2 * New driver for Marvell Yukon 2 chipset.
3 * Based on earlier sk98lin, and skge driver.
5 * This driver intentionally does not support all the features
6 * of the original driver such as link fail-over and link management because
7 * those should be done at higher levels.
9 * Copyright (C) 2005 Stephen Hemminger <shemminger@osdl.org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
32 #include <linux/config.h>
33 #include <linux/crc32.h>
34 #include <linux/kernel.h>
35 #include <linux/version.h>
36 #include <linux/module.h>
37 #include <linux/netdevice.h>
38 #include <linux/dma-mapping.h>
39 #include <linux/etherdevice.h>
40 #include <linux/ethtool.h>
41 #include <linux/pci.h>
43 #include <linux/tcp.h>
45 #include <linux/delay.h>
46 #include <linux/workqueue.h>
47 #include <linux/if_vlan.h>
48 #include <linux/prefetch.h>
49 #include <linux/mii.h>
53 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
54 #define SKY2_VLAN_TAG_USED 1
59 #define DRV_NAME "sky2"
60 #define DRV_VERSION "0.12"
61 #define PFX DRV_NAME " "
64 * The Yukon II chipset takes 64 bit command blocks (called list elements)
65 * that are organized into three (receive, transmit, status) different rings
66 * similar to Tigon3. A transmit can require several elements;
67 * a receive requires one (or two if using 64 bit dma).
70 #define is_ec_a1(hw) \
71 unlikely((hw)->chip_id == CHIP_ID_YUKON_EC && \
72 (hw)->chip_rev == CHIP_REV_YU_EC_A1)
74 #define RX_LE_SIZE 512
75 #define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le))
76 #define RX_MAX_PENDING (RX_LE_SIZE/2 - 2)
77 #define RX_DEF_PENDING RX_MAX_PENDING
78 #define RX_SKB_ALIGN 8
80 #define TX_RING_SIZE 512
81 #define TX_DEF_PENDING (TX_RING_SIZE - 1)
82 #define TX_MIN_PENDING 64
83 #define MAX_SKB_TX_LE (4 + 2*MAX_SKB_FRAGS)
85 #define STATUS_RING_SIZE 2048 /* 2 ports * (TX + 2*RX) */
86 #define STATUS_LE_BYTES (STATUS_RING_SIZE*sizeof(struct sky2_status_le))
87 #define ETH_JUMBO_MTU 9000
88 #define TX_WATCHDOG (5 * HZ)
89 #define NAPI_WEIGHT 64
90 #define PHY_RETRIES 1000
92 static const u32 default_msg
=
93 NETIF_MSG_DRV
| NETIF_MSG_PROBE
| NETIF_MSG_LINK
94 | NETIF_MSG_TIMER
| NETIF_MSG_TX_ERR
| NETIF_MSG_RX_ERR
95 | NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
;
97 static int debug
= -1; /* defaults above */
98 module_param(debug
, int, 0);
99 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
101 static int copybreak __read_mostly
= 256;
102 module_param(copybreak
, int, 0);
103 MODULE_PARM_DESC(copybreak
, "Receive copy threshold");
105 static const struct pci_device_id sky2_id_table
[] = {
106 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT
, 0x9000) },
107 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT
, 0x9E00) },
108 { PCI_DEVICE(PCI_VENDOR_ID_DLINK
, 0x4b00) },
109 { PCI_DEVICE(PCI_VENDOR_ID_DLINK
, 0x4b01) },
110 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4340) },
111 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4341) },
112 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4342) },
113 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4343) },
114 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4344) },
115 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4345) },
116 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4346) },
117 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4347) },
118 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4350) },
119 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4351) },
120 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4352) },
121 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4360) },
122 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4361) },
123 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4362) },
124 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4363) },
128 MODULE_DEVICE_TABLE(pci
, sky2_id_table
);
130 /* Avoid conditionals by using array */
131 static const unsigned txqaddr
[] = { Q_XA1
, Q_XA2
};
132 static const unsigned rxqaddr
[] = { Q_R1
, Q_R2
};
134 /* This driver supports yukon2 chipset only */
135 static const char *yukon2_name
[] = {
137 "EC Ultra", /* 0xb4 */
138 "UNKNOWN", /* 0xb5 */
143 /* Access to external PHY */
144 static int gm_phy_write(struct sky2_hw
*hw
, unsigned port
, u16 reg
, u16 val
)
148 gma_write16(hw
, port
, GM_SMI_DATA
, val
);
149 gma_write16(hw
, port
, GM_SMI_CTRL
,
150 GM_SMI_CT_PHY_AD(PHY_ADDR_MARV
) | GM_SMI_CT_REG_AD(reg
));
152 for (i
= 0; i
< PHY_RETRIES
; i
++) {
153 if (!(gma_read16(hw
, port
, GM_SMI_CTRL
) & GM_SMI_CT_BUSY
))
158 printk(KERN_WARNING PFX
"%s: phy write timeout\n", hw
->dev
[port
]->name
);
162 static int __gm_phy_read(struct sky2_hw
*hw
, unsigned port
, u16 reg
, u16
*val
)
166 gma_write16(hw
, port
, GM_SMI_CTRL
, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV
)
167 | GM_SMI_CT_REG_AD(reg
) | GM_SMI_CT_OP_RD
);
169 for (i
= 0; i
< PHY_RETRIES
; i
++) {
170 if (gma_read16(hw
, port
, GM_SMI_CTRL
) & GM_SMI_CT_RD_VAL
) {
171 *val
= gma_read16(hw
, port
, GM_SMI_DATA
);
181 static u16
gm_phy_read(struct sky2_hw
*hw
, unsigned port
, u16 reg
)
185 if (__gm_phy_read(hw
, port
, reg
, &v
) != 0)
186 printk(KERN_WARNING PFX
"%s: phy read timeout\n", hw
->dev
[port
]->name
);
190 static int sky2_set_power_state(struct sky2_hw
*hw
, pci_power_t state
)
197 pr_debug("sky2_set_power_state %d\n", state
);
198 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
200 pci_read_config_word(hw
->pdev
, hw
->pm_cap
+ PCI_PM_PMC
, &power_control
);
201 vaux
= (sky2_read8(hw
, B0_CTST
) & Y2_VAUX_AVAIL
) &&
202 (power_control
& PCI_PM_CAP_PME_D3cold
);
204 pci_read_config_word(hw
->pdev
, hw
->pm_cap
+ PCI_PM_CTRL
, &power_control
);
206 power_control
|= PCI_PM_CTRL_PME_STATUS
;
207 power_control
&= ~(PCI_PM_CTRL_STATE_MASK
);
211 /* switch power to VCC (WA for VAUX problem) */
212 sky2_write8(hw
, B0_POWER_CTRL
,
213 PC_VAUX_ENA
| PC_VCC_ENA
| PC_VAUX_OFF
| PC_VCC_ON
);
215 /* disable Core Clock Division, */
216 sky2_write32(hw
, B2_Y2_CLK_CTRL
, Y2_CLK_DIV_DIS
);
218 if (hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
> 1)
219 /* enable bits are inverted */
220 sky2_write8(hw
, B2_Y2_CLK_GATE
,
221 Y2_PCI_CLK_LNK1_DIS
| Y2_COR_CLK_LNK1_DIS
|
222 Y2_CLK_GAT_LNK1_DIS
| Y2_PCI_CLK_LNK2_DIS
|
223 Y2_COR_CLK_LNK2_DIS
| Y2_CLK_GAT_LNK2_DIS
);
225 sky2_write8(hw
, B2_Y2_CLK_GATE
, 0);
227 /* Turn off phy power saving */
228 pci_read_config_dword(hw
->pdev
, PCI_DEV_REG1
, ®1
);
229 reg1
&= ~(PCI_Y2_PHY1_POWD
| PCI_Y2_PHY2_POWD
);
231 /* looks like this XL is back asswards .. */
232 if (hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
> 1) {
233 reg1
|= PCI_Y2_PHY1_COMA
;
235 reg1
|= PCI_Y2_PHY2_COMA
;
237 pci_write_config_dword(hw
->pdev
, PCI_DEV_REG1
, reg1
);
242 /* Turn on phy power saving */
243 pci_read_config_dword(hw
->pdev
, PCI_DEV_REG1
, ®1
);
244 if (hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
> 1)
245 reg1
&= ~(PCI_Y2_PHY1_POWD
| PCI_Y2_PHY2_POWD
);
247 reg1
|= (PCI_Y2_PHY1_POWD
| PCI_Y2_PHY2_POWD
);
248 pci_write_config_dword(hw
->pdev
, PCI_DEV_REG1
, reg1
);
250 if (hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
> 1)
251 sky2_write8(hw
, B2_Y2_CLK_GATE
, 0);
253 /* enable bits are inverted */
254 sky2_write8(hw
, B2_Y2_CLK_GATE
,
255 Y2_PCI_CLK_LNK1_DIS
| Y2_COR_CLK_LNK1_DIS
|
256 Y2_CLK_GAT_LNK1_DIS
| Y2_PCI_CLK_LNK2_DIS
|
257 Y2_COR_CLK_LNK2_DIS
| Y2_CLK_GAT_LNK2_DIS
);
259 /* switch power to VAUX */
260 if (vaux
&& state
!= PCI_D3cold
)
261 sky2_write8(hw
, B0_POWER_CTRL
,
262 (PC_VAUX_ENA
| PC_VCC_ENA
|
263 PC_VAUX_ON
| PC_VCC_OFF
));
266 printk(KERN_ERR PFX
"Unknown power state %d\n", state
);
270 pci_write_config_byte(hw
->pdev
, hw
->pm_cap
+ PCI_PM_CTRL
, power_control
);
271 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
275 static void sky2_phy_reset(struct sky2_hw
*hw
, unsigned port
)
279 /* disable all GMAC IRQ's */
280 sky2_write8(hw
, SK_REG(port
, GMAC_IRQ_MSK
), 0);
281 /* disable PHY IRQs */
282 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, 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 static void sky2_phy_init(struct sky2_hw
*hw
, unsigned port
)
296 struct sky2_port
*sky2
= netdev_priv(hw
->dev
[port
]);
297 u16 ctrl
, ct1000
, adv
, pg
, ledctrl
, ledover
;
299 if (sky2
->autoneg
== AUTONEG_ENABLE
&& hw
->chip_id
!= CHIP_ID_YUKON_XL
) {
300 u16 ectrl
= gm_phy_read(hw
, port
, PHY_MARV_EXT_CTRL
);
302 ectrl
&= ~(PHY_M_EC_M_DSC_MSK
| PHY_M_EC_S_DSC_MSK
|
304 ectrl
|= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ
);
306 if (hw
->chip_id
== CHIP_ID_YUKON_EC
)
307 ectrl
|= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA
;
309 ectrl
|= PHY_M_EC_M_DSC(2) | PHY_M_EC_S_DSC(3);
311 gm_phy_write(hw
, port
, PHY_MARV_EXT_CTRL
, ectrl
);
314 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_PHY_CTRL
);
316 if (hw
->chip_id
== CHIP_ID_YUKON_FE
) {
317 /* enable automatic crossover */
318 ctrl
|= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO
) >> 1;
320 /* disable energy detect */
321 ctrl
&= ~PHY_M_PC_EN_DET_MSK
;
323 /* enable automatic crossover */
324 ctrl
|= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO
);
326 if (sky2
->autoneg
== AUTONEG_ENABLE
&&
327 hw
->chip_id
== CHIP_ID_YUKON_XL
) {
328 ctrl
&= ~PHY_M_PC_DSC_MSK
;
329 ctrl
|= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA
;
332 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, ctrl
);
334 /* workaround for deviation #4.88 (CRC errors) */
335 /* disable Automatic Crossover */
337 ctrl
&= ~PHY_M_PC_MDIX_MSK
;
338 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, ctrl
);
340 if (hw
->chip_id
== CHIP_ID_YUKON_XL
) {
341 /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */
342 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 2);
343 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_PHY_CTRL
);
344 ctrl
&= ~PHY_M_MAC_MD_MSK
;
345 ctrl
|= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX
);
346 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, ctrl
);
348 /* select page 1 to access Fiber registers */
349 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 1);
353 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_CTRL
);
354 if (sky2
->autoneg
== AUTONEG_DISABLE
)
359 ctrl
|= PHY_CT_RESET
;
360 gm_phy_write(hw
, port
, PHY_MARV_CTRL
, ctrl
);
366 if (sky2
->autoneg
== AUTONEG_ENABLE
) {
368 if (sky2
->advertising
& ADVERTISED_1000baseT_Full
)
369 ct1000
|= PHY_M_1000C_AFD
;
370 if (sky2
->advertising
& ADVERTISED_1000baseT_Half
)
371 ct1000
|= PHY_M_1000C_AHD
;
372 if (sky2
->advertising
& ADVERTISED_100baseT_Full
)
373 adv
|= PHY_M_AN_100_FD
;
374 if (sky2
->advertising
& ADVERTISED_100baseT_Half
)
375 adv
|= PHY_M_AN_100_HD
;
376 if (sky2
->advertising
& ADVERTISED_10baseT_Full
)
377 adv
|= PHY_M_AN_10_FD
;
378 if (sky2
->advertising
& ADVERTISED_10baseT_Half
)
379 adv
|= PHY_M_AN_10_HD
;
380 } else /* special defines for FIBER (88E1011S only) */
381 adv
|= PHY_M_AN_1000X_AHD
| PHY_M_AN_1000X_AFD
;
383 /* Set Flow-control capabilities */
384 if (sky2
->tx_pause
&& sky2
->rx_pause
)
385 adv
|= PHY_AN_PAUSE_CAP
; /* symmetric */
386 else if (sky2
->rx_pause
&& !sky2
->tx_pause
)
387 adv
|= PHY_AN_PAUSE_ASYM
| PHY_AN_PAUSE_CAP
;
388 else if (!sky2
->rx_pause
&& sky2
->tx_pause
)
389 adv
|= PHY_AN_PAUSE_ASYM
; /* local */
391 /* Restart Auto-negotiation */
392 ctrl
|= PHY_CT_ANE
| PHY_CT_RE_CFG
;
394 /* forced speed/duplex settings */
395 ct1000
= PHY_M_1000C_MSE
;
397 if (sky2
->duplex
== DUPLEX_FULL
)
398 ctrl
|= PHY_CT_DUP_MD
;
400 switch (sky2
->speed
) {
402 ctrl
|= PHY_CT_SP1000
;
