2581 yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL],
2582 hw->chip_id, hw->chip_rev);
2586 hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
2588 t8 = sky2_read8(hw, B2_Y2_HW_RES);
2589 if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
2590 if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC))
2597 static void sky2_reset(struct sky2_hw *hw)
2603 if (hw->chip_id == CHIP_ID_YUKON_EX) {
2604 status = sky2_read16(hw, HCU_CCSR);
2605 status &= ~(HCU_CCSR_AHB_RST | HCU_CCSR_CPU_RST_MODE |
2606 HCU_CCSR_UC_STATE_MSK);
2607 sky2_write16(hw, HCU_CCSR, status);
2609 sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
2610 sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE);
2613 sky2_write8(hw, B0_CTST, CS_RST_SET);
2614 sky2_write8(hw, B0_CTST, CS_RST_CLR);
2616 /* clear PCI errors, if any */
2617 status = sky2_pci_read16(hw, PCI_STATUS);
2619 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2620 sky2_pci_write16(hw, PCI_STATUS, status | PCI_STATUS_ERROR_BITS);
2623 sky2_write8(hw, B0_CTST, CS_MRST_CLR);
2625 /* clear any PEX errors */
2626 if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP))
2627 sky2_pci_write32(hw, PEX_UNC_ERR_STAT, 0xffffffffUL);
2632 for (i = 0; i < hw->ports; i++) {
2633 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
2634 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
2636 if (hw->chip_id == CHIP_ID_YUKON_EX)
2637 sky2_write16(hw, SK_REG(i, GMAC_CTRL),
2638 GMC_BYP_MACSECRX_ON | GMC_BYP_MACSECTX_ON
2642 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2644 /* Clear I2C IRQ noise */
2645 sky2_write32(hw, B2_I2C_IRQ, 1);
2647 /* turn off hardware timer (unused) */
2648 sky2_write8(hw, B2_TI_CTRL, TIM_STOP);
2649 sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
2651 sky2_write8(hw, B0_Y2LED, LED_STAT_ON);
2653 /* Turn off descriptor polling */
2654 sky2_write32(hw, B28_DPT_CTRL, DPT_STOP);
2656 /* Turn off receive timestamp */
2657 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP);
2658 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
2660 /* enable the Tx Arbiters */
2661 for (i = 0; i < hw->ports; i++)
2662 sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
2664 /* Initialize ram interface */
2665 for (i = 0; i < hw->ports; i++) {
2666 sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR);
2668 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53);
2669 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53);
2670 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53);
2671 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53);
2672 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53);
2673 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53);
2674 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53);
2675 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53);
2676 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53);
2677 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53);
2678 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53);
2679 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53);
2682 sky2_write32(hw, B0_HWE_IMSK, Y2_HWE_ALL_MASK);
2684 for (i = 0; i < hw->ports; i++)
2685 sky2_gmac_reset(hw, i);
2687 memset(hw->st_le, 0, STATUS_LE_BYTES);
2690 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET);
2691 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR);
2693 sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma);
2694 sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32);
2696 /* Set the list last index */
2697 sky2_write16(hw, STAT_LAST_IDX, STATUS_RING_SIZE - 1);
2699 sky2_write16(hw, STAT_TX_IDX_TH, 10);
2700 sky2_write8(hw, STAT_FIFO_WM, 16);
2702 /* set Status-FIFO ISR watermark */
2703 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0)
2704 sky2_write8(hw, STAT_FIFO_ISR_WM, 4);
2706 sky2_write8(hw, STAT_FIFO_ISR_WM, 16);
2708 sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 1000));
2709 sky2_write32(hw, STAT_ISR_TIMER_INI, sky2_us2clk(hw, 20));
2710 sky2_write32(hw, STAT_LEV_TIMER_INI, sky2_us2clk(hw, 100));
2712 /* enable status unit */
2713 sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON);
2715 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
2716 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
2717 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
2720 static void sky2_restart(struct work_struct *work)
2722 struct sky2_hw *hw = container_of(work, struct sky2_hw, restart_work);
2723 struct net_device *dev;
2726 dev_dbg(&hw->pdev->dev, "restarting\n");
2728 del_timer_sync(&hw->idle_timer);
2731 sky2_write32(hw, B0_IMSK, 0);
