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cd28ab6a SH |
1 | /* |
2 | * New driver for Marvell Yukon 2 chipset. | |
3 | * Based on earlier sk98lin, and skge driver. | |
4 | * | |
5 | * This driver intentionally does not support all the features | |
6 | * of the original driver such as link fail-over and link management because | |
7 | * those should be done at higher levels. | |
8 | * | |
9 | * Copyright (C) 2005 Stephen Hemminger <shemminger@osdl.org> | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
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 | |
793b883e | 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
cd28ab6a SH |
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 | ||
26 | /* | |
cd28ab6a SH |
27 | * TOTEST |
28 | * - speed setting | |
724bca3c | 29 | * - suspend/resume |
cd28ab6a SH |
30 | */ |
31 | ||
32 | #include <linux/config.h> | |
793b883e | 33 | #include <linux/crc32.h> |
cd28ab6a SH |
34 | #include <linux/kernel.h> |
35 | #include <linux/version.h> | |
36 | #include <linux/module.h> | |
37 | #include <linux/netdevice.h> | |
d0bbccfa | 38 | #include <linux/dma-mapping.h> |
cd28ab6a SH |
39 | #include <linux/etherdevice.h> |
40 | #include <linux/ethtool.h> | |
41 | #include <linux/pci.h> | |
42 | #include <linux/ip.h> | |
43 | #include <linux/tcp.h> | |
44 | #include <linux/in.h> | |
45 | #include <linux/delay.h> | |
91c86df5 | 46 | #include <linux/workqueue.h> |
d1f13708 | 47 | #include <linux/if_vlan.h> |
d70cd51a | 48 | #include <linux/prefetch.h> |
ef743d33 | 49 | #include <linux/mii.h> |
cd28ab6a SH |
50 | |
51 | #include <asm/irq.h> | |
52 | ||
d1f13708 SH |
53 | #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) |
54 | #define SKY2_VLAN_TAG_USED 1 | |
55 | #endif | |
56 | ||
cd28ab6a SH |
57 | #include "sky2.h" |
58 | ||
59 | #define DRV_NAME "sky2" | |
e0c94455 | 60 | #define DRV_VERSION "0.12" |
cd28ab6a SH |
61 | #define PFX DRV_NAME " " |
62 | ||
63 | /* | |
64 | * The Yukon II chipset takes 64 bit command blocks (called list elements) | |
65 | * that are organized into three (receive, transmit, status) different rings | |
66 | * similar to Tigon3. A transmit can require several elements; | |
67 | * a receive requires one (or two if using 64 bit dma). | |
68 | */ | |
69 | ||
cd28ab6a | 70 | #define is_ec_a1(hw) \ |
21437643 SH |
71 | unlikely((hw)->chip_id == CHIP_ID_YUKON_EC && \ |
72 | (hw)->chip_rev == CHIP_REV_YU_EC_A1) | |
cd28ab6a | 73 | |
13210ce5 | 74 | #define RX_LE_SIZE 512 |
cd28ab6a | 75 | #define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le)) |
bea86103 | 76 | #define RX_MAX_PENDING (RX_LE_SIZE/2 - 2) |
13210ce5 | 77 | #define RX_DEF_PENDING RX_MAX_PENDING |
82788c7a | 78 | #define RX_SKB_ALIGN 8 |
793b883e SH |
79 | |
80 | #define TX_RING_SIZE 512 | |
81 | #define TX_DEF_PENDING (TX_RING_SIZE - 1) | |
82 | #define TX_MIN_PENDING 64 | |
83 | #define MAX_SKB_TX_LE (4 + 2*MAX_SKB_FRAGS) | |
cd28ab6a | 84 | |
793b883e | 85 | #define STATUS_RING_SIZE 2048 /* 2 ports * (TX + 2*RX) */ |
cd28ab6a SH |
86 | #define STATUS_LE_BYTES (STATUS_RING_SIZE*sizeof(struct sky2_status_le)) |
87 | #define ETH_JUMBO_MTU 9000 | |
88 | #define TX_WATCHDOG (5 * HZ) | |
89 | #define NAPI_WEIGHT 64 | |
90 | #define PHY_RETRIES 1000 | |
91 | ||
92 | static const u32 default_msg = | |
793b883e SH |
93 | NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK |
94 | | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR | |
95 | | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN | NETIF_MSG_INTR; | |
cd28ab6a | 96 | |
793b883e | 97 | static int debug = -1; /* defaults above */ |
cd28ab6a SH |
98 | module_param(debug, int, 0); |
99 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
100 | ||
bdb5c58e SH |
101 | static int copybreak __read_mostly = 256; |
102 | module_param(copybreak, int, 0); | |
103 | MODULE_PARM_DESC(copybreak, "Receive copy threshold"); | |
104 | ||
cd28ab6a | 105 | static const struct pci_device_id sky2_id_table[] = { |
793b883e | 106 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, |
cd28ab6a SH |
107 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, |
108 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) }, | |
109 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b01) }, | |
110 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4340) }, | |
111 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4341) }, | |
112 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4342) }, | |
113 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4343) }, | |
114 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4344) }, | |
115 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4345) }, | |
116 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4346) }, | |
117 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4347) }, | |
118 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4350) }, | |
119 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) }, | |
5a5b1ea0 | 120 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) }, |
cd28ab6a SH |
121 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) }, |
122 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) }, | |
123 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) }, | |
5a5b1ea0 | 124 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) }, |
cd28ab6a SH |
125 | { 0 } |
126 | }; | |
793b883e | 127 | |
cd28ab6a SH |
128 | MODULE_DEVICE_TABLE(pci, sky2_id_table); |
129 | ||
130 | /* Avoid conditionals by using array */ | |
131 | static const unsigned txqaddr[] = { Q_XA1, Q_XA2 }; | |
132 | static const unsigned rxqaddr[] = { Q_R1, Q_R2 }; | |
133 | ||
92f965e8 SH |
134 | /* This driver supports yukon2 chipset only */ |
135 | static const char *yukon2_name[] = { | |
136 | "XL", /* 0xb3 */ | |
137 | "EC Ultra", /* 0xb4 */ | |
138 | "UNKNOWN", /* 0xb5 */ | |
139 | "EC", /* 0xb6 */ | |
140 | "FE", /* 0xb7 */ | |
793b883e SH |
141 | }; |
142 | ||
793b883e | 143 | /* Access to external PHY */ |
ef743d33 | 144 | static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val) |
cd28ab6a SH |
145 | { |
146 | int i; | |
147 | ||
148 | gma_write16(hw, port, GM_SMI_DATA, val); | |
149 | gma_write16(hw, port, GM_SMI_CTRL, | |
150 | GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) | GM_SMI_CT_REG_AD(reg)); | |
151 | ||
152 | for (i = 0; i < PHY_RETRIES; i++) { | |
cd28ab6a | 153 | if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY)) |
ef743d33 | 154 | return 0; |
793b883e | 155 | udelay(1); |
cd28ab6a | 156 | } |
ef743d33 | 157 | |
793b883e | 158 | printk(KERN_WARNING PFX "%s: phy write timeout\n", hw->dev[port]->name); |
ef743d33 | 159 | return -ETIMEDOUT; |
cd28ab6a SH |
160 | } |
161 | ||
ef743d33 | 162 | static int __gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg, u16 *val) |
cd28ab6a SH |
163 | { |
164 | int i; | |
165 | ||
793b883e | 166 | gma_write16(hw, port, GM_SMI_CTRL, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) |
cd28ab6a SH |
167 | | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD); |
168 | ||
169 | for (i = 0; i < PHY_RETRIES; i++) { | |
ef743d33 SH |
170 | if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) { |
171 | *val = gma_read16(hw, port, GM_SMI_DATA); | |
172 | return 0; | |
173 | } | |
174 | ||
793b883e | 175 | udelay(1); |
cd28ab6a SH |
176 | } |
177 | ||
ef743d33 SH |
178 | return -ETIMEDOUT; |
179 | } | |
180 | ||
181 | static u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg) | |
182 | { | |
183 | u16 v; | |
184 | ||
185 | if (__gm_phy_read(hw, port, reg, &v) != 0) | |
186 | printk(KERN_WARNING PFX "%s: phy read timeout\n", hw->dev[port]->name); | |
187 | return v; | |
cd28ab6a SH |
188 | } |
189 | ||
5afa0a9c SH |
190 | static int sky2_set_power_state(struct sky2_hw *hw, pci_power_t state) |
191 | { | |
192 | u16 power_control; | |
193 | u32 reg1; | |
194 | int vaux; | |
195 | int ret = 0; | |
196 | ||
197 | pr_debug("sky2_set_power_state %d\n", state); | |
198 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
199 | ||
200 | pci_read_config_word(hw->pdev, hw->pm_cap + PCI_PM_PMC, &power_control); | |
201 | vaux = (sky2_read8(hw, B0_CTST) & Y2_VAUX_AVAIL) && | |
202 | (power_control & PCI_PM_CAP_PME_D3cold); | |
203 | ||
204 | pci_read_config_word(hw->pdev, hw->pm_cap + PCI_PM_CTRL, &power_control); | |
205 | ||
206 | power_control |= PCI_PM_CTRL_PME_STATUS; | |
207 | power_control &= ~(PCI_PM_CTRL_STATE_MASK); | |
208 | ||
209 | switch (state) { | |
210 | case PCI_D0: | |
211 | /* switch power to VCC (WA for VAUX problem) */ | |
212 | sky2_write8(hw, B0_POWER_CTRL, | |
213 | PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON); | |
214 | ||
215 | /* disable Core Clock Division, */ | |
216 | sky2_write32(hw, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS); | |
217 | ||
218 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) | |
219 | /* enable bits are inverted */ | |
220 | sky2_write8(hw, B2_Y2_CLK_GATE, | |
221 | Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS | | |
222 | Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS | | |
223 | Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS); | |
224 | else | |
225 | sky2_write8(hw, B2_Y2_CLK_GATE, 0); | |
226 | ||
227 | /* Turn off phy power saving */ | |
228 | pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®1); | |
229 | reg1 &= ~(PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD); | |
230 | ||
d571b694 | 231 | /* looks like this XL is back asswards .. */ |
5afa0a9c SH |
232 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) { |
233 | reg1 |= PCI_Y2_PHY1_COMA; | |
234 | if (hw->ports > 1) | |
235 | reg1 |= PCI_Y2_PHY2_COMA; | |
236 | } | |
237 | pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg1); | |
238 | break; | |
239 | ||
240 | case PCI_D3hot: | |
241 | case PCI_D3cold: | |
242 | /* Turn on phy power saving */ | |
243 | pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®1); | |
244 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) | |
245 | reg1 &= ~(PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD); | |
246 | else | |
247 | reg1 |= (PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD); | |
248 | pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg1); | |
249 | ||
250 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) | |
251 | sky2_write8(hw, B2_Y2_CLK_GATE, 0); | |
252 | else | |
253 | /* enable bits are inverted */ | |
254 | sky2_write8(hw, B2_Y2_CLK_GATE, | |
255 | Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS | | |
256 | Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS | | |
257 | Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS); | |
258 | ||
259 | /* switch power to VAUX */ | |
260 | if (vaux && state != PCI_D3cold) | |
261 | sky2_write8(hw, B0_POWER_CTRL, | |
262 | (PC_VAUX_ENA | PC_VCC_ENA | | |
263 | PC_VAUX_ON | PC_VCC_OFF)); | |
264 | break; | |
265 | default: | |
266 | printk(KERN_ERR PFX "Unknown power state %d\n", state); | |
267 | ret = -1; | |
268 | } | |
269 | ||
270 | pci_write_config_byte(hw->pdev, hw->pm_cap + PCI_PM_CTRL, power_control); | |
271 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); | |
272 | return ret; | |
273 | } | |
274 | ||
cd28ab6a SH |
275 | static void sky2_phy_reset(struct sky2_hw *hw, unsigned port) |
276 | { | |
277 | u16 reg; | |
278 | ||
279 | /* disable all GMAC IRQ's */ | |
280 | sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); | |
281 | /* disable PHY IRQs */ | |
282 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0); | |
793b883e | 283 | |
cd28ab6a SH |
284 | gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */ |
285 | gma_write16(hw, port, GM_MC_ADDR_H2, 0); | |
286 | gma_write16(hw, port, GM_MC_ADDR_H3, 0); | |
287 | gma_write16(hw, port, GM_MC_ADDR_H4, 0); | |
288 | ||
289 | reg = gma_read16(hw, port, GM_RX_CTRL); | |
290 | reg |= GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA; | |
291 | gma_write16(hw, port, GM_RX_CTRL, reg); | |
292 | } | |
293 | ||
294 | static void sky2_phy_init(struct sky2_hw *hw, unsigned port) | |
295 | { | |
296 | struct sky2_port *sky2 = netdev_priv(hw->dev[port]); | |
793b883e | 297 | u16 ctrl, ct1000, adv, pg, ledctrl, ledover; |
cd28ab6a | 298 | |
793b883e | 299 | if (sky2->autoneg == AUTONEG_ENABLE && hw->chip_id != CHIP_ID_YUKON_XL) { |
cd28ab6a SH |
300 | u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL); |
301 | ||
302 | ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK | | |
793b883e | 303 | PHY_M_EC_MAC_S_MSK); |
cd28ab6a SH |
304 | ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ); |
305 | ||
306 | if (hw->chip_id == CHIP_ID_YUKON_EC) | |
307 | ectrl |= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA; | |
308 | else | |
309 | ectrl |= PHY_M_EC_M_DSC(2) | PHY_M_EC_S_DSC(3); | |
310 | ||
311 | gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl); | |
312 | } | |
313 | ||
314 | ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
315 | if (hw->copper) { | |
316 | if (hw->chip_id == CHIP_ID_YUKON_FE) { | |
317 | /* enable automatic crossover */ | |
318 | ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1; | |
319 | } else { | |
320 | /* disable energy detect */ | |
321 | ctrl &= ~PHY_M_PC_EN_DET_MSK; | |
322 | ||
323 | /* enable automatic crossover */ | |
324 | ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO); | |
325 | ||
326 | if (sky2->autoneg == AUTONEG_ENABLE && | |
327 | hw->chip_id == CHIP_ID_YUKON_XL) { | |
328 | ctrl &= ~PHY_M_PC_DSC_MSK; | |
329 | ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA; | |
330 | } | |
331 | } | |
332 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); | |
333 | } else { | |
334 | /* workaround for deviation #4.88 (CRC errors) */ | |
335 | /* disable Automatic Crossover */ | |
336 | ||
337 | ctrl &= ~PHY_M_PC_MDIX_MSK; | |
338 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); | |
339 | ||
340 | if (hw->chip_id == CHIP_ID_YUKON_XL) { | |
341 | /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */ | |
342 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2); | |
343 | ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
344 | ctrl &= ~PHY_M_MAC_MD_MSK; | |
345 | ctrl |= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX); | |
346 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); | |
347 | ||
348 | /* select page 1 to access Fiber registers */ | |
349 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 1); | |
350 | } | |
cd28ab6a SH |
351 | } |
352 | ||
353 | ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); | |
354 | if (sky2->autoneg == AUTONEG_DISABLE) | |
355 | ctrl &= ~PHY_CT_ANE; | |
356 | else | |
357 | ctrl |= PHY_CT_ANE; | |
358 | ||
359 | ctrl |= PHY_CT_RESET; | |
360 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
361 | ||
362 | ctrl = 0; | |
363 | ct1000 = 0; | |
364 | adv = PHY_AN_CSMA; | |
365 | ||
366 | if (sky2->autoneg == AUTONEG_ENABLE) { | |
367 | if (hw->copper) { | |
368 | if (sky2->advertising & ADVERTISED_1000baseT_Full) | |
369 | ct1000 |= PHY_M_1000C_AFD; | |
370 | if (sky2->advertising & ADVERTISED_1000baseT_Half) | |
371 | ct1000 |= PHY_M_1000C_AHD; | |
372 | if (sky2->advertising & ADVERTISED_100baseT_Full) | |
373 | adv |= PHY_M_AN_100_FD; | |
374 | if (sky2->advertising & ADVERTISED_100baseT_Half) | |
375 | adv |= PHY_M_AN_100_HD; | |
376 | if (sky2->advertising & ADVERTISED_10baseT_Full) | |
377 | adv |= PHY_M_AN_10_FD; | |
378 | if (sky2->advertising & ADVERTISED_10baseT_Half) | |
379 | adv |= PHY_M_AN_10_HD; | |
793b883e | 380 | } else /* special defines for FIBER (88E1011S only) */ |
cd28ab6a SH |
381 | adv |= PHY_M_AN_1000X_AHD | PHY_M_AN_1000X_AFD; |
382 | ||
383 | /* Set Flow-control capabilities */ | |
384 | if (sky2->tx_pause && sky2->rx_pause) | |
793b883e | 385 | adv |= PHY_AN_PAUSE_CAP; /* symmetric */ |
cd28ab6a | 386 | else if (sky2->rx_pause && !sky2->tx_pause) |
793b883e | 387 | adv |= PHY_AN_PAUSE_ASYM | PHY_AN_PAUSE_CAP; |
cd28ab6a SH |
388 | else if (!sky2->rx_pause && sky2->tx_pause) |
389 | adv |= PHY_AN_PAUSE_ASYM; /* local */ | |