405 ctrl
|= PHY_CT_SP100
;
409 ctrl
|= PHY_CT_RESET
;
412 if (hw
->chip_id
!= CHIP_ID_YUKON_FE
)
413 gm_phy_write(hw
, port
, PHY_MARV_1000T_CTRL
, ct1000
);
415 gm_phy_write(hw
, port
, PHY_MARV_AUNE_ADV
, adv
);
416 gm_phy_write(hw
, port
, PHY_MARV_CTRL
, ctrl
);
418 /* Setup Phy LED's */
419 ledctrl
= PHY_M_LED_PULS_DUR(PULS_170MS
);
422 switch (hw
->chip_id
) {
423 case CHIP_ID_YUKON_FE
:
424 /* on 88E3082 these bits are at 11..9 (shifted left) */
425 ledctrl
|= PHY_M_LED_BLINK_RT(BLINK_84MS
) << 1;
427 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_FE_LED_PAR
);
429 /* delete ACT LED control bits */
430 ctrl
&= ~PHY_M_FELP_LED1_MSK
;
431 /* change ACT LED control to blink mode */
432 ctrl
|= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL
);
433 gm_phy_write(hw
, port
, PHY_MARV_FE_LED_PAR
, ctrl
);
436 case CHIP_ID_YUKON_XL
:
437 pg
= gm_phy_read(hw
, port
, PHY_MARV_EXT_ADR
);
439 /* select page 3 to access LED control register */
440 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 3);
442 /* set LED Function Control register */
443 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
444 PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */
445 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
446 PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */
448 /* set Polarity Control register */
449 gm_phy_write(hw
, port
, PHY_MARV_PHY_STAT
,
450 (PHY_M_POLC_LS1_P_MIX(4) |
451 PHY_M_POLC_IS0_P_MIX(4) |
452 PHY_M_POLC_LOS_CTRL(2) |
453 PHY_M_POLC_INIT_CTRL(2) |
454 PHY_M_POLC_STA1_CTRL(2) |
455 PHY_M_POLC_STA0_CTRL(2)));
457 /* restore page register */
458 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, pg
);
462 /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
463 ledctrl
|= PHY_M_LED_BLINK_RT(BLINK_84MS
) | PHY_M_LEDC_TX_CTRL
;
464 /* turn off the Rx LED (LED_RX) */
465 ledover
|= PHY_M_LED_MO_RX(MO_LED_OFF
);
468 gm_phy_write(hw
, port
, PHY_MARV_LED_CTRL
, ledctrl
);
470 if (sky2
->autoneg
== AUTONEG_DISABLE
|| sky2
->speed
== SPEED_100
) {
471 /* turn on 100 Mbps LED (LED_LINK100) */
472 ledover
|= PHY_M_LED_MO_100(MO_LED_ON
);
476 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
, ledover
);
478 /* Enable phy interrupt on auto-negotiation complete (or link up) */
479 if (sky2
->autoneg
== AUTONEG_ENABLE
)
480 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_IS_AN_COMPL
);
482 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_DEF_MSK
);
485 /* Force a renegotiation */
486 static void sky2_phy_reinit(struct sky2_port
*sky2
)
488 down(&sky2
->phy_sema
);
489 sky2_phy_init(sky2
->hw
, sky2
->port
);
493 static void sky2_mac_init(struct sky2_hw
*hw
, unsigned port
)
495 struct sky2_port
*sky2
= netdev_priv(hw
->dev
[port
]);
498 const u8
*addr
= hw
->dev
[port
]->dev_addr
;
500 sky2_write32(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_SET
);
501 sky2_write32(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_CLR
|GPC_ENA_PAUSE
);
503 sky2_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_RST_CLR
);
505 if (hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
== 0 && port
== 1) {
506 /* WA DEV_472 -- looks like crossed wires on port 2 */
507 /* clear GMAC 1 Control reset */
508 sky2_write8(hw
, SK_REG(0, GMAC_CTRL
), GMC_RST_CLR
);
510 sky2_write8(hw
, SK_REG(1, GMAC_CTRL
), GMC_RST_SET
);
511 sky2_write8(hw
, SK_REG(1, GMAC_CTRL
), GMC_RST_CLR
);
512 } while (gm_phy_read(hw
, 1, PHY_MARV_ID0
) != PHY_MARV_ID0_VAL
||
513 gm_phy_read(hw
, 1, PHY_MARV_ID1
) != PHY_MARV_ID1_Y2
||
514 gm_phy_read(hw
, 1, PHY_MARV_INT_MASK
) != 0);
517 if (sky2
->autoneg
== AUTONEG_DISABLE
) {
518 reg
= gma_read16(hw
, port
, GM_GP_CTRL
);
519 reg
|= GM_GPCR_AU_ALL_DIS
;
520 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
521 gma_read16(hw
, port
, GM_GP_CTRL
);
523 switch (sky2
->speed
) {
525 reg
|= GM_GPCR_SPEED_1000
;
528 reg
|= GM_GPCR_SPEED_100
;
531 if (sky2
->duplex
== DUPLEX_FULL
)
532 reg
|= GM_GPCR_DUP_FULL
;
534 reg
= GM_GPCR_SPEED_1000
| GM_GPCR_SPEED_100
| GM_GPCR_DUP_FULL
;
536 if (!sky2
->tx_pause
&& !sky2
->rx_pause
) {
537 sky2_write32(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_OFF
);
539 GM_GPCR_FC_TX_DIS
| GM_GPCR_FC_RX_DIS
| GM_GPCR_AU_FCT_DIS
;
540 } else if (sky2
->tx_pause
&& !sky2
->rx_pause
) {
541 /* disable Rx flow-control */
542 reg
|= GM_GPCR_FC_RX_DIS
| GM_GPCR_AU_FCT_DIS
;
545 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
547 sky2_read16(hw
, SK_REG(port
, GMAC_IRQ_SRC
));
549 down(&sky2
->phy_sema
);
550 sky2_phy_init(hw
, port
);
554 reg
= gma_read16(hw
, port
, GM_PHY_ADDR
);
555 gma_write16(hw
, port
, GM_PHY_ADDR
, reg
| GM_PAR_MIB_CLR
);
557 for (i
= 0; i
< GM_MIB_CNT_SIZE
; i
++)
558 gma_read16(hw
, port
, GM_MIB_CNT_BASE
+ 8 * i
);
559 gma_write16(hw
, port
, GM_PHY_ADDR
, reg
);
561 /* transmit control */
562 gma_write16(hw
, port
, GM_TX_CTRL
, TX_COL_THR(TX_COL_DEF
));
564 /* receive control reg: unicast + multicast + no FCS */
565 gma_write16(hw
, port
, GM_RX_CTRL
,
566 GM_RXCR_UCF_ENA
| GM_RXCR_CRC_DIS
| GM_RXCR_MCF_ENA
);
568 /* transmit flow control */
569 gma_write16(hw
, port
, GM_TX_FLOW_CTRL
, 0xffff);
571 /* transmit parameter */
572 gma_write16(hw
, port
, GM_TX_PARAM
,
573 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF
) |
574 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF
) |
575 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF
) |
576 TX_BACK_OFF_LIM(TX_BOF_LIM_DEF
));
578 /* serial mode register */
579 reg
= DATA_BLIND_VAL(DATA_BLIND_DEF
) |
580 GM_SMOD_VLAN_ENA
| IPG_DATA_VAL(IPG_DATA_DEF
);
582 if (hw
->dev
[port
]->mtu
> ETH_DATA_LEN
)
583 reg
|= GM_SMOD_JUMBO_ENA
;
585 gma_write16(hw
, port
, GM_SERIAL_MODE
, reg
);
587 /* virtual address for data */
588 gma_set_addr(hw
, port
, GM_SRC_ADDR_2L
, addr
);
590 /* physical address: used for pause frames */
591 gma_set_addr(hw
, port
, GM_SRC_ADDR_1L
, addr
);
593 /* ignore counter overflows */
594 gma_write16(hw
, port
, GM_TX_IRQ_MSK
, 0);
595 gma_write16(hw
, port
, GM_RX_IRQ_MSK
, 0);
596 gma_write16(hw
, port
, GM_TR_IRQ_MSK
, 0);
598 /* Configure Rx MAC FIFO */
599 sky2_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_RST_CLR
);
600 sky2_write16(hw
, SK_REG(port
, RX_GMF_CTRL_T
),
603 /* Flush Rx MAC FIFO on any flow control or error */
604 sky2_write16(hw
, SK_REG(port
, RX_GMF_FL_MSK
), GMR_FS_ANY_ERR
);
606 /* Set threshold to 0xa (64 bytes)
607 * ASF disabled so no need to do WA dev #4.30
609 sky2_write16(hw
, SK_REG(port
, RX_GMF_FL_THR
), RX_GMF_FL_THR_DEF
);
611 /* Configure Tx MAC FIFO */
612 sky2_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_RST_CLR
);
613 sky2_write16(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_OPER_ON
);
615 if (hw
->chip_id
== CHIP_ID_YUKON_EC_U
) {
616 sky2_write8(hw
, SK_REG(port
, RX_GMF_LP_THR
), 768/8);
617 sky2_write8(hw
, SK_REG(port
, RX_GMF_UP_THR
), 1024/8);
618 if (hw
->dev
[port
]->mtu
> ETH_DATA_LEN
) {
619 /* set Tx GMAC FIFO Almost Empty Threshold */
620 sky2_write32(hw
, SK_REG(port
, TX_GMF_AE_THR
), 0x180);
621 /* Disable Store & Forward mode for TX */
622 sky2_write32(hw
, SK_REG(port
, TX_GMF_CTRL_T
), TX_STFW_DIS
);
628 /* Assign Ram Buffer allocation.
629 * start and end are in units of 4k bytes
630 * ram registers are in units of 64bit words
632 static void sky2_ramset(struct sky2_hw
*hw
, u16 q
, u8 startk
, u8 endk
)
636 start
= startk
* 4096/8;
637 end
= (endk
* 4096/8) - 1;
639 sky2_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_RST_CLR
);
640 sky2_write32(hw
, RB_ADDR(q
, RB_START
), start
);
641 sky2_write32(hw
, RB_ADDR(q
, RB_END
), end
);
642 sky2_write32(hw
, RB_ADDR(q
, RB_WP
), start
);
643 sky2_write32(hw
, RB_ADDR(q
, RB_RP
), start
);
645 if (q
== Q_R1
|| q
== Q_R2
) {
646 u32 space
= (endk
- startk
) * 4096/8;
647 u32 tp
= space
- space
/4;
649 /* On receive queue's set the thresholds
650 * give receiver priority when > 3/4 full
651 * send pause when down to 2K
653 sky2_write32(hw
, RB_ADDR(q
, RB_RX_UTHP
), tp
);
654 sky2_write32(hw
, RB_ADDR(q
, RB_RX_LTHP
), space
/2);
657 sky2_write32(hw
, RB_ADDR(q
, RB_RX_UTPP
), tp
);
658 sky2_write32(hw
, RB_ADDR(q
, RB_RX_LTPP
), space
/4);
660 /* Enable store & forward on Tx queue's because
661 * Tx FIFO is only 1K on Yukon
663 sky2_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_ENA_STFWD
);
666 sky2_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_ENA_OP_MD
);
667 sky2_read8(hw
, RB_ADDR(q
, RB_CTRL
));
670 /* Setup Bus Memory Interface */
671 static void sky2_qset(struct sky2_hw
*hw
, u16 q
)
673 sky2_write32(hw
, Q_ADDR(q
, Q_CSR
), BMU_CLR_RESET
);
674 sky2_write32(hw
, Q_ADDR(q
, Q_CSR
), BMU_OPER_INIT
);
675 sky2_write32(hw
, Q_ADDR(q
, Q_CSR
), BMU_FIFO_OP_ON
);
676 sky2_write32(hw
, Q_ADDR(q
, Q_WM
), BMU_WM_DEFAULT
);
679 /* Setup prefetch unit registers. This is the interface between
680 * hardware and driver list elements
682 static void sky2_prefetch_init(struct sky2_hw
*hw
, u32 qaddr
,
685 sky2_write32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_CTRL
), PREF_UNIT_RST_SET
);
686 sky2_write32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_CTRL
), PREF_UNIT_RST_CLR
);
687 sky2_write32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_ADDR_HI
), addr
>> 32);
688 sky2_write32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_ADDR_LO
), (u32
) addr
);
689 sky2_write16(hw
, Y2_QADDR(qaddr
, PREF_UNIT_LAST_IDX
), last
);
690 sky2_write32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_CTRL
), PREF_UNIT_OP_ON
);
692 sky2_read32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_CTRL
));
695 static inline struct sky2_tx_le
*get_tx_le(struct sky2_port
*sky2
)
697 struct sky2_tx_le
*le
= sky2
->tx_le
+ sky2
->tx_prod
;
699 sky2
->tx_prod
= (sky2
->tx_prod
+ 1) % TX_RING_SIZE
;
704 * This is a workaround code taken from SysKonnect sk98lin driver
705 * to deal with chip bug on Yukon EC rev 0 in the wraparound case.
707 static void sky2_put_idx(struct sky2_hw
*hw
, unsigned q
,
708 u16 idx
, u16
*last
, u16 size
)
711 if (is_ec_a1(hw
) && idx
< *last
) {
712 u16 hwget
= sky2_read16(hw
, Y2_QADDR(q
, PREF_UNIT_GET_IDX
));
715 /* Start prefetching again */
716 sky2_write8(hw
, Y2_QADDR(q
, PREF_UNIT_FIFO_WM
), 0xe0);
720 if (hwget
== size
- 1) {
721 /* set watermark to one list element */
722 sky2_write8(hw
, Y2_QADDR(q
, PREF_UNIT_FIFO_WM
), 8);
724 /* set put index to first list element */
725 sky2_write16(hw
, Y2_QADDR(q
, PREF_UNIT_PUT_IDX
), 0);
726 } else /* have hardware go to end of list */
727 sky2_write16(hw
, Y2_QADDR(q
, PREF_UNIT_PUT_IDX
),
731 sky2_write16(hw
, Y2_QADDR(q
, PREF_UNIT_PUT_IDX
), idx
);
738 static inline struct sky2_rx_le
*sky2_next_rx(struct sky2_port
*sky2
)
740 struct sky2_rx_le
*le
= sky2
->rx_le
+ sky2
->rx_put
;
741 sky2
->rx_put
= (sky2
->rx_put
+ 1) % RX_LE_SIZE
;
745 /* Return high part of DMA address (could be 32 or 64 bit) */
746 static inline u32
high32(dma_addr_t a
)
748 return sizeof(a
) > sizeof(u32
) ? (a
>> 16) >> 16 : 0;
751 /* Build description to hardware about buffer */
752 static void sky2_rx_add(struct sky2_port
*sky2
, dma_addr_t map
)
754 struct sky2_rx_le
*le
;
755 u32 hi
= high32(map
);
756 u16 len
= sky2
->rx_bufsize
;
758 if (sky2
->rx_addr64
!= hi
) {
759 le
= sky2_next_rx(sky2
);
760 le
->addr
= cpu_to_le32(hi
);
762 le
->opcode
= OP_ADDR64
| HW_OWNER
;
763 sky2
->rx_addr64
= high32(map
+ len
);
766 le
= sky2_next_rx(sky2
);
767 le
->addr
= cpu_to_le32((u32
) map
);
768 le
->length
= cpu_to_le16(len
);
770 le
->opcode
= OP_PACKET
| HW_OWNER
;
774 /* Tell chip where to start receive checksum.
