1 /*******************************************************************************
3 Intel PRO/1000 Linux driver
4 Copyright(c) 1999 - 2008 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
29 #include <linux/module.h>
30 #include <linux/types.h>
31 #include <linux/init.h>
32 #include <linux/pci.h>
33 #include <linux/vmalloc.h>
34 #include <linux/pagemap.h>
35 #include <linux/delay.h>
36 #include <linux/netdevice.h>
37 #include <linux/tcp.h>
38 #include <linux/ipv6.h>
39 #include <net/checksum.h>
40 #include <net/ip6_checksum.h>
41 #include <linux/mii.h>
42 #include <linux/ethtool.h>
43 #include <linux/if_vlan.h>
44 #include <linux/cpu.h>
45 #include <linux/smp.h>
49 #define DRV_VERSION "0.2.0"
50 char e1000e_driver_name
[] = "e1000e";
51 const char e1000e_driver_version
[] = DRV_VERSION
;
53 static const struct e1000_info
*e1000_info_tbl
[] = {
54 [board_82571
] = &e1000_82571_info
,
55 [board_82572
] = &e1000_82572_info
,
56 [board_82573
] = &e1000_82573_info
,
57 [board_80003es2lan
] = &e1000_es2_info
,
58 [board_ich8lan
] = &e1000_ich8_info
,
59 [board_ich9lan
] = &e1000_ich9_info
,
64 * e1000_get_hw_dev_name - return device name string
65 * used by hardware layer to print debugging information
67 char *e1000e_get_hw_dev_name(struct e1000_hw
*hw
)
69 return hw
->adapter
->netdev
->name
;
74 * e1000_desc_unused - calculate if we have unused descriptors
76 static int e1000_desc_unused(struct e1000_ring
*ring
)
78 if (ring
->next_to_clean
> ring
->next_to_use
)
79 return ring
->next_to_clean
- ring
->next_to_use
- 1;
81 return ring
->count
+ ring
->next_to_clean
- ring
->next_to_use
- 1;
85 * e1000_receive_skb - helper function to handle Rx indications
86 * @adapter: board private structure
87 * @status: descriptor status field as written by hardware
88 * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
89 * @skb: pointer to sk_buff to be indicated to stack
91 static void e1000_receive_skb(struct e1000_adapter
*adapter
,
92 struct net_device
*netdev
,
94 u8 status
, __le16 vlan
)
96 skb
->protocol
= eth_type_trans(skb
, netdev
);
98 if (adapter
->vlgrp
&& (status
& E1000_RXD_STAT_VP
))
99 vlan_hwaccel_receive_skb(skb
, adapter
->vlgrp
,
101 E1000_RXD_SPC_VLAN_MASK
);
103 netif_receive_skb(skb
);
105 netdev
->last_rx
= jiffies
;
109 * e1000_rx_checksum - Receive Checksum Offload for 82543
110 * @adapter: board private structure
111 * @status_err: receive descriptor status and error fields
112 * @csum: receive descriptor csum field
113 * @sk_buff: socket buffer with received data
115 static void e1000_rx_checksum(struct e1000_adapter
*adapter
, u32 status_err
,
116 u32 csum
, struct sk_buff
*skb
)
118 u16 status
= (u16
)status_err
;
119 u8 errors
= (u8
)(status_err
>> 24);
120 skb
->ip_summed
= CHECKSUM_NONE
;
122 /* Ignore Checksum bit is set */
123 if (status
& E1000_RXD_STAT_IXSM
)
125 /* TCP/UDP checksum error bit is set */
126 if (errors
& E1000_RXD_ERR_TCPE
) {
127 /* let the stack verify checksum errors */
128 adapter
->hw_csum_err
++;
132 /* TCP/UDP Checksum has not been calculated */
133 if (!(status
& (E1000_RXD_STAT_TCPCS
| E1000_RXD_STAT_UDPCS
)))
136 /* It must be a TCP or UDP packet with a valid checksum */
137 if (status
& E1000_RXD_STAT_TCPCS
) {
138 /* TCP checksum is good */
139 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
142 * IP fragment with UDP payload
143 * Hardware complements the payload checksum, so we undo it
144 * and then put the value in host order for further stack use.
146 __sum16 sum
= (__force __sum16
)htons(csum
);
147 skb
->csum
= csum_unfold(~sum
);
148 skb
->ip_summed
= CHECKSUM_COMPLETE
;
150 adapter
->hw_csum_good
++;
154 * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended
155 * @adapter: address of board private structure
157 static void e1000_alloc_rx_buffers(struct e1000_adapter
*adapter
,
160 struct net_device
*netdev
= adapter
->netdev
;
161 struct pci_dev
*pdev
= adapter
->pdev
;
162 struct e1000_ring
*rx_ring
= adapter
->rx_ring
;
163 struct e1000_rx_desc
*rx_desc
;
164 struct e1000_buffer
*buffer_info
;
167 unsigned int bufsz
= adapter
->rx_buffer_len
+ NET_IP_ALIGN
;
169 i
= rx_ring
->next_to_use
;
170 buffer_info
= &rx_ring
->buffer_info
[i
];
172 while (cleaned_count
--) {
173 skb
= buffer_info
->skb
;
179 skb
= netdev_alloc_skb(netdev
, bufsz
);
181 /* Better luck next round */
182 adapter
->alloc_rx_buff_failed
++;
187 * Make buffer alignment 2 beyond a 16 byte boundary
188 * this will result in a 16 byte aligned IP header after
189 * the 14 byte MAC header is removed
191 skb_reserve(skb
, NET_IP_ALIGN
);
193 buffer_info
->skb
= skb
;
195 buffer_info
->dma
= pci_map_single(pdev
, skb
->data
,
196 adapter
->rx_buffer_len
,
198 if (pci_dma_mapping_error(buffer_info
->dma
)) {
199 dev_err(&pdev
->dev
, "RX DMA map failed\n");
200 adapter
->rx_dma_failed
++;
204 rx_desc
= E1000_RX_DESC(*rx_ring
, i
);
205 rx_desc
->buffer_addr
= cpu_to_le64(buffer_info
->dma
);
208 if (i
== rx_ring
->count
)
210 buffer_info
= &rx_ring
->buffer_info
[i
];
213 if (rx_ring
->next_to_use
!= i
) {
214 rx_ring
->next_to_use
= i
;
216 i
= (rx_ring
->count
- 1);
219 * Force memory writes to complete before letting h/w
220 * know there are new descriptors to fetch. (Only
221 * applicable for weak-ordered memory model archs,
225 writel(i
, adapter
->hw
.hw_addr
+ rx_ring
->tail
);
230 * e1000_alloc_rx_buffers_ps - Replace used receive buffers; packet split
231 * @adapter: address of board private structure
233 static void e1000_alloc_rx_buffers_ps(struct e1000_adapter
*adapter
,
236 struct net_device
*netdev
= adapter
->netdev
;
237 struct pci_dev
*pdev
= adapter
->pdev
;
238 union e1000_rx_desc_packet_split
*rx_desc
;
239 struct e1000_ring
*rx_ring
= adapter
->rx_ring
;
240 struct e1000_buffer
*buffer_info
;
241 struct e1000_ps_page
*ps_page
;
245 i
= rx_ring
->next_to_use
;
246 buffer_info
= &rx_ring
->buffer_info
[i
];
248 while (cleaned_count
--) {
249 rx_desc
= E1000_RX_DESC_PS(*rx_ring
, i
);
251 for (j
= 0; j
< PS_PAGE_BUFFERS
; j
++) {
252 ps_page
= &buffer_info
->ps_pages
[j
];
253 if (j
>= adapter
->rx_ps_pages
) {
254 /* all unused desc entries get hw null ptr */
255 rx_desc
->read
.buffer_addr
[j
+1] = ~cpu_to_le64(0);
258 if (!ps_page
->page
) {
259 ps_page
->page
= alloc_page(GFP_ATOMIC
);
260 if (!ps_page
->page
) {
261 adapter
->alloc_rx_buff_failed
++;
264 ps_page
->dma
= pci_map_page(pdev
,
268 if (pci_dma_mapping_error(ps_page
->dma
)) {
269 dev_err(&adapter
->pdev
->dev
,
270 "RX DMA page map failed\n");
271 adapter
->rx_dma_failed
++;
276 * Refresh the desc even if buffer_addrs
277 * didn't change because each write-back
280 rx_desc
->read
.buffer_addr
[j
+1] =
281 cpu_to_le64(ps_page
->dma
);
284 skb
= netdev_alloc_skb(netdev
,
285 adapter
->rx_ps_bsize0
+ NET_IP_ALIGN
);
288 adapter
->alloc_rx_buff_failed
++;
293 * Make buffer alignment 2 beyond a 16 byte boundary
294 * this will result in a 16 byte aligned IP header after
295 * the 14 byte MAC header is removed
297 skb_reserve(skb
, NET_IP_ALIGN
);
299 buffer_info
->skb
= skb
;
300 buffer_info
->dma
= pci_map_single(pdev
, skb
->data
,
301 adapter
->rx_ps_bsize0
,
303 if (pci_dma_mapping_error(buffer_info
->dma
)) {
304 dev_err(&pdev
->dev
, "RX DMA map failed\n");
305 adapter
->rx_dma_failed
++;
307 dev_kfree_skb_any(skb
);
308 buffer_info
->skb
= NULL
;
312 rx_desc
->read
.buffer_addr
[0] = cpu_to_le64(buffer_info
->dma
);
315 if (i
== rx_ring
->count
)
317 buffer_info
= &rx_ring
->buffer_info
[i
];
321 if (rx_ring
->next_to_use
!= i
) {
322 rx_ring
->next_to_use
= i
;
325 i
= (rx_ring
->count
- 1);
328 * Force memory writes to complete before letting h/w
329 * know there are new descriptors to fetch. (Only
330 * applicable for weak-ordered memory model archs,
335 * Hardware increments by 16 bytes, but packet split
336 * descriptors are 32 bytes...so we increment tail
339 writel(i
<<1, adapter
->hw
.hw_addr
+ rx_ring
->tail
);
344 * e1000_clean_rx_irq - Send received data up the network stack; legacy
345 * @adapter: board private structure
347 * the return value indicates whether actual cleaning was done, there
348 * is no guarantee that everything was cleaned
350 static bool e1000_clean_rx_irq(struct e1000_adapter
*adapter
,
351 int *work_done
, int work_to_do
)
353 struct net_device
*netdev
= adapter
->netdev
;
354 struct pci_dev
*pdev
= adapter
->pdev
;
355 struct e1000_ring
*rx_ring
= adapter
->rx_ring
;
356 struct e1000_rx_desc
*rx_desc
, *next_rxd
;
357 struct e1000_buffer
*buffer_info
, *next_buffer
;
360 int cleaned_count
= 0;
362 unsigned int total_rx_bytes
= 0, total_rx_packets
= 0;
364 i
= rx_ring
->next_to_clean
;
365 rx_desc
= E1000_RX_DESC(*rx_ring
, i
);
366 buffer_info
= &rx_ring
->buffer_info
[i
];
368 while (rx_desc
->status
& E1000_RXD_STAT_DD
) {
372 if (*work_done
>= work_to_do
)
376 status
= rx_desc
->status
;
377 skb
= buffer_info
->skb
;
378 buffer_info
->skb
= NULL
;
380 prefetch(skb
->data
- NET_IP_ALIGN
);
383 if (i
== rx_ring
->count
)
385 next_rxd
= E1000_RX_DESC(*rx_ring
, i
);
388 next_buffer
= &rx_ring
->buffer_info
[i
];
392 pci_unmap_single(pdev
,
394 adapter
->rx_buffer_len
,
396 buffer_info
->dma
= 0;
398 length
= le16_to_cpu(rx_desc
->length
);
400 /* !EOP means multiple descriptors were used to store a single
401 * packet, also make sure the frame isn't just CRC only */
402 if (!(status
& E1000_RXD_STAT_EOP
) || (length
<= 4)) {
403 /* All receives must fit into a single buffer */
404 ndev_dbg(netdev
, "%s: Receive packet consumed "
405 "multiple buffers\n", netdev
->name
);
407 buffer_info
->skb
= skb
;
411 if (rx_desc
->errors
& E1000_RXD_ERR_FRAME_ERR_MASK
) {
413 buffer_info
->skb
= skb
;
417 total_rx_bytes
+= length
;
421 * code added for copybreak, this should improve
422 * performance for small packets with large amounts
423 * of reassembly being done in the stack
425 if (length
< copybreak
) {
426 struct sk_buff
*new_skb
=
427 netdev_alloc_skb(netdev
, length
+ NET_IP_ALIGN
);
429 skb_reserve(new_skb
, NET_IP_ALIGN
);
430 memcpy(new_skb
->data
- NET_IP_ALIGN
,
431 skb
->data
- NET_IP_ALIGN
,
432 length
+ NET_IP_ALIGN
);
433 /* save the skb in buffer_info as good */
434 buffer_info
->skb
= skb
;
437 /* else just continue with the old one */
439 /* end copybreak code */
440 skb_put(skb
, length
);
442 /* Receive Checksum Offload */
443 e1000_rx_checksum(adapter
,
445 ((u32
)(rx_desc
->errors
) << 24),
446 le16_to_cpu(rx_desc
->csum
), skb
);
448 e1000_receive_skb(adapter
, netdev
, skb
,status
,rx_desc
->special
);
453 /* return some buffers to hardware, one at a time is too slow */
454 if (cleaned_count
>= E1000_RX_BUFFER_WRITE
) {
455 adapter
->alloc_rx_buf(adapter
, cleaned_count
);
459 /* use prefetched values */
461 buffer_info
= next_buffer
;
463 rx_ring
->next_to_clean
= i
;
465 cleaned_count
= e1000_desc_unused(rx_ring
);
467 adapter
->alloc_rx_buf(adapter
, cleaned_count
);
469 adapter
->total_rx_packets
+= total_rx_packets
;
470 adapter
->total_rx_bytes
+= total_rx_bytes
;
471 adapter
->net_stats
.rx_packets
+= total_rx_packets
;
472 adapter
->net_stats
.rx_bytes
+= total_rx_bytes
;
476 static void e1000_put_txbuf(struct e1000_adapter
*adapter
,
477 struct e1000_buffer
*buffer_info
)
479 if (buffer_info
->dma
) {
480 pci_unmap_page(adapter
->pdev
, buffer_info
->dma
,
481 buffer_info
->length
, PCI_DMA_TODEVICE
);
482 buffer_info
->dma
= 0;
484 if (buffer_info
->skb
) {
485 dev_kfree_skb_any(buffer_info
->skb
);
486 buffer_info
->skb
= NULL
;
490 static void e1000_print_tx_hang(struct e1000_adapter
*adapter
)
492 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
493 unsigned int i
= tx_ring
->next_to_clean
;
494 unsigned int eop
= tx_ring
->buffer_info
[i
].next_to_watch
;
495 struct e1000_tx_desc
*eop_desc
= E1000_TX_DESC(*tx_ring
, eop
);
496 struct net_device
*netdev
= adapter
->netdev
;
498 /* detected Tx unit hang */
500 "Detected Tx Unit Hang:\n"
503 " next_to_use <%x>\n"
504 " next_to_clean <%x>\n"
505 "buffer_info[next_to_clean]:\n"
506 " time_stamp <%lx>\n"
507 " next_to_watch <%x>\n"
509 " next_to_watch.status <%x>\n",
510 readl(adapter
->hw
.hw_addr
+ tx_ring
->head
),
511 readl(adapter
->hw
.hw_addr
+ tx_ring
->tail
),
512 tx_ring
->next_to_use
,
513 tx_ring
->next_to_clean
,
514 tx_ring
->buffer_info
[eop
].time_stamp
,
517 eop_desc
->upper
.fields
.status
);
521 * e1000_clean_tx_irq - Reclaim resources after transmit completes
522 * @adapter: board private structure
524 * the return value indicates whether actual cleaning was done, there
525 * is no guarantee that everything was cleaned
527 static bool e1000_clean_tx_irq(struct e1000_adapter
*adapter
)
529 struct net_device
*netdev
= adapter
->netdev
;
530 struct e1000_hw
*hw
= &adapter
->hw
;
531 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
532 struct e1000_tx_desc
*tx_desc
, *eop_desc
;
533 struct e1000_buffer
*buffer_info
;
535 unsigned int count
= 0;
537 unsigned int total_tx_bytes
= 0, total_tx_packets
= 0;
539 i
= tx_ring
->next_to_clean
;
540 eop
= tx_ring
->buffer_info
[i
].next_to_watch
;
541 eop_desc
= E1000_TX_DESC(*tx_ring
, eop
);
543 while (eop_desc
->upper
.data
& cpu_to_le32(E1000_TXD_STAT_DD
)) {
544 for (cleaned
= 0; !cleaned
; ) {
545 tx_desc
= E1000_TX_DESC(*tx_ring
, i
);
546 buffer_info
= &tx_ring
->buffer_info
[i
];
547 cleaned
= (i
== eop
);
550 struct sk_buff
*skb
= buffer_info
->skb
;
551 unsigned int segs
, bytecount
;
552 segs
= skb_shinfo(skb
)->gso_segs
?: 1;
553 /* multiply data chunks by size of headers */
554 bytecount
= ((segs
- 1) * skb_headlen(skb
)) +
556 total_tx_packets
+= segs
;
557 total_tx_bytes
+= bytecount
;
560 e1000_put_txbuf(adapter
, buffer_info
);
561 tx_desc
->upper
.data
= 0;
564 if (i
== tx_ring
->count
)
568 eop
= tx_ring
->buffer_info
[i
].next_to_watch
;
569 eop_desc
= E1000_TX_DESC(*tx_ring
, eop
);
570 #define E1000_TX_WEIGHT 64
571 /* weight of a sort for tx, to avoid endless transmit cleanup */
572 if (count
++ == E1000_TX_WEIGHT
)
576 tx_ring
->next_to_clean
= i
;
578 #define TX_WAKE_THRESHOLD 32
579 if (cleaned
&& netif_carrier_ok(netdev
) &&
580 e1000_desc_unused(tx_ring
) >= TX_WAKE_THRESHOLD
) {
581 /* Make sure that anybody stopping the queue after this
582 * sees the new next_to_clean.
