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 | |
798b6b19 | 14 | * the Free Software Foundation; either version 2 of the License. |
baef58b1 SH |
15 | * |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | */ | |
25 | ||
f15063cd JP |
26 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
27 | ||
14c85021 | 28 | #include <linux/in.h> |
baef58b1 SH |
29 | #include <linux/kernel.h> |
30 | #include <linux/module.h> | |
31 | #include <linux/moduleparam.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/etherdevice.h> | |
34 | #include <linux/ethtool.h> | |
35 | #include <linux/pci.h> | |
36 | #include <linux/if_vlan.h> | |
37 | #include <linux/ip.h> | |
38 | #include <linux/delay.h> | |
39 | #include <linux/crc32.h> | |
4075400b | 40 | #include <linux/dma-mapping.h> |
678aa1f6 | 41 | #include <linux/debugfs.h> |
d43c36dc | 42 | #include <linux/sched.h> |
678aa1f6 | 43 | #include <linux/seq_file.h> |
2cd8e5d3 | 44 | #include <linux/mii.h> |
5a0e3ad6 | 45 | #include <linux/slab.h> |
392bd0cb | 46 | #include <linux/dmi.h> |
70c71606 | 47 | #include <linux/prefetch.h> |
baef58b1 SH |
48 | #include <asm/irq.h> |
49 | ||
50 | #include "skge.h" | |
51 | ||
52 | #define DRV_NAME "skge" | |
5a9d6917 | 53 | #define DRV_VERSION "1.14" |
baef58b1 SH |
54 | |
55 | #define DEFAULT_TX_RING_SIZE 128 | |
56 | #define DEFAULT_RX_RING_SIZE 512 | |
57 | #define MAX_TX_RING_SIZE 1024 | |
9db96479 | 58 | #define TX_LOW_WATER (MAX_SKB_FRAGS + 1) |
baef58b1 | 59 | #define MAX_RX_RING_SIZE 4096 |
19a33d4e SH |
60 | #define RX_COPY_THRESHOLD 128 |
61 | #define RX_BUF_SIZE 1536 | |
baef58b1 SH |
62 | #define PHY_RETRIES 1000 |
63 | #define ETH_JUMBO_MTU 9000 | |
64 | #define TX_WATCHDOG (5 * HZ) | |
65 | #define NAPI_WEIGHT 64 | |
6abebb53 | 66 | #define BLINK_MS 250 |
501fb72d | 67 | #define LINK_HZ HZ |
baef58b1 | 68 | |
afa151b9 SH |
69 | #define SKGE_EEPROM_MAGIC 0x9933aabb |
70 | ||
71 | ||
baef58b1 | 72 | MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver"); |
65ebe634 | 73 | MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>"); |
baef58b1 SH |
74 | MODULE_LICENSE("GPL"); |
75 | MODULE_VERSION(DRV_VERSION); | |
76 | ||
67777f9b JP |
77 | static const u32 default_msg = (NETIF_MSG_DRV | NETIF_MSG_PROBE | |
78 | NETIF_MSG_LINK | NETIF_MSG_IFUP | | |
79 | NETIF_MSG_IFDOWN); | |
baef58b1 SH |
80 | |
81 | static int debug = -1; /* defaults above */ | |
82 | module_param(debug, int, 0); | |
83 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
84 | ||
a3aa1884 | 85 | static DEFINE_PCI_DEVICE_TABLE(skge_id_table) = { |
6f7d32f4 | 86 | { PCI_DEVICE(PCI_VENDOR_ID_3COM, 0x1700) }, /* 3Com 3C940 */ |
87 | { PCI_DEVICE(PCI_VENDOR_ID_3COM, 0x80EB) }, /* 3Com 3C940B */ | |
57d6fa37 | 88 | #ifdef CONFIG_SKGE_GENESIS |
89 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x4300) }, /* SK-9xx */ | |
90 | #endif | |
6f7d32f4 | 91 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x4320) }, /* SK-98xx V2.0 */ |
92 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b01) }, /* D-Link DGE-530T (rev.B) */ | |
93 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4c00) }, /* D-Link DGE-530T */ | |
c074304c | 94 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4302) }, /* D-Link DGE-530T Rev C1 */ |
6f7d32f4 | 95 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) }, /* Marvell Yukon 88E8001/8003/8010 */ |
96 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */ | |
97 | { PCI_DEVICE(PCI_VENDOR_ID_CNET, 0x434E) }, /* CNet PowerG-2000 */ | |
98 | { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, 0x1064) }, /* Linksys EG1064 v2 */ | |
99 | { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015 }, /* Linksys EG1032 v2 */ | |
baef58b1 SH |
100 | { 0 } |
101 | }; | |
102 | MODULE_DEVICE_TABLE(pci, skge_id_table); | |
103 | ||
104 | static int skge_up(struct net_device *dev); | |
105 | static int skge_down(struct net_device *dev); | |
ee294dcd | 106 | static void skge_phy_reset(struct skge_port *skge); |
513f533e | 107 | static void skge_tx_clean(struct net_device *dev); |
2cd8e5d3 SH |
108 | static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); |
109 | static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); | |
baef58b1 SH |
110 | static void genesis_get_stats(struct skge_port *skge, u64 *data); |
111 | static void yukon_get_stats(struct skge_port *skge, u64 *data); | |
112 | static void yukon_init(struct skge_hw *hw, int port); | |
baef58b1 | 113 | static void genesis_mac_init(struct skge_hw *hw, int port); |
45bada65 | 114 | static void genesis_link_up(struct skge_port *skge); |
f80d032b | 115 | static void skge_set_multicast(struct net_device *dev); |
baef58b1 | 116 | |
7e676d91 | 117 | /* Avoid conditionals by using array */ |
baef58b1 SH |
118 | static const int txqaddr[] = { Q_XA1, Q_XA2 }; |
119 | static const int rxqaddr[] = { Q_R1, Q_R2 }; | |
120 | static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F }; | |
121 | static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F }; | |
4ebabfcb SH |
122 | static const u32 napimask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F }; |
123 | static const u32 portmask[] = { IS_PORT_1, IS_PORT_2 }; | |
baef58b1 | 124 | |
57d6fa37 | 125 | static inline bool is_genesis(const struct skge_hw *hw) |
126 | { | |
127 | #ifdef CONFIG_SKGE_GENESIS | |
128 | return hw->chip_id == CHIP_ID_GENESIS; | |
129 | #else | |
130 | return false; | |
131 | #endif | |
132 | } | |
133 | ||
baef58b1 SH |
134 | static int skge_get_regs_len(struct net_device *dev) |
135 | { | |
c3f8be96 | 136 | return 0x4000; |
baef58b1 SH |
137 | } |
138 | ||
139 | /* | |
c3f8be96 SH |
140 | * Returns copy of whole control register region |
141 | * Note: skip RAM address register because accessing it will | |
142 | * cause bus hangs! | |
baef58b1 SH |
143 | */ |
144 | static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
145 | void *p) | |
146 | { | |
147 | const struct skge_port *skge = netdev_priv(dev); | |
baef58b1 | 148 | const void __iomem *io = skge->hw->regs; |
baef58b1 SH |
149 | |
150 | regs->version = 1; | |
c3f8be96 SH |
151 | memset(p, 0, regs->len); |
152 | memcpy_fromio(p, io, B3_RAM_ADDR); | |
baef58b1 | 153 | |
c3f8be96 SH |
154 | memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1, |
155 | regs->len - B3_RI_WTO_R1); | |
baef58b1 SH |
156 | } |
157 | ||
8f3f8193 | 158 | /* Wake on Lan only supported on Yukon chips with rev 1 or above */ |
a504e64a | 159 | static u32 wol_supported(const struct skge_hw *hw) |
baef58b1 | 160 | { |
57d6fa37 | 161 | if (is_genesis(hw)) |
a504e64a | 162 | return 0; |
d17ecb23 SH |
163 | |
164 | if (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0) | |
165 | return 0; | |
166 | ||
167 | return WAKE_MAGIC | WAKE_PHY; | |
a504e64a SH |
168 | } |
169 | ||
a504e64a SH |
170 | static void skge_wol_init(struct skge_port *skge) |
171 | { | |
172 | struct skge_hw *hw = skge->hw; | |
173 | int port = skge->port; | |
692412b3 | 174 | u16 ctrl; |
a504e64a | 175 | |
a504e64a SH |
176 | skge_write16(hw, B0_CTST, CS_RST_CLR); |
177 | skge_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR); | |
178 | ||
692412b3 SH |
179 | /* Turn on Vaux */ |
180 | skge_write8(hw, B0_POWER_CTRL, | |
181 | PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_ON | PC_VCC_OFF); | |
a504e64a | 182 | |
692412b3 SH |
183 | /* WA code for COMA mode -- clear PHY reset */ |
184 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
185 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) { | |
186 | u32 reg = skge_read32(hw, B2_GP_IO); | |
187 | reg |= GP_DIR_9; | |
188 | reg &= ~GP_IO_9; | |
189 | skge_write32(hw, B2_GP_IO, reg); | |
190 | } | |
a504e64a | 191 | |
692412b3 SH |
192 | skge_write32(hw, SK_REG(port, GPHY_CTRL), |
193 | GPC_DIS_SLEEP | | |
194 | GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 | | |
195 | GPC_ANEG_1 | GPC_RST_SET); | |
a504e64a | 196 | |
692412b3 SH |
197 | skge_write32(hw, SK_REG(port, GPHY_CTRL), |
198 | GPC_DIS_SLEEP | | |
199 | GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 | | |
200 | GPC_ANEG_1 | GPC_RST_CLR); | |
201 | ||
202 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); | |
203 | ||
204 | /* Force to 10/100 skge_reset will re-enable on resume */ | |
205 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, | |
67777f9b JP |
206 | (PHY_AN_100FULL | PHY_AN_100HALF | |
207 | PHY_AN_10FULL | PHY_AN_10HALF | PHY_AN_CSMA)); | |
692412b3 SH |
208 | /* no 1000 HD/FD */ |
209 | gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, 0); | |
210 | gm_phy_write(hw, port, PHY_MARV_CTRL, | |
211 | PHY_CT_RESET | PHY_CT_SPS_LSB | PHY_CT_ANE | | |
212 | PHY_CT_RE_CFG | PHY_CT_DUP_MD); | |
a504e64a | 213 | |
a504e64a SH |
214 | |
215 | /* Set GMAC to no flow control and auto update for speed/duplex */ | |
216 | gma_write16(hw, port, GM_GP_CTRL, | |
217 | GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA| | |
218 | GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS); | |
219 | ||
220 | /* Set WOL address */ | |
221 | memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR), | |
222 | skge->netdev->dev_addr, ETH_ALEN); | |
223 | ||
224 | /* Turn on appropriate WOL control bits */ | |
225 | skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT); | |
226 | ctrl = 0; | |
227 | if (skge->wol & WAKE_PHY) | |
228 | ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT; | |
229 | else | |
230 | ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT; | |
231 | ||
232 | if (skge->wol & WAKE_MAGIC) | |
233 | ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT; | |
234 | else | |
a419aef8 | 235 | ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT; |
a504e64a SH |
236 | |
237 | ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT; | |
238 | skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl); | |
239 | ||
240 | /* block receiver */ | |
241 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); | |
baef58b1 SH |
242 | } |
243 | ||
244 | static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
245 | { | |
246 | struct skge_port *skge = netdev_priv(dev); | |
247 | ||
a504e64a SH |
248 | wol->supported = wol_supported(skge->hw); |
249 | wol->wolopts = skge->wol; | |
baef58b1 SH |
250 | } |
251 | ||
252 | static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
253 | { | |
254 | struct skge_port *skge = netdev_priv(dev); | |
255 | struct skge_hw *hw = skge->hw; | |
256 | ||
8e95a202 JP |
257 | if ((wol->wolopts & ~wol_supported(hw)) || |
258 | !device_can_wakeup(&hw->pdev->dev)) | |
baef58b1 SH |
259 | return -EOPNOTSUPP; |
260 | ||
a504e64a | 261 | skge->wol = wol->wolopts; |
5177b324 RW |
262 | |
263 | device_set_wakeup_enable(&hw->pdev->dev, skge->wol); | |
264 | ||
baef58b1 SH |
265 | return 0; |
266 | } | |
267 | ||
8f3f8193 SH |
268 | /* Determine supported/advertised modes based on hardware. |
269 | * Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx | |
31b619c5 SH |
270 | */ |
271 | static u32 skge_supported_modes(const struct skge_hw *hw) | |
272 | { | |
273 | u32 supported; | |
274 | ||
5e1705dd | 275 | if (hw->copper) { |
67777f9b JP |
276 | supported = (SUPPORTED_10baseT_Half | |
277 | SUPPORTED_10baseT_Full | | |
278 | SUPPORTED_100baseT_Half | | |
279 | SUPPORTED_100baseT_Full | | |
280 | SUPPORTED_1000baseT_Half | | |
281 | SUPPORTED_1000baseT_Full | | |
282 | SUPPORTED_Autoneg | | |
283 | SUPPORTED_TP); | |
31b619c5 | 284 | |
57d6fa37 | 285 | if (is_genesis(hw)) |
67777f9b JP |
286 | supported &= ~(SUPPORTED_10baseT_Half | |
287 | SUPPORTED_10baseT_Full | | |
288 | SUPPORTED_100baseT_Half | | |
289 | SUPPORTED_100baseT_Full); | |
31b619c5 SH |
290 | |
291 | else if (hw->chip_id == CHIP_ID_YUKON) | |
292 | supported &= ~SUPPORTED_1000baseT_Half; | |
293 | } else | |
67777f9b JP |
294 | supported = (SUPPORTED_1000baseT_Full | |
295 | SUPPORTED_1000baseT_Half | | |
296 | SUPPORTED_FIBRE | | |
297 | SUPPORTED_Autoneg); | |
31b619c5 SH |
298 | |
299 | return supported; | |
300 | } | |
baef58b1 SH |
301 | |
302 | static int skge_get_settings(struct net_device *dev, | |
303 | struct ethtool_cmd *ecmd) | |
304 | { | |
305 | struct skge_port *skge = netdev_priv(dev); | |
306 | struct skge_hw *hw = skge->hw; | |
307 | ||
308 | ecmd->transceiver = XCVR_INTERNAL; | |
31b619c5 | 309 | ecmd->supported = skge_supported_modes(hw); |
baef58b1 | 310 | |
5e1705dd | 311 | if (hw->copper) { |
baef58b1 SH |
312 | ecmd->port = PORT_TP; |
313 | ecmd->phy_address = hw->phy_addr; | |
31b619c5 | 314 | } else |
baef58b1 | 315 | ecmd->port = PORT_FIBRE; |
baef58b1 SH |
316 | |
317 | ecmd->advertising = skge->advertising; | |
318 | ecmd->autoneg = skge->autoneg; | |
70739497 | 319 | ethtool_cmd_speed_set(ecmd, skge->speed); |
baef58b1 SH |
320 | ecmd->duplex = skge->duplex; |
321 | return 0; | |
322 | } | |
323 | ||
baef58b1 SH |
324 | static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
325 | { | |
326 | struct skge_port *skge = netdev_priv(dev); | |
327 | const struct skge_hw *hw = skge->hw; | |
31b619c5 | 328 | u32 supported = skge_supported_modes(hw); |
9ac1353f | 329 | int err = 0; |
baef58b1 SH |
330 | |
331 | if (ecmd->autoneg == AUTONEG_ENABLE) { | |
31b619c5 SH |
332 | ecmd->advertising = supported; |
333 | skge->duplex = -1; | |
334 | skge->speed = -1; | |
baef58b1 | 335 | } else { |
31b619c5 | 336 | u32 setting; |
25db0338 | 337 | u32 speed = ethtool_cmd_speed(ecmd); |
31b619c5 | 338 | |
25db0338 | 339 | switch (speed) { |
baef58b1 | 340 | case SPEED_1000: |
31b619c5 SH |
341 | if (ecmd->duplex == DUPLEX_FULL) |
342 | setting = SUPPORTED_1000baseT_Full; | |
343 | else if (ecmd->duplex == DUPLEX_HALF) | |
344 | setting = SUPPORTED_1000baseT_Half; | |
345 | else | |
346 | return -EINVAL; | |
baef58b1 SH |
347 | break; |
348 | case SPEED_100: | |
31b619c5 SH |
349 | if (ecmd->duplex == DUPLEX_FULL) |
350 | setting = SUPPORTED_100baseT_Full; | |
351 | else if (ecmd->duplex == DUPLEX_HALF) | |
352 | setting = SUPPORTED_100baseT_Half; | |
353 | else | |
354 | return -EINVAL; | |
355 | break; | |
356 | ||
baef58b1 | 357 | case SPEED_10: |
31b619c5 SH |
358 | if (ecmd->duplex == DUPLEX_FULL) |
359 | setting = SUPPORTED_10baseT_Full; | |
360 | else if (ecmd->duplex == DUPLEX_HALF) | |
361 | setting = SUPPORTED_10baseT_Half; | |
362 | else | |
baef58b1 SH |
363 | return -EINVAL; |
364 | break; | |
365 | default: | |
366 | return -EINVAL; | |
367 | } | |
31b619c5 SH |
368 | |
369 | if ((setting & supported) == 0) | |
370 | return -EINVAL; | |
371 | ||
25db0338 | 372 | skge->speed = speed; |
31b619c5 | 373 | skge->duplex = ecmd->duplex; |
baef58b1 SH |
374 | } |
375 | ||
376 | skge->autoneg = ecmd->autoneg; | |
baef58b1 SH |
377 | skge->advertising = ecmd->advertising; |
378 | ||
9ac1353f XZ |
379 | if (netif_running(dev)) { |
380 | skge_down(dev); | |
381 | err = skge_up(dev); | |
382 | if (err) { | |
383 | dev_close(dev); | |
384 | return err; | |
385 | } | |
386 | } | |
ee294dcd | 387 | |
67777f9b | 388 | return 0; |
baef58b1 SH |
389 | } |
390 | ||
391 | static void skge_get_drvinfo(struct net_device *dev, | |
392 | struct ethtool_drvinfo *info) | |
393 | { | |
394 | struct skge_port *skge = netdev_priv(dev); | |
395 | ||
396 | strcpy(info->driver, DRV_NAME); | |
397 | strcpy(info->version, DRV_VERSION); | |
398 | strcpy(info->fw_version, "N/A"); | |
399 | strcpy(info->bus_info, pci_name(skge->hw->pdev)); | |
400 | } | |
401 | ||
402 | static const struct skge_stat { | |
403 | char name[ETH_GSTRING_LEN]; | |
404 | u16 xmac_offset; | |
405 | u16 gma_offset; | |
406 | } skge_stats[] = { | |
407 | { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI }, | |
408 | { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI }, | |
409 | ||
410 | { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK }, | |
411 | { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK }, | |
412 | { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK }, | |
413 | { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK }, | |
414 | { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK }, | |
415 | { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK }, | |
416 | { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE }, | |
417 | { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE }, | |
418 | ||
419 | { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL }, | |
420 | { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL }, | |
421 | { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL }, | |
422 | { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL }, | |
423 | { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR }, | |
424 | { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV }, | |
425 | ||
426 | { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR }, | |
427 | { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT }, | |
428 | { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG }, | |
429 | { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR }, | |
430 | { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR }, | |
431 | }; | |
432 | ||
b9f2c044 | 433 | static int skge_get_sset_count(struct net_device *dev, int sset) |
baef58b1 | 434 | { |
b9f2c044 JG |
435 | switch (sset) { |
436 | case ETH_SS_STATS: | |
437 | return ARRAY_SIZE(skge_stats); | |
438 | default: | |
439 | return -EOPNOTSUPP; | |
440 | } | |
baef58b1 SH |
441 | } |
442 | ||
443 | static void skge_get_ethtool_stats(struct net_device *dev, | |
444 | struct ethtool_stats *stats, u64 *data) | |
445 | { | |
446 | struct skge_port *skge = netdev_priv(dev); | |
447 | ||
57d6fa37 | 448 | if (is_genesis(skge->hw)) |
baef58b1 SH |
449 | genesis_get_stats(skge, data); |
450 | else | |
451 | yukon_get_stats(skge, data); | |
452 | } | |
453 | ||
454 | /* Use hardware MIB variables for critical path statistics and | |
455 | * transmit feedback not reported at interrupt. | |
456 | * Other errors are accounted for in interrupt handler. | |
457 | */ | |
458 | static struct net_device_stats *skge_get_stats(struct net_device *dev) | |
459 | { | |
460 | struct skge_port *skge = netdev_priv(dev); | |
461 | u64 data[ARRAY_SIZE(skge_stats)]; | |
462 | ||
57d6fa37 | 463 | if (is_genesis(skge->hw)) |
baef58b1 SH |
464 | genesis_get_stats(skge, data); |
465 | else | |
466 | yukon_get_stats(skge, data); | |
467 | ||
da00772f SH |
468 | dev->stats.tx_bytes = data[0]; |
469 | dev->stats.rx_bytes = data[1]; | |
470 | dev->stats.tx_packets = data[2] + data[4] + data[6]; | |
471 | dev->stats.rx_packets = data[3] + data[5] + data[7]; | |
472 | dev->stats.multicast = data[3] + data[5]; | |
473 | dev->stats.collisions = data[10]; | |
474 | dev->stats.tx_aborted_errors = data[12]; | |
baef58b1 | 475 | |
da00772f | 476 | return &dev->stats; |
baef58b1 SH |
477 | } |
478 | ||
479 | static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
480 | { | |
481 | int i; | |
482 | ||
95566065 | 483 | switch (stringset) { |
baef58b1 SH |
484 | case ETH_SS_STATS: |
485 | for (i = 0; i < ARRAY_SIZE(skge_stats); i++) | |
486 | memcpy(data + i * ETH_GSTRING_LEN, | |
487 | skge_stats[i].name, ETH_GSTRING_LEN); | |
488 | break; | |
489 | } | |
490 | } | |
491 | ||
492 | static void skge_get_ring_param(struct net_device *dev, | |
493 | struct ethtool_ringparam *p) | |
494 | { | |
495 | struct skge_port *skge = netdev_priv(dev); | |
496 | ||
497 | p->rx_max_pending = MAX_RX_RING_SIZE; | |
498 | p->tx_max_pending = MAX_TX_RING_SIZE; | |
499 | p->rx_mini_max_pending = 0; | |
500 | p->rx_jumbo_max_pending = 0; | |
501 | ||
502 | p->rx_pending = skge->rx_ring.count; | |
503 | p->tx_pending = skge->tx_ring.count; | |
504 | p->rx_mini_pending = 0; | |
505 | p->rx_jumbo_pending = 0; | |
506 | } | |
507 | ||
508 | static int skge_set_ring_param(struct net_device *dev, | |
509 | struct ethtool_ringparam *p) | |
510 | { | |
511 | struct skge_port *skge = netdev_priv(dev); | |
e824b3eb | 512 | int err = 0; |
baef58b1 SH |
513 | |
514 | if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE || | |
9db96479 | 515 | p->tx_pending < TX_LOW_WATER || p->tx_pending > MAX_TX_RING_SIZE) |
baef58b1 SH |
516 | return -EINVAL; |
517 | ||