775 * Actually has two checksums, but set both same to avoid possible byte
778 static void rx_set_checksum(struct sky2_port
*sky2
)
780 struct sky2_rx_le
*le
;
782 le
= sky2_next_rx(sky2
);
783 le
->addr
= (ETH_HLEN
<< 16) | ETH_HLEN
;
785 le
->opcode
= OP_TCPSTART
| HW_OWNER
;
787 sky2_write32(sky2
->hw
,
788 Q_ADDR(rxqaddr
[sky2
->port
], Q_CSR
),
789 sky2
->rx_csum
? BMU_ENA_RX_CHKSUM
: BMU_DIS_RX_CHKSUM
);
794 * The RX Stop command will not work for Yukon-2 if the BMU does not
795 * reach the end of packet and since we can't make sure that we have
796 * incoming data, we must reset the BMU while it is not doing a DMA
797 * transfer. Since it is possible that the RX path is still active,
798 * the RX RAM buffer will be stopped first, so any possible incoming
799 * data will not trigger a DMA. After the RAM buffer is stopped, the
800 * BMU is polled until any DMA in progress is ended and only then it
803 static void sky2_rx_stop(struct sky2_port
*sky2
)
805 struct sky2_hw
*hw
= sky2
->hw
;
806 unsigned rxq
= rxqaddr
[sky2
->port
];
809 /* disable the RAM Buffer receive queue */
810 sky2_write8(hw
, RB_ADDR(rxq
, RB_CTRL
), RB_DIS_OP_MD
);
812 for (i
= 0; i
< 0xffff; i
++)
813 if (sky2_read8(hw
, RB_ADDR(rxq
, Q_RSL
))
814 == sky2_read8(hw
, RB_ADDR(rxq
, Q_RL
)))
817 printk(KERN_WARNING PFX
"%s: receiver stop failed\n",
820 sky2_write32(hw
, Q_ADDR(rxq
, Q_CSR
), BMU_RST_SET
| BMU_FIFO_RST
);
822 /* reset the Rx prefetch unit */
823 sky2_write32(hw
, Y2_QADDR(rxq
, PREF_UNIT_CTRL
), PREF_UNIT_RST_SET
);
826 /* Clean out receive buffer area, assumes receiver hardware stopped */
827 static void sky2_rx_clean(struct sky2_port
*sky2
)
831 memset(sky2
->rx_le
, 0, RX_LE_BYTES
);
832 for (i
= 0; i
< sky2
->rx_pending
; i
++) {
833 struct ring_info
*re
= sky2
->rx_ring
+ i
;
836 pci_unmap_single(sky2
->hw
->pdev
,
837 re
->mapaddr
, sky2
->rx_bufsize
,
845 /* Basic MII support */
846 static int sky2_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
848 struct mii_ioctl_data
*data
= if_mii(ifr
);
849 struct sky2_port
*sky2
= netdev_priv(dev
);
850 struct sky2_hw
*hw
= sky2
->hw
;
851 int err
= -EOPNOTSUPP
;
853 if (!netif_running(dev
))
854 return -ENODEV
; /* Phy still in reset */
858 data
->phy_id
= PHY_ADDR_MARV
;
864 down(&sky2
->phy_sema
);
865 err
= __gm_phy_read(hw
, sky2
->port
, data
->reg_num
& 0x1f, &val
);
873 if (!capable(CAP_NET_ADMIN
))
876 down(&sky2
->phy_sema
);
877 err
= gm_phy_write(hw
, sky2
->port
, data
->reg_num
& 0x1f,
885 #ifdef SKY2_VLAN_TAG_USED
886 static void sky2_vlan_rx_register(struct net_device
*dev
, struct vlan_group
*grp
)
888 struct sky2_port
*sky2
= netdev_priv(dev
);
889 struct sky2_hw
*hw
= sky2
->hw
;
890 u16 port
= sky2
->port
;
892 spin_lock_bh(&sky2
->tx_lock
);
894 sky2_write32(hw
, SK_REG(port
, RX_GMF_CTRL_T
), RX_VLAN_STRIP_ON
);
895 sky2_write32(hw
, SK_REG(port
, TX_GMF_CTRL_T
), TX_VLAN_TAG_ON
);
898 spin_unlock_bh(&sky2
->tx_lock
);
901 static void sky2_vlan_rx_kill_vid(struct net_device
*dev
, unsigned short vid
)
903 struct sky2_port
*sky2
= netdev_priv(dev
);
904 struct sky2_hw
*hw
= sky2
->hw
;
905 u16 port
= sky2
->port
;
907 spin_lock_bh(&sky2
->tx_lock
);
909 sky2_write32(hw
, SK_REG(port
, RX_GMF_CTRL_T
), RX_VLAN_STRIP_OFF
);
910 sky2_write32(hw
, SK_REG(port
, TX_GMF_CTRL_T
), TX_VLAN_TAG_OFF
);
912 sky2
->vlgrp
->vlan_devices
[vid
] = NULL
;
914 spin_unlock_bh(&sky2
->tx_lock
);
919 * It appears the hardware has a bug in the FIFO logic that
920 * cause it to hang if the FIFO gets overrun and the receive buffer
921 * is not aligned. ALso alloc_skb() won't align properly if slab
922 * debugging is enabled.
924 static inline struct sk_buff
*sky2_alloc_skb(unsigned int size
, gfp_t gfp_mask
)
928 skb
= alloc_skb(size
+ RX_SKB_ALIGN
, gfp_mask
);
930 unsigned long p
= (unsigned long) skb
->data
;
932 ((p
+ RX_SKB_ALIGN
- 1) & ~(RX_SKB_ALIGN
- 1)) - p
);
939 * Allocate and setup receiver buffer pool.
940 * In case of 64 bit dma, there are 2X as many list elements
941 * available as ring entries
942 * and need to reserve one list element so we don't wrap around.
944 static int sky2_rx_start(struct sky2_port
*sky2
)
946 struct sky2_hw
*hw
= sky2
->hw
;
947 unsigned rxq
= rxqaddr
[sky2
->port
];
950 sky2
->rx_put
= sky2
->rx_next
= 0;
952 sky2_prefetch_init(hw
, rxq
, sky2
->rx_le_map
, RX_LE_SIZE
- 1);
954 rx_set_checksum(sky2
);
955 for (i
= 0; i
< sky2
->rx_pending
; i
++) {
956 struct ring_info
*re
= sky2
->rx_ring
+ i
;
958 re
->skb
= sky2_alloc_skb(sky2
->rx_bufsize
, GFP_KERNEL
);
962 re
->mapaddr
= pci_map_single(hw
->pdev
, re
->skb
->data
,
963 sky2
->rx_bufsize
, PCI_DMA_FROMDEVICE
);
964 sky2_rx_add(sky2
, re
->mapaddr
);
967 /* Tell chip about available buffers */
968 sky2_write16(hw
, Y2_QADDR(rxq
, PREF_UNIT_PUT_IDX
), sky2
->rx_put
);
969 sky2
->rx_last_put
= sky2_read16(hw
, Y2_QADDR(rxq
, PREF_UNIT_PUT_IDX
));
976 /* Bring up network interface. */
977 static int sky2_up(struct net_device
*dev
)
979 struct sky2_port
*sky2
= netdev_priv(dev
);
980 struct sky2_hw
*hw
= sky2
->hw
;
981 unsigned port
= sky2
->port
;
982 u32 ramsize
, rxspace
;
985 if (netif_msg_ifup(sky2
))
986 printk(KERN_INFO PFX
"%s: enabling interface\n", dev
->name
);
988 /* must be power of 2 */
989 sky2
->tx_le
= pci_alloc_consistent(hw
->pdev
,
991 sizeof(struct sky2_tx_le
),
996 sky2
->tx_ring
= kcalloc(TX_RING_SIZE
, sizeof(struct tx_ring_info
),
1000 sky2
->tx_prod
= sky2
->tx_cons
= 0;
1002 sky2
->rx_le
= pci_alloc_consistent(hw
->pdev
, RX_LE_BYTES
,
1006 memset(sky2
->rx_le
, 0, RX_LE_BYTES
);
1008 sky2
->rx_ring
= kcalloc(sky2
->rx_pending
, sizeof(struct ring_info
),
1013 sky2_mac_init(hw
, port
);
1015 /* Determine available ram buffer space (in 4K blocks).
1016 * Note: not sure about the FE setting below yet
1018 if (hw
->chip_id
== CHIP_ID_YUKON_FE
)
1021 ramsize
= sky2_read8(hw
, B2_E_0
);
1023 /* Give transmitter one third (rounded up) */
1024 rxspace
= ramsize
- (ramsize
+ 2) / 3;
1026 sky2_ramset(hw
, rxqaddr
[port
], 0, rxspace
);
1027 sky2_ramset(hw
, txqaddr
[port
], rxspace
, ramsize
);
1029 /* Make sure SyncQ is disabled */
1030 sky2_write8(hw
, RB_ADDR(port
== 0 ? Q_XS1
: Q_XS2
, RB_CTRL
),
1033 sky2_qset(hw
, txqaddr
[port
]);
1034 if (hw
->chip_id
== CHIP_ID_YUKON_EC_U
)
1035 sky2_write16(hw
, Q_ADDR(txqaddr
[port
], Q_AL
), 0x1a0);
1038 sky2_prefetch_init(hw
, txqaddr
[port
], sky2
->tx_le_map
,
1041 err
= sky2_rx_start(sky2
);
1045 /* Enable interrupts from phy/mac for port */
1046 hw
->intr_mask
|= (port
== 0) ? Y2_IS_PORT_1
: Y2_IS_PORT_2
;
1047 sky2_write32(hw
, B0_IMSK
, hw
->intr_mask
);
1052 pci_free_consistent(hw
->pdev
, RX_LE_BYTES
,
1053 sky2
->rx_le
, sky2
->rx_le_map
);
1057 pci_free_consistent(hw
->pdev
,
1058 TX_RING_SIZE
* sizeof(struct sky2_tx_le
),
1059 sky2
->tx_le
, sky2
->tx_le_map
);
1062 kfree(sky2
->tx_ring
);
1063 kfree(sky2
->rx_ring
);
1065 sky2
->tx_ring
= NULL
;
1066 sky2
->rx_ring
= NULL
;
1070 /* Modular subtraction in ring */
1071 static inline int tx_dist(unsigned tail
, unsigned head
)
1073 return (head
- tail
) % TX_RING_SIZE
;
1076 /* Number of list elements available for next tx */
1077 static inline int tx_avail(const struct sky2_port
*sky2
)
1079 return sky2
->tx_pending
- tx_dist(sky2
->tx_cons
, sky2
->tx_prod
);
1082 /* Estimate of number of transmit list elements required */
1083 static unsigned tx_le_req(const struct sk_buff
*skb
)
1087 count
= sizeof(dma_addr_t
) / sizeof(u32
);
1088 count
+= skb_shinfo(skb
)->nr_frags
* count
;
1090 if (skb_shinfo(skb
)->tso_size
)
1093 if (skb
->ip_summed
== CHECKSUM_HW
)
1100 * Put one packet in ring for transmit.
1101 * A single packet can generate multiple list elements, and
1102 * the number of ring elements will probably be less than the number
1103 * of list elements used.
1105 * No BH disabling for tx_lock here (like tg3)
1107 static int sky2_xmit_frame(struct sk_buff
*skb
, struct net_device
*dev
)
1109 struct sky2_port
*sky2
= netdev_priv(dev
);
1110 struct sky2_hw
*hw
= sky2
->hw
;
1111 struct sky2_tx_le
*le
= NULL
;
1112 struct tx_ring_info
*re
;
1119 /* No BH disabling for tx_lock here. We are running in BH disabled
1120 * context and TX reclaim runs via poll inside of a software
1121 * interrupt, and no related locks in IRQ processing.
1123 if (!spin_trylock(&sky2
->tx_lock
))
1124 return NETDEV_TX_LOCKED
;
1126 if (unlikely(tx_avail(sky2
) < tx_le_req(skb
))) {
1127 /* There is a known but harmless race with lockless tx
1128 * and netif_stop_queue.
1130 if (!netif_queue_stopped(dev
)) {
1131 netif_stop_queue(dev
);
1132 if (net_ratelimit())
1133 printk(KERN_WARNING PFX
"%s: ring full when queue awake!\n",
1136 spin_unlock(&sky2
->tx_lock
);
1138 return NETDEV_TX_BUSY
;
1141 if (unlikely(netif_msg_tx_queued(sky2
)))
1142 printk(KERN_DEBUG
"%s: tx queued, slot %u, len %d\n",
1143 dev
->name
, sky2
->tx_prod
, skb
->len
);
1145 len
= skb_headlen(skb
);
1146 mapping
= pci_map_single(hw
->pdev
, skb
->data
, len
, PCI_DMA_TODEVICE
);
1147 addr64
= high32(mapping
);
1149 re
= sky2
->tx_ring
+ sky2
->tx_prod
;
1151 /* Send high bits if changed or crosses boundary */
1152 if (addr64
!= sky2
->tx_addr64
|| high32(mapping
+ len
) != sky2
->tx_addr64
) {
1153 le
= get_tx_le(sky2
);
1154 le
->tx
.addr
= cpu_to_le32(addr64
);
1156 le
->opcode
= OP_ADDR64
| HW_OWNER
;
1157 sky2
->tx_addr64
= high32(mapping
+ len
);
1160 /* Check for TCP Segmentation Offload */
1161 mss
= skb_shinfo(skb
)->tso_size
;
1163 /* just drop the packet if non-linear expansion fails */
1164 if (skb_header_cloned(skb
) &&
1165 pskb_expand_head(skb
, 0, 0, GFP_ATOMIC
)) {
1166 dev_kfree_skb_any(skb
);
1170 mss
+= ((skb
->h
.th
->doff
- 5) * 4); /* TCP options */
1171 mss
+= (skb
->nh
.iph
->ihl
* 4) + sizeof(struct tcphdr
);
1175 if (mss
!= sky2
->tx_last_mss
) {
1176 le
= get_tx_le(sky2
);
1177 le
->tx
.tso
.size
= cpu_to_le16(mss
);
1178 le
->tx
.tso
.rsvd
= 0;
1179 le
->opcode
= OP_LRGLEN
| HW_OWNER
;
1181 sky2
->tx_last_mss
= mss
;
1185 #ifdef SKY2_VLAN_TAG_USED
1186 /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */
1187 if (sky2
->vlgrp
&& vlan_tx_tag_present(skb
)) {
1189 le
= get_tx_le(sky2
);
1191 le
->opcode
= OP_VLAN
|HW_OWNER
;
1194 le
->opcode
|= OP_VLAN
;
1195 le
->length
= cpu_to_be16(vlan_tx_tag_get(skb
));
1200 /* Handle TCP checksum offload */
1201 if (skb
->ip_summed
== CHECKSUM_HW
) {
1202 u16 hdr
= skb
->h
.raw
- skb
->data
;
1203 u16 offset
= hdr
+ skb
->csum
;
1205 ctrl
= CALSUM
| WR_SUM
| INIT_SUM
| LOCK_SUM
;
1206 if (skb
->nh
.iph
->protocol
== IPPROTO_UDP
)
1209 le
= get_tx_le(sky2
);
1210 le
->tx
.csum
.start
= cpu_to_le16(hdr
);
1211 le
->tx
.csum
.offset
= cpu_to_le16(offset
);
1212 le
->length
= 0; /* initial checksum value */
1213 le
->ctrl
= 1; /* one packet */
1214 le
->opcode
= OP_TCPLISW
| HW_OWNER
;
1217 le
= get_tx_le(sky2
);
1218 le
->tx
.addr
= cpu_to_le32((u32
) mapping
);
1219 le
->length
= cpu_to_le16(len
);
1221 le
->opcode
= mss
? (OP_LARGESEND
| HW_OWNER
) : (OP_PACKET
| HW_OWNER
);
1223 /* Record the transmit mapping info */
1225 pci_unmap_addr_set(re
, mapaddr
, mapping
);
1227 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
1228 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[i
];
1229 struct tx_ring_info
*fre
;
1231 mapping
= pci_map_page(hw
->pdev
, frag
->page
, frag
->page_offset
,
1232 frag
->size
, PCI_DMA_TODEVICE
);
1233 addr64
= high32(mapping
);
1234 if (addr64
!= sky2
->tx_addr64
) {
1235 le
= get_tx_le(sky2
);
1236 le
->tx
.addr
= cpu_to_le32(addr64
);
1238 le
->opcode
= OP_ADDR64
| HW_OWNER
;
1239 sky2
->tx_addr64
= addr64
;
1242 le
= get_tx_le(sky2
);
1243 le
->tx
.addr
= cpu_to_le32((u32
) mapping
);
1244 le
->length
= cpu_to_le16(frag
->size
);
1246 le
->opcode
= OP_BUFFER
| HW_OWNER
;
1249 + ((re
- sky2
->tx_ring
) + i
+ 1) % TX_RING_SIZE
;
1250 pci_unmap_addr_set(fre
, mapaddr
, mapping
);
1253 re
->idx
= sky2
->tx_prod
;
1256 sky2_put_idx(hw
, txqaddr
[sky2
->port
], sky2
->tx_prod
,
1257 &sky2
->tx_last_put
, TX_RING_SIZE
);
1259 if (tx_avail(sky2
) <= MAX_SKB_TX_LE
)
1260 netif_stop_queue(dev
);
1263 spin_unlock(&sky2
->tx_lock
);
1265 dev
->trans_start
= jiffies
;
1266 return NETDEV_TX_OK
;
1270 * Free ring elements from starting at tx_cons until "done"
1272 * NB: the hardware will tell us about partial completion of multi-part
1273 * buffers; these are deferred until completion.
