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Commit | Line | Data |
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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 | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | */ | |
26 | ||
27 | #include <linux/config.h> | |
28 | #include <linux/kernel.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/moduleparam.h> | |
31 | #include <linux/netdevice.h> | |
32 | #include <linux/etherdevice.h> | |
33 | #include <linux/ethtool.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/if_vlan.h> | |
36 | #include <linux/ip.h> | |
37 | #include <linux/delay.h> | |
38 | #include <linux/crc32.h> | |
4075400b | 39 | #include <linux/dma-mapping.h> |
baef58b1 SH |
40 | #include <asm/irq.h> |
41 | ||
42 | #include "skge.h" | |
43 | ||
44 | #define DRV_NAME "skge" | |
54cfb5aa | 45 | #define DRV_VERSION "0.9" |
baef58b1 SH |
46 | #define PFX DRV_NAME " " |
47 | ||
48 | #define DEFAULT_TX_RING_SIZE 128 | |
49 | #define DEFAULT_RX_RING_SIZE 512 | |
50 | #define MAX_TX_RING_SIZE 1024 | |
51 | #define MAX_RX_RING_SIZE 4096 | |
19a33d4e SH |
52 | #define RX_COPY_THRESHOLD 128 |
53 | #define RX_BUF_SIZE 1536 | |
baef58b1 SH |
54 | #define PHY_RETRIES 1000 |
55 | #define ETH_JUMBO_MTU 9000 | |
56 | #define TX_WATCHDOG (5 * HZ) | |
57 | #define NAPI_WEIGHT 64 | |
6abebb53 | 58 | #define BLINK_MS 250 |
baef58b1 SH |
59 | |
60 | MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver"); | |
61 | MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>"); | |
62 | MODULE_LICENSE("GPL"); | |
63 | MODULE_VERSION(DRV_VERSION); | |
64 | ||
65 | static const u32 default_msg | |
66 | = NETIF_MSG_DRV| NETIF_MSG_PROBE| NETIF_MSG_LINK | |
67 | | NETIF_MSG_IFUP| NETIF_MSG_IFDOWN; | |
68 | ||
69 | static int debug = -1; /* defaults above */ | |
70 | module_param(debug, int, 0); | |
71 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
72 | ||
73 | static const struct pci_device_id skge_id_table[] = { | |
275834d1 SH |
74 | { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940) }, |
75 | { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940B) }, | |
76 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE) }, | |
77 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU) }, | |
275834d1 SH |
78 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, PCI_DEVICE_ID_DLINK_DGE510T), }, |
79 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) }, | |
80 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */ | |
81 | { PCI_DEVICE(PCI_VENDOR_ID_CNET, PCI_DEVICE_ID_CNET_GIGACARD) }, | |
275834d1 | 82 | { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1064) }, |
86f0cd50 | 83 | { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015, }, |
baef58b1 SH |
84 | { 0 } |
85 | }; | |
86 | MODULE_DEVICE_TABLE(pci, skge_id_table); | |
87 | ||
88 | static int skge_up(struct net_device *dev); | |
89 | static int skge_down(struct net_device *dev); | |
90 | static void skge_tx_clean(struct skge_port *skge); | |
6b0c1480 SH |
91 | static void xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); |
92 | static void gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); | |
baef58b1 SH |
93 | static void genesis_get_stats(struct skge_port *skge, u64 *data); |
94 | static void yukon_get_stats(struct skge_port *skge, u64 *data); | |
95 | static void yukon_init(struct skge_hw *hw, int port); | |
96 | static void yukon_reset(struct skge_hw *hw, int port); | |
97 | static void genesis_mac_init(struct skge_hw *hw, int port); | |
98 | static void genesis_reset(struct skge_hw *hw, int port); | |
45bada65 | 99 | static void genesis_link_up(struct skge_port *skge); |
baef58b1 | 100 | |
7e676d91 | 101 | /* Avoid conditionals by using array */ |
baef58b1 SH |
102 | static const int txqaddr[] = { Q_XA1, Q_XA2 }; |
103 | static const int rxqaddr[] = { Q_R1, Q_R2 }; | |
104 | static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F }; | |
105 | static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F }; | |
7e676d91 | 106 | static const u32 portirqmask[] = { IS_PORT_1, IS_PORT_2 }; |
baef58b1 SH |
107 | |
108 | /* Don't need to look at whole 16K. | |
109 | * last interesting register is descriptor poll timer. | |
110 | */ | |
111 | #define SKGE_REGS_LEN (29*128) | |
112 | ||
113 | static int skge_get_regs_len(struct net_device *dev) | |
114 | { | |
115 | return SKGE_REGS_LEN; | |
116 | } | |
117 | ||
118 | /* | |
119 | * Returns copy of control register region | |
120 | * I/O region is divided into banks and certain regions are unreadable | |
121 | */ | |
122 | static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
123 | void *p) | |
124 | { | |
125 | const struct skge_port *skge = netdev_priv(dev); | |
126 | unsigned long offs; | |
127 | const void __iomem *io = skge->hw->regs; | |
128 | static const unsigned long bankmap | |
129 | = (1<<0) | (1<<2) | (1<<8) | (1<<9) | |
130 | | (1<<12) | (1<<13) | (1<<14) | (1<<15) | (1<<16) | |
131 | | (1<<17) | (1<<20) | (1<<21) | (1<<22) | (1<<23) | |
132 | | (1<<24) | (1<<25) | (1<<26) | (1<<27) | (1<<28); | |
133 | ||
134 | regs->version = 1; | |
135 | for (offs = 0; offs < regs->len; offs += 128) { | |
136 | u32 len = min_t(u32, 128, regs->len - offs); | |
137 | ||
138 | if (bankmap & (1<<(offs/128))) | |
139 | memcpy_fromio(p + offs, io + offs, len); | |
140 | else | |
141 | memset(p + offs, 0, len); | |
142 | } | |
143 | } | |
144 | ||
145 | /* Wake on Lan only supported on Yukon chps with rev 1 or above */ | |
146 | static int wol_supported(const struct skge_hw *hw) | |
147 | { | |
148 | return !((hw->chip_id == CHIP_ID_GENESIS || | |
981d0377 | 149 | (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0))); |
baef58b1 SH |
150 | } |
151 | ||
152 | static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
153 | { | |
154 | struct skge_port *skge = netdev_priv(dev); | |
155 | ||
156 | wol->supported = wol_supported(skge->hw) ? WAKE_MAGIC : 0; | |
157 | wol->wolopts = skge->wol ? WAKE_MAGIC : 0; | |
158 | } | |
159 | ||
160 | static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
161 | { | |
162 | struct skge_port *skge = netdev_priv(dev); | |
163 | struct skge_hw *hw = skge->hw; | |
164 | ||
95566065 | 165 | if (wol->wolopts != WAKE_MAGIC && wol->wolopts != 0) |
baef58b1 SH |
166 | return -EOPNOTSUPP; |
167 | ||
168 | if (wol->wolopts == WAKE_MAGIC && !wol_supported(hw)) | |
169 | return -EOPNOTSUPP; | |
170 | ||
171 | skge->wol = wol->wolopts == WAKE_MAGIC; | |
172 | ||
173 | if (skge->wol) { | |
174 | memcpy_toio(hw->regs + WOL_MAC_ADDR, dev->dev_addr, ETH_ALEN); | |
175 | ||
176 | skge_write16(hw, WOL_CTRL_STAT, | |
177 | WOL_CTL_ENA_PME_ON_MAGIC_PKT | | |
178 | WOL_CTL_ENA_MAGIC_PKT_UNIT); | |
179 | } else | |
180 | skge_write16(hw, WOL_CTRL_STAT, WOL_CTL_DEFAULT); | |
181 | ||
182 | return 0; | |
183 | } | |
184 | ||
31b619c5 SH |
185 | /* Determine supported/adverised modes based on hardware. |
186 | * Note: ethtoool ADVERTISED_xxx == SUPPORTED_xxx | |
187 | */ | |
188 | static u32 skge_supported_modes(const struct skge_hw *hw) | |
189 | { | |
190 | u32 supported; | |
191 | ||
5e1705dd | 192 | if (hw->copper) { |
31b619c5 SH |
193 | supported = SUPPORTED_10baseT_Half |
194 | | SUPPORTED_10baseT_Full | |
195 | | SUPPORTED_100baseT_Half | |
196 | | SUPPORTED_100baseT_Full | |
197 | | SUPPORTED_1000baseT_Half | |
198 | | SUPPORTED_1000baseT_Full | |
199 | | SUPPORTED_Autoneg| SUPPORTED_TP; | |
200 | ||
201 | if (hw->chip_id == CHIP_ID_GENESIS) | |
202 | supported &= ~(SUPPORTED_10baseT_Half | |
203 | | SUPPORTED_10baseT_Full | |
204 | | SUPPORTED_100baseT_Half | |
205 | | SUPPORTED_100baseT_Full); | |
206 | ||
207 | else if (hw->chip_id == CHIP_ID_YUKON) | |
208 | supported &= ~SUPPORTED_1000baseT_Half; | |
209 | } else | |
210 | supported = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE | |
211 | | SUPPORTED_Autoneg; | |
212 | ||
213 | return supported; | |
214 | } | |
baef58b1 SH |
215 | |
216 | static int skge_get_settings(struct net_device *dev, | |
217 | struct ethtool_cmd *ecmd) | |
218 | { | |
219 | struct skge_port *skge = netdev_priv(dev); | |
220 | struct skge_hw *hw = skge->hw; | |
221 | ||
222 | ecmd->transceiver = XCVR_INTERNAL; | |
31b619c5 | 223 | ecmd->supported = skge_supported_modes(hw); |
baef58b1 | 224 | |
5e1705dd | 225 | if (hw->copper) { |
baef58b1 SH |
226 | ecmd->port = PORT_TP; |
227 | ecmd->phy_address = hw->phy_addr; | |
31b619c5 | 228 | } else |
baef58b1 | 229 | ecmd->port = PORT_FIBRE; |
baef58b1 SH |
230 | |
231 | ecmd->advertising = skge->advertising; | |
232 | ecmd->autoneg = skge->autoneg; | |
233 | ecmd->speed = skge->speed; | |
234 | ecmd->duplex = skge->duplex; | |
235 | return 0; | |
236 | } | |
237 | ||
baef58b1 SH |
238 | static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
239 | { | |
240 | struct skge_port *skge = netdev_priv(dev); | |
241 | const struct skge_hw *hw = skge->hw; | |
31b619c5 | 242 | u32 supported = skge_supported_modes(hw); |
baef58b1 SH |
243 | |
244 | if (ecmd->autoneg == AUTONEG_ENABLE) { | |
31b619c5 SH |
245 | ecmd->advertising = supported; |
246 | skge->duplex = -1; | |
247 | skge->speed = -1; | |
baef58b1 | 248 | } else { |
31b619c5 SH |
249 | u32 setting; |
250 | ||
2c668514 | 251 | switch (ecmd->speed) { |
baef58b1 | 252 | case SPEED_1000: |
31b619c5 SH |
253 | if (ecmd->duplex == DUPLEX_FULL) |
254 | setting = SUPPORTED_1000baseT_Full; | |
255 | else if (ecmd->duplex == DUPLEX_HALF) | |
256 | setting = SUPPORTED_1000baseT_Half; | |
257 | else | |
258 | return -EINVAL; | |
baef58b1 SH |
259 | break; |
260 | case SPEED_100: | |
31b619c5 SH |
261 | if (ecmd->duplex == DUPLEX_FULL) |
262 | setting = SUPPORTED_100baseT_Full; | |
263 | else if (ecmd->duplex == DUPLEX_HALF) | |
264 | setting = SUPPORTED_100baseT_Half; | |
265 | else | |
266 | return -EINVAL; | |
267 | break; | |
268 | ||
baef58b1 | 269 | case SPEED_10: |
31b619c5 SH |
270 | if (ecmd->duplex == DUPLEX_FULL) |
271 | setting = SUPPORTED_10baseT_Full; | |
272 | else if (ecmd->duplex == DUPLEX_HALF) | |
273 | setting = SUPPORTED_10baseT_Half; | |
274 | else | |
baef58b1 SH |
275 | return -EINVAL; |
276 | break; | |
277 | default: | |
278 | return -EINVAL; | |
279 | } | |
31b619c5 SH |
280 | |
281 | if ((setting & supported) == 0) | |
282 | return -EINVAL; | |
283 | ||
284 | skge->speed = ecmd->speed; | |
285 | skge->duplex = ecmd->duplex; | |
baef58b1 SH |
286 | } |
287 | ||
288 | skge->autoneg = ecmd->autoneg; | |
baef58b1 SH |
289 | skge->advertising = ecmd->advertising; |
290 | ||
291 | if (netif_running(dev)) { | |
292 | skge_down(dev); | |
293 | skge_up(dev); | |
294 | } | |
295 | return (0); | |
296 | } | |
297 | ||
298 | static void skge_get_drvinfo(struct net_device *dev, | |
299 | struct ethtool_drvinfo *info) | |
300 | { | |
301 | struct skge_port *skge = netdev_priv(dev); | |
302 | ||
303 | strcpy(info->driver, DRV_NAME); | |
304 | strcpy(info->version, DRV_VERSION); | |
305 | strcpy(info->fw_version, "N/A"); | |
306 | strcpy(info->bus_info, pci_name(skge->hw->pdev)); | |
307 | } | |
308 | ||
309 | static const struct skge_stat { | |
310 | char name[ETH_GSTRING_LEN]; | |
311 | u16 xmac_offset; | |
312 | u16 gma_offset; | |
313 | } skge_stats[] = { | |
314 | { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI }, | |
315 | { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI }, | |
316 | ||
317 | { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK }, | |
318 | { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK }, | |
319 | { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK }, | |
320 | { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK }, | |
321 | { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK }, | |
322 | { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK }, | |
323 | { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE }, | |
324 | { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE }, | |
325 | ||
326 | { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL }, | |
327 | { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL }, | |
328 | { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL }, | |
329 | { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL }, | |
330 | { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR }, | |
331 | { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV }, | |
332 | ||
333 | { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR }, | |
334 | { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT }, | |
335 | { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG }, | |
336 | { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR }, | |
337 | { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR }, | |
338 | }; | |
339 | ||
340 | static int skge_get_stats_count(struct net_device *dev) | |
341 | { | |
342 | return ARRAY_SIZE(skge_stats); | |
343 | } | |
344 | ||
345 | static void skge_get_ethtool_stats(struct net_device *dev, | |
346 | struct ethtool_stats *stats, u64 *data) | |
347 | { | |
348 | struct skge_port *skge = netdev_priv(dev); | |
349 | ||
350 | if (skge->hw->chip_id == CHIP_ID_GENESIS) | |
351 | genesis_get_stats(skge, data); | |
352 | else | |
353 | yukon_get_stats(skge, data); | |
354 | } | |
355 | ||
356 | /* Use hardware MIB variables for critical path statistics and | |
357 | * transmit feedback not reported at interrupt. | |
358 | * Other errors are accounted for in interrupt handler. | |
359 | */ | |
360 | static struct net_device_stats *skge_get_stats(struct net_device *dev) | |
361 | { | |
362 | struct skge_port *skge = netdev_priv(dev); | |
363 | u64 data[ARRAY_SIZE(skge_stats)]; | |
364 | ||
365 | if (skge->hw->chip_id == CHIP_ID_GENESIS) | |
366 | genesis_get_stats(skge, data); | |
367 | else | |
368 | yukon_get_stats(skge, data); | |
369 | ||
370 | skge->net_stats.tx_bytes = data[0]; | |
371 | skge->net_stats.rx_bytes = data[1]; | |
372 | skge->net_stats.tx_packets = data[2] + data[4] + data[6]; | |
373 | skge->net_stats.rx_packets = data[3] + data[5] + data[7]; | |
374 | skge->net_stats.multicast = data[5] + data[7]; | |
375 | skge->net_stats.collisions = data[10]; | |
376 | skge->net_stats.tx_aborted_errors = data[12]; | |
377 | ||
378 | return &skge->net_stats; | |
379 | } | |
380 | ||
381 | static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
382 | { | |
383 | int i; | |
384 | ||
95566065 | 385 | switch (stringset) { |
baef58b1 SH |
386 | case ETH_SS_STATS: |
387 | for (i = 0; i < ARRAY_SIZE(skge_stats); i++) | |
388 | memcpy(data + i * ETH_GSTRING_LEN, | |
389 | skge_stats[i].name, ETH_GSTRING_LEN); | |
390 | break; | |
391 | } | |
392 | } | |
393 | ||
394 | static void skge_get_ring_param(struct net_device *dev, | |
395 | struct ethtool_ringparam *p) | |
396 | { | |
397 | struct skge_port *skge = netdev_priv(dev); | |
398 | ||
399 | p->rx_max_pending = MAX_RX_RING_SIZE; | |
400 | p->tx_max_pending = MAX_TX_RING_SIZE; | |
401 | p->rx_mini_max_pending = 0; | |
402 | p->rx_jumbo_max_pending = 0; | |
403 | ||
404 | p->rx_pending = skge->rx_ring.count; | |
405 | p->tx_pending = skge->tx_ring.count; | |
406 | p->rx_mini_pending = 0; | |
407 | p->rx_jumbo_pending = 0; | |
408 | } | |
409 | ||
410 | static int skge_set_ring_param(struct net_device *dev, | |
411 | struct ethtool_ringparam *p) | |
412 | { | |
413 | struct skge_port *skge = netdev_priv(dev); | |
414 | ||
415 | if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE || | |
416 | p->tx_pending == 0 || p->tx_pending > MAX_TX_RING_SIZE) | |
417 | return -EINVAL; | |
418 | ||
419 | skge->rx_ring.count = p->rx_pending; | |
420 | skge->tx_ring.count = p->tx_pending; | |
421 | ||
422 | if (netif_running(dev)) { | |
423 | skge_down(dev); | |
