Commit | Line | Data |
---|---|---|
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> |
2cd8e5d3 | 40 | #include <linux/mii.h> |
baef58b1 SH |
41 | #include <asm/irq.h> |
42 | ||
43 | #include "skge.h" | |
44 | ||
45 | #define DRV_NAME "skge" | |
d7eaee08 | 46 | #define DRV_VERSION "1.2" |
baef58b1 SH |
47 | #define PFX DRV_NAME " " |
48 | ||
49 | #define DEFAULT_TX_RING_SIZE 128 | |
50 | #define DEFAULT_RX_RING_SIZE 512 | |
51 | #define MAX_TX_RING_SIZE 1024 | |
52 | #define MAX_RX_RING_SIZE 4096 | |
19a33d4e SH |
53 | #define RX_COPY_THRESHOLD 128 |
54 | #define RX_BUF_SIZE 1536 | |
baef58b1 SH |
55 | #define PHY_RETRIES 1000 |
56 | #define ETH_JUMBO_MTU 9000 | |
57 | #define TX_WATCHDOG (5 * HZ) | |
58 | #define NAPI_WEIGHT 64 | |
6abebb53 | 59 | #define BLINK_MS 250 |
baef58b1 SH |
60 | |
61 | MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver"); | |
62 | MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>"); | |
63 | MODULE_LICENSE("GPL"); | |
64 | MODULE_VERSION(DRV_VERSION); | |
65 | ||
66 | static const u32 default_msg | |
67 | = NETIF_MSG_DRV| NETIF_MSG_PROBE| NETIF_MSG_LINK | |
68 | | NETIF_MSG_IFUP| NETIF_MSG_IFDOWN; | |
69 | ||
70 | static int debug = -1; /* defaults above */ | |
71 | module_param(debug, int, 0); | |
72 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
73 | ||
74 | static const struct pci_device_id skge_id_table[] = { | |
275834d1 SH |
75 | { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940) }, |
76 | { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940B) }, | |
77 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE) }, | |
78 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU) }, | |
275834d1 SH |
79 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, PCI_DEVICE_ID_DLINK_DGE510T), }, |
80 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) }, | |
81 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */ | |
82 | { PCI_DEVICE(PCI_VENDOR_ID_CNET, PCI_DEVICE_ID_CNET_GIGACARD) }, | |
275834d1 | 83 | { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1064) }, |
86f0cd50 | 84 | { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015, }, |
baef58b1 SH |
85 | { 0 } |
86 | }; | |
87 | MODULE_DEVICE_TABLE(pci, skge_id_table); | |
88 | ||
89 | static int skge_up(struct net_device *dev); | |
90 | static int skge_down(struct net_device *dev); | |
91 | static void skge_tx_clean(struct skge_port *skge); | |
2cd8e5d3 SH |
92 | static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); |
93 | static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); | |
baef58b1 SH |
94 | static void genesis_get_stats(struct skge_port *skge, u64 *data); |
95 | static void yukon_get_stats(struct skge_port *skge, u64 *data); | |
96 | static void yukon_init(struct skge_hw *hw, int port); | |
97 | static void yukon_reset(struct skge_hw *hw, int port); | |
98 | static void genesis_mac_init(struct skge_hw *hw, int port); | |
99 | static void genesis_reset(struct skge_hw *hw, int port); | |
45bada65 | 100 | static void genesis_link_up(struct skge_port *skge); |
baef58b1 | 101 | |
7e676d91 | 102 | /* Avoid conditionals by using array */ |
baef58b1 SH |
103 | static const int txqaddr[] = { Q_XA1, Q_XA2 }; |
104 | static const int rxqaddr[] = { Q_R1, Q_R2 }; | |
105 | static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F }; | |
106 | static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F }; | |
7e676d91 | 107 | static const u32 portirqmask[] = { IS_PORT_1, IS_PORT_2 }; |
baef58b1 | 108 | |
baef58b1 SH |
109 | static int skge_get_regs_len(struct net_device *dev) |
110 | { | |
c3f8be96 | 111 | return 0x4000; |
baef58b1 SH |
112 | } |
113 | ||
114 | /* | |
c3f8be96 SH |
115 | * Returns copy of whole control register region |
116 | * Note: skip RAM address register because accessing it will | |
117 | * cause bus hangs! | |
baef58b1 SH |
118 | */ |
119 | static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
120 | void *p) | |
121 | { | |
122 | const struct skge_port *skge = netdev_priv(dev); | |
baef58b1 | 123 | const void __iomem *io = skge->hw->regs; |
baef58b1 SH |
124 | |
125 | regs->version = 1; | |
c3f8be96 SH |
126 | memset(p, 0, regs->len); |
127 | memcpy_fromio(p, io, B3_RAM_ADDR); | |
baef58b1 | 128 | |
c3f8be96 SH |
129 | memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1, |
130 | regs->len - B3_RI_WTO_R1); | |
baef58b1 SH |
131 | } |
132 | ||
8f3f8193 | 133 | /* Wake on Lan only supported on Yukon chips with rev 1 or above */ |
baef58b1 SH |
134 | static int wol_supported(const struct skge_hw *hw) |
135 | { | |
136 | return !((hw->chip_id == CHIP_ID_GENESIS || | |
981d0377 | 137 | (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0))); |
baef58b1 SH |
138 | } |
139 | ||
140 | static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
141 | { | |
142 | struct skge_port *skge = netdev_priv(dev); | |
143 | ||
144 | wol->supported = wol_supported(skge->hw) ? WAKE_MAGIC : 0; | |
145 | wol->wolopts = skge->wol ? WAKE_MAGIC : 0; | |
146 | } | |
147 | ||
148 | static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
149 | { | |
150 | struct skge_port *skge = netdev_priv(dev); | |
151 | struct skge_hw *hw = skge->hw; | |
152 | ||
95566065 | 153 | if (wol->wolopts != WAKE_MAGIC && wol->wolopts != 0) |
baef58b1 SH |
154 | return -EOPNOTSUPP; |
155 | ||
156 | if (wol->wolopts == WAKE_MAGIC && !wol_supported(hw)) | |
157 | return -EOPNOTSUPP; | |
158 | ||
159 | skge->wol = wol->wolopts == WAKE_MAGIC; | |
160 | ||
161 | if (skge->wol) { | |
162 | memcpy_toio(hw->regs + WOL_MAC_ADDR, dev->dev_addr, ETH_ALEN); | |
163 | ||
164 | skge_write16(hw, WOL_CTRL_STAT, | |
165 | WOL_CTL_ENA_PME_ON_MAGIC_PKT | | |
166 | WOL_CTL_ENA_MAGIC_PKT_UNIT); | |
167 | } else | |
168 | skge_write16(hw, WOL_CTRL_STAT, WOL_CTL_DEFAULT); | |
169 | ||
170 | return 0; | |
171 | } | |
172 | ||
8f3f8193 SH |
173 | /* Determine supported/advertised modes based on hardware. |
174 | * Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx | |
31b619c5 SH |
175 | */ |
176 | static u32 skge_supported_modes(const struct skge_hw *hw) | |
177 | { | |
178 | u32 supported; | |
179 | ||
5e1705dd | 180 | if (hw->copper) { |
31b619c5 SH |
181 | supported = SUPPORTED_10baseT_Half |
182 | | SUPPORTED_10baseT_Full | |
183 | | SUPPORTED_100baseT_Half | |
184 | | SUPPORTED_100baseT_Full | |
185 | | SUPPORTED_1000baseT_Half | |
186 | | SUPPORTED_1000baseT_Full | |
187 | | SUPPORTED_Autoneg| SUPPORTED_TP; | |
188 | ||
189 | if (hw->chip_id == CHIP_ID_GENESIS) | |
190 | supported &= ~(SUPPORTED_10baseT_Half | |
191 | | SUPPORTED_10baseT_Full | |
192 | | SUPPORTED_100baseT_Half | |
193 | | SUPPORTED_100baseT_Full); | |
194 | ||
195 | else if (hw->chip_id == CHIP_ID_YUKON) | |
196 | supported &= ~SUPPORTED_1000baseT_Half; | |
197 | } else | |
198 | supported = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE | |
199 | | SUPPORTED_Autoneg; | |
200 | ||
201 | return supported; | |
202 | } | |
baef58b1 SH |
203 | |
204 | static int skge_get_settings(struct net_device *dev, | |
205 | struct ethtool_cmd *ecmd) | |
206 | { | |
207 | struct skge_port *skge = netdev_priv(dev); | |
208 | struct skge_hw *hw = skge->hw; | |
209 | ||
210 | ecmd->transceiver = XCVR_INTERNAL; | |
31b619c5 | 211 | ecmd->supported = skge_supported_modes(hw); |
baef58b1 | 212 | |
5e1705dd | 213 | if (hw->copper) { |
baef58b1 SH |
214 | ecmd->port = PORT_TP; |
215 | ecmd->phy_address = hw->phy_addr; | |
31b619c5 | 216 | } else |
baef58b1 | 217 | ecmd->port = PORT_FIBRE; |
baef58b1 SH |
218 | |
219 | ecmd->advertising = skge->advertising; | |
220 | ecmd->autoneg = skge->autoneg; | |
221 | ecmd->speed = skge->speed; | |
222 | ecmd->duplex = skge->duplex; | |
223 | return 0; | |
224 | } | |
225 | ||
baef58b1 SH |
226 | static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
227 | { | |
228 | struct skge_port *skge = netdev_priv(dev); | |
229 | const struct skge_hw *hw = skge->hw; | |
31b619c5 | 230 | u32 supported = skge_supported_modes(hw); |
baef58b1 SH |
231 | |
232 | if (ecmd->autoneg == AUTONEG_ENABLE) { | |
31b619c5 SH |
233 | ecmd->advertising = supported; |
234 | skge->duplex = -1; | |
235 | skge->speed = -1; | |
baef58b1 | 236 | } else { |
31b619c5 SH |
237 | u32 setting; |
238 | ||
2c668514 | 239 | switch (ecmd->speed) { |
baef58b1 | 240 | case SPEED_1000: |
31b619c5 SH |
241 | if (ecmd->duplex == DUPLEX_FULL) |
242 | setting = SUPPORTED_1000baseT_Full; | |
243 | else if (ecmd->duplex == DUPLEX_HALF) | |
244 | setting = SUPPORTED_1000baseT_Half; | |
245 | else | |
246 | return -EINVAL; | |
baef58b1 SH |
247 | break; |
248 | case SPEED_100: | |
31b619c5 SH |
249 | if (ecmd->duplex == DUPLEX_FULL) |
250 | setting = SUPPORTED_100baseT_Full; | |
251 | else if (ecmd->duplex == DUPLEX_HALF) | |
252 | setting = SUPPORTED_100baseT_Half; | |
253 | else | |
254 | return -EINVAL; | |
255 | break; | |
256 | ||
baef58b1 | 257 | case SPEED_10: |
31b619c5 SH |
258 | if (ecmd->duplex == DUPLEX_FULL) |
259 | setting = SUPPORTED_10baseT_Full; | |
260 | else if (ecmd->duplex == DUPLEX_HALF) | |
261 | setting = SUPPORTED_10baseT_Half; | |
262 | else | |
baef58b1 SH |
263 | return -EINVAL; |
264 | break; | |
265 | default: | |
266 | return -EINVAL; | |
267 | } | |
31b619c5 SH |
268 | |
269 | if ((setting & supported) == 0) | |
270 | return -EINVAL; | |
271 | ||
272 | skge->speed = ecmd->speed; | |
273 | skge->duplex = ecmd->duplex; | |
baef58b1 SH |
274 | } |
275 | ||
276 | skge->autoneg = ecmd->autoneg; | |
baef58b1 SH |
277 | skge->advertising = ecmd->advertising; |
278 | ||
279 | if (netif_running(dev)) { | |
280 | skge_down(dev); | |
281 | skge_up(dev); | |
282 | } | |
283 | return (0); | |
284 | } | |
285 | ||
286 | static void skge_get_drvinfo(struct net_device *dev, | |
287 | struct ethtool_drvinfo *info) | |
288 | { | |
289 | struct skge_port *skge = netdev_priv(dev); | |
290 | ||
291 | strcpy(info->driver, DRV_NAME); | |
292 | strcpy(info->version, DRV_VERSION); | |
293 | strcpy(info->fw_version, "N/A"); | |
294 | strcpy(info->bus_info, pci_name(skge->hw->pdev)); | |
295 | } | |
296 | ||
297 | static const struct skge_stat { | |
298 | char name[ETH_GSTRING_LEN]; | |
299 | u16 xmac_offset; | |
300 | u16 gma_offset; | |
301 | } skge_stats[] = { | |
302 | { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI }, | |
303 | { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI }, | |
304 | ||
305 | { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK }, | |
306 | { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK }, | |
307 | { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK }, | |
308 | { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK }, | |
309 | { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK }, | |
310 | { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK }, | |
311 | { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE }, | |
312 | { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE }, | |
313 | ||
314 | { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL }, | |
315 | { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL }, | |
316 | { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL }, | |
317 | { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL }, | |
318 | { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR }, | |
319 | { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV }, | |
320 | ||
321 | { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR }, | |
322 | { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT }, | |
323 | { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG }, | |
324 | { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR }, | |
325 | { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR }, | |
326 | }; | |
327 | ||
328 | static int skge_get_stats_count(struct net_device *dev) | |
329 | { | |
330 | return ARRAY_SIZE(skge_stats); | |
331 | } | |
332 | ||
333 | static void skge_get_ethtool_stats(struct net_device *dev, | |
334 | struct ethtool_stats *stats, u64 *data) | |
335 | { | |
336 | struct skge_port *skge = netdev_priv(dev); | |
337 | ||
338 | if (skge->hw->chip_id == CHIP_ID_GENESIS) | |
339 | genesis_get_stats(skge, data); | |
340 | else | |
341 | yukon_get_stats(skge, data); | |
342 | } | |
343 | ||
344 | /* Use hardware MIB variables for critical path statistics and | |
345 | * transmit feedback not reported at interrupt. | |
346 | * Other errors are accounted for in interrupt handler. | |
347 | */ | |
348 | static struct net_device_stats *skge_get_stats(struct net_device *dev) | |
349 | { | |
350 | struct skge_port *skge = netdev_priv(dev); | |
351 | u64 data[ARRAY_SIZE(skge_stats)]; | |
352 | ||
353 | if (skge->hw->chip_id == CHIP_ID_GENESIS) | |
354 | genesis_get_stats(skge, data); | |
355 | else | |
356 | yukon_get_stats(skge, data); | |
357 | ||
358 | skge->net_stats.tx_bytes = data[0]; | |
359 | skge->net_stats.rx_bytes = data[1]; | |
360 | skge->net_stats.tx_packets = data[2] + data[4] + data[6]; | |
361 | skge->net_stats.rx_packets = data[3] + data[5] + data[7]; | |
362 | skge->net_stats.multicast = data[5] + data[7]; | |
363 | skge->net_stats.collisions = data[10]; | |
364 | skge->net_stats.tx_aborted_errors = data[12]; | |
365 | ||
366 | return &skge->net_stats; | |
367 | } | |
368 | ||
369 | static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
370 | { | |
371 | int i; | |
372 | ||
95566065 | 373 | switch (stringset) { |
baef58b1 SH |
374 | case ETH_SS_STATS: |
375 | for (i = 0; i < ARRAY_SIZE(skge_stats); i++) | |
376 | memcpy(data + i * ETH_GSTRING_LEN, | |
377 | skge_stats[i].name, ETH_GSTRING_LEN); | |
378 | break; | |
379 | } | |
380 | } | |
381 | ||
382 | static void skge_get_ring_param(struct net_device *dev, | |
383 | struct ethtool_ringparam *p) | |
384 | { | |
385 | struct skge_port *skge = netdev_priv(dev); | |
386 | ||
387 | p->rx_max_pending = MAX_RX_RING_SIZE; | |
388 | p->tx_max_pending = MAX_TX_RING_SIZE; | |
389 | p->rx_mini_max_pending = 0; | |
390 | p->rx_jumbo_max_pending = 0; | |
391 | ||
392 | p->rx_pending = skge->rx_ring.count; | |
393 | p->tx_pending = skge->tx_ring.count; | |
394 | p->rx_mini_pending = 0; | |
395 | p->rx_jumbo_pending = 0; | |
396 | } | |
397 | ||
398 | static int skge_set_ring_param(struct net_device *dev, | |
399 | struct ethtool_ringparam *p) | |
400 | { | |
401 | struct skge_port *skge = netdev_priv(dev); | |
402 | ||
403 | if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE || | |
404 | p->tx_pending == 0 || p->tx_pending > MAX_TX_RING_SIZE) | |
405 | return -EINVAL; | |
406 | ||
407 | skge->rx_ring.count = p->rx_pending; | |
408 | skge->tx_ring.count = p->tx_pending; | |
409 | ||
410 | if (netif_running(dev)) { | |
411 | skge_down(dev); | |
412 | skge_up(dev); | |
413 | } | |
414 | ||
415 | return 0; | |
416 | } | |
417 | ||
418 | static u32 skge_get_msglevel(struct net_device *netdev) | |
419 | { | |
420 | struct skge_port *skge = netdev_priv(netdev); | |
421 | return skge->msg_enable; | |
422 | } | |
423 | ||
424 | static void skge_set_msglevel(struct net_device *netdev, u32 value) | |
425 | { | |
426 | struct skge_port *skge = netdev_priv(netdev); | |
427 | skge->msg_enable = value; | |
428 | } | |
429 | ||
430 | static int skge_nway_reset(struct net_device *dev) | |
431 | { | |
432 | struct skge_port *skge = netdev_priv(dev); | |
433 | struct skge_hw *hw = skge->hw; | |
434 | int port = skge->port; | |
435 | ||
436 | if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev)) | |
437 | return -EINVAL; | |
438 | ||
439 | spin_lock_bh(&hw->phy_lock); | |
440 | if (hw->chip_id == CHIP_ID_GENESIS) { | |
441 | genesis_reset(hw, port); | |
442 | genesis_mac_init(hw, port); | |
443 | } else { | |
444 | yukon_reset(hw, port); | |
445 | yukon_init(hw, port); | |
446 | } | |
447 | spin_unlock_bh(&hw->phy_lock); | |
448 | return 0; | |
449 | } | |
450 | ||
451 | static int skge_set_sg(struct net_device *dev, u32 data) | |
452 | { | |
453 | struct skge_port *skge = netdev_priv(dev); | |
454 | struct skge_hw *hw = skge->hw; | |
455 | ||
456 | if (hw->chip_id == CHIP_ID_GENESIS && data) | |
457 | return -EOPNOTSUPP; | |
458 | return ethtool_op_set_sg(dev, data); | |
