Commit | Line | Data |
---|---|---|
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> | |
c9bdd4b5 | 35 | #include <net/ip.h> |
cd28ab6a SH |
36 | #include <linux/tcp.h> |
37 | #include <linux/in.h> | |
38 | #include <linux/delay.h> | |
91c86df5 | 39 | #include <linux/workqueue.h> |
d1f13708 | 40 | #include <linux/if_vlan.h> |
d70cd51a | 41 | #include <linux/prefetch.h> |
3cf26753 | 42 | #include <linux/debugfs.h> |
ef743d33 | 43 | #include <linux/mii.h> |
cd28ab6a SH |
44 | |
45 | #include <asm/irq.h> | |
46 | ||
d1f13708 | 47 | #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) |
48 | #define SKY2_VLAN_TAG_USED 1 | |
49 | #endif | |
50 | ||
cd28ab6a SH |
51 | #include "sky2.h" |
52 | ||
53 | #define DRV_NAME "sky2" | |
0640b8dc | 54 | #define DRV_VERSION "1.16" |
cd28ab6a SH |
55 | #define PFX DRV_NAME " " |
56 | ||
57 | /* | |
58 | * The Yukon II chipset takes 64 bit command blocks (called list elements) | |
59 | * that are organized into three (receive, transmit, status) different rings | |
14d0263f | 60 | * similar to Tigon3. |
cd28ab6a SH |
61 | */ |
62 | ||
14d0263f | 63 | #define RX_LE_SIZE 1024 |
cd28ab6a | 64 | #define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le)) |
14d0263f | 65 | #define RX_MAX_PENDING (RX_LE_SIZE/6 - 2) |
13210ce5 | 66 | #define RX_DEF_PENDING RX_MAX_PENDING |
82788c7a | 67 | #define RX_SKB_ALIGN 8 |
793b883e SH |
68 | |
69 | #define TX_RING_SIZE 512 | |
70 | #define TX_DEF_PENDING (TX_RING_SIZE - 1) | |
71 | #define TX_MIN_PENDING 64 | |
b19666d9 | 72 | #define MAX_SKB_TX_LE (4 + (sizeof(dma_addr_t)/sizeof(u32))*MAX_SKB_FRAGS) |
cd28ab6a | 73 | |
793b883e | 74 | #define STATUS_RING_SIZE 2048 /* 2 ports * (TX + 2*RX) */ |
cd28ab6a | 75 | #define STATUS_LE_BYTES (STATUS_RING_SIZE*sizeof(struct sky2_status_le)) |
cd28ab6a SH |
76 | #define TX_WATCHDOG (5 * HZ) |
77 | #define NAPI_WEIGHT 64 | |
78 | #define PHY_RETRIES 1000 | |
79 | ||
f4331a6d SH |
80 | #define SKY2_EEPROM_MAGIC 0x9955aabb |
81 | ||
82 | ||
cb5d9547 SH |
83 | #define RING_NEXT(x,s) (((x)+1) & ((s)-1)) |
84 | ||
cd28ab6a | 85 | static const u32 default_msg = |
793b883e SH |
86 | NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK |
87 | | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR | |
3be92a70 | 88 | | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN; |
cd28ab6a | 89 | |
793b883e | 90 | static int debug = -1; /* defaults above */ |
cd28ab6a SH |
91 | module_param(debug, int, 0); |
92 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
93 | ||
14d0263f | 94 | static int copybreak __read_mostly = 128; |
bdb5c58e SH |
95 | module_param(copybreak, int, 0); |
96 | MODULE_PARM_DESC(copybreak, "Receive copy threshold"); | |
97 | ||
fb2690a9 SH |
98 | static int disable_msi = 0; |
99 | module_param(disable_msi, int, 0); | |
100 | MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)"); | |
101 | ||
c59697e0 | 102 | static int idle_timeout = 100; |
01bd7564 | 103 | module_param(idle_timeout, int, 0); |
e561a83b | 104 | MODULE_PARM_DESC(idle_timeout, "Watchdog timer for lost interrupts (ms)"); |
01bd7564 | 105 | |
cd28ab6a | 106 | static const struct pci_device_id sky2_id_table[] = { |
e5b74c7d SH |
107 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, /* SK-9Sxx */ |
108 | { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */ | |
2d2a3871 | 109 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) }, /* DGE-560T */ |
2f4a66ad | 110 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4001) }, /* DGE-550SX */ |
508f89e7 | 111 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B02) }, /* DGE-560SX */ |
f1a0b6f5 | 112 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B03) }, /* DGE-550T */ |
e5b74c7d SH |
113 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4340) }, /* 88E8021 */ |
114 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4341) }, /* 88E8022 */ | |
115 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4342) }, /* 88E8061 */ | |
116 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4343) }, /* 88E8062 */ | |
117 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4344) }, /* 88E8021 */ | |
118 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4345) }, /* 88E8022 */ | |
119 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4346) }, /* 88E8061 */ | |
120 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4347) }, /* 88E8062 */ | |
121 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4350) }, /* 88E8035 */ | |
122 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) }, /* 88E8036 */ | |
123 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) }, /* 88E8038 */ | |
124 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4353) }, /* 88E8039 */ | |
125 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4356) }, /* 88EC033 */ | |
126 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) }, /* 88E8052 */ | |
127 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) }, /* 88E8050 */ | |
128 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) }, /* 88E8053 */ | |
129 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) }, /* 88E8055 */ | |
130 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4364) }, /* 88E8056 */ | |
131 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4366) }, /* 88EC036 */ | |
132 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4367) }, /* 88EC032 */ | |
133 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) }, /* 88EC034 */ | |
f1a0b6f5 SH |
134 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4369) }, /* 88EC042 */ |
135 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436A) }, /* 88E8058 */ | |
69161611 | 136 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436B) }, /* 88E8071 */ |
cd28ab6a SH |
137 | { 0 } |
138 | }; | |
793b883e | 139 | |
cd28ab6a SH |
140 | MODULE_DEVICE_TABLE(pci, sky2_id_table); |
141 | ||
142 | /* Avoid conditionals by using array */ | |
143 | static const unsigned txqaddr[] = { Q_XA1, Q_XA2 }; | |
144 | static const unsigned rxqaddr[] = { Q_R1, Q_R2 }; | |
f4ea431b | 145 | static const u32 portirq_msk[] = { Y2_IS_PORT_1, Y2_IS_PORT_2 }; |
cd28ab6a | 146 | |
92f965e8 SH |
147 | /* This driver supports yukon2 chipset only */ |
148 | static const char *yukon2_name[] = { | |
149 | "XL", /* 0xb3 */ | |
150 | "EC Ultra", /* 0xb4 */ | |
93745494 | 151 | "Extreme", /* 0xb5 */ |
92f965e8 SH |
152 | "EC", /* 0xb6 */ |
153 | "FE", /* 0xb7 */ | |
793b883e SH |
154 | }; |
155 | ||
793b883e | 156 | /* Access to external PHY */ |
ef743d33 | 157 | static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val) |
cd28ab6a SH |
158 | { |
159 | int i; | |
160 | ||
161 | gma_write16(hw, port, GM_SMI_DATA, val); | |
162 | gma_write16(hw, port, GM_SMI_CTRL, | |
163 | GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) | GM_SMI_CT_REG_AD(reg)); | |
164 | ||
165 | for (i = 0; i < PHY_RETRIES; i++) { | |
cd28ab6a | 166 | if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY)) |
ef743d33 | 167 | return 0; |
793b883e | 168 | udelay(1); |
cd28ab6a | 169 | } |
ef743d33 | 170 | |
793b883e | 171 | printk(KERN_WARNING PFX "%s: phy write timeout\n", hw->dev[port]->name); |
ef743d33 | 172 | return -ETIMEDOUT; |
cd28ab6a SH |
173 | } |
174 | ||
ef743d33 | 175 | static int __gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg, u16 *val) |
cd28ab6a SH |
176 | { |
177 | int i; | |
178 | ||
793b883e | 179 | gma_write16(hw, port, GM_SMI_CTRL, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) |
cd28ab6a SH |
180 | | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD); |
181 | ||
182 | for (i = 0; i < PHY_RETRIES; i++) { | |
ef743d33 | 183 | if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) { |
184 | *val = gma_read16(hw, port, GM_SMI_DATA); | |
185 | return 0; | |
186 | } | |
187 | ||
793b883e | 188 | udelay(1); |
cd28ab6a SH |
189 | } |
190 | ||
ef743d33 | 191 | return -ETIMEDOUT; |
192 | } | |
193 | ||
194 | static u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg) | |
195 | { | |
196 | u16 v; | |
197 | ||
198 | if (__gm_phy_read(hw, port, reg, &v) != 0) | |
199 | printk(KERN_WARNING PFX "%s: phy read timeout\n", hw->dev[port]->name); | |
200 | return v; | |
cd28ab6a SH |
201 | } |
202 | ||
5afa0a9c | 203 | |
ae306cca SH |
204 | static void sky2_power_on(struct sky2_hw *hw) |
205 | { | |
206 | /* switch power to VCC (WA for VAUX problem) */ | |
207 | sky2_write8(hw, B0_POWER_CTRL, | |
208 | PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON); | |
5afa0a9c | 209 | |
ae306cca SH |
210 | /* disable Core Clock Division, */ |
211 | sky2_write32(hw, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS); | |
d3bcfbeb | 212 | |
ae306cca SH |
213 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) |
214 | /* enable bits are inverted */ | |
215 | sky2_write8(hw, B2_Y2_CLK_GATE, | |
216 | Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS | | |
217 | Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS | | |
218 | Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS); | |
219 | else | |
220 | sky2_write8(hw, B2_Y2_CLK_GATE, 0); | |
977bdf06 | 221 | |
93745494 | 222 | if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) { |
fc99fe06 | 223 | u32 reg; |
5afa0a9c | 224 | |
fc99fe06 SH |
225 | reg = sky2_pci_read32(hw, PCI_DEV_REG4); |
226 | /* set all bits to 0 except bits 15..12 and 8 */ | |
227 | reg &= P_ASPM_CONTROL_MSK; | |
228 | sky2_pci_write32(hw, PCI_DEV_REG4, reg); | |
229 | ||
230 | reg = sky2_pci_read32(hw, PCI_DEV_REG5); | |
231 | /* set all bits to 0 except bits 28 & 27 */ | |
232 | reg &= P_CTL_TIM_VMAIN_AV_MSK; | |
233 | sky2_pci_write32(hw, PCI_DEV_REG5, reg); | |
234 | ||
235 | sky2_pci_write32(hw, PCI_CFG_REG_1, 0); | |
8f70920f SH |
236 | |
237 | /* Enable workaround for dev 4.107 on Yukon-Ultra & Extreme */ | |
238 | reg = sky2_read32(hw, B2_GP_IO); | |
239 | reg |= GLB_GPIO_STAT_RACE_DIS; | |
240 | sky2_write32(hw, B2_GP_IO, reg); | |
5afa0a9c | 241 | } |
ae306cca | 242 | } |
5afa0a9c | 243 | |
ae306cca SH |
244 | static void sky2_power_aux(struct sky2_hw *hw) |
245 | { | |
246 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) | |
247 | sky2_write8(hw, B2_Y2_CLK_GATE, 0); | |
248 | else | |
249 | /* enable bits are inverted */ | |
250 | sky2_write8(hw, B2_Y2_CLK_GATE, | |
251 | Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS | | |
252 | Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS | | |
253 | Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS); | |
254 | ||
255 | /* switch power to VAUX */ | |
256 | if (sky2_read16(hw, B0_CTST) & Y2_VAUX_AVAIL) | |
257 | sky2_write8(hw, B0_POWER_CTRL, | |
258 | (PC_VAUX_ENA | PC_VCC_ENA | | |
259 | PC_VAUX_ON | PC_VCC_OFF)); | |
5afa0a9c | 260 | } |
261 | ||
d3bcfbeb | 262 | static void sky2_gmac_reset(struct sky2_hw *hw, unsigned port) |
cd28ab6a SH |
263 | { |
264 | u16 reg; | |
265 | ||
266 | /* disable all GMAC IRQ's */ | |
267 | sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); | |
268 | /* disable PHY IRQs */ | |
269 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0); | |
793b883e | 270 | |
cd28ab6a SH |
271 | gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */ |
272 | gma_write16(hw, port, GM_MC_ADDR_H2, 0); | |
273 | gma_write16(hw, port, GM_MC_ADDR_H3, 0); | |
274 | gma_write16(hw, port, GM_MC_ADDR_H4, 0); | |
275 | ||
276 | reg = gma_read16(hw, port, GM_RX_CTRL); | |
277 | reg |= GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA; | |
278 | gma_write16(hw, port, GM_RX_CTRL, reg); | |
279 | } | |
280 | ||
16ad91e1 SH |
281 | /* flow control to advertise bits */ |
282 | static const u16 copper_fc_adv[] = { | |
283 | [FC_NONE] = 0, | |
284 | [FC_TX] = PHY_M_AN_ASP, | |
285 | [FC_RX] = PHY_M_AN_PC, | |
286 | [FC_BOTH] = PHY_M_AN_PC | PHY_M_AN_ASP, | |
287 | }; | |
288 | ||
289 | /* flow control to advertise bits when using 1000BaseX */ | |
290 | static const u16 fiber_fc_adv[] = { | |
291 | [FC_BOTH] = PHY_M_P_BOTH_MD_X, | |
292 | [FC_TX] = PHY_M_P_ASYM_MD_X, | |
293 | [FC_RX] = PHY_M_P_SYM_MD_X, | |
294 | [FC_NONE] = PHY_M_P_NO_PAUSE_X, | |
295 | }; | |
296 | ||
297 | /* flow control to GMA disable bits */ | |
298 | static const u16 gm_fc_disable[] = { | |
299 | [FC_NONE] = GM_GPCR_FC_RX_DIS | GM_GPCR_FC_TX_DIS, | |
300 | [FC_TX] = GM_GPCR_FC_RX_DIS, | |
301 | [FC_RX] = GM_GPCR_FC_TX_DIS, | |
302 | [FC_BOTH] = 0, | |
303 | }; | |
304 | ||
305 | ||
cd28ab6a SH |
306 | static void sky2_phy_init(struct sky2_hw *hw, unsigned port) |
307 | { | |
308 | struct sky2_port *sky2 = netdev_priv(hw->dev[port]); | |
2eaba1a2 | 309 | u16 ctrl, ct1000, adv, pg, ledctrl, ledover, reg; |
cd28ab6a | 310 | |
93745494 SH |
311 | if (sky2->autoneg == AUTONEG_ENABLE |
312 | && !(hw->chip_id == CHIP_ID_YUKON_XL | |
313 | || hw->chip_id == CHIP_ID_YUKON_EC_U | |
314 | || hw->chip_id == CHIP_ID_YUKON_EX)) { | |
cd28ab6a SH |
315 | u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL); |
316 | ||
317 | ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK | | |
793b883e | 318 | PHY_M_EC_MAC_S_MSK); |
cd28ab6a SH |
319 | ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ); |
320 | ||
53419c68 | 321 | /* on PHY 88E1040 Rev.D0 (and newer) downshift control changed */ |
cd28ab6a | 322 | if (hw->chip_id == CHIP_ID_YUKON_EC) |
53419c68 | 323 | /* set downshift counter to 3x and enable downshift */ |
cd28ab6a SH |
324 | ectrl |= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA; |
325 | else | |
53419c68 SH |
326 | /* set master & slave downshift counter to 1x */ |
327 | ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1); | |
cd28ab6a SH |
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 | ||
53419c68 | 344 | /* downshift on PHY 88E1112 and 88E1149 is changed */ |
93745494 SH |
345 | if (sky2->autoneg == AUTONEG_ENABLE |
346 | && (hw->chip_id == CHIP_ID_YUKON_XL | |
347 | || hw->chip_id == CHIP_ID_YUKON_EC_U | |
348 | || hw->chip_id == CHIP_ID_YUKON_EX)) { | |
53419c68 | 349 | /* set downshift counter to 3x and enable downshift */ |
cd28ab6a SH |
350 | ctrl &= ~PHY_M_PC_DSC_MSK; |
351 | ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA; | |
352 | } | |
353 | } | |
cd28ab6a SH |
354 | } else { |
355 | /* workaround for deviation #4.88 (CRC errors) */ | |
356 | /* disable Automatic Crossover */ | |
357 | ||
358 | ctrl &= ~PHY_M_PC_MDIX_MSK; | |
b89165f2 | 359 | } |
cd28ab6a | 360 | |
b89165f2 SH |
361 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); |
362 | ||
363 | /* special setup for PHY 88E1112 Fiber */ | |
364 | if (hw->chip_id == CHIP_ID_YUKON_XL && !sky2_is_copper(hw)) { | |
365 | pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
cd28ab6a | 366 | |
b89165f2 SH |
367 | /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */ |
368 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2); | |
369 | ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
370 | ctrl &= ~PHY_M_MAC_MD_MSK; | |
371 | ctrl |= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX); | |
372 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); | |
373 | ||
374 | if (hw->pmd_type == 'P') { | |
cd28ab6a SH |
375 | /* select page 1 to access Fiber registers */ |
376 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 1); | |
b89165f2 SH |
377 | |
378 | /* for SFP-module set SIGDET polarity to low */ | |
379 | ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
380 | ctrl |= PHY_M_FIB_SIGD_POL; | |
34dd962b | 381 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); |
cd28ab6a | 382 | } |
b89165f2 SH |
383 | |
384 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
cd28ab6a SH |
385 | } |
386 | ||
7800fddc | 387 | ctrl = PHY_CT_RESET; |
cd28ab6a SH |
388 | ct1000 = 0; |
389 | adv = PHY_AN_CSMA; | |
2eaba1a2 | 390 | reg = 0; |
cd28ab6a SH |
391 | |
392 | if (sky2->autoneg == AUTONEG_ENABLE) { | |
b89165f2 | 393 | if (sky2_is_copper(hw)) { |
cd28ab6a SH |
394 | if (sky2->advertising & ADVERTISED_1000baseT_Full) |
395 | ct1000 |= PHY_M_1000C_AFD; | |
396 | if (sky2->advertising & ADVERTISED_1000baseT_Half) | |
397 | ct1000 |= PHY_M_1000C_AHD; | |
398 | if (sky2->advertising & ADVERTISED_100baseT_Full) | |
399 | adv |= PHY_M_AN_100_FD; | |
400 | if (sky2->advertising & ADVERTISED_100baseT_Half) | |
401 | adv |= PHY_M_AN_100_HD; | |
402 | if (sky2->advertising & ADVERTISED_10baseT_Full) | |
403 | adv |= PHY_M_AN_10_FD; | |
404 | if (sky2->advertising & ADVERTISED_10baseT_Half) | |
405 | adv |= PHY_M_AN_10_HD; | |
709c6e7b | 406 | |
16ad91e1 | 407 | adv |= copper_fc_adv[sky2->flow_mode]; |
b89165f2 SH |
408 | } else { /* special defines for FIBER (88E1040S only) */ |
409 | if (sky2->advertising & ADVERTISED_1000baseT_Full) | |
410 | adv |= PHY_M_AN_1000X_AFD; | |
411 | if (sky2->advertising & ADVERTISED_1000baseT_Half) | |
412 | adv |= PHY_M_AN_1000X_AHD; | |
cd28ab6a | 413 | |
16ad91e1 | 414 | adv |= fiber_fc_adv[sky2->flow_mode]; |
709c6e7b | 415 | } |
cd28ab6a SH |
416 | |
417 | /* Restart Auto-negotiation */ | |
418 | ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG; | |
419 | } else { | |
420 | /* forced speed/duplex settings */ | |
421 | ct1000 = PHY_M_1000C_MSE; | |
422 | ||
2eaba1a2 SH |
423 | /* Disable auto update for duplex flow control and speed */ |
424 | reg |= GM_GPCR_AU_ALL_DIS; | |
cd28ab6a SH |
425 | |
426 | switch (sky2->speed) { | |
427 | case SPEED_1000: | |
428 | ctrl |= PHY_CT_SP1000; | |
2eaba1a2 | 429 | reg |= GM_GPCR_SPEED_1000; |
cd28ab6a SH |
430 | break; |
431 | case SPEED_100: | |
432 | ctrl |= PHY_CT_SP100; | |
2eaba1a2 | 433 | reg |= GM_GPCR_SPEED_100; |
cd28ab6a SH |
434 | break; |
435 | } | |
436 | ||
2eaba1a2 SH |
437 | if (sky2->duplex == DUPLEX_FULL) { |
438 | reg |= GM_GPCR_DUP_FULL; | |
439 | ctrl |= PHY_CT_DUP_MD; | |
16ad91e1 SH |
440 | } else if (sky2->speed < SPEED_1000) |
441 | sky2->flow_mode = FC_NONE; | |
2eaba1a2 | 442 | |
2eaba1a2 | 443 | |
16ad91e1 | 444 | reg |= gm_fc_disable[sky2->flow_mode]; |
2eaba1a2 SH |
445 | |
446 | /* Forward pause packets to GMAC? */ | |
16ad91e1 | 447 | if (sky2->flow_mode & FC_RX) |
2eaba1a2 SH |
448 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); |
449 | else | |
450 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); | |
cd28ab6a SH |
451 | } |
452 | ||
2eaba1a2 SH |
453 | gma_write16(hw, port, GM_GP_CTRL, reg); |
454 | ||
cd28ab6a SH |
455 | if (hw->chip_id != CHIP_ID_YUKON_FE) |
456 | gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000); | |
457 | ||
458 | gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv); | |
459 | gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); | |
460 | ||
461 | /* Setup Phy LED's */ | |
462 | ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS); | |
463 | ledover = 0; | |
464 | ||
465 | switch (hw->chip_id) { | |
466 | case CHIP_ID_YUKON_FE: | |
467 | /* on 88E3082 these bits are at 11..9 (shifted left) */ | |
468 | ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1; | |
469 | ||
470 | ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR); | |
471 | ||
472 | /* delete ACT LED control bits */ | |
473 | ctrl &= ~PHY_M_FELP_LED1_MSK; | |
474 | /* change ACT LED control to blink mode */ | |
475 | ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL); | |
476 | gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl); | |
477 | break; | |
478 | ||
479 | case CHIP_ID_YUKON_XL: | |
793b883e | 480 | pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); |
cd28ab6a SH |
481 | |
482 | /* select page 3 to access LED control register */ | |
483 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
484 | ||
485 | /* set LED Function Control register */ | |
ed6d32c7 SH |
486 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, |
487 | (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */ | |
488 | PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */ | |
489 | PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */ | |
490 | PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */ | |
cd28ab6a SH |
491 | |
492 | /* set Polarity Control register */ | |
493 | gm_phy_write(hw, port, PHY_MARV_PHY_STAT, | |
793b883e SH |
494 | (PHY_M_POLC_LS1_P_MIX(4) | |
495 | PHY_M_POLC_IS0_P_MIX(4) | | |
496 | PHY_M_POLC_LOS_CTRL(2) | | |
497 | PHY_M_POLC_INIT_CTRL(2) | | |
498 | PHY_M_POLC_STA1_CTRL(2) | | |
499 | PHY_M_POLC_STA0_CTRL(2))); | |
cd28ab6a SH |
500 | |
501 | /* restore page register */ | |
793b883e | 502 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); |
cd28ab6a | 503 | break; |
93745494 | 504 | |
ed6d32c7 | 505 | case CHIP_ID_YUKON_EC_U: |
93745494 | 506 | case CHIP_ID_YUKON_EX: |
ed6d32c7 SH |
507 | pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); |
508 | ||
509 | /* select page 3 to access LED control register */ | |
510 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
