Commit | Line | Data |
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1da177e4 | 1 | |
6aa20a22 JG |
2 | /* Advanced Micro Devices Inc. AMD8111E Linux Network Driver |
3 | * Copyright (C) 2004 Advanced Micro Devices | |
4 | * | |
1da177e4 | 5 | * |
1da177e4 LT |
6 | * Copyright 2001,2002 Jeff Garzik <jgarzik@mandrakesoft.com> [ 8139cp.c,tg3.c ] |
7 | * Copyright (C) 2001, 2002 David S. Miller (davem@redhat.com)[ tg3.c] | |
8 | * Copyright 1996-1999 Thomas Bogendoerfer [ pcnet32.c ] | |
9 | * Derived from the lance driver written 1993,1994,1995 by Donald Becker. | |
10 | * Copyright 1993 United States Government as represented by the | |
11 | * Director, National Security Agency.[ pcnet32.c ] | |
12 | * Carsten Langgaard, carstenl@mips.com [ pcnet32.c ] | |
13 | * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. | |
14 | * | |
6aa20a22 | 15 | * |
1da177e4 LT |
16 | * This program is free software; you can redistribute it and/or modify |
17 | * it under the terms of the GNU General Public License as published by | |
18 | * the Free Software Foundation; either version 2 of the License, or | |
19 | * (at your option) any later version. | |
20 | * | |
21 | * This program is distributed in the hope that it will be useful, | |
22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | * GNU General Public License for more details. | |
25 | * | |
26 | * You should have received a copy of the GNU General Public License | |
0ab75ae8 | 27 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
6aa20a22 | 28 | |
1da177e4 LT |
29 | Module Name: |
30 | ||
31 | amd8111e.c | |
32 | ||
33 | Abstract: | |
6aa20a22 JG |
34 | |
35 | AMD8111 based 10/100 Ethernet Controller Driver. | |
1da177e4 LT |
36 | |
37 | Environment: | |
38 | ||
39 | Kernel Mode | |
40 | ||
41 | Revision History: | |
42 | 3.0.0 | |
43 | Initial Revision. | |
44 | 3.0.1 | |
45 | 1. Dynamic interrupt coalescing. | |
46 | 2. Removed prev_stats. | |
47 | 3. MII support. | |
48 | 4. Dynamic IPG support | |
49 | 3.0.2 05/29/2003 | |
50 | 1. Bug fix: Fixed failure to send jumbo packets larger than 4k. | |
51 | 2. Bug fix: Fixed VLAN support failure. | |
52 | 3. Bug fix: Fixed receive interrupt coalescing bug. | |
53 | 4. Dynamic IPG support is disabled by default. | |
54 | 3.0.3 06/05/2003 | |
55 | 1. Bug fix: Fixed failure to close the interface if SMP is enabled. | |
56 | 3.0.4 12/09/2003 | |
57 | 1. Added set_mac_address routine for bonding driver support. | |
58 | 2. Tested the driver for bonding support | |
6aa20a22 | 59 | 3. Bug fix: Fixed mismach in actual receive buffer lenth and lenth |
1da177e4 | 60 | indicated to the h/w. |
6aa20a22 | 61 | 4. Modified amd8111e_rx() routine to receive all the received packets |
1da177e4 LT |
62 | in the first interrupt. |
63 | 5. Bug fix: Corrected rx_errors reported in get_stats() function. | |
64 | 3.0.5 03/22/2004 | |
6aa20a22 | 65 | 1. Added NAPI support |
1da177e4 LT |
66 | |
67 | */ | |
68 | ||
69 | ||
1da177e4 LT |
70 | #include <linux/module.h> |
71 | #include <linux/kernel.h> | |
72 | #include <linux/types.h> | |
73 | #include <linux/compiler.h> | |
1da177e4 | 74 | #include <linux/delay.h> |
a6b7a407 | 75 | #include <linux/interrupt.h> |
1da177e4 LT |
76 | #include <linux/ioport.h> |
77 | #include <linux/pci.h> | |
78 | #include <linux/netdevice.h> | |
79 | #include <linux/etherdevice.h> | |
80 | #include <linux/skbuff.h> | |
81 | #include <linux/ethtool.h> | |
82 | #include <linux/mii.h> | |
83 | #include <linux/if_vlan.h> | |
6aa20a22 | 84 | #include <linux/ctype.h> |
1da177e4 | 85 | #include <linux/crc32.h> |
cac8c81a | 86 | #include <linux/dma-mapping.h> |
1da177e4 | 87 | |
1da177e4 LT |
88 | #include <asm/io.h> |
89 | #include <asm/byteorder.h> | |
90 | #include <asm/uaccess.h> | |
91 | ||
92 | #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) | |
93 | #define AMD8111E_VLAN_TAG_USED 1 | |
94 | #else | |
95 | #define AMD8111E_VLAN_TAG_USED 0 | |
96 | #endif | |
97 | ||
98 | #include "amd8111e.h" | |
99 | #define MODULE_NAME "amd8111e" | |
6ba33ac8 | 100 | #define MODULE_VERS "3.0.7" |
1da177e4 | 101 | MODULE_AUTHOR("Advanced Micro Devices, Inc."); |
6ba33ac8 | 102 | MODULE_DESCRIPTION ("AMD8111 based 10/100 Ethernet Controller. Driver Version "MODULE_VERS); |
1da177e4 | 103 | MODULE_LICENSE("GPL"); |
1da177e4 | 104 | module_param_array(speed_duplex, int, NULL, 0); |
983960b1 | 105 | MODULE_PARM_DESC(speed_duplex, "Set device speed and duplex modes, 0: Auto Negotiate, 1: 10Mbps Half Duplex, 2: 10Mbps Full Duplex, 3: 100Mbps Half Duplex, 4: 100Mbps Full Duplex"); |
1da177e4 LT |
106 | module_param_array(coalesce, bool, NULL, 0); |
107 | MODULE_PARM_DESC(coalesce, "Enable or Disable interrupt coalescing, 1: Enable, 0: Disable"); | |
108 | module_param_array(dynamic_ipg, bool, NULL, 0); | |
109 | MODULE_PARM_DESC(dynamic_ipg, "Enable or Disable dynamic IPG, 1: Enable, 0: Disable"); | |
110 | ||
13a4fa43 | 111 | /* This function will read the PHY registers. */ |
46c73ecc VB |
112 | static int amd8111e_read_phy(struct amd8111e_priv *lp, |
113 | int phy_id, int reg, u32 *val) | |
1da177e4 LT |
114 | { |
115 | void __iomem *mmio = lp->mmio; | |
116 | unsigned int reg_val; | |
117 | unsigned int repeat= REPEAT_CNT; | |
118 | ||
119 | reg_val = readl(mmio + PHY_ACCESS); | |
120 | while (reg_val & PHY_CMD_ACTIVE) | |
121 | reg_val = readl( mmio + PHY_ACCESS ); | |
122 | ||
123 | writel( PHY_RD_CMD | ((phy_id & 0x1f) << 21) | | |
124 | ((reg & 0x1f) << 16), mmio +PHY_ACCESS); | |
125 | do{ | |
126 | reg_val = readl(mmio + PHY_ACCESS); | |
127 | udelay(30); /* It takes 30 us to read/write data */ | |
128 | } while (--repeat && (reg_val & PHY_CMD_ACTIVE)); | |
129 | if(reg_val & PHY_RD_ERR) | |
130 | goto err_phy_read; | |
6aa20a22 | 131 | |
1da177e4 LT |
132 | *val = reg_val & 0xffff; |
133 | return 0; | |
6aa20a22 | 134 | err_phy_read: |
1da177e4 LT |
135 | *val = 0; |
136 | return -EINVAL; | |
6aa20a22 | 137 | |
1da177e4 LT |
138 | } |
139 | ||
13a4fa43 | 140 | /* This function will write into PHY registers. */ |
46c73ecc VB |
141 | static int amd8111e_write_phy(struct amd8111e_priv *lp, |
142 | int phy_id, int reg, u32 val) | |
1da177e4 | 143 | { |
632155e6 | 144 | unsigned int repeat = REPEAT_CNT; |
1da177e4 LT |
145 | void __iomem *mmio = lp->mmio; |
146 | unsigned int reg_val; | |
147 | ||
148 | reg_val = readl(mmio + PHY_ACCESS); | |
149 | while (reg_val & PHY_CMD_ACTIVE) | |
150 | reg_val = readl( mmio + PHY_ACCESS ); | |
151 | ||
152 | writel( PHY_WR_CMD | ((phy_id & 0x1f) << 21) | | |
153 | ((reg & 0x1f) << 16)|val, mmio + PHY_ACCESS); | |
154 | ||
155 | do{ | |
156 | reg_val = readl(mmio + PHY_ACCESS); | |
157 | udelay(30); /* It takes 30 us to read/write the data */ | |
158 | } while (--repeat && (reg_val & PHY_CMD_ACTIVE)); | |
6aa20a22 | 159 | |
1da177e4 LT |
160 | if(reg_val & PHY_RD_ERR) |
161 | goto err_phy_write; | |
6aa20a22 | 162 | |
1da177e4 LT |
163 | return 0; |
164 | ||
6aa20a22 | 165 | err_phy_write: |
1da177e4 | 166 | return -EINVAL; |
6aa20a22 | 167 | |
1da177e4 | 168 | } |
13a4fa43 VB |
169 | |
170 | /* This is the mii register read function provided to the mii interface. */ | |
46c73ecc | 171 | static int amd8111e_mdio_read(struct net_device *dev, int phy_id, int reg_num) |
1da177e4 | 172 | { |
46c73ecc | 173 | struct amd8111e_priv *lp = netdev_priv(dev); |
1da177e4 LT |
174 | unsigned int reg_val; |
175 | ||
176 | amd8111e_read_phy(lp,phy_id,reg_num,®_val); | |
177 | return reg_val; | |
6aa20a22 | 178 | |
1da177e4 LT |
179 | } |
180 | ||
13a4fa43 | 181 | /* This is the mii register write function provided to the mii interface. */ |
46c73ecc VB |
182 | static void amd8111e_mdio_write(struct net_device *dev, |
183 | int phy_id, int reg_num, int val) | |
1da177e4 | 184 | { |
46c73ecc | 185 | struct amd8111e_priv *lp = netdev_priv(dev); |
1da177e4 LT |
186 | |
187 | amd8111e_write_phy(lp, phy_id, reg_num, val); | |
188 | } | |
189 | ||
13a4fa43 VB |
190 | /* This function will set PHY speed. During initialization sets |
191 | * the original speed to 100 full | |
192 | */ | |
1da177e4 LT |
193 | static void amd8111e_set_ext_phy(struct net_device *dev) |
194 | { | |
195 | struct amd8111e_priv *lp = netdev_priv(dev); | |
196 | u32 bmcr,advert,tmp; | |
6aa20a22 | 197 | |
1da177e4 LT |
198 | /* Determine mii register values to set the speed */ |
199 | advert = amd8111e_mdio_read(dev, lp->ext_phy_addr, MII_ADVERTISE); | |
200 | tmp = advert & ~(ADVERTISE_ALL | ADVERTISE_100BASE4); | |
201 | switch (lp->ext_phy_option){ | |
202 | ||
203 | default: | |
204 | case SPEED_AUTONEG: /* advertise all values */ | |
205 | tmp |= ( ADVERTISE_10HALF|ADVERTISE_10FULL| | |
206 | ADVERTISE_100HALF|ADVERTISE_100FULL) ; | |
207 | break; | |
208 | case SPEED10_HALF: | |
209 | tmp |= ADVERTISE_10HALF; | |
210 | break; | |
211 | case SPEED10_FULL: | |
212 | tmp |= ADVERTISE_10FULL; | |
213 | break; | |
6aa20a22 | 214 | case SPEED100_HALF: |
1da177e4 LT |
215 | tmp |= ADVERTISE_100HALF; |
216 | break; | |
217 | case SPEED100_FULL: | |
218 | tmp |= ADVERTISE_100FULL; | |
219 | break; | |
220 | } | |
221 | ||
222 | if(advert != tmp) | |
223 | amd8111e_mdio_write(dev, lp->ext_phy_addr, MII_ADVERTISE, tmp); | |
224 | /* Restart auto negotiation */ | |
225 | bmcr = amd8111e_mdio_read(dev, lp->ext_phy_addr, MII_BMCR); | |
226 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
227 | amd8111e_mdio_write(dev, lp->ext_phy_addr, MII_BMCR, bmcr); | |
228 | ||
229 | } | |
230 | ||
13a4fa43 VB |
231 | /* This function will unmap skb->data space and will free |