424 | skge_up(dev); | |
425 | } | |
426 | ||
427 | return 0; | |
428 | } | |
429 | ||
430 | static u32 skge_get_msglevel(struct net_device *netdev) | |
431 | { | |
432 | struct skge_port *skge = netdev_priv(netdev); | |
433 | return skge->msg_enable; | |
434 | } | |
435 | ||
436 | static void skge_set_msglevel(struct net_device *netdev, u32 value) | |
437 | { | |
438 | struct skge_port *skge = netdev_priv(netdev); | |
439 | skge->msg_enable = value; | |
440 | } | |
441 | ||
442 | static int skge_nway_reset(struct net_device *dev) | |
443 | { | |
444 | struct skge_port *skge = netdev_priv(dev); | |
445 | struct skge_hw *hw = skge->hw; | |
446 | int port = skge->port; | |
447 | ||
448 | if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev)) | |
449 | return -EINVAL; | |
450 | ||
451 | spin_lock_bh(&hw->phy_lock); | |
452 | if (hw->chip_id == CHIP_ID_GENESIS) { | |
453 | genesis_reset(hw, port); | |
454 | genesis_mac_init(hw, port); | |
455 | } else { | |
456 | yukon_reset(hw, port); | |
457 | yukon_init(hw, port); | |
458 | } | |
459 | spin_unlock_bh(&hw->phy_lock); | |
460 | return 0; | |
461 | } | |
462 | ||
463 | static int skge_set_sg(struct net_device *dev, u32 data) | |
464 | { | |
465 | struct skge_port *skge = netdev_priv(dev); | |
466 | struct skge_hw *hw = skge->hw; | |
467 | ||
468 | if (hw->chip_id == CHIP_ID_GENESIS && data) | |
469 | return -EOPNOTSUPP; | |
470 | return ethtool_op_set_sg(dev, data); | |
471 | } | |
472 | ||
473 | static int skge_set_tx_csum(struct net_device *dev, u32 data) | |
474 | { | |
475 | struct skge_port *skge = netdev_priv(dev); | |
476 | struct skge_hw *hw = skge->hw; | |
477 | ||
478 | if (hw->chip_id == CHIP_ID_GENESIS && data) | |
479 | return -EOPNOTSUPP; | |
480 | ||
481 | return ethtool_op_set_tx_csum(dev, data); | |
482 | } | |
483 | ||
484 | static u32 skge_get_rx_csum(struct net_device *dev) | |
485 | { | |
486 | struct skge_port *skge = netdev_priv(dev); | |
487 | ||
488 | return skge->rx_csum; | |
489 | } | |
490 | ||
491 | /* Only Yukon supports checksum offload. */ | |
492 | static int skge_set_rx_csum(struct net_device *dev, u32 data) | |
493 | { | |
494 | struct skge_port *skge = netdev_priv(dev); | |
495 | ||
496 | if (skge->hw->chip_id == CHIP_ID_GENESIS && data) | |
497 | return -EOPNOTSUPP; | |
498 | ||
499 | skge->rx_csum = data; | |
500 | return 0; | |
501 | } | |
502 | ||
baef58b1 SH |
503 | static void skge_get_pauseparam(struct net_device *dev, |
504 | struct ethtool_pauseparam *ecmd) | |
505 | { | |
506 | struct skge_port *skge = netdev_priv(dev); | |
507 | ||
508 | ecmd->tx_pause = (skge->flow_control == FLOW_MODE_LOC_SEND) | |
509 | || (skge->flow_control == FLOW_MODE_SYMMETRIC); | |
510 | ecmd->rx_pause = (skge->flow_control == FLOW_MODE_REM_SEND) | |
511 | || (skge->flow_control == FLOW_MODE_SYMMETRIC); | |
512 | ||
513 | ecmd->autoneg = skge->autoneg; | |
514 | } | |
515 | ||
516 | static int skge_set_pauseparam(struct net_device *dev, | |
517 | struct ethtool_pauseparam *ecmd) | |
518 | { | |
519 | struct skge_port *skge = netdev_priv(dev); | |
520 | ||
521 | skge->autoneg = ecmd->autoneg; | |
522 | if (ecmd->rx_pause && ecmd->tx_pause) | |
523 | skge->flow_control = FLOW_MODE_SYMMETRIC; | |
95566065 | 524 | else if (ecmd->rx_pause && !ecmd->tx_pause) |
baef58b1 | 525 | skge->flow_control = FLOW_MODE_REM_SEND; |
95566065 | 526 | else if (!ecmd->rx_pause && ecmd->tx_pause) |
baef58b1 SH |
527 | skge->flow_control = FLOW_MODE_LOC_SEND; |
528 | else | |
529 | skge->flow_control = FLOW_MODE_NONE; | |
530 | ||
531 | if (netif_running(dev)) { | |
532 | skge_down(dev); | |
533 | skge_up(dev); | |
534 | } | |
535 | return 0; | |
536 | } | |
537 | ||
538 | /* Chip internal frequency for clock calculations */ | |
539 | static inline u32 hwkhz(const struct skge_hw *hw) | |
540 | { | |
541 | if (hw->chip_id == CHIP_ID_GENESIS) | |
542 | return 53215; /* or: 53.125 MHz */ | |
baef58b1 SH |
543 | else |
544 | return 78215; /* or: 78.125 MHz */ | |
545 | } | |
546 | ||
547 | /* Chip hz to microseconds */ | |
548 | static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks) | |
549 | { | |
550 | return (ticks * 1000) / hwkhz(hw); | |
551 | } | |
552 | ||
553 | /* Microseconds to chip hz */ | |
554 | static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec) | |
555 | { | |
556 | return hwkhz(hw) * usec / 1000; | |
557 | } | |
558 | ||
559 | static int skge_get_coalesce(struct net_device *dev, | |
560 | struct ethtool_coalesce *ecmd) | |
561 | { | |
562 | struct skge_port *skge = netdev_priv(dev); | |
563 | struct skge_hw *hw = skge->hw; | |
564 | int port = skge->port; | |
565 | ||
566 | ecmd->rx_coalesce_usecs = 0; | |
567 | ecmd->tx_coalesce_usecs = 0; | |
568 | ||
569 | if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) { | |
570 | u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI)); | |
571 | u32 msk = skge_read32(hw, B2_IRQM_MSK); | |
572 | ||
573 | if (msk & rxirqmask[port]) | |
574 | ecmd->rx_coalesce_usecs = delay; | |
575 | if (msk & txirqmask[port]) | |
576 | ecmd->tx_coalesce_usecs = delay; | |
577 | } | |
578 | ||
579 | return 0; | |
580 | } | |
581 | ||
582 | /* Note: interrupt timer is per board, but can turn on/off per port */ | |
583 | static int skge_set_coalesce(struct net_device *dev, | |
584 | struct ethtool_coalesce *ecmd) | |
585 | { | |
586 | struct skge_port *skge = netdev_priv(dev); | |
587 | struct skge_hw *hw = skge->hw; | |
588 | int port = skge->port; | |
589 | u32 msk = skge_read32(hw, B2_IRQM_MSK); | |
590 | u32 delay = 25; | |
591 | ||
592 | if (ecmd->rx_coalesce_usecs == 0) | |
593 | msk &= ~rxirqmask[port]; | |
594 | else if (ecmd->rx_coalesce_usecs < 25 || | |
595 | ecmd->rx_coalesce_usecs > 33333) | |
596 | return -EINVAL; | |
597 | else { | |
598 | msk |= rxirqmask[port]; | |
599 | delay = ecmd->rx_coalesce_usecs; | |
600 | } | |
601 | ||
602 | if (ecmd->tx_coalesce_usecs == 0) | |
603 | msk &= ~txirqmask[port]; | |
604 | else if (ecmd->tx_coalesce_usecs < 25 || | |
605 | ecmd->tx_coalesce_usecs > 33333) | |
606 | return -EINVAL; | |
607 | else { | |
608 | msk |= txirqmask[port]; | |
609 | delay = min(delay, ecmd->rx_coalesce_usecs); | |
610 | } | |
611 | ||
612 | skge_write32(hw, B2_IRQM_MSK, msk); | |
613 | if (msk == 0) | |
614 | skge_write32(hw, B2_IRQM_CTRL, TIM_STOP); | |
615 | else { | |
616 | skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay)); | |
617 | skge_write32(hw, B2_IRQM_CTRL, TIM_START); | |
618 | } | |
619 | return 0; | |
620 | } | |
621 | ||
6abebb53 SH |
622 | enum led_mode { LED_MODE_OFF, LED_MODE_ON, LED_MODE_TST }; |
623 | static void skge_led(struct skge_port *skge, enum led_mode mode) | |
baef58b1 | 624 | { |
6abebb53 SH |
625 | struct skge_hw *hw = skge->hw; |
626 | int port = skge->port; | |
627 | ||
628 | spin_lock_bh(&hw->phy_lock); | |
baef58b1 | 629 | if (hw->chip_id == CHIP_ID_GENESIS) { |
6abebb53 SH |
630 | switch (mode) { |
631 | case LED_MODE_OFF: | |
632 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF); | |
633 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); | |
634 | skge_write32(hw, SK_REG(port, RX_LED_VAL), 0); | |
635 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF); | |
636 | break; | |
baef58b1 | 637 | |
6abebb53 SH |
638 | case LED_MODE_ON: |
639 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON); | |
640 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON); | |
baef58b1 | 641 | |
6abebb53 SH |
642 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); |
643 | skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START); | |
baef58b1 | 644 | |
6abebb53 | 645 | break; |
baef58b1 | 646 | |
6abebb53 SH |
647 | case LED_MODE_TST: |
648 | skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON); | |
649 | skge_write32(hw, SK_REG(port, RX_LED_VAL), 100); | |
650 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); | |
baef58b1 | 651 | |
6abebb53 SH |
652 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON); |
653 | break; | |
654 | } | |
baef58b1 | 655 | } else { |
6abebb53 SH |
656 | switch (mode) { |
657 | case LED_MODE_OFF: | |
658 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); | |
659 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, | |
660 | PHY_M_LED_MO_DUP(MO_LED_OFF) | | |
661 | PHY_M_LED_MO_10(MO_LED_OFF) | | |
662 | PHY_M_LED_MO_100(MO_LED_OFF) | | |
663 | PHY_M_LED_MO_1000(MO_LED_OFF) | | |
664 | PHY_M_LED_MO_RX(MO_LED_OFF)); | |
665 | break; | |
666 | case LED_MODE_ON: | |
667 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, | |
668 | PHY_M_LED_PULS_DUR(PULS_170MS) | | |
669 | PHY_M_LED_BLINK_RT(BLINK_84MS) | | |
670 | PHY_M_LEDC_TX_CTRL | | |
671 | PHY_M_LEDC_DP_CTRL); | |
672 | ||
673 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, | |
674 | PHY_M_LED_MO_RX(MO_LED_OFF) | | |
675 | (skge->speed == SPEED_100 ? | |
676 | PHY_M_LED_MO_100(MO_LED_ON) : 0)); | |
677 | break; | |
678 | case LED_MODE_TST: | |
679 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); | |
680 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, | |
681 | PHY_M_LED_MO_DUP(MO_LED_ON) | | |
682 | PHY_M_LED_MO_10(MO_LED_ON) | | |
683 | PHY_M_LED_MO_100(MO_LED_ON) | | |
684 | PHY_M_LED_MO_1000(MO_LED_ON) | | |
685 | PHY_M_LED_MO_RX(MO_LED_ON)); | |
686 | } | |
baef58b1 | 687 | } |
4ff6ac05 | 688 | spin_unlock_bh(&hw->phy_lock); |
baef58b1 SH |
689 | } |
690 | ||
691 | /* blink LED's for finding board */ | |
692 | static int skge_phys_id(struct net_device *dev, u32 data) | |
693 | { | |
694 | struct skge_port *skge = netdev_priv(dev); | |
6abebb53 SH |
695 | unsigned long ms; |
696 | enum led_mode mode = LED_MODE_TST; | |
baef58b1 | 697 | |
95566065 | 698 | if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ)) |
6abebb53 SH |
699 | ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT / HZ) * 1000; |
700 | else | |
701 | ms = data * 1000; | |
baef58b1 | 702 | |
6abebb53 SH |
703 | while (ms > 0) { |
704 | skge_led(skge, mode); | |
705 | mode ^= LED_MODE_TST; | |
baef58b1 | 706 | |
6abebb53 SH |
707 | if (msleep_interruptible(BLINK_MS)) |
708 | break; | |
709 | ms -= BLINK_MS; | |
710 | } | |
baef58b1 | 711 | |
6abebb53 SH |
712 | /* back to regular LED state */ |
713 | skge_led(skge, netif_running(dev) ? LED_MODE_ON : LED_MODE_OFF); | |
baef58b1 SH |
714 | |
715 | return 0; | |
716 | } | |
717 | ||
718 | static struct ethtool_ops skge_ethtool_ops = { | |
719 | .get_settings = skge_get_settings, | |
720 | .set_settings = skge_set_settings, | |
721 | .get_drvinfo = skge_get_drvinfo, | |
722 | .get_regs_len = skge_get_regs_len, | |
723 | .get_regs = skge_get_regs, | |
724 | .get_wol = skge_get_wol, | |
725 | .set_wol = skge_set_wol, | |
726 | .get_msglevel = skge_get_msglevel, | |
727 | .set_msglevel = skge_set_msglevel, | |
728 | .nway_reset = skge_nway_reset, | |
729 | .get_link = ethtool_op_get_link, | |
730 | .get_ringparam = skge_get_ring_param, | |
731 | .set_ringparam = skge_set_ring_param, | |
732 | .get_pauseparam = skge_get_pauseparam, | |
733 | .set_pauseparam = skge_set_pauseparam, | |
734 | .get_coalesce = skge_get_coalesce, | |
735 | .set_coalesce = skge_set_coalesce, | |
baef58b1 SH |
736 | .get_sg = ethtool_op_get_sg, |
737 | .set_sg = skge_set_sg, | |
738 | .get_tx_csum = ethtool_op_get_tx_csum, | |
739 | .set_tx_csum = skge_set_tx_csum, | |
740 | .get_rx_csum = skge_get_rx_csum, | |
741 | .set_rx_csum = skge_set_rx_csum, | |
742 | .get_strings = skge_get_strings, | |
743 | .phys_id = skge_phys_id, | |
744 | .get_stats_count = skge_get_stats_count, | |
745 | .get_ethtool_stats = skge_get_ethtool_stats, | |
746 | }; | |
747 | ||
748 | /* | |
749 | * Allocate ring elements and chain them together | |
750 | * One-to-one association of board descriptors with ring elements | |
751 | */ | |
752 | static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u64 base) | |
753 | { | |
754 | struct skge_tx_desc *d; | |
755 | struct skge_element *e; | |
756 | int i; | |
757 | ||
758 | ring->start = kmalloc(sizeof(*e)*ring->count, GFP_KERNEL); | |
759 | if (!ring->start) | |
760 | return -ENOMEM; | |
761 | ||
762 | for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) { | |
763 | e->desc = d; | |
19a33d4e | 764 | e->skb = NULL; |
baef58b1 SH |
765 | if (i == ring->count - 1) { |
766 | e->next = ring->start; | |
767 | d->next_offset = base; | |
768 | } else { | |
769 | e->next = e + 1; | |
770 | d->next_offset = base + (i+1) * sizeof(*d); | |
771 | } | |
772 | } | |
773 | ring->to_use = ring->to_clean = ring->start; | |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
19a33d4e | 778 | static struct sk_buff *skge_rx_alloc(struct net_device *dev, unsigned int size) |
baef58b1 | 779 | { |
19a33d4e | 780 | struct sk_buff *skb = dev_alloc_skb(size); |
baef58b1 | 781 | |
19a33d4e SH |
782 | if (likely(skb)) { |
783 | skb->dev = dev; | |
784 | skb_reserve(skb, NET_IP_ALIGN); | |
baef58b1 | 785 | } |
19a33d4e SH |
786 | return skb; |
787 | } | |
baef58b1 | 788 | |
19a33d4e SH |
789 | /* Allocate and setup a new buffer for receiving */ |
790 | static void skge_rx_setup(struct skge_port *skge, struct skge_element *e, | |
791 | struct sk_buff *skb, unsigned int bufsize) | |
792 | { | |
793 | struct skge_rx_desc *rd = e->desc; | |
794 | u64 map; | |
baef58b1 SH |
795 | |
796 | map = pci_map_single(skge->hw->pdev, skb->data, bufsize, | |
797 | PCI_DMA_FROMDEVICE); | |
798 | ||
799 | rd->dma_lo = map; | |
800 | rd->dma_hi = map >> 32; | |
801 | e->skb = skb; | |
802 | rd->csum1_start = ETH_HLEN; | |
803 | rd->csum2_start = ETH_HLEN; | |
804 | rd->csum1 = 0; | |
805 | rd->csum2 = 0; | |
806 | ||
807 | wmb(); | |
808 | ||
809 | rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize; | |
810 | pci_unmap_addr_set(e, mapaddr, map); | |
811 | pci_unmap_len_set(e, maplen, bufsize); | |
baef58b1 SH |
812 | } |
813 | ||
19a33d4e SH |
814 | /* Resume receiving using existing skb, |
815 | * Note: DMA address is not changed by chip. | |
816 | * MTU not changed while receiver active. | |
817 | */ | |
818 | static void skge_rx_reuse(struct skge_element *e, unsigned int size) | |
819 | { | |
820 | struct skge_rx_desc *rd = e->desc; | |
821 | ||
822 | rd->csum2 = 0; | |
823 | rd->csum2_start = ETH_HLEN; | |
824 | ||
825 | wmb(); | |
826 | ||
827 | rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | size; | |
828 | } | |
829 | ||
830 | ||
831 | /* Free all buffers in receive ring, assumes receiver stopped */ | |
baef58b1 SH |
832 | static void skge_rx_clean(struct skge_port *skge) |
833 | { | |
834 | struct skge_hw *hw = skge->hw; | |
835 | struct skge_ring *ring = &skge->rx_ring; | |
836 | struct skge_element *e; | |
837 | ||
19a33d4e SH |
838 | e = ring->start; |
839 | do { | |
baef58b1 SH |
840 | struct skge_rx_desc *rd = e->desc; |
841 | rd->control = 0; | |
19a33d4e SH |
842 | if (e->skb) { |
843 | pci_unmap_single(hw->pdev, | |
844 | pci_unmap_addr(e, mapaddr), | |
845 | pci_unmap_len(e, maplen), | |
846 | PCI_DMA_FROMDEVICE); | |
847 | dev_kfree_skb(e->skb); | |
848 | e->skb = NULL; | |
849 | } | |
850 | } while ((e = e->next) != ring->start); | |
baef58b1 SH |
851 | } |
852 | ||
19a33d4e | 853 | |
baef58b1 | 854 | /* Allocate buffers for receive ring |
19a33d4e | 855 | * For receive: to_clean is next received frame. |
baef58b1 SH |
856 | */ |
857 | static int skge_rx_fill(struct skge_port *skge) | |
858 | { | |
859 | struct skge_ring *ring = &skge->rx_ring; | |
860 | struct skge_element *e; | |
19a33d4e | 861 | unsigned int bufsize = skge->rx_buf_size; |
baef58b1 | 862 | |
19a33d4e SH |
863 | e = ring->start; |
864 | do { | |
865 | struct sk_buff *skb = skge_rx_alloc(skge->netdev, bufsize); | |
baef58b1 | 866 | |
19a33d4e SH |
867 | if (!skb) |
