blob: 19831bd64016f850416afe1387dc71b4e7fb18ea [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002/* Advanced Micro Devices Inc. AMD8111E Linux Network Driver
3 * Copyright (C) 2004 Advanced Micro Devices
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 * 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 *
Jeff Garzik6aa20a22006-09-13 13:24:59 -040015 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070016 * 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
27 * along with this program; if not, write to the Free Software
Jeff Garzik6aa20a22006-09-13 13:24:59 -040028 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 * USA
Jeff Garzik6aa20a22006-09-13 13:24:59 -040030
Linus Torvalds1da177e2005-04-16 15:20:36 -070031Module Name:
32
33 amd8111e.c
34
35Abstract:
Jeff Garzik6aa20a22006-09-13 13:24:59 -040036
37 AMD8111 based 10/100 Ethernet Controller Driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
39Environment:
40
41 Kernel Mode
42
43Revision History:
44 3.0.0
45 Initial Revision.
46 3.0.1
47 1. Dynamic interrupt coalescing.
48 2. Removed prev_stats.
49 3. MII support.
50 4. Dynamic IPG support
51 3.0.2 05/29/2003
52 1. Bug fix: Fixed failure to send jumbo packets larger than 4k.
53 2. Bug fix: Fixed VLAN support failure.
54 3. Bug fix: Fixed receive interrupt coalescing bug.
55 4. Dynamic IPG support is disabled by default.
56 3.0.3 06/05/2003
57 1. Bug fix: Fixed failure to close the interface if SMP is enabled.
58 3.0.4 12/09/2003
59 1. Added set_mac_address routine for bonding driver support.
60 2. Tested the driver for bonding support
Jeff Garzik6aa20a22006-09-13 13:24:59 -040061 3. Bug fix: Fixed mismach in actual receive buffer lenth and lenth
Linus Torvalds1da177e2005-04-16 15:20:36 -070062 indicated to the h/w.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040063 4. Modified amd8111e_rx() routine to receive all the received packets
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 in the first interrupt.
65 5. Bug fix: Corrected rx_errors reported in get_stats() function.
66 3.0.5 03/22/2004
Jeff Garzik6aa20a22006-09-13 13:24:59 -040067 1. Added NAPI support
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
69*/
70
71
Linus Torvalds1da177e2005-04-16 15:20:36 -070072#include <linux/module.h>
73#include <linux/kernel.h>
74#include <linux/types.h>
75#include <linux/compiler.h>
76#include <linux/slab.h>
77#include <linux/delay.h>
78#include <linux/init.h>
79#include <linux/ioport.h>
80#include <linux/pci.h>
81#include <linux/netdevice.h>
82#include <linux/etherdevice.h>
83#include <linux/skbuff.h>
84#include <linux/ethtool.h>
85#include <linux/mii.h>
86#include <linux/if_vlan.h>
Jeff Garzik6aa20a22006-09-13 13:24:59 -040087#include <linux/ctype.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070088#include <linux/crc32.h>
Tobias Klausercac8c812005-05-16 19:15:11 +020089#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070090
91#include <asm/system.h>
92#include <asm/io.h>
93#include <asm/byteorder.h>
94#include <asm/uaccess.h>
95
96#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
97#define AMD8111E_VLAN_TAG_USED 1
98#else
99#define AMD8111E_VLAN_TAG_USED 0
100#endif
101
102#include "amd8111e.h"
103#define MODULE_NAME "amd8111e"
Francois Romieu6ba33ac2008-07-06 20:55:12 -0700104#define MODULE_VERS "3.0.7"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105MODULE_AUTHOR("Advanced Micro Devices, Inc.");
Francois Romieu6ba33ac2008-07-06 20:55:12 -0700106MODULE_DESCRIPTION ("AMD8111 based 10/100 Ethernet Controller. Driver Version "MODULE_VERS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107MODULE_LICENSE("GPL");
108MODULE_DEVICE_TABLE(pci, amd8111e_pci_tbl);
109module_param_array(speed_duplex, int, NULL, 0);
110MODULE_PARM_DESC(speed_duplex, "Set device speed and duplex modes, 0: Auto Negotitate, 1: 10Mbps Half Duplex, 2: 10Mbps Full Duplex, 3: 100Mbps Half Duplex, 4: 100Mbps Full Duplex");
111module_param_array(coalesce, bool, NULL, 0);
112MODULE_PARM_DESC(coalesce, "Enable or Disable interrupt coalescing, 1: Enable, 0: Disable");
113module_param_array(dynamic_ipg, bool, NULL, 0);
114MODULE_PARM_DESC(dynamic_ipg, "Enable or Disable dynamic IPG, 1: Enable, 0: Disable");
115
116static struct pci_device_id amd8111e_pci_tbl[] = {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400117
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD8111E_7462,
119 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
120 { 0, }
121
122};
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400123/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124This function will read the PHY registers.
125*/
126static int amd8111e_read_phy(struct amd8111e_priv* lp, int phy_id, int reg, u32* val)
127{
128 void __iomem *mmio = lp->mmio;
129 unsigned int reg_val;
130 unsigned int repeat= REPEAT_CNT;
131
132 reg_val = readl(mmio + PHY_ACCESS);
133 while (reg_val & PHY_CMD_ACTIVE)
134 reg_val = readl( mmio + PHY_ACCESS );
135
136 writel( PHY_RD_CMD | ((phy_id & 0x1f) << 21) |
137 ((reg & 0x1f) << 16), mmio +PHY_ACCESS);
138 do{
139 reg_val = readl(mmio + PHY_ACCESS);
140 udelay(30); /* It takes 30 us to read/write data */
141 } while (--repeat && (reg_val & PHY_CMD_ACTIVE));
142 if(reg_val & PHY_RD_ERR)
143 goto err_phy_read;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400144
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145 *val = reg_val & 0xffff;
146 return 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400147err_phy_read:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148 *val = 0;
149 return -EINVAL;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400150
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151}
152
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400153/*
154This function will write into PHY registers.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155*/
156static int amd8111e_write_phy(struct amd8111e_priv* lp,int phy_id, int reg, u32 val)
157{
Yoann Padioleau632155e2007-06-01 00:46:35 -0700158 unsigned int repeat = REPEAT_CNT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 void __iomem *mmio = lp->mmio;
160 unsigned int reg_val;
161
162 reg_val = readl(mmio + PHY_ACCESS);
163 while (reg_val & PHY_CMD_ACTIVE)
164 reg_val = readl( mmio + PHY_ACCESS );
165
166 writel( PHY_WR_CMD | ((phy_id & 0x1f) << 21) |
167 ((reg & 0x1f) << 16)|val, mmio + PHY_ACCESS);
168
169 do{
170 reg_val = readl(mmio + PHY_ACCESS);
171 udelay(30); /* It takes 30 us to read/write the data */
172 } while (--repeat && (reg_val & PHY_CMD_ACTIVE));
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400173
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 if(reg_val & PHY_RD_ERR)
175 goto err_phy_write;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177 return 0;
178
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400179err_phy_write:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180 return -EINVAL;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400181
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182}
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400183/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184This is the mii register read function provided to the mii interface.
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400185*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186static int amd8111e_mdio_read(struct net_device * dev, int phy_id, int reg_num)
187{
188 struct amd8111e_priv* lp = netdev_priv(dev);
189 unsigned int reg_val;
190
191 amd8111e_read_phy(lp,phy_id,reg_num,&reg_val);
192 return reg_val;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194}
195
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400196/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197This is the mii register write function provided to the mii interface.
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400198*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199static void amd8111e_mdio_write(struct net_device * dev, int phy_id, int reg_num, int val)
200{
201 struct amd8111e_priv* lp = netdev_priv(dev);
202
203 amd8111e_write_phy(lp, phy_id, reg_num, val);
204}
205
206/*
207This function will set PHY speed. During initialization sets the original speed to 100 full.
208*/
209static void amd8111e_set_ext_phy(struct net_device *dev)
210{
211 struct amd8111e_priv *lp = netdev_priv(dev);
212 u32 bmcr,advert,tmp;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 /* Determine mii register values to set the speed */
215 advert = amd8111e_mdio_read(dev, lp->ext_phy_addr, MII_ADVERTISE);
216 tmp = advert & ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
217 switch (lp->ext_phy_option){
218
219 default:
220 case SPEED_AUTONEG: /* advertise all values */
221 tmp |= ( ADVERTISE_10HALF|ADVERTISE_10FULL|
222 ADVERTISE_100HALF|ADVERTISE_100FULL) ;
223 break;
224 case SPEED10_HALF:
225 tmp |= ADVERTISE_10HALF;
226 break;
227 case SPEED10_FULL:
228 tmp |= ADVERTISE_10FULL;
229 break;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400230 case SPEED100_HALF:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231 tmp |= ADVERTISE_100HALF;
232 break;
233 case SPEED100_FULL:
234 tmp |= ADVERTISE_100FULL;
235 break;
236 }
237
238 if(advert != tmp)
239 amd8111e_mdio_write(dev, lp->ext_phy_addr, MII_ADVERTISE, tmp);
240 /* Restart auto negotiation */
241 bmcr = amd8111e_mdio_read(dev, lp->ext_phy_addr, MII_BMCR);
242 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
243 amd8111e_mdio_write(dev, lp->ext_phy_addr, MII_BMCR, bmcr);
244
245}
246
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400247/*
248This function will unmap skb->data space and will free
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249all transmit and receive skbuffs.
250*/
251static int amd8111e_free_skbs(struct net_device *dev)
252{
253 struct amd8111e_priv *lp = netdev_priv(dev);
254 struct sk_buff* rx_skbuff;
255 int i;
256
257 /* Freeing transmit skbs */
258 for(i = 0; i < NUM_TX_BUFFERS; i++){
259 if(lp->tx_skbuff[i]){
260 pci_unmap_single(lp->pci_dev,lp->tx_dma_addr[i], lp->tx_skbuff[i]->len,PCI_DMA_TODEVICE);
261 dev_kfree_skb (lp->tx_skbuff[i]);
262 lp->tx_skbuff[i] = NULL;
263 lp->tx_dma_addr[i] = 0;
264 }
265 }
266 /* Freeing previously allocated receive buffers */
267 for (i = 0; i < NUM_RX_BUFFERS; i++){
268 rx_skbuff = lp->rx_skbuff[i];
269 if(rx_skbuff != NULL){
270 pci_unmap_single(lp->pci_dev,lp->rx_dma_addr[i],
271 lp->rx_buff_len - 2,PCI_DMA_FROMDEVICE);
272 dev_kfree_skb(lp->rx_skbuff[i]);
273 lp->rx_skbuff[i] = NULL;
274 lp->rx_dma_addr[i] = 0;
275 }
276 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400277
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278 return 0;
279}
280
281/*
282This will set the receive buffer length corresponding to the mtu size of networkinterface.