459 | } | |
460 | ||
461 | static int skge_set_tx_csum(struct net_device *dev, u32 data) | |
462 | { | |
463 | struct skge_port *skge = netdev_priv(dev); | |
464 | struct skge_hw *hw = skge->hw; | |
465 | ||
466 | if (hw->chip_id == CHIP_ID_GENESIS && data) | |
467 | return -EOPNOTSUPP; | |
468 | ||
469 | return ethtool_op_set_tx_csum(dev, data); | |
470 | } | |
471 | ||
472 | static u32 skge_get_rx_csum(struct net_device *dev) | |
473 | { | |
474 | struct skge_port *skge = netdev_priv(dev); | |
475 | ||
476 | return skge->rx_csum; | |
477 | } | |
478 | ||
479 | /* Only Yukon supports checksum offload. */ | |
480 | static int skge_set_rx_csum(struct net_device *dev, u32 data) | |
481 | { | |
482 | struct skge_port *skge = netdev_priv(dev); | |
483 | ||
484 | if (skge->hw->chip_id == CHIP_ID_GENESIS && data) | |
485 | return -EOPNOTSUPP; | |
486 | ||
487 | skge->rx_csum = data; | |
488 | return 0; | |
489 | } | |
490 | ||
baef58b1 SH |
491 | static void skge_get_pauseparam(struct net_device *dev, |
492 | struct ethtool_pauseparam *ecmd) | |
493 | { | |
494 | struct skge_port *skge = netdev_priv(dev); | |
495 | ||
496 | ecmd->tx_pause = (skge->flow_control == FLOW_MODE_LOC_SEND) | |
497 | || (skge->flow_control == FLOW_MODE_SYMMETRIC); | |
498 | ecmd->rx_pause = (skge->flow_control == FLOW_MODE_REM_SEND) | |
499 | || (skge->flow_control == FLOW_MODE_SYMMETRIC); | |
500 | ||
501 | ecmd->autoneg = skge->autoneg; | |
502 | } | |
503 | ||
504 | static int skge_set_pauseparam(struct net_device *dev, | |
505 | struct ethtool_pauseparam *ecmd) | |
506 | { | |
507 | struct skge_port *skge = netdev_priv(dev); | |
508 | ||
509 | skge->autoneg = ecmd->autoneg; | |
510 | if (ecmd->rx_pause && ecmd->tx_pause) | |
511 | skge->flow_control = FLOW_MODE_SYMMETRIC; | |
95566065 | 512 | else if (ecmd->rx_pause && !ecmd->tx_pause) |
baef58b1 | 513 | skge->flow_control = FLOW_MODE_REM_SEND; |
95566065 | 514 | else if (!ecmd->rx_pause && ecmd->tx_pause) |
baef58b1 SH |
515 | skge->flow_control = FLOW_MODE_LOC_SEND; |
516 | else | |
517 | skge->flow_control = FLOW_MODE_NONE; | |
518 | ||
519 | if (netif_running(dev)) { | |
520 | skge_down(dev); | |
521 | skge_up(dev); | |
522 | } | |
523 | return 0; | |
524 | } | |
525 | ||
526 | /* Chip internal frequency for clock calculations */ | |
527 | static inline u32 hwkhz(const struct skge_hw *hw) | |
528 | { | |
529 | if (hw->chip_id == CHIP_ID_GENESIS) | |
530 | return 53215; /* or: 53.125 MHz */ | |
baef58b1 SH |
531 | else |
532 | return 78215; /* or: 78.125 MHz */ | |
533 | } | |
534 | ||
8f3f8193 | 535 | /* Chip HZ to microseconds */ |
baef58b1 SH |
536 | static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks) |
537 | { | |
538 | return (ticks * 1000) / hwkhz(hw); | |
539 | } | |
540 | ||
8f3f8193 | 541 | /* Microseconds to chip HZ */ |
baef58b1 SH |
542 | static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec) |
543 | { | |
544 | return hwkhz(hw) * usec / 1000; | |
545 | } | |
546 | ||
547 | static int skge_get_coalesce(struct net_device *dev, | |
548 | struct ethtool_coalesce *ecmd) | |
549 | { | |
550 | struct skge_port *skge = netdev_priv(dev); | |
551 | struct skge_hw *hw = skge->hw; | |
552 | int port = skge->port; | |
553 | ||
554 | ecmd->rx_coalesce_usecs = 0; | |
555 | ecmd->tx_coalesce_usecs = 0; | |
556 | ||
557 | if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) { | |
558 | u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI)); | |
559 | u32 msk = skge_read32(hw, B2_IRQM_MSK); | |
560 | ||
561 | if (msk & rxirqmask[port]) | |
562 | ecmd->rx_coalesce_usecs = delay; | |
563 | if (msk & txirqmask[port]) | |
564 | ecmd->tx_coalesce_usecs = delay; | |
565 | } | |
566 | ||
567 | return 0; | |
568 | } | |
569 | ||
570 | /* Note: interrupt timer is per board, but can turn on/off per port */ | |
571 | static int skge_set_coalesce(struct net_device *dev, | |
572 | struct ethtool_coalesce *ecmd) | |
573 | { | |
574 | struct skge_port *skge = netdev_priv(dev); | |
575 | struct skge_hw *hw = skge->hw; | |
576 | int port = skge->port; | |
577 | u32 msk = skge_read32(hw, B2_IRQM_MSK); | |
578 | u32 delay = 25; | |
579 | ||
580 | if (ecmd->rx_coalesce_usecs == 0) | |
581 | msk &= ~rxirqmask[port]; | |
582 | else if (ecmd->rx_coalesce_usecs < 25 || | |
583 | ecmd->rx_coalesce_usecs > 33333) | |
584 | return -EINVAL; | |
585 | else { | |
586 | msk |= rxirqmask[port]; | |
587 | delay = ecmd->rx_coalesce_usecs; | |
588 | } | |
589 | ||
590 | if (ecmd->tx_coalesce_usecs == 0) | |
591 | msk &= ~txirqmask[port]; | |
592 | else if (ecmd->tx_coalesce_usecs < 25 || | |
593 | ecmd->tx_coalesce_usecs > 33333) | |
594 | return -EINVAL; | |
595 | else { | |
596 | msk |= txirqmask[port]; | |
597 | delay = min(delay, ecmd->rx_coalesce_usecs); | |
598 | } | |
599 | ||
600 | skge_write32(hw, B2_IRQM_MSK, msk); | |
601 | if (msk == 0) | |
602 | skge_write32(hw, B2_IRQM_CTRL, TIM_STOP); | |
603 | else { | |
604 | skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay)); | |
605 | skge_write32(hw, B2_IRQM_CTRL, TIM_START); | |
606 | } | |
607 | return 0; | |
608 | } | |
609 | ||
6abebb53 SH |
610 | enum led_mode { LED_MODE_OFF, LED_MODE_ON, LED_MODE_TST }; |
611 | static void skge_led(struct skge_port *skge, enum led_mode mode) | |
baef58b1 | 612 | { |
6abebb53 SH |
613 | struct skge_hw *hw = skge->hw; |
614 | int port = skge->port; | |
615 | ||
616 | spin_lock_bh(&hw->phy_lock); | |
baef58b1 | 617 | if (hw->chip_id == CHIP_ID_GENESIS) { |
6abebb53 SH |
618 | switch (mode) { |
619 | case LED_MODE_OFF: | |
620 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF); | |
621 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); | |
622 | skge_write32(hw, SK_REG(port, RX_LED_VAL), 0); | |
623 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF); | |
624 | break; | |
baef58b1 | 625 | |
6abebb53 SH |
626 | case LED_MODE_ON: |
627 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON); | |
628 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON); | |
baef58b1 | 629 | |
6abebb53 SH |
630 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); |
631 | skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START); | |
baef58b1 | 632 | |
6abebb53 | 633 | break; |
baef58b1 | 634 | |
6abebb53 SH |
635 | case LED_MODE_TST: |
636 | skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON); | |
637 | skge_write32(hw, SK_REG(port, RX_LED_VAL), 100); | |
638 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); | |
baef58b1 | 639 | |
6abebb53 SH |
640 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON); |
641 | break; | |
642 | } | |
baef58b1 | 643 | } else { |
6abebb53 SH |
644 | switch (mode) { |
645 | case LED_MODE_OFF: | |
646 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); | |
647 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, | |
648 | PHY_M_LED_MO_DUP(MO_LED_OFF) | | |
649 | PHY_M_LED_MO_10(MO_LED_OFF) | | |
650 | PHY_M_LED_MO_100(MO_LED_OFF) | | |
651 | PHY_M_LED_MO_1000(MO_LED_OFF) | | |
652 | PHY_M_LED_MO_RX(MO_LED_OFF)); | |
653 | break; | |
654 | case LED_MODE_ON: | |
655 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, | |
656 | PHY_M_LED_PULS_DUR(PULS_170MS) | | |
657 | PHY_M_LED_BLINK_RT(BLINK_84MS) | | |
658 | PHY_M_LEDC_TX_CTRL | | |
659 | PHY_M_LEDC_DP_CTRL); | |
46a60f2d | 660 | |
6abebb53 SH |
661 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, |
662 | PHY_M_LED_MO_RX(MO_LED_OFF) | | |
663 | (skge->speed == SPEED_100 ? | |
664 | PHY_M_LED_MO_100(MO_LED_ON) : 0)); | |
665 | break; | |
666 | case LED_MODE_TST: | |
667 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); | |
668 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, | |
669 | PHY_M_LED_MO_DUP(MO_LED_ON) | | |
670 | PHY_M_LED_MO_10(MO_LED_ON) | | |
671 | PHY_M_LED_MO_100(MO_LED_ON) | | |
672 | PHY_M_LED_MO_1000(MO_LED_ON) | | |
673 | PHY_M_LED_MO_RX(MO_LED_ON)); | |
674 | } | |
baef58b1 | 675 | } |
4ff6ac05 | 676 | spin_unlock_bh(&hw->phy_lock); |
baef58b1 SH |
677 | } |
678 | ||
679 | /* blink LED's for finding board */ | |
680 | static int skge_phys_id(struct net_device *dev, u32 data) | |
681 | { | |
682 | struct skge_port *skge = netdev_priv(dev); | |
6abebb53 SH |
683 | unsigned long ms; |
684 | enum led_mode mode = LED_MODE_TST; | |
baef58b1 | 685 | |
95566065 | 686 | if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ)) |
6abebb53 SH |
687 | ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT / HZ) * 1000; |
688 | else | |
689 | ms = data * 1000; | |
baef58b1 | 690 | |
6abebb53 SH |
691 | while (ms > 0) { |
692 | skge_led(skge, mode); | |
693 | mode ^= LED_MODE_TST; | |
baef58b1 | 694 | |
6abebb53 SH |
695 | if (msleep_interruptible(BLINK_MS)) |
696 | break; | |
697 | ms -= BLINK_MS; | |
698 | } | |
baef58b1 | 699 | |
6abebb53 SH |
700 | /* back to regular LED state */ |
701 | skge_led(skge, netif_running(dev) ? LED_MODE_ON : LED_MODE_OFF); | |
baef58b1 SH |
702 | |
703 | return 0; | |
704 | } | |
705 | ||
706 | static struct ethtool_ops skge_ethtool_ops = { | |
707 | .get_settings = skge_get_settings, | |
708 | .set_settings = skge_set_settings, | |
709 | .get_drvinfo = skge_get_drvinfo, | |
710 | .get_regs_len = skge_get_regs_len, | |
711 | .get_regs = skge_get_regs, | |
712 | .get_wol = skge_get_wol, | |
713 | .set_wol = skge_set_wol, | |
714 | .get_msglevel = skge_get_msglevel, | |
715 | .set_msglevel = skge_set_msglevel, | |
716 | .nway_reset = skge_nway_reset, | |
717 | .get_link = ethtool_op_get_link, | |
718 | .get_ringparam = skge_get_ring_param, | |
719 | .set_ringparam = skge_set_ring_param, | |
720 | .get_pauseparam = skge_get_pauseparam, | |
721 | .set_pauseparam = skge_set_pauseparam, | |
722 | .get_coalesce = skge_get_coalesce, | |
723 | .set_coalesce = skge_set_coalesce, | |
baef58b1 SH |
724 | .get_sg = ethtool_op_get_sg, |
725 | .set_sg = skge_set_sg, | |
726 | .get_tx_csum = ethtool_op_get_tx_csum, | |
727 | .set_tx_csum = skge_set_tx_csum, | |
728 | .get_rx_csum = skge_get_rx_csum, | |
729 | .set_rx_csum = skge_set_rx_csum, | |
730 | .get_strings = skge_get_strings, | |
731 | .phys_id = skge_phys_id, | |
732 | .get_stats_count = skge_get_stats_count, | |
733 | .get_ethtool_stats = skge_get_ethtool_stats, | |
56230d53 | 734 | .get_perm_addr = ethtool_op_get_perm_addr, |
baef58b1 SH |
735 | }; |
736 | ||
737 | /* | |
738 | * Allocate ring elements and chain them together | |
739 | * One-to-one association of board descriptors with ring elements | |
740 | */ | |
741 | static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u64 base) | |
742 | { | |
743 | struct skge_tx_desc *d; | |
744 | struct skge_element *e; | |
745 | int i; | |
746 | ||
747 | ring->start = kmalloc(sizeof(*e)*ring->count, GFP_KERNEL); | |
748 | if (!ring->start) | |
749 | return -ENOMEM; | |
750 | ||
751 | for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) { | |
752 | e->desc = d; | |
19a33d4e | 753 | e->skb = NULL; |
baef58b1 SH |
754 | if (i == ring->count - 1) { |
755 | e->next = ring->start; | |
756 | d->next_offset = base; | |
757 | } else { | |
758 | e->next = e + 1; | |
759 | d->next_offset = base + (i+1) * sizeof(*d); | |
760 | } | |
761 | } | |
762 | ring->to_use = ring->to_clean = ring->start; | |
763 | ||
764 | return 0; | |
765 | } | |
766 | ||
19a33d4e SH |
767 | /* Allocate and setup a new buffer for receiving */ |
768 | static void skge_rx_setup(struct skge_port *skge, struct skge_element *e, | |
769 | struct sk_buff *skb, unsigned int bufsize) | |
770 | { | |
771 | struct skge_rx_desc *rd = e->desc; | |
772 | u64 map; | |
baef58b1 SH |
773 | |
774 | map = pci_map_single(skge->hw->pdev, skb->data, bufsize, | |
775 | PCI_DMA_FROMDEVICE); | |
776 | ||
777 | rd->dma_lo = map; | |
778 | rd->dma_hi = map >> 32; | |
779 | e->skb = skb; | |
780 | rd->csum1_start = ETH_HLEN; | |
781 | rd->csum2_start = ETH_HLEN; | |
782 | rd->csum1 = 0; | |
783 | rd->csum2 = 0; | |
784 | ||
785 | wmb(); | |
786 | ||
787 | rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize; | |
788 | pci_unmap_addr_set(e, mapaddr, map); | |
789 | pci_unmap_len_set(e, maplen, bufsize); | |
baef58b1 SH |
790 | } |
791 | ||
19a33d4e SH |
792 | /* Resume receiving using existing skb, |
793 | * Note: DMA address is not changed by chip. | |
794 | * MTU not changed while receiver active. | |
795 | */ | |
796 | static void skge_rx_reuse(struct skge_element *e, unsigned int size) | |
797 | { | |
798 | struct skge_rx_desc *rd = e->desc; | |
799 | ||
800 | rd->csum2 = 0; | |
801 | rd->csum2_start = ETH_HLEN; | |
802 | ||
803 | wmb(); | |
804 | ||
805 | rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | size; | |
806 | } | |
807 | ||
808 | ||
809 | /* Free all buffers in receive ring, assumes receiver stopped */ | |
baef58b1 SH |
810 | static void skge_rx_clean(struct skge_port *skge) |
811 | { | |
812 | struct skge_hw *hw = skge->hw; | |
813 | struct skge_ring *ring = &skge->rx_ring; | |
814 | struct skge_element *e; | |
815 | ||
19a33d4e SH |
816 | e = ring->start; |
817 | do { | |
baef58b1 SH |
818 | struct skge_rx_desc *rd = e->desc; |
819 | rd->control = 0; | |
19a33d4e SH |
820 | if (e->skb) { |
821 | pci_unmap_single(hw->pdev, | |
822 | pci_unmap_addr(e, mapaddr), | |
823 | pci_unmap_len(e, maplen), | |
824 | PCI_DMA_FROMDEVICE); | |
825 | dev_kfree_skb(e->skb); | |
826 | e->skb = NULL; | |
827 | } | |
828 | } while ((e = e->next) != ring->start); | |
baef58b1 SH |
829 | } |
830 | ||
19a33d4e | 831 | |
baef58b1 | 832 | /* Allocate buffers for receive ring |
19a33d4e | 833 | * For receive: to_clean is next received frame. |
baef58b1 SH |
834 | */ |
835 | static int skge_rx_fill(struct skge_port *skge) | |
836 | { | |
837 | struct skge_ring *ring = &skge->rx_ring; | |
838 | struct skge_element *e; | |
baef58b1 | 839 | |
19a33d4e SH |
840 | e = ring->start; |
841 | do { | |
383181ac | 842 | struct sk_buff *skb; |
baef58b1 | 843 | |
383181ac | 844 | skb = dev_alloc_skb(skge->rx_buf_size + NET_IP_ALIGN); |
19a33d4e SH |
845 | if (!skb) |
846 | return -ENOMEM; | |
847 | ||
383181ac SH |
848 | skb_reserve(skb, NET_IP_ALIGN); |
849 | skge_rx_setup(skge, e, skb, skge->rx_buf_size); | |
19a33d4e | 850 | } while ( (e = e->next) != ring->start); |
baef58b1 | 851 | |
19a33d4e SH |
852 | ring->to_clean = ring->start; |
853 | return 0; | |
baef58b1 SH |
854 | } |
855 | ||
856 | static void skge_link_up(struct skge_port *skge) | |
857 | { | |
46a60f2d | 858 | skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), |
54cfb5aa SH |
859 | LED_BLK_OFF|LED_SYNC_OFF|LED_ON); |
860 | ||
baef58b1 SH |
861 | netif_carrier_on(skge->netdev); |
862 | if (skge->tx_avail > MAX_SKB_FRAGS + 1) | |
863 | netif_wake_queue(skge->netdev); | |
864 | ||
865 | if (netif_msg_link(skge)) | |
866 | printk(KERN_INFO PFX | |
867 | "%s: Link is up at %d Mbps, %s duplex, flow control %s\n", | |
868 | skge->netdev->name, skge->speed, | |
869 | skge->duplex == DUPLEX_FULL ? "full" : "half", | |
870 | (skge->flow_control == FLOW_MODE_NONE) ? "none" : | |
871 | (skge->flow_control == FLOW_MODE_LOC_SEND) ? "tx only" : | |
872 | (skge->flow_control == FLOW_MODE_REM_SEND) ? "rx only" : | |
873 | (skge->flow_control == FLOW_MODE_SYMMETRIC) ? "tx and rx" : | |
874 | "unknown"); | |
875 | } | |
876 | ||
877 | static void skge_link_down(struct skge_port *skge) | |
878 | { | |
54cfb5aa | 879 | skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF); |
baef58b1 SH |
880 | netif_carrier_off(skge->netdev); |
881 | netif_stop_queue(skge->netdev); | |
882 | ||
883 | if (netif_msg_link(skge)) | |
884 | printk(KERN_INFO PFX "%s: Link is down.\n", skge->netdev->name); | |
885 | } | |
886 | ||
2cd8e5d3 | 887 | static int __xm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val) |
baef58b1 SH |
888 | { |
889 | int i; | |
baef58b1 | 890 | |
6b0c1480 | 891 | xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); |
2cd8e5d3 | 892 | xm_read16(hw, port, XM_PHY_DATA); |
baef58b1 | 893 | |
89bf5f23 SH |
894 | /* Need to wait for external PHY */ |
895 | for (i = 0; i < PHY_RETRIES; i++) { | |
896 | udelay(1); | |
2cd8e5d3 | 897 | if (xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_RDY) |
89bf5f23 | 898 | goto ready; |
