2 * New driver for Marvell Yukon 2 chipset.
3 * Based on earlier sk98lin, and skge driver.
5 * This driver intentionally does not support all the features
6 * of the original driver such as link fail-over and link management because
7 * those should be done at higher levels.
9 * Copyright (C) 2005 Stephen Hemminger <shemminger@osdl.org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <linux/crc32.h>
26 #include <linux/kernel.h>
27 #include <linux/version.h>
28 #include <linux/module.h>
29 #include <linux/netdevice.h>
30 #include <linux/dma-mapping.h>
31 #include <linux/etherdevice.h>
32 #include <linux/ethtool.h>
33 #include <linux/pci.h>
36 #include <linux/tcp.h>
38 #include <linux/delay.h>
39 #include <linux/workqueue.h>
40 #include <linux/if_vlan.h>
41 #include <linux/prefetch.h>
42 #include <linux/debugfs.h>
43 #include <linux/mii.h>
47 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
48 #define SKY2_VLAN_TAG_USED 1
53 #define DRV_NAME "sky2"
54 #define DRV_VERSION "1.21"
55 #define PFX DRV_NAME " "
58 * The Yukon II chipset takes 64 bit command blocks (called list elements)
59 * that are organized into three (receive, transmit, status) different rings
63 #define RX_LE_SIZE 1024
64 #define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le))
65 #define RX_MAX_PENDING (RX_LE_SIZE/6 - 2)
66 #define RX_DEF_PENDING RX_MAX_PENDING
68 #define TX_RING_SIZE 512
69 #define TX_DEF_PENDING (TX_RING_SIZE - 1)
70 #define TX_MIN_PENDING 64
71 #define MAX_SKB_TX_LE (4 + (sizeof(dma_addr_t)/sizeof(u32))*MAX_SKB_FRAGS)
73 #define STATUS_RING_SIZE 2048 /* 2 ports * (TX + 2*RX) */
74 #define STATUS_LE_BYTES (STATUS_RING_SIZE*sizeof(struct sky2_status_le))
75 #define TX_WATCHDOG (5 * HZ)
76 #define NAPI_WEIGHT 64
77 #define PHY_RETRIES 1000
79 #define SKY2_EEPROM_MAGIC 0x9955aabb
82 #define RING_NEXT(x,s) (((x)+1) & ((s)-1))
84 static const u32 default_msg
=
85 NETIF_MSG_DRV
| NETIF_MSG_PROBE
| NETIF_MSG_LINK
86 | NETIF_MSG_TIMER
| NETIF_MSG_TX_ERR
| NETIF_MSG_RX_ERR
87 | NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
;
89 static int debug
= -1; /* defaults above */
90 module_param(debug
, int, 0);
91 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
93 static int copybreak __read_mostly
= 128;
94 module_param(copybreak
, int, 0);
95 MODULE_PARM_DESC(copybreak
, "Receive copy threshold");
97 static int disable_msi
= 0;
98 module_param(disable_msi
, int, 0);
99 MODULE_PARM_DESC(disable_msi
, "Disable Message Signaled Interrupt (MSI)");
101 static const struct pci_device_id sky2_id_table
[] = {
102 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT
, 0x9000) }, /* SK-9Sxx */
103 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT
, 0x9E00) }, /* SK-9Exx */
104 { PCI_DEVICE(PCI_VENDOR_ID_DLINK
, 0x4b00) }, /* DGE-560T */
105 { PCI_DEVICE(PCI_VENDOR_ID_DLINK
, 0x4001) }, /* DGE-550SX */
106 { PCI_DEVICE(PCI_VENDOR_ID_DLINK
, 0x4B02) }, /* DGE-560SX */
107 { PCI_DEVICE(PCI_VENDOR_ID_DLINK
, 0x4B03) }, /* DGE-550T */
108 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4340) }, /* 88E8021 */
109 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4341) }, /* 88E8022 */
110 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4342) }, /* 88E8061 */
111 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4343) }, /* 88E8062 */
112 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4344) }, /* 88E8021 */
113 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4345) }, /* 88E8022 */
114 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4346) }, /* 88E8061 */
115 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4347) }, /* 88E8062 */
116 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4350) }, /* 88E8035 */
117 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4351) }, /* 88E8036 */
118 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4352) }, /* 88E8038 */
119 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4353) }, /* 88E8039 */
120 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4354) }, /* 88E8040 */
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 */
142 MODULE_DEVICE_TABLE(pci
, sky2_id_table
);
144 /* Avoid conditionals by using array */
145 static const unsigned txqaddr
[] = { Q_XA1
, Q_XA2
};
146 static const unsigned rxqaddr
[] = { Q_R1
, Q_R2
};
147 static const u32 portirq_msk
[] = { Y2_IS_PORT_1
, Y2_IS_PORT_2
};
149 /* This driver supports yukon2 chipset only */
150 static const char *yukon2_name
[] = {
152 "EC Ultra", /* 0xb4 */
153 "Extreme", /* 0xb5 */
157 "Supreme", /* 0xb9 */
160 static void sky2_set_multicast(struct net_device
*dev
);
162 /* Access to PHY via serial interconnect */
163 static int gm_phy_write(struct sky2_hw
*hw
, unsigned port
, u16 reg
, u16 val
)
167 gma_write16(hw
, port
, GM_SMI_DATA
, val
);
168 gma_write16(hw
, port
, GM_SMI_CTRL
,
169 GM_SMI_CT_PHY_AD(PHY_ADDR_MARV
) | GM_SMI_CT_REG_AD(reg
));
171 for (i
= 0; i
< PHY_RETRIES
; i
++) {
172 u16 ctrl
= gma_read16(hw
, port
, GM_SMI_CTRL
);
176 if (!(ctrl
& GM_SMI_CT_BUSY
))
182 dev_warn(&hw
->pdev
->dev
,"%s: phy write timeout\n", hw
->dev
[port
]->name
);
186 dev_err(&hw
->pdev
->dev
, "%s: phy I/O error\n", hw
->dev
[port
]->name
);
190 static int __gm_phy_read(struct sky2_hw
*hw
, unsigned port
, u16 reg
, u16
*val
)
194 gma_write16(hw
, port
, GM_SMI_CTRL
, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV
)
195 | GM_SMI_CT_REG_AD(reg
) | GM_SMI_CT_OP_RD
);
197 for (i
= 0; i
< PHY_RETRIES
; i
++) {
198 u16 ctrl
= gma_read16(hw
, port
, GM_SMI_CTRL
);
202 if (ctrl
& GM_SMI_CT_RD_VAL
) {
203 *val
= gma_read16(hw
, port
, GM_SMI_DATA
);
210 dev_warn(&hw
->pdev
->dev
, "%s: phy read timeout\n", hw
->dev
[port
]->name
);
213 dev_err(&hw
->pdev
->dev
, "%s: phy I/O error\n", hw
->dev
[port
]->name
);
217 static inline u16
gm_phy_read(struct sky2_hw
*hw
, unsigned port
, u16 reg
)
220 __gm_phy_read(hw
, port
, reg
, &v
);
225 static void sky2_power_on(struct sky2_hw
*hw
)
227 /* switch power to VCC (WA for VAUX problem) */
228 sky2_write8(hw
, B0_POWER_CTRL
,
229 PC_VAUX_ENA
| PC_VCC_ENA
| PC_VAUX_OFF
| PC_VCC_ON
);
231 /* disable Core Clock Division, */
232 sky2_write32(hw
, B2_Y2_CLK_CTRL
, Y2_CLK_DIV_DIS
);
234 if (hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
> 1)
235 /* enable bits are inverted */
236 sky2_write8(hw
, B2_Y2_CLK_GATE
,
237 Y2_PCI_CLK_LNK1_DIS
| Y2_COR_CLK_LNK1_DIS
|
238 Y2_CLK_GAT_LNK1_DIS
| Y2_PCI_CLK_LNK2_DIS
|
239 Y2_COR_CLK_LNK2_DIS
| Y2_CLK_GAT_LNK2_DIS
);
241 sky2_write8(hw
, B2_Y2_CLK_GATE
, 0);
243 if (hw
->flags
& SKY2_HW_ADV_POWER_CTL
) {
246 sky2_pci_write32(hw
, PCI_DEV_REG3
, 0);
248 reg
= sky2_pci_read32(hw
, PCI_DEV_REG4
);
249 /* set all bits to 0 except bits 15..12 and 8 */
250 reg
&= P_ASPM_CONTROL_MSK
;
251 sky2_pci_write32(hw
, PCI_DEV_REG4
, reg
);
253 reg
= sky2_pci_read32(hw
, PCI_DEV_REG5
);
254 /* set all bits to 0 except bits 28 & 27 */
255 reg
&= P_CTL_TIM_VMAIN_AV_MSK
;
256 sky2_pci_write32(hw
, PCI_DEV_REG5
, reg
);
258 sky2_pci_write32(hw
, PCI_CFG_REG_1
, 0);
260 /* Enable workaround for dev 4.107 on Yukon-Ultra & Extreme */
261 reg
= sky2_read32(hw
, B2_GP_IO
);
262 reg
|= GLB_GPIO_STAT_RACE_DIS
;
263 sky2_write32(hw
, B2_GP_IO
, reg
);
265 sky2_read32(hw
, B2_GP_IO
);
269 static void sky2_power_aux(struct sky2_hw
*hw
)
271 if (hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
> 1)
272 sky2_write8(hw
, B2_Y2_CLK_GATE
, 0);
274 /* enable bits are inverted */
275 sky2_write8(hw
, B2_Y2_CLK_GATE
,
276 Y2_PCI_CLK_LNK1_DIS
| Y2_COR_CLK_LNK1_DIS
|
277 Y2_CLK_GAT_LNK1_DIS
| Y2_PCI_CLK_LNK2_DIS
|
278 Y2_COR_CLK_LNK2_DIS
| Y2_CLK_GAT_LNK2_DIS
);
280 /* switch power to VAUX */
281 if (sky2_read16(hw
, B0_CTST
) & Y2_VAUX_AVAIL
)
282 sky2_write8(hw
, B0_POWER_CTRL
,
283 (PC_VAUX_ENA
| PC_VCC_ENA
|
284 PC_VAUX_ON
| PC_VCC_OFF
));
287 static void sky2_gmac_reset(struct sky2_hw
*hw
, unsigned port
)
291 /* disable all GMAC IRQ's */
292 sky2_write8(hw
, SK_REG(port
, GMAC_IRQ_MSK
), 0);
294 gma_write16(hw
, port
, GM_MC_ADDR_H1
, 0); /* clear MC hash */
295 gma_write16(hw
, port
, GM_MC_ADDR_H2
, 0);
296 gma_write16(hw
, port
, GM_MC_ADDR_H3
, 0);
297 gma_write16(hw
, port
, GM_MC_ADDR_H4
, 0);
299 reg
= gma_read16(hw
, port
, GM_RX_CTRL
);
300 reg
|= GM_RXCR_UCF_ENA
| GM_RXCR_MCF_ENA
;
301 gma_write16(hw
, port
, GM_RX_CTRL
, reg
);
304 /* flow control to advertise bits */
305 static const u16 copper_fc_adv
[] = {
307 [FC_TX
] = PHY_M_AN_ASP
,
308 [FC_RX
] = PHY_M_AN_PC
,
309 [FC_BOTH
] = PHY_M_AN_PC
| PHY_M_AN_ASP
,
312 /* flow control to advertise bits when using 1000BaseX */
313 static const u16 fiber_fc_adv
[] = {
314 [FC_NONE
] = PHY_M_P_NO_PAUSE_X
,
315 [FC_TX
] = PHY_M_P_ASYM_MD_X
,
316 [FC_RX
] = PHY_M_P_SYM_MD_X
,
317 [FC_BOTH
] = PHY_M_P_BOTH_MD_X
,
320 /* flow control to GMA disable bits */
321 static const u16 gm_fc_disable
[] = {
322 [FC_NONE
] = GM_GPCR_FC_RX_DIS
| GM_GPCR_FC_TX_DIS
,
323 [FC_TX
] = GM_GPCR_FC_RX_DIS
,
324 [FC_RX
] = GM_GPCR_FC_TX_DIS
,
329 static void sky2_phy_init(struct sky2_hw
*hw
, unsigned port
)
331 struct sky2_port
*sky2
= netdev_priv(hw
->dev
[port
]);
332 u16 ctrl
, ct1000
, adv
, pg
, ledctrl
, ledover
, reg
;
334 if (sky2
->autoneg
== AUTONEG_ENABLE
&&
335 !(hw
->flags
& SKY2_HW_NEWER_PHY
)) {
336 u16 ectrl
= gm_phy_read(hw
, port
, PHY_MARV_EXT_CTRL
);
338 ectrl
&= ~(PHY_M_EC_M_DSC_MSK
| PHY_M_EC_S_DSC_MSK
|
340 ectrl
|= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ
);
342 /* on PHY 88E1040 Rev.D0 (and newer) downshift control changed */
343 if (hw
->chip_id
== CHIP_ID_YUKON_EC
)
344 /* set downshift counter to 3x and enable downshift */
345 ectrl
|= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA
;
347 /* set master & slave downshift counter to 1x */
348 ectrl
|= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
350 gm_phy_write(hw
, port
, PHY_MARV_EXT_CTRL
, ectrl
);
353 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_PHY_CTRL
);
354 if (sky2_is_copper(hw
)) {
355 if (!(hw
->flags
& SKY2_HW_GIGABIT
)) {
356 /* enable automatic crossover */
357 ctrl
|= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO
) >> 1;
359 if (hw
->chip_id
== CHIP_ID_YUKON_FE_P
&&
360 hw
->chip_rev
== CHIP_REV_YU_FE2_A0
) {
363 /* Enable Class A driver for FE+ A0 */
364 spec
= gm_phy_read(hw
, port
, PHY_MARV_FE_SPEC_2
);
365 spec
|= PHY_M_FESC_SEL_CL_A
;
366 gm_phy_write(hw
, port
, PHY_MARV_FE_SPEC_2
, spec
);
369 /* disable energy detect */
370 ctrl
&= ~PHY_M_PC_EN_DET_MSK
;
372 /* enable automatic crossover */
373 ctrl
|= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO
);
375 /* downshift on PHY 88E1112 and 88E1149 is changed */
376 if (sky2
->autoneg
== AUTONEG_ENABLE
377 && (hw
->flags
& SKY2_HW_NEWER_PHY
)) {
378 /* set downshift counter to 3x and enable downshift */
379 ctrl
&= ~PHY_M_PC_DSC_MSK
;
380 ctrl
|= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA
;
384 /* workaround for deviation #4.88 (CRC errors) */
385 /* disable Automatic Crossover */
387 ctrl
&= ~PHY_M_PC_MDIX_MSK
;
390 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, ctrl
);
392 /* special setup for PHY 88E1112 Fiber */
393 if (hw
->chip_id
== CHIP_ID_YUKON_XL
&& (hw
->flags
& SKY2_HW_FIBRE_PHY
)) {
394 pg
= gm_phy_read(hw
, port
, PHY_MARV_EXT_ADR
);
396 /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */
397 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 2);
398 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_PHY_CTRL
);
399 ctrl
&= ~PHY_M_MAC_MD_MSK
;
400 ctrl
|= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX
);
401 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, ctrl
);
403 if (hw
->pmd_type
== 'P') {
404 /* select page 1 to access Fiber registers */
405 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 1);
407 /* for SFP-module set SIGDET polarity to low */
408 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_PHY_CTRL
);
409 ctrl
|= PHY_M_FIB_SIGD_POL
;
410 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, ctrl
);
413 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, pg
);
421 if (sky2
->autoneg
== AUTONEG_ENABLE
) {
422 if (sky2_is_copper(hw
)) {
423 if (sky2
->advertising
& ADVERTISED_1000baseT_Full
)
424 ct1000
|= PHY_M_1000C_AFD
;
425 if (sky2
->advertising
& ADVERTISED_1000baseT_Half
)
426 ct1000
|= PHY_M_1000C_AHD
;
427 if (sky2
->advertising
& ADVERTISED_100baseT_Full
)
428 adv
|= PHY_M_AN_100_FD
;
429 if (sky2
->advertising
& ADVERTISED_100baseT_Half
)
430 adv
|= PHY_M_AN_100_HD
;
431 if (sky2
->advertising
& ADVERTISED_10baseT_Full
)
432 adv
|= PHY_M_AN_10_FD
;
433 if (sky2
->advertising
& ADVERTISED_10baseT_Half
)
434 adv
|= PHY_M_AN_10_HD
;
436 adv
|= copper_fc_adv
[sky2
->flow_mode
];
437 } else { /* special defines for FIBER (88E1040S only) */
438 if (sky2
->advertising
& ADVERTISED_1000baseT_Full
)
439 adv
|= PHY_M_AN_1000X_AFD
;
440 if (sky2
->advertising
& ADVERTISED_1000baseT_Half
)
441 adv
|= PHY_M_AN_1000X_AHD
;
443 adv
|= fiber_fc_adv
[sky2
->flow_mode
];
446 /* Restart Auto-negotiation */
447 ctrl
|= PHY_CT_ANE
| PHY_CT_RE_CFG
;
449 /* forced speed/duplex settings */
450 ct1000
= PHY_M_1000C_MSE
;
452 /* Disable auto update for duplex flow control and speed */
453 reg
|= GM_GPCR_AU_ALL_DIS
;
455 switch (sky2
->speed
) {
457 ctrl
|= PHY_CT_SP1000
;
458 reg
|= GM_GPCR_SPEED_1000
;
461 ctrl
|= PHY_CT_SP100
;
462 reg
|= GM_GPCR_SPEED_100
;
466 if (sky2
->duplex
== DUPLEX_FULL
) {
467 reg
|= GM_GPCR_DUP_FULL
;
468 ctrl
|= PHY_CT_DUP_MD
;
469 } else if (sky2
->speed
< SPEED_1000
)
470 sky2
->flow_mode
= FC_NONE
;
473 reg
|= gm_fc_disable
[sky2
->flow_mode
];
475 /* Forward pause packets to GMAC? */
476 if (sky2
->flow_mode
& FC_RX
)
477 sky2_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_ON
);
479 sky2_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_OFF
);
482 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
484 if (hw
->flags
& SKY2_HW_GIGABIT
)
485 gm_phy_write(hw
, port
, PHY_MARV_1000T_CTRL
, ct1000
);
487 gm_phy_write(hw
, port
, PHY_MARV_AUNE_ADV
, adv
);
488 gm_phy_write(hw
, port
, PHY_MARV_CTRL
, ctrl
);
490 /* Setup Phy LED's */
491 ledctrl
= PHY_M_LED_PULS_DUR(PULS_170MS
);
494 switch (hw
->chip_id
) {
495 case CHIP_ID_YUKON_FE
:
496 /* on 88E3082 these bits are at 11..9 (shifted left) */
497 ledctrl
|= PHY_M_LED_BLINK_RT(BLINK_84MS
) << 1;
499 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_FE_LED_PAR
);
501 /* delete ACT LED control bits */
502 ctrl
&= ~PHY_M_FELP_LED1_MSK
;
503 /* change ACT LED control to blink mode */
504 ctrl
|= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL
);
505 gm_phy_write(hw
, port
, PHY_MARV_FE_LED_PAR
, ctrl
);
508 case CHIP_ID_YUKON_FE_P
:
509 /* Enable Link Partner Next Page */
510 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_PHY_CTRL
);
511 ctrl
|= PHY_M_PC_ENA_LIP_NP
;
513 /* disable Energy Detect and enable scrambler */
514 ctrl
&= ~(PHY_M_PC_ENA_ENE_DT
| PHY_M_PC_DIS_SCRAMB
);
515 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, ctrl
);
517 /* set LED2 -> ACT, LED1 -> LINK, LED0 -> SPEED */
518 ctrl
= PHY_M_FELP_LED2_CTRL(LED_PAR_CTRL_ACT_BL
) |
519 PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_LINK
) |
520 PHY_M_FELP_LED0_CTRL(LED_PAR_CTRL_SPEED
);
522 gm_phy_write(hw
, port
, PHY_MARV_FE_LED_PAR
, ctrl
);
525 case CHIP_ID_YUKON_XL
:
526 pg
= gm_phy_read(hw
, port
, PHY_MARV_EXT_ADR
);
528 /* select page 3 to access LED control register */
529 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 3);
531 /* set LED Function Control register */
532 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
,
533 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
534 PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */
535 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
536 PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */
538 /* set Polarity Control register */
539 gm_phy_write(hw
, port
, PHY_MARV_PHY_STAT
,
540 (PHY_M_POLC_LS1_P_MIX(4) |
541 PHY_M_POLC_IS0_P_MIX(4) |
542 PHY_M_POLC_LOS_CTRL(2) |
543 PHY_M_POLC_INIT_CTRL(2) |
544 PHY_M_POLC_STA1_CTRL(2) |
545 PHY_M_POLC_STA0_CTRL(2)));
547 /* restore page register */
548 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, pg
);
551 case CHIP_ID_YUKON_EC_U
:
552 case CHIP_ID_YUKON_EX