283*/
284static inline void amd8111e_set_rx_buff_len(struct net_device* dev)
285{
286 struct amd8111e_priv* lp = netdev_priv(dev);
287 unsigned int mtu = dev->mtu;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400288
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289 if (mtu > ETH_DATA_LEN){
290 /* MTU + ethernet header + FCS
291 + optional VLAN tag + skb reserve space 2 */
292
293 lp->rx_buff_len = mtu + ETH_HLEN + 10;
294 lp->options |= OPTION_JUMBO_ENABLE;
295 } else{
296 lp->rx_buff_len = PKT_BUFF_SZ;
297 lp->options &= ~OPTION_JUMBO_ENABLE;
298 }
299}
300
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400301/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302This function will free all the previously allocated buffers, determine new receive buffer length and will allocate new receive buffers. This function also allocates and initializes both the transmitter and receive hardware descriptors.
303 */
304static int amd8111e_init_ring(struct net_device *dev)
305{
306 struct amd8111e_priv *lp = netdev_priv(dev);
307 int i;
308
309 lp->rx_idx = lp->tx_idx = 0;
310 lp->tx_complete_idx = 0;
311 lp->tx_ring_idx = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400312
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313
314 if(lp->opened)
315 /* Free previously allocated transmit and receive skbs */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400316 amd8111e_free_skbs(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317
318 else{
319 /* allocate the tx and rx descriptors */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400320 if((lp->tx_ring = pci_alloc_consistent(lp->pci_dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321 sizeof(struct amd8111e_tx_dr)*NUM_TX_RING_DR,
322 &lp->tx_ring_dma_addr)) == NULL)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400323
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 goto err_no_mem;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400325
326 if((lp->rx_ring = pci_alloc_consistent(lp->pci_dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 sizeof(struct amd8111e_rx_dr)*NUM_RX_RING_DR,
328 &lp->rx_ring_dma_addr)) == NULL)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400329
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 goto err_free_tx_ring;
331
332 }
333 /* Set new receive buff size */
334 amd8111e_set_rx_buff_len(dev);
335
336 /* Allocating receive skbs */
337 for (i = 0; i < NUM_RX_BUFFERS; i++) {
338
339 if (!(lp->rx_skbuff[i] = dev_alloc_skb(lp->rx_buff_len))) {
340 /* Release previos allocated skbs */
341 for(--i; i >= 0 ;i--)
342 dev_kfree_skb(lp->rx_skbuff[i]);
343 goto err_free_rx_ring;
344 }
345 skb_reserve(lp->rx_skbuff[i],2);
346 }
347 /* Initilaizing receive descriptors */
348 for (i = 0; i < NUM_RX_BUFFERS; i++) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400349 lp->rx_dma_addr[i] = pci_map_single(lp->pci_dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 lp->rx_skbuff[i]->data,lp->rx_buff_len-2, PCI_DMA_FROMDEVICE);
351
352 lp->rx_ring[i].buff_phy_addr = cpu_to_le32(lp->rx_dma_addr[i]);
353 lp->rx_ring[i].buff_count = cpu_to_le16(lp->rx_buff_len-2);
354 wmb();
355 lp->rx_ring[i].rx_flags = cpu_to_le16(OWN_BIT);
356 }
357
358 /* Initializing transmit descriptors */
359 for (i = 0; i < NUM_TX_RING_DR; i++) {
360 lp->tx_ring[i].buff_phy_addr = 0;
361 lp->tx_ring[i].tx_flags = 0;
362 lp->tx_ring[i].buff_count = 0;
363 }
364
365 return 0;
366
367err_free_rx_ring:
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400368
369 pci_free_consistent(lp->pci_dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370 sizeof(struct amd8111e_rx_dr)*NUM_RX_RING_DR,lp->rx_ring,
371 lp->rx_ring_dma_addr);
372
373err_free_tx_ring:
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400374
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375 pci_free_consistent(lp->pci_dev,
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400376 sizeof(struct amd8111e_tx_dr)*NUM_TX_RING_DR,lp->tx_ring,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377 lp->tx_ring_dma_addr);
378
379err_no_mem:
380 return -ENOMEM;
381}
382/* This function will set the interrupt coalescing according to the input arguments */
383static int amd8111e_set_coalesce(struct net_device * dev, enum coal_mode cmod)
384{
385 unsigned int timeout;
386 unsigned int event_count;
387
388 struct amd8111e_priv *lp = netdev_priv(dev);
389 void __iomem *mmio = lp->mmio;
390 struct amd8111e_coalesce_conf * coal_conf = &lp->coal_conf;
391
392
393 switch(cmod)
394 {
395 case RX_INTR_COAL :
396 timeout = coal_conf->rx_timeout;
397 event_count = coal_conf->rx_event_count;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400398 if( timeout > MAX_TIMEOUT ||
399 event_count > MAX_EVENT_COUNT )
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400 return -EINVAL;
401
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400402 timeout = timeout * DELAY_TIMER_CONV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 writel(VAL0|STINTEN, mmio+INTEN0);
404 writel((u32)DLY_INT_A_R0|( event_count<< 16 )|timeout,
405 mmio+DLY_INT_A);
406 break;
407
408 case TX_INTR_COAL :
409 timeout = coal_conf->tx_timeout;
410 event_count = coal_conf->tx_event_count;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400411 if( timeout > MAX_TIMEOUT ||
412 event_count > MAX_EVENT_COUNT )
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 return -EINVAL;
414
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400415
416 timeout = timeout * DELAY_TIMER_CONV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 writel(VAL0|STINTEN,mmio+INTEN0);
418 writel((u32)DLY_INT_B_T0|( event_count<< 16 )|timeout,
419 mmio+DLY_INT_B);
420 break;
421
422 case DISABLE_COAL:
423 writel(0,mmio+STVAL);
424 writel(STINTEN, mmio+INTEN0);
425 writel(0, mmio +DLY_INT_B);
426 writel(0, mmio+DLY_INT_A);
427 break;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400428 case ENABLE_COAL:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429 /* Start the timer */
430 writel((u32)SOFT_TIMER_FREQ, mmio+STVAL); /* 0.5 sec */
431 writel(VAL0|STINTEN, mmio+INTEN0);
432 break;
433 default:
434 break;
435
436 }
437 return 0;
438
439}
440
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400441/*
442This function initializes the device registers and starts the device.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443*/
444static int amd8111e_restart(struct net_device *dev)
445{
446 struct amd8111e_priv *lp = netdev_priv(dev);
447 void __iomem *mmio = lp->mmio;
448 int i,reg_val;
449
450 /* stop the chip */
451 writel(RUN, mmio + CMD0);
452
453 if(amd8111e_init_ring(dev))
454 return -ENOMEM;
455
456 /* enable the port manager and set auto negotiation always */
457 writel((u32) VAL1|EN_PMGR, mmio + CMD3 );
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400458 writel((u32)XPHYANE|XPHYRST , mmio + CTRL2);
459
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 amd8111e_set_ext_phy(dev);
461
462 /* set control registers */
463 reg_val = readl(mmio + CTRL1);
464 reg_val &= ~XMTSP_MASK;
465 writel( reg_val| XMTSP_128 | CACHE_ALIGN, mmio + CTRL1 );
466
467 /* enable interrupt */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400468 writel( APINT5EN | APINT4EN | APINT3EN | APINT2EN | APINT1EN |
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469 APINT0EN | MIIPDTINTEN | MCCIINTEN | MCCINTEN | MREINTEN |
470 SPNDINTEN | MPINTEN | SINTEN | STINTEN, mmio + INTEN0);
471
472 writel(VAL3 | LCINTEN | VAL1 | TINTEN0 | VAL0 | RINTEN0, mmio + INTEN0);
473
474 /* initialize tx and rx ring base addresses */
475 writel((u32)lp->tx_ring_dma_addr,mmio + XMT_RING_BASE_ADDR0);
476 writel((u32)lp->rx_ring_dma_addr,mmio+ RCV_RING_BASE_ADDR0);
477
478 writew((u32)NUM_TX_RING_DR, mmio + XMT_RING_LEN0);
479 writew((u16)NUM_RX_RING_DR, mmio + RCV_RING_LEN0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400480
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481 /* set default IPG to 96 */
482 writew((u32)DEFAULT_IPG,mmio+IPG);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400483 writew((u32)(DEFAULT_IPG-IFS1_DELTA), mmio + IFS1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484
485 if(lp->options & OPTION_JUMBO_ENABLE){
486 writel((u32)VAL2|JUMBO, mmio + CMD3);
487 /* Reset REX_UFLO */
488 writel( REX_UFLO, mmio + CMD2);
489 /* Should not set REX_UFLO for jumbo frames */
490 writel( VAL0 | APAD_XMT|REX_RTRY , mmio + CMD2);
491 }else{
492 writel( VAL0 | APAD_XMT | REX_RTRY|REX_UFLO, mmio + CMD2);
493 writel((u32)JUMBO, mmio + CMD3);
494 }
495
496#if AMD8111E_VLAN_TAG_USED
497 writel((u32) VAL2|VSIZE|VL_TAG_DEL, mmio + CMD3);
498#endif
499 writel( VAL0 | APAD_XMT | REX_RTRY, mmio + CMD2 );
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400500
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501 /* Setting the MAC address to the device */
502 for(i = 0; i < ETH_ADDR_LEN; i++)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400503 writeb( dev->dev_addr[i], mmio + PADR + i );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504
505 /* Enable interrupt coalesce */
506 if(lp->options & OPTION_INTR_COAL_ENABLE){
507 printk(KERN_INFO "%s: Interrupt Coalescing Enabled.\n",
508 dev->name);
509 amd8111e_set_coalesce(dev,ENABLE_COAL);
510 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400511
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512 /* set RUN bit to start the chip */
513 writel(VAL2 | RDMD0, mmio + CMD0);
514 writel(VAL0 | INTREN | RUN, mmio + CMD0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400515
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 /* To avoid PCI posting bug */
517 readl(mmio+CMD0);
518 return 0;
519}
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400520/*
521This function clears necessary the device registers.