1275 static void sky2_tx_complete(struct sky2_port
*sky2
, u16 done
)
1277 struct net_device
*dev
= sky2
->netdev
;
1278 struct pci_dev
*pdev
= sky2
->hw
->pdev
;
1282 BUG_ON(done
>= TX_RING_SIZE
);
1284 if (unlikely(netif_msg_tx_done(sky2
)))
1285 printk(KERN_DEBUG
"%s: tx done, up to %u\n",
1288 for (put
= sky2
->tx_cons
; put
!= done
; put
= nxt
) {
1289 struct tx_ring_info
*re
= sky2
->tx_ring
+ put
;
1290 struct sk_buff
*skb
= re
->skb
;
1293 BUG_ON(nxt
>= TX_RING_SIZE
);
1294 prefetch(sky2
->tx_ring
+ nxt
);
1296 /* Check for partial status */
1297 if (tx_dist(put
, done
) < tx_dist(put
, nxt
))
1301 pci_unmap_single(pdev
, pci_unmap_addr(re
, mapaddr
),
1302 skb_headlen(skb
), PCI_DMA_TODEVICE
);
1304 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
1305 struct tx_ring_info
*fre
;
1306 fre
= sky2
->tx_ring
+ (put
+ i
+ 1) % TX_RING_SIZE
;
1307 pci_unmap_page(pdev
, pci_unmap_addr(fre
, mapaddr
),
1308 skb_shinfo(skb
)->frags
[i
].size
,
1312 dev_kfree_skb_any(skb
);
1315 sky2
->tx_cons
= put
;
1316 if (netif_queue_stopped(dev
) && tx_avail(sky2
) > MAX_SKB_TX_LE
)
1317 netif_wake_queue(dev
);
1320 /* Cleanup all untransmitted buffers, assume transmitter not running */
1321 static void sky2_tx_clean(struct sky2_port
*sky2
)
1323 spin_lock_bh(&sky2
->tx_lock
);
1324 sky2_tx_complete(sky2
, sky2
->tx_prod
);
1325 spin_unlock_bh(&sky2
->tx_lock
);
1328 /* Network shutdown */
1329 static int sky2_down(struct net_device
*dev
)
1331 struct sky2_port
*sky2
= netdev_priv(dev
);
1332 struct sky2_hw
*hw
= sky2
->hw
;
1333 unsigned port
= sky2
->port
;
1336 /* Never really got started! */
1340 if (netif_msg_ifdown(sky2
))
1341 printk(KERN_INFO PFX
"%s: disabling interface\n", dev
->name
);
1343 /* Stop more packets from being queued */
1344 netif_stop_queue(dev
);
1346 /* Disable port IRQ */
1347 local_irq_disable();
1348 hw
->intr_mask
&= ~((sky2
->port
== 0) ? Y2_IS_IRQ_PHY1
: Y2_IS_IRQ_PHY2
);
1349 sky2_write32(hw
, B0_IMSK
, hw
->intr_mask
);
1352 flush_scheduled_work();
1354 sky2_phy_reset(hw
, port
);
1356 /* Stop transmitter */
1357 sky2_write32(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
), BMU_STOP
);
1358 sky2_read32(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
));
1360 sky2_write32(hw
, RB_ADDR(txqaddr
[port
], RB_CTRL
),
1361 RB_RST_SET
| RB_DIS_OP_MD
);
1363 ctrl
= gma_read16(hw
, port
, GM_GP_CTRL
);
1364 ctrl
&= ~(GM_GPCR_TX_ENA
| GM_GPCR_RX_ENA
);
1365 gma_write16(hw
, port
, GM_GP_CTRL
, ctrl
);
1367 sky2_write8(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_SET
);
1369 /* Workaround shared GMAC reset */
1370 if (!(hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
== 0
1371 && port
== 0 && hw
->dev
[1] && netif_running(hw
->dev
[1])))
1372 sky2_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_RST_SET
);
1374 /* Disable Force Sync bit and Enable Alloc bit */
1375 sky2_write8(hw
, SK_REG(port
, TXA_CTRL
),
1376 TXA_DIS_FSYNC
| TXA_DIS_ALLOC
| TXA_STOP_RC
);
1378 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
1379 sky2_write32(hw
, SK_REG(port
, TXA_ITI_INI
), 0L);
1380 sky2_write32(hw
, SK_REG(port
, TXA_LIM_INI
), 0L);
1382 /* Reset the PCI FIFO of the async Tx queue */
1383 sky2_write32(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
),
1384 BMU_RST_SET
| BMU_FIFO_RST
);
1386 /* Reset the Tx prefetch units */
1387 sky2_write32(hw
, Y2_QADDR(txqaddr
[port
], PREF_UNIT_CTRL
),
1390 sky2_write32(hw
, RB_ADDR(txqaddr
[port
], RB_CTRL
), RB_RST_SET
);
1394 sky2_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_RST_SET
);
1395 sky2_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_RST_SET
);
1397 /* turn off LED's */
1398 sky2_write16(hw
, B0_Y2LED
, LED_STAT_OFF
);
1400 synchronize_irq(hw
->pdev
->irq
);
1402 sky2_tx_clean(sky2
);
1403 sky2_rx_clean(sky2
);
1405 pci_free_consistent(hw
->pdev
, RX_LE_BYTES
,
1406 sky2
->rx_le
, sky2
->rx_le_map
);
1407 kfree(sky2
->rx_ring
);
1409 pci_free_consistent(hw
->pdev
,
1410 TX_RING_SIZE
* sizeof(struct sky2_tx_le
),
1411 sky2
->tx_le
, sky2
->tx_le_map
);
1412 kfree(sky2
->tx_ring
);
1417 sky2
->rx_ring
= NULL
;
1418 sky2
->tx_ring
= NULL
;
1423 static u16
sky2_phy_speed(const struct sky2_hw
*hw
, u16 aux
)
1428 if (hw
->chip_id
== CHIP_ID_YUKON_FE
)
1429 return (aux
& PHY_M_PS_SPEED_100
) ? SPEED_100
: SPEED_10
;
1431 switch (aux
& PHY_M_PS_SPEED_MSK
) {
1432 case PHY_M_PS_SPEED_1000
:
1434 case PHY_M_PS_SPEED_100
:
1441 static void sky2_link_up(struct sky2_port
*sky2
)
1443 struct sky2_hw
*hw
= sky2
->hw
;
1444 unsigned port
= sky2
->port
;
1447 /* Enable Transmit FIFO Underrun */
1448 sky2_write8(hw
, SK_REG(port
, GMAC_IRQ_MSK
), GMAC_DEF_MSK
);
1450 reg
= gma_read16(hw
, port
, GM_GP_CTRL
);
1451 if (sky2
->duplex
== DUPLEX_FULL
|| sky2
->autoneg
== AUTONEG_ENABLE
)
1452 reg
|= GM_GPCR_DUP_FULL
;
1455 reg
|= GM_GPCR_RX_ENA
| GM_GPCR_TX_ENA
;
1456 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
1457 gma_read16(hw
, port
, GM_GP_CTRL
);
1459 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_DEF_MSK
);
1461 netif_carrier_on(sky2
->netdev
);
1462 netif_wake_queue(sky2
->netdev
);
1464 /* Turn on link LED */
1465 sky2_write8(hw
, SK_REG(port
, LNK_LED_REG
),
1466 LINKLED_ON
| LINKLED_BLINK_OFF
| LINKLED_LINKSYNC_OFF
);
1468 if (hw
->chip_id
== CHIP_ID_YUKON_XL
) {
1469 u16 pg
= gm_phy_read(hw
, port
, PHY_MARV_EXT_ADR
);
1471 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 3);
1472 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
1473 PHY_M_LEDC_INIT_CTRL(sky2
->speed
==
1475 PHY_M_LEDC_STA1_CTRL(sky2
->speed
==
1476 SPEED_100
? 7 : 0) |
1477 PHY_M_LEDC_STA0_CTRL(sky2
->speed
==
1478 SPEED_1000
? 7 : 0));
1479 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, pg
);
1482 if (netif_msg_link(sky2
))
1483 printk(KERN_INFO PFX
1484 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
1485 sky2
->netdev
->name
, sky2
->speed
,
1486 sky2
->duplex
== DUPLEX_FULL
? "full" : "half",
1487 (sky2
->tx_pause
&& sky2
->rx_pause
) ? "both" :
1488 sky2
->tx_pause
? "tx" : sky2
->rx_pause
? "rx" : "none");
1491 static void sky2_link_down(struct sky2_port
*sky2
)
1493 struct sky2_hw
*hw
= sky2
->hw
;
1494 unsigned port
= sky2
->port
;
1497 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, 0);
1499 reg
= gma_read16(hw
, port
, GM_GP_CTRL
);
1500 reg
&= ~(GM_GPCR_RX_ENA
| GM_GPCR_TX_ENA
);
1501 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
1502 gma_read16(hw
, port
, GM_GP_CTRL
); /* PCI post */
1504 if (sky2
->rx_pause
&& !sky2
->tx_pause
) {
1505 /* restore Asymmetric Pause bit */
1506 gm_phy_write(hw
, port
, PHY_MARV_AUNE_ADV
,
1507 gm_phy_read(hw
, port
, PHY_MARV_AUNE_ADV
)
1511 netif_carrier_off(sky2
->netdev
);
1512 netif_stop_queue(sky2
->netdev
);
1514 /* Turn on link LED */
1515 sky2_write8(hw
, SK_REG(port
, LNK_LED_REG
), LINKLED_OFF
);
1517 if (netif_msg_link(sky2
))
1518 printk(KERN_INFO PFX
"%s: Link is down.\n", sky2
->netdev
->name
);
1519 sky2_phy_init(hw
, port
);
1522 static int sky2_autoneg_done(struct sky2_port
*sky2
, u16 aux
)
1524 struct sky2_hw
*hw
= sky2
->hw
;
1525 unsigned port
= sky2
->port
;
1528 lpa
= gm_phy_read(hw
, port
, PHY_MARV_AUNE_LP
);
1530 if (lpa
& PHY_M_AN_RF
) {
1531 printk(KERN_ERR PFX
"%s: remote fault", sky2
->netdev
->name
);
1535 if (hw
->chip_id
!= CHIP_ID_YUKON_FE
&&
1536 gm_phy_read(hw
, port
, PHY_MARV_1000T_STAT
) & PHY_B_1000S_MSF
) {
1537 printk(KERN_ERR PFX
"%s: master/slave fault",
1538 sky2
->netdev
->name
);
1542 if (!(aux
& PHY_M_PS_SPDUP_RES
)) {
1543 printk(KERN_ERR PFX
"%s: speed/duplex mismatch",
1544 sky2
->netdev
->name
);
1548 sky2
->duplex
= (aux
& PHY_M_PS_FULL_DUP
) ? DUPLEX_FULL
: DUPLEX_HALF
;
1550 sky2
->speed
= sky2_phy_speed(hw
, aux
);
1552 /* Pause bits are offset (9..8) */
1553 if (hw
->chip_id
== CHIP_ID_YUKON_XL
)
1556 sky2
->rx_pause
= (aux
& PHY_M_PS_RX_P_EN
) != 0;
1557 sky2
->tx_pause
= (aux
& PHY_M_PS_TX_P_EN
) != 0;
1559 if ((sky2
->tx_pause
|| sky2
->rx_pause
)
1560 && !(sky2
->speed
< SPEED_1000
&& sky2
->duplex
== DUPLEX_HALF
))
1561 sky2_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_ON
);
1563 sky2_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_OFF
);
1569 * Interrupt from PHY are handled outside of interrupt context
1570 * because accessing phy registers requires spin wait which might
1571 * cause excess interrupt latency.
1573 static void sky2_phy_task(void *arg
)
1575 struct sky2_port
*sky2
= arg
;
1576 struct sky2_hw
*hw
= sky2
->hw
;
1577 u16 istatus
, phystat
;
1579 down(&sky2
->phy_sema
);
1580 istatus
= gm_phy_read(hw
, sky2
->port
, PHY_MARV_INT_STAT
);
1581 phystat
= gm_phy_read(hw
, sky2
->port
, PHY_MARV_PHY_STAT
);
1583 if (netif_msg_intr(sky2
))
1584 printk(KERN_INFO PFX
"%s: phy interrupt status 0x%x 0x%x\n",
1585 sky2
->netdev
->name
, istatus
, phystat
);
1587 if (istatus
& PHY_M_IS_AN_COMPL
) {
1588 if (sky2_autoneg_done(sky2
, phystat
) == 0)
1593 if (istatus
& PHY_M_IS_LSP_CHANGE
)
1594 sky2
->speed
= sky2_phy_speed(hw
, phystat
);
1596 if (istatus
& PHY_M_IS_DUP_CHANGE
)
1598 (phystat
& PHY_M_PS_FULL_DUP
) ? DUPLEX_FULL
: DUPLEX_HALF
;
1600 if (istatus
& PHY_M_IS_LST_CHANGE
) {
1601 if (phystat
& PHY_M_PS_LINK_UP
)
1604 sky2_link_down(sky2
);
1607 up(&sky2
->phy_sema
);
1609 local_irq_disable();
1610 hw
->intr_mask
|= (sky2
->port
== 0) ? Y2_IS_IRQ_PHY1
: Y2_IS_IRQ_PHY2
;
1611 sky2_write32(hw
, B0_IMSK
, hw
->intr_mask
);
1616 /* Transmit timeout is only called if we are running, carries is up
1617 * and tx queue is full (stopped).