390 | ||
391 | /* Restart Auto-negotiation */ | |
392 | ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG; | |
393 | } else { | |
394 | /* forced speed/duplex settings */ | |
395 | ct1000 = PHY_M_1000C_MSE; | |
396 | ||
397 | if (sky2->duplex == DUPLEX_FULL) | |
398 | ctrl |= PHY_CT_DUP_MD; | |
399 | ||
400 | switch (sky2->speed) { | |
401 | case SPEED_1000: | |
402 | ctrl |= PHY_CT_SP1000; | |
403 | break; | |
404 | case SPEED_100: | |
405 | ctrl |= PHY_CT_SP100; | |
406 | break; | |
407 | } | |
408 | ||
409 | ctrl |= PHY_CT_RESET; | |
410 | } | |
411 | ||
412 | if (hw->chip_id != CHIP_ID_YUKON_FE) | |
413 | gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000); | |
414 | ||
415 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv); | |
416 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
417 | ||
418 | /* Setup Phy LED's */ | |
419 | ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS); | |
420 | ledover = 0; | |
421 | ||
422 | switch (hw->chip_id) { | |
423 | case CHIP_ID_YUKON_FE: | |
424 | /* on 88E3082 these bits are at 11..9 (shifted left) */ | |
425 | ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1; | |
426 | ||
427 | ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR); | |
428 | ||
429 | /* delete ACT LED control bits */ | |
430 | ctrl &= ~PHY_M_FELP_LED1_MSK; | |
431 | /* change ACT LED control to blink mode */ | |
432 | ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL); | |
433 | gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl); | |
434 | break; | |
435 | ||
436 | case CHIP_ID_YUKON_XL: | |
793b883e | 437 | pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); |
cd28ab6a SH |
438 | |
439 | /* select page 3 to access LED control register */ | |
440 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
441 | ||
442 | /* set LED Function Control register */ | |
793b883e SH |
443 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */ |
444 | PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */ | |
445 | PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */ | |
446 | PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */ | |
cd28ab6a SH |
447 | |
448 | /* set Polarity Control register */ | |
449 | gm_phy_write(hw, port, PHY_MARV_PHY_STAT, | |
793b883e SH |
450 | (PHY_M_POLC_LS1_P_MIX(4) | |
451 | PHY_M_POLC_IS0_P_MIX(4) | | |
452 | PHY_M_POLC_LOS_CTRL(2) | | |
453 | PHY_M_POLC_INIT_CTRL(2) | | |
454 | PHY_M_POLC_STA1_CTRL(2) | | |
455 | PHY_M_POLC_STA0_CTRL(2))); | |
cd28ab6a SH |
456 | |
457 | /* restore page register */ | |
793b883e | 458 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); |
cd28ab6a SH |
459 | break; |
460 | ||
461 | default: | |
462 | /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */ | |
463 | ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL; | |
464 | /* turn off the Rx LED (LED_RX) */ | |
465 | ledover |= PHY_M_LED_MO_RX(MO_LED_OFF); | |
466 | } | |
467 | ||
468 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl); | |
469 | ||
470 | if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) { | |
471 | /* turn on 100 Mbps LED (LED_LINK100) */ | |
472 | ledover |= PHY_M_LED_MO_100(MO_LED_ON); | |
473 | } | |
474 | ||
475 | if (ledover) | |
476 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover); | |
477 | ||
d571b694 | 478 | /* Enable phy interrupt on auto-negotiation complete (or link up) */ |
cd28ab6a SH |
479 | if (sky2->autoneg == AUTONEG_ENABLE) |
480 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL); | |
481 | else | |
482 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK); | |
483 | } | |
484 | ||
1b537565 SH |
485 | /* Force a renegotiation */ |
486 | static void sky2_phy_reinit(struct sky2_port *sky2) | |
487 | { | |
488 | down(&sky2->phy_sema); | |
489 | sky2_phy_init(sky2->hw, sky2->port); | |
490 | up(&sky2->phy_sema); | |
491 | } | |
492 | ||
cd28ab6a SH |
493 | static void sky2_mac_init(struct sky2_hw *hw, unsigned port) |
494 | { | |
495 | struct sky2_port *sky2 = netdev_priv(hw->dev[port]); | |
496 | u16 reg; | |
497 | int i; | |
498 | const u8 *addr = hw->dev[port]->dev_addr; | |
499 | ||
42eeea01 SH |
500 | sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); |
501 | sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR|GPC_ENA_PAUSE); | |
cd28ab6a SH |
502 | |
503 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); | |
504 | ||
793b883e | 505 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 && port == 1) { |
cd28ab6a SH |
506 | /* WA DEV_472 -- looks like crossed wires on port 2 */ |
507 | /* clear GMAC 1 Control reset */ | |
508 | sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR); | |
509 | do { | |
510 | sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET); | |
511 | sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR); | |
512 | } while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL || | |
513 | gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 || | |
514 | gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0); | |
515 | } | |
516 | ||
cd28ab6a SH |
517 | if (sky2->autoneg == AUTONEG_DISABLE) { |
518 | reg = gma_read16(hw, port, GM_GP_CTRL); | |
519 | reg |= GM_GPCR_AU_ALL_DIS; | |
520 | gma_write16(hw, port, GM_GP_CTRL, reg); | |
521 | gma_read16(hw, port, GM_GP_CTRL); | |
522 | ||
cd28ab6a SH |
523 | switch (sky2->speed) { |
524 | case SPEED_1000: | |
525 | reg |= GM_GPCR_SPEED_1000; | |
526 | /* fallthru */ | |
527 | case SPEED_100: | |
528 | reg |= GM_GPCR_SPEED_100; | |
529 | } | |
530 | ||
531 | if (sky2->duplex == DUPLEX_FULL) | |
532 | reg |= GM_GPCR_DUP_FULL; | |
533 | } else | |
534 | reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL; | |
535 | ||
536 | if (!sky2->tx_pause && !sky2->rx_pause) { | |
537 | sky2_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); | |
793b883e SH |
538 | reg |= |
539 | GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; | |
540 | } else if (sky2->tx_pause && !sky2->rx_pause) { | |
cd28ab6a SH |
541 | /* disable Rx flow-control */ |
542 | reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; | |
543 | } | |
544 | ||
545 | gma_write16(hw, port, GM_GP_CTRL, reg); | |
546 | ||
793b883e | 547 | sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC)); |
cd28ab6a | 548 | |
91c86df5 | 549 | down(&sky2->phy_sema); |
cd28ab6a | 550 | sky2_phy_init(hw, port); |
91c86df5 | 551 | up(&sky2->phy_sema); |
cd28ab6a SH |
552 | |
553 | /* MIB clear */ | |
554 | reg = gma_read16(hw, port, GM_PHY_ADDR); | |
555 | gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR); | |
556 | ||
557 | for (i = 0; i < GM_MIB_CNT_SIZE; i++) | |
793b883e | 558 | gma_read16(hw, port, GM_MIB_CNT_BASE + 8 * i); |
cd28ab6a SH |
559 | gma_write16(hw, port, GM_PHY_ADDR, reg); |
560 | ||
561 | /* transmit control */ | |
562 | gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF)); | |
563 | ||
564 | /* receive control reg: unicast + multicast + no FCS */ | |
565 | gma_write16(hw, port, GM_RX_CTRL, | |
793b883e | 566 | GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA); |
cd28ab6a SH |
567 | |
568 | /* transmit flow control */ | |
569 | gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff); | |
570 | ||
571 | /* transmit parameter */ | |
572 | gma_write16(hw, port, GM_TX_PARAM, | |
573 | TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) | | |
574 | TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) | | |
575 | TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) | | |
576 | TX_BACK_OFF_LIM(TX_BOF_LIM_DEF)); | |
577 | ||
578 | /* serial mode register */ | |
579 | reg = DATA_BLIND_VAL(DATA_BLIND_DEF) | | |
6b1a3aef | 580 | GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); |
cd28ab6a | 581 | |
6b1a3aef | 582 | if (hw->dev[port]->mtu > ETH_DATA_LEN) |
cd28ab6a SH |
583 | reg |= GM_SMOD_JUMBO_ENA; |
584 | ||
585 | gma_write16(hw, port, GM_SERIAL_MODE, reg); | |
586 | ||
cd28ab6a SH |
587 | /* virtual address for data */ |
588 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr); | |
589 | ||
793b883e SH |
590 | /* physical address: used for pause frames */ |
591 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr); | |
592 | ||
593 | /* ignore counter overflows */ | |
cd28ab6a SH |
594 | gma_write16(hw, port, GM_TX_IRQ_MSK, 0); |
595 | gma_write16(hw, port, GM_RX_IRQ_MSK, 0); | |
596 | gma_write16(hw, port, GM_TR_IRQ_MSK, 0); | |
597 | ||
598 | /* Configure Rx MAC FIFO */ | |
599 | sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR); | |
793b883e | 600 | sky2_write16(hw, SK_REG(port, RX_GMF_CTRL_T), |
d1f13708 | 601 | GMF_RX_CTRL_DEF); |
cd28ab6a | 602 | |
d571b694 | 603 | /* Flush Rx MAC FIFO on any flow control or error */ |
42eeea01 | 604 | sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR); |
cd28ab6a | 605 | |
793b883e SH |
606 | /* Set threshold to 0xa (64 bytes) |
607 | * ASF disabled so no need to do WA dev #4.30 | |
cd28ab6a SH |
608 | */ |
609 | sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF); | |
610 | ||
611 | /* Configure Tx MAC FIFO */ | |
612 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR); | |
613 | sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON); | |
5a5b1ea0 SH |
614 | |
615 | if (hw->chip_id == CHIP_ID_YUKON_EC_U) { | |
616 | sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8); | |
617 | sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8); | |
618 | if (hw->dev[port]->mtu > ETH_DATA_LEN) { | |
619 | /* set Tx GMAC FIFO Almost Empty Threshold */ | |
620 | sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR), 0x180); | |
621 | /* Disable Store & Forward mode for TX */ | |
622 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_DIS); | |
623 | } | |
624 | } | |
625 | ||
cd28ab6a SH |
626 | } |
627 | ||
628 | static void sky2_ramset(struct sky2_hw *hw, u16 q, u32 start, size_t len) | |
629 | { | |
630 | u32 end; | |
631 | ||
632 | start /= 8; | |
633 | len /= 8; | |
634 | end = start + len - 1; | |
793b883e | 635 | |
cd28ab6a SH |
636 | sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR); |
637 | sky2_write32(hw, RB_ADDR(q, RB_START), start); | |
638 | sky2_write32(hw, RB_ADDR(q, RB_END), end); | |
639 | sky2_write32(hw, RB_ADDR(q, RB_WP), start); | |
640 | sky2_write32(hw, RB_ADDR(q, RB_RP), start); | |
641 | ||
642 | if (q == Q_R1 || q == Q_R2) { | |
793b883e SH |
643 | u32 rxup, rxlo; |
644 | ||
645 | rxlo = len/2; | |
646 | rxup = rxlo + len/4; | |
793b883e | 647 | |
cd28ab6a | 648 | /* Set thresholds on receive queue's */ |
793b883e SH |
649 | sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), rxup); |
650 | sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), rxlo); | |
cd28ab6a SH |
651 | } else { |
652 | /* Enable store & forward on Tx queue's because | |
653 | * Tx FIFO is only 1K on Yukon | |
654 | */ | |
655 | sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD); | |
656 | } | |
657 | ||
658 | sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD); | |
793b883e | 659 | sky2_read8(hw, RB_ADDR(q, RB_CTRL)); |
cd28ab6a SH |
660 | } |
661 | ||
cd28ab6a | 662 | /* Setup Bus Memory Interface */ |
af4ed7e6 | 663 | static void sky2_qset(struct sky2_hw *hw, u16 q) |
cd28ab6a SH |
664 | { |
665 | sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET); | |
666 | sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT); | |
667 | sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON); | |
af4ed7e6 | 668 | sky2_write32(hw, Q_ADDR(q, Q_WM), BMU_WM_DEFAULT); |
cd28ab6a SH |
669 | } |
670 | ||
cd28ab6a SH |
671 | /* Setup prefetch unit registers. This is the interface between |
672 | * hardware and driver list elements | |
673 | */ | |
8cc048e3 | 674 | static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr, |
cd28ab6a SH |
675 | u64 addr, u32 last) |
676 | { | |
cd28ab6a SH |
677 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET); |
678 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR); | |
679 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), addr >> 32); | |
680 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), (u32) addr); | |
681 | sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last); | |
682 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON); | |
793b883e SH |
683 | |
684 | sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL)); | |
cd28ab6a SH |
685 | } |
686 | ||
793b883e SH |
687 | static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2) |
688 | { | |
689 | struct sky2_tx_le *le = sky2->tx_le + sky2->tx_prod; | |
690 | ||
691 | sky2->tx_prod = (sky2->tx_prod + 1) % TX_RING_SIZE; | |
692 | return le; | |
693 | } | |
cd28ab6a SH |
694 | |
695 | /* | |
d571b694 | 696 | * This is a workaround code taken from SysKonnect sk98lin driver |
793b883e | 697 | * to deal with chip bug on Yukon EC rev 0 in the wraparound case. |
cd28ab6a SH |
698 | */ |
699 | static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, | |
700 | u16 idx, u16 *last, u16 size) | |
cd28ab6a | 701 | { |
cd28ab6a SH |
702 | if (is_ec_a1(hw) && idx < *last) { |
703 | u16 hwget = sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_GET_IDX)); | |
704 | ||
705 | if (hwget == 0) { | |
706 | /* Start prefetching again */ | |
793b883e | 707 | sky2_write8(hw, Y2_QADDR(q, PREF_UNIT_FIFO_WM), 0xe0); |
cd28ab6a SH |
708 | goto setnew; |
709 | } | |
710 | ||
793b883e | 711 | if (hwget == size - 1) { |
cd28ab6a SH |
712 | /* set watermark to one list element */ |
713 | sky2_write8(hw, Y2_QADDR(q, PREF_UNIT_FIFO_WM), 8); | |
714 | ||
715 | /* set put index to first list element */ | |
716 | sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), 0); | |
793b883e SH |
717 | } else /* have hardware go to end of list */ |
718 | sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), | |
719 | size - 1); | |
cd28ab6a | 720 | } else { |
793b883e | 721 | setnew: |
cd28ab6a | 722 | sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx); |
cd28ab6a | 723 | } |
bea86103 | 724 | *last = idx; |
cd28ab6a SH |
725 | } |
726 | ||
793b883e | 727 | |
cd28ab6a SH |
728 | static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2) |
729 | { | |
730 | struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put; | |
731 | sky2->rx_put = (sky2->rx_put + 1) % RX_LE_SIZE; | |
732 | return le; | |
733 | } | |
734 | ||
a018e330 SH |
735 | /* Return high part of DMA address (could be 32 or 64 bit) */ |
736 | static inline u32 high32(dma_addr_t a) | |
737 | { | |
738 | return (a >> 16) >> 16; | |
739 | } | |
740 | ||
793b883e | 741 | /* Build description to hardware about buffer */ |
734d1868 | 742 | static inline void sky2_rx_add(struct sky2_port *sky2, dma_addr_t map) |
cd28ab6a SH |
743 | { |
744 | struct sky2_rx_le *le; | |
734d1868 SH |
745 | u32 hi = high32(map); |
746 | u16 len = sky2->rx_bufsize; | |
cd28ab6a | 747 | |
793b883e | 748 | if (sky2->rx_addr64 != hi) { |
cd28ab6a | 749 | le = sky2_next_rx(sky2); |
793b883e | 750 | le->addr = cpu_to_le32(hi); |
cd28ab6a SH |
751 | le->ctrl = 0; |
752 | le->opcode = OP_ADDR64 | HW_OWNER; | |
734d1868 | 753 | sky2->rx_addr64 = high32(map + len); |
cd28ab6a | 754 | } |
793b883e | 755 | |
cd28ab6a | 756 | le = sky2_next_rx(sky2); |
734d1868 SH |
757 | le->addr = cpu_to_le32((u32) map); |
758 | le->length = cpu_to_le16(len); | |
cd28ab6a SH |
759 | le->ctrl = 0; |
760 | le->opcode = OP_PACKET | HW_OWNER; | |
761 | } | |
762 | ||
793b883e | 763 | |
cd28ab6a SH |
764 | /* Tell chip where to start receive checksum. |
765 | * Actually has two checksums, but set both same to avoid possible byte | |
766 | * order problems. | |
767 | */ | |
793b883e | 768 | static void rx_set_checksum(struct sky2_port *sky2) |
cd28ab6a SH |
769 | { |
770 | struct sky2_rx_le *le; | |
771 | ||
cd28ab6a | 772 | le = sky2_next_rx(sky2); |
793b883e | 773 | le->addr = (ETH_HLEN << 16) | ETH_HLEN; |
cd28ab6a SH |
774 | le->ctrl = 0; |
775 | le->opcode = OP_TCPSTART | HW_OWNER; | |
793b883e | 776 | |
793b883e SH |
777 | sky2_write32(sky2->hw, |
778 | Q_ADDR(rxqaddr[sky2->port], Q_CSR), | |
779 | sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM); | |
