2 * Copyright(c) 2008 - 2009 Atheros Corporation. All rights reserved.
4 * Derived from Intel e1000 driver
5 * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc., 59
19 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 #include <linux/version.h>
26 #include <linux/init.h>
27 #include <linux/types.h>
28 #include <linux/errno.h>
29 #include <linux/module.h>
30 #include <linux/pci.h>
31 #include <linux/netdevice.h>
32 #include <linux/etherdevice.h>
33 #include <linux/skbuff.h>
34 #include <linux/ioport.h>
35 #include <linux/slab.h>
36 #include <linux/list.h>
37 #include <linux/delay.h>
38 #include <linux/sched.h>
41 #include <linux/ipv6.h>
42 #include <linux/udp.h>
43 #include <linux/mii.h>
45 #include <linux/vmalloc.h>
46 #include <linux/pagemap.h>
47 #include <linux/tcp.h>
48 #include <linux/mii.h>
49 #include <linux/ethtool.h>
50 #include <linux/if_vlan.h>
51 #include <linux/workqueue.h>
52 #include <net/checksum.h>
53 #include <net/ip6_checksum.h>
57 /* Wake Up Filter Control */
58 #define AT_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */
59 #define AT_WUFC_MAG 0x00000002 /* Magic Packet Wakeup Enable */
60 #define AT_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */
61 #define AT_WUFC_MC 0x00000008 /* Multicast Wakeup Enable */
62 #define AT_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */
64 #define AT_VLAN_TO_TAG(_vlan, _tag) \
65 _tag = ((((_vlan) >> 8) & 0xFF) |\
66 (((_vlan) & 0xFF) << 8))
68 #define AT_TAG_TO_VLAN(_tag, _vlan) \
69 _vlan = ((((_tag) >> 8) & 0xFF) |\
70 (((_tag) & 0xFF) << 8))
72 #define SPEED_0 0xffff
76 #define AT_RX_BUF_SIZE (ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN)
77 #define MAX_JUMBO_FRAME_SIZE (9*1024)
78 #define MAX_TX_OFFLOAD_THRESH (9*1024)
80 #define AT_MAX_RECEIVE_QUEUE 4
81 #define AT_DEF_RECEIVE_QUEUE 1
82 #define AT_MAX_TRANSMIT_QUEUE 2
84 #define AT_DMA_HI_ADDR_MASK 0xffffffff00000000ULL
85 #define AT_DMA_LO_ADDR_MASK 0x00000000ffffffffULL
87 #define AT_TX_WATCHDOG (5 * HZ)
88 #define AT_MAX_INT_WORK 5
89 #define AT_TWSI_EEPROM_TIMEOUT 100
90 #define AT_HW_MAX_IDLE_DELAY 10
91 #define AT_SUSPEND_LINK_TIMEOUT 28
93 #define AT_ASPM_L0S_TIMER 6
94 #define AT_ASPM_L1_TIMER 12
96 #define ATL1C_PCIE_L0S_L1_DISABLE 0x01
97 #define ATL1C_PCIE_PHY_RESET 0x02
99 #define ATL1C_ASPM_L0s_ENABLE 0x0001
100 #define ATL1C_ASPM_L1_ENABLE 0x0002
102 #define AT_REGS_LEN (75 * sizeof(u32))
103 #define AT_EEPROM_LEN 512
105 #define ATL1C_GET_DESC(R, i, type) (&(((type *)((R)->desc))[i]))
106 #define ATL1C_RFD_DESC(R, i) ATL1C_GET_DESC(R, i, struct atl1c_rx_free_desc)
107 #define ATL1C_TPD_DESC(R, i) ATL1C_GET_DESC(R, i, struct atl1c_tpd_desc)
108 #define ATL1C_RRD_DESC(R, i) ATL1C_GET_DESC(R, i, struct atl1c_recv_ret_status)
110 /* tpd word 1 bit 0:7 General Checksum task offload */
111 #define TPD_L4HDR_OFFSET_MASK 0x00FF
112 #define TPD_L4HDR_OFFSET_SHIFT 0
114 /* tpd word 1 bit 0:7 Large Send task offload (IPv4/IPV6) */
115 #define TPD_TCPHDR_OFFSET_MASK 0x00FF
116 #define TPD_TCPHDR_OFFSET_SHIFT 0
118 /* tpd word 1 bit 0:7 Custom Checksum task offload */
119 #define TPD_PLOADOFFSET_MASK 0x00FF
120 #define TPD_PLOADOFFSET_SHIFT 0
122 /* tpd word 1 bit 8:17 */
