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 "1.24"
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->flags & SKY2_FLAG_AUTO_SPEED) &&
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->flags & SKY2_FLAG_AUTO_SPEED)
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->flags & SKY2_FLAG_AUTO_SPEED) {
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 } else { /* special defines for FIBER (88E1040S only) */
427 if (sky2->advertising & ADVERTISED_1000baseT_Full)
428 adv |= PHY_M_AN_1000X_AFD;
429 if (sky2->advertising & ADVERTISED_1000baseT_Half)
430 adv |= PHY_M_AN_1000X_AHD;
433 /* Restart Auto-negotiation */
434 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
436 /* forced speed/duplex settings */
437 ct1000 = PHY_M_1000C_MSE;
439 /* Disable auto update for duplex flow control and duplex */
440 reg |= GM_GPCR_AU_DUP_DIS | GM_GPCR_AU_SPD_DIS;
442 switch (sky2->speed) {
444 ctrl |= PHY_CT_SP1000;
445 reg |= GM_GPCR_SPEED_1000;
448 ctrl |= PHY_CT_SP100;
449 reg |= GM_GPCR_SPEED_100;
453 if (sky2->duplex == DUPLEX_FULL) {
454 reg |= GM_GPCR_DUP_FULL;
455 ctrl |= PHY_CT_DUP_MD;
456 } else if (sky2->speed < SPEED_1000)
457 sky2->flow_mode = FC_NONE;
460 if (sky2->flags & SKY2_FLAG_AUTO_PAUSE) {
461 if (sky2_is_copper(hw))
462 adv |= copper_fc_adv[sky2->flow_mode];
464 adv |= fiber_fc_adv[sky2->flow_mode];
466 reg |= GM_GPCR_AU_FCT_DIS;
467 reg |= gm_fc_disable[sky2->flow_mode];
469 /* Forward pause packets to GMAC? */
470 if (sky2->flow_mode & FC_RX)
471 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
473 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
476 gma_write16(hw, port, GM_GP_CTRL, reg);
478 if (hw->flags & SKY2_HW_GIGABIT)
479 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
481 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
482 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
484 /* Setup Phy LED's */
485 ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS);
488 switch (hw->chip_id) {
489 case CHIP_ID_YUKON_FE:
490 /* on 88E3082 these bits are at 11..9 (shifted left) */
491 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1;
493 ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR);
495 /* delete ACT LED control bits */
496 ctrl &= ~PHY_M_FELP_LED1_MSK;
497 /* change ACT LED control to blink mode */
498 ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL);
499 gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
502 case CHIP_ID_YUKON_FE_P:
503 /* Enable Link Partner Next Page */
504 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
505 ctrl |= PHY_M_PC_ENA_LIP_NP;
507 /* disable Energy Detect and enable scrambler */
508 ctrl &= ~(PHY_M_PC_ENA_ENE_DT | PHY_M_PC_DIS_SCRAMB);
509 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
511 /* set LED2 -> ACT, LED1 -> LINK, LED0 -> SPEED */
512 ctrl = PHY_M_FELP_LED2_CTRL(LED_PAR_CTRL_ACT_BL) |
513 PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_LINK) |
514 PHY_M_FELP_LED0_CTRL(LED_PAR_CTRL_SPEED);
516 gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
519 case CHIP_ID_YUKON_XL:
520 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
522 /* select page 3 to access LED control register */
523 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
525 /* set LED Function Control register */
526 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
527 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
528 PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */
529 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
530 PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */
532 /* set Polarity Control register */
533 gm_phy_write(hw, port, PHY_MARV_PHY_STAT,
534 (PHY_M_POLC_LS1_P_MIX(4) |
535 PHY_M_POLC_IS0_P_MIX(4) |
536 PHY_M_POLC_LOS_CTRL(2) |
537 PHY_M_POLC_INIT_CTRL(2) |
538 PHY_M_POLC_STA1_CTRL(2) |
539 PHY_M_POLC_STA0_CTRL(2)));
541 /* restore page register */
542 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
545 case CHIP_ID_YUKON_EC_U:
546 case CHIP_ID_YUKON_EX:
547 case CHIP_ID_YUKON_SUPR:
548 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
550 /* select page 3 to access LED control register */
551 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
553 /* set LED Function Control register */
554 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
555 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
556 PHY_M_LEDC_INIT_CTRL(8) | /* 10 Mbps */
557 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
558 PHY_M_LEDC_STA0_CTRL(7)));/* 1000 Mbps */
560 /* set Blink Rate in LED Timer Control Register */
561 gm_phy_write(hw, port, PHY_MARV_INT_MASK,
562 ledctrl | PHY_M_LED_BLINK_RT(BLINK_84MS));
563 /* restore page register */
564 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
568 /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
569 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
571 /* turn off the Rx LED (LED_RX) */
572 ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
575 if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_UL_2) {
576 /* apply fixes in PHY AFE */
577 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 255);
579 /* increase differential signal amplitude in 10BASE-T */
580 gm_phy_write(hw, port, 0x18, 0xaa99);
581 gm_phy_write(hw, port, 0x17, 0x2011);
583 if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
584 /* fix for IEEE A/B Symmetry failure in 1000BASE-T */
585 gm_phy_write(hw, port, 0x18, 0xa204);
586 gm_phy_write(hw, port, 0x17, 0x2002);
589 /* set page register to 0 */
590 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
591 } else if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
592 hw->chip_rev == CHIP_REV_YU_FE2_A0) {
593 /* apply workaround for integrated resistors calibration */
594 gm_phy_write(hw, port, PHY_MARV_PAGE_ADDR, 17);
595 gm_phy_write(hw, port, PHY_MARV_PAGE_DATA, 0x3f60);
596 } else if (hw->chip_id != CHIP_ID_YUKON_EX &&
597 hw->chip_id < CHIP_ID_YUKON_SUPR) {
598 /* no effect on Yukon-XL */
599 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
601 if ( !(sky2->flags & SKY2_FLAG_AUTO_SPEED)
602 || sky2->speed == SPEED_100) {
603 /* turn on 100 Mbps LED (LED_LINK100) */
604 ledover |= PHY_M_LED_MO_100(MO_LED_ON);
608 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
612 /* Enable phy interrupt on auto-negotiation complete (or link up) */
613 if (sky2->flags & SKY2_FLAG_AUTO_SPEED)
614 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL);
616 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
619 static const u32 phy_power[] = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD };
620 static const u32 coma_mode[] = { PCI_Y2_PHY1_COMA, PCI_Y2_PHY2_COMA };
622 static void sky2_phy_power_up(struct sky2_hw *hw, unsigned port)
626 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
627 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
628 reg1 &= ~phy_power[port];
630 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
631 reg1 |= coma_mode[port];
633 sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
634 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
635 sky2_pci_read32(hw, PCI_DEV_REG1);
637 if (hw->chip_id == CHIP_ID_YUKON_FE)
638 gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_ANE);
639 else if (hw->flags & SKY2_HW_ADV_POWER_CTL)
640 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
643 static void sky2_phy_power_down(struct sky2_hw *hw, unsigned port)
648 /* release GPHY Control reset */
649 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
651 /* release GMAC reset */
652 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
654 if (hw->flags & SKY2_HW_NEWER_PHY) {
655 /* select page 2 to access MAC control register */
656 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
658 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
659 /* allow GMII Power Down */
660 ctrl &= ~PHY_M_MAC_GMIF_PUP;
661 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
663 /* set page register back to 0 */
664 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
667 /* setup General Purpose Control Register */
668 gma_write16(hw, port, GM_GP_CTRL,
669 GM_GPCR_FL_PASS | GM_GPCR_SPEED_100 |
670 GM_GPCR_AU_DUP_DIS | GM_GPCR_AU_FCT_DIS |
673 if (hw->chip_id != CHIP_ID_YUKON_EC) {
674 if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
675 /* select page 2 to access MAC control register */
676 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
678 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
679 /* enable Power Down */
680 ctrl |= PHY_M_PC_POW_D_ENA;
681 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
683 /* set page register back to 0 */
684 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
687 /* set IEEE compatible Power Down Mode (dev. #4.99) */
688 gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_PDOWN);
691 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
692 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
693 reg1 |= phy_power[port]; /* set PHY to PowerDown/COMA Mode */
694 sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
695 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
698 /* Force a renegotiation */
699 static void sky2_phy_reinit(struct sky2_port *sky2)
701 spin_lock_bh(&sky2->phy_lock);
702 sky2_phy_init(sky2->hw, sky2->port);
703 spin_unlock_bh(&sky2->phy_lock);
706 /* Put device in state to listen for Wake On Lan */
707 static void sky2_wol_init(struct sky2_port *sky2)
709 struct sky2_hw *hw = sky2->hw;
710 unsigned port = sky2->port;
711 enum flow_control save_mode;
715 /* Bring hardware out of reset */
716 sky2_write16(hw, B0_CTST, CS_RST_CLR);
717 sky2_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR);
719 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
720 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
723 * sky2_reset will re-enable on resume
725 save_mode = sky2->flow_mode;
726 ctrl = sky2->advertising;
728 sky2->advertising &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full);
729 sky2->flow_mode = FC_NONE;
731 spin_lock_bh(&sky2->phy_lock);
732 sky2_phy_power_up(hw, port);
733 sky2_phy_init(hw, port);
734 spin_unlock_bh(&sky2->phy_lock);
736 sky2->flow_mode = save_mode;
737 sky2->advertising = ctrl;
739 /* Set GMAC to no flow control and auto update for speed/duplex */
740 gma_write16(hw, port, GM_GP_CTRL,
741 GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA|
742 GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS);
744 /* Set WOL address */
745 memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR),
746 sky2->netdev->dev_addr, ETH_ALEN);
748 /* Turn on appropriate WOL control bits */
749 sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT);
751 if (sky2->wol & WAKE_PHY)
752 ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT;
754 ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT;
756 if (sky2->wol & WAKE_MAGIC)
757 ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT;
759 ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;;
761 ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT;
762 sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl);
764 /* Turn on legacy PCI-Express PME mode */
765 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
766 reg1 |= PCI_Y2_PME_LEGACY;
767 sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
770 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
774 static void sky2_set_tx_stfwd(struct sky2_hw *hw, unsigned port)
776 struct net_device *dev = hw->dev[port];
778 if ( (hw->chip_id == CHIP_ID_YUKON_EX &&
779 hw->chip_rev != CHIP_REV_YU_EX_A0) ||
780 hw->chip_id == CHIP_ID_YUKON_FE_P ||
781 hw->chip_id == CHIP_ID_YUKON_SUPR) {
782 /* Yukon-Extreme B0 and further Extreme devices */
783 /* enable Store & Forward mode for TX */
785 if (dev->mtu <= ETH_DATA_LEN)
786 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
787 TX_JUMBO_DIS | TX_STFW_ENA);
790 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
791 TX_JUMBO_ENA| TX_STFW_ENA);
793 if (dev->mtu <= ETH_DATA_LEN)
794 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_ENA);
796 /* set Tx GMAC FIFO Almost Empty Threshold */
797 sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
798 (ECU_JUMBO_WM << 16) | ECU_AE_THR);
800 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_DIS);
802 /* Can't do offload because of lack of store/forward */
803 dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | NETIF_F_ALL_CSUM);
808 static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
810 struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
814 const u8 *addr = hw->dev[port]->dev_addr;
816 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
817 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
819 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
821 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 && port == 1) {
822 /* WA DEV_472 -- looks like crossed wires on port 2 */
823 /* clear GMAC 1 Control reset */
824 sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR);
826 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET);
827 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR);
828 } while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL ||
829 gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 ||
830 gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0);
833 sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
835 /* Enable Transmit FIFO Underrun */
836 sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
838 spin_lock_bh(&sky2->phy_lock);
839 sky2_phy_power_up(hw, port);
840 sky2_phy_init(hw, port);
841 spin_unlock_bh(&sky2->phy_lock);
844 reg = gma_read16(hw, port, GM_PHY_ADDR);
845 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
847 for (i = GM_MIB_CNT_BASE; i <= GM_MIB_CNT_END; i += 4)
848 gma_read16(hw, port, i);
849 gma_write16(hw, port, GM_PHY_ADDR, reg);
851 /* transmit control */
852 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
854 /* receive control reg: unicast + multicast + no FCS */
855 gma_write16(hw, port, GM_RX_CTRL,
856 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
858 /* transmit flow control */
859 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
861 /* transmit parameter */
862 gma_write16(hw, port, GM_TX_PARAM,
863 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
864 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
865 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) |
866 TX_BACK_OFF_LIM(TX_BOF_LIM_DEF));
868 /* serial mode register */
869 reg = DATA_BLIND_VAL(DATA_BLIND_DEF) |
870 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
872 if (hw->dev[port]->mtu > ETH_DATA_LEN)
873 reg |= GM_SMOD_JUMBO_ENA;
875 gma_write16(hw, port, GM_SERIAL_MODE, reg);
877 /* virtual address for data */
878 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
880 /* physical address: used for pause frames */
881 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
883 /* ignore counter overflows */
884 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
885 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
886 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
888 /* Configure Rx MAC FIFO */
889 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
890 rx_reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
891 if (hw->chip_id == CHIP_ID_YUKON_EX ||
892 hw->chip_id == CHIP_ID_YUKON_FE_P)
893 rx_reg |= GMF_RX_OVER_ON;
895 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), rx_reg);
897 if (hw->chip_id == CHIP_ID_YUKON_XL) {
898 /* Hardware errata - clear flush mask */
899 sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), 0);
901 /* Flush Rx MAC FIFO on any flow control or error */
902 sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);
905 /* Set threshold to 0xa (64 bytes) + 1 to workaround pause bug */
906 reg = RX_GMF_FL_THR_DEF + 1;
907 /* Another magic mystery workaround from sk98lin */
908 if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
909 hw->chip_rev == CHIP_REV_YU_FE2_A0)
911 sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), reg);
913 /* Configure Tx MAC FIFO */
914 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
915 sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
917 /* On chips without ram buffer, pause is controled by MAC level */
918 if (!(hw->flags & SKY2_HW_RAM_BUFFER)) {
919 sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8);
920 sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8);
922 sky2_set_tx_stfwd(hw, port);
925 if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
926 hw->chip_rev == CHIP_REV_YU_FE2_A0) {
927 /* disable dynamic watermark */
928 reg = sky2_read16(hw, SK_REG(port, TX_GMF_EA));
929 reg &= ~TX_DYN_WM_ENA;
930 sky2_write16(hw, SK_REG(port, TX_GMF_EA), reg);
934 /* Assign Ram Buffer allocation to queue */
935 static void sky2_ramset(struct sky2_hw *hw, u16 q, u32 start, u32 space)
939 /* convert from K bytes to qwords used for hw register */
942 end = start + space - 1;
944 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
945 sky2_write32(hw, RB_ADDR(q, RB_START), start);
946 sky2_write32(hw, RB_ADDR(q, RB_END), end);
947 sky2_write32(hw, RB_ADDR(q, RB_WP), start);
948 sky2_write32(hw, RB_ADDR(q, RB_RP), start);
950 if (q == Q_R1 || q == Q_R2) {
951 u32 tp = space - space/4;
953 /* On receive queue's set the thresholds
954 * give receiver priority when > 3/4 full
955 * send pause when down to 2K
957 sky2_write32(hw, RB_ADDR(q, RB_RX_UTHP), tp);
958 sky2_write32(hw, RB_ADDR(q, RB_RX_LTHP), space/2);
961 sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp);
962 sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4);
964 /* Enable store & forward on Tx queue's because
965 * Tx FIFO is only 1K on Yukon
967 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
970 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
971 sky2_read8(hw, RB_ADDR(q, RB_CTRL));
974 /* Setup Bus Memory Interface */
975 static void sky2_qset(struct sky2_hw *hw, u16 q)
977 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET);
978 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT);
979 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON);
980 sky2_write32(hw, Q_ADDR(q, Q_WM), BMU_WM_DEFAULT);
983 /* Setup prefetch unit registers. This is the interface between
984 * hardware and driver list elements
986 static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr,
989 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
990 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR);
991 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), addr >> 32);
992 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), (u32) addr);
993 sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last);
994 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON);
996 sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL));
999 static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2, u16 *slot)
1001 struct sky2_tx_le *le = sky2->tx_le + *slot;
1003 *slot = RING_NEXT(*slot, TX_RING_SIZE);
1008 static void tx_init(struct sky2_port *sky2)
1010 struct sky2_tx_le *le;
1012 sky2->tx_prod = sky2->tx_cons = 0;
1013 sky2->tx_tcpsum = 0;
1014 sky2->tx_last_mss = 0;
1016 le = get_tx_le(sky2, &sky2->tx_prod);
1018 le->opcode = OP_ADDR64 | HW_OWNER;
1021 static inline struct tx_ring_info *tx_le_re(struct sky2_port *sky2,
1022 struct sky2_tx_le *le)
1024 return sky2->tx_ring + (le - sky2->tx_le);
1027 /* Update chip's next pointer */
1028 static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, u16 idx)
1030 /* Make sure write' to descriptors are complete before we tell hardware */
1032 sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx);
1034 /* Synchronize I/O on since next processor may write to tail */
1039 static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2)
1041 struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put;
1042 sky2->rx_put = RING_NEXT(sky2->rx_put, RX_LE_SIZE);
1047 /* Build description to hardware for one receive segment */
1048 static void sky2_rx_add(struct sky2_port *sky2, u8 op,
1049 dma_addr_t map, unsigned len)
1051 struct sky2_rx_le *le;
1053 if (sizeof(dma_addr_t) > sizeof(u32)) {
1054 le = sky2_next_rx(sky2);
1055 le->addr = cpu_to_le32(upper_32_bits(map));
1056 le->opcode = OP_ADDR64 | HW_OWNER;
1059 le = sky2_next_rx(sky2);
1060 le->addr = cpu_to_le32((u32) map);
1061 le->length = cpu_to_le16(len);
1062 le->opcode = op | HW_OWNER;
1065 /* Build description to hardware for one possibly fragmented skb */
1066 static void sky2_rx_submit(struct sky2_port *sky2,
1067 const struct rx_ring_info *re)
1071 sky2_rx_add(sky2, OP_PACKET, re->data_addr, sky2->rx_data_size);
1073 for (i = 0; i < skb_shinfo(re->skb)->nr_frags; i++)
1074 sky2_rx_add(sky2, OP_BUFFER, re->frag_addr[i], PAGE_SIZE);
1078 static int sky2_rx_map_skb(struct pci_dev *pdev, struct rx_ring_info *re,
1081 struct sk_buff *skb = re->skb;
1084 re->data_addr = pci_map_single(pdev, skb->data, size, PCI_DMA_FROMDEVICE);
1085 if (unlikely(pci_dma_mapping_error(pdev, re->data_addr)))
1088 pci_unmap_len_set(re, data_size, size);
1090 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
1091 re->frag_addr[i] = pci_map_page(pdev,
1092 skb_shinfo(skb)->frags[i].page,
1093 skb_shinfo(skb)->frags[i].page_offset,
1094 skb_shinfo(skb)->frags[i].size,
1095 PCI_DMA_FROMDEVICE);
1099 static void sky2_rx_unmap_skb(struct pci_dev *pdev, struct rx_ring_info *re)
1101 struct sk_buff *skb = re->skb;
1104 pci_unmap_single(pdev, re->data_addr, pci_unmap_len(re, data_size),
1105 PCI_DMA_FROMDEVICE);
1107 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
1108 pci_unmap_page(pdev, re->frag_addr[i],
1109 skb_shinfo(skb)->frags[i].size,
1110 PCI_DMA_FROMDEVICE);
1113 /* Tell chip where to start receive checksum.
