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/module.h>
28 #include <linux/netdevice.h>
29 #include <linux/dma-mapping.h>
30 #include <linux/etherdevice.h>
31 #include <linux/ethtool.h>
32 #include <linux/pci.h>
35 #include <linux/tcp.h>
37 #include <linux/delay.h>
38 #include <linux/workqueue.h>
39 #include <linux/if_vlan.h>
40 #include <linux/prefetch.h>
41 #include <linux/debugfs.h>
42 #include <linux/mii.h>
46 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
47 #define SKY2_VLAN_TAG_USED 1
52 #define DRV_NAME "sky2"
53 #define DRV_VERSION "1.23"
54 #define PFX DRV_NAME " "
57 * The Yukon II chipset takes 64 bit command blocks (called list elements)
58 * that are organized into three (receive, transmit, status) different rings
62 #define RX_LE_SIZE 1024
63 #define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le))
64 #define RX_MAX_PENDING (RX_LE_SIZE/6 - 2)
65 #define RX_DEF_PENDING RX_MAX_PENDING
67 #define TX_RING_SIZE 512
68 #define TX_DEF_PENDING 128
69 #define MAX_SKB_TX_LE (4 + (sizeof(dma_addr_t)/sizeof(u32))*MAX_SKB_FRAGS)
70 #define TX_MIN_PENDING (MAX_SKB_TX_LE+1)
72 #define STATUS_RING_SIZE 2048 /* 2 ports * (TX + 2*RX) */
73 #define STATUS_LE_BYTES (STATUS_RING_SIZE*sizeof(struct sky2_status_le))
74 #define TX_WATCHDOG (5 * HZ)
75 #define NAPI_WEIGHT 64
76 #define PHY_RETRIES 1000
78 #define SKY2_EEPROM_MAGIC 0x9955aabb
81 #define RING_NEXT(x,s) (((x)+1) & ((s)-1))
83 static const u32 default_msg =
84 NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
85 | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
86 | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
88 static int debug = -1; /* defaults above */
89 module_param(debug, int, 0);
90 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
92 static int copybreak __read_mostly = 128;
93 module_param(copybreak, int, 0);
94 MODULE_PARM_DESC(copybreak, "Receive copy threshold");
96 static int disable_msi = 0;
97 module_param(disable_msi, int, 0);
98 MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
100 static DEFINE_PCI_DEVICE_TABLE(sky2_id_table) = {
101 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, /* SK-9Sxx */
102 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */
103 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) }, /* DGE-560T */
104 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4001) }, /* DGE-550SX */
105 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B02) }, /* DGE-560SX */
106 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B03) }, /* DGE-550T */
107 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4340) }, /* 88E8021 */
108 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4341) }, /* 88E8022 */
109 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4342) }, /* 88E8061 */
110 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4343) }, /* 88E8062 */
111 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4344) }, /* 88E8021 */
112 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4345) }, /* 88E8022 */
113 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4346) }, /* 88E8061 */
114 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4347) }, /* 88E8062 */
115 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4350) }, /* 88E8035 */
116 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) }, /* 88E8036 */
117 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) }, /* 88E8038 */
118 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4353) }, /* 88E8039 */
119 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4354) }, /* 88E8040 */
120 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4355) }, /* 88E8040T */
121 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4356) }, /* 88EC033 */
122 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4357) }, /* 88E8042 */
123 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x435A) }, /* 88E8048 */
124 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) }, /* 88E8052 */
125 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) }, /* 88E8050 */
126 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) }, /* 88E8053 */
127 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) }, /* 88E8055 */
128 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4364) }, /* 88E8056 */
129 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4365) }, /* 88E8070 */
130 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4366) }, /* 88EC036 */
131 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4367) }, /* 88EC032 */
132 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) }, /* 88EC034 */
133 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4369) }, /* 88EC042 */
134 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436A) }, /* 88E8058 */
135 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436B) }, /* 88E8071 */
136 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436C) }, /* 88E8072 */
137 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436D) }, /* 88E8055 */
138 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4370) }, /* 88E8075 */
139 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4380) }, /* 88E8057 */
143 MODULE_DEVICE_TABLE(pci, sky2_id_table);
145 /* Avoid conditionals by using array */
146 static const unsigned txqaddr[] = { Q_XA1, Q_XA2 };
147 static const unsigned rxqaddr[] = { Q_R1, Q_R2 };
148 static const u32 portirq_msk[] = { Y2_IS_PORT_1, Y2_IS_PORT_2 };
150 static void sky2_set_multicast(struct net_device *dev);
152 /* Access to PHY via serial interconnect */
153 static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val)
157 gma_write16(hw, port, GM_SMI_DATA, val);
158 gma_write16(hw, port, GM_SMI_CTRL,
159 GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) | GM_SMI_CT_REG_AD(reg));
161 for (i = 0; i < PHY_RETRIES; i++) {
162 u16 ctrl = gma_read16(hw, port, GM_SMI_CTRL);
166 if (!(ctrl & GM_SMI_CT_BUSY))
172 dev_warn(&hw->pdev->dev,"%s: phy write timeout\n", hw->dev[port]->name);
176 dev_err(&hw->pdev->dev, "%s: phy I/O error\n", hw->dev[port]->name);
180 static int __gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg, u16 *val)
184 gma_write16(hw, port, GM_SMI_CTRL, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV)
185 | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
187 for (i = 0; i < PHY_RETRIES; i++) {
188 u16 ctrl = gma_read16(hw, port, GM_SMI_CTRL);
192 if (ctrl & GM_SMI_CT_RD_VAL) {
193 *val = gma_read16(hw, port, GM_SMI_DATA);
200 dev_warn(&hw->pdev->dev, "%s: phy read timeout\n", hw->dev[port]->name);
203 dev_err(&hw->pdev->dev, "%s: phy I/O error\n", hw->dev[port]->name);
207 static inline u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg)
210 __gm_phy_read(hw, port, reg, &v);
215 static void sky2_power_on(struct sky2_hw *hw)
217 /* switch power to VCC (WA for VAUX problem) */
218 sky2_write8(hw, B0_POWER_CTRL,
219 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
221 /* disable Core Clock Division, */
222 sky2_write32(hw, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS);
224 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
225 /* enable bits are inverted */
226 sky2_write8(hw, B2_Y2_CLK_GATE,
227 Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
228 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
229 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
231 sky2_write8(hw, B2_Y2_CLK_GATE, 0);
233 if (hw->flags & SKY2_HW_ADV_POWER_CTL) {
236 sky2_pci_write32(hw, PCI_DEV_REG3, 0);
238 reg = sky2_pci_read32(hw, PCI_DEV_REG4);
239 /* set all bits to 0 except bits 15..12 and 8 */
240 reg &= P_ASPM_CONTROL_MSK;
241 sky2_pci_write32(hw, PCI_DEV_REG4, reg);
243 reg = sky2_pci_read32(hw, PCI_DEV_REG5);
244 /* set all bits to 0 except bits 28 & 27 */
245 reg &= P_CTL_TIM_VMAIN_AV_MSK;
246 sky2_pci_write32(hw, PCI_DEV_REG5, reg);
248 sky2_pci_write32(hw, PCI_CFG_REG_1, 0);
250 /* Enable workaround for dev 4.107 on Yukon-Ultra & Extreme */
251 reg = sky2_read32(hw, B2_GP_IO);
252 reg |= GLB_GPIO_STAT_RACE_DIS;
253 sky2_write32(hw, B2_GP_IO, reg);
255 sky2_read32(hw, B2_GP_IO);
259 static void sky2_power_aux(struct sky2_hw *hw)
261 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
262 sky2_write8(hw, B2_Y2_CLK_GATE, 0);
264 /* enable bits are inverted */
265 sky2_write8(hw, B2_Y2_CLK_GATE,
266 Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
267 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
268 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
270 /* switch power to VAUX */
271 if (sky2_read16(hw, B0_CTST) & Y2_VAUX_AVAIL)
272 sky2_write8(hw, B0_POWER_CTRL,
273 (PC_VAUX_ENA | PC_VCC_ENA |
274 PC_VAUX_ON | PC_VCC_OFF));
277 static void sky2_gmac_reset(struct sky2_hw *hw, unsigned port)
281 /* disable all GMAC IRQ's */
282 sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
284 gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
285 gma_write16(hw, port, GM_MC_ADDR_H2, 0);
286 gma_write16(hw, port, GM_MC_ADDR_H3, 0);
287 gma_write16(hw, port, GM_MC_ADDR_H4, 0);
289 reg = gma_read16(hw, port, GM_RX_CTRL);
290 reg |= GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA;
291 gma_write16(hw, port, GM_RX_CTRL, reg);
294 /* flow control to advertise bits */
295 static const u16 copper_fc_adv[] = {
297 [FC_TX] = PHY_M_AN_ASP,
298 [FC_RX] = PHY_M_AN_PC,
299 [FC_BOTH] = PHY_M_AN_PC | PHY_M_AN_ASP,
302 /* flow control to advertise bits when using 1000BaseX */
303 static const u16 fiber_fc_adv[] = {
304 [FC_NONE] = PHY_M_P_NO_PAUSE_X,
305 [FC_TX] = PHY_M_P_ASYM_MD_X,
306 [FC_RX] = PHY_M_P_SYM_MD_X,
307 [FC_BOTH] = PHY_M_P_BOTH_MD_X,
310 /* flow control to GMA disable bits */
311 static const u16 gm_fc_disable[] = {
312 [FC_NONE] = GM_GPCR_FC_RX_DIS | GM_GPCR_FC_TX_DIS,
313 [FC_TX] = GM_GPCR_FC_RX_DIS,
314 [FC_RX] = GM_GPCR_FC_TX_DIS,
319 static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
321 struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
322 u16 ctrl, ct1000, adv, pg, ledctrl, ledover, reg;
324 if (sky2->autoneg == AUTONEG_ENABLE &&
325 !(hw->flags & SKY2_HW_NEWER_PHY)) {
326 u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
328 ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
330 ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
332 /* on PHY 88E1040 Rev.D0 (and newer) downshift control changed */
333 if (hw->chip_id == CHIP_ID_YUKON_EC)
334 /* set downshift counter to 3x and enable downshift */
335 ectrl |= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA;
337 /* set master & slave downshift counter to 1x */
338 ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
340 gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
343 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
344 if (sky2_is_copper(hw)) {
345 if (!(hw->flags & SKY2_HW_GIGABIT)) {
346 /* enable automatic crossover */
347 ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1;
349 if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
350 hw->chip_rev == CHIP_REV_YU_FE2_A0) {
353 /* Enable Class A driver for FE+ A0 */
354 spec = gm_phy_read(hw, port, PHY_MARV_FE_SPEC_2);
355 spec |= PHY_M_FESC_SEL_CL_A;
356 gm_phy_write(hw, port, PHY_MARV_FE_SPEC_2, spec);
359 /* disable energy detect */
360 ctrl &= ~PHY_M_PC_EN_DET_MSK;
362 /* enable automatic crossover */
363 ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO);
365 /* downshift on PHY 88E1112 and 88E1149 is changed */
366 if (sky2->autoneg == AUTONEG_ENABLE
367 && (hw->flags & SKY2_HW_NEWER_PHY)) {
368 /* set downshift counter to 3x and enable downshift */
369 ctrl &= ~PHY_M_PC_DSC_MSK;
370 ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA;
374 /* workaround for deviation #4.88 (CRC errors) */
375 /* disable Automatic Crossover */
377 ctrl &= ~PHY_M_PC_MDIX_MSK;
380 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
382 /* special setup for PHY 88E1112 Fiber */
383 if (hw->chip_id == CHIP_ID_YUKON_XL && (hw->flags & SKY2_HW_FIBRE_PHY)) {
384 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
386 /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */
387 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
388 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
389 ctrl &= ~PHY_M_MAC_MD_MSK;
390 ctrl |= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX);
391 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
393 if (hw->pmd_type == 'P') {
394 /* select page 1 to access Fiber registers */
395 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 1);
397 /* for SFP-module set SIGDET polarity to low */
398 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
399 ctrl |= PHY_M_FIB_SIGD_POL;
400 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
403 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
411 if (sky2->autoneg == AUTONEG_ENABLE) {
412 if (sky2_is_copper(hw)) {
413 if (sky2->advertising & ADVERTISED_1000baseT_Full)
414 ct1000 |= PHY_M_1000C_AFD;
415 if (sky2->advertising & ADVERTISED_1000baseT_Half)
416 ct1000 |= PHY_M_1000C_AHD;
417 if (sky2->advertising & ADVERTISED_100baseT_Full)
418 adv |= PHY_M_AN_100_FD;
419 if (sky2->advertising & ADVERTISED_100baseT_Half)
420 adv |= PHY_M_AN_100_HD;
421 if (sky2->advertising & ADVERTISED_10baseT_Full)
422 adv |= PHY_M_AN_10_FD;
423 if (sky2->advertising & ADVERTISED_10baseT_Half)
424 adv |= PHY_M_AN_10_HD;
426 adv |= copper_fc_adv[sky2->flow_mode];
427 } else { /* special defines for FIBER (88E1040S only) */
428 if (sky2->advertising & ADVERTISED_1000baseT_Full)
429 adv |= PHY_M_AN_1000X_AFD;
430 if (sky2->advertising & ADVERTISED_1000baseT_Half)
431 adv |= PHY_M_AN_1000X_AHD;
433 adv |= fiber_fc_adv[sky2->flow_mode];
436 /* Restart Auto-negotiation */
437 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
439 /* forced speed/duplex settings */
440 ct1000 = PHY_M_1000C_MSE;
442 /* Disable auto update for duplex flow control and speed */
443 reg |= GM_GPCR_AU_ALL_DIS;
445 switch (sky2->speed) {
447 ctrl |= PHY_CT_SP1000;
448 reg |= GM_GPCR_SPEED_1000;
451 ctrl |= PHY_CT_SP100;
452 reg |= GM_GPCR_SPEED_100;
456 if (sky2->duplex == DUPLEX_FULL) {
457 reg |= GM_GPCR_DUP_FULL;
458 ctrl |= PHY_CT_DUP_MD;
459 } else if (sky2->speed < SPEED_1000)
460 sky2->flow_mode = FC_NONE;
463 reg |= gm_fc_disable[sky2->flow_mode];
465 /* Forward pause packets to GMAC? */
466 if (sky2->flow_mode & FC_RX)
467 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
469 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
472 gma_write16(hw, port, GM_GP_CTRL, reg);
474 if (hw->flags & SKY2_HW_GIGABIT)
475 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
477 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
478 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
480 /* Setup Phy LED's */
481 ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS);
484 switch (hw->chip_id) {
485 case CHIP_ID_YUKON_FE:
486 /* on 88E3082 these bits are at 11..9 (shifted left) */
487 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1;
489 ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR);
491 /* delete ACT LED control bits */
492 ctrl &= ~PHY_M_FELP_LED1_MSK;
493 /* change ACT LED control to blink mode */
494 ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL);
495 gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
498 case CHIP_ID_YUKON_FE_P:
499 /* Enable Link Partner Next Page */
500 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
501 ctrl |= PHY_M_PC_ENA_LIP_NP;
503 /* disable Energy Detect and enable scrambler */
504 ctrl &= ~(PHY_M_PC_ENA_ENE_DT | PHY_M_PC_DIS_SCRAMB);
505 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
507 /* set LED2 -> ACT, LED1 -> LINK, LED0 -> SPEED */
508 ctrl = PHY_M_FELP_LED2_CTRL(LED_PAR_CTRL_ACT_BL) |
509 PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_LINK) |
510 PHY_M_FELP_LED0_CTRL(LED_PAR_CTRL_SPEED);
512 gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
515 case CHIP_ID_YUKON_XL:
516 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
518 /* select page 3 to access LED control register */
519 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
521 /* set LED Function Control register */
522 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
523 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
524 PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */
525 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
526 PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */
528 /* set Polarity Control register */
529 gm_phy_write(hw, port, PHY_MARV_PHY_STAT,
530 (PHY_M_POLC_LS1_P_MIX(4) |
531 PHY_M_POLC_IS0_P_MIX(4) |
532 PHY_M_POLC_LOS_CTRL(2) |
533 PHY_M_POLC_INIT_CTRL(2) |
534 PHY_M_POLC_STA1_CTRL(2) |
535 PHY_M_POLC_STA0_CTRL(2)));
537 /* restore page register */
538 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
541 case CHIP_ID_YUKON_EC_U:
542 case CHIP_ID_YUKON_EX:
543 case CHIP_ID_YUKON_SUPR:
544 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
546 /* select page 3 to access LED control register */
547 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
549 /* set LED Function Control register */
550 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
551 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
552 PHY_M_LEDC_INIT_CTRL(8) | /* 10 Mbps */
553 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
554 PHY_M_LEDC_STA0_CTRL(7)));/* 1000 Mbps */
556 /* set Blink Rate in LED Timer Control Register */
557 gm_phy_write(hw, port, PHY_MARV_INT_MASK,
558 ledctrl | PHY_M_LED_BLINK_RT(BLINK_84MS));
559 /* restore page register */
560 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
564 /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
565 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
567 /* turn off the Rx LED (LED_RX) */
568 ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
571 if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_UL_2) {
572 /* apply fixes in PHY AFE */
573 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 255);
575 /* increase differential signal amplitude in 10BASE-T */
576 gm_phy_write(hw, port, 0x18, 0xaa99);
577 gm_phy_write(hw, port, 0x17, 0x2011);
579 if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
580 /* fix for IEEE A/B Symmetry failure in 1000BASE-T */
581 gm_phy_write(hw, port, 0x18, 0xa204);
582 gm_phy_write(hw, port, 0x17, 0x2002);
585 /* set page register to 0 */
586 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
587 } else if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
588 hw->chip_rev == CHIP_REV_YU_FE2_A0) {
589 /* apply workaround for integrated resistors calibration */
590 gm_phy_write(hw, port, PHY_MARV_PAGE_ADDR, 17);
591 gm_phy_write(hw, port, PHY_MARV_PAGE_DATA, 0x3f60);
592 } else if (hw->chip_id != CHIP_ID_YUKON_EX &&
593 hw->chip_id < CHIP_ID_YUKON_SUPR) {
594 /* no effect on Yukon-XL */
595 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
597 if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) {
598 /* turn on 100 Mbps LED (LED_LINK100) */
599 ledover |= PHY_M_LED_MO_100(MO_LED_ON);
603 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
607 /* Enable phy interrupt on auto-negotiation complete (or link up) */