cd28ab6a SH |
780 | |
781 | } | |
782 | ||
6b1a3aef SH |
783 | /* |
784 | * The RX Stop command will not work for Yukon-2 if the BMU does not | |
785 | * reach the end of packet and since we can't make sure that we have | |
786 | * incoming data, we must reset the BMU while it is not doing a DMA | |
787 | * transfer. Since it is possible that the RX path is still active, | |
788 | * the RX RAM buffer will be stopped first, so any possible incoming | |
789 | * data will not trigger a DMA. After the RAM buffer is stopped, the | |
790 | * BMU is polled until any DMA in progress is ended and only then it | |
791 | * will be reset. | |
792 | */ | |
793 | static void sky2_rx_stop(struct sky2_port *sky2) | |
794 | { | |
795 | struct sky2_hw *hw = sky2->hw; | |
796 | unsigned rxq = rxqaddr[sky2->port]; | |
797 | int i; | |
798 | ||
799 | /* disable the RAM Buffer receive queue */ | |
800 | sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD); | |
801 | ||
802 | for (i = 0; i < 0xffff; i++) | |
803 | if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL)) | |
804 | == sky2_read8(hw, RB_ADDR(rxq, Q_RL))) | |
805 | goto stopped; | |
806 | ||
807 | printk(KERN_WARNING PFX "%s: receiver stop failed\n", | |
808 | sky2->netdev->name); | |
809 | stopped: | |
810 | sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST); | |
811 | ||
812 | /* reset the Rx prefetch unit */ | |
813 | sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET); | |
814 | } | |
793b883e | 815 | |
d571b694 | 816 | /* Clean out receive buffer area, assumes receiver hardware stopped */ |
cd28ab6a SH |
817 | static void sky2_rx_clean(struct sky2_port *sky2) |
818 | { | |
819 | unsigned i; | |
820 | ||
821 | memset(sky2->rx_le, 0, RX_LE_BYTES); | |
793b883e | 822 | for (i = 0; i < sky2->rx_pending; i++) { |
cd28ab6a SH |
823 | struct ring_info *re = sky2->rx_ring + i; |
824 | ||
825 | if (re->skb) { | |
793b883e | 826 | pci_unmap_single(sky2->hw->pdev, |
734d1868 | 827 | re->mapaddr, sky2->rx_bufsize, |
cd28ab6a SH |
828 | PCI_DMA_FROMDEVICE); |
829 | kfree_skb(re->skb); | |
830 | re->skb = NULL; | |
831 | } | |
832 | } | |
833 | } | |
834 | ||
ef743d33 SH |
835 | /* Basic MII support */ |
836 | static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
837 | { | |
838 | struct mii_ioctl_data *data = if_mii(ifr); | |
839 | struct sky2_port *sky2 = netdev_priv(dev); | |
840 | struct sky2_hw *hw = sky2->hw; | |
841 | int err = -EOPNOTSUPP; | |
842 | ||
843 | if (!netif_running(dev)) | |
844 | return -ENODEV; /* Phy still in reset */ | |
845 | ||
846 | switch(cmd) { | |
847 | case SIOCGMIIPHY: | |
848 | data->phy_id = PHY_ADDR_MARV; | |
849 | ||
850 | /* fallthru */ | |
851 | case SIOCGMIIREG: { | |
852 | u16 val = 0; | |
91c86df5 SH |
853 | |
854 | down(&sky2->phy_sema); | |
ef743d33 | 855 | err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val); |
91c86df5 SH |
856 | up(&sky2->phy_sema); |
857 | ||
ef743d33 SH |
858 | data->val_out = val; |
859 | break; | |
860 | } | |
861 | ||
862 | case SIOCSMIIREG: | |
863 | if (!capable(CAP_NET_ADMIN)) | |
864 | return -EPERM; | |
865 | ||
91c86df5 | 866 | down(&sky2->phy_sema); |
ef743d33 SH |
867 | err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f, |
868 | data->val_in); | |
91c86df5 | 869 | up(&sky2->phy_sema); |
ef743d33 SH |
870 | break; |
871 | } | |
872 | return err; | |
873 | } | |
874 | ||
d1f13708 SH |
875 | #ifdef SKY2_VLAN_TAG_USED |
876 | static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) | |
877 | { | |
878 | struct sky2_port *sky2 = netdev_priv(dev); | |
879 | struct sky2_hw *hw = sky2->hw; | |
880 | u16 port = sky2->port; | |
d1f13708 | 881 | |
f2e46561 | 882 | spin_lock(&sky2->tx_lock); |
d1f13708 SH |
883 | |
884 | sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_ON); | |
885 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_ON); | |
886 | sky2->vlgrp = grp; | |
887 | ||
f2e46561 | 888 | spin_unlock(&sky2->tx_lock); |
d1f13708 SH |
889 | } |
890 | ||
891 | static void sky2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
892 | { | |
893 | struct sky2_port *sky2 = netdev_priv(dev); | |
894 | struct sky2_hw *hw = sky2->hw; | |
895 | u16 port = sky2->port; | |
d1f13708 | 896 | |
f2e46561 | 897 | spin_lock(&sky2->tx_lock); |
d1f13708 SH |
898 | |
899 | sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_OFF); | |
900 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_OFF); | |
901 | if (sky2->vlgrp) | |
902 | sky2->vlgrp->vlan_devices[vid] = NULL; | |
903 | ||
f2e46561 | 904 | spin_unlock(&sky2->tx_lock); |
d1f13708 SH |
905 | } |
906 | #endif | |
907 | ||
82788c7a SH |
908 | /* |
909 | * It appears the hardware has a bug in the FIFO logic that | |
910 | * cause it to hang if the FIFO gets overrun and the receive buffer | |
911 | * is not aligned. ALso alloc_skb() won't align properly if slab | |
912 | * debugging is enabled. | |
913 | */ | |
914 | static inline struct sk_buff *sky2_alloc_skb(unsigned int size, gfp_t gfp_mask) | |
915 | { | |
916 | struct sk_buff *skb; | |
917 | ||
918 | skb = alloc_skb(size + RX_SKB_ALIGN, gfp_mask); | |
919 | if (likely(skb)) { | |
920 | unsigned long p = (unsigned long) skb->data; | |
921 | skb_reserve(skb, | |
922 | ((p + RX_SKB_ALIGN - 1) & ~(RX_SKB_ALIGN - 1)) - p); | |
923 | } | |
924 | ||
925 | return skb; | |
926 | } | |
927 | ||
cd28ab6a SH |
928 | /* |
929 | * Allocate and setup receiver buffer pool. | |
930 | * In case of 64 bit dma, there are 2X as many list elements | |
931 | * available as ring entries | |
932 | * and need to reserve one list element so we don't wrap around. | |
933 | */ | |
6b1a3aef | 934 | static int sky2_rx_start(struct sky2_port *sky2) |
cd28ab6a | 935 | { |
6b1a3aef | 936 | struct sky2_hw *hw = sky2->hw; |
6b1a3aef SH |
937 | unsigned rxq = rxqaddr[sky2->port]; |
938 | int i; | |
cd28ab6a | 939 | |
6b1a3aef | 940 | sky2->rx_put = sky2->rx_next = 0; |
af4ed7e6 | 941 | sky2_qset(hw, rxq); |
6b1a3aef SH |
942 | sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1); |
943 | ||
944 | rx_set_checksum(sky2); | |
793b883e | 945 | for (i = 0; i < sky2->rx_pending; i++) { |
cd28ab6a | 946 | struct ring_info *re = sky2->rx_ring + i; |
cd28ab6a | 947 | |
82788c7a | 948 | re->skb = sky2_alloc_skb(sky2->rx_bufsize, GFP_KERNEL); |
cd28ab6a SH |
949 | if (!re->skb) |
950 | goto nomem; | |
951 | ||
6b1a3aef | 952 | re->mapaddr = pci_map_single(hw->pdev, re->skb->data, |
734d1868 SH |
953 | sky2->rx_bufsize, PCI_DMA_FROMDEVICE); |
954 | sky2_rx_add(sky2, re->mapaddr); | |
cd28ab6a SH |
955 | } |
956 | ||
6b1a3aef SH |
957 | /* Tell chip about available buffers */ |
958 | sky2_write16(hw, Y2_QADDR(rxq, PREF_UNIT_PUT_IDX), sky2->rx_put); | |
959 | sky2->rx_last_put = sky2_read16(hw, Y2_QADDR(rxq, PREF_UNIT_PUT_IDX)); | |
cd28ab6a SH |
960 | return 0; |
961 | nomem: | |
962 | sky2_rx_clean(sky2); | |
963 | return -ENOMEM; | |
964 | } | |
965 | ||
966 | /* Bring up network interface. */ | |
967 | static int sky2_up(struct net_device *dev) | |
968 | { | |
969 | struct sky2_port *sky2 = netdev_priv(dev); | |
970 | struct sky2_hw *hw = sky2->hw; | |
971 | unsigned port = sky2->port; | |
972 | u32 ramsize, rxspace; | |
973 | int err = -ENOMEM; | |
974 | ||
975 | if (netif_msg_ifup(sky2)) | |
976 | printk(KERN_INFO PFX "%s: enabling interface\n", dev->name); | |
977 | ||
978 | /* must be power of 2 */ | |
979 | sky2->tx_le = pci_alloc_consistent(hw->pdev, | |
793b883e SH |
980 | TX_RING_SIZE * |
981 | sizeof(struct sky2_tx_le), | |
cd28ab6a SH |
982 | &sky2->tx_le_map); |
983 | if (!sky2->tx_le) | |
984 | goto err_out; | |
985 | ||
6cdbbdf3 | 986 | sky2->tx_ring = kcalloc(TX_RING_SIZE, sizeof(struct tx_ring_info), |
cd28ab6a SH |
987 | GFP_KERNEL); |
988 | if (!sky2->tx_ring) | |
989 | goto err_out; | |
990 | sky2->tx_prod = sky2->tx_cons = 0; | |
cd28ab6a SH |
991 | |
992 | sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES, | |
993 | &sky2->rx_le_map); | |
994 | if (!sky2->rx_le) | |
995 | goto err_out; | |
996 | memset(sky2->rx_le, 0, RX_LE_BYTES); | |
997 | ||
6cdbbdf3 | 998 | sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct ring_info), |
cd28ab6a SH |
999 | GFP_KERNEL); |
1000 | if (!sky2->rx_ring) | |
1001 | goto err_out; | |
1002 | ||
1003 | sky2_mac_init(hw, port); | |
1004 | ||
1005 | /* Configure RAM buffers */ | |
1006 | if (hw->chip_id == CHIP_ID_YUKON_FE || | |
1007 | (hw->chip_id == CHIP_ID_YUKON_EC && hw->chip_rev == 2)) | |
1008 | ramsize = 4096; | |
1009 | else { | |
793b883e SH |
1010 | u8 e0 = sky2_read8(hw, B2_E_0); |
1011 | ramsize = (e0 == 0) ? (128 * 1024) : (e0 * 4096); | |
cd28ab6a SH |
1012 | } |
1013 | ||
1014 | /* 2/3 for Rx */ | |
1015 | rxspace = (2 * ramsize) / 3; | |
1016 | sky2_ramset(hw, rxqaddr[port], 0, rxspace); | |
1017 | sky2_ramset(hw, txqaddr[port], rxspace, ramsize - rxspace); | |
1018 | ||
793b883e SH |
1019 | /* Make sure SyncQ is disabled */ |
1020 | sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL), | |
1021 | RB_RST_SET); | |
1022 | ||
af4ed7e6 | 1023 | sky2_qset(hw, txqaddr[port]); |
5a5b1ea0 SH |
1024 | if (hw->chip_id == CHIP_ID_YUKON_EC_U) |
1025 | sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), 0x1a0); | |
1026 | ||
1027 | ||
6b1a3aef SH |
1028 | sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map, |
1029 | TX_RING_SIZE - 1); | |
cd28ab6a | 1030 | |
6b1a3aef | 1031 | err = sky2_rx_start(sky2); |
cd28ab6a SH |
1032 | if (err) |
1033 | goto err_out; | |
1034 | ||
cd28ab6a SH |
1035 | /* Enable interrupts from phy/mac for port */ |
1036 | hw->intr_mask |= (port == 0) ? Y2_IS_PORT_1 : Y2_IS_PORT_2; | |
1037 | sky2_write32(hw, B0_IMSK, hw->intr_mask); | |
1038 | return 0; | |
1039 | ||
1040 | err_out: | |
1b537565 | 1041 | if (sky2->rx_le) { |
cd28ab6a SH |
1042 | pci_free_consistent(hw->pdev, RX_LE_BYTES, |
1043 | sky2->rx_le, sky2->rx_le_map); | |
1b537565 SH |
1044 | sky2->rx_le = NULL; |
1045 | } | |
1046 | if (sky2->tx_le) { | |
cd28ab6a SH |
1047 | pci_free_consistent(hw->pdev, |
1048 | TX_RING_SIZE * sizeof(struct sky2_tx_le), | |
1049 | sky2->tx_le, sky2->tx_le_map); | |
1b537565 SH |
1050 | sky2->tx_le = NULL; |
1051 | } | |
1052 | kfree(sky2->tx_ring); | |
1053 | kfree(sky2->rx_ring); | |
cd28ab6a | 1054 | |
1b537565 SH |
1055 | sky2->tx_ring = NULL; |
1056 | sky2->rx_ring = NULL; | |
cd28ab6a SH |
1057 | return err; |
1058 | } | |
1059 | ||
793b883e SH |
1060 | /* Modular subtraction in ring */ |
1061 | static inline int tx_dist(unsigned tail, unsigned head) | |
1062 | { | |
129372d0 | 1063 | return (head - tail) % TX_RING_SIZE; |
793b883e | 1064 | } |
cd28ab6a | 1065 | |
793b883e SH |
1066 | /* Number of list elements available for next tx */ |
1067 | static inline int tx_avail(const struct sky2_port *sky2) | |
cd28ab6a | 1068 | { |
793b883e | 1069 | return sky2->tx_pending - tx_dist(sky2->tx_cons, sky2->tx_prod); |
cd28ab6a SH |
1070 | } |
1071 | ||
793b883e SH |
1072 | /* Estimate of number of transmit list elements required */ |
1073 | static inline unsigned tx_le_req(const struct sk_buff *skb) | |
cd28ab6a | 1074 | { |
793b883e SH |
1075 | unsigned count; |
1076 | ||
1077 | count = sizeof(dma_addr_t) / sizeof(u32); | |
1078 | count += skb_shinfo(skb)->nr_frags * count; | |
1079 | ||
1080 | if (skb_shinfo(skb)->tso_size) | |
1081 | ++count; | |
1082 | ||
0e3ff6aa | 1083 | if (skb->ip_summed == CHECKSUM_HW) |
793b883e SH |
1084 | ++count; |
1085 | ||
1086 | return count; | |
cd28ab6a SH |
1087 | } |
1088 | ||
793b883e SH |
1089 | /* |
1090 | * Put one packet in ring for transmit. | |
1091 | * A single packet can generate multiple list elements, and | |
1092 | * the number of ring elements will probably be less than the number | |
1093 | * of list elements used. | |
f2e46561 SH |
1094 | * |
1095 | * No BH disabling for tx_lock here (like tg3) | |
793b883e | 1096 | */ |
cd28ab6a SH |
1097 | static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev) |
1098 | { | |
1099 | struct sky2_port *sky2 = netdev_priv(dev); | |
1100 | struct sky2_hw *hw = sky2->hw; | |
d1f13708 | 1101 | struct sky2_tx_le *le = NULL; |
6cdbbdf3 | 1102 | struct tx_ring_info *re; |
cd28ab6a SH |
1103 | unsigned i, len; |
1104 | dma_addr_t mapping; | |
1105 | u32 addr64; | |
1106 | u16 mss; | |
1107 | u8 ctrl; | |
1108 | ||
f2e46561 | 1109 | if (!spin_trylock(&sky2->tx_lock)) |
cd28ab6a SH |
1110 | return NETDEV_TX_LOCKED; |
1111 | ||
793b883e | 1112 | if (unlikely(tx_avail(sky2) < tx_le_req(skb))) { |
8c463ef7 SH |
1113 | /* There is a known but harmless race with lockless tx |
1114 | * and netif_stop_queue. | |
1115 | */ | |
1116 | if (!netif_queue_stopped(dev)) { | |
1117 | netif_stop_queue(dev); | |
1118 | printk(KERN_WARNING PFX "%s: ring full when queue awake!\n", | |
1119 | dev->name); | |
1120 | } | |
f2e46561 | 1121 | spin_unlock(&sky2->tx_lock); |
cd28ab6a | 1122 | |
cd28ab6a SH |
1123 | return NETDEV_TX_BUSY; |
1124 | } | |
1125 | ||
793b883e | 1126 | if (unlikely(netif_msg_tx_queued(sky2))) |
cd28ab6a SH |
1127 | printk(KERN_DEBUG "%s: tx queued, slot %u, len %d\n", |
1128 | dev->name, sky2->tx_prod, skb->len); | |
1129 | ||
cd28ab6a SH |
1130 | len = skb_headlen(skb); |
1131 | mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
a018e330 | 1132 | addr64 = high32(mapping); |
793b883e SH |
1133 | |
1134 | re = sky2->tx_ring + sky2->tx_prod; | |
1135 | ||
a018e330 SH |
1136 | /* Send high bits if changed or crosses boundary */ |
1137 | if (addr64 != sky2->tx_addr64 || high32(mapping + len) != sky2->tx_addr64) { | |
793b883e SH |
1138 | le = get_tx_le(sky2); |
1139 | le->tx.addr = cpu_to_le32(addr64); | |
1140 | le->ctrl = 0; | |
1141 | le->opcode = OP_ADDR64 | HW_OWNER; | |
a018e330 | 1142 | sky2->tx_addr64 = high32(mapping + len); |
793b883e | 1143 | } |
cd28ab6a SH |
1144 | |
1145 | /* Check for TCP Segmentation Offload */ | |
1146 | mss = skb_shinfo(skb)->tso_size; | |
793b883e | 1147 | if (mss != 0) { |
cd28ab6a SH |
1148 | /* just drop the packet if non-linear expansion fails */ |
1149 | if (skb_header_cloned(skb) && | |
1150 | pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) { | |
793b883e SH |
1151 | dev_kfree_skb_any(skb); |
1152 | goto out_unlock; | |
cd28ab6a SH |
1153 | } |
1154 | ||
1155 | mss += ((skb->h.th->doff - 5) * 4); /* TCP options */ | |
1156 | mss += (skb->nh.iph->ihl * 4) + sizeof(struct tcphdr); | |
1157 | mss += ETH_HLEN; | |
793b883e | 1158 | } |
cd28ab6a | 1159 | |
793b883e | 1160 | if (mss != sky2->tx_last_mss) { |
cd28ab6a SH |
1161 | le = get_tx_le(sky2); |
1162 | le->tx.tso.size = cpu_to_le16(mss); | |
793b883e | 1163 | le->tx.tso.rsvd = 0; |
cd28ab6a | 1164 | le->opcode = OP_LRGLEN | HW_OWNER; |
cd28ab6a | 1165 | le->ctrl = 0; |
793b883e | 1166 | sky2->tx_last_mss = mss; |
cd28ab6a SH |
1167 | } |
1168 | ||
cd28ab6a | 1169 | ctrl = 0; |
d1f13708 SH |
1170 | #ifdef SKY2_VLAN_TAG_USED |
1171 | /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */ | |
1172 | if (sky2->vlgrp && vlan_tx_tag_present(skb)) { | |
1173 | if (!le) { | |
1174 | le = get_tx_le(sky2); | |
1175 | le->tx.addr = 0; | |
1176 | le->opcode = OP_VLAN|HW_OWNER; | |
1177 | le->ctrl = 0; | |
1178 | } else | |
1179 | le->opcode |= OP_VLAN; | |
1180 | le->length = cpu_to_be16(vlan_tx_tag_get(skb)); | |
1181 | ctrl |= INS_VLAN; | |
1182 | } | |
1183 | #endif | |
1184 | ||
1185 | /* Handle TCP checksum offload */ | |
cd28ab6a | 1186 | if (skb->ip_summed == CHECKSUM_HW) { |
793b883e SH |
1187 | u16 hdr = skb->h.raw - skb->data; |
1188 | u16 offset = hdr + skb->csum; | |
cd28ab6a SH |
1189 | |
1190 | ctrl = CALSUM | WR_SUM | INIT_SUM | LOCK_SUM; | |
1191 | if (skb->nh.iph->protocol == IPPROTO_UDP) | |
1192 | ctrl |= UDPTCP; | |
1193 | ||
1194 | le = get_tx_le(sky2); | |
1195 | le->tx.csum.start = cpu_to_le16(hdr); | |
793b883e SH |
1196 | le->tx.csum.offset = cpu_to_le16(offset); |
1197 | le->length = 0; /* initial checksum value */ | |
cd28ab6a | 1198 | le->ctrl = 1; /* one packet */ |
793b883e | 1199 | le->opcode = OP_TCPLISW | HW_OWNER; |
cd28ab6a SH |
1200 | } |
1201 | ||
1202 | le = get_tx_le(sky2); | |