:
553 case CHIP_ID_YUKON_SUPR
:
554 pg
= gm_phy_read(hw
, port
, PHY_MARV_EXT_ADR
);
556 /* select page 3 to access LED control register */
557 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 3);
559 /* set LED Function Control register */
560 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
,
561 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
562 PHY_M_LEDC_INIT_CTRL(8) | /* 10 Mbps */
563 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
564 PHY_M_LEDC_STA0_CTRL(7)));/* 1000 Mbps */
566 /* set Blink Rate in LED Timer Control Register */
567 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
,
568 ledctrl
| PHY_M_LED_BLINK_RT(BLINK_84MS
));
569 /* restore page register */
570 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, pg
);
574 /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
575 ledctrl
|= PHY_M_LED_BLINK_RT(BLINK_84MS
) | PHY_M_LEDC_TX_CTRL
;
577 /* turn off the Rx LED (LED_RX) */
578 ledover
|= PHY_M_LED_MO_RX(MO_LED_OFF
);
581 if (hw
->chip_id
== CHIP_ID_YUKON_EC_U
&&
582 hw
->chip_rev
== CHIP_REV_YU_EC_U_A1
) {
583 /* apply fixes in PHY AFE */
584 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 255);
586 /* increase differential signal amplitude in 10BASE-T */
587 gm_phy_write(hw
, port
, 0x18, 0xaa99);
588 gm_phy_write(hw
, port
, 0x17, 0x2011);
590 /* fix for IEEE A/B Symmetry failure in 1000BASE-T */
591 gm_phy_write(hw
, port
, 0x18, 0xa204);
592 gm_phy_write(hw
, port
, 0x17, 0x2002);
594 /* set page register to 0 */
595 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 0);
596 } else if (hw
->chip_id
== CHIP_ID_YUKON_FE_P
&&
597 hw
->chip_rev
== CHIP_REV_YU_FE2_A0
) {
598 /* apply workaround for integrated resistors calibration */
599 gm_phy_write(hw
, port
, PHY_MARV_PAGE_ADDR
, 17);
600 gm_phy_write(hw
, port
, PHY_MARV_PAGE_DATA
, 0x3f60);
601 } else if (hw
->chip_id
!= CHIP_ID_YUKON_EX
) {
602 /* no effect on Yukon-XL */
603 gm_phy_write(hw
, port
, PHY_MARV_LED_CTRL
, ledctrl
);
605 if (sky2
->autoneg
== AUTONEG_DISABLE
|| sky2
->speed
== SPEED_100
) {
606 /* turn on 100 Mbps LED (LED_LINK100) */
607 ledover
|= PHY_M_LED_MO_100(MO_LED_ON
);
611 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
, ledover
);
615 /* Enable phy interrupt on auto-negotiation complete (or link up) */
616 if (sky2
->autoneg
== AUTONEG_ENABLE
)
617 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_IS_AN_COMPL
);
619 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_DEF_MSK
);
622 static void sky2_phy_power(struct sky2_hw
*hw
, unsigned port
, int onoff
)
625 static const u32 phy_power
[] = { PCI_Y2_PHY1_POWD
, PCI_Y2_PHY2_POWD
};
626 static const u32 coma_mode
[] = { PCI_Y2_PHY1_COMA
, PCI_Y2_PHY2_COMA
};
628 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
629 reg1
= sky2_pci_read32(hw
, PCI_DEV_REG1
);
630 /* Turn on/off phy power saving */
632 reg1
&= ~phy_power
[port
];
634 reg1
|= phy_power
[port
];
636 if (onoff
&& hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
> 1)
637 reg1
|= coma_mode
[port
];
639 sky2_pci_write32(hw
, PCI_DEV_REG1
, reg1
);
640 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
641 sky2_pci_read32(hw
, PCI_DEV_REG1
);
646 /* Force a renegotiation */
647 static void sky2_phy_reinit(struct sky2_port
*sky2
)
649 spin_lock_bh(&sky2
->phy_lock
);
650 sky2_phy_init(sky2
->hw
, sky2
->port
);
651 spin_unlock_bh(&sky2
->phy_lock
);
654 /* Put device in state to listen for Wake On Lan */
655 static void sky2_wol_init(struct sky2_port
*sky2
)
657 struct sky2_hw
*hw
= sky2
->hw
;
658 unsigned port
= sky2
->port
;
659 enum flow_control save_mode
;
663 /* Bring hardware out of reset */
664 sky2_write16(hw
, B0_CTST
, CS_RST_CLR
);
665 sky2_write16(hw
, SK_REG(port
, GMAC_LINK_CTRL
), GMLC_RST_CLR
);
667 sky2_write8(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_CLR
);
668 sky2_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_RST_CLR
);
671 * sky2_reset will re-enable on resume
673 save_mode
= sky2
->flow_mode
;
674 ctrl
= sky2
->advertising
;
676 sky2
->advertising
&= ~(ADVERTISED_1000baseT_Half
|ADVERTISED_1000baseT_Full
);
677 sky2
->flow_mode
= FC_NONE
;
678 sky2_phy_power(hw
, port
, 1);
679 sky2_phy_reinit(sky2
);
681 sky2
->flow_mode
= save_mode
;
682 sky2
->advertising
= ctrl
;
684 /* Set GMAC to no flow control and auto update for speed/duplex */
685 gma_write16(hw
, port
, GM_GP_CTRL
,
686 GM_GPCR_FC_TX_DIS
|GM_GPCR_TX_ENA
|GM_GPCR_RX_ENA
|
687 GM_GPCR_DUP_FULL
|GM_GPCR_FC_RX_DIS
|GM_GPCR_AU_FCT_DIS
);
689 /* Set WOL address */
690 memcpy_toio(hw
->regs
+ WOL_REGS(port
, WOL_MAC_ADDR
),
691 sky2
->netdev
->dev_addr
, ETH_ALEN
);
693 /* Turn on appropriate WOL control bits */
694 sky2_write16(hw
, WOL_REGS(port
, WOL_CTRL_STAT
), WOL_CTL_CLEAR_RESULT
);
696 if (sky2
->wol
& WAKE_PHY
)
697 ctrl
|= WOL_CTL_ENA_PME_ON_LINK_CHG
|WOL_CTL_ENA_LINK_CHG_UNIT
;
699 ctrl
|= WOL_CTL_DIS_PME_ON_LINK_CHG
|WOL_CTL_DIS_LINK_CHG_UNIT
;
701 if (sky2
->wol
& WAKE_MAGIC
)
702 ctrl
|= WOL_CTL_ENA_PME_ON_MAGIC_PKT
|WOL_CTL_ENA_MAGIC_PKT_UNIT
;
704 ctrl
|= WOL_CTL_DIS_PME_ON_MAGIC_PKT
|WOL_CTL_DIS_MAGIC_PKT_UNIT
;;
706 ctrl
|= WOL_CTL_DIS_PME_ON_PATTERN
|WOL_CTL_DIS_PATTERN_UNIT
;
707 sky2_write16(hw
, WOL_REGS(port
, WOL_CTRL_STAT
), ctrl
);
709 /* Turn on legacy PCI-Express PME mode */
710 reg1
= sky2_pci_read32(hw
, PCI_DEV_REG1
);
711 reg1
|= PCI_Y2_PME_LEGACY
;
712 sky2_pci_write32(hw
, PCI_DEV_REG1
, reg1
);
715 sky2_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_RST_SET
);
719 static void sky2_set_tx_stfwd(struct sky2_hw
*hw
, unsigned port
)
721 struct net_device
*dev
= hw
->dev
[port
];
723 if ( (hw
->chip_id
== CHIP_ID_YUKON_EX
&&
724 hw
->chip_rev
!= CHIP_REV_YU_EX_A0
) ||
725 hw
->chip_id
== CHIP_ID_YUKON_FE_P
||
726 hw
->chip_id
== CHIP_ID_YUKON_SUPR
) {
727 /* Yukon-Extreme B0 and further Extreme devices */
728 /* enable Store & Forward mode for TX */
730 if (dev
->mtu
<= ETH_DATA_LEN
)
731 sky2_write32(hw
, SK_REG(port
, TX_GMF_CTRL_T
),
732 TX_JUMBO_DIS
| TX_STFW_ENA
);
735 sky2_write32(hw
, SK_REG(port
, TX_GMF_CTRL_T
),
736 TX_JUMBO_ENA
| TX_STFW_ENA
);
738 if (dev
->mtu
<= ETH_DATA_LEN
)
739 sky2_write32(hw
, SK_REG(port
, TX_GMF_CTRL_T
), TX_STFW_ENA
);
741 /* set Tx GMAC FIFO Almost Empty Threshold */
742 sky2_write32(hw
, SK_REG(port
, TX_GMF_AE_THR
),
743 (ECU_JUMBO_WM
<< 16) | ECU_AE_THR
);
745 sky2_write32(hw
, SK_REG(port
, TX_GMF_CTRL_T
), TX_STFW_DIS
);
747 /* Can't do offload because of lack of store/forward */
748 dev
->features
&= ~(NETIF_F_TSO
| NETIF_F_SG
| NETIF_F_ALL_CSUM
);
753 static void sky2_mac_init(struct sky2_hw
*hw
, unsigned port
)
755 struct sky2_port
*sky2
= netdev_priv(hw
->dev
[port
]);
759 const u8
*addr
= hw
->dev
[port
]->dev_addr
;
761 sky2_write8(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_SET
);
762 sky2_write8(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_CLR
);
764 sky2_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_RST_CLR
);
766 if (hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
== 0 && port
== 1) {
767 /* WA DEV_472 -- looks like crossed wires on port 2 */
768 /* clear GMAC 1 Control reset */
769 sky2_write8(hw
, SK_REG(0, GMAC_CTRL
), GMC_RST_CLR
);
771 sky2_write8(hw
, SK_REG(1, GMAC_CTRL
), GMC_RST_SET
);
772 sky2_write8(hw
, SK_REG(1, GMAC_CTRL
), GMC_RST_CLR
);
773 } while (gm_phy_read(hw
, 1, PHY_MARV_ID0
) != PHY_MARV_ID0_VAL
||
774 gm_phy_read(hw
, 1, PHY_MARV_ID1
) != PHY_MARV_ID1_Y2
||
775 gm_phy_read(hw
, 1, PHY_MARV_INT_MASK
) != 0);
778 sky2_read16(hw
, SK_REG(port
, GMAC_IRQ_SRC
));
780 /* Enable Transmit FIFO Underrun */
781 sky2_write8(hw
, SK_REG(port
, GMAC_IRQ_MSK
), GMAC_DEF_MSK
);
783 spin_lock_bh(&sky2
->phy_lock
);
784 sky2_phy_init(hw
, port
);
785 spin_unlock_bh(&sky2
->phy_lock
);
788 reg
= gma_read16(hw
, port
, GM_PHY_ADDR
);
789 gma_write16(hw
, port
, GM_PHY_ADDR
, reg
| GM_PAR_MIB_CLR
);
791 for (i
= GM_MIB_CNT_BASE
; i
<= GM_MIB_CNT_END
; i
+= 4)
792 gma_read16(hw
, port
, i
);
793 gma_write16(hw
, port
, GM_PHY_ADDR
, reg
);
795 /* transmit control */
796 gma_write16(hw
, port
, GM_TX_CTRL
, TX_COL_THR(TX_COL_DEF
));
798 /* receive control reg: unicast + multicast + no FCS */
799 gma_write16(hw
, port
, GM_RX_CTRL
,
800 GM_RXCR_UCF_ENA
| GM_RXCR_CRC_DIS
| GM_RXCR_MCF_ENA
);
802 /* transmit flow control */
803 gma_write16(hw
, port
, GM_TX_FLOW_CTRL
, 0xffff);
805 /* transmit parameter */
806 gma_write16(hw
, port
, GM_TX_PARAM
,
807 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF
) |
808 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF
) |
809 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF
) |
810 TX_BACK_OFF_LIM(TX_BOF_LIM_DEF
));
812 /* serial mode register */
813 reg
= DATA_BLIND_VAL(DATA_BLIND_DEF
) |
814 GM_SMOD_VLAN_ENA
| IPG_DATA_VAL(IPG_DATA_DEF
);
816 if (hw
->dev
[port
]->mtu
> ETH_DATA_LEN
)
817 reg
|= GM_SMOD_JUMBO_ENA
;
819 gma_write16(hw
, port
, GM_SERIAL_MODE
, reg
);
821 /* virtual address for data */
822 gma_set_addr(hw
, port
, GM_SRC_ADDR_2L
, addr
);
824 /* physical address: used for pause frames */
825 gma_set_addr(hw
, port
, GM_SRC_ADDR_1L
, addr
);
827 /* ignore counter overflows */
828 gma_write16(hw
, port
, GM_TX_IRQ_MSK
, 0);
829 gma_write16(hw
, port
, GM_RX_IRQ_MSK
, 0);
830 gma_write16(hw
, port
, GM_TR_IRQ_MSK
, 0);
832 /* Configure Rx MAC FIFO */
833 sky2_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_RST_CLR
);
834 rx_reg
= GMF_OPER_ON
| GMF_RX_F_FL_ON
;
835 if (hw
->chip_id
== CHIP_ID_YUKON_EX
||
836 hw
->chip_id
== CHIP_ID_YUKON_FE_P
)
837 rx_reg
|= GMF_RX_OVER_ON
;
839 sky2_write32(hw
, SK_REG(port
, RX_GMF_CTRL_T
), rx_reg
);
841 if (hw
->chip_id
== CHIP_ID_YUKON_XL
) {
842 /* Hardware errata - clear flush mask */
843 sky2_write16(hw
, SK_REG(port
, RX_GMF_FL_MSK
), 0);
845 /* Flush Rx MAC FIFO on any flow control or error */
846 sky2_write16(hw
, SK_REG(port
, RX_GMF_FL_MSK
), GMR_FS_ANY_ERR
);
849 /* Set threshold to 0xa (64 bytes) + 1 to workaround pause bug */
850 reg
= RX_GMF_FL_THR_DEF
+ 1;
851 /* Another magic mystery workaround from sk98lin */
852 if (hw
->chip_id
== CHIP_ID_YUKON_FE_P
&&
853 hw
->chip_rev
== CHIP_REV_YU_FE2_A0
)
855 sky2_write16(hw
, SK_REG(port
, RX_GMF_FL_THR
), reg
);
857 /* Configure Tx MAC FIFO */
858 sky2_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_RST_CLR
);
859 sky2_write16(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_OPER_ON
);
861 /* On chips without ram buffer, pause is controled by MAC level */
862 if (!(hw
->flags
& SKY2_HW_RAM_BUFFER
)) {
863 sky2_write8(hw
, SK_REG(port
, RX_GMF_LP_THR
), 768/8);
864 sky2_write8(hw
, SK_REG(port
, RX_GMF_UP_THR
), 1024/8);
866 sky2_set_tx_stfwd(hw
, port
);
869 if (hw
->chip_id
== CHIP_ID_YUKON_FE_P
&&
870 hw
->chip_rev
== CHIP_REV_YU_FE2_A0
) {
871 /* disable dynamic watermark */
872 reg
= sky2_read16(hw
, SK_REG(port
, TX_GMF_EA
));
873 reg
&= ~TX_DYN_WM_ENA
;
874 sky2_write16(hw
, SK_REG(port
, TX_GMF_EA
), reg
);
878 /* Assign Ram Buffer allocation to queue */
879 static void sky2_ramset(struct sky2_hw
*hw
, u16 q
, u32 start
, u32 space
)
883 /* convert from K bytes to qwords used for hw register */
886 end
= start
+ space
- 1;
888 sky2_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_RST_CLR
);
889 sky2_write32(hw
, RB_ADDR(q
, RB_START
), start
);
890 sky2_write32(hw
, RB_ADDR(q
, RB_END
), end
);
891 sky2_write32(hw
, RB_ADDR(q
, RB_WP
), start
);
892 sky2_write32(hw
, RB_ADDR(q
, RB_RP
), start
);
894 if (q
== Q_R1
|| q
== Q_R2
) {
895 u32 tp
= space
- space
/4;
897 /* On receive queue's set the thresholds
898 * give receiver priority when > 3/4 full
899 * send pause when down to 2K
901 sky2_write32(hw
, RB_ADDR(q
, RB_RX_UTHP
), tp
);
902 sky2_write32(hw
, RB_ADDR(q
, RB_RX_LTHP
), space
/2);
905 sky2_write32(hw
, RB_ADDR(q
, RB_RX_UTPP
), tp
);
906 sky2_write32(hw
, RB_ADDR(q
, RB_RX_LTPP
), space
/4);
908 /* Enable store & forward on Tx queue's because
909 * Tx FIFO is only 1K on Yukon
911 sky2_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_ENA_STFWD
);
914 sky2_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_ENA_OP_MD
);
915 sky2_read8(hw
, RB_ADDR(q
, RB_CTRL
));
918 /* Setup Bus Memory Interface */
919 static void sky2_qset(struct sky2_hw
*hw
, u16 q
)
921 sky2_write32(hw
, Q_ADDR(q
, Q_CSR
), BMU_CLR_RESET
);
922 sky2_write32(hw
, Q_ADDR(q
, Q_CSR
), BMU_OPER_INIT
);
923 sky2_write32(hw
, Q_ADDR(q
, Q_CSR
), BMU_FIFO_OP_ON
);
924 sky2_write32(hw
, Q_ADDR(q
, Q_WM
), BMU_WM_DEFAULT
);
927 /* Setup prefetch unit registers. This is the interface between
928 * hardware and driver list elements
930 static void sky2_prefetch_init(struct sky2_hw
*hw
, u32 qaddr
,
933 sky2_write32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_CTRL
), PREF_UNIT_RST_SET
);
934 sky2_write32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_CTRL
), PREF_UNIT_RST_CLR
);
935 sky2_write32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_ADDR_HI
), addr
>> 32);
936 sky2_write32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_ADDR_LO
), (u32
) addr
);
937 sky2_write16(hw
, Y2_QADDR(qaddr
, PREF_UNIT_LAST_IDX
), last
);
938 sky2_write32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_CTRL
), PREF_UNIT_OP_ON
);
940 sky2_read32(hw
, Y2_QADDR(qaddr
, PREF_UNIT_CTRL
));
943 static inline struct sky2_tx_le
*get_tx_le(struct sky2_port
*sky2
)
945 struct sky2_tx_le
*le
= sky2
->tx_le
+ sky2
->tx_prod
;
947 sky2
->tx_prod
= RING_NEXT(sky2
->tx_prod
, TX_RING_SIZE
);
952 static void tx_init(struct sky2_port
*sky2
)
954 struct sky2_tx_le
*le
;
956 sky2
->tx_prod
= sky2
->tx_cons
= 0;
958 sky2
->tx_last_mss
= 0;
960 le
= get_tx_le(sky2
);
962 le
->opcode
= OP_ADDR64
| HW_OWNER
;
965 static inline struct tx_ring_info
*tx_le_re(struct sky2_port
*sky2
,
966 struct sky2_tx_le
*le
)
968 return sky2
->tx_ring
+ (le
- sky2
->tx_le
);
971 /* Update chip's next pointer */
972 static inline void sky2_put_idx(struct sky2_hw
*hw
, unsigned q
, u16 idx
)
974 /* Make sure write' to descriptors are complete before we tell hardware */
976 sky2_write16(hw
, Y2_QADDR(q
, PREF_UNIT_PUT_IDX
), idx
);
978 /* Synchronize I/O on since next processor may write to tail */
983 static inline struct sky2_rx_le
*sky2_next_rx(struct sky2_port
*sky2
)
985 struct sky2_rx_le
*le
= sky2
->rx_le
+ sky2
->rx_put
;
986 sky2
->rx_put
= RING_NEXT(sky2
->rx_put
, RX_LE_SIZE
);
991 /* Build description to hardware for one receive segment */
992 static void sky2_rx_add(struct sky2_port
*sky2
, u8 op
,
993 dma_addr_t map
, unsigned len
)
995 struct sky2_rx_le
*le
;
997 if (sizeof(dma_addr_t
) > sizeof(u32
)) {
998 le
= sky2_next_rx(sky2
);
999 le
->addr
= cpu_to_le32(upper_32_bits(map
));
1000 le
->opcode
= OP_ADDR64
| HW_OWNER
;
1003 le
= sky2_next_rx(sky2
);
1004 le
->addr
= cpu_to_le32((u32
) map
);
1005 le
->length
= cpu_to_le16(len
);
1006 le
->opcode
= op
| HW_OWNER
;
1009 /* Build description to hardware for one possibly fragmented skb */
1010 static void sky2_rx_submit(struct sky2_port
*sky2
,
1011 const struct rx_ring_info
*re
)
1015 sky2_rx_add(sky2
, OP_PACKET
, re
->data_addr
, sky2
->rx_data_size
);
1017 for (i
= 0; i
< skb_shinfo(re
->skb
)->nr_frags
; i
++)
1018 sky2_rx_add(sky2
, OP_BUFFER
, re
->frag_addr
[i
], PAGE_SIZE
);
1022 static void sky2_rx_map_skb(struct pci_dev
*pdev
, struct rx_ring_info
*re
,
1025 struct sk_buff
*skb
= re
->skb
;
1028 re
->data_addr
= pci_map_single(pdev
, skb
->data
, size
, PCI_DMA_FROMDEVICE
);
1029 pci_unmap_len_set(re
, data_size
, size
);
1031 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++)
1032 re
->frag_addr
[i
] = pci_map_page(pdev
,
1033 skb_shinfo(skb
)->frags
[i
].page
,
1034 skb_shinfo(skb
)->frags
[i
].page_offset
,
1035 skb_shinfo(skb
)->frags
[i
].size
,
1036 PCI_DMA_FROMDEVICE
);
1039 static void sky2_rx_unmap_skb(struct pci_dev
*pdev
, struct rx_ring_info
*re
)
1041 struct sk_buff
*skb
= re
->skb
;
1044 pci_unmap_single(pdev
, re
->data_addr
, pci_unmap_len(re
, data_size
),
1045 PCI_DMA_FROMDEVICE
);
1047 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++)
1048 pci_unmap_page(pdev
, re
->frag_addr
[i
],
1049 skb_shinfo(skb
)->frags
[i
].size
,
1050 PCI_DMA_FROMDEVICE
);
1053 /* Tell chip where to start receive checksum.