586 if (netif_queue_stopped(netdev
) &&
587 !(test_bit(__E1000_DOWN
, &adapter
->state
))) {
588 netif_wake_queue(netdev
);
589 ++adapter
->restart_queue
;
593 if (adapter
->detect_tx_hung
) {
595 * Detect a transmit hang in hardware, this serializes the
596 * check with the clearing of time_stamp and movement of i
598 adapter
->detect_tx_hung
= 0;
599 if (tx_ring
->buffer_info
[eop
].dma
&&
600 time_after(jiffies
, tx_ring
->buffer_info
[eop
].time_stamp
601 + (adapter
->tx_timeout_factor
* HZ
))
602 && !(er32(STATUS
) & E1000_STATUS_TXOFF
)) {
603 e1000_print_tx_hang(adapter
);
604 netif_stop_queue(netdev
);
607 adapter
->total_tx_bytes
+= total_tx_bytes
;
608 adapter
->total_tx_packets
+= total_tx_packets
;
609 adapter
->net_stats
.tx_packets
+= total_tx_packets
;
610 adapter
->net_stats
.tx_bytes
+= total_tx_bytes
;
615 * e1000_clean_rx_irq_ps - Send received data up the network stack; packet split
616 * @adapter: board private structure
618 * the return value indicates whether actual cleaning was done, there
619 * is no guarantee that everything was cleaned
621 static bool e1000_clean_rx_irq_ps(struct e1000_adapter
*adapter
,
622 int *work_done
, int work_to_do
)
624 union e1000_rx_desc_packet_split
*rx_desc
, *next_rxd
;
625 struct net_device
*netdev
= adapter
->netdev
;
626 struct pci_dev
*pdev
= adapter
->pdev
;
627 struct e1000_ring
*rx_ring
= adapter
->rx_ring
;
628 struct e1000_buffer
*buffer_info
, *next_buffer
;
629 struct e1000_ps_page
*ps_page
;
633 int cleaned_count
= 0;
635 unsigned int total_rx_bytes
= 0, total_rx_packets
= 0;
637 i
= rx_ring
->next_to_clean
;
638 rx_desc
= E1000_RX_DESC_PS(*rx_ring
, i
);
639 staterr
= le32_to_cpu(rx_desc
->wb
.middle
.status_error
);
640 buffer_info
= &rx_ring
->buffer_info
[i
];
642 while (staterr
& E1000_RXD_STAT_DD
) {
643 if (*work_done
>= work_to_do
)
646 skb
= buffer_info
->skb
;
648 /* in the packet split case this is header only */
649 prefetch(skb
->data
- NET_IP_ALIGN
);
652 if (i
== rx_ring
->count
)
654 next_rxd
= E1000_RX_DESC_PS(*rx_ring
, i
);
657 next_buffer
= &rx_ring
->buffer_info
[i
];
661 pci_unmap_single(pdev
, buffer_info
->dma
,
662 adapter
->rx_ps_bsize0
,
664 buffer_info
->dma
= 0;
666 if (!(staterr
& E1000_RXD_STAT_EOP
)) {
667 ndev_dbg(netdev
, "%s: Packet Split buffers didn't pick "
668 "up the full packet\n", netdev
->name
);
669 dev_kfree_skb_irq(skb
);
673 if (staterr
& E1000_RXDEXT_ERR_FRAME_ERR_MASK
) {
674 dev_kfree_skb_irq(skb
);
678 length
= le16_to_cpu(rx_desc
->wb
.middle
.length0
);
681 ndev_dbg(netdev
, "%s: Last part of the packet spanning"
682 " multiple descriptors\n", netdev
->name
);
683 dev_kfree_skb_irq(skb
);
688 skb_put(skb
, length
);
692 * this looks ugly, but it seems compiler issues make it
693 * more efficient than reusing j
695 int l1
= le16_to_cpu(rx_desc
->wb
.upper
.length
[0]);
698 * page alloc/put takes too long and effects small packet
699 * throughput, so unsplit small packets and save the alloc/put
700 * only valid in softirq (napi) context to call kmap_*
702 if (l1
&& (l1
<= copybreak
) &&
703 ((length
+ l1
) <= adapter
->rx_ps_bsize0
)) {
706 ps_page
= &buffer_info
->ps_pages
[0];
709 * there is no documentation about how to call
710 * kmap_atomic, so we can't hold the mapping
713 pci_dma_sync_single_for_cpu(pdev
, ps_page
->dma
,
714 PAGE_SIZE
, PCI_DMA_FROMDEVICE
);
715 vaddr
= kmap_atomic(ps_page
->page
, KM_SKB_DATA_SOFTIRQ
);
716 memcpy(skb_tail_pointer(skb
), vaddr
, l1
);
717 kunmap_atomic(vaddr
, KM_SKB_DATA_SOFTIRQ
);
718 pci_dma_sync_single_for_device(pdev
, ps_page
->dma
,
719 PAGE_SIZE
, PCI_DMA_FROMDEVICE
);
726 for (j
= 0; j
< PS_PAGE_BUFFERS
; j
++) {
727 length
= le16_to_cpu(rx_desc
->wb
.upper
.length
[j
]);
731 ps_page
= &buffer_info
->ps_pages
[j
];
732 pci_unmap_page(pdev
, ps_page
->dma
, PAGE_SIZE
,
735 skb_fill_page_desc(skb
, j
, ps_page
->page
, 0, length
);
736 ps_page
->page
= NULL
;
738 skb
->data_len
+= length
;
739 skb
->truesize
+= length
;
743 total_rx_bytes
+= skb
->len
;
746 e1000_rx_checksum(adapter
, staterr
, le16_to_cpu(
747 rx_desc
->wb
.lower
.hi_dword
.csum_ip
.csum
), skb
);
749 if (rx_desc
->wb
.upper
.header_status
&
750 cpu_to_le16(E1000_RXDPS_HDRSTAT_HDRSP
))
751 adapter
->rx_hdr_split
++;
753 e1000_receive_skb(adapter
, netdev
, skb
,
754 staterr
, rx_desc
->wb
.middle
.vlan
);
757 rx_desc
->wb
.middle
.status_error
&= cpu_to_le32(~0xFF);
758 buffer_info
->skb
= NULL
;
760 /* return some buffers to hardware, one at a time is too slow */
761 if (cleaned_count
>= E1000_RX_BUFFER_WRITE
) {
762 adapter
->alloc_rx_buf(adapter
, cleaned_count
);
766 /* use prefetched values */
768 buffer_info
= next_buffer
;
770 staterr
= le32_to_cpu(rx_desc
->wb
.middle
.status_error
);
772 rx_ring
->next_to_clean
= i
;
774 cleaned_count
= e1000_desc_unused(rx_ring
);
776 adapter
->alloc_rx_buf(adapter
, cleaned_count
);
778 adapter
->total_rx_packets
+= total_rx_packets
;
779 adapter
->total_rx_bytes
+= total_rx_bytes
;
780 adapter
->net_stats
.rx_packets
+= total_rx_packets
;
781 adapter
->net_stats
.rx_bytes
+= total_rx_bytes
;
786 * e1000_clean_rx_ring - Free Rx Buffers per Queue
787 * @adapter: board private structure
789 static void e1000_clean_rx_ring(struct e1000_adapter
*adapter
)
791 struct e1000_ring
*rx_ring
= adapter
->rx_ring
;
792 struct e1000_buffer
*buffer_info
;
793 struct e1000_ps_page
*ps_page
;
794 struct pci_dev
*pdev
= adapter
->pdev
;
797 /* Free all the Rx ring sk_buffs */
798 for (i
= 0; i
< rx_ring
->count
; i
++) {
799 buffer_info
= &rx_ring
->buffer_info
[i
];
800 if (buffer_info
->dma
) {
801 if (adapter
->clean_rx
== e1000_clean_rx_irq
)
802 pci_unmap_single(pdev
, buffer_info
->dma
,
803 adapter
->rx_buffer_len
,
805 else if (adapter
->clean_rx
== e1000_clean_rx_irq_ps
)
806 pci_unmap_single(pdev
, buffer_info
->dma
,
807 adapter
->rx_ps_bsize0
,
809 buffer_info
->dma
= 0;
812 if (buffer_info
->skb
) {
813 dev_kfree_skb(buffer_info
->skb
);
814 buffer_info
->skb
= NULL
;
817 for (j
= 0; j
< PS_PAGE_BUFFERS
; j
++) {
818 ps_page
= &buffer_info
->ps_pages
[j
];
821 pci_unmap_page(pdev
, ps_page
->dma
, PAGE_SIZE
,
824 put_page(ps_page
->page
);
825 ps_page
->page
= NULL
;
829 /* there also may be some cached data from a chained receive */
830 if (rx_ring
->rx_skb_top
) {
831 dev_kfree_skb(rx_ring
->rx_skb_top
);
832 rx_ring
->rx_skb_top
= NULL
;
835 /* Zero out the descriptor ring */
836 memset(rx_ring
->desc
, 0, rx_ring
->size
);
838 rx_ring
->next_to_clean
= 0;
839 rx_ring
->next_to_use
= 0;
841 writel(0, adapter
->hw
.hw_addr
+ rx_ring
->head
);
842 writel(0, adapter
->hw
.hw_addr
+ rx_ring
->tail
);
846 * e1000_intr_msi - Interrupt Handler
847 * @irq: interrupt number
848 * @data: pointer to a network interface device structure
850 static irqreturn_t
e1000_intr_msi(int irq
, void *data
)
852 struct net_device
*netdev
= data
;
853 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
854 struct e1000_hw
*hw
= &adapter
->hw
;
858 * read ICR disables interrupts using IAM
861 if (icr
& (E1000_ICR_RXSEQ
| E1000_ICR_LSC
)) {
862 hw
->mac
.get_link_status
= 1;
864 * ICH8 workaround-- Call gig speed drop workaround on cable
865 * disconnect (LSC) before accessing any PHY registers
867 if ((adapter
->flags
& FLAG_LSC_GIG_SPEED_DROP
) &&
868 (!(er32(STATUS
) & E1000_STATUS_LU
)))
869 e1000e_gig_downshift_workaround_ich8lan(hw
);
872 * 80003ES2LAN workaround-- For packet buffer work-around on
873 * link down event; disable receives here in the ISR and reset
874 * adapter in watchdog
876 if (netif_carrier_ok(netdev
) &&
877 adapter
->flags
& FLAG_RX_NEEDS_RESTART
) {
878 /* disable receives */
879 u32 rctl
= er32(RCTL
);
880 ew32(RCTL
, rctl
& ~E1000_RCTL_EN
);
882 /* guard against interrupt when we're going down */
883 if (!test_bit(__E1000_DOWN
, &adapter
->state
))
884 mod_timer(&adapter
->watchdog_timer
, jiffies
+ 1);
887 if (netif_rx_schedule_prep(netdev
, &adapter
->napi
)) {
888 adapter
->total_tx_bytes
= 0;
889 adapter
->total_tx_packets
= 0;
890 adapter
->total_rx_bytes
= 0;
891 adapter
->total_rx_packets
= 0;
892 __netif_rx_schedule(netdev
, &adapter
->napi
);
899 * e1000_intr - Interrupt Handler
900 * @irq: interrupt number
901 * @data: pointer to a network interface device structure
903 static irqreturn_t
e1000_intr(int irq
, void *data
)
905 struct net_device
*netdev
= data
;
906 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
907 struct e1000_hw
*hw
= &adapter
->hw
;
909 u32 rctl
, icr
= er32(ICR
);
911 return IRQ_NONE
; /* Not our interrupt */
914 * IMS will not auto-mask if INT_ASSERTED is not set, and if it is
915 * not set, then the adapter didn't send an interrupt
917 if (!(icr
& E1000_ICR_INT_ASSERTED
))
921 * Interrupt Auto-Mask...upon reading ICR,
922 * interrupts are masked. No need for the
926 if (icr
& (E1000_ICR_RXSEQ
| E1000_ICR_LSC
)) {
927 hw
->mac
.get_link_status
= 1;
929 * ICH8 workaround-- Call gig speed drop workaround on cable
930 * disconnect (LSC) before accessing any PHY registers
932 if ((adapter
->flags
& FLAG_LSC_GIG_SPEED_DROP
) &&
933 (!(er32(STATUS
) & E1000_STATUS_LU
)))
934 e1000e_gig_downshift_workaround_ich8lan(hw
);
937 * 80003ES2LAN workaround--
938 * For packet buffer work-around on link down event;
939 * disable receives here in the ISR and
940 * reset adapter in watchdog
942 if (netif_carrier_ok(netdev
) &&
943 (adapter
->flags
& FLAG_RX_NEEDS_RESTART
)) {
944 /* disable receives */
946 ew32(RCTL
, rctl
& ~E1000_RCTL_EN
);
948 /* guard against interrupt when we're going down */
949 if (!test_bit(__E1000_DOWN
, &adapter
->state
))
950 mod_timer(&adapter
->watchdog_timer
, jiffies
+ 1);
953 if (netif_rx_schedule_prep(netdev
, &adapter
->napi
)) {
954 adapter
->total_tx_bytes
= 0;
955 adapter
->total_tx_packets
= 0;
956 adapter
->total_rx_bytes
= 0;
957 adapter
->total_rx_packets
= 0;
958 __netif_rx_schedule(netdev
, &adapter
->napi
);
964 static int e1000_request_irq(struct e1000_adapter
*adapter
)
966 struct net_device
*netdev
= adapter
->netdev
;
967 irq_handler_t handler
= e1000_intr
;
968 int irq_flags
= IRQF_SHARED
;
971 if (!pci_enable_msi(adapter
->pdev
)) {
972 adapter
->flags
|= FLAG_MSI_ENABLED
;
973 handler
= e1000_intr_msi
;
977 err
= request_irq(adapter
->pdev
->irq
, handler
, irq_flags
, netdev
->name
,
981 "Unable to allocate %s interrupt (return: %d)\n",
982 adapter
->flags
& FLAG_MSI_ENABLED
? "MSI":"INTx",
984 if (adapter
->flags
& FLAG_MSI_ENABLED
)
985 pci_disable_msi(adapter
->pdev
);
991 static void e1000_free_irq(struct e1000_adapter
*adapter
)
993 struct net_device
*netdev
= adapter
->netdev
;
995 free_irq(adapter
->pdev
->irq
, netdev
);
996 if (adapter
->flags
& FLAG_MSI_ENABLED
) {
997 pci_disable_msi(adapter
->pdev
);
998 adapter
->flags
&= ~FLAG_MSI_ENABLED
;
1003 * e1000_irq_disable - Mask off interrupt generation on the NIC
1005 static void e1000_irq_disable(struct e1000_adapter
*adapter
)
1007 struct e1000_hw
*hw
= &adapter
->hw
;
1011 synchronize_irq(adapter
->pdev
->irq
);
1015 * e1000_irq_enable - Enable default interrupt generation settings
1017 static void e1000_irq_enable(struct e1000_adapter
*adapter
)
1019 struct e1000_hw
*hw
= &adapter
->hw
;
1021 ew32(IMS
, IMS_ENABLE_MASK
);
1026 * e1000_get_hw_control - get control of the h/w from f/w
1027 * @adapter: address of board private structure
1029 * e1000_get_hw_control sets {CTRL_EXT|SWSM}:DRV_LOAD bit.
