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Commit | Line | Data |
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baef58b1 SH |
1 | /* |
2 | * New driver for Marvell Yukon chipset and SysKonnect Gigabit | |
3 | * Ethernet adapters. Based on earlier sk98lin, e100 and | |
4 | * FreeBSD if_sk drivers. | |
5 | * | |
6 | * This driver intentionally does not support all the features | |
7 | * of the original driver such as link fail-over and link management because | |
8 | * those should be done at higher levels. | |
9 | * | |
747802ab | 10 | * Copyright (C) 2004, 2005 Stephen Hemminger <shemminger@osdl.org> |
baef58b1 SH |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
798b6b19 | 14 | * the Free Software Foundation; either version 2 of the License. |
baef58b1 SH |
15 | * |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | */ | |
25 | ||
14c85021 | 26 | #include <linux/in.h> |
baef58b1 SH |
27 | #include <linux/kernel.h> |
28 | #include <linux/module.h> | |
29 | #include <linux/moduleparam.h> | |
30 | #include <linux/netdevice.h> | |
31 | #include <linux/etherdevice.h> | |
32 | #include <linux/ethtool.h> | |
33 | #include <linux/pci.h> | |
34 | #include <linux/if_vlan.h> | |
35 | #include <linux/ip.h> | |
36 | #include <linux/delay.h> | |
37 | #include <linux/crc32.h> | |
4075400b | 38 | #include <linux/dma-mapping.h> |
2cd8e5d3 | 39 | #include <linux/mii.h> |
baef58b1 SH |
40 | #include <asm/irq.h> |
41 | ||
42 | #include "skge.h" | |
43 | ||
44 | #define DRV_NAME "skge" | |
a5f8f3b6 | 45 | #define DRV_VERSION "1.11" |
baef58b1 SH |
46 | #define PFX DRV_NAME " " |
47 | ||
48 | #define DEFAULT_TX_RING_SIZE 128 | |
49 | #define DEFAULT_RX_RING_SIZE 512 | |
50 | #define MAX_TX_RING_SIZE 1024 | |
9db96479 | 51 | #define TX_LOW_WATER (MAX_SKB_FRAGS + 1) |
baef58b1 | 52 | #define MAX_RX_RING_SIZE 4096 |
19a33d4e SH |
53 | #define RX_COPY_THRESHOLD 128 |
54 | #define RX_BUF_SIZE 1536 | |
baef58b1 SH |
55 | #define PHY_RETRIES 1000 |
56 | #define ETH_JUMBO_MTU 9000 | |
57 | #define TX_WATCHDOG (5 * HZ) | |
58 | #define NAPI_WEIGHT 64 | |
6abebb53 | 59 | #define BLINK_MS 250 |
64f6b64d | 60 | #define LINK_HZ (HZ/2) |
baef58b1 SH |
61 | |
62 | MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver"); | |
65ebe634 | 63 | MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>"); |
baef58b1 SH |
64 | MODULE_LICENSE("GPL"); |
65 | MODULE_VERSION(DRV_VERSION); | |
66 | ||
67 | static const u32 default_msg | |
68 | = NETIF_MSG_DRV| NETIF_MSG_PROBE| NETIF_MSG_LINK | |
69 | | NETIF_MSG_IFUP| NETIF_MSG_IFDOWN; | |
70 | ||
71 | static int debug = -1; /* defaults above */ | |
72 | module_param(debug, int, 0); | |
73 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
74 | ||
75 | static const struct pci_device_id skge_id_table[] = { | |
275834d1 SH |
76 | { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940) }, |
77 | { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940B) }, | |
78 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE) }, | |
79 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU) }, | |
f19841f5 | 80 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, PCI_DEVICE_ID_DLINK_DGE510T) }, |
2d2a3871 | 81 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b01) }, /* DGE-530T */ |
275834d1 SH |
82 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) }, |
83 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */ | |
84 | { PCI_DEVICE(PCI_VENDOR_ID_CNET, PCI_DEVICE_ID_CNET_GIGACARD) }, | |
275834d1 | 85 | { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1064) }, |
f19841f5 | 86 | { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015 }, |
baef58b1 SH |
87 | { 0 } |
88 | }; | |
89 | MODULE_DEVICE_TABLE(pci, skge_id_table); | |
90 | ||
91 | static int skge_up(struct net_device *dev); | |
92 | static int skge_down(struct net_device *dev); | |
ee294dcd | 93 | static void skge_phy_reset(struct skge_port *skge); |
513f533e | 94 | static void skge_tx_clean(struct net_device *dev); |
2cd8e5d3 SH |
95 | static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); |
96 | static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); | |
baef58b1 SH |
97 | static void genesis_get_stats(struct skge_port *skge, u64 *data); |
98 | static void yukon_get_stats(struct skge_port *skge, u64 *data); | |
99 | static void yukon_init(struct skge_hw *hw, int port); | |
baef58b1 | 100 | static void genesis_mac_init(struct skge_hw *hw, int port); |
45bada65 | 101 | static void genesis_link_up(struct skge_port *skge); |
baef58b1 | 102 | |
7e676d91 | 103 | /* Avoid conditionals by using array */ |
baef58b1 SH |
104 | static const int txqaddr[] = { Q_XA1, Q_XA2 }; |
105 | static const int rxqaddr[] = { Q_R1, Q_R2 }; | |
106 | static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F }; | |
107 | static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F }; | |
4ebabfcb SH |
108 | static const u32 napimask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F }; |
109 | static const u32 portmask[] = { IS_PORT_1, IS_PORT_2 }; | |
baef58b1 | 110 | |
baef58b1 SH |
111 | static int skge_get_regs_len(struct net_device *dev) |
112 | { | |
c3f8be96 | 113 | return 0x4000; |
baef58b1 SH |
114 | } |
115 | ||
116 | /* | |
c3f8be96 SH |
117 | * Returns copy of whole control register region |
118 | * Note: skip RAM address register because accessing it will | |
119 | * cause bus hangs! | |
baef58b1 SH |
120 | */ |
121 | static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
122 | void *p) | |
123 | { | |
124 | const struct skge_port *skge = netdev_priv(dev); | |
baef58b1 | 125 | const void __iomem *io = skge->hw->regs; |
baef58b1 SH |
126 | |
127 | regs->version = 1; | |
c3f8be96 SH |
128 | memset(p, 0, regs->len); |
129 | memcpy_fromio(p, io, B3_RAM_ADDR); | |
baef58b1 | 130 | |
c3f8be96 SH |
131 | memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1, |
132 | regs->len - B3_RI_WTO_R1); | |
baef58b1 SH |
133 | } |
134 | ||
8f3f8193 | 135 | /* Wake on Lan only supported on Yukon chips with rev 1 or above */ |
a504e64a | 136 | static u32 wol_supported(const struct skge_hw *hw) |
baef58b1 | 137 | { |
d17ecb23 | 138 | if (hw->chip_id == CHIP_ID_GENESIS) |
a504e64a | 139 | return 0; |
d17ecb23 SH |
140 | |
141 | if (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0) | |
142 | return 0; | |
143 | ||
144 | return WAKE_MAGIC | WAKE_PHY; | |
a504e64a SH |
145 | } |
146 | ||
147 | static u32 pci_wake_enabled(struct pci_dev *dev) | |
148 | { | |
149 | int pm = pci_find_capability(dev, PCI_CAP_ID_PM); | |
150 | u16 value; | |
151 | ||
152 | /* If device doesn't support PM Capabilities, but request is to disable | |
153 | * wake events, it's a nop; otherwise fail */ | |
154 | if (!pm) | |
155 | return 0; | |
156 | ||
157 | pci_read_config_word(dev, pm + PCI_PM_PMC, &value); | |
158 | ||
159 | value &= PCI_PM_CAP_PME_MASK; | |
160 | value >>= ffs(PCI_PM_CAP_PME_MASK) - 1; /* First bit of mask */ | |
161 | ||
162 | return value != 0; | |
163 | } | |
164 | ||
165 | static void skge_wol_init(struct skge_port *skge) | |
166 | { | |
167 | struct skge_hw *hw = skge->hw; | |
168 | int port = skge->port; | |
692412b3 | 169 | u16 ctrl; |
a504e64a | 170 | |
a504e64a SH |
171 | skge_write16(hw, B0_CTST, CS_RST_CLR); |
172 | skge_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR); | |
173 | ||
692412b3 SH |
174 | /* Turn on Vaux */ |
175 | skge_write8(hw, B0_POWER_CTRL, | |
176 | PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_ON | PC_VCC_OFF); | |
a504e64a | 177 | |
692412b3 SH |
178 | /* WA code for COMA mode -- clear PHY reset */ |
179 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
180 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) { | |
181 | u32 reg = skge_read32(hw, B2_GP_IO); | |
182 | reg |= GP_DIR_9; | |
183 | reg &= ~GP_IO_9; | |
184 | skge_write32(hw, B2_GP_IO, reg); | |
185 | } | |
a504e64a | 186 | |
692412b3 SH |
187 | skge_write32(hw, SK_REG(port, GPHY_CTRL), |
188 | GPC_DIS_SLEEP | | |
189 | GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 | | |
190 | GPC_ANEG_1 | GPC_RST_SET); | |
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_CLR); | |
196 | ||
197 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); | |
198 | ||
199 | /* Force to 10/100 skge_reset will re-enable on resume */ | |
200 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, | |
201 | PHY_AN_100FULL | PHY_AN_100HALF | | |
202 | PHY_AN_10FULL | PHY_AN_10HALF| PHY_AN_CSMA); | |
203 | /* no 1000 HD/FD */ | |
204 | gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, 0); | |
205 | gm_phy_write(hw, port, PHY_MARV_CTRL, | |
206 | PHY_CT_RESET | PHY_CT_SPS_LSB | PHY_CT_ANE | | |
207 | PHY_CT_RE_CFG | PHY_CT_DUP_MD); | |
a504e64a | 208 | |
a504e64a SH |
209 | |
210 | /* Set GMAC to no flow control and auto update for speed/duplex */ | |
211 | gma_write16(hw, port, GM_GP_CTRL, | |
212 | GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA| | |
213 | GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS); | |
214 | ||
215 | /* Set WOL address */ | |
216 | memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR), | |
217 | skge->netdev->dev_addr, ETH_ALEN); | |
218 | ||
219 | /* Turn on appropriate WOL control bits */ | |
220 | skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT); | |
221 | ctrl = 0; | |
222 | if (skge->wol & WAKE_PHY) | |
223 | ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT; | |
224 | else | |
225 | ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT; | |
226 | ||
227 | if (skge->wol & WAKE_MAGIC) | |
228 | ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT; | |
229 | else | |
230 | ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;; | |
231 | ||
232 | ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT; | |
233 | skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl); | |
234 | ||
235 | /* block receiver */ | |
236 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); | |
baef58b1 SH |
237 | } |
238 | ||
239 | static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
240 | { | |
241 | struct skge_port *skge = netdev_priv(dev); | |
242 | ||
a504e64a SH |
243 | wol->supported = wol_supported(skge->hw); |
244 | wol->wolopts = skge->wol; | |
baef58b1 SH |
245 | } |
246 | ||
247 | static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
248 | { | |
249 | struct skge_port *skge = netdev_priv(dev); | |
250 | struct skge_hw *hw = skge->hw; | |
251 | ||
692412b3 | 252 | if (wol->wolopts & ~wol_supported(hw)) |
baef58b1 SH |
253 | return -EOPNOTSUPP; |
254 | ||
a504e64a | 255 | skge->wol = wol->wolopts; |
baef58b1 SH |
256 | return 0; |
257 | } | |
258 | ||
8f3f8193 SH |
259 | /* Determine supported/advertised modes based on hardware. |
260 | * Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx | |
31b619c5 SH |
261 | */ |
262 | static u32 skge_supported_modes(const struct skge_hw *hw) | |
263 | { | |
264 | u32 supported; | |
265 | ||
5e1705dd | 266 | if (hw->copper) { |
31b619c5 SH |
267 | supported = SUPPORTED_10baseT_Half |
268 | | SUPPORTED_10baseT_Full | |
269 | | SUPPORTED_100baseT_Half | |
270 | | SUPPORTED_100baseT_Full | |
271 | | SUPPORTED_1000baseT_Half | |
272 | | SUPPORTED_1000baseT_Full | |
273 | | SUPPORTED_Autoneg| SUPPORTED_TP; | |
274 | ||
275 | if (hw->chip_id == CHIP_ID_GENESIS) | |
276 | supported &= ~(SUPPORTED_10baseT_Half | |
277 | | SUPPORTED_10baseT_Full | |
278 | | SUPPORTED_100baseT_Half | |
279 | | SUPPORTED_100baseT_Full); | |
280 | ||
281 | else if (hw->chip_id == CHIP_ID_YUKON) | |
282 | supported &= ~SUPPORTED_1000baseT_Half; | |
283 | } else | |
4b67be99 SH |
284 | supported = SUPPORTED_1000baseT_Full | SUPPORTED_1000baseT_Half |
285 | | SUPPORTED_FIBRE | SUPPORTED_Autoneg; | |
31b619c5 SH |
286 | |
287 | return supported; | |
288 | } | |
baef58b1 SH |
289 | |
290 | static int skge_get_settings(struct net_device *dev, | |
291 | struct ethtool_cmd *ecmd) | |
292 | { | |
293 | struct skge_port *skge = netdev_priv(dev); | |
294 | struct skge_hw *hw = skge->hw; | |
295 | ||
296 | ecmd->transceiver = XCVR_INTERNAL; | |
31b619c5 | 297 | ecmd->supported = skge_supported_modes(hw); |
baef58b1 | 298 | |
5e1705dd | 299 | if (hw->copper) { |
baef58b1 SH |
300 | ecmd->port = PORT_TP; |
301 | ecmd->phy_address = hw->phy_addr; | |
31b619c5 | 302 | } else |
baef58b1 | 303 | ecmd->port = PORT_FIBRE; |
baef58b1 SH |
304 | |
305 | ecmd->advertising = skge->advertising; | |
306 | ecmd->autoneg = skge->autoneg; | |
307 | ecmd->speed = skge->speed; | |
308 | ecmd->duplex = skge->duplex; | |
309 | return 0; | |
310 | } | |
311 | ||
baef58b1 SH |
312 | static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
313 | { | |
314 | struct skge_port *skge = netdev_priv(dev); | |
315 | const struct skge_hw *hw = skge->hw; | |
31b619c5 | 316 | u32 supported = skge_supported_modes(hw); |
baef58b1 SH |
317 | |
318 | if (ecmd->autoneg == AUTONEG_ENABLE) { | |
31b619c5 SH |
319 | ecmd->advertising = supported; |
320 | skge->duplex = -1; | |
321 | skge->speed = -1; | |
baef58b1 | 322 | } else { |
31b619c5 SH |
323 | u32 setting; |
324 | ||
2c668514 | 325 | switch (ecmd->speed) { |
baef58b1 | 326 | case SPEED_1000: |
31b619c5 SH |
327 | if (ecmd->duplex == DUPLEX_FULL) |
328 | setting = SUPPORTED_1000baseT_Full; | |
329 | else if (ecmd->duplex == DUPLEX_HALF) | |
330 | setting = SUPPORTED_1000baseT_Half; | |
331 | else | |
332 | return -EINVAL; | |
baef58b1 SH |
333 | break; |
334 | case SPEED_100: | |
31b619c5 SH |
335 | if (ecmd->duplex == DUPLEX_FULL) |
336 | setting = SUPPORTED_100baseT_Full; | |
337 | else if (ecmd->duplex == DUPLEX_HALF) | |
338 | setting = SUPPORTED_100baseT_Half; | |
339 | else | |
340 | return -EINVAL; | |
341 | break; | |
342 | ||
baef58b1 | 343 | case SPEED_10: |
31b619c5 SH |
344 | if (ecmd->duplex == DUPLEX_FULL) |
345 | setting = SUPPORTED_10baseT_Full; | |
346 | else if (ecmd->duplex == DUPLEX_HALF) | |
347 | setting = SUPPORTED_10baseT_Half; | |
348 | else | |
baef58b1 SH |
349 | return -EINVAL; |
350 | break; | |
351 | default: | |
352 | return -EINVAL; | |
353 | } | |
31b619c5 SH |
354 | |
355 | if ((setting & supported) == 0) | |
356 | return -EINVAL; | |
357 | ||
358 | skge->speed = ecmd->speed; | |
359 | skge->duplex = ecmd->duplex; | |
baef58b1 SH |
360 | } |
361 | ||
362 | skge->autoneg = ecmd->autoneg; | |
baef58b1 SH |
363 | skge->advertising = ecmd->advertising; |
364 | ||
ee294dcd SH |
365 | if (netif_running(dev)) |
366 | skge_phy_reset(skge); | |
367 | ||
baef58b1 SH |
368 | return (0); |
369 | } | |
370 | ||
371 | static void skge_get_drvinfo(struct net_device *dev, | |
372 | struct ethtool_drvinfo *info) | |
373 | { | |
374 | struct skge_port *skge = netdev_priv(dev); | |
375 | ||
376 | strcpy(info->driver, DRV_NAME); | |
377 | strcpy(info->version, DRV_VERSION); | |
378 | strcpy(info->fw_version, "N/A"); | |
379 | strcpy(info->bus_info, pci_name(skge->hw->pdev)); | |
380 | } | |
381 | ||
382 | static const struct skge_stat { | |
383 | char name[ETH_GSTRING_LEN]; | |
384 | u16 xmac_offset; | |
385 | u16 gma_offset; | |
386 | } skge_stats[] = { | |
387 | { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI }, | |
388 | { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI }, | |
389 | ||
390 | { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK }, | |
391 | { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK }, | |
392 | { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK }, | |
393 | { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK }, | |
394 | { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK }, | |
395 | { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK }, | |
396 | { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE }, | |
397 | { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE }, | |
398 | ||
399 | { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL }, | |
400 | { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL }, | |
401 | { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL }, | |
402 | { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL }, | |
403 | { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR }, | |
404 | { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV }, | |
405 | ||
406 | { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR }, | |
407 | { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT }, | |
408 | { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG }, | |
409 | { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR }, | |
410 | { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR }, | |
411 | }; | |
412 | ||
b9f2c044 | 413 | static int skge_get_sset_count(struct net_device *dev, int sset) |
baef58b1 | 414 | { |
b9f2c044 JG |
415 | switch (sset) { |
416 | case ETH_SS_STATS: | |
417 | return ARRAY_SIZE(skge_stats); | |
418 | default: | |
419 | return -EOPNOTSUPP; | |
420 | } | |
baef58b1 SH |
421 | } |
422 | ||
423 | static void skge_get_ethtool_stats(struct net_device *dev, | |
424 | struct ethtool_stats *stats, u64 *data) | |
425 | { | |
426 | struct skge_port *skge = netdev_priv(dev); | |
427 | ||
428 | if (skge->hw->chip_id == CHIP_ID_GENESIS) | |
429 | genesis_get_stats(skge, data); | |
430 | else | |
431 | yukon_get_stats(skge, data); | |
432 | } | |
433 | ||
434 | /* Use hardware MIB variables for critical path statistics and | |
435 | * transmit feedback not reported at interrupt. | |
436 | * Other errors are accounted for in interrupt handler. | |
437 | */ | |
438 | static struct net_device_stats *skge_get_stats(struct net_device *dev) | |
439 | { | |
440 | struct skge_port *skge = netdev_priv(dev); | |
441 | u64 data[ARRAY_SIZE(skge_stats)]; | |
442 | ||
443 | if (skge->hw->chip_id == CHIP_ID_GENESIS) | |
444 | genesis_get_stats(skge, data); | |
445 | else | |
446 | yukon_get_stats(skge, data); | |
447 | ||
448 | skge->net_stats.tx_bytes = data[0]; | |
449 | skge->net_stats.rx_bytes = data[1]; | |
450 | skge->net_stats.tx_packets = data[2] + data[4] + data[6]; | |
451 | skge->net_stats.rx_packets = data[3] + data[5] + data[7]; | |
4c180fc4 | 452 | skge->net_stats.multicast = data[3] + data[5]; |
baef58b1 SH |
453 | skge->net_stats.collisions = data[10]; |
454 | skge->net_stats.tx_aborted_errors = data[12]; | |
455 | ||
456 | return &skge->net_stats; | |
457 | } | |
458 | ||
459 | static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
460 | { | |
461 | int i; | |
462 | ||
95566065 | 463 | switch (stringset) { |
baef58b1 SH |
464 | case ETH_SS_STATS: |
465 | for (i = 0; i < ARRAY_SIZE(skge_stats); i++) | |
466 | memcpy(data + i * ETH_GSTRING_LEN, | |
467 | skge_stats[i].name, ETH_GSTRING_LEN); | |
468 | break; | |
469 | } | |
470 | } | |
471 | ||
472 | static void skge_get_ring_param(struct net_device *dev, | |
473 | struct ethtool_ringparam *p) | |
474 | { | |
475 | struct skge_port *skge = netdev_priv(dev); | |
476 | ||
477 | p->rx_max_pending = MAX_RX_RING_SIZE; | |
478 | p->tx_max_pending = MAX_TX_RING_SIZE; | |
479 | p->rx_mini_max_pending = 0; | |
480 | p->rx_jumbo_max_pending = 0; | |
481 | ||
