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Commit | Line | Data |
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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 | |
798b6b19 | 13 | * the Free Software Foundation; either version 2 of the License. |
cd28ab6a SH |
14 | * |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
793b883e | 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
cd28ab6a SH |
18 | * GNU General Public License for more details. |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | */ | |
24 | ||
793b883e | 25 | #include <linux/crc32.h> |
cd28ab6a SH |
26 | #include <linux/kernel.h> |
27 | #include <linux/version.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/netdevice.h> | |
d0bbccfa | 30 | #include <linux/dma-mapping.h> |
cd28ab6a SH |
31 | #include <linux/etherdevice.h> |
32 | #include <linux/ethtool.h> | |
33 | #include <linux/pci.h> | |
34 | #include <linux/ip.h> | |
35 | #include <linux/tcp.h> | |
36 | #include <linux/in.h> | |
37 | #include <linux/delay.h> | |
91c86df5 | 38 | #include <linux/workqueue.h> |
d1f13708 | 39 | #include <linux/if_vlan.h> |
d70cd51a | 40 | #include <linux/prefetch.h> |
ef743d33 | 41 | #include <linux/mii.h> |
cd28ab6a SH |
42 | |
43 | #include <asm/irq.h> | |
44 | ||
d1f13708 SH |
45 | #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) |
46 | #define SKY2_VLAN_TAG_USED 1 | |
47 | #endif | |
48 | ||
cd28ab6a SH |
49 | #include "sky2.h" |
50 | ||
51 | #define DRV_NAME "sky2" | |
52c89cac | 52 | #define DRV_VERSION "1.10" |
cd28ab6a SH |
53 | #define PFX DRV_NAME " " |
54 | ||
55 | /* | |
56 | * The Yukon II chipset takes 64 bit command blocks (called list elements) | |
57 | * that are organized into three (receive, transmit, status) different rings | |
14d0263f | 58 | * similar to Tigon3. |
cd28ab6a SH |
59 | */ |
60 | ||
14d0263f | 61 | #define RX_LE_SIZE 1024 |
cd28ab6a | 62 | #define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le)) |
14d0263f | 63 | #define RX_MAX_PENDING (RX_LE_SIZE/6 - 2) |
13210ce5 | 64 | #define RX_DEF_PENDING RX_MAX_PENDING |
82788c7a | 65 | #define RX_SKB_ALIGN 8 |
22e11703 | 66 | #define RX_BUF_WRITE 16 |
793b883e SH |
67 | |
68 | #define TX_RING_SIZE 512 | |
69 | #define TX_DEF_PENDING (TX_RING_SIZE - 1) | |
70 | #define TX_MIN_PENDING 64 | |
b19666d9 | 71 | #define MAX_SKB_TX_LE (4 + (sizeof(dma_addr_t)/sizeof(u32))*MAX_SKB_FRAGS) |
cd28ab6a | 72 | |
793b883e | 73 | #define STATUS_RING_SIZE 2048 /* 2 ports * (TX + 2*RX) */ |
cd28ab6a | 74 | #define STATUS_LE_BYTES (STATUS_RING_SIZE*sizeof(struct sky2_status_le)) |
cd28ab6a SH |
75 | #define TX_WATCHDOG (5 * HZ) |
76 | #define NAPI_WEIGHT 64 | |
77 | #define PHY_RETRIES 1000 | |
78 | ||
cb5d9547 SH |
79 | #define RING_NEXT(x,s) (((x)+1) & ((s)-1)) |
80 | ||
cd28ab6a | 81 | static const u32 default_msg = |
793b883e SH |
82 | NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK |
83 | | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR | |
3be92a70 | 84 | | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN; |
cd28ab6a | 85 | |
793b883e | 86 | static int debug = -1; /* defaults above */ |
cd28ab6a SH |
87 | module_param(debug, int, 0); |
88 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
89 | ||
14d0263f | 90 | static int copybreak __read_mostly = 128; |
bdb5c58e SH |
91 | module_param(copybreak, int, 0); |
92 | MODULE_PARM_DESC(copybreak, "Receive copy threshold"); | |
93 | ||
fb2690a9 SH |
94 | static int disable_msi = 0; |
95 | module_param(disable_msi, int, 0); | |
96 | MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)"); | |
97 | ||
e561a83b | 98 | static int idle_timeout = 0; |
01bd7564 | 99 | module_param(idle_timeout, int, 0); |
e561a83b | 100 | MODULE_PARM_DESC(idle_timeout, "Watchdog timer for lost interrupts (ms)"); |
01bd7564 | 101 | |
cd28ab6a | 102 | static const struct pci_device_id sky2_id_table[] = { |
e5b74c7d SH |
103 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, /* SK-9Sxx */ |
104 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */ | |
2d2a3871 | 105 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) }, /* DGE-560T */ |
2f4a66ad | 106 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4001) }, /* DGE-550SX */ |
508f89e7 | 107 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B02) }, /* DGE-560SX */ |
e5b74c7d SH |
108 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4340) }, /* 88E8021 */ |
109 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4341) }, /* 88E8022 */ | |
110 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4342) }, /* 88E8061 */ | |
111 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4343) }, /* 88E8062 */ | |
112 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4344) }, /* 88E8021 */ | |
113 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4345) }, /* 88E8022 */ | |
114 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4346) }, /* 88E8061 */ | |
115 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4347) }, /* 88E8062 */ | |
116 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4350) }, /* 88E8035 */ | |
117 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) }, /* 88E8036 */ | |
118 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) }, /* 88E8038 */ | |
119 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4353) }, /* 88E8039 */ | |
120 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4356) }, /* 88EC033 */ | |
121 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) }, /* 88E8052 */ | |
122 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) }, /* 88E8050 */ | |
123 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) }, /* 88E8053 */ | |
124 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) }, /* 88E8055 */ | |
125 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4364) }, /* 88E8056 */ | |
126 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4366) }, /* 88EC036 */ | |
127 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4367) }, /* 88EC032 */ | |
128 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) }, /* 88EC034 */ | |
cd28ab6a SH |
129 | { 0 } |
130 | }; | |
793b883e | 131 | |
cd28ab6a SH |
132 | MODULE_DEVICE_TABLE(pci, sky2_id_table); |
133 | ||
134 | /* Avoid conditionals by using array */ | |
135 | static const unsigned txqaddr[] = { Q_XA1, Q_XA2 }; | |
136 | static const unsigned rxqaddr[] = { Q_R1, Q_R2 }; | |
f4ea431b | 137 | static const u32 portirq_msk[] = { Y2_IS_PORT_1, Y2_IS_PORT_2 }; |
cd28ab6a | 138 | |
92f965e8 SH |
139 | /* This driver supports yukon2 chipset only */ |
140 | static const char *yukon2_name[] = { | |
141 | "XL", /* 0xb3 */ | |
142 | "EC Ultra", /* 0xb4 */ | |
143 | "UNKNOWN", /* 0xb5 */ | |
144 | "EC", /* 0xb6 */ | |
145 | "FE", /* 0xb7 */ | |
793b883e SH |
146 | }; |
147 | ||
793b883e | 148 | /* Access to external PHY */ |
ef743d33 | 149 | static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val) |
cd28ab6a SH |
150 | { |
151 | int i; | |
152 | ||
153 | gma_write16(hw, port, GM_SMI_DATA, val); | |
154 | gma_write16(hw, port, GM_SMI_CTRL, | |
155 | GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) | GM_SMI_CT_REG_AD(reg)); | |
156 | ||
157 | for (i = 0; i < PHY_RETRIES; i++) { | |
cd28ab6a | 158 | if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY)) |
ef743d33 | 159 | return 0; |
793b883e | 160 | udelay(1); |
cd28ab6a | 161 | } |
ef743d33 | 162 | |
793b883e | 163 | printk(KERN_WARNING PFX "%s: phy write timeout\n", hw->dev[port]->name); |
ef743d33 | 164 | return -ETIMEDOUT; |
cd28ab6a SH |
165 | } |
166 | ||
ef743d33 | 167 | static int __gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg, u16 *val) |
cd28ab6a SH |
168 | { |
169 | int i; | |
170 | ||
793b883e | 171 | gma_write16(hw, port, GM_SMI_CTRL, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) |
cd28ab6a SH |
172 | | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD); |
173 | ||
174 | for (i = 0; i < PHY_RETRIES; i++) { | |
ef743d33 SH |
175 | if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) { |
176 | *val = gma_read16(hw, port, GM_SMI_DATA); | |
177 | return 0; | |
178 | } | |
179 | ||
793b883e | 180 | udelay(1); |
cd28ab6a SH |
181 | } |
182 | ||
ef743d33 SH |
183 | return -ETIMEDOUT; |
184 | } | |
185 | ||
186 | static u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg) | |
187 | { | |
188 | u16 v; | |
189 | ||
190 | if (__gm_phy_read(hw, port, reg, &v) != 0) | |
191 | printk(KERN_WARNING PFX "%s: phy read timeout\n", hw->dev[port]->name); | |
192 | return v; | |
cd28ab6a SH |
193 | } |
194 | ||
2ccc99b7 | 195 | static void sky2_set_power_state(struct sky2_hw *hw, pci_power_t state) |
5afa0a9c SH |
196 | { |
197 | u16 power_control; | |
5afa0a9c | 198 | int vaux; |
5afa0a9c SH |
199 | |
200 | pr_debug("sky2_set_power_state %d\n", state); | |
201 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
202 | ||
56a645cc | 203 | power_control = sky2_pci_read16(hw, hw->pm_cap + PCI_PM_PMC); |
08c06d8a | 204 | vaux = (sky2_read16(hw, B0_CTST) & Y2_VAUX_AVAIL) && |
5afa0a9c SH |
205 | (power_control & PCI_PM_CAP_PME_D3cold); |
206 | ||
56a645cc | 207 | power_control = sky2_pci_read16(hw, hw->pm_cap + PCI_PM_CTRL); |
5afa0a9c SH |
208 | |
209 | power_control |= PCI_PM_CTRL_PME_STATUS; | |
210 | power_control &= ~(PCI_PM_CTRL_STATE_MASK); | |
211 | ||
212 | switch (state) { | |
213 | case PCI_D0: | |
214 | /* switch power to VCC (WA for VAUX problem) */ | |
215 | sky2_write8(hw, B0_POWER_CTRL, | |
216 | PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON); | |
217 | ||
218 | /* disable Core Clock Division, */ | |
219 | sky2_write32(hw, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS); | |
220 | ||
221 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) | |
222 | /* enable bits are inverted */ | |
223 | sky2_write8(hw, B2_Y2_CLK_GATE, | |
224 | Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS | | |
225 | Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS | | |
226 | Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS); | |
227 | else | |
228 | sky2_write8(hw, B2_Y2_CLK_GATE, 0); | |
229 | ||
977bdf06 | 230 | if (hw->chip_id == CHIP_ID_YUKON_EC_U) { |
d3bcfbeb SH |
231 | u32 reg1; |
232 | ||
56a645cc SH |
233 | sky2_pci_write32(hw, PCI_DEV_REG3, 0); |
234 | reg1 = sky2_pci_read32(hw, PCI_DEV_REG4); | |
977bdf06 | 235 | reg1 &= P_ASPM_CONTROL_MSK; |
56a645cc SH |
236 | sky2_pci_write32(hw, PCI_DEV_REG4, reg1); |
237 | sky2_pci_write32(hw, PCI_DEV_REG5, 0); | |
977bdf06 SH |
238 | } |
239 | ||
5afa0a9c SH |
240 | break; |
241 | ||
242 | case PCI_D3hot: | |
243 | case PCI_D3cold: | |
5afa0a9c SH |
244 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) |
245 | sky2_write8(hw, B2_Y2_CLK_GATE, 0); | |
246 | else | |
247 | /* enable bits are inverted */ | |
248 | sky2_write8(hw, B2_Y2_CLK_GATE, | |
249 | Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS | | |
250 | Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS | | |
251 | Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS); | |
252 | ||
253 | /* switch power to VAUX */ | |
254 | if (vaux && state != PCI_D3cold) | |
255 | sky2_write8(hw, B0_POWER_CTRL, | |
256 | (PC_VAUX_ENA | PC_VCC_ENA | | |
257 | PC_VAUX_ON | PC_VCC_OFF)); | |
258 | break; | |
259 | default: | |
260 | printk(KERN_ERR PFX "Unknown power state %d\n", state); | |
5afa0a9c SH |
261 | } |
262 | ||
56a645cc | 263 | sky2_pci_write16(hw, hw->pm_cap + PCI_PM_CTRL, power_control); |
5afa0a9c | 264 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
5afa0a9c SH |
265 | } |
266 | ||
d3bcfbeb | 267 | static void sky2_gmac_reset(struct sky2_hw *hw, unsigned port) |
cd28ab6a SH |
268 | { |
269 | u16 reg; | |
270 | ||
271 | /* disable all GMAC IRQ's */ | |
272 | sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); | |
273 | /* disable PHY IRQs */ | |
274 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0); | |
793b883e | 275 | |
cd28ab6a SH |
276 | gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */ |
277 | gma_write16(hw, port, GM_MC_ADDR_H2, 0); | |
278 | gma_write16(hw, port, GM_MC_ADDR_H3, 0); | |
279 | gma_write16(hw, port, GM_MC_ADDR_H4, 0); | |
280 | ||
281 | reg = gma_read16(hw, port, GM_RX_CTRL); | |
282 | reg |= GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA; | |
283 | gma_write16(hw, port, GM_RX_CTRL, reg); | |
284 | } | |
285 | ||
16ad91e1 SH |
286 | /* flow control to advertise bits */ |
287 | static const u16 copper_fc_adv[] = { | |
288 | [FC_NONE] = 0, | |
289 | [FC_TX] = PHY_M_AN_ASP, | |
290 | [FC_RX] = PHY_M_AN_PC, | |
291 | [FC_BOTH] = PHY_M_AN_PC | PHY_M_AN_ASP, | |
292 | }; | |
293 | ||
294 | /* flow control to advertise bits when using 1000BaseX */ | |
295 | static const u16 fiber_fc_adv[] = { | |
296 | [FC_BOTH] = PHY_M_P_BOTH_MD_X, | |
297 | [FC_TX] = PHY_M_P_ASYM_MD_X, | |
298 | [FC_RX] = PHY_M_P_SYM_MD_X, | |
299 | [FC_NONE] = PHY_M_P_NO_PAUSE_X, | |
300 | }; | |
301 | ||
302 | /* flow control to GMA disable bits */ | |
303 | static const u16 gm_fc_disable[] = { | |
304 | [FC_NONE] = GM_GPCR_FC_RX_DIS | GM_GPCR_FC_TX_DIS, | |
305 | [FC_TX] = GM_GPCR_FC_RX_DIS, | |
306 | [FC_RX] = GM_GPCR_FC_TX_DIS, | |
307 | [FC_BOTH] = 0, | |
308 | }; | |
309 | ||
310 | ||
cd28ab6a SH |
311 | static void sky2_phy_init(struct sky2_hw *hw, unsigned port) |
312 | { | |
313 | struct sky2_port *sky2 = netdev_priv(hw->dev[port]); | |
2eaba1a2 | 314 | u16 ctrl, ct1000, adv, pg, ledctrl, ledover, reg; |
cd28ab6a | 315 | |
ed6d32c7 | 316 | if (sky2->autoneg == AUTONEG_ENABLE && |
86a31a75 | 317 | !(hw->chip_id == CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U)) { |
cd28ab6a SH |
318 | u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL); |
319 | ||
320 | ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK | | |
793b883e | 321 | PHY_M_EC_MAC_S_MSK); |
cd28ab6a SH |
322 | ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ); |
323 | ||
324 | if (hw->chip_id == CHIP_ID_YUKON_EC) | |
325 | ectrl |= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA; | |
326 | else | |
327 | ectrl |= PHY_M_EC_M_DSC(2) | PHY_M_EC_S_DSC(3); | |
328 | ||
329 | gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl); | |
330 | } | |
331 | ||
332 | ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
b89165f2 | 333 | if (sky2_is_copper(hw)) { |
cd28ab6a SH |
334 | if (hw->chip_id == CHIP_ID_YUKON_FE) { |
335 | /* enable automatic crossover */ | |
336 | ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1; | |
337 | } else { | |
338 | /* disable energy detect */ | |
339 | ctrl &= ~PHY_M_PC_EN_DET_MSK; | |
340 | ||
341 | /* enable automatic crossover */ | |
342 | ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO); | |
343 | ||
344 | if (sky2->autoneg == AUTONEG_ENABLE && | |
ed6d32c7 | 345 | (hw->chip_id == CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U)) { |
cd28ab6a SH |
346 | ctrl &= ~PHY_M_PC_DSC_MSK; |
347 | ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA; | |
348 | } | |
349 | } | |
cd28ab6a SH |
350 | } else { |
351 | /* workaround for deviation #4.88 (CRC errors) */ | |
352 | /* disable Automatic Crossover */ | |
353 | ||
354 | ctrl &= ~PHY_M_PC_MDIX_MSK; | |
b89165f2 | 355 | } |
cd28ab6a | 356 | |
b89165f2 SH |
357 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); |
358 | ||
359 | /* special setup for PHY 88E1112 Fiber */ | |
360 | if (hw->chip_id == CHIP_ID_YUKON_XL && !sky2_is_copper(hw)) { | |
361 | pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
cd28ab6a | 362 | |
b89165f2 SH |
363 | /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */ |
364 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2); | |
365 | ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
366 | ctrl &= ~PHY_M_MAC_MD_MSK; | |
367 | ctrl |= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX); | |
368 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); | |
369 | ||
370 | if (hw->pmd_type == 'P') { | |
cd28ab6a SH |
371 | /* select page 1 to access Fiber registers */ |
372 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 1); | |
b89165f2 SH |
373 | |
374 | /* for SFP-module set SIGDET polarity to low */ | |
375 | ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
376 | ctrl |= PHY_M_FIB_SIGD_POL; | |
377 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
cd28ab6a | 378 | } |
b89165f2 SH |
379 | |
380 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
cd28ab6a SH |
381 | } |
382 | ||
7800fddc | 383 | ctrl = PHY_CT_RESET; |
cd28ab6a SH |
384 | ct1000 = 0; |
385 | adv = PHY_AN_CSMA; | |
2eaba1a2 | 386 | reg = 0; |
cd28ab6a SH |
387 | |
388 | if (sky2->autoneg == AUTONEG_ENABLE) { | |
b89165f2 | 389 | if (sky2_is_copper(hw)) { |
cd28ab6a SH |
390 | if (sky2->advertising & ADVERTISED_1000baseT_Full) |
391 | ct1000 |= PHY_M_1000C_AFD; | |
392 | if (sky2->advertising & ADVERTISED_1000baseT_Half) | |
393 | ct1000 |= PHY_M_1000C_AHD; | |
394 | if (sky2->advertising & ADVERTISED_100baseT_Full) | |
395 | adv |= PHY_M_AN_100_FD; | |
396 | if (sky2->advertising & ADVERTISED_100baseT_Half) | |
397 | adv |= PHY_M_AN_100_HD; | |
398 | if (sky2->advertising & ADVERTISED_10baseT_Full) | |
399 | adv |= PHY_M_AN_10_FD; | |
400 | if (sky2->advertising & ADVERTISED_10baseT_Half) | |
401 | adv |= PHY_M_AN_10_HD; | |
709c6e7b | 402 | |
16ad91e1 | 403 | adv |= copper_fc_adv[sky2->flow_mode]; |
b89165f2 SH |
404 | } else { /* special defines for FIBER (88E1040S only) */ |
405 | if (sky2->advertising & ADVERTISED_1000baseT_Full) | |
406 | adv |= PHY_M_AN_1000X_AFD; | |
407 | if (sky2->advertising & ADVERTISED_1000baseT_Half) | |
408 | adv |= PHY_M_AN_1000X_AHD; | |
cd28ab6a | 409 | |
16ad91e1 | 410 | adv |= fiber_fc_adv[sky2->flow_mode]; |
709c6e7b | 411 | } |
cd28ab6a SH |
412 | |
413 | /* Restart Auto-negotiation */ | |
414 | ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG; | |
415 | } else { | |
416 | /* forced speed/duplex settings */ | |
417 | ct1000 = PHY_M_1000C_MSE; | |
418 | ||
2eaba1a2 SH |
419 | /* Disable auto update for duplex flow control and speed */ |
420 | reg |= GM_GPCR_AU_ALL_DIS; | |
cd28ab6a SH |
421 | |
422 | switch (sky2->speed) { | |
423 | case SPEED_1000: | |
424 | ctrl |= PHY_CT_SP1000; | |
2eaba1a2 | 425 | reg |= GM_GPCR_SPEED_1000; |
cd28ab6a SH |
426 | break; |
427 | case SPEED_100: | |