1114 * Actually has two checksums, but set both same to avoid possible byte
1117 static void rx_set_checksum(struct sky2_port *sky2)
1119 struct sky2_rx_le *le = sky2_next_rx(sky2);
1121 le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN);
1123 le->opcode = OP_TCPSTART | HW_OWNER;
1125 sky2_write32(sky2->hw,
1126 Q_ADDR(rxqaddr[sky2->port], Q_CSR),
1127 (sky2->flags & SKY2_FLAG_RX_CHECKSUM)
1128 ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
1132 * The RX Stop command will not work for Yukon-2 if the BMU does not
1133 * reach the end of packet and since we can't make sure that we have
1134 * incoming data, we must reset the BMU while it is not doing a DMA
1135 * transfer. Since it is possible that the RX path is still active,
1136 * the RX RAM buffer will be stopped first, so any possible incoming
1137 * data will not trigger a DMA. After the RAM buffer is stopped, the
1138 * BMU is polled until any DMA in progress is ended and only then it
1141 static void sky2_rx_stop(struct sky2_port *sky2)
1143 struct sky2_hw *hw = sky2->hw;
1144 unsigned rxq = rxqaddr[sky2->port];
1147 /* disable the RAM Buffer receive queue */
1148 sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD);
1150 for (i = 0; i < 0xffff; i++)
1151 if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL))
1152 == sky2_read8(hw, RB_ADDR(rxq, Q_RL)))
1155 printk(KERN_WARNING PFX "%s: receiver stop failed\n",
1156 sky2->netdev->name);
1158 sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST);
1160 /* reset the Rx prefetch unit */
1161 sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
1165 /* Clean out receive buffer area, assumes receiver hardware stopped */
1166 static void sky2_rx_clean(struct sky2_port *sky2)
1170 memset(sky2->rx_le, 0, RX_LE_BYTES);
1171 for (i = 0; i < sky2->rx_pending; i++) {
1172 struct rx_ring_info *re = sky2->rx_ring + i;
1175 sky2_rx_unmap_skb(sky2->hw->pdev, re);
1180 skb_queue_purge(&sky2->rx_recycle);
1183 /* Basic MII support */
1184 static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
1186 struct mii_ioctl_data *data = if_mii(ifr);
1187 struct sky2_port *sky2 = netdev_priv(dev);
1188 struct sky2_hw *hw = sky2->hw;
1189 int err = -EOPNOTSUPP;
1191 if (!netif_running(dev))
1192 return -ENODEV; /* Phy still in reset */
1196 data->phy_id = PHY_ADDR_MARV;
1202 spin_lock_bh(&sky2->phy_lock);
1203 err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val);
1204 spin_unlock_bh(&sky2->phy_lock);
1206 data->val_out = val;
1211 if (!capable(CAP_NET_ADMIN))
1214 spin_lock_bh(&sky2->phy_lock);
1215 err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f,
1217 spin_unlock_bh(&sky2->phy_lock);
1223 #ifdef SKY2_VLAN_TAG_USED
1224 static void sky2_set_vlan_mode(struct sky2_hw *hw, u16 port, bool onoff)
1227 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
1229 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
1232 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
1234 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
1239 static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
1241 struct sky2_port *sky2 = netdev_priv(dev);
1242 struct sky2_hw *hw = sky2->hw;
1243 u16 port = sky2->port;
1245 netif_tx_lock_bh(dev);
1246 napi_disable(&hw->napi);
1249 sky2_set_vlan_mode(hw, port, grp != NULL);
1251 sky2_read32(hw, B0_Y2_SP_LISR);
1252 napi_enable(&hw->napi);
1253 netif_tx_unlock_bh(dev);
1257 /* Amount of required worst case padding in rx buffer */
1258 static inline unsigned sky2_rx_pad(const struct sky2_hw *hw)
1260 return (hw->flags & SKY2_HW_RAM_BUFFER) ? 8 : 2;
1264 * Allocate an skb for receiving. If the MTU is large enough
1265 * make the skb non-linear with a fragment list of pages.
1267 static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2)
1269 struct sk_buff *skb;
1272 skb = __skb_dequeue(&sky2->rx_recycle);
1274 skb = netdev_alloc_skb(sky2->netdev, sky2->rx_data_size
1275 + sky2_rx_pad(sky2->hw));
1279 if (sky2->hw->flags & SKY2_HW_RAM_BUFFER) {
1280 unsigned char *start;
1282 * Workaround for a bug in FIFO that cause hang
1283 * if the FIFO if the receive buffer is not 64 byte aligned.
1284 * The buffer returned from netdev_alloc_skb is
1285 * aligned except if slab debugging is enabled.
1287 start = PTR_ALIGN(skb->data, 8);
1288 skb_reserve(skb, start - skb->data);
1290 skb_reserve(skb, NET_IP_ALIGN);
1292 for (i = 0; i < sky2->rx_nfrags; i++) {
1293 struct page *page = alloc_page(GFP_ATOMIC);
1297 skb_fill_page_desc(skb, i, page, 0, PAGE_SIZE);
1307 static inline void sky2_rx_update(struct sky2_port *sky2, unsigned rxq)
1309 sky2_put_idx(sky2->hw, rxq, sky2->rx_put);
1313 * Allocate and setup receiver buffer pool.
1314 * Normal case this ends up creating one list element for skb
1315 * in the receive ring. Worst case if using large MTU and each
1316 * allocation falls on a different 64 bit region, that results
1317 * in 6 list elements per ring entry.
1318 * One element is used for checksum enable/disable, and one
1319 * extra to avoid wrap.
1321 static int sky2_rx_start(struct sky2_port *sky2)
1323 struct sky2_hw *hw = sky2->hw;
1324 struct rx_ring_info *re;
1325 unsigned rxq = rxqaddr[sky2->port];
1326 unsigned i, size, thresh;
1328 sky2->rx_put = sky2->rx_next = 0;
1331 /* On PCI express lowering the watermark gives better performance */
1332 if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP))
1333 sky2_write32(hw, Q_ADDR(rxq, Q_WM), BMU_WM_PEX);
1335 /* These chips have no ram buffer?
1336 * MAC Rx RAM Read is controlled by hardware */
1337 if (hw->chip_id == CHIP_ID_YUKON_EC_U &&
1338 (hw->chip_rev == CHIP_REV_YU_EC_U_A1
1339 || hw->chip_rev == CHIP_REV_YU_EC_U_B0))
1340 sky2_write32(hw, Q_ADDR(rxq, Q_TEST), F_M_RX_RAM_DIS);
1342 sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1);
1344 if (!(hw->flags & SKY2_HW_NEW_LE))
1345 rx_set_checksum(sky2);
1347 /* Space needed for frame data + headers rounded up */
1348 size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8);
1350 /* Stopping point for hardware truncation */
1351 thresh = (size - 8) / sizeof(u32);
1353 sky2->rx_nfrags = size >> PAGE_SHIFT;
1354 BUG_ON(sky2->rx_nfrags > ARRAY_SIZE(re->frag_addr));
1356 /* Compute residue after pages */
1357 size -= sky2->rx_nfrags << PAGE_SHIFT;
1359 /* Optimize to handle small packets and headers */
1360 if (size < copybreak)
1362 if (size < ETH_HLEN)
1365 sky2->rx_data_size = size;
1367 skb_queue_head_init(&sky2->rx_recycle);
1370 for (i = 0; i < sky2->rx_pending; i++) {
1371 re = sky2->rx_ring + i;
1373 re->skb = sky2_rx_alloc(sky2);
1377 if (sky2_rx_map_skb(hw->pdev, re, sky2->rx_data_size)) {
1378 dev_kfree_skb(re->skb);
1383 sky2_rx_submit(sky2, re);
1387 * The receiver hangs if it receives frames larger than the
1388 * packet buffer. As a workaround, truncate oversize frames, but
1389 * the register is limited to 9 bits, so if you do frames > 2052
1390 * you better get the MTU right!
1393 sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_OFF);
1395 sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), thresh);
1396 sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON);
1399 /* Tell chip about available buffers */
1400 sky2_rx_update(sky2, rxq);
1403 sky2_rx_clean(sky2);
1407 /* Bring up network interface. */
1408 static int sky2_up(struct net_device *dev)
1410 struct sky2_port *sky2 = netdev_priv(dev);
1411 struct sky2_hw *hw = sky2->hw;
1412 unsigned port = sky2->port;
1414 int cap, err = -ENOMEM;
1415 struct net_device *otherdev = hw->dev[sky2->port^1];
1418 * On dual port PCI-X card, there is an problem where status
1419 * can be received out of order due to split transactions
1421 if (otherdev && netif_running(otherdev) &&
1422 (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) {
1425 cmd = sky2_pci_read16(hw, cap + PCI_X_CMD);
1426 cmd &= ~PCI_X_CMD_MAX_SPLIT;
1427 sky2_pci_write16(hw, cap + PCI_X_CMD, cmd);
1431 netif_carrier_off(dev);
1433 /* must be power of 2 */
1434 sky2->tx_le = pci_alloc_consistent(hw->pdev,
1436 sizeof(struct sky2_tx_le),
1441 sky2->tx_ring = kcalloc(TX_RING_SIZE, sizeof(struct tx_ring_info),
1448 sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES,
1452 memset(sky2->rx_le, 0, RX_LE_BYTES);
1454 sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct rx_ring_info),
1459 sky2_mac_init(hw, port);
1461 /* Register is number of 4K blocks on internal RAM buffer. */
1462 ramsize = sky2_read8(hw, B2_E_0) * 4;
1466 hw->flags |= SKY2_HW_RAM_BUFFER;
1467 pr_debug(PFX "%s: ram buffer %dK\n", dev->name, ramsize);
1469 rxspace = ramsize / 2;
1471 rxspace = 8 + (2*(ramsize - 16))/3;
1473 sky2_ramset(hw, rxqaddr[port], 0, rxspace);
1474 sky2_ramset(hw, txqaddr[port], rxspace, ramsize - rxspace);
1476 /* Make sure SyncQ is disabled */
1477 sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL),
1481 sky2_qset(hw, txqaddr[port]);
1483 /* This is copied from sk98lin 10.0.5.3; no one tells me about erratta's */
1484 if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev == CHIP_REV_YU_EX_B0)
1485 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_TEST), F_TX_CHK_AUTO_OFF);
1487 /* Set almost empty threshold */
1488 if (hw->chip_id == CHIP_ID_YUKON_EC_U
1489 && hw->chip_rev == CHIP_REV_YU_EC_U_A0)
1490 sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), ECU_TXFF_LEV);
1492 sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map,
1495 #ifdef SKY2_VLAN_TAG_USED
1496 sky2_set_vlan_mode(hw, port, sky2->vlgrp != NULL);
1499 err = sky2_rx_start(sky2);
1503 /* Enable interrupts from phy/mac for port */
1504 imask = sky2_read32(hw, B0_IMSK);
1505 imask |= portirq_msk[port];
1506 sky2_write32(hw, B0_IMSK, imask);
1507 sky2_read32(hw, B0_IMSK);
1509 if (netif_msg_ifup(sky2))
1510 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
1516 pci_free_consistent(hw->pdev, RX_LE_BYTES,
1517 sky2->rx_le, sky2->rx_le_map);
1521 pci_free_consistent(hw->pdev,
1522 TX_RING_SIZE * sizeof(struct sky2_tx_le),
1523 sky2->tx_le, sky2->tx_le_map);
1526 kfree(sky2->tx_ring);
1527 kfree(sky2->rx_ring);
1529 sky2->tx_ring = NULL;
1530 sky2->rx_ring = NULL;
1534 /* Modular subtraction in ring */
1535 static inline int tx_dist(unsigned tail, unsigned head)
1537 return (head - tail) & (TX_RING_SIZE - 1);
1540 /* Number of list elements available for next tx */
1541 static inline int tx_avail(const struct sky2_port *sky2)
1543 return sky2->tx_pending - tx_dist(sky2->tx_cons, sky2->tx_prod);
1546 /* Estimate of number of transmit list elements required */
1547 static unsigned tx_le_req(const struct sk_buff *skb)
1551 count = sizeof(dma_addr_t) / sizeof(u32);
1552 count += skb_shinfo(skb)->nr_frags * count;
1554 if (skb_is_gso(skb))
1557 if (skb->ip_summed == CHECKSUM_PARTIAL)
1564 * Put one packet in ring for transmit.