232 | * all transmit and receive skbuffs. | |
233 | */ | |
1da177e4 LT |
234 | static int amd8111e_free_skbs(struct net_device *dev) |
235 | { | |
236 | struct amd8111e_priv *lp = netdev_priv(dev); | |
46c73ecc | 237 | struct sk_buff *rx_skbuff; |
1da177e4 LT |
238 | int i; |
239 | ||
240 | /* Freeing transmit skbs */ | |
241 | for(i = 0; i < NUM_TX_BUFFERS; i++){ | |
242 | if(lp->tx_skbuff[i]){ | |
243 | pci_unmap_single(lp->pci_dev,lp->tx_dma_addr[i], lp->tx_skbuff[i]->len,PCI_DMA_TODEVICE); | |
244 | dev_kfree_skb (lp->tx_skbuff[i]); | |
245 | lp->tx_skbuff[i] = NULL; | |
246 | lp->tx_dma_addr[i] = 0; | |
247 | } | |
248 | } | |
249 | /* Freeing previously allocated receive buffers */ | |
250 | for (i = 0; i < NUM_RX_BUFFERS; i++){ | |
251 | rx_skbuff = lp->rx_skbuff[i]; | |
252 | if(rx_skbuff != NULL){ | |
253 | pci_unmap_single(lp->pci_dev,lp->rx_dma_addr[i], | |
254 | lp->rx_buff_len - 2,PCI_DMA_FROMDEVICE); | |
255 | dev_kfree_skb(lp->rx_skbuff[i]); | |
256 | lp->rx_skbuff[i] = NULL; | |
257 | lp->rx_dma_addr[i] = 0; | |
258 | } | |
259 | } | |
6aa20a22 | 260 | |
1da177e4 LT |
261 | return 0; |
262 | } | |
263 | ||
13a4fa43 VB |
264 | /* This will set the receive buffer length corresponding |
265 | * to the mtu size of networkinterface. | |
266 | */ | |
46c73ecc | 267 | static inline void amd8111e_set_rx_buff_len(struct net_device *dev) |
1da177e4 | 268 | { |
46c73ecc | 269 | struct amd8111e_priv *lp = netdev_priv(dev); |
1da177e4 | 270 | unsigned int mtu = dev->mtu; |
6aa20a22 | 271 | |
1da177e4 LT |
272 | if (mtu > ETH_DATA_LEN){ |
273 | /* MTU + ethernet header + FCS | |
13a4fa43 VB |
274 | * + optional VLAN tag + skb reserve space 2 |
275 | */ | |
1da177e4 LT |
276 | lp->rx_buff_len = mtu + ETH_HLEN + 10; |
277 | lp->options |= OPTION_JUMBO_ENABLE; | |
278 | } else{ | |
279 | lp->rx_buff_len = PKT_BUFF_SZ; | |
280 | lp->options &= ~OPTION_JUMBO_ENABLE; | |
281 | } | |
282 | } | |
283 | ||
13a4fa43 VB |
284 | /* This function will free all the previously allocated buffers, |
285 | * determine new receive buffer length and will allocate new receive buffers. | |
286 | * This function also allocates and initializes both the transmitter | |
287 | * and receive hardware descriptors. | |
1da177e4 LT |
288 | */ |
289 | static int amd8111e_init_ring(struct net_device *dev) | |
290 | { | |
291 | struct amd8111e_priv *lp = netdev_priv(dev); | |
292 | int i; | |
293 | ||
294 | lp->rx_idx = lp->tx_idx = 0; | |
295 | lp->tx_complete_idx = 0; | |
296 | lp->tx_ring_idx = 0; | |
6aa20a22 | 297 | |
1da177e4 LT |
298 | |
299 | if(lp->opened) | |
300 | /* Free previously allocated transmit and receive skbs */ | |
6aa20a22 | 301 | amd8111e_free_skbs(dev); |
1da177e4 LT |
302 | |
303 | else{ | |
304 | /* allocate the tx and rx descriptors */ | |
6aa20a22 | 305 | if((lp->tx_ring = pci_alloc_consistent(lp->pci_dev, |
1da177e4 LT |
306 | sizeof(struct amd8111e_tx_dr)*NUM_TX_RING_DR, |
307 | &lp->tx_ring_dma_addr)) == NULL) | |
6aa20a22 | 308 | |
1da177e4 | 309 | goto err_no_mem; |
6aa20a22 JG |
310 | |
311 | if((lp->rx_ring = pci_alloc_consistent(lp->pci_dev, | |
1da177e4 LT |
312 | sizeof(struct amd8111e_rx_dr)*NUM_RX_RING_DR, |
313 | &lp->rx_ring_dma_addr)) == NULL) | |
6aa20a22 | 314 | |
1da177e4 LT |
315 | goto err_free_tx_ring; |
316 | ||
317 | } | |
318 | /* Set new receive buff size */ | |
319 | amd8111e_set_rx_buff_len(dev); | |
320 | ||
321 | /* Allocating receive skbs */ | |
322 | for (i = 0; i < NUM_RX_BUFFERS; i++) { | |
323 | ||
1d266430 PD |
324 | lp->rx_skbuff[i] = netdev_alloc_skb(dev, lp->rx_buff_len); |
325 | if (!lp->rx_skbuff[i]) { | |
1da177e4 LT |
326 | /* Release previos allocated skbs */ |
327 | for(--i; i >= 0 ;i--) | |
328 | dev_kfree_skb(lp->rx_skbuff[i]); | |
329 | goto err_free_rx_ring; | |
330 | } | |
331 | skb_reserve(lp->rx_skbuff[i],2); | |
332 | } | |
333 | /* Initilaizing receive descriptors */ | |
334 | for (i = 0; i < NUM_RX_BUFFERS; i++) { | |
6aa20a22 | 335 | lp->rx_dma_addr[i] = pci_map_single(lp->pci_dev, |
1da177e4 LT |
336 | lp->rx_skbuff[i]->data,lp->rx_buff_len-2, PCI_DMA_FROMDEVICE); |
337 | ||
338 | lp->rx_ring[i].buff_phy_addr = cpu_to_le32(lp->rx_dma_addr[i]); | |
339 | lp->rx_ring[i].buff_count = cpu_to_le16(lp->rx_buff_len-2); | |
340 | wmb(); | |
341 | lp->rx_ring[i].rx_flags = cpu_to_le16(OWN_BIT); | |
342 | } | |
343 | ||
344 | /* Initializing transmit descriptors */ | |
345 | for (i = 0; i < NUM_TX_RING_DR; i++) { | |
346 | lp->tx_ring[i].buff_phy_addr = 0; | |
347 | lp->tx_ring[i].tx_flags = 0; | |
348 | lp->tx_ring[i].buff_count = 0; | |
349 | } | |
350 | ||
351 | return 0; | |
352 | ||
353 | err_free_rx_ring: | |
6aa20a22 JG |
354 | |
355 | pci_free_consistent(lp->pci_dev, | |
1da177e4 LT |
356 | sizeof(struct amd8111e_rx_dr)*NUM_RX_RING_DR,lp->rx_ring, |
357 | lp->rx_ring_dma_addr); | |
358 | ||
359 | err_free_tx_ring: | |
6aa20a22 | 360 | |
1da177e4 | 361 | pci_free_consistent(lp->pci_dev, |
6aa20a22 | 362 | sizeof(struct amd8111e_tx_dr)*NUM_TX_RING_DR,lp->tx_ring, |
1da177e4 LT |
363 | lp->tx_ring_dma_addr); |
364 | ||
365 | err_no_mem: | |
366 | return -ENOMEM; | |
367 | } | |
13a4fa43 VB |
368 | |
369 | /* This function will set the interrupt coalescing according | |
370 | * to the input arguments | |
371 | */ | |
46c73ecc | 372 | static int amd8111e_set_coalesce(struct net_device *dev, enum coal_mode cmod) |
1da177e4 LT |
373 | { |
374 | unsigned int timeout; | |
375 | unsigned int event_count; | |
376 | ||
377 | struct amd8111e_priv *lp = netdev_priv(dev); | |
378 | void __iomem *mmio = lp->mmio; | |
46c73ecc | 379 | struct amd8111e_coalesce_conf *coal_conf = &lp->coal_conf; |
1da177e4 LT |
380 | |
381 | ||
382 | switch(cmod) | |
383 | { | |
384 | case RX_INTR_COAL : | |
385 | timeout = coal_conf->rx_timeout; | |
386 | event_count = coal_conf->rx_event_count; | |
6aa20a22 JG |
387 | if( timeout > MAX_TIMEOUT || |
388 | event_count > MAX_EVENT_COUNT ) | |
022484c1 | 389 | return -EINVAL; |
1da177e4 | 390 | |
6aa20a22 | 391 | timeout = timeout * DELAY_TIMER_CONV; |
1da177e4 LT |
392 | writel(VAL0|STINTEN, mmio+INTEN0); |
393 | writel((u32)DLY_INT_A_R0|( event_count<< 16 )|timeout, | |
394 | mmio+DLY_INT_A); | |
395 | break; | |
396 | ||
397 | case TX_INTR_COAL : | |
398 | timeout = coal_conf->tx_timeout; | |
399 | event_count = coal_conf->tx_event_count; | |
6aa20a22 JG |
400 | if( timeout > MAX_TIMEOUT || |
401 | event_count > MAX_EVENT_COUNT ) | |
022484c1 | 402 | return -EINVAL; |
1da177e4 | 403 | |
6aa20a22 JG |
404 | |
405 | timeout = timeout * DELAY_TIMER_CONV; | |
1da177e4 LT |
406 | writel(VAL0|STINTEN,mmio+INTEN0); |
407 | writel((u32)DLY_INT_B_T0|( event_count<< 16 )|timeout, | |
408 | mmio+DLY_INT_B); | |
409 | break; | |
410 | ||
411 | case DISABLE_COAL: | |
412 | writel(0,mmio+STVAL); | |
413 | writel(STINTEN, mmio+INTEN0); | |
414 | writel(0, mmio +DLY_INT_B); | |
415 | writel(0, mmio+DLY_INT_A); | |
416 | break; | |
6aa20a22 | 417 | case ENABLE_COAL: |
1da177e4 LT |
418 | /* Start the timer */ |
419 | writel((u32)SOFT_TIMER_FREQ, mmio+STVAL); /* 0.5 sec */ | |
420 | writel(VAL0|STINTEN, mmio+INTEN0); | |
421 | break; | |
422 | default: | |
423 | break; | |
424 | ||
425 | } | |
426 | return 0; | |
427 | ||
428 | } | |
429 | ||
13a4fa43 | 430 | /* This function initializes the device registers and starts the device. */ |
1da177e4 LT |
431 | static int amd8111e_restart(struct net_device *dev) |
432 | { | |
433 | struct amd8111e_priv *lp = netdev_priv(dev); | |
434 | void __iomem *mmio = lp->mmio; | |
435 | int i,reg_val; | |
436 | ||
437 | /* stop the chip */ | |
438 | writel(RUN, mmio + CMD0); | |
439 | ||
440 | if(amd8111e_init_ring(dev)) | |
441 | return -ENOMEM; | |
442 | ||
443 | /* enable the port manager and set auto negotiation always */ | |
444 | writel((u32) VAL1|EN_PMGR, mmio + CMD3 ); | |
6aa20a22 JG |
445 | writel((u32)XPHYANE|XPHYRST , mmio + CTRL2); |
446 | ||
1da177e4 LT |
447 | amd8111e_set_ext_phy(dev); |
448 | ||
449 | /* set control registers */ | |
450 | reg_val = readl(mmio + CTRL1); | |
451 | reg_val &= ~XMTSP_MASK; | |
452 | writel( reg_val| XMTSP_128 | CACHE_ALIGN, mmio + CTRL1 ); | |
453 | ||
454 | /* enable interrupt */ | |
6aa20a22 | 455 | writel( APINT5EN | APINT4EN | APINT3EN | APINT2EN | APINT1EN | |
1da177e4 LT |
456 | APINT0EN | MIIPDTINTEN | MCCIINTEN | MCCINTEN | MREINTEN | |
457 | SPNDINTEN | MPINTEN | SINTEN | STINTEN, mmio + INTEN0); | |
458 | ||
459 | writel(VAL3 | LCINTEN | VAL1 | TINTEN0 | VAL0 | RINTEN0, mmio + INTEN0); | |
460 | ||
461 | /* initialize tx and rx ring base addresses */ | |
462 | writel((u32)lp->tx_ring_dma_addr,mmio + XMT_RING_BASE_ADDR0); | |
463 | writel((u32)lp->rx_ring_dma_addr,mmio+ RCV_RING_BASE_ADDR0); | |
464 | ||
465 | writew((u32)NUM_TX_RING_DR, mmio + XMT_RING_LEN0); | |
466 | writew((u16)NUM_RX_RING_DR, mmio + RCV_RING_LEN0); | |
6aa20a22 | 467 | |
1da177e4 LT |
468 | /* set default IPG to 96 */ |
469 | writew((u32)DEFAULT_IPG,mmio+IPG); | |
6aa20a22 | 470 | writew((u32)(DEFAULT_IPG-IFS1_DELTA), mmio + IFS1); |
1da177e4 LT |
471 | |
472 | if(lp->options & OPTION_JUMBO_ENABLE){ | |
473 | writel((u32)VAL2|JUMBO, mmio + CMD3); | |
474 | /* Reset REX_UFLO */ | |
475 | writel( REX_UFLO, mmio + CMD2); | |
476 | /* Should not set REX_UFLO for jumbo frames */ | |
477 | writel( VAL0 | APAD_XMT|REX_RTRY , mmio + CMD2); | |
478 | }else{ | |
479 | writel( VAL0 | APAD_XMT | REX_RTRY|REX_UFLO, mmio + CMD2); | |
480 | writel((u32)JUMBO, mmio + CMD3); | |
481 | } | |
482 | ||
483 | #if AMD8111E_VLAN_TAG_USED | |