1054 * Actually has two checksums, but set both same to avoid possible byte
1057 static void rx_set_checksum(struct sky2_port
*sky2
)
1059 struct sky2_rx_le
*le
= sky2_next_rx(sky2
);
1061 le
->addr
= cpu_to_le32((ETH_HLEN
<< 16) | ETH_HLEN
);
1063 le
->opcode
= OP_TCPSTART
| HW_OWNER
;
1065 sky2_write32(sky2
->hw
,
1066 Q_ADDR(rxqaddr
[sky2
->port
], Q_CSR
),
1067 sky2
->rx_csum
? BMU_ENA_RX_CHKSUM
: BMU_DIS_RX_CHKSUM
);
1071 * The RX Stop command will not work for Yukon-2 if the BMU does not
1072 * reach the end of packet and since we can't make sure that we have
1073 * incoming data, we must reset the BMU while it is not doing a DMA
1074 * transfer. Since it is possible that the RX path is still active,
1075 * the RX RAM buffer will be stopped first, so any possible incoming
1076 * data will not trigger a DMA. After the RAM buffer is stopped, the
1077 * BMU is polled until any DMA in progress is ended and only then it
1080 static void sky2_rx_stop(struct sky2_port
*sky2
)
1082 struct sky2_hw
*hw
= sky2
->hw
;
1083 unsigned rxq
= rxqaddr
[sky2
->port
];
1086 /* disable the RAM Buffer receive queue */
1087 sky2_write8(hw
, RB_ADDR(rxq
, RB_CTRL
), RB_DIS_OP_MD
);
1089 for (i
= 0; i
< 0xffff; i
++)
1090 if (sky2_read8(hw
, RB_ADDR(rxq
, Q_RSL
))
1091 == sky2_read8(hw
, RB_ADDR(rxq
, Q_RL
)))
1094 printk(KERN_WARNING PFX
"%s: receiver stop failed\n",
1095 sky2
->netdev
->name
);
1097 sky2_write32(hw
, Q_ADDR(rxq
, Q_CSR
), BMU_RST_SET
| BMU_FIFO_RST
);
1099 /* reset the Rx prefetch unit */
1100 sky2_write32(hw
, Y2_QADDR(rxq
, PREF_UNIT_CTRL
), PREF_UNIT_RST_SET
);
1104 /* Clean out receive buffer area, assumes receiver hardware stopped */
1105 static void sky2_rx_clean(struct sky2_port
*sky2
)
1109 memset(sky2
->rx_le
, 0, RX_LE_BYTES
);
1110 for (i
= 0; i
< sky2
->rx_pending
; i
++) {
1111 struct rx_ring_info
*re
= sky2
->rx_ring
+ i
;
1114 sky2_rx_unmap_skb(sky2
->hw
->pdev
, re
);
1121 /* Basic MII support */
1122 static int sky2_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
1124 struct mii_ioctl_data
*data
= if_mii(ifr
);
1125 struct sky2_port
*sky2
= netdev_priv(dev
);
1126 struct sky2_hw
*hw
= sky2
->hw
;
1127 int err
= -EOPNOTSUPP
;
1129 if (!netif_running(dev
))
1130 return -ENODEV
; /* Phy still in reset */
1134 data
->phy_id
= PHY_ADDR_MARV
;
1140 spin_lock_bh(&sky2
->phy_lock
);
1141 err
= __gm_phy_read(hw
, sky2
->port
, data
->reg_num
& 0x1f, &val
);
1142 spin_unlock_bh(&sky2
->phy_lock
);
1144 data
->val_out
= val
;
1149 if (!capable(CAP_NET_ADMIN
))
1152 spin_lock_bh(&sky2
->phy_lock
);
1153 err
= gm_phy_write(hw
, sky2
->port
, data
->reg_num
& 0x1f,
1155 spin_unlock_bh(&sky2
->phy_lock
);
1161 #ifdef SKY2_VLAN_TAG_USED
1162 static void sky2_set_vlan_mode(struct sky2_hw
*hw
, u16 port
, bool onoff
)
1165 sky2_write32(hw
, SK_REG(port
, RX_GMF_CTRL_T
),
1167 sky2_write32(hw
, SK_REG(port
, TX_GMF_CTRL_T
),
1170 sky2_write32(hw
, SK_REG(port
, RX_GMF_CTRL_T
),
1172 sky2_write32(hw
, SK_REG(port
, TX_GMF_CTRL_T
),
1177 static void sky2_vlan_rx_register(struct net_device
*dev
, struct vlan_group
*grp
)
1179 struct sky2_port
*sky2
= netdev_priv(dev
);
1180 struct sky2_hw
*hw
= sky2
->hw
;
1181 u16 port
= sky2
->port
;
1183 netif_tx_lock_bh(dev
);
1184 napi_disable(&hw
->napi
);
1187 sky2_set_vlan_mode(hw
, port
, grp
!= NULL
);
1189 sky2_read32(hw
, B0_Y2_SP_LISR
);
1190 napi_enable(&hw
->napi
);
1191 netif_tx_unlock_bh(dev
);
1196 * Allocate an skb for receiving. If the MTU is large enough
1197 * make the skb non-linear with a fragment list of pages.
1199 static struct sk_buff
*sky2_rx_alloc(struct sky2_port
*sky2
)
1201 struct sk_buff
*skb
;
1204 if (sky2
->hw
->flags
& SKY2_HW_RAM_BUFFER
) {
1205 unsigned char *start
;
1207 * Workaround for a bug in FIFO that cause hang
1208 * if the FIFO if the receive buffer is not 64 byte aligned.
1209 * The buffer returned from netdev_alloc_skb is
1210 * aligned except if slab debugging is enabled.
1212 skb
= netdev_alloc_skb(sky2
->netdev
, sky2
->rx_data_size
+ 8);
1215 start
= PTR_ALIGN(skb
->data
, 8);
1216 skb_reserve(skb
, start
- skb
->data
);
1218 skb
= netdev_alloc_skb(sky2
->netdev
,
1219 sky2
->rx_data_size
+ NET_IP_ALIGN
);
1222 skb_reserve(skb
, NET_IP_ALIGN
);
1225 for (i
= 0; i
< sky2
->rx_nfrags
; i
++) {
1226 struct page
*page
= alloc_page(GFP_ATOMIC
);
1230 skb_fill_page_desc(skb
, i
, page
, 0, PAGE_SIZE
);
1240 static inline void sky2_rx_update(struct sky2_port
*sky2
, unsigned rxq
)
1242 sky2_put_idx(sky2
->hw
, rxq
, sky2
->rx_put
);
1246 * Allocate and setup receiver buffer pool.
1247 * Normal case this ends up creating one list element for skb
1248 * in the receive ring. Worst case if using large MTU and each
1249 * allocation falls on a different 64 bit region, that results
1250 * in 6 list elements per ring entry.
1251 * One element is used for checksum enable/disable, and one
1252 * extra to avoid wrap.
1254 static int sky2_rx_start(struct sky2_port
*sky2
)
1256 struct sky2_hw
*hw
= sky2
->hw
;
1257 struct rx_ring_info
*re
;
1258 unsigned rxq
= rxqaddr
[sky2
->port
];
1259 unsigned i
, size
, thresh
;
1261 sky2
->rx_put
= sky2
->rx_next
= 0;
1264 /* On PCI express lowering the watermark gives better performance */
1265 if (pci_find_capability(hw
->pdev
, PCI_CAP_ID_EXP
))
1266 sky2_write32(hw
, Q_ADDR(rxq
, Q_WM
), BMU_WM_PEX
);
1268 /* These chips have no ram buffer?
1269 * MAC Rx RAM Read is controlled by hardware */
1270 if (hw
->chip_id
== CHIP_ID_YUKON_EC_U
&&
1271 (hw
->chip_rev
== CHIP_REV_YU_EC_U_A1
1272 || hw
->chip_rev
== CHIP_REV_YU_EC_U_B0
))
1273 sky2_write32(hw
, Q_ADDR(rxq
, Q_TEST
), F_M_RX_RAM_DIS
);
1275 sky2_prefetch_init(hw
, rxq
, sky2
->rx_le_map
, RX_LE_SIZE
- 1);
1277 if (!(hw
->flags
& SKY2_HW_NEW_LE
))
1278 rx_set_checksum(sky2
);
1280 /* Space needed for frame data + headers rounded up */
1281 size
= roundup(sky2
->netdev
->mtu
+ ETH_HLEN
+ VLAN_HLEN
, 8);
1283 /* Stopping point for hardware truncation */
1284 thresh
= (size
- 8) / sizeof(u32
);
1286 sky2
->rx_nfrags
= size
>> PAGE_SHIFT
;
1287 BUG_ON(sky2
->rx_nfrags
> ARRAY_SIZE(re
->frag_addr
));
1289 /* Compute residue after pages */
1290 size
-= sky2
->rx_nfrags
<< PAGE_SHIFT
;
1292 /* Optimize to handle small packets and headers */
1293 if (size
< copybreak
)
1295 if (size
< ETH_HLEN
)
1298 sky2
->rx_data_size
= size
;
1301 for (i
= 0; i
< sky2
->rx_pending
; i
++) {
1302 re
= sky2
->rx_ring
+ i
;
1304 re
->skb
= sky2_rx_alloc(sky2
);
1308 sky2_rx_map_skb(hw
->pdev
, re
, sky2
->rx_data_size
);
1309 sky2_rx_submit(sky2
, re
);
1313 * The receiver hangs if it receives frames larger than the
1314 * packet buffer. As a workaround, truncate oversize frames, but
1315 * the register is limited to 9 bits, so if you do frames > 2052
1316 * you better get the MTU right!
1319 sky2_write32(hw
, SK_REG(sky2
->port
, RX_GMF_CTRL_T
), RX_TRUNC_OFF
);
1321 sky2_write16(hw
, SK_REG(sky2
->port
, RX_GMF_TR_THR
), thresh
);
1322 sky2_write32(hw
, SK_REG(sky2
->port
, RX_GMF_CTRL_T
), RX_TRUNC_ON
);
1325 /* Tell chip about available buffers */
1326 sky2_rx_update(sky2
, rxq
);
1329 sky2_rx_clean(sky2
);
1333 /* Bring up network interface. */
1334 static int sky2_up(struct net_device
*dev
)
1336 struct sky2_port
*sky2
= netdev_priv(dev
);
1337 struct sky2_hw
*hw
= sky2
->hw
;
1338 unsigned port
= sky2
->port
;
1340 int cap
, err
= -ENOMEM
;
1341 struct net_device
*otherdev
= hw
->dev
[sky2
->port
^1];
1344 * On dual port PCI-X card, there is an problem where status
1345 * can be received out of order due to split transactions
1347 if (otherdev
&& netif_running(otherdev
) &&
1348 (cap
= pci_find_capability(hw
->pdev
, PCI_CAP_ID_PCIX
))) {
1351 cmd
= sky2_pci_read16(hw
, cap
+ PCI_X_CMD
);
1352 cmd
&= ~PCI_X_CMD_MAX_SPLIT
;
1353 sky2_pci_write16(hw
, cap
+ PCI_X_CMD
, cmd
);
1357 if (netif_msg_ifup(sky2
))
1358 printk(KERN_INFO PFX
"%s: enabling interface\n", dev
->name
);
1360 netif_carrier_off(dev
);
1362 /* must be power of 2 */
1363 sky2
->tx_le
= pci_alloc_consistent(hw
->pdev
,
1365 sizeof(struct sky2_tx_le
),
1370 sky2
->tx_ring
= kcalloc(TX_RING_SIZE
, sizeof(struct tx_ring_info
),
1377 sky2
->rx_le
= pci_alloc_consistent(hw
->pdev
, RX_LE_BYTES
,
1381 memset(sky2
->rx_le
, 0, RX_LE_BYTES
);
1383 sky2
->rx_ring
= kcalloc(sky2
->rx_pending
, sizeof(struct rx_ring_info
),
1388 sky2_phy_power(hw
, port
, 1);
1390 sky2_mac_init(hw
, port
);
1392 /* Register is number of 4K blocks on internal RAM buffer. */
1393 ramsize
= sky2_read8(hw
, B2_E_0
) * 4;
1397 hw
->flags
|= SKY2_HW_RAM_BUFFER
;
1398 pr_debug(PFX
"%s: ram buffer %dK\n", dev
->name
, ramsize
);
1400 rxspace
= ramsize
/ 2;
1402 rxspace
= 8 + (2*(ramsize
- 16))/3;
1404 sky2_ramset(hw
, rxqaddr
[port
], 0, rxspace
);
1405 sky2_ramset(hw
, txqaddr
[port
], rxspace
, ramsize
- rxspace
);
1407 /* Make sure SyncQ is disabled */
1408 sky2_write8(hw
, RB_ADDR(port
== 0 ? Q_XS1
: Q_XS2
, RB_CTRL
),
1412 sky2_qset(hw
, txqaddr
[port
]);
1414 /* This is copied from sk98lin 10.0.5.3; no one tells me about erratta's */
1415 if (hw
->chip_id
== CHIP_ID_YUKON_EX
&& hw
->chip_rev
== CHIP_REV_YU_EX_B0
)
1416 sky2_write32(hw
, Q_ADDR(txqaddr
[port
], Q_TEST
), F_TX_CHK_AUTO_OFF
);
1418 /* Set almost empty threshold */
1419 if (hw
->chip_id
== CHIP_ID_YUKON_EC_U
1420 && hw
->chip_rev
== CHIP_REV_YU_EC_U_A0
)
1421 sky2_write16(hw
, Q_ADDR(txqaddr
[port
], Q_AL
), ECU_TXFF_LEV
);
1423 sky2_prefetch_init(hw
, txqaddr
[port
], sky2
->tx_le_map
,
1426 #ifdef SKY2_VLAN_TAG_USED
1427 sky2_set_vlan_mode(hw
, port
, sky2
->vlgrp
!= NULL
);
1430 err
= sky2_rx_start(sky2
);
1434 /* Enable interrupts from phy/mac for port */
1435 imask
= sky2_read32(hw
, B0_IMSK
);
1436 imask
|= portirq_msk
[port
];
1437 sky2_write32(hw
, B0_IMSK
, imask
);
1439 sky2_set_multicast(dev
);
1444 pci_free_consistent(hw
->pdev
, RX_LE_BYTES
,
1445 sky2
->rx_le
, sky2
->rx_le_map
);
1449 pci_free_consistent(hw
->pdev
,
1450 TX_RING_SIZE
* sizeof(struct sky2_tx_le
),
1451 sky2
->tx_le
, sky2
->tx_le_map
);
1454 kfree(sky2
->tx_ring
);
1455 kfree(sky2
->rx_ring
);
1457 sky2
->tx_ring
= NULL
;
1458 sky2
->rx_ring
= NULL
;
1462 /* Modular subtraction in ring */
1463 static inline int tx_dist(unsigned tail
, unsigned head
)
1465 return (head
- tail
) & (TX_RING_SIZE
- 1);
1468 /* Number of list elements available for next tx */
1469 static inline int tx_avail(const struct sky2_port
*sky2
)
1471 return sky2
->tx_pending
- tx_dist(sky2
->tx_cons
, sky2
->tx_prod
);
1474 /* Estimate of number of transmit list elements required */
1475 static unsigned tx_le_req(const struct sk_buff
*skb
)
1479 count
= sizeof(dma_addr_t
) / sizeof(u32
);
1480 count
+= skb_shinfo(skb
)->nr_frags
* count
;
1482 if (skb_is_gso(skb
))
1485 if (skb
->ip_summed
== CHECKSUM_PARTIAL
)
1492 * Put one packet in ring for transmit.
1493 * A single packet can generate multiple list elements, and
1494 * the number of ring elements will probably be less than the number
1495 * of list elements used.
1497 static int sky2_xmit_frame(struct sk_buff
*skb
, struct net_device
*dev
)
1499 struct sky2_port
*sky2
= netdev_priv(dev
);
1500 struct sky2_hw
*hw
= sky2
->hw
;
1501 struct sky2_tx_le
*le
= NULL
;
1502 struct tx_ring_info
*re
;
1508 if (unlikely(tx_avail(sky2
) < tx_le_req(skb
)))
1509 return NETDEV_TX_BUSY
;
1511 if (unlikely(netif_msg_tx_queued(sky2
)))
1512 printk(KERN_DEBUG
"%s: tx queued, slot %u, len %d\n",
1513 dev
->name
, sky2
->tx_prod
, skb
->len
);
1515 len
= skb_headlen(skb
);
1516 mapping
= pci_map_single(hw
->pdev
, skb
->data
, len
, PCI_DMA_TODEVICE
);
1518 /* Send high bits if needed */
1519 if (sizeof(dma_addr_t
) > sizeof(u32
)) {
1520 le
= get_tx_le(sky2
);
1521 le
->addr
= cpu_to_le32(upper_32_bits(mapping
));
1522 le
->opcode
= OP_ADDR64
| HW_OWNER
;
1525 /* Check for TCP Segmentation Offload */
1526 mss
= skb_shinfo(skb
)->gso_size
;
1529 if (!(hw
->flags
& SKY2_HW_NEW_LE
))
1530 mss
+= ETH_HLEN
+ ip_hdrlen(skb
) + tcp_hdrlen(skb
);
1532 if (mss
!= sky2
->tx_last_mss
) {
1533 le
= get_tx_le(sky2
);
1534 le
->addr
= cpu_to_le32(mss
);
1536 if (hw
->flags
& SKY2_HW_NEW_LE
)
1537 le
->opcode
= OP_MSS
| HW_OWNER
;
1539 le
->opcode
= OP_LRGLEN
| HW_OWNER
;
1540 sky2
->tx_last_mss
= mss
;
1545 #ifdef SKY2_VLAN_TAG_USED
1546 /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */
1547 if (sky2
->vlgrp
&& vlan_tx_tag_present(skb
)) {
1549 le
= get_tx_le(sky2
);
1551 le
->opcode
= OP_VLAN
|HW_OWNER
;
1553 le
->opcode
|= OP_VLAN
;
1554 le
->length
= cpu_to_be16(vlan_tx_tag_get(skb
));
1559 /* Handle TCP checksum offload */
1560 if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
1561 /* On Yukon EX (some versions) encoding change. */
1562 if (hw
->flags
& SKY2_HW_AUTO_TX_SUM
)
1563 ctrl
|= CALSUM
; /* auto checksum */
1565 const unsigned offset
= skb_transport_offset(skb
);
1568 tcpsum
= offset
<< 16; /* sum start */
1569 tcpsum
|= offset
+ skb
->csum_offset
; /* sum write */
1571 ctrl
|= CALSUM
| WR_SUM
| INIT_SUM
| LOCK_SUM
;
1572 if (ip_hdr(skb
)->protocol
== IPPROTO_UDP
)
1575 if (tcpsum
!= sky2
->tx_tcpsum
) {
1576 sky2
->tx_tcpsum
= tcpsum
;
1578 le
= get_tx_le(sky2
);
1579 le
->addr
= cpu_to_le32(tcpsum
);
1580 le
->length
= 0; /* initial checksum value */
1581 le
->ctrl
= 1; /* one packet */
1582 le
->opcode
= OP_TCPLISW
| HW_OWNER
;
1587 le
= get_tx_le(sky2
);
1588 le
->addr
= cpu_to_le32((u32
) mapping
);
1589 le
->length
= cpu_to_le16(len
);
1591 le
->opcode
= mss
? (OP_LARGESEND
| HW_OWNER
) : (OP_PACKET
| HW_OWNER
);
1593 re
= tx_le_re(sky2
, le
);
1595 pci_unmap_addr_set(re
, mapaddr
, mapping
);
1596 pci_unmap_len_set(re
, maplen
, len
);
1598 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
1599 const skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[i
];
1601 mapping
= pci_map_page(hw
->pdev
, frag
->page
, frag
->page_offset
,
1602 frag
->size
, PCI_DMA_TODEVICE
);
1604 if (sizeof(dma_addr_t
) > sizeof(u32
)) {
1605 le
= get_tx_le(sky2
);
1606 le
->addr
= cpu_to_le32(upper_32_bits(mapping
));
1608 le
->opcode
= OP_ADDR64
| HW_OWNER
;
1611 le
= get_tx_le(sky2
);
1612 le
->addr
= cpu_to_le32((u32
) mapping
);
1613 le
->length
= cpu_to_le16(frag
->size
);
1615 le
->opcode
= OP_BUFFER
| HW_OWNER
;
1617 re
= tx_le_re(sky2
, le
);
1619 pci_unmap_addr_set(re
, mapaddr
, mapping
);
1620 pci_unmap_len_set(re
, maplen
, frag
->size
);
1625 if (tx_avail(sky2
) <= MAX_SKB_TX_LE
)
1626 netif_stop_queue(dev
);
1628 sky2_put_idx(hw
, txqaddr
[sky2
->port
], sky2
->tx_prod
);
1630 dev
->trans_start
= jiffies
;
1631 return NETDEV_TX_OK
;
1635 * Free ring elements from starting at tx_cons until "done"
1637 * NB: the hardware will tell us about partial completion of multi-part
1638 * buffers so make sure not to free skb to early.