1565 * A single packet can generate multiple list elements, and
1566 * the number of ring elements will probably be less than the number
1567 * of list elements used.
1569 static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
1571 struct sky2_port *sky2 = netdev_priv(dev);
1572 struct sky2_hw *hw = sky2->hw;
1573 struct sky2_tx_le *le = NULL;
1574 struct tx_ring_info *re;
1581 if (unlikely(tx_avail(sky2) < tx_le_req(skb)))
1582 return NETDEV_TX_BUSY;
1584 len = skb_headlen(skb);
1585 mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
1587 if (pci_dma_mapping_error(hw->pdev, mapping))
1590 slot = sky2->tx_prod;
1591 if (unlikely(netif_msg_tx_queued(sky2)))
1592 printk(KERN_DEBUG "%s: tx queued, slot %u, len %d\n",
1593 dev->name, slot, skb->len);
1595 /* Send high bits if needed */
1596 if (sizeof(dma_addr_t) > sizeof(u32)) {
1597 le = get_tx_le(sky2, &slot);
1598 le->addr = cpu_to_le32(upper_32_bits(mapping));
1599 le->opcode = OP_ADDR64 | HW_OWNER;
1602 /* Check for TCP Segmentation Offload */
1603 mss = skb_shinfo(skb)->gso_size;
1606 if (!(hw->flags & SKY2_HW_NEW_LE))
1607 mss += ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb);
1609 if (mss != sky2->tx_last_mss) {
1610 le = get_tx_le(sky2, &slot);
1611 le->addr = cpu_to_le32(mss);
1613 if (hw->flags & SKY2_HW_NEW_LE)
1614 le->opcode = OP_MSS | HW_OWNER;
1616 le->opcode = OP_LRGLEN | HW_OWNER;
1617 sky2->tx_last_mss = mss;
1622 #ifdef SKY2_VLAN_TAG_USED
1623 /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */
1624 if (sky2->vlgrp && vlan_tx_tag_present(skb)) {
1626 le = get_tx_le(sky2, &slot);
1628 le->opcode = OP_VLAN|HW_OWNER;
1630 le->opcode |= OP_VLAN;
1631 le->length = cpu_to_be16(vlan_tx_tag_get(skb));
1636 /* Handle TCP checksum offload */
1637 if (skb->ip_summed == CHECKSUM_PARTIAL) {
1638 /* On Yukon EX (some versions) encoding change. */
1639 if (hw->flags & SKY2_HW_AUTO_TX_SUM)
1640 ctrl |= CALSUM; /* auto checksum */
1642 const unsigned offset = skb_transport_offset(skb);
1645 tcpsum = offset << 16; /* sum start */
1646 tcpsum |= offset + skb->csum_offset; /* sum write */
1648 ctrl |= CALSUM | WR_SUM | INIT_SUM | LOCK_SUM;
1649 if (ip_hdr(skb)->protocol == IPPROTO_UDP)
1652 if (tcpsum != sky2->tx_tcpsum) {
1653 sky2->tx_tcpsum = tcpsum;
1655 le = get_tx_le(sky2, &slot);
1656 le->addr = cpu_to_le32(tcpsum);
1657 le->length = 0; /* initial checksum value */
1658 le->ctrl = 1; /* one packet */
1659 le->opcode = OP_TCPLISW | HW_OWNER;
1664 le = get_tx_le(sky2, &slot);
1665 le->addr = cpu_to_le32((u32) mapping);
1666 le->length = cpu_to_le16(len);
1668 le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER);
1670 re = tx_le_re(sky2, le);
1672 pci_unmap_addr_set(re, mapaddr, mapping);
1673 pci_unmap_len_set(re, maplen, len);
1675 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
1676 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1678 mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset,
1679 frag->size, PCI_DMA_TODEVICE);
1681 if (pci_dma_mapping_error(hw->pdev, mapping))
1682 goto mapping_unwind;
1684 if (sizeof(dma_addr_t) > sizeof(u32)) {
1685 le = get_tx_le(sky2, &slot);
1686 le->addr = cpu_to_le32(upper_32_bits(mapping));
1688 le->opcode = OP_ADDR64 | HW_OWNER;
1691 le = get_tx_le(sky2, &slot);
1692 le->addr = cpu_to_le32((u32) mapping);
1693 le->length = cpu_to_le16(frag->size);
1695 le->opcode = OP_BUFFER | HW_OWNER;
1697 re = tx_le_re(sky2, le);
1699 pci_unmap_addr_set(re, mapaddr, mapping);
1700 pci_unmap_len_set(re, maplen, frag->size);
1705 sky2->tx_prod = slot;
1707 if (tx_avail(sky2) <= MAX_SKB_TX_LE)
1708 netif_stop_queue(dev);
1710 sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod);
1712 return NETDEV_TX_OK;
1715 for (i = sky2->tx_prod; i != slot; i = RING_NEXT(i, TX_RING_SIZE)) {
1716 le = sky2->tx_le + i;
1717 re = sky2->tx_ring + i;
1719 switch(le->opcode & ~HW_OWNER) {
1722 pci_unmap_single(hw->pdev,
1723 pci_unmap_addr(re, mapaddr),
1724 pci_unmap_len(re, maplen),
1728 pci_unmap_page(hw->pdev, pci_unmap_addr(re, mapaddr),
1729 pci_unmap_len(re, maplen),
1736 if (net_ratelimit())
1737 dev_warn(&hw->pdev->dev, "%s: tx mapping error\n", dev->name);
1739 return NETDEV_TX_OK;
1743 * Free ring elements from starting at tx_cons until "done"
1746 * 1. The hardware will tell us about partial completion of multi-part
1747 * buffers so make sure not to free skb to early.
1748 * 2. This may run in parallel start_xmit because the it only
1749 * looks at the tail of the queue of FIFO (tx_cons), not
1750 * the head (tx_prod)
1752 static void sky2_tx_complete(struct sky2_port *sky2, u16 done)
1754 struct net_device *dev = sky2->netdev;
1755 struct pci_dev *pdev = sky2->hw->pdev;
1758 BUG_ON(done >= TX_RING_SIZE);
1760 for (idx = sky2->tx_cons; idx != done;
1761 idx = RING_NEXT(idx, TX_RING_SIZE)) {
1762 struct sky2_tx_le *le = sky2->tx_le + idx;
1763 struct tx_ring_info *re = sky2->tx_ring + idx;
1765 switch(le->opcode & ~HW_OWNER) {
1768 pci_unmap_single(pdev,
1769 pci_unmap_addr(re, mapaddr),
1770 pci_unmap_len(re, maplen),
1774 pci_unmap_page(pdev, pci_unmap_addr(re, mapaddr),
1775 pci_unmap_len(re, maplen),
1780 if (le->ctrl & EOP) {
1781 struct sk_buff *skb = re->skb;
1783 if (unlikely(netif_msg_tx_done(sky2)))
1784 printk(KERN_DEBUG "%s: tx done %u\n",
1787 dev->stats.tx_packets++;
1788 dev->stats.tx_bytes += skb->len;
1790 if (skb_queue_len(&sky2->rx_recycle) < sky2->rx_pending
1791 && skb_recycle_check(skb, sky2->rx_data_size
1792 + sky2_rx_pad(sky2->hw)))
1793 __skb_queue_head(&sky2->rx_recycle, skb);
1795 dev_kfree_skb_any(skb);
1797 sky2->tx_next = RING_NEXT(idx, TX_RING_SIZE);
1801 sky2->tx_cons = idx;
1804 if (tx_avail(sky2) > MAX_SKB_TX_LE + 4)
1805 netif_wake_queue(dev);
1808 static void sky2_tx_reset(struct sky2_hw *hw, unsigned port)
1810 /* Disable Force Sync bit and Enable Alloc bit */
1811 sky2_write8(hw, SK_REG(port, TXA_CTRL),
1812 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
1814 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
1815 sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
1816 sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
1818 /* Reset the PCI FIFO of the async Tx queue */
1819 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR),
1820 BMU_RST_SET | BMU_FIFO_RST);
1822 /* Reset the Tx prefetch units */
1823 sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL),
1826 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
1827 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
1830 /* Network shutdown */
1831 static int sky2_down(struct net_device *dev)
1833 struct sky2_port *sky2 = netdev_priv(dev);
1834 struct sky2_hw *hw = sky2->hw;
1835 unsigned port = sky2->port;
1839 /* Never really got started! */
1843 if (netif_msg_ifdown(sky2))
1844 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
1846 /* Force flow control off */
1847 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1849 /* Stop transmitter */
1850 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP);
1851 sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR));
1853 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
1854 RB_RST_SET | RB_DIS_OP_MD);
1856 ctrl = gma_read16(hw, port, GM_GP_CTRL);
1857 ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA);
1858 gma_write16(hw, port, GM_GP_CTRL, ctrl);
1860 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
1862 /* Workaround shared GMAC reset */
1863 if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0
1864 && port == 0 && hw->dev[1] && netif_running(hw->dev[1])))
1865 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
1867 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
1869 /* Force any delayed status interrrupt and NAPI */
1870 sky2_write32(hw, STAT_LEV_TIMER_CNT, 0);
1871 sky2_write32(hw, STAT_TX_TIMER_CNT, 0);
1872 sky2_write32(hw, STAT_ISR_TIMER_CNT, 0);
1873 sky2_read8(hw, STAT_ISR_TIMER_CTRL);
1877 /* Disable port IRQ */
1878 imask = sky2_read32(hw, B0_IMSK);
1879 imask &= ~portirq_msk[port];
1880 sky2_write32(hw, B0_IMSK, imask);
1881 sky2_read32(hw, B0_IMSK);
1883 synchronize_irq(hw->pdev->irq);
1884 napi_synchronize(&hw->napi);
1886 spin_lock_bh(&sky2->phy_lock);
1887 sky2_phy_power_down(hw, port);
1888 spin_unlock_bh(&sky2->phy_lock);
1890 /* turn off LED's */
1891 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
1893 sky2_tx_reset(hw, port);
1895 /* Free any pending frames stuck in HW queue */
1896 sky2_tx_complete(sky2, sky2->tx_prod);
1898 sky2_rx_clean(sky2);
1900 pci_free_consistent(hw->pdev, RX_LE_BYTES,
1901 sky2->rx_le, sky2->rx_le_map);
1902 kfree(sky2->rx_ring);
1904 pci_free_consistent(hw->pdev,
1905 TX_RING_SIZE * sizeof(struct sky2_tx_le),
1906 sky2->tx_le, sky2->tx_le_map);
1907 kfree(sky2->tx_ring);
1912 sky2->rx_ring = NULL;
1913 sky2->tx_ring = NULL;
1918 static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux)
1920 if (hw->flags & SKY2_HW_FIBRE_PHY)
1923 if (!(hw->flags & SKY2_HW_GIGABIT)) {
1924 if (aux & PHY_M_PS_SPEED_100)
1930 switch (aux & PHY_M_PS_SPEED_MSK) {
1931 case PHY_M_PS_SPEED_1000:
1933 case PHY_M_PS_SPEED_100:
1940 static void sky2_link_up(struct sky2_port *sky2)
1942 struct sky2_hw *hw = sky2->hw;
1943 unsigned port = sky2->port;
1945 static const char *fc_name[] = {
1953 reg = gma_read16(hw, port, GM_GP_CTRL);
1954 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
1955 gma_write16(hw, port, GM_GP_CTRL, reg);
1957 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
1959 netif_carrier_on(sky2->netdev);
1961 mod_timer(&hw->watchdog_timer, jiffies + 1);
1963 /* Turn on link LED */
1964 sky2_write8(hw, SK_REG(port, LNK_LED_REG),
1965 LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF);
1967 if (netif_msg_link(sky2))
1968 printk(KERN_INFO PFX
1969 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
1970 sky2->netdev->name, sky2->speed,
1971 sky2->duplex == DUPLEX_FULL ? "full" : "half",
1972 fc_name[sky2->flow_status]);
1975 static void sky2_link_down(struct sky2_port *sky2)
1977 struct sky2_hw *hw = sky2->hw;
1978 unsigned port = sky2->port;
1981 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
1983 reg = gma_read16(hw, port, GM_GP_CTRL);
1984 reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
1985 gma_write16(hw, port, GM_GP_CTRL, reg);
1987 netif_carrier_off(sky2->netdev);
1989 /* Turn on link LED */
1990 sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
1992 if (netif_msg_link(sky2))
1993 printk(KERN_INFO PFX "%s: Link is down.\n", sky2->netdev->name);
1995 sky2_phy_init(hw, port);
1998 static enum flow_control sky2_flow(int rx, int tx)
2001 return tx ? FC_BOTH : FC_RX;
2003 return tx ? FC_TX : FC_NONE;
2006 static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux)
2008 struct sky2_hw *hw = sky2->hw;
2009 unsigned port = sky2->port;
2012 advert = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV);
2013 lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP);
2014 if (lpa & PHY_M_AN_RF) {
2015 printk(KERN_ERR PFX "%s: remote fault", sky2->netdev->name);
2019 if (!(aux & PHY_M_PS_SPDUP_RES)) {
2020 printk(KERN_ERR PFX "%s: speed/duplex mismatch",
2021 sky2->netdev->name);
2025 sky2->speed = sky2_phy_speed(hw, aux);
2026 sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
2028 /* Since the pause result bits seem to in different positions on
2029 * different chips. look at registers.
2031 if (hw->flags & SKY2_HW_FIBRE_PHY) {
2032 /* Shift for bits in fiber PHY */
2033 advert &= ~(ADVERTISE_PAUSE_CAP|ADVERTISE_PAUSE_ASYM);
2034 lpa &= ~(LPA_PAUSE_CAP|LPA_PAUSE_ASYM);
2036 if (advert & ADVERTISE_1000XPAUSE)
2037 advert |= ADVERTISE_PAUSE_CAP;
2038 if (advert & ADVERTISE_1000XPSE_ASYM)
2039 advert |= ADVERTISE_PAUSE_ASYM;
2040 if (lpa & LPA_1000XPAUSE)
2041 lpa |= LPA_PAUSE_CAP;
2042 if (lpa & LPA_1000XPAUSE_ASYM)
2043 lpa |= LPA_PAUSE_ASYM;
2046 sky2->flow_status = FC_NONE;
2047 if (advert & ADVERTISE_PAUSE_CAP) {
2048 if (lpa & LPA_PAUSE_CAP)
2049 sky2->flow_status = FC_BOTH;
2050 else if (advert & ADVERTISE_PAUSE_ASYM)
2051 sky2->flow_status = FC_RX;
2052 } else if (advert & ADVERTISE_PAUSE_ASYM) {
2053 if ((lpa & LPA_PAUSE_CAP) && (lpa & LPA_PAUSE_ASYM))
2054 sky2->flow_status = FC_TX;
2057 if (sky2->duplex == DUPLEX_HALF && sky2->speed < SPEED_1000
2058 && !(hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX))
2059 sky2->flow_status = FC_NONE;
2061 if (sky2->flow_status & FC_TX)
2062 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
2064 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
2069 /* Interrupt from PHY */
2070 static void sky2_phy_intr(struct sky2_hw *hw, unsigned port)
2072 struct net_device *dev = hw->dev[port];
2073 struct sky2_port *sky2 = netdev_priv(dev);
2074 u16 istatus, phystat;
2076 if (!netif_running(dev))
2079 spin_lock(&sky2->phy_lock);
2080 istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
2081 phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
2083 if (netif_msg_intr(sky2))
2084 printk(KERN_INFO PFX "%s: phy interrupt status 0x%x 0x%x\n",
2085 sky2->netdev->name, istatus, phystat);
2087 if (istatus & PHY_M_IS_AN_COMPL) {
2088 if (sky2_autoneg_done(sky2, phystat) == 0)
2093 if (istatus & PHY_M_IS_LSP_CHANGE)
2094 sky2->speed = sky2_phy_speed(hw, phystat);
2096 if (istatus & PHY_M_IS_DUP_CHANGE)
2098 (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
2100 if (istatus & PHY_M_IS_LST_CHANGE) {
2101 if (phystat & PHY_M_PS_LINK_UP)
2104 sky2_link_down(sky2);
2107 spin_unlock(&sky2->phy_lock);
2110 /* Transmit timeout is only called if we are running, carrier is up
2111 * and tx queue is full (stopped).
