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sky2: status ring race fix
[mirror_ubuntu-bionic-kernel.git] / drivers / net / sky2.c
CommitLineData
cd28ab6a
SH		 1/*
2 * New driver for Marvell Yukon 2 chipset.
3 * Based on earlier sk98lin, and skge driver.
4 *
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.
8 *
9 * Copyright (C) 2005 Stephen Hemminger <shemminger@osdl.org>
10 *
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
798b6b19 13 * the Free Software Foundation; either version 2 of the License.
cd28ab6a
SH		 14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
793b883e 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
cd28ab6a
SH		 18 * GNU General Public License for more details.
19 *
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.
23 */
24
793b883e 25#include <linux/crc32.h>
cd28ab6a
SH		 26#include <linux/kernel.h>
27#include <linux/version.h>
28#include <linux/module.h>
29#include <linux/netdevice.h>
d0bbccfa 30#include <linux/dma-mapping.h>
cd28ab6a
SH		 31#include <linux/etherdevice.h>
32#include <linux/ethtool.h>
33#include <linux/pci.h>
555382cb 34#include <linux/aer.h>
cd28ab6a 35#include <linux/ip.h>
c9bdd4b5 36#include <net/ip.h>
cd28ab6a
SH		 37#include <linux/tcp.h>
38#include <linux/in.h>
39#include <linux/delay.h>
91c86df5 40#include <linux/workqueue.h>
d1f13708 41#include <linux/if_vlan.h>
d70cd51a 42#include <linux/prefetch.h>
3cf26753 43#include <linux/debugfs.h>
ef743d33 44#include <linux/mii.h>
cd28ab6a
SH		 45
46#include <asm/irq.h>
47
d1f13708
SH		 48#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
49#define SKY2_VLAN_TAG_USED 1
50#endif
51
cd28ab6a
SH		 52#include "sky2.h"
53
54#define DRV_NAME "sky2"
a7b850ea 55#define DRV_VERSION "1.19"
cd28ab6a
SH		 56#define PFX DRV_NAME " "
57
58/*
59 * The Yukon II chipset takes 64 bit command blocks (called list elements)
60 * that are organized into three (receive, transmit, status) different rings
14d0263f 61 * similar to Tigon3.
cd28ab6a
SH		 62 */
63
14d0263f 64#define RX_LE_SIZE 1024
cd28ab6a 65#define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le))
14d0263f 66#define RX_MAX_PENDING (RX_LE_SIZE/6 - 2)
13210ce5 67#define RX_DEF_PENDING RX_MAX_PENDING
82788c7a 68#define RX_SKB_ALIGN 8
793b883e
SH		 69
70#define TX_RING_SIZE 512
71#define TX_DEF_PENDING (TX_RING_SIZE - 1)
72#define TX_MIN_PENDING 64
b19666d9 73#define MAX_SKB_TX_LE (4 + (sizeof(dma_addr_t)/sizeof(u32))*MAX_SKB_FRAGS)
cd28ab6a 74
793b883e 75#define STATUS_RING_SIZE 2048 /* 2 ports * (TX + 2*RX) */
cd28ab6a 76#define STATUS_LE_BYTES (STATUS_RING_SIZE*sizeof(struct sky2_status_le))
cd28ab6a
SH		 77#define TX_WATCHDOG (5 * HZ)
78#define NAPI_WEIGHT 64
79#define PHY_RETRIES 1000
80
f4331a6d
SH		 81#define SKY2_EEPROM_MAGIC 0x9955aabb
82
83
cb5d9547
SH		 84#define RING_NEXT(x,s) (((x)+1) & ((s)-1))
85
cd28ab6a 86static const u32 default_msg =
793b883e
SH		 87 NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
88 | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
3be92a70 89 | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
cd28ab6a 90
793b883e 91static int debug = -1; /* defaults above */
cd28ab6a
SH		 92module_param(debug, int, 0);
93MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
94
14d0263f 95static int copybreak __read_mostly = 128;
bdb5c58e
SH		 96module_param(copybreak, int, 0);
97MODULE_PARM_DESC(copybreak, "Receive copy threshold");
98
fb2690a9
SH		 99static int disable_msi = 0;
100module_param(disable_msi, int, 0);
101MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
102
cd28ab6a 103static const struct pci_device_id sky2_id_table[] = {
e5b74c7d
SH		 104 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, /* SK-9Sxx */
105 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */
2d2a3871 106 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) }, /* DGE-560T */
2f4a66ad 107 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4001) }, /* DGE-550SX */
508f89e7 108 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B02) }, /* DGE-560SX */
f1a0b6f5 109 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B03) }, /* DGE-550T */
e5b74c7d
SH		 110 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4340) }, /* 88E8021 */
111 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4341) }, /* 88E8022 */
112 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4342) }, /* 88E8061 */
113 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4343) }, /* 88E8062 */
114 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4344) }, /* 88E8021 */
115 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4345) }, /* 88E8022 */
116 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4346) }, /* 88E8061 */
117 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4347) }, /* 88E8062 */
118 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4350) }, /* 88E8035 */
119 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) }, /* 88E8036 */
120 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) }, /* 88E8038 */
121 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4353) }, /* 88E8039 */
05745c4a 122 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4354) }, /* 88E8040 */
e5b74c7d 123 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4356) }, /* 88EC033 */
05745c4a 124 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x435A) }, /* 88E8048 */
e5b74c7d
SH		 125 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) }, /* 88E8052 */
126 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) }, /* 88E8050 */
127 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) }, /* 88E8053 */
128 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) }, /* 88E8055 */
129 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4364) }, /* 88E8056 */
05745c4a 130 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4365) }, /* 88E8070 */
e5b74c7d
SH		 131 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4366) }, /* 88EC036 */
132 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4367) }, /* 88EC032 */
133 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) }, /* 88EC034 */
f1a0b6f5
SH		 134 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4369) }, /* 88EC042 */
135 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436A) }, /* 88E8058 */
69161611 136 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436B) }, /* 88E8071 */
cd28ab6a
SH		 137 { 0 }
138};
793b883e 139
cd28ab6a
SH		 140MODULE_DEVICE_TABLE(pci, sky2_id_table);
141
142/* Avoid conditionals by using array */
143static const unsigned txqaddr[] = { Q_XA1, Q_XA2 };
144static const unsigned rxqaddr[] = { Q_R1, Q_R2 };
f4ea431b 145static const u32 portirq_msk[] = { Y2_IS_PORT_1, Y2_IS_PORT_2 };
cd28ab6a 146
92f965e8
SH		 147/* This driver supports yukon2 chipset only */
148static const char *yukon2_name[] = {
149 "XL", /* 0xb3 */
150 "EC Ultra", /* 0xb4 */
93745494 151 "Extreme", /* 0xb5 */
92f965e8
SH		 152 "EC", /* 0xb6 */
153 "FE", /* 0xb7 */
05745c4a 154 "FE+", /* 0xb8 */
793b883e
SH		 155};
156
d1b139c0
SH		 157static void sky2_set_multicast(struct net_device *dev);
158
793b883e 159/* Access to external PHY */
ef743d33 160static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val)
cd28ab6a
SH		 161{
162 int i;
163
164 gma_write16(hw, port, GM_SMI_DATA, val);
165 gma_write16(hw, port, GM_SMI_CTRL,
166 GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) | GM_SMI_CT_REG_AD(reg));
167
168 for (i = 0; i < PHY_RETRIES; i++) {
cd28ab6a 169 if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
ef743d33 170 return 0;
793b883e 171 udelay(1);
cd28ab6a 172 }
ef743d33 173
793b883e 174 printk(KERN_WARNING PFX "%s: phy write timeout\n", hw->dev[port]->name);
ef743d33 175 return -ETIMEDOUT;
cd28ab6a
SH		 176}
177
ef743d33 178static int __gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg, u16 *val)
cd28ab6a
SH		 179{
180 int i;
181
793b883e 182 gma_write16(hw, port, GM_SMI_CTRL, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV)
cd28ab6a
SH		 183 | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
184
185 for (i = 0; i < PHY_RETRIES; i++) {
ef743d33
SH		 186 if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) {
187 *val = gma_read16(hw, port, GM_SMI_DATA);
188 return 0;
189 }
190
793b883e 191 udelay(1);
cd28ab6a
SH		 192 }
193
ef743d33
SH		 194 return -ETIMEDOUT;
195}
196
197static u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg)
198{
199 u16 v;
200
201 if (__gm_phy_read(hw, port, reg, &v) != 0)
202 printk(KERN_WARNING PFX "%s: phy read timeout\n", hw->dev[port]->name);
203 return v;
cd28ab6a
SH		 204}
205
5afa0a9c 206
ae306cca
SH		 207static void sky2_power_on(struct sky2_hw *hw)
208{
209 /* switch power to VCC (WA for VAUX problem) */
210 sky2_write8(hw, B0_POWER_CTRL,
211 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
5afa0a9c 212
ae306cca
SH		 213 /* disable Core Clock Division, */
214 sky2_write32(hw, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS);
d3bcfbeb 215
ae306cca
SH		 216 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
217 /* enable bits are inverted */
218 sky2_write8(hw, B2_Y2_CLK_GATE,
219 Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
220 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
221 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
222 else
223 sky2_write8(hw, B2_Y2_CLK_GATE, 0);
977bdf06 224
ea76e635 225 if (hw->flags & SKY2_HW_ADV_POWER_CTL) {
167f53d0 226 struct pci_dev *pdev = hw->pdev;
fc99fe06 227 u32 reg;
5afa0a9c 228
167f53d0 229 pci_write_config_dword(pdev, PCI_DEV_REG3, 0);
b2345773 230
167f53d0 231 pci_read_config_dword(pdev, PCI_DEV_REG4, &reg);
fc99fe06
SH		 232 /* set all bits to 0 except bits 15..12 and 8 */
233 reg &= P_ASPM_CONTROL_MSK;
167f53d0 234 pci_write_config_dword(pdev, PCI_DEV_REG4, reg);
fc99fe06 235
167f53d0 236 pci_read_config_dword(pdev, PCI_DEV_REG5, &reg);
fc99fe06
SH		 237 /* set all bits to 0 except bits 28 & 27 */
238 reg &= P_CTL_TIM_VMAIN_AV_MSK;
167f53d0 239 pci_write_config_dword(pdev, PCI_DEV_REG5, reg);
fc99fe06 240
167f53d0 241 pci_write_config_dword(pdev, PCI_CFG_REG_1, 0);
8f70920f
SH		 242
243 /* Enable workaround for dev 4.107 on Yukon-Ultra & Extreme */
244 reg = sky2_read32(hw, B2_GP_IO);
245 reg |= GLB_GPIO_STAT_RACE_DIS;
246 sky2_write32(hw, B2_GP_IO, reg);
b2345773
SH		 247
248 sky2_read32(hw, B2_GP_IO);
5afa0a9c 249 }
ae306cca 250}
5afa0a9c 251
ae306cca
SH		 252static void sky2_power_aux(struct sky2_hw *hw)
253{
254 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
255 sky2_write8(hw, B2_Y2_CLK_GATE, 0);
256 else
257 /* enable bits are inverted */
258 sky2_write8(hw, B2_Y2_CLK_GATE,
259 Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
260 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
261 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
262
263 /* switch power to VAUX */
264 if (sky2_read16(hw, B0_CTST) & Y2_VAUX_AVAIL)
265 sky2_write8(hw, B0_POWER_CTRL,
266 (PC_VAUX_ENA | PC_VCC_ENA |
267 PC_VAUX_ON | PC_VCC_OFF));
5afa0a9c
SH		 268}
269
d3bcfbeb 270static void sky2_gmac_reset(struct sky2_hw *hw, unsigned port)
cd28ab6a
SH		 271{
272 u16 reg;
273
274 /* disable all GMAC IRQ's */
275 sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
276 /* disable PHY IRQs */
277 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
793b883e 278
cd28ab6a
SH		 279 gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
280 gma_write16(hw, port, GM_MC_ADDR_H2, 0);
281 gma_write16(hw, port, GM_MC_ADDR_H3, 0);
282 gma_write16(hw, port, GM_MC_ADDR_H4, 0);
283
284 reg = gma_read16(hw, port, GM_RX_CTRL);
285 reg |= GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA;
286 gma_write16(hw, port, GM_RX_CTRL, reg);
287}
288
16ad91e1
SH		 289/* flow control to advertise bits */
290static const u16 copper_fc_adv[] = {
291 [FC_NONE] = 0,
292 [FC_TX] = PHY_M_AN_ASP,
293 [FC_RX] = PHY_M_AN_PC,
294 [FC_BOTH] = PHY_M_AN_PC | PHY_M_AN_ASP,
295};
296
297/* flow control to advertise bits when using 1000BaseX */
298static const u16 fiber_fc_adv[] = {
df3fe1f3 299 [FC_NONE] = PHY_M_P_NO_PAUSE_X,
16ad91e1
SH		 300 [FC_TX] = PHY_M_P_ASYM_MD_X,
301 [FC_RX] = PHY_M_P_SYM_MD_X,
df3fe1f3 302 [FC_BOTH] = PHY_M_P_BOTH_MD_X,
16ad91e1
SH		 303};
304
305/* flow control to GMA disable bits */
306static const u16 gm_fc_disable[] = {
307 [FC_NONE] = GM_GPCR_FC_RX_DIS | GM_GPCR_FC_TX_DIS,
308 [FC_TX] = GM_GPCR_FC_RX_DIS,
309 [FC_RX] = GM_GPCR_FC_TX_DIS,
310 [FC_BOTH] = 0,
311};
312
313
cd28ab6a
SH		 314static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
315{
316 struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
2eaba1a2 317 u16 ctrl, ct1000, adv, pg, ledctrl, ledover, reg;
cd28ab6a 318
ea76e635
SH		 319 if (sky2->autoneg == AUTONEG_ENABLE &&
320 !(hw->flags & SKY2_HW_NEWER_PHY)) {
cd28ab6a
SH		 321 u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
322
323 ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
793b883e 324 PHY_M_EC_MAC_S_MSK);
cd28ab6a
SH		 325 ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
326
53419c68 327 /* on PHY 88E1040 Rev.D0 (and newer) downshift control changed */
cd28ab6a 328 if (hw->chip_id == CHIP_ID_YUKON_EC)
53419c68 329 /* set downshift counter to 3x and enable downshift */
cd28ab6a
SH		 330 ectrl |= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA;
331 else
53419c68
SH		 332 /* set master & slave downshift counter to 1x */
333 ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
cd28ab6a
SH		 334
335 gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
336 }
337
338 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
b89165f2 339 if (sky2_is_copper(hw)) {
05745c4a 340 if (!(hw->flags & SKY2_HW_GIGABIT)) {
cd28ab6a
SH		 341 /* enable automatic crossover */
342 ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1;
6d3105d5
SH		 343
344 if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
345 hw->chip_rev == CHIP_REV_YU_FE2_A0) {
346 u16 spec;
347
348 /* Enable Class A driver for FE+ A0 */
349 spec = gm_phy_read(hw, port, PHY_MARV_FE_SPEC_2);
350 spec |= PHY_M_FESC_SEL_CL_A;
351 gm_phy_write(hw, port, PHY_MARV_FE_SPEC_2, spec);
352 }
cd28ab6a
SH		 353 } else {
354 /* disable energy detect */
355 ctrl &= ~PHY_M_PC_EN_DET_MSK;
356
357 /* enable automatic crossover */
358 ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO);
359
53419c68 360 /* downshift on PHY 88E1112 and 88E1149 is changed */
93745494 361 if (sky2->autoneg == AUTONEG_ENABLE
ea76e635 362 && (hw->flags & SKY2_HW_NEWER_PHY)) {
53419c68 363 /* set downshift counter to 3x and enable downshift */
cd28ab6a
SH		 364 ctrl &= ~PHY_M_PC_DSC_MSK;
365 ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA;
366 }
367 }
cd28ab6a
SH		 368 } else {
369 /* workaround for deviation #4.88 (CRC errors) */
370 /* disable Automatic Crossover */
371
372 ctrl &= ~PHY_M_PC_MDIX_MSK;
b89165f2 373 }
cd28ab6a 374
b89165f2
SH		 375 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
376
377 /* special setup for PHY 88E1112 Fiber */
ea76e635 378 if (hw->chip_id == CHIP_ID_YUKON_XL && (hw->flags & SKY2_HW_FIBRE_PHY)) {
b89165f2 379 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
cd28ab6a 380
b89165f2
SH		 381 /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */
382 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
383 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
384 ctrl &= ~PHY_M_MAC_MD_MSK;
385 ctrl |= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX);
386 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
387
388 if (hw->pmd_type == 'P') {
cd28ab6a
SH		 389 /* select page 1 to access Fiber registers */
390 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 1);
b89165f2
SH		 391
392 /* for SFP-module set SIGDET polarity to low */
393 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
394 ctrl |= PHY_M_FIB_SIGD_POL;
34dd962b 395 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
cd28ab6a 396 }
b89165f2
SH		 397
398 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
cd28ab6a
SH		 399 }
400
7800fddc 401 ctrl = PHY_CT_RESET;
cd28ab6a
SH		 402 ct1000 = 0;
403 adv = PHY_AN_CSMA;
2eaba1a2 404 reg = 0;
cd28ab6a
SH		 405
406 if (sky2->autoneg == AUTONEG_ENABLE) {
b89165f2 407 if (sky2_is_copper(hw)) {
cd28ab6a
SH		 408 if (sky2->advertising & ADVERTISED_1000baseT_Full)
409 ct1000 |= PHY_M_1000C_AFD;
410 if (sky2->advertising & ADVERTISED_1000baseT_Half)
411 ct1000 |= PHY_M_1000C_AHD;
412 if (sky2->advertising & ADVERTISED_100baseT_Full)
413 adv |= PHY_M_AN_100_FD;
414 if (sky2->advertising & ADVERTISED_100baseT_Half)
415 adv |= PHY_M_AN_100_HD;
416 if (sky2->advertising & ADVERTISED_10baseT_Full)
417 adv |= PHY_M_AN_10_FD;
418 if (sky2->advertising & ADVERTISED_10baseT_Half)
419 adv |= PHY_M_AN_10_HD;
709c6e7b 420
16ad91e1 421 adv |= copper_fc_adv[sky2->flow_mode];
b89165f2
SH		 422 } else { /* special defines for FIBER (88E1040S only) */
423 if (sky2->advertising & ADVERTISED_1000baseT_Full)
424 adv |= PHY_M_AN_1000X_AFD;
425 if (sky2->advertising & ADVERTISED_1000baseT_Half)
426 adv |= PHY_M_AN_1000X_AHD;
cd28ab6a 427
16ad91e1 428 adv |= fiber_fc_adv[sky2->flow_mode];
709c6e7b 429 }
cd28ab6a
SH		 430
431 /* Restart Auto-negotiation */
432 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
433 } else {
434 /* forced speed/duplex settings */
435 ct1000 = PHY_M_1000C_MSE;
436
2eaba1a2
SH		 437 /* Disable auto update for duplex flow control and speed */
438 reg |= GM_GPCR_AU_ALL_DIS;
cd28ab6a
SH		 439
440 switch (sky2->speed) {
441 case SPEED_1000:
442 ctrl |= PHY_CT_SP1000;
2eaba1a2 443 reg |= GM_GPCR_SPEED_1000;
cd28ab6a
SH		 444 break;
445 case SPEED_100:
446 ctrl |= PHY_CT_SP100;
2eaba1a2 447 reg |= GM_GPCR_SPEED_100;
cd28ab6a
SH		 448 break;
449 }
450
2eaba1a2
SH		 451 if (sky2->duplex == DUPLEX_FULL) {
452 reg |= GM_GPCR_DUP_FULL;
453 ctrl |= PHY_CT_DUP_MD;
16ad91e1
SH		 454 } else if (sky2->speed < SPEED_1000)
455 sky2->flow_mode = FC_NONE;
2eaba1a2 456
2eaba1a2 457
16ad91e1 458 reg |= gm_fc_disable[sky2->flow_mode];
2eaba1a2
SH		 459
460 /* Forward pause packets to GMAC? */
16ad91e1 461 if (sky2->flow_mode & FC_RX)
2eaba1a2
SH		 462 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
463 else
464 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
cd28ab6a
SH		 465 }
466
2eaba1a2
SH		 467 gma_write16(hw, port, GM_GP_CTRL, reg);
468
05745c4a 469 if (hw->flags & SKY2_HW_GIGABIT)
cd28ab6a
SH		 470 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
471
472 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
473 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
474
475 /* Setup Phy LED's */
476 ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS);
477 ledover = 0;
478
479 switch (hw->chip_id) {
480 case CHIP_ID_YUKON_FE:
481 /* on 88E3082 these bits are at 11..9 (shifted left) */
482 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1;
483
484 ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR);
485
486 /* delete ACT LED control bits */
487 ctrl &= ~PHY_M_FELP_LED1_MSK;
488 /* change ACT LED control to blink mode */
489 ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL);
490 gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
491 break;
492
05745c4a
SH		 493 case CHIP_ID_YUKON_FE_P:
494 /* Enable Link Partner Next Page */
495 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
496 ctrl |= PHY_M_PC_ENA_LIP_NP;
497
498 /* disable Energy Detect and enable scrambler */
499 ctrl &= ~(PHY_M_PC_ENA_ENE_DT | PHY_M_PC_DIS_SCRAMB);
500 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
501
502 /* set LED2 -> ACT, LED1 -> LINK, LED0 -> SPEED */
503 ctrl = PHY_M_FELP_LED2_CTRL(LED_PAR_CTRL_ACT_BL) |
504 PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_LINK) |
505 PHY_M_FELP_LED0_CTRL(LED_PAR_CTRL_SPEED);
506
507 gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
508 break;
509
cd28ab6a 510 case CHIP_ID_YUKON_XL:
793b883e 511 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
cd28ab6a
SH		 512
513 /* select page 3 to access LED control register */
514 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
515
516 /* set LED Function Control register */
ed6d32c7
SH		 517 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
518 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
519 PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */
520 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
521 PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */
cd28ab6a
SH		 522
523 /* set Polarity Control register */
524 gm_phy_write(hw, port, PHY_MARV_PHY_STAT,
793b883e
SH		 525 (PHY_M_POLC_LS1_P_MIX(4) |
526 PHY_M_POLC_IS0_P_MIX(4) |
527 PHY_M_POLC_LOS_CTRL(2) |
528 PHY_M_POLC_INIT_CTRL(2) |
529 PHY_M_POLC_STA1_CTRL(2) |
530 PHY_M_POLC_STA0_CTRL(2)));
cd28ab6a
SH		 531
532 /* restore page register */
793b883e 533 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
cd28ab6a 534 break;
93745494 535
ed6d32c7 536 case CHIP_ID_YUKON_EC_U:
93745494 537 case CHIP_ID_YUKON_EX:
ed6d32c7
SH		 538 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
539
540 /* select page 3 to access LED control register */
541 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
542
543 /* set LED Function Control register */
544 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
545 (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
546 PHY_M_LEDC_INIT_CTRL(8) | /* 10 Mbps */
547 PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
548 PHY_M_LEDC_STA0_CTRL(7)));/* 1000 Mbps */
549
550 /* set Blink Rate in LED Timer Control Register */
551 gm_phy_write(hw, port, PHY_MARV_INT_MASK,
552 ledctrl | PHY_M_LED_BLINK_RT(BLINK_84MS));
553 /* restore page register */
554 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
555 break;
cd28ab6a
SH		 556
557 default:
558 /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
559 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