428 | ctrl |= PHY_CT_SP100; | |
2eaba1a2 | 429 | reg |= GM_GPCR_SPEED_100; |
cd28ab6a SH |
430 | break; |
431 | } | |
432 | ||
2eaba1a2 SH |
433 | if (sky2->duplex == DUPLEX_FULL) { |
434 | reg |= GM_GPCR_DUP_FULL; | |
435 | ctrl |= PHY_CT_DUP_MD; | |
16ad91e1 SH |
436 | } else if (sky2->speed < SPEED_1000) |
437 | sky2->flow_mode = FC_NONE; | |
2eaba1a2 | 438 | |
2eaba1a2 | 439 | |
16ad91e1 | 440 | reg |= gm_fc_disable[sky2->flow_mode]; |
2eaba1a2 SH |
441 | |
442 | /* Forward pause packets to GMAC? */ | |
16ad91e1 | 443 | if (sky2->flow_mode & FC_RX) |
2eaba1a2 SH |
444 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); |
445 | else | |
446 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); | |
cd28ab6a SH |
447 | } |
448 | ||
2eaba1a2 SH |
449 | gma_write16(hw, port, GM_GP_CTRL, reg); |
450 | ||
cd28ab6a SH |
451 | if (hw->chip_id != CHIP_ID_YUKON_FE) |
452 | gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000); | |
453 | ||
454 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv); | |
455 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
456 | ||
457 | /* Setup Phy LED's */ | |
458 | ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS); | |
459 | ledover = 0; | |
460 | ||
461 | switch (hw->chip_id) { | |
462 | case CHIP_ID_YUKON_FE: | |
463 | /* on 88E3082 these bits are at 11..9 (shifted left) */ | |
464 | ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1; | |
465 | ||
466 | ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR); | |
467 | ||
468 | /* delete ACT LED control bits */ | |
469 | ctrl &= ~PHY_M_FELP_LED1_MSK; | |
470 | /* change ACT LED control to blink mode */ | |
471 | ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL); | |
472 | gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl); | |
473 | break; | |
474 | ||
475 | case CHIP_ID_YUKON_XL: | |
793b883e | 476 | pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); |
cd28ab6a SH |
477 | |
478 | /* select page 3 to access LED control register */ | |
479 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
480 | ||
481 | /* set LED Function Control register */ | |
ed6d32c7 SH |
482 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, |
483 | (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */ | |
484 | PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */ | |
485 | PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */ | |
486 | PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */ | |
cd28ab6a SH |
487 | |
488 | /* set Polarity Control register */ | |
489 | gm_phy_write(hw, port, PHY_MARV_PHY_STAT, | |
793b883e SH |
490 | (PHY_M_POLC_LS1_P_MIX(4) | |
491 | PHY_M_POLC_IS0_P_MIX(4) | | |
492 | PHY_M_POLC_LOS_CTRL(2) | | |
493 | PHY_M_POLC_INIT_CTRL(2) | | |
494 | PHY_M_POLC_STA1_CTRL(2) | | |
495 | PHY_M_POLC_STA0_CTRL(2))); | |
cd28ab6a SH |
496 | |
497 | /* restore page register */ | |
793b883e | 498 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); |
cd28ab6a | 499 | break; |
ed6d32c7 SH |
500 | case CHIP_ID_YUKON_EC_U: |
501 | pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
502 | ||
503 | /* select page 3 to access LED control register */ | |
504 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
505 | ||
506 | /* set LED Function Control register */ | |
507 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, | |
508 | (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */ | |
509 | PHY_M_LEDC_INIT_CTRL(8) | /* 10 Mbps */ | |
510 | PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */ | |
511 | PHY_M_LEDC_STA0_CTRL(7)));/* 1000 Mbps */ | |
512 | ||
513 | /* set Blink Rate in LED Timer Control Register */ | |
514 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, | |
515 | ledctrl | PHY_M_LED_BLINK_RT(BLINK_84MS)); | |
516 | /* restore page register */ | |
517 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
518 | break; | |
cd28ab6a SH |
519 | |
520 | default: | |
521 | /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */ | |
522 | ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL; | |
523 | /* turn off the Rx LED (LED_RX) */ | |
524 | ledover |= PHY_M_LED_MO_RX(MO_LED_OFF); | |
525 | } | |
526 | ||
ed6d32c7 | 527 | if (hw->chip_id == CHIP_ID_YUKON_EC_U && hw->chip_rev == CHIP_REV_YU_EC_A1) { |
977bdf06 | 528 | /* apply fixes in PHY AFE */ |
ed6d32c7 SH |
529 | pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); |
530 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 255); | |
531 | ||
977bdf06 | 532 | /* increase differential signal amplitude in 10BASE-T */ |
ed6d32c7 SH |
533 | gm_phy_write(hw, port, 0x18, 0xaa99); |
534 | gm_phy_write(hw, port, 0x17, 0x2011); | |
cd28ab6a | 535 | |
977bdf06 | 536 | /* fix for IEEE A/B Symmetry failure in 1000BASE-T */ |
ed6d32c7 SH |
537 | gm_phy_write(hw, port, 0x18, 0xa204); |
538 | gm_phy_write(hw, port, 0x17, 0x2002); | |
977bdf06 SH |
539 | |
540 | /* set page register to 0 */ | |
ed6d32c7 | 541 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); |
977bdf06 SH |
542 | } else { |
543 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl); | |
cd28ab6a | 544 | |
977bdf06 SH |
545 | if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) { |
546 | /* turn on 100 Mbps LED (LED_LINK100) */ | |
547 | ledover |= PHY_M_LED_MO_100(MO_LED_ON); | |
548 | } | |
cd28ab6a | 549 | |
977bdf06 SH |
550 | if (ledover) |
551 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover); | |
552 | ||
553 | } | |
2eaba1a2 | 554 | |
d571b694 | 555 | /* Enable phy interrupt on auto-negotiation complete (or link up) */ |
cd28ab6a SH |
556 | if (sky2->autoneg == AUTONEG_ENABLE) |
557 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL); | |
558 | else | |
559 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK); | |
560 | } | |
561 | ||
d3bcfbeb SH |
562 | static void sky2_phy_power(struct sky2_hw *hw, unsigned port, int onoff) |
563 | { | |
564 | u32 reg1; | |
565 | static const u32 phy_power[] | |
566 | = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD }; | |
567 | ||
568 | /* looks like this XL is back asswards .. */ | |
569 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) | |
570 | onoff = !onoff; | |
571 | ||
572 | reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); | |
573 | ||
574 | if (onoff) | |
575 | /* Turn off phy power saving */ | |
576 | reg1 &= ~phy_power[port]; | |
577 | else | |
578 | reg1 |= phy_power[port]; | |
579 | ||
580 | sky2_pci_write32(hw, PCI_DEV_REG1, reg1); | |
98232f85 | 581 | sky2_pci_read32(hw, PCI_DEV_REG1); |
d3bcfbeb SH |
582 | udelay(100); |
583 | } | |
584 | ||
1b537565 SH |
585 | /* Force a renegotiation */ |
586 | static void sky2_phy_reinit(struct sky2_port *sky2) | |
587 | { | |
e07b1aa8 | 588 | spin_lock_bh(&sky2->phy_lock); |
1b537565 | 589 | sky2_phy_init(sky2->hw, sky2->port); |
e07b1aa8 | 590 | spin_unlock_bh(&sky2->phy_lock); |
1b537565 SH |
591 | } |
592 | ||
cd28ab6a SH |
593 | static void sky2_mac_init(struct sky2_hw *hw, unsigned port) |
594 | { | |
595 | struct sky2_port *sky2 = netdev_priv(hw->dev[port]); | |
596 | u16 reg; | |
597 | int i; | |
598 | const u8 *addr = hw->dev[port]->dev_addr; | |
599 | ||
42eeea01 SH |
600 | sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); |
601 | sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR|GPC_ENA_PAUSE); | |
cd28ab6a SH |
602 | |
603 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); | |
604 | ||
793b883e | 605 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 && port == 1) { |
cd28ab6a SH |
606 | /* WA DEV_472 -- looks like crossed wires on port 2 */ |
607 | /* clear GMAC 1 Control reset */ | |
608 | sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR); | |
609 | do { | |
610 | sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET); | |
611 | sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR); | |
612 | } while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL || | |
613 | gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 || | |
614 | gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0); | |
615 | } | |
616 | ||
793b883e | 617 | sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC)); |
cd28ab6a | 618 | |
2eaba1a2 SH |
619 | /* Enable Transmit FIFO Underrun */ |
620 | sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK); | |
621 | ||
e07b1aa8 | 622 | spin_lock_bh(&sky2->phy_lock); |
cd28ab6a | 623 | sky2_phy_init(hw, port); |
e07b1aa8 | 624 | spin_unlock_bh(&sky2->phy_lock); |
cd28ab6a SH |
625 | |
626 | /* MIB clear */ | |
627 | reg = gma_read16(hw, port, GM_PHY_ADDR); | |
628 | gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR); | |
629 | ||
43f2f104 SH |
630 | for (i = GM_MIB_CNT_BASE; i <= GM_MIB_CNT_END; i += 4) |
631 | gma_read16(hw, port, i); | |
cd28ab6a SH |
632 | gma_write16(hw, port, GM_PHY_ADDR, reg); |
633 | ||
634 | /* transmit control */ | |
635 | gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF)); | |
636 | ||
637 | /* receive control reg: unicast + multicast + no FCS */ | |
638 | gma_write16(hw, port, GM_RX_CTRL, | |
793b883e | 639 | GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA); |
cd28ab6a SH |
640 | |
641 | /* transmit flow control */ | |
642 | gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff); | |
643 | ||
644 | /* transmit parameter */ | |
645 | gma_write16(hw, port, GM_TX_PARAM, | |
646 | TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) | | |
647 | TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) | | |
648 | TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) | | |
649 | TX_BACK_OFF_LIM(TX_BOF_LIM_DEF)); | |
650 | ||
651 | /* serial mode register */ | |
652 | reg = DATA_BLIND_VAL(DATA_BLIND_DEF) | | |
6b1a3aef | 653 | GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); |
cd28ab6a | 654 | |
6b1a3aef | 655 | if (hw->dev[port]->mtu > ETH_DATA_LEN) |
cd28ab6a SH |
656 | reg |= GM_SMOD_JUMBO_ENA; |
657 | ||
658 | gma_write16(hw, port, GM_SERIAL_MODE, reg); | |
659 | ||
cd28ab6a SH |
660 | /* virtual address for data */ |
661 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr); | |
662 | ||
793b883e SH |
663 | /* physical address: used for pause frames */ |
664 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr); | |
665 | ||
666 | /* ignore counter overflows */ | |
cd28ab6a SH |
667 | gma_write16(hw, port, GM_TX_IRQ_MSK, 0); |
668 | gma_write16(hw, port, GM_RX_IRQ_MSK, 0); | |
669 | gma_write16(hw, port, GM_TR_IRQ_MSK, 0); | |
670 | ||
671 | /* Configure Rx MAC FIFO */ | |
672 | sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR); | |
70f1be48 SH |
673 | sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), |
674 | GMF_OPER_ON | GMF_RX_F_FL_ON); | |
cd28ab6a | 675 | |
d571b694 | 676 | /* Flush Rx MAC FIFO on any flow control or error */ |
42eeea01 | 677 | sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR); |
cd28ab6a | 678 | |
8df9a876 SH |
679 | /* Set threshold to 0xa (64 bytes) + 1 to workaround pause bug */ |
680 | sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1); | |
cd28ab6a SH |
681 | |
682 | /* Configure Tx MAC FIFO */ | |
683 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR); | |
684 | sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON); | |
5a5b1ea0 SH |
685 | |
686 | if (hw->chip_id == CHIP_ID_YUKON_EC_U) { | |
8df9a876 | 687 | sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8); |
5a5b1ea0 SH |
688 | sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8); |
689 | if (hw->dev[port]->mtu > ETH_DATA_LEN) { | |
690 | /* set Tx GMAC FIFO Almost Empty Threshold */ | |
691 | sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR), 0x180); | |
692 | /* Disable Store & Forward mode for TX */ | |
693 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_DIS); | |
694 | } | |
695 | } | |
696 | ||
cd28ab6a SH |
697 | } |
698 | ||
67712901 SH |
699 | /* Assign Ram Buffer allocation to queue */ |
700 | static void sky2_ramset(struct sky2_hw *hw, u16 q, u32 start, u32 space) | |
cd28ab6a | 701 | { |
67712901 SH |
702 | u32 end; |
703 | ||
704 | /* convert from K bytes to qwords used for hw register */ | |
705 | start *= 1024/8; | |
706 | space *= 1024/8; | |
707 | end = start + space - 1; | |
793b883e | 708 | |
cd28ab6a SH |
709 | sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR); |
710 | sky2_write32(hw, RB_ADDR(q, RB_START), start); | |
711 | sky2_write32(hw, RB_ADDR(q, RB_END), end); | |
712 | sky2_write32(hw, RB_ADDR(q, RB_WP), start); | |
713 | sky2_write32(hw, RB_ADDR(q, RB_RP), start); | |
714 | ||
715 | if (q == Q_R1 || q == Q_R2) { | |
1c28f6ba | 716 | u32 tp = space - space/4; |
793b883e | 717 | |
1c28f6ba SH |
718 | /* On receive queue's set the thresholds |
719 | * give receiver priority when > 3/4 full | |
720 | * send pause when down to 2K | |
721 | */ | |
722 | sky2_write32(hw, RB_ADDR(q, RB_RX_UTHP), tp); | |
723 | sky2_write32(hw, RB_ADDR(q, RB_RX_LTHP), space/2); | |
793b883e | 724 | |
1c28f6ba SH |
725 | tp = space - 2048/8; |
726 | sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp); | |
727 | sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4); | |
cd28ab6a SH |
728 | } else { |
729 | /* Enable store & forward on Tx queue's because | |
730 | * Tx FIFO is only 1K on Yukon | |
731 | */ | |
732 | sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD); | |
733 | } | |
734 | ||
735 | sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD); | |
793b883e | 736 | sky2_read8(hw, RB_ADDR(q, RB_CTRL)); |
cd28ab6a SH |
737 | } |
738 | ||
cd28ab6a | 739 | /* Setup Bus Memory Interface */ |
af4ed7e6 | 740 | static void sky2_qset(struct sky2_hw *hw, u16 q) |
cd28ab6a SH |
741 | { |
742 | sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET); | |
743 | sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT); | |
744 | sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON); | |
af4ed7e6 | 745 | sky2_write32(hw, Q_ADDR(q, Q_WM), BMU_WM_DEFAULT); |
cd28ab6a SH |
746 | } |
747 | ||
cd28ab6a SH |
748 | /* Setup prefetch unit registers. This is the interface between |
749 | * hardware and driver list elements | |
750 | */ | |
8cc048e3 | 751 | static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr, |
cd28ab6a SH |
752 | u64 addr, u32 last) |
753 | { | |
cd28ab6a SH |
754 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET); |
755 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR); | |
756 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), addr >> 32); | |
757 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), (u32) addr); | |
758 | sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last); | |
759 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON); | |
793b883e SH |
760 | |
761 | sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL)); | |
cd28ab6a SH |
762 | } |
763 | ||
793b883e SH |
764 | static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2) |
765 | { | |
766 | struct sky2_tx_le *le = sky2->tx_le + sky2->tx_prod; | |
767 | ||
cb5d9547 | 768 | sky2->tx_prod = RING_NEXT(sky2->tx_prod, TX_RING_SIZE); |
291ea614 | 769 | le->ctrl = 0; |
793b883e SH |
770 | return le; |
771 | } | |
cd28ab6a | 772 | |
291ea614 SH |
773 | static inline struct tx_ring_info *tx_le_re(struct sky2_port *sky2, |
774 | struct sky2_tx_le *le) | |
775 | { | |
776 | return sky2->tx_ring + (le - sky2->tx_le); | |
777 | } | |
778 | ||
290d4de5 SH |
779 | /* Update chip's next pointer */ |
780 | static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, u16 idx) | |
cd28ab6a | 781 | { |
98232f85 | 782 | q = Y2_QADDR(q, PREF_UNIT_PUT_IDX); |
762c2de2 | 783 | wmb(); |
98232f85 SH |
784 | sky2_write16(hw, q, idx); |
785 | sky2_read16(hw, q); | |
cd28ab6a SH |
786 | } |
787 | ||
793b883e | 788 | |
cd28ab6a SH |
789 | static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2) |
790 | { | |
791 | struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put; | |
cb5d9547 | 792 | sky2->rx_put = RING_NEXT(sky2->rx_put, RX_LE_SIZE); |
291ea614 | 793 | le->ctrl = 0; |
cd28ab6a SH |
794 | return le; |
795 | } | |
796 | ||
a018e330 SH |
797 | /* Return high part of DMA address (could be 32 or 64 bit) */ |
798 | static inline u32 high32(dma_addr_t a) | |
799 | { | |
a036119f | 800 | return sizeof(a) > sizeof(u32) ? (a >> 16) >> 16 : 0; |
a018e330 SH |
801 | } |
802 | ||
14d0263f SH |
803 | /* Build description to hardware for one receive segment */ |
804 | static void sky2_rx_add(struct sky2_port *sky2, u8 op, | |
805 | dma_addr_t map, unsigned len) | |
cd28ab6a SH |
806 | { |
807 | struct sky2_rx_le *le; | |
734d1868 | 808 | u32 hi = high32(map); |
cd28ab6a | 809 | |
793b883e | 810 | if (sky2->rx_addr64 != hi) { |
cd28ab6a | 811 | le = sky2_next_rx(sky2); |
793b883e | 812 | le->addr = cpu_to_le32(hi); |
cd28ab6a | 813 | le->opcode = OP_ADDR64 | HW_OWNER; |
734d1868 | 814 | sky2->rx_addr64 = high32(map + len); |
cd28ab6a | 815 | } |
793b883e | 816 | |
cd28ab6a | 817 | le = sky2_next_rx(sky2); |
734d1868 SH |
818 | le->addr = cpu_to_le32((u32) map); |
819 | le->length = cpu_to_le16(len); | |
14d0263f | 820 | le->opcode = op | HW_OWNER; |
cd28ab6a SH |
821 | } |
822 | ||
14d0263f SH |
823 | /* Build description to hardware for one possibly fragmented skb */ |
824 | static void sky2_rx_submit(struct sky2_port *sky2, | |
825 | const struct rx_ring_info *re) | |
826 | { | |
827 | int i; | |
828 | ||
829 | sky2_rx_add(sky2, OP_PACKET, re->data_addr, sky2->rx_data_size); | |
830 | ||
831 | for (i = 0; i < skb_shinfo(re->skb)->nr_frags; i++) | |
832 | sky2_rx_add(sky2, OP_BUFFER, re->frag_addr[i], PAGE_SIZE); | |
833 | } | |
834 | ||
835 | ||
836 | static void sky2_rx_map_skb(struct pci_dev *pdev, struct rx_ring_info *re, | |
837 | unsigned size) | |
838 | { | |
839 | struct sk_buff *skb = re->skb; | |
840 | int i; | |
841 | ||
842 | re->data_addr = pci_map_single(pdev, skb->data, size, PCI_DMA_FROMDEVICE); | |
843 | pci_unmap_len_set(re, data_size, size); | |
844 | ||
845 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) | |
846 | re->frag_addr[i] = pci_map_page(pdev, | |
847 | skb_shinfo(skb)->frags[i].page, | |
848 | skb_shinfo(skb)->frags[i].page_offset, | |
849 | skb_shinfo(skb)->frags[i].size, | |
850 | PCI_DMA_FROMDEVICE); | |
851 | } | |
852 | ||
853 | static void sky2_rx_unmap_skb(struct pci_dev *pdev, struct rx_ring_info *re) | |
854 | { | |