baef58b1 SH |
899 | } |
900 | ||
2cd8e5d3 | 901 | return -ETIMEDOUT; |
89bf5f23 | 902 | ready: |
2cd8e5d3 | 903 | *val = xm_read16(hw, port, XM_PHY_DATA); |
89bf5f23 | 904 | |
2cd8e5d3 SH |
905 | return 0; |
906 | } | |
907 | ||
908 | static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg) | |
909 | { | |
910 | u16 v = 0; | |
911 | if (__xm_phy_read(hw, port, reg, &v)) | |
912 | printk(KERN_WARNING PFX "%s: phy read timed out\n", | |
913 | hw->dev[port]->name); | |
baef58b1 SH |
914 | return v; |
915 | } | |
916 | ||
2cd8e5d3 | 917 | static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) |
baef58b1 SH |
918 | { |
919 | int i; | |
920 | ||
6b0c1480 | 921 | xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); |
baef58b1 | 922 | for (i = 0; i < PHY_RETRIES; i++) { |
6b0c1480 | 923 | if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) |
baef58b1 | 924 | goto ready; |
89bf5f23 | 925 | udelay(1); |
baef58b1 | 926 | } |
2cd8e5d3 | 927 | return -EIO; |
baef58b1 SH |
928 | |
929 | ready: | |
6b0c1480 | 930 | xm_write16(hw, port, XM_PHY_DATA, val); |
2cd8e5d3 | 931 | return 0; |
baef58b1 SH |
932 | } |
933 | ||
934 | static void genesis_init(struct skge_hw *hw) | |
935 | { | |
936 | /* set blink source counter */ | |
937 | skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100); | |
938 | skge_write8(hw, B2_BSC_CTRL, BSC_START); | |
939 | ||
940 | /* configure mac arbiter */ | |
941 | skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR); | |
942 | ||
943 | /* configure mac arbiter timeout values */ | |
944 | skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53); | |
945 | skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53); | |
946 | skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53); | |
947 | skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53); | |
948 | ||
949 | skge_write8(hw, B3_MA_RCINI_RX1, 0); | |
950 | skge_write8(hw, B3_MA_RCINI_RX2, 0); | |
951 | skge_write8(hw, B3_MA_RCINI_TX1, 0); | |
952 | skge_write8(hw, B3_MA_RCINI_TX2, 0); | |
953 | ||
954 | /* configure packet arbiter timeout */ | |
955 | skge_write16(hw, B3_PA_CTRL, PA_RST_CLR); | |
956 | skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX); | |
957 | skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX); | |
958 | skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX); | |
959 | skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX); | |
960 | } | |
961 | ||
962 | static void genesis_reset(struct skge_hw *hw, int port) | |
963 | { | |
45bada65 | 964 | const u8 zero[8] = { 0 }; |
baef58b1 | 965 | |
46a60f2d SH |
966 | skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); |
967 | ||
baef58b1 | 968 | /* reset the statistics module */ |
6b0c1480 SH |
969 | xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT); |
970 | xm_write16(hw, port, XM_IMSK, 0xffff); /* disable XMAC IRQs */ | |
971 | xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */ | |
972 | xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */ | |
973 | xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */ | |
baef58b1 | 974 | |
89bf5f23 SH |
975 | /* disable Broadcom PHY IRQ */ |
976 | xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff); | |
baef58b1 | 977 | |
45bada65 | 978 | xm_outhash(hw, port, XM_HSM, zero); |
baef58b1 SH |
979 | } |
980 | ||
981 | ||
45bada65 SH |
982 | /* Convert mode to MII values */ |
983 | static const u16 phy_pause_map[] = { | |
984 | [FLOW_MODE_NONE] = 0, | |
985 | [FLOW_MODE_LOC_SEND] = PHY_AN_PAUSE_ASYM, | |
986 | [FLOW_MODE_SYMMETRIC] = PHY_AN_PAUSE_CAP, | |
987 | [FLOW_MODE_REM_SEND] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM, | |
988 | }; | |
989 | ||
990 | ||
991 | /* Check status of Broadcom phy link */ | |
992 | static void bcom_check_link(struct skge_hw *hw, int port) | |
baef58b1 | 993 | { |
45bada65 SH |
994 | struct net_device *dev = hw->dev[port]; |
995 | struct skge_port *skge = netdev_priv(dev); | |
996 | u16 status; | |
997 | ||
998 | /* read twice because of latch */ | |
999 | (void) xm_phy_read(hw, port, PHY_BCOM_STAT); | |
1000 | status = xm_phy_read(hw, port, PHY_BCOM_STAT); | |
1001 | ||
45bada65 SH |
1002 | if ((status & PHY_ST_LSYNC) == 0) { |
1003 | u16 cmd = xm_read16(hw, port, XM_MMU_CMD); | |
1004 | cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX); | |
1005 | xm_write16(hw, port, XM_MMU_CMD, cmd); | |
1006 | /* dummy read to ensure writing */ | |
1007 | (void) xm_read16(hw, port, XM_MMU_CMD); | |
1008 | ||
1009 | if (netif_carrier_ok(dev)) | |
1010 | skge_link_down(skge); | |
1011 | } else { | |
1012 | if (skge->autoneg == AUTONEG_ENABLE && | |
1013 | (status & PHY_ST_AN_OVER)) { | |
1014 | u16 lpa = xm_phy_read(hw, port, PHY_BCOM_AUNE_LP); | |
1015 | u16 aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT); | |
1016 | ||
1017 | if (lpa & PHY_B_AN_RF) { | |
1018 | printk(KERN_NOTICE PFX "%s: remote fault\n", | |
1019 | dev->name); | |
1020 | return; | |
1021 | } | |
1022 | ||
1023 | /* Check Duplex mismatch */ | |
2c668514 | 1024 | switch (aux & PHY_B_AS_AN_RES_MSK) { |
45bada65 SH |
1025 | case PHY_B_RES_1000FD: |
1026 | skge->duplex = DUPLEX_FULL; | |
1027 | break; | |
1028 | case PHY_B_RES_1000HD: | |
1029 | skge->duplex = DUPLEX_HALF; | |
1030 | break; | |
1031 | default: | |
1032 | printk(KERN_NOTICE PFX "%s: duplex mismatch\n", | |
1033 | dev->name); | |
1034 | return; | |
1035 | } | |
1036 | ||
1037 | ||
1038 | /* We are using IEEE 802.3z/D5.0 Table 37-4 */ | |
1039 | switch (aux & PHY_B_AS_PAUSE_MSK) { | |
1040 | case PHY_B_AS_PAUSE_MSK: | |
1041 | skge->flow_control = FLOW_MODE_SYMMETRIC; | |
1042 | break; | |
1043 | case PHY_B_AS_PRR: | |
1044 | skge->flow_control = FLOW_MODE_REM_SEND; | |
1045 | break; | |
1046 | case PHY_B_AS_PRT: | |
1047 | skge->flow_control = FLOW_MODE_LOC_SEND; | |
1048 | break; | |
1049 | default: | |
1050 | skge->flow_control = FLOW_MODE_NONE; | |
1051 | } | |
1052 | ||
1053 | skge->speed = SPEED_1000; | |
1054 | } | |
1055 | ||
1056 | if (!netif_carrier_ok(dev)) | |
1057 | genesis_link_up(skge); | |
1058 | } | |
1059 | } | |
1060 | ||
1061 | /* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional | |
1062 | * Phy on for 100 or 10Mbit operation | |
1063 | */ | |
1064 | static void bcom_phy_init(struct skge_port *skge, int jumbo) | |
1065 | { | |
1066 | struct skge_hw *hw = skge->hw; | |
1067 | int port = skge->port; | |
baef58b1 | 1068 | int i; |
45bada65 | 1069 | u16 id1, r, ext, ctl; |
baef58b1 SH |
1070 | |
1071 | /* magic workaround patterns for Broadcom */ | |
1072 | static const struct { | |
1073 | u16 reg; | |
1074 | u16 val; | |
1075 | } A1hack[] = { | |
1076 | { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 }, | |
1077 | { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 }, | |
1078 | { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 }, | |
1079 | { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 }, | |
1080 | }, C0hack[] = { | |
1081 | { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 }, | |
1082 | { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 }, | |
1083 | }; | |
1084 | ||
45bada65 SH |
1085 | /* read Id from external PHY (all have the same address) */ |
1086 | id1 = xm_phy_read(hw, port, PHY_XMAC_ID1); | |
1087 | ||
1088 | /* Optimize MDIO transfer by suppressing preamble. */ | |
1089 | r = xm_read16(hw, port, XM_MMU_CMD); | |
1090 | r |= XM_MMU_NO_PRE; | |
1091 | xm_write16(hw, port, XM_MMU_CMD,r); | |
1092 | ||
2c668514 | 1093 | switch (id1) { |
45bada65 SH |
1094 | case PHY_BCOM_ID1_C0: |
1095 | /* | |
1096 | * Workaround BCOM Errata for the C0 type. | |
1097 | * Write magic patterns to reserved registers. | |
1098 | */ | |
1099 | for (i = 0; i < ARRAY_SIZE(C0hack); i++) | |
1100 | xm_phy_write(hw, port, | |
1101 | C0hack[i].reg, C0hack[i].val); | |
1102 | ||
1103 | break; | |
1104 | case PHY_BCOM_ID1_A1: | |
1105 | /* | |
1106 | * Workaround BCOM Errata for the A1 type. | |
1107 | * Write magic patterns to reserved registers. | |
1108 | */ | |
1109 | for (i = 0; i < ARRAY_SIZE(A1hack); i++) | |
1110 | xm_phy_write(hw, port, | |
1111 | A1hack[i].reg, A1hack[i].val); | |
1112 | break; | |
1113 | } | |
1114 | ||
1115 | /* | |
1116 | * Workaround BCOM Errata (#10523) for all BCom PHYs. | |
1117 | * Disable Power Management after reset. | |
1118 | */ | |
1119 | r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL); | |
1120 | r |= PHY_B_AC_DIS_PM; | |
1121 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r); | |
1122 | ||
1123 | /* Dummy read */ | |
1124 | xm_read16(hw, port, XM_ISRC); | |
1125 | ||
1126 | ext = PHY_B_PEC_EN_LTR; /* enable tx led */ | |
1127 | ctl = PHY_CT_SP1000; /* always 1000mbit */ | |
1128 | ||
1129 | if (skge->autoneg == AUTONEG_ENABLE) { | |
1130 | /* | |
1131 | * Workaround BCOM Errata #1 for the C5 type. | |
1132 | * 1000Base-T Link Acquisition Failure in Slave Mode | |
1133 | * Set Repeater/DTE bit 10 of the 1000Base-T Control Register | |
1134 | */ | |
1135 | u16 adv = PHY_B_1000C_RD; | |
1136 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1137 | adv |= PHY_B_1000C_AHD; | |
1138 | if (skge->advertising & ADVERTISED_1000baseT_Full) | |
1139 | adv |= PHY_B_1000C_AFD; | |
1140 | xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, adv); | |
1141 | ||
1142 | ctl |= PHY_CT_ANE | PHY_CT_RE_CFG; | |
1143 | } else { | |
1144 | if (skge->duplex == DUPLEX_FULL) | |
1145 | ctl |= PHY_CT_DUP_MD; | |
1146 | /* Force to slave */ | |
1147 | xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, PHY_B_1000C_MSE); | |
1148 | } | |
1149 | ||
1150 | /* Set autonegotiation pause parameters */ | |
1151 | xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV, | |
1152 | phy_pause_map[skge->flow_control] | PHY_AN_CSMA); | |
1153 | ||
1154 | /* Handle Jumbo frames */ | |
1155 | if (jumbo) { | |
1156 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, | |
1157 | PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK); | |
1158 | ||
1159 | ext |= PHY_B_PEC_HIGH_LA; | |
1160 | ||
1161 | } | |
1162 | ||
1163 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ext); | |
1164 | xm_phy_write(hw, port, PHY_BCOM_CTRL, ctl); | |
1165 | ||
8f3f8193 | 1166 | /* Use link status change interrupt */ |
45bada65 SH |
1167 | xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); |
1168 | ||
1169 | bcom_check_link(hw, port); | |
1170 | } | |
1171 | ||
1172 | static void genesis_mac_init(struct skge_hw *hw, int port) | |
1173 | { | |
1174 | struct net_device *dev = hw->dev[port]; | |
1175 | struct skge_port *skge = netdev_priv(dev); | |
1176 | int jumbo = hw->dev[port]->mtu > ETH_DATA_LEN; | |
1177 | int i; | |
1178 | u32 r; | |
1179 | const u8 zero[6] = { 0 }; | |
1180 | ||
1181 | /* Clear MIB counters */ | |
1182 | xm_write16(hw, port, XM_STAT_CMD, | |
1183 | XM_SC_CLR_RXC | XM_SC_CLR_TXC); | |
1184 | /* Clear two times according to Errata #3 */ | |
1185 | xm_write16(hw, port, XM_STAT_CMD, | |
1186 | XM_SC_CLR_RXC | XM_SC_CLR_TXC); | |
baef58b1 | 1187 | |
baef58b1 | 1188 | /* Unreset the XMAC. */ |
6b0c1480 | 1189 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST); |
baef58b1 SH |
1190 | |
1191 | /* | |
1192 | * Perform additional initialization for external PHYs, | |
1193 | * namely for the 1000baseTX cards that use the XMAC's | |
1194 | * GMII mode. | |
1195 | */ | |
45bada65 | 1196 | /* Take external Phy out of reset */ |
89bf5f23 SH |
1197 | r = skge_read32(hw, B2_GP_IO); |
1198 | if (port == 0) | |
1199 | r |= GP_DIR_0|GP_IO_0; | |
1200 | else | |
1201 | r |= GP_DIR_2|GP_IO_2; | |
1202 | ||
1203 | skge_write32(hw, B2_GP_IO, r); | |
1204 | skge_read32(hw, B2_GP_IO); | |
1205 | ||
8f3f8193 | 1206 | /* Enable GMII interface */ |
89bf5f23 SH |
1207 | xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD); |
1208 | ||
45bada65 | 1209 | bcom_phy_init(skge, jumbo); |
89bf5f23 | 1210 | |
45bada65 SH |
1211 | /* Set Station Address */ |
1212 | xm_outaddr(hw, port, XM_SA, dev->dev_addr); | |
89bf5f23 | 1213 | |
45bada65 SH |
1214 | /* We don't use match addresses so clear */ |
1215 | for (i = 1; i < 16; i++) | |
1216 | xm_outaddr(hw, port, XM_EXM(i), zero); | |
1217 | ||
1218 | /* configure Rx High Water Mark (XM_RX_HI_WM) */ | |
1219 | xm_write16(hw, port, XM_RX_HI_WM, 1450); | |
1220 | ||
1221 | /* We don't need the FCS appended to the packet. */ | |
1222 | r = XM_RX_LENERR_OK | XM_RX_STRIP_FCS; | |
1223 | if (jumbo) | |
1224 | r |= XM_RX_BIG_PK_OK; | |
89bf5f23 | 1225 | |
45bada65 | 1226 | if (skge->duplex == DUPLEX_HALF) { |
89bf5f23 | 1227 | /* |
45bada65 SH |
1228 | * If in manual half duplex mode the other side might be in |
1229 | * full duplex mode, so ignore if a carrier extension is not seen | |
1230 | * on frames received | |
89bf5f23 | 1231 | */ |
45bada65 | 1232 | r |= XM_RX_DIS_CEXT; |
baef58b1 | 1233 | } |
45bada65 | 1234 | xm_write16(hw, port, XM_RX_CMD, r); |
baef58b1 | 1235 | |
baef58b1 SH |
1236 | |
1237 | /* We want short frames padded to 60 bytes. */ | |
45bada65 SH |
1238 | xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD); |
1239 | ||
1240 | /* | |
1241 | * Bump up the transmit threshold. This helps hold off transmit | |
1242 | * underruns when we're blasting traffic from both ports at once. | |
1243 | */ | |
1244 | xm_write16(hw, port, XM_TX_THR, 512); | |
baef58b1 SH |
1245 | |
1246 | /* | |
1247 | * Enable the reception of all error frames. This is is | |
1248 | * a necessary evil due to the design of the XMAC. The | |
1249 | * XMAC's receive FIFO is only 8K in size, however jumbo | |
1250 | * frames can be up to 9000 bytes in length. When bad | |
1251 | * frame filtering is enabled, the XMAC's RX FIFO operates | |
1252 | * in 'store and forward' mode. For this to work, the | |
1253 | * entire frame has to fit into the FIFO, but that means | |
1254 | * that jumbo frames larger than 8192 bytes will be | |
1255 | * truncated. Disabling all bad frame filtering causes | |
1256 | * the RX FIFO to operate in streaming mode, in which | |
8f3f8193 | 1257 | * case the XMAC will start transferring frames out of the |
baef58b1 SH |
1258 | * RX FIFO as soon as the FIFO threshold is reached. |
1259 | */ | |
45bada65 | 1260 | xm_write32(hw, port, XM_MODE, XM_DEF_MODE); |
baef58b1 | 1261 | |
baef58b1 SH |
1262 | |
1263 | /* | |
45bada65 SH |
1264 | * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK) |
1265 | * - Enable all bits excepting 'Octets Rx OK Low CntOv' | |
1266 | * and 'Octets Rx OK Hi Cnt Ov'. | |
baef58b1 | 1267 | */ |
45bada65 SH |
1268 | xm_write32(hw, port, XM_RX_EV_MSK, XMR_DEF_MSK); |
1269 | ||
1270 | /* | |
1271 | * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK) | |
1272 | * - Enable all bits excepting 'Octets Tx OK Low CntOv' | |
1273 | * and 'Octets Tx OK Hi Cnt Ov'. | |
1274 | */ | |
1275 | xm_write32(hw, port, XM_TX_EV_MSK, XMT_DEF_MSK); | |
baef58b1 SH |
1276 | |
1277 | /* Configure MAC arbiter */ | |
1278 | skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR); | |
1279 | ||
1280 | /* configure timeout values */ | |
1281 | skge_write8(hw, B3_MA_TOINI_RX1, 72); | |
1282 | skge_write8(hw, B3_MA_TOINI_RX2, 72); | |
1283 | skge_write8(hw, B3_MA_TOINI_TX1, 72); | |
1284 | skge_write8(hw, B3_MA_TOINI_TX2, 72); | |
1285 | ||
1286 | skge_write8(hw, B3_MA_RCINI_RX1, 0); | |
1287 | skge_write8(hw, B3_MA_RCINI_RX2, 0); | |
1288 | skge_write8(hw, B3_MA_RCINI_TX1, 0); | |
1289 | skge_write8(hw, B3_MA_RCINI_TX2, 0); | |
1290 | ||
1291 | /* Configure Rx MAC FIFO */ | |
6b0c1480 SH |
1292 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR); |
1293 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT); | |
1294 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD); | |
baef58b1 SH |
1295 | |
1296 | /* Configure Tx MAC FIFO */ | |
6b0c1480 SH |
1297 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR); |
1298 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF); | |
1299 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD); | |
baef58b1 | 1300 | |
45bada65 | 1301 | if (jumbo) { |
baef58b1 | 1302 | /* Enable frame flushing if jumbo frames used */ |
6b0c1480 | 1303 | skge_write16(hw, SK_REG(port,RX_MFF_CTRL1), MFF_ENA_FLUSH); |
baef58b1 SH |
1304 | } else { |