1640 static void sky2_tx_complete(struct sky2_port
*sky2
, u16 done
)
1642 struct net_device
*dev
= sky2
->netdev
;
1643 struct pci_dev
*pdev
= sky2
->hw
->pdev
;
1646 BUG_ON(done
>= TX_RING_SIZE
);
1648 for (idx
= sky2
->tx_cons
; idx
!= done
;
1649 idx
= RING_NEXT(idx
, TX_RING_SIZE
)) {
1650 struct sky2_tx_le
*le
= sky2
->tx_le
+ idx
;
1651 struct tx_ring_info
*re
= sky2
->tx_ring
+ idx
;
1653 switch(le
->opcode
& ~HW_OWNER
) {
1656 pci_unmap_single(pdev
,
1657 pci_unmap_addr(re
, mapaddr
),
1658 pci_unmap_len(re
, maplen
),
1662 pci_unmap_page(pdev
, pci_unmap_addr(re
, mapaddr
),
1663 pci_unmap_len(re
, maplen
),
1668 if (le
->ctrl
& EOP
) {
1669 if (unlikely(netif_msg_tx_done(sky2
)))
1670 printk(KERN_DEBUG
"%s: tx done %u\n",
1673 dev
->stats
.tx_packets
++;
1674 dev
->stats
.tx_bytes
+= re
->skb
->len
;
1676 dev_kfree_skb_any(re
->skb
);
1677 sky2
->tx_next
= RING_NEXT(idx
, TX_RING_SIZE
);
1681 sky2
->tx_cons
= idx
;
1684 if (tx_avail(sky2
) > MAX_SKB_TX_LE
+ 4)
1685 netif_wake_queue(dev
);
1688 /* Cleanup all untransmitted buffers, assume transmitter not running */
1689 static void sky2_tx_clean(struct net_device
*dev
)
1691 struct sky2_port
*sky2
= netdev_priv(dev
);
1693 netif_tx_lock_bh(dev
);
1694 sky2_tx_complete(sky2
, sky2
->tx_prod
);
1695 netif_tx_unlock_bh(dev
);
1698 /* Network shutdown */
1699 static int sky2_down(struct net_device
*dev
)
1701 struct sky2_port
*sky2
= netdev_priv(dev
);
1702 struct sky2_hw
*hw
= sky2
->hw
;
1703 unsigned port
= sky2
->port
;
1707 /* Never really got started! */
1711 if (netif_msg_ifdown(sky2
))
1712 printk(KERN_INFO PFX
"%s: disabling interface\n", dev
->name
);
1714 /* Stop more packets from being queued */
1715 netif_stop_queue(dev
);
1717 /* Disable port IRQ */
1718 imask
= sky2_read32(hw
, B0_IMSK
);
1719 imask
&= ~portirq_msk
[port
];
1720 sky2_write32(hw
, B0_IMSK
, imask
);
1722 synchronize_irq(hw
->pdev
->irq
);
1724 sky2_gmac_reset(hw
, port
);
1726 /* Stop transmitter */
1727 sky2_write32(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
), BMU_STOP
);
1728 sky2_read32(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
));
1730 sky2_write32(hw
, RB_ADDR(txqaddr
[port
], RB_CTRL
),
1731 RB_RST_SET
| RB_DIS_OP_MD
);
1733 ctrl
= gma_read16(hw
, port
, GM_GP_CTRL
);
1734 ctrl
&= ~(GM_GPCR_TX_ENA
| GM_GPCR_RX_ENA
);
1735 gma_write16(hw
, port
, GM_GP_CTRL
, ctrl
);
1737 /* Make sure no packets are pending */
1738 napi_synchronize(&hw
->napi
);
1740 sky2_write8(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_SET
);
1742 /* Workaround shared GMAC reset */
1743 if (!(hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
== 0
1744 && port
== 0 && hw
->dev
[1] && netif_running(hw
->dev
[1])))
1745 sky2_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_RST_SET
);
1747 /* Disable Force Sync bit and Enable Alloc bit */
1748 sky2_write8(hw
, SK_REG(port
, TXA_CTRL
),
1749 TXA_DIS_FSYNC
| TXA_DIS_ALLOC
| TXA_STOP_RC
);
1751 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
1752 sky2_write32(hw
, SK_REG(port
, TXA_ITI_INI
), 0L);
1753 sky2_write32(hw
, SK_REG(port
, TXA_LIM_INI
), 0L);
1755 /* Reset the PCI FIFO of the async Tx queue */
1756 sky2_write32(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
),
1757 BMU_RST_SET
| BMU_FIFO_RST
);
1759 /* Reset the Tx prefetch units */
1760 sky2_write32(hw
, Y2_QADDR(txqaddr
[port
], PREF_UNIT_CTRL
),
1763 sky2_write32(hw
, RB_ADDR(txqaddr
[port
], RB_CTRL
), RB_RST_SET
);
1767 sky2_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_RST_SET
);
1768 sky2_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_RST_SET
);
1770 sky2_phy_power(hw
, port
, 0);
1772 netif_carrier_off(dev
);
1774 /* turn off LED's */
1775 sky2_write16(hw
, B0_Y2LED
, LED_STAT_OFF
);
1778 sky2_rx_clean(sky2
);
1780 pci_free_consistent(hw
->pdev
, RX_LE_BYTES
,
1781 sky2
->rx_le
, sky2
->rx_le_map
);
1782 kfree(sky2
->rx_ring
);
1784 pci_free_consistent(hw
->pdev
,
1785 TX_RING_SIZE
* sizeof(struct sky2_tx_le
),
1786 sky2
->tx_le
, sky2
->tx_le_map
);
1787 kfree(sky2
->tx_ring
);
1792 sky2
->rx_ring
= NULL
;
1793 sky2
->tx_ring
= NULL
;
1798 static u16
sky2_phy_speed(const struct sky2_hw
*hw
, u16 aux
)
1800 if (hw
->flags
& SKY2_HW_FIBRE_PHY
)
1803 if (!(hw
->flags
& SKY2_HW_GIGABIT
)) {
1804 if (aux
& PHY_M_PS_SPEED_100
)
1810 switch (aux
& PHY_M_PS_SPEED_MSK
) {
1811 case PHY_M_PS_SPEED_1000
:
1813 case PHY_M_PS_SPEED_100
:
1820 static void sky2_link_up(struct sky2_port
*sky2
)
1822 struct sky2_hw
*hw
= sky2
->hw
;
1823 unsigned port
= sky2
->port
;
1825 static const char *fc_name
[] = {
1833 reg
= gma_read16(hw
, port
, GM_GP_CTRL
);
1834 reg
|= GM_GPCR_RX_ENA
| GM_GPCR_TX_ENA
;
1835 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
1837 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_DEF_MSK
);
1839 netif_carrier_on(sky2
->netdev
);
1841 mod_timer(&hw
->watchdog_timer
, jiffies
+ 1);
1843 /* Turn on link LED */
1844 sky2_write8(hw
, SK_REG(port
, LNK_LED_REG
),
1845 LINKLED_ON
| LINKLED_BLINK_OFF
| LINKLED_LINKSYNC_OFF
);
1847 if (netif_msg_link(sky2
))
1848 printk(KERN_INFO PFX
1849 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
1850 sky2
->netdev
->name
, sky2
->speed
,
1851 sky2
->duplex
== DUPLEX_FULL
? "full" : "half",
1852 fc_name
[sky2
->flow_status
]);
1855 static void sky2_link_down(struct sky2_port
*sky2
)
1857 struct sky2_hw
*hw
= sky2
->hw
;
1858 unsigned port
= sky2
->port
;
1861 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, 0);
1863 reg
= gma_read16(hw
, port
, GM_GP_CTRL
);
1864 reg
&= ~(GM_GPCR_RX_ENA
| GM_GPCR_TX_ENA
);
1865 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
1867 netif_carrier_off(sky2
->netdev
);
1869 /* Turn on link LED */
1870 sky2_write8(hw
, SK_REG(port
, LNK_LED_REG
), LINKLED_OFF
);
1872 if (netif_msg_link(sky2
))
1873 printk(KERN_INFO PFX
"%s: Link is down.\n", sky2
->netdev
->name
);
1875 sky2_phy_init(hw
, port
);
1878 static enum flow_control
sky2_flow(int rx
, int tx
)
1881 return tx
? FC_BOTH
: FC_RX
;
1883 return tx
? FC_TX
: FC_NONE
;
1886 static int sky2_autoneg_done(struct sky2_port
*sky2
, u16 aux
)
1888 struct sky2_hw
*hw
= sky2
->hw
;
1889 unsigned port
= sky2
->port
;
1892 advert
= gm_phy_read(hw
, port
, PHY_MARV_AUNE_ADV
);
1893 lpa
= gm_phy_read(hw
, port
, PHY_MARV_AUNE_LP
);
1894 if (lpa
& PHY_M_AN_RF
) {
1895 printk(KERN_ERR PFX
"%s: remote fault", sky2
->netdev
->name
);
1899 if (!(aux
& PHY_M_PS_SPDUP_RES
)) {
1900 printk(KERN_ERR PFX
"%s: speed/duplex mismatch",
1901 sky2
->netdev
->name
);
1905 sky2
->speed
= sky2_phy_speed(hw
, aux
);
1906 sky2
->duplex
= (aux
& PHY_M_PS_FULL_DUP
) ? DUPLEX_FULL
: DUPLEX_HALF
;
1908 /* Since the pause result bits seem to in different positions on
1909 * different chips. look at registers.
1911 if (hw
->flags
& SKY2_HW_FIBRE_PHY
) {
1912 /* Shift for bits in fiber PHY */
1913 advert
&= ~(ADVERTISE_PAUSE_CAP
|ADVERTISE_PAUSE_ASYM
);
1914 lpa
&= ~(LPA_PAUSE_CAP
|LPA_PAUSE_ASYM
);
1916 if (advert
& ADVERTISE_1000XPAUSE
)
1917 advert
|= ADVERTISE_PAUSE_CAP
;
1918 if (advert
& ADVERTISE_1000XPSE_ASYM
)
1919 advert
|= ADVERTISE_PAUSE_ASYM
;
1920 if (lpa
& LPA_1000XPAUSE
)
1921 lpa
|= LPA_PAUSE_CAP
;
1922 if (lpa
& LPA_1000XPAUSE_ASYM
)
1923 lpa
|= LPA_PAUSE_ASYM
;
1926 sky2
->flow_status
= FC_NONE
;
1927 if (advert
& ADVERTISE_PAUSE_CAP
) {
1928 if (lpa
& LPA_PAUSE_CAP
)
1929 sky2
->flow_status
= FC_BOTH
;
1930 else if (advert
& ADVERTISE_PAUSE_ASYM
)
1931 sky2
->flow_status
= FC_RX
;
1932 } else if (advert
& ADVERTISE_PAUSE_ASYM
) {
1933 if ((lpa
& LPA_PAUSE_CAP
) && (lpa
& LPA_PAUSE_ASYM
))
1934 sky2
->flow_status
= FC_TX
;
1937 if (sky2
->duplex
== DUPLEX_HALF
&& sky2
->speed
< SPEED_1000
1938 && !(hw
->chip_id
== CHIP_ID_YUKON_EC_U
|| hw
->chip_id
== CHIP_ID_YUKON_EX
))
1939 sky2
->flow_status
= FC_NONE
;
1941 if (sky2
->flow_status
& FC_TX
)
1942 sky2_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_ON
);
1944 sky2_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_OFF
);
1949 /* Interrupt from PHY */
1950 static void sky2_phy_intr(struct sky2_hw
*hw
, unsigned port
)
1952 struct net_device
*dev
= hw
->dev
[port
];
1953 struct sky2_port
*sky2
= netdev_priv(dev
);
1954 u16 istatus
, phystat
;
1956 if (!netif_running(dev
))
1959 spin_lock(&sky2
->phy_lock
);
1960 istatus
= gm_phy_read(hw
, port
, PHY_MARV_INT_STAT
);
1961 phystat
= gm_phy_read(hw
, port
, PHY_MARV_PHY_STAT
);
1963 if (netif_msg_intr(sky2
))
1964 printk(KERN_INFO PFX
"%s: phy interrupt status 0x%x 0x%x\n",
1965 sky2
->netdev
->name
, istatus
, phystat
);
1967 if (sky2
->autoneg
== AUTONEG_ENABLE
&& (istatus
& PHY_M_IS_AN_COMPL
)) {
1968 if (sky2_autoneg_done(sky2
, phystat
) == 0)
1973 if (istatus
& PHY_M_IS_LSP_CHANGE
)
1974 sky2
->speed
= sky2_phy_speed(hw
, phystat
);
1976 if (istatus
& PHY_M_IS_DUP_CHANGE
)
1978 (phystat
& PHY_M_PS_FULL_DUP
) ? DUPLEX_FULL
: DUPLEX_HALF
;
1980 if (istatus
& PHY_M_IS_LST_CHANGE
) {
1981 if (phystat
& PHY_M_PS_LINK_UP
)
1984 sky2_link_down(sky2
);
1987 spin_unlock(&sky2
->phy_lock
);
1990 /* Transmit timeout is only called if we are running, carrier is up
1991 * and tx queue is full (stopped).
1993 static void sky2_tx_timeout(struct net_device
*dev
)
1995 struct sky2_port
*sky2
= netdev_priv(dev
);
1996 struct sky2_hw
*hw
= sky2
->hw
;
1998 if (netif_msg_timer(sky2
))
1999 printk(KERN_ERR PFX
"%s: tx timeout\n", dev
->name
);
2001 printk(KERN_DEBUG PFX
"%s: transmit ring %u .. %u report=%u done=%u\n",
2002 dev
->name
, sky2
->tx_cons
, sky2
->tx_prod
,
2003 sky2_read16(hw
, sky2
->port
== 0 ? STAT_TXA1_RIDX
: STAT_TXA2_RIDX
),
2004 sky2_read16(hw
, Q_ADDR(txqaddr
[sky2
->port
], Q_DONE
)));
2006 /* can't restart safely under softirq */
2007 schedule_work(&hw
->restart_work
);
2010 static int sky2_change_mtu(struct net_device
*dev
, int new_mtu
)
2012 struct sky2_port
*sky2
= netdev_priv(dev
);
2013 struct sky2_hw
*hw
= sky2
->hw
;
2014 unsigned port
= sky2
->port
;
2019 if (new_mtu
< ETH_ZLEN
|| new_mtu
> ETH_JUMBO_MTU
)
2022 if (new_mtu
> ETH_DATA_LEN
&&
2023 (hw
->chip_id
== CHIP_ID_YUKON_FE
||
2024 hw
->chip_id
== CHIP_ID_YUKON_FE_P
))
2027 if (!netif_running(dev
)) {
2032 imask
= sky2_read32(hw
, B0_IMSK
);
2033 sky2_write32(hw
, B0_IMSK
, 0);
2035 dev
->trans_start
= jiffies
; /* prevent tx timeout */
2036 netif_stop_queue(dev
);
2037 napi_disable(&hw
->napi
);
2039 synchronize_irq(hw
->pdev
->irq
);
2041 if (!(hw
->flags
& SKY2_HW_RAM_BUFFER
))
2042 sky2_set_tx_stfwd(hw
, port
);
2044 ctl
= gma_read16(hw
, port
, GM_GP_CTRL
);
2045 gma_write16(hw
, port
, GM_GP_CTRL
, ctl
& ~GM_GPCR_RX_ENA
);
2047 sky2_rx_clean(sky2
);
2051 mode
= DATA_BLIND_VAL(DATA_BLIND_DEF
) |
2052 GM_SMOD_VLAN_ENA
| IPG_DATA_VAL(IPG_DATA_DEF
);
2054 if (dev
->mtu
> ETH_DATA_LEN
)
2055 mode
|= GM_SMOD_JUMBO_ENA
;
2057 gma_write16(hw
, port
, GM_SERIAL_MODE
, mode
);
2059 sky2_write8(hw
, RB_ADDR(rxqaddr
[port
], RB_CTRL
), RB_ENA_OP_MD
);
2061 err
= sky2_rx_start(sky2
);
2062 sky2_write32(hw
, B0_IMSK
, imask
);
2064 sky2_read32(hw
, B0_Y2_SP_LISR
);
2065 napi_enable(&hw
->napi
);
2070 gma_write16(hw
, port
, GM_GP_CTRL
, ctl
);
2072 netif_wake_queue(dev
);
2078 /* For small just reuse existing skb for next receive */
2079 static struct sk_buff
*receive_copy(struct sky2_port
*sky2
,
2080 const struct rx_ring_info
*re
,
2083 struct sk_buff
*skb
;
2085 skb
= netdev_alloc_skb(sky2
->netdev
, length
+ 2);
2087 skb_reserve(skb
, 2);
2088 pci_dma_sync_single_for_cpu(sky2
->hw
->pdev
, re
->data_addr
,
2089 length
, PCI_DMA_FROMDEVICE
);
2090 skb_copy_from_linear_data(re
->skb
, skb
->data
, length
);
2091 skb
->ip_summed
= re
->skb
->ip_summed
;
2092 skb
->csum
= re
->skb
->csum
;
2093 pci_dma_sync_single_for_device(sky2
->hw
->pdev
, re
->data_addr
,
2094 length
, PCI_DMA_FROMDEVICE
);
2095 re
->skb
->ip_summed
= CHECKSUM_NONE
;
2096 skb_put(skb
, length
);
2101 /* Adjust length of skb with fragments to match received data */
2102 static void skb_put_frags(struct sk_buff
*skb
, unsigned int hdr_space
,
2103 unsigned int length
)
2108 /* put header into skb */
2109 size
= min(length
, hdr_space
);
2114 num_frags
= skb_shinfo(skb
)->nr_frags
;
2115 for (i
= 0; i
< num_frags
; i
++) {
2116 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[i
];
2119 /* don't need this page */
2120 __free_page(frag
->page
);
2121 --skb_shinfo(skb
)->nr_frags
;
2123 size
= min(length
, (unsigned) PAGE_SIZE
);
2126 skb
->data_len
+= size
;
2127 skb
->truesize
+= size
;
2134 /* Normal packet - take skb from ring element and put in a new one */
2135 static struct sk_buff
*receive_new(struct sky2_port
*sky2
,
2136 struct rx_ring_info
*re
,
2137 unsigned int length
)
2139 struct sk_buff
*skb
, *nskb
;
2140 unsigned hdr_space
= sky2
->rx_data_size
;
2142 /* Don't be tricky about reusing pages (yet) */
2143 nskb
= sky2_rx_alloc(sky2
);
2144 if (unlikely(!nskb
))
2148 sky2_rx_unmap_skb(sky2
->hw
->pdev
, re
);
2150 prefetch(skb
->data
);
2152 sky2_rx_map_skb(sky2
->hw
->pdev
, re
, hdr_space
);
2154 if (skb_shinfo(skb
)->nr_frags
)
2155 skb_put_frags(skb
, hdr_space
, length
);
2157 skb_put(skb
, length
);
2162 * Receive one packet.
2163 * For larger packets, get new buffer.