1030 * For ASF and Pass Through versions of f/w this means that
1031 * the driver is loaded. For AMT version (only with 82573)
1032 * of the f/w this means that the network i/f is open.
1034 static void e1000_get_hw_control(struct e1000_adapter
*adapter
)
1036 struct e1000_hw
*hw
= &adapter
->hw
;
1040 /* Let firmware know the driver has taken over */
1041 if (adapter
->flags
& FLAG_HAS_SWSM_ON_LOAD
) {
1043 ew32(SWSM
, swsm
| E1000_SWSM_DRV_LOAD
);
1044 } else if (adapter
->flags
& FLAG_HAS_CTRLEXT_ON_LOAD
) {
1045 ctrl_ext
= er32(CTRL_EXT
);
1046 ew32(CTRL_EXT
, ctrl_ext
| E1000_CTRL_EXT_DRV_LOAD
);
1051 * e1000_release_hw_control - release control of the h/w to f/w
1052 * @adapter: address of board private structure
1054 * e1000_release_hw_control resets {CTRL_EXT|SWSM}:DRV_LOAD bit.
1055 * For ASF and Pass Through versions of f/w this means that the
1056 * driver is no longer loaded. For AMT version (only with 82573) i
1057 * of the f/w this means that the network i/f is closed.
1060 static void e1000_release_hw_control(struct e1000_adapter
*adapter
)
1062 struct e1000_hw
*hw
= &adapter
->hw
;
1066 /* Let firmware taken over control of h/w */
1067 if (adapter
->flags
& FLAG_HAS_SWSM_ON_LOAD
) {
1069 ew32(SWSM
, swsm
& ~E1000_SWSM_DRV_LOAD
);
1070 } else if (adapter
->flags
& FLAG_HAS_CTRLEXT_ON_LOAD
) {
1071 ctrl_ext
= er32(CTRL_EXT
);
1072 ew32(CTRL_EXT
, ctrl_ext
& ~E1000_CTRL_EXT_DRV_LOAD
);
1077 * @e1000_alloc_ring - allocate memory for a ring structure
1079 static int e1000_alloc_ring_dma(struct e1000_adapter
*adapter
,
1080 struct e1000_ring
*ring
)
1082 struct pci_dev
*pdev
= adapter
->pdev
;
1084 ring
->desc
= dma_alloc_coherent(&pdev
->dev
, ring
->size
, &ring
->dma
,
1093 * e1000e_setup_tx_resources - allocate Tx resources (Descriptors)
1094 * @adapter: board private structure
1096 * Return 0 on success, negative on failure
1098 int e1000e_setup_tx_resources(struct e1000_adapter
*adapter
)
1100 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
1101 int err
= -ENOMEM
, size
;
1103 size
= sizeof(struct e1000_buffer
) * tx_ring
->count
;
1104 tx_ring
->buffer_info
= vmalloc(size
);
1105 if (!tx_ring
->buffer_info
)
1107 memset(tx_ring
->buffer_info
, 0, size
);
1109 /* round up to nearest 4K */
1110 tx_ring
->size
= tx_ring
->count
* sizeof(struct e1000_tx_desc
);
1111 tx_ring
->size
= ALIGN(tx_ring
->size
, 4096);
1113 err
= e1000_alloc_ring_dma(adapter
, tx_ring
);
1117 tx_ring
->next_to_use
= 0;
1118 tx_ring
->next_to_clean
= 0;
1119 spin_lock_init(&adapter
->tx_queue_lock
);
1123 vfree(tx_ring
->buffer_info
);
1124 ndev_err(adapter
->netdev
,
1125 "Unable to allocate memory for the transmit descriptor ring\n");
1130 * e1000e_setup_rx_resources - allocate Rx resources (Descriptors)
1131 * @adapter: board private structure
1133 * Returns 0 on success, negative on failure
1135 int e1000e_setup_rx_resources(struct e1000_adapter
*adapter
)
1137 struct e1000_ring
*rx_ring
= adapter
->rx_ring
;
1138 struct e1000_buffer
*buffer_info
;
1139 int i
, size
, desc_len
, err
= -ENOMEM
;
1141 size
= sizeof(struct e1000_buffer
) * rx_ring
->count
;
1142 rx_ring
->buffer_info
= vmalloc(size
);
1143 if (!rx_ring
->buffer_info
)
1145 memset(rx_ring
->buffer_info
, 0, size
);
1147 for (i
= 0; i
< rx_ring
->count
; i
++) {
1148 buffer_info
= &rx_ring
->buffer_info
[i
];
1149 buffer_info
->ps_pages
= kcalloc(PS_PAGE_BUFFERS
,
1150 sizeof(struct e1000_ps_page
),
1152 if (!buffer_info
->ps_pages
)
1156 desc_len
= sizeof(union e1000_rx_desc_packet_split
);
1158 /* Round up to nearest 4K */
1159 rx_ring
->size
= rx_ring
->count
* desc_len
;
1160 rx_ring
->size
= ALIGN(rx_ring
->size
, 4096);
1162 err
= e1000_alloc_ring_dma(adapter
, rx_ring
);
1166 rx_ring
->next_to_clean
= 0;
1167 rx_ring
->next_to_use
= 0;
1168 rx_ring
->rx_skb_top
= NULL
;
1173 for (i
= 0; i
< rx_ring
->count
; i
++) {
1174 buffer_info
= &rx_ring
->buffer_info
[i
];
1175 kfree(buffer_info
->ps_pages
);
1178 vfree(rx_ring
->buffer_info
);
1179 ndev_err(adapter
->netdev
,
1180 "Unable to allocate memory for the transmit descriptor ring\n");
1185 * e1000_clean_tx_ring - Free Tx Buffers
1186 * @adapter: board private structure
1188 static void e1000_clean_tx_ring(struct e1000_adapter
*adapter
)
1190 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
1191 struct e1000_buffer
*buffer_info
;
1195 for (i
= 0; i
< tx_ring
->count
; i
++) {
1196 buffer_info
= &tx_ring
->buffer_info
[i
];
1197 e1000_put_txbuf(adapter
, buffer_info
);
1200 size
= sizeof(struct e1000_buffer
) * tx_ring
->count
;
1201 memset(tx_ring
->buffer_info
, 0, size
);
1203 memset(tx_ring
->desc
, 0, tx_ring
->size
);
1205 tx_ring
->next_to_use
= 0;
1206 tx_ring
->next_to_clean
= 0;
1208 writel(0, adapter
->hw
.hw_addr
+ tx_ring
->head
);
1209 writel(0, adapter
->hw
.hw_addr
+ tx_ring
->tail
);
1213 * e1000e_free_tx_resources - Free Tx Resources per Queue
1214 * @adapter: board private structure
1216 * Free all transmit software resources
1218 void e1000e_free_tx_resources(struct e1000_adapter
*adapter
)
1220 struct pci_dev
*pdev
= adapter
->pdev
;
1221 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
1223 e1000_clean_tx_ring(adapter
);
1225 vfree(tx_ring
->buffer_info
);
1226 tx_ring
->buffer_info
= NULL
;
1228 dma_free_coherent(&pdev
->dev
, tx_ring
->size
, tx_ring
->desc
,
1230 tx_ring
->desc
= NULL
;
1234 * e1000e_free_rx_resources - Free Rx Resources
1235 * @adapter: board private structure
1237 * Free all receive software resources
1240 void e1000e_free_rx_resources(struct e1000_adapter
*adapter
)
1242 struct pci_dev
*pdev
= adapter
->pdev
;
1243 struct e1000_ring
*rx_ring
= adapter
->rx_ring
;
1246 e1000_clean_rx_ring(adapter
);
1248 for (i
= 0; i
< rx_ring
->count
; i
++) {
1249 kfree(rx_ring
->buffer_info
[i
].ps_pages
);
1252 vfree(rx_ring
->buffer_info
);
1253 rx_ring
->buffer_info
= NULL
;
1255 dma_free_coherent(&pdev
->dev
, rx_ring
->size
, rx_ring
->desc
,
1257 rx_ring
->desc
= NULL
;
1261 * e1000_update_itr - update the dynamic ITR value based on statistics
1262 * @adapter: pointer to adapter
1263 * @itr_setting: current adapter->itr
1264 * @packets: the number of packets during this measurement interval
1265 * @bytes: the number of bytes during this measurement interval
1267 * Stores a new ITR value based on packets and byte
1268 * counts during the last interrupt. The advantage of per interrupt
1269 * computation is faster updates and more accurate ITR for the current
1270 * traffic pattern. Constants in this function were computed
1271 * based on theoretical maximum wire speed and thresholds were set based
1272 * on testing data as well as attempting to minimize response time
1273 * while increasing bulk throughput.
1274 * this functionality is controlled by the InterruptThrottleRate module
1275 * parameter (see e1000_param.c)
1277 static unsigned int e1000_update_itr(struct e1000_adapter
*adapter
,
1278 u16 itr_setting
, int packets
,
1281 unsigned int retval
= itr_setting
;
1284 goto update_itr_done
;
1286 switch (itr_setting
) {
1287 case lowest_latency
:
1288 /* handle TSO and jumbo frames */
1289 if (bytes
/packets
> 8000)
1290 retval
= bulk_latency
;
1291 else if ((packets
< 5) && (bytes
> 512)) {
1292 retval
= low_latency
;
1295 case low_latency
: /* 50 usec aka 20000 ints/s */
1296 if (bytes
> 10000) {
1297 /* this if handles the TSO accounting */
1298 if (bytes
/packets
> 8000) {
1299 retval
= bulk_latency
;
1300 } else if ((packets
< 10) || ((bytes
/packets
) > 1200)) {
1301 retval
= bulk_latency
;
1302 } else if ((packets
> 35)) {
1303 retval
= lowest_latency
;
1305 } else if (bytes
/packets
> 2000) {
1306 retval
= bulk_latency
;
1307 } else if (packets
<= 2 && bytes
< 512) {
1308 retval
= lowest_latency
;
1311 case bulk_latency
: /* 250 usec aka 4000 ints/s */
1312 if (bytes
> 25000) {
1314 retval
= low_latency
;
1316 } else if (bytes
< 6000) {
1317 retval
= low_latency
;
1326 static void e1000_set_itr(struct e1000_adapter
*adapter
)
1328 struct e1000_hw
*hw
= &adapter
->hw
;
1330 u32 new_itr
= adapter
->itr
;
1332 /* for non-gigabit speeds, just fix the interrupt rate at 4000 */
1333 if (adapter
->link_speed
!= SPEED_1000
) {
1339 adapter
->tx_itr
= e1000_update_itr(adapter
,
1341 adapter
->total_tx_packets
,
1342 adapter
->total_tx_bytes
);
1343 /* conservative mode (itr 3) eliminates the lowest_latency setting */
1344 if (adapter
->itr_setting
== 3 && adapter
->tx_itr
== lowest_latency
)
1345 adapter
->tx_itr
= low_latency
;
1347 adapter
->rx_itr
= e1000_update_itr(adapter
,
1349 adapter
->total_rx_packets
,
1350 adapter
->total_rx_bytes
);
1351 /* conservative mode (itr 3) eliminates the lowest_latency setting */
1352 if (adapter
->itr_setting
== 3 && adapter
->rx_itr
== lowest_latency
)
1353 adapter
->rx_itr
= low_latency
;
1355 current_itr
= max(adapter
->rx_itr
, adapter
->tx_itr
);
1357 switch (current_itr
) {
1358 /* counts and packets in update_itr are dependent on these numbers */
1359 case lowest_latency
:
1363 new_itr
= 20000; /* aka hwitr = ~200 */
1373 if (new_itr
!= adapter
->itr
) {
1375 * this attempts to bias the interrupt rate towards Bulk
1376 * by adding intermediate steps when interrupt rate is
1379 new_itr
= new_itr
> adapter
->itr
?
1380 min(adapter
->itr
+ (new_itr
>> 2), new_itr
) :
1382 adapter
->itr
= new_itr
;
1383 ew32(ITR
, 1000000000 / (new_itr
* 256));
1388 * e1000_clean - NAPI Rx polling callback
1389 * @napi: struct associated with this polling callback
1390 * @budget: amount of packets driver is allowed to process this poll
1392 static int e1000_clean(struct napi_struct
*napi
, int budget
)
1394 struct e1000_adapter
*adapter
= container_of(napi
, struct e1000_adapter
, napi
);
1395 struct net_device
*poll_dev
= adapter
->netdev
;
1396 int tx_cleaned
= 0, work_done
= 0;
1398 /* Must NOT use netdev_priv macro here. */
1399 adapter
= poll_dev
->priv
;
1402 * e1000_clean is called per-cpu. This lock protects
1403 * tx_ring from being cleaned by multiple cpus
1404 * simultaneously. A failure obtaining the lock means
1405 * tx_ring is currently being cleaned anyway.