2113 static void sky2_tx_timeout(struct net_device *dev)
2115 struct sky2_port *sky2 = netdev_priv(dev);
2116 struct sky2_hw *hw = sky2->hw;
2118 if (netif_msg_timer(sky2))
2119 printk(KERN_ERR PFX "%s: tx timeout\n", dev->name);
2121 printk(KERN_DEBUG PFX "%s: transmit ring %u .. %u report=%u done=%u\n",
2122 dev->name, sky2->tx_cons, sky2->tx_prod,
2123 sky2_read16(hw, sky2->port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX),
2124 sky2_read16(hw, Q_ADDR(txqaddr[sky2->port], Q_DONE)));
2126 /* can't restart safely under softirq */
2127 schedule_work(&hw->restart_work);
2130 static int sky2_change_mtu(struct net_device *dev, int new_mtu)
2132 struct sky2_port *sky2 = netdev_priv(dev);
2133 struct sky2_hw *hw = sky2->hw;
2134 unsigned port = sky2->port;
2139 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
2142 if (new_mtu > ETH_DATA_LEN &&
2143 (hw->chip_id == CHIP_ID_YUKON_FE ||
2144 hw->chip_id == CHIP_ID_YUKON_FE_P))
2147 if (!netif_running(dev)) {
2152 imask = sky2_read32(hw, B0_IMSK);
2153 sky2_write32(hw, B0_IMSK, 0);
2155 dev->trans_start = jiffies; /* prevent tx timeout */
2156 netif_stop_queue(dev);
2157 napi_disable(&hw->napi);
2159 synchronize_irq(hw->pdev->irq);
2161 if (!(hw->flags & SKY2_HW_RAM_BUFFER))
2162 sky2_set_tx_stfwd(hw, port);
2164 ctl = gma_read16(hw, port, GM_GP_CTRL);
2165 gma_write16(hw, port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA);
2167 sky2_rx_clean(sky2);
2171 mode = DATA_BLIND_VAL(DATA_BLIND_DEF) |
2172 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
2174 if (dev->mtu > ETH_DATA_LEN)
2175 mode |= GM_SMOD_JUMBO_ENA;
2177 gma_write16(hw, port, GM_SERIAL_MODE, mode);
2179 sky2_write8(hw, RB_ADDR(rxqaddr[port], RB_CTRL), RB_ENA_OP_MD);
2181 err = sky2_rx_start(sky2);
2182 sky2_write32(hw, B0_IMSK, imask);
2184 sky2_read32(hw, B0_Y2_SP_LISR);
2185 napi_enable(&hw->napi);
2190 gma_write16(hw, port, GM_GP_CTRL, ctl);
2192 netif_wake_queue(dev);
2198 /* For small just reuse existing skb for next receive */
2199 static struct sk_buff *receive_copy(struct sky2_port *sky2,
2200 const struct rx_ring_info *re,
2203 struct sk_buff *skb;
2205 skb = netdev_alloc_skb(sky2->netdev, length + 2);
2207 skb_reserve(skb, 2);
2208 pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->data_addr,
2209 length, PCI_DMA_FROMDEVICE);
2210 skb_copy_from_linear_data(re->skb, skb->data, length);
2211 skb->ip_summed = re->skb->ip_summed;
2212 skb->csum = re->skb->csum;
2213 pci_dma_sync_single_for_device(sky2->hw->pdev, re->data_addr,
2214 length, PCI_DMA_FROMDEVICE);
2215 re->skb->ip_summed = CHECKSUM_NONE;
2216 skb_put(skb, length);
2221 /* Adjust length of skb with fragments to match received data */
2222 static void skb_put_frags(struct sk_buff *skb, unsigned int hdr_space,
2223 unsigned int length)
2228 /* put header into skb */
2229 size = min(length, hdr_space);
2234 num_frags = skb_shinfo(skb)->nr_frags;
2235 for (i = 0; i < num_frags; i++) {
2236 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2239 /* don't need this page */
2240 __free_page(frag->page);
2241 --skb_shinfo(skb)->nr_frags;
2243 size = min(length, (unsigned) PAGE_SIZE);
2246 skb->data_len += size;
2247 skb->truesize += size;
2254 /* Normal packet - take skb from ring element and put in a new one */
2255 static struct sk_buff *receive_new(struct sky2_port *sky2,
2256 struct rx_ring_info *re,
2257 unsigned int length)
2259 struct sk_buff *skb, *nskb;
2260 unsigned hdr_space = sky2->rx_data_size;
2262 /* Don't be tricky about reusing pages (yet) */
2263 nskb = sky2_rx_alloc(sky2);
2264 if (unlikely(!nskb))
2268 sky2_rx_unmap_skb(sky2->hw->pdev, re);
2270 prefetch(skb->data);
2272 if (sky2_rx_map_skb(sky2->hw->pdev, re, hdr_space)) {
2273 dev_kfree_skb(nskb);
2278 if (skb_shinfo(skb)->nr_frags)
2279 skb_put_frags(skb, hdr_space, length);
2281 skb_put(skb, length);
2286 * Receive one packet.
2287 * For larger packets, get new buffer.
2289 static struct sk_buff *sky2_receive(struct net_device *dev,
2290 u16 length, u32 status)
2292 struct sky2_port *sky2 = netdev_priv(dev);
2293 struct rx_ring_info *re = sky2->rx_ring + sky2->rx_next;
2294 struct sk_buff *skb = NULL;
2295 u16 count = (status & GMR_FS_LEN) >> 16;
2297 #ifdef SKY2_VLAN_TAG_USED
2298 /* Account for vlan tag */
2299 if (sky2->vlgrp && (status & GMR_FS_VLAN))
2303 if (unlikely(netif_msg_rx_status(sky2)))
2304 printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n",
2305 dev->name, sky2->rx_next, status, length);
2307 sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending;
2308 prefetch(sky2->rx_ring + sky2->rx_next);
2310 /* This chip has hardware problems that generates bogus status.
2311 * So do only marginal checking and expect higher level protocols
2312 * to handle crap frames.
2314 if (sky2->hw->chip_id == CHIP_ID_YUKON_FE_P &&
2315 sky2->hw->chip_rev == CHIP_REV_YU_FE2_A0 &&
2319 if (status & GMR_FS_ANY_ERR)
2322 if (!(status & GMR_FS_RX_OK))
2325 /* if length reported by DMA does not match PHY, packet was truncated */
2326 if (length != count)
2330 if (length < copybreak)
2331 skb = receive_copy(sky2, re, length);
2333 skb = receive_new(sky2, re, length);
2335 sky2_rx_submit(sky2, re);
2340 /* Truncation of overlength packets
2341 causes PHY length to not match MAC length */
2342 ++dev->stats.rx_length_errors;
2343 if (netif_msg_rx_err(sky2) && net_ratelimit())
2344 pr_info(PFX "%s: rx length error: status %#x length %d\n",
2345 dev->name, status, length);
2349 ++dev->stats.rx_errors;
2350 if (status & GMR_FS_RX_FF_OV) {
2351 dev->stats.rx_over_errors++;
2355 if (netif_msg_rx_err(sky2) && net_ratelimit())
2356 printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n",
2357 dev->name, status, length);
2359 if (status & (GMR_FS_LONG_ERR | GMR_FS_UN_SIZE))
2360 dev->stats.rx_length_errors++;
2361 if (status & GMR_FS_FRAGMENT)
2362 dev->stats.rx_frame_errors++;
2363 if (status & GMR_FS_CRC_ERR)
2364 dev->stats.rx_crc_errors++;
2369 /* Transmit complete */
2370 static inline void sky2_tx_done(struct net_device *dev, u16 last)
2372 struct sky2_port *sky2 = netdev_priv(dev);
2374 if (netif_running(dev))
2375 sky2_tx_complete(sky2, last);
2378 static inline void sky2_skb_rx(const struct sky2_port *sky2,
2379 u32 status, struct sk_buff *skb)
2381 #ifdef SKY2_VLAN_TAG_USED
2382 u16 vlan_tag = be16_to_cpu(sky2->rx_tag);
2383 if (sky2->vlgrp && (status & GMR_FS_VLAN)) {
2384 if (skb->ip_summed == CHECKSUM_NONE)
2385 vlan_hwaccel_receive_skb(skb, sky2->vlgrp, vlan_tag);
2387 vlan_gro_receive(&sky2->hw->napi, sky2->vlgrp,
2392 if (skb->ip_summed == CHECKSUM_NONE)
2393 netif_receive_skb(skb);
2395 napi_gro_receive(&sky2->hw->napi, skb);
2398 static inline void sky2_rx_done(struct sky2_hw *hw, unsigned port,
2399 unsigned packets, unsigned bytes)
2402 struct net_device *dev = hw->dev[port];
2404 dev->stats.rx_packets += packets;
2405 dev->stats.rx_bytes += bytes;
2406 dev->last_rx = jiffies;
2407 sky2_rx_update(netdev_priv(dev), rxqaddr[port]);
2411 /* Process status response ring */
2412 static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx)
2415 unsigned int total_bytes[2] = { 0 };
2416 unsigned int total_packets[2] = { 0 };
2420 struct sky2_port *sky2;
2421 struct sky2_status_le *le = hw->st_le + hw->st_idx;
2423 struct net_device *dev;
2424 struct sk_buff *skb;
2427 u8 opcode = le->opcode;
2429 if (!(opcode & HW_OWNER))
2432 hw->st_idx = RING_NEXT(hw->st_idx, STATUS_RING_SIZE);
2434 port = le->css & CSS_LINK_BIT;
2435 dev = hw->dev[port];
2436 sky2 = netdev_priv(dev);
2437 length = le16_to_cpu(le->length);
2438 status = le32_to_cpu(le->status);
2441 switch (opcode & ~HW_OWNER) {
2443 total_packets[port]++;
2444 total_bytes[port] += length;
2445 skb = sky2_receive(dev, length, status);
2446 if (unlikely(!skb)) {
2447 dev->stats.rx_dropped++;
2451 /* This chip reports checksum status differently */
2452 if (hw->flags & SKY2_HW_NEW_LE) {
2453 if ((sky2->flags & SKY2_FLAG_RX_CHECKSUM) &&
2454 (le->css & (CSS_ISIPV4 | CSS_ISIPV6)) &&
2455 (le->css & CSS_TCPUDPCSOK))
2456 skb->ip_summed = CHECKSUM_UNNECESSARY;
2458 skb->ip_summed = CHECKSUM_NONE;
2461 skb->protocol = eth_type_trans(skb, dev);
2463 sky2_skb_rx(sky2, status, skb);
2465 /* Stop after net poll weight */
2466 if (++work_done >= to_do)
2470 #ifdef SKY2_VLAN_TAG_USED
2472 sky2->rx_tag = length;
2476 sky2->rx_tag = length;
2480 if (!(sky2->flags & SKY2_FLAG_RX_CHECKSUM))
2483 /* If this happens then driver assuming wrong format */
2484 if (unlikely(hw->flags & SKY2_HW_NEW_LE)) {
2485 if (net_ratelimit())
2486 printk(KERN_NOTICE "%s: unexpected"
2487 " checksum status\n",
2492 /* Both checksum counters are programmed to start at
2493 * the same offset, so unless there is a problem they
2494 * should match. This failure is an early indication that
2495 * hardware receive checksumming won't work.