608 if (sky2->autoneg == AUTONEG_ENABLE)
609 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL);
611 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
614 static const u32 phy_power[] = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD };
615 static const u32 coma_mode[] = { PCI_Y2_PHY1_COMA, PCI_Y2_PHY2_COMA };
617 static void sky2_phy_power_up(struct sky2_hw *hw, unsigned port)
621 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
622 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
623 reg1 &= ~phy_power[port];
625 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
626 reg1 |= coma_mode[port];
628 sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
629 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
630 sky2_pci_read32(hw, PCI_DEV_REG1);
632 if (hw->chip_id == CHIP_ID_YUKON_FE)
633 gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_ANE);
634 else if (hw->flags & SKY2_HW_ADV_POWER_CTL)
635 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
638 static void sky2_phy_power_down(struct sky2_hw *hw, unsigned port)
643 /* release GPHY Control reset */
644 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
646 /* release GMAC reset */
647 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
649 if (hw->flags & SKY2_HW_NEWER_PHY) {
650 /* select page 2 to access MAC control register */
651 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
653 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
654 /* allow GMII Power Down */
655 ctrl &= ~PHY_M_MAC_GMIF_PUP;
656 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
658 /* set page register back to 0 */
659 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
662 /* setup General Purpose Control Register */
663 gma_write16(hw, port, GM_GP_CTRL,
664 GM_GPCR_FL_PASS | GM_GPCR_SPEED_100 | GM_GPCR_AU_ALL_DIS);
666 if (hw->chip_id != CHIP_ID_YUKON_EC) {
667 if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
668 /* select page 2 to access MAC control register */
669 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
671 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
672 /* enable Power Down */
673 ctrl |= PHY_M_PC_POW_D_ENA;
674 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
676 /* set page register back to 0 */
677 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
680 /* set IEEE compatible Power Down Mode (dev. #4.99) */
681 gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_PDOWN);
684 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
685 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
686 reg1 |= phy_power[port]; /* set PHY to PowerDown/COMA Mode */
687 sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
688 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
691 /* Force a renegotiation */
692 static void sky2_phy_reinit(struct sky2_port *sky2)
694 spin_lock_bh(&sky2->phy_lock);
695 sky2_phy_init(sky2->hw, sky2->port);
696 spin_unlock_bh(&sky2->phy_lock);
699 /* Put device in state to listen for Wake On Lan */
700 static void sky2_wol_init(struct sky2_port *sky2)
702 struct sky2_hw *hw = sky2->hw;
703 unsigned port = sky2->port;
704 enum flow_control save_mode;
708 /* Bring hardware out of reset */
709 sky2_write16(hw, B0_CTST, CS_RST_CLR);
710 sky2_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR);
712 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
713 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
716 * sky2_reset will re-enable on resume
718 save_mode = sky2->flow_mode;
719 ctrl = sky2->advertising;
721 sky2->advertising &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full);
722 sky2->flow_mode = FC_NONE;
724 spin_lock_bh(&sky2->phy_lock);
725 sky2_phy_power_up(hw, port);
726 sky2_phy_init(hw, port);
727 spin_unlock_bh(&sky2->phy_lock);
729 sky2->flow_mode = save_mode;
730 sky2->advertising = ctrl;
732 /* Set GMAC to no flow control and auto update for speed/duplex */
733 gma_write16(hw, port, GM_GP_CTRL,
734 GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA|
735 GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS);
737 /* Set WOL address */
738 memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR),
739 sky2->netdev->dev_addr, ETH_ALEN);
741 /* Turn on appropriate WOL control bits */
742 sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT);
744 if (sky2->wol & WAKE_PHY)
745 ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT;
747 ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT;
749 if (sky2->wol & WAKE_MAGIC)
750 ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT;
752 ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;;
754 ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT;
755 sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl);
757 /* Turn on legacy PCI-Express PME mode */
758 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
759 reg1 |= PCI_Y2_PME_LEGACY;
760 sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
763 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
767 static void sky2_set_tx_stfwd(struct sky2_hw *hw, unsigned port)
769 struct net_device *dev = hw->dev[port];
771 if ( (hw->chip_id == CHIP_ID_YUKON_EX &&
772 hw->chip_rev != CHIP_REV_YU_EX_A0) ||
773 hw->chip_id == CHIP_ID_YUKON_FE_P ||
774 hw->chip_id == CHIP_ID_YUKON_SUPR) {
775 /* Yukon-Extreme B0 and further Extreme devices */
776 /* enable Store & Forward mode for TX */
778 if (dev->mtu <= ETH_DATA_LEN)
779 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
780 TX_JUMBO_DIS | TX_STFW_ENA);
783 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
784 TX_JUMBO_ENA| TX_STFW_ENA);
786 if (dev->mtu <= ETH_DATA_LEN)
787 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_ENA);
789 /* set Tx GMAC FIFO Almost Empty Threshold */
790 sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
791 (ECU_JUMBO_WM << 16) | ECU_AE_THR);
793 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_DIS);
795 /* Can't do offload because of lack of store/forward */
796 dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | NETIF_F_ALL_CSUM);
801 static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
803 struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
807 const u8 *addr = hw->dev[port]->dev_addr;
809 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
810 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
812 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
814 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 && port == 1) {
815 /* WA DEV_472 -- looks like crossed wires on port 2 */
816 /* clear GMAC 1 Control reset */
817 sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR);
819 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET);
820 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR);
821 } while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL ||
822 gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 ||
823 gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0);
826 sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
828 /* Enable Transmit FIFO Underrun */
829 sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
831 spin_lock_bh(&sky2->phy_lock);
832 sky2_phy_power_up(hw, port);
833 sky2_phy_init(hw, port);
834 spin_unlock_bh(&sky2->phy_lock);
837 reg = gma_read16(hw, port, GM_PHY_ADDR);
838 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
840 for (i = GM_MIB_CNT_BASE; i <= GM_MIB_CNT_END; i += 4)
841 gma_read16(hw, port, i);
842 gma_write16(hw, port, GM_PHY_ADDR, reg);
844 /* transmit control */
845 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
847 /* receive control reg: unicast + multicast + no FCS */
848 gma_write16(hw, port, GM_RX_CTRL,
849 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
851 /* transmit flow control */
852 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
854 /* transmit parameter */
855 gma_write16(hw, port, GM_TX_PARAM,
856 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
857 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
858 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) |
859 TX_BACK_OFF_LIM(TX_BOF_LIM_DEF));
861 /* serial mode register */
862 reg = DATA_BLIND_VAL(DATA_BLIND_DEF) |
863 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
865 if (hw->dev[port]->mtu > ETH_DATA_LEN)
866 reg |= GM_SMOD_JUMBO_ENA;
868 gma_write16(hw, port, GM_SERIAL_MODE, reg);
870 /* virtual address for data */
871 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
873 /* physical address: used for pause frames */
874 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
876 /* ignore counter overflows */
877 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
878 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
879 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
881 /* Configure Rx MAC FIFO */
882 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
883 rx_reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
884 if (hw->chip_id == CHIP_ID_YUKON_EX ||
885 hw->chip_id == CHIP_ID_YUKON_FE_P)
886 rx_reg |= GMF_RX_OVER_ON;
888 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), rx_reg);
890 if (hw->chip_id == CHIP_ID_YUKON_XL) {
891 /* Hardware errata - clear flush mask */
892 sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), 0);
894 /* Flush Rx MAC FIFO on any flow control or error */
895 sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);
898 /* Set threshold to 0xa (64 bytes) + 1 to workaround pause bug */
899 reg = RX_GMF_FL_THR_DEF + 1;
900 /* Another magic mystery workaround from sk98lin */
901 if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
902 hw->chip_rev == CHIP_REV_YU_FE2_A0)
904 sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), reg);
906 /* Configure Tx MAC FIFO */
907 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
908 sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
910 /* On chips without ram buffer, pause is controled by MAC level */
911 if (!(hw->flags & SKY2_HW_RAM_BUFFER)) {
912 sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8);
913 sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8);
915 sky2_set_tx_stfwd(hw, port);
918 if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
919 hw->chip_rev == CHIP_REV_YU_FE2_A0) {
920 /* disable dynamic watermark */
921 reg = sky2_read16(hw, SK_REG(port, TX_GMF_EA));
922 reg &= ~TX_DYN_WM_ENA;
923 sky2_write16(hw, SK_REG(port, TX_GMF_EA), reg);
927 /* Assign Ram Buffer allocation to queue */
928 static void sky2_ramset(struct sky2_hw *hw, u16 q, u32 start, u32 space)
932 /* convert from K bytes to qwords used for hw register */
935 end = start + space - 1;
937 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
938 sky2_write32(hw, RB_ADDR(q, RB_START), start);
939 sky2_write32(hw, RB_ADDR(q, RB_END), end);
940 sky2_write32(hw, RB_ADDR(q, RB_WP), start);
941 sky2_write32(hw, RB_ADDR(q, RB_RP), start);
943 if (q == Q_R1 || q == Q_R2) {
944 u32 tp = space - space/4;
946 /* On receive queue's set the thresholds
947 * give receiver priority when > 3/4 full
948 * send pause when down to 2K
950 sky2_write32(hw, RB_ADDR(q, RB_RX_UTHP), tp);
951 sky2_write32(hw, RB_ADDR(q, RB_RX_LTHP), space/2);
954 sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp);
955 sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4);
957 /* Enable store & forward on Tx queue's because
958 * Tx FIFO is only 1K on Yukon
960 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
963 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
964 sky2_read8(hw, RB_ADDR(q, RB_CTRL));
967 /* Setup Bus Memory Interface */
968 static void sky2_qset(struct sky2_hw *hw, u16 q)
970 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET);
971 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT);
972 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON);
973 sky2_write32(hw, Q_ADDR(q, Q_WM), BMU_WM_DEFAULT);
976 /* Setup prefetch unit registers. This is the interface between
977 * hardware and driver list elements
979 static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr,
982 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
983 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR);
984 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), addr >> 32);
985 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), (u32) addr);
986 sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last);
987 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON);
989 sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL));
992 static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2)
994 struct sky2_tx_le *le = sky2->tx_le + sky2->tx_prod;
996 sky2->tx_prod = RING_NEXT(sky2->tx_prod, TX_RING_SIZE);
1001 static void tx_init(struct sky2_port *sky2)
1003 struct sky2_tx_le *le;
1005 sky2->tx_prod = sky2->tx_cons = 0;
1006 sky2->tx_tcpsum = 0;
1007 sky2->tx_last_mss = 0;
1009 le = get_tx_le(sky2);
1011 le->opcode = OP_ADDR64 | HW_OWNER;
1014 static inline struct tx_ring_info *tx_le_re(struct sky2_port *sky2,
1015 struct sky2_tx_le *le)
1017 return sky2->tx_ring + (le - sky2->tx_le);
1020 /* Update chip's next pointer */
1021 static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, u16 idx)
1023 /* Make sure write' to descriptors are complete before we tell hardware */
1025 sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx);
1027 /* Synchronize I/O on since next processor may write to tail */
1032 static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2)
1034 struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put;
1035 sky2->rx_put = RING_NEXT(sky2->rx_put, RX_LE_SIZE);
1040 /* Build description to hardware for one receive segment */
1041 static void sky2_rx_add(struct sky2_port *sky2, u8 op,
1042 dma_addr_t map, unsigned len)
1044 struct sky2_rx_le *le;
1046 if (sizeof(dma_addr_t) > sizeof(u32)) {
1047 le = sky2_next_rx(sky2);
1048 le->addr = cpu_to_le32(upper_32_bits(map));
1049 le->opcode = OP_ADDR64 | HW_OWNER;
1052 le = sky2_next_rx(sky2);
1053 le->addr = cpu_to_le32((u32) map);
1054 le->length = cpu_to_le16(len);
1055 le->opcode = op | HW_OWNER;
1058 /* Build description to hardware for one possibly fragmented skb */
1059 static void sky2_rx_submit(struct sky2_port *sky2,
1060 const struct rx_ring_info *re)
1064 sky2_rx_add(sky2, OP_PACKET, re->data_addr, sky2->rx_data_size);
1066 for (i = 0; i < skb_shinfo(re->skb)->nr_frags; i++)
1067 sky2_rx_add(sky2, OP_BUFFER, re->frag_addr[i], PAGE_SIZE);
1071 static int sky2_rx_map_skb(struct pci_dev *pdev, struct rx_ring_info *re,
1074 struct sk_buff *skb = re->skb;
1077 re->data_addr = pci_map_single(pdev, skb->data, size, PCI_DMA_FROMDEVICE);
1078 if (unlikely(pci_dma_mapping_error(pdev, re->data_addr)))
1081 pci_unmap_len_set(re, data_size, size);
1083 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
1084 re->frag_addr[i] = pci_map_page(pdev,
1085 skb_shinfo(skb)->frags[i].page,
1086 skb_shinfo(skb)->frags[i].page_offset,
1087 skb_shinfo(skb)->frags[i].size,
1088 PCI_DMA_FROMDEVICE);
1092 static void sky2_rx_unmap_skb(struct pci_dev *pdev, struct rx_ring_info *re)
1094 struct sk_buff *skb = re->skb;
1097 pci_unmap_single(pdev, re->data_addr, pci_unmap_len(re, data_size),
1098 PCI_DMA_FROMDEVICE);
1100 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
1101 pci_unmap_page(pdev, re->frag_addr[i],
1102 skb_shinfo(skb)->frags[i].size,
1103 PCI_DMA_FROMDEVICE);
1106 /* Tell chip where to start receive checksum.
1107 * Actually has two checksums, but set both same to avoid possible byte
1110 static void rx_set_checksum(struct sky2_port *sky2)
1112 struct sky2_rx_le *le = sky2_next_rx(sky2);
1114 le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN);
1116 le->opcode = OP_TCPSTART | HW_OWNER;
1118 sky2_write32(sky2->hw,
1119 Q_ADDR(rxqaddr[sky2->port], Q_CSR),
1120 sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
1124 * The RX Stop command will not work for Yukon-2 if the BMU does not
1125 * reach the end of packet and since we can't make sure that we have
1126 * incoming data, we must reset the BMU while it is not doing a DMA
1127 * transfer. Since it is possible that the RX path is still active,
1128 * the RX RAM buffer will be stopped first, so any possible incoming
1129 * data will not trigger a DMA. After the RAM buffer is stopped, the
1130 * BMU is polled until any DMA in progress is ended and only then it
1133 static void sky2_rx_stop(struct sky2_port *sky2)
1135 struct sky2_hw *hw = sky2->hw;
1136 unsigned rxq = rxqaddr[sky2->port];
1139 /* disable the RAM Buffer receive queue */
1140 sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD);
1142 for (i = 0; i < 0xffff; i++)
1143 if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL))
1144 == sky2_read8(hw, RB_ADDR(rxq, Q_RL)))
1147 printk(KERN_WARNING PFX "%s: receiver stop failed\n",
1148 sky2->netdev->name);
1150 sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST);
1152 /* reset the Rx prefetch unit */
1153 sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
1157 /* Clean out receive buffer area, assumes receiver hardware stopped */
1158 static void sky2_rx_clean(struct sky2_port *sky2)
1162 memset(sky2->rx_le, 0, RX_LE_BYTES);
1163 for (i = 0; i < sky2->rx_pending; i++) {
1164 struct rx_ring_info *re = sky2->rx_ring + i;
1167 sky2_rx_unmap_skb(sky2->hw->pdev, re);
1172 skb_queue_purge(&sky2->rx_recycle);
1175 /* Basic MII support */
1176 static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
1178 struct mii_ioctl_data *data = if_mii(ifr);
1179 struct sky2_port *sky2 = netdev_priv(dev);
1180 struct sky2_hw *hw = sky2->hw;
1181 int err = -EOPNOTSUPP;
1183 if (!netif_running(dev))
1184 return -ENODEV; /* Phy still in reset */
1188 data->phy_id = PHY_ADDR_MARV;
1194 spin_lock_bh(&sky2->phy_lock);
1195 err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val);
1196 spin_unlock_bh(&sky2->phy_lock);
1198 data->val_out = val;
1203 if (!capable(CAP_NET_ADMIN))
1206 spin_lock_bh(&sky2->phy_lock);
1207 err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f,
1209 spin_unlock_bh(&sky2->phy_lock);
1215 #ifdef SKY2_VLAN_TAG_USED
1216 static void sky2_set_vlan_mode(struct sky2_hw *hw, u16 port, bool onoff)
1219 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
1221 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
1224 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
1226 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
1231 static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
1233 struct sky2_port *sky2 = netdev_priv(dev);
1234 struct sky2_hw *hw = sky2->hw;
1235 u16 port = sky2->port;
1237 netif_tx_lock_bh(dev);
1238 napi_disable(&hw->napi);
1241 sky2_set_vlan_mode(hw, port, grp != NULL);
1243 sky2_read32(hw, B0_Y2_SP_LISR);
1244 napi_enable(&hw->napi);
1245 netif_tx_unlock_bh(dev);
1249 /* Amount of required worst case padding in rx buffer */
1250 static inline unsigned sky2_rx_pad(const struct sky2_hw *hw)
1252 return (hw->flags & SKY2_HW_RAM_BUFFER) ? 8 : 2;
1256 * Allocate an skb for receiving. If the MTU is large enough
1257 * make the skb non-linear with a fragment list of pages.