560 /* turn off the Rx LED (LED_RX) */
0efdf262 561 ledover &= ~PHY_M_LED_MO_RX;
cd28ab6a
SH		 562 }
563
9467a8fc
SH		 564 if (hw->chip_id == CHIP_ID_YUKON_EC_U &&
565 hw->chip_rev == CHIP_REV_YU_EC_U_A1) {
977bdf06 566 /* apply fixes in PHY AFE */
ed6d32c7
SH		 567 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 255);
568
977bdf06 569 /* increase differential signal amplitude in 10BASE-T */
ed6d32c7
SH		 570 gm_phy_write(hw, port, 0x18, 0xaa99);
571 gm_phy_write(hw, port, 0x17, 0x2011);
cd28ab6a 572
977bdf06 573 /* fix for IEEE A/B Symmetry failure in 1000BASE-T */
ed6d32c7
SH		 574 gm_phy_write(hw, port, 0x18, 0xa204);
575 gm_phy_write(hw, port, 0x17, 0x2002);
977bdf06
SH		 576
577 /* set page register to 0 */
9467a8fc 578 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
05745c4a
SH		 579 } else if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
580 hw->chip_rev == CHIP_REV_YU_FE2_A0) {
581 /* apply workaround for integrated resistors calibration */
582 gm_phy_write(hw, port, PHY_MARV_PAGE_ADDR, 17);
583 gm_phy_write(hw, port, PHY_MARV_PAGE_DATA, 0x3f60);
93745494 584 } else if (hw->chip_id != CHIP_ID_YUKON_EX) {
05745c4a 585 /* no effect on Yukon-XL */
977bdf06 586 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
cd28ab6a 587
977bdf06
SH		 588 if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) {
589 /* turn on 100 Mbps LED (LED_LINK100) */
0efdf262 590 ledover |= PHY_M_LED_MO_100;
977bdf06 591 }
cd28ab6a 592
977bdf06
SH		 593 if (ledover)
594 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
595
596 }
2eaba1a2 597
d571b694 598 /* Enable phy interrupt on auto-negotiation complete (or link up) */
cd28ab6a
SH		 599 if (sky2->autoneg == AUTONEG_ENABLE)
600 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL);
601 else
602 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
603}
604
d3bcfbeb
SH		 605static void sky2_phy_power(struct sky2_hw *hw, unsigned port, int onoff)
606{
167f53d0 607 struct pci_dev *pdev = hw->pdev;
d3bcfbeb 608 u32 reg1;
ff35164e
SH		 609 static const u32 phy_power[] = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD };
610 static const u32 coma_mode[] = { PCI_Y2_PHY1_COMA, PCI_Y2_PHY2_COMA };
d3bcfbeb 611
167f53d0 612 pci_read_config_dword(pdev, PCI_DEV_REG1, &reg1);
ff35164e 613 /* Turn on/off phy power saving */
d3bcfbeb 614 if (onoff)
d3bcfbeb
SH		 615 reg1 &= ~phy_power[port];
616 else
617 reg1 |= phy_power[port];
618
ff35164e
SH		 619 if (onoff && hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
620 reg1 |= coma_mode[port];
621
167f53d0
SH		 622 pci_write_config_dword(pdev, PCI_DEV_REG1, reg1);
623 pci_read_config_dword(pdev, PCI_DEV_REG1, &reg1);
624
d3bcfbeb
SH		 625 udelay(100);
626}
627
1b537565
SH		 628/* Force a renegotiation */
629static void sky2_phy_reinit(struct sky2_port *sky2)
630{
e07b1aa8 631 spin_lock_bh(&sky2->phy_lock);
1b537565 632 sky2_phy_init(sky2->hw, sky2->port);
e07b1aa8 633 spin_unlock_bh(&sky2->phy_lock);
1b537565
SH		 634}
635
e3173832
SH		 636/* Put device in state to listen for Wake On Lan */
637static void sky2_wol_init(struct sky2_port *sky2)
638{
639 struct sky2_hw *hw = sky2->hw;
640 unsigned port = sky2->port;
641 enum flow_control save_mode;
642 u16 ctrl;
643 u32 reg1;
644
645 /* Bring hardware out of reset */
646 sky2_write16(hw, B0_CTST, CS_RST_CLR);
647 sky2_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR);
648
649 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
650 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
651
652 /* Force to 10/100
653 * sky2_reset will re-enable on resume
654 */
655 save_mode = sky2->flow_mode;
656 ctrl = sky2->advertising;
657
658 sky2->advertising &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full);
659 sky2->flow_mode = FC_NONE;
660 sky2_phy_power(hw, port, 1);
661 sky2_phy_reinit(sky2);
662
663 sky2->flow_mode = save_mode;
664 sky2->advertising = ctrl;
665
666 /* Set GMAC to no flow control and auto update for speed/duplex */
667 gma_write16(hw, port, GM_GP_CTRL,
668 GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA|
669 GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS);
670
671 /* Set WOL address */
672 memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR),
673 sky2->netdev->dev_addr, ETH_ALEN);
674
675 /* Turn on appropriate WOL control bits */
676 sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT);
677 ctrl = 0;
678 if (sky2->wol & WAKE_PHY)
679 ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT;
680 else
681 ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT;
682
683 if (sky2->wol & WAKE_MAGIC)
684 ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT;
685 else
686 ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;;
687
688 ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT;
689 sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl);
690
691 /* Turn on legacy PCI-Express PME mode */
167f53d0 692 pci_read_config_dword(hw->pdev, PCI_DEV_REG1, &reg1);
e3173832 693 reg1 |= PCI_Y2_PME_LEGACY;
167f53d0 694 pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg1);
e3173832
SH		 695
696 /* block receiver */
697 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
698
699}
700
69161611
SH		 701static void sky2_set_tx_stfwd(struct sky2_hw *hw, unsigned port)
702{
05745c4a
SH		 703 struct net_device *dev = hw->dev[port];
704
705 if (dev->mtu <= ETH_DATA_LEN)
69161611 706 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
05745c4a
SH		 707 TX_JUMBO_DIS | TX_STFW_ENA);
708
709 else if (hw->chip_id != CHIP_ID_YUKON_EC_U)
710 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
711 TX_STFW_ENA | TX_JUMBO_ENA);
712 else {
713 /* set Tx GMAC FIFO Almost Empty Threshold */
714 sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
715 (ECU_JUMBO_WM << 16) | ECU_AE_THR);
69161611 716
05745c4a
SH		 717 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
718 TX_JUMBO_ENA | TX_STFW_DIS);
69161611 719
05745c4a
SH		 720 /* Can't do offload because of lack of store/forward */
721 dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | NETIF_F_ALL_CSUM);
69161611
SH		 722 }
723}
724
cd28ab6a
SH		 725static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
726{
727 struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
728 u16 reg;
25cccecc 729 u32 rx_reg;
cd28ab6a
SH		 730 int i;
731 const u8 *addr = hw->dev[port]->dev_addr;
732
f350339c
SH		 733 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
734 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
cd28ab6a
SH		 735
736 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
737
793b883e 738 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 && port == 1) {
cd28ab6a
SH		 739 /* WA DEV_472 -- looks like crossed wires on port 2 */
740 /* clear GMAC 1 Control reset */
741 sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR);
742 do {
743 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET);
744 sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR);
745 } while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL ||
746 gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 ||
747 gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0);
748 }
749
793b883e 750 sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
cd28ab6a 751
2eaba1a2
SH		 752 /* Enable Transmit FIFO Underrun */
753 sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
754
e07b1aa8 755 spin_lock_bh(&sky2->phy_lock);
cd28ab6a 756 sky2_phy_init(hw, port);
e07b1aa8 757 spin_unlock_bh(&sky2->phy_lock);
cd28ab6a
SH		 758
759 /* MIB clear */
760 reg = gma_read16(hw, port, GM_PHY_ADDR);
761 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
762
43f2f104
SH		 763 for (i = GM_MIB_CNT_BASE; i <= GM_MIB_CNT_END; i += 4)
764 gma_read16(hw, port, i);
cd28ab6a
SH		 765 gma_write16(hw, port, GM_PHY_ADDR, reg);
766
767 /* transmit control */
768 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
769
770 /* receive control reg: unicast + multicast + no FCS */
771 gma_write16(hw, port, GM_RX_CTRL,
793b883e 772 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
cd28ab6a
SH		 773
774 /* transmit flow control */
775 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
776
777 /* transmit parameter */
778 gma_write16(hw, port, GM_TX_PARAM,
779 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
780 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
781 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) |
782 TX_BACK_OFF_LIM(TX_BOF_LIM_DEF));
783
784 /* serial mode register */
785 reg = DATA_BLIND_VAL(DATA_BLIND_DEF) |
6b1a3aef 786 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
cd28ab6a 787
6b1a3aef 788 if (hw->dev[port]->mtu > ETH_DATA_LEN)
cd28ab6a
SH		 789 reg |= GM_SMOD_JUMBO_ENA;
790
791 gma_write16(hw, port, GM_SERIAL_MODE, reg);
792
cd28ab6a
SH		 793 /* virtual address for data */
794 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
795
793b883e
SH		 796 /* physical address: used for pause frames */
797 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
798
799 /* ignore counter overflows */
cd28ab6a
SH		 800 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
801 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
802 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
803
804 /* Configure Rx MAC FIFO */
805 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
25cccecc 806 rx_reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
05745c4a
SH		 807 if (hw->chip_id == CHIP_ID_YUKON_EX ||
808 hw->chip_id == CHIP_ID_YUKON_FE_P)
25cccecc 809 rx_reg |= GMF_RX_OVER_ON;
69161611 810
25cccecc 811 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), rx_reg);
cd28ab6a 812
d571b694 813 /* Flush Rx MAC FIFO on any flow control or error */
42eeea01 814 sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);
cd28ab6a 815
8df9a876 816 /* Set threshold to 0xa (64 bytes) + 1 to workaround pause bug */
05745c4a
SH		 817 reg = RX_GMF_FL_THR_DEF + 1;
818 /* Another magic mystery workaround from sk98lin */
819 if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
820 hw->chip_rev == CHIP_REV_YU_FE2_A0)
821 reg = 0x178;
822 sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), reg);
cd28ab6a
SH		 823
824 /* Configure Tx MAC FIFO */
825 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
826 sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
5a5b1ea0 827
e0c28116
SH		 828 /* On chips without ram buffer, pause is controled by MAC level */
829 if (sky2_read8(hw, B2_E_0) == 0) {
8df9a876 830 sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8);
5a5b1ea0 831 sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8);
b628ed98 832
69161611 833 sky2_set_tx_stfwd(hw, port);
5a5b1ea0
SH		 834 }
835
cd28ab6a
SH		 836}
837
67712901
SH		 838/* Assign Ram Buffer allocation to queue */
839static void sky2_ramset(struct sky2_hw *hw, u16 q, u32 start, u32 space)
cd28ab6a 840{
67712901
SH		 841 u32 end;
842
843 /* convert from K bytes to qwords used for hw register */
844 start *= 1024/8;
845 space *= 1024/8;
846 end = start + space - 1;
793b883e 847
cd28ab6a
SH		 848 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
849 sky2_write32(hw, RB_ADDR(q, RB_START), start);
850 sky2_write32(hw, RB_ADDR(q, RB_END), end);
851 sky2_write32(hw, RB_ADDR(q, RB_WP), start);
852 sky2_write32(hw, RB_ADDR(q, RB_RP), start);
853
854 if (q == Q_R1 || q == Q_R2) {
1c28f6ba 855 u32 tp = space - space/4;
793b883e 856
1c28f6ba
SH		 857 /* On receive queue's set the thresholds
858 * give receiver priority when > 3/4 full
859 * send pause when down to 2K
860 */
861 sky2_write32(hw, RB_ADDR(q, RB_RX_UTHP), tp);
862 sky2_write32(hw, RB_ADDR(q, RB_RX_LTHP), space/2);
793b883e 863
1c28f6ba
SH		 864 tp = space - 2048/8;
865 sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp);
866 sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4);
cd28ab6a
SH		 867 } else {
868 /* Enable store & forward on Tx queue's because
869 * Tx FIFO is only 1K on Yukon
870 */
871 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
872 }
873
874 sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
793b883e 875 sky2_read8(hw, RB_ADDR(q, RB_CTRL));
cd28ab6a
SH		 876}
877
cd28ab6a 878/* Setup Bus Memory Interface */
af4ed7e6 879static void sky2_qset(struct sky2_hw *hw, u16 q)
cd28ab6a
SH		 880{
881 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET);
882 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT);
883 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON);
af4ed7e6 884 sky2_write32(hw, Q_ADDR(q, Q_WM), BMU_WM_DEFAULT);
cd28ab6a
SH		 885}
886
cd28ab6a
SH		 887/* Setup prefetch unit registers. This is the interface between
888 * hardware and driver list elements
889 */
8cc048e3 890static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr,
cd28ab6a
SH		 891 u64 addr, u32 last)
892{
cd28ab6a
SH		 893 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
894 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR);
895 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), addr >> 32);
896 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), (u32) addr);
897 sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last);
898 sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON);
793b883e
SH		 899
900 sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL));
cd28ab6a
SH		 901}
902
793b883e
SH		 903static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2)
904{
905 struct sky2_tx_le *le = sky2->tx_le + sky2->tx_prod;
906
cb5d9547 907 sky2->tx_prod = RING_NEXT(sky2->tx_prod, TX_RING_SIZE);
291ea614 908 le->ctrl = 0;
793b883e
SH		 909 return le;
910}
cd28ab6a 911
88f5f0ca
SH		 912static void tx_init(struct sky2_port *sky2)
913{
914 struct sky2_tx_le *le;
915
916 sky2->tx_prod = sky2->tx_cons = 0;
917 sky2->tx_tcpsum = 0;
918 sky2->tx_last_mss = 0;
919
920 le = get_tx_le(sky2);
921 le->addr = 0;
922 le->opcode = OP_ADDR64 | HW_OWNER;
923 sky2->tx_addr64 = 0;
924}
925
291ea614
SH		 926static inline struct tx_ring_info *tx_le_re(struct sky2_port *sky2,
927 struct sky2_tx_le *le)
928{
929 return sky2->tx_ring + (le - sky2->tx_le);
930}
931
290d4de5
SH		 932/* Update chip's next pointer */
933static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, u16 idx)
cd28ab6a 934{
50432cb5 935 /* Make sure write' to descriptors are complete before we tell hardware */
762c2de2 936 wmb();
50432cb5
SH		 937 sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx);
938
939 /* Synchronize I/O on since next processor may write to tail */
940 mmiowb();
cd28ab6a
SH		 941}
942
793b883e 943
cd28ab6a
SH		 944static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2)
945{
946 struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put;
cb5d9547 947 sky2->rx_put = RING_NEXT(sky2->rx_put, RX_LE_SIZE);
291ea614 948 le->ctrl = 0;
cd28ab6a
SH		 949 return le;
950}
951
14d0263f
SH		 952/* Build description to hardware for one receive segment */
953static void sky2_rx_add(struct sky2_port *sky2, u8 op,
954 dma_addr_t map, unsigned len)
cd28ab6a
SH		 955{
956 struct sky2_rx_le *le;
36eb0c71 957 u32 hi = upper_32_bits(map);
cd28ab6a 958
793b883e 959 if (sky2->rx_addr64 != hi) {
cd28ab6a 960 le = sky2_next_rx(sky2);
793b883e 961 le->addr = cpu_to_le32(hi);
cd28ab6a 962 le->opcode = OP_ADDR64 | HW_OWNER;
36eb0c71 963 sky2->rx_addr64 = upper_32_bits(map + len);
cd28ab6a 964 }
793b883e 965
cd28ab6a 966 le = sky2_next_rx(sky2);
734d1868
SH		 967 le->addr = cpu_to_le32((u32) map);
968 le->length = cpu_to_le16(len);
14d0263f 969 le->opcode = op | HW_OWNER;
cd28ab6a
SH		 970}
971
14d0263f
SH		 972/* Build description to hardware for one possibly fragmented skb */
973static void sky2_rx_submit(struct sky2_port *sky2,
974 const struct rx_ring_info *re)
975{
976 int i;
977
978 sky2_rx_add(sky2, OP_PACKET, re->data_addr, sky2->rx_data_size);
979
980 for (i = 0; i < skb_shinfo(re->skb)->nr_frags; i++)
981 sky2_rx_add(sky2, OP_BUFFER, re->frag_addr[i], PAGE_SIZE);
982}
983
984
985static void sky2_rx_map_skb(struct pci_dev *pdev, struct rx_ring_info *re,
986 unsigned size)
987{
988 struct sk_buff *skb = re->skb;
989 int i;
990
991 re->data_addr = pci_map_single(pdev, skb->data, size, PCI_DMA_FROMDEVICE);
992 pci_unmap_len_set(re, data_size, size);
993
994 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
995 re->frag_addr[i] = pci_map_page(pdev,
996 skb_shinfo(skb)->frags[i].page,
997 skb_shinfo(skb)->frags[i].page_offset,
998 skb_shinfo(skb)->frags[i].size,
999 PCI_DMA_FROMDEVICE);
1000}
1001
1002static void sky2_rx_unmap_skb(struct pci_dev *pdev, struct rx_ring_info *re)
1003{
1004 struct sk_buff *skb = re->skb;
1005 int i;
1006
1007 pci_unmap_single(pdev, re->data_addr, pci_unmap_len(re, data_size),
1008 PCI_DMA_FROMDEVICE);
1009
1010 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
1011 pci_unmap_page(pdev, re->frag_addr[i],
1012 skb_shinfo(skb)->frags[i].size,
1013 PCI_DMA_FROMDEVICE);
1014}
793b883e 1015
cd28ab6a
SH		 1016/* Tell chip where to start receive checksum.
1017 * Actually has two checksums, but set both same to avoid possible byte
1018 * order problems.
1019 */
793b883e 1020static void rx_set_checksum(struct sky2_port *sky2)
cd28ab6a 1021{
ea76e635 1022 struct sky2_rx_le *le = sky2_next_rx(sky2);
793b883e 1023
ea76e635
SH		 1024 le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN);
1025 le->ctrl = 0;
1026 le->opcode = OP_TCPSTART | HW_OWNER;
cd28ab6a 1027
ea76e635
SH		 1028 sky2_write32(sky2->hw,
1029 Q_ADDR(rxqaddr[sky2->port], Q_CSR),
1030 sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
cd28ab6a
SH		 1031}
1032
6b1a3aef
SH		 1033/*
1034 * The RX Stop command will not work for Yukon-2 if the BMU does not
1035 * reach the end of packet and since we can't make sure that we have
1036 * incoming data, we must reset the BMU while it is not doing a DMA
1037 * transfer. Since it is possible that the RX path is still active,
1038 * the RX RAM buffer will be stopped first, so any possible incoming
1039 * data will not trigger a DMA. After the RAM buffer is stopped, the
1040 * BMU is polled until any DMA in progress is ended and only then it
1041 * will be reset.
1042 */
1043static void sky2_rx_stop(struct sky2_port *sky2)
1044{
1045 struct sky2_hw *hw = sky2->hw;
1046 unsigned rxq = rxqaddr[sky2->port];
1047 int i;
1048
1049 /* disable the RAM Buffer receive queue */
1050 sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD);
1051
1052 for (i = 0; i < 0xffff; i++)
1053 if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL))
1054 == sky2_read8(hw, RB_ADDR(rxq, Q_RL)))
1055 goto stopped;
1056
1057 printk(KERN_WARNING PFX "%s: receiver stop failed\n",
1058 sky2->netdev->name);
1059stopped:
1060 sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST);
1061
1062 /* reset the Rx prefetch unit */
1063 sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
50432cb5 1064 mmiowb();
6b1a3aef 1065}
793b883e 1066
d571b694 1067/* Clean out receive buffer area, assumes receiver hardware stopped */
cd28ab6a
SH		 1068static void sky2_rx_clean(struct sky2_port *sky2)
1069{
1070 unsigned i;
1071
1072 memset(sky2->rx_le, 0, RX_LE_BYTES);
793b883e 1073 for (i = 0; i < sky2->rx_pending; i++) {
291ea614 1074 struct rx_ring_info *re = sky2->rx_ring + i;
cd28ab6a
SH		 1075
1076 if (re->skb) {
14d0263f 1077 sky2_rx_unmap_skb(sky2->hw->pdev, re);
cd28ab6a
SH		 1078 kfree_skb(re->skb);
1079 re->skb = NULL;
1080 }
1081 }
1082}
1083
ef743d33
SH		 1084/* Basic MII support */
1085static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
1086{
1087 struct mii_ioctl_data *data = if_mii(ifr);
1088 struct sky2_port *sky2 = netdev_priv(dev);
1089 struct sky2_hw *hw = sky2->hw;
1090 int err = -EOPNOTSUPP;
1091
1092 if (!netif_running(dev))
1093 return -ENODEV; /* Phy still in reset */
1094
d89e1343 1095 switch (cmd) {
ef743d33
SH		 1096 case SIOCGMIIPHY:
1097 data->phy_id = PHY_ADDR_MARV;
1098
1099 /* fallthru */
1100 case SIOCGMIIREG: {
1101 u16 val = 0;
91c86df5 1102
e07b1aa8 1103 spin_lock_bh(&sky2->phy_lock);
ef743d33 1104 err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val);
e07b1aa8 1105 spin_unlock_bh(&sky2->phy_lock);
91c86df5 1106
ef743d33
SH		 1107 data->val_out = val;
1108 break;
1109 }
1110
1111 case SIOCSMIIREG:
1112 if (!capable(CAP_NET_ADMIN))
1113 return -EPERM;
1114
e07b1aa8 1115 spin_lock_bh(&sky2->phy_lock);
ef743d33
SH		 1116 err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f,
1117 data->val_in);
e07b1aa8 1118 spin_unlock_bh(&sky2->phy_lock);
ef743d33
SH		 1119 break;
1120 }
1121 return err;
1122}
1123
d1f13708
SH		 1124#ifdef SKY2_VLAN_TAG_USED
1125static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
1126{
1127 struct sky2_port *sky2 = netdev_priv(dev);
1128 struct sky2_hw *hw = sky2->hw;
1129 u16 port = sky2->port;
d1f13708 1130
2bb8c262 1131 netif_tx_lock_bh(dev);
bea3348e 1132 napi_disable(&hw->napi);
d1f13708 1133
d1f13708 1134 sky2->vlgrp = grp;
3d4e66f5
SH		 1135 if (grp) {
1136 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
1137 RX_VLAN_STRIP_ON);
1138 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
1139 TX_VLAN_TAG_ON);
1140 } else {
1141 sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
1142 RX_VLAN_STRIP_OFF);
1143 sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
1144 TX_VLAN_TAG_OFF);
1145 }
d1f13708 1146
bea3348e 1147 napi_enable(&hw->napi);
2bb8c262 1148 netif_tx_unlock_bh(dev);
d1f13708
SH		 1149}
1150#endif
1151
82788c7a 1152/*
14d0263f
SH		 1153 * Allocate an skb for receiving. If the MTU is large enough
1154 * make the skb non-linear with a fragment list of pages.
1155 *
82788c7a
SH		 1156 * It appears the hardware has a bug in the FIFO logic that
1157 * cause it to hang if the FIFO gets overrun and the receive buffer
497d7c86
SH		 1158 * is not 64 byte aligned. The buffer returned from netdev_alloc_skb is
1159 * aligned except if slab debugging is enabled.