868 | return -ENOMEM; | |
869 | ||
870 | skge_rx_setup(skge, e, skb, bufsize); | |
871 | } while ( (e = e->next) != ring->start); | |
baef58b1 | 872 | |
19a33d4e SH |
873 | ring->to_clean = ring->start; |
874 | return 0; | |
baef58b1 SH |
875 | } |
876 | ||
877 | static void skge_link_up(struct skge_port *skge) | |
878 | { | |
54cfb5aa SH |
879 | skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), |
880 | LED_BLK_OFF|LED_SYNC_OFF|LED_ON); | |
881 | ||
baef58b1 SH |
882 | netif_carrier_on(skge->netdev); |
883 | if (skge->tx_avail > MAX_SKB_FRAGS + 1) | |
884 | netif_wake_queue(skge->netdev); | |
885 | ||
886 | if (netif_msg_link(skge)) | |
887 | printk(KERN_INFO PFX | |
888 | "%s: Link is up at %d Mbps, %s duplex, flow control %s\n", | |
889 | skge->netdev->name, skge->speed, | |
890 | skge->duplex == DUPLEX_FULL ? "full" : "half", | |
891 | (skge->flow_control == FLOW_MODE_NONE) ? "none" : | |
892 | (skge->flow_control == FLOW_MODE_LOC_SEND) ? "tx only" : | |
893 | (skge->flow_control == FLOW_MODE_REM_SEND) ? "rx only" : | |
894 | (skge->flow_control == FLOW_MODE_SYMMETRIC) ? "tx and rx" : | |
895 | "unknown"); | |
896 | } | |
897 | ||
898 | static void skge_link_down(struct skge_port *skge) | |
899 | { | |
54cfb5aa | 900 | skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF); |
baef58b1 SH |
901 | netif_carrier_off(skge->netdev); |
902 | netif_stop_queue(skge->netdev); | |
903 | ||
904 | if (netif_msg_link(skge)) | |
905 | printk(KERN_INFO PFX "%s: Link is down.\n", skge->netdev->name); | |
906 | } | |
907 | ||
6b0c1480 | 908 | static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg) |
baef58b1 SH |
909 | { |
910 | int i; | |
911 | u16 v; | |
912 | ||
6b0c1480 SH |
913 | xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); |
914 | v = xm_read16(hw, port, XM_PHY_DATA); | |
baef58b1 | 915 | |
89bf5f23 SH |
916 | /* Need to wait for external PHY */ |
917 | for (i = 0; i < PHY_RETRIES; i++) { | |
918 | udelay(1); | |
919 | if (xm_read16(hw, port, XM_MMU_CMD) | |
920 | & XM_MMU_PHY_RDY) | |
921 | goto ready; | |
baef58b1 SH |
922 | } |
923 | ||
89bf5f23 SH |
924 | printk(KERN_WARNING PFX "%s: phy read timed out\n", |
925 | hw->dev[port]->name); | |
926 | return 0; | |
927 | ready: | |
928 | v = xm_read16(hw, port, XM_PHY_DATA); | |
929 | ||
baef58b1 SH |
930 | return v; |
931 | } | |
932 | ||
6b0c1480 | 933 | static void xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) |
baef58b1 SH |
934 | { |
935 | int i; | |
936 | ||
6b0c1480 | 937 | xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); |
baef58b1 | 938 | for (i = 0; i < PHY_RETRIES; i++) { |
6b0c1480 | 939 | if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) |
baef58b1 | 940 | goto ready; |
89bf5f23 | 941 | udelay(1); |
baef58b1 SH |
942 | } |
943 | printk(KERN_WARNING PFX "%s: phy write failed to come ready\n", | |
944 | hw->dev[port]->name); | |
945 | ||
946 | ||
947 | ready: | |
6b0c1480 | 948 | xm_write16(hw, port, XM_PHY_DATA, val); |
baef58b1 SH |
949 | for (i = 0; i < PHY_RETRIES; i++) { |
950 | udelay(1); | |
6b0c1480 | 951 | if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) |
baef58b1 SH |
952 | return; |
953 | } | |
954 | printk(KERN_WARNING PFX "%s: phy write timed out\n", | |
955 | hw->dev[port]->name); | |
956 | } | |
957 | ||
958 | static void genesis_init(struct skge_hw *hw) | |
959 | { | |
960 | /* set blink source counter */ | |
961 | skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100); | |
962 | skge_write8(hw, B2_BSC_CTRL, BSC_START); | |
963 | ||
964 | /* configure mac arbiter */ | |
965 | skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR); | |
966 | ||
967 | /* configure mac arbiter timeout values */ | |
968 | skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53); | |
969 | skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53); | |
970 | skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53); | |
971 | skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53); | |
972 | ||
973 | skge_write8(hw, B3_MA_RCINI_RX1, 0); | |
974 | skge_write8(hw, B3_MA_RCINI_RX2, 0); | |
975 | skge_write8(hw, B3_MA_RCINI_TX1, 0); | |
976 | skge_write8(hw, B3_MA_RCINI_TX2, 0); | |
977 | ||
978 | /* configure packet arbiter timeout */ | |
979 | skge_write16(hw, B3_PA_CTRL, PA_RST_CLR); | |
980 | skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX); | |
981 | skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX); | |
982 | skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX); | |
983 | skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX); | |
984 | } | |
985 | ||
986 | static void genesis_reset(struct skge_hw *hw, int port) | |
987 | { | |
45bada65 | 988 | const u8 zero[8] = { 0 }; |
baef58b1 SH |
989 | |
990 | /* reset the statistics module */ | |
6b0c1480 SH |
991 | xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT); |
992 | xm_write16(hw, port, XM_IMSK, 0xffff); /* disable XMAC IRQs */ | |
993 | xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */ | |
994 | xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */ | |
995 | xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */ | |
baef58b1 | 996 | |
89bf5f23 SH |
997 | /* disable Broadcom PHY IRQ */ |
998 | xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff); | |
baef58b1 | 999 | |
45bada65 | 1000 | xm_outhash(hw, port, XM_HSM, zero); |
baef58b1 SH |
1001 | } |
1002 | ||
1003 | ||
45bada65 SH |
1004 | /* Convert mode to MII values */ |
1005 | static const u16 phy_pause_map[] = { | |
1006 | [FLOW_MODE_NONE] = 0, | |
1007 | [FLOW_MODE_LOC_SEND] = PHY_AN_PAUSE_ASYM, | |
1008 | [FLOW_MODE_SYMMETRIC] = PHY_AN_PAUSE_CAP, | |
1009 | [FLOW_MODE_REM_SEND] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM, | |
1010 | }; | |
1011 | ||
1012 | ||
1013 | /* Check status of Broadcom phy link */ | |
1014 | static void bcom_check_link(struct skge_hw *hw, int port) | |
baef58b1 | 1015 | { |
45bada65 SH |
1016 | struct net_device *dev = hw->dev[port]; |
1017 | struct skge_port *skge = netdev_priv(dev); | |
1018 | u16 status; | |
1019 | ||
1020 | /* read twice because of latch */ | |
1021 | (void) xm_phy_read(hw, port, PHY_BCOM_STAT); | |
1022 | status = xm_phy_read(hw, port, PHY_BCOM_STAT); | |
1023 | ||
1024 | pr_debug("bcom_check_link status=0x%x\n", status); | |
1025 | ||
1026 | if ((status & PHY_ST_LSYNC) == 0) { | |
1027 | u16 cmd = xm_read16(hw, port, XM_MMU_CMD); | |
1028 | cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX); | |
1029 | xm_write16(hw, port, XM_MMU_CMD, cmd); | |
1030 | /* dummy read to ensure writing */ | |
1031 | (void) xm_read16(hw, port, XM_MMU_CMD); | |
1032 | ||
1033 | if (netif_carrier_ok(dev)) | |
1034 | skge_link_down(skge); | |
1035 | } else { | |
1036 | if (skge->autoneg == AUTONEG_ENABLE && | |
1037 | (status & PHY_ST_AN_OVER)) { | |
1038 | u16 lpa = xm_phy_read(hw, port, PHY_BCOM_AUNE_LP); | |
1039 | u16 aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT); | |
1040 | ||
1041 | if (lpa & PHY_B_AN_RF) { | |
1042 | printk(KERN_NOTICE PFX "%s: remote fault\n", | |
1043 | dev->name); | |
1044 | return; | |
1045 | } | |
1046 | ||
1047 | /* Check Duplex mismatch */ | |
2c668514 | 1048 | switch (aux & PHY_B_AS_AN_RES_MSK) { |
45bada65 SH |
1049 | case PHY_B_RES_1000FD: |
1050 | skge->duplex = DUPLEX_FULL; | |
1051 | break; | |
1052 | case PHY_B_RES_1000HD: | |
1053 | skge->duplex = DUPLEX_HALF; | |
1054 | break; | |
1055 | default: | |
1056 | printk(KERN_NOTICE PFX "%s: duplex mismatch\n", | |
1057 | dev->name); | |
1058 | return; | |
1059 | } | |
1060 | ||
1061 | ||
1062 | /* We are using IEEE 802.3z/D5.0 Table 37-4 */ | |
1063 | switch (aux & PHY_B_AS_PAUSE_MSK) { | |
1064 | case PHY_B_AS_PAUSE_MSK: | |
1065 | skge->flow_control = FLOW_MODE_SYMMETRIC; | |
1066 | break; | |
1067 | case PHY_B_AS_PRR: | |
1068 | skge->flow_control = FLOW_MODE_REM_SEND; | |
1069 | break; | |
1070 | case PHY_B_AS_PRT: | |
1071 | skge->flow_control = FLOW_MODE_LOC_SEND; | |
1072 | break; | |
1073 | default: | |
1074 | skge->flow_control = FLOW_MODE_NONE; | |
1075 | } | |
1076 | ||
1077 | skge->speed = SPEED_1000; | |
1078 | } | |
1079 | ||
1080 | if (!netif_carrier_ok(dev)) | |
1081 | genesis_link_up(skge); | |
1082 | } | |
1083 | } | |
1084 | ||
1085 | /* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional | |
1086 | * Phy on for 100 or 10Mbit operation | |
1087 | */ | |
1088 | static void bcom_phy_init(struct skge_port *skge, int jumbo) | |
1089 | { | |
1090 | struct skge_hw *hw = skge->hw; | |
1091 | int port = skge->port; | |
baef58b1 | 1092 | int i; |
45bada65 | 1093 | u16 id1, r, ext, ctl; |
baef58b1 SH |
1094 | |
1095 | /* magic workaround patterns for Broadcom */ | |
1096 | static const struct { | |
1097 | u16 reg; | |
1098 | u16 val; | |
1099 | } A1hack[] = { | |
1100 | { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 }, | |
1101 | { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 }, | |
1102 | { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 }, | |
1103 | { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 }, | |
1104 | }, C0hack[] = { | |
1105 | { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 }, | |
1106 | { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 }, | |
1107 | }; | |
1108 | ||
45bada65 SH |
1109 | pr_debug("bcom_phy_init\n"); |
1110 | ||
1111 | /* read Id from external PHY (all have the same address) */ | |
1112 | id1 = xm_phy_read(hw, port, PHY_XMAC_ID1); | |
1113 | ||
1114 | /* Optimize MDIO transfer by suppressing preamble. */ | |
1115 | r = xm_read16(hw, port, XM_MMU_CMD); | |
1116 | r |= XM_MMU_NO_PRE; | |
1117 | xm_write16(hw, port, XM_MMU_CMD,r); | |
1118 | ||
2c668514 | 1119 | switch (id1) { |
45bada65 SH |
1120 | case PHY_BCOM_ID1_C0: |
1121 | /* | |
1122 | * Workaround BCOM Errata for the C0 type. | |
1123 | * Write magic patterns to reserved registers. | |
1124 | */ | |
1125 | for (i = 0; i < ARRAY_SIZE(C0hack); i++) | |
1126 | xm_phy_write(hw, port, | |
1127 | C0hack[i].reg, C0hack[i].val); | |
1128 | ||
1129 | break; | |
1130 | case PHY_BCOM_ID1_A1: | |
1131 | /* | |
1132 | * Workaround BCOM Errata for the A1 type. | |
1133 | * Write magic patterns to reserved registers. | |
1134 | */ | |
1135 | for (i = 0; i < ARRAY_SIZE(A1hack); i++) | |
1136 | xm_phy_write(hw, port, | |
1137 | A1hack[i].reg, A1hack[i].val); | |
1138 | break; | |
1139 | } | |
1140 | ||
1141 | /* | |
1142 | * Workaround BCOM Errata (#10523) for all BCom PHYs. | |
1143 | * Disable Power Management after reset. | |
1144 | */ | |
1145 | r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL); | |
1146 | r |= PHY_B_AC_DIS_PM; | |
1147 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r); | |
1148 | ||
1149 | /* Dummy read */ | |
1150 | xm_read16(hw, port, XM_ISRC); | |
1151 | ||
1152 | ext = PHY_B_PEC_EN_LTR; /* enable tx led */ | |
1153 | ctl = PHY_CT_SP1000; /* always 1000mbit */ | |
1154 | ||
1155 | if (skge->autoneg == AUTONEG_ENABLE) { | |
1156 | /* | |
1157 | * Workaround BCOM Errata #1 for the C5 type. | |
1158 | * 1000Base-T Link Acquisition Failure in Slave Mode | |
1159 | * Set Repeater/DTE bit 10 of the 1000Base-T Control Register | |
1160 | */ | |
1161 | u16 adv = PHY_B_1000C_RD; | |
1162 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1163 | adv |= PHY_B_1000C_AHD; | |
1164 | if (skge->advertising & ADVERTISED_1000baseT_Full) | |
1165 | adv |= PHY_B_1000C_AFD; | |
1166 | xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, adv); | |
1167 | ||
1168 | ctl |= PHY_CT_ANE | PHY_CT_RE_CFG; | |
1169 | } else { | |
1170 | if (skge->duplex == DUPLEX_FULL) | |
1171 | ctl |= PHY_CT_DUP_MD; | |
1172 | /* Force to slave */ | |
1173 | xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, PHY_B_1000C_MSE); | |
1174 | } | |
1175 | ||
1176 | /* Set autonegotiation pause parameters */ | |
1177 | xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV, | |
1178 | phy_pause_map[skge->flow_control] | PHY_AN_CSMA); | |
1179 | ||
1180 | /* Handle Jumbo frames */ | |
1181 | if (jumbo) { | |
1182 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, | |
1183 | PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK); | |
1184 | ||
1185 | ext |= PHY_B_PEC_HIGH_LA; | |
1186 | ||
1187 | } | |
1188 | ||
1189 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ext); | |
1190 | xm_phy_write(hw, port, PHY_BCOM_CTRL, ctl); | |
1191 | ||
1192 | /* Use link status change interrrupt */ | |
1193 | xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); | |
1194 | ||
1195 | bcom_check_link(hw, port); | |
1196 | } | |
1197 | ||
1198 | static void genesis_mac_init(struct skge_hw *hw, int port) | |
1199 | { | |
1200 | struct net_device *dev = hw->dev[port]; | |
1201 | struct skge_port *skge = netdev_priv(dev); | |
1202 | int jumbo = hw->dev[port]->mtu > ETH_DATA_LEN; | |
1203 | int i; | |
1204 | u32 r; | |
1205 | const u8 zero[6] = { 0 }; | |
1206 | ||
1207 | /* Clear MIB counters */ | |
1208 | xm_write16(hw, port, XM_STAT_CMD, | |
1209 | XM_SC_CLR_RXC | XM_SC_CLR_TXC); | |
1210 | /* Clear two times according to Errata #3 */ | |
1211 | xm_write16(hw, port, XM_STAT_CMD, | |
1212 | XM_SC_CLR_RXC | XM_SC_CLR_TXC); | |
baef58b1 | 1213 | |
baef58b1 | 1214 | /* Unreset the XMAC. */ |
6b0c1480 | 1215 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST); |
baef58b1 SH |
1216 | |
1217 | /* | |
1218 | * Perform additional initialization for external PHYs, | |
1219 | * namely for the 1000baseTX cards that use the XMAC's | |
1220 | * GMII mode. | |
1221 | */ | |
45bada65 | 1222 | /* Take external Phy out of reset */ |
89bf5f23 SH |
1223 | r = skge_read32(hw, B2_GP_IO); |
1224 | if (port == 0) | |
1225 | r |= GP_DIR_0|GP_IO_0; | |
1226 | else | |
1227 | r |= GP_DIR_2|GP_IO_2; | |
1228 | ||
1229 | skge_write32(hw, B2_GP_IO, r); | |
1230 | skge_read32(hw, B2_GP_IO); | |
1231 | ||
45bada65 | 1232 | /* Enable GMII interfac */ |
89bf5f23 SH |
1233 | xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD); |
1234 | ||
45bada65 | 1235 | bcom_phy_init(skge, jumbo); |
89bf5f23 | 1236 | |
45bada65 SH |
1237 | /* Set Station Address */ |
1238 | xm_outaddr(hw, port, XM_SA, dev->dev_addr); | |
89bf5f23 | 1239 | |
45bada65 SH |
1240 | /* We don't use match addresses so clear */ |
1241 | for (i = 1; i < 16; i++) | |
1242 | xm_outaddr(hw, port, XM_EXM(i), zero); | |
1243 | ||
1244 | /* configure Rx High Water Mark (XM_RX_HI_WM) */ | |
1245 | xm_write16(hw, port, XM_RX_HI_WM, 1450); | |
1246 | ||
1247 | /* We don't need the FCS appended to the packet. */ | |
1248 | r = XM_RX_LENERR_OK | XM_RX_STRIP_FCS; | |
1249 | if (jumbo) | |
1250 | r |= XM_RX_BIG_PK_OK; | |
89bf5f23 | 1251 | |
45bada65 | 1252 | if (skge->duplex == DUPLEX_HALF) { |
89bf5f23 | 1253 | /* |
45bada65 SH |
1254 | * If in manual half duplex mode the other side might be in |
1255 | * full duplex mode, so ignore if a carrier extension is not seen | |
1256 | * on frames received | |
89bf5f23 | 1257 | */ |
45bada65 | 1258 | r |= XM_RX_DIS_CEXT; |
baef58b1 | 1259 | } |
45bada65 | 1260 | xm_write16(hw, port, XM_RX_CMD, r); |
baef58b1 | 1261 | |
baef58b1 SH |
1262 | |
1263 | /* We want short frames padded to 60 bytes. */ | |
45bada65 SH |
1264 | xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD); |
1265 | ||
1266 | /* | |
1267 | * Bump up the transmit threshold. This helps hold off transmit | |
1268 | * underruns when we're blasting traffic from both ports at once. | |
1269 | */ | |
1270 | xm_write16(hw, port, XM_TX_THR, 512); | |
baef58b1 SH |
1271 | |
1272 | /* | |
1273 | * Enable the reception of all error frames. This is is | |
1274 | * a necessary evil due to the design of the XMAC. The | |
1275 | * XMAC's receive FIFO is only 8K in size, however jumbo | |
1276 | * frames can be up to 9000 bytes in length. When bad | |