1259 static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2)
1261 struct sk_buff *skb;
1264 skb = __skb_dequeue(&sky2->rx_recycle);
1266 skb = netdev_alloc_skb(sky2->netdev, sky2->rx_data_size
1267 + sky2_rx_pad(sky2->hw));
1271 if (sky2->hw->flags & SKY2_HW_RAM_BUFFER) {
1272 unsigned char *start;
1274 * Workaround for a bug in FIFO that cause hang
1275 * if the FIFO if the receive buffer is not 64 byte aligned.
1276 * The buffer returned from netdev_alloc_skb is
1277 * aligned except if slab debugging is enabled.
1279 start = PTR_ALIGN(skb->data, 8);
1280 skb_reserve(skb, start - skb->data);
1282 skb_reserve(skb, NET_IP_ALIGN);
1284 for (i = 0; i < sky2->rx_nfrags; i++) {
1285 struct page *page = alloc_page(GFP_ATOMIC);
1289 skb_fill_page_desc(skb, i, page, 0, PAGE_SIZE);
1299 static inline void sky2_rx_update(struct sky2_port *sky2, unsigned rxq)
1301 sky2_put_idx(sky2->hw, rxq, sky2->rx_put);
1305 * Allocate and setup receiver buffer pool.
1306 * Normal case this ends up creating one list element for skb
1307 * in the receive ring. Worst case if using large MTU and each
1308 * allocation falls on a different 64 bit region, that results
1309 * in 6 list elements per ring entry.
1310 * One element is used for checksum enable/disable, and one
1311 * extra to avoid wrap.
1313 static int sky2_rx_start(struct sky2_port *sky2)
1315 struct sky2_hw *hw = sky2->hw;
1316 struct rx_ring_info *re;
1317 unsigned rxq = rxqaddr[sky2->port];
1318 unsigned i, size, thresh;
1320 sky2->rx_put = sky2->rx_next = 0;
1323 /* On PCI express lowering the watermark gives better performance */
1324 if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP))
1325 sky2_write32(hw, Q_ADDR(rxq, Q_WM), BMU_WM_PEX);
1327 /* These chips have no ram buffer?
1328 * MAC Rx RAM Read is controlled by hardware */
1329 if (hw->chip_id == CHIP_ID_YUKON_EC_U &&
1330 (hw->chip_rev == CHIP_REV_YU_EC_U_A1
1331 || hw->chip_rev == CHIP_REV_YU_EC_U_B0))
1332 sky2_write32(hw, Q_ADDR(rxq, Q_TEST), F_M_RX_RAM_DIS);
1334 sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1);
1336 if (!(hw->flags & SKY2_HW_NEW_LE))
1337 rx_set_checksum(sky2);
1339 /* Space needed for frame data + headers rounded up */
1340 size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8);
1342 /* Stopping point for hardware truncation */
1343 thresh = (size - 8) / sizeof(u32);
1345 sky2->rx_nfrags = size >> PAGE_SHIFT;
1346 BUG_ON(sky2->rx_nfrags > ARRAY_SIZE(re->frag_addr));
1348 /* Compute residue after pages */
1349 size -= sky2->rx_nfrags << PAGE_SHIFT;
1351 /* Optimize to handle small packets and headers */
1352 if (size < copybreak)
1354 if (size < ETH_HLEN)
1357 sky2->rx_data_size = size;
1359 skb_queue_head_init(&sky2->rx_recycle);
1362 for (i = 0; i < sky2->rx_pending; i++) {
1363 re = sky2->rx_ring + i;
1365 re->skb = sky2_rx_alloc(sky2);
1369 if (sky2_rx_map_skb(hw->pdev, re, sky2->rx_data_size)) {
1370 dev_kfree_skb(re->skb);
1375 sky2_rx_submit(sky2, re);
1379 * The receiver hangs if it receives frames larger than the
1380 * packet buffer. As a workaround, truncate oversize frames, but
1381 * the register is limited to 9 bits, so if you do frames > 2052
1382 * you better get the MTU right!
1385 sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_OFF);
1387 sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), thresh);
1388 sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON);
1391 /* Tell chip about available buffers */
1392 sky2_rx_update(sky2, rxq);
1395 sky2_rx_clean(sky2);
1399 /* Bring up network interface. */
1400 static int sky2_up(struct net_device *dev)
1402 struct sky2_port *sky2 = netdev_priv(dev);
1403 struct sky2_hw *hw = sky2->hw;
1404 unsigned port = sky2->port;
1406 int cap, err = -ENOMEM;
1407 struct net_device *otherdev = hw->dev[sky2->port^1];
1410 * On dual port PCI-X card, there is an problem where status
1411 * can be received out of order due to split transactions
1413 if (otherdev && netif_running(otherdev) &&
1414 (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) {
1417 cmd = sky2_pci_read16(hw, cap + PCI_X_CMD);
1418 cmd &= ~PCI_X_CMD_MAX_SPLIT;
1419 sky2_pci_write16(hw, cap + PCI_X_CMD, cmd);
1423 netif_carrier_off(dev);
1425 /* must be power of 2 */
1426 sky2->tx_le = pci_alloc_consistent(hw->pdev,
1428 sizeof(struct sky2_tx_le),
1433 sky2->tx_ring = kcalloc(TX_RING_SIZE, sizeof(struct tx_ring_info),
1440 sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES,
1444 memset(sky2->rx_le, 0, RX_LE_BYTES);
1446 sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct rx_ring_info),
1451 sky2_mac_init(hw, port);
1453 /* Register is number of 4K blocks on internal RAM buffer. */
1454 ramsize = sky2_read8(hw, B2_E_0) * 4;
1458 hw->flags |= SKY2_HW_RAM_BUFFER;
1459 pr_debug(PFX "%s: ram buffer %dK\n", dev->name, ramsize);
1461 rxspace = ramsize / 2;
1463 rxspace = 8 + (2*(ramsize - 16))/3;
1465 sky2_ramset(hw, rxqaddr[port], 0, rxspace);
1466 sky2_ramset(hw, txqaddr[port], rxspace, ramsize - rxspace);
1468 /* Make sure SyncQ is disabled */
1469 sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL),
1473 sky2_qset(hw, txqaddr[port]);
1475 /* This is copied from sk98lin 10.0.5.3; no one tells me about erratta's */
1476 if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev == CHIP_REV_YU_EX_B0)
1477 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_TEST), F_TX_CHK_AUTO_OFF);
1479 /* Set almost empty threshold */
1480 if (hw->chip_id == CHIP_ID_YUKON_EC_U
1481 && hw->chip_rev == CHIP_REV_YU_EC_U_A0)
1482 sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), ECU_TXFF_LEV);
1484 sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map,
1487 #ifdef SKY2_VLAN_TAG_USED
1488 sky2_set_vlan_mode(hw, port, sky2->vlgrp != NULL);
1491 err = sky2_rx_start(sky2);
1495 /* Enable interrupts from phy/mac for port */
1496 imask = sky2_read32(hw, B0_IMSK);
1497 imask |= portirq_msk[port];
1498 sky2_write32(hw, B0_IMSK, imask);
1499 sky2_read32(hw, B0_IMSK);
1501 sky2_set_multicast(dev);
1503 if (netif_msg_ifup(sky2))
1504 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
1509 pci_free_consistent(hw->pdev, RX_LE_BYTES,
1510 sky2->rx_le, sky2->rx_le_map);
1514 pci_free_consistent(hw->pdev,
1515 TX_RING_SIZE * sizeof(struct sky2_tx_le),
1516 sky2->tx_le, sky2->tx_le_map);
1519 kfree(sky2->tx_ring);
1520 kfree(sky2->rx_ring);
1522 sky2->tx_ring = NULL;
1523 sky2->rx_ring = NULL;
1527 /* Modular subtraction in ring */
1528 static inline int tx_dist(unsigned tail, unsigned head)
1530 return (head - tail) & (TX_RING_SIZE - 1);
1533 /* Number of list elements available for next tx */
1534 static inline int tx_avail(const struct sky2_port *sky2)
1536 return sky2->tx_pending - tx_dist(sky2->tx_cons, sky2->tx_prod);
1539 /* Estimate of number of transmit list elements required */
1540 static unsigned tx_le_req(const struct sk_buff *skb)
1544 count = sizeof(dma_addr_t) / sizeof(u32);
1545 count += skb_shinfo(skb)->nr_frags * count;
1547 if (skb_is_gso(skb))
1550 if (skb->ip_summed == CHECKSUM_PARTIAL)
1557 * Put one packet in ring for transmit.
1558 * A single packet can generate multiple list elements, and
1559 * the number of ring elements will probably be less than the number
1560 * of list elements used.
1562 static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
1564 struct sky2_port *sky2 = netdev_priv(dev);
1565 struct sky2_hw *hw = sky2->hw;
1566 struct sky2_tx_le *le = NULL;
1567 struct tx_ring_info *re;
1568 unsigned i, len, first_slot;
1573 if (unlikely(tx_avail(sky2) < tx_le_req(skb)))
1574 return NETDEV_TX_BUSY;
1576 len = skb_headlen(skb);
1577 mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
1579 if (pci_dma_mapping_error(hw->pdev, mapping))
1582 first_slot = sky2->tx_prod;
1583 if (unlikely(netif_msg_tx_queued(sky2)))
1584 printk(KERN_DEBUG "%s: tx queued, slot %u, len %d\n",
1585 dev->name, first_slot, skb->len);
1587 /* Send high bits if needed */
1588 if (sizeof(dma_addr_t) > sizeof(u32)) {
1589 le = get_tx_le(sky2);
1590 le->addr = cpu_to_le32(upper_32_bits(mapping));
1591 le->opcode = OP_ADDR64 | HW_OWNER;
1594 /* Check for TCP Segmentation Offload */
1595 mss = skb_shinfo(skb)->gso_size;
1598 if (!(hw->flags & SKY2_HW_NEW_LE))
1599 mss += ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb);
1601 if (mss != sky2->tx_last_mss) {
1602 le = get_tx_le(sky2);
1603 le->addr = cpu_to_le32(mss);
1605 if (hw->flags & SKY2_HW_NEW_LE)
1606 le->opcode = OP_MSS | HW_OWNER;
1608 le->opcode = OP_LRGLEN | HW_OWNER;
1609 sky2->tx_last_mss = mss;
1614 #ifdef SKY2_VLAN_TAG_USED
1615 /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */
1616 if (sky2->vlgrp && vlan_tx_tag_present(skb)) {
1618 le = get_tx_le(sky2);
1620 le->opcode = OP_VLAN|HW_OWNER;
1622 le->opcode |= OP_VLAN;
1623 le->length = cpu_to_be16(vlan_tx_tag_get(skb));
1628 /* Handle TCP checksum offload */
1629 if (skb->ip_summed == CHECKSUM_PARTIAL) {
1630 /* On Yukon EX (some versions) encoding change. */
1631 if (hw->flags & SKY2_HW_AUTO_TX_SUM)
1632 ctrl |= CALSUM; /* auto checksum */
1634 const unsigned offset = skb_transport_offset(skb);
1637 tcpsum = offset << 16; /* sum start */
1638 tcpsum |= offset + skb->csum_offset; /* sum write */
1640 ctrl |= CALSUM | WR_SUM | INIT_SUM | LOCK_SUM;
1641 if (ip_hdr(skb)->protocol == IPPROTO_UDP)
1644 if (tcpsum != sky2->tx_tcpsum) {
1645 sky2->tx_tcpsum = tcpsum;
1647 le = get_tx_le(sky2);
1648 le->addr = cpu_to_le32(tcpsum);
1649 le->length = 0; /* initial checksum value */
1650 le->ctrl = 1; /* one packet */
1651 le->opcode = OP_TCPLISW | HW_OWNER;
1656 le = get_tx_le(sky2);
1657 le->addr = cpu_to_le32((u32) mapping);
1658 le->length = cpu_to_le16(len);
1660 le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER);
1662 re = tx_le_re(sky2, le);
1664 pci_unmap_addr_set(re, mapaddr, mapping);
1665 pci_unmap_len_set(re, maplen, len);
1667 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
1668 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1670 mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset,
1671 frag->size, PCI_DMA_TODEVICE);
1673 if (pci_dma_mapping_error(hw->pdev, mapping))
1674 goto mapping_unwind;
1676 if (sizeof(dma_addr_t) > sizeof(u32)) {
1677 le = get_tx_le(sky2);
1678 le->addr = cpu_to_le32(upper_32_bits(mapping));
1680 le->opcode = OP_ADDR64 | HW_OWNER;
1683 le = get_tx_le(sky2);
1684 le->addr = cpu_to_le32((u32) mapping);
1685 le->length = cpu_to_le16(frag->size);
1687 le->opcode = OP_BUFFER | HW_OWNER;
1689 re = tx_le_re(sky2, le);
1691 pci_unmap_addr_set(re, mapaddr, mapping);
1692 pci_unmap_len_set(re, maplen, frag->size);
1697 if (tx_avail(sky2) <= MAX_SKB_TX_LE)
1698 netif_stop_queue(dev);
1700 sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod);
1702 return NETDEV_TX_OK;
1705 for (i = first_slot; i != sky2->tx_prod; i = RING_NEXT(i, TX_RING_SIZE)) {
1706 le = sky2->tx_le + i;
1707 re = sky2->tx_ring + i;
1709 switch(le->opcode & ~HW_OWNER) {
1712 pci_unmap_single(hw->pdev,
1713 pci_unmap_addr(re, mapaddr),
1714 pci_unmap_len(re, maplen),
1718 pci_unmap_page(hw->pdev, pci_unmap_addr(re, mapaddr),
1719 pci_unmap_len(re, maplen),
1725 sky2->tx_prod = first_slot;
1727 if (net_ratelimit())
1728 dev_warn(&hw->pdev->dev, "%s: tx mapping error\n", dev->name);
1730 return NETDEV_TX_OK;
1734 * Free ring elements from starting at tx_cons until "done"
1736 * NB: the hardware will tell us about partial completion of multi-part
1737 * buffers so make sure not to free skb to early.