511 | ||
512 | /* set LED Function Control register */ | |
513 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, | |
514 | (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */ | |
515 | PHY_M_LEDC_INIT_CTRL(8) | /* 10 Mbps */ | |
516 | PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */ | |
517 | PHY_M_LEDC_STA0_CTRL(7)));/* 1000 Mbps */ | |
518 | ||
519 | /* set Blink Rate in LED Timer Control Register */ | |
520 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, | |
521 | ledctrl | PHY_M_LED_BLINK_RT(BLINK_84MS)); | |
522 | /* restore page register */ | |
523 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
524 | break; | |
cd28ab6a SH |
525 | |
526 | default: | |
527 | /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */ | |
528 | ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL; | |
529 | /* turn off the Rx LED (LED_RX) */ | |
0efdf262 | 530 | ledover &= ~PHY_M_LED_MO_RX; |
cd28ab6a SH |
531 | } |
532 | ||
9467a8fc SH |
533 | if (hw->chip_id == CHIP_ID_YUKON_EC_U && |
534 | hw->chip_rev == CHIP_REV_YU_EC_U_A1) { | |
977bdf06 | 535 | /* apply fixes in PHY AFE */ |
ed6d32c7 SH |
536 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 255); |
537 | ||
977bdf06 | 538 | /* increase differential signal amplitude in 10BASE-T */ |
ed6d32c7 SH |
539 | gm_phy_write(hw, port, 0x18, 0xaa99); |
540 | gm_phy_write(hw, port, 0x17, 0x2011); | |
cd28ab6a | 541 | |
977bdf06 | 542 | /* fix for IEEE A/B Symmetry failure in 1000BASE-T */ |
ed6d32c7 SH |
543 | gm_phy_write(hw, port, 0x18, 0xa204); |
544 | gm_phy_write(hw, port, 0x17, 0x2002); | |
977bdf06 SH |
545 | |
546 | /* set page register to 0 */ | |
9467a8fc | 547 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0); |
93745494 | 548 | } else if (hw->chip_id != CHIP_ID_YUKON_EX) { |
977bdf06 | 549 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl); |
cd28ab6a | 550 | |
977bdf06 SH |
551 | if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) { |
552 | /* turn on 100 Mbps LED (LED_LINK100) */ | |
0efdf262 | 553 | ledover |= PHY_M_LED_MO_100; |
977bdf06 | 554 | } |
cd28ab6a | 555 | |
977bdf06 SH |
556 | if (ledover) |
557 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover); | |
558 | ||
559 | } | |
2eaba1a2 | 560 | |
d571b694 | 561 | /* Enable phy interrupt on auto-negotiation complete (or link up) */ |
cd28ab6a SH |
562 | if (sky2->autoneg == AUTONEG_ENABLE) |
563 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL); | |
564 | else | |
565 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK); | |
566 | } | |
567 | ||
d3bcfbeb | 568 | static void sky2_phy_power(struct sky2_hw *hw, unsigned port, int onoff) |
569 | { | |
570 | u32 reg1; | |
571 | static const u32 phy_power[] | |
572 | = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD }; | |
573 | ||
574 | /* looks like this XL is back asswards .. */ | |
575 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) | |
576 | onoff = !onoff; | |
577 | ||
aed2cec4 | 578 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); |
d3bcfbeb | 579 | reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); |
d3bcfbeb | 580 | if (onoff) |
581 | /* Turn off phy power saving */ | |
582 | reg1 &= ~phy_power[port]; | |
583 | else | |
584 | reg1 |= phy_power[port]; | |
585 | ||
586 | sky2_pci_write32(hw, PCI_DEV_REG1, reg1); | |
98232f85 | 587 | sky2_pci_read32(hw, PCI_DEV_REG1); |
aed2cec4 | 588 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
d3bcfbeb | 589 | udelay(100); |
590 | } | |
591 | ||
1b537565 SH |
592 | /* Force a renegotiation */ |
593 | static void sky2_phy_reinit(struct sky2_port *sky2) | |
594 | { | |
e07b1aa8 | 595 | spin_lock_bh(&sky2->phy_lock); |
1b537565 | 596 | sky2_phy_init(sky2->hw, sky2->port); |
e07b1aa8 | 597 | spin_unlock_bh(&sky2->phy_lock); |
1b537565 SH |
598 | } |
599 | ||
e3173832 SH |
600 | /* Put device in state to listen for Wake On Lan */ |
601 | static void sky2_wol_init(struct sky2_port *sky2) | |
602 | { | |
603 | struct sky2_hw *hw = sky2->hw; | |
604 | unsigned port = sky2->port; | |
605 | enum flow_control save_mode; | |
606 | u16 ctrl; | |
607 | u32 reg1; | |
608 | ||
609 | /* Bring hardware out of reset */ | |
610 | sky2_write16(hw, B0_CTST, CS_RST_CLR); | |
611 | sky2_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR); | |
612 | ||
613 | sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR); | |
614 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); | |
615 | ||
616 | /* Force to 10/100 | |
617 | * sky2_reset will re-enable on resume | |
618 | */ | |
619 | save_mode = sky2->flow_mode; | |
620 | ctrl = sky2->advertising; | |
621 | ||
622 | sky2->advertising &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full); | |
623 | sky2->flow_mode = FC_NONE; | |
624 | sky2_phy_power(hw, port, 1); | |
625 | sky2_phy_reinit(sky2); | |
626 | ||
627 | sky2->flow_mode = save_mode; | |
628 | sky2->advertising = ctrl; | |
629 | ||
630 | /* Set GMAC to no flow control and auto update for speed/duplex */ | |
631 | gma_write16(hw, port, GM_GP_CTRL, | |
632 | GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA| | |
633 | GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS); | |
634 | ||
635 | /* Set WOL address */ | |
636 | memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR), | |
637 | sky2->netdev->dev_addr, ETH_ALEN); | |
638 | ||
639 | /* Turn on appropriate WOL control bits */ | |
640 | sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT); | |
641 | ctrl = 0; | |
642 | if (sky2->wol & WAKE_PHY) | |
643 | ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT; | |
644 | else | |
645 | ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT; | |
646 | ||
647 | if (sky2->wol & WAKE_MAGIC) | |
648 | ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT; | |
649 | else | |
650 | ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;; | |
651 | ||
652 | ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT; | |
653 | sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl); | |
654 | ||
655 | /* Turn on legacy PCI-Express PME mode */ | |
656 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
657 | reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); | |
658 | reg1 |= PCI_Y2_PME_LEGACY; | |
659 | sky2_pci_write32(hw, PCI_DEV_REG1, reg1); | |
660 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); | |
661 | ||
662 | /* block receiver */ | |
663 | sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); | |
664 | ||
665 | } | |
666 | ||
69161611 SH |
667 | static void sky2_set_tx_stfwd(struct sky2_hw *hw, unsigned port) |
668 | { | |
669 | if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev != CHIP_REV_YU_EX_A0) { | |
670 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), | |
671 | TX_STFW_ENA | | |
672 | (hw->dev[port]->mtu > ETH_DATA_LEN) ? TX_JUMBO_ENA : TX_JUMBO_DIS); | |
673 | } else { | |
674 | if (hw->dev[port]->mtu > ETH_DATA_LEN) { | |
675 | /* set Tx GMAC FIFO Almost Empty Threshold */ | |
676 | sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR), | |
677 | (ECU_JUMBO_WM << 16) | ECU_AE_THR); | |
678 | ||
679 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), | |
680 | TX_JUMBO_ENA | TX_STFW_DIS); | |
681 | ||
682 | /* Can't do offload because of lack of store/forward */ | |
683 | hw->dev[port]->features &= ~(NETIF_F_TSO | NETIF_F_SG | |
684 | | NETIF_F_ALL_CSUM); | |
685 | } else | |
686 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), | |
687 | TX_JUMBO_DIS | TX_STFW_ENA); | |
688 | } | |
689 | } | |
690 | ||
cd28ab6a SH |
691 | static void sky2_mac_init(struct sky2_hw *hw, unsigned port) |
692 | { | |
693 | struct sky2_port *sky2 = netdev_priv(hw->dev[port]); | |
694 | u16 reg; | |
695 | int i; | |
696 | const u8 *addr = hw->dev[port]->dev_addr; | |
697 | ||
42eeea01 | 698 | sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); |
b4ed372b | 699 | sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR); |
cd28ab6a SH |
700 | |
701 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); | |
702 | ||
793b883e | 703 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 && port == 1) { |
cd28ab6a SH |
704 | /* WA DEV_472 -- looks like crossed wires on port 2 */ |
705 | /* clear GMAC 1 Control reset */ | |
706 | sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR); | |
707 | do { | |
708 | sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET); | |
709 | sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR); | |
710 | } while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL || | |
711 | gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 || | |
712 | gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0); | |
713 | } | |
714 | ||
793b883e | 715 | sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC)); |
cd28ab6a | 716 | |
2eaba1a2 SH |
717 | /* Enable Transmit FIFO Underrun */ |
718 | sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK); | |
719 | ||
e07b1aa8 | 720 | spin_lock_bh(&sky2->phy_lock); |
cd28ab6a | 721 | sky2_phy_init(hw, port); |
e07b1aa8 | 722 | spin_unlock_bh(&sky2->phy_lock); |
cd28ab6a SH |
723 | |
724 | /* MIB clear */ | |
725 | reg = gma_read16(hw, port, GM_PHY_ADDR); | |
726 | gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR); | |
727 | ||
43f2f104 SH |
728 | for (i = GM_MIB_CNT_BASE; i <= GM_MIB_CNT_END; i += 4) |
729 | gma_read16(hw, port, i); | |
cd28ab6a SH |
730 | gma_write16(hw, port, GM_PHY_ADDR, reg); |
731 | ||
732 | /* transmit control */ | |
733 | gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF)); | |
734 | ||
735 | /* receive control reg: unicast + multicast + no FCS */ | |
736 | gma_write16(hw, port, GM_RX_CTRL, | |
793b883e | 737 | GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA); |
cd28ab6a SH |
738 | |
739 | /* transmit flow control */ | |
740 | gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff); | |
741 | ||
742 | /* transmit parameter */ | |
743 | gma_write16(hw, port, GM_TX_PARAM, | |
744 | TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) | | |
745 | TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) | | |
746 | TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) | | |
747 | TX_BACK_OFF_LIM(TX_BOF_LIM_DEF)); | |
748 | ||
749 | /* serial mode register */ | |
750 | reg = DATA_BLIND_VAL(DATA_BLIND_DEF) | | |
6b1a3aef | 751 | GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); |
cd28ab6a | 752 | |
6b1a3aef | 753 | if (hw->dev[port]->mtu > ETH_DATA_LEN) |
cd28ab6a SH |
754 | reg |= GM_SMOD_JUMBO_ENA; |
755 | ||
756 | gma_write16(hw, port, GM_SERIAL_MODE, reg); | |
757 | ||
cd28ab6a SH |
758 | /* virtual address for data */ |
759 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr); | |
760 | ||
793b883e SH |
761 | /* physical address: used for pause frames */ |
762 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr); | |
763 | ||
764 | /* ignore counter overflows */ | |
cd28ab6a SH |
765 | gma_write16(hw, port, GM_TX_IRQ_MSK, 0); |
766 | gma_write16(hw, port, GM_RX_IRQ_MSK, 0); | |
767 | gma_write16(hw, port, GM_TR_IRQ_MSK, 0); | |
768 | ||
769 | /* Configure Rx MAC FIFO */ | |
770 | sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR); | |
69161611 SH |
771 | reg = GMF_OPER_ON | GMF_RX_F_FL_ON; |
772 | if (hw->chip_id == CHIP_ID_YUKON_EX) | |
773 | reg |= GMF_RX_OVER_ON; | |
774 | ||
775 | sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), reg); | |
cd28ab6a | 776 | |
d571b694 | 777 | /* Flush Rx MAC FIFO on any flow control or error */ |
42eeea01 | 778 | sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR); |
cd28ab6a | 779 | |
8df9a876 SH |
780 | /* Set threshold to 0xa (64 bytes) + 1 to workaround pause bug */ |
781 | sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1); | |
cd28ab6a SH |
782 | |
783 | /* Configure Tx MAC FIFO */ | |
784 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR); | |
785 | sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON); | |
5a5b1ea0 | 786 | |
93745494 | 787 | if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) { |
8df9a876 | 788 | sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8); |
5a5b1ea0 | 789 | sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8); |
b628ed98 | 790 | |
69161611 | 791 | sky2_set_tx_stfwd(hw, port); |
5a5b1ea0 | 792 | } |
793 | ||
cd28ab6a SH |
794 | } |
795 | ||
67712901 SH |
796 | /* Assign Ram Buffer allocation to queue */ |
797 | static void sky2_ramset(struct sky2_hw *hw, u16 q, u32 start, u32 space) | |
cd28ab6a | 798 | { |
67712901 SH |
799 | u32 end; |
800 | ||
801 | /* convert from K bytes to qwords used for hw register */ | |
802 | start *= 1024/8; | |
803 | space *= 1024/8; | |
804 | end = start + space - 1; | |
793b883e | 805 | |
cd28ab6a SH |
806 | sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR); |
807 | sky2_write32(hw, RB_ADDR(q, RB_START), start); | |
808 | sky2_write32(hw, RB_ADDR(q, RB_END), end); | |
809 | sky2_write32(hw, RB_ADDR(q, RB_WP), start); | |
810 | sky2_write32(hw, RB_ADDR(q, RB_RP), start); | |
811 | ||
812 | if (q == Q_R1 || q == Q_R2) { | |
1c28f6ba | 813 | u32 tp = space - space/4; |
793b883e | 814 | |
1c28f6ba SH |
815 | /* On receive queue's set the thresholds |
816 | * give receiver priority when > 3/4 full | |
817 | * send pause when down to 2K | |
818 | */ | |
819 | sky2_write32(hw, RB_ADDR(q, RB_RX_UTHP), tp); | |
820 | sky2_write32(hw, RB_ADDR(q, RB_RX_LTHP), space/2); | |
793b883e | 821 | |
1c28f6ba SH |
822 | tp = space - 2048/8; |
823 | sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp); | |
824 | sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4); | |
cd28ab6a SH |
825 | } else { |
826 | /* Enable store & forward on Tx queue's because | |
827 | * Tx FIFO is only 1K on Yukon | |
828 | */ | |
829 | sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD); | |
830 | } | |
831 | ||
832 | sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD); | |
793b883e | 833 | sky2_read8(hw, RB_ADDR(q, RB_CTRL)); |
cd28ab6a SH |
834 | } |
835 | ||
cd28ab6a | 836 | /* Setup Bus Memory Interface */ |
af4ed7e6 | 837 | static void sky2_qset(struct sky2_hw *hw, u16 q) |
cd28ab6a SH |
838 | { |
839 | sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET); | |
840 | sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT); | |
841 | sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON); | |
af4ed7e6 | 842 | sky2_write32(hw, Q_ADDR(q, Q_WM), BMU_WM_DEFAULT); |
cd28ab6a SH |
843 | } |
844 | ||
cd28ab6a SH |
845 | /* Setup prefetch unit registers. This is the interface between |
846 | * hardware and driver list elements | |
847 | */ | |
8cc048e3 | 848 | static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr, |
cd28ab6a SH |
849 | u64 addr, u32 last) |
850 | { | |
cd28ab6a SH |
851 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET); |
852 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR); | |
853 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), addr >> 32); | |
854 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), (u32) addr); | |
855 | sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last); | |
856 | sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON); | |
793b883e SH |
857 | |
858 | sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL)); | |
cd28ab6a SH |
859 | } |
860 | ||
793b883e SH |
861 | static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2) |
862 | { | |
863 | struct sky2_tx_le *le = sky2->tx_le + sky2->tx_prod; | |
864 | ||
cb5d9547 | 865 | sky2->tx_prod = RING_NEXT(sky2->tx_prod, TX_RING_SIZE); |
291ea614 | 866 | le->ctrl = 0; |
793b883e SH |
867 | return le; |
868 | } | |
cd28ab6a | 869 | |
291ea614 SH |
870 | static inline struct tx_ring_info *tx_le_re(struct sky2_port *sky2, |
871 | struct sky2_tx_le *le) | |
872 | { | |
873 | return sky2->tx_ring + (le - sky2->tx_le); | |
874 | } | |
875 | ||
290d4de5 SH |
876 | /* Update chip's next pointer */ |
877 | static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, u16 idx) | |
cd28ab6a | 878 | { |
50432cb5 | 879 | /* Make sure write' to descriptors are complete before we tell hardware */ |
762c2de2 | 880 | wmb(); |
50432cb5 SH |
881 | sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx); |
882 | ||
883 | /* Synchronize I/O on since next processor may write to tail */ | |
884 | mmiowb(); | |
cd28ab6a SH |
885 | } |
886 | ||
793b883e | 887 | |
cd28ab6a SH |
888 | static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2) |
889 | { | |
890 | struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put; | |
cb5d9547 | 891 | sky2->rx_put = RING_NEXT(sky2->rx_put, RX_LE_SIZE); |
291ea614 | 892 | le->ctrl = 0; |
cd28ab6a SH |
893 | return le; |
894 | } | |
895 | ||
14d0263f SH |
896 | /* Build description to hardware for one receive segment */ |
897 | static void sky2_rx_add(struct sky2_port *sky2, u8 op, | |
898 | dma_addr_t map, unsigned len) | |
cd28ab6a SH |
899 | { |
900 | struct sky2_rx_le *le; | |
36eb0c71 | 901 | u32 hi = upper_32_bits(map); |
cd28ab6a | 902 | |
793b883e | 903 | if (sky2->rx_addr64 != hi) { |
cd28ab6a | 904 | le = sky2_next_rx(sky2); |
793b883e | 905 | le->addr = cpu_to_le32(hi); |
cd28ab6a | 906 | le->opcode = OP_ADDR64 | HW_OWNER; |
36eb0c71 | 907 | sky2->rx_addr64 = upper_32_bits(map + len); |
cd28ab6a | 908 | } |
793b883e | 909 | |
cd28ab6a | 910 | le = sky2_next_rx(sky2); |
734d1868 SH |
911 | le->addr = cpu_to_le32((u32) map); |
912 | le->length = cpu_to_le16(len); | |
14d0263f | 913 | le->opcode = op | HW_OWNER; |
cd28ab6a SH |
914 | } |
915 | ||
14d0263f SH |
916 | /* Build description to hardware for one possibly fragmented skb */ |
917 | static void sky2_rx_submit(struct sky2_port *sky2, | |
918 | const struct rx_ring_info *re) | |
919 | { | |
920 | int i; | |
921 | ||
922 | sky2_rx_add(sky2, OP_PACKET, re->data_addr, sky2->rx_data_size); | |
923 | ||
924 | for (i = 0; i < skb_shinfo(re->skb)->nr_frags; i++) | |
925 | sky2_rx_add(sky2, OP_BUFFER, re->frag_addr[i], PAGE_SIZE); | |
926 | } | |
927 | ||
928 | ||
929 | static void sky2_rx_map_skb(struct pci_dev *pdev, struct rx_ring_info *re, | |
930 | unsigned size) | |
931 | { | |
932 | struct sk_buff *skb = re->skb; | |
933 | int i; | |
934 | ||
935 | re->data_addr = pci_map_single(pdev, skb->data, size, PCI_DMA_FROMDEVICE); | |
936 | pci_unmap_len_set(re, data_size, size); | |
937 | ||
938 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) | |
939 | re->frag_addr[i] = pci_map_page(pdev, | |
940 | skb_shinfo(skb)->frags[i].page, | |
941 | skb_shinfo(skb)->frags[i].page_offset, | |
942 | skb_shinfo(skb)->frags[i].size, | |
943 | PCI_DMA_FROMDEVICE); | |
944 | } | |
945 | ||
946 | static void sky2_rx_unmap_skb(struct pci_dev *pdev, struct rx_ring_info *re) | |
947 | { | |
948 | struct sk_buff *skb = re->skb; | |
949 | int i; | |
950 | ||
951 | pci_unmap_single(pdev, re->data_addr, pci_unmap_len(re, data_size), | |
952 | PCI_DMA_FROMDEVICE); | |
953 | ||
954 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) | |
955 | pci_unmap_page(pdev, re->frag_addr[i], | |
956 | skb_shinfo(skb)->frags[i].size, | |
957 | PCI_DMA_FROMDEVICE); | |
958 | } | |
793b883e | 959 | |
cd28ab6a SH |
960 | /* Tell chip where to start receive checksum. |
961 | * Actually has two checksums, but set both same to avoid possible byte | |
962 | * order problems. | |
963 | */ | |
793b883e | 964 | static void rx_set_checksum(struct sky2_port *sky2) |
cd28ab6a SH |
965 | { |
966 | struct sky2_rx_le *le; | |
967 | ||
69161611 SH |
968 | if (sky2->hw->chip_id != CHIP_ID_YUKON_EX) { |
969 | le = sky2_next_rx(sky2); | |
970 | le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN); | |
971 | le->ctrl = 0; | |
972 | le->opcode = OP_TCPSTART | HW_OWNER; | |
793b883e | 973 | |
69161611 SH |
974 | sky2_write32(sky2->hw, |
975 | Q_ADDR(rxqaddr[sky2->port], Q_CSR), | |
976 | sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM); | |
977 | } | |
cd28ab6a SH |
978 | |
979 | } | |
980 | ||
6b1a3aef | 981 | /* |
982 | * The RX Stop command will not work for Yukon-2 if the BMU does not | |
983 | * reach the end of packet and since we can't make sure that we have | |
984 | * incoming data, we must reset the BMU while it is not doing a DMA | |
985 | * transfer. Since it is possible that the RX path is still active, | |
986 | * the RX RAM buffer will be stopped first, so any possible incoming | |
987 | * data will not trigger a DMA. After the RAM buffer is stopped, the | |
988 | * BMU is polled until any DMA in progress is ended and only then it | |
989 | * will be reset. | |
990 | */ | |
991 | static void sky2_rx_stop(struct sky2_port *sky2) | |
992 | { | |
993 | struct sky2_hw *hw = sky2->hw; | |
994 | unsigned rxq = rxqaddr[sky2->port]; | |
995 | int i; | |
996 | ||
997 | /* disable the RAM Buffer receive queue */ | |
