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net: Use netdev_alloc_skb_ip_align()
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / skge.c
CommitLineData
baef58b1
SH		 1/*
2 * New driver for Marvell Yukon chipset and SysKonnect Gigabit
3 * Ethernet adapters. Based on earlier sk98lin, e100 and
4 * FreeBSD if_sk drivers.
5 *
6 * This driver intentionally does not support all the features
7 * of the original driver such as link fail-over and link management because
8 * those should be done at higher levels.
9 *
747802ab 10 * Copyright (C) 2004, 2005 Stephen Hemminger <shemminger@osdl.org>
baef58b1
SH		 11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
798b6b19 14 * the Free Software Foundation; either version 2 of the License.
baef58b1
SH		 15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
14c85021 26#include <linux/in.h>
baef58b1
SH		 27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/moduleparam.h>
30#include <linux/netdevice.h>
31#include <linux/etherdevice.h>
32#include <linux/ethtool.h>
33#include <linux/pci.h>
34#include <linux/if_vlan.h>
35#include <linux/ip.h>
36#include <linux/delay.h>
37#include <linux/crc32.h>
4075400b 38#include <linux/dma-mapping.h>
678aa1f6
SH		 39#include <linux/debugfs.h>
40#include <linux/seq_file.h>
2cd8e5d3 41#include <linux/mii.h>
baef58b1
SH		 42#include <asm/irq.h>
43
44#include "skge.h"
45
46#define DRV_NAME "skge"
bf9f56d5 47#define DRV_VERSION "1.13"
baef58b1
SH		 48#define PFX DRV_NAME " "
49
50#define DEFAULT_TX_RING_SIZE 128
51#define DEFAULT_RX_RING_SIZE 512
52#define MAX_TX_RING_SIZE 1024
9db96479 53#define TX_LOW_WATER (MAX_SKB_FRAGS + 1)
baef58b1 54#define MAX_RX_RING_SIZE 4096
19a33d4e
SH		 55#define RX_COPY_THRESHOLD 128
56#define RX_BUF_SIZE 1536
baef58b1
SH		 57#define PHY_RETRIES 1000
58#define ETH_JUMBO_MTU 9000
59#define TX_WATCHDOG (5 * HZ)
60#define NAPI_WEIGHT 64
6abebb53 61#define BLINK_MS 250
501fb72d 62#define LINK_HZ HZ
baef58b1 63
afa151b9
SH		 64#define SKGE_EEPROM_MAGIC 0x9933aabb
65
66
baef58b1 67MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver");
65ebe634 68MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
baef58b1
SH		 69MODULE_LICENSE("GPL");
70MODULE_VERSION(DRV_VERSION);
71
72static const u32 default_msg
73 = NETIF_MSG_DRV| NETIF_MSG_PROBE| NETIF_MSG_LINK
74 | NETIF_MSG_IFUP| NETIF_MSG_IFDOWN;
75
76static int debug = -1; /* defaults above */
77module_param(debug, int, 0);
78MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
79
80static const struct pci_device_id skge_id_table[] = {
275834d1
SH		 81 { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940) },
82 { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940B) },
83 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE) },
84 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU) },
f19841f5 85 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, PCI_DEVICE_ID_DLINK_DGE510T) },
2d2a3871 86 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b01) }, /* DGE-530T */
275834d1
SH		 87 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) },
88 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */
89 { PCI_DEVICE(PCI_VENDOR_ID_CNET, PCI_DEVICE_ID_CNET_GIGACARD) },
275834d1 90 { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1064) },
f19841f5 91 { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015 },
baef58b1
SH		 92 { 0 }
93};
94MODULE_DEVICE_TABLE(pci, skge_id_table);
95
96static int skge_up(struct net_device *dev);
97static int skge_down(struct net_device *dev);
ee294dcd 98static void skge_phy_reset(struct skge_port *skge);
513f533e 99static void skge_tx_clean(struct net_device *dev);
2cd8e5d3
SH		 100static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
101static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
baef58b1
SH		 102static void genesis_get_stats(struct skge_port *skge, u64 *data);
103static void yukon_get_stats(struct skge_port *skge, u64 *data);
104static void yukon_init(struct skge_hw *hw, int port);
baef58b1 105static void genesis_mac_init(struct skge_hw *hw, int port);
45bada65 106static void genesis_link_up(struct skge_port *skge);
f80d032b 107static void skge_set_multicast(struct net_device *dev);
baef58b1 108
7e676d91 109/* Avoid conditionals by using array */
baef58b1
SH		 110static const int txqaddr[] = { Q_XA1, Q_XA2 };
111static const int rxqaddr[] = { Q_R1, Q_R2 };
112static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F };
113static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F };
4ebabfcb
SH		 114static const u32 napimask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F };
115static const u32 portmask[] = { IS_PORT_1, IS_PORT_2 };
baef58b1 116
baef58b1
SH		 117static int skge_get_regs_len(struct net_device *dev)
118{
c3f8be96 119 return 0x4000;
baef58b1
SH		 120}
121
122/*
c3f8be96
SH		 123 * Returns copy of whole control register region
124 * Note: skip RAM address register because accessing it will
125 * cause bus hangs!
baef58b1
SH		 126 */
127static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs,
128 void *p)
129{
130 const struct skge_port *skge = netdev_priv(dev);
baef58b1 131 const void __iomem *io = skge->hw->regs;
baef58b1
SH		 132
133 regs->version = 1;
c3f8be96
SH		 134 memset(p, 0, regs->len);
135 memcpy_fromio(p, io, B3_RAM_ADDR);
baef58b1 136
c3f8be96
SH		 137 memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1,
138 regs->len - B3_RI_WTO_R1);
baef58b1
SH		 139}
140
8f3f8193 141/* Wake on Lan only supported on Yukon chips with rev 1 or above */
a504e64a 142static u32 wol_supported(const struct skge_hw *hw)
baef58b1 143{
d17ecb23 144 if (hw->chip_id == CHIP_ID_GENESIS)
a504e64a 145 return 0;
d17ecb23
SH		 146
147 if (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
148 return 0;
149
150 return WAKE_MAGIC | WAKE_PHY;
a504e64a
SH		 151}
152
a504e64a
SH		 153static void skge_wol_init(struct skge_port *skge)
154{
155 struct skge_hw *hw = skge->hw;
156 int port = skge->port;
692412b3 157 u16 ctrl;
a504e64a 158
a504e64a
SH		 159 skge_write16(hw, B0_CTST, CS_RST_CLR);
160 skge_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR);
161
692412b3
SH		 162 /* Turn on Vaux */
163 skge_write8(hw, B0_POWER_CTRL,
164 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_ON | PC_VCC_OFF);
a504e64a 165
692412b3
SH		 166 /* WA code for COMA mode -- clear PHY reset */
167 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
168 hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
169 u32 reg = skge_read32(hw, B2_GP_IO);
170 reg |= GP_DIR_9;
171 reg &= ~GP_IO_9;
172 skge_write32(hw, B2_GP_IO, reg);
173 }
a504e64a 174
692412b3
SH		 175 skge_write32(hw, SK_REG(port, GPHY_CTRL),
176 GPC_DIS_SLEEP |
177 GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 |
178 GPC_ANEG_1 | GPC_RST_SET);
a504e64a 179
692412b3
SH		 180 skge_write32(hw, SK_REG(port, GPHY_CTRL),
181 GPC_DIS_SLEEP |
182 GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 |
183 GPC_ANEG_1 | GPC_RST_CLR);
184
185 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
186
187 /* Force to 10/100 skge_reset will re-enable on resume */
188 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
189 PHY_AN_100FULL | PHY_AN_100HALF |
190 PHY_AN_10FULL | PHY_AN_10HALF| PHY_AN_CSMA);
191 /* no 1000 HD/FD */
192 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, 0);
193 gm_phy_write(hw, port, PHY_MARV_CTRL,
194 PHY_CT_RESET | PHY_CT_SPS_LSB | PHY_CT_ANE |
195 PHY_CT_RE_CFG | PHY_CT_DUP_MD);
a504e64a 196
a504e64a
SH		 197
198 /* Set GMAC to no flow control and auto update for speed/duplex */
199 gma_write16(hw, port, GM_GP_CTRL,
200 GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA|
201 GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS);
202
203 /* Set WOL address */
204 memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR),
205 skge->netdev->dev_addr, ETH_ALEN);
206
207 /* Turn on appropriate WOL control bits */
208 skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT);
209 ctrl = 0;
210 if (skge->wol & WAKE_PHY)
211 ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT;
212 else
213 ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT;
214
215 if (skge->wol & WAKE_MAGIC)
216 ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT;
217 else
a419aef8 218 ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;
a504e64a
SH		 219
220 ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT;
221 skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl);
222
223 /* block receiver */
224 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
baef58b1
SH		 225}
226
227static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
228{
229 struct skge_port *skge = netdev_priv(dev);
230
a504e64a
SH		 231 wol->supported = wol_supported(skge->hw);
232 wol->wolopts = skge->wol;
baef58b1
SH		 233}
234
235static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
236{
237 struct skge_port *skge = netdev_priv(dev);
238 struct skge_hw *hw = skge->hw;
239
5177b324
RW		 240 if ((wol->wolopts & ~wol_supported(hw))
241 || !device_can_wakeup(&hw->pdev->dev))
baef58b1
SH		 242 return -EOPNOTSUPP;
243
a504e64a 244 skge->wol = wol->wolopts;
5177b324
RW		 245
246 device_set_wakeup_enable(&hw->pdev->dev, skge->wol);
247
baef58b1
SH		 248 return 0;
249}
250
8f3f8193
SH		 251/* Determine supported/advertised modes based on hardware.
252 * Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx
31b619c5
SH		 253 */
254static u32 skge_supported_modes(const struct skge_hw *hw)
255{
256 u32 supported;
257
5e1705dd 258 if (hw->copper) {
31b619c5
SH		 259 supported = SUPPORTED_10baseT_Half
260 | SUPPORTED_10baseT_Full
261 | SUPPORTED_100baseT_Half
262 | SUPPORTED_100baseT_Full
263 | SUPPORTED_1000baseT_Half
264 | SUPPORTED_1000baseT_Full
265 | SUPPORTED_Autoneg| SUPPORTED_TP;
266
267 if (hw->chip_id == CHIP_ID_GENESIS)
268 supported &= ~(SUPPORTED_10baseT_Half
269 | SUPPORTED_10baseT_Full
270 | SUPPORTED_100baseT_Half
271 | SUPPORTED_100baseT_Full);
272
273 else if (hw->chip_id == CHIP_ID_YUKON)
274 supported &= ~SUPPORTED_1000baseT_Half;
275 } else
4b67be99
SH		 276 supported = SUPPORTED_1000baseT_Full | SUPPORTED_1000baseT_Half
277 | SUPPORTED_FIBRE | SUPPORTED_Autoneg;
31b619c5
SH		 278
279 return supported;
280}
baef58b1
SH		 281
282static int skge_get_settings(struct net_device *dev,
283 struct ethtool_cmd *ecmd)
284{
285 struct skge_port *skge = netdev_priv(dev);
286 struct skge_hw *hw = skge->hw;
287
288 ecmd->transceiver = XCVR_INTERNAL;
31b619c5 289 ecmd->supported = skge_supported_modes(hw);
baef58b1 290
5e1705dd 291 if (hw->copper) {
baef58b1
SH		 292 ecmd->port = PORT_TP;
293 ecmd->phy_address = hw->phy_addr;
31b619c5 294 } else
baef58b1 295 ecmd->port = PORT_FIBRE;
baef58b1
SH		 296
297 ecmd->advertising = skge->advertising;
298 ecmd->autoneg = skge->autoneg;
299 ecmd->speed = skge->speed;
300 ecmd->duplex = skge->duplex;
301 return 0;
302}
303
baef58b1
SH		 304static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
305{
306 struct skge_port *skge = netdev_priv(dev);
307 const struct skge_hw *hw = skge->hw;
31b619c5 308 u32 supported = skge_supported_modes(hw);
9ac1353f 309 int err = 0;
baef58b1
SH		 310
311 if (ecmd->autoneg == AUTONEG_ENABLE) {
31b619c5
SH		 312 ecmd->advertising = supported;
313 skge->duplex = -1;
314 skge->speed = -1;
baef58b1 315 } else {
31b619c5
SH		 316 u32 setting;
317
2c668514 318 switch (ecmd->speed) {
baef58b1 319 case SPEED_1000:
31b619c5
SH		 320 if (ecmd->duplex == DUPLEX_FULL)
321 setting = SUPPORTED_1000baseT_Full;
322 else if (ecmd->duplex == DUPLEX_HALF)
323 setting = SUPPORTED_1000baseT_Half;
324 else
325 return -EINVAL;
baef58b1
SH		 326 break;
327 case SPEED_100:
31b619c5
SH		 328 if (ecmd->duplex == DUPLEX_FULL)
329 setting = SUPPORTED_100baseT_Full;
330 else if (ecmd->duplex == DUPLEX_HALF)
331 setting = SUPPORTED_100baseT_Half;
332 else
333 return -EINVAL;
334 break;
335
baef58b1 336 case SPEED_10:
31b619c5
SH		 337 if (ecmd->duplex == DUPLEX_FULL)
338 setting = SUPPORTED_10baseT_Full;
339 else if (ecmd->duplex == DUPLEX_HALF)
340 setting = SUPPORTED_10baseT_Half;
341 else
baef58b1
SH		 342 return -EINVAL;
343 break;
344 default:
345 return -EINVAL;
346 }
31b619c5
SH		 347
348 if ((setting & supported) == 0)
349 return -EINVAL;
350
351 skge->speed = ecmd->speed;
352 skge->duplex = ecmd->duplex;
baef58b1
SH		 353 }
354
355 skge->autoneg = ecmd->autoneg;
baef58b1
SH		 356 skge->advertising = ecmd->advertising;
357
9ac1353f
XZ		 358 if (netif_running(dev)) {
359 skge_down(dev);
360 err = skge_up(dev);
361 if (err) {
362 dev_close(dev);
363 return err;
364 }
365 }
ee294dcd 366
baef58b1
SH		 367 return (0);
368}
369
370static void skge_get_drvinfo(struct net_device *dev,
371 struct ethtool_drvinfo *info)
372{
373 struct skge_port *skge = netdev_priv(dev);
374
375 strcpy(info->driver, DRV_NAME);
376 strcpy(info->version, DRV_VERSION);
377 strcpy(info->fw_version, "N/A");
378 strcpy(info->bus_info, pci_name(skge->hw->pdev));
379}
380
381static const struct skge_stat {
382 char name[ETH_GSTRING_LEN];
383 u16 xmac_offset;
384 u16 gma_offset;
385} skge_stats[] = {
386 { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI },
387 { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI },
388
389 { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK },
390 { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK },
391 { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK },
392 { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK },
393 { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK },
394 { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK },
395 { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE },
396 { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE },
397
398 { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL },
399 { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL },
400 { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL },
401 { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL },
402 { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR },
403 { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV },
404
405 { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
406 { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT },
407 { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG },
408 { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
409 { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR },
410};
411
b9f2c044 412static int skge_get_sset_count(struct net_device *dev, int sset)
baef58b1 413{
b9f2c044
JG		 414 switch (sset) {
415 case ETH_SS_STATS:
416 return ARRAY_SIZE(skge_stats);
417 default:
418 return -EOPNOTSUPP;
419 }
baef58b1
SH		 420}
421
422static void skge_get_ethtool_stats(struct net_device *dev,
423 struct ethtool_stats *stats, u64 *data)
424{
425 struct skge_port *skge = netdev_priv(dev);
426
427 if (skge->hw->chip_id == CHIP_ID_GENESIS)
428 genesis_get_stats(skge, data);
429 else
430 yukon_get_stats(skge, data);
431}
432
433/* Use hardware MIB variables for critical path statistics and
434 * transmit feedback not reported at interrupt.
435 * Other errors are accounted for in interrupt handler.