82788c7a 1160 */
14d0263f 1161static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2)
82788c7a
SH		 1162{
1163 struct sk_buff *skb;
14d0263f
SH		 1164 unsigned long p;
1165 int i;
82788c7a 1166
14d0263f
SH		 1167 skb = netdev_alloc_skb(sky2->netdev, sky2->rx_data_size + RX_SKB_ALIGN);
1168 if (!skb)
1169 goto nomem;
1170
1171 p = (unsigned long) skb->data;
1172 skb_reserve(skb, ALIGN(p, RX_SKB_ALIGN) - p);
1173
1174 for (i = 0; i < sky2->rx_nfrags; i++) {
1175 struct page *page = alloc_page(GFP_ATOMIC);
1176
1177 if (!page)
1178 goto free_partial;
1179 skb_fill_page_desc(skb, i, page, 0, PAGE_SIZE);
82788c7a
SH		 1180 }
1181
1182 return skb;
14d0263f
SH		 1183free_partial:
1184 kfree_skb(skb);
1185nomem:
1186 return NULL;
82788c7a
SH		 1187}
1188
55c9dd35
SH		 1189static inline void sky2_rx_update(struct sky2_port *sky2, unsigned rxq)
1190{
1191 sky2_put_idx(sky2->hw, rxq, sky2->rx_put);
1192}
1193
cd28ab6a
SH		 1194/*
1195 * Allocate and setup receiver buffer pool.
14d0263f
SH		 1196 * Normal case this ends up creating one list element for skb
1197 * in the receive ring. Worst case if using large MTU and each
1198 * allocation falls on a different 64 bit region, that results
1199 * in 6 list elements per ring entry.
1200 * One element is used for checksum enable/disable, and one
1201 * extra to avoid wrap.
cd28ab6a 1202 */
6b1a3aef 1203static int sky2_rx_start(struct sky2_port *sky2)
cd28ab6a 1204{
6b1a3aef 1205 struct sky2_hw *hw = sky2->hw;
14d0263f 1206 struct rx_ring_info *re;
6b1a3aef 1207 unsigned rxq = rxqaddr[sky2->port];
14d0263f 1208 unsigned i, size, space, thresh;
cd28ab6a 1209
6b1a3aef 1210 sky2->rx_put = sky2->rx_next = 0;
af4ed7e6 1211 sky2_qset(hw, rxq);
977bdf06 1212
c3905bc4
SH		 1213 /* On PCI express lowering the watermark gives better performance */
1214 if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP))
1215 sky2_write32(hw, Q_ADDR(rxq, Q_WM), BMU_WM_PEX);
1216
1217 /* These chips have no ram buffer?
1218 * MAC Rx RAM Read is controlled by hardware */
8df9a876 1219 if (hw->chip_id == CHIP_ID_YUKON_EC_U &&
c3905bc4
SH		 1220 (hw->chip_rev == CHIP_REV_YU_EC_U_A1
1221 || hw->chip_rev == CHIP_REV_YU_EC_U_B0))
f449c7c1 1222 sky2_write32(hw, Q_ADDR(rxq, Q_TEST), F_M_RX_RAM_DIS);
977bdf06 1223
6b1a3aef
SH		 1224 sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1);
1225
ea76e635
SH		 1226 if (!(hw->flags & SKY2_HW_NEW_LE))
1227 rx_set_checksum(sky2);
14d0263f
SH		 1228
1229 /* Space needed for frame data + headers rounded up */
f957da2a 1230 size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8);
14d0263f
SH		 1231
1232 /* Stopping point for hardware truncation */
1233 thresh = (size - 8) / sizeof(u32);
1234
1235 /* Account for overhead of skb - to avoid order > 0 allocation */
1236 space = SKB_DATA_ALIGN(size) + NET_SKB_PAD
1237 + sizeof(struct skb_shared_info);
1238
1239 sky2->rx_nfrags = space >> PAGE_SHIFT;
1240 BUG_ON(sky2->rx_nfrags > ARRAY_SIZE(re->frag_addr));
1241
1242 if (sky2->rx_nfrags != 0) {
1243 /* Compute residue after pages */
1244 space = sky2->rx_nfrags << PAGE_SHIFT;
1245
1246 if (space < size)
1247 size -= space;
1248 else
1249 size = 0;
1250
1251 /* Optimize to handle small packets and headers */
1252 if (size < copybreak)
1253 size = copybreak;
1254 if (size < ETH_HLEN)
1255 size = ETH_HLEN;
1256 }
1257 sky2->rx_data_size = size;
1258
1259 /* Fill Rx ring */
793b883e 1260 for (i = 0; i < sky2->rx_pending; i++) {
14d0263f 1261 re = sky2->rx_ring + i;
cd28ab6a 1262
14d0263f 1263 re->skb = sky2_rx_alloc(sky2);
cd28ab6a
SH		 1264 if (!re->skb)
1265 goto nomem;
1266
14d0263f
SH		 1267 sky2_rx_map_skb(hw->pdev, re, sky2->rx_data_size);
1268 sky2_rx_submit(sky2, re);
cd28ab6a
SH		 1269 }
1270
a1433ac4
SH		 1271 /*
1272 * The receiver hangs if it receives frames larger than the
1273 * packet buffer. As a workaround, truncate oversize frames, but
1274 * the register is limited to 9 bits, so if you do frames > 2052
1275 * you better get the MTU right!
1276 */
a1433ac4
SH		 1277 if (thresh > 0x1ff)
1278 sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_OFF);
1279 else {
1280 sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), thresh);
1281 sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON);
1282 }
1283
6b1a3aef 1284 /* Tell chip about available buffers */
55c9dd35 1285 sky2_rx_update(sky2, rxq);
cd28ab6a
SH		 1286 return 0;
1287nomem:
1288 sky2_rx_clean(sky2);
1289 return -ENOMEM;
1290}
1291
1292/* Bring up network interface. */
1293static int sky2_up(struct net_device *dev)
1294{
1295 struct sky2_port *sky2 = netdev_priv(dev);
1296 struct sky2_hw *hw = sky2->hw;
1297 unsigned port = sky2->port;
e0c28116 1298 u32 imask, ramsize;
ee7abb04 1299 int cap, err = -ENOMEM;
843a46f4 1300 struct net_device *otherdev = hw->dev[sky2->port^1];
cd28ab6a 1301
ee7abb04
SH		 1302 /*
1303 * On dual port PCI-X card, there is an problem where status
1304 * can be received out of order due to split transactions
843a46f4 1305 */
ee7abb04
SH		 1306 if (otherdev && netif_running(otherdev) &&
1307 (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) {
1308 struct sky2_port *osky2 = netdev_priv(otherdev);
1309 u16 cmd;
1310
167f53d0 1311 pci_read_config_word(hw->pdev, cap + PCI_X_CMD, &cmd);
ee7abb04 1312 cmd &= ~PCI_X_CMD_MAX_SPLIT;
167f53d0 1313 pci_write_config_word(hw->pdev, cap + PCI_X_CMD, cmd);
ee7abb04
SH		 1314
1315 sky2->rx_csum = 0;
1316 osky2->rx_csum = 0;
1317 }
843a46f4 1318
cd28ab6a
SH		 1319 if (netif_msg_ifup(sky2))
1320 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
1321
55d7b4e6
SH		 1322 netif_carrier_off(dev);
1323
cd28ab6a
SH		 1324 /* must be power of 2 */
1325 sky2->tx_le = pci_alloc_consistent(hw->pdev,
793b883e
SH		 1326 TX_RING_SIZE *
1327 sizeof(struct sky2_tx_le),
cd28ab6a
SH		 1328 &sky2->tx_le_map);
1329 if (!sky2->tx_le)
1330 goto err_out;
1331
6cdbbdf3 1332 sky2->tx_ring = kcalloc(TX_RING_SIZE, sizeof(struct tx_ring_info),
cd28ab6a
SH		 1333 GFP_KERNEL);
1334 if (!sky2->tx_ring)
1335 goto err_out;
88f5f0ca
SH		 1336
1337 tx_init(sky2);
cd28ab6a
SH		 1338
1339 sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES,
1340 &sky2->rx_le_map);
1341 if (!sky2->rx_le)
1342 goto err_out;
1343 memset(sky2->rx_le, 0, RX_LE_BYTES);
1344
291ea614 1345 sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct rx_ring_info),
cd28ab6a
SH		 1346 GFP_KERNEL);
1347 if (!sky2->rx_ring)
1348 goto err_out;
1349
d3bcfbeb
SH		 1350 sky2_phy_power(hw, port, 1);
1351
cd28ab6a
SH		 1352 sky2_mac_init(hw, port);
1353
e0c28116
SH		 1354 /* Register is number of 4K blocks on internal RAM buffer. */
1355 ramsize = sky2_read8(hw, B2_E_0) * 4;
1356 if (ramsize > 0) {
67712901 1357 u32 rxspace;
cd28ab6a 1358
e0c28116 1359 pr_debug(PFX "%s: ram buffer %dK\n", dev->name, ramsize);
67712901
SH		 1360 if (ramsize < 16)
1361 rxspace = ramsize / 2;
1362 else
1363 rxspace = 8 + (2*(ramsize - 16))/3;
cd28ab6a 1364
67712901
SH		 1365 sky2_ramset(hw, rxqaddr[port], 0, rxspace);
1366 sky2_ramset(hw, txqaddr[port], rxspace, ramsize - rxspace);
1367
1368 /* Make sure SyncQ is disabled */
1369 sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL),
1370 RB_RST_SET);
1371 }
793b883e 1372
af4ed7e6 1373 sky2_qset(hw, txqaddr[port]);
5a5b1ea0 1374
69161611
SH		 1375 /* This is copied from sk98lin 10.0.5.3; no one tells me about erratta's */
1376 if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev == CHIP_REV_YU_EX_B0)
1377 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_TEST), F_TX_CHK_AUTO_OFF);
1378
977bdf06 1379 /* Set almost empty threshold */
c2716fb4
SH		 1380 if (hw->chip_id == CHIP_ID_YUKON_EC_U
1381 && hw->chip_rev == CHIP_REV_YU_EC_U_A0)
b628ed98 1382 sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), ECU_TXFF_LEV);
5a5b1ea0 1383
6b1a3aef
SH		 1384 sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map,
1385 TX_RING_SIZE - 1);
cd28ab6a 1386
6b1a3aef 1387 err = sky2_rx_start(sky2);
6de16237 1388 if (err)
cd28ab6a
SH		 1389 goto err_out;
1390
cd28ab6a 1391 /* Enable interrupts from phy/mac for port */
e07b1aa8 1392 imask = sky2_read32(hw, B0_IMSK);
f4ea431b 1393 imask |= portirq_msk[port];
e07b1aa8
SH		 1394 sky2_write32(hw, B0_IMSK, imask);
1395
cd28ab6a
SH		 1396 return 0;
1397
1398err_out:
1b537565 1399 if (sky2->rx_le) {
cd28ab6a
SH		 1400 pci_free_consistent(hw->pdev, RX_LE_BYTES,
1401 sky2->rx_le, sky2->rx_le_map);
1b537565
SH		 1402 sky2->rx_le = NULL;
1403 }
1404 if (sky2->tx_le) {
cd28ab6a
SH		 1405 pci_free_consistent(hw->pdev,
1406 TX_RING_SIZE * sizeof(struct sky2_tx_le),
1407 sky2->tx_le, sky2->tx_le_map);
1b537565
SH		 1408 sky2->tx_le = NULL;
1409 }
1410 kfree(sky2->tx_ring);
1411 kfree(sky2->rx_ring);
cd28ab6a 1412
1b537565
SH		 1413 sky2->tx_ring = NULL;
1414 sky2->rx_ring = NULL;
cd28ab6a
SH		 1415 return err;
1416}
1417
793b883e
SH		 1418/* Modular subtraction in ring */
1419static inline int tx_dist(unsigned tail, unsigned head)
1420{
cb5d9547 1421 return (head - tail) & (TX_RING_SIZE - 1);
793b883e 1422}
cd28ab6a 1423
793b883e
SH		 1424/* Number of list elements available for next tx */
1425static inline int tx_avail(const struct sky2_port *sky2)
cd28ab6a 1426{
793b883e 1427 return sky2->tx_pending - tx_dist(sky2->tx_cons, sky2->tx_prod);
cd28ab6a
SH		 1428}
1429
793b883e 1430/* Estimate of number of transmit list elements required */
28bd181a 1431static unsigned tx_le_req(const struct sk_buff *skb)
cd28ab6a 1432{
793b883e
SH		 1433 unsigned count;
1434
1435 count = sizeof(dma_addr_t) / sizeof(u32);
1436 count += skb_shinfo(skb)->nr_frags * count;
1437
89114afd 1438 if (skb_is_gso(skb))
793b883e
SH		 1439 ++count;
1440
84fa7933 1441 if (skb->ip_summed == CHECKSUM_PARTIAL)
793b883e
SH		 1442 ++count;
1443
1444 return count;
cd28ab6a
SH		 1445}
1446
793b883e
SH		 1447/*
1448 * Put one packet in ring for transmit.
1449 * A single packet can generate multiple list elements, and
1450 * the number of ring elements will probably be less than the number
1451 * of list elements used.
1452 */
cd28ab6a
SH		 1453static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
1454{
1455 struct sky2_port *sky2 = netdev_priv(dev);
1456 struct sky2_hw *hw = sky2->hw;
d1f13708 1457 struct sky2_tx_le *le = NULL;
6cdbbdf3 1458 struct tx_ring_info *re;
cd28ab6a
SH		 1459 unsigned i, len;
1460 dma_addr_t mapping;
1461 u32 addr64;
1462 u16 mss;
1463 u8 ctrl;
1464
2bb8c262
SH		 1465 if (unlikely(tx_avail(sky2) < tx_le_req(skb)))
1466 return NETDEV_TX_BUSY;
cd28ab6a 1467
793b883e 1468 if (unlikely(netif_msg_tx_queued(sky2)))
cd28ab6a
SH		 1469 printk(KERN_DEBUG "%s: tx queued, slot %u, len %d\n",
1470 dev->name, sky2->tx_prod, skb->len);
1471
cd28ab6a
SH		 1472 len = skb_headlen(skb);
1473 mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
36eb0c71 1474 addr64 = upper_32_bits(mapping);
793b883e 1475
a018e330 1476 /* Send high bits if changed or crosses boundary */
36eb0c71
SH		 1477 if (addr64 != sky2->tx_addr64 ||
1478 upper_32_bits(mapping + len) != sky2->tx_addr64) {
793b883e 1479 le = get_tx_le(sky2);
f65b138c 1480 le->addr = cpu_to_le32(addr64);
793b883e 1481 le->opcode = OP_ADDR64 | HW_OWNER;
36eb0c71 1482 sky2->tx_addr64 = upper_32_bits(mapping + len);
793b883e 1483 }
cd28ab6a
SH		 1484
1485 /* Check for TCP Segmentation Offload */
7967168c 1486 mss = skb_shinfo(skb)->gso_size;
793b883e 1487 if (mss != 0) {
ea76e635
SH		 1488
1489 if (!(hw->flags & SKY2_HW_NEW_LE))
69161611
SH		 1490 mss += ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb);
1491
1492 if (mss != sky2->tx_last_mss) {
1493 le = get_tx_le(sky2);
1494 le->addr = cpu_to_le32(mss);
ea76e635
SH		 1495
1496 if (hw->flags & SKY2_HW_NEW_LE)
69161611
SH		 1497 le->opcode = OP_MSS | HW_OWNER;
1498 else
1499 le->opcode = OP_LRGLEN | HW_OWNER;
e07560cd
SH		 1500 sky2->tx_last_mss = mss;
1501 }
cd28ab6a
SH		 1502 }
1503
cd28ab6a 1504 ctrl = 0;
d1f13708
SH		 1505#ifdef SKY2_VLAN_TAG_USED
1506 /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */
1507 if (sky2->vlgrp && vlan_tx_tag_present(skb)) {
1508 if (!le) {
1509 le = get_tx_le(sky2);
f65b138c 1510 le->addr = 0;
d1f13708 1511 le->opcode = OP_VLAN|HW_OWNER;
d1f13708
SH		 1512 } else
1513 le->opcode |= OP_VLAN;
1514 le->length = cpu_to_be16(vlan_tx_tag_get(skb));
1515 ctrl |= INS_VLAN;
1516 }
1517#endif
1518
1519 /* Handle TCP checksum offload */
84fa7933 1520 if (skb->ip_summed == CHECKSUM_PARTIAL) {
69161611 1521 /* On Yukon EX (some versions) encoding change. */
ea76e635 1522 if (hw->flags & SKY2_HW_AUTO_TX_SUM)
69161611
SH		 1523 ctrl |= CALSUM; /* auto checksum */
1524 else {
1525 const unsigned offset = skb_transport_offset(skb);
1526 u32 tcpsum;
1527
1528 tcpsum = offset << 16; /* sum start */
1529 tcpsum |= offset + skb->csum_offset; /* sum write */
1530
1531 ctrl |= CALSUM | WR_SUM | INIT_SUM | LOCK_SUM;
1532 if (ip_hdr(skb)->protocol == IPPROTO_UDP)
1533 ctrl |= UDPTCP;
1534
1535 if (tcpsum != sky2->tx_tcpsum) {
1536 sky2->tx_tcpsum = tcpsum;
1537
1538 le = get_tx_le(sky2);
1539 le->addr = cpu_to_le32(tcpsum);
1540 le->length = 0; /* initial checksum value */
1541 le->ctrl = 1; /* one packet */
1542 le->opcode = OP_TCPLISW | HW_OWNER;
1543 }
1d179332 1544 }
cd28ab6a
SH		 1545 }
1546
1547 le = get_tx_le(sky2);
f65b138c 1548 le->addr = cpu_to_le32((u32) mapping);
cd28ab6a
SH		 1549 le->length = cpu_to_le16(len);
1550 le->ctrl = ctrl;
793b883e 1551 le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER);
cd28ab6a 1552
291ea614 1553 re = tx_le_re(sky2, le);
cd28ab6a 1554 re->skb = skb;
6cdbbdf3 1555 pci_unmap_addr_set(re, mapaddr, mapping);
291ea614 1556 pci_unmap_len_set(re, maplen, len);
cd28ab6a
SH		 1557
1558 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
291ea614 1559 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
cd28ab6a
SH		 1560
1561 mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset,
1562 frag->size, PCI_DMA_TODEVICE);
36eb0c71 1563 addr64 = upper_32_bits(mapping);
793b883e
SH		 1564 if (addr64 != sky2->tx_addr64) {
1565 le = get_tx_le(sky2);
f65b138c 1566 le->addr = cpu_to_le32(addr64);
793b883e
SH		 1567 le->ctrl = 0;
1568 le->opcode = OP_ADDR64 | HW_OWNER;
1569 sky2->tx_addr64 = addr64;
cd28ab6a
SH		 1570 }
1571
1572 le = get_tx_le(sky2);
f65b138c 1573 le->addr = cpu_to_le32((u32) mapping);
cd28ab6a
SH		 1574 le->length = cpu_to_le16(frag->size);
1575 le->ctrl = ctrl;
793b883e 1576 le->opcode = OP_BUFFER | HW_OWNER;
cd28ab6a 1577
291ea614
SH		 1578 re = tx_le_re(sky2, le);
1579 re->skb = skb;
1580 pci_unmap_addr_set(re, mapaddr, mapping);
1581 pci_unmap_len_set(re, maplen, frag->size);
cd28ab6a 1582 }
6cdbbdf3 1583
cd28ab6a
SH		 1584 le->ctrl |= EOP;
1585
97bda706
SH		 1586 if (tx_avail(sky2) <= MAX_SKB_TX_LE)
1587 netif_stop_queue(dev);
b19666d9 1588
290d4de5 1589 sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod);
cd28ab6a 1590
cd28ab6a
SH		 1591 dev->trans_start = jiffies;
1592 return NETDEV_TX_OK;
1593}
1594
cd28ab6a 1595/*
793b883e
SH		 1596 * Free ring elements from starting at tx_cons until "done"
1597 *
1598 * NB: the hardware will tell us about partial completion of multi-part
291ea614 1599 * buffers so make sure not to free skb to early.