1277 | * frame filtering is enabled, the XMAC's RX FIFO operates | |
1278 | * in 'store and forward' mode. For this to work, the | |
1279 | * entire frame has to fit into the FIFO, but that means | |
1280 | * that jumbo frames larger than 8192 bytes will be | |
1281 | * truncated. Disabling all bad frame filtering causes | |
1282 | * the RX FIFO to operate in streaming mode, in which | |
1283 | * case the XMAC will start transfering frames out of the | |
1284 | * RX FIFO as soon as the FIFO threshold is reached. | |
1285 | */ | |
45bada65 | 1286 | xm_write32(hw, port, XM_MODE, XM_DEF_MODE); |
baef58b1 | 1287 | |
baef58b1 SH |
1288 | |
1289 | /* | |
45bada65 SH |
1290 | * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK) |
1291 | * - Enable all bits excepting 'Octets Rx OK Low CntOv' | |
1292 | * and 'Octets Rx OK Hi Cnt Ov'. | |
baef58b1 | 1293 | */ |
45bada65 SH |
1294 | xm_write32(hw, port, XM_RX_EV_MSK, XMR_DEF_MSK); |
1295 | ||
1296 | /* | |
1297 | * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK) | |
1298 | * - Enable all bits excepting 'Octets Tx OK Low CntOv' | |
1299 | * and 'Octets Tx OK Hi Cnt Ov'. | |
1300 | */ | |
1301 | xm_write32(hw, port, XM_TX_EV_MSK, XMT_DEF_MSK); | |
baef58b1 SH |
1302 | |
1303 | /* Configure MAC arbiter */ | |
1304 | skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR); | |
1305 | ||
1306 | /* configure timeout values */ | |
1307 | skge_write8(hw, B3_MA_TOINI_RX1, 72); | |
1308 | skge_write8(hw, B3_MA_TOINI_RX2, 72); | |
1309 | skge_write8(hw, B3_MA_TOINI_TX1, 72); | |
1310 | skge_write8(hw, B3_MA_TOINI_TX2, 72); | |
1311 | ||
1312 | skge_write8(hw, B3_MA_RCINI_RX1, 0); | |
1313 | skge_write8(hw, B3_MA_RCINI_RX2, 0); | |
1314 | skge_write8(hw, B3_MA_RCINI_TX1, 0); | |
1315 | skge_write8(hw, B3_MA_RCINI_TX2, 0); | |
1316 | ||
1317 | /* Configure Rx MAC FIFO */ | |
6b0c1480 SH |
1318 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR); |
1319 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT); | |
1320 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD); | |
baef58b1 SH |
1321 | |
1322 | /* Configure Tx MAC FIFO */ | |
6b0c1480 SH |
1323 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR); |
1324 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF); | |
1325 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD); | |
baef58b1 | 1326 | |
45bada65 | 1327 | if (jumbo) { |
baef58b1 | 1328 | /* Enable frame flushing if jumbo frames used */ |
6b0c1480 | 1329 | skge_write16(hw, SK_REG(port,RX_MFF_CTRL1), MFF_ENA_FLUSH); |
baef58b1 SH |
1330 | } else { |
1331 | /* enable timeout timers if normal frames */ | |
1332 | skge_write16(hw, B3_PA_CTRL, | |
45bada65 | 1333 | (port == 0) ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2); |
baef58b1 | 1334 | } |
baef58b1 SH |
1335 | } |
1336 | ||
1337 | static void genesis_stop(struct skge_port *skge) | |
1338 | { | |
1339 | struct skge_hw *hw = skge->hw; | |
1340 | int port = skge->port; | |
89bf5f23 | 1341 | u32 reg; |
baef58b1 SH |
1342 | |
1343 | /* Clear Tx packet arbiter timeout IRQ */ | |
1344 | skge_write16(hw, B3_PA_CTRL, | |
1345 | port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2); | |
1346 | ||
1347 | /* | |
1348 | * If the transfer stucks at the MAC the STOP command will not | |
1349 | * terminate if we don't flush the XMAC's transmit FIFO ! | |
1350 | */ | |
6b0c1480 SH |
1351 | xm_write32(hw, port, XM_MODE, |
1352 | xm_read32(hw, port, XM_MODE)|XM_MD_FTF); | |
baef58b1 SH |
1353 | |
1354 | ||
1355 | /* Reset the MAC */ | |
6b0c1480 | 1356 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST); |
baef58b1 SH |
1357 | |
1358 | /* For external PHYs there must be special handling */ | |
89bf5f23 SH |
1359 | reg = skge_read32(hw, B2_GP_IO); |
1360 | if (port == 0) { | |
1361 | reg |= GP_DIR_0; | |
1362 | reg &= ~GP_IO_0; | |
1363 | } else { | |
1364 | reg |= GP_DIR_2; | |
1365 | reg &= ~GP_IO_2; | |
baef58b1 | 1366 | } |
89bf5f23 SH |
1367 | skge_write32(hw, B2_GP_IO, reg); |
1368 | skge_read32(hw, B2_GP_IO); | |
baef58b1 | 1369 | |
6b0c1480 SH |
1370 | xm_write16(hw, port, XM_MMU_CMD, |
1371 | xm_read16(hw, port, XM_MMU_CMD) | |
baef58b1 SH |
1372 | & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX)); |
1373 | ||
6b0c1480 | 1374 | xm_read16(hw, port, XM_MMU_CMD); |
baef58b1 SH |
1375 | } |
1376 | ||
1377 | ||
1378 | static void genesis_get_stats(struct skge_port *skge, u64 *data) | |
1379 | { | |
1380 | struct skge_hw *hw = skge->hw; | |
1381 | int port = skge->port; | |
1382 | int i; | |
1383 | unsigned long timeout = jiffies + HZ; | |
1384 | ||
6b0c1480 | 1385 | xm_write16(hw, port, |
baef58b1 SH |
1386 | XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC); |
1387 | ||
1388 | /* wait for update to complete */ | |
6b0c1480 | 1389 | while (xm_read16(hw, port, XM_STAT_CMD) |
baef58b1 SH |
1390 | & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) { |
1391 | if (time_after(jiffies, timeout)) | |
1392 | break; | |
1393 | udelay(10); | |
1394 | } | |
1395 | ||
1396 | /* special case for 64 bit octet counter */ | |
6b0c1480 SH |
1397 | data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32 |
1398 | | xm_read32(hw, port, XM_TXO_OK_LO); | |
1399 | data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32 | |
1400 | | xm_read32(hw, port, XM_RXO_OK_LO); | |
baef58b1 SH |
1401 | |
1402 | for (i = 2; i < ARRAY_SIZE(skge_stats); i++) | |
6b0c1480 | 1403 | data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset); |
baef58b1 SH |
1404 | } |
1405 | ||
1406 | static void genesis_mac_intr(struct skge_hw *hw, int port) | |
1407 | { | |
1408 | struct skge_port *skge = netdev_priv(hw->dev[port]); | |
6b0c1480 | 1409 | u16 status = xm_read16(hw, port, XM_ISRC); |
baef58b1 | 1410 | |
7e676d91 SH |
1411 | if (netif_msg_intr(skge)) |
1412 | printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n", | |
1413 | skge->netdev->name, status); | |
baef58b1 SH |
1414 | |
1415 | if (status & XM_IS_TXF_UR) { | |
6b0c1480 | 1416 | xm_write32(hw, port, XM_MODE, XM_MD_FTF); |
baef58b1 SH |
1417 | ++skge->net_stats.tx_fifo_errors; |
1418 | } | |
1419 | if (status & XM_IS_RXF_OV) { | |
6b0c1480 | 1420 | xm_write32(hw, port, XM_MODE, XM_MD_FRF); |
baef58b1 SH |
1421 | ++skge->net_stats.rx_fifo_errors; |
1422 | } | |
1423 | } | |
1424 | ||
6b0c1480 | 1425 | static void gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) |
baef58b1 SH |
1426 | { |
1427 | int i; | |
1428 | ||
6b0c1480 SH |
1429 | gma_write16(hw, port, GM_SMI_DATA, val); |
1430 | gma_write16(hw, port, GM_SMI_CTRL, | |
baef58b1 SH |
1431 | GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg)); |
1432 | for (i = 0; i < PHY_RETRIES; i++) { | |
1433 | udelay(1); | |
1434 | ||
6b0c1480 | 1435 | if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY)) |
baef58b1 SH |
1436 | break; |
1437 | } | |
1438 | } | |
1439 | ||
6b0c1480 | 1440 | static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg) |
baef58b1 SH |
1441 | { |
1442 | int i; | |
1443 | ||
6b0c1480 | 1444 | gma_write16(hw, port, GM_SMI_CTRL, |
baef58b1 SH |
1445 | GM_SMI_CT_PHY_AD(hw->phy_addr) |
1446 | | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD); | |
1447 | ||
1448 | for (i = 0; i < PHY_RETRIES; i++) { | |
1449 | udelay(1); | |
6b0c1480 | 1450 | if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) |
baef58b1 SH |
1451 | goto ready; |
1452 | } | |
1453 | ||
1454 | printk(KERN_WARNING PFX "%s: phy read timeout\n", | |
1455 | hw->dev[port]->name); | |
1456 | return 0; | |
1457 | ready: | |
6b0c1480 | 1458 | return gma_read16(hw, port, GM_SMI_DATA); |
baef58b1 SH |
1459 | } |
1460 | ||
baef58b1 SH |
1461 | static void genesis_link_up(struct skge_port *skge) |
1462 | { | |
1463 | struct skge_hw *hw = skge->hw; | |
1464 | int port = skge->port; | |
1465 | u16 cmd; | |
1466 | u32 mode, msk; | |
1467 | ||
1468 | pr_debug("genesis_link_up\n"); | |
6b0c1480 | 1469 | cmd = xm_read16(hw, port, XM_MMU_CMD); |
baef58b1 SH |
1470 | |
1471 | /* | |
1472 | * enabling pause frame reception is required for 1000BT | |
1473 | * because the XMAC is not reset if the link is going down | |
1474 | */ | |
1475 | if (skge->flow_control == FLOW_MODE_NONE || | |
1476 | skge->flow_control == FLOW_MODE_LOC_SEND) | |
7e676d91 | 1477 | /* Disable Pause Frame Reception */ |
baef58b1 SH |
1478 | cmd |= XM_MMU_IGN_PF; |
1479 | else | |
1480 | /* Enable Pause Frame Reception */ | |
1481 | cmd &= ~XM_MMU_IGN_PF; | |
1482 | ||
6b0c1480 | 1483 | xm_write16(hw, port, XM_MMU_CMD, cmd); |
baef58b1 | 1484 | |
6b0c1480 | 1485 | mode = xm_read32(hw, port, XM_MODE); |
baef58b1 SH |
1486 | if (skge->flow_control == FLOW_MODE_SYMMETRIC || |
1487 | skge->flow_control == FLOW_MODE_LOC_SEND) { | |
1488 | /* | |
1489 | * Configure Pause Frame Generation | |
1490 | * Use internal and external Pause Frame Generation. | |
1491 | * Sending pause frames is edge triggered. | |
1492 | * Send a Pause frame with the maximum pause time if | |
1493 | * internal oder external FIFO full condition occurs. | |
1494 | * Send a zero pause time frame to re-start transmission. | |
1495 | */ | |
1496 | /* XM_PAUSE_DA = '010000C28001' (default) */ | |
1497 | /* XM_MAC_PTIME = 0xffff (maximum) */ | |
1498 | /* remember this value is defined in big endian (!) */ | |
6b0c1480 | 1499 | xm_write16(hw, port, XM_MAC_PTIME, 0xffff); |
baef58b1 SH |
1500 | |
1501 | mode |= XM_PAUSE_MODE; | |
6b0c1480 | 1502 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE); |
baef58b1 SH |
1503 | } else { |
1504 | /* | |
1505 | * disable pause frame generation is required for 1000BT | |
1506 | * because the XMAC is not reset if the link is going down | |
1507 | */ | |
1508 | /* Disable Pause Mode in Mode Register */ | |
1509 | mode &= ~XM_PAUSE_MODE; | |
1510 | ||
6b0c1480 | 1511 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE); |
baef58b1 SH |
1512 | } |
1513 | ||
6b0c1480 | 1514 | xm_write32(hw, port, XM_MODE, mode); |
baef58b1 SH |
1515 | |
1516 | msk = XM_DEF_MSK; | |
89bf5f23 SH |
1517 | /* disable GP0 interrupt bit for external Phy */ |
1518 | msk |= XM_IS_INP_ASS; | |
baef58b1 | 1519 | |
6b0c1480 SH |
1520 | xm_write16(hw, port, XM_IMSK, msk); |
1521 | xm_read16(hw, port, XM_ISRC); | |
baef58b1 SH |
1522 | |
1523 | /* get MMU Command Reg. */ | |
6b0c1480 | 1524 | cmd = xm_read16(hw, port, XM_MMU_CMD); |
89bf5f23 | 1525 | if (skge->duplex == DUPLEX_FULL) |
baef58b1 SH |
1526 | cmd |= XM_MMU_GMII_FD; |
1527 | ||
89bf5f23 SH |
1528 | /* |
1529 | * Workaround BCOM Errata (#10523) for all BCom Phys | |
1530 | * Enable Power Management after link up | |
1531 | */ | |
1532 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, | |
1533 | xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL) | |
1534 | & ~PHY_B_AC_DIS_PM); | |
1535 | xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); | |
baef58b1 SH |
1536 | |
1537 | /* enable Rx/Tx */ | |
6b0c1480 | 1538 | xm_write16(hw, port, XM_MMU_CMD, |
baef58b1 SH |
1539 | cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX); |
1540 | skge_link_up(skge); | |
1541 | } | |
1542 | ||
1543 | ||
45bada65 | 1544 | static inline void bcom_phy_intr(struct skge_port *skge) |
baef58b1 SH |
1545 | { |
1546 | struct skge_hw *hw = skge->hw; | |
1547 | int port = skge->port; | |
45bada65 SH |
1548 | u16 isrc; |
1549 | ||
1550 | isrc = xm_phy_read(hw, port, PHY_BCOM_INT_STAT); | |
7e676d91 SH |
1551 | if (netif_msg_intr(skge)) |
1552 | printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x\n", | |
1553 | skge->netdev->name, isrc); | |
baef58b1 | 1554 | |
45bada65 SH |
1555 | if (isrc & PHY_B_IS_PSE) |
1556 | printk(KERN_ERR PFX "%s: uncorrectable pair swap error\n", | |
1557 | hw->dev[port]->name); | |
baef58b1 SH |
1558 | |
1559 | /* Workaround BCom Errata: | |
1560 | * enable and disable loopback mode if "NO HCD" occurs. | |
1561 | */ | |
45bada65 | 1562 | if (isrc & PHY_B_IS_NO_HDCL) { |
6b0c1480 SH |
1563 | u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL); |
1564 | xm_phy_write(hw, port, PHY_BCOM_CTRL, | |
baef58b1 | 1565 | ctrl | PHY_CT_LOOP); |
6b0c1480 | 1566 | xm_phy_write(hw, port, PHY_BCOM_CTRL, |
baef58b1 SH |
1567 | ctrl & ~PHY_CT_LOOP); |
1568 | } | |
1569 | ||
45bada65 SH |
1570 | if (isrc & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) |
1571 | bcom_check_link(hw, port); | |
baef58b1 | 1572 | |
baef58b1 SH |
1573 | } |
1574 | ||
1575 | /* Marvell Phy Initailization */ | |
1576 | static void yukon_init(struct skge_hw *hw, int port) | |
1577 | { | |
1578 | struct skge_port *skge = netdev_priv(hw->dev[port]); | |
1579 | u16 ctrl, ct1000, adv; | |
baef58b1 SH |
1580 | |
1581 | pr_debug("yukon_init\n"); | |
1582 | if (skge->autoneg == AUTONEG_ENABLE) { | |
6b0c1480 | 1583 | u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL); |
baef58b1 SH |
1584 | |
1585 | ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK | | |
1586 | PHY_M_EC_MAC_S_MSK); | |
1587 | ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ); | |
1588 | ||
c506a509 | 1589 | ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1); |
baef58b1 | 1590 | |
6b0c1480 | 1591 | gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl); |
baef58b1 SH |
1592 | } |
1593 | ||
6b0c1480 | 1594 | ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); |
baef58b1 SH |
1595 | if (skge->autoneg == AUTONEG_DISABLE) |
1596 | ctrl &= ~PHY_CT_ANE; | |
1597 | ||
1598 | ctrl |= PHY_CT_RESET; | |
6b0c1480 | 1599 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); |
baef58b1 SH |
1600 | |
1601 | ctrl = 0; | |
1602 | ct1000 = 0; | |
b18f2091 | 1603 | adv = PHY_AN_CSMA; |
baef58b1 SH |
1604 | |
1605 | if (skge->autoneg == AUTONEG_ENABLE) { | |
5e1705dd | 1606 | if (hw->copper) { |
baef58b1 SH |
1607 | if (skge->advertising & ADVERTISED_1000baseT_Full) |
1608 | ct1000 |= PHY_M_1000C_AFD; | |
1609 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1610 | ct1000 |= PHY_M_1000C_AHD; | |
1611 | if (skge->advertising & ADVERTISED_100baseT_Full) | |
1612 | adv |= PHY_M_AN_100_FD; | |
1613 | if (skge->advertising & ADVERTISED_100baseT_Half) | |
1614 | adv |= PHY_M_AN_100_HD; | |
1615 | if (skge->advertising & ADVERTISED_10baseT_Full) | |
1616 | adv |= PHY_M_AN_10_FD; | |
1617 | if (skge->advertising & ADVERTISED_10baseT_Half) | |
1618 | adv |= PHY_M_AN_10_HD; | |
45bada65 | 1619 | } else /* special defines for FIBER (88E1011S only) */ |
baef58b1 SH |
1620 | adv |= PHY_M_AN_1000X_AHD | PHY_M_AN_1000X_AFD; |
1621 | ||
45bada65 SH |
1622 | /* Set Flow-control capabilities */ |
1623 | adv |= phy_pause_map[skge->flow_control]; | |
1624 | ||
baef58b1 SH |
1625 | /* Restart Auto-negotiation */ |
1626 | ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG; | |
1627 | } else { | |
1628 | /* forced speed/duplex settings */ | |
1629 | ct1000 = PHY_M_1000C_MSE; | |
1630 | ||
1631 | if (skge->duplex == DUPLEX_FULL) | |
1632 | ctrl |= PHY_CT_DUP_MD; | |
1633 | ||
1634 | switch (skge->speed) { | |
1635 | case SPEED_1000: | |
1636 | ctrl |= PHY_CT_SP1000; | |
1637 | break; | |
1638 | case SPEED_100: | |
1639 | ctrl |= PHY_CT_SP100; | |
1640 | break; | |
1641 | } | |
1642 | ||
1643 | ctrl |= PHY_CT_RESET; | |
1644 | } | |
1645 | ||
c506a509 | 1646 | gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000); |
baef58b1 | 1647 | |
6b0c1480 SH |
1648 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv); |
1649 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
baef58b1 | 1650 | |
baef58b1 SH |
1651 | /* Enable phy interrupt on autonegotiation complete (or link up) */ |
1652 | if (skge->autoneg == AUTONEG_ENABLE) | |
4cde06ed | 1653 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_MSK); |
baef58b1 | 1654 | else |