518 | skge->rx_ring.count = p->rx_pending; | |
519 | skge->tx_ring.count = p->tx_pending; | |
520 | ||
521 | if (netif_running(dev)) { | |
522 | skge_down(dev); | |
3b8bb472 SH |
523 | err = skge_up(dev); |
524 | if (err) | |
525 | dev_close(dev); | |
baef58b1 SH |
526 | } |
527 | ||
e824b3eb | 528 | return err; |
baef58b1 SH |
529 | } |
530 | ||
531 | static u32 skge_get_msglevel(struct net_device *netdev) | |
532 | { | |
533 | struct skge_port *skge = netdev_priv(netdev); | |
534 | return skge->msg_enable; | |
535 | } | |
536 | ||
537 | static void skge_set_msglevel(struct net_device *netdev, u32 value) | |
538 | { | |
539 | struct skge_port *skge = netdev_priv(netdev); | |
540 | skge->msg_enable = value; | |
541 | } | |
542 | ||
543 | static int skge_nway_reset(struct net_device *dev) | |
544 | { | |
545 | struct skge_port *skge = netdev_priv(dev); | |
baef58b1 SH |
546 | |
547 | if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev)) | |
548 | return -EINVAL; | |
549 | ||
ee294dcd | 550 | skge_phy_reset(skge); |
baef58b1 SH |
551 | return 0; |
552 | } | |
553 | ||
baef58b1 SH |
554 | static void skge_get_pauseparam(struct net_device *dev, |
555 | struct ethtool_pauseparam *ecmd) | |
556 | { | |
557 | struct skge_port *skge = netdev_priv(dev); | |
558 | ||
8e95a202 JP |
559 | ecmd->rx_pause = ((skge->flow_control == FLOW_MODE_SYMMETRIC) || |
560 | (skge->flow_control == FLOW_MODE_SYM_OR_REM)); | |
561 | ecmd->tx_pause = (ecmd->rx_pause || | |
562 | (skge->flow_control == FLOW_MODE_LOC_SEND)); | |
baef58b1 | 563 | |
5d5c8e03 | 564 | ecmd->autoneg = ecmd->rx_pause || ecmd->tx_pause; |
baef58b1 SH |
565 | } |
566 | ||
567 | static int skge_set_pauseparam(struct net_device *dev, | |
568 | struct ethtool_pauseparam *ecmd) | |
569 | { | |
570 | struct skge_port *skge = netdev_priv(dev); | |
5d5c8e03 | 571 | struct ethtool_pauseparam old; |
9ac1353f | 572 | int err = 0; |
baef58b1 | 573 | |
5d5c8e03 SH |
574 | skge_get_pauseparam(dev, &old); |
575 | ||
576 | if (ecmd->autoneg != old.autoneg) | |
577 | skge->flow_control = ecmd->autoneg ? FLOW_MODE_NONE : FLOW_MODE_SYMMETRIC; | |
578 | else { | |
579 | if (ecmd->rx_pause && ecmd->tx_pause) | |
580 | skge->flow_control = FLOW_MODE_SYMMETRIC; | |
581 | else if (ecmd->rx_pause && !ecmd->tx_pause) | |
582 | skge->flow_control = FLOW_MODE_SYM_OR_REM; | |
583 | else if (!ecmd->rx_pause && ecmd->tx_pause) | |
584 | skge->flow_control = FLOW_MODE_LOC_SEND; | |
585 | else | |
586 | skge->flow_control = FLOW_MODE_NONE; | |
587 | } | |
baef58b1 | 588 | |
9ac1353f XZ |
589 | if (netif_running(dev)) { |
590 | skge_down(dev); | |
591 | err = skge_up(dev); | |
592 | if (err) { | |
593 | dev_close(dev); | |
594 | return err; | |
595 | } | |
596 | } | |
5d5c8e03 | 597 | |
baef58b1 SH |
598 | return 0; |
599 | } | |
600 | ||
601 | /* Chip internal frequency for clock calculations */ | |
602 | static inline u32 hwkhz(const struct skge_hw *hw) | |
603 | { | |
57d6fa37 | 604 | return is_genesis(hw) ? 53125 : 78125; |
baef58b1 SH |
605 | } |
606 | ||
8f3f8193 | 607 | /* Chip HZ to microseconds */ |
baef58b1 SH |
608 | static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks) |
609 | { | |
610 | return (ticks * 1000) / hwkhz(hw); | |
611 | } | |
612 | ||
8f3f8193 | 613 | /* Microseconds to chip HZ */ |
baef58b1 SH |
614 | static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec) |
615 | { | |
616 | return hwkhz(hw) * usec / 1000; | |
617 | } | |
618 | ||
619 | static int skge_get_coalesce(struct net_device *dev, | |
620 | struct ethtool_coalesce *ecmd) | |
621 | { | |
622 | struct skge_port *skge = netdev_priv(dev); | |
623 | struct skge_hw *hw = skge->hw; | |
624 | int port = skge->port; | |
625 | ||
626 | ecmd->rx_coalesce_usecs = 0; | |
627 | ecmd->tx_coalesce_usecs = 0; | |
628 | ||
629 | if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) { | |
630 | u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI)); | |
631 | u32 msk = skge_read32(hw, B2_IRQM_MSK); | |
632 | ||
633 | if (msk & rxirqmask[port]) | |
634 | ecmd->rx_coalesce_usecs = delay; | |
635 | if (msk & txirqmask[port]) | |
636 | ecmd->tx_coalesce_usecs = delay; | |
637 | } | |
638 | ||
639 | return 0; | |
640 | } | |
641 | ||
642 | /* Note: interrupt timer is per board, but can turn on/off per port */ | |
643 | static int skge_set_coalesce(struct net_device *dev, | |
644 | struct ethtool_coalesce *ecmd) | |
645 | { | |
646 | struct skge_port *skge = netdev_priv(dev); | |
647 | struct skge_hw *hw = skge->hw; | |
648 | int port = skge->port; | |
649 | u32 msk = skge_read32(hw, B2_IRQM_MSK); | |
650 | u32 delay = 25; | |
651 | ||
652 | if (ecmd->rx_coalesce_usecs == 0) | |
653 | msk &= ~rxirqmask[port]; | |
654 | else if (ecmd->rx_coalesce_usecs < 25 || | |
655 | ecmd->rx_coalesce_usecs > 33333) | |
656 | return -EINVAL; | |
657 | else { | |
658 | msk |= rxirqmask[port]; | |
659 | delay = ecmd->rx_coalesce_usecs; | |
660 | } | |
661 | ||
662 | if (ecmd->tx_coalesce_usecs == 0) | |
663 | msk &= ~txirqmask[port]; | |
664 | else if (ecmd->tx_coalesce_usecs < 25 || | |
665 | ecmd->tx_coalesce_usecs > 33333) | |
666 | return -EINVAL; | |
667 | else { | |
668 | msk |= txirqmask[port]; | |
669 | delay = min(delay, ecmd->rx_coalesce_usecs); | |
670 | } | |
671 | ||
672 | skge_write32(hw, B2_IRQM_MSK, msk); | |
673 | if (msk == 0) | |
674 | skge_write32(hw, B2_IRQM_CTRL, TIM_STOP); | |
675 | else { | |
676 | skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay)); | |
677 | skge_write32(hw, B2_IRQM_CTRL, TIM_START); | |
678 | } | |
679 | return 0; | |
680 | } | |
681 | ||
6abebb53 SH |
682 | enum led_mode { LED_MODE_OFF, LED_MODE_ON, LED_MODE_TST }; |
683 | static void skge_led(struct skge_port *skge, enum led_mode mode) | |
baef58b1 | 684 | { |
6abebb53 SH |
685 | struct skge_hw *hw = skge->hw; |
686 | int port = skge->port; | |
687 | ||
9cbe330f | 688 | spin_lock_bh(&hw->phy_lock); |
57d6fa37 | 689 | if (is_genesis(hw)) { |
6abebb53 SH |
690 | switch (mode) { |
691 | case LED_MODE_OFF: | |
64f6b64d SH |
692 | if (hw->phy_type == SK_PHY_BCOM) |
693 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF); | |
694 | else { | |
695 | skge_write32(hw, SK_REG(port, TX_LED_VAL), 0); | |
696 | skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_T_OFF); | |
697 | } | |
6abebb53 SH |
698 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); |
699 | skge_write32(hw, SK_REG(port, RX_LED_VAL), 0); | |
700 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF); | |
701 | break; | |
baef58b1 | 702 | |
6abebb53 SH |
703 | case LED_MODE_ON: |
704 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON); | |
705 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON); | |
baef58b1 | 706 | |
6abebb53 SH |
707 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); |
708 | skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START); | |
baef58b1 | 709 | |
6abebb53 | 710 | break; |
baef58b1 | 711 | |
6abebb53 SH |
712 | case LED_MODE_TST: |
713 | skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON); | |
714 | skge_write32(hw, SK_REG(port, RX_LED_VAL), 100); | |
715 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); | |
baef58b1 | 716 | |
64f6b64d SH |
717 | if (hw->phy_type == SK_PHY_BCOM) |
718 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON); | |
719 | else { | |
720 | skge_write8(hw, SK_REG(port, TX_LED_TST), LED_T_ON); | |
721 | skge_write32(hw, SK_REG(port, TX_LED_VAL), 100); | |
722 | skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START); | |
723 | } | |
724 | ||
6abebb53 | 725 | } |
baef58b1 | 726 | } else { |
6abebb53 SH |
727 | switch (mode) { |
728 | case LED_MODE_OFF: | |
729 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); | |
730 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, | |
731 | PHY_M_LED_MO_DUP(MO_LED_OFF) | | |
732 | PHY_M_LED_MO_10(MO_LED_OFF) | | |
733 | PHY_M_LED_MO_100(MO_LED_OFF) | | |
734 | PHY_M_LED_MO_1000(MO_LED_OFF) | | |
735 | PHY_M_LED_MO_RX(MO_LED_OFF)); | |
736 | break; | |
737 | case LED_MODE_ON: | |
738 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, | |
739 | PHY_M_LED_PULS_DUR(PULS_170MS) | | |
740 | PHY_M_LED_BLINK_RT(BLINK_84MS) | | |
741 | PHY_M_LEDC_TX_CTRL | | |
742 | PHY_M_LEDC_DP_CTRL); | |
46a60f2d | 743 | |
6abebb53 SH |
744 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, |
745 | PHY_M_LED_MO_RX(MO_LED_OFF) | | |
746 | (skge->speed == SPEED_100 ? | |
747 | PHY_M_LED_MO_100(MO_LED_ON) : 0)); | |
748 | break; | |
749 | case LED_MODE_TST: | |
750 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); | |
751 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, | |
752 | PHY_M_LED_MO_DUP(MO_LED_ON) | | |
753 | PHY_M_LED_MO_10(MO_LED_ON) | | |
754 | PHY_M_LED_MO_100(MO_LED_ON) | | |
755 | PHY_M_LED_MO_1000(MO_LED_ON) | | |
756 | PHY_M_LED_MO_RX(MO_LED_ON)); | |
757 | } | |
baef58b1 | 758 | } |
9cbe330f | 759 | spin_unlock_bh(&hw->phy_lock); |
baef58b1 SH |
760 | } |
761 | ||
762 | /* blink LED's for finding board */ | |
a5b9f41c | 763 | static int skge_set_phys_id(struct net_device *dev, |
764 | enum ethtool_phys_id_state state) | |
baef58b1 SH |
765 | { |
766 | struct skge_port *skge = netdev_priv(dev); | |
767 | ||
a5b9f41c | 768 | switch (state) { |
769 | case ETHTOOL_ID_ACTIVE: | |
fce55922 | 770 | return 2; /* cycle on/off twice per second */ |
baef58b1 | 771 | |
a5b9f41c | 772 | case ETHTOOL_ID_ON: |
773 | skge_led(skge, LED_MODE_TST); | |
774 | break; | |
baef58b1 | 775 | |
a5b9f41c | 776 | case ETHTOOL_ID_OFF: |
777 | skge_led(skge, LED_MODE_OFF); | |
778 | break; | |
baef58b1 | 779 | |
a5b9f41c | 780 | case ETHTOOL_ID_INACTIVE: |
781 | /* back to regular LED state */ | |
782 | skge_led(skge, netif_running(dev) ? LED_MODE_ON : LED_MODE_OFF); | |
783 | } | |
baef58b1 SH |
784 | |
785 | return 0; | |
786 | } | |
787 | ||
afa151b9 SH |
788 | static int skge_get_eeprom_len(struct net_device *dev) |
789 | { | |
790 | struct skge_port *skge = netdev_priv(dev); | |
791 | u32 reg2; | |
792 | ||
793 | pci_read_config_dword(skge->hw->pdev, PCI_DEV_REG2, ®2); | |
67777f9b | 794 | return 1 << (((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8); |
afa151b9 SH |
795 | } |
796 | ||
797 | static u32 skge_vpd_read(struct pci_dev *pdev, int cap, u16 offset) | |
798 | { | |
799 | u32 val; | |
800 | ||
801 | pci_write_config_word(pdev, cap + PCI_VPD_ADDR, offset); | |
802 | ||
803 | do { | |
804 | pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset); | |
805 | } while (!(offset & PCI_VPD_ADDR_F)); | |
806 | ||
807 | pci_read_config_dword(pdev, cap + PCI_VPD_DATA, &val); | |
808 | return val; | |
809 | } | |
810 | ||
811 | static void skge_vpd_write(struct pci_dev *pdev, int cap, u16 offset, u32 val) | |
812 | { | |
813 | pci_write_config_dword(pdev, cap + PCI_VPD_DATA, val); | |
814 | pci_write_config_word(pdev, cap + PCI_VPD_ADDR, | |
815 | offset | PCI_VPD_ADDR_F); | |
816 | ||
817 | do { | |
818 | pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset); | |
819 | } while (offset & PCI_VPD_ADDR_F); | |
820 | } | |
821 | ||
822 | static int skge_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, | |
823 | u8 *data) | |
824 | { | |
825 | struct skge_port *skge = netdev_priv(dev); | |
826 | struct pci_dev *pdev = skge->hw->pdev; | |
827 | int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD); | |
828 | int length = eeprom->len; | |
829 | u16 offset = eeprom->offset; | |
830 | ||
831 | if (!cap) | |
832 | return -EINVAL; | |
833 | ||
834 | eeprom->magic = SKGE_EEPROM_MAGIC; | |
835 | ||
836 | while (length > 0) { | |
837 | u32 val = skge_vpd_read(pdev, cap, offset); | |
838 | int n = min_t(int, length, sizeof(val)); | |
839 | ||
840 | memcpy(data, &val, n); | |
841 | length -= n; | |
842 | data += n; | |
843 | offset += n; | |
844 | } | |
845 | return 0; | |
846 | } | |
847 | ||
848 | static int skge_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, | |
849 | u8 *data) | |
850 | { | |
851 | struct skge_port *skge = netdev_priv(dev); | |
852 | struct pci_dev *pdev = skge->hw->pdev; | |
853 | int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD); | |
854 | int length = eeprom->len; | |
855 | u16 offset = eeprom->offset; | |
856 | ||
857 | if (!cap) | |
858 | return -EINVAL; | |
859 | ||
860 | if (eeprom->magic != SKGE_EEPROM_MAGIC) | |
861 | return -EINVAL; | |
862 | ||
863 | while (length > 0) { | |
864 | u32 val; | |
865 | int n = min_t(int, length, sizeof(val)); | |
866 | ||
867 | if (n < sizeof(val)) | |
868 | val = skge_vpd_read(pdev, cap, offset); | |
869 | memcpy(&val, data, n); | |
870 | ||
871 | skge_vpd_write(pdev, cap, offset, val); | |
872 | ||
873 | length -= n; | |
874 | data += n; | |
875 | offset += n; | |
876 | } | |
877 | return 0; | |
878 | } | |
879 | ||
7282d491 | 880 | static const struct ethtool_ops skge_ethtool_ops = { |
baef58b1 SH |
881 | .get_settings = skge_get_settings, |
882 | .set_settings = skge_set_settings, | |
883 | .get_drvinfo = skge_get_drvinfo, | |
884 | .get_regs_len = skge_get_regs_len, | |
885 | .get_regs = skge_get_regs, | |
886 | .get_wol = skge_get_wol, | |
887 | .set_wol = skge_set_wol, | |
888 | .get_msglevel = skge_get_msglevel, | |
889 | .set_msglevel = skge_set_msglevel, | |
890 | .nway_reset = skge_nway_reset, | |
891 | .get_link = ethtool_op_get_link, | |
afa151b9 SH |
892 | .get_eeprom_len = skge_get_eeprom_len, |
893 | .get_eeprom = skge_get_eeprom, | |
894 | .set_eeprom = skge_set_eeprom, | |
baef58b1 SH |
895 | .get_ringparam = skge_get_ring_param, |
896 | .set_ringparam = skge_set_ring_param, | |
897 | .get_pauseparam = skge_get_pauseparam, | |
898 | .set_pauseparam = skge_set_pauseparam, | |
899 | .get_coalesce = skge_get_coalesce, | |
900 | .set_coalesce = skge_set_coalesce, | |
baef58b1 | 901 | .get_strings = skge_get_strings, |
a5b9f41c | 902 | .set_phys_id = skge_set_phys_id, |
b9f2c044 | 903 | .get_sset_count = skge_get_sset_count, |
baef58b1 SH |
904 | .get_ethtool_stats = skge_get_ethtool_stats, |
905 | }; | |
906 | ||
907 | /* | |
908 | * Allocate ring elements and chain them together | |
909 | * One-to-one association of board descriptors with ring elements | |
910 | */ | |
c3da1447 | 911 | static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u32 base) |
baef58b1 SH |
912 | { |
913 | struct skge_tx_desc *d; | |
914 | struct skge_element *e; | |
915 | int i; | |
916 | ||
cd861280 | 917 | ring->start = kcalloc(ring->count, sizeof(*e), GFP_KERNEL); |
baef58b1 SH |
918 | if (!ring->start) |
919 | return -ENOMEM; | |
920 | ||
921 | for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) { | |
922 | e->desc = d; | |
923 | if (i == ring->count - 1) { | |
924 | e->next = ring->start; | |
925 | d->next_offset = base; | |
926 | } else { | |
927 | e->next = e + 1; | |
928 | d->next_offset = base + (i+1) * sizeof(*d); | |
929 | } | |
930 | } | |
931 | ring->to_use = ring->to_clean = ring->start; | |
932 | ||
933 | return 0; | |
934 | } | |
935 | ||
19a33d4e SH |
936 | /* Allocate and setup a new buffer for receiving */ |
937 | static void skge_rx_setup(struct skge_port *skge, struct skge_element *e, | |
938 | struct sk_buff *skb, unsigned int bufsize) | |
939 | { | |
940 | struct skge_rx_desc *rd = e->desc; | |
941 | u64 map; | |
baef58b1 SH |
942 | |
943 | map = pci_map_single(skge->hw->pdev, skb->data, bufsize, | |
944 | PCI_DMA_FROMDEVICE); | |
945 | ||
946 | rd->dma_lo = map; | |
947 | rd->dma_hi = map >> 32; | |
948 | e->skb = skb; | |
949 | rd->csum1_start = ETH_HLEN; | |
950 | rd->csum2_start = ETH_HLEN; | |
951 | rd->csum1 = 0; | |
952 | rd->csum2 = 0; | |
953 | ||
954 | wmb(); | |
955 | ||
956 | rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize; | |
10fc51b9 FT |
957 | dma_unmap_addr_set(e, mapaddr, map); |
958 | dma_unmap_len_set(e, maplen, bufsize); | |
baef58b1 SH |
959 | } |
960 | ||
19a33d4e SH |
961 | /* Resume receiving using existing skb, |
962 | * Note: DMA address is not changed by chip. | |
963 | * MTU not changed while receiver active. | |
964 | */ | |
5a011447 | 965 | static inline void skge_rx_reuse(struct skge_element *e, unsigned int size) |
19a33d4e SH |
966 | { |
967 | struct skge_rx_desc *rd = e->desc; | |
968 | ||
969 | rd->csum2 = 0; | |
970 | rd->csum2_start = ETH_HLEN; | |
971 | ||
972 | wmb(); | |
973 | ||
974 | rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | size; | |
975 | } | |
976 | ||
977 | ||
978 | /* Free all buffers in receive ring, assumes receiver stopped */ | |
baef58b1 SH |
979 | static void skge_rx_clean(struct skge_port *skge) |
980 | { | |
981 | struct skge_hw *hw = skge->hw; | |
982 | struct skge_ring *ring = &skge->rx_ring; | |
983 | struct skge_element *e; | |
984 | ||
19a33d4e SH |
985 | e = ring->start; |
986 | do { | |
baef58b1 SH |
987 | struct skge_rx_desc *rd = e->desc; |
988 | rd->control = 0; | |
19a33d4e SH |
989 | if (e->skb) { |
990 | pci_unmap_single(hw->pdev, | |
10fc51b9 FT |
991 | dma_unmap_addr(e, mapaddr), |
992 | dma_unmap_len(e, maplen), | |
19a33d4e SH |
993 | PCI_DMA_FROMDEVICE); |
994 | dev_kfree_skb(e->skb); | |
995 | e->skb = NULL; | |
996 | } | |
997 | } while ((e = e->next) != ring->start); | |
baef58b1 SH |
998 | } |
999 | ||
19a33d4e | 1000 | |
baef58b1 | 1001 | /* Allocate buffers for receive ring |
19a33d4e | 1002 | * For receive: to_clean is next received frame. |
baef58b1 | 1003 | */ |
c54f9765 | 1004 | static int skge_rx_fill(struct net_device *dev) |
baef58b1 | 1005 | { |
c54f9765 | 1006 | struct skge_port *skge = netdev_priv(dev); |
baef58b1 SH |
1007 | struct skge_ring *ring = &skge->rx_ring; |
1008 | struct skge_element *e; | |
baef58b1 | 1009 | |
19a33d4e SH |
1010 | e = ring->start; |
1011 | do { | |
383181ac | 1012 | struct sk_buff *skb; |
baef58b1 | 1013 | |
c54f9765 SH |
1014 | skb = __netdev_alloc_skb(dev, skge->rx_buf_size + NET_IP_ALIGN, |
1015 | GFP_KERNEL); | |
19a33d4e SH |
1016 | if (!skb) |
1017 | return -ENOMEM; | |
1018 | ||
383181ac SH |
1019 | skb_reserve(skb, NET_IP_ALIGN); |
1020 | skge_rx_setup(skge, e, skb, skge->rx_buf_size); | |
67777f9b | 1021 | } while ((e = e->next) != ring->start); |
baef58b1 | 1022 | |
19a33d4e SH |
1023 | ring->to_clean = ring->start; |
1024 | return 0; | |
baef58b1 SH |
1025 | } |
1026 | ||
5d5c8e03 SH |
1027 | static const char *skge_pause(enum pause_status status) |
1028 | { | |
67777f9b | 1029 | switch (status) { |
5d5c8e03 SH |
1030 | case FLOW_STAT_NONE: |
1031 | return "none"; | |
1032 | case FLOW_STAT_REM_SEND: | |
1033 | return "rx only"; | |
1034 | case FLOW_STAT_LOC_SEND: | |
1035 | return "tx_only"; | |
1036 | case FLOW_STAT_SYMMETRIC: /* Both station may send PAUSE */ | |
1037 | return "both"; | |
1038 | default: | |
1039 | return "indeterminated"; | |
1040 | } | |
1041 | } | |
1042 | ||
1043 | ||
baef58b1 SH |
1044 | static void skge_link_up(struct skge_port *skge) |
1045 | { | |
46a60f2d | 1046 | skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), |
54cfb5aa SH |
1047 | LED_BLK_OFF|LED_SYNC_OFF|LED_ON); |
1048 | ||
baef58b1 | 1049 | netif_carrier_on(skge->netdev); |
29b4e886 | 1050 | netif_wake_queue(skge->netdev); |
baef58b1 | 1051 | |
d707204c JP |
1052 | netif_info(skge, link, skge->netdev, |
1053 | "Link is up at %d Mbps, %s duplex, flow control %s\n", | |
1054 | skge->speed, | |
1055 | skge->duplex == DUPLEX_FULL ? "full" : "half", | |
1056 | skge_pause(skge->flow_status)); | |
baef58b1 SH |
1057 | } |
1058 | ||
1059 | static void skge_link_down(struct skge_port *skge) | |
1060 | { | |
54cfb5aa | 1061 | skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF); |
baef58b1 SH |
1062 | netif_carrier_off(skge->netdev); |
1063 | netif_stop_queue(skge->netdev); | |
1064 | ||
d707204c | 1065 | netif_info(skge, link, skge->netdev, "Link is down\n"); |
baef58b1 SH |
1066 | } |
1067 | ||
a1bc9b87 SH |
1068 | static void xm_link_down(struct skge_hw *hw, int port) |
1069 | { | |
1070 | struct net_device *dev = hw->dev[port]; | |
1071 | struct skge_port *skge = netdev_priv(dev); | |
a1bc9b87 | 1072 | |
501fb72d | 1073 | xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE); |
a1bc9b87 | 1074 | |
a1bc9b87 SH |
1075 | if (netif_carrier_ok(dev)) |
1076 | skge_link_down(skge); | |
1077 | } | |