1619 static void sky2_tx_timeout(struct net_device
*dev
)
1621 struct sky2_port
*sky2
= netdev_priv(dev
);
1622 struct sky2_hw
*hw
= sky2
->hw
;
1623 unsigned txq
= txqaddr
[sky2
->port
];
1626 /* Maybe we just missed an status interrupt */
1627 spin_lock(&sky2
->tx_lock
);
1628 ridx
= sky2_read16(hw
,
1629 sky2
->port
== 0 ? STAT_TXA1_RIDX
: STAT_TXA2_RIDX
);
1630 sky2_tx_complete(sky2
, ridx
);
1631 spin_unlock(&sky2
->tx_lock
);
1633 if (!netif_queue_stopped(dev
)) {
1634 if (net_ratelimit())
1635 pr_info(PFX
"transmit interrupt missed? recovered\n");
1639 if (netif_msg_timer(sky2
))
1640 printk(KERN_ERR PFX
"%s: tx timeout\n", dev
->name
);
1642 sky2_write32(hw
, Q_ADDR(txq
, Q_CSR
), BMU_STOP
);
1643 sky2_write32(hw
, Y2_QADDR(txq
, PREF_UNIT_CTRL
), PREF_UNIT_RST_SET
);
1645 sky2_tx_clean(sky2
);
1648 sky2_prefetch_init(hw
, txq
, sky2
->tx_le_map
, TX_RING_SIZE
- 1);
1652 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
1653 /* Want receive buffer size to be multiple of 64 bits, and incl room for vlan */
1654 static inline unsigned sky2_buf_size(int mtu
)
1656 return roundup(mtu
+ ETH_HLEN
+ 4, 8);
1659 static int sky2_change_mtu(struct net_device
*dev
, int new_mtu
)
1661 struct sky2_port
*sky2
= netdev_priv(dev
);
1662 struct sky2_hw
*hw
= sky2
->hw
;
1666 if (new_mtu
< ETH_ZLEN
|| new_mtu
> ETH_JUMBO_MTU
)
1669 if (hw
->chip_id
== CHIP_ID_YUKON_EC_U
&& new_mtu
> ETH_DATA_LEN
)
1672 if (!netif_running(dev
)) {
1677 sky2_write32(hw
, B0_IMSK
, 0);
1679 dev
->trans_start
= jiffies
; /* prevent tx timeout */
1680 netif_stop_queue(dev
);
1681 netif_poll_disable(hw
->dev
[0]);
1683 ctl
= gma_read16(hw
, sky2
->port
, GM_GP_CTRL
);
1684 gma_write16(hw
, sky2
->port
, GM_GP_CTRL
, ctl
& ~GM_GPCR_RX_ENA
);
1686 sky2_rx_clean(sky2
);
1689 sky2
->rx_bufsize
= sky2_buf_size(new_mtu
);
1690 mode
= DATA_BLIND_VAL(DATA_BLIND_DEF
) |
1691 GM_SMOD_VLAN_ENA
| IPG_DATA_VAL(IPG_DATA_DEF
);
1693 if (dev
->mtu
> ETH_DATA_LEN
)
1694 mode
|= GM_SMOD_JUMBO_ENA
;
1696 gma_write16(hw
, sky2
->port
, GM_SERIAL_MODE
, mode
);
1698 sky2_write8(hw
, RB_ADDR(rxqaddr
[sky2
->port
], RB_CTRL
), RB_ENA_OP_MD
);
1700 err
= sky2_rx_start(sky2
);
1701 sky2_write32(hw
, B0_IMSK
, hw
->intr_mask
);
1706 gma_write16(hw
, sky2
->port
, GM_GP_CTRL
, ctl
);
1708 netif_poll_enable(hw
->dev
[0]);
1709 netif_wake_queue(dev
);
1716 * Receive one packet.
1717 * For small packets or errors, just reuse existing skb.
1718 * For larger packets, get new buffer.
1720 static struct sk_buff
*sky2_receive(struct sky2_port
*sky2
,
1721 u16 length
, u32 status
)
1723 struct ring_info
*re
= sky2
->rx_ring
+ sky2
->rx_next
;
1724 struct sk_buff
*skb
= NULL
;
1726 if (unlikely(netif_msg_rx_status(sky2
)))
1727 printk(KERN_DEBUG PFX
"%s: rx slot %u status 0x%x len %d\n",
1728 sky2
->netdev
->name
, sky2
->rx_next
, status
, length
);
1730 sky2
->rx_next
= (sky2
->rx_next
+ 1) % sky2
->rx_pending
;
1731 prefetch(sky2
->rx_ring
+ sky2
->rx_next
);
1733 if (status
& GMR_FS_ANY_ERR
)
1736 if (!(status
& GMR_FS_RX_OK
))
1739 if ((status
>> 16) != length
|| length
> sky2
->rx_bufsize
)
1742 if (length
< copybreak
) {
1743 skb
= alloc_skb(length
+ 2, GFP_ATOMIC
);
1747 skb_reserve(skb
, 2);
1748 pci_dma_sync_single_for_cpu(sky2
->hw
->pdev
, re
->mapaddr
,
1749 length
, PCI_DMA_FROMDEVICE
);
1750 memcpy(skb
->data
, re
->skb
->data
, length
);
1751 skb
->ip_summed
= re
->skb
->ip_summed
;
1752 skb
->csum
= re
->skb
->csum
;
1753 pci_dma_sync_single_for_device(sky2
->hw
->pdev
, re
->mapaddr
,
1754 length
, PCI_DMA_FROMDEVICE
);
1756 struct sk_buff
*nskb
;
1758 nskb
= sky2_alloc_skb(sky2
->rx_bufsize
, GFP_ATOMIC
);
1764 pci_unmap_single(sky2
->hw
->pdev
, re
->mapaddr
,
1765 sky2
->rx_bufsize
, PCI_DMA_FROMDEVICE
);
1766 prefetch(skb
->data
);
1768 re
->mapaddr
= pci_map_single(sky2
->hw
->pdev
, nskb
->data
,
1769 sky2
->rx_bufsize
, PCI_DMA_FROMDEVICE
);
1772 skb_put(skb
, length
);
1774 re
->skb
->ip_summed
= CHECKSUM_NONE
;
1775 sky2_rx_add(sky2
, re
->mapaddr
);
1777 /* Tell receiver about new buffers. */
1778 sky2_put_idx(sky2
->hw
, rxqaddr
[sky2
->port
], sky2
->rx_put
,
1779 &sky2
->rx_last_put
, RX_LE_SIZE
);
1784 ++sky2
->net_stats
.rx_over_errors
;
1788 ++sky2
->net_stats
.rx_errors
;
1790 if (netif_msg_rx_err(sky2
) && net_ratelimit())
1791 printk(KERN_INFO PFX
"%s: rx error, status 0x%x length %d\n",
1792 sky2
->netdev
->name
, status
, length
);
1794 if (status
& (GMR_FS_LONG_ERR
| GMR_FS_UN_SIZE
))
1795 sky2
->net_stats
.rx_length_errors
++;
1796 if (status
& GMR_FS_FRAGMENT
)
1797 sky2
->net_stats
.rx_frame_errors
++;
1798 if (status
& GMR_FS_CRC_ERR
)
1799 sky2
->net_stats
.rx_crc_errors
++;
1800 if (status
& GMR_FS_RX_FF_OV
)
1801 sky2
->net_stats
.rx_fifo_errors
++;
1807 * Check for transmit complete
1809 #define TX_NO_STATUS 0xffff
1811 static void sky2_tx_check(struct sky2_hw
*hw
, int port
, u16 last
)
1813 if (last
!= TX_NO_STATUS
) {
1814 struct net_device
*dev
= hw
->dev
[port
];
1815 if (dev
&& netif_running(dev
)) {
1816 struct sky2_port
*sky2
= netdev_priv(dev
);
1818 spin_lock(&sky2
->tx_lock
);
1819 sky2_tx_complete(sky2
, last
);
1820 spin_unlock(&sky2
->tx_lock
);
1826 * Both ports share the same status interrupt, therefore there is only
1829 static int sky2_poll(struct net_device
*dev0
, int *budget
)
1831 struct sky2_hw
*hw
= ((struct sky2_port
*) netdev_priv(dev0
))->hw
;
1832 unsigned int to_do
= min(dev0
->quota
, *budget
);
1833 unsigned int work_done
= 0;
1835 u16 tx_done
[2] = { TX_NO_STATUS
, TX_NO_STATUS
};
1837 hwidx
= sky2_read16(hw
, STAT_PUT_IDX
);
1838 BUG_ON(hwidx
>= STATUS_RING_SIZE
);
1841 while (hwidx
!= hw
->st_idx
) {
1842 struct sky2_status_le
*le
= hw
->st_le
+ hw
->st_idx
;
1843 struct net_device
*dev
;
1844 struct sky2_port
*sky2
;
1845 struct sk_buff
*skb
;
1849 le
= hw
->st_le
+ hw
->st_idx
;
1850 hw
->st_idx
= (hw
->st_idx
+ 1) % STATUS_RING_SIZE
;
1851 prefetch(hw
->st_le
+ hw
->st_idx
);
1853 BUG_ON(le
->link
>= 2);
1854 dev
= hw
->dev
[le
->link
];
1855 if (dev
== NULL
|| !netif_running(dev
))
1858 sky2
= netdev_priv(dev
);
1859 status
= le32_to_cpu(le
->status
);
1860 length
= le16_to_cpu(le
->length
);
1862 switch (le
->opcode
& ~HW_OWNER
) {
1864 skb
= sky2_receive(sky2
, length
, status
);
1869 skb
->protocol
= eth_type_trans(skb
, dev
);
1870 dev
->last_rx
= jiffies
;
1872 #ifdef SKY2_VLAN_TAG_USED
1873 if (sky2
->vlgrp
&& (status
& GMR_FS_VLAN
)) {
1874 vlan_hwaccel_receive_skb(skb
,
1876 be16_to_cpu(sky2
->rx_tag
));
1879 netif_receive_skb(skb
);
1881 if (++work_done
>= to_do
)
1885 #ifdef SKY2_VLAN_TAG_USED
1887 sky2
->rx_tag
= length
;
1891 sky2
->rx_tag
= length
;
1895 skb
= sky2
->rx_ring
[sky2
->rx_next
].skb
;
1896 skb
->ip_summed
= CHECKSUM_HW
;
1897 skb
->csum
= le16_to_cpu(status
);
1901 /* TX index reports status for both ports */
1902 tx_done
[0] = status
& 0xffff;
1903 tx_done
[1] = ((status
>> 24) & 0xff)
1904 | (u16
)(length
& 0xf) << 8;
1908 if (net_ratelimit())
1909 printk(KERN_WARNING PFX
1910 "unknown status opcode 0x%x\n", le
->opcode
);
1916 sky2_write32(hw
, STAT_CTRL
, SC_STAT_CLR_IRQ
);
1918 sky2_tx_check(hw
, 0, tx_done
[0]);
1919 sky2_tx_check(hw
, 1, tx_done
[1]);
1921 if (sky2_read16(hw
, STAT_PUT_IDX
) == hw
->st_idx
) {
1922 /* need to restart TX timer */
1924 sky2_write8(hw
, STAT_TX_TIMER_CTRL
, TIM_STOP
);
1925 sky2_write8(hw
, STAT_TX_TIMER_CTRL
, TIM_START
);
1928 netif_rx_complete(dev0
);
1929 hw
->intr_mask
|= Y2_IS_STAT_BMU
;
1930 sky2_write32(hw
, B0_IMSK
, hw
->intr_mask
);
1933 *budget
-= work_done
;
1934 dev0
->quota
-= work_done
;
1939 static void sky2_hw_error(struct sky2_hw
*hw
, unsigned port
, u32 status
)
1941 struct net_device
*dev
= hw
->dev
[port
];
1943 if (net_ratelimit())
1944 printk(KERN_INFO PFX
"%s: hw error interrupt status 0x%x\n",
1947 if (status
& Y2_IS_PAR_RD1
) {
1948 if (net_ratelimit())
1949 printk(KERN_ERR PFX
"%s: ram data read parity error\n",
1952 sky2_write16(hw
, RAM_BUFFER(port
, B3_RI_CTRL
), RI_CLR_RD_PERR
);
1955 if (status
& Y2_IS_PAR_WR1
) {
1956 if (net_ratelimit())
1957 printk(KERN_ERR PFX
"%s: ram data write parity error\n",
1960 sky2_write16(hw
, RAM_BUFFER(port
, B3_RI_CTRL
), RI_CLR_WR_PERR
);
1963 if (status
& Y2_IS_PAR_MAC1
) {
1964 if (net_ratelimit())
1965 printk(KERN_ERR PFX
"%s: MAC parity error\n", dev
->name
);
1966 sky2_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_CLI_TX_PE
);
1969 if (status
& Y2_IS_PAR_RX1
) {
1970 if (net_ratelimit())
1971 printk(KERN_ERR PFX
"%s: RX parity error\n", dev
->name
);
1972 sky2_write32(hw
, Q_ADDR(rxqaddr
[port
], Q_CSR
), BMU_CLR_IRQ_PAR
);
1975 if (status
& Y2_IS_TCP_TXA1
) {
1976 if (net_ratelimit())
1977 printk(KERN_ERR PFX
"%s: TCP segmentation error\n",
1979 sky2_write32(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
), BMU_CLR_IRQ_TCP
);
1983 static void sky2_hw_intr(struct sky2_hw
*hw
)
1985 u32 status
= sky2_read32(hw
, B0_HWE_ISRC
);
1987 if (status
& Y2_IS_TIST_OV
)
1988 sky2_write8(hw
, GMAC_TI_ST_CTRL
, GMT_ST_CLR_IRQ
);
1990 if (status
& (Y2_IS_MST_ERR
| Y2_IS_IRQ_STAT
)) {
1993 pci_read_config_word(hw
->pdev
, PCI_STATUS
, &pci_err
);
1994 if (net_ratelimit())
1995 printk(KERN_ERR PFX
"%s: pci hw error (0x%x)\n",
1996 pci_name(hw
->pdev
), pci_err
);
1998 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
1999 pci_write_config_word(hw
->pdev
, PCI_STATUS
,
2000 pci_err
| PCI_STATUS_ERROR_BITS
);
2001 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
2004 if (status
& Y2_IS_PCI_EXP
) {
2005 /* PCI-Express uncorrectable Error occurred */
2008 pci_read_config_dword(hw
->pdev
, PEX_UNC_ERR_STAT
, &pex_err
);
2010 if (net_ratelimit())
2011 printk(KERN_ERR PFX
"%s: pci express error (0x%x)\n",
2012 pci_name(hw
->pdev
), pex_err
);
2014 /* clear the interrupt */
2015 sky2_write32(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
2016 pci_write_config_dword(hw
->pdev
, PEX_UNC_ERR_STAT
,
2018 sky2_write32(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
2020 if (pex_err
& PEX_FATAL_ERRORS
) {
2021 u32 hwmsk
= sky2_read32(hw
, B0_HWE_IMSK
);
2022 hwmsk
&= ~Y2_IS_PCI_EXP
;
2023 sky2_write32(hw
, B0_HWE_IMSK
, hwmsk
);
2027 if (status
& Y2_HWE_L1_MASK
)
2028 sky2_hw_error(hw
, 0, status
);
2030 if (status
& Y2_HWE_L1_MASK
)
2031 sky2_hw_error(hw
, 1, status
);
2034 static void sky2_mac_intr(struct sky2_hw
*hw
, unsigned port
)
2036 struct net_device
*dev
= hw
->dev
[port
];
2037 struct sky2_port
*sky2
= netdev_priv(dev
);
2038 u8 status
= sky2_read8(hw
, SK_REG(port
, GMAC_IRQ_SRC
));
2040 if (netif_msg_intr(sky2
))
2041 printk(KERN_INFO PFX
"%s: mac interrupt status 0x%x\n",
2044 if (status
& GM_IS_RX_FF_OR
) {
2045 ++sky2
->net_stats
.rx_fifo_errors
;
2046 sky2_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_CLI_RX_FO
);
2049 if (status
& GM_IS_TX_FF_UR
) {
2050 ++sky2
->net_stats
.tx_fifo_errors
;
2051 sky2_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_CLI_TX_FU
);
2055 static void sky2_phy_intr(struct sky2_hw
*hw
, unsigned port
)
2057 struct net_device
*dev
= hw
->dev
[port
];
2058 struct sky2_port
*sky2
= netdev_priv(dev
);
2060 hw
->intr_mask
&= ~(port
== 0 ? Y2_IS_IRQ_PHY1
: Y2_IS_IRQ_PHY2
);
2061 sky2_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2062 schedule_work(&sky2
->phy_task
);
2065 static irqreturn_t
sky2_intr(int irq
, void *dev_id
, struct pt_regs
*regs
)
2067 struct sky2_hw
*hw
= dev_id
;
2068 struct net_device
*dev0
= hw
->dev
[0];
2071 status
= sky2_read32(hw
, B0_Y2_SP_ISRC2
);
2072 if (status
== 0 || status
== ~0)
2075 if (status
& Y2_IS_HW_ERR
)
2078 /* Do NAPI for Rx and Tx status */
2079 if (status
& Y2_IS_STAT_BMU
) {
2080 hw
->intr_mask
&= ~Y2_IS_STAT_BMU
;
2081 sky2_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2083 if (likely(__netif_rx_schedule_prep(dev0
))) {
2084 prefetch(&hw
->st_le
[hw
->st_idx
]);
2085 __netif_rx_schedule(dev0
);
2089 if (status
& Y2_IS_IRQ_PHY1
)
2090 sky2_phy_intr(hw
, 0);
2092 if (status
& Y2_IS_IRQ_PHY2