123 #define TPD_CCSUM_EN_MASK 0x0001
124 #define TPD_CCSUM_EN_SHIFT 8
125 #define TPD_IP_CSUM_MASK 0x0001
126 #define TPD_IP_CSUM_SHIFT 9
127 #define TPD_TCP_CSUM_MASK 0x0001
128 #define TPD_TCP_CSUM_SHIFT 10
129 #define TPD_UDP_CSUM_MASK 0x0001
130 #define TPD_UDP_CSUM_SHIFT 11
131 #define TPD_LSO_EN_MASK 0x0001 /* TCP Large Send Offload */
132 #define TPD_LSO_EN_SHIFT 12
133 #define TPD_LSO_VER_MASK 0x0001
134 #define TPD_LSO_VER_SHIFT 13 /* 0 : ipv4; 1 : ipv4/ipv6 */
135 #define TPD_CON_VTAG_MASK 0x0001
136 #define TPD_CON_VTAG_SHIFT 14
137 #define TPD_INS_VTAG_MASK 0x0001
138 #define TPD_INS_VTAG_SHIFT 15
139 #define TPD_IPV4_PACKET_MASK 0x0001 /* valid when LSO VER is 1 */
140 #define TPD_IPV4_PACKET_SHIFT 16
141 #define TPD_ETH_TYPE_MASK 0x0001
142 #define TPD_ETH_TYPE_SHIFT 17 /* 0 : 802.3 frame; 1 : Ethernet */
144 /* tpd word 18:25 Custom Checksum task offload */
145 #define TPD_CCSUM_OFFSET_MASK 0x00FF
146 #define TPD_CCSUM_OFFSET_SHIFT 18
147 #define TPD_CCSUM_EPAD_MASK 0x0001
148 #define TPD_CCSUM_EPAD_SHIFT 30
150 /* tpd word 18:30 Large Send task offload (IPv4/IPV6) */
151 #define TPD_MSS_MASK 0x1FFF
152 #define TPD_MSS_SHIFT 18
154 #define TPD_EOP_MASK 0x0001
155 #define TPD_EOP_SHIFT 31
157 struct atl1c_tpd_desc {
158 __le16 buffer_len; /* include 4-byte CRC */
164 struct atl1c_tpd_ext_desc {
170 /* rrs word 0 bit 0:31 */
171 #define RRS_RX_CSUM_MASK 0xFFFF
172 #define RRS_RX_CSUM_SHIFT 0
173 #define RRS_RX_RFD_CNT_MASK 0x000F
174 #define RRS_RX_RFD_CNT_SHIFT 16
175 #define RRS_RX_RFD_INDEX_MASK 0x0FFF
176 #define RRS_RX_RFD_INDEX_SHIFT 20
178 /* rrs flag bit 0:16 */
179 #define RRS_HEAD_LEN_MASK 0x00FF
180 #define RRS_HEAD_LEN_SHIFT 0
181 #define RRS_HDS_TYPE_MASK 0x0003
182 #define RRS_HDS_TYPE_SHIFT 8
183 #define RRS_CPU_NUM_MASK 0x0003
184 #define RRS_CPU_NUM_SHIFT 10
185 #define RRS_HASH_FLG_MASK 0x000F
186 #define RRS_HASH_FLG_SHIFT 12
188 #define RRS_HDS_TYPE_HEAD 1
189 #define RRS_HDS_TYPE_DATA 2
191 #define RRS_IS_NO_HDS_TYPE(flag) \
192 (((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK == 0)
194 #define RRS_IS_HDS_HEAD(flag) \
195 (((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK == \
198 #define RRS_IS_HDS_DATA(flag) \
199 (((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK == \
202 /* rrs word 3 bit 0:31 */
203 #define RRS_PKT_SIZE_MASK 0x3FFF
204 #define RRS_PKT_SIZE_SHIFT 0
205 #define RRS_ERR_L4_CSUM_MASK 0x0001
206 #define RRS_ERR_L4_CSUM_SHIFT 14
207 #define RRS_ERR_IP_CSUM_MASK 0x0001
208 #define RRS_ERR_IP_CSUM_SHIFT 15
209 #define RRS_VLAN_INS_MASK 0x0001
210 #define RRS_VLAN_INS_SHIFT 16
211 #define RRS_PROT_ID_MASK 0x0007
212 #define RRS_PROT_ID_SHIFT 17
213 #define RRS_RX_ERR_SUM_MASK 0x0001
214 #define RRS_RX_ERR_SUM_SHIFT 20
215 #define RRS_RX_ERR_CRC_MASK 0x0001
216 #define RRS_RX_ERR_CRC_SHIFT 21
217 #define RRS_RX_ERR_FAE_MASK 0x0001
218 #define RRS_RX_ERR_FAE_SHIFT 22
219 #define RRS_RX_ERR_TRUNC_MASK 0x0001
220 #define RRS_RX_ERR_TRUNC_SHIFT 23
221 #define RRS_RX_ERR_RUNC_MASK 0x0001
222 #define RRS_RX_ERR_RUNC_SHIFT 24
223 #define RRS_RX_ERR_ICMP_MASK 0x0001
224 #define RRS_RX_ERR_ICMP_SHIFT 25
225 #define RRS_PACKET_BCAST_MASK 0x0001