2165 static struct sk_buff
*sky2_receive(struct net_device
*dev
,
2166 u16 length
, u32 status
)
2168 struct sky2_port
*sky2
= netdev_priv(dev
);
2169 struct rx_ring_info
*re
= sky2
->rx_ring
+ sky2
->rx_next
;
2170 struct sk_buff
*skb
= NULL
;
2171 u16 count
= (status
& GMR_FS_LEN
) >> 16;
2173 #ifdef SKY2_VLAN_TAG_USED
2174 /* Account for vlan tag */
2175 if (sky2
->vlgrp
&& (status
& GMR_FS_VLAN
))
2179 if (unlikely(netif_msg_rx_status(sky2
)))
2180 printk(KERN_DEBUG PFX
"%s: rx slot %u status 0x%x len %d\n",
2181 dev
->name
, sky2
->rx_next
, status
, length
);
2183 sky2
->rx_next
= (sky2
->rx_next
+ 1) % sky2
->rx_pending
;
2184 prefetch(sky2
->rx_ring
+ sky2
->rx_next
);
2186 /* This chip has hardware problems that generates bogus status.
2187 * So do only marginal checking and expect higher level protocols
2188 * to handle crap frames.
2190 if (sky2
->hw
->chip_id
== CHIP_ID_YUKON_FE_P
&&
2191 sky2
->hw
->chip_rev
== CHIP_REV_YU_FE2_A0
&&
2195 if (status
& GMR_FS_ANY_ERR
)
2198 if (!(status
& GMR_FS_RX_OK
))
2201 /* if length reported by DMA does not match PHY, packet was truncated */
2202 if (length
!= count
)
2206 if (length
< copybreak
)
2207 skb
= receive_copy(sky2
, re
, length
);
2209 skb
= receive_new(sky2
, re
, length
);
2211 sky2_rx_submit(sky2
, re
);
2216 /* Truncation of overlength packets
2217 causes PHY length to not match MAC length */
2218 ++dev
->stats
.rx_length_errors
;
2219 if (netif_msg_rx_err(sky2
) && net_ratelimit())
2220 pr_info(PFX
"%s: rx length error: status %#x length %d\n",
2221 dev
->name
, status
, length
);
2225 ++dev
->stats
.rx_errors
;
2226 if (status
& GMR_FS_RX_FF_OV
) {
2227 dev
->stats
.rx_over_errors
++;
2231 if (netif_msg_rx_err(sky2
) && net_ratelimit())
2232 printk(KERN_INFO PFX
"%s: rx error, status 0x%x length %d\n",
2233 dev
->name
, status
, length
);
2235 if (status
& (GMR_FS_LONG_ERR
| GMR_FS_UN_SIZE
))
2236 dev
->stats
.rx_length_errors
++;
2237 if (status
& GMR_FS_FRAGMENT
)
2238 dev
->stats
.rx_frame_errors
++;
2239 if (status
& GMR_FS_CRC_ERR
)
2240 dev
->stats
.rx_crc_errors
++;
2245 /* Transmit complete */
2246 static inline void sky2_tx_done(struct net_device
*dev
, u16 last
)
2248 struct sky2_port
*sky2
= netdev_priv(dev
);
2250 if (netif_running(dev
)) {
2252 sky2_tx_complete(sky2
, last
);
2253 netif_tx_unlock(dev
);
2257 /* Process status response ring */
2258 static int sky2_status_intr(struct sky2_hw
*hw
, int to_do
, u16 idx
)
2261 unsigned rx
[2] = { 0, 0 };
2265 struct sky2_port
*sky2
;
2266 struct sky2_status_le
*le
= hw
->st_le
+ hw
->st_idx
;
2268 struct net_device
*dev
;
2269 struct sk_buff
*skb
;
2272 u8 opcode
= le
->opcode
;
2274 if (!(opcode
& HW_OWNER
))
2277 hw
->st_idx
= RING_NEXT(hw
->st_idx
, STATUS_RING_SIZE
);
2279 port
= le
->css
& CSS_LINK_BIT
;
2280 dev
= hw
->dev
[port
];
2281 sky2
= netdev_priv(dev
);
2282 length
= le16_to_cpu(le
->length
);
2283 status
= le32_to_cpu(le
->status
);
2286 switch (opcode
& ~HW_OWNER
) {
2289 skb
= sky2_receive(dev
, length
, status
);
2290 if (unlikely(!skb
)) {
2291 dev
->stats
.rx_dropped
++;
2295 /* This chip reports checksum status differently */
2296 if (hw
->flags
& SKY2_HW_NEW_LE
) {
2297 if (sky2
->rx_csum
&&
2298 (le
->css
& (CSS_ISIPV4
| CSS_ISIPV6
)) &&
2299 (le
->css
& CSS_TCPUDPCSOK
))
2300 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
2302 skb
->ip_summed
= CHECKSUM_NONE
;
2305 skb
->protocol
= eth_type_trans(skb
, dev
);
2306 dev
->stats
.rx_packets
++;
2307 dev
->stats
.rx_bytes
+= skb
->len
;
2308 dev
->last_rx
= jiffies
;
2310 #ifdef SKY2_VLAN_TAG_USED
2311 if (sky2
->vlgrp
&& (status
& GMR_FS_VLAN
)) {
2312 vlan_hwaccel_receive_skb(skb
,
2314 be16_to_cpu(sky2
->rx_tag
));
2317 netif_receive_skb(skb
);
2319 /* Stop after net poll weight */
2320 if (++work_done
>= to_do
)
2324 #ifdef SKY2_VLAN_TAG_USED
2326 sky2
->rx_tag
= length
;
2330 sky2
->rx_tag
= length
;
2337 /* If this happens then driver assuming wrong format */
2338 if (unlikely(hw
->flags
& SKY2_HW_NEW_LE
)) {
2339 if (net_ratelimit())
2340 printk(KERN_NOTICE
"%s: unexpected"
2341 " checksum status\n",
2346 /* Both checksum counters are programmed to start at
2347 * the same offset, so unless there is a problem they
2348 * should match. This failure is an early indication that
2349 * hardware receive checksumming won't work.
2351 if (likely(status
>> 16 == (status
& 0xffff))) {
2352 skb
= sky2
->rx_ring
[sky2
->rx_next
].skb
;
2353 skb
->ip_summed
= CHECKSUM_COMPLETE
;
2354 skb
->csum
= status
& 0xffff;
2356 printk(KERN_NOTICE PFX
"%s: hardware receive "
2357 "checksum problem (status = %#x)\n",
2360 sky2_write32(sky2
->hw
,
2361 Q_ADDR(rxqaddr
[port
], Q_CSR
),
2367 /* TX index reports status for both ports */
2368 BUILD_BUG_ON(TX_RING_SIZE
> 0x1000);
2369 sky2_tx_done(hw
->dev
[0], status
& 0xfff);
2371 sky2_tx_done(hw
->dev
[1],
2372 ((status
>> 24) & 0xff)
2373 | (u16
)(length
& 0xf) << 8);
2377 if (net_ratelimit())
2378 printk(KERN_WARNING PFX
2379 "unknown status opcode 0x%x\n", opcode
);
2381 } while (hw
->st_idx
!= idx
);
2383 /* Fully processed status ring so clear irq */
2384 sky2_write32(hw
, STAT_CTRL
, SC_STAT_CLR_IRQ
);
2388 sky2_rx_update(netdev_priv(hw
->dev
[0]), Q_R1
);
2391 sky2_rx_update(netdev_priv(hw
->dev
[1]), Q_R2
);
2396 static void sky2_hw_error(struct sky2_hw
*hw
, unsigned port
, u32 status
)
2398 struct net_device
*dev
= hw
->dev
[port
];
2400 if (net_ratelimit())
2401 printk(KERN_INFO PFX
"%s: hw error interrupt status 0x%x\n",
2404 if (status
& Y2_IS_PAR_RD1
) {
2405 if (net_ratelimit())
2406 printk(KERN_ERR PFX
"%s: ram data read parity error\n",
2409 sky2_write16(hw
, RAM_BUFFER(port
, B3_RI_CTRL
), RI_CLR_RD_PERR
);
2412 if (status
& Y2_IS_PAR_WR1
) {
2413 if (net_ratelimit())
2414 printk(KERN_ERR PFX
"%s: ram data write parity error\n",
2417 sky2_write16(hw
, RAM_BUFFER(port
, B3_RI_CTRL
), RI_CLR_WR_PERR
);
2420 if (status
& Y2_IS_PAR_MAC1
) {
2421 if (net_ratelimit())
2422 printk(KERN_ERR PFX
"%s: MAC parity error\n", dev
->name
);
2423 sky2_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_CLI_TX_PE
);
2426 if (status
& Y2_IS_PAR_RX1
) {
2427 if (net_ratelimit())
2428 printk(KERN_ERR PFX
"%s: RX parity error\n", dev
->name
);
2429 sky2_write32(hw
, Q_ADDR(rxqaddr
[port
], Q_CSR
), BMU_CLR_IRQ_PAR
);
2432 if (status
& Y2_IS_TCP_TXA1
) {
2433 if (net_ratelimit())
2434 printk(KERN_ERR PFX
"%s: TCP segmentation error\n",
2436 sky2_write32(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
), BMU_CLR_IRQ_TCP
);
2440 static void sky2_hw_intr(struct sky2_hw
*hw
)
2442 struct pci_dev
*pdev
= hw
->pdev
;
2443 u32 status
= sky2_read32(hw
, B0_HWE_ISRC
);
2444 u32 hwmsk
= sky2_read32(hw
, B0_HWE_IMSK
);
2448 if (status
& Y2_IS_TIST_OV
)
2449 sky2_write8(hw
, GMAC_TI_ST_CTRL
, GMT_ST_CLR_IRQ
);
2451 if (status
& (Y2_IS_MST_ERR
| Y2_IS_IRQ_STAT
)) {
2454 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
2455 pci_err
= sky2_pci_read16(hw
, PCI_STATUS
);
2456 if (net_ratelimit())
2457 dev_err(&pdev
->dev
, "PCI hardware error (0x%x)\n",
2460 sky2_pci_write16(hw
, PCI_STATUS
,
2461 pci_err
| PCI_STATUS_ERROR_BITS
);
2462 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
2465 if (status
& Y2_IS_PCI_EXP
) {
2466 /* PCI-Express uncorrectable Error occurred */
2469 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
2470 err
= sky2_read32(hw
, Y2_CFG_AER
+ PCI_ERR_UNCOR_STATUS
);
2471 sky2_write32(hw
, Y2_CFG_AER
+ PCI_ERR_UNCOR_STATUS
,
2473 if (net_ratelimit())
2474 dev_err(&pdev
->dev
, "PCI Express error (0x%x)\n", err
);
2476 sky2_read32(hw
, Y2_CFG_AER
+ PCI_ERR_UNCOR_STATUS
);
2477 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
2480 if (status
& Y2_HWE_L1_MASK
)
2481 sky2_hw_error(hw
, 0, status
);
2483 if (status
& Y2_HWE_L1_MASK
)
2484 sky2_hw_error(hw
, 1, status
);
2487 static void sky2_mac_intr(struct sky2_hw
*hw
, unsigned port
)
2489 struct net_device
*dev
= hw
->dev
[port
];
2490 struct sky2_port
*sky2
= netdev_priv(dev
);
2491 u8 status
= sky2_read8(hw
, SK_REG(port
, GMAC_IRQ_SRC
));
2493 if (netif_msg_intr(sky2
))
2494 printk(KERN_INFO PFX
"%s: mac interrupt status 0x%x\n",
2497 if (status
& GM_IS_RX_CO_OV
)
2498 gma_read16(hw
, port
, GM_RX_IRQ_SRC
);
2500 if (status
& GM_IS_TX_CO_OV
)
2501 gma_read16(hw
, port
, GM_TX_IRQ_SRC
);
2503 if (status
& GM_IS_RX_FF_OR
) {
2504 ++dev
->stats
.rx_fifo_errors
;
2505 sky2_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_CLI_RX_FO
);
2508 if (status
& GM_IS_TX_FF_UR
) {
2509 ++dev
->stats
.tx_fifo_errors
;
2510 sky2_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_CLI_TX_FU
);
2514 /* This should never happen it is a bug. */
2515 static void sky2_le_error(struct sky2_hw
*hw
, unsigned port
,
2516 u16 q
, unsigned ring_size
)
2518 struct net_device
*dev
= hw
->dev
[port
];
2519 struct sky2_port
*sky2
= netdev_priv(dev
);
2521 const u64
*le
= (q
== Q_R1
|| q
== Q_R2
)
2522 ? (u64
*) sky2
->rx_le
: (u64
*) sky2
->tx_le
;
2524 idx
= sky2_read16(hw
, Y2_QADDR(q
, PREF_UNIT_GET_IDX
));
2525 printk(KERN_ERR PFX
"%s: descriptor error q=%#x get=%u [%llx] put=%u\n",
2526 dev
->name
, (unsigned) q
, idx
, (unsigned long long) le
[idx
],
2527 (unsigned) sky2_read16(hw
, Y2_QADDR(q
, PREF_UNIT_PUT_IDX
)));
2529 sky2_write32(hw
, Q_ADDR(q
, Q_CSR
), BMU_CLR_IRQ_CHK
);
2532 static int sky2_rx_hung(struct net_device
*dev
)
2534 struct sky2_port
*sky2
= netdev_priv(dev
);
2535 struct sky2_hw
*hw
= sky2
->hw
;
2536 unsigned port
= sky2
->port
;
2537 unsigned rxq
= rxqaddr
[port
];
2538 u32 mac_rp
= sky2_read32(hw
, SK_REG(port
, RX_GMF_RP
));
2539 u8 mac_lev
= sky2_read8(hw
, SK_REG(port
, RX_GMF_RLEV
));
2540 u8 fifo_rp
= sky2_read8(hw
, Q_ADDR(rxq
, Q_RP
));
2541 u8 fifo_lev
= sky2_read8(hw
, Q_ADDR(rxq
, Q_RL
));
2543 /* If idle and MAC or PCI is stuck */
2544 if (sky2
->check
.last
== dev
->last_rx
&&
2545 ((mac_rp
== sky2
->check
.mac_rp
&&
2546 mac_lev
!= 0 && mac_lev
>= sky2
->check
.mac_lev
) ||
2547 /* Check if the PCI RX hang */
2548 (fifo_rp
== sky2
->check
.fifo_rp
&&
2549 fifo_lev
!= 0 && fifo_lev
>= sky2
->check
.fifo_lev
))) {
2550 printk(KERN_DEBUG PFX
"%s: hung mac %d:%d fifo %d (%d:%d)\n",
2551 dev
->name
, mac_lev
, mac_rp
, fifo_lev
, fifo_rp
,
2552 sky2_read8(hw
, Q_ADDR(rxq
, Q_WP
)));
2555 sky2
->check
.last
= dev
->last_rx
;
2556 sky2
->check
.mac_rp
= mac_rp
;
2557 sky2
->check
.mac_lev
= mac_lev
;
2558 sky2
->check
.fifo_rp
= fifo_rp
;
2559 sky2
->check
.fifo_lev
= fifo_lev
;
2564 static void sky2_watchdog(unsigned long arg
)
2566 struct sky2_hw
*hw
= (struct sky2_hw
*) arg
;
2568 /* Check for lost IRQ once a second */
2569 if (sky2_read32(hw
, B0_ISRC
)) {
2570 napi_schedule(&hw
->napi
);
2574 for (i
= 0; i
< hw
->ports
; i
++) {
2575 struct net_device
*dev
= hw
->dev
[i
];
2576 if (!netif_running(dev
))
2580 /* For chips with Rx FIFO, check if stuck */
2581 if ((hw
->flags
& SKY2_HW_RAM_BUFFER
) &&
2582 sky2_rx_hung(dev
)) {
2583 pr_info(PFX
"%s: receiver hang detected\n",
2585 schedule_work(&hw
->restart_work
);
2594 mod_timer(&hw
->watchdog_timer
, round_jiffies(jiffies
+ HZ
));
2597 /* Hardware/software error handling */
2598 static void sky2_err_intr(struct sky2_hw
*hw
, u32 status
)
2600 if (net_ratelimit())
2601 dev_warn(&hw
->pdev
->dev
, "error interrupt status=%#x\n", status
);
2603 if (status
& Y2_IS_HW_ERR
)
2606 if (status
& Y2_IS_IRQ_MAC1
)
2607 sky2_mac_intr(hw
, 0);
2609 if (status
& Y2_IS_IRQ_MAC2
)
2610 sky2_mac_intr(hw
, 1);
2612 if (status
& Y2_IS_CHK_RX1
)
2613 sky2_le_error(hw
, 0, Q_R1
, RX_LE_SIZE
);
2615 if (status
& Y2_IS_CHK_RX2
)
2616 sky2_le_error(hw
, 1, Q_R2
, RX_LE_SIZE
);
2618 if (status
& Y2_IS_CHK_TXA1
)
2619 sky2_le_error(hw
, 0, Q_XA1
, TX_RING_SIZE
);
2621 if (status
& Y2_IS_CHK_TXA2
)
2622 sky2_le_error(hw
, 1, Q_XA2
, TX_RING_SIZE
);
2625 static int sky2_poll(struct napi_struct
*napi
, int work_limit
)
2627 struct sky2_hw
*hw
= container_of(napi
, struct sky2_hw
, napi
);
2628 u32 status
= sky2_read32(hw
, B0_Y2_SP_EISR
);
2632 if (unlikely(status
& Y2_IS_ERROR
))
2633 sky2_err_intr(hw
, status
);
2635 if (status
& Y2_IS_IRQ_PHY1
)
2636 sky2_phy_intr(hw
, 0);
2638 if (status
& Y2_IS_IRQ_PHY2
)
2639 sky2_phy_intr(hw
, 1);
2641 while ((idx
= sky2_read16(hw
, STAT_PUT_IDX
)) != hw
->st_idx
) {
2642 work_done
+= sky2_status_intr(hw
, work_limit
- work_done
, idx
);
2644 if (work_done
>= work_limit
)
2648 /* Bug/Errata workaround?
2649 * Need to kick the TX irq moderation timer.