2497 if (likely(status >> 16 == (status & 0xffff))) {
2498 skb = sky2->rx_ring[sky2->rx_next].skb;
2499 skb->ip_summed = CHECKSUM_COMPLETE;
2500 skb->csum = le16_to_cpu(status);
2502 printk(KERN_NOTICE PFX "%s: hardware receive "
2503 "checksum problem (status = %#x)\n",
2505 sky2->flags &= ~SKY2_FLAG_RX_CHECKSUM;
2507 sky2_write32(sky2->hw,
2508 Q_ADDR(rxqaddr[port], Q_CSR),
2514 /* TX index reports status for both ports */
2515 BUILD_BUG_ON(TX_RING_SIZE > 0x1000);
2516 sky2_tx_done(hw->dev[0], status & 0xfff);
2518 sky2_tx_done(hw->dev[1],
2519 ((status >> 24) & 0xff)
2520 | (u16)(length & 0xf) << 8);
2524 if (net_ratelimit())
2525 printk(KERN_WARNING PFX
2526 "unknown status opcode 0x%x\n", opcode);
2528 } while (hw->st_idx != idx);
2530 /* Fully processed status ring so clear irq */
2531 sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
2534 sky2_rx_done(hw, 0, total_packets[0], total_bytes[0]);
2535 sky2_rx_done(hw, 1, total_packets[1], total_bytes[1]);
2540 static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status)
2542 struct net_device *dev = hw->dev[port];
2544 if (net_ratelimit())
2545 printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n",
2548 if (status & Y2_IS_PAR_RD1) {
2549 if (net_ratelimit())
2550 printk(KERN_ERR PFX "%s: ram data read parity error\n",
2553 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR);
2556 if (status & Y2_IS_PAR_WR1) {
2557 if (net_ratelimit())
2558 printk(KERN_ERR PFX "%s: ram data write parity error\n",
2561 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR);
2564 if (status & Y2_IS_PAR_MAC1) {
2565 if (net_ratelimit())
2566 printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name);
2567 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE);
2570 if (status & Y2_IS_PAR_RX1) {
2571 if (net_ratelimit())
2572 printk(KERN_ERR PFX "%s: RX parity error\n", dev->name);
2573 sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR);
2576 if (status & Y2_IS_TCP_TXA1) {
2577 if (net_ratelimit())
2578 printk(KERN_ERR PFX "%s: TCP segmentation error\n",
2580 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP);
2584 static void sky2_hw_intr(struct sky2_hw *hw)
2586 struct pci_dev *pdev = hw->pdev;
2587 u32 status = sky2_read32(hw, B0_HWE_ISRC);
2588 u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK);
2592 if (status & Y2_IS_TIST_OV)
2593 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
2595 if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) {
2598 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2599 pci_err = sky2_pci_read16(hw, PCI_STATUS);
2600 if (net_ratelimit())
2601 dev_err(&pdev->dev, "PCI hardware error (0x%x)\n",
2604 sky2_pci_write16(hw, PCI_STATUS,
2605 pci_err | PCI_STATUS_ERROR_BITS);
2606 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2609 if (status & Y2_IS_PCI_EXP) {
2610 /* PCI-Express uncorrectable Error occurred */
2613 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2614 err = sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
2615 sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
2617 if (net_ratelimit())
2618 dev_err(&pdev->dev, "PCI Express error (0x%x)\n", err);
2620 sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
2621 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2624 if (status & Y2_HWE_L1_MASK)
2625 sky2_hw_error(hw, 0, status);
2627 if (status & Y2_HWE_L1_MASK)
2628 sky2_hw_error(hw, 1, status);
2631 static void sky2_mac_intr(struct sky2_hw *hw, unsigned port)
2633 struct net_device *dev = hw->dev[port];
2634 struct sky2_port *sky2 = netdev_priv(dev);
2635 u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
2637 if (netif_msg_intr(sky2))
2638 printk(KERN_INFO PFX "%s: mac interrupt status 0x%x\n",
2641 if (status & GM_IS_RX_CO_OV)
2642 gma_read16(hw, port, GM_RX_IRQ_SRC);
2644 if (status & GM_IS_TX_CO_OV)
2645 gma_read16(hw, port, GM_TX_IRQ_SRC);
2647 if (status & GM_IS_RX_FF_OR) {
2648 ++dev->stats.rx_fifo_errors;
2649 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
2652 if (status & GM_IS_TX_FF_UR) {
2653 ++dev->stats.tx_fifo_errors;
2654 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
2658 /* This should never happen it is a bug. */
2659 static void sky2_le_error(struct sky2_hw *hw, unsigned port,
2660 u16 q, unsigned ring_size)
2662 struct net_device *dev = hw->dev[port];
2663 struct sky2_port *sky2 = netdev_priv(dev);
2665 const u64 *le = (q == Q_R1 || q == Q_R2)
2666 ? (u64 *) sky2->rx_le : (u64 *) sky2->tx_le;
2668 idx = sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_GET_IDX));
2669 printk(KERN_ERR PFX "%s: descriptor error q=%#x get=%u [%llx] put=%u\n",
2670 dev->name, (unsigned) q, idx, (unsigned long long) le[idx],
2671 (unsigned) sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX)));
2673 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_IRQ_CHK);
2676 static int sky2_rx_hung(struct net_device *dev)
2678 struct sky2_port *sky2 = netdev_priv(dev);
2679 struct sky2_hw *hw = sky2->hw;
2680 unsigned port = sky2->port;
2681 unsigned rxq = rxqaddr[port];
2682 u32 mac_rp = sky2_read32(hw, SK_REG(port, RX_GMF_RP));
2683 u8 mac_lev = sky2_read8(hw, SK_REG(port, RX_GMF_RLEV));
2684 u8 fifo_rp = sky2_read8(hw, Q_ADDR(rxq, Q_RP));
2685 u8 fifo_lev = sky2_read8(hw, Q_ADDR(rxq, Q_RL));
2687 /* If idle and MAC or PCI is stuck */
2688 if (sky2->check.last == dev->last_rx &&
2689 ((mac_rp == sky2->check.mac_rp &&
2690 mac_lev != 0 && mac_lev >= sky2->check.mac_lev) ||
2691 /* Check if the PCI RX hang */
2692 (fifo_rp == sky2->check.fifo_rp &&
2693 fifo_lev != 0 && fifo_lev >= sky2->check.fifo_lev))) {
2694 printk(KERN_DEBUG PFX "%s: hung mac %d:%d fifo %d (%d:%d)\n",
2695 dev->name, mac_lev, mac_rp, fifo_lev, fifo_rp,
2696 sky2_read8(hw, Q_ADDR(rxq, Q_WP)));
2699 sky2->check.last = dev->last_rx;
2700 sky2->check.mac_rp = mac_rp;
2701 sky2->check.mac_lev = mac_lev;
2702 sky2->check.fifo_rp = fifo_rp;
2703 sky2->check.fifo_lev = fifo_lev;
2708 static void sky2_watchdog(unsigned long arg)
2710 struct sky2_hw *hw = (struct sky2_hw *) arg;
2712 /* Check for lost IRQ once a second */
2713 if (sky2_read32(hw, B0_ISRC)) {
2714 napi_schedule(&hw->napi);
2718 for (i = 0; i < hw->ports; i++) {
2719 struct net_device *dev = hw->dev[i];
2720 if (!netif_running(dev))
2724 /* For chips with Rx FIFO, check if stuck */
2725 if ((hw->flags & SKY2_HW_RAM_BUFFER) &&
2726 sky2_rx_hung(dev)) {
2727 pr_info(PFX "%s: receiver hang detected\n",
2729 schedule_work(&hw->restart_work);
2738 mod_timer(&hw->watchdog_timer, round_jiffies(jiffies + HZ));
2741 /* Hardware/software error handling */
2742 static void sky2_err_intr(struct sky2_hw *hw, u32 status)
2744 if (net_ratelimit())
2745 dev_warn(&hw->pdev->dev, "error interrupt status=%#x\n", status);
2747 if (status & Y2_IS_HW_ERR)
2750 if (status & Y2_IS_IRQ_MAC1)
2751 sky2_mac_intr(hw, 0);
2753 if (status & Y2_IS_IRQ_MAC2)
2754 sky2_mac_intr(hw, 1);
2756 if (status & Y2_IS_CHK_RX1)
2757 sky2_le_error(hw, 0, Q_R1, RX_LE_SIZE);
2759 if (status & Y2_IS_CHK_RX2)
2760 sky2_le_error(hw, 1, Q_R2, RX_LE_SIZE);
2762 if (status & Y2_IS_CHK_TXA1)
2763 sky2_le_error(hw, 0, Q_XA1, TX_RING_SIZE);
2765 if (status & Y2_IS_CHK_TXA2)
2766 sky2_le_error(hw, 1, Q_XA2, TX_RING_SIZE);
2769 static int sky2_poll(struct napi_struct *napi, int work_limit)
2771 struct sky2_hw *hw = container_of(napi, struct sky2_hw, napi);
2772 u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
2776 if (unlikely(status & Y2_IS_ERROR))
2777 sky2_err_intr(hw, status);
2779 if (status & Y2_IS_IRQ_PHY1)
2780 sky2_phy_intr(hw, 0);
2782 if (status & Y2_IS_IRQ_PHY2)
2783 sky2_phy_intr(hw, 1);
2785 while ((idx = sky2_read16(hw, STAT_PUT_IDX)) != hw->st_idx) {
2786 work_done += sky2_status_intr(hw, work_limit - work_done, idx);
2788 if (work_done >= work_limit)
2792 napi_complete(napi);
2793 sky2_read32(hw, B0_Y2_SP_LISR);
2799 static irqreturn_t sky2_intr(int irq, void *dev_id)
2801 struct sky2_hw *hw = dev_id;
2804 /* Reading this mask interrupts as side effect */
2805 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
2806 if (status == 0 || status == ~0)
2809 prefetch(&hw->st_le[hw->st_idx]);
2811 napi_schedule(&hw->napi);
2816 #ifdef CONFIG_NET_POLL_CONTROLLER
2817 static void sky2_netpoll(struct net_device *dev)
2819 struct sky2_port *sky2 = netdev_priv(dev);
2821 napi_schedule(&sky2->hw->napi);
2825 /* Chip internal frequency for clock calculations */
2826 static u32 sky2_mhz(const struct sky2_hw *hw)
2828 switch (hw->chip_id) {
2829 case CHIP_ID_YUKON_EC:
2830 case CHIP_ID_YUKON_EC_U:
2831 case CHIP_ID_YUKON_EX:
2832 case CHIP_ID_YUKON_SUPR:
2833 case CHIP_ID_YUKON_UL_2:
2836 case CHIP_ID_YUKON_FE:
2839 case CHIP_ID_YUKON_FE_P:
2842 case CHIP_ID_YUKON_XL:
2850 static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us)
2852 return sky2_mhz(hw) * us;
2855 static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk)
2857 return clk / sky2_mhz(hw);
2861 static int __devinit sky2_init(struct sky2_hw *hw)
2865 /* Enable all clocks and check for bad PCI access */
2866 sky2_pci_write32(hw, PCI_DEV_REG3, 0);
2868 sky2_write8(hw, B0_CTST, CS_RST_CLR);
2870 hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
2871 hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
2873 switch(hw->chip_id) {
2874 case CHIP_ID_YUKON_XL:
2875 hw->flags = SKY2_HW_GIGABIT | SKY2_HW_NEWER_PHY;
2878 case CHIP_ID_YUKON_EC_U:
2879 hw->flags = SKY2_HW_GIGABIT
2881 | SKY2_HW_ADV_POWER_CTL;
2884 case CHIP_ID_YUKON_EX:
2885 hw->flags = SKY2_HW_GIGABIT
2888 | SKY2_HW_ADV_POWER_CTL;
2890 /* New transmit checksum */
2891 if (hw->chip_rev != CHIP_REV_YU_EX_B0)
2892 hw->flags |= SKY2_HW_AUTO_TX_SUM;
2895 case CHIP_ID_YUKON_EC:
2896 /* This rev is really old, and requires untested workarounds */
2897 if (hw->chip_rev == CHIP_REV_YU_EC_A1) {
2898 dev_err(&hw->pdev->dev, "unsupported revision Yukon-EC rev A1\n");
2901 hw->flags = SKY2_HW_GIGABIT;
2904 case CHIP_ID_YUKON_FE:
2907 case CHIP_ID_YUKON_FE_P:
2908 hw->flags = SKY2_HW_NEWER_PHY
2910 | SKY2_HW_AUTO_TX_SUM
2911 | SKY2_HW_ADV_POWER_CTL;
2914 case CHIP_ID_YUKON_SUPR:
2915 hw->flags = SKY2_HW_GIGABIT
2918 | SKY2_HW_AUTO_TX_SUM
2919 | SKY2_HW_ADV_POWER_CTL;
2922 case CHIP_ID_YUKON_UL_2:
2923 hw->flags = SKY2_HW_GIGABIT
2924 | SKY2_HW_ADV_POWER_CTL;
2928 dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
2933 hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
2934 if (hw->pmd_type == 'L' || hw->pmd_type == 'S' || hw->pmd_type == 'P')
2935 hw->flags |= SKY2_HW_FIBRE_PHY;
2938 t8 = sky2_read8(hw, B2_Y2_HW_RES);
2939 if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
2940 if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC))
2947 static void sky2_reset(struct sky2_hw *hw)
2949 struct pci_dev *pdev = hw->pdev;
2952 u32 hwe_mask = Y2_HWE_ALL_MASK;
2955 if (hw->chip_id == CHIP_ID_YUKON_EX) {
2956 status = sky2_read16(hw, HCU_CCSR);
2957 status &= ~(HCU_CCSR_AHB_RST | HCU_CCSR_CPU_RST_MODE |
2958 HCU_CCSR_UC_STATE_MSK);
2959 sky2_write16(hw, HCU_CCSR, status);
2961 sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
2962 sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE);
2965 sky2_write8(hw, B0_CTST, CS_RST_SET);
2966 sky2_write8(hw, B0_CTST, CS_RST_CLR);
2968 /* allow writes to PCI config */
2969 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2971 /* clear PCI errors, if any */
2972 status = sky2_pci_read16(hw, PCI_STATUS);
2973 status |= PCI_STATUS_ERROR_BITS;
2974 sky2_pci_write16(hw, PCI_STATUS, status);
2976 sky2_write8(hw, B0_CTST, CS_MRST_CLR);
2978 cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
2980 sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
2983 /* If error bit is stuck on ignore it */
2984 if (sky2_read32(hw, B0_HWE_ISRC) & Y2_IS_PCI_EXP)
2985 dev_info(&pdev->dev, "ignoring stuck error report bit\n");
2987 hwe_mask |= Y2_IS_PCI_EXP;
2991 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2993 for (i = 0; i < hw->ports; i++) {
2994 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
2995 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
2997 if (hw->chip_id == CHIP_ID_YUKON_EX ||
2998 hw->chip_id == CHIP_ID_YUKON_SUPR)
2999 sky2_write16(hw, SK_REG(i, GMAC_CTRL),
3000 GMC_BYP_MACSECRX_ON | GMC_BYP_MACSECTX_ON
3004 /* Clear I2C IRQ noise */
3005 sky2_write32(hw, B2_I2C_IRQ, 1);
3007 /* turn off hardware timer (unused) */
3008 sky2_write8(hw, B2_TI_CTRL, TIM_STOP);
3009 sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
3011 sky2_write8(hw, B0_Y2LED, LED_STAT_ON);
3013 /* Turn off descriptor polling */
3014 sky2_write32(hw, B28_DPT_CTRL, DPT_STOP);
3016 /* Turn off receive timestamp */
3017 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP);
3018 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
3020 /* enable the Tx Arbiters */
3021 for (i = 0; i < hw->ports; i++)
3022 sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
3024 /* Initialize ram interface */
3025 for (i = 0; i < hw->ports; i++) {
3026 sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR);
3028 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53);
3029 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53);
3030 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53);
3031 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53);
3032 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53);
3033 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53);
3034 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53);
3035 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53);
3036 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53);
3037 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53);
3038 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53);
3039 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53);
3042 sky2_write32(hw, B0_HWE_IMSK, hwe_mask);
3044 for (i = 0; i < hw->ports; i++)
3045 sky2_gmac_reset(hw, i);
3047 memset(hw->st_le, 0, STATUS_LE_BYTES);
3050 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET);
3051 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR);
3053 sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma);
3054 sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32);
3056 /* Set the list last index */
3057 sky2_write16(hw, STAT_LAST_IDX, STATUS_RING_SIZE - 1);
3059 sky2_write16(hw, STAT_TX_IDX_TH, 10);
3060 sky2_write8(hw, STAT_FIFO_WM, 16);
3062 /* set Status-FIFO ISR watermark */
3063 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0)
3064 sky2_write8(hw, STAT_FIFO_ISR_WM, 4);
3066 sky2_write8(hw, STAT_FIFO_ISR_WM, 16);
3068 sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 1000));
3069 sky2_write32(hw, STAT_ISR_TIMER_INI, sky2_us2clk(hw, 20));
3070 sky2_write32(hw, STAT_LEV_TIMER_INI, sky2_us2clk(hw, 100));
3072 /* enable status unit */
3073 sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON);
3075 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
3076 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
3077 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
3080 /* Take device down (offline).
3081 * Equivalent to doing dev_stop() but this does not
3082 * inform upper layers of the transistion.