482 | p->rx_pending = skge->rx_ring.count; | |
483 | p->tx_pending = skge->tx_ring.count; | |
484 | p->rx_mini_pending = 0; | |
485 | p->rx_jumbo_pending = 0; | |
486 | } | |
487 | ||
488 | static int skge_set_ring_param(struct net_device *dev, | |
489 | struct ethtool_ringparam *p) | |
490 | { | |
491 | struct skge_port *skge = netdev_priv(dev); | |
3b8bb472 | 492 | int err; |
baef58b1 SH |
493 | |
494 | if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE || | |
9db96479 | 495 | p->tx_pending < TX_LOW_WATER || p->tx_pending > MAX_TX_RING_SIZE) |
baef58b1 SH |
496 | return -EINVAL; |
497 | ||
498 | skge->rx_ring.count = p->rx_pending; | |
499 | skge->tx_ring.count = p->tx_pending; | |
500 | ||
501 | if (netif_running(dev)) { | |
502 | skge_down(dev); | |
3b8bb472 SH |
503 | err = skge_up(dev); |
504 | if (err) | |
505 | dev_close(dev); | |
baef58b1 SH |
506 | } |
507 | ||
508 | return 0; | |
509 | } | |
510 | ||
511 | static u32 skge_get_msglevel(struct net_device *netdev) | |
512 | { | |
513 | struct skge_port *skge = netdev_priv(netdev); | |
514 | return skge->msg_enable; | |
515 | } | |
516 | ||
517 | static void skge_set_msglevel(struct net_device *netdev, u32 value) | |
518 | { | |
519 | struct skge_port *skge = netdev_priv(netdev); | |
520 | skge->msg_enable = value; | |
521 | } | |
522 | ||
523 | static int skge_nway_reset(struct net_device *dev) | |
524 | { | |
525 | struct skge_port *skge = netdev_priv(dev); | |
baef58b1 SH |
526 | |
527 | if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev)) | |
528 | return -EINVAL; | |
529 | ||
ee294dcd | 530 | skge_phy_reset(skge); |
baef58b1 SH |
531 | return 0; |
532 | } | |
533 | ||
534 | static int skge_set_sg(struct net_device *dev, u32 data) | |
535 | { | |
536 | struct skge_port *skge = netdev_priv(dev); | |
537 | struct skge_hw *hw = skge->hw; | |
538 | ||
539 | if (hw->chip_id == CHIP_ID_GENESIS && data) | |
540 | return -EOPNOTSUPP; | |
541 | return ethtool_op_set_sg(dev, data); | |
542 | } | |
543 | ||
544 | static int skge_set_tx_csum(struct net_device *dev, u32 data) | |
545 | { | |
546 | struct skge_port *skge = netdev_priv(dev); | |
547 | struct skge_hw *hw = skge->hw; | |
548 | ||
549 | if (hw->chip_id == CHIP_ID_GENESIS && data) | |
550 | return -EOPNOTSUPP; | |
551 | ||
552 | return ethtool_op_set_tx_csum(dev, data); | |
553 | } | |
554 | ||
555 | static u32 skge_get_rx_csum(struct net_device *dev) | |
556 | { | |
557 | struct skge_port *skge = netdev_priv(dev); | |
558 | ||
559 | return skge->rx_csum; | |
560 | } | |
561 | ||
562 | /* Only Yukon supports checksum offload. */ | |
563 | static int skge_set_rx_csum(struct net_device *dev, u32 data) | |
564 | { | |
565 | struct skge_port *skge = netdev_priv(dev); | |
566 | ||
567 | if (skge->hw->chip_id == CHIP_ID_GENESIS && data) | |
568 | return -EOPNOTSUPP; | |
569 | ||
570 | skge->rx_csum = data; | |
571 | return 0; | |
572 | } | |
573 | ||
baef58b1 SH |
574 | static void skge_get_pauseparam(struct net_device *dev, |
575 | struct ethtool_pauseparam *ecmd) | |
576 | { | |
577 | struct skge_port *skge = netdev_priv(dev); | |
578 | ||
5d5c8e03 SH |
579 | ecmd->rx_pause = (skge->flow_control == FLOW_MODE_SYMMETRIC) |
580 | || (skge->flow_control == FLOW_MODE_SYM_OR_REM); | |
581 | ecmd->tx_pause = ecmd->rx_pause || (skge->flow_control == FLOW_MODE_LOC_SEND); | |
baef58b1 | 582 | |
5d5c8e03 | 583 | ecmd->autoneg = ecmd->rx_pause || ecmd->tx_pause; |
baef58b1 SH |
584 | } |
585 | ||
586 | static int skge_set_pauseparam(struct net_device *dev, | |
587 | struct ethtool_pauseparam *ecmd) | |
588 | { | |
589 | struct skge_port *skge = netdev_priv(dev); | |
5d5c8e03 | 590 | struct ethtool_pauseparam old; |
baef58b1 | 591 | |
5d5c8e03 SH |
592 | skge_get_pauseparam(dev, &old); |
593 | ||
594 | if (ecmd->autoneg != old.autoneg) | |
595 | skge->flow_control = ecmd->autoneg ? FLOW_MODE_NONE : FLOW_MODE_SYMMETRIC; | |
596 | else { | |
597 | if (ecmd->rx_pause && ecmd->tx_pause) | |
598 | skge->flow_control = FLOW_MODE_SYMMETRIC; | |
599 | else if (ecmd->rx_pause && !ecmd->tx_pause) | |
600 | skge->flow_control = FLOW_MODE_SYM_OR_REM; | |
601 | else if (!ecmd->rx_pause && ecmd->tx_pause) | |
602 | skge->flow_control = FLOW_MODE_LOC_SEND; | |
603 | else | |
604 | skge->flow_control = FLOW_MODE_NONE; | |
605 | } | |
baef58b1 | 606 | |
e8df8554 SH |
607 | if (netif_running(dev)) |
608 | skge_phy_reset(skge); | |
5d5c8e03 | 609 | |
baef58b1 SH |
610 | return 0; |
611 | } | |
612 | ||
613 | /* Chip internal frequency for clock calculations */ | |
614 | static inline u32 hwkhz(const struct skge_hw *hw) | |
615 | { | |
187ff3b8 | 616 | return (hw->chip_id == CHIP_ID_GENESIS) ? 53125 : 78125; |
baef58b1 SH |
617 | } |
618 | ||
8f3f8193 | 619 | /* Chip HZ to microseconds */ |
baef58b1 SH |
620 | static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks) |
621 | { | |
622 | return (ticks * 1000) / hwkhz(hw); | |
623 | } | |
624 | ||
8f3f8193 | 625 | /* Microseconds to chip HZ */ |
baef58b1 SH |
626 | static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec) |
627 | { | |
628 | return hwkhz(hw) * usec / 1000; | |
629 | } | |
630 | ||
631 | static int skge_get_coalesce(struct net_device *dev, | |
632 | struct ethtool_coalesce *ecmd) | |
633 | { | |
634 | struct skge_port *skge = netdev_priv(dev); | |
635 | struct skge_hw *hw = skge->hw; | |
636 | int port = skge->port; | |
637 | ||
638 | ecmd->rx_coalesce_usecs = 0; | |
639 | ecmd->tx_coalesce_usecs = 0; | |
640 | ||
641 | if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) { | |
642 | u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI)); | |
643 | u32 msk = skge_read32(hw, B2_IRQM_MSK); | |
644 | ||
645 | if (msk & rxirqmask[port]) | |
646 | ecmd->rx_coalesce_usecs = delay; | |
647 | if (msk & txirqmask[port]) | |
648 | ecmd->tx_coalesce_usecs = delay; | |
649 | } | |
650 | ||
651 | return 0; | |
652 | } | |
653 | ||
654 | /* Note: interrupt timer is per board, but can turn on/off per port */ | |
655 | static int skge_set_coalesce(struct net_device *dev, | |
656 | struct ethtool_coalesce *ecmd) | |
657 | { | |
658 | struct skge_port *skge = netdev_priv(dev); | |
659 | struct skge_hw *hw = skge->hw; | |
660 | int port = skge->port; | |
661 | u32 msk = skge_read32(hw, B2_IRQM_MSK); | |
662 | u32 delay = 25; | |
663 | ||
664 | if (ecmd->rx_coalesce_usecs == 0) | |
665 | msk &= ~rxirqmask[port]; | |
666 | else if (ecmd->rx_coalesce_usecs < 25 || | |
667 | ecmd->rx_coalesce_usecs > 33333) | |
668 | return -EINVAL; | |
669 | else { | |
670 | msk |= rxirqmask[port]; | |
671 | delay = ecmd->rx_coalesce_usecs; | |
672 | } | |
673 | ||
674 | if (ecmd->tx_coalesce_usecs == 0) | |
675 | msk &= ~txirqmask[port]; | |
676 | else if (ecmd->tx_coalesce_usecs < 25 || | |
677 | ecmd->tx_coalesce_usecs > 33333) | |
678 | return -EINVAL; | |
679 | else { | |
680 | msk |= txirqmask[port]; | |
681 | delay = min(delay, ecmd->rx_coalesce_usecs); | |
682 | } | |
683 | ||
684 | skge_write32(hw, B2_IRQM_MSK, msk); | |
685 | if (msk == 0) | |
686 | skge_write32(hw, B2_IRQM_CTRL, TIM_STOP); | |
687 | else { | |
688 | skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay)); | |
689 | skge_write32(hw, B2_IRQM_CTRL, TIM_START); | |
690 | } | |
691 | return 0; | |
692 | } | |
693 | ||
6abebb53 SH |
694 | enum led_mode { LED_MODE_OFF, LED_MODE_ON, LED_MODE_TST }; |
695 | static void skge_led(struct skge_port *skge, enum led_mode mode) | |
baef58b1 | 696 | { |
6abebb53 SH |
697 | struct skge_hw *hw = skge->hw; |
698 | int port = skge->port; | |
699 | ||
9cbe330f | 700 | spin_lock_bh(&hw->phy_lock); |
baef58b1 | 701 | if (hw->chip_id == CHIP_ID_GENESIS) { |
6abebb53 SH |
702 | switch (mode) { |
703 | case LED_MODE_OFF: | |
64f6b64d SH |
704 | if (hw->phy_type == SK_PHY_BCOM) |
705 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF); | |
706 | else { | |
707 | skge_write32(hw, SK_REG(port, TX_LED_VAL), 0); | |
708 | skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_T_OFF); | |
709 | } | |
6abebb53 SH |
710 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); |
711 | skge_write32(hw, SK_REG(port, RX_LED_VAL), 0); | |
712 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF); | |
713 | break; | |
baef58b1 | 714 | |
6abebb53 SH |
715 | case LED_MODE_ON: |
716 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON); | |
717 | skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON); | |
baef58b1 | 718 | |
6abebb53 SH |
719 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); |
720 | skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START); | |
baef58b1 | 721 | |
6abebb53 | 722 | break; |
baef58b1 | 723 | |
6abebb53 SH |
724 | case LED_MODE_TST: |
725 | skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON); | |
726 | skge_write32(hw, SK_REG(port, RX_LED_VAL), 100); | |
727 | skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); | |
baef58b1 | 728 | |
64f6b64d SH |
729 | if (hw->phy_type == SK_PHY_BCOM) |
730 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON); | |
731 | else { | |
732 | skge_write8(hw, SK_REG(port, TX_LED_TST), LED_T_ON); | |
733 | skge_write32(hw, SK_REG(port, TX_LED_VAL), 100); | |
734 | skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START); | |
735 | } | |
736 | ||
6abebb53 | 737 | } |
baef58b1 | 738 | } else { |
6abebb53 SH |
739 | switch (mode) { |
740 | case LED_MODE_OFF: | |
741 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); | |
742 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, | |
743 | PHY_M_LED_MO_DUP(MO_LED_OFF) | | |
744 | PHY_M_LED_MO_10(MO_LED_OFF) | | |
745 | PHY_M_LED_MO_100(MO_LED_OFF) | | |
746 | PHY_M_LED_MO_1000(MO_LED_OFF) | | |
747 | PHY_M_LED_MO_RX(MO_LED_OFF)); | |
748 | break; | |
749 | case LED_MODE_ON: | |
750 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, | |
751 | PHY_M_LED_PULS_DUR(PULS_170MS) | | |
752 | PHY_M_LED_BLINK_RT(BLINK_84MS) | | |
753 | PHY_M_LEDC_TX_CTRL | | |
754 | PHY_M_LEDC_DP_CTRL); | |
46a60f2d | 755 | |
6abebb53 SH |
756 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, |
757 | PHY_M_LED_MO_RX(MO_LED_OFF) | | |
758 | (skge->speed == SPEED_100 ? | |
759 | PHY_M_LED_MO_100(MO_LED_ON) : 0)); | |
760 | break; | |
761 | case LED_MODE_TST: | |
762 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); | |
763 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, | |
764 | PHY_M_LED_MO_DUP(MO_LED_ON) | | |
765 | PHY_M_LED_MO_10(MO_LED_ON) | | |
766 | PHY_M_LED_MO_100(MO_LED_ON) | | |
767 | PHY_M_LED_MO_1000(MO_LED_ON) | | |
768 | PHY_M_LED_MO_RX(MO_LED_ON)); | |
769 | } | |
baef58b1 | 770 | } |
9cbe330f | 771 | spin_unlock_bh(&hw->phy_lock); |
baef58b1 SH |
772 | } |
773 | ||
774 | /* blink LED's for finding board */ | |
775 | static int skge_phys_id(struct net_device *dev, u32 data) | |
776 | { | |
777 | struct skge_port *skge = netdev_priv(dev); | |
6abebb53 SH |
778 | unsigned long ms; |
779 | enum led_mode mode = LED_MODE_TST; | |
baef58b1 | 780 | |
95566065 | 781 | if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ)) |
6abebb53 SH |
782 | ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT / HZ) * 1000; |
783 | else | |
784 | ms = data * 1000; | |
baef58b1 | 785 | |
6abebb53 SH |
786 | while (ms > 0) { |
787 | skge_led(skge, mode); | |
788 | mode ^= LED_MODE_TST; | |
baef58b1 | 789 | |
6abebb53 SH |
790 | if (msleep_interruptible(BLINK_MS)) |
791 | break; | |
792 | ms -= BLINK_MS; | |
793 | } | |
baef58b1 | 794 | |
6abebb53 SH |
795 | /* back to regular LED state */ |
796 | skge_led(skge, netif_running(dev) ? LED_MODE_ON : LED_MODE_OFF); | |
baef58b1 SH |
797 | |
798 | return 0; | |
799 | } | |
800 | ||
7282d491 | 801 | static const struct ethtool_ops skge_ethtool_ops = { |
baef58b1 SH |
802 | .get_settings = skge_get_settings, |
803 | .set_settings = skge_set_settings, | |
804 | .get_drvinfo = skge_get_drvinfo, | |
805 | .get_regs_len = skge_get_regs_len, | |
806 | .get_regs = skge_get_regs, | |
807 | .get_wol = skge_get_wol, | |
808 | .set_wol = skge_set_wol, | |
809 | .get_msglevel = skge_get_msglevel, | |
810 | .set_msglevel = skge_set_msglevel, | |
811 | .nway_reset = skge_nway_reset, | |
812 | .get_link = ethtool_op_get_link, | |
813 | .get_ringparam = skge_get_ring_param, | |
814 | .set_ringparam = skge_set_ring_param, | |
815 | .get_pauseparam = skge_get_pauseparam, | |
816 | .set_pauseparam = skge_set_pauseparam, | |
817 | .get_coalesce = skge_get_coalesce, | |
818 | .set_coalesce = skge_set_coalesce, | |
baef58b1 | 819 | .set_sg = skge_set_sg, |
baef58b1 SH |
820 | .set_tx_csum = skge_set_tx_csum, |
821 | .get_rx_csum = skge_get_rx_csum, | |
822 | .set_rx_csum = skge_set_rx_csum, | |
823 | .get_strings = skge_get_strings, | |
824 | .phys_id = skge_phys_id, | |
b9f2c044 | 825 | .get_sset_count = skge_get_sset_count, |
baef58b1 SH |
826 | .get_ethtool_stats = skge_get_ethtool_stats, |
827 | }; | |
828 | ||
829 | /* | |
830 | * Allocate ring elements and chain them together | |
831 | * One-to-one association of board descriptors with ring elements | |
832 | */ | |
c3da1447 | 833 | static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u32 base) |
baef58b1 SH |
834 | { |
835 | struct skge_tx_desc *d; | |
836 | struct skge_element *e; | |
837 | int i; | |
838 | ||
cd861280 | 839 | ring->start = kcalloc(ring->count, sizeof(*e), GFP_KERNEL); |
baef58b1 SH |
840 | if (!ring->start) |
841 | return -ENOMEM; | |
842 | ||
843 | for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) { | |
844 | e->desc = d; | |
845 | if (i == ring->count - 1) { | |
846 | e->next = ring->start; | |
847 | d->next_offset = base; | |
848 | } else { | |
849 | e->next = e + 1; | |
850 | d->next_offset = base + (i+1) * sizeof(*d); | |
851 | } | |
852 | } | |
853 | ring->to_use = ring->to_clean = ring->start; | |
854 | ||
855 | return 0; | |
856 | } | |
857 | ||
19a33d4e SH |
858 | /* Allocate and setup a new buffer for receiving */ |
859 | static void skge_rx_setup(struct skge_port *skge, struct skge_element *e, | |
860 | struct sk_buff *skb, unsigned int bufsize) | |
861 | { | |
862 | struct skge_rx_desc *rd = e->desc; | |
863 | u64 map; | |
baef58b1 SH |
864 | |
865 | map = pci_map_single(skge->hw->pdev, skb->data, bufsize, | |
866 | PCI_DMA_FROMDEVICE); | |
867 | ||
868 | rd->dma_lo = map; | |
869 | rd->dma_hi = map >> 32; | |
870 | e->skb = skb; | |
871 | rd->csum1_start = ETH_HLEN; | |
872 | rd->csum2_start = ETH_HLEN; | |
873 | rd->csum1 = 0; | |
874 | rd->csum2 = 0; | |
875 | ||
876 | wmb(); | |
877 | ||
878 | rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize; | |
879 | pci_unmap_addr_set(e, mapaddr, map); | |
880 | pci_unmap_len_set(e, maplen, bufsize); | |
baef58b1 SH |
881 | } |
882 | ||
19a33d4e SH |
883 | /* Resume receiving using existing skb, |
884 | * Note: DMA address is not changed by chip. | |
885 | * MTU not changed while receiver active. | |
886 | */ | |
5a011447 | 887 | static inline void skge_rx_reuse(struct skge_element *e, unsigned int size) |
19a33d4e SH |
888 | { |
889 | struct skge_rx_desc *rd = e->desc; | |
890 | ||
891 | rd->csum2 = 0; | |
892 | rd->csum2_start = ETH_HLEN; | |
893 | ||
894 | wmb(); | |
895 | ||
896 | rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | size; | |
897 | } | |
898 | ||
899 | ||
900 | /* Free all buffers in receive ring, assumes receiver stopped */ | |
baef58b1 SH |
901 | static void skge_rx_clean(struct skge_port *skge) |
902 | { | |
903 | struct skge_hw *hw = skge->hw; | |
904 | struct skge_ring *ring = &skge->rx_ring; | |
905 | struct skge_element *e; | |
906 | ||
19a33d4e SH |
907 | e = ring->start; |
908 | do { | |
baef58b1 SH |
909 | struct skge_rx_desc *rd = e->desc; |
910 | rd->control = 0; | |
19a33d4e SH |
911 | if (e->skb) { |
912 | pci_unmap_single(hw->pdev, | |
913 | pci_unmap_addr(e, mapaddr), | |
914 | pci_unmap_len(e, maplen), | |
915 | PCI_DMA_FROMDEVICE); | |
916 | dev_kfree_skb(e->skb); | |
917 | e->skb = NULL; | |
918 | } | |
919 | } while ((e = e->next) != ring->start); | |
baef58b1 SH |
920 | } |
921 | ||
19a33d4e | 922 | |
baef58b1 | 923 | /* Allocate buffers for receive ring |
19a33d4e | 924 | * For receive: to_clean is next received frame. |
baef58b1 | 925 | */ |
c54f9765 | 926 | static int skge_rx_fill(struct net_device *dev) |
baef58b1 | 927 | { |
c54f9765 | 928 | struct skge_port *skge = netdev_priv(dev); |
baef58b1 SH |
929 | struct skge_ring *ring = &skge->rx_ring; |
930 | struct skge_element *e; | |
baef58b1 | 931 | |
19a33d4e SH |
932 | e = ring->start; |
933 | do { | |
383181ac | 934 | struct sk_buff *skb; |
baef58b1 | 935 | |
c54f9765 SH |
936 | skb = __netdev_alloc_skb(dev, skge->rx_buf_size + NET_IP_ALIGN, |
937 | GFP_KERNEL); | |
19a33d4e SH |
938 | if (!skb) |
939 | return -ENOMEM; | |
940 | ||
383181ac SH |
941 | skb_reserve(skb, NET_IP_ALIGN); |
942 | skge_rx_setup(skge, e, skb, skge->rx_buf_size); | |
19a33d4e | 943 | } while ( (e = e->next) != ring->start); |
baef58b1 | 944 | |
19a33d4e SH |
945 | ring->to_clean = ring->start; |
946 | return 0; | |
baef58b1 SH |
947 | } |
948 | ||
5d5c8e03 SH |
949 | static const char *skge_pause(enum pause_status status) |
950 | { | |
951 | switch(status) { | |
952 | case FLOW_STAT_NONE: | |
953 | return "none"; | |
954 | case FLOW_STAT_REM_SEND: | |
955 | return "rx only"; | |
956 | case FLOW_STAT_LOC_SEND: | |
957 | return "tx_only"; | |
958 | case FLOW_STAT_SYMMETRIC: /* Both station may send PAUSE */ | |
959 | return "both"; | |
960 | default: | |
961 | return "indeterminated"; | |
962 | } | |
963 | } | |
964 | ||
965 | ||
baef58b1 SH |
966 | static void skge_link_up(struct skge_port *skge) |
967 | { | |
46a60f2d | 968 | skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), |
54cfb5aa SH |
969 | LED_BLK_OFF|LED_SYNC_OFF|LED_ON); |
970 | ||
baef58b1 | 971 | netif_carrier_on(skge->netdev); |
29b4e886 | 972 | netif_wake_queue(skge->netdev); |
baef58b1 | 973 | |
5d5c8e03 | 974 | if (netif_msg_link(skge)) { |
baef58b1 SH |
975 | printk(KERN_INFO PFX |
976 | "%s: Link is up at %d Mbps, %s duplex, flow control %s\n", | |
977 | skge->netdev->name, skge->speed, | |
978 | skge->duplex == DUPLEX_FULL ? "full" : "half", | |
5d5c8e03 SH |
979 | skge_pause(skge->flow_status)); |
980 | } | |
baef58b1 SH |
981 | } |
982 | ||
983 | static void skge_link_down(struct skge_port *skge) | |
984 | { | |
54cfb5aa | 985 | skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF); |
baef58b1 SH |
986 | netif_carrier_off(skge->netdev); |
987 | netif_stop_queue(skge->netdev); | |
988 | ||
989 | if (netif_msg_link(skge)) | |
990 | printk(KERN_INFO PFX "%s: Link is down.\n", skge->netdev->name); | |
991 | } | |
992 | ||
a1bc9b87 SH |
993 | |
994 | static void xm_link_down(struct skge_hw *hw, int port) | |
995 | { | |
996 | struct net_device *dev = hw->dev[port]; | |
997 | struct skge_port *skge = netdev_priv(dev); | |
998 | u16 cmd, msk; | |
999 | ||
1000 | if (hw->phy_type == SK_PHY_XMAC) { | |
1001 | msk = xm_read16(hw, port, XM_IMSK); | |
1002 | msk |= XM_IS_INP_ASS | XM_IS_LIPA_RC | XM_IS_RX_PAGE | XM_IS_AND; | |
1003 | xm_write16(hw, port, XM_IMSK, msk); | |
1004 | } | |
1005 | ||