1203 | le->tx.addr = cpu_to_le32((u32) mapping); | |
1204 | le->length = cpu_to_le16(len); | |
1205 | le->ctrl = ctrl; | |
793b883e | 1206 | le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER); |
cd28ab6a | 1207 | |
793b883e | 1208 | /* Record the transmit mapping info */ |
cd28ab6a | 1209 | re->skb = skb; |
6cdbbdf3 | 1210 | pci_unmap_addr_set(re, mapaddr, mapping); |
cd28ab6a SH |
1211 | |
1212 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
1213 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
6cdbbdf3 | 1214 | struct tx_ring_info *fre; |
cd28ab6a SH |
1215 | |
1216 | mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset, | |
1217 | frag->size, PCI_DMA_TODEVICE); | |
793b883e SH |
1218 | addr64 = (mapping >> 16) >> 16; |
1219 | if (addr64 != sky2->tx_addr64) { | |
1220 | le = get_tx_le(sky2); | |
1221 | le->tx.addr = cpu_to_le32(addr64); | |
1222 | le->ctrl = 0; | |
1223 | le->opcode = OP_ADDR64 | HW_OWNER; | |
1224 | sky2->tx_addr64 = addr64; | |
cd28ab6a SH |
1225 | } |
1226 | ||
1227 | le = get_tx_le(sky2); | |
1228 | le->tx.addr = cpu_to_le32((u32) mapping); | |
1229 | le->length = cpu_to_le16(frag->size); | |
1230 | le->ctrl = ctrl; | |
793b883e | 1231 | le->opcode = OP_BUFFER | HW_OWNER; |
cd28ab6a | 1232 | |
793b883e SH |
1233 | fre = sky2->tx_ring |
1234 | + ((re - sky2->tx_ring) + i + 1) % TX_RING_SIZE; | |
6cdbbdf3 | 1235 | pci_unmap_addr_set(fre, mapaddr, mapping); |
cd28ab6a | 1236 | } |
6cdbbdf3 | 1237 | |
793b883e | 1238 | re->idx = sky2->tx_prod; |
cd28ab6a SH |
1239 | le->ctrl |= EOP; |
1240 | ||
724bca3c | 1241 | sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod, |
cd28ab6a SH |
1242 | &sky2->tx_last_put, TX_RING_SIZE); |
1243 | ||
0e3ff6aa | 1244 | if (tx_avail(sky2) <= MAX_SKB_TX_LE) |
cd28ab6a | 1245 | netif_stop_queue(dev); |
793b883e SH |
1246 | |
1247 | out_unlock: | |
1248 | mmiowb(); | |
f2e46561 | 1249 | spin_unlock(&sky2->tx_lock); |
cd28ab6a SH |
1250 | |
1251 | dev->trans_start = jiffies; | |
1252 | return NETDEV_TX_OK; | |
1253 | } | |
1254 | ||
cd28ab6a | 1255 | /* |
793b883e SH |
1256 | * Free ring elements from starting at tx_cons until "done" |
1257 | * | |
1258 | * NB: the hardware will tell us about partial completion of multi-part | |
d571b694 | 1259 | * buffers; these are deferred until completion. |
cd28ab6a | 1260 | */ |
d11c13e7 | 1261 | static void sky2_tx_complete(struct sky2_port *sky2, u16 done) |
cd28ab6a | 1262 | { |
d11c13e7 | 1263 | struct net_device *dev = sky2->netdev; |
af2a58ac SH |
1264 | struct pci_dev *pdev = sky2->hw->pdev; |
1265 | u16 nxt, put; | |
793b883e | 1266 | unsigned i; |
cd28ab6a | 1267 | |
0e3ff6aa | 1268 | BUG_ON(done >= TX_RING_SIZE); |
2224795d | 1269 | |
d11c13e7 | 1270 | if (unlikely(netif_msg_tx_done(sky2))) |
d571b694 | 1271 | printk(KERN_DEBUG "%s: tx done, up to %u\n", |
d11c13e7 | 1272 | dev->name, done); |
cd28ab6a | 1273 | |
af2a58ac SH |
1274 | for (put = sky2->tx_cons; put != done; put = nxt) { |
1275 | struct tx_ring_info *re = sky2->tx_ring + put; | |
1276 | struct sk_buff *skb = re->skb; | |
cd28ab6a | 1277 | |
af2a58ac SH |
1278 | nxt = re->idx; |
1279 | BUG_ON(nxt >= TX_RING_SIZE); | |
d70cd51a | 1280 | prefetch(sky2->tx_ring + nxt); |
cd28ab6a | 1281 | |
793b883e | 1282 | /* Check for partial status */ |
af2a58ac SH |
1283 | if (tx_dist(put, done) < tx_dist(put, nxt)) |
1284 | break; | |
793b883e SH |
1285 | |
1286 | skb = re->skb; | |
af2a58ac | 1287 | pci_unmap_single(pdev, pci_unmap_addr(re, mapaddr), |
734d1868 | 1288 | skb_headlen(skb), PCI_DMA_TODEVICE); |
793b883e SH |
1289 | |
1290 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
6cdbbdf3 | 1291 | struct tx_ring_info *fre; |
af2a58ac SH |
1292 | fre = sky2->tx_ring + (put + i + 1) % TX_RING_SIZE; |
1293 | pci_unmap_page(pdev, pci_unmap_addr(fre, mapaddr), | |
1294 | skb_shinfo(skb)->frags[i].size, | |
734d1868 | 1295 | PCI_DMA_TODEVICE); |
cd28ab6a SH |
1296 | } |
1297 | ||
cd28ab6a | 1298 | dev_kfree_skb_any(skb); |
793b883e | 1299 | } |
793b883e | 1300 | |
af2a58ac SH |
1301 | spin_lock(&sky2->tx_lock); |
1302 | sky2->tx_cons = put; | |
793b883e | 1303 | if (netif_queue_stopped(dev) && tx_avail(sky2) > MAX_SKB_TX_LE) |
cd28ab6a SH |
1304 | netif_wake_queue(dev); |
1305 | spin_unlock(&sky2->tx_lock); | |
1306 | } | |
1307 | ||
1308 | /* Cleanup all untransmitted buffers, assume transmitter not running */ | |
13b97b74 | 1309 | static void sky2_tx_clean(struct sky2_port *sky2) |
cd28ab6a | 1310 | { |
d11c13e7 | 1311 | sky2_tx_complete(sky2, sky2->tx_prod); |
cd28ab6a SH |
1312 | } |
1313 | ||
1314 | /* Network shutdown */ | |
1315 | static int sky2_down(struct net_device *dev) | |
1316 | { | |
1317 | struct sky2_port *sky2 = netdev_priv(dev); | |
1318 | struct sky2_hw *hw = sky2->hw; | |
1319 | unsigned port = sky2->port; | |
1320 | u16 ctrl; | |
cd28ab6a | 1321 | |
1b537565 SH |
1322 | /* Never really got started! */ |
1323 | if (!sky2->tx_le) | |
1324 | return 0; | |
1325 | ||
cd28ab6a SH |
1326 | if (netif_msg_ifdown(sky2)) |
1327 | printk(KERN_INFO PFX "%s: disabling interface\n", dev->name); | |
1328 | ||
018d1c66 | 1329 | /* Stop more packets from being queued */ |
cd28ab6a SH |
1330 | netif_stop_queue(dev); |
1331 | ||
018d1c66 SH |
1332 | /* Disable port IRQ */ |
1333 | local_irq_disable(); | |
1334 | hw->intr_mask &= ~((sky2->port == 0) ? Y2_IS_IRQ_PHY1 : Y2_IS_IRQ_PHY2); | |
1335 | sky2_write32(hw, B0_IMSK, hw->intr_mask); | |
1336 | local_irq_enable(); | |
1337 | ||
91c86df5 | 1338 | flush_scheduled_work(); |
018d1c66 | 1339 | |
793b883e SH |
1340 | sky2_phy_reset(hw, port); |
1341 | ||
cd28ab6a SH |
1342 | /* Stop transmitter */ |
1343 | sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP); | |
1344 | sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR)); | |
1345 | ||
1346 | sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), | |
793b883e | 1347 | RB_RST_SET | RB_DIS_OP_MD); |
cd28ab6a SH |
1348 | |
1349 | ctrl = gma_read16(hw, port, GM_GP_CTRL); | |
793b883e | 1350 | ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA); |
cd28ab6a SH |
1351 | gma_write16(hw, port, GM_GP_CTRL, ctrl); |
1352 | ||
1353 | sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); | |
1354 | ||
1355 | /* Workaround shared GMAC reset */ | |
793b883e SH |
1356 | if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 |
1357 | && port == 0 && hw->dev[1] && netif_running(hw->dev[1]))) | |
cd28ab6a SH |
1358 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); |
1359 | ||
1360 | /* Disable Force Sync bit and Enable Alloc bit */ | |
1361 | sky2_write8(hw, SK_REG(port, TXA_CTRL), | |
1362 | TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC); | |
1363 | ||
1364 | /* Stop Interval Timer and Limit Counter of Tx Arbiter */ | |
1365 | sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L); | |
1366 | sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L); | |
1367 | ||
1368 | /* Reset the PCI FIFO of the async Tx queue */ | |
793b883e SH |
1369 | sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), |
1370 | BMU_RST_SET | BMU_FIFO_RST); | |
cd28ab6a SH |
1371 | |
1372 | /* Reset the Tx prefetch units */ | |
1373 | sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL), | |
1374 | PREF_UNIT_RST_SET); | |
1375 | ||
1376 | sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET); | |
1377 | ||
6b1a3aef | 1378 | sky2_rx_stop(sky2); |
cd28ab6a SH |
1379 | |
1380 | sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); | |
1381 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET); | |
1382 | ||
d571b694 | 1383 | /* turn off LED's */ |
cd28ab6a SH |
1384 | sky2_write16(hw, B0_Y2LED, LED_STAT_OFF); |
1385 | ||
018d1c66 SH |
1386 | synchronize_irq(hw->pdev->irq); |
1387 | ||
cd28ab6a SH |
1388 | sky2_tx_clean(sky2); |
1389 | sky2_rx_clean(sky2); | |
1390 | ||
1391 | pci_free_consistent(hw->pdev, RX_LE_BYTES, | |
1392 | sky2->rx_le, sky2->rx_le_map); | |
1393 | kfree(sky2->rx_ring); | |
1394 | ||
1395 | pci_free_consistent(hw->pdev, | |
1396 | TX_RING_SIZE * sizeof(struct sky2_tx_le), | |
1397 | sky2->tx_le, sky2->tx_le_map); | |
1398 | kfree(sky2->tx_ring); | |
1399 | ||
1b537565 SH |
1400 | sky2->tx_le = NULL; |
1401 | sky2->rx_le = NULL; | |
1402 | ||
1403 | sky2->rx_ring = NULL; | |
1404 | sky2->tx_ring = NULL; | |
1405 | ||
cd28ab6a SH |
1406 | return 0; |
1407 | } | |
1408 | ||
1409 | static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux) | |
1410 | { | |
793b883e SH |
1411 | if (!hw->copper) |
1412 | return SPEED_1000; | |
1413 | ||
cd28ab6a SH |
1414 | if (hw->chip_id == CHIP_ID_YUKON_FE) |
1415 | return (aux & PHY_M_PS_SPEED_100) ? SPEED_100 : SPEED_10; | |
1416 | ||
1417 | switch (aux & PHY_M_PS_SPEED_MSK) { | |
1418 | case PHY_M_PS_SPEED_1000: | |
1419 | return SPEED_1000; | |
1420 | case PHY_M_PS_SPEED_100: | |
1421 | return SPEED_100; | |
1422 | default: | |
1423 | return SPEED_10; | |
1424 | } | |
1425 | } | |
1426 | ||
1427 | static void sky2_link_up(struct sky2_port *sky2) | |
1428 | { | |
1429 | struct sky2_hw *hw = sky2->hw; | |
1430 | unsigned port = sky2->port; | |
1431 | u16 reg; | |
1432 | ||
1433 | /* Enable Transmit FIFO Underrun */ | |
793b883e | 1434 | sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK); |
cd28ab6a SH |
1435 | |
1436 | reg = gma_read16(hw, port, GM_GP_CTRL); | |
1437 | if (sky2->duplex == DUPLEX_FULL || sky2->autoneg == AUTONEG_ENABLE) | |
1438 | reg |= GM_GPCR_DUP_FULL; | |
1439 | ||
cd28ab6a SH |
1440 | /* enable Rx/Tx */ |
1441 | reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; | |
1442 | gma_write16(hw, port, GM_GP_CTRL, reg); | |
1443 | gma_read16(hw, port, GM_GP_CTRL); | |
1444 | ||
1445 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK); | |
1446 | ||
1447 | netif_carrier_on(sky2->netdev); | |
1448 | netif_wake_queue(sky2->netdev); | |
1449 | ||
1450 | /* Turn on link LED */ | |
793b883e | 1451 | sky2_write8(hw, SK_REG(port, LNK_LED_REG), |
cd28ab6a SH |
1452 | LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF); |
1453 | ||
793b883e SH |
1454 | if (hw->chip_id == CHIP_ID_YUKON_XL) { |
1455 | u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
1456 | ||
1457 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
1458 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */ | |
1459 | PHY_M_LEDC_INIT_CTRL(sky2->speed == | |
1460 | SPEED_10 ? 7 : 0) | | |
1461 | PHY_M_LEDC_STA1_CTRL(sky2->speed == | |
1462 | SPEED_100 ? 7 : 0) | | |
1463 | PHY_M_LEDC_STA0_CTRL(sky2->speed == | |
1464 | SPEED_1000 ? 7 : 0)); | |
1465 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
1466 | } | |
1467 | ||
cd28ab6a SH |
1468 | if (netif_msg_link(sky2)) |
1469 | printk(KERN_INFO PFX | |
d571b694 | 1470 | "%s: Link is up at %d Mbps, %s duplex, flow control %s\n", |
cd28ab6a SH |
1471 | sky2->netdev->name, sky2->speed, |
1472 | sky2->duplex == DUPLEX_FULL ? "full" : "half", | |
1473 | (sky2->tx_pause && sky2->rx_pause) ? "both" : | |
793b883e | 1474 | sky2->tx_pause ? "tx" : sky2->rx_pause ? "rx" : "none"); |
cd28ab6a SH |
1475 | } |
1476 | ||
1477 | static void sky2_link_down(struct sky2_port *sky2) | |
1478 | { | |
1479 | struct sky2_hw *hw = sky2->hw; | |
1480 | unsigned port = sky2->port; | |
1481 | u16 reg; | |
1482 | ||
1483 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0); | |
1484 | ||
1485 | reg = gma_read16(hw, port, GM_GP_CTRL); | |
1486 | reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA); | |
1487 | gma_write16(hw, port, GM_GP_CTRL, reg); | |
1488 | gma_read16(hw, port, GM_GP_CTRL); /* PCI post */ | |
1489 | ||
1490 | if (sky2->rx_pause && !sky2->tx_pause) { | |
1491 | /* restore Asymmetric Pause bit */ | |
1492 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, | |
793b883e SH |
1493 | gm_phy_read(hw, port, PHY_MARV_AUNE_ADV) |
1494 | | PHY_M_AN_ASP); | |
cd28ab6a SH |
1495 | } |
1496 | ||
cd28ab6a SH |
1497 | netif_carrier_off(sky2->netdev); |
1498 | netif_stop_queue(sky2->netdev); | |
1499 | ||
1500 | /* Turn on link LED */ | |
1501 | sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); | |
1502 | ||
1503 | if (netif_msg_link(sky2)) | |
1504 | printk(KERN_INFO PFX "%s: Link is down.\n", sky2->netdev->name); | |
1505 | sky2_phy_init(hw, port); | |
1506 | } | |
1507 | ||
793b883e SH |
1508 | static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux) |
1509 | { | |
1510 | struct sky2_hw *hw = sky2->hw; | |
1511 | unsigned port = sky2->port; | |
1512 | u16 lpa; | |
1513 | ||
1514 | lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP); | |
1515 | ||
1516 | if (lpa & PHY_M_AN_RF) { | |
1517 | printk(KERN_ERR PFX "%s: remote fault", sky2->netdev->name); | |
1518 | return -1; | |
1519 | } | |
1520 | ||
1521 | if (hw->chip_id != CHIP_ID_YUKON_FE && | |
1522 | gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) { | |
1523 | printk(KERN_ERR PFX "%s: master/slave fault", | |
1524 | sky2->netdev->name); | |
1525 | return -1; | |
1526 | } | |
1527 | ||
1528 | if (!(aux & PHY_M_PS_SPDUP_RES)) { | |
1529 | printk(KERN_ERR PFX "%s: speed/duplex mismatch", | |
1530 | sky2->netdev->name); | |
1531 | return -1; | |
1532 | } | |
1533 | ||
1534 | sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; | |
1535 | ||
1536 | sky2->speed = sky2_phy_speed(hw, aux); | |
1537 | ||
1538 | /* Pause bits are offset (9..8) */ | |
1539 | if (hw->chip_id == CHIP_ID_YUKON_XL) | |
1540 | aux >>= 6; | |
1541 | ||
1542 | sky2->rx_pause = (aux & PHY_M_PS_RX_P_EN) != 0; | |
1543 | sky2->tx_pause = (aux & PHY_M_PS_TX_P_EN) != 0; | |
1544 | ||
1545 | if ((sky2->tx_pause || sky2->rx_pause) | |
1546 | && !(sky2->speed < SPEED_1000 && sky2->duplex == DUPLEX_HALF)) | |
1547 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); | |
1548 | else | |
1549 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); | |
1550 | ||
1551 | return 0; | |
1552 | } | |
cd28ab6a SH |
1553 | |
1554 | /* | |
91c86df5 | 1555 | * Interrupt from PHY are handled outside of interrupt context |
cd28ab6a SH |
1556 | * because accessing phy registers requires spin wait which might |
1557 | * cause excess interrupt latency. | |
1558 | */ | |
91c86df5 | 1559 | static void sky2_phy_task(void *arg) |
cd28ab6a | 1560 | { |
91c86df5 | 1561 | struct sky2_port *sky2 = arg; |
cd28ab6a | 1562 | struct sky2_hw *hw = sky2->hw; |
cd28ab6a SH |
1563 | u16 istatus, phystat; |
1564 | ||
91c86df5 | 1565 | down(&sky2->phy_sema); |
793b883e SH |
1566 | istatus = gm_phy_read(hw, sky2->port, PHY_MARV_INT_STAT); |
1567 | phystat = gm_phy_read(hw, sky2->port, PHY_MARV_PHY_STAT); | |
cd28ab6a SH |
1568 | |
1569 | if (netif_msg_intr(sky2)) | |
1570 | printk(KERN_INFO PFX "%s: phy interrupt status 0x%x 0x%x\n", | |
1571 | sky2->netdev->name, istatus, phystat); | |
1572 | ||
1573 | if (istatus & PHY_M_IS_AN_COMPL) { | |
793b883e SH |
1574 | if (sky2_autoneg_done(sky2, phystat) == 0) |
1575 | sky2_link_up(sky2); | |
1576 | goto out; | |
1577 | } | |
cd28ab6a | 1578 | |
793b883e SH |
1579 | if (istatus & PHY_M_IS_LSP_CHANGE) |
1580 | sky2->speed = sky2_phy_speed(hw, phystat); | |
cd28ab6a | 1581 | |
793b883e SH |
1582 | if (istatus & PHY_M_IS_DUP_CHANGE) |
1583 | sky2->duplex = | |
1584 | (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; | |
cd28ab6a | 1585 | |
793b883e SH |
1586 | if (istatus & PHY_M_IS_LST_CHANGE) { |
1587 | if (phystat & PHY_M_PS_LINK_UP) | |
cd28ab6a | 1588 | sky2_link_up(sky2); |
793b883e SH |
1589 | else |
1590 | sky2_link_down(sky2); | |
cd28ab6a | 1591 | } |
793b883e | 1592 | out: |
91c86df5 | 1593 | up(&sky2->phy_sema); |
cd28ab6a SH |
1594 | |
1595 | local_irq_disable(); | |
793b883e | 1596 | hw->intr_mask |= (sky2->port == 0) ? Y2_IS_IRQ_PHY1 : Y2_IS_IRQ_PHY2; |
cd28ab6a SH |
1597 | sky2_write32(hw, B0_IMSK, hw->intr_mask); |
1598 | local_irq_enable(); | |
1599 | } | |
1600 | ||
1601 | static void sky2_tx_timeout(struct net_device *dev) | |
1602 | { | |
1603 | struct sky2_port *sky2 = netdev_priv(dev); | |
8cc048e3 SH |
1604 | struct sky2_hw *hw = sky2->hw; |
1605 | unsigned txq = txqaddr[sky2->port]; | |
cd28ab6a SH |
1606 | |
1607 | if (netif_msg_timer(sky2)) | |