1739 static void sky2_tx_complete(struct sky2_port *sky2, u16 done)
1741 struct net_device *dev = sky2->netdev;
1742 struct pci_dev *pdev = sky2->hw->pdev;
1745 BUG_ON(done >= TX_RING_SIZE);
1747 for (idx = sky2->tx_cons; idx != done;
1748 idx = RING_NEXT(idx, TX_RING_SIZE)) {
1749 struct sky2_tx_le *le = sky2->tx_le + idx;
1750 struct tx_ring_info *re = sky2->tx_ring + idx;
1752 switch(le->opcode & ~HW_OWNER) {
1755 pci_unmap_single(pdev,
1756 pci_unmap_addr(re, mapaddr),
1757 pci_unmap_len(re, maplen),
1761 pci_unmap_page(pdev, pci_unmap_addr(re, mapaddr),
1762 pci_unmap_len(re, maplen),
1767 if (le->ctrl & EOP) {
1768 struct sk_buff *skb = re->skb;
1770 if (unlikely(netif_msg_tx_done(sky2)))
1771 printk(KERN_DEBUG "%s: tx done %u\n",
1774 dev->stats.tx_packets++;
1775 dev->stats.tx_bytes += skb->len;
1777 if (skb_queue_len(&sky2->rx_recycle) < sky2->rx_pending
1778 && skb_recycle_check(skb, sky2->rx_data_size
1779 + sky2_rx_pad(sky2->hw)))
1780 __skb_queue_head(&sky2->rx_recycle, skb);
1782 dev_kfree_skb_any(skb);
1784 sky2->tx_next = RING_NEXT(idx, TX_RING_SIZE);
1788 sky2->tx_cons = idx;
1791 if (tx_avail(sky2) > MAX_SKB_TX_LE + 4)
1792 netif_wake_queue(dev);
1795 /* Cleanup all untransmitted buffers, assume transmitter not running */
1796 static void sky2_tx_clean(struct net_device *dev)
1798 struct sky2_port *sky2 = netdev_priv(dev);
1800 netif_tx_lock_bh(dev);
1801 sky2_tx_complete(sky2, sky2->tx_prod);
1802 netif_tx_unlock_bh(dev);
1805 /* Network shutdown */
1806 static int sky2_down(struct net_device *dev)
1808 struct sky2_port *sky2 = netdev_priv(dev);
1809 struct sky2_hw *hw = sky2->hw;
1810 unsigned port = sky2->port;
1814 /* Never really got started! */
1818 if (netif_msg_ifdown(sky2))
1819 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
1821 /* Force flow control off */
1822 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1824 /* Stop transmitter */
1825 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP);
1826 sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR));
1828 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
1829 RB_RST_SET | RB_DIS_OP_MD);
1831 ctrl = gma_read16(hw, port, GM_GP_CTRL);
1832 ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA);
1833 gma_write16(hw, port, GM_GP_CTRL, ctrl);
1835 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
1837 /* Workaround shared GMAC reset */
1838 if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0
1839 && port == 0 && hw->dev[1] && netif_running(hw->dev[1])))
1840 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
1842 /* Disable Force Sync bit and Enable Alloc bit */
1843 sky2_write8(hw, SK_REG(port, TXA_CTRL),
1844 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
1846 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
1847 sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
1848 sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
1850 /* Reset the PCI FIFO of the async Tx queue */
1851 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR),
1852 BMU_RST_SET | BMU_FIFO_RST);
1854 /* Reset the Tx prefetch units */
1855 sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL),
1858 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
1860 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
1861 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
1863 /* Force any delayed status interrrupt and NAPI */
1864 sky2_write32(hw, STAT_LEV_TIMER_CNT, 0);
1865 sky2_write32(hw, STAT_TX_TIMER_CNT, 0);
1866 sky2_write32(hw, STAT_ISR_TIMER_CNT, 0);
1867 sky2_read8(hw, STAT_ISR_TIMER_CTRL);
1871 /* Disable port IRQ */
1872 imask = sky2_read32(hw, B0_IMSK);
1873 imask &= ~portirq_msk[port];
1874 sky2_write32(hw, B0_IMSK, imask);
1875 sky2_read32(hw, B0_IMSK);
1877 synchronize_irq(hw->pdev->irq);
1878 napi_synchronize(&hw->napi);
1880 sky2_phy_power_down(hw, port);
1882 /* turn off LED's */
1883 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
1886 sky2_rx_clean(sky2);
1888 pci_free_consistent(hw->pdev, RX_LE_BYTES,
1889 sky2->rx_le, sky2->rx_le_map);
1890 kfree(sky2->rx_ring);
1892 pci_free_consistent(hw->pdev,
1893 TX_RING_SIZE * sizeof(struct sky2_tx_le),
1894 sky2->tx_le, sky2->tx_le_map);
1895 kfree(sky2->tx_ring);
1900 sky2->rx_ring = NULL;
1901 sky2->tx_ring = NULL;
1906 static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux)
1908 if (hw->flags & SKY2_HW_FIBRE_PHY)
1911 if (!(hw->flags & SKY2_HW_GIGABIT)) {
1912 if (aux & PHY_M_PS_SPEED_100)
1918 switch (aux & PHY_M_PS_SPEED_MSK) {
1919 case PHY_M_PS_SPEED_1000:
1921 case PHY_M_PS_SPEED_100:
1928 static void sky2_link_up(struct sky2_port *sky2)
1930 struct sky2_hw *hw = sky2->hw;
1931 unsigned port = sky2->port;
1933 static const char *fc_name[] = {
1941 reg = gma_read16(hw, port, GM_GP_CTRL);
1942 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
1943 gma_write16(hw, port, GM_GP_CTRL, reg);
1945 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
1947 netif_carrier_on(sky2->netdev);
1949 mod_timer(&hw->watchdog_timer, jiffies + 1);
1951 /* Turn on link LED */
1952 sky2_write8(hw, SK_REG(port, LNK_LED_REG),
1953 LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF);
1955 if (netif_msg_link(sky2))
1956 printk(KERN_INFO PFX
1957 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
1958 sky2->netdev->name, sky2->speed,
1959 sky2->duplex == DUPLEX_FULL ? "full" : "half",
1960 fc_name[sky2->flow_status]);
1963 static void sky2_link_down(struct sky2_port *sky2)
1965 struct sky2_hw *hw = sky2->hw;
1966 unsigned port = sky2->port;
1969 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
1971 reg = gma_read16(hw, port, GM_GP_CTRL);
1972 reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
1973 gma_write16(hw, port, GM_GP_CTRL, reg);
1975 netif_carrier_off(sky2->netdev);
1977 /* Turn on link LED */
1978 sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
1980 if (netif_msg_link(sky2))
1981 printk(KERN_INFO PFX "%s: Link is down.\n", sky2->netdev->name);
1983 sky2_phy_init(hw, port);
1986 static enum flow_control sky2_flow(int rx, int tx)
1989 return tx ? FC_BOTH : FC_RX;
1991 return tx ? FC_TX : FC_NONE;
1994 static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux)
1996 struct sky2_hw *hw = sky2->hw;
1997 unsigned port = sky2->port;
2000 advert = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV);
2001 lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP);
2002 if (lpa & PHY_M_AN_RF) {
2003 printk(KERN_ERR PFX "%s: remote fault", sky2->netdev->name);
2007 if (!(aux & PHY_M_PS_SPDUP_RES)) {
2008 printk(KERN_ERR PFX "%s: speed/duplex mismatch",
2009 sky2->netdev->name);
2013 sky2->speed = sky2_phy_speed(hw, aux);
2014 sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
2016 /* Since the pause result bits seem to in different positions on
2017 * different chips. look at registers.
2019 if (hw->flags & SKY2_HW_FIBRE_PHY) {
2020 /* Shift for bits in fiber PHY */
2021 advert &= ~(ADVERTISE_PAUSE_CAP|ADVERTISE_PAUSE_ASYM);
2022 lpa &= ~(LPA_PAUSE_CAP|LPA_PAUSE_ASYM);
2024 if (advert & ADVERTISE_1000XPAUSE)
2025 advert |= ADVERTISE_PAUSE_CAP;
2026 if (advert & ADVERTISE_1000XPSE_ASYM)
2027 advert |= ADVERTISE_PAUSE_ASYM;
2028 if (lpa & LPA_1000XPAUSE)
2029 lpa |= LPA_PAUSE_CAP;
2030 if (lpa & LPA_1000XPAUSE_ASYM)
2031 lpa |= LPA_PAUSE_ASYM;
2034 sky2->flow_status = FC_NONE;
2035 if (advert & ADVERTISE_PAUSE_CAP) {
2036 if (lpa & LPA_PAUSE_CAP)
2037 sky2->flow_status = FC_BOTH;
2038 else if (advert & ADVERTISE_PAUSE_ASYM)
2039 sky2->flow_status = FC_RX;
2040 } else if (advert & ADVERTISE_PAUSE_ASYM) {
2041 if ((lpa & LPA_PAUSE_CAP) && (lpa & LPA_PAUSE_ASYM))
2042 sky2->flow_status = FC_TX;
2045 if (sky2->duplex == DUPLEX_HALF && sky2->speed < SPEED_1000
2046 && !(hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX))
2047 sky2->flow_status = FC_NONE;
2049 if (sky2->flow_status & FC_TX)
2050 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
2052 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
2057 /* Interrupt from PHY */
2058 static void sky2_phy_intr(struct sky2_hw *hw, unsigned port)
2060 struct net_device *dev = hw->dev[port];
2061 struct sky2_port *sky2 = netdev_priv(dev);
2062 u16 istatus, phystat;
2064 if (!netif_running(dev))
2067 spin_lock(&sky2->phy_lock);
2068 istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
2069 phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
2071 if (netif_msg_intr(sky2))
2072 printk(KERN_INFO PFX "%s: phy interrupt status 0x%x 0x%x\n",
2073 sky2->netdev->name, istatus, phystat);
2075 if (sky2->autoneg == AUTONEG_ENABLE && (istatus & PHY_M_IS_AN_COMPL)) {
2076 if (sky2_autoneg_done(sky2, phystat) == 0)
2081 if (istatus & PHY_M_IS_LSP_CHANGE)
2082 sky2->speed = sky2_phy_speed(hw, phystat);
2084 if (istatus & PHY_M_IS_DUP_CHANGE)
2086 (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
2088 if (istatus & PHY_M_IS_LST_CHANGE) {
2089 if (phystat & PHY_M_PS_LINK_UP)
2092 sky2_link_down(sky2);
2095 spin_unlock(&sky2->phy_lock);
2098 /* Transmit timeout is only called if we are running, carrier is up
2099 * and tx queue is full (stopped).
2101 static void sky2_tx_timeout(struct net_device *dev)
2103 struct sky2_port *sky2 = netdev_priv(dev);
2104 struct sky2_hw *hw = sky2->hw;
2106 if (netif_msg_timer(sky2))
2107 printk(KERN_ERR PFX "%s: tx timeout\n", dev->name);
2109 printk(KERN_DEBUG PFX "%s: transmit ring %u .. %u report=%u done=%u\n",
2110 dev->name, sky2->tx_cons, sky2->tx_prod,
2111 sky2_read16(hw, sky2->port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX),
2112 sky2_read16(hw, Q_ADDR(txqaddr[sky2->port], Q_DONE)));
2114 /* can't restart safely under softirq */
2115 schedule_work(&hw->restart_work);
2118 static int sky2_change_mtu(struct net_device *dev, int new_mtu)
2120 struct sky2_port *sky2 = netdev_priv(dev);
2121 struct sky2_hw *hw = sky2->hw;
2122 unsigned port = sky2->port;
2127 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
2130 if (new_mtu > ETH_DATA_LEN &&
2131 (hw->chip_id == CHIP_ID_YUKON_FE ||
2132 hw->chip_id == CHIP_ID_YUKON_FE_P))
2135 if (!netif_running(dev)) {
2140 imask = sky2_read32(hw, B0_IMSK);
2141 sky2_write32(hw, B0_IMSK, 0);
2143 dev->trans_start = jiffies; /* prevent tx timeout */
2144 netif_stop_queue(dev);
2145 napi_disable(&hw->napi);
2147 synchronize_irq(hw->pdev->irq);
2149 if (!(hw->flags & SKY2_HW_RAM_BUFFER))
2150 sky2_set_tx_stfwd(hw, port);
2152 ctl = gma_read16(hw, port, GM_GP_CTRL);
2153 gma_write16(hw, port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA);
2155 sky2_rx_clean(sky2);
2159 mode = DATA_BLIND_VAL(DATA_BLIND_DEF) |
2160 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
2162 if (dev->mtu > ETH_DATA_LEN)
2163 mode |= GM_SMOD_JUMBO_ENA;
2165 gma_write16(hw, port, GM_SERIAL_MODE, mode);
2167 sky2_write8(hw, RB_ADDR(rxqaddr[port], RB_CTRL), RB_ENA_OP_MD);
2169 err = sky2_rx_start(sky2);
2170 sky2_write32(hw, B0_IMSK, imask);
2172 sky2_read32(hw, B0_Y2_SP_LISR);
2173 napi_enable(&hw->napi);
2178 gma_write16(hw, port, GM_GP_CTRL, ctl);
2180 netif_wake_queue(dev);
2186 /* For small just reuse existing skb for next receive */
2187 static struct sk_buff *receive_copy(struct sky2_port *sky2,
2188 const struct rx_ring_info *re,
2191 struct sk_buff *skb;
2193 skb = netdev_alloc_skb(sky2->netdev, length + 2);
2195 skb_reserve(skb, 2);
2196 pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->data_addr,
2197 length, PCI_DMA_FROMDEVICE);
2198 skb_copy_from_linear_data(re->skb, skb->data, length);
2199 skb->ip_summed = re->skb->ip_summed;
2200 skb->csum = re->skb->csum;
2201 pci_dma_sync_single_for_device(sky2->hw->pdev, re->data_addr,
2202 length, PCI_DMA_FROMDEVICE);
2203 re->skb->ip_summed = CHECKSUM_NONE;
2204 skb_put(skb, length);
2209 /* Adjust length of skb with fragments to match received data */
2210 static void skb_put_frags(struct sk_buff *skb, unsigned int hdr_space,
2211 unsigned int length)
2216 /* put header into skb */
2217 size = min(length, hdr_space);
2222 num_frags = skb_shinfo(skb)->nr_frags;
2223 for (i = 0; i < num_frags; i++) {
2224 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2227 /* don't need this page */
2228 __free_page(frag->page);
2229 --skb_shinfo(skb)->nr_frags;
2231 size = min(length, (unsigned) PAGE_SIZE);
2234 skb->data_len += size;
2235 skb->truesize += size;
2242 /* Normal packet - take skb from ring element and put in a new one */
2243 static struct sk_buff *receive_new(struct sky2_port *sky2,
2244 struct rx_ring_info *re,
2245 unsigned int length)
2247 struct sk_buff *skb, *nskb;
2248 unsigned hdr_space = sky2->rx_data_size;
2250 /* Don't be tricky about reusing pages (yet) */
2251 nskb = sky2_rx_alloc(sky2);
2252 if (unlikely(!nskb))
2256 sky2_rx_unmap_skb(sky2->hw->pdev, re);
2258 prefetch(skb->data);
2260 if (sky2_rx_map_skb(sky2->hw->pdev, re, hdr_space)) {
2261 dev_kfree_skb(nskb);
2266 if (skb_shinfo(skb)->nr_frags)
2267 skb_put_frags(skb, hdr_space, length);
2269 skb_put(skb, length);
2274 * Receive one packet.
2275 * For larger packets, get new buffer.
2277 static struct sk_buff *sky2_receive(struct net_device *dev,
2278 u16 length, u32 status)
2280 struct sky2_port *sky2 = netdev_priv(dev);
2281 struct rx_ring_info *re = sky2->rx_ring + sky2->rx_next;
2282 struct sk_buff *skb = NULL;
2283 u16 count = (status & GMR_FS_LEN) >> 16;
2285 #ifdef SKY2_VLAN_TAG_USED
2286 /* Account for vlan tag */
2287 if (sky2->vlgrp && (status & GMR_FS_VLAN))
2291 if (unlikely(netif_msg_rx_status(sky2)))
2292 printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n",
2293 dev->name, sky2->rx_next, status, length);
2295 sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending;
2296 prefetch(sky2->rx_ring + sky2->rx_next);
2298 /* This chip has hardware problems that generates bogus status.
2299 * So do only marginal checking and expect higher level protocols
2300 * to handle crap frames.
2302 if (sky2->hw->chip_id == CHIP_ID_YUKON_FE_P &&
2303 sky2->hw->chip_rev == CHIP_REV_YU_FE2_A0 &&
2307 if (status & GMR_FS_ANY_ERR)
2310 if (!(status & GMR_FS_RX_OK))
2313 /* if length reported by DMA does not match PHY, packet was truncated */
2314 if (length != count)
2318 if (length < copybreak)
2319 skb = receive_copy(sky2, re, length);
2321 skb = receive_new(sky2, re, length);
2323 sky2_rx_submit(sky2, re);
2328 /* Truncation of overlength packets
2329 causes PHY length to not match MAC length */
2330 ++dev->stats.rx_length_errors;
2331 if (netif_msg_rx_err(sky2) && net_ratelimit())
2332 pr_info(PFX "%s: rx length error: status %#x length %d\n",
2333 dev->name, status, length);
2337 ++dev->stats.rx_errors;
2338 if (status & GMR_FS_RX_FF_OV) {
2339 dev->stats.rx_over_errors++;
2343 if (netif_msg_rx_err(sky2) && net_ratelimit())
2344 printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n",
2345 dev->name, status, length);
2347 if (status & (GMR_FS_LONG_ERR | GMR_FS_UN_SIZE))
2348 dev->stats.rx_length_errors++;
2349 if (status & GMR_FS_FRAGMENT)
2350 dev->stats.rx_frame_errors++;
2351 if (status & GMR_FS_CRC_ERR)
2352 dev->stats.rx_crc_errors++;
2357 /* Transmit complete */
2358 static inline void sky2_tx_done(struct net_device *dev, u16 last)
2360 struct sky2_port *sky2 = netdev_priv(dev);
2362 if (netif_running(dev)) {
2364 sky2_tx_complete(sky2, last);
2365 netif_tx_unlock(dev);
2369 static inline void sky2_skb_rx(const struct sky2_port *sky2,
2370 u32 status, struct sk_buff *skb)
2372 #ifdef SKY2_VLAN_TAG_USED
2373 u16 vlan_tag = be16_to_cpu(sky2->rx_tag);
2374 if (sky2->vlgrp && (status & GMR_FS_VLAN)) {
2375 if (skb->ip_summed == CHECKSUM_NONE)
2376 vlan_hwaccel_receive_skb(skb, sky2->vlgrp, vlan_tag);
2378 vlan_gro_receive(&sky2->hw->napi, sky2->vlgrp,
2383 if (skb->ip_summed == CHECKSUM_NONE)
2384 netif_receive_skb(skb);
2386 napi_gro_receive(&sky2->hw->napi, skb);
2389 static inline void sky2_rx_done(struct sky2_hw *hw, unsigned port,
2390 unsigned packets, unsigned bytes)
2393 struct net_device *dev = hw->dev[port];
2395 dev->stats.rx_packets += packets;
2396 dev->stats.rx_bytes += bytes;
2397 dev->last_rx = jiffies;
2398 sky2_rx_update(netdev_priv(dev), rxqaddr[port]);
2402 /* Process status response ring */
2403 static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx)
2406 unsigned int total_bytes[2] = { 0 };
2407 unsigned int total_packets[2] = { 0 };
2411 struct sky2_port *sky2;
2412 struct sky2_status_le *le = hw->st_le + hw->st_idx;
2414 struct net_device *dev;
2415 struct sk_buff *skb;
2418 u8 opcode = le->opcode;
2420 if (!(opcode & HW_OWNER))
2423 hw->st_idx = RING_NEXT(hw->st_idx, STATUS_RING_SIZE);
2425 port = le->css & CSS_LINK_BIT;
2426 dev = hw->dev[port];
2427 sky2 = netdev_priv(dev);
2428 length = le16_to_cpu(le->length);
2429 status = le32_to_cpu(le->status);
2432 switch (opcode & ~HW_OWNER) {
2434 total_packets[port]++;
2435 total_bytes[port] += length;
2436 skb = sky2_receive(dev, length, status);
2437 if (unlikely(!skb)) {
2438 dev->stats.rx_dropped++;
2442 /* This chip reports checksum status differently */
2443 if (hw->flags & SKY2_HW_NEW_LE) {
2444 if (sky2->rx_csum &&
2445 (le->css & (CSS_ISIPV4 | CSS_ISIPV6)) &&
2446 (le->css & CSS_TCPUDPCSOK))
2447 skb->ip_summed = CHECKSUM_UNNECESSARY;
2449 skb->ip_summed = CHECKSUM_NONE;
2452 skb->protocol = eth_type_trans(skb, dev);
2454 sky2_skb_rx(sky2, status, skb);
2456 /* Stop after net poll weight */
2457 if (++work_done >= to_do)
2461 #ifdef SKY2_VLAN_TAG_USED
2463 sky2->rx_tag = length;
2467 sky2->rx_tag = length;
2474 /* If this happens then driver assuming wrong format */
2475 if (unlikely(hw->flags & SKY2_HW_NEW_LE)) {
2476 if (net_ratelimit())
2477 printk(KERN_NOTICE "%s: unexpected"
2478 " checksum status\n",
2483 /* Both checksum counters are programmed to start at
2484 * the same offset, so unless there is a problem they
2485 * should match. This failure is an early indication that
2486 * hardware receive checksumming won't work.