484 | writel((u32) VAL2|VSIZE|VL_TAG_DEL, mmio + CMD3); | |
485 | #endif | |
486 | writel( VAL0 | APAD_XMT | REX_RTRY, mmio + CMD2 ); | |
6aa20a22 | 487 | |
1da177e4 | 488 | /* Setting the MAC address to the device */ |
c857ff6e | 489 | for (i = 0; i < ETH_ALEN; i++) |
6aa20a22 | 490 | writeb( dev->dev_addr[i], mmio + PADR + i ); |
1da177e4 LT |
491 | |
492 | /* Enable interrupt coalesce */ | |
493 | if(lp->options & OPTION_INTR_COAL_ENABLE){ | |
f7afbaa5 | 494 | netdev_info(dev, "Interrupt Coalescing Enabled.\n"); |
1da177e4 LT |
495 | amd8111e_set_coalesce(dev,ENABLE_COAL); |
496 | } | |
6aa20a22 | 497 | |
1da177e4 LT |
498 | /* set RUN bit to start the chip */ |
499 | writel(VAL2 | RDMD0, mmio + CMD0); | |
500 | writel(VAL0 | INTREN | RUN, mmio + CMD0); | |
6aa20a22 | 501 | |
1da177e4 LT |
502 | /* To avoid PCI posting bug */ |
503 | readl(mmio+CMD0); | |
504 | return 0; | |
505 | } | |
13a4fa43 VB |
506 | |
507 | /* This function clears necessary the device registers. */ | |
46c73ecc | 508 | static void amd8111e_init_hw_default(struct amd8111e_priv *lp) |
1da177e4 LT |
509 | { |
510 | unsigned int reg_val; | |
511 | unsigned int logic_filter[2] ={0,}; | |
512 | void __iomem *mmio = lp->mmio; | |
513 | ||
514 | ||
515 | /* stop the chip */ | |
516 | writel(RUN, mmio + CMD0); | |
517 | ||
518 | /* AUTOPOLL0 Register *//*TBD default value is 8100 in FPS */ | |
519 | writew( 0x8100 | lp->ext_phy_addr, mmio + AUTOPOLL0); | |
520 | ||
521 | /* Clear RCV_RING_BASE_ADDR */ | |
522 | writel(0, mmio + RCV_RING_BASE_ADDR0); | |
523 | ||
524 | /* Clear XMT_RING_BASE_ADDR */ | |
525 | writel(0, mmio + XMT_RING_BASE_ADDR0); | |
526 | writel(0, mmio + XMT_RING_BASE_ADDR1); | |
527 | writel(0, mmio + XMT_RING_BASE_ADDR2); | |
528 | writel(0, mmio + XMT_RING_BASE_ADDR3); | |
529 | ||
530 | /* Clear CMD0 */ | |
531 | writel(CMD0_CLEAR,mmio + CMD0); | |
6aa20a22 | 532 | |
1da177e4 LT |
533 | /* Clear CMD2 */ |
534 | writel(CMD2_CLEAR, mmio +CMD2); | |
535 | ||
536 | /* Clear CMD7 */ | |
537 | writel(CMD7_CLEAR , mmio + CMD7); | |
538 | ||
539 | /* Clear DLY_INT_A and DLY_INT_B */ | |
540 | writel(0x0, mmio + DLY_INT_A); | |
541 | writel(0x0, mmio + DLY_INT_B); | |
542 | ||
543 | /* Clear FLOW_CONTROL */ | |
544 | writel(0x0, mmio + FLOW_CONTROL); | |
545 | ||
546 | /* Clear INT0 write 1 to clear register */ | |
547 | reg_val = readl(mmio + INT0); | |
548 | writel(reg_val, mmio + INT0); | |
549 | ||
550 | /* Clear STVAL */ | |
551 | writel(0x0, mmio + STVAL); | |
552 | ||
553 | /* Clear INTEN0 */ | |
554 | writel( INTEN0_CLEAR, mmio + INTEN0); | |
555 | ||
556 | /* Clear LADRF */ | |
557 | writel(0x0 , mmio + LADRF); | |
558 | ||
559 | /* Set SRAM_SIZE & SRAM_BOUNDARY registers */ | |
560 | writel( 0x80010,mmio + SRAM_SIZE); | |
561 | ||
562 | /* Clear RCV_RING0_LEN */ | |
563 | writel(0x0, mmio + RCV_RING_LEN0); | |
564 | ||
565 | /* Clear XMT_RING0/1/2/3_LEN */ | |
566 | writel(0x0, mmio + XMT_RING_LEN0); | |
567 | writel(0x0, mmio + XMT_RING_LEN1); | |
568 | writel(0x0, mmio + XMT_RING_LEN2); | |
569 | writel(0x0, mmio + XMT_RING_LEN3); | |
570 | ||
571 | /* Clear XMT_RING_LIMIT */ | |
572 | writel(0x0, mmio + XMT_RING_LIMIT); | |
573 | ||
574 | /* Clear MIB */ | |
575 | writew(MIB_CLEAR, mmio + MIB_ADDR); | |
576 | ||
577 | /* Clear LARF */ | |
46c73ecc | 578 | amd8111e_writeq(*(u64 *)logic_filter, mmio + LADRF); |
1da177e4 LT |
579 | |
580 | /* SRAM_SIZE register */ | |
581 | reg_val = readl(mmio + SRAM_SIZE); | |
6aa20a22 | 582 | |
1da177e4 LT |
583 | if(lp->options & OPTION_JUMBO_ENABLE) |
584 | writel( VAL2|JUMBO, mmio + CMD3); | |
585 | #if AMD8111E_VLAN_TAG_USED | |
586 | writel(VAL2|VSIZE|VL_TAG_DEL, mmio + CMD3 ); | |
587 | #endif | |
588 | /* Set default value to CTRL1 Register */ | |
589 | writel(CTRL1_DEFAULT, mmio + CTRL1); | |
590 | ||
591 | /* To avoid PCI posting bug */ | |
592 | readl(mmio + CMD2); | |
593 | ||
594 | } | |
595 | ||
13a4fa43 VB |
596 | /* This function disables the interrupt and clears all the pending |
597 | * interrupts in INT0 | |
1da177e4 | 598 | */ |
46c73ecc | 599 | static void amd8111e_disable_interrupt(struct amd8111e_priv *lp) |
6aa20a22 | 600 | { |
1da177e4 LT |
601 | u32 intr0; |
602 | ||
603 | /* Disable interrupt */ | |
604 | writel(INTREN, lp->mmio + CMD0); | |
6aa20a22 | 605 | |
1da177e4 LT |
606 | /* Clear INT0 */ |
607 | intr0 = readl(lp->mmio + INT0); | |
608 | writel(intr0, lp->mmio + INT0); | |
6aa20a22 | 609 | |
1da177e4 LT |
610 | /* To avoid PCI posting bug */ |
611 | readl(lp->mmio + INT0); | |
612 | ||
613 | } | |
614 | ||
13a4fa43 | 615 | /* This function stops the chip. */ |
46c73ecc | 616 | static void amd8111e_stop_chip(struct amd8111e_priv *lp) |
1da177e4 LT |
617 | { |
618 | writel(RUN, lp->mmio + CMD0); | |
6aa20a22 | 619 | |
1da177e4 LT |
620 | /* To avoid PCI posting bug */ |
621 | readl(lp->mmio + CMD0); | |
622 | } | |
623 | ||
13a4fa43 | 624 | /* This function frees the transmiter and receiver descriptor rings. */ |
46c73ecc | 625 | static void amd8111e_free_ring(struct amd8111e_priv *lp) |
6aa20a22 | 626 | { |
1da177e4 LT |
627 | /* Free transmit and receive descriptor rings */ |
628 | if(lp->rx_ring){ | |
6aa20a22 | 629 | pci_free_consistent(lp->pci_dev, |
1da177e4 LT |
630 | sizeof(struct amd8111e_rx_dr)*NUM_RX_RING_DR, |
631 | lp->rx_ring, lp->rx_ring_dma_addr); | |
632 | lp->rx_ring = NULL; | |
633 | } | |
6aa20a22 | 634 | |
1da177e4 | 635 | if(lp->tx_ring){ |
6aa20a22 | 636 | pci_free_consistent(lp->pci_dev, |
1da177e4 LT |
637 | sizeof(struct amd8111e_tx_dr)*NUM_TX_RING_DR, |
638 | lp->tx_ring, lp->tx_ring_dma_addr); | |
639 | ||
640 | lp->tx_ring = NULL; | |
641 | } | |
642 | ||
643 | } | |
1da177e4 | 644 | |
13a4fa43 VB |
645 | /* This function will free all the transmit skbs that are actually |
646 | * transmitted by the device. It will check the ownership of the | |
647 | * skb before freeing the skb. | |
648 | */ | |
1da177e4 LT |
649 | static int amd8111e_tx(struct net_device *dev) |
650 | { | |
46c73ecc | 651 | struct amd8111e_priv *lp = netdev_priv(dev); |
1da177e4 LT |
652 | int tx_index = lp->tx_complete_idx & TX_RING_DR_MOD_MASK; |
653 | int status; | |
654 | /* Complete all the transmit packet */ | |
655 | while (lp->tx_complete_idx != lp->tx_idx){ | |
656 | tx_index = lp->tx_complete_idx & TX_RING_DR_MOD_MASK; | |
657 | status = le16_to_cpu(lp->tx_ring[tx_index].tx_flags); | |
658 | ||
659 | if(status & OWN_BIT) | |
660 | break; /* It still hasn't been Txed */ | |
661 | ||
662 | lp->tx_ring[tx_index].buff_phy_addr = 0; | |
663 | ||
664 | /* We must free the original skb */ | |
665 | if (lp->tx_skbuff[tx_index]) { | |
666 | pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[tx_index], | |
667 | lp->tx_skbuff[tx_index]->len, | |
668 | PCI_DMA_TODEVICE); | |
669 | dev_kfree_skb_irq (lp->tx_skbuff[tx_index]); | |
670 | lp->tx_skbuff[tx_index] = NULL; | |
671 | lp->tx_dma_addr[tx_index] = 0; | |
672 | } | |
673 | lp->tx_complete_idx++; | |
674 | /*COAL update tx coalescing parameters */ | |
675 | lp->coal_conf.tx_packets++; | |
05d2fec9 AV |
676 | lp->coal_conf.tx_bytes += |
677 | le16_to_cpu(lp->tx_ring[tx_index].buff_count); | |
1da177e4 LT |
678 | |
679 | if (netif_queue_stopped(dev) && | |
680 | lp->tx_complete_idx > lp->tx_idx - NUM_TX_BUFFERS +2){ | |
681 | /* The ring is no longer full, clear tbusy. */ | |
682 | /* lp->tx_full = 0; */ | |
683 | netif_wake_queue (dev); | |
684 | } | |
685 | } | |
686 | return 0; | |
687 | } | |
688 | ||
1da177e4 | 689 | /* This function handles the driver receive operation in polling mode */ |
bea3348e | 690 | static int amd8111e_rx_poll(struct napi_struct *napi, int budget) |
1da177e4 | 691 | { |
bea3348e SH |
692 | struct amd8111e_priv *lp = container_of(napi, struct amd8111e_priv, napi); |
693 | struct net_device *dev = lp->amd8111e_net_dev; | |
1da177e4 LT |
694 | int rx_index = lp->rx_idx & RX_RING_DR_MOD_MASK; |
695 | void __iomem *mmio = lp->mmio; | |
696 | struct sk_buff *skb,*new_skb; | |
697 | int min_pkt_len, status; | |
698 | unsigned int intr0; | |
699 | int num_rx_pkt = 0; | |
1da177e4 | 700 | short pkt_len; |
6aa20a22 | 701 | #if AMD8111E_VLAN_TAG_USED |
1da177e4 LT |
702 | short vtag; |
703 | #endif | |
bea3348e | 704 | int rx_pkt_limit = budget; |
dfa1b73f | 705 | unsigned long flags; |
6aa20a22 | 706 | |
278d5385 EB |
707 | if (rx_pkt_limit <= 0) |
708 | goto rx_not_empty; | |
709 | ||
6aa20a22 | 710 | do{ |
13a4fa43 VB |
711 | /* process receive packets until we use the quota. |
712 | * If we own the next entry, it's a new packet. Send it up. | |
713 | */ | |
1da177e4 LT |
714 | while(1) { |
715 | status = le16_to_cpu(lp->rx_ring[rx_index].rx_flags); | |
716 | if (status & OWN_BIT) | |
717 | break; | |
718 | ||
13a4fa43 | 719 | /* There is a tricky error noted by John Murphy, |
1da177e4 | 720 | * <murf@perftech.com> to Russ Nelson: Even with |
6aa20a22 JG |
721 | * full-sized * buffers it's possible for a |
722 | * jabber packet to use two buffers, with only | |
1da177e4 LT |
723 | * the last correctly noting the error. |
724 | */ | |
1da177e4 | 725 | if(status & ERR_BIT) { |
dbedd44e | 726 | /* resetting flags */ |
1da177e4 LT |
727 | lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS; |
728 | goto err_next_pkt; | |
729 | } | |
730 | /* check for STP and ENP */ | |
731 | if(!((status & STP_BIT) && (status & ENP_BIT))){ | |
dbedd44e | 732 | /* resetting flags */ |
1da177e4 LT |
733 | lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS; |
734 | goto err_next_pkt; | |
735 | } | |