1006 | cmd = xm_read16(hw, port, XM_MMU_CMD); | |
1007 | cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX); | |
1008 | xm_write16(hw, port, XM_MMU_CMD, cmd); | |
1009 | /* dummy read to ensure writing */ | |
1010 | (void) xm_read16(hw, port, XM_MMU_CMD); | |
1011 | ||
1012 | if (netif_carrier_ok(dev)) | |
1013 | skge_link_down(skge); | |
1014 | } | |
1015 | ||
2cd8e5d3 | 1016 | static int __xm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val) |
baef58b1 SH |
1017 | { |
1018 | int i; | |
baef58b1 | 1019 | |
6b0c1480 | 1020 | xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); |
0781191c | 1021 | *val = xm_read16(hw, port, XM_PHY_DATA); |
baef58b1 | 1022 | |
64f6b64d SH |
1023 | if (hw->phy_type == SK_PHY_XMAC) |
1024 | goto ready; | |
1025 | ||
89bf5f23 | 1026 | for (i = 0; i < PHY_RETRIES; i++) { |
2cd8e5d3 | 1027 | if (xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_RDY) |
89bf5f23 | 1028 | goto ready; |
0781191c | 1029 | udelay(1); |
baef58b1 SH |
1030 | } |
1031 | ||
2cd8e5d3 | 1032 | return -ETIMEDOUT; |
89bf5f23 | 1033 | ready: |
2cd8e5d3 | 1034 | *val = xm_read16(hw, port, XM_PHY_DATA); |
89bf5f23 | 1035 | |
2cd8e5d3 SH |
1036 | return 0; |
1037 | } | |
1038 | ||
1039 | static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg) | |
1040 | { | |
1041 | u16 v = 0; | |
1042 | if (__xm_phy_read(hw, port, reg, &v)) | |
1043 | printk(KERN_WARNING PFX "%s: phy read timed out\n", | |
1044 | hw->dev[port]->name); | |
baef58b1 SH |
1045 | return v; |
1046 | } | |
1047 | ||
2cd8e5d3 | 1048 | static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) |
baef58b1 SH |
1049 | { |
1050 | int i; | |
1051 | ||
6b0c1480 | 1052 | xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); |
baef58b1 | 1053 | for (i = 0; i < PHY_RETRIES; i++) { |
6b0c1480 | 1054 | if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) |
baef58b1 | 1055 | goto ready; |
89bf5f23 | 1056 | udelay(1); |
baef58b1 | 1057 | } |
2cd8e5d3 | 1058 | return -EIO; |
baef58b1 SH |
1059 | |
1060 | ready: | |
6b0c1480 | 1061 | xm_write16(hw, port, XM_PHY_DATA, val); |
0781191c SH |
1062 | for (i = 0; i < PHY_RETRIES; i++) { |
1063 | if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) | |
1064 | return 0; | |
1065 | udelay(1); | |
1066 | } | |
1067 | return -ETIMEDOUT; | |
baef58b1 SH |
1068 | } |
1069 | ||
1070 | static void genesis_init(struct skge_hw *hw) | |
1071 | { | |
1072 | /* set blink source counter */ | |
1073 | skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100); | |
1074 | skge_write8(hw, B2_BSC_CTRL, BSC_START); | |
1075 | ||
1076 | /* configure mac arbiter */ | |
1077 | skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR); | |
1078 | ||
1079 | /* configure mac arbiter timeout values */ | |
1080 | skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53); | |
1081 | skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53); | |
1082 | skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53); | |
1083 | skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53); | |
1084 | ||
1085 | skge_write8(hw, B3_MA_RCINI_RX1, 0); | |
1086 | skge_write8(hw, B3_MA_RCINI_RX2, 0); | |
1087 | skge_write8(hw, B3_MA_RCINI_TX1, 0); | |
1088 | skge_write8(hw, B3_MA_RCINI_TX2, 0); | |
1089 | ||
1090 | /* configure packet arbiter timeout */ | |
1091 | skge_write16(hw, B3_PA_CTRL, PA_RST_CLR); | |
1092 | skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX); | |
1093 | skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX); | |
1094 | skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX); | |
1095 | skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX); | |
1096 | } | |
1097 | ||
1098 | static void genesis_reset(struct skge_hw *hw, int port) | |
1099 | { | |
45bada65 | 1100 | const u8 zero[8] = { 0 }; |
baef58b1 | 1101 | |
46a60f2d SH |
1102 | skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); |
1103 | ||
baef58b1 | 1104 | /* reset the statistics module */ |
6b0c1480 SH |
1105 | xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT); |
1106 | xm_write16(hw, port, XM_IMSK, 0xffff); /* disable XMAC IRQs */ | |
1107 | xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */ | |
1108 | xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */ | |
1109 | xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */ | |
baef58b1 | 1110 | |
89bf5f23 | 1111 | /* disable Broadcom PHY IRQ */ |
64f6b64d SH |
1112 | if (hw->phy_type == SK_PHY_BCOM) |
1113 | xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff); | |
baef58b1 | 1114 | |
45bada65 | 1115 | xm_outhash(hw, port, XM_HSM, zero); |
baef58b1 SH |
1116 | } |
1117 | ||
1118 | ||
45bada65 SH |
1119 | /* Convert mode to MII values */ |
1120 | static const u16 phy_pause_map[] = { | |
1121 | [FLOW_MODE_NONE] = 0, | |
1122 | [FLOW_MODE_LOC_SEND] = PHY_AN_PAUSE_ASYM, | |
1123 | [FLOW_MODE_SYMMETRIC] = PHY_AN_PAUSE_CAP, | |
5d5c8e03 | 1124 | [FLOW_MODE_SYM_OR_REM] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM, |
45bada65 SH |
1125 | }; |
1126 | ||
4b67be99 SH |
1127 | /* special defines for FIBER (88E1011S only) */ |
1128 | static const u16 fiber_pause_map[] = { | |
1129 | [FLOW_MODE_NONE] = PHY_X_P_NO_PAUSE, | |
1130 | [FLOW_MODE_LOC_SEND] = PHY_X_P_ASYM_MD, | |
1131 | [FLOW_MODE_SYMMETRIC] = PHY_X_P_SYM_MD, | |
5d5c8e03 | 1132 | [FLOW_MODE_SYM_OR_REM] = PHY_X_P_BOTH_MD, |
4b67be99 SH |
1133 | }; |
1134 | ||
45bada65 SH |
1135 | |
1136 | /* Check status of Broadcom phy link */ | |
1137 | static void bcom_check_link(struct skge_hw *hw, int port) | |
baef58b1 | 1138 | { |
45bada65 SH |
1139 | struct net_device *dev = hw->dev[port]; |
1140 | struct skge_port *skge = netdev_priv(dev); | |
1141 | u16 status; | |
1142 | ||
1143 | /* read twice because of latch */ | |
1144 | (void) xm_phy_read(hw, port, PHY_BCOM_STAT); | |
1145 | status = xm_phy_read(hw, port, PHY_BCOM_STAT); | |
1146 | ||
45bada65 | 1147 | if ((status & PHY_ST_LSYNC) == 0) { |
a1bc9b87 | 1148 | xm_link_down(hw, port); |
64f6b64d SH |
1149 | return; |
1150 | } | |
45bada65 | 1151 | |
64f6b64d SH |
1152 | if (skge->autoneg == AUTONEG_ENABLE) { |
1153 | u16 lpa, aux; | |
45bada65 | 1154 | |
64f6b64d SH |
1155 | if (!(status & PHY_ST_AN_OVER)) |
1156 | return; | |
45bada65 | 1157 | |
64f6b64d SH |
1158 | lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP); |
1159 | if (lpa & PHY_B_AN_RF) { | |
1160 | printk(KERN_NOTICE PFX "%s: remote fault\n", | |
1161 | dev->name); | |
1162 | return; | |
1163 | } | |
45bada65 | 1164 | |
64f6b64d SH |
1165 | aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT); |
1166 | ||
1167 | /* Check Duplex mismatch */ | |
1168 | switch (aux & PHY_B_AS_AN_RES_MSK) { | |
1169 | case PHY_B_RES_1000FD: | |
1170 | skge->duplex = DUPLEX_FULL; | |
1171 | break; | |
1172 | case PHY_B_RES_1000HD: | |
1173 | skge->duplex = DUPLEX_HALF; | |
1174 | break; | |
1175 | default: | |
1176 | printk(KERN_NOTICE PFX "%s: duplex mismatch\n", | |
1177 | dev->name); | |
1178 | return; | |
45bada65 SH |
1179 | } |
1180 | ||
64f6b64d SH |
1181 | /* We are using IEEE 802.3z/D5.0 Table 37-4 */ |
1182 | switch (aux & PHY_B_AS_PAUSE_MSK) { | |
1183 | case PHY_B_AS_PAUSE_MSK: | |
5d5c8e03 | 1184 | skge->flow_status = FLOW_STAT_SYMMETRIC; |
64f6b64d SH |
1185 | break; |
1186 | case PHY_B_AS_PRR: | |
5d5c8e03 | 1187 | skge->flow_status = FLOW_STAT_REM_SEND; |
64f6b64d SH |
1188 | break; |
1189 | case PHY_B_AS_PRT: | |
5d5c8e03 | 1190 | skge->flow_status = FLOW_STAT_LOC_SEND; |
64f6b64d SH |
1191 | break; |
1192 | default: | |
5d5c8e03 | 1193 | skge->flow_status = FLOW_STAT_NONE; |
64f6b64d SH |
1194 | } |
1195 | skge->speed = SPEED_1000; | |
45bada65 | 1196 | } |
64f6b64d SH |
1197 | |
1198 | if (!netif_carrier_ok(dev)) | |
1199 | genesis_link_up(skge); | |
45bada65 SH |
1200 | } |
1201 | ||
1202 | /* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional | |
1203 | * Phy on for 100 or 10Mbit operation | |
1204 | */ | |
64f6b64d | 1205 | static void bcom_phy_init(struct skge_port *skge) |
45bada65 SH |
1206 | { |
1207 | struct skge_hw *hw = skge->hw; | |
1208 | int port = skge->port; | |
baef58b1 | 1209 | int i; |
45bada65 | 1210 | u16 id1, r, ext, ctl; |
baef58b1 SH |
1211 | |
1212 | /* magic workaround patterns for Broadcom */ | |
1213 | static const struct { | |
1214 | u16 reg; | |
1215 | u16 val; | |
1216 | } A1hack[] = { | |
1217 | { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 }, | |
1218 | { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 }, | |
1219 | { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 }, | |
1220 | { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 }, | |
1221 | }, C0hack[] = { | |
1222 | { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 }, | |
1223 | { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 }, | |
1224 | }; | |
1225 | ||
45bada65 SH |
1226 | /* read Id from external PHY (all have the same address) */ |
1227 | id1 = xm_phy_read(hw, port, PHY_XMAC_ID1); | |
1228 | ||
1229 | /* Optimize MDIO transfer by suppressing preamble. */ | |
1230 | r = xm_read16(hw, port, XM_MMU_CMD); | |
1231 | r |= XM_MMU_NO_PRE; | |
1232 | xm_write16(hw, port, XM_MMU_CMD,r); | |
1233 | ||
2c668514 | 1234 | switch (id1) { |
45bada65 SH |
1235 | case PHY_BCOM_ID1_C0: |
1236 | /* | |
1237 | * Workaround BCOM Errata for the C0 type. | |
1238 | * Write magic patterns to reserved registers. | |
1239 | */ | |
1240 | for (i = 0; i < ARRAY_SIZE(C0hack); i++) | |
1241 | xm_phy_write(hw, port, | |
1242 | C0hack[i].reg, C0hack[i].val); | |
1243 | ||
1244 | break; | |
1245 | case PHY_BCOM_ID1_A1: | |
1246 | /* | |
1247 | * Workaround BCOM Errata for the A1 type. | |
1248 | * Write magic patterns to reserved registers. | |
1249 | */ | |
1250 | for (i = 0; i < ARRAY_SIZE(A1hack); i++) | |
1251 | xm_phy_write(hw, port, | |
1252 | A1hack[i].reg, A1hack[i].val); | |
1253 | break; | |
1254 | } | |
1255 | ||
1256 | /* | |
1257 | * Workaround BCOM Errata (#10523) for all BCom PHYs. | |
1258 | * Disable Power Management after reset. | |
1259 | */ | |
1260 | r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL); | |
1261 | r |= PHY_B_AC_DIS_PM; | |
1262 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r); | |
1263 | ||
1264 | /* Dummy read */ | |
1265 | xm_read16(hw, port, XM_ISRC); | |
1266 | ||
1267 | ext = PHY_B_PEC_EN_LTR; /* enable tx led */ | |
1268 | ctl = PHY_CT_SP1000; /* always 1000mbit */ | |
1269 | ||
1270 | if (skge->autoneg == AUTONEG_ENABLE) { | |
1271 | /* | |
1272 | * Workaround BCOM Errata #1 for the C5 type. | |
1273 | * 1000Base-T Link Acquisition Failure in Slave Mode | |
1274 | * Set Repeater/DTE bit 10 of the 1000Base-T Control Register | |
1275 | */ | |
1276 | u16 adv = PHY_B_1000C_RD; | |
1277 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1278 | adv |= PHY_B_1000C_AHD; | |
1279 | if (skge->advertising & ADVERTISED_1000baseT_Full) | |
1280 | adv |= PHY_B_1000C_AFD; | |
1281 | xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, adv); | |
1282 | ||
1283 | ctl |= PHY_CT_ANE | PHY_CT_RE_CFG; | |
1284 | } else { | |
1285 | if (skge->duplex == DUPLEX_FULL) | |
1286 | ctl |= PHY_CT_DUP_MD; | |
1287 | /* Force to slave */ | |
1288 | xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, PHY_B_1000C_MSE); | |
1289 | } | |
1290 | ||
1291 | /* Set autonegotiation pause parameters */ | |
1292 | xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV, | |
1293 | phy_pause_map[skge->flow_control] | PHY_AN_CSMA); | |
1294 | ||
1295 | /* Handle Jumbo frames */ | |
64f6b64d | 1296 | if (hw->dev[port]->mtu > ETH_DATA_LEN) { |
45bada65 SH |
1297 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, |
1298 | PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK); | |
1299 | ||
1300 | ext |= PHY_B_PEC_HIGH_LA; | |
1301 | ||
1302 | } | |
1303 | ||
1304 | xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ext); | |
1305 | xm_phy_write(hw, port, PHY_BCOM_CTRL, ctl); | |
1306 | ||
8f3f8193 | 1307 | /* Use link status change interrupt */ |
45bada65 | 1308 | xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); |
64f6b64d | 1309 | } |
45bada65 | 1310 | |
64f6b64d SH |
1311 | static void xm_phy_init(struct skge_port *skge) |
1312 | { | |
1313 | struct skge_hw *hw = skge->hw; | |
1314 | int port = skge->port; | |
1315 | u16 ctrl = 0; | |
1316 | ||
1317 | if (skge->autoneg == AUTONEG_ENABLE) { | |
1318 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1319 | ctrl |= PHY_X_AN_HD; | |
1320 | if (skge->advertising & ADVERTISED_1000baseT_Full) | |
1321 | ctrl |= PHY_X_AN_FD; | |
1322 | ||
4b67be99 | 1323 | ctrl |= fiber_pause_map[skge->flow_control]; |
64f6b64d SH |
1324 | |
1325 | xm_phy_write(hw, port, PHY_XMAC_AUNE_ADV, ctrl); | |
1326 | ||
1327 | /* Restart Auto-negotiation */ | |
1328 | ctrl = PHY_CT_ANE | PHY_CT_RE_CFG; | |
1329 | } else { | |
1330 | /* Set DuplexMode in Config register */ | |
1331 | if (skge->duplex == DUPLEX_FULL) | |
1332 | ctrl |= PHY_CT_DUP_MD; | |
1333 | /* | |
1334 | * Do NOT enable Auto-negotiation here. This would hold | |
1335 | * the link down because no IDLEs are transmitted | |
1336 | */ | |
1337 | } | |
1338 | ||
1339 | xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl); | |
1340 | ||
1341 | /* Poll PHY for status changes */ | |
9cbe330f | 1342 | mod_timer(&skge->link_timer, jiffies + LINK_HZ); |
64f6b64d SH |
1343 | } |
1344 | ||
1345 | static void xm_check_link(struct net_device *dev) | |
1346 | { | |
1347 | struct skge_port *skge = netdev_priv(dev); | |
1348 | struct skge_hw *hw = skge->hw; | |
1349 | int port = skge->port; | |
1350 | u16 status; | |
1351 | ||
1352 | /* read twice because of latch */ | |
1353 | (void) xm_phy_read(hw, port, PHY_XMAC_STAT); | |
1354 | status = xm_phy_read(hw, port, PHY_XMAC_STAT); | |
1355 | ||
1356 | if ((status & PHY_ST_LSYNC) == 0) { | |
a1bc9b87 | 1357 | xm_link_down(hw, port); |
64f6b64d SH |
1358 | return; |
1359 | } | |
1360 | ||
1361 | if (skge->autoneg == AUTONEG_ENABLE) { | |
1362 | u16 lpa, res; | |
1363 | ||
1364 | if (!(status & PHY_ST_AN_OVER)) | |
1365 | return; | |
1366 | ||
1367 | lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP); | |
1368 | if (lpa & PHY_B_AN_RF) { | |
1369 | printk(KERN_NOTICE PFX "%s: remote fault\n", | |
1370 | dev->name); | |
1371 | return; | |
1372 | } | |
1373 | ||
1374 | res = xm_phy_read(hw, port, PHY_XMAC_RES_ABI); | |
1375 | ||
1376 | /* Check Duplex mismatch */ | |
1377 | switch (res & (PHY_X_RS_HD | PHY_X_RS_FD)) { | |
1378 | case PHY_X_RS_FD: | |
1379 | skge->duplex = DUPLEX_FULL; | |
1380 | break; | |
1381 | case PHY_X_RS_HD: | |
1382 | skge->duplex = DUPLEX_HALF; | |
1383 | break; | |
1384 | default: | |
1385 | printk(KERN_NOTICE PFX "%s: duplex mismatch\n", | |
1386 | dev->name); | |
1387 | return; | |
1388 | } | |
1389 | ||
1390 | /* We are using IEEE 802.3z/D5.0 Table 37-4 */ | |
5d5c8e03 SH |
1391 | if ((skge->flow_control == FLOW_MODE_SYMMETRIC || |
1392 | skge->flow_control == FLOW_MODE_SYM_OR_REM) && | |
1393 | (lpa & PHY_X_P_SYM_MD)) | |
1394 | skge->flow_status = FLOW_STAT_SYMMETRIC; | |
1395 | else if (skge->flow_control == FLOW_MODE_SYM_OR_REM && | |
1396 | (lpa & PHY_X_RS_PAUSE) == PHY_X_P_ASYM_MD) | |
1397 | /* Enable PAUSE receive, disable PAUSE transmit */ | |
1398 | skge->flow_status = FLOW_STAT_REM_SEND; | |
1399 | else if (skge->flow_control == FLOW_MODE_LOC_SEND && | |
1400 | (lpa & PHY_X_RS_PAUSE) == PHY_X_P_BOTH_MD) | |
1401 | /* Disable PAUSE receive, enable PAUSE transmit */ | |
1402 | skge->flow_status = FLOW_STAT_LOC_SEND; | |
64f6b64d | 1403 | else |
5d5c8e03 | 1404 | skge->flow_status = FLOW_STAT_NONE; |
64f6b64d SH |
1405 | |
1406 | skge->speed = SPEED_1000; | |
1407 | } | |
1408 | ||
1409 | if (!netif_carrier_ok(dev)) | |
1410 | genesis_link_up(skge); | |
1411 | } | |
1412 | ||
1413 | /* Poll to check for link coming up. | |
1414 | * Since internal PHY is wired to a level triggered pin, can't | |
1415 | * get an interrupt when carrier is detected. | |
1416 | */ | |
9cbe330f | 1417 | static void xm_link_timer(unsigned long arg) |
64f6b64d | 1418 | { |
9cbe330f | 1419 | struct skge_port *skge = (struct skge_port *) arg; |
c4028958 | 1420 | struct net_device *dev = skge->netdev; |
64f6b64d SH |
1421 | struct skge_hw *hw = skge->hw; |
1422 | int port = skge->port; | |
1423 | ||
1424 | if (!netif_running(dev)) | |
1425 | return; | |
1426 | ||
1427 | if (netif_carrier_ok(dev)) { | |
1428 | xm_read16(hw, port, XM_ISRC); | |
1429 | if (!(xm_read16(hw, port, XM_ISRC) & XM_IS_INP_ASS)) | |
1430 | goto nochange; | |
1431 | } else { | |
1432 | if (xm_read32(hw, port, XM_GP_PORT) & XM_GP_INP_ASS) | |
1433 | goto nochange; | |
1434 | xm_read16(hw, port, XM_ISRC); | |
1435 | if (xm_read16(hw, port, XM_ISRC) & XM_IS_INP_ASS) | |
1436 | goto nochange; | |
1437 | } | |
1438 | ||
9cbe330f | 1439 | spin_lock(&hw->phy_lock); |
64f6b64d | 1440 | xm_check_link(dev); |
9cbe330f | 1441 | spin_unlock(&hw->phy_lock); |
64f6b64d SH |
1442 | |
1443 | nochange: | |
208491d8 | 1444 | if (netif_running(dev)) |
9cbe330f | 1445 | mod_timer(&skge->link_timer, jiffies + LINK_HZ); |
45bada65 SH |
1446 | } |
1447 | ||
1448 | static void genesis_mac_init(struct skge_hw *hw, int port) | |
1449 | { | |
1450 | struct net_device *dev = hw->dev[port]; | |
1451 | struct skge_port *skge = netdev_priv(dev); | |
1452 | int jumbo = hw->dev[port]->mtu > ETH_DATA_LEN; | |
1453 | int i; | |
1454 | u32 r; | |
1455 | const u8 zero[6] = { 0 }; | |
1456 | ||
0781191c SH |
1457 | for (i = 0; i < 10; i++) { |
1458 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), | |
1459 | MFF_SET_MAC_RST); | |
1460 | if (skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST) | |
1461 | goto reset_ok; | |
1462 | udelay(1); | |
1463 | } | |
baef58b1 | 1464 | |
0781191c SH |
1465 | printk(KERN_WARNING PFX "%s: genesis reset failed\n", dev->name); |
1466 | ||
1467 | reset_ok: | |
baef58b1 | 1468 | /* Unreset the XMAC. */ |
6b0c1480 | 1469 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST); |
baef58b1 SH |
1470 | |
1471 | /* | |
1472 | * Perform additional initialization for external PHYs, | |
1473 | * namely for the 1000baseTX cards that use the XMAC's | |
1474 | * GMII mode. | |
1475 | */ | |
64f6b64d SH |
1476 | if (hw->phy_type != SK_PHY_XMAC) { |
1477 | /* Take external Phy out of reset */ | |
1478 | r = skge_read32(hw, B2_GP_IO); | |
1479 | if (port == 0) | |
1480 | r |= GP_DIR_0|GP_IO_0; | |
1481 | else | |
1482 | r |= GP_DIR_2|GP_IO_2; | |
89bf5f23 | 1483 | |
64f6b64d | 1484 | skge_write32(hw, B2_GP_IO, r); |
0781191c | 1485 | |
64f6b64d SH |
1486 | /* Enable GMII interface */ |
1487 | xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD); | |
1488 | } | |
89bf5f23 | 1489 | |
89bf5f23 | 1490 | |
64f6b64d SH |
1491 | switch(hw->phy_type) { |
1492 | case SK_PHY_XMAC: | |
1493 | xm_phy_init(skge); | |
1494 | break; | |
1495 | case SK_PHY_BCOM: | |
1496 | bcom_phy_init(skge); | |
1497 | bcom_check_link(hw, port); | |
1498 | } | |
89bf5f23 | 1499 | |
45bada65 SH |
1500 | /* Set Station Address */ |
1501 | xm_outaddr(hw, port, XM_SA, dev->dev_addr); | |
89bf5f23 | 1502 | |
45bada65 SH |