2732 sky2_read32(hw, B0_IMSK);
2734 netif_poll_disable(hw->dev[0]);
2736 for (i = 0; i < hw->ports; i++) {
2738 if (netif_running(dev))
2743 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
2744 netif_poll_enable(hw->dev[0]);
2746 for (i = 0; i < hw->ports; i++) {
2748 if (netif_running(dev)) {
2751 printk(KERN_INFO PFX "%s: could not restart %d\n",
2758 sky2_idle_start(hw);
2763 static inline u8 sky2_wol_supported(const struct sky2_hw *hw)
2765 return sky2_is_copper(hw) ? (WAKE_PHY | WAKE_MAGIC) : 0;
2768 static void sky2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2770 const struct sky2_port *sky2 = netdev_priv(dev);
2772 wol->supported = sky2_wol_supported(sky2->hw);
2773 wol->wolopts = sky2->wol;
2776 static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2778 struct sky2_port *sky2 = netdev_priv(dev);
2779 struct sky2_hw *hw = sky2->hw;
2781 if (wol->wolopts & ~sky2_wol_supported(sky2->hw))
2784 sky2->wol = wol->wolopts;
2786 if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX)
2787 sky2_write32(hw, B0_CTST, sky2->wol
2788 ? Y2_HW_WOL_ON : Y2_HW_WOL_OFF);
2790 if (!netif_running(dev))
2791 sky2_wol_init(sky2);
2795 static u32 sky2_supported_modes(const struct sky2_hw *hw)
2797 if (sky2_is_copper(hw)) {
2798 u32 modes = SUPPORTED_10baseT_Half
2799 | SUPPORTED_10baseT_Full
2800 | SUPPORTED_100baseT_Half
2801 | SUPPORTED_100baseT_Full
2802 | SUPPORTED_Autoneg | SUPPORTED_TP;
2804 if (hw->chip_id != CHIP_ID_YUKON_FE)
2805 modes |= SUPPORTED_1000baseT_Half
2806 | SUPPORTED_1000baseT_Full;
2809 return SUPPORTED_1000baseT_Half
2810 | SUPPORTED_1000baseT_Full
2815 static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2817 struct sky2_port *sky2 = netdev_priv(dev);
2818 struct sky2_hw *hw = sky2->hw;
2820 ecmd->transceiver = XCVR_INTERNAL;
2821 ecmd->supported = sky2_supported_modes(hw);
2822 ecmd->phy_address = PHY_ADDR_MARV;
2823 if (sky2_is_copper(hw)) {
2824 ecmd->supported = SUPPORTED_10baseT_Half
2825 | SUPPORTED_10baseT_Full
2826 | SUPPORTED_100baseT_Half
2827 | SUPPORTED_100baseT_Full
2828 | SUPPORTED_1000baseT_Half
2829 | SUPPORTED_1000baseT_Full
2830 | SUPPORTED_Autoneg | SUPPORTED_TP;
2831 ecmd->port = PORT_TP;
2832 ecmd->speed = sky2->speed;
2834 ecmd->speed = SPEED_1000;
2835 ecmd->port = PORT_FIBRE;
2838 ecmd->advertising = sky2->advertising;
2839 ecmd->autoneg = sky2->autoneg;
2840 ecmd->duplex = sky2->duplex;
2844 static int sky2_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2846 struct sky2_port *sky2 = netdev_priv(dev);
2847 const struct sky2_hw *hw = sky2->hw;
2848 u32 supported = sky2_supported_modes(hw);
2850 if (ecmd->autoneg == AUTONEG_ENABLE) {
2851 ecmd->advertising = supported;
2857 switch (ecmd->speed) {
2859 if (ecmd->duplex == DUPLEX_FULL)
2860 setting = SUPPORTED_1000baseT_Full;
2861 else if (ecmd->duplex == DUPLEX_HALF)
2862 setting = SUPPORTED_1000baseT_Half;
2867 if (ecmd->duplex == DUPLEX_FULL)
2868 setting = SUPPORTED_100baseT_Full;
2869 else if (ecmd->duplex == DUPLEX_HALF)
2870 setting = SUPPORTED_100baseT_Half;
2876 if (ecmd->duplex == DUPLEX_FULL)
2877 setting = SUPPORTED_10baseT_Full;
2878 else if (ecmd->duplex == DUPLEX_HALF)
2879 setting = SUPPORTED_10baseT_Half;
2887 if ((setting & supported) == 0)
2890 sky2->speed = ecmd->speed;
2891 sky2->duplex = ecmd->duplex;
2894 sky2->autoneg = ecmd->autoneg;
2895 sky2->advertising = ecmd->advertising;
2897 if (netif_running(dev))
2898 sky2_phy_reinit(sky2);
2903 static void sky2_get_drvinfo(struct net_device *dev,
2904 struct ethtool_drvinfo *info)
2906 struct sky2_port *sky2 = netdev_priv(dev);
2908 strcpy(info->driver, DRV_NAME);
2909 strcpy(info->version, DRV_VERSION);
2910 strcpy(info->fw_version, "N/A");
2911 strcpy(info->bus_info, pci_name(sky2->hw->pdev));
2914 static const struct sky2_stat {
2915 char name[ETH_GSTRING_LEN];
2918 { "tx_bytes", GM_TXO_OK_HI },
2919 { "rx_bytes", GM_RXO_OK_HI },
2920 { "tx_broadcast", GM_TXF_BC_OK },
2921 { "rx_broadcast", GM_RXF_BC_OK },
2922 { "tx_multicast", GM_TXF_MC_OK },
2923 { "rx_multicast", GM_RXF_MC_OK },
2924 { "tx_unicast", GM_TXF_UC_OK },
2925 { "rx_unicast", GM_RXF_UC_OK },
2926 { "tx_mac_pause", GM_TXF_MPAUSE },
2927 { "rx_mac_pause", GM_RXF_MPAUSE },
2928 { "collisions", GM_TXF_COL },
2929 { "late_collision",GM_TXF_LAT_COL },
2930 { "aborted", GM_TXF_ABO_COL },
2931 { "single_collisions", GM_TXF_SNG_COL },
2932 { "multi_collisions", GM_TXF_MUL_COL },
2934 { "rx_short", GM_RXF_SHT },
2935 { "rx_runt", GM_RXE_FRAG },
2936 { "rx_64_byte_packets", GM_RXF_64B },
2937 { "rx_65_to_127_byte_packets", GM_RXF_127B },