736 | pkt_len = le16_to_cpu(lp->rx_ring[rx_index].msg_count) - 4; | |
737 | ||
6aa20a22 | 738 | #if AMD8111E_VLAN_TAG_USED |
1da177e4 | 739 | vtag = status & TT_MASK; |
6aa20a22 | 740 | /*MAC will strip vlan tag*/ |
c8d9e6dd | 741 | if (vtag != 0) |
1da177e4 LT |
742 | min_pkt_len =MIN_PKT_LEN - 4; |
743 | else | |
744 | #endif | |
745 | min_pkt_len =MIN_PKT_LEN; | |
746 | ||
747 | if (pkt_len < min_pkt_len) { | |
748 | lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS; | |
749 | lp->drv_rx_errors++; | |
750 | goto err_next_pkt; | |
751 | } | |
752 | if(--rx_pkt_limit < 0) | |
753 | goto rx_not_empty; | |
1d266430 PD |
754 | new_skb = netdev_alloc_skb(dev, lp->rx_buff_len); |
755 | if (!new_skb) { | |
6aa20a22 | 756 | /* if allocation fail, |
13a4fa43 VB |
757 | * ignore that pkt and go to next one |
758 | */ | |
1da177e4 LT |
759 | lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS; |
760 | lp->drv_rx_errors++; | |
761 | goto err_next_pkt; | |
762 | } | |
6aa20a22 | 763 | |
1da177e4 LT |
764 | skb_reserve(new_skb, 2); |
765 | skb = lp->rx_skbuff[rx_index]; | |
766 | pci_unmap_single(lp->pci_dev,lp->rx_dma_addr[rx_index], | |
767 | lp->rx_buff_len-2, PCI_DMA_FROMDEVICE); | |
768 | skb_put(skb, pkt_len); | |
1da177e4 | 769 | lp->rx_skbuff[rx_index] = new_skb; |
1da177e4 LT |
770 | lp->rx_dma_addr[rx_index] = pci_map_single(lp->pci_dev, |
771 | new_skb->data, | |
772 | lp->rx_buff_len-2, | |
773 | PCI_DMA_FROMDEVICE); | |
6aa20a22 | 774 | |
1da177e4 LT |
775 | skb->protocol = eth_type_trans(skb, dev); |
776 | ||
6aa20a22 | 777 | #if AMD8111E_VLAN_TAG_USED |
c8d9e6dd JP |
778 | if (vtag == TT_VLAN_TAGGED){ |
779 | u16 vlan_tag = le16_to_cpu(lp->rx_ring[rx_index].tag_ctrl_info); | |
86a9bad3 | 780 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tag); |
c8d9e6dd | 781 | } |
1da177e4 | 782 | #endif |
c8d9e6dd | 783 | netif_receive_skb(skb); |
1da177e4 LT |
784 | /*COAL update rx coalescing parameters*/ |
785 | lp->coal_conf.rx_packets++; | |
6aa20a22 | 786 | lp->coal_conf.rx_bytes += pkt_len; |
1da177e4 | 787 | num_rx_pkt++; |
6aa20a22 JG |
788 | |
789 | err_next_pkt: | |
1da177e4 LT |
790 | lp->rx_ring[rx_index].buff_phy_addr |
791 | = cpu_to_le32(lp->rx_dma_addr[rx_index]); | |
6aa20a22 | 792 | lp->rx_ring[rx_index].buff_count = |
1da177e4 LT |
793 | cpu_to_le16(lp->rx_buff_len-2); |
794 | wmb(); | |
795 | lp->rx_ring[rx_index].rx_flags |= cpu_to_le16(OWN_BIT); | |
796 | rx_index = (++lp->rx_idx) & RX_RING_DR_MOD_MASK; | |
797 | } | |
6aa20a22 | 798 | /* Check the interrupt status register for more packets in the |
13a4fa43 VB |
799 | * mean time. Process them since we have not used up our quota. |
800 | */ | |
1da177e4 LT |
801 | intr0 = readl(mmio + INT0); |
802 | /*Ack receive packets */ | |
803 | writel(intr0 & RINT0,mmio + INT0); | |
804 | ||
805 | } while(intr0 & RINT0); | |
806 | ||
48e5ecae CF |
807 | if (rx_pkt_limit > 0) { |
808 | /* Receive descriptor is empty now */ | |
809 | spin_lock_irqsave(&lp->lock, flags); | |
288379f0 | 810 | __napi_complete(napi); |
48e5ecae CF |
811 | writel(VAL0|RINTEN0, mmio + INTEN0); |
812 | writel(VAL2 | RDMD0, mmio + CMD0); | |
813 | spin_unlock_irqrestore(&lp->lock, flags); | |
814 | } | |
dfa1b73f | 815 | |
1da177e4 | 816 | rx_not_empty: |
bea3348e | 817 | return num_rx_pkt; |
1da177e4 LT |
818 | } |
819 | ||
13a4fa43 | 820 | /* This function will indicate the link status to the kernel. */ |
46c73ecc | 821 | static int amd8111e_link_change(struct net_device *dev) |
6aa20a22 | 822 | { |
1da177e4 LT |
823 | struct amd8111e_priv *lp = netdev_priv(dev); |
824 | int status0,speed; | |
825 | ||
826 | /* read the link change */ | |
827 | status0 = readl(lp->mmio + STAT0); | |
6aa20a22 | 828 | |
1da177e4 LT |
829 | if(status0 & LINK_STATS){ |
830 | if(status0 & AUTONEG_COMPLETE) | |
831 | lp->link_config.autoneg = AUTONEG_ENABLE; | |
6aa20a22 | 832 | else |
1da177e4 LT |
833 | lp->link_config.autoneg = AUTONEG_DISABLE; |
834 | ||
835 | if(status0 & FULL_DPLX) | |
836 | lp->link_config.duplex = DUPLEX_FULL; | |
6aa20a22 | 837 | else |
1da177e4 LT |
838 | lp->link_config.duplex = DUPLEX_HALF; |
839 | speed = (status0 & SPEED_MASK) >> 7; | |
840 | if(speed == PHY_SPEED_10) | |
841 | lp->link_config.speed = SPEED_10; | |
842 | else if(speed == PHY_SPEED_100) | |
843 | lp->link_config.speed = SPEED_100; | |
844 | ||
f7afbaa5 VB |
845 | netdev_info(dev, "Link is Up. Speed is %s Mbps %s Duplex\n", |
846 | (lp->link_config.speed == SPEED_100) ? | |
847 | "100" : "10", | |
848 | (lp->link_config.duplex == DUPLEX_FULL) ? | |
849 | "Full" : "Half"); | |
850 | ||
1da177e4 LT |
851 | netif_carrier_on(dev); |
852 | } | |
6aa20a22 | 853 | else{ |
1da177e4 LT |
854 | lp->link_config.speed = SPEED_INVALID; |
855 | lp->link_config.duplex = DUPLEX_INVALID; | |
856 | lp->link_config.autoneg = AUTONEG_INVALID; | |
f7afbaa5 | 857 | netdev_info(dev, "Link is Down.\n"); |
1da177e4 LT |
858 | netif_carrier_off(dev); |
859 | } | |
6aa20a22 | 860 | |
1da177e4 LT |
861 | return 0; |
862 | } | |
13a4fa43 VB |
863 | |
864 | /* This function reads the mib counters. */ | |
1da177e4 LT |
865 | static int amd8111e_read_mib(void __iomem *mmio, u8 MIB_COUNTER) |
866 | { | |
867 | unsigned int status; | |
868 | unsigned int data; | |
869 | unsigned int repeat = REPEAT_CNT; | |
870 | ||
871 | writew( MIB_RD_CMD | MIB_COUNTER, mmio + MIB_ADDR); | |
872 | do { | |
873 | status = readw(mmio + MIB_ADDR); | |
874 | udelay(2); /* controller takes MAX 2 us to get mib data */ | |
875 | } | |
876 | while (--repeat && (status & MIB_CMD_ACTIVE)); | |
877 | ||
878 | data = readl(mmio + MIB_DATA); | |
879 | return data; | |
880 | } | |
881 | ||
13a4fa43 | 882 | /* This function reads the mib registers and returns the hardware statistics. |
c3227e54 ED |
883 | * It updates previous internal driver statistics with new values. |
884 | */ | |
885 | static struct net_device_stats *amd8111e_get_stats(struct net_device *dev) | |
1da177e4 LT |
886 | { |
887 | struct amd8111e_priv *lp = netdev_priv(dev); | |
888 | void __iomem *mmio = lp->mmio; | |
889 | unsigned long flags; | |
c3227e54 | 890 | struct net_device_stats *new_stats = &dev->stats; |
6aa20a22 | 891 | |
c3227e54 ED |
892 | if (!lp->opened) |
893 | return new_stats; | |
1da177e4 LT |
894 | spin_lock_irqsave (&lp->lock, flags); |
895 | ||
896 | /* stats.rx_packets */ | |
897 | new_stats->rx_packets = amd8111e_read_mib(mmio, rcv_broadcast_pkts)+ | |
898 | amd8111e_read_mib(mmio, rcv_multicast_pkts)+ | |
899 | amd8111e_read_mib(mmio, rcv_unicast_pkts); | |
900 | ||
901 | /* stats.tx_packets */ | |
902 | new_stats->tx_packets = amd8111e_read_mib(mmio, xmt_packets); | |
903 | ||
904 | /*stats.rx_bytes */ | |
905 | new_stats->rx_bytes = amd8111e_read_mib(mmio, rcv_octets); | |
906 | ||
907 | /* stats.tx_bytes */ | |
908 | new_stats->tx_bytes = amd8111e_read_mib(mmio, xmt_octets); | |
909 | ||
910 | /* stats.rx_errors */ | |
911 | /* hw errors + errors driver reported */ | |
912 | new_stats->rx_errors = amd8111e_read_mib(mmio, rcv_undersize_pkts)+ | |
913 | amd8111e_read_mib(mmio, rcv_fragments)+ | |
914 | amd8111e_read_mib(mmio, rcv_jabbers)+ | |
915 | amd8111e_read_mib(mmio, rcv_alignment_errors)+ | |
916 | amd8111e_read_mib(mmio, rcv_fcs_errors)+ | |
917 | amd8111e_read_mib(mmio, rcv_miss_pkts)+ | |
918 | lp->drv_rx_errors; | |
919 | ||
920 | /* stats.tx_errors */ | |
921 | new_stats->tx_errors = amd8111e_read_mib(mmio, xmt_underrun_pkts); | |
922 | ||
923 | /* stats.rx_dropped*/ | |
924 | new_stats->rx_dropped = amd8111e_read_mib(mmio, rcv_miss_pkts); | |
925 | ||
926 | /* stats.tx_dropped*/ | |
927 | new_stats->tx_dropped = amd8111e_read_mib(mmio, xmt_underrun_pkts); | |
928 | ||
929 | /* stats.multicast*/ | |
930 | new_stats->multicast = amd8111e_read_mib(mmio, rcv_multicast_pkts); | |
931 | ||
932 | /* stats.collisions*/ | |
933 | new_stats->collisions = amd8111e_read_mib(mmio, xmt_collisions); | |
934 | ||
935 | /* stats.rx_length_errors*/ | |
6aa20a22 | 936 | new_stats->rx_length_errors = |
1da177e4 LT |
937 | amd8111e_read_mib(mmio, rcv_undersize_pkts)+ |
938 | amd8111e_read_mib(mmio, rcv_oversize_pkts); | |
939 | ||
940 | /* stats.rx_over_errors*/ | |
941 | new_stats->rx_over_errors = amd8111e_read_mib(mmio, rcv_miss_pkts); | |
942 | ||
943 | /* stats.rx_crc_errors*/ | |
944 | new_stats->rx_crc_errors = amd8111e_read_mib(mmio, rcv_fcs_errors); | |
945 | ||
946 | /* stats.rx_frame_errors*/ | |
947 | new_stats->rx_frame_errors = | |
948 | amd8111e_read_mib(mmio, rcv_alignment_errors); | |
949 | ||
950 | /* stats.rx_fifo_errors */ | |
951 | new_stats->rx_fifo_errors = amd8111e_read_mib(mmio, rcv_miss_pkts); | |
952 | ||
953 | /* stats.rx_missed_errors */ | |
954 | new_stats->rx_missed_errors = amd8111e_read_mib(mmio, rcv_miss_pkts); | |
955 | ||
956 | /* stats.tx_aborted_errors*/ | |
6aa20a22 | 957 | new_stats->tx_aborted_errors = |
1da177e4 LT |
958 | amd8111e_read_mib(mmio, xmt_excessive_collision); |
959 | ||
960 | /* stats.tx_carrier_errors*/ | |
6aa20a22 | 961 | new_stats->tx_carrier_errors = |
1da177e4 LT |
962 | amd8111e_read_mib(mmio, xmt_loss_carrier); |
963 | ||
964 | /* stats.tx_fifo_errors*/ | |
965 | new_stats->tx_fifo_errors = amd8111e_read_mib(mmio, xmt_underrun_pkts); | |
966 | ||
967 | /* stats.tx_window_errors*/ | |
968 | new_stats->tx_window_errors = | |
969 | amd8111e_read_mib(mmio, xmt_late_collision); | |
970 | ||
971 | /* Reset the mibs for collecting new statistics */ | |
972 | /* writew(MIB_CLEAR, mmio + MIB_ADDR);*/ | |
6aa20a22 | 973 | |
1da177e4 LT |