1305 | /* enable timeout timers if normal frames */ | |
1306 | skge_write16(hw, B3_PA_CTRL, | |
45bada65 | 1307 | (port == 0) ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2); |
baef58b1 | 1308 | } |
baef58b1 SH |
1309 | } |
1310 | ||
1311 | static void genesis_stop(struct skge_port *skge) | |
1312 | { | |
1313 | struct skge_hw *hw = skge->hw; | |
1314 | int port = skge->port; | |
89bf5f23 | 1315 | u32 reg; |
baef58b1 | 1316 | |
46a60f2d SH |
1317 | genesis_reset(hw, port); |
1318 | ||
baef58b1 SH |
1319 | /* Clear Tx packet arbiter timeout IRQ */ |
1320 | skge_write16(hw, B3_PA_CTRL, | |
1321 | port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2); | |
1322 | ||
1323 | /* | |
8f3f8193 | 1324 | * If the transfer sticks at the MAC the STOP command will not |
baef58b1 SH |
1325 | * terminate if we don't flush the XMAC's transmit FIFO ! |
1326 | */ | |
6b0c1480 SH |
1327 | xm_write32(hw, port, XM_MODE, |
1328 | xm_read32(hw, port, XM_MODE)|XM_MD_FTF); | |
baef58b1 SH |
1329 | |
1330 | ||
1331 | /* Reset the MAC */ | |
6b0c1480 | 1332 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST); |
baef58b1 SH |
1333 | |
1334 | /* For external PHYs there must be special handling */ | |
89bf5f23 SH |
1335 | reg = skge_read32(hw, B2_GP_IO); |
1336 | if (port == 0) { | |
1337 | reg |= GP_DIR_0; | |
1338 | reg &= ~GP_IO_0; | |
1339 | } else { | |
1340 | reg |= GP_DIR_2; | |
1341 | reg &= ~GP_IO_2; | |
baef58b1 | 1342 | } |
89bf5f23 SH |
1343 | skge_write32(hw, B2_GP_IO, reg); |
1344 | skge_read32(hw, B2_GP_IO); | |
baef58b1 | 1345 | |
6b0c1480 SH |
1346 | xm_write16(hw, port, XM_MMU_CMD, |
1347 | xm_read16(hw, port, XM_MMU_CMD) | |
baef58b1 SH |
1348 | & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX)); |
1349 | ||
6b0c1480 | 1350 | xm_read16(hw, port, XM_MMU_CMD); |
baef58b1 SH |
1351 | } |
1352 | ||
1353 | ||
1354 | static void genesis_get_stats(struct skge_port *skge, u64 *data) | |
1355 | { | |
1356 | struct skge_hw *hw = skge->hw; | |
1357 | int port = skge->port; | |
1358 | int i; | |
1359 | unsigned long timeout = jiffies + HZ; | |
1360 | ||
6b0c1480 | 1361 | xm_write16(hw, port, |
baef58b1 SH |
1362 | XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC); |
1363 | ||
1364 | /* wait for update to complete */ | |
6b0c1480 | 1365 | while (xm_read16(hw, port, XM_STAT_CMD) |
baef58b1 SH |
1366 | & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) { |
1367 | if (time_after(jiffies, timeout)) | |
1368 | break; | |
1369 | udelay(10); | |
1370 | } | |
1371 | ||
1372 | /* special case for 64 bit octet counter */ | |
6b0c1480 SH |
1373 | data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32 |
1374 | | xm_read32(hw, port, XM_TXO_OK_LO); | |
1375 | data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32 | |
1376 | | xm_read32(hw, port, XM_RXO_OK_LO); | |
baef58b1 SH |
1377 | |
1378 | for (i = 2; i < ARRAY_SIZE(skge_stats); i++) | |
6b0c1480 | 1379 | data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset); |
baef58b1 SH |
1380 | } |
1381 | ||
1382 | static void genesis_mac_intr(struct skge_hw *hw, int port) | |
1383 | { | |
1384 | struct skge_port *skge = netdev_priv(hw->dev[port]); | |
6b0c1480 | 1385 | u16 status = xm_read16(hw, port, XM_ISRC); |
baef58b1 | 1386 | |
7e676d91 SH |
1387 | if (netif_msg_intr(skge)) |
1388 | printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n", | |
1389 | skge->netdev->name, status); | |
baef58b1 SH |
1390 | |
1391 | if (status & XM_IS_TXF_UR) { | |
6b0c1480 | 1392 | xm_write32(hw, port, XM_MODE, XM_MD_FTF); |
baef58b1 SH |
1393 | ++skge->net_stats.tx_fifo_errors; |
1394 | } | |
1395 | if (status & XM_IS_RXF_OV) { | |
6b0c1480 | 1396 | xm_write32(hw, port, XM_MODE, XM_MD_FRF); |
baef58b1 SH |
1397 | ++skge->net_stats.rx_fifo_errors; |
1398 | } | |
1399 | } | |
1400 | ||
baef58b1 SH |
1401 | static void genesis_link_up(struct skge_port *skge) |
1402 | { | |
1403 | struct skge_hw *hw = skge->hw; | |
1404 | int port = skge->port; | |
1405 | u16 cmd; | |
1406 | u32 mode, msk; | |
1407 | ||
6b0c1480 | 1408 | cmd = xm_read16(hw, port, XM_MMU_CMD); |
baef58b1 SH |
1409 | |
1410 | /* | |
1411 | * enabling pause frame reception is required for 1000BT | |
1412 | * because the XMAC is not reset if the link is going down | |
1413 | */ | |
1414 | if (skge->flow_control == FLOW_MODE_NONE || | |
1415 | skge->flow_control == FLOW_MODE_LOC_SEND) | |
7e676d91 | 1416 | /* Disable Pause Frame Reception */ |
baef58b1 SH |
1417 | cmd |= XM_MMU_IGN_PF; |
1418 | else | |
1419 | /* Enable Pause Frame Reception */ | |
1420 | cmd &= ~XM_MMU_IGN_PF; | |
1421 | ||
6b0c1480 | 1422 | xm_write16(hw, port, XM_MMU_CMD, cmd); |
baef58b1 | 1423 | |
6b0c1480 | 1424 | mode = xm_read32(hw, port, XM_MODE); |
baef58b1 SH |
1425 | if (skge->flow_control == FLOW_MODE_SYMMETRIC || |
1426 | skge->flow_control == FLOW_MODE_LOC_SEND) { | |
1427 | /* | |
1428 | * Configure Pause Frame Generation | |
1429 | * Use internal and external Pause Frame Generation. | |
1430 | * Sending pause frames is edge triggered. | |
1431 | * Send a Pause frame with the maximum pause time if | |
1432 | * internal oder external FIFO full condition occurs. | |
1433 | * Send a zero pause time frame to re-start transmission. | |
1434 | */ | |
1435 | /* XM_PAUSE_DA = '010000C28001' (default) */ | |
1436 | /* XM_MAC_PTIME = 0xffff (maximum) */ | |
1437 | /* remember this value is defined in big endian (!) */ | |
6b0c1480 | 1438 | xm_write16(hw, port, XM_MAC_PTIME, 0xffff); |
baef58b1 SH |
1439 | |
1440 | mode |= XM_PAUSE_MODE; | |
6b0c1480 | 1441 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE); |
baef58b1 SH |
1442 | } else { |
1443 | /* | |
1444 | * disable pause frame generation is required for 1000BT | |
1445 | * because the XMAC is not reset if the link is going down | |
1446 | */ | |
1447 | /* Disable Pause Mode in Mode Register */ | |
1448 | mode &= ~XM_PAUSE_MODE; | |
1449 | ||
6b0c1480 | 1450 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE); |
baef58b1 SH |
1451 | } |
1452 | ||
6b0c1480 | 1453 | xm_write32(hw, port, XM_MODE, mode); |
baef58b1 SH |
1454 | |
1455 | msk = XM_DEF_MSK; | |
89bf5f23 SH |
1456 | /* disable GP0 interrupt bit for external Phy */ |
1457 | msk |= XM_IS_INP_ASS; | |
baef58b1 | 1458 | |
6b0c1480 SH |
1459 | xm_write16(hw, port, XM_IMSK, msk); |
1460 | xm_read16(hw, port, XM_ISRC); | |
baef58b1 SH |
1461 | |
1462 | /* get MMU Command Reg. */ | |
6b0c1480 | 1463 | cmd = xm_read16(hw, port, XM_MMU_CMD); |
89bf5f23 | 1464 | if (skge->duplex == DUPLEX_FULL) |
baef58b1 SH |
1465 | cmd |= XM_MMU_GMII_FD; |
1466 | ||
89bf5f23 SH |
1467 | /* |
1468 | * Workaround BCOM Errata (#10523) for all BCom Phys | |
1469 | * Enable Power Management after link up | |
1470 | */ | |
1471 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, | |
1472 | xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL) | |
1473 | & ~PHY_B_AC_DIS_PM); | |
1474 | xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); | |
baef58b1 SH |
1475 | |
1476 | /* enable Rx/Tx */ | |
6b0c1480 | 1477 | xm_write16(hw, port, XM_MMU_CMD, |
baef58b1 SH |
1478 | cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX); |
1479 | skge_link_up(skge); | |
1480 | } | |
1481 | ||
1482 | ||
45bada65 | 1483 | static inline void bcom_phy_intr(struct skge_port *skge) |
baef58b1 SH |
1484 | { |
1485 | struct skge_hw *hw = skge->hw; | |
1486 | int port = skge->port; | |
45bada65 SH |
1487 | u16 isrc; |
1488 | ||
1489 | isrc = xm_phy_read(hw, port, PHY_BCOM_INT_STAT); | |
7e676d91 SH |
1490 | if (netif_msg_intr(skge)) |
1491 | printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x\n", | |
1492 | skge->netdev->name, isrc); | |
baef58b1 | 1493 | |
45bada65 SH |
1494 | if (isrc & PHY_B_IS_PSE) |
1495 | printk(KERN_ERR PFX "%s: uncorrectable pair swap error\n", | |
1496 | hw->dev[port]->name); | |
baef58b1 SH |
1497 | |
1498 | /* Workaround BCom Errata: | |
1499 | * enable and disable loopback mode if "NO HCD" occurs. | |
1500 | */ | |
45bada65 | 1501 | if (isrc & PHY_B_IS_NO_HDCL) { |
6b0c1480 SH |
1502 | u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL); |
1503 | xm_phy_write(hw, port, PHY_BCOM_CTRL, | |
baef58b1 | 1504 | ctrl | PHY_CT_LOOP); |
6b0c1480 | 1505 | xm_phy_write(hw, port, PHY_BCOM_CTRL, |
baef58b1 SH |
1506 | ctrl & ~PHY_CT_LOOP); |
1507 | } | |
1508 | ||
45bada65 SH |
1509 | if (isrc & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) |
1510 | bcom_check_link(hw, port); | |
baef58b1 | 1511 | |
baef58b1 SH |
1512 | } |
1513 | ||
2cd8e5d3 SH |
1514 | static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) |
1515 | { | |
1516 | int i; | |
1517 | ||
1518 | gma_write16(hw, port, GM_SMI_DATA, val); | |
1519 | gma_write16(hw, port, GM_SMI_CTRL, | |
1520 | GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg)); | |
1521 | for (i = 0; i < PHY_RETRIES; i++) { | |
1522 | udelay(1); | |
1523 | ||
1524 | if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY)) | |
1525 | return 0; | |
1526 | } | |
1527 | ||
1528 | printk(KERN_WARNING PFX "%s: phy write timeout\n", | |
1529 | hw->dev[port]->name); | |
1530 | return -EIO; | |
1531 | } | |
1532 | ||
1533 | static int __gm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val) | |
1534 | { | |
1535 | int i; | |
1536 | ||
1537 | gma_write16(hw, port, GM_SMI_CTRL, | |
1538 | GM_SMI_CT_PHY_AD(hw->phy_addr) | |
1539 | | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD); | |
1540 | ||
1541 | for (i = 0; i < PHY_RETRIES; i++) { | |
1542 | udelay(1); | |
1543 | if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) | |
1544 | goto ready; | |
1545 | } | |
1546 | ||
1547 | return -ETIMEDOUT; | |
1548 | ready: | |
1549 | *val = gma_read16(hw, port, GM_SMI_DATA); | |
1550 | return 0; | |
1551 | } | |
1552 | ||
1553 | static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg) | |
1554 | { | |
1555 | u16 v = 0; | |
1556 | if (__gm_phy_read(hw, port, reg, &v)) | |
1557 | printk(KERN_WARNING PFX "%s: phy read timeout\n", | |
1558 | hw->dev[port]->name); | |
1559 | return v; | |
1560 | } | |
1561 | ||
8f3f8193 | 1562 | /* Marvell Phy Initialization */ |
baef58b1 SH |
1563 | static void yukon_init(struct skge_hw *hw, int port) |
1564 | { | |
1565 | struct skge_port *skge = netdev_priv(hw->dev[port]); | |
1566 | u16 ctrl, ct1000, adv; | |
baef58b1 | 1567 | |
baef58b1 | 1568 | if (skge->autoneg == AUTONEG_ENABLE) { |
6b0c1480 | 1569 | u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL); |
baef58b1 SH |
1570 | |
1571 | ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK | | |
1572 | PHY_M_EC_MAC_S_MSK); | |
1573 | ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ); | |
1574 | ||
c506a509 | 1575 | ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1); |
baef58b1 | 1576 | |
6b0c1480 | 1577 | gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl); |
baef58b1 SH |
1578 | } |
1579 | ||
6b0c1480 | 1580 | ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); |
baef58b1 SH |
1581 | if (skge->autoneg == AUTONEG_DISABLE) |
1582 | ctrl &= ~PHY_CT_ANE; | |
1583 | ||
1584 | ctrl |= PHY_CT_RESET; | |
6b0c1480 | 1585 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); |
baef58b1 SH |
1586 | |
1587 | ctrl = 0; | |
1588 | ct1000 = 0; | |
b18f2091 | 1589 | adv = PHY_AN_CSMA; |
baef58b1 SH |
1590 | |
1591 | if (skge->autoneg == AUTONEG_ENABLE) { | |
5e1705dd | 1592 | if (hw->copper) { |
baef58b1 SH |
1593 | if (skge->advertising & ADVERTISED_1000baseT_Full) |
1594 | ct1000 |= PHY_M_1000C_AFD; | |
1595 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1596 | ct1000 |= PHY_M_1000C_AHD; | |
1597 | if (skge->advertising & ADVERTISED_100baseT_Full) | |
1598 | adv |= PHY_M_AN_100_FD; | |
1599 | if (skge->advertising & ADVERTISED_100baseT_Half) | |
1600 | adv |= PHY_M_AN_100_HD; | |
1601 | if (skge->advertising & ADVERTISED_10baseT_Full) | |
1602 | adv |= PHY_M_AN_10_FD; | |
1603 | if (skge->advertising & ADVERTISED_10baseT_Half) | |
1604 | adv |= PHY_M_AN_10_HD; | |
45bada65 | 1605 | } else /* special defines for FIBER (88E1011S only) */ |
baef58b1 SH |
1606 | adv |= PHY_M_AN_1000X_AHD | PHY_M_AN_1000X_AFD; |
1607 | ||
45bada65 SH |
1608 | /* Set Flow-control capabilities */ |
1609 | adv |= phy_pause_map[skge->flow_control]; | |
1610 | ||
baef58b1 SH |
1611 | /* Restart Auto-negotiation */ |
1612 | ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG; | |
1613 | } else { | |
1614 | /* forced speed/duplex settings */ | |
1615 | ct1000 = PHY_M_1000C_MSE; | |
1616 | ||
1617 | if (skge->duplex == DUPLEX_FULL) | |
1618 | ctrl |= PHY_CT_DUP_MD; | |
1619 | ||
1620 | switch (skge->speed) { | |
1621 | case SPEED_1000: | |
1622 | ctrl |= PHY_CT_SP1000; | |
1623 | break; | |
1624 | case SPEED_100: | |
1625 | ctrl |= PHY_CT_SP100; | |
1626 | break; | |
1627 | } | |
1628 | ||
1629 | ctrl |= PHY_CT_RESET; | |
1630 | } | |
1631 | ||
c506a509 | 1632 | gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000); |
baef58b1 | 1633 | |
6b0c1480 SH |
1634 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv); |
1635 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
baef58b1 | 1636 | |
baef58b1 SH |
1637 | /* Enable phy interrupt on autonegotiation complete (or link up) */ |
1638 | if (skge->autoneg == AUTONEG_ENABLE) | |
4cde06ed | 1639 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_MSK); |
baef58b1 | 1640 | else |
4cde06ed | 1641 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK); |
baef58b1 SH |
1642 | } |
1643 | ||
1644 | static void yukon_reset(struct skge_hw *hw, int port) | |
1645 | { | |
6b0c1480 SH |
1646 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */ |
1647 | gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */ | |
1648 | gma_write16(hw, port, GM_MC_ADDR_H2, 0); | |
1649 | gma_write16(hw, port, GM_MC_ADDR_H3, 0); | |
1650 | gma_write16(hw, port, GM_MC_ADDR_H4, 0); | |
baef58b1 | 1651 | |
6b0c1480 SH |
1652 | gma_write16(hw, port, GM_RX_CTRL, |
1653 | gma_read16(hw, port, GM_RX_CTRL) | |
baef58b1 SH |
1654 | | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); |
1655 | } | |
1656 | ||
c8868611 SH |
1657 | /* Apparently, early versions of Yukon-Lite had wrong chip_id? */ |
1658 | static int is_yukon_lite_a0(struct skge_hw *hw) | |
1659 | { | |
1660 | u32 reg; | |
1661 | int ret; | |
1662 | ||
1663 | if (hw->chip_id != CHIP_ID_YUKON) | |
1664 | return 0; | |
1665 | ||
1666 | reg = skge_read32(hw, B2_FAR); | |
1667 | skge_write8(hw, B2_FAR + 3, 0xff); | |
1668 | ret = (skge_read8(hw, B2_FAR + 3) != 0); | |
1669 | skge_write32(hw, B2_FAR, reg); | |
1670 | return ret; | |
1671 | } | |
1672 | ||
baef58b1 SH |
1673 | static void yukon_mac_init(struct skge_hw *hw, int port) |
1674 | { | |
1675 | struct skge_port *skge = netdev_priv(hw->dev[port]); | |
1676 | int i; | |
1677 | u32 reg; | |
1678 | const u8 *addr = hw->dev[port]->dev_addr; | |
1679 | ||
1680 | /* WA code for COMA mode -- set PHY reset */ | |
1681 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
46a60f2d SH |
1682 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) { |
1683 | reg = skge_read32(hw, B2_GP_IO); | |
1684 | reg |= GP_DIR_9 | GP_IO_9; | |
1685 | skge_write32(hw, B2_GP_IO, reg); | |
1686 | } | |
baef58b1 SH |
1687 | |
1688 | /* hard reset */ | |
6b0c1480 SH |
1689 | skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); |
1690 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); | |
baef58b1 SH |
1691 | |
1692 | /* WA code for COMA mode -- clear PHY reset */ | |
1693 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
46a60f2d SH |
1694 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) { |
1695 | reg = skge_read32(hw, B2_GP_IO); | |
1696 | reg |= GP_DIR_9; | |
1697 | reg &= ~GP_IO_9; | |
1698 | skge_write32(hw, B2_GP_IO, reg); | |
1699 | } | |
baef58b1 SH |
1700 | |
1701 | /* Set hardware config mode */ | |
1702 | reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP | | |
1703 | GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE; | |
5e1705dd | 1704 | reg |= hw->copper ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB; |
baef58b1 SH |
1705 | |
1706 | /* Clear GMC reset */ | |
6b0c1480 SH |
1707 | skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET); |