1608 | printk(KERN_ERR PFX "%s: tx timeout\n", dev->name); | |
1609 | ||
8cc048e3 SH |
1610 | netif_stop_queue(dev); |
1611 | ||
1612 | sky2_write32(hw, Q_ADDR(txq, Q_CSR), BMU_STOP); | |
1613 | sky2_read32(hw, Q_ADDR(txq, Q_CSR)); | |
1614 | ||
1615 | sky2_write32(hw, Y2_QADDR(txq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET); | |
cd28ab6a SH |
1616 | |
1617 | sky2_tx_clean(sky2); | |
8cc048e3 SH |
1618 | |
1619 | sky2_qset(hw, txq); | |
1620 | sky2_prefetch_init(hw, txq, sky2->tx_le_map, TX_RING_SIZE - 1); | |
1621 | ||
1622 | netif_wake_queue(dev); | |
cd28ab6a SH |
1623 | } |
1624 | ||
734d1868 SH |
1625 | |
1626 | #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) | |
1627 | /* Want receive buffer size to be multiple of 64 bits, and incl room for vlan */ | |
1628 | static inline unsigned sky2_buf_size(int mtu) | |
1629 | { | |
1630 | return roundup(mtu + ETH_HLEN + 4, 8); | |
1631 | } | |
1632 | ||
cd28ab6a SH |
1633 | static int sky2_change_mtu(struct net_device *dev, int new_mtu) |
1634 | { | |
6b1a3aef SH |
1635 | struct sky2_port *sky2 = netdev_priv(dev); |
1636 | struct sky2_hw *hw = sky2->hw; | |
1637 | int err; | |
1638 | u16 ctl, mode; | |
cd28ab6a SH |
1639 | |
1640 | if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) | |
1641 | return -EINVAL; | |
1642 | ||
5a5b1ea0 SH |
1643 | if (hw->chip_id == CHIP_ID_YUKON_EC_U && new_mtu > ETH_DATA_LEN) |
1644 | return -EINVAL; | |
1645 | ||
6b1a3aef SH |
1646 | if (!netif_running(dev)) { |
1647 | dev->mtu = new_mtu; | |
1648 | return 0; | |
1649 | } | |
1650 | ||
6b1a3aef SH |
1651 | sky2_write32(hw, B0_IMSK, 0); |
1652 | ||
018d1c66 SH |
1653 | dev->trans_start = jiffies; /* prevent tx timeout */ |
1654 | netif_stop_queue(dev); | |
1655 | netif_poll_disable(hw->dev[0]); | |
1656 | ||
6b1a3aef SH |
1657 | ctl = gma_read16(hw, sky2->port, GM_GP_CTRL); |
1658 | gma_write16(hw, sky2->port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA); | |
1659 | sky2_rx_stop(sky2); | |
1660 | sky2_rx_clean(sky2); | |
cd28ab6a SH |
1661 | |
1662 | dev->mtu = new_mtu; | |
734d1868 | 1663 | sky2->rx_bufsize = sky2_buf_size(new_mtu); |
6b1a3aef SH |
1664 | mode = DATA_BLIND_VAL(DATA_BLIND_DEF) | |
1665 | GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); | |
1666 | ||
1667 | if (dev->mtu > ETH_DATA_LEN) | |
1668 | mode |= GM_SMOD_JUMBO_ENA; | |
1669 | ||
1670 | gma_write16(hw, sky2->port, GM_SERIAL_MODE, mode); | |
cd28ab6a | 1671 | |
6b1a3aef | 1672 | sky2_write8(hw, RB_ADDR(rxqaddr[sky2->port], RB_CTRL), RB_ENA_OP_MD); |
cd28ab6a | 1673 | |
6b1a3aef | 1674 | err = sky2_rx_start(sky2); |
6b1a3aef | 1675 | sky2_write32(hw, B0_IMSK, hw->intr_mask); |
018d1c66 | 1676 | |
1b537565 SH |
1677 | if (err) |
1678 | dev_close(dev); | |
1679 | else { | |
1680 | gma_write16(hw, sky2->port, GM_GP_CTRL, ctl); | |
1681 | ||
1682 | netif_poll_enable(hw->dev[0]); | |
1683 | netif_wake_queue(dev); | |
1684 | } | |
1685 | ||
cd28ab6a SH |
1686 | return err; |
1687 | } | |
1688 | ||
1689 | /* | |
1690 | * Receive one packet. | |
1691 | * For small packets or errors, just reuse existing skb. | |
d571b694 | 1692 | * For larger packets, get new buffer. |
cd28ab6a | 1693 | */ |
d11c13e7 | 1694 | static struct sk_buff *sky2_receive(struct sky2_port *sky2, |
cd28ab6a SH |
1695 | u16 length, u32 status) |
1696 | { | |
cd28ab6a | 1697 | struct ring_info *re = sky2->rx_ring + sky2->rx_next; |
79e57d32 | 1698 | struct sk_buff *skb = NULL; |
cd28ab6a SH |
1699 | |
1700 | if (unlikely(netif_msg_rx_status(sky2))) | |
1701 | printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n", | |
d11c13e7 | 1702 | sky2->netdev->name, sky2->rx_next, status, length); |
cd28ab6a | 1703 | |
793b883e | 1704 | sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending; |
d70cd51a | 1705 | prefetch(sky2->rx_ring + sky2->rx_next); |
cd28ab6a | 1706 | |
42eeea01 | 1707 | if (status & GMR_FS_ANY_ERR) |
cd28ab6a SH |
1708 | goto error; |
1709 | ||
42eeea01 SH |
1710 | if (!(status & GMR_FS_RX_OK)) |
1711 | goto resubmit; | |
1712 | ||
6e15b712 SH |
1713 | if ((status >> 16) != length || length > sky2->rx_bufsize) |
1714 | goto oversize; | |
1715 | ||
bdb5c58e | 1716 | if (length < copybreak) { |
79e57d32 SH |
1717 | skb = alloc_skb(length + 2, GFP_ATOMIC); |
1718 | if (!skb) | |
793b883e SH |
1719 | goto resubmit; |
1720 | ||
79e57d32 | 1721 | skb_reserve(skb, 2); |
793b883e SH |
1722 | pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->mapaddr, |
1723 | length, PCI_DMA_FROMDEVICE); | |
79e57d32 | 1724 | memcpy(skb->data, re->skb->data, length); |
d11c13e7 SH |
1725 | skb->ip_summed = re->skb->ip_summed; |
1726 | skb->csum = re->skb->csum; | |
793b883e SH |
1727 | pci_dma_sync_single_for_device(sky2->hw->pdev, re->mapaddr, |
1728 | length, PCI_DMA_FROMDEVICE); | |
793b883e | 1729 | } else { |
79e57d32 SH |
1730 | struct sk_buff *nskb; |
1731 | ||
82788c7a | 1732 | nskb = sky2_alloc_skb(sky2->rx_bufsize, GFP_ATOMIC); |
793b883e SH |
1733 | if (!nskb) |
1734 | goto resubmit; | |
cd28ab6a | 1735 | |
793b883e | 1736 | skb = re->skb; |
79e57d32 | 1737 | re->skb = nskb; |
793b883e | 1738 | pci_unmap_single(sky2->hw->pdev, re->mapaddr, |
734d1868 | 1739 | sky2->rx_bufsize, PCI_DMA_FROMDEVICE); |
793b883e | 1740 | prefetch(skb->data); |
cd28ab6a | 1741 | |
793b883e | 1742 | re->mapaddr = pci_map_single(sky2->hw->pdev, nskb->data, |
734d1868 | 1743 | sky2->rx_bufsize, PCI_DMA_FROMDEVICE); |
793b883e | 1744 | } |
cd28ab6a | 1745 | |
79e57d32 | 1746 | skb_put(skb, length); |
793b883e | 1747 | resubmit: |
d11c13e7 | 1748 | re->skb->ip_summed = CHECKSUM_NONE; |
734d1868 | 1749 | sky2_rx_add(sky2, re->mapaddr); |
79e57d32 | 1750 | |
bea86103 SH |
1751 | /* Tell receiver about new buffers. */ |
1752 | sky2_put_idx(sky2->hw, rxqaddr[sky2->port], sky2->rx_put, | |
1753 | &sky2->rx_last_put, RX_LE_SIZE); | |
1754 | ||
cd28ab6a SH |
1755 | return skb; |
1756 | ||
6e15b712 SH |
1757 | oversize: |
1758 | ++sky2->net_stats.rx_over_errors; | |
1759 | goto resubmit; | |
1760 | ||
cd28ab6a | 1761 | error: |
6e15b712 SH |
1762 | ++sky2->net_stats.rx_errors; |
1763 | ||
cd28ab6a SH |
1764 | if (netif_msg_rx_err(sky2)) |
1765 | printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n", | |
1766 | sky2->netdev->name, status, length); | |
793b883e SH |
1767 | |
1768 | if (status & (GMR_FS_LONG_ERR | GMR_FS_UN_SIZE)) | |
cd28ab6a SH |
1769 | sky2->net_stats.rx_length_errors++; |
1770 | if (status & GMR_FS_FRAGMENT) | |
1771 | sky2->net_stats.rx_frame_errors++; | |
1772 | if (status & GMR_FS_CRC_ERR) | |
1773 | sky2->net_stats.rx_crc_errors++; | |
793b883e SH |
1774 | if (status & GMR_FS_RX_FF_OV) |
1775 | sky2->net_stats.rx_fifo_errors++; | |
79e57d32 | 1776 | |
793b883e | 1777 | goto resubmit; |
cd28ab6a SH |
1778 | } |
1779 | ||
2224795d SH |
1780 | /* |
1781 | * Check for transmit complete | |
793b883e | 1782 | */ |
13b97b74 | 1783 | #define TX_NO_STATUS 0xffff |
2224795d | 1784 | |
13b97b74 SH |
1785 | static inline void sky2_tx_check(struct sky2_hw *hw, int port, u16 last) |
1786 | { | |
1787 | if (last != TX_NO_STATUS) { | |
1788 | struct net_device *dev = hw->dev[port]; | |
1789 | if (dev && netif_running(dev)) { | |
1790 | struct sky2_port *sky2 = netdev_priv(dev); | |
1791 | sky2_tx_complete(sky2, last); | |
1792 | } | |
2224795d | 1793 | } |
cd28ab6a SH |
1794 | } |
1795 | ||
1796 | /* | |
cd28ab6a SH |
1797 | * Both ports share the same status interrupt, therefore there is only |
1798 | * one poll routine. | |
cd28ab6a | 1799 | */ |
d11c13e7 | 1800 | static int sky2_poll(struct net_device *dev0, int *budget) |
cd28ab6a | 1801 | { |
d11c13e7 SH |
1802 | struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw; |
1803 | unsigned int to_do = min(dev0->quota, *budget); | |
cd28ab6a | 1804 | unsigned int work_done = 0; |
793b883e | 1805 | u16 hwidx; |
13b97b74 | 1806 | u16 tx_done[2] = { TX_NO_STATUS, TX_NO_STATUS }; |
cd28ab6a | 1807 | |
793b883e | 1808 | hwidx = sky2_read16(hw, STAT_PUT_IDX); |
79e57d32 | 1809 | BUG_ON(hwidx >= STATUS_RING_SIZE); |
af2a58ac | 1810 | rmb(); |
bea86103 | 1811 | |
13210ce5 SH |
1812 | while (hwidx != hw->st_idx) { |
1813 | struct sky2_status_le *le = hw->st_le + hw->st_idx; | |
1814 | struct net_device *dev; | |
d11c13e7 | 1815 | struct sky2_port *sky2; |
cd28ab6a | 1816 | struct sk_buff *skb; |
cd28ab6a SH |
1817 | u32 status; |
1818 | u16 length; | |
13210ce5 | 1819 | u8 op; |
cd28ab6a | 1820 | |
13210ce5 | 1821 | le = hw->st_le + hw->st_idx; |
bea86103 | 1822 | hw->st_idx = (hw->st_idx + 1) % STATUS_RING_SIZE; |
13210ce5 | 1823 | prefetch(hw->st_le + hw->st_idx); |
bea86103 | 1824 | |
13210ce5 SH |
1825 | BUG_ON(le->link >= 2); |
1826 | dev = hw->dev[le->link]; | |
1827 | if (dev == NULL || !netif_running(dev)) | |
1828 | continue; | |
1829 | ||
1830 | sky2 = netdev_priv(dev); | |
cd28ab6a SH |
1831 | status = le32_to_cpu(le->status); |
1832 | length = le16_to_cpu(le->length); | |
13210ce5 SH |
1833 | op = le->opcode & ~HW_OWNER; |
1834 | le->opcode = 0; | |
cd28ab6a | 1835 | |
13210ce5 | 1836 | switch (op) { |
cd28ab6a | 1837 | case OP_RXSTAT: |
d11c13e7 | 1838 | skb = sky2_receive(sky2, length, status); |
d1f13708 SH |
1839 | if (!skb) |
1840 | break; | |
13210ce5 SH |
1841 | |
1842 | skb->dev = dev; | |
1843 | skb->protocol = eth_type_trans(skb, dev); | |
1844 | dev->last_rx = jiffies; | |
1845 | ||
d1f13708 SH |
1846 | #ifdef SKY2_VLAN_TAG_USED |
1847 | if (sky2->vlgrp && (status & GMR_FS_VLAN)) { | |
1848 | vlan_hwaccel_receive_skb(skb, | |
1849 | sky2->vlgrp, | |
1850 | be16_to_cpu(sky2->rx_tag)); | |
1851 | } else | |
1852 | #endif | |
cd28ab6a | 1853 | netif_receive_skb(skb); |
13210ce5 SH |
1854 | |
1855 | if (++work_done >= to_do) | |
1856 | goto exit_loop; | |
cd28ab6a SH |
1857 | break; |
1858 | ||
d1f13708 SH |
1859 | #ifdef SKY2_VLAN_TAG_USED |
1860 | case OP_RXVLAN: | |
1861 | sky2->rx_tag = length; | |
1862 | break; | |
1863 | ||
1864 | case OP_RXCHKSVLAN: | |
1865 | sky2->rx_tag = length; | |
1866 | /* fall through */ | |
1867 | #endif | |
cd28ab6a | 1868 | case OP_RXCHKS: |
d11c13e7 SH |
1869 | skb = sky2->rx_ring[sky2->rx_next].skb; |
1870 | skb->ip_summed = CHECKSUM_HW; | |
1871 | skb->csum = le16_to_cpu(status); | |
cd28ab6a SH |
1872 | break; |
1873 | ||
1874 | case OP_TXINDEXLE: | |
13b97b74 SH |
1875 | /* TX index reports status for both ports */ |
1876 | tx_done[0] = status & 0xffff; | |
1877 | tx_done[1] = ((status >> 24) & 0xff) | |
1878 | | (u16)(length & 0xf) << 8; | |
cd28ab6a SH |
1879 | break; |
1880 | ||
cd28ab6a SH |
1881 | default: |
1882 | if (net_ratelimit()) | |
793b883e | 1883 | printk(KERN_WARNING PFX |
13210ce5 | 1884 | "unknown status opcode 0x%x\n", op); |
cd28ab6a SH |
1885 | break; |
1886 | } | |
13210ce5 | 1887 | } |
cd28ab6a | 1888 | |
13210ce5 | 1889 | exit_loop: |
3e4b32e1 | 1890 | sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ); |
793b883e SH |
1891 | mmiowb(); |
1892 | ||
13b97b74 SH |
1893 | sky2_tx_check(hw, 0, tx_done[0]); |
1894 | sky2_tx_check(hw, 1, tx_done[1]); | |
1895 | ||
3e4b32e1 | 1896 | if (sky2_read16(hw, STAT_PUT_IDX) == hw->st_idx) { |
13b97b74 | 1897 | /* need to restart TX timer */ |
cd28ab6a SH |
1898 | if (is_ec_a1(hw)) { |
1899 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP); | |
1900 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); | |
1901 | } | |
1902 | ||
bea86103 | 1903 | netif_rx_complete(dev0); |
cd28ab6a SH |
1904 | hw->intr_mask |= Y2_IS_STAT_BMU; |
1905 | sky2_write32(hw, B0_IMSK, hw->intr_mask); | |
13210ce5 SH |
1906 | mmiowb(); |
1907 | return 0; | |
1908 | } else { | |
1909 | *budget -= work_done; | |
1910 | dev0->quota -= work_done; | |
1911 | return 1; | |
cd28ab6a | 1912 | } |
cd28ab6a SH |
1913 | } |
1914 | ||
1915 | static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status) | |
1916 | { | |
1917 | struct net_device *dev = hw->dev[port]; | |
1918 | ||
1919 | printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n", | |
1920 | dev->name, status); | |
1921 | ||
1922 | if (status & Y2_IS_PAR_RD1) { | |
1923 | printk(KERN_ERR PFX "%s: ram data read parity error\n", | |
1924 | dev->name); | |
1925 | /* Clear IRQ */ | |
1926 | sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR); | |
1927 | } | |
1928 | ||
1929 | if (status & Y2_IS_PAR_WR1) { | |
1930 | printk(KERN_ERR PFX "%s: ram data write parity error\n", | |
1931 | dev->name); | |
1932 | ||
1933 | sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR); | |
1934 | } | |
1935 | ||
1936 | if (status & Y2_IS_PAR_MAC1) { | |
1937 | printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name); | |
1938 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE); | |
1939 | } | |
1940 | ||
1941 | if (status & Y2_IS_PAR_RX1) { | |
1942 | printk(KERN_ERR PFX "%s: RX parity error\n", dev->name); | |
1943 | sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR); | |
1944 | } | |
1945 | ||
1946 | if (status & Y2_IS_TCP_TXA1) { | |
1947 | printk(KERN_ERR PFX "%s: TCP segmentation error\n", dev->name); | |
1948 | sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP); | |
1949 | } | |
1950 | } | |
1951 | ||
1952 | static void sky2_hw_intr(struct sky2_hw *hw) | |
1953 | { | |
1954 | u32 status = sky2_read32(hw, B0_HWE_ISRC); | |
1955 | ||
793b883e | 1956 | if (status & Y2_IS_TIST_OV) |
cd28ab6a | 1957 | sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); |
cd28ab6a SH |
1958 | |
1959 | if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) { | |
793b883e SH |
1960 | u16 pci_err; |
1961 | ||
1962 | pci_read_config_word(hw->pdev, PCI_STATUS, &pci_err); | |
cd28ab6a SH |
1963 | printk(KERN_ERR PFX "%s: pci hw error (0x%x)\n", |
1964 | pci_name(hw->pdev), pci_err); | |
1965 | ||
1966 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
793b883e SH |
1967 | pci_write_config_word(hw->pdev, PCI_STATUS, |
1968 | pci_err | PCI_STATUS_ERROR_BITS); | |
cd28ab6a SH |
1969 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
1970 | } | |
1971 | ||
1972 | if (status & Y2_IS_PCI_EXP) { | |
d571b694 | 1973 | /* PCI-Express uncorrectable Error occurred */ |
793b883e SH |
1974 | u32 pex_err; |
1975 | ||
1976 | pci_read_config_dword(hw->pdev, PEX_UNC_ERR_STAT, &pex_err); | |
cd28ab6a | 1977 | |
cd28ab6a SH |
1978 | printk(KERN_ERR PFX "%s: pci express error (0x%x)\n", |
1979 | pci_name(hw->pdev), pex_err); | |
1980 | ||
1981 | /* clear the interrupt */ | |
1982 | sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
793b883e SH |
1983 | pci_write_config_dword(hw->pdev, PEX_UNC_ERR_STAT, |
1984 | 0xffffffffUL); | |
cd28ab6a SH |
1985 | sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
1986 | ||
1987 | if (pex_err & PEX_FATAL_ERRORS) { | |
1988 | u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK); | |
1989 | hwmsk &= ~Y2_IS_PCI_EXP; | |
1990 | sky2_write32(hw, B0_HWE_IMSK, hwmsk); | |
1991 | } | |
1992 | } | |
1993 | ||
1994 | if (status & Y2_HWE_L1_MASK) | |
1995 | sky2_hw_error(hw, 0, status); | |
1996 | status >>= 8; | |
1997 | if (status & Y2_HWE_L1_MASK) | |
1998 | sky2_hw_error(hw, 1, status); | |
1999 | } | |
2000 | ||
2001 | static void sky2_mac_intr(struct sky2_hw *hw, unsigned port) | |
2002 | { | |
2003 | struct net_device *dev = hw->dev[port]; | |
2004 | struct sky2_port *sky2 = netdev_priv(dev); | |
2005 | u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC)); | |
2006 | ||
2007 | if (netif_msg_intr(sky2)) | |
2008 | printk(KERN_INFO PFX "%s: mac interrupt status 0x%x\n", | |
2009 | dev->name, status); | |
2010 | ||
2011 | if (status & GM_IS_RX_FF_OR) { | |
2012 | ++sky2->net_stats.rx_fifo_errors; | |
2013 | sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO); | |
2014 | } | |
2015 | ||
2016 | if (status & GM_IS_TX_FF_UR) { | |
2017 | ++sky2->net_stats.tx_fifo_errors; | |
2018 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU); | |
2019 | } | |
cd28ab6a SH |
2020 | } |
2021 | ||
2022 | static void sky2_phy_intr(struct sky2_hw *hw, unsigned port) | |
2023 | { | |
2024 | struct net_device *dev = hw->dev[port]; | |
2025 | struct sky2_port *sky2 = netdev_priv(dev); | |