1407 if (spin_trylock(&adapter
->tx_queue_lock
)) {
1408 tx_cleaned
= e1000_clean_tx_irq(adapter
);
1409 spin_unlock(&adapter
->tx_queue_lock
);
1412 adapter
->clean_rx(adapter
, &work_done
, budget
);
1417 /* If budget not fully consumed, exit the polling mode */
1418 if (work_done
< budget
) {
1419 if (adapter
->itr_setting
& 3)
1420 e1000_set_itr(adapter
);
1421 netif_rx_complete(poll_dev
, napi
);
1422 e1000_irq_enable(adapter
);
1428 static void e1000_vlan_rx_add_vid(struct net_device
*netdev
, u16 vid
)
1430 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
1431 struct e1000_hw
*hw
= &adapter
->hw
;
1434 /* don't update vlan cookie if already programmed */
1435 if ((adapter
->hw
.mng_cookie
.status
&
1436 E1000_MNG_DHCP_COOKIE_STATUS_VLAN
) &&
1437 (vid
== adapter
->mng_vlan_id
))
1439 /* add VID to filter table */
1440 index
= (vid
>> 5) & 0x7F;
1441 vfta
= E1000_READ_REG_ARRAY(hw
, E1000_VFTA
, index
);
1442 vfta
|= (1 << (vid
& 0x1F));
1443 e1000e_write_vfta(hw
, index
, vfta
);
1446 static void e1000_vlan_rx_kill_vid(struct net_device
*netdev
, u16 vid
)
1448 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
1449 struct e1000_hw
*hw
= &adapter
->hw
;
1452 if (!test_bit(__E1000_DOWN
, &adapter
->state
))
1453 e1000_irq_disable(adapter
);
1454 vlan_group_set_device(adapter
->vlgrp
, vid
, NULL
);
1456 if (!test_bit(__E1000_DOWN
, &adapter
->state
))
1457 e1000_irq_enable(adapter
);
1459 if ((adapter
->hw
.mng_cookie
.status
&
1460 E1000_MNG_DHCP_COOKIE_STATUS_VLAN
) &&
1461 (vid
== adapter
->mng_vlan_id
)) {
1462 /* release control to f/w */
1463 e1000_release_hw_control(adapter
);
1467 /* remove VID from filter table */
1468 index
= (vid
>> 5) & 0x7F;
1469 vfta
= E1000_READ_REG_ARRAY(hw
, E1000_VFTA
, index
);
1470 vfta
&= ~(1 << (vid
& 0x1F));
1471 e1000e_write_vfta(hw
, index
, vfta
);
1474 static void e1000_update_mng_vlan(struct e1000_adapter
*adapter
)
1476 struct net_device
*netdev
= adapter
->netdev
;
1477 u16 vid
= adapter
->hw
.mng_cookie
.vlan_id
;
1478 u16 old_vid
= adapter
->mng_vlan_id
;
1480 if (!adapter
->vlgrp
)
1483 if (!vlan_group_get_device(adapter
->vlgrp
, vid
)) {
1484 adapter
->mng_vlan_id
= E1000_MNG_VLAN_NONE
;
1485 if (adapter
->hw
.mng_cookie
.status
&
1486 E1000_MNG_DHCP_COOKIE_STATUS_VLAN
) {
1487 e1000_vlan_rx_add_vid(netdev
, vid
);
1488 adapter
->mng_vlan_id
= vid
;
1491 if ((old_vid
!= (u16
)E1000_MNG_VLAN_NONE
) &&
1493 !vlan_group_get_device(adapter
->vlgrp
, old_vid
))
1494 e1000_vlan_rx_kill_vid(netdev
, old_vid
);
1496 adapter
->mng_vlan_id
= vid
;
1501 static void e1000_vlan_rx_register(struct net_device
*netdev
,
1502 struct vlan_group
*grp
)
1504 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
1505 struct e1000_hw
*hw
= &adapter
->hw
;
1508 if (!test_bit(__E1000_DOWN
, &adapter
->state
))
1509 e1000_irq_disable(adapter
);
1510 adapter
->vlgrp
= grp
;
1513 /* enable VLAN tag insert/strip */
1515 ctrl
|= E1000_CTRL_VME
;
1518 if (adapter
->flags
& FLAG_HAS_HW_VLAN_FILTER
) {
1519 /* enable VLAN receive filtering */
1521 rctl
|= E1000_RCTL_VFE
;
1522 rctl
&= ~E1000_RCTL_CFIEN
;
1524 e1000_update_mng_vlan(adapter
);
1527 /* disable VLAN tag insert/strip */
1529 ctrl
&= ~E1000_CTRL_VME
;
1532 if (adapter
->flags
& FLAG_HAS_HW_VLAN_FILTER
) {
1533 /* disable VLAN filtering */
1535 rctl
&= ~E1000_RCTL_VFE
;
1537 if (adapter
->mng_vlan_id
!=
1538 (u16
)E1000_MNG_VLAN_NONE
) {
1539 e1000_vlan_rx_kill_vid(netdev
,
1540 adapter
->mng_vlan_id
);
1541 adapter
->mng_vlan_id
= E1000_MNG_VLAN_NONE
;
1546 if (!test_bit(__E1000_DOWN
, &adapter
->state
))
1547 e1000_irq_enable(adapter
);
1550 static void e1000_restore_vlan(struct e1000_adapter
*adapter
)
1554 e1000_vlan_rx_register(adapter
->netdev
, adapter
->vlgrp
);
1556 if (!adapter
->vlgrp
)
1559 for (vid
= 0; vid
< VLAN_GROUP_ARRAY_LEN
; vid
++) {
1560 if (!vlan_group_get_device(adapter
->vlgrp
, vid
))
1562 e1000_vlan_rx_add_vid(adapter
->netdev
, vid
);
1566 static void e1000_init_manageability(struct e1000_adapter
*adapter
)
1568 struct e1000_hw
*hw
= &adapter
->hw
;
1571 if (!(adapter
->flags
& FLAG_MNG_PT_ENABLED
))
1577 * enable receiving management packets to the host. this will probably
1578 * generate destination unreachable messages from the host OS, but
1579 * the packets will be handled on SMBUS
1581 manc
|= E1000_MANC_EN_MNG2HOST
;
1582 manc2h
= er32(MANC2H
);
1583 #define E1000_MNG2HOST_PORT_623 (1 << 5)
1584 #define E1000_MNG2HOST_PORT_664 (1 << 6)
1585 manc2h
|= E1000_MNG2HOST_PORT_623
;
1586 manc2h
|= E1000_MNG2HOST_PORT_664
;
1587 ew32(MANC2H
, manc2h
);
1592 * e1000_configure_tx - Configure 8254x Transmit Unit after Reset
1593 * @adapter: board private structure
1595 * Configure the Tx unit of the MAC after a reset.
1597 static void e1000_configure_tx(struct e1000_adapter
*adapter
)
1599 struct e1000_hw
*hw
= &adapter
->hw
;
1600 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
1602 u32 tdlen
, tctl
, tipg
, tarc
;
1605 /* Setup the HW Tx Head and Tail descriptor pointers */
1606 tdba
= tx_ring
->dma
;
1607 tdlen
= tx_ring
->count
* sizeof(struct e1000_tx_desc
);
1608 ew32(TDBAL
, (tdba
& DMA_32BIT_MASK
));
1609 ew32(TDBAH
, (tdba
>> 32));
1613 tx_ring
->head
= E1000_TDH
;
1614 tx_ring
->tail
= E1000_TDT
;
1616 /* Set the default values for the Tx Inter Packet Gap timer */
1617 tipg
= DEFAULT_82543_TIPG_IPGT_COPPER
; /* 8 */
1618 ipgr1
= DEFAULT_82543_TIPG_IPGR1
; /* 8 */
1619 ipgr2
= DEFAULT_82543_TIPG_IPGR2
; /* 6 */
1621 if (adapter
->flags
& FLAG_TIPG_MEDIUM_FOR_80003ESLAN
)
1622 ipgr2
= DEFAULT_80003ES2LAN_TIPG_IPGR2
; /* 7 */
1624 tipg
|= ipgr1
<< E1000_TIPG_IPGR1_SHIFT
;
1625 tipg
|= ipgr2
<< E1000_TIPG_IPGR2_SHIFT
;
1628 /* Set the Tx Interrupt Delay register */
1629 ew32(TIDV
, adapter
->tx_int_delay
);
1630 /* Tx irq moderation */
1631 ew32(TADV
, adapter
->tx_abs_int_delay
);
1633 /* Program the Transmit Control Register */
1635 tctl
&= ~E1000_TCTL_CT
;
1636 tctl
|= E1000_TCTL_PSP
| E1000_TCTL_RTLC
|
1637 (E1000_COLLISION_THRESHOLD
<< E1000_CT_SHIFT
);
1639 if (adapter
->flags
& FLAG_TARC_SPEED_MODE_BIT
) {
1642 * set the speed mode bit, we'll clear it if we're not at
1643 * gigabit link later
1645 #define SPEED_MODE_BIT (1 << 21)
1646 tarc
|= SPEED_MODE_BIT
;
1650 /* errata: program both queues to unweighted RR */
1651 if (adapter
->flags
& FLAG_TARC_SET_BIT_ZERO
) {
1660 e1000e_config_collision_dist(hw
);
1662 /* Setup Transmit Descriptor Settings for eop descriptor */
1663 adapter
->txd_cmd
= E1000_TXD_CMD_EOP
| E1000_TXD_CMD_IFCS
;
1665 /* only set IDE if we are delaying interrupts using the timers */
1666 if (adapter
->tx_int_delay
)
1667 adapter
->txd_cmd
|= E1000_TXD_CMD_IDE
;
1669 /* enable Report Status bit */
1670 adapter
->txd_cmd
|= E1000_TXD_CMD_RS
;
1674 adapter
->tx_queue_len
= adapter
->netdev
->tx_queue_len
;
1678 * e1000_setup_rctl - configure the receive control registers
1679 * @adapter: Board private structure
1681 #define PAGE_USE_COUNT(S) (((S) >> PAGE_SHIFT) + \
1682 (((S) & (PAGE_SIZE - 1)) ? 1 : 0))
1683 static void e1000_setup_rctl(struct e1000_adapter
*adapter
)
1685 struct e1000_hw
*hw
= &adapter
->hw
;
1690 /* Program MC offset vector base */
1692 rctl
&= ~(3 << E1000_RCTL_MO_SHIFT
);
1693 rctl
|= E1000_RCTL_EN
| E1000_RCTL_BAM
|
1694 E1000_RCTL_LBM_NO
| E1000_RCTL_RDMTS_HALF
|
1695 (adapter
->hw
.mac
.mc_filter_type
<< E1000_RCTL_MO_SHIFT
);
1697 /* Do not Store bad packets */
1698 rctl
&= ~E1000_RCTL_SBP
;
1700 /* Enable Long Packet receive */
1701 if (adapter
->netdev
->mtu
<= ETH_DATA_LEN
)
1702 rctl
&= ~E1000_RCTL_LPE
;
1704 rctl
|= E1000_RCTL_LPE
;
1706 /* Enable hardware CRC frame stripping */
1707 rctl
|= E1000_RCTL_SECRC
;
1709 /* Setup buffer sizes */
1710 rctl
&= ~E1000_RCTL_SZ_4096
;
1711 rctl
|= E1000_RCTL_BSEX
;
1712 switch (adapter
->rx_buffer_len
) {
1714 rctl
|= E1000_RCTL_SZ_256
;
1715 rctl
&= ~E1000_RCTL_BSEX
;
1718 rctl
|= E1000_RCTL_SZ_512
;
1719 rctl
&= ~E1000_RCTL_BSEX
;
1722 rctl
|= E1000_RCTL_SZ_1024
;
1723 rctl
&= ~E1000_RCTL_BSEX
;
1727 rctl
|= E1000_RCTL_SZ_2048
;
1728 rctl
&= ~E1000_RCTL_BSEX
;
1731 rctl
|= E1000_RCTL_SZ_4096
;
1734 rctl
|= E1000_RCTL_SZ_8192
;
1737 rctl
|= E1000_RCTL_SZ_16384
;
1742 * 82571 and greater support packet-split where the protocol
1743 * header is placed in skb->data and the packet data is
1744 * placed in pages hanging off of skb_shinfo(skb)->nr_frags.
1745 * In the case of a non-split, skb->data is linearly filled,
1746 * followed by the page buffers. Therefore, skb->data is
1747 * sized to hold the largest protocol header.
1749 * allocations using alloc_page take too long for regular MTU
1750 * so only enable packet split for jumbo frames
1752 * Using pages when the page size is greater than 16k wastes
1753 * a lot of memory, since we allocate 3 pages at all times
1756 adapter
->rx_ps_pages
= 0;
1757 pages
= PAGE_USE_COUNT(adapter
->netdev
->mtu
);
1758 if ((pages
<= 3) && (PAGE_SIZE
<= 16384) && (rctl
& E1000_RCTL_LPE
))
1759 adapter
->rx_ps_pages
= pages
;
1761 if (adapter
->rx_ps_pages
) {
1762 /* Configure extra packet-split registers */
1763 rfctl
= er32(RFCTL
);
1764 rfctl
|= E1000_RFCTL_EXTEN
;
1766 * disable packet split support for IPv6 extension headers,
1767 * because some malformed IPv6 headers can hang the Rx
1769 rfctl
|= (E1000_RFCTL_IPV6_EX_DIS
|
1770 E1000_RFCTL_NEW_IPV6_EXT_DIS
);
1774 /* Enable Packet split descriptors */
1775 rctl
|= E1000_RCTL_DTYP_PS
;
1777 psrctl
|= adapter
->rx_ps_bsize0
>>
1778 E1000_PSRCTL_BSIZE0_SHIFT
;
1780 switch (adapter
->rx_ps_pages
) {
1782 psrctl
|= PAGE_SIZE
<<
1783 E1000_PSRCTL_BSIZE3_SHIFT
;
1785 psrctl
|= PAGE_SIZE
<<
1786 E1000_PSRCTL_BSIZE2_SHIFT
;
1788 psrctl
|= PAGE_SIZE
>>
1789 E1000_PSRCTL_BSIZE1_SHIFT
;
1793 ew32(PSRCTL
, psrctl
);
1800 * e1000_configure_rx - Configure Receive Unit after Reset
1801 * @adapter: board private structure
1803 * Configure the Rx unit of the MAC after a reset.
1805 static void e1000_configure_rx(struct e1000_adapter
*adapter
)
1807 struct e1000_hw
*hw
= &adapter
->hw
;
1808 struct e1000_ring
*rx_ring
= adapter
->rx_ring
;
1810 u32 rdlen
, rctl
, rxcsum
, ctrl_ext
;
1812 if (adapter
->rx_ps_pages
) {
1813 /* this is a 32 byte descriptor */
1814 rdlen
= rx_ring
->count
*
1815 sizeof(union e1000_rx_desc_packet_split
);
1816 adapter
->clean_rx
= e1000_clean_rx_irq_ps
;
1817 adapter
->alloc_rx_buf
= e1000_alloc_rx_buffers_ps
;
1819 rdlen
= rx_ring
->count
*
1820 sizeof(struct e1000_rx_desc
);
1821 adapter
->clean_rx
= e1000_clean_rx_irq
;
1822 adapter
->alloc_rx_buf
= e1000_alloc_rx_buffers
;
1825 /* disable receives while setting up the descriptors */
1827 ew32(RCTL
, rctl
& ~E1000_RCTL_EN
);
1831 /* set the Receive Delay Timer Register */
1832 ew32(RDTR
, adapter
->rx_int_delay
);
1834 /* irq moderation */
1835 ew32(RADV
, adapter
->rx_abs_int_delay
);
1836 if (adapter
->itr_setting
!= 0)
1837 ew32(ITR
, 1000000000 / (adapter
->itr
* 256));
1839 ctrl_ext
= er32(CTRL_EXT
);
1840 /* Reset delay timers after every interrupt */
1841 ctrl_ext
|= E1000_CTRL_EXT_INT_TIMER_CLR
;
1842 /* Auto-Mask interrupts upon ICR access */
1843 ctrl_ext
|= E1000_CTRL_EXT_IAME
;
1844 ew32(IAM
, 0xffffffff);
1845 ew32(CTRL_EXT
, ctrl_ext
);
1849 * Setup the HW Rx Head and Tail Descriptor Pointers and
1850 * the Base and Length of the Rx Descriptor Ring
1852 rdba
= rx_ring
->dma
;
1853 ew32(RDBAL
, (rdba
& DMA_32BIT_MASK
));
1854 ew32(RDBAH
, (rdba
>> 32));
1858 rx_ring
->head
= E1000_RDH
;
1859 rx_ring
->tail
= E1000_RDT
;
1861 /* Enable Receive Checksum Offload for TCP and UDP */
1862 rxcsum
= er32(RXCSUM
);
1863 if (adapter
->flags
& FLAG_RX_CSUM_ENABLED
) {
1864 rxcsum
|= E1000_RXCSUM_TUOFL
;
1867 * IPv4 payload checksum for UDP fragments must be
1868 * used in conjunction with packet-split.