2488 if (likely(status >> 16 == (status & 0xffff))) {
2489 skb = sky2->rx_ring[sky2->rx_next].skb;
2490 skb->ip_summed = CHECKSUM_COMPLETE;
2491 skb->csum = le16_to_cpu(status);
2493 printk(KERN_NOTICE PFX "%s: hardware receive "
2494 "checksum problem (status = %#x)\n",
2497 sky2_write32(sky2->hw,
2498 Q_ADDR(rxqaddr[port], Q_CSR),
2504 /* TX index reports status for both ports */
2505 BUILD_BUG_ON(TX_RING_SIZE > 0x1000);
2506 sky2_tx_done(hw->dev[0], status & 0xfff);
2508 sky2_tx_done(hw->dev[1],
2509 ((status >> 24) & 0xff)
2510 | (u16)(length & 0xf) << 8);
2514 if (net_ratelimit())
2515 printk(KERN_WARNING PFX
2516 "unknown status opcode 0x%x\n", opcode);
2518 } while (hw->st_idx != idx);
2520 /* Fully processed status ring so clear irq */
2521 sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
2524 sky2_rx_done(hw, 0, total_packets[0], total_bytes[0]);
2525 sky2_rx_done(hw, 1, total_packets[1], total_bytes[1]);
2530 static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status)
2532 struct net_device *dev = hw->dev[port];
2534 if (net_ratelimit())
2535 printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n",
2538 if (status & Y2_IS_PAR_RD1) {
2539 if (net_ratelimit())
2540 printk(KERN_ERR PFX "%s: ram data read parity error\n",
2543 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR);
2546 if (status & Y2_IS_PAR_WR1) {
2547 if (net_ratelimit())
2548 printk(KERN_ERR PFX "%s: ram data write parity error\n",
2551 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR);
2554 if (status & Y2_IS_PAR_MAC1) {
2555 if (net_ratelimit())
2556 printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name);
2557 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE);
2560 if (status & Y2_IS_PAR_RX1) {
2561 if (net_ratelimit())
2562 printk(KERN_ERR PFX "%s: RX parity error\n", dev->name);
2563 sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR);
2566 if (status & Y2_IS_TCP_TXA1) {
2567 if (net_ratelimit())
2568 printk(KERN_ERR PFX "%s: TCP segmentation error\n",
2570 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP);
2574 static void sky2_hw_intr(struct sky2_hw *hw)
2576 struct pci_dev *pdev = hw->pdev;
2577 u32 status = sky2_read32(hw, B0_HWE_ISRC);
2578 u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK);
2582 if (status & Y2_IS_TIST_OV)
2583 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
2585 if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) {
2588 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2589 pci_err = sky2_pci_read16(hw, PCI_STATUS);
2590 if (net_ratelimit())
2591 dev_err(&pdev->dev, "PCI hardware error (0x%x)\n",
2594 sky2_pci_write16(hw, PCI_STATUS,
2595 pci_err | PCI_STATUS_ERROR_BITS);
2596 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2599 if (status & Y2_IS_PCI_EXP) {
2600 /* PCI-Express uncorrectable Error occurred */
2603 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2604 err = sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
2605 sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
2607 if (net_ratelimit())
2608 dev_err(&pdev->dev, "PCI Express error (0x%x)\n", err);
2610 sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
2611 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2614 if (status & Y2_HWE_L1_MASK)
2615 sky2_hw_error(hw, 0, status);
2617 if (status & Y2_HWE_L1_MASK)
2618 sky2_hw_error(hw, 1, status);
2621 static void sky2_mac_intr(struct sky2_hw *hw, unsigned port)
2623 struct net_device *dev = hw->dev[port];
2624 struct sky2_port *sky2 = netdev_priv(dev);
2625 u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
2627 if (netif_msg_intr(sky2))
2628 printk(KERN_INFO PFX "%s: mac interrupt status 0x%x\n",
2631 if (status & GM_IS_RX_CO_OV)
2632 gma_read16(hw, port, GM_RX_IRQ_SRC);
2634 if (status & GM_IS_TX_CO_OV)
2635 gma_read16(hw, port, GM_TX_IRQ_SRC);
2637 if (status & GM_IS_RX_FF_OR) {
2638 ++dev->stats.rx_fifo_errors;
2639 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
2642 if (status & GM_IS_TX_FF_UR) {
2643 ++dev->stats.tx_fifo_errors;
2644 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
2648 /* This should never happen it is a bug. */
2649 static void sky2_le_error(struct sky2_hw *hw, unsigned port,
2650 u16 q, unsigned ring_size)
2652 struct net_device *dev = hw->dev[port];
2653 struct sky2_port *sky2 = netdev_priv(dev);
2655 const u64 *le = (q == Q_R1 || q == Q_R2)
2656 ? (u64 *) sky2->rx_le : (u64 *) sky2->tx_le;
2658 idx = sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_GET_IDX));
2659 printk(KERN_ERR PFX "%s: descriptor error q=%#x get=%u [%llx] put=%u\n",
2660 dev->name, (unsigned) q, idx, (unsigned long long) le[idx],
2661 (unsigned) sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX)));
2663 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_IRQ_CHK);
2666 static int sky2_rx_hung(struct net_device *dev)
2668 struct sky2_port *sky2 = netdev_priv(dev);
2669 struct sky2_hw *hw = sky2->hw;
2670 unsigned port = sky2->port;
2671 unsigned rxq = rxqaddr[port];
2672 u32 mac_rp = sky2_read32(hw, SK_REG(port, RX_GMF_RP));
2673 u8 mac_lev = sky2_read8(hw, SK_REG(port, RX_GMF_RLEV));
2674 u8 fifo_rp = sky2_read8(hw, Q_ADDR(rxq, Q_RP));
2675 u8 fifo_lev = sky2_read8(hw, Q_ADDR(rxq, Q_RL));
2677 /* If idle and MAC or PCI is stuck */
2678 if (sky2->check.last == dev->last_rx &&
2679 ((mac_rp == sky2->check.mac_rp &&
2680 mac_lev != 0 && mac_lev >= sky2->check.mac_lev) ||
2681 /* Check if the PCI RX hang */
2682 (fifo_rp == sky2->check.fifo_rp &&
2683 fifo_lev != 0 && fifo_lev >= sky2->check.fifo_lev))) {
2684 printk(KERN_DEBUG PFX "%s: hung mac %d:%d fifo %d (%d:%d)\n",
2685 dev->name, mac_lev, mac_rp, fifo_lev, fifo_rp,
2686 sky2_read8(hw, Q_ADDR(rxq, Q_WP)));
2689 sky2->check.last = dev->last_rx;
2690 sky2->check.mac_rp = mac_rp;
2691 sky2->check.mac_lev = mac_lev;
2692 sky2->check.fifo_rp = fifo_rp;
2693 sky2->check.fifo_lev = fifo_lev;
2698 static void sky2_watchdog(unsigned long arg)
2700 struct sky2_hw *hw = (struct sky2_hw *) arg;
2702 /* Check for lost IRQ once a second */
2703 if (sky2_read32(hw, B0_ISRC)) {
2704 napi_schedule(&hw->napi);
2708 for (i = 0; i < hw->ports; i++) {
2709 struct net_device *dev = hw->dev[i];
2710 if (!netif_running(dev))
2714 /* For chips with Rx FIFO, check if stuck */
2715 if ((hw->flags & SKY2_HW_RAM_BUFFER) &&
2716 sky2_rx_hung(dev)) {
2717 pr_info(PFX "%s: receiver hang detected\n",
2719 schedule_work(&hw->restart_work);
2728 mod_timer(&hw->watchdog_timer, round_jiffies(jiffies + HZ));
2731 /* Hardware/software error handling */
2732 static void sky2_err_intr(struct sky2_hw *hw, u32 status)
2734 if (net_ratelimit())
2735 dev_warn(&hw->pdev->dev, "error interrupt status=%#x\n", status);
2737 if (status & Y2_IS_HW_ERR)
2740 if (status & Y2_IS_IRQ_MAC1)
2741 sky2_mac_intr(hw, 0);
2743 if (status & Y2_IS_IRQ_MAC2)
2744 sky2_mac_intr(hw, 1);
2746 if (status & Y2_IS_CHK_RX1)
2747 sky2_le_error(hw, 0, Q_R1, RX_LE_SIZE);
2749 if (status & Y2_IS_CHK_RX2)
2750 sky2_le_error(hw, 1, Q_R2, RX_LE_SIZE);
2752 if (status & Y2_IS_CHK_TXA1)
2753 sky2_le_error(hw, 0, Q_XA1, TX_RING_SIZE);
2755 if (status & Y2_IS_CHK_TXA2)
2756 sky2_le_error(hw, 1, Q_XA2, TX_RING_SIZE);
2759 static int sky2_poll(struct napi_struct *napi, int work_limit)
2761 struct sky2_hw *hw = container_of(napi, struct sky2_hw, napi);
2762 u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
2766 if (unlikely(status & Y2_IS_ERROR))
2767 sky2_err_intr(hw, status);
2769 if (status & Y2_IS_IRQ_PHY1)
2770 sky2_phy_intr(hw, 0);
2772 if (status & Y2_IS_IRQ_PHY2)
2773 sky2_phy_intr(hw, 1);
2775 while ((idx = sky2_read16(hw, STAT_PUT_IDX)) != hw->st_idx) {
2776 work_done += sky2_status_intr(hw, work_limit - work_done, idx);
2778 if (work_done >= work_limit)
2782 napi_complete(napi);
2783 sky2_read32(hw, B0_Y2_SP_LISR);
2789 static irqreturn_t sky2_intr(int irq, void *dev_id)
2791 struct sky2_hw *hw = dev_id;
2794 /* Reading this mask interrupts as side effect */
2795 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
2796 if (status == 0 || status == ~0)
2799 prefetch(&hw->st_le[hw->st_idx]);
2801 napi_schedule(&hw->napi);
2806 #ifdef CONFIG_NET_POLL_CONTROLLER
2807 static void sky2_netpoll(struct net_device *dev)
2809 struct sky2_port *sky2 = netdev_priv(dev);
2811 napi_schedule(&sky2->hw->napi);
2815 /* Chip internal frequency for clock calculations */
2816 static u32 sky2_mhz(const struct sky2_hw *hw)
2818 switch (hw->chip_id) {
2819 case CHIP_ID_YUKON_EC:
2820 case CHIP_ID_YUKON_EC_U:
2821 case CHIP_ID_YUKON_EX:
2822 case CHIP_ID_YUKON_SUPR:
2823 case CHIP_ID_YUKON_UL_2:
2826 case CHIP_ID_YUKON_FE:
2829 case CHIP_ID_YUKON_FE_P:
2832 case CHIP_ID_YUKON_XL:
2840 static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us)
2842 return sky2_mhz(hw) * us;
2845 static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk)
2847 return clk / sky2_mhz(hw);
2851 static int __devinit sky2_init(struct sky2_hw *hw)
2855 /* Enable all clocks and check for bad PCI access */
2856 sky2_pci_write32(hw, PCI_DEV_REG3, 0);
2858 sky2_write8(hw, B0_CTST, CS_RST_CLR);
2860 hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
2861 hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
2863 switch(hw->chip_id) {
2864 case CHIP_ID_YUKON_XL:
2865 hw->flags = SKY2_HW_GIGABIT | SKY2_HW_NEWER_PHY;
2868 case CHIP_ID_YUKON_EC_U:
2869 hw->flags = SKY2_HW_GIGABIT
2871 | SKY2_HW_ADV_POWER_CTL;
2874 case CHIP_ID_YUKON_EX:
2875 hw->flags = SKY2_HW_GIGABIT
2878 | SKY2_HW_ADV_POWER_CTL;
2880 /* New transmit checksum */
2881 if (hw->chip_rev != CHIP_REV_YU_EX_B0)
2882 hw->flags |= SKY2_HW_AUTO_TX_SUM;
2885 case CHIP_ID_YUKON_EC:
2886 /* This rev is really old, and requires untested workarounds */
2887 if (hw->chip_rev == CHIP_REV_YU_EC_A1) {
2888 dev_err(&hw->pdev->dev, "unsupported revision Yukon-EC rev A1\n");
2891 hw->flags = SKY2_HW_GIGABIT;
2894 case CHIP_ID_YUKON_FE:
2897 case CHIP_ID_YUKON_FE_P:
2898 hw->flags = SKY2_HW_NEWER_PHY
2900 | SKY2_HW_AUTO_TX_SUM
2901 | SKY2_HW_ADV_POWER_CTL;
2904 case CHIP_ID_YUKON_SUPR:
2905 hw->flags = SKY2_HW_GIGABIT
2908 | SKY2_HW_AUTO_TX_SUM
2909 | SKY2_HW_ADV_POWER_CTL;
2912 case CHIP_ID_YUKON_UL_2:
2913 hw->flags = SKY2_HW_GIGABIT
2914 | SKY2_HW_ADV_POWER_CTL;
2918 dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
2923 hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
2924 if (hw->pmd_type == 'L' || hw->pmd_type == 'S' || hw->pmd_type == 'P')
2925 hw->flags |= SKY2_HW_FIBRE_PHY;
2928 t8 = sky2_read8(hw, B2_Y2_HW_RES);
2929 if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
2930 if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC))
2937 static void sky2_reset(struct sky2_hw *hw)
2939 struct pci_dev *pdev = hw->pdev;
2942 u32 hwe_mask = Y2_HWE_ALL_MASK;
2945 if (hw->chip_id == CHIP_ID_YUKON_EX) {
2946 status = sky2_read16(hw, HCU_CCSR);
2947 status &= ~(HCU_CCSR_AHB_RST | HCU_CCSR_CPU_RST_MODE |
2948 HCU_CCSR_UC_STATE_MSK);
2949 sky2_write16(hw, HCU_CCSR, status);
2951 sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
2952 sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE);
2955 sky2_write8(hw, B0_CTST, CS_RST_SET);
2956 sky2_write8(hw, B0_CTST, CS_RST_CLR);
2958 /* allow writes to PCI config */
2959 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2961 /* clear PCI errors, if any */
2962 status = sky2_pci_read16(hw, PCI_STATUS);
2963 status |= PCI_STATUS_ERROR_BITS;
2964 sky2_pci_write16(hw, PCI_STATUS, status);
2966 sky2_write8(hw, B0_CTST, CS_MRST_CLR);
2968 cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
2970 sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
2973 /* If error bit is stuck on ignore it */
2974 if (sky2_read32(hw, B0_HWE_ISRC) & Y2_IS_PCI_EXP)
2975 dev_info(&pdev->dev, "ignoring stuck error report bit\n");
2977 hwe_mask |= Y2_IS_PCI_EXP;
2981 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2983 for (i = 0; i < hw->ports; i++) {
2984 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
2985 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
2987 if (hw->chip_id == CHIP_ID_YUKON_EX ||
2988 hw->chip_id == CHIP_ID_YUKON_SUPR)
2989 sky2_write16(hw, SK_REG(i, GMAC_CTRL),
2990 GMC_BYP_MACSECRX_ON | GMC_BYP_MACSECTX_ON
2994 /* Clear I2C IRQ noise */
2995 sky2_write32(hw, B2_I2C_IRQ, 1);
2997 /* turn off hardware timer (unused) */
2998 sky2_write8(hw, B2_TI_CTRL, TIM_STOP);
2999 sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
3001 sky2_write8(hw, B0_Y2LED, LED_STAT_ON);
3003 /* Turn off descriptor polling */
3004 sky2_write32(hw, B28_DPT_CTRL, DPT_STOP);
3006 /* Turn off receive timestamp */
3007 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP);
3008 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
3010 /* enable the Tx Arbiters */
3011 for (i = 0; i < hw->ports; i++)
3012 sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
3014 /* Initialize ram interface */
3015 for (i = 0; i < hw->ports; i++) {
3016 sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR);
3018 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53);
3019 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53);
3020 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53);
3021 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53);
3022 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53);
3023 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53);
3024 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53);