1708 | skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR); | |
1709 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR); | |
baef58b1 SH |
1710 | if (skge->autoneg == AUTONEG_DISABLE) { |
1711 | reg = GM_GPCR_AU_ALL_DIS; | |
6b0c1480 SH |
1712 | gma_write16(hw, port, GM_GP_CTRL, |
1713 | gma_read16(hw, port, GM_GP_CTRL) | reg); | |
baef58b1 SH |
1714 | |
1715 | switch (skge->speed) { | |
1716 | case SPEED_1000: | |
1717 | reg |= GM_GPCR_SPEED_1000; | |
1718 | /* fallthru */ | |
1719 | case SPEED_100: | |
1720 | reg |= GM_GPCR_SPEED_100; | |
1721 | } | |
1722 | ||
1723 | if (skge->duplex == DUPLEX_FULL) | |
1724 | reg |= GM_GPCR_DUP_FULL; | |
1725 | } else | |
1726 | reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL; | |
1727 | switch (skge->flow_control) { | |
1728 | case FLOW_MODE_NONE: | |
6b0c1480 | 1729 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); |
baef58b1 SH |
1730 | reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; |
1731 | break; | |
1732 | case FLOW_MODE_LOC_SEND: | |
1733 | /* disable Rx flow-control */ | |
1734 | reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; | |
1735 | } | |
1736 | ||
6b0c1480 | 1737 | gma_write16(hw, port, GM_GP_CTRL, reg); |
46a60f2d | 1738 | skge_read16(hw, SK_REG(port, GMAC_IRQ_SRC)); |
baef58b1 | 1739 | |
baef58b1 | 1740 | yukon_init(hw, port); |
baef58b1 SH |
1741 | |
1742 | /* MIB clear */ | |
6b0c1480 SH |
1743 | reg = gma_read16(hw, port, GM_PHY_ADDR); |
1744 | gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR); | |
baef58b1 SH |
1745 | |
1746 | for (i = 0; i < GM_MIB_CNT_SIZE; i++) | |
6b0c1480 SH |
1747 | gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i); |
1748 | gma_write16(hw, port, GM_PHY_ADDR, reg); | |
baef58b1 SH |
1749 | |
1750 | /* transmit control */ | |
6b0c1480 | 1751 | gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF)); |
baef58b1 SH |
1752 | |
1753 | /* receive control reg: unicast + multicast + no FCS */ | |
6b0c1480 | 1754 | gma_write16(hw, port, GM_RX_CTRL, |
baef58b1 SH |
1755 | GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA); |
1756 | ||
1757 | /* transmit flow control */ | |
6b0c1480 | 1758 | gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff); |
baef58b1 SH |
1759 | |
1760 | /* transmit parameter */ | |
6b0c1480 | 1761 | gma_write16(hw, port, GM_TX_PARAM, |
baef58b1 SH |
1762 | TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) | |
1763 | TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) | | |
1764 | TX_IPG_JAM_DATA(TX_IPG_JAM_DEF)); | |
1765 | ||
1766 | /* serial mode register */ | |
1767 | reg = GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); | |
1768 | if (hw->dev[port]->mtu > 1500) | |
1769 | reg |= GM_SMOD_JUMBO_ENA; | |
1770 | ||
6b0c1480 | 1771 | gma_write16(hw, port, GM_SERIAL_MODE, reg); |
baef58b1 SH |
1772 | |
1773 | /* physical address: used for pause frames */ | |
6b0c1480 | 1774 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr); |
baef58b1 | 1775 | /* virtual address for data */ |
6b0c1480 | 1776 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr); |
baef58b1 SH |
1777 | |
1778 | /* enable interrupt mask for counter overflows */ | |
6b0c1480 SH |
1779 | gma_write16(hw, port, GM_TX_IRQ_MSK, 0); |
1780 | gma_write16(hw, port, GM_RX_IRQ_MSK, 0); | |
1781 | gma_write16(hw, port, GM_TR_IRQ_MSK, 0); | |
baef58b1 SH |
1782 | |
1783 | /* Initialize Mac Fifo */ | |
1784 | ||
1785 | /* Configure Rx MAC FIFO */ | |
6b0c1480 | 1786 | skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK); |
baef58b1 | 1787 | reg = GMF_OPER_ON | GMF_RX_F_FL_ON; |
c8868611 SH |
1788 | |
1789 | /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */ | |
1790 | if (is_yukon_lite_a0(hw)) | |
baef58b1 | 1791 | reg &= ~GMF_RX_F_FL_ON; |
c8868611 | 1792 | |
6b0c1480 SH |
1793 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR); |
1794 | skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg); | |
c5923081 SH |
1795 | /* |
1796 | * because Pause Packet Truncation in GMAC is not working | |
1797 | * we have to increase the Flush Threshold to 64 bytes | |
1798 | * in order to flush pause packets in Rx FIFO on Yukon-1 | |
1799 | */ | |
1800 | skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1); | |
baef58b1 SH |
1801 | |
1802 | /* Configure Tx MAC FIFO */ | |
6b0c1480 SH |
1803 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR); |
1804 | skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON); | |
baef58b1 SH |
1805 | } |
1806 | ||
355ec572 SH |
1807 | /* Go into power down mode */ |
1808 | static void yukon_suspend(struct skge_hw *hw, int port) | |
1809 | { | |
1810 | u16 ctrl; | |
1811 | ||
1812 | ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
1813 | ctrl |= PHY_M_PC_POL_R_DIS; | |
1814 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); | |
1815 | ||
1816 | ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); | |
1817 | ctrl |= PHY_CT_RESET; | |
1818 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
1819 | ||
1820 | /* switch IEEE compatible power down mode on */ | |
1821 | ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); | |
1822 | ctrl |= PHY_CT_PDOWN; | |
1823 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
1824 | } | |
1825 | ||
baef58b1 SH |
1826 | static void yukon_stop(struct skge_port *skge) |
1827 | { | |
1828 | struct skge_hw *hw = skge->hw; | |
1829 | int port = skge->port; | |
1830 | ||
46a60f2d SH |
1831 | skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); |
1832 | yukon_reset(hw, port); | |
baef58b1 | 1833 | |
6b0c1480 SH |
1834 | gma_write16(hw, port, GM_GP_CTRL, |
1835 | gma_read16(hw, port, GM_GP_CTRL) | |
0eedf4ac | 1836 | & ~(GM_GPCR_TX_ENA|GM_GPCR_RX_ENA)); |
6b0c1480 | 1837 | gma_read16(hw, port, GM_GP_CTRL); |
baef58b1 | 1838 | |
355ec572 | 1839 | yukon_suspend(hw, port); |
46a60f2d | 1840 | |
baef58b1 | 1841 | /* set GPHY Control reset */ |
46a60f2d SH |
1842 | skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); |
1843 | skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); | |
baef58b1 SH |
1844 | } |
1845 | ||
1846 | static void yukon_get_stats(struct skge_port *skge, u64 *data) | |
1847 | { | |
1848 | struct skge_hw *hw = skge->hw; | |
1849 | int port = skge->port; | |
1850 | int i; | |
1851 | ||
6b0c1480 SH |
1852 | data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32 |
1853 | | gma_read32(hw, port, GM_TXO_OK_LO); | |
1854 | data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32 | |
1855 | | gma_read32(hw, port, GM_RXO_OK_LO); | |
baef58b1 SH |
1856 | |
1857 | for (i = 2; i < ARRAY_SIZE(skge_stats); i++) | |
6b0c1480 | 1858 | data[i] = gma_read32(hw, port, |
baef58b1 SH |
1859 | skge_stats[i].gma_offset); |
1860 | } | |
1861 | ||
1862 | static void yukon_mac_intr(struct skge_hw *hw, int port) | |
1863 | { | |
7e676d91 SH |
1864 | struct net_device *dev = hw->dev[port]; |
1865 | struct skge_port *skge = netdev_priv(dev); | |
6b0c1480 | 1866 | u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC)); |
baef58b1 | 1867 | |
7e676d91 SH |
1868 | if (netif_msg_intr(skge)) |
1869 | printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n", | |
1870 | dev->name, status); | |
1871 | ||
baef58b1 SH |
1872 | if (status & GM_IS_RX_FF_OR) { |
1873 | ++skge->net_stats.rx_fifo_errors; | |
d8a09943 | 1874 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO); |
baef58b1 | 1875 | } |
d8a09943 | 1876 | |
baef58b1 SH |
1877 | if (status & GM_IS_TX_FF_UR) { |
1878 | ++skge->net_stats.tx_fifo_errors; | |
d8a09943 | 1879 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU); |
baef58b1 SH |
1880 | } |
1881 | ||
1882 | } | |
1883 | ||
1884 | static u16 yukon_speed(const struct skge_hw *hw, u16 aux) | |
1885 | { | |
95566065 | 1886 | switch (aux & PHY_M_PS_SPEED_MSK) { |
baef58b1 SH |
1887 | case PHY_M_PS_SPEED_1000: |
1888 | return SPEED_1000; | |
1889 | case PHY_M_PS_SPEED_100: | |
1890 | return SPEED_100; | |
1891 | default: | |
1892 | return SPEED_10; | |
1893 | } | |
1894 | } | |
1895 | ||
1896 | static void yukon_link_up(struct skge_port *skge) | |
1897 | { | |
1898 | struct skge_hw *hw = skge->hw; | |
1899 | int port = skge->port; | |
1900 | u16 reg; | |
1901 | ||
baef58b1 | 1902 | /* Enable Transmit FIFO Underrun */ |
46a60f2d | 1903 | skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK); |
baef58b1 | 1904 | |
6b0c1480 | 1905 | reg = gma_read16(hw, port, GM_GP_CTRL); |
baef58b1 SH |
1906 | if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE) |
1907 | reg |= GM_GPCR_DUP_FULL; | |
1908 | ||
1909 | /* enable Rx/Tx */ | |
1910 | reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; | |
6b0c1480 | 1911 | gma_write16(hw, port, GM_GP_CTRL, reg); |
baef58b1 | 1912 | |
4cde06ed | 1913 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK); |
baef58b1 SH |
1914 | skge_link_up(skge); |
1915 | } | |
1916 | ||
1917 | static void yukon_link_down(struct skge_port *skge) | |
1918 | { | |
1919 | struct skge_hw *hw = skge->hw; | |
1920 | int port = skge->port; | |
d8a09943 | 1921 | u16 ctrl; |
baef58b1 | 1922 | |
6b0c1480 | 1923 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0); |
d8a09943 SH |
1924 | |
1925 | ctrl = gma_read16(hw, port, GM_GP_CTRL); | |
1926 | ctrl &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA); | |
1927 | gma_write16(hw, port, GM_GP_CTRL, ctrl); | |
baef58b1 | 1928 | |
c506a509 | 1929 | if (skge->flow_control == FLOW_MODE_REM_SEND) { |
baef58b1 | 1930 | /* restore Asymmetric Pause bit */ |
6b0c1480 SH |
1931 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, |
1932 | gm_phy_read(hw, port, | |
baef58b1 SH |
1933 | PHY_MARV_AUNE_ADV) |
1934 | | PHY_M_AN_ASP); | |
1935 | ||
1936 | } | |
1937 | ||
1938 | yukon_reset(hw, port); | |
1939 | skge_link_down(skge); | |
1940 | ||
1941 | yukon_init(hw, port); | |
1942 | } | |
1943 | ||
1944 | static void yukon_phy_intr(struct skge_port *skge) | |
1945 | { | |
1946 | struct skge_hw *hw = skge->hw; | |
1947 | int port = skge->port; | |
1948 | const char *reason = NULL; | |
1949 | u16 istatus, phystat; | |
1950 | ||
6b0c1480 SH |
1951 | istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT); |
1952 | phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT); | |
7e676d91 SH |
1953 | |
1954 | if (netif_msg_intr(skge)) | |
1955 | printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x 0x%x\n", | |
1956 | skge->netdev->name, istatus, phystat); | |
baef58b1 SH |
1957 | |
1958 | if (istatus & PHY_M_IS_AN_COMPL) { | |
6b0c1480 | 1959 | if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP) |
baef58b1 SH |
1960 | & PHY_M_AN_RF) { |
1961 | reason = "remote fault"; | |
1962 | goto failed; | |
1963 | } | |
1964 | ||
c506a509 | 1965 | if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) { |
baef58b1 SH |
1966 | reason = "master/slave fault"; |
1967 | goto failed; | |
1968 | } | |
1969 | ||
1970 | if (!(phystat & PHY_M_PS_SPDUP_RES)) { | |
1971 | reason = "speed/duplex"; | |
1972 | goto failed; | |
1973 | } | |
1974 | ||
1975 | skge->duplex = (phystat & PHY_M_PS_FULL_DUP) | |
1976 | ? DUPLEX_FULL : DUPLEX_HALF; | |
1977 | skge->speed = yukon_speed(hw, phystat); | |
1978 | ||
baef58b1 SH |
1979 | /* We are using IEEE 802.3z/D5.0 Table 37-4 */ |
1980 | switch (phystat & PHY_M_PS_PAUSE_MSK) { | |
1981 | case PHY_M_PS_PAUSE_MSK: | |
1982 | skge->flow_control = FLOW_MODE_SYMMETRIC; | |
1983 | break; | |
1984 | case PHY_M_PS_RX_P_EN: | |
1985 | skge->flow_control = FLOW_MODE_REM_SEND; | |
1986 | break; | |
1987 | case PHY_M_PS_TX_P_EN: | |
1988 | skge->flow_control = FLOW_MODE_LOC_SEND; | |
1989 | break; | |
1990 | default: | |
1991 | skge->flow_control = FLOW_MODE_NONE; | |
1992 | } | |
1993 | ||
1994 | if (skge->flow_control == FLOW_MODE_NONE || | |
1995 | (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF)) | |
6b0c1480 | 1996 | skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); |
baef58b1 | 1997 | else |
6b0c1480 | 1998 | skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); |
baef58b1 SH |
1999 | yukon_link_up(skge); |
2000 | return; | |
2001 | } | |
2002 | ||
2003 | if (istatus & PHY_M_IS_LSP_CHANGE) | |
2004 | skge->speed = yukon_speed(hw, phystat); | |
2005 | ||
2006 | if (istatus & PHY_M_IS_DUP_CHANGE) | |
2007 | skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; | |
2008 | if (istatus & PHY_M_IS_LST_CHANGE) { | |
2009 | if (phystat & PHY_M_PS_LINK_UP) | |
2010 | yukon_link_up(skge); | |
2011 | else | |
2012 | yukon_link_down(skge); | |
2013 | } | |
2014 | return; | |
2015 | failed: | |
2016 | printk(KERN_ERR PFX "%s: autonegotiation failed (%s)\n", | |
2017 | skge->netdev->name, reason); | |
2018 | ||
2019 | /* XXX restart autonegotiation? */ | |
2020 | } | |
2021 | ||
2cd8e5d3 SH |
2022 | /* Basic MII support */ |
2023 | static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
2024 | { | |
2025 | struct mii_ioctl_data *data = if_mii(ifr); | |
2026 | struct skge_port *skge = netdev_priv(dev); | |
2027 | struct skge_hw *hw = skge->hw; | |
2028 | int err = -EOPNOTSUPP; | |
2029 | ||
2030 | if (!netif_running(dev)) | |
2031 | return -ENODEV; /* Phy still in reset */ | |
2032 | ||
2033 | switch(cmd) { | |
2034 | case SIOCGMIIPHY: | |
2035 | data->phy_id = hw->phy_addr; | |
2036 | ||
2037 | /* fallthru */ | |
2038 | case SIOCGMIIREG: { | |
2039 | u16 val = 0; | |
2040 | spin_lock_bh(&hw->phy_lock); | |
2041 | if (hw->chip_id == CHIP_ID_GENESIS) | |
2042 | err = __xm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val); | |
2043 | else | |
2044 | err = __gm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val); | |
2045 | spin_unlock_bh(&hw->phy_lock); | |
2046 | data->val_out = val; | |
2047 | break; | |
2048 | } | |
2049 | ||
2050 | case SIOCSMIIREG: | |
2051 | if (!capable(CAP_NET_ADMIN)) | |
2052 | return -EPERM; | |
2053 | ||
2054 | spin_lock_bh(&hw->phy_lock); | |
2055 | if (hw->chip_id == CHIP_ID_GENESIS) | |
2056 | err = xm_phy_write(hw, skge->port, data->reg_num & 0x1f, | |
2057 | data->val_in); | |
2058 | else | |
2059 | err = gm_phy_write(hw, skge->port, data->reg_num & 0x1f, | |
2060 | data->val_in); | |
2061 | spin_unlock_bh(&hw->phy_lock); | |
2062 | break; | |
2063 | } | |
2064 | return err; | |
2065 | } | |
2066 | ||
baef58b1 SH |
2067 | static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len) |
2068 | { | |
2069 | u32 end; | |
2070 | ||
2071 | start /= 8; | |
2072 | len /= 8; | |
2073 | end = start + len - 1; | |
2074 | ||
2075 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR); | |
2076 | skge_write32(hw, RB_ADDR(q, RB_START), start); | |
2077 | skge_write32(hw, RB_ADDR(q, RB_WP), start); | |
2078 | skge_write32(hw, RB_ADDR(q, RB_RP), start); | |
2079 | skge_write32(hw, RB_ADDR(q, RB_END), end); | |
2080 | ||
2081 | if (q == Q_R1 || q == Q_R2) { | |
2082 | /* Set thresholds on receive queue's */ | |
2083 | skge_write32(hw, RB_ADDR(q, RB_RX_UTPP), | |
2084 | start + (2*len)/3); | |
2085 | skge_write32(hw, RB_ADDR(q, RB_RX_LTPP), | |
2086 | start + (len/3)); | |
2087 | } else { | |
2088 | /* Enable store & forward on Tx queue's because | |
2089 | * Tx FIFO is only 4K on Genesis and 1K on Yukon | |
2090 | */ | |
2091 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD); | |
2092 | } | |
2093 | ||
2094 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD); | |
2095 | } | |
2096 | ||
2097 | /* Setup Bus Memory Interface */ | |
2098 | static void skge_qset(struct skge_port *skge, u16 q, | |
2099 | const struct skge_element *e) | |
2100 | { | |
2101 | struct skge_hw *hw = skge->hw; | |
2102 | u32 watermark = 0x600; | |
2103 | u64 base = skge->dma + (e->desc - skge->mem); | |
2104 | ||
2105 | /* optimization to reduce window on 32bit/33mhz */ | |
2106 | if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0) | |
2107 | watermark /= 2; | |
2108 | ||
2109 | skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET); | |
2110 | skge_write32(hw, Q_ADDR(q, Q_F), watermark); | |
2111 | skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32)); | |
2112 | skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base); | |
2113 | } | |
2114 | ||
2115 | static int skge_up(struct net_device *dev) | |
2116 | { | |