436 */
437static struct net_device_stats *skge_get_stats(struct net_device *dev)
438{
439 struct skge_port *skge = netdev_priv(dev);
440 u64 data[ARRAY_SIZE(skge_stats)];
441
442 if (skge->hw->chip_id == CHIP_ID_GENESIS)
443 genesis_get_stats(skge, data);
444 else
445 yukon_get_stats(skge, data);
446
da00772f
SH		 447 dev->stats.tx_bytes = data[0];
448 dev->stats.rx_bytes = data[1];
449 dev->stats.tx_packets = data[2] + data[4] + data[6];
450 dev->stats.rx_packets = data[3] + data[5] + data[7];
451 dev->stats.multicast = data[3] + data[5];
452 dev->stats.collisions = data[10];
453 dev->stats.tx_aborted_errors = data[12];
baef58b1 454
da00772f 455 return &dev->stats;
baef58b1
SH		 456}
457
458static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data)
459{
460 int i;
461
95566065 462 switch (stringset) {
baef58b1
SH		 463 case ETH_SS_STATS:
464 for (i = 0; i < ARRAY_SIZE(skge_stats); i++)
465 memcpy(data + i * ETH_GSTRING_LEN,
466 skge_stats[i].name, ETH_GSTRING_LEN);
467 break;
468 }
469}
470
471static void skge_get_ring_param(struct net_device *dev,
472 struct ethtool_ringparam *p)
473{
474 struct skge_port *skge = netdev_priv(dev);
475
476 p->rx_max_pending = MAX_RX_RING_SIZE;
477 p->tx_max_pending = MAX_TX_RING_SIZE;
478 p->rx_mini_max_pending = 0;
479 p->rx_jumbo_max_pending = 0;
480
481 p->rx_pending = skge->rx_ring.count;
482 p->tx_pending = skge->tx_ring.count;
483 p->rx_mini_pending = 0;
484 p->rx_jumbo_pending = 0;
485}
486
487static int skge_set_ring_param(struct net_device *dev,
488 struct ethtool_ringparam *p)
489{
490 struct skge_port *skge = netdev_priv(dev);
e824b3eb 491 int err = 0;
baef58b1
SH		 492
493 if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE ||
9db96479 494 p->tx_pending < TX_LOW_WATER || p->tx_pending > MAX_TX_RING_SIZE)
baef58b1
SH		 495 return -EINVAL;
496
497 skge->rx_ring.count = p->rx_pending;
498 skge->tx_ring.count = p->tx_pending;
499
500 if (netif_running(dev)) {
501 skge_down(dev);
3b8bb472
SH		 502 err = skge_up(dev);
503 if (err)
504 dev_close(dev);
baef58b1
SH		 505 }
506
e824b3eb 507 return err;
baef58b1
SH		 508}
509
510static u32 skge_get_msglevel(struct net_device *netdev)
511{
512 struct skge_port *skge = netdev_priv(netdev);
513 return skge->msg_enable;
514}
515
516static void skge_set_msglevel(struct net_device *netdev, u32 value)
517{
518 struct skge_port *skge = netdev_priv(netdev);
519 skge->msg_enable = value;
520}
521
522static int skge_nway_reset(struct net_device *dev)
523{
524 struct skge_port *skge = netdev_priv(dev);
baef58b1
SH		 525
526 if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev))
527 return -EINVAL;
528
ee294dcd 529 skge_phy_reset(skge);
baef58b1
SH		 530 return 0;
531}
532
533static int skge_set_sg(struct net_device *dev, u32 data)
534{
535 struct skge_port *skge = netdev_priv(dev);
536 struct skge_hw *hw = skge->hw;
537
538 if (hw->chip_id == CHIP_ID_GENESIS && data)
539 return -EOPNOTSUPP;
540 return ethtool_op_set_sg(dev, data);
541}
542
543static int skge_set_tx_csum(struct net_device *dev, u32 data)
544{
545 struct skge_port *skge = netdev_priv(dev);
546 struct skge_hw *hw = skge->hw;
547
548 if (hw->chip_id == CHIP_ID_GENESIS && data)
549 return -EOPNOTSUPP;
550
551 return ethtool_op_set_tx_csum(dev, data);
552}
553
554static u32 skge_get_rx_csum(struct net_device *dev)
555{
556 struct skge_port *skge = netdev_priv(dev);
557
558 return skge->rx_csum;
559}
560
561/* Only Yukon supports checksum offload. */
562static int skge_set_rx_csum(struct net_device *dev, u32 data)
563{
564 struct skge_port *skge = netdev_priv(dev);
565
566 if (skge->hw->chip_id == CHIP_ID_GENESIS && data)
567 return -EOPNOTSUPP;
568
569 skge->rx_csum = data;
570 return 0;
571}
572
baef58b1
SH		 573static void skge_get_pauseparam(struct net_device *dev,
574 struct ethtool_pauseparam *ecmd)
575{
576 struct skge_port *skge = netdev_priv(dev);
577
5d5c8e03
SH		 578 ecmd->rx_pause = (skge->flow_control == FLOW_MODE_SYMMETRIC)
579 || (skge->flow_control == FLOW_MODE_SYM_OR_REM);
580 ecmd->tx_pause = ecmd->rx_pause || (skge->flow_control == FLOW_MODE_LOC_SEND);
baef58b1 581
5d5c8e03 582 ecmd->autoneg = ecmd->rx_pause || ecmd->tx_pause;
baef58b1
SH		 583}
584
585static int skge_set_pauseparam(struct net_device *dev,
586 struct ethtool_pauseparam *ecmd)
587{
588 struct skge_port *skge = netdev_priv(dev);
5d5c8e03 589 struct ethtool_pauseparam old;
9ac1353f 590 int err = 0;
baef58b1 591
5d5c8e03
SH		 592 skge_get_pauseparam(dev, &old);
593
594 if (ecmd->autoneg != old.autoneg)
595 skge->flow_control = ecmd->autoneg ? FLOW_MODE_NONE : FLOW_MODE_SYMMETRIC;
596 else {
597 if (ecmd->rx_pause && ecmd->tx_pause)
598 skge->flow_control = FLOW_MODE_SYMMETRIC;
599 else if (ecmd->rx_pause && !ecmd->tx_pause)
600 skge->flow_control = FLOW_MODE_SYM_OR_REM;
601 else if (!ecmd->rx_pause && ecmd->tx_pause)
602 skge->flow_control = FLOW_MODE_LOC_SEND;
603 else
604 skge->flow_control = FLOW_MODE_NONE;
605 }
baef58b1 606
9ac1353f
XZ		 607 if (netif_running(dev)) {
608 skge_down(dev);
609 err = skge_up(dev);
610 if (err) {
611 dev_close(dev);
612 return err;
613 }
614 }
5d5c8e03 615
baef58b1
SH		 616 return 0;
617}
618
619/* Chip internal frequency for clock calculations */
620static inline u32 hwkhz(const struct skge_hw *hw)
621{
187ff3b8 622 return (hw->chip_id == CHIP_ID_GENESIS) ? 53125 : 78125;
baef58b1
SH		 623}
624
8f3f8193 625/* Chip HZ to microseconds */
baef58b1
SH		 626static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks)
627{
628 return (ticks * 1000) / hwkhz(hw);
629}
630
8f3f8193 631/* Microseconds to chip HZ */
baef58b1
SH		 632static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec)
633{
634 return hwkhz(hw) * usec / 1000;
635}
636
637static int skge_get_coalesce(struct net_device *dev,
638 struct ethtool_coalesce *ecmd)
639{
640 struct skge_port *skge = netdev_priv(dev);
641 struct skge_hw *hw = skge->hw;
642 int port = skge->port;
643
644 ecmd->rx_coalesce_usecs = 0;
645 ecmd->tx_coalesce_usecs = 0;
646
647 if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) {
648 u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI));
649 u32 msk = skge_read32(hw, B2_IRQM_MSK);
650
651 if (msk & rxirqmask[port])
652 ecmd->rx_coalesce_usecs = delay;
653 if (msk & txirqmask[port])
654 ecmd->tx_coalesce_usecs = delay;
655 }
656
657 return 0;
658}
659
660/* Note: interrupt timer is per board, but can turn on/off per port */
661static int skge_set_coalesce(struct net_device *dev,
662 struct ethtool_coalesce *ecmd)
663{
664 struct skge_port *skge = netdev_priv(dev);
665 struct skge_hw *hw = skge->hw;
666 int port = skge->port;
667 u32 msk = skge_read32(hw, B2_IRQM_MSK);
668 u32 delay = 25;
669
670 if (ecmd->rx_coalesce_usecs == 0)
671 msk &= ~rxirqmask[port];
672 else if (ecmd->rx_coalesce_usecs < 25 ||
673 ecmd->rx_coalesce_usecs > 33333)
674 return -EINVAL;
675 else {
676 msk |= rxirqmask[port];
677 delay = ecmd->rx_coalesce_usecs;
678 }
679
680 if (ecmd->tx_coalesce_usecs == 0)
681 msk &= ~txirqmask[port];
682 else if (ecmd->tx_coalesce_usecs < 25 ||
683 ecmd->tx_coalesce_usecs > 33333)
684 return -EINVAL;
685 else {
686 msk |= txirqmask[port];
687 delay = min(delay, ecmd->rx_coalesce_usecs);
688 }
689
690 skge_write32(hw, B2_IRQM_MSK, msk);
691 if (msk == 0)
692 skge_write32(hw, B2_IRQM_CTRL, TIM_STOP);
693 else {
694 skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay));
695 skge_write32(hw, B2_IRQM_CTRL, TIM_START);
696 }
697 return 0;
698}
699
6abebb53
SH		 700enum led_mode { LED_MODE_OFF, LED_MODE_ON, LED_MODE_TST };
701static void skge_led(struct skge_port *skge, enum led_mode mode)
baef58b1 702{
6abebb53
SH		 703 struct skge_hw *hw = skge->hw;
704 int port = skge->port;
705
9cbe330f 706 spin_lock_bh(&hw->phy_lock);
baef58b1 707 if (hw->chip_id == CHIP_ID_GENESIS) {
6abebb53
SH		 708 switch (mode) {
709 case LED_MODE_OFF:
64f6b64d
SH		 710 if (hw->phy_type == SK_PHY_BCOM)
711 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF);
712 else {
713 skge_write32(hw, SK_REG(port, TX_LED_VAL), 0);
714 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_T_OFF);
715 }
6abebb53
SH		 716 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
717 skge_write32(hw, SK_REG(port, RX_LED_VAL), 0);
718 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF);
719 break;
baef58b1 720
6abebb53
SH		 721 case LED_MODE_ON:
722 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON);
723 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON);
baef58b1 724
6abebb53
SH		 725 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
726 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
baef58b1 727
6abebb53 728 break;
baef58b1 729
6abebb53
SH		 730 case LED_MODE_TST:
731 skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON);
732 skge_write32(hw, SK_REG(port, RX_LED_VAL), 100);
733 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
baef58b1 734
64f6b64d
SH		 735 if (hw->phy_type == SK_PHY_BCOM)
736 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON);
737 else {
738 skge_write8(hw, SK_REG(port, TX_LED_TST), LED_T_ON);
739 skge_write32(hw, SK_REG(port, TX_LED_VAL), 100);
740 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
741 }
742
6abebb53 743 }
baef58b1 744 } else {
6abebb53
SH		 745 switch (mode) {
746 case LED_MODE_OFF:
747 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
748 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
749 PHY_M_LED_MO_DUP(MO_LED_OFF) |
750 PHY_M_LED_MO_10(MO_LED_OFF) |
751 PHY_M_LED_MO_100(MO_LED_OFF) |
752 PHY_M_LED_MO_1000(MO_LED_OFF) |
753 PHY_M_LED_MO_RX(MO_LED_OFF));
754 break;
755 case LED_MODE_ON:
756 gm_phy_write(hw, port, PHY_MARV_LED_CTRL,
757 PHY_M_LED_PULS_DUR(PULS_170MS) |
758 PHY_M_LED_BLINK_RT(BLINK_84MS) |
759 PHY_M_LEDC_TX_CTRL |
760 PHY_M_LEDC_DP_CTRL);
46a60f2d 761
6abebb53
SH		 762 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
763 PHY_M_LED_MO_RX(MO_LED_OFF) |
764 (skge->speed == SPEED_100 ?
765 PHY_M_LED_MO_100(MO_LED_ON) : 0));
766 break;
767 case LED_MODE_TST:
768 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
769 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
770 PHY_M_LED_MO_DUP(MO_LED_ON) |
771 PHY_M_LED_MO_10(MO_LED_ON) |
772 PHY_M_LED_MO_100(MO_LED_ON) |
773 PHY_M_LED_MO_1000(MO_LED_ON) |
774 PHY_M_LED_MO_RX(MO_LED_ON));
775 }
baef58b1 776 }
9cbe330f 777 spin_unlock_bh(&hw->phy_lock);
baef58b1
SH		 778}
779
780/* blink LED's for finding board */
781static int skge_phys_id(struct net_device *dev, u32 data)
782{
783 struct skge_port *skge = netdev_priv(dev);
6abebb53
SH		 784 unsigned long ms;
785 enum led_mode mode = LED_MODE_TST;
baef58b1 786
95566065 787 if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ))
6abebb53
SH		 788 ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT / HZ) * 1000;
789 else
790 ms = data * 1000;
baef58b1 791
6abebb53
SH		 792 while (ms > 0) {
793 skge_led(skge, mode);
794 mode ^= LED_MODE_TST;
baef58b1 795
6abebb53
SH		 796 if (msleep_interruptible(BLINK_MS))
797 break;
798 ms -= BLINK_MS;
799 }
baef58b1 800
6abebb53
SH		 801 /* back to regular LED state */
802 skge_led(skge, netif_running(dev) ? LED_MODE_ON : LED_MODE_OFF);
baef58b1
SH		 803
804 return 0;
805}
806
afa151b9
SH		 807static int skge_get_eeprom_len(struct net_device *dev)
808{
809 struct skge_port *skge = netdev_priv(dev);
810 u32 reg2;
811
812 pci_read_config_dword(skge->hw->pdev, PCI_DEV_REG2, &reg2);
813 return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
814}
815
816static u32 skge_vpd_read(struct pci_dev *pdev, int cap, u16 offset)
817{
818 u32 val;
819
820 pci_write_config_word(pdev, cap + PCI_VPD_ADDR, offset);
821
822 do {
823 pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset);
824 } while (!(offset & PCI_VPD_ADDR_F));
825
826 pci_read_config_dword(pdev, cap + PCI_VPD_DATA, &val);
827 return val;
828}
829
830static void skge_vpd_write(struct pci_dev *pdev, int cap, u16 offset, u32 val)
831{
832 pci_write_config_dword(pdev, cap + PCI_VPD_DATA, val);
833 pci_write_config_word(pdev, cap + PCI_VPD_ADDR,
834 offset | PCI_VPD_ADDR_F);
835
836 do {
837 pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset);
838 } while (offset & PCI_VPD_ADDR_F);
839}
840
841static int skge_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
842 u8 *data)
843{
844 struct skge_port *skge = netdev_priv(dev);
845 struct pci_dev *pdev = skge->hw->pdev;
846 int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD);
847 int length = eeprom->len;
848 u16 offset = eeprom->offset;
849
850 if (!cap)
851 return -EINVAL;
852
853 eeprom->magic = SKGE_EEPROM_MAGIC;
854
855 while (length > 0) {
856 u32 val = skge_vpd_read(pdev, cap, offset);
857 int n = min_t(int, length, sizeof(val));
858
859 memcpy(data, &val, n);
860 length -= n;
861 data += n;
862 offset += n;
863 }
864 return 0;
865}
866
867static int skge_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
868 u8 *data)
869{
870 struct skge_port *skge = netdev_priv(dev);
871 struct pci_dev *pdev = skge->hw->pdev;
872 int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD);
873 int length = eeprom->len;
874 u16 offset = eeprom->offset;
875
876 if (!cap)
877 return -EINVAL;
878
879 if (eeprom->magic != SKGE_EEPROM_MAGIC)
880 return -EINVAL;
881
882 while (length > 0) {
883 u32 val;
884 int n = min_t(int, length, sizeof(val));
885
886 if (n < sizeof(val))
887 val = skge_vpd_read(pdev, cap, offset);
888 memcpy(&val, data, n);
889
890 skge_vpd_write(pdev, cap, offset, val);
891
892 length -= n;
893 data += n;
894 offset += n;
895 }
896 return 0;
897}
898
7282d491 899static const struct ethtool_ops skge_ethtool_ops = {
baef58b1
SH		 900 .get_settings = skge_get_settings,
901 .set_settings = skge_set_settings,
902 .get_drvinfo = skge_get_drvinfo,
903 .get_regs_len = skge_get_regs_len,
904 .get_regs = skge_get_regs,
905 .get_wol = skge_get_wol,
906 .set_wol = skge_set_wol,
907 .get_msglevel = skge_get_msglevel,
908 .set_msglevel = skge_set_msglevel,
909 .nway_reset = skge_nway_reset,
910 .get_link = ethtool_op_get_link,
afa151b9
SH		 911 .get_eeprom_len = skge_get_eeprom_len,
912 .get_eeprom = skge_get_eeprom,
913 .set_eeprom = skge_set_eeprom,
baef58b1
SH		 914 .get_ringparam = skge_get_ring_param,
915 .set_ringparam = skge_set_ring_param,
916 .get_pauseparam = skge_get_pauseparam,
917 .set_pauseparam = skge_set_pauseparam,
918 .get_coalesce = skge_get_coalesce,
919 .set_coalesce = skge_set_coalesce,
baef58b1 920 .set_sg = skge_set_sg,
baef58b1
SH		 921 .set_tx_csum = skge_set_tx_csum,
922 .get_rx_csum = skge_get_rx_csum,
923 .set_rx_csum = skge_set_rx_csum,
924 .get_strings = skge_get_strings,
925 .phys_id = skge_phys_id,
b9f2c044 926 .get_sset_count = skge_get_sset_count,
baef58b1
SH		 927 .get_ethtool_stats = skge_get_ethtool_stats,
928};
929
930/*
931 * Allocate ring elements and chain them together
932 * One-to-one association of board descriptors with ring elements
933 */
c3da1447 934static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u32 base)
baef58b1
SH		 935{
936 struct skge_tx_desc *d;
937 struct skge_element *e;
938 int i;
939
cd861280 940 ring->start = kcalloc(ring->count, sizeof(*e), GFP_KERNEL);
baef58b1
SH		 941 if (!ring->start)
942 return -ENOMEM;
943
944 for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) {
945 e->desc = d;
946 if (i == ring->count - 1) {
947 e->next = ring->start;
948 d->next_offset = base;
949 } else {
950 e->next = e + 1;
951 d->next_offset = base + (i+1) * sizeof(*d);
952 }
953 }
954 ring->to_use = ring->to_clean = ring->start;
955
956 return 0;
957}
958
19a33d4e
SH		 959/* Allocate and setup a new buffer for receiving */
960static void skge_rx_setup(struct skge_port *skge, struct skge_element *e,
961 struct sk_buff *skb, unsigned int bufsize)
962{
963 struct skge_rx_desc *rd = e->desc;
964 u64 map;
baef58b1
SH		 965
966 map = pci_map_single(skge->hw->pdev, skb->data, bufsize,
967 PCI_DMA_FROMDEVICE);
968
969 rd->dma_lo = map;
970 rd->dma_hi = map >> 32;
971 e->skb = skb;
972 rd->csum1_start = ETH_HLEN;
973 rd->csum2_start = ETH_HLEN;
974 rd->csum1 = 0;
975 rd->csum2 = 0;
976
977 wmb();
978
979 rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize;
980 pci_unmap_addr_set(e, mapaddr, map);
981 pci_unmap_len_set(e, maplen, bufsize);
baef58b1
SH		 982}
983
19a33d4e
SH		 984/* Resume receiving using existing skb,
985 * Note: DMA address is not changed by chip.
986 * MTU not changed while receiver active.
987 */
5a011447 988static inline void skge_rx_reuse(struct skge_element *e, unsigned int size)
19a33d4e
SH		 989{
990 struct skge_rx_desc *rd = e->desc;
991
992 rd->csum2 = 0;
993 rd->csum2_start = ETH_HLEN;
994
995 wmb();
996
997 rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | size;
998}
999
1000
1001/* Free all buffers in receive ring, assumes receiver stopped */
baef58b1
SH		 1002static void skge_rx_clean(struct skge_port *skge)
1003{
1004 struct skge_hw *hw = skge->hw;
1005 struct skge_ring *ring = &skge->rx_ring;
1006 struct skge_element *e;
1007
19a33d4e
SH		 1008 e = ring->start;
1009 do {
baef58b1
SH		 1010 struct skge_rx_desc *rd = e->desc;
1011 rd->control = 0;
19a33d4e
SH		 1012 if (e->skb) {
1013 pci_unmap_single(hw->pdev,
1014 pci_unmap_addr(e, mapaddr),
1015 pci_unmap_len(e, maplen),
1016 PCI_DMA_FROMDEVICE);
1017 dev_kfree_skb(e->skb);
1018 e->skb = NULL;
1019 }
1020 } while ((e = e->next) != ring->start);
baef58b1
SH		 1021}
1022
19a33d4e 1023
baef58b1 1024/* Allocate buffers for receive ring
19a33d4e 1025 * For receive: to_clean is next received frame.