974 | spin_unlock_irqrestore (&lp->lock, flags); |
975 | ||
976 | return new_stats; | |
977 | } | |
13a4fa43 | 978 | |
3a4fa0a2 | 979 | /* This function recalculate the interrupt coalescing mode on every interrupt |
13a4fa43 VB |
980 | * according to the datarate and the packet rate. |
981 | */ | |
1da177e4 LT |
982 | static int amd8111e_calc_coalesce(struct net_device *dev) |
983 | { | |
984 | struct amd8111e_priv *lp = netdev_priv(dev); | |
46c73ecc | 985 | struct amd8111e_coalesce_conf *coal_conf = &lp->coal_conf; |
1da177e4 LT |
986 | int tx_pkt_rate; |
987 | int rx_pkt_rate; | |
988 | int tx_data_rate; | |
989 | int rx_data_rate; | |
990 | int rx_pkt_size; | |
991 | int tx_pkt_size; | |
992 | ||
993 | tx_pkt_rate = coal_conf->tx_packets - coal_conf->tx_prev_packets; | |
994 | coal_conf->tx_prev_packets = coal_conf->tx_packets; | |
6aa20a22 | 995 | |
1da177e4 LT |
996 | tx_data_rate = coal_conf->tx_bytes - coal_conf->tx_prev_bytes; |
997 | coal_conf->tx_prev_bytes = coal_conf->tx_bytes; | |
6aa20a22 | 998 | |
1da177e4 LT |
999 | rx_pkt_rate = coal_conf->rx_packets - coal_conf->rx_prev_packets; |
1000 | coal_conf->rx_prev_packets = coal_conf->rx_packets; | |
6aa20a22 | 1001 | |
1da177e4 LT |
1002 | rx_data_rate = coal_conf->rx_bytes - coal_conf->rx_prev_bytes; |
1003 | coal_conf->rx_prev_bytes = coal_conf->rx_bytes; | |
6aa20a22 | 1004 | |
1da177e4 LT |
1005 | if(rx_pkt_rate < 800){ |
1006 | if(coal_conf->rx_coal_type != NO_COALESCE){ | |
6aa20a22 | 1007 | |
1da177e4 LT |
1008 | coal_conf->rx_timeout = 0x0; |
1009 | coal_conf->rx_event_count = 0; | |
1010 | amd8111e_set_coalesce(dev,RX_INTR_COAL); | |
1011 | coal_conf->rx_coal_type = NO_COALESCE; | |
1012 | } | |
1013 | } | |
1014 | else{ | |
6aa20a22 | 1015 | |
1da177e4 LT |
1016 | rx_pkt_size = rx_data_rate/rx_pkt_rate; |
1017 | if (rx_pkt_size < 128){ | |
1018 | if(coal_conf->rx_coal_type != NO_COALESCE){ | |
6aa20a22 | 1019 | |
1da177e4 LT |
1020 | coal_conf->rx_timeout = 0; |
1021 | coal_conf->rx_event_count = 0; | |
1022 | amd8111e_set_coalesce(dev,RX_INTR_COAL); | |
1023 | coal_conf->rx_coal_type = NO_COALESCE; | |
1024 | } | |
1025 | ||
1026 | } | |
1027 | else if ( (rx_pkt_size >= 128) && (rx_pkt_size < 512) ){ | |
6aa20a22 | 1028 | |
1da177e4 LT |
1029 | if(coal_conf->rx_coal_type != LOW_COALESCE){ |
1030 | coal_conf->rx_timeout = 1; | |
1031 | coal_conf->rx_event_count = 4; | |
1032 | amd8111e_set_coalesce(dev,RX_INTR_COAL); | |
1033 | coal_conf->rx_coal_type = LOW_COALESCE; | |
1034 | } | |
1035 | } | |
1036 | else if ((rx_pkt_size >= 512) && (rx_pkt_size < 1024)){ | |
6aa20a22 | 1037 | |
1da177e4 LT |
1038 | if(coal_conf->rx_coal_type != MEDIUM_COALESCE){ |
1039 | coal_conf->rx_timeout = 1; | |
1040 | coal_conf->rx_event_count = 4; | |
1041 | amd8111e_set_coalesce(dev,RX_INTR_COAL); | |
1042 | coal_conf->rx_coal_type = MEDIUM_COALESCE; | |
6aa20a22 JG |
1043 | } |
1044 | ||
1da177e4 LT |
1045 | } |
1046 | else if(rx_pkt_size >= 1024){ | |
1047 | if(coal_conf->rx_coal_type != HIGH_COALESCE){ | |
1048 | coal_conf->rx_timeout = 2; | |
1049 | coal_conf->rx_event_count = 3; | |
1050 | amd8111e_set_coalesce(dev,RX_INTR_COAL); | |
1051 | coal_conf->rx_coal_type = HIGH_COALESCE; | |
6aa20a22 | 1052 | } |
1da177e4 LT |
1053 | } |
1054 | } | |
1055 | /* NOW FOR TX INTR COALESC */ | |
1056 | if(tx_pkt_rate < 800){ | |
1057 | if(coal_conf->tx_coal_type != NO_COALESCE){ | |
6aa20a22 | 1058 | |
1da177e4 LT |
1059 | coal_conf->tx_timeout = 0x0; |
1060 | coal_conf->tx_event_count = 0; | |
1061 | amd8111e_set_coalesce(dev,TX_INTR_COAL); | |
1062 | coal_conf->tx_coal_type = NO_COALESCE; | |
1063 | } | |
1064 | } | |
1065 | else{ | |
6aa20a22 | 1066 | |
1da177e4 LT |
1067 | tx_pkt_size = tx_data_rate/tx_pkt_rate; |
1068 | if (tx_pkt_size < 128){ | |
6aa20a22 | 1069 | |
1da177e4 | 1070 | if(coal_conf->tx_coal_type != NO_COALESCE){ |
6aa20a22 | 1071 | |
1da177e4 LT |
1072 | coal_conf->tx_timeout = 0; |
1073 | coal_conf->tx_event_count = 0; | |
1074 | amd8111e_set_coalesce(dev,TX_INTR_COAL); | |
1075 | coal_conf->tx_coal_type = NO_COALESCE; | |
1076 | } | |
1077 | ||
1078 | } | |
1079 | else if ( (tx_pkt_size >= 128) && (tx_pkt_size < 512) ){ | |
6aa20a22 | 1080 | |
1da177e4 LT |
1081 | if(coal_conf->tx_coal_type != LOW_COALESCE){ |
1082 | coal_conf->tx_timeout = 1; | |
1083 | coal_conf->tx_event_count = 2; | |
1084 | amd8111e_set_coalesce(dev,TX_INTR_COAL); | |
1085 | coal_conf->tx_coal_type = LOW_COALESCE; | |
1086 | ||
1087 | } | |
1088 | } | |
1089 | else if ((tx_pkt_size >= 512) && (tx_pkt_size < 1024)){ | |
6aa20a22 | 1090 | |
1da177e4 LT |
1091 | if(coal_conf->tx_coal_type != MEDIUM_COALESCE){ |
1092 | coal_conf->tx_timeout = 2; | |
1093 | coal_conf->tx_event_count = 5; | |
1094 | amd8111e_set_coalesce(dev,TX_INTR_COAL); | |
1095 | coal_conf->tx_coal_type = MEDIUM_COALESCE; | |
6aa20a22 JG |
1096 | } |
1097 | ||
1da177e4 LT |
1098 | } |
1099 | else if(tx_pkt_size >= 1024){ | |
1100 | if (tx_pkt_size >= 1024){ | |
1101 | if(coal_conf->tx_coal_type != HIGH_COALESCE){ | |
1102 | coal_conf->tx_timeout = 4; | |
1103 | coal_conf->tx_event_count = 8; | |
1104 | amd8111e_set_coalesce(dev,TX_INTR_COAL); | |
1105 | coal_conf->tx_coal_type = HIGH_COALESCE; | |
6aa20a22 | 1106 | } |
1da177e4 LT |
1107 | } |
1108 | } | |
1109 | } | |
1110 | return 0; | |
1111 | ||
1112 | } | |
13a4fa43 VB |
1113 | |
1114 | /* This is device interrupt function. It handles transmit, | |
1115 | * receive,link change and hardware timer interrupts. | |
1116 | */ | |
7d12e780 | 1117 | static irqreturn_t amd8111e_interrupt(int irq, void *dev_id) |
1da177e4 LT |
1118 | { |
1119 | ||
46c73ecc | 1120 | struct net_device *dev = (struct net_device *)dev_id; |
1da177e4 LT |
1121 | struct amd8111e_priv *lp = netdev_priv(dev); |
1122 | void __iomem *mmio = lp->mmio; | |
dfa1b73f | 1123 | unsigned int intr0, intren0; |
1da177e4 LT |
1124 | unsigned int handled = 1; |
1125 | ||
dfa1b73f | 1126 | if(unlikely(dev == NULL)) |
1da177e4 LT |
1127 | return IRQ_NONE; |
1128 | ||
dfa1b73f LT |
1129 | spin_lock(&lp->lock); |
1130 | ||
1da177e4 LT |
1131 | /* disabling interrupt */ |
1132 | writel(INTREN, mmio + CMD0); | |
1133 | ||
1134 | /* Read interrupt status */ | |
1135 | intr0 = readl(mmio + INT0); | |
dfa1b73f | 1136 | intren0 = readl(mmio + INTEN0); |
1da177e4 LT |
1137 | |
1138 | /* Process all the INT event until INTR bit is clear. */ | |
1139 | ||
1140 | if (!(intr0 & INTR)){ | |
1141 | handled = 0; | |
1142 | goto err_no_interrupt; | |
1143 | } | |
6aa20a22 | 1144 | |
1da177e4 LT |
1145 | /* Current driver processes 4 interrupts : RINT,TINT,LCINT,STINT */ |
1146 | writel(intr0, mmio + INT0); | |
1147 | ||
1148 | /* Check if Receive Interrupt has occurred. */ | |
6ba33ac8 | 1149 | if (intr0 & RINT0) { |
288379f0 | 1150 | if (napi_schedule_prep(&lp->napi)) { |
1da177e4 LT |
1151 | /* Disable receive interupts */ |
1152 | writel(RINTEN0, mmio + INTEN0); | |
1153 | /* Schedule a polling routine */ | |
288379f0 | 1154 | __napi_schedule(&lp->napi); |
6ba33ac8 | 1155 | } else if (intren0 & RINTEN0) { |
f7afbaa5 | 1156 | netdev_dbg(dev, "************Driver bug! interrupt while in poll\n"); |
dfa1b73f LT |
1157 | /* Fix by disable receive interrupts */ |
1158 | writel(RINTEN0, mmio + INTEN0); | |
1da177e4 LT |
1159 | } |
1160 | } | |
6ba33ac8 | 1161 | |
1da177e4 | 1162 | /* Check if Transmit Interrupt has occurred. */ |
6ba33ac8 | 1163 | if (intr0 & TINT0) |
1da177e4 | 1164 | amd8111e_tx(dev); |
6aa20a22 | 1165 | |
1da177e4 LT |
1166 | /* Check if Link Change Interrupt has occurred. */ |
1167 | if (intr0 & LCINT) | |
1168 | amd8111e_link_change(dev); | |
1169 | ||
1170 | /* Check if Hardware Timer Interrupt has occurred. */ | |
1171 | if (intr0 & STINT) | |
1172 | amd8111e_calc_coalesce(dev); | |
1173 | ||
1174 | err_no_interrupt: | |
1175 | writel( VAL0 | INTREN,mmio + CMD0); | |
6aa20a22 | 1176 | |
dfa1b73f | 1177 | spin_unlock(&lp->lock); |
6aa20a22 | 1178 | |
1da177e4 LT |
1179 | return IRQ_RETVAL(handled); |
1180 | } | |
1181 | ||
1182 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1183 | static void amd8111e_poll(struct net_device *dev) | |
6aa20a22 | 1184 | { |
1da177e4 | 1185 | unsigned long flags; |
b7e36bfa | 1186 | local_irq_save(flags); |
7d12e780 | 1187 | amd8111e_interrupt(0, dev); |
6aa20a22 JG |
1188 | local_irq_restore(flags); |
1189 | } | |
1da177e4 LT |
1190 | #endif |
1191 | ||
1192 | ||
13a4fa43 VB |
1193 | /* This function closes the network interface and updates |
1194 | * the statistics so that most recent statistics will be | |
1195 | * available after the interface is down. | |
1196 | */ | |
46c73ecc | 1197 | static int amd8111e_close(struct net_device *dev) |
1da177e4 LT |
1198 | { |
1199 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1200 | netif_stop_queue(dev); | |
6aa20a22 | 1201 | |
bea3348e SH |
1202 | napi_disable(&lp->napi); |
1203 | ||
1da177e4 | 1204 | spin_lock_irq(&lp->lock); |
6aa20a22 | 1205 | |
1da177e4 LT |
1206 | amd8111e_disable_interrupt(lp); |
1207 | amd8111e_stop_chip(lp); | |
e83603fd CL |
1208 | |
1209 | /* Free transmit and receive skbs */ | |
1210 | amd8111e_free_skbs(lp->amd8111e_net_dev); | |
6aa20a22 | 1211 | |
1da177e4 LT |
1212 | netif_carrier_off(lp->amd8111e_net_dev); |
1213 | ||
1214 | /* Delete ipg timer */ | |
6aa20a22 | 1215 | if(lp->options & OPTION_DYN_IPG_ENABLE) |
1da177e4 LT |
1216 | del_timer_sync(&lp->ipg_data.ipg_timer); |
1217 | ||
1218 | spin_unlock_irq(&lp->lock); | |
1219 | free_irq(dev->irq, dev); | |
e83603fd | 1220 | amd8111e_free_ring(lp); |