1870 if (adapter
->rx_ps_pages
)
1871 rxcsum
|= E1000_RXCSUM_IPPCSE
;
1873 rxcsum
&= ~E1000_RXCSUM_TUOFL
;
1874 /* no need to clear IPPCSE as it defaults to 0 */
1876 ew32(RXCSUM
, rxcsum
);
1879 * Enable early receives on supported devices, only takes effect when
1880 * packet size is equal or larger than the specified value (in 8 byte
1881 * units), e.g. using jumbo frames when setting to E1000_ERT_2048
1883 if ((adapter
->flags
& FLAG_HAS_ERT
) &&
1884 (adapter
->netdev
->mtu
> ETH_DATA_LEN
))
1885 ew32(ERT
, E1000_ERT_2048
);
1887 /* Enable Receives */
1892 * e1000_update_mc_addr_list - Update Multicast addresses
1893 * @hw: pointer to the HW structure
1894 * @mc_addr_list: array of multicast addresses to program
1895 * @mc_addr_count: number of multicast addresses to program
1896 * @rar_used_count: the first RAR register free to program
1897 * @rar_count: total number of supported Receive Address Registers
1899 * Updates the Receive Address Registers and Multicast Table Array.
1900 * The caller must have a packed mc_addr_list of multicast addresses.
1901 * The parameter rar_count will usually be hw->mac.rar_entry_count
1902 * unless there are workarounds that change this. Currently no func pointer
1903 * exists and all implementations are handled in the generic version of this
1906 static void e1000_update_mc_addr_list(struct e1000_hw
*hw
, u8
*mc_addr_list
,
1907 u32 mc_addr_count
, u32 rar_used_count
,
1910 hw
->mac
.ops
.update_mc_addr_list(hw
, mc_addr_list
, mc_addr_count
,
1911 rar_used_count
, rar_count
);
1915 * e1000_set_multi - Multicast and Promiscuous mode set
1916 * @netdev: network interface device structure
1918 * The set_multi entry point is called whenever the multicast address
1919 * list or the network interface flags are updated. This routine is
1920 * responsible for configuring the hardware for proper multicast,
1921 * promiscuous mode, and all-multi behavior.
1923 static void e1000_set_multi(struct net_device
*netdev
)
1925 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
1926 struct e1000_hw
*hw
= &adapter
->hw
;
1927 struct e1000_mac_info
*mac
= &hw
->mac
;
1928 struct dev_mc_list
*mc_ptr
;
1933 /* Check for Promiscuous and All Multicast modes */
1937 if (netdev
->flags
& IFF_PROMISC
) {
1938 rctl
|= (E1000_RCTL_UPE
| E1000_RCTL_MPE
);
1939 } else if (netdev
->flags
& IFF_ALLMULTI
) {
1940 rctl
|= E1000_RCTL_MPE
;
1941 rctl
&= ~E1000_RCTL_UPE
;
1943 rctl
&= ~(E1000_RCTL_UPE
| E1000_RCTL_MPE
);
1948 if (netdev
->mc_count
) {
1949 mta_list
= kmalloc(netdev
->mc_count
* 6, GFP_ATOMIC
);
1953 /* prepare a packed array of only addresses. */
1954 mc_ptr
= netdev
->mc_list
;
1956 for (i
= 0; i
< netdev
->mc_count
; i
++) {
1959 memcpy(mta_list
+ (i
*ETH_ALEN
), mc_ptr
->dmi_addr
,
1961 mc_ptr
= mc_ptr
->next
;
1964 e1000_update_mc_addr_list(hw
, mta_list
, i
, 1,
1965 mac
->rar_entry_count
);
1969 * if we're called from probe, we might not have
1970 * anything to do here, so clear out the list
1972 e1000_update_mc_addr_list(hw
, NULL
, 0, 1, mac
->rar_entry_count
);
1977 * e1000_configure - configure the hardware for Rx and Tx
1978 * @adapter: private board structure
1980 static void e1000_configure(struct e1000_adapter
*adapter
)
1982 e1000_set_multi(adapter
->netdev
);
1984 e1000_restore_vlan(adapter
);
1985 e1000_init_manageability(adapter
);
1987 e1000_configure_tx(adapter
);
1988 e1000_setup_rctl(adapter
);
1989 e1000_configure_rx(adapter
);
1990 adapter
->alloc_rx_buf(adapter
, e1000_desc_unused(adapter
->rx_ring
));
1994 * e1000e_power_up_phy - restore link in case the phy was powered down
1995 * @adapter: address of board private structure
1997 * The phy may be powered down to save power and turn off link when the
1998 * driver is unloaded and wake on lan is not enabled (among others)
1999 * *** this routine MUST be followed by a call to e1000e_reset ***
2001 void e1000e_power_up_phy(struct e1000_adapter
*adapter
)
2005 /* Just clear the power down bit to wake the phy back up */
2006 if (adapter
->hw
.media_type
== e1000_media_type_copper
) {
2008 * According to the manual, the phy will retain its
2009 * settings across a power-down/up cycle
2011 e1e_rphy(&adapter
->hw
, PHY_CONTROL
, &mii_reg
);
2012 mii_reg
&= ~MII_CR_POWER_DOWN
;
2013 e1e_wphy(&adapter
->hw
, PHY_CONTROL
, mii_reg
);
2016 adapter
->hw
.mac
.ops
.setup_link(&adapter
->hw
);
2020 * e1000_power_down_phy - Power down the PHY
2022 * Power down the PHY so no link is implied when interface is down
2023 * The PHY cannot be powered down is management or WoL is active
2025 static void e1000_power_down_phy(struct e1000_adapter
*adapter
)
2027 struct e1000_hw
*hw
= &adapter
->hw
;
2030 /* WoL is enabled */
2034 /* non-copper PHY? */
2035 if (adapter
->hw
.media_type
!= e1000_media_type_copper
)
2038 /* reset is blocked because of a SoL/IDER session */
2039 if (e1000e_check_mng_mode(hw
) || e1000_check_reset_block(hw
))
2042 /* manageability (AMT) is enabled */
2043 if (er32(MANC
) & E1000_MANC_SMBUS_EN
)
2046 /* power down the PHY */
2047 e1e_rphy(hw
, PHY_CONTROL
, &mii_reg
);
2048 mii_reg
|= MII_CR_POWER_DOWN
;
2049 e1e_wphy(hw
, PHY_CONTROL
, mii_reg
);
2054 * e1000e_reset - bring the hardware into a known good state
2056 * This function boots the hardware and enables some settings that
2057 * require a configuration cycle of the hardware - those cannot be
2058 * set/changed during runtime. After reset the device needs to be
2059 * properly configured for Rx, Tx etc.
2061 void e1000e_reset(struct e1000_adapter
*adapter
)
2063 struct e1000_mac_info
*mac
= &adapter
->hw
.mac
;
2064 struct e1000_hw
*hw
= &adapter
->hw
;
2065 u32 tx_space
, min_tx_space
, min_rx_space
;
2069 /* reset Packet Buffer Allocation to default */
2070 ew32(PBA
, adapter
->pba
);
2072 if (mac
->max_frame_size
> ETH_FRAME_LEN
+ ETH_FCS_LEN
) {
2074 * To maintain wire speed transmits, the Tx FIFO should be
2075 * large enough to accommodate two full transmit packets,
2076 * rounded up to the next 1KB and expressed in KB. Likewise,
2077 * the Rx FIFO should be large enough to accommodate at least
2078 * one full receive packet and is similarly rounded up and
2082 /* upper 16 bits has Tx packet buffer allocation size in KB */
2083 tx_space
= pba
>> 16;
2084 /* lower 16 bits has Rx packet buffer allocation size in KB */
2087 * the Tx fifo also stores 16 bytes of information about the tx
2088 * but don't include ethernet FCS because hardware appends it
2089 */ min_tx_space
= (mac
->max_frame_size
+
2090 sizeof(struct e1000_tx_desc
) -
2092 min_tx_space
= ALIGN(min_tx_space
, 1024);
2093 min_tx_space
>>= 10;
2094 /* software strips receive CRC, so leave room for it */
2095 min_rx_space
= mac
->max_frame_size
;
2096 min_rx_space
= ALIGN(min_rx_space
, 1024);
2097 min_rx_space
>>= 10;
2100 * If current Tx allocation is less than the min Tx FIFO size,
2101 * and the min Tx FIFO size is less than the current Rx FIFO
2102 * allocation, take space away from current Rx allocation
2104 if ((tx_space
< min_tx_space
) &&
2105 ((min_tx_space
- tx_space
) < pba
)) {
2106 pba
-= min_tx_space
- tx_space
;
2109 * if short on Rx space, Rx wins and must trump tx
2110 * adjustment or use Early Receive if available
2112 if ((pba
< min_rx_space
) &&
2113 (!(adapter
->flags
& FLAG_HAS_ERT
)))
2114 /* ERT enabled in e1000_configure_rx */
2123 * flow control settings
2125 * The high water mark must be low enough to fit one full frame
2126 * (or the size used for early receive) above it in the Rx FIFO.
2127 * Set it to the lower of:
2128 * - 90% of the Rx FIFO size, and
2129 * - the full Rx FIFO size minus the early receive size (for parts
2130 * with ERT support assuming ERT set to E1000_ERT_2048), or
2131 * - the full Rx FIFO size minus one full frame
2133 if (adapter
->flags
& FLAG_HAS_ERT
)
2134 hwm
= min(((adapter
->pba
<< 10) * 9 / 10),
2135 ((adapter
->pba
<< 10) - (E1000_ERT_2048
<< 3)));
2137 hwm
= min(((adapter
->pba
<< 10) * 9 / 10),
2138 ((adapter
->pba
<< 10) - mac
->max_frame_size
));
2140 mac
->fc_high_water
= hwm
& 0xFFF8; /* 8-byte granularity */
2141 mac
->fc_low_water
= mac
->fc_high_water
- 8;
2143 if (adapter
->flags
& FLAG_DISABLE_FC_PAUSE_TIME
)
2144 mac
->fc_pause_time
= 0xFFFF;
2146 mac
->fc_pause_time
= E1000_FC_PAUSE_TIME
;
2147 mac
->fc
= mac
->original_fc
;
2149 /* Allow time for pending master requests to run */
2150 mac
->ops
.reset_hw(hw
);
2153 if (mac
->ops
.init_hw(hw
))
2154 ndev_err(adapter
->netdev
, "Hardware Error\n");
2156 e1000_update_mng_vlan(adapter
);
2158 /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
2159 ew32(VET
, ETH_P_8021Q
);
2161 e1000e_reset_adaptive(hw
);
2162 e1000_get_phy_info(hw
);
2164 if (!(adapter
->flags
& FLAG_SMART_POWER_DOWN
)) {
2167 * speed up time to link by disabling smart power down, ignore
2168 * the return value of this function because there is nothing
2169 * different we would do if it failed
2171 e1e_rphy(hw
, IGP02E1000_PHY_POWER_MGMT
, &phy_data
);
2172 phy_data
&= ~IGP02E1000_PM_SPD
;
2173 e1e_wphy(hw
, IGP02E1000_PHY_POWER_MGMT
, phy_data
);
2177 int e1000e_up(struct e1000_adapter
*adapter
)
2179 struct e1000_hw
*hw
= &adapter
->hw
;
2181 /* hardware has been reset, we need to reload some things */
2182 e1000_configure(adapter
);
2184 clear_bit(__E1000_DOWN
, &adapter
->state
);
2186 napi_enable(&adapter
->napi
);
2187 e1000_irq_enable(adapter
);
2189 /* fire a link change interrupt to start the watchdog */
2190 ew32(ICS
, E1000_ICS_LSC
);
2194 void e1000e_down(struct e1000_adapter
*adapter
)
2196 struct net_device
*netdev
= adapter
->netdev
;
2197 struct e1000_hw
*hw
= &adapter
->hw
;
2201 * signal that we're down so the interrupt handler does not
2202 * reschedule our watchdog timer
2204 set_bit(__E1000_DOWN
, &adapter
->state
);
2206 /* disable receives in the hardware */
2208 ew32(RCTL
, rctl
& ~E1000_RCTL_EN
);
2209 /* flush and sleep below */
2211 netif_stop_queue(netdev
);
2213 /* disable transmits in the hardware */
2215 tctl
&= ~E1000_TCTL_EN
;
2217 /* flush both disables and wait for them to finish */
2221 napi_disable(&adapter
->napi
);
2222 e1000_irq_disable(adapter
);
2224 del_timer_sync(&adapter
->watchdog_timer
);
2225 del_timer_sync(&adapter
->phy_info_timer
);
2227 netdev
->tx_queue_len
= adapter
->tx_queue_len
;
2228 netif_carrier_off(netdev
);
2229 adapter
->link_speed
= 0;
2230 adapter
->link_duplex
= 0;
2232 e1000e_reset(adapter
);
2233 e1000_clean_tx_ring(adapter
);
2234 e1000_clean_rx_ring(adapter
);
2237 * TODO: for power management, we could drop the link and
2238 * pci_disable_device here.
2242 void e1000e_reinit_locked(struct e1000_adapter
*adapter
)
2245 while (test_and_set_bit(__E1000_RESETTING
, &adapter
->state
))
2247 e1000e_down(adapter
);
2249 clear_bit(__E1000_RESETTING
, &adapter
->state
);
2253 * e1000_sw_init - Initialize general software structures (struct e1000_adapter)
2254 * @adapter: board private structure to initialize
2256 * e1000_sw_init initializes the Adapter private data structure.
2257 * Fields are initialized based on PCI device information and
2258 * OS network device settings (MTU size).
2260 static int __devinit
e1000_sw_init(struct e1000_adapter
*adapter
)
2262 struct e1000_hw
*hw
= &adapter
->hw
;
2263 struct net_device
*netdev
= adapter
->netdev
;
2265 adapter
->rx_buffer_len
= ETH_FRAME_LEN
+ VLAN_HLEN
+ ETH_FCS_LEN
;
2266 adapter
->rx_ps_bsize0
= 128;
2267 hw
->mac
.max_frame_size
= netdev
->mtu
+ ETH_HLEN
+ ETH_FCS_LEN
;
2268 hw
->mac
.min_frame_size
= ETH_ZLEN
+ ETH_FCS_LEN
;
2270 adapter
->tx_ring
= kzalloc(sizeof(struct e1000_ring
), GFP_KERNEL
);
2271 if (!adapter
->tx_ring
)
2274 adapter
->rx_ring
= kzalloc(sizeof(struct e1000_ring
), GFP_KERNEL
);
2275 if (!adapter
->rx_ring
)
2278 spin_lock_init(&adapter
->tx_queue_lock
);
2280 /* Explicitly disable IRQ since the NIC can be in any state. */
2281 e1000_irq_disable(adapter
);
2283 spin_lock_init(&adapter
->stats_lock
);
2285 set_bit(__E1000_DOWN
, &adapter
->state
);
2289 ndev_err(netdev
, "Unable to allocate memory for queues\n");
2290 kfree(adapter
->rx_ring
);
2291 kfree(adapter
->tx_ring
);
2296 * e1000_open - Called when a network interface is made active
2297 * @netdev: network interface device structure
2299 * Returns 0 on success, negative value on failure
2301 * The open entry point is called when a network interface is made
2302 * active by the system (IFF_UP). At this point all resources needed
2303 * for transmit and receive operations are allocated, the interrupt
2304 * handler is registered with the OS, the watchdog timer is started,
2305 * and the stack is notified that the interface is ready.