226 #define RRS_PACKET_BCAST_SHIFT 26
227 #define RRS_PACKET_MCAST_MASK 0x0001
228 #define RRS_PACKET_MCAST_SHIFT 27
229 #define RRS_PACKET_TYPE_MASK 0x0001
230 #define RRS_PACKET_TYPE_SHIFT 28
231 #define RRS_FIFO_FULL_MASK 0x0001
232 #define RRS_FIFO_FULL_SHIFT 29
233 #define RRS_802_3_LEN_ERR_MASK 0x0001
234 #define RRS_802_3_LEN_ERR_SHIFT 30
235 #define RRS_RXD_UPDATED_MASK 0x0001
236 #define RRS_RXD_UPDATED_SHIFT 31
238 #define RRS_ERR_L4_CSUM 0x00004000
239 #define RRS_ERR_IP_CSUM 0x00008000
240 #define RRS_VLAN_INS 0x00010000
241 #define RRS_RX_ERR_SUM 0x00100000
242 #define RRS_RX_ERR_CRC 0x00200000
243 #define RRS_802_3_LEN_ERR 0x40000000
244 #define RRS_RXD_UPDATED 0x80000000
246 #define RRS_PACKET_TYPE_802_3 1
247 #define RRS_PACKET_TYPE_ETH 0
248 #define RRS_PACKET_IS_ETH(word) \
249 (((word) >> RRS_PACKET_TYPE_SHIFT) & RRS_PACKET_TYPE_MASK == \
251 #define RRS_RXD_IS_VALID(word) \
252 ((((word) >> RRS_RXD_UPDATED_SHIFT) & RRS_RXD_UPDATED_MASK) == 1)
254 #define RRS_PACKET_PROT_IS_IPV4_ONLY(word) \
255 ((((word) >> RRS_PROT_ID_SHIFT) & RRS_PROT_ID_MASK) == 1)
256 #define RRS_PACKET_PROT_IS_IPV6_ONLY(word) \
257 ((((word) >> RRS_PROT_ID_SHIFT) & RRS_PROT_ID_MASK) == 6)
259 struct atl1c_recv_ret_status {
268 struct atl1c_rx_free_desc {
272 /* DMA Order Settings */
273 enum atl1c_dma_order {
274 atl1c_dma_ord_in = 1,
275 atl1c_dma_ord_enh = 2,
276 atl1c_dma_ord_out = 4
284 enum atl1c_mac_speed {
285 atl1c_mac_speed_0 = 0,
286 atl1c_mac_speed_10_100 = 1,
287 atl1c_mac_speed_1000 = 2
290 enum atl1c_dma_req_block {
291 atl1c_dma_req_128 = 0,
292 atl1c_dma_req_256 = 1,
293 atl1c_dma_req_512 = 2,
294 atl1c_dma_req_1024 = 3,
295 atl1c_dma_req_2048 = 4,
296 atl1c_dma_req_4096 = 5
299 enum atl1c_rss_mode {
300 atl1c_rss_mode_disable = 0,
301 atl1c_rss_sig_que = 1,
302 atl1c_rss_mul_que_sig_int = 2,
303 atl1c_rss_mul_que_mul_int = 4,
306 enum atl1c_rss_type {
307 atl1c_rss_disable = 0,
309 atl1c_rss_ipv4_tcp = 2,
311 atl1c_rss_ipv6_tcp = 8
314 enum atl1c_nic_type {
319 enum atl1c_trans_queue {
320 atl1c_trans_normal = 0,
324 struct atl1c_hw_stats {
326 unsigned long rx_ok; /* The number of good packet received. */
327 unsigned long rx_bcast; /* The number of good broadcast packet received. */
328 unsigned long rx_mcast; /* The number of good multicast packet received. */
329 unsigned long rx_pause; /* The number of Pause packet received. */
330 unsigned long rx_ctrl; /* The number of Control packet received other than Pause frame. */
331 unsigned long rx_fcs_err; /* The number of packets with bad FCS. */
332 unsigned long rx_len_err; /* The number of packets with mismatch of length field and actual size. */
333 unsigned long rx_byte_cnt; /* The number of bytes of good packet received. FCS is NOT included. */
334 unsigned long rx_runt; /* The number of packets received that are less than 64 byte long and with good FCS. */
335 unsigned long rx_frag; /* The number of packets received that are less than 64 byte long and with bad FCS. */
336 unsigned long rx_sz_64; /* The number of good and bad packets received that are 64 byte long. */
337 unsigned long rx_sz_65_127; /* The number of good and bad packets received that are between 65 and 127-byte long. */