855 | struct sk_buff *skb = re->skb; | |
856 | int i; | |
857 | ||
858 | pci_unmap_single(pdev, re->data_addr, pci_unmap_len(re, data_size), | |
859 | PCI_DMA_FROMDEVICE); | |
860 | ||
861 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) | |
862 | pci_unmap_page(pdev, re->frag_addr[i], | |
863 | skb_shinfo(skb)->frags[i].size, | |
864 | PCI_DMA_FROMDEVICE); | |
865 | } | |
793b883e | 866 | |
cd28ab6a SH |
867 | /* Tell chip where to start receive checksum. |
868 | * Actually has two checksums, but set both same to avoid possible byte | |
869 | * order problems. | |
870 | */ | |
793b883e | 871 | static void rx_set_checksum(struct sky2_port *sky2) |
cd28ab6a SH |
872 | { |
873 | struct sky2_rx_le *le; | |
874 | ||
cd28ab6a | 875 | le = sky2_next_rx(sky2); |
f65b138c | 876 | le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN); |
cd28ab6a SH |
877 | le->ctrl = 0; |
878 | le->opcode = OP_TCPSTART | HW_OWNER; | |
793b883e | 879 | |
793b883e SH |
880 | sky2_write32(sky2->hw, |
881 | Q_ADDR(rxqaddr[sky2->port], Q_CSR), | |
882 | sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM); | |
cd28ab6a SH |
883 | |
884 | } | |
885 | ||
6b1a3aef SH |
886 | /* |
887 | * The RX Stop command will not work for Yukon-2 if the BMU does not | |
888 | * reach the end of packet and since we can't make sure that we have | |
889 | * incoming data, we must reset the BMU while it is not doing a DMA | |
890 | * transfer. Since it is possible that the RX path is still active, | |
891 | * the RX RAM buffer will be stopped first, so any possible incoming | |
892 | * data will not trigger a DMA. After the RAM buffer is stopped, the | |
893 | * BMU is polled until any DMA in progress is ended and only then it | |
894 | * will be reset. | |
895 | */ | |
896 | static void sky2_rx_stop(struct sky2_port *sky2) | |
897 | { | |
898 | struct sky2_hw *hw = sky2->hw; | |
899 | unsigned rxq = rxqaddr[sky2->port]; | |
900 | int i; | |
901 | ||
902 | /* disable the RAM Buffer receive queue */ | |
903 | sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD); | |
904 | ||
905 | for (i = 0; i < 0xffff; i++) | |
906 | if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL)) | |
907 | == sky2_read8(hw, RB_ADDR(rxq, Q_RL))) | |
908 | goto stopped; | |
909 | ||
910 | printk(KERN_WARNING PFX "%s: receiver stop failed\n", | |
911 | sky2->netdev->name); | |
912 | stopped: | |
913 | sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST); | |
914 | ||
915 | /* reset the Rx prefetch unit */ | |
916 | sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET); | |
917 | } | |
793b883e | 918 | |
d571b694 | 919 | /* Clean out receive buffer area, assumes receiver hardware stopped */ |
cd28ab6a SH |
920 | static void sky2_rx_clean(struct sky2_port *sky2) |
921 | { | |
922 | unsigned i; | |
923 | ||
924 | memset(sky2->rx_le, 0, RX_LE_BYTES); | |
793b883e | 925 | for (i = 0; i < sky2->rx_pending; i++) { |
291ea614 | 926 | struct rx_ring_info *re = sky2->rx_ring + i; |
cd28ab6a SH |
927 | |
928 | if (re->skb) { | |
14d0263f | 929 | sky2_rx_unmap_skb(sky2->hw->pdev, re); |
cd28ab6a SH |
930 | kfree_skb(re->skb); |
931 | re->skb = NULL; | |
932 | } | |
933 | } | |
934 | } | |
935 | ||
ef743d33 SH |
936 | /* Basic MII support */ |
937 | static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
938 | { | |
939 | struct mii_ioctl_data *data = if_mii(ifr); | |
940 | struct sky2_port *sky2 = netdev_priv(dev); | |
941 | struct sky2_hw *hw = sky2->hw; | |
942 | int err = -EOPNOTSUPP; | |
943 | ||
944 | if (!netif_running(dev)) | |
945 | return -ENODEV; /* Phy still in reset */ | |
946 | ||
d89e1343 | 947 | switch (cmd) { |
ef743d33 SH |
948 | case SIOCGMIIPHY: |
949 | data->phy_id = PHY_ADDR_MARV; | |
950 | ||
951 | /* fallthru */ | |
952 | case SIOCGMIIREG: { | |
953 | u16 val = 0; | |
91c86df5 | 954 | |
e07b1aa8 | 955 | spin_lock_bh(&sky2->phy_lock); |
ef743d33 | 956 | err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val); |
e07b1aa8 | 957 | spin_unlock_bh(&sky2->phy_lock); |
91c86df5 | 958 | |
ef743d33 SH |
959 | data->val_out = val; |
960 | break; | |
961 | } | |
962 | ||
963 | case SIOCSMIIREG: | |
964 | if (!capable(CAP_NET_ADMIN)) | |
965 | return -EPERM; | |
966 | ||
e07b1aa8 | 967 | spin_lock_bh(&sky2->phy_lock); |
ef743d33 SH |
968 | err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f, |
969 | data->val_in); | |
e07b1aa8 | 970 | spin_unlock_bh(&sky2->phy_lock); |
ef743d33 SH |
971 | break; |
972 | } | |
973 | return err; | |
974 | } | |
975 | ||
d1f13708 SH |
976 | #ifdef SKY2_VLAN_TAG_USED |
977 | static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) | |
978 | { | |
979 | struct sky2_port *sky2 = netdev_priv(dev); | |
980 | struct sky2_hw *hw = sky2->hw; | |
981 | u16 port = sky2->port; | |
d1f13708 | 982 | |
2bb8c262 | 983 | netif_tx_lock_bh(dev); |
d1f13708 SH |
984 | |
985 | sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_ON); | |
986 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_ON); | |
987 | sky2->vlgrp = grp; | |
988 | ||
2bb8c262 | 989 | netif_tx_unlock_bh(dev); |
d1f13708 SH |
990 | } |
991 | ||
992 | static void sky2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
993 | { | |
994 | struct sky2_port *sky2 = netdev_priv(dev); | |
995 | struct sky2_hw *hw = sky2->hw; | |
996 | u16 port = sky2->port; | |
d1f13708 | 997 | |
2bb8c262 | 998 | netif_tx_lock_bh(dev); |
d1f13708 SH |
999 | |
1000 | sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_OFF); | |
1001 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_OFF); | |
1002 | if (sky2->vlgrp) | |
1003 | sky2->vlgrp->vlan_devices[vid] = NULL; | |
1004 | ||
2bb8c262 | 1005 | netif_tx_unlock_bh(dev); |
d1f13708 SH |
1006 | } |
1007 | #endif | |
1008 | ||
82788c7a | 1009 | /* |
14d0263f SH |
1010 | * Allocate an skb for receiving. If the MTU is large enough |
1011 | * make the skb non-linear with a fragment list of pages. | |
1012 | * | |
82788c7a SH |
1013 | * It appears the hardware has a bug in the FIFO logic that |
1014 | * cause it to hang if the FIFO gets overrun and the receive buffer | |
497d7c86 SH |
1015 | * is not 64 byte aligned. The buffer returned from netdev_alloc_skb is |
1016 | * aligned except if slab debugging is enabled. | |
82788c7a | 1017 | */ |
14d0263f | 1018 | static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2) |
82788c7a SH |
1019 | { |
1020 | struct sk_buff *skb; | |
14d0263f SH |
1021 | unsigned long p; |
1022 | int i; | |
82788c7a | 1023 | |
14d0263f SH |
1024 | skb = netdev_alloc_skb(sky2->netdev, sky2->rx_data_size + RX_SKB_ALIGN); |
1025 | if (!skb) | |
1026 | goto nomem; | |
1027 | ||
1028 | p = (unsigned long) skb->data; | |
1029 | skb_reserve(skb, ALIGN(p, RX_SKB_ALIGN) - p); | |
1030 | ||
1031 | for (i = 0; i < sky2->rx_nfrags; i++) { | |
1032 | struct page *page = alloc_page(GFP_ATOMIC); | |
1033 | ||
1034 | if (!page) | |
1035 | goto free_partial; | |
1036 | skb_fill_page_desc(skb, i, page, 0, PAGE_SIZE); | |
82788c7a SH |
1037 | } |
1038 | ||
1039 | return skb; | |
14d0263f SH |
1040 | free_partial: |
1041 | kfree_skb(skb); | |
1042 | nomem: | |
1043 | return NULL; | |
82788c7a SH |
1044 | } |
1045 | ||
cd28ab6a SH |
1046 | /* |
1047 | * Allocate and setup receiver buffer pool. | |
14d0263f SH |
1048 | * Normal case this ends up creating one list element for skb |
1049 | * in the receive ring. Worst case if using large MTU and each | |
1050 | * allocation falls on a different 64 bit region, that results | |
1051 | * in 6 list elements per ring entry. | |
1052 | * One element is used for checksum enable/disable, and one | |
1053 | * extra to avoid wrap. | |
cd28ab6a | 1054 | */ |
6b1a3aef | 1055 | static int sky2_rx_start(struct sky2_port *sky2) |
cd28ab6a | 1056 | { |
6b1a3aef | 1057 | struct sky2_hw *hw = sky2->hw; |
14d0263f | 1058 | struct rx_ring_info *re; |
6b1a3aef | 1059 | unsigned rxq = rxqaddr[sky2->port]; |
14d0263f | 1060 | unsigned i, size, space, thresh; |
cd28ab6a | 1061 | |
6b1a3aef | 1062 | sky2->rx_put = sky2->rx_next = 0; |
af4ed7e6 | 1063 | sky2_qset(hw, rxq); |
977bdf06 | 1064 | |
8df9a876 SH |
1065 | if (hw->chip_id == CHIP_ID_YUKON_EC_U && |
1066 | (hw->chip_rev == CHIP_REV_YU_EC_U_A1 || hw->chip_rev == CHIP_REV_YU_EC_U_B0)) { | |
977bdf06 SH |
1067 | /* MAC Rx RAM Read is controlled by hardware */ |
1068 | sky2_write32(hw, Q_ADDR(rxq, Q_F), F_M_RX_RAM_DIS); | |
1069 | } | |
1070 | ||
6b1a3aef SH |
1071 | sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1); |
1072 | ||
1073 | rx_set_checksum(sky2); | |
14d0263f SH |
1074 | |
1075 | /* Space needed for frame data + headers rounded up */ | |
1076 | size = ALIGN(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8) | |
1077 | + 8; | |
1078 | ||
1079 | /* Stopping point for hardware truncation */ | |
1080 | thresh = (size - 8) / sizeof(u32); | |
1081 | ||
1082 | /* Account for overhead of skb - to avoid order > 0 allocation */ | |
1083 | space = SKB_DATA_ALIGN(size) + NET_SKB_PAD | |
1084 | + sizeof(struct skb_shared_info); | |
1085 | ||
1086 | sky2->rx_nfrags = space >> PAGE_SHIFT; | |
1087 | BUG_ON(sky2->rx_nfrags > ARRAY_SIZE(re->frag_addr)); | |
1088 | ||
1089 | if (sky2->rx_nfrags != 0) { | |
1090 | /* Compute residue after pages */ | |
1091 | space = sky2->rx_nfrags << PAGE_SHIFT; | |
1092 | ||
1093 | if (space < size) | |
1094 | size -= space; | |
1095 | else | |
1096 | size = 0; | |
1097 | ||
1098 | /* Optimize to handle small packets and headers */ | |
1099 | if (size < copybreak) | |
1100 | size = copybreak; | |
1101 | if (size < ETH_HLEN) | |
1102 | size = ETH_HLEN; | |
1103 | } | |
1104 | sky2->rx_data_size = size; | |
1105 | ||
1106 | /* Fill Rx ring */ | |
793b883e | 1107 | for (i = 0; i < sky2->rx_pending; i++) { |
14d0263f | 1108 | re = sky2->rx_ring + i; |
cd28ab6a | 1109 | |
14d0263f | 1110 | re->skb = sky2_rx_alloc(sky2); |
cd28ab6a SH |
1111 | if (!re->skb) |
1112 | goto nomem; | |
1113 | ||
14d0263f SH |
1114 | sky2_rx_map_skb(hw->pdev, re, sky2->rx_data_size); |
1115 | sky2_rx_submit(sky2, re); | |
cd28ab6a SH |
1116 | } |
1117 | ||
a1433ac4 SH |
1118 | /* |
1119 | * The receiver hangs if it receives frames larger than the | |
1120 | * packet buffer. As a workaround, truncate oversize frames, but | |
1121 | * the register is limited to 9 bits, so if you do frames > 2052 | |
1122 | * you better get the MTU right! | |
1123 | */ | |
a1433ac4 SH |
1124 | if (thresh > 0x1ff) |
1125 | sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_OFF); | |
1126 | else { | |
1127 | sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), thresh); | |
1128 | sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON); | |
1129 | } | |
1130 | ||
6b1a3aef SH |
1131 | /* Tell chip about available buffers */ |
1132 | sky2_write16(hw, Y2_QADDR(rxq, PREF_UNIT_PUT_IDX), sky2->rx_put); | |
cd28ab6a SH |
1133 | return 0; |
1134 | nomem: | |
1135 | sky2_rx_clean(sky2); | |
1136 | return -ENOMEM; | |
1137 | } | |
1138 | ||
1139 | /* Bring up network interface. */ | |
1140 | static int sky2_up(struct net_device *dev) | |
1141 | { | |
1142 | struct sky2_port *sky2 = netdev_priv(dev); | |
1143 | struct sky2_hw *hw = sky2->hw; | |
1144 | unsigned port = sky2->port; | |
67712901 | 1145 | u32 ramsize, imask; |
ee7abb04 | 1146 | int cap, err = -ENOMEM; |
843a46f4 | 1147 | struct net_device *otherdev = hw->dev[sky2->port^1]; |
cd28ab6a | 1148 | |
ee7abb04 SH |
1149 | /* |
1150 | * On dual port PCI-X card, there is an problem where status | |
1151 | * can be received out of order due to split transactions | |
843a46f4 | 1152 | */ |
ee7abb04 SH |
1153 | if (otherdev && netif_running(otherdev) && |
1154 | (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) { | |
1155 | struct sky2_port *osky2 = netdev_priv(otherdev); | |
1156 | u16 cmd; | |
1157 | ||
1158 | cmd = sky2_pci_read16(hw, cap + PCI_X_CMD); | |
1159 | cmd &= ~PCI_X_CMD_MAX_SPLIT; | |
1160 | sky2_pci_write16(hw, cap + PCI_X_CMD, cmd); | |
1161 | ||
1162 | sky2->rx_csum = 0; | |
1163 | osky2->rx_csum = 0; | |
1164 | } | |
843a46f4 | 1165 | |
cd28ab6a SH |
1166 | if (netif_msg_ifup(sky2)) |
1167 | printk(KERN_INFO PFX "%s: enabling interface\n", dev->name); | |
1168 | ||
1169 | /* must be power of 2 */ | |
1170 | sky2->tx_le = pci_alloc_consistent(hw->pdev, | |
793b883e SH |
1171 | TX_RING_SIZE * |
1172 | sizeof(struct sky2_tx_le), | |
cd28ab6a SH |
1173 | &sky2->tx_le_map); |
1174 | if (!sky2->tx_le) | |
1175 | goto err_out; | |
1176 | ||
6cdbbdf3 | 1177 | sky2->tx_ring = kcalloc(TX_RING_SIZE, sizeof(struct tx_ring_info), |
cd28ab6a SH |
1178 | GFP_KERNEL); |
1179 | if (!sky2->tx_ring) | |
1180 | goto err_out; | |
1181 | sky2->tx_prod = sky2->tx_cons = 0; | |
cd28ab6a SH |
1182 | |
1183 | sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES, | |
1184 | &sky2->rx_le_map); | |
1185 | if (!sky2->rx_le) | |
1186 | goto err_out; | |
1187 | memset(sky2->rx_le, 0, RX_LE_BYTES); | |
1188 | ||
291ea614 | 1189 | sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct rx_ring_info), |
cd28ab6a SH |
1190 | GFP_KERNEL); |
1191 | if (!sky2->rx_ring) | |
1192 | goto err_out; | |
1193 | ||
d3bcfbeb SH |
1194 | sky2_phy_power(hw, port, 1); |
1195 | ||
cd28ab6a SH |
1196 | sky2_mac_init(hw, port); |
1197 | ||
67712901 SH |
1198 | /* Register is number of 4K blocks on internal RAM buffer. */ |
1199 | ramsize = sky2_read8(hw, B2_E_0) * 4; | |
1200 | printk(KERN_INFO PFX "%s: ram buffer %dK\n", dev->name, ramsize); | |
1c28f6ba | 1201 | |
67712901 SH |
1202 | if (ramsize > 0) { |
1203 | u32 rxspace; | |
cd28ab6a | 1204 | |
67712901 SH |
1205 | if (ramsize < 16) |
1206 | rxspace = ramsize / 2; | |
1207 | else | |
1208 | rxspace = 8 + (2*(ramsize - 16))/3; | |
cd28ab6a | 1209 | |
67712901 SH |
1210 | sky2_ramset(hw, rxqaddr[port], 0, rxspace); |
1211 | sky2_ramset(hw, txqaddr[port], rxspace, ramsize - rxspace); | |
1212 | ||
1213 | /* Make sure SyncQ is disabled */ | |
1214 | sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL), | |
1215 | RB_RST_SET); | |
1216 | } | |
793b883e | 1217 | |
af4ed7e6 | 1218 | sky2_qset(hw, txqaddr[port]); |
5a5b1ea0 | 1219 | |
977bdf06 | 1220 | /* Set almost empty threshold */ |
c2716fb4 SH |
1221 | if (hw->chip_id == CHIP_ID_YUKON_EC_U |
1222 | && hw->chip_rev == CHIP_REV_YU_EC_U_A0) | |
977bdf06 | 1223 | sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), 0x1a0); |
5a5b1ea0 | 1224 | |
6b1a3aef SH |
1225 | sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map, |
1226 | TX_RING_SIZE - 1); | |
cd28ab6a | 1227 | |
6b1a3aef | 1228 | err = sky2_rx_start(sky2); |
cd28ab6a SH |
1229 | if (err) |
1230 | goto err_out; | |
1231 | ||
cd28ab6a | 1232 | /* Enable interrupts from phy/mac for port */ |
e07b1aa8 | 1233 | imask = sky2_read32(hw, B0_IMSK); |
f4ea431b | 1234 | imask |= portirq_msk[port]; |
e07b1aa8 SH |
1235 | sky2_write32(hw, B0_IMSK, imask); |
1236 | ||
cd28ab6a SH |
1237 | return 0; |
1238 | ||
1239 | err_out: | |
1b537565 | 1240 | if (sky2->rx_le) { |
cd28ab6a SH |
1241 | pci_free_consistent(hw->pdev, RX_LE_BYTES, |
1242 | sky2->rx_le, sky2->rx_le_map); | |
1b537565 SH |
1243 | sky2->rx_le = NULL; |
1244 | } | |
1245 | if (sky2->tx_le) { | |
cd28ab6a SH |
1246 | pci_free_consistent(hw->pdev, |
1247 | TX_RING_SIZE * sizeof(struct sky2_tx_le), | |
1248 | sky2->tx_le, sky2->tx_le_map); | |
1b537565 SH |
1249 | sky2->tx_le = NULL; |
1250 | } | |
1251 | kfree(sky2->tx_ring); | |
1252 | kfree(sky2->rx_ring); | |
cd28ab6a | 1253 | |
1b537565 SH |
1254 | sky2->tx_ring = NULL; |
1255 | sky2->rx_ring = NULL; | |
cd28ab6a SH |
1256 | return err; |
1257 | } | |
1258 | ||
793b883e SH |
1259 | /* Modular subtraction in ring */ |
1260 | static inline int tx_dist(unsigned tail, unsigned head) | |
1261 | { | |
cb5d9547 | 1262 | return (head - tail) & (TX_RING_SIZE - 1); |
793b883e | 1263 | } |
cd28ab6a | 1264 | |
793b883e SH |
1265 | /* Number of list elements available for next tx */ |
1266 | static inline int tx_avail(const struct sky2_port *sky2) | |
cd28ab6a | 1267 | { |
793b883e | 1268 | return sky2->tx_pending - tx_dist(sky2->tx_cons, sky2->tx_prod); |
cd28ab6a SH |
1269 | } |
1270 | ||
793b883e | 1271 | /* Estimate of number of transmit list elements required */ |
28bd181a | 1272 | static unsigned tx_le_req(const struct sk_buff *skb) |
cd28ab6a | 1273 | { |
793b883e SH |
1274 | unsigned count; |
1275 | ||
1276 | count = sizeof(dma_addr_t) / sizeof(u32); | |
1277 | count += skb_shinfo(skb)->nr_frags * count; | |
1278 | ||
89114afd | 1279 | if (skb_is_gso(skb)) |
793b883e SH |
1280 | ++count; |
1281 | ||
84fa7933 | 1282 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
793b883e SH |
1283 | ++count; |
1284 | ||
1285 | return count; | |
cd28ab6a SH |
1286 | } |
1287 | ||
793b883e SH |
1288 | /* |
1289 | * Put one packet in ring for transmit. | |
1290 | * A single packet can generate multiple list elements, and | |
1291 | * the number of ring elements will probably be less than the number | |
1292 | * of list elements used. | |
1293 | */ | |
cd28ab6a SH |
1294 | static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev) |
1295 | { | |
1296 | struct sky2_port *sky2 = netdev_priv(dev); | |
1297 | struct sky2_hw *hw = sky2->hw; | |
d1f13708 | 1298 | struct sky2_tx_le *le = NULL; |
6cdbbdf3 | 1299 | struct tx_ring_info *re; |
cd28ab6a SH |
1300 | unsigned i, len; |
1301 | dma_addr_t mapping; | |
1302 | u32 addr64; | |
1303 | u16 mss; | |
1304 | u8 ctrl; | |
1305 | ||
2bb8c262 SH |
1306 | if (unlikely(tx_avail(sky2) < tx_le_req(skb))) |
1307 | return NETDEV_TX_BUSY; | |
cd28ab6a | 1308 | |
793b883e | 1309 | if (unlikely(netif_msg_tx_queued(sky2))) |
cd28ab6a SH |
1310 | printk(KERN_DEBUG "%s: tx queued, slot %u, len %d\n", |
1311 | dev->name, sky2->tx_prod, skb->len); | |
1312 | ||
cd28ab6a SH |
1313 | len = skb_headlen(skb); |
1314 | mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
a018e330 | 1315 | addr64 = high32(mapping); |
793b883e | 1316 | |
a018e330 SH |
1317 | /* Send high bits if changed or crosses boundary */ |
1318 | if (addr64 != sky2->tx_addr64 || high32(mapping + len) != sky2->tx_addr64) { | |
793b883e | 1319 | le = get_tx_le(sky2); |
f65b138c | 1320 | le->addr = cpu_to_le32(addr64); |
793b883e | 1321 | le->opcode = OP_ADDR64 | HW_OWNER; |
a018e330 | 1322 | sky2->tx_addr64 = high32(mapping + len); |