baef58b1 1026 */
c54f9765 1027static int skge_rx_fill(struct net_device *dev)
baef58b1 1028{
c54f9765 1029 struct skge_port *skge = netdev_priv(dev);
baef58b1
SH		 1030 struct skge_ring *ring = &skge->rx_ring;
1031 struct skge_element *e;
baef58b1 1032
19a33d4e
SH		 1033 e = ring->start;
1034 do {
383181ac 1035 struct sk_buff *skb;
baef58b1 1036
c54f9765
SH		 1037 skb = __netdev_alloc_skb(dev, skge->rx_buf_size + NET_IP_ALIGN,
1038 GFP_KERNEL);
19a33d4e
SH		 1039 if (!skb)
1040 return -ENOMEM;
1041
383181ac
SH		 1042 skb_reserve(skb, NET_IP_ALIGN);
1043 skge_rx_setup(skge, e, skb, skge->rx_buf_size);
19a33d4e 1044 } while ( (e = e->next) != ring->start);
baef58b1 1045
19a33d4e
SH		 1046 ring->to_clean = ring->start;
1047 return 0;
baef58b1
SH		 1048}
1049
5d5c8e03
SH		 1050static const char *skge_pause(enum pause_status status)
1051{
1052 switch(status) {
1053 case FLOW_STAT_NONE:
1054 return "none";
1055 case FLOW_STAT_REM_SEND:
1056 return "rx only";
1057 case FLOW_STAT_LOC_SEND:
1058 return "tx_only";
1059 case FLOW_STAT_SYMMETRIC: /* Both station may send PAUSE */
1060 return "both";
1061 default:
1062 return "indeterminated";
1063 }
1064}
1065
1066
baef58b1
SH		 1067static void skge_link_up(struct skge_port *skge)
1068{
46a60f2d 1069 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG),
54cfb5aa
SH		 1070 LED_BLK_OFF|LED_SYNC_OFF|LED_ON);
1071
baef58b1 1072 netif_carrier_on(skge->netdev);
29b4e886 1073 netif_wake_queue(skge->netdev);
baef58b1 1074
5d5c8e03 1075 if (netif_msg_link(skge)) {
baef58b1
SH		 1076 printk(KERN_INFO PFX
1077 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
1078 skge->netdev->name, skge->speed,
1079 skge->duplex == DUPLEX_FULL ? "full" : "half",
5d5c8e03
SH		 1080 skge_pause(skge->flow_status));
1081 }
baef58b1
SH		 1082}
1083
1084static void skge_link_down(struct skge_port *skge)
1085{
54cfb5aa 1086 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
baef58b1
SH		 1087 netif_carrier_off(skge->netdev);
1088 netif_stop_queue(skge->netdev);
1089
1090 if (netif_msg_link(skge))
1091 printk(KERN_INFO PFX "%s: Link is down.\n", skge->netdev->name);
1092}
1093
a1bc9b87
SH		 1094
1095static void xm_link_down(struct skge_hw *hw, int port)
1096{
1097 struct net_device *dev = hw->dev[port];
1098 struct skge_port *skge = netdev_priv(dev);
a1bc9b87 1099
501fb72d 1100 xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE);
a1bc9b87 1101
a1bc9b87
SH		 1102 if (netif_carrier_ok(dev))
1103 skge_link_down(skge);
1104}
1105
2cd8e5d3 1106static int __xm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
baef58b1
SH		 1107{
1108 int i;
baef58b1 1109
6b0c1480 1110 xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
0781191c 1111 *val = xm_read16(hw, port, XM_PHY_DATA);
baef58b1 1112
64f6b64d
SH		 1113 if (hw->phy_type == SK_PHY_XMAC)
1114 goto ready;
1115
89bf5f23 1116 for (i = 0; i < PHY_RETRIES; i++) {
2cd8e5d3 1117 if (xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_RDY)
89bf5f23 1118 goto ready;
0781191c 1119 udelay(1);
baef58b1
SH		 1120 }
1121
2cd8e5d3 1122 return -ETIMEDOUT;
89bf5f23 1123 ready:
2cd8e5d3 1124 *val = xm_read16(hw, port, XM_PHY_DATA);
89bf5f23 1125
2cd8e5d3
SH		 1126 return 0;
1127}
1128
1129static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg)
1130{
1131 u16 v = 0;
1132 if (__xm_phy_read(hw, port, reg, &v))
1133 printk(KERN_WARNING PFX "%s: phy read timed out\n",
1134 hw->dev[port]->name);
baef58b1
SH		 1135 return v;
1136}
1137
2cd8e5d3 1138static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
baef58b1
SH		 1139{
1140 int i;
1141
6b0c1480 1142 xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
baef58b1 1143 for (i = 0; i < PHY_RETRIES; i++) {
6b0c1480 1144 if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
baef58b1 1145 goto ready;
89bf5f23 1146 udelay(1);
baef58b1 1147 }
2cd8e5d3 1148 return -EIO;
baef58b1
SH		 1149
1150 ready:
6b0c1480 1151 xm_write16(hw, port, XM_PHY_DATA, val);
0781191c
SH		 1152 for (i = 0; i < PHY_RETRIES; i++) {
1153 if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
1154 return 0;
1155 udelay(1);
1156 }
1157 return -ETIMEDOUT;
baef58b1
SH		 1158}
1159
1160static void genesis_init(struct skge_hw *hw)
1161{
1162 /* set blink source counter */
1163 skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100);
1164 skge_write8(hw, B2_BSC_CTRL, BSC_START);
1165
1166 /* configure mac arbiter */
1167 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
1168
1169 /* configure mac arbiter timeout values */
1170 skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53);
1171 skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53);
1172 skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53);
1173 skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53);
1174
1175 skge_write8(hw, B3_MA_RCINI_RX1, 0);
1176 skge_write8(hw, B3_MA_RCINI_RX2, 0);
1177 skge_write8(hw, B3_MA_RCINI_TX1, 0);
1178 skge_write8(hw, B3_MA_RCINI_TX2, 0);
1179
1180 /* configure packet arbiter timeout */
1181 skge_write16(hw, B3_PA_CTRL, PA_RST_CLR);
1182 skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX);
1183 skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX);
1184 skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX);
1185 skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX);
1186}
1187
1188static void genesis_reset(struct skge_hw *hw, int port)
1189{
45bada65 1190 const u8 zero[8] = { 0 };
21d7f677 1191 u32 reg;
baef58b1 1192
46a60f2d
SH		 1193 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
1194
baef58b1 1195 /* reset the statistics module */
6b0c1480 1196 xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT);
501fb72d 1197 xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE);
6b0c1480
SH		 1198 xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */
1199 xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */
1200 xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */
baef58b1 1201
89bf5f23 1202 /* disable Broadcom PHY IRQ */
64f6b64d
SH		 1203 if (hw->phy_type == SK_PHY_BCOM)
1204 xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff);
baef58b1 1205
45bada65 1206 xm_outhash(hw, port, XM_HSM, zero);
21d7f677
SH		 1207
1208 /* Flush TX and RX fifo */
1209 reg = xm_read32(hw, port, XM_MODE);
1210 xm_write32(hw, port, XM_MODE, reg | XM_MD_FTF);
1211 xm_write32(hw, port, XM_MODE, reg | XM_MD_FRF);
baef58b1
SH		 1212}
1213
1214
45bada65
SH		 1215/* Convert mode to MII values */
1216static const u16 phy_pause_map[] = {
1217 [FLOW_MODE_NONE] = 0,
1218 [FLOW_MODE_LOC_SEND] = PHY_AN_PAUSE_ASYM,
1219 [FLOW_MODE_SYMMETRIC] = PHY_AN_PAUSE_CAP,
5d5c8e03 1220 [FLOW_MODE_SYM_OR_REM] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM,
45bada65
SH		 1221};
1222
4b67be99
SH		 1223/* special defines for FIBER (88E1011S only) */
1224static const u16 fiber_pause_map[] = {
1225 [FLOW_MODE_NONE] = PHY_X_P_NO_PAUSE,
1226 [FLOW_MODE_LOC_SEND] = PHY_X_P_ASYM_MD,
1227 [FLOW_MODE_SYMMETRIC] = PHY_X_P_SYM_MD,
5d5c8e03 1228 [FLOW_MODE_SYM_OR_REM] = PHY_X_P_BOTH_MD,
4b67be99
SH		 1229};
1230
45bada65
SH		 1231
1232/* Check status of Broadcom phy link */
1233static void bcom_check_link(struct skge_hw *hw, int port)
baef58b1 1234{
45bada65
SH		 1235 struct net_device *dev = hw->dev[port];
1236 struct skge_port *skge = netdev_priv(dev);
1237 u16 status;
1238
1239 /* read twice because of latch */
501fb72d 1240 xm_phy_read(hw, port, PHY_BCOM_STAT);
45bada65
SH		 1241 status = xm_phy_read(hw, port, PHY_BCOM_STAT);
1242
45bada65 1243 if ((status & PHY_ST_LSYNC) == 0) {
a1bc9b87 1244 xm_link_down(hw, port);
64f6b64d
SH		 1245 return;
1246 }
45bada65 1247
64f6b64d
SH		 1248 if (skge->autoneg == AUTONEG_ENABLE) {
1249 u16 lpa, aux;
45bada65 1250
64f6b64d
SH		 1251 if (!(status & PHY_ST_AN_OVER))
1252 return;
45bada65 1253
64f6b64d
SH		 1254 lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP);
1255 if (lpa & PHY_B_AN_RF) {
1256 printk(KERN_NOTICE PFX "%s: remote fault\n",
1257 dev->name);
1258 return;
1259 }
45bada65 1260
64f6b64d
SH		 1261 aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT);
1262
1263 /* Check Duplex mismatch */
1264 switch (aux & PHY_B_AS_AN_RES_MSK) {
1265 case PHY_B_RES_1000FD:
1266 skge->duplex = DUPLEX_FULL;
1267 break;
1268 case PHY_B_RES_1000HD:
1269 skge->duplex = DUPLEX_HALF;
1270 break;
1271 default:
1272 printk(KERN_NOTICE PFX "%s: duplex mismatch\n",
1273 dev->name);
1274 return;
45bada65
SH		 1275 }
1276
64f6b64d
SH		 1277 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1278 switch (aux & PHY_B_AS_PAUSE_MSK) {
1279 case PHY_B_AS_PAUSE_MSK:
5d5c8e03 1280 skge->flow_status = FLOW_STAT_SYMMETRIC;
64f6b64d
SH		 1281 break;
1282 case PHY_B_AS_PRR:
5d5c8e03 1283 skge->flow_status = FLOW_STAT_REM_SEND;
64f6b64d
SH		 1284 break;
1285 case PHY_B_AS_PRT:
5d5c8e03 1286 skge->flow_status = FLOW_STAT_LOC_SEND;
64f6b64d
SH		 1287 break;
1288 default:
5d5c8e03 1289 skge->flow_status = FLOW_STAT_NONE;
64f6b64d
SH		 1290 }
1291 skge->speed = SPEED_1000;
45bada65 1292 }
64f6b64d
SH		 1293
1294 if (!netif_carrier_ok(dev))
1295 genesis_link_up(skge);
45bada65
SH		 1296}
1297
1298/* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional
1299 * Phy on for 100 or 10Mbit operation
1300 */
64f6b64d 1301static void bcom_phy_init(struct skge_port *skge)
45bada65
SH		 1302{
1303 struct skge_hw *hw = skge->hw;
1304 int port = skge->port;
baef58b1 1305 int i;
45bada65 1306 u16 id1, r, ext, ctl;
baef58b1
SH		 1307
1308 /* magic workaround patterns for Broadcom */
1309 static const struct {
1310 u16 reg;
1311 u16 val;
1312 } A1hack[] = {
1313 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
1314 { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
1315 { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
1316 { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
1317 }, C0hack[] = {
1318 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
1319 { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
1320 };
1321
45bada65
SH		 1322 /* read Id from external PHY (all have the same address) */
1323 id1 = xm_phy_read(hw, port, PHY_XMAC_ID1);
1324
1325 /* Optimize MDIO transfer by suppressing preamble. */
1326 r = xm_read16(hw, port, XM_MMU_CMD);
1327 r |= XM_MMU_NO_PRE;
1328 xm_write16(hw, port, XM_MMU_CMD,r);
1329
2c668514 1330 switch (id1) {
45bada65
SH		 1331 case PHY_BCOM_ID1_C0:
1332 /*
1333 * Workaround BCOM Errata for the C0 type.
1334 * Write magic patterns to reserved registers.
1335 */
1336 for (i = 0; i < ARRAY_SIZE(C0hack); i++)
1337 xm_phy_write(hw, port,
1338 C0hack[i].reg, C0hack[i].val);
1339
1340 break;
1341 case PHY_BCOM_ID1_A1:
1342 /*
1343 * Workaround BCOM Errata for the A1 type.
1344 * Write magic patterns to reserved registers.
1345 */
1346 for (i = 0; i < ARRAY_SIZE(A1hack); i++)
1347 xm_phy_write(hw, port,
1348 A1hack[i].reg, A1hack[i].val);
1349 break;
1350 }
1351
1352 /*
1353 * Workaround BCOM Errata (#10523) for all BCom PHYs.
1354 * Disable Power Management after reset.
1355 */
1356 r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL);
1357 r |= PHY_B_AC_DIS_PM;
1358 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r);
1359
1360 /* Dummy read */
1361 xm_read16(hw, port, XM_ISRC);
1362
1363 ext = PHY_B_PEC_EN_LTR; /* enable tx led */
1364 ctl = PHY_CT_SP1000; /* always 1000mbit */
1365
1366 if (skge->autoneg == AUTONEG_ENABLE) {
1367 /*
1368 * Workaround BCOM Errata #1 for the C5 type.
1369 * 1000Base-T Link Acquisition Failure in Slave Mode
1370 * Set Repeater/DTE bit 10 of the 1000Base-T Control Register
1371 */
1372 u16 adv = PHY_B_1000C_RD;
1373 if (skge->advertising & ADVERTISED_1000baseT_Half)
1374 adv |= PHY_B_1000C_AHD;
1375 if (skge->advertising & ADVERTISED_1000baseT_Full)
1376 adv |= PHY_B_1000C_AFD;
1377 xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, adv);
1378
1379 ctl |= PHY_CT_ANE | PHY_CT_RE_CFG;
1380 } else {
1381 if (skge->duplex == DUPLEX_FULL)
1382 ctl |= PHY_CT_DUP_MD;
1383 /* Force to slave */
1384 xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, PHY_B_1000C_MSE);
1385 }
1386
1387 /* Set autonegotiation pause parameters */
1388 xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV,
1389 phy_pause_map[skge->flow_control] | PHY_AN_CSMA);
1390
1391 /* Handle Jumbo frames */
64f6b64d 1392 if (hw->dev[port]->mtu > ETH_DATA_LEN) {
45bada65
SH		 1393 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
1394 PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK);
1395
1396 ext |= PHY_B_PEC_HIGH_LA;
1397
1398 }
1399
1400 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ext);
1401 xm_phy_write(hw, port, PHY_BCOM_CTRL, ctl);
1402
8f3f8193 1403 /* Use link status change interrupt */
45bada65 1404 xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
64f6b64d 1405}
45bada65 1406
64f6b64d
SH		 1407static void xm_phy_init(struct skge_port *skge)
1408{
1409 struct skge_hw *hw = skge->hw;
1410 int port = skge->port;
1411 u16 ctrl = 0;
1412
1413 if (skge->autoneg == AUTONEG_ENABLE) {
1414 if (skge->advertising & ADVERTISED_1000baseT_Half)
1415 ctrl |= PHY_X_AN_HD;
1416 if (skge->advertising & ADVERTISED_1000baseT_Full)
1417 ctrl |= PHY_X_AN_FD;
1418
4b67be99 1419 ctrl |= fiber_pause_map[skge->flow_control];
64f6b64d
SH		 1420
1421 xm_phy_write(hw, port, PHY_XMAC_AUNE_ADV, ctrl);
1422
1423 /* Restart Auto-negotiation */
1424 ctrl = PHY_CT_ANE | PHY_CT_RE_CFG;
1425 } else {
1426 /* Set DuplexMode in Config register */
1427 if (skge->duplex == DUPLEX_FULL)
1428 ctrl |= PHY_CT_DUP_MD;
1429 /*
1430 * Do NOT enable Auto-negotiation here. This would hold
1431 * the link down because no IDLEs are transmitted
1432 */
1433 }
1434
1435 xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl);
1436
1437 /* Poll PHY for status changes */
9cbe330f 1438 mod_timer(&skge->link_timer, jiffies + LINK_HZ);
64f6b64d
SH		 1439}
1440
501fb72d 1441static int xm_check_link(struct net_device *dev)
64f6b64d
SH		 1442{
1443 struct skge_port *skge = netdev_priv(dev);
1444 struct skge_hw *hw = skge->hw;
1445 int port = skge->port;
1446 u16 status;
1447
1448 /* read twice because of latch */
501fb72d 1449 xm_phy_read(hw, port, PHY_XMAC_STAT);
64f6b64d
SH		 1450 status = xm_phy_read(hw, port, PHY_XMAC_STAT);
1451
1452 if ((status & PHY_ST_LSYNC) == 0) {
a1bc9b87 1453 xm_link_down(hw, port);
501fb72d 1454 return 0;
64f6b64d
SH		 1455 }
1456
1457 if (skge->autoneg == AUTONEG_ENABLE) {
1458 u16 lpa, res;
1459
1460 if (!(status & PHY_ST_AN_OVER))
501fb72d 1461 return 0;
64f6b64d
SH		 1462
1463 lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP);
1464 if (lpa & PHY_B_AN_RF) {
1465 printk(KERN_NOTICE PFX "%s: remote fault\n",
1466 dev->name);
501fb72d 1467 return 0;
64f6b64d
SH		 1468 }
1469
1470 res = xm_phy_read(hw, port, PHY_XMAC_RES_ABI);
1471
1472 /* Check Duplex mismatch */
1473 switch (res & (PHY_X_RS_HD | PHY_X_RS_FD)) {
1474 case PHY_X_RS_FD:
1475 skge->duplex = DUPLEX_FULL;
1476 break;
1477 case PHY_X_RS_HD:
1478 skge->duplex = DUPLEX_HALF;
1479 break;
1480 default:
1481 printk(KERN_NOTICE PFX "%s: duplex mismatch\n",
1482 dev->name);
501fb72d 1483 return 0;
64f6b64d
SH		 1484 }
1485
1486 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
5d5c8e03
SH		 1487 if ((skge->flow_control == FLOW_MODE_SYMMETRIC ||
1488 skge->flow_control == FLOW_MODE_SYM_OR_REM) &&
1489 (lpa & PHY_X_P_SYM_MD))
1490 skge->flow_status = FLOW_STAT_SYMMETRIC;
1491 else if (skge->flow_control == FLOW_MODE_SYM_OR_REM &&
1492 (lpa & PHY_X_RS_PAUSE) == PHY_X_P_ASYM_MD)
1493 /* Enable PAUSE receive, disable PAUSE transmit */
1494 skge->flow_status = FLOW_STAT_REM_SEND;
1495 else if (skge->flow_control == FLOW_MODE_LOC_SEND &&
1496 (lpa & PHY_X_RS_PAUSE) == PHY_X_P_BOTH_MD)
1497 /* Disable PAUSE receive, enable PAUSE transmit */
1498 skge->flow_status = FLOW_STAT_LOC_SEND;
64f6b64d 1499 else
5d5c8e03 1500 skge->flow_status = FLOW_STAT_NONE;
64f6b64d
SH		 1501
1502 skge->speed = SPEED_1000;
1503 }
1504
1505 if (!netif_carrier_ok(dev))
1506 genesis_link_up(skge);
501fb72d 1507 return 1;
64f6b64d
SH		 1508}
1509
1510/* Poll to check for link coming up.
501fb72d 1511 *
64f6b64d 1512 * Since internal PHY is wired to a level triggered pin, can't
501fb72d
SH		 1513 * get an interrupt when carrier is detected, need to poll for
1514 * link coming up.
64f6b64d 1515 */
9cbe330f 1516static void xm_link_timer(unsigned long arg)
64f6b64d 1517{
9cbe330f 1518 struct skge_port *skge = (struct skge_port *) arg;
c4028958 1519 struct net_device *dev = skge->netdev;
64f6b64d
SH		 1520 struct skge_hw *hw = skge->hw;
1521 int port = skge->port;
501fb72d
SH		 1522 int i;
1523 unsigned long flags;
64f6b64d
SH		 1524
1525 if (!netif_running(dev))
1526 return;
1527
501fb72d
SH		 1528 spin_lock_irqsave(&hw->phy_lock, flags);
1529
1530 /*
1531 * Verify that the link by checking GPIO register three times.
1532 * This pin has the signal from the link_sync pin connected to it.
1533 */
1534 for (i = 0; i < 3; i++) {
1535 if (xm_read16(hw, port, XM_GP_PORT) & XM_GP_INP_ASS)
1536 goto link_down;
1537 }
1538
1539 /* Re-enable interrupt to detect link down */
1540 if (xm_check_link(dev)) {
1541 u16 msk = xm_read16(hw, port, XM_IMSK);
1542 msk &= ~XM_IS_INP_ASS;
1543 xm_write16(hw, port, XM_IMSK, msk);
64f6b64d 1544 xm_read16(hw, port, XM_ISRC);
64f6b64d 1545 } else {
501fb72d
SH		 1546link_down:
1547 mod_timer(&skge->link_timer,
1548 round_jiffies(jiffies + LINK_HZ));
64f6b64d 1549 }
501fb72d 1550 spin_unlock_irqrestore(&hw->phy_lock, flags);
45bada65
SH		 1551}
1552
1553static void genesis_mac_init(struct skge_hw *hw, int port)
1554{
1555 struct net_device *dev = hw->dev[port];
1556 struct skge_port *skge = netdev_priv(dev);
1557 int jumbo = hw->dev[port]->mtu > ETH_DATA_LEN;
1558 int i;
1559 u32 r;
1560 const u8 zero[6] = { 0 };
1561
0781191c
SH		 1562 for (i = 0; i < 10; i++) {
1563 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
1564 MFF_SET_MAC_RST);
1565 if (skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST)
1566 goto reset_ok;
1567 udelay(1);
1568 }
baef58b1 1569
0781191c
SH		 1570 printk(KERN_WARNING PFX "%s: genesis reset failed\n", dev->name);
1571
1572 reset_ok:
baef58b1 1573 /* Unreset the XMAC. */
6b0c1480 1574 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
baef58b1
SH		 1575
1576 /*
1577 * Perform additional initialization for external PHYs,
1578 * namely for the 1000baseTX cards that use the XMAC's
1579 * GMII mode.
1580 */
64f6b64d
SH		 1581 if (hw->phy_type != SK_PHY_XMAC) {
1582 /* Take external Phy out of reset */
1583 r = skge_read32(hw, B2_GP_IO);
1584 if (port == 0)
1585 r |= GP_DIR_0|GP_IO_0;
1586 else
1587 r |= GP_DIR_2|GP_IO_2;
89bf5f23 1588
64f6b64d 1589 skge_write32(hw, B2_GP_IO, r);
0781191c 1590
64f6b64d
SH		 1591 /* Enable GMII interface */
1592 xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD);
1593 }
89bf5f23 1594
89bf5f23 1595
64f6b64d
SH		 1596 switch(hw->phy_type) {
1597 case SK_PHY_XMAC:
1598 xm_phy_init(skge);
1599 break;
1600 case SK_PHY_BCOM:
1601 bcom_phy_init(skge);
1602 bcom_check_link(hw, port);
1603 }
89bf5f23 1604
45bada65
SH		 1605 /* Set Station Address */
1606 xm_outaddr(hw, port, XM_SA, dev->dev_addr);
89bf5f23 1607
45bada65
SH		 1608 /* We don't use match addresses so clear */
1609 for (i = 1; i < 16; i++)
1610 xm_outaddr(hw, port, XM_EXM(i), zero);
1611
0781191c
SH		 1612 /* Clear MIB counters */
1613 xm_write16(hw, port, XM_STAT_CMD,
1614 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1615 /* Clear two times according to Errata #3 */
1616 xm_write16(hw, port, XM_STAT_CMD,
1617 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1618
45bada65
SH		 1619 /* configure Rx High Water Mark (XM_RX_HI_WM) */
1620 xm_write16(hw, port, XM_RX_HI_WM, 1450);
1621
1622 /* We don't need the FCS appended to the packet. */
1623 r = XM_RX_LENERR_OK | XM_RX_STRIP_FCS;
1624 if (jumbo)
1625 r |= XM_RX_BIG_PK_OK;
89bf5f23 1626
45bada65 1627 if (skge->duplex == DUPLEX_HALF) {
89bf5f23 1628 /*
45bada65
SH		 1629 * If in manual half duplex mode the other side might be in
1630 * full duplex mode, so ignore if a carrier extension is not seen
1631 * on frames received
89bf5f23 1632 */
45bada65 1633 r |= XM_RX_DIS_CEXT;
baef58b1 1634 }
45bada65 1635 xm_write16(hw, port, XM_RX_CMD, r);
baef58b1 1636
baef58b1 1637 /* We want short frames padded to 60 bytes. */
45bada65
SH		 1638 xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD);
1639
485982a9
SH		 1640 /* Increase threshold for jumbo frames on dual port */
1641 if (hw->ports > 1 && jumbo)
1642 xm_write16(hw, port, XM_TX_THR, 1020);
1643 else
1644 xm_write16(hw, port, XM_TX_THR, 512);
baef58b1
SH		 1645
1646 /*
1647 * Enable the reception of all error frames. This is is
1648 * a necessary evil due to the design of the XMAC. The
1649 * XMAC's receive FIFO is only 8K in size, however jumbo
1650 * frames can be up to 9000 bytes in length. When bad
1651 * frame filtering is enabled, the XMAC's RX FIFO operates
1652 * in 'store and forward' mode. For this to work, the
1653 * entire frame has to fit into the FIFO, but that means
1654 * that jumbo frames larger than 8192 bytes will be
1655 * truncated. Disabling all bad frame filtering causes
1656 * the RX FIFO to operate in streaming mode, in which
8f3f8193 1657 * case the XMAC will start transferring frames out of the
baef58b1
SH		 1658 * RX FIFO as soon as the FIFO threshold is reached.