998 | sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD); | |
999 | ||
1000 | for (i = 0; i < 0xffff; i++) | |
1001 | if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL)) | |
1002 | == sky2_read8(hw, RB_ADDR(rxq, Q_RL))) | |
1003 | goto stopped; | |
1004 | ||
1005 | printk(KERN_WARNING PFX "%s: receiver stop failed\n", | |
1006 | sky2->netdev->name); | |
1007 | stopped: | |
1008 | sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST); | |
1009 | ||
1010 | /* reset the Rx prefetch unit */ | |
1011 | sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET); | |
50432cb5 | 1012 | mmiowb(); |
6b1a3aef | 1013 | } |
793b883e | 1014 | |
d571b694 | 1015 | /* Clean out receive buffer area, assumes receiver hardware stopped */ |
cd28ab6a SH |
1016 | static void sky2_rx_clean(struct sky2_port *sky2) |
1017 | { | |
1018 | unsigned i; | |
1019 | ||
1020 | memset(sky2->rx_le, 0, RX_LE_BYTES); | |
793b883e | 1021 | for (i = 0; i < sky2->rx_pending; i++) { |
291ea614 | 1022 | struct rx_ring_info *re = sky2->rx_ring + i; |
cd28ab6a SH |
1023 | |
1024 | if (re->skb) { | |
14d0263f | 1025 | sky2_rx_unmap_skb(sky2->hw->pdev, re); |
cd28ab6a SH |
1026 | kfree_skb(re->skb); |
1027 | re->skb = NULL; | |
1028 | } | |
1029 | } | |
1030 | } | |
1031 | ||
ef743d33 | 1032 | /* Basic MII support */ |
1033 | static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
1034 | { | |
1035 | struct mii_ioctl_data *data = if_mii(ifr); | |
1036 | struct sky2_port *sky2 = netdev_priv(dev); | |
1037 | struct sky2_hw *hw = sky2->hw; | |
1038 | int err = -EOPNOTSUPP; | |
1039 | ||
1040 | if (!netif_running(dev)) | |
1041 | return -ENODEV; /* Phy still in reset */ | |
1042 | ||
d89e1343 | 1043 | switch (cmd) { |
ef743d33 | 1044 | case SIOCGMIIPHY: |
1045 | data->phy_id = PHY_ADDR_MARV; | |
1046 | ||
1047 | /* fallthru */ | |
1048 | case SIOCGMIIREG: { | |
1049 | u16 val = 0; | |
91c86df5 | 1050 | |
e07b1aa8 | 1051 | spin_lock_bh(&sky2->phy_lock); |
ef743d33 | 1052 | err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val); |
e07b1aa8 | 1053 | spin_unlock_bh(&sky2->phy_lock); |
91c86df5 | 1054 | |
ef743d33 | 1055 | data->val_out = val; |
1056 | break; | |
1057 | } | |
1058 | ||
1059 | case SIOCSMIIREG: | |
1060 | if (!capable(CAP_NET_ADMIN)) | |
1061 | return -EPERM; | |
1062 | ||
e07b1aa8 | 1063 | spin_lock_bh(&sky2->phy_lock); |
ef743d33 | 1064 | err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f, |
1065 | data->val_in); | |
e07b1aa8 | 1066 | spin_unlock_bh(&sky2->phy_lock); |
ef743d33 | 1067 | break; |
1068 | } | |
1069 | return err; | |
1070 | } | |
1071 | ||
d1f13708 | 1072 | #ifdef SKY2_VLAN_TAG_USED |
1073 | static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) | |
1074 | { | |
1075 | struct sky2_port *sky2 = netdev_priv(dev); | |
1076 | struct sky2_hw *hw = sky2->hw; | |
1077 | u16 port = sky2->port; | |
d1f13708 | 1078 | |
2bb8c262 | 1079 | netif_tx_lock_bh(dev); |
3d4e66f5 | 1080 | netif_poll_disable(sky2->hw->dev[0]); |
d1f13708 | 1081 | |
d1f13708 | 1082 | sky2->vlgrp = grp; |
3d4e66f5 SH |
1083 | if (grp) { |
1084 | sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), | |
1085 | RX_VLAN_STRIP_ON); | |
1086 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), | |
1087 | TX_VLAN_TAG_ON); | |
1088 | } else { | |
1089 | sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), | |
1090 | RX_VLAN_STRIP_OFF); | |
1091 | sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), | |
1092 | TX_VLAN_TAG_OFF); | |
1093 | } | |
d1f13708 | 1094 | |
3d4e66f5 | 1095 | netif_poll_enable(sky2->hw->dev[0]); |
2bb8c262 | 1096 | netif_tx_unlock_bh(dev); |
d1f13708 | 1097 | } |
1098 | #endif | |
1099 | ||
82788c7a | 1100 | /* |
14d0263f SH |
1101 | * Allocate an skb for receiving. If the MTU is large enough |
1102 | * make the skb non-linear with a fragment list of pages. | |
1103 | * | |
82788c7a SH |
1104 | * It appears the hardware has a bug in the FIFO logic that |
1105 | * cause it to hang if the FIFO gets overrun and the receive buffer | |
497d7c86 | 1106 | * is not 64 byte aligned. The buffer returned from netdev_alloc_skb is |
1107 | * aligned except if slab debugging is enabled. | |
82788c7a | 1108 | */ |
14d0263f | 1109 | static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2) |
82788c7a SH |
1110 | { |
1111 | struct sk_buff *skb; | |
14d0263f SH |
1112 | unsigned long p; |
1113 | int i; | |
82788c7a | 1114 | |
14d0263f SH |
1115 | skb = netdev_alloc_skb(sky2->netdev, sky2->rx_data_size + RX_SKB_ALIGN); |
1116 | if (!skb) | |
1117 | goto nomem; | |
1118 | ||
1119 | p = (unsigned long) skb->data; | |
1120 | skb_reserve(skb, ALIGN(p, RX_SKB_ALIGN) - p); | |
1121 | ||
1122 | for (i = 0; i < sky2->rx_nfrags; i++) { | |
1123 | struct page *page = alloc_page(GFP_ATOMIC); | |
1124 | ||
1125 | if (!page) | |
1126 | goto free_partial; | |
1127 | skb_fill_page_desc(skb, i, page, 0, PAGE_SIZE); | |
82788c7a SH |
1128 | } |
1129 | ||
1130 | return skb; | |
14d0263f SH |
1131 | free_partial: |
1132 | kfree_skb(skb); | |
1133 | nomem: | |
1134 | return NULL; | |
82788c7a SH |
1135 | } |
1136 | ||
55c9dd35 SH |
1137 | static inline void sky2_rx_update(struct sky2_port *sky2, unsigned rxq) |
1138 | { | |
1139 | sky2_put_idx(sky2->hw, rxq, sky2->rx_put); | |
1140 | } | |
1141 | ||
cd28ab6a SH |
1142 | /* |
1143 | * Allocate and setup receiver buffer pool. | |
14d0263f SH |
1144 | * Normal case this ends up creating one list element for skb |
1145 | * in the receive ring. Worst case if using large MTU and each | |
1146 | * allocation falls on a different 64 bit region, that results | |
1147 | * in 6 list elements per ring entry. | |
1148 | * One element is used for checksum enable/disable, and one | |
1149 | * extra to avoid wrap. | |
cd28ab6a | 1150 | */ |
6b1a3aef | 1151 | static int sky2_rx_start(struct sky2_port *sky2) |
cd28ab6a | 1152 | { |
6b1a3aef | 1153 | struct sky2_hw *hw = sky2->hw; |
14d0263f | 1154 | struct rx_ring_info *re; |
6b1a3aef | 1155 | unsigned rxq = rxqaddr[sky2->port]; |
14d0263f | 1156 | unsigned i, size, space, thresh; |
cd28ab6a | 1157 | |
6b1a3aef | 1158 | sky2->rx_put = sky2->rx_next = 0; |
af4ed7e6 | 1159 | sky2_qset(hw, rxq); |
977bdf06 | 1160 | |
c3905bc4 SH |
1161 | /* On PCI express lowering the watermark gives better performance */ |
1162 | if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP)) | |
1163 | sky2_write32(hw, Q_ADDR(rxq, Q_WM), BMU_WM_PEX); | |
1164 | ||
1165 | /* These chips have no ram buffer? | |
1166 | * MAC Rx RAM Read is controlled by hardware */ | |
8df9a876 | 1167 | if (hw->chip_id == CHIP_ID_YUKON_EC_U && |
c3905bc4 SH |
1168 | (hw->chip_rev == CHIP_REV_YU_EC_U_A1 |
1169 | || hw->chip_rev == CHIP_REV_YU_EC_U_B0)) | |
f449c7c1 | 1170 | sky2_write32(hw, Q_ADDR(rxq, Q_TEST), F_M_RX_RAM_DIS); |
977bdf06 | 1171 | |
6b1a3aef | 1172 | sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1); |
1173 | ||
1174 | rx_set_checksum(sky2); | |
14d0263f SH |
1175 | |
1176 | /* Space needed for frame data + headers rounded up */ | |
f957da2a | 1177 | size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8); |
14d0263f SH |
1178 | |
1179 | /* Stopping point for hardware truncation */ | |
1180 | thresh = (size - 8) / sizeof(u32); | |
1181 | ||
1182 | /* Account for overhead of skb - to avoid order > 0 allocation */ | |
1183 | space = SKB_DATA_ALIGN(size) + NET_SKB_PAD | |
1184 | + sizeof(struct skb_shared_info); | |
1185 | ||
1186 | sky2->rx_nfrags = space >> PAGE_SHIFT; | |
1187 | BUG_ON(sky2->rx_nfrags > ARRAY_SIZE(re->frag_addr)); | |
1188 | ||
1189 | if (sky2->rx_nfrags != 0) { | |
1190 | /* Compute residue after pages */ | |
1191 | space = sky2->rx_nfrags << PAGE_SHIFT; | |
1192 | ||
1193 | if (space < size) | |
1194 | size -= space; | |
1195 | else | |
1196 | size = 0; | |
1197 | ||
1198 | /* Optimize to handle small packets and headers */ | |
1199 | if (size < copybreak) | |
1200 | size = copybreak; | |
1201 | if (size < ETH_HLEN) | |
1202 | size = ETH_HLEN; | |
1203 | } | |
1204 | sky2->rx_data_size = size; | |
1205 | ||
1206 | /* Fill Rx ring */ | |
793b883e | 1207 | for (i = 0; i < sky2->rx_pending; i++) { |
14d0263f | 1208 | re = sky2->rx_ring + i; |
cd28ab6a | 1209 | |
14d0263f | 1210 | re->skb = sky2_rx_alloc(sky2); |
cd28ab6a SH |
1211 | if (!re->skb) |
1212 | goto nomem; | |
1213 | ||
14d0263f SH |
1214 | sky2_rx_map_skb(hw->pdev, re, sky2->rx_data_size); |
1215 | sky2_rx_submit(sky2, re); | |
cd28ab6a SH |
1216 | } |
1217 | ||
a1433ac4 SH |
1218 | /* |
1219 | * The receiver hangs if it receives frames larger than the | |
1220 | * packet buffer. As a workaround, truncate oversize frames, but | |
1221 | * the register is limited to 9 bits, so if you do frames > 2052 | |
1222 | * you better get the MTU right! | |
1223 | */ | |
a1433ac4 SH |
1224 | if (thresh > 0x1ff) |
1225 | sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_OFF); | |
1226 | else { | |
1227 | sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), thresh); | |
1228 | sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON); | |
1229 | } | |
1230 | ||
6b1a3aef | 1231 | /* Tell chip about available buffers */ |
55c9dd35 | 1232 | sky2_rx_update(sky2, rxq); |
cd28ab6a SH |
1233 | return 0; |
1234 | nomem: | |
1235 | sky2_rx_clean(sky2); | |
1236 | return -ENOMEM; | |
1237 | } | |
1238 | ||
1239 | /* Bring up network interface. */ | |
1240 | static int sky2_up(struct net_device *dev) | |
1241 | { | |
1242 | struct sky2_port *sky2 = netdev_priv(dev); | |
1243 | struct sky2_hw *hw = sky2->hw; | |
1244 | unsigned port = sky2->port; | |
67712901 | 1245 | u32 ramsize, imask; |
ee7abb04 | 1246 | int cap, err = -ENOMEM; |
843a46f4 | 1247 | struct net_device *otherdev = hw->dev[sky2->port^1]; |
cd28ab6a | 1248 | |
ee7abb04 SH |
1249 | /* |
1250 | * On dual port PCI-X card, there is an problem where status | |
1251 | * can be received out of order due to split transactions | |
843a46f4 | 1252 | */ |
ee7abb04 SH |
1253 | if (otherdev && netif_running(otherdev) && |
1254 | (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) { | |
1255 | struct sky2_port *osky2 = netdev_priv(otherdev); | |
1256 | u16 cmd; | |
1257 | ||
1258 | cmd = sky2_pci_read16(hw, cap + PCI_X_CMD); | |
1259 | cmd &= ~PCI_X_CMD_MAX_SPLIT; | |
1260 | sky2_pci_write16(hw, cap + PCI_X_CMD, cmd); | |
1261 | ||
1262 | sky2->rx_csum = 0; | |
1263 | osky2->rx_csum = 0; | |
1264 | } | |
843a46f4 | 1265 | |
cd28ab6a SH |
1266 | if (netif_msg_ifup(sky2)) |
1267 | printk(KERN_INFO PFX "%s: enabling interface\n", dev->name); | |
1268 | ||
55d7b4e6 SH |
1269 | netif_carrier_off(dev); |
1270 | ||
cd28ab6a SH |
1271 | /* must be power of 2 */ |
1272 | sky2->tx_le = pci_alloc_consistent(hw->pdev, | |
793b883e SH |
1273 | TX_RING_SIZE * |
1274 | sizeof(struct sky2_tx_le), | |
cd28ab6a SH |
1275 | &sky2->tx_le_map); |
1276 | if (!sky2->tx_le) | |
1277 | goto err_out; | |
1278 | ||
6cdbbdf3 | 1279 | sky2->tx_ring = kcalloc(TX_RING_SIZE, sizeof(struct tx_ring_info), |
cd28ab6a SH |
1280 | GFP_KERNEL); |
1281 | if (!sky2->tx_ring) | |
1282 | goto err_out; | |
1283 | sky2->tx_prod = sky2->tx_cons = 0; | |
cd28ab6a SH |
1284 | |
1285 | sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES, | |
1286 | &sky2->rx_le_map); | |
1287 | if (!sky2->rx_le) | |
1288 | goto err_out; | |
1289 | memset(sky2->rx_le, 0, RX_LE_BYTES); | |
1290 | ||
291ea614 | 1291 | sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct rx_ring_info), |
cd28ab6a SH |
1292 | GFP_KERNEL); |
1293 | if (!sky2->rx_ring) | |
1294 | goto err_out; | |
1295 | ||
d3bcfbeb | 1296 | sky2_phy_power(hw, port, 1); |
1297 | ||
cd28ab6a SH |
1298 | sky2_mac_init(hw, port); |
1299 | ||
67712901 SH |
1300 | /* Register is number of 4K blocks on internal RAM buffer. */ |
1301 | ramsize = sky2_read8(hw, B2_E_0) * 4; | |
1302 | printk(KERN_INFO PFX "%s: ram buffer %dK\n", dev->name, ramsize); | |
1c28f6ba | 1303 | |
67712901 SH |
1304 | if (ramsize > 0) { |
1305 | u32 rxspace; | |
cd28ab6a | 1306 | |
67712901 SH |
1307 | if (ramsize < 16) |
1308 | rxspace = ramsize / 2; | |
1309 | else | |
1310 | rxspace = 8 + (2*(ramsize - 16))/3; | |
cd28ab6a | 1311 | |
67712901 SH |
1312 | sky2_ramset(hw, rxqaddr[port], 0, rxspace); |
1313 | sky2_ramset(hw, txqaddr[port], rxspace, ramsize - rxspace); | |
1314 | ||
1315 | /* Make sure SyncQ is disabled */ | |
1316 | sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL), | |
1317 | RB_RST_SET); | |
1318 | } | |
793b883e | 1319 | |
af4ed7e6 | 1320 | sky2_qset(hw, txqaddr[port]); |
5a5b1ea0 | 1321 | |
69161611 SH |
1322 | /* This is copied from sk98lin 10.0.5.3; no one tells me about erratta's */ |
1323 | if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev == CHIP_REV_YU_EX_B0) | |
1324 | sky2_write32(hw, Q_ADDR(txqaddr[port], Q_TEST), F_TX_CHK_AUTO_OFF); | |
1325 | ||
977bdf06 | 1326 | /* Set almost empty threshold */ |
c2716fb4 SH |
1327 | if (hw->chip_id == CHIP_ID_YUKON_EC_U |
1328 | && hw->chip_rev == CHIP_REV_YU_EC_U_A0) | |
b628ed98 | 1329 | sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), ECU_TXFF_LEV); |
5a5b1ea0 | 1330 | |
6b1a3aef | 1331 | sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map, |
1332 | TX_RING_SIZE - 1); | |
cd28ab6a | 1333 | |
6b1a3aef | 1334 | err = sky2_rx_start(sky2); |
cd28ab6a SH |
1335 | if (err) |
1336 | goto err_out; | |
1337 | ||
cd28ab6a | 1338 | /* Enable interrupts from phy/mac for port */ |
e07b1aa8 | 1339 | imask = sky2_read32(hw, B0_IMSK); |
f4ea431b | 1340 | imask |= portirq_msk[port]; |
e07b1aa8 SH |
1341 | sky2_write32(hw, B0_IMSK, imask); |
1342 | ||
cd28ab6a SH |
1343 | return 0; |
1344 | ||
1345 | err_out: | |
1b537565 | 1346 | if (sky2->rx_le) { |
cd28ab6a SH |
1347 | pci_free_consistent(hw->pdev, RX_LE_BYTES, |
1348 | sky2->rx_le, sky2->rx_le_map); | |
1b537565 SH |
1349 | sky2->rx_le = NULL; |
1350 | } | |
1351 | if (sky2->tx_le) { | |
cd28ab6a SH |
1352 | pci_free_consistent(hw->pdev, |
1353 | TX_RING_SIZE * sizeof(struct sky2_tx_le), | |
1354 | sky2->tx_le, sky2->tx_le_map); | |
1b537565 SH |
1355 | sky2->tx_le = NULL; |
1356 | } | |
1357 | kfree(sky2->tx_ring); | |
1358 | kfree(sky2->rx_ring); | |
cd28ab6a | 1359 | |
1b537565 SH |
1360 | sky2->tx_ring = NULL; |
1361 | sky2->rx_ring = NULL; | |
cd28ab6a SH |
1362 | return err; |
1363 | } | |
1364 | ||
793b883e SH |
1365 | /* Modular subtraction in ring */ |
1366 | static inline int tx_dist(unsigned tail, unsigned head) | |
1367 | { | |
cb5d9547 | 1368 | return (head - tail) & (TX_RING_SIZE - 1); |
793b883e | 1369 | } |
cd28ab6a | 1370 | |
793b883e SH |
1371 | /* Number of list elements available for next tx */ |
1372 | static inline int tx_avail(const struct sky2_port *sky2) | |
cd28ab6a | 1373 | { |
793b883e | 1374 | return sky2->tx_pending - tx_dist(sky2->tx_cons, sky2->tx_prod); |
cd28ab6a SH |
1375 | } |
1376 | ||
793b883e | 1377 | /* Estimate of number of transmit list elements required */ |
28bd181a | 1378 | static unsigned tx_le_req(const struct sk_buff *skb) |
cd28ab6a | 1379 | { |
793b883e SH |
1380 | unsigned count; |
1381 | ||
1382 | count = sizeof(dma_addr_t) / sizeof(u32); | |
1383 | count += skb_shinfo(skb)->nr_frags * count; | |
1384 | ||
89114afd | 1385 | if (skb_is_gso(skb)) |
793b883e SH |
1386 | ++count; |
1387 | ||
84fa7933 | 1388 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
793b883e SH |
1389 | ++count; |
1390 | ||
1391 | return count; | |
cd28ab6a SH |
1392 | } |
1393 | ||
793b883e SH |
1394 | /* |
1395 | * Put one packet in ring for transmit. | |
1396 | * A single packet can generate multiple list elements, and | |
1397 | * the number of ring elements will probably be less than the number | |
1398 | * of list elements used. | |
1399 | */ | |
cd28ab6a SH |
1400 | static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev) |
1401 | { | |
1402 | struct sky2_port *sky2 = netdev_priv(dev); | |
1403 | struct sky2_hw *hw = sky2->hw; | |
d1f13708 | 1404 | struct sky2_tx_le *le = NULL; |
6cdbbdf3 | 1405 | struct tx_ring_info *re; |
cd28ab6a SH |
1406 | unsigned i, len; |
1407 | dma_addr_t mapping; | |
1408 | u32 addr64; | |
1409 | u16 mss; | |
1410 | u8 ctrl; | |
1411 | ||
2bb8c262 SH |
1412 | if (unlikely(tx_avail(sky2) < tx_le_req(skb))) |
1413 | return NETDEV_TX_BUSY; | |
cd28ab6a | 1414 | |
793b883e | 1415 | if (unlikely(netif_msg_tx_queued(sky2))) |
cd28ab6a SH |
1416 | printk(KERN_DEBUG "%s: tx queued, slot %u, len %d\n", |
1417 | dev->name, sky2->tx_prod, skb->len); | |
1418 | ||
cd28ab6a SH |
1419 | len = skb_headlen(skb); |
1420 | mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
36eb0c71 | 1421 | addr64 = upper_32_bits(mapping); |
793b883e | 1422 | |
a018e330 | 1423 | /* Send high bits if changed or crosses boundary */ |
36eb0c71 SH |
1424 | if (addr64 != sky2->tx_addr64 || |
1425 | upper_32_bits(mapping + len) != sky2->tx_addr64) { | |
793b883e | 1426 | le = get_tx_le(sky2); |
f65b138c | 1427 | le->addr = cpu_to_le32(addr64); |
793b883e | 1428 | le->opcode = OP_ADDR64 | HW_OWNER; |
36eb0c71 | 1429 | sky2->tx_addr64 = upper_32_bits(mapping + len); |
793b883e | 1430 | } |
cd28ab6a SH |
1431 | |
1432 | /* Check for TCP Segmentation Offload */ | |
7967168c | 1433 | mss = skb_shinfo(skb)->gso_size; |
793b883e | 1434 | if (mss != 0) { |
69161611 SH |
1435 | if (hw->chip_id != CHIP_ID_YUKON_EX) |
1436 | mss += ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb); | |
1437 | ||
1438 | if (mss != sky2->tx_last_mss) { | |
1439 | le = get_tx_le(sky2); | |
1440 | le->addr = cpu_to_le32(mss); | |
1441 | if (hw->chip_id == CHIP_ID_YUKON_EX) | |
1442 | le->opcode = OP_MSS | HW_OWNER; | |
1443 | else | |
1444 | le->opcode = OP_LRGLEN | HW_OWNER; | |
e07560cd | 1445 | sky2->tx_last_mss = mss; |
1446 | } | |
cd28ab6a SH |
1447 | } |
1448 | ||
cd28ab6a | 1449 | ctrl = 0; |
d1f13708 | 1450 | #ifdef SKY2_VLAN_TAG_USED |
1451 | /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */ | |
1452 | if (sky2->vlgrp && vlan_tx_tag_present(skb)) { | |
1453 | if (!le) { | |
1454 | le = get_tx_le(sky2); | |
f65b138c | 1455 | le->addr = 0; |
d1f13708 | 1456 | le->opcode = OP_VLAN|HW_OWNER; |
d1f13708 | 1457 | } else |
1458 | le->opcode |= OP_VLAN; | |
1459 | le->length = cpu_to_be16(vlan_tx_tag_get(skb)); | |
1460 | ctrl |= INS_VLAN; | |
1461 | } | |
1462 | #endif | |
1463 | ||
1464 | /* Handle TCP checksum offload */ | |
84fa7933 | 1465 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
69161611 SH |
1466 | /* On Yukon EX (some versions) encoding change. */ |
1467 | if (hw->chip_id == CHIP_ID_YUKON_EX | |
1468 | && hw->chip_rev != CHIP_REV_YU_EX_B0) | |
1469 | ctrl |= CALSUM; /* auto checksum */ | |
1470 | else { | |
1471 | const unsigned offset = skb_transport_offset(skb); | |
1472 | u32 tcpsum; | |
1473 | ||
1474 | tcpsum = offset << 16; /* sum start */ | |
1475 | tcpsum |= offset + skb->csum_offset; /* sum write */ | |
1476 | ||
1477 | ctrl |= CALSUM | WR_SUM | INIT_SUM | LOCK_SUM; | |
1478 | if (ip_hdr(skb)->protocol == IPPROTO_UDP) | |
1479 | ctrl |= UDPTCP; | |
1480 | ||
1481 | if (tcpsum != sky2->tx_tcpsum) { | |
1482 | sky2->tx_tcpsum = tcpsum; | |
1483 | ||
1484 | le = get_tx_le(sky2); | |
1485 | le->addr = cpu_to_le32(tcpsum); | |
1486 | le->length = 0; /* initial checksum value */ | |
1487 | le->ctrl = 1; /* one packet */ | |
1488 | le->opcode = OP_TCPLISW | HW_OWNER; | |
1489 | } | |
1d179332 | 1490 | } |
cd28ab6a SH |
1491 | } |
1492 | ||
1493 | le = get_tx_le(sky2); | |
f65b138c | 1494 | le->addr = cpu_to_le32((u32) mapping); |
cd28ab6a SH |
1495 | le->length = cpu_to_le16(len); |
1496 | le->ctrl = ctrl; | |
793b883e | 1497 | le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER); |
cd28ab6a | 1498 | |
291ea614 | 1499 | re = tx_le_re(sky2, le); |
cd28ab6a | 1500 | re->skb = skb; |
6cdbbdf3 | 1501 | pci_unmap_addr_set(re, mapaddr, mapping); |
291ea614 | 1502 | pci_unmap_len_set(re, maplen, len); |
cd28ab6a SH |
1503 | |
1504 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
291ea614 | 1505 | const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
cd28ab6a SH |
1506 | |
1507 | mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset, | |
1508 | frag->size, PCI_DMA_TODEVICE); | |
36eb0c71 | 1509 | addr64 = upper_32_bits(mapping); |
793b883e SH |
1510 | if (addr64 != sky2->tx_addr64) { |
1511 | le = get_tx_le(sky2); | |
f65b138c | 1512 | le->addr = cpu_to_le32(addr64); |
793b883e SH |
1513 | le->ctrl = 0; |
1514 | le->opcode = OP_ADDR64 | HW_OWNER; | |
1515 | sky2->tx_addr64 = addr64; | |
cd28ab6a SH |
1516 | } |
1517 | ||
1518 | le = get_tx_le(sky2); | |
f65b138c | 1519 | le->addr = cpu_to_le32((u32) mapping); |
cd28ab6a SH |
1520 | le->length = cpu_to_le16(frag->size); |
1521 | le->ctrl = ctrl; | |
793b883e | 1522 | le->opcode = OP_BUFFER | HW_OWNER; |