793b883e | 1323 | } |
cd28ab6a SH |
1324 | |
1325 | /* Check for TCP Segmentation Offload */ | |
7967168c | 1326 | mss = skb_shinfo(skb)->gso_size; |
793b883e | 1327 | if (mss != 0) { |
cd28ab6a SH |
1328 | mss += ((skb->h.th->doff - 5) * 4); /* TCP options */ |
1329 | mss += (skb->nh.iph->ihl * 4) + sizeof(struct tcphdr); | |
1330 | mss += ETH_HLEN; | |
1331 | ||
e07560cd SH |
1332 | if (mss != sky2->tx_last_mss) { |
1333 | le = get_tx_le(sky2); | |
f65b138c | 1334 | le->addr = cpu_to_le32(mss); |
e07560cd | 1335 | le->opcode = OP_LRGLEN | HW_OWNER; |
e07560cd SH |
1336 | sky2->tx_last_mss = mss; |
1337 | } | |
cd28ab6a SH |
1338 | } |
1339 | ||
cd28ab6a | 1340 | ctrl = 0; |
d1f13708 SH |
1341 | #ifdef SKY2_VLAN_TAG_USED |
1342 | /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */ | |
1343 | if (sky2->vlgrp && vlan_tx_tag_present(skb)) { | |
1344 | if (!le) { | |
1345 | le = get_tx_le(sky2); | |
f65b138c | 1346 | le->addr = 0; |
d1f13708 | 1347 | le->opcode = OP_VLAN|HW_OWNER; |
d1f13708 SH |
1348 | } else |
1349 | le->opcode |= OP_VLAN; | |
1350 | le->length = cpu_to_be16(vlan_tx_tag_get(skb)); | |
1351 | ctrl |= INS_VLAN; | |
1352 | } | |
1353 | #endif | |
1354 | ||
1355 | /* Handle TCP checksum offload */ | |
84fa7933 | 1356 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
f65b138c SH |
1357 | unsigned offset = skb->h.raw - skb->data; |
1358 | u32 tcpsum; | |
1359 | ||
1360 | tcpsum = offset << 16; /* sum start */ | |
ff1dcadb | 1361 | tcpsum |= offset + skb->csum_offset; /* sum write */ |
cd28ab6a SH |
1362 | |
1363 | ctrl = CALSUM | WR_SUM | INIT_SUM | LOCK_SUM; | |
1364 | if (skb->nh.iph->protocol == IPPROTO_UDP) | |
1365 | ctrl |= UDPTCP; | |
1366 | ||
f65b138c SH |
1367 | if (tcpsum != sky2->tx_tcpsum) { |
1368 | sky2->tx_tcpsum = tcpsum; | |
1d179332 SH |
1369 | |
1370 | le = get_tx_le(sky2); | |
f65b138c | 1371 | le->addr = cpu_to_le32(tcpsum); |
1d179332 SH |
1372 | le->length = 0; /* initial checksum value */ |
1373 | le->ctrl = 1; /* one packet */ | |
1374 | le->opcode = OP_TCPLISW | HW_OWNER; | |
1375 | } | |
cd28ab6a SH |
1376 | } |
1377 | ||
1378 | le = get_tx_le(sky2); | |
f65b138c | 1379 | le->addr = cpu_to_le32((u32) mapping); |
cd28ab6a SH |
1380 | le->length = cpu_to_le16(len); |
1381 | le->ctrl = ctrl; | |
793b883e | 1382 | le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER); |
cd28ab6a | 1383 | |
291ea614 | 1384 | re = tx_le_re(sky2, le); |
cd28ab6a | 1385 | re->skb = skb; |
6cdbbdf3 | 1386 | pci_unmap_addr_set(re, mapaddr, mapping); |
291ea614 | 1387 | pci_unmap_len_set(re, maplen, len); |
cd28ab6a SH |
1388 | |
1389 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
291ea614 | 1390 | const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
cd28ab6a SH |
1391 | |
1392 | mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset, | |
1393 | frag->size, PCI_DMA_TODEVICE); | |
a036119f | 1394 | addr64 = high32(mapping); |
793b883e SH |
1395 | if (addr64 != sky2->tx_addr64) { |
1396 | le = get_tx_le(sky2); | |
f65b138c | 1397 | le->addr = cpu_to_le32(addr64); |
793b883e SH |
1398 | le->ctrl = 0; |
1399 | le->opcode = OP_ADDR64 | HW_OWNER; | |
1400 | sky2->tx_addr64 = addr64; | |
cd28ab6a SH |
1401 | } |
1402 | ||
1403 | le = get_tx_le(sky2); | |
f65b138c | 1404 | le->addr = cpu_to_le32((u32) mapping); |
cd28ab6a SH |
1405 | le->length = cpu_to_le16(frag->size); |
1406 | le->ctrl = ctrl; | |
793b883e | 1407 | le->opcode = OP_BUFFER | HW_OWNER; |
cd28ab6a | 1408 | |
291ea614 SH |
1409 | re = tx_le_re(sky2, le); |
1410 | re->skb = skb; | |
1411 | pci_unmap_addr_set(re, mapaddr, mapping); | |
1412 | pci_unmap_len_set(re, maplen, frag->size); | |
cd28ab6a | 1413 | } |
6cdbbdf3 | 1414 | |
cd28ab6a SH |
1415 | le->ctrl |= EOP; |
1416 | ||
97bda706 SH |
1417 | if (tx_avail(sky2) <= MAX_SKB_TX_LE) |
1418 | netif_stop_queue(dev); | |
b19666d9 | 1419 | |
290d4de5 | 1420 | sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod); |
cd28ab6a | 1421 | |
cd28ab6a SH |
1422 | dev->trans_start = jiffies; |
1423 | return NETDEV_TX_OK; | |
1424 | } | |
1425 | ||
cd28ab6a | 1426 | /* |
793b883e SH |
1427 | * Free ring elements from starting at tx_cons until "done" |
1428 | * | |
1429 | * NB: the hardware will tell us about partial completion of multi-part | |
291ea614 | 1430 | * buffers so make sure not to free skb to early. |
cd28ab6a | 1431 | */ |
d11c13e7 | 1432 | static void sky2_tx_complete(struct sky2_port *sky2, u16 done) |
cd28ab6a | 1433 | { |
d11c13e7 | 1434 | struct net_device *dev = sky2->netdev; |
af2a58ac | 1435 | struct pci_dev *pdev = sky2->hw->pdev; |
291ea614 | 1436 | unsigned idx; |
cd28ab6a | 1437 | |
0e3ff6aa | 1438 | BUG_ON(done >= TX_RING_SIZE); |
2224795d | 1439 | |
291ea614 SH |
1440 | for (idx = sky2->tx_cons; idx != done; |
1441 | idx = RING_NEXT(idx, TX_RING_SIZE)) { | |
1442 | struct sky2_tx_le *le = sky2->tx_le + idx; | |
1443 | struct tx_ring_info *re = sky2->tx_ring + idx; | |
1444 | ||
1445 | switch(le->opcode & ~HW_OWNER) { | |
1446 | case OP_LARGESEND: | |
1447 | case OP_PACKET: | |
1448 | pci_unmap_single(pdev, | |
1449 | pci_unmap_addr(re, mapaddr), | |
1450 | pci_unmap_len(re, maplen), | |
1451 | PCI_DMA_TODEVICE); | |
af2a58ac | 1452 | break; |
291ea614 SH |
1453 | case OP_BUFFER: |
1454 | pci_unmap_page(pdev, pci_unmap_addr(re, mapaddr), | |
1455 | pci_unmap_len(re, maplen), | |
734d1868 | 1456 | PCI_DMA_TODEVICE); |
291ea614 SH |
1457 | break; |
1458 | } | |
1459 | ||
1460 | if (le->ctrl & EOP) { | |
1461 | if (unlikely(netif_msg_tx_done(sky2))) | |
1462 | printk(KERN_DEBUG "%s: tx done %u\n", | |
1463 | dev->name, idx); | |
794b2bd2 | 1464 | dev_kfree_skb_any(re->skb); |
cd28ab6a SH |
1465 | } |
1466 | ||
291ea614 | 1467 | le->opcode = 0; /* paranoia */ |
793b883e | 1468 | } |
793b883e | 1469 | |
291ea614 | 1470 | sky2->tx_cons = idx; |
22e11703 | 1471 | if (tx_avail(sky2) > MAX_SKB_TX_LE + 4) |
cd28ab6a | 1472 | netif_wake_queue(dev); |
cd28ab6a SH |
1473 | } |
1474 | ||
1475 | /* Cleanup all untransmitted buffers, assume transmitter not running */ | |
2bb8c262 | 1476 | static void sky2_tx_clean(struct net_device *dev) |
cd28ab6a | 1477 | { |
2bb8c262 SH |
1478 | struct sky2_port *sky2 = netdev_priv(dev); |
1479 | ||
1480 | netif_tx_lock_bh(dev); | |
d11c13e7 | 1481 | sky2_tx_complete(sky2, sky2->tx_prod); |
2bb8c262 | 1482 | netif_tx_unlock_bh(dev); |
cd28ab6a SH |
1483 | } |
1484 | ||
1485 | /* Network shutdown */ | |
1486 | static int sky2_down(struct net_device *dev) | |
1487 | { | |
1488 | struct sky2_port *sky2 = netdev_priv(dev); | |
1489 | struct sky2_hw *hw = sky2->hw; | |
1490 | unsigned port = sky2->port; | |
1491 | u16 ctrl; | |
e07b1aa8 | 1492 | u32 imask; |
cd28ab6a | 1493 | |
1b537565 SH |
1494 | /* Never really got started! */ |
1495 | if (!sky2->tx_le) | |
1496 | return 0; | |
1497 | ||
cd28ab6a SH |
1498 | if (netif_msg_ifdown(sky2)) |
1499 | printk(KERN_INFO PFX "%s: disabling interface\n", dev->name); | |
1500 | ||
018d1c66 | 1501 | /* Stop more packets from being queued */ |
cd28ab6a SH |
1502 | netif_stop_queue(dev); |
1503 | ||
ebc646f6 SH |
1504 | /* Disable port IRQ */ |
1505 | imask = sky2_read32(hw, B0_IMSK); | |
1506 | imask &= ~portirq_msk[port]; | |
1507 | sky2_write32(hw, B0_IMSK, imask); | |
1508 | ||
d3bcfbeb | 1509 | sky2_gmac_reset(hw, port); |
793b883e | 1510 | |
cd28ab6a SH |
1511 | /* Stop transmitter */ |
1512 | sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP); | |
1513 | sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR)); | |
1514 | ||
1515 | sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), | |
793b883e | 1516 | RB_RST_SET | RB_DIS_OP_MD); |
cd28ab6a | 1517 | |
c2716fb4 SH |
1518 | /* WA for dev. #4.209 */ |
1519 | if (hw->chip_id == CHIP_ID_YUKON_EC_U | |
8df9a876 | 1520 | && (hw->chip_rev == CHIP_REV_YU_EC_U_A1 || hw->chip_rev == CHIP_REV_YU_EC_U_B0)) |
c2716fb4 SH |
1521 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), |
1522 | sky2->speed != SPEED_1000 ? | |
1523 | TX_STFW_ENA : TX_STFW_DIS); | |
1524 | ||
cd28ab6a | 1525 | ctrl = gma_read16(hw, port, GM_GP_CTRL); |
793b883e | 1526 | ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA); |
cd28ab6a SH |
1527 | gma_write16(hw, port, GM_GP_CTRL, ctrl); |
1528 | ||
1529 | sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); | |
1530 | ||
1531 | /* Workaround shared GMAC reset */ | |
793b883e SH |
1532 | if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 |
1533 | && port == 0 && hw->dev[1] && netif_running(hw->dev[1]))) | |
cd28ab6a SH |
1534 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); |
1535 | ||
1536 | /* Disable Force Sync bit and Enable Alloc bit */ | |
1537 | sky2_write8(hw, SK_REG(port, TXA_CTRL), | |
1538 | TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC); | |
1539 | ||
1540 | /* Stop Interval Timer and Limit Counter of Tx Arbiter */ | |
1541 | sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L); | |
1542 | sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L); | |
1543 | ||
1544 | /* Reset the PCI FIFO of the async Tx queue */ | |
793b883e SH |
1545 | sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), |
1546 | BMU_RST_SET | BMU_FIFO_RST); | |
cd28ab6a SH |
1547 | |
1548 | /* Reset the Tx prefetch units */ | |
1549 | sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL), | |
1550 | PREF_UNIT_RST_SET); | |
1551 | ||
1552 | sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET); | |
1553 | ||
6b1a3aef | 1554 | sky2_rx_stop(sky2); |
cd28ab6a SH |
1555 | |
1556 | sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); | |
1557 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET); | |
1558 | ||
d3bcfbeb SH |
1559 | sky2_phy_power(hw, port, 0); |
1560 | ||
d571b694 | 1561 | /* turn off LED's */ |
cd28ab6a SH |
1562 | sky2_write16(hw, B0_Y2LED, LED_STAT_OFF); |
1563 | ||
018d1c66 SH |
1564 | synchronize_irq(hw->pdev->irq); |
1565 | ||
2bb8c262 | 1566 | sky2_tx_clean(dev); |
cd28ab6a SH |
1567 | sky2_rx_clean(sky2); |
1568 | ||
1569 | pci_free_consistent(hw->pdev, RX_LE_BYTES, | |
1570 | sky2->rx_le, sky2->rx_le_map); | |
1571 | kfree(sky2->rx_ring); | |
1572 | ||
1573 | pci_free_consistent(hw->pdev, | |
1574 | TX_RING_SIZE * sizeof(struct sky2_tx_le), | |
1575 | sky2->tx_le, sky2->tx_le_map); | |
1576 | kfree(sky2->tx_ring); | |
1577 | ||
1b537565 SH |
1578 | sky2->tx_le = NULL; |
1579 | sky2->rx_le = NULL; | |
1580 | ||
1581 | sky2->rx_ring = NULL; | |
1582 | sky2->tx_ring = NULL; | |
1583 | ||
cd28ab6a SH |
1584 | return 0; |
1585 | } | |
1586 | ||
1587 | static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux) | |
1588 | { | |
b89165f2 | 1589 | if (!sky2_is_copper(hw)) |
793b883e SH |
1590 | return SPEED_1000; |
1591 | ||
cd28ab6a SH |
1592 | if (hw->chip_id == CHIP_ID_YUKON_FE) |
1593 | return (aux & PHY_M_PS_SPEED_100) ? SPEED_100 : SPEED_10; | |
1594 | ||
1595 | switch (aux & PHY_M_PS_SPEED_MSK) { | |
1596 | case PHY_M_PS_SPEED_1000: | |
1597 | return SPEED_1000; | |
1598 | case PHY_M_PS_SPEED_100: | |
1599 | return SPEED_100; | |
1600 | default: | |
1601 | return SPEED_10; | |
1602 | } | |
1603 | } | |
1604 | ||
1605 | static void sky2_link_up(struct sky2_port *sky2) | |
1606 | { | |
1607 | struct sky2_hw *hw = sky2->hw; | |
1608 | unsigned port = sky2->port; | |
1609 | u16 reg; | |
16ad91e1 SH |
1610 | static const char *fc_name[] = { |
1611 | [FC_NONE] = "none", | |
1612 | [FC_TX] = "tx", | |
1613 | [FC_RX] = "rx", | |
1614 | [FC_BOTH] = "both", | |
1615 | }; | |
cd28ab6a | 1616 | |
cd28ab6a | 1617 | /* enable Rx/Tx */ |
2eaba1a2 | 1618 | reg = gma_read16(hw, port, GM_GP_CTRL); |
cd28ab6a SH |
1619 | reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; |
1620 | gma_write16(hw, port, GM_GP_CTRL, reg); | |
cd28ab6a SH |
1621 | |
1622 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK); | |
1623 | ||
1624 | netif_carrier_on(sky2->netdev); | |
1625 | netif_wake_queue(sky2->netdev); | |
1626 | ||
1627 | /* Turn on link LED */ | |
793b883e | 1628 | sky2_write8(hw, SK_REG(port, LNK_LED_REG), |
cd28ab6a SH |
1629 | LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF); |
1630 | ||
ed6d32c7 | 1631 | if (hw->chip_id == CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U) { |
793b883e | 1632 | u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); |
ed6d32c7 SH |
1633 | u16 led = PHY_M_LEDC_LOS_CTRL(1); /* link active */ |
1634 | ||
1635 | switch(sky2->speed) { | |
1636 | case SPEED_10: | |
1637 | led |= PHY_M_LEDC_INIT_CTRL(7); | |
1638 | break; | |
1639 | ||
1640 | case SPEED_100: | |
1641 | led |= PHY_M_LEDC_STA1_CTRL(7); | |
1642 | break; | |
1643 | ||
1644 | case SPEED_1000: | |
1645 | led |= PHY_M_LEDC_STA0_CTRL(7); | |
1646 | break; | |
1647 | } | |
793b883e SH |
1648 | |
1649 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
ed6d32c7 | 1650 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, led); |
793b883e SH |
1651 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); |
1652 | } | |
1653 | ||
cd28ab6a SH |
1654 | if (netif_msg_link(sky2)) |
1655 | printk(KERN_INFO PFX | |
d571b694 | 1656 | "%s: Link is up at %d Mbps, %s duplex, flow control %s\n", |
cd28ab6a SH |
1657 | sky2->netdev->name, sky2->speed, |
1658 | sky2->duplex == DUPLEX_FULL ? "full" : "half", | |
16ad91e1 | 1659 | fc_name[sky2->flow_status]); |
cd28ab6a SH |
1660 | } |
1661 | ||
1662 | static void sky2_link_down(struct sky2_port *sky2) | |
1663 | { | |
1664 | struct sky2_hw *hw = sky2->hw; | |
1665 | unsigned port = sky2->port; | |
1666 | u16 reg; | |
1667 | ||
1668 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0); | |
1669 | ||
1670 | reg = gma_read16(hw, port, GM_GP_CTRL); | |
1671 | reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA); | |
1672 | gma_write16(hw, port, GM_GP_CTRL, reg); | |
cd28ab6a | 1673 | |
16ad91e1 | 1674 | if (sky2->flow_status == FC_RX) { |
cd28ab6a SH |
1675 | /* restore Asymmetric Pause bit */ |
1676 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, | |
793b883e SH |
1677 | gm_phy_read(hw, port, PHY_MARV_AUNE_ADV) |
1678 | | PHY_M_AN_ASP); | |
cd28ab6a SH |
1679 | } |
1680 | ||
cd28ab6a SH |
1681 | netif_carrier_off(sky2->netdev); |
1682 | netif_stop_queue(sky2->netdev); | |
1683 | ||
1684 | /* Turn on link LED */ | |
1685 | sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); | |
1686 | ||
1687 | if (netif_msg_link(sky2)) | |
1688 | printk(KERN_INFO PFX "%s: Link is down.\n", sky2->netdev->name); | |
2eaba1a2 | 1689 | |
cd28ab6a SH |
1690 | sky2_phy_init(hw, port); |
1691 | } | |
1692 | ||
16ad91e1 SH |
1693 | static enum flow_control sky2_flow(int rx, int tx) |
1694 | { | |
1695 | if (rx) | |
1696 | return tx ? FC_BOTH : FC_RX; | |
1697 | else | |
1698 | return tx ? FC_TX : FC_NONE; | |
1699 | } | |
1700 | ||
793b883e SH |
1701 | static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux) |
1702 | { | |
1703 | struct sky2_hw *hw = sky2->hw; | |
1704 | unsigned port = sky2->port; | |
1705 | u16 lpa; | |
1706 | ||
1707 | lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP); | |
1708 | ||
1709 | if (lpa & PHY_M_AN_RF) { | |
1710 | printk(KERN_ERR PFX "%s: remote fault", sky2->netdev->name); | |
1711 | return -1; | |
1712 | } | |
1713 | ||
793b883e SH |
1714 | if (!(aux & PHY_M_PS_SPDUP_RES)) { |
1715 | printk(KERN_ERR PFX "%s: speed/duplex mismatch", | |
1716 | sky2->netdev->name); | |
1717 | return -1; | |
1718 | } | |
1719 | ||
793b883e | 1720 | sky2->speed = sky2_phy_speed(hw, aux); |
7c74ac1c | 1721 | sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; |
793b883e SH |
1722 | |
1723 | /* Pause bits are offset (9..8) */ | |
ed6d32c7 | 1724 | if (hw->chip_id == CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U) |
793b883e SH |
1725 | aux >>= 6; |
1726 | ||
16ad91e1 SH |
1727 | sky2->flow_status = sky2_flow(aux & PHY_M_PS_RX_P_EN, |
1728 | aux & PHY_M_PS_TX_P_EN); | |
793b883e | 1729 | |
16ad91e1 | 1730 | if (sky2->duplex == DUPLEX_HALF && sky2->speed < SPEED_1000 |
2eaba1a2 | 1731 | && hw->chip_id != CHIP_ID_YUKON_EC_U) |
16ad91e1 | 1732 | sky2->flow_status = FC_NONE; |
2eaba1a2 | 1733 | |
16ad91e1 | 1734 | if (aux & PHY_M_PS_RX_P_EN) |
793b883e SH |
1735 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); |
1736 | else | |
1737 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); | |
1738 | ||
1739 | return 0; | |
1740 | } | |
cd28ab6a | 1741 | |
e07b1aa8 SH |
1742 | /* Interrupt from PHY */ |
1743 | static void sky2_phy_intr(struct sky2_hw *hw, unsigned port) | |
cd28ab6a | 1744 | { |
e07b1aa8 SH |
1745 | struct net_device *dev = hw->dev[port]; |
1746 | struct sky2_port *sky2 = netdev_priv(dev); | |
cd28ab6a SH |
1747 | u16 istatus, phystat; |
1748 | ||
ebc646f6 SH |
1749 | if (!netif_running(dev)) |
1750 | return; | |
1751 | ||
e07b1aa8 SH |
1752 | spin_lock(&sky2->phy_lock); |
1753 | istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT); | |
1754 | phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT); | |
1755 | ||
cd28ab6a SH |
1756 | if (netif_msg_intr(sky2)) |
1757 | printk(KERN_INFO PFX "%s: phy interrupt status 0x%x 0x%x\n", | |
1758 | sky2->netdev->name, istatus, phystat); | |
1759 | ||
2eaba1a2 | 1760 | if (sky2->autoneg == AUTONEG_ENABLE && (istatus & PHY_M_IS_AN_COMPL)) { |
793b883e SH |
1761 | if (sky2_autoneg_done(sky2, phystat) == 0) |
1762 | sky2_link_up(sky2); | |
1763 | goto out; | |
1764 | } | |
cd28ab6a | 1765 | |
793b883e SH |
1766 | if (istatus & PHY_M_IS_LSP_CHANGE) |
1767 | sky2->speed = sky2_phy_speed(hw, phystat); | |
cd28ab6a | 1768 | |
793b883e SH |
1769 | if (istatus & PHY_M_IS_DUP_CHANGE) |
1770 | sky2->duplex = | |
1771 | (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; | |
cd28ab6a | 1772 | |
793b883e SH |
1773 | if (istatus & PHY_M_IS_LST_CHANGE) { |
1774 | if (phystat & PHY_M_PS_LINK_UP) | |
cd28ab6a | 1775 | sky2_link_up(sky2); |
793b883e SH |
1776 | else |
1777 | sky2_link_down(sky2); | |
cd28ab6a | 1778 | } |
793b883e | 1779 | out: |
e07b1aa8 | 1780 | spin_unlock(&sky2->phy_lock); |
cd28ab6a SH |
1781 | } |
1782 | ||
302d1252 SH |
1783 | |
1784 | /* Transmit timeout is only called if we are running, carries is up | |
1785 | * and tx queue is full (stopped). | |
1786 | */ | |
cd28ab6a SH |
1787 | static void sky2_tx_timeout(struct net_device *dev) |
1788 | { | |
1789 | struct sky2_port *sky2 = netdev_priv(dev); | |