1659 */
45bada65 1660 xm_write32(hw, port, XM_MODE, XM_DEF_MODE);
baef58b1 1661
baef58b1
SH		 1662
1663 /*
45bada65
SH		 1664 * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK)
1665 * - Enable all bits excepting 'Octets Rx OK Low CntOv'
1666 * and 'Octets Rx OK Hi Cnt Ov'.
baef58b1 1667 */
45bada65
SH		 1668 xm_write32(hw, port, XM_RX_EV_MSK, XMR_DEF_MSK);
1669
1670 /*
1671 * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK)
1672 * - Enable all bits excepting 'Octets Tx OK Low CntOv'
1673 * and 'Octets Tx OK Hi Cnt Ov'.
1674 */
1675 xm_write32(hw, port, XM_TX_EV_MSK, XMT_DEF_MSK);
baef58b1
SH		 1676
1677 /* Configure MAC arbiter */
1678 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
1679
1680 /* configure timeout values */
1681 skge_write8(hw, B3_MA_TOINI_RX1, 72);
1682 skge_write8(hw, B3_MA_TOINI_RX2, 72);
1683 skge_write8(hw, B3_MA_TOINI_TX1, 72);
1684 skge_write8(hw, B3_MA_TOINI_TX2, 72);
1685
1686 skge_write8(hw, B3_MA_RCINI_RX1, 0);
1687 skge_write8(hw, B3_MA_RCINI_RX2, 0);
1688 skge_write8(hw, B3_MA_RCINI_TX1, 0);
1689 skge_write8(hw, B3_MA_RCINI_TX2, 0);
1690
1691 /* Configure Rx MAC FIFO */
6b0c1480
SH		 1692 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR);
1693 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT);
1694 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD);
baef58b1
SH		 1695
1696 /* Configure Tx MAC FIFO */
6b0c1480
SH		 1697 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR);
1698 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF);
1699 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD);
baef58b1 1700
45bada65 1701 if (jumbo) {
baef58b1 1702 /* Enable frame flushing if jumbo frames used */
6b0c1480 1703 skge_write16(hw, SK_REG(port,RX_MFF_CTRL1), MFF_ENA_FLUSH);
baef58b1
SH		 1704 } else {
1705 /* enable timeout timers if normal frames */
1706 skge_write16(hw, B3_PA_CTRL,
45bada65 1707 (port == 0) ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2);
baef58b1 1708 }
baef58b1
SH		 1709}
1710
1711static void genesis_stop(struct skge_port *skge)
1712{
1713 struct skge_hw *hw = skge->hw;
1714 int port = skge->port;
799b21d2 1715 unsigned retries = 1000;
21d7f677
SH		 1716 u16 cmd;
1717
1718 /* Disable Tx and Rx */
1719 cmd = xm_read16(hw, port, XM_MMU_CMD);
1720 cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX);
1721 xm_write16(hw, port, XM_MMU_CMD, cmd);
baef58b1 1722
46a60f2d
SH		 1723 genesis_reset(hw, port);
1724
baef58b1
SH		 1725 /* Clear Tx packet arbiter timeout IRQ */
1726 skge_write16(hw, B3_PA_CTRL,
1727 port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2);
1728
baef58b1 1729 /* Reset the MAC */
799b21d2
SH		 1730 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
1731 do {
1732 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST);
1733 if (!(skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST))
1734 break;
1735 } while (--retries > 0);
baef58b1
SH		 1736
1737 /* For external PHYs there must be special handling */
64f6b64d 1738 if (hw->phy_type != SK_PHY_XMAC) {
799b21d2 1739 u32 reg = skge_read32(hw, B2_GP_IO);
64f6b64d
SH		 1740 if (port == 0) {
1741 reg |= GP_DIR_0;
1742 reg &= ~GP_IO_0;
1743 } else {
1744 reg |= GP_DIR_2;
1745 reg &= ~GP_IO_2;
1746 }
1747 skge_write32(hw, B2_GP_IO, reg);
1748 skge_read32(hw, B2_GP_IO);
baef58b1
SH		 1749 }
1750
6b0c1480
SH		 1751 xm_write16(hw, port, XM_MMU_CMD,
1752 xm_read16(hw, port, XM_MMU_CMD)
baef58b1
SH		 1753 & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
1754
6b0c1480 1755 xm_read16(hw, port, XM_MMU_CMD);
baef58b1
SH		 1756}
1757
1758
1759static void genesis_get_stats(struct skge_port *skge, u64 *data)
1760{
1761 struct skge_hw *hw = skge->hw;
1762 int port = skge->port;
1763 int i;
1764 unsigned long timeout = jiffies + HZ;
1765
6b0c1480 1766 xm_write16(hw, port,
baef58b1
SH		 1767 XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC);
1768
1769 /* wait for update to complete */
6b0c1480 1770 while (xm_read16(hw, port, XM_STAT_CMD)
baef58b1
SH		 1771 & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) {
1772 if (time_after(jiffies, timeout))
1773 break;
1774 udelay(10);
1775 }
1776
1777 /* special case for 64 bit octet counter */
6b0c1480
SH		 1778 data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32
1779 | xm_read32(hw, port, XM_TXO_OK_LO);
1780 data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32
1781 | xm_read32(hw, port, XM_RXO_OK_LO);
baef58b1
SH		 1782
1783 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
6b0c1480 1784 data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset);
baef58b1
SH		 1785}
1786
1787static void genesis_mac_intr(struct skge_hw *hw, int port)
1788{
da00772f
SH		 1789 struct net_device *dev = hw->dev[port];
1790 struct skge_port *skge = netdev_priv(dev);
6b0c1480 1791 u16 status = xm_read16(hw, port, XM_ISRC);
baef58b1 1792
7e676d91
SH		 1793 if (netif_msg_intr(skge))
1794 printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n",
da00772f 1795 dev->name, status);
baef58b1 1796
501fb72d
SH		 1797 if (hw->phy_type == SK_PHY_XMAC && (status & XM_IS_INP_ASS)) {
1798 xm_link_down(hw, port);
1799 mod_timer(&skge->link_timer, jiffies + 1);
1800 }
a1bc9b87 1801
baef58b1 1802 if (status & XM_IS_TXF_UR) {
6b0c1480 1803 xm_write32(hw, port, XM_MODE, XM_MD_FTF);
da00772f 1804 ++dev->stats.tx_fifo_errors;
baef58b1 1805 }
baef58b1
SH		 1806}
1807
baef58b1
SH		 1808static void genesis_link_up(struct skge_port *skge)
1809{
1810 struct skge_hw *hw = skge->hw;
1811 int port = skge->port;
a1bc9b87 1812 u16 cmd, msk;
64f6b64d 1813 u32 mode;
baef58b1 1814
6b0c1480 1815 cmd = xm_read16(hw, port, XM_MMU_CMD);
baef58b1
SH		 1816
1817 /*
1818 * enabling pause frame reception is required for 1000BT
1819 * because the XMAC is not reset if the link is going down
1820 */
5d5c8e03
SH		 1821 if (skge->flow_status == FLOW_STAT_NONE ||
1822 skge->flow_status == FLOW_STAT_LOC_SEND)
7e676d91 1823 /* Disable Pause Frame Reception */
baef58b1
SH		 1824 cmd |= XM_MMU_IGN_PF;
1825 else
1826 /* Enable Pause Frame Reception */
1827 cmd &= ~XM_MMU_IGN_PF;
1828
6b0c1480 1829 xm_write16(hw, port, XM_MMU_CMD, cmd);
baef58b1 1830
6b0c1480 1831 mode = xm_read32(hw, port, XM_MODE);
5d5c8e03
SH		 1832 if (skge->flow_status== FLOW_STAT_SYMMETRIC ||
1833 skge->flow_status == FLOW_STAT_LOC_SEND) {
baef58b1
SH		 1834 /*
1835 * Configure Pause Frame Generation
1836 * Use internal and external Pause Frame Generation.
1837 * Sending pause frames is edge triggered.
1838 * Send a Pause frame with the maximum pause time if
1839 * internal oder external FIFO full condition occurs.
1840 * Send a zero pause time frame to re-start transmission.
1841 */
1842 /* XM_PAUSE_DA = '010000C28001' (default) */
1843 /* XM_MAC_PTIME = 0xffff (maximum) */
1844 /* remember this value is defined in big endian (!) */
6b0c1480 1845 xm_write16(hw, port, XM_MAC_PTIME, 0xffff);
baef58b1
SH		 1846
1847 mode |= XM_PAUSE_MODE;
6b0c1480 1848 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE);
baef58b1
SH		 1849 } else {
1850 /*
1851 * disable pause frame generation is required for 1000BT
1852 * because the XMAC is not reset if the link is going down
1853 */
1854 /* Disable Pause Mode in Mode Register */
1855 mode &= ~XM_PAUSE_MODE;
1856
6b0c1480 1857 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE);
baef58b1
SH		 1858 }
1859
6b0c1480 1860 xm_write32(hw, port, XM_MODE, mode);
a1bc9b87 1861
d08b9bdf 1862 /* Turn on detection of Tx underrun */
501fb72d 1863 msk = xm_read16(hw, port, XM_IMSK);
d08b9bdf 1864 msk &= ~XM_IS_TXF_UR;
a1bc9b87 1865 xm_write16(hw, port, XM_IMSK, msk);
501fb72d 1866
6b0c1480 1867 xm_read16(hw, port, XM_ISRC);
baef58b1
SH		 1868
1869 /* get MMU Command Reg. */
6b0c1480 1870 cmd = xm_read16(hw, port, XM_MMU_CMD);
64f6b64d 1871 if (hw->phy_type != SK_PHY_XMAC && skge->duplex == DUPLEX_FULL)
baef58b1
SH		 1872 cmd |= XM_MMU_GMII_FD;
1873
89bf5f23
SH		 1874 /*
1875 * Workaround BCOM Errata (#10523) for all BCom Phys
1876 * Enable Power Management after link up
1877 */
64f6b64d
SH		 1878 if (hw->phy_type == SK_PHY_BCOM) {
1879 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
1880 xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL)
1881 & ~PHY_B_AC_DIS_PM);
1882 xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
1883 }
baef58b1
SH		 1884
1885 /* enable Rx/Tx */
6b0c1480 1886 xm_write16(hw, port, XM_MMU_CMD,
baef58b1
SH		 1887 cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX);
1888 skge_link_up(skge);
1889}
1890
1891
45bada65 1892static inline void bcom_phy_intr(struct skge_port *skge)
baef58b1
SH		 1893{
1894 struct skge_hw *hw = skge->hw;
1895 int port = skge->port;
45bada65
SH		 1896 u16 isrc;
1897
1898 isrc = xm_phy_read(hw, port, PHY_BCOM_INT_STAT);
7e676d91
SH		 1899 if (netif_msg_intr(skge))
1900 printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x\n",
1901 skge->netdev->name, isrc);
baef58b1 1902
45bada65
SH		 1903 if (isrc & PHY_B_IS_PSE)
1904 printk(KERN_ERR PFX "%s: uncorrectable pair swap error\n",
1905 hw->dev[port]->name);
baef58b1
SH		 1906
1907 /* Workaround BCom Errata:
1908 * enable and disable loopback mode if "NO HCD" occurs.
1909 */
45bada65 1910 if (isrc & PHY_B_IS_NO_HDCL) {
6b0c1480
SH		 1911 u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL);
1912 xm_phy_write(hw, port, PHY_BCOM_CTRL,
baef58b1 1913 ctrl | PHY_CT_LOOP);
6b0c1480 1914 xm_phy_write(hw, port, PHY_BCOM_CTRL,
baef58b1
SH		 1915 ctrl & ~PHY_CT_LOOP);
1916 }
1917
45bada65
SH		 1918 if (isrc & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE))
1919 bcom_check_link(hw, port);
baef58b1 1920
baef58b1
SH		 1921}
1922
2cd8e5d3
SH		 1923static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
1924{
1925 int i;
1926
1927 gma_write16(hw, port, GM_SMI_DATA, val);
1928 gma_write16(hw, port, GM_SMI_CTRL,
1929 GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg));
1930 for (i = 0; i < PHY_RETRIES; i++) {
1931 udelay(1);
1932
1933 if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
1934 return 0;
1935 }
1936
1937 printk(KERN_WARNING PFX "%s: phy write timeout\n",
1938 hw->dev[port]->name);
1939 return -EIO;
1940}
1941
1942static int __gm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
1943{
1944 int i;
1945
1946 gma_write16(hw, port, GM_SMI_CTRL,
1947 GM_SMI_CT_PHY_AD(hw->phy_addr)
1948 | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
1949
1950 for (i = 0; i < PHY_RETRIES; i++) {
1951 udelay(1);
1952 if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL)
1953 goto ready;
1954 }
1955
1956 return -ETIMEDOUT;
1957 ready:
1958 *val = gma_read16(hw, port, GM_SMI_DATA);
1959 return 0;
1960}
1961
1962static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg)
1963{
1964 u16 v = 0;
1965 if (__gm_phy_read(hw, port, reg, &v))
1966 printk(KERN_WARNING PFX "%s: phy read timeout\n",
1967 hw->dev[port]->name);
1968 return v;
1969}
1970
8f3f8193 1971/* Marvell Phy Initialization */
baef58b1
SH		 1972static void yukon_init(struct skge_hw *hw, int port)
1973{
1974 struct skge_port *skge = netdev_priv(hw->dev[port]);
1975 u16 ctrl, ct1000, adv;
baef58b1 1976
baef58b1 1977 if (skge->autoneg == AUTONEG_ENABLE) {
6b0c1480 1978 u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
baef58b1
SH		 1979
1980 ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
1981 PHY_M_EC_MAC_S_MSK);
1982 ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
1983
c506a509 1984 ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
baef58b1 1985
6b0c1480 1986 gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
baef58b1
SH		 1987 }
1988
6b0c1480 1989 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
baef58b1
SH		 1990 if (skge->autoneg == AUTONEG_DISABLE)
1991 ctrl &= ~PHY_CT_ANE;
1992
1993 ctrl |= PHY_CT_RESET;
6b0c1480 1994 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
baef58b1
SH		 1995
1996 ctrl = 0;
1997 ct1000 = 0;
b18f2091 1998 adv = PHY_AN_CSMA;
baef58b1
SH		 1999
2000 if (skge->autoneg == AUTONEG_ENABLE) {
5e1705dd 2001 if (hw->copper) {
baef58b1
SH		 2002 if (skge->advertising & ADVERTISED_1000baseT_Full)
2003 ct1000 |= PHY_M_1000C_AFD;
2004 if (skge->advertising & ADVERTISED_1000baseT_Half)
2005 ct1000 |= PHY_M_1000C_AHD;
2006 if (skge->advertising & ADVERTISED_100baseT_Full)
2007 adv |= PHY_M_AN_100_FD;
2008 if (skge->advertising & ADVERTISED_100baseT_Half)
2009 adv |= PHY_M_AN_100_HD;
2010 if (skge->advertising & ADVERTISED_10baseT_Full)
2011 adv |= PHY_M_AN_10_FD;
2012 if (skge->advertising & ADVERTISED_10baseT_Half)
2013 adv |= PHY_M_AN_10_HD;
baef58b1 2014
4b67be99
SH		 2015 /* Set Flow-control capabilities */
2016 adv |= phy_pause_map[skge->flow_control];
2017 } else {
2018 if (skge->advertising & ADVERTISED_1000baseT_Full)
2019 adv |= PHY_M_AN_1000X_AFD;
2020 if (skge->advertising & ADVERTISED_1000baseT_Half)
2021 adv |= PHY_M_AN_1000X_AHD;
2022
2023 adv |= fiber_pause_map[skge->flow_control];
2024 }
45bada65 2025
baef58b1
SH		 2026 /* Restart Auto-negotiation */
2027 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
2028 } else {
2029 /* forced speed/duplex settings */
2030 ct1000 = PHY_M_1000C_MSE;
2031
2032 if (skge->duplex == DUPLEX_FULL)
2033 ctrl |= PHY_CT_DUP_MD;
2034
2035 switch (skge->speed) {
2036 case SPEED_1000:
2037 ctrl |= PHY_CT_SP1000;
2038 break;
2039 case SPEED_100:
2040 ctrl |= PHY_CT_SP100;
2041 break;
2042 }
2043
2044 ctrl |= PHY_CT_RESET;
2045 }
2046
c506a509 2047 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
baef58b1 2048
6b0c1480
SH		 2049 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
2050 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
baef58b1 2051
baef58b1
SH		 2052 /* Enable phy interrupt on autonegotiation complete (or link up) */
2053 if (skge->autoneg == AUTONEG_ENABLE)
4cde06ed 2054 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_MSK);
baef58b1 2055 else
4cde06ed 2056 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
baef58b1
SH		 2057}
2058
2059static void yukon_reset(struct skge_hw *hw, int port)
2060{
6b0c1480
SH		 2061 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */
2062 gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
2063 gma_write16(hw, port, GM_MC_ADDR_H2, 0);
2064 gma_write16(hw, port, GM_MC_ADDR_H3, 0);
2065 gma_write16(hw, port, GM_MC_ADDR_H4, 0);
baef58b1 2066
6b0c1480
SH		 2067 gma_write16(hw, port, GM_RX_CTRL,
2068 gma_read16(hw, port, GM_RX_CTRL)
baef58b1
SH		 2069 | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
2070}
2071
c8868611
SH		 2072/* Apparently, early versions of Yukon-Lite had wrong chip_id? */
2073static int is_yukon_lite_a0(struct skge_hw *hw)
2074{
2075 u32 reg;
2076 int ret;
2077
2078 if (hw->chip_id != CHIP_ID_YUKON)
2079 return 0;
2080
2081 reg = skge_read32(hw, B2_FAR);
2082 skge_write8(hw, B2_FAR + 3, 0xff);
2083 ret = (skge_read8(hw, B2_FAR + 3) != 0);
2084 skge_write32(hw, B2_FAR, reg);
2085 return ret;
2086}
2087
baef58b1
SH		 2088static void yukon_mac_init(struct skge_hw *hw, int port)
2089{
2090 struct skge_port *skge = netdev_priv(hw->dev[port]);
2091 int i;
2092 u32 reg;
2093 const u8 *addr = hw->dev[port]->dev_addr;
2094
2095 /* WA code for COMA mode -- set PHY reset */
2096 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
46a60f2d
SH		 2097 hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
2098 reg = skge_read32(hw, B2_GP_IO);
2099 reg |= GP_DIR_9 | GP_IO_9;
2100 skge_write32(hw, B2_GP_IO, reg);
2101 }
baef58b1
SH		 2102
2103 /* hard reset */
6b0c1480
SH		 2104 skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
2105 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
baef58b1
SH		 2106
2107 /* WA code for COMA mode -- clear PHY reset */
2108 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
46a60f2d
SH		 2109 hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
2110 reg = skge_read32(hw, B2_GP_IO);
2111 reg |= GP_DIR_9;
2112 reg &= ~GP_IO_9;
2113 skge_write32(hw, B2_GP_IO, reg);
2114 }
baef58b1
SH		 2115
2116 /* Set hardware config mode */
2117 reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP |
2118 GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE;
5e1705dd 2119 reg |= hw->copper ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB;
baef58b1
SH		 2120
2121 /* Clear GMC reset */
6b0c1480
SH		 2122 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET);
2123 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR);
2124 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR);
564f9abb 2125
baef58b1
SH		 2126 if (skge->autoneg == AUTONEG_DISABLE) {
2127 reg = GM_GPCR_AU_ALL_DIS;
6b0c1480
SH		 2128 gma_write16(hw, port, GM_GP_CTRL,
2129 gma_read16(hw, port, GM_GP_CTRL) | reg);
baef58b1
SH		 2130
2131 switch (skge->speed) {
2132 case SPEED_1000:
564f9abb 2133 reg &= ~GM_GPCR_SPEED_100;
baef58b1 2134 reg |= GM_GPCR_SPEED_1000;
564f9abb 2135 break;
baef58b1 2136 case SPEED_100:
564f9abb 2137 reg &= ~GM_GPCR_SPEED_1000;
baef58b1 2138 reg |= GM_GPCR_SPEED_100;
564f9abb
SH		 2139 break;
2140 case SPEED_10:
2141 reg &= ~(GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100);
2142 break;
baef58b1
SH		 2143 }
2144
2145 if (skge->duplex == DUPLEX_FULL)
2146 reg |= GM_GPCR_DUP_FULL;
2147 } else
2148 reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
564f9abb 2149
baef58b1
SH		 2150 switch (skge->flow_control) {
2151 case FLOW_MODE_NONE:
6b0c1480 2152 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
baef58b1
SH		 2153 reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
2154 break;
2155 case FLOW_MODE_LOC_SEND:
2156 /* disable Rx flow-control */
2157 reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
5d5c8e03
SH		 2158 break;
2159 case FLOW_MODE_SYMMETRIC:
2160 case FLOW_MODE_SYM_OR_REM:
2161 /* enable Tx & Rx flow-control */
2162 break;
baef58b1
SH		 2163 }
2164
6b0c1480 2165 gma_write16(hw, port, GM_GP_CTRL, reg);
46a60f2d 2166 skge_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
baef58b1 2167
baef58b1 2168 yukon_init(hw, port);
baef58b1
SH		 2169
2170 /* MIB clear */
6b0c1480
SH		 2171 reg = gma_read16(hw, port, GM_PHY_ADDR);
2172 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
baef58b1
SH		 2173
2174 for (i = 0; i < GM_MIB_CNT_SIZE; i++)
6b0c1480
SH		 2175 gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i);
2176 gma_write16(hw, port, GM_PHY_ADDR, reg);
baef58b1
SH		 2177
2178 /* transmit control */
6b0c1480 2179 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
baef58b1
SH		 2180
2181 /* receive control reg: unicast + multicast + no FCS */
6b0c1480 2182 gma_write16(hw, port, GM_RX_CTRL,
baef58b1
SH		 2183 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
2184
2185 /* transmit flow control */
6b0c1480 2186 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
baef58b1
SH		 2187
2188 /* transmit parameter */
6b0c1480 2189 gma_write16(hw, port, GM_TX_PARAM,
baef58b1
SH		 2190 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
2191 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
2192 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF));
2193
44c7fcce
SH		 2194 /* configure the Serial Mode Register */
2195 reg = DATA_BLIND_VAL(DATA_BLIND_DEF)
2196 | GM_SMOD_VLAN_ENA
2197 | IPG_DATA_VAL(IPG_DATA_DEF);
2198
2199 if (hw->dev[port]->mtu > ETH_DATA_LEN)
baef58b1
SH		 2200 reg |= GM_SMOD_JUMBO_ENA;
2201
6b0c1480 2202 gma_write16(hw, port, GM_SERIAL_MODE, reg);
baef58b1
SH		 2203
2204 /* physical address: used for pause frames */
6b0c1480 2205 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
baef58b1 2206 /* virtual address for data */
6b0c1480 2207 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
baef58b1