2938 { "rx_128_to_255_byte_packets", GM_RXF_255B },
2939 { "rx_256_to_511_byte_packets", GM_RXF_511B },
2940 { "rx_512_to_1023_byte_packets", GM_RXF_1023B },
2941 { "rx_1024_to_1518_byte_packets", GM_RXF_1518B },
2942 { "rx_1518_to_max_byte_packets", GM_RXF_MAX_SZ },
2943 { "rx_too_long", GM_RXF_LNG_ERR },
2944 { "rx_fifo_overflow", GM_RXE_FIFO_OV },
2945 { "rx_jabber", GM_RXF_JAB_PKT },
2946 { "rx_fcs_error", GM_RXF_FCS_ERR },
2948 { "tx_64_byte_packets", GM_TXF_64B },
2949 { "tx_65_to_127_byte_packets", GM_TXF_127B },
2950 { "tx_128_to_255_byte_packets", GM_TXF_255B },
2951 { "tx_256_to_511_byte_packets", GM_TXF_511B },
2952 { "tx_512_to_1023_byte_packets", GM_TXF_1023B },
2953 { "tx_1024_to_1518_byte_packets", GM_TXF_1518B },
2954 { "tx_1519_to_max_byte_packets", GM_TXF_MAX_SZ },
2955 { "tx_fifo_underrun", GM_TXE_FIFO_UR },
2958 static u32 sky2_get_rx_csum(struct net_device *dev)
2960 struct sky2_port *sky2 = netdev_priv(dev);
2962 return sky2->rx_csum;
2965 static int sky2_set_rx_csum(struct net_device *dev, u32 data)
2967 struct sky2_port *sky2 = netdev_priv(dev);
2969 sky2->rx_csum = data;
2971 sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR),
2972 data ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
2977 static u32 sky2_get_msglevel(struct net_device *netdev)
2979 struct sky2_port *sky2 = netdev_priv(netdev);
2980 return sky2->msg_enable;
2983 static int sky2_nway_reset(struct net_device *dev)
2985 struct sky2_port *sky2 = netdev_priv(dev);
2987 if (!netif_running(dev) || sky2->autoneg != AUTONEG_ENABLE)
2990 sky2_phy_reinit(sky2);
2995 static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count)
2997 struct sky2_hw *hw = sky2->hw;
2998 unsigned port = sky2->port;
3001 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
3002 | (u64) gma_read32(hw, port, GM_TXO_OK_LO);
3003 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
3004 | (u64) gma_read32(hw, port, GM_RXO_OK_LO);
3006 for (i = 2; i < count; i++)
3007 data[i] = (u64) gma_read32(hw, port, sky2_stats[i].offset);
3010 static void sky2_set_msglevel(struct net_device *netdev, u32 value)
3012 struct sky2_port *sky2 = netdev_priv(netdev);
3013 sky2->msg_enable = value;
3016 static int sky2_get_stats_count(struct net_device *dev)
3018 return ARRAY_SIZE(sky2_stats);
3021 static void sky2_get_ethtool_stats(struct net_device *dev,
3022 struct ethtool_stats *stats, u64 * data)
3024 struct sky2_port *sky2 = netdev_priv(dev);
3026 sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats));
3029 static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data)
3033 switch (stringset) {
3035 for (i = 0; i < ARRAY_SIZE(sky2_stats); i++)
3036 memcpy(data + i * ETH_GSTRING_LEN,
3037 sky2_stats[i].name, ETH_GSTRING_LEN);
3042 static struct net_device_stats *sky2_get_stats(struct net_device *dev)
3044 struct sky2_port *sky2 = netdev_priv(dev);
3045 return &sky2->net_stats;
3048 static int sky2_set_mac_address(struct net_device *dev, void *p)
3050 struct sky2_port *sky2 = netdev_priv(dev);
3051 struct sky2_hw *hw = sky2->hw;
3052 unsigned port = sky2->port;
3053 const struct sockaddr *addr = p;
3055 if (!is_valid_ether_addr(addr->sa_data))
3056 return -EADDRNOTAVAIL;
3058 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
3059 memcpy_toio(hw->regs + B2_MAC_1 + port * 8,
3060 dev->dev_addr, ETH_ALEN);
3061 memcpy_toio(hw->regs + B2_MAC_2 + port * 8,
3062 dev->dev_addr, ETH_ALEN);
3064 /* virtual address for data */
3065 gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
3067 /* physical address: used for pause frames */
3068 gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
3073 static void inline sky2_add_filter(u8 filter[8], const u8 *addr)
3077 bit = ether_crc(ETH_ALEN, addr) & 63;
3078 filter[bit >> 3] |= 1 << (bit & 7);
3081 static void sky2_set_multicast(struct net_device *dev)
3083 struct sky2_port *sky2 = netdev_priv(dev);
3084 struct sky2_hw *hw = sky2->hw;
3085 unsigned port = sky2->port;
3086 struct dev_mc_list *list = dev->mc_list;
3090 static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 };
3092 rx_pause = (sky2->flow_status == FC_RX || sky2->flow_status == FC_BOTH);
3093 memset(filter, 0, sizeof(filter));
3095 reg = gma_read16(hw, port, GM_RX_CTRL);
3096 reg |= GM_RXCR_UCF_ENA;
3098 if (dev->flags & IFF_PROMISC) /* promiscuous */
3099 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
3100 else if (dev->flags & IFF_ALLMULTI)
3101 memset(filter, 0xff, sizeof(filter));
3102 else if (dev->mc_count == 0 && !rx_pause)
3103 reg &= ~GM_RXCR_MCF_ENA;
3106 reg |= GM_RXCR_MCF_ENA;
3109 sky2_add_filter(filter, pause_mc_addr);