3084 static void sky2_detach(struct net_device *dev)
3086 if (netif_running(dev)) {
3087 netif_device_detach(dev); /* stop txq */
3092 /* Bring device back after doing sky2_detach */
3093 static int sky2_reattach(struct net_device *dev)
3097 if (netif_running(dev)) {
3100 printk(KERN_INFO PFX "%s: could not restart %d\n",
3104 netif_device_attach(dev);
3105 sky2_set_multicast(dev);
3112 static void sky2_restart(struct work_struct *work)
3114 struct sky2_hw *hw = container_of(work, struct sky2_hw, restart_work);
3118 for (i = 0; i < hw->ports; i++)
3119 sky2_detach(hw->dev[i]);
3121 napi_disable(&hw->napi);
3122 sky2_write32(hw, B0_IMSK, 0);
3124 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
3125 napi_enable(&hw->napi);
3127 for (i = 0; i < hw->ports; i++)
3128 sky2_reattach(hw->dev[i]);
3133 static inline u8 sky2_wol_supported(const struct sky2_hw *hw)
3135 return sky2_is_copper(hw) ? (WAKE_PHY | WAKE_MAGIC) : 0;
3138 static void sky2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3140 const struct sky2_port *sky2 = netdev_priv(dev);
3142 wol->supported = sky2_wol_supported(sky2->hw);
3143 wol->wolopts = sky2->wol;
3146 static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3148 struct sky2_port *sky2 = netdev_priv(dev);
3149 struct sky2_hw *hw = sky2->hw;
3151 if ((wol->wolopts & ~sky2_wol_supported(sky2->hw))
3152 || !device_can_wakeup(&hw->pdev->dev))
3155 sky2->wol = wol->wolopts;
3157 if (hw->chip_id == CHIP_ID_YUKON_EC_U ||
3158 hw->chip_id == CHIP_ID_YUKON_EX ||
3159 hw->chip_id == CHIP_ID_YUKON_FE_P)
3160 sky2_write32(hw, B0_CTST, sky2->wol
3161 ? Y2_HW_WOL_ON : Y2_HW_WOL_OFF);
3163 device_set_wakeup_enable(&hw->pdev->dev, sky2->wol);
3165 if (!netif_running(dev))
3166 sky2_wol_init(sky2);
3170 static u32 sky2_supported_modes(const struct sky2_hw *hw)
3172 if (sky2_is_copper(hw)) {
3173 u32 modes = SUPPORTED_10baseT_Half
3174 | SUPPORTED_10baseT_Full
3175 | SUPPORTED_100baseT_Half
3176 | SUPPORTED_100baseT_Full
3177 | SUPPORTED_Autoneg | SUPPORTED_TP;
3179 if (hw->flags & SKY2_HW_GIGABIT)
3180 modes |= SUPPORTED_1000baseT_Half
3181 | SUPPORTED_1000baseT_Full;
3184 return SUPPORTED_1000baseT_Half
3185 | SUPPORTED_1000baseT_Full
3190 static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
3192 struct sky2_port *sky2 = netdev_priv(dev);
3193 struct sky2_hw *hw = sky2->hw;
3195 ecmd->transceiver = XCVR_INTERNAL;
3196 ecmd->supported = sky2_supported_modes(hw);
3197 ecmd->phy_address = PHY_ADDR_MARV;
3198 if (sky2_is_copper(hw)) {
3199 ecmd->port = PORT_TP;
3200 ecmd->speed = sky2->speed;
3202 ecmd->speed = SPEED_1000;
3203 ecmd->port = PORT_FIBRE;
3206 ecmd->advertising = sky2->advertising;
3207 ecmd->autoneg = (sky2->flags & SKY2_FLAG_AUTO_SPEED)
3208 ? AUTONEG_ENABLE : AUTONEG_DISABLE;
3209 ecmd->duplex = sky2->duplex;
3213 static int sky2_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
3215 struct sky2_port *sky2 = netdev_priv(dev);
3216 const struct sky2_hw *hw = sky2->hw;
3217 u32 supported = sky2_supported_modes(hw);
3219 if (ecmd->autoneg == AUTONEG_ENABLE) {
3220 sky2->flags |= SKY2_FLAG_AUTO_SPEED;
3221 ecmd->advertising = supported;
3227 switch (ecmd->speed) {
3229 if (ecmd->duplex == DUPLEX_FULL)
3230 setting = SUPPORTED_1000baseT_Full;
3231 else if (ecmd->duplex == DUPLEX_HALF)
3232 setting = SUPPORTED_1000baseT_Half;
3237 if (ecmd->duplex == DUPLEX_FULL)
3238 setting = SUPPORTED_100baseT_Full;
3239 else if (ecmd->duplex == DUPLEX_HALF)
3240 setting = SUPPORTED_100baseT_Half;
3246 if (ecmd->duplex == DUPLEX_FULL)
3247 setting = SUPPORTED_10baseT_Full;
3248 else if (ecmd->duplex == DUPLEX_HALF)
3249 setting = SUPPORTED_10baseT_Half;
3257 if ((setting & supported) == 0)
3260 sky2->speed = ecmd->speed;
3261 sky2->duplex = ecmd->duplex;
3262 sky2->flags &= ~SKY2_FLAG_AUTO_SPEED;
3265 sky2->advertising = ecmd->advertising;
3267 if (netif_running(dev)) {
3268 sky2_phy_reinit(sky2);
3269 sky2_set_multicast(dev);
3275 static void sky2_get_drvinfo(struct net_device *dev,
3276 struct ethtool_drvinfo *info)
3278 struct sky2_port *sky2 = netdev_priv(dev);
3280 strcpy(info->driver, DRV_NAME);
3281 strcpy(info->version, DRV_VERSION);
3282 strcpy(info->fw_version, "N/A");
3283 strcpy(info->bus_info, pci_name(sky2->hw->pdev));
3286 static const struct sky2_stat {
3287 char name[ETH_GSTRING_LEN];
3290 { "tx_bytes", GM_TXO_OK_HI },
3291 { "rx_bytes", GM_RXO_OK_HI },
3292 { "tx_broadcast", GM_TXF_BC_OK },
3293 { "rx_broadcast", GM_RXF_BC_OK },
3294 { "tx_multicast", GM_TXF_MC_OK },
3295 { "rx_multicast", GM_RXF_MC_OK },
3296 { "tx_unicast", GM_TXF_UC_OK },
3297 { "rx_unicast", GM_RXF_UC_OK },
3298 { "tx_mac_pause", GM_TXF_MPAUSE },
3299 { "rx_mac_pause", GM_RXF_MPAUSE },
3300 { "collisions", GM_TXF_COL },
3301 { "late_collision",GM_TXF_LAT_COL },
3302 { "aborted", GM_TXF_ABO_COL },
3303 { "single_collisions", GM_TXF_SNG_COL },
3304 { "multi_collisions", GM_TXF_MUL_COL },
3306 { "rx_short", GM_RXF_SHT },
3307 { "rx_runt", GM_RXE_FRAG },
3308 { "rx_64_byte_packets", GM_RXF_64B },
3309 { "rx_65_to_127_byte_packets", GM_RXF_127B },
3310 { "rx_128_to_255_byte_packets", GM_RXF_255B },
3311 { "rx_256_to_511_byte_packets", GM_RXF_511B },
3312 { "rx_512_to_1023_byte_packets", GM_RXF_1023B },
3313 { "rx_1024_to_1518_byte_packets", GM_RXF_1518B },
3314 { "rx_1518_to_max_byte_packets", GM_RXF_MAX_SZ },
3315 { "rx_too_long", GM_RXF_LNG_ERR },
3316 { "rx_fifo_overflow", GM_RXE_FIFO_OV },
3317 { "rx_jabber", GM_RXF_JAB_PKT },
3318 { "rx_fcs_error", GM_RXF_FCS_ERR },
3320 { "tx_64_byte_packets", GM_TXF_64B },
3321 { "tx_65_to_127_byte_packets", GM_TXF_127B },
3322 { "tx_128_to_255_byte_packets", GM_TXF_255B },
3323 { "tx_256_to_511_byte_packets", GM_TXF_511B },
3324 { "tx_512_to_1023_byte_packets", GM_TXF_1023B },
3325 { "tx_1024_to_1518_byte_packets", GM_TXF_1518B },
3326 { "tx_1519_to_max_byte_packets", GM_TXF_MAX_SZ },
3327 { "tx_fifo_underrun", GM_TXE_FIFO_UR },
3330 static u32 sky2_get_rx_csum(struct net_device *dev)
3332 struct sky2_port *sky2 = netdev_priv(dev);
3334 return !!(sky2->flags & SKY2_FLAG_RX_CHECKSUM);
3337 static int sky2_set_rx_csum(struct net_device *dev, u32 data)
3339 struct sky2_port *sky2 = netdev_priv(dev);
3342 sky2->flags |= SKY2_FLAG_RX_CHECKSUM;
3344 sky2->flags &= ~SKY2_FLAG_RX_CHECKSUM;
3346 sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR),
3347 data ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
3352 static u32 sky2_get_msglevel(struct net_device *netdev)
3354 struct sky2_port *sky2 = netdev_priv(netdev);
3355 return sky2->msg_enable;
3358 static int sky2_nway_reset(struct net_device *dev)
3360 struct sky2_port *sky2 = netdev_priv(dev);
3362 if (!netif_running(dev) || !(sky2->flags & SKY2_FLAG_AUTO_SPEED))
3365 sky2_phy_reinit(sky2);
3366 sky2_set_multicast(dev);
3371 static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count)
3373 struct sky2_hw *hw = sky2->hw;
3374 unsigned port = sky2->port;
3377 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
3378 | (u64) gma_read32(hw, port, GM_TXO_OK_LO);
3379 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
3380 | (u64) gma_read32(hw, port, GM_RXO_OK_LO);
3382 for (i = 2; i < count; i++)
3383 data[i] = (u64) gma_read32(hw, port, sky2_stats[i].offset);
3386 static void sky2_set_msglevel(struct net_device *netdev, u32 value)
3388 struct sky2_port *sky2 = netdev_priv(netdev);
3389 sky2->msg_enable = value;
3392 static int sky2_get_sset_count(struct net_device *dev, int sset)
3396 return ARRAY_SIZE(sky2_stats);
3402 static void sky2_get_ethtool_stats(struct net_device *dev,
3403 struct ethtool_stats *stats, u64 * data)
3405 struct sky2_port *sky2 = netdev_priv(dev);
3407 sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats));
3410 static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data)
3414 switch (stringset) {
3416 for (i = 0; i < ARRAY_SIZE(sky2_stats); i++)
3417 memcpy(data + i * ETH_GSTRING_LEN,
3418 sky2_stats[i].name, ETH_GSTRING_LEN);
3423 static int sky2_set_mac_address(struct net_device *dev, void *p)
3425 struct sky2_port *sky2 = netdev_priv(dev);
3426 struct sky2_hw *hw = sky2->hw;
3427 unsigned port = sky2->port;
3428 const struct sockaddr *addr = p;
3430 if (!is_valid_ether_addr(addr->sa_data))
3431 return -EADDRNOTAVAIL;
3433 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
3434 memcpy_toio(hw->regs + B2_MAC_1 + port * 8,
3435 dev->dev_addr, ETH_ALEN);
3436 memcpy_toio(hw->regs + B2_MAC_2 + port * 8,
3437 dev->dev_addr, ETH_ALEN);
3439 /* virtual address for data */
3440 gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
3442 /* physical address: used for pause frames */
3443 gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
3448 static void inline sky2_add_filter(u8 filter[8], const u8 *addr)
3452 bit = ether_crc(ETH_ALEN, addr) & 63;
3453 filter[bit >> 3] |= 1 << (bit & 7);
3456 static void sky2_set_multicast(struct net_device *dev)
3458 struct sky2_port *sky2 = netdev_priv(dev);
3459 struct sky2_hw *hw = sky2->hw;
3460 unsigned port = sky2->port;
3461 struct dev_mc_list *list = dev->mc_list;
3465 static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 };
3467 rx_pause = (sky2->flow_status == FC_RX || sky2->flow_status == FC_BOTH);
3468 memset(filter, 0, sizeof(filter));
3470 reg = gma_read16(hw, port, GM_RX_CTRL);
3471 reg |= GM_RXCR_UCF_ENA;
3473 if (dev->flags & IFF_PROMISC) /* promiscuous */
3474 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
3475 else if (dev->flags & IFF_ALLMULTI)
3476 memset(filter, 0xff, sizeof(filter));
3477 else if (dev->mc_count == 0 && !rx_pause)
3478 reg &= ~GM_RXCR_MCF_ENA;
3481 reg |= GM_RXCR_MCF_ENA;
3484 sky2_add_filter(filter, pause_mc_addr);
3486 for (i = 0; list && i < dev->mc_count; i++, list = list->next)
3487 sky2_add_filter(filter, list->dmi_addr);
3490 gma_write16(hw, port, GM_MC_ADDR_H1,
3491 (u16) filter[0] | ((u16) filter[1] << 8));
3492 gma_write16(hw, port, GM_MC_ADDR_H2,
3493 (u16) filter[2] | ((u16) filter[3] << 8));
3494 gma_write16(hw, port, GM_MC_ADDR_H3,
3495 (u16) filter[4] | ((u16) filter[5] << 8));
3496 gma_write16(hw, port, GM_MC_ADDR_H4,
3497 (u16) filter[6] | ((u16) filter[7] << 8));
3499 gma_write16(hw, port, GM_RX_CTRL, reg);
3502 /* Can have one global because blinking is controlled by
3503 * ethtool and that is always under RTNL mutex
3505 static void sky2_led(struct sky2_port *sky2, enum led_mode mode)
3507 struct sky2_hw *hw = sky2->hw;
3508 unsigned port = sky2->port;
3510 spin_lock_bh(&sky2->phy_lock);
3511 if (hw->chip_id == CHIP_ID_YUKON_EC_U ||
3512 hw->chip_id == CHIP_ID_YUKON_EX ||
3513 hw->chip_id == CHIP_ID_YUKON_SUPR) {
3515 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
3516 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
3520 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
3521 PHY_M_LEDC_LOS_CTRL(8) |
3522 PHY_M_LEDC_INIT_CTRL(8) |
3523 PHY_M_LEDC_STA1_CTRL(8) |
3524 PHY_M_LEDC_STA0_CTRL(8));
3527 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
3528 PHY_M_LEDC_LOS_CTRL(9) |
3529 PHY_M_LEDC_INIT_CTRL(9) |
3530 PHY_M_LEDC_STA1_CTRL(9) |
3531 PHY_M_LEDC_STA0_CTRL(9));
3534 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
3535 PHY_M_LEDC_LOS_CTRL(0xa) |
3536 PHY_M_LEDC_INIT_CTRL(0xa) |
3537 PHY_M_LEDC_STA1_CTRL(0xa) |
3538 PHY_M_LEDC_STA0_CTRL(0xa));
3541 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
3542 PHY_M_LEDC_LOS_CTRL(1) |
3543 PHY_M_LEDC_INIT_CTRL(8) |
3544 PHY_M_LEDC_STA1_CTRL(7) |
3545 PHY_M_LEDC_STA0_CTRL(7));
3548 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
3550 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
3551 PHY_M_LED_MO_DUP(mode) |
3552 PHY_M_LED_MO_10(mode) |
3553 PHY_M_LED_MO_100(mode) |
3554 PHY_M_LED_MO_1000(mode) |
3555 PHY_M_LED_MO_RX(mode) |
3556 PHY_M_LED_MO_TX(mode));
3558 spin_unlock_bh(&sky2->phy_lock);
3561 /* blink LED's for finding board */
3562 static int sky2_phys_id(struct net_device *dev, u32 data)
3564 struct sky2_port *sky2 = netdev_priv(dev);
3570 for (i = 0; i < data; i++) {
3571 sky2_led(sky2, MO_LED_ON);
3572 if (msleep_interruptible(500))
3574 sky2_led(sky2, MO_LED_OFF);
3575 if (msleep_interruptible(500))
3578 sky2_led(sky2, MO_LED_NORM);
3583 static void sky2_get_pauseparam(struct net_device *dev,
3584 struct ethtool_pauseparam *ecmd)
3586 struct sky2_port *sky2 = netdev_priv(dev);
3588 switch (sky2->flow_mode) {
3590 ecmd->tx_pause = ecmd->rx_pause = 0;
3593 ecmd->tx_pause = 1, ecmd->rx_pause = 0;
3596 ecmd->tx_pause = 0, ecmd->rx_pause = 1;
3599 ecmd->tx_pause = ecmd->rx_pause = 1;
3602 ecmd->autoneg = (sky2->flags & SKY2_FLAG_AUTO_PAUSE)
3603 ? AUTONEG_ENABLE : AUTONEG_DISABLE;
3606 static int sky2_set_pauseparam(struct net_device *dev,
3607 struct ethtool_pauseparam *ecmd)
3609 struct sky2_port *sky2 = netdev_priv(dev);
3611 if (ecmd->autoneg == AUTONEG_ENABLE)
3612 sky2->flags |= SKY2_FLAG_AUTO_PAUSE;
3614 sky2->flags &= ~SKY2_FLAG_AUTO_PAUSE;
3616 sky2->flow_mode = sky2_flow(ecmd->rx_pause, ecmd->tx_pause);
3618 if (netif_running(dev))
3619 sky2_phy_reinit(sky2);
3624 static int sky2_get_coalesce(struct net_device *dev,
3625 struct ethtool_coalesce *ecmd)
3627 struct sky2_port *sky2 = netdev_priv(dev);
3628 struct sky2_hw *hw = sky2->hw;
3630 if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_STOP)
3631 ecmd->tx_coalesce_usecs = 0;
3633 u32 clks = sky2_read32(hw, STAT_TX_TIMER_INI);
3634 ecmd->tx_coalesce_usecs = sky2_clk2us(hw, clks);
3636 ecmd->tx_max_coalesced_frames = sky2_read16(hw, STAT_TX_IDX_TH);
3638 if (sky2_read8(hw, STAT_LEV_TIMER_CTRL) == TIM_STOP)
3639 ecmd->rx_coalesce_usecs = 0;
3641 u32 clks = sky2_read32(hw, STAT_LEV_TIMER_INI);
3642 ecmd->rx_coalesce_usecs = sky2_clk2us(hw, clks);
3644 ecmd->rx_max_coalesced_frames = sky2_read8(hw, STAT_FIFO_WM);
3646 if (sky2_read8(hw, STAT_ISR_TIMER_CTRL) == TIM_STOP)
3647 ecmd->rx_coalesce_usecs_irq = 0;
3649 u32 clks = sky2_read32(hw, STAT_ISR_TIMER_INI);
3650 ecmd->rx_coalesce_usecs_irq = sky2_clk2us(hw, clks);
3653 ecmd->rx_max_coalesced_frames_irq = sky2_read8(hw, STAT_FIFO_ISR_WM);
3658 /* Note: this affect both ports */
3659 static int sky2_set_coalesce(struct net_device *dev,
3660 struct ethtool_coalesce *ecmd)
3662 struct sky2_port *sky2 = netdev_priv(dev);
3663 struct sky2_hw *hw = sky2->hw;
3664 const u32 tmax = sky2_clk2us(hw, 0x0ffffff);
3666 if (ecmd->tx_coalesce_usecs > tmax ||
3667 ecmd->rx_coalesce_usecs > tmax ||
3668 ecmd->rx_coalesce_usecs_irq > tmax)
3671 if (ecmd->tx_max_coalesced_frames >= TX_RING_SIZE-1)
3673 if (ecmd->rx_max_coalesced_frames > RX_MAX_PENDING)
3675 if (ecmd->rx_max_coalesced_frames_irq >RX_MAX_PENDING)
3678 if (ecmd->tx_coalesce_usecs == 0)
3679 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
3681 sky2_write32(hw, STAT_TX_TIMER_INI,
3682 sky2_us2clk(hw, ecmd->tx_coalesce_usecs));
3683 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
3685 sky2_write16(hw, STAT_TX_IDX_TH, ecmd->tx_max_coalesced_frames);
3687 if (ecmd->rx_coalesce_usecs == 0)
3688 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_STOP);
3690 sky2_write32(hw, STAT_LEV_TIMER_INI,
3691 sky2_us2clk(hw, ecmd->rx_coalesce_usecs));
3692 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
3694 sky2_write8(hw, STAT_FIFO_WM, ecmd->rx_max_coalesced_frames);
3696 if (ecmd->rx_coalesce_usecs_irq == 0)
3697 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_STOP);
3699 sky2_write32(hw, STAT_ISR_TIMER_INI,
3700 sky2_us2clk(hw, ecmd->rx_coalesce_usecs_irq));
3701 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
3703 sky2_write8(hw, STAT_FIFO_ISR_WM, ecmd->rx_max_coalesced_frames_irq);
3707 static void sky2_get_ringparam(struct net_device *dev,
3708 struct ethtool_ringparam *ering)
3710 struct sky2_port *sky2 = netdev_priv(dev);
3712 ering->rx_max_pending = RX_MAX_PENDING;
3713 ering->rx_mini_max_pending = 0;
3714 ering->rx_jumbo_max_pending = 0;
3715 ering->tx_max_pending = TX_RING_SIZE - 1;
3717 ering->rx_pending = sky2->rx_pending;
3718 ering->rx_mini_pending = 0;
3719 ering->rx_jumbo_pending = 0;
3720 ering->tx_pending = sky2->tx_pending;
3723 static int sky2_set_ringparam(struct net_device *dev,
3724 struct ethtool_ringparam *ering)
3726 struct sky2_port *sky2 = netdev_priv(dev);
3728 if (ering->rx_pending > RX_MAX_PENDING ||
3729 ering->rx_pending < 8 ||
3730 ering->tx_pending < MAX_SKB_TX_LE ||
3731 ering->tx_pending > TX_RING_SIZE - 1)
3736 sky2->rx_pending = ering->rx_pending;
3737 sky2->tx_pending = ering->tx_pending;
3739 return sky2_reattach(dev);
3742 static int sky2_get_regs_len(struct net_device *dev)
3748 * Returns copy of control register region
3749 * Note: ethtool_get_regs always provides full size (16k) buffer
3751 static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs,
3754 const struct sky2_port *sky2 = netdev_priv(dev);
3755 const void __iomem *io = sky2->hw->regs;
3760 for (b = 0; b < 128; b++) {
3761 /* This complicated switch statement is to make sure and
3762 * only access regions that are unreserved.