cd28ab6a 1600 */
d11c13e7 1601static void sky2_tx_complete(struct sky2_port *sky2, u16 done)
cd28ab6a 1602{
d11c13e7 1603 struct net_device *dev = sky2->netdev;
af2a58ac 1604 struct pci_dev *pdev = sky2->hw->pdev;
291ea614 1605 unsigned idx;
cd28ab6a 1606
0e3ff6aa 1607 BUG_ON(done >= TX_RING_SIZE);
2224795d 1608
291ea614
SH		 1609 for (idx = sky2->tx_cons; idx != done;
1610 idx = RING_NEXT(idx, TX_RING_SIZE)) {
1611 struct sky2_tx_le *le = sky2->tx_le + idx;
1612 struct tx_ring_info *re = sky2->tx_ring + idx;
1613
1614 switch(le->opcode & ~HW_OWNER) {
1615 case OP_LARGESEND:
1616 case OP_PACKET:
1617 pci_unmap_single(pdev,
1618 pci_unmap_addr(re, mapaddr),
1619 pci_unmap_len(re, maplen),
1620 PCI_DMA_TODEVICE);
af2a58ac 1621 break;
291ea614
SH		 1622 case OP_BUFFER:
1623 pci_unmap_page(pdev, pci_unmap_addr(re, mapaddr),
1624 pci_unmap_len(re, maplen),
734d1868 1625 PCI_DMA_TODEVICE);
291ea614
SH		 1626 break;
1627 }
1628
1629 if (le->ctrl & EOP) {
1630 if (unlikely(netif_msg_tx_done(sky2)))
1631 printk(KERN_DEBUG "%s: tx done %u\n",
1632 dev->name, idx);
3cf26753 1633
7138a0f5
SH		 1634 dev->stats.tx_packets++;
1635 dev->stats.tx_bytes += re->skb->len;
2bf56fe2 1636
794b2bd2 1637 dev_kfree_skb_any(re->skb);
3cf26753 1638 sky2->tx_next = RING_NEXT(idx, TX_RING_SIZE);
cd28ab6a 1639 }
793b883e 1640 }
793b883e 1641
291ea614 1642 sky2->tx_cons = idx;
50432cb5
SH		 1643 smp_mb();
1644
22e11703 1645 if (tx_avail(sky2) > MAX_SKB_TX_LE + 4)
cd28ab6a 1646 netif_wake_queue(dev);
cd28ab6a
SH		 1647}
1648
1649/* Cleanup all untransmitted buffers, assume transmitter not running */
2bb8c262 1650static void sky2_tx_clean(struct net_device *dev)
cd28ab6a 1651{
2bb8c262
SH		 1652 struct sky2_port *sky2 = netdev_priv(dev);
1653
1654 netif_tx_lock_bh(dev);
d11c13e7 1655 sky2_tx_complete(sky2, sky2->tx_prod);
2bb8c262 1656 netif_tx_unlock_bh(dev);
cd28ab6a
SH		 1657}
1658
1659/* Network shutdown */
1660static int sky2_down(struct net_device *dev)
1661{
1662 struct sky2_port *sky2 = netdev_priv(dev);
1663 struct sky2_hw *hw = sky2->hw;
1664 unsigned port = sky2->port;
1665 u16 ctrl;
e07b1aa8 1666 u32 imask;
cd28ab6a 1667
1b537565
SH		 1668 /* Never really got started! */
1669 if (!sky2->tx_le)
1670 return 0;
1671
cd28ab6a
SH		 1672 if (netif_msg_ifdown(sky2))
1673 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
1674
018d1c66 1675 /* Stop more packets from being queued */
cd28ab6a
SH		 1676 netif_stop_queue(dev);
1677
ebc646f6
SH		 1678 /* Disable port IRQ */
1679 imask = sky2_read32(hw, B0_IMSK);
1680 imask &= ~portirq_msk[port];
1681 sky2_write32(hw, B0_IMSK, imask);
1682
6de16237
SH		 1683 synchronize_irq(hw->pdev->irq);
1684
d3bcfbeb 1685 sky2_gmac_reset(hw, port);
793b883e 1686
cd28ab6a
SH		 1687 /* Stop transmitter */
1688 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP);
1689 sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR));
1690
1691 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
793b883e 1692 RB_RST_SET | RB_DIS_OP_MD);
cd28ab6a
SH		 1693
1694 ctrl = gma_read16(hw, port, GM_GP_CTRL);
793b883e 1695 ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA);
cd28ab6a
SH		 1696 gma_write16(hw, port, GM_GP_CTRL, ctrl);
1697
6de16237
SH		 1698 /* Make sure no packets are pending */
1699 napi_synchronize(&hw->napi);
1700
cd28ab6a
SH		 1701 sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
1702
1703 /* Workaround shared GMAC reset */
793b883e
SH		 1704 if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0
1705 && port == 0 && hw->dev[1] && netif_running(hw->dev[1])))
cd28ab6a
SH		 1706 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
1707
1708 /* Disable Force Sync bit and Enable Alloc bit */
1709 sky2_write8(hw, SK_REG(port, TXA_CTRL),
1710 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
1711
1712 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
1713 sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
1714 sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
1715
1716 /* Reset the PCI FIFO of the async Tx queue */
793b883e
SH		 1717 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR),
1718 BMU_RST_SET | BMU_FIFO_RST);
cd28ab6a
SH		 1719
1720 /* Reset the Tx prefetch units */
1721 sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL),
1722 PREF_UNIT_RST_SET);
1723
1724 sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
1725
6b1a3aef 1726 sky2_rx_stop(sky2);
cd28ab6a
SH		 1727
1728 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
1729 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
1730
d3bcfbeb
SH		 1731 sky2_phy_power(hw, port, 0);
1732
55d7b4e6
SH		 1733 netif_carrier_off(dev);
1734
d571b694 1735 /* turn off LED's */
cd28ab6a
SH		 1736 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
1737
2bb8c262 1738 sky2_tx_clean(dev);
cd28ab6a
SH		 1739 sky2_rx_clean(sky2);
1740
1741 pci_free_consistent(hw->pdev, RX_LE_BYTES,
1742 sky2->rx_le, sky2->rx_le_map);
1743 kfree(sky2->rx_ring);
1744
1745 pci_free_consistent(hw->pdev,
1746 TX_RING_SIZE * sizeof(struct sky2_tx_le),
1747 sky2->tx_le, sky2->tx_le_map);
1748 kfree(sky2->tx_ring);
1749
1b537565
SH		 1750 sky2->tx_le = NULL;
1751 sky2->rx_le = NULL;
1752
1753 sky2->rx_ring = NULL;
1754 sky2->tx_ring = NULL;
1755
cd28ab6a
SH		 1756 return 0;
1757}
1758
1759static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux)
1760{
ea76e635 1761 if (hw->flags & SKY2_HW_FIBRE_PHY)
793b883e
SH		 1762 return SPEED_1000;
1763
05745c4a
SH		 1764 if (!(hw->flags & SKY2_HW_GIGABIT)) {
1765 if (aux & PHY_M_PS_SPEED_100)
1766 return SPEED_100;
1767 else
1768 return SPEED_10;
1769 }
cd28ab6a
SH		 1770
1771 switch (aux & PHY_M_PS_SPEED_MSK) {
1772 case PHY_M_PS_SPEED_1000:
1773 return SPEED_1000;
1774 case PHY_M_PS_SPEED_100:
1775 return SPEED_100;
1776 default:
1777 return SPEED_10;
1778 }
1779}
1780
1781static void sky2_link_up(struct sky2_port *sky2)
1782{
1783 struct sky2_hw *hw = sky2->hw;
1784 unsigned port = sky2->port;
1785 u16 reg;
16ad91e1
SH		 1786 static const char *fc_name[] = {
1787 [FC_NONE] = "none",
1788 [FC_TX] = "tx",
1789 [FC_RX] = "rx",
1790 [FC_BOTH] = "both",
1791 };
cd28ab6a 1792
cd28ab6a 1793 /* enable Rx/Tx */
2eaba1a2 1794 reg = gma_read16(hw, port, GM_GP_CTRL);
cd28ab6a
SH		 1795 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
1796 gma_write16(hw, port, GM_GP_CTRL, reg);
cd28ab6a
SH		 1797
1798 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
1799
1800 netif_carrier_on(sky2->netdev);
cd28ab6a 1801
75e80683 1802 mod_timer(&hw->watchdog_timer, jiffies + 1);
32c2c300 1803
cd28ab6a 1804 /* Turn on link LED */
793b883e 1805 sky2_write8(hw, SK_REG(port, LNK_LED_REG),
cd28ab6a
SH		 1806 LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF);
1807
ea76e635 1808 if (hw->flags & SKY2_HW_NEWER_PHY) {
793b883e 1809 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
ed6d32c7
SH		 1810 u16 led = PHY_M_LEDC_LOS_CTRL(1); /* link active */
1811
1812 switch(sky2->speed) {
1813 case SPEED_10:
1814 led |= PHY_M_LEDC_INIT_CTRL(7);
1815 break;
1816
1817 case SPEED_100:
1818 led |= PHY_M_LEDC_STA1_CTRL(7);
1819 break;
1820
1821 case SPEED_1000:
1822 led |= PHY_M_LEDC_STA0_CTRL(7);
1823 break;
1824 }
793b883e
SH		 1825
1826 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
ed6d32c7 1827 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, led);
793b883e
SH		 1828 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
1829 }
1830
cd28ab6a
SH		 1831 if (netif_msg_link(sky2))
1832 printk(KERN_INFO PFX
d571b694 1833 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
cd28ab6a
SH		 1834 sky2->netdev->name, sky2->speed,
1835 sky2->duplex == DUPLEX_FULL ? "full" : "half",
16ad91e1 1836 fc_name[sky2->flow_status]);
cd28ab6a
SH		 1837}
1838
1839static void sky2_link_down(struct sky2_port *sky2)
1840{
1841 struct sky2_hw *hw = sky2->hw;
1842 unsigned port = sky2->port;
1843 u16 reg;
1844
1845 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
1846
1847 reg = gma_read16(hw, port, GM_GP_CTRL);
1848 reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
1849 gma_write16(hw, port, GM_GP_CTRL, reg);
cd28ab6a 1850
cd28ab6a 1851 netif_carrier_off(sky2->netdev);
cd28ab6a
SH		 1852
1853 /* Turn on link LED */
1854 sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
1855
1856 if (netif_msg_link(sky2))
1857 printk(KERN_INFO PFX "%s: Link is down.\n", sky2->netdev->name);
2eaba1a2 1858
cd28ab6a
SH		 1859 sky2_phy_init(hw, port);
1860}
1861
16ad91e1
SH		 1862static enum flow_control sky2_flow(int rx, int tx)
1863{
1864 if (rx)
1865 return tx ? FC_BOTH : FC_RX;
1866 else
1867 return tx ? FC_TX : FC_NONE;
1868}
1869
793b883e
SH		 1870static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux)
1871{
1872 struct sky2_hw *hw = sky2->hw;
1873 unsigned port = sky2->port;
da4c1ff4 1874 u16 advert, lpa;
793b883e 1875
da4c1ff4 1876 advert = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV);
793b883e 1877 lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP);
793b883e
SH		 1878 if (lpa & PHY_M_AN_RF) {
1879 printk(KERN_ERR PFX "%s: remote fault", sky2->netdev->name);
1880 return -1;
1881 }
1882
793b883e
SH		 1883 if (!(aux & PHY_M_PS_SPDUP_RES)) {
1884 printk(KERN_ERR PFX "%s: speed/duplex mismatch",
1885 sky2->netdev->name);
1886 return -1;
1887 }
1888
793b883e 1889 sky2->speed = sky2_phy_speed(hw, aux);
7c74ac1c 1890 sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
793b883e 1891
da4c1ff4
SH		 1892 /* Since the pause result bits seem to in different positions on
1893 * different chips. look at registers.
1894 */
ea76e635 1895 if (hw->flags & SKY2_HW_FIBRE_PHY) {
da4c1ff4
SH		 1896 /* Shift for bits in fiber PHY */
1897 advert &= ~(ADVERTISE_PAUSE_CAP|ADVERTISE_PAUSE_ASYM);
1898 lpa &= ~(LPA_PAUSE_CAP|LPA_PAUSE_ASYM);
1899
1900 if (advert & ADVERTISE_1000XPAUSE)
1901 advert |= ADVERTISE_PAUSE_CAP;
1902 if (advert & ADVERTISE_1000XPSE_ASYM)
1903 advert |= ADVERTISE_PAUSE_ASYM;
1904 if (lpa & LPA_1000XPAUSE)
1905 lpa |= LPA_PAUSE_CAP;
1906 if (lpa & LPA_1000XPAUSE_ASYM)
1907 lpa |= LPA_PAUSE_ASYM;
1908 }
793b883e 1909
da4c1ff4
SH		 1910 sky2->flow_status = FC_NONE;
1911 if (advert & ADVERTISE_PAUSE_CAP) {
1912 if (lpa & LPA_PAUSE_CAP)
1913 sky2->flow_status = FC_BOTH;
1914 else if (advert & ADVERTISE_PAUSE_ASYM)
1915 sky2->flow_status = FC_RX;
1916 } else if (advert & ADVERTISE_PAUSE_ASYM) {
1917 if ((lpa & LPA_PAUSE_CAP) && (lpa & LPA_PAUSE_ASYM))
1918 sky2->flow_status = FC_TX;
1919 }
793b883e 1920
16ad91e1 1921 if (sky2->duplex == DUPLEX_HALF && sky2->speed < SPEED_1000
93745494 1922 && !(hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX))
16ad91e1 1923 sky2->flow_status = FC_NONE;
2eaba1a2 1924
da4c1ff4 1925 if (sky2->flow_status & FC_TX)
793b883e
SH		 1926 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
1927 else
1928 sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1929
1930 return 0;
1931}
cd28ab6a 1932
e07b1aa8
SH		 1933/* Interrupt from PHY */
1934static void sky2_phy_intr(struct sky2_hw *hw, unsigned port)
cd28ab6a 1935{
e07b1aa8
SH		 1936 struct net_device *dev = hw->dev[port];
1937 struct sky2_port *sky2 = netdev_priv(dev);
cd28ab6a
SH		 1938 u16 istatus, phystat;
1939
ebc646f6
SH		 1940 if (!netif_running(dev))
1941 return;
1942
e07b1aa8
SH		 1943 spin_lock(&sky2->phy_lock);
1944 istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
1945 phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
1946
cd28ab6a
SH		 1947 if (netif_msg_intr(sky2))
1948 printk(KERN_INFO PFX "%s: phy interrupt status 0x%x 0x%x\n",
1949 sky2->netdev->name, istatus, phystat);
1950
2eaba1a2 1951 if (sky2->autoneg == AUTONEG_ENABLE && (istatus & PHY_M_IS_AN_COMPL)) {
793b883e
SH		 1952 if (sky2_autoneg_done(sky2, phystat) == 0)
1953 sky2_link_up(sky2);
1954 goto out;
1955 }
cd28ab6a 1956
793b883e
SH		 1957 if (istatus & PHY_M_IS_LSP_CHANGE)
1958 sky2->speed = sky2_phy_speed(hw, phystat);
cd28ab6a 1959
793b883e
SH		 1960 if (istatus & PHY_M_IS_DUP_CHANGE)
1961 sky2->duplex =
1962 (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
cd28ab6a 1963
793b883e
SH		 1964 if (istatus & PHY_M_IS_LST_CHANGE) {
1965 if (phystat & PHY_M_PS_LINK_UP)
cd28ab6a 1966 sky2_link_up(sky2);
793b883e
SH		 1967 else
1968 sky2_link_down(sky2);
cd28ab6a 1969 }
793b883e 1970out:
e07b1aa8 1971 spin_unlock(&sky2->phy_lock);
cd28ab6a
SH		 1972}
1973
62335ab0 1974/* Transmit timeout is only called if we are running, carrier is up
302d1252
SH		 1975 * and tx queue is full (stopped).
1976 */
cd28ab6a
SH		 1977static void sky2_tx_timeout(struct net_device *dev)
1978{
1979 struct sky2_port *sky2 = netdev_priv(dev);
8cc048e3 1980 struct sky2_hw *hw = sky2->hw;
cd28ab6a
SH		 1981
1982 if (netif_msg_timer(sky2))
1983 printk(KERN_ERR PFX "%s: tx timeout\n", dev->name);
1984
8f24664d 1985 printk(KERN_DEBUG PFX "%s: transmit ring %u .. %u report=%u done=%u\n",
62335ab0
SH		 1986 dev->name, sky2->tx_cons, sky2->tx_prod,
1987 sky2_read16(hw, sky2->port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX),
1988 sky2_read16(hw, Q_ADDR(txqaddr[sky2->port], Q_DONE)));
8f24664d 1989
81906791
SH		 1990 /* can't restart safely under softirq */
1991 schedule_work(&hw->restart_work);
cd28ab6a
SH		 1992}
1993
1994static int sky2_change_mtu(struct net_device *dev, int new_mtu)
1995{
6b1a3aef
SH		 1996 struct sky2_port *sky2 = netdev_priv(dev);
1997 struct sky2_hw *hw = sky2->hw;
b628ed98 1998 unsigned port = sky2->port;
6b1a3aef
SH		 1999 int err;
2000 u16 ctl, mode;
e07b1aa8 2001 u32 imask;
cd28ab6a
SH		 2002
2003 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
2004 return -EINVAL;
2005
05745c4a
SH		 2006 if (new_mtu > ETH_DATA_LEN &&
2007 (hw->chip_id == CHIP_ID_YUKON_FE ||
2008 hw->chip_id == CHIP_ID_YUKON_FE_P))
d2adf4f6
SH		 2009 return -EINVAL;
2010
6b1a3aef
SH		 2011 if (!netif_running(dev)) {
2012 dev->mtu = new_mtu;
2013 return 0;
2014 }
2015
e07b1aa8 2016 imask = sky2_read32(hw, B0_IMSK);
6b1a3aef
SH		 2017 sky2_write32(hw, B0_IMSK, 0);
2018
018d1c66
SH		 2019 dev->trans_start = jiffies; /* prevent tx timeout */
2020 netif_stop_queue(dev);
bea3348e 2021 napi_disable(&hw->napi);
018d1c66 2022
e07b1aa8
SH		 2023 synchronize_irq(hw->pdev->irq);
2024
e0c28116 2025 if (sky2_read8(hw, B2_E_0) == 0)
69161611 2026 sky2_set_tx_stfwd(hw, port);
b628ed98
SH		 2027
2028 ctl = gma_read16(hw, port, GM_GP_CTRL);
2029 gma_write16(hw, port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA);
6b1a3aef
SH		 2030 sky2_rx_stop(sky2);
2031 sky2_rx_clean(sky2);
cd28ab6a
SH		 2032
2033 dev->mtu = new_mtu;
14d0263f 2034
6b1a3aef
SH		 2035 mode = DATA_BLIND_VAL(DATA_BLIND_DEF) |
2036 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
2037
2038 if (dev->mtu > ETH_DATA_LEN)
2039 mode |= GM_SMOD_JUMBO_ENA;
2040
b628ed98 2041 gma_write16(hw, port, GM_SERIAL_MODE, mode);
cd28ab6a 2042
b628ed98 2043 sky2_write8(hw, RB_ADDR(rxqaddr[port], RB_CTRL), RB_ENA_OP_MD);
cd28ab6a 2044
6b1a3aef 2045 err = sky2_rx_start(sky2);
e07b1aa8 2046 sky2_write32(hw, B0_IMSK, imask);
018d1c66 2047
bea3348e
SH		 2048 napi_enable(&hw->napi);
2049
1b537565
SH		 2050 if (err)
2051 dev_close(dev);
2052 else {
b628ed98 2053 gma_write16(hw, port, GM_GP_CTRL, ctl);
1b537565 2054
1b537565
SH		 2055 netif_wake_queue(dev);
2056 }
2057
cd28ab6a
SH		 2058 return err;
2059}
2060
14d0263f
SH		 2061/* For small just reuse existing skb for next receive */
2062static struct sk_buff *receive_copy(struct sky2_port *sky2,
2063 const struct rx_ring_info *re,
2064 unsigned length)
2065{
2066 struct sk_buff *skb;
2067
2068 skb = netdev_alloc_skb(sky2->netdev, length + 2);
2069 if (likely(skb)) {
2070 skb_reserve(skb, 2);
2071 pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->data_addr,
2072 length, PCI_DMA_FROMDEVICE);
d626f62b 2073 skb_copy_from_linear_data(re->skb, skb->data, length);
14d0263f
SH		 2074 skb->ip_summed = re->skb->ip_summed;
2075 skb->csum = re->skb->csum;
2076 pci_dma_sync_single_for_device(sky2->hw->pdev, re->data_addr,
2077 length, PCI_DMA_FROMDEVICE);
2078 re->skb->ip_summed = CHECKSUM_NONE;
489b10c1 2079 skb_put(skb, length);
14d0263f
SH		 2080 }
2081 return skb;
2082}
2083
2084/* Adjust length of skb with fragments to match received data */
2085static void skb_put_frags(struct sk_buff *skb, unsigned int hdr_space,
2086 unsigned int length)
2087{
2088 int i, num_frags;
2089 unsigned int size;
2090
2091 /* put header into skb */
2092 size = min(length, hdr_space);
2093 skb->tail += size;
2094 skb->len += size;
2095 length -= size;
2096
2097 num_frags = skb_shinfo(skb)->nr_frags;
2098 for (i = 0; i < num_frags; i++) {
2099 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2100
2101 if (length == 0) {
2102 /* don't need this page */
2103 __free_page(frag->page);
2104 --skb_shinfo(skb)->nr_frags;
2105 } else {
2106 size = min(length, (unsigned) PAGE_SIZE);
2107
2108 frag->size = size;
2109 skb->data_len += size;
2110 skb->truesize += size;
2111 skb->len += size;
2112 length -= size;
2113 }
2114 }
2115}
2116
2117/* Normal packet - take skb from ring element and put in a new one */
2118static struct sk_buff *receive_new(struct sky2_port *sky2,
2119 struct rx_ring_info *re,
2120 unsigned int length)
2121{
2122 struct sk_buff *skb, *nskb;
2123 unsigned hdr_space = sky2->rx_data_size;
2124
14d0263f
SH		 2125 /* Don't be tricky about reusing pages (yet) */
2126 nskb = sky2_rx_alloc(sky2);
2127 if (unlikely(!nskb))
2128 return NULL;
2129
2130 skb = re->skb;
2131 sky2_rx_unmap_skb(sky2->hw->pdev, re);
2132
2133 prefetch(skb->data);
2134 re->skb = nskb;
2135 sky2_rx_map_skb(sky2->hw->pdev, re, hdr_space);
2136
2137 if (skb_shinfo(skb)->nr_frags)
2138 skb_put_frags(skb, hdr_space, length);
2139 else
489b10c1 2140 skb_put(skb, length);
14d0263f
SH		 2141 return skb;
2142}
2143
cd28ab6a
SH		 2144/*
2145 * Receive one packet.
d571b694 2146 * For larger packets, get new buffer.
cd28ab6a 2147 */
497d7c86 2148static struct sk_buff *sky2_receive(struct net_device *dev,
cd28ab6a
SH		 2149 u16 length, u32 status)
2150{
497d7c86 2151 struct sky2_port *sky2 = netdev_priv(dev);
291ea614 2152 struct rx_ring_info *re = sky2->rx_ring + sky2->rx_next;
79e57d32 2153 struct sk_buff *skb = NULL;
d6532232
SH		 2154 u16 count = (status & GMR_FS_LEN) >> 16;
2155
2156#ifdef SKY2_VLAN_TAG_USED
2157 /* Account for vlan tag */
2158 if (sky2->vlgrp && (status & GMR_FS_VLAN))
2159 count -= VLAN_HLEN;
2160#endif
cd28ab6a
SH		 2161
2162 if (unlikely(netif_msg_rx_status(sky2)))
2163 printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n",
497d7c86 2164 dev->name, sky2->rx_next, status, length);
cd28ab6a 2165
793b883e 2166 sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending;
d70cd51a 2167 prefetch(sky2->rx_ring + sky2->rx_next);
cd28ab6a 2168
3b12e014
SH		 2169 /* This chip has hardware problems that generates bogus status.
2170 * So do only marginal checking and expect higher level protocols
2171 * to handle crap frames.