2307 static int e1000_open(struct net_device
*netdev
)
2309 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
2310 struct e1000_hw
*hw
= &adapter
->hw
;
2313 /* disallow open during test */
2314 if (test_bit(__E1000_TESTING
, &adapter
->state
))
2317 /* allocate transmit descriptors */
2318 err
= e1000e_setup_tx_resources(adapter
);
2322 /* allocate receive descriptors */
2323 err
= e1000e_setup_rx_resources(adapter
);
2327 e1000e_power_up_phy(adapter
);
2329 adapter
->mng_vlan_id
= E1000_MNG_VLAN_NONE
;
2330 if ((adapter
->hw
.mng_cookie
.status
&
2331 E1000_MNG_DHCP_COOKIE_STATUS_VLAN
))
2332 e1000_update_mng_vlan(adapter
);
2335 * If AMT is enabled, let the firmware know that the network
2336 * interface is now open
2338 if ((adapter
->flags
& FLAG_HAS_AMT
) &&
2339 e1000e_check_mng_mode(&adapter
->hw
))
2340 e1000_get_hw_control(adapter
);
2343 * before we allocate an interrupt, we must be ready to handle it.
2344 * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
2345 * as soon as we call pci_request_irq, so we have to setup our
2346 * clean_rx handler before we do so.
2348 e1000_configure(adapter
);
2350 err
= e1000_request_irq(adapter
);
2354 /* From here on the code is the same as e1000e_up() */
2355 clear_bit(__E1000_DOWN
, &adapter
->state
);
2357 napi_enable(&adapter
->napi
);
2359 e1000_irq_enable(adapter
);
2361 /* fire a link status change interrupt to start the watchdog */
2362 ew32(ICS
, E1000_ICS_LSC
);
2367 e1000_release_hw_control(adapter
);
2368 e1000_power_down_phy(adapter
);
2369 e1000e_free_rx_resources(adapter
);
2371 e1000e_free_tx_resources(adapter
);
2373 e1000e_reset(adapter
);
2379 * e1000_close - Disables a network interface
2380 * @netdev: network interface device structure
2382 * Returns 0, this is not allowed to fail
2384 * The close entry point is called when an interface is de-activated
2385 * by the OS. The hardware is still under the drivers control, but
2386 * needs to be disabled. A global MAC reset is issued to stop the
2387 * hardware, and all transmit and receive resources are freed.
2389 static int e1000_close(struct net_device
*netdev
)
2391 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
2393 WARN_ON(test_bit(__E1000_RESETTING
, &adapter
->state
));
2394 e1000e_down(adapter
);
2395 e1000_power_down_phy(adapter
);
2396 e1000_free_irq(adapter
);
2398 e1000e_free_tx_resources(adapter
);
2399 e1000e_free_rx_resources(adapter
);
2402 * kill manageability vlan ID if supported, but not if a vlan with
2403 * the same ID is registered on the host OS (let 8021q kill it)
2405 if ((adapter
->hw
.mng_cookie
.status
&
2406 E1000_MNG_DHCP_COOKIE_STATUS_VLAN
) &&
2408 vlan_group_get_device(adapter
->vlgrp
, adapter
->mng_vlan_id
)))
2409 e1000_vlan_rx_kill_vid(netdev
, adapter
->mng_vlan_id
);
2412 * If AMT is enabled, let the firmware know that the network
2413 * interface is now closed
2415 if ((adapter
->flags
& FLAG_HAS_AMT
) &&
2416 e1000e_check_mng_mode(&adapter
->hw
))
2417 e1000_release_hw_control(adapter
);
2422 * e1000_set_mac - Change the Ethernet Address of the NIC
2423 * @netdev: network interface device structure
2424 * @p: pointer to an address structure
2426 * Returns 0 on success, negative on failure
2428 static int e1000_set_mac(struct net_device
*netdev
, void *p
)
2430 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
2431 struct sockaddr
*addr
= p
;
2433 if (!is_valid_ether_addr(addr
->sa_data
))
2434 return -EADDRNOTAVAIL
;
2436 memcpy(netdev
->dev_addr
, addr
->sa_data
, netdev
->addr_len
);
2437 memcpy(adapter
->hw
.mac
.addr
, addr
->sa_data
, netdev
->addr_len
);
2439 e1000e_rar_set(&adapter
->hw
, adapter
->hw
.mac
.addr
, 0);
2441 if (adapter
->flags
& FLAG_RESET_OVERWRITES_LAA
) {
2442 /* activate the work around */
2443 e1000e_set_laa_state_82571(&adapter
->hw
, 1);
2446 * Hold a copy of the LAA in RAR[14] This is done so that
2447 * between the time RAR[0] gets clobbered and the time it
2448 * gets fixed (in e1000_watchdog), the actual LAA is in one
2449 * of the RARs and no incoming packets directed to this port
2450 * are dropped. Eventually the LAA will be in RAR[0] and
2453 e1000e_rar_set(&adapter
->hw
,
2454 adapter
->hw
.mac
.addr
,
2455 adapter
->hw
.mac
.rar_entry_count
- 1);
2462 * Need to wait a few seconds after link up to get diagnostic information from
2465 static void e1000_update_phy_info(unsigned long data
)
2467 struct e1000_adapter
*adapter
= (struct e1000_adapter
*) data
;
2468 e1000_get_phy_info(&adapter
->hw
);
2472 * e1000e_update_stats - Update the board statistics counters
2473 * @adapter: board private structure
2475 void e1000e_update_stats(struct e1000_adapter
*adapter
)
2477 struct e1000_hw
*hw
= &adapter
->hw
;
2478 struct pci_dev
*pdev
= adapter
->pdev
;
2479 unsigned long irq_flags
;
2482 #define PHY_IDLE_ERROR_COUNT_MASK 0x00FF
2485 * Prevent stats update while adapter is being reset, or if the pci
2486 * connection is down.
2488 if (adapter
->link_speed
== 0)
2490 if (pci_channel_offline(pdev
))
2493 spin_lock_irqsave(&adapter
->stats_lock
, irq_flags
);
2496 * these counters are modified from e1000_adjust_tbi_stats,
2497 * called from the interrupt context, so they must only
2498 * be written while holding adapter->stats_lock
2501 adapter
->stats
.crcerrs
+= er32(CRCERRS
);
2502 adapter
->stats
.gprc
+= er32(GPRC
);
2503 adapter
->stats
.gorcl
+= er32(GORCL
);
2504 adapter
->stats
.gorch
+= er32(GORCH
);
2505 adapter
->stats
.bprc
+= er32(BPRC
);
2506 adapter
->stats
.mprc
+= er32(MPRC
);
2507 adapter
->stats
.roc
+= er32(ROC
);
2509 if (adapter
->flags
& FLAG_HAS_STATS_PTC_PRC
) {
2510 adapter
->stats
.prc64
+= er32(PRC64
);
2511 adapter
->stats
.prc127
+= er32(PRC127
);
2512 adapter
->stats
.prc255
+= er32(PRC255
);
2513 adapter
->stats
.prc511
+= er32(PRC511
);
2514 adapter
->stats
.prc1023
+= er32(PRC1023
);
2515 adapter
->stats
.prc1522
+= er32(PRC1522
);
2516 adapter
->stats
.symerrs
+= er32(SYMERRS
);
2517 adapter
->stats
.sec
+= er32(SEC
);
2520 adapter
->stats
.mpc
+= er32(MPC
);
2521 adapter
->stats
.scc
+= er32(SCC
);
2522 adapter
->stats
.ecol
+= er32(ECOL
);
2523 adapter
->stats
.mcc
+= er32(MCC
);
2524 adapter
->stats
.latecol
+= er32(LATECOL
);
2525 adapter
->stats
.dc
+= er32(DC
);
2526 adapter
->stats
.rlec
+= er32(RLEC
);
2527 adapter
->stats
.xonrxc
+= er32(XONRXC
);
2528 adapter
->stats
.xontxc
+= er32(XONTXC
);
2529 adapter
->stats
.xoffrxc
+= er32(XOFFRXC
);
2530 adapter
->stats
.xofftxc
+= er32(XOFFTXC
);
2531 adapter
->stats
.fcruc
+= er32(FCRUC
);
2532 adapter
->stats
.gptc
+= er32(GPTC
);
2533 adapter
->stats
.gotcl
+= er32(GOTCL
);
2534 adapter
->stats
.gotch
+= er32(GOTCH
);
2535 adapter
->stats
.rnbc
+= er32(RNBC
);
2536 adapter
->stats
.ruc
+= er32(RUC
);
2537 adapter
->stats
.rfc
+= er32(RFC
);
2538 adapter
->stats
.rjc
+= er32(RJC
);
2539 adapter
->stats
.torl
+= er32(TORL
);
2540 adapter
->stats
.torh
+= er32(TORH
);
2541 adapter
->stats
.totl
+= er32(TOTL
);
2542 adapter
->stats
.toth
+= er32(TOTH
);
2543 adapter
->stats
.tpr
+= er32(TPR
);
2545 if (adapter
->flags
& FLAG_HAS_STATS_PTC_PRC
) {
2546 adapter
->stats
.ptc64
+= er32(PTC64
);
2547 adapter
->stats
.ptc127
+= er32(PTC127
);
2548 adapter
->stats
.ptc255
+= er32(PTC255
);
2549 adapter
->stats
.ptc511
+= er32(PTC511
);
2550 adapter
->stats
.ptc1023
+= er32(PTC1023
);
2551 adapter
->stats
.ptc1522
+= er32(PTC1522
);
2554 adapter
->stats
.mptc
+= er32(MPTC
);
2555 adapter
->stats
.bptc
+= er32(BPTC
);
2557 /* used for adaptive IFS */
2559 hw
->mac
.tx_packet_delta
= er32(TPT
);
2560 adapter
->stats
.tpt
+= hw
->mac
.tx_packet_delta
;
2561 hw
->mac
.collision_delta
= er32(COLC
);
2562 adapter
->stats
.colc
+= hw
->mac
.collision_delta
;
2564 adapter
->stats
.algnerrc
+= er32(ALGNERRC
);
2565 adapter
->stats
.rxerrc
+= er32(RXERRC
);
2566 adapter
->stats
.tncrs
+= er32(TNCRS
);
2567 adapter
->stats
.cexterr
+= er32(CEXTERR
);
2568 adapter
->stats
.tsctc
+= er32(TSCTC
);
2569 adapter
->stats
.tsctfc
+= er32(TSCTFC
);
2571 adapter
->stats
.iac
+= er32(IAC
);
2573 if (adapter
->flags
& FLAG_HAS_STATS_ICR_ICT
) {
2574 adapter
->stats
.icrxoc
+= er32(ICRXOC
);
2575 adapter
->stats
.icrxptc
+= er32(ICRXPTC
);
2576 adapter
->stats
.icrxatc
+= er32(ICRXATC
);
2577 adapter
->stats
.ictxptc
+= er32(ICTXPTC
);
2578 adapter
->stats
.ictxatc
+= er32(ICTXATC
);
2579 adapter
->stats
.ictxqec
+= er32(ICTXQEC
);
2580 adapter
->stats
.ictxqmtc
+= er32(ICTXQMTC
);
2581 adapter
->stats
.icrxdmtc
+= er32(ICRXDMTC
);
2584 /* Fill out the OS statistics structure */
2585 adapter
->net_stats
.multicast
= adapter
->stats
.mprc
;
2586 adapter
->net_stats
.collisions
= adapter
->stats
.colc
;
2591 * RLEC on some newer hardware can be incorrect so build
2592 * our own version based on RUC and ROC
2594 adapter
->net_stats
.rx_errors
= adapter
->stats
.rxerrc
+
2595 adapter
->stats
.crcerrs
+ adapter
->stats
.algnerrc
+
2596 adapter
->stats
.ruc
+ adapter
->stats
.roc
+
2597 adapter
->stats
.cexterr
;
2598 adapter
->net_stats
.rx_length_errors
= adapter
->stats
.ruc
+
2600 adapter
->net_stats
.rx_crc_errors
= adapter
->stats
.crcerrs
;
2601 adapter
->net_stats
.rx_frame_errors
= adapter
->stats
.algnerrc
;
2602 adapter
->net_stats
.rx_missed_errors
= adapter
->stats
.mpc
;
2605 adapter
->net_stats
.tx_errors
= adapter
->stats
.ecol
+
2606 adapter
->stats
.latecol
;
2607 adapter
->net_stats
.tx_aborted_errors
= adapter
->stats
.ecol
;
2608 adapter
->net_stats
.tx_window_errors
= adapter
->stats
.latecol
;
2609 adapter
->net_stats
.tx_carrier_errors
= adapter
->stats
.tncrs
;
2611 /* Tx Dropped needs to be maintained elsewhere */
2614 if (hw
->media_type
== e1000_media_type_copper
) {
2615 if ((adapter
->link_speed
== SPEED_1000
) &&
2616 (!e1e_rphy(hw
, PHY_1000T_STATUS
, &phy_tmp
))) {
2617 phy_tmp
&= PHY_IDLE_ERROR_COUNT_MASK
;
2618 adapter
->phy_stats
.idle_errors
+= phy_tmp
;
2622 /* Management Stats */
2623 adapter
->stats
.mgptc
+= er32(MGTPTC
);
2624 adapter
->stats
.mgprc
+= er32(MGTPRC
);
2625 adapter
->stats
.mgpdc
+= er32(MGTPDC
);
2627 spin_unlock_irqrestore(&adapter
->stats_lock
, irq_flags
);
2630 static void e1000_print_link_info(struct e1000_adapter
*adapter
)
2632 struct net_device
*netdev
= adapter
->netdev
;
2633 struct e1000_hw
*hw
= &adapter
->hw
;
2634 u32 ctrl
= er32(CTRL
);
2637 "Link is Up %d Mbps %s, Flow Control: %s\n",
2638 adapter
->link_speed
,
2639 (adapter
->link_duplex
== FULL_DUPLEX
) ?
2640 "Full Duplex" : "Half Duplex",
2641 ((ctrl
& E1000_CTRL_TFCE
) && (ctrl
& E1000_CTRL_RFCE
)) ?