1503 | /* We don't use match addresses so clear */ |
1504 | for (i = 1; i < 16; i++) | |
1505 | xm_outaddr(hw, port, XM_EXM(i), zero); | |
1506 | ||
0781191c SH |
1507 | /* Clear MIB counters */ |
1508 | xm_write16(hw, port, XM_STAT_CMD, | |
1509 | XM_SC_CLR_RXC | XM_SC_CLR_TXC); | |
1510 | /* Clear two times according to Errata #3 */ | |
1511 | xm_write16(hw, port, XM_STAT_CMD, | |
1512 | XM_SC_CLR_RXC | XM_SC_CLR_TXC); | |
1513 | ||
45bada65 SH |
1514 | /* configure Rx High Water Mark (XM_RX_HI_WM) */ |
1515 | xm_write16(hw, port, XM_RX_HI_WM, 1450); | |
1516 | ||
1517 | /* We don't need the FCS appended to the packet. */ | |
1518 | r = XM_RX_LENERR_OK | XM_RX_STRIP_FCS; | |
1519 | if (jumbo) | |
1520 | r |= XM_RX_BIG_PK_OK; | |
89bf5f23 | 1521 | |
45bada65 | 1522 | if (skge->duplex == DUPLEX_HALF) { |
89bf5f23 | 1523 | /* |
45bada65 SH |
1524 | * If in manual half duplex mode the other side might be in |
1525 | * full duplex mode, so ignore if a carrier extension is not seen | |
1526 | * on frames received | |
89bf5f23 | 1527 | */ |
45bada65 | 1528 | r |= XM_RX_DIS_CEXT; |
baef58b1 | 1529 | } |
45bada65 | 1530 | xm_write16(hw, port, XM_RX_CMD, r); |
baef58b1 | 1531 | |
baef58b1 SH |
1532 | |
1533 | /* We want short frames padded to 60 bytes. */ | |
45bada65 SH |
1534 | xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD); |
1535 | ||
1536 | /* | |
1537 | * Bump up the transmit threshold. This helps hold off transmit | |
1538 | * underruns when we're blasting traffic from both ports at once. | |
1539 | */ | |
1540 | xm_write16(hw, port, XM_TX_THR, 512); | |
baef58b1 SH |
1541 | |
1542 | /* | |
1543 | * Enable the reception of all error frames. This is is | |
1544 | * a necessary evil due to the design of the XMAC. The | |
1545 | * XMAC's receive FIFO is only 8K in size, however jumbo | |
1546 | * frames can be up to 9000 bytes in length. When bad | |
1547 | * frame filtering is enabled, the XMAC's RX FIFO operates | |
1548 | * in 'store and forward' mode. For this to work, the | |
1549 | * entire frame has to fit into the FIFO, but that means | |
1550 | * that jumbo frames larger than 8192 bytes will be | |
1551 | * truncated. Disabling all bad frame filtering causes | |
1552 | * the RX FIFO to operate in streaming mode, in which | |
8f3f8193 | 1553 | * case the XMAC will start transferring frames out of the |
baef58b1 SH |
1554 | * RX FIFO as soon as the FIFO threshold is reached. |
1555 | */ | |
45bada65 | 1556 | xm_write32(hw, port, XM_MODE, XM_DEF_MODE); |
baef58b1 | 1557 | |
baef58b1 SH |
1558 | |
1559 | /* | |
45bada65 SH |
1560 | * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK) |
1561 | * - Enable all bits excepting 'Octets Rx OK Low CntOv' | |
1562 | * and 'Octets Rx OK Hi Cnt Ov'. | |
baef58b1 | 1563 | */ |
45bada65 SH |
1564 | xm_write32(hw, port, XM_RX_EV_MSK, XMR_DEF_MSK); |
1565 | ||
1566 | /* | |
1567 | * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK) | |
1568 | * - Enable all bits excepting 'Octets Tx OK Low CntOv' | |
1569 | * and 'Octets Tx OK Hi Cnt Ov'. | |
1570 | */ | |
1571 | xm_write32(hw, port, XM_TX_EV_MSK, XMT_DEF_MSK); | |
baef58b1 SH |
1572 | |
1573 | /* Configure MAC arbiter */ | |
1574 | skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR); | |
1575 | ||
1576 | /* configure timeout values */ | |
1577 | skge_write8(hw, B3_MA_TOINI_RX1, 72); | |
1578 | skge_write8(hw, B3_MA_TOINI_RX2, 72); | |
1579 | skge_write8(hw, B3_MA_TOINI_TX1, 72); | |
1580 | skge_write8(hw, B3_MA_TOINI_TX2, 72); | |
1581 | ||
1582 | skge_write8(hw, B3_MA_RCINI_RX1, 0); | |
1583 | skge_write8(hw, B3_MA_RCINI_RX2, 0); | |
1584 | skge_write8(hw, B3_MA_RCINI_TX1, 0); | |
1585 | skge_write8(hw, B3_MA_RCINI_TX2, 0); | |
1586 | ||
1587 | /* Configure Rx MAC FIFO */ | |
6b0c1480 SH |
1588 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR); |
1589 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT); | |
1590 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD); | |
baef58b1 SH |
1591 | |
1592 | /* Configure Tx MAC FIFO */ | |
6b0c1480 SH |
1593 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR); |
1594 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF); | |
1595 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD); | |
baef58b1 | 1596 | |
45bada65 | 1597 | if (jumbo) { |
baef58b1 | 1598 | /* Enable frame flushing if jumbo frames used */ |
6b0c1480 | 1599 | skge_write16(hw, SK_REG(port,RX_MFF_CTRL1), MFF_ENA_FLUSH); |
baef58b1 SH |
1600 | } else { |
1601 | /* enable timeout timers if normal frames */ | |
1602 | skge_write16(hw, B3_PA_CTRL, | |
45bada65 | 1603 | (port == 0) ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2); |
baef58b1 | 1604 | } |
baef58b1 SH |
1605 | } |
1606 | ||
1607 | static void genesis_stop(struct skge_port *skge) | |
1608 | { | |
1609 | struct skge_hw *hw = skge->hw; | |
1610 | int port = skge->port; | |
89bf5f23 | 1611 | u32 reg; |
baef58b1 | 1612 | |
46a60f2d SH |
1613 | genesis_reset(hw, port); |
1614 | ||
baef58b1 SH |
1615 | /* Clear Tx packet arbiter timeout IRQ */ |
1616 | skge_write16(hw, B3_PA_CTRL, | |
1617 | port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2); | |
1618 | ||
1619 | /* | |
8f3f8193 | 1620 | * If the transfer sticks at the MAC the STOP command will not |
baef58b1 SH |
1621 | * terminate if we don't flush the XMAC's transmit FIFO ! |
1622 | */ | |
6b0c1480 SH |
1623 | xm_write32(hw, port, XM_MODE, |
1624 | xm_read32(hw, port, XM_MODE)|XM_MD_FTF); | |
baef58b1 SH |
1625 | |
1626 | ||
1627 | /* Reset the MAC */ | |
6b0c1480 | 1628 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST); |
baef58b1 SH |
1629 | |
1630 | /* For external PHYs there must be special handling */ | |
64f6b64d SH |
1631 | if (hw->phy_type != SK_PHY_XMAC) { |
1632 | reg = skge_read32(hw, B2_GP_IO); | |
1633 | if (port == 0) { | |
1634 | reg |= GP_DIR_0; | |
1635 | reg &= ~GP_IO_0; | |
1636 | } else { | |
1637 | reg |= GP_DIR_2; | |
1638 | reg &= ~GP_IO_2; | |
1639 | } | |
1640 | skge_write32(hw, B2_GP_IO, reg); | |
1641 | skge_read32(hw, B2_GP_IO); | |
baef58b1 SH |
1642 | } |
1643 | ||
6b0c1480 SH |
1644 | xm_write16(hw, port, XM_MMU_CMD, |
1645 | xm_read16(hw, port, XM_MMU_CMD) | |
baef58b1 SH |
1646 | & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX)); |
1647 | ||
6b0c1480 | 1648 | xm_read16(hw, port, XM_MMU_CMD); |
baef58b1 SH |
1649 | } |
1650 | ||
1651 | ||
1652 | static void genesis_get_stats(struct skge_port *skge, u64 *data) | |
1653 | { | |
1654 | struct skge_hw *hw = skge->hw; | |
1655 | int port = skge->port; | |
1656 | int i; | |
1657 | unsigned long timeout = jiffies + HZ; | |
1658 | ||
6b0c1480 | 1659 | xm_write16(hw, port, |
baef58b1 SH |
1660 | XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC); |
1661 | ||
1662 | /* wait for update to complete */ | |
6b0c1480 | 1663 | while (xm_read16(hw, port, XM_STAT_CMD) |
baef58b1 SH |
1664 | & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) { |
1665 | if (time_after(jiffies, timeout)) | |
1666 | break; | |
1667 | udelay(10); | |
1668 | } | |
1669 | ||
1670 | /* special case for 64 bit octet counter */ | |
6b0c1480 SH |
1671 | data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32 |
1672 | | xm_read32(hw, port, XM_TXO_OK_LO); | |
1673 | data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32 | |
1674 | | xm_read32(hw, port, XM_RXO_OK_LO); | |
baef58b1 SH |
1675 | |
1676 | for (i = 2; i < ARRAY_SIZE(skge_stats); i++) | |
6b0c1480 | 1677 | data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset); |
baef58b1 SH |
1678 | } |
1679 | ||
1680 | static void genesis_mac_intr(struct skge_hw *hw, int port) | |
1681 | { | |
1682 | struct skge_port *skge = netdev_priv(hw->dev[port]); | |
6b0c1480 | 1683 | u16 status = xm_read16(hw, port, XM_ISRC); |
baef58b1 | 1684 | |
7e676d91 SH |
1685 | if (netif_msg_intr(skge)) |
1686 | printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n", | |
1687 | skge->netdev->name, status); | |
baef58b1 | 1688 | |
a1bc9b87 SH |
1689 | if (hw->phy_type == SK_PHY_XMAC && |
1690 | (status & (XM_IS_INP_ASS | XM_IS_LIPA_RC))) | |
1691 | xm_link_down(hw, port); | |
1692 | ||
baef58b1 | 1693 | if (status & XM_IS_TXF_UR) { |
6b0c1480 | 1694 | xm_write32(hw, port, XM_MODE, XM_MD_FTF); |
baef58b1 SH |
1695 | ++skge->net_stats.tx_fifo_errors; |
1696 | } | |
1697 | if (status & XM_IS_RXF_OV) { | |
6b0c1480 | 1698 | xm_write32(hw, port, XM_MODE, XM_MD_FRF); |
baef58b1 SH |
1699 | ++skge->net_stats.rx_fifo_errors; |
1700 | } | |
1701 | } | |
1702 | ||
baef58b1 SH |
1703 | static void genesis_link_up(struct skge_port *skge) |
1704 | { | |
1705 | struct skge_hw *hw = skge->hw; | |
1706 | int port = skge->port; | |
a1bc9b87 | 1707 | u16 cmd, msk; |
64f6b64d | 1708 | u32 mode; |
baef58b1 | 1709 | |
6b0c1480 | 1710 | cmd = xm_read16(hw, port, XM_MMU_CMD); |
baef58b1 SH |
1711 | |
1712 | /* | |
1713 | * enabling pause frame reception is required for 1000BT | |
1714 | * because the XMAC is not reset if the link is going down | |
1715 | */ | |
5d5c8e03 SH |
1716 | if (skge->flow_status == FLOW_STAT_NONE || |
1717 | skge->flow_status == FLOW_STAT_LOC_SEND) | |
7e676d91 | 1718 | /* Disable Pause Frame Reception */ |
baef58b1 SH |
1719 | cmd |= XM_MMU_IGN_PF; |
1720 | else | |
1721 | /* Enable Pause Frame Reception */ | |
1722 | cmd &= ~XM_MMU_IGN_PF; | |
1723 | ||
6b0c1480 | 1724 | xm_write16(hw, port, XM_MMU_CMD, cmd); |
baef58b1 | 1725 | |
6b0c1480 | 1726 | mode = xm_read32(hw, port, XM_MODE); |
5d5c8e03 SH |
1727 | if (skge->flow_status== FLOW_STAT_SYMMETRIC || |
1728 | skge->flow_status == FLOW_STAT_LOC_SEND) { | |
baef58b1 SH |
1729 | /* |
1730 | * Configure Pause Frame Generation | |
1731 | * Use internal and external Pause Frame Generation. | |
1732 | * Sending pause frames is edge triggered. | |
1733 | * Send a Pause frame with the maximum pause time if | |
1734 | * internal oder external FIFO full condition occurs. | |
1735 | * Send a zero pause time frame to re-start transmission. | |
1736 | */ | |
1737 | /* XM_PAUSE_DA = '010000C28001' (default) */ | |
1738 | /* XM_MAC_PTIME = 0xffff (maximum) */ | |
1739 | /* remember this value is defined in big endian (!) */ | |
6b0c1480 | 1740 | xm_write16(hw, port, XM_MAC_PTIME, 0xffff); |
baef58b1 SH |
1741 | |
1742 | mode |= XM_PAUSE_MODE; | |
6b0c1480 | 1743 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE); |
baef58b1 SH |
1744 | } else { |
1745 | /* | |
1746 | * disable pause frame generation is required for 1000BT | |
1747 | * because the XMAC is not reset if the link is going down | |
1748 | */ | |
1749 | /* Disable Pause Mode in Mode Register */ | |
1750 | mode &= ~XM_PAUSE_MODE; | |
1751 | ||
6b0c1480 | 1752 | skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE); |
baef58b1 SH |
1753 | } |
1754 | ||
6b0c1480 | 1755 | xm_write32(hw, port, XM_MODE, mode); |
a1bc9b87 SH |
1756 | msk = XM_DEF_MSK; |
1757 | if (hw->phy_type != SK_PHY_XMAC) | |
1758 | msk |= XM_IS_INP_ASS; /* disable GP0 interrupt bit */ | |
1759 | ||
1760 | xm_write16(hw, port, XM_IMSK, msk); | |
6b0c1480 | 1761 | xm_read16(hw, port, XM_ISRC); |
baef58b1 SH |
1762 | |
1763 | /* get MMU Command Reg. */ | |
6b0c1480 | 1764 | cmd = xm_read16(hw, port, XM_MMU_CMD); |
64f6b64d | 1765 | if (hw->phy_type != SK_PHY_XMAC && skge->duplex == DUPLEX_FULL) |
baef58b1 SH |
1766 | cmd |= XM_MMU_GMII_FD; |
1767 | ||
89bf5f23 SH |
1768 | /* |
1769 | * Workaround BCOM Errata (#10523) for all BCom Phys | |
1770 | * Enable Power Management after link up | |
1771 | */ | |
64f6b64d SH |
1772 | if (hw->phy_type == SK_PHY_BCOM) { |
1773 | xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, | |
1774 | xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL) | |
1775 | & ~PHY_B_AC_DIS_PM); | |
1776 | xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); | |
1777 | } | |
baef58b1 SH |
1778 | |
1779 | /* enable Rx/Tx */ | |
6b0c1480 | 1780 | xm_write16(hw, port, XM_MMU_CMD, |
baef58b1 SH |
1781 | cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX); |
1782 | skge_link_up(skge); | |
1783 | } | |
1784 | ||
1785 | ||
45bada65 | 1786 | static inline void bcom_phy_intr(struct skge_port *skge) |
baef58b1 SH |
1787 | { |
1788 | struct skge_hw *hw = skge->hw; | |
1789 | int port = skge->port; | |
45bada65 SH |
1790 | u16 isrc; |
1791 | ||
1792 | isrc = xm_phy_read(hw, port, PHY_BCOM_INT_STAT); | |
7e676d91 SH |
1793 | if (netif_msg_intr(skge)) |
1794 | printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x\n", | |
1795 | skge->netdev->name, isrc); | |
baef58b1 | 1796 | |
45bada65 SH |
1797 | if (isrc & PHY_B_IS_PSE) |
1798 | printk(KERN_ERR PFX "%s: uncorrectable pair swap error\n", | |
1799 | hw->dev[port]->name); | |
baef58b1 SH |
1800 | |
1801 | /* Workaround BCom Errata: | |
1802 | * enable and disable loopback mode if "NO HCD" occurs. | |
1803 | */ | |
45bada65 | 1804 | if (isrc & PHY_B_IS_NO_HDCL) { |
6b0c1480 SH |
1805 | u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL); |
1806 | xm_phy_write(hw, port, PHY_BCOM_CTRL, | |
baef58b1 | 1807 | ctrl | PHY_CT_LOOP); |
6b0c1480 | 1808 | xm_phy_write(hw, port, PHY_BCOM_CTRL, |
baef58b1 SH |
1809 | ctrl & ~PHY_CT_LOOP); |
1810 | } | |
1811 | ||
45bada65 SH |
1812 | if (isrc & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) |
1813 | bcom_check_link(hw, port); | |
baef58b1 | 1814 | |
baef58b1 SH |
1815 | } |
1816 | ||
2cd8e5d3 SH |
1817 | static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) |
1818 | { | |
1819 | int i; | |
1820 | ||
1821 | gma_write16(hw, port, GM_SMI_DATA, val); | |
1822 | gma_write16(hw, port, GM_SMI_CTRL, | |
1823 | GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg)); | |
1824 | for (i = 0; i < PHY_RETRIES; i++) { | |
1825 | udelay(1); | |
1826 | ||
1827 | if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY)) | |
1828 | return 0; | |
1829 | } | |
1830 | ||
1831 | printk(KERN_WARNING PFX "%s: phy write timeout\n", | |
1832 | hw->dev[port]->name); | |
1833 | return -EIO; | |
1834 | } | |
1835 | ||
1836 | static int __gm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val) | |
1837 | { | |
1838 | int i; | |
1839 | ||
1840 | gma_write16(hw, port, GM_SMI_CTRL, | |
1841 | GM_SMI_CT_PHY_AD(hw->phy_addr) | |
1842 | | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD); | |
1843 | ||
1844 | for (i = 0; i < PHY_RETRIES; i++) { | |
1845 | udelay(1); | |
1846 | if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) | |
1847 | goto ready; | |
1848 | } | |
1849 | ||
1850 | return -ETIMEDOUT; | |
1851 | ready: | |
1852 | *val = gma_read16(hw, port, GM_SMI_DATA); | |
1853 | return 0; | |
1854 | } | |
1855 | ||
1856 | static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg) | |
1857 | { | |
1858 | u16 v = 0; | |
1859 | if (__gm_phy_read(hw, port, reg, &v)) | |
1860 | printk(KERN_WARNING PFX "%s: phy read timeout\n", | |
1861 | hw->dev[port]->name); | |
1862 | return v; | |
1863 | } | |
1864 | ||
8f3f8193 | 1865 | /* Marvell Phy Initialization */ |
baef58b1 SH |
1866 | static void yukon_init(struct skge_hw *hw, int port) |
1867 | { | |
1868 | struct skge_port *skge = netdev_priv(hw->dev[port]); | |
1869 | u16 ctrl, ct1000, adv; | |
baef58b1 | 1870 | |
baef58b1 | 1871 | if (skge->autoneg == AUTONEG_ENABLE) { |
6b0c1480 | 1872 | u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL); |
baef58b1 SH |
1873 | |
1874 | ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK | | |
1875 | PHY_M_EC_MAC_S_MSK); | |
1876 | ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ); | |
1877 | ||
c506a509 | 1878 | ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1); |
baef58b1 | 1879 | |
6b0c1480 | 1880 | gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl); |
baef58b1 SH |
1881 | } |
1882 | ||
6b0c1480 | 1883 | ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); |
baef58b1 SH |
1884 | if (skge->autoneg == AUTONEG_DISABLE) |
1885 | ctrl &= ~PHY_CT_ANE; | |
1886 | ||
1887 | ctrl |= PHY_CT_RESET; | |
6b0c1480 | 1888 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); |
baef58b1 SH |
1889 | |
1890 | ctrl = 0; | |
1891 | ct1000 = 0; | |
b18f2091 | 1892 | adv = PHY_AN_CSMA; |
baef58b1 SH |
1893 | |
1894 | if (skge->autoneg == AUTONEG_ENABLE) { | |
5e1705dd | 1895 | if (hw->copper) { |
baef58b1 SH |
1896 | if (skge->advertising & ADVERTISED_1000baseT_Full) |
1897 | ct1000 |= PHY_M_1000C_AFD; | |
1898 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1899 | ct1000 |= PHY_M_1000C_AHD; | |
1900 | if (skge->advertising & ADVERTISED_100baseT_Full) | |
1901 | adv |= PHY_M_AN_100_FD; | |
1902 | if (skge->advertising & ADVERTISED_100baseT_Half) | |
1903 | adv |= PHY_M_AN_100_HD; | |
1904 | if (skge->advertising & ADVERTISED_10baseT_Full) | |
1905 | adv |= PHY_M_AN_10_FD; | |
1906 | if (skge->advertising & ADVERTISED_10baseT_Half) | |
1907 | adv |= PHY_M_AN_10_HD; | |
baef58b1 | 1908 | |
4b67be99 SH |
1909 | /* Set Flow-control capabilities */ |
1910 | adv |= phy_pause_map[skge->flow_control]; | |
1911 | } else { | |
1912 | if (skge->advertising & ADVERTISED_1000baseT_Full) | |
1913 | adv |= PHY_M_AN_1000X_AFD; | |
1914 | if (skge->advertising & ADVERTISED_1000baseT_Half) | |
1915 | adv |= PHY_M_AN_1000X_AHD; | |
1916 | ||
1917 | adv |= fiber_pause_map[skge->flow_control]; | |
1918 | } | |
45bada65 | 1919 | |
baef58b1 SH |
1920 | /* Restart Auto-negotiation */ |
1921 | ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG; | |
1922 | } else { | |
1923 | /* forced speed/duplex settings */ | |
1924 | ct1000 = PHY_M_1000C_MSE; | |
1925 | ||
1926 | if (skge->duplex == DUPLEX_FULL) | |
1927 | ctrl |= PHY_CT_DUP_MD; | |
1928 | ||
1929 | switch (skge->speed) { | |
1930 | case SPEED_1000: | |
1931 | ctrl |= PHY_CT_SP1000; | |
1932 | break; | |
1933 | case SPEED_100: | |
1934 | ctrl |= PHY_CT_SP100; | |
1935 | break; | |
1936 | } | |
1937 | ||
1938 | ctrl |= PHY_CT_RESET; | |
1939 | } | |
1940 | ||
c506a509 | 1941 | gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000); |
baef58b1 | 1942 | |
6b0c1480 SH |
1943 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv); |
1944 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
baef58b1 | 1945 | |
baef58b1 SH |
1946 | /* Enable phy interrupt on autonegotiation complete (or link up) */ |
1947 | if (skge->autoneg == AUTONEG_ENABLE) | |
4cde06ed | 1948 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_MSK); |
baef58b1 | 1949 | else |
4cde06ed | 1950 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK); |
baef58b1 SH |
1951 | } |
1952 | ||
1953 | static void yukon_reset(struct skge_hw *hw, int port) | |
1954 | { | |
6b0c1480 SH |
1955 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */ |
1956 | gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */ | |
1957 | gma_write16(hw, port, GM_MC_ADDR_H2, 0); | |
1958 | gma_write16(hw, port, GM_MC_ADDR_H3, 0); | |
1959 | gma_write16(hw, port, GM_MC_ADDR_H4, 0); | |
baef58b1 | 1960 | |
6b0c1480 SH |
1961 | gma_write16(hw, port, GM_RX_CTRL, |
1962 | gma_read16(hw, port, GM_RX_CTRL) | |
baef58b1 SH |
1963 | | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); |
1964 | } | |
1965 | ||
c8868611 SH |