2651 if (sky2_read8(hw
, STAT_TX_TIMER_CTRL
) == TIM_START
) {
2652 sky2_write8(hw
, STAT_TX_TIMER_CTRL
, TIM_STOP
);
2653 sky2_write8(hw
, STAT_TX_TIMER_CTRL
, TIM_START
);
2655 napi_complete(napi
);
2656 sky2_read32(hw
, B0_Y2_SP_LISR
);
2662 static irqreturn_t
sky2_intr(int irq
, void *dev_id
)
2664 struct sky2_hw
*hw
= dev_id
;
2667 /* Reading this mask interrupts as side effect */
2668 status
= sky2_read32(hw
, B0_Y2_SP_ISRC2
);
2669 if (status
== 0 || status
== ~0)
2672 prefetch(&hw
->st_le
[hw
->st_idx
]);
2674 napi_schedule(&hw
->napi
);
2679 #ifdef CONFIG_NET_POLL_CONTROLLER
2680 static void sky2_netpoll(struct net_device
*dev
)
2682 struct sky2_port
*sky2
= netdev_priv(dev
);
2684 napi_schedule(&sky2
->hw
->napi
);
2688 /* Chip internal frequency for clock calculations */
2689 static u32
sky2_mhz(const struct sky2_hw
*hw
)
2691 switch (hw
->chip_id
) {
2692 case CHIP_ID_YUKON_EC
:
2693 case CHIP_ID_YUKON_EC_U
:
2694 case CHIP_ID_YUKON_EX
:
2695 case CHIP_ID_YUKON_SUPR
:
2698 case CHIP_ID_YUKON_FE
:
2701 case CHIP_ID_YUKON_FE_P
:
2704 case CHIP_ID_YUKON_XL
:
2712 static inline u32
sky2_us2clk(const struct sky2_hw
*hw
, u32 us
)
2714 return sky2_mhz(hw
) * us
;
2717 static inline u32
sky2_clk2us(const struct sky2_hw
*hw
, u32 clk
)
2719 return clk
/ sky2_mhz(hw
);
2723 static int __devinit
sky2_init(struct sky2_hw
*hw
)
2727 /* Enable all clocks and check for bad PCI access */
2728 sky2_pci_write32(hw
, PCI_DEV_REG3
, 0);
2730 sky2_write8(hw
, B0_CTST
, CS_RST_CLR
);
2732 hw
->chip_id
= sky2_read8(hw
, B2_CHIP_ID
);
2733 hw
->chip_rev
= (sky2_read8(hw
, B2_MAC_CFG
) & CFG_CHIP_R_MSK
) >> 4;
2735 switch(hw
->chip_id
) {
2736 case CHIP_ID_YUKON_XL
:
2737 hw
->flags
= SKY2_HW_GIGABIT
| SKY2_HW_NEWER_PHY
;
2740 case CHIP_ID_YUKON_EC_U
:
2741 hw
->flags
= SKY2_HW_GIGABIT
2743 | SKY2_HW_ADV_POWER_CTL
;
2746 case CHIP_ID_YUKON_EX
:
2747 hw
->flags
= SKY2_HW_GIGABIT
2750 | SKY2_HW_ADV_POWER_CTL
;
2752 /* New transmit checksum */
2753 if (hw
->chip_rev
!= CHIP_REV_YU_EX_B0
)
2754 hw
->flags
|= SKY2_HW_AUTO_TX_SUM
;
2757 case CHIP_ID_YUKON_EC
:
2758 /* This rev is really old, and requires untested workarounds */
2759 if (hw
->chip_rev
== CHIP_REV_YU_EC_A1
) {
2760 dev_err(&hw
->pdev
->dev
, "unsupported revision Yukon-EC rev A1\n");
2763 hw
->flags
= SKY2_HW_GIGABIT
;
2766 case CHIP_ID_YUKON_FE
:
2769 case CHIP_ID_YUKON_FE_P
:
2770 hw
->flags
= SKY2_HW_NEWER_PHY
2772 | SKY2_HW_AUTO_TX_SUM
2773 | SKY2_HW_ADV_POWER_CTL
;
2776 case CHIP_ID_YUKON_SUPR
:
2777 hw
->flags
= SKY2_HW_GIGABIT
2780 | SKY2_HW_AUTO_TX_SUM
2781 | SKY2_HW_ADV_POWER_CTL
;
2785 dev_err(&hw
->pdev
->dev
, "unsupported chip type 0x%x\n",
2790 hw
->pmd_type
= sky2_read8(hw
, B2_PMD_TYP
);
2791 if (hw
->pmd_type
== 'L' || hw
->pmd_type
== 'S' || hw
->pmd_type
== 'P')
2792 hw
->flags
|= SKY2_HW_FIBRE_PHY
;
2796 t8
= sky2_read8(hw
, B2_Y2_HW_RES
);
2797 if ((t8
& CFG_DUAL_MAC_MSK
) == CFG_DUAL_MAC_MSK
) {
2798 if (!(sky2_read8(hw
, B2_Y2_CLK_GATE
) & Y2_STATUS_LNK2_INAC
))
2805 static void sky2_reset(struct sky2_hw
*hw
)
2807 struct pci_dev
*pdev
= hw
->pdev
;
2810 u32 hwe_mask
= Y2_HWE_ALL_MASK
;
2813 if (hw
->chip_id
== CHIP_ID_YUKON_EX
) {
2814 status
= sky2_read16(hw
, HCU_CCSR
);
2815 status
&= ~(HCU_CCSR_AHB_RST
| HCU_CCSR_CPU_RST_MODE
|
2816 HCU_CCSR_UC_STATE_MSK
);
2817 sky2_write16(hw
, HCU_CCSR
, status
);
2819 sky2_write8(hw
, B28_Y2_ASF_STAT_CMD
, Y2_ASF_RESET
);
2820 sky2_write16(hw
, B0_CTST
, Y2_ASF_DISABLE
);
2823 sky2_write8(hw
, B0_CTST
, CS_RST_SET
);
2824 sky2_write8(hw
, B0_CTST
, CS_RST_CLR
);
2826 /* allow writes to PCI config */
2827 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
2829 /* clear PCI errors, if any */
2830 status
= sky2_pci_read16(hw
, PCI_STATUS
);
2831 status
|= PCI_STATUS_ERROR_BITS
;
2832 sky2_pci_write16(hw
, PCI_STATUS
, status
);
2834 sky2_write8(hw
, B0_CTST
, CS_MRST_CLR
);
2836 cap
= pci_find_capability(pdev
, PCI_CAP_ID_EXP
);
2838 sky2_write32(hw
, Y2_CFG_AER
+ PCI_ERR_UNCOR_STATUS
,
2841 /* If error bit is stuck on ignore it */
2842 if (sky2_read32(hw
, B0_HWE_ISRC
) & Y2_IS_PCI_EXP
)
2843 dev_info(&pdev
->dev
, "ignoring stuck error report bit\n");
2845 hwe_mask
|= Y2_IS_PCI_EXP
;
2849 sky2_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
2851 for (i
= 0; i
< hw
->ports
; i
++) {
2852 sky2_write8(hw
, SK_REG(i
, GMAC_LINK_CTRL
), GMLC_RST_SET
);
2853 sky2_write8(hw
, SK_REG(i
, GMAC_LINK_CTRL
), GMLC_RST_CLR
);
2855 if (hw
->chip_id
== CHIP_ID_YUKON_EX
||
2856 hw
->chip_id
== CHIP_ID_YUKON_SUPR
)
2857 sky2_write16(hw
, SK_REG(i
, GMAC_CTRL
),
2858 GMC_BYP_MACSECRX_ON
| GMC_BYP_MACSECTX_ON
2862 /* Clear I2C IRQ noise */
2863 sky2_write32(hw
, B2_I2C_IRQ
, 1);
2865 /* turn off hardware timer (unused) */
2866 sky2_write8(hw
, B2_TI_CTRL
, TIM_STOP
);
2867 sky2_write8(hw
, B2_TI_CTRL
, TIM_CLR_IRQ
);
2869 sky2_write8(hw
, B0_Y2LED
, LED_STAT_ON
);
2871 /* Turn off descriptor polling */
2872 sky2_write32(hw
, B28_DPT_CTRL
, DPT_STOP
);
2874 /* Turn off receive timestamp */
2875 sky2_write8(hw
, GMAC_TI_ST_CTRL
, GMT_ST_STOP
);
2876 sky2_write8(hw
, GMAC_TI_ST_CTRL
, GMT_ST_CLR_IRQ
);
2878 /* enable the Tx Arbiters */
2879 for (i
= 0; i
< hw
->ports
; i
++)
2880 sky2_write8(hw
, SK_REG(i
, TXA_CTRL
), TXA_ENA_ARB
);
2882 /* Initialize ram interface */
2883 for (i
= 0; i
< hw
->ports
; i
++) {
2884 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_CTRL
), RI_RST_CLR
);
2886 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_R1
), SK_RI_TO_53
);
2887 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_XA1
), SK_RI_TO_53
);
2888 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_XS1
), SK_RI_TO_53
);
2889 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_R1
), SK_RI_TO_53
);
2890 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_XA1
), SK_RI_TO_53
);
2891 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_XS1
), SK_RI_TO_53
);
2892 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_R2
), SK_RI_TO_53
);
2893 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_XA2
), SK_RI_TO_53
);
2894 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_WTO_XS2
), SK_RI_TO_53
);
2895 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_R2
), SK_RI_TO_53
);
2896 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_XA2
), SK_RI_TO_53
);
2897 sky2_write8(hw
, RAM_BUFFER(i
, B3_RI_RTO_XS2
), SK_RI_TO_53
);
2900 sky2_write32(hw
, B0_HWE_IMSK
, hwe_mask
);
2902 for (i
= 0; i
< hw
->ports
; i
++)
2903 sky2_gmac_reset(hw
, i
);
2905 memset(hw
->st_le
, 0, STATUS_LE_BYTES
);
2908 sky2_write32(hw
, STAT_CTRL
, SC_STAT_RST_SET
);
2909 sky2_write32(hw
, STAT_CTRL
, SC_STAT_RST_CLR
);
2911 sky2_write32(hw
, STAT_LIST_ADDR_LO
, hw
->st_dma
);
2912 sky2_write32(hw
, STAT_LIST_ADDR_HI
, (u64
) hw
->st_dma
>> 32);
2914 /* Set the list last index */
2915 sky2_write16(hw
, STAT_LAST_IDX
, STATUS_RING_SIZE
- 1);
2917 sky2_write16(hw
, STAT_TX_IDX_TH
, 10);
2918 sky2_write8(hw
, STAT_FIFO_WM
, 16);
2920 /* set Status-FIFO ISR watermark */
2921 if (hw
->chip_id
== CHIP_ID_YUKON_XL
&& hw
->chip_rev
== 0)
2922 sky2_write8(hw
, STAT_FIFO_ISR_WM
, 4);
2924 sky2_write8(hw
, STAT_FIFO_ISR_WM
, 16);
2926 sky2_write32(hw
, STAT_TX_TIMER_INI
, sky2_us2clk(hw
, 1000));
2927 sky2_write32(hw
, STAT_ISR_TIMER_INI
, sky2_us2clk(hw
, 20));
2928 sky2_write32(hw
, STAT_LEV_TIMER_INI
, sky2_us2clk(hw
, 100));
2930 /* enable status unit */
2931 sky2_write32(hw
, STAT_CTRL
, SC_STAT_OP_ON
);
2933 sky2_write8(hw
, STAT_TX_TIMER_CTRL
, TIM_START
);
2934 sky2_write8(hw
, STAT_LEV_TIMER_CTRL
, TIM_START
);
2935 sky2_write8(hw
, STAT_ISR_TIMER_CTRL
, TIM_START
);
2938 static void sky2_restart(struct work_struct
*work
)
2940 struct sky2_hw
*hw
= container_of(work
, struct sky2_hw
, restart_work
);
2941 struct net_device
*dev
;
2945 for (i
= 0; i
< hw
->ports
; i
++) {
2947 if (netif_running(dev
))
2951 napi_disable(&hw
->napi
);
2952 sky2_write32(hw
, B0_IMSK
, 0);
2954 sky2_write32(hw
, B0_IMSK
, Y2_IS_BASE
);
2955 napi_enable(&hw
->napi
);
2957 for (i
= 0; i
< hw
->ports
; i
++) {
2959 if (netif_running(dev
)) {
2962 printk(KERN_INFO PFX
"%s: could not restart %d\n",
2972 static inline u8
sky2_wol_supported(const struct sky2_hw
*hw
)
2974 return sky2_is_copper(hw
) ? (WAKE_PHY
| WAKE_MAGIC
) : 0;
2977 static void sky2_get_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
2979 const struct sky2_port
*sky2
= netdev_priv(dev
);
2981 wol
->supported
= sky2_wol_supported(sky2
->hw
);
2982 wol
->wolopts
= sky2
->wol
;
2985 static int sky2_set_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
2987 struct sky2_port
*sky2
= netdev_priv(dev
);
2988 struct sky2_hw
*hw
= sky2
->hw
;
2990 if (wol
->wolopts
& ~sky2_wol_supported(sky2
->hw
))
2993 sky2
->wol
= wol
->wolopts
;
2995 if (hw
->chip_id
== CHIP_ID_YUKON_EC_U
||
2996 hw
->chip_id
== CHIP_ID_YUKON_EX
||
2997 hw
->chip_id
== CHIP_ID_YUKON_FE_P
)
2998 sky2_write32(hw
, B0_CTST
, sky2
->wol
2999 ? Y2_HW_WOL_ON
: Y2_HW_WOL_OFF
);
3001 if (!netif_running(dev
))
3002 sky2_wol_init(sky2
);
3006 static u32
sky2_supported_modes(const struct sky2_hw
*hw
)
3008 if (sky2_is_copper(hw
)) {
3009 u32 modes
= SUPPORTED_10baseT_Half
3010 | SUPPORTED_10baseT_Full
3011 | SUPPORTED_100baseT_Half
3012 | SUPPORTED_100baseT_Full
3013 | SUPPORTED_Autoneg
| SUPPORTED_TP
;
3015 if (hw
->flags
& SKY2_HW_GIGABIT
)
3016 modes
|= SUPPORTED_1000baseT_Half
3017 | SUPPORTED_1000baseT_Full
;
3020 return SUPPORTED_1000baseT_Half
3021 | SUPPORTED_1000baseT_Full
3026 static int sky2_get_settings(struct net_device
*dev
, struct ethtool_cmd
*ecmd
)
3028 struct sky2_port
*sky2
= netdev_priv(dev
);
3029 struct sky2_hw
*hw
= sky2
->hw
;
3031 ecmd
->transceiver
= XCVR_INTERNAL
;
3032 ecmd
->supported
= sky2_supported_modes(hw
);
3033 ecmd
->phy_address
= PHY_ADDR_MARV
;
3034 if (sky2_is_copper(hw
)) {
3035 ecmd
->port
= PORT_TP
;
3036 ecmd
->speed
= sky2
->speed
;
3038 ecmd
->speed
= SPEED_1000
;
3039 ecmd
->port
= PORT_FIBRE
;
3042 ecmd
->advertising
= sky2
->advertising
;
3043 ecmd
->autoneg
= sky2
->autoneg
;
3044 ecmd
->duplex
= sky2
->duplex
;
3048 static int sky2_set_settings(struct net_device
*dev
, struct ethtool_cmd
*ecmd
)
3050 struct sky2_port
*sky2
= netdev_priv(dev
);
3051 const struct sky2_hw
*hw
= sky2
->hw
;
3052 u32 supported
= sky2_supported_modes(hw
);
3054 if (ecmd
->autoneg
== AUTONEG_ENABLE
) {
3055 ecmd
->advertising
= supported
;
3061 switch (ecmd
->speed
) {
3063 if (ecmd
->duplex
== DUPLEX_FULL
)
3064 setting
= SUPPORTED_1000baseT_Full
;
3065 else if (ecmd
->duplex
== DUPLEX_HALF
)
3066 setting
= SUPPORTED_1000baseT_Half
;
3071 if (ecmd
->duplex
== DUPLEX_FULL
)
3072 setting
= SUPPORTED_100baseT_Full
;
3073 else if (ecmd
->duplex
== DUPLEX_HALF
)
3074 setting
= SUPPORTED_100baseT_Half
;
3080 if (ecmd
->duplex
== DUPLEX_FULL
)
3081 setting
= SUPPORTED_10baseT_Full
;
3082 else if (ecmd
->duplex
== DUPLEX_HALF
)
3083 setting
= SUPPORTED_10baseT_Half
;
3091 if ((setting
& supported
) == 0)
3094 sky2
->speed
= ecmd
->speed
;
3095 sky2
->duplex
= ecmd
->duplex
;
3098 sky2
->autoneg
= ecmd
->autoneg
;
3099 sky2
->advertising
= ecmd
->advertising
;
3101 if (netif_running(dev
)) {
3102 sky2_phy_reinit(sky2
);
3103 sky2_set_multicast(dev
);
3109 static void sky2_get_drvinfo(struct net_device
*dev
,
3110 struct ethtool_drvinfo
*info
)
3112 struct sky2_port
*sky2
= netdev_priv(dev
);
3114 strcpy(info
->driver
, DRV_NAME
);
3115 strcpy(info
->version
, DRV_VERSION
);
3116 strcpy(info
->fw_version
, "N/A");
3117 strcpy(info
->bus_info
, pci_name(sky2
->hw
->pdev
));
3120 static const struct sky2_stat
{
3121 char name
[ETH_GSTRING_LEN
];
3124 { "tx_bytes", GM_TXO_OK_HI
},
3125 { "rx_bytes", GM_RXO_OK_HI
},
3126 { "tx_broadcast", GM_TXF_BC_OK
},
3127 { "rx_broadcast", GM_RXF_BC_OK
},
3128 { "tx_multicast", GM_TXF_MC_OK
},
3129 { "rx_multicast", GM_RXF_MC_OK
},
3130 { "tx_unicast", GM_TXF_UC_OK
},
3131 { "rx_unicast", GM_RXF_UC_OK
},
3132 { "tx_mac_pause", GM_TXF_MPAUSE
},
3133 { "rx_mac_pause", GM_RXF_MPAUSE
},
3134 { "collisions", GM_TXF_COL
},
3135 { "late_collision",GM_TXF_LAT_COL
},
3136 { "aborted", GM_TXF_ABO_COL
},
3137 { "single_collisions", GM_TXF_SNG_COL
},
3138 { "multi_collisions", GM_TXF_MUL_COL
},
3140 { "rx_short", GM_RXF_SHT
},
3141 { "rx_runt", GM_RXE_FRAG
},
3142 { "rx_64_byte_packets", GM_RXF_64B
},
3143 { "rx_65_to_127_byte_packets", GM_RXF_127B
},
3144 { "rx_128_to_255_byte_packets", GM_RXF_255B
},
3145 { "rx_256_to_511_byte_packets", GM_RXF_511B
},
3146 { "rx_512_to_1023_byte_packets", GM_RXF_1023B
},
3147 { "rx_1024_to_1518_byte_packets", GM_RXF_1518B
},
3148 { "rx_1518_to_max_byte_packets", GM_RXF_MAX_SZ
},
3149 { "rx_too_long", GM_RXF_LNG_ERR
},
3150 { "rx_fifo_overflow", GM_RXE_FIFO_OV
},
3151 { "rx_jabber", GM_RXF_JAB_PKT
},
3152 { "rx_fcs_error", GM_RXF_FCS_ERR
},
3154 { "tx_64_byte_packets", GM_TXF_64B
},
3155 { "tx_65_to_127_byte_packets", GM_TXF_127B
},