cd28ab6a | 1523 | |
291ea614 SH |
1524 | re = tx_le_re(sky2, le); |
1525 | re->skb = skb; | |
1526 | pci_unmap_addr_set(re, mapaddr, mapping); | |
1527 | pci_unmap_len_set(re, maplen, frag->size); | |
cd28ab6a | 1528 | } |
6cdbbdf3 | 1529 | |
cd28ab6a SH |
1530 | le->ctrl |= EOP; |
1531 | ||
97bda706 | 1532 | if (tx_avail(sky2) <= MAX_SKB_TX_LE) |
1533 | netif_stop_queue(dev); | |
b19666d9 | 1534 | |
290d4de5 | 1535 | sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod); |
cd28ab6a | 1536 | |
cd28ab6a SH |
1537 | dev->trans_start = jiffies; |
1538 | return NETDEV_TX_OK; | |
1539 | } | |
1540 | ||
cd28ab6a | 1541 | /* |
793b883e SH |
1542 | * Free ring elements from starting at tx_cons until "done" |
1543 | * | |
1544 | * NB: the hardware will tell us about partial completion of multi-part | |
291ea614 | 1545 | * buffers so make sure not to free skb to early. |
cd28ab6a | 1546 | */ |
d11c13e7 | 1547 | static void sky2_tx_complete(struct sky2_port *sky2, u16 done) |
cd28ab6a | 1548 | { |
d11c13e7 | 1549 | struct net_device *dev = sky2->netdev; |
af2a58ac | 1550 | struct pci_dev *pdev = sky2->hw->pdev; |
291ea614 | 1551 | unsigned idx; |
cd28ab6a | 1552 | |
0e3ff6aa | 1553 | BUG_ON(done >= TX_RING_SIZE); |
2224795d | 1554 | |
291ea614 SH |
1555 | for (idx = sky2->tx_cons; idx != done; |
1556 | idx = RING_NEXT(idx, TX_RING_SIZE)) { | |
1557 | struct sky2_tx_le *le = sky2->tx_le + idx; | |
1558 | struct tx_ring_info *re = sky2->tx_ring + idx; | |
1559 | ||
1560 | switch(le->opcode & ~HW_OWNER) { | |
1561 | case OP_LARGESEND: | |
1562 | case OP_PACKET: | |
1563 | pci_unmap_single(pdev, | |
1564 | pci_unmap_addr(re, mapaddr), | |
1565 | pci_unmap_len(re, maplen), | |
1566 | PCI_DMA_TODEVICE); | |
af2a58ac | 1567 | break; |
291ea614 SH |
1568 | case OP_BUFFER: |
1569 | pci_unmap_page(pdev, pci_unmap_addr(re, mapaddr), | |
1570 | pci_unmap_len(re, maplen), | |
734d1868 | 1571 | PCI_DMA_TODEVICE); |
291ea614 SH |
1572 | break; |
1573 | } | |
1574 | ||
1575 | if (le->ctrl & EOP) { | |
1576 | if (unlikely(netif_msg_tx_done(sky2))) | |
1577 | printk(KERN_DEBUG "%s: tx done %u\n", | |
1578 | dev->name, idx); | |
3cf26753 | 1579 | |
2bf56fe2 | 1580 | sky2->net_stats.tx_packets++; |
1581 | sky2->net_stats.tx_bytes += re->skb->len; | |
1582 | ||
794b2bd2 | 1583 | dev_kfree_skb_any(re->skb); |
3cf26753 | 1584 | sky2->tx_next = RING_NEXT(idx, TX_RING_SIZE); |
cd28ab6a | 1585 | } |
793b883e | 1586 | } |
793b883e | 1587 | |
291ea614 | 1588 | sky2->tx_cons = idx; |
50432cb5 SH |
1589 | smp_mb(); |
1590 | ||
22e11703 | 1591 | if (tx_avail(sky2) > MAX_SKB_TX_LE + 4) |
cd28ab6a | 1592 | netif_wake_queue(dev); |
cd28ab6a SH |
1593 | } |
1594 | ||
1595 | /* Cleanup all untransmitted buffers, assume transmitter not running */ | |
2bb8c262 | 1596 | static void sky2_tx_clean(struct net_device *dev) |
cd28ab6a | 1597 | { |
2bb8c262 SH |
1598 | struct sky2_port *sky2 = netdev_priv(dev); |
1599 | ||
1600 | netif_tx_lock_bh(dev); | |
d11c13e7 | 1601 | sky2_tx_complete(sky2, sky2->tx_prod); |
2bb8c262 | 1602 | netif_tx_unlock_bh(dev); |
cd28ab6a SH |
1603 | } |
1604 | ||
1605 | /* Network shutdown */ | |
1606 | static int sky2_down(struct net_device *dev) | |
1607 | { | |
1608 | struct sky2_port *sky2 = netdev_priv(dev); | |
1609 | struct sky2_hw *hw = sky2->hw; | |
1610 | unsigned port = sky2->port; | |
1611 | u16 ctrl; | |
e07b1aa8 | 1612 | u32 imask; |
cd28ab6a | 1613 | |
1b537565 SH |
1614 | /* Never really got started! */ |
1615 | if (!sky2->tx_le) | |
1616 | return 0; | |
1617 | ||
cd28ab6a SH |
1618 | if (netif_msg_ifdown(sky2)) |
1619 | printk(KERN_INFO PFX "%s: disabling interface\n", dev->name); | |
1620 | ||
018d1c66 | 1621 | /* Stop more packets from being queued */ |
cd28ab6a SH |
1622 | netif_stop_queue(dev); |
1623 | ||
ebc646f6 SH |
1624 | /* Disable port IRQ */ |
1625 | imask = sky2_read32(hw, B0_IMSK); | |
1626 | imask &= ~portirq_msk[port]; | |
1627 | sky2_write32(hw, B0_IMSK, imask); | |
1628 | ||
d3bcfbeb | 1629 | sky2_gmac_reset(hw, port); |
793b883e | 1630 | |
cd28ab6a SH |
1631 | /* Stop transmitter */ |
1632 | sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP); | |
1633 | sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR)); | |
1634 | ||
1635 | sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), | |
793b883e | 1636 | RB_RST_SET | RB_DIS_OP_MD); |
cd28ab6a SH |
1637 | |
1638 | ctrl = gma_read16(hw, port, GM_GP_CTRL); | |
793b883e | 1639 | ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA); |
cd28ab6a SH |
1640 | gma_write16(hw, port, GM_GP_CTRL, ctrl); |
1641 | ||
1642 | sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); | |
1643 | ||
1644 | /* Workaround shared GMAC reset */ | |
793b883e SH |
1645 | if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 |
1646 | && port == 0 && hw->dev[1] && netif_running(hw->dev[1]))) | |
cd28ab6a SH |
1647 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); |
1648 | ||
1649 | /* Disable Force Sync bit and Enable Alloc bit */ | |
1650 | sky2_write8(hw, SK_REG(port, TXA_CTRL), | |
1651 | TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC); | |
1652 | ||
1653 | /* Stop Interval Timer and Limit Counter of Tx Arbiter */ | |
1654 | sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L); | |
1655 | sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L); | |
1656 | ||
1657 | /* Reset the PCI FIFO of the async Tx queue */ | |
793b883e SH |
1658 | sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), |
1659 | BMU_RST_SET | BMU_FIFO_RST); | |
cd28ab6a SH |
1660 | |
1661 | /* Reset the Tx prefetch units */ | |
1662 | sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL), | |
1663 | PREF_UNIT_RST_SET); | |
1664 | ||
1665 | sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET); | |
1666 | ||
6b1a3aef | 1667 | sky2_rx_stop(sky2); |
cd28ab6a SH |
1668 | |
1669 | sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); | |
1670 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET); | |
1671 | ||
d3bcfbeb | 1672 | sky2_phy_power(hw, port, 0); |
1673 | ||
55d7b4e6 SH |
1674 | netif_carrier_off(dev); |
1675 | ||
d571b694 | 1676 | /* turn off LED's */ |
cd28ab6a SH |
1677 | sky2_write16(hw, B0_Y2LED, LED_STAT_OFF); |
1678 | ||
018d1c66 | 1679 | synchronize_irq(hw->pdev->irq); |
1680 | ||
2bb8c262 | 1681 | sky2_tx_clean(dev); |
cd28ab6a SH |
1682 | sky2_rx_clean(sky2); |
1683 | ||
1684 | pci_free_consistent(hw->pdev, RX_LE_BYTES, | |
1685 | sky2->rx_le, sky2->rx_le_map); | |
1686 | kfree(sky2->rx_ring); | |
1687 | ||
1688 | pci_free_consistent(hw->pdev, | |
1689 | TX_RING_SIZE * sizeof(struct sky2_tx_le), | |
1690 | sky2->tx_le, sky2->tx_le_map); | |
1691 | kfree(sky2->tx_ring); | |
1692 | ||
1b537565 SH |
1693 | sky2->tx_le = NULL; |
1694 | sky2->rx_le = NULL; | |
1695 | ||
1696 | sky2->rx_ring = NULL; | |
1697 | sky2->tx_ring = NULL; | |
1698 | ||
cd28ab6a SH |
1699 | return 0; |
1700 | } | |
1701 | ||
1702 | static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux) | |
1703 | { | |
b89165f2 | 1704 | if (!sky2_is_copper(hw)) |
793b883e SH |
1705 | return SPEED_1000; |
1706 | ||
cd28ab6a SH |
1707 | if (hw->chip_id == CHIP_ID_YUKON_FE) |
1708 | return (aux & PHY_M_PS_SPEED_100) ? SPEED_100 : SPEED_10; | |
1709 | ||
1710 | switch (aux & PHY_M_PS_SPEED_MSK) { | |
1711 | case PHY_M_PS_SPEED_1000: | |
1712 | return SPEED_1000; | |
1713 | case PHY_M_PS_SPEED_100: | |
1714 | return SPEED_100; | |
1715 | default: | |
1716 | return SPEED_10; | |
1717 | } | |
1718 | } | |
1719 | ||
1720 | static void sky2_link_up(struct sky2_port *sky2) | |
1721 | { | |
1722 | struct sky2_hw *hw = sky2->hw; | |
1723 | unsigned port = sky2->port; | |
1724 | u16 reg; | |
16ad91e1 SH |
1725 | static const char *fc_name[] = { |
1726 | [FC_NONE] = "none", | |
1727 | [FC_TX] = "tx", | |
1728 | [FC_RX] = "rx", | |
1729 | [FC_BOTH] = "both", | |
1730 | }; | |
cd28ab6a | 1731 | |
cd28ab6a | 1732 | /* enable Rx/Tx */ |
2eaba1a2 | 1733 | reg = gma_read16(hw, port, GM_GP_CTRL); |
cd28ab6a SH |
1734 | reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; |
1735 | gma_write16(hw, port, GM_GP_CTRL, reg); | |
cd28ab6a SH |
1736 | |
1737 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK); | |
1738 | ||
1739 | netif_carrier_on(sky2->netdev); | |
cd28ab6a SH |
1740 | |
1741 | /* Turn on link LED */ | |
793b883e | 1742 | sky2_write8(hw, SK_REG(port, LNK_LED_REG), |
cd28ab6a SH |
1743 | LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF); |
1744 | ||
93745494 SH |
1745 | if (hw->chip_id == CHIP_ID_YUKON_XL |
1746 | || hw->chip_id == CHIP_ID_YUKON_EC_U | |
1747 | || hw->chip_id == CHIP_ID_YUKON_EX) { | |
793b883e | 1748 | u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); |
ed6d32c7 SH |
1749 | u16 led = PHY_M_LEDC_LOS_CTRL(1); /* link active */ |
1750 | ||
1751 | switch(sky2->speed) { | |
1752 | case SPEED_10: | |
1753 | led |= PHY_M_LEDC_INIT_CTRL(7); | |
1754 | break; | |
1755 | ||
1756 | case SPEED_100: | |
1757 | led |= PHY_M_LEDC_STA1_CTRL(7); | |
1758 | break; | |
1759 | ||
1760 | case SPEED_1000: | |
1761 | led |= PHY_M_LEDC_STA0_CTRL(7); | |
1762 | break; | |
1763 | } | |
793b883e SH |
1764 | |
1765 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
ed6d32c7 | 1766 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, led); |
793b883e SH |
1767 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); |
1768 | } | |
1769 | ||
cd28ab6a SH |
1770 | if (netif_msg_link(sky2)) |
1771 | printk(KERN_INFO PFX | |
d571b694 | 1772 | "%s: Link is up at %d Mbps, %s duplex, flow control %s\n", |
cd28ab6a SH |
1773 | sky2->netdev->name, sky2->speed, |
1774 | sky2->duplex == DUPLEX_FULL ? "full" : "half", | |
16ad91e1 | 1775 | fc_name[sky2->flow_status]); |
cd28ab6a SH |
1776 | } |
1777 | ||
1778 | static void sky2_link_down(struct sky2_port *sky2) | |
1779 | { | |
1780 | struct sky2_hw *hw = sky2->hw; | |
1781 | unsigned port = sky2->port; | |
1782 | u16 reg; | |
1783 | ||
1784 | gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0); | |
1785 | ||
1786 | reg = gma_read16(hw, port, GM_GP_CTRL); | |
1787 | reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA); | |
1788 | gma_write16(hw, port, GM_GP_CTRL, reg); | |
cd28ab6a | 1789 | |
cd28ab6a | 1790 | netif_carrier_off(sky2->netdev); |
cd28ab6a SH |
1791 | |
1792 | /* Turn on link LED */ | |
1793 | sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); | |
1794 | ||
1795 | if (netif_msg_link(sky2)) | |
1796 | printk(KERN_INFO PFX "%s: Link is down.\n", sky2->netdev->name); | |
2eaba1a2 | 1797 | |
cd28ab6a SH |
1798 | sky2_phy_init(hw, port); |
1799 | } | |
1800 | ||
16ad91e1 SH |
1801 | static enum flow_control sky2_flow(int rx, int tx) |
1802 | { | |
1803 | if (rx) | |
1804 | return tx ? FC_BOTH : FC_RX; | |
1805 | else | |
1806 | return tx ? FC_TX : FC_NONE; | |
1807 | } | |
1808 | ||
793b883e SH |
1809 | static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux) |
1810 | { | |
1811 | struct sky2_hw *hw = sky2->hw; | |
1812 | unsigned port = sky2->port; | |
da4c1ff4 | 1813 | u16 advert, lpa; |
793b883e | 1814 | |
da4c1ff4 | 1815 | advert = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV); |
793b883e | 1816 | lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP); |
793b883e SH |
1817 | if (lpa & PHY_M_AN_RF) { |
1818 | printk(KERN_ERR PFX "%s: remote fault", sky2->netdev->name); | |
1819 | return -1; | |
1820 | } | |
1821 | ||
793b883e SH |
1822 | if (!(aux & PHY_M_PS_SPDUP_RES)) { |
1823 | printk(KERN_ERR PFX "%s: speed/duplex mismatch", | |
1824 | sky2->netdev->name); | |
1825 | return -1; | |
1826 | } | |
1827 | ||
793b883e | 1828 | sky2->speed = sky2_phy_speed(hw, aux); |
7c74ac1c | 1829 | sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; |
793b883e | 1830 | |
da4c1ff4 SH |
1831 | /* Since the pause result bits seem to in different positions on |
1832 | * different chips. look at registers. | |
1833 | */ | |
1834 | if (!sky2_is_copper(hw)) { | |
1835 | /* Shift for bits in fiber PHY */ | |
1836 | advert &= ~(ADVERTISE_PAUSE_CAP|ADVERTISE_PAUSE_ASYM); | |
1837 | lpa &= ~(LPA_PAUSE_CAP|LPA_PAUSE_ASYM); | |
1838 | ||
1839 | if (advert & ADVERTISE_1000XPAUSE) | |
1840 | advert |= ADVERTISE_PAUSE_CAP; | |
1841 | if (advert & ADVERTISE_1000XPSE_ASYM) | |
1842 | advert |= ADVERTISE_PAUSE_ASYM; | |
1843 | if (lpa & LPA_1000XPAUSE) | |
1844 | lpa |= LPA_PAUSE_CAP; | |
1845 | if (lpa & LPA_1000XPAUSE_ASYM) | |
1846 | lpa |= LPA_PAUSE_ASYM; | |
1847 | } | |
793b883e | 1848 | |
da4c1ff4 SH |
1849 | sky2->flow_status = FC_NONE; |
1850 | if (advert & ADVERTISE_PAUSE_CAP) { | |
1851 | if (lpa & LPA_PAUSE_CAP) | |
1852 | sky2->flow_status = FC_BOTH; | |
1853 | else if (advert & ADVERTISE_PAUSE_ASYM) | |
1854 | sky2->flow_status = FC_RX; | |
1855 | } else if (advert & ADVERTISE_PAUSE_ASYM) { | |
1856 | if ((lpa & LPA_PAUSE_CAP) && (lpa & LPA_PAUSE_ASYM)) | |
1857 | sky2->flow_status = FC_TX; | |
1858 | } | |
793b883e | 1859 | |
16ad91e1 | 1860 | if (sky2->duplex == DUPLEX_HALF && sky2->speed < SPEED_1000 |
93745494 | 1861 | && !(hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX)) |
16ad91e1 | 1862 | sky2->flow_status = FC_NONE; |
2eaba1a2 | 1863 | |
da4c1ff4 | 1864 | if (sky2->flow_status & FC_TX) |
793b883e SH |
1865 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); |
1866 | else | |
1867 | sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); | |
1868 | ||
1869 | return 0; | |
1870 | } | |
cd28ab6a | 1871 | |
e07b1aa8 SH |
1872 | /* Interrupt from PHY */ |
1873 | static void sky2_phy_intr(struct sky2_hw *hw, unsigned port) | |
cd28ab6a | 1874 | { |
e07b1aa8 SH |
1875 | struct net_device *dev = hw->dev[port]; |
1876 | struct sky2_port *sky2 = netdev_priv(dev); | |
cd28ab6a SH |
1877 | u16 istatus, phystat; |
1878 | ||
ebc646f6 SH |
1879 | if (!netif_running(dev)) |
1880 | return; | |
1881 | ||
e07b1aa8 SH |
1882 | spin_lock(&sky2->phy_lock); |
1883 | istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT); | |
1884 | phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT); | |
1885 | ||
cd28ab6a SH |
1886 | if (netif_msg_intr(sky2)) |
1887 | printk(KERN_INFO PFX "%s: phy interrupt status 0x%x 0x%x\n", | |
1888 | sky2->netdev->name, istatus, phystat); | |
1889 | ||
2eaba1a2 | 1890 | if (sky2->autoneg == AUTONEG_ENABLE && (istatus & PHY_M_IS_AN_COMPL)) { |
793b883e SH |
1891 | if (sky2_autoneg_done(sky2, phystat) == 0) |
1892 | sky2_link_up(sky2); | |
1893 | goto out; | |
1894 | } | |
cd28ab6a | 1895 | |
793b883e SH |
1896 | if (istatus & PHY_M_IS_LSP_CHANGE) |
1897 | sky2->speed = sky2_phy_speed(hw, phystat); | |
cd28ab6a | 1898 | |
793b883e SH |
1899 | if (istatus & PHY_M_IS_DUP_CHANGE) |
1900 | sky2->duplex = | |
1901 | (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; | |
cd28ab6a | 1902 | |
793b883e SH |
1903 | if (istatus & PHY_M_IS_LST_CHANGE) { |
1904 | if (phystat & PHY_M_PS_LINK_UP) | |
cd28ab6a | 1905 | sky2_link_up(sky2); |
793b883e SH |
1906 | else |
1907 | sky2_link_down(sky2); | |
cd28ab6a | 1908 | } |
793b883e | 1909 | out: |
e07b1aa8 | 1910 | spin_unlock(&sky2->phy_lock); |
cd28ab6a SH |
1911 | } |
1912 | ||
62335ab0 | 1913 | /* Transmit timeout is only called if we are running, carrier is up |
302d1252 SH |
1914 | * and tx queue is full (stopped). |
1915 | */ | |
cd28ab6a SH |
1916 | static void sky2_tx_timeout(struct net_device *dev) |
1917 | { | |
1918 | struct sky2_port *sky2 = netdev_priv(dev); | |
8cc048e3 | 1919 | struct sky2_hw *hw = sky2->hw; |
cd28ab6a SH |
1920 | |
1921 | if (netif_msg_timer(sky2)) | |
1922 | printk(KERN_ERR PFX "%s: tx timeout\n", dev->name); | |
1923 | ||
8f24664d | 1924 | printk(KERN_DEBUG PFX "%s: transmit ring %u .. %u report=%u done=%u\n", |
62335ab0 SH |
1925 | dev->name, sky2->tx_cons, sky2->tx_prod, |
1926 | sky2_read16(hw, sky2->port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX), | |
1927 | sky2_read16(hw, Q_ADDR(txqaddr[sky2->port], Q_DONE))); | |
8f24664d | 1928 | |
81906791 SH |
1929 | /* can't restart safely under softirq */ |
1930 | schedule_work(&hw->restart_work); | |
cd28ab6a SH |
1931 | } |
1932 | ||
1933 | static int sky2_change_mtu(struct net_device *dev, int new_mtu) | |
1934 | { | |
6b1a3aef | 1935 | struct sky2_port *sky2 = netdev_priv(dev); |
1936 | struct sky2_hw *hw = sky2->hw; | |
b628ed98 | 1937 | unsigned port = sky2->port; |
6b1a3aef | 1938 | int err; |
1939 | u16 ctl, mode; | |
e07b1aa8 | 1940 | u32 imask; |
cd28ab6a SH |
1941 | |
1942 | if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) | |
1943 | return -EINVAL; | |
1944 | ||
d2adf4f6 SH |
1945 | if (new_mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_FE) |
1946 | return -EINVAL; | |
1947 | ||
6b1a3aef | 1948 | if (!netif_running(dev)) { |
1949 | dev->mtu = new_mtu; | |
1950 | return 0; | |
1951 | } | |
1952 | ||
e07b1aa8 | 1953 | imask = sky2_read32(hw, B0_IMSK); |
6b1a3aef | 1954 | sky2_write32(hw, B0_IMSK, 0); |
1955 | ||
018d1c66 | 1956 | dev->trans_start = jiffies; /* prevent tx timeout */ |
1957 | netif_stop_queue(dev); | |
1958 | netif_poll_disable(hw->dev[0]); | |
1959 | ||
e07b1aa8 SH |
1960 | synchronize_irq(hw->pdev->irq); |
1961 | ||
69161611 SH |
1962 | if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) |
1963 | sky2_set_tx_stfwd(hw, port); | |
b628ed98 SH |
1964 | |
1965 | ctl = gma_read16(hw, port, GM_GP_CTRL); | |
1966 | gma_write16(hw, port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA); | |
6b1a3aef | 1967 | sky2_rx_stop(sky2); |
1968 | sky2_rx_clean(sky2); | |
cd28ab6a SH |
1969 | |
1970 | dev->mtu = new_mtu; | |
14d0263f | 1971 | |
6b1a3aef | 1972 | mode = DATA_BLIND_VAL(DATA_BLIND_DEF) | |
1973 | GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); | |
1974 | ||
1975 | if (dev->mtu > ETH_DATA_LEN) | |
1976 | mode |= GM_SMOD_JUMBO_ENA; | |
1977 | ||
b628ed98 | 1978 | gma_write16(hw, port, GM_SERIAL_MODE, mode); |
cd28ab6a | 1979 | |
b628ed98 | 1980 | sky2_write8(hw, RB_ADDR(rxqaddr[port], RB_CTRL), RB_ENA_OP_MD); |
cd28ab6a | 1981 | |
6b1a3aef | 1982 | err = sky2_rx_start(sky2); |
e07b1aa8 | 1983 | sky2_write32(hw, B0_IMSK, imask); |
018d1c66 | 1984 | |
1b537565 SH |
1985 | if (err) |
1986 | dev_close(dev); | |
1987 | else { | |
b628ed98 | 1988 | gma_write16(hw, port, GM_GP_CTRL, ctl); |
1b537565 SH |
1989 | |
1990 | netif_poll_enable(hw->dev[0]); | |
1991 | netif_wake_queue(dev); | |
1992 | } | |
1993 | ||
cd28ab6a SH |
1994 | return err; |
1995 | } | |
1996 | ||
14d0263f SH |
1997 | /* For small just reuse existing skb for next receive */ |
1998 | static struct sk_buff *receive_copy(struct sky2_port *sky2, | |
1999 | const struct rx_ring_info *re, | |
2000 | unsigned length) | |
2001 | { | |
2002 | struct sk_buff *skb; | |
2003 | ||
2004 | skb = netdev_alloc_skb(sky2->netdev, length + 2); | |
2005 | if (likely(skb)) { | |
2006 | skb_reserve(skb, 2); | |
2007 | pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->data_addr, | |
2008 | length, PCI_DMA_FROMDEVICE); | |
d626f62b | 2009 | skb_copy_from_linear_data(re->skb, skb->data, length); |
14d0263f SH |
2010 | skb->ip_summed = re->skb->ip_summed; |
2011 | skb->csum = re->skb->csum; | |
2012 | pci_dma_sync_single_for_device(sky2->hw->pdev, re->data_addr, | |
2013 | length, PCI_DMA_FROMDEVICE); | |
2014 | re->skb->ip_summed = CHECKSUM_NONE; | |
489b10c1 | 2015 | skb_put(skb, length); |
14d0263f SH |
2016 | } |
2017 | return skb; | |
2018 | } | |
2019 | ||
2020 | /* Adjust length of skb with fragments to match received data */ | |
2021 | static void skb_put_frags(struct sk_buff *skb, unsigned int hdr_space, | |
2022 | unsigned int length) | |
2023 | { | |
2024 | int i, num_frags; | |
2025 | unsigned int size; | |
2026 | ||
2027 | /* put header into skb */ | |
2028 | size = min(length, hdr_space); | |
2029 | skb->tail += size; | |
2030 | skb->len += size; | |
2031 | length -= size; | |
2032 | ||
2033 | num_frags = skb_shinfo(skb)->nr_frags; | |
2034 | for (i = 0; i < num_frags; i++) { | |
2035 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
2036 | ||
2037 | if (length == 0) { | |
2038 | /* don't need this page */ | |
2039 | __free_page(frag->page); | |
2040 | --skb_shinfo(skb)->nr_frags; | |
2041 | } else { | |
2042 | size = min(length, (unsigned) PAGE_SIZE); | |
2043 | ||
2044 | frag->size = size; | |
2045 | skb->data_len += size; | |
2046 | skb->truesize += size; | |
2047 | skb->len += size; | |
2048 | length -= size; | |
2049 | } | |
2050 | } | |
2051 | } | |
2052 | ||
2053 | /* Normal packet - take skb from ring element and put in a new one */ | |
2054 | static struct sk_buff *receive_new(struct sky2_port *sky2, | |
2055 | struct rx_ring_info *re, | |
2056 | unsigned int length) | |
2057 | { | |
2058 | struct sk_buff *skb, *nskb; | |
2059 | unsigned hdr_space = sky2->rx_data_size; | |
2060 | ||