3763 * Some blocks are only valid on dual port cards.
3764 * and block 3 has some special diagnostic registers that
3769 /* skip diagnostic ram region */
3770 memcpy_fromio(p + 0x10, io + 0x10, 128 - 0x10);
3773 /* dual port cards only */
3774 case 5: /* Tx Arbiter 2 */
3776 case 14 ... 15: /* TX2 */
3777 case 17: case 19: /* Ram Buffer 2 */
3778 case 22 ... 23: /* Tx Ram Buffer 2 */
3779 case 25: /* Rx MAC Fifo 1 */
3780 case 27: /* Tx MAC Fifo 2 */
3781 case 31: /* GPHY 2 */
3782 case 40 ... 47: /* Pattern Ram 2 */
3783 case 52: case 54: /* TCP Segmentation 2 */
3784 case 112 ... 116: /* GMAC 2 */
3785 if (sky2->hw->ports == 1)
3788 case 0: /* Control */
3789 case 2: /* Mac address */
3790 case 4: /* Tx Arbiter 1 */
3791 case 7: /* PCI express reg */
3793 case 12 ... 13: /* TX1 */
3794 case 16: case 18:/* Rx Ram Buffer 1 */
3795 case 20 ... 21: /* Tx Ram Buffer 1 */
3796 case 24: /* Rx MAC Fifo 1 */
3797 case 26: /* Tx MAC Fifo 1 */
3798 case 28 ... 29: /* Descriptor and status unit */
3799 case 30: /* GPHY 1*/
3800 case 32 ... 39: /* Pattern Ram 1 */
3801 case 48: case 50: /* TCP Segmentation 1 */
3802 case 56 ... 60: /* PCI space */
3803 case 80 ... 84: /* GMAC 1 */
3804 memcpy_fromio(p, io, 128);
3816 /* In order to do Jumbo packets on these chips, need to turn off the
3817 * transmit store/forward. Therefore checksum offload won't work.
3819 static int no_tx_offload(struct net_device *dev)
3821 const struct sky2_port *sky2 = netdev_priv(dev);
3822 const struct sky2_hw *hw = sky2->hw;
3824 return dev->mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_EC_U;
3827 static int sky2_set_tx_csum(struct net_device *dev, u32 data)
3829 if (data && no_tx_offload(dev))
3832 return ethtool_op_set_tx_csum(dev, data);
3836 static int sky2_set_tso(struct net_device *dev, u32 data)
3838 if (data && no_tx_offload(dev))
3841 return ethtool_op_set_tso(dev, data);
3844 static int sky2_get_eeprom_len(struct net_device *dev)
3846 struct sky2_port *sky2 = netdev_priv(dev);
3847 struct sky2_hw *hw = sky2->hw;
3850 reg2 = sky2_pci_read16(hw, PCI_DEV_REG2);
3851 return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
3854 static int sky2_vpd_wait(const struct sky2_hw *hw, int cap, u16 busy)
3856 unsigned long start = jiffies;
3858 while ( (sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F) == busy) {
3859 /* Can take up to 10.6 ms for write */
3860 if (time_after(jiffies, start + HZ/4)) {
3861 dev_err(&hw->pdev->dev, PFX "VPD cycle timed out");
3870 static int sky2_vpd_read(struct sky2_hw *hw, int cap, void *data,
3871 u16 offset, size_t length)
3875 while (length > 0) {
3878 sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset);
3879 rc = sky2_vpd_wait(hw, cap, 0);
3883 val = sky2_pci_read32(hw, cap + PCI_VPD_DATA);
3885 memcpy(data, &val, min(sizeof(val), length));
3886 offset += sizeof(u32);
3887 data += sizeof(u32);
3888 length -= sizeof(u32);
3894 static int sky2_vpd_write(struct sky2_hw *hw, int cap, const void *data,
3895 u16 offset, unsigned int length)
3900 for (i = 0; i < length; i += sizeof(u32)) {
3901 u32 val = *(u32 *)(data + i);
3903 sky2_pci_write32(hw, cap + PCI_VPD_DATA, val);
3904 sky2_pci_write32(hw, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F);
3906 rc = sky2_vpd_wait(hw, cap, PCI_VPD_ADDR_F);
3913 static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
3916 struct sky2_port *sky2 = netdev_priv(dev);
3917 int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
3922 eeprom->magic = SKY2_EEPROM_MAGIC;
3924 return sky2_vpd_read(sky2->hw, cap, data, eeprom->offset, eeprom->len);
3927 static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
3930 struct sky2_port *sky2 = netdev_priv(dev);
3931 int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
3936 if (eeprom->magic != SKY2_EEPROM_MAGIC)
3939 /* Partial writes not supported */
3940 if ((eeprom->offset & 3) || (eeprom->len & 3))
3943 return sky2_vpd_write(sky2->hw, cap, data, eeprom->offset, eeprom->len);
3947 static const struct ethtool_ops sky2_ethtool_ops = {
3948 .get_settings = sky2_get_settings,
3949 .set_settings = sky2_set_settings,
3950 .get_drvinfo = sky2_get_drvinfo,
3951 .get_wol = sky2_get_wol,
3952 .set_wol = sky2_set_wol,
3953 .get_msglevel = sky2_get_msglevel,
3954 .set_msglevel = sky2_set_msglevel,
3955 .nway_reset = sky2_nway_reset,
3956 .get_regs_len = sky2_get_regs_len,
3957 .get_regs = sky2_get_regs,
3958 .get_link = ethtool_op_get_link,
3959 .get_eeprom_len = sky2_get_eeprom_len,
3960 .get_eeprom = sky2_get_eeprom,
3961 .set_eeprom = sky2_set_eeprom,
3962 .set_sg = ethtool_op_set_sg,
3963 .set_tx_csum = sky2_set_tx_csum,
3964 .set_tso = sky2_set_tso,
3965 .get_rx_csum = sky2_get_rx_csum,
3966 .set_rx_csum = sky2_set_rx_csum,
3967 .get_strings = sky2_get_strings,
3968 .get_coalesce = sky2_get_coalesce,
3969 .set_coalesce = sky2_set_coalesce,
3970 .get_ringparam = sky2_get_ringparam,
3971 .set_ringparam = sky2_set_ringparam,
3972 .get_pauseparam = sky2_get_pauseparam,
3973 .set_pauseparam = sky2_set_pauseparam,
3974 .phys_id = sky2_phys_id,
3975 .get_sset_count = sky2_get_sset_count,
3976 .get_ethtool_stats = sky2_get_ethtool_stats,
3979 #ifdef CONFIG_SKY2_DEBUG
3981 static struct dentry *sky2_debug;
3985 * Read and parse the first part of Vital Product Data
3987 #define VPD_SIZE 128
3988 #define VPD_MAGIC 0x82
3990 static const struct vpd_tag {
3994 { "PN", "Part Number" },
3995 { "EC", "Engineering Level" },
3996 { "MN", "Manufacturer" },
3997 { "SN", "Serial Number" },
3998 { "YA", "Asset Tag" },
3999 { "VL", "First Error Log Message" },
4000 { "VF", "Second Error Log Message" },
4001 { "VB", "Boot Agent ROM Configuration" },
4002 { "VE", "EFI UNDI Configuration" },
4005 static void sky2_show_vpd(struct seq_file *seq, struct sky2_hw *hw)
4013 reg2 = sky2_pci_read16(hw, PCI_DEV_REG2);
4014 vpd_size = 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
4016 seq_printf(seq, "%s Product Data\n", pci_name(hw->pdev));
4017 buf = kmalloc(vpd_size, GFP_KERNEL);
4019 seq_puts(seq, "no memory!\n");
4023 if (pci_read_vpd(hw->pdev, 0, vpd_size, buf) < 0) {
4024 seq_puts(seq, "VPD read failed\n");
4028 if (buf[0] != VPD_MAGIC) {
4029 seq_printf(seq, "VPD tag mismatch: %#x\n", buf[0]);
4033 if (len == 0 || len > vpd_size - 4) {
4034 seq_printf(seq, "Invalid id length: %d\n", len);
4038 seq_printf(seq, "%.*s\n", len, buf + 3);
4041 while (offs < vpd_size - 4) {
4044 if (!memcmp("RW", buf + offs, 2)) /* end marker */
4046 len = buf[offs + 2];
4047 if (offs + len + 3 >= vpd_size)
4050 for (i = 0; i < ARRAY_SIZE(vpd_tags); i++) {
4051 if (!memcmp(vpd_tags[i].tag, buf + offs, 2)) {
4052 seq_printf(seq, " %s: %.*s\n",
4053 vpd_tags[i].label, len, buf + offs + 3);
4063 static int sky2_debug_show(struct seq_file *seq, void *v)
4065 struct net_device *dev = seq->private;
4066 const struct sky2_port *sky2 = netdev_priv(dev);
4067 struct sky2_hw *hw = sky2->hw;
4068 unsigned port = sky2->port;
4072 sky2_show_vpd(seq, hw);
4074 seq_printf(seq, "\nIRQ src=%x mask=%x control=%x\n",
4075 sky2_read32(hw, B0_ISRC),
4076 sky2_read32(hw, B0_IMSK),
4077 sky2_read32(hw, B0_Y2_SP_ICR));
4079 if (!netif_running(dev)) {
4080 seq_printf(seq, "network not running\n");
4084 napi_disable(&hw->napi);
4085 last = sky2_read16(hw, STAT_PUT_IDX);
4087 if (hw->st_idx == last)
4088 seq_puts(seq, "Status ring (empty)\n");
4090 seq_puts(seq, "Status ring\n");
4091 for (idx = hw->st_idx; idx != last && idx < STATUS_RING_SIZE;
4092 idx = RING_NEXT(idx, STATUS_RING_SIZE)) {
4093 const struct sky2_status_le *le = hw->st_le + idx;
4094 seq_printf(seq, "[%d] %#x %d %#x\n",
4095 idx, le->opcode, le->length, le->status);
4097 seq_puts(seq, "\n");
4100 seq_printf(seq, "Tx ring pending=%u...%u report=%d done=%d\n",
4101 sky2->tx_cons, sky2->tx_prod,
4102 sky2_read16(hw, port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX),
4103 sky2_read16(hw, Q_ADDR(txqaddr[port], Q_DONE)));
4105 /* Dump contents of tx ring */
4107 for (idx = sky2->tx_next; idx != sky2->tx_prod && idx < TX_RING_SIZE;
4108 idx = RING_NEXT(idx, TX_RING_SIZE)) {
4109 const struct sky2_tx_le *le = sky2->tx_le + idx;
4110 u32 a = le32_to_cpu(le->addr);
4113 seq_printf(seq, "%u:", idx);
4116 switch(le->opcode & ~HW_OWNER) {
4118 seq_printf(seq, " %#x:", a);
4121 seq_printf(seq, " mtu=%d", a);
4124 seq_printf(seq, " vlan=%d", be16_to_cpu(le->length));
4127 seq_printf(seq, " csum=%#x", a);
4130 seq_printf(seq, " tso=%#x(%d)", a, le16_to_cpu(le->length));
4133 seq_printf(seq, " %#x(%d)", a, le16_to_cpu(le->length));
4136 seq_printf(seq, " frag=%#x(%d)", a, le16_to_cpu(le->length));
4139 seq_printf(seq, " op=%#x,%#x(%d)", le->opcode,
4140 a, le16_to_cpu(le->length));
4143 if (le->ctrl & EOP) {
4144 seq_putc(seq, '\n');
4149 seq_printf(seq, "\nRx ring hw get=%d put=%d last=%d\n",
4150 sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_GET_IDX)),
4151 sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_PUT_IDX)),
4152 sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_LAST_IDX)));
4154 sky2_read32(hw, B0_Y2_SP_LISR);
4155 napi_enable(&hw->napi);
4159 static int sky2_debug_open(struct inode *inode, struct file *file)
4161 return single_open(file, sky2_debug_show, inode->i_private);
4164 static const struct file_operations sky2_debug_fops = {
4165 .owner = THIS_MODULE,
4166 .open = sky2_debug_open,
4168 .llseek = seq_lseek,
4169 .release = single_release,
4173 * Use network device events to create/remove/rename
4174 * debugfs file entries
4176 static int sky2_device_event(struct notifier_block *unused,
4177 unsigned long event, void *ptr)
4179 struct net_device *dev = ptr;
4180 struct sky2_port *sky2 = netdev_priv(dev);
4182 if (dev->netdev_ops->ndo_open != sky2_up || !sky2_debug)
4186 case NETDEV_CHANGENAME:
4187 if (sky2->debugfs) {
4188 sky2->debugfs = debugfs_rename(sky2_debug, sky2->debugfs,
4189 sky2_debug, dev->name);
4193 case NETDEV_GOING_DOWN:
4194 if (sky2->debugfs) {
4195 printk(KERN_DEBUG PFX "%s: remove debugfs\n",
4197 debugfs_remove(sky2->debugfs);
4198 sky2->debugfs = NULL;
4203 sky2->debugfs = debugfs_create_file(dev->name, S_IRUGO,
4206 if (IS_ERR(sky2->debugfs))
4207 sky2->debugfs = NULL;
4213 static struct notifier_block sky2_notifier = {
4214 .notifier_call = sky2_device_event,
4218 static __init void sky2_debug_init(void)
4222 ent = debugfs_create_dir("sky2", NULL);
4223 if (!ent || IS_ERR(ent))
4227 register_netdevice_notifier(&sky2_notifier);
4230 static __exit void sky2_debug_cleanup(void)
4233 unregister_netdevice_notifier(&sky2_notifier);
4234 debugfs_remove(sky2_debug);
4240 #define sky2_debug_init()
4241 #define sky2_debug_cleanup()
4244 /* Two copies of network device operations to handle special case of
4245 not allowing netpoll on second port */
4246 static const struct net_device_ops sky2_netdev_ops[2] = {
4248 .ndo_open = sky2_up,
4249 .ndo_stop = sky2_down,
4250 .ndo_start_xmit = sky2_xmit_frame,
4251 .ndo_do_ioctl = sky2_ioctl,
4252 .ndo_validate_addr = eth_validate_addr,
4253 .ndo_set_mac_address = sky2_set_mac_address,
4254 .ndo_set_multicast_list = sky2_set_multicast,
4255 .ndo_change_mtu = sky2_change_mtu,