8cc048e3 SH |
1790 | struct sky2_hw *hw = sky2->hw; |
1791 | unsigned txq = txqaddr[sky2->port]; | |
8f24664d | 1792 | u16 report, done; |
cd28ab6a SH |
1793 | |
1794 | if (netif_msg_timer(sky2)) | |
1795 | printk(KERN_ERR PFX "%s: tx timeout\n", dev->name); | |
1796 | ||
8f24664d SH |
1797 | report = sky2_read16(hw, sky2->port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX); |
1798 | done = sky2_read16(hw, Q_ADDR(txq, Q_DONE)); | |
cd28ab6a | 1799 | |
8f24664d SH |
1800 | printk(KERN_DEBUG PFX "%s: transmit ring %u .. %u report=%u done=%u\n", |
1801 | dev->name, | |
1802 | sky2->tx_cons, sky2->tx_prod, report, done); | |
1803 | ||
1804 | if (report != done) { | |
1805 | printk(KERN_INFO PFX "status burst pending (irq moderation?)\n"); | |
1806 | ||
1807 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP); | |
1808 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); | |
1809 | } else if (report != sky2->tx_cons) { | |
1810 | printk(KERN_INFO PFX "status report lost?\n"); | |
1811 | ||
2bb8c262 | 1812 | netif_tx_lock_bh(dev); |
8f24664d | 1813 | sky2_tx_complete(sky2, report); |
2bb8c262 | 1814 | netif_tx_unlock_bh(dev); |
8f24664d SH |
1815 | } else { |
1816 | printk(KERN_INFO PFX "hardware hung? flushing\n"); | |
8cc048e3 | 1817 | |
8f24664d SH |
1818 | sky2_write32(hw, Q_ADDR(txq, Q_CSR), BMU_STOP); |
1819 | sky2_write32(hw, Y2_QADDR(txq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET); | |
1820 | ||
2bb8c262 | 1821 | sky2_tx_clean(dev); |
8f24664d SH |
1822 | |
1823 | sky2_qset(hw, txq); | |
1824 | sky2_prefetch_init(hw, txq, sky2->tx_le_map, TX_RING_SIZE - 1); | |
1825 | } | |
cd28ab6a SH |
1826 | } |
1827 | ||
1828 | static int sky2_change_mtu(struct net_device *dev, int new_mtu) | |
1829 | { | |
6b1a3aef SH |
1830 | struct sky2_port *sky2 = netdev_priv(dev); |
1831 | struct sky2_hw *hw = sky2->hw; | |
1832 | int err; | |
1833 | u16 ctl, mode; | |
e07b1aa8 | 1834 | u32 imask; |
cd28ab6a SH |
1835 | |
1836 | if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) | |
1837 | return -EINVAL; | |
1838 | ||
5a5b1ea0 SH |
1839 | if (hw->chip_id == CHIP_ID_YUKON_EC_U && new_mtu > ETH_DATA_LEN) |
1840 | return -EINVAL; | |
1841 | ||
6b1a3aef SH |
1842 | if (!netif_running(dev)) { |
1843 | dev->mtu = new_mtu; | |
1844 | return 0; | |
1845 | } | |
1846 | ||
e07b1aa8 | 1847 | imask = sky2_read32(hw, B0_IMSK); |
6b1a3aef SH |
1848 | sky2_write32(hw, B0_IMSK, 0); |
1849 | ||
018d1c66 SH |
1850 | dev->trans_start = jiffies; /* prevent tx timeout */ |
1851 | netif_stop_queue(dev); | |
1852 | netif_poll_disable(hw->dev[0]); | |
1853 | ||
e07b1aa8 SH |
1854 | synchronize_irq(hw->pdev->irq); |
1855 | ||
6b1a3aef SH |
1856 | ctl = gma_read16(hw, sky2->port, GM_GP_CTRL); |
1857 | gma_write16(hw, sky2->port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA); | |
1858 | sky2_rx_stop(sky2); | |
1859 | sky2_rx_clean(sky2); | |
cd28ab6a SH |
1860 | |
1861 | dev->mtu = new_mtu; | |
14d0263f | 1862 | |
6b1a3aef SH |
1863 | mode = DATA_BLIND_VAL(DATA_BLIND_DEF) | |
1864 | GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); | |
1865 | ||
1866 | if (dev->mtu > ETH_DATA_LEN) | |
1867 | mode |= GM_SMOD_JUMBO_ENA; | |
1868 | ||
1869 | gma_write16(hw, sky2->port, GM_SERIAL_MODE, mode); | |
cd28ab6a | 1870 | |
6b1a3aef | 1871 | sky2_write8(hw, RB_ADDR(rxqaddr[sky2->port], RB_CTRL), RB_ENA_OP_MD); |
cd28ab6a | 1872 | |
6b1a3aef | 1873 | err = sky2_rx_start(sky2); |
e07b1aa8 | 1874 | sky2_write32(hw, B0_IMSK, imask); |
018d1c66 | 1875 | |
1b537565 SH |
1876 | if (err) |
1877 | dev_close(dev); | |
1878 | else { | |
1879 | gma_write16(hw, sky2->port, GM_GP_CTRL, ctl); | |
1880 | ||
1881 | netif_poll_enable(hw->dev[0]); | |
1882 | netif_wake_queue(dev); | |
1883 | } | |
1884 | ||
cd28ab6a SH |
1885 | return err; |
1886 | } | |
1887 | ||
14d0263f SH |
1888 | /* For small just reuse existing skb for next receive */ |
1889 | static struct sk_buff *receive_copy(struct sky2_port *sky2, | |
1890 | const struct rx_ring_info *re, | |
1891 | unsigned length) | |
1892 | { | |
1893 | struct sk_buff *skb; | |
1894 | ||
1895 | skb = netdev_alloc_skb(sky2->netdev, length + 2); | |
1896 | if (likely(skb)) { | |
1897 | skb_reserve(skb, 2); | |
1898 | pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->data_addr, | |
1899 | length, PCI_DMA_FROMDEVICE); | |
1900 | memcpy(skb->data, re->skb->data, length); | |
1901 | skb->ip_summed = re->skb->ip_summed; | |
1902 | skb->csum = re->skb->csum; | |
1903 | pci_dma_sync_single_for_device(sky2->hw->pdev, re->data_addr, | |
1904 | length, PCI_DMA_FROMDEVICE); | |
1905 | re->skb->ip_summed = CHECKSUM_NONE; | |
489b10c1 | 1906 | skb_put(skb, length); |
14d0263f SH |
1907 | } |
1908 | return skb; | |
1909 | } | |
1910 | ||
1911 | /* Adjust length of skb with fragments to match received data */ | |
1912 | static void skb_put_frags(struct sk_buff *skb, unsigned int hdr_space, | |
1913 | unsigned int length) | |
1914 | { | |
1915 | int i, num_frags; | |
1916 | unsigned int size; | |
1917 | ||
1918 | /* put header into skb */ | |
1919 | size = min(length, hdr_space); | |
1920 | skb->tail += size; | |
1921 | skb->len += size; | |
1922 | length -= size; | |
1923 | ||
1924 | num_frags = skb_shinfo(skb)->nr_frags; | |
1925 | for (i = 0; i < num_frags; i++) { | |
1926 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
1927 | ||
1928 | if (length == 0) { | |
1929 | /* don't need this page */ | |
1930 | __free_page(frag->page); | |
1931 | --skb_shinfo(skb)->nr_frags; | |
1932 | } else { | |
1933 | size = min(length, (unsigned) PAGE_SIZE); | |
1934 | ||
1935 | frag->size = size; | |
1936 | skb->data_len += size; | |
1937 | skb->truesize += size; | |
1938 | skb->len += size; | |
1939 | length -= size; | |
1940 | } | |
1941 | } | |
1942 | } | |
1943 | ||
1944 | /* Normal packet - take skb from ring element and put in a new one */ | |
1945 | static struct sk_buff *receive_new(struct sky2_port *sky2, | |
1946 | struct rx_ring_info *re, | |
1947 | unsigned int length) | |
1948 | { | |
1949 | struct sk_buff *skb, *nskb; | |
1950 | unsigned hdr_space = sky2->rx_data_size; | |
1951 | ||
1952 | pr_debug(PFX "receive new length=%d\n", length); | |
1953 | ||
1954 | /* Don't be tricky about reusing pages (yet) */ | |
1955 | nskb = sky2_rx_alloc(sky2); | |
1956 | if (unlikely(!nskb)) | |
1957 | return NULL; | |
1958 | ||
1959 | skb = re->skb; | |
1960 | sky2_rx_unmap_skb(sky2->hw->pdev, re); | |
1961 | ||
1962 | prefetch(skb->data); | |
1963 | re->skb = nskb; | |
1964 | sky2_rx_map_skb(sky2->hw->pdev, re, hdr_space); | |
1965 | ||
1966 | if (skb_shinfo(skb)->nr_frags) | |
1967 | skb_put_frags(skb, hdr_space, length); | |
1968 | else | |
489b10c1 | 1969 | skb_put(skb, length); |
14d0263f SH |
1970 | return skb; |
1971 | } | |
1972 | ||
cd28ab6a SH |
1973 | /* |
1974 | * Receive one packet. | |
d571b694 | 1975 | * For larger packets, get new buffer. |
cd28ab6a | 1976 | */ |
497d7c86 | 1977 | static struct sk_buff *sky2_receive(struct net_device *dev, |
cd28ab6a SH |
1978 | u16 length, u32 status) |
1979 | { | |
497d7c86 | 1980 | struct sky2_port *sky2 = netdev_priv(dev); |
291ea614 | 1981 | struct rx_ring_info *re = sky2->rx_ring + sky2->rx_next; |
79e57d32 | 1982 | struct sk_buff *skb = NULL; |
cd28ab6a SH |
1983 | |
1984 | if (unlikely(netif_msg_rx_status(sky2))) | |
1985 | printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n", | |
497d7c86 | 1986 | dev->name, sky2->rx_next, status, length); |
cd28ab6a | 1987 | |
793b883e | 1988 | sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending; |
d70cd51a | 1989 | prefetch(sky2->rx_ring + sky2->rx_next); |
cd28ab6a | 1990 | |
42eeea01 | 1991 | if (status & GMR_FS_ANY_ERR) |
cd28ab6a SH |
1992 | goto error; |
1993 | ||
42eeea01 SH |
1994 | if (!(status & GMR_FS_RX_OK)) |
1995 | goto resubmit; | |
1996 | ||
497d7c86 | 1997 | if (length > dev->mtu + ETH_HLEN) |
6e15b712 SH |
1998 | goto oversize; |
1999 | ||
14d0263f SH |
2000 | if (length < copybreak) |
2001 | skb = receive_copy(sky2, re, length); | |
2002 | else | |
2003 | skb = receive_new(sky2, re, length); | |
793b883e | 2004 | resubmit: |
14d0263f | 2005 | sky2_rx_submit(sky2, re); |
79e57d32 | 2006 | |
cd28ab6a SH |
2007 | return skb; |
2008 | ||
6e15b712 SH |
2009 | oversize: |
2010 | ++sky2->net_stats.rx_over_errors; | |
2011 | goto resubmit; | |
2012 | ||
cd28ab6a | 2013 | error: |
6e15b712 | 2014 | ++sky2->net_stats.rx_errors; |
b6d77734 SH |
2015 | if (status & GMR_FS_RX_FF_OV) { |
2016 | sky2->net_stats.rx_fifo_errors++; | |
2017 | goto resubmit; | |
2018 | } | |
6e15b712 | 2019 | |
3be92a70 | 2020 | if (netif_msg_rx_err(sky2) && net_ratelimit()) |
cd28ab6a | 2021 | printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n", |
497d7c86 | 2022 | dev->name, status, length); |
793b883e SH |
2023 | |
2024 | if (status & (GMR_FS_LONG_ERR | GMR_FS_UN_SIZE)) | |
cd28ab6a SH |
2025 | sky2->net_stats.rx_length_errors++; |
2026 | if (status & GMR_FS_FRAGMENT) | |
2027 | sky2->net_stats.rx_frame_errors++; | |
2028 | if (status & GMR_FS_CRC_ERR) | |
2029 | sky2->net_stats.rx_crc_errors++; | |
79e57d32 | 2030 | |
793b883e | 2031 | goto resubmit; |
cd28ab6a SH |
2032 | } |
2033 | ||
e07b1aa8 SH |
2034 | /* Transmit complete */ |
2035 | static inline void sky2_tx_done(struct net_device *dev, u16 last) | |
13b97b74 | 2036 | { |
e07b1aa8 | 2037 | struct sky2_port *sky2 = netdev_priv(dev); |
302d1252 | 2038 | |
e07b1aa8 | 2039 | if (netif_running(dev)) { |
2bb8c262 | 2040 | netif_tx_lock(dev); |
e07b1aa8 | 2041 | sky2_tx_complete(sky2, last); |
2bb8c262 | 2042 | netif_tx_unlock(dev); |
2224795d | 2043 | } |
cd28ab6a SH |
2044 | } |
2045 | ||
e07b1aa8 SH |
2046 | /* Process status response ring */ |
2047 | static int sky2_status_intr(struct sky2_hw *hw, int to_do) | |
cd28ab6a | 2048 | { |
22e11703 | 2049 | struct sky2_port *sky2; |
e07b1aa8 | 2050 | int work_done = 0; |
22e11703 | 2051 | unsigned buf_write[2] = { 0, 0 }; |
e71ebd73 | 2052 | u16 hwidx = sky2_read16(hw, STAT_PUT_IDX); |
a8fd6266 | 2053 | |
af2a58ac | 2054 | rmb(); |
bea86103 | 2055 | |
e71ebd73 | 2056 | while (hw->st_idx != hwidx) { |
13210ce5 SH |
2057 | struct sky2_status_le *le = hw->st_le + hw->st_idx; |
2058 | struct net_device *dev; | |
cd28ab6a | 2059 | struct sk_buff *skb; |
cd28ab6a SH |
2060 | u32 status; |
2061 | u16 length; | |
2062 | ||
cb5d9547 | 2063 | hw->st_idx = RING_NEXT(hw->st_idx, STATUS_RING_SIZE); |
bea86103 | 2064 | |
e71ebd73 SH |
2065 | BUG_ON(le->link >= 2); |
2066 | dev = hw->dev[le->link]; | |
13210ce5 SH |
2067 | |
2068 | sky2 = netdev_priv(dev); | |
f65b138c SH |
2069 | length = le16_to_cpu(le->length); |
2070 | status = le32_to_cpu(le->status); | |
cd28ab6a | 2071 | |
e71ebd73 | 2072 | switch (le->opcode & ~HW_OWNER) { |
cd28ab6a | 2073 | case OP_RXSTAT: |
497d7c86 | 2074 | skb = sky2_receive(dev, length, status); |
d1f13708 | 2075 | if (!skb) |
5df79111 | 2076 | goto force_update; |
13210ce5 | 2077 | |
13210ce5 SH |
2078 | skb->protocol = eth_type_trans(skb, dev); |
2079 | dev->last_rx = jiffies; | |
2080 | ||
d1f13708 SH |
2081 | #ifdef SKY2_VLAN_TAG_USED |
2082 | if (sky2->vlgrp && (status & GMR_FS_VLAN)) { | |
2083 | vlan_hwaccel_receive_skb(skb, | |
2084 | sky2->vlgrp, | |
2085 | be16_to_cpu(sky2->rx_tag)); | |
2086 | } else | |
2087 | #endif | |
cd28ab6a | 2088 | netif_receive_skb(skb); |
13210ce5 | 2089 | |
22e11703 SH |
2090 | /* Update receiver after 16 frames */ |
2091 | if (++buf_write[le->link] == RX_BUF_WRITE) { | |
5df79111 SH |
2092 | force_update: |
2093 | sky2_put_idx(hw, rxqaddr[le->link], sky2->rx_put); | |
22e11703 SH |
2094 | buf_write[le->link] = 0; |
2095 | } | |
2096 | ||
2097 | /* Stop after net poll weight */ | |
13210ce5 SH |
2098 | if (++work_done >= to_do) |
2099 | goto exit_loop; | |
cd28ab6a SH |
2100 | break; |
2101 | ||
d1f13708 SH |
2102 | #ifdef SKY2_VLAN_TAG_USED |
2103 | case OP_RXVLAN: | |
2104 | sky2->rx_tag = length; | |
2105 | break; | |
2106 | ||
2107 | case OP_RXCHKSVLAN: | |
2108 | sky2->rx_tag = length; | |
2109 | /* fall through */ | |
2110 | #endif | |
cd28ab6a | 2111 | case OP_RXCHKS: |
d11c13e7 | 2112 | skb = sky2->rx_ring[sky2->rx_next].skb; |
84fa7933 | 2113 | skb->ip_summed = CHECKSUM_COMPLETE; |
f65b138c | 2114 | skb->csum = status & 0xffff; |
cd28ab6a SH |
2115 | break; |
2116 | ||
2117 | case OP_TXINDEXLE: | |
13b97b74 | 2118 | /* TX index reports status for both ports */ |
f55925d7 SH |
2119 | BUILD_BUG_ON(TX_RING_SIZE > 0x1000); |
2120 | sky2_tx_done(hw->dev[0], status & 0xfff); | |
e07b1aa8 SH |
2121 | if (hw->dev[1]) |
2122 | sky2_tx_done(hw->dev[1], | |
2123 | ((status >> 24) & 0xff) | |
2124 | | (u16)(length & 0xf) << 8); | |
cd28ab6a SH |
2125 | break; |
2126 | ||
cd28ab6a SH |
2127 | default: |
2128 | if (net_ratelimit()) | |
793b883e | 2129 | printk(KERN_WARNING PFX |
e71ebd73 SH |
2130 | "unknown status opcode 0x%x\n", le->opcode); |
2131 | goto exit_loop; | |
cd28ab6a | 2132 | } |
13210ce5 | 2133 | } |
cd28ab6a | 2134 | |
fe2a24df SH |
2135 | /* Fully processed status ring so clear irq */ |
2136 | sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ); | |
2137 | ||
13210ce5 | 2138 | exit_loop: |
22e11703 SH |
2139 | if (buf_write[0]) { |
2140 | sky2 = netdev_priv(hw->dev[0]); | |
2141 | sky2_put_idx(hw, Q_R1, sky2->rx_put); | |
2142 | } | |
2143 | ||
2144 | if (buf_write[1]) { | |
2145 | sky2 = netdev_priv(hw->dev[1]); | |
2146 | sky2_put_idx(hw, Q_R2, sky2->rx_put); | |
2147 | } | |
2148 | ||
e07b1aa8 | 2149 | return work_done; |
cd28ab6a SH |
2150 | } |
2151 | ||
2152 | static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status) | |
2153 | { | |
2154 | struct net_device *dev = hw->dev[port]; | |
2155 | ||
3be92a70 SH |
2156 | if (net_ratelimit()) |
2157 | printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n", | |
2158 | dev->name, status); | |
cd28ab6a SH |
2159 | |
2160 | if (status & Y2_IS_PAR_RD1) { | |
3be92a70 SH |
2161 | if (net_ratelimit()) |
2162 | printk(KERN_ERR PFX "%s: ram data read parity error\n", | |
2163 | dev->name); | |
cd28ab6a SH |
2164 | /* Clear IRQ */ |
2165 | sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR); | |
2166 | } | |
2167 | ||
2168 | if (status & Y2_IS_PAR_WR1) { | |
3be92a70 SH |
2169 | if (net_ratelimit()) |
2170 | printk(KERN_ERR PFX "%s: ram data write parity error\n", | |
2171 | dev->name); | |
cd28ab6a SH |
2172 | |
2173 | sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR); | |
2174 | } | |
2175 | ||
2176 | if (status & Y2_IS_PAR_MAC1) { | |
3be92a70 SH |
2177 | if (net_ratelimit()) |
2178 | printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name); | |
cd28ab6a SH |
2179 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE); |
2180 | } | |
2181 | ||
2182 | if (status & Y2_IS_PAR_RX1) { | |
3be92a70 SH |
2183 | if (net_ratelimit()) |
2184 | printk(KERN_ERR PFX "%s: RX parity error\n", dev->name); | |
cd28ab6a SH |
2185 | sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR); |
2186 | } | |
2187 | ||
2188 | if (status & Y2_IS_TCP_TXA1) { | |
3be92a70 SH |
2189 | if (net_ratelimit()) |
2190 | printk(KERN_ERR PFX "%s: TCP segmentation error\n", | |
2191 | dev->name); | |
cd28ab6a SH |
2192 | sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP); |
2193 | } | |
2194 | } | |
2195 | ||
2196 | static void sky2_hw_intr(struct sky2_hw *hw) | |
2197 | { | |
2198 | u32 status = sky2_read32(hw, B0_HWE_ISRC); | |
2199 | ||
793b883e | 2200 | if (status & Y2_IS_TIST_OV) |
cd28ab6a | 2201 | sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); |
cd28ab6a SH |
2202 | |
2203 | if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) { | |
793b883e SH |
2204 | u16 pci_err; |
2205 | ||
56a645cc | 2206 | pci_err = sky2_pci_read16(hw, PCI_STATUS); |
3be92a70 SH |
2207 | if (net_ratelimit()) |
2208 | printk(KERN_ERR PFX "%s: pci hw error (0x%x)\n", | |
2209 | pci_name(hw->pdev), pci_err); | |
cd28ab6a SH |
2210 | |
2211 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
56a645cc | 2212 | sky2_pci_write16(hw, PCI_STATUS, |
91aeb3ed | 2213 | pci_err | PCI_STATUS_ERROR_BITS); |
cd28ab6a SH |
2214 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
2215 | } | |
2216 | ||
2217 | if (status & Y2_IS_PCI_EXP) { | |
d571b694 | 2218 | /* PCI-Express uncorrectable Error occurred */ |
793b883e SH |
2219 | u32 pex_err; |
2220 | ||
7bd656d1 | 2221 | pex_err = sky2_pci_read32(hw, PEX_UNC_ERR_STAT); |
cd28ab6a | 2222 | |
3be92a70 SH |
2223 | if (net_ratelimit()) |
2224 | printk(KERN_ERR PFX "%s: pci express error (0x%x)\n", | |
2225 | pci_name(hw->pdev), pex_err); | |
cd28ab6a SH |
2226 | |
2227 | /* clear the interrupt */ | |
2228 | sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
7bd656d1 SH |
2229 | sky2_pci_write32(hw, PEX_UNC_ERR_STAT, |
2230 | 0xffffffffUL); | |
cd28ab6a SH |
2231 | sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
2232 | ||
7bd656d1 | 2233 | if (pex_err & PEX_FATAL_ERRORS) { |
cd28ab6a SH |
2234 | u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK); |
2235 | hwmsk &= ~Y2_IS_PCI_EXP; | |
2236 | sky2_write32(hw, B0_HWE_IMSK, hwmsk); | |
2237 | } | |
2238 | } | |
2239 | ||
2240 | if (status & Y2_HWE_L1_MASK) | |
2241 | sky2_hw_error(hw, 0, status); | |
2242 | status >>= 8; | |
2243 | if (status & Y2_HWE_L1_MASK) | |
2244 | sky2_hw_error(hw, 1, status); | |
2245 | } | |
2246 | ||
2247 | static void sky2_mac_intr(struct sky2_hw *hw, unsigned port) | |
2248 | { | |
2249 | struct net_device *dev = hw->dev[port]; | |
2250 | struct sky2_port *sky2 = netdev_priv(dev); | |
2251 | u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC)); | |
2252 | ||
2253 | if (netif_msg_intr(sky2)) | |
2254 | printk(KERN_INFO PFX "%s: mac interrupt status 0x%x\n", | |
2255 | dev->name, status); | |
2256 | ||
2257 | if (status & GM_IS_RX_FF_OR) { | |
2258 | ++sky2->net_stats.rx_fifo_errors; | |
2259 | sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO); | |
2260 | } | |
2261 | ||
2262 | if (status & GM_IS_TX_FF_UR) { | |
2263 | ++sky2->net_stats.tx_fifo_errors; | |
2264 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU); | |
2265 | } | |
cd28ab6a SH |
2266 | } |
2267 | ||
d257924e SH |
2268 | /* This should never happen it is a fatal situation */ |
2269 | static void sky2_descriptor_error(struct sky2_hw *hw, unsigned port, | |