14d0263f SH |
2061 | /* Don't be tricky about reusing pages (yet) */ |
2062 | nskb = sky2_rx_alloc(sky2); | |
2063 | if (unlikely(!nskb)) | |
2064 | return NULL; | |
2065 | ||
2066 | skb = re->skb; | |
2067 | sky2_rx_unmap_skb(sky2->hw->pdev, re); | |
2068 | ||
2069 | prefetch(skb->data); | |
2070 | re->skb = nskb; | |
2071 | sky2_rx_map_skb(sky2->hw->pdev, re, hdr_space); | |
2072 | ||
2073 | if (skb_shinfo(skb)->nr_frags) | |
2074 | skb_put_frags(skb, hdr_space, length); | |
2075 | else | |
489b10c1 | 2076 | skb_put(skb, length); |
14d0263f SH |
2077 | return skb; |
2078 | } | |
2079 | ||
cd28ab6a SH |
2080 | /* |
2081 | * Receive one packet. | |
d571b694 | 2082 | * For larger packets, get new buffer. |
cd28ab6a | 2083 | */ |
497d7c86 | 2084 | static struct sk_buff *sky2_receive(struct net_device *dev, |
cd28ab6a SH |
2085 | u16 length, u32 status) |
2086 | { | |
497d7c86 | 2087 | struct sky2_port *sky2 = netdev_priv(dev); |
291ea614 | 2088 | struct rx_ring_info *re = sky2->rx_ring + sky2->rx_next; |
79e57d32 | 2089 | struct sk_buff *skb = NULL; |
cd28ab6a SH |
2090 | |
2091 | if (unlikely(netif_msg_rx_status(sky2))) | |
2092 | printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n", | |
497d7c86 | 2093 | dev->name, sky2->rx_next, status, length); |
cd28ab6a | 2094 | |
793b883e | 2095 | sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending; |
d70cd51a | 2096 | prefetch(sky2->rx_ring + sky2->rx_next); |
cd28ab6a | 2097 | |
42eeea01 | 2098 | if (status & GMR_FS_ANY_ERR) |
cd28ab6a SH |
2099 | goto error; |
2100 | ||
42eeea01 | 2101 | if (!(status & GMR_FS_RX_OK)) |
2102 | goto resubmit; | |
2103 | ||
71749531 SH |
2104 | if (status >> 16 != length) |
2105 | goto len_mismatch; | |
2106 | ||
14d0263f SH |
2107 | if (length < copybreak) |
2108 | skb = receive_copy(sky2, re, length); | |
2109 | else | |
2110 | skb = receive_new(sky2, re, length); | |
793b883e | 2111 | resubmit: |
14d0263f | 2112 | sky2_rx_submit(sky2, re); |
79e57d32 | 2113 | |
cd28ab6a SH |
2114 | return skb; |
2115 | ||
71749531 SH |
2116 | len_mismatch: |
2117 | /* Truncation of overlength packets | |
2118 | causes PHY length to not match MAC length */ | |
2119 | ++sky2->net_stats.rx_length_errors; | |
2120 | ||
cd28ab6a | 2121 | error: |
6e15b712 | 2122 | ++sky2->net_stats.rx_errors; |
b6d77734 | 2123 | if (status & GMR_FS_RX_FF_OV) { |
a79abdc6 | 2124 | sky2->net_stats.rx_over_errors++; |
b6d77734 SH |
2125 | goto resubmit; |
2126 | } | |
6e15b712 | 2127 | |
3be92a70 | 2128 | if (netif_msg_rx_err(sky2) && net_ratelimit()) |
cd28ab6a | 2129 | printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n", |
497d7c86 | 2130 | dev->name, status, length); |
793b883e SH |
2131 | |
2132 | if (status & (GMR_FS_LONG_ERR | GMR_FS_UN_SIZE)) | |
cd28ab6a SH |
2133 | sky2->net_stats.rx_length_errors++; |
2134 | if (status & GMR_FS_FRAGMENT) | |
2135 | sky2->net_stats.rx_frame_errors++; | |
2136 | if (status & GMR_FS_CRC_ERR) | |
2137 | sky2->net_stats.rx_crc_errors++; | |
79e57d32 | 2138 | |
793b883e | 2139 | goto resubmit; |
cd28ab6a SH |
2140 | } |
2141 | ||
e07b1aa8 SH |
2142 | /* Transmit complete */ |
2143 | static inline void sky2_tx_done(struct net_device *dev, u16 last) | |
13b97b74 | 2144 | { |
e07b1aa8 | 2145 | struct sky2_port *sky2 = netdev_priv(dev); |
302d1252 | 2146 | |
e07b1aa8 | 2147 | if (netif_running(dev)) { |
2bb8c262 | 2148 | netif_tx_lock(dev); |
e07b1aa8 | 2149 | sky2_tx_complete(sky2, last); |
2bb8c262 | 2150 | netif_tx_unlock(dev); |
2224795d | 2151 | } |
cd28ab6a SH |
2152 | } |
2153 | ||
e07b1aa8 SH |
2154 | /* Process status response ring */ |
2155 | static int sky2_status_intr(struct sky2_hw *hw, int to_do) | |
cd28ab6a | 2156 | { |
e07b1aa8 | 2157 | int work_done = 0; |
55c9dd35 | 2158 | unsigned rx[2] = { 0, 0 }; |
e71ebd73 | 2159 | u16 hwidx = sky2_read16(hw, STAT_PUT_IDX); |
a8fd6266 | 2160 | |
af2a58ac | 2161 | rmb(); |
bea86103 | 2162 | |
e71ebd73 | 2163 | while (hw->st_idx != hwidx) { |
55c9dd35 | 2164 | struct sky2_port *sky2; |
13210ce5 | 2165 | struct sky2_status_le *le = hw->st_le + hw->st_idx; |
69161611 | 2166 | unsigned port = le->css & CSS_LINK_BIT; |
13210ce5 | 2167 | struct net_device *dev; |
cd28ab6a | 2168 | struct sk_buff *skb; |
cd28ab6a SH |
2169 | u32 status; |
2170 | u16 length; | |
2171 | ||
cb5d9547 | 2172 | hw->st_idx = RING_NEXT(hw->st_idx, STATUS_RING_SIZE); |
bea86103 | 2173 | |
69161611 | 2174 | dev = hw->dev[port]; |
13210ce5 | 2175 | sky2 = netdev_priv(dev); |
f65b138c SH |
2176 | length = le16_to_cpu(le->length); |
2177 | status = le32_to_cpu(le->status); | |
cd28ab6a | 2178 | |
e71ebd73 | 2179 | switch (le->opcode & ~HW_OWNER) { |
cd28ab6a | 2180 | case OP_RXSTAT: |
55c9dd35 | 2181 | ++rx[port]; |
497d7c86 | 2182 | skb = sky2_receive(dev, length, status); |
3225b919 SH |
2183 | if (unlikely(!skb)) { |
2184 | sky2->net_stats.rx_dropped++; | |
55c9dd35 | 2185 | break; |
3225b919 | 2186 | } |
13210ce5 | 2187 | |
69161611 SH |
2188 | /* This chip reports checksum status differently */ |
2189 | if (hw->chip_id == CHIP_ID_YUKON_EX) { | |
2190 | if (sky2->rx_csum && | |
2191 | (le->css & (CSS_ISIPV4 | CSS_ISIPV6)) && | |
2192 | (le->css & CSS_TCPUDPCSOK)) | |
2193 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
2194 | else | |
2195 | skb->ip_summed = CHECKSUM_NONE; | |
2196 | } | |
2197 | ||
13210ce5 | 2198 | skb->protocol = eth_type_trans(skb, dev); |
2bf56fe2 | 2199 | sky2->net_stats.rx_packets++; |
2200 | sky2->net_stats.rx_bytes += skb->len; | |
13210ce5 | 2201 | dev->last_rx = jiffies; |
2202 | ||
d1f13708 | 2203 | #ifdef SKY2_VLAN_TAG_USED |
2204 | if (sky2->vlgrp && (status & GMR_FS_VLAN)) { | |
2205 | vlan_hwaccel_receive_skb(skb, | |
2206 | sky2->vlgrp, | |
2207 | be16_to_cpu(sky2->rx_tag)); | |
2208 | } else | |
2209 | #endif | |
cd28ab6a | 2210 | netif_receive_skb(skb); |
13210ce5 | 2211 | |
22e11703 | 2212 | /* Stop after net poll weight */ |
13210ce5 | 2213 | if (++work_done >= to_do) |
2214 | goto exit_loop; | |
cd28ab6a SH |
2215 | break; |
2216 | ||
d1f13708 | 2217 | #ifdef SKY2_VLAN_TAG_USED |
2218 | case OP_RXVLAN: | |
2219 | sky2->rx_tag = length; | |
2220 | break; | |
2221 | ||
2222 | case OP_RXCHKSVLAN: | |
2223 | sky2->rx_tag = length; | |
2224 | /* fall through */ | |
2225 | #endif | |
cd28ab6a | 2226 | case OP_RXCHKS: |
87418307 SH |
2227 | if (!sky2->rx_csum) |
2228 | break; | |
2229 | ||
69161611 SH |
2230 | if (hw->chip_id == CHIP_ID_YUKON_EX) |
2231 | break; | |
2232 | ||
87418307 SH |
2233 | /* Both checksum counters are programmed to start at |
2234 | * the same offset, so unless there is a problem they | |
2235 | * should match. This failure is an early indication that | |
2236 | * hardware receive checksumming won't work. | |
2237 | */ | |
2238 | if (likely(status >> 16 == (status & 0xffff))) { | |
2239 | skb = sky2->rx_ring[sky2->rx_next].skb; | |
2240 | skb->ip_summed = CHECKSUM_COMPLETE; | |
2241 | skb->csum = status & 0xffff; | |
2242 | } else { | |
2243 | printk(KERN_NOTICE PFX "%s: hardware receive " | |
2244 | "checksum problem (status = %#x)\n", | |
2245 | dev->name, status); | |
2246 | sky2->rx_csum = 0; | |
2247 | sky2_write32(sky2->hw, | |
69161611 | 2248 | Q_ADDR(rxqaddr[port], Q_CSR), |
87418307 SH |
2249 | BMU_DIS_RX_CHKSUM); |
2250 | } | |
cd28ab6a SH |
2251 | break; |
2252 | ||
2253 | case OP_TXINDEXLE: | |
13b97b74 | 2254 | /* TX index reports status for both ports */ |
f55925d7 SH |
2255 | BUILD_BUG_ON(TX_RING_SIZE > 0x1000); |
2256 | sky2_tx_done(hw->dev[0], status & 0xfff); | |
e07b1aa8 SH |
2257 | if (hw->dev[1]) |
2258 | sky2_tx_done(hw->dev[1], | |
2259 | ((status >> 24) & 0xff) | |
2260 | | (u16)(length & 0xf) << 8); | |
cd28ab6a SH |
2261 | break; |
2262 | ||
cd28ab6a SH |
2263 | default: |
2264 | if (net_ratelimit()) | |
793b883e | 2265 | printk(KERN_WARNING PFX |
e71ebd73 | 2266 | "unknown status opcode 0x%x\n", le->opcode); |
cd28ab6a | 2267 | } |
13210ce5 | 2268 | } |
cd28ab6a | 2269 | |
fe2a24df SH |
2270 | /* Fully processed status ring so clear irq */ |
2271 | sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ); | |
2272 | ||
13210ce5 | 2273 | exit_loop: |
55c9dd35 SH |
2274 | if (rx[0]) |
2275 | sky2_rx_update(netdev_priv(hw->dev[0]), Q_R1); | |
22e11703 | 2276 | |
55c9dd35 SH |
2277 | if (rx[1]) |
2278 | sky2_rx_update(netdev_priv(hw->dev[1]), Q_R2); | |
22e11703 | 2279 | |
e07b1aa8 | 2280 | return work_done; |
cd28ab6a SH |
2281 | } |
2282 | ||
2283 | static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status) | |
2284 | { | |
2285 | struct net_device *dev = hw->dev[port]; | |
2286 | ||
3be92a70 SH |
2287 | if (net_ratelimit()) |
2288 | printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n", | |
2289 | dev->name, status); | |
cd28ab6a SH |
2290 | |
2291 | if (status & Y2_IS_PAR_RD1) { | |
3be92a70 SH |
2292 | if (net_ratelimit()) |
2293 | printk(KERN_ERR PFX "%s: ram data read parity error\n", | |
2294 | dev->name); | |
cd28ab6a SH |
2295 | /* Clear IRQ */ |
2296 | sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR); | |
2297 | } | |
2298 | ||
2299 | if (status & Y2_IS_PAR_WR1) { | |
3be92a70 SH |
2300 | if (net_ratelimit()) |
2301 | printk(KERN_ERR PFX "%s: ram data write parity error\n", | |
2302 | dev->name); | |
cd28ab6a SH |
2303 | |
2304 | sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR); | |
2305 | } | |
2306 | ||
2307 | if (status & Y2_IS_PAR_MAC1) { | |
3be92a70 SH |
2308 | if (net_ratelimit()) |
2309 | printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name); | |
cd28ab6a SH |
2310 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE); |
2311 | } | |
2312 | ||
2313 | if (status & Y2_IS_PAR_RX1) { | |
3be92a70 SH |
2314 | if (net_ratelimit()) |
2315 | printk(KERN_ERR PFX "%s: RX parity error\n", dev->name); | |
cd28ab6a SH |
2316 | sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR); |
2317 | } | |
2318 | ||
2319 | if (status & Y2_IS_TCP_TXA1) { | |
3be92a70 SH |
2320 | if (net_ratelimit()) |
2321 | printk(KERN_ERR PFX "%s: TCP segmentation error\n", | |
2322 | dev->name); | |
cd28ab6a SH |
2323 | sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP); |
2324 | } | |
2325 | } | |
2326 | ||
2327 | static void sky2_hw_intr(struct sky2_hw *hw) | |
2328 | { | |
2329 | u32 status = sky2_read32(hw, B0_HWE_ISRC); | |
2330 | ||
793b883e | 2331 | if (status & Y2_IS_TIST_OV) |
cd28ab6a | 2332 | sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); |
cd28ab6a SH |
2333 | |
2334 | if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) { | |
793b883e SH |
2335 | u16 pci_err; |
2336 | ||
56a645cc | 2337 | pci_err = sky2_pci_read16(hw, PCI_STATUS); |
3be92a70 | 2338 | if (net_ratelimit()) |
b02a9258 SH |
2339 | dev_err(&hw->pdev->dev, "PCI hardware error (0x%x)\n", |
2340 | pci_err); | |
cd28ab6a SH |
2341 | |
2342 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
56a645cc | 2343 | sky2_pci_write16(hw, PCI_STATUS, |
91aeb3ed | 2344 | pci_err | PCI_STATUS_ERROR_BITS); |
cd28ab6a SH |
2345 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
2346 | } | |
2347 | ||
2348 | if (status & Y2_IS_PCI_EXP) { | |
d571b694 | 2349 | /* PCI-Express uncorrectable Error occurred */ |
793b883e SH |
2350 | u32 pex_err; |
2351 | ||
7bd656d1 | 2352 | pex_err = sky2_pci_read32(hw, PEX_UNC_ERR_STAT); |
cd28ab6a | 2353 | |
3be92a70 | 2354 | if (net_ratelimit()) |
b02a9258 SH |
2355 | dev_err(&hw->pdev->dev, "PCI Express error (0x%x)\n", |
2356 | pex_err); | |
cd28ab6a SH |
2357 | |
2358 | /* clear the interrupt */ | |
2359 | sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); | |
7bd656d1 SH |
2360 | sky2_pci_write32(hw, PEX_UNC_ERR_STAT, |
2361 | 0xffffffffUL); | |
cd28ab6a SH |
2362 | sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); |
2363 | ||
7bd656d1 | 2364 | if (pex_err & PEX_FATAL_ERRORS) { |
cd28ab6a SH |
2365 | u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK); |
2366 | hwmsk &= ~Y2_IS_PCI_EXP; | |
2367 | sky2_write32(hw, B0_HWE_IMSK, hwmsk); | |
2368 | } | |
2369 | } | |
2370 | ||
2371 | if (status & Y2_HWE_L1_MASK) | |
2372 | sky2_hw_error(hw, 0, status); | |
2373 | status >>= 8; | |
2374 | if (status & Y2_HWE_L1_MASK) | |
2375 | sky2_hw_error(hw, 1, status); | |
2376 | } | |
2377 | ||
2378 | static void sky2_mac_intr(struct sky2_hw *hw, unsigned port) | |
2379 | { | |
2380 | struct net_device *dev = hw->dev[port]; | |
2381 | struct sky2_port *sky2 = netdev_priv(dev); | |
2382 | u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC)); | |
2383 | ||
2384 | if (netif_msg_intr(sky2)) | |
2385 | printk(KERN_INFO PFX "%s: mac interrupt status 0x%x\n", | |
2386 | dev->name, status); | |
2387 | ||
a3caeada SH |
2388 | if (status & GM_IS_RX_CO_OV) |
2389 | gma_read16(hw, port, GM_RX_IRQ_SRC); | |
2390 | ||
2391 | if (status & GM_IS_TX_CO_OV) | |
2392 | gma_read16(hw, port, GM_TX_IRQ_SRC); | |
2393 | ||
cd28ab6a SH |
2394 | if (status & GM_IS_RX_FF_OR) { |
2395 | ++sky2->net_stats.rx_fifo_errors; | |
2396 | sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO); | |
2397 | } | |
2398 | ||
2399 | if (status & GM_IS_TX_FF_UR) { | |
2400 | ++sky2->net_stats.tx_fifo_errors; | |
2401 | sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU); | |
2402 | } | |
cd28ab6a SH |
2403 | } |
2404 | ||
40b01727 SH |
2405 | /* This should never happen it is a bug. */ |
2406 | static void sky2_le_error(struct sky2_hw *hw, unsigned port, | |
2407 | u16 q, unsigned ring_size) | |
d257924e SH |
2408 | { |
2409 | struct net_device *dev = hw->dev[port]; | |
2410 | struct sky2_port *sky2 = netdev_priv(dev); | |
40b01727 SH |
2411 | unsigned idx; |
2412 | const u64 *le = (q == Q_R1 || q == Q_R2) | |
2413 | ? (u64 *) sky2->rx_le : (u64 *) sky2->tx_le; | |
d257924e | 2414 | |
40b01727 SH |
2415 | idx = sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_GET_IDX)); |
2416 | printk(KERN_ERR PFX "%s: descriptor error q=%#x get=%u [%llx] put=%u\n", | |
2417 | dev->name, (unsigned) q, idx, (unsigned long long) le[idx], | |
2418 | (unsigned) sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX))); | |
d257924e | 2419 | |
40b01727 | 2420 | sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_IRQ_CHK); |
d257924e | 2421 | } |
cd28ab6a | 2422 | |
d27ed387 SH |
2423 | /* If idle then force a fake soft NAPI poll once a second |
2424 | * to work around cases where sharing an edge triggered interrupt. | |
2425 | */ | |
eb35cf60 SH |
2426 | static inline void sky2_idle_start(struct sky2_hw *hw) |
2427 | { | |
2428 | if (idle_timeout > 0) | |
2429 | mod_timer(&hw->idle_timer, | |
2430 | jiffies + msecs_to_jiffies(idle_timeout)); | |
2431 | } | |
2432 | ||
d27ed387 SH |
2433 | static void sky2_idle(unsigned long arg) |
2434 | { | |
01bd7564 SH |
2435 | struct sky2_hw *hw = (struct sky2_hw *) arg; |
2436 | struct net_device *dev = hw->dev[0]; | |
d27ed387 | 2437 | |
d27ed387 SH |
2438 | if (__netif_rx_schedule_prep(dev)) |
2439 | __netif_rx_schedule(dev); | |
01bd7564 SH |
2440 | |
2441 | mod_timer(&hw->idle_timer, jiffies + msecs_to_jiffies(idle_timeout)); | |
d27ed387 SH |
2442 | } |
2443 | ||
40b01727 SH |
2444 | /* Hardware/software error handling */ |
2445 | static void sky2_err_intr(struct sky2_hw *hw, u32 status) | |
cd28ab6a | 2446 | { |
40b01727 SH |
2447 | if (net_ratelimit()) |
2448 | dev_warn(&hw->pdev->dev, "error interrupt status=%#x\n", status); | |
cd28ab6a | 2449 | |
1e5f1283 SH |
2450 | if (status & Y2_IS_HW_ERR) |
2451 | sky2_hw_intr(hw); | |
d257924e | 2452 | |
1e5f1283 SH |
2453 | if (status & Y2_IS_IRQ_MAC1) |
2454 | sky2_mac_intr(hw, 0); | |
cd28ab6a | 2455 | |
1e5f1283 SH |
2456 | if (status & Y2_IS_IRQ_MAC2) |
2457 | sky2_mac_intr(hw, 1); | |
cd28ab6a | 2458 | |
1e5f1283 | 2459 | if (status & Y2_IS_CHK_RX1) |
40b01727 | 2460 | sky2_le_error(hw, 0, Q_R1, RX_LE_SIZE); |
d257924e | 2461 | |
1e5f1283 | 2462 | if (status & Y2_IS_CHK_RX2) |
40b01727 | 2463 | sky2_le_error(hw, 1, Q_R2, RX_LE_SIZE); |
d257924e | 2464 | |
1e5f1283 | 2465 | if (status & Y2_IS_CHK_TXA1) |
40b01727 | 2466 | sky2_le_error(hw, 0, Q_XA1, TX_RING_SIZE); |
d257924e | 2467 | |
1e5f1283 | 2468 | if (status & Y2_IS_CHK_TXA2) |
40b01727 SH |
2469 | sky2_le_error(hw, 1, Q_XA2, TX_RING_SIZE); |
2470 | } | |
2471 | ||
2472 | static int sky2_poll(struct net_device *dev0, int *budget) | |
2473 | { | |
2474 | struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw; | |
5c11ce70 | 2475 | int work_done; |
40b01727 SH |
2476 | u32 status = sky2_read32(hw, B0_Y2_SP_EISR); |
2477 | ||
2478 | if (unlikely(status & Y2_IS_ERROR)) | |
2479 | sky2_err_intr(hw, status); | |
2480 | ||
2481 | if (status & Y2_IS_IRQ_PHY1) | |
2482 | sky2_phy_intr(hw, 0); | |
2483 | ||
2484 | if (status & Y2_IS_IRQ_PHY2) | |
2485 | sky2_phy_intr(hw, 1); | |
cd28ab6a | 2486 | |
5c11ce70 SH |
2487 | work_done = sky2_status_intr(hw, min(dev0->quota, *budget)); |
2488 | *budget -= work_done; | |
2489 | dev0->quota -= work_done; | |
86fba634 | 2490 | |
5c11ce70 SH |
2491 | /* More work? */ |
2492 | if (hw->st_idx != sky2_read16(hw, STAT_PUT_IDX)) | |
1e5f1283 | 2493 | return 1; |
5c11ce70 SH |
2494 | |
2495 | /* Bug/Errata workaround? | |
2496 | * Need to kick the TX irq moderation timer. | |
2497 | */ | |
2498 | if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_START) { | |
2499 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP); | |
2500 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); | |
fe2a24df | 2501 | } |
5c11ce70 SH |
2502 | netif_rx_complete(dev0); |
2503 | ||
2504 | sky2_read32(hw, B0_Y2_SP_LISR); | |
2505 | return 0; | |
e07b1aa8 SH |
2506 | } |
2507 | ||
7d12e780 | 2508 | static irqreturn_t sky2_intr(int irq, void *dev_id) |
e07b1aa8 SH |
2509 | { |
2510 | struct sky2_hw *hw = dev_id; | |
2511 | struct net_device *dev0 = hw->dev[0]; | |
2512 | u32 status; | |
2513 | ||
2514 | /* Reading this mask interrupts as side effect */ | |
2515 | status = sky2_read32(hw, B0_Y2_SP_ISRC2); | |
2516 | if (status == 0 || status == ~0) | |
2517 | return IRQ_NONE; | |
793b883e | 2518 | |
e07b1aa8 SH |
2519 | prefetch(&hw->st_le[hw->st_idx]); |
2520 | if (likely(__netif_rx_schedule_prep(dev0))) | |
2521 | __netif_rx_schedule(dev0); | |
793b883e | 2522 | |
cd28ab6a SH |
2523 | return IRQ_HANDLED; |
2524 | } | |
2525 | ||
2526 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2527 | static void sky2_netpoll(struct net_device *dev) | |
2528 | { | |
2529 | struct sky2_port *sky2 = netdev_priv(dev); | |
88d11360 | 2530 | struct net_device *dev0 = sky2->hw->dev[0]; |
cd28ab6a | 2531 | |
88d11360 SH |
2532 | if (netif_running(dev) && __netif_rx_schedule_prep(dev0)) |
2533 | __netif_rx_schedule(dev0); | |
cd28ab6a SH |
2534 | } |
2535 | #endif | |
2536 | ||
2537 | /* Chip internal frequency for clock calculations */ | |
fb17358f | 2538 | static inline u32 sky2_mhz(const struct sky2_hw *hw) |
cd28ab6a | 2539 | { |
793b883e | 2540 | switch (hw->chip_id) { |
cd28ab6a | 2541 | case CHIP_ID_YUKON_EC: |
5a5b1ea0 | 2542 | case CHIP_ID_YUKON_EC_U: |
93745494 | 2543 | case CHIP_ID_YUKON_EX: |
fb17358f | 2544 | return 125; /* 125 Mhz */ |
cd28ab6a | 2545 | case CHIP_ID_YUKON_FE: |
fb17358f | 2546 | return 100; /* 100 Mhz */ |
793b883e | 2547 | default: /* YUKON_XL */ |
fb17358f | 2548 | return 156; /* 156 Mhz */ |
cd28ab6a SH |
2549 | } |
2550 | } | |
2551 | ||
fb17358f | 2552 | static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us) |
cd28ab6a | 2553 | { |
fb17358f | 2554 | return sky2_mhz(hw) * us; |
cd28ab6a SH |
2555 | } |
2556 | ||
fb17358f | 2557 | static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk) |
cd28ab6a | 2558 | { |
fb17358f | 2559 | return clk / sky2_mhz(hw); |
cd28ab6a SH |
2560 | } |
2561 | ||
fb17358f | 2562 | |
e3173832 | 2563 | static int __devinit sky2_init(struct sky2_hw *hw) |
cd28ab6a | 2564 | { |
b89165f2 | 2565 | u8 t8; |
cd28ab6a | 2566 | |
451af335 SH |
2567 | /* Enable all clocks */ |
2568 | sky2_pci_write32(hw, PCI_DEV_REG3, 0); | |
2569 | ||
cd28ab6a | 2570 | sky2_write8(hw, B0_CTST, CS_RST_CLR); |
08c06d8a | 2571 | |
cd28ab6a SH |
2572 | hw->chip_id = sky2_read8(hw, B2_CHIP_ID); |
2573 | if (hw->chip_id < CHIP_ID_YUKON_XL || hw->chip_id > CHIP_ID_YUKON_FE) { | |
b02a9258 SH |
2574 | dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n", |
2575 | hw->chip_id); | |
cd28ab6a SH |
2576 | return -EOPNOTSUPP; |
2577 | } | |
2578 | ||
290d4de5 SH |
2579 | hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4; |
2580 | ||
2581 | /* This rev is really old, and requires untested workarounds */ | |
2582 | if (hw->chip_id == CHIP_ID_YUKON_EC && hw->chip_rev == CHIP_REV_YU_EC_A1) { | |
b02a9258 SH |
2583 | dev_err(&hw->pdev->dev, "unsupported revision Yukon-%s (0x%x) rev %d\n", |
2584 | yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL], | |
2585 | hw->chip_id, hw->chip_rev); | |