1078 | ||
2cd8e5d3 | 1079 | static int __xm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val) |
baef58b1 SH |
1080 | { |
1081 | int i; | |
baef58b1 | 1082 | |
6b0c1480 | 1083 | xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); |
0781191c | 1084 | *val = xm_read16(hw, port, XM_PHY_DATA); |
baef58b1 | 1085 | |
64f6b64d SH |
1086 | if (hw->phy_type == SK_PHY_XMAC) |
1087 | goto ready; | |
1088 | ||
89bf5f23 | 1089 | for (i = 0; i < PHY_RETRIES; i++) { |
2cd8e5d3 | 1090 | if (xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_RDY) |
89bf5f23 | 1091 | goto ready; |
0781191c | 1092 | udelay(1); |
baef58b1 SH |
1093 | } |
1094 | ||
2cd8e5d3 | 1095 | return -ETIMEDOUT; |
89bf5f23 | 1096 | ready: |
2cd8e5d3 | 1097 | *val = xm_read16(hw, port, XM_PHY_DATA); |
89bf5f23 | 1098 | |
2cd8e5d3 SH |
1099 | return 0; |
1100 | } | |
1101 | ||
1102 | static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg) | |
1103 | { | |
1104 | u16 v = 0; | |
1105 | if (__xm_phy_read(hw, port, reg, &v)) | |
f15063cd | 1106 | pr_warning("%s: phy read timed out\n", hw->dev[port]->name); |
baef58b1 SH |
1107 | return v; |
1108 | } | |
1109 | ||
2cd8e5d3 | 1110 | static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) |
baef58b1 SH |
1111 | { |
1112 | int i; | |
1113 | ||
6b0c1480 | 1114 | xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); |
baef58b1 | 1115 | for (i = 0; i < PHY_RETRIES; i++) { |
6b0c1480 | 1116 | if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) |
baef58b1 | 1117 | goto ready; |
89bf5f23 | 1118 | udelay(1); |
baef58b1 | 1119 | } |
2cd8e5d3 | 1120 | return -EIO; |
baef58b1 SH |
1121 | |
1122 | ready: | |
6b0c1480 | 1123 | xm_write16(hw, port, XM_PHY_DATA, val); |
0781191c SH |
1124 | for (i = 0; i < PHY_RETRIES; i++) { |
1125 | if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) | |
1126 | return 0; | |
1127 | udelay(1); | |
1128 | } | |
1129 | return -ETIMEDOUT; | |
baef58b1 SH |
1130 | } |
1131 | ||
1132 | static void genesis_init(struct skge_hw *hw) | |
1133 | { | |
1134 | /* set blink source counter */ | |
1135 | skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100); | |
1136 | skge_write8(hw, B2_BSC_CTRL, BSC_START); | |
1137 | ||
1138 | /* configure mac arbiter */ | |
1139 | skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR); | |
1140 | ||
1141 | /* configure mac arbiter timeout values */ | |
1142 | skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53); | |
1143 | skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53); | |
1144 | skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53); | |
1145 | skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53); | |
1146 | ||
1147 | skge_write8(hw, B3_MA_RCINI_RX1, 0); | |
1148 | skge_write8(hw, B3_MA_RCINI_RX2, 0); | |
1149 | skge_write8(hw, B3_MA_RCINI_TX1, 0); | |
1150 | skge_write8(hw, B3_MA_RCINI_TX2, 0); | |
1151 | ||
1152 | /* configure packet arbiter timeout */ | |
1153 | skge_write16(hw, B3_PA_CTRL, PA_RST_CLR); | |
1154 | skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX); | |
1155 | skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX); | |
1156 | skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX); | |
1157 | skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX); | |
1158 | } | |
1159 | ||
1160 | static void genesis_reset(struct skge_hw *hw, int port) | |
1161 | { | |
b6bc7650 | 1162 | static const u8 zero[8] = { 0 }; |
21d7f677 | 1163 | u32 reg; |
baef58b1 | 1164 | |
46a60f2d SH |
1165 | skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); |
1166 | ||
baef58b1 | 1167 | /* reset the statistics module */ |
6b0c1480 | 1168 | xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT); |
501fb72d | 1169 | xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE); |
6b0c1480 SH |
1170 | xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */ |
1171 | xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */ | |
1172 | xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */ | |
baef58b1 | 1173 | |
89bf5f23 | 1174 | /* disable Broadcom PHY IRQ */ |
64f6b64d SH |
1175 | if (hw->phy_type == SK_PHY_BCOM) |
1176 | xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff); | |
baef58b1 | 1177 | |
45bada65 | 1178 | xm_outhash(hw, port, XM_HSM, zero); |
21d7f677 SH |
1179 | |
1180 | /* Flush TX and RX fifo */ | |
1181 | reg = xm_read32(hw, port, XM_MODE); | |
1182 | xm_write32(hw, port, XM_MODE, reg | XM_MD_FTF); | |
1183 | xm_write32(hw, port, XM_MODE, reg | XM_MD_FRF); | |
baef58b1 SH |
1184 | } |
1185 | ||
45bada65 SH |
1186 | /* Convert mode to MII values */ |
1187 | static const u16 phy_pause_map[] = { | |
1188 | [FLOW_MODE_NONE] = 0, | |
1189 | [FLOW_MODE_LOC_SEND] = PHY_AN_PAUSE_ASYM, | |
1190 | [FLOW_MODE_SYMMETRIC] = PHY_AN_PAUSE_CAP, | |
5d5c8e03 | 1191 | [FLOW_MODE_SYM_OR_REM] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM, |
45bada65 SH |
1192 | }; |
1193 | ||
4b67be99 SH |
1194 | /* special defines for FIBER (88E1011S only) */ |
1195 | static const u16 fiber_pause_map[] = { | |
1196 | [FLOW_MODE_NONE] = PHY_X_P_NO_PAUSE, | |
1197 | [FLOW_MODE_LOC_SEND] = PHY_X_P_ASYM_MD, | |
1198 | [FLOW_MODE_SYMMETRIC] = PHY_X_P_SYM_MD, | |
5d5c8e03 | 1199 | [FLOW_MODE_SYM_OR_REM] = PHY_X_P_BOTH_MD, |
4b67be99 SH |
1200 | }; |
1201 | ||
45bada65 SH |
1202 | |
1203 | /* Check status of Broadcom phy link */ | |
1204 | static void bcom_check_link(struct skge_hw *hw, int port) | |
baef58b1 | 1205 | { |
45bada65 SH |
1206 | struct net_device *dev = hw->dev[port]; |
1207 | struct skge_port *skge = netdev_priv(dev); | |
1208 | u16 status; | |
1209 | ||
1210 | /* read twice because of latch */ | |
501fb72d | 1211 | xm_phy_read(hw, port, PHY_BCOM_STAT); |
45bada65 SH |
1212 | status = xm_phy_read(hw, port, PHY_BCOM_STAT); |
1213 | ||
45bada65 | 1214 | if ((status & PHY_ST_LSYNC) == 0) { |
a1bc9b87 | 1215 | xm_link_down(hw, port); |
64f6b64d SH |
1216 | return; |
1217 | } | |
45bada65 | 1218 | |
64f6b64d SH |
1219 | if (skge->autoneg == AUTONEG_ENABLE) { |
1220 | u16 lpa, aux; | |
45bada65 | 1221 | |
64f6b64d SH |
1222 | if (!(status & PHY_ST_AN_OVER)) |
1223 | return; | |
45bada65 | 1224 | |
64f6b64d SH |
1225 | lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP); |
1226 | if (lpa & PHY_B_AN_RF) { | |
f15063cd | 1227 | netdev_notice(dev, "remote fault\n"); |
64f6b64d SH |
1228 | return; |
1229 | } | |
45bada65 | 1230 | |
64f6b64d SH |
1231 | aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT); |
1232 | ||
1233 | /* Check Duplex mismatch */ | |
1234 | switch (aux & PHY_B_AS_AN_RES_MSK) { | |
1235 | case PHY_B_RES_1000FD: | |
1236 | skge->duplex = DUPLEX_FULL; | |
1237 | break; | |
1238 | case PHY_B_RES_1000HD: | |
1239 | skge->duplex = DUPLEX_HALF; | |
1240 | break; | |
1241 | default: | |
f15063cd | 1242 | netdev_notice(dev, "duplex mismatch\n"); |
64f6b64d | 1243 | return; |
45bada65 SH |
1244 | } |
1245 | ||
64f6b64d SH |
1246 | /* We are using IEEE 802.3z/D5.0 Table 37-4 */ |
1247 | switch (aux & PHY_B_AS_PAUSE_MSK) { | |
1248 | case PHY_B_AS_PAUSE_MSK: | |
5d5c8e03 | 1249 | skge->flow_status = FLOW_STAT_SYMMETRIC; |
64f6b64d SH |
1250 | break; |
1251 | case PHY_B_AS_PRR: | |
5d5c8e03 | 1252 | skge->flow_status = FLOW_STAT_REM_SEND; |
64f6b64d SH |
1253 | break; |
1254 | case PHY_B_AS_PRT: | |
5d5c8e03 | 1255 | skge->flow_status = FLOW_STAT_LOC_SEND; |
64f6b64d SH |
1256 | break; |
1257 | default: | |
5d5c8e03 | 1258 | skge->flow_status = FLOW_STAT_NONE; |
64f6b64d SH |
1259 | } |
1260 | skge->speed = SPEED_1000; | |
45bada65 | 1261 | } |
64f6b64d SH |
1262 | |
1263 | if (!netif_carrier_ok(dev)) | |
1264 | genesis_link_up(skge); | |
45bada65 SH |
1265 | } |
1266 | ||
1267 | /* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional | |
1268 | * Phy on for 100 or 10Mbit operation | |
1269 | */ | |
64f6b64d | 1270 | static void bcom_phy_init(struct skge_port *skge) |
45bada65 SH |
1271 | { |
1272 | struct skge_hw *hw = skge->hw; | |
1273 | int port = skge->port; | |
baef58b1 | 1274 | int i; |
45bada65 | 1275 | u16 id1, r, ext, ctl; |
baef58b1 SH |
1276 | |
1277 | /* magic workaround patterns for Broadcom */ | |
1278 | static const struct { | |
1279 | u16 reg; | |
1280 | u16 val; | |
1281 | } A1hack[] = { | |
1282 | { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 }, | |
1283 | { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 }, | |
1284 | { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 }, | |
1285 | { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 }, | |
1286 | }, C0hack[] = { | |
1287 | { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 }, | |
1288 | { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 }, | |
1289 | }; | |
1290 | ||
45bada65 SH |
1291 | /* read Id from external PHY (all have the same address) */ |
1292 | id1 = xm_phy_read(hw, port, PHY_XMAC_ID1); | |
1293 | ||
1294 | /* Optimize MDIO transfer by suppressing preamble. */ | |
1295 | r = xm_read16(hw, port, XM_MMU_CMD); | |
1296 | r |= XM_MMU_NO_PRE; | |
67777f9b | 1297 | xm_write16(hw, port, XM_MMU_CMD, r); |
45bada65 | 1298 | |
2c668514 | 1299 | switch (id1) { |
45bada65 SH |
1300 | case PHY_BCOM_ID1_C0: |
1301 | /* | |
1302 | * Workaround BCOM Errata for the C0 type. | |
1303 | * Write magic patterns to reserved registers. | |
1304 | */ | |
1305 | for (i = 0; i < ARRAY_SIZE(C0hack); i++) | |
1306 | xm_phy_write(hw, port, | |
1307 | C0hack[i].reg, C0hack[i].val); | |
1308 | ||
1309 | break; | |
1310 | case PHY_BCOM_ID1_A1: | |
1311 | /* | |
1312 | * Workaround BCOM Errata for the A1 type. | |
1313 | * Write magic patterns to reserved registers. | |
1314 | */ | |
1315 | for (i = 0; i < ARRAY_SIZE(A1hack); i++) | |
1316 | xm_phy_write(hw, port, | |
1317 | A1hack[i].reg, A1hack[i].val); | |
1318 | break; | |
1319 | } | |
1320 | ||
1321 | /* | |
1322 | * Workaround BCOM Errata (#10523) for all BCom PHYs. | |
1323 | * Disable Power Management after reset. | |
1324 | */ | |
1325 | r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL); | |
1326 | r |= PHY_B_AC_DIS_PM; | |
1327 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r); | |
1328 | ||
1329 | /* Dummy read */ | |
1330 | xm_read16(hw, port, XM_ISRC); | |
1331 | ||
1332 | ext = PHY_B_PEC_EN_LTR; /* enable tx led */ | |
1333 | ctl = PHY_CT_SP1000; /* always 1000mbit */ | |
1334 | ||
1335 | if (skge->autoneg == AUTONEG_ENABLE) { | |
1336 | /* | |
1337 | * Workaround BCOM Errata #1 for the C5 type. | |
1338 | * 1000Base-T Link Acquisition Failure in Slave Mode | |
1339 | * Set Repeater/DTE bit 10 of the 1000Base-T Control Register | |
1340 | */ | |
1341 | u16 adv = PHY_B_1000C_RD; | |
1342 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1343 | adv |= PHY_B_1000C_AHD; | |
1344 | if (skge->advertising & ADVERTISED_1000baseT_Full) | |
1345 | adv |= PHY_B_1000C_AFD; | |
1346 | xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, adv); | |
1347 | ||
1348 | ctl |= PHY_CT_ANE | PHY_CT_RE_CFG; | |
1349 | } else { | |
1350 | if (skge->duplex == DUPLEX_FULL) | |
1351 | ctl |= PHY_CT_DUP_MD; | |
1352 | /* Force to slave */ | |
1353 | xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, PHY_B_1000C_MSE); | |
1354 | } | |
1355 | ||
1356 | /* Set autonegotiation pause parameters */ | |
1357 | xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV, | |
1358 | phy_pause_map[skge->flow_control] | PHY_AN_CSMA); | |
1359 | ||
1360 | /* Handle Jumbo frames */ | |
64f6b64d | 1361 | if (hw->dev[port]->mtu > ETH_DATA_LEN) { |
45bada65 SH |
1362 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, |
1363 | PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK); | |
1364 | ||
1365 | ext |= PHY_B_PEC_HIGH_LA; | |
1366 | ||
1367 | } | |
1368 | ||
1369 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ext); | |
1370 | xm_phy_write(hw, port, PHY_BCOM_CTRL, ctl); | |
1371 | ||
8f3f8193 | 1372 | /* Use link status change interrupt */ |
45bada65 | 1373 | xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); |
64f6b64d | 1374 | } |
45bada65 | 1375 | |
64f6b64d SH |
1376 | static void xm_phy_init(struct skge_port *skge) |
1377 | { | |
1378 | struct skge_hw *hw = skge->hw; | |
1379 | int port = skge->port; | |
1380 | u16 ctrl = 0; | |
1381 | ||
1382 | if (skge->autoneg == AUTONEG_ENABLE) { | |
1383 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1384 | ctrl |= PHY_X_AN_HD; | |
1385 | if (skge->advertising & ADVERTISED_1000baseT_Full) | |
1386 | ctrl |= PHY_X_AN_FD; | |
1387 | ||
4b67be99 | 1388 | ctrl |= fiber_pause_map[skge->flow_control]; |
64f6b64d SH |
1389 | |
1390 | xm_phy_write(hw, port, PHY_XMAC_AUNE_ADV, ctrl); | |
1391 | ||
1392 | /* Restart Auto-negotiation */ | |
1393 | ctrl = PHY_CT_ANE | PHY_CT_RE_CFG; | |
1394 | } else { | |
1395 | /* Set DuplexMode in Config register */ | |
1396 | if (skge->duplex == DUPLEX_FULL) | |
1397 | ctrl |= PHY_CT_DUP_MD; | |
1398 | /* | |
1399 | * Do NOT enable Auto-negotiation here. This would hold | |
1400 | * the link down because no IDLEs are transmitted | |
1401 | */ | |
1402 | } | |
1403 | ||
1404 | xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl); | |
1405 | ||
1406 | /* Poll PHY for status changes */ | |
9cbe330f | 1407 | mod_timer(&skge->link_timer, jiffies + LINK_HZ); |
64f6b64d SH |
1408 | } |
1409 | ||
501fb72d | 1410 | static int xm_check_link(struct net_device *dev) |
64f6b64d SH |
1411 | { |
1412 | struct skge_port *skge = netdev_priv(dev); | |
1413 | struct skge_hw *hw = skge->hw; | |
1414 | int port = skge->port; | |
1415 | u16 status; | |
1416 | ||
1417 | /* read twice because of latch */ | |
501fb72d | 1418 | xm_phy_read(hw, port, PHY_XMAC_STAT); |
64f6b64d SH |
1419 | status = xm_phy_read(hw, port, PHY_XMAC_STAT); |
1420 | ||
1421 | if ((status & PHY_ST_LSYNC) == 0) { | |
a1bc9b87 | 1422 | xm_link_down(hw, port); |
501fb72d | 1423 | return 0; |
64f6b64d SH |
1424 | } |
1425 | ||
1426 | if (skge->autoneg == AUTONEG_ENABLE) { | |
1427 | u16 lpa, res; | |
1428 | ||
1429 | if (!(status & PHY_ST_AN_OVER)) | |
501fb72d | 1430 | return 0; |
64f6b64d SH |
1431 | |
1432 | lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP); | |
1433 | if (lpa & PHY_B_AN_RF) { | |
f15063cd | 1434 | netdev_notice(dev, "remote fault\n"); |
501fb72d | 1435 | return 0; |
64f6b64d SH |
1436 | } |
1437 | ||
1438 | res = xm_phy_read(hw, port, PHY_XMAC_RES_ABI); | |
1439 | ||
1440 | /* Check Duplex mismatch */ | |
1441 | switch (res & (PHY_X_RS_HD | PHY_X_RS_FD)) { | |
1442 | case PHY_X_RS_FD: | |
1443 | skge->duplex = DUPLEX_FULL; | |
1444 | break; | |
1445 | case PHY_X_RS_HD: | |
1446 | skge->duplex = DUPLEX_HALF; | |
1447 | break; | |
1448 | default: | |
f15063cd | 1449 | netdev_notice(dev, "duplex mismatch\n"); |
501fb72d | 1450 | return 0; |
64f6b64d SH |
1451 | } |
1452 | ||
1453 | /* We are using IEEE 802.3z/D5.0 Table 37-4 */ | |
5d5c8e03 SH |
1454 | if ((skge->flow_control == FLOW_MODE_SYMMETRIC || |
1455 | skge->flow_control == FLOW_MODE_SYM_OR_REM) && | |
1456 | (lpa & PHY_X_P_SYM_MD)) | |
1457 | skge->flow_status = FLOW_STAT_SYMMETRIC; | |
1458 | else if (skge->flow_control == FLOW_MODE_SYM_OR_REM && | |
1459 | (lpa & PHY_X_RS_PAUSE) == PHY_X_P_ASYM_MD) | |
1460 | /* Enable PAUSE receive, disable PAUSE transmit */ | |
1461 | skge->flow_status = FLOW_STAT_REM_SEND; | |
1462 | else if (skge->flow_control == FLOW_MODE_LOC_SEND && | |
1463 | (lpa & PHY_X_RS_PAUSE) == PHY_X_P_BOTH_MD) | |
1464 | /* Disable PAUSE receive, enable PAUSE transmit */ | |
1465 | skge->flow_status = FLOW_STAT_LOC_SEND; | |
64f6b64d | 1466 | else |
5d5c8e03 | 1467 | skge->flow_status = FLOW_STAT_NONE; |
64f6b64d SH |
1468 | |
1469 | skge->speed = SPEED_1000; | |
1470 | } | |
1471 | ||
1472 | if (!netif_carrier_ok(dev)) | |
1473 | genesis_link_up(skge); | |
501fb72d | 1474 | return 1; |
64f6b64d SH |
1475 | } |
1476 | ||
1477 | /* Poll to check for link coming up. | |
501fb72d | 1478 | * |
64f6b64d | 1479 | * Since internal PHY is wired to a level triggered pin, can't |
501fb72d SH |
1480 | * get an interrupt when carrier is detected, need to poll for |
1481 | * link coming up. | |
64f6b64d | 1482 | */ |
9cbe330f | 1483 | static void xm_link_timer(unsigned long arg) |
64f6b64d | 1484 | { |
9cbe330f | 1485 | struct skge_port *skge = (struct skge_port *) arg; |
c4028958 | 1486 | struct net_device *dev = skge->netdev; |
67777f9b | 1487 | struct skge_hw *hw = skge->hw; |
64f6b64d | 1488 | int port = skge->port; |
501fb72d SH |
1489 | int i; |
1490 | unsigned long flags; | |
64f6b64d SH |
1491 | |
1492 | if (!netif_running(dev)) | |
1493 | return; | |
1494 | ||
501fb72d SH |
1495 | spin_lock_irqsave(&hw->phy_lock, flags); |
1496 | ||
1497 | /* | |
1498 | * Verify that the link by checking GPIO register three times. | |
1499 | * This pin has the signal from the link_sync pin connected to it. | |
1500 | */ | |
1501 | for (i = 0; i < 3; i++) { | |
1502 | if (xm_read16(hw, port, XM_GP_PORT) & XM_GP_INP_ASS) | |
1503 | goto link_down; | |
1504 | } | |
1505 | ||
67777f9b | 1506 | /* Re-enable interrupt to detect link down */ |
501fb72d SH |
1507 | if (xm_check_link(dev)) { |
1508 | u16 msk = xm_read16(hw, port, XM_IMSK); | |
1509 | msk &= ~XM_IS_INP_ASS; | |
1510 | xm_write16(hw, port, XM_IMSK, msk); | |
64f6b64d | 1511 | xm_read16(hw, port, XM_ISRC); |
64f6b64d | 1512 | } else { |
501fb72d SH |
1513 | link_down: |
1514 | mod_timer(&skge->link_timer, | |
1515 | round_jiffies(jiffies + LINK_HZ)); | |
64f6b64d | 1516 | } |
501fb72d | 1517 | spin_unlock_irqrestore(&hw->phy_lock, flags); |
45bada65 SH |
1518 | } |
1519 | ||
1520 | static void genesis_mac_init(struct skge_hw *hw, int port) | |
1521 | { | |
1522 | struct net_device *dev = hw->dev[port]; | |
1523 | struct skge_port *skge = netdev_priv(dev); | |
1524 | int jumbo = hw->dev[port]->mtu > ETH_DATA_LEN; | |
1525 | int i; | |
1526 | u32 r; | |
b6bc7650 | 1527 | static const u8 zero[6] = { 0 }; |
45bada65 | 1528 | |
0781191c SH |
1529 | for (i = 0; i < 10; i++) { |
1530 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), | |
1531 | MFF_SET_MAC_RST); | |
1532 | if (skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST) | |
1533 | goto reset_ok; | |
1534 | udelay(1); | |
1535 | } | |
baef58b1 | 1536 | |
f15063cd | 1537 | netdev_warn(dev, "genesis reset failed\n"); |
0781191c SH |
1538 | |
1539 | reset_ok: | |
baef58b1 | 1540 | /* Unreset the XMAC. */ |
6b0c1480 | 1541 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST); |
baef58b1 SH |
1542 | |
1543 | /* | |
1544 | * Perform additional initialization for external PHYs, | |
1545 | * namely for the 1000baseTX cards that use the XMAC's | |
1546 | * GMII mode. | |
1547 | */ | |
64f6b64d SH |
1548 | if (hw->phy_type != SK_PHY_XMAC) { |
1549 | /* Take external Phy out of reset */ | |
1550 | r = skge_read32(hw, B2_GP_IO); | |
1551 | if (port == 0) | |
1552 | r |= GP_DIR_0|GP_IO_0; | |
1553 | else | |
1554 | r |= GP_DIR_2|GP_IO_2; | |
89bf5f23 | 1555 | |
64f6b64d | 1556 | skge_write32(hw, B2_GP_IO, r); |
0781191c | 1557 | |
64f6b64d SH |
1558 | /* Enable GMII interface */ |
1559 | xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD); | |
1560 | } | |
89bf5f23 | 1561 | |
89bf5f23 | 1562 | |
67777f9b | 1563 | switch (hw->phy_type) { |
64f6b64d SH |
1564 | case SK_PHY_XMAC: |
1565 | xm_phy_init(skge); | |
1566 | break; | |
1567 | case SK_PHY_BCOM: | |
1568 | bcom_phy_init(skge); | |
1569 | bcom_check_link(hw, port); | |
1570 | } | |
89bf5f23 | 1571 | |
45bada65 SH |
1572 | /* Set Station Address */ |
1573 | xm_outaddr(hw, port, XM_SA, dev->dev_addr); | |
89bf5f23 | 1574 | |
45bada65 SH |
1575 | /* We don't use match addresses so clear */ |
1576 | for (i = 1; i < 16; i++) | |
1577 | xm_outaddr(hw, port, XM_EXM(i), zero); | |
1578 | ||
0781191c SH |
1579 | /* Clear MIB counters */ |
1580 | xm_write16(hw, port, XM_STAT_CMD, | |
1581 | XM_SC_CLR_RXC | XM_SC_CLR_TXC); | |
1582 | /* Clear two times according to Errata #3 */ | |
1583 | xm_write16(hw, port, XM_STAT_CMD, | |
1584 | XM_SC_CLR_RXC | XM_SC_CLR_TXC); | |
1585 | ||
45bada65 SH |
1586 | /* configure Rx High Water Mark (XM_RX_HI_WM) */ |
1587 | xm_write16(hw, port, XM_RX_HI_WM, 1450); | |
1588 | ||
1589 | /* We don't need the FCS appended to the packet. */ | |