522*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523static void amd8111e_init_hw_default( struct amd8111e_priv* lp)
524{
525 unsigned int reg_val;
526 unsigned int logic_filter[2] ={0,};
527 void __iomem *mmio = lp->mmio;
528
529
530 /* stop the chip */
531 writel(RUN, mmio + CMD0);
532
533 /* AUTOPOLL0 Register *//*TBD default value is 8100 in FPS */
534 writew( 0x8100 | lp->ext_phy_addr, mmio + AUTOPOLL0);
535
536 /* Clear RCV_RING_BASE_ADDR */
537 writel(0, mmio + RCV_RING_BASE_ADDR0);
538
539 /* Clear XMT_RING_BASE_ADDR */
540 writel(0, mmio + XMT_RING_BASE_ADDR0);
541 writel(0, mmio + XMT_RING_BASE_ADDR1);
542 writel(0, mmio + XMT_RING_BASE_ADDR2);
543 writel(0, mmio + XMT_RING_BASE_ADDR3);
544
545 /* Clear CMD0 */
546 writel(CMD0_CLEAR,mmio + CMD0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400547
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548 /* Clear CMD2 */
549 writel(CMD2_CLEAR, mmio +CMD2);
550
551 /* Clear CMD7 */
552 writel(CMD7_CLEAR , mmio + CMD7);
553
554 /* Clear DLY_INT_A and DLY_INT_B */
555 writel(0x0, mmio + DLY_INT_A);
556 writel(0x0, mmio + DLY_INT_B);
557
558 /* Clear FLOW_CONTROL */
559 writel(0x0, mmio + FLOW_CONTROL);
560
561 /* Clear INT0 write 1 to clear register */
562 reg_val = readl(mmio + INT0);
563 writel(reg_val, mmio + INT0);
564
565 /* Clear STVAL */
566 writel(0x0, mmio + STVAL);
567
568 /* Clear INTEN0 */
569 writel( INTEN0_CLEAR, mmio + INTEN0);
570
571 /* Clear LADRF */
572 writel(0x0 , mmio + LADRF);
573
574 /* Set SRAM_SIZE & SRAM_BOUNDARY registers */
575 writel( 0x80010,mmio + SRAM_SIZE);
576
577 /* Clear RCV_RING0_LEN */
578 writel(0x0, mmio + RCV_RING_LEN0);
579
580 /* Clear XMT_RING0/1/2/3_LEN */
581 writel(0x0, mmio + XMT_RING_LEN0);
582 writel(0x0, mmio + XMT_RING_LEN1);
583 writel(0x0, mmio + XMT_RING_LEN2);
584 writel(0x0, mmio + XMT_RING_LEN3);
585
586 /* Clear XMT_RING_LIMIT */
587 writel(0x0, mmio + XMT_RING_LIMIT);
588
589 /* Clear MIB */
590 writew(MIB_CLEAR, mmio + MIB_ADDR);
591
592 /* Clear LARF */
593 amd8111e_writeq(*(u64*)logic_filter,mmio+LADRF);
594
595 /* SRAM_SIZE register */
596 reg_val = readl(mmio + SRAM_SIZE);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400597
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598 if(lp->options & OPTION_JUMBO_ENABLE)
599 writel( VAL2|JUMBO, mmio + CMD3);
600#if AMD8111E_VLAN_TAG_USED
601 writel(VAL2|VSIZE|VL_TAG_DEL, mmio + CMD3 );
602#endif
603 /* Set default value to CTRL1 Register */
604 writel(CTRL1_DEFAULT, mmio + CTRL1);
605
606 /* To avoid PCI posting bug */
607 readl(mmio + CMD2);
608
609}
610
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400611/*
612This function disables the interrupt and clears all the pending
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613interrupts in INT0
614 */
615static void amd8111e_disable_interrupt(struct amd8111e_priv* lp)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400616{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617 u32 intr0;
618
619 /* Disable interrupt */
620 writel(INTREN, lp->mmio + CMD0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400621
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622 /* Clear INT0 */
623 intr0 = readl(lp->mmio + INT0);
624 writel(intr0, lp->mmio + INT0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400625
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626 /* To avoid PCI posting bug */
627 readl(lp->mmio + INT0);
628
629}
630
631/*
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400632This function stops the chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633*/
634static void amd8111e_stop_chip(struct amd8111e_priv* lp)
635{
636 writel(RUN, lp->mmio + CMD0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400637
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638 /* To avoid PCI posting bug */
639 readl(lp->mmio + CMD0);
640}
641
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400642/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643This function frees the transmiter and receiver descriptor rings.
644*/
645static void amd8111e_free_ring(struct amd8111e_priv* lp)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400646{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 /* Free transmit and receive descriptor rings */
648 if(lp->rx_ring){
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400649 pci_free_consistent(lp->pci_dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650 sizeof(struct amd8111e_rx_dr)*NUM_RX_RING_DR,
651 lp->rx_ring, lp->rx_ring_dma_addr);
652 lp->rx_ring = NULL;
653 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400654
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655 if(lp->tx_ring){
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400656 pci_free_consistent(lp->pci_dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657 sizeof(struct amd8111e_tx_dr)*NUM_TX_RING_DR,
658 lp->tx_ring, lp->tx_ring_dma_addr);
659
660 lp->tx_ring = NULL;
661 }
662
663}
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400664#if AMD8111E_VLAN_TAG_USED
665/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666This is the receive indication function for packets with vlan tag.
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400667*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668static int amd8111e_vlan_rx(struct amd8111e_priv *lp, struct sk_buff *skb, u16 vlan_tag)
669{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670 return vlan_hwaccel_receive_skb(skb, lp->vlgrp,vlan_tag);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671}
672#endif
673
674/*
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400675This function will free all the transmit skbs that are actually transmitted by the device. It will check the ownership of the skb before freeing the skb.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676*/
677static int amd8111e_tx(struct net_device *dev)
678{
679 struct amd8111e_priv* lp = netdev_priv(dev);
680 int tx_index = lp->tx_complete_idx & TX_RING_DR_MOD_MASK;
681 int status;
682 /* Complete all the transmit packet */
683 while (lp->tx_complete_idx != lp->tx_idx){
684 tx_index = lp->tx_complete_idx & TX_RING_DR_MOD_MASK;
685 status = le16_to_cpu(lp->tx_ring[tx_index].tx_flags);
686
687 if(status & OWN_BIT)
688 break; /* It still hasn't been Txed */
689
690 lp->tx_ring[tx_index].buff_phy_addr = 0;
691
692 /* We must free the original skb */
693 if (lp->tx_skbuff[tx_index]) {
694 pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[tx_index],
695 lp->tx_skbuff[tx_index]->len,
696 PCI_DMA_TODEVICE);
697 dev_kfree_skb_irq (lp->tx_skbuff[tx_index]);
698 lp->tx_skbuff[tx_index] = NULL;
699 lp->tx_dma_addr[tx_index] = 0;
700 }
701 lp->tx_complete_idx++;
702 /*COAL update tx coalescing parameters */
703 lp->coal_conf.tx_packets++;
Al Viro05d2fec2007-08-22 21:42:28 -0400704 lp->coal_conf.tx_bytes +=
705 le16_to_cpu(lp->tx_ring[tx_index].buff_count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706
707 if (netif_queue_stopped(dev) &&
708 lp->tx_complete_idx > lp->tx_idx - NUM_TX_BUFFERS +2){
709 /* The ring is no longer full, clear tbusy. */
710 /* lp->tx_full = 0; */
711 netif_wake_queue (dev);
712 }
713 }
714 return 0;
715}
716
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717/* This function handles the driver receive operation in polling mode */
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700718static int amd8111e_rx_poll(struct napi_struct *napi, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719{
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700720 struct amd8111e_priv *lp = container_of(napi, struct amd8111e_priv, napi);
721 struct net_device *dev = lp->amd8111e_net_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722 int rx_index = lp->rx_idx & RX_RING_DR_MOD_MASK;
723 void __iomem *mmio = lp->mmio;
724 struct sk_buff *skb,*new_skb;
725 int min_pkt_len, status;
726 unsigned int intr0;
727 int num_rx_pkt = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728 short pkt_len;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400729#if AMD8111E_VLAN_TAG_USED
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730 short vtag;
731#endif
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700732 int rx_pkt_limit = budget;
Liu Taodfa1b732005-05-12 19:40:38 -0400733 unsigned long flags;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400734
735 do{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736 /* process receive packets until we use the quota*/
737 /* If we own the next entry, it's a new packet. Send it up. */
738 while(1) {
739 status = le16_to_cpu(lp->rx_ring[rx_index].rx_flags);
740 if (status & OWN_BIT)
741 break;
742
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400743 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744 * There is a tricky error noted by John Murphy,
745 * <murf@perftech.com> to Russ Nelson: Even with
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400746 * full-sized * buffers it's possible for a
747 * jabber packet to use two buffers, with only
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748 * the last correctly noting the error.
749 */
750
751 if(status & ERR_BIT) {
752 /* reseting flags */
753 lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS;
754 goto err_next_pkt;
755 }
756 /* check for STP and ENP */
757 if(!((status & STP_BIT) && (status & ENP_BIT))){
758 /* reseting flags */
759 lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS;
760 goto err_next_pkt;
761 }
762 pkt_len = le16_to_cpu(lp->rx_ring[rx_index].msg_count) - 4;
763
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400764#if AMD8111E_VLAN_TAG_USED
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765 vtag = status & TT_MASK;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400766 /*MAC will strip vlan tag*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767 if(lp->vlgrp != NULL && vtag !=0)
768 min_pkt_len =MIN_PKT_LEN - 4;
769 else
770#endif
771 min_pkt_len =MIN_PKT_LEN;
772
773 if (pkt_len < min_pkt_len) {
774 lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS;
775 lp->drv_rx_errors++;
776 goto err_next_pkt;
777 }
778 if(--rx_pkt_limit < 0)
779 goto rx_not_empty;
780 if(!(new_skb = dev_alloc_skb(lp->rx_buff_len))){
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400781 /* if allocation fail,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782 ignore that pkt and go to next one */
783 lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS;
784 lp->drv_rx_errors++;
785 goto err_next_pkt;
786 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400787
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788 skb_reserve(new_skb, 2);
789 skb = lp->rx_skbuff[rx_index];
790 pci_unmap_single(lp->pci_dev,lp->rx_dma_addr[rx_index],
791 lp->rx_buff_len-2, PCI_DMA_FROMDEVICE);
792 skb_put(skb, pkt_len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793 lp->rx_skbuff[rx_index] = new_skb;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794 lp->rx_dma_addr[rx_index] = pci_map_single(lp->pci_dev,
795 new_skb->data,
796 lp->rx_buff_len-2,
797 PCI_DMA_FROMDEVICE);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400798
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799 skb->protocol = eth_type_trans(skb, dev);
800
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400801#if AMD8111E_VLAN_TAG_USED
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802 if(lp->vlgrp != NULL && (vtag == TT_VLAN_TAGGED)){
803 amd8111e_vlan_rx(lp, skb,
804 le16_to_cpu(lp->rx_ring[rx_index].tag_ctrl_info));
805 } else
806#endif
807 netif_receive_skb(skb);
808 /*COAL update rx coalescing parameters*/
809 lp->coal_conf.rx_packets++;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400810 lp->coal_conf.rx_bytes += pkt_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700811 num_rx_pkt++;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400812
813 err_next_pkt:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814 lp->rx_ring[rx_index].buff_phy_addr
815 = cpu_to_le32(lp->rx_dma_addr[rx_index]);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400816 lp->rx_ring[rx_index].buff_count =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700817 cpu_to_le16(lp->rx_buff_len-2);
818 wmb();
819 lp->rx_ring[rx_index].rx_flags |= cpu_to_le16(OWN_BIT);
820 rx_index = (++lp->rx_idx) & RX_RING_DR_MOD_MASK;
821 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400822 /* Check the interrupt status register for more packets in the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823 mean time. Process them since we have not used up our quota.*/
824
825 intr0 = readl(mmio + INT0);
826 /*Ack receive packets */
827 writel(intr0 & RINT0,mmio + INT0);
828
829 } while(intr0 & RINT0);
830
Chris Friesen48e5eca2008-10-28 15:50:54 -0700831 if (rx_pkt_limit > 0) {
832 /* Receive descriptor is empty now */
833 spin_lock_irqsave(&lp->lock, flags);
Ben Hutchings288379f2009-01-19 16:43:59 -0800834 __napi_complete(napi);
Chris Friesen48e5eca2008-10-28 15:50:54 -0700835 writel(VAL0|RINTEN0, mmio + INTEN0);
836 writel(VAL2 | RDMD0, mmio + CMD0);
837 spin_unlock_irqrestore(&lp->lock, flags);
838 }
Liu Taodfa1b732005-05-12 19:40:38 -0400839
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840rx_not_empty:
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700841 return num_rx_pkt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842}
843
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400844/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845This function will indicate the link status to the kernel.