2117 | struct skge_port *skge = netdev_priv(dev); | |
2118 | struct skge_hw *hw = skge->hw; | |
2119 | int port = skge->port; | |
2120 | u32 chunk, ram_addr; | |
2121 | size_t rx_size, tx_size; | |
2122 | int err; | |
2123 | ||
2124 | if (netif_msg_ifup(skge)) | |
2125 | printk(KERN_INFO PFX "%s: enabling interface\n", dev->name); | |
2126 | ||
19a33d4e SH |
2127 | if (dev->mtu > RX_BUF_SIZE) |
2128 | skge->rx_buf_size = dev->mtu + ETH_HLEN + NET_IP_ALIGN; | |
2129 | else | |
2130 | skge->rx_buf_size = RX_BUF_SIZE; | |
2131 | ||
2132 | ||
baef58b1 SH |
2133 | rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc); |
2134 | tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc); | |
2135 | skge->mem_size = tx_size + rx_size; | |
2136 | skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma); | |
2137 | if (!skge->mem) | |
2138 | return -ENOMEM; | |
2139 | ||
2140 | memset(skge->mem, 0, skge->mem_size); | |
2141 | ||
2142 | if ((err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma))) | |
2143 | goto free_pci_mem; | |
2144 | ||
19a33d4e SH |
2145 | err = skge_rx_fill(skge); |
2146 | if (err) | |
baef58b1 SH |
2147 | goto free_rx_ring; |
2148 | ||
2149 | if ((err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size, | |
2150 | skge->dma + rx_size))) | |
2151 | goto free_rx_ring; | |
2152 | ||
2153 | skge->tx_avail = skge->tx_ring.count - 1; | |
2154 | ||
7e676d91 SH |
2155 | /* Enable IRQ from port */ |
2156 | hw->intr_mask |= portirqmask[port]; | |
2157 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
2158 | ||
8f3f8193 | 2159 | /* Initialize MAC */ |
4ff6ac05 | 2160 | spin_lock_bh(&hw->phy_lock); |
baef58b1 SH |
2161 | if (hw->chip_id == CHIP_ID_GENESIS) |
2162 | genesis_mac_init(hw, port); | |
2163 | else | |
2164 | yukon_mac_init(hw, port); | |
4ff6ac05 | 2165 | spin_unlock_bh(&hw->phy_lock); |
baef58b1 SH |
2166 | |
2167 | /* Configure RAMbuffers */ | |
981d0377 | 2168 | chunk = hw->ram_size / ((hw->ports + 1)*2); |
baef58b1 SH |
2169 | ram_addr = hw->ram_offset + 2 * chunk * port; |
2170 | ||
2171 | skge_ramset(hw, rxqaddr[port], ram_addr, chunk); | |
2172 | skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean); | |
2173 | ||
2174 | BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean); | |
2175 | skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk); | |
2176 | skge_qset(skge, txqaddr[port], skge->tx_ring.to_use); | |
2177 | ||
2178 | /* Start receiver BMU */ | |
2179 | wmb(); | |
2180 | skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F); | |
6abebb53 | 2181 | skge_led(skge, LED_MODE_ON); |
baef58b1 | 2182 | |
baef58b1 SH |
2183 | return 0; |
2184 | ||
2185 | free_rx_ring: | |
2186 | skge_rx_clean(skge); | |
2187 | kfree(skge->rx_ring.start); | |
2188 | free_pci_mem: | |
2189 | pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma); | |
2190 | ||
2191 | return err; | |
2192 | } | |
2193 | ||
2194 | static int skge_down(struct net_device *dev) | |
2195 | { | |
2196 | struct skge_port *skge = netdev_priv(dev); | |
2197 | struct skge_hw *hw = skge->hw; | |
2198 | int port = skge->port; | |
2199 | ||
2200 | if (netif_msg_ifdown(skge)) | |
2201 | printk(KERN_INFO PFX "%s: disabling interface\n", dev->name); | |
2202 | ||
2203 | netif_stop_queue(dev); | |
2204 | ||
46a60f2d SH |
2205 | skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF); |
2206 | if (hw->chip_id == CHIP_ID_GENESIS) | |
2207 | genesis_stop(skge); | |
2208 | else | |
2209 | yukon_stop(skge); | |
2210 | ||
2211 | hw->intr_mask &= ~portirqmask[skge->port]; | |
2212 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
2213 | ||
baef58b1 SH |
2214 | /* Stop transmitter */ |
2215 | skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP); | |
2216 | skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), | |
2217 | RB_RST_SET|RB_DIS_OP_MD); | |
2218 | ||
baef58b1 SH |
2219 | |
2220 | /* Disable Force Sync bit and Enable Alloc bit */ | |
6b0c1480 | 2221 | skge_write8(hw, SK_REG(port, TXA_CTRL), |
baef58b1 SH |
2222 | TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC); |
2223 | ||
2224 | /* Stop Interval Timer and Limit Counter of Tx Arbiter */ | |
6b0c1480 SH |
2225 | skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L); |
2226 | skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L); | |
baef58b1 SH |
2227 | |
2228 | /* Reset PCI FIFO */ | |
2229 | skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET); | |
2230 | skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET); | |
2231 | ||
2232 | /* Reset the RAM Buffer async Tx queue */ | |
2233 | skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET); | |
2234 | /* stop receiver */ | |
2235 | skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP); | |
2236 | skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL), | |
2237 | RB_RST_SET|RB_DIS_OP_MD); | |
2238 | skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET); | |
2239 | ||
2240 | if (hw->chip_id == CHIP_ID_GENESIS) { | |
6b0c1480 SH |
2241 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET); |
2242 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET); | |
baef58b1 | 2243 | } else { |
6b0c1480 SH |
2244 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); |
2245 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET); | |
baef58b1 SH |
2246 | } |
2247 | ||
6abebb53 | 2248 | skge_led(skge, LED_MODE_OFF); |
baef58b1 SH |
2249 | |
2250 | skge_tx_clean(skge); | |
2251 | skge_rx_clean(skge); | |
2252 | ||
2253 | kfree(skge->rx_ring.start); | |
2254 | kfree(skge->tx_ring.start); | |
2255 | pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma); | |
2256 | return 0; | |
2257 | } | |
2258 | ||
2259 | static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev) | |
2260 | { | |
2261 | struct skge_port *skge = netdev_priv(dev); | |
2262 | struct skge_hw *hw = skge->hw; | |
2263 | struct skge_ring *ring = &skge->tx_ring; | |
2264 | struct skge_element *e; | |
2265 | struct skge_tx_desc *td; | |
2266 | int i; | |
2267 | u32 control, len; | |
2268 | u64 map; | |
2269 | unsigned long flags; | |
2270 | ||
2271 | skb = skb_padto(skb, ETH_ZLEN); | |
2272 | if (!skb) | |
2273 | return NETDEV_TX_OK; | |
2274 | ||
2275 | local_irq_save(flags); | |
2276 | if (!spin_trylock(&skge->tx_lock)) { | |
95566065 SH |
2277 | /* Collision - tell upper layer to requeue */ |
2278 | local_irq_restore(flags); | |
2279 | return NETDEV_TX_LOCKED; | |
2280 | } | |
baef58b1 SH |
2281 | |
2282 | if (unlikely(skge->tx_avail < skb_shinfo(skb)->nr_frags +1)) { | |
2283 | netif_stop_queue(dev); | |
2284 | spin_unlock_irqrestore(&skge->tx_lock, flags); | |
2285 | ||
2286 | printk(KERN_WARNING PFX "%s: ring full when queue awake!\n", | |
2287 | dev->name); | |
2288 | return NETDEV_TX_BUSY; | |
2289 | } | |
2290 | ||
2291 | e = ring->to_use; | |
2292 | td = e->desc; | |
2293 | e->skb = skb; | |
2294 | len = skb_headlen(skb); | |
2295 | map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
2296 | pci_unmap_addr_set(e, mapaddr, map); | |
2297 | pci_unmap_len_set(e, maplen, len); | |
2298 | ||
2299 | td->dma_lo = map; | |
2300 | td->dma_hi = map >> 32; | |
2301 | ||
2302 | if (skb->ip_summed == CHECKSUM_HW) { | |
2303 | const struct iphdr *ip | |
2304 | = (const struct iphdr *) (skb->data + ETH_HLEN); | |
2305 | int offset = skb->h.raw - skb->data; | |
2306 | ||
2307 | /* This seems backwards, but it is what the sk98lin | |
2308 | * does. Looks like hardware is wrong? | |
2309 | */ | |
2310 | if (ip->protocol == IPPROTO_UDP | |
981d0377 | 2311 | && hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON) |
baef58b1 SH |
2312 | control = BMU_TCP_CHECK; |
2313 | else | |
2314 | control = BMU_UDP_CHECK; | |
2315 | ||
2316 | td->csum_offs = 0; | |
2317 | td->csum_start = offset; | |
2318 | td->csum_write = offset + skb->csum; | |
2319 | } else | |
2320 | control = BMU_CHECK; | |
2321 | ||
2322 | if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */ | |
2323 | control |= BMU_EOF| BMU_IRQ_EOF; | |
2324 | else { | |
2325 | struct skge_tx_desc *tf = td; | |
2326 | ||
2327 | control |= BMU_STFWD; | |
2328 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
2329 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
2330 | ||
2331 | map = pci_map_page(hw->pdev, frag->page, frag->page_offset, | |
2332 | frag->size, PCI_DMA_TODEVICE); | |
2333 | ||
2334 | e = e->next; | |
2335 | e->skb = NULL; | |
2336 | tf = e->desc; | |
2337 | tf->dma_lo = map; | |
2338 | tf->dma_hi = (u64) map >> 32; | |
2339 | pci_unmap_addr_set(e, mapaddr, map); | |
2340 | pci_unmap_len_set(e, maplen, frag->size); | |
2341 | ||
2342 | tf->control = BMU_OWN | BMU_SW | control | frag->size; | |
2343 | } | |
2344 | tf->control |= BMU_EOF | BMU_IRQ_EOF; | |
2345 | } | |
2346 | /* Make sure all the descriptors written */ | |
2347 | wmb(); | |
2348 | td->control = BMU_OWN | BMU_SW | BMU_STF | control | len; | |
2349 | wmb(); | |
2350 | ||
2351 | skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START); | |
2352 | ||
2353 | if (netif_msg_tx_queued(skge)) | |
0b2d7fea | 2354 | printk(KERN_DEBUG "%s: tx queued, slot %td, len %d\n", |
baef58b1 SH |
2355 | dev->name, e - ring->start, skb->len); |
2356 | ||
2357 | ring->to_use = e->next; | |
2358 | skge->tx_avail -= skb_shinfo(skb)->nr_frags + 1; | |
2359 | if (skge->tx_avail <= MAX_SKB_FRAGS + 1) { | |
2360 | pr_debug("%s: transmit queue full\n", dev->name); | |
2361 | netif_stop_queue(dev); | |
2362 | } | |
2363 | ||
2364 | dev->trans_start = jiffies; | |
2365 | spin_unlock_irqrestore(&skge->tx_lock, flags); | |
2366 | ||
2367 | return NETDEV_TX_OK; | |
2368 | } | |
2369 | ||
2370 | static inline void skge_tx_free(struct skge_hw *hw, struct skge_element *e) | |
2371 | { | |
19a33d4e | 2372 | /* This ring element can be skb or fragment */ |
baef58b1 SH |
2373 | if (e->skb) { |
2374 | pci_unmap_single(hw->pdev, | |
2375 | pci_unmap_addr(e, mapaddr), | |
2376 | pci_unmap_len(e, maplen), | |
2377 | PCI_DMA_TODEVICE); | |
2378 | dev_kfree_skb_any(e->skb); | |
2379 | e->skb = NULL; | |
2380 | } else { | |
2381 | pci_unmap_page(hw->pdev, | |
2382 | pci_unmap_addr(e, mapaddr), | |
2383 | pci_unmap_len(e, maplen), | |
2384 | PCI_DMA_TODEVICE); | |
2385 | } | |
2386 | } | |
2387 | ||
2388 | static void skge_tx_clean(struct skge_port *skge) | |
2389 | { | |
2390 | struct skge_ring *ring = &skge->tx_ring; | |
2391 | struct skge_element *e; | |
2392 | unsigned long flags; | |
2393 | ||
2394 | spin_lock_irqsave(&skge->tx_lock, flags); | |
2395 | for (e = ring->to_clean; e != ring->to_use; e = e->next) { | |
2396 | ++skge->tx_avail; | |
2397 | skge_tx_free(skge->hw, e); | |
2398 | } | |
2399 | ring->to_clean = e; | |
2400 | spin_unlock_irqrestore(&skge->tx_lock, flags); | |
2401 | } | |
2402 | ||
2403 | static void skge_tx_timeout(struct net_device *dev) | |
2404 | { | |
2405 | struct skge_port *skge = netdev_priv(dev); | |
2406 | ||
2407 | if (netif_msg_timer(skge)) | |
2408 | printk(KERN_DEBUG PFX "%s: tx timeout\n", dev->name); | |
2409 | ||
2410 | skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP); | |
2411 | skge_tx_clean(skge); | |
2412 | } | |
2413 | ||
2414 | static int skge_change_mtu(struct net_device *dev, int new_mtu) | |
2415 | { | |
2416 | int err = 0; | |
19a33d4e | 2417 | int running = netif_running(dev); |
baef58b1 | 2418 | |
95566065 | 2419 | if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) |
baef58b1 SH |
2420 | return -EINVAL; |
2421 | ||
baef58b1 | 2422 | |
19a33d4e | 2423 | if (running) |
baef58b1 | 2424 | skge_down(dev); |
19a33d4e SH |
2425 | dev->mtu = new_mtu; |
2426 | if (running) | |
baef58b1 | 2427 | skge_up(dev); |
baef58b1 SH |
2428 | |
2429 | return err; | |
2430 | } | |
2431 | ||
2432 | static void genesis_set_multicast(struct net_device *dev) | |
2433 | { | |
2434 | struct skge_port *skge = netdev_priv(dev); | |
2435 | struct skge_hw *hw = skge->hw; | |
2436 | int port = skge->port; | |
2437 | int i, count = dev->mc_count; | |
2438 | struct dev_mc_list *list = dev->mc_list; | |
2439 | u32 mode; | |
2440 | u8 filter[8]; | |
2441 | ||
6b0c1480 | 2442 | mode = xm_read32(hw, port, XM_MODE); |
baef58b1 SH |
2443 | mode |= XM_MD_ENA_HASH; |
2444 | if (dev->flags & IFF_PROMISC) | |
2445 | mode |= XM_MD_ENA_PROM; | |
2446 | else | |
2447 | mode &= ~XM_MD_ENA_PROM; | |
2448 | ||
2449 | if (dev->flags & IFF_ALLMULTI) | |
2450 | memset(filter, 0xff, sizeof(filter)); | |
2451 | else { | |
2452 | memset(filter, 0, sizeof(filter)); | |
95566065 | 2453 | for (i = 0; list && i < count; i++, list = list->next) { |
45bada65 SH |
2454 | u32 crc, bit; |
2455 | crc = ether_crc_le(ETH_ALEN, list->dmi_addr); | |
2456 | bit = ~crc & 0x3f; | |
baef58b1 SH |
2457 | filter[bit/8] |= 1 << (bit%8); |
2458 | } | |
2459 | } | |
2460 | ||
6b0c1480 | 2461 | xm_write32(hw, port, XM_MODE, mode); |
45bada65 | 2462 | xm_outhash(hw, port, XM_HSM, filter); |
baef58b1 SH |
2463 | } |
2464 | ||
2465 | static void yukon_set_multicast(struct net_device *dev) | |
2466 | { | |
2467 | struct skge_port *skge = netdev_priv(dev); | |
2468 | struct skge_hw *hw = skge->hw; | |
2469 | int port = skge->port; | |
2470 | struct dev_mc_list *list = dev->mc_list; | |
2471 | u16 reg; | |
2472 | u8 filter[8]; | |
2473 | ||
2474 | memset(filter, 0, sizeof(filter)); | |
2475 | ||
6b0c1480 | 2476 | reg = gma_read16(hw, port, GM_RX_CTRL); |
baef58b1 SH |
2477 | reg |= GM_RXCR_UCF_ENA; |
2478 | ||
8f3f8193 | 2479 | if (dev->flags & IFF_PROMISC) /* promiscuous */ |
baef58b1 SH |
2480 | reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); |
2481 | else if (dev->flags & IFF_ALLMULTI) /* all multicast */ | |
2482 | memset(filter, 0xff, sizeof(filter)); | |
2483 | else if (dev->mc_count == 0) /* no multicast */ | |
2484 | reg &= ~GM_RXCR_MCF_ENA; | |
2485 | else { | |
2486 | int i; | |
2487 | reg |= GM_RXCR_MCF_ENA; | |
2488 | ||
95566065 | 2489 | for (i = 0; list && i < dev->mc_count; i++, list = list->next) { |
baef58b1 SH |
2490 | u32 bit = ether_crc(ETH_ALEN, list->dmi_addr) & 0x3f; |
2491 | filter[bit/8] |= 1 << (bit%8); | |
2492 | } | |
2493 | } | |
2494 | ||
2495 | ||
6b0c1480 | 2496 | gma_write16(hw, port, GM_MC_ADDR_H1, |
baef58b1 | 2497 | (u16)filter[0] | ((u16)filter[1] << 8)); |
6b0c1480 | 2498 | gma_write16(hw, port, GM_MC_ADDR_H2, |
baef58b1 | 2499 | (u16)filter[2] | ((u16)filter[3] << 8)); |
6b0c1480 | 2500 | gma_write16(hw, port, GM_MC_ADDR_H3, |
baef58b1 | 2501 | (u16)filter[4] | ((u16)filter[5] << 8)); |
6b0c1480 | 2502 | gma_write16(hw, port, GM_MC_ADDR_H4, |
baef58b1 SH |
2503 | (u16)filter[6] | ((u16)filter[7] << 8)); |
2504 | ||
6b0c1480 | 2505 | gma_write16(hw, port, GM_RX_CTRL, reg); |
baef58b1 SH |
2506 | } |
2507 | ||
383181ac SH |
2508 | static inline u16 phy_length(const struct skge_hw *hw, u32 status) |
2509 | { | |
2510 | if (hw->chip_id == CHIP_ID_GENESIS) | |
2511 | return status >> XMR_FS_LEN_SHIFT; | |
2512 | else | |
2513 | return status >> GMR_FS_LEN_SHIFT; | |
2514 | } | |
2515 | ||
baef58b1 SH |
2516 | static inline int bad_phy_status(const struct skge_hw *hw, u32 status) |
2517 | { | |
2518 | if (hw->chip_id == CHIP_ID_GENESIS) | |
2519 | return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0; | |
2520 | else | |
2521 | return (status & GMR_FS_ANY_ERR) || | |
2522 | (status & GMR_FS_RX_OK) == 0; | |
2523 | } | |
2524 | ||
19a33d4e SH |
2525 | |
2526 | /* Get receive buffer from descriptor. | |
2527 | * Handles copy of small buffers and reallocation failures | |
2528 | */ | |
2529 | static inline struct sk_buff *skge_rx_get(struct skge_port *skge, | |
2530 | struct skge_element *e, | |
383181ac | 2531 | u32 control, u32 status, u16 csum) |
19a33d4e | 2532 | { |
383181ac SH |
2533 | struct sk_buff *skb; |
2534 | u16 len = control & BMU_BBC; | |
2535 | ||
2536 | if (unlikely(netif_msg_rx_status(skge))) | |
2537 | printk(KERN_DEBUG PFX "%s: rx slot %td status 0x%x len %d\n", | |
2538 | skge->netdev->name, e - skge->rx_ring.start, | |
2539 | status, len); | |
2540 | ||
2541 | if (len > skge->rx_buf_size) | |
2542 | goto error; | |
2543 | ||
2544 | if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF)) | |
2545 | goto error; | |
2546 | ||
2547 | if (bad_phy_status(skge->hw, status)) | |