338 unsigned long rx_sz_128_255; /* The number of good and bad packets received that are between 128 and 255-byte long. */
339 unsigned long rx_sz_256_511; /* The number of good and bad packets received that are between 256 and 511-byte long. */
340 unsigned long rx_sz_512_1023; /* The number of good and bad packets received that are between 512 and 1023-byte long. */
341 unsigned long rx_sz_1024_1518; /* The number of good and bad packets received that are between 1024 and 1518-byte long. */
342 unsigned long rx_sz_1519_max; /* The number of good and bad packets received that are between 1519-byte and MTU. */
343 unsigned long rx_sz_ov; /* The number of good and bad packets received that are more than MTU size truncated by Selene. */
344 unsigned long rx_rxf_ov; /* The number of frame dropped due to occurrence of RX FIFO overflow. */
345 unsigned long rx_rrd_ov; /* The number of frame dropped due to occurrence of RRD overflow. */
346 unsigned long rx_align_err; /* Alignment Error */
347 unsigned long rx_bcast_byte_cnt; /* The byte count of broadcast packet received, excluding FCS. */
348 unsigned long rx_mcast_byte_cnt; /* The byte count of multicast packet received, excluding FCS. */
349 unsigned long rx_err_addr; /* The number of packets dropped due to address filtering. */
352 unsigned long tx_ok; /* The number of good packet transmitted. */
353 unsigned long tx_bcast; /* The number of good broadcast packet transmitted. */
354 unsigned long tx_mcast; /* The number of good multicast packet transmitted. */
355 unsigned long tx_pause; /* The number of Pause packet transmitted. */
356 unsigned long tx_exc_defer; /* The number of packets transmitted with excessive deferral. */
357 unsigned long tx_ctrl; /* The number of packets transmitted is a control frame, excluding Pause frame. */
358 unsigned long tx_defer; /* The number of packets transmitted that is deferred. */
359 unsigned long tx_byte_cnt; /* The number of bytes of data transmitted. FCS is NOT included. */
360 unsigned long tx_sz_64; /* The number of good and bad packets transmitted that are 64 byte long. */
361 unsigned long tx_sz_65_127; /* The number of good and bad packets transmitted that are between 65 and 127-byte long. */
362 unsigned long tx_sz_128_255; /* The number of good and bad packets transmitted that are between 128 and 255-byte long. */
363 unsigned long tx_sz_256_511; /* The number of good and bad packets transmitted that are between 256 and 511-byte long. */
364 unsigned long tx_sz_512_1023; /* The number of good and bad packets transmitted that are between 512 and 1023-byte long. */
365 unsigned long tx_sz_1024_1518; /* The number of good and bad packets transmitted that are between 1024 and 1518-byte long. */
366 unsigned long tx_sz_1519_max; /* The number of good and bad packets transmitted that are between 1519-byte and MTU. */
367 unsigned long tx_1_col; /* The number of packets subsequently transmitted successfully with a single prior collision. */
368 unsigned long tx_2_col; /* The number of packets subsequently transmitted successfully with multiple prior collisions. */
369 unsigned long tx_late_col; /* The number of packets transmitted with late collisions. */