6aa20a22 | 1221 | |
1da177e4 LT |
1222 | /* Update the statistics before closing */ |
1223 | amd8111e_get_stats(dev); | |
1224 | lp->opened = 0; | |
1225 | return 0; | |
1226 | } | |
13a4fa43 VB |
1227 | |
1228 | /* This function opens new interface.It requests irq for the device, | |
1229 | * initializes the device,buffers and descriptors, and starts the device. | |
1230 | */ | |
46c73ecc | 1231 | static int amd8111e_open(struct net_device *dev) |
1da177e4 LT |
1232 | { |
1233 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1234 | ||
1fb9df5d | 1235 | if(dev->irq ==0 || request_irq(dev->irq, amd8111e_interrupt, IRQF_SHARED, |
6aa20a22 | 1236 | dev->name, dev)) |
1da177e4 LT |
1237 | return -EAGAIN; |
1238 | ||
bea3348e SH |
1239 | napi_enable(&lp->napi); |
1240 | ||
1da177e4 LT |
1241 | spin_lock_irq(&lp->lock); |
1242 | ||
1243 | amd8111e_init_hw_default(lp); | |
1244 | ||
1245 | if(amd8111e_restart(dev)){ | |
1246 | spin_unlock_irq(&lp->lock); | |
bea3348e | 1247 | napi_disable(&lp->napi); |
1da177e4 LT |
1248 | if (dev->irq) |
1249 | free_irq(dev->irq, dev); | |
1250 | return -ENOMEM; | |
1251 | } | |
1252 | /* Start ipg timer */ | |
6aa20a22 | 1253 | if(lp->options & OPTION_DYN_IPG_ENABLE){ |
1da177e4 | 1254 | add_timer(&lp->ipg_data.ipg_timer); |
f7afbaa5 | 1255 | netdev_info(dev, "Dynamic IPG Enabled\n"); |
1da177e4 LT |
1256 | } |
1257 | ||
1258 | lp->opened = 1; | |
1259 | ||
1260 | spin_unlock_irq(&lp->lock); | |
1261 | ||
1262 | netif_start_queue(dev); | |
1263 | ||
6aa20a22 | 1264 | return 0; |
1da177e4 | 1265 | } |
13a4fa43 VB |
1266 | |
1267 | /* This function checks if there is any transmit descriptors | |
1268 | * available to queue more packet. | |
1269 | */ | |
46c73ecc | 1270 | static int amd8111e_tx_queue_avail(struct amd8111e_priv *lp) |
6aa20a22 | 1271 | { |
1da177e4 | 1272 | int tx_index = lp->tx_idx & TX_BUFF_MOD_MASK; |
ee41a82f | 1273 | if (lp->tx_skbuff[tx_index]) |
1da177e4 LT |
1274 | return -1; |
1275 | else | |
1276 | return 0; | |
6aa20a22 | 1277 | |
1da177e4 | 1278 | } |
1da177e4 | 1279 | |
13a4fa43 VB |
1280 | /* This function will queue the transmit packets to the |
1281 | * descriptors and will trigger the send operation. It also | |
1282 | * initializes the transmit descriptors with buffer physical address, | |
1283 | * byte count, ownership to hardware etc. | |
1284 | */ | |
61357325 | 1285 | static netdev_tx_t amd8111e_start_xmit(struct sk_buff *skb, |
46c73ecc | 1286 | struct net_device *dev) |
1da177e4 LT |
1287 | { |
1288 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1289 | int tx_index; | |
1290 | unsigned long flags; | |
1291 | ||
1292 | spin_lock_irqsave(&lp->lock, flags); | |
1293 | ||
1294 | tx_index = lp->tx_idx & TX_RING_DR_MOD_MASK; | |
1295 | ||
1296 | lp->tx_ring[tx_index].buff_count = cpu_to_le16(skb->len); | |
1297 | ||
1298 | lp->tx_skbuff[tx_index] = skb; | |
1299 | lp->tx_ring[tx_index].tx_flags = 0; | |
1300 | ||
1301 | #if AMD8111E_VLAN_TAG_USED | |
df8a39de | 1302 | if (skb_vlan_tag_present(skb)) { |
6aa20a22 JG |
1303 | lp->tx_ring[tx_index].tag_ctrl_cmd |= |
1304 | cpu_to_le16(TCC_VLAN_INSERT); | |
1305 | lp->tx_ring[tx_index].tag_ctrl_info = | |
df8a39de | 1306 | cpu_to_le16(skb_vlan_tag_get(skb)); |
1da177e4 LT |
1307 | |
1308 | } | |
1309 | #endif | |
1310 | lp->tx_dma_addr[tx_index] = | |
1311 | pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE); | |
1312 | lp->tx_ring[tx_index].buff_phy_addr = | |
ee41a82f | 1313 | cpu_to_le32(lp->tx_dma_addr[tx_index]); |
1da177e4 LT |
1314 | |
1315 | /* Set FCS and LTINT bits */ | |
1316 | wmb(); | |
1317 | lp->tx_ring[tx_index].tx_flags |= | |
1318 | cpu_to_le16(OWN_BIT | STP_BIT | ENP_BIT|ADD_FCS_BIT|LTINT_BIT); | |
1319 | ||
1320 | lp->tx_idx++; | |
1321 | ||
1322 | /* Trigger an immediate send poll. */ | |
1323 | writel( VAL1 | TDMD0, lp->mmio + CMD0); | |
1324 | writel( VAL2 | RDMD0,lp->mmio + CMD0); | |
1325 | ||
1da177e4 LT |
1326 | if(amd8111e_tx_queue_avail(lp) < 0){ |
1327 | netif_stop_queue(dev); | |
1328 | } | |
1329 | spin_unlock_irqrestore(&lp->lock, flags); | |
6ed10654 | 1330 | return NETDEV_TX_OK; |
1da177e4 | 1331 | } |
13a4fa43 | 1332 | /* This function returns all the memory mapped registers of the device. */ |
1da177e4 LT |
1333 | static void amd8111e_read_regs(struct amd8111e_priv *lp, u32 *buf) |
1334 | { | |
1335 | void __iomem *mmio = lp->mmio; | |
1336 | /* Read only necessary registers */ | |
1337 | buf[0] = readl(mmio + XMT_RING_BASE_ADDR0); | |
1338 | buf[1] = readl(mmio + XMT_RING_LEN0); | |
1339 | buf[2] = readl(mmio + RCV_RING_BASE_ADDR0); | |
1340 | buf[3] = readl(mmio + RCV_RING_LEN0); | |
1341 | buf[4] = readl(mmio + CMD0); | |
1342 | buf[5] = readl(mmio + CMD2); | |
1343 | buf[6] = readl(mmio + CMD3); | |
1344 | buf[7] = readl(mmio + CMD7); | |
1345 | buf[8] = readl(mmio + INT0); | |
1346 | buf[9] = readl(mmio + INTEN0); | |
1347 | buf[10] = readl(mmio + LADRF); | |
1348 | buf[11] = readl(mmio + LADRF+4); | |
1349 | buf[12] = readl(mmio + STAT0); | |
1350 | } | |
1351 | ||
6aa20a22 | 1352 | |
13a4fa43 VB |
1353 | /* This function sets promiscuos mode, all-multi mode or the multicast address |
1354 | * list to the device. | |
1355 | */ | |
1da177e4 LT |
1356 | static void amd8111e_set_multicast_list(struct net_device *dev) |
1357 | { | |
22bedad3 | 1358 | struct netdev_hw_addr *ha; |
1da177e4 LT |
1359 | struct amd8111e_priv *lp = netdev_priv(dev); |
1360 | u32 mc_filter[2] ; | |
0ddf477b JP |
1361 | int bit_num; |
1362 | ||
1da177e4 | 1363 | if(dev->flags & IFF_PROMISC){ |
1da177e4 LT |
1364 | writel( VAL2 | PROM, lp->mmio + CMD2); |
1365 | return; | |
1366 | } | |
1367 | else | |
1368 | writel( PROM, lp->mmio + CMD2); | |
4cd24eaf JP |
1369 | if (dev->flags & IFF_ALLMULTI || |
1370 | netdev_mc_count(dev) > MAX_FILTER_SIZE) { | |
1da177e4 LT |
1371 | /* get all multicast packet */ |
1372 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
1da177e4 | 1373 | lp->options |= OPTION_MULTICAST_ENABLE; |
46c73ecc | 1374 | amd8111e_writeq(*(u64 *)mc_filter, lp->mmio + LADRF); |
1da177e4 LT |
1375 | return; |
1376 | } | |
4cd24eaf | 1377 | if (netdev_mc_empty(dev)) { |
1da177e4 LT |
1378 | /* get only own packets */ |
1379 | mc_filter[1] = mc_filter[0] = 0; | |
1da177e4 | 1380 | lp->options &= ~OPTION_MULTICAST_ENABLE; |
46c73ecc | 1381 | amd8111e_writeq(*(u64 *)mc_filter, lp->mmio + LADRF); |
25985edc | 1382 | /* disable promiscuous mode */ |
1da177e4 LT |
1383 | writel(PROM, lp->mmio + CMD2); |
1384 | return; | |
1385 | } | |
1386 | /* load all the multicast addresses in the logic filter */ | |
1387 | lp->options |= OPTION_MULTICAST_ENABLE; | |
1da177e4 | 1388 | mc_filter[1] = mc_filter[0] = 0; |
22bedad3 JP |
1389 | netdev_for_each_mc_addr(ha, dev) { |
1390 | bit_num = (ether_crc_le(ETH_ALEN, ha->addr) >> 26) & 0x3f; | |
1da177e4 | 1391 | mc_filter[bit_num >> 5] |= 1 << (bit_num & 31); |
6aa20a22 | 1392 | } |
46c73ecc | 1393 | amd8111e_writeq(*(u64 *)mc_filter, lp->mmio + LADRF); |
1da177e4 LT |
1394 | |
1395 | /* To eliminate PCI posting bug */ | |
1396 | readl(lp->mmio + CMD2); | |
1397 | ||
1398 | } | |
1399 | ||
46c73ecc VB |
1400 | static void amd8111e_get_drvinfo(struct net_device *dev, |
1401 | struct ethtool_drvinfo *info) | |
1da177e4 LT |
1402 | { |
1403 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1404 | struct pci_dev *pci_dev = lp->pci_dev; | |
23020ab3 RJ |
1405 | strlcpy(info->driver, MODULE_NAME, sizeof(info->driver)); |
1406 | strlcpy(info->version, MODULE_VERS, sizeof(info->version)); | |
1407 | snprintf(info->fw_version, sizeof(info->fw_version), | |
1408 | "%u", chip_version); | |
1409 | strlcpy(info->bus_info, pci_name(pci_dev), sizeof(info->bus_info)); | |
1da177e4 LT |
1410 | } |
1411 | ||
1412 | static int amd8111e_get_regs_len(struct net_device *dev) | |
1413 | { | |
1414 | return AMD8111E_REG_DUMP_LEN; | |
1415 | } | |
1416 | ||
1417 | static void amd8111e_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf) | |
1418 | { | |
1419 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1420 | regs->version = 0; | |
1421 | amd8111e_read_regs(lp, buf); | |
1422 | } | |
1423 | ||
1424 | static int amd8111e_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1425 | { | |
1426 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1427 | spin_lock_irq(&lp->lock); | |
1428 | mii_ethtool_gset(&lp->mii_if, ecmd); | |
1429 | spin_unlock_irq(&lp->lock); | |
1430 | return 0; | |
1431 | } | |
1432 | ||
1433 | static int amd8111e_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1434 | { | |
1435 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1436 | int res; | |
1437 | spin_lock_irq(&lp->lock); | |
1438 | res = mii_ethtool_sset(&lp->mii_if, ecmd); | |
1439 | spin_unlock_irq(&lp->lock); | |
1440 | return res; | |
1441 | } | |
1442 | ||
1443 | static int amd8111e_nway_reset(struct net_device *dev) | |
1444 | { | |
1445 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1446 | return mii_nway_restart(&lp->mii_if); | |
1447 | } | |
1448 | ||
1449 | static u32 amd8111e_get_link(struct net_device *dev) | |
1450 | { | |
1451 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1452 | return mii_link_ok(&lp->mii_if); | |
1453 | } | |
1454 | ||
1455 | static void amd8111e_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol_info) | |
1456 | { | |
1457 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1458 | wol_info->supported = WAKE_MAGIC|WAKE_PHY; | |
1459 | if (lp->options & OPTION_WOL_ENABLE) | |
1460 | wol_info->wolopts = WAKE_MAGIC; | |