4256 .ndo_tx_timeout = sky2_tx_timeout,
4257 #ifdef SKY2_VLAN_TAG_USED
4258 .ndo_vlan_rx_register = sky2_vlan_rx_register,
4260 #ifdef CONFIG_NET_POLL_CONTROLLER
4261 .ndo_poll_controller = sky2_netpoll,
4265 .ndo_open = sky2_up,
4266 .ndo_stop = sky2_down,
4267 .ndo_start_xmit = sky2_xmit_frame,
4268 .ndo_do_ioctl = sky2_ioctl,
4269 .ndo_validate_addr = eth_validate_addr,
4270 .ndo_set_mac_address = sky2_set_mac_address,
4271 .ndo_set_multicast_list = sky2_set_multicast,
4272 .ndo_change_mtu = sky2_change_mtu,
4273 .ndo_tx_timeout = sky2_tx_timeout,
4274 #ifdef SKY2_VLAN_TAG_USED
4275 .ndo_vlan_rx_register = sky2_vlan_rx_register,
4280 /* Initialize network device */
4281 static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
4283 int highmem, int wol)
4285 struct sky2_port *sky2;
4286 struct net_device *dev = alloc_etherdev(sizeof(*sky2));
4289 dev_err(&hw->pdev->dev, "etherdev alloc failed\n");
4293 SET_NETDEV_DEV(dev, &hw->pdev->dev);
4294 dev->irq = hw->pdev->irq;
4295 SET_ETHTOOL_OPS(dev, &sky2_ethtool_ops);
4296 dev->watchdog_timeo = TX_WATCHDOG;
4297 dev->netdev_ops = &sky2_netdev_ops[port];
4299 sky2 = netdev_priv(dev);
4302 sky2->msg_enable = netif_msg_init(debug, default_msg);
4304 /* Auto speed and flow control */
4305 sky2->flags = SKY2_FLAG_AUTO_SPEED | SKY2_FLAG_AUTO_PAUSE;
4306 if (hw->chip_id != CHIP_ID_YUKON_XL)
4307 sky2->flags |= SKY2_FLAG_RX_CHECKSUM;
4309 sky2->flow_mode = FC_BOTH;
4313 sky2->advertising = sky2_supported_modes(hw);
4316 spin_lock_init(&sky2->phy_lock);
4317 sky2->tx_pending = TX_DEF_PENDING;
4318 sky2->rx_pending = RX_DEF_PENDING;
4320 hw->dev[port] = dev;
4324 dev->features |= NETIF_F_TSO | NETIF_F_IP_CSUM | NETIF_F_SG;
4326 dev->features |= NETIF_F_HIGHDMA;
4328 #ifdef SKY2_VLAN_TAG_USED
4329 /* The workaround for FE+ status conflicts with VLAN tag detection. */
4330 if (!(sky2->hw->chip_id == CHIP_ID_YUKON_FE_P &&
4331 sky2->hw->chip_rev == CHIP_REV_YU_FE2_A0)) {
4332 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
4336 /* read the mac address */
4337 memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN);
4338 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
4343 static void __devinit sky2_show_addr(struct net_device *dev)
4345 const struct sky2_port *sky2 = netdev_priv(dev);
4347 if (netif_msg_probe(sky2))
4348 printk(KERN_INFO PFX "%s: addr %pM\n",
4349 dev->name, dev->dev_addr);
4352 /* Handle software interrupt used during MSI test */
4353 static irqreturn_t __devinit sky2_test_intr(int irq, void *dev_id)
4355 struct sky2_hw *hw = dev_id;
4356 u32 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
4361 if (status & Y2_IS_IRQ_SW) {
4362 hw->flags |= SKY2_HW_USE_MSI;
4363 wake_up(&hw->msi_wait);
4364 sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
4366 sky2_write32(hw, B0_Y2_SP_ICR, 2);
4371 /* Test interrupt path by forcing a a software IRQ */
4372 static int __devinit sky2_test_msi(struct sky2_hw *hw)
4374 struct pci_dev *pdev = hw->pdev;
4377 init_waitqueue_head (&hw->msi_wait);
4379 sky2_write32(hw, B0_IMSK, Y2_IS_IRQ_SW);
4381 err = request_irq(pdev->irq, sky2_test_intr, 0, DRV_NAME, hw);
4383 dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
4387 sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ);
4388 sky2_read8(hw, B0_CTST);
4390 wait_event_timeout(hw->msi_wait, (hw->flags & SKY2_HW_USE_MSI), HZ/10);
4392 if (!(hw->flags & SKY2_HW_USE_MSI)) {
4393 /* MSI test failed, go back to INTx mode */
4394 dev_info(&pdev->dev, "No interrupt generated using MSI, "
4395 "switching to INTx mode.\n");
4398 sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
4401 sky2_write32(hw, B0_IMSK, 0);
4402 sky2_read32(hw, B0_IMSK);
4404 free_irq(pdev->irq, hw);
4409 /* This driver supports yukon2 chipset only */
4410 static const char *sky2_name(u8 chipid, char *buf, int sz)
4412 const char *name[] = {
4414 "EC Ultra", /* 0xb4 */
4415 "Extreme", /* 0xb5 */
4419 "Supreme", /* 0xb9 */
4423 if (chipid >= CHIP_ID_YUKON_XL && chipid < CHIP_ID_YUKON_UL_2)
4424 strncpy(buf, name[chipid - CHIP_ID_YUKON_XL], sz);
4426 snprintf(buf, sz, "(chip %#x)", chipid);
4430 static int __devinit sky2_probe(struct pci_dev *pdev,
4431 const struct pci_device_id *ent)
4433 struct net_device *dev;
4435 int err, using_dac = 0, wol_default;
4439 err = pci_enable_device(pdev);
4441 dev_err(&pdev->dev, "cannot enable PCI device\n");
4445 /* Get configuration information
4446 * Note: only regular PCI config access once to test for HW issues
4447 * other PCI access through shared memory for speed and to
4448 * avoid MMCONFIG problems.
4450 err = pci_read_config_dword(pdev, PCI_DEV_REG2, ®);
4452 dev_err(&pdev->dev, "PCI read config failed\n");
4457 dev_err(&pdev->dev, "PCI configuration read error\n");
4461 err = pci_request_regions(pdev, DRV_NAME);
4463 dev_err(&pdev->dev, "cannot obtain PCI resources\n");
4464 goto err_out_disable;
4467 pci_set_master(pdev);
4469 if (sizeof(dma_addr_t) > sizeof(u32) &&
4470 !(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))) {
4472 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
4474 dev_err(&pdev->dev, "unable to obtain 64 bit DMA "
4475 "for consistent allocations\n");
4476 goto err_out_free_regions;
4479 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
4481 dev_err(&pdev->dev, "no usable DMA configuration\n");
4482 goto err_out_free_regions;
4488 /* The sk98lin vendor driver uses hardware byte swapping but
4489 * this driver uses software swapping.
4491 reg &= ~PCI_REV_DESC;
4492 err = pci_write_config_dword(pdev,PCI_DEV_REG2, reg);
4494 dev_err(&pdev->dev, "PCI write config failed\n");
4495 goto err_out_free_regions;
4499 wol_default = device_may_wakeup(&pdev->dev) ? WAKE_MAGIC : 0;
4502 hw = kzalloc(sizeof(*hw), GFP_KERNEL);
4504 dev_err(&pdev->dev, "cannot allocate hardware struct\n");
4505 goto err_out_free_regions;
4510 hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
4512 dev_err(&pdev->dev, "cannot map device registers\n");
4513 goto err_out_free_hw;
4516 /* ring for status responses */
4517 hw->st_le = pci_alloc_consistent(pdev, STATUS_LE_BYTES, &hw->st_dma);
4519 goto err_out_iounmap;
4521 err = sky2_init(hw);
4523 goto err_out_iounmap;
4525 dev_info(&pdev->dev, "Yukon-2 %s chip revision %d\n",
4526 sky2_name(hw->chip_id, buf1, sizeof(buf1)), hw->chip_rev);
4530 dev = sky2_init_netdev(hw, 0, using_dac, wol_default);
4533 goto err_out_free_pci;
4536 if (!disable_msi && pci_enable_msi(pdev) == 0) {
4537 err = sky2_test_msi(hw);
4538 if (err == -EOPNOTSUPP)
4539 pci_disable_msi(pdev);
4541 goto err_out_free_netdev;
4544 err = register_netdev(dev);
4546 dev_err(&pdev->dev, "cannot register net device\n");
4547 goto err_out_free_netdev;
4550 netif_napi_add(dev, &hw->napi, sky2_poll, NAPI_WEIGHT);
4552 err = request_irq(pdev->irq, sky2_intr,
4553 (hw->flags & SKY2_HW_USE_MSI) ? 0 : IRQF_SHARED,
4556 dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
4557 goto err_out_unregister;
4559 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
4560 napi_enable(&hw->napi);
4562 sky2_show_addr(dev);
4564 if (hw->ports > 1) {
4565 struct net_device *dev1;
4567 dev1 = sky2_init_netdev(hw, 1, using_dac, wol_default);
4569 dev_warn(&pdev->dev, "allocation for second device failed\n");
4570 else if ((err = register_netdev(dev1))) {
4571 dev_warn(&pdev->dev,
4572 "register of second port failed (%d)\n", err);
4576 sky2_show_addr(dev1);
4579 setup_timer(&hw->watchdog_timer, sky2_watchdog, (unsigned long) hw);
4580 INIT_WORK(&hw->restart_work, sky2_restart);
4582 pci_set_drvdata(pdev, hw);
4587 if (hw->flags & SKY2_HW_USE_MSI)
4588 pci_disable_msi(pdev);
4589 unregister_netdev(dev);
4590 err_out_free_netdev:
4593 sky2_write8(hw, B0_CTST, CS_RST_SET);
4594 pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
4599 err_out_free_regions:
4600 pci_release_regions(pdev);
4602 pci_disable_device(pdev);
4604 pci_set_drvdata(pdev, NULL);
4608 static void __devexit sky2_remove(struct pci_dev *pdev)
4610 struct sky2_hw *hw = pci_get_drvdata(pdev);
4616 del_timer_sync(&hw->watchdog_timer);
4617 cancel_work_sync(&hw->restart_work);
4619 for (i = hw->ports-1; i >= 0; --i)
4620 unregister_netdev(hw->dev[i]);
4622 sky2_write32(hw, B0_IMSK, 0);
4626 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
4627 sky2_write8(hw, B0_CTST, CS_RST_SET);
4628 sky2_read8(hw, B0_CTST);
4630 free_irq(pdev->irq, hw);
4631 if (hw->flags & SKY2_HW_USE_MSI)
4632 pci_disable_msi(pdev);
4633 pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
4634 pci_release_regions(pdev);
4635 pci_disable_device(pdev);
4637 for (i = hw->ports-1; i >= 0; --i)
4638 free_netdev(hw->dev[i]);
4643 pci_set_drvdata(pdev, NULL);
4647 static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
4649 struct sky2_hw *hw = pci_get_drvdata(pdev);
4655 del_timer_sync(&hw->watchdog_timer);
4656 cancel_work_sync(&hw->restart_work);
4659 for (i = 0; i < hw->ports; i++) {
4660 struct net_device *dev = hw->dev[i];
4661 struct sky2_port *sky2 = netdev_priv(dev);
4666 sky2_wol_init(sky2);
4671 sky2_write32(hw, B0_IMSK, 0);
4672 napi_disable(&hw->napi);
4676 pci_save_state(pdev);
4677 pci_enable_wake(pdev, pci_choose_state(pdev, state), wol);
4678 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4683 static int sky2_resume(struct pci_dev *pdev)
4685 struct sky2_hw *hw = pci_get_drvdata(pdev);
4691 err = pci_set_power_state(pdev, PCI_D0);
4695 err = pci_restore_state(pdev);
4699 pci_enable_wake(pdev, PCI_D0, 0);
4701 /* Re-enable all clocks */
4702 if (hw->chip_id == CHIP_ID_YUKON_EX ||
4703 hw->chip_id == CHIP_ID_YUKON_EC_U ||
4704 hw->chip_id == CHIP_ID_YUKON_FE_P)
4705 sky2_pci_write32(hw, PCI_DEV_REG3, 0);
4708 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
4709 napi_enable(&hw->napi);
4712 for (i = 0; i < hw->ports; i++) {
4713 err = sky2_reattach(hw->dev[i]);
4723 dev_err(&pdev->dev, "resume failed (%d)\n", err);
4724 pci_disable_device(pdev);
4729 static void sky2_shutdown(struct pci_dev *pdev)
4731 struct sky2_hw *hw = pci_get_drvdata(pdev);
4738 del_timer_sync(&hw->watchdog_timer);
4740 for (i = 0; i < hw->ports; i++) {
4741 struct net_device *dev = hw->dev[i];
4742 struct sky2_port *sky2 = netdev_priv(dev);
4746 sky2_wol_init(sky2);
4754 pci_enable_wake(pdev, PCI_D3hot, wol);
4755 pci_enable_wake(pdev, PCI_D3cold, wol);
4757 pci_disable_device(pdev);
4758 pci_set_power_state(pdev, PCI_D3hot);
4761 static struct pci_driver sky2_driver = {
4763 .id_table = sky2_id_table,
4764 .probe = sky2_probe,
4765 .remove = __devexit_p(sky2_remove),
4767 .suspend = sky2_suspend,
4768 .resume = sky2_resume,
4770 .shutdown = sky2_shutdown,
4773 static int __init sky2_init_module(void)
4775 pr_info(PFX "driver version " DRV_VERSION "\n");
4778 return pci_register_driver(&sky2_driver);
4781 static void __exit sky2_cleanup_module(void)
4783 pci_unregister_driver(&sky2_driver);
4784 sky2_debug_cleanup();
4787 module_init(sky2_init_module);
4788 module_exit(sky2_cleanup_module);
4790 MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver");
4791 MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
4792 MODULE_LICENSE("GPL");
4793 MODULE_VERSION(DRV_VERSION);