3111 for (i = 0; list && i < dev->mc_count; i++, list = list->next)
3112 sky2_add_filter(filter, list->dmi_addr);
3115 gma_write16(hw, port, GM_MC_ADDR_H1,
3116 (u16) filter[0] | ((u16) filter[1] << 8));
3117 gma_write16(hw, port, GM_MC_ADDR_H2,
3118 (u16) filter[2] | ((u16) filter[3] << 8));
3119 gma_write16(hw, port, GM_MC_ADDR_H3,
3120 (u16) filter[4] | ((u16) filter[5] << 8));
3121 gma_write16(hw, port, GM_MC_ADDR_H4,
3122 (u16) filter[6] | ((u16) filter[7] << 8));
3124 gma_write16(hw, port, GM_RX_CTRL, reg);
3127 /* Can have one global because blinking is controlled by
3128 * ethtool and that is always under RTNL mutex
3130 static void sky2_led(struct sky2_hw *hw, unsigned port, int on)
3134 switch (hw->chip_id) {
3135 case CHIP_ID_YUKON_XL:
3136 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
3137 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
3138 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
3139 on ? (PHY_M_LEDC_LOS_CTRL(1) |
3140 PHY_M_LEDC_INIT_CTRL(7) |
3141 PHY_M_LEDC_STA1_CTRL(7) |
3142 PHY_M_LEDC_STA0_CTRL(7))
3145 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
3149 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
3150 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
3151 on ? PHY_M_LED_ALL : 0);
3155 /* blink LED's for finding board */
3156 static int sky2_phys_id(struct net_device *dev, u32 data)
3158 struct sky2_port *sky2 = netdev_priv(dev);
3159 struct sky2_hw *hw = sky2->hw;
3160 unsigned port = sky2->port;
3161 u16 ledctrl, ledover = 0;
3166 if (!data || data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ))
3167 ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT);
3171 /* save initial values */
3172 spin_lock_bh(&sky2->phy_lock);
3173 if (hw->chip_id == CHIP_ID_YUKON_XL) {
3174 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
3175 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
3176 ledctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
3177 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
3179 ledctrl = gm_phy_read(hw, port, PHY_MARV_LED_CTRL);
3180 ledover = gm_phy_read(hw, port, PHY_MARV_LED_OVER);
3184 while (!interrupted && ms > 0) {
3185 sky2_led(hw, port, onoff);
3188 spin_unlock_bh(&sky2->phy_lock);
3189 interrupted = msleep_interruptible(250);
3190 spin_lock_bh(&sky2->phy_lock);
3195 /* resume regularly scheduled programming */
3196 if (hw->chip_id == CHIP_ID_YUKON_XL) {
3197 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
3198 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
3199 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ledctrl);
3200 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
3202 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
3203 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
3205 spin_unlock_bh(&sky2->phy_lock);
3210 static void sky2_get_pauseparam(struct net_device *dev,
3211 struct ethtool_pauseparam *ecmd)
3213 struct sky2_port *sky2 = netdev_priv(dev);
3215 switch (sky2->flow_mode) {
3217 ecmd->tx_pause = ecmd->rx_pause = 0;
3220 ecmd->tx_pause = 1, ecmd->rx_pause = 0;
3223 ecmd->tx_pause = 0, ecmd->rx_pause = 1;
3226 ecmd->tx_pause = ecmd->rx_pause = 1;
3229 ecmd->autoneg = sky2->autoneg;
3232 static int sky2_set_pauseparam(struct net_device *dev,
3233 struct ethtool_pauseparam *ecmd)
3235 struct sky2_port *sky2 = netdev_priv(dev);
3237 sky2->autoneg = ecmd->autoneg;
3238 sky2->flow_mode = sky2_flow(ecmd->rx_pause, ecmd->tx_pause);
3240 if (netif_running(dev))
3241 sky2_phy_reinit(sky2);
3246 static int sky2_get_coalesce(struct net_device *dev,
3247 struct ethtool_coalesce *ecmd)
3249 struct sky2_port *sky2 = netdev_priv(dev);
3250 struct sky2_hw *hw = sky2->hw;
3252 if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_STOP)
3253 ecmd->tx_coalesce_usecs = 0;
3255 u32 clks = sky2_read32(hw, STAT_TX_TIMER_INI);
3256 ecmd->tx_coalesce_usecs = sky2_clk2us(hw, clks);
3258 ecmd->tx_max_coalesced_frames = sky2_read16(hw, STAT_TX_IDX_TH);
3260 if (sky2_read8(hw, STAT_LEV_TIMER_CTRL) == TIM_STOP)
3261 ecmd->rx_coalesce_usecs = 0;
3263 u32 clks = sky2_read32(hw, STAT_LEV_TIMER_INI);
3264 ecmd->rx_coalesce_usecs = sky2_clk2us(hw, clks);
3266 ecmd->rx_max_coalesced_frames = sky2_read8(hw, STAT_FIFO_WM);
3268 if (sky2_read8(hw, STAT_ISR_TIMER_CTRL) == TIM_STOP)
3269 ecmd->rx_coalesce_usecs_irq = 0;
3271 u32 clks = sky2_read32(hw, STAT_ISR_TIMER_INI);
3272 ecmd->rx_coalesce_usecs_irq = sky2_clk2us(hw, clks);
3275 ecmd->rx_max_coalesced_frames_irq = sky2_read8(hw, STAT_FIFO_ISR_WM);
3280 /* Note: this affect both ports */
3281 static int sky2_set_coalesce(struct net_device *dev,