1966 | /* Apparently, early versions of Yukon-Lite had wrong chip_id? */ |
1967 | static int is_yukon_lite_a0(struct skge_hw *hw) | |
1968 | { | |
1969 | u32 reg; | |
1970 | int ret; | |
1971 | ||
1972 | if (hw->chip_id != CHIP_ID_YUKON) | |
1973 | return 0; | |
1974 | ||
1975 | reg = skge_read32(hw, B2_FAR); | |
1976 | skge_write8(hw, B2_FAR + 3, 0xff); | |
1977 | ret = (skge_read8(hw, B2_FAR + 3) != 0); | |
1978 | skge_write32(hw, B2_FAR, reg); | |
1979 | return ret; | |
1980 | } | |
1981 | ||
baef58b1 SH |
1982 | static void yukon_mac_init(struct skge_hw *hw, int port) |
1983 | { | |
1984 | struct skge_port *skge = netdev_priv(hw->dev[port]); | |
1985 | int i; | |
1986 | u32 reg; | |
1987 | const u8 *addr = hw->dev[port]->dev_addr; | |
1988 | ||
1989 | /* WA code for COMA mode -- set PHY reset */ | |
1990 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
46a60f2d SH |
1991 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) { |
1992 | reg = skge_read32(hw, B2_GP_IO); | |
1993 | reg |= GP_DIR_9 | GP_IO_9; | |
1994 | skge_write32(hw, B2_GP_IO, reg); | |
1995 | } | |
baef58b1 SH |
1996 | |
1997 | /* hard reset */ | |
6b0c1480 SH |
1998 | skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); |
1999 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); | |
baef58b1 SH |
2000 | |
2001 | /* WA code for COMA mode -- clear PHY reset */ | |
2002 | if (hw->chip_id == CHIP_ID_YUKON_LITE && | |
46a60f2d SH |
2003 | hw->chip_rev >= CHIP_REV_YU_LITE_A3) { |
2004 | reg = skge_read32(hw, B2_GP_IO); | |
2005 | reg |= GP_DIR_9; | |
2006 | reg &= ~GP_IO_9; | |
2007 | skge_write32(hw, B2_GP_IO, reg); | |
2008 | } | |
baef58b1 SH |
2009 | |
2010 | /* Set hardware config mode */ | |
2011 | reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP | | |
2012 | GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE; | |
5e1705dd | 2013 | reg |= hw->copper ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB; |
baef58b1 SH |
2014 | |
2015 | /* Clear GMC reset */ | |
6b0c1480 SH |
2016 | skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET); |
2017 | skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR); | |
2018 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR); | |
564f9abb | 2019 | |
baef58b1 SH |
2020 | if (skge->autoneg == AUTONEG_DISABLE) { |
2021 | reg = GM_GPCR_AU_ALL_DIS; | |
6b0c1480 SH |
2022 | gma_write16(hw, port, GM_GP_CTRL, |
2023 | gma_read16(hw, port, GM_GP_CTRL) | reg); | |
baef58b1 SH |
2024 | |
2025 | switch (skge->speed) { | |
2026 | case SPEED_1000: | |
564f9abb | 2027 | reg &= ~GM_GPCR_SPEED_100; |
baef58b1 | 2028 | reg |= GM_GPCR_SPEED_1000; |
564f9abb | 2029 | break; |
baef58b1 | 2030 | case SPEED_100: |
564f9abb | 2031 | reg &= ~GM_GPCR_SPEED_1000; |
baef58b1 | 2032 | reg |= GM_GPCR_SPEED_100; |
564f9abb SH |
2033 | break; |
2034 | case SPEED_10: | |
2035 | reg &= ~(GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100); | |
2036 | break; | |
baef58b1 SH |
2037 | } |
2038 | ||
2039 | if (skge->duplex == DUPLEX_FULL) | |
2040 | reg |= GM_GPCR_DUP_FULL; | |
2041 | } else | |
2042 | reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL; | |
564f9abb | 2043 | |
baef58b1 SH |
2044 | switch (skge->flow_control) { |
2045 | case FLOW_MODE_NONE: | |
6b0c1480 | 2046 | skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); |
baef58b1 SH |
2047 | reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; |
2048 | break; | |
2049 | case FLOW_MODE_LOC_SEND: | |
2050 | /* disable Rx flow-control */ | |
2051 | reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; | |
5d5c8e03 SH |
2052 | break; |
2053 | case FLOW_MODE_SYMMETRIC: | |
2054 | case FLOW_MODE_SYM_OR_REM: | |
2055 | /* enable Tx & Rx flow-control */ | |
2056 | break; | |
baef58b1 SH |
2057 | } |
2058 | ||
6b0c1480 | 2059 | gma_write16(hw, port, GM_GP_CTRL, reg); |
46a60f2d | 2060 | skge_read16(hw, SK_REG(port, GMAC_IRQ_SRC)); |
baef58b1 | 2061 | |
baef58b1 | 2062 | yukon_init(hw, port); |
baef58b1 SH |
2063 | |
2064 | /* MIB clear */ | |
6b0c1480 SH |
2065 | reg = gma_read16(hw, port, GM_PHY_ADDR); |
2066 | gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR); | |
baef58b1 SH |
2067 | |
2068 | for (i = 0; i < GM_MIB_CNT_SIZE; i++) | |
6b0c1480 SH |
2069 | gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i); |
2070 | gma_write16(hw, port, GM_PHY_ADDR, reg); | |
baef58b1 SH |
2071 | |
2072 | /* transmit control */ | |
6b0c1480 | 2073 | gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF)); |
baef58b1 SH |
2074 | |
2075 | /* receive control reg: unicast + multicast + no FCS */ | |
6b0c1480 | 2076 | gma_write16(hw, port, GM_RX_CTRL, |
baef58b1 SH |
2077 | GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA); |
2078 | ||
2079 | /* transmit flow control */ | |
6b0c1480 | 2080 | gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff); |
baef58b1 SH |
2081 | |
2082 | /* transmit parameter */ | |
6b0c1480 | 2083 | gma_write16(hw, port, GM_TX_PARAM, |
baef58b1 SH |
2084 | TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) | |
2085 | TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) | | |
2086 | TX_IPG_JAM_DATA(TX_IPG_JAM_DEF)); | |
2087 | ||
2088 | /* serial mode register */ | |
2089 | reg = GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); | |
2090 | if (hw->dev[port]->mtu > 1500) | |
2091 | reg |= GM_SMOD_JUMBO_ENA; | |
2092 | ||
6b0c1480 | 2093 | gma_write16(hw, port, GM_SERIAL_MODE, reg); |
baef58b1 SH |
2094 | |
2095 | /* physical address: used for pause frames */ | |
6b0c1480 | 2096 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr); |
baef58b1 | 2097 | /* virtual address for data */ |
6b0c1480 | 2098 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr); |
baef58b1 SH |
2099 | |
2100 | /* enable interrupt mask for counter overflows */ | |
6b0c1480 SH |
2101 | gma_write16(hw, port, GM_TX_IRQ_MSK, 0); |
2102 | gma_write16(hw, port, GM_RX_IRQ_MSK, 0); | |
2103 | gma_write16(hw, port, GM_TR_IRQ_MSK, 0); | |
baef58b1 SH |
2104 | |
2105 | /* Initialize Mac Fifo */ | |
2106 | ||
2107 | /* Configure Rx MAC FIFO */ | |
6b0c1480 | 2108 | skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK); |
baef58b1 | 2109 | reg = GMF_OPER_ON | GMF_RX_F_FL_ON; |
c8868611 SH |
2110 | |
2111 | /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */ | |
2112 | if (is_yukon_lite_a0(hw)) | |
baef58b1 | 2113 | reg &= ~GMF_RX_F_FL_ON; |
c8868611 | 2114 | |
6b0c1480 SH |
2115 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR); |
2116 | skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg); | |
c5923081 SH |
2117 | /* |
2118 | * because Pause Packet Truncation in GMAC is not working | |
2119 | * we have to increase the Flush Threshold to 64 bytes | |
2120 | * in order to flush pause packets in Rx FIFO on Yukon-1 | |
2121 | */ | |
2122 | skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1); | |
baef58b1 SH |
2123 | |
2124 | /* Configure Tx MAC FIFO */ | |
6b0c1480 SH |
2125 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR); |
2126 | skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON); | |
baef58b1 SH |
2127 | } |
2128 | ||
355ec572 SH |
2129 | /* Go into power down mode */ |
2130 | static void yukon_suspend(struct skge_hw *hw, int port) | |
2131 | { | |
2132 | u16 ctrl; | |
2133 | ||
2134 | ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
2135 | ctrl |= PHY_M_PC_POL_R_DIS; | |
2136 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); | |
2137 | ||
2138 | ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); | |
2139 | ctrl |= PHY_CT_RESET; | |
2140 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
2141 | ||
2142 | /* switch IEEE compatible power down mode on */ | |
2143 | ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); | |
2144 | ctrl |= PHY_CT_PDOWN; | |
2145 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
2146 | } | |
2147 | ||
baef58b1 SH |
2148 | static void yukon_stop(struct skge_port *skge) |
2149 | { | |
2150 | struct skge_hw *hw = skge->hw; | |
2151 | int port = skge->port; | |
2152 | ||
46a60f2d SH |
2153 | skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); |
2154 | yukon_reset(hw, port); | |
baef58b1 | 2155 | |
6b0c1480 SH |
2156 | gma_write16(hw, port, GM_GP_CTRL, |
2157 | gma_read16(hw, port, GM_GP_CTRL) | |
0eedf4ac | 2158 | & ~(GM_GPCR_TX_ENA|GM_GPCR_RX_ENA)); |
6b0c1480 | 2159 | gma_read16(hw, port, GM_GP_CTRL); |
baef58b1 | 2160 | |
355ec572 | 2161 | yukon_suspend(hw, port); |
46a60f2d | 2162 | |
baef58b1 | 2163 | /* set GPHY Control reset */ |
46a60f2d SH |
2164 | skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); |
2165 | skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); | |
baef58b1 SH |
2166 | } |
2167 | ||
2168 | static void yukon_get_stats(struct skge_port *skge, u64 *data) | |
2169 | { | |
2170 | struct skge_hw *hw = skge->hw; | |
2171 | int port = skge->port; | |
2172 | int i; | |
2173 | ||
6b0c1480 SH |
2174 | data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32 |
2175 | | gma_read32(hw, port, GM_TXO_OK_LO); | |
2176 | data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32 | |
2177 | | gma_read32(hw, port, GM_RXO_OK_LO); | |
baef58b1 SH |
2178 | |
2179 | for (i = 2; i < ARRAY_SIZE(skge_stats); i++) | |
6b0c1480 | 2180 | data[i] = gma_read32(hw, port, |
baef58b1 SH |
2181 | skge_stats[i].gma_offset); |
2182 | } | |
2183 | ||
2184 | static void yukon_mac_intr(struct skge_hw *hw, int port) | |
2185 | { | |
7e676d91 SH |
2186 | struct net_device *dev = hw->dev[port]; |
2187 | struct skge_port *skge = netdev_priv(dev); | |
6b0c1480 | 2188 | u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC)); |
baef58b1 | 2189 | |
7e676d91 SH |
2190 | if (netif_msg_intr(skge)) |
2191 | printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n", | |
2192 | dev->name, status); | |
2193 | ||
baef58b1 SH |
2194 | if (status & GM_IS_RX_FF_OR) { |
2195 | ++skge->net_stats.rx_fifo_errors; | |
d8a09943 | 2196 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO); |
baef58b1 | 2197 | } |
d8a09943 | 2198 | |
baef58b1 SH |
2199 | if (status & GM_IS_TX_FF_UR) { |
2200 | ++skge->net_stats.tx_fifo_errors; | |
d8a09943 | 2201 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU); |
baef58b1 SH |
2202 | } |
2203 | ||
2204 | } | |
2205 | ||
2206 | static u16 yukon_speed(const struct skge_hw *hw, u16 aux) | |
2207 | { | |
95566065 | 2208 | switch (aux & PHY_M_PS_SPEED_MSK) { |
baef58b1 SH |
2209 | case PHY_M_PS_SPEED_1000: |
2210 | return SPEED_1000; | |
2211 | case PHY_M_PS_SPEED_100: | |
2212 | return SPEED_100; | |
2213 | default: | |
2214 | return SPEED_10; | |
2215 | } | |
2216 | } | |
2217 | ||
2218 | static void yukon_link_up(struct skge_port *skge) | |
2219 | { | |
2220 | struct skge_hw *hw = skge->hw; | |
2221 | int port = skge->port; | |
2222 | u16 reg; | |
2223 | ||
baef58b1 | 2224 | /* Enable Transmit FIFO Underrun */ |
46a60f2d | 2225 | skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK); |
baef58b1 | 2226 | |
6b0c1480 | 2227 | reg = gma_read16(hw, port, GM_GP_CTRL); |
baef58b1 SH |
2228 | if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE) |
2229 | reg |= GM_GPCR_DUP_FULL; | |
2230 | ||
2231 | /* enable Rx/Tx */ | |
2232 | reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; | |
6b0c1480 | 2233 | gma_write16(hw, port, GM_GP_CTRL, reg); |
baef58b1 | 2234 | |
4cde06ed | 2235 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK); |
baef58b1 SH |
2236 | skge_link_up(skge); |
2237 | } | |
2238 | ||
2239 | static void yukon_link_down(struct skge_port *skge) | |
2240 | { | |
2241 | struct skge_hw *hw = skge->hw; | |
2242 | int port = skge->port; | |
d8a09943 | 2243 | u16 ctrl; |
baef58b1 | 2244 | |
d8a09943 SH |
2245 | ctrl = gma_read16(hw, port, GM_GP_CTRL); |
2246 | ctrl &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA); | |
2247 | gma_write16(hw, port, GM_GP_CTRL, ctrl); | |
baef58b1 | 2248 | |
5d5c8e03 SH |
2249 | if (skge->flow_status == FLOW_STAT_REM_SEND) { |
2250 | ctrl = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV); | |
2251 | ctrl |= PHY_M_AN_ASP; | |
baef58b1 | 2252 | /* restore Asymmetric Pause bit */ |
5d5c8e03 | 2253 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, ctrl); |
baef58b1 SH |
2254 | } |
2255 | ||
baef58b1 SH |
2256 | skge_link_down(skge); |
2257 | ||
2258 | yukon_init(hw, port); | |
2259 | } | |
2260 | ||
2261 | static void yukon_phy_intr(struct skge_port *skge) | |
2262 | { | |
2263 | struct skge_hw *hw = skge->hw; | |
2264 | int port = skge->port; | |
2265 | const char *reason = NULL; | |
2266 | u16 istatus, phystat; | |
2267 | ||
6b0c1480 SH |
2268 | istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT); |
2269 | phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT); | |
7e676d91 SH |
2270 | |
2271 | if (netif_msg_intr(skge)) | |
2272 | printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x 0x%x\n", | |
2273 | skge->netdev->name, istatus, phystat); | |
baef58b1 SH |
2274 | |
2275 | if (istatus & PHY_M_IS_AN_COMPL) { | |
6b0c1480 | 2276 | if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP) |
baef58b1 SH |
2277 | & PHY_M_AN_RF) { |
2278 | reason = "remote fault"; | |
2279 | goto failed; | |
2280 | } | |
2281 | ||
c506a509 | 2282 | if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) { |
baef58b1 SH |
2283 | reason = "master/slave fault"; |
2284 | goto failed; | |
2285 | } | |
2286 | ||
2287 | if (!(phystat & PHY_M_PS_SPDUP_RES)) { | |
2288 | reason = "speed/duplex"; | |
2289 | goto failed; | |
2290 | } | |
2291 | ||
2292 | skge->duplex = (phystat & PHY_M_PS_FULL_DUP) | |
2293 | ? DUPLEX_FULL : DUPLEX_HALF; | |
2294 | skge->speed = yukon_speed(hw, phystat); | |
2295 | ||
baef58b1 SH |
2296 | /* We are using IEEE 802.3z/D5.0 Table 37-4 */ |
2297 | switch (phystat & PHY_M_PS_PAUSE_MSK) { | |
2298 | case PHY_M_PS_PAUSE_MSK: | |
5d5c8e03 | 2299 | skge->flow_status = FLOW_STAT_SYMMETRIC; |
baef58b1 SH |
2300 | break; |
2301 | case PHY_M_PS_RX_P_EN: | |
5d5c8e03 | 2302 | skge->flow_status = FLOW_STAT_REM_SEND; |
baef58b1 SH |
2303 | break; |
2304 | case PHY_M_PS_TX_P_EN: | |
5d5c8e03 | 2305 | skge->flow_status = FLOW_STAT_LOC_SEND; |
baef58b1 SH |
2306 | break; |
2307 | default: | |
5d5c8e03 | 2308 | skge->flow_status = FLOW_STAT_NONE; |
baef58b1 SH |
2309 | } |
2310 | ||
5d5c8e03 | 2311 | if (skge->flow_status == FLOW_STAT_NONE || |
baef58b1 | 2312 | (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF)) |
6b0c1480 | 2313 | skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); |
baef58b1 | 2314 | else |
6b0c1480 | 2315 | skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); |
baef58b1 SH |
2316 | yukon_link_up(skge); |
2317 | return; | |
2318 | } | |
2319 | ||
2320 | if (istatus & PHY_M_IS_LSP_CHANGE) | |
2321 | skge->speed = yukon_speed(hw, phystat); | |
2322 | ||
2323 | if (istatus & PHY_M_IS_DUP_CHANGE) | |
2324 | skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; | |
2325 | if (istatus & PHY_M_IS_LST_CHANGE) { | |
2326 | if (phystat & PHY_M_PS_LINK_UP) | |
2327 | yukon_link_up(skge); | |
2328 | else | |
2329 | yukon_link_down(skge); | |
2330 | } | |
2331 | return; | |
2332 | failed: | |
2333 | printk(KERN_ERR PFX "%s: autonegotiation failed (%s)\n", | |
2334 | skge->netdev->name, reason); | |
2335 | ||
2336 | /* XXX restart autonegotiation? */ | |
2337 | } | |
2338 | ||
ee294dcd SH |
2339 | static void skge_phy_reset(struct skge_port *skge) |
2340 | { | |
2341 | struct skge_hw *hw = skge->hw; | |
2342 | int port = skge->port; | |
aae343d4 | 2343 | struct net_device *dev = hw->dev[port]; |
ee294dcd SH |
2344 | |
2345 | netif_stop_queue(skge->netdev); | |
2346 | netif_carrier_off(skge->netdev); | |
2347 | ||
9cbe330f | 2348 | spin_lock_bh(&hw->phy_lock); |
ee294dcd SH |
2349 | if (hw->chip_id == CHIP_ID_GENESIS) { |
2350 | genesis_reset(hw, port); | |
2351 | genesis_mac_init(hw, port); | |
2352 | } else { | |
2353 | yukon_reset(hw, port); | |
2354 | yukon_init(hw, port); | |
2355 | } | |
9cbe330f | 2356 | spin_unlock_bh(&hw->phy_lock); |
75814090 SH |
2357 | |
2358 | dev->set_multicast_list(dev); | |
ee294dcd SH |
2359 | } |
2360 | ||
2cd8e5d3 SH |
2361 | /* Basic MII support */ |
2362 | static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
2363 | { | |
2364 | struct mii_ioctl_data *data = if_mii(ifr); | |
2365 | struct skge_port *skge = netdev_priv(dev); | |
2366 | struct skge_hw *hw = skge->hw; | |
2367 | int err = -EOPNOTSUPP; | |
2368 | ||
2369 | if (!netif_running(dev)) | |
2370 | return -ENODEV; /* Phy still in reset */ | |
2371 | ||
2372 | switch(cmd) { | |
2373 | case SIOCGMIIPHY: | |
2374 | data->phy_id = hw->phy_addr; | |
2375 | ||
2376 | /* fallthru */ | |
2377 | case SIOCGMIIREG: { | |
2378 | u16 val = 0; | |
9cbe330f | 2379 | spin_lock_bh(&hw->phy_lock); |
2cd8e5d3 SH |
2380 | if (hw->chip_id == CHIP_ID_GENESIS) |
2381 | err = __xm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val); | |
2382 | else | |
2383 | err = __gm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val); | |
9cbe330f | 2384 | spin_unlock_bh(&hw->phy_lock); |
2cd8e5d3 SH |
2385 | data->val_out = val; |
2386 | break; | |
2387 | } | |
2388 | ||
2389 | case SIOCSMIIREG: | |
2390 | if (!capable(CAP_NET_ADMIN)) | |
2391 | return -EPERM; | |
2392 | ||
9cbe330f | 2393 | spin_lock_bh(&hw->phy_lock); |
2cd8e5d3 SH |
2394 | if (hw->chip_id == CHIP_ID_GENESIS) |
2395 | err = xm_phy_write(hw, skge->port, data->reg_num & 0x1f, | |
2396 | data->val_in); | |
2397 | else | |
2398 | err = gm_phy_write(hw, skge->port, data->reg_num & 0x1f, | |
2399 | data->val_in); | |
9cbe330f | 2400 | spin_unlock_bh(&hw->phy_lock); |
2cd8e5d3 SH |
2401 | break; |
2402 | } | |
2403 | return err; | |
2404 | } | |
2405 | ||
baef58b1 SH |
2406 | static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len) |
2407 | { | |
2408 | u32 end; | |
2409 | ||
2410 | start /= 8; | |
2411 | len /= 8; | |
2412 | end = start + len - 1; | |
2413 | ||
2414 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR); | |
2415 | skge_write32(hw, RB_ADDR(q, RB_START), start); | |
2416 | skge_write32(hw, RB_ADDR(q, RB_WP), start); | |
2417 | skge_write32(hw, RB_ADDR(q, RB_RP), start); | |
2418 | skge_write32(hw, RB_ADDR(q, RB_END), end); | |
2419 | ||
2420 | if (q == Q_R1 || q == Q_R2) { | |
2421 | /* Set thresholds on receive queue's */ | |
2422 | skge_write32(hw, RB_ADDR(q, RB_RX_UTPP), | |
2423 | start + (2*len)/3); | |
2424 | skge_write32(hw, RB_ADDR(q, RB_RX_LTPP), | |
2425 | start + (len/3)); | |
2426 | } else { | |
2427 | /* Enable store & forward on Tx queue's because | |
2428 | * Tx FIFO is only 4K on Genesis and 1K on Yukon | |
2429 | */ | |
2430 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD); | |
2431 | } | |
2432 | ||
2433 | skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD); | |
2434 | } | |
2435 | ||
2436 | /* Setup Bus Memory Interface */ | |
2437 | static void skge_qset(struct skge_port *skge, u16 q, | |
2438 | const struct skge_element *e) | |
2439 | { | |
2440 | struct skge_hw *hw = skge->hw; | |
2441 | u32 watermark = 0x600; | |
2442 | u64 base = skge->dma + (e->desc - skge->mem); | |
2443 | ||