4cde06ed | 1655 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK); |
baef58b1 SH |
1656 | } |
1657 | ||
1658 | static void yukon_reset(struct skge_hw *hw, int port) | |
1659 | { | |
6b0c1480 SH |
1660 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */ |
1661 | gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */ | |
1662 | gma_write16(hw, port, GM_MC_ADDR_H2, 0); | |
1663 | gma_write16(hw, port, GM_MC_ADDR_H3, 0); | |
1664 | gma_write16(hw, port, GM_MC_ADDR_H4, 0); | |
baef58b1 | 1665 | |
6b0c1480 SH |
1666 | gma_write16(hw, port, GM_RX_CTRL, |
1667 | gma_read16(hw, port, GM_RX_CTRL) | |
baef58b1 SH |
1668 | | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); |
1669 | } | |
1670 | ||
1671 | static void yukon_mac_init(struct skge_hw *hw, int port) | |
1672 | { | |
1673 | struct skge_port *skge = netdev_priv(hw->dev[port]); | |
1674 | int i; | |
1675 | u32 reg; | |
1676 | const u8 *addr = hw->dev[port]->dev_addr; | |
1677 | ||
1678 | /* WA code for COMA mode -- set PHY reset */ | |
1679 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
38231713 | 1680 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) |
baef58b1 SH |
1681 | skge_write32(hw, B2_GP_IO, |
1682 | (skge_read32(hw, B2_GP_IO) | GP_DIR_9 | GP_IO_9)); | |
1683 | ||
1684 | /* hard reset */ | |
6b0c1480 SH |
1685 | skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); |
1686 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); | |
baef58b1 SH |
1687 | |
1688 | /* WA code for COMA mode -- clear PHY reset */ | |
1689 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
38231713 | 1690 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) |
baef58b1 SH |
1691 | skge_write32(hw, B2_GP_IO, |
1692 | (skge_read32(hw, B2_GP_IO) | GP_DIR_9) | |
1693 | & ~GP_IO_9); | |
1694 | ||
1695 | /* Set hardware config mode */ | |
1696 | reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP | | |
1697 | GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE; | |
5e1705dd | 1698 | reg |= hw->copper ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB; |
baef58b1 SH |
1699 | |
1700 | /* Clear GMC reset */ | |
6b0c1480 SH |
1701 | skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET); |
1702 | skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR); | |
1703 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR); | |
baef58b1 SH |
1704 | if (skge->autoneg == AUTONEG_DISABLE) { |
1705 | reg = GM_GPCR_AU_ALL_DIS; | |
6b0c1480 SH |
1706 | gma_write16(hw, port, GM_GP_CTRL, |
1707 | gma_read16(hw, port, GM_GP_CTRL) | reg); | |
baef58b1 SH |
1708 | |
1709 | switch (skge->speed) { | |
1710 | case SPEED_1000: | |
1711 | reg |= GM_GPCR_SPEED_1000; | |
1712 | /* fallthru */ | |
1713 | case SPEED_100: | |
1714 | reg |= GM_GPCR_SPEED_100; | |
1715 | } | |
1716 | ||
1717 | if (skge->duplex == DUPLEX_FULL) | |
1718 | reg |= GM_GPCR_DUP_FULL; | |
1719 | } else | |
1720 | reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL; | |
1721 | switch (skge->flow_control) { | |
1722 | case FLOW_MODE_NONE: | |
6b0c1480 | 1723 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); |
baef58b1 SH |
1724 | reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; |
1725 | break; | |
1726 | case FLOW_MODE_LOC_SEND: | |
1727 | /* disable Rx flow-control */ | |
1728 | reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; | |
1729 | } | |
1730 | ||
6b0c1480 | 1731 | gma_write16(hw, port, GM_GP_CTRL, reg); |
baef58b1 SH |
1732 | skge_read16(hw, GMAC_IRQ_SRC); |
1733 | ||
baef58b1 | 1734 | yukon_init(hw, port); |
baef58b1 SH |
1735 | |
1736 | /* MIB clear */ | |
6b0c1480 SH |
1737 | reg = gma_read16(hw, port, GM_PHY_ADDR); |
1738 | gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR); | |
baef58b1 SH |
1739 | |
1740 | for (i = 0; i < GM_MIB_CNT_SIZE; i++) | |
6b0c1480 SH |
1741 | gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i); |
1742 | gma_write16(hw, port, GM_PHY_ADDR, reg); | |
baef58b1 SH |
1743 | |
1744 | /* transmit control */ | |
6b0c1480 | 1745 | gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF)); |
baef58b1 SH |
1746 | |
1747 | /* receive control reg: unicast + multicast + no FCS */ | |
6b0c1480 | 1748 | gma_write16(hw, port, GM_RX_CTRL, |
baef58b1 SH |
1749 | GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA); |
1750 | ||
1751 | /* transmit flow control */ | |
6b0c1480 | 1752 | gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff); |
baef58b1 SH |
1753 | |
1754 | /* transmit parameter */ | |
6b0c1480 | 1755 | gma_write16(hw, port, GM_TX_PARAM, |
baef58b1 SH |
1756 | TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) | |
1757 | TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) | | |
1758 | TX_IPG_JAM_DATA(TX_IPG_JAM_DEF)); | |
1759 | ||
1760 | /* serial mode register */ | |
1761 | reg = GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); | |
1762 | if (hw->dev[port]->mtu > 1500) | |
1763 | reg |= GM_SMOD_JUMBO_ENA; | |
1764 | ||
6b0c1480 | 1765 | gma_write16(hw, port, GM_SERIAL_MODE, reg); |
baef58b1 SH |
1766 | |
1767 | /* physical address: used for pause frames */ | |
6b0c1480 | 1768 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr); |
baef58b1 | 1769 | /* virtual address for data */ |
6b0c1480 | 1770 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr); |
baef58b1 SH |
1771 | |
1772 | /* enable interrupt mask for counter overflows */ | |
6b0c1480 SH |
1773 | gma_write16(hw, port, GM_TX_IRQ_MSK, 0); |
1774 | gma_write16(hw, port, GM_RX_IRQ_MSK, 0); | |
1775 | gma_write16(hw, port, GM_TR_IRQ_MSK, 0); | |
baef58b1 SH |
1776 | |
1777 | /* Initialize Mac Fifo */ | |
1778 | ||
1779 | /* Configure Rx MAC FIFO */ | |
6b0c1480 | 1780 | skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK); |
baef58b1 SH |
1781 | reg = GMF_OPER_ON | GMF_RX_F_FL_ON; |
1782 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
38231713 | 1783 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) |
baef58b1 | 1784 | reg &= ~GMF_RX_F_FL_ON; |
6b0c1480 SH |
1785 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR); |
1786 | skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg); | |
c5923081 SH |
1787 | /* |
1788 | * because Pause Packet Truncation in GMAC is not working | |
1789 | * we have to increase the Flush Threshold to 64 bytes | |
1790 | * in order to flush pause packets in Rx FIFO on Yukon-1 | |
1791 | */ | |
1792 | skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1); | |
baef58b1 SH |
1793 | |
1794 | /* Configure Tx MAC FIFO */ | |
6b0c1480 SH |
1795 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR); |
1796 | skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON); | |
baef58b1 SH |
1797 | } |
1798 | ||
1799 | static void yukon_stop(struct skge_port *skge) | |
1800 | { | |
1801 | struct skge_hw *hw = skge->hw; | |
1802 | int port = skge->port; | |
1803 | ||
1804 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
38231713 | 1805 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) { |
baef58b1 SH |
1806 | skge_write32(hw, B2_GP_IO, |
1807 | skge_read32(hw, B2_GP_IO) | GP_DIR_9 | GP_IO_9); | |
1808 | } | |
1809 | ||
6b0c1480 SH |
1810 | gma_write16(hw, port, GM_GP_CTRL, |
1811 | gma_read16(hw, port, GM_GP_CTRL) | |
0eedf4ac | 1812 | & ~(GM_GPCR_TX_ENA|GM_GPCR_RX_ENA)); |
6b0c1480 | 1813 | gma_read16(hw, port, GM_GP_CTRL); |
baef58b1 SH |
1814 | |
1815 | /* set GPHY Control reset */ | |
d8a09943 SH |
1816 | skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); |
1817 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); | |
baef58b1 SH |
1818 | } |
1819 | ||
1820 | static void yukon_get_stats(struct skge_port *skge, u64 *data) | |
1821 | { | |
1822 | struct skge_hw *hw = skge->hw; | |
1823 | int port = skge->port; | |
1824 | int i; | |
1825 | ||
6b0c1480 SH |
1826 | data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32 |
1827 | | gma_read32(hw, port, GM_TXO_OK_LO); | |
1828 | data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32 | |
1829 | | gma_read32(hw, port, GM_RXO_OK_LO); | |
baef58b1 SH |
1830 | |
1831 | for (i = 2; i < ARRAY_SIZE(skge_stats); i++) | |
6b0c1480 | 1832 | data[i] = gma_read32(hw, port, |
baef58b1 SH |
1833 | skge_stats[i].gma_offset); |
1834 | } | |
1835 | ||
1836 | static void yukon_mac_intr(struct skge_hw *hw, int port) | |
1837 | { | |
7e676d91 SH |
1838 | struct net_device *dev = hw->dev[port]; |
1839 | struct skge_port *skge = netdev_priv(dev); | |
6b0c1480 | 1840 | u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC)); |
baef58b1 | 1841 | |
7e676d91 SH |
1842 | if (netif_msg_intr(skge)) |
1843 | printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n", | |
1844 | dev->name, status); | |
1845 | ||
baef58b1 SH |
1846 | if (status & GM_IS_RX_FF_OR) { |
1847 | ++skge->net_stats.rx_fifo_errors; | |
d8a09943 | 1848 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO); |
baef58b1 | 1849 | } |
d8a09943 | 1850 | |
baef58b1 SH |
1851 | if (status & GM_IS_TX_FF_UR) { |
1852 | ++skge->net_stats.tx_fifo_errors; | |
d8a09943 | 1853 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU); |
baef58b1 SH |
1854 | } |
1855 | ||
1856 | } | |
1857 | ||
1858 | static u16 yukon_speed(const struct skge_hw *hw, u16 aux) | |
1859 | { | |
95566065 | 1860 | switch (aux & PHY_M_PS_SPEED_MSK) { |
baef58b1 SH |
1861 | case PHY_M_PS_SPEED_1000: |
1862 | return SPEED_1000; | |
1863 | case PHY_M_PS_SPEED_100: | |
1864 | return SPEED_100; | |
1865 | default: | |
1866 | return SPEED_10; | |
1867 | } | |
1868 | } | |
1869 | ||
1870 | static void yukon_link_up(struct skge_port *skge) | |
1871 | { | |
1872 | struct skge_hw *hw = skge->hw; | |
1873 | int port = skge->port; | |
1874 | u16 reg; | |
1875 | ||
1876 | pr_debug("yukon_link_up\n"); | |
1877 | ||
1878 | /* Enable Transmit FIFO Underrun */ | |
1879 | skge_write8(hw, GMAC_IRQ_MSK, GMAC_DEF_MSK); | |
1880 | ||
6b0c1480 | 1881 | reg = gma_read16(hw, port, GM_GP_CTRL); |
baef58b1 SH |
1882 | if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE) |
1883 | reg |= GM_GPCR_DUP_FULL; | |
1884 | ||
1885 | /* enable Rx/Tx */ | |
1886 | reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; | |
6b0c1480 | 1887 | gma_write16(hw, port, GM_GP_CTRL, reg); |
baef58b1 | 1888 | |
4cde06ed | 1889 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK); |
baef58b1 SH |
1890 | skge_link_up(skge); |
1891 | } | |
1892 | ||
1893 | static void yukon_link_down(struct skge_port *skge) | |
1894 | { | |
1895 | struct skge_hw *hw = skge->hw; | |
1896 | int port = skge->port; | |
d8a09943 | 1897 | u16 ctrl; |
baef58b1 SH |
1898 | |
1899 | pr_debug("yukon_link_down\n"); | |
6b0c1480 | 1900 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0); |
d8a09943 SH |
1901 | |
1902 | ctrl = gma_read16(hw, port, GM_GP_CTRL); | |
1903 | ctrl &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA); | |
1904 | gma_write16(hw, port, GM_GP_CTRL, ctrl); | |
baef58b1 | 1905 | |
c506a509 | 1906 | if (skge->flow_control == FLOW_MODE_REM_SEND) { |
baef58b1 | 1907 | /* restore Asymmetric Pause bit */ |
6b0c1480 SH |
1908 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, |
1909 | gm_phy_read(hw, port, | |
baef58b1 SH |
1910 | PHY_MARV_AUNE_ADV) |
1911 | | PHY_M_AN_ASP); | |
1912 | ||
1913 | } | |
1914 | ||
1915 | yukon_reset(hw, port); | |
1916 | skge_link_down(skge); | |
1917 | ||
1918 | yukon_init(hw, port); | |
1919 | } | |
1920 | ||
1921 | static void yukon_phy_intr(struct skge_port *skge) | |
1922 | { | |
1923 | struct skge_hw *hw = skge->hw; | |
1924 | int port = skge->port; | |
1925 | const char *reason = NULL; | |
1926 | u16 istatus, phystat; | |
1927 | ||
6b0c1480 SH |
1928 | istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT); |
1929 | phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT); | |
7e676d91 SH |
1930 | |
1931 | if (netif_msg_intr(skge)) | |
1932 | printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x 0x%x\n", | |
1933 | skge->netdev->name, istatus, phystat); | |
baef58b1 SH |
1934 | |
1935 | if (istatus & PHY_M_IS_AN_COMPL) { | |
6b0c1480 | 1936 | if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP) |
baef58b1 SH |
1937 | & PHY_M_AN_RF) { |
1938 | reason = "remote fault"; | |
1939 | goto failed; | |
1940 | } | |
1941 | ||
c506a509 | 1942 | if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) { |
baef58b1 SH |
1943 | reason = "master/slave fault"; |
1944 | goto failed; | |
1945 | } | |
1946 | ||
1947 | if (!(phystat & PHY_M_PS_SPDUP_RES)) { | |
1948 | reason = "speed/duplex"; | |
1949 | goto failed; | |
1950 | } | |
1951 | ||
1952 | skge->duplex = (phystat & PHY_M_PS_FULL_DUP) | |
1953 | ? DUPLEX_FULL : DUPLEX_HALF; | |
1954 | skge->speed = yukon_speed(hw, phystat); | |
1955 | ||
baef58b1 SH |
1956 | /* We are using IEEE 802.3z/D5.0 Table 37-4 */ |
1957 | switch (phystat & PHY_M_PS_PAUSE_MSK) { | |
1958 | case PHY_M_PS_PAUSE_MSK: | |
1959 | skge->flow_control = FLOW_MODE_SYMMETRIC; | |
1960 | break; | |
1961 | case PHY_M_PS_RX_P_EN: | |
1962 | skge->flow_control = FLOW_MODE_REM_SEND; | |
1963 | break; | |
1964 | case PHY_M_PS_TX_P_EN: | |
1965 | skge->flow_control = FLOW_MODE_LOC_SEND; | |
1966 | break; | |
1967 | default: | |
1968 | skge->flow_control = FLOW_MODE_NONE; | |
1969 | } | |
1970 | ||
1971 | if (skge->flow_control == FLOW_MODE_NONE || | |
1972 | (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF)) | |
6b0c1480 | 1973 | skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); |
baef58b1 | 1974 | else |
6b0c1480 | 1975 | skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); |
baef58b1 SH |
1976 | yukon_link_up(skge); |
1977 | return; | |
1978 | } | |
1979 | ||
1980 | if (istatus & PHY_M_IS_LSP_CHANGE) | |
1981 | skge->speed = yukon_speed(hw, phystat); | |
1982 | ||
1983 | if (istatus & PHY_M_IS_DUP_CHANGE) | |
1984 | skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; | |
1985 | if (istatus & PHY_M_IS_LST_CHANGE) { | |
1986 | if (phystat & PHY_M_PS_LINK_UP) | |
1987 | yukon_link_up(skge); | |
1988 | else | |
1989 | yukon_link_down(skge); | |
1990 | } | |
1991 | return; | |
1992 | failed: | |
1993 | printk(KERN_ERR PFX "%s: autonegotiation failed (%s)\n", | |
1994 | skge->netdev->name, reason); | |
1995 | ||
1996 | /* XXX restart autonegotiation? */ | |
1997 | } | |
1998 | ||
1999 | static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len) | |
2000 | { | |
2001 | u32 end; | |
2002 | ||
2003 | start /= 8; | |
2004 | len /= 8; | |
2005 | end = start + len - 1; | |
2006 | ||
2007 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR); | |
2008 | skge_write32(hw, RB_ADDR(q, RB_START), start); | |
2009 | skge_write32(hw, RB_ADDR(q, RB_WP), start); | |
2010 | skge_write32(hw, RB_ADDR(q, RB_RP), start); | |
2011 | skge_write32(hw, RB_ADDR(q, RB_END), end); | |
2012 | ||
2013 | if (q == Q_R1 || q == Q_R2) { | |
2014 | /* Set thresholds on receive queue's */ | |
2015 | skge_write32(hw, RB_ADDR(q, RB_RX_UTPP), | |
2016 | start + (2*len)/3); | |
2017 | skge_write32(hw, RB_ADDR(q, RB_RX_LTPP), | |
2018 | start + (len/3)); | |
2019 | } else { | |
2020 | /* Enable store & forward on Tx queue's because | |
2021 | * Tx FIFO is only 4K on Genesis and 1K on Yukon | |
2022 | */ | |
2023 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD); | |
2024 | } | |
2025 | ||
2026 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD); | |
2027 | } | |
2028 | ||
2029 | /* Setup Bus Memory Interface */ | |
2030 | static void skge_qset(struct skge_port *skge, u16 q, | |
2031 | const struct skge_element *e) | |
2032 | { | |
2033 | struct skge_hw *hw = skge->hw; | |
2034 | u32 watermark = 0x600; | |
2035 | u64 base = skge->dma + (e->desc - skge->mem); | |
2036 | ||
2037 | /* optimization to reduce window on 32bit/33mhz */ | |
2038 | if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0) | |