3025 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53);
3026 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53);
3027 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53);
3028 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53);
3029 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53);
3032 sky2_write32(hw, B0_HWE_IMSK, hwe_mask);
3034 for (i = 0; i < hw->ports; i++)
3035 sky2_gmac_reset(hw, i);
3037 memset(hw->st_le, 0, STATUS_LE_BYTES);
3040 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET);
3041 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR);
3043 sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma);
3044 sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32);
3046 /* Set the list last index */
3047 sky2_write16(hw, STAT_LAST_IDX, STATUS_RING_SIZE - 1);
3049 sky2_write16(hw, STAT_TX_IDX_TH, 10);
3050 sky2_write8(hw, STAT_FIFO_WM, 16);
3052 /* set Status-FIFO ISR watermark */
3053 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0)
3054 sky2_write8(hw, STAT_FIFO_ISR_WM, 4);
3056 sky2_write8(hw, STAT_FIFO_ISR_WM, 16);
3058 sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 1000));
3059 sky2_write32(hw, STAT_ISR_TIMER_INI, sky2_us2clk(hw, 20));
3060 sky2_write32(hw, STAT_LEV_TIMER_INI, sky2_us2clk(hw, 100));
3062 /* enable status unit */
3063 sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON);
3065 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
3066 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
3067 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
3070 static void sky2_restart(struct work_struct *work)
3072 struct sky2_hw *hw = container_of(work, struct sky2_hw, restart_work);
3073 struct net_device *dev;
3077 for (i = 0; i < hw->ports; i++) {
3079 if (netif_running(dev))
3083 napi_disable(&hw->napi);
3084 sky2_write32(hw, B0_IMSK, 0);
3086 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
3087 napi_enable(&hw->napi);
3089 for (i = 0; i < hw->ports; i++) {
3091 if (netif_running(dev)) {
3094 printk(KERN_INFO PFX "%s: could not restart %d\n",
3104 static inline u8 sky2_wol_supported(const struct sky2_hw *hw)
3106 return sky2_is_copper(hw) ? (WAKE_PHY | WAKE_MAGIC) : 0;
3109 static void sky2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3111 const struct sky2_port *sky2 = netdev_priv(dev);
3113 wol->supported = sky2_wol_supported(sky2->hw);
3114 wol->wolopts = sky2->wol;
3117 static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3119 struct sky2_port *sky2 = netdev_priv(dev);
3120 struct sky2_hw *hw = sky2->hw;
3122 if ((wol->wolopts & ~sky2_wol_supported(sky2->hw))
3123 || !device_can_wakeup(&hw->pdev->dev))
3126 sky2->wol = wol->wolopts;
3128 if (hw->chip_id == CHIP_ID_YUKON_EC_U ||
3129 hw->chip_id == CHIP_ID_YUKON_EX ||
3130 hw->chip_id == CHIP_ID_YUKON_FE_P)
3131 sky2_write32(hw, B0_CTST, sky2->wol
3132 ? Y2_HW_WOL_ON : Y2_HW_WOL_OFF);
3134 device_set_wakeup_enable(&hw->pdev->dev, sky2->wol);
3136 if (!netif_running(dev))
3137 sky2_wol_init(sky2);
3141 static u32 sky2_supported_modes(const struct sky2_hw *hw)
3143 if (sky2_is_copper(hw)) {
3144 u32 modes = SUPPORTED_10baseT_Half
3145 | SUPPORTED_10baseT_Full
3146 | SUPPORTED_100baseT_Half
3147 | SUPPORTED_100baseT_Full
3148 | SUPPORTED_Autoneg | SUPPORTED_TP;
3150 if (hw->flags & SKY2_HW_GIGABIT)
3151 modes |= SUPPORTED_1000baseT_Half
3152 | SUPPORTED_1000baseT_Full;
3155 return SUPPORTED_1000baseT_Half
3156 | SUPPORTED_1000baseT_Full
3161 static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
3163 struct sky2_port *sky2 = netdev_priv(dev);
3164 struct sky2_hw *hw = sky2->hw;
3166 ecmd->transceiver = XCVR_INTERNAL;
3167 ecmd->supported = sky2_supported_modes(hw);
3168 ecmd->phy_address = PHY_ADDR_MARV;
3169 if (sky2_is_copper(hw)) {
3170 ecmd->port = PORT_TP;
3171 ecmd->speed = sky2->speed;
3173 ecmd->speed = SPEED_1000;
3174 ecmd->port = PORT_FIBRE;
3177 ecmd->advertising = sky2->advertising;
3178 ecmd->autoneg = sky2->autoneg;
3179 ecmd->duplex = sky2->duplex;
3183 static int sky2_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
3185 struct sky2_port *sky2 = netdev_priv(dev);
3186 const struct sky2_hw *hw = sky2->hw;
3187 u32 supported = sky2_supported_modes(hw);
3189 if (ecmd->autoneg == AUTONEG_ENABLE) {
3190 ecmd->advertising = supported;
3196 switch (ecmd->speed) {
3198 if (ecmd->duplex == DUPLEX_FULL)
3199 setting = SUPPORTED_1000baseT_Full;
3200 else if (ecmd->duplex == DUPLEX_HALF)
3201 setting = SUPPORTED_1000baseT_Half;
3206 if (ecmd->duplex == DUPLEX_FULL)
3207 setting = SUPPORTED_100baseT_Full;
3208 else if (ecmd->duplex == DUPLEX_HALF)
3209 setting = SUPPORTED_100baseT_Half;
3215 if (ecmd->duplex == DUPLEX_FULL)
3216 setting = SUPPORTED_10baseT_Full;
3217 else if (ecmd->duplex == DUPLEX_HALF)
3218 setting = SUPPORTED_10baseT_Half;
3226 if ((setting & supported) == 0)
3229 sky2->speed = ecmd->speed;
3230 sky2->duplex = ecmd->duplex;
3233 sky2->autoneg = ecmd->autoneg;
3234 sky2->advertising = ecmd->advertising;
3236 if (netif_running(dev)) {
3237 sky2_phy_reinit(sky2);
3238 sky2_set_multicast(dev);
3244 static void sky2_get_drvinfo(struct net_device *dev,
3245 struct ethtool_drvinfo *info)
3247 struct sky2_port *sky2 = netdev_priv(dev);
3249 strcpy(info->driver, DRV_NAME);
3250 strcpy(info->version, DRV_VERSION);
3251 strcpy(info->fw_version, "N/A");
3252 strcpy(info->bus_info, pci_name(sky2->hw->pdev));
3255 static const struct sky2_stat {
3256 char name[ETH_GSTRING_LEN];
3259 { "tx_bytes", GM_TXO_OK_HI },
3260 { "rx_bytes", GM_RXO_OK_HI },
3261 { "tx_broadcast", GM_TXF_BC_OK },
3262 { "rx_broadcast", GM_RXF_BC_OK },
3263 { "tx_multicast", GM_TXF_MC_OK },
3264 { "rx_multicast", GM_RXF_MC_OK },
3265 { "tx_unicast", GM_TXF_UC_OK },
3266 { "rx_unicast", GM_RXF_UC_OK },
3267 { "tx_mac_pause", GM_TXF_MPAUSE },
3268 { "rx_mac_pause", GM_RXF_MPAUSE },
3269 { "collisions", GM_TXF_COL },
3270 { "late_collision",GM_TXF_LAT_COL },
3271 { "aborted", GM_TXF_ABO_COL },
3272 { "single_collisions", GM_TXF_SNG_COL },
3273 { "multi_collisions", GM_TXF_MUL_COL },
3275 { "rx_short", GM_RXF_SHT },
3276 { "rx_runt", GM_RXE_FRAG },
3277 { "rx_64_byte_packets", GM_RXF_64B },
3278 { "rx_65_to_127_byte_packets", GM_RXF_127B },
3279 { "rx_128_to_255_byte_packets", GM_RXF_255B },
3280 { "rx_256_to_511_byte_packets", GM_RXF_511B },
3281 { "rx_512_to_1023_byte_packets", GM_RXF_1023B },
3282 { "rx_1024_to_1518_byte_packets", GM_RXF_1518B },
3283 { "rx_1518_to_max_byte_packets", GM_RXF_MAX_SZ },
3284 { "rx_too_long", GM_RXF_LNG_ERR },
3285 { "rx_fifo_overflow", GM_RXE_FIFO_OV },
3286 { "rx_jabber", GM_RXF_JAB_PKT },
3287 { "rx_fcs_error", GM_RXF_FCS_ERR },
3289 { "tx_64_byte_packets", GM_TXF_64B },
3290 { "tx_65_to_127_byte_packets", GM_TXF_127B },
3291 { "tx_128_to_255_byte_packets", GM_TXF_255B },
3292 { "tx_256_to_511_byte_packets", GM_TXF_511B },
3293 { "tx_512_to_1023_byte_packets", GM_TXF_1023B },
3294 { "tx_1024_to_1518_byte_packets", GM_TXF_1518B },
3295 { "tx_1519_to_max_byte_packets", GM_TXF_MAX_SZ },
3296 { "tx_fifo_underrun", GM_TXE_FIFO_UR },
3299 static u32 sky2_get_rx_csum(struct net_device *dev)
3301 struct sky2_port *sky2 = netdev_priv(dev);
3303 return sky2->rx_csum;
3306 static int sky2_set_rx_csum(struct net_device *dev, u32 data)
3308 struct sky2_port *sky2 = netdev_priv(dev);
3310 sky2->rx_csum = data;
3312 sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR),
3313 data ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
3318 static u32 sky2_get_msglevel(struct net_device *netdev)
3320 struct sky2_port *sky2 = netdev_priv(netdev);
3321 return sky2->msg_enable;
3324 static int sky2_nway_reset(struct net_device *dev)
3326 struct sky2_port *sky2 = netdev_priv(dev);
3328 if (!netif_running(dev) || sky2->autoneg != AUTONEG_ENABLE)
3331 sky2_phy_reinit(sky2);
3332 sky2_set_multicast(dev);
3337 static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count)
3339 struct sky2_hw *hw = sky2->hw;
3340 unsigned port = sky2->port;
3343 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
3344 | (u64) gma_read32(hw, port, GM_TXO_OK_LO);
3345 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
3346 | (u64) gma_read32(hw, port, GM_RXO_OK_LO);
3348 for (i = 2; i < count; i++)
3349 data[i] = (u64) gma_read32(hw, port, sky2_stats[i].offset);
3352 static void sky2_set_msglevel(struct net_device *netdev, u32 value)
3354 struct sky2_port *sky2 = netdev_priv(netdev);
3355 sky2->msg_enable = value;
3358 static int sky2_get_sset_count(struct net_device *dev, int sset)
3362 return ARRAY_SIZE(sky2_stats);
3368 static void sky2_get_ethtool_stats(struct net_device *dev,
3369 struct ethtool_stats *stats, u64 * data)
3371 struct sky2_port *sky2 = netdev_priv(dev);
3373 sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats));
3376 static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data)
3380 switch (stringset) {
3382 for (i = 0; i < ARRAY_SIZE(sky2_stats); i++)
3383 memcpy(data + i * ETH_GSTRING_LEN,
3384 sky2_stats[i].name, ETH_GSTRING_LEN);
3389 static int sky2_set_mac_address(struct net_device *dev, void *p)
3391 struct sky2_port *sky2 = netdev_priv(dev);
3392 struct sky2_hw *hw = sky2->hw;
3393 unsigned port = sky2->port;
3394 const struct sockaddr *addr = p;
3396 if (!is_valid_ether_addr(addr->sa_data))
3397 return -EADDRNOTAVAIL;
3399 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
3400 memcpy_toio(hw->regs + B2_MAC_1 + port * 8,
3401 dev->dev_addr, ETH_ALEN);
3402 memcpy_toio(hw->regs + B2_MAC_2 + port * 8,
3403 dev->dev_addr, ETH_ALEN);
3405 /* virtual address for data */
3406 gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
3408 /* physical address: used for pause frames */
3409 gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
3414 static void inline sky2_add_filter(u8 filter[8], const u8 *addr)
3418 bit = ether_crc(ETH_ALEN, addr) & 63;
3419 filter[bit >> 3] |= 1 << (bit & 7);
3422 static void sky2_set_multicast(struct net_device *dev)
3424 struct sky2_port *sky2 = netdev_priv(dev);
3425 struct sky2_hw *hw = sky2->hw;
3426 unsigned port = sky2->port;
3427 struct dev_mc_list *list = dev->mc_list;
3431 static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 };
3433 rx_pause = (sky2->flow_status == FC_RX || sky2->flow_status == FC_BOTH);
3434 memset(filter, 0, sizeof(filter));
3436 reg = gma_read16(hw, port, GM_RX_CTRL);
3437 reg |= GM_RXCR_UCF_ENA;
3439 if (dev->flags & IFF_PROMISC) /* promiscuous */
3440 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
3441 else if (dev->flags & IFF_ALLMULTI)
3442 memset(filter, 0xff, sizeof(filter));
3443 else if (dev->mc_count == 0 && !rx_pause)
3444 reg &= ~GM_RXCR_MCF_ENA;
3447 reg |= GM_RXCR_MCF_ENA;
3450 sky2_add_filter(filter, pause_mc_addr);
3452 for (i = 0; list && i < dev->mc_count; i++, list = list->next)
3453 sky2_add_filter(filter, list->dmi_addr);
3456 gma_write16(hw, port, GM_MC_ADDR_H1,
3457 (u16) filter[0] | ((u16) filter[1] << 8));
3458 gma_write16(hw, port, GM_MC_ADDR_H2,
3459 (u16) filter[2] | ((u16) filter[3] << 8));
3460 gma_write16(hw, port, GM_MC_ADDR_H3,
3461 (u16) filter[4] | ((u16) filter[5] << 8));
3462 gma_write16(hw, port, GM_MC_ADDR_H4,
3463 (u16) filter[6] | ((u16) filter[7] << 8));
3465 gma_write16(hw, port, GM_RX_CTRL, reg);
3468 /* Can have one global because blinking is controlled by
3469 * ethtool and that is always under RTNL mutex
3471 static void sky2_led(struct sky2_port *sky2, enum led_mode mode)
3473 struct sky2_hw *hw = sky2->hw;
3474 unsigned port = sky2->port;
3476 spin_lock_bh(&sky2->phy_lock);
3477 if (hw->chip_id == CHIP_ID_YUKON_EC_U ||
3478 hw->chip_id == CHIP_ID_YUKON_EX ||
3479 hw->chip_id == CHIP_ID_YUKON_SUPR) {
3481 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
3482 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
3486 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
3487 PHY_M_LEDC_LOS_CTRL(8) |
3488 PHY_M_LEDC_INIT_CTRL(8) |
3489 PHY_M_LEDC_STA1_CTRL(8) |
3490 PHY_M_LEDC_STA0_CTRL(8));
3493 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
3494 PHY_M_LEDC_LOS_CTRL(9) |
3495 PHY_M_LEDC_INIT_CTRL(9) |
3496 PHY_M_LEDC_STA1_CTRL(9) |
3497 PHY_M_LEDC_STA0_CTRL(9));
3500 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
3501 PHY_M_LEDC_LOS_CTRL(0xa) |
3502 PHY_M_LEDC_INIT_CTRL(0xa) |
3503 PHY_M_LEDC_STA1_CTRL(0xa) |
3504 PHY_M_LEDC_STA0_CTRL(0xa));
3507 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
3508 PHY_M_LEDC_LOS_CTRL(1) |
3509 PHY_M_LEDC_INIT_CTRL(8) |
3510 PHY_M_LEDC_STA1_CTRL(7) |
3511 PHY_M_LEDC_STA0_CTRL(7));
3514 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
3516 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
3517 PHY_M_LED_MO_DUP(mode) |
3518 PHY_M_LED_MO_10(mode) |
3519 PHY_M_LED_MO_100(mode) |
3520 PHY_M_LED_MO_1000(mode) |
3521 PHY_M_LED_MO_RX(mode) |
3522 PHY_M_LED_MO_TX(mode));
3524 spin_unlock_bh(&sky2->phy_lock);
3527 /* blink LED's for finding board */
3528 static int sky2_phys_id(struct net_device *dev, u32 data)
3530 struct sky2_port *sky2 = netdev_priv(dev);
3536 for (i = 0; i < data; i++) {
3537 sky2_led(sky2, MO_LED_ON);
3538 if (msleep_interruptible(500))
3540 sky2_led(sky2, MO_LED_OFF);
3541 if (msleep_interruptible(500))
3544 sky2_led(sky2, MO_LED_NORM);
3549 static void sky2_get_pauseparam(struct net_device *dev,
3550 struct ethtool_pauseparam *ecmd)
3552 struct sky2_port *sky2 = netdev_priv(dev);
3554 switch (sky2->flow_mode) {
3556 ecmd->tx_pause = ecmd->rx_pause = 0;