2444 | /* optimization to reduce window on 32bit/33mhz */ | |
2445 | if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0) | |
2446 | watermark /= 2; | |
2447 | ||
2448 | skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET); | |
2449 | skge_write32(hw, Q_ADDR(q, Q_F), watermark); | |
2450 | skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32)); | |
2451 | skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base); | |
2452 | } | |
2453 | ||
2454 | static int skge_up(struct net_device *dev) | |
2455 | { | |
2456 | struct skge_port *skge = netdev_priv(dev); | |
2457 | struct skge_hw *hw = skge->hw; | |
2458 | int port = skge->port; | |
2459 | u32 chunk, ram_addr; | |
2460 | size_t rx_size, tx_size; | |
2461 | int err; | |
2462 | ||
fae87592 SH |
2463 | if (!is_valid_ether_addr(dev->dev_addr)) |
2464 | return -EINVAL; | |
2465 | ||
baef58b1 SH |
2466 | if (netif_msg_ifup(skge)) |
2467 | printk(KERN_INFO PFX "%s: enabling interface\n", dev->name); | |
2468 | ||
19a33d4e | 2469 | if (dev->mtu > RX_BUF_SIZE) |
901ccefb | 2470 | skge->rx_buf_size = dev->mtu + ETH_HLEN; |
19a33d4e SH |
2471 | else |
2472 | skge->rx_buf_size = RX_BUF_SIZE; | |
2473 | ||
2474 | ||
baef58b1 SH |
2475 | rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc); |
2476 | tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc); | |
2477 | skge->mem_size = tx_size + rx_size; | |
2478 | skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma); | |
2479 | if (!skge->mem) | |
2480 | return -ENOMEM; | |
2481 | ||
c3da1447 SH |
2482 | BUG_ON(skge->dma & 7); |
2483 | ||
2484 | if ((u64)skge->dma >> 32 != ((u64) skge->dma + skge->mem_size) >> 32) { | |
1479d13c | 2485 | dev_err(&hw->pdev->dev, "pci_alloc_consistent region crosses 4G boundary\n"); |
c3da1447 SH |
2486 | err = -EINVAL; |
2487 | goto free_pci_mem; | |
2488 | } | |
2489 | ||
baef58b1 SH |
2490 | memset(skge->mem, 0, skge->mem_size); |
2491 | ||
203babb6 SH |
2492 | err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma); |
2493 | if (err) | |
baef58b1 SH |
2494 | goto free_pci_mem; |
2495 | ||
c54f9765 | 2496 | err = skge_rx_fill(dev); |
19a33d4e | 2497 | if (err) |
baef58b1 SH |
2498 | goto free_rx_ring; |
2499 | ||
203babb6 SH |
2500 | err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size, |
2501 | skge->dma + rx_size); | |
2502 | if (err) | |
baef58b1 SH |
2503 | goto free_rx_ring; |
2504 | ||
8f3f8193 | 2505 | /* Initialize MAC */ |
9cbe330f | 2506 | spin_lock_bh(&hw->phy_lock); |
baef58b1 SH |
2507 | if (hw->chip_id == CHIP_ID_GENESIS) |
2508 | genesis_mac_init(hw, port); | |
2509 | else | |
2510 | yukon_mac_init(hw, port); | |
9cbe330f | 2511 | spin_unlock_bh(&hw->phy_lock); |
baef58b1 SH |
2512 | |
2513 | /* Configure RAMbuffers */ | |
981d0377 | 2514 | chunk = hw->ram_size / ((hw->ports + 1)*2); |
baef58b1 SH |
2515 | ram_addr = hw->ram_offset + 2 * chunk * port; |
2516 | ||
2517 | skge_ramset(hw, rxqaddr[port], ram_addr, chunk); | |
2518 | skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean); | |
2519 | ||
2520 | BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean); | |
2521 | skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk); | |
2522 | skge_qset(skge, txqaddr[port], skge->tx_ring.to_use); | |
2523 | ||
2524 | /* Start receiver BMU */ | |
2525 | wmb(); | |
2526 | skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F); | |
6abebb53 | 2527 | skge_led(skge, LED_MODE_ON); |
baef58b1 | 2528 | |
4ebabfcb SH |
2529 | spin_lock_irq(&hw->hw_lock); |
2530 | hw->intr_mask |= portmask[port]; | |
2531 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
2532 | spin_unlock_irq(&hw->hw_lock); | |
2533 | ||
bea3348e | 2534 | napi_enable(&skge->napi); |
baef58b1 SH |
2535 | return 0; |
2536 | ||
2537 | free_rx_ring: | |
2538 | skge_rx_clean(skge); | |
2539 | kfree(skge->rx_ring.start); | |
2540 | free_pci_mem: | |
2541 | pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma); | |
7731a4ea | 2542 | skge->mem = NULL; |
baef58b1 SH |
2543 | |
2544 | return err; | |
2545 | } | |
2546 | ||
2547 | static int skge_down(struct net_device *dev) | |
2548 | { | |
2549 | struct skge_port *skge = netdev_priv(dev); | |
2550 | struct skge_hw *hw = skge->hw; | |
2551 | int port = skge->port; | |
2552 | ||
7731a4ea SH |
2553 | if (skge->mem == NULL) |
2554 | return 0; | |
2555 | ||
baef58b1 SH |
2556 | if (netif_msg_ifdown(skge)) |
2557 | printk(KERN_INFO PFX "%s: disabling interface\n", dev->name); | |
2558 | ||
2559 | netif_stop_queue(dev); | |
692412b3 | 2560 | |
64f6b64d | 2561 | if (hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC) |
9cbe330f | 2562 | del_timer_sync(&skge->link_timer); |
baef58b1 | 2563 | |
bea3348e | 2564 | napi_disable(&skge->napi); |
692412b3 | 2565 | netif_carrier_off(dev); |
4ebabfcb SH |
2566 | |
2567 | spin_lock_irq(&hw->hw_lock); | |
2568 | hw->intr_mask &= ~portmask[port]; | |
2569 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
2570 | spin_unlock_irq(&hw->hw_lock); | |
2571 | ||
46a60f2d SH |
2572 | skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF); |
2573 | if (hw->chip_id == CHIP_ID_GENESIS) | |
2574 | genesis_stop(skge); | |
2575 | else | |
2576 | yukon_stop(skge); | |
2577 | ||
baef58b1 SH |
2578 | /* Stop transmitter */ |
2579 | skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP); | |
2580 | skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), | |
2581 | RB_RST_SET|RB_DIS_OP_MD); | |
2582 | ||
baef58b1 SH |
2583 | |
2584 | /* Disable Force Sync bit and Enable Alloc bit */ | |
6b0c1480 | 2585 | skge_write8(hw, SK_REG(port, TXA_CTRL), |
baef58b1 SH |
2586 | TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC); |
2587 | ||
2588 | /* Stop Interval Timer and Limit Counter of Tx Arbiter */ | |
6b0c1480 SH |
2589 | skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L); |
2590 | skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L); | |
baef58b1 SH |
2591 | |
2592 | /* Reset PCI FIFO */ | |
2593 | skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET); | |
2594 | skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET); | |
2595 | ||
2596 | /* Reset the RAM Buffer async Tx queue */ | |
2597 | skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET); | |
2598 | /* stop receiver */ | |
2599 | skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP); | |
2600 | skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL), | |
2601 | RB_RST_SET|RB_DIS_OP_MD); | |
2602 | skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET); | |
2603 | ||
2604 | if (hw->chip_id == CHIP_ID_GENESIS) { | |
6b0c1480 SH |
2605 | skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET); |
2606 | skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET); | |
baef58b1 | 2607 | } else { |
6b0c1480 SH |
2608 | skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); |
2609 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET); | |
baef58b1 SH |
2610 | } |
2611 | ||
6abebb53 | 2612 | skge_led(skge, LED_MODE_OFF); |
baef58b1 | 2613 | |
e3a1b99f | 2614 | netif_tx_lock_bh(dev); |
513f533e | 2615 | skge_tx_clean(dev); |
e3a1b99f SH |
2616 | netif_tx_unlock_bh(dev); |
2617 | ||
baef58b1 SH |
2618 | skge_rx_clean(skge); |
2619 | ||
2620 | kfree(skge->rx_ring.start); | |
2621 | kfree(skge->tx_ring.start); | |
2622 | pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma); | |
7731a4ea | 2623 | skge->mem = NULL; |
baef58b1 SH |
2624 | return 0; |
2625 | } | |
2626 | ||
29b4e886 SH |
2627 | static inline int skge_avail(const struct skge_ring *ring) |
2628 | { | |
992c9623 | 2629 | smp_mb(); |
29b4e886 SH |
2630 | return ((ring->to_clean > ring->to_use) ? 0 : ring->count) |
2631 | + (ring->to_clean - ring->to_use) - 1; | |
2632 | } | |
2633 | ||
baef58b1 SH |
2634 | static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev) |
2635 | { | |
2636 | struct skge_port *skge = netdev_priv(dev); | |
2637 | struct skge_hw *hw = skge->hw; | |
baef58b1 SH |
2638 | struct skge_element *e; |
2639 | struct skge_tx_desc *td; | |
2640 | int i; | |
2641 | u32 control, len; | |
2642 | u64 map; | |
baef58b1 | 2643 | |
5b057c6b | 2644 | if (skb_padto(skb, ETH_ZLEN)) |
baef58b1 SH |
2645 | return NETDEV_TX_OK; |
2646 | ||
513f533e | 2647 | if (unlikely(skge_avail(&skge->tx_ring) < skb_shinfo(skb)->nr_frags + 1)) |
baef58b1 | 2648 | return NETDEV_TX_BUSY; |
baef58b1 | 2649 | |
7c442fa1 | 2650 | e = skge->tx_ring.to_use; |
baef58b1 | 2651 | td = e->desc; |
7c442fa1 | 2652 | BUG_ON(td->control & BMU_OWN); |
baef58b1 SH |
2653 | e->skb = skb; |
2654 | len = skb_headlen(skb); | |
2655 | map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
2656 | pci_unmap_addr_set(e, mapaddr, map); | |
2657 | pci_unmap_len_set(e, maplen, len); | |
2658 | ||
2659 | td->dma_lo = map; | |
2660 | td->dma_hi = map >> 32; | |
2661 | ||
84fa7933 | 2662 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
ea2ae17d | 2663 | const int offset = skb_transport_offset(skb); |
baef58b1 SH |
2664 | |
2665 | /* This seems backwards, but it is what the sk98lin | |
2666 | * does. Looks like hardware is wrong? | |
2667 | */ | |
b0061ce4 | 2668 | if (ipip_hdr(skb)->protocol == IPPROTO_UDP |
981d0377 | 2669 | && hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON) |
baef58b1 SH |
2670 | control = BMU_TCP_CHECK; |
2671 | else | |
2672 | control = BMU_UDP_CHECK; | |
2673 | ||
2674 | td->csum_offs = 0; | |
2675 | td->csum_start = offset; | |
ff1dcadb | 2676 | td->csum_write = offset + skb->csum_offset; |
baef58b1 SH |
2677 | } else |
2678 | control = BMU_CHECK; | |
2679 | ||
2680 | if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */ | |
2681 | control |= BMU_EOF| BMU_IRQ_EOF; | |
2682 | else { | |
2683 | struct skge_tx_desc *tf = td; | |
2684 | ||
2685 | control |= BMU_STFWD; | |
2686 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
2687 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
2688 | ||
2689 | map = pci_map_page(hw->pdev, frag->page, frag->page_offset, | |
2690 | frag->size, PCI_DMA_TODEVICE); | |
2691 | ||
2692 | e = e->next; | |
7c442fa1 | 2693 | e->skb = skb; |
baef58b1 | 2694 | tf = e->desc; |
7c442fa1 SH |
2695 | BUG_ON(tf->control & BMU_OWN); |
2696 | ||
baef58b1 SH |
2697 | tf->dma_lo = map; |
2698 | tf->dma_hi = (u64) map >> 32; | |
2699 | pci_unmap_addr_set(e, mapaddr, map); | |
2700 | pci_unmap_len_set(e, maplen, frag->size); | |
2701 | ||
2702 | tf->control = BMU_OWN | BMU_SW | control | frag->size; | |
2703 | } | |
2704 | tf->control |= BMU_EOF | BMU_IRQ_EOF; | |
2705 | } | |
2706 | /* Make sure all the descriptors written */ | |
2707 | wmb(); | |
2708 | td->control = BMU_OWN | BMU_SW | BMU_STF | control | len; | |
2709 | wmb(); | |
2710 | ||
2711 | skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START); | |
2712 | ||
7c442fa1 | 2713 | if (unlikely(netif_msg_tx_queued(skge))) |
0b2d7fea | 2714 | printk(KERN_DEBUG "%s: tx queued, slot %td, len %d\n", |
7c442fa1 | 2715 | dev->name, e - skge->tx_ring.start, skb->len); |
baef58b1 | 2716 | |
7c442fa1 | 2717 | skge->tx_ring.to_use = e->next; |
992c9623 SH |
2718 | smp_wmb(); |
2719 | ||
9db96479 | 2720 | if (skge_avail(&skge->tx_ring) <= TX_LOW_WATER) { |
baef58b1 SH |
2721 | pr_debug("%s: transmit queue full\n", dev->name); |
2722 | netif_stop_queue(dev); | |
2723 | } | |
2724 | ||
c68ce71a SH |
2725 | dev->trans_start = jiffies; |
2726 | ||
baef58b1 SH |
2727 | return NETDEV_TX_OK; |
2728 | } | |
2729 | ||
7c442fa1 SH |
2730 | |
2731 | /* Free resources associated with this reing element */ | |
2732 | static void skge_tx_free(struct skge_port *skge, struct skge_element *e, | |
2733 | u32 control) | |
866b4f3e SH |
2734 | { |
2735 | struct pci_dev *pdev = skge->hw->pdev; | |
866b4f3e | 2736 | |
7c442fa1 SH |
2737 | /* skb header vs. fragment */ |
2738 | if (control & BMU_STF) | |
866b4f3e | 2739 | pci_unmap_single(pdev, pci_unmap_addr(e, mapaddr), |
7c442fa1 SH |
2740 | pci_unmap_len(e, maplen), |
2741 | PCI_DMA_TODEVICE); | |
2742 | else | |
2743 | pci_unmap_page(pdev, pci_unmap_addr(e, mapaddr), | |
2744 | pci_unmap_len(e, maplen), | |
2745 | PCI_DMA_TODEVICE); | |
866b4f3e | 2746 | |
7c442fa1 SH |
2747 | if (control & BMU_EOF) { |
2748 | if (unlikely(netif_msg_tx_done(skge))) | |
2749 | printk(KERN_DEBUG PFX "%s: tx done slot %td\n", | |
2750 | skge->netdev->name, e - skge->tx_ring.start); | |
866b4f3e | 2751 | |
513f533e | 2752 | dev_kfree_skb(e->skb); |
baef58b1 SH |
2753 | } |
2754 | } | |
2755 | ||
7c442fa1 | 2756 | /* Free all buffers in transmit ring */ |
513f533e | 2757 | static void skge_tx_clean(struct net_device *dev) |
baef58b1 | 2758 | { |
513f533e | 2759 | struct skge_port *skge = netdev_priv(dev); |
7c442fa1 | 2760 | struct skge_element *e; |
baef58b1 | 2761 | |
7c442fa1 SH |
2762 | for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) { |
2763 | struct skge_tx_desc *td = e->desc; | |
2764 | skge_tx_free(skge, e, td->control); | |
2765 | td->control = 0; | |
2766 | } | |
2767 | ||
2768 | skge->tx_ring.to_clean = e; | |
513f533e | 2769 | netif_wake_queue(dev); |
baef58b1 SH |
2770 | } |
2771 | ||
2772 | static void skge_tx_timeout(struct net_device *dev) | |
2773 | { | |
2774 | struct skge_port *skge = netdev_priv(dev); | |
2775 | ||
2776 | if (netif_msg_timer(skge)) | |
2777 | printk(KERN_DEBUG PFX "%s: tx timeout\n", dev->name); | |
2778 | ||
2779 | skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP); | |
513f533e | 2780 | skge_tx_clean(dev); |
baef58b1 SH |
2781 | } |
2782 | ||
2783 | static int skge_change_mtu(struct net_device *dev, int new_mtu) | |
2784 | { | |
7731a4ea | 2785 | int err; |
baef58b1 | 2786 | |
95566065 | 2787 | if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) |
baef58b1 SH |
2788 | return -EINVAL; |
2789 | ||
7731a4ea SH |
2790 | if (!netif_running(dev)) { |
2791 | dev->mtu = new_mtu; | |
2792 | return 0; | |
2793 | } | |
2794 | ||
2795 | skge_down(dev); | |
baef58b1 | 2796 | |
19a33d4e | 2797 | dev->mtu = new_mtu; |
7731a4ea SH |
2798 | |
2799 | err = skge_up(dev); | |
2800 | if (err) | |
2801 | dev_close(dev); | |
baef58b1 SH |
2802 | |
2803 | return err; | |
2804 | } | |
2805 | ||
c4cd29d2 SH |
2806 | static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 }; |
2807 | ||
2808 | static void genesis_add_filter(u8 filter[8], const u8 *addr) | |
2809 | { | |
2810 | u32 crc, bit; | |
2811 | ||
2812 | crc = ether_crc_le(ETH_ALEN, addr); | |
2813 | bit = ~crc & 0x3f; | |
2814 | filter[bit/8] |= 1 << (bit%8); | |
2815 | } | |
2816 | ||
baef58b1 SH |
2817 | static void genesis_set_multicast(struct net_device *dev) |
2818 | { | |
2819 | struct skge_port *skge = netdev_priv(dev); | |
2820 | struct skge_hw *hw = skge->hw; | |
2821 | int port = skge->port; | |
2822 | int i, count = dev->mc_count; | |
2823 | struct dev_mc_list *list = dev->mc_list; | |
2824 | u32 mode; | |
2825 | u8 filter[8]; | |
2826 | ||
6b0c1480 | 2827 | mode = xm_read32(hw, port, XM_MODE); |
baef58b1 SH |
2828 | mode |= XM_MD_ENA_HASH; |
2829 | if (dev->flags & IFF_PROMISC) | |
2830 | mode |= XM_MD_ENA_PROM; | |
2831 | else | |
2832 | mode &= ~XM_MD_ENA_PROM; | |
2833 | ||
2834 | if (dev->flags & IFF_ALLMULTI) | |
2835 | memset(filter, 0xff, sizeof(filter)); | |
2836 | else { | |
2837 | memset(filter, 0, sizeof(filter)); | |
c4cd29d2 SH |
2838 | |
2839 | if (skge->flow_status == FLOW_STAT_REM_SEND | |
2840 | || skge->flow_status == FLOW_STAT_SYMMETRIC) | |
2841 | genesis_add_filter(filter, pause_mc_addr); | |
2842 | ||
2843 | for (i = 0; list && i < count; i++, list = list->next) | |
2844 | genesis_add_filter(filter, list->dmi_addr); | |
baef58b1 SH |
2845 | } |
2846 | ||
6b0c1480 | 2847 | xm_write32(hw, port, XM_MODE, mode); |
45bada65 | 2848 | xm_outhash(hw, port, XM_HSM, filter); |
baef58b1 SH |
2849 | } |
2850 | ||
c4cd29d2 SH |
2851 | static void yukon_add_filter(u8 filter[8], const u8 *addr) |
2852 | { | |
2853 | u32 bit = ether_crc(ETH_ALEN, addr) & 0x3f; | |
2854 | filter[bit/8] |= 1 << (bit%8); | |
2855 | } | |
2856 | ||
baef58b1 SH |
2857 | static void yukon_set_multicast(struct net_device *dev) |
2858 | { | |
2859 | struct skge_port *skge = netdev_priv(dev); | |
2860 | struct skge_hw *hw = skge->hw; | |
2861 | int port = skge->port; | |
2862 | struct dev_mc_list *list = dev->mc_list; | |
c4cd29d2 SH |
2863 | int rx_pause = (skge->flow_status == FLOW_STAT_REM_SEND |
2864 | || skge->flow_status == FLOW_STAT_SYMMETRIC); | |
baef58b1 SH |
2865 | u16 reg; |
2866 | u8 filter[8]; | |
2867 | ||
2868 | memset(filter, 0, sizeof(filter)); | |
2869 | ||
6b0c1480 | 2870 | reg = gma_read16(hw, port, GM_RX_CTRL); |
baef58b1 SH |
2871 | reg |= GM_RXCR_UCF_ENA; |
2872 | ||
8f3f8193 | 2873 | if (dev->flags & IFF_PROMISC) /* promiscuous */ |
baef58b1 SH |
2874 | reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); |
2875 | else if (dev->flags & IFF_ALLMULTI) /* all multicast */ | |
2876 | memset(filter, 0xff, sizeof(filter)); | |
c4cd29d2 | 2877 | else if (dev->mc_count == 0 && !rx_pause)/* no multicast */ |
baef58b1 SH |
2878 | reg &= ~GM_RXCR_MCF_ENA; |
2879 | else { | |
2880 | int i; | |
2881 | reg |= GM_RXCR_MCF_ENA; | |
2882 | ||
c4cd29d2 SH |
2883 | if (rx_pause) |
2884 | yukon_add_filter(filter, pause_mc_addr); | |
2885 | ||
2886 | for (i = 0; list && i < dev->mc_count; i++, list = list->next) | |
2887 | yukon_add_filter(filter, list->dmi_addr); | |
baef58b1 SH |
2888 | } |
2889 | ||
2890 | ||
6b0c1480 | 2891 | gma_write16(hw, port, GM_MC_ADDR_H1, |
baef58b1 | 2892 | (u16)filter[0] | ((u16)filter[1] << 8)); |
6b0c1480 | 2893 | gma_write16(hw, port, GM_MC_ADDR_H2, |
baef58b1 | 2894 | (u16)filter[2] | ((u16)filter[3] << 8)); |
6b0c1480 | 2895 | gma_write16(hw, port, GM_MC_ADDR_H3, |
baef58b1 | 2896 | (u16)filter[4] | ((u16)filter[5] << 8)); |
6b0c1480 | 2897 | gma_write16(hw, port, GM_MC_ADDR_H4, |
baef58b1 SH |
2898 | (u16)filter[6] | ((u16)filter[7] << 8)); |
2899 | ||
6b0c1480 | 2900 | gma_write16(hw, port, GM_RX_CTRL, reg); |
baef58b1 SH |
2901 | } |
2902 | ||
383181ac SH |
2903 | static inline u16 phy_length(const struct skge_hw *hw, u32 status) |
2904 | { | |
2905 | if (hw->chip_id == CHIP_ID_GENESIS) | |
2906 | return status >> XMR_FS_LEN_SHIFT; | |
2907 | else | |
2908 | return status >> GMR_FS_LEN_SHIFT; | |
2909 | } | |
2910 | ||
baef58b1 SH |
2911 | static inline int bad_phy_status(const struct skge_hw *hw, u32 status) |
2912 | { | |
2913 | if (hw->chip_id == CHIP_ID_GENESIS) | |
2914 | return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0; | |
2915 | else | |
2916 | return (status & GMR_FS_ANY_ERR) || | |
2917 | (status & GMR_FS_RX_OK) == 0; | |
2918 | } | |
2919 | ||
19a33d4e SH |
2920 | |
2921 | /* Get receive buffer from descriptor. | |
2922 | * Handles copy of small buffers and reallocation failures | |
2923 | */ | |
c54f9765 SH |
2924 | static struct sk_buff *skge_rx_get(struct net_device *dev, |
2925 | struct skge_element *e, | |
2926 | u32 control, u32 status, u16 csum) | |
19a33d4e | 2927 | { |
c54f9765 | 2928 | struct skge_port *skge = netdev_priv(dev); |
383181ac SH |
2929 | struct sk_buff *skb; |
2930 | u16 len = control & BMU_BBC; | |
2931 | ||