1590 | r = XM_RX_LENERR_OK | XM_RX_STRIP_FCS; | |
1591 | if (jumbo) | |
1592 | r |= XM_RX_BIG_PK_OK; | |
89bf5f23 | 1593 | |
45bada65 | 1594 | if (skge->duplex == DUPLEX_HALF) { |
89bf5f23 | 1595 | /* |
45bada65 SH |
1596 | * If in manual half duplex mode the other side might be in |
1597 | * full duplex mode, so ignore if a carrier extension is not seen | |
1598 | * on frames received | |
89bf5f23 | 1599 | */ |
45bada65 | 1600 | r |= XM_RX_DIS_CEXT; |
baef58b1 | 1601 | } |
45bada65 | 1602 | xm_write16(hw, port, XM_RX_CMD, r); |
baef58b1 | 1603 | |
baef58b1 | 1604 | /* We want short frames padded to 60 bytes. */ |
45bada65 SH |
1605 | xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD); |
1606 | ||
485982a9 SH |
1607 | /* Increase threshold for jumbo frames on dual port */ |
1608 | if (hw->ports > 1 && jumbo) | |
1609 | xm_write16(hw, port, XM_TX_THR, 1020); | |
1610 | else | |
1611 | xm_write16(hw, port, XM_TX_THR, 512); | |
baef58b1 SH |
1612 | |
1613 | /* | |
1614 | * Enable the reception of all error frames. This is is | |
1615 | * a necessary evil due to the design of the XMAC. The | |
1616 | * XMAC's receive FIFO is only 8K in size, however jumbo | |
1617 | * frames can be up to 9000 bytes in length. When bad | |
1618 | * frame filtering is enabled, the XMAC's RX FIFO operates | |
1619 | * in 'store and forward' mode. For this to work, the | |
1620 | * entire frame has to fit into the FIFO, but that means | |
1621 | * that jumbo frames larger than 8192 bytes will be | |
1622 | * truncated. Disabling all bad frame filtering causes | |
1623 | * the RX FIFO to operate in streaming mode, in which | |
8f3f8193 | 1624 | * case the XMAC will start transferring frames out of the |
baef58b1 SH |
1625 | * RX FIFO as soon as the FIFO threshold is reached. |
1626 | */ | |
45bada65 | 1627 | xm_write32(hw, port, XM_MODE, XM_DEF_MODE); |
baef58b1 | 1628 | |
baef58b1 SH |
1629 | |
1630 | /* | |
45bada65 SH |
1631 | * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK) |
1632 | * - Enable all bits excepting 'Octets Rx OK Low CntOv' | |
1633 | * and 'Octets Rx OK Hi Cnt Ov'. | |
baef58b1 | 1634 | */ |
45bada65 SH |
1635 | xm_write32(hw, port, XM_RX_EV_MSK, XMR_DEF_MSK); |
1636 | ||
1637 | /* | |
1638 | * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK) | |
1639 | * - Enable all bits excepting 'Octets Tx OK Low CntOv' | |
1640 | * and 'Octets Tx OK Hi Cnt Ov'. | |
1641 | */ | |
1642 | xm_write32(hw, port, XM_TX_EV_MSK, XMT_DEF_MSK); | |
baef58b1 SH |
1643 | |
1644 | /* Configure MAC arbiter */ | |
1645 | skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR); | |
1646 | ||
1647 | /* configure timeout values */ | |
1648 | skge_write8(hw, B3_MA_TOINI_RX1, 72); | |
1649 | skge_write8(hw, B3_MA_TOINI_RX2, 72); | |
1650 | skge_write8(hw, B3_MA_TOINI_TX1, 72); | |
1651 | skge_write8(hw, B3_MA_TOINI_TX2, 72); | |
1652 | ||
1653 | skge_write8(hw, B3_MA_RCINI_RX1, 0); | |
1654 | skge_write8(hw, B3_MA_RCINI_RX2, 0); | |
1655 | skge_write8(hw, B3_MA_RCINI_TX1, 0); | |
1656 | skge_write8(hw, B3_MA_RCINI_TX2, 0); | |
1657 | ||
1658 | /* Configure Rx MAC FIFO */ | |
6b0c1480 SH |
1659 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR); |
1660 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT); | |
1661 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD); | |
baef58b1 SH |
1662 | |
1663 | /* Configure Tx MAC FIFO */ | |
6b0c1480 SH |
1664 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR); |
1665 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF); | |
1666 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD); | |
baef58b1 | 1667 | |
45bada65 | 1668 | if (jumbo) { |
baef58b1 | 1669 | /* Enable frame flushing if jumbo frames used */ |
67777f9b | 1670 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_FLUSH); |
baef58b1 SH |
1671 | } else { |
1672 | /* enable timeout timers if normal frames */ | |
1673 | skge_write16(hw, B3_PA_CTRL, | |
45bada65 | 1674 | (port == 0) ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2); |
baef58b1 | 1675 | } |
baef58b1 SH |
1676 | } |
1677 | ||
1678 | static void genesis_stop(struct skge_port *skge) | |
1679 | { | |
1680 | struct skge_hw *hw = skge->hw; | |
1681 | int port = skge->port; | |
799b21d2 | 1682 | unsigned retries = 1000; |
21d7f677 SH |
1683 | u16 cmd; |
1684 | ||
67777f9b | 1685 | /* Disable Tx and Rx */ |
21d7f677 SH |
1686 | cmd = xm_read16(hw, port, XM_MMU_CMD); |
1687 | cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX); | |
1688 | xm_write16(hw, port, XM_MMU_CMD, cmd); | |
baef58b1 | 1689 | |
46a60f2d SH |
1690 | genesis_reset(hw, port); |
1691 | ||
baef58b1 SH |
1692 | /* Clear Tx packet arbiter timeout IRQ */ |
1693 | skge_write16(hw, B3_PA_CTRL, | |
1694 | port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2); | |
1695 | ||
baef58b1 | 1696 | /* Reset the MAC */ |
799b21d2 SH |
1697 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST); |
1698 | do { | |
1699 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST); | |
1700 | if (!(skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST)) | |
1701 | break; | |
1702 | } while (--retries > 0); | |
baef58b1 SH |
1703 | |
1704 | /* For external PHYs there must be special handling */ | |
64f6b64d | 1705 | if (hw->phy_type != SK_PHY_XMAC) { |
799b21d2 | 1706 | u32 reg = skge_read32(hw, B2_GP_IO); |
64f6b64d SH |
1707 | if (port == 0) { |
1708 | reg |= GP_DIR_0; | |
1709 | reg &= ~GP_IO_0; | |
1710 | } else { | |
1711 | reg |= GP_DIR_2; | |
1712 | reg &= ~GP_IO_2; | |
1713 | } | |
1714 | skge_write32(hw, B2_GP_IO, reg); | |
1715 | skge_read32(hw, B2_GP_IO); | |
baef58b1 SH |
1716 | } |
1717 | ||
6b0c1480 SH |
1718 | xm_write16(hw, port, XM_MMU_CMD, |
1719 | xm_read16(hw, port, XM_MMU_CMD) | |
baef58b1 SH |
1720 | & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX)); |
1721 | ||
6b0c1480 | 1722 | xm_read16(hw, port, XM_MMU_CMD); |
baef58b1 SH |
1723 | } |
1724 | ||
1725 | ||
1726 | static void genesis_get_stats(struct skge_port *skge, u64 *data) | |
1727 | { | |
1728 | struct skge_hw *hw = skge->hw; | |
1729 | int port = skge->port; | |
1730 | int i; | |
1731 | unsigned long timeout = jiffies + HZ; | |
1732 | ||
6b0c1480 | 1733 | xm_write16(hw, port, |
baef58b1 SH |
1734 | XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC); |
1735 | ||
1736 | /* wait for update to complete */ | |
6b0c1480 | 1737 | while (xm_read16(hw, port, XM_STAT_CMD) |
baef58b1 SH |
1738 | & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) { |
1739 | if (time_after(jiffies, timeout)) | |
1740 | break; | |
1741 | udelay(10); | |
1742 | } | |
1743 | ||
1744 | /* special case for 64 bit octet counter */ | |
6b0c1480 SH |
1745 | data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32 |
1746 | | xm_read32(hw, port, XM_TXO_OK_LO); | |
1747 | data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32 | |
1748 | | xm_read32(hw, port, XM_RXO_OK_LO); | |
baef58b1 SH |
1749 | |
1750 | for (i = 2; i < ARRAY_SIZE(skge_stats); i++) | |
6b0c1480 | 1751 | data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset); |
baef58b1 SH |
1752 | } |
1753 | ||
1754 | static void genesis_mac_intr(struct skge_hw *hw, int port) | |
1755 | { | |
da00772f SH |
1756 | struct net_device *dev = hw->dev[port]; |
1757 | struct skge_port *skge = netdev_priv(dev); | |
6b0c1480 | 1758 | u16 status = xm_read16(hw, port, XM_ISRC); |
baef58b1 | 1759 | |
d707204c JP |
1760 | netif_printk(skge, intr, KERN_DEBUG, skge->netdev, |
1761 | "mac interrupt status 0x%x\n", status); | |
baef58b1 | 1762 | |
501fb72d | 1763 | if (hw->phy_type == SK_PHY_XMAC && (status & XM_IS_INP_ASS)) { |
67777f9b | 1764 | xm_link_down(hw, port); |
501fb72d SH |
1765 | mod_timer(&skge->link_timer, jiffies + 1); |
1766 | } | |
a1bc9b87 | 1767 | |
baef58b1 | 1768 | if (status & XM_IS_TXF_UR) { |
6b0c1480 | 1769 | xm_write32(hw, port, XM_MODE, XM_MD_FTF); |
da00772f | 1770 | ++dev->stats.tx_fifo_errors; |
baef58b1 | 1771 | } |
baef58b1 SH |
1772 | } |
1773 | ||
baef58b1 SH |
1774 | static void genesis_link_up(struct skge_port *skge) |
1775 | { | |
1776 | struct skge_hw *hw = skge->hw; | |
1777 | int port = skge->port; | |
a1bc9b87 | 1778 | u16 cmd, msk; |
64f6b64d | 1779 | u32 mode; |
baef58b1 | 1780 | |
6b0c1480 | 1781 | cmd = xm_read16(hw, port, XM_MMU_CMD); |
baef58b1 SH |
1782 | |
1783 | /* | |
1784 | * enabling pause frame reception is required for 1000BT | |
1785 | * because the XMAC is not reset if the link is going down | |
1786 | */ | |
5d5c8e03 SH |
1787 | if (skge->flow_status == FLOW_STAT_NONE || |
1788 | skge->flow_status == FLOW_STAT_LOC_SEND) | |
7e676d91 | 1789 | /* Disable Pause Frame Reception */ |
baef58b1 SH |
1790 | cmd |= XM_MMU_IGN_PF; |
1791 | else | |
1792 | /* Enable Pause Frame Reception */ | |
1793 | cmd &= ~XM_MMU_IGN_PF; | |
1794 | ||
6b0c1480 | 1795 | xm_write16(hw, port, XM_MMU_CMD, cmd); |
baef58b1 | 1796 | |
6b0c1480 | 1797 | mode = xm_read32(hw, port, XM_MODE); |
67777f9b | 1798 | if (skge->flow_status == FLOW_STAT_SYMMETRIC || |
5d5c8e03 | 1799 | skge->flow_status == FLOW_STAT_LOC_SEND) { |
baef58b1 SH |
1800 | /* |
1801 | * Configure Pause Frame Generation | |
1802 | * Use internal and external Pause Frame Generation. | |
1803 | * Sending pause frames is edge triggered. | |
1804 | * Send a Pause frame with the maximum pause time if | |
1805 | * internal oder external FIFO full condition occurs. | |
1806 | * Send a zero pause time frame to re-start transmission. | |
1807 | */ | |
1808 | /* XM_PAUSE_DA = '010000C28001' (default) */ | |
1809 | /* XM_MAC_PTIME = 0xffff (maximum) */ | |
1810 | /* remember this value is defined in big endian (!) */ | |
6b0c1480 | 1811 | xm_write16(hw, port, XM_MAC_PTIME, 0xffff); |
baef58b1 SH |
1812 | |
1813 | mode |= XM_PAUSE_MODE; | |
6b0c1480 | 1814 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE); |
baef58b1 SH |
1815 | } else { |
1816 | /* | |
1817 | * disable pause frame generation is required for 1000BT | |
1818 | * because the XMAC is not reset if the link is going down | |
1819 | */ | |
1820 | /* Disable Pause Mode in Mode Register */ | |
1821 | mode &= ~XM_PAUSE_MODE; | |
1822 | ||
6b0c1480 | 1823 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE); |
baef58b1 SH |
1824 | } |
1825 | ||
6b0c1480 | 1826 | xm_write32(hw, port, XM_MODE, mode); |
a1bc9b87 | 1827 | |
d08b9bdf | 1828 | /* Turn on detection of Tx underrun */ |
501fb72d | 1829 | msk = xm_read16(hw, port, XM_IMSK); |
d08b9bdf | 1830 | msk &= ~XM_IS_TXF_UR; |
a1bc9b87 | 1831 | xm_write16(hw, port, XM_IMSK, msk); |
501fb72d | 1832 | |
6b0c1480 | 1833 | xm_read16(hw, port, XM_ISRC); |
baef58b1 SH |
1834 | |
1835 | /* get MMU Command Reg. */ | |
6b0c1480 | 1836 | cmd = xm_read16(hw, port, XM_MMU_CMD); |
64f6b64d | 1837 | if (hw->phy_type != SK_PHY_XMAC && skge->duplex == DUPLEX_FULL) |
baef58b1 SH |
1838 | cmd |= XM_MMU_GMII_FD; |
1839 | ||
89bf5f23 SH |
1840 | /* |
1841 | * Workaround BCOM Errata (#10523) for all BCom Phys | |
1842 | * Enable Power Management after link up | |
1843 | */ | |
64f6b64d SH |
1844 | if (hw->phy_type == SK_PHY_BCOM) { |
1845 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, | |
1846 | xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL) | |
1847 | & ~PHY_B_AC_DIS_PM); | |
1848 | xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); | |
1849 | } | |
baef58b1 SH |
1850 | |
1851 | /* enable Rx/Tx */ | |
6b0c1480 | 1852 | xm_write16(hw, port, XM_MMU_CMD, |
baef58b1 SH |
1853 | cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX); |
1854 | skge_link_up(skge); | |
1855 | } | |
1856 | ||
1857 | ||
45bada65 | 1858 | static inline void bcom_phy_intr(struct skge_port *skge) |
baef58b1 SH |
1859 | { |
1860 | struct skge_hw *hw = skge->hw; | |
1861 | int port = skge->port; | |
45bada65 SH |
1862 | u16 isrc; |
1863 | ||
1864 | isrc = xm_phy_read(hw, port, PHY_BCOM_INT_STAT); | |
d707204c JP |
1865 | netif_printk(skge, intr, KERN_DEBUG, skge->netdev, |
1866 | "phy interrupt status 0x%x\n", isrc); | |
baef58b1 | 1867 | |
45bada65 | 1868 | if (isrc & PHY_B_IS_PSE) |
f15063cd | 1869 | pr_err("%s: uncorrectable pair swap error\n", |
45bada65 | 1870 | hw->dev[port]->name); |
baef58b1 SH |
1871 | |
1872 | /* Workaround BCom Errata: | |
1873 | * enable and disable loopback mode if "NO HCD" occurs. | |
1874 | */ | |
45bada65 | 1875 | if (isrc & PHY_B_IS_NO_HDCL) { |
6b0c1480 SH |
1876 | u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL); |
1877 | xm_phy_write(hw, port, PHY_BCOM_CTRL, | |
baef58b1 | 1878 | ctrl | PHY_CT_LOOP); |
6b0c1480 | 1879 | xm_phy_write(hw, port, PHY_BCOM_CTRL, |
baef58b1 SH |
1880 | ctrl & ~PHY_CT_LOOP); |
1881 | } | |
1882 | ||
45bada65 SH |
1883 | if (isrc & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) |
1884 | bcom_check_link(hw, port); | |
baef58b1 | 1885 | |
baef58b1 SH |
1886 | } |
1887 | ||
2cd8e5d3 SH |
1888 | static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) |
1889 | { | |
1890 | int i; | |
1891 | ||
1892 | gma_write16(hw, port, GM_SMI_DATA, val); | |
1893 | gma_write16(hw, port, GM_SMI_CTRL, | |
1894 | GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg)); | |
1895 | for (i = 0; i < PHY_RETRIES; i++) { | |
1896 | udelay(1); | |
1897 | ||
1898 | if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY)) | |
1899 | return 0; | |
1900 | } | |
1901 | ||
f15063cd | 1902 | pr_warning("%s: phy write timeout\n", hw->dev[port]->name); |
2cd8e5d3 SH |
1903 | return -EIO; |
1904 | } | |
1905 | ||
1906 | static int __gm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val) | |
1907 | { | |
1908 | int i; | |
1909 | ||
1910 | gma_write16(hw, port, GM_SMI_CTRL, | |
1911 | GM_SMI_CT_PHY_AD(hw->phy_addr) | |
1912 | | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD); | |
1913 | ||
1914 | for (i = 0; i < PHY_RETRIES; i++) { | |
1915 | udelay(1); | |
1916 | if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) | |
1917 | goto ready; | |
1918 | } | |
1919 | ||
1920 | return -ETIMEDOUT; | |
1921 | ready: | |
1922 | *val = gma_read16(hw, port, GM_SMI_DATA); | |
1923 | return 0; | |
1924 | } | |
1925 | ||
1926 | static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg) | |
1927 | { | |
1928 | u16 v = 0; | |
1929 | if (__gm_phy_read(hw, port, reg, &v)) | |
f15063cd | 1930 | pr_warning("%s: phy read timeout\n", hw->dev[port]->name); |
2cd8e5d3 SH |
1931 | return v; |
1932 | } | |
1933 | ||
8f3f8193 | 1934 | /* Marvell Phy Initialization */ |
baef58b1 SH |
1935 | static void yukon_init(struct skge_hw *hw, int port) |
1936 | { | |
1937 | struct skge_port *skge = netdev_priv(hw->dev[port]); | |
1938 | u16 ctrl, ct1000, adv; | |
baef58b1 | 1939 | |
baef58b1 | 1940 | if (skge->autoneg == AUTONEG_ENABLE) { |
6b0c1480 | 1941 | u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL); |
baef58b1 SH |
1942 | |
1943 | ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK | | |
1944 | PHY_M_EC_MAC_S_MSK); | |
1945 | ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ); | |
1946 | ||
c506a509 | 1947 | ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1); |
baef58b1 | 1948 | |
6b0c1480 | 1949 | gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl); |
baef58b1 SH |
1950 | } |
1951 | ||
6b0c1480 | 1952 | ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); |
baef58b1 SH |
1953 | if (skge->autoneg == AUTONEG_DISABLE) |
1954 | ctrl &= ~PHY_CT_ANE; | |
1955 | ||
1956 | ctrl |= PHY_CT_RESET; | |
6b0c1480 | 1957 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); |
baef58b1 SH |
1958 | |
1959 | ctrl = 0; | |
1960 | ct1000 = 0; | |
b18f2091 | 1961 | adv = PHY_AN_CSMA; |
baef58b1 SH |
1962 | |
1963 | if (skge->autoneg == AUTONEG_ENABLE) { | |
5e1705dd | 1964 | if (hw->copper) { |
baef58b1 SH |
1965 | if (skge->advertising & ADVERTISED_1000baseT_Full) |
1966 | ct1000 |= PHY_M_1000C_AFD; | |
1967 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1968 | ct1000 |= PHY_M_1000C_AHD; | |
1969 | if (skge->advertising & ADVERTISED_100baseT_Full) | |
1970 | adv |= PHY_M_AN_100_FD; | |
1971 | if (skge->advertising & ADVERTISED_100baseT_Half) | |
1972 | adv |= PHY_M_AN_100_HD; | |
1973 | if (skge->advertising & ADVERTISED_10baseT_Full) | |
1974 | adv |= PHY_M_AN_10_FD; | |
1975 | if (skge->advertising & ADVERTISED_10baseT_Half) | |
1976 | adv |= PHY_M_AN_10_HD; | |
baef58b1 | 1977 | |
4b67be99 SH |
1978 | /* Set Flow-control capabilities */ |
1979 | adv |= phy_pause_map[skge->flow_control]; | |
1980 | } else { | |
1981 | if (skge->advertising & ADVERTISED_1000baseT_Full) | |
1982 | adv |= PHY_M_AN_1000X_AFD; | |
1983 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1984 | adv |= PHY_M_AN_1000X_AHD; | |
1985 | ||
1986 | adv |= fiber_pause_map[skge->flow_control]; | |
1987 | } | |
45bada65 | 1988 | |
baef58b1 SH |
1989 | /* Restart Auto-negotiation */ |
1990 | ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG; | |
1991 | } else { | |
1992 | /* forced speed/duplex settings */ | |
1993 | ct1000 = PHY_M_1000C_MSE; | |
1994 | ||
1995 | if (skge->duplex == DUPLEX_FULL) | |
1996 | ctrl |= PHY_CT_DUP_MD; | |
1997 | ||
1998 | switch (skge->speed) { | |
1999 | case SPEED_1000: | |
2000 | ctrl |= PHY_CT_SP1000; | |
2001 | break; | |
2002 | case SPEED_100: | |
2003 | ctrl |= PHY_CT_SP100; | |
2004 | break; | |
2005 | } | |
2006 | ||
2007 | ctrl |= PHY_CT_RESET; | |
2008 | } | |
2009 | ||
c506a509 | 2010 | gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000); |
baef58b1 | 2011 | |
6b0c1480 SH |
2012 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv); |
2013 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
baef58b1 | 2014 | |
baef58b1 SH |
2015 | /* Enable phy interrupt on autonegotiation complete (or link up) */ |
2016 | if (skge->autoneg == AUTONEG_ENABLE) | |
4cde06ed | 2017 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_MSK); |
baef58b1 | 2018 | else |
4cde06ed | 2019 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK); |
baef58b1 SH |
2020 | } |
2021 | ||
2022 | static void yukon_reset(struct skge_hw *hw, int port) | |
2023 | { | |
6b0c1480 SH |
2024 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */ |
2025 | gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */ | |
2026 | gma_write16(hw, port, GM_MC_ADDR_H2, 0); | |
2027 | gma_write16(hw, port, GM_MC_ADDR_H3, 0); | |
2028 | gma_write16(hw, port, GM_MC_ADDR_H4, 0); | |
baef58b1 | 2029 | |
6b0c1480 SH |
2030 | gma_write16(hw, port, GM_RX_CTRL, |
2031 | gma_read16(hw, port, GM_RX_CTRL) | |
baef58b1 SH |
2032 | | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); |
2033 | } | |
2034 | ||
c8868611 SH |
2035 | /* Apparently, early versions of Yukon-Lite had wrong chip_id? */ |
2036 | static int is_yukon_lite_a0(struct skge_hw *hw) | |
2037 | { | |
2038 | u32 reg; | |
2039 | int ret; | |
2040 | ||
2041 | if (hw->chip_id != CHIP_ID_YUKON) | |
2042 | return 0; | |
2043 | ||
2044 | reg = skge_read32(hw, B2_FAR); | |
2045 | skge_write8(hw, B2_FAR + 3, 0xff); | |
2046 | ret = (skge_read8(hw, B2_FAR + 3) != 0); | |
2047 | skge_write32(hw, B2_FAR, reg); | |
2048 | return ret; | |
2049 | } | |
2050 | ||
baef58b1 SH |
2051 | static void yukon_mac_init(struct skge_hw *hw, int port) |
2052 | { | |
2053 | struct skge_port *skge = netdev_priv(hw->dev[port]); | |
2054 | int i; | |
2055 | u32 reg; | |
2056 | const u8 *addr = hw->dev[port]->dev_addr; | |
2057 | ||
2058 | /* WA code for COMA mode -- set PHY reset */ | |
2059 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
46a60f2d SH |
2060 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) { |
2061 | reg = skge_read32(hw, B2_GP_IO); | |
2062 | reg |= GP_DIR_9 | GP_IO_9; | |
2063 | skge_write32(hw, B2_GP_IO, reg); | |
2064 | } | |
baef58b1 SH |
2065 | |
2066 | /* hard reset */ | |
6b0c1480 SH |
2067 | skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); |
2068 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); | |
baef58b1 SH |
2069 | |
2070 | /* WA code for COMA mode -- clear PHY reset */ | |
2071 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
46a60f2d SH |
2072 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) { |
2073 | reg = skge_read32(hw, B2_GP_IO); | |
2074 | reg |= GP_DIR_9; | |
2075 | reg &= ~GP_IO_9; | |