3559 ecmd->tx_pause = 1, ecmd->rx_pause = 0;
3562 ecmd->tx_pause = 0, ecmd->rx_pause = 1;
3565 ecmd->tx_pause = ecmd->rx_pause = 1;
3568 ecmd->autoneg = sky2->autoneg;
3571 static int sky2_set_pauseparam(struct net_device *dev,
3572 struct ethtool_pauseparam *ecmd)
3574 struct sky2_port *sky2 = netdev_priv(dev);
3576 sky2->autoneg = ecmd->autoneg;
3577 sky2->flow_mode = sky2_flow(ecmd->rx_pause, ecmd->tx_pause);
3579 if (netif_running(dev))
3580 sky2_phy_reinit(sky2);
3585 static int sky2_get_coalesce(struct net_device *dev,
3586 struct ethtool_coalesce *ecmd)
3588 struct sky2_port *sky2 = netdev_priv(dev);
3589 struct sky2_hw *hw = sky2->hw;
3591 if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_STOP)
3592 ecmd->tx_coalesce_usecs = 0;
3594 u32 clks = sky2_read32(hw, STAT_TX_TIMER_INI);
3595 ecmd->tx_coalesce_usecs = sky2_clk2us(hw, clks);
3597 ecmd->tx_max_coalesced_frames = sky2_read16(hw, STAT_TX_IDX_TH);
3599 if (sky2_read8(hw, STAT_LEV_TIMER_CTRL) == TIM_STOP)
3600 ecmd->rx_coalesce_usecs = 0;
3602 u32 clks = sky2_read32(hw, STAT_LEV_TIMER_INI);
3603 ecmd->rx_coalesce_usecs = sky2_clk2us(hw, clks);
3605 ecmd->rx_max_coalesced_frames = sky2_read8(hw, STAT_FIFO_WM);
3607 if (sky2_read8(hw, STAT_ISR_TIMER_CTRL) == TIM_STOP)
3608 ecmd->rx_coalesce_usecs_irq = 0;
3610 u32 clks = sky2_read32(hw, STAT_ISR_TIMER_INI);
3611 ecmd->rx_coalesce_usecs_irq = sky2_clk2us(hw, clks);
3614 ecmd->rx_max_coalesced_frames_irq = sky2_read8(hw, STAT_FIFO_ISR_WM);
3619 /* Note: this affect both ports */
3620 static int sky2_set_coalesce(struct net_device *dev,
3621 struct ethtool_coalesce *ecmd)
3623 struct sky2_port *sky2 = netdev_priv(dev);
3624 struct sky2_hw *hw = sky2->hw;
3625 const u32 tmax = sky2_clk2us(hw, 0x0ffffff);
3627 if (ecmd->tx_coalesce_usecs > tmax ||
3628 ecmd->rx_coalesce_usecs > tmax ||
3629 ecmd->rx_coalesce_usecs_irq > tmax)
3632 if (ecmd->tx_max_coalesced_frames >= TX_RING_SIZE-1)
3634 if (ecmd->rx_max_coalesced_frames > RX_MAX_PENDING)
3636 if (ecmd->rx_max_coalesced_frames_irq >RX_MAX_PENDING)
3639 if (ecmd->tx_coalesce_usecs == 0)
3640 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
3642 sky2_write32(hw, STAT_TX_TIMER_INI,
3643 sky2_us2clk(hw, ecmd->tx_coalesce_usecs));
3644 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
3646 sky2_write16(hw, STAT_TX_IDX_TH, ecmd->tx_max_coalesced_frames);
3648 if (ecmd->rx_coalesce_usecs == 0)
3649 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_STOP);
3651 sky2_write32(hw, STAT_LEV_TIMER_INI,
3652 sky2_us2clk(hw, ecmd->rx_coalesce_usecs));
3653 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
3655 sky2_write8(hw, STAT_FIFO_WM, ecmd->rx_max_coalesced_frames);
3657 if (ecmd->rx_coalesce_usecs_irq == 0)
3658 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_STOP);
3660 sky2_write32(hw, STAT_ISR_TIMER_INI,
3661 sky2_us2clk(hw, ecmd->rx_coalesce_usecs_irq));
3662 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
3664 sky2_write8(hw, STAT_FIFO_ISR_WM, ecmd->rx_max_coalesced_frames_irq);
3668 static void sky2_get_ringparam(struct net_device *dev,
3669 struct ethtool_ringparam *ering)
3671 struct sky2_port *sky2 = netdev_priv(dev);
3673 ering->rx_max_pending = RX_MAX_PENDING;
3674 ering->rx_mini_max_pending = 0;
3675 ering->rx_jumbo_max_pending = 0;
3676 ering->tx_max_pending = TX_RING_SIZE - 1;
3678 ering->rx_pending = sky2->rx_pending;
3679 ering->rx_mini_pending = 0;
3680 ering->rx_jumbo_pending = 0;
3681 ering->tx_pending = sky2->tx_pending;
3684 static int sky2_set_ringparam(struct net_device *dev,
3685 struct ethtool_ringparam *ering)
3687 struct sky2_port *sky2 = netdev_priv(dev);
3690 if (ering->rx_pending > RX_MAX_PENDING ||
3691 ering->rx_pending < 8 ||
3692 ering->tx_pending < MAX_SKB_TX_LE ||
3693 ering->tx_pending > TX_RING_SIZE - 1)
3696 if (netif_running(dev))
3699 sky2->rx_pending = ering->rx_pending;
3700 sky2->tx_pending = ering->tx_pending;
3702 if (netif_running(dev)) {
3711 static int sky2_get_regs_len(struct net_device *dev)
3717 * Returns copy of control register region
3718 * Note: ethtool_get_regs always provides full size (16k) buffer
3720 static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs,
3723 const struct sky2_port *sky2 = netdev_priv(dev);
3724 const void __iomem *io = sky2->hw->regs;
3729 for (b = 0; b < 128; b++) {
3730 /* This complicated switch statement is to make sure and
3731 * only access regions that are unreserved.
3732 * Some blocks are only valid on dual port cards.
3733 * and block 3 has some special diagnostic registers that
3738 /* skip diagnostic ram region */
3739 memcpy_fromio(p + 0x10, io + 0x10, 128 - 0x10);
3742 /* dual port cards only */
3743 case 5: /* Tx Arbiter 2 */
3745 case 14 ... 15: /* TX2 */
3746 case 17: case 19: /* Ram Buffer 2 */
3747 case 22 ... 23: /* Tx Ram Buffer 2 */
3748 case 25: /* Rx MAC Fifo 1 */
3749 case 27: /* Tx MAC Fifo 2 */
3750 case 31: /* GPHY 2 */
3751 case 40 ... 47: /* Pattern Ram 2 */
3752 case 52: case 54: /* TCP Segmentation 2 */
3753 case 112 ... 116: /* GMAC 2 */
3754 if (sky2->hw->ports == 1)
3757 case 0: /* Control */
3758 case 2: /* Mac address */
3759 case 4: /* Tx Arbiter 1 */
3760 case 7: /* PCI express reg */
3762 case 12 ... 13: /* TX1 */
3763 case 16: case 18:/* Rx Ram Buffer 1 */
3764 case 20 ... 21: /* Tx Ram Buffer 1 */
3765 case 24: /* Rx MAC Fifo 1 */
3766 case 26: /* Tx MAC Fifo 1 */
3767 case 28 ... 29: /* Descriptor and status unit */
3768 case 30: /* GPHY 1*/
3769 case 32 ... 39: /* Pattern Ram 1 */
3770 case 48: case 50: /* TCP Segmentation 1 */
3771 case 56 ... 60: /* PCI space */
3772 case 80 ... 84: /* GMAC 1 */
3773 memcpy_fromio(p, io, 128);
3785 /* In order to do Jumbo packets on these chips, need to turn off the
3786 * transmit store/forward. Therefore checksum offload won't work.
3788 static int no_tx_offload(struct net_device *dev)
3790 const struct sky2_port *sky2 = netdev_priv(dev);
3791 const struct sky2_hw *hw = sky2->hw;
3793 return dev->mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_EC_U;
3796 static int sky2_set_tx_csum(struct net_device *dev, u32 data)
3798 if (data && no_tx_offload(dev))
3801 return ethtool_op_set_tx_csum(dev, data);
3805 static int sky2_set_tso(struct net_device *dev, u32 data)
3807 if (data && no_tx_offload(dev))
3810 return ethtool_op_set_tso(dev, data);
3813 static int sky2_get_eeprom_len(struct net_device *dev)
3815 struct sky2_port *sky2 = netdev_priv(dev);
3816 struct sky2_hw *hw = sky2->hw;
3819 reg2 = sky2_pci_read16(hw, PCI_DEV_REG2);
3820 return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
3823 static int sky2_vpd_wait(const struct sky2_hw *hw, int cap, u16 busy)
3825 unsigned long start = jiffies;
3827 while ( (sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F) == busy) {
3828 /* Can take up to 10.6 ms for write */
3829 if (time_after(jiffies, start + HZ/4)) {
3830 dev_err(&hw->pdev->dev, PFX "VPD cycle timed out");
3839 static int sky2_vpd_read(struct sky2_hw *hw, int cap, void *data,
3840 u16 offset, size_t length)
3844 while (length > 0) {
3847 sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset);
3848 rc = sky2_vpd_wait(hw, cap, 0);
3852 val = sky2_pci_read32(hw, cap + PCI_VPD_DATA);
3854 memcpy(data, &val, min(sizeof(val), length));
3855 offset += sizeof(u32);
3856 data += sizeof(u32);
3857 length -= sizeof(u32);
3863 static int sky2_vpd_write(struct sky2_hw *hw, int cap, const void *data,
3864 u16 offset, unsigned int length)
3869 for (i = 0; i < length; i += sizeof(u32)) {
3870 u32 val = *(u32 *)(data + i);
3872 sky2_pci_write32(hw, cap + PCI_VPD_DATA, val);
3873 sky2_pci_write32(hw, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F);
3875 rc = sky2_vpd_wait(hw, cap, PCI_VPD_ADDR_F);
3882 static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
3885 struct sky2_port *sky2 = netdev_priv(dev);
3886 int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
3891 eeprom->magic = SKY2_EEPROM_MAGIC;
3893 return sky2_vpd_read(sky2->hw, cap, data, eeprom->offset, eeprom->len);
3896 static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
3899 struct sky2_port *sky2 = netdev_priv(dev);
3900 int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
3905 if (eeprom->magic != SKY2_EEPROM_MAGIC)
3908 /* Partial writes not supported */
3909 if ((eeprom->offset & 3) || (eeprom->len & 3))
3912 return sky2_vpd_write(sky2->hw, cap, data, eeprom->offset, eeprom->len);
3916 static const struct ethtool_ops sky2_ethtool_ops = {
3917 .get_settings = sky2_get_settings,
3918 .set_settings = sky2_set_settings,
3919 .get_drvinfo = sky2_get_drvinfo,
3920 .get_wol = sky2_get_wol,
3921 .set_wol = sky2_set_wol,
3922 .get_msglevel = sky2_get_msglevel,
3923 .set_msglevel = sky2_set_msglevel,
3924 .nway_reset = sky2_nway_reset,
3925 .get_regs_len = sky2_get_regs_len,
3926 .get_regs = sky2_get_regs,
3927 .get_link = ethtool_op_get_link,
3928 .get_eeprom_len = sky2_get_eeprom_len,
3929 .get_eeprom = sky2_get_eeprom,
3930 .set_eeprom = sky2_set_eeprom,
3931 .set_sg = ethtool_op_set_sg,
3932 .set_tx_csum = sky2_set_tx_csum,
3933 .set_tso = sky2_set_tso,
3934 .get_rx_csum = sky2_get_rx_csum,
3935 .set_rx_csum = sky2_set_rx_csum,
3936 .get_strings = sky2_get_strings,
3937 .get_coalesce = sky2_get_coalesce,
3938 .set_coalesce = sky2_set_coalesce,
3939 .get_ringparam = sky2_get_ringparam,
3940 .set_ringparam = sky2_set_ringparam,
3941 .get_pauseparam = sky2_get_pauseparam,
3942 .set_pauseparam = sky2_set_pauseparam,
3943 .phys_id = sky2_phys_id,
3944 .get_sset_count = sky2_get_sset_count,
3945 .get_ethtool_stats = sky2_get_ethtool_stats,
3948 #ifdef CONFIG_SKY2_DEBUG
3950 static struct dentry *sky2_debug;
3954 * Read and parse the first part of Vital Product Data
3956 #define VPD_SIZE 128
3957 #define VPD_MAGIC 0x82
3959 static const struct vpd_tag {
3963 { "PN", "Part Number" },
3964 { "EC", "Engineering Level" },
3965 { "MN", "Manufacturer" },
3966 { "SN", "Serial Number" },
3967 { "YA", "Asset Tag" },
3968 { "VL", "First Error Log Message" },
3969 { "VF", "Second Error Log Message" },
3970 { "VB", "Boot Agent ROM Configuration" },
3971 { "VE", "EFI UNDI Configuration" },
3974 static void sky2_show_vpd(struct seq_file *seq, struct sky2_hw *hw)
3982 reg2 = sky2_pci_read16(hw, PCI_DEV_REG2);
3983 vpd_size = 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
3985 seq_printf(seq, "%s Product Data\n", pci_name(hw->pdev));
3986 buf = kmalloc(vpd_size, GFP_KERNEL);
3988 seq_puts(seq, "no memory!\n");
3992 if (pci_read_vpd(hw->pdev, 0, vpd_size, buf) < 0) {
3993 seq_puts(seq, "VPD read failed\n");
3997 if (buf[0] != VPD_MAGIC) {
3998 seq_printf(seq, "VPD tag mismatch: %#x\n", buf[0]);
4002 if (len == 0 || len > vpd_size - 4) {
4003 seq_printf(seq, "Invalid id length: %d\n", len);
4007 seq_printf(seq, "%.*s\n", len, buf + 3);
4010 while (offs < vpd_size - 4) {
4013 if (!memcmp("RW", buf + offs, 2)) /* end marker */
4015 len = buf[offs + 2];
4016 if (offs + len + 3 >= vpd_size)
4019 for (i = 0; i < ARRAY_SIZE(vpd_tags); i++) {
4020 if (!memcmp(vpd_tags[i].tag, buf + offs, 2)) {
4021 seq_printf(seq, " %s: %.*s\n",
4022 vpd_tags[i].label, len, buf + offs + 3);
4032 static int sky2_debug_show(struct seq_file *seq, void *v)
4034 struct net_device *dev = seq->private;
4035 const struct sky2_port *sky2 = netdev_priv(dev);
4036 struct sky2_hw *hw = sky2->hw;
4037 unsigned port = sky2->port;
4041 sky2_show_vpd(seq, hw);
4043 seq_printf(seq, "\nIRQ src=%x mask=%x control=%x\n",
4044 sky2_read32(hw, B0_ISRC),
4045 sky2_read32(hw, B0_IMSK),
4046 sky2_read32(hw, B0_Y2_SP_ICR));
4048 if (!netif_running(dev)) {
4049 seq_printf(seq, "network not running\n");
4053 napi_disable(&hw->napi);
4054 last = sky2_read16(hw, STAT_PUT_IDX);
4056 if (hw->st_idx == last)
4057 seq_puts(seq, "Status ring (empty)\n");
4059 seq_puts(seq, "Status ring\n");
4060 for (idx = hw->st_idx; idx != last && idx < STATUS_RING_SIZE;
4061 idx = RING_NEXT(idx, STATUS_RING_SIZE)) {
4062 const struct sky2_status_le *le = hw->st_le + idx;
4063 seq_printf(seq, "[%d] %#x %d %#x\n",
4064 idx, le->opcode, le->length, le->status);
4066 seq_puts(seq, "\n");
4069 seq_printf(seq, "Tx ring pending=%u...%u report=%d done=%d\n",
4070 sky2->tx_cons, sky2->tx_prod,
4071 sky2_read16(hw, port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX),
4072 sky2_read16(hw, Q_ADDR(txqaddr[port], Q_DONE)));
4074 /* Dump contents of tx ring */
4076 for (idx = sky2->tx_next; idx != sky2->tx_prod && idx < TX_RING_SIZE;
4077 idx = RING_NEXT(idx, TX_RING_SIZE)) {
4078 const struct sky2_tx_le *le = sky2->tx_le + idx;
4079 u32 a = le32_to_cpu(le->addr);
4082 seq_printf(seq, "%u:", idx);
4085 switch(le->opcode & ~HW_OWNER) {
4087 seq_printf(seq, " %#x:", a);
4090 seq_printf(seq, " mtu=%d", a);
4093 seq_printf(seq, " vlan=%d", be16_to_cpu(le->length));
4096 seq_printf(seq, " csum=%#x", a);
4099 seq_printf(seq, " tso=%#x(%d)", a, le16_to_cpu(le->length));
4102 seq_printf(seq, " %#x(%d)", a, le16_to_cpu(le->length));
4105 seq_printf(seq, " frag=%#x(%d)", a, le16_to_cpu(le->length));
4108 seq_printf(seq, " op=%#x,%#x(%d)", le->opcode,
4109 a, le16_to_cpu(le->length));
4112 if (le->ctrl & EOP) {
4113 seq_putc(seq, '\n');
4118 seq_printf(seq, "\nRx ring hw get=%d put=%d last=%d\n",
4119 sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_GET_IDX)),
4120 last = sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_PUT_IDX)),