2932 | if (unlikely(netif_msg_rx_status(skge))) | |
2933 | printk(KERN_DEBUG PFX "%s: rx slot %td status 0x%x len %d\n", | |
c54f9765 | 2934 | dev->name, e - skge->rx_ring.start, |
383181ac SH |
2935 | status, len); |
2936 | ||
2937 | if (len > skge->rx_buf_size) | |
2938 | goto error; | |
2939 | ||
2940 | if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF)) | |
2941 | goto error; | |
2942 | ||
2943 | if (bad_phy_status(skge->hw, status)) | |
2944 | goto error; | |
2945 | ||
2946 | if (phy_length(skge->hw, status) != len) | |
2947 | goto error; | |
19a33d4e SH |
2948 | |
2949 | if (len < RX_COPY_THRESHOLD) { | |
c54f9765 | 2950 | skb = netdev_alloc_skb(dev, len + 2); |
383181ac SH |
2951 | if (!skb) |
2952 | goto resubmit; | |
19a33d4e | 2953 | |
383181ac | 2954 | skb_reserve(skb, 2); |
19a33d4e SH |
2955 | pci_dma_sync_single_for_cpu(skge->hw->pdev, |
2956 | pci_unmap_addr(e, mapaddr), | |
2957 | len, PCI_DMA_FROMDEVICE); | |
d626f62b | 2958 | skb_copy_from_linear_data(e->skb, skb->data, len); |
19a33d4e SH |
2959 | pci_dma_sync_single_for_device(skge->hw->pdev, |
2960 | pci_unmap_addr(e, mapaddr), | |
2961 | len, PCI_DMA_FROMDEVICE); | |
19a33d4e | 2962 | skge_rx_reuse(e, skge->rx_buf_size); |
19a33d4e | 2963 | } else { |
383181ac | 2964 | struct sk_buff *nskb; |
c54f9765 | 2965 | nskb = netdev_alloc_skb(dev, skge->rx_buf_size + NET_IP_ALIGN); |
383181ac SH |
2966 | if (!nskb) |
2967 | goto resubmit; | |
19a33d4e | 2968 | |
901ccefb | 2969 | skb_reserve(nskb, NET_IP_ALIGN); |
19a33d4e SH |
2970 | pci_unmap_single(skge->hw->pdev, |
2971 | pci_unmap_addr(e, mapaddr), | |
2972 | pci_unmap_len(e, maplen), | |
2973 | PCI_DMA_FROMDEVICE); | |
2974 | skb = e->skb; | |
383181ac | 2975 | prefetch(skb->data); |
19a33d4e | 2976 | skge_rx_setup(skge, e, nskb, skge->rx_buf_size); |
baef58b1 | 2977 | } |
383181ac SH |
2978 | |
2979 | skb_put(skb, len); | |
383181ac SH |
2980 | if (skge->rx_csum) { |
2981 | skb->csum = csum; | |
84fa7933 | 2982 | skb->ip_summed = CHECKSUM_COMPLETE; |
383181ac SH |
2983 | } |
2984 | ||
c54f9765 | 2985 | skb->protocol = eth_type_trans(skb, dev); |
383181ac SH |
2986 | |
2987 | return skb; | |
2988 | error: | |
2989 | ||
2990 | if (netif_msg_rx_err(skge)) | |
2991 | printk(KERN_DEBUG PFX "%s: rx err, slot %td control 0x%x status 0x%x\n", | |
c54f9765 | 2992 | dev->name, e - skge->rx_ring.start, |
383181ac SH |
2993 | control, status); |
2994 | ||
2995 | if (skge->hw->chip_id == CHIP_ID_GENESIS) { | |
2996 | if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR)) | |
2997 | skge->net_stats.rx_length_errors++; | |
2998 | if (status & XMR_FS_FRA_ERR) | |
2999 | skge->net_stats.rx_frame_errors++; | |
3000 | if (status & XMR_FS_FCS_ERR) | |
3001 | skge->net_stats.rx_crc_errors++; | |
3002 | } else { | |
3003 | if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE)) | |
3004 | skge->net_stats.rx_length_errors++; | |
3005 | if (status & GMR_FS_FRAGMENT) | |
3006 | skge->net_stats.rx_frame_errors++; | |
3007 | if (status & GMR_FS_CRC_ERR) | |
3008 | skge->net_stats.rx_crc_errors++; | |
3009 | } | |
3010 | ||
3011 | resubmit: | |
3012 | skge_rx_reuse(e, skge->rx_buf_size); | |
3013 | return NULL; | |
baef58b1 SH |
3014 | } |
3015 | ||
7c442fa1 | 3016 | /* Free all buffers in Tx ring which are no longer owned by device */ |
513f533e | 3017 | static void skge_tx_done(struct net_device *dev) |
00a6cae2 | 3018 | { |
7c442fa1 | 3019 | struct skge_port *skge = netdev_priv(dev); |
00a6cae2 | 3020 | struct skge_ring *ring = &skge->tx_ring; |
7c442fa1 SH |
3021 | struct skge_element *e; |
3022 | ||
513f533e | 3023 | skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F); |
00a6cae2 | 3024 | |
866b4f3e | 3025 | for (e = ring->to_clean; e != ring->to_use; e = e->next) { |
992c9623 | 3026 | u32 control = ((const struct skge_tx_desc *) e->desc)->control; |
00a6cae2 | 3027 | |
992c9623 | 3028 | if (control & BMU_OWN) |
00a6cae2 SH |
3029 | break; |
3030 | ||
992c9623 | 3031 | skge_tx_free(skge, e, control); |
00a6cae2 | 3032 | } |
7c442fa1 | 3033 | skge->tx_ring.to_clean = e; |
866b4f3e | 3034 | |
992c9623 SH |
3035 | /* Can run lockless until we need to synchronize to restart queue. */ |
3036 | smp_mb(); | |
3037 | ||
3038 | if (unlikely(netif_queue_stopped(dev) && | |
3039 | skge_avail(&skge->tx_ring) > TX_LOW_WATER)) { | |
3040 | netif_tx_lock(dev); | |
3041 | if (unlikely(netif_queue_stopped(dev) && | |
3042 | skge_avail(&skge->tx_ring) > TX_LOW_WATER)) { | |
3043 | netif_wake_queue(dev); | |
00a6cae2 | 3044 | |
992c9623 SH |
3045 | } |
3046 | netif_tx_unlock(dev); | |
3047 | } | |
00a6cae2 | 3048 | } |
19a33d4e | 3049 | |
bea3348e | 3050 | static int skge_poll(struct napi_struct *napi, int to_do) |
baef58b1 | 3051 | { |
bea3348e SH |
3052 | struct skge_port *skge = container_of(napi, struct skge_port, napi); |
3053 | struct net_device *dev = skge->netdev; | |
baef58b1 SH |
3054 | struct skge_hw *hw = skge->hw; |
3055 | struct skge_ring *ring = &skge->rx_ring; | |
3056 | struct skge_element *e; | |
00a6cae2 SH |
3057 | int work_done = 0; |
3058 | ||
513f533e SH |
3059 | skge_tx_done(dev); |
3060 | ||
3061 | skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F); | |
3062 | ||
1631aef1 | 3063 | for (e = ring->to_clean; prefetch(e->next), work_done < to_do; e = e->next) { |
baef58b1 | 3064 | struct skge_rx_desc *rd = e->desc; |
19a33d4e | 3065 | struct sk_buff *skb; |
383181ac | 3066 | u32 control; |
baef58b1 SH |
3067 | |
3068 | rmb(); | |
3069 | control = rd->control; | |
3070 | if (control & BMU_OWN) | |
3071 | break; | |
3072 | ||
c54f9765 | 3073 | skb = skge_rx_get(dev, e, control, rd->status, rd->csum2); |
19a33d4e | 3074 | if (likely(skb)) { |
19a33d4e SH |
3075 | dev->last_rx = jiffies; |
3076 | netif_receive_skb(skb); | |
baef58b1 | 3077 | |
19a33d4e | 3078 | ++work_done; |
5a011447 | 3079 | } |
baef58b1 SH |
3080 | } |
3081 | ring->to_clean = e; | |
3082 | ||
baef58b1 SH |
3083 | /* restart receiver */ |
3084 | wmb(); | |
a9cdab86 | 3085 | skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_START); |
baef58b1 | 3086 | |
bea3348e SH |
3087 | if (work_done < to_do) { |
3088 | spin_lock_irq(&hw->hw_lock); | |
3089 | __netif_rx_complete(dev, napi); | |
3090 | hw->intr_mask |= napimask[skge->port]; | |
3091 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
3092 | skge_read32(hw, B0_IMSK); | |
3093 | spin_unlock_irq(&hw->hw_lock); | |
3094 | } | |
1631aef1 | 3095 | |
bea3348e | 3096 | return work_done; |
baef58b1 SH |
3097 | } |
3098 | ||
f6620cab SH |
3099 | /* Parity errors seem to happen when Genesis is connected to a switch |
3100 | * with no other ports present. Heartbeat error?? | |
3101 | */ | |
baef58b1 SH |
3102 | static void skge_mac_parity(struct skge_hw *hw, int port) |
3103 | { | |
f6620cab SH |
3104 | struct net_device *dev = hw->dev[port]; |
3105 | ||
3106 | if (dev) { | |
3107 | struct skge_port *skge = netdev_priv(dev); | |
3108 | ++skge->net_stats.tx_heartbeat_errors; | |
3109 | } | |
baef58b1 SH |
3110 | |
3111 | if (hw->chip_id == CHIP_ID_GENESIS) | |
6b0c1480 | 3112 | skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), |
baef58b1 SH |
3113 | MFF_CLR_PERR); |
3114 | else | |
3115 | /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */ | |
6b0c1480 | 3116 | skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), |
981d0377 | 3117 | (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0) |
baef58b1 SH |
3118 | ? GMF_CLI_TX_FC : GMF_CLI_TX_PE); |
3119 | } | |
3120 | ||
baef58b1 SH |
3121 | static void skge_mac_intr(struct skge_hw *hw, int port) |
3122 | { | |
95566065 | 3123 | if (hw->chip_id == CHIP_ID_GENESIS) |
baef58b1 SH |
3124 | genesis_mac_intr(hw, port); |
3125 | else | |
3126 | yukon_mac_intr(hw, port); | |
3127 | } | |
3128 | ||
3129 | /* Handle device specific framing and timeout interrupts */ | |
3130 | static void skge_error_irq(struct skge_hw *hw) | |
3131 | { | |
1479d13c | 3132 | struct pci_dev *pdev = hw->pdev; |
baef58b1 SH |
3133 | u32 hwstatus = skge_read32(hw, B0_HWE_ISRC); |
3134 | ||
3135 | if (hw->chip_id == CHIP_ID_GENESIS) { | |
3136 | /* clear xmac errors */ | |
3137 | if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1)) | |
46a60f2d | 3138 | skge_write16(hw, RX_MFF_CTRL1, MFF_CLR_INSTAT); |
baef58b1 | 3139 | if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2)) |
46a60f2d | 3140 | skge_write16(hw, RX_MFF_CTRL2, MFF_CLR_INSTAT); |
baef58b1 SH |
3141 | } else { |
3142 | /* Timestamp (unused) overflow */ | |
3143 | if (hwstatus & IS_IRQ_TIST_OV) | |
3144 | skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); | |
baef58b1 SH |
3145 | } |
3146 | ||
3147 | if (hwstatus & IS_RAM_RD_PAR) { | |
1479d13c | 3148 | dev_err(&pdev->dev, "Ram read data parity error\n"); |
baef58b1 SH |
3149 | skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR); |
3150 | } | |
3151 | ||
3152 | if (hwstatus & IS_RAM_WR_PAR) { | |
1479d13c | 3153 | dev_err(&pdev->dev, "Ram write data parity error\n"); |
baef58b1 SH |
3154 | skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR); |
3155 | } | |
3156 | ||
3157 | if (hwstatus & IS_M1_PAR_ERR) | |
3158 | skge_mac_parity(hw, 0); | |
3159 | ||
3160 | if (hwstatus & IS_M2_PAR_ERR) | |
3161 | skge_mac_parity(hw, 1); | |
3162 | ||
b9d64acc | 3163 | if (hwstatus & IS_R1_PAR_ERR) { |
1479d13c SH |
3164 | dev_err(&pdev->dev, "%s: receive queue parity error\n", |
3165 | hw->dev[0]->name); | |
baef58b1 | 3166 | skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P); |
b9d64acc | 3167 | } |
baef58b1 | 3168 | |
b9d64acc | 3169 | if (hwstatus & IS_R2_PAR_ERR) { |
1479d13c SH |
3170 | dev_err(&pdev->dev, "%s: receive queue parity error\n", |
3171 | hw->dev[1]->name); | |
baef58b1 | 3172 | skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P); |
b9d64acc | 3173 | } |
baef58b1 SH |
3174 | |
3175 | if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) { | |
b9d64acc SH |
3176 | u16 pci_status, pci_cmd; |
3177 | ||
1479d13c SH |
3178 | pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd); |
3179 | pci_read_config_word(pdev, PCI_STATUS, &pci_status); | |
baef58b1 | 3180 | |
1479d13c SH |
3181 | dev_err(&pdev->dev, "PCI error cmd=%#x status=%#x\n", |
3182 | pci_cmd, pci_status); | |
b9d64acc SH |
3183 | |
3184 | /* Write the error bits back to clear them. */ | |
3185 | pci_status &= PCI_STATUS_ERROR_BITS; | |
3186 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
1479d13c | 3187 | pci_write_config_word(pdev, PCI_COMMAND, |
b9d64acc | 3188 | pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY); |
1479d13c | 3189 | pci_write_config_word(pdev, PCI_STATUS, pci_status); |
b9d64acc | 3190 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
baef58b1 | 3191 | |
050ec18a | 3192 | /* if error still set then just ignore it */ |
baef58b1 SH |
3193 | hwstatus = skge_read32(hw, B0_HWE_ISRC); |
3194 | if (hwstatus & IS_IRQ_STAT) { | |
1479d13c | 3195 | dev_warn(&hw->pdev->dev, "unable to clear error (so ignoring them)\n"); |
baef58b1 SH |
3196 | hw->intr_mask &= ~IS_HW_ERR; |
3197 | } | |
3198 | } | |
3199 | } | |
3200 | ||
3201 | /* | |
9cbe330f | 3202 | * Interrupt from PHY are handled in tasklet (softirq) |
baef58b1 SH |
3203 | * because accessing phy registers requires spin wait which might |
3204 | * cause excess interrupt latency. | |
3205 | */ | |
9cbe330f | 3206 | static void skge_extirq(unsigned long arg) |
baef58b1 | 3207 | { |
9cbe330f | 3208 | struct skge_hw *hw = (struct skge_hw *) arg; |
baef58b1 SH |
3209 | int port; |
3210 | ||
cfc3ed79 | 3211 | for (port = 0; port < hw->ports; port++) { |
baef58b1 SH |
3212 | struct net_device *dev = hw->dev[port]; |
3213 | ||
cfc3ed79 | 3214 | if (netif_running(dev)) { |
9cbe330f SH |
3215 | struct skge_port *skge = netdev_priv(dev); |
3216 | ||
3217 | spin_lock(&hw->phy_lock); | |
baef58b1 SH |
3218 | if (hw->chip_id != CHIP_ID_GENESIS) |
3219 | yukon_phy_intr(skge); | |
64f6b64d | 3220 | else if (hw->phy_type == SK_PHY_BCOM) |
45bada65 | 3221 | bcom_phy_intr(skge); |
9cbe330f | 3222 | spin_unlock(&hw->phy_lock); |
baef58b1 SH |
3223 | } |
3224 | } | |
baef58b1 | 3225 | |
7c442fa1 | 3226 | spin_lock_irq(&hw->hw_lock); |
baef58b1 SH |
3227 | hw->intr_mask |= IS_EXT_REG; |
3228 | skge_write32(hw, B0_IMSK, hw->intr_mask); | |
78bc2186 | 3229 | skge_read32(hw, B0_IMSK); |
7c442fa1 | 3230 | spin_unlock_irq(&hw->hw_lock); |
baef58b1 SH |
3231 | } |
3232 | ||
7d12e780 | 3233 | static irqreturn_t skge_intr(int irq, void *dev_id) |
baef58b1 SH |
3234 | { |
3235 | struct skge_hw *hw = dev_id; | |
cfc3ed79 | 3236 | u32 status; |
29365c90 | 3237 | int handled = 0; |
baef58b1 | 3238 | |
29365c90 | 3239 | spin_lock(&hw->hw_lock); |
cfc3ed79 SH |
3240 | /* Reading this register masks IRQ */ |
3241 | status = skge_read32(hw, B0_SP_ISRC); | |
0486a8c8 | 3242 | if (status == 0 || status == ~0) |
29365c90 | 3243 | goto out; |
baef58b1 | 3244 | |
29365c90 | 3245 | handled = 1; |
7c442fa1 | 3246 | status &= hw->intr_mask; |
cfc3ed79 SH |
3247 | if (status & IS_EXT_REG) { |
3248 | hw->intr_mask &= ~IS_EXT_REG; | |
9cbe330f | 3249 | tasklet_schedule(&hw->phy_task); |
cfc3ed79 SH |
3250 | } |
3251 | ||
513f533e | 3252 | if (status & (IS_XA1_F|IS_R1_F)) { |
bea3348e | 3253 | struct skge_port *skge = netdev_priv(hw->dev[0]); |
513f533e | 3254 | hw->intr_mask &= ~(IS_XA1_F|IS_R1_F); |
bea3348e | 3255 | netif_rx_schedule(hw->dev[0], &skge->napi); |
baef58b1 SH |
3256 | } |
3257 | ||
7c442fa1 SH |
3258 | if (status & IS_PA_TO_TX1) |
3259 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1); | |
cfc3ed79 | 3260 | |
d25f5a67 SH |
3261 | if (status & IS_PA_TO_RX1) { |
3262 | struct skge_port *skge = netdev_priv(hw->dev[0]); | |
d25f5a67 | 3263 | |
d25f5a67 | 3264 | ++skge->net_stats.rx_over_errors; |
7c442fa1 | 3265 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1); |
d25f5a67 SH |
3266 | } |
3267 | ||
d25f5a67 | 3268 | |
baef58b1 SH |
3269 | if (status & IS_MAC1) |
3270 | skge_mac_intr(hw, 0); | |
95566065 | 3271 | |
7c442fa1 | 3272 | if (hw->dev[1]) { |
bea3348e SH |
3273 | struct skge_port *skge = netdev_priv(hw->dev[1]); |
3274 | ||
513f533e SH |
3275 | if (status & (IS_XA2_F|IS_R2_F)) { |
3276 | hw->intr_mask &= ~(IS_XA2_F|IS_R2_F); | |
bea3348e | 3277 | netif_rx_schedule(hw->dev[1], &skge->napi); |
7c442fa1 SH |
3278 | } |
3279 | ||
3280 | if (status & IS_PA_TO_RX2) { | |
7c442fa1 SH |
3281 | ++skge->net_stats.rx_over_errors; |
3282 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2); | |
3283 | } | |
3284 | ||
3285 | if (status & IS_PA_TO_TX2) | |
3286 | skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2); | |
3287 | ||
3288 | if (status & IS_MAC2) | |
3289 | skge_mac_intr(hw, 1); | |
3290 | } | |
baef58b1 SH |
3291 | |
3292 | if (status & IS_HW_ERR) | |
3293 | skge_error_irq(hw); | |
3294 | ||
7e676d91 | 3295 | skge_write32(hw, B0_IMSK, hw->intr_mask); |
78bc2186 | 3296 | skge_read32(hw, B0_IMSK); |
29365c90 | 3297 | out: |
7c442fa1 | 3298 | spin_unlock(&hw->hw_lock); |
baef58b1 | 3299 | |
29365c90 | 3300 | return IRQ_RETVAL(handled); |
baef58b1 SH |
3301 | } |
3302 | ||
3303 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3304 | static void skge_netpoll(struct net_device *dev) | |
3305 | { | |
3306 | struct skge_port *skge = netdev_priv(dev); | |
3307 | ||
3308 | disable_irq(dev->irq); | |
7d12e780 | 3309 | skge_intr(dev->irq, skge->hw); |
baef58b1 SH |
3310 | enable_irq(dev->irq); |
3311 | } | |
3312 | #endif | |
3313 | ||
3314 | static int skge_set_mac_address(struct net_device *dev, void *p) | |
3315 | { | |
3316 | struct skge_port *skge = netdev_priv(dev); | |
c2681dd8 SH |
3317 | struct skge_hw *hw = skge->hw; |
3318 | unsigned port = skge->port; | |
3319 | const struct sockaddr *addr = p; | |
2eb3e621 | 3320 | u16 ctrl; |
baef58b1 SH |
3321 | |
3322 | if (!is_valid_ether_addr(addr->sa_data)) | |
3323 | return -EADDRNOTAVAIL; | |
3324 | ||
baef58b1 | 3325 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); |
c2681dd8 | 3326 | |
9cbe330f SH |
3327 | if (!netif_running(dev)) { |
3328 | memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN); | |
3329 | memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN); | |
3330 | } else { | |
3331 | /* disable Rx */ | |
3332 | spin_lock_bh(&hw->phy_lock); | |
3333 | ctrl = gma_read16(hw, port, GM_GP_CTRL); | |
3334 | gma_write16(hw, port, GM_GP_CTRL, ctrl & ~GM_GPCR_RX_ENA); | |
2eb3e621 | 3335 | |
9cbe330f SH |
3336 | memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN); |
3337 | memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN); | |
2eb3e621 | 3338 | |
2eb3e621 SH |
3339 | if (hw->chip_id == CHIP_ID_GENESIS) |
3340 | xm_outaddr(hw, port, XM_SA, dev->dev_addr); | |
3341 | else { | |
3342 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr); | |
3343 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr); | |
3344 | } | |
2eb3e621 | 3345 | |
9cbe330f SH |
3346 | gma_write16(hw, port, GM_GP_CTRL, ctrl); |
3347 | spin_unlock_bh(&hw->phy_lock); | |
3348 | } | |
c2681dd8 SH |
3349 | |
3350 | return 0; | |
baef58b1 SH |
3351 | } |
3352 | ||
3353 | static const struct { | |
3354 | u8 id; | |
3355 | const char *name; | |
3356 | } skge_chips[] = { | |
3357 | { CHIP_ID_GENESIS, "Genesis" }, | |
3358 | { CHIP_ID_YUKON, "Yukon" }, | |
3359 | { CHIP_ID_YUKON_LITE, "Yukon-Lite"}, | |
3360 | { CHIP_ID_YUKON_LP, "Yukon-LP"}, | |
baef58b1 SH |
3361 | }; |
3362 | ||
3363 | static const char *skge_board_name(const struct skge_hw *hw) | |
3364 | { | |
3365 | int i; | |
3366 | static char buf[16]; | |
3367 | ||
3368 | for (i = 0; i < ARRAY_SIZE(skge_chips); i++) | |
3369 | if (skge_chips[i].id == hw->chip_id) | |
3370 | return skge_chips[i].name; | |
3371 | ||
3372 | snprintf(buf, sizeof buf, "chipid 0x%x", hw->chip_id); | |
3373 | return buf; | |
3374 | } | |
3375 | ||
3376 | ||
3377 | /* | |
3378 | * Setup the board data structure, but don't bring up | |
3379 | * the port(s) | |
3380 | */ | |
3381 | static int skge_reset(struct skge_hw *hw) | |
3382 | { | |
adba9e23 | 3383 | u32 reg; |
b9d64acc | 3384 | u16 ctst, pci_status; |
64f6b64d | 3385 | u8 t8, mac_cfg, pmd_type; |
981d0377 | 3386 | int i; |
baef58b1 SH |
3387 | |
3388 | ctst = skge_read16(hw, B0_CTST); | |
3389 | ||
3390 | /* do a SW reset */ | |
3391 | skge_write8(hw, B0_CTST, CS_RST_SET); | |
3392 | skge_write8(hw, B0_CTST, CS_RST_CLR); | |
3393 | ||
3394 | /* clear PCI errors, if any */ | |
b9d64acc SH |
3395 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); |
3396 | skge_write8(hw, B2_TST_CTRL2, 0); | |
baef58b1 | 3397 | |
b9d64acc SH |
3398 | pci_read_config_word(hw->pdev, PCI_STATUS, &pci_status); |
3399 | pci_write_config_word(hw->pdev, PCI_STATUS, | |
3400 | pci_status | PCI_STATUS_ERROR_BITS); | |
3401 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); | |
baef58b1 SH |
3402 | skge_write8(hw, B0_CTST, CS_MRST_CLR); |
3403 | ||
3404 | /* restore CLK_RUN bits (for Yukon-Lite) */ | |
3405 | skge_write16(hw, B0_CTST, | |
3406 | ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA)); | |
3407 | ||
3408 | hw->chip_id = skge_read8(hw, B2_CHIP_ID); | |