2076 | skge_write32(hw, B2_GP_IO, reg); | |
2077 | } | |
baef58b1 SH |
2078 | |
2079 | /* Set hardware config mode */ | |
2080 | reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP | | |
2081 | GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE; | |
5e1705dd | 2082 | reg |= hw->copper ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB; |
baef58b1 SH |
2083 | |
2084 | /* Clear GMC reset */ | |
6b0c1480 SH |
2085 | skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET); |
2086 | skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR); | |
2087 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR); | |
564f9abb | 2088 | |
baef58b1 SH |
2089 | if (skge->autoneg == AUTONEG_DISABLE) { |
2090 | reg = GM_GPCR_AU_ALL_DIS; | |
6b0c1480 SH |
2091 | gma_write16(hw, port, GM_GP_CTRL, |
2092 | gma_read16(hw, port, GM_GP_CTRL) | reg); | |
baef58b1 SH |
2093 | |
2094 | switch (skge->speed) { | |
2095 | case SPEED_1000: | |
564f9abb | 2096 | reg &= ~GM_GPCR_SPEED_100; |
baef58b1 | 2097 | reg |= GM_GPCR_SPEED_1000; |
564f9abb | 2098 | break; |
baef58b1 | 2099 | case SPEED_100: |
564f9abb | 2100 | reg &= ~GM_GPCR_SPEED_1000; |
baef58b1 | 2101 | reg |= GM_GPCR_SPEED_100; |
564f9abb SH |
2102 | break; |
2103 | case SPEED_10: | |
2104 | reg &= ~(GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100); | |
2105 | break; | |
baef58b1 SH |
2106 | } |
2107 | ||
2108 | if (skge->duplex == DUPLEX_FULL) | |
2109 | reg |= GM_GPCR_DUP_FULL; | |
2110 | } else | |
2111 | reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL; | |
564f9abb | 2112 | |
baef58b1 SH |
2113 | switch (skge->flow_control) { |
2114 | case FLOW_MODE_NONE: | |
6b0c1480 | 2115 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); |
baef58b1 SH |
2116 | reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; |
2117 | break; | |
2118 | case FLOW_MODE_LOC_SEND: | |
2119 | /* disable Rx flow-control */ | |
2120 | reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; | |
5d5c8e03 SH |
2121 | break; |
2122 | case FLOW_MODE_SYMMETRIC: | |
2123 | case FLOW_MODE_SYM_OR_REM: | |
2124 | /* enable Tx & Rx flow-control */ | |
2125 | break; | |
baef58b1 SH |
2126 | } |
2127 | ||
6b0c1480 | 2128 | gma_write16(hw, port, GM_GP_CTRL, reg); |
46a60f2d | 2129 | skge_read16(hw, SK_REG(port, GMAC_IRQ_SRC)); |
baef58b1 | 2130 | |
baef58b1 | 2131 | yukon_init(hw, port); |
baef58b1 SH |
2132 | |
2133 | /* MIB clear */ | |
6b0c1480 SH |
2134 | reg = gma_read16(hw, port, GM_PHY_ADDR); |
2135 | gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR); | |
baef58b1 SH |
2136 | |
2137 | for (i = 0; i < GM_MIB_CNT_SIZE; i++) | |
6b0c1480 SH |
2138 | gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i); |
2139 | gma_write16(hw, port, GM_PHY_ADDR, reg); | |
baef58b1 SH |
2140 | |
2141 | /* transmit control */ | |
6b0c1480 | 2142 | gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF)); |
baef58b1 SH |
2143 | |
2144 | /* receive control reg: unicast + multicast + no FCS */ | |
6b0c1480 | 2145 | gma_write16(hw, port, GM_RX_CTRL, |
baef58b1 SH |
2146 | GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA); |
2147 | ||
2148 | /* transmit flow control */ | |
6b0c1480 | 2149 | gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff); |
baef58b1 SH |
2150 | |
2151 | /* transmit parameter */ | |
6b0c1480 | 2152 | gma_write16(hw, port, GM_TX_PARAM, |
baef58b1 SH |
2153 | TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) | |
2154 | TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) | | |
2155 | TX_IPG_JAM_DATA(TX_IPG_JAM_DEF)); | |
2156 | ||
44c7fcce SH |
2157 | /* configure the Serial Mode Register */ |
2158 | reg = DATA_BLIND_VAL(DATA_BLIND_DEF) | |
2159 | | GM_SMOD_VLAN_ENA | |
2160 | | IPG_DATA_VAL(IPG_DATA_DEF); | |
2161 | ||
2162 | if (hw->dev[port]->mtu > ETH_DATA_LEN) | |
baef58b1 SH |
2163 | reg |= GM_SMOD_JUMBO_ENA; |
2164 | ||
6b0c1480 | 2165 | gma_write16(hw, port, GM_SERIAL_MODE, reg); |
baef58b1 SH |
2166 | |
2167 | /* physical address: used for pause frames */ | |
6b0c1480 | 2168 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr); |
baef58b1 | 2169 | /* virtual address for data */ |
6b0c1480 | 2170 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr); |
baef58b1 SH |
2171 | |
2172 | /* enable interrupt mask for counter overflows */ | |
6b0c1480 SH |
2173 | gma_write16(hw, port, GM_TX_IRQ_MSK, 0); |
2174 | gma_write16(hw, port, GM_RX_IRQ_MSK, 0); | |
2175 | gma_write16(hw, port, GM_TR_IRQ_MSK, 0); | |
baef58b1 SH |
2176 | |
2177 | /* Initialize Mac Fifo */ | |
2178 | ||
2179 | /* Configure Rx MAC FIFO */ | |
6b0c1480 | 2180 | skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK); |
baef58b1 | 2181 | reg = GMF_OPER_ON | GMF_RX_F_FL_ON; |
c8868611 SH |
2182 | |
2183 | /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */ | |
2184 | if (is_yukon_lite_a0(hw)) | |
baef58b1 | 2185 | reg &= ~GMF_RX_F_FL_ON; |
c8868611 | 2186 | |
6b0c1480 SH |
2187 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR); |
2188 | skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg); | |
c5923081 SH |
2189 | /* |
2190 | * because Pause Packet Truncation in GMAC is not working | |
2191 | * we have to increase the Flush Threshold to 64 bytes | |
2192 | * in order to flush pause packets in Rx FIFO on Yukon-1 | |
2193 | */ | |
2194 | skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1); | |
baef58b1 SH |
2195 | |
2196 | /* Configure Tx MAC FIFO */ | |
6b0c1480 SH |
2197 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR); |
2198 | skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON); | |
baef58b1 SH |
2199 | } |
2200 | ||
355ec572 SH |
2201 | /* Go into power down mode */ |
2202 | static void yukon_suspend(struct skge_hw *hw, int port) | |
2203 | { | |
2204 | u16 ctrl; | |
2205 | ||
2206 | ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
2207 | ctrl |= PHY_M_PC_POL_R_DIS; | |
2208 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); | |
2209 | ||
2210 | ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); | |
2211 | ctrl |= PHY_CT_RESET; | |
2212 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
2213 | ||
2214 | /* switch IEEE compatible power down mode on */ | |
2215 | ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); | |
2216 | ctrl |= PHY_CT_PDOWN; | |
2217 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
2218 | } | |
2219 | ||
baef58b1 SH |
2220 | static void yukon_stop(struct skge_port *skge) |
2221 | { | |
2222 | struct skge_hw *hw = skge->hw; | |
2223 | int port = skge->port; | |
2224 | ||
46a60f2d SH |
2225 | skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); |
2226 | yukon_reset(hw, port); | |
baef58b1 | 2227 | |
6b0c1480 SH |
2228 | gma_write16(hw, port, GM_GP_CTRL, |
2229 | gma_read16(hw, port, GM_GP_CTRL) | |
0eedf4ac | 2230 | & ~(GM_GPCR_TX_ENA|GM_GPCR_RX_ENA)); |
6b0c1480 | 2231 | gma_read16(hw, port, GM_GP_CTRL); |
baef58b1 | 2232 | |
355ec572 | 2233 | yukon_suspend(hw, port); |
46a60f2d | 2234 | |
baef58b1 | 2235 | /* set GPHY Control reset */ |
46a60f2d SH |
2236 | skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); |
2237 | skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); | |
baef58b1 SH |
2238 | } |
2239 | ||
2240 | static void yukon_get_stats(struct skge_port *skge, u64 *data) | |
2241 | { | |
2242 | struct skge_hw *hw = skge->hw; | |
2243 | int port = skge->port; | |
2244 | int i; | |
2245 | ||
6b0c1480 SH |
2246 | data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32 |
2247 | | gma_read32(hw, port, GM_TXO_OK_LO); | |
2248 | data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32 | |
2249 | | gma_read32(hw, port, GM_RXO_OK_LO); | |
baef58b1 SH |
2250 | |
2251 | for (i = 2; i < ARRAY_SIZE(skge_stats); i++) | |
6b0c1480 | 2252 | data[i] = gma_read32(hw, port, |
baef58b1 SH |
2253 | skge_stats[i].gma_offset); |
2254 | } | |
2255 | ||
2256 | static void yukon_mac_intr(struct skge_hw *hw, int port) | |
2257 | { | |
7e676d91 SH |
2258 | struct net_device *dev = hw->dev[port]; |
2259 | struct skge_port *skge = netdev_priv(dev); | |
6b0c1480 | 2260 | u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC)); |
baef58b1 | 2261 | |
d707204c JP |
2262 | netif_printk(skge, intr, KERN_DEBUG, skge->netdev, |
2263 | "mac interrupt status 0x%x\n", status); | |
7e676d91 | 2264 | |
baef58b1 | 2265 | if (status & GM_IS_RX_FF_OR) { |
da00772f | 2266 | ++dev->stats.rx_fifo_errors; |
d8a09943 | 2267 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO); |
baef58b1 | 2268 | } |
d8a09943 | 2269 | |
baef58b1 | 2270 | if (status & GM_IS_TX_FF_UR) { |
da00772f | 2271 | ++dev->stats.tx_fifo_errors; |
d8a09943 | 2272 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU); |
baef58b1 SH |
2273 | } |
2274 | ||
2275 | } | |
2276 | ||
2277 | static u16 yukon_speed(const struct skge_hw *hw, u16 aux) | |
2278 | { | |
95566065 | 2279 | switch (aux & PHY_M_PS_SPEED_MSK) { |
baef58b1 SH |
2280 | case PHY_M_PS_SPEED_1000: |
2281 | return SPEED_1000; | |
2282 | case PHY_M_PS_SPEED_100: | |
2283 | return SPEED_100; | |
2284 | default: | |
2285 | return SPEED_10; | |
2286 | } | |
2287 | } | |
2288 | ||
2289 | static void yukon_link_up(struct skge_port *skge) | |
2290 | { | |
2291 | struct skge_hw *hw = skge->hw; | |
2292 | int port = skge->port; | |
2293 | u16 reg; | |
2294 | ||
baef58b1 | 2295 | /* Enable Transmit FIFO Underrun */ |
46a60f2d | 2296 | skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK); |
baef58b1 | 2297 | |
6b0c1480 | 2298 | reg = gma_read16(hw, port, GM_GP_CTRL); |
baef58b1 SH |
2299 | if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE) |
2300 | reg |= GM_GPCR_DUP_FULL; | |
2301 | ||
2302 | /* enable Rx/Tx */ | |
2303 | reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; | |
6b0c1480 | 2304 | gma_write16(hw, port, GM_GP_CTRL, reg); |
baef58b1 | 2305 | |
4cde06ed | 2306 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK); |
baef58b1 SH |
2307 | skge_link_up(skge); |
2308 | } | |
2309 | ||
2310 | static void yukon_link_down(struct skge_port *skge) | |
2311 | { | |
2312 | struct skge_hw *hw = skge->hw; | |
2313 | int port = skge->port; | |
d8a09943 | 2314 | u16 ctrl; |
baef58b1 | 2315 | |
d8a09943 SH |
2316 | ctrl = gma_read16(hw, port, GM_GP_CTRL); |
2317 | ctrl &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA); | |
2318 | gma_write16(hw, port, GM_GP_CTRL, ctrl); | |
baef58b1 | 2319 | |
5d5c8e03 SH |
2320 | if (skge->flow_status == FLOW_STAT_REM_SEND) { |
2321 | ctrl = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV); | |
2322 | ctrl |= PHY_M_AN_ASP; | |
baef58b1 | 2323 | /* restore Asymmetric Pause bit */ |
5d5c8e03 | 2324 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, ctrl); |
baef58b1 SH |
2325 | } |
2326 | ||
baef58b1 SH |
2327 | skge_link_down(skge); |
2328 | ||
2329 | yukon_init(hw, port); | |
2330 | } | |
2331 | ||
2332 | static void yukon_phy_intr(struct skge_port *skge) | |
2333 | { | |
2334 | struct skge_hw *hw = skge->hw; | |
2335 | int port = skge->port; | |
2336 | const char *reason = NULL; | |
2337 | u16 istatus, phystat; | |
2338 | ||
6b0c1480 SH |
2339 | istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT); |
2340 | phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT); | |
7e676d91 | 2341 | |
d707204c JP |
2342 | netif_printk(skge, intr, KERN_DEBUG, skge->netdev, |
2343 | "phy interrupt status 0x%x 0x%x\n", istatus, phystat); | |
baef58b1 SH |
2344 | |
2345 | if (istatus & PHY_M_IS_AN_COMPL) { | |
6b0c1480 | 2346 | if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP) |
baef58b1 SH |
2347 | & PHY_M_AN_RF) { |
2348 | reason = "remote fault"; | |
2349 | goto failed; | |
2350 | } | |
2351 | ||
c506a509 | 2352 | if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) { |
baef58b1 SH |
2353 | reason = "master/slave fault"; |
2354 | goto failed; | |
2355 | } | |
2356 | ||
2357 | if (!(phystat & PHY_M_PS_SPDUP_RES)) { | |
2358 | reason = "speed/duplex"; | |
2359 | goto failed; | |
2360 | } | |
2361 | ||
2362 | skge->duplex = (phystat & PHY_M_PS_FULL_DUP) | |
2363 | ? DUPLEX_FULL : DUPLEX_HALF; | |
2364 | skge->speed = yukon_speed(hw, phystat); | |
2365 | ||
baef58b1 SH |
2366 | /* We are using IEEE 802.3z/D5.0 Table 37-4 */ |
2367 | switch (phystat & PHY_M_PS_PAUSE_MSK) { | |
2368 | case PHY_M_PS_PAUSE_MSK: | |
5d5c8e03 | 2369 | skge->flow_status = FLOW_STAT_SYMMETRIC; |
baef58b1 SH |
2370 | break; |
2371 | case PHY_M_PS_RX_P_EN: | |
5d5c8e03 | 2372 | skge->flow_status = FLOW_STAT_REM_SEND; |
baef58b1 SH |
2373 | break; |
2374 | case PHY_M_PS_TX_P_EN: | |
5d5c8e03 | 2375 | skge->flow_status = FLOW_STAT_LOC_SEND; |
baef58b1 SH |
2376 | break; |
2377 | default: | |
5d5c8e03 | 2378 | skge->flow_status = FLOW_STAT_NONE; |
baef58b1 SH |
2379 | } |
2380 | ||
5d5c8e03 | 2381 | if (skge->flow_status == FLOW_STAT_NONE || |
baef58b1 | 2382 | (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF)) |
6b0c1480 | 2383 | skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); |
baef58b1 | 2384 | else |
6b0c1480 | 2385 | skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); |
baef58b1 SH |
2386 | yukon_link_up(skge); |
2387 | return; | |
2388 | } | |
2389 | ||
2390 | if (istatus & PHY_M_IS_LSP_CHANGE) | |
2391 | skge->speed = yukon_speed(hw, phystat); | |
2392 | ||
2393 | if (istatus & PHY_M_IS_DUP_CHANGE) | |
2394 | skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; | |
2395 | if (istatus & PHY_M_IS_LST_CHANGE) { | |
2396 | if (phystat & PHY_M_PS_LINK_UP) | |
2397 | yukon_link_up(skge); | |
2398 | else | |
2399 | yukon_link_down(skge); | |
2400 | } | |
2401 | return; | |
2402 | failed: | |
f15063cd | 2403 | pr_err("%s: autonegotiation failed (%s)\n", skge->netdev->name, reason); |
baef58b1 SH |
2404 | |
2405 | /* XXX restart autonegotiation? */ | |
2406 | } | |
2407 | ||
ee294dcd SH |
2408 | static void skge_phy_reset(struct skge_port *skge) |
2409 | { | |
2410 | struct skge_hw *hw = skge->hw; | |
2411 | int port = skge->port; | |
aae343d4 | 2412 | struct net_device *dev = hw->dev[port]; |
ee294dcd SH |
2413 | |
2414 | netif_stop_queue(skge->netdev); | |
2415 | netif_carrier_off(skge->netdev); | |
2416 | ||
9cbe330f | 2417 | spin_lock_bh(&hw->phy_lock); |
57d6fa37 | 2418 | if (is_genesis(hw)) { |
ee294dcd SH |
2419 | genesis_reset(hw, port); |
2420 | genesis_mac_init(hw, port); | |
2421 | } else { | |
2422 | yukon_reset(hw, port); | |
2423 | yukon_init(hw, port); | |
2424 | } | |
9cbe330f | 2425 | spin_unlock_bh(&hw->phy_lock); |
75814090 | 2426 | |
f80d032b | 2427 | skge_set_multicast(dev); |
ee294dcd SH |
2428 | } |
2429 | ||
2cd8e5d3 SH |
2430 | /* Basic MII support */ |
2431 | static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
2432 | { | |
2433 | struct mii_ioctl_data *data = if_mii(ifr); | |
2434 | struct skge_port *skge = netdev_priv(dev); | |
2435 | struct skge_hw *hw = skge->hw; | |
2436 | int err = -EOPNOTSUPP; | |
2437 | ||
2438 | if (!netif_running(dev)) | |
2439 | return -ENODEV; /* Phy still in reset */ | |
2440 | ||
67777f9b | 2441 | switch (cmd) { |
2cd8e5d3 SH |
2442 | case SIOCGMIIPHY: |
2443 | data->phy_id = hw->phy_addr; | |
2444 | ||
2445 | /* fallthru */ | |
2446 | case SIOCGMIIREG: { | |
2447 | u16 val = 0; | |
9cbe330f | 2448 | spin_lock_bh(&hw->phy_lock); |
57d6fa37 | 2449 | |
2450 | if (is_genesis(hw)) | |
2cd8e5d3 SH |
2451 | err = __xm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val); |
2452 | else | |
2453 | err = __gm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val); | |
9cbe330f | 2454 | spin_unlock_bh(&hw->phy_lock); |
2cd8e5d3 SH |
2455 | data->val_out = val; |
2456 | break; | |
2457 | } | |
2458 | ||
2459 | case SIOCSMIIREG: | |
9cbe330f | 2460 | spin_lock_bh(&hw->phy_lock); |
57d6fa37 | 2461 | if (is_genesis(hw)) |
2cd8e5d3 SH |
2462 | err = xm_phy_write(hw, skge->port, data->reg_num & 0x1f, |
2463 | data->val_in); | |
2464 | else | |
2465 | err = gm_phy_write(hw, skge->port, data->reg_num & 0x1f, | |
2466 | data->val_in); | |
9cbe330f | 2467 | spin_unlock_bh(&hw->phy_lock); |
2cd8e5d3 SH |
2468 | break; |
2469 | } | |
2470 | return err; | |
2471 | } | |
2472 | ||
279e1dab | 2473 | static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len) |
baef58b1 SH |
2474 | { |
2475 | u32 end; | |
2476 | ||
279e1dab LT |
2477 | start /= 8; |
2478 | len /= 8; | |
2479 | end = start + len - 1; | |
baef58b1 SH |
2480 | |
2481 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR); | |
2482 | skge_write32(hw, RB_ADDR(q, RB_START), start); | |
2483 | skge_write32(hw, RB_ADDR(q, RB_WP), start); | |
2484 | skge_write32(hw, RB_ADDR(q, RB_RP), start); | |
279e1dab | 2485 | skge_write32(hw, RB_ADDR(q, RB_END), end); |
baef58b1 SH |
2486 | |
2487 | if (q == Q_R1 || q == Q_R2) { | |
2488 | /* Set thresholds on receive queue's */ | |
279e1dab LT |
2489 | skge_write32(hw, RB_ADDR(q, RB_RX_UTPP), |
2490 | start + (2*len)/3); | |
2491 | skge_write32(hw, RB_ADDR(q, RB_RX_LTPP), | |
2492 | start + (len/3)); | |
2493 | } else { | |
2494 | /* Enable store & forward on Tx queue's because | |
2495 | * Tx FIFO is only 4K on Genesis and 1K on Yukon | |
2496 | */ | |
baef58b1 | 2497 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD); |
279e1dab | 2498 | } |
baef58b1 SH |
2499 | |
2500 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD); | |
2501 | } | |
2502 | ||
2503 | /* Setup Bus Memory Interface */ | |
2504 | static void skge_qset(struct skge_port *skge, u16 q, | |
2505 | const struct skge_element *e) | |
2506 | { | |
2507 | struct skge_hw *hw = skge->hw; | |
2508 | u32 watermark = 0x600; | |
2509 | u64 base = skge->dma + (e->desc - skge->mem); | |
2510 | ||
2511 | /* optimization to reduce window on 32bit/33mhz */ | |
2512 | if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0) | |
2513 | watermark /= 2; | |
2514 | ||
2515 | skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET); | |
2516 | skge_write32(hw, Q_ADDR(q, Q_F), watermark); | |
2517 | skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32)); | |
2518 | skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base); | |
2519 | } | |
2520 | ||
2521 | static int skge_up(struct net_device *dev) | |
2522 | { | |
2523 | struct skge_port *skge = netdev_priv(dev); | |
2524 | struct skge_hw *hw = skge->hw; | |
2525 | int port = skge->port; | |
279e1dab | 2526 | u32 chunk, ram_addr; |
baef58b1 SH |
2527 | size_t rx_size, tx_size; |
2528 | int err; | |
2529 | ||
fae87592 SH |
2530 | if (!is_valid_ether_addr(dev->dev_addr)) |
2531 | return -EINVAL; | |
2532 | ||
d707204c | 2533 | netif_info(skge, ifup, skge->netdev, "enabling interface\n"); |
baef58b1 | 2534 | |
19a33d4e | 2535 | if (dev->mtu > RX_BUF_SIZE) |
901ccefb | 2536 | skge->rx_buf_size = dev->mtu + ETH_HLEN; |
19a33d4e SH |
2537 | else |
2538 | skge->rx_buf_size = RX_BUF_SIZE; | |
2539 | ||
2540 | ||
baef58b1 SH |
2541 | rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc); |
2542 | tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc); | |
2543 | skge->mem_size = tx_size + rx_size; | |
2544 | skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma); | |
2545 | if (!skge->mem) | |
2546 | return -ENOMEM; | |
2547 | ||
c3da1447 SH |
2548 | BUG_ON(skge->dma & 7); |
2549 | ||
2550 | if ((u64)skge->dma >> 32 != ((u64) skge->dma + skge->mem_size) >> 32) { | |
1479d13c | 2551 | dev_err(&hw->pdev->dev, "pci_alloc_consistent region crosses 4G boundary\n"); |
c3da1447 SH |
2552 | err = -EINVAL; |
2553 | goto free_pci_mem; | |
2554 | } | |
2555 | ||
baef58b1 SH |
2556 | memset(skge->mem, 0, skge->mem_size); |
2557 | ||
203babb6 SH |
2558 | err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma); |
2559 | if (err) | |
baef58b1 SH |
2560 | goto free_pci_mem; |
2561 | ||
c54f9765 | 2562 | err = skge_rx_fill(dev); |
19a33d4e | 2563 | if (err) |
baef58b1 SH |
2564 | goto free_rx_ring; |
2565 | ||
203babb6 SH |
2566 | err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size, |
2567 | skge->dma + rx_size); | |
2568 | if (err) | |
baef58b1 SH |
2569 | goto free_rx_ring; |
2570 | ||
8f3f8193 | 2571 | /* Initialize MAC */ |
9cbe330f | 2572 | spin_lock_bh(&hw->phy_lock); |
57d6fa37 | 2573 | if (is_genesis(hw)) |
baef58b1 SH |
2574 | genesis_mac_init(hw, port); |