2270 | const char *rxtx, u32 mask) | |
2271 | { | |
2272 | struct net_device *dev = hw->dev[port]; | |
2273 | struct sky2_port *sky2 = netdev_priv(dev); | |
2274 | u32 imask; | |
2275 | ||
2276 | printk(KERN_ERR PFX "%s: %s descriptor error (hardware problem)\n", | |
2277 | dev ? dev->name : "<not registered>", rxtx); | |
2278 | ||
2279 | imask = sky2_read32(hw, B0_IMSK); | |
2280 | imask &= ~mask; | |
2281 | sky2_write32(hw, B0_IMSK, imask); | |
2282 | ||
2283 | if (dev) { | |
2284 | spin_lock(&sky2->phy_lock); | |
2285 | sky2_link_down(sky2); | |
2286 | spin_unlock(&sky2->phy_lock); | |
2287 | } | |
2288 | } | |
cd28ab6a | 2289 | |
d27ed387 SH |
2290 | /* If idle then force a fake soft NAPI poll once a second |
2291 | * to work around cases where sharing an edge triggered interrupt. | |
2292 | */ | |
eb35cf60 SH |
2293 | static inline void sky2_idle_start(struct sky2_hw *hw) |
2294 | { | |
2295 | if (idle_timeout > 0) | |
2296 | mod_timer(&hw->idle_timer, | |
2297 | jiffies + msecs_to_jiffies(idle_timeout)); | |
2298 | } | |
2299 | ||
d27ed387 SH |
2300 | static void sky2_idle(unsigned long arg) |
2301 | { | |
01bd7564 SH |
2302 | struct sky2_hw *hw = (struct sky2_hw *) arg; |
2303 | struct net_device *dev = hw->dev[0]; | |
d27ed387 | 2304 | |
d27ed387 SH |
2305 | if (__netif_rx_schedule_prep(dev)) |
2306 | __netif_rx_schedule(dev); | |
01bd7564 SH |
2307 | |
2308 | mod_timer(&hw->idle_timer, jiffies + msecs_to_jiffies(idle_timeout)); | |
d27ed387 SH |
2309 | } |
2310 | ||
2311 | ||
e07b1aa8 | 2312 | static int sky2_poll(struct net_device *dev0, int *budget) |
cd28ab6a | 2313 | { |
e07b1aa8 SH |
2314 | struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw; |
2315 | int work_limit = min(dev0->quota, *budget); | |
2316 | int work_done = 0; | |
fb2690a9 | 2317 | u32 status = sky2_read32(hw, B0_Y2_SP_EISR); |
cd28ab6a | 2318 | |
1e5f1283 SH |
2319 | if (status & Y2_IS_HW_ERR) |
2320 | sky2_hw_intr(hw); | |
d257924e | 2321 | |
1e5f1283 SH |
2322 | if (status & Y2_IS_IRQ_PHY1) |
2323 | sky2_phy_intr(hw, 0); | |
cd28ab6a | 2324 | |
1e5f1283 SH |
2325 | if (status & Y2_IS_IRQ_PHY2) |
2326 | sky2_phy_intr(hw, 1); | |
cd28ab6a | 2327 | |
1e5f1283 SH |
2328 | if (status & Y2_IS_IRQ_MAC1) |
2329 | sky2_mac_intr(hw, 0); | |
cd28ab6a | 2330 | |
1e5f1283 SH |
2331 | if (status & Y2_IS_IRQ_MAC2) |
2332 | sky2_mac_intr(hw, 1); | |
cd28ab6a | 2333 | |
1e5f1283 SH |
2334 | if (status & Y2_IS_CHK_RX1) |
2335 | sky2_descriptor_error(hw, 0, "receive", Y2_IS_CHK_RX1); | |
d257924e | 2336 | |
1e5f1283 SH |
2337 | if (status & Y2_IS_CHK_RX2) |
2338 | sky2_descriptor_error(hw, 1, "receive", Y2_IS_CHK_RX2); | |
d257924e | 2339 | |
1e5f1283 SH |
2340 | if (status & Y2_IS_CHK_TXA1) |
2341 | sky2_descriptor_error(hw, 0, "transmit", Y2_IS_CHK_TXA1); | |
d257924e | 2342 | |
1e5f1283 SH |
2343 | if (status & Y2_IS_CHK_TXA2) |
2344 | sky2_descriptor_error(hw, 1, "transmit", Y2_IS_CHK_TXA2); | |
cd28ab6a | 2345 | |
1e5f1283 | 2346 | work_done = sky2_status_intr(hw, work_limit); |
fe2a24df SH |
2347 | if (work_done < work_limit) { |
2348 | netif_rx_complete(dev0); | |
86fba634 | 2349 | |
fe2a24df SH |
2350 | sky2_read32(hw, B0_Y2_SP_LISR); |
2351 | return 0; | |
2352 | } else { | |
2353 | *budget -= work_done; | |
2354 | dev0->quota -= work_done; | |
1e5f1283 | 2355 | return 1; |
fe2a24df | 2356 | } |
e07b1aa8 SH |
2357 | } |
2358 | ||
7d12e780 | 2359 | static irqreturn_t sky2_intr(int irq, void *dev_id) |
e07b1aa8 SH |
2360 | { |
2361 | struct sky2_hw *hw = dev_id; | |
2362 | struct net_device *dev0 = hw->dev[0]; | |
2363 | u32 status; | |
2364 | ||
2365 | /* Reading this mask interrupts as side effect */ | |
2366 | status = sky2_read32(hw, B0_Y2_SP_ISRC2); | |
2367 | if (status == 0 || status == ~0) | |
2368 | return IRQ_NONE; | |
793b883e | 2369 | |
e07b1aa8 SH |
2370 | prefetch(&hw->st_le[hw->st_idx]); |
2371 | if (likely(__netif_rx_schedule_prep(dev0))) | |
2372 | __netif_rx_schedule(dev0); | |
793b883e | 2373 | |
cd28ab6a SH |
2374 | return IRQ_HANDLED; |
2375 | } | |
2376 | ||
2377 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2378 | static void sky2_netpoll(struct net_device *dev) | |
2379 | { | |
2380 | struct sky2_port *sky2 = netdev_priv(dev); | |
88d11360 | 2381 | struct net_device *dev0 = sky2->hw->dev[0]; |
cd28ab6a | 2382 | |
88d11360 SH |
2383 | if (netif_running(dev) && __netif_rx_schedule_prep(dev0)) |
2384 | __netif_rx_schedule(dev0); | |
cd28ab6a SH |
2385 | } |
2386 | #endif | |
2387 | ||
2388 | /* Chip internal frequency for clock calculations */ | |
fb17358f | 2389 | static inline u32 sky2_mhz(const struct sky2_hw *hw) |
cd28ab6a | 2390 | { |
793b883e | 2391 | switch (hw->chip_id) { |
cd28ab6a | 2392 | case CHIP_ID_YUKON_EC: |
5a5b1ea0 | 2393 | case CHIP_ID_YUKON_EC_U: |
fb17358f | 2394 | return 125; /* 125 Mhz */ |
cd28ab6a | 2395 | case CHIP_ID_YUKON_FE: |
fb17358f | 2396 | return 100; /* 100 Mhz */ |
793b883e | 2397 | default: /* YUKON_XL */ |
fb17358f | 2398 | return 156; /* 156 Mhz */ |
cd28ab6a SH |
2399 | } |
2400 | } | |
2401 | ||
fb17358f | 2402 | static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us) |
cd28ab6a | 2403 | { |
fb17358f | 2404 | return sky2_mhz(hw) * us; |
cd28ab6a SH |
2405 | } |
2406 | ||
fb17358f | 2407 | static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk) |
cd28ab6a | 2408 | { |
fb17358f | 2409 | return clk / sky2_mhz(hw); |
cd28ab6a SH |
2410 | } |
2411 | ||
fb17358f | 2412 | |
59139528 | 2413 | static int sky2_reset(struct sky2_hw *hw) |
cd28ab6a | 2414 | { |
cd28ab6a | 2415 | u16 status; |
b89165f2 | 2416 | u8 t8; |
56a645cc | 2417 | int i; |
cd28ab6a | 2418 | |
cd28ab6a | 2419 | sky2_write8(hw, B0_CTST, CS_RST_CLR); |
08c06d8a | 2420 | |
cd28ab6a SH |
2421 | hw->chip_id = sky2_read8(hw, B2_CHIP_ID); |
2422 | if (hw->chip_id < CHIP_ID_YUKON_XL || hw->chip_id > CHIP_ID_YUKON_FE) { | |
2423 | printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n", | |
2424 | pci_name(hw->pdev), hw->chip_id); | |
2425 | return -EOPNOTSUPP; | |
2426 | } | |
2427 | ||
290d4de5 SH |
2428 | hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4; |
2429 | ||
2430 | /* This rev is really old, and requires untested workarounds */ | |
2431 | if (hw->chip_id == CHIP_ID_YUKON_EC && hw->chip_rev == CHIP_REV_YU_EC_A1) { | |
2432 | printk(KERN_ERR PFX "%s: unsupported revision Yukon-%s (0x%x) rev %d\n", | |
2433 | pci_name(hw->pdev), yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL], | |
2434 | hw->chip_id, hw->chip_rev); | |
2435 | return -EOPNOTSUPP; | |
2436 | } | |
2437 | ||
cd28ab6a SH |
2438 | /* disable ASF */ |
2439 | if (hw->chip_id <= CHIP_ID_YUKON_EC) { | |
2440 | sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET); | |
2441 | sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE); | |
2442 | } | |
2443 | ||
2444 | /* do a SW reset */ | |
2445 | sky2_write8(hw, B0_CTST, CS_RST_SET); | |
2446 | sky2_write8(hw, B0_CTST, CS_RST_CLR); | |
2447 | ||
2448 | /* clear PCI errors, if any */ | |
56a645cc | 2449 | status = sky2_pci_read16(hw, PCI_STATUS); |
2d42d21f | 2450 | |
cd28ab6a | 2451 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); |
56a645cc SH |
2452 | sky2_pci_write16(hw, PCI_STATUS, status | PCI_STATUS_ERROR_BITS); |
2453 | ||
cd28ab6a SH |
2454 | |
2455 | sky2_write8(hw, B0_CTST, CS_MRST_CLR); | |
2456 | ||
2457 | /* clear any PEX errors */ | |
7bd656d1 SH |
2458 | if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP)) |
2459 | sky2_pci_write32(hw, PEX_UNC_ERR_STAT, 0xffffffffUL); | |
2460 | ||
cd28ab6a | 2461 | |
b89165f2 | 2462 | hw->pmd_type = sky2_read8(hw, B2_PMD_TYP); |
cd28ab6a SH |
2463 | hw->ports = 1; |
2464 | t8 = sky2_read8(hw, B2_Y2_HW_RES); | |
2465 | if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) { | |
2466 | if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC)) | |
2467 | ++hw->ports; | |
2468 | } | |
cd28ab6a | 2469 | |
5afa0a9c | 2470 | sky2_set_power_state(hw, PCI_D0); |
cd28ab6a SH |
2471 | |
2472 | for (i = 0; i < hw->ports; i++) { | |
2473 | sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET); | |
2474 | sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR); | |
2475 | } | |
2476 | ||
2477 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); | |
2478 | ||
793b883e SH |
2479 | /* Clear I2C IRQ noise */ |
2480 | sky2_write32(hw, B2_I2C_IRQ, 1); | |
cd28ab6a SH |
2481 | |
2482 | /* turn off hardware timer (unused) */ | |
2483 | sky2_write8(hw, B2_TI_CTRL, TIM_STOP); | |
2484 | sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ); | |
793b883e | 2485 | |
cd28ab6a SH |
2486 | sky2_write8(hw, B0_Y2LED, LED_STAT_ON); |
2487 | ||
69634ee7 SH |
2488 | /* Turn off descriptor polling */ |
2489 | sky2_write32(hw, B28_DPT_CTRL, DPT_STOP); | |
cd28ab6a SH |
2490 | |
2491 | /* Turn off receive timestamp */ | |
2492 | sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP); | |
793b883e | 2493 | sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); |
cd28ab6a SH |
2494 | |
2495 | /* enable the Tx Arbiters */ | |
2496 | for (i = 0; i < hw->ports; i++) | |
2497 | sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB); | |
2498 | ||
2499 | /* Initialize ram interface */ | |
2500 | for (i = 0; i < hw->ports; i++) { | |
793b883e | 2501 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR); |
cd28ab6a SH |
2502 | |
2503 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53); | |
2504 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53); | |
2505 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53); | |
2506 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53); | |
2507 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53); | |
2508 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53); | |
2509 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53); | |
2510 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53); | |
2511 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53); | |
2512 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53); | |
2513 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53); | |
2514 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53); | |
2515 | } | |
2516 | ||
7bd656d1 | 2517 | sky2_write32(hw, B0_HWE_IMSK, Y2_HWE_ALL_MASK); |
cd28ab6a | 2518 | |
cd28ab6a | 2519 | for (i = 0; i < hw->ports; i++) |
d3bcfbeb | 2520 | sky2_gmac_reset(hw, i); |
cd28ab6a | 2521 | |
cd28ab6a SH |
2522 | memset(hw->st_le, 0, STATUS_LE_BYTES); |
2523 | hw->st_idx = 0; | |
2524 | ||
2525 | sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET); | |
2526 | sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR); | |
2527 | ||
2528 | sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma); | |
793b883e | 2529 | sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32); |
cd28ab6a SH |
2530 | |
2531 | /* Set the list last index */ | |
793b883e | 2532 | sky2_write16(hw, STAT_LAST_IDX, STATUS_RING_SIZE - 1); |
cd28ab6a | 2533 | |
290d4de5 SH |
2534 | sky2_write16(hw, STAT_TX_IDX_TH, 10); |
2535 | sky2_write8(hw, STAT_FIFO_WM, 16); | |
cd28ab6a | 2536 | |
290d4de5 SH |
2537 | /* set Status-FIFO ISR watermark */ |
2538 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0) | |
2539 | sky2_write8(hw, STAT_FIFO_ISR_WM, 4); | |
2540 | else | |
2541 | sky2_write8(hw, STAT_FIFO_ISR_WM, 16); | |
cd28ab6a | 2542 | |
290d4de5 | 2543 | sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 1000)); |
77b3d6a2 SH |
2544 | sky2_write32(hw, STAT_ISR_TIMER_INI, sky2_us2clk(hw, 20)); |
2545 | sky2_write32(hw, STAT_LEV_TIMER_INI, sky2_us2clk(hw, 100)); | |
cd28ab6a | 2546 | |
793b883e | 2547 | /* enable status unit */ |
cd28ab6a SH |
2548 | sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON); |
2549 | ||
2550 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); | |
2551 | sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START); | |
2552 | sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START); | |
2553 | ||
2554 | return 0; | |
2555 | } | |
2556 | ||
28bd181a | 2557 | static u32 sky2_supported_modes(const struct sky2_hw *hw) |
cd28ab6a | 2558 | { |
b89165f2 SH |
2559 | if (sky2_is_copper(hw)) { |
2560 | u32 modes = SUPPORTED_10baseT_Half | |
2561 | | SUPPORTED_10baseT_Full | |
2562 | | SUPPORTED_100baseT_Half | |
2563 | | SUPPORTED_100baseT_Full | |
2564 | | SUPPORTED_Autoneg | SUPPORTED_TP; | |
cd28ab6a SH |
2565 | |
2566 | if (hw->chip_id != CHIP_ID_YUKON_FE) | |
2567 | modes |= SUPPORTED_1000baseT_Half | |
b89165f2 SH |
2568 | | SUPPORTED_1000baseT_Full; |
2569 | return modes; | |
cd28ab6a | 2570 | } else |
b89165f2 SH |
2571 | return SUPPORTED_1000baseT_Half |
2572 | | SUPPORTED_1000baseT_Full | |
2573 | | SUPPORTED_Autoneg | |
2574 | | SUPPORTED_FIBRE; | |
cd28ab6a SH |
2575 | } |
2576 | ||
793b883e | 2577 | static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
cd28ab6a SH |
2578 | { |
2579 | struct sky2_port *sky2 = netdev_priv(dev); | |
2580 | struct sky2_hw *hw = sky2->hw; | |
2581 | ||
2582 | ecmd->transceiver = XCVR_INTERNAL; | |
2583 | ecmd->supported = sky2_supported_modes(hw); | |
2584 | ecmd->phy_address = PHY_ADDR_MARV; | |
b89165f2 | 2585 | if (sky2_is_copper(hw)) { |
cd28ab6a | 2586 | ecmd->supported = SUPPORTED_10baseT_Half |
793b883e SH |
2587 | | SUPPORTED_10baseT_Full |
2588 | | SUPPORTED_100baseT_Half | |
2589 | | SUPPORTED_100baseT_Full | |
2590 | | SUPPORTED_1000baseT_Half | |
2591 | | SUPPORTED_1000baseT_Full | |
2592 | | SUPPORTED_Autoneg | SUPPORTED_TP; | |
cd28ab6a | 2593 | ecmd->port = PORT_TP; |
b89165f2 SH |
2594 | ecmd->speed = sky2->speed; |
2595 | } else { | |
2596 | ecmd->speed = SPEED_1000; | |
cd28ab6a | 2597 | ecmd->port = PORT_FIBRE; |
b89165f2 | 2598 | } |
cd28ab6a SH |
2599 | |
2600 | ecmd->advertising = sky2->advertising; | |
2601 | ecmd->autoneg = sky2->autoneg; | |
cd28ab6a SH |
2602 | ecmd->duplex = sky2->duplex; |
2603 | return 0; | |
2604 | } | |
2605 | ||
2606 | static int sky2_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
2607 | { | |
2608 | struct sky2_port *sky2 = netdev_priv(dev); | |
2609 | const struct sky2_hw *hw = sky2->hw; | |
2610 | u32 supported = sky2_supported_modes(hw); | |
2611 | ||
2612 | if (ecmd->autoneg == AUTONEG_ENABLE) { | |
2613 | ecmd->advertising = supported; | |
2614 | sky2->duplex = -1; | |
2615 | sky2->speed = -1; | |
2616 | } else { | |
2617 | u32 setting; | |
2618 | ||
793b883e | 2619 | switch (ecmd->speed) { |
cd28ab6a SH |
2620 | case SPEED_1000: |
2621 | if (ecmd->duplex == DUPLEX_FULL) | |
2622 | setting = SUPPORTED_1000baseT_Full; | |
2623 | else if (ecmd->duplex == DUPLEX_HALF) | |
2624 | setting = SUPPORTED_1000baseT_Half; | |
2625 | else | |
2626 | return -EINVAL; | |
2627 | break; | |
2628 | case SPEED_100: | |
2629 | if (ecmd->duplex == DUPLEX_FULL) | |
2630 | setting = SUPPORTED_100baseT_Full; | |
2631 | else if (ecmd->duplex == DUPLEX_HALF) | |
2632 | setting = SUPPORTED_100baseT_Half; | |
2633 | else | |
2634 | return -EINVAL; | |
2635 | break; | |
2636 | ||
2637 | case SPEED_10: | |
2638 | if (ecmd->duplex == DUPLEX_FULL) | |
2639 | setting = SUPPORTED_10baseT_Full; | |
2640 | else if (ecmd->duplex == DUPLEX_HALF) | |
2641 | setting = SUPPORTED_10baseT_Half; | |
2642 | else | |
2643 | return -EINVAL; | |
2644 | break; | |
2645 | default: | |
2646 | return -EINVAL; | |
2647 | } | |
2648 | ||
2649 | if ((setting & supported) == 0) | |
2650 | return -EINVAL; | |
2651 | ||
2652 | sky2->speed = ecmd->speed; | |
2653 | sky2->duplex = ecmd->duplex; | |
2654 | } | |
2655 | ||
2656 | sky2->autoneg = ecmd->autoneg; | |
2657 | sky2->advertising = ecmd->advertising; | |
2658 | ||
1b537565 SH |
2659 | if (netif_running(dev)) |
2660 | sky2_phy_reinit(sky2); | |
cd28ab6a SH |
2661 | |
2662 | return 0; | |
2663 | } | |
2664 | ||
2665 | static void sky2_get_drvinfo(struct net_device *dev, | |
2666 | struct ethtool_drvinfo *info) | |
2667 | { | |
2668 | struct sky2_port *sky2 = netdev_priv(dev); | |
2669 | ||
2670 | strcpy(info->driver, DRV_NAME); | |
2671 | strcpy(info->version, DRV_VERSION); | |
2672 | strcpy(info->fw_version, "N/A"); | |
2673 | strcpy(info->bus_info, pci_name(sky2->hw->pdev)); | |
2674 | } | |
2675 | ||
2676 | static const struct sky2_stat { | |
793b883e SH |
2677 | char name[ETH_GSTRING_LEN]; |
2678 | u16 offset; | |
cd28ab6a SH |
2679 | } sky2_stats[] = { |
2680 | { "tx_bytes", GM_TXO_OK_HI }, | |
2681 | { "rx_bytes", GM_RXO_OK_HI }, | |
2682 | { "tx_broadcast", GM_TXF_BC_OK }, | |
2683 | { "rx_broadcast", GM_RXF_BC_OK }, | |
2684 | { "tx_multicast", GM_TXF_MC_OK }, | |
2685 | { "rx_multicast", GM_RXF_MC_OK }, | |
2686 | { "tx_unicast", GM_TXF_UC_OK }, | |
2687 | { "rx_unicast", GM_RXF_UC_OK }, | |
2688 | { "tx_mac_pause", GM_TXF_MPAUSE }, | |
2689 | { "rx_mac_pause", GM_RXF_MPAUSE }, | |
eadfa7dd | 2690 | { "collisions", GM_TXF_COL }, |
cd28ab6a SH |
2691 | { "late_collision",GM_TXF_LAT_COL }, |
2692 | { "aborted", GM_TXF_ABO_COL }, | |
eadfa7dd | 2693 | { "single_collisions", GM_TXF_SNG_COL }, |
cd28ab6a | 2694 | { "multi_collisions", GM_TXF_MUL_COL }, |
eadfa7dd | 2695 | |
d2604540 | 2696 | { "rx_short", GM_RXF_SHT }, |
cd28ab6a | 2697 | { "rx_runt", GM_RXE_FRAG }, |
eadfa7dd SH |
2698 | { "rx_64_byte_packets", GM_RXF_64B }, |
2699 | { "rx_65_to_127_byte_packets", GM_RXF_127B }, | |
2700 | { "rx_128_to_255_byte_packets", GM_RXF_255B }, | |
2701 | { "rx_256_to_511_byte_packets", GM_RXF_511B }, | |
2702 | { "rx_512_to_1023_byte_packets", GM_RXF_1023B }, | |
2703 | { "rx_1024_to_1518_byte_packets", GM_RXF_1518B }, | |
2704 | { "rx_1518_to_max_byte_packets", GM_RXF_MAX_SZ }, | |
cd28ab6a | 2705 | { "rx_too_long", GM_RXF_LNG_ERR }, |
eadfa7dd SH |
2706 | { "rx_fifo_overflow", GM_RXE_FIFO_OV }, |
2707 | { "rx_jabber", GM_RXF_JAB_PKT }, | |
cd28ab6a | 2708 | { "rx_fcs_error", GM_RXF_FCS_ERR }, |
eadfa7dd SH |
2709 | |
2710 | { "tx_64_byte_packets", GM_TXF_64B }, | |
2711 | { "tx_65_to_127_byte_packets", GM_TXF_127B }, | |
2712 | { "tx_128_to_255_byte_packets", GM_TXF_255B }, | |
2713 | { "tx_256_to_511_byte_packets", GM_TXF_511B }, | |
2714 | { "tx_512_to_1023_byte_packets", GM_TXF_1023B }, | |
2715 | { "tx_1024_to_1518_byte_packets", GM_TXF_1518B }, | |
2716 | { "tx_1519_to_max_byte_packets", GM_TXF_MAX_SZ }, | |
2717 | { "tx_fifo_underrun", GM_TXE_FIFO_UR }, | |
cd28ab6a SH |