SH		 2208
2209 /* enable interrupt mask for counter overflows */
6b0c1480
SH		 2210 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
2211 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
2212 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
baef58b1
SH		 2213
2214 /* Initialize Mac Fifo */
2215
2216 /* Configure Rx MAC FIFO */
6b0c1480 2217 skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK);
baef58b1 2218 reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
c8868611
SH		 2219
2220 /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */
2221 if (is_yukon_lite_a0(hw))
baef58b1 2222 reg &= ~GMF_RX_F_FL_ON;
c8868611 2223
6b0c1480
SH		 2224 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
2225 skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg);
c5923081
SH		 2226 /*
2227 * because Pause Packet Truncation in GMAC is not working
2228 * we have to increase the Flush Threshold to 64 bytes
2229 * in order to flush pause packets in Rx FIFO on Yukon-1
2230 */
2231 skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1);
baef58b1
SH		 2232
2233 /* Configure Tx MAC FIFO */
6b0c1480
SH		 2234 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
2235 skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
baef58b1
SH		 2236}
2237
355ec572
SH		 2238/* Go into power down mode */
2239static void yukon_suspend(struct skge_hw *hw, int port)
2240{
2241 u16 ctrl;
2242
2243 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
2244 ctrl |= PHY_M_PC_POL_R_DIS;
2245 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
2246
2247 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
2248 ctrl |= PHY_CT_RESET;
2249 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
2250
2251 /* switch IEEE compatible power down mode on */
2252 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
2253 ctrl |= PHY_CT_PDOWN;
2254 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
2255}
2256
baef58b1
SH		 2257static void yukon_stop(struct skge_port *skge)
2258{
2259 struct skge_hw *hw = skge->hw;
2260 int port = skge->port;
2261
46a60f2d
SH		 2262 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
2263 yukon_reset(hw, port);
baef58b1 2264
6b0c1480
SH		 2265 gma_write16(hw, port, GM_GP_CTRL,
2266 gma_read16(hw, port, GM_GP_CTRL)
0eedf4ac 2267 & ~(GM_GPCR_TX_ENA|GM_GPCR_RX_ENA));
6b0c1480 2268 gma_read16(hw, port, GM_GP_CTRL);
baef58b1 2269
355ec572 2270 yukon_suspend(hw, port);
46a60f2d 2271
baef58b1 2272 /* set GPHY Control reset */
46a60f2d
SH		 2273 skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
2274 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
baef58b1
SH		 2275}
2276
2277static void yukon_get_stats(struct skge_port *skge, u64 *data)
2278{
2279 struct skge_hw *hw = skge->hw;
2280 int port = skge->port;
2281 int i;
2282
6b0c1480
SH		 2283 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
2284 | gma_read32(hw, port, GM_TXO_OK_LO);
2285 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
2286 | gma_read32(hw, port, GM_RXO_OK_LO);
baef58b1
SH		 2287
2288 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
6b0c1480 2289 data[i] = gma_read32(hw, port,
baef58b1
SH		 2290 skge_stats[i].gma_offset);
2291}
2292
2293static void yukon_mac_intr(struct skge_hw *hw, int port)
2294{
7e676d91
SH		 2295 struct net_device *dev = hw->dev[port];
2296 struct skge_port *skge = netdev_priv(dev);
6b0c1480 2297 u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
baef58b1 2298
7e676d91
SH		 2299 if (netif_msg_intr(skge))
2300 printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n",
2301 dev->name, status);
2302
baef58b1 2303 if (status & GM_IS_RX_FF_OR) {
da00772f 2304 ++dev->stats.rx_fifo_errors;
d8a09943 2305 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
baef58b1 2306 }
d8a09943 2307
baef58b1 2308 if (status & GM_IS_TX_FF_UR) {
da00772f 2309 ++dev->stats.tx_fifo_errors;
d8a09943 2310 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
baef58b1
SH		 2311 }
2312
2313}
2314
2315static u16 yukon_speed(const struct skge_hw *hw, u16 aux)
2316{
95566065 2317 switch (aux & PHY_M_PS_SPEED_MSK) {
baef58b1
SH		 2318 case PHY_M_PS_SPEED_1000:
2319 return SPEED_1000;
2320 case PHY_M_PS_SPEED_100:
2321 return SPEED_100;
2322 default:
2323 return SPEED_10;
2324 }
2325}
2326
2327static void yukon_link_up(struct skge_port *skge)
2328{
2329 struct skge_hw *hw = skge->hw;
2330 int port = skge->port;
2331 u16 reg;
2332
baef58b1 2333 /* Enable Transmit FIFO Underrun */
46a60f2d 2334 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
baef58b1 2335
6b0c1480 2336 reg = gma_read16(hw, port, GM_GP_CTRL);
baef58b1
SH		 2337 if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE)
2338 reg |= GM_GPCR_DUP_FULL;
2339
2340 /* enable Rx/Tx */
2341 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
6b0c1480 2342 gma_write16(hw, port, GM_GP_CTRL, reg);
baef58b1 2343
4cde06ed 2344 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
baef58b1
SH		 2345 skge_link_up(skge);
2346}
2347
2348static void yukon_link_down(struct skge_port *skge)
2349{
2350 struct skge_hw *hw = skge->hw;
2351 int port = skge->port;
d8a09943 2352 u16 ctrl;
baef58b1 2353
d8a09943
SH		 2354 ctrl = gma_read16(hw, port, GM_GP_CTRL);
2355 ctrl &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
2356 gma_write16(hw, port, GM_GP_CTRL, ctrl);
baef58b1 2357
5d5c8e03
SH		 2358 if (skge->flow_status == FLOW_STAT_REM_SEND) {
2359 ctrl = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV);
2360 ctrl |= PHY_M_AN_ASP;
baef58b1 2361 /* restore Asymmetric Pause bit */
5d5c8e03 2362 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, ctrl);
baef58b1
SH		 2363 }
2364
baef58b1
SH		 2365 skge_link_down(skge);
2366
2367 yukon_init(hw, port);
2368}
2369
2370static void yukon_phy_intr(struct skge_port *skge)
2371{
2372 struct skge_hw *hw = skge->hw;
2373 int port = skge->port;
2374 const char *reason = NULL;
2375 u16 istatus, phystat;
2376
6b0c1480
SH		 2377 istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
2378 phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
7e676d91
SH		 2379
2380 if (netif_msg_intr(skge))
2381 printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x 0x%x\n",
2382 skge->netdev->name, istatus, phystat);
baef58b1
SH		 2383
2384 if (istatus & PHY_M_IS_AN_COMPL) {
6b0c1480 2385 if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP)
baef58b1
SH		 2386 & PHY_M_AN_RF) {
2387 reason = "remote fault";
2388 goto failed;
2389 }
2390
c506a509 2391 if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) {
baef58b1
SH		 2392 reason = "master/slave fault";
2393 goto failed;
2394 }
2395
2396 if (!(phystat & PHY_M_PS_SPDUP_RES)) {
2397 reason = "speed/duplex";
2398 goto failed;
2399 }
2400
2401 skge->duplex = (phystat & PHY_M_PS_FULL_DUP)
2402 ? DUPLEX_FULL : DUPLEX_HALF;
2403 skge->speed = yukon_speed(hw, phystat);
2404
baef58b1
SH		 2405 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
2406 switch (phystat & PHY_M_PS_PAUSE_MSK) {
2407 case PHY_M_PS_PAUSE_MSK:
5d5c8e03 2408 skge->flow_status = FLOW_STAT_SYMMETRIC;
baef58b1
SH		 2409 break;
2410 case PHY_M_PS_RX_P_EN:
5d5c8e03 2411 skge->flow_status = FLOW_STAT_REM_SEND;
baef58b1
SH		 2412 break;
2413 case PHY_M_PS_TX_P_EN:
5d5c8e03 2414 skge->flow_status = FLOW_STAT_LOC_SEND;
baef58b1
SH		 2415 break;
2416 default:
5d5c8e03 2417 skge->flow_status = FLOW_STAT_NONE;
baef58b1
SH		 2418 }
2419
5d5c8e03 2420 if (skge->flow_status == FLOW_STAT_NONE ||
baef58b1 2421 (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF))
6b0c1480 2422 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
baef58b1 2423 else
6b0c1480 2424 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
baef58b1
SH		 2425 yukon_link_up(skge);
2426 return;
2427 }
2428
2429 if (istatus & PHY_M_IS_LSP_CHANGE)
2430 skge->speed = yukon_speed(hw, phystat);
2431
2432 if (istatus & PHY_M_IS_DUP_CHANGE)
2433 skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
2434 if (istatus & PHY_M_IS_LST_CHANGE) {
2435 if (phystat & PHY_M_PS_LINK_UP)
2436 yukon_link_up(skge);
2437 else
2438 yukon_link_down(skge);
2439 }
2440 return;
2441 failed:
2442 printk(KERN_ERR PFX "%s: autonegotiation failed (%s)\n",
2443 skge->netdev->name, reason);
2444
2445 /* XXX restart autonegotiation? */
2446}
2447
ee294dcd
SH		 2448static void skge_phy_reset(struct skge_port *skge)
2449{
2450 struct skge_hw *hw = skge->hw;
2451 int port = skge->port;
aae343d4 2452 struct net_device *dev = hw->dev[port];
ee294dcd
SH		 2453
2454 netif_stop_queue(skge->netdev);
2455 netif_carrier_off(skge->netdev);
2456
9cbe330f 2457 spin_lock_bh(&hw->phy_lock);
ee294dcd
SH		 2458 if (hw->chip_id == CHIP_ID_GENESIS) {
2459 genesis_reset(hw, port);
2460 genesis_mac_init(hw, port);
2461 } else {
2462 yukon_reset(hw, port);
2463 yukon_init(hw, port);
2464 }
9cbe330f 2465 spin_unlock_bh(&hw->phy_lock);
75814090 2466
f80d032b 2467 skge_set_multicast(dev);
ee294dcd
SH		 2468}
2469
2cd8e5d3
SH		 2470/* Basic MII support */
2471static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2472{
2473 struct mii_ioctl_data *data = if_mii(ifr);
2474 struct skge_port *skge = netdev_priv(dev);
2475 struct skge_hw *hw = skge->hw;
2476 int err = -EOPNOTSUPP;
2477
2478 if (!netif_running(dev))
2479 return -ENODEV; /* Phy still in reset */
2480
2481 switch(cmd) {
2482 case SIOCGMIIPHY:
2483 data->phy_id = hw->phy_addr;
2484
2485 /* fallthru */
2486 case SIOCGMIIREG: {
2487 u16 val = 0;
9cbe330f 2488 spin_lock_bh(&hw->phy_lock);
2cd8e5d3
SH		 2489 if (hw->chip_id == CHIP_ID_GENESIS)
2490 err = __xm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
2491 else
2492 err = __gm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
9cbe330f 2493 spin_unlock_bh(&hw->phy_lock);
2cd8e5d3
SH		 2494 data->val_out = val;
2495 break;
2496 }
2497
2498 case SIOCSMIIREG:
9cbe330f 2499 spin_lock_bh(&hw->phy_lock);
2cd8e5d3
SH		 2500 if (hw->chip_id == CHIP_ID_GENESIS)
2501 err = xm_phy_write(hw, skge->port, data->reg_num & 0x1f,
2502 data->val_in);
2503 else
2504 err = gm_phy_write(hw, skge->port, data->reg_num & 0x1f,
2505 data->val_in);
9cbe330f 2506 spin_unlock_bh(&hw->phy_lock);
2cd8e5d3
SH		 2507 break;
2508 }
2509 return err;
2510}
2511
279e1dab 2512static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len)
baef58b1
SH		 2513{
2514 u32 end;
2515
279e1dab
LT		 2516 start /= 8;
2517 len /= 8;
2518 end = start + len - 1;
baef58b1
SH		 2519
2520 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
2521 skge_write32(hw, RB_ADDR(q, RB_START), start);
2522 skge_write32(hw, RB_ADDR(q, RB_WP), start);
2523 skge_write32(hw, RB_ADDR(q, RB_RP), start);
279e1dab 2524 skge_write32(hw, RB_ADDR(q, RB_END), end);
baef58b1
SH		 2525
2526 if (q == Q_R1 || q == Q_R2) {
2527 /* Set thresholds on receive queue's */
279e1dab
LT		 2528 skge_write32(hw, RB_ADDR(q, RB_RX_UTPP),
2529 start + (2*len)/3);
2530 skge_write32(hw, RB_ADDR(q, RB_RX_LTPP),
2531 start + (len/3));
2532 } else {
2533 /* Enable store & forward on Tx queue's because
2534 * Tx FIFO is only 4K on Genesis and 1K on Yukon
2535 */
baef58b1 2536 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
279e1dab 2537 }
baef58b1
SH		 2538
2539 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
2540}
2541
2542/* Setup Bus Memory Interface */
2543static void skge_qset(struct skge_port *skge, u16 q,
2544 const struct skge_element *e)
2545{
2546 struct skge_hw *hw = skge->hw;
2547 u32 watermark = 0x600;
2548 u64 base = skge->dma + (e->desc - skge->mem);
2549
2550 /* optimization to reduce window on 32bit/33mhz */
2551 if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0)
2552 watermark /= 2;
2553
2554 skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET);
2555 skge_write32(hw, Q_ADDR(q, Q_F), watermark);
2556 skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32));
2557 skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base);
2558}
2559
2560static int skge_up(struct net_device *dev)
2561{
2562 struct skge_port *skge = netdev_priv(dev);
2563 struct skge_hw *hw = skge->hw;
2564 int port = skge->port;
279e1dab 2565 u32 chunk, ram_addr;
baef58b1
SH		 2566 size_t rx_size, tx_size;
2567 int err;
2568
fae87592
SH		 2569 if (!is_valid_ether_addr(dev->dev_addr))
2570 return -EINVAL;
2571
baef58b1
SH		 2572 if (netif_msg_ifup(skge))
2573 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
2574
19a33d4e 2575 if (dev->mtu > RX_BUF_SIZE)
901ccefb 2576 skge->rx_buf_size = dev->mtu + ETH_HLEN;
19a33d4e
SH		 2577 else
2578 skge->rx_buf_size = RX_BUF_SIZE;
2579
2580
baef58b1
SH		 2581 rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc);
2582 tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc);
2583 skge->mem_size = tx_size + rx_size;
2584 skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma);
2585 if (!skge->mem)
2586 return -ENOMEM;
2587
c3da1447
SH		 2588 BUG_ON(skge->dma & 7);
2589
2590 if ((u64)skge->dma >> 32 != ((u64) skge->dma + skge->mem_size) >> 32) {
1479d13c 2591 dev_err(&hw->pdev->dev, "pci_alloc_consistent region crosses 4G boundary\n");
c3da1447
SH		 2592 err = -EINVAL;
2593 goto free_pci_mem;
2594 }
2595
baef58b1
SH		 2596 memset(skge->mem, 0, skge->mem_size);
2597
203babb6
SH		 2598 err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma);
2599 if (err)
baef58b1
SH		 2600 goto free_pci_mem;
2601
c54f9765 2602 err = skge_rx_fill(dev);
19a33d4e 2603 if (err)
baef58b1
SH		 2604 goto free_rx_ring;
2605
203babb6
SH		 2606 err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size,
2607 skge->dma + rx_size);
2608 if (err)
baef58b1
SH		 2609 goto free_rx_ring;
2610
8f3f8193 2611 /* Initialize MAC */
9cbe330f 2612 spin_lock_bh(&hw->phy_lock);
baef58b1
SH		 2613 if (hw->chip_id == CHIP_ID_GENESIS)
2614 genesis_mac_init(hw, port);
2615 else
2616 yukon_mac_init(hw, port);
9cbe330f 2617 spin_unlock_bh(&hw->phy_lock);
baef58b1 2618
29816d9a
SH		 2619 /* Configure RAMbuffers - equally between ports and tx/rx */
2620 chunk = (hw->ram_size - hw->ram_offset) / (hw->ports * 2);
279e1dab 2621 ram_addr = hw->ram_offset + 2 * chunk * port;
baef58b1 2622
279e1dab 2623 skge_ramset(hw, rxqaddr[port], ram_addr, chunk);
7fb7ac24 2624 skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean);
279e1dab 2625
baef58b1 2626 BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean);
279e1dab 2627 skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk);
baef58b1
SH		 2628 skge_qset(skge, txqaddr[port], skge->tx_ring.to_use);
2629
2630 /* Start receiver BMU */
2631 wmb();
2632 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F);
6abebb53 2633 skge_led(skge, LED_MODE_ON);
baef58b1 2634
4ebabfcb
SH		 2635 spin_lock_irq(&hw->hw_lock);
2636 hw->intr_mask |= portmask[port];
2637 skge_write32(hw, B0_IMSK, hw->intr_mask);
2638 spin_unlock_irq(&hw->hw_lock);
2639
bea3348e 2640 napi_enable(&skge->napi);
baef58b1
SH		 2641 return 0;
2642
2643 free_rx_ring:
2644 skge_rx_clean(skge);
2645 kfree(skge->rx_ring.start);
2646 free_pci_mem:
2647 pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
7731a4ea 2648 skge->mem = NULL;
baef58b1
SH		 2649
2650 return err;
2651}
2652
60b24b51
SH		 2653/* stop receiver */
2654static void skge_rx_stop(struct skge_hw *hw, int port)
2655{
2656 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP);
2657 skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL),
2658 RB_RST_SET|RB_DIS_OP_MD);
2659 skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET);
2660}
2661
baef58b1
SH		 2662static int skge_down(struct net_device *dev)
2663{
2664 struct skge_port *skge = netdev_priv(dev);
2665 struct skge_hw *hw = skge->hw;
2666 int port = skge->port;
2667
7731a4ea
SH		 2668 if (skge->mem == NULL)
2669 return 0;
2670
baef58b1
SH		 2671 if (netif_msg_ifdown(skge))
2672 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
2673
d119b392 2674 netif_tx_disable(dev);
692412b3 2675
64f6b64d 2676 if (hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC)
9cbe330f 2677 del_timer_sync(&skge->link_timer);
baef58b1 2678
bea3348e 2679 napi_disable(&skge->napi);
692412b3 2680 netif_carrier_off(dev);
4ebabfcb
SH		 2681
2682 spin_lock_irq(&hw->hw_lock);
2683 hw->intr_mask &= ~portmask[port];
2684 skge_write32(hw, B0_IMSK, hw->intr_mask);
2685 spin_unlock_irq(&hw->hw_lock);
2686
46a60f2d
SH		 2687 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
2688 if (hw->chip_id == CHIP_ID_GENESIS)
2689 genesis_stop(skge);
2690 else
2691 yukon_stop(skge);
2692
baef58b1
SH		 2693 /* Stop transmitter */
2694 skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP);
2695 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
2696 RB_RST_SET|RB_DIS_OP_MD);
2697
baef58b1
SH		 2698
2699 /* Disable Force Sync bit and Enable Alloc bit */
6b0c1480 2700 skge_write8(hw, SK_REG(port, TXA_CTRL),
baef58b1
SH		 2701 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
2702
2703 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
6b0c1480
SH		 2704 skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
2705 skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
baef58b1
SH		 2706
2707 /* Reset PCI FIFO */
2708 skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET);
2709 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
2710
2711 /* Reset the RAM Buffer async Tx queue */
2712 skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET);
60b24b51
SH		 2713
2714 skge_rx_stop(hw, port);
baef58b1
SH		 2715
2716 if (hw->chip_id == CHIP_ID_GENESIS) {
6b0c1480
SH		 2717 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET);
2718 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET);
baef58b1 2719 } else {
6b0c1480
SH		 2720 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
2721 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
baef58b1
SH		 2722 }
2723
6abebb53 2724 skge_led(skge, LED_MODE_OFF);
baef58b1 2725
e3a1b99f 2726 netif_tx_lock_bh(dev);
513f533e 2727 skge_tx_clean(dev);
e3a1b99f
SH		 2728 netif_tx_unlock_bh(dev);
2729
baef58b1
SH		 2730 skge_rx_clean(skge);
2731
2732 kfree(skge->rx_ring.start);
2733 kfree(skge->tx_ring.start);
2734 pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
7731a4ea 2735 skge->mem = NULL;
baef58b1
SH		 2736 return 0;
2737}
2738
29b4e886
SH		 2739static inline int skge_avail(const struct skge_ring *ring)
2740{
992c9623 2741 smp_mb();
29b4e886
SH		 2742 return ((ring->to_clean > ring->to_use) ? 0 : ring->count)
2743 + (ring->to_clean - ring->to_use) - 1;
2744}
2745
61357325
SH		 2746static netdev_tx_t skge_xmit_frame(struct sk_buff *skb,
2747 struct net_device *dev)
baef58b1
SH		 2748{
2749 struct skge_port *skge = netdev_priv(dev);
2750 struct skge_hw *hw = skge->hw;
baef58b1
SH		 2751 struct skge_element *e;
2752 struct skge_tx_desc *td;
2753 int i;
2754 u32 control, len;
2755 u64 map;
baef58b1 2756
5b057c6b 2757 if (skb_padto(skb, ETH_ZLEN))
baef58b1
SH		 2758 return NETDEV_TX_OK;
2759
513f533e 2760 if (unlikely(skge_avail(&skge->tx_ring) < skb_shinfo(skb)->nr_frags + 1))
baef58b1 2761 return NETDEV_TX_BUSY;
baef58b1 2762
7c442fa1 2763 e = skge->tx_ring.to_use;
baef58b1 2764 td = e->desc;
7c442fa1 2765 BUG_ON(td->control & BMU_OWN);
baef58b1
SH		 2766 e->skb = skb;
2767 len = skb_headlen(skb);
2768 map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
2769 pci_unmap_addr_set(e, mapaddr, map);
2770 pci_unmap_len_set(e, maplen, len);
2771
2772 td->dma_lo = map;
2773 td->dma_hi = map >> 32;
2774
84fa7933 2775 if (skb->ip_summed == CHECKSUM_PARTIAL) {
ea2ae17d 2776 const int offset = skb_transport_offset(skb);
baef58b1
SH		 2777
2778 /* This seems backwards, but it is what the sk98lin
2779 * does. Looks like hardware is wrong?