290d4de5 SH |
2586 | return -EOPNOTSUPP; |
2587 | } | |
2588 | ||
e3173832 SH |
2589 | hw->pmd_type = sky2_read8(hw, B2_PMD_TYP); |
2590 | hw->ports = 1; | |
2591 | t8 = sky2_read8(hw, B2_Y2_HW_RES); | |
2592 | if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) { | |
2593 | if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC)) | |
2594 | ++hw->ports; | |
2595 | } | |
2596 | ||
2597 | return 0; | |
2598 | } | |
2599 | ||
2600 | static void sky2_reset(struct sky2_hw *hw) | |
2601 | { | |
2602 | u16 status; | |
2603 | int i; | |
2604 | ||
cd28ab6a | 2605 | /* disable ASF */ |
4f44d8ba SH |
2606 | if (hw->chip_id == CHIP_ID_YUKON_EX) { |
2607 | status = sky2_read16(hw, HCU_CCSR); | |
2608 | status &= ~(HCU_CCSR_AHB_RST | HCU_CCSR_CPU_RST_MODE | | |
2609 | HCU_CCSR_UC_STATE_MSK); | |
2610 | sky2_write16(hw, HCU_CCSR, status); | |
2611 | } else | |
2612 | sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET); | |
2613 | sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE); | |
cd28ab6a SH |
2614 | |
2615 | /* do a SW reset */ | |
2616 | sky2_write8(hw, B0_CTST, CS_RST_SET); | |
2617 | sky2_write8(hw, B0_CTST, CS_RST_CLR); | |
2618 | ||
2619 | /* clear PCI errors, if any */ | |
56a645cc | 2620 | status = sky2_pci_read16(hw, PCI_STATUS); |
2d42d21f | 2621 | |
cd28ab6a | 2622 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); |
56a645cc SH |
2623 | sky2_pci_write16(hw, PCI_STATUS, status | PCI_STATUS_ERROR_BITS); |
2624 | ||
cd28ab6a SH |
2625 | |
2626 | sky2_write8(hw, B0_CTST, CS_MRST_CLR); | |
2627 | ||
2628 | /* clear any PEX errors */ | |
7bd656d1 SH |
2629 | if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP)) |
2630 | sky2_pci_write32(hw, PEX_UNC_ERR_STAT, 0xffffffffUL); | |
2631 | ||
cd28ab6a | 2632 | |
ae306cca | 2633 | sky2_power_on(hw); |
cd28ab6a SH |
2634 | |
2635 | for (i = 0; i < hw->ports; i++) { | |
2636 | sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET); | |
2637 | sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR); | |
69161611 SH |
2638 | |
2639 | if (hw->chip_id == CHIP_ID_YUKON_EX) | |
2640 | sky2_write16(hw, SK_REG(i, GMAC_CTRL), | |
2641 | GMC_BYP_MACSECRX_ON | GMC_BYP_MACSECTX_ON | |
2642 | | GMC_BYP_RETR_ON); | |
cd28ab6a SH |
2643 | } |
2644 | ||
2645 | sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); | |
2646 | ||
793b883e SH |
2647 | /* Clear I2C IRQ noise */ |
2648 | sky2_write32(hw, B2_I2C_IRQ, 1); | |
cd28ab6a SH |
2649 | |
2650 | /* turn off hardware timer (unused) */ | |
2651 | sky2_write8(hw, B2_TI_CTRL, TIM_STOP); | |
2652 | sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ); | |
793b883e | 2653 | |
cd28ab6a SH |
2654 | sky2_write8(hw, B0_Y2LED, LED_STAT_ON); |
2655 | ||
69634ee7 SH |
2656 | /* Turn off descriptor polling */ |
2657 | sky2_write32(hw, B28_DPT_CTRL, DPT_STOP); | |
cd28ab6a SH |
2658 | |
2659 | /* Turn off receive timestamp */ | |
2660 | sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP); | |
793b883e | 2661 | sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); |
cd28ab6a SH |
2662 | |
2663 | /* enable the Tx Arbiters */ | |
2664 | for (i = 0; i < hw->ports; i++) | |
2665 | sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB); | |
2666 | ||
2667 | /* Initialize ram interface */ | |
2668 | for (i = 0; i < hw->ports; i++) { | |
793b883e | 2669 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR); |
cd28ab6a SH |
2670 | |
2671 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53); | |
2672 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53); | |
2673 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53); | |
2674 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53); | |
2675 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53); | |
2676 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53); | |
2677 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53); | |
2678 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53); | |
2679 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53); | |
2680 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53); | |
2681 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53); | |
2682 | sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53); | |
2683 | } | |
2684 | ||
7bd656d1 | 2685 | sky2_write32(hw, B0_HWE_IMSK, Y2_HWE_ALL_MASK); |
cd28ab6a | 2686 | |
cd28ab6a | 2687 | for (i = 0; i < hw->ports; i++) |
d3bcfbeb | 2688 | sky2_gmac_reset(hw, i); |
cd28ab6a | 2689 | |
cd28ab6a SH |
2690 | memset(hw->st_le, 0, STATUS_LE_BYTES); |
2691 | hw->st_idx = 0; | |
2692 | ||
2693 | sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET); | |
2694 | sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR); | |
2695 | ||
2696 | sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma); | |
793b883e | 2697 | sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32); |
cd28ab6a SH |
2698 | |
2699 | /* Set the list last index */ | |
793b883e | 2700 | sky2_write16(hw, STAT_LAST_IDX, STATUS_RING_SIZE - 1); |
cd28ab6a | 2701 | |
290d4de5 SH |
2702 | sky2_write16(hw, STAT_TX_IDX_TH, 10); |
2703 | sky2_write8(hw, STAT_FIFO_WM, 16); | |
cd28ab6a | 2704 | |
290d4de5 SH |
2705 | /* set Status-FIFO ISR watermark */ |
2706 | if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0) | |
2707 | sky2_write8(hw, STAT_FIFO_ISR_WM, 4); | |
2708 | else | |
2709 | sky2_write8(hw, STAT_FIFO_ISR_WM, 16); | |
cd28ab6a | 2710 | |
290d4de5 | 2711 | sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 1000)); |
77b3d6a2 SH |
2712 | sky2_write32(hw, STAT_ISR_TIMER_INI, sky2_us2clk(hw, 20)); |
2713 | sky2_write32(hw, STAT_LEV_TIMER_INI, sky2_us2clk(hw, 100)); | |
cd28ab6a | 2714 | |
793b883e | 2715 | /* enable status unit */ |
cd28ab6a SH |
2716 | sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON); |
2717 | ||
2718 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); | |
2719 | sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START); | |
2720 | sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START); | |
e3173832 SH |
2721 | } |
2722 | ||
81906791 SH |
2723 | static void sky2_restart(struct work_struct *work) |
2724 | { | |
2725 | struct sky2_hw *hw = container_of(work, struct sky2_hw, restart_work); | |
2726 | struct net_device *dev; | |
2727 | int i, err; | |
2728 | ||
81906791 SH |
2729 | del_timer_sync(&hw->idle_timer); |
2730 | ||
2731 | rtnl_lock(); | |
2732 | sky2_write32(hw, B0_IMSK, 0); | |
2733 | sky2_read32(hw, B0_IMSK); | |
2734 | ||
2735 | netif_poll_disable(hw->dev[0]); | |
2736 | ||
2737 | for (i = 0; i < hw->ports; i++) { | |
2738 | dev = hw->dev[i]; | |
2739 | if (netif_running(dev)) | |
2740 | sky2_down(dev); | |
2741 | } | |
2742 | ||
2743 | sky2_reset(hw); | |
2744 | sky2_write32(hw, B0_IMSK, Y2_IS_BASE); | |
2745 | netif_poll_enable(hw->dev[0]); | |
2746 | ||
2747 | for (i = 0; i < hw->ports; i++) { | |
2748 | dev = hw->dev[i]; | |
2749 | if (netif_running(dev)) { | |
2750 | err = sky2_up(dev); | |
2751 | if (err) { | |
2752 | printk(KERN_INFO PFX "%s: could not restart %d\n", | |
2753 | dev->name, err); | |
2754 | dev_close(dev); | |
2755 | } | |
2756 | } | |
2757 | } | |
2758 | ||
2759 | sky2_idle_start(hw); | |
2760 | ||
2761 | rtnl_unlock(); | |
2762 | } | |
2763 | ||
e3173832 SH |
2764 | static inline u8 sky2_wol_supported(const struct sky2_hw *hw) |
2765 | { | |
2766 | return sky2_is_copper(hw) ? (WAKE_PHY | WAKE_MAGIC) : 0; | |
2767 | } | |
2768 | ||
2769 | static void sky2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
2770 | { | |
2771 | const struct sky2_port *sky2 = netdev_priv(dev); | |
2772 | ||
2773 | wol->supported = sky2_wol_supported(sky2->hw); | |
2774 | wol->wolopts = sky2->wol; | |
2775 | } | |
2776 | ||
2777 | static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
2778 | { | |
2779 | struct sky2_port *sky2 = netdev_priv(dev); | |
2780 | struct sky2_hw *hw = sky2->hw; | |
cd28ab6a | 2781 | |
e3173832 SH |
2782 | if (wol->wolopts & ~sky2_wol_supported(sky2->hw)) |
2783 | return -EOPNOTSUPP; | |
2784 | ||
2785 | sky2->wol = wol->wolopts; | |
2786 | ||
69161611 | 2787 | if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) |
e3173832 SH |
2788 | sky2_write32(hw, B0_CTST, sky2->wol |
2789 | ? Y2_HW_WOL_ON : Y2_HW_WOL_OFF); | |
2790 | ||
2791 | if (!netif_running(dev)) | |
2792 | sky2_wol_init(sky2); | |
cd28ab6a SH |
2793 | return 0; |
2794 | } | |
2795 | ||
28bd181a | 2796 | static u32 sky2_supported_modes(const struct sky2_hw *hw) |
cd28ab6a | 2797 | { |
b89165f2 SH |
2798 | if (sky2_is_copper(hw)) { |
2799 | u32 modes = SUPPORTED_10baseT_Half | |
2800 | | SUPPORTED_10baseT_Full | |
2801 | | SUPPORTED_100baseT_Half | |
2802 | | SUPPORTED_100baseT_Full | |
2803 | | SUPPORTED_Autoneg | SUPPORTED_TP; | |
cd28ab6a SH |
2804 | |
2805 | if (hw->chip_id != CHIP_ID_YUKON_FE) | |
2806 | modes |= SUPPORTED_1000baseT_Half | |
b89165f2 SH |
2807 | | SUPPORTED_1000baseT_Full; |
2808 | return modes; | |
cd28ab6a | 2809 | } else |
b89165f2 SH |
2810 | return SUPPORTED_1000baseT_Half |
2811 | | SUPPORTED_1000baseT_Full | |
2812 | | SUPPORTED_Autoneg | |
2813 | | SUPPORTED_FIBRE; | |
cd28ab6a SH |
2814 | } |
2815 | ||
793b883e | 2816 | static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
cd28ab6a SH |
2817 | { |
2818 | struct sky2_port *sky2 = netdev_priv(dev); | |
2819 | struct sky2_hw *hw = sky2->hw; | |
2820 | ||
2821 | ecmd->transceiver = XCVR_INTERNAL; | |
2822 | ecmd->supported = sky2_supported_modes(hw); | |
2823 | ecmd->phy_address = PHY_ADDR_MARV; | |
b89165f2 | 2824 | if (sky2_is_copper(hw)) { |
cd28ab6a | 2825 | ecmd->supported = SUPPORTED_10baseT_Half |
793b883e SH |
2826 | | SUPPORTED_10baseT_Full |
2827 | | SUPPORTED_100baseT_Half | |
2828 | | SUPPORTED_100baseT_Full | |
2829 | | SUPPORTED_1000baseT_Half | |
2830 | | SUPPORTED_1000baseT_Full | |
2831 | | SUPPORTED_Autoneg | SUPPORTED_TP; | |
cd28ab6a | 2832 | ecmd->port = PORT_TP; |
b89165f2 SH |
2833 | ecmd->speed = sky2->speed; |
2834 | } else { | |
2835 | ecmd->speed = SPEED_1000; | |
cd28ab6a | 2836 | ecmd->port = PORT_FIBRE; |
b89165f2 | 2837 | } |
cd28ab6a SH |
2838 | |
2839 | ecmd->advertising = sky2->advertising; | |
2840 | ecmd->autoneg = sky2->autoneg; | |
cd28ab6a SH |
2841 | ecmd->duplex = sky2->duplex; |
2842 | return 0; | |
2843 | } | |
2844 | ||
2845 | static int sky2_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
2846 | { | |
2847 | struct sky2_port *sky2 = netdev_priv(dev); | |
2848 | const struct sky2_hw *hw = sky2->hw; | |
2849 | u32 supported = sky2_supported_modes(hw); | |
2850 | ||
2851 | if (ecmd->autoneg == AUTONEG_ENABLE) { | |
2852 | ecmd->advertising = supported; | |
2853 | sky2->duplex = -1; | |
2854 | sky2->speed = -1; | |
2855 | } else { | |
2856 | u32 setting; | |
2857 | ||
793b883e | 2858 | switch (ecmd->speed) { |
cd28ab6a SH |
2859 | case SPEED_1000: |
2860 | if (ecmd->duplex == DUPLEX_FULL) | |
2861 | setting = SUPPORTED_1000baseT_Full; | |
2862 | else if (ecmd->duplex == DUPLEX_HALF) | |
2863 | setting = SUPPORTED_1000baseT_Half; | |
2864 | else | |
2865 | return -EINVAL; | |
2866 | break; | |
2867 | case SPEED_100: | |
2868 | if (ecmd->duplex == DUPLEX_FULL) | |
2869 | setting = SUPPORTED_100baseT_Full; | |
2870 | else if (ecmd->duplex == DUPLEX_HALF) | |
2871 | setting = SUPPORTED_100baseT_Half; | |
2872 | else | |
2873 | return -EINVAL; | |
2874 | break; | |
2875 | ||
2876 | case SPEED_10: | |
2877 | if (ecmd->duplex == DUPLEX_FULL) | |
2878 | setting = SUPPORTED_10baseT_Full; | |
2879 | else if (ecmd->duplex == DUPLEX_HALF) | |
2880 | setting = SUPPORTED_10baseT_Half; | |
2881 | else | |
2882 | return -EINVAL; | |
2883 | break; | |
2884 | default: | |
2885 | return -EINVAL; | |
2886 | } | |
2887 | ||
2888 | if ((setting & supported) == 0) | |
2889 | return -EINVAL; | |
2890 | ||
2891 | sky2->speed = ecmd->speed; | |
2892 | sky2->duplex = ecmd->duplex; | |
2893 | } | |
2894 | ||
2895 | sky2->autoneg = ecmd->autoneg; | |
2896 | sky2->advertising = ecmd->advertising; | |
2897 | ||
1b537565 SH |
2898 | if (netif_running(dev)) |
2899 | sky2_phy_reinit(sky2); | |
cd28ab6a SH |
2900 | |
2901 | return 0; | |
2902 | } | |
2903 | ||
2904 | static void sky2_get_drvinfo(struct net_device *dev, | |
2905 | struct ethtool_drvinfo *info) | |
2906 | { | |
2907 | struct sky2_port *sky2 = netdev_priv(dev); | |
2908 | ||
2909 | strcpy(info->driver, DRV_NAME); | |
2910 | strcpy(info->version, DRV_VERSION); | |
2911 | strcpy(info->fw_version, "N/A"); | |
2912 | strcpy(info->bus_info, pci_name(sky2->hw->pdev)); | |
2913 | } | |
2914 | ||
2915 | static const struct sky2_stat { | |
793b883e SH |
2916 | char name[ETH_GSTRING_LEN]; |
2917 | u16 offset; | |
cd28ab6a SH |
2918 | } sky2_stats[] = { |
2919 | { "tx_bytes", GM_TXO_OK_HI }, | |
2920 | { "rx_bytes", GM_RXO_OK_HI }, | |
2921 | { "tx_broadcast", GM_TXF_BC_OK }, | |
2922 | { "rx_broadcast", GM_RXF_BC_OK }, | |
2923 | { "tx_multicast", GM_TXF_MC_OK }, | |
2924 | { "rx_multicast", GM_RXF_MC_OK }, | |
2925 | { "tx_unicast", GM_TXF_UC_OK }, | |
2926 | { "rx_unicast", GM_RXF_UC_OK }, | |
2927 | { "tx_mac_pause", GM_TXF_MPAUSE }, | |
2928 | { "rx_mac_pause", GM_RXF_MPAUSE }, | |
eadfa7dd | 2929 | { "collisions", GM_TXF_COL }, |
cd28ab6a SH |
2930 | { "late_collision",GM_TXF_LAT_COL }, |
2931 | { "aborted", GM_TXF_ABO_COL }, | |
eadfa7dd | 2932 | { "single_collisions", GM_TXF_SNG_COL }, |
cd28ab6a | 2933 | { "multi_collisions", GM_TXF_MUL_COL }, |
eadfa7dd | 2934 | |
d2604540 | 2935 | { "rx_short", GM_RXF_SHT }, |
cd28ab6a | 2936 | { "rx_runt", GM_RXE_FRAG }, |
eadfa7dd SH |
2937 | { "rx_64_byte_packets", GM_RXF_64B }, |
2938 | { "rx_65_to_127_byte_packets", GM_RXF_127B }, | |
2939 | { "rx_128_to_255_byte_packets", GM_RXF_255B }, | |
2940 | { "rx_256_to_511_byte_packets", GM_RXF_511B }, | |
2941 | { "rx_512_to_1023_byte_packets", GM_RXF_1023B }, | |
2942 | { "rx_1024_to_1518_byte_packets", GM_RXF_1518B }, | |
2943 | { "rx_1518_to_max_byte_packets", GM_RXF_MAX_SZ }, | |
cd28ab6a | 2944 | { "rx_too_long", GM_RXF_LNG_ERR }, |
eadfa7dd SH |
2945 | { "rx_fifo_overflow", GM_RXE_FIFO_OV }, |
2946 | { "rx_jabber", GM_RXF_JAB_PKT }, | |
cd28ab6a | 2947 | { "rx_fcs_error", GM_RXF_FCS_ERR }, |
eadfa7dd SH |
2948 | |
2949 | { "tx_64_byte_packets", GM_TXF_64B }, | |
2950 | { "tx_65_to_127_byte_packets", GM_TXF_127B }, | |
2951 | { "tx_128_to_255_byte_packets", GM_TXF_255B }, | |
2952 | { "tx_256_to_511_byte_packets", GM_TXF_511B }, | |
2953 | { "tx_512_to_1023_byte_packets", GM_TXF_1023B }, | |
2954 | { "tx_1024_to_1518_byte_packets", GM_TXF_1518B }, | |
2955 | { "tx_1519_to_max_byte_packets", GM_TXF_MAX_SZ }, | |
2956 | { "tx_fifo_underrun", GM_TXE_FIFO_UR }, | |
cd28ab6a SH |
2957 | }; |
2958 | ||
cd28ab6a SH |
2959 | static u32 sky2_get_rx_csum(struct net_device *dev) |
2960 | { | |
2961 | struct sky2_port *sky2 = netdev_priv(dev); | |
2962 | ||
2963 | return sky2->rx_csum; | |
2964 | } | |
2965 | ||
2966 | static int sky2_set_rx_csum(struct net_device *dev, u32 data) | |
2967 | { | |
2968 | struct sky2_port *sky2 = netdev_priv(dev); | |
2969 | ||
2970 | sky2->rx_csum = data; | |
793b883e | 2971 | |
cd28ab6a SH |
2972 | sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR), |
2973 | data ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM); | |
2974 | ||
2975 | return 0; | |
2976 | } | |
2977 | ||
2978 | static u32 sky2_get_msglevel(struct net_device *netdev) | |
2979 | { | |
2980 | struct sky2_port *sky2 = netdev_priv(netdev); | |
2981 | return sky2->msg_enable; | |
2982 | } | |
2983 | ||
9a7ae0a9 SH |
2984 | static int sky2_nway_reset(struct net_device *dev) |
2985 | { | |
2986 | struct sky2_port *sky2 = netdev_priv(dev); | |
9a7ae0a9 | 2987 | |
16ad91e1 | 2988 | if (!netif_running(dev) || sky2->autoneg != AUTONEG_ENABLE) |
9a7ae0a9 SH |
2989 | return -EINVAL; |
2990 | ||
1b537565 | 2991 | sky2_phy_reinit(sky2); |
9a7ae0a9 SH |
2992 | |
2993 | return 0; | |
2994 | } | |
2995 | ||
793b883e | 2996 | static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count) |
cd28ab6a SH |
2997 | { |
2998 | struct sky2_hw *hw = sky2->hw; | |
2999 | unsigned port = sky2->port; | |
3000 | int i; | |
3001 | ||
3002 | data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32 | |
793b883e | 3003 | | (u64) gma_read32(hw, port, GM_TXO_OK_LO); |
cd28ab6a | 3004 | data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32 |
793b883e | 3005 | | (u64) gma_read32(hw, port, GM_RXO_OK_LO); |
cd28ab6a | 3006 | |
793b883e | 3007 | for (i = 2; i < count; i++) |
cd28ab6a SH |
3008 | data[i] = (u64) gma_read32(hw, port, sky2_stats[i].offset); |
3009 | } | |
3010 | ||
cd28ab6a SH |
3011 | static void sky2_set_msglevel(struct net_device *netdev, u32 value) |
3012 | { | |
3013 | struct sky2_port *sky2 = netdev_priv(netdev); | |
3014 | sky2->msg_enable = value; | |
3015 | } | |
3016 | ||
3017 | static int sky2_get_stats_count(struct net_device *dev) | |
3018 | { | |
3019 | return ARRAY_SIZE(sky2_stats); | |
3020 | } | |
3021 | ||
3022 | static void sky2_get_ethtool_stats(struct net_device *dev, | |
793b883e | 3023 | struct ethtool_stats *stats, u64 * data) |
cd28ab6a SH |
3024 | { |
3025 | struct sky2_port *sky2 = netdev_priv(dev); | |
3026 | ||
793b883e | 3027 | sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats)); |
cd28ab6a SH |
3028 | } |
3029 | ||
793b883e | 3030 | static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data) |
cd28ab6a SH |
3031 | { |
3032 | int i; | |
3033 | ||
3034 | switch (stringset) { | |
3035 | case ETH_SS_STATS: | |
3036 | for (i = 0; i < ARRAY_SIZE(sky2_stats); i++) | |
3037 | memcpy(data + i * ETH_GSTRING_LEN, | |
3038 | sky2_stats[i].name, ETH_GSTRING_LEN); | |
3039 | break; | |
3040 | } | |
3041 | } | |
3042 | ||
cd28ab6a SH |
3043 | static struct net_device_stats *sky2_get_stats(struct net_device *dev) |
3044 | { | |
3045 | struct sky2_port *sky2 = netdev_priv(dev); | |
cd28ab6a SH |
3046 | return &sky2->net_stats; |
3047 | } | |
3048 | ||
3049 | static int sky2_set_mac_address(struct net_device *dev, void *p) | |
3050 | { | |
3051 | struct sky2_port *sky2 = netdev_priv(dev); | |
a8ab1ec0 SH |
3052 | struct sky2_hw *hw = sky2->hw; |
3053 | unsigned port = sky2->port; | |
3054 | const struct sockaddr *addr = p; | |
cd28ab6a SH |
3055 | |
3056 | if (!is_valid_ether_addr(addr->sa_data)) | |
3057 | return -EADDRNOTAVAIL; | |
3058 | ||
cd28ab6a | 3059 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); |
a8ab1ec0 | 3060 | memcpy_toio(hw->regs + B2_MAC_1 + port * 8, |
cd28ab6a | 3061 | dev->dev_addr, ETH_ALEN); |
a8ab1ec0 | 3062 | memcpy_toio(hw->regs + B2_MAC_2 + port * 8, |
cd28ab6a | 3063 | dev->dev_addr, ETH_ALEN); |
1b537565 | 3064 | |
a8ab1ec0 SH |
3065 | /* virtual address for data */ |
3066 | gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr); | |
3067 | ||
3068 | /* physical address: used for pause frames */ | |
3069 | gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr); | |
1b537565 SH |
3070 | |
3071 | return 0; | |
cd28ab6a SH |
3072 | } |
3073 | ||
a052b52f SH |
3074 | static void inline sky2_add_filter(u8 filter[8], const u8 *addr) |
3075 | { | |
3076 | u32 bit; | |
3077 | ||
3078 | bit = ether_crc(ETH_ALEN, addr) & 63; | |
3079 | filter[bit >> 3] |= 1 << (bit & 7); | |
3080 | } | |
3081 | ||
cd28ab6a SH |
3082 | static void sky2_set_multicast(struct net_device *dev) |
3083 | { | |
3084 | struct sky2_port *sky2 = netdev_priv(dev); | |
3085 | struct sky2_hw *hw = sky2->hw; | |
3086 | unsigned port = sky2->port; | |
3087 | struct dev_mc_list *list = dev->mc_list; | |
3088 | u16 reg; | |
3089 | u8 filter[8]; | |
a052b52f SH |
3090 | int rx_pause; |
3091 | static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 }; | |
cd28ab6a | 3092 | |
a052b52f | 3093 | rx_pause = (sky2->flow_status == FC_RX || sky2->flow_status == FC_BOTH); |
cd28ab6a SH |
3094 | memset(filter, 0, sizeof(filter)); |
3095 | ||
3096 | reg = gma_read16(hw, port, GM_RX_CTRL); | |
3097 | reg |= GM_RXCR_UCF_ENA; | |
3098 | ||
d571b694 | 3099 | if (dev->flags & IFF_PROMISC) /* promiscuous */ |
cd28ab6a | 3100 | reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); |
a052b52f | 3101 | else if (dev->flags & IFF_ALLMULTI) |
cd28ab6a | 3102 | memset(filter, 0xff, sizeof(filter)); |
a052b52f | 3103 | else if (dev->mc_count == 0 && !rx_pause) |
cd28ab6a SH |
3104 | reg &= ~GM_RXCR_MCF_ENA; |
3105 | else { | |
3106 | int i; | |
3107 | reg |= GM_RXCR_MCF_ENA; | |
3108 | ||
a052b52f SH |
3109 | if (rx_pause) |
3110 | sky2_add_filter(filter, pause_mc_addr); | |
3111 | ||
3112 | for (i = 0; list && i < dev->mc_count; i++, list = list->next) | |
3113 | sky2_add_filter(filter, list->dmi_addr); | |
cd28ab6a SH |
3114 | } |
3115 | ||
cd28ab6a | 3116 | gma_write16(hw, port, GM_MC_ADDR_H1, |
793b883e | 3117 | (u16) filter[0] | ((u16) filter[1] << 8)); |