)
2093 sky2_phy_intr(hw
, 1);
2095 if (status
& Y2_IS_IRQ_MAC1
)
2096 sky2_mac_intr(hw
, 0);
2098 if (status
& Y2_IS_IRQ_MAC2
)
2099 sky2_mac_intr(hw
, 1);
2101 sky2_write32(hw
, B0_Y2_SP_ICR
, 2);
2103 sky2_read32(hw
, B0_IMSK
);
2108 #ifdef CONFIG_NET_POLL_CONTROLLER
2109 static void sky2_netpoll(struct net_device
*dev
)
2111 struct sky2_port
*sky2
= netdev_priv(dev
);
2113 sky2_intr(sky2
->hw
->pdev
->irq
, sky2
->hw
, NULL
);
2117 /* Chip internal frequency for clock calculations */
2118 static inline u32
sky2_mhz(const struct sky2_hw
*hw
)
2120 switch (hw
->chip_id
) {
2121 case CHIP_ID_YUKON_EC
:
2122 case CHIP_ID_YUKON_EC_U
:
2123 return 125; /* 125 Mhz */
2124 case CHIP_ID_YUKON_FE
:
2125 return 100; /* 100 Mhz */
2126 default: /* YUKON_XL */
2127 return 156; /* 156 Mhz */
2131 static inline u32
sky2_us2clk(const struct sky2_hw
*hw
, u32 us
)
2133 return sky2_mhz(hw
) * us
;
2136 static inline u32
sky2_clk2us(const struct sky2_hw
*hw
, u32 clk
)
2138 return clk
/ sky2_mhz(hw
);
2142 static int sky2_reset(struct sky2_hw
*hw
)
2149 ctst
= sky2_read32(hw
, B0_CTST
);
2151 sky2_write8(hw
, B0_CTST
, CS_RST_CLR
);
2152 hw
->chip_id
= sky2_read8(hw
, B2_CHIP_ID
);
2153 if (hw
->chip_id
< CHIP_ID_YUKON_XL
|| hw
->chip_id
> CHIP_ID_YUKON_FE
) {
2154 printk(KERN_ERR PFX
"%s: unsupported chip type 0x%x\n",
2155 pci_name(hw
->pdev
), hw
->chip_id
);
2159 /* ring for status responses */
2160 hw
->st_le
= pci_alloc_consistent(hw
->pdev
, STATUS_LE_BYTES
,
2166 if (hw
->chip_id
<= CHIP_ID_YUKON_EC
) {
2167 sky2_write8(hw
, B28_Y2_ASF_STAT_CMD
, Y2_ASF_RESET
);
2168 sky2_write16(hw
, B0_CTST
, Y2_ASF_DISABLE
);
2172 sky2_write8(hw
, B0_CTST
, CS_RST_SET
);
2173 sky2_write8(hw
, B0_CTST
, CS_RST_CLR
);
2175 /* clear PCI errors, if any */
2176 pci_read_config_word(hw
->pdev
, PCI_STATUS
, &status
);
2177 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
2178 pci_write_config_word(hw
->pdev
, PCI_STATUS
,
2179 status
| PCI_STATUS_ERROR_BITS
);
2181 sky2_write8(hw
, B0_CTST
, CS_MRST_CLR
);
2183 /* clear any PEX errors */
2186 pci_write_config_dword(hw
->pdev
, PEX_UNC_ERR_STAT
,
2188 pci_read_config_word(hw
->pdev
, PEX_LNK_STAT
, &lstat
);
2191 pmd_type
= sky2_read8(hw
, B2_PMD_TYP
);
2192 hw
->copper
= !(pmd_type
== 'L' || pmd_type
== 'S');
2195 t8
= sky2_read8(hw
, B2_Y2_HW_RES
);
2196 if ((t8
& CFG_DUAL_MAC_MSK
) == CFG_DUAL_MAC_MSK
) {
2197 if (!(sky2_read8(hw
, B2_Y2_CLK_GATE
) & Y2_STATUS_LNK2_INAC
))
2200 hw
->chip_rev
= (sky2_read8(hw
, B2_MAC_CFG
) & CFG_CHIP_R_MSK
) >> 4;
2202 sky2_set_power_state(hw
, PCI_D0
);
2204 for (i
= 0; i
< hw
->ports
; i
++) {
2205 sky2_write8(hw
, SK_REG(i
, GMAC_LINK_CTRL
), GMLC_RST_SET
);
2206 sky2_write8(hw
, SK_REG(i
, GMAC_LINK_CTRL
), GMLC_RST_CLR
);
2209 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
2211 /* Clear I2C IRQ noise */
2212 sky2_write32(hw
, B2_I2C_IRQ
, 1);
2214 /* turn off hardware timer (unused) */
2215 sky2_write8(hw
, B2_TI_CTRL
, TIM_STOP
);
2216 sky2_write8(hw
, B2_TI_CTRL
, TIM_CLR_IRQ
);
2218 sky2_write8(hw
, B0_Y2LED
, LED_STAT_ON
);
2220 /* Turn off descriptor polling */
2221 sky2_write32(hw
, B28_DPT_CTRL
, DPT_STOP
);
2223 /* Turn off receive timestamp */
2224 sky2_write8(hw
, GMAC_TI_ST_CTRL
, GMT_ST_STOP
);
2225 sky2_write8(hw
, GMAC_TI_ST_CTRL
, GMT_ST_CLR_IRQ
);
2227 /* enable the Tx Arbiters */
2228 for (i
= 0; i
< hw
->ports
; i
++)
2229 sky2_write8(hw
, SK_REG(i
, TXA_CTRL
), TXA_ENA_ARB
);
2231 /* Initialize ram interface */
2232 for (i
= 0; i
< hw
->ports
; i
++) {
2233 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_CTRL
), RI_RST_CLR
);
2235 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_R1
), SK_RI_TO_53
);
2236 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_XA1
), SK_RI_TO_53
);
2237 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_XS1
), SK_RI_TO_53
);
2238 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_R1
), SK_RI_TO_53
);
2239 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_XA1
), SK_RI_TO_53
);
2240 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_XS1
), SK_RI_TO_53
);
2241 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_R2
), SK_RI_TO_53
);
2242 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_XA2
), SK_RI_TO_53
);
2243 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_XS2
), SK_RI_TO_53
);
2244 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_R2
), SK_RI_TO_53
);
2245 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_XA2
), SK_RI_TO_53
);
2246 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_XS2
), SK_RI_TO_53
);
2249 sky2_write32(hw
, B0_HWE_IMSK
, Y2_HWE_ALL_MASK
);
2251 for (i
= 0; i
< hw
->ports
; i
++)
2252 sky2_phy_reset(hw
, i
);
2254 memset(hw
->st_le
, 0, STATUS_LE_BYTES
);
2257 sky2_write32(hw
, STAT_CTRL
, SC_STAT_RST_SET
);
2258 sky2_write32(hw
, STAT_CTRL
, SC_STAT_RST_CLR
);
2260 sky2_write32(hw
, STAT_LIST_ADDR_LO
, hw
->st_dma
);
2261 sky2_write32(hw
, STAT_LIST_ADDR_HI
, (u64
) hw
->st_dma
>> 32);
2263 /* Set the list last index */
2264 sky2_write16(hw
, STAT_LAST_IDX
, STATUS_RING_SIZE
- 1);
2266 /* These status setup values are copied from SysKonnect's driver */
2268 /* WA for dev. #4.3 */
2269 sky2_write16(hw
, STAT_TX_IDX_TH
, 0xfff); /* Tx Threshold */
2271 /* set Status-FIFO watermark */
2272 sky2_write8(hw
, STAT_FIFO_WM
, 0x21); /* WA for dev. #4.18 */
2274 /* set Status-FIFO ISR watermark */
2275 sky2_write8(hw
, STAT_FIFO_ISR_WM
, 0x07); /* WA for dev. #4.18 */
2276 sky2_write32(hw
, STAT_TX_TIMER_INI
, sky2_us2clk(hw
, 10000));
2278 sky2_write16(hw
, STAT_TX_IDX_TH
, 10);
2279 sky2_write8(hw
, STAT_FIFO_WM
, 16);
2281 /* set Status-FIFO ISR watermark */
2282 if (hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
== 0)
2283 sky2_write8(hw
, STAT_FIFO_ISR_WM
, 4);
2285 sky2_write8(hw
, STAT_FIFO_ISR_WM
, 16);
2287 sky2_write32(hw
, STAT_TX_TIMER_INI
, sky2_us2clk(hw
, 1000));
2288 sky2_write32(hw
, STAT_LEV_TIMER_INI
, sky2_us2clk(hw
, 100));
2289 sky2_write32(hw
, STAT_ISR_TIMER_INI
, sky2_us2clk(hw
, 20));
2292 /* enable status unit */
2293 sky2_write32(hw
, STAT_CTRL
, SC_STAT_OP_ON
);
2295 sky2_write8(hw
, STAT_TX_TIMER_CTRL
, TIM_START
);
2296 sky2_write8(hw
, STAT_LEV_TIMER_CTRL
, TIM_START
);
2297 sky2_write8(hw
, STAT_ISR_TIMER_CTRL
, TIM_START
);
2302 static u32
sky2_supported_modes(const struct sky2_hw
*hw
)
2306 modes
= SUPPORTED_10baseT_Half
2307 | SUPPORTED_10baseT_Full
2308 | SUPPORTED_100baseT_Half
2309 | SUPPORTED_100baseT_Full
2310 | SUPPORTED_Autoneg
| SUPPORTED_TP
;
2312 if (hw
->chip_id
!= CHIP_ID_YUKON_FE
)
2313 modes
|= SUPPORTED_1000baseT_Half
2314 | SUPPORTED_1000baseT_Full
;
2316 modes
= SUPPORTED_1000baseT_Full
| SUPPORTED_FIBRE
2317 | SUPPORTED_Autoneg
;
2321 static int sky2_get_settings(struct net_device
*dev
, struct ethtool_cmd
*ecmd
)
2323 struct sky2_port
*sky2
= netdev_priv(dev
);
2324 struct sky2_hw
*hw
= sky2
->hw
;
2326 ecmd
->transceiver
= XCVR_INTERNAL
;
2327 ecmd
->supported
= sky2_supported_modes(hw
);
2328 ecmd
->phy_address
= PHY_ADDR_MARV
;
2330 ecmd
->supported
= SUPPORTED_10baseT_Half
2331 | SUPPORTED_10baseT_Full
2332 | SUPPORTED_100baseT_Half
2333 | SUPPORTED_100baseT_Full
2334 | SUPPORTED_1000baseT_Half
2335 | SUPPORTED_1000baseT_Full
2336 | SUPPORTED_Autoneg
| SUPPORTED_TP
;
2337 ecmd
->port
= PORT_TP
;
2339 ecmd
->port
= PORT_FIBRE
;
2341 ecmd
->advertising
= sky2
->advertising
;
2342 ecmd
->autoneg
= sky2
->autoneg
;
2343 ecmd
->speed
= sky2
->speed
;
2344 ecmd
->duplex
= sky2
->duplex
;
2348 static int sky2_set_settings(struct net_device
*dev
, struct ethtool_cmd
*ecmd
)
2350 struct sky2_port
*sky2
= netdev_priv(dev
);
2351 const struct sky2_hw
*hw
= sky2
->hw
;
2352 u32 supported
= sky2_supported_modes(hw
);
2354 if (ecmd
->autoneg
== AUTONEG_ENABLE
) {
2355 ecmd
->advertising
= supported
;
2361 switch (ecmd
->speed
) {
2363 if (ecmd
->duplex
== DUPLEX_FULL
)
2364 setting
= SUPPORTED_1000baseT_Full
;
2365 else if (ecmd
->duplex
== DUPLEX_HALF
)
2366 setting
= SUPPORTED_1000baseT_Half
;
2371 if (ecmd
->duplex
== DUPLEX_FULL
)
2372 setting
= SUPPORTED_100baseT_Full
;
2373 else if (ecmd
->duplex
== DUPLEX_HALF
)
2374 setting
= SUPPORTED_100baseT_Half
;
2380 if (ecmd
->duplex
== DUPLEX_FULL
)
2381 setting
= SUPPORTED_10baseT_Full
;
2382 else if (ecmd
->duplex
== DUPLEX_HALF
)
2383 setting
= SUPPORTED_10baseT_Half
;
2391 if ((setting
& supported
) == 0)
2394 sky2
->speed
= ecmd
->speed
;
2395 sky2
->duplex
= ecmd
->duplex
;
2398 sky2
->autoneg
= ecmd
->autoneg
;
2399 sky2
->advertising
= ecmd
->advertising
;
2401 if (netif_running(dev
))
2402 sky2_phy_reinit(sky2
);
2407 static void sky2_get_drvinfo(struct net_device
*dev
,
2408 struct ethtool_drvinfo
*info
)
2410 struct sky2_port
*sky2
= netdev_priv(dev
);
2412 strcpy(info
->driver
, DRV_NAME
);
2413 strcpy(info
->version
, DRV_VERSION
);
2414 strcpy(info
->fw_version
, "N/A");
2415 strcpy(info
->bus_info
, pci_name(sky2
->hw
->pdev
));
2418 static const struct sky2_stat
{
2419 char name
[ETH_GSTRING_LEN
];
2422 { "tx_bytes", GM_TXO_OK_HI
},
2423 { "rx_bytes", GM_RXO_OK_HI
},
2424 { "tx_broadcast", GM_TXF_BC_OK
},
2425 { "rx_broadcast", GM_RXF_BC_OK
},
2426 { "tx_multicast", GM_TXF_MC_OK
},
2427 { "rx_multicast", GM_RXF_MC_OK
},
2428 { "tx_unicast", GM_TXF_UC_OK
},
2429 { "rx_unicast", GM_RXF_UC_OK
},
2430 { "tx_mac_pause", GM_TXF_MPAUSE
},
2431 { "rx_mac_pause", GM_RXF_MPAUSE
},
2432 { "collisions", GM_TXF_SNG_COL
},
2433 { "late_collision",GM_TXF_LAT_COL
},
2434 { "aborted", GM_TXF_ABO_COL
},
2435 { "multi_collisions", GM_TXF_MUL_COL
},
2436 { "fifo_underrun", GM_TXE_FIFO_UR
},
2437 { "fifo_overflow", GM_RXE_FIFO_OV
},
2438 { "rx_toolong", GM_RXF_LNG_ERR
},
2439 { "rx_jabber", GM_RXF_JAB_PKT
},
2440 { "rx_runt", GM_RXE_FRAG
},
2441 { "rx_too_long", GM_RXF_LNG_ERR
},
2442 { "rx_fcs_error", GM_RXF_FCS_ERR
},
2445 static u32
sky2_get_rx_csum(struct net_device
*dev
)
2447 struct sky2_port
*sky2
= netdev_priv(dev
);
2449 return sky2
->rx_csum
;
2452 static int sky2_set_rx_csum(struct net_device
*dev
, u32 data
)
2454 struct sky2_port
*sky2
= netdev_priv(dev
);
2456 sky2
->rx_csum
= data
;
2458 sky2_write32(sky2
->hw
, Q_ADDR(rxqaddr
[sky2
->port
], Q_CSR
),
2459 data
? BMU_ENA_RX_CHKSUM
: BMU_DIS_RX_CHKSUM
);
2464 static u32
sky2_get_msglevel(struct net_device
*netdev
)
2466 struct sky2_port
*sky2
= netdev_priv(netdev
);
2467 return sky2
->msg_enable
;
2470 static int sky2_nway_reset(struct net_device
*dev
)
2472 struct sky2_port
*sky2
= netdev_priv(dev
);
2474 if (sky2
->autoneg
!= AUTONEG_ENABLE
)
2477 sky2_phy_reinit(sky2
);
2482 static void sky2_phy_stats(struct sky2_port
*sky2
, u64
* data
, unsigned count
)
2484 struct sky2_hw
*hw
= sky2
->hw
;
2485 unsigned port
= sky2
->port
;
2488 data
[0] = (u64
) gma_read32(hw
, port
, GM_TXO_OK_HI
) << 32
2489 | (u64
) gma_read32(hw
, port
, GM_TXO_OK_LO
);
2490 data
[1] = (u64
) gma_read32(hw
, port
, GM_RXO_OK_HI
) << 32
2491 | (u64
) gma_read32(hw
, port
, GM_RXO_OK_LO
);
2493 for (i
= 2; i
< count
; i
++)
2494 data
[i
] = (u64
) gma_read32(hw
, port
, sky2_stats
[i
].offset
);
2497 static void sky2_set_msglevel(struct net_device
*netdev
, u32 value
)
2499 struct sky2_port
*sky2
= netdev_priv(netdev
);
2500 sky2
->msg_enable
= value
;
2503 static int sky2_get_stats_count(struct net_device
*dev
)
2505 return ARRAY_SIZE(sky2_stats
);
2508 static void sky2_get_ethtool_stats(struct net_device
*dev
,
2509 struct ethtool_stats
*stats
, u64
* data
)
2511 struct sky2_port
*sky2
= netdev_priv(dev
);
2513 sky2_phy_stats(sky2
, data
, ARRAY_SIZE(sky2_stats
));
2516 static void sky2_get_strings(struct net_device
*dev
, u32 stringset
, u8
* data
)
2520 switch (stringset
) {
2522 for (i
= 0; i
< ARRAY_SIZE(sky2_stats
); i
++)
2523 memcpy(data
+ i
* ETH_GSTRING_LEN
,
2524 sky2_stats
[i
].name
, ETH_GSTRING_LEN
);
2529 /* Use hardware MIB variables for critical path statistics and
2530 * transmit feedback not reported at interrupt.