2780 */
b0061ce4 2781 if (ipip_hdr(skb)->protocol == IPPROTO_UDP
981d0377 2782 && hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON)
baef58b1
SH		 2783 control = BMU_TCP_CHECK;
2784 else
2785 control = BMU_UDP_CHECK;
2786
2787 td->csum_offs = 0;
2788 td->csum_start = offset;
ff1dcadb 2789 td->csum_write = offset + skb->csum_offset;
baef58b1
SH		 2790 } else
2791 control = BMU_CHECK;
2792
2793 if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */
2794 control |= BMU_EOF| BMU_IRQ_EOF;
2795 else {
2796 struct skge_tx_desc *tf = td;
2797
2798 control |= BMU_STFWD;
2799 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2800 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2801
2802 map = pci_map_page(hw->pdev, frag->page, frag->page_offset,
2803 frag->size, PCI_DMA_TODEVICE);
2804
2805 e = e->next;
7c442fa1 2806 e->skb = skb;
baef58b1 2807 tf = e->desc;
7c442fa1
SH		 2808 BUG_ON(tf->control & BMU_OWN);
2809
baef58b1
SH		 2810 tf->dma_lo = map;
2811 tf->dma_hi = (u64) map >> 32;
2812 pci_unmap_addr_set(e, mapaddr, map);
2813 pci_unmap_len_set(e, maplen, frag->size);
2814
2815 tf->control = BMU_OWN | BMU_SW | control | frag->size;
2816 }
2817 tf->control |= BMU_EOF | BMU_IRQ_EOF;
2818 }
2819 /* Make sure all the descriptors written */
2820 wmb();
2821 td->control = BMU_OWN | BMU_SW | BMU_STF | control | len;
2822 wmb();
2823
2824 skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START);
2825
7c442fa1 2826 if (unlikely(netif_msg_tx_queued(skge)))
0b2d7fea 2827 printk(KERN_DEBUG "%s: tx queued, slot %td, len %d\n",
7c442fa1 2828 dev->name, e - skge->tx_ring.start, skb->len);
baef58b1 2829
7c442fa1 2830 skge->tx_ring.to_use = e->next;
992c9623
SH		 2831 smp_wmb();
2832
9db96479 2833 if (skge_avail(&skge->tx_ring) <= TX_LOW_WATER) {
baef58b1
SH		 2834 pr_debug("%s: transmit queue full\n", dev->name);
2835 netif_stop_queue(dev);
2836 }
2837
baef58b1
SH		 2838 return NETDEV_TX_OK;
2839}
2840
7c442fa1
SH		 2841
2842/* Free resources associated with this reing element */
2843static void skge_tx_free(struct skge_port *skge, struct skge_element *e,
2844 u32 control)
866b4f3e
SH		 2845{
2846 struct pci_dev *pdev = skge->hw->pdev;
866b4f3e 2847
7c442fa1
SH		 2848 /* skb header vs. fragment */
2849 if (control & BMU_STF)
866b4f3e 2850 pci_unmap_single(pdev, pci_unmap_addr(e, mapaddr),
7c442fa1
SH		 2851 pci_unmap_len(e, maplen),
2852 PCI_DMA_TODEVICE);
2853 else
2854 pci_unmap_page(pdev, pci_unmap_addr(e, mapaddr),
2855 pci_unmap_len(e, maplen),
2856 PCI_DMA_TODEVICE);
866b4f3e 2857
7c442fa1
SH		 2858 if (control & BMU_EOF) {
2859 if (unlikely(netif_msg_tx_done(skge)))
2860 printk(KERN_DEBUG PFX "%s: tx done slot %td\n",
2861 skge->netdev->name, e - skge->tx_ring.start);
866b4f3e 2862
513f533e 2863 dev_kfree_skb(e->skb);
baef58b1
SH		 2864 }
2865}
2866
7c442fa1 2867/* Free all buffers in transmit ring */
513f533e 2868static void skge_tx_clean(struct net_device *dev)
baef58b1 2869{
513f533e 2870 struct skge_port *skge = netdev_priv(dev);
7c442fa1 2871 struct skge_element *e;
baef58b1 2872
7c442fa1
SH		 2873 for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) {
2874 struct skge_tx_desc *td = e->desc;
2875 skge_tx_free(skge, e, td->control);
2876 td->control = 0;
2877 }
2878
2879 skge->tx_ring.to_clean = e;
baef58b1
SH		 2880}
2881
2882static void skge_tx_timeout(struct net_device *dev)
2883{
2884 struct skge_port *skge = netdev_priv(dev);
2885
2886 if (netif_msg_timer(skge))
2887 printk(KERN_DEBUG PFX "%s: tx timeout\n", dev->name);
2888
2889 skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP);
513f533e 2890 skge_tx_clean(dev);
d119b392 2891 netif_wake_queue(dev);
baef58b1
SH		 2892}
2893
2894static int skge_change_mtu(struct net_device *dev, int new_mtu)
2895{
7731a4ea 2896 int err;
baef58b1 2897
95566065 2898 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
baef58b1
SH		 2899 return -EINVAL;
2900
7731a4ea
SH		 2901 if (!netif_running(dev)) {
2902 dev->mtu = new_mtu;
2903 return 0;
2904 }
2905
1a8098be 2906 skge_down(dev);
baef58b1 2907
19a33d4e 2908 dev->mtu = new_mtu;
7731a4ea 2909
1a8098be 2910 err = skge_up(dev);
7731a4ea
SH		 2911 if (err)
2912 dev_close(dev);
baef58b1
SH		 2913
2914 return err;
2915}
2916
c4cd29d2
SH		 2917static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 };
2918
2919static void genesis_add_filter(u8 filter[8], const u8 *addr)
2920{
2921 u32 crc, bit;
2922
2923 crc = ether_crc_le(ETH_ALEN, addr);
2924 bit = ~crc & 0x3f;
2925 filter[bit/8] |= 1 << (bit%8);
2926}
2927
baef58b1
SH		 2928static void genesis_set_multicast(struct net_device *dev)
2929{
2930 struct skge_port *skge = netdev_priv(dev);
2931 struct skge_hw *hw = skge->hw;
2932 int port = skge->port;
2933 int i, count = dev->mc_count;
2934 struct dev_mc_list *list = dev->mc_list;
2935 u32 mode;
2936 u8 filter[8];
2937
6b0c1480 2938 mode = xm_read32(hw, port, XM_MODE);
baef58b1
SH		 2939 mode |= XM_MD_ENA_HASH;
2940 if (dev->flags & IFF_PROMISC)
2941 mode |= XM_MD_ENA_PROM;
2942 else
2943 mode &= ~XM_MD_ENA_PROM;
2944
2945 if (dev->flags & IFF_ALLMULTI)
2946 memset(filter, 0xff, sizeof(filter));
2947 else {
2948 memset(filter, 0, sizeof(filter));
c4cd29d2
SH		 2949
2950 if (skge->flow_status == FLOW_STAT_REM_SEND
2951 || skge->flow_status == FLOW_STAT_SYMMETRIC)
2952 genesis_add_filter(filter, pause_mc_addr);
2953
2954 for (i = 0; list && i < count; i++, list = list->next)
2955 genesis_add_filter(filter, list->dmi_addr);
baef58b1
SH		 2956 }
2957
6b0c1480 2958 xm_write32(hw, port, XM_MODE, mode);
45bada65 2959 xm_outhash(hw, port, XM_HSM, filter);
baef58b1
SH		 2960}
2961
c4cd29d2
SH		 2962static void yukon_add_filter(u8 filter[8], const u8 *addr)
2963{
2964 u32 bit = ether_crc(ETH_ALEN, addr) & 0x3f;
2965 filter[bit/8] |= 1 << (bit%8);
2966}
2967
baef58b1
SH		 2968static void yukon_set_multicast(struct net_device *dev)
2969{
2970 struct skge_port *skge = netdev_priv(dev);
2971 struct skge_hw *hw = skge->hw;
2972 int port = skge->port;
2973 struct dev_mc_list *list = dev->mc_list;
c4cd29d2
SH		 2974 int rx_pause = (skge->flow_status == FLOW_STAT_REM_SEND
2975 || skge->flow_status == FLOW_STAT_SYMMETRIC);
baef58b1
SH		 2976 u16 reg;
2977 u8 filter[8];
2978
2979 memset(filter, 0, sizeof(filter));
2980
6b0c1480 2981 reg = gma_read16(hw, port, GM_RX_CTRL);
baef58b1
SH		 2982 reg |= GM_RXCR_UCF_ENA;
2983
8f3f8193 2984 if (dev->flags & IFF_PROMISC) /* promiscuous */
baef58b1
SH		 2985 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
2986 else if (dev->flags & IFF_ALLMULTI) /* all multicast */
2987 memset(filter, 0xff, sizeof(filter));
c4cd29d2 2988 else if (dev->mc_count == 0 && !rx_pause)/* no multicast */
baef58b1
SH		 2989 reg &= ~GM_RXCR_MCF_ENA;
2990 else {
2991 int i;
2992 reg |= GM_RXCR_MCF_ENA;
2993
c4cd29d2
SH		 2994 if (rx_pause)
2995 yukon_add_filter(filter, pause_mc_addr);
2996
2997 for (i = 0; list && i < dev->mc_count; i++, list = list->next)
2998 yukon_add_filter(filter, list->dmi_addr);
baef58b1
SH		 2999 }
3000
3001
6b0c1480 3002 gma_write16(hw, port, GM_MC_ADDR_H1,
baef58b1 3003 (u16)filter[0] | ((u16)filter[1] << 8));
6b0c1480 3004 gma_write16(hw, port, GM_MC_ADDR_H2,
baef58b1 3005 (u16)filter[2] | ((u16)filter[3] << 8));
6b0c1480 3006 gma_write16(hw, port, GM_MC_ADDR_H3,
baef58b1 3007 (u16)filter[4] | ((u16)filter[5] << 8));
6b0c1480 3008 gma_write16(hw, port, GM_MC_ADDR_H4,
baef58b1
SH		 3009 (u16)filter[6] | ((u16)filter[7] << 8));
3010
6b0c1480 3011 gma_write16(hw, port, GM_RX_CTRL, reg);
baef58b1
SH		 3012}
3013
383181ac
SH		 3014static inline u16 phy_length(const struct skge_hw *hw, u32 status)
3015{
3016 if (hw->chip_id == CHIP_ID_GENESIS)
3017 return status >> XMR_FS_LEN_SHIFT;
3018 else
3019 return status >> GMR_FS_LEN_SHIFT;
3020}
3021
baef58b1
SH		 3022static inline int bad_phy_status(const struct skge_hw *hw, u32 status)
3023{
3024 if (hw->chip_id == CHIP_ID_GENESIS)
3025 return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0;
3026 else
3027 return (status & GMR_FS_ANY_ERR) ||
3028 (status & GMR_FS_RX_OK) == 0;
3029}
3030
f80d032b
SH		 3031static void skge_set_multicast(struct net_device *dev)
3032{
3033 struct skge_port *skge = netdev_priv(dev);
3034 struct skge_hw *hw = skge->hw;
3035
3036 if (hw->chip_id == CHIP_ID_GENESIS)
3037 genesis_set_multicast(dev);
3038 else
3039 yukon_set_multicast(dev);
3040
3041}
3042
19a33d4e
SH		 3043
3044/* Get receive buffer from descriptor.
3045 * Handles copy of small buffers and reallocation failures
3046 */
c54f9765
SH		 3047static struct sk_buff *skge_rx_get(struct net_device *dev,
3048 struct skge_element *e,
3049 u32 control, u32 status, u16 csum)
19a33d4e 3050{
c54f9765 3051 struct skge_port *skge = netdev_priv(dev);
383181ac
SH		 3052 struct sk_buff *skb;
3053 u16 len = control & BMU_BBC;
3054
3055 if (unlikely(netif_msg_rx_status(skge)))
3056 printk(KERN_DEBUG PFX "%s: rx slot %td status 0x%x len %d\n",
c54f9765 3057 dev->name, e - skge->rx_ring.start,
383181ac
SH		 3058 status, len);
3059
3060 if (len > skge->rx_buf_size)
3061 goto error;
3062
3063 if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF))
3064 goto error;
3065
3066 if (bad_phy_status(skge->hw, status))
3067 goto error;
3068
3069 if (phy_length(skge->hw, status) != len)
3070 goto error;
19a33d4e
SH		 3071
3072 if (len < RX_COPY_THRESHOLD) {
89d71a66 3073 skb = netdev_alloc_skb_ip_align(dev, len);
383181ac
SH		 3074 if (!skb)
3075 goto resubmit;
19a33d4e
SH		 3076
3077 pci_dma_sync_single_for_cpu(skge->hw->pdev,
3078 pci_unmap_addr(e, mapaddr),
3079 len, PCI_DMA_FROMDEVICE);
d626f62b 3080 skb_copy_from_linear_data(e->skb, skb->data, len);
19a33d4e
SH		 3081 pci_dma_sync_single_for_device(skge->hw->pdev,
3082 pci_unmap_addr(e, mapaddr),
3083 len, PCI_DMA_FROMDEVICE);
19a33d4e 3084 skge_rx_reuse(e, skge->rx_buf_size);
19a33d4e 3085 } else {
383181ac 3086 struct sk_buff *nskb;
89d71a66
ED		 3087
3088 nskb = netdev_alloc_skb_ip_align(dev, skge->rx_buf_size);
383181ac
SH		 3089 if (!nskb)
3090 goto resubmit;
19a33d4e
SH		 3091
3092 pci_unmap_single(skge->hw->pdev,
3093 pci_unmap_addr(e, mapaddr),
3094 pci_unmap_len(e, maplen),
3095 PCI_DMA_FROMDEVICE);
3096 skb = e->skb;
383181ac 3097 prefetch(skb->data);
19a33d4e 3098 skge_rx_setup(skge, e, nskb, skge->rx_buf_size);
baef58b1 3099 }
383181ac
SH		 3100
3101 skb_put(skb, len);
383181ac
SH		 3102 if (skge->rx_csum) {
3103 skb->csum = csum;
84fa7933 3104 skb->ip_summed = CHECKSUM_COMPLETE;
383181ac
SH		 3105 }
3106
c54f9765 3107 skb->protocol = eth_type_trans(skb, dev);
383181ac
SH		 3108
3109 return skb;
3110error:
3111
3112 if (netif_msg_rx_err(skge))
3113 printk(KERN_DEBUG PFX "%s: rx err, slot %td control 0x%x status 0x%x\n",
c54f9765 3114 dev->name, e - skge->rx_ring.start,
383181ac
SH		 3115 control, status);
3116
3117 if (skge->hw->chip_id == CHIP_ID_GENESIS) {
3118 if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR))
da00772f 3119 dev->stats.rx_length_errors++;
383181ac 3120 if (status & XMR_FS_FRA_ERR)
da00772f 3121 dev->stats.rx_frame_errors++;
383181ac 3122 if (status & XMR_FS_FCS_ERR)
da00772f 3123 dev->stats.rx_crc_errors++;
383181ac
SH		 3124 } else {
3125 if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE))
da00772f 3126 dev->stats.rx_length_errors++;
383181ac 3127 if (status & GMR_FS_FRAGMENT)
da00772f 3128 dev->stats.rx_frame_errors++;
383181ac 3129 if (status & GMR_FS_CRC_ERR)
da00772f 3130 dev->stats.rx_crc_errors++;
383181ac
SH		 3131 }
3132
3133resubmit:
3134 skge_rx_reuse(e, skge->rx_buf_size);
3135 return NULL;
baef58b1
SH		 3136}
3137
7c442fa1 3138/* Free all buffers in Tx ring which are no longer owned by device */
513f533e 3139static void skge_tx_done(struct net_device *dev)
00a6cae2 3140{
7c442fa1 3141 struct skge_port *skge = netdev_priv(dev);
00a6cae2 3142 struct skge_ring *ring = &skge->tx_ring;
7c442fa1
SH		 3143 struct skge_element *e;
3144
513f533e 3145 skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
00a6cae2 3146
866b4f3e 3147 for (e = ring->to_clean; e != ring->to_use; e = e->next) {
992c9623 3148 u32 control = ((const struct skge_tx_desc *) e->desc)->control;
00a6cae2 3149
992c9623 3150 if (control & BMU_OWN)
00a6cae2
SH		 3151 break;
3152
992c9623 3153 skge_tx_free(skge, e, control);
00a6cae2 3154 }
7c442fa1 3155 skge->tx_ring.to_clean = e;
866b4f3e 3156
992c9623
SH		 3157 /* Can run lockless until we need to synchronize to restart queue. */
3158 smp_mb();
3159
3160 if (unlikely(netif_queue_stopped(dev) &&
3161 skge_avail(&skge->tx_ring) > TX_LOW_WATER)) {
3162 netif_tx_lock(dev);
3163 if (unlikely(netif_queue_stopped(dev) &&
3164 skge_avail(&skge->tx_ring) > TX_LOW_WATER)) {
3165 netif_wake_queue(dev);
00a6cae2 3166
992c9623
SH		 3167 }
3168 netif_tx_unlock(dev);
3169 }
00a6cae2 3170}
19a33d4e 3171
bea3348e 3172static int skge_poll(struct napi_struct *napi, int to_do)
baef58b1 3173{
bea3348e
SH		 3174 struct skge_port *skge = container_of(napi, struct skge_port, napi);
3175 struct net_device *dev = skge->netdev;
baef58b1
SH		 3176 struct skge_hw *hw = skge->hw;
3177 struct skge_ring *ring = &skge->rx_ring;
3178 struct skge_element *e;
00a6cae2
SH		 3179 int work_done = 0;
3180
513f533e
SH		 3181 skge_tx_done(dev);
3182
3183 skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
3184
1631aef1 3185 for (e = ring->to_clean; prefetch(e->next), work_done < to_do; e = e->next) {
baef58b1 3186 struct skge_rx_desc *rd = e->desc;
19a33d4e 3187 struct sk_buff *skb;
383181ac 3188 u32 control;
baef58b1
SH		 3189
3190 rmb();
3191 control = rd->control;
3192 if (control & BMU_OWN)
3193 break;
3194
c54f9765 3195 skb = skge_rx_get(dev, e, control, rd->status, rd->csum2);
19a33d4e 3196 if (likely(skb)) {
19a33d4e 3197 netif_receive_skb(skb);
baef58b1 3198
19a33d4e 3199 ++work_done;
5a011447 3200 }
baef58b1
SH		 3201 }
3202 ring->to_clean = e;
3203
baef58b1
SH		 3204 /* restart receiver */
3205 wmb();
a9cdab86 3206 skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_START);
baef58b1 3207
bea3348e 3208 if (work_done < to_do) {
6ef2977d 3209 unsigned long flags;
f0c88f9c 3210
6ef2977d 3211 spin_lock_irqsave(&hw->hw_lock, flags);
288379f0 3212 __napi_complete(napi);
bea3348e
SH		 3213 hw->intr_mask |= napimask[skge->port];
3214 skge_write32(hw, B0_IMSK, hw->intr_mask);
3215 skge_read32(hw, B0_IMSK);
6ef2977d 3216 spin_unlock_irqrestore(&hw->hw_lock, flags);
bea3348e 3217 }
1631aef1 3218
bea3348e 3219 return work_done;
baef58b1
SH		 3220}
3221
f6620cab
SH		 3222/* Parity errors seem to happen when Genesis is connected to a switch
3223 * with no other ports present. Heartbeat error??