64f6b64d | 3409 | hw->phy_type = skge_read8(hw, B2_E_1) & 0xf; |
5e1705dd SH |
3410 | pmd_type = skge_read8(hw, B2_PMD_TYP); |
3411 | hw->copper = (pmd_type == 'T' || pmd_type == '1'); | |
baef58b1 | 3412 | |
95566065 | 3413 | switch (hw->chip_id) { |
baef58b1 | 3414 | case CHIP_ID_GENESIS: |
64f6b64d SH |
3415 | switch (hw->phy_type) { |
3416 | case SK_PHY_XMAC: | |
3417 | hw->phy_addr = PHY_ADDR_XMAC; | |
3418 | break; | |
baef58b1 SH |
3419 | case SK_PHY_BCOM: |
3420 | hw->phy_addr = PHY_ADDR_BCOM; | |
3421 | break; | |
3422 | default: | |
1479d13c SH |
3423 | dev_err(&hw->pdev->dev, "unsupported phy type 0x%x\n", |
3424 | hw->phy_type); | |
baef58b1 SH |
3425 | return -EOPNOTSUPP; |
3426 | } | |
3427 | break; | |
3428 | ||
3429 | case CHIP_ID_YUKON: | |
3430 | case CHIP_ID_YUKON_LITE: | |
3431 | case CHIP_ID_YUKON_LP: | |
64f6b64d | 3432 | if (hw->phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S') |
5e1705dd | 3433 | hw->copper = 1; |
baef58b1 SH |
3434 | |
3435 | hw->phy_addr = PHY_ADDR_MARV; | |
baef58b1 SH |
3436 | break; |
3437 | ||
3438 | default: | |
1479d13c SH |
3439 | dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n", |
3440 | hw->chip_id); | |
baef58b1 SH |
3441 | return -EOPNOTSUPP; |
3442 | } | |
3443 | ||
981d0377 SH |
3444 | mac_cfg = skge_read8(hw, B2_MAC_CFG); |
3445 | hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2; | |
3446 | hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4; | |
baef58b1 SH |
3447 | |
3448 | /* read the adapters RAM size */ | |
3449 | t8 = skge_read8(hw, B2_E_0); | |
3450 | if (hw->chip_id == CHIP_ID_GENESIS) { | |
3451 | if (t8 == 3) { | |
3452 | /* special case: 4 x 64k x 36, offset = 0x80000 */ | |
3453 | hw->ram_size = 0x100000; | |
3454 | hw->ram_offset = 0x80000; | |
3455 | } else | |
3456 | hw->ram_size = t8 * 512; | |
3457 | } | |
3458 | else if (t8 == 0) | |
3459 | hw->ram_size = 0x20000; | |
3460 | else | |
3461 | hw->ram_size = t8 * 4096; | |
3462 | ||
4ebabfcb | 3463 | hw->intr_mask = IS_HW_ERR; |
cfc3ed79 | 3464 | |
4ebabfcb | 3465 | /* Use PHY IRQ for all but fiber based Genesis board */ |
64f6b64d SH |
3466 | if (!(hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC)) |
3467 | hw->intr_mask |= IS_EXT_REG; | |
3468 | ||
baef58b1 SH |
3469 | if (hw->chip_id == CHIP_ID_GENESIS) |
3470 | genesis_init(hw); | |
3471 | else { | |
3472 | /* switch power to VCC (WA for VAUX problem) */ | |
3473 | skge_write8(hw, B0_POWER_CTRL, | |
3474 | PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON); | |
adba9e23 | 3475 | |
050ec18a SH |
3476 | /* avoid boards with stuck Hardware error bits */ |
3477 | if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) && | |
3478 | (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) { | |
1479d13c | 3479 | dev_warn(&hw->pdev->dev, "stuck hardware sensor bit\n"); |
050ec18a SH |
3480 | hw->intr_mask &= ~IS_HW_ERR; |
3481 | } | |
3482 | ||
adba9e23 SH |
3483 | /* Clear PHY COMA */ |
3484 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
3485 | pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®); | |
3486 | reg &= ~PCI_PHY_COMA; | |
3487 | pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg); | |
3488 | skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); | |
3489 | ||
3490 | ||
981d0377 | 3491 | for (i = 0; i < hw->ports; i++) { |
6b0c1480 SH |
3492 | skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET); |
3493 | skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR); | |
baef58b1 SH |
3494 | } |
3495 | } | |
3496 | ||
3497 | /* turn off hardware timer (unused) */ | |
3498 | skge_write8(hw, B2_TI_CTRL, TIM_STOP); | |
3499 | skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ); | |
3500 | skge_write8(hw, B0_LED, LED_STAT_ON); | |
3501 | ||
3502 | /* enable the Tx Arbiters */ | |
981d0377 | 3503 | for (i = 0; i < hw->ports; i++) |
6b0c1480 | 3504 | skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB); |
baef58b1 SH |
3505 | |
3506 | /* Initialize ram interface */ | |
3507 | skge_write16(hw, B3_RI_CTRL, RI_RST_CLR); | |
3508 | ||
3509 | skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53); | |
3510 | skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53); | |
3511 | skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53); | |
3512 | skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53); | |
3513 | skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53); | |
3514 | skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53); | |
3515 | skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53); | |
3516 | skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53); | |
3517 | skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53); | |
3518 | skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53); | |
3519 | skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53); | |
3520 | skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53); | |
3521 | ||
3522 | skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK); | |
3523 | ||
3524 | /* Set interrupt moderation for Transmit only | |
3525 | * Receive interrupts avoided by NAPI | |
3526 | */ | |
3527 | skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F); | |
3528 | skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100)); | |
3529 | skge_write32(hw, B2_IRQM_CTRL, TIM_START); | |
3530 | ||
baef58b1 SH |
3531 | skge_write32(hw, B0_IMSK, hw->intr_mask); |
3532 | ||
981d0377 | 3533 | for (i = 0; i < hw->ports; i++) { |
baef58b1 SH |
3534 | if (hw->chip_id == CHIP_ID_GENESIS) |
3535 | genesis_reset(hw, i); | |
3536 | else | |
3537 | yukon_reset(hw, i); | |
3538 | } | |
baef58b1 SH |
3539 | |
3540 | return 0; | |
3541 | } | |
3542 | ||
3543 | /* Initialize network device */ | |
981d0377 SH |
3544 | static struct net_device *skge_devinit(struct skge_hw *hw, int port, |
3545 | int highmem) | |
baef58b1 SH |
3546 | { |
3547 | struct skge_port *skge; | |
3548 | struct net_device *dev = alloc_etherdev(sizeof(*skge)); | |
3549 | ||
3550 | if (!dev) { | |
1479d13c | 3551 | dev_err(&hw->pdev->dev, "etherdev alloc failed\n"); |
baef58b1 SH |
3552 | return NULL; |
3553 | } | |
3554 | ||
baef58b1 SH |
3555 | SET_NETDEV_DEV(dev, &hw->pdev->dev); |
3556 | dev->open = skge_up; | |
3557 | dev->stop = skge_down; | |
2cd8e5d3 | 3558 | dev->do_ioctl = skge_ioctl; |
baef58b1 SH |
3559 | dev->hard_start_xmit = skge_xmit_frame; |
3560 | dev->get_stats = skge_get_stats; | |
3561 | if (hw->chip_id == CHIP_ID_GENESIS) | |
3562 | dev->set_multicast_list = genesis_set_multicast; | |
3563 | else | |
3564 | dev->set_multicast_list = yukon_set_multicast; | |
3565 | ||
3566 | dev->set_mac_address = skge_set_mac_address; | |
3567 | dev->change_mtu = skge_change_mtu; | |
3568 | SET_ETHTOOL_OPS(dev, &skge_ethtool_ops); | |
3569 | dev->tx_timeout = skge_tx_timeout; | |
3570 | dev->watchdog_timeo = TX_WATCHDOG; | |
baef58b1 SH |
3571 | #ifdef CONFIG_NET_POLL_CONTROLLER |
3572 | dev->poll_controller = skge_netpoll; | |
3573 | #endif | |
3574 | dev->irq = hw->pdev->irq; | |
513f533e | 3575 | |
981d0377 SH |
3576 | if (highmem) |
3577 | dev->features |= NETIF_F_HIGHDMA; | |
baef58b1 SH |
3578 | |
3579 | skge = netdev_priv(dev); | |
bea3348e | 3580 | netif_napi_add(dev, &skge->napi, skge_poll, NAPI_WEIGHT); |
baef58b1 SH |
3581 | skge->netdev = dev; |
3582 | skge->hw = hw; | |
3583 | skge->msg_enable = netif_msg_init(debug, default_msg); | |
9cbe330f | 3584 | |
baef58b1 SH |
3585 | skge->tx_ring.count = DEFAULT_TX_RING_SIZE; |
3586 | skge->rx_ring.count = DEFAULT_RX_RING_SIZE; | |
3587 | ||
3588 | /* Auto speed and flow control */ | |
3589 | skge->autoneg = AUTONEG_ENABLE; | |
5d5c8e03 | 3590 | skge->flow_control = FLOW_MODE_SYM_OR_REM; |
baef58b1 SH |
3591 | skge->duplex = -1; |
3592 | skge->speed = -1; | |
31b619c5 | 3593 | skge->advertising = skge_supported_modes(hw); |
5b982c5b SH |
3594 | |
3595 | if (pci_wake_enabled(hw->pdev)) | |
3596 | skge->wol = wol_supported(hw) & WAKE_MAGIC; | |
baef58b1 SH |
3597 | |
3598 | hw->dev[port] = dev; | |
3599 | ||
3600 | skge->port = port; | |
3601 | ||
64f6b64d | 3602 | /* Only used for Genesis XMAC */ |
9cbe330f | 3603 | setup_timer(&skge->link_timer, xm_link_timer, (unsigned long) skge); |
64f6b64d | 3604 | |
baef58b1 SH |
3605 | if (hw->chip_id != CHIP_ID_GENESIS) { |
3606 | dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; | |
3607 | skge->rx_csum = 1; | |
3608 | } | |
3609 | ||
3610 | /* read the mac address */ | |
3611 | memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN); | |
56230d53 | 3612 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
baef58b1 SH |
3613 | |
3614 | /* device is off until link detection */ | |
3615 | netif_carrier_off(dev); | |
3616 | netif_stop_queue(dev); | |
3617 | ||
3618 | return dev; | |
3619 | } | |
3620 | ||
3621 | static void __devinit skge_show_addr(struct net_device *dev) | |
3622 | { | |
3623 | const struct skge_port *skge = netdev_priv(dev); | |
0795af57 | 3624 | DECLARE_MAC_BUF(mac); |
baef58b1 SH |
3625 | |
3626 | if (netif_msg_probe(skge)) | |
0795af57 JP |
3627 | printk(KERN_INFO PFX "%s: addr %s\n", |
3628 | dev->name, print_mac(mac, dev->dev_addr)); | |
baef58b1 SH |
3629 | } |
3630 | ||
3631 | static int __devinit skge_probe(struct pci_dev *pdev, | |
3632 | const struct pci_device_id *ent) | |
3633 | { | |
3634 | struct net_device *dev, *dev1; | |
3635 | struct skge_hw *hw; | |
3636 | int err, using_dac = 0; | |
3637 | ||
203babb6 SH |
3638 | err = pci_enable_device(pdev); |
3639 | if (err) { | |
1479d13c | 3640 | dev_err(&pdev->dev, "cannot enable PCI device\n"); |
baef58b1 SH |
3641 | goto err_out; |
3642 | } | |
3643 | ||
203babb6 SH |
3644 | err = pci_request_regions(pdev, DRV_NAME); |
3645 | if (err) { | |
1479d13c | 3646 | dev_err(&pdev->dev, "cannot obtain PCI resources\n"); |
baef58b1 SH |
3647 | goto err_out_disable_pdev; |
3648 | } | |
3649 | ||
3650 | pci_set_master(pdev); | |
3651 | ||
93aea718 | 3652 | if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { |
baef58b1 | 3653 | using_dac = 1; |
77783a78 | 3654 | err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); |
93aea718 SH |
3655 | } else if (!(err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) { |
3656 | using_dac = 0; | |
3657 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
3658 | } | |
3659 | ||
3660 | if (err) { | |
1479d13c | 3661 | dev_err(&pdev->dev, "no usable DMA configuration\n"); |
93aea718 | 3662 | goto err_out_free_regions; |
baef58b1 SH |
3663 | } |
3664 | ||
3665 | #ifdef __BIG_ENDIAN | |
8f3f8193 | 3666 | /* byte swap descriptors in hardware */ |
baef58b1 SH |
3667 | { |
3668 | u32 reg; | |
3669 | ||
3670 | pci_read_config_dword(pdev, PCI_DEV_REG2, ®); | |
3671 | reg |= PCI_REV_DESC; | |
3672 | pci_write_config_dword(pdev, PCI_DEV_REG2, reg); | |
3673 | } | |
3674 | #endif | |
3675 | ||
3676 | err = -ENOMEM; | |
7e863061 | 3677 | hw = kzalloc(sizeof(*hw), GFP_KERNEL); |
baef58b1 | 3678 | if (!hw) { |
1479d13c | 3679 | dev_err(&pdev->dev, "cannot allocate hardware struct\n"); |
baef58b1 SH |
3680 | goto err_out_free_regions; |
3681 | } | |
3682 | ||
baef58b1 | 3683 | hw->pdev = pdev; |
d38efdd6 | 3684 | spin_lock_init(&hw->hw_lock); |
9cbe330f SH |
3685 | spin_lock_init(&hw->phy_lock); |
3686 | tasklet_init(&hw->phy_task, &skge_extirq, (unsigned long) hw); | |
baef58b1 SH |
3687 | |
3688 | hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000); | |
3689 | if (!hw->regs) { | |
1479d13c | 3690 | dev_err(&pdev->dev, "cannot map device registers\n"); |
baef58b1 SH |
3691 | goto err_out_free_hw; |
3692 | } | |
3693 | ||
baef58b1 SH |
3694 | err = skge_reset(hw); |
3695 | if (err) | |
ccdaa2a9 | 3696 | goto err_out_iounmap; |
baef58b1 | 3697 | |
7c7459d1 GKH |
3698 | printk(KERN_INFO PFX DRV_VERSION " addr 0x%llx irq %d chip %s rev %d\n", |
3699 | (unsigned long long)pci_resource_start(pdev, 0), pdev->irq, | |
981d0377 | 3700 | skge_board_name(hw), hw->chip_rev); |
baef58b1 | 3701 | |
ccdaa2a9 SH |
3702 | dev = skge_devinit(hw, 0, using_dac); |
3703 | if (!dev) | |
baef58b1 SH |
3704 | goto err_out_led_off; |
3705 | ||
fae87592 | 3706 | /* Some motherboards are broken and has zero in ROM. */ |
1479d13c SH |
3707 | if (!is_valid_ether_addr(dev->dev_addr)) |
3708 | dev_warn(&pdev->dev, "bad (zero?) ethernet address in rom\n"); | |
631ae320 | 3709 | |
203babb6 SH |
3710 | err = register_netdev(dev); |
3711 | if (err) { | |
1479d13c | 3712 | dev_err(&pdev->dev, "cannot register net device\n"); |
baef58b1 SH |
3713 | goto err_out_free_netdev; |
3714 | } | |
3715 | ||
ccdaa2a9 SH |
3716 | err = request_irq(pdev->irq, skge_intr, IRQF_SHARED, dev->name, hw); |
3717 | if (err) { | |
1479d13c | 3718 | dev_err(&pdev->dev, "%s: cannot assign irq %d\n", |
ccdaa2a9 SH |
3719 | dev->name, pdev->irq); |
3720 | goto err_out_unregister; | |
3721 | } | |
baef58b1 SH |
3722 | skge_show_addr(dev); |
3723 | ||
981d0377 | 3724 | if (hw->ports > 1 && (dev1 = skge_devinit(hw, 1, using_dac))) { |
baef58b1 SH |
3725 | if (register_netdev(dev1) == 0) |
3726 | skge_show_addr(dev1); | |
3727 | else { | |
3728 | /* Failure to register second port need not be fatal */ | |
1479d13c | 3729 | dev_warn(&pdev->dev, "register of second port failed\n"); |
baef58b1 SH |
3730 | hw->dev[1] = NULL; |
3731 | free_netdev(dev1); | |
3732 | } | |
3733 | } | |
ccdaa2a9 | 3734 | pci_set_drvdata(pdev, hw); |
baef58b1 SH |
3735 | |
3736 | return 0; | |
3737 | ||
ccdaa2a9 SH |
3738 | err_out_unregister: |
3739 | unregister_netdev(dev); | |
baef58b1 SH |
3740 | err_out_free_netdev: |
3741 | free_netdev(dev); | |
3742 | err_out_led_off: | |
3743 | skge_write16(hw, B0_LED, LED_STAT_OFF); | |
baef58b1 SH |
3744 | err_out_iounmap: |
3745 | iounmap(hw->regs); | |
3746 | err_out_free_hw: | |
3747 | kfree(hw); | |
3748 | err_out_free_regions: | |
3749 | pci_release_regions(pdev); | |
3750 | err_out_disable_pdev: | |
3751 | pci_disable_device(pdev); | |
3752 | pci_set_drvdata(pdev, NULL); | |
3753 | err_out: | |
3754 | return err; | |
3755 | } | |
3756 | ||
3757 | static void __devexit skge_remove(struct pci_dev *pdev) | |
3758 | { | |
3759 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
3760 | struct net_device *dev0, *dev1; | |
3761 | ||
95566065 | 3762 | if (!hw) |
baef58b1 SH |
3763 | return; |
3764 | ||
208491d8 SH |
3765 | flush_scheduled_work(); |
3766 | ||
baef58b1 SH |
3767 | if ((dev1 = hw->dev[1])) |
3768 | unregister_netdev(dev1); | |
3769 | dev0 = hw->dev[0]; | |
3770 | unregister_netdev(dev0); | |
3771 | ||
9cbe330f SH |
3772 | tasklet_disable(&hw->phy_task); |
3773 | ||
7c442fa1 SH |
3774 | spin_lock_irq(&hw->hw_lock); |
3775 | hw->intr_mask = 0; | |
46a60f2d | 3776 | skge_write32(hw, B0_IMSK, 0); |
78bc2186 | 3777 | skge_read32(hw, B0_IMSK); |
7c442fa1 SH |
3778 | spin_unlock_irq(&hw->hw_lock); |
3779 | ||
46a60f2d | 3780 | skge_write16(hw, B0_LED, LED_STAT_OFF); |
46a60f2d SH |
3781 | skge_write8(hw, B0_CTST, CS_RST_SET); |
3782 | ||
baef58b1 SH |
3783 | free_irq(pdev->irq, hw); |
3784 | pci_release_regions(pdev); | |
3785 | pci_disable_device(pdev); | |
3786 | if (dev1) | |
3787 | free_netdev(dev1); | |
3788 | free_netdev(dev0); | |
46a60f2d | 3789 | |
baef58b1 SH |
3790 | iounmap(hw->regs); |
3791 | kfree(hw); | |
3792 | pci_set_drvdata(pdev, NULL); | |
3793 | } | |
3794 | ||
3795 | #ifdef CONFIG_PM | |
2a569579 | 3796 | static int skge_suspend(struct pci_dev *pdev, pm_message_t state) |
baef58b1 SH |
3797 | { |
3798 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
a504e64a SH |
3799 | int i, err, wol = 0; |
3800 | ||
e3b7df17 SH |
3801 | if (!hw) |
3802 | return 0; | |
3803 | ||
a504e64a SH |
3804 | err = pci_save_state(pdev); |
3805 | if (err) | |
3806 | return err; | |
baef58b1 | 3807 | |
d38efdd6 | 3808 | for (i = 0; i < hw->ports; i++) { |
baef58b1 | 3809 | struct net_device *dev = hw->dev[i]; |
a504e64a | 3810 | struct skge_port *skge = netdev_priv(dev); |
baef58b1 | 3811 | |
a504e64a SH |
3812 | if (netif_running(dev)) |
3813 | skge_down(dev); | |
3814 | if (skge->wol) | |
3815 | skge_wol_init(skge); | |
d38efdd6 | 3816 | |
a504e64a | 3817 | wol |= skge->wol; |
baef58b1 SH |
3818 | } |
3819 | ||
d38efdd6 | 3820 | skge_write32(hw, B0_IMSK, 0); |
2a569579 | 3821 | pci_enable_wake(pdev, pci_choose_state(pdev, state), wol); |
baef58b1 SH |
3822 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
3823 | ||
3824 | return 0; | |
3825 | } | |
3826 | ||
3827 | static int skge_resume(struct pci_dev *pdev) | |
3828 | { | |
3829 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
d38efdd6 | 3830 | int i, err; |
baef58b1 | 3831 | |
e3b7df17 SH |
3832 | if (!hw) |
3833 | return 0; | |
3834 | ||
a504e64a SH |
3835 | err = pci_set_power_state(pdev, PCI_D0); |
3836 | if (err) | |
3837 | goto out; | |
3838 | ||
3839 | err = pci_restore_state(pdev); | |
3840 | if (err) | |
3841 | goto out; | |
3842 | ||
baef58b1 SH |
3843 | pci_enable_wake(pdev, PCI_D0, 0); |
3844 | ||
d38efdd6 SH |
3845 | err = skge_reset(hw); |
3846 | if (err) | |
3847 | goto out; | |
baef58b1 | 3848 | |
d38efdd6 | 3849 | for (i = 0; i < hw->ports; i++) { |
baef58b1 | 3850 | struct net_device *dev = hw->dev[i]; |
d38efdd6 | 3851 | |
d38efdd6 SH |
3852 | if (netif_running(dev)) { |
3853 | err = skge_up(dev); | |
3854 | ||
3855 | if (err) { | |
3856 | printk(KERN_ERR PFX "%s: could not up: %d\n", | |
3857 | dev->name, err); | |
edd702e8 | 3858 | dev_close(dev); |
d38efdd6 SH |
3859 | goto out; |
3860 | } | |
baef58b1 SH |
3861 | } |
3862 | } | |
d38efdd6 SH |
3863 | out: |
3864 | return err; | |
baef58b1 SH |
3865 | } |
3866 | #endif | |
3867 | ||
692412b3 SH |
3868 | static void skge_shutdown(struct pci_dev *pdev) |
3869 | { | |
3870 | struct skge_hw *hw = pci_get_drvdata(pdev); | |
3871 | int i, wol = 0; | |
3872 | ||
e3b7df17 SH |
3873 | if (!hw) |
3874 | return; | |
3875 | ||
692412b3 SH |
3876 | for (i = 0; i < hw->ports; i++) { |
3877 | struct net_device *dev = hw->dev[i]; | |
3878 | struct skge_port *skge = netdev_priv(dev); | |
3879 | ||
3880 | if (skge->wol) | |
3881 | skge_wol_init(skge); | |
3882 | wol |= skge->wol; | |
3883 | } | |
3884 | ||
3885 | pci_enable_wake(pdev, PCI_D3hot, wol); | |
3886 | pci_enable_wake(pdev, PCI_D3cold, wol); | |
3887 | ||
3888 | pci_disable_device(pdev); | |
3889 | pci_set_power_state(pdev, PCI_D3hot); | |
3890 | ||
3891 | } | |
3892 | ||
baef58b1 SH |
3893 | static struct pci_driver skge_driver = { |
3894 | .name = DRV_NAME, | |
3895 | .id_table = skge_id_table, | |
3896 | .probe = skge_probe, | |
3897 | .remove = __devexit_p(skge_remove), | |
3898 | #ifdef CONFIG_PM | |
3899 | .suspend = skge_suspend, | |
3900 | .resume = skge_resume, | |
3901 | #endif | |
692412b3 | 3902 | .shutdown = skge_shutdown, |
baef58b1 SH |
3903 | }; |
3904 | ||
3905 | static int __init skge_init_module(void) | |
3906 | { | |
29917620 | 3907 | return pci_register_driver(&skge_driver); |
baef58b1 SH |
3908 | } |
3909 | ||
3910 | static void __exit skge_cleanup_module(void) | |
3911 | { | |
3912 | pci_unregister_driver(&skge_driver); | |
3913 | } | |
3914 | ||
3915 | module_init(skge_init_module); | |
3916 | module_exit(skge_cleanup_module); |