2172 */
2173 if (sky2->hw->chip_id == CHIP_ID_YUKON_FE_P &&
2174 sky2->hw->chip_rev == CHIP_REV_YU_FE2_A0 &&
2175 length != count)
2176 goto okay;
2177
42eeea01 2178 if (status & GMR_FS_ANY_ERR)
cd28ab6a
SH		 2179 goto error;
2180
42eeea01
SH		 2181 if (!(status & GMR_FS_RX_OK))
2182 goto resubmit;
2183
d6532232
SH		 2184 /* if length reported by DMA does not match PHY, packet was truncated */
2185 if (length != count)
3b12e014 2186 goto len_error;
71749531 2187
3b12e014 2188okay:
14d0263f
SH		 2189 if (length < copybreak)
2190 skb = receive_copy(sky2, re, length);
2191 else
2192 skb = receive_new(sky2, re, length);
793b883e 2193resubmit:
14d0263f 2194 sky2_rx_submit(sky2, re);
79e57d32 2195
cd28ab6a
SH		 2196 return skb;
2197
3b12e014 2198len_error:
71749531
SH		 2199 /* Truncation of overlength packets
2200 causes PHY length to not match MAC length */
7138a0f5 2201 ++dev->stats.rx_length_errors;
d6532232 2202 if (netif_msg_rx_err(sky2) && net_ratelimit())
3b12e014
SH		 2203 pr_info(PFX "%s: rx length error: status %#x length %d\n",
2204 dev->name, status, length);
d6532232 2205 goto resubmit;
71749531 2206
cd28ab6a 2207error:
7138a0f5 2208 ++dev->stats.rx_errors;
b6d77734 2209 if (status & GMR_FS_RX_FF_OV) {
7138a0f5 2210 dev->stats.rx_over_errors++;
b6d77734
SH		 2211 goto resubmit;
2212 }
6e15b712 2213
3be92a70 2214 if (netif_msg_rx_err(sky2) && net_ratelimit())
cd28ab6a 2215 printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n",
497d7c86 2216 dev->name, status, length);
793b883e
SH		 2217
2218 if (status & (GMR_FS_LONG_ERR | GMR_FS_UN_SIZE))
7138a0f5 2219 dev->stats.rx_length_errors++;
cd28ab6a 2220 if (status & GMR_FS_FRAGMENT)
7138a0f5 2221 dev->stats.rx_frame_errors++;
cd28ab6a 2222 if (status & GMR_FS_CRC_ERR)
7138a0f5 2223 dev->stats.rx_crc_errors++;
79e57d32 2224
793b883e 2225 goto resubmit;
cd28ab6a
SH		 2226}
2227
e07b1aa8
SH		 2228/* Transmit complete */
2229static inline void sky2_tx_done(struct net_device *dev, u16 last)
13b97b74 2230{
e07b1aa8 2231 struct sky2_port *sky2 = netdev_priv(dev);
302d1252 2232
e07b1aa8 2233 if (netif_running(dev)) {
2bb8c262 2234 netif_tx_lock(dev);
e07b1aa8 2235 sky2_tx_complete(sky2, last);
2bb8c262 2236 netif_tx_unlock(dev);
2224795d 2237 }
cd28ab6a
SH		 2238}
2239
e07b1aa8 2240/* Process status response ring */
26691830 2241static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx)
cd28ab6a 2242{
e07b1aa8 2243 int work_done = 0;
55c9dd35 2244 unsigned rx[2] = { 0, 0 };
a8fd6266 2245
af2a58ac 2246 rmb();
26691830 2247 do {
55c9dd35 2248 struct sky2_port *sky2;
13210ce5 2249 struct sky2_status_le *le = hw->st_le + hw->st_idx;
ab5adecb 2250 unsigned port;
13210ce5 2251 struct net_device *dev;
cd28ab6a 2252 struct sk_buff *skb;
cd28ab6a
SH		 2253 u32 status;
2254 u16 length;
ab5adecb
SH		 2255 u8 opcode = le->opcode;
2256
2257 if (!(opcode & HW_OWNER))
2258 break;
cd28ab6a 2259
cb5d9547 2260 hw->st_idx = RING_NEXT(hw->st_idx, STATUS_RING_SIZE);
bea86103 2261
ab5adecb 2262 port = le->css & CSS_LINK_BIT;
69161611 2263 dev = hw->dev[port];
13210ce5 2264 sky2 = netdev_priv(dev);
f65b138c
SH		 2265 length = le16_to_cpu(le->length);
2266 status = le32_to_cpu(le->status);
cd28ab6a 2267
ab5adecb
SH		 2268 le->opcode = 0;
2269 switch (opcode & ~HW_OWNER) {
cd28ab6a 2270 case OP_RXSTAT:
55c9dd35 2271 ++rx[port];
497d7c86 2272 skb = sky2_receive(dev, length, status);
3225b919 2273 if (unlikely(!skb)) {
7138a0f5 2274 dev->stats.rx_dropped++;
55c9dd35 2275 break;
3225b919 2276 }
13210ce5 2277
69161611 2278 /* This chip reports checksum status differently */
05745c4a 2279 if (hw->flags & SKY2_HW_NEW_LE) {
69161611
SH		 2280 if (sky2->rx_csum &&
2281 (le->css & (CSS_ISIPV4 | CSS_ISIPV6)) &&
2282 (le->css & CSS_TCPUDPCSOK))
2283 skb->ip_summed = CHECKSUM_UNNECESSARY;
2284 else
2285 skb->ip_summed = CHECKSUM_NONE;
2286 }
2287
13210ce5 2288 skb->protocol = eth_type_trans(skb, dev);
7138a0f5
SH		 2289 dev->stats.rx_packets++;
2290 dev->stats.rx_bytes += skb->len;
13210ce5
SH		 2291 dev->last_rx = jiffies;
2292
d1f13708
SH		 2293#ifdef SKY2_VLAN_TAG_USED
2294 if (sky2->vlgrp && (status & GMR_FS_VLAN)) {
2295 vlan_hwaccel_receive_skb(skb,
2296 sky2->vlgrp,
2297 be16_to_cpu(sky2->rx_tag));
2298 } else
2299#endif
cd28ab6a 2300 netif_receive_skb(skb);
13210ce5 2301
22e11703 2302 /* Stop after net poll weight */
13210ce5
SH		 2303 if (++work_done >= to_do)
2304 goto exit_loop;
cd28ab6a
SH		 2305 break;
2306
d1f13708
SH		 2307#ifdef SKY2_VLAN_TAG_USED
2308 case OP_RXVLAN:
2309 sky2->rx_tag = length;
2310 break;
2311
2312 case OP_RXCHKSVLAN:
2313 sky2->rx_tag = length;
2314 /* fall through */
2315#endif
cd28ab6a 2316 case OP_RXCHKS:
87418307
SH		 2317 if (!sky2->rx_csum)
2318 break;
2319
05745c4a
SH		 2320 /* If this happens then driver assuming wrong format */
2321 if (unlikely(hw->flags & SKY2_HW_NEW_LE)) {
2322 if (net_ratelimit())
2323 printk(KERN_NOTICE "%s: unexpected"
2324 " checksum status\n",
2325 dev->name);
69161611 2326 break;
05745c4a 2327 }
69161611 2328
87418307
SH		 2329 /* Both checksum counters are programmed to start at
2330 * the same offset, so unless there is a problem they
2331 * should match. This failure is an early indication that
2332 * hardware receive checksumming won't work.
2333 */
2334 if (likely(status >> 16 == (status & 0xffff))) {
2335 skb = sky2->rx_ring[sky2->rx_next].skb;
2336 skb->ip_summed = CHECKSUM_COMPLETE;
2337 skb->csum = status & 0xffff;
2338 } else {
2339 printk(KERN_NOTICE PFX "%s: hardware receive "
2340 "checksum problem (status = %#x)\n",
2341 dev->name, status);
2342 sky2->rx_csum = 0;
2343 sky2_write32(sky2->hw,
69161611 2344 Q_ADDR(rxqaddr[port], Q_CSR),
87418307
SH		 2345 BMU_DIS_RX_CHKSUM);
2346 }
cd28ab6a
SH		 2347 break;
2348
2349 case OP_TXINDEXLE:
13b97b74 2350 /* TX index reports status for both ports */
f55925d7
SH		 2351 BUILD_BUG_ON(TX_RING_SIZE > 0x1000);
2352 sky2_tx_done(hw->dev[0], status & 0xfff);
e07b1aa8
SH		 2353 if (hw->dev[1])
2354 sky2_tx_done(hw->dev[1],
2355 ((status >> 24) & 0xff)
2356 | (u16)(length & 0xf) << 8);
cd28ab6a
SH		 2357 break;
2358
cd28ab6a
SH		 2359 default:
2360 if (net_ratelimit())
793b883e 2361 printk(KERN_WARNING PFX
ab5adecb 2362 "unknown status opcode 0x%x\n", opcode);
cd28ab6a 2363 }
26691830 2364 } while (hw->st_idx != idx);
cd28ab6a 2365
fe2a24df
SH		 2366 /* Fully processed status ring so clear irq */
2367 sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
2368
13210ce5 2369exit_loop:
55c9dd35
SH		 2370 if (rx[0])
2371 sky2_rx_update(netdev_priv(hw->dev[0]), Q_R1);
22e11703 2372
55c9dd35
SH		 2373 if (rx[1])
2374 sky2_rx_update(netdev_priv(hw->dev[1]), Q_R2);
22e11703 2375
e07b1aa8 2376 return work_done;
cd28ab6a
SH		 2377}
2378
2379static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status)
2380{
2381 struct net_device *dev = hw->dev[port];
2382
3be92a70
SH		 2383 if (net_ratelimit())
2384 printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n",
2385 dev->name, status);
cd28ab6a
SH		 2386
2387 if (status & Y2_IS_PAR_RD1) {
3be92a70
SH		 2388 if (net_ratelimit())
2389 printk(KERN_ERR PFX "%s: ram data read parity error\n",
2390 dev->name);
cd28ab6a
SH		 2391 /* Clear IRQ */
2392 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR);
2393 }
2394
2395 if (status & Y2_IS_PAR_WR1) {
3be92a70
SH		 2396 if (net_ratelimit())
2397 printk(KERN_ERR PFX "%s: ram data write parity error\n",
2398 dev->name);
cd28ab6a
SH		 2399
2400 sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR);
2401 }
2402
2403 if (status & Y2_IS_PAR_MAC1) {
3be92a70
SH		 2404 if (net_ratelimit())
2405 printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name);
cd28ab6a
SH		 2406 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE);
2407 }
2408
2409 if (status & Y2_IS_PAR_RX1) {
3be92a70
SH		 2410 if (net_ratelimit())
2411 printk(KERN_ERR PFX "%s: RX parity error\n", dev->name);
cd28ab6a
SH		 2412 sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR);
2413 }
2414
2415 if (status & Y2_IS_TCP_TXA1) {
3be92a70
SH		 2416 if (net_ratelimit())
2417 printk(KERN_ERR PFX "%s: TCP segmentation error\n",
2418 dev->name);
cd28ab6a
SH		 2419 sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP);
2420 }
2421}
2422
2423static void sky2_hw_intr(struct sky2_hw *hw)
2424{
555382cb 2425 struct pci_dev *pdev = hw->pdev;
cd28ab6a 2426 u32 status = sky2_read32(hw, B0_HWE_ISRC);
555382cb
SH		 2427 u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK);
2428
2429 status &= hwmsk;
cd28ab6a 2430
793b883e 2431 if (status & Y2_IS_TIST_OV)
cd28ab6a 2432 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
cd28ab6a
SH		 2433
2434 if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) {
793b883e
SH		 2435 u16 pci_err;
2436
167f53d0 2437 pci_read_config_word(pdev, PCI_STATUS, &pci_err);
3be92a70 2438 if (net_ratelimit())
555382cb 2439 dev_err(&pdev->dev, "PCI hardware error (0x%x)\n",
b02a9258 2440 pci_err);
cd28ab6a 2441
167f53d0
SH		 2442 pci_write_config_word(pdev, PCI_STATUS,
2443 pci_err | PCI_STATUS_ERROR_BITS);
cd28ab6a
SH		 2444 }
2445
2446 if (status & Y2_IS_PCI_EXP) {
d571b694 2447 /* PCI-Express uncorrectable Error occurred */
555382cb
SH		 2448 int pos = pci_find_aer_capability(hw->pdev);
2449 u32 err;
cd28ab6a 2450
555382cb 2451 pci_read_config_dword(pdev, pos + PCI_ERR_UNCOR_STATUS, &err);
3be92a70 2452 if (net_ratelimit())
555382cb
SH		 2453 dev_err(&pdev->dev, "PCI Express error (0x%x)\n", err);
2454 pci_cleanup_aer_uncorrect_error_status(pdev);
cd28ab6a
SH		 2455 }
2456
2457 if (status & Y2_HWE_L1_MASK)
2458 sky2_hw_error(hw, 0, status);
2459 status >>= 8;
2460 if (status & Y2_HWE_L1_MASK)
2461 sky2_hw_error(hw, 1, status);
2462}
2463
2464static void sky2_mac_intr(struct sky2_hw *hw, unsigned port)
2465{
2466 struct net_device *dev = hw->dev[port];
2467 struct sky2_port *sky2 = netdev_priv(dev);
2468 u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
2469
2470 if (netif_msg_intr(sky2))
2471 printk(KERN_INFO PFX "%s: mac interrupt status 0x%x\n",
2472 dev->name, status);
2473
a3caeada
SH		 2474 if (status & GM_IS_RX_CO_OV)
2475 gma_read16(hw, port, GM_RX_IRQ_SRC);
2476
2477 if (status & GM_IS_TX_CO_OV)
2478 gma_read16(hw, port, GM_TX_IRQ_SRC);
2479
cd28ab6a 2480 if (status & GM_IS_RX_FF_OR) {
7138a0f5 2481 ++dev->stats.rx_fifo_errors;
cd28ab6a
SH		 2482 sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
2483 }
2484
2485 if (status & GM_IS_TX_FF_UR) {
7138a0f5 2486 ++dev->stats.tx_fifo_errors;
cd28ab6a
SH		 2487 sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
2488 }
cd28ab6a
SH		 2489}
2490
40b01727
SH		 2491/* This should never happen it is a bug. */
2492static void sky2_le_error(struct sky2_hw *hw, unsigned port,
2493 u16 q, unsigned ring_size)
d257924e
SH		 2494{
2495 struct net_device *dev = hw->dev[port];
2496 struct sky2_port *sky2 = netdev_priv(dev);
40b01727
SH		 2497 unsigned idx;
2498 const u64 *le = (q == Q_R1 || q == Q_R2)
2499 ? (u64 *) sky2->rx_le : (u64 *) sky2->tx_le;
d257924e 2500
40b01727
SH		 2501 idx = sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_GET_IDX));
2502 printk(KERN_ERR PFX "%s: descriptor error q=%#x get=%u [%llx] put=%u\n",
2503 dev->name, (unsigned) q, idx, (unsigned long long) le[idx],
2504 (unsigned) sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX)));
d257924e 2505
40b01727 2506 sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_IRQ_CHK);
d257924e 2507}
cd28ab6a 2508
75e80683
SH		 2509static int sky2_rx_hung(struct net_device *dev)
2510{
2511 struct sky2_port *sky2 = netdev_priv(dev);
2512 struct sky2_hw *hw = sky2->hw;
2513 unsigned port = sky2->port;
2514 unsigned rxq = rxqaddr[port];
2515 u32 mac_rp = sky2_read32(hw, SK_REG(port, RX_GMF_RP));
2516 u8 mac_lev = sky2_read8(hw, SK_REG(port, RX_GMF_RLEV));
2517 u8 fifo_rp = sky2_read8(hw, Q_ADDR(rxq, Q_RP));
2518 u8 fifo_lev = sky2_read8(hw, Q_ADDR(rxq, Q_RL));
2519
2520 /* If idle and MAC or PCI is stuck */
2521 if (sky2->check.last == dev->last_rx &&
2522 ((mac_rp == sky2->check.mac_rp &&
2523 mac_lev != 0 && mac_lev >= sky2->check.mac_lev) ||
2524 /* Check if the PCI RX hang */
2525 (fifo_rp == sky2->check.fifo_rp &&
2526 fifo_lev != 0 && fifo_lev >= sky2->check.fifo_lev))) {
2527 printk(KERN_DEBUG PFX "%s: hung mac %d:%d fifo %d (%d:%d)\n",
2528 dev->name, mac_lev, mac_rp, fifo_lev, fifo_rp,
2529 sky2_read8(hw, Q_ADDR(rxq, Q_WP)));
2530 return 1;
2531 } else {
2532 sky2->check.last = dev->last_rx;
2533 sky2->check.mac_rp = mac_rp;
2534 sky2->check.mac_lev = mac_lev;
2535 sky2->check.fifo_rp = fifo_rp;
2536 sky2->check.fifo_lev = fifo_lev;
2537 return 0;
2538 }
2539}
2540
32c2c300 2541static void sky2_watchdog(unsigned long arg)
d27ed387 2542{
01bd7564 2543 struct sky2_hw *hw = (struct sky2_hw *) arg;
d27ed387 2544
75e80683 2545 /* Check for lost IRQ once a second */
32c2c300 2546 if (sky2_read32(hw, B0_ISRC)) {
bea3348e 2547 napi_schedule(&hw->napi);
75e80683
SH		 2548 } else {
2549 int i, active = 0;
2550
2551 for (i = 0; i < hw->ports; i++) {
bea3348e 2552 struct net_device *dev = hw->dev[i];
75e80683
SH		 2553 if (!netif_running(dev))
2554 continue;
2555 ++active;
2556
2557 /* For chips with Rx FIFO, check if stuck */
e0c28116 2558 if ((hw->flags & SKY2_HW_FIFO_HANG_CHECK) &&
75e80683
SH		 2559 sky2_rx_hung(dev)) {
2560 pr_info(PFX "%s: receiver hang detected\n",
2561 dev->name);
2562 schedule_work(&hw->restart_work);
2563 return;
2564 }
2565 }
2566
2567 if (active == 0)
2568 return;
32c2c300 2569 }
01bd7564 2570
75e80683 2571 mod_timer(&hw->watchdog_timer, round_jiffies(jiffies + HZ));
d27ed387
SH		 2572}
2573
40b01727
SH		 2574/* Hardware/software error handling */
2575static void sky2_err_intr(struct sky2_hw *hw, u32 status)
cd28ab6a 2576{
40b01727
SH		 2577 if (net_ratelimit())
2578 dev_warn(&hw->pdev->dev, "error interrupt status=%#x\n", status);
cd28ab6a 2579
1e5f1283
SH		 2580 if (status & Y2_IS_HW_ERR)
2581 sky2_hw_intr(hw);
d257924e 2582
1e5f1283
SH		 2583 if (status & Y2_IS_IRQ_MAC1)
2584 sky2_mac_intr(hw, 0);
cd28ab6a 2585
1e5f1283
SH		 2586 if (status & Y2_IS_IRQ_MAC2)
2587 sky2_mac_intr(hw, 1);
cd28ab6a 2588
1e5f1283 2589 if (status & Y2_IS_CHK_RX1)
40b01727 2590 sky2_le_error(hw, 0, Q_R1, RX_LE_SIZE);
d257924e 2591
1e5f1283 2592 if (status & Y2_IS_CHK_RX2)
40b01727 2593 sky2_le_error(hw, 1, Q_R2, RX_LE_SIZE);
d257924e 2594
1e5f1283 2595 if (status & Y2_IS_CHK_TXA1)
40b01727 2596 sky2_le_error(hw, 0, Q_XA1, TX_RING_SIZE);
d257924e 2597
1e5f1283 2598 if (status & Y2_IS_CHK_TXA2)
40b01727
SH		 2599 sky2_le_error(hw, 1, Q_XA2, TX_RING_SIZE);
2600}
2601
bea3348e 2602static int sky2_poll(struct napi_struct *napi, int work_limit)
40b01727 2603{
bea3348e 2604 struct sky2_hw *hw = container_of(napi, struct sky2_hw, napi);
40b01727 2605 u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
6f535763 2606 int work_done = 0;
26691830 2607 u16 idx;
40b01727
SH		 2608
2609 if (unlikely(status & Y2_IS_ERROR))
2610 sky2_err_intr(hw, status);
2611
2612 if (status & Y2_IS_IRQ_PHY1)
2613 sky2_phy_intr(hw, 0);
2614
2615 if (status & Y2_IS_IRQ_PHY2)
2616 sky2_phy_intr(hw, 1);
cd28ab6a 2617
26691830
SH		 2618 while ((idx = sky2_read16(hw, STAT_PUT_IDX)) != hw->st_idx) {
2619 work_done += sky2_status_intr(hw, work_limit - work_done, idx);
6f535763
DM		 2620
2621 if (work_done >= work_limit)
26691830
SH		 2622 goto done;
2623 }
6f535763 2624
26691830
SH		 2625 /* Bug/Errata workaround?
2626 * Need to kick the TX irq moderation timer.