2718 | }; |
2719 | ||
cd28ab6a SH |
2720 | static u32 sky2_get_rx_csum(struct net_device *dev) |
2721 | { | |
2722 | struct sky2_port *sky2 = netdev_priv(dev); | |
2723 | ||
2724 | return sky2->rx_csum; | |
2725 | } | |
2726 | ||
2727 | static int sky2_set_rx_csum(struct net_device *dev, u32 data) | |
2728 | { | |
2729 | struct sky2_port *sky2 = netdev_priv(dev); | |
2730 | ||
2731 | sky2->rx_csum = data; | |
793b883e | 2732 | |
cd28ab6a SH |
2733 | sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR), |
2734 | data ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM); | |
2735 | ||
2736 | return 0; | |
2737 | } | |
2738 | ||
2739 | static u32 sky2_get_msglevel(struct net_device *netdev) | |
2740 | { | |
2741 | struct sky2_port *sky2 = netdev_priv(netdev); | |
2742 | return sky2->msg_enable; | |
2743 | } | |
2744 | ||
9a7ae0a9 SH |
2745 | static int sky2_nway_reset(struct net_device *dev) |
2746 | { | |
2747 | struct sky2_port *sky2 = netdev_priv(dev); | |
9a7ae0a9 | 2748 | |
16ad91e1 | 2749 | if (!netif_running(dev) || sky2->autoneg != AUTONEG_ENABLE) |
9a7ae0a9 SH |
2750 | return -EINVAL; |
2751 | ||
1b537565 | 2752 | sky2_phy_reinit(sky2); |
9a7ae0a9 SH |
2753 | |
2754 | return 0; | |
2755 | } | |
2756 | ||
793b883e | 2757 | static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count) |
cd28ab6a SH |
2758 | { |
2759 | struct sky2_hw *hw = sky2->hw; | |
2760 | unsigned port = sky2->port; | |
2761 | int i; | |
2762 | ||
2763 | data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32 | |
793b883e | 2764 | | (u64) gma_read32(hw, port, GM_TXO_OK_LO); |
cd28ab6a | 2765 | data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32 |
793b883e | 2766 | | (u64) gma_read32(hw, port, GM_RXO_OK_LO); |
cd28ab6a | 2767 | |
793b883e | 2768 | for (i = 2; i < count; i++) |
cd28ab6a SH |
2769 | data[i] = (u64) gma_read32(hw, port, sky2_stats[i].offset); |
2770 | } | |
2771 | ||
cd28ab6a SH |
2772 | static void sky2_set_msglevel(struct net_device *netdev, u32 value) |
2773 | { | |
2774 | struct sky2_port *sky2 = netdev_priv(netdev); | |
2775 | sky2->msg_enable = value; | |
2776 | } | |
2777 | ||
2778 | static int sky2_get_stats_count(struct net_device *dev) | |
2779 | { | |
2780 | return ARRAY_SIZE(sky2_stats); | |
2781 | } | |
2782 | ||
2783 | static void sky2_get_ethtool_stats(struct net_device *dev, | |
793b883e | 2784 | struct ethtool_stats *stats, u64 * data) |
cd28ab6a SH |
2785 | { |
2786 | struct sky2_port *sky2 = netdev_priv(dev); | |
2787 | ||
793b883e | 2788 | sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats)); |
cd28ab6a SH |
2789 | } |
2790 | ||
793b883e | 2791 | static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data) |
cd28ab6a SH |
2792 | { |
2793 | int i; | |
2794 | ||
2795 | switch (stringset) { | |
2796 | case ETH_SS_STATS: | |
2797 | for (i = 0; i < ARRAY_SIZE(sky2_stats); i++) | |
2798 | memcpy(data + i * ETH_GSTRING_LEN, | |
2799 | sky2_stats[i].name, ETH_GSTRING_LEN); | |
2800 | break; | |
2801 | } | |
2802 | } | |
2803 | ||
2804 | /* Use hardware MIB variables for critical path statistics and | |
2805 | * transmit feedback not reported at interrupt. | |
2806 | * Other errors are accounted for in interrupt handler. | |
2807 | */ | |
2808 | static struct net_device_stats *sky2_get_stats(struct net_device *dev) | |
2809 | { | |
2810 | struct sky2_port *sky2 = netdev_priv(dev); | |
793b883e | 2811 | u64 data[13]; |
cd28ab6a | 2812 | |
793b883e | 2813 | sky2_phy_stats(sky2, data, ARRAY_SIZE(data)); |
cd28ab6a SH |
2814 | |
2815 | sky2->net_stats.tx_bytes = data[0]; | |
2816 | sky2->net_stats.rx_bytes = data[1]; | |
2817 | sky2->net_stats.tx_packets = data[2] + data[4] + data[6]; | |
2818 | sky2->net_stats.rx_packets = data[3] + data[5] + data[7]; | |
050ff180 | 2819 | sky2->net_stats.multicast = data[3] + data[5]; |
cd28ab6a SH |
2820 | sky2->net_stats.collisions = data[10]; |
2821 | sky2->net_stats.tx_aborted_errors = data[12]; | |
2822 | ||
2823 | return &sky2->net_stats; | |
2824 | } | |
2825 | ||
2826 | static int sky2_set_mac_address(struct net_device *dev, void *p) | |
2827 | { | |
2828 | struct sky2_port *sky2 = netdev_priv(dev); | |
a8ab1ec0 SH |
2829 | struct sky2_hw *hw = sky2->hw; |
2830 | unsigned port = sky2->port; | |
2831 | const struct sockaddr *addr = p; | |
cd28ab6a SH |
2832 | |
2833 | if (!is_valid_ether_addr(addr->sa_data)) | |
2834 | return -EADDRNOTAVAIL; | |
2835 | ||
cd28ab6a | 2836 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); |
a8ab1ec0 | 2837 | memcpy_toio(hw->regs + B2_MAC_1 + port * 8, |
cd28ab6a | 2838 | dev->dev_addr, ETH_ALEN); |
a8ab1ec0 | 2839 | memcpy_toio(hw->regs + B2_MAC_2 + port * 8, |
cd28ab6a | 2840 | dev->dev_addr, ETH_ALEN); |
1b537565 | 2841 | |
a8ab1ec0 SH |
2842 | /* virtual address for data */ |
2843 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr); | |
2844 | ||
2845 | /* physical address: used for pause frames */ | |
2846 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr); | |
1b537565 SH |
2847 | |
2848 | return 0; | |
cd28ab6a SH |
2849 | } |
2850 | ||
a052b52f SH |
2851 | static void inline sky2_add_filter(u8 filter[8], const u8 *addr) |
2852 | { | |
2853 | u32 bit; | |
2854 | ||
2855 | bit = ether_crc(ETH_ALEN, addr) & 63; | |
2856 | filter[bit >> 3] |= 1 << (bit & 7); | |
2857 | } | |
2858 | ||
cd28ab6a SH |
2859 | static void sky2_set_multicast(struct net_device *dev) |
2860 | { | |
2861 | struct sky2_port *sky2 = netdev_priv(dev); | |
2862 | struct sky2_hw *hw = sky2->hw; | |
2863 | unsigned port = sky2->port; | |
2864 | struct dev_mc_list *list = dev->mc_list; | |
2865 | u16 reg; | |
2866 | u8 filter[8]; | |
a052b52f SH |
2867 | int rx_pause; |
2868 | static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 }; | |
cd28ab6a | 2869 | |
a052b52f | 2870 | rx_pause = (sky2->flow_status == FC_RX || sky2->flow_status == FC_BOTH); |
cd28ab6a SH |
2871 | memset(filter, 0, sizeof(filter)); |
2872 | ||
2873 | reg = gma_read16(hw, port, GM_RX_CTRL); | |
2874 | reg |= GM_RXCR_UCF_ENA; | |
2875 | ||
d571b694 | 2876 | if (dev->flags & IFF_PROMISC) /* promiscuous */ |
cd28ab6a | 2877 | reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); |
a052b52f | 2878 | else if (dev->flags & IFF_ALLMULTI) |
cd28ab6a | 2879 | memset(filter, 0xff, sizeof(filter)); |
a052b52f | 2880 | else if (dev->mc_count == 0 && !rx_pause) |
cd28ab6a SH |
2881 | reg &= ~GM_RXCR_MCF_ENA; |
2882 | else { | |
2883 | int i; | |
2884 | reg |= GM_RXCR_MCF_ENA; | |
2885 | ||
a052b52f SH |
2886 | if (rx_pause) |
2887 | sky2_add_filter(filter, pause_mc_addr); | |
2888 | ||
2889 | for (i = 0; list && i < dev->mc_count; i++, list = list->next) | |
2890 | sky2_add_filter(filter, list->dmi_addr); | |
cd28ab6a SH |
2891 | } |
2892 | ||
cd28ab6a | 2893 | gma_write16(hw, port, GM_MC_ADDR_H1, |
793b883e | 2894 | (u16) filter[0] | ((u16) filter[1] << 8)); |
cd28ab6a | 2895 | gma_write16(hw, port, GM_MC_ADDR_H2, |
793b883e | 2896 | (u16) filter[2] | ((u16) filter[3] << 8)); |
cd28ab6a | 2897 | gma_write16(hw, port, GM_MC_ADDR_H3, |
793b883e | 2898 | (u16) filter[4] | ((u16) filter[5] << 8)); |
cd28ab6a | 2899 | gma_write16(hw, port, GM_MC_ADDR_H4, |
793b883e | 2900 | (u16) filter[6] | ((u16) filter[7] << 8)); |
cd28ab6a SH |
2901 | |
2902 | gma_write16(hw, port, GM_RX_CTRL, reg); | |
2903 | } | |
2904 | ||
2905 | /* Can have one global because blinking is controlled by | |
2906 | * ethtool and that is always under RTNL mutex | |
2907 | */ | |
91c86df5 | 2908 | static void sky2_led(struct sky2_hw *hw, unsigned port, int on) |
cd28ab6a | 2909 | { |
793b883e SH |
2910 | u16 pg; |
2911 | ||
793b883e SH |
2912 | switch (hw->chip_id) { |
2913 | case CHIP_ID_YUKON_XL: | |
2914 | pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
2915 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
2916 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, | |
2917 | on ? (PHY_M_LEDC_LOS_CTRL(1) | | |
2918 | PHY_M_LEDC_INIT_CTRL(7) | | |
2919 | PHY_M_LEDC_STA1_CTRL(7) | | |
2920 | PHY_M_LEDC_STA0_CTRL(7)) | |
2921 | : 0); | |
2922 | ||
2923 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
2924 | break; | |
2925 | ||
2926 | default: | |
2927 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); | |
cd28ab6a | 2928 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, |
793b883e SH |
2929 | on ? PHY_M_LED_MO_DUP(MO_LED_ON) | |
2930 | PHY_M_LED_MO_10(MO_LED_ON) | | |
2931 | PHY_M_LED_MO_100(MO_LED_ON) | | |
cd28ab6a | 2932 | PHY_M_LED_MO_1000(MO_LED_ON) | |
793b883e SH |
2933 | PHY_M_LED_MO_RX(MO_LED_ON) |
2934 | : PHY_M_LED_MO_DUP(MO_LED_OFF) | | |
2935 | PHY_M_LED_MO_10(MO_LED_OFF) | | |
2936 | PHY_M_LED_MO_100(MO_LED_OFF) | | |
cd28ab6a SH |
2937 | PHY_M_LED_MO_1000(MO_LED_OFF) | |
2938 | PHY_M_LED_MO_RX(MO_LED_OFF)); | |
2939 | ||
793b883e | 2940 | } |
cd28ab6a SH |
2941 | } |
2942 | ||
2943 | /* blink LED's for finding board */ | |
2944 | static int sky2_phys_id(struct net_device *dev, u32 data) | |
2945 | { | |
2946 | struct sky2_port *sky2 = netdev_priv(dev); | |
2947 | struct sky2_hw *hw = sky2->hw; | |
2948 | unsigned port = sky2->port; | |
793b883e | 2949 | u16 ledctrl, ledover = 0; |
cd28ab6a | 2950 | long ms; |
91c86df5 | 2951 | int interrupted; |
cd28ab6a SH |
2952 | int onoff = 1; |
2953 | ||
793b883e | 2954 | if (!data || data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ)) |
cd28ab6a SH |
2955 | ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT); |
2956 | else | |
2957 | ms = data * 1000; | |
2958 | ||
2959 | /* save initial values */ | |
e07b1aa8 | 2960 | spin_lock_bh(&sky2->phy_lock); |
793b883e SH |
2961 | if (hw->chip_id == CHIP_ID_YUKON_XL) { |
2962 | u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
2963 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
2964 | ledctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
2965 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
2966 | } else { | |
2967 | ledctrl = gm_phy_read(hw, port, PHY_MARV_LED_CTRL); | |
2968 | ledover = gm_phy_read(hw, port, PHY_MARV_LED_OVER); | |
2969 | } | |
cd28ab6a | 2970 | |
91c86df5 SH |
2971 | interrupted = 0; |
2972 | while (!interrupted && ms > 0) { | |
cd28ab6a SH |
2973 | sky2_led(hw, port, onoff); |
2974 | onoff = !onoff; | |
2975 | ||
e07b1aa8 | 2976 | spin_unlock_bh(&sky2->phy_lock); |
91c86df5 | 2977 | interrupted = msleep_interruptible(250); |
e07b1aa8 | 2978 | spin_lock_bh(&sky2->phy_lock); |
91c86df5 | 2979 | |
cd28ab6a SH |
2980 | ms -= 250; |
2981 | } | |
2982 | ||
2983 | /* resume regularly scheduled programming */ | |
793b883e SH |
2984 | if (hw->chip_id == CHIP_ID_YUKON_XL) { |
2985 | u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
2986 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
2987 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ledctrl); | |
2988 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
2989 | } else { | |
2990 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl); | |
2991 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover); | |
2992 | } | |
e07b1aa8 | 2993 | spin_unlock_bh(&sky2->phy_lock); |
cd28ab6a SH |
2994 | |
2995 | return 0; | |
2996 | } | |
2997 | ||
2998 | static void sky2_get_pauseparam(struct net_device *dev, | |
2999 | struct ethtool_pauseparam *ecmd) | |
3000 | { | |
3001 | struct sky2_port *sky2 = netdev_priv(dev); | |
3002 | ||
16ad91e1 SH |
3003 | switch (sky2->flow_mode) { |
3004 | case FC_NONE: | |
3005 | ecmd->tx_pause = ecmd->rx_pause = 0; | |
3006 | break; | |
3007 | case FC_TX: | |
3008 | ecmd->tx_pause = 1, ecmd->rx_pause = 0; | |
3009 | break; | |
3010 | case FC_RX: | |
3011 | ecmd->tx_pause = 0, ecmd->rx_pause = 1; | |
3012 | break; | |
3013 | case FC_BOTH: | |
3014 | ecmd->tx_pause = ecmd->rx_pause = 1; | |
3015 | } | |
3016 | ||
cd28ab6a SH |
3017 | ecmd->autoneg = sky2->autoneg; |
3018 | } | |
3019 | ||
3020 | static int sky2_set_pauseparam(struct net_device *dev, | |
3021 | struct ethtool_pauseparam *ecmd) | |
3022 | { | |
3023 | struct sky2_port *sky2 = netdev_priv(dev); | |
cd28ab6a SH |
3024 | |
3025 | sky2->autoneg = ecmd->autoneg; | |
16ad91e1 | 3026 | sky2->flow_mode = sky2_flow(ecmd->rx_pause, ecmd->tx_pause); |
cd28ab6a | 3027 | |
16ad91e1 SH |
3028 | if (netif_running(dev)) |
3029 | sky2_phy_reinit(sky2); | |
cd28ab6a | 3030 | |
2eaba1a2 | 3031 | return 0; |
cd28ab6a SH |
3032 | } |
3033 | ||
fb17358f SH |
3034 | static int sky2_get_coalesce(struct net_device *dev, |
3035 | struct ethtool_coalesce *ecmd) | |
3036 | { | |
3037 | struct sky2_port *sky2 = netdev_priv(dev); | |
3038 | struct sky2_hw *hw = sky2->hw; | |
3039 | ||
3040 | if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_STOP) | |
3041 | ecmd->tx_coalesce_usecs = 0; | |
3042 | else { | |
3043 | u32 clks = sky2_read32(hw, STAT_TX_TIMER_INI); | |
3044 | ecmd->tx_coalesce_usecs = sky2_clk2us(hw, clks); | |
3045 | } | |
3046 | ecmd->tx_max_coalesced_frames = sky2_read16(hw, STAT_TX_IDX_TH); | |
3047 | ||
3048 | if (sky2_read8(hw, STAT_LEV_TIMER_CTRL) == TIM_STOP) | |
3049 | ecmd->rx_coalesce_usecs = 0; | |
3050 | else { | |
3051 | u32 clks = sky2_read32(hw, STAT_LEV_TIMER_INI); | |
3052 | ecmd->rx_coalesce_usecs = sky2_clk2us(hw, clks); | |
3053 | } | |
3054 | ecmd->rx_max_coalesced_frames = sky2_read8(hw, STAT_FIFO_WM); | |
3055 | ||
3056 | if (sky2_read8(hw, STAT_ISR_TIMER_CTRL) == TIM_STOP) | |
3057 | ecmd->rx_coalesce_usecs_irq = 0; | |
3058 | else { | |
3059 | u32 clks = sky2_read32(hw, STAT_ISR_TIMER_INI); | |
3060 | ecmd->rx_coalesce_usecs_irq = sky2_clk2us(hw, clks); | |
3061 | } | |
3062 | ||
3063 | ecmd->rx_max_coalesced_frames_irq = sky2_read8(hw, STAT_FIFO_ISR_WM); | |
3064 | ||
3065 | return 0; | |
3066 | } | |
3067 | ||
3068 | /* Note: this affect both ports */ | |
3069 | static int sky2_set_coalesce(struct net_device *dev, | |
3070 | struct ethtool_coalesce *ecmd) | |
3071 | { | |
3072 | struct sky2_port *sky2 = netdev_priv(dev); | |
3073 | struct sky2_hw *hw = sky2->hw; | |
77b3d6a2 | 3074 | const u32 tmax = sky2_clk2us(hw, 0x0ffffff); |
fb17358f | 3075 | |
77b3d6a2 SH |
3076 | if (ecmd->tx_coalesce_usecs > tmax || |
3077 | ecmd->rx_coalesce_usecs > tmax || | |
3078 | ecmd->rx_coalesce_usecs_irq > tmax) | |
fb17358f SH |
3079 | return -EINVAL; |
3080 | ||
ff81fbbe | 3081 | if (ecmd->tx_max_coalesced_frames >= TX_RING_SIZE-1) |
fb17358f | 3082 | return -EINVAL; |
ff81fbbe | 3083 | if (ecmd->rx_max_coalesced_frames > RX_MAX_PENDING) |
fb17358f | 3084 | return -EINVAL; |
ff81fbbe | 3085 | if (ecmd->rx_max_coalesced_frames_irq >RX_MAX_PENDING) |
fb17358f SH |
3086 | return -EINVAL; |
3087 | ||
3088 | if (ecmd->tx_coalesce_usecs == 0) | |
3089 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP); | |
3090 | else { | |
3091 | sky2_write32(hw, STAT_TX_TIMER_INI, | |
3092 | sky2_us2clk(hw, ecmd->tx_coalesce_usecs)); | |
3093 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); | |
3094 | } | |
3095 | sky2_write16(hw, STAT_TX_IDX_TH, ecmd->tx_max_coalesced_frames); | |
3096 | ||
3097 | if (ecmd->rx_coalesce_usecs == 0) | |
3098 | sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_STOP); | |
3099 | else { | |
3100 | sky2_write32(hw, STAT_LEV_TIMER_INI, | |
3101 | sky2_us2clk(hw, ecmd->rx_coalesce_usecs)); | |
3102 | sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START); | |
3103 | } | |
3104 | sky2_write8(hw, STAT_FIFO_WM, ecmd->rx_max_coalesced_frames); | |
3105 | ||
3106 | if (ecmd->rx_coalesce_usecs_irq == 0) | |
3107 | sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_STOP); | |
3108 | else { | |
d28d4870 | 3109 | sky2_write32(hw, STAT_ISR_TIMER_INI, |
fb17358f SH |
3110 | sky2_us2clk(hw, ecmd->rx_coalesce_usecs_irq)); |
3111 | sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START); | |
3112 | } | |
3113 | sky2_write8(hw, STAT_FIFO_ISR_WM, ecmd->rx_max_coalesced_frames_irq); | |
3114 | return 0; | |
3115 | } | |
3116 | ||
793b883e SH |
3117 | static void sky2_get_ringparam(struct net_device *dev, |
3118 | struct ethtool_ringparam *ering) | |
3119 | { | |
3120 | struct sky2_port *sky2 = netdev_priv(dev); | |
3121 | ||
3122 | ering->rx_max_pending = RX_MAX_PENDING; | |
3123 | ering->rx_mini_max_pending = 0; | |
3124 | ering->rx_jumbo_max_pending = 0; | |
3125 | ering->tx_max_pending = TX_RING_SIZE - 1; | |
3126 | ||
3127 | ering->rx_pending = sky2->rx_pending; | |
3128 | ering->rx_mini_pending = 0; | |
3129 | ering->rx_jumbo_pending = 0; | |
3130 | ering->tx_pending = sky2->tx_pending; | |
3131 | } | |
3132 | ||
3133 | static int sky2_set_ringparam(struct net_device *dev, | |
3134 | struct ethtool_ringparam *ering) | |
3135 | { | |
3136 | struct sky2_port *sky2 = netdev_priv(dev); | |
3137 | int err = 0; | |
3138 | ||
3139 | if (ering->rx_pending > RX_MAX_PENDING || | |
3140 | ering->rx_pending < 8 || | |
3141 | ering->tx_pending < MAX_SKB_TX_LE || | |
3142 | ering->tx_pending > TX_RING_SIZE - 1) | |
3143 | return -EINVAL; | |
3144 | ||
3145 | if (netif_running(dev)) | |
3146 | sky2_down(dev); | |
3147 | ||
3148 | sky2->rx_pending = ering->rx_pending; | |
3149 | sky2->tx_pending = ering->tx_pending; | |
3150 | ||
1b537565 | 3151 | if (netif_running(dev)) { |
793b883e | 3152 | err = sky2_up(dev); |
1b537565 SH |
3153 | if (err) |
3154 | dev_close(dev); | |
6ed995bb SH |
3155 | else |
3156 | sky2_set_multicast(dev); | |
1b537565 | 3157 | } |
793b883e SH |
3158 | |
3159 | return err; | |
3160 | } | |
3161 | ||
793b883e SH |
3162 | static int sky2_get_regs_len(struct net_device *dev) |
3163 | { | |
6e4cbb34 | 3164 | return 0x4000; |
793b883e SH |
3165 | } |
3166 | ||
3167 | /* | |
3168 | * Returns copy of control register region | |
6e4cbb34 | 3169 | * Note: access to the RAM address register set will cause timeouts. |
793b883e SH |
3170 | */ |
3171 | static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
3172 | void *p) | |
3173 | { | |
3174 | const struct sky2_port *sky2 = netdev_priv(dev); | |
793b883e | 3175 | const void __iomem *io = sky2->hw->regs; |
793b883e | 3176 | |
6e4cbb34 | 3177 | BUG_ON(regs->len < B3_RI_WTO_R1); |
793b883e | 3178 | regs->version = 1; |
6e4cbb34 | 3179 | memset(p, 0, regs->len); |
793b883e | 3180 | |
6e4cbb34 SH |
3181 | memcpy_fromio(p, io, B3_RAM_ADDR); |
3182 | ||
3183 | memcpy_fromio(p + B3_RI_WTO_R1, | |
3184 | io + B3_RI_WTO_R1, | |
3185 | regs->len - B3_RI_WTO_R1); | |