370 unsigned long tx_abort_col; /* The number of transmit packets aborted due to excessive collisions. */
371 unsigned long tx_underrun; /* The number of transmit packets aborted due to transmit FIFO underrun, or TRD FIFO underrun */
372 unsigned long tx_rd_eop; /* The number of times that read beyond the EOP into the next frame area when TRD was not written timely */
373 unsigned long tx_len_err; /* The number of transmit packets with length field does NOT match the actual frame size. */
374 unsigned long tx_trunc; /* The number of transmit packets truncated due to size exceeding MTU. */
375 unsigned long tx_bcast_byte; /* The byte count of broadcast packet transmitted, excluding FCS. */
376 unsigned long tx_mcast_byte; /* The byte count of multicast packet transmitted, excluding FCS. */
380 u8 __iomem *hw_addr; /* inner register address */
381 struct atl1c_adapter *adapter;
382 enum atl1c_nic_type nic_type;
383 enum atl1c_dma_order dma_order;
384 enum atl1c_dma_rcb rcb_value;
385 enum atl1c_dma_req_block dmar_block;
386 enum atl1c_dma_req_block dmaw_block;
391 u16 subsystem_vendor_id;
402 enum atl1c_mac_speed mac_speed;
406 #define MEDIA_TYPE_AUTO_SENSOR 0
407 #define MEDIA_TYPE_100M_FULL 1
408 #define MEDIA_TYPE_100M_HALF 2
409 #define MEDIA_TYPE_10M_FULL 3
410 #define MEDIA_TYPE_10M_HALF 4
412 u16 autoneg_advertised;
413 u16 mii_autoneg_adv_reg;
414 u16 mii_1000t_ctrl_reg;
416 u16 tx_imt; /* TX Interrupt Moderator timer ( 2us resolution) */
417 u16 rx_imt; /* RX Interrupt Moderator timer ( 2us resolution) */
418 u16 ict; /* Interrupt Clear timer (2us resolution) */
420 #define ATL1C_INTR_CLEAR_ON_READ 0x0001
421 #define ATL1C_INTR_MODRT_ENABLE 0x0002
422 #define ATL1C_CMB_ENABLE 0x0004
423 #define ATL1C_SMB_ENABLE 0x0010
424 #define ATL1C_TXQ_MODE_ENHANCE 0x0020
425 #define ATL1C_RX_IPV6_CHKSUM 0x0040
426 #define ATL1C_ASPM_L0S_SUPPORT 0x0080
427 #define ATL1C_ASPM_L1_SUPPORT 0x0100
428 #define ATL1C_ASPM_CTRL_MON 0x0200
429 #define ATL1C_HIB_DISABLE 0x0400
430 #define ATL1C_LINK_CAP_1000M 0x0800
431 #define ATL1C_FPGA_VERSION 0x8000
434 u16 cmb_rx_timer; /* 2us resolution */
438 u16 rrd_thresh; /* Threshold of number of RRD produced to trigger
441 u8 tpd_burst; /* Number of TPD to prefetch in cache-aligned burst. */
443 enum atl1c_rss_type rss_type;
444 enum atl1c_rss_mode rss_mode;
448 u8 mac_addr[ETH_ALEN];
449 u8 perm_mac_addr[ETH_ALEN];
457 * atl1c_ring_header represents a single, contiguous block of DMA space
458 * mapped for the three descriptor rings (tpd, rfd, rrd) and the two
459 * message blocks (cmb, smb) described below
461 struct atl1c_ring_header {
462 void *desc; /* virtual address */
463 dma_addr_t dma; /* physical address*/
464 unsigned int size; /* length in bytes */
468 * atl1c_buffer is wrapper around a pointer to a socket buffer
469 * so a DMA handle can be stored along with the skb
471 struct atl1c_buffer {
472 struct sk_buff *skb; /* socket buffer */
473 u16 length; /* rx buffer length */
474 u16 state; /* state of buffer */
475 #define ATL1_BUFFER_FREE 0
476 #define ATL1_BUFFER_BUSY 1
480 /* transimit packet descriptor (tpd) ring */
481 struct atl1c_tpd_ring {