2627 */
2628 if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_START) {
2629 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
2630 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
fe2a24df 2631 }
26691830
SH		 2632 napi_complete(napi);
2633 sky2_read32(hw, B0_Y2_SP_LISR);
2634done:
6f535763 2635
bea3348e 2636 return work_done;
e07b1aa8
SH		 2637}
2638
7d12e780 2639static irqreturn_t sky2_intr(int irq, void *dev_id)
e07b1aa8
SH		 2640{
2641 struct sky2_hw *hw = dev_id;
e07b1aa8
SH		 2642 u32 status;
2643
2644 /* Reading this mask interrupts as side effect */
2645 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
2646 if (status == 0 || status == ~0)
2647 return IRQ_NONE;
793b883e 2648
e07b1aa8 2649 prefetch(&hw->st_le[hw->st_idx]);
bea3348e
SH		 2650
2651 napi_schedule(&hw->napi);
793b883e 2652
cd28ab6a
SH		 2653 return IRQ_HANDLED;
2654}
2655
2656#ifdef CONFIG_NET_POLL_CONTROLLER
2657static void sky2_netpoll(struct net_device *dev)
2658{
2659 struct sky2_port *sky2 = netdev_priv(dev);
2660
bea3348e 2661 napi_schedule(&sky2->hw->napi);
cd28ab6a
SH		 2662}
2663#endif
2664
2665/* Chip internal frequency for clock calculations */
05745c4a 2666static u32 sky2_mhz(const struct sky2_hw *hw)
cd28ab6a 2667{
793b883e 2668 switch (hw->chip_id) {
cd28ab6a 2669 case CHIP_ID_YUKON_EC:
5a5b1ea0 2670 case CHIP_ID_YUKON_EC_U:
93745494 2671 case CHIP_ID_YUKON_EX:
05745c4a
SH		 2672 return 125;
2673
cd28ab6a 2674 case CHIP_ID_YUKON_FE:
05745c4a
SH		 2675 return 100;
2676
2677 case CHIP_ID_YUKON_FE_P:
2678 return 50;
2679
2680 case CHIP_ID_YUKON_XL:
2681 return 156;
2682
2683 default:
2684 BUG();
cd28ab6a
SH		 2685 }
2686}
2687
fb17358f 2688static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us)
cd28ab6a 2689{
fb17358f 2690 return sky2_mhz(hw) * us;
cd28ab6a
SH		 2691}
2692
fb17358f 2693static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk)
cd28ab6a 2694{
fb17358f 2695 return clk / sky2_mhz(hw);
cd28ab6a
SH		 2696}
2697
fb17358f 2698
e3173832 2699static int __devinit sky2_init(struct sky2_hw *hw)
cd28ab6a 2700{
167f53d0 2701 int rc;
b89165f2 2702 u8 t8;
cd28ab6a 2703
167f53d0
SH		 2704 /* Enable all clocks and check for bad PCI access */
2705 rc = pci_write_config_dword(hw->pdev, PCI_DEV_REG3, 0);
2706 if (rc)
2707 return rc;
451af335 2708
cd28ab6a 2709 sky2_write8(hw, B0_CTST, CS_RST_CLR);
08c06d8a 2710
cd28ab6a 2711 hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
ea76e635
SH		 2712 hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
2713
2714 switch(hw->chip_id) {
2715 case CHIP_ID_YUKON_XL:
2716 hw->flags = SKY2_HW_GIGABIT
e0c28116
SH		 2717 | SKY2_HW_NEWER_PHY;
2718 if (hw->chip_rev < 3)
2719 hw->flags |= SKY2_HW_FIFO_HANG_CHECK;
2720
ea76e635
SH		 2721 break;
2722
2723 case CHIP_ID_YUKON_EC_U:
2724 hw->flags = SKY2_HW_GIGABIT
2725 | SKY2_HW_NEWER_PHY
2726 | SKY2_HW_ADV_POWER_CTL;
2727 break;
2728
2729 case CHIP_ID_YUKON_EX:
2730 hw->flags = SKY2_HW_GIGABIT
2731 | SKY2_HW_NEWER_PHY
2732 | SKY2_HW_NEW_LE
2733 | SKY2_HW_ADV_POWER_CTL;
2734
2735 /* New transmit checksum */
2736 if (hw->chip_rev != CHIP_REV_YU_EX_B0)
2737 hw->flags |= SKY2_HW_AUTO_TX_SUM;
2738 break;
2739
2740 case CHIP_ID_YUKON_EC:
2741 /* This rev is really old, and requires untested workarounds */
2742 if (hw->chip_rev == CHIP_REV_YU_EC_A1) {
2743 dev_err(&hw->pdev->dev, "unsupported revision Yukon-EC rev A1\n");
2744 return -EOPNOTSUPP;
2745 }
e0c28116 2746 hw->flags = SKY2_HW_GIGABIT | SKY2_HW_FIFO_HANG_CHECK;
ea76e635
SH		 2747 break;
2748
2749 case CHIP_ID_YUKON_FE:
ea76e635
SH		 2750 break;
2751
05745c4a
SH		 2752 case CHIP_ID_YUKON_FE_P:
2753 hw->flags = SKY2_HW_NEWER_PHY
2754 | SKY2_HW_NEW_LE
2755 | SKY2_HW_AUTO_TX_SUM
2756 | SKY2_HW_ADV_POWER_CTL;
2757 break;
ea76e635 2758 default:
b02a9258
SH		 2759 dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
2760 hw->chip_id);
cd28ab6a
SH		 2761 return -EOPNOTSUPP;
2762 }
2763
ea76e635
SH		 2764 hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
2765 if (hw->pmd_type == 'L' || hw->pmd_type == 'S' || hw->pmd_type == 'P')
2766 hw->flags |= SKY2_HW_FIBRE_PHY;
290d4de5 2767
290d4de5 2768
e3173832
SH		 2769 hw->ports = 1;
2770 t8 = sky2_read8(hw, B2_Y2_HW_RES);
2771 if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
2772 if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC))
2773 ++hw->ports;
2774 }
2775
2776 return 0;
2777}
2778
2779static void sky2_reset(struct sky2_hw *hw)
2780{
555382cb 2781 struct pci_dev *pdev = hw->pdev;
e3173832 2782 u16 status;
555382cb
SH		 2783 int i, cap;
2784 u32 hwe_mask = Y2_HWE_ALL_MASK;
e3173832 2785
cd28ab6a 2786 /* disable ASF */
4f44d8ba
SH		 2787 if (hw->chip_id == CHIP_ID_YUKON_EX) {
2788 status = sky2_read16(hw, HCU_CCSR);
2789 status &= ~(HCU_CCSR_AHB_RST | HCU_CCSR_CPU_RST_MODE |
2790 HCU_CCSR_UC_STATE_MSK);
2791 sky2_write16(hw, HCU_CCSR, status);
2792 } else
2793 sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
2794 sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE);
cd28ab6a
SH		 2795
2796 /* do a SW reset */
2797 sky2_write8(hw, B0_CTST, CS_RST_SET);
2798 sky2_write8(hw, B0_CTST, CS_RST_CLR);
2799
ac93a394
SH		 2800 /* allow writes to PCI config */
2801 sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2802
cd28ab6a 2803 /* clear PCI errors, if any */
167f53d0
SH		 2804 pci_read_config_word(pdev, PCI_STATUS, &status);
2805 status |= PCI_STATUS_ERROR_BITS;
2806 pci_write_config_word(pdev, PCI_STATUS, status);
cd28ab6a
SH		 2807
2808 sky2_write8(hw, B0_CTST, CS_MRST_CLR);
2809
555382cb
SH		 2810 cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
2811 if (cap) {
2812 /* Check for advanced error reporting */
2813 pci_cleanup_aer_uncorrect_error_status(pdev);
2814 pci_cleanup_aer_correct_error_status(pdev);
2815
2816 /* If error bit is stuck on ignore it */
2817 if (sky2_read32(hw, B0_HWE_ISRC) & Y2_IS_PCI_EXP)
2818 dev_info(&pdev->dev, "ignoring stuck error report bit\n");
7bd656d1 2819
555382cb
SH		 2820 else if (pci_enable_pcie_error_reporting(pdev))
2821 hwe_mask |= Y2_IS_PCI_EXP;
2822 }
cd28ab6a 2823
ae306cca 2824 sky2_power_on(hw);
cd28ab6a
SH		 2825
2826 for (i = 0; i < hw->ports; i++) {
2827 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
2828 sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
69161611
SH		 2829
2830 if (hw->chip_id == CHIP_ID_YUKON_EX)
2831 sky2_write16(hw, SK_REG(i, GMAC_CTRL),
2832 GMC_BYP_MACSECRX_ON | GMC_BYP_MACSECTX_ON
2833 | GMC_BYP_RETR_ON);
cd28ab6a
SH		 2834 }
2835
793b883e
SH		 2836 /* Clear I2C IRQ noise */
2837 sky2_write32(hw, B2_I2C_IRQ, 1);
cd28ab6a
SH		 2838
2839 /* turn off hardware timer (unused) */
2840 sky2_write8(hw, B2_TI_CTRL, TIM_STOP);
2841 sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
793b883e 2842
cd28ab6a
SH		 2843 sky2_write8(hw, B0_Y2LED, LED_STAT_ON);
2844
69634ee7
SH		 2845 /* Turn off descriptor polling */
2846 sky2_write32(hw, B28_DPT_CTRL, DPT_STOP);
cd28ab6a
SH		 2847
2848 /* Turn off receive timestamp */
2849 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP);
793b883e 2850 sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
cd28ab6a
SH		 2851
2852 /* enable the Tx Arbiters */
2853 for (i = 0; i < hw->ports; i++)
2854 sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
2855
2856 /* Initialize ram interface */
2857 for (i = 0; i < hw->ports; i++) {
793b883e 2858 sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR);
cd28ab6a
SH		 2859
2860 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53);
2861 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53);
2862 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53);
2863 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53);
2864 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53);
2865 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53);
2866 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53);
2867 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53);
2868 sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53);
2869 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53);
2870 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53);
2871 sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53);
2872 }
2873
555382cb 2874 sky2_write32(hw, B0_HWE_IMSK, hwe_mask);
cd28ab6a 2875
cd28ab6a 2876 for (i = 0; i < hw->ports; i++)
d3bcfbeb 2877 sky2_gmac_reset(hw, i);
cd28ab6a 2878
cd28ab6a
SH		 2879 memset(hw->st_le, 0, STATUS_LE_BYTES);
2880 hw->st_idx = 0;
2881
2882 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET);
2883 sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR);
2884
2885 sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma);
793b883e 2886 sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32);
cd28ab6a
SH		 2887
2888 /* Set the list last index */
793b883e 2889 sky2_write16(hw, STAT_LAST_IDX, STATUS_RING_SIZE - 1);
cd28ab6a 2890
290d4de5
SH		 2891 sky2_write16(hw, STAT_TX_IDX_TH, 10);
2892 sky2_write8(hw, STAT_FIFO_WM, 16);
cd28ab6a 2893
290d4de5
SH		 2894 /* set Status-FIFO ISR watermark */
2895 if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0)
2896 sky2_write8(hw, STAT_FIFO_ISR_WM, 4);
2897 else
2898 sky2_write8(hw, STAT_FIFO_ISR_WM, 16);
cd28ab6a 2899
290d4de5 2900 sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 1000));
77b3d6a2
SH		 2901 sky2_write32(hw, STAT_ISR_TIMER_INI, sky2_us2clk(hw, 20));
2902 sky2_write32(hw, STAT_LEV_TIMER_INI, sky2_us2clk(hw, 100));
cd28ab6a 2903
793b883e 2904 /* enable status unit */
cd28ab6a
SH		 2905 sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON);
2906
2907 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
2908 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
2909 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
e3173832
SH		 2910}
2911
81906791
SH		 2912static void sky2_restart(struct work_struct *work)
2913{
2914 struct sky2_hw *hw = container_of(work, struct sky2_hw, restart_work);
2915 struct net_device *dev;
2916 int i, err;
2917
81906791
SH		 2918 rtnl_lock();
2919 sky2_write32(hw, B0_IMSK, 0);
2920 sky2_read32(hw, B0_IMSK);
6de16237 2921 napi_disable(&hw->napi);
81906791 2922
81906791
SH		 2923 for (i = 0; i < hw->ports; i++) {
2924 dev = hw->dev[i];
2925 if (netif_running(dev))
2926 sky2_down(dev);
2927 }
2928
2929 sky2_reset(hw);
2930 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
6de16237 2931 napi_enable(&hw->napi);
81906791
SH		 2932
2933 for (i = 0; i < hw->ports; i++) {
2934 dev = hw->dev[i];
2935 if (netif_running(dev)) {
2936 err = sky2_up(dev);
2937 if (err) {
2938 printk(KERN_INFO PFX "%s: could not restart %d\n",
2939 dev->name, err);
2940 dev_close(dev);
2941 }
2942 }
2943 }
2944
81906791
SH		 2945 rtnl_unlock();
2946}
2947
e3173832
SH		 2948static inline u8 sky2_wol_supported(const struct sky2_hw *hw)
2949{
2950 return sky2_is_copper(hw) ? (WAKE_PHY | WAKE_MAGIC) : 0;
2951}
2952
2953static void sky2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2954{
2955 const struct sky2_port *sky2 = netdev_priv(dev);
2956
2957 wol->supported = sky2_wol_supported(sky2->hw);
2958 wol->wolopts = sky2->wol;
2959}
2960
2961static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2962{
2963 struct sky2_port *sky2 = netdev_priv(dev);
2964 struct sky2_hw *hw = sky2->hw;
cd28ab6a 2965
e3173832
SH		 2966 if (wol->wolopts & ~sky2_wol_supported(sky2->hw))
2967 return -EOPNOTSUPP;
2968
2969 sky2->wol = wol->wolopts;
2970
05745c4a
SH		 2971 if (hw->chip_id == CHIP_ID_YUKON_EC_U ||
2972 hw->chip_id == CHIP_ID_YUKON_EX ||
2973 hw->chip_id == CHIP_ID_YUKON_FE_P)
e3173832
SH		 2974 sky2_write32(hw, B0_CTST, sky2->wol
2975 ? Y2_HW_WOL_ON : Y2_HW_WOL_OFF);
2976
2977 if (!netif_running(dev))
2978 sky2_wol_init(sky2);
cd28ab6a
SH		 2979 return 0;
2980}
2981
28bd181a 2982static u32 sky2_supported_modes(const struct sky2_hw *hw)
cd28ab6a 2983{
b89165f2
SH		 2984 if (sky2_is_copper(hw)) {
2985 u32 modes = SUPPORTED_10baseT_Half
2986 | SUPPORTED_10baseT_Full
2987 | SUPPORTED_100baseT_Half
2988 | SUPPORTED_100baseT_Full
2989 | SUPPORTED_Autoneg | SUPPORTED_TP;
cd28ab6a 2990
ea76e635 2991 if (hw->flags & SKY2_HW_GIGABIT)
cd28ab6a 2992 modes |= SUPPORTED_1000baseT_Half
b89165f2
SH		 2993 | SUPPORTED_1000baseT_Full;
2994 return modes;
cd28ab6a 2995 } else
b89165f2
SH		 2996 return SUPPORTED_1000baseT_Half
2997 | SUPPORTED_1000baseT_Full
2998 | SUPPORTED_Autoneg
2999 | SUPPORTED_FIBRE;
cd28ab6a
SH		 3000}
3001
793b883e 3002static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
cd28ab6a
SH		 3003{
3004 struct sky2_port *sky2 = netdev_priv(dev);
3005 struct sky2_hw *hw = sky2->hw;
3006
3007 ecmd->transceiver = XCVR_INTERNAL;
3008 ecmd->supported = sky2_supported_modes(hw);
3009 ecmd->phy_address = PHY_ADDR_MARV;
b89165f2 3010 if (sky2_is_copper(hw)) {
cd28ab6a 3011 ecmd->port = PORT_TP;
b89165f2
SH		 3012 ecmd->speed = sky2->speed;
3013 } else {
3014 ecmd->speed = SPEED_1000;
cd28ab6a 3015 ecmd->port = PORT_FIBRE;
b89165f2 3016 }
cd28ab6a
SH		 3017
3018 ecmd->advertising = sky2->advertising;
3019 ecmd->autoneg = sky2->autoneg;
cd28ab6a
SH		 3020 ecmd->duplex = sky2->duplex;
3021 return 0;
3022}
3023
3024static int sky2_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
3025{
3026 struct sky2_port *sky2 = netdev_priv(dev);
3027 const struct sky2_hw *hw = sky2->hw;
3028 u32 supported = sky2_supported_modes(hw);
3029
3030 if (ecmd->autoneg == AUTONEG_ENABLE) {
3031 ecmd->advertising = supported;
3032 sky2->duplex = -1;
3033 sky2->speed = -1;
3034 } else {
3035 u32 setting;
3036
793b883e 3037 switch (ecmd->speed) {
cd28ab6a
SH		 3038 case SPEED_1000:
3039 if (ecmd->duplex == DUPLEX_FULL)
3040 setting = SUPPORTED_1000baseT_Full;
3041 else if (ecmd->duplex == DUPLEX_HALF)
3042 setting = SUPPORTED_1000baseT_Half;
3043 else
3044 return -EINVAL;
3045 break;
3046 case SPEED_100:
3047 if (ecmd->duplex == DUPLEX_FULL)
3048 setting = SUPPORTED_100baseT_Full;
3049 else if (ecmd->duplex == DUPLEX_HALF)
3050 setting = SUPPORTED_100baseT_Half;
3051 else
3052 return -EINVAL;
3053 break;
3054
3055 case SPEED_10:
3056 if (ecmd->duplex == DUPLEX_FULL)
3057 setting = SUPPORTED_10baseT_Full;
3058 else if (ecmd->duplex == DUPLEX_HALF)
3059 setting = SUPPORTED_10baseT_Half;
3060 else
3061 return -EINVAL;
3062 break;
3063 default:
3064 return -EINVAL;
3065 }
3066
3067 if ((setting & supported) == 0)
3068 return -EINVAL;
3069
3070 sky2->speed = ecmd->speed;
3071 sky2->duplex = ecmd->duplex;
3072 }
3073
3074 sky2->autoneg = ecmd->autoneg;
3075 sky2->advertising = ecmd->advertising;
3076
d1b139c0 3077 if (netif_running(dev)) {
1b537565 3078 sky2_phy_reinit(sky2);
d1b139c0
SH		 3079 sky2_set_multicast(dev);
3080 }
cd28ab6a
SH		 3081
3082 return 0;
3083}
3084
3085static void sky2_get_drvinfo(struct net_device *dev,
3086 struct ethtool_drvinfo *info)
3087{
3088 struct sky2_port *sky2 = netdev_priv(dev);
3089
3090 strcpy(info->driver, DRV_NAME);
3091 strcpy(info->version, DRV_VERSION);
3092 strcpy(info->fw_version, "N/A");
3093 strcpy(info->bus_info, pci_name(sky2->hw->pdev));
3094}
3095
3096static const struct sky2_stat {
793b883e
SH		 3097 char name[ETH_GSTRING_LEN];
3098 u16 offset;
cd28ab6a
SH		 3099} sky2_stats[] = {
3100 { "tx_bytes", GM_TXO_OK_HI },
3101 { "rx_bytes", GM_RXO_OK_HI },
3102 { "tx_broadcast", GM_TXF_BC_OK },
3103 { "rx_broadcast", GM_RXF_BC_OK },
3104 { "tx_multicast", GM_TXF_MC_OK },
3105 { "rx_multicast", GM_RXF_MC_OK },
3106 { "tx_unicast", GM_TXF_UC_OK },
3107 { "rx_unicast", GM_RXF_UC_OK },
3108 { "tx_mac_pause", GM_TXF_MPAUSE },
3109 { "rx_mac_pause", GM_RXF_MPAUSE },
eadfa7dd 3110 { "collisions", GM_TXF_COL },
cd28ab6a
SH		 3111 { "late_collision",GM_TXF_LAT_COL },
3112 { "aborted", GM_TXF_ABO_COL },
eadfa7dd 3113 { "single_collisions", GM_TXF_SNG_COL },
cd28ab6a 3114 { "multi_collisions", GM_TXF_MUL_COL },
eadfa7dd 3115
d2604540 3116 { "rx_short", GM_RXF_SHT },
cd28ab6a 3117 { "rx_runt", GM_RXE_FRAG },
eadfa7dd
SH		 3118 { "rx_64_byte_packets", GM_RXF_64B },
3119 { "rx_65_to_127_byte_packets", GM_RXF_127B },
3120 { "rx_128_to_255_byte_packets", GM_RXF_255B },
3121 { "rx_256_to_511_byte_packets", GM_RXF_511B },
3122 { "rx_512_to_1023_byte_packets", GM_RXF_1023B },
3123 { "rx_1024_to_1518_byte_packets", GM_RXF_1518B },
3124 { "rx_1518_to_max_byte_packets", GM_RXF_MAX_SZ },
cd28ab6a 3125 { "rx_too_long", GM_RXF_LNG_ERR },
eadfa7dd
SH		 3126 { "rx_fifo_overflow", GM_RXE_FIFO_OV },
3127 { "rx_jabber", GM_RXF_JAB_PKT },
cd28ab6a 3128 { "rx_fcs_error", GM_RXF_FCS_ERR },
eadfa7dd
SH		 3129
3130 { "tx_64_byte_packets", GM_TXF_64B },
3131 { "tx_65_to_127_byte_packets", GM_TXF_127B },
3132 { "tx_128_to_255_byte_packets", GM_TXF_255B },
3133 { "tx_256_to_511_byte_packets", GM_TXF_511B },
3134 { "tx_512_to_1023_byte_packets", GM_TXF_1023B },
3135 { "tx_1024_to_1518_byte_packets", GM_TXF_1518B },
3136 { "tx_1519_to_max_byte_packets", GM_TXF_MAX_SZ },
3137 { "tx_fifo_underrun", GM_TXE_FIFO_UR },
cd28ab6a
SH		 3138};
3139
cd28ab6a
SH		 3140static u32 sky2_get_rx_csum(struct net_device *dev)
3141{
3142 struct sky2_port *sky2 = netdev_priv(dev);
3143
3144 return sky2->rx_csum;
3145}
3146
3147static int sky2_set_rx_csum(struct net_device *dev, u32 data)
3148{
3149 struct sky2_port *sky2 = netdev_priv(dev);
3150
3151 sky2->rx_csum = data;
793b883e 3152
cd28ab6a
SH		 3153 sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR),
3154 data ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
3155
3156 return 0;
3157}
3158
3159static u32 sky2_get_msglevel(struct net_device *netdev)
3160{
3161 struct sky2_port *sky2 = netdev_priv(netdev);
3162 return sky2->msg_enable;
3163}
3164
9a7ae0a9
SH		 3165static int sky2_nway_reset(struct net_device *dev)
3166{
3167 struct sky2_port *sky2 = netdev_priv(dev);
9a7ae0a9 3168
16ad91e1 3169 if (!netif_running(dev) || sky2->autoneg != AUTONEG_ENABLE)
9a7ae0a9
SH		 3170 return -EINVAL;
3171
1b537565 3172 sky2_phy_reinit(sky2);
d1b139c0 3173 sky2_set_multicast(dev);
9a7ae0a9
SH		 3174
3175 return 0;
3176}
3177
793b883e 3178static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count)
cd28ab6a
SH		 3179{
3180 struct sky2_hw *hw = sky2->hw;
3181 unsigned port = sky2->port;
3182 int i;
3183
3184 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
793b883e 3185 | (u64) gma_read32(hw, port, GM_TXO_OK_LO);
cd28ab6a 3186 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
793b883e 3187 | (u64) gma_read32(hw, port, GM_RXO_OK_LO);
cd28ab6a 3188
793b883e 3189 for (i = 2; i < count; i++)
cd28ab6a
SH		 3190 data[i] = (u64) gma_read32(hw, port, sky2_stats[i].offset);
3191}
3192
cd28ab6a
SH		 3193static void sky2_set_msglevel(struct net_device *netdev, u32 value)
3194{
3195 struct sky2_port *sky2 = netdev_priv(netdev);
3196 sky2->msg_enable = value;
3197}
3198
b9f2c044 3199static int sky2_get_sset_count(struct net_device *dev, int sset)
cd28ab6a 3200{
b9f2c044
JG		 3201 switch (sset) {
3202 case ETH_SS_STATS:
3203 return ARRAY_SIZE(sky2_stats);
3204 default:
3205 return -EOPNOTSUPP;
3206 }
cd28ab6a
SH		 3207}
3208
3209static void sky2_get_ethtool_stats(struct net_device *dev,
793b883e 3210 struct ethtool_stats *stats, u64 * data)
cd28ab6a
SH		 3211{
3212 struct sky2_port *sky2 = netdev_priv(dev);
3213
793b883e 3214 sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats));
cd28ab6a
SH		 3215}
3216
793b883e 3217static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data)
cd28ab6a
SH		 3218{
3219 int i;
3220
3221 switch (stringset) {
3222 case ETH_SS_STATS:
3223 for (i = 0; i < ARRAY_SIZE(sky2_stats); i++)
3224 memcpy(data + i * ETH_GSTRING_LEN,
3225 sky2_stats[i].name, ETH_GSTRING_LEN);
3226 break;
3227 }
3228}
3229
cd28ab6a