846*/
847static int amd8111e_link_change(struct net_device* dev)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400848{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849 struct amd8111e_priv *lp = netdev_priv(dev);
850 int status0,speed;
851
852 /* read the link change */
853 status0 = readl(lp->mmio + STAT0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400854
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855 if(status0 & LINK_STATS){
856 if(status0 & AUTONEG_COMPLETE)
857 lp->link_config.autoneg = AUTONEG_ENABLE;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400858 else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859 lp->link_config.autoneg = AUTONEG_DISABLE;
860
861 if(status0 & FULL_DPLX)
862 lp->link_config.duplex = DUPLEX_FULL;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400863 else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864 lp->link_config.duplex = DUPLEX_HALF;
865 speed = (status0 & SPEED_MASK) >> 7;
866 if(speed == PHY_SPEED_10)
867 lp->link_config.speed = SPEED_10;
868 else if(speed == PHY_SPEED_100)
869 lp->link_config.speed = SPEED_100;
870
871 printk(KERN_INFO "%s: Link is Up. Speed is %s Mbps %s Duplex\n", dev->name,
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400872 (lp->link_config.speed == SPEED_100) ? "100": "10",
873 (lp->link_config.duplex == DUPLEX_FULL)? "Full": "Half");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874 netif_carrier_on(dev);
875 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400876 else{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877 lp->link_config.speed = SPEED_INVALID;
878 lp->link_config.duplex = DUPLEX_INVALID;
879 lp->link_config.autoneg = AUTONEG_INVALID;
880 printk(KERN_INFO "%s: Link is Down.\n",dev->name);
881 netif_carrier_off(dev);
882 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400883
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884 return 0;
885}
886/*
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400887This function reads the mib counters.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888*/
889static int amd8111e_read_mib(void __iomem *mmio, u8 MIB_COUNTER)
890{
891 unsigned int status;
892 unsigned int data;
893 unsigned int repeat = REPEAT_CNT;
894
895 writew( MIB_RD_CMD | MIB_COUNTER, mmio + MIB_ADDR);
896 do {
897 status = readw(mmio + MIB_ADDR);
898 udelay(2); /* controller takes MAX 2 us to get mib data */
899 }
900 while (--repeat && (status & MIB_CMD_ACTIVE));
901
902 data = readl(mmio + MIB_DATA);
903 return data;
904}
905
906/*
907This function reads the mib registers and returns the hardware statistics. It updates previous internal driver statistics with new values.
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400908*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909static struct net_device_stats *amd8111e_get_stats(struct net_device * dev)
910{
911 struct amd8111e_priv *lp = netdev_priv(dev);
912 void __iomem *mmio = lp->mmio;
913 unsigned long flags;
914 /* struct net_device_stats *prev_stats = &lp->prev_stats; */
915 struct net_device_stats* new_stats = &lp->stats;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400916
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917 if(!lp->opened)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400918 return &lp->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919 spin_lock_irqsave (&lp->lock, flags);
920
921 /* stats.rx_packets */
922 new_stats->rx_packets = amd8111e_read_mib(mmio, rcv_broadcast_pkts)+
923 amd8111e_read_mib(mmio, rcv_multicast_pkts)+
924 amd8111e_read_mib(mmio, rcv_unicast_pkts);
925
926 /* stats.tx_packets */
927 new_stats->tx_packets = amd8111e_read_mib(mmio, xmt_packets);
928
929 /*stats.rx_bytes */
930 new_stats->rx_bytes = amd8111e_read_mib(mmio, rcv_octets);
931
932 /* stats.tx_bytes */
933 new_stats->tx_bytes = amd8111e_read_mib(mmio, xmt_octets);
934
935 /* stats.rx_errors */
936 /* hw errors + errors driver reported */
937 new_stats->rx_errors = amd8111e_read_mib(mmio, rcv_undersize_pkts)+
938 amd8111e_read_mib(mmio, rcv_fragments)+
939 amd8111e_read_mib(mmio, rcv_jabbers)+
940 amd8111e_read_mib(mmio, rcv_alignment_errors)+
941 amd8111e_read_mib(mmio, rcv_fcs_errors)+
942 amd8111e_read_mib(mmio, rcv_miss_pkts)+
943 lp->drv_rx_errors;
944
945 /* stats.tx_errors */
946 new_stats->tx_errors = amd8111e_read_mib(mmio, xmt_underrun_pkts);
947
948 /* stats.rx_dropped*/
949 new_stats->rx_dropped = amd8111e_read_mib(mmio, rcv_miss_pkts);
950
951 /* stats.tx_dropped*/
952 new_stats->tx_dropped = amd8111e_read_mib(mmio, xmt_underrun_pkts);
953
954 /* stats.multicast*/
955 new_stats->multicast = amd8111e_read_mib(mmio, rcv_multicast_pkts);
956
957 /* stats.collisions*/
958 new_stats->collisions = amd8111e_read_mib(mmio, xmt_collisions);
959
960 /* stats.rx_length_errors*/
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400961 new_stats->rx_length_errors =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962 amd8111e_read_mib(mmio, rcv_undersize_pkts)+
963 amd8111e_read_mib(mmio, rcv_oversize_pkts);
964
965 /* stats.rx_over_errors*/
966 new_stats->rx_over_errors = amd8111e_read_mib(mmio, rcv_miss_pkts);
967
968 /* stats.rx_crc_errors*/
969 new_stats->rx_crc_errors = amd8111e_read_mib(mmio, rcv_fcs_errors);
970
971 /* stats.rx_frame_errors*/
972 new_stats->rx_frame_errors =
973 amd8111e_read_mib(mmio, rcv_alignment_errors);
974
975 /* stats.rx_fifo_errors */
976 new_stats->rx_fifo_errors = amd8111e_read_mib(mmio, rcv_miss_pkts);
977
978 /* stats.rx_missed_errors */
979 new_stats->rx_missed_errors = amd8111e_read_mib(mmio, rcv_miss_pkts);
980
981 /* stats.tx_aborted_errors*/
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400982 new_stats->tx_aborted_errors =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983 amd8111e_read_mib(mmio, xmt_excessive_collision);
984
985 /* stats.tx_carrier_errors*/
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400986 new_stats->tx_carrier_errors =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987 amd8111e_read_mib(mmio, xmt_loss_carrier);
988
989 /* stats.tx_fifo_errors*/
990 new_stats->tx_fifo_errors = amd8111e_read_mib(mmio, xmt_underrun_pkts);
991
992 /* stats.tx_window_errors*/
993 new_stats->tx_window_errors =
994 amd8111e_read_mib(mmio, xmt_late_collision);
995
996 /* Reset the mibs for collecting new statistics */
997 /* writew(MIB_CLEAR, mmio + MIB_ADDR);*/
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400998
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999 spin_unlock_irqrestore (&lp->lock, flags);
1000
1001 return new_stats;
1002}
Robert P. J. Day3a4fa0a2007-10-19 23:10:43 +02001003/* This function recalculate the interrupt coalescing mode on every interrupt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004according to the datarate and the packet rate.