3282 struct ethtool_coalesce *ecmd)
3284 struct sky2_port *sky2 = netdev_priv(dev);
3285 struct sky2_hw *hw = sky2->hw;
3286 const u32 tmax = sky2_clk2us(hw, 0x0ffffff);
3288 if (ecmd->tx_coalesce_usecs > tmax ||
3289 ecmd->rx_coalesce_usecs > tmax ||
3290 ecmd->rx_coalesce_usecs_irq > tmax)
3293 if (ecmd->tx_max_coalesced_frames >= TX_RING_SIZE-1)
3295 if (ecmd->rx_max_coalesced_frames > RX_MAX_PENDING)
3297 if (ecmd->rx_max_coalesced_frames_irq >RX_MAX_PENDING)
3300 if (ecmd->tx_coalesce_usecs == 0)
3301 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
3303 sky2_write32(hw, STAT_TX_TIMER_INI,
3304 sky2_us2clk(hw, ecmd->tx_coalesce_usecs));
3305 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
3307 sky2_write16(hw, STAT_TX_IDX_TH, ecmd->tx_max_coalesced_frames);
3309 if (ecmd->rx_coalesce_usecs == 0)
3310 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_STOP);
3312 sky2_write32(hw, STAT_LEV_TIMER_INI,
3313 sky2_us2clk(hw, ecmd->rx_coalesce_usecs));
3314 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
3316 sky2_write8(hw, STAT_FIFO_WM, ecmd->rx_max_coalesced_frames);
3318 if (ecmd->rx_coalesce_usecs_irq == 0)
3319 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_STOP);
3321 sky2_write32(hw, STAT_ISR_TIMER_INI,
3322 sky2_us2clk(hw, ecmd->rx_coalesce_usecs_irq));
3323 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
3325 sky2_write8(hw, STAT_FIFO_ISR_WM, ecmd->rx_max_coalesced_frames_irq);
3329 static void sky2_get_ringparam(struct net_device *dev,
3330 struct ethtool_ringparam *ering)
3332 struct sky2_port *sky2 = netdev_priv(dev);
3334 ering->rx_max_pending = RX_MAX_PENDING;
3335 ering->rx_mini_max_pending = 0;
3336 ering->rx_jumbo_max_pending = 0;
3337 ering->tx_max_pending = TX_RING_SIZE - 1;
3339 ering->rx_pending = sky2->rx_pending;
3340 ering->rx_mini_pending = 0;
3341 ering->rx_jumbo_pending = 0;
3342 ering->tx_pending = sky2->tx_pending;
3345 static int sky2_set_ringparam(struct net_device *dev,
3346 struct ethtool_ringparam *ering)
3348 struct sky2_port *sky2 = netdev_priv(dev);
3351 if (ering->rx_pending > RX_MAX_PENDING ||
3352 ering->rx_pending < 8 ||
3353 ering->tx_pending < MAX_SKB_TX_LE ||
3354 ering->tx_pending > TX_RING_SIZE - 1)
3357 if (netif_running(dev))
3360 sky2->rx_pending = ering->rx_pending;
3361 sky2->tx_pending = ering->tx_pending;
3363 if (netif_running(dev)) {
3368 sky2_set_multicast(dev);
3374 static int sky2_get_regs_len(struct net_device *dev)
3380 * Returns copy of control register region
3381 * Note: ethtool_get_regs always provides full size (16k) buffer
3383 static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs,
3386 const struct sky2_port *sky2 = netdev_priv(dev);
3387 const void __iomem *io = sky2->hw->regs;
3390 memset(p, 0, regs->len);
3392 memcpy_fromio(p, io, B3_RAM_ADDR);
3394 /* skip diagnostic ram region */
3395 memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1, 0x2000 - B3_RI_WTO_R1);
3397 /* copy GMAC registers */
3398 memcpy_fromio(p + BASE_GMAC_1, io + BASE_GMAC_1, 0x1000);
3399 if (sky2->hw->ports > 1)
3400 memcpy_fromio(p + BASE_GMAC_2, io + BASE_GMAC_2, 0x1000);
3404 /* In order to do Jumbo packets on these chips, need to turn off the
3405 * transmit store/forward. Therefore checksum offload won't work.
3407 static int no_tx_offload(struct net_device *dev)
3409 const struct sky2_port *sky2 = netdev_priv(dev);
3410 const struct sky2_hw *hw = sky2->hw;
3412 return dev->mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_EC_U;
3415 static int sky2_set_tx_csum(struct net_device *dev, u32 data)
3417 if (data && no_tx_offload(dev))
3420 return ethtool_op_set_tx_csum(dev, data);
3424 static int sky2_set_tso(struct net_device *dev, u32 data)
3426 if (data && no_tx_offload(dev))
3429 return ethtool_op_set_tso(dev, data);
3432 static const struct ethtool_ops sky2_ethtool_ops = {
3433 .get_settings = sky2_get_settings,
3434 .set_settings = sky2_set_settings,
3435 .get_drvinfo = sky2_get_drvinfo,
3436 .get_wol = sky2_get_wol,
3437 .set_wol = sky2_set_wol,
3438 .get_msglevel = sky2_get_msglevel,
3439 .set_msglevel = sky2_set_msglevel,
3440 .nway_reset = sky2_nway_reset,
3441 .get_regs_len = sky2_get_regs_len,
3442 .get_regs = sky2_get_regs,
3443 .get_link = ethtool_op_get_link,
3444 .get_sg = ethtool_op_get_sg,
3445 .set_sg = ethtool_op_set_sg,
3446 .get_tx_csum = ethtool_op_get_tx_csum,
3447 .set_tx_csum = sky2_set_tx_csum,
3448 .get_tso = ethtool_op_get_tso,
3449 .set_tso = sky2_set_tso,
3450 .get_rx_csum = sky2_get_rx_csum,
3451 .set_rx_csum = sky2_set_rx_csum,
3452 .get_strings = sky2_get_strings,
3453 .get_coalesce = sky2_get_coalesce,