SH		 3230static int sky2_set_mac_address(struct net_device *dev, void *p)
3231{
3232 struct sky2_port *sky2 = netdev_priv(dev);
a8ab1ec0
SH		 3233 struct sky2_hw *hw = sky2->hw;
3234 unsigned port = sky2->port;
3235 const struct sockaddr *addr = p;
cd28ab6a
SH		 3236
3237 if (!is_valid_ether_addr(addr->sa_data))
3238 return -EADDRNOTAVAIL;
3239
cd28ab6a 3240 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
a8ab1ec0 3241 memcpy_toio(hw->regs + B2_MAC_1 + port * 8,
cd28ab6a 3242 dev->dev_addr, ETH_ALEN);
a8ab1ec0 3243 memcpy_toio(hw->regs + B2_MAC_2 + port * 8,
cd28ab6a 3244 dev->dev_addr, ETH_ALEN);
1b537565 3245
a8ab1ec0
SH		 3246 /* virtual address for data */
3247 gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
3248
3249 /* physical address: used for pause frames */
3250 gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
1b537565
SH		 3251
3252 return 0;
cd28ab6a
SH		 3253}
3254
a052b52f
SH		 3255static void inline sky2_add_filter(u8 filter[8], const u8 *addr)
3256{
3257 u32 bit;
3258
3259 bit = ether_crc(ETH_ALEN, addr) & 63;
3260 filter[bit >> 3] |= 1 << (bit & 7);
3261}
3262
cd28ab6a
SH		 3263static void sky2_set_multicast(struct net_device *dev)
3264{
3265 struct sky2_port *sky2 = netdev_priv(dev);
3266 struct sky2_hw *hw = sky2->hw;
3267 unsigned port = sky2->port;
3268 struct dev_mc_list *list = dev->mc_list;
3269 u16 reg;
3270 u8 filter[8];
a052b52f
SH		 3271 int rx_pause;
3272 static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 };
cd28ab6a 3273
a052b52f 3274 rx_pause = (sky2->flow_status == FC_RX || sky2->flow_status == FC_BOTH);
cd28ab6a
SH		 3275 memset(filter, 0, sizeof(filter));
3276
3277 reg = gma_read16(hw, port, GM_RX_CTRL);
3278 reg |= GM_RXCR_UCF_ENA;
3279
d571b694 3280 if (dev->flags & IFF_PROMISC) /* promiscuous */
cd28ab6a 3281 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
a052b52f 3282 else if (dev->flags & IFF_ALLMULTI)
cd28ab6a 3283 memset(filter, 0xff, sizeof(filter));
a052b52f 3284 else if (dev->mc_count == 0 && !rx_pause)
cd28ab6a
SH		 3285 reg &= ~GM_RXCR_MCF_ENA;
3286 else {
3287 int i;
3288 reg |= GM_RXCR_MCF_ENA;
3289
a052b52f
SH		 3290 if (rx_pause)
3291 sky2_add_filter(filter, pause_mc_addr);
3292
3293 for (i = 0; list && i < dev->mc_count; i++, list = list->next)
3294 sky2_add_filter(filter, list->dmi_addr);
cd28ab6a
SH		 3295 }
3296
cd28ab6a 3297 gma_write16(hw, port, GM_MC_ADDR_H1,
793b883e 3298 (u16) filter[0] | ((u16) filter[1] << 8));
cd28ab6a 3299 gma_write16(hw, port, GM_MC_ADDR_H2,
793b883e 3300 (u16) filter[2] | ((u16) filter[3] << 8));
cd28ab6a 3301 gma_write16(hw, port, GM_MC_ADDR_H3,
793b883e 3302 (u16) filter[4] | ((u16) filter[5] << 8));
cd28ab6a 3303 gma_write16(hw, port, GM_MC_ADDR_H4,
793b883e 3304 (u16) filter[6] | ((u16) filter[7] << 8));
cd28ab6a
SH		 3305
3306 gma_write16(hw, port, GM_RX_CTRL, reg);
3307}
3308
3309/* Can have one global because blinking is controlled by
3310 * ethtool and that is always under RTNL mutex
3311 */
91c86df5 3312static void sky2_led(struct sky2_hw *hw, unsigned port, int on)
cd28ab6a 3313{
793b883e
SH		 3314 u16 pg;
3315
793b883e
SH		 3316 switch (hw->chip_id) {
3317 case CHIP_ID_YUKON_XL:
3318 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
3319 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
3320 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
3321 on ? (PHY_M_LEDC_LOS_CTRL(1) |
3322 PHY_M_LEDC_INIT_CTRL(7) |
3323 PHY_M_LEDC_STA1_CTRL(7) |
3324 PHY_M_LEDC_STA0_CTRL(7))
3325 : 0);
3326
3327 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
3328 break;
3329
3330 default:
3331 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
0efdf262
SH		 3332 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
3333 on ? PHY_M_LED_ALL : 0);
793b883e 3334 }
cd28ab6a
SH		 3335}
3336
3337/* blink LED's for finding board */
3338static int sky2_phys_id(struct net_device *dev, u32 data)
3339{
3340 struct sky2_port *sky2 = netdev_priv(dev);
3341 struct sky2_hw *hw = sky2->hw;
3342 unsigned port = sky2->port;
793b883e 3343 u16 ledctrl, ledover = 0;
cd28ab6a 3344 long ms;
91c86df5 3345 int interrupted;
cd28ab6a
SH		 3346 int onoff = 1;
3347
793b883e 3348 if (!data || data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ))
cd28ab6a
SH		 3349 ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT);
3350 else
3351 ms = data * 1000;
3352
3353 /* save initial values */
e07b1aa8 3354 spin_lock_bh(&sky2->phy_lock);
793b883e
SH		 3355 if (hw->chip_id == CHIP_ID_YUKON_XL) {
3356 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
3357 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
3358 ledctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
3359 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
3360 } else {
3361 ledctrl = gm_phy_read(hw, port, PHY_MARV_LED_CTRL);
3362 ledover = gm_phy_read(hw, port, PHY_MARV_LED_OVER);
3363 }
cd28ab6a 3364
91c86df5
SH		 3365 interrupted = 0;
3366 while (!interrupted && ms > 0) {
cd28ab6a
SH		 3367 sky2_led(hw, port, onoff);
3368 onoff = !onoff;
3369
e07b1aa8 3370 spin_unlock_bh(&sky2->phy_lock);
91c86df5 3371 interrupted = msleep_interruptible(250);
e07b1aa8 3372 spin_lock_bh(&sky2->phy_lock);
91c86df5 3373
cd28ab6a
SH		 3374 ms -= 250;
3375 }
3376
3377 /* resume regularly scheduled programming */
793b883e
SH		 3378 if (hw->chip_id == CHIP_ID_YUKON_XL) {
3379 u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
3380 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
3381 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ledctrl);
3382 gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
3383 } else {
3384 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
3385 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
3386 }
e07b1aa8 3387 spin_unlock_bh(&sky2->phy_lock);
cd28ab6a
SH		 3388
3389 return 0;
3390}
3391
3392static void sky2_get_pauseparam(struct net_device *dev,
3393 struct ethtool_pauseparam *ecmd)
3394{
3395 struct sky2_port *sky2 = netdev_priv(dev);
3396
16ad91e1
SH		 3397 switch (sky2->flow_mode) {
3398 case FC_NONE:
3399 ecmd->tx_pause = ecmd->rx_pause = 0;
3400 break;
3401 case FC_TX:
3402 ecmd->tx_pause = 1, ecmd->rx_pause = 0;
3403 break;
3404 case FC_RX:
3405 ecmd->tx_pause = 0, ecmd->rx_pause = 1;
3406 break;
3407 case FC_BOTH:
3408 ecmd->tx_pause = ecmd->rx_pause = 1;
3409 }
3410
cd28ab6a
SH		 3411 ecmd->autoneg = sky2->autoneg;
3412}
3413
3414static int sky2_set_pauseparam(struct net_device *dev,
3415 struct ethtool_pauseparam *ecmd)
3416{
3417 struct sky2_port *sky2 = netdev_priv(dev);
cd28ab6a
SH		 3418
3419 sky2->autoneg = ecmd->autoneg;
16ad91e1 3420 sky2->flow_mode = sky2_flow(ecmd->rx_pause, ecmd->tx_pause);
cd28ab6a 3421
16ad91e1
SH		 3422 if (netif_running(dev))
3423 sky2_phy_reinit(sky2);
cd28ab6a 3424
2eaba1a2 3425 return 0;
cd28ab6a
SH		 3426}
3427
fb17358f
SH		 3428static int sky2_get_coalesce(struct net_device *dev,
3429 struct ethtool_coalesce *ecmd)
3430{
3431 struct sky2_port *sky2 = netdev_priv(dev);
3432 struct sky2_hw *hw = sky2->hw;
3433
3434 if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_STOP)
3435 ecmd->tx_coalesce_usecs = 0;
3436 else {
3437 u32 clks = sky2_read32(hw, STAT_TX_TIMER_INI);
3438 ecmd->tx_coalesce_usecs = sky2_clk2us(hw, clks);
3439 }
3440 ecmd->tx_max_coalesced_frames = sky2_read16(hw, STAT_TX_IDX_TH);
3441
3442 if (sky2_read8(hw, STAT_LEV_TIMER_CTRL) == TIM_STOP)
3443 ecmd->rx_coalesce_usecs = 0;
3444 else {
3445 u32 clks = sky2_read32(hw, STAT_LEV_TIMER_INI);
3446 ecmd->rx_coalesce_usecs = sky2_clk2us(hw, clks);
3447 }
3448 ecmd->rx_max_coalesced_frames = sky2_read8(hw, STAT_FIFO_WM);
3449
3450 if (sky2_read8(hw, STAT_ISR_TIMER_CTRL) == TIM_STOP)
3451 ecmd->rx_coalesce_usecs_irq = 0;
3452 else {
3453 u32 clks = sky2_read32(hw, STAT_ISR_TIMER_INI);
3454 ecmd->rx_coalesce_usecs_irq = sky2_clk2us(hw, clks);
3455 }
3456
3457 ecmd->rx_max_coalesced_frames_irq = sky2_read8(hw, STAT_FIFO_ISR_WM);
3458
3459 return 0;
3460}
3461
3462/* Note: this affect both ports */
3463static int sky2_set_coalesce(struct net_device *dev,
3464 struct ethtool_coalesce *ecmd)
3465{
3466 struct sky2_port *sky2 = netdev_priv(dev);
3467 struct sky2_hw *hw = sky2->hw;
77b3d6a2 3468 const u32 tmax = sky2_clk2us(hw, 0x0ffffff);
fb17358f 3469
77b3d6a2
SH		 3470 if (ecmd->tx_coalesce_usecs > tmax ||
3471 ecmd->rx_coalesce_usecs > tmax ||
3472 ecmd->rx_coalesce_usecs_irq > tmax)
fb17358f
SH		 3473 return -EINVAL;
3474
ff81fbbe 3475 if (ecmd->tx_max_coalesced_frames >= TX_RING_SIZE-1)
fb17358f 3476 return -EINVAL;
ff81fbbe 3477 if (ecmd->rx_max_coalesced_frames > RX_MAX_PENDING)
fb17358f 3478 return -EINVAL;
ff81fbbe 3479 if (ecmd->rx_max_coalesced_frames_irq >RX_MAX_PENDING)
fb17358f
SH		 3480 return -EINVAL;
3481
3482 if (ecmd->tx_coalesce_usecs == 0)
3483 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
3484 else {
3485 sky2_write32(hw, STAT_TX_TIMER_INI,
3486 sky2_us2clk(hw, ecmd->tx_coalesce_usecs));
3487 sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
3488 }
3489 sky2_write16(hw, STAT_TX_IDX_TH, ecmd->tx_max_coalesced_frames);
3490
3491 if (ecmd->rx_coalesce_usecs == 0)
3492 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_STOP);
3493 else {
3494 sky2_write32(hw, STAT_LEV_TIMER_INI,
3495 sky2_us2clk(hw, ecmd->rx_coalesce_usecs));
3496 sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
3497 }
3498 sky2_write8(hw, STAT_FIFO_WM, ecmd->rx_max_coalesced_frames);
3499
3500 if (ecmd->rx_coalesce_usecs_irq == 0)
3501 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_STOP);
3502 else {
d28d4870 3503 sky2_write32(hw, STAT_ISR_TIMER_INI,
fb17358f
SH		 3504 sky2_us2clk(hw, ecmd->rx_coalesce_usecs_irq));
3505 sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
3506 }
3507 sky2_write8(hw, STAT_FIFO_ISR_WM, ecmd->rx_max_coalesced_frames_irq);
3508 return 0;
3509}
3510
793b883e
SH		 3511static void sky2_get_ringparam(struct net_device *dev,
3512 struct ethtool_ringparam *ering)
3513{
3514 struct sky2_port *sky2 = netdev_priv(dev);
3515
3516 ering->rx_max_pending = RX_MAX_PENDING;
3517 ering->rx_mini_max_pending = 0;
3518 ering->rx_jumbo_max_pending = 0;
3519 ering->tx_max_pending = TX_RING_SIZE - 1;
3520
3521 ering->rx_pending = sky2->rx_pending;
3522 ering->rx_mini_pending = 0;
3523 ering->rx_jumbo_pending = 0;
3524 ering->tx_pending = sky2->tx_pending;
3525}
3526
3527static int sky2_set_ringparam(struct net_device *dev,
3528 struct ethtool_ringparam *ering)
3529{
3530 struct sky2_port *sky2 = netdev_priv(dev);
3531 int err = 0;
3532
3533 if (ering->rx_pending > RX_MAX_PENDING ||
3534 ering->rx_pending < 8 ||
3535 ering->tx_pending < MAX_SKB_TX_LE ||
3536 ering->tx_pending > TX_RING_SIZE - 1)
3537 return -EINVAL;
3538
3539 if (netif_running(dev))
3540 sky2_down(dev);
3541
3542 sky2->rx_pending = ering->rx_pending;
3543 sky2->tx_pending = ering->tx_pending;
3544
1b537565 3545 if (netif_running(dev)) {
793b883e 3546 err = sky2_up(dev);
1b537565
SH		 3547 if (err)
3548 dev_close(dev);
6ed995bb
SH		 3549 else
3550 sky2_set_multicast(dev);
1b537565 3551 }
793b883e
SH		 3552
3553 return err;
3554}
3555
793b883e
SH		 3556static int sky2_get_regs_len(struct net_device *dev)
3557{
6e4cbb34 3558 return 0x4000;
793b883e
SH		 3559}
3560
3561/*
3562 * Returns copy of control register region
3ead5db7 3563 * Note: ethtool_get_regs always provides full size (16k) buffer
793b883e
SH		 3564 */
3565static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs,
3566 void *p)
3567{
3568 const struct sky2_port *sky2 = netdev_priv(dev);
793b883e 3569 const void __iomem *io = sky2->hw->regs;
295b54c4 3570 unsigned int b;
793b883e
SH		 3571
3572 regs->version = 1;
793b883e 3573
295b54c4
SH		 3574 for (b = 0; b < 128; b++) {
3575 /* This complicated switch statement is to make sure and
3576 * only access regions that are unreserved.
3577 * Some blocks are only valid on dual port cards.
3578 * and block 3 has some special diagnostic registers that
3579 * are poison.
3580 */
3581 switch (b) {
3582 case 3:
3583 /* skip diagnostic ram region */
3584 memcpy_fromio(p + 0x10, io + 0x10, 128 - 0x10);
3585 break;
3ead5db7 3586
295b54c4
SH		 3587 /* dual port cards only */
3588 case 5: /* Tx Arbiter 2 */
3589 case 9: /* RX2 */
3590 case 14 ... 15: /* TX2 */
3591 case 17: case 19: /* Ram Buffer 2 */
3592 case 22 ... 23: /* Tx Ram Buffer 2 */
3593 case 25: /* Rx MAC Fifo 1 */
3594 case 27: /* Tx MAC Fifo 2 */
3595 case 31: /* GPHY 2 */
3596 case 40 ... 47: /* Pattern Ram 2 */
3597 case 52: case 54: /* TCP Segmentation 2 */
3598 case 112 ... 116: /* GMAC 2 */
3599 if (sky2->hw->ports == 1)
3600 goto reserved;
3601 /* fall through */
3602 case 0: /* Control */
3603 case 2: /* Mac address */
3604 case 4: /* Tx Arbiter 1 */
3605 case 7: /* PCI express reg */
3606 case 8: /* RX1 */
3607 case 12 ... 13: /* TX1 */
3608 case 16: case 18:/* Rx Ram Buffer 1 */
3609 case 20 ... 21: /* Tx Ram Buffer 1 */
3610 case 24: /* Rx MAC Fifo 1 */
3611 case 26: /* Tx MAC Fifo 1 */
3612 case 28 ... 29: /* Descriptor and status unit */
3613 case 30: /* GPHY 1*/
3614 case 32 ... 39: /* Pattern Ram 1 */
3615 case 48: case 50: /* TCP Segmentation 1 */
3616 case 56 ... 60: /* PCI space */
3617 case 80 ... 84: /* GMAC 1 */
3618 memcpy_fromio(p, io, 128);
3619 break;
3620 default:
3621reserved:
3622 memset(p, 0, 128);
3623 }
3ead5db7 3624
295b54c4
SH		 3625 p += 128;
3626 io += 128;
3627 }
793b883e 3628}
cd28ab6a 3629
b628ed98
SH		 3630/* In order to do Jumbo packets on these chips, need to turn off the
3631 * transmit store/forward. Therefore checksum offload won't work.
3632 */
3633static int no_tx_offload(struct net_device *dev)
3634{
3635 const struct sky2_port *sky2 = netdev_priv(dev);
3636 const struct sky2_hw *hw = sky2->hw;
3637
69161611 3638 return dev->mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_EC_U;
b628ed98
SH		 3639}
3640
3641static int sky2_set_tx_csum(struct net_device *dev, u32 data)
3642{
3643 if (data && no_tx_offload(dev))
3644 return -EINVAL;
3645
3646 return ethtool_op_set_tx_csum(dev, data);
3647}
3648
3649
3650static int sky2_set_tso(struct net_device *dev, u32 data)
3651{
3652 if (data && no_tx_offload(dev))
3653 return -EINVAL;
3654
3655 return ethtool_op_set_tso(dev, data);
3656}
3657
f4331a6d
SH		 3658static int sky2_get_eeprom_len(struct net_device *dev)
3659{
3660 struct sky2_port *sky2 = netdev_priv(dev);
3661 u16 reg2;
3662
167f53d0 3663 pci_read_config_word(sky2->hw->pdev, PCI_DEV_REG2, &reg2);
f4331a6d
SH		 3664 return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
3665}
3666
167f53d0 3667static u32 sky2_vpd_read(struct pci_dev *pdev, int cap, u16 offset)
f4331a6d 3668{
167f53d0 3669 u32 val;
f4331a6d 3670
167f53d0
SH		 3671 pci_write_config_word(pdev, cap + PCI_VPD_ADDR, offset);
3672
3673 do {
3674 pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset);
3675 } while (!(offset & PCI_VPD_ADDR_F));
3676
3677 pci_read_config_dword(pdev, cap + PCI_VPD_DATA, &val);
3678 return val;
f4331a6d
SH		 3679}
3680
167f53d0 3681static void sky2_vpd_write(struct pci_dev *pdev, int cap, u16 offset, u32 val)
f4331a6d 3682{
167f53d0
SH		 3683 pci_write_config_word(pdev, cap + PCI_VPD_DATA, val);
3684 pci_write_config_dword(pdev, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F);
f4331a6d 3685 do {
167f53d0
SH		 3686 pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset);
3687 } while (offset & PCI_VPD_ADDR_F);
f4331a6d
SH		 3688}
3689
3690static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
3691 u8 *data)
3692{
3693 struct sky2_port *sky2 = netdev_priv(dev);
3694 int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
3695 int length = eeprom->len;
3696 u16 offset = eeprom->offset;
3697
3698 if (!cap)
3699 return -EINVAL;
3700
3701 eeprom->magic = SKY2_EEPROM_MAGIC;
3702
3703 while (length > 0) {
167f53d0 3704 u32 val = sky2_vpd_read(sky2->hw->pdev, cap, offset);
f4331a6d
SH		 3705 int n = min_t(int, length, sizeof(val));
3706
3707 memcpy(data, &val, n);
3708 length -= n;
3709 data += n;
3710 offset += n;
3711 }
3712 return 0;
3713}
3714
3715static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
3716 u8 *data)
3717{
3718 struct sky2_port *sky2 = netdev_priv(dev);
3719 int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
3720 int length = eeprom->len;
3721 u16 offset = eeprom->offset;
3722
3723 if (!cap)
3724 return -EINVAL;
3725
3726 if (eeprom->magic != SKY2_EEPROM_MAGIC)
3727 return -EINVAL;
3728
3729 while (length > 0) {
3730 u32 val;
3731 int n = min_t(int, length, sizeof(val));
3732
3733 if (n < sizeof(val))
167f53d0 3734 val = sky2_vpd_read(sky2->hw->pdev, cap, offset);
f4331a6d
SH		 3735 memcpy(&val, data, n);
3736
167f53d0 3737 sky2_vpd_write(sky2->hw->pdev, cap, offset, val);
f4331a6d
SH		 3738
3739 length -= n;
3740 data += n;
3741 offset += n;
3742 }
3743 return 0;
3744}
3745
3746
7282d491 3747static const struct ethtool_ops sky2_ethtool_ops = {
f4331a6d
SH		 3748 .get_settings = sky2_get_settings,
3749 .set_settings = sky2_set_settings,
3750 .get_drvinfo = sky2_get_drvinfo,
3751 .get_wol = sky2_get_wol,
3752 .set_wol = sky2_set_wol,
3753 .get_msglevel = sky2_get_msglevel,
3754 .set_msglevel = sky2_set_msglevel,
3755 .nway_reset = sky2_nway_reset,
3756 .get_regs_len = sky2_get_regs_len,
3757 .get_regs = sky2_get_regs,
3758 .get_link = ethtool_op_get_link,
3759 .get_eeprom_len = sky2_get_eeprom_len,
3760 .get_eeprom = sky2_get_eeprom,
3761 .set_eeprom = sky2_set_eeprom,
f4331a6d 3762 .set_sg = ethtool_op_set_sg,
f4331a6d 3763 .set_tx_csum = sky2_set_tx_csum,
f4331a6d
SH		 3764 .set_tso = sky2_set_tso,
3765 .get_rx_csum = sky2_get_rx_csum,
3766 .set_rx_csum = sky2_set_rx_csum,
3767 .get_strings = sky2_get_strings,
3768 .get_coalesce = sky2_get_coalesce,
3769 .set_coalesce = sky2_set_coalesce,
3770 .get_ringparam = sky2_get_ringparam,
3771 .set_ringparam = sky2_set_ringparam,
cd28ab6a
SH		 3772 .get_pauseparam = sky2_get_pauseparam,
3773 .set_pauseparam = sky2_set_pauseparam,
f4331a6d 3774 .phys_id = sky2_phys_id,
b9f2c044 3775 .get_sset_count = sky2_get_sset_count,
cd28ab6a
SH		 3776 .get_ethtool_stats = sky2_get_ethtool_stats,
3777};
3778
3cf26753
SH		 3779#ifdef CONFIG_SKY2_DEBUG
3780
3781static struct dentry *sky2_debug;
3782
3783static int sky2_debug_show(struct seq_file *seq, void *v)
3784{
3785 struct net_device *dev = seq->private;
3786 const struct sky2_port *sky2 = netdev_priv(dev);
bea3348e 3787 struct sky2_hw *hw = sky2->hw;
3cf26753
SH		 3788 unsigned port = sky2->port;
3789 unsigned idx, last;
3790 int sop;
3791
3792 if (!netif_running(dev))
3793 return -ENETDOWN;
3794
3795 seq_printf(seq, "IRQ src=%x mask=%x control=%x\n",
3796 sky2_read32(hw, B0_ISRC),
3797 sky2_read32(hw, B0_IMSK),
3798 sky2_read32(hw, B0_Y2_SP_ICR));
3799
bea3348e 3800 napi_disable(&hw->napi);
3cf26753
SH		 3801 last = sky2_read16(hw, STAT_PUT_IDX);
3802
3803 if (hw->st_idx == last)
3804 seq_puts(seq, "Status ring (empty)\n");
3805 else {
3806 seq_puts(seq, "Status ring\n");
3807 for (idx = hw->st_idx; idx != last && idx < STATUS_RING_SIZE;
3808 idx = RING_NEXT(idx, STATUS_RING_SIZE)) {
3809 const struct sky2_status_le *le = hw->st_le + idx;
3810 seq_printf(seq, "[%d] %#x %d %#x\n",
3811 idx, le->opcode, le->length, le->status);
3812 }
3813 seq_puts(seq, "\n");
3814 }
3815
3816 seq_printf(seq, "Tx ring pending=%u...%u report=%d done=%d\n",
3817 sky2->tx_cons, sky2->tx_prod,
3818 sky2_read16(hw, port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX),
3819 sky2_read16(hw, Q_ADDR(txqaddr[port], Q_DONE)));
3820
3821 /* Dump contents of tx ring */
3822 sop = 1;
3823 for (idx = sky2->tx_next; idx != sky2->tx_prod && idx < TX_RING_SIZE;