2039 | watermark /= 2; | |
2040 | ||
2041 | skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET); | |
2042 | skge_write32(hw, Q_ADDR(q, Q_F), watermark); | |
2043 | skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32)); | |
2044 | skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base); | |
2045 | } | |
2046 | ||
2047 | static int skge_up(struct net_device *dev) | |
2048 | { | |
2049 | struct skge_port *skge = netdev_priv(dev); | |
2050 | struct skge_hw *hw = skge->hw; | |
2051 | int port = skge->port; | |
2052 | u32 chunk, ram_addr; | |
2053 | size_t rx_size, tx_size; | |
2054 | int err; | |
2055 | ||
2056 | if (netif_msg_ifup(skge)) | |
2057 | printk(KERN_INFO PFX "%s: enabling interface\n", dev->name); | |
2058 | ||
19a33d4e SH |
2059 | if (dev->mtu > RX_BUF_SIZE) |
2060 | skge->rx_buf_size = dev->mtu + ETH_HLEN + NET_IP_ALIGN; | |
2061 | else | |
2062 | skge->rx_buf_size = RX_BUF_SIZE; | |
2063 | ||
2064 | ||
baef58b1 SH |
2065 | rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc); |
2066 | tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc); | |
2067 | skge->mem_size = tx_size + rx_size; | |
2068 | skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma); | |
2069 | if (!skge->mem) | |
2070 | return -ENOMEM; | |
2071 | ||
2072 | memset(skge->mem, 0, skge->mem_size); | |
2073 | ||
2074 | if ((err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma))) | |
2075 | goto free_pci_mem; | |
2076 | ||
19a33d4e SH |
2077 | err = skge_rx_fill(skge); |
2078 | if (err) | |
baef58b1 SH |
2079 | goto free_rx_ring; |
2080 | ||
2081 | if ((err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size, | |
2082 | skge->dma + rx_size))) | |
2083 | goto free_rx_ring; | |
2084 | ||
2085 | skge->tx_avail = skge->tx_ring.count - 1; | |
2086 | ||
7e676d91 SH |
2087 | /* Enable IRQ from port */ |
2088 | hw->intr_mask |= portirqmask[port]; | |
2089 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
2090 | ||
baef58b1 | 2091 | /* Initialze MAC */ |
4ff6ac05 | 2092 | spin_lock_bh(&hw->phy_lock); |
baef58b1 SH |
2093 | if (hw->chip_id == CHIP_ID_GENESIS) |
2094 | genesis_mac_init(hw, port); | |
2095 | else | |
2096 | yukon_mac_init(hw, port); | |
4ff6ac05 | 2097 | spin_unlock_bh(&hw->phy_lock); |
baef58b1 SH |
2098 | |
2099 | /* Configure RAMbuffers */ | |
981d0377 | 2100 | chunk = hw->ram_size / ((hw->ports + 1)*2); |
baef58b1 SH |
2101 | ram_addr = hw->ram_offset + 2 * chunk * port; |
2102 | ||
2103 | skge_ramset(hw, rxqaddr[port], ram_addr, chunk); | |
2104 | skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean); | |
2105 | ||
2106 | BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean); | |
2107 | skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk); | |
2108 | skge_qset(skge, txqaddr[port], skge->tx_ring.to_use); | |
2109 | ||
2110 | /* Start receiver BMU */ | |
2111 | wmb(); | |
2112 | skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F); | |
6abebb53 | 2113 | skge_led(skge, LED_MODE_ON); |
baef58b1 SH |
2114 | |
2115 | pr_debug("skge_up completed\n"); | |
2116 | return 0; | |
2117 | ||
2118 | free_rx_ring: | |
2119 | skge_rx_clean(skge); | |
2120 | kfree(skge->rx_ring.start); | |
2121 | free_pci_mem: | |
2122 | pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma); | |
2123 | ||
2124 | return err; | |
2125 | } | |
2126 | ||
2127 | static int skge_down(struct net_device *dev) | |
2128 | { | |
2129 | struct skge_port *skge = netdev_priv(dev); | |
2130 | struct skge_hw *hw = skge->hw; | |
2131 | int port = skge->port; | |
2132 | ||
2133 | if (netif_msg_ifdown(skge)) | |
2134 | printk(KERN_INFO PFX "%s: disabling interface\n", dev->name); | |
2135 | ||
2136 | netif_stop_queue(dev); | |
2137 | ||
baef58b1 SH |
2138 | /* Stop transmitter */ |
2139 | skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP); | |
2140 | skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), | |
2141 | RB_RST_SET|RB_DIS_OP_MD); | |
2142 | ||
2143 | if (hw->chip_id == CHIP_ID_GENESIS) | |
2144 | genesis_stop(skge); | |
2145 | else | |
2146 | yukon_stop(skge); | |
2147 | ||
2148 | /* Disable Force Sync bit and Enable Alloc bit */ | |
6b0c1480 | 2149 | skge_write8(hw, SK_REG(port, TXA_CTRL), |
baef58b1 SH |
2150 | TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC); |
2151 | ||
2152 | /* Stop Interval Timer and Limit Counter of Tx Arbiter */ | |
6b0c1480 SH |
2153 | skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L); |
2154 | skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L); | |
baef58b1 SH |
2155 | |
2156 | /* Reset PCI FIFO */ | |
2157 | skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET); | |
2158 | skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET); | |
2159 | ||
2160 | /* Reset the RAM Buffer async Tx queue */ | |
2161 | skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET); | |
2162 | /* stop receiver */ | |
2163 | skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP); | |
2164 | skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL), | |
2165 | RB_RST_SET|RB_DIS_OP_MD); | |
2166 | skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET); | |
2167 | ||
2168 | if (hw->chip_id == CHIP_ID_GENESIS) { | |
6b0c1480 SH |
2169 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET); |
2170 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET); | |
baef58b1 | 2171 | } else { |
6b0c1480 SH |
2172 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); |
2173 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET); | |
baef58b1 SH |
2174 | } |
2175 | ||
6abebb53 | 2176 | skge_led(skge, LED_MODE_OFF); |
baef58b1 SH |
2177 | |
2178 | skge_tx_clean(skge); | |
2179 | skge_rx_clean(skge); | |
2180 | ||
2181 | kfree(skge->rx_ring.start); | |
2182 | kfree(skge->tx_ring.start); | |
2183 | pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma); | |
2184 | return 0; | |
2185 | } | |
2186 | ||
2187 | static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev) | |
2188 | { | |
2189 | struct skge_port *skge = netdev_priv(dev); | |
2190 | struct skge_hw *hw = skge->hw; | |
2191 | struct skge_ring *ring = &skge->tx_ring; | |
2192 | struct skge_element *e; | |
2193 | struct skge_tx_desc *td; | |
2194 | int i; | |
2195 | u32 control, len; | |
2196 | u64 map; | |
2197 | unsigned long flags; | |
2198 | ||
2199 | skb = skb_padto(skb, ETH_ZLEN); | |
2200 | if (!skb) | |
2201 | return NETDEV_TX_OK; | |
2202 | ||
2203 | local_irq_save(flags); | |
2204 | if (!spin_trylock(&skge->tx_lock)) { | |
95566065 SH |
2205 | /* Collision - tell upper layer to requeue */ |
2206 | local_irq_restore(flags); | |
2207 | return NETDEV_TX_LOCKED; | |
2208 | } | |
baef58b1 SH |
2209 | |
2210 | if (unlikely(skge->tx_avail < skb_shinfo(skb)->nr_frags +1)) { | |
2211 | netif_stop_queue(dev); | |
2212 | spin_unlock_irqrestore(&skge->tx_lock, flags); | |
2213 | ||
2214 | printk(KERN_WARNING PFX "%s: ring full when queue awake!\n", | |
2215 | dev->name); | |
2216 | return NETDEV_TX_BUSY; | |
2217 | } | |
2218 | ||
2219 | e = ring->to_use; | |
2220 | td = e->desc; | |
2221 | e->skb = skb; | |
2222 | len = skb_headlen(skb); | |
2223 | map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
2224 | pci_unmap_addr_set(e, mapaddr, map); | |
2225 | pci_unmap_len_set(e, maplen, len); | |
2226 | ||
2227 | td->dma_lo = map; | |
2228 | td->dma_hi = map >> 32; | |
2229 | ||
2230 | if (skb->ip_summed == CHECKSUM_HW) { | |
2231 | const struct iphdr *ip | |
2232 | = (const struct iphdr *) (skb->data + ETH_HLEN); | |
2233 | int offset = skb->h.raw - skb->data; | |
2234 | ||
2235 | /* This seems backwards, but it is what the sk98lin | |
2236 | * does. Looks like hardware is wrong? | |
2237 | */ | |
2238 | if (ip->protocol == IPPROTO_UDP | |
981d0377 | 2239 | && hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON) |
baef58b1 SH |
2240 | control = BMU_TCP_CHECK; |
2241 | else | |
2242 | control = BMU_UDP_CHECK; | |
2243 | ||
2244 | td->csum_offs = 0; | |
2245 | td->csum_start = offset; | |
2246 | td->csum_write = offset + skb->csum; | |
2247 | } else | |
2248 | control = BMU_CHECK; | |
2249 | ||
2250 | if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */ | |
2251 | control |= BMU_EOF| BMU_IRQ_EOF; | |
2252 | else { | |
2253 | struct skge_tx_desc *tf = td; | |
2254 | ||
2255 | control |= BMU_STFWD; | |
2256 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
2257 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
2258 | ||
2259 | map = pci_map_page(hw->pdev, frag->page, frag->page_offset, | |
2260 | frag->size, PCI_DMA_TODEVICE); | |
2261 | ||
2262 | e = e->next; | |
2263 | e->skb = NULL; | |
2264 | tf = e->desc; | |
2265 | tf->dma_lo = map; | |
2266 | tf->dma_hi = (u64) map >> 32; | |
2267 | pci_unmap_addr_set(e, mapaddr, map); | |
2268 | pci_unmap_len_set(e, maplen, frag->size); | |
2269 | ||
2270 | tf->control = BMU_OWN | BMU_SW | control | frag->size; | |
2271 | } | |
2272 | tf->control |= BMU_EOF | BMU_IRQ_EOF; | |
2273 | } | |
2274 | /* Make sure all the descriptors written */ | |
2275 | wmb(); | |
2276 | td->control = BMU_OWN | BMU_SW | BMU_STF | control | len; | |
2277 | wmb(); | |
2278 | ||
2279 | skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START); | |
2280 | ||
2281 | if (netif_msg_tx_queued(skge)) | |
0b2d7fea | 2282 | printk(KERN_DEBUG "%s: tx queued, slot %td, len %d\n", |
baef58b1 SH |
2283 | dev->name, e - ring->start, skb->len); |
2284 | ||
2285 | ring->to_use = e->next; | |
2286 | skge->tx_avail -= skb_shinfo(skb)->nr_frags + 1; | |
2287 | if (skge->tx_avail <= MAX_SKB_FRAGS + 1) { | |
2288 | pr_debug("%s: transmit queue full\n", dev->name); | |
2289 | netif_stop_queue(dev); | |
2290 | } | |
2291 | ||
2292 | dev->trans_start = jiffies; | |
2293 | spin_unlock_irqrestore(&skge->tx_lock, flags); | |
2294 | ||
2295 | return NETDEV_TX_OK; | |
2296 | } | |
2297 | ||
2298 | static inline void skge_tx_free(struct skge_hw *hw, struct skge_element *e) | |
2299 | { | |
19a33d4e | 2300 | /* This ring element can be skb or fragment */ |
baef58b1 SH |
2301 | if (e->skb) { |
2302 | pci_unmap_single(hw->pdev, | |
2303 | pci_unmap_addr(e, mapaddr), | |
2304 | pci_unmap_len(e, maplen), | |
2305 | PCI_DMA_TODEVICE); | |
2306 | dev_kfree_skb_any(e->skb); | |
2307 | e->skb = NULL; | |
2308 | } else { | |
2309 | pci_unmap_page(hw->pdev, | |
2310 | pci_unmap_addr(e, mapaddr), | |
2311 | pci_unmap_len(e, maplen), | |
2312 | PCI_DMA_TODEVICE); | |
2313 | } | |
2314 | } | |
2315 | ||
2316 | static void skge_tx_clean(struct skge_port *skge) | |
2317 | { | |
2318 | struct skge_ring *ring = &skge->tx_ring; | |
2319 | struct skge_element *e; | |
2320 | unsigned long flags; | |
2321 | ||
2322 | spin_lock_irqsave(&skge->tx_lock, flags); | |
2323 | for (e = ring->to_clean; e != ring->to_use; e = e->next) { | |
2324 | ++skge->tx_avail; | |
2325 | skge_tx_free(skge->hw, e); | |
2326 | } | |
2327 | ring->to_clean = e; | |
2328 | spin_unlock_irqrestore(&skge->tx_lock, flags); | |
2329 | } | |
2330 | ||
2331 | static void skge_tx_timeout(struct net_device *dev) | |
2332 | { | |
2333 | struct skge_port *skge = netdev_priv(dev); | |
2334 | ||
2335 | if (netif_msg_timer(skge)) | |
2336 | printk(KERN_DEBUG PFX "%s: tx timeout\n", dev->name); | |
2337 | ||
2338 | skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP); | |
2339 | skge_tx_clean(skge); | |
2340 | } | |
2341 | ||
2342 | static int skge_change_mtu(struct net_device *dev, int new_mtu) | |
2343 | { | |
2344 | int err = 0; | |
19a33d4e | 2345 | int running = netif_running(dev); |
baef58b1 | 2346 | |
95566065 | 2347 | if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) |
baef58b1 SH |
2348 | return -EINVAL; |
2349 | ||
baef58b1 | 2350 | |
19a33d4e | 2351 | if (running) |
baef58b1 | 2352 | skge_down(dev); |
19a33d4e SH |
2353 | dev->mtu = new_mtu; |
2354 | if (running) | |
baef58b1 | 2355 | skge_up(dev); |
baef58b1 SH |
2356 | |
2357 | return err; | |
2358 | } | |
2359 | ||
2360 | static void genesis_set_multicast(struct net_device *dev) | |
2361 | { | |
2362 | struct skge_port *skge = netdev_priv(dev); | |
2363 | struct skge_hw *hw = skge->hw; | |
2364 | int port = skge->port; | |
2365 | int i, count = dev->mc_count; | |
2366 | struct dev_mc_list *list = dev->mc_list; | |
2367 | u32 mode; | |
2368 | u8 filter[8]; | |
2369 | ||
45bada65 SH |
2370 | pr_debug("genesis_set_multicast flags=%x count=%d\n", dev->flags, dev->mc_count); |
2371 | ||
6b0c1480 | 2372 | mode = xm_read32(hw, port, XM_MODE); |
baef58b1 SH |
2373 | mode |= XM_MD_ENA_HASH; |
2374 | if (dev->flags & IFF_PROMISC) | |
2375 | mode |= XM_MD_ENA_PROM; | |
2376 | else | |
2377 | mode &= ~XM_MD_ENA_PROM; | |
2378 | ||
2379 | if (dev->flags & IFF_ALLMULTI) | |
2380 | memset(filter, 0xff, sizeof(filter)); | |
2381 | else { | |
2382 | memset(filter, 0, sizeof(filter)); | |
95566065 | 2383 | for (i = 0; list && i < count; i++, list = list->next) { |
45bada65 SH |
2384 | u32 crc, bit; |
2385 | crc = ether_crc_le(ETH_ALEN, list->dmi_addr); | |
2386 | bit = ~crc & 0x3f; | |
baef58b1 SH |
2387 | filter[bit/8] |= 1 << (bit%8); |
2388 | } | |
2389 | } | |
2390 | ||
6b0c1480 | 2391 | xm_write32(hw, port, XM_MODE, mode); |
45bada65 | 2392 | xm_outhash(hw, port, XM_HSM, filter); |
baef58b1 SH |
2393 | } |
2394 | ||
2395 | static void yukon_set_multicast(struct net_device *dev) | |
2396 | { | |
2397 | struct skge_port *skge = netdev_priv(dev); | |
2398 | struct skge_hw *hw = skge->hw; | |
2399 | int port = skge->port; | |
2400 | struct dev_mc_list *list = dev->mc_list; | |
2401 | u16 reg; | |
2402 | u8 filter[8]; | |
2403 | ||
2404 | memset(filter, 0, sizeof(filter)); | |
2405 | ||
6b0c1480 | 2406 | reg = gma_read16(hw, port, GM_RX_CTRL); |
baef58b1 SH |
2407 | reg |= GM_RXCR_UCF_ENA; |
2408 | ||
2409 | if (dev->flags & IFF_PROMISC) /* promiscious */ | |
2410 | reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); | |
2411 | else if (dev->flags & IFF_ALLMULTI) /* all multicast */ | |
2412 | memset(filter, 0xff, sizeof(filter)); | |
2413 | else if (dev->mc_count == 0) /* no multicast */ | |
2414 | reg &= ~GM_RXCR_MCF_ENA; | |
2415 | else { | |
2416 | int i; | |
2417 | reg |= GM_RXCR_MCF_ENA; | |
2418 | ||
95566065 | 2419 | for (i = 0; list && i < dev->mc_count; i++, list = list->next) { |
baef58b1 SH |
2420 | u32 bit = ether_crc(ETH_ALEN, list->dmi_addr) & 0x3f; |
2421 | filter[bit/8] |= 1 << (bit%8); | |
2422 | } | |
2423 | } | |
2424 | ||
2425 | ||
6b0c1480 | 2426 | gma_write16(hw, port, GM_MC_ADDR_H1, |
baef58b1 | 2427 | (u16)filter[0] | ((u16)filter[1] << 8)); |
6b0c1480 | 2428 | gma_write16(hw, port, GM_MC_ADDR_H2, |
baef58b1 | 2429 | (u16)filter[2] | ((u16)filter[3] << 8)); |
6b0c1480 | 2430 | gma_write16(hw, port, GM_MC_ADDR_H3, |
baef58b1 | 2431 | (u16)filter[4] | ((u16)filter[5] << 8)); |
6b0c1480 | 2432 | gma_write16(hw, port, GM_MC_ADDR_H4, |
baef58b1 SH |
2433 | (u16)filter[6] | ((u16)filter[7] << 8)); |
2434 | ||
6b0c1480 | 2435 | gma_write16(hw, port, GM_RX_CTRL, reg); |
baef58b1 SH |
2436 | } |
2437 | ||
2438 | static inline int bad_phy_status(const struct skge_hw *hw, u32 status) | |
2439 | { | |
2440 | if (hw->chip_id == CHIP_ID_GENESIS) | |
2441 | return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0; | |
2442 | else | |
2443 | return (status & GMR_FS_ANY_ERR) || | |
2444 | (status & GMR_FS_RX_OK) == 0; | |
2445 | } | |
2446 | ||
2447 | static void skge_rx_error(struct skge_port *skge, int slot, | |
2448 | u32 control, u32 status) | |
2449 | { | |
2450 | if (netif_msg_rx_err(skge)) | |
2451 | printk(KERN_DEBUG PFX "%s: rx err, slot %d control 0x%x status 0x%x\n", | |
2452 | skge->netdev->name, slot, control, status); | |
2453 | ||
19a33d4e | 2454 | if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF)) |