2575 | else | |
2576 | yukon_mac_init(hw, port); | |
9cbe330f | 2577 | spin_unlock_bh(&hw->phy_lock); |
baef58b1 | 2578 | |
29816d9a SH |
2579 | /* Configure RAMbuffers - equally between ports and tx/rx */ |
2580 | chunk = (hw->ram_size - hw->ram_offset) / (hw->ports * 2); | |
279e1dab | 2581 | ram_addr = hw->ram_offset + 2 * chunk * port; |
baef58b1 | 2582 | |
279e1dab | 2583 | skge_ramset(hw, rxqaddr[port], ram_addr, chunk); |
7fb7ac24 | 2584 | skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean); |
279e1dab | 2585 | |
baef58b1 | 2586 | BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean); |
279e1dab | 2587 | skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk); |
baef58b1 SH |
2588 | skge_qset(skge, txqaddr[port], skge->tx_ring.to_use); |
2589 | ||
2590 | /* Start receiver BMU */ | |
2591 | wmb(); | |
2592 | skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F); | |
6abebb53 | 2593 | skge_led(skge, LED_MODE_ON); |
baef58b1 | 2594 | |
4ebabfcb SH |
2595 | spin_lock_irq(&hw->hw_lock); |
2596 | hw->intr_mask |= portmask[port]; | |
2597 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
2598 | spin_unlock_irq(&hw->hw_lock); | |
2599 | ||
bea3348e | 2600 | napi_enable(&skge->napi); |
baef58b1 SH |
2601 | return 0; |
2602 | ||
2603 | free_rx_ring: | |
2604 | skge_rx_clean(skge); | |
2605 | kfree(skge->rx_ring.start); | |
2606 | free_pci_mem: | |
2607 | pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma); | |
7731a4ea | 2608 | skge->mem = NULL; |
baef58b1 SH |
2609 | |
2610 | return err; | |
2611 | } | |
2612 | ||
60b24b51 SH |
2613 | /* stop receiver */ |
2614 | static void skge_rx_stop(struct skge_hw *hw, int port) | |
2615 | { | |
2616 | skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP); | |
2617 | skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL), | |
2618 | RB_RST_SET|RB_DIS_OP_MD); | |
2619 | skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET); | |
2620 | } | |
2621 | ||
baef58b1 SH |
2622 | static int skge_down(struct net_device *dev) |
2623 | { | |
2624 | struct skge_port *skge = netdev_priv(dev); | |
2625 | struct skge_hw *hw = skge->hw; | |
2626 | int port = skge->port; | |
2627 | ||
7731a4ea SH |
2628 | if (skge->mem == NULL) |
2629 | return 0; | |
2630 | ||
d707204c | 2631 | netif_info(skge, ifdown, skge->netdev, "disabling interface\n"); |
baef58b1 | 2632 | |
d119b392 | 2633 | netif_tx_disable(dev); |
692412b3 | 2634 | |
57d6fa37 | 2635 | if (is_genesis(hw) && hw->phy_type == SK_PHY_XMAC) |
9cbe330f | 2636 | del_timer_sync(&skge->link_timer); |
baef58b1 | 2637 | |
bea3348e | 2638 | napi_disable(&skge->napi); |
692412b3 | 2639 | netif_carrier_off(dev); |
4ebabfcb SH |
2640 | |
2641 | spin_lock_irq(&hw->hw_lock); | |
2642 | hw->intr_mask &= ~portmask[port]; | |
2643 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
2644 | spin_unlock_irq(&hw->hw_lock); | |
2645 | ||
46a60f2d | 2646 | skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF); |
57d6fa37 | 2647 | if (is_genesis(hw)) |
46a60f2d SH |
2648 | genesis_stop(skge); |
2649 | else | |
2650 | yukon_stop(skge); | |
2651 | ||
baef58b1 SH |
2652 | /* Stop transmitter */ |
2653 | skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP); | |
2654 | skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), | |
2655 | RB_RST_SET|RB_DIS_OP_MD); | |
2656 | ||
baef58b1 SH |
2657 | |
2658 | /* Disable Force Sync bit and Enable Alloc bit */ | |
6b0c1480 | 2659 | skge_write8(hw, SK_REG(port, TXA_CTRL), |
baef58b1 SH |
2660 | TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC); |
2661 | ||
2662 | /* Stop Interval Timer and Limit Counter of Tx Arbiter */ | |
6b0c1480 SH |
2663 | skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L); |
2664 | skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L); | |
baef58b1 SH |
2665 | |
2666 | /* Reset PCI FIFO */ | |
2667 | skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET); | |
2668 | skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET); | |
2669 | ||
2670 | /* Reset the RAM Buffer async Tx queue */ | |
2671 | skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET); | |
60b24b51 SH |
2672 | |
2673 | skge_rx_stop(hw, port); | |
baef58b1 | 2674 | |
57d6fa37 | 2675 | if (is_genesis(hw)) { |
6b0c1480 SH |
2676 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET); |
2677 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET); | |
baef58b1 | 2678 | } else { |
6b0c1480 SH |
2679 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); |
2680 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET); | |
baef58b1 SH |
2681 | } |
2682 | ||
6abebb53 | 2683 | skge_led(skge, LED_MODE_OFF); |
baef58b1 | 2684 | |
e3a1b99f | 2685 | netif_tx_lock_bh(dev); |
513f533e | 2686 | skge_tx_clean(dev); |
e3a1b99f SH |
2687 | netif_tx_unlock_bh(dev); |
2688 | ||
baef58b1 SH |
2689 | skge_rx_clean(skge); |
2690 | ||
2691 | kfree(skge->rx_ring.start); | |
2692 | kfree(skge->tx_ring.start); | |
2693 | pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma); | |
7731a4ea | 2694 | skge->mem = NULL; |
baef58b1 SH |
2695 | return 0; |
2696 | } | |
2697 | ||
29b4e886 SH |
2698 | static inline int skge_avail(const struct skge_ring *ring) |
2699 | { | |
992c9623 | 2700 | smp_mb(); |
29b4e886 SH |
2701 | return ((ring->to_clean > ring->to_use) ? 0 : ring->count) |
2702 | + (ring->to_clean - ring->to_use) - 1; | |
2703 | } | |
2704 | ||
61357325 SH |
2705 | static netdev_tx_t skge_xmit_frame(struct sk_buff *skb, |
2706 | struct net_device *dev) | |
baef58b1 SH |
2707 | { |
2708 | struct skge_port *skge = netdev_priv(dev); | |
2709 | struct skge_hw *hw = skge->hw; | |
baef58b1 SH |
2710 | struct skge_element *e; |
2711 | struct skge_tx_desc *td; | |
2712 | int i; | |
2713 | u32 control, len; | |
2714 | u64 map; | |
baef58b1 | 2715 | |
5b057c6b | 2716 | if (skb_padto(skb, ETH_ZLEN)) |
baef58b1 SH |
2717 | return NETDEV_TX_OK; |
2718 | ||
513f533e | 2719 | if (unlikely(skge_avail(&skge->tx_ring) < skb_shinfo(skb)->nr_frags + 1)) |
baef58b1 | 2720 | return NETDEV_TX_BUSY; |
baef58b1 | 2721 | |
7c442fa1 | 2722 | e = skge->tx_ring.to_use; |
baef58b1 | 2723 | td = e->desc; |
7c442fa1 | 2724 | BUG_ON(td->control & BMU_OWN); |
baef58b1 SH |
2725 | e->skb = skb; |
2726 | len = skb_headlen(skb); | |
2727 | map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
10fc51b9 FT |
2728 | dma_unmap_addr_set(e, mapaddr, map); |
2729 | dma_unmap_len_set(e, maplen, len); | |
baef58b1 SH |
2730 | |
2731 | td->dma_lo = map; | |
2732 | td->dma_hi = map >> 32; | |
2733 | ||
84fa7933 | 2734 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
0d0b1672 | 2735 | const int offset = skb_checksum_start_offset(skb); |
baef58b1 SH |
2736 | |
2737 | /* This seems backwards, but it is what the sk98lin | |
2738 | * does. Looks like hardware is wrong? | |
2739 | */ | |
8e95a202 | 2740 | if (ipip_hdr(skb)->protocol == IPPROTO_UDP && |
67777f9b | 2741 | hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON) |
baef58b1 SH |
2742 | control = BMU_TCP_CHECK; |
2743 | else | |
2744 | control = BMU_UDP_CHECK; | |
2745 | ||
2746 | td->csum_offs = 0; | |
2747 | td->csum_start = offset; | |
ff1dcadb | 2748 | td->csum_write = offset + skb->csum_offset; |
baef58b1 SH |
2749 | } else |
2750 | control = BMU_CHECK; | |
2751 | ||
2752 | if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */ | |
67777f9b | 2753 | control |= BMU_EOF | BMU_IRQ_EOF; |
baef58b1 SH |
2754 | else { |
2755 | struct skge_tx_desc *tf = td; | |
2756 | ||
2757 | control |= BMU_STFWD; | |
2758 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
2759 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
2760 | ||
2761 | map = pci_map_page(hw->pdev, frag->page, frag->page_offset, | |
2762 | frag->size, PCI_DMA_TODEVICE); | |
2763 | ||
2764 | e = e->next; | |
7c442fa1 | 2765 | e->skb = skb; |
baef58b1 | 2766 | tf = e->desc; |
7c442fa1 SH |
2767 | BUG_ON(tf->control & BMU_OWN); |
2768 | ||
baef58b1 SH |
2769 | tf->dma_lo = map; |
2770 | tf->dma_hi = (u64) map >> 32; | |
10fc51b9 FT |
2771 | dma_unmap_addr_set(e, mapaddr, map); |
2772 | dma_unmap_len_set(e, maplen, frag->size); | |
baef58b1 SH |
2773 | |
2774 | tf->control = BMU_OWN | BMU_SW | control | frag->size; | |
2775 | } | |
2776 | tf->control |= BMU_EOF | BMU_IRQ_EOF; | |
2777 | } | |
2778 | /* Make sure all the descriptors written */ | |
2779 | wmb(); | |
2780 | td->control = BMU_OWN | BMU_SW | BMU_STF | control | len; | |
2781 | wmb(); | |
2782 | ||
2783 | skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START); | |
2784 | ||
d707204c JP |
2785 | netif_printk(skge, tx_queued, KERN_DEBUG, skge->netdev, |
2786 | "tx queued, slot %td, len %d\n", | |
2787 | e - skge->tx_ring.start, skb->len); | |
baef58b1 | 2788 | |
7c442fa1 | 2789 | skge->tx_ring.to_use = e->next; |
992c9623 SH |
2790 | smp_wmb(); |
2791 | ||
9db96479 | 2792 | if (skge_avail(&skge->tx_ring) <= TX_LOW_WATER) { |
f15063cd | 2793 | netdev_dbg(dev, "transmit queue full\n"); |
baef58b1 SH |
2794 | netif_stop_queue(dev); |
2795 | } | |
2796 | ||
baef58b1 SH |
2797 | return NETDEV_TX_OK; |
2798 | } | |
2799 | ||
7c442fa1 SH |
2800 | |
2801 | /* Free resources associated with this reing element */ | |
2802 | static void skge_tx_free(struct skge_port *skge, struct skge_element *e, | |
2803 | u32 control) | |
866b4f3e SH |
2804 | { |
2805 | struct pci_dev *pdev = skge->hw->pdev; | |
866b4f3e | 2806 | |
7c442fa1 SH |
2807 | /* skb header vs. fragment */ |
2808 | if (control & BMU_STF) | |
10fc51b9 FT |
2809 | pci_unmap_single(pdev, dma_unmap_addr(e, mapaddr), |
2810 | dma_unmap_len(e, maplen), | |
7c442fa1 SH |
2811 | PCI_DMA_TODEVICE); |
2812 | else | |
10fc51b9 FT |
2813 | pci_unmap_page(pdev, dma_unmap_addr(e, mapaddr), |
2814 | dma_unmap_len(e, maplen), | |
7c442fa1 | 2815 | PCI_DMA_TODEVICE); |
866b4f3e | 2816 | |
7c442fa1 | 2817 | if (control & BMU_EOF) { |
d707204c JP |
2818 | netif_printk(skge, tx_done, KERN_DEBUG, skge->netdev, |
2819 | "tx done slot %td\n", e - skge->tx_ring.start); | |
866b4f3e | 2820 | |
513f533e | 2821 | dev_kfree_skb(e->skb); |
baef58b1 SH |
2822 | } |
2823 | } | |
2824 | ||
7c442fa1 | 2825 | /* Free all buffers in transmit ring */ |
513f533e | 2826 | static void skge_tx_clean(struct net_device *dev) |
baef58b1 | 2827 | { |
513f533e | 2828 | struct skge_port *skge = netdev_priv(dev); |
7c442fa1 | 2829 | struct skge_element *e; |
baef58b1 | 2830 | |
7c442fa1 SH |
2831 | for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) { |
2832 | struct skge_tx_desc *td = e->desc; | |
2833 | skge_tx_free(skge, e, td->control); | |
2834 | td->control = 0; | |
2835 | } | |
2836 | ||
2837 | skge->tx_ring.to_clean = e; | |
baef58b1 SH |
2838 | } |
2839 | ||
2840 | static void skge_tx_timeout(struct net_device *dev) | |
2841 | { | |
2842 | struct skge_port *skge = netdev_priv(dev); | |
2843 | ||
d707204c | 2844 | netif_printk(skge, timer, KERN_DEBUG, skge->netdev, "tx timeout\n"); |
baef58b1 SH |
2845 | |
2846 | skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP); | |
513f533e | 2847 | skge_tx_clean(dev); |
d119b392 | 2848 | netif_wake_queue(dev); |
baef58b1 SH |
2849 | } |
2850 | ||
2851 | static int skge_change_mtu(struct net_device *dev, int new_mtu) | |
2852 | { | |
7731a4ea | 2853 | int err; |
baef58b1 | 2854 | |
95566065 | 2855 | if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) |
baef58b1 SH |
2856 | return -EINVAL; |
2857 | ||
7731a4ea SH |
2858 | if (!netif_running(dev)) { |
2859 | dev->mtu = new_mtu; | |
2860 | return 0; | |
2861 | } | |
2862 | ||
1a8098be | 2863 | skge_down(dev); |
baef58b1 | 2864 | |
19a33d4e | 2865 | dev->mtu = new_mtu; |
7731a4ea | 2866 | |
1a8098be | 2867 | err = skge_up(dev); |
7731a4ea SH |
2868 | if (err) |
2869 | dev_close(dev); | |
baef58b1 SH |
2870 | |
2871 | return err; | |
2872 | } | |
2873 | ||
c4cd29d2 SH |
2874 | static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 }; |
2875 | ||
2876 | static void genesis_add_filter(u8 filter[8], const u8 *addr) | |
2877 | { | |
2878 | u32 crc, bit; | |
2879 | ||
2880 | crc = ether_crc_le(ETH_ALEN, addr); | |
2881 | bit = ~crc & 0x3f; | |
2882 | filter[bit/8] |= 1 << (bit%8); | |
2883 | } | |
2884 | ||
baef58b1 SH |
2885 | static void genesis_set_multicast(struct net_device *dev) |
2886 | { | |
2887 | struct skge_port *skge = netdev_priv(dev); | |
2888 | struct skge_hw *hw = skge->hw; | |
2889 | int port = skge->port; | |
22bedad3 | 2890 | struct netdev_hw_addr *ha; |
baef58b1 SH |
2891 | u32 mode; |
2892 | u8 filter[8]; | |
2893 | ||
6b0c1480 | 2894 | mode = xm_read32(hw, port, XM_MODE); |
baef58b1 SH |
2895 | mode |= XM_MD_ENA_HASH; |
2896 | if (dev->flags & IFF_PROMISC) | |
2897 | mode |= XM_MD_ENA_PROM; | |
2898 | else | |
2899 | mode &= ~XM_MD_ENA_PROM; | |
2900 | ||
2901 | if (dev->flags & IFF_ALLMULTI) | |
2902 | memset(filter, 0xff, sizeof(filter)); | |
2903 | else { | |
2904 | memset(filter, 0, sizeof(filter)); | |
c4cd29d2 | 2905 | |
8e95a202 JP |
2906 | if (skge->flow_status == FLOW_STAT_REM_SEND || |
2907 | skge->flow_status == FLOW_STAT_SYMMETRIC) | |
c4cd29d2 SH |
2908 | genesis_add_filter(filter, pause_mc_addr); |
2909 | ||
22bedad3 JP |
2910 | netdev_for_each_mc_addr(ha, dev) |
2911 | genesis_add_filter(filter, ha->addr); | |
baef58b1 SH |
2912 | } |
2913 | ||
6b0c1480 | 2914 | xm_write32(hw, port, XM_MODE, mode); |
45bada65 | 2915 | xm_outhash(hw, port, XM_HSM, filter); |
baef58b1 SH |
2916 | } |
2917 | ||
c4cd29d2 SH |
2918 | static void yukon_add_filter(u8 filter[8], const u8 *addr) |
2919 | { | |
2920 | u32 bit = ether_crc(ETH_ALEN, addr) & 0x3f; | |
2921 | filter[bit/8] |= 1 << (bit%8); | |
2922 | } | |
2923 | ||
baef58b1 SH |
2924 | static void yukon_set_multicast(struct net_device *dev) |
2925 | { | |
2926 | struct skge_port *skge = netdev_priv(dev); | |
2927 | struct skge_hw *hw = skge->hw; | |
2928 | int port = skge->port; | |
22bedad3 | 2929 | struct netdev_hw_addr *ha; |
8e95a202 JP |
2930 | int rx_pause = (skge->flow_status == FLOW_STAT_REM_SEND || |
2931 | skge->flow_status == FLOW_STAT_SYMMETRIC); | |
baef58b1 SH |
2932 | u16 reg; |
2933 | u8 filter[8]; | |
2934 | ||
2935 | memset(filter, 0, sizeof(filter)); | |
2936 | ||
6b0c1480 | 2937 | reg = gma_read16(hw, port, GM_RX_CTRL); |
baef58b1 SH |
2938 | reg |= GM_RXCR_UCF_ENA; |
2939 | ||
8f3f8193 | 2940 | if (dev->flags & IFF_PROMISC) /* promiscuous */ |
baef58b1 SH |
2941 | reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); |
2942 | else if (dev->flags & IFF_ALLMULTI) /* all multicast */ | |
2943 | memset(filter, 0xff, sizeof(filter)); | |
4cd24eaf | 2944 | else if (netdev_mc_empty(dev) && !rx_pause)/* no multicast */ |
baef58b1 SH |
2945 | reg &= ~GM_RXCR_MCF_ENA; |
2946 | else { | |
baef58b1 SH |
2947 | reg |= GM_RXCR_MCF_ENA; |
2948 | ||
c4cd29d2 SH |
2949 | if (rx_pause) |
2950 | yukon_add_filter(filter, pause_mc_addr); | |
2951 | ||
22bedad3 JP |
2952 | netdev_for_each_mc_addr(ha, dev) |
2953 | yukon_add_filter(filter, ha->addr); | |
baef58b1 SH |
2954 | } |
2955 | ||
2956 | ||
6b0c1480 | 2957 | gma_write16(hw, port, GM_MC_ADDR_H1, |
baef58b1 | 2958 | (u16)filter[0] | ((u16)filter[1] << 8)); |
6b0c1480 | 2959 | gma_write16(hw, port, GM_MC_ADDR_H2, |
baef58b1 | 2960 | (u16)filter[2] | ((u16)filter[3] << 8)); |
6b0c1480 | 2961 | gma_write16(hw, port, GM_MC_ADDR_H3, |
baef58b1 | 2962 | (u16)filter[4] | ((u16)filter[5] << 8)); |
6b0c1480 | 2963 | gma_write16(hw, port, GM_MC_ADDR_H4, |
baef58b1 SH |
2964 | (u16)filter[6] | ((u16)filter[7] << 8)); |
2965 | ||
6b0c1480 | 2966 | gma_write16(hw, port, GM_RX_CTRL, reg); |
baef58b1 SH |
2967 | } |
2968 | ||
383181ac SH |
2969 | static inline u16 phy_length(const struct skge_hw *hw, u32 status) |
2970 | { | |
57d6fa37 | 2971 | if (is_genesis(hw)) |
383181ac SH |
2972 | return status >> XMR_FS_LEN_SHIFT; |
2973 | else | |
2974 | return status >> GMR_FS_LEN_SHIFT; | |
2975 | } | |
2976 | ||
baef58b1 SH |
2977 | static inline int bad_phy_status(const struct skge_hw *hw, u32 status) |
2978 | { | |
57d6fa37 | 2979 | if (is_genesis(hw)) |
baef58b1 SH |
2980 | return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0; |
2981 | else | |
2982 | return (status & GMR_FS_ANY_ERR) || | |
2983 | (status & GMR_FS_RX_OK) == 0; | |
2984 | } | |
2985 | ||
f80d032b SH |
2986 | static void skge_set_multicast(struct net_device *dev) |
2987 | { | |
2988 | struct skge_port *skge = netdev_priv(dev); | |
f80d032b | 2989 | |
57d6fa37 | 2990 | if (is_genesis(skge->hw)) |
f80d032b SH |
2991 | genesis_set_multicast(dev); |
2992 | else | |
2993 | yukon_set_multicast(dev); | |
2994 | ||
2995 | } | |
2996 | ||
19a33d4e SH |
2997 | |
2998 | /* Get receive buffer from descriptor. | |
2999 | * Handles copy of small buffers and reallocation failures | |
3000 | */ | |
c54f9765 SH |
3001 | static struct sk_buff *skge_rx_get(struct net_device *dev, |
3002 | struct skge_element *e, | |
3003 | u32 control, u32 status, u16 csum) | |
19a33d4e | 3004 | { |
c54f9765 | 3005 | struct skge_port *skge = netdev_priv(dev); |
383181ac SH |
3006 | struct sk_buff *skb; |
3007 | u16 len = control & BMU_BBC; | |
3008 | ||
d707204c JP |
3009 | netif_printk(skge, rx_status, KERN_DEBUG, skge->netdev, |
3010 | "rx slot %td status 0x%x len %d\n", | |
3011 | e - skge->rx_ring.start, status, len); | |
383181ac SH |
3012 | |
3013 | if (len > skge->rx_buf_size) | |
3014 | goto error; | |
3015 | ||
3016 | if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF)) | |
3017 | goto error; | |
3018 | ||
3019 | if (bad_phy_status(skge->hw, status)) | |
3020 | goto error; | |
3021 | ||
3022 | if (phy_length(skge->hw, status) != len) | |
3023 | goto error; | |
19a33d4e SH |
3024 | |
3025 | if (len < RX_COPY_THRESHOLD) { | |
89d71a66 | 3026 | skb = netdev_alloc_skb_ip_align(dev, len); |
383181ac SH |
3027 | if (!skb) |
3028 | goto resubmit; | |
19a33d4e SH |
3029 | |
3030 | pci_dma_sync_single_for_cpu(skge->hw->pdev, | |
10fc51b9 | 3031 | dma_unmap_addr(e, mapaddr), |
19a33d4e | 3032 | len, PCI_DMA_FROMDEVICE); |
d626f62b | 3033 | skb_copy_from_linear_data(e->skb, skb->data, len); |
19a33d4e | 3034 | pci_dma_sync_single_for_device(skge->hw->pdev, |
10fc51b9 | 3035 | dma_unmap_addr(e, mapaddr), |
19a33d4e | 3036 | len, PCI_DMA_FROMDEVICE); |
19a33d4e | 3037 | skge_rx_reuse(e, skge->rx_buf_size); |
19a33d4e | 3038 | } else { |
383181ac | 3039 | struct sk_buff *nskb; |
89d71a66 ED |
3040 | |
3041 | nskb = netdev_alloc_skb_ip_align(dev, skge->rx_buf_size); | |
383181ac SH |
3042 | if (!nskb) |
3043 | goto resubmit; | |
19a33d4e SH |
3044 | |
3045 | pci_unmap_single(skge->hw->pdev, | |
10fc51b9 FT |
3046 | dma_unmap_addr(e, mapaddr), |
3047 | dma_unmap_len(e, maplen), | |
19a33d4e SH |
3048 | PCI_DMA_FROMDEVICE); |
3049 | skb = e->skb; | |
67777f9b | 3050 | prefetch(skb->data); |
19a33d4e | 3051 | skge_rx_setup(skge, e, nskb, skge->rx_buf_size); |
baef58b1 | 3052 | } |
383181ac SH |
3053 | |
3054 | skb_put(skb, len); | |
e92702b1 MM |
3055 | |
3056 | if (dev->features & NETIF_F_RXCSUM) { | |
383181ac | 3057 | skb->csum = csum; |
84fa7933 | 3058 | skb->ip_summed = CHECKSUM_COMPLETE; |
383181ac SH |
3059 | } |
3060 | ||
c54f9765 | 3061 | skb->protocol = eth_type_trans(skb, dev); |
383181ac SH |
3062 | |
3063 | return skb; | |
3064 | error: | |
3065 | ||
d707204c JP |
3066 | netif_printk(skge, rx_err, KERN_DEBUG, skge->netdev, |
3067 | "rx err, slot %td control 0x%x status 0x%x\n", | |
3068 | e - skge->rx_ring.start, control, status); | |
383181ac | 3069 | |
57d6fa37 | 3070 | if (is_genesis(skge->hw)) { |
383181ac | 3071 | if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR)) |
da00772f | 3072 | dev->stats.rx_length_errors++; |
383181ac | 3073 | if (status & XMR_FS_FRA_ERR) |
da00772f | 3074 | dev->stats.rx_frame_errors++; |
383181ac | 3075 | if (status & XMR_FS_FCS_ERR) |
da00772f | 3076 | dev->stats.rx_crc_errors++; |
383181ac SH |
3077 | } else { |
3078 | if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE)) | |
da00772f | 3079 | dev->stats.rx_length_errors++; |
383181ac | 3080 | if (status & GMR_FS_FRAGMENT) |
da00772f | 3081 | dev->stats.rx_frame_errors++; |
383181ac | 3082 | if (status & GMR_FS_CRC_ERR) |
da00772f | 3083 | dev->stats.rx_crc_errors++; |