2531 * Other errors are accounted for in interrupt handler.
2533 static struct net_device_stats
*sky2_get_stats(struct net_device
*dev
)
2535 struct sky2_port
*sky2
= netdev_priv(dev
);
2538 sky2_phy_stats(sky2
, data
, ARRAY_SIZE(data
));
2540 sky2
->net_stats
.tx_bytes
= data
[0];
2541 sky2
->net_stats
.rx_bytes
= data
[1];
2542 sky2
->net_stats
.tx_packets
= data
[2] + data
[4] + data
[6];
2543 sky2
->net_stats
.rx_packets
= data
[3] + data
[5] + data
[7];
2544 sky2
->net_stats
.multicast
= data
[5] + data
[7];
2545 sky2
->net_stats
.collisions
= data
[10];
2546 sky2
->net_stats
.tx_aborted_errors
= data
[12];
2548 return &sky2
->net_stats
;
2551 static int sky2_set_mac_address(struct net_device
*dev
, void *p
)
2553 struct sky2_port
*sky2
= netdev_priv(dev
);
2554 struct sockaddr
*addr
= p
;
2556 if (!is_valid_ether_addr(addr
->sa_data
))
2557 return -EADDRNOTAVAIL
;
2559 memcpy(dev
->dev_addr
, addr
->sa_data
, ETH_ALEN
);
2560 memcpy_toio(sky2
->hw
->regs
+ B2_MAC_1
+ sky2
->port
* 8,
2561 dev
->dev_addr
, ETH_ALEN
);
2562 memcpy_toio(sky2
->hw
->regs
+ B2_MAC_2
+ sky2
->port
* 8,
2563 dev
->dev_addr
, ETH_ALEN
);
2565 if (netif_running(dev
))
2566 sky2_phy_reinit(sky2
);
2571 static void sky2_set_multicast(struct net_device
*dev
)
2573 struct sky2_port
*sky2
= netdev_priv(dev
);
2574 struct sky2_hw
*hw
= sky2
->hw
;
2575 unsigned port
= sky2
->port
;
2576 struct dev_mc_list
*list
= dev
->mc_list
;
2580 memset(filter
, 0, sizeof(filter
));
2582 reg
= gma_read16(hw
, port
, GM_RX_CTRL
);
2583 reg
|= GM_RXCR_UCF_ENA
;
2585 if (dev
->flags
& IFF_PROMISC
) /* promiscuous */
2586 reg
&= ~(GM_RXCR_UCF_ENA
| GM_RXCR_MCF_ENA
);
2587 else if ((dev
->flags
& IFF_ALLMULTI
) || dev
->mc_count
> 16) /* all multicast */
2588 memset(filter
, 0xff, sizeof(filter
));
2589 else if (dev
->mc_count
== 0) /* no multicast */
2590 reg
&= ~GM_RXCR_MCF_ENA
;
2593 reg
|= GM_RXCR_MCF_ENA
;
2595 for (i
= 0; list
&& i
< dev
->mc_count
; i
++, list
= list
->next
) {
2596 u32 bit
= ether_crc(ETH_ALEN
, list
->dmi_addr
) & 0x3f;
2597 filter
[bit
/ 8] |= 1 << (bit
% 8);
2601 gma_write16(hw
, port
, GM_MC_ADDR_H1
,
2602 (u16
) filter
[0] | ((u16
) filter
[1] << 8));
2603 gma_write16(hw
, port
, GM_MC_ADDR_H2
,
2604 (u16
) filter
[2] | ((u16
) filter
[3] << 8));
2605 gma_write16(hw
, port
, GM_MC_ADDR_H3
,
2606 (u16
) filter
[4] | ((u16
) filter
[5] << 8));
2607 gma_write16(hw
, port
, GM_MC_ADDR_H4
,
2608 (u16
) filter
[6] | ((u16
) filter
[7] << 8));
2610 gma_write16(hw
, port
, GM_RX_CTRL
, reg
);
2613 /* Can have one global because blinking is controlled by
2614 * ethtool and that is always under RTNL mutex
2616 static void sky2_led(struct sky2_hw
*hw
, unsigned port
, int on
)
2620 switch (hw
->chip_id
) {
2621 case CHIP_ID_YUKON_XL
:
2622 pg
= gm_phy_read(hw
, port
, PHY_MARV_EXT_ADR
);
2623 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 3);
2624 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
,
2625 on
? (PHY_M_LEDC_LOS_CTRL(1) |
2626 PHY_M_LEDC_INIT_CTRL(7) |
2627 PHY_M_LEDC_STA1_CTRL(7) |
2628 PHY_M_LEDC_STA0_CTRL(7))
2631 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, pg
);
2635 gm_phy_write(hw
, port
, PHY_MARV_LED_CTRL
, 0);
2636 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
,
2637 on
? PHY_M_LED_MO_DUP(MO_LED_ON
) |
2638 PHY_M_LED_MO_10(MO_LED_ON
) |
2639 PHY_M_LED_MO_100(MO_LED_ON
) |
2640 PHY_M_LED_MO_1000(MO_LED_ON
) |
2641 PHY_M_LED_MO_RX(MO_LED_ON
)
2642 : PHY_M_LED_MO_DUP(MO_LED_OFF
) |
2643 PHY_M_LED_MO_10(MO_LED_OFF
) |
2644 PHY_M_LED_MO_100(MO_LED_OFF
) |
2645 PHY_M_LED_MO_1000(MO_LED_OFF
) |
2646 PHY_M_LED_MO_RX(MO_LED_OFF
));
2651 /* blink LED's for finding board */
2652 static int sky2_phys_id(struct net_device
*dev
, u32 data
)
2654 struct sky2_port
*sky2
= netdev_priv(dev
);
2655 struct sky2_hw
*hw
= sky2
->hw
;
2656 unsigned port
= sky2
->port
;
2657 u16 ledctrl
, ledover
= 0;
2662 if (!data
|| data
> (u32
) (MAX_SCHEDULE_TIMEOUT
/ HZ
))
2663 ms
= jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT
);
2667 /* save initial values */
2668 down(&sky2
->phy_sema
);
2669 if (hw
->chip_id
== CHIP_ID_YUKON_XL
) {
2670 u16 pg
= gm_phy_read(hw
, port
, PHY_MARV_EXT_ADR
);
2671 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 3);
2672 ledctrl
= gm_phy_read(hw
, port
, PHY_MARV_PHY_CTRL
);
2673 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, pg
);
2675 ledctrl
= gm_phy_read(hw
, port
, PHY_MARV_LED_CTRL
);
2676 ledover
= gm_phy_read(hw
, port
, PHY_MARV_LED_OVER
);
2680 while (!interrupted
&& ms
> 0) {
2681 sky2_led(hw
, port
, onoff
);
2684 up(&sky2
->phy_sema
);
2685 interrupted
= msleep_interruptible(250);
2686 down(&sky2
->phy_sema
);
2691 /* resume regularly scheduled programming */
2692 if (hw
->chip_id
== CHIP_ID_YUKON_XL
) {
2693 u16 pg
= gm_phy_read(hw
, port
, PHY_MARV_EXT_ADR
);
2694 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 3);
2695 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, ledctrl
);
2696 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, pg
);
2698 gm_phy_write(hw
, port
, PHY_MARV_LED_CTRL
, ledctrl
);
2699 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
, ledover
);
2701 up(&sky2
->phy_sema
);
2706 static void sky2_get_pauseparam(struct net_device
*dev
,
2707 struct ethtool_pauseparam
*ecmd
)
2709 struct sky2_port
*sky2
= netdev_priv(dev
);
2711 ecmd
->tx_pause
= sky2
->tx_pause
;
2712 ecmd
->rx_pause
= sky2
->rx_pause
;
2713 ecmd
->autoneg
= sky2
->autoneg
;
2716 static int sky2_set_pauseparam(struct net_device
*dev
,
2717 struct ethtool_pauseparam
*ecmd
)
2719 struct sky2_port
*sky2
= netdev_priv(dev
);
2722 sky2
->autoneg
= ecmd
->autoneg
;
2723 sky2
->tx_pause
= ecmd
->tx_pause
!= 0;
2724 sky2
->rx_pause
= ecmd
->rx_pause
!= 0;
2726 sky2_phy_reinit(sky2
);
2732 static void sky2_get_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
2734 struct sky2_port
*sky2
= netdev_priv(dev
);
2736 wol
->supported
= WAKE_MAGIC
;
2737 wol
->wolopts
= sky2
->wol
? WAKE_MAGIC
: 0;
2740 static int sky2_set_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
2742 struct sky2_port
*sky2
= netdev_priv(dev
);
2743 struct sky2_hw
*hw
= sky2
->hw
;
2745 if (wol
->wolopts
!= WAKE_MAGIC
&& wol
->wolopts
!= 0)
2748 sky2
->wol
= wol
->wolopts
== WAKE_MAGIC
;
2751 memcpy_toio(hw
->regs
+ WOL_MAC_ADDR
, dev
->dev_addr
, ETH_ALEN
);
2753 sky2_write16(hw
, WOL_CTRL_STAT
,
2754 WOL_CTL_ENA_PME_ON_MAGIC_PKT
|
2755 WOL_CTL_ENA_MAGIC_PKT_UNIT
);
2757 sky2_write16(hw
, WOL_CTRL_STAT
, WOL_CTL_DEFAULT
);
2763 static int sky2_get_coalesce(struct net_device
*dev
,
2764 struct ethtool_coalesce
*ecmd
)
2766 struct sky2_port
*sky2
= netdev_priv(dev
);
2767 struct sky2_hw
*hw
= sky2
->hw
;
2769 if (sky2_read8(hw
, STAT_TX_TIMER_CTRL
) == TIM_STOP
)
2770 ecmd
->tx_coalesce_usecs
= 0;
2772 u32 clks
= sky2_read32(hw
, STAT_TX_TIMER_INI
);
2773 ecmd
->tx_coalesce_usecs
= sky2_clk2us(hw
, clks
);
2775 ecmd
->tx_max_coalesced_frames
= sky2_read16(hw
, STAT_TX_IDX_TH
);
2777 if (sky2_read8(hw
, STAT_LEV_TIMER_CTRL
) == TIM_STOP
)
2778 ecmd
->rx_coalesce_usecs
= 0;
2780 u32 clks
= sky2_read32(hw
, STAT_LEV_TIMER_INI
);
2781 ecmd
->rx_coalesce_usecs
= sky2_clk2us(hw
, clks
);
2783 ecmd
->rx_max_coalesced_frames
= sky2_read8(hw
, STAT_FIFO_WM
);
2785 if (sky2_read8(hw
, STAT_ISR_TIMER_CTRL
) == TIM_STOP
)
2786 ecmd
->rx_coalesce_usecs_irq
= 0;
2788 u32 clks
= sky2_read32(hw
, STAT_ISR_TIMER_INI
);
2789 ecmd
->rx_coalesce_usecs_irq
= sky2_clk2us(hw
, clks
);
2792 ecmd
->rx_max_coalesced_frames_irq
= sky2_read8(hw
, STAT_FIFO_ISR_WM
);
2797 /* Note: this affect both ports */
2798 static int sky2_set_coalesce(struct net_device
*dev
,
2799 struct ethtool_coalesce
*ecmd
)
2801 struct sky2_port
*sky2
= netdev_priv(dev
);
2802 struct sky2_hw
*hw
= sky2
->hw
;
2803 const u32 tmin
= sky2_clk2us(hw
, 1);
2804 const u32 tmax
= 5000;
2806 if (ecmd
->tx_coalesce_usecs
!= 0 &&
2807 (ecmd
->tx_coalesce_usecs
< tmin
|| ecmd
->tx_coalesce_usecs
> tmax
))
2810 if (ecmd
->rx_coalesce_usecs
!= 0 &&
2811 (ecmd
->rx_coalesce_usecs
< tmin
|| ecmd
->rx_coalesce_usecs
> tmax
))
2814 if (ecmd
->rx_coalesce_usecs_irq
!= 0 &&
2815 (ecmd
->rx_coalesce_usecs_irq
< tmin
|| ecmd
->rx_coalesce_usecs_irq
> tmax
))
2818 if (ecmd
->tx_max_coalesced_frames
> 0xffff)
2820 if (ecmd
->rx_max_coalesced_frames
> 0xff)
2822 if (ecmd
->rx_max_coalesced_frames_irq
> 0xff)
2825 if (ecmd
->tx_coalesce_usecs
== 0)
2826 sky2_write8(hw
, STAT_TX_TIMER_CTRL
, TIM_STOP
);
2828 sky2_write32(hw
, STAT_TX_TIMER_INI
,
2829 sky2_us2clk(hw
, ecmd
->tx_coalesce_usecs
));
2830 sky2_write8(hw
, STAT_TX_TIMER_CTRL
, TIM_START
);
2832 sky2_write16(hw
, STAT_TX_IDX_TH
, ecmd
->tx_max_coalesced_frames
);
2834 if (ecmd
->rx_coalesce_usecs
== 0)
2835 sky2_write8(hw
, STAT_LEV_TIMER_CTRL
, TIM_STOP
);
2837 sky2_write32(hw
, STAT_LEV_TIMER_INI
,
2838 sky2_us2clk(hw
, ecmd
->rx_coalesce_usecs
));
2839 sky2_write8(hw
, STAT_LEV_TIMER_CTRL
, TIM_START
);
2841 sky2_write8(hw
, STAT_FIFO_WM
, ecmd
->rx_max_coalesced_frames
);
2843 if (ecmd
->rx_coalesce_usecs_irq
== 0)
2844 sky2_write8(hw
, STAT_ISR_TIMER_CTRL
, TIM_STOP
);
2846 sky2_write32(hw
, STAT_TX_TIMER_INI
,
2847 sky2_us2clk(hw
, ecmd
->rx_coalesce_usecs_irq
));
2848 sky2_write8(hw
, STAT_ISR_TIMER_CTRL
, TIM_START
);
2850 sky2_write8(hw
, STAT_FIFO_ISR_WM
, ecmd
->rx_max_coalesced_frames_irq
);
2854 static void sky2_get_ringparam(struct net_device
*dev
,
2855 struct ethtool_ringparam
*ering
)
2857 struct sky2_port
*sky2
= netdev_priv(dev
);
2859 ering
->rx_max_pending
= RX_MAX_PENDING
;
2860 ering
->rx_mini_max_pending
= 0;
2861 ering
->rx_jumbo_max_pending
= 0;
2862 ering
->tx_max_pending
= TX_RING_SIZE
- 1;
2864 ering
->rx_pending
= sky2
->rx_pending
;
2865 ering
->rx_mini_pending
= 0;
2866 ering
->rx_jumbo_pending
= 0;
2867 ering
->tx_pending
= sky2
->tx_pending
;
2870 static int sky2_set_ringparam(struct net_device
*dev
,
2871 struct ethtool_ringparam
*ering
)
2873 struct sky2_port
*sky2
= netdev_priv(dev
);
2876 if (ering
->rx_pending
> RX_MAX_PENDING
||
2877 ering
->rx_pending
< 8 ||
2878 ering
->tx_pending
< MAX_SKB_TX_LE
||
2879 ering
->tx_pending
> TX_RING_SIZE
- 1)
2882 if (netif_running(dev
))
2885 sky2
->rx_pending
= ering
->rx_pending
;
2886 sky2
->tx_pending
= ering
->tx_pending
;
2888 if (netif_running(dev
)) {
2893 sky2_set_multicast(dev
);
2899 static int sky2_get_regs_len(struct net_device
*dev
)
2905 * Returns copy of control register region
2906 * Note: access to the RAM address register set will cause timeouts.