baef58b1 | 2455 | skge->net_stats.rx_length_errors++; |
19a33d4e SH |
2456 | else if (skge->hw->chip_id == CHIP_ID_GENESIS) { |
2457 | if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR)) | |
2458 | skge->net_stats.rx_length_errors++; | |
2459 | if (status & XMR_FS_FRA_ERR) | |
2460 | skge->net_stats.rx_frame_errors++; | |
2461 | if (status & XMR_FS_FCS_ERR) | |
2462 | skge->net_stats.rx_crc_errors++; | |
2463 | } else { | |
2464 | if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE)) | |
2465 | skge->net_stats.rx_length_errors++; | |
2466 | if (status & GMR_FS_FRAGMENT) | |
2467 | skge->net_stats.rx_frame_errors++; | |
2468 | if (status & GMR_FS_CRC_ERR) | |
2469 | skge->net_stats.rx_crc_errors++; | |
2470 | } | |
2471 | } | |
2472 | ||
2473 | /* Get receive buffer from descriptor. | |
2474 | * Handles copy of small buffers and reallocation failures | |
2475 | */ | |
2476 | static inline struct sk_buff *skge_rx_get(struct skge_port *skge, | |
2477 | struct skge_element *e, | |
2478 | unsigned int len) | |
2479 | { | |
2480 | struct sk_buff *nskb, *skb; | |
2481 | ||
2482 | if (len < RX_COPY_THRESHOLD) { | |
2483 | nskb = skge_rx_alloc(skge->netdev, len + NET_IP_ALIGN); | |
2484 | if (unlikely(!nskb)) | |
2485 | return NULL; | |
2486 | ||
2487 | pci_dma_sync_single_for_cpu(skge->hw->pdev, | |
2488 | pci_unmap_addr(e, mapaddr), | |
2489 | len, PCI_DMA_FROMDEVICE); | |
2490 | memcpy(nskb->data, e->skb->data, len); | |
2491 | pci_dma_sync_single_for_device(skge->hw->pdev, | |
2492 | pci_unmap_addr(e, mapaddr), | |
2493 | len, PCI_DMA_FROMDEVICE); | |
2494 | ||
2495 | if (skge->rx_csum) { | |
2496 | struct skge_rx_desc *rd = e->desc; | |
2497 | nskb->csum = le16_to_cpu(rd->csum2); | |
2498 | nskb->ip_summed = CHECKSUM_HW; | |
baef58b1 | 2499 | } |
19a33d4e SH |
2500 | skge_rx_reuse(e, skge->rx_buf_size); |
2501 | return nskb; | |
2502 | } else { | |
2503 | nskb = skge_rx_alloc(skge->netdev, skge->rx_buf_size); | |
2504 | if (unlikely(!nskb)) | |
2505 | return NULL; | |
2506 | ||
2507 | pci_unmap_single(skge->hw->pdev, | |
2508 | pci_unmap_addr(e, mapaddr), | |
2509 | pci_unmap_len(e, maplen), | |
2510 | PCI_DMA_FROMDEVICE); | |
2511 | skb = e->skb; | |
2512 | if (skge->rx_csum) { | |
2513 | struct skge_rx_desc *rd = e->desc; | |
2514 | skb->csum = le16_to_cpu(rd->csum2); | |
2515 | skb->ip_summed = CHECKSUM_HW; | |
2516 | } | |
2517 | ||
2518 | skge_rx_setup(skge, e, nskb, skge->rx_buf_size); | |
2519 | return skb; | |
baef58b1 SH |
2520 | } |
2521 | } | |
2522 | ||
19a33d4e | 2523 | |
baef58b1 SH |
2524 | static int skge_poll(struct net_device *dev, int *budget) |
2525 | { | |
2526 | struct skge_port *skge = netdev_priv(dev); | |
2527 | struct skge_hw *hw = skge->hw; | |
2528 | struct skge_ring *ring = &skge->rx_ring; | |
2529 | struct skge_element *e; | |
2530 | unsigned int to_do = min(dev->quota, *budget); | |
2531 | unsigned int work_done = 0; | |
7e676d91 SH |
2532 | |
2533 | pr_debug("skge_poll\n"); | |
baef58b1 | 2534 | |
19a33d4e | 2535 | for (e = ring->to_clean; work_done < to_do; e = e->next) { |
baef58b1 | 2536 | struct skge_rx_desc *rd = e->desc; |
19a33d4e | 2537 | struct sk_buff *skb; |
baef58b1 SH |
2538 | u32 control, len, status; |
2539 | ||
2540 | rmb(); | |
2541 | control = rd->control; | |
2542 | if (control & BMU_OWN) | |
2543 | break; | |
2544 | ||
2545 | len = control & BMU_BBC; | |
baef58b1 | 2546 | status = rd->status; |
19a33d4e SH |
2547 | |
2548 | if (unlikely((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF) | |
2549 | || bad_phy_status(hw, status))) { | |
baef58b1 | 2550 | skge_rx_error(skge, e - ring->start, control, status); |
19a33d4e | 2551 | skge_rx_reuse(e, skge->rx_buf_size); |
baef58b1 SH |
2552 | continue; |
2553 | } | |
2554 | ||
2555 | if (netif_msg_rx_status(skge)) | |
0b2d7fea | 2556 | printk(KERN_DEBUG PFX "%s: rx slot %td status 0x%x len %d\n", |
baef58b1 SH |
2557 | dev->name, e - ring->start, rd->status, len); |
2558 | ||
19a33d4e SH |
2559 | skb = skge_rx_get(skge, e, len); |
2560 | if (likely(skb)) { | |
2561 | skb_put(skb, len); | |
2562 | skb->protocol = eth_type_trans(skb, dev); | |
baef58b1 | 2563 | |
19a33d4e SH |
2564 | dev->last_rx = jiffies; |
2565 | netif_receive_skb(skb); | |
baef58b1 | 2566 | |
19a33d4e SH |
2567 | ++work_done; |
2568 | } else | |
2569 | skge_rx_reuse(e, skge->rx_buf_size); | |
baef58b1 SH |
2570 | } |
2571 | ring->to_clean = e; | |
2572 | ||
baef58b1 SH |
2573 | /* restart receiver */ |
2574 | wmb(); | |
2575 | skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), | |
2576 | CSR_START | CSR_IRQ_CL_F); | |
2577 | ||
19a33d4e SH |
2578 | *budget -= work_done; |
2579 | dev->quota -= work_done; | |
2580 | ||
2581 | if (work_done >= to_do) | |
2582 | return 1; /* not done */ | |
baef58b1 | 2583 | |
19a33d4e SH |
2584 | local_irq_disable(); |
2585 | __netif_rx_complete(dev); | |
2586 | hw->intr_mask |= portirqmask[skge->port]; | |
2587 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
2588 | local_irq_enable(); | |
2589 | return 0; | |
baef58b1 SH |
2590 | } |
2591 | ||
2592 | static inline void skge_tx_intr(struct net_device *dev) | |
2593 | { | |
2594 | struct skge_port *skge = netdev_priv(dev); | |
2595 | struct skge_hw *hw = skge->hw; | |
2596 | struct skge_ring *ring = &skge->tx_ring; | |
2597 | struct skge_element *e; | |
2598 | ||
2599 | spin_lock(&skge->tx_lock); | |
95566065 | 2600 | for (e = ring->to_clean; e != ring->to_use; e = e->next) { |
baef58b1 SH |
2601 | struct skge_tx_desc *td = e->desc; |
2602 | u32 control; | |
2603 | ||
2604 | rmb(); | |
2605 | control = td->control; | |
2606 | if (control & BMU_OWN) | |
2607 | break; | |
2608 | ||
2609 | if (unlikely(netif_msg_tx_done(skge))) | |
0b2d7fea | 2610 | printk(KERN_DEBUG PFX "%s: tx done slot %td status 0x%x\n", |
baef58b1 SH |
2611 | dev->name, e - ring->start, td->status); |
2612 | ||
2613 | skge_tx_free(hw, e); | |
2614 | e->skb = NULL; | |
2615 | ++skge->tx_avail; | |
2616 | } | |
2617 | ring->to_clean = e; | |
2618 | skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F); | |
2619 | ||
2620 | if (skge->tx_avail > MAX_SKB_FRAGS + 1) | |
2621 | netif_wake_queue(dev); | |
2622 | ||
2623 | spin_unlock(&skge->tx_lock); | |
2624 | } | |
2625 | ||
f6620cab SH |
2626 | /* Parity errors seem to happen when Genesis is connected to a switch |
2627 | * with no other ports present. Heartbeat error?? | |
2628 | */ | |
baef58b1 SH |
2629 | static void skge_mac_parity(struct skge_hw *hw, int port) |
2630 | { | |
f6620cab SH |
2631 | struct net_device *dev = hw->dev[port]; |
2632 | ||
2633 | if (dev) { | |
2634 | struct skge_port *skge = netdev_priv(dev); | |
2635 | ++skge->net_stats.tx_heartbeat_errors; | |
2636 | } | |
baef58b1 SH |
2637 | |
2638 | if (hw->chip_id == CHIP_ID_GENESIS) | |
6b0c1480 | 2639 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), |
baef58b1 SH |
2640 | MFF_CLR_PERR); |
2641 | else | |
2642 | /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */ | |
6b0c1480 | 2643 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), |
981d0377 | 2644 | (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0) |
baef58b1 SH |
2645 | ? GMF_CLI_TX_FC : GMF_CLI_TX_PE); |
2646 | } | |
2647 | ||
2648 | static void skge_pci_clear(struct skge_hw *hw) | |
2649 | { | |
2650 | u16 status; | |
2651 | ||
467b3417 | 2652 | pci_read_config_word(hw->pdev, PCI_STATUS, &status); |
baef58b1 | 2653 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); |
467b3417 SH |
2654 | pci_write_config_word(hw->pdev, PCI_STATUS, |
2655 | status | PCI_STATUS_ERROR_BITS); | |
baef58b1 SH |
2656 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
2657 | } | |
2658 | ||
2659 | static void skge_mac_intr(struct skge_hw *hw, int port) | |
2660 | { | |
95566065 | 2661 | if (hw->chip_id == CHIP_ID_GENESIS) |
baef58b1 SH |
2662 | genesis_mac_intr(hw, port); |
2663 | else | |
2664 | yukon_mac_intr(hw, port); | |
2665 | } | |
2666 | ||
2667 | /* Handle device specific framing and timeout interrupts */ | |
2668 | static void skge_error_irq(struct skge_hw *hw) | |
2669 | { | |
2670 | u32 hwstatus = skge_read32(hw, B0_HWE_ISRC); | |
2671 | ||
2672 | if (hw->chip_id == CHIP_ID_GENESIS) { | |
2673 | /* clear xmac errors */ | |
2674 | if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1)) | |
6b0c1480 | 2675 | skge_write16(hw, SK_REG(0, RX_MFF_CTRL1), MFF_CLR_INSTAT); |
baef58b1 | 2676 | if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2)) |
6b0c1480 | 2677 | skge_write16(hw, SK_REG(0, RX_MFF_CTRL2), MFF_CLR_INSTAT); |
baef58b1 SH |
2678 | } else { |
2679 | /* Timestamp (unused) overflow */ | |
2680 | if (hwstatus & IS_IRQ_TIST_OV) | |
2681 | skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); | |
baef58b1 SH |
2682 | } |
2683 | ||
2684 | if (hwstatus & IS_RAM_RD_PAR) { | |
2685 | printk(KERN_ERR PFX "Ram read data parity error\n"); | |
2686 | skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR); | |
2687 | } | |
2688 | ||
2689 | if (hwstatus & IS_RAM_WR_PAR) { | |
2690 | printk(KERN_ERR PFX "Ram write data parity error\n"); | |
2691 | skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR); | |
2692 | } | |
2693 | ||
2694 | if (hwstatus & IS_M1_PAR_ERR) | |
2695 | skge_mac_parity(hw, 0); | |
2696 | ||
2697 | if (hwstatus & IS_M2_PAR_ERR) | |
2698 | skge_mac_parity(hw, 1); | |
2699 | ||
2700 | if (hwstatus & IS_R1_PAR_ERR) | |
2701 | skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P); | |
2702 | ||
2703 | if (hwstatus & IS_R2_PAR_ERR) | |
2704 | skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P); | |
2705 | ||
2706 | if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) { | |
2707 | printk(KERN_ERR PFX "hardware error detected (status 0x%x)\n", | |
2708 | hwstatus); | |
2709 | ||
2710 | skge_pci_clear(hw); | |
2711 | ||
050ec18a | 2712 | /* if error still set then just ignore it */ |
baef58b1 SH |
2713 | hwstatus = skge_read32(hw, B0_HWE_ISRC); |
2714 | if (hwstatus & IS_IRQ_STAT) { | |
050ec18a | 2715 | pr_debug("IRQ status %x: still set ignoring hardware errors\n", |
baef58b1 SH |
2716 | hwstatus); |
2717 | hw->intr_mask &= ~IS_HW_ERR; | |
2718 | } | |
2719 | } | |
2720 | } | |
2721 | ||
2722 | /* | |
2723 | * Interrrupt from PHY are handled in tasklet (soft irq) | |
2724 | * because accessing phy registers requires spin wait which might | |
2725 | * cause excess interrupt latency. | |
2726 | */ | |
2727 | static void skge_extirq(unsigned long data) | |
2728 | { | |
2729 | struct skge_hw *hw = (struct skge_hw *) data; | |
2730 | int port; | |
2731 | ||
2732 | spin_lock(&hw->phy_lock); | |
2733 | for (port = 0; port < 2; port++) { | |
2734 | struct net_device *dev = hw->dev[port]; | |
2735 | ||
2736 | if (dev && netif_running(dev)) { | |
2737 | struct skge_port *skge = netdev_priv(dev); | |
2738 | ||
2739 | if (hw->chip_id != CHIP_ID_GENESIS) | |
2740 | yukon_phy_intr(skge); | |
89bf5f23 | 2741 | else |
45bada65 | 2742 | bcom_phy_intr(skge); |
baef58b1 SH |
2743 | } |
2744 | } | |
2745 | spin_unlock(&hw->phy_lock); | |
2746 | ||
2747 | local_irq_disable(); | |
2748 | hw->intr_mask |= IS_EXT_REG; | |
2749 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
2750 | local_irq_enable(); | |
2751 | } | |
2752 | ||
2753 | static irqreturn_t skge_intr(int irq, void *dev_id, struct pt_regs *regs) | |
2754 | { | |
2755 | struct skge_hw *hw = dev_id; | |
2756 | u32 status = skge_read32(hw, B0_SP_ISRC); | |
2757 | ||
2758 | if (status == 0 || status == ~0) /* hotplug or shared irq */ | |
2759 | return IRQ_NONE; | |
2760 | ||
2761 | status &= hw->intr_mask; | |
7e676d91 | 2762 | if (status & IS_R1_F) { |
baef58b1 | 2763 | hw->intr_mask &= ~IS_R1_F; |
7e676d91 | 2764 | netif_rx_schedule(hw->dev[0]); |
baef58b1 SH |
2765 | } |
2766 | ||
7e676d91 | 2767 | if (status & IS_R2_F) { |
baef58b1 | 2768 | hw->intr_mask &= ~IS_R2_F; |
7e676d91 | 2769 | netif_rx_schedule(hw->dev[1]); |
baef58b1 SH |
2770 | } |
2771 | ||
2772 | if (status & IS_XA1_F) | |
2773 | skge_tx_intr(hw->dev[0]); | |
2774 | ||
2775 | if (status & IS_XA2_F) | |
2776 | skge_tx_intr(hw->dev[1]); | |
2777 | ||
d25f5a67 SH |
2778 | if (status & IS_PA_TO_RX1) { |
2779 | struct skge_port *skge = netdev_priv(hw->dev[0]); | |
2780 | ++skge->net_stats.rx_over_errors; | |
2781 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1); | |
2782 | } | |
2783 | ||
2784 | if (status & IS_PA_TO_RX2) { | |
2785 | struct skge_port *skge = netdev_priv(hw->dev[1]); | |
2786 | ++skge->net_stats.rx_over_errors; | |
2787 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2); | |
2788 | } | |
2789 | ||
2790 | if (status & IS_PA_TO_TX1) | |
2791 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1); | |
2792 | ||
2793 | if (status & IS_PA_TO_TX2) | |
2794 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2); | |
2795 | ||
baef58b1 SH |
2796 | if (status & IS_MAC1) |
2797 | skge_mac_intr(hw, 0); | |
95566065 | 2798 | |
baef58b1 SH |
2799 | if (status & IS_MAC2) |
2800 | skge_mac_intr(hw, 1); | |
2801 | ||
2802 | if (status & IS_HW_ERR) | |
2803 | skge_error_irq(hw); | |
2804 | ||
2805 | if (status & IS_EXT_REG) { | |
2806 | hw->intr_mask &= ~IS_EXT_REG; | |
2807 | tasklet_schedule(&hw->ext_tasklet); | |
2808 | } | |
2809 | ||
7e676d91 | 2810 | skge_write32(hw, B0_IMSK, hw->intr_mask); |
baef58b1 SH |
2811 | |
2812 | return IRQ_HANDLED; | |
2813 | } | |
2814 | ||
2815 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2816 | static void skge_netpoll(struct net_device *dev) | |
2817 | { | |
2818 | struct skge_port *skge = netdev_priv(dev); | |
2819 | ||
2820 | disable_irq(dev->irq); | |
2821 | skge_intr(dev->irq, skge->hw, NULL); | |
2822 | enable_irq(dev->irq); | |
2823 | } | |
2824 | #endif | |
2825 | ||
2826 | static int skge_set_mac_address(struct net_device *dev, void *p) | |
2827 | { | |
2828 | struct skge_port *skge = netdev_priv(dev); | |
2829 | struct sockaddr *addr = p; | |
2830 | int err = 0; | |
2831 | ||
2832 | if (!is_valid_ether_addr(addr->sa_data)) | |
2833 | return -EADDRNOTAVAIL; | |
2834 | ||
2835 | skge_down(dev); | |
2836 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); | |
2837 | memcpy_toio(skge->hw->regs + B2_MAC_1 + skge->port*8, | |
2838 | dev->dev_addr, ETH_ALEN); | |
2839 | memcpy_toio(skge->hw->regs + B2_MAC_2 + skge->port*8, | |
2840 | dev->dev_addr, ETH_ALEN); | |
2841 | if (dev->flags & IFF_UP) | |
2842 | err = skge_up(dev); | |
2843 | return err; | |
2844 | } | |
2845 | ||
2846 | static const struct { | |
2847 | u8 id; | |
2848 | const char *name; | |
2849 | } skge_chips[] = { | |
2850 | { CHIP_ID_GENESIS, "Genesis" }, | |
2851 | { CHIP_ID_YUKON, "Yukon" }, | |
2852 | { CHIP_ID_YUKON_LITE, "Yukon-Lite"}, | |
2853 | { CHIP_ID_YUKON_LP, "Yukon-LP"}, | |
baef58b1 SH |
2854 | }; |
2855 | ||
2856 | static const char *skge_board_name(const struct skge_hw *hw) | |
2857 | { | |
2858 | int i; | |
2859 | static char buf[16]; | |
2860 | ||
2861 | for (i = 0; i < ARRAY_SIZE(skge_chips); i++) | |
2862 | if (skge_chips[i].id == hw->chip_id) | |
2863 | return skge_chips[i].name; | |
2864 | ||
2865 | snprintf(buf, sizeof buf, "chipid 0x%x", hw->chip_id); | |
2866 | return buf; | |
2867 | } | |
2868 | ||
2869 | ||
2870 | /* | |
2871 | * Setup the board data structure, but don't bring up | |
2872 | * the port(s) | |
2873 | */ | |
2874 | static int skge_reset(struct skge_hw *hw) | |
2875 | { | |
2876 | u16 ctst; | |
5e1705dd | 2877 | u8 t8, mac_cfg, pmd_type, phy_type; |
981d0377 | 2878 | int i; |
baef58b1 SH |
2879 | |
2880 | ctst = skge_read16(hw, B0_CTST); | |
2881 | ||
2882 | /* do a SW reset */ | |
2883 | skge_write8(hw, B0_CTST, CS_RST_SET); | |
2884 | skge_write8(hw, B0_CTST, CS_RST_CLR); | |
2885 | ||
2886 | /* clear PCI errors, if any */ | |