383181ac SH |
3084 | } |
3085 | ||
3086 | resubmit: | |
3087 | skge_rx_reuse(e, skge->rx_buf_size); | |
3088 | return NULL; | |
baef58b1 SH |
3089 | } |
3090 | ||
7c442fa1 | 3091 | /* Free all buffers in Tx ring which are no longer owned by device */ |
513f533e | 3092 | static void skge_tx_done(struct net_device *dev) |
00a6cae2 | 3093 | { |
7c442fa1 | 3094 | struct skge_port *skge = netdev_priv(dev); |
00a6cae2 | 3095 | struct skge_ring *ring = &skge->tx_ring; |
7c442fa1 SH |
3096 | struct skge_element *e; |
3097 | ||
513f533e | 3098 | skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F); |
00a6cae2 | 3099 | |
866b4f3e | 3100 | for (e = ring->to_clean; e != ring->to_use; e = e->next) { |
992c9623 | 3101 | u32 control = ((const struct skge_tx_desc *) e->desc)->control; |
00a6cae2 | 3102 | |
992c9623 | 3103 | if (control & BMU_OWN) |
00a6cae2 SH |
3104 | break; |
3105 | ||
992c9623 | 3106 | skge_tx_free(skge, e, control); |
00a6cae2 | 3107 | } |
7c442fa1 | 3108 | skge->tx_ring.to_clean = e; |
866b4f3e | 3109 | |
992c9623 SH |
3110 | /* Can run lockless until we need to synchronize to restart queue. */ |
3111 | smp_mb(); | |
3112 | ||
3113 | if (unlikely(netif_queue_stopped(dev) && | |
3114 | skge_avail(&skge->tx_ring) > TX_LOW_WATER)) { | |
3115 | netif_tx_lock(dev); | |
3116 | if (unlikely(netif_queue_stopped(dev) && | |
3117 | skge_avail(&skge->tx_ring) > TX_LOW_WATER)) { | |
3118 | netif_wake_queue(dev); | |
00a6cae2 | 3119 | |
992c9623 SH |
3120 | } |
3121 | netif_tx_unlock(dev); | |
3122 | } | |
00a6cae2 | 3123 | } |
19a33d4e | 3124 | |
bea3348e | 3125 | static int skge_poll(struct napi_struct *napi, int to_do) |
baef58b1 | 3126 | { |
bea3348e SH |
3127 | struct skge_port *skge = container_of(napi, struct skge_port, napi); |
3128 | struct net_device *dev = skge->netdev; | |
baef58b1 SH |
3129 | struct skge_hw *hw = skge->hw; |
3130 | struct skge_ring *ring = &skge->rx_ring; | |
3131 | struct skge_element *e; | |
00a6cae2 SH |
3132 | int work_done = 0; |
3133 | ||
513f533e SH |
3134 | skge_tx_done(dev); |
3135 | ||
3136 | skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F); | |
3137 | ||
1631aef1 | 3138 | for (e = ring->to_clean; prefetch(e->next), work_done < to_do; e = e->next) { |
baef58b1 | 3139 | struct skge_rx_desc *rd = e->desc; |
19a33d4e | 3140 | struct sk_buff *skb; |
383181ac | 3141 | u32 control; |
baef58b1 SH |
3142 | |
3143 | rmb(); | |
3144 | control = rd->control; | |
3145 | if (control & BMU_OWN) | |
3146 | break; | |
3147 | ||
c54f9765 | 3148 | skb = skge_rx_get(dev, e, control, rd->status, rd->csum2); |
19a33d4e | 3149 | if (likely(skb)) { |
86cac58b | 3150 | napi_gro_receive(napi, skb); |
19a33d4e | 3151 | ++work_done; |
5a011447 | 3152 | } |
baef58b1 SH |
3153 | } |
3154 | ring->to_clean = e; | |
3155 | ||
baef58b1 SH |
3156 | /* restart receiver */ |
3157 | wmb(); | |
a9cdab86 | 3158 | skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_START); |
baef58b1 | 3159 | |
bea3348e | 3160 | if (work_done < to_do) { |
6ef2977d | 3161 | unsigned long flags; |
f0c88f9c | 3162 | |
86cac58b | 3163 | napi_gro_flush(napi); |
6ef2977d | 3164 | spin_lock_irqsave(&hw->hw_lock, flags); |
288379f0 | 3165 | __napi_complete(napi); |
bea3348e SH |
3166 | hw->intr_mask |= napimask[skge->port]; |
3167 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
3168 | skge_read32(hw, B0_IMSK); | |
6ef2977d | 3169 | spin_unlock_irqrestore(&hw->hw_lock, flags); |
bea3348e | 3170 | } |
1631aef1 | 3171 | |
bea3348e | 3172 | return work_done; |
baef58b1 SH |
3173 | } |
3174 | ||
f6620cab SH |
3175 | /* Parity errors seem to happen when Genesis is connected to a switch |
3176 | * with no other ports present. Heartbeat error?? | |
3177 | */ | |
baef58b1 SH |
3178 | static void skge_mac_parity(struct skge_hw *hw, int port) |
3179 | { | |
f6620cab SH |
3180 | struct net_device *dev = hw->dev[port]; |
3181 | ||
da00772f | 3182 | ++dev->stats.tx_heartbeat_errors; |
baef58b1 | 3183 | |
57d6fa37 | 3184 | if (is_genesis(hw)) |
6b0c1480 | 3185 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), |
baef58b1 SH |
3186 | MFF_CLR_PERR); |
3187 | else | |
3188 | /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */ | |
6b0c1480 | 3189 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), |
981d0377 | 3190 | (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0) |
baef58b1 SH |
3191 | ? GMF_CLI_TX_FC : GMF_CLI_TX_PE); |
3192 | } | |
3193 | ||
baef58b1 SH |
3194 | static void skge_mac_intr(struct skge_hw *hw, int port) |
3195 | { | |
57d6fa37 | 3196 | if (is_genesis(hw)) |
baef58b1 SH |
3197 | genesis_mac_intr(hw, port); |
3198 | else | |
3199 | yukon_mac_intr(hw, port); | |
3200 | } | |
3201 | ||
3202 | /* Handle device specific framing and timeout interrupts */ | |
3203 | static void skge_error_irq(struct skge_hw *hw) | |
3204 | { | |
1479d13c | 3205 | struct pci_dev *pdev = hw->pdev; |
baef58b1 SH |
3206 | u32 hwstatus = skge_read32(hw, B0_HWE_ISRC); |
3207 | ||
57d6fa37 | 3208 | if (is_genesis(hw)) { |
baef58b1 SH |
3209 | /* clear xmac errors */ |
3210 | if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1)) | |
46a60f2d | 3211 | skge_write16(hw, RX_MFF_CTRL1, MFF_CLR_INSTAT); |
baef58b1 | 3212 | if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2)) |
46a60f2d | 3213 | skge_write16(hw, RX_MFF_CTRL2, MFF_CLR_INSTAT); |
baef58b1 SH |
3214 | } else { |
3215 | /* Timestamp (unused) overflow */ | |
3216 | if (hwstatus & IS_IRQ_TIST_OV) | |
3217 | skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); | |
baef58b1 SH |
3218 | } |
3219 | ||
3220 | if (hwstatus & IS_RAM_RD_PAR) { | |
1479d13c | 3221 | dev_err(&pdev->dev, "Ram read data parity error\n"); |
baef58b1 SH |
3222 | skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR); |
3223 | } | |
3224 | ||
3225 | if (hwstatus & IS_RAM_WR_PAR) { | |
1479d13c | 3226 | dev_err(&pdev->dev, "Ram write data parity error\n"); |
baef58b1 SH |
3227 | skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR); |
3228 | } | |
3229 | ||
3230 | if (hwstatus & IS_M1_PAR_ERR) | |
3231 | skge_mac_parity(hw, 0); | |
3232 | ||
3233 | if (hwstatus & IS_M2_PAR_ERR) | |
3234 | skge_mac_parity(hw, 1); | |
3235 | ||
b9d64acc | 3236 | if (hwstatus & IS_R1_PAR_ERR) { |
1479d13c SH |
3237 | dev_err(&pdev->dev, "%s: receive queue parity error\n", |
3238 | hw->dev[0]->name); | |
baef58b1 | 3239 | skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P); |
b9d64acc | 3240 | } |
baef58b1 | 3241 | |
b9d64acc | 3242 | if (hwstatus & IS_R2_PAR_ERR) { |
1479d13c SH |
3243 | dev_err(&pdev->dev, "%s: receive queue parity error\n", |
3244 | hw->dev[1]->name); | |
baef58b1 | 3245 | skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P); |
b9d64acc | 3246 | } |
baef58b1 SH |
3247 | |
3248 | if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) { | |
b9d64acc SH |
3249 | u16 pci_status, pci_cmd; |
3250 | ||
1479d13c SH |
3251 | pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd); |
3252 | pci_read_config_word(pdev, PCI_STATUS, &pci_status); | |
baef58b1 | 3253 | |
1479d13c SH |
3254 | dev_err(&pdev->dev, "PCI error cmd=%#x status=%#x\n", |
3255 | pci_cmd, pci_status); | |
b9d64acc SH |
3256 | |
3257 | /* Write the error bits back to clear them. */ | |
3258 | pci_status &= PCI_STATUS_ERROR_BITS; | |
3259 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
1479d13c | 3260 | pci_write_config_word(pdev, PCI_COMMAND, |
b9d64acc | 3261 | pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY); |
1479d13c | 3262 | pci_write_config_word(pdev, PCI_STATUS, pci_status); |
b9d64acc | 3263 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
baef58b1 | 3264 | |
050ec18a | 3265 | /* if error still set then just ignore it */ |
baef58b1 SH |
3266 | hwstatus = skge_read32(hw, B0_HWE_ISRC); |
3267 | if (hwstatus & IS_IRQ_STAT) { | |
1479d13c | 3268 | dev_warn(&hw->pdev->dev, "unable to clear error (so ignoring them)\n"); |
baef58b1 SH |
3269 | hw->intr_mask &= ~IS_HW_ERR; |
3270 | } | |
3271 | } | |
3272 | } | |
3273 | ||
3274 | /* | |
9cbe330f | 3275 | * Interrupt from PHY are handled in tasklet (softirq) |
baef58b1 SH |
3276 | * because accessing phy registers requires spin wait which might |
3277 | * cause excess interrupt latency. | |
3278 | */ | |
9cbe330f | 3279 | static void skge_extirq(unsigned long arg) |
baef58b1 | 3280 | { |
9cbe330f | 3281 | struct skge_hw *hw = (struct skge_hw *) arg; |
baef58b1 SH |
3282 | int port; |
3283 | ||
cfc3ed79 | 3284 | for (port = 0; port < hw->ports; port++) { |
baef58b1 SH |
3285 | struct net_device *dev = hw->dev[port]; |
3286 | ||
cfc3ed79 | 3287 | if (netif_running(dev)) { |
9cbe330f SH |
3288 | struct skge_port *skge = netdev_priv(dev); |
3289 | ||
3290 | spin_lock(&hw->phy_lock); | |
57d6fa37 | 3291 | if (!is_genesis(hw)) |
baef58b1 | 3292 | yukon_phy_intr(skge); |
64f6b64d | 3293 | else if (hw->phy_type == SK_PHY_BCOM) |
45bada65 | 3294 | bcom_phy_intr(skge); |
9cbe330f | 3295 | spin_unlock(&hw->phy_lock); |
baef58b1 SH |
3296 | } |
3297 | } | |
baef58b1 | 3298 | |
7c442fa1 | 3299 | spin_lock_irq(&hw->hw_lock); |
baef58b1 SH |
3300 | hw->intr_mask |= IS_EXT_REG; |
3301 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
78bc2186 | 3302 | skge_read32(hw, B0_IMSK); |
7c442fa1 | 3303 | spin_unlock_irq(&hw->hw_lock); |
baef58b1 SH |
3304 | } |
3305 | ||
7d12e780 | 3306 | static irqreturn_t skge_intr(int irq, void *dev_id) |
baef58b1 SH |
3307 | { |
3308 | struct skge_hw *hw = dev_id; | |
cfc3ed79 | 3309 | u32 status; |
29365c90 | 3310 | int handled = 0; |
baef58b1 | 3311 | |
29365c90 | 3312 | spin_lock(&hw->hw_lock); |
cfc3ed79 SH |
3313 | /* Reading this register masks IRQ */ |
3314 | status = skge_read32(hw, B0_SP_ISRC); | |
0486a8c8 | 3315 | if (status == 0 || status == ~0) |
29365c90 | 3316 | goto out; |
baef58b1 | 3317 | |
29365c90 | 3318 | handled = 1; |
7c442fa1 | 3319 | status &= hw->intr_mask; |
cfc3ed79 SH |
3320 | if (status & IS_EXT_REG) { |
3321 | hw->intr_mask &= ~IS_EXT_REG; | |
9cbe330f | 3322 | tasklet_schedule(&hw->phy_task); |
cfc3ed79 SH |
3323 | } |
3324 | ||
513f533e | 3325 | if (status & (IS_XA1_F|IS_R1_F)) { |
bea3348e | 3326 | struct skge_port *skge = netdev_priv(hw->dev[0]); |
513f533e | 3327 | hw->intr_mask &= ~(IS_XA1_F|IS_R1_F); |
288379f0 | 3328 | napi_schedule(&skge->napi); |
baef58b1 SH |
3329 | } |
3330 | ||
7c442fa1 SH |
3331 | if (status & IS_PA_TO_TX1) |
3332 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1); | |
cfc3ed79 | 3333 | |
d25f5a67 | 3334 | if (status & IS_PA_TO_RX1) { |
da00772f | 3335 | ++hw->dev[0]->stats.rx_over_errors; |
7c442fa1 | 3336 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1); |
d25f5a67 SH |
3337 | } |
3338 | ||
d25f5a67 | 3339 | |
baef58b1 SH |
3340 | if (status & IS_MAC1) |
3341 | skge_mac_intr(hw, 0); | |
95566065 | 3342 | |
7c442fa1 | 3343 | if (hw->dev[1]) { |
bea3348e SH |
3344 | struct skge_port *skge = netdev_priv(hw->dev[1]); |
3345 | ||
513f533e SH |
3346 | if (status & (IS_XA2_F|IS_R2_F)) { |
3347 | hw->intr_mask &= ~(IS_XA2_F|IS_R2_F); | |
288379f0 | 3348 | napi_schedule(&skge->napi); |
7c442fa1 SH |
3349 | } |
3350 | ||
3351 | if (status & IS_PA_TO_RX2) { | |
da00772f | 3352 | ++hw->dev[1]->stats.rx_over_errors; |
7c442fa1 SH |
3353 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2); |
3354 | } | |
3355 | ||
3356 | if (status & IS_PA_TO_TX2) | |
3357 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2); | |
3358 | ||
3359 | if (status & IS_MAC2) | |
3360 | skge_mac_intr(hw, 1); | |
3361 | } | |
baef58b1 SH |
3362 | |
3363 | if (status & IS_HW_ERR) | |
3364 | skge_error_irq(hw); | |
3365 | ||
7e676d91 | 3366 | skge_write32(hw, B0_IMSK, hw->intr_mask); |
78bc2186 | 3367 | skge_read32(hw, B0_IMSK); |
29365c90 | 3368 | out: |
7c442fa1 | 3369 | spin_unlock(&hw->hw_lock); |
baef58b1 | 3370 | |
29365c90 | 3371 | return IRQ_RETVAL(handled); |
baef58b1 SH |
3372 | } |
3373 | ||
3374 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3375 | static void skge_netpoll(struct net_device *dev) | |
3376 | { | |
3377 | struct skge_port *skge = netdev_priv(dev); | |
3378 | ||
3379 | disable_irq(dev->irq); | |
7d12e780 | 3380 | skge_intr(dev->irq, skge->hw); |
baef58b1 SH |
3381 | enable_irq(dev->irq); |
3382 | } | |
3383 | #endif | |
3384 | ||
3385 | static int skge_set_mac_address(struct net_device *dev, void *p) | |
3386 | { | |
3387 | struct skge_port *skge = netdev_priv(dev); | |
c2681dd8 SH |
3388 | struct skge_hw *hw = skge->hw; |
3389 | unsigned port = skge->port; | |
3390 | const struct sockaddr *addr = p; | |
2eb3e621 | 3391 | u16 ctrl; |
baef58b1 SH |
3392 | |
3393 | if (!is_valid_ether_addr(addr->sa_data)) | |
3394 | return -EADDRNOTAVAIL; | |
3395 | ||
baef58b1 | 3396 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); |
c2681dd8 | 3397 | |
9cbe330f SH |
3398 | if (!netif_running(dev)) { |
3399 | memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN); | |
3400 | memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN); | |
3401 | } else { | |
3402 | /* disable Rx */ | |
3403 | spin_lock_bh(&hw->phy_lock); | |
3404 | ctrl = gma_read16(hw, port, GM_GP_CTRL); | |
3405 | gma_write16(hw, port, GM_GP_CTRL, ctrl & ~GM_GPCR_RX_ENA); | |
2eb3e621 | 3406 | |
9cbe330f SH |
3407 | memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN); |
3408 | memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN); | |
2eb3e621 | 3409 | |
57d6fa37 | 3410 | if (is_genesis(hw)) |
2eb3e621 SH |
3411 | xm_outaddr(hw, port, XM_SA, dev->dev_addr); |
3412 | else { | |
3413 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr); | |
3414 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr); | |
3415 | } | |
2eb3e621 | 3416 | |
9cbe330f SH |
3417 | gma_write16(hw, port, GM_GP_CTRL, ctrl); |
3418 | spin_unlock_bh(&hw->phy_lock); | |
3419 | } | |
c2681dd8 SH |
3420 | |
3421 | return 0; | |
baef58b1 SH |
3422 | } |
3423 | ||
3424 | static const struct { | |
3425 | u8 id; | |
3426 | const char *name; | |
3427 | } skge_chips[] = { | |
3428 | { CHIP_ID_GENESIS, "Genesis" }, | |
3429 | { CHIP_ID_YUKON, "Yukon" }, | |
3430 | { CHIP_ID_YUKON_LITE, "Yukon-Lite"}, | |
3431 | { CHIP_ID_YUKON_LP, "Yukon-LP"}, | |
baef58b1 SH |
3432 | }; |
3433 | ||
3434 | static const char *skge_board_name(const struct skge_hw *hw) | |
3435 | { | |
3436 | int i; | |
3437 | static char buf[16]; | |
3438 | ||
3439 | for (i = 0; i < ARRAY_SIZE(skge_chips); i++) | |
3440 | if (skge_chips[i].id == hw->chip_id) | |
3441 | return skge_chips[i].name; | |
3442 | ||
3443 | snprintf(buf, sizeof buf, "chipid 0x%x", hw->chip_id); | |
3444 | return buf; | |
3445 | } | |
3446 | ||
3447 | ||
3448 | /* | |
3449 | * Setup the board data structure, but don't bring up | |
3450 | * the port(s) | |
3451 | */ | |
3452 | static int skge_reset(struct skge_hw *hw) | |
3453 | { | |
adba9e23 | 3454 | u32 reg; |
b9d64acc | 3455 | u16 ctst, pci_status; |
64f6b64d | 3456 | u8 t8, mac_cfg, pmd_type; |
981d0377 | 3457 | int i; |
baef58b1 SH |
3458 | |
3459 | ctst = skge_read16(hw, B0_CTST); | |
3460 | ||
3461 | /* do a SW reset */ | |
3462 | skge_write8(hw, B0_CTST, CS_RST_SET); | |
3463 | skge_write8(hw, B0_CTST, CS_RST_CLR); | |
3464 | ||
3465 | /* clear PCI errors, if any */ | |
b9d64acc SH |
3466 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); |
3467 | skge_write8(hw, B2_TST_CTRL2, 0); | |
baef58b1 | 3468 | |
b9d64acc SH |
3469 | pci_read_config_word(hw->pdev, PCI_STATUS, &pci_status); |
3470 | pci_write_config_word(hw->pdev, PCI_STATUS, | |
3471 | pci_status | PCI_STATUS_ERROR_BITS); | |
3472 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); | |
baef58b1 SH |
3473 | skge_write8(hw, B0_CTST, CS_MRST_CLR); |
3474 | ||
3475 | /* restore CLK_RUN bits (for Yukon-Lite) */ | |
3476 | skge_write16(hw, B0_CTST, | |
3477 | ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA)); | |
3478 | ||
3479 | hw->chip_id = skge_read8(hw, B2_CHIP_ID); | |
64f6b64d | 3480 | hw->phy_type = skge_read8(hw, B2_E_1) & 0xf; |
5e1705dd SH |
3481 | pmd_type = skge_read8(hw, B2_PMD_TYP); |
3482 | hw->copper = (pmd_type == 'T' || pmd_type == '1'); | |
baef58b1 | 3483 | |
95566065 | 3484 | switch (hw->chip_id) { |
baef58b1 | 3485 | case CHIP_ID_GENESIS: |
57d6fa37 | 3486 | #ifdef CONFIG_SKGE_GENESIS |
64f6b64d SH |
3487 | switch (hw->phy_type) { |
3488 | case SK_PHY_XMAC: | |
3489 | hw->phy_addr = PHY_ADDR_XMAC; | |
3490 | break; | |
baef58b1 SH |
3491 | case SK_PHY_BCOM: |
3492 | hw->phy_addr = PHY_ADDR_BCOM; | |
3493 | break; | |
3494 | default: | |
1479d13c SH |
3495 | dev_err(&hw->pdev->dev, "unsupported phy type 0x%x\n", |
3496 | hw->phy_type); | |
baef58b1 SH |
3497 | return -EOPNOTSUPP; |
3498 | } | |
3499 | break; | |
57d6fa37 | 3500 | #else |
3501 | dev_err(&hw->pdev->dev, "Genesis chip detected but not configured\n"); | |
3502 | return -EOPNOTSUPP; | |
3503 | #endif | |
baef58b1 SH |
3504 | |
3505 | case CHIP_ID_YUKON: | |
3506 | case CHIP_ID_YUKON_LITE: | |
3507 | case CHIP_ID_YUKON_LP: | |
64f6b64d | 3508 | if (hw->phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S') |
5e1705dd | 3509 | hw->copper = 1; |
baef58b1 SH |
3510 | |
3511 | hw->phy_addr = PHY_ADDR_MARV; | |
baef58b1 SH |
3512 | break; |
3513 | ||
3514 | default: | |
1479d13c SH |
3515 | dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n", |
3516 | hw->chip_id); | |
baef58b1 SH |
3517 | return -EOPNOTSUPP; |
3518 | } | |
3519 | ||
981d0377 SH |
3520 | mac_cfg = skge_read8(hw, B2_MAC_CFG); |
3521 | hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2; | |
3522 | hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4; | |
baef58b1 SH |
3523 | |
3524 | /* read the adapters RAM size */ | |
3525 | t8 = skge_read8(hw, B2_E_0); | |
57d6fa37 | 3526 | if (is_genesis(hw)) { |
baef58b1 SH |
3527 | if (t8 == 3) { |
3528 | /* special case: 4 x 64k x 36, offset = 0x80000 */ | |
279e1dab LT |
3529 | hw->ram_size = 0x100000; |
3530 | hw->ram_offset = 0x80000; | |
baef58b1 SH |
3531 | } else |
3532 | hw->ram_size = t8 * 512; | |
67777f9b | 3533 | } else if (t8 == 0) |
279e1dab LT |
3534 | hw->ram_size = 0x20000; |
3535 | else | |
3536 | hw->ram_size = t8 * 4096; | |
baef58b1 | 3537 | |
4ebabfcb | 3538 | hw->intr_mask = IS_HW_ERR; |
cfc3ed79 | 3539 | |
4ebabfcb | 3540 | /* Use PHY IRQ for all but fiber based Genesis board */ |
57d6fa37 | 3541 | if (!(is_genesis(hw) && hw->phy_type == SK_PHY_XMAC)) |
64f6b64d SH |
3542 | hw->intr_mask |= IS_EXT_REG; |
3543 | ||
57d6fa37 | 3544 | if (is_genesis(hw)) |
baef58b1 SH |
3545 | genesis_init(hw); |
3546 | else { | |
3547 | /* switch power to VCC (WA for VAUX problem) */ | |
3548 | skge_write8(hw, B0_POWER_CTRL, | |
3549 | PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON); | |
adba9e23 | 3550 | |
050ec18a SH |
3551 | /* avoid boards with stuck Hardware error bits */ |
3552 | if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) && | |
3553 | (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) { | |
1479d13c | 3554 | dev_warn(&hw->pdev->dev, "stuck hardware sensor bit\n"); |
050ec18a SH |
3555 | hw->intr_mask &= ~IS_HW_ERR; |
3556 | } | |
3557 | ||
adba9e23 SH |
3558 | /* Clear PHY COMA */ |
3559 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
3560 | pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®); | |
3561 | reg &= ~PCI_PHY_COMA; | |
3562 | pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg); | |
3563 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); | |
3564 | ||
3565 | ||
981d0377 | 3566 | for (i = 0; i < hw->ports; i++) { |
6b0c1480 SH |
3567 | skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET); |
3568 | skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR); | |
baef58b1 SH |
3569 | } |
3570 | } | |
3571 | ||
3572 | /* turn off hardware timer (unused) */ | |
3573 | skge_write8(hw, B2_TI_CTRL, TIM_STOP); | |
3574 | skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ); | |
3575 | skge_write8(hw, B0_LED, LED_STAT_ON); | |
3576 | ||
3577 | /* enable the Tx Arbiters */ | |
981d0377 | 3578 | for (i = 0; i < hw->ports; i++) |
6b0c1480 | 3579 | skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB); |
baef58b1 SH |
3580 | |
3581 | /* Initialize ram interface */ | |