2026 | ||
2027 | hw->intr_mask &= ~(port == 0 ? Y2_IS_IRQ_PHY1 : Y2_IS_IRQ_PHY2); | |
2028 | sky2_write32(hw, B0_IMSK, hw->intr_mask); | |
91c86df5 | 2029 | schedule_work(&sky2->phy_task); |
cd28ab6a SH |
2030 | } |
2031 | ||
2032 | static irqreturn_t sky2_intr(int irq, void *dev_id, struct pt_regs *regs) | |
2033 | { | |
2034 | struct sky2_hw *hw = dev_id; | |
bea86103 | 2035 | struct net_device *dev0 = hw->dev[0]; |
cd28ab6a SH |
2036 | u32 status; |
2037 | ||
2038 | status = sky2_read32(hw, B0_Y2_SP_ISRC2); | |
793b883e | 2039 | if (status == 0 || status == ~0) |
cd28ab6a SH |
2040 | return IRQ_NONE; |
2041 | ||
2042 | if (status & Y2_IS_HW_ERR) | |
2043 | sky2_hw_intr(hw); | |
2044 | ||
793b883e | 2045 | /* Do NAPI for Rx and Tx status */ |
bea86103 | 2046 | if (status & Y2_IS_STAT_BMU) { |
cd28ab6a SH |
2047 | hw->intr_mask &= ~Y2_IS_STAT_BMU; |
2048 | sky2_write32(hw, B0_IMSK, hw->intr_mask); | |
bea86103 | 2049 | |
0a122576 SH |
2050 | if (likely(__netif_rx_schedule_prep(dev0))) { |
2051 | prefetch(&hw->st_le[hw->st_idx]); | |
bea86103 | 2052 | __netif_rx_schedule(dev0); |
0a122576 | 2053 | } |
cd28ab6a SH |
2054 | } |
2055 | ||
793b883e | 2056 | if (status & Y2_IS_IRQ_PHY1) |
cd28ab6a SH |
2057 | sky2_phy_intr(hw, 0); |
2058 | ||
2059 | if (status & Y2_IS_IRQ_PHY2) | |
2060 | sky2_phy_intr(hw, 1); | |
2061 | ||
2062 | if (status & Y2_IS_IRQ_MAC1) | |
2063 | sky2_mac_intr(hw, 0); | |
2064 | ||
2065 | if (status & Y2_IS_IRQ_MAC2) | |
2066 | sky2_mac_intr(hw, 1); | |
2067 | ||
cd28ab6a | 2068 | sky2_write32(hw, B0_Y2_SP_ICR, 2); |
793b883e SH |
2069 | |
2070 | sky2_read32(hw, B0_IMSK); | |
2071 | ||
cd28ab6a SH |
2072 | return IRQ_HANDLED; |
2073 | } | |
2074 | ||
2075 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2076 | static void sky2_netpoll(struct net_device *dev) | |
2077 | { | |
2078 | struct sky2_port *sky2 = netdev_priv(dev); | |
2079 | ||
793b883e | 2080 | sky2_intr(sky2->hw->pdev->irq, sky2->hw, NULL); |
cd28ab6a SH |
2081 | } |
2082 | #endif | |
2083 | ||
2084 | /* Chip internal frequency for clock calculations */ | |
fb17358f | 2085 | static inline u32 sky2_mhz(const struct sky2_hw *hw) |
cd28ab6a | 2086 | { |
793b883e | 2087 | switch (hw->chip_id) { |
cd28ab6a | 2088 | case CHIP_ID_YUKON_EC: |
5a5b1ea0 | 2089 | case CHIP_ID_YUKON_EC_U: |
fb17358f | 2090 | return 125; /* 125 Mhz */ |
cd28ab6a | 2091 | case CHIP_ID_YUKON_FE: |
fb17358f | 2092 | return 100; /* 100 Mhz */ |
793b883e | 2093 | default: /* YUKON_XL */ |
fb17358f | 2094 | return 156; /* 156 Mhz */ |
cd28ab6a SH |
2095 | } |
2096 | } | |
2097 | ||
fb17358f | 2098 | static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us) |
cd28ab6a | 2099 | { |
fb17358f | 2100 | return sky2_mhz(hw) * us; |
cd28ab6a SH |
2101 | } |
2102 | ||
fb17358f | 2103 | static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk) |
cd28ab6a | 2104 | { |
fb17358f | 2105 | return clk / sky2_mhz(hw); |
cd28ab6a SH |
2106 | } |
2107 | ||
fb17358f | 2108 | |
cd28ab6a SH |
2109 | static int sky2_reset(struct sky2_hw *hw) |
2110 | { | |
5afa0a9c | 2111 | u32 ctst; |
cd28ab6a SH |
2112 | u16 status; |
2113 | u8 t8, pmd_type; | |
2114 | int i; | |
2115 | ||
2116 | ctst = sky2_read32(hw, B0_CTST); | |
2117 | ||
2118 | sky2_write8(hw, B0_CTST, CS_RST_CLR); | |
2119 | hw->chip_id = sky2_read8(hw, B2_CHIP_ID); | |
2120 | if (hw->chip_id < CHIP_ID_YUKON_XL || hw->chip_id > CHIP_ID_YUKON_FE) { | |
2121 | printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n", | |
2122 | pci_name(hw->pdev), hw->chip_id); | |
2123 | return -EOPNOTSUPP; | |
2124 | } | |
2125 | ||
793b883e SH |
2126 | /* ring for status responses */ |
2127 | hw->st_le = pci_alloc_consistent(hw->pdev, STATUS_LE_BYTES, | |
2128 | &hw->st_dma); | |
2129 | if (!hw->st_le) | |
2130 | return -ENOMEM; | |
2131 | ||
cd28ab6a SH |
2132 | /* disable ASF */ |
2133 | if (hw->chip_id <= CHIP_ID_YUKON_EC) { | |
2134 | sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET); | |
2135 | sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE); | |
2136 | } | |
2137 | ||
2138 | /* do a SW reset */ | |
2139 | sky2_write8(hw, B0_CTST, CS_RST_SET); | |
2140 | sky2_write8(hw, B0_CTST, CS_RST_CLR); | |
2141 | ||
2142 | /* clear PCI errors, if any */ | |
793b883e | 2143 | pci_read_config_word(hw->pdev, PCI_STATUS, &status); |
cd28ab6a | 2144 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); |
793b883e SH |
2145 | pci_write_config_word(hw->pdev, PCI_STATUS, |
2146 | status | PCI_STATUS_ERROR_BITS); | |
cd28ab6a SH |
2147 | |
2148 | sky2_write8(hw, B0_CTST, CS_MRST_CLR); | |
2149 | ||
2150 | /* clear any PEX errors */ | |
2151 | if (is_pciex(hw)) { | |
793b883e SH |
2152 | u16 lstat; |
2153 | pci_write_config_dword(hw->pdev, PEX_UNC_ERR_STAT, | |
2154 | 0xffffffffUL); | |
2155 | pci_read_config_word(hw->pdev, PEX_LNK_STAT, &lstat); | |
cd28ab6a SH |
2156 | } |
2157 | ||
2158 | pmd_type = sky2_read8(hw, B2_PMD_TYP); | |
2159 | hw->copper = !(pmd_type == 'L' || pmd_type == 'S'); | |
2160 | ||
2161 | hw->ports = 1; | |
2162 | t8 = sky2_read8(hw, B2_Y2_HW_RES); | |
2163 | if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) { | |
2164 | if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC)) | |
2165 | ++hw->ports; | |
2166 | } | |
2167 | hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4; | |
2168 | ||
5afa0a9c | 2169 | sky2_set_power_state(hw, PCI_D0); |
cd28ab6a SH |
2170 | |
2171 | for (i = 0; i < hw->ports; i++) { | |
2172 | sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET); | |
2173 | sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR); | |
2174 | } | |
2175 | ||
2176 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); | |
2177 | ||
793b883e SH |
2178 | /* Clear I2C IRQ noise */ |
2179 | sky2_write32(hw, B2_I2C_IRQ, 1); | |
cd28ab6a SH |
2180 | |
2181 | /* turn off hardware timer (unused) */ | |
2182 | sky2_write8(hw, B2_TI_CTRL, TIM_STOP); | |
2183 | sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ); | |
793b883e | 2184 | |
cd28ab6a SH |
2185 | sky2_write8(hw, B0_Y2LED, LED_STAT_ON); |
2186 | ||
69634ee7 SH |
2187 | /* Turn off descriptor polling */ |
2188 | sky2_write32(hw, B28_DPT_CTRL, DPT_STOP); | |
cd28ab6a SH |
2189 | |
2190 | /* Turn off receive timestamp */ | |
2191 | sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP); | |
793b883e | 2192 | sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); |
cd28ab6a SH |
2193 | |
2194 | /* enable the Tx Arbiters */ | |
2195 | for (i = 0; i < hw->ports; i++) | |
2196 | sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB); | |
2197 | ||
2198 | /* Initialize ram interface */ | |
2199 | for (i = 0; i < hw->ports; i++) { | |
793b883e | 2200 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR); |
cd28ab6a SH |
2201 | |
2202 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53); | |
2203 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53); | |
2204 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53); | |
2205 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53); | |
2206 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53); | |
2207 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53); | |
2208 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53); | |
2209 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53); | |
2210 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53); | |
2211 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53); | |
2212 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53); | |
2213 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53); | |
2214 | } | |
2215 | ||
cd28ab6a SH |
2216 | sky2_write32(hw, B0_HWE_IMSK, Y2_HWE_ALL_MASK); |
2217 | ||
cd28ab6a SH |
2218 | for (i = 0; i < hw->ports; i++) |
2219 | sky2_phy_reset(hw, i); | |
cd28ab6a | 2220 | |
cd28ab6a SH |
2221 | memset(hw->st_le, 0, STATUS_LE_BYTES); |
2222 | hw->st_idx = 0; | |
2223 | ||
2224 | sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET); | |
2225 | sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR); | |
2226 | ||
2227 | sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma); | |
793b883e | 2228 | sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32); |
cd28ab6a SH |
2229 | |
2230 | /* Set the list last index */ | |
793b883e | 2231 | sky2_write16(hw, STAT_LAST_IDX, STATUS_RING_SIZE - 1); |
cd28ab6a | 2232 | |
793b883e | 2233 | /* These status setup values are copied from SysKonnect's driver */ |
cd28ab6a SH |
2234 | if (is_ec_a1(hw)) { |
2235 | /* WA for dev. #4.3 */ | |
793b883e | 2236 | sky2_write16(hw, STAT_TX_IDX_TH, 0xfff); /* Tx Threshold */ |
cd28ab6a SH |
2237 | |
2238 | /* set Status-FIFO watermark */ | |
2239 | sky2_write8(hw, STAT_FIFO_WM, 0x21); /* WA for dev. #4.18 */ | |
2240 | ||
2241 | /* set Status-FIFO ISR watermark */ | |
793b883e | 2242 | sky2_write8(hw, STAT_FIFO_ISR_WM, 0x07); /* WA for dev. #4.18 */ |
69634ee7 | 2243 | sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 10000)); |
cd28ab6a | 2244 | } else { |
69634ee7 SH |
2245 | sky2_write16(hw, STAT_TX_IDX_TH, 10); |
2246 | sky2_write8(hw, STAT_FIFO_WM, 16); | |
cd28ab6a SH |
2247 | |
2248 | /* set Status-FIFO ISR watermark */ | |
2249 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0) | |
69634ee7 SH |
2250 | sky2_write8(hw, STAT_FIFO_ISR_WM, 4); |
2251 | else | |
2252 | sky2_write8(hw, STAT_FIFO_ISR_WM, 16); | |
cd28ab6a | 2253 | |
69634ee7 SH |
2254 | sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 1000)); |
2255 | sky2_write32(hw, STAT_LEV_TIMER_INI, sky2_us2clk(hw, 100)); | |
2256 | sky2_write32(hw, STAT_ISR_TIMER_INI, sky2_us2clk(hw, 20)); | |
cd28ab6a SH |
2257 | } |
2258 | ||
793b883e | 2259 | /* enable status unit */ |
cd28ab6a SH |
2260 | sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON); |
2261 | ||
2262 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); | |
2263 | sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START); | |
2264 | sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START); | |
2265 | ||
2266 | return 0; | |
2267 | } | |
2268 | ||
2269 | static inline u32 sky2_supported_modes(const struct sky2_hw *hw) | |
2270 | { | |
2271 | u32 modes; | |
2272 | if (hw->copper) { | |
793b883e SH |
2273 | modes = SUPPORTED_10baseT_Half |
2274 | | SUPPORTED_10baseT_Full | |
2275 | | SUPPORTED_100baseT_Half | |
2276 | | SUPPORTED_100baseT_Full | |
2277 | | SUPPORTED_Autoneg | SUPPORTED_TP; | |
cd28ab6a SH |
2278 | |
2279 | if (hw->chip_id != CHIP_ID_YUKON_FE) | |
2280 | modes |= SUPPORTED_1000baseT_Half | |
793b883e | 2281 | | SUPPORTED_1000baseT_Full; |
cd28ab6a SH |
2282 | } else |
2283 | modes = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE | |
793b883e | 2284 | | SUPPORTED_Autoneg; |
cd28ab6a SH |
2285 | return modes; |
2286 | } | |
2287 | ||
793b883e | 2288 | static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
cd28ab6a SH |
2289 | { |
2290 | struct sky2_port *sky2 = netdev_priv(dev); | |
2291 | struct sky2_hw *hw = sky2->hw; | |
2292 | ||
2293 | ecmd->transceiver = XCVR_INTERNAL; | |
2294 | ecmd->supported = sky2_supported_modes(hw); | |
2295 | ecmd->phy_address = PHY_ADDR_MARV; | |
2296 | if (hw->copper) { | |
2297 | ecmd->supported = SUPPORTED_10baseT_Half | |
793b883e SH |
2298 | | SUPPORTED_10baseT_Full |
2299 | | SUPPORTED_100baseT_Half | |
2300 | | SUPPORTED_100baseT_Full | |
2301 | | SUPPORTED_1000baseT_Half | |
2302 | | SUPPORTED_1000baseT_Full | |
2303 | | SUPPORTED_Autoneg | SUPPORTED_TP; | |
cd28ab6a SH |
2304 | ecmd->port = PORT_TP; |
2305 | } else | |
2306 | ecmd->port = PORT_FIBRE; | |
2307 | ||
2308 | ecmd->advertising = sky2->advertising; | |
2309 | ecmd->autoneg = sky2->autoneg; | |
2310 | ecmd->speed = sky2->speed; | |
2311 | ecmd->duplex = sky2->duplex; | |
2312 | return 0; | |
2313 | } | |
2314 | ||
2315 | static int sky2_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
2316 | { | |
2317 | struct sky2_port *sky2 = netdev_priv(dev); | |
2318 | const struct sky2_hw *hw = sky2->hw; | |
2319 | u32 supported = sky2_supported_modes(hw); | |
2320 | ||
2321 | if (ecmd->autoneg == AUTONEG_ENABLE) { | |
2322 | ecmd->advertising = supported; | |
2323 | sky2->duplex = -1; | |
2324 | sky2->speed = -1; | |
2325 | } else { | |
2326 | u32 setting; | |
2327 | ||
793b883e | 2328 | switch (ecmd->speed) { |
cd28ab6a SH |
2329 | case SPEED_1000: |
2330 | if (ecmd->duplex == DUPLEX_FULL) | |
2331 | setting = SUPPORTED_1000baseT_Full; | |
2332 | else if (ecmd->duplex == DUPLEX_HALF) | |
2333 | setting = SUPPORTED_1000baseT_Half; | |
2334 | else | |
2335 | return -EINVAL; | |
2336 | break; | |
2337 | case SPEED_100: | |
2338 | if (ecmd->duplex == DUPLEX_FULL) | |
2339 | setting = SUPPORTED_100baseT_Full; | |
2340 | else if (ecmd->duplex == DUPLEX_HALF) | |
2341 | setting = SUPPORTED_100baseT_Half; | |
2342 | else | |
2343 | return -EINVAL; | |
2344 | break; | |
2345 | ||
2346 | case SPEED_10: | |
2347 | if (ecmd->duplex == DUPLEX_FULL) | |
2348 | setting = SUPPORTED_10baseT_Full; | |
2349 | else if (ecmd->duplex == DUPLEX_HALF) | |
2350 | setting = SUPPORTED_10baseT_Half; | |
2351 | else | |
2352 | return -EINVAL; | |
2353 | break; | |
2354 | default: | |
2355 | return -EINVAL; | |
2356 | } | |
2357 | ||
2358 | if ((setting & supported) == 0) | |
2359 | return -EINVAL; | |
2360 | ||
2361 | sky2->speed = ecmd->speed; | |
2362 | sky2->duplex = ecmd->duplex; | |
2363 | } | |
2364 | ||
2365 | sky2->autoneg = ecmd->autoneg; | |
2366 | sky2->advertising = ecmd->advertising; | |
2367 | ||
1b537565 SH |
2368 | if (netif_running(dev)) |
2369 | sky2_phy_reinit(sky2); | |
cd28ab6a SH |
2370 | |
2371 | return 0; | |
2372 | } | |
2373 | ||
2374 | static void sky2_get_drvinfo(struct net_device *dev, | |
2375 | struct ethtool_drvinfo *info) | |
2376 | { | |
2377 | struct sky2_port *sky2 = netdev_priv(dev); | |
2378 | ||
2379 | strcpy(info->driver, DRV_NAME); | |
2380 | strcpy(info->version, DRV_VERSION); | |
2381 | strcpy(info->fw_version, "N/A"); | |
2382 | strcpy(info->bus_info, pci_name(sky2->hw->pdev)); | |
2383 | } | |
2384 | ||
2385 | static const struct sky2_stat { | |
793b883e SH |
2386 | char name[ETH_GSTRING_LEN]; |
2387 | u16 offset; | |
cd28ab6a SH |
2388 | } sky2_stats[] = { |
2389 | { "tx_bytes", GM_TXO_OK_HI }, | |
2390 | { "rx_bytes", GM_RXO_OK_HI }, | |
2391 | { "tx_broadcast", GM_TXF_BC_OK }, | |
2392 | { "rx_broadcast", GM_RXF_BC_OK }, | |
2393 | { "tx_multicast", GM_TXF_MC_OK }, | |
2394 | { "rx_multicast", GM_RXF_MC_OK }, | |
2395 | { "tx_unicast", GM_TXF_UC_OK }, | |
2396 | { "rx_unicast", GM_RXF_UC_OK }, | |
2397 | { "tx_mac_pause", GM_TXF_MPAUSE }, | |
2398 | { "rx_mac_pause", GM_RXF_MPAUSE }, | |
2399 | { "collisions", GM_TXF_SNG_COL }, | |
2400 | { "late_collision",GM_TXF_LAT_COL }, | |
2401 | { "aborted", GM_TXF_ABO_COL }, | |
2402 | { "multi_collisions", GM_TXF_MUL_COL }, | |
2403 | { "fifo_underrun", GM_TXE_FIFO_UR }, | |
2404 | { "fifo_overflow", GM_RXE_FIFO_OV }, | |
2405 | { "rx_toolong", GM_RXF_LNG_ERR }, | |
2406 | { "rx_jabber", GM_RXF_JAB_PKT }, | |
2407 | { "rx_runt", GM_RXE_FRAG }, | |
2408 | { "rx_too_long", GM_RXF_LNG_ERR }, | |
2409 | { "rx_fcs_error", GM_RXF_FCS_ERR }, | |
2410 | }; | |
2411 | ||
cd28ab6a SH |
2412 | static u32 sky2_get_rx_csum(struct net_device *dev) |
2413 | { | |
2414 | struct sky2_port *sky2 = netdev_priv(dev); | |
2415 | ||
2416 | return sky2->rx_csum; | |
2417 | } | |
2418 | ||
2419 | static int sky2_set_rx_csum(struct net_device *dev, u32 data) | |
2420 | { | |
2421 | struct sky2_port *sky2 = netdev_priv(dev); | |
2422 | ||
2423 | sky2->rx_csum = data; | |
793b883e | 2424 | |
cd28ab6a SH |
2425 | sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR), |
2426 | data ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM); | |
2427 | ||
2428 | return 0; | |
2429 | } | |
2430 | ||
2431 | static u32 sky2_get_msglevel(struct net_device *netdev) | |
2432 | { | |
2433 | struct sky2_port *sky2 = netdev_priv(netdev); | |
2434 | return sky2->msg_enable; | |
2435 | } | |
2436 | ||
9a7ae0a9 SH |
2437 | static int sky2_nway_reset(struct net_device *dev) |
2438 | { | |