3156 { "tx_128_to_255_byte_packets", GM_TXF_255B
},
3157 { "tx_256_to_511_byte_packets", GM_TXF_511B
},
3158 { "tx_512_to_1023_byte_packets", GM_TXF_1023B
},
3159 { "tx_1024_to_1518_byte_packets", GM_TXF_1518B
},
3160 { "tx_1519_to_max_byte_packets", GM_TXF_MAX_SZ
},
3161 { "tx_fifo_underrun", GM_TXE_FIFO_UR
},
3164 static u32
sky2_get_rx_csum(struct net_device
*dev
)
3166 struct sky2_port
*sky2
= netdev_priv(dev
);
3168 return sky2
->rx_csum
;
3171 static int sky2_set_rx_csum(struct net_device
*dev
, u32 data
)
3173 struct sky2_port
*sky2
= netdev_priv(dev
);
3175 sky2
->rx_csum
= data
;
3177 sky2_write32(sky2
->hw
, Q_ADDR(rxqaddr
[sky2
->port
], Q_CSR
),
3178 data
? BMU_ENA_RX_CHKSUM
: BMU_DIS_RX_CHKSUM
);
3183 static u32
sky2_get_msglevel(struct net_device
*netdev
)
3185 struct sky2_port
*sky2
= netdev_priv(netdev
);
3186 return sky2
->msg_enable
;
3189 static int sky2_nway_reset(struct net_device
*dev
)
3191 struct sky2_port
*sky2
= netdev_priv(dev
);
3193 if (!netif_running(dev
) || sky2
->autoneg
!= AUTONEG_ENABLE
)
3196 sky2_phy_reinit(sky2
);
3197 sky2_set_multicast(dev
);
3202 static void sky2_phy_stats(struct sky2_port
*sky2
, u64
* data
, unsigned count
)
3204 struct sky2_hw
*hw
= sky2
->hw
;
3205 unsigned port
= sky2
->port
;
3208 data
[0] = (u64
) gma_read32(hw
, port
, GM_TXO_OK_HI
) << 32
3209 | (u64
) gma_read32(hw
, port
, GM_TXO_OK_LO
);
3210 data
[1] = (u64
) gma_read32(hw
, port
, GM_RXO_OK_HI
) << 32
3211 | (u64
) gma_read32(hw
, port
, GM_RXO_OK_LO
);
3213 for (i
= 2; i
< count
; i
++)
3214 data
[i
] = (u64
) gma_read32(hw
, port
, sky2_stats
[i
].offset
);
3217 static void sky2_set_msglevel(struct net_device
*netdev
, u32 value
)
3219 struct sky2_port
*sky2
= netdev_priv(netdev
);
3220 sky2
->msg_enable
= value
;
3223 static int sky2_get_sset_count(struct net_device
*dev
, int sset
)
3227 return ARRAY_SIZE(sky2_stats
);
3233 static void sky2_get_ethtool_stats(struct net_device
*dev
,
3234 struct ethtool_stats
*stats
, u64
* data
)
3236 struct sky2_port
*sky2
= netdev_priv(dev
);
3238 sky2_phy_stats(sky2
, data
, ARRAY_SIZE(sky2_stats
));
3241 static void sky2_get_strings(struct net_device
*dev
, u32 stringset
, u8
* data
)
3245 switch (stringset
) {
3247 for (i
= 0; i
< ARRAY_SIZE(sky2_stats
); i
++)
3248 memcpy(data
+ i
* ETH_GSTRING_LEN
,
3249 sky2_stats
[i
].name
, ETH_GSTRING_LEN
);
3254 static int sky2_set_mac_address(struct net_device
*dev
, void *p
)
3256 struct sky2_port
*sky2
= netdev_priv(dev
);
3257 struct sky2_hw
*hw
= sky2
->hw
;
3258 unsigned port
= sky2
->port
;
3259 const struct sockaddr
*addr
= p
;
3261 if (!is_valid_ether_addr(addr
->sa_data
))
3262 return -EADDRNOTAVAIL
;
3264 memcpy(dev
->dev_addr
, addr
->sa_data
, ETH_ALEN
);
3265 memcpy_toio(hw
->regs
+ B2_MAC_1
+ port
* 8,
3266 dev
->dev_addr
, ETH_ALEN
);
3267 memcpy_toio(hw
->regs
+ B2_MAC_2
+ port
* 8,
3268 dev
->dev_addr
, ETH_ALEN
);
3270 /* virtual address for data */
3271 gma_set_addr(hw
, port
, GM_SRC_ADDR_2L
, dev
->dev_addr
);
3273 /* physical address: used for pause frames */
3274 gma_set_addr(hw
, port
, GM_SRC_ADDR_1L
, dev
->dev_addr
);
3279 static void inline sky2_add_filter(u8 filter
[8], const u8
*addr
)
3283 bit
= ether_crc(ETH_ALEN
, addr
) & 63;
3284 filter
[bit
>> 3] |= 1 << (bit
& 7);
3287 static void sky2_set_multicast(struct net_device
*dev
)
3289 struct sky2_port
*sky2
= netdev_priv(dev
);
3290 struct sky2_hw
*hw
= sky2
->hw
;
3291 unsigned port
= sky2
->port
;
3292 struct dev_mc_list
*list
= dev
->mc_list
;
3296 static const u8 pause_mc_addr
[ETH_ALEN
] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 };
3298 rx_pause
= (sky2
->flow_status
== FC_RX
|| sky2
->flow_status
== FC_BOTH
);
3299 memset(filter
, 0, sizeof(filter
));
3301 reg
= gma_read16(hw
, port
, GM_RX_CTRL
);
3302 reg
|= GM_RXCR_UCF_ENA
;
3304 if (dev
->flags
& IFF_PROMISC
) /* promiscuous */
3305 reg
&= ~(GM_RXCR_UCF_ENA
| GM_RXCR_MCF_ENA
);
3306 else if (dev
->flags
& IFF_ALLMULTI
)
3307 memset(filter
, 0xff, sizeof(filter
));
3308 else if (dev
->mc_count
== 0 && !rx_pause
)
3309 reg
&= ~GM_RXCR_MCF_ENA
;
3312 reg
|= GM_RXCR_MCF_ENA
;
3315 sky2_add_filter(filter
, pause_mc_addr
);
3317 for (i
= 0; list
&& i
< dev
->mc_count
; i
++, list
= list
->next
)
3318 sky2_add_filter(filter
, list
->dmi_addr
);
3321 gma_write16(hw
, port
, GM_MC_ADDR_H1
,
3322 (u16
) filter
[0] | ((u16
) filter
[1] << 8));
3323 gma_write16(hw
, port
, GM_MC_ADDR_H2
,
3324 (u16
) filter
[2] | ((u16
) filter
[3] << 8));
3325 gma_write16(hw
, port
, GM_MC_ADDR_H3
,
3326 (u16
) filter
[4] | ((u16
) filter
[5] << 8));
3327 gma_write16(hw
, port
, GM_MC_ADDR_H4
,
3328 (u16
) filter
[6] | ((u16
) filter
[7] << 8));
3330 gma_write16(hw
, port
, GM_RX_CTRL
, reg
);
3333 /* Can have one global because blinking is controlled by
3334 * ethtool and that is always under RTNL mutex
3336 static void sky2_led(struct sky2_port
*sky2
, enum led_mode mode
)
3338 struct sky2_hw
*hw
= sky2
->hw
;
3339 unsigned port
= sky2
->port
;
3341 spin_lock_bh(&sky2
->phy_lock
);
3342 if (hw
->chip_id
== CHIP_ID_YUKON_EC_U
||
3343 hw
->chip_id
== CHIP_ID_YUKON_EX
||
3344 hw
->chip_id
== CHIP_ID_YUKON_SUPR
) {
3346 pg
= gm_phy_read(hw
, port
, PHY_MARV_EXT_ADR
);
3347 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, 3);
3351 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
,
3352 PHY_M_LEDC_LOS_CTRL(8) |
3353 PHY_M_LEDC_INIT_CTRL(8) |
3354 PHY_M_LEDC_STA1_CTRL(8) |
3355 PHY_M_LEDC_STA0_CTRL(8));
3358 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
,
3359 PHY_M_LEDC_LOS_CTRL(9) |
3360 PHY_M_LEDC_INIT_CTRL(9) |
3361 PHY_M_LEDC_STA1_CTRL(9) |
3362 PHY_M_LEDC_STA0_CTRL(9));
3365 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
,
3366 PHY_M_LEDC_LOS_CTRL(0xa) |
3367 PHY_M_LEDC_INIT_CTRL(0xa) |
3368 PHY_M_LEDC_STA1_CTRL(0xa) |
3369 PHY_M_LEDC_STA0_CTRL(0xa));
3372 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
,
3373 PHY_M_LEDC_LOS_CTRL(1) |
3374 PHY_M_LEDC_INIT_CTRL(8) |
3375 PHY_M_LEDC_STA1_CTRL(7) |
3376 PHY_M_LEDC_STA0_CTRL(7));
3379 gm_phy_write(hw
, port
, PHY_MARV_EXT_ADR
, pg
);
3381 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
,
3382 PHY_M_LED_MO_DUP(mode
) |
3383 PHY_M_LED_MO_10(mode
) |
3384 PHY_M_LED_MO_100(mode
) |
3385 PHY_M_LED_MO_1000(mode
) |
3386 PHY_M_LED_MO_RX(mode
) |
3387 PHY_M_LED_MO_TX(mode
));
3389 spin_unlock_bh(&sky2
->phy_lock
);
3392 /* blink LED's for finding board */
3393 static int sky2_phys_id(struct net_device
*dev
, u32 data
)
3395 struct sky2_port
*sky2
= netdev_priv(dev
);
3401 for (i
= 0; i
< data
; i
++) {
3402 sky2_led(sky2
, MO_LED_ON
);
3403 if (msleep_interruptible(500))
3405 sky2_led(sky2
, MO_LED_OFF
);
3406 if (msleep_interruptible(500))
3409 sky2_led(sky2
, MO_LED_NORM
);
3414 static void sky2_get_pauseparam(struct net_device
*dev
,
3415 struct ethtool_pauseparam
*ecmd
)
3417 struct sky2_port
*sky2
= netdev_priv(dev
);
3419 switch (sky2
->flow_mode
) {
3421 ecmd
->tx_pause
= ecmd
->rx_pause
= 0;
3424 ecmd
->tx_pause
= 1, ecmd
->rx_pause
= 0;
3427 ecmd
->tx_pause
= 0, ecmd
->rx_pause
= 1;
3430 ecmd
->tx_pause
= ecmd
->rx_pause
= 1;
3433 ecmd
->autoneg
= sky2
->autoneg
;
3436 static int sky2_set_pauseparam(struct net_device
*dev
,
3437 struct ethtool_pauseparam
*ecmd
)
3439 struct sky2_port
*sky2
= netdev_priv(dev
);
3441 sky2
->autoneg
= ecmd
->autoneg
;
3442 sky2
->flow_mode
= sky2_flow(ecmd
->rx_pause
, ecmd
->tx_pause
);
3444 if (netif_running(dev
))
3445 sky2_phy_reinit(sky2
);
3450 static int sky2_get_coalesce(struct net_device
*dev
,
3451 struct ethtool_coalesce
*ecmd
)
3453 struct sky2_port
*sky2
= netdev_priv(dev
);
3454 struct sky2_hw
*hw
= sky2
->hw
;
3456 if (sky2_read8(hw
, STAT_TX_TIMER_CTRL
) == TIM_STOP
)
3457 ecmd
->tx_coalesce_usecs
= 0;
3459 u32 clks
= sky2_read32(hw
, STAT_TX_TIMER_INI
);
3460 ecmd
->tx_coalesce_usecs
= sky2_clk2us(hw
, clks
);
3462 ecmd
->tx_max_coalesced_frames
= sky2_read16(hw
, STAT_TX_IDX_TH
);
3464 if (sky2_read8(hw
, STAT_LEV_TIMER_CTRL
) == TIM_STOP
)
3465 ecmd
->rx_coalesce_usecs
= 0;
3467 u32 clks
= sky2_read32(hw
, STAT_LEV_TIMER_INI
);
3468 ecmd
->rx_coalesce_usecs
= sky2_clk2us(hw
, clks
);
3470 ecmd
->rx_max_coalesced_frames
= sky2_read8(hw
, STAT_FIFO_WM
);
3472 if (sky2_read8(hw
, STAT_ISR_TIMER_CTRL
) == TIM_STOP
)
3473 ecmd
->rx_coalesce_usecs_irq
= 0;
3475 u32 clks
= sky2_read32(hw
, STAT_ISR_TIMER_INI
);
3476 ecmd
->rx_coalesce_usecs_irq
= sky2_clk2us(hw
, clks
);
3479 ecmd
->rx_max_coalesced_frames_irq
= sky2_read8(hw
, STAT_FIFO_ISR_WM
);
3484 /* Note: this affect both ports */
3485 static int sky2_set_coalesce(struct net_device
*dev
,
3486 struct ethtool_coalesce
*ecmd
)
3488 struct sky2_port
*sky2
= netdev_priv(dev
);
3489 struct sky2_hw
*hw
= sky2
->hw
;
3490 const u32 tmax
= sky2_clk2us(hw
, 0x0ffffff);
3492 if (ecmd
->tx_coalesce_usecs
> tmax
||
3493 ecmd
->rx_coalesce_usecs
> tmax
||
3494 ecmd
->rx_coalesce_usecs_irq
> tmax
)
3497 if (ecmd
->tx_max_coalesced_frames
>= TX_RING_SIZE
-1)
3499 if (ecmd
->rx_max_coalesced_frames
> RX_MAX_PENDING
)
3501 if (ecmd
->rx_max_coalesced_frames_irq
>RX_MAX_PENDING
)
3504 if (ecmd
->tx_coalesce_usecs
== 0)
3505 sky2_write8(hw
, STAT_TX_TIMER_CTRL
, TIM_STOP
);
3507 sky2_write32(hw
, STAT_TX_TIMER_INI
,
3508 sky2_us2clk(hw
, ecmd
->tx_coalesce_usecs
));
3509 sky2_write8(hw
, STAT_TX_TIMER_CTRL
, TIM_START
);
3511 sky2_write16(hw
, STAT_TX_IDX_TH
, ecmd
->tx_max_coalesced_frames
);
3513 if (ecmd
->rx_coalesce_usecs
== 0)
3514 sky2_write8(hw
, STAT_LEV_TIMER_CTRL
, TIM_STOP
);
3516 sky2_write32(hw
, STAT_LEV_TIMER_INI
,
3517 sky2_us2clk(hw
, ecmd
->rx_coalesce_usecs
));
3518 sky2_write8(hw
, STAT_LEV_TIMER_CTRL
, TIM_START
);
3520 sky2_write8(hw
, STAT_FIFO_WM
, ecmd
->rx_max_coalesced_frames
);
3522 if (ecmd
->rx_coalesce_usecs_irq
== 0)
3523 sky2_write8(hw
, STAT_ISR_TIMER_CTRL
, TIM_STOP
);
3525 sky2_write32(hw
, STAT_ISR_TIMER_INI
,
3526 sky2_us2clk(hw
, ecmd
->rx_coalesce_usecs_irq
));
3527 sky2_write8(hw
, STAT_ISR_TIMER_CTRL
, TIM_START
);
3529 sky2_write8(hw
, STAT_FIFO_ISR_WM
, ecmd
->rx_max_coalesced_frames_irq
);
3533 static void sky2_get_ringparam(struct net_device
*dev
,
3534 struct ethtool_ringparam
*ering
)
3536 struct sky2_port
*sky2
= netdev_priv(dev
);
3538 ering
->rx_max_pending
= RX_MAX_PENDING
;
3539 ering
->rx_mini_max_pending
= 0;
3540 ering
->rx_jumbo_max_pending
= 0;
3541 ering
->tx_max_pending
= TX_RING_SIZE
- 1;
3543 ering
->rx_pending
= sky2
->rx_pending
;
3544 ering
->rx_mini_pending
= 0;
3545 ering
->rx_jumbo_pending
= 0;
3546 ering
->tx_pending
= sky2
->tx_pending
;
3549 static int sky2_set_ringparam(struct net_device
*dev
,
3550 struct ethtool_ringparam
*ering
)
3552 struct sky2_port
*sky2
= netdev_priv(dev
);
3555 if (ering
->rx_pending
> RX_MAX_PENDING
||
3556 ering
->rx_pending
< 8 ||
3557 ering
->tx_pending
< MAX_SKB_TX_LE
||
3558 ering
->tx_pending
> TX_RING_SIZE
- 1)
3561 if (netif_running(dev
))
3564 sky2
->rx_pending
= ering
->rx_pending
;
3565 sky2
->tx_pending
= ering
->tx_pending
;
3567 if (netif_running(dev
)) {
3576 static int sky2_get_regs_len(struct net_device
*dev
)
3582 * Returns copy of control register region
3583 * Note: ethtool_get_regs always provides full size (16k) buffer
3585 static void sky2_get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
3588 const struct sky2_port
*sky2
= netdev_priv(dev
);
3589 const void __iomem
*io
= sky2
->hw
->regs
;
3594 for (b
= 0; b
< 128; b
++) {
3595 /* This complicated switch statement is to make sure and
3596 * only access regions that are unreserved.
3597 * Some blocks are only valid on dual port cards.
3598 * and block 3 has some special diagnostic registers that
3603 /* skip diagnostic ram region */
3604 memcpy_fromio(p
+ 0x10, io
+ 0x10, 128 - 0x10);
3607 /* dual port cards only */
3608 case 5: /* Tx Arbiter 2 */
3610 case 14 ... 15: /* TX2 */
3611 case 17: case 19: /* Ram Buffer 2 */
3612 case 22 ... 23: /* Tx Ram Buffer 2 */
3613 case 25: /* Rx MAC Fifo 1 */
3614 case 27: /* Tx MAC Fifo 2 */
3615 case 31: /* GPHY 2 */
3616 case 40 ... 47: /* Pattern Ram 2 */
3617 case 52: case 54: /* TCP Segmentation 2 */
3618 case 112 ... 116: /* GMAC 2 */
3619 if (sky2
->hw
->ports
== 1)
3622 case 0: /* Control */
3623 case 2: /* Mac address */
3624 case 4: /* Tx Arbiter 1 */
3625 case 7: /* PCI express reg */
3627 case 12 ... 13: /* TX1 */
3628 case 16: case 18:/* Rx Ram Buffer 1 */
3629 case 20 ... 21: /* Tx Ram Buffer 1 */
3630 case 24: /* Rx MAC Fifo 1 */
3631 case 26: /* Tx MAC Fifo 1 */
3632 case 28 ... 29: /* Descriptor and status unit */
3633 case 30: /* GPHY 1*/
3634 case 32 ... 39: /* Pattern Ram 1 */
3635 case 48: case 50: /* TCP Segmentation 1 */
3636 case 56 ... 60: /* PCI space */
3637 case 80 ... 84: /* GMAC 1 */
3638 memcpy_fromio(p
, io
, 128);
3650 /* In order to do Jumbo packets on these chips, need to turn off the
3651 * transmit store/forward. Therefore checksum offload won't work.