3224 */
baef58b1
SH		 3225static void skge_mac_parity(struct skge_hw *hw, int port)
3226{
f6620cab
SH		 3227 struct net_device *dev = hw->dev[port];
3228
da00772f 3229 ++dev->stats.tx_heartbeat_errors;
baef58b1
SH		 3230
3231 if (hw->chip_id == CHIP_ID_GENESIS)
6b0c1480 3232 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
baef58b1
SH		 3233 MFF_CLR_PERR);
3234 else
3235 /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
6b0c1480 3236 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T),
981d0377 3237 (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
baef58b1
SH		 3238 ? GMF_CLI_TX_FC : GMF_CLI_TX_PE);
3239}
3240
baef58b1
SH		 3241static void skge_mac_intr(struct skge_hw *hw, int port)
3242{
95566065 3243 if (hw->chip_id == CHIP_ID_GENESIS)
baef58b1
SH		 3244 genesis_mac_intr(hw, port);
3245 else
3246 yukon_mac_intr(hw, port);
3247}
3248
3249/* Handle device specific framing and timeout interrupts */
3250static void skge_error_irq(struct skge_hw *hw)
3251{
1479d13c 3252 struct pci_dev *pdev = hw->pdev;
baef58b1
SH		 3253 u32 hwstatus = skge_read32(hw, B0_HWE_ISRC);
3254
3255 if (hw->chip_id == CHIP_ID_GENESIS) {
3256 /* clear xmac errors */
3257 if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1))
46a60f2d 3258 skge_write16(hw, RX_MFF_CTRL1, MFF_CLR_INSTAT);
baef58b1 3259 if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2))
46a60f2d 3260 skge_write16(hw, RX_MFF_CTRL2, MFF_CLR_INSTAT);
baef58b1
SH		 3261 } else {
3262 /* Timestamp (unused) overflow */
3263 if (hwstatus & IS_IRQ_TIST_OV)
3264 skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
baef58b1
SH		 3265 }
3266
3267 if (hwstatus & IS_RAM_RD_PAR) {
1479d13c 3268 dev_err(&pdev->dev, "Ram read data parity error\n");
baef58b1
SH		 3269 skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR);
3270 }
3271
3272 if (hwstatus & IS_RAM_WR_PAR) {
1479d13c 3273 dev_err(&pdev->dev, "Ram write data parity error\n");
baef58b1
SH		 3274 skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR);
3275 }
3276
3277 if (hwstatus & IS_M1_PAR_ERR)
3278 skge_mac_parity(hw, 0);
3279
3280 if (hwstatus & IS_M2_PAR_ERR)
3281 skge_mac_parity(hw, 1);
3282
b9d64acc 3283 if (hwstatus & IS_R1_PAR_ERR) {
1479d13c
SH		 3284 dev_err(&pdev->dev, "%s: receive queue parity error\n",
3285 hw->dev[0]->name);
baef58b1 3286 skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P);
b9d64acc 3287 }
baef58b1 3288
b9d64acc 3289 if (hwstatus & IS_R2_PAR_ERR) {
1479d13c
SH		 3290 dev_err(&pdev->dev, "%s: receive queue parity error\n",
3291 hw->dev[1]->name);
baef58b1 3292 skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P);
b9d64acc 3293 }
baef58b1
SH		 3294
3295 if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) {
b9d64acc
SH		 3296 u16 pci_status, pci_cmd;
3297
1479d13c
SH		 3298 pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
3299 pci_read_config_word(pdev, PCI_STATUS, &pci_status);
baef58b1 3300
1479d13c
SH		 3301 dev_err(&pdev->dev, "PCI error cmd=%#x status=%#x\n",
3302 pci_cmd, pci_status);
b9d64acc
SH		 3303
3304 /* Write the error bits back to clear them. */
3305 pci_status &= PCI_STATUS_ERROR_BITS;
3306 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
1479d13c 3307 pci_write_config_word(pdev, PCI_COMMAND,
b9d64acc 3308 pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
1479d13c 3309 pci_write_config_word(pdev, PCI_STATUS, pci_status);
b9d64acc 3310 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
baef58b1 3311
050ec18a 3312 /* if error still set then just ignore it */
baef58b1
SH		 3313 hwstatus = skge_read32(hw, B0_HWE_ISRC);
3314 if (hwstatus & IS_IRQ_STAT) {
1479d13c 3315 dev_warn(&hw->pdev->dev, "unable to clear error (so ignoring them)\n");
baef58b1
SH		 3316 hw->intr_mask &= ~IS_HW_ERR;
3317 }
3318 }
3319}
3320
3321/*
9cbe330f 3322 * Interrupt from PHY are handled in tasklet (softirq)
baef58b1
SH		 3323 * because accessing phy registers requires spin wait which might
3324 * cause excess interrupt latency.
3325 */
9cbe330f 3326static void skge_extirq(unsigned long arg)
baef58b1 3327{
9cbe330f 3328 struct skge_hw *hw = (struct skge_hw *) arg;
baef58b1
SH		 3329 int port;
3330
cfc3ed79 3331 for (port = 0; port < hw->ports; port++) {
baef58b1
SH		 3332 struct net_device *dev = hw->dev[port];
3333
cfc3ed79 3334 if (netif_running(dev)) {
9cbe330f
SH		 3335 struct skge_port *skge = netdev_priv(dev);
3336
3337 spin_lock(&hw->phy_lock);
baef58b1
SH		 3338 if (hw->chip_id != CHIP_ID_GENESIS)
3339 yukon_phy_intr(skge);
64f6b64d 3340 else if (hw->phy_type == SK_PHY_BCOM)
45bada65 3341 bcom_phy_intr(skge);
9cbe330f 3342 spin_unlock(&hw->phy_lock);
baef58b1
SH		 3343 }
3344 }
baef58b1 3345
7c442fa1 3346 spin_lock_irq(&hw->hw_lock);
baef58b1
SH		 3347 hw->intr_mask |= IS_EXT_REG;
3348 skge_write32(hw, B0_IMSK, hw->intr_mask);
78bc2186 3349 skge_read32(hw, B0_IMSK);
7c442fa1 3350 spin_unlock_irq(&hw->hw_lock);
baef58b1
SH		 3351}
3352
7d12e780 3353static irqreturn_t skge_intr(int irq, void *dev_id)
baef58b1
SH		 3354{
3355 struct skge_hw *hw = dev_id;
cfc3ed79 3356 u32 status;
29365c90 3357 int handled = 0;
baef58b1 3358
29365c90 3359 spin_lock(&hw->hw_lock);
cfc3ed79
SH		 3360 /* Reading this register masks IRQ */
3361 status = skge_read32(hw, B0_SP_ISRC);
0486a8c8 3362 if (status == 0 || status == ~0)
29365c90 3363 goto out;
baef58b1 3364
29365c90 3365 handled = 1;
7c442fa1 3366 status &= hw->intr_mask;
cfc3ed79
SH		 3367 if (status & IS_EXT_REG) {
3368 hw->intr_mask &= ~IS_EXT_REG;
9cbe330f 3369 tasklet_schedule(&hw->phy_task);
cfc3ed79
SH		 3370 }
3371
513f533e 3372 if (status & (IS_XA1_F|IS_R1_F)) {
bea3348e 3373 struct skge_port *skge = netdev_priv(hw->dev[0]);
513f533e 3374 hw->intr_mask &= ~(IS_XA1_F|IS_R1_F);
288379f0 3375 napi_schedule(&skge->napi);
baef58b1
SH		 3376 }
3377
7c442fa1
SH		 3378 if (status & IS_PA_TO_TX1)
3379 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1);
cfc3ed79 3380
d25f5a67 3381 if (status & IS_PA_TO_RX1) {
da00772f 3382 ++hw->dev[0]->stats.rx_over_errors;
7c442fa1 3383 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1);
d25f5a67
SH		 3384 }
3385
d25f5a67 3386
baef58b1
SH		 3387 if (status & IS_MAC1)
3388 skge_mac_intr(hw, 0);
95566065 3389
7c442fa1 3390 if (hw->dev[1]) {
bea3348e
SH		 3391 struct skge_port *skge = netdev_priv(hw->dev[1]);
3392
513f533e
SH		 3393 if (status & (IS_XA2_F|IS_R2_F)) {
3394 hw->intr_mask &= ~(IS_XA2_F|IS_R2_F);
288379f0 3395 napi_schedule(&skge->napi);
7c442fa1
SH		 3396 }
3397
3398 if (status & IS_PA_TO_RX2) {
da00772f 3399 ++hw->dev[1]->stats.rx_over_errors;
7c442fa1
SH		 3400 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2);
3401 }
3402
3403 if (status & IS_PA_TO_TX2)
3404 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2);
3405
3406 if (status & IS_MAC2)
3407 skge_mac_intr(hw, 1);
3408 }
baef58b1
SH		 3409
3410 if (status & IS_HW_ERR)
3411 skge_error_irq(hw);
3412
7e676d91 3413 skge_write32(hw, B0_IMSK, hw->intr_mask);
78bc2186 3414 skge_read32(hw, B0_IMSK);
29365c90 3415out:
7c442fa1 3416 spin_unlock(&hw->hw_lock);
baef58b1 3417
29365c90 3418 return IRQ_RETVAL(handled);
baef58b1
SH		 3419}
3420
3421#ifdef CONFIG_NET_POLL_CONTROLLER
3422static void skge_netpoll(struct net_device *dev)
3423{
3424 struct skge_port *skge = netdev_priv(dev);
3425
3426 disable_irq(dev->irq);
7d12e780 3427 skge_intr(dev->irq, skge->hw);
baef58b1
SH		 3428 enable_irq(dev->irq);
3429}
3430#endif
3431
3432static int skge_set_mac_address(struct net_device *dev, void *p)
3433{
3434 struct skge_port *skge = netdev_priv(dev);
c2681dd8
SH		 3435 struct skge_hw *hw = skge->hw;
3436 unsigned port = skge->port;
3437 const struct sockaddr *addr = p;
2eb3e621 3438 u16 ctrl;
baef58b1
SH		 3439
3440 if (!is_valid_ether_addr(addr->sa_data))
3441 return -EADDRNOTAVAIL;
3442
baef58b1 3443 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
c2681dd8 3444
9cbe330f
SH		 3445 if (!netif_running(dev)) {
3446 memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
3447 memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN);
3448 } else {
3449 /* disable Rx */
3450 spin_lock_bh(&hw->phy_lock);
3451 ctrl = gma_read16(hw, port, GM_GP_CTRL);
3452 gma_write16(hw, port, GM_GP_CTRL, ctrl & ~GM_GPCR_RX_ENA);
2eb3e621 3453
9cbe330f
SH		 3454 memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
3455 memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN);
2eb3e621 3456
2eb3e621
SH		 3457 if (hw->chip_id == CHIP_ID_GENESIS)
3458 xm_outaddr(hw, port, XM_SA, dev->dev_addr);
3459 else {
3460 gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
3461 gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
3462 }
2eb3e621 3463
9cbe330f
SH		 3464 gma_write16(hw, port, GM_GP_CTRL, ctrl);
3465 spin_unlock_bh(&hw->phy_lock);
3466 }
c2681dd8
SH		 3467
3468 return 0;
baef58b1
SH		 3469}
3470
3471static const struct {
3472 u8 id;
3473 const char *name;
3474} skge_chips[] = {
3475 { CHIP_ID_GENESIS, "Genesis" },
3476 { CHIP_ID_YUKON, "Yukon" },
3477 { CHIP_ID_YUKON_LITE, "Yukon-Lite"},
3478 { CHIP_ID_YUKON_LP, "Yukon-LP"},
baef58b1
SH		 3479};
3480
3481static const char *skge_board_name(const struct skge_hw *hw)
3482{
3483 int i;
3484 static char buf[16];
3485
3486 for (i = 0; i < ARRAY_SIZE(skge_chips); i++)
3487 if (skge_chips[i].id == hw->chip_id)
3488 return skge_chips[i].name;
3489
3490 snprintf(buf, sizeof buf, "chipid 0x%x", hw->chip_id);
3491 return buf;
3492}
3493
3494
3495/*
3496 * Setup the board data structure, but don't bring up
3497 * the port(s)
3498 */
3499static int skge_reset(struct skge_hw *hw)
3500{
adba9e23 3501 u32 reg;
b9d64acc 3502 u16 ctst, pci_status;
64f6b64d 3503 u8 t8, mac_cfg, pmd_type;
981d0377 3504 int i;
baef58b1
SH		 3505
3506 ctst = skge_read16(hw, B0_CTST);
3507
3508 /* do a SW reset */
3509 skge_write8(hw, B0_CTST, CS_RST_SET);
3510 skge_write8(hw, B0_CTST, CS_RST_CLR);
3511
3512 /* clear PCI errors, if any */
b9d64acc
SH		 3513 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
3514 skge_write8(hw, B2_TST_CTRL2, 0);
baef58b1 3515
b9d64acc
SH		 3516 pci_read_config_word(hw->pdev, PCI_STATUS, &pci_status);
3517 pci_write_config_word(hw->pdev, PCI_STATUS,
3518 pci_status | PCI_STATUS_ERROR_BITS);
3519 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
baef58b1
SH		 3520 skge_write8(hw, B0_CTST, CS_MRST_CLR);
3521
3522 /* restore CLK_RUN bits (for Yukon-Lite) */
3523 skge_write16(hw, B0_CTST,
3524 ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA));
3525
3526 hw->chip_id = skge_read8(hw, B2_CHIP_ID);
64f6b64d 3527 hw->phy_type = skge_read8(hw, B2_E_1) & 0xf;
5e1705dd
SH		 3528 pmd_type = skge_read8(hw, B2_PMD_TYP);
3529 hw->copper = (pmd_type == 'T' || pmd_type == '1');
baef58b1 3530
95566065 3531 switch (hw->chip_id) {
baef58b1 3532 case CHIP_ID_GENESIS:
64f6b64d
SH		 3533 switch (hw->phy_type) {
3534 case SK_PHY_XMAC:
3535 hw->phy_addr = PHY_ADDR_XMAC;
3536 break;
baef58b1
SH		 3537 case SK_PHY_BCOM:
3538 hw->phy_addr = PHY_ADDR_BCOM;
3539 break;
3540 default:
1479d13c
SH		 3541 dev_err(&hw->pdev->dev, "unsupported phy type 0x%x\n",
3542 hw->phy_type);
baef58b1
SH		 3543 return -EOPNOTSUPP;
3544 }
3545 break;
3546
3547 case CHIP_ID_YUKON:
3548 case CHIP_ID_YUKON_LITE:
3549 case CHIP_ID_YUKON_LP:
64f6b64d 3550 if (hw->phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S')
5e1705dd 3551 hw->copper = 1;
baef58b1
SH		 3552
3553 hw->phy_addr = PHY_ADDR_MARV;
baef58b1
SH		 3554 break;
3555
3556 default:
1479d13c
SH		 3557 dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
3558 hw->chip_id);
baef58b1
SH		 3559 return -EOPNOTSUPP;
3560 }
3561
981d0377
SH		 3562 mac_cfg = skge_read8(hw, B2_MAC_CFG);
3563 hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2;
3564 hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4;
baef58b1
SH		 3565
3566 /* read the adapters RAM size */
3567 t8 = skge_read8(hw, B2_E_0);
3568 if (hw->chip_id == CHIP_ID_GENESIS) {
3569 if (t8 == 3) {
3570 /* special case: 4 x 64k x 36, offset = 0x80000 */
279e1dab
LT		 3571 hw->ram_size = 0x100000;
3572 hw->ram_offset = 0x80000;
baef58b1
SH		 3573 } else
3574 hw->ram_size = t8 * 512;
279e1dab
LT		 3575 }
3576 else if (t8 == 0)
3577 hw->ram_size = 0x20000;
3578 else
3579 hw->ram_size = t8 * 4096;
baef58b1 3580
4ebabfcb 3581 hw->intr_mask = IS_HW_ERR;
cfc3ed79 3582
4ebabfcb 3583 /* Use PHY IRQ for all but fiber based Genesis board */
64f6b64d
SH		 3584 if (!(hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC))
3585 hw->intr_mask |= IS_EXT_REG;
3586
baef58b1
SH		 3587 if (hw->chip_id == CHIP_ID_GENESIS)
3588 genesis_init(hw);
3589 else {
3590 /* switch power to VCC (WA for VAUX problem) */
3591 skge_write8(hw, B0_POWER_CTRL,
3592 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
adba9e23 3593
050ec18a
SH		 3594 /* avoid boards with stuck Hardware error bits */
3595 if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) &&
3596 (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) {
1479d13c 3597 dev_warn(&hw->pdev->dev, "stuck hardware sensor bit\n");
050ec18a
SH		 3598 hw->intr_mask &= ~IS_HW_ERR;
3599 }
3600
adba9e23
SH		 3601 /* Clear PHY COMA */
3602 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
3603 pci_read_config_dword(hw->pdev, PCI_DEV_REG1, &reg);
3604 reg &= ~PCI_PHY_COMA;
3605 pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg);
3606 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
3607
3608
981d0377 3609 for (i = 0; i < hw->ports; i++) {
6b0c1480
SH		 3610 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
3611 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
baef58b1
SH		 3612 }
3613 }
3614
3615 /* turn off hardware timer (unused) */
3616 skge_write8(hw, B2_TI_CTRL, TIM_STOP);
3617 skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
3618 skge_write8(hw, B0_LED, LED_STAT_ON);
3619
3620 /* enable the Tx Arbiters */
981d0377 3621 for (i = 0; i < hw->ports; i++)
6b0c1480 3622 skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
baef58b1
SH		 3623
3624 /* Initialize ram interface */
3625 skge_write16(hw, B3_RI_CTRL, RI_RST_CLR);
3626
3627 skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53);
3628 skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53);
3629 skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53);
3630 skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53);
3631 skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53);
3632 skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53);
3633 skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53);
3634 skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53);
3635 skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53);
3636 skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53);
3637 skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53);
3638 skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53);
3639
3640 skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK);
3641
3642 /* Set interrupt moderation for Transmit only
3643 * Receive interrupts avoided by NAPI
3644 */
3645 skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F);
3646 skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100));
3647 skge_write32(hw, B2_IRQM_CTRL, TIM_START);
3648
baef58b1
SH		 3649 skge_write32(hw, B0_IMSK, hw->intr_mask);
3650
981d0377 3651 for (i = 0; i < hw->ports; i++) {
baef58b1
SH		 3652 if (hw->chip_id == CHIP_ID_GENESIS)
3653 genesis_reset(hw, i);
3654 else
3655 yukon_reset(hw, i);