1005*/
1006static int amd8111e_calc_coalesce(struct net_device *dev)
1007{
1008 struct amd8111e_priv *lp = netdev_priv(dev);
1009 struct amd8111e_coalesce_conf * coal_conf = &lp->coal_conf;
1010 int tx_pkt_rate;
1011 int rx_pkt_rate;
1012 int tx_data_rate;
1013 int rx_data_rate;
1014 int rx_pkt_size;
1015 int tx_pkt_size;
1016
1017 tx_pkt_rate = coal_conf->tx_packets - coal_conf->tx_prev_packets;
1018 coal_conf->tx_prev_packets = coal_conf->tx_packets;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001019
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020 tx_data_rate = coal_conf->tx_bytes - coal_conf->tx_prev_bytes;
1021 coal_conf->tx_prev_bytes = coal_conf->tx_bytes;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001022
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023 rx_pkt_rate = coal_conf->rx_packets - coal_conf->rx_prev_packets;
1024 coal_conf->rx_prev_packets = coal_conf->rx_packets;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001025
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026 rx_data_rate = coal_conf->rx_bytes - coal_conf->rx_prev_bytes;
1027 coal_conf->rx_prev_bytes = coal_conf->rx_bytes;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001028
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029 if(rx_pkt_rate < 800){
1030 if(coal_conf->rx_coal_type != NO_COALESCE){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001031
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032 coal_conf->rx_timeout = 0x0;
1033 coal_conf->rx_event_count = 0;
1034 amd8111e_set_coalesce(dev,RX_INTR_COAL);
1035 coal_conf->rx_coal_type = NO_COALESCE;
1036 }
1037 }
1038 else{
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001039
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040 rx_pkt_size = rx_data_rate/rx_pkt_rate;
1041 if (rx_pkt_size < 128){
1042 if(coal_conf->rx_coal_type != NO_COALESCE){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001043
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044 coal_conf->rx_timeout = 0;
1045 coal_conf->rx_event_count = 0;
1046 amd8111e_set_coalesce(dev,RX_INTR_COAL);
1047 coal_conf->rx_coal_type = NO_COALESCE;
1048 }
1049
1050 }
1051 else if ( (rx_pkt_size >= 128) && (rx_pkt_size < 512) ){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001052
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053 if(coal_conf->rx_coal_type != LOW_COALESCE){
1054 coal_conf->rx_timeout = 1;
1055 coal_conf->rx_event_count = 4;
1056 amd8111e_set_coalesce(dev,RX_INTR_COAL);
1057 coal_conf->rx_coal_type = LOW_COALESCE;
1058 }
1059 }
1060 else if ((rx_pkt_size >= 512) && (rx_pkt_size < 1024)){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001061
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062 if(coal_conf->rx_coal_type != MEDIUM_COALESCE){
1063 coal_conf->rx_timeout = 1;
1064 coal_conf->rx_event_count = 4;
1065 amd8111e_set_coalesce(dev,RX_INTR_COAL);
1066 coal_conf->rx_coal_type = MEDIUM_COALESCE;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001067 }
1068
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069 }
1070 else if(rx_pkt_size >= 1024){
1071 if(coal_conf->rx_coal_type != HIGH_COALESCE){
1072 coal_conf->rx_timeout = 2;
1073 coal_conf->rx_event_count = 3;
1074 amd8111e_set_coalesce(dev,RX_INTR_COAL);
1075 coal_conf->rx_coal_type = HIGH_COALESCE;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001076 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077 }
1078 }
1079 /* NOW FOR TX INTR COALESC */
1080 if(tx_pkt_rate < 800){
1081 if(coal_conf->tx_coal_type != NO_COALESCE){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001082
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083 coal_conf->tx_timeout = 0x0;
1084 coal_conf->tx_event_count = 0;
1085 amd8111e_set_coalesce(dev,TX_INTR_COAL);
1086 coal_conf->tx_coal_type = NO_COALESCE;
1087 }
1088 }
1089 else{
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001090
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091 tx_pkt_size = tx_data_rate/tx_pkt_rate;
1092 if (tx_pkt_size < 128){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001093
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094 if(coal_conf->tx_coal_type != NO_COALESCE){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001095
Linus Torvalds1da177e2005-04-16 15:20:36 -07001096 coal_conf->tx_timeout = 0;
1097 coal_conf->tx_event_count = 0;
1098 amd8111e_set_coalesce(dev,TX_INTR_COAL);
1099 coal_conf->tx_coal_type = NO_COALESCE;
1100 }
1101
1102 }
1103 else if ( (tx_pkt_size >= 128) && (tx_pkt_size < 512) ){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001104
Linus Torvalds1da177e2005-04-16 15:20:36 -07001105 if(coal_conf->tx_coal_type != LOW_COALESCE){
1106 coal_conf->tx_timeout = 1;
1107 coal_conf->tx_event_count = 2;
1108 amd8111e_set_coalesce(dev,TX_INTR_COAL);
1109 coal_conf->tx_coal_type = LOW_COALESCE;
1110
1111 }
1112 }
1113 else if ((tx_pkt_size >= 512) && (tx_pkt_size < 1024)){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001114
Linus Torvalds1da177e2005-04-16 15:20:36 -07001115 if(coal_conf->tx_coal_type != MEDIUM_COALESCE){
1116 coal_conf->tx_timeout = 2;
1117 coal_conf->tx_event_count = 5;
1118 amd8111e_set_coalesce(dev,TX_INTR_COAL);
1119 coal_conf->tx_coal_type = MEDIUM_COALESCE;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001120 }
1121
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122 }
1123 else if(tx_pkt_size >= 1024){
1124 if (tx_pkt_size >= 1024){
1125 if(coal_conf->tx_coal_type != HIGH_COALESCE){
1126 coal_conf->tx_timeout = 4;
1127 coal_conf->tx_event_count = 8;
1128 amd8111e_set_coalesce(dev,TX_INTR_COAL);
1129 coal_conf->tx_coal_type = HIGH_COALESCE;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001130 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131 }
1132 }
1133 }
1134 return 0;
1135
1136}
1137/*
1138This is device interrupt function. It handles transmit, receive,link change and hardware timer interrupts.
1139*/
David Howells7d12e782006-10-05 14:55:46 +01001140static irqreturn_t amd8111e_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001141{
1142
1143 struct net_device * dev = (struct net_device *) dev_id;
1144 struct amd8111e_priv *lp = netdev_priv(dev);
1145 void __iomem *mmio = lp->mmio;
Liu Taodfa1b732005-05-12 19:40:38 -04001146 unsigned int intr0, intren0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001147 unsigned int handled = 1;
1148
Liu Taodfa1b732005-05-12 19:40:38 -04001149 if(unlikely(dev == NULL))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150 return IRQ_NONE;
1151
Liu Taodfa1b732005-05-12 19:40:38 -04001152 spin_lock(&lp->lock);
1153
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154 /* disabling interrupt */
1155 writel(INTREN, mmio + CMD0);
1156
1157 /* Read interrupt status */
1158 intr0 = readl(mmio + INT0);
Liu Taodfa1b732005-05-12 19:40:38 -04001159 intren0 = readl(mmio + INTEN0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160
1161 /* Process all the INT event until INTR bit is clear. */
1162
1163 if (!(intr0 & INTR)){
1164 handled = 0;
1165 goto err_no_interrupt;
1166 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001167
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168 /* Current driver processes 4 interrupts : RINT,TINT,LCINT,STINT */
1169 writel(intr0, mmio + INT0);
1170
1171 /* Check if Receive Interrupt has occurred. */
Francois Romieu6ba33ac2008-07-06 20:55:12 -07001172 if (intr0 & RINT0) {
Ben Hutchings288379f2009-01-19 16:43:59 -08001173 if (napi_schedule_prep(&lp->napi)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174 /* Disable receive interupts */
1175 writel(RINTEN0, mmio + INTEN0);
1176 /* Schedule a polling routine */
Ben Hutchings288379f2009-01-19 16:43:59 -08001177 __napi_schedule(&lp->napi);
Francois Romieu6ba33ac2008-07-06 20:55:12 -07001178 } else if (intren0 & RINTEN0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179 printk("************Driver bug! \
1180 interrupt while in poll\n");
Liu Taodfa1b732005-05-12 19:40:38 -04001181 /* Fix by disable receive interrupts */
1182 writel(RINTEN0, mmio + INTEN0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183 }
1184 }
Francois Romieu6ba33ac2008-07-06 20:55:12 -07001185
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186 /* Check if Transmit Interrupt has occurred. */
Francois Romieu6ba33ac2008-07-06 20:55:12 -07001187 if (intr0 & TINT0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188 amd8111e_tx(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001189
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190 /* Check if Link Change Interrupt has occurred. */
1191 if (intr0 & LCINT)
1192 amd8111e_link_change(dev);
1193
1194 /* Check if Hardware Timer Interrupt has occurred. */
1195 if (intr0 & STINT)
1196 amd8111e_calc_coalesce(dev);
1197
1198err_no_interrupt:
1199 writel( VAL0 | INTREN,mmio + CMD0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001200
Liu Taodfa1b732005-05-12 19:40:38 -04001201 spin_unlock(&lp->lock);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001202
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203 return IRQ_RETVAL(handled);
1204}
1205
1206#ifdef CONFIG_NET_POLL_CONTROLLER
1207static void amd8111e_poll(struct net_device *dev)
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001208{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209 unsigned long flags;
Jiri Kosinab7e36bf2007-02-05 16:29:49 -08001210 local_irq_save(flags);
David Howells7d12e782006-10-05 14:55:46 +01001211 amd8111e_interrupt(0, dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001212 local_irq_restore(flags);
1213}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001214#endif
1215
1216
1217/*
1218This function closes the network interface and updates the statistics so that most recent statistics will be available after the interface is down.
1219*/
1220static int amd8111e_close(struct net_device * dev)
1221{
1222 struct amd8111e_priv *lp = netdev_priv(dev);
1223 netif_stop_queue(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001224
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001225 napi_disable(&lp->napi);
1226
Linus Torvalds1da177e2005-04-16 15:20:36 -07001227 spin_lock_irq(&lp->lock);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001228
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 amd8111e_disable_interrupt(lp);
1230 amd8111e_stop_chip(lp);
Chunbo Luoe83603f2008-10-28 09:51:46 +08001231
1232 /* Free transmit and receive skbs */
1233 amd8111e_free_skbs(lp->amd8111e_net_dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001234
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235 netif_carrier_off(lp->amd8111e_net_dev);
1236
1237 /* Delete ipg timer */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001238 if(lp->options & OPTION_DYN_IPG_ENABLE)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239 del_timer_sync(&lp->ipg_data.ipg_timer);
1240
1241 spin_unlock_irq(&lp->lock);
1242 free_irq(dev->irq, dev);
Chunbo Luoe83603f2008-10-28 09:51:46 +08001243 amd8111e_free_ring(lp);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001244
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245 /* Update the statistics before closing */
1246 amd8111e_get_stats(dev);
1247 lp->opened = 0;
1248 return 0;
1249}
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001250/* This function opens new interface.It requests irq for the device, initializes the device,buffers and descriptors, and starts the device.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251*/
1252static int amd8111e_open(struct net_device * dev )
1253{
1254 struct amd8111e_priv *lp = netdev_priv(dev);
1255
Thomas Gleixner1fb9df52006-07-01 19:29:39 -07001256 if(dev->irq ==0 || request_irq(dev->irq, amd8111e_interrupt, IRQF_SHARED,
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001257 dev->name, dev))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001258 return -EAGAIN;
1259
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001260 napi_enable(&lp->napi);
1261
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262 spin_lock_irq(&lp->lock);
1263
1264 amd8111e_init_hw_default(lp);
1265
1266 if(amd8111e_restart(dev)){
1267 spin_unlock_irq(&lp->lock);
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001268 napi_disable(&lp->napi);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269 if (dev->irq)
1270 free_irq(dev->irq, dev);
1271 return -ENOMEM;
1272 }
1273 /* Start ipg timer */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001274 if(lp->options & OPTION_DYN_IPG_ENABLE){
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275 add_timer(&lp->ipg_data.ipg_timer);
1276 printk(KERN_INFO "%s: Dynamic IPG Enabled.\n",dev->name);
1277 }
1278
1279 lp->opened = 1;
1280
1281 spin_unlock_irq(&lp->lock);
1282
1283 netif_start_queue(dev);
1284
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001285 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001286}
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001287/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288This function checks if there is any transmit descriptors available to queue more packet.