2439 | struct sky2_port *sky2 = netdev_priv(dev); | |
9a7ae0a9 SH |
2440 | |
2441 | if (sky2->autoneg != AUTONEG_ENABLE) | |
2442 | return -EINVAL; | |
2443 | ||
1b537565 | 2444 | sky2_phy_reinit(sky2); |
9a7ae0a9 SH |
2445 | |
2446 | return 0; | |
2447 | } | |
2448 | ||
793b883e | 2449 | static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count) |
cd28ab6a SH |
2450 | { |
2451 | struct sky2_hw *hw = sky2->hw; | |
2452 | unsigned port = sky2->port; | |
2453 | int i; | |
2454 | ||
2455 | data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32 | |
793b883e | 2456 | | (u64) gma_read32(hw, port, GM_TXO_OK_LO); |
cd28ab6a | 2457 | data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32 |
793b883e | 2458 | | (u64) gma_read32(hw, port, GM_RXO_OK_LO); |
cd28ab6a | 2459 | |
793b883e | 2460 | for (i = 2; i < count; i++) |
cd28ab6a SH |
2461 | data[i] = (u64) gma_read32(hw, port, sky2_stats[i].offset); |
2462 | } | |
2463 | ||
cd28ab6a SH |
2464 | static void sky2_set_msglevel(struct net_device *netdev, u32 value) |
2465 | { | |
2466 | struct sky2_port *sky2 = netdev_priv(netdev); | |
2467 | sky2->msg_enable = value; | |
2468 | } | |
2469 | ||
2470 | static int sky2_get_stats_count(struct net_device *dev) | |
2471 | { | |
2472 | return ARRAY_SIZE(sky2_stats); | |
2473 | } | |
2474 | ||
2475 | static void sky2_get_ethtool_stats(struct net_device *dev, | |
793b883e | 2476 | struct ethtool_stats *stats, u64 * data) |
cd28ab6a SH |
2477 | { |
2478 | struct sky2_port *sky2 = netdev_priv(dev); | |
2479 | ||
793b883e | 2480 | sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats)); |
cd28ab6a SH |
2481 | } |
2482 | ||
793b883e | 2483 | static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data) |
cd28ab6a SH |
2484 | { |
2485 | int i; | |
2486 | ||
2487 | switch (stringset) { | |
2488 | case ETH_SS_STATS: | |
2489 | for (i = 0; i < ARRAY_SIZE(sky2_stats); i++) | |
2490 | memcpy(data + i * ETH_GSTRING_LEN, | |
2491 | sky2_stats[i].name, ETH_GSTRING_LEN); | |
2492 | break; | |
2493 | } | |
2494 | } | |
2495 | ||
2496 | /* Use hardware MIB variables for critical path statistics and | |
2497 | * transmit feedback not reported at interrupt. | |
2498 | * Other errors are accounted for in interrupt handler. | |
2499 | */ | |
2500 | static struct net_device_stats *sky2_get_stats(struct net_device *dev) | |
2501 | { | |
2502 | struct sky2_port *sky2 = netdev_priv(dev); | |
793b883e | 2503 | u64 data[13]; |
cd28ab6a | 2504 | |
793b883e | 2505 | sky2_phy_stats(sky2, data, ARRAY_SIZE(data)); |
cd28ab6a SH |
2506 | |
2507 | sky2->net_stats.tx_bytes = data[0]; | |
2508 | sky2->net_stats.rx_bytes = data[1]; | |
2509 | sky2->net_stats.tx_packets = data[2] + data[4] + data[6]; | |
2510 | sky2->net_stats.rx_packets = data[3] + data[5] + data[7]; | |
2511 | sky2->net_stats.multicast = data[5] + data[7]; | |
2512 | sky2->net_stats.collisions = data[10]; | |
2513 | sky2->net_stats.tx_aborted_errors = data[12]; | |
2514 | ||
2515 | return &sky2->net_stats; | |
2516 | } | |
2517 | ||
2518 | static int sky2_set_mac_address(struct net_device *dev, void *p) | |
2519 | { | |
2520 | struct sky2_port *sky2 = netdev_priv(dev); | |
2521 | struct sockaddr *addr = p; | |
cd28ab6a SH |
2522 | |
2523 | if (!is_valid_ether_addr(addr->sa_data)) | |
2524 | return -EADDRNOTAVAIL; | |
2525 | ||
cd28ab6a | 2526 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); |
793b883e | 2527 | memcpy_toio(sky2->hw->regs + B2_MAC_1 + sky2->port * 8, |
cd28ab6a | 2528 | dev->dev_addr, ETH_ALEN); |
793b883e | 2529 | memcpy_toio(sky2->hw->regs + B2_MAC_2 + sky2->port * 8, |
cd28ab6a | 2530 | dev->dev_addr, ETH_ALEN); |
1b537565 SH |
2531 | |
2532 | if (netif_running(dev)) | |
2533 | sky2_phy_reinit(sky2); | |
2534 | ||
2535 | return 0; | |
cd28ab6a SH |
2536 | } |
2537 | ||
2538 | static void sky2_set_multicast(struct net_device *dev) | |
2539 | { | |
2540 | struct sky2_port *sky2 = netdev_priv(dev); | |
2541 | struct sky2_hw *hw = sky2->hw; | |
2542 | unsigned port = sky2->port; | |
2543 | struct dev_mc_list *list = dev->mc_list; | |
2544 | u16 reg; | |
2545 | u8 filter[8]; | |
2546 | ||
2547 | memset(filter, 0, sizeof(filter)); | |
2548 | ||
2549 | reg = gma_read16(hw, port, GM_RX_CTRL); | |
2550 | reg |= GM_RXCR_UCF_ENA; | |
2551 | ||
d571b694 | 2552 | if (dev->flags & IFF_PROMISC) /* promiscuous */ |
cd28ab6a | 2553 | reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); |
793b883e | 2554 | else if ((dev->flags & IFF_ALLMULTI) || dev->mc_count > 16) /* all multicast */ |
cd28ab6a | 2555 | memset(filter, 0xff, sizeof(filter)); |
793b883e | 2556 | else if (dev->mc_count == 0) /* no multicast */ |
cd28ab6a SH |
2557 | reg &= ~GM_RXCR_MCF_ENA; |
2558 | else { | |
2559 | int i; | |
2560 | reg |= GM_RXCR_MCF_ENA; | |
2561 | ||
2562 | for (i = 0; list && i < dev->mc_count; i++, list = list->next) { | |
2563 | u32 bit = ether_crc(ETH_ALEN, list->dmi_addr) & 0x3f; | |
793b883e | 2564 | filter[bit / 8] |= 1 << (bit % 8); |
cd28ab6a SH |
2565 | } |
2566 | } | |
2567 | ||
cd28ab6a | 2568 | gma_write16(hw, port, GM_MC_ADDR_H1, |
793b883e | 2569 | (u16) filter[0] | ((u16) filter[1] << 8)); |
cd28ab6a | 2570 | gma_write16(hw, port, GM_MC_ADDR_H2, |
793b883e | 2571 | (u16) filter[2] | ((u16) filter[3] << 8)); |
cd28ab6a | 2572 | gma_write16(hw, port, GM_MC_ADDR_H3, |
793b883e | 2573 | (u16) filter[4] | ((u16) filter[5] << 8)); |
cd28ab6a | 2574 | gma_write16(hw, port, GM_MC_ADDR_H4, |
793b883e | 2575 | (u16) filter[6] | ((u16) filter[7] << 8)); |
cd28ab6a SH |
2576 | |
2577 | gma_write16(hw, port, GM_RX_CTRL, reg); | |
2578 | } | |
2579 | ||
2580 | /* Can have one global because blinking is controlled by | |
2581 | * ethtool and that is always under RTNL mutex | |
2582 | */ | |
91c86df5 | 2583 | static void sky2_led(struct sky2_hw *hw, unsigned port, int on) |
cd28ab6a | 2584 | { |
793b883e SH |
2585 | u16 pg; |
2586 | ||
793b883e SH |
2587 | switch (hw->chip_id) { |
2588 | case CHIP_ID_YUKON_XL: | |
2589 | pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
2590 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
2591 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, | |
2592 | on ? (PHY_M_LEDC_LOS_CTRL(1) | | |
2593 | PHY_M_LEDC_INIT_CTRL(7) | | |
2594 | PHY_M_LEDC_STA1_CTRL(7) | | |
2595 | PHY_M_LEDC_STA0_CTRL(7)) | |
2596 | : 0); | |
2597 | ||
2598 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
2599 | break; | |
2600 | ||
2601 | default: | |
2602 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); | |
cd28ab6a | 2603 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, |
793b883e SH |
2604 | on ? PHY_M_LED_MO_DUP(MO_LED_ON) | |
2605 | PHY_M_LED_MO_10(MO_LED_ON) | | |
2606 | PHY_M_LED_MO_100(MO_LED_ON) | | |
cd28ab6a | 2607 | PHY_M_LED_MO_1000(MO_LED_ON) | |
793b883e SH |
2608 | PHY_M_LED_MO_RX(MO_LED_ON) |
2609 | : PHY_M_LED_MO_DUP(MO_LED_OFF) | | |
2610 | PHY_M_LED_MO_10(MO_LED_OFF) | | |
2611 | PHY_M_LED_MO_100(MO_LED_OFF) | | |
cd28ab6a SH |
2612 | PHY_M_LED_MO_1000(MO_LED_OFF) | |
2613 | PHY_M_LED_MO_RX(MO_LED_OFF)); | |
2614 | ||
793b883e | 2615 | } |
cd28ab6a SH |
2616 | } |
2617 | ||
2618 | /* blink LED's for finding board */ | |
2619 | static int sky2_phys_id(struct net_device *dev, u32 data) | |
2620 | { | |
2621 | struct sky2_port *sky2 = netdev_priv(dev); | |
2622 | struct sky2_hw *hw = sky2->hw; | |
2623 | unsigned port = sky2->port; | |
793b883e | 2624 | u16 ledctrl, ledover = 0; |
cd28ab6a | 2625 | long ms; |
91c86df5 | 2626 | int interrupted; |
cd28ab6a SH |
2627 | int onoff = 1; |
2628 | ||
793b883e | 2629 | if (!data || data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ)) |
cd28ab6a SH |
2630 | ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT); |
2631 | else | |
2632 | ms = data * 1000; | |
2633 | ||
2634 | /* save initial values */ | |
91c86df5 | 2635 | down(&sky2->phy_sema); |
793b883e SH |
2636 | if (hw->chip_id == CHIP_ID_YUKON_XL) { |
2637 | u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
2638 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
2639 | ledctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
2640 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
2641 | } else { | |
2642 | ledctrl = gm_phy_read(hw, port, PHY_MARV_LED_CTRL); | |
2643 | ledover = gm_phy_read(hw, port, PHY_MARV_LED_OVER); | |
2644 | } | |
cd28ab6a | 2645 | |
91c86df5 SH |
2646 | interrupted = 0; |
2647 | while (!interrupted && ms > 0) { | |
cd28ab6a SH |
2648 | sky2_led(hw, port, onoff); |
2649 | onoff = !onoff; | |
2650 | ||
91c86df5 SH |
2651 | up(&sky2->phy_sema); |
2652 | interrupted = msleep_interruptible(250); | |
2653 | down(&sky2->phy_sema); | |
2654 | ||
cd28ab6a SH |
2655 | ms -= 250; |
2656 | } | |
2657 | ||
2658 | /* resume regularly scheduled programming */ | |
793b883e SH |
2659 | if (hw->chip_id == CHIP_ID_YUKON_XL) { |
2660 | u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
2661 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
2662 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ledctrl); | |
2663 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
2664 | } else { | |
2665 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl); | |
2666 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover); | |
2667 | } | |
91c86df5 | 2668 | up(&sky2->phy_sema); |
cd28ab6a SH |
2669 | |
2670 | return 0; | |
2671 | } | |
2672 | ||
2673 | static void sky2_get_pauseparam(struct net_device *dev, | |
2674 | struct ethtool_pauseparam *ecmd) | |
2675 | { | |
2676 | struct sky2_port *sky2 = netdev_priv(dev); | |
2677 | ||
2678 | ecmd->tx_pause = sky2->tx_pause; | |
2679 | ecmd->rx_pause = sky2->rx_pause; | |
2680 | ecmd->autoneg = sky2->autoneg; | |
2681 | } | |
2682 | ||
2683 | static int sky2_set_pauseparam(struct net_device *dev, | |
2684 | struct ethtool_pauseparam *ecmd) | |
2685 | { | |
2686 | struct sky2_port *sky2 = netdev_priv(dev); | |
2687 | int err = 0; | |
2688 | ||
2689 | sky2->autoneg = ecmd->autoneg; | |
2690 | sky2->tx_pause = ecmd->tx_pause != 0; | |
2691 | sky2->rx_pause = ecmd->rx_pause != 0; | |
2692 | ||
1b537565 | 2693 | sky2_phy_reinit(sky2); |
cd28ab6a SH |
2694 | |
2695 | return err; | |
2696 | } | |
2697 | ||
2698 | #ifdef CONFIG_PM | |
2699 | static void sky2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
2700 | { | |
2701 | struct sky2_port *sky2 = netdev_priv(dev); | |
2702 | ||
2703 | wol->supported = WAKE_MAGIC; | |
2704 | wol->wolopts = sky2->wol ? WAKE_MAGIC : 0; | |
2705 | } | |
2706 | ||
2707 | static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
2708 | { | |
2709 | struct sky2_port *sky2 = netdev_priv(dev); | |
2710 | struct sky2_hw *hw = sky2->hw; | |
2711 | ||
2712 | if (wol->wolopts != WAKE_MAGIC && wol->wolopts != 0) | |
2713 | return -EOPNOTSUPP; | |
2714 | ||
2715 | sky2->wol = wol->wolopts == WAKE_MAGIC; | |
2716 | ||
2717 | if (sky2->wol) { | |
2718 | memcpy_toio(hw->regs + WOL_MAC_ADDR, dev->dev_addr, ETH_ALEN); | |
2719 | ||
2720 | sky2_write16(hw, WOL_CTRL_STAT, | |
2721 | WOL_CTL_ENA_PME_ON_MAGIC_PKT | | |
2722 | WOL_CTL_ENA_MAGIC_PKT_UNIT); | |
2723 | } else | |
2724 | sky2_write16(hw, WOL_CTRL_STAT, WOL_CTL_DEFAULT); | |
2725 | ||
2726 | return 0; | |
2727 | } | |
2728 | #endif | |
2729 | ||
fb17358f SH |
2730 | static int sky2_get_coalesce(struct net_device *dev, |
2731 | struct ethtool_coalesce *ecmd) | |
2732 | { | |
2733 | struct sky2_port *sky2 = netdev_priv(dev); | |
2734 | struct sky2_hw *hw = sky2->hw; | |
2735 | ||
2736 | if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_STOP) | |
2737 | ecmd->tx_coalesce_usecs = 0; | |
2738 | else { | |
2739 | u32 clks = sky2_read32(hw, STAT_TX_TIMER_INI); | |
2740 | ecmd->tx_coalesce_usecs = sky2_clk2us(hw, clks); | |
2741 | } | |
2742 | ecmd->tx_max_coalesced_frames = sky2_read16(hw, STAT_TX_IDX_TH); | |
2743 | ||
2744 | if (sky2_read8(hw, STAT_LEV_TIMER_CTRL) == TIM_STOP) | |
2745 | ecmd->rx_coalesce_usecs = 0; | |
2746 | else { | |
2747 | u32 clks = sky2_read32(hw, STAT_LEV_TIMER_INI); | |
2748 | ecmd->rx_coalesce_usecs = sky2_clk2us(hw, clks); | |
2749 | } | |
2750 | ecmd->rx_max_coalesced_frames = sky2_read8(hw, STAT_FIFO_WM); | |
2751 | ||
2752 | if (sky2_read8(hw, STAT_ISR_TIMER_CTRL) == TIM_STOP) | |
2753 | ecmd->rx_coalesce_usecs_irq = 0; | |
2754 | else { | |
2755 | u32 clks = sky2_read32(hw, STAT_ISR_TIMER_INI); | |
2756 | ecmd->rx_coalesce_usecs_irq = sky2_clk2us(hw, clks); | |
2757 | } | |
2758 | ||
2759 | ecmd->rx_max_coalesced_frames_irq = sky2_read8(hw, STAT_FIFO_ISR_WM); | |
2760 | ||
2761 | return 0; | |
2762 | } | |
2763 | ||
2764 | /* Note: this affect both ports */ | |
2765 | static int sky2_set_coalesce(struct net_device *dev, | |
2766 | struct ethtool_coalesce *ecmd) | |
2767 | { | |
2768 | struct sky2_port *sky2 = netdev_priv(dev); | |
2769 | struct sky2_hw *hw = sky2->hw; | |
2770 | const u32 tmin = sky2_clk2us(hw, 1); | |
2771 | const u32 tmax = 5000; | |
2772 | ||
2773 | if (ecmd->tx_coalesce_usecs != 0 && | |
2774 | (ecmd->tx_coalesce_usecs < tmin || ecmd->tx_coalesce_usecs > tmax)) | |
2775 | return -EINVAL; | |
2776 | ||
2777 | if (ecmd->rx_coalesce_usecs != 0 && | |
2778 | (ecmd->rx_coalesce_usecs < tmin || ecmd->rx_coalesce_usecs > tmax)) | |
2779 | return -EINVAL; | |
2780 | ||
2781 | if (ecmd->rx_coalesce_usecs_irq != 0 && | |
2782 | (ecmd->rx_coalesce_usecs_irq < tmin || ecmd->rx_coalesce_usecs_irq > tmax)) | |
2783 | return -EINVAL; | |
2784 | ||
2785 | if (ecmd->tx_max_coalesced_frames > 0xffff) | |
2786 | return -EINVAL; | |
2787 | if (ecmd->rx_max_coalesced_frames > 0xff) | |
2788 | return -EINVAL; | |
2789 | if (ecmd->rx_max_coalesced_frames_irq > 0xff) | |
2790 | return -EINVAL; | |
2791 | ||
2792 | if (ecmd->tx_coalesce_usecs == 0) | |
2793 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP); | |
2794 | else { | |
2795 | sky2_write32(hw, STAT_TX_TIMER_INI, | |
2796 | sky2_us2clk(hw, ecmd->tx_coalesce_usecs)); | |
2797 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); | |
2798 | } | |
2799 | sky2_write16(hw, STAT_TX_IDX_TH, ecmd->tx_max_coalesced_frames); | |
2800 | ||
2801 | if (ecmd->rx_coalesce_usecs == 0) | |
2802 | sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_STOP); | |
2803 | else { | |
2804 | sky2_write32(hw, STAT_LEV_TIMER_INI, | |
2805 | sky2_us2clk(hw, ecmd->rx_coalesce_usecs)); | |
2806 | sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START); | |
2807 | } | |
2808 | sky2_write8(hw, STAT_FIFO_WM, ecmd->rx_max_coalesced_frames); | |
2809 | ||
2810 | if (ecmd->rx_coalesce_usecs_irq == 0) | |
2811 | sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_STOP); | |
2812 | else { | |
2813 | sky2_write32(hw, STAT_TX_TIMER_INI, | |
2814 | sky2_us2clk(hw, ecmd->rx_coalesce_usecs_irq)); | |
2815 | sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START); | |
2816 | } | |
2817 | sky2_write8(hw, STAT_FIFO_ISR_WM, ecmd->rx_max_coalesced_frames_irq); | |
2818 | return 0; | |
2819 | } | |
2820 | ||
793b883e SH |
2821 | static void sky2_get_ringparam(struct net_device *dev, |
2822 | struct ethtool_ringparam *ering) | |
2823 | { | |
2824 | struct sky2_port *sky2 = netdev_priv(dev); | |
2825 | ||
2826 | ering->rx_max_pending = RX_MAX_PENDING; | |
2827 | ering->rx_mini_max_pending = 0; | |
2828 | ering->rx_jumbo_max_pending = 0; | |
2829 | ering->tx_max_pending = TX_RING_SIZE - 1; | |
2830 | ||
2831 | ering->rx_pending = sky2->rx_pending; | |
2832 | ering->rx_mini_pending = 0; | |
2833 | ering->rx_jumbo_pending = 0; | |
2834 | ering->tx_pending = sky2->tx_pending; | |
2835 | } | |
2836 | ||
2837 | static int sky2_set_ringparam(struct net_device *dev, | |
2838 | struct ethtool_ringparam *ering) | |
2839 | { | |
2840 | struct sky2_port *sky2 = netdev_priv(dev); | |
2841 | int err = 0; | |
2842 | ||
2843 | if (ering->rx_pending > RX_MAX_PENDING || | |
2844 | ering->rx_pending < 8 || | |
2845 | ering->tx_pending < MAX_SKB_TX_LE || | |
2846 | ering->tx_pending > TX_RING_SIZE - 1) | |
2847 | return -EINVAL; | |
2848 | ||
2849 | if (netif_running(dev)) | |
2850 | sky2_down(dev); | |
2851 | ||