2643 ((ctrl
& E1000_CTRL_RFCE
) ? "RX" :
2644 ((ctrl
& E1000_CTRL_TFCE
) ? "TX" : "None" )));
2648 * e1000_watchdog - Timer Call-back
2649 * @data: pointer to adapter cast into an unsigned long
2651 static void e1000_watchdog(unsigned long data
)
2653 struct e1000_adapter
*adapter
= (struct e1000_adapter
*) data
;
2655 /* Do the rest outside of interrupt context */
2656 schedule_work(&adapter
->watchdog_task
);
2658 /* TODO: make this use queue_delayed_work() */
2661 static void e1000_watchdog_task(struct work_struct
*work
)
2663 struct e1000_adapter
*adapter
= container_of(work
,
2664 struct e1000_adapter
, watchdog_task
);
2666 struct net_device
*netdev
= adapter
->netdev
;
2667 struct e1000_mac_info
*mac
= &adapter
->hw
.mac
;
2668 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
2669 struct e1000_hw
*hw
= &adapter
->hw
;
2674 if ((netif_carrier_ok(netdev
)) &&
2675 (er32(STATUS
) & E1000_STATUS_LU
))
2678 ret_val
= mac
->ops
.check_for_link(hw
);
2679 if ((ret_val
== E1000_ERR_PHY
) &&
2680 (adapter
->hw
.phy
.type
== e1000_phy_igp_3
) &&
2682 E1000_PHY_CTRL_GBE_DISABLE
)) {
2683 /* See e1000_kmrn_lock_loss_workaround_ich8lan() */
2685 "Gigabit has been disabled, downgrading speed\n");
2688 if ((e1000e_enable_tx_pkt_filtering(hw
)) &&
2689 (adapter
->mng_vlan_id
!= adapter
->hw
.mng_cookie
.vlan_id
))
2690 e1000_update_mng_vlan(adapter
);
2692 if ((adapter
->hw
.media_type
== e1000_media_type_internal_serdes
) &&
2693 !(er32(TXCW
) & E1000_TXCW_ANE
))
2694 link
= adapter
->hw
.mac
.serdes_has_link
;
2696 link
= er32(STATUS
) & E1000_STATUS_LU
;
2699 if (!netif_carrier_ok(netdev
)) {
2701 mac
->ops
.get_link_up_info(&adapter
->hw
,
2702 &adapter
->link_speed
,
2703 &adapter
->link_duplex
);
2704 e1000_print_link_info(adapter
);
2706 * tweak tx_queue_len according to speed/duplex
2707 * and adjust the timeout factor
2709 netdev
->tx_queue_len
= adapter
->tx_queue_len
;
2710 adapter
->tx_timeout_factor
= 1;
2711 switch (adapter
->link_speed
) {
2714 netdev
->tx_queue_len
= 10;
2715 adapter
->tx_timeout_factor
= 14;
2719 netdev
->tx_queue_len
= 100;
2720 /* maybe add some timeout factor ? */
2725 * workaround: re-program speed mode bit after
2728 if ((adapter
->flags
& FLAG_TARC_SPEED_MODE_BIT
) &&
2731 tarc0
= er32(TARC0
);
2732 tarc0
&= ~SPEED_MODE_BIT
;
2737 * disable TSO for pcie and 10/100 speeds, to avoid
2738 * some hardware issues
2740 if (!(adapter
->flags
& FLAG_TSO_FORCE
)) {
2741 switch (adapter
->link_speed
) {
2745 "10/100 speed: disabling TSO\n");
2746 netdev
->features
&= ~NETIF_F_TSO
;
2747 netdev
->features
&= ~NETIF_F_TSO6
;
2750 netdev
->features
|= NETIF_F_TSO
;
2751 netdev
->features
|= NETIF_F_TSO6
;
2760 * enable transmits in the hardware, need to do this
2761 * after setting TARC(0)
2764 tctl
|= E1000_TCTL_EN
;
2767 netif_carrier_on(netdev
);
2768 netif_wake_queue(netdev
);
2770 if (!test_bit(__E1000_DOWN
, &adapter
->state
))
2771 mod_timer(&adapter
->phy_info_timer
,
2772 round_jiffies(jiffies
+ 2 * HZ
));
2774 /* make sure the receive unit is started */
2775 if (adapter
->flags
& FLAG_RX_NEEDS_RESTART
) {
2776 u32 rctl
= er32(RCTL
);
2782 if (netif_carrier_ok(netdev
)) {
2783 adapter
->link_speed
= 0;
2784 adapter
->link_duplex
= 0;
2785 ndev_info(netdev
, "Link is Down\n");
2786 netif_carrier_off(netdev
);
2787 netif_stop_queue(netdev
);
2788 if (!test_bit(__E1000_DOWN
, &adapter
->state
))
2789 mod_timer(&adapter
->phy_info_timer
,
2790 round_jiffies(jiffies
+ 2 * HZ
));
2792 if (adapter
->flags
& FLAG_RX_NEEDS_RESTART
)
2793 schedule_work(&adapter
->reset_task
);
2798 e1000e_update_stats(adapter
);
2800 mac
->tx_packet_delta
= adapter
->stats
.tpt
- adapter
->tpt_old
;
2801 adapter
->tpt_old
= adapter
->stats
.tpt
;
2802 mac
->collision_delta
= adapter
->stats
.colc
- adapter
->colc_old
;
2803 adapter
->colc_old
= adapter
->stats
.colc
;
2805 adapter
->gorcl
= adapter
->stats
.gorcl
- adapter
->gorcl_old
;
2806 adapter
->gorcl_old
= adapter
->stats
.gorcl
;
2807 adapter
->gotcl
= adapter
->stats
.gotcl
- adapter
->gotcl_old
;
2808 adapter
->gotcl_old
= adapter
->stats
.gotcl
;
2810 e1000e_update_adaptive(&adapter
->hw
);
2812 if (!netif_carrier_ok(netdev
)) {
2813 tx_pending
= (e1000_desc_unused(tx_ring
) + 1 <
2817 * We've lost link, so the controller stops DMA,
2818 * but we've got queued Tx work that's never going
2819 * to get done, so reset controller to flush Tx.
2820 * (Do the reset outside of interrupt context).
2822 adapter
->tx_timeout_count
++;
2823 schedule_work(&adapter
->reset_task
);
2827 /* Cause software interrupt to ensure Rx ring is cleaned */
2828 ew32(ICS
, E1000_ICS_RXDMT0
);
2830 /* Force detection of hung controller every watchdog period */
2831 adapter
->detect_tx_hung
= 1;
2834 * With 82571 controllers, LAA may be overwritten due to controller
2835 * reset from the other port. Set the appropriate LAA in RAR[0]
2837 if (e1000e_get_laa_state_82571(hw
))
2838 e1000e_rar_set(hw
, adapter
->hw
.mac
.addr
, 0);
2840 /* Reset the timer */
2841 if (!test_bit(__E1000_DOWN
, &adapter
->state
))
2842 mod_timer(&adapter
->watchdog_timer
,
2843 round_jiffies(jiffies
+ 2 * HZ
));
2846 #define E1000_TX_FLAGS_CSUM 0x00000001
2847 #define E1000_TX_FLAGS_VLAN 0x00000002
2848 #define E1000_TX_FLAGS_TSO 0x00000004
2849 #define E1000_TX_FLAGS_IPV4 0x00000008
2850 #define E1000_TX_FLAGS_VLAN_MASK 0xffff0000
2851 #define E1000_TX_FLAGS_VLAN_SHIFT 16
2853 static int e1000_tso(struct e1000_adapter
*adapter
,
2854 struct sk_buff
*skb
)
2856 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
2857 struct e1000_context_desc
*context_desc
;
2858 struct e1000_buffer
*buffer_info
;
2861 u16 ipcse
= 0, tucse
, mss
;
2862 u8 ipcss
, ipcso
, tucss
, tucso
, hdr_len
;
2865 if (skb_is_gso(skb
)) {
2866 if (skb_header_cloned(skb
)) {
2867 err
= pskb_expand_head(skb
, 0, 0, GFP_ATOMIC
);
2872 hdr_len
= skb_transport_offset(skb
) + tcp_hdrlen(skb
);
2873 mss
= skb_shinfo(skb
)->gso_size
;
2874 if (skb
->protocol
== htons(ETH_P_IP
)) {
2875 struct iphdr
*iph
= ip_hdr(skb
);
2878 tcp_hdr(skb
)->check
= ~csum_tcpudp_magic(iph
->saddr
,
2882 cmd_length
= E1000_TXD_CMD_IP
;
2883 ipcse
= skb_transport_offset(skb
) - 1;
2884 } else if (skb_shinfo(skb
)->gso_type
== SKB_GSO_TCPV6
) {
2885 ipv6_hdr(skb
)->payload_len
= 0;
2886 tcp_hdr(skb
)->check
=
2887 ~csum_ipv6_magic(&ipv6_hdr(skb
)->saddr
,
2888 &ipv6_hdr(skb
)->daddr
,
2892 ipcss
= skb_network_offset(skb
);
2893 ipcso
= (void *)&(ip_hdr(skb
)->check
) - (void *)skb
->data
;
2894 tucss
= skb_transport_offset(skb
);
2895 tucso
= (void *)&(tcp_hdr(skb
)->check
) - (void *)skb
->data
;
2898 cmd_length
|= (E1000_TXD_CMD_DEXT
| E1000_TXD_CMD_TSE
|
2899 E1000_TXD_CMD_TCP
| (skb
->len
- (hdr_len
)));
2901 i
= tx_ring
->next_to_use
;
2902 context_desc
= E1000_CONTEXT_DESC(*tx_ring
, i
);
2903 buffer_info
= &tx_ring
->buffer_info
[i
];
2905 context_desc
->lower_setup
.ip_fields
.ipcss
= ipcss
;
2906 context_desc
->lower_setup
.ip_fields
.ipcso
= ipcso
;
2907 context_desc
->lower_setup
.ip_fields
.ipcse
= cpu_to_le16(ipcse
);
2908 context_desc
->upper_setup
.tcp_fields
.tucss
= tucss
;
2909 context_desc
->upper_setup
.tcp_fields
.tucso
= tucso
;
2910 context_desc
->upper_setup
.tcp_fields
.tucse
= cpu_to_le16(tucse
);
2911 context_desc
->tcp_seg_setup
.fields
.mss
= cpu_to_le16(mss
);
2912 context_desc
->tcp_seg_setup
.fields
.hdr_len
= hdr_len
;
2913 context_desc
->cmd_and_length
= cpu_to_le32(cmd_length
);
2915 buffer_info
->time_stamp
= jiffies
;
2916 buffer_info
->next_to_watch
= i
;
2919 if (i
== tx_ring
->count
)
2921 tx_ring
->next_to_use
= i
;
2929 static bool e1000_tx_csum(struct e1000_adapter
*adapter
, struct sk_buff
*skb
)
2931 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
2932 struct e1000_context_desc
*context_desc
;
2933 struct e1000_buffer
*buffer_info
;
2937 if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
2938 css
= skb_transport_offset(skb
);
2940 i
= tx_ring
->next_to_use
;
2941 buffer_info
= &tx_ring
->buffer_info
[i
];
2942 context_desc
= E1000_CONTEXT_DESC(*tx_ring
, i
);
2944 context_desc
->lower_setup
.ip_config
= 0;
2945 context_desc
->upper_setup
.tcp_fields
.tucss
= css
;
2946 context_desc
->upper_setup
.tcp_fields
.tucso
=
2947 css
+ skb
->csum_offset
;
2948 context_desc
->upper_setup
.tcp_fields
.tucse
= 0;
2949 context_desc
->tcp_seg_setup
.data
= 0;
2950 context_desc
->cmd_and_length
= cpu_to_le32(E1000_TXD_CMD_DEXT
);
2952 buffer_info
->time_stamp
= jiffies
;
2953 buffer_info
->next_to_watch
= i
;
2956 if (i
== tx_ring
->count
)
2958 tx_ring
->next_to_use
= i
;
2966 #define E1000_MAX_PER_TXD 8192
2967 #define E1000_MAX_TXD_PWR 12
2969 static int e1000_tx_map(struct e1000_adapter
*adapter
,
2970 struct sk_buff
*skb
, unsigned int first
,
2971 unsigned int max_per_txd
, unsigned int nr_frags
,
2974 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
2975 struct e1000_buffer
*buffer_info
;
2976 unsigned int len
= skb
->len
- skb
->data_len
;
2977 unsigned int offset
= 0, size
, count
= 0, i
;
2980 i
= tx_ring
->next_to_use
;
2983 buffer_info
= &tx_ring
->buffer_info
[i
];
2984 size
= min(len
, max_per_txd
);
2986 /* Workaround for premature desc write-backs
2987 * in TSO mode. Append 4-byte sentinel desc */
2988 if (mss
&& !nr_frags
&& size
== len
&& size
> 8)
2991 buffer_info
->length
= size
;
2992 /* set time_stamp *before* dma to help avoid a possible race */
2993 buffer_info
->time_stamp
= jiffies
;
2995 pci_map_single(adapter
->pdev
,
2999 if (pci_dma_mapping_error(buffer_info
->dma
)) {
3000 dev_err(&adapter
->pdev
->dev
, "TX DMA map failed\n");
3001 adapter
->tx_dma_failed
++;
3004 buffer_info
->next_to_watch
= i
;
3010 if (i
== tx_ring
->count
)
3014 for (f
= 0; f
< nr_frags
; f
++) {
3015 struct skb_frag_struct
*frag
;
3017 frag
= &skb_shinfo(skb
)->frags
[f
];
3019 offset
= frag
->page_offset
;
3022 buffer_info
= &tx_ring
->buffer_info
[i
];
3023 size
= min(len
, max_per_txd
);
3024 /* Workaround for premature desc write-backs
3025 * in TSO mode. Append 4-byte sentinel desc */
3026 if (mss
&& f
== (nr_frags
-1) && size
== len
&& size
> 8)
3029 buffer_info
->length
= size
;
3030 buffer_info
->time_stamp
= jiffies
;
3032 pci_map_page(adapter
->pdev
,
3037 if (pci_dma_mapping_error(buffer_info
->dma
)) {
3038 dev_err(&adapter
->pdev
->dev
,
3039 "TX DMA page map failed\n");
3040 adapter
->tx_dma_failed
++;
3044 buffer_info
->next_to_watch
= i
;
3051 if (i
== tx_ring
->count
)
3057 i
= tx_ring
->count
- 1;
3061 tx_ring
->buffer_info
[i
].skb
= skb
;
3062 tx_ring
->buffer_info
[first
].next_to_watch
= i
;
3067 static void e1000_tx_queue(struct e1000_adapter
*adapter
,
3068 int tx_flags
, int count
)
3070 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
3071 struct e1000_tx_desc
*tx_desc
= NULL
;
3072 struct e1000_buffer
*buffer_info
;
3073 u32 txd_upper
= 0, txd_lower
= E1000_TXD_CMD_IFCS
;
3076 if (tx_flags
& E1000_TX_FLAGS_TSO
) {
3077 txd_lower
|= E1000_TXD_CMD_DEXT
| E1000_TXD_DTYP_D
|
3079 txd_upper
|= E1000_TXD_POPTS_TXSM
<< 8;
3081 if (tx_flags
& E1000_TX_FLAGS_IPV4
)
3082 txd_upper
|= E1000_TXD_POPTS_IXSM
<< 8;
3085 if (tx_flags
& E1000_TX_FLAGS_CSUM
) {
3086 txd_lower
|= E1000_TXD_CMD_DEXT
| E1000_TXD_DTYP_D
;
3087 txd_upper
|= E1000_TXD_POPTS_TXSM
<< 8;
3090 if (tx_flags
& E1000_TX_FLAGS_VLAN
) {
3091 txd_lower
|= E1000_TXD_CMD_VLE
;
3092 txd_upper
|= (tx_flags
& E1000_TX_FLAGS_VLAN_MASK
);
3095 i
= tx_ring
->next_to_use
;
3098 buffer_info
= &tx_ring
->buffer_info
[i
];
3099 tx_desc
= E1000_TX_DESC(*tx_ring
, i
);
3100 tx_desc
->buffer_addr
= cpu_to_le64(buffer_info
->dma
);
3101 tx_desc
->lower
.data
=
3102 cpu_to_le32(txd_lower
| buffer_info
->length
);
3103 tx_desc
->upper
.data
= cpu_to_le32(txd_upper
);
3106 if (i
== tx_ring
->count
)
3110 tx_desc
->lower
.data
|= cpu_to_le32(adapter
->txd_cmd
);
3113 * Force memory writes to complete before letting h/w
3114 * know there are new descriptors to fetch. (Only
3115 * applicable for weak-ordered memory model archs,
3120 tx_ring
->next_to_use
= i
;
3121 writel(i
, adapter
->hw
.hw_addr
+ tx_ring
->tail
);
3123 * we need this if more than one processor can write to our tail
3124 * at a time, it synchronizes IO on IA64/Altix systems
3129 #define MINIMUM_DHCP_PACKET_SIZE 282
3130 static int e1000_transfer_dhcp_info(struct e1000_adapter
*adapter
,
3131 struct sk_buff
*skb
)
3133 struct e1000_hw
*hw
= &adapter
->hw
;
3136 if (vlan_tx_tag_present(skb
)) {
3137 if (!((vlan_tx_tag_get(skb
) == adapter
->hw
.mng_cookie
.vlan_id
)
3138 && (adapter
->hw
.mng_cookie
.status
&
3139 E1000_MNG_DHCP_COOKIE_STATUS_VLAN
)))
3143 if (skb
->len
<= MINIMUM_DHCP_PACKET_SIZE
)
3146 if (((struct ethhdr
*) skb
->data
)->h_proto
!= htons(ETH_P_IP
))
3150 const struct iphdr
*ip
= (struct iphdr
*)((u8
*)skb
->data
+14);
3153 if (ip
->protocol
!= IPPROTO_UDP
)
3156 udp
= (struct udphdr
*)((u8
*)ip
+ (ip
->ihl
<< 2));
3157 if (ntohs(udp
->dest
) != 67)
3160 offset
= (u8
*)udp
+ 8 - skb
->data
;
3161 length
= skb
->len
- offset
;
3162 return e1000e_mng_write_dhcp_info(hw
, (u8
*)udp
+ 8, length
);
3168 static int __e1000_maybe_stop_tx(struct net_device
*netdev
, int size
)
3170 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3172 netif_stop_queue(netdev
);
3174 * Herbert's original patch had:
3175 * smp_mb__after_netif_stop_queue();
3176 * but since that doesn't exist yet, just open code it.