793b883e | 3186 | } |
cd28ab6a | 3187 | |
7282d491 | 3188 | static const struct ethtool_ops sky2_ethtool_ops = { |
793b883e SH |
3189 | .get_settings = sky2_get_settings, |
3190 | .set_settings = sky2_set_settings, | |
3191 | .get_drvinfo = sky2_get_drvinfo, | |
3192 | .get_msglevel = sky2_get_msglevel, | |
3193 | .set_msglevel = sky2_set_msglevel, | |
9a7ae0a9 | 3194 | .nway_reset = sky2_nway_reset, |
793b883e SH |
3195 | .get_regs_len = sky2_get_regs_len, |
3196 | .get_regs = sky2_get_regs, | |
3197 | .get_link = ethtool_op_get_link, | |
3198 | .get_sg = ethtool_op_get_sg, | |
3199 | .set_sg = ethtool_op_set_sg, | |
3200 | .get_tx_csum = ethtool_op_get_tx_csum, | |
3201 | .set_tx_csum = ethtool_op_set_tx_csum, | |
3202 | .get_tso = ethtool_op_get_tso, | |
3203 | .set_tso = ethtool_op_set_tso, | |
3204 | .get_rx_csum = sky2_get_rx_csum, | |
3205 | .set_rx_csum = sky2_set_rx_csum, | |
3206 | .get_strings = sky2_get_strings, | |
fb17358f SH |
3207 | .get_coalesce = sky2_get_coalesce, |
3208 | .set_coalesce = sky2_set_coalesce, | |
793b883e SH |
3209 | .get_ringparam = sky2_get_ringparam, |
3210 | .set_ringparam = sky2_set_ringparam, | |
cd28ab6a SH |
3211 | .get_pauseparam = sky2_get_pauseparam, |
3212 | .set_pauseparam = sky2_set_pauseparam, | |
793b883e | 3213 | .phys_id = sky2_phys_id, |
cd28ab6a SH |
3214 | .get_stats_count = sky2_get_stats_count, |
3215 | .get_ethtool_stats = sky2_get_ethtool_stats, | |
2995bfb7 | 3216 | .get_perm_addr = ethtool_op_get_perm_addr, |
cd28ab6a SH |
3217 | }; |
3218 | ||
3219 | /* Initialize network device */ | |
3220 | static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw, | |
3221 | unsigned port, int highmem) | |
3222 | { | |
3223 | struct sky2_port *sky2; | |
3224 | struct net_device *dev = alloc_etherdev(sizeof(*sky2)); | |
3225 | ||
3226 | if (!dev) { | |
3227 | printk(KERN_ERR "sky2 etherdev alloc failed"); | |
3228 | return NULL; | |
3229 | } | |
3230 | ||
3231 | SET_MODULE_OWNER(dev); | |
3232 | SET_NETDEV_DEV(dev, &hw->pdev->dev); | |
ef743d33 | 3233 | dev->irq = hw->pdev->irq; |
cd28ab6a SH |
3234 | dev->open = sky2_up; |
3235 | dev->stop = sky2_down; | |
ef743d33 | 3236 | dev->do_ioctl = sky2_ioctl; |
cd28ab6a SH |
3237 | dev->hard_start_xmit = sky2_xmit_frame; |
3238 | dev->get_stats = sky2_get_stats; | |
3239 | dev->set_multicast_list = sky2_set_multicast; | |
3240 | dev->set_mac_address = sky2_set_mac_address; | |
3241 | dev->change_mtu = sky2_change_mtu; | |
3242 | SET_ETHTOOL_OPS(dev, &sky2_ethtool_ops); | |
3243 | dev->tx_timeout = sky2_tx_timeout; | |
3244 | dev->watchdog_timeo = TX_WATCHDOG; | |
3245 | if (port == 0) | |
3246 | dev->poll = sky2_poll; | |
3247 | dev->weight = NAPI_WEIGHT; | |
3248 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
0ca43235 SH |
3249 | /* Network console (only works on port 0) |
3250 | * because netpoll makes assumptions about NAPI | |
3251 | */ | |
3252 | if (port == 0) | |
3253 | dev->poll_controller = sky2_netpoll; | |
cd28ab6a | 3254 | #endif |
cd28ab6a SH |
3255 | |
3256 | sky2 = netdev_priv(dev); | |
3257 | sky2->netdev = dev; | |
3258 | sky2->hw = hw; | |
3259 | sky2->msg_enable = netif_msg_init(debug, default_msg); | |
3260 | ||
cd28ab6a SH |
3261 | /* Auto speed and flow control */ |
3262 | sky2->autoneg = AUTONEG_ENABLE; | |
16ad91e1 SH |
3263 | sky2->flow_mode = FC_BOTH; |
3264 | ||
cd28ab6a SH |
3265 | sky2->duplex = -1; |
3266 | sky2->speed = -1; | |
3267 | sky2->advertising = sky2_supported_modes(hw); | |
ee7abb04 | 3268 | sky2->rx_csum = 1; |
75d070c5 | 3269 | |
e07b1aa8 | 3270 | spin_lock_init(&sky2->phy_lock); |
793b883e | 3271 | sky2->tx_pending = TX_DEF_PENDING; |
290d4de5 | 3272 | sky2->rx_pending = RX_DEF_PENDING; |
cd28ab6a SH |
3273 | |
3274 | hw->dev[port] = dev; | |
3275 | ||
3276 | sky2->port = port; | |
3277 | ||
5a5b1ea0 SH |
3278 | if (hw->chip_id != CHIP_ID_YUKON_EC_U) |
3279 | dev->features |= NETIF_F_TSO; | |
cd28ab6a SH |
3280 | if (highmem) |
3281 | dev->features |= NETIF_F_HIGHDMA; | |
793b883e | 3282 | dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; |
cd28ab6a | 3283 | |
d1f13708 SH |
3284 | #ifdef SKY2_VLAN_TAG_USED |
3285 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
3286 | dev->vlan_rx_register = sky2_vlan_rx_register; | |
3287 | dev->vlan_rx_kill_vid = sky2_vlan_rx_kill_vid; | |
3288 | #endif | |
3289 | ||
cd28ab6a | 3290 | /* read the mac address */ |
793b883e | 3291 | memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN); |
2995bfb7 | 3292 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
cd28ab6a SH |
3293 | |
3294 | /* device is off until link detection */ | |
3295 | netif_carrier_off(dev); | |
3296 | netif_stop_queue(dev); | |
3297 | ||
3298 | return dev; | |
3299 | } | |
3300 | ||
28bd181a | 3301 | static void __devinit sky2_show_addr(struct net_device *dev) |
cd28ab6a SH |
3302 | { |
3303 | const struct sky2_port *sky2 = netdev_priv(dev); | |
3304 | ||
3305 | if (netif_msg_probe(sky2)) | |
3306 | printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n", | |
3307 | dev->name, | |
3308 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], | |
3309 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); | |
3310 | } | |
3311 | ||
fb2690a9 | 3312 | /* Handle software interrupt used during MSI test */ |
7d12e780 | 3313 | static irqreturn_t __devinit sky2_test_intr(int irq, void *dev_id) |
fb2690a9 SH |
3314 | { |
3315 | struct sky2_hw *hw = dev_id; | |
3316 | u32 status = sky2_read32(hw, B0_Y2_SP_ISRC2); | |
3317 | ||
3318 | if (status == 0) | |
3319 | return IRQ_NONE; | |
3320 | ||
3321 | if (status & Y2_IS_IRQ_SW) { | |
b0a20ded | 3322 | hw->msi = 1; |
fb2690a9 SH |
3323 | wake_up(&hw->msi_wait); |
3324 | sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ); | |
3325 | } | |
3326 | sky2_write32(hw, B0_Y2_SP_ICR, 2); | |
3327 | ||
3328 | return IRQ_HANDLED; | |
3329 | } | |
3330 | ||
3331 | /* Test interrupt path by forcing a a software IRQ */ | |
3332 | static int __devinit sky2_test_msi(struct sky2_hw *hw) | |
3333 | { | |
3334 | struct pci_dev *pdev = hw->pdev; | |
3335 | int err; | |
3336 | ||
bb507fe1 SH |
3337 | init_waitqueue_head (&hw->msi_wait); |
3338 | ||
fb2690a9 SH |
3339 | sky2_write32(hw, B0_IMSK, Y2_IS_IRQ_SW); |
3340 | ||
b0a20ded | 3341 | err = request_irq(pdev->irq, sky2_test_intr, 0, DRV_NAME, hw); |
fb2690a9 SH |
3342 | if (err) { |
3343 | printk(KERN_ERR PFX "%s: cannot assign irq %d\n", | |
3344 | pci_name(pdev), pdev->irq); | |
3345 | return err; | |
3346 | } | |
3347 | ||
fb2690a9 | 3348 | sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ); |
bb507fe1 | 3349 | sky2_read8(hw, B0_CTST); |
fb2690a9 | 3350 | |
b0a20ded | 3351 | wait_event_timeout(hw->msi_wait, hw->msi, HZ/10); |
fb2690a9 | 3352 | |
b0a20ded | 3353 | if (!hw->msi) { |
fb2690a9 | 3354 | /* MSI test failed, go back to INTx mode */ |
2bffc23a SH |
3355 | printk(KERN_INFO PFX "%s: No interrupt generated using MSI, " |
3356 | "switching to INTx mode.\n", | |
fb2690a9 SH |
3357 | pci_name(pdev)); |
3358 | ||
3359 | err = -EOPNOTSUPP; | |
3360 | sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ); | |
3361 | } | |
3362 | ||
3363 | sky2_write32(hw, B0_IMSK, 0); | |
2bffc23a | 3364 | sky2_read32(hw, B0_IMSK); |
fb2690a9 SH |
3365 | |
3366 | free_irq(pdev->irq, hw); | |
3367 | ||
3368 | return err; | |
3369 | } | |
3370 | ||
cd28ab6a SH |
3371 | static int __devinit sky2_probe(struct pci_dev *pdev, |
3372 | const struct pci_device_id *ent) | |
3373 | { | |
793b883e | 3374 | struct net_device *dev, *dev1 = NULL; |
cd28ab6a | 3375 | struct sky2_hw *hw; |
5afa0a9c | 3376 | int err, pm_cap, using_dac = 0; |
cd28ab6a | 3377 | |
793b883e SH |
3378 | err = pci_enable_device(pdev); |
3379 | if (err) { | |
cd28ab6a SH |
3380 | printk(KERN_ERR PFX "%s cannot enable PCI device\n", |
3381 | pci_name(pdev)); | |
3382 | goto err_out; | |
3383 | } | |
3384 | ||
793b883e SH |
3385 | err = pci_request_regions(pdev, DRV_NAME); |
3386 | if (err) { | |
cd28ab6a SH |
3387 | printk(KERN_ERR PFX "%s cannot obtain PCI resources\n", |
3388 | pci_name(pdev)); | |
793b883e | 3389 | goto err_out; |
cd28ab6a SH |
3390 | } |
3391 | ||
3392 | pci_set_master(pdev); | |
3393 | ||
5afa0a9c SH |
3394 | /* Find power-management capability. */ |
3395 | pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM); | |
3396 | if (pm_cap == 0) { | |
3397 | printk(KERN_ERR PFX "Cannot find PowerManagement capability, " | |
3398 | "aborting.\n"); | |
3399 | err = -EIO; | |
3400 | goto err_out_free_regions; | |
3401 | } | |
3402 | ||
d1f3d4dd SH |
3403 | if (sizeof(dma_addr_t) > sizeof(u32) && |
3404 | !(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) { | |
3405 | using_dac = 1; | |
3406 | err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); | |
3407 | if (err < 0) { | |
3408 | printk(KERN_ERR PFX "%s unable to obtain 64 bit DMA " | |
3409 | "for consistent allocations\n", pci_name(pdev)); | |
3410 | goto err_out_free_regions; | |
3411 | } | |
cd28ab6a | 3412 | |
d1f3d4dd | 3413 | } else { |
cd28ab6a SH |
3414 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
3415 | if (err) { | |
3416 | printk(KERN_ERR PFX "%s no usable DMA configuration\n", | |
3417 | pci_name(pdev)); | |
3418 | goto err_out_free_regions; | |
3419 | } | |
3420 | } | |
d1f3d4dd | 3421 | |
cd28ab6a | 3422 | err = -ENOMEM; |
6aad85d6 | 3423 | hw = kzalloc(sizeof(*hw), GFP_KERNEL); |
cd28ab6a SH |
3424 | if (!hw) { |
3425 | printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n", | |
3426 | pci_name(pdev)); | |
3427 | goto err_out_free_regions; | |
3428 | } | |
3429 | ||
cd28ab6a | 3430 | hw->pdev = pdev; |
cd28ab6a SH |
3431 | |
3432 | hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000); | |
3433 | if (!hw->regs) { | |
3434 | printk(KERN_ERR PFX "%s: cannot map device registers\n", | |
3435 | pci_name(pdev)); | |
3436 | goto err_out_free_hw; | |
3437 | } | |
5afa0a9c | 3438 | hw->pm_cap = pm_cap; |
cd28ab6a | 3439 | |
56a645cc | 3440 | #ifdef __BIG_ENDIAN |
f65b138c SH |
3441 | /* The sk98lin vendor driver uses hardware byte swapping but |
3442 | * this driver uses software swapping. | |
3443 | */ | |
56a645cc SH |
3444 | { |
3445 | u32 reg; | |
56a645cc | 3446 | reg = sky2_pci_read32(hw, PCI_DEV_REG2); |
f65b138c | 3447 | reg &= ~PCI_REV_DESC; |
56a645cc SH |
3448 | sky2_pci_write32(hw, PCI_DEV_REG2, reg); |
3449 | } | |
3450 | #endif | |
3451 | ||
08c06d8a SH |
3452 | /* ring for status responses */ |
3453 | hw->st_le = pci_alloc_consistent(hw->pdev, STATUS_LE_BYTES, | |
3454 | &hw->st_dma); | |
3455 | if (!hw->st_le) | |
3456 | goto err_out_iounmap; | |
3457 | ||
cd28ab6a SH |
3458 | err = sky2_reset(hw); |
3459 | if (err) | |
793b883e | 3460 | goto err_out_iounmap; |
cd28ab6a | 3461 | |
7c7459d1 GKH |
3462 | printk(KERN_INFO PFX "v%s addr 0x%llx irq %d Yukon-%s (0x%x) rev %d\n", |
3463 | DRV_VERSION, (unsigned long long)pci_resource_start(pdev, 0), | |
3464 | pdev->irq, yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL], | |
793b883e | 3465 | hw->chip_id, hw->chip_rev); |
cd28ab6a | 3466 | |
793b883e SH |
3467 | dev = sky2_init_netdev(hw, 0, using_dac); |
3468 | if (!dev) | |
cd28ab6a SH |
3469 | goto err_out_free_pci; |
3470 | ||
9fa1b1f3 SH |
3471 | if (!disable_msi && pci_enable_msi(pdev) == 0) { |
3472 | err = sky2_test_msi(hw); | |
3473 | if (err == -EOPNOTSUPP) | |
3474 | pci_disable_msi(pdev); | |
3475 | else if (err) | |
3476 | goto err_out_free_netdev; | |
3477 | } | |
3478 | ||
793b883e SH |
3479 | err = register_netdev(dev); |
3480 | if (err) { | |
cd28ab6a SH |
3481 | printk(KERN_ERR PFX "%s: cannot register net device\n", |
3482 | pci_name(pdev)); | |
3483 | goto err_out_free_netdev; | |
3484 | } | |
3485 | ||
b0a20ded SH |
3486 | err = request_irq(pdev->irq, sky2_intr, hw->msi ? 0 : IRQF_SHARED, |
3487 | dev->name, hw); | |
9fa1b1f3 SH |
3488 | if (err) { |
3489 | printk(KERN_ERR PFX "%s: cannot assign irq %d\n", | |
3490 | pci_name(pdev), pdev->irq); | |
3491 | goto err_out_unregister; | |
3492 | } | |
3493 | sky2_write32(hw, B0_IMSK, Y2_IS_BASE); | |
3494 | ||
cd28ab6a SH |
3495 | sky2_show_addr(dev); |
3496 | ||
3497 | if (hw->ports > 1 && (dev1 = sky2_init_netdev(hw, 1, using_dac))) { | |
3498 | if (register_netdev(dev1) == 0) | |
3499 | sky2_show_addr(dev1); | |
3500 | else { | |
3501 | /* Failure to register second port need not be fatal */ | |
793b883e SH |
3502 | printk(KERN_WARNING PFX |
3503 | "register of second port failed\n"); | |
cd28ab6a SH |
3504 | hw->dev[1] = NULL; |
3505 | free_netdev(dev1); | |
3506 | } | |
3507 | } | |
3508 | ||
01bd7564 | 3509 | setup_timer(&hw->idle_timer, sky2_idle, (unsigned long) hw); |
eb35cf60 | 3510 | sky2_idle_start(hw); |
d27ed387 | 3511 | |
793b883e SH |
3512 | pci_set_drvdata(pdev, hw); |
3513 | ||
cd28ab6a SH |
3514 | return 0; |
3515 | ||
793b883e | 3516 | err_out_unregister: |
b0a20ded SH |
3517 | if (hw->msi) |
3518 | pci_disable_msi(pdev); | |
793b883e | 3519 | unregister_netdev(dev); |
cd28ab6a SH |
3520 | err_out_free_netdev: |
3521 | free_netdev(dev); | |
cd28ab6a | 3522 | err_out_free_pci: |
793b883e | 3523 | sky2_write8(hw, B0_CTST, CS_RST_SET); |
cd28ab6a SH |
3524 | pci_free_consistent(hw->pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma); |
3525 | err_out_iounmap: | |
3526 | iounmap(hw->regs); | |
3527 | err_out_free_hw: | |
3528 | kfree(hw); | |
3529 | err_out_free_regions: | |
3530 | pci_release_regions(pdev); | |
cd28ab6a | 3531 | pci_disable_device(pdev); |
cd28ab6a SH |
3532 | err_out: |
3533 | return err; | |
3534 | } | |
3535 | ||
3536 | static void __devexit sky2_remove(struct pci_dev *pdev) | |
3537 | { | |
793b883e | 3538 | struct sky2_hw *hw = pci_get_drvdata(pdev); |
cd28ab6a SH |
3539 | struct net_device *dev0, *dev1; |
3540 | ||
793b883e | 3541 | if (!hw) |
cd28ab6a SH |
3542 | return; |
3543 | ||
d27ed387 SH |
3544 | del_timer_sync(&hw->idle_timer); |
3545 | ||
3546 | sky2_write32(hw, B0_IMSK, 0); | |
72cb8529 SH |
3547 | synchronize_irq(hw->pdev->irq); |
3548 | ||
cd28ab6a | 3549 | dev0 = hw->dev[0]; |
793b883e SH |
3550 | dev1 = hw->dev[1]; |
3551 | if (dev1) | |
3552 | unregister_netdev(dev1); | |
cd28ab6a SH |
3553 | unregister_netdev(dev0); |
3554 | ||
5afa0a9c | 3555 | sky2_set_power_state(hw, PCI_D3hot); |
cd28ab6a | 3556 | sky2_write16(hw, B0_Y2LED, LED_STAT_OFF); |
793b883e | 3557 | sky2_write8(hw, B0_CTST, CS_RST_SET); |
5afa0a9c | 3558 | sky2_read8(hw, B0_CTST); |
cd28ab6a SH |
3559 | |
3560 | free_irq(pdev->irq, hw); | |
b0a20ded SH |
3561 | if (hw->msi) |
3562 | pci_disable_msi(pdev); | |
793b883e | 3563 | pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma); |
cd28ab6a SH |
3564 | pci_release_regions(pdev); |
3565 | pci_disable_device(pdev); | |
793b883e | 3566 | |
cd28ab6a SH |
3567 | if (dev1) |
3568 | free_netdev(dev1); | |
3569 | free_netdev(dev0); | |
3570 | iounmap(hw->regs); | |
3571 | kfree(hw); | |
5afa0a9c | 3572 | |
cd28ab6a SH |
3573 | pci_set_drvdata(pdev, NULL); |
3574 | } | |
3575 | ||
3576 | #ifdef CONFIG_PM | |
3577 | static int sky2_suspend(struct pci_dev *pdev, pm_message_t state) | |
3578 | { | |
793b883e | 3579 | struct sky2_hw *hw = pci_get_drvdata(pdev); |
5afa0a9c | 3580 | int i; |
2ccc99b7 SH |
3581 | pci_power_t pstate = pci_choose_state(pdev, state); |
3582 | ||
3583 | if (!(pstate == PCI_D3hot || pstate == PCI_D3cold)) | |
3584 | return -EINVAL; | |
cd28ab6a | 3585 | |
eb35cf60 | 3586 | del_timer_sync(&hw->idle_timer); |
6a5706b9 | 3587 | netif_poll_disable(hw->dev[0]); |
eb35cf60 | 3588 | |
f05267e7 | 3589 | for (i = 0; i < hw->ports; i++) { |
cd28ab6a SH |
3590 | struct net_device *dev = hw->dev[i]; |
3591 | ||
6a5706b9 | 3592 | if (netif_running(dev)) { |
5afa0a9c | 3593 | sky2_down(dev); |
cd28ab6a | 3594 | netif_device_detach(dev); |
cd28ab6a SH |
3595 | } |
3596 | } | |
3597 | ||
8ab8fca2 | 3598 | sky2_write32(hw, B0_IMSK, 0); |
d374c1c1 | 3599 | pci_save_state(pdev); |
2ccc99b7 SH |
3600 | sky2_set_power_state(hw, pstate); |
3601 | return 0; | |
cd28ab6a SH |
3602 | } |
3603 | ||
3604 | static int sky2_resume(struct pci_dev *pdev) | |
3605 | { | |
793b883e | 3606 | struct sky2_hw *hw = pci_get_drvdata(pdev); |
08c06d8a | 3607 | int i, err; |
cd28ab6a | 3608 | |
cd28ab6a SH |
3609 | pci_restore_state(pdev); |
3610 | pci_enable_wake(pdev, PCI_D0, 0); | |
2ccc99b7 | 3611 | sky2_set_power_state(hw, PCI_D0); |
cd28ab6a | 3612 | |
08c06d8a SH |
3613 | err = sky2_reset(hw); |
3614 | if (err) | |
3615 | goto out; | |
cd28ab6a | 3616 | |
8ab8fca2 SH |
3617 | sky2_write32(hw, B0_IMSK, Y2_IS_BASE); |
3618 | ||
f05267e7 | 3619 | for (i = 0; i < hw->ports; i++) { |
cd28ab6a | 3620 | struct net_device *dev = hw->dev[i]; |
6a5706b9 | 3621 | if (netif_running(dev)) { |
08c06d8a | 3622 | netif_device_attach(dev); |
88d11360 | 3623 | |
08c06d8a SH |
3624 | err = sky2_up(dev); |
3625 | if (err) { | |
3626 | printk(KERN_ERR PFX "%s: could not up: %d\n", | |
3627 | dev->name, err); | |
3628 | dev_close(dev); | |
eb35cf60 | 3629 | goto out; |
5afa0a9c | 3630 | } |
cd28ab6a SH |
3631 | } |
3632 | } | |
eb35cf60 | 3633 | |
6a5706b9 | 3634 | netif_poll_enable(hw->dev[0]); |
eb35cf60 | 3635 | sky2_idle_start(hw); |
08c06d8a SH |
3636 | out: |
3637 | return err; | |
cd28ab6a SH |
3638 | } |
3639 | #endif | |
3640 | ||
3641 | static struct pci_driver sky2_driver = { | |
793b883e SH |
3642 | .name = DRV_NAME, |
3643 | .id_table = sky2_id_table, | |
3644 | .probe = sky2_probe, | |
3645 | .remove = __devexit_p(sky2_remove), | |
cd28ab6a | 3646 | #ifdef CONFIG_PM |
793b883e SH |
3647 | .suspend = sky2_suspend, |
3648 | .resume = sky2_resume, | |
cd28ab6a SH |
3649 | #endif |
3650 | }; | |
3651 | ||
3652 | static int __init sky2_init_module(void) | |
3653 | { | |
50241c4c | 3654 | return pci_register_driver(&sky2_driver); |
cd28ab6a SH |
3655 | } |
3656 | ||
3657 | static void __exit sky2_cleanup_module(void) | |
3658 | { | |
3659 | pci_unregister_driver(&sky2_driver); | |
3660 | } | |
3661 | ||
3662 | module_init(sky2_init_module); | |
3663 | module_exit(sky2_cleanup_module); | |
3664 | ||
3665 | MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver"); | |
3666 | MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>"); | |
3667 | MODULE_LICENSE("GPL"); | |
5f4f9dc1 | 3668 | MODULE_VERSION(DRV_VERSION); |