1289*/
1290static int amd8111e_tx_queue_avail(struct amd8111e_priv* lp )
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001291{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292 int tx_index = lp->tx_idx & TX_BUFF_MOD_MASK;
Al Viroee41a822007-08-22 21:37:46 -04001293 if (lp->tx_skbuff[tx_index])
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294 return -1;
1295 else
1296 return 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001297
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298}
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001299/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300This function will queue the transmit packets to the descriptors and will trigger the send operation. It also initializes the transmit descriptors with buffer physical address, byte count, ownership to hardware etc.
1301*/
1302
1303static int amd8111e_start_xmit(struct sk_buff *skb, struct net_device * dev)
1304{
1305 struct amd8111e_priv *lp = netdev_priv(dev);
1306 int tx_index;
1307 unsigned long flags;
1308
1309 spin_lock_irqsave(&lp->lock, flags);
1310
1311 tx_index = lp->tx_idx & TX_RING_DR_MOD_MASK;
1312
1313 lp->tx_ring[tx_index].buff_count = cpu_to_le16(skb->len);
1314
1315 lp->tx_skbuff[tx_index] = skb;
1316 lp->tx_ring[tx_index].tx_flags = 0;
1317
1318#if AMD8111E_VLAN_TAG_USED
1319 if((lp->vlgrp != NULL) && vlan_tx_tag_present(skb)){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001320 lp->tx_ring[tx_index].tag_ctrl_cmd |=
1321 cpu_to_le16(TCC_VLAN_INSERT);
1322 lp->tx_ring[tx_index].tag_ctrl_info =
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323 cpu_to_le16(vlan_tx_tag_get(skb));
1324
1325 }
1326#endif
1327 lp->tx_dma_addr[tx_index] =
1328 pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE);
1329 lp->tx_ring[tx_index].buff_phy_addr =
Al Viroee41a822007-08-22 21:37:46 -04001330 cpu_to_le32(lp->tx_dma_addr[tx_index]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001331
1332 /* Set FCS and LTINT bits */
1333 wmb();
1334 lp->tx_ring[tx_index].tx_flags |=
1335 cpu_to_le16(OWN_BIT | STP_BIT | ENP_BIT|ADD_FCS_BIT|LTINT_BIT);
1336
1337 lp->tx_idx++;
1338
1339 /* Trigger an immediate send poll. */
1340 writel( VAL1 | TDMD0, lp->mmio + CMD0);
1341 writel( VAL2 | RDMD0,lp->mmio + CMD0);
1342
1343 dev->trans_start = jiffies;
1344
1345 if(amd8111e_tx_queue_avail(lp) < 0){
1346 netif_stop_queue(dev);
1347 }
1348 spin_unlock_irqrestore(&lp->lock, flags);
1349 return 0;
1350}
1351/*
1352This function returns all the memory mapped registers of the device.
1353*/
1354static void amd8111e_read_regs(struct amd8111e_priv *lp, u32 *buf)
1355{
1356 void __iomem *mmio = lp->mmio;
1357 /* Read only necessary registers */
1358 buf[0] = readl(mmio + XMT_RING_BASE_ADDR0);
1359 buf[1] = readl(mmio + XMT_RING_LEN0);
1360 buf[2] = readl(mmio + RCV_RING_BASE_ADDR0);
1361 buf[3] = readl(mmio + RCV_RING_LEN0);
1362 buf[4] = readl(mmio + CMD0);
1363 buf[5] = readl(mmio + CMD2);
1364 buf[6] = readl(mmio + CMD3);
1365 buf[7] = readl(mmio + CMD7);
1366 buf[8] = readl(mmio + INT0);
1367 buf[9] = readl(mmio + INTEN0);
1368 buf[10] = readl(mmio + LADRF);
1369 buf[11] = readl(mmio + LADRF+4);
1370 buf[12] = readl(mmio + STAT0);
1371}
1372
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374/*
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001375This function sets promiscuos mode, all-multi mode or the multicast address
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376list to the device.
1377*/
1378static void amd8111e_set_multicast_list(struct net_device *dev)
1379{
1380 struct dev_mc_list* mc_ptr;
1381 struct amd8111e_priv *lp = netdev_priv(dev);
1382 u32 mc_filter[2] ;
1383 int i,bit_num;
1384 if(dev->flags & IFF_PROMISC){
Linus Torvalds1da177e2005-04-16 15:20:36 -07001385 writel( VAL2 | PROM, lp->mmio + CMD2);
1386 return;
1387 }
1388 else
1389 writel( PROM, lp->mmio + CMD2);
1390 if(dev->flags & IFF_ALLMULTI || dev->mc_count > MAX_FILTER_SIZE){
1391 /* get all multicast packet */
1392 mc_filter[1] = mc_filter[0] = 0xffffffff;
1393 lp->mc_list = dev->mc_list;
1394 lp->options |= OPTION_MULTICAST_ENABLE;
1395 amd8111e_writeq(*(u64*)mc_filter,lp->mmio + LADRF);
1396 return;
1397 }
1398 if( dev->mc_count == 0 ){
1399 /* get only own packets */
1400 mc_filter[1] = mc_filter[0] = 0;
1401 lp->mc_list = NULL;
1402 lp->options &= ~OPTION_MULTICAST_ENABLE;
1403 amd8111e_writeq(*(u64*)mc_filter,lp->mmio + LADRF);
1404 /* disable promiscous mode */
1405 writel(PROM, lp->mmio + CMD2);
1406 return;
1407 }
1408 /* load all the multicast addresses in the logic filter */
1409 lp->options |= OPTION_MULTICAST_ENABLE;
1410 lp->mc_list = dev->mc_list;
1411 mc_filter[1] = mc_filter[0] = 0;
1412 for (i = 0, mc_ptr = dev->mc_list; mc_ptr && i < dev->mc_count;
1413 i++, mc_ptr = mc_ptr->next) {
Stephen Hemminger6b4bdde2006-12-01 16:10:50 -08001414 bit_num = (ether_crc_le(ETH_ALEN, mc_ptr->dmi_addr) >> 26) & 0x3f;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415 mc_filter[bit_num >> 5] |= 1 << (bit_num & 31);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001416 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417 amd8111e_writeq(*(u64*)mc_filter,lp->mmio+ LADRF);
1418
1419 /* To eliminate PCI posting bug */
1420 readl(lp->mmio + CMD2);
1421
1422}
1423
1424static void amd8111e_get_drvinfo(struct net_device* dev, struct ethtool_drvinfo *info)
1425{
1426 struct amd8111e_priv *lp = netdev_priv(dev);
1427 struct pci_dev *pci_dev = lp->pci_dev;
1428 strcpy (info->driver, MODULE_NAME);
1429 strcpy (info->version, MODULE_VERS);
1430 sprintf(info->fw_version,"%u",chip_version);
1431 strcpy (info->bus_info, pci_name(pci_dev));
1432}
1433
1434static int amd8111e_get_regs_len(struct net_device *dev)
1435{
1436 return AMD8111E_REG_DUMP_LEN;
1437}
1438
1439static void amd8111e_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf)
1440{
1441 struct amd8111e_priv *lp = netdev_priv(dev);
1442 regs->version = 0;
1443 amd8111e_read_regs(lp, buf);
1444}
1445
1446static int amd8111e_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1447{
1448 struct amd8111e_priv *lp = netdev_priv(dev);
1449 spin_lock_irq(&lp->lock);
1450 mii_ethtool_gset(&lp->mii_if, ecmd);
1451 spin_unlock_irq(&lp->lock);
1452 return 0;
1453}
1454
1455static int amd8111e_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1456{
1457 struct amd8111e_priv *lp = netdev_priv(dev);
1458 int res;
1459 spin_lock_irq(&lp->lock);
1460 res = mii_ethtool_sset(&lp->mii_if, ecmd);
1461 spin_unlock_irq(&lp->lock);
1462 return res;
1463}
1464
1465static int amd8111e_nway_reset(struct net_device *dev)
1466{
1467 struct amd8111e_priv *lp = netdev_priv(dev);
1468 return mii_nway_restart(&lp->mii_if);
1469}
1470
1471static u32 amd8111e_get_link(struct net_device *dev)
1472{
1473 struct amd8111e_priv *lp = netdev_priv(dev);
1474 return mii_link_ok(&lp->mii_if);
1475}
1476
1477static void amd8111e_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol_info)
1478{
1479 struct amd8111e_priv *lp = netdev_priv(dev);
1480 wol_info->supported = WAKE_MAGIC|WAKE_PHY;
1481 if (lp->options & OPTION_WOL_ENABLE)
1482 wol_info->wolopts = WAKE_MAGIC;
1483}
1484
1485static int amd8111e_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol_info)
1486{
1487 struct amd8111e_priv *lp = netdev_priv(dev);
1488 if (wol_info->wolopts & ~(WAKE_MAGIC|WAKE_PHY))
1489 return -EINVAL;
1490 spin_lock_irq(&lp->lock);
1491 if (wol_info->wolopts & WAKE_MAGIC)
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001492 lp->options |=
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493 (OPTION_WOL_ENABLE | OPTION_WAKE_MAGIC_ENABLE);
1494 else if(wol_info->wolopts & WAKE_PHY)
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001495 lp->options |=
Linus Torvalds1da177e2005-04-16 15:20:36 -07001496 (OPTION_WOL_ENABLE | OPTION_WAKE_PHY_ENABLE);
1497 else
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001498 lp->options &= ~OPTION_WOL_ENABLE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001499 spin_unlock_irq(&lp->lock);
1500 return 0;
1501}
1502
Jeff Garzik7282d492006-09-13 14:30:00 -04001503static const struct ethtool_ops ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504 .get_drvinfo = amd8111e_get_drvinfo,
1505 .get_regs_len = amd8111e_get_regs_len,
1506 .get_regs = amd8111e_get_regs,
1507 .get_settings = amd8111e_get_settings,
1508 .set_settings = amd8111e_set_settings,
1509 .nway_reset = amd8111e_nway_reset,
1510 .get_link = amd8111e_get_link,
1511 .get_wol = amd8111e_get_wol,
1512 .set_wol = amd8111e_set_wol,
1513};
1514
1515/*
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001516This function handles all the ethtool ioctls. It gives driver info, gets/sets driver speed, gets memory mapped register values, forces auto negotiation, sets/gets WOL options for ethtool application.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001517*/
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001518
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519static int amd8111e_ioctl(struct net_device * dev , struct ifreq *ifr, int cmd)
1520{
1521 struct mii_ioctl_data *data = if_mii(ifr);
1522 struct amd8111e_priv *lp = netdev_priv(dev);
1523 int err;
1524 u32 mii_regval;
1525
1526 if (!capable(CAP_NET_ADMIN))
1527 return -EPERM;
1528
1529 switch(cmd) {
1530 case SIOCGMIIPHY:
1531 data->phy_id = lp->ext_phy_addr;
1532
1533 /* fallthru */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001534 case SIOCGMIIREG:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001535
1536 spin_lock_irq(&lp->lock);
1537 err = amd8111e_read_phy(lp, data->phy_id,
1538 data->reg_num & PHY_REG_ADDR_MASK, &mii_regval);
1539 spin_unlock_irq(&lp->lock);
1540
1541 data->val_out = mii_regval;
1542 return err;
1543
1544 case SIOCSMIIREG:
1545
1546 spin_lock_irq(&lp->lock);
1547 err = amd8111e_write_phy(lp, data->phy_id,
1548 data->reg_num & PHY_REG_ADDR_MASK, data->val_in);
1549 spin_unlock_irq(&lp->lock);
1550
1551 return err;
1552
1553 default:
1554 /* do nothing */
1555 break;
1556 }
1557 return -EOPNOTSUPP;
1558}
1559static int amd8111e_set_mac_address(struct net_device *dev, void *p)
1560{
1561 struct amd8111e_priv *lp = netdev_priv(dev);
1562 int i;
1563 struct sockaddr *addr = p;
1564
1565 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1566 spin_lock_irq(&lp->lock);
1567 /* Setting the MAC address to the device */
1568 for(i = 0; i < ETH_ADDR_LEN; i++)
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001569 writeb( dev->dev_addr[i], lp->mmio + PADR + i );
1570
Linus Torvalds1da177e2005-04-16 15:20:36 -07001571 spin_unlock_irq(&lp->lock);
1572
1573 return 0;
1574}
1575
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001576/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001577This function changes the mtu of the device. It restarts the device to initialize the descriptor with new receive buffers.