2908 static void sky2_get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
2911 const struct sky2_port
*sky2
= netdev_priv(dev
);
2912 const void __iomem
*io
= sky2
->hw
->regs
;
2914 BUG_ON(regs
->len
< B3_RI_WTO_R1
);
2916 memset(p
, 0, regs
->len
);
2918 memcpy_fromio(p
, io
, B3_RAM_ADDR
);
2920 memcpy_fromio(p
+ B3_RI_WTO_R1
,
2922 regs
->len
- B3_RI_WTO_R1
);
2925 static struct ethtool_ops sky2_ethtool_ops
= {
2926 .get_settings
= sky2_get_settings
,
2927 .set_settings
= sky2_set_settings
,
2928 .get_drvinfo
= sky2_get_drvinfo
,
2929 .get_msglevel
= sky2_get_msglevel
,
2930 .set_msglevel
= sky2_set_msglevel
,
2931 .nway_reset
= sky2_nway_reset
,
2932 .get_regs_len
= sky2_get_regs_len
,
2933 .get_regs
= sky2_get_regs
,
2934 .get_link
= ethtool_op_get_link
,
2935 .get_sg
= ethtool_op_get_sg
,
2936 .set_sg
= ethtool_op_set_sg
,
2937 .get_tx_csum
= ethtool_op_get_tx_csum
,
2938 .set_tx_csum
= ethtool_op_set_tx_csum
,
2939 .get_tso
= ethtool_op_get_tso
,
2940 .set_tso
= ethtool_op_set_tso
,
2941 .get_rx_csum
= sky2_get_rx_csum
,
2942 .set_rx_csum
= sky2_set_rx_csum
,
2943 .get_strings
= sky2_get_strings
,
2944 .get_coalesce
= sky2_get_coalesce
,
2945 .set_coalesce
= sky2_set_coalesce
,
2946 .get_ringparam
= sky2_get_ringparam
,
2947 .set_ringparam
= sky2_set_ringparam
,
2948 .get_pauseparam
= sky2_get_pauseparam
,
2949 .set_pauseparam
= sky2_set_pauseparam
,
2951 .get_wol
= sky2_get_wol
,
2952 .set_wol
= sky2_set_wol
,
2954 .phys_id
= sky2_phys_id
,
2955 .get_stats_count
= sky2_get_stats_count
,
2956 .get_ethtool_stats
= sky2_get_ethtool_stats
,
2957 .get_perm_addr
= ethtool_op_get_perm_addr
,
2960 /* Initialize network device */
2961 static __devinit
struct net_device
*sky2_init_netdev(struct sky2_hw
*hw
,
2962 unsigned port
, int highmem
)
2964 struct sky2_port
*sky2
;
2965 struct net_device
*dev
= alloc_etherdev(sizeof(*sky2
));
2968 printk(KERN_ERR
"sky2 etherdev alloc failed");
2972 SET_MODULE_OWNER(dev
);
2973 SET_NETDEV_DEV(dev
, &hw
->pdev
->dev
);
2974 dev
->irq
= hw
->pdev
->irq
;
2975 dev
->open
= sky2_up
;
2976 dev
->stop
= sky2_down
;
2977 dev
->do_ioctl
= sky2_ioctl
;
2978 dev
->hard_start_xmit
= sky2_xmit_frame
;
2979 dev
->get_stats
= sky2_get_stats
;
2980 dev
->set_multicast_list
= sky2_set_multicast
;
2981 dev
->set_mac_address
= sky2_set_mac_address
;
2982 dev
->change_mtu
= sky2_change_mtu
;
2983 SET_ETHTOOL_OPS(dev
, &sky2_ethtool_ops
);
2984 dev
->tx_timeout
= sky2_tx_timeout
;
2985 dev
->watchdog_timeo
= TX_WATCHDOG
;
2987 dev
->poll
= sky2_poll
;
2988 dev
->weight
= NAPI_WEIGHT
;
2989 #ifdef CONFIG_NET_POLL_CONTROLLER
2990 dev
->poll_controller
= sky2_netpoll
;
2993 sky2
= netdev_priv(dev
);
2996 sky2
->msg_enable
= netif_msg_init(debug
, default_msg
);
2998 spin_lock_init(&sky2
->tx_lock
);
2999 /* Auto speed and flow control */
3000 sky2
->autoneg
= AUTONEG_ENABLE
;
3005 sky2
->advertising
= sky2_supported_modes(hw
);
3007 /* Receive checksum disabled for Yukon XL
3008 * because of observed problems with incorrect
3009 * values when multiple packets are received in one interrupt
3011 sky2
->rx_csum
= (hw
->chip_id
!= CHIP_ID_YUKON_XL
);
3013 INIT_WORK(&sky2
->phy_task
, sky2_phy_task
, sky2
);
3014 init_MUTEX(&sky2
->phy_sema
);
3015 sky2
->tx_pending
= TX_DEF_PENDING
;
3016 sky2
->rx_pending
= is_ec_a1(hw
) ? 8 : RX_DEF_PENDING
;
3017 sky2
->rx_bufsize
= sky2_buf_size(ETH_DATA_LEN
);
3019 hw
->dev
[port
] = dev
;
3023 dev
->features
|= NETIF_F_LLTX
;
3024 if (hw
->chip_id
!= CHIP_ID_YUKON_EC_U
)
3025 dev
->features
|= NETIF_F_TSO
;
3027 dev
->features
|= NETIF_F_HIGHDMA
;
3028 dev
->features
|= NETIF_F_IP_CSUM
| NETIF_F_SG
;
3030 #ifdef SKY2_VLAN_TAG_USED
3031 dev
->features
|= NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX
;
3032 dev
->vlan_rx_register
= sky2_vlan_rx_register
;
3033 dev
->vlan_rx_kill_vid
= sky2_vlan_rx_kill_vid
;
3036 /* read the mac address */
3037 memcpy_fromio(dev
->dev_addr
, hw
->regs
+ B2_MAC_1
+ port
* 8, ETH_ALEN
);
3038 memcpy(dev
->perm_addr
, dev
->dev_addr
, dev
->addr_len
);
3040 /* device is off until link detection */
3041 netif_carrier_off(dev
);
3042 netif_stop_queue(dev
);
3047 static void __devinit
sky2_show_addr(struct net_device
*dev
)
3049 const struct sky2_port
*sky2
= netdev_priv(dev
);
3051 if (netif_msg_probe(sky2
))
3052 printk(KERN_INFO PFX
"%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
3054 dev
->dev_addr
[0], dev
->dev_addr
[1], dev
->dev_addr
[2],
3055 dev
->dev_addr
[3], dev
->dev_addr
[4], dev
->dev_addr
[5]);
3058 static int __devinit
sky2_probe(struct pci_dev
*pdev
,
3059 const struct pci_device_id
*ent
)
3061 struct net_device
*dev
, *dev1
= NULL
;
3063 int err
, pm_cap
, using_dac
= 0;
3065 err
= pci_enable_device(pdev
);
3067 printk(KERN_ERR PFX
"%s cannot enable PCI device\n",
3072 err
= pci_request_regions(pdev
, DRV_NAME
);
3074 printk(KERN_ERR PFX
"%s cannot obtain PCI resources\n",
3079 pci_set_master(pdev
);
3081 /* Find power-management capability. */
3082 pm_cap
= pci_find_capability(pdev
, PCI_CAP_ID_PM
);
3084 printk(KERN_ERR PFX
"Cannot find PowerManagement capability, "
3087 goto err_out_free_regions
;
3090 if (sizeof(dma_addr_t
) > sizeof(u32
) &&
3091 !(err
= pci_set_dma_mask(pdev
, DMA_64BIT_MASK
))) {
3093 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
3095 printk(KERN_ERR PFX
"%s unable to obtain 64 bit DMA "
3096 "for consistent allocations\n", pci_name(pdev
));
3097 goto err_out_free_regions
;
3101 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
3103 printk(KERN_ERR PFX
"%s no usable DMA configuration\n",
3105 goto err_out_free_regions
;
3110 /* byte swap descriptors in hardware */
3114 pci_read_config_dword(pdev
, PCI_DEV_REG2
, ®
);
3115 reg
|= PCI_REV_DESC
;
3116 pci_write_config_dword(pdev
, PCI_DEV_REG2
, reg
);
3121 hw
= kzalloc(sizeof(*hw
), GFP_KERNEL
);
3123 printk(KERN_ERR PFX
"%s: cannot allocate hardware struct\n",
3125 goto err_out_free_regions
;
3130 hw
->regs
= ioremap_nocache(pci_resource_start(pdev
, 0), 0x4000);
3132 printk(KERN_ERR PFX
"%s: cannot map device registers\n",
3134 goto err_out_free_hw
;
3136 hw
->pm_cap
= pm_cap
;
3138 err
= sky2_reset(hw
);
3140 goto err_out_iounmap
;
3142 printk(KERN_INFO PFX
"v%s addr 0x%lx irq %d Yukon-%s (0x%x) rev %d\n",
3143 DRV_VERSION
, pci_resource_start(pdev
, 0), pdev
->irq
,
3144 yukon2_name
[hw
->chip_id
- CHIP_ID_YUKON_XL
],
3145 hw
->chip_id
, hw
->chip_rev
);
3147 dev
= sky2_init_netdev(hw
, 0, using_dac
);
3149 goto err_out_free_pci
;
3151 err
= register_netdev(dev
);
3153 printk(KERN_ERR PFX
"%s: cannot register net device\n",
3155 goto err_out_free_netdev
;
3158 sky2_show_addr(dev
);
3160 if (hw
->ports
> 1 && (dev1
= sky2_init_netdev(hw
, 1, using_dac
))) {
3161 if (register_netdev(dev1
) == 0)
3162 sky2_show_addr(dev1
);
3164 /* Failure to register second port need not be fatal */
3165 printk(KERN_WARNING PFX
3166 "register of second port failed\n");
3172 err
= request_irq(pdev
->irq
, sky2_intr
, SA_SHIRQ
, DRV_NAME
, hw
);
3174 printk(KERN_ERR PFX
"%s: cannot assign irq %d\n",
3175 pci_name(pdev
), pdev
->irq
);
3176 goto err_out_unregister
;
3179 hw
->intr_mask
= Y2_IS_BASE
;
3180 sky2_write32(hw
, B0_IMSK
, hw
->intr_mask
);
3182 pci_set_drvdata(pdev
, hw
);
3188 unregister_netdev(dev1
);
3191 unregister_netdev(dev
);
3192 err_out_free_netdev
:
3195 sky2_write8(hw
, B0_CTST
, CS_RST_SET
);
3196 pci_free_consistent(hw
->pdev
, STATUS_LE_BYTES
, hw
->st_le
, hw
->st_dma
);
3201 err_out_free_regions
:
3202 pci_release_regions(pdev
);
3203 pci_disable_device(pdev
);
3208 static void __devexit
sky2_remove(struct pci_dev
*pdev
)
3210 struct sky2_hw
*hw
= pci_get_drvdata(pdev
);
3211 struct net_device
*dev0
, *dev1
;
3219 unregister_netdev(dev1
);
3220 unregister_netdev(dev0
);
3222 sky2_write32(hw
, B0_IMSK
, 0);
3223 sky2_set_power_state(hw
, PCI_D3hot
);
3224 sky2_write16(hw
, B0_Y2LED
, LED_STAT_OFF
);
3225 sky2_write8(hw
, B0_CTST
, CS_RST_SET
);
3226 sky2_read8(hw
, B0_CTST
);
3228 free_irq(pdev
->irq
, hw
);
3229 pci_free_consistent(pdev
, STATUS_LE_BYTES
, hw
->st_le
, hw
->st_dma
);
3230 pci_release_regions(pdev
);
3231 pci_disable_device(pdev
);
3239 pci_set_drvdata(pdev
, NULL
);
3243 static int sky2_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3245 struct sky2_hw
*hw
= pci_get_drvdata(pdev
);
3248 for (i
= 0; i
< 2; i
++) {
3249 struct net_device
*dev
= hw
->dev
[i
];
3252 if (!netif_running(dev
))
3256 netif_device_detach(dev
);
3260 return sky2_set_power_state(hw
, pci_choose_state(pdev
, state
));
3263 static int sky2_resume(struct pci_dev
*pdev
)
3265 struct sky2_hw
*hw
= pci_get_drvdata(pdev
);
3268 pci_restore_state(pdev
);
3269 pci_enable_wake(pdev
, PCI_D0
, 0);
3270 sky2_set_power_state(hw
, PCI_D0
);
3274 for (i
= 0; i
< 2; i
++) {
3275 struct net_device
*dev
= hw
->dev
[i
];
3277 if (netif_running(dev
)) {
3278 netif_device_attach(dev
);
3288 static struct pci_driver sky2_driver
= {
3290 .id_table
= sky2_id_table
,
3291 .probe
= sky2_probe
,
3292 .remove
= __devexit_p(sky2_remove
),
3294 .suspend
= sky2_suspend
,
3295 .resume
= sky2_resume
,
3299 static int __init
sky2_init_module(void)
3301 return pci_register_driver(&sky2_driver
);
3304 static void __exit
sky2_cleanup_module(void)
3306 pci_unregister_driver(&sky2_driver
);
3309 module_init(sky2_init_module
);
3310 module_exit(sky2_cleanup_module
);
3312 MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver");
3313 MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>");
3314 MODULE_LICENSE("GPL");
3315 MODULE_VERSION(DRV_VERSION
);