2548 | goto error; | |
2549 | ||
2550 | if (phy_length(skge->hw, status) != len) | |
2551 | goto error; | |
19a33d4e SH |
2552 | |
2553 | if (len < RX_COPY_THRESHOLD) { | |
383181ac SH |
2554 | skb = dev_alloc_skb(len + 2); |
2555 | if (!skb) | |
2556 | goto resubmit; | |
19a33d4e | 2557 | |
383181ac | 2558 | skb_reserve(skb, 2); |
19a33d4e SH |
2559 | pci_dma_sync_single_for_cpu(skge->hw->pdev, |
2560 | pci_unmap_addr(e, mapaddr), | |
2561 | len, PCI_DMA_FROMDEVICE); | |
383181ac | 2562 | memcpy(skb->data, e->skb->data, len); |
19a33d4e SH |
2563 | pci_dma_sync_single_for_device(skge->hw->pdev, |
2564 | pci_unmap_addr(e, mapaddr), | |
2565 | len, PCI_DMA_FROMDEVICE); | |
19a33d4e | 2566 | skge_rx_reuse(e, skge->rx_buf_size); |
19a33d4e | 2567 | } else { |
383181ac SH |
2568 | struct sk_buff *nskb; |
2569 | nskb = dev_alloc_skb(skge->rx_buf_size + NET_IP_ALIGN); | |
2570 | if (!nskb) | |
2571 | goto resubmit; | |
19a33d4e SH |
2572 | |
2573 | pci_unmap_single(skge->hw->pdev, | |
2574 | pci_unmap_addr(e, mapaddr), | |
2575 | pci_unmap_len(e, maplen), | |
2576 | PCI_DMA_FROMDEVICE); | |
2577 | skb = e->skb; | |
383181ac | 2578 | prefetch(skb->data); |
19a33d4e | 2579 | skge_rx_setup(skge, e, nskb, skge->rx_buf_size); |
baef58b1 | 2580 | } |
383181ac SH |
2581 | |
2582 | skb_put(skb, len); | |
2583 | skb->dev = skge->netdev; | |
2584 | if (skge->rx_csum) { | |
2585 | skb->csum = csum; | |
2586 | skb->ip_summed = CHECKSUM_HW; | |
2587 | } | |
2588 | ||
2589 | skb->protocol = eth_type_trans(skb, skge->netdev); | |
2590 | ||
2591 | return skb; | |
2592 | error: | |
2593 | ||
2594 | if (netif_msg_rx_err(skge)) | |
2595 | printk(KERN_DEBUG PFX "%s: rx err, slot %td control 0x%x status 0x%x\n", | |
2596 | skge->netdev->name, e - skge->rx_ring.start, | |
2597 | control, status); | |
2598 | ||
2599 | if (skge->hw->chip_id == CHIP_ID_GENESIS) { | |
2600 | if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR)) | |
2601 | skge->net_stats.rx_length_errors++; | |
2602 | if (status & XMR_FS_FRA_ERR) | |
2603 | skge->net_stats.rx_frame_errors++; | |
2604 | if (status & XMR_FS_FCS_ERR) | |
2605 | skge->net_stats.rx_crc_errors++; | |
2606 | } else { | |
2607 | if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE)) | |
2608 | skge->net_stats.rx_length_errors++; | |
2609 | if (status & GMR_FS_FRAGMENT) | |
2610 | skge->net_stats.rx_frame_errors++; | |
2611 | if (status & GMR_FS_CRC_ERR) | |
2612 | skge->net_stats.rx_crc_errors++; | |
2613 | } | |
2614 | ||
2615 | resubmit: | |
2616 | skge_rx_reuse(e, skge->rx_buf_size); | |
2617 | return NULL; | |
baef58b1 SH |
2618 | } |
2619 | ||
19a33d4e | 2620 | |
baef58b1 SH |
2621 | static int skge_poll(struct net_device *dev, int *budget) |
2622 | { | |
2623 | struct skge_port *skge = netdev_priv(dev); | |
2624 | struct skge_hw *hw = skge->hw; | |
2625 | struct skge_ring *ring = &skge->rx_ring; | |
2626 | struct skge_element *e; | |
2627 | unsigned int to_do = min(dev->quota, *budget); | |
2628 | unsigned int work_done = 0; | |
7e676d91 | 2629 | |
1631aef1 | 2630 | for (e = ring->to_clean; prefetch(e->next), work_done < to_do; e = e->next) { |
baef58b1 | 2631 | struct skge_rx_desc *rd = e->desc; |
19a33d4e | 2632 | struct sk_buff *skb; |
383181ac | 2633 | u32 control; |
baef58b1 SH |
2634 | |
2635 | rmb(); | |
2636 | control = rd->control; | |
2637 | if (control & BMU_OWN) | |
2638 | break; | |
2639 | ||
383181ac SH |
2640 | skb = skge_rx_get(skge, e, control, rd->status, |
2641 | le16_to_cpu(rd->csum2)); | |
19a33d4e | 2642 | if (likely(skb)) { |
19a33d4e SH |
2643 | dev->last_rx = jiffies; |
2644 | netif_receive_skb(skb); | |
baef58b1 | 2645 | |
19a33d4e SH |
2646 | ++work_done; |
2647 | } else | |
2648 | skge_rx_reuse(e, skge->rx_buf_size); | |
baef58b1 SH |
2649 | } |
2650 | ring->to_clean = e; | |
2651 | ||
baef58b1 SH |
2652 | /* restart receiver */ |
2653 | wmb(); | |
2654 | skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), | |
2655 | CSR_START | CSR_IRQ_CL_F); | |
2656 | ||
19a33d4e SH |
2657 | *budget -= work_done; |
2658 | dev->quota -= work_done; | |
2659 | ||
2660 | if (work_done >= to_do) | |
2661 | return 1; /* not done */ | |
baef58b1 | 2662 | |
1631aef1 | 2663 | netif_rx_complete(dev); |
19a33d4e SH |
2664 | hw->intr_mask |= portirqmask[skge->port]; |
2665 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
1631aef1 SH |
2666 | skge_read32(hw, B0_IMSK); |
2667 | ||
19a33d4e | 2668 | return 0; |
baef58b1 SH |
2669 | } |
2670 | ||
2671 | static inline void skge_tx_intr(struct net_device *dev) | |
2672 | { | |
2673 | struct skge_port *skge = netdev_priv(dev); | |
2674 | struct skge_hw *hw = skge->hw; | |
2675 | struct skge_ring *ring = &skge->tx_ring; | |
2676 | struct skge_element *e; | |
2677 | ||
2678 | spin_lock(&skge->tx_lock); | |
1631aef1 | 2679 | for (e = ring->to_clean; prefetch(e->next), e != ring->to_use; e = e->next) { |
baef58b1 SH |
2680 | struct skge_tx_desc *td = e->desc; |
2681 | u32 control; | |
2682 | ||
2683 | rmb(); | |
2684 | control = td->control; | |
2685 | if (control & BMU_OWN) | |
2686 | break; | |
2687 | ||
2688 | if (unlikely(netif_msg_tx_done(skge))) | |
0b2d7fea | 2689 | printk(KERN_DEBUG PFX "%s: tx done slot %td status 0x%x\n", |
baef58b1 SH |
2690 | dev->name, e - ring->start, td->status); |
2691 | ||
2692 | skge_tx_free(hw, e); | |
2693 | e->skb = NULL; | |
2694 | ++skge->tx_avail; | |
2695 | } | |
2696 | ring->to_clean = e; | |
2697 | skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F); | |
2698 | ||
2699 | if (skge->tx_avail > MAX_SKB_FRAGS + 1) | |
2700 | netif_wake_queue(dev); | |
2701 | ||
2702 | spin_unlock(&skge->tx_lock); | |
2703 | } | |
2704 | ||
f6620cab SH |
2705 | /* Parity errors seem to happen when Genesis is connected to a switch |
2706 | * with no other ports present. Heartbeat error?? | |
2707 | */ | |
baef58b1 SH |
2708 | static void skge_mac_parity(struct skge_hw *hw, int port) |
2709 | { | |
f6620cab SH |
2710 | struct net_device *dev = hw->dev[port]; |
2711 | ||
2712 | if (dev) { | |
2713 | struct skge_port *skge = netdev_priv(dev); | |
2714 | ++skge->net_stats.tx_heartbeat_errors; | |
2715 | } | |
baef58b1 SH |
2716 | |
2717 | if (hw->chip_id == CHIP_ID_GENESIS) | |
6b0c1480 | 2718 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), |
baef58b1 SH |
2719 | MFF_CLR_PERR); |
2720 | else | |
2721 | /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */ | |
6b0c1480 | 2722 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), |
981d0377 | 2723 | (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0) |
baef58b1 SH |
2724 | ? GMF_CLI_TX_FC : GMF_CLI_TX_PE); |
2725 | } | |
2726 | ||
2727 | static void skge_pci_clear(struct skge_hw *hw) | |
2728 | { | |
2729 | u16 status; | |
2730 | ||
467b3417 | 2731 | pci_read_config_word(hw->pdev, PCI_STATUS, &status); |
baef58b1 | 2732 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); |
467b3417 SH |
2733 | pci_write_config_word(hw->pdev, PCI_STATUS, |
2734 | status | PCI_STATUS_ERROR_BITS); | |
baef58b1 SH |
2735 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
2736 | } | |
2737 | ||
2738 | static void skge_mac_intr(struct skge_hw *hw, int port) | |
2739 | { | |
95566065 | 2740 | if (hw->chip_id == CHIP_ID_GENESIS) |
baef58b1 SH |
2741 | genesis_mac_intr(hw, port); |
2742 | else | |
2743 | yukon_mac_intr(hw, port); | |
2744 | } | |
2745 | ||
2746 | /* Handle device specific framing and timeout interrupts */ | |
2747 | static void skge_error_irq(struct skge_hw *hw) | |
2748 | { | |
2749 | u32 hwstatus = skge_read32(hw, B0_HWE_ISRC); | |
2750 | ||
2751 | if (hw->chip_id == CHIP_ID_GENESIS) { | |
2752 | /* clear xmac errors */ | |
2753 | if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1)) | |
46a60f2d | 2754 | skge_write16(hw, RX_MFF_CTRL1, MFF_CLR_INSTAT); |
baef58b1 | 2755 | if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2)) |
46a60f2d | 2756 | skge_write16(hw, RX_MFF_CTRL2, MFF_CLR_INSTAT); |
baef58b1 SH |
2757 | } else { |
2758 | /* Timestamp (unused) overflow */ | |
2759 | if (hwstatus & IS_IRQ_TIST_OV) | |
2760 | skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); | |
baef58b1 SH |
2761 | } |
2762 | ||
2763 | if (hwstatus & IS_RAM_RD_PAR) { | |
2764 | printk(KERN_ERR PFX "Ram read data parity error\n"); | |
2765 | skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR); | |
2766 | } | |
2767 | ||
2768 | if (hwstatus & IS_RAM_WR_PAR) { | |
2769 | printk(KERN_ERR PFX "Ram write data parity error\n"); | |
2770 | skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR); | |
2771 | } | |
2772 | ||
2773 | if (hwstatus & IS_M1_PAR_ERR) | |
2774 | skge_mac_parity(hw, 0); | |
2775 | ||
2776 | if (hwstatus & IS_M2_PAR_ERR) | |
2777 | skge_mac_parity(hw, 1); | |
2778 | ||
2779 | if (hwstatus & IS_R1_PAR_ERR) | |
2780 | skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P); | |
2781 | ||
2782 | if (hwstatus & IS_R2_PAR_ERR) | |
2783 | skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P); | |
2784 | ||
2785 | if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) { | |
2786 | printk(KERN_ERR PFX "hardware error detected (status 0x%x)\n", | |
2787 | hwstatus); | |
2788 | ||
2789 | skge_pci_clear(hw); | |
2790 | ||
050ec18a | 2791 | /* if error still set then just ignore it */ |
baef58b1 SH |
2792 | hwstatus = skge_read32(hw, B0_HWE_ISRC); |
2793 | if (hwstatus & IS_IRQ_STAT) { | |
050ec18a | 2794 | pr_debug("IRQ status %x: still set ignoring hardware errors\n", |
baef58b1 SH |
2795 | hwstatus); |
2796 | hw->intr_mask &= ~IS_HW_ERR; | |
2797 | } | |
2798 | } | |
2799 | } | |
2800 | ||
2801 | /* | |
8f3f8193 | 2802 | * Interrupt from PHY are handled in tasklet (soft irq) |
baef58b1 SH |
2803 | * because accessing phy registers requires spin wait which might |
2804 | * cause excess interrupt latency. | |
2805 | */ | |
2806 | static void skge_extirq(unsigned long data) | |
2807 | { | |
2808 | struct skge_hw *hw = (struct skge_hw *) data; | |
2809 | int port; | |
2810 | ||
2811 | spin_lock(&hw->phy_lock); | |
2812 | for (port = 0; port < 2; port++) { | |
2813 | struct net_device *dev = hw->dev[port]; | |
2814 | ||
2815 | if (dev && netif_running(dev)) { | |
2816 | struct skge_port *skge = netdev_priv(dev); | |
2817 | ||
2818 | if (hw->chip_id != CHIP_ID_GENESIS) | |
2819 | yukon_phy_intr(skge); | |
89bf5f23 | 2820 | else |
45bada65 | 2821 | bcom_phy_intr(skge); |
baef58b1 SH |
2822 | } |
2823 | } | |
2824 | spin_unlock(&hw->phy_lock); | |
2825 | ||
2826 | local_irq_disable(); | |
2827 | hw->intr_mask |= IS_EXT_REG; | |
2828 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
2829 | local_irq_enable(); | |
2830 | } | |
2831 | ||
1631aef1 SH |
2832 | static inline void skge_wakeup(struct net_device *dev) |
2833 | { | |
2834 | struct skge_port *skge = netdev_priv(dev); | |
2835 | ||
2836 | prefetch(skge->rx_ring.to_clean); | |
2837 | netif_rx_schedule(dev); | |
2838 | } | |
2839 | ||
baef58b1 SH |
2840 | static irqreturn_t skge_intr(int irq, void *dev_id, struct pt_regs *regs) |
2841 | { | |
2842 | struct skge_hw *hw = dev_id; | |
2843 | u32 status = skge_read32(hw, B0_SP_ISRC); | |
2844 | ||
2845 | if (status == 0 || status == ~0) /* hotplug or shared irq */ | |
2846 | return IRQ_NONE; | |
2847 | ||
2848 | status &= hw->intr_mask; | |
7e676d91 | 2849 | if (status & IS_R1_F) { |
baef58b1 | 2850 | hw->intr_mask &= ~IS_R1_F; |
1631aef1 | 2851 | skge_wakeup(hw->dev[0]); |
baef58b1 SH |
2852 | } |
2853 | ||
7e676d91 | 2854 | if (status & IS_R2_F) { |
baef58b1 | 2855 | hw->intr_mask &= ~IS_R2_F; |
1631aef1 | 2856 | skge_wakeup(hw->dev[1]); |
baef58b1 SH |
2857 | } |
2858 | ||
2859 | if (status & IS_XA1_F) | |
2860 | skge_tx_intr(hw->dev[0]); | |
2861 | ||
2862 | if (status & IS_XA2_F) | |
2863 | skge_tx_intr(hw->dev[1]); | |
2864 | ||
d25f5a67 SH |
2865 | if (status & IS_PA_TO_RX1) { |
2866 | struct skge_port *skge = netdev_priv(hw->dev[0]); | |
2867 | ++skge->net_stats.rx_over_errors; | |
2868 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1); | |
2869 | } | |
2870 | ||
2871 | if (status & IS_PA_TO_RX2) { | |
2872 | struct skge_port *skge = netdev_priv(hw->dev[1]); | |
2873 | ++skge->net_stats.rx_over_errors; | |
2874 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2); | |
2875 | } | |
2876 | ||
2877 | if (status & IS_PA_TO_TX1) | |
2878 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1); | |
2879 | ||
2880 | if (status & IS_PA_TO_TX2) | |
2881 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2); | |
2882 | ||
baef58b1 SH |
2883 | if (status & IS_MAC1) |
2884 | skge_mac_intr(hw, 0); | |
95566065 | 2885 | |
baef58b1 SH |
2886 | if (status & IS_MAC2) |
2887 | skge_mac_intr(hw, 1); | |
2888 | ||
2889 | if (status & IS_HW_ERR) | |
2890 | skge_error_irq(hw); | |
2891 | ||
2892 | if (status & IS_EXT_REG) { | |
2893 | hw->intr_mask &= ~IS_EXT_REG; | |
2894 | tasklet_schedule(&hw->ext_tasklet); | |
2895 | } | |
2896 | ||
7e676d91 | 2897 | skge_write32(hw, B0_IMSK, hw->intr_mask); |
baef58b1 SH |
2898 | |
2899 | return IRQ_HANDLED; | |
2900 | } | |
2901 | ||
2902 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2903 | static void skge_netpoll(struct net_device *dev) | |
2904 | { | |
2905 | struct skge_port *skge = netdev_priv(dev); | |
2906 | ||
2907 | disable_irq(dev->irq); | |
2908 | skge_intr(dev->irq, skge->hw, NULL); | |
2909 | enable_irq(dev->irq); | |
2910 | } | |
2911 | #endif | |
2912 | ||
2913 | static int skge_set_mac_address(struct net_device *dev, void *p) | |
2914 | { | |
2915 | struct skge_port *skge = netdev_priv(dev); | |
c2681dd8 SH |
2916 | struct skge_hw *hw = skge->hw; |
2917 | unsigned port = skge->port; | |
2918 | const struct sockaddr *addr = p; | |
baef58b1 SH |
2919 | |
2920 | if (!is_valid_ether_addr(addr->sa_data)) | |
2921 | return -EADDRNOTAVAIL; | |
2922 | ||
c2681dd8 | 2923 | spin_lock_bh(&hw->phy_lock); |
baef58b1 | 2924 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); |
c2681dd8 | 2925 | memcpy_toio(hw->regs + B2_MAC_1 + port*8, |
baef58b1 | 2926 | dev->dev_addr, ETH_ALEN); |
c2681dd8 | 2927 | memcpy_toio(hw->regs + B2_MAC_2 + port*8, |
baef58b1 | 2928 | dev->dev_addr, ETH_ALEN); |
c2681dd8 SH |
2929 | |
2930 | if (hw->chip_id == CHIP_ID_GENESIS) | |
2931 | xm_outaddr(hw, port, XM_SA, dev->dev_addr); | |
2932 | else { | |
2933 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr); | |
2934 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr); | |
2935 | } | |
2936 | spin_unlock_bh(&hw->phy_lock); | |
2937 | ||
2938 | return 0; | |
baef58b1 SH |
2939 | } |
2940 | ||
2941 | static const struct { | |
2942 | u8 id; | |
2943 | const char *name; | |
2944 | } skge_chips[] = { | |
2945 | { CHIP_ID_GENESIS, "Genesis" }, | |
2946 | { CHIP_ID_YUKON, "Yukon" }, | |
2947 | { CHIP_ID_YUKON_LITE, "Yukon-Lite"}, | |
2948 | { CHIP_ID_YUKON_LP, "Yukon-LP"}, | |
baef58b1 SH |
2949 | }; |
2950 | ||
2951 | static const char *skge_board_name(const struct skge_hw *hw) | |
2952 | { | |
2953 | int i; | |
2954 | static char buf[16]; | |
2955 | ||
2956 | for (i = 0; i < ARRAY_SIZE(skge_chips); i++) | |
2957 | if (skge_chips[i].id == hw->chip_id) | |
2958 | return skge_chips[i].name; | |
2959 | ||
2960 | snprintf(buf, sizeof buf, "chipid 0x%x", hw->chip_id); | |
2961 | return buf; | |
2962 | } | |
2963 | ||
2964 | ||
2965 | /* | |
2966 | * Setup the board data structure, but don't bring up | |
2967 | * the port(s) | |
2968 | */ | |
2969 | static int skge_reset(struct skge_hw *hw) | |
2970 | { | |
adba9e23 | 2971 | u32 reg; |
baef58b1 | 2972 | u16 ctst; |
5e1705dd | 2973 | u8 t8, mac_cfg, pmd_type, phy_type; |
981d0377 | 2974 | int i; |
baef58b1 SH |
2975 | |
2976 | ctst = skge_read16(hw, B0_CTST); | |
2977 | ||
2978 | /* do a SW reset */ | |
2979 | skge_write8(hw, B0_CTST, CS_RST_SET); | |
2980 | skge_write8(hw, B0_CTST, CS_RST_CLR); | |
2981 | ||
2982 | /* clear PCI errors, if any */ | |
2983 | skge_pci_clear(hw); | |
2984 | ||
2985 | skge_write8(hw, B0_CTST, CS_MRST_CLR); | |
2986 | ||
2987 | /* restore CLK_RUN bits (for Yukon-Lite) */ | |
2988 | skge_write16(hw, B0_CTST, | |
2989 | ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA)); | |
2990 | ||
2991 | hw->chip_id = skge_read8(hw, B2_CHIP_ID); | |