3454 .set_coalesce = sky2_set_coalesce,
3455 .get_ringparam = sky2_get_ringparam,
3456 .set_ringparam = sky2_set_ringparam,
3457 .get_pauseparam = sky2_get_pauseparam,
3458 .set_pauseparam = sky2_set_pauseparam,
3459 .phys_id = sky2_phys_id,
3460 .get_stats_count = sky2_get_stats_count,
3461 .get_ethtool_stats = sky2_get_ethtool_stats,
3462 .get_perm_addr = ethtool_op_get_perm_addr,
3465 #ifdef CONFIG_SKY2_DEBUG
3467 static struct dentry *sky2_debug;
3469 static int sky2_debug_show(struct seq_file *seq, void *v)
3471 struct net_device *dev = seq->private;
3472 const struct sky2_port *sky2 = netdev_priv(dev);
3473 const struct sky2_hw *hw = sky2->hw;
3474 unsigned port = sky2->port;
3478 if (!netif_running(dev))
3481 seq_printf(seq, "IRQ src=%x mask=%x control=%x\n",
3482 sky2_read32(hw, B0_ISRC),
3483 sky2_read32(hw, B0_IMSK),
3484 sky2_read32(hw, B0_Y2_SP_ICR));
3486 netif_poll_disable(hw->dev[0]);
3487 last = sky2_read16(hw, STAT_PUT_IDX);
3489 if (hw->st_idx == last)
3490 seq_puts(seq, "Status ring (empty)\n");
3492 seq_puts(seq, "Status ring\n");
3493 for (idx = hw->st_idx; idx != last && idx < STATUS_RING_SIZE;
3494 idx = RING_NEXT(idx, STATUS_RING_SIZE)) {
3495 const struct sky2_status_le *le = hw->st_le + idx;
3496 seq_printf(seq, "[%d] %#x %d %#x\n",
3497 idx, le->opcode, le->length, le->status);
3499 seq_puts(seq, "\n");
3502 seq_printf(seq, "Tx ring pending=%u...%u report=%d done=%d\n",
3503 sky2->tx_cons, sky2->tx_prod,
3504 sky2_read16(hw, port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX),
3505 sky2_read16(hw, Q_ADDR(txqaddr[port], Q_DONE)));
3507 /* Dump contents of tx ring */
3509 for (idx = sky2->tx_next; idx != sky2->tx_prod && idx < TX_RING_SIZE;
3510 idx = RING_NEXT(idx, TX_RING_SIZE)) {
3511 const struct sky2_tx_le *le = sky2->tx_le + idx;
3512 u32 a = le32_to_cpu(le->addr);
3515 seq_printf(seq, "%u:", idx);
3518 switch(le->opcode & ~HW_OWNER) {
3520 seq_printf(seq, " %#x:", a);
3523 seq_printf(seq, " mtu=%d", a);
3526 seq_printf(seq, " vlan=%d", be16_to_cpu(le->length));
3529 seq_printf(seq, " csum=%#x", a);
3532 seq_printf(seq, " tso=%#x(%d)", a, le16_to_cpu(le->length));
3535 seq_printf(seq, " %#x(%d)", a, le16_to_cpu(le->length));
3538 seq_printf(seq, " frag=%#x(%d)", a, le16_to_cpu(le->length));
3541 seq_printf(seq, " op=%#x,%#x(%d)", le->opcode,
3542 a, le16_to_cpu(le->length));
3545 if (le->ctrl & EOP) {
3546 seq_putc(seq, '\n');
3551 seq_printf(seq, "\nRx ring hw get=%d put=%d last=%d\n",
3552 sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_GET_IDX)),
3553 last = sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_PUT_IDX)),
3554 sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_LAST_IDX)));
3556 netif_poll_enable(hw->dev[0]);
3560 static int sky2_debug_open(struct inode *inode, struct file *file)
3562 return single_open(file, sky2_debug_show, inode->i_private);
3565 static const struct file_operations sky2_debug_fops = {
3566 .owner = THIS_MODULE,
3567 .open = sky2_debug_open,
3569 .llseek = seq_lseek,
3570 .release = single_release,
3574 * Use network device events to create/remove/rename
3575 * debugfs file entries
3577 static int sky2_device_event(struct notifier_block *unused,
3578 unsigned long event, void *ptr)
3580 struct net_device *dev = ptr;
3582 if (dev->open == sky2_up) {
3583 struct sky2_port *sky2 = netdev_priv(dev);
3586 case NETDEV_CHANGENAME:
3587 if (!netif_running(dev))
3591 case NETDEV_GOING_DOWN:
3592 if (sky2->debugfs) {
3593 printk(KERN_DEBUG PFX "%s: remove debugfs\n",
3595 debugfs_remove(sky2->debugfs);
3596 sky2->debugfs = NULL;
3599 if (event != NETDEV_CHANGENAME)
3601 /* fallthrough for changename */
3605 d = debugfs_create_file(dev->name, S_IRUGO,
3608 if (d == NULL || IS_ERR(d))
3609 printk(KERN_INFO PFX
3610 "%s: debugfs create failed\n",
3622 static struct notifier_block sky2_notifier = {
3623 .notifier_call = sky2_device_event,
3627 static __init void sky2_debug_init(void)
3631 ent = debugfs_create_dir("sky2", NULL);
3632 if (!ent || IS_ERR(ent))
3636 register_netdevice_notifier(&sky2_notifier);
3639 static __exit void sky2_debug_cleanup(void)
3642 unregister_netdevice_notifier(&sky2_notifier);
3643 debugfs_remove(sky2_debug);
3649 #define sky2_debug_init()
3650 #define sky2_debug_cleanup()
3654 /* Initialize network device */
3655 static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
3657 int highmem, int wol)
3659 struct sky2_port *sky2;
3660 struct net_device *dev = alloc_etherdev(sizeof(*sky2));
3663 dev_err(&hw->pdev->dev, "etherdev alloc failed");
3667 SET_MODULE_OWNER(dev);
3668 SET_NETDEV_DEV(dev, &hw->pdev->dev);