4121 sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_LAST_IDX)));
4123 sky2_read32(hw, B0_Y2_SP_LISR);
4124 napi_enable(&hw->napi);
4128 static int sky2_debug_open(struct inode *inode, struct file *file)
4130 return single_open(file, sky2_debug_show, inode->i_private);
4133 static const struct file_operations sky2_debug_fops = {
4134 .owner = THIS_MODULE,
4135 .open = sky2_debug_open,
4137 .llseek = seq_lseek,
4138 .release = single_release,
4142 * Use network device events to create/remove/rename
4143 * debugfs file entries
4145 static int sky2_device_event(struct notifier_block *unused,
4146 unsigned long event, void *ptr)
4148 struct net_device *dev = ptr;
4149 struct sky2_port *sky2 = netdev_priv(dev);
4151 if (dev->netdev_ops->ndo_open != sky2_up || !sky2_debug)
4155 case NETDEV_CHANGENAME:
4156 if (sky2->debugfs) {
4157 sky2->debugfs = debugfs_rename(sky2_debug, sky2->debugfs,
4158 sky2_debug, dev->name);
4162 case NETDEV_GOING_DOWN:
4163 if (sky2->debugfs) {
4164 printk(KERN_DEBUG PFX "%s: remove debugfs\n",
4166 debugfs_remove(sky2->debugfs);
4167 sky2->debugfs = NULL;
4172 sky2->debugfs = debugfs_create_file(dev->name, S_IRUGO,
4175 if (IS_ERR(sky2->debugfs))
4176 sky2->debugfs = NULL;
4182 static struct notifier_block sky2_notifier = {
4183 .notifier_call = sky2_device_event,
4187 static __init void sky2_debug_init(void)
4191 ent = debugfs_create_dir("sky2", NULL);
4192 if (!ent || IS_ERR(ent))
4196 register_netdevice_notifier(&sky2_notifier);
4199 static __exit void sky2_debug_cleanup(void)
4202 unregister_netdevice_notifier(&sky2_notifier);
4203 debugfs_remove(sky2_debug);
4209 #define sky2_debug_init()
4210 #define sky2_debug_cleanup()
4213 /* Two copies of network device operations to handle special case of
4214 not allowing netpoll on second port */
4215 static const struct net_device_ops sky2_netdev_ops[2] = {
4217 .ndo_open = sky2_up,
4218 .ndo_stop = sky2_down,
4219 .ndo_start_xmit = sky2_xmit_frame,
4220 .ndo_do_ioctl = sky2_ioctl,
4221 .ndo_validate_addr = eth_validate_addr,
4222 .ndo_set_mac_address = sky2_set_mac_address,
4223 .ndo_set_multicast_list = sky2_set_multicast,
4224 .ndo_change_mtu = sky2_change_mtu,
4225 .ndo_tx_timeout = sky2_tx_timeout,
4226 #ifdef SKY2_VLAN_TAG_USED
4227 .ndo_vlan_rx_register = sky2_vlan_rx_register,
4229 #ifdef CONFIG_NET_POLL_CONTROLLER
4230 .ndo_poll_controller = sky2_netpoll,
4234 .ndo_open = sky2_up,
4235 .ndo_stop = sky2_down,
4236 .ndo_start_xmit = sky2_xmit_frame,
4237 .ndo_do_ioctl = sky2_ioctl,
4238 .ndo_validate_addr = eth_validate_addr,
4239 .ndo_set_mac_address = sky2_set_mac_address,
4240 .ndo_set_multicast_list = sky2_set_multicast,
4241 .ndo_change_mtu = sky2_change_mtu,
4242 .ndo_tx_timeout = sky2_tx_timeout,
4243 #ifdef SKY2_VLAN_TAG_USED
4244 .ndo_vlan_rx_register = sky2_vlan_rx_register,
4249 /* Initialize network device */
4250 static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
4252 int highmem, int wol)
4254 struct sky2_port *sky2;
4255 struct net_device *dev = alloc_etherdev(sizeof(*sky2));
4258 dev_err(&hw->pdev->dev, "etherdev alloc failed\n");
4262 SET_NETDEV_DEV(dev, &hw->pdev->dev);
4263 dev->irq = hw->pdev->irq;
4264 SET_ETHTOOL_OPS(dev, &sky2_ethtool_ops);
4265 dev->watchdog_timeo = TX_WATCHDOG;
4266 dev->netdev_ops = &sky2_netdev_ops[port];
4268 sky2 = netdev_priv(dev);
4271 sky2->msg_enable = netif_msg_init(debug, default_msg);
4273 /* Auto speed and flow control */
4274 sky2->autoneg = AUTONEG_ENABLE;
4275 sky2->flow_mode = FC_BOTH;
4279 sky2->advertising = sky2_supported_modes(hw);
4280 sky2->rx_csum = (hw->chip_id != CHIP_ID_YUKON_XL);
4283 spin_lock_init(&sky2->phy_lock);
4284 sky2->tx_pending = TX_DEF_PENDING;
4285 sky2->rx_pending = RX_DEF_PENDING;
4287 hw->dev[port] = dev;
4291 dev->features |= NETIF_F_TSO | NETIF_F_IP_CSUM | NETIF_F_SG;
4293 dev->features |= NETIF_F_HIGHDMA;
4295 #ifdef SKY2_VLAN_TAG_USED
4296 /* The workaround for FE+ status conflicts with VLAN tag detection. */
4297 if (!(sky2->hw->chip_id == CHIP_ID_YUKON_FE_P &&
4298 sky2->hw->chip_rev == CHIP_REV_YU_FE2_A0)) {
4299 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
4303 /* read the mac address */
4304 memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN);
4305 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
4310 static void __devinit sky2_show_addr(struct net_device *dev)
4312 const struct sky2_port *sky2 = netdev_priv(dev);
4314 if (netif_msg_probe(sky2))
4315 printk(KERN_INFO PFX "%s: addr %pM\n",
4316 dev->name, dev->dev_addr);
4319 /* Handle software interrupt used during MSI test */
4320 static irqreturn_t __devinit sky2_test_intr(int irq, void *dev_id)
4322 struct sky2_hw *hw = dev_id;
4323 u32 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
4328 if (status & Y2_IS_IRQ_SW) {
4329 hw->flags |= SKY2_HW_USE_MSI;
4330 wake_up(&hw->msi_wait);
4331 sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
4333 sky2_write32(hw, B0_Y2_SP_ICR, 2);
4338 /* Test interrupt path by forcing a a software IRQ */
4339 static int __devinit sky2_test_msi(struct sky2_hw *hw)
4341 struct pci_dev *pdev = hw->pdev;
4344 init_waitqueue_head (&hw->msi_wait);
4346 sky2_write32(hw, B0_IMSK, Y2_IS_IRQ_SW);
4348 err = request_irq(pdev->irq, sky2_test_intr, 0, DRV_NAME, hw);
4350 dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
4354 sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ);
4355 sky2_read8(hw, B0_CTST);
4357 wait_event_timeout(hw->msi_wait, (hw->flags & SKY2_HW_USE_MSI), HZ/10);
4359 if (!(hw->flags & SKY2_HW_USE_MSI)) {
4360 /* MSI test failed, go back to INTx mode */
4361 dev_info(&pdev->dev, "No interrupt generated using MSI, "
4362 "switching to INTx mode.\n");
4365 sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
4368 sky2_write32(hw, B0_IMSK, 0);
4369 sky2_read32(hw, B0_IMSK);
4371 free_irq(pdev->irq, hw);
4376 /* This driver supports yukon2 chipset only */
4377 static const char *sky2_name(u8 chipid, char *buf, int sz)
4379 const char *name[] = {
4381 "EC Ultra", /* 0xb4 */
4382 "Extreme", /* 0xb5 */
4386 "Supreme", /* 0xb9 */
4390 if (chipid >= CHIP_ID_YUKON_XL && chipid < CHIP_ID_YUKON_UL_2)
4391 strncpy(buf, name[chipid - CHIP_ID_YUKON_XL], sz);
4393 snprintf(buf, sz, "(chip %#x)", chipid);
4397 static int __devinit sky2_probe(struct pci_dev *pdev,
4398 const struct pci_device_id *ent)
4400 struct net_device *dev;
4402 int err, using_dac = 0, wol_default;
4406 err = pci_enable_device(pdev);
4408 dev_err(&pdev->dev, "cannot enable PCI device\n");
4412 /* Get configuration information
4413 * Note: only regular PCI config access once to test for HW issues
4414 * other PCI access through shared memory for speed and to
4415 * avoid MMCONFIG problems.
4417 err = pci_read_config_dword(pdev, PCI_DEV_REG2, ®);
4419 dev_err(&pdev->dev, "PCI read config failed\n");
4424 dev_err(&pdev->dev, "PCI configuration read error\n");
4428 err = pci_request_regions(pdev, DRV_NAME);
4430 dev_err(&pdev->dev, "cannot obtain PCI resources\n");
4431 goto err_out_disable;
4434 pci_set_master(pdev);
4436 if (sizeof(dma_addr_t) > sizeof(u32) &&
4437 !(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))) {
4439 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
4441 dev_err(&pdev->dev, "unable to obtain 64 bit DMA "
4442 "for consistent allocations\n");
4443 goto err_out_free_regions;
4446 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
4448 dev_err(&pdev->dev, "no usable DMA configuration\n");
4449 goto err_out_free_regions;
4455 /* The sk98lin vendor driver uses hardware byte swapping but
4456 * this driver uses software swapping.
4458 reg &= ~PCI_REV_DESC;
4459 err = pci_write_config_dword(pdev,PCI_DEV_REG2, reg);
4461 dev_err(&pdev->dev, "PCI write config failed\n");
4462 goto err_out_free_regions;
4466 wol_default = device_may_wakeup(&pdev->dev) ? WAKE_MAGIC : 0;
4469 hw = kzalloc(sizeof(*hw), GFP_KERNEL);
4471 dev_err(&pdev->dev, "cannot allocate hardware struct\n");
4472 goto err_out_free_regions;
4477 hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
4479 dev_err(&pdev->dev, "cannot map device registers\n");
4480 goto err_out_free_hw;
4483 /* ring for status responses */
4484 hw->st_le = pci_alloc_consistent(pdev, STATUS_LE_BYTES, &hw->st_dma);
4486 goto err_out_iounmap;
4488 err = sky2_init(hw);
4490 goto err_out_iounmap;
4492 dev_info(&pdev->dev, "Yukon-2 %s chip revision %d\n",
4493 sky2_name(hw->chip_id, buf1, sizeof(buf1)), hw->chip_rev);
4497 dev = sky2_init_netdev(hw, 0, using_dac, wol_default);
4500 goto err_out_free_pci;
4503 if (!disable_msi && pci_enable_msi(pdev) == 0) {
4504 err = sky2_test_msi(hw);
4505 if (err == -EOPNOTSUPP)
4506 pci_disable_msi(pdev);
4508 goto err_out_free_netdev;
4511 err = register_netdev(dev);
4513 dev_err(&pdev->dev, "cannot register net device\n");
4514 goto err_out_free_netdev;
4517 netif_napi_add(dev, &hw->napi, sky2_poll, NAPI_WEIGHT);
4519 err = request_irq(pdev->irq, sky2_intr,
4520 (hw->flags & SKY2_HW_USE_MSI) ? 0 : IRQF_SHARED,
4523 dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
4524 goto err_out_unregister;
4526 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
4527 napi_enable(&hw->napi);
4529 sky2_show_addr(dev);
4531 if (hw->ports > 1) {
4532 struct net_device *dev1;
4534 dev1 = sky2_init_netdev(hw, 1, using_dac, wol_default);
4536 dev_warn(&pdev->dev, "allocation for second device failed\n");
4537 else if ((err = register_netdev(dev1))) {
4538 dev_warn(&pdev->dev,
4539 "register of second port failed (%d)\n", err);
4543 sky2_show_addr(dev1);
4546 setup_timer(&hw->watchdog_timer, sky2_watchdog, (unsigned long) hw);
4547 INIT_WORK(&hw->restart_work, sky2_restart);
4549 pci_set_drvdata(pdev, hw);
4554 if (hw->flags & SKY2_HW_USE_MSI)
4555 pci_disable_msi(pdev);
4556 unregister_netdev(dev);
4557 err_out_free_netdev:
4560 sky2_write8(hw, B0_CTST, CS_RST_SET);
4561 pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
4566 err_out_free_regions:
4567 pci_release_regions(pdev);
4569 pci_disable_device(pdev);
4571 pci_set_drvdata(pdev, NULL);
4575 static void __devexit sky2_remove(struct pci_dev *pdev)
4577 struct sky2_hw *hw = pci_get_drvdata(pdev);
4583 del_timer_sync(&hw->watchdog_timer);
4584 cancel_work_sync(&hw->restart_work);
4586 for (i = hw->ports-1; i >= 0; --i)
4587 unregister_netdev(hw->dev[i]);
4589 sky2_write32(hw, B0_IMSK, 0);
4593 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
4594 sky2_write8(hw, B0_CTST, CS_RST_SET);
4595 sky2_read8(hw, B0_CTST);
4597 free_irq(pdev->irq, hw);
4598 if (hw->flags & SKY2_HW_USE_MSI)
4599 pci_disable_msi(pdev);
4600 pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
4601 pci_release_regions(pdev);
4602 pci_disable_device(pdev);
4604 for (i = hw->ports-1; i >= 0; --i)
4605 free_netdev(hw->dev[i]);
4610 pci_set_drvdata(pdev, NULL);
4614 static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
4616 struct sky2_hw *hw = pci_get_drvdata(pdev);
4622 del_timer_sync(&hw->watchdog_timer);
4623 cancel_work_sync(&hw->restart_work);
4625 for (i = 0; i < hw->ports; i++) {
4626 struct net_device *dev = hw->dev[i];
4627 struct sky2_port *sky2 = netdev_priv(dev);
4629 netif_device_detach(dev);
4630 if (netif_running(dev))
4634 sky2_wol_init(sky2);
4639 sky2_write32(hw, B0_IMSK, 0);
4640 napi_disable(&hw->napi);
4643 pci_save_state(pdev);
4644 pci_enable_wake(pdev, pci_choose_state(pdev, state), wol);
4645 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4650 static int sky2_resume(struct pci_dev *pdev)
4652 struct sky2_hw *hw = pci_get_drvdata(pdev);
4658 err = pci_set_power_state(pdev, PCI_D0);
4662 err = pci_restore_state(pdev);
4666 pci_enable_wake(pdev, PCI_D0, 0);
4668 /* Re-enable all clocks */
4669 if (hw->chip_id == CHIP_ID_YUKON_EX ||
4670 hw->chip_id == CHIP_ID_YUKON_EC_U ||
4671 hw->chip_id == CHIP_ID_YUKON_FE_P)
4672 sky2_pci_write32(hw, PCI_DEV_REG3, 0);
4675 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
4676 napi_enable(&hw->napi);
4678 for (i = 0; i < hw->ports; i++) {
4679 struct net_device *dev = hw->dev[i];
4681 netif_device_attach(dev);
4682 if (netif_running(dev)) {
4685 printk(KERN_ERR PFX "%s: could not up: %d\n",
4697 dev_err(&pdev->dev, "resume failed (%d)\n", err);
4698 pci_disable_device(pdev);
4703 static void sky2_shutdown(struct pci_dev *pdev)
4705 struct sky2_hw *hw = pci_get_drvdata(pdev);
4711 del_timer_sync(&hw->watchdog_timer);
4713 for (i = 0; i < hw->ports; i++) {
4714 struct net_device *dev = hw->dev[i];
4715 struct sky2_port *sky2 = netdev_priv(dev);
4719 sky2_wol_init(sky2);
4726 pci_enable_wake(pdev, PCI_D3hot, wol);
4727 pci_enable_wake(pdev, PCI_D3cold, wol);
4729 pci_disable_device(pdev);
4730 pci_set_power_state(pdev, PCI_D3hot);
4733 static struct pci_driver sky2_driver = {
4735 .id_table = sky2_id_table,
4736 .probe = sky2_probe,
4737 .remove = __devexit_p(sky2_remove),
4739 .suspend = sky2_suspend,
4740 .resume = sky2_resume,
4742 .shutdown = sky2_shutdown,
4745 static int __init sky2_init_module(void)
4747 pr_info(PFX "driver version " DRV_VERSION "\n");
4750 return pci_register_driver(&sky2_driver);
4753 static void __exit sky2_cleanup_module(void)
4755 pci_unregister_driver(&sky2_driver);
4756 sky2_debug_cleanup();
4759 module_init(sky2_init_module);
4760 module_exit(sky2_cleanup_module);
4762 MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver");
4763 MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
4764 MODULE_LICENSE("GPL");
4765 MODULE_VERSION(DRV_VERSION);