cd28ab6a | 3118 | gma_write16(hw, port, GM_MC_ADDR_H2, |
793b883e | 3119 | (u16) filter[2] | ((u16) filter[3] << 8)); |
cd28ab6a | 3120 | gma_write16(hw, port, GM_MC_ADDR_H3, |
793b883e | 3121 | (u16) filter[4] | ((u16) filter[5] << 8)); |
cd28ab6a | 3122 | gma_write16(hw, port, GM_MC_ADDR_H4, |
793b883e | 3123 | (u16) filter[6] | ((u16) filter[7] << 8)); |
cd28ab6a SH |
3124 | |
3125 | gma_write16(hw, port, GM_RX_CTRL, reg); | |
3126 | } | |
3127 | ||
3128 | /* Can have one global because blinking is controlled by | |
3129 | * ethtool and that is always under RTNL mutex | |
3130 | */ | |
91c86df5 | 3131 | static void sky2_led(struct sky2_hw *hw, unsigned port, int on) |
cd28ab6a | 3132 | { |
793b883e SH |
3133 | u16 pg; |
3134 | ||
793b883e SH |
3135 | switch (hw->chip_id) { |
3136 | case CHIP_ID_YUKON_XL: | |
3137 | pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
3138 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
3139 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, | |
3140 | on ? (PHY_M_LEDC_LOS_CTRL(1) | | |
3141 | PHY_M_LEDC_INIT_CTRL(7) | | |
3142 | PHY_M_LEDC_STA1_CTRL(7) | | |
3143 | PHY_M_LEDC_STA0_CTRL(7)) | |
3144 | : 0); | |
3145 | ||
3146 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
3147 | break; | |
3148 | ||
3149 | default: | |
3150 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); | |
0efdf262 SH |
3151 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, |
3152 | on ? PHY_M_LED_ALL : 0); | |
793b883e | 3153 | } |
cd28ab6a SH |
3154 | } |
3155 | ||
3156 | /* blink LED's for finding board */ | |
3157 | static int sky2_phys_id(struct net_device *dev, u32 data) | |
3158 | { | |
3159 | struct sky2_port *sky2 = netdev_priv(dev); | |
3160 | struct sky2_hw *hw = sky2->hw; | |
3161 | unsigned port = sky2->port; | |
793b883e | 3162 | u16 ledctrl, ledover = 0; |
cd28ab6a | 3163 | long ms; |
91c86df5 | 3164 | int interrupted; |
cd28ab6a SH |
3165 | int onoff = 1; |
3166 | ||
793b883e | 3167 | if (!data || data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ)) |
cd28ab6a SH |
3168 | ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT); |
3169 | else | |
3170 | ms = data * 1000; | |
3171 | ||
3172 | /* save initial values */ | |
e07b1aa8 | 3173 | spin_lock_bh(&sky2->phy_lock); |
793b883e SH |
3174 | if (hw->chip_id == CHIP_ID_YUKON_XL) { |
3175 | u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
3176 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
3177 | ledctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); | |
3178 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
3179 | } else { | |
3180 | ledctrl = gm_phy_read(hw, port, PHY_MARV_LED_CTRL); | |
3181 | ledover = gm_phy_read(hw, port, PHY_MARV_LED_OVER); | |
3182 | } | |
cd28ab6a | 3183 | |
91c86df5 SH |
3184 | interrupted = 0; |
3185 | while (!interrupted && ms > 0) { | |
cd28ab6a SH |
3186 | sky2_led(hw, port, onoff); |
3187 | onoff = !onoff; | |
3188 | ||
e07b1aa8 | 3189 | spin_unlock_bh(&sky2->phy_lock); |
91c86df5 | 3190 | interrupted = msleep_interruptible(250); |
e07b1aa8 | 3191 | spin_lock_bh(&sky2->phy_lock); |
91c86df5 | 3192 | |
cd28ab6a SH |
3193 | ms -= 250; |
3194 | } | |
3195 | ||
3196 | /* resume regularly scheduled programming */ | |
793b883e SH |
3197 | if (hw->chip_id == CHIP_ID_YUKON_XL) { |
3198 | u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); | |
3199 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); | |
3200 | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ledctrl); | |
3201 | gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); | |
3202 | } else { | |
3203 | gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl); | |
3204 | gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover); | |
3205 | } | |
e07b1aa8 | 3206 | spin_unlock_bh(&sky2->phy_lock); |
cd28ab6a SH |
3207 | |
3208 | return 0; | |
3209 | } | |
3210 | ||
3211 | static void sky2_get_pauseparam(struct net_device *dev, | |
3212 | struct ethtool_pauseparam *ecmd) | |
3213 | { | |
3214 | struct sky2_port *sky2 = netdev_priv(dev); | |
3215 | ||
16ad91e1 SH |
3216 | switch (sky2->flow_mode) { |
3217 | case FC_NONE: | |
3218 | ecmd->tx_pause = ecmd->rx_pause = 0; | |
3219 | break; | |
3220 | case FC_TX: | |
3221 | ecmd->tx_pause = 1, ecmd->rx_pause = 0; | |
3222 | break; | |
3223 | case FC_RX: | |
3224 | ecmd->tx_pause = 0, ecmd->rx_pause = 1; | |
3225 | break; | |
3226 | case FC_BOTH: | |
3227 | ecmd->tx_pause = ecmd->rx_pause = 1; | |
3228 | } | |
3229 | ||
cd28ab6a SH |
3230 | ecmd->autoneg = sky2->autoneg; |
3231 | } | |
3232 | ||
3233 | static int sky2_set_pauseparam(struct net_device *dev, | |
3234 | struct ethtool_pauseparam *ecmd) | |
3235 | { | |
3236 | struct sky2_port *sky2 = netdev_priv(dev); | |
cd28ab6a SH |
3237 | |
3238 | sky2->autoneg = ecmd->autoneg; | |
16ad91e1 | 3239 | sky2->flow_mode = sky2_flow(ecmd->rx_pause, ecmd->tx_pause); |
cd28ab6a | 3240 | |
16ad91e1 SH |
3241 | if (netif_running(dev)) |
3242 | sky2_phy_reinit(sky2); | |
cd28ab6a | 3243 | |
2eaba1a2 | 3244 | return 0; |
cd28ab6a SH |
3245 | } |
3246 | ||
fb17358f SH |
3247 | static int sky2_get_coalesce(struct net_device *dev, |
3248 | struct ethtool_coalesce *ecmd) | |
3249 | { | |
3250 | struct sky2_port *sky2 = netdev_priv(dev); | |
3251 | struct sky2_hw *hw = sky2->hw; | |
3252 | ||
3253 | if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_STOP) | |
3254 | ecmd->tx_coalesce_usecs = 0; | |
3255 | else { | |
3256 | u32 clks = sky2_read32(hw, STAT_TX_TIMER_INI); | |
3257 | ecmd->tx_coalesce_usecs = sky2_clk2us(hw, clks); | |
3258 | } | |
3259 | ecmd->tx_max_coalesced_frames = sky2_read16(hw, STAT_TX_IDX_TH); | |
3260 | ||
3261 | if (sky2_read8(hw, STAT_LEV_TIMER_CTRL) == TIM_STOP) | |
3262 | ecmd->rx_coalesce_usecs = 0; | |
3263 | else { | |
3264 | u32 clks = sky2_read32(hw, STAT_LEV_TIMER_INI); | |
3265 | ecmd->rx_coalesce_usecs = sky2_clk2us(hw, clks); | |
3266 | } | |
3267 | ecmd->rx_max_coalesced_frames = sky2_read8(hw, STAT_FIFO_WM); | |
3268 | ||
3269 | if (sky2_read8(hw, STAT_ISR_TIMER_CTRL) == TIM_STOP) | |
3270 | ecmd->rx_coalesce_usecs_irq = 0; | |
3271 | else { | |
3272 | u32 clks = sky2_read32(hw, STAT_ISR_TIMER_INI); | |
3273 | ecmd->rx_coalesce_usecs_irq = sky2_clk2us(hw, clks); | |
3274 | } | |
3275 | ||
3276 | ecmd->rx_max_coalesced_frames_irq = sky2_read8(hw, STAT_FIFO_ISR_WM); | |
3277 | ||
3278 | return 0; | |
3279 | } | |
3280 | ||
3281 | /* Note: this affect both ports */ | |
3282 | static int sky2_set_coalesce(struct net_device *dev, | |
3283 | struct ethtool_coalesce *ecmd) | |
3284 | { | |
3285 | struct sky2_port *sky2 = netdev_priv(dev); | |
3286 | struct sky2_hw *hw = sky2->hw; | |
77b3d6a2 | 3287 | const u32 tmax = sky2_clk2us(hw, 0x0ffffff); |
fb17358f | 3288 | |
77b3d6a2 SH |
3289 | if (ecmd->tx_coalesce_usecs > tmax || |
3290 | ecmd->rx_coalesce_usecs > tmax || | |
3291 | ecmd->rx_coalesce_usecs_irq > tmax) | |
fb17358f SH |
3292 | return -EINVAL; |
3293 | ||
ff81fbbe | 3294 | if (ecmd->tx_max_coalesced_frames >= TX_RING_SIZE-1) |
fb17358f | 3295 | return -EINVAL; |
ff81fbbe | 3296 | if (ecmd->rx_max_coalesced_frames > RX_MAX_PENDING) |
fb17358f | 3297 | return -EINVAL; |
ff81fbbe | 3298 | if (ecmd->rx_max_coalesced_frames_irq >RX_MAX_PENDING) |
fb17358f SH |
3299 | return -EINVAL; |
3300 | ||
3301 | if (ecmd->tx_coalesce_usecs == 0) | |
3302 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP); | |
3303 | else { | |
3304 | sky2_write32(hw, STAT_TX_TIMER_INI, | |
3305 | sky2_us2clk(hw, ecmd->tx_coalesce_usecs)); | |
3306 | sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); | |
3307 | } | |
3308 | sky2_write16(hw, STAT_TX_IDX_TH, ecmd->tx_max_coalesced_frames); | |
3309 | ||
3310 | if (ecmd->rx_coalesce_usecs == 0) | |
3311 | sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_STOP); | |
3312 | else { | |
3313 | sky2_write32(hw, STAT_LEV_TIMER_INI, | |
3314 | sky2_us2clk(hw, ecmd->rx_coalesce_usecs)); | |
3315 | sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START); | |
3316 | } | |
3317 | sky2_write8(hw, STAT_FIFO_WM, ecmd->rx_max_coalesced_frames); | |
3318 | ||
3319 | if (ecmd->rx_coalesce_usecs_irq == 0) | |
3320 | sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_STOP); | |
3321 | else { | |
d28d4870 | 3322 | sky2_write32(hw, STAT_ISR_TIMER_INI, |
fb17358f SH |
3323 | sky2_us2clk(hw, ecmd->rx_coalesce_usecs_irq)); |
3324 | sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START); | |
3325 | } | |
3326 | sky2_write8(hw, STAT_FIFO_ISR_WM, ecmd->rx_max_coalesced_frames_irq); | |
3327 | return 0; | |
3328 | } | |
3329 | ||
793b883e SH |
3330 | static void sky2_get_ringparam(struct net_device *dev, |
3331 | struct ethtool_ringparam *ering) | |
3332 | { | |
3333 | struct sky2_port *sky2 = netdev_priv(dev); | |
3334 | ||
3335 | ering->rx_max_pending = RX_MAX_PENDING; | |
3336 | ering->rx_mini_max_pending = 0; | |
3337 | ering->rx_jumbo_max_pending = 0; | |
3338 | ering->tx_max_pending = TX_RING_SIZE - 1; | |
3339 | ||
3340 | ering->rx_pending = sky2->rx_pending; | |
3341 | ering->rx_mini_pending = 0; | |
3342 | ering->rx_jumbo_pending = 0; | |
3343 | ering->tx_pending = sky2->tx_pending; | |
3344 | } | |
3345 | ||
3346 | static int sky2_set_ringparam(struct net_device *dev, | |
3347 | struct ethtool_ringparam *ering) | |
3348 | { | |
3349 | struct sky2_port *sky2 = netdev_priv(dev); | |
3350 | int err = 0; | |
3351 | ||
3352 | if (ering->rx_pending > RX_MAX_PENDING || | |
3353 | ering->rx_pending < 8 || | |
3354 | ering->tx_pending < MAX_SKB_TX_LE || | |
3355 | ering->tx_pending > TX_RING_SIZE - 1) | |
3356 | return -EINVAL; | |
3357 | ||
3358 | if (netif_running(dev)) | |
3359 | sky2_down(dev); | |
3360 | ||
3361 | sky2->rx_pending = ering->rx_pending; | |
3362 | sky2->tx_pending = ering->tx_pending; | |
3363 | ||
1b537565 | 3364 | if (netif_running(dev)) { |
793b883e | 3365 | err = sky2_up(dev); |
1b537565 SH |
3366 | if (err) |
3367 | dev_close(dev); | |
6ed995bb SH |
3368 | else |
3369 | sky2_set_multicast(dev); | |
1b537565 | 3370 | } |
793b883e SH |
3371 | |
3372 | return err; | |
3373 | } | |
3374 | ||
793b883e SH |
3375 | static int sky2_get_regs_len(struct net_device *dev) |
3376 | { | |
6e4cbb34 | 3377 | return 0x4000; |
793b883e SH |
3378 | } |
3379 | ||
3380 | /* | |
3381 | * Returns copy of control register region | |
3ead5db7 | 3382 | * Note: ethtool_get_regs always provides full size (16k) buffer |
793b883e SH |
3383 | */ |
3384 | static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
3385 | void *p) | |
3386 | { | |
3387 | const struct sky2_port *sky2 = netdev_priv(dev); | |
793b883e | 3388 | const void __iomem *io = sky2->hw->regs; |
793b883e SH |
3389 | |
3390 | regs->version = 1; | |
6e4cbb34 | 3391 | memset(p, 0, regs->len); |
793b883e | 3392 | |
6e4cbb34 SH |
3393 | memcpy_fromio(p, io, B3_RAM_ADDR); |
3394 | ||
3ead5db7 SH |
3395 | /* skip diagnostic ram region */ |
3396 | memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1, 0x2000 - B3_RI_WTO_R1); | |
3397 | ||
3398 | /* copy GMAC registers */ | |
3399 | memcpy_fromio(p + BASE_GMAC_1, io + BASE_GMAC_1, 0x1000); | |
3400 | if (sky2->hw->ports > 1) | |
3401 | memcpy_fromio(p + BASE_GMAC_2, io + BASE_GMAC_2, 0x1000); | |
3402 | ||
793b883e | 3403 | } |
cd28ab6a | 3404 | |
b628ed98 SH |
3405 | /* In order to do Jumbo packets on these chips, need to turn off the |
3406 | * transmit store/forward. Therefore checksum offload won't work. | |
3407 | */ | |
3408 | static int no_tx_offload(struct net_device *dev) | |
3409 | { | |
3410 | const struct sky2_port *sky2 = netdev_priv(dev); | |
3411 | const struct sky2_hw *hw = sky2->hw; | |
3412 | ||
69161611 | 3413 | return dev->mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_EC_U; |
b628ed98 SH |
3414 | } |
3415 | ||
3416 | static int sky2_set_tx_csum(struct net_device *dev, u32 data) | |
3417 | { | |
3418 | if (data && no_tx_offload(dev)) | |
3419 | return -EINVAL; | |
3420 | ||
3421 | return ethtool_op_set_tx_csum(dev, data); | |
3422 | } | |
3423 | ||
3424 | ||
3425 | static int sky2_set_tso(struct net_device *dev, u32 data) | |
3426 | { | |
3427 | if (data && no_tx_offload(dev)) | |
3428 | return -EINVAL; | |
3429 | ||
3430 | return ethtool_op_set_tso(dev, data); | |
3431 | } | |
3432 | ||
f4331a6d SH |
3433 | static int sky2_get_eeprom_len(struct net_device *dev) |
3434 | { | |
3435 | struct sky2_port *sky2 = netdev_priv(dev); | |
3436 | u16 reg2; | |
3437 | ||
3438 | reg2 = sky2_pci_read32(sky2->hw, PCI_DEV_REG2); | |
3439 | return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8); | |
3440 | } | |
3441 | ||
3442 | static u32 sky2_vpd_read(struct sky2_hw *hw, int cap, u16 offset) | |
3443 | { | |
3444 | sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset); | |
3445 | ||
3446 | while (!(sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F)) | |
3447 | cpu_relax(); | |
3448 | return sky2_pci_read32(hw, cap + PCI_VPD_DATA); | |
3449 | } | |
3450 | ||
3451 | static void sky2_vpd_write(struct sky2_hw *hw, int cap, u16 offset, u32 val) | |
3452 | { | |
3453 | sky2_pci_write32(hw, cap + PCI_VPD_DATA, val); | |
3454 | sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F); | |
3455 | do { | |
3456 | cpu_relax(); | |
3457 | } while (sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F); | |
3458 | } | |
3459 | ||
3460 | static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, | |
3461 | u8 *data) | |
3462 | { | |
3463 | struct sky2_port *sky2 = netdev_priv(dev); | |
3464 | int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD); | |
3465 | int length = eeprom->len; | |
3466 | u16 offset = eeprom->offset; | |
3467 | ||
3468 | if (!cap) | |
3469 | return -EINVAL; | |
3470 | ||
3471 | eeprom->magic = SKY2_EEPROM_MAGIC; | |
3472 | ||
3473 | while (length > 0) { | |
3474 | u32 val = sky2_vpd_read(sky2->hw, cap, offset); | |
3475 | int n = min_t(int, length, sizeof(val)); | |
3476 | ||
3477 | memcpy(data, &val, n); | |
3478 | length -= n; | |
3479 | data += n; | |
3480 | offset += n; | |
3481 | } | |
3482 | return 0; | |
3483 | } | |
3484 | ||
3485 | static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, | |
3486 | u8 *data) | |
3487 | { | |
3488 | struct sky2_port *sky2 = netdev_priv(dev); | |
3489 | int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD); | |
3490 | int length = eeprom->len; | |
3491 | u16 offset = eeprom->offset; | |
3492 | ||
3493 | if (!cap) | |
3494 | return -EINVAL; | |
3495 | ||
3496 | if (eeprom->magic != SKY2_EEPROM_MAGIC) | |
3497 | return -EINVAL; | |
3498 | ||
3499 | while (length > 0) { | |
3500 | u32 val; | |
3501 | int n = min_t(int, length, sizeof(val)); | |
3502 | ||
3503 | if (n < sizeof(val)) | |
3504 | val = sky2_vpd_read(sky2->hw, cap, offset); | |
3505 | memcpy(&val, data, n); | |
3506 | ||
3507 | sky2_vpd_write(sky2->hw, cap, offset, val); | |
3508 | ||
3509 | length -= n; | |
3510 | data += n; | |
3511 | offset += n; | |
3512 | } | |
3513 | return 0; | |
3514 | } | |
3515 | ||
3516 | ||
7282d491 | 3517 | static const struct ethtool_ops sky2_ethtool_ops = { |
f4331a6d SH |
3518 | .get_settings = sky2_get_settings, |
3519 | .set_settings = sky2_set_settings, | |
3520 | .get_drvinfo = sky2_get_drvinfo, | |
3521 | .get_wol = sky2_get_wol, | |
3522 | .set_wol = sky2_set_wol, | |
3523 | .get_msglevel = sky2_get_msglevel, | |
3524 | .set_msglevel = sky2_set_msglevel, | |
3525 | .nway_reset = sky2_nway_reset, | |
3526 | .get_regs_len = sky2_get_regs_len, | |
3527 | .get_regs = sky2_get_regs, | |
3528 | .get_link = ethtool_op_get_link, | |
3529 | .get_eeprom_len = sky2_get_eeprom_len, | |
3530 | .get_eeprom = sky2_get_eeprom, | |
3531 | .set_eeprom = sky2_set_eeprom, | |
3532 | .get_sg = ethtool_op_get_sg, | |
3533 | .set_sg = ethtool_op_set_sg, | |
3534 | .get_tx_csum = ethtool_op_get_tx_csum, | |
3535 | .set_tx_csum = sky2_set_tx_csum, | |
3536 | .get_tso = ethtool_op_get_tso, | |
3537 | .set_tso = sky2_set_tso, | |
3538 | .get_rx_csum = sky2_get_rx_csum, | |
3539 | .set_rx_csum = sky2_set_rx_csum, | |
3540 | .get_strings = sky2_get_strings, | |
3541 | .get_coalesce = sky2_get_coalesce, | |
3542 | .set_coalesce = sky2_set_coalesce, | |
3543 | .get_ringparam = sky2_get_ringparam, | |
3544 | .set_ringparam = sky2_set_ringparam, | |
cd28ab6a SH |
3545 | .get_pauseparam = sky2_get_pauseparam, |
3546 | .set_pauseparam = sky2_set_pauseparam, | |
f4331a6d | 3547 | .phys_id = sky2_phys_id, |
cd28ab6a SH |
3548 | .get_stats_count = sky2_get_stats_count, |
3549 | .get_ethtool_stats = sky2_get_ethtool_stats, | |
2995bfb7 | 3550 | .get_perm_addr = ethtool_op_get_perm_addr, |
cd28ab6a SH |
3551 | }; |
3552 | ||
3cf26753 SH |
3553 | #ifdef CONFIG_SKY2_DEBUG |
3554 | ||
3555 | static struct dentry *sky2_debug; | |
3556 | ||
3557 | static int sky2_debug_show(struct seq_file *seq, void *v) | |
3558 | { | |
3559 | struct net_device *dev = seq->private; | |
3560 | const struct sky2_port *sky2 = netdev_priv(dev); | |
3561 | const struct sky2_hw *hw = sky2->hw; | |
3562 | unsigned port = sky2->port; | |
3563 | unsigned idx, last; | |
3564 | int sop; | |
3565 | ||
3566 | if (!netif_running(dev)) | |
3567 | return -ENETDOWN; | |
3568 | ||
3569 | seq_printf(seq, "IRQ src=%x mask=%x control=%x\n", | |
3570 | sky2_read32(hw, B0_ISRC), | |
3571 | sky2_read32(hw, B0_IMSK), | |
3572 | sky2_read32(hw, B0_Y2_SP_ICR)); | |
3573 | ||
3574 | netif_poll_disable(hw->dev[0]); | |
3575 | last = sky2_read16(hw, STAT_PUT_IDX); | |
3576 | ||
3577 | if (hw->st_idx == last) | |
3578 | seq_puts(seq, "Status ring (empty)\n"); | |
3579 | else { | |
3580 | seq_puts(seq, "Status ring\n"); | |
3581 | for (idx = hw->st_idx; idx != last && idx < STATUS_RING_SIZE; | |
3582 | idx = RING_NEXT(idx, STATUS_RING_SIZE)) { | |
3583 | const struct sky2_status_le *le = hw->st_le + idx; | |
3584 | seq_printf(seq, "[%d] %#x %d %#x\n", | |
3585 | idx, le->opcode, le->length, le->status); | |
3586 | } | |
3587 | seq_puts(seq, "\n"); | |
3588 | } | |
3589 | ||
3590 | seq_printf(seq, "Tx ring pending=%u...%u report=%d done=%d\n", | |
3591 | sky2->tx_cons, sky2->tx_prod, | |
3592 | sky2_read16(hw, port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX), | |
3593 | sky2_read16(hw, Q_ADDR(txqaddr[port], Q_DONE))); | |
3594 | ||
3595 | /* Dump contents of tx ring */ | |
3596 | sop = 1; | |
3597 | for (idx = sky2->tx_next; idx != sky2->tx_prod && idx < TX_RING_SIZE; | |
3598 | idx = RING_NEXT(idx, TX_RING_SIZE)) { | |
3599 | const struct sky2_tx_le *le = sky2->tx_le + idx; | |
3600 | u32 a = le32_to_cpu(le->addr); | |
3601 | ||
3602 | if (sop) | |
3603 | seq_printf(seq, "%u:", idx); | |
3604 | sop = 0; | |
3605 | ||
3606 | switch(le->opcode & ~HW_OWNER) { | |
3607 | case OP_ADDR64: | |
3608 | seq_printf(seq, " %#x:", a); | |
3609 | break; | |
3610 | case OP_LRGLEN: | |
3611 | seq_printf(seq, " mtu=%d", a); | |
3612 | break; | |
3613 | case OP_VLAN: | |
3614 | seq_printf(seq, " vlan=%d", be16_to_cpu(le->length)); | |
3615 | break; | |
3616 | case OP_TCPLISW: | |
3617 | seq_printf(seq, " csum=%#x", a); | |
3618 | break; | |
3619 | case OP_LARGESEND: | |
3620 | seq_printf(seq, " tso=%#x(%d)", a, le16_to_cpu(le->length)); | |
3621 | break; | |
3622 | case OP_PACKET: | |
3623 | seq_printf(seq, " %#x(%d)", a, le16_to_cpu(le->length)); | |
3624 | break; | |
3625 | case OP_BUFFER: | |
3626 | seq_printf(seq, " frag=%#x(%d)", a, le16_to_cpu(le->length)); | |
3627 | break; | |
3628 | default: | |
3629 | seq_printf(seq, " op=%#x,%#x(%d)", le->opcode, | |
3630 | a, le16_to_cpu(le->length)); | |
3631 | } | |
3632 | ||
3633 | if (le->ctrl & EOP) { | |
3634 | seq_putc(seq, '\n'); | |
3635 | sop = 1; | |
3636 | } | |
3637 | } | |
3638 | ||
3639 | seq_printf(seq, "\nRx ring hw get=%d put=%d last=%d\n", | |
3640 | sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_GET_IDX)), | |
3641 | last = sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_PUT_IDX)), | |
3642 | sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_LAST_IDX))); | |
3643 | ||
3644 | netif_poll_enable(hw->dev[0]); | |
3645 | return 0; | |
3646 | } | |
3647 | ||
3648 | static int sky2_debug_open(struct inode *inode, struct file *file) | |
3649 | { | |
3650 | return single_open(file, sky2_debug_show, inode->i_private); | |
3651 | } | |
3652 | ||
3653 | static const struct file_operations sky2_debug_fops = { | |
3654 | .owner = THIS_MODULE, | |
3655 | .open = sky2_debug_open, | |
3656 | .read = seq_read, | |
3657 | .llseek = seq_lseek, | |
3658 | .release = single_release, | |
3659 | }; | |
3660 | ||
3661 | /* | |
3662 | * Use network device events to create/remove/rename | |
3663 | * debugfs file entries | |
3664 | */ | |
3665 | static int sky2_device_event(struct notifier_block *unused, | |
3666 | unsigned long event, void *ptr) | |