3669 dev->irq = hw->pdev->irq;
3670 dev->open = sky2_up;
3671 dev->stop = sky2_down;
3672 dev->do_ioctl = sky2_ioctl;
3673 dev->hard_start_xmit = sky2_xmit_frame;
3674 dev->get_stats = sky2_get_stats;
3675 dev->set_multicast_list = sky2_set_multicast;
3676 dev->set_mac_address = sky2_set_mac_address;
3677 dev->change_mtu = sky2_change_mtu;
3678 SET_ETHTOOL_OPS(dev, &sky2_ethtool_ops);
3679 dev->tx_timeout = sky2_tx_timeout;
3680 dev->watchdog_timeo = TX_WATCHDOG;
3682 dev->poll = sky2_poll;
3683 dev->weight = NAPI_WEIGHT;
3684 #ifdef CONFIG_NET_POLL_CONTROLLER
3685 /* Network console (only works on port 0)
3686 * because netpoll makes assumptions about NAPI
3689 dev->poll_controller = sky2_netpoll;
3692 sky2 = netdev_priv(dev);
3695 sky2->msg_enable = netif_msg_init(debug, default_msg);
3697 /* Auto speed and flow control */
3698 sky2->autoneg = AUTONEG_ENABLE;
3699 sky2->flow_mode = FC_BOTH;
3703 sky2->advertising = sky2_supported_modes(hw);
3707 spin_lock_init(&sky2->phy_lock);
3708 sky2->tx_pending = TX_DEF_PENDING;
3709 sky2->rx_pending = RX_DEF_PENDING;
3711 hw->dev[port] = dev;
3715 dev->features |= NETIF_F_TSO | NETIF_F_IP_CSUM | NETIF_F_SG;
3717 dev->features |= NETIF_F_HIGHDMA;
3719 #ifdef SKY2_VLAN_TAG_USED
3720 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
3721 dev->vlan_rx_register = sky2_vlan_rx_register;
3724 /* read the mac address */
3725 memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN);
3726 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
3731 static void __devinit sky2_show_addr(struct net_device *dev)
3733 const struct sky2_port *sky2 = netdev_priv(dev);
3735 if (netif_msg_probe(sky2))
3736 printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
3738 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
3739 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
3742 /* Handle software interrupt used during MSI test */
3743 static irqreturn_t __devinit sky2_test_intr(int irq, void *dev_id)
3745 struct sky2_hw *hw = dev_id;
3746 u32 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
3751 if (status & Y2_IS_IRQ_SW) {
3753 wake_up(&hw->msi_wait);
3754 sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
3756 sky2_write32(hw, B0_Y2_SP_ICR, 2);
3761 /* Test interrupt path by forcing a a software IRQ */
3762 static int __devinit sky2_test_msi(struct sky2_hw *hw)
3764 struct pci_dev *pdev = hw->pdev;
3767 init_waitqueue_head (&hw->msi_wait);
3769 sky2_write32(hw, B0_IMSK, Y2_IS_IRQ_SW);
3771 err = request_irq(pdev->irq, sky2_test_intr, 0, DRV_NAME, hw);
3773 dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
3777 sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ);
3778 sky2_read8(hw, B0_CTST);
3780 wait_event_timeout(hw->msi_wait, hw->msi, HZ/10);
3783 /* MSI test failed, go back to INTx mode */
3784 dev_info(&pdev->dev, "No interrupt generated using MSI, "
3785 "switching to INTx mode.\n");
3788 sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
3791 sky2_write32(hw, B0_IMSK, 0);
3792 sky2_read32(hw, B0_IMSK);
3794 free_irq(pdev->irq, hw);
3799 static int __devinit pci_wake_enabled(struct pci_dev *dev)
3801 int pm = pci_find_capability(dev, PCI_CAP_ID_PM);
3806 if (pci_read_config_word(dev, pm + PCI_PM_CTRL, &value))
3808 return value & PCI_PM_CTRL_PME_ENABLE;
3811 static int __devinit sky2_probe(struct pci_dev *pdev,
3812 const struct pci_device_id *ent)
3814 struct net_device *dev;
3816 int err, using_dac = 0, wol_default;
3818 err = pci_enable_device(pdev);
3820 dev_err(&pdev->dev, "cannot enable PCI device\n");
3824 err = pci_request_regions(pdev, DRV_NAME);
3826 dev_err(&pdev->dev, "cannot obtain PCI resources\n");
3827 goto err_out_disable;
3830 pci_set_master(pdev);
3832 if (sizeof(dma_addr_t) > sizeof(u32) &&
3833 !(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) {
3835 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
3837 dev_err(&pdev->dev, "unable to obtain 64 bit DMA "
3838 "for consistent allocations\n");
3839 goto err_out_free_regions;
3842 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
3844 dev_err(&pdev->dev, "no usable DMA configuration\n");
3845 goto err_out_free_regions;
3849 wol_default = pci_wake_enabled(pdev) ? WAKE_MAGIC : 0;
3852 hw = kzalloc(sizeof(*hw), GFP_KERNEL);
3854 dev_err(&pdev->dev, "cannot allocate hardware struct\n");
3855 goto err_out_free_regions;
3860 hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
3862 dev_err(&pdev->dev, "cannot map device registers\n");
3863 goto err_out_free_hw;
3867 /* The sk98lin vendor driver uses hardware byte swapping but
3868 * this driver uses software swapping.