3653 static int no_tx_offload(struct net_device
*dev
)
3655 const struct sky2_port
*sky2
= netdev_priv(dev
);
3656 const struct sky2_hw
*hw
= sky2
->hw
;
3658 return dev
->mtu
> ETH_DATA_LEN
&& hw
->chip_id
== CHIP_ID_YUKON_EC_U
;
3661 static int sky2_set_tx_csum(struct net_device
*dev
, u32 data
)
3663 if (data
&& no_tx_offload(dev
))
3666 return ethtool_op_set_tx_csum(dev
, data
);
3670 static int sky2_set_tso(struct net_device
*dev
, u32 data
)
3672 if (data
&& no_tx_offload(dev
))
3675 return ethtool_op_set_tso(dev
, data
);
3678 static int sky2_get_eeprom_len(struct net_device
*dev
)
3680 struct sky2_port
*sky2
= netdev_priv(dev
);
3681 struct sky2_hw
*hw
= sky2
->hw
;
3684 reg2
= sky2_pci_read16(hw
, PCI_DEV_REG2
);
3685 return 1 << ( ((reg2
& PCI_VPD_ROM_SZ
) >> 14) + 8);
3688 static u32
sky2_vpd_read(struct sky2_hw
*hw
, int cap
, u16 offset
)
3692 sky2_pci_write16(hw
, cap
+ PCI_VPD_ADDR
, offset
);
3695 offset
= sky2_pci_read16(hw
, cap
+ PCI_VPD_ADDR
);
3696 } while (!(offset
& PCI_VPD_ADDR_F
));
3698 val
= sky2_pci_read32(hw
, cap
+ PCI_VPD_DATA
);
3702 static void sky2_vpd_write(struct sky2_hw
*hw
, int cap
, u16 offset
, u32 val
)
3704 sky2_pci_write16(hw
, cap
+ PCI_VPD_DATA
, val
);
3705 sky2_pci_write32(hw
, cap
+ PCI_VPD_ADDR
, offset
| PCI_VPD_ADDR_F
);
3707 offset
= sky2_pci_read16(hw
, cap
+ PCI_VPD_ADDR
);
3708 } while (offset
& PCI_VPD_ADDR_F
);
3711 static int sky2_get_eeprom(struct net_device
*dev
, struct ethtool_eeprom
*eeprom
,
3714 struct sky2_port
*sky2
= netdev_priv(dev
);
3715 int cap
= pci_find_capability(sky2
->hw
->pdev
, PCI_CAP_ID_VPD
);
3716 int length
= eeprom
->len
;
3717 u16 offset
= eeprom
->offset
;
3722 eeprom
->magic
= SKY2_EEPROM_MAGIC
;
3724 while (length
> 0) {
3725 u32 val
= sky2_vpd_read(sky2
->hw
, cap
, offset
);
3726 int n
= min_t(int, length
, sizeof(val
));
3728 memcpy(data
, &val
, n
);
3736 static int sky2_set_eeprom(struct net_device
*dev
, struct ethtool_eeprom
*eeprom
,
3739 struct sky2_port
*sky2
= netdev_priv(dev
);
3740 int cap
= pci_find_capability(sky2
->hw
->pdev
, PCI_CAP_ID_VPD
);
3741 int length
= eeprom
->len
;
3742 u16 offset
= eeprom
->offset
;
3747 if (eeprom
->magic
!= SKY2_EEPROM_MAGIC
)
3750 while (length
> 0) {
3752 int n
= min_t(int, length
, sizeof(val
));
3754 if (n
< sizeof(val
))
3755 val
= sky2_vpd_read(sky2
->hw
, cap
, offset
);
3756 memcpy(&val
, data
, n
);
3758 sky2_vpd_write(sky2
->hw
, cap
, offset
, val
);
3768 static const struct ethtool_ops sky2_ethtool_ops
= {
3769 .get_settings
= sky2_get_settings
,
3770 .set_settings
= sky2_set_settings
,
3771 .get_drvinfo
= sky2_get_drvinfo
,
3772 .get_wol
= sky2_get_wol
,
3773 .set_wol
= sky2_set_wol
,
3774 .get_msglevel
= sky2_get_msglevel
,
3775 .set_msglevel
= sky2_set_msglevel
,
3776 .nway_reset
= sky2_nway_reset
,
3777 .get_regs_len
= sky2_get_regs_len
,
3778 .get_regs
= sky2_get_regs
,
3779 .get_link
= ethtool_op_get_link
,
3780 .get_eeprom_len
= sky2_get_eeprom_len
,
3781 .get_eeprom
= sky2_get_eeprom
,
3782 .set_eeprom
= sky2_set_eeprom
,
3783 .set_sg
= ethtool_op_set_sg
,
3784 .set_tx_csum
= sky2_set_tx_csum
,
3785 .set_tso
= sky2_set_tso
,
3786 .get_rx_csum
= sky2_get_rx_csum
,
3787 .set_rx_csum
= sky2_set_rx_csum
,
3788 .get_strings
= sky2_get_strings
,
3789 .get_coalesce
= sky2_get_coalesce
,
3790 .set_coalesce
= sky2_set_coalesce
,
3791 .get_ringparam
= sky2_get_ringparam
,
3792 .set_ringparam
= sky2_set_ringparam
,
3793 .get_pauseparam
= sky2_get_pauseparam
,
3794 .set_pauseparam
= sky2_set_pauseparam
,
3795 .phys_id
= sky2_phys_id
,
3796 .get_sset_count
= sky2_get_sset_count
,
3797 .get_ethtool_stats
= sky2_get_ethtool_stats
,
3800 #ifdef CONFIG_SKY2_DEBUG
3802 static struct dentry
*sky2_debug
;
3804 static int sky2_debug_show(struct seq_file
*seq
, void *v
)
3806 struct net_device
*dev
= seq
->private;
3807 const struct sky2_port
*sky2
= netdev_priv(dev
);
3808 struct sky2_hw
*hw
= sky2
->hw
;
3809 unsigned port
= sky2
->port
;
3813 if (!netif_running(dev
))
3816 seq_printf(seq
, "IRQ src=%x mask=%x control=%x\n",
3817 sky2_read32(hw
, B0_ISRC
),
3818 sky2_read32(hw
, B0_IMSK
),
3819 sky2_read32(hw
, B0_Y2_SP_ICR
));
3821 napi_disable(&hw
->napi
);
3822 last
= sky2_read16(hw
, STAT_PUT_IDX
);
3824 if (hw
->st_idx
== last
)
3825 seq_puts(seq
, "Status ring (empty)\n");
3827 seq_puts(seq
, "Status ring\n");
3828 for (idx
= hw
->st_idx
; idx
!= last
&& idx
< STATUS_RING_SIZE
;
3829 idx
= RING_NEXT(idx
, STATUS_RING_SIZE
)) {
3830 const struct sky2_status_le
*le
= hw
->st_le
+ idx
;
3831 seq_printf(seq
, "[%d] %#x %d %#x\n",
3832 idx
, le
->opcode
, le
->length
, le
->status
);
3834 seq_puts(seq
, "\n");
3837 seq_printf(seq
, "Tx ring pending=%u...%u report=%d done=%d\n",
3838 sky2
->tx_cons
, sky2
->tx_prod
,
3839 sky2_read16(hw
, port
== 0 ? STAT_TXA1_RIDX
: STAT_TXA2_RIDX
),
3840 sky2_read16(hw
, Q_ADDR(txqaddr
[port
], Q_DONE
)));
3842 /* Dump contents of tx ring */
3844 for (idx
= sky2
->tx_next
; idx
!= sky2
->tx_prod
&& idx
< TX_RING_SIZE
;
3845 idx
= RING_NEXT(idx
, TX_RING_SIZE
)) {
3846 const struct sky2_tx_le
*le
= sky2
->tx_le
+ idx
;
3847 u32 a
= le32_to_cpu(le
->addr
);
3850 seq_printf(seq
, "%u:", idx
);
3853 switch(le
->opcode
& ~HW_OWNER
) {
3855 seq_printf(seq
, " %#x:", a
);
3858 seq_printf(seq
, " mtu=%d", a
);
3861 seq_printf(seq
, " vlan=%d", be16_to_cpu(le
->length
));
3864 seq_printf(seq
, " csum=%#x", a
);
3867 seq_printf(seq
, " tso=%#x(%d)", a
, le16_to_cpu(le
->length
));
3870 seq_printf(seq
, " %#x(%d)", a
, le16_to_cpu(le
->length
));
3873 seq_printf(seq
, " frag=%#x(%d)", a
, le16_to_cpu(le
->length
));
3876 seq_printf(seq
, " op=%#x,%#x(%d)", le
->opcode
,
3877 a
, le16_to_cpu(le
->length
));
3880 if (le
->ctrl
& EOP
) {
3881 seq_putc(seq
, '\n');
3886 seq_printf(seq
, "\nRx ring hw get=%d put=%d last=%d\n",
3887 sky2_read16(hw
, Y2_QADDR(rxqaddr
[port
], PREF_UNIT_GET_IDX
)),
3888 last
= sky2_read16(hw
, Y2_QADDR(rxqaddr
[port
], PREF_UNIT_PUT_IDX
)),
3889 sky2_read16(hw
, Y2_QADDR(rxqaddr
[port
], PREF_UNIT_LAST_IDX
)));
3891 sky2_read32(hw
, B0_Y2_SP_LISR
);
3892 napi_enable(&hw
->napi
);
3896 static int sky2_debug_open(struct inode
*inode
, struct file
*file
)
3898 return single_open(file
, sky2_debug_show
, inode
->i_private
);
3901 static const struct file_operations sky2_debug_fops
= {
3902 .owner
= THIS_MODULE
,
3903 .open
= sky2_debug_open
,
3905 .llseek
= seq_lseek
,
3906 .release
= single_release
,
3910 * Use network device events to create/remove/rename
3911 * debugfs file entries
3913 static int sky2_device_event(struct notifier_block
*unused
,
3914 unsigned long event
, void *ptr
)
3916 struct net_device
*dev
= ptr
;
3917 struct sky2_port
*sky2
= netdev_priv(dev
);
3919 if (dev
->open
!= sky2_up
|| !sky2_debug
)
3923 case NETDEV_CHANGENAME
:
3924 if (sky2
->debugfs
) {
3925 sky2
->debugfs
= debugfs_rename(sky2_debug
, sky2
->debugfs
,
3926 sky2_debug
, dev
->name
);
3930 case NETDEV_GOING_DOWN
:
3931 if (sky2
->debugfs
) {
3932 printk(KERN_DEBUG PFX
"%s: remove debugfs\n",
3934 debugfs_remove(sky2
->debugfs
);
3935 sky2
->debugfs
= NULL
;
3940 sky2
->debugfs
= debugfs_create_file(dev
->name
, S_IRUGO
,
3943 if (IS_ERR(sky2
->debugfs
))
3944 sky2
->debugfs
= NULL
;
3950 static struct notifier_block sky2_notifier
= {
3951 .notifier_call
= sky2_device_event
,
3955 static __init
void sky2_debug_init(void)
3959 ent
= debugfs_create_dir("sky2", NULL
);
3960 if (!ent
|| IS_ERR(ent
))
3964 register_netdevice_notifier(&sky2_notifier
);
3967 static __exit
void sky2_debug_cleanup(void)
3970 unregister_netdevice_notifier(&sky2_notifier
);
3971 debugfs_remove(sky2_debug
);
3977 #define sky2_debug_init()
3978 #define sky2_debug_cleanup()
3982 /* Initialize network device */
3983 static __devinit
struct net_device
*sky2_init_netdev(struct sky2_hw
*hw
,
3985 int highmem
, int wol
)
3987 struct sky2_port
*sky2
;
3988 struct net_device
*dev
= alloc_etherdev(sizeof(*sky2
));
3991 dev_err(&hw
->pdev
->dev
, "etherdev alloc failed\n");
3995 SET_NETDEV_DEV(dev
, &hw
->pdev
->dev
);
3996 dev
->irq
= hw
->pdev
->irq
;
3997 dev
->open
= sky2_up
;
3998 dev
->stop
= sky2_down
;
3999 dev
->do_ioctl
= sky2_ioctl
;
4000 dev
->hard_start_xmit
= sky2_xmit_frame
;
4001 dev
->set_multicast_list
= sky2_set_multicast
;
4002 dev
->set_mac_address
= sky2_set_mac_address
;
4003 dev
->change_mtu
= sky2_change_mtu
;
4004 SET_ETHTOOL_OPS(dev
, &sky2_ethtool_ops
);
4005 dev
->tx_timeout
= sky2_tx_timeout
;
4006 dev
->watchdog_timeo
= TX_WATCHDOG
;
4007 #ifdef CONFIG_NET_POLL_CONTROLLER
4009 dev
->poll_controller
= sky2_netpoll
;
4012 sky2
= netdev_priv(dev
);
4015 sky2
->msg_enable
= netif_msg_init(debug
, default_msg
);
4017 /* Auto speed and flow control */
4018 sky2
->autoneg
= AUTONEG_ENABLE
;
4019 sky2
->flow_mode
= FC_BOTH
;
4023 sky2
->advertising
= sky2_supported_modes(hw
);
4024 sky2
->rx_csum
= (hw
->chip_id
!= CHIP_ID_YUKON_XL
);
4027 spin_lock_init(&sky2
->phy_lock
);
4028 sky2
->tx_pending
= TX_DEF_PENDING
;
4029 sky2
->rx_pending
= RX_DEF_PENDING
;
4031 hw
->dev
[port
] = dev
;
4035 dev
->features
|= NETIF_F_TSO
| NETIF_F_IP_CSUM
| NETIF_F_SG
;
4037 dev
->features
|= NETIF_F_HIGHDMA
;
4039 #ifdef SKY2_VLAN_TAG_USED
4040 /* The workaround for FE+ status conflicts with VLAN tag detection. */
4041 if (!(sky2
->hw
->chip_id
== CHIP_ID_YUKON_FE_P
&&
4042 sky2
->hw
->chip_rev
== CHIP_REV_YU_FE2_A0
)) {
4043 dev
->features
|= NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX
;
4044 dev
->vlan_rx_register
= sky2_vlan_rx_register
;
4048 /* read the mac address */
4049 memcpy_fromio(dev
->dev_addr
, hw
->regs
+ B2_MAC_1
+ port
* 8, ETH_ALEN
);
4050 memcpy(dev
->perm_addr
, dev
->dev_addr
, dev
->addr_len
);
4055 static void __devinit
sky2_show_addr(struct net_device
*dev
)
4057 const struct sky2_port
*sky2
= netdev_priv(dev
);
4058 DECLARE_MAC_BUF(mac
);
4060 if (netif_msg_probe(sky2
))
4061 printk(KERN_INFO PFX
"%s: addr %s\n",
4062 dev
->name
, print_mac(mac
, dev
->dev_addr
));
4065 /* Handle software interrupt used during MSI test */
4066 static irqreturn_t __devinit
sky2_test_intr(int irq
, void *dev_id
)
4068 struct sky2_hw
*hw
= dev_id
;
4069 u32 status
= sky2_read32(hw
, B0_Y2_SP_ISRC2
);
4074 if (status
& Y2_IS_IRQ_SW
) {
4075 hw
->flags
|= SKY2_HW_USE_MSI
;
4076 wake_up(&hw
->msi_wait
);
4077 sky2_write8(hw
, B0_CTST
, CS_CL_SW_IRQ
);
4079 sky2_write32(hw
, B0_Y2_SP_ICR
, 2);
4084 /* Test interrupt path by forcing a a software IRQ */
4085 static int __devinit
sky2_test_msi(struct sky2_hw
*hw
)
4087 struct pci_dev
*pdev
= hw
->pdev
;
4090 init_waitqueue_head (&hw
->msi_wait
);
4092 sky2_write32(hw
, B0_IMSK
, Y2_IS_IRQ_SW
);
4094 err
= request_irq(pdev
->irq
, sky2_test_intr
, 0, DRV_NAME
, hw
);
4096 dev_err(&pdev
->dev
, "cannot assign irq %d\n", pdev
->irq
);
4100 sky2_write8(hw
, B0_CTST
, CS_ST_SW_IRQ
);
4101 sky2_read8(hw
, B0_CTST
);
4103 wait_event_timeout(hw
->msi_wait
, (hw
->flags
& SKY2_HW_USE_MSI
), HZ
/10);
4105 if (!(hw
->flags
& SKY2_HW_USE_MSI
)) {
4106 /* MSI test failed, go back to INTx mode */
4107 dev_info(&pdev
->dev
, "No interrupt generated using MSI, "
4108 "switching to INTx mode.\n");
4111 sky2_write8(hw
, B0_CTST
, CS_CL_SW_IRQ
);
4114 sky2_write32(hw
, B0_IMSK
, 0);
4115 sky2_read32(hw
, B0_IMSK
);
4117 free_irq(pdev
->irq
, hw
);
4122 static int __devinit
pci_wake_enabled(struct pci_dev
*dev
)
4124 int pm
= pci_find_capability(dev
, PCI_CAP_ID_PM
);
4129 if (pci_read_config_word(dev
, pm
+ PCI_PM_CTRL
, &value
))
4131 return value
& PCI_PM_CTRL_PME_ENABLE
;
4134 static int __devinit
sky2_probe(struct pci_dev
*pdev
,
4135 const struct pci_device_id
*ent
)
4137 struct net_device
*dev
;
4139 int err
, using_dac
= 0, wol_default
;
4141 err
= pci_enable_device(pdev
);
4143 dev_err(&pdev
->dev
, "cannot enable PCI device\n");
4147 err
= pci_request_regions(pdev
, DRV_NAME
);
4149 dev_err(&pdev
->dev
, "cannot obtain PCI resources\n");
4150 goto err_out_disable
;
4153 pci_set_master(pdev
);
4155 if (sizeof(dma_addr_t
) > sizeof(u32
) &&
4156 !(err
= pci_set_dma_mask(pdev
, DMA_64BIT_MASK
))) {
4158 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
4160 dev_err(&pdev
->dev
, "unable to obtain 64 bit DMA "
4161 "for consistent allocations\n");
4162 goto err_out_free_regions
;
4165 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
4167 dev_err(&pdev
->dev
, "no usable DMA configuration\n");
4168 goto err_out_free_regions
;
4172 wol_default
= pci_wake_enabled(pdev
) ? WAKE_MAGIC
: 0;
4175 hw
= kzalloc(sizeof(*hw
), GFP_KERNEL
);
4177 dev_err(&pdev
->dev
, "cannot allocate hardware struct\n");
4178 goto err_out_free_regions
;
4183 hw
->regs
= ioremap_nocache(pci_resource_start(pdev
, 0), 0x4000);
4185 dev_err(&pdev
->dev
, "cannot map device registers\n");
4186 goto err_out_free_hw
;
4190 /* The sk98lin vendor driver uses hardware byte swapping but
4191 * this driver uses software swapping.
4195 reg
= sky2_pci_read32(hw
, PCI_DEV_REG2
);
4196 reg
&= ~PCI_REV_DESC
;
4197 sky2_pci_write32(hw
, PCI_DEV_REG2
, reg
);
4201 /* ring for status responses */
4202 hw
->st_le
= pci_alloc_consistent(pdev
, STATUS_LE_BYTES
, &hw
->st_dma
);
4204 goto err_out_iounmap
;
4206 err
= sky2_init(hw
);
4208 goto err_out_iounmap
;
4210 dev_info(&pdev
->dev
, "v%s addr 0x%llx irq %d Yukon-%s (0x%x) rev %d\n",
4211 DRV_VERSION
, (unsigned long long)pci_resource_start(pdev
, 0),
4212 pdev
->irq
, yukon2_name
[hw
->chip_id
- CHIP_ID_YUKON_XL
],
4213 hw
->chip_id
, hw
->chip_rev
);
4217 dev
= sky2_init_netdev(hw
, 0, using_dac
, wol_default
);
4220 goto err_out_free_pci
;
4223 if (!disable_msi
&& pci_enable_msi(pdev
) == 0) {
4224 err
= sky2_test_msi(hw
);
4225 if (err
== -EOPNOTSUPP
)
4226 pci_disable_msi(pdev
);
4228 goto err_out_free_netdev
;
4231 err
= register_netdev(dev
);
4233 dev_err(&pdev
->dev
, "cannot register net device\n");
4234 goto err_out_free_netdev
;
4237 netif_napi_add(dev
, &hw
->napi
, sky2_poll
, NAPI_WEIGHT
);
4239 err
= request_irq(pdev
->irq
, sky2_intr
,
4240 (hw
->flags
& SKY2_HW_USE_MSI
) ? 0 : IRQF_SHARED
,
4243 dev_err(&pdev
->dev
, "cannot assign irq %d\n", pdev
->irq
);
4244 goto err_out_unregister
;
4246 sky2_write32(hw
, B0_IMSK
, Y2_IS_BASE
);
4247 napi_enable(&hw
->napi
);
4249 sky2_show_addr(dev
);
4251 if (hw
->ports
> 1) {
4252 struct net_device
*dev1
;
4254 dev1
= sky2_init_netdev(hw
, 1, using_dac
, wol_default
);
4256 dev_warn(&pdev
->dev
, "allocation for second device failed\n");
4257 else if ((err
= register_netdev(dev1
))) {
4258 dev_warn(&pdev
->dev
,
4259 "register of second port failed (%d)\n", err
);
4263 sky2_show_addr(dev1
);
4266 setup_timer(&hw
->watchdog_timer
, sky2_watchdog
, (unsigned long) hw
);
4267 INIT_WORK(&hw
->restart_work
, sky2_restart
);
4269 pci_set_drvdata(pdev
, hw
);
4274 if (hw
->flags
& SKY2_HW_USE_MSI
)
4275 pci_disable_msi(pdev
);
4276 unregister_netdev(dev
);
4277 err_out_free_netdev
:
4280 sky2_write8(hw
, B0_CTST
, CS_RST_SET
);
4281 pci_free_consistent(pdev
, STATUS_LE_BYTES
, hw
->st_le
, hw
->st_dma
);
4286 err_out_free_regions
:
4287 pci_release_regions(pdev
);
4289 pci_disable_device(pdev
);
4291 pci_set_drvdata(pdev
, NULL
);
4295 static void __devexit
sky2_remove(struct pci_dev
*pdev
)
4297 struct sky2_hw
*hw
= pci_get_drvdata(pdev
);
4303 del_timer_sync(&hw
->watchdog_timer
);
4304 cancel_work_sync(&hw
->restart_work
);
4306 for (i
= hw
->ports
-1; i
>= 0; --i
)
4307 unregister_netdev(hw
->dev
[i
]);
4309 sky2_write32(hw
, B0_IMSK
, 0);
4313 sky2_write16(hw
, B0_Y2LED
, LED_STAT_OFF
);
4314 sky2_write8(hw
, B0_CTST
, CS_RST_SET
);
4315 sky2_read8(hw
, B0_CTST
);
4317 free_irq(pdev
->irq
, hw
);
4318 if (hw
->flags
& SKY2_HW_USE_MSI
)
4319 pci_disable_msi(pdev
);
4320 pci_free_consistent(pdev
, STATUS_LE_BYTES
, hw
->st_le
, hw
->st_dma
);
4321 pci_release_regions(pdev
);
4322 pci_disable_device(pdev
);
4324 for (i
= hw
->ports
-1; i
>= 0; --i
)
4325 free_netdev(hw
->dev
[i
]);
4330 pci_set_drvdata(pdev
, NULL
);
4334 static int sky2_suspend(struct pci_dev
*pdev
, pm_message_t state
)
4336 struct sky2_hw
*hw
= pci_get_drvdata(pdev
);
4342 del_timer_sync(&hw
->watchdog_timer
);
4343 cancel_work_sync(&hw
->restart_work
);
4345 for (i
= 0; i
< hw
->ports
; i
++) {
4346 struct net_device
*dev
= hw
->dev
[i
];
4347 struct sky2_port
*sky2
= netdev_priv(dev
);
4349 netif_device_detach(dev
);
4350 if (netif_running(dev
))
4354 sky2_wol_init(sky2
);
4359 sky2_write32(hw
, B0_IMSK
, 0);
4360 napi_disable(&hw
->napi
);
4363 pci_save_state(pdev
);
4364 pci_enable_wake(pdev
, pci_choose_state(pdev
, state
), wol
);
4365 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
4370 static int sky2_resume(struct pci_dev
*pdev
)
4372 struct sky2_hw
*hw
= pci_get_drvdata(pdev
);
4378 err
= pci_set_power_state(pdev
, PCI_D0
);
4382 err
= pci_restore_state(pdev
);
4386 pci_enable_wake(pdev
, PCI_D0
, 0);
4388 /* Re-enable all clocks */
4389 if (hw
->chip_id
== CHIP_ID_YUKON_EX
||
4390 hw
->chip_id
== CHIP_ID_YUKON_EC_U
||
4391 hw
->chip_id
== CHIP_ID_YUKON_FE_P
)
4392 sky2_pci_write32(hw
, PCI_DEV_REG3
, 0);
4395 sky2_write32(hw
, B0_IMSK
, Y2_IS_BASE
);
4396 napi_enable(&hw
->napi
);
4398 for (i
= 0; i
< hw
->ports
; i
++) {
4399 struct net_device
*dev
= hw
->dev
[i
];
4401 netif_device_attach(dev
);
4402 if (netif_running(dev
)) {
4405 printk(KERN_ERR PFX
"%s: could not up: %d\n",
4415 dev_err(&pdev
->dev
, "resume failed (%d)\n", err
);
4416 pci_disable_device(pdev
);
4421 static void sky2_shutdown(struct pci_dev
*pdev
)
4423 struct sky2_hw
*hw
= pci_get_drvdata(pdev
);
4429 del_timer_sync(&hw
->watchdog_timer
);
4431 for (i
= 0; i
< hw
->ports
; i
++) {
4432 struct net_device
*dev
= hw
->dev
[i
];
4433 struct sky2_port
*sky2
= netdev_priv(dev
);
4437 sky2_wol_init(sky2
);
4444 pci_enable_wake(pdev
, PCI_D3hot
, wol
);
4445 pci_enable_wake(pdev
, PCI_D3cold
, wol
);
4447 pci_disable_device(pdev
);
4448 pci_set_power_state(pdev
, PCI_D3hot
);
4452 static struct pci_driver sky2_driver
= {
4454 .id_table
= sky2_id_table
,
4455 .probe
= sky2_probe
,
4456 .remove
= __devexit_p(sky2_remove
),
4458 .suspend
= sky2_suspend
,
4459 .resume
= sky2_resume
,
4461 .shutdown
= sky2_shutdown
,
4464 static int __init
sky2_init_module(void)
4467 return pci_register_driver(&sky2_driver
);
4470 static void __exit
sky2_cleanup_module(void)
4472 pci_unregister_driver(&sky2_driver
);
4473 sky2_debug_cleanup();
4476 module_init(sky2_init_module
);
4477 module_exit(sky2_cleanup_module
);
4479 MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver");
4480 MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
4481 MODULE_LICENSE("GPL");
4482 MODULE_VERSION(DRV_VERSION
);