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001578*/
Linus Torvalds1da177e2005-04-16 15:20:36 -07001579static int amd8111e_change_mtu(struct net_device *dev, int new_mtu)
1580{
1581 struct amd8111e_priv *lp = netdev_priv(dev);
1582 int err;
1583
1584 if ((new_mtu < AMD8111E_MIN_MTU) || (new_mtu > AMD8111E_MAX_MTU))
1585 return -EINVAL;
1586
1587 if (!netif_running(dev)) {
1588 /* new_mtu will be used
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001589 when device starts netxt time */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001590 dev->mtu = new_mtu;
1591 return 0;
1592 }
1593
1594 spin_lock_irq(&lp->lock);
1595
1596 /* stop the chip */
1597 writel(RUN, lp->mmio + CMD0);
1598
1599 dev->mtu = new_mtu;
1600
1601 err = amd8111e_restart(dev);
1602 spin_unlock_irq(&lp->lock);
1603 if(!err)
1604 netif_start_queue(dev);
1605 return err;
1606}
1607
1608#if AMD8111E_VLAN_TAG_USED
1609static void amd8111e_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
1610{
1611 struct amd8111e_priv *lp = netdev_priv(dev);
1612 spin_lock_irq(&lp->lock);
1613 lp->vlgrp = grp;
1614 spin_unlock_irq(&lp->lock);
1615}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001616#endif
Stephen Hemminger25805dc2007-06-01 09:44:01 -07001617
Linus Torvalds1da177e2005-04-16 15:20:36 -07001618static int amd8111e_enable_magicpkt(struct amd8111e_priv* lp)
1619{
1620 writel( VAL1|MPPLBA, lp->mmio + CMD3);
1621 writel( VAL0|MPEN_SW, lp->mmio + CMD7);
1622
1623 /* To eliminate PCI posting bug */
1624 readl(lp->mmio + CMD7);
1625 return 0;
1626}
1627
1628static int amd8111e_enable_link_change(struct amd8111e_priv* lp)
1629{
1630
1631 /* Adapter is already stoped/suspended/interrupt-disabled */
1632 writel(VAL0|LCMODE_SW,lp->mmio + CMD7);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001633
Linus Torvalds1da177e2005-04-16 15:20:36 -07001634 /* To eliminate PCI posting bug */
1635 readl(lp->mmio + CMD7);
1636 return 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001637}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001638/* This function is called when a packet transmission fails to complete within a resonable period, on the assumption that an interrupts have been failed or the interface is locked up. This function will reinitialize the hardware */
1639
1640static void amd8111e_tx_timeout(struct net_device *dev)
1641{
1642 struct amd8111e_priv* lp = netdev_priv(dev);
1643 int err;
1644
1645 printk(KERN_ERR "%s: transmit timed out, resetting\n",
1646 dev->name);
1647 spin_lock_irq(&lp->lock);
1648 err = amd8111e_restart(dev);
1649 spin_unlock_irq(&lp->lock);
1650 if(!err)
1651 netif_wake_queue(dev);
1652}
1653static int amd8111e_suspend(struct pci_dev *pci_dev, pm_message_t state)
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001654{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001655 struct net_device *dev = pci_get_drvdata(pci_dev);
1656 struct amd8111e_priv *lp = netdev_priv(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001657
Linus Torvalds1da177e2005-04-16 15:20:36 -07001658 if (!netif_running(dev))
1659 return 0;
1660
1661 /* disable the interrupt */
1662 spin_lock_irq(&lp->lock);
1663 amd8111e_disable_interrupt(lp);
1664 spin_unlock_irq(&lp->lock);
1665
1666 netif_device_detach(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001667
Linus Torvalds1da177e2005-04-16 15:20:36 -07001668 /* stop chip */
1669 spin_lock_irq(&lp->lock);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001670 if(lp->options & OPTION_DYN_IPG_ENABLE)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001671 del_timer_sync(&lp->ipg_data.ipg_timer);
1672 amd8111e_stop_chip(lp);
1673 spin_unlock_irq(&lp->lock);
1674
1675 if(lp->options & OPTION_WOL_ENABLE){
1676 /* enable wol */
1677 if(lp->options & OPTION_WAKE_MAGIC_ENABLE)
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001678 amd8111e_enable_magicpkt(lp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001679 if(lp->options & OPTION_WAKE_PHY_ENABLE)
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001680 amd8111e_enable_link_change(lp);
1681
Linus Torvalds1da177e2005-04-16 15:20:36 -07001682 pci_enable_wake(pci_dev, PCI_D3hot, 1);
1683 pci_enable_wake(pci_dev, PCI_D3cold, 1);
1684
1685 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001686 else{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001687 pci_enable_wake(pci_dev, PCI_D3hot, 0);
1688 pci_enable_wake(pci_dev, PCI_D3cold, 0);
1689 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001690
Linus Torvalds1da177e2005-04-16 15:20:36 -07001691 pci_save_state(pci_dev);
1692 pci_set_power_state(pci_dev, PCI_D3hot);
1693
1694 return 0;
1695}
1696static int amd8111e_resume(struct pci_dev *pci_dev)
1697{
1698 struct net_device *dev = pci_get_drvdata(pci_dev);
1699 struct amd8111e_priv *lp = netdev_priv(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001700
Linus Torvalds1da177e2005-04-16 15:20:36 -07001701 if (!netif_running(dev))
1702 return 0;
1703
1704 pci_set_power_state(pci_dev, PCI_D0);
1705 pci_restore_state(pci_dev);
1706
1707 pci_enable_wake(pci_dev, PCI_D3hot, 0);
1708 pci_enable_wake(pci_dev, PCI_D3cold, 0); /* D3 cold */
1709
1710 netif_device_attach(dev);
1711
1712 spin_lock_irq(&lp->lock);
1713 amd8111e_restart(dev);
1714 /* Restart ipg timer */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001715 if(lp->options & OPTION_DYN_IPG_ENABLE)
1716 mod_timer(&lp->ipg_data.ipg_timer,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001717 jiffies + IPG_CONVERGE_JIFFIES);
1718 spin_unlock_irq(&lp->lock);
1719
1720 return 0;
1721}
1722
1723
1724static void __devexit amd8111e_remove_one(struct pci_dev *pdev)
1725{
1726 struct net_device *dev = pci_get_drvdata(pdev);
1727 if (dev) {
1728 unregister_netdev(dev);
1729 iounmap(((struct amd8111e_priv *)netdev_priv(dev))->mmio);
1730 free_netdev(dev);
1731 pci_release_regions(pdev);
1732 pci_disable_device(pdev);
1733 pci_set_drvdata(pdev, NULL);
1734 }
1735}
1736static void amd8111e_config_ipg(struct net_device* dev)
1737{
1738 struct amd8111e_priv *lp = netdev_priv(dev);
1739 struct ipg_info* ipg_data = &lp->ipg_data;
1740 void __iomem *mmio = lp->mmio;
1741 unsigned int prev_col_cnt = ipg_data->col_cnt;
1742 unsigned int total_col_cnt;
1743 unsigned int tmp_ipg;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001744
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745 if(lp->link_config.duplex == DUPLEX_FULL){
1746 ipg_data->ipg = DEFAULT_IPG;
1747 return;
1748 }
1749
1750 if(ipg_data->ipg_state == SSTATE){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001751
Linus Torvalds1da177e2005-04-16 15:20:36 -07001752 if(ipg_data->timer_tick == IPG_STABLE_TIME){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001753
Linus Torvalds1da177e2005-04-16 15:20:36 -07001754 ipg_data->timer_tick = 0;
1755 ipg_data->ipg = MIN_IPG - IPG_STEP;
1756 ipg_data->current_ipg = MIN_IPG;
1757 ipg_data->diff_col_cnt = 0xFFFFFFFF;
1758 ipg_data->ipg_state = CSTATE;
1759 }
1760 else
1761 ipg_data->timer_tick++;
1762 }
1763
1764 if(ipg_data->ipg_state == CSTATE){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001765
Linus Torvalds1da177e2005-04-16 15:20:36 -07001766 /* Get the current collision count */
1767
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001768 total_col_cnt = ipg_data->col_cnt =
Linus Torvalds1da177e2005-04-16 15:20:36 -07001769 amd8111e_read_mib(mmio, xmt_collisions);
1770
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001771 if ((total_col_cnt - prev_col_cnt) <
Linus Torvalds1da177e2005-04-16 15:20:36 -07001772 (ipg_data->diff_col_cnt)){
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001773
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774 ipg_data->diff_col_cnt =
1775 total_col_cnt - prev_col_cnt ;
1776
1777 ipg_data->ipg = ipg_data->current_ipg;
1778 }
1779
1780 ipg_data->current_ipg += IPG_STEP;
1781
1782 if (ipg_data->current_ipg <= MAX_IPG)
1783 tmp_ipg = ipg_data->current_ipg;
1784 else{
1785 tmp_ipg = ipg_data->ipg;
1786 ipg_data->ipg_state = SSTATE;
1787 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001788 writew((u32)tmp_ipg, mmio + IPG);
1789 writew((u32)(tmp_ipg - IFS1_DELTA), mmio + IFS1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790 }
1791 mod_timer(&lp->ipg_data.ipg_timer, jiffies + IPG_CONVERGE_JIFFIES);
1792 return;
1793
1794}
1795
1796static void __devinit amd8111e_probe_ext_phy(struct net_device* dev)
1797{
1798 struct amd8111e_priv *lp = netdev_priv(dev);