5e1705dd SH |
2992 | phy_type = skge_read8(hw, B2_E_1) & 0xf; |
2993 | pmd_type = skge_read8(hw, B2_PMD_TYP); | |
2994 | hw->copper = (pmd_type == 'T' || pmd_type == '1'); | |
baef58b1 | 2995 | |
95566065 | 2996 | switch (hw->chip_id) { |
baef58b1 | 2997 | case CHIP_ID_GENESIS: |
5e1705dd | 2998 | switch (phy_type) { |
baef58b1 SH |
2999 | case SK_PHY_BCOM: |
3000 | hw->phy_addr = PHY_ADDR_BCOM; | |
3001 | break; | |
3002 | default: | |
3003 | printk(KERN_ERR PFX "%s: unsupported phy type 0x%x\n", | |
5e1705dd | 3004 | pci_name(hw->pdev), phy_type); |
baef58b1 SH |
3005 | return -EOPNOTSUPP; |
3006 | } | |
3007 | break; | |
3008 | ||
3009 | case CHIP_ID_YUKON: | |
3010 | case CHIP_ID_YUKON_LITE: | |
3011 | case CHIP_ID_YUKON_LP: | |
5e1705dd SH |
3012 | if (phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S') |
3013 | hw->copper = 1; | |
baef58b1 SH |
3014 | |
3015 | hw->phy_addr = PHY_ADDR_MARV; | |
baef58b1 SH |
3016 | break; |
3017 | ||
3018 | default: | |
3019 | printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n", | |
3020 | pci_name(hw->pdev), hw->chip_id); | |
3021 | return -EOPNOTSUPP; | |
3022 | } | |
3023 | ||
981d0377 SH |
3024 | mac_cfg = skge_read8(hw, B2_MAC_CFG); |
3025 | hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2; | |
3026 | hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4; | |
baef58b1 SH |
3027 | |
3028 | /* read the adapters RAM size */ | |
3029 | t8 = skge_read8(hw, B2_E_0); | |
3030 | if (hw->chip_id == CHIP_ID_GENESIS) { | |
3031 | if (t8 == 3) { | |
3032 | /* special case: 4 x 64k x 36, offset = 0x80000 */ | |
3033 | hw->ram_size = 0x100000; | |
3034 | hw->ram_offset = 0x80000; | |
3035 | } else | |
3036 | hw->ram_size = t8 * 512; | |
3037 | } | |
3038 | else if (t8 == 0) | |
3039 | hw->ram_size = 0x20000; | |
3040 | else | |
3041 | hw->ram_size = t8 * 4096; | |
3042 | ||
050ec18a | 3043 | hw->intr_mask = IS_HW_ERR | IS_EXT_REG; |
baef58b1 SH |
3044 | if (hw->chip_id == CHIP_ID_GENESIS) |
3045 | genesis_init(hw); | |
3046 | else { | |
3047 | /* switch power to VCC (WA for VAUX problem) */ | |
3048 | skge_write8(hw, B0_POWER_CTRL, | |
3049 | PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON); | |
adba9e23 | 3050 | |
050ec18a SH |
3051 | /* avoid boards with stuck Hardware error bits */ |
3052 | if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) && | |
3053 | (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) { | |
3054 | printk(KERN_WARNING PFX "stuck hardware sensor bit\n"); | |
3055 | hw->intr_mask &= ~IS_HW_ERR; | |
3056 | } | |
3057 | ||
adba9e23 SH |
3058 | /* Clear PHY COMA */ |
3059 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
3060 | pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®); | |
3061 | reg &= ~PCI_PHY_COMA; | |
3062 | pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg); | |
3063 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); | |
3064 | ||
3065 | ||
981d0377 | 3066 | for (i = 0; i < hw->ports; i++) { |
6b0c1480 SH |
3067 | skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET); |
3068 | skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR); | |
baef58b1 SH |
3069 | } |
3070 | } | |
3071 | ||
3072 | /* turn off hardware timer (unused) */ | |
3073 | skge_write8(hw, B2_TI_CTRL, TIM_STOP); | |
3074 | skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ); | |
3075 | skge_write8(hw, B0_LED, LED_STAT_ON); | |
3076 | ||
3077 | /* enable the Tx Arbiters */ | |
981d0377 | 3078 | for (i = 0; i < hw->ports; i++) |
6b0c1480 | 3079 | skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB); |
baef58b1 SH |
3080 | |
3081 | /* Initialize ram interface */ | |
3082 | skge_write16(hw, B3_RI_CTRL, RI_RST_CLR); | |
3083 | ||
3084 | skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53); | |
3085 | skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53); | |
3086 | skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53); | |
3087 | skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53); | |
3088 | skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53); | |
3089 | skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53); | |
3090 | skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53); | |
3091 | skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53); | |
3092 | skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53); | |
3093 | skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53); | |
3094 | skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53); | |
3095 | skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53); | |
3096 | ||
3097 | skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK); | |
3098 | ||
3099 | /* Set interrupt moderation for Transmit only | |
3100 | * Receive interrupts avoided by NAPI | |
3101 | */ | |
3102 | skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F); | |
3103 | skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100)); | |
3104 | skge_write32(hw, B2_IRQM_CTRL, TIM_START); | |
3105 | ||
baef58b1 SH |
3106 | skge_write32(hw, B0_IMSK, hw->intr_mask); |
3107 | ||
baef58b1 | 3108 | spin_lock_bh(&hw->phy_lock); |
981d0377 | 3109 | for (i = 0; i < hw->ports; i++) { |
baef58b1 SH |
3110 | if (hw->chip_id == CHIP_ID_GENESIS) |
3111 | genesis_reset(hw, i); | |
3112 | else | |
3113 | yukon_reset(hw, i); | |
3114 | } | |
3115 | spin_unlock_bh(&hw->phy_lock); | |
3116 | ||
3117 | return 0; | |
3118 | } | |
3119 | ||
3120 | /* Initialize network device */ | |
981d0377 SH |
3121 | static struct net_device *skge_devinit(struct skge_hw *hw, int port, |
3122 | int highmem) | |
baef58b1 SH |
3123 | { |
3124 | struct skge_port *skge; | |
3125 | struct net_device *dev = alloc_etherdev(sizeof(*skge)); | |
3126 | ||
3127 | if (!dev) { | |
3128 | printk(KERN_ERR "skge etherdev alloc failed"); | |
3129 | return NULL; | |
3130 | } | |
3131 | ||
3132 | SET_MODULE_OWNER(dev); | |
3133 | SET_NETDEV_DEV(dev, &hw->pdev->dev); | |
3134 | dev->open = skge_up; | |
3135 | dev->stop = skge_down; | |
2cd8e5d3 | 3136 | dev->do_ioctl = skge_ioctl; |
baef58b1 SH |
3137 | dev->hard_start_xmit = skge_xmit_frame; |
3138 | dev->get_stats = skge_get_stats; | |
3139 | if (hw->chip_id == CHIP_ID_GENESIS) | |
3140 | dev->set_multicast_list = genesis_set_multicast; | |
3141 | else | |
3142 | dev->set_multicast_list = yukon_set_multicast; | |
3143 | ||
3144 | dev->set_mac_address = skge_set_mac_address; | |
3145 | dev->change_mtu = skge_change_mtu; | |
3146 | SET_ETHTOOL_OPS(dev, &skge_ethtool_ops); | |
3147 | dev->tx_timeout = skge_tx_timeout; | |
3148 | dev->watchdog_timeo = TX_WATCHDOG; | |
3149 | dev->poll = skge_poll; | |
3150 | dev->weight = NAPI_WEIGHT; | |
3151 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3152 | dev->poll_controller = skge_netpoll; | |
3153 | #endif | |
3154 | dev->irq = hw->pdev->irq; | |
3155 | dev->features = NETIF_F_LLTX; | |
981d0377 SH |
3156 | if (highmem) |
3157 | dev->features |= NETIF_F_HIGHDMA; | |
baef58b1 SH |
3158 | |
3159 | skge = netdev_priv(dev); | |
3160 | skge->netdev = dev; | |
3161 | skge->hw = hw; | |
3162 | skge->msg_enable = netif_msg_init(debug, default_msg); | |
3163 | skge->tx_ring.count = DEFAULT_TX_RING_SIZE; | |
3164 | skge->rx_ring.count = DEFAULT_RX_RING_SIZE; | |
3165 | ||
3166 | /* Auto speed and flow control */ | |
3167 | skge->autoneg = AUTONEG_ENABLE; | |
3168 | skge->flow_control = FLOW_MODE_SYMMETRIC; | |
3169 | skge->duplex = -1; | |
3170 | skge->speed = -1; | |
31b619c5 | 3171 | skge->advertising = skge_supported_modes(hw); |
baef58b1 SH |
3172 | |
3173 | hw->dev[port] = dev; | |
3174 | ||
3175 | skge->port = port; | |
3176 | ||
3177 | spin_lock_init(&skge->tx_lock); | |
3178 | ||
baef58b1 SH |
3179 | if (hw->chip_id != CHIP_ID_GENESIS) { |
3180 | dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; | |
3181 | skge->rx_csum = 1; | |
3182 | } | |
3183 | ||
3184 | /* read the mac address */ | |
3185 | memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN); | |
56230d53 | 3186 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
baef58b1 SH |
3187 | |
3188 | /* device is off until link detection */ | |
3189 | netif_carrier_off(dev); | |
3190 | netif_stop_queue(dev); | |
3191 | ||
3192 | return dev; | |
3193 | } | |
3194 | ||
3195 | static void __devinit skge_show_addr(struct net_device *dev) | |
3196 | { | |
3197 | const struct skge_port *skge = netdev_priv(dev); | |
3198 | ||
3199 | if (netif_msg_probe(skge)) | |
3200 | printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n", | |
3201 | dev->name, | |
3202 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], | |
3203 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); | |
3204 | } | |
3205 | ||
3206 | static int __devinit skge_probe(struct pci_dev *pdev, | |
3207 | const struct pci_device_id *ent) | |
3208 | { | |
3209 | struct net_device *dev, *dev1; | |
3210 | struct skge_hw *hw; | |
3211 | int err, using_dac = 0; | |
3212 | ||
3213 | if ((err = pci_enable_device(pdev))) { | |
3214 | printk(KERN_ERR PFX "%s cannot enable PCI device\n", | |
3215 | pci_name(pdev)); | |
3216 | goto err_out; | |
3217 | } | |
3218 | ||
3219 | if ((err = pci_request_regions(pdev, DRV_NAME))) { | |
3220 | printk(KERN_ERR PFX "%s cannot obtain PCI resources\n", | |
3221 | pci_name(pdev)); | |
3222 | goto err_out_disable_pdev; | |
3223 | } | |
3224 | ||
3225 | pci_set_master(pdev); | |
3226 | ||
3227 | if (!(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) | |
3228 | using_dac = 1; | |
3229 | else if (!(err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) { | |
3230 | printk(KERN_ERR PFX "%s no usable DMA configuration\n", | |
3231 | pci_name(pdev)); | |
3232 | goto err_out_free_regions; | |
3233 | } | |
3234 | ||
3235 | #ifdef __BIG_ENDIAN | |
8f3f8193 | 3236 | /* byte swap descriptors in hardware */ |
baef58b1 SH |
3237 | { |
3238 | u32 reg; | |
3239 | ||
3240 | pci_read_config_dword(pdev, PCI_DEV_REG2, ®); | |
3241 | reg |= PCI_REV_DESC; | |
3242 | pci_write_config_dword(pdev, PCI_DEV_REG2, reg); | |
3243 | } | |
3244 | #endif | |
3245 | ||
3246 | err = -ENOMEM; | |
7e863061 | 3247 | hw = kzalloc(sizeof(*hw), GFP_KERNEL); |
baef58b1 SH |
3248 | if (!hw) { |
3249 | printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n", | |
3250 | pci_name(pdev)); | |
3251 | goto err_out_free_regions; | |
3252 | } | |
3253 | ||
baef58b1 SH |
3254 | hw->pdev = pdev; |
3255 | spin_lock_init(&hw->phy_lock); | |
3256 | tasklet_init(&hw->ext_tasklet, skge_extirq, (unsigned long) hw); | |
3257 | ||
3258 | hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000); | |
3259 | if (!hw->regs) { | |
3260 | printk(KERN_ERR PFX "%s: cannot map device registers\n", | |
3261 | pci_name(pdev)); | |
3262 | goto err_out_free_hw; | |
3263 | } | |
3264 | ||
3265 | if ((err = request_irq(pdev->irq, skge_intr, SA_SHIRQ, DRV_NAME, hw))) { | |
3266 | printk(KERN_ERR PFX "%s: cannot assign irq %d\n", | |
3267 | pci_name(pdev), pdev->irq); | |
3268 | goto err_out_iounmap; | |
3269 | } | |
3270 | pci_set_drvdata(pdev, hw); | |
3271 | ||
3272 | err = skge_reset(hw); | |
3273 | if (err) | |
3274 | goto err_out_free_irq; | |
3275 | ||
d7eaee08 | 3276 | printk(KERN_INFO PFX DRV_VERSION " addr 0x%lx irq %d chip %s rev %d\n", |
baef58b1 | 3277 | pci_resource_start(pdev, 0), pdev->irq, |
981d0377 | 3278 | skge_board_name(hw), hw->chip_rev); |
baef58b1 | 3279 | |
981d0377 | 3280 | if ((dev = skge_devinit(hw, 0, using_dac)) == NULL) |
baef58b1 SH |
3281 | goto err_out_led_off; |
3282 | ||
baef58b1 SH |
3283 | if ((err = register_netdev(dev))) { |
3284 | printk(KERN_ERR PFX "%s: cannot register net device\n", | |
3285 | pci_name(pdev)); | |
3286 | goto err_out_free_netdev; | |
3287 | } | |
3288 | ||
3289 | skge_show_addr(dev); | |
3290 | ||
981d0377 | 3291 | if (hw->ports > 1 && (dev1 = skge_devinit(hw, 1, using_dac))) { |
baef58b1 SH |
3292 | if (register_netdev(dev1) == 0) |
3293 | skge_show_addr(dev1); | |
3294 | else { | |
3295 | /* Failure to register second port need not be fatal */ | |
3296 | printk(KERN_WARNING PFX "register of second port failed\n"); | |
3297 | hw->dev[1] = NULL; | |
3298 | free_netdev(dev1); | |
3299 | } | |
3300 | } | |
3301 | ||
3302 | return 0; | |
3303 | ||
3304 | err_out_free_netdev: | |
3305 | free_netdev(dev); | |
3306 | err_out_led_off: | |
3307 | skge_write16(hw, B0_LED, LED_STAT_OFF); | |
3308 | err_out_free_irq: | |
3309 | free_irq(pdev->irq, hw); | |
3310 | err_out_iounmap: | |
3311 | iounmap(hw->regs); | |
3312 | err_out_free_hw: | |
3313 | kfree(hw); | |
3314 | err_out_free_regions: | |
3315 | pci_release_regions(pdev); | |
3316 | err_out_disable_pdev: | |
3317 | pci_disable_device(pdev); | |
3318 | pci_set_drvdata(pdev, NULL); | |
3319 | err_out: | |
3320 | return err; | |
3321 | } | |
3322 | ||
3323 | static void __devexit skge_remove(struct pci_dev *pdev) | |
3324 | { | |
3325 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
3326 | struct net_device *dev0, *dev1; | |
3327 | ||
95566065 | 3328 | if (!hw) |
baef58b1 SH |
3329 | return; |
3330 | ||
3331 | if ((dev1 = hw->dev[1])) | |
3332 | unregister_netdev(dev1); | |
3333 | dev0 = hw->dev[0]; | |
3334 | unregister_netdev(dev0); | |
3335 | ||
46a60f2d SH |
3336 | skge_write32(hw, B0_IMSK, 0); |
3337 | skge_write16(hw, B0_LED, LED_STAT_OFF); | |
3338 | skge_pci_clear(hw); | |
3339 | skge_write8(hw, B0_CTST, CS_RST_SET); | |
3340 | ||
baef58b1 SH |
3341 | tasklet_kill(&hw->ext_tasklet); |
3342 | ||
3343 | free_irq(pdev->irq, hw); | |
3344 | pci_release_regions(pdev); | |
3345 | pci_disable_device(pdev); | |
3346 | if (dev1) | |
3347 | free_netdev(dev1); | |
3348 | free_netdev(dev0); | |
46a60f2d | 3349 | |
baef58b1 SH |
3350 | iounmap(hw->regs); |
3351 | kfree(hw); | |
3352 | pci_set_drvdata(pdev, NULL); | |
3353 | } | |
3354 | ||
3355 | #ifdef CONFIG_PM | |
2a569579 | 3356 | static int skge_suspend(struct pci_dev *pdev, pm_message_t state) |
baef58b1 SH |
3357 | { |
3358 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
3359 | int i, wol = 0; | |
3360 | ||
95566065 | 3361 | for (i = 0; i < 2; i++) { |
baef58b1 SH |
3362 | struct net_device *dev = hw->dev[i]; |
3363 | ||
3364 | if (dev) { | |
3365 | struct skge_port *skge = netdev_priv(dev); | |
3366 | if (netif_running(dev)) { | |
3367 | netif_carrier_off(dev); | |
46a60f2d SH |
3368 | if (skge->wol) |
3369 | netif_stop_queue(dev); | |
3370 | else | |
3371 | skge_down(dev); | |
baef58b1 SH |
3372 | } |
3373 | netif_device_detach(dev); | |
3374 | wol |= skge->wol; | |
3375 | } | |
3376 | } | |
3377 | ||
3378 | pci_save_state(pdev); | |
2a569579 | 3379 | pci_enable_wake(pdev, pci_choose_state(pdev, state), wol); |
baef58b1 SH |
3380 | pci_disable_device(pdev); |
3381 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
3382 | ||
3383 | return 0; | |
3384 | } | |
3385 | ||
3386 | static int skge_resume(struct pci_dev *pdev) | |
3387 | { | |
3388 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
3389 | int i; | |
3390 | ||
3391 | pci_set_power_state(pdev, PCI_D0); | |
3392 | pci_restore_state(pdev); | |
3393 | pci_enable_wake(pdev, PCI_D0, 0); | |
3394 | ||
3395 | skge_reset(hw); | |
3396 | ||
95566065 | 3397 | for (i = 0; i < 2; i++) { |
baef58b1 SH |
3398 | struct net_device *dev = hw->dev[i]; |
3399 | if (dev) { | |
3400 | netif_device_attach(dev); | |
95566065 | 3401 | if (netif_running(dev)) |
baef58b1 SH |
3402 | skge_up(dev); |
3403 | } | |
3404 | } | |
3405 | return 0; | |
3406 | } | |
3407 | #endif | |
3408 | ||
3409 | static struct pci_driver skge_driver = { | |
3410 | .name = DRV_NAME, | |
3411 | .id_table = skge_id_table, | |
3412 | .probe = skge_probe, | |
3413 | .remove = __devexit_p(skge_remove), | |
3414 | #ifdef CONFIG_PM | |
3415 | .suspend = skge_suspend, | |
3416 | .resume = skge_resume, | |
3417 | #endif | |
3418 | }; | |
3419 | ||
3420 | static int __init skge_init_module(void) | |
3421 | { | |
3422 | return pci_module_init(&skge_driver); | |
3423 | } | |
3424 | ||
3425 | static void __exit skge_cleanup_module(void) | |
3426 | { | |
3427 | pci_unregister_driver(&skge_driver); | |
3428 | } | |
3429 | ||
3430 | module_init(skge_init_module); | |
3431 | module_exit(skge_cleanup_module); |