3582 | skge_write16(hw, B3_RI_CTRL, RI_RST_CLR); | |
3583 | ||
3584 | skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53); | |
3585 | skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53); | |
3586 | skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53); | |
3587 | skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53); | |
3588 | skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53); | |
3589 | skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53); | |
3590 | skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53); | |
3591 | skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53); | |
3592 | skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53); | |
3593 | skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53); | |
3594 | skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53); | |
3595 | skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53); | |
3596 | ||
3597 | skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK); | |
3598 | ||
3599 | /* Set interrupt moderation for Transmit only | |
3600 | * Receive interrupts avoided by NAPI | |
3601 | */ | |
3602 | skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F); | |
3603 | skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100)); | |
3604 | skge_write32(hw, B2_IRQM_CTRL, TIM_START); | |
3605 | ||
baef58b1 SH |
3606 | skge_write32(hw, B0_IMSK, hw->intr_mask); |
3607 | ||
981d0377 | 3608 | for (i = 0; i < hw->ports; i++) { |
57d6fa37 | 3609 | if (is_genesis(hw)) |
baef58b1 SH |
3610 | genesis_reset(hw, i); |
3611 | else | |
3612 | yukon_reset(hw, i); | |
3613 | } | |
baef58b1 SH |
3614 | |
3615 | return 0; | |
3616 | } | |
3617 | ||
678aa1f6 SH |
3618 | |
3619 | #ifdef CONFIG_SKGE_DEBUG | |
3620 | ||
3621 | static struct dentry *skge_debug; | |
3622 | ||
3623 | static int skge_debug_show(struct seq_file *seq, void *v) | |
3624 | { | |
3625 | struct net_device *dev = seq->private; | |
3626 | const struct skge_port *skge = netdev_priv(dev); | |
3627 | const struct skge_hw *hw = skge->hw; | |
3628 | const struct skge_element *e; | |
3629 | ||
3630 | if (!netif_running(dev)) | |
3631 | return -ENETDOWN; | |
3632 | ||
3633 | seq_printf(seq, "IRQ src=%x mask=%x\n", skge_read32(hw, B0_ISRC), | |
3634 | skge_read32(hw, B0_IMSK)); | |
3635 | ||
3636 | seq_printf(seq, "Tx Ring: (%d)\n", skge_avail(&skge->tx_ring)); | |
3637 | for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) { | |
3638 | const struct skge_tx_desc *t = e->desc; | |
3639 | seq_printf(seq, "%#x dma=%#x%08x %#x csum=%#x/%x/%x\n", | |
3640 | t->control, t->dma_hi, t->dma_lo, t->status, | |
3641 | t->csum_offs, t->csum_write, t->csum_start); | |
3642 | } | |
3643 | ||
2381a55c | 3644 | seq_printf(seq, "\nRx Ring:\n"); |
678aa1f6 SH |
3645 | for (e = skge->rx_ring.to_clean; ; e = e->next) { |
3646 | const struct skge_rx_desc *r = e->desc; | |
3647 | ||
3648 | if (r->control & BMU_OWN) | |
3649 | break; | |
3650 | ||
3651 | seq_printf(seq, "%#x dma=%#x%08x %#x %#x csum=%#x/%x\n", | |
3652 | r->control, r->dma_hi, r->dma_lo, r->status, | |
3653 | r->timestamp, r->csum1, r->csum1_start); | |
3654 | } | |
3655 | ||
3656 | return 0; | |
3657 | } | |
3658 | ||
3659 | static int skge_debug_open(struct inode *inode, struct file *file) | |
3660 | { | |
3661 | return single_open(file, skge_debug_show, inode->i_private); | |
3662 | } | |
3663 | ||
3664 | static const struct file_operations skge_debug_fops = { | |
3665 | .owner = THIS_MODULE, | |
3666 | .open = skge_debug_open, | |
3667 | .read = seq_read, | |
3668 | .llseek = seq_lseek, | |
3669 | .release = single_release, | |
3670 | }; | |
3671 | ||
3672 | /* | |
3673 | * Use network device events to create/remove/rename | |
3674 | * debugfs file entries | |
3675 | */ | |
3676 | static int skge_device_event(struct notifier_block *unused, | |
3677 | unsigned long event, void *ptr) | |
3678 | { | |
3679 | struct net_device *dev = ptr; | |
3680 | struct skge_port *skge; | |
3681 | struct dentry *d; | |
3682 | ||
f80d032b | 3683 | if (dev->netdev_ops->ndo_open != &skge_up || !skge_debug) |
678aa1f6 SH |
3684 | goto done; |
3685 | ||
3686 | skge = netdev_priv(dev); | |
67777f9b | 3687 | switch (event) { |
678aa1f6 SH |
3688 | case NETDEV_CHANGENAME: |
3689 | if (skge->debugfs) { | |
3690 | d = debugfs_rename(skge_debug, skge->debugfs, | |
3691 | skge_debug, dev->name); | |
3692 | if (d) | |
3693 | skge->debugfs = d; | |
3694 | else { | |
f15063cd | 3695 | netdev_info(dev, "rename failed\n"); |
678aa1f6 SH |
3696 | debugfs_remove(skge->debugfs); |
3697 | } | |
3698 | } | |
3699 | break; | |
3700 | ||
3701 | case NETDEV_GOING_DOWN: | |
3702 | if (skge->debugfs) { | |
3703 | debugfs_remove(skge->debugfs); | |
3704 | skge->debugfs = NULL; | |
3705 | } | |
3706 | break; | |
3707 | ||
3708 | case NETDEV_UP: | |
3709 | d = debugfs_create_file(dev->name, S_IRUGO, | |
3710 | skge_debug, dev, | |
3711 | &skge_debug_fops); | |
3712 | if (!d || IS_ERR(d)) | |
f15063cd | 3713 | netdev_info(dev, "debugfs create failed\n"); |
678aa1f6 SH |
3714 | else |
3715 | skge->debugfs = d; | |
3716 | break; | |
3717 | } | |
3718 | ||
3719 | done: | |
3720 | return NOTIFY_DONE; | |
3721 | } | |
3722 | ||
3723 | static struct notifier_block skge_notifier = { | |
3724 | .notifier_call = skge_device_event, | |
3725 | }; | |
3726 | ||
3727 | ||
3728 | static __init void skge_debug_init(void) | |
3729 | { | |
3730 | struct dentry *ent; | |
3731 | ||
3732 | ent = debugfs_create_dir("skge", NULL); | |
3733 | if (!ent || IS_ERR(ent)) { | |
f15063cd | 3734 | pr_info("debugfs create directory failed\n"); |
678aa1f6 SH |
3735 | return; |
3736 | } | |
3737 | ||
3738 | skge_debug = ent; | |
3739 | register_netdevice_notifier(&skge_notifier); | |
3740 | } | |
3741 | ||
3742 | static __exit void skge_debug_cleanup(void) | |
3743 | { | |
3744 | if (skge_debug) { | |
3745 | unregister_netdevice_notifier(&skge_notifier); | |
3746 | debugfs_remove(skge_debug); | |
3747 | skge_debug = NULL; | |
3748 | } | |
3749 | } | |
3750 | ||
3751 | #else | |
3752 | #define skge_debug_init() | |
3753 | #define skge_debug_cleanup() | |
3754 | #endif | |
3755 | ||
f80d032b SH |
3756 | static const struct net_device_ops skge_netdev_ops = { |
3757 | .ndo_open = skge_up, | |
3758 | .ndo_stop = skge_down, | |
00829823 | 3759 | .ndo_start_xmit = skge_xmit_frame, |
f80d032b SH |
3760 | .ndo_do_ioctl = skge_ioctl, |
3761 | .ndo_get_stats = skge_get_stats, | |
3762 | .ndo_tx_timeout = skge_tx_timeout, | |
3763 | .ndo_change_mtu = skge_change_mtu, | |
3764 | .ndo_validate_addr = eth_validate_addr, | |
3765 | .ndo_set_multicast_list = skge_set_multicast, | |
3766 | .ndo_set_mac_address = skge_set_mac_address, | |
3767 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3768 | .ndo_poll_controller = skge_netpoll, | |
3769 | #endif | |
3770 | }; | |
3771 | ||
3772 | ||
baef58b1 | 3773 | /* Initialize network device */ |
981d0377 SH |
3774 | static struct net_device *skge_devinit(struct skge_hw *hw, int port, |
3775 | int highmem) | |
baef58b1 SH |
3776 | { |
3777 | struct skge_port *skge; | |
3778 | struct net_device *dev = alloc_etherdev(sizeof(*skge)); | |
3779 | ||
3780 | if (!dev) { | |
1479d13c | 3781 | dev_err(&hw->pdev->dev, "etherdev alloc failed\n"); |
baef58b1 SH |
3782 | return NULL; |
3783 | } | |
3784 | ||
baef58b1 | 3785 | SET_NETDEV_DEV(dev, &hw->pdev->dev); |
f80d032b SH |
3786 | dev->netdev_ops = &skge_netdev_ops; |
3787 | dev->ethtool_ops = &skge_ethtool_ops; | |
baef58b1 | 3788 | dev->watchdog_timeo = TX_WATCHDOG; |
baef58b1 | 3789 | dev->irq = hw->pdev->irq; |
513f533e | 3790 | |
981d0377 SH |
3791 | if (highmem) |
3792 | dev->features |= NETIF_F_HIGHDMA; | |
baef58b1 SH |
3793 | |
3794 | skge = netdev_priv(dev); | |
bea3348e | 3795 | netif_napi_add(dev, &skge->napi, skge_poll, NAPI_WEIGHT); |
baef58b1 SH |
3796 | skge->netdev = dev; |
3797 | skge->hw = hw; | |
3798 | skge->msg_enable = netif_msg_init(debug, default_msg); | |
9cbe330f | 3799 | |
baef58b1 SH |
3800 | skge->tx_ring.count = DEFAULT_TX_RING_SIZE; |
3801 | skge->rx_ring.count = DEFAULT_RX_RING_SIZE; | |
3802 | ||
3803 | /* Auto speed and flow control */ | |
3804 | skge->autoneg = AUTONEG_ENABLE; | |
5d5c8e03 | 3805 | skge->flow_control = FLOW_MODE_SYM_OR_REM; |
baef58b1 SH |
3806 | skge->duplex = -1; |
3807 | skge->speed = -1; | |
31b619c5 | 3808 | skge->advertising = skge_supported_modes(hw); |
5b982c5b | 3809 | |
7b55a4a3 | 3810 | if (device_can_wakeup(&hw->pdev->dev)) { |
5b982c5b | 3811 | skge->wol = wol_supported(hw) & WAKE_MAGIC; |
7b55a4a3 RW |
3812 | device_set_wakeup_enable(&hw->pdev->dev, skge->wol); |
3813 | } | |
baef58b1 SH |
3814 | |
3815 | hw->dev[port] = dev; | |
3816 | ||
3817 | skge->port = port; | |
3818 | ||
64f6b64d | 3819 | /* Only used for Genesis XMAC */ |
57d6fa37 | 3820 | if (is_genesis(hw)) |
3821 | setup_timer(&skge->link_timer, xm_link_timer, (unsigned long) skge); | |
3822 | else { | |
e92702b1 MM |
3823 | dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG | |
3824 | NETIF_F_RXCSUM; | |
3825 | dev->features |= dev->hw_features; | |
baef58b1 SH |
3826 | } |
3827 | ||
3828 | /* read the mac address */ | |
3829 | memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN); | |
56230d53 | 3830 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
baef58b1 | 3831 | |
baef58b1 SH |
3832 | return dev; |
3833 | } | |
3834 | ||
3835 | static void __devinit skge_show_addr(struct net_device *dev) | |
3836 | { | |
3837 | const struct skge_port *skge = netdev_priv(dev); | |
3838 | ||
d707204c | 3839 | netif_info(skge, probe, skge->netdev, "addr %pM\n", dev->dev_addr); |
baef58b1 SH |
3840 | } |
3841 | ||
392bd0cb SG |
3842 | static int only_32bit_dma; |
3843 | ||
baef58b1 SH |
3844 | static int __devinit skge_probe(struct pci_dev *pdev, |
3845 | const struct pci_device_id *ent) | |
3846 | { | |
3847 | struct net_device *dev, *dev1; | |
3848 | struct skge_hw *hw; | |
3849 | int err, using_dac = 0; | |
3850 | ||
203babb6 SH |
3851 | err = pci_enable_device(pdev); |
3852 | if (err) { | |
1479d13c | 3853 | dev_err(&pdev->dev, "cannot enable PCI device\n"); |
baef58b1 SH |
3854 | goto err_out; |
3855 | } | |
3856 | ||
203babb6 SH |
3857 | err = pci_request_regions(pdev, DRV_NAME); |
3858 | if (err) { | |
1479d13c | 3859 | dev_err(&pdev->dev, "cannot obtain PCI resources\n"); |
baef58b1 SH |
3860 | goto err_out_disable_pdev; |
3861 | } | |
3862 | ||
3863 | pci_set_master(pdev); | |
3864 | ||
392bd0cb | 3865 | if (!only_32bit_dma && !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { |
baef58b1 | 3866 | using_dac = 1; |
6a35528a | 3867 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); |
284901a9 | 3868 | } else if (!(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) { |
93aea718 | 3869 | using_dac = 0; |
284901a9 | 3870 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
93aea718 SH |
3871 | } |
3872 | ||
3873 | if (err) { | |
1479d13c | 3874 | dev_err(&pdev->dev, "no usable DMA configuration\n"); |
93aea718 | 3875 | goto err_out_free_regions; |
baef58b1 SH |
3876 | } |
3877 | ||
3878 | #ifdef __BIG_ENDIAN | |
8f3f8193 | 3879 | /* byte swap descriptors in hardware */ |
baef58b1 SH |
3880 | { |
3881 | u32 reg; | |
3882 | ||
3883 | pci_read_config_dword(pdev, PCI_DEV_REG2, ®); | |
3884 | reg |= PCI_REV_DESC; | |
3885 | pci_write_config_dword(pdev, PCI_DEV_REG2, reg); | |
3886 | } | |
3887 | #endif | |
3888 | ||
3889 | err = -ENOMEM; | |
415e69e6 | 3890 | /* space for skge@pci:0000:04:00.0 */ |
67777f9b | 3891 | hw = kzalloc(sizeof(*hw) + strlen(DRV_NAME "@pci:") |
415e69e6 | 3892 | + strlen(pci_name(pdev)) + 1, GFP_KERNEL); |
baef58b1 | 3893 | if (!hw) { |
1479d13c | 3894 | dev_err(&pdev->dev, "cannot allocate hardware struct\n"); |
baef58b1 SH |
3895 | goto err_out_free_regions; |
3896 | } | |
415e69e6 | 3897 | sprintf(hw->irq_name, DRV_NAME "@pci:%s", pci_name(pdev)); |
baef58b1 | 3898 | |
baef58b1 | 3899 | hw->pdev = pdev; |
d38efdd6 | 3900 | spin_lock_init(&hw->hw_lock); |
9cbe330f | 3901 | spin_lock_init(&hw->phy_lock); |
164165da | 3902 | tasklet_init(&hw->phy_task, skge_extirq, (unsigned long) hw); |
baef58b1 SH |
3903 | |
3904 | hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000); | |
3905 | if (!hw->regs) { | |
1479d13c | 3906 | dev_err(&pdev->dev, "cannot map device registers\n"); |
baef58b1 SH |
3907 | goto err_out_free_hw; |
3908 | } | |
3909 | ||
baef58b1 SH |
3910 | err = skge_reset(hw); |
3911 | if (err) | |
ccdaa2a9 | 3912 | goto err_out_iounmap; |
baef58b1 | 3913 | |
f15063cd JP |
3914 | pr_info("%s addr 0x%llx irq %d chip %s rev %d\n", |
3915 | DRV_VERSION, | |
3916 | (unsigned long long)pci_resource_start(pdev, 0), pdev->irq, | |
3917 | skge_board_name(hw), hw->chip_rev); | |
baef58b1 | 3918 | |
ccdaa2a9 SH |
3919 | dev = skge_devinit(hw, 0, using_dac); |
3920 | if (!dev) | |
baef58b1 SH |
3921 | goto err_out_led_off; |
3922 | ||
fae87592 | 3923 | /* Some motherboards are broken and has zero in ROM. */ |
1479d13c SH |
3924 | if (!is_valid_ether_addr(dev->dev_addr)) |
3925 | dev_warn(&pdev->dev, "bad (zero?) ethernet address in rom\n"); | |
631ae320 | 3926 | |
203babb6 SH |
3927 | err = register_netdev(dev); |
3928 | if (err) { | |
1479d13c | 3929 | dev_err(&pdev->dev, "cannot register net device\n"); |
baef58b1 SH |
3930 | goto err_out_free_netdev; |
3931 | } | |
3932 | ||
415e69e6 | 3933 | err = request_irq(pdev->irq, skge_intr, IRQF_SHARED, hw->irq_name, hw); |
ccdaa2a9 | 3934 | if (err) { |
1479d13c | 3935 | dev_err(&pdev->dev, "%s: cannot assign irq %d\n", |
ccdaa2a9 SH |
3936 | dev->name, pdev->irq); |
3937 | goto err_out_unregister; | |
3938 | } | |
baef58b1 SH |
3939 | skge_show_addr(dev); |
3940 | ||
f1914226 MM |
3941 | if (hw->ports > 1) { |
3942 | dev1 = skge_devinit(hw, 1, using_dac); | |
3943 | if (dev1 && register_netdev(dev1) == 0) | |
baef58b1 SH |
3944 | skge_show_addr(dev1); |
3945 | else { | |
3946 | /* Failure to register second port need not be fatal */ | |
1479d13c | 3947 | dev_warn(&pdev->dev, "register of second port failed\n"); |
baef58b1 | 3948 | hw->dev[1] = NULL; |
f1914226 MM |
3949 | hw->ports = 1; |
3950 | if (dev1) | |
3951 | free_netdev(dev1); | |
baef58b1 SH |
3952 | } |
3953 | } | |
ccdaa2a9 | 3954 | pci_set_drvdata(pdev, hw); |
baef58b1 SH |
3955 | |
3956 | return 0; | |
3957 | ||
ccdaa2a9 SH |
3958 | err_out_unregister: |
3959 | unregister_netdev(dev); | |
baef58b1 SH |
3960 | err_out_free_netdev: |
3961 | free_netdev(dev); | |
3962 | err_out_led_off: | |
3963 | skge_write16(hw, B0_LED, LED_STAT_OFF); | |
baef58b1 SH |
3964 | err_out_iounmap: |
3965 | iounmap(hw->regs); | |
3966 | err_out_free_hw: | |
3967 | kfree(hw); | |
3968 | err_out_free_regions: | |
3969 | pci_release_regions(pdev); | |
3970 | err_out_disable_pdev: | |
3971 | pci_disable_device(pdev); | |
3972 | pci_set_drvdata(pdev, NULL); | |
3973 | err_out: | |
3974 | return err; | |
3975 | } | |
3976 | ||
3977 | static void __devexit skge_remove(struct pci_dev *pdev) | |
3978 | { | |
3979 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
3980 | struct net_device *dev0, *dev1; | |
3981 | ||
95566065 | 3982 | if (!hw) |
baef58b1 SH |
3983 | return; |
3984 | ||
67777f9b JP |
3985 | dev1 = hw->dev[1]; |
3986 | if (dev1) | |
baef58b1 SH |
3987 | unregister_netdev(dev1); |
3988 | dev0 = hw->dev[0]; | |
3989 | unregister_netdev(dev0); | |
3990 | ||
9cbe330f SH |
3991 | tasklet_disable(&hw->phy_task); |
3992 | ||
7c442fa1 SH |
3993 | spin_lock_irq(&hw->hw_lock); |
3994 | hw->intr_mask = 0; | |
46a60f2d | 3995 | skge_write32(hw, B0_IMSK, 0); |
78bc2186 | 3996 | skge_read32(hw, B0_IMSK); |
7c442fa1 SH |
3997 | spin_unlock_irq(&hw->hw_lock); |
3998 | ||
46a60f2d | 3999 | skge_write16(hw, B0_LED, LED_STAT_OFF); |
46a60f2d SH |
4000 | skge_write8(hw, B0_CTST, CS_RST_SET); |
4001 | ||
baef58b1 SH |
4002 | free_irq(pdev->irq, hw); |
4003 | pci_release_regions(pdev); | |
4004 | pci_disable_device(pdev); | |
4005 | if (dev1) | |
4006 | free_netdev(dev1); | |
4007 | free_netdev(dev0); | |
46a60f2d | 4008 | |
baef58b1 SH |
4009 | iounmap(hw->regs); |
4010 | kfree(hw); | |
4011 | pci_set_drvdata(pdev, NULL); | |
4012 | } | |
4013 | ||
4014 | #ifdef CONFIG_PM | |
7dbf6acd | 4015 | static int skge_suspend(struct device *dev) |
baef58b1 | 4016 | { |
7dbf6acd | 4017 | struct pci_dev *pdev = to_pci_dev(dev); |
baef58b1 | 4018 | struct skge_hw *hw = pci_get_drvdata(pdev); |
7dbf6acd | 4019 | int i; |
a504e64a | 4020 | |
e3b7df17 SH |
4021 | if (!hw) |
4022 | return 0; | |
4023 | ||
d38efdd6 | 4024 | for (i = 0; i < hw->ports; i++) { |
baef58b1 | 4025 | struct net_device *dev = hw->dev[i]; |
a504e64a | 4026 | struct skge_port *skge = netdev_priv(dev); |
baef58b1 | 4027 | |
a504e64a SH |
4028 | if (netif_running(dev)) |
4029 | skge_down(dev); | |
7dbf6acd | 4030 | |
a504e64a SH |
4031 | if (skge->wol) |
4032 | skge_wol_init(skge); | |
baef58b1 SH |
4033 | } |
4034 | ||
d38efdd6 | 4035 | skge_write32(hw, B0_IMSK, 0); |
5177b324 | 4036 | |
baef58b1 SH |
4037 | return 0; |
4038 | } | |
4039 | ||
7dbf6acd | 4040 | static int skge_resume(struct device *dev) |
baef58b1 | 4041 | { |
7dbf6acd | 4042 | struct pci_dev *pdev = to_pci_dev(dev); |
baef58b1 | 4043 | struct skge_hw *hw = pci_get_drvdata(pdev); |
d38efdd6 | 4044 | int i, err; |
baef58b1 | 4045 | |
e3b7df17 SH |
4046 | if (!hw) |
4047 | return 0; | |
4048 | ||
d38efdd6 SH |
4049 | err = skge_reset(hw); |
4050 | if (err) | |
4051 | goto out; | |
baef58b1 | 4052 | |
d38efdd6 | 4053 | for (i = 0; i < hw->ports; i++) { |
baef58b1 | 4054 | struct net_device *dev = hw->dev[i]; |
d38efdd6 | 4055 | |
d38efdd6 SH |
4056 | if (netif_running(dev)) { |
4057 | err = skge_up(dev); | |
4058 | ||
4059 | if (err) { | |
f15063cd | 4060 | netdev_err(dev, "could not up: %d\n", err); |
edd702e8 | 4061 | dev_close(dev); |
d38efdd6 SH |
4062 | goto out; |
4063 | } | |
baef58b1 SH |
4064 | } |
4065 | } | |
d38efdd6 SH |
4066 | out: |
4067 | return err; | |
baef58b1 | 4068 | } |
7dbf6acd | 4069 | |
4070 | static SIMPLE_DEV_PM_OPS(skge_pm_ops, skge_suspend, skge_resume); | |
4071 | #define SKGE_PM_OPS (&skge_pm_ops) | |
4072 | ||
4073 | #else | |
4074 | ||
4075 | #define SKGE_PM_OPS NULL | |
baef58b1 SH |
4076 | #endif |
4077 | ||
692412b3 SH |
4078 | static void skge_shutdown(struct pci_dev *pdev) |
4079 | { | |
4080 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
7dbf6acd | 4081 | int i; |
692412b3 | 4082 | |
e3b7df17 SH |
4083 | if (!hw) |
4084 | return; | |
4085 | ||
692412b3 SH |
4086 | for (i = 0; i < hw->ports; i++) { |
4087 | struct net_device *dev = hw->dev[i]; | |
4088 | struct skge_port *skge = netdev_priv(dev); | |
4089 | ||
4090 | if (skge->wol) | |
4091 | skge_wol_init(skge); | |
692412b3 SH |
4092 | } |
4093 | ||
7dbf6acd | 4094 | pci_wake_from_d3(pdev, device_may_wakeup(&pdev->dev)); |
692412b3 | 4095 | pci_set_power_state(pdev, PCI_D3hot); |
692412b3 SH |
4096 | } |
4097 | ||
baef58b1 SH |
4098 | static struct pci_driver skge_driver = { |
4099 | .name = DRV_NAME, | |
4100 | .id_table = skge_id_table, | |
4101 | .probe = skge_probe, | |
4102 | .remove = __devexit_p(skge_remove), | |
692412b3 | 4103 | .shutdown = skge_shutdown, |
7dbf6acd | 4104 | .driver.pm = SKGE_PM_OPS, |
baef58b1 SH |
4105 | }; |
4106 | ||
392bd0cb SG |
4107 | static struct dmi_system_id skge_32bit_dma_boards[] = { |
4108 | { | |
4109 | .ident = "Gigabyte nForce boards", | |
4110 | .matches = { | |
4111 | DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co"), | |
4112 | DMI_MATCH(DMI_BOARD_NAME, "nForce"), | |
4113 | }, | |
4114 | }, | |
4115 | {} | |
4116 | }; | |
4117 | ||
baef58b1 SH |
4118 | static int __init skge_init_module(void) |
4119 | { | |
392bd0cb SG |
4120 | if (dmi_check_system(skge_32bit_dma_boards)) |
4121 | only_32bit_dma = 1; | |
678aa1f6 | 4122 | skge_debug_init(); |
29917620 | 4123 | return pci_register_driver(&skge_driver); |
baef58b1 SH |
4124 | } |
4125 | ||
4126 | static void __exit skge_cleanup_module(void) | |
4127 | { | |
4128 | pci_unregister_driver(&skge_driver); | |
678aa1f6 | 4129 | skge_debug_cleanup(); |
baef58b1 SH |
4130 | } |
4131 | ||
4132 | module_init(skge_init_module); | |
4133 | module_exit(skge_cleanup_module); |