3656 }
baef58b1
SH		 3657
3658 return 0;
3659}
3660
678aa1f6
SH		 3661
3662#ifdef CONFIG_SKGE_DEBUG
3663
3664static struct dentry *skge_debug;
3665
3666static int skge_debug_show(struct seq_file *seq, void *v)
3667{
3668 struct net_device *dev = seq->private;
3669 const struct skge_port *skge = netdev_priv(dev);
3670 const struct skge_hw *hw = skge->hw;
3671 const struct skge_element *e;
3672
3673 if (!netif_running(dev))
3674 return -ENETDOWN;
3675
3676 seq_printf(seq, "IRQ src=%x mask=%x\n", skge_read32(hw, B0_ISRC),
3677 skge_read32(hw, B0_IMSK));
3678
3679 seq_printf(seq, "Tx Ring: (%d)\n", skge_avail(&skge->tx_ring));
3680 for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) {
3681 const struct skge_tx_desc *t = e->desc;
3682 seq_printf(seq, "%#x dma=%#x%08x %#x csum=%#x/%x/%x\n",
3683 t->control, t->dma_hi, t->dma_lo, t->status,
3684 t->csum_offs, t->csum_write, t->csum_start);
3685 }
3686
3687 seq_printf(seq, "\nRx Ring: \n");
3688 for (e = skge->rx_ring.to_clean; ; e = e->next) {
3689 const struct skge_rx_desc *r = e->desc;
3690
3691 if (r->control & BMU_OWN)
3692 break;
3693
3694 seq_printf(seq, "%#x dma=%#x%08x %#x %#x csum=%#x/%x\n",
3695 r->control, r->dma_hi, r->dma_lo, r->status,
3696 r->timestamp, r->csum1, r->csum1_start);
3697 }
3698
3699 return 0;
3700}
3701
3702static int skge_debug_open(struct inode *inode, struct file *file)
3703{
3704 return single_open(file, skge_debug_show, inode->i_private);
3705}
3706
3707static const struct file_operations skge_debug_fops = {
3708 .owner = THIS_MODULE,
3709 .open = skge_debug_open,
3710 .read = seq_read,
3711 .llseek = seq_lseek,
3712 .release = single_release,
3713};
3714
3715/*
3716 * Use network device events to create/remove/rename
3717 * debugfs file entries
3718 */
3719static int skge_device_event(struct notifier_block *unused,
3720 unsigned long event, void *ptr)
3721{
3722 struct net_device *dev = ptr;
3723 struct skge_port *skge;
3724 struct dentry *d;
3725
f80d032b 3726 if (dev->netdev_ops->ndo_open != &skge_up || !skge_debug)
678aa1f6
SH		 3727 goto done;
3728
3729 skge = netdev_priv(dev);
3730 switch(event) {
3731 case NETDEV_CHANGENAME:
3732 if (skge->debugfs) {
3733 d = debugfs_rename(skge_debug, skge->debugfs,
3734 skge_debug, dev->name);
3735 if (d)
3736 skge->debugfs = d;
3737 else {
3738 pr_info(PFX "%s: rename failed\n", dev->name);
3739 debugfs_remove(skge->debugfs);
3740 }
3741 }
3742 break;
3743
3744 case NETDEV_GOING_DOWN:
3745 if (skge->debugfs) {
3746 debugfs_remove(skge->debugfs);
3747 skge->debugfs = NULL;
3748 }
3749 break;
3750
3751 case NETDEV_UP:
3752 d = debugfs_create_file(dev->name, S_IRUGO,
3753 skge_debug, dev,
3754 &skge_debug_fops);
3755 if (!d || IS_ERR(d))
3756 pr_info(PFX "%s: debugfs create failed\n",
3757 dev->name);
3758 else
3759 skge->debugfs = d;
3760 break;
3761 }
3762
3763done:
3764 return NOTIFY_DONE;
3765}
3766
3767static struct notifier_block skge_notifier = {
3768 .notifier_call = skge_device_event,
3769};
3770
3771
3772static __init void skge_debug_init(void)
3773{
3774 struct dentry *ent;
3775
3776 ent = debugfs_create_dir("skge", NULL);
3777 if (!ent || IS_ERR(ent)) {
3778 pr_info(PFX "debugfs create directory failed\n");
3779 return;
3780 }
3781
3782 skge_debug = ent;
3783 register_netdevice_notifier(&skge_notifier);
3784}
3785
3786static __exit void skge_debug_cleanup(void)
3787{
3788 if (skge_debug) {
3789 unregister_netdevice_notifier(&skge_notifier);
3790 debugfs_remove(skge_debug);
3791 skge_debug = NULL;
3792 }
3793}
3794
3795#else
3796#define skge_debug_init()
3797#define skge_debug_cleanup()
3798#endif
3799
f80d032b
SH		 3800static const struct net_device_ops skge_netdev_ops = {
3801 .ndo_open = skge_up,
3802 .ndo_stop = skge_down,
00829823 3803 .ndo_start_xmit = skge_xmit_frame,
f80d032b
SH		 3804 .ndo_do_ioctl = skge_ioctl,
3805 .ndo_get_stats = skge_get_stats,
3806 .ndo_tx_timeout = skge_tx_timeout,
3807 .ndo_change_mtu = skge_change_mtu,
3808 .ndo_validate_addr = eth_validate_addr,
3809 .ndo_set_multicast_list = skge_set_multicast,
3810 .ndo_set_mac_address = skge_set_mac_address,
3811#ifdef CONFIG_NET_POLL_CONTROLLER
3812 .ndo_poll_controller = skge_netpoll,
3813#endif
3814};
3815
3816
baef58b1 3817/* Initialize network device */
981d0377
SH		 3818static struct net_device *skge_devinit(struct skge_hw *hw, int port,
3819 int highmem)
baef58b1
SH		 3820{
3821 struct skge_port *skge;
3822 struct net_device *dev = alloc_etherdev(sizeof(*skge));
3823
3824 if (!dev) {
1479d13c 3825 dev_err(&hw->pdev->dev, "etherdev alloc failed\n");
baef58b1
SH		 3826 return NULL;
3827 }
3828
baef58b1 3829 SET_NETDEV_DEV(dev, &hw->pdev->dev);
f80d032b
SH		 3830 dev->netdev_ops = &skge_netdev_ops;
3831 dev->ethtool_ops = &skge_ethtool_ops;
baef58b1 3832 dev->watchdog_timeo = TX_WATCHDOG;
baef58b1 3833 dev->irq = hw->pdev->irq;
513f533e 3834
981d0377
SH		 3835 if (highmem)
3836 dev->features |= NETIF_F_HIGHDMA;
baef58b1
SH		 3837
3838 skge = netdev_priv(dev);
bea3348e 3839 netif_napi_add(dev, &skge->napi, skge_poll, NAPI_WEIGHT);
baef58b1
SH		 3840 skge->netdev = dev;
3841 skge->hw = hw;
3842 skge->msg_enable = netif_msg_init(debug, default_msg);
9cbe330f 3843
baef58b1
SH		 3844 skge->tx_ring.count = DEFAULT_TX_RING_SIZE;
3845 skge->rx_ring.count = DEFAULT_RX_RING_SIZE;
3846
3847 /* Auto speed and flow control */
3848 skge->autoneg = AUTONEG_ENABLE;
5d5c8e03 3849 skge->flow_control = FLOW_MODE_SYM_OR_REM;
baef58b1
SH		 3850 skge->duplex = -1;
3851 skge->speed = -1;
31b619c5 3852 skge->advertising = skge_supported_modes(hw);
5b982c5b 3853
7b55a4a3 3854 if (device_can_wakeup(&hw->pdev->dev)) {
5b982c5b 3855 skge->wol = wol_supported(hw) & WAKE_MAGIC;
7b55a4a3
RW		 3856 device_set_wakeup_enable(&hw->pdev->dev, skge->wol);
3857 }
baef58b1
SH		 3858
3859 hw->dev[port] = dev;
3860
3861 skge->port = port;
3862
64f6b64d 3863 /* Only used for Genesis XMAC */
9cbe330f 3864 setup_timer(&skge->link_timer, xm_link_timer, (unsigned long) skge);
64f6b64d 3865
baef58b1
SH		 3866 if (hw->chip_id != CHIP_ID_GENESIS) {
3867 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
3868 skge->rx_csum = 1;
3869 }
3870
3871 /* read the mac address */
3872 memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN);
56230d53 3873 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
baef58b1
SH		 3874
3875 /* device is off until link detection */
3876 netif_carrier_off(dev);
3877 netif_stop_queue(dev);
3878
3879 return dev;
3880}
3881
3882static void __devinit skge_show_addr(struct net_device *dev)
3883{
3884 const struct skge_port *skge = netdev_priv(dev);
3885
3886 if (netif_msg_probe(skge))
e174961c
JB		 3887 printk(KERN_INFO PFX "%s: addr %pM\n",
3888 dev->name, dev->dev_addr);
baef58b1
SH		 3889}
3890
3891static int __devinit skge_probe(struct pci_dev *pdev,
3892 const struct pci_device_id *ent)
3893{
3894 struct net_device *dev, *dev1;
3895 struct skge_hw *hw;
3896 int err, using_dac = 0;
3897
203babb6
SH		 3898 err = pci_enable_device(pdev);
3899 if (err) {
1479d13c 3900 dev_err(&pdev->dev, "cannot enable PCI device\n");
baef58b1
SH		 3901 goto err_out;
3902 }
3903
203babb6
SH		 3904 err = pci_request_regions(pdev, DRV_NAME);
3905 if (err) {
1479d13c 3906 dev_err(&pdev->dev, "cannot obtain PCI resources\n");
baef58b1
SH		 3907 goto err_out_disable_pdev;
3908 }
3909
3910 pci_set_master(pdev);
3911
6a35528a 3912 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
baef58b1 3913 using_dac = 1;
6a35528a 3914 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
284901a9 3915 } else if (!(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) {
93aea718 3916 using_dac = 0;
284901a9 3917 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
93aea718
SH		 3918 }
3919
3920 if (err) {
1479d13c 3921 dev_err(&pdev->dev, "no usable DMA configuration\n");
93aea718 3922 goto err_out_free_regions;
baef58b1
SH		 3923 }
3924
3925#ifdef __BIG_ENDIAN
8f3f8193 3926 /* byte swap descriptors in hardware */
baef58b1
SH		 3927 {
3928 u32 reg;
3929
3930 pci_read_config_dword(pdev, PCI_DEV_REG2, &reg);
3931 reg |= PCI_REV_DESC;
3932 pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
3933 }
3934#endif
3935
3936 err = -ENOMEM;
415e69e6
MS		 3937 /* space for skge@pci:0000:04:00.0 */
3938 hw = kzalloc(sizeof(*hw) + strlen(DRV_NAME "@pci:" )
3939 + strlen(pci_name(pdev)) + 1, GFP_KERNEL);
baef58b1 3940 if (!hw) {
1479d13c 3941 dev_err(&pdev->dev, "cannot allocate hardware struct\n");
baef58b1
SH		 3942 goto err_out_free_regions;
3943 }
415e69e6 3944 sprintf(hw->irq_name, DRV_NAME "@pci:%s", pci_name(pdev));
baef58b1 3945
baef58b1 3946 hw->pdev = pdev;
d38efdd6 3947 spin_lock_init(&hw->hw_lock);
9cbe330f
SH		 3948 spin_lock_init(&hw->phy_lock);
3949 tasklet_init(&hw->phy_task, &skge_extirq, (unsigned long) hw);
baef58b1
SH		 3950
3951 hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
3952 if (!hw->regs) {
1479d13c 3953 dev_err(&pdev->dev, "cannot map device registers\n");
baef58b1
SH		 3954 goto err_out_free_hw;
3955 }
3956
baef58b1
SH		 3957 err = skge_reset(hw);
3958 if (err)
ccdaa2a9 3959 goto err_out_iounmap;
baef58b1 3960
7c7459d1
GKH		 3961 printk(KERN_INFO PFX DRV_VERSION " addr 0x%llx irq %d chip %s rev %d\n",
3962 (unsigned long long)pci_resource_start(pdev, 0), pdev->irq,
981d0377 3963 skge_board_name(hw), hw->chip_rev);
baef58b1 3964
ccdaa2a9
SH		 3965 dev = skge_devinit(hw, 0, using_dac);
3966 if (!dev)
baef58b1
SH		 3967 goto err_out_led_off;
3968
fae87592 3969 /* Some motherboards are broken and has zero in ROM. */
1479d13c
SH		 3970 if (!is_valid_ether_addr(dev->dev_addr))
3971 dev_warn(&pdev->dev, "bad (zero?) ethernet address in rom\n");
631ae320 3972
203babb6
SH		 3973 err = register_netdev(dev);
3974 if (err) {
1479d13c 3975 dev_err(&pdev->dev, "cannot register net device\n");
baef58b1
SH		 3976 goto err_out_free_netdev;
3977 }
3978
415e69e6 3979 err = request_irq(pdev->irq, skge_intr, IRQF_SHARED, hw->irq_name, hw);
ccdaa2a9 3980 if (err) {
1479d13c 3981 dev_err(&pdev->dev, "%s: cannot assign irq %d\n",
ccdaa2a9
SH		 3982 dev->name, pdev->irq);
3983 goto err_out_unregister;
3984 }
baef58b1
SH		 3985 skge_show_addr(dev);
3986
f1914226
MM		 3987 if (hw->ports > 1) {
3988 dev1 = skge_devinit(hw, 1, using_dac);
3989 if (dev1 && register_netdev(dev1) == 0)
baef58b1
SH		 3990 skge_show_addr(dev1);
3991 else {
3992 /* Failure to register second port need not be fatal */
1479d13c 3993 dev_warn(&pdev->dev, "register of second port failed\n");
baef58b1 3994 hw->dev[1] = NULL;
f1914226
MM		 3995 hw->ports = 1;
3996 if (dev1)
3997 free_netdev(dev1);
baef58b1
SH		 3998 }
3999 }
ccdaa2a9 4000 pci_set_drvdata(pdev, hw);
baef58b1
SH		 4001
4002 return 0;
4003
ccdaa2a9
SH		 4004err_out_unregister:
4005 unregister_netdev(dev);
baef58b1
SH		 4006err_out_free_netdev:
4007 free_netdev(dev);
4008err_out_led_off:
4009 skge_write16(hw, B0_LED, LED_STAT_OFF);
baef58b1
SH		 4010err_out_iounmap:
4011 iounmap(hw->regs);
4012err_out_free_hw:
4013 kfree(hw);
4014err_out_free_regions:
4015 pci_release_regions(pdev);
4016err_out_disable_pdev:
4017 pci_disable_device(pdev);
4018 pci_set_drvdata(pdev, NULL);
4019err_out:
4020 return err;
4021}
4022
4023static void __devexit skge_remove(struct pci_dev *pdev)
4024{
4025 struct skge_hw *hw = pci_get_drvdata(pdev);
4026 struct net_device *dev0, *dev1;
4027
95566065 4028 if (!hw)
baef58b1
SH		 4029 return;
4030
208491d8
SH		 4031 flush_scheduled_work();
4032
baef58b1
SH		 4033 if ((dev1 = hw->dev[1]))
4034 unregister_netdev(dev1);
4035 dev0 = hw->dev[0];
4036 unregister_netdev(dev0);
4037
9cbe330f
SH		 4038 tasklet_disable(&hw->phy_task);
4039
7c442fa1
SH		 4040 spin_lock_irq(&hw->hw_lock);
4041 hw->intr_mask = 0;
46a60f2d 4042 skge_write32(hw, B0_IMSK, 0);
78bc2186 4043 skge_read32(hw, B0_IMSK);
7c442fa1
SH		 4044 spin_unlock_irq(&hw->hw_lock);
4045
46a60f2d 4046 skge_write16(hw, B0_LED, LED_STAT_OFF);
46a60f2d
SH		 4047 skge_write8(hw, B0_CTST, CS_RST_SET);
4048
baef58b1
SH		 4049 free_irq(pdev->irq, hw);
4050 pci_release_regions(pdev);
4051 pci_disable_device(pdev);
4052 if (dev1)
4053 free_netdev(dev1);
4054 free_netdev(dev0);
46a60f2d 4055
baef58b1
SH		 4056 iounmap(hw->regs);
4057 kfree(hw);
4058 pci_set_drvdata(pdev, NULL);
4059}
4060
4061#ifdef CONFIG_PM
2a569579 4062static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
baef58b1
SH		 4063{
4064 struct skge_hw *hw = pci_get_drvdata(pdev);
a504e64a
SH		 4065 int i, err, wol = 0;
4066
e3b7df17
SH		 4067 if (!hw)
4068 return 0;
4069
a504e64a
SH		 4070 err = pci_save_state(pdev);
4071 if (err)
4072 return err;
baef58b1 4073
d38efdd6 4074 for (i = 0; i < hw->ports; i++) {
baef58b1 4075 struct net_device *dev = hw->dev[i];
a504e64a 4076 struct skge_port *skge = netdev_priv(dev);
baef58b1 4077
a504e64a
SH		 4078 if (netif_running(dev))
4079 skge_down(dev);
4080 if (skge->wol)
4081 skge_wol_init(skge);
d38efdd6 4082
a504e64a 4083 wol |= skge->wol;
baef58b1
SH		 4084 }
4085
d38efdd6 4086 skge_write32(hw, B0_IMSK, 0);
5177b324
RW		 4087
4088 pci_prepare_to_sleep(pdev);
baef58b1
SH		 4089
4090 return 0;
4091}
4092
4093static int skge_resume(struct pci_dev *pdev)
4094{
4095 struct skge_hw *hw = pci_get_drvdata(pdev);
d38efdd6 4096 int i, err;
baef58b1 4097
e3b7df17
SH		 4098 if (!hw)
4099 return 0;
4100
5177b324 4101 err = pci_back_from_sleep(pdev);
a504e64a
SH		 4102 if (err)
4103 goto out;
4104
4105 err = pci_restore_state(pdev);
4106 if (err)
4107 goto out;
4108
d38efdd6
SH		 4109 err = skge_reset(hw);
4110 if (err)
4111 goto out;
baef58b1 4112
d38efdd6 4113 for (i = 0; i < hw->ports; i++) {
baef58b1 4114 struct net_device *dev = hw->dev[i];
d38efdd6 4115
d38efdd6
SH		 4116 if (netif_running(dev)) {
4117 err = skge_up(dev);
4118
4119 if (err) {
4120 printk(KERN_ERR PFX "%s: could not up: %d\n",
4121 dev->name, err);
edd702e8 4122 dev_close(dev);
d38efdd6
SH		 4123 goto out;
4124 }
baef58b1
SH		 4125 }
4126 }
d38efdd6
SH		 4127out:
4128 return err;
baef58b1
SH		 4129}
4130#endif
4131
692412b3
SH		 4132static void skge_shutdown(struct pci_dev *pdev)
4133{
4134 struct skge_hw *hw = pci_get_drvdata(pdev);
4135 int i, wol = 0;
4136
e3b7df17
SH		 4137 if (!hw)
4138 return;
4139
692412b3
SH		 4140 for (i = 0; i < hw->ports; i++) {
4141 struct net_device *dev = hw->dev[i];
4142 struct skge_port *skge = netdev_priv(dev);
4143
4144 if (skge->wol)
4145 skge_wol_init(skge);
4146 wol |= skge->wol;
4147 }
4148
5177b324
RW		 4149 if (pci_enable_wake(pdev, PCI_D3cold, wol))
4150 pci_enable_wake(pdev, PCI_D3hot, wol);
692412b3
SH		 4151
4152 pci_disable_device(pdev);
4153 pci_set_power_state(pdev, PCI_D3hot);
4154
4155}
4156
baef58b1
SH		 4157static struct pci_driver skge_driver = {
4158 .name = DRV_NAME,
4159 .id_table = skge_id_table,
4160 .probe = skge_probe,
4161 .remove = __devexit_p(skge_remove),
4162#ifdef CONFIG_PM
4163 .suspend = skge_suspend,
4164 .resume = skge_resume,
4165#endif
692412b3 4166 .shutdown = skge_shutdown,
baef58b1
SH		 4167};
4168
4169static int __init skge_init_module(void)
4170{
678aa1f6 4171 skge_debug_init();
29917620 4172 return pci_register_driver(&skge_driver);
baef58b1
SH		 4173}
4174
4175static void __exit skge_cleanup_module(void)
4176{
4177 pci_unregister_driver(&skge_driver);
678aa1f6 4178 skge_debug_cleanup();
baef58b1
SH		 4179}
4180
4181module_init(skge_init_module);
4182module_exit(skge_cleanup_module);
kernel source for telekom puls (alcatel/mediatek)