1799 int i;
1800
1801 for (i = 0x1e; i >= 0; i--) {
1802 u32 id1, id2;
1803
1804 if (amd8111e_read_phy(lp, i, MII_PHYSID1, &id1))
1805 continue;
1806 if (amd8111e_read_phy(lp, i, MII_PHYSID2, &id2))
1807 continue;
1808 lp->ext_phy_id = (id1 << 16) | id2;
1809 lp->ext_phy_addr = i;
1810 return;
1811 }
1812 lp->ext_phy_id = 0;
1813 lp->ext_phy_addr = 1;
1814}
1815
Stephen Hemminger887e53d2009-01-07 18:09:58 -08001816static const struct net_device_ops amd8111e_netdev_ops = {
1817 .ndo_open = amd8111e_open,
1818 .ndo_stop = amd8111e_close,
1819 .ndo_start_xmit = amd8111e_start_xmit,
1820 .ndo_tx_timeout = amd8111e_tx_timeout,
1821 .ndo_get_stats = amd8111e_get_stats,
1822 .ndo_set_multicast_list = amd8111e_set_multicast_list,
1823 .ndo_validate_addr = eth_validate_addr,
1824 .ndo_set_mac_address = amd8111e_set_mac_address,
1825 .ndo_do_ioctl = amd8111e_ioctl,
1826 .ndo_change_mtu = amd8111e_change_mtu,
1827#if AMD8111E_VLAN_TAG_USED
1828 .ndo_vlan_rx_register = amd8111e_vlan_rx_register,
1829#endif
1830#ifdef CONFIG_NET_POLL_CONTROLLER
1831 .ndo_poll_controller = amd8111e_poll,
1832#endif
1833};
1834
Linus Torvalds1da177e2005-04-16 15:20:36 -07001835static int __devinit amd8111e_probe_one(struct pci_dev *pdev,
1836 const struct pci_device_id *ent)
1837{
1838 int err,i,pm_cap;
1839 unsigned long reg_addr,reg_len;
1840 struct amd8111e_priv* lp;
1841 struct net_device* dev;
1842
1843 err = pci_enable_device(pdev);
1844 if(err){
Joe Perches24500222007-11-19 17:48:28 -08001845 printk(KERN_ERR "amd8111e: Cannot enable new PCI device, "
Linus Torvalds1da177e2005-04-16 15:20:36 -07001846 "exiting.\n");
1847 return err;
1848 }
1849
1850 if(!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)){
Joe Perches24500222007-11-19 17:48:28 -08001851 printk(KERN_ERR "amd8111e: Cannot find PCI base address, "
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852 "exiting.\n");
1853 err = -ENODEV;
1854 goto err_disable_pdev;
1855 }
1856
1857 err = pci_request_regions(pdev, MODULE_NAME);
1858 if(err){
1859 printk(KERN_ERR "amd8111e: Cannot obtain PCI resources, "
1860 "exiting.\n");
1861 goto err_disable_pdev;
1862 }
1863
1864 pci_set_master(pdev);
1865
1866 /* Find power-management capability. */
1867 if((pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM))==0){
1868 printk(KERN_ERR "amd8111e: No Power Management capability, "
1869 "exiting.\n");
1870 goto err_free_reg;
1871 }
1872
1873 /* Initialize DMA */
Yang Hongyang284901a2009-04-06 19:01:15 -07001874 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) < 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001875 printk(KERN_ERR "amd8111e: DMA not supported,"
1876 "exiting.\n");
Tobias Klausercac8c812005-05-16 19:15:11 +02001877 goto err_free_reg;
1878 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001879
Linus Torvalds1da177e2005-04-16 15:20:36 -07001880 reg_addr = pci_resource_start(pdev, 0);
1881 reg_len = pci_resource_len(pdev, 0);
1882
1883 dev = alloc_etherdev(sizeof(struct amd8111e_priv));
1884 if (!dev) {
1885 printk(KERN_ERR "amd8111e: Etherdev alloc failed, exiting.\n");
1886 err = -ENOMEM;
1887 goto err_free_reg;
1888 }
1889
Linus Torvalds1da177e2005-04-16 15:20:36 -07001890 SET_NETDEV_DEV(dev, &pdev->dev);
1891
1892#if AMD8111E_VLAN_TAG_USED
1893 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX ;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001894#endif
1895
Linus Torvalds1da177e2005-04-16 15:20:36 -07001896 lp = netdev_priv(dev);
1897 lp->pci_dev = pdev;
1898 lp->amd8111e_net_dev = dev;
1899 lp->pm_cap = pm_cap;
1900
1901 spin_lock_init(&lp->lock);
1902
1903 lp->mmio = ioremap(reg_addr, reg_len);
Al Viroee41a822007-08-22 21:37:46 -04001904 if (!lp->mmio) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905 printk(KERN_ERR "amd8111e: Cannot map device registers, "
1906 "exiting\n");
1907 err = -ENOMEM;
1908 goto err_free_dev;
1909 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001910
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911 /* Initializing MAC address */
1912 for(i = 0; i < ETH_ADDR_LEN; i++)
Joe Perches0795af52007-10-03 17:59:30 -07001913 dev->dev_addr[i] = readb(lp->mmio + PADR + i);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001914
Linus Torvalds1da177e2005-04-16 15:20:36 -07001915 /* Setting user defined parametrs */
1916 lp->ext_phy_option = speed_duplex[card_idx];
1917 if(coalesce[card_idx])
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001918 lp->options |= OPTION_INTR_COAL_ENABLE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001919 if(dynamic_ipg[card_idx++])
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001920 lp->options |= OPTION_DYN_IPG_ENABLE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001921
Stephen Hemminger887e53d2009-01-07 18:09:58 -08001922
Linus Torvalds1da177e2005-04-16 15:20:36 -07001923 /* Initialize driver entry points */
Stephen Hemminger887e53d2009-01-07 18:09:58 -08001924 dev->netdev_ops = &amd8111e_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001925 SET_ETHTOOL_OPS(dev, &ops);
1926 dev->irq =pdev->irq;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001927 dev->watchdog_timeo = AMD8111E_TX_TIMEOUT;
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001928 netif_napi_add(dev, &lp->napi, amd8111e_rx_poll, 32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001929
1930#if AMD8111E_VLAN_TAG_USED
1931 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001932#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001933 /* Probe the external PHY */
1934 amd8111e_probe_ext_phy(dev);
1935
1936 /* setting mii default values */
1937 lp->mii_if.dev = dev;
1938 lp->mii_if.mdio_read = amd8111e_mdio_read;
1939 lp->mii_if.mdio_write = amd8111e_mdio_write;
1940 lp->mii_if.phy_id = lp->ext_phy_addr;
1941
1942 /* Set receive buffer length and set jumbo option*/
1943 amd8111e_set_rx_buff_len(dev);
1944
1945
1946 err = register_netdev(dev);
1947 if (err) {
1948 printk(KERN_ERR "amd8111e: Cannot register net device, "
1949 "exiting.\n");
1950 goto err_iounmap;
1951 }
1952
1953 pci_set_drvdata(pdev, dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001954
Linus Torvalds1da177e2005-04-16 15:20:36 -07001955 /* Initialize software ipg timer */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001956 if(lp->options & OPTION_DYN_IPG_ENABLE){
Linus Torvalds1da177e2005-04-16 15:20:36 -07001957 init_timer(&lp->ipg_data.ipg_timer);
1958 lp->ipg_data.ipg_timer.data = (unsigned long) dev;
1959 lp->ipg_data.ipg_timer.function = (void *)&amd8111e_config_ipg;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001960 lp->ipg_data.ipg_timer.expires = jiffies +
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961 IPG_CONVERGE_JIFFIES;
1962 lp->ipg_data.ipg = DEFAULT_IPG;
1963 lp->ipg_data.ipg_state = CSTATE;
1964 };
1965
1966 /* display driver and device information */
1967
1968 chip_version = (readl(lp->mmio + CHIPID) & 0xf0000000)>>28;
Joe Perches0795af52007-10-03 17:59:30 -07001969 printk(KERN_INFO "%s: AMD-8111e Driver Version: %s\n",
1970 dev->name,MODULE_VERS);
Johannes Berge1749612008-10-27 15:59:26 -07001971 printk(KERN_INFO "%s: [ Rev %x ] PCI 10/100BaseT Ethernet %pM\n",
1972 dev->name, chip_version, dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001973 if (lp->ext_phy_id)
1974 printk(KERN_INFO "%s: Found MII PHY ID 0x%08x at address 0x%02x\n",
1975 dev->name, lp->ext_phy_id, lp->ext_phy_addr);
1976 else
1977 printk(KERN_INFO "%s: Couldn't detect MII PHY, assuming address 0x01\n",
1978 dev->name);
1979 return 0;
1980err_iounmap:
1981 iounmap(lp->mmio);
1982
1983err_free_dev:
1984 free_netdev(dev);
1985
1986err_free_reg:
1987 pci_release_regions(pdev);
1988
1989err_disable_pdev:
1990 pci_disable_device(pdev);
1991 pci_set_drvdata(pdev, NULL);
1992 return err;
1993
1994}
1995
1996static struct pci_driver amd8111e_driver = {
1997 .name = MODULE_NAME,
1998 .id_table = amd8111e_pci_tbl,
1999 .probe = amd8111e_probe_one,
2000 .remove = __devexit_p(amd8111e_remove_one),
2001 .suspend = amd8111e_suspend,
2002 .resume = amd8111e_resume
2003};
2004
2005static int __init amd8111e_init(void)
2006{
Jeff Garzik29917622006-08-19 17:48:59 -04002007 return pci_register_driver(&amd8111e_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002008}
2009
2010static void __exit amd8111e_cleanup(void)
2011{
2012 pci_unregister_driver(&amd8111e_driver);
2013}
2014
2015module_init(amd8111e_init);
2016module_exit(amd8111e_cleanup);