3824 idx = RING_NEXT(idx, TX_RING_SIZE)) {
3825 const struct sky2_tx_le *le = sky2->tx_le + idx;
3826 u32 a = le32_to_cpu(le->addr);
3827
3828 if (sop)
3829 seq_printf(seq, "%u:", idx);
3830 sop = 0;
3831
3832 switch(le->opcode & ~HW_OWNER) {
3833 case OP_ADDR64:
3834 seq_printf(seq, " %#x:", a);
3835 break;
3836 case OP_LRGLEN:
3837 seq_printf(seq, " mtu=%d", a);
3838 break;
3839 case OP_VLAN:
3840 seq_printf(seq, " vlan=%d", be16_to_cpu(le->length));
3841 break;
3842 case OP_TCPLISW:
3843 seq_printf(seq, " csum=%#x", a);
3844 break;
3845 case OP_LARGESEND:
3846 seq_printf(seq, " tso=%#x(%d)", a, le16_to_cpu(le->length));
3847 break;
3848 case OP_PACKET:
3849 seq_printf(seq, " %#x(%d)", a, le16_to_cpu(le->length));
3850 break;
3851 case OP_BUFFER:
3852 seq_printf(seq, " frag=%#x(%d)", a, le16_to_cpu(le->length));
3853 break;
3854 default:
3855 seq_printf(seq, " op=%#x,%#x(%d)", le->opcode,
3856 a, le16_to_cpu(le->length));
3857 }
3858
3859 if (le->ctrl & EOP) {
3860 seq_putc(seq, '\n');
3861 sop = 1;
3862 }
3863 }
3864
3865 seq_printf(seq, "\nRx ring hw get=%d put=%d last=%d\n",
3866 sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_GET_IDX)),
3867 last = sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_PUT_IDX)),
3868 sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_LAST_IDX)));
3869
bea3348e 3870 napi_enable(&hw->napi);
3cf26753
SH		 3871 return 0;
3872}
3873
3874static int sky2_debug_open(struct inode *inode, struct file *file)
3875{
3876 return single_open(file, sky2_debug_show, inode->i_private);
3877}
3878
3879static const struct file_operations sky2_debug_fops = {
3880 .owner = THIS_MODULE,
3881 .open = sky2_debug_open,
3882 .read = seq_read,
3883 .llseek = seq_lseek,
3884 .release = single_release,
3885};
3886
3887/*
3888 * Use network device events to create/remove/rename
3889 * debugfs file entries
3890 */
3891static int sky2_device_event(struct notifier_block *unused,
3892 unsigned long event, void *ptr)
3893{
3894 struct net_device *dev = ptr;
5b296bc9 3895 struct sky2_port *sky2 = netdev_priv(dev);
3cf26753 3896
5b296bc9
SH		 3897 if (dev->open != sky2_up || !sky2_debug)
3898 return NOTIFY_DONE;
3cf26753 3899
5b296bc9
SH		 3900 switch(event) {
3901 case NETDEV_CHANGENAME:
3902 if (sky2->debugfs) {
3903 sky2->debugfs = debugfs_rename(sky2_debug, sky2->debugfs,
3904 sky2_debug, dev->name);
3905 }
3906 break;
3cf26753 3907
5b296bc9
SH		 3908 case NETDEV_GOING_DOWN:
3909 if (sky2->debugfs) {
3910 printk(KERN_DEBUG PFX "%s: remove debugfs\n",
3911 dev->name);
3912 debugfs_remove(sky2->debugfs);
3913 sky2->debugfs = NULL;
3cf26753 3914 }
5b296bc9
SH		 3915 break;
3916
3917 case NETDEV_UP:
3918 sky2->debugfs = debugfs_create_file(dev->name, S_IRUGO,
3919 sky2_debug, dev,
3920 &sky2_debug_fops);
3921 if (IS_ERR(sky2->debugfs))
3922 sky2->debugfs = NULL;
3cf26753
SH		 3923 }
3924
3925 return NOTIFY_DONE;
3926}
3927
3928static struct notifier_block sky2_notifier = {
3929 .notifier_call = sky2_device_event,
3930};
3931
3932
3933static __init void sky2_debug_init(void)
3934{
3935 struct dentry *ent;
3936
3937 ent = debugfs_create_dir("sky2", NULL);
3938 if (!ent || IS_ERR(ent))
3939 return;
3940
3941 sky2_debug = ent;
3942 register_netdevice_notifier(&sky2_notifier);
3943}
3944
3945static __exit void sky2_debug_cleanup(void)
3946{
3947 if (sky2_debug) {
3948 unregister_netdevice_notifier(&sky2_notifier);
3949 debugfs_remove(sky2_debug);
3950 sky2_debug = NULL;
3951 }
3952}
3953
3954#else
3955#define sky2_debug_init()
3956#define sky2_debug_cleanup()
3957#endif
3958
3959
cd28ab6a
SH		 3960/* Initialize network device */
3961static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
e3173832
SH		 3962 unsigned port,
3963 int highmem, int wol)
cd28ab6a
SH		 3964{
3965 struct sky2_port *sky2;
3966 struct net_device *dev = alloc_etherdev(sizeof(*sky2));
3967
3968 if (!dev) {
898eb71c 3969 dev_err(&hw->pdev->dev, "etherdev alloc failed\n");
cd28ab6a
SH		 3970 return NULL;
3971 }
3972
cd28ab6a 3973 SET_NETDEV_DEV(dev, &hw->pdev->dev);
ef743d33 3974 dev->irq = hw->pdev->irq;
cd28ab6a
SH		 3975 dev->open = sky2_up;
3976 dev->stop = sky2_down;
ef743d33 3977 dev->do_ioctl = sky2_ioctl;
cd28ab6a 3978 dev->hard_start_xmit = sky2_xmit_frame;
cd28ab6a
SH		 3979 dev->set_multicast_list = sky2_set_multicast;
3980 dev->set_mac_address = sky2_set_mac_address;
3981 dev->change_mtu = sky2_change_mtu;
3982 SET_ETHTOOL_OPS(dev, &sky2_ethtool_ops);
3983 dev->tx_timeout = sky2_tx_timeout;
3984 dev->watchdog_timeo = TX_WATCHDOG;
cd28ab6a 3985#ifdef CONFIG_NET_POLL_CONTROLLER
bea3348e 3986 dev->poll_controller = sky2_netpoll;
cd28ab6a 3987#endif
cd28ab6a
SH		 3988
3989 sky2 = netdev_priv(dev);
3990 sky2->netdev = dev;
3991 sky2->hw = hw;
3992 sky2->msg_enable = netif_msg_init(debug, default_msg);
3993
cd28ab6a
SH		 3994 /* Auto speed and flow control */
3995 sky2->autoneg = AUTONEG_ENABLE;
16ad91e1
SH		 3996 sky2->flow_mode = FC_BOTH;
3997
cd28ab6a
SH		 3998 sky2->duplex = -1;
3999 sky2->speed = -1;
4000 sky2->advertising = sky2_supported_modes(hw);
ee7abb04 4001 sky2->rx_csum = 1;
e3173832 4002 sky2->wol = wol;
75d070c5 4003
e07b1aa8 4004 spin_lock_init(&sky2->phy_lock);
793b883e 4005 sky2->tx_pending = TX_DEF_PENDING;
290d4de5 4006 sky2->rx_pending = RX_DEF_PENDING;
cd28ab6a
SH		 4007
4008 hw->dev[port] = dev;
4009
4010 sky2->port = port;
4011
4a50a876 4012 dev->features |= NETIF_F_TSO | NETIF_F_IP_CSUM | NETIF_F_SG;
cd28ab6a
SH		 4013 if (highmem)
4014 dev->features |= NETIF_F_HIGHDMA;
cd28ab6a 4015
d1f13708 4016#ifdef SKY2_VLAN_TAG_USED
d6c9bc1e
SH		 4017 /* The workaround for FE+ status conflicts with VLAN tag detection. */
4018 if (!(sky2->hw->chip_id == CHIP_ID_YUKON_FE_P &&
4019 sky2->hw->chip_rev == CHIP_REV_YU_FE2_A0)) {
4020 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
4021 dev->vlan_rx_register = sky2_vlan_rx_register;
4022 }
d1f13708
SH		 4023#endif
4024
cd28ab6a 4025 /* read the mac address */
793b883e 4026 memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN);
2995bfb7 4027 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
cd28ab6a 4028
cd28ab6a
SH		 4029 return dev;
4030}
4031
28bd181a 4032static void __devinit sky2_show_addr(struct net_device *dev)
cd28ab6a
SH		 4033{
4034 const struct sky2_port *sky2 = netdev_priv(dev);
0795af57 4035 DECLARE_MAC_BUF(mac);
cd28ab6a
SH		 4036
4037 if (netif_msg_probe(sky2))
0795af57
JP		 4038 printk(KERN_INFO PFX "%s: addr %s\n",
4039 dev->name, print_mac(mac, dev->dev_addr));
cd28ab6a
SH		 4040}
4041
fb2690a9 4042/* Handle software interrupt used during MSI test */
7d12e780 4043static irqreturn_t __devinit sky2_test_intr(int irq, void *dev_id)
fb2690a9
SH		 4044{
4045 struct sky2_hw *hw = dev_id;
4046 u32 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
4047
4048 if (status == 0)
4049 return IRQ_NONE;
4050
4051 if (status & Y2_IS_IRQ_SW) {
ea76e635 4052 hw->flags |= SKY2_HW_USE_MSI;
fb2690a9
SH		 4053 wake_up(&hw->msi_wait);
4054 sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
4055 }
4056 sky2_write32(hw, B0_Y2_SP_ICR, 2);
4057
4058 return IRQ_HANDLED;
4059}
4060
4061/* Test interrupt path by forcing a a software IRQ */
4062static int __devinit sky2_test_msi(struct sky2_hw *hw)
4063{
4064 struct pci_dev *pdev = hw->pdev;
4065 int err;
4066
bb507fe1
SH		 4067 init_waitqueue_head (&hw->msi_wait);
4068
fb2690a9
SH		 4069 sky2_write32(hw, B0_IMSK, Y2_IS_IRQ_SW);
4070
b0a20ded 4071 err = request_irq(pdev->irq, sky2_test_intr, 0, DRV_NAME, hw);
fb2690a9 4072 if (err) {
b02a9258 4073 dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
fb2690a9
SH		 4074 return err;
4075 }
4076
fb2690a9 4077 sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ);
bb507fe1 4078 sky2_read8(hw, B0_CTST);
fb2690a9 4079
ea76e635 4080 wait_event_timeout(hw->msi_wait, (hw->flags & SKY2_HW_USE_MSI), HZ/10);
fb2690a9 4081
ea76e635 4082 if (!(hw->flags & SKY2_HW_USE_MSI)) {
fb2690a9 4083 /* MSI test failed, go back to INTx mode */
b02a9258
SH		 4084 dev_info(&pdev->dev, "No interrupt generated using MSI, "
4085 "switching to INTx mode.\n");
fb2690a9
SH		 4086
4087 err = -EOPNOTSUPP;
4088 sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
4089 }
4090
4091 sky2_write32(hw, B0_IMSK, 0);
2bffc23a 4092 sky2_read32(hw, B0_IMSK);
fb2690a9
SH		 4093
4094 free_irq(pdev->irq, hw);
4095
4096 return err;
4097}
4098
e3173832
SH		 4099static int __devinit pci_wake_enabled(struct pci_dev *dev)
4100{
4101 int pm = pci_find_capability(dev, PCI_CAP_ID_PM);
4102 u16 value;
4103
4104 if (!pm)
4105 return 0;
4106 if (pci_read_config_word(dev, pm + PCI_PM_CTRL, &value))
4107 return 0;
4108 return value & PCI_PM_CTRL_PME_ENABLE;
4109}
4110
cd28ab6a
SH		 4111static int __devinit sky2_probe(struct pci_dev *pdev,
4112 const struct pci_device_id *ent)
4113{
7f60c64b 4114 struct net_device *dev;
cd28ab6a 4115 struct sky2_hw *hw;
e3173832 4116 int err, using_dac = 0, wol_default;
cd28ab6a 4117
793b883e
SH		 4118 err = pci_enable_device(pdev);
4119 if (err) {
b02a9258 4120 dev_err(&pdev->dev, "cannot enable PCI device\n");
cd28ab6a
SH		 4121 goto err_out;
4122 }
4123
793b883e
SH		 4124 err = pci_request_regions(pdev, DRV_NAME);
4125 if (err) {
b02a9258 4126 dev_err(&pdev->dev, "cannot obtain PCI resources\n");
44a1d2e5 4127 goto err_out_disable;
cd28ab6a
SH		 4128 }
4129
4130 pci_set_master(pdev);
4131
d1f3d4dd
SH		 4132 if (sizeof(dma_addr_t) > sizeof(u32) &&
4133 !(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) {
4134 using_dac = 1;
4135 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
4136 if (err < 0) {
b02a9258
SH		 4137 dev_err(&pdev->dev, "unable to obtain 64 bit DMA "
4138 "for consistent allocations\n");
d1f3d4dd
SH		 4139 goto err_out_free_regions;
4140 }
d1f3d4dd 4141 } else {
cd28ab6a
SH		 4142 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
4143 if (err) {
b02a9258 4144 dev_err(&pdev->dev, "no usable DMA configuration\n");
cd28ab6a
SH		 4145 goto err_out_free_regions;
4146 }
4147 }
d1f3d4dd 4148
e3173832
SH		 4149 wol_default = pci_wake_enabled(pdev) ? WAKE_MAGIC : 0;
4150
cd28ab6a 4151 err = -ENOMEM;
6aad85d6 4152 hw = kzalloc(sizeof(*hw), GFP_KERNEL);
cd28ab6a 4153 if (!hw) {
b02a9258 4154 dev_err(&pdev->dev, "cannot allocate hardware struct\n");
cd28ab6a
SH		 4155 goto err_out_free_regions;
4156 }
4157
cd28ab6a 4158 hw->pdev = pdev;
cd28ab6a
SH		 4159
4160 hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
4161 if (!hw->regs) {
b02a9258 4162 dev_err(&pdev->dev, "cannot map device registers\n");
cd28ab6a
SH		 4163 goto err_out_free_hw;
4164 }
4165
56a645cc 4166#ifdef __BIG_ENDIAN
f65b138c
SH		 4167 /* The sk98lin vendor driver uses hardware byte swapping but
4168 * this driver uses software swapping.
4169 */
56a645cc
SH		 4170 {
4171 u32 reg;
167f53d0 4172 pci_read_config_dword(pdev,PCI_DEV_REG2, &reg);
f65b138c 4173 reg &= ~PCI_REV_DESC;
167f53d0 4174 pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
56a645cc
SH		 4175 }
4176#endif
4177
08c06d8a 4178 /* ring for status responses */
167f53d0 4179 hw->st_le = pci_alloc_consistent(pdev, STATUS_LE_BYTES, &hw->st_dma);
08c06d8a
SH		 4180 if (!hw->st_le)
4181 goto err_out_iounmap;
4182
e3173832 4183 err = sky2_init(hw);
cd28ab6a 4184 if (err)
793b883e 4185 goto err_out_iounmap;
cd28ab6a 4186
b02a9258 4187 dev_info(&pdev->dev, "v%s addr 0x%llx irq %d Yukon-%s (0x%x) rev %d\n",
7c7459d1
GKH		 4188 DRV_VERSION, (unsigned long long)pci_resource_start(pdev, 0),
4189 pdev->irq, yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL],
793b883e 4190 hw->chip_id, hw->chip_rev);
cd28ab6a 4191
e3173832
SH		 4192 sky2_reset(hw);
4193
4194 dev = sky2_init_netdev(hw, 0, using_dac, wol_default);
7f60c64b 4195 if (!dev) {
4196 err = -ENOMEM;
cd28ab6a 4197 goto err_out_free_pci;
7f60c64b 4198 }
cd28ab6a 4199
9fa1b1f3
SH		 4200 if (!disable_msi && pci_enable_msi(pdev) == 0) {
4201 err = sky2_test_msi(hw);
4202 if (err == -EOPNOTSUPP)
4203 pci_disable_msi(pdev);
4204 else if (err)
4205 goto err_out_free_netdev;
4206 }
4207
793b883e
SH		 4208 err = register_netdev(dev);
4209 if (err) {
b02a9258 4210 dev_err(&pdev->dev, "cannot register net device\n");
cd28ab6a
SH		 4211 goto err_out_free_netdev;
4212 }
4213
6de16237
SH		 4214 netif_napi_add(dev, &hw->napi, sky2_poll, NAPI_WEIGHT);
4215
ea76e635
SH		 4216 err = request_irq(pdev->irq, sky2_intr,
4217 (hw->flags & SKY2_HW_USE_MSI) ? 0 : IRQF_SHARED,
b0a20ded 4218 dev->name, hw);
9fa1b1f3 4219 if (err) {
b02a9258 4220 dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
9fa1b1f3
SH		 4221 goto err_out_unregister;
4222 }
4223 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
6de16237 4224 napi_enable(&hw->napi);
9fa1b1f3 4225
cd28ab6a
SH		 4226 sky2_show_addr(dev);
4227
7f60c64b 4228 if (hw->ports > 1) {
4229 struct net_device *dev1;
4230
e3173832 4231 dev1 = sky2_init_netdev(hw, 1, using_dac, wol_default);
b02a9258
SH		 4232 if (!dev1)
4233 dev_warn(&pdev->dev, "allocation for second device failed\n");
4234 else if ((err = register_netdev(dev1))) {
4235 dev_warn(&pdev->dev,
4236 "register of second port failed (%d)\n", err);
cd28ab6a
SH		 4237 hw->dev[1] = NULL;
4238 free_netdev(dev1);
b02a9258
SH		 4239 } else
4240 sky2_show_addr(dev1);
cd28ab6a
SH		 4241 }
4242
32c2c300 4243 setup_timer(&hw->watchdog_timer, sky2_watchdog, (unsigned long) hw);
81906791
SH		 4244 INIT_WORK(&hw->restart_work, sky2_restart);
4245
793b883e
SH		 4246 pci_set_drvdata(pdev, hw);
4247
cd28ab6a
SH		 4248 return 0;
4249
793b883e 4250err_out_unregister:
ea76e635 4251 if (hw->flags & SKY2_HW_USE_MSI)
b0a20ded 4252 pci_disable_msi(pdev);
793b883e 4253 unregister_netdev(dev);
cd28ab6a
SH		 4254err_out_free_netdev:
4255 free_netdev(dev);
cd28ab6a 4256err_out_free_pci:
793b883e 4257 sky2_write8(hw, B0_CTST, CS_RST_SET);
167f53d0 4258 pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
cd28ab6a
SH		 4259err_out_iounmap:
4260 iounmap(hw->regs);
4261err_out_free_hw:
4262 kfree(hw);
4263err_out_free_regions:
4264 pci_release_regions(pdev);
44a1d2e5 4265err_out_disable:
cd28ab6a 4266 pci_disable_device(pdev);
cd28ab6a 4267err_out:
549a68c3 4268 pci_set_drvdata(pdev, NULL);
cd28ab6a
SH		 4269 return err;
4270}
4271
4272static void __devexit sky2_remove(struct pci_dev *pdev)
4273{
793b883e 4274 struct sky2_hw *hw = pci_get_drvdata(pdev);
6de16237 4275 int i;
cd28ab6a 4276
793b883e 4277 if (!hw)
cd28ab6a
SH		 4278 return;
4279
32c2c300 4280 del_timer_sync(&hw->watchdog_timer);
6de16237 4281 cancel_work_sync(&hw->restart_work);
d27ed387 4282
b877fe28 4283 for (i = hw->ports-1; i >= 0; --i)
6de16237 4284 unregister_netdev(hw->dev[i]);
81906791 4285
d27ed387 4286 sky2_write32(hw, B0_IMSK, 0);
cd28ab6a 4287
ae306cca
SH		 4288 sky2_power_aux(hw);
4289
cd28ab6a 4290 sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
793b883e 4291 sky2_write8(hw, B0_CTST, CS_RST_SET);
5afa0a9c 4292 sky2_read8(hw, B0_CTST);
cd28ab6a
SH		 4293
4294 free_irq(pdev->irq, hw);
ea76e635 4295 if (hw->flags & SKY2_HW_USE_MSI)
b0a20ded 4296 pci_disable_msi(pdev);
793b883e 4297 pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
cd28ab6a
SH		 4298 pci_release_regions(pdev);
4299 pci_disable_device(pdev);
793b883e 4300
b877fe28 4301 for (i = hw->ports-1; i >= 0; --i)
6de16237
SH		 4302 free_netdev(hw->dev[i]);
4303
cd28ab6a
SH		 4304 iounmap(hw->regs);
4305 kfree(hw);
5afa0a9c 4306
cd28ab6a
SH		 4307 pci_set_drvdata(pdev, NULL);
4308}
4309
4310#ifdef CONFIG_PM
4311static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
4312{
793b883e 4313 struct sky2_hw *hw = pci_get_drvdata(pdev);
e3173832 4314 int i, wol = 0;
cd28ab6a 4315
549a68c3
SH		 4316 if (!hw)
4317 return 0;
4318
f05267e7 4319 for (i = 0; i < hw->ports; i++) {
cd28ab6a 4320 struct net_device *dev = hw->dev[i];
e3173832 4321 struct sky2_port *sky2 = netdev_priv(dev);
cd28ab6a 4322
e3173832 4323 if (netif_running(dev))
5afa0a9c 4324 sky2_down(dev);
e3173832
SH		 4325
4326 if (sky2->wol)
4327 sky2_wol_init(sky2);
4328
4329 wol |= sky2->wol;
cd28ab6a
SH		 4330 }
4331
8ab8fca2 4332 sky2_write32(hw, B0_IMSK, 0);
6de16237 4333 napi_disable(&hw->napi);
ae306cca 4334 sky2_power_aux(hw);
e3173832 4335
d374c1c1 4336 pci_save_state(pdev);
e3173832 4337 pci_enable_wake(pdev, pci_choose_state(pdev, state), wol);
ae306cca
SH		 4338 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4339
2ccc99b7 4340 return 0;
cd28ab6a
SH		 4341}
4342
4343static int sky2_resume(struct pci_dev *pdev)
4344{
793b883e 4345 struct sky2_hw *hw = pci_get_drvdata(pdev);
08c06d8a 4346 int i, err;
cd28ab6a 4347
549a68c3
SH		 4348 if (!hw)
4349 return 0;
4350
ae306cca
SH		 4351 err = pci_set_power_state(pdev, PCI_D0);
4352 if (err)
4353 goto out;
4354
4355 err = pci_restore_state(pdev);
4356 if (err)
4357 goto out;
4358
cd28ab6a 4359 pci_enable_wake(pdev, PCI_D0, 0);
1ad5b4a5
SH		 4360
4361 /* Re-enable all clocks */
05745c4a
SH		 4362 if (hw->chip_id == CHIP_ID_YUKON_EX ||
4363 hw->chip_id == CHIP_ID_YUKON_EC_U ||
4364 hw->chip_id == CHIP_ID_YUKON_FE_P)
167f53d0 4365 pci_write_config_dword(pdev, PCI_DEV_REG3, 0);
1ad5b4a5 4366
e3173832 4367 sky2_reset(hw);
8ab8fca2 4368 sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
6de16237 4369 napi_enable(&hw->napi);
8ab8fca2 4370
f05267e7 4371 for (i = 0; i < hw->ports; i++) {
cd28ab6a 4372 struct net_device *dev = hw->dev[i];
6a5706b9 4373 if (netif_running(dev)) {
08c06d8a
SH		 4374 err = sky2_up(dev);
4375 if (err) {
4376 printk(KERN_ERR PFX "%s: could not up: %d\n",
4377 dev->name, err);
4378 dev_close(dev);
eb35cf60 4379 goto out;
5afa0a9c 4380 }
d1b139c0
SH		 4381
4382 sky2_set_multicast(dev);
cd28ab6a
SH		 4383 }
4384 }
eb35cf60 4385
ae306cca 4386 return 0;
08c06d8a 4387out:
b02a9258 4388 dev_err(&pdev->dev, "resume failed (%d)\n", err);
ae306cca 4389 pci_disable_device(pdev);
08c06d8a 4390 return err;
cd28ab6a
SH		 4391}
4392#endif
4393
e3173832
SH		 4394static void sky2_shutdown(struct pci_dev *pdev)
4395{
4396 struct sky2_hw *hw = pci_get_drvdata(pdev);
4397 int i, wol = 0;
4398
549a68c3
SH		 4399 if (!hw)
4400 return;
4401
5c0d6b34 4402 del_timer_sync(&hw->watchdog_timer);
e3173832
SH		 4403
4404 for (i = 0; i < hw->ports; i++) {
4405 struct net_device *dev = hw->dev[i];
4406 struct sky2_port *sky2 = netdev_priv(dev);
4407
4408 if (sky2->wol) {
4409 wol = 1;
4410 sky2_wol_init(sky2);
4411 }
4412 }
4413
4414 if (wol)
4415 sky2_power_aux(hw);
4416
4417 pci_enable_wake(pdev, PCI_D3hot, wol);
4418 pci_enable_wake(pdev, PCI_D3cold, wol);
4419
4420 pci_disable_device(pdev);
4421 pci_set_power_state(pdev, PCI_D3hot);
4422
4423}
4424
cd28ab6a 4425static struct pci_driver sky2_driver = {
793b883e
SH		 4426 .name = DRV_NAME,
4427 .id_table = sky2_id_table,
4428 .probe = sky2_probe,
4429 .remove = __devexit_p(sky2_remove),
cd28ab6a 4430#ifdef CONFIG_PM
793b883e
SH		 4431 .suspend = sky2_suspend,
4432 .resume = sky2_resume,
cd28ab6a 4433#endif
e3173832 4434 .shutdown = sky2_shutdown,
cd28ab6a
SH		 4435};
4436
4437static int __init sky2_init_module(void)
4438{
3cf26753 4439 sky2_debug_init();
50241c4c 4440 return pci_register_driver(&sky2_driver);
cd28ab6a
SH		 4441}
4442
4443static void __exit sky2_cleanup_module(void)
4444{
4445 pci_unregister_driver(&sky2_driver);
3cf26753 4446 sky2_debug_cleanup();
cd28ab6a
SH		 4447}
4448
4449module_init(sky2_init_module);
4450module_exit(sky2_cleanup_module);
4451
4452MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver");
65ebe634 4453MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
cd28ab6a 4454MODULE_LICENSE("GPL");
5f4f9dc1 4455MODULE_VERSION(DRV_VERSION);
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