482 void *desc; /* descriptor ring virtual address */
483 dma_addr_t dma; /* descriptor ring physical address */
484 u16 size; /* descriptor ring length in bytes */
485 u16 count; /* number of descriptors in the ring */
486 u16 next_to_use; /* this is protectd by adapter->tx_lock */
487 atomic_t next_to_clean;
488 struct atl1c_buffer *buffer_info;
491 /* receive free descriptor (rfd) ring */
492 struct atl1c_rfd_ring {
493 void *desc; /* descriptor ring virtual address */
494 dma_addr_t dma; /* descriptor ring physical address */
495 u16 size; /* descriptor ring length in bytes */
496 u16 count; /* number of descriptors in the ring */
499 struct atl1c_buffer *buffer_info;
502 /* receive return desciptor (rrd) ring */
503 struct atl1c_rrd_ring {
504 void *desc; /* descriptor ring virtual address */
505 dma_addr_t dma; /* descriptor ring physical address */
506 u16 size; /* descriptor ring length in bytes */
507 u16 count; /* number of descriptors in the ring */
522 /* board specific private data structure */
523 struct atl1c_adapter {
524 struct net_device *netdev;
525 struct pci_dev *pdev;
526 struct vlan_group *vlgrp;
527 struct napi_struct napi;
529 struct atl1c_hw_stats hw_stats;
530 struct net_device_stats net_stats;
531 struct mii_if_info mii; /* MII interface info */
535 #define __AT_TESTING 0x0001
536 #define __AT_RESETTING 0x0002
537 #define __AT_DOWN 0x0003
545 spinlock_t mdio_lock;
549 struct work_struct reset_task;
550 struct work_struct link_chg_task;
551 struct timer_list watchdog_timer;
552 struct timer_list phy_config_timer;
554 /* All Descriptor memory */
555 struct atl1c_ring_header ring_header;
556 struct atl1c_tpd_ring tpd_ring[AT_MAX_TRANSMIT_QUEUE];
557 struct atl1c_rfd_ring rfd_ring[AT_MAX_RECEIVE_QUEUE];
558 struct atl1c_rrd_ring rrd_ring[AT_MAX_RECEIVE_QUEUE];
559 struct atl1c_cmb cmb;
560 struct atl1c_smb smb;
562 u32 bd_number; /* board number;*/
565 #define AT_WRITE_REG(a, reg, value) ( \
566 writel((value), ((a)->hw_addr + reg)))
568 #define AT_WRITE_FLUSH(a) (\
571 #define AT_READ_REG(a, reg, pdata) do { \
572 if (unlikely((a)->hibernate)) { \
573 readl((a)->hw_addr + reg); \
574 *(u32 *)pdata = readl((a)->hw_addr + reg); \
576 *(u32 *)pdata = readl((a)->hw_addr + reg); \
580 #define AT_WRITE_REGB(a, reg, value) (\
581 writeb((value), ((a)->hw_addr + reg)))
583 #define AT_READ_REGB(a, reg) (\
584 readb((a)->hw_addr + reg))
586 #define AT_WRITE_REGW(a, reg, value) (\
587 writew((value), ((a)->hw_addr + reg)))
589 #define AT_READ_REGW(a, reg) (\
590 readw((a)->hw_addr + reg))
592 #define AT_WRITE_REG_ARRAY(a, reg, offset, value) ( \
593 writel((value), (((a)->hw_addr + reg) + ((offset) << 2))))
595 #define AT_READ_REG_ARRAY(a, reg, offset) ( \
596 readl(((a)->hw_addr + reg) + ((offset) << 2)))
598 extern char atl1c_driver_name[];
599 extern char atl1c_driver_version[];
601 extern int atl1c_up(struct atl1c_adapter *adapter);
602 extern void atl1c_down(struct atl1c_adapter *adapter);
603 extern void atl1c_reinit_locked(struct atl1c_adapter *adapter);
604 extern s32 atl1c_reset_hw(struct atl1c_hw *hw);
605 extern void atl1c_set_ethtool_ops(struct net_device *netdev);
606 #endif /* _ATL1C_H_ */