3667 | { | |
3668 | struct net_device *dev = ptr; | |
3669 | ||
3670 | if (dev->open == sky2_up) { | |
3671 | struct sky2_port *sky2 = netdev_priv(dev); | |
3672 | ||
3673 | switch(event) { | |
3674 | case NETDEV_CHANGENAME: | |
3675 | if (!netif_running(dev)) | |
3676 | break; | |
3677 | /* fallthrough */ | |
3678 | case NETDEV_DOWN: | |
3679 | case NETDEV_GOING_DOWN: | |
3680 | if (sky2->debugfs) { | |
3681 | printk(KERN_DEBUG PFX "%s: remove debugfs\n", | |
3682 | dev->name); | |
3683 | debugfs_remove(sky2->debugfs); | |
3684 | sky2->debugfs = NULL; | |
3685 | } | |
3686 | ||
3687 | if (event != NETDEV_CHANGENAME) | |
3688 | break; | |
3689 | /* fallthrough for changename */ | |
3690 | case NETDEV_UP: | |
3691 | if (sky2_debug) { | |
3692 | struct dentry *d; | |
3693 | d = debugfs_create_file(dev->name, S_IRUGO, | |
3694 | sky2_debug, dev, | |
3695 | &sky2_debug_fops); | |
3696 | if (d == NULL || IS_ERR(d)) | |
3697 | printk(KERN_INFO PFX | |
3698 | "%s: debugfs create failed\n", | |
3699 | dev->name); | |
3700 | else | |
3701 | sky2->debugfs = d; | |
3702 | } | |
3703 | break; | |
3704 | } | |
3705 | } | |
3706 | ||
3707 | return NOTIFY_DONE; | |
3708 | } | |
3709 | ||
3710 | static struct notifier_block sky2_notifier = { | |
3711 | .notifier_call = sky2_device_event, | |
3712 | }; | |
3713 | ||
3714 | ||
3715 | static __init void sky2_debug_init(void) | |
3716 | { | |
3717 | struct dentry *ent; | |
3718 | ||
3719 | ent = debugfs_create_dir("sky2", NULL); | |
3720 | if (!ent || IS_ERR(ent)) | |
3721 | return; | |
3722 | ||
3723 | sky2_debug = ent; | |
3724 | register_netdevice_notifier(&sky2_notifier); | |
3725 | } | |
3726 | ||
3727 | static __exit void sky2_debug_cleanup(void) | |
3728 | { | |
3729 | if (sky2_debug) { | |
3730 | unregister_netdevice_notifier(&sky2_notifier); | |
3731 | debugfs_remove(sky2_debug); | |
3732 | sky2_debug = NULL; | |
3733 | } | |
3734 | } | |
3735 | ||
3736 | #else | |
3737 | #define sky2_debug_init() | |
3738 | #define sky2_debug_cleanup() | |
3739 | #endif | |
3740 | ||
3741 | ||
cd28ab6a SH |
3742 | /* Initialize network device */ |
3743 | static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw, | |
e3173832 SH |
3744 | unsigned port, |
3745 | int highmem, int wol) | |
cd28ab6a SH |
3746 | { |
3747 | struct sky2_port *sky2; | |
3748 | struct net_device *dev = alloc_etherdev(sizeof(*sky2)); | |
3749 | ||
3750 | if (!dev) { | |
b02a9258 | 3751 | dev_err(&hw->pdev->dev, "etherdev alloc failed"); |
cd28ab6a SH |
3752 | return NULL; |
3753 | } | |
3754 | ||
3755 | SET_MODULE_OWNER(dev); | |
3756 | SET_NETDEV_DEV(dev, &hw->pdev->dev); | |
ef743d33 | 3757 | dev->irq = hw->pdev->irq; |
cd28ab6a SH |
3758 | dev->open = sky2_up; |
3759 | dev->stop = sky2_down; | |
ef743d33 | 3760 | dev->do_ioctl = sky2_ioctl; |
cd28ab6a SH |
3761 | dev->hard_start_xmit = sky2_xmit_frame; |
3762 | dev->get_stats = sky2_get_stats; | |
3763 | dev->set_multicast_list = sky2_set_multicast; | |
3764 | dev->set_mac_address = sky2_set_mac_address; | |
3765 | dev->change_mtu = sky2_change_mtu; | |
3766 | SET_ETHTOOL_OPS(dev, &sky2_ethtool_ops); | |
3767 | dev->tx_timeout = sky2_tx_timeout; | |
3768 | dev->watchdog_timeo = TX_WATCHDOG; | |
3769 | if (port == 0) | |
3770 | dev->poll = sky2_poll; | |
3771 | dev->weight = NAPI_WEIGHT; | |
3772 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
0ca43235 SH |
3773 | /* Network console (only works on port 0) |
3774 | * because netpoll makes assumptions about NAPI | |
3775 | */ | |
3776 | if (port == 0) | |
3777 | dev->poll_controller = sky2_netpoll; | |
cd28ab6a | 3778 | #endif |
cd28ab6a SH |
3779 | |
3780 | sky2 = netdev_priv(dev); | |
3781 | sky2->netdev = dev; | |
3782 | sky2->hw = hw; | |
3783 | sky2->msg_enable = netif_msg_init(debug, default_msg); | |
3784 | ||
cd28ab6a SH |
3785 | /* Auto speed and flow control */ |
3786 | sky2->autoneg = AUTONEG_ENABLE; | |
16ad91e1 SH |
3787 | sky2->flow_mode = FC_BOTH; |
3788 | ||
cd28ab6a SH |
3789 | sky2->duplex = -1; |
3790 | sky2->speed = -1; | |
3791 | sky2->advertising = sky2_supported_modes(hw); | |
ee7abb04 | 3792 | sky2->rx_csum = 1; |
e3173832 | 3793 | sky2->wol = wol; |
75d070c5 | 3794 | |
e07b1aa8 | 3795 | spin_lock_init(&sky2->phy_lock); |
793b883e | 3796 | sky2->tx_pending = TX_DEF_PENDING; |
290d4de5 | 3797 | sky2->rx_pending = RX_DEF_PENDING; |
cd28ab6a SH |
3798 | |
3799 | hw->dev[port] = dev; | |
3800 | ||
3801 | sky2->port = port; | |
3802 | ||
4a50a876 | 3803 | dev->features |= NETIF_F_TSO | NETIF_F_IP_CSUM | NETIF_F_SG; |
cd28ab6a SH |
3804 | if (highmem) |
3805 | dev->features |= NETIF_F_HIGHDMA; | |
cd28ab6a | 3806 | |
d1f13708 | 3807 | #ifdef SKY2_VLAN_TAG_USED |
3808 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
3809 | dev->vlan_rx_register = sky2_vlan_rx_register; | |
d1f13708 | 3810 | #endif |
3811 | ||
cd28ab6a | 3812 | /* read the mac address */ |
793b883e | 3813 | memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN); |
2995bfb7 | 3814 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
cd28ab6a | 3815 | |
cd28ab6a SH |
3816 | return dev; |
3817 | } | |
3818 | ||
28bd181a | 3819 | static void __devinit sky2_show_addr(struct net_device *dev) |
cd28ab6a SH |
3820 | { |
3821 | const struct sky2_port *sky2 = netdev_priv(dev); | |
3822 | ||
3823 | if (netif_msg_probe(sky2)) | |
3824 | printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n", | |
3825 | dev->name, | |
3826 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], | |
3827 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); | |
3828 | } | |
3829 | ||
fb2690a9 | 3830 | /* Handle software interrupt used during MSI test */ |
7d12e780 | 3831 | static irqreturn_t __devinit sky2_test_intr(int irq, void *dev_id) |
fb2690a9 SH |
3832 | { |
3833 | struct sky2_hw *hw = dev_id; | |
3834 | u32 status = sky2_read32(hw, B0_Y2_SP_ISRC2); | |
3835 | ||
3836 | if (status == 0) | |
3837 | return IRQ_NONE; | |
3838 | ||
3839 | if (status & Y2_IS_IRQ_SW) { | |
b0a20ded | 3840 | hw->msi = 1; |
fb2690a9 SH |
3841 | wake_up(&hw->msi_wait); |
3842 | sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ); | |
3843 | } | |
3844 | sky2_write32(hw, B0_Y2_SP_ICR, 2); | |
3845 | ||
3846 | return IRQ_HANDLED; | |
3847 | } | |
3848 | ||
3849 | /* Test interrupt path by forcing a a software IRQ */ | |
3850 | static int __devinit sky2_test_msi(struct sky2_hw *hw) | |
3851 | { | |
3852 | struct pci_dev *pdev = hw->pdev; | |
3853 | int err; | |
3854 | ||
bb507fe1 | 3855 | init_waitqueue_head (&hw->msi_wait); |
3856 | ||
fb2690a9 SH |
3857 | sky2_write32(hw, B0_IMSK, Y2_IS_IRQ_SW); |
3858 | ||
b0a20ded | 3859 | err = request_irq(pdev->irq, sky2_test_intr, 0, DRV_NAME, hw); |
fb2690a9 | 3860 | if (err) { |
b02a9258 | 3861 | dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq); |
fb2690a9 SH |
3862 | return err; |
3863 | } | |
3864 | ||
fb2690a9 | 3865 | sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ); |
bb507fe1 | 3866 | sky2_read8(hw, B0_CTST); |
fb2690a9 | 3867 | |
b0a20ded | 3868 | wait_event_timeout(hw->msi_wait, hw->msi, HZ/10); |
fb2690a9 | 3869 | |
b0a20ded | 3870 | if (!hw->msi) { |
fb2690a9 | 3871 | /* MSI test failed, go back to INTx mode */ |
b02a9258 SH |
3872 | dev_info(&pdev->dev, "No interrupt generated using MSI, " |
3873 | "switching to INTx mode.\n"); | |
fb2690a9 SH |
3874 | |
3875 | err = -EOPNOTSUPP; | |
3876 | sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ); | |
3877 | } | |
3878 | ||
3879 | sky2_write32(hw, B0_IMSK, 0); | |
2bffc23a | 3880 | sky2_read32(hw, B0_IMSK); |
fb2690a9 SH |
3881 | |
3882 | free_irq(pdev->irq, hw); | |
3883 | ||
3884 | return err; | |
3885 | } | |
3886 | ||
e3173832 SH |
3887 | static int __devinit pci_wake_enabled(struct pci_dev *dev) |
3888 | { | |
3889 | int pm = pci_find_capability(dev, PCI_CAP_ID_PM); | |
3890 | u16 value; | |
3891 | ||
3892 | if (!pm) | |
3893 | return 0; | |
3894 | if (pci_read_config_word(dev, pm + PCI_PM_CTRL, &value)) | |
3895 | return 0; | |
3896 | return value & PCI_PM_CTRL_PME_ENABLE; | |
3897 | } | |
3898 | ||
cd28ab6a SH |
3899 | static int __devinit sky2_probe(struct pci_dev *pdev, |
3900 | const struct pci_device_id *ent) | |
3901 | { | |
7f60c64b | 3902 | struct net_device *dev; |
cd28ab6a | 3903 | struct sky2_hw *hw; |
e3173832 | 3904 | int err, using_dac = 0, wol_default; |
cd28ab6a | 3905 | |
793b883e SH |
3906 | err = pci_enable_device(pdev); |
3907 | if (err) { | |
b02a9258 | 3908 | dev_err(&pdev->dev, "cannot enable PCI device\n"); |
cd28ab6a SH |
3909 | goto err_out; |
3910 | } | |
3911 | ||
793b883e SH |
3912 | err = pci_request_regions(pdev, DRV_NAME); |
3913 | if (err) { | |
b02a9258 | 3914 | dev_err(&pdev->dev, "cannot obtain PCI resources\n"); |
44a1d2e5 | 3915 | goto err_out_disable; |
cd28ab6a SH |
3916 | } |
3917 | ||
3918 | pci_set_master(pdev); | |
3919 | ||
d1f3d4dd SH |
3920 | if (sizeof(dma_addr_t) > sizeof(u32) && |
3921 | !(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) { | |
3922 | using_dac = 1; | |
3923 | err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); | |
3924 | if (err < 0) { | |
b02a9258 SH |
3925 | dev_err(&pdev->dev, "unable to obtain 64 bit DMA " |
3926 | "for consistent allocations\n"); | |
d1f3d4dd SH |
3927 | goto err_out_free_regions; |
3928 | } | |
d1f3d4dd | 3929 | } else { |
cd28ab6a SH |
3930 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
3931 | if (err) { | |
b02a9258 | 3932 | dev_err(&pdev->dev, "no usable DMA configuration\n"); |
cd28ab6a SH |
3933 | goto err_out_free_regions; |
3934 | } | |
3935 | } | |
d1f3d4dd | 3936 | |
e3173832 SH |
3937 | wol_default = pci_wake_enabled(pdev) ? WAKE_MAGIC : 0; |
3938 | ||
cd28ab6a | 3939 | err = -ENOMEM; |
6aad85d6 | 3940 | hw = kzalloc(sizeof(*hw), GFP_KERNEL); |
cd28ab6a | 3941 | if (!hw) { |
b02a9258 | 3942 | dev_err(&pdev->dev, "cannot allocate hardware struct\n"); |
cd28ab6a SH |
3943 | goto err_out_free_regions; |
3944 | } | |
3945 | ||
cd28ab6a | 3946 | hw->pdev = pdev; |
cd28ab6a SH |
3947 | |
3948 | hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000); | |
3949 | if (!hw->regs) { | |
b02a9258 | 3950 | dev_err(&pdev->dev, "cannot map device registers\n"); |
cd28ab6a SH |
3951 | goto err_out_free_hw; |
3952 | } | |
3953 | ||
56a645cc | 3954 | #ifdef __BIG_ENDIAN |
f65b138c SH |
3955 | /* The sk98lin vendor driver uses hardware byte swapping but |
3956 | * this driver uses software swapping. | |
3957 | */ | |
56a645cc SH |
3958 | { |
3959 | u32 reg; | |
56a645cc | 3960 | reg = sky2_pci_read32(hw, PCI_DEV_REG2); |
f65b138c | 3961 | reg &= ~PCI_REV_DESC; |
56a645cc SH |
3962 | sky2_pci_write32(hw, PCI_DEV_REG2, reg); |
3963 | } | |
3964 | #endif | |
3965 | ||
08c06d8a SH |
3966 | /* ring for status responses */ |
3967 | hw->st_le = pci_alloc_consistent(hw->pdev, STATUS_LE_BYTES, | |
3968 | &hw->st_dma); | |
3969 | if (!hw->st_le) | |
3970 | goto err_out_iounmap; | |
3971 | ||
e3173832 | 3972 | err = sky2_init(hw); |
cd28ab6a | 3973 | if (err) |
793b883e | 3974 | goto err_out_iounmap; |
cd28ab6a | 3975 | |
b02a9258 | 3976 | dev_info(&pdev->dev, "v%s addr 0x%llx irq %d Yukon-%s (0x%x) rev %d\n", |
7c7459d1 GKH |
3977 | DRV_VERSION, (unsigned long long)pci_resource_start(pdev, 0), |
3978 | pdev->irq, yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL], | |
793b883e | 3979 | hw->chip_id, hw->chip_rev); |
cd28ab6a | 3980 | |
e3173832 SH |
3981 | sky2_reset(hw); |
3982 | ||
3983 | dev = sky2_init_netdev(hw, 0, using_dac, wol_default); | |
7f60c64b | 3984 | if (!dev) { |
3985 | err = -ENOMEM; | |
cd28ab6a | 3986 | goto err_out_free_pci; |
7f60c64b | 3987 | } |
cd28ab6a | 3988 | |
9fa1b1f3 SH |
3989 | if (!disable_msi && pci_enable_msi(pdev) == 0) { |
3990 | err = sky2_test_msi(hw); | |
3991 | if (err == -EOPNOTSUPP) | |
3992 | pci_disable_msi(pdev); | |
3993 | else if (err) | |
3994 | goto err_out_free_netdev; | |
3995 | } | |
3996 | ||
793b883e SH |
3997 | err = register_netdev(dev); |
3998 | if (err) { | |
b02a9258 | 3999 | dev_err(&pdev->dev, "cannot register net device\n"); |
cd28ab6a SH |
4000 | goto err_out_free_netdev; |
4001 | } | |
4002 | ||
b0a20ded SH |
4003 | err = request_irq(pdev->irq, sky2_intr, hw->msi ? 0 : IRQF_SHARED, |
4004 | dev->name, hw); | |
9fa1b1f3 | 4005 | if (err) { |
b02a9258 | 4006 | dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq); |
9fa1b1f3 SH |
4007 | goto err_out_unregister; |
4008 | } | |
4009 | sky2_write32(hw, B0_IMSK, Y2_IS_BASE); | |
4010 | ||
cd28ab6a SH |
4011 | sky2_show_addr(dev); |
4012 | ||
7f60c64b | 4013 | if (hw->ports > 1) { |
4014 | struct net_device *dev1; | |
4015 | ||
e3173832 | 4016 | dev1 = sky2_init_netdev(hw, 1, using_dac, wol_default); |
b02a9258 SH |
4017 | if (!dev1) |
4018 | dev_warn(&pdev->dev, "allocation for second device failed\n"); | |
4019 | else if ((err = register_netdev(dev1))) { | |
4020 | dev_warn(&pdev->dev, | |
4021 | "register of second port failed (%d)\n", err); | |
cd28ab6a SH |
4022 | hw->dev[1] = NULL; |
4023 | free_netdev(dev1); | |
b02a9258 SH |
4024 | } else |
4025 | sky2_show_addr(dev1); | |
cd28ab6a SH |
4026 | } |
4027 | ||
01bd7564 | 4028 | setup_timer(&hw->idle_timer, sky2_idle, (unsigned long) hw); |
81906791 SH |
4029 | INIT_WORK(&hw->restart_work, sky2_restart); |
4030 | ||
eb35cf60 | 4031 | sky2_idle_start(hw); |
d27ed387 | 4032 | |
793b883e SH |
4033 | pci_set_drvdata(pdev, hw); |
4034 | ||
cd28ab6a SH |
4035 | return 0; |
4036 | ||
793b883e | 4037 | err_out_unregister: |
b0a20ded SH |
4038 | if (hw->msi) |
4039 | pci_disable_msi(pdev); | |
793b883e | 4040 | unregister_netdev(dev); |
cd28ab6a SH |
4041 | err_out_free_netdev: |
4042 | free_netdev(dev); | |
cd28ab6a | 4043 | err_out_free_pci: |
793b883e | 4044 | sky2_write8(hw, B0_CTST, CS_RST_SET); |
cd28ab6a SH |
4045 | pci_free_consistent(hw->pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma); |
4046 | err_out_iounmap: | |
4047 | iounmap(hw->regs); | |
4048 | err_out_free_hw: | |
4049 | kfree(hw); | |
4050 | err_out_free_regions: | |
4051 | pci_release_regions(pdev); | |
44a1d2e5 | 4052 | err_out_disable: |
cd28ab6a | 4053 | pci_disable_device(pdev); |
cd28ab6a | 4054 | err_out: |
549a68c3 | 4055 | pci_set_drvdata(pdev, NULL); |
cd28ab6a SH |
4056 | return err; |
4057 | } | |
4058 | ||
4059 | static void __devexit sky2_remove(struct pci_dev *pdev) | |
4060 | { | |
793b883e | 4061 | struct sky2_hw *hw = pci_get_drvdata(pdev); |
cd28ab6a SH |
4062 | struct net_device *dev0, *dev1; |
4063 | ||
793b883e | 4064 | if (!hw) |
cd28ab6a SH |
4065 | return; |
4066 | ||
d27ed387 SH |
4067 | del_timer_sync(&hw->idle_timer); |
4068 | ||
81906791 SH |
4069 | flush_scheduled_work(); |
4070 | ||
d27ed387 | 4071 | sky2_write32(hw, B0_IMSK, 0); |
72cb8529 SH |
4072 | synchronize_irq(hw->pdev->irq); |
4073 | ||
cd28ab6a | 4074 | dev0 = hw->dev[0]; |
793b883e SH |
4075 | dev1 = hw->dev[1]; |
4076 | if (dev1) | |
4077 | unregister_netdev(dev1); | |
cd28ab6a SH |
4078 | unregister_netdev(dev0); |
4079 | ||
ae306cca SH |
4080 | sky2_power_aux(hw); |
4081 | ||
cd28ab6a | 4082 | sky2_write16(hw, B0_Y2LED, LED_STAT_OFF); |
793b883e | 4083 | sky2_write8(hw, B0_CTST, CS_RST_SET); |
5afa0a9c | 4084 | sky2_read8(hw, B0_CTST); |
cd28ab6a SH |
4085 | |
4086 | free_irq(pdev->irq, hw); | |
b0a20ded SH |
4087 | if (hw->msi) |
4088 | pci_disable_msi(pdev); | |
793b883e | 4089 | pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma); |
cd28ab6a SH |
4090 | pci_release_regions(pdev); |
4091 | pci_disable_device(pdev); | |
793b883e | 4092 | |
cd28ab6a SH |
4093 | if (dev1) |
4094 | free_netdev(dev1); | |
4095 | free_netdev(dev0); | |
4096 | iounmap(hw->regs); | |
4097 | kfree(hw); | |
5afa0a9c | 4098 | |
cd28ab6a SH |
4099 | pci_set_drvdata(pdev, NULL); |
4100 | } | |
4101 | ||
4102 | #ifdef CONFIG_PM | |
4103 | static int sky2_suspend(struct pci_dev *pdev, pm_message_t state) | |
4104 | { | |
793b883e | 4105 | struct sky2_hw *hw = pci_get_drvdata(pdev); |
e3173832 | 4106 | int i, wol = 0; |
cd28ab6a | 4107 | |
549a68c3 SH |
4108 | if (!hw) |
4109 | return 0; | |
4110 | ||
eb35cf60 | 4111 | del_timer_sync(&hw->idle_timer); |
6a5706b9 | 4112 | netif_poll_disable(hw->dev[0]); |
eb35cf60 | 4113 | |
f05267e7 | 4114 | for (i = 0; i < hw->ports; i++) { |
cd28ab6a | 4115 | struct net_device *dev = hw->dev[i]; |
e3173832 | 4116 | struct sky2_port *sky2 = netdev_priv(dev); |
cd28ab6a | 4117 | |
e3173832 | 4118 | if (netif_running(dev)) |
5afa0a9c | 4119 | sky2_down(dev); |
e3173832 SH |
4120 | |
4121 | if (sky2->wol) | |
4122 | sky2_wol_init(sky2); | |
4123 | ||
4124 | wol |= sky2->wol; | |
cd28ab6a SH |
4125 | } |
4126 | ||
8ab8fca2 | 4127 | sky2_write32(hw, B0_IMSK, 0); |
ae306cca | 4128 | sky2_power_aux(hw); |
e3173832 | 4129 | |
d374c1c1 | 4130 | pci_save_state(pdev); |
e3173832 | 4131 | pci_enable_wake(pdev, pci_choose_state(pdev, state), wol); |
ae306cca SH |
4132 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
4133 | ||
2ccc99b7 | 4134 | return 0; |
cd28ab6a SH |
4135 | } |
4136 | ||
4137 | static int sky2_resume(struct pci_dev *pdev) | |
4138 | { | |
793b883e | 4139 | struct sky2_hw *hw = pci_get_drvdata(pdev); |
08c06d8a | 4140 | int i, err; |
cd28ab6a | 4141 | |
549a68c3 SH |
4142 | if (!hw) |
4143 | return 0; | |
4144 | ||
ae306cca SH |
4145 | err = pci_set_power_state(pdev, PCI_D0); |
4146 | if (err) | |
4147 | goto out; | |
4148 | ||
4149 | err = pci_restore_state(pdev); | |
4150 | if (err) | |
4151 | goto out; | |
4152 | ||
cd28ab6a | 4153 | pci_enable_wake(pdev, PCI_D0, 0); |
1ad5b4a5 SH |
4154 | |
4155 | /* Re-enable all clocks */ | |
4156 | if (hw->chip_id == CHIP_ID_YUKON_EX || hw->chip_id == CHIP_ID_YUKON_EC_U) | |
4157 | sky2_pci_write32(hw, PCI_DEV_REG3, 0); | |
4158 | ||
e3173832 | 4159 | sky2_reset(hw); |
cd28ab6a | 4160 | |
8ab8fca2 SH |
4161 | sky2_write32(hw, B0_IMSK, Y2_IS_BASE); |
4162 | ||
f05267e7 | 4163 | for (i = 0; i < hw->ports; i++) { |
cd28ab6a | 4164 | struct net_device *dev = hw->dev[i]; |
6a5706b9 | 4165 | if (netif_running(dev)) { |
08c06d8a SH |
4166 | err = sky2_up(dev); |
4167 | if (err) { | |
4168 | printk(KERN_ERR PFX "%s: could not up: %d\n", | |
4169 | dev->name, err); | |
4170 | dev_close(dev); | |
eb35cf60 | 4171 | goto out; |
5afa0a9c | 4172 | } |
cd28ab6a SH |
4173 | } |
4174 | } | |
eb35cf60 | 4175 | |
6a5706b9 | 4176 | netif_poll_enable(hw->dev[0]); |
eb35cf60 | 4177 | sky2_idle_start(hw); |
ae306cca | 4178 | return 0; |
08c06d8a | 4179 | out: |
b02a9258 | 4180 | dev_err(&pdev->dev, "resume failed (%d)\n", err); |
ae306cca | 4181 | pci_disable_device(pdev); |
08c06d8a | 4182 | return err; |
cd28ab6a SH |
4183 | } |
4184 | #endif | |
4185 | ||
e3173832 SH |
4186 | static void sky2_shutdown(struct pci_dev *pdev) |
4187 | { | |
4188 | struct sky2_hw *hw = pci_get_drvdata(pdev); | |
4189 | int i, wol = 0; | |
4190 | ||
549a68c3 SH |
4191 | if (!hw) |
4192 | return; | |
4193 | ||
e3173832 SH |
4194 | del_timer_sync(&hw->idle_timer); |
4195 | netif_poll_disable(hw->dev[0]); | |
4196 | ||
4197 | for (i = 0; i < hw->ports; i++) { | |
4198 | struct net_device *dev = hw->dev[i]; | |
4199 | struct sky2_port *sky2 = netdev_priv(dev); | |
4200 | ||
4201 | if (sky2->wol) { | |
4202 | wol = 1; | |
4203 | sky2_wol_init(sky2); | |
4204 | } | |
4205 | } | |
4206 | ||
4207 | if (wol) | |
4208 | sky2_power_aux(hw); | |
4209 | ||
4210 | pci_enable_wake(pdev, PCI_D3hot, wol); | |
4211 | pci_enable_wake(pdev, PCI_D3cold, wol); | |
4212 | ||
4213 | pci_disable_device(pdev); | |
4214 | pci_set_power_state(pdev, PCI_D3hot); | |
4215 | ||
4216 | } | |
4217 | ||
cd28ab6a | 4218 | static struct pci_driver sky2_driver = { |
793b883e SH |
4219 | .name = DRV_NAME, |
4220 | .id_table = sky2_id_table, | |
4221 | .probe = sky2_probe, | |
4222 | .remove = __devexit_p(sky2_remove), | |
cd28ab6a | 4223 | #ifdef CONFIG_PM |
793b883e SH |
4224 | .suspend = sky2_suspend, |
4225 | .resume = sky2_resume, | |
cd28ab6a | 4226 | #endif |
e3173832 | 4227 | .shutdown = sky2_shutdown, |
cd28ab6a SH |
4228 | }; |
4229 | ||
4230 | static int __init sky2_init_module(void) | |
4231 | { | |
3cf26753 | 4232 | sky2_debug_init(); |
50241c4c | 4233 | return pci_register_driver(&sky2_driver); |
cd28ab6a SH |
4234 | } |
4235 | ||
4236 | static void __exit sky2_cleanup_module(void) | |
4237 | { | |
4238 | pci_unregister_driver(&sky2_driver); | |
3cf26753 | 4239 | sky2_debug_cleanup(); |
cd28ab6a SH |
4240 | } |
4241 | ||
4242 | module_init(sky2_init_module); | |
4243 | module_exit(sky2_cleanup_module); | |
4244 | ||
4245 | MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver"); | |
65ebe634 | 4246 | MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>"); |
cd28ab6a | 4247 | MODULE_LICENSE("GPL"); |
5f4f9dc1 | 4248 | MODULE_VERSION(DRV_VERSION); |