1461 | } | |
1462 | ||
1463 | static int amd8111e_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol_info) | |
1464 | { | |
1465 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1466 | if (wol_info->wolopts & ~(WAKE_MAGIC|WAKE_PHY)) | |
1467 | return -EINVAL; | |
1468 | spin_lock_irq(&lp->lock); | |
1469 | if (wol_info->wolopts & WAKE_MAGIC) | |
6aa20a22 | 1470 | lp->options |= |
1da177e4 LT |
1471 | (OPTION_WOL_ENABLE | OPTION_WAKE_MAGIC_ENABLE); |
1472 | else if(wol_info->wolopts & WAKE_PHY) | |
6aa20a22 | 1473 | lp->options |= |
1da177e4 LT |
1474 | (OPTION_WOL_ENABLE | OPTION_WAKE_PHY_ENABLE); |
1475 | else | |
6aa20a22 | 1476 | lp->options &= ~OPTION_WOL_ENABLE; |
1da177e4 LT |
1477 | spin_unlock_irq(&lp->lock); |
1478 | return 0; | |
1479 | } | |
1480 | ||
7282d491 | 1481 | static const struct ethtool_ops ops = { |
1da177e4 LT |
1482 | .get_drvinfo = amd8111e_get_drvinfo, |
1483 | .get_regs_len = amd8111e_get_regs_len, | |
1484 | .get_regs = amd8111e_get_regs, | |
1485 | .get_settings = amd8111e_get_settings, | |
1486 | .set_settings = amd8111e_set_settings, | |
1487 | .nway_reset = amd8111e_nway_reset, | |
1488 | .get_link = amd8111e_get_link, | |
1489 | .get_wol = amd8111e_get_wol, | |
1490 | .set_wol = amd8111e_set_wol, | |
1491 | }; | |
1492 | ||
13a4fa43 VB |
1493 | /* This function handles all the ethtool ioctls. It gives driver info, |
1494 | * gets/sets driver speed, gets memory mapped register values, forces | |
1495 | * auto negotiation, sets/gets WOL options for ethtool application. | |
1496 | */ | |
46c73ecc | 1497 | static int amd8111e_ioctl(struct net_device *dev , struct ifreq *ifr, int cmd) |
1da177e4 LT |
1498 | { |
1499 | struct mii_ioctl_data *data = if_mii(ifr); | |
1500 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1501 | int err; | |
1502 | u32 mii_regval; | |
1503 | ||
1da177e4 LT |
1504 | switch(cmd) { |
1505 | case SIOCGMIIPHY: | |
1506 | data->phy_id = lp->ext_phy_addr; | |
1507 | ||
1508 | /* fallthru */ | |
6aa20a22 | 1509 | case SIOCGMIIREG: |
1da177e4 LT |
1510 | |
1511 | spin_lock_irq(&lp->lock); | |
1512 | err = amd8111e_read_phy(lp, data->phy_id, | |
1513 | data->reg_num & PHY_REG_ADDR_MASK, &mii_regval); | |
1514 | spin_unlock_irq(&lp->lock); | |
1515 | ||
1516 | data->val_out = mii_regval; | |
1517 | return err; | |
1518 | ||
1519 | case SIOCSMIIREG: | |
1520 | ||
1521 | spin_lock_irq(&lp->lock); | |
1522 | err = amd8111e_write_phy(lp, data->phy_id, | |
1523 | data->reg_num & PHY_REG_ADDR_MASK, data->val_in); | |
1524 | spin_unlock_irq(&lp->lock); | |
1525 | ||
1526 | return err; | |
1527 | ||
1528 | default: | |
1529 | /* do nothing */ | |
1530 | break; | |
1531 | } | |
1532 | return -EOPNOTSUPP; | |
1533 | } | |
1534 | static int amd8111e_set_mac_address(struct net_device *dev, void *p) | |
1535 | { | |
1536 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1537 | int i; | |
1538 | struct sockaddr *addr = p; | |
1539 | ||
1540 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
1541 | spin_lock_irq(&lp->lock); | |
1542 | /* Setting the MAC address to the device */ | |
c857ff6e | 1543 | for (i = 0; i < ETH_ALEN; i++) |
6aa20a22 JG |
1544 | writeb( dev->dev_addr[i], lp->mmio + PADR + i ); |
1545 | ||
1da177e4 LT |
1546 | spin_unlock_irq(&lp->lock); |
1547 | ||
1548 | return 0; | |
1549 | } | |
1550 | ||
13a4fa43 VB |
1551 | /* This function changes the mtu of the device. It restarts the device to |
1552 | * initialize the descriptor with new receive buffers. | |
1553 | */ | |
1da177e4 LT |
1554 | static int amd8111e_change_mtu(struct net_device *dev, int new_mtu) |
1555 | { | |
1556 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1557 | int err; | |
1558 | ||
1559 | if ((new_mtu < AMD8111E_MIN_MTU) || (new_mtu > AMD8111E_MAX_MTU)) | |
1560 | return -EINVAL; | |
1561 | ||
1562 | if (!netif_running(dev)) { | |
1563 | /* new_mtu will be used | |
13a4fa43 VB |
1564 | * when device starts netxt time |
1565 | */ | |
1da177e4 LT |
1566 | dev->mtu = new_mtu; |
1567 | return 0; | |
1568 | } | |
1569 | ||
1570 | spin_lock_irq(&lp->lock); | |
1571 | ||
1572 | /* stop the chip */ | |
1573 | writel(RUN, lp->mmio + CMD0); | |
1574 | ||
1575 | dev->mtu = new_mtu; | |
1576 | ||
1577 | err = amd8111e_restart(dev); | |
1578 | spin_unlock_irq(&lp->lock); | |
1579 | if(!err) | |
1580 | netif_start_queue(dev); | |
1581 | return err; | |
1582 | } | |
1583 | ||
46c73ecc | 1584 | static int amd8111e_enable_magicpkt(struct amd8111e_priv *lp) |
1da177e4 LT |
1585 | { |
1586 | writel( VAL1|MPPLBA, lp->mmio + CMD3); | |
1587 | writel( VAL0|MPEN_SW, lp->mmio + CMD7); | |
1588 | ||
1589 | /* To eliminate PCI posting bug */ | |
1590 | readl(lp->mmio + CMD7); | |
1591 | return 0; | |
1592 | } | |
1593 | ||
46c73ecc | 1594 | static int amd8111e_enable_link_change(struct amd8111e_priv *lp) |
1da177e4 LT |
1595 | { |
1596 | ||
1597 | /* Adapter is already stoped/suspended/interrupt-disabled */ | |
1598 | writel(VAL0|LCMODE_SW,lp->mmio + CMD7); | |
6aa20a22 | 1599 | |
1da177e4 LT |
1600 | /* To eliminate PCI posting bug */ |
1601 | readl(lp->mmio + CMD7); | |
1602 | return 0; | |
6aa20a22 | 1603 | } |
1da177e4 | 1604 | |
13a4fa43 | 1605 | /* This function is called when a packet transmission fails to complete |
af901ca1 AGR |
1606 | * within a reasonable period, on the assumption that an interrupt have |
1607 | * failed or the interface is locked up. This function will reinitialize | |
1608 | * the hardware. | |
1609 | */ | |
1da177e4 LT |
1610 | static void amd8111e_tx_timeout(struct net_device *dev) |
1611 | { | |
46c73ecc | 1612 | struct amd8111e_priv *lp = netdev_priv(dev); |
1da177e4 LT |
1613 | int err; |
1614 | ||
f7afbaa5 VB |
1615 | netdev_err(dev, "transmit timed out, resetting\n"); |
1616 | ||
1da177e4 LT |
1617 | spin_lock_irq(&lp->lock); |
1618 | err = amd8111e_restart(dev); | |
1619 | spin_unlock_irq(&lp->lock); | |
1620 | if(!err) | |
1621 | netif_wake_queue(dev); | |
1622 | } | |
1623 | static int amd8111e_suspend(struct pci_dev *pci_dev, pm_message_t state) | |
6aa20a22 | 1624 | { |
1da177e4 LT |
1625 | struct net_device *dev = pci_get_drvdata(pci_dev); |
1626 | struct amd8111e_priv *lp = netdev_priv(dev); | |
6aa20a22 | 1627 | |
1da177e4 LT |
1628 | if (!netif_running(dev)) |
1629 | return 0; | |
1630 | ||
1631 | /* disable the interrupt */ | |
1632 | spin_lock_irq(&lp->lock); | |
1633 | amd8111e_disable_interrupt(lp); | |
1634 | spin_unlock_irq(&lp->lock); | |
1635 | ||
1636 | netif_device_detach(dev); | |
6aa20a22 | 1637 | |
1da177e4 LT |
1638 | /* stop chip */ |
1639 | spin_lock_irq(&lp->lock); | |
6aa20a22 | 1640 | if(lp->options & OPTION_DYN_IPG_ENABLE) |
1da177e4 LT |
1641 | del_timer_sync(&lp->ipg_data.ipg_timer); |
1642 | amd8111e_stop_chip(lp); | |
1643 | spin_unlock_irq(&lp->lock); | |
1644 | ||
1645 | if(lp->options & OPTION_WOL_ENABLE){ | |
1646 | /* enable wol */ | |
1647 | if(lp->options & OPTION_WAKE_MAGIC_ENABLE) | |
6aa20a22 | 1648 | amd8111e_enable_magicpkt(lp); |
1da177e4 | 1649 | if(lp->options & OPTION_WAKE_PHY_ENABLE) |
6aa20a22 JG |
1650 | amd8111e_enable_link_change(lp); |
1651 | ||
1da177e4 LT |
1652 | pci_enable_wake(pci_dev, PCI_D3hot, 1); |
1653 | pci_enable_wake(pci_dev, PCI_D3cold, 1); | |
1654 | ||
1655 | } | |
6aa20a22 | 1656 | else{ |
1da177e4 LT |
1657 | pci_enable_wake(pci_dev, PCI_D3hot, 0); |
1658 | pci_enable_wake(pci_dev, PCI_D3cold, 0); | |
1659 | } | |
6aa20a22 | 1660 | |
1da177e4 LT |
1661 | pci_save_state(pci_dev); |
1662 | pci_set_power_state(pci_dev, PCI_D3hot); | |
1663 | ||
1664 | return 0; | |
1665 | } | |
1666 | static int amd8111e_resume(struct pci_dev *pci_dev) | |
1667 | { | |
1668 | struct net_device *dev = pci_get_drvdata(pci_dev); | |
1669 | struct amd8111e_priv *lp = netdev_priv(dev); | |
6aa20a22 | 1670 | |
1da177e4 LT |
1671 | if (!netif_running(dev)) |
1672 | return 0; | |
1673 | ||
1674 | pci_set_power_state(pci_dev, PCI_D0); | |
1675 | pci_restore_state(pci_dev); | |
1676 | ||
1677 | pci_enable_wake(pci_dev, PCI_D3hot, 0); | |
1678 | pci_enable_wake(pci_dev, PCI_D3cold, 0); /* D3 cold */ | |
1679 | ||
1680 | netif_device_attach(dev); | |
1681 | ||
1682 | spin_lock_irq(&lp->lock); | |
1683 | amd8111e_restart(dev); | |
1684 | /* Restart ipg timer */ | |
6aa20a22 JG |
1685 | if(lp->options & OPTION_DYN_IPG_ENABLE) |
1686 | mod_timer(&lp->ipg_data.ipg_timer, | |
1da177e4 LT |
1687 | jiffies + IPG_CONVERGE_JIFFIES); |
1688 | spin_unlock_irq(&lp->lock); | |
1689 | ||
1690 | return 0; | |
1691 | } | |
1692 | ||
46c73ecc | 1693 | static void amd8111e_config_ipg(struct net_device *dev) |
1da177e4 LT |
1694 | { |
1695 | struct amd8111e_priv *lp = netdev_priv(dev); | |
46c73ecc | 1696 | struct ipg_info *ipg_data = &lp->ipg_data; |
1da177e4 LT |
1697 | void __iomem *mmio = lp->mmio; |
1698 | unsigned int prev_col_cnt = ipg_data->col_cnt; | |
1699 | unsigned int total_col_cnt; | |
1700 | unsigned int tmp_ipg; | |
6aa20a22 | 1701 | |
1da177e4 LT |
1702 | if(lp->link_config.duplex == DUPLEX_FULL){ |
1703 | ipg_data->ipg = DEFAULT_IPG; | |
1704 | return; | |
1705 | } | |
1706 | ||
1707 | if(ipg_data->ipg_state == SSTATE){ | |
6aa20a22 | 1708 | |
1da177e4 | 1709 | if(ipg_data->timer_tick == IPG_STABLE_TIME){ |
6aa20a22 | 1710 | |
1da177e4 LT |
1711 | ipg_data->timer_tick = 0; |
1712 | ipg_data->ipg = MIN_IPG - IPG_STEP; | |
1713 | ipg_data->current_ipg = MIN_IPG; | |
1714 | ipg_data->diff_col_cnt = 0xFFFFFFFF; | |
1715 | ipg_data->ipg_state = CSTATE; | |
1716 | } | |
1717 | else | |
1718 | ipg_data->timer_tick++; | |
1719 | } | |
1720 | ||