2852 | sky2->rx_pending = ering->rx_pending; | |
2853 | sky2->tx_pending = ering->tx_pending; | |
2854 | ||
1b537565 | 2855 | if (netif_running(dev)) { |
793b883e | 2856 | err = sky2_up(dev); |
1b537565 SH |
2857 | if (err) |
2858 | dev_close(dev); | |
6ed995bb SH |
2859 | else |
2860 | sky2_set_multicast(dev); | |
1b537565 | 2861 | } |
793b883e SH |
2862 | |
2863 | return err; | |
2864 | } | |
2865 | ||
793b883e SH |
2866 | static int sky2_get_regs_len(struct net_device *dev) |
2867 | { | |
6e4cbb34 | 2868 | return 0x4000; |
793b883e SH |
2869 | } |
2870 | ||
2871 | /* | |
2872 | * Returns copy of control register region | |
6e4cbb34 | 2873 | * Note: access to the RAM address register set will cause timeouts. |
793b883e SH |
2874 | */ |
2875 | static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
2876 | void *p) | |
2877 | { | |
2878 | const struct sky2_port *sky2 = netdev_priv(dev); | |
793b883e | 2879 | const void __iomem *io = sky2->hw->regs; |
793b883e | 2880 | |
6e4cbb34 | 2881 | BUG_ON(regs->len < B3_RI_WTO_R1); |
793b883e | 2882 | regs->version = 1; |
6e4cbb34 | 2883 | memset(p, 0, regs->len); |
793b883e | 2884 | |
6e4cbb34 SH |
2885 | memcpy_fromio(p, io, B3_RAM_ADDR); |
2886 | ||
2887 | memcpy_fromio(p + B3_RI_WTO_R1, | |
2888 | io + B3_RI_WTO_R1, | |
2889 | regs->len - B3_RI_WTO_R1); | |
793b883e | 2890 | } |
cd28ab6a SH |
2891 | |
2892 | static struct ethtool_ops sky2_ethtool_ops = { | |
793b883e SH |
2893 | .get_settings = sky2_get_settings, |
2894 | .set_settings = sky2_set_settings, | |
2895 | .get_drvinfo = sky2_get_drvinfo, | |
2896 | .get_msglevel = sky2_get_msglevel, | |
2897 | .set_msglevel = sky2_set_msglevel, | |
9a7ae0a9 | 2898 | .nway_reset = sky2_nway_reset, |
793b883e SH |
2899 | .get_regs_len = sky2_get_regs_len, |
2900 | .get_regs = sky2_get_regs, | |
2901 | .get_link = ethtool_op_get_link, | |
2902 | .get_sg = ethtool_op_get_sg, | |
2903 | .set_sg = ethtool_op_set_sg, | |
2904 | .get_tx_csum = ethtool_op_get_tx_csum, | |
2905 | .set_tx_csum = ethtool_op_set_tx_csum, | |
2906 | .get_tso = ethtool_op_get_tso, | |
2907 | .set_tso = ethtool_op_set_tso, | |
2908 | .get_rx_csum = sky2_get_rx_csum, | |
2909 | .set_rx_csum = sky2_set_rx_csum, | |
2910 | .get_strings = sky2_get_strings, | |
fb17358f SH |
2911 | .get_coalesce = sky2_get_coalesce, |
2912 | .set_coalesce = sky2_set_coalesce, | |
793b883e SH |
2913 | .get_ringparam = sky2_get_ringparam, |
2914 | .set_ringparam = sky2_set_ringparam, | |
cd28ab6a SH |
2915 | .get_pauseparam = sky2_get_pauseparam, |
2916 | .set_pauseparam = sky2_set_pauseparam, | |
2917 | #ifdef CONFIG_PM | |
793b883e SH |
2918 | .get_wol = sky2_get_wol, |
2919 | .set_wol = sky2_set_wol, | |
cd28ab6a | 2920 | #endif |
793b883e | 2921 | .phys_id = sky2_phys_id, |
cd28ab6a SH |
2922 | .get_stats_count = sky2_get_stats_count, |
2923 | .get_ethtool_stats = sky2_get_ethtool_stats, | |
2995bfb7 | 2924 | .get_perm_addr = ethtool_op_get_perm_addr, |
cd28ab6a SH |
2925 | }; |
2926 | ||
2927 | /* Initialize network device */ | |
2928 | static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw, | |
2929 | unsigned port, int highmem) | |
2930 | { | |
2931 | struct sky2_port *sky2; | |
2932 | struct net_device *dev = alloc_etherdev(sizeof(*sky2)); | |
2933 | ||
2934 | if (!dev) { | |
2935 | printk(KERN_ERR "sky2 etherdev alloc failed"); | |
2936 | return NULL; | |
2937 | } | |
2938 | ||
2939 | SET_MODULE_OWNER(dev); | |
2940 | SET_NETDEV_DEV(dev, &hw->pdev->dev); | |
ef743d33 | 2941 | dev->irq = hw->pdev->irq; |
cd28ab6a SH |
2942 | dev->open = sky2_up; |
2943 | dev->stop = sky2_down; | |
ef743d33 | 2944 | dev->do_ioctl = sky2_ioctl; |
cd28ab6a SH |
2945 | dev->hard_start_xmit = sky2_xmit_frame; |
2946 | dev->get_stats = sky2_get_stats; | |
2947 | dev->set_multicast_list = sky2_set_multicast; | |
2948 | dev->set_mac_address = sky2_set_mac_address; | |
2949 | dev->change_mtu = sky2_change_mtu; | |
2950 | SET_ETHTOOL_OPS(dev, &sky2_ethtool_ops); | |
2951 | dev->tx_timeout = sky2_tx_timeout; | |
2952 | dev->watchdog_timeo = TX_WATCHDOG; | |
2953 | if (port == 0) | |
2954 | dev->poll = sky2_poll; | |
2955 | dev->weight = NAPI_WEIGHT; | |
2956 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2957 | dev->poll_controller = sky2_netpoll; | |
2958 | #endif | |
cd28ab6a SH |
2959 | |
2960 | sky2 = netdev_priv(dev); | |
2961 | sky2->netdev = dev; | |
2962 | sky2->hw = hw; | |
2963 | sky2->msg_enable = netif_msg_init(debug, default_msg); | |
2964 | ||
2965 | spin_lock_init(&sky2->tx_lock); | |
2966 | /* Auto speed and flow control */ | |
2967 | sky2->autoneg = AUTONEG_ENABLE; | |
585b5601 | 2968 | sky2->tx_pause = 1; |
cd28ab6a SH |
2969 | sky2->rx_pause = 1; |
2970 | sky2->duplex = -1; | |
2971 | sky2->speed = -1; | |
2972 | sky2->advertising = sky2_supported_modes(hw); | |
75d070c5 SH |
2973 | |
2974 | /* Receive checksum disabled for Yukon XL | |
2975 | * because of observed problems with incorrect | |
2976 | * values when multiple packets are received in one interrupt | |
2977 | */ | |
2978 | sky2->rx_csum = (hw->chip_id != CHIP_ID_YUKON_XL); | |
2979 | ||
91c86df5 SH |
2980 | INIT_WORK(&sky2->phy_task, sky2_phy_task, sky2); |
2981 | init_MUTEX(&sky2->phy_sema); | |
793b883e SH |
2982 | sky2->tx_pending = TX_DEF_PENDING; |
2983 | sky2->rx_pending = is_ec_a1(hw) ? 8 : RX_DEF_PENDING; | |
734d1868 | 2984 | sky2->rx_bufsize = sky2_buf_size(ETH_DATA_LEN); |
cd28ab6a SH |
2985 | |
2986 | hw->dev[port] = dev; | |
2987 | ||
2988 | sky2->port = port; | |
2989 | ||
5a5b1ea0 SH |
2990 | dev->features |= NETIF_F_LLTX; |
2991 | if (hw->chip_id != CHIP_ID_YUKON_EC_U) | |
2992 | dev->features |= NETIF_F_TSO; | |
cd28ab6a SH |
2993 | if (highmem) |
2994 | dev->features |= NETIF_F_HIGHDMA; | |
793b883e | 2995 | dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; |
cd28ab6a | 2996 | |
d1f13708 SH |
2997 | #ifdef SKY2_VLAN_TAG_USED |
2998 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
2999 | dev->vlan_rx_register = sky2_vlan_rx_register; | |
3000 | dev->vlan_rx_kill_vid = sky2_vlan_rx_kill_vid; | |
3001 | #endif | |
3002 | ||
cd28ab6a | 3003 | /* read the mac address */ |
793b883e | 3004 | memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN); |
2995bfb7 | 3005 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
cd28ab6a SH |
3006 | |
3007 | /* device is off until link detection */ | |
3008 | netif_carrier_off(dev); | |
3009 | netif_stop_queue(dev); | |
3010 | ||
3011 | return dev; | |
3012 | } | |
3013 | ||
3014 | static inline void sky2_show_addr(struct net_device *dev) | |
3015 | { | |
3016 | const struct sky2_port *sky2 = netdev_priv(dev); | |
3017 | ||
3018 | if (netif_msg_probe(sky2)) | |
3019 | printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n", | |
3020 | dev->name, | |
3021 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], | |
3022 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); | |
3023 | } | |
3024 | ||
3025 | static int __devinit sky2_probe(struct pci_dev *pdev, | |
3026 | const struct pci_device_id *ent) | |
3027 | { | |
793b883e | 3028 | struct net_device *dev, *dev1 = NULL; |
cd28ab6a | 3029 | struct sky2_hw *hw; |
5afa0a9c | 3030 | int err, pm_cap, using_dac = 0; |
cd28ab6a | 3031 | |
793b883e SH |
3032 | err = pci_enable_device(pdev); |
3033 | if (err) { | |
cd28ab6a SH |
3034 | printk(KERN_ERR PFX "%s cannot enable PCI device\n", |
3035 | pci_name(pdev)); | |
3036 | goto err_out; | |
3037 | } | |
3038 | ||
793b883e SH |
3039 | err = pci_request_regions(pdev, DRV_NAME); |
3040 | if (err) { | |
cd28ab6a SH |
3041 | printk(KERN_ERR PFX "%s cannot obtain PCI resources\n", |
3042 | pci_name(pdev)); | |
793b883e | 3043 | goto err_out; |
cd28ab6a SH |
3044 | } |
3045 | ||
3046 | pci_set_master(pdev); | |
3047 | ||
5afa0a9c SH |
3048 | /* Find power-management capability. */ |
3049 | pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM); | |
3050 | if (pm_cap == 0) { | |
3051 | printk(KERN_ERR PFX "Cannot find PowerManagement capability, " | |
3052 | "aborting.\n"); | |
3053 | err = -EIO; | |
3054 | goto err_out_free_regions; | |
3055 | } | |
3056 | ||
d1f3d4dd SH |
3057 | if (sizeof(dma_addr_t) > sizeof(u32) && |
3058 | !(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) { | |
3059 | using_dac = 1; | |
3060 | err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); | |
3061 | if (err < 0) { | |
3062 | printk(KERN_ERR PFX "%s unable to obtain 64 bit DMA " | |
3063 | "for consistent allocations\n", pci_name(pdev)); | |
3064 | goto err_out_free_regions; | |
3065 | } | |
cd28ab6a | 3066 | |
d1f3d4dd | 3067 | } else { |
cd28ab6a SH |
3068 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
3069 | if (err) { | |
3070 | printk(KERN_ERR PFX "%s no usable DMA configuration\n", | |
3071 | pci_name(pdev)); | |
3072 | goto err_out_free_regions; | |
3073 | } | |
3074 | } | |
d1f3d4dd | 3075 | |
cd28ab6a | 3076 | #ifdef __BIG_ENDIAN |
d571b694 | 3077 | /* byte swap descriptors in hardware */ |
cd28ab6a SH |
3078 | { |
3079 | u32 reg; | |
3080 | ||
3081 | pci_read_config_dword(pdev, PCI_DEV_REG2, ®); | |
3082 | reg |= PCI_REV_DESC; | |
3083 | pci_write_config_dword(pdev, PCI_DEV_REG2, reg); | |
3084 | } | |
3085 | #endif | |
3086 | ||
3087 | err = -ENOMEM; | |
3088 | hw = kmalloc(sizeof(*hw), GFP_KERNEL); | |
3089 | if (!hw) { | |
3090 | printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n", | |
3091 | pci_name(pdev)); | |
3092 | goto err_out_free_regions; | |
3093 | } | |
3094 | ||
3095 | memset(hw, 0, sizeof(*hw)); | |
3096 | hw->pdev = pdev; | |
cd28ab6a SH |
3097 | |
3098 | hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000); | |
3099 | if (!hw->regs) { | |
3100 | printk(KERN_ERR PFX "%s: cannot map device registers\n", | |
3101 | pci_name(pdev)); | |
3102 | goto err_out_free_hw; | |
3103 | } | |
5afa0a9c | 3104 | hw->pm_cap = pm_cap; |
cd28ab6a | 3105 | |
cd28ab6a SH |
3106 | err = sky2_reset(hw); |
3107 | if (err) | |
793b883e | 3108 | goto err_out_iounmap; |
cd28ab6a | 3109 | |
5f4f9dc1 SH |
3110 | printk(KERN_INFO PFX "v%s addr 0x%lx irq %d Yukon-%s (0x%x) rev %d\n", |
3111 | DRV_VERSION, pci_resource_start(pdev, 0), pdev->irq, | |
92f965e8 | 3112 | yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL], |
793b883e | 3113 | hw->chip_id, hw->chip_rev); |
cd28ab6a | 3114 | |
793b883e SH |
3115 | dev = sky2_init_netdev(hw, 0, using_dac); |
3116 | if (!dev) | |
cd28ab6a SH |
3117 | goto err_out_free_pci; |
3118 | ||
793b883e SH |
3119 | err = register_netdev(dev); |
3120 | if (err) { | |
cd28ab6a SH |
3121 | printk(KERN_ERR PFX "%s: cannot register net device\n", |
3122 | pci_name(pdev)); | |
3123 | goto err_out_free_netdev; | |
3124 | } | |
3125 | ||
3126 | sky2_show_addr(dev); | |
3127 | ||
3128 | if (hw->ports > 1 && (dev1 = sky2_init_netdev(hw, 1, using_dac))) { | |
3129 | if (register_netdev(dev1) == 0) | |
3130 | sky2_show_addr(dev1); | |
3131 | else { | |
3132 | /* Failure to register second port need not be fatal */ | |
793b883e SH |
3133 | printk(KERN_WARNING PFX |
3134 | "register of second port failed\n"); | |
cd28ab6a SH |
3135 | hw->dev[1] = NULL; |
3136 | free_netdev(dev1); | |
3137 | } | |
3138 | } | |
3139 | ||
793b883e SH |
3140 | err = request_irq(pdev->irq, sky2_intr, SA_SHIRQ, DRV_NAME, hw); |
3141 | if (err) { | |
3142 | printk(KERN_ERR PFX "%s: cannot assign irq %d\n", | |
3143 | pci_name(pdev), pdev->irq); | |
3144 | goto err_out_unregister; | |
3145 | } | |
3146 | ||
3147 | hw->intr_mask = Y2_IS_BASE; | |
3148 | sky2_write32(hw, B0_IMSK, hw->intr_mask); | |
3149 | ||
3150 | pci_set_drvdata(pdev, hw); | |
3151 | ||
cd28ab6a SH |
3152 | return 0; |
3153 | ||
793b883e SH |
3154 | err_out_unregister: |
3155 | if (dev1) { | |
3156 | unregister_netdev(dev1); | |
3157 | free_netdev(dev1); | |
3158 | } | |
3159 | unregister_netdev(dev); | |
cd28ab6a SH |
3160 | err_out_free_netdev: |
3161 | free_netdev(dev); | |
cd28ab6a | 3162 | err_out_free_pci: |
793b883e | 3163 | sky2_write8(hw, B0_CTST, CS_RST_SET); |
cd28ab6a SH |
3164 | pci_free_consistent(hw->pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma); |
3165 | err_out_iounmap: | |
3166 | iounmap(hw->regs); | |
3167 | err_out_free_hw: | |
3168 | kfree(hw); | |
3169 | err_out_free_regions: | |
3170 | pci_release_regions(pdev); | |
cd28ab6a | 3171 | pci_disable_device(pdev); |
cd28ab6a SH |
3172 | err_out: |
3173 | return err; | |
3174 | } | |
3175 | ||
3176 | static void __devexit sky2_remove(struct pci_dev *pdev) | |
3177 | { | |
793b883e | 3178 | struct sky2_hw *hw = pci_get_drvdata(pdev); |
cd28ab6a SH |
3179 | struct net_device *dev0, *dev1; |
3180 | ||
793b883e | 3181 | if (!hw) |
cd28ab6a SH |
3182 | return; |
3183 | ||
cd28ab6a | 3184 | dev0 = hw->dev[0]; |
793b883e SH |
3185 | dev1 = hw->dev[1]; |
3186 | if (dev1) | |
3187 | unregister_netdev(dev1); | |
cd28ab6a SH |
3188 | unregister_netdev(dev0); |
3189 | ||
793b883e | 3190 | sky2_write32(hw, B0_IMSK, 0); |
5afa0a9c | 3191 | sky2_set_power_state(hw, PCI_D3hot); |
cd28ab6a | 3192 | sky2_write16(hw, B0_Y2LED, LED_STAT_OFF); |
793b883e | 3193 | sky2_write8(hw, B0_CTST, CS_RST_SET); |
5afa0a9c | 3194 | sky2_read8(hw, B0_CTST); |
cd28ab6a SH |
3195 | |
3196 | free_irq(pdev->irq, hw); | |
793b883e | 3197 | pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma); |
cd28ab6a SH |
3198 | pci_release_regions(pdev); |
3199 | pci_disable_device(pdev); | |
793b883e | 3200 | |
cd28ab6a SH |
3201 | if (dev1) |
3202 | free_netdev(dev1); | |
3203 | free_netdev(dev0); | |
3204 | iounmap(hw->regs); | |
3205 | kfree(hw); | |
5afa0a9c | 3206 | |
cd28ab6a SH |
3207 | pci_set_drvdata(pdev, NULL); |
3208 | } | |
3209 | ||
3210 | #ifdef CONFIG_PM | |
3211 | static int sky2_suspend(struct pci_dev *pdev, pm_message_t state) | |
3212 | { | |
793b883e | 3213 | struct sky2_hw *hw = pci_get_drvdata(pdev); |
5afa0a9c | 3214 | int i; |
cd28ab6a SH |
3215 | |
3216 | for (i = 0; i < 2; i++) { | |
3217 | struct net_device *dev = hw->dev[i]; | |
3218 | ||
3219 | if (dev) { | |
5afa0a9c SH |
3220 | if (!netif_running(dev)) |
3221 | continue; | |
3222 | ||
3223 | sky2_down(dev); | |
cd28ab6a | 3224 | netif_device_detach(dev); |
cd28ab6a SH |
3225 | } |
3226 | } | |
3227 | ||
5afa0a9c | 3228 | return sky2_set_power_state(hw, pci_choose_state(pdev, state)); |
cd28ab6a SH |
3229 | } |
3230 | ||
3231 | static int sky2_resume(struct pci_dev *pdev) | |
3232 | { | |
793b883e | 3233 | struct sky2_hw *hw = pci_get_drvdata(pdev); |
cd28ab6a SH |
3234 | int i; |
3235 | ||
cd28ab6a SH |
3236 | pci_restore_state(pdev); |
3237 | pci_enable_wake(pdev, PCI_D0, 0); | |
5afa0a9c | 3238 | sky2_set_power_state(hw, PCI_D0); |
cd28ab6a SH |
3239 | |
3240 | sky2_reset(hw); | |
3241 | ||
3242 | for (i = 0; i < 2; i++) { | |
3243 | struct net_device *dev = hw->dev[i]; | |
3244 | if (dev) { | |
5afa0a9c SH |
3245 | if (netif_running(dev)) { |
3246 | netif_device_attach(dev); | |
1b537565 SH |
3247 | if (sky2_up(dev)) |
3248 | dev_close(dev); | |
5afa0a9c | 3249 | } |
cd28ab6a SH |
3250 | } |
3251 | } | |
3252 | return 0; | |
3253 | } | |
3254 | #endif | |
3255 | ||
3256 | static struct pci_driver sky2_driver = { | |
793b883e SH |
3257 | .name = DRV_NAME, |
3258 | .id_table = sky2_id_table, | |
3259 | .probe = sky2_probe, | |
3260 | .remove = __devexit_p(sky2_remove), | |
cd28ab6a | 3261 | #ifdef CONFIG_PM |
793b883e SH |
3262 | .suspend = sky2_suspend, |
3263 | .resume = sky2_resume, | |
cd28ab6a SH |
3264 | #endif |
3265 | }; | |
3266 | ||
3267 | static int __init sky2_init_module(void) | |
3268 | { | |
50241c4c | 3269 | return pci_register_driver(&sky2_driver); |
cd28ab6a SH |
3270 | } |
3271 | ||
3272 | static void __exit sky2_cleanup_module(void) | |
3273 | { | |
3274 | pci_unregister_driver(&sky2_driver); | |
3275 | } | |
3276 | ||
3277 | module_init(sky2_init_module); | |
3278 | module_exit(sky2_cleanup_module); | |
3279 | ||
3280 | MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver"); | |
3281 | MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>"); | |
3282 | MODULE_LICENSE("GPL"); | |
5f4f9dc1 | 3283 | MODULE_VERSION(DRV_VERSION); |