3872 reg = sky2_pci_read32(hw, PCI_DEV_REG2);
3873 reg &= ~PCI_REV_DESC;
3874 sky2_pci_write32(hw, PCI_DEV_REG2, reg);
3878 /* ring for status responses */
3879 hw->st_le = pci_alloc_consistent(hw->pdev, STATUS_LE_BYTES,
3882 goto err_out_iounmap;
3884 err = sky2_init(hw);
3886 goto err_out_iounmap;
3888 dev_info(&pdev->dev, "v%s addr 0x%llx irq %d Yukon-%s (0x%x) rev %d\n",
3889 DRV_VERSION, (unsigned long long)pci_resource_start(pdev, 0),
3890 pdev->irq, yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL],
3891 hw->chip_id, hw->chip_rev);
3895 dev = sky2_init_netdev(hw, 0, using_dac, wol_default);
3898 goto err_out_free_pci;
3901 if (!disable_msi && pci_enable_msi(pdev) == 0) {
3902 err = sky2_test_msi(hw);
3903 if (err == -EOPNOTSUPP)
3904 pci_disable_msi(pdev);
3906 goto err_out_free_netdev;
3909 err = register_netdev(dev);
3911 dev_err(&pdev->dev, "cannot register net device\n");
3912 goto err_out_free_netdev;
3915 err = request_irq(pdev->irq, sky2_intr, hw->msi ? 0 : IRQF_SHARED,
3918 dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
3919 goto err_out_unregister;
3921 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
3923 sky2_show_addr(dev);
3925 if (hw->ports > 1) {
3926 struct net_device *dev1;
3928 dev1 = sky2_init_netdev(hw, 1, using_dac, wol_default);
3930 dev_warn(&pdev->dev, "allocation for second device failed\n");
3931 else if ((err = register_netdev(dev1))) {
3932 dev_warn(&pdev->dev,
3933 "register of second port failed (%d)\n", err);
3937 sky2_show_addr(dev1);
3940 setup_timer(&hw->idle_timer, sky2_idle, (unsigned long) hw);
3941 INIT_WORK(&hw->restart_work, sky2_restart);
3943 sky2_idle_start(hw);
3945 pci_set_drvdata(pdev, hw);
3951 pci_disable_msi(pdev);
3952 unregister_netdev(dev);
3953 err_out_free_netdev:
3956 sky2_write8(hw, B0_CTST, CS_RST_SET);
3957 pci_free_consistent(hw->pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
3962 err_out_free_regions:
3963 pci_release_regions(pdev);
3965 pci_disable_device(pdev);
3967 pci_set_drvdata(pdev, NULL);
3971 static void __devexit sky2_remove(struct pci_dev *pdev)
3973 struct sky2_hw *hw = pci_get_drvdata(pdev);
3974 struct net_device *dev0, *dev1;
3979 del_timer_sync(&hw->idle_timer);
3981 flush_scheduled_work();
3983 sky2_write32(hw, B0_IMSK, 0);
3984 synchronize_irq(hw->pdev->irq);
3989 unregister_netdev(dev1);
3990 unregister_netdev(dev0);
3994 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
3995 sky2_write8(hw, B0_CTST, CS_RST_SET);
3996 sky2_read8(hw, B0_CTST);
3998 free_irq(pdev->irq, hw);
4000 pci_disable_msi(pdev);
4001 pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
4002 pci_release_regions(pdev);
4003 pci_disable_device(pdev);
4011 pci_set_drvdata(pdev, NULL);
4015 static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
4017 struct sky2_hw *hw = pci_get_drvdata(pdev);
4023 del_timer_sync(&hw->idle_timer);
4024 netif_poll_disable(hw->dev[0]);
4026 for (i = 0; i < hw->ports; i++) {
4027 struct net_device *dev = hw->dev[i];
4028 struct sky2_port *sky2 = netdev_priv(dev);
4030 if (netif_running(dev))
4034 sky2_wol_init(sky2);
4039 sky2_write32(hw, B0_IMSK, 0);
4042 pci_save_state(pdev);
4043 pci_enable_wake(pdev, pci_choose_state(pdev, state), wol);
4044 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4049 static int sky2_resume(struct pci_dev *pdev)
4051 struct sky2_hw *hw = pci_get_drvdata(pdev);
4057 err = pci_set_power_state(pdev, PCI_D0);
4061 err = pci_restore_state(pdev);
4065 pci_enable_wake(pdev, PCI_D0, 0);
4067 /* Re-enable all clocks */
4068 if (hw->chip_id == CHIP_ID_YUKON_EX || hw->chip_id == CHIP_ID_YUKON_EC_U)
4069 sky2_pci_write32(hw, PCI_DEV_REG3, 0);
4073 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
4075 for (i = 0; i < hw->ports; i++) {
4076 struct net_device *dev = hw->dev[i];
4077 if (netif_running(dev)) {
4080 printk(KERN_ERR PFX "%s: could not up: %d\n",
4088 netif_poll_enable(hw->dev[0]);
4089 sky2_idle_start(hw);
4092 dev_err(&pdev->dev, "resume failed (%d)\n", err);
4093 pci_disable_device(pdev);
4098 static void sky2_shutdown(struct pci_dev *pdev)
4100 struct sky2_hw *hw = pci_get_drvdata(pdev);
4106 del_timer_sync(&hw->idle_timer);
4107 netif_poll_disable(hw->dev[0]);
4109 for (i = 0; i < hw->ports; i++) {
4110 struct net_device *dev = hw->dev[i];
4111 struct sky2_port *sky2 = netdev_priv(dev);
4115 sky2_wol_init(sky2);
4122 pci_enable_wake(pdev, PCI_D3hot, wol);
4123 pci_enable_wake(pdev, PCI_D3cold, wol);
4125 pci_disable_device(pdev);
4126 pci_set_power_state(pdev, PCI_D3hot);
4130 static struct pci_driver sky2_driver = {
4132 .id_table = sky2_id_table,
4133 .probe = sky2_probe,
4134 .remove = __devexit_p(sky2_remove),
4136 .suspend = sky2_suspend,
4137 .resume = sky2_resume,
4139 .shutdown = sky2_shutdown,
4142 static int __init sky2_init_module(void)
4145 return pci_register_driver(&sky2_driver);
4148 static void __exit sky2_cleanup_module(void)
4150 pci_unregister_driver(&sky2_driver);
4151 sky2_debug_cleanup();
4154 module_init(sky2_init_module);
4155 module_exit(sky2_cleanup_module);
4157 MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver");
4158 MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
4159 MODULE_LICENSE("GPL");
4160 MODULE_VERSION(DRV_VERSION);