2887 | skge_pci_clear(hw); | |
2888 | ||
2889 | skge_write8(hw, B0_CTST, CS_MRST_CLR); | |
2890 | ||
2891 | /* restore CLK_RUN bits (for Yukon-Lite) */ | |
2892 | skge_write16(hw, B0_CTST, | |
2893 | ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA)); | |
2894 | ||
2895 | hw->chip_id = skge_read8(hw, B2_CHIP_ID); | |
5e1705dd SH |
2896 | phy_type = skge_read8(hw, B2_E_1) & 0xf; |
2897 | pmd_type = skge_read8(hw, B2_PMD_TYP); | |
2898 | hw->copper = (pmd_type == 'T' || pmd_type == '1'); | |
baef58b1 | 2899 | |
95566065 | 2900 | switch (hw->chip_id) { |
baef58b1 | 2901 | case CHIP_ID_GENESIS: |
5e1705dd | 2902 | switch (phy_type) { |
baef58b1 SH |
2903 | case SK_PHY_BCOM: |
2904 | hw->phy_addr = PHY_ADDR_BCOM; | |
2905 | break; | |
2906 | default: | |
2907 | printk(KERN_ERR PFX "%s: unsupported phy type 0x%x\n", | |
5e1705dd | 2908 | pci_name(hw->pdev), phy_type); |
baef58b1 SH |
2909 | return -EOPNOTSUPP; |
2910 | } | |
2911 | break; | |
2912 | ||
2913 | case CHIP_ID_YUKON: | |
2914 | case CHIP_ID_YUKON_LITE: | |
2915 | case CHIP_ID_YUKON_LP: | |
5e1705dd SH |
2916 | if (phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S') |
2917 | hw->copper = 1; | |
baef58b1 SH |
2918 | |
2919 | hw->phy_addr = PHY_ADDR_MARV; | |
baef58b1 SH |
2920 | break; |
2921 | ||
2922 | default: | |
2923 | printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n", | |
2924 | pci_name(hw->pdev), hw->chip_id); | |
2925 | return -EOPNOTSUPP; | |
2926 | } | |
2927 | ||
981d0377 SH |
2928 | mac_cfg = skge_read8(hw, B2_MAC_CFG); |
2929 | hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2; | |
2930 | hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4; | |
baef58b1 SH |
2931 | |
2932 | /* read the adapters RAM size */ | |
2933 | t8 = skge_read8(hw, B2_E_0); | |
2934 | if (hw->chip_id == CHIP_ID_GENESIS) { | |
2935 | if (t8 == 3) { | |
2936 | /* special case: 4 x 64k x 36, offset = 0x80000 */ | |
2937 | hw->ram_size = 0x100000; | |
2938 | hw->ram_offset = 0x80000; | |
2939 | } else | |
2940 | hw->ram_size = t8 * 512; | |
2941 | } | |
2942 | else if (t8 == 0) | |
2943 | hw->ram_size = 0x20000; | |
2944 | else | |
2945 | hw->ram_size = t8 * 4096; | |
2946 | ||
050ec18a | 2947 | hw->intr_mask = IS_HW_ERR | IS_EXT_REG; |
baef58b1 SH |
2948 | if (hw->chip_id == CHIP_ID_GENESIS) |
2949 | genesis_init(hw); | |
2950 | else { | |
2951 | /* switch power to VCC (WA for VAUX problem) */ | |
2952 | skge_write8(hw, B0_POWER_CTRL, | |
2953 | PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON); | |
050ec18a SH |
2954 | /* avoid boards with stuck Hardware error bits */ |
2955 | if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) && | |
2956 | (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) { | |
2957 | printk(KERN_WARNING PFX "stuck hardware sensor bit\n"); | |
2958 | hw->intr_mask &= ~IS_HW_ERR; | |
2959 | } | |
2960 | ||
981d0377 | 2961 | for (i = 0; i < hw->ports; i++) { |
6b0c1480 SH |
2962 | skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET); |
2963 | skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR); | |
baef58b1 SH |
2964 | } |
2965 | } | |
2966 | ||
2967 | /* turn off hardware timer (unused) */ | |
2968 | skge_write8(hw, B2_TI_CTRL, TIM_STOP); | |
2969 | skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ); | |
2970 | skge_write8(hw, B0_LED, LED_STAT_ON); | |
2971 | ||
2972 | /* enable the Tx Arbiters */ | |
981d0377 | 2973 | for (i = 0; i < hw->ports; i++) |
6b0c1480 | 2974 | skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB); |
baef58b1 SH |
2975 | |
2976 | /* Initialize ram interface */ | |
2977 | skge_write16(hw, B3_RI_CTRL, RI_RST_CLR); | |
2978 | ||
2979 | skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53); | |
2980 | skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53); | |
2981 | skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53); | |
2982 | skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53); | |
2983 | skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53); | |
2984 | skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53); | |
2985 | skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53); | |
2986 | skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53); | |
2987 | skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53); | |
2988 | skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53); | |
2989 | skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53); | |
2990 | skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53); | |
2991 | ||
2992 | skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK); | |
2993 | ||
2994 | /* Set interrupt moderation for Transmit only | |
2995 | * Receive interrupts avoided by NAPI | |
2996 | */ | |
2997 | skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F); | |
2998 | skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100)); | |
2999 | skge_write32(hw, B2_IRQM_CTRL, TIM_START); | |
3000 | ||
baef58b1 SH |
3001 | skge_write32(hw, B0_IMSK, hw->intr_mask); |
3002 | ||
3003 | if (hw->chip_id != CHIP_ID_GENESIS) | |
3004 | skge_write8(hw, GMAC_IRQ_MSK, 0); | |
3005 | ||
3006 | spin_lock_bh(&hw->phy_lock); | |
981d0377 | 3007 | for (i = 0; i < hw->ports; i++) { |
baef58b1 SH |
3008 | if (hw->chip_id == CHIP_ID_GENESIS) |
3009 | genesis_reset(hw, i); | |
3010 | else | |
3011 | yukon_reset(hw, i); | |
3012 | } | |
3013 | spin_unlock_bh(&hw->phy_lock); | |
3014 | ||
3015 | return 0; | |
3016 | } | |
3017 | ||
3018 | /* Initialize network device */ | |
981d0377 SH |
3019 | static struct net_device *skge_devinit(struct skge_hw *hw, int port, |
3020 | int highmem) | |
baef58b1 SH |
3021 | { |
3022 | struct skge_port *skge; | |
3023 | struct net_device *dev = alloc_etherdev(sizeof(*skge)); | |
3024 | ||
3025 | if (!dev) { | |
3026 | printk(KERN_ERR "skge etherdev alloc failed"); | |
3027 | return NULL; | |
3028 | } | |
3029 | ||
3030 | SET_MODULE_OWNER(dev); | |
3031 | SET_NETDEV_DEV(dev, &hw->pdev->dev); | |
3032 | dev->open = skge_up; | |
3033 | dev->stop = skge_down; | |
3034 | dev->hard_start_xmit = skge_xmit_frame; | |
3035 | dev->get_stats = skge_get_stats; | |
3036 | if (hw->chip_id == CHIP_ID_GENESIS) | |
3037 | dev->set_multicast_list = genesis_set_multicast; | |
3038 | else | |
3039 | dev->set_multicast_list = yukon_set_multicast; | |
3040 | ||
3041 | dev->set_mac_address = skge_set_mac_address; | |
3042 | dev->change_mtu = skge_change_mtu; | |
3043 | SET_ETHTOOL_OPS(dev, &skge_ethtool_ops); | |
3044 | dev->tx_timeout = skge_tx_timeout; | |
3045 | dev->watchdog_timeo = TX_WATCHDOG; | |
3046 | dev->poll = skge_poll; | |
3047 | dev->weight = NAPI_WEIGHT; | |
3048 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3049 | dev->poll_controller = skge_netpoll; | |
3050 | #endif | |
3051 | dev->irq = hw->pdev->irq; | |
3052 | dev->features = NETIF_F_LLTX; | |
981d0377 SH |
3053 | if (highmem) |
3054 | dev->features |= NETIF_F_HIGHDMA; | |
baef58b1 SH |
3055 | |
3056 | skge = netdev_priv(dev); | |
3057 | skge->netdev = dev; | |
3058 | skge->hw = hw; | |
3059 | skge->msg_enable = netif_msg_init(debug, default_msg); | |
3060 | skge->tx_ring.count = DEFAULT_TX_RING_SIZE; | |
3061 | skge->rx_ring.count = DEFAULT_RX_RING_SIZE; | |
3062 | ||
3063 | /* Auto speed and flow control */ | |
3064 | skge->autoneg = AUTONEG_ENABLE; | |
3065 | skge->flow_control = FLOW_MODE_SYMMETRIC; | |
3066 | skge->duplex = -1; | |
3067 | skge->speed = -1; | |
31b619c5 | 3068 | skge->advertising = skge_supported_modes(hw); |
baef58b1 SH |
3069 | |
3070 | hw->dev[port] = dev; | |
3071 | ||
3072 | skge->port = port; | |
3073 | ||
3074 | spin_lock_init(&skge->tx_lock); | |
3075 | ||
baef58b1 SH |
3076 | if (hw->chip_id != CHIP_ID_GENESIS) { |
3077 | dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; | |
3078 | skge->rx_csum = 1; | |
3079 | } | |
3080 | ||
3081 | /* read the mac address */ | |
3082 | memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN); | |
3083 | ||
3084 | /* device is off until link detection */ | |
3085 | netif_carrier_off(dev); | |
3086 | netif_stop_queue(dev); | |
3087 | ||
3088 | return dev; | |
3089 | } | |
3090 | ||
3091 | static void __devinit skge_show_addr(struct net_device *dev) | |
3092 | { | |
3093 | const struct skge_port *skge = netdev_priv(dev); | |
3094 | ||
3095 | if (netif_msg_probe(skge)) | |
3096 | printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n", | |
3097 | dev->name, | |
3098 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], | |
3099 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); | |
3100 | } | |
3101 | ||
3102 | static int __devinit skge_probe(struct pci_dev *pdev, | |
3103 | const struct pci_device_id *ent) | |
3104 | { | |
3105 | struct net_device *dev, *dev1; | |
3106 | struct skge_hw *hw; | |
3107 | int err, using_dac = 0; | |
3108 | ||
3109 | if ((err = pci_enable_device(pdev))) { | |
3110 | printk(KERN_ERR PFX "%s cannot enable PCI device\n", | |
3111 | pci_name(pdev)); | |
3112 | goto err_out; | |
3113 | } | |
3114 | ||
3115 | if ((err = pci_request_regions(pdev, DRV_NAME))) { | |
3116 | printk(KERN_ERR PFX "%s cannot obtain PCI resources\n", | |
3117 | pci_name(pdev)); | |
3118 | goto err_out_disable_pdev; | |
3119 | } | |
3120 | ||
3121 | pci_set_master(pdev); | |
3122 | ||
3123 | if (!(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) | |
3124 | using_dac = 1; | |
3125 | else if (!(err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) { | |
3126 | printk(KERN_ERR PFX "%s no usable DMA configuration\n", | |
3127 | pci_name(pdev)); | |
3128 | goto err_out_free_regions; | |
3129 | } | |
3130 | ||
3131 | #ifdef __BIG_ENDIAN | |
3132 | /* byte swap decriptors in hardware */ | |
3133 | { | |
3134 | u32 reg; | |
3135 | ||
3136 | pci_read_config_dword(pdev, PCI_DEV_REG2, ®); | |
3137 | reg |= PCI_REV_DESC; | |
3138 | pci_write_config_dword(pdev, PCI_DEV_REG2, reg); | |
3139 | } | |
3140 | #endif | |
3141 | ||
3142 | err = -ENOMEM; | |
3143 | hw = kmalloc(sizeof(*hw), GFP_KERNEL); | |
3144 | if (!hw) { | |
3145 | printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n", | |
3146 | pci_name(pdev)); | |
3147 | goto err_out_free_regions; | |
3148 | } | |
3149 | ||
3150 | memset(hw, 0, sizeof(*hw)); | |
3151 | hw->pdev = pdev; | |
3152 | spin_lock_init(&hw->phy_lock); | |
3153 | tasklet_init(&hw->ext_tasklet, skge_extirq, (unsigned long) hw); | |
3154 | ||
3155 | hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000); | |
3156 | if (!hw->regs) { | |
3157 | printk(KERN_ERR PFX "%s: cannot map device registers\n", | |
3158 | pci_name(pdev)); | |
3159 | goto err_out_free_hw; | |
3160 | } | |
3161 | ||
3162 | if ((err = request_irq(pdev->irq, skge_intr, SA_SHIRQ, DRV_NAME, hw))) { | |
3163 | printk(KERN_ERR PFX "%s: cannot assign irq %d\n", | |
3164 | pci_name(pdev), pdev->irq); | |
3165 | goto err_out_iounmap; | |
3166 | } | |
3167 | pci_set_drvdata(pdev, hw); | |
3168 | ||
3169 | err = skge_reset(hw); | |
3170 | if (err) | |
3171 | goto err_out_free_irq; | |
3172 | ||
3173 | printk(KERN_INFO PFX "addr 0x%lx irq %d chip %s rev %d\n", | |
3174 | pci_resource_start(pdev, 0), pdev->irq, | |
981d0377 | 3175 | skge_board_name(hw), hw->chip_rev); |
baef58b1 | 3176 | |
981d0377 | 3177 | if ((dev = skge_devinit(hw, 0, using_dac)) == NULL) |
baef58b1 SH |
3178 | goto err_out_led_off; |
3179 | ||
baef58b1 SH |
3180 | if ((err = register_netdev(dev))) { |
3181 | printk(KERN_ERR PFX "%s: cannot register net device\n", | |
3182 | pci_name(pdev)); | |
3183 | goto err_out_free_netdev; | |
3184 | } | |
3185 | ||
3186 | skge_show_addr(dev); | |
3187 | ||
981d0377 | 3188 | if (hw->ports > 1 && (dev1 = skge_devinit(hw, 1, using_dac))) { |
baef58b1 SH |
3189 | if (register_netdev(dev1) == 0) |
3190 | skge_show_addr(dev1); | |
3191 | else { | |
3192 | /* Failure to register second port need not be fatal */ | |
3193 | printk(KERN_WARNING PFX "register of second port failed\n"); | |
3194 | hw->dev[1] = NULL; | |
3195 | free_netdev(dev1); | |
3196 | } | |
3197 | } | |
3198 | ||
3199 | return 0; | |
3200 | ||
3201 | err_out_free_netdev: | |
3202 | free_netdev(dev); | |
3203 | err_out_led_off: | |
3204 | skge_write16(hw, B0_LED, LED_STAT_OFF); | |
3205 | err_out_free_irq: | |
3206 | free_irq(pdev->irq, hw); | |
3207 | err_out_iounmap: | |
3208 | iounmap(hw->regs); | |
3209 | err_out_free_hw: | |
3210 | kfree(hw); | |
3211 | err_out_free_regions: | |
3212 | pci_release_regions(pdev); | |
3213 | err_out_disable_pdev: | |
3214 | pci_disable_device(pdev); | |
3215 | pci_set_drvdata(pdev, NULL); | |
3216 | err_out: | |
3217 | return err; | |
3218 | } | |
3219 | ||
3220 | static void __devexit skge_remove(struct pci_dev *pdev) | |
3221 | { | |
3222 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
3223 | struct net_device *dev0, *dev1; | |
3224 | ||
95566065 | 3225 | if (!hw) |
baef58b1 SH |
3226 | return; |
3227 | ||
3228 | if ((dev1 = hw->dev[1])) | |
3229 | unregister_netdev(dev1); | |
3230 | dev0 = hw->dev[0]; | |
3231 | unregister_netdev(dev0); | |
3232 | ||
3233 | tasklet_kill(&hw->ext_tasklet); | |
3234 | ||
3235 | free_irq(pdev->irq, hw); | |
3236 | pci_release_regions(pdev); | |
3237 | pci_disable_device(pdev); | |
3238 | if (dev1) | |
3239 | free_netdev(dev1); | |
3240 | free_netdev(dev0); | |
3241 | skge_write16(hw, B0_LED, LED_STAT_OFF); | |
3242 | iounmap(hw->regs); | |
3243 | kfree(hw); | |
3244 | pci_set_drvdata(pdev, NULL); | |
3245 | } | |
3246 | ||
3247 | #ifdef CONFIG_PM | |
2a569579 | 3248 | static int skge_suspend(struct pci_dev *pdev, pm_message_t state) |
baef58b1 SH |
3249 | { |
3250 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
3251 | int i, wol = 0; | |
3252 | ||
95566065 | 3253 | for (i = 0; i < 2; i++) { |
baef58b1 SH |
3254 | struct net_device *dev = hw->dev[i]; |
3255 | ||
3256 | if (dev) { | |
3257 | struct skge_port *skge = netdev_priv(dev); | |
3258 | if (netif_running(dev)) { | |
3259 | netif_carrier_off(dev); | |
3260 | skge_down(dev); | |
3261 | } | |
3262 | netif_device_detach(dev); | |
3263 | wol |= skge->wol; | |
3264 | } | |
3265 | } | |
3266 | ||
3267 | pci_save_state(pdev); | |
2a569579 | 3268 | pci_enable_wake(pdev, pci_choose_state(pdev, state), wol); |
baef58b1 SH |
3269 | pci_disable_device(pdev); |
3270 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
3271 | ||
3272 | return 0; | |
3273 | } | |
3274 | ||
3275 | static int skge_resume(struct pci_dev *pdev) | |
3276 | { | |
3277 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
3278 | int i; | |
3279 | ||
3280 | pci_set_power_state(pdev, PCI_D0); | |
3281 | pci_restore_state(pdev); | |
3282 | pci_enable_wake(pdev, PCI_D0, 0); | |
3283 | ||
3284 | skge_reset(hw); | |
3285 | ||
95566065 | 3286 | for (i = 0; i < 2; i++) { |
baef58b1 SH |
3287 | struct net_device *dev = hw->dev[i]; |
3288 | if (dev) { | |
3289 | netif_device_attach(dev); | |
95566065 | 3290 | if (netif_running(dev)) |
baef58b1 SH |
3291 | skge_up(dev); |
3292 | } | |
3293 | } | |
3294 | return 0; | |
3295 | } | |
3296 | #endif | |
3297 | ||
3298 | static struct pci_driver skge_driver = { | |
3299 | .name = DRV_NAME, | |
3300 | .id_table = skge_id_table, | |
3301 | .probe = skge_probe, | |
3302 | .remove = __devexit_p(skge_remove), | |
3303 | #ifdef CONFIG_PM | |
3304 | .suspend = skge_suspend, | |
3305 | .resume = skge_resume, | |
3306 | #endif | |
3307 | }; | |
3308 | ||
3309 | static int __init skge_init_module(void) | |
3310 | { | |
3311 | return pci_module_init(&skge_driver); | |
3312 | } | |
3313 | ||
3314 | static void __exit skge_cleanup_module(void) | |
3315 | { | |
3316 | pci_unregister_driver(&skge_driver); | |
3317 | } | |
3318 | ||
3319 | module_init(skge_init_module); | |
3320 | module_exit(skge_cleanup_module); |