1721 | if(ipg_data->ipg_state == CSTATE){ | |
6aa20a22 | 1722 | |
1da177e4 LT |
1723 | /* Get the current collision count */ |
1724 | ||
6aa20a22 | 1725 | total_col_cnt = ipg_data->col_cnt = |
1da177e4 LT |
1726 | amd8111e_read_mib(mmio, xmt_collisions); |
1727 | ||
6aa20a22 | 1728 | if ((total_col_cnt - prev_col_cnt) < |
1da177e4 | 1729 | (ipg_data->diff_col_cnt)){ |
6aa20a22 | 1730 | |
1da177e4 LT |
1731 | ipg_data->diff_col_cnt = |
1732 | total_col_cnt - prev_col_cnt ; | |
1733 | ||
1734 | ipg_data->ipg = ipg_data->current_ipg; | |
1735 | } | |
1736 | ||
1737 | ipg_data->current_ipg += IPG_STEP; | |
1738 | ||
1739 | if (ipg_data->current_ipg <= MAX_IPG) | |
1740 | tmp_ipg = ipg_data->current_ipg; | |
1741 | else{ | |
1742 | tmp_ipg = ipg_data->ipg; | |
1743 | ipg_data->ipg_state = SSTATE; | |
1744 | } | |
6aa20a22 JG |
1745 | writew((u32)tmp_ipg, mmio + IPG); |
1746 | writew((u32)(tmp_ipg - IFS1_DELTA), mmio + IFS1); | |
1da177e4 LT |
1747 | } |
1748 | mod_timer(&lp->ipg_data.ipg_timer, jiffies + IPG_CONVERGE_JIFFIES); | |
1749 | return; | |
1750 | ||
1751 | } | |
1752 | ||
0cb0568d | 1753 | static void amd8111e_probe_ext_phy(struct net_device *dev) |
1da177e4 LT |
1754 | { |
1755 | struct amd8111e_priv *lp = netdev_priv(dev); | |
1756 | int i; | |
1757 | ||
1758 | for (i = 0x1e; i >= 0; i--) { | |
1759 | u32 id1, id2; | |
1760 | ||
1761 | if (amd8111e_read_phy(lp, i, MII_PHYSID1, &id1)) | |
1762 | continue; | |
1763 | if (amd8111e_read_phy(lp, i, MII_PHYSID2, &id2)) | |
1764 | continue; | |
1765 | lp->ext_phy_id = (id1 << 16) | id2; | |
1766 | lp->ext_phy_addr = i; | |
1767 | return; | |
1768 | } | |
1769 | lp->ext_phy_id = 0; | |
1770 | lp->ext_phy_addr = 1; | |
1771 | } | |
1772 | ||
887e53d2 SH |
1773 | static const struct net_device_ops amd8111e_netdev_ops = { |
1774 | .ndo_open = amd8111e_open, | |
1775 | .ndo_stop = amd8111e_close, | |
1776 | .ndo_start_xmit = amd8111e_start_xmit, | |
1777 | .ndo_tx_timeout = amd8111e_tx_timeout, | |
1778 | .ndo_get_stats = amd8111e_get_stats, | |
afc4b13d | 1779 | .ndo_set_rx_mode = amd8111e_set_multicast_list, |
887e53d2 SH |
1780 | .ndo_validate_addr = eth_validate_addr, |
1781 | .ndo_set_mac_address = amd8111e_set_mac_address, | |
1782 | .ndo_do_ioctl = amd8111e_ioctl, | |
1783 | .ndo_change_mtu = amd8111e_change_mtu, | |
887e53d2 SH |
1784 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1785 | .ndo_poll_controller = amd8111e_poll, | |
1786 | #endif | |
1787 | }; | |
1788 | ||
0cb0568d | 1789 | static int amd8111e_probe_one(struct pci_dev *pdev, |
1da177e4 LT |
1790 | const struct pci_device_id *ent) |
1791 | { | |
f9c7da5e | 1792 | int err, i; |
1da177e4 | 1793 | unsigned long reg_addr,reg_len; |
46c73ecc VB |
1794 | struct amd8111e_priv *lp; |
1795 | struct net_device *dev; | |
1da177e4 LT |
1796 | |
1797 | err = pci_enable_device(pdev); | |
1798 | if(err){ | |
f7afbaa5 | 1799 | dev_err(&pdev->dev, "Cannot enable new PCI device\n"); |
1da177e4 LT |
1800 | return err; |
1801 | } | |
1802 | ||
1803 | if(!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)){ | |
f7afbaa5 | 1804 | dev_err(&pdev->dev, "Cannot find PCI base address\n"); |
1da177e4 LT |
1805 | err = -ENODEV; |
1806 | goto err_disable_pdev; | |
1807 | } | |
1808 | ||
1809 | err = pci_request_regions(pdev, MODULE_NAME); | |
1810 | if(err){ | |
f7afbaa5 | 1811 | dev_err(&pdev->dev, "Cannot obtain PCI resources\n"); |
1da177e4 LT |
1812 | goto err_disable_pdev; |
1813 | } | |
1814 | ||
1815 | pci_set_master(pdev); | |
1816 | ||
1817 | /* Find power-management capability. */ | |
f9c7da5e | 1818 | if (!pdev->pm_cap) { |
f7afbaa5 | 1819 | dev_err(&pdev->dev, "No Power Management capability\n"); |
86e506e3 | 1820 | err = -ENODEV; |
1da177e4 LT |
1821 | goto err_free_reg; |
1822 | } | |
1823 | ||
1824 | /* Initialize DMA */ | |
284901a9 | 1825 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) < 0) { |
f7afbaa5 | 1826 | dev_err(&pdev->dev, "DMA not supported\n"); |
86e506e3 | 1827 | err = -ENODEV; |
cac8c81a TK |
1828 | goto err_free_reg; |
1829 | } | |
6aa20a22 | 1830 | |
1da177e4 LT |
1831 | reg_addr = pci_resource_start(pdev, 0); |
1832 | reg_len = pci_resource_len(pdev, 0); | |
1833 | ||
1834 | dev = alloc_etherdev(sizeof(struct amd8111e_priv)); | |
1835 | if (!dev) { | |
1da177e4 LT |
1836 | err = -ENOMEM; |
1837 | goto err_free_reg; | |
1838 | } | |
1839 | ||
1da177e4 LT |
1840 | SET_NETDEV_DEV(dev, &pdev->dev); |
1841 | ||
1842 | #if AMD8111E_VLAN_TAG_USED | |
f646968f | 1843 | dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX ; |
6aa20a22 JG |
1844 | #endif |
1845 | ||
1da177e4 LT |
1846 | lp = netdev_priv(dev); |
1847 | lp->pci_dev = pdev; | |
1848 | lp->amd8111e_net_dev = dev; | |
f9c7da5e | 1849 | lp->pm_cap = pdev->pm_cap; |
1da177e4 LT |
1850 | |
1851 | spin_lock_init(&lp->lock); | |
1852 | ||
711fec5d | 1853 | lp->mmio = devm_ioremap(&pdev->dev, reg_addr, reg_len); |
ee41a82f | 1854 | if (!lp->mmio) { |
f7afbaa5 | 1855 | dev_err(&pdev->dev, "Cannot map device registers\n"); |
1da177e4 LT |
1856 | err = -ENOMEM; |
1857 | goto err_free_dev; | |
1858 | } | |
6aa20a22 | 1859 | |
1da177e4 | 1860 | /* Initializing MAC address */ |
c857ff6e | 1861 | for (i = 0; i < ETH_ALEN; i++) |
0795af57 | 1862 | dev->dev_addr[i] = readb(lp->mmio + PADR + i); |
6aa20a22 | 1863 | |
1da177e4 LT |
1864 | /* Setting user defined parametrs */ |
1865 | lp->ext_phy_option = speed_duplex[card_idx]; | |
1866 | if(coalesce[card_idx]) | |
6aa20a22 | 1867 | lp->options |= OPTION_INTR_COAL_ENABLE; |
1da177e4 | 1868 | if(dynamic_ipg[card_idx++]) |
6aa20a22 | 1869 | lp->options |= OPTION_DYN_IPG_ENABLE; |
1da177e4 | 1870 | |
887e53d2 | 1871 | |
1da177e4 | 1872 | /* Initialize driver entry points */ |
887e53d2 | 1873 | dev->netdev_ops = &amd8111e_netdev_ops; |
7ad24ea4 | 1874 | dev->ethtool_ops = &ops; |
1da177e4 | 1875 | dev->irq =pdev->irq; |
6aa20a22 | 1876 | dev->watchdog_timeo = AMD8111E_TX_TIMEOUT; |
bea3348e | 1877 | netif_napi_add(dev, &lp->napi, amd8111e_rx_poll, 32); |
1da177e4 LT |
1878 | |
1879 | #if AMD8111E_VLAN_TAG_USED | |
f646968f | 1880 | dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; |
6aa20a22 | 1881 | #endif |
1da177e4 LT |
1882 | /* Probe the external PHY */ |
1883 | amd8111e_probe_ext_phy(dev); | |
1884 | ||
1885 | /* setting mii default values */ | |
1886 | lp->mii_if.dev = dev; | |
1887 | lp->mii_if.mdio_read = amd8111e_mdio_read; | |
1888 | lp->mii_if.mdio_write = amd8111e_mdio_write; | |
1889 | lp->mii_if.phy_id = lp->ext_phy_addr; | |
1890 | ||
1891 | /* Set receive buffer length and set jumbo option*/ | |
1892 | amd8111e_set_rx_buff_len(dev); | |
1893 | ||
1894 | ||
1895 | err = register_netdev(dev); | |
1896 | if (err) { | |
f7afbaa5 | 1897 | dev_err(&pdev->dev, "Cannot register net device\n"); |
711fec5d | 1898 | goto err_free_dev; |
1da177e4 LT |
1899 | } |
1900 | ||
1901 | pci_set_drvdata(pdev, dev); | |
6aa20a22 | 1902 | |
1da177e4 | 1903 | /* Initialize software ipg timer */ |
6aa20a22 | 1904 | if(lp->options & OPTION_DYN_IPG_ENABLE){ |
1da177e4 LT |
1905 | init_timer(&lp->ipg_data.ipg_timer); |
1906 | lp->ipg_data.ipg_timer.data = (unsigned long) dev; | |
1907 | lp->ipg_data.ipg_timer.function = (void *)&amd8111e_config_ipg; | |
6aa20a22 | 1908 | lp->ipg_data.ipg_timer.expires = jiffies + |
1da177e4 LT |
1909 | IPG_CONVERGE_JIFFIES; |
1910 | lp->ipg_data.ipg = DEFAULT_IPG; | |
1911 | lp->ipg_data.ipg_state = CSTATE; | |
6403eab1 | 1912 | } |
1da177e4 LT |
1913 | |
1914 | /* display driver and device information */ | |
1da177e4 | 1915 | chip_version = (readl(lp->mmio + CHIPID) & 0xf0000000)>>28; |
f7afbaa5 VB |
1916 | dev_info(&pdev->dev, "AMD-8111e Driver Version: %s\n", MODULE_VERS); |
1917 | dev_info(&pdev->dev, "[ Rev %x ] PCI 10/100BaseT Ethernet %pM\n", | |
1918 | chip_version, dev->dev_addr); | |
1da177e4 | 1919 | if (lp->ext_phy_id) |
f7afbaa5 VB |
1920 | dev_info(&pdev->dev, "Found MII PHY ID 0x%08x at address 0x%02x\n", |
1921 | lp->ext_phy_id, lp->ext_phy_addr); | |
1da177e4 | 1922 | else |
f7afbaa5 VB |
1923 | dev_info(&pdev->dev, "Couldn't detect MII PHY, assuming address 0x01\n"); |
1924 | ||
1da177e4 | 1925 | return 0; |
1da177e4 LT |
1926 | |
1927 | err_free_dev: | |
1928 | free_netdev(dev); | |
1929 | ||
1930 | err_free_reg: | |
1931 | pci_release_regions(pdev); | |
1932 | ||
1933 | err_disable_pdev: | |
1934 | pci_disable_device(pdev); | |
1da177e4 LT |
1935 | return err; |
1936 | ||
1937 | } | |
1938 | ||
43519e60 VB |
1939 | static void amd8111e_remove_one(struct pci_dev *pdev) |
1940 | { | |
1941 | struct net_device *dev = pci_get_drvdata(pdev); | |
1942 | ||
1943 | if (dev) { | |
1944 | unregister_netdev(dev); | |
43519e60 VB |
1945 | free_netdev(dev); |
1946 | pci_release_regions(pdev); | |
1947 | pci_disable_device(pdev); | |
1948 | } | |
1949 | } | |
1950 | ||
ba69a3d7 VB |
1951 | static const struct pci_device_id amd8111e_pci_tbl[] = { |
1952 | { | |
1953 | .vendor = PCI_VENDOR_ID_AMD, | |
1954 | .device = PCI_DEVICE_ID_AMD8111E_7462, | |
1955 | }, | |
1956 | { | |
1957 | .vendor = 0, | |
1958 | } | |
1959 | }; | |
1960 | MODULE_DEVICE_TABLE(pci, amd8111e_pci_tbl); | |
1961 | ||
1da177e4 LT |
1962 | static struct pci_driver amd8111e_driver = { |
1963 | .name = MODULE_NAME, | |
1964 | .id_table = amd8111e_pci_tbl, | |
1965 | .probe = amd8111e_probe_one, | |
0cb0568d | 1966 | .remove = amd8111e_remove_one, |
1da177e4 LT |
1967 | .suspend = amd8111e_suspend, |
1968 | .resume = amd8111e_resume | |
1969 | }; | |
1970 | ||
a46e6ccd | 1971 | module_pci_driver(amd8111e_driver); |