3181 * We need to check again in a case another CPU has just
3182 * made room available.
3184 if (e1000_desc_unused(adapter
->tx_ring
) < size
)
3188 netif_start_queue(netdev
);
3189 ++adapter
->restart_queue
;
3193 static int e1000_maybe_stop_tx(struct net_device
*netdev
, int size
)
3195 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3197 if (e1000_desc_unused(adapter
->tx_ring
) >= size
)
3199 return __e1000_maybe_stop_tx(netdev
, size
);
3202 #define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 )
3203 static int e1000_xmit_frame(struct sk_buff
*skb
, struct net_device
*netdev
)
3205 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3206 struct e1000_ring
*tx_ring
= adapter
->tx_ring
;
3208 unsigned int max_per_txd
= E1000_MAX_PER_TXD
;
3209 unsigned int max_txd_pwr
= E1000_MAX_TXD_PWR
;
3210 unsigned int tx_flags
= 0;
3211 unsigned int len
= skb
->len
- skb
->data_len
;
3212 unsigned long irq_flags
;
3213 unsigned int nr_frags
;
3219 if (test_bit(__E1000_DOWN
, &adapter
->state
)) {
3220 dev_kfree_skb_any(skb
);
3221 return NETDEV_TX_OK
;
3224 if (skb
->len
<= 0) {
3225 dev_kfree_skb_any(skb
);
3226 return NETDEV_TX_OK
;
3229 mss
= skb_shinfo(skb
)->gso_size
;
3231 * The controller does a simple calculation to
3232 * make sure there is enough room in the FIFO before
3233 * initiating the DMA for each buffer. The calc is:
3234 * 4 = ceil(buffer len/mss). To make sure we don't
3235 * overrun the FIFO, adjust the max buffer len if mss
3240 max_per_txd
= min(mss
<< 2, max_per_txd
);
3241 max_txd_pwr
= fls(max_per_txd
) - 1;
3244 * TSO Workaround for 82571/2/3 Controllers -- if skb->data
3245 * points to just header, pull a few bytes of payload from
3246 * frags into skb->data
3248 hdr_len
= skb_transport_offset(skb
) + tcp_hdrlen(skb
);
3250 * we do this workaround for ES2LAN, but it is un-necessary,
3251 * avoiding it could save a lot of cycles
3253 if (skb
->data_len
&& (hdr_len
== len
)) {
3254 unsigned int pull_size
;
3256 pull_size
= min((unsigned int)4, skb
->data_len
);
3257 if (!__pskb_pull_tail(skb
, pull_size
)) {
3259 "__pskb_pull_tail failed.\n");
3260 dev_kfree_skb_any(skb
);
3261 return NETDEV_TX_OK
;
3263 len
= skb
->len
- skb
->data_len
;
3267 /* reserve a descriptor for the offload context */
3268 if ((mss
) || (skb
->ip_summed
== CHECKSUM_PARTIAL
))
3272 count
+= TXD_USE_COUNT(len
, max_txd_pwr
);
3274 nr_frags
= skb_shinfo(skb
)->nr_frags
;
3275 for (f
= 0; f
< nr_frags
; f
++)
3276 count
+= TXD_USE_COUNT(skb_shinfo(skb
)->frags
[f
].size
,
3279 if (adapter
->hw
.mac
.tx_pkt_filtering
)
3280 e1000_transfer_dhcp_info(adapter
, skb
);
3282 if (!spin_trylock_irqsave(&adapter
->tx_queue_lock
, irq_flags
))
3283 /* Collision - tell upper layer to requeue */
3284 return NETDEV_TX_LOCKED
;
3287 * need: count + 2 desc gap to keep tail from touching
3288 * head, otherwise try next time
3290 if (e1000_maybe_stop_tx(netdev
, count
+ 2)) {
3291 spin_unlock_irqrestore(&adapter
->tx_queue_lock
, irq_flags
);
3292 return NETDEV_TX_BUSY
;
3295 if (adapter
->vlgrp
&& vlan_tx_tag_present(skb
)) {
3296 tx_flags
|= E1000_TX_FLAGS_VLAN
;
3297 tx_flags
|= (vlan_tx_tag_get(skb
) << E1000_TX_FLAGS_VLAN_SHIFT
);
3300 first
= tx_ring
->next_to_use
;
3302 tso
= e1000_tso(adapter
, skb
);
3304 dev_kfree_skb_any(skb
);
3305 spin_unlock_irqrestore(&adapter
->tx_queue_lock
, irq_flags
);
3306 return NETDEV_TX_OK
;
3310 tx_flags
|= E1000_TX_FLAGS_TSO
;
3311 else if (e1000_tx_csum(adapter
, skb
))
3312 tx_flags
|= E1000_TX_FLAGS_CSUM
;
3315 * Old method was to assume IPv4 packet by default if TSO was enabled.
3316 * 82571 hardware supports TSO capabilities for IPv6 as well...
3317 * no longer assume, we must.
3319 if (skb
->protocol
== htons(ETH_P_IP
))
3320 tx_flags
|= E1000_TX_FLAGS_IPV4
;
3322 count
= e1000_tx_map(adapter
, skb
, first
, max_per_txd
, nr_frags
, mss
);
3324 /* handle pci_map_single() error in e1000_tx_map */
3325 dev_kfree_skb_any(skb
);
3326 spin_unlock_irqrestore(&adapter
->tx_queue_lock
, irq_flags
);
3327 return NETDEV_TX_OK
;
3330 e1000_tx_queue(adapter
, tx_flags
, count
);
3332 netdev
->trans_start
= jiffies
;
3334 /* Make sure there is space in the ring for the next send. */
3335 e1000_maybe_stop_tx(netdev
, MAX_SKB_FRAGS
+ 2);
3337 spin_unlock_irqrestore(&adapter
->tx_queue_lock
, irq_flags
);
3338 return NETDEV_TX_OK
;
3342 * e1000_tx_timeout - Respond to a Tx Hang
3343 * @netdev: network interface device structure
3345 static void e1000_tx_timeout(struct net_device
*netdev
)
3347 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3349 /* Do the reset outside of interrupt context */
3350 adapter
->tx_timeout_count
++;
3351 schedule_work(&adapter
->reset_task
);
3354 static void e1000_reset_task(struct work_struct
*work
)
3356 struct e1000_adapter
*adapter
;
3357 adapter
= container_of(work
, struct e1000_adapter
, reset_task
);
3359 e1000e_reinit_locked(adapter
);
3363 * e1000_get_stats - Get System Network Statistics
3364 * @netdev: network interface device structure
3366 * Returns the address of the device statistics structure.
3367 * The statistics are actually updated from the timer callback.
3369 static struct net_device_stats
*e1000_get_stats(struct net_device
*netdev
)
3371 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3373 /* only return the current stats */
3374 return &adapter
->net_stats
;
3378 * e1000_change_mtu - Change the Maximum Transfer Unit
3379 * @netdev: network interface device structure
3380 * @new_mtu: new value for maximum frame size
3382 * Returns 0 on success, negative on failure
3384 static int e1000_change_mtu(struct net_device
*netdev
, int new_mtu
)
3386 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3387 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
;
3389 if ((max_frame
< ETH_ZLEN
+ ETH_FCS_LEN
) ||
3390 (max_frame
> MAX_JUMBO_FRAME_SIZE
)) {
3391 ndev_err(netdev
, "Invalid MTU setting\n");
3395 /* Jumbo frame size limits */
3396 if (max_frame
> ETH_FRAME_LEN
+ ETH_FCS_LEN
) {
3397 if (!(adapter
->flags
& FLAG_HAS_JUMBO_FRAMES
)) {
3398 ndev_err(netdev
, "Jumbo Frames not supported.\n");
3401 if (adapter
->hw
.phy
.type
== e1000_phy_ife
) {
3402 ndev_err(netdev
, "Jumbo Frames not supported.\n");
3407 #define MAX_STD_JUMBO_FRAME_SIZE 9234
3408 if (max_frame
> MAX_STD_JUMBO_FRAME_SIZE
) {
3409 ndev_err(netdev
, "MTU > 9216 not supported.\n");
3413 while (test_and_set_bit(__E1000_RESETTING
, &adapter
->state
))
3415 /* e1000e_down has a dependency on max_frame_size */
3416 adapter
->hw
.mac
.max_frame_size
= max_frame
;
3417 if (netif_running(netdev
))
3418 e1000e_down(adapter
);
3421 * NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
3422 * means we reserve 2 more, this pushes us to allocate from the next
3424 * i.e. RXBUFFER_2048 --> size-4096 slab
3427 if (max_frame
<= 256)
3428 adapter
->rx_buffer_len
= 256;
3429 else if (max_frame
<= 512)
3430 adapter
->rx_buffer_len
= 512;
3431 else if (max_frame
<= 1024)
3432 adapter
->rx_buffer_len
= 1024;
3433 else if (max_frame
<= 2048)
3434 adapter
->rx_buffer_len
= 2048;
3436 adapter
->rx_buffer_len
= 4096;
3438 /* adjust allocation if LPE protects us, and we aren't using SBP */
3439 if ((max_frame
== ETH_FRAME_LEN
+ ETH_FCS_LEN
) ||
3440 (max_frame
== ETH_FRAME_LEN
+ VLAN_HLEN
+ ETH_FCS_LEN
))
3441 adapter
->rx_buffer_len
= ETH_FRAME_LEN
+ VLAN_HLEN
3444 ndev_info(netdev
, "changing MTU from %d to %d\n",
3445 netdev
->mtu
, new_mtu
);
3446 netdev
->mtu
= new_mtu
;
3448 if (netif_running(netdev
))
3451 e1000e_reset(adapter
);
3453 clear_bit(__E1000_RESETTING
, &adapter
->state
);
3458 static int e1000_mii_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
,
3461 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3462 struct mii_ioctl_data
*data
= if_mii(ifr
);
3463 unsigned long irq_flags
;
3465 if (adapter
->hw
.media_type
!= e1000_media_type_copper
)
3470 data
->phy_id
= adapter
->hw
.phy
.addr
;
3473 if (!capable(CAP_NET_ADMIN
))
3475 spin_lock_irqsave(&adapter
->stats_lock
, irq_flags
);
3476 if (e1e_rphy(&adapter
->hw
, data
->reg_num
& 0x1F,
3478 spin_unlock_irqrestore(&adapter
->stats_lock
, irq_flags
);
3481 spin_unlock_irqrestore(&adapter
->stats_lock
, irq_flags
);
3490 static int e1000_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
3496 return e1000_mii_ioctl(netdev
, ifr
, cmd
);
3502 static int e1000_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3504 struct net_device
*netdev
= pci_get_drvdata(pdev
);
3505 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3506 struct e1000_hw
*hw
= &adapter
->hw
;
3507 u32 ctrl
, ctrl_ext
, rctl
, status
;
3508 u32 wufc
= adapter
->wol
;
3511 netif_device_detach(netdev
);
3513 if (netif_running(netdev
)) {
3514 WARN_ON(test_bit(__E1000_RESETTING
, &adapter
->state
));
3515 e1000e_down(adapter
);
3516 e1000_free_irq(adapter
);
3519 retval
= pci_save_state(pdev
);
3523 status
= er32(STATUS
);
3524 if (status
& E1000_STATUS_LU
)
3525 wufc
&= ~E1000_WUFC_LNKC
;
3528 e1000_setup_rctl(adapter
);
3529 e1000_set_multi(netdev
);
3531 /* turn on all-multi mode if wake on multicast is enabled */
3532 if (wufc
& E1000_WUFC_MC
) {
3534 rctl
|= E1000_RCTL_MPE
;
3539 /* advertise wake from D3Cold */
3540 #define E1000_CTRL_ADVD3WUC 0x00100000
3541 /* phy power management enable */
3542 #define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000
3543 ctrl
|= E1000_CTRL_ADVD3WUC
|
3544 E1000_CTRL_EN_PHY_PWR_MGMT
;
3547 if (adapter
->hw
.media_type
== e1000_media_type_fiber
||
3548 adapter
->hw
.media_type
== e1000_media_type_internal_serdes
) {
3549 /* keep the laser running in D3 */
3550 ctrl_ext
= er32(CTRL_EXT
);
3551 ctrl_ext
|= E1000_CTRL_EXT_SDP7_DATA
;
3552 ew32(CTRL_EXT
, ctrl_ext
);
3555 /* Allow time for pending master requests to run */
3556 e1000e_disable_pcie_master(&adapter
->hw
);
3558 ew32(WUC
, E1000_WUC_PME_EN
);
3560 pci_enable_wake(pdev
, PCI_D3hot
, 1);
3561 pci_enable_wake(pdev
, PCI_D3cold
, 1);
3565 pci_enable_wake(pdev
, PCI_D3hot
, 0);
3566 pci_enable_wake(pdev
, PCI_D3cold
, 0);
3569 /* make sure adapter isn't asleep if manageability is enabled */
3570 if (adapter
->flags
& FLAG_MNG_PT_ENABLED
) {
3571 pci_enable_wake(pdev
, PCI_D3hot
, 1);
3572 pci_enable_wake(pdev
, PCI_D3cold
, 1);
3575 if (adapter
->hw
.phy
.type
== e1000_phy_igp_3
)
3576 e1000e_igp3_phy_powerdown_workaround_ich8lan(&adapter
->hw
);
3579 * Release control of h/w to f/w. If f/w is AMT enabled, this
3580 * would have already happened in close and is redundant.
3582 e1000_release_hw_control(adapter
);
3584 pci_disable_device(pdev
);
3586 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
3591 static void e1000e_disable_l1aspm(struct pci_dev
*pdev
)
3597 * 82573 workaround - disable L1 ASPM on mobile chipsets
3599 * L1 ASPM on various mobile (ich7) chipsets do not behave properly
3600 * resulting in lost data or garbage information on the pci-e link
3601 * level. This could result in (false) bad EEPROM checksum errors,
3602 * long ping times (up to 2s) or even a system freeze/hang.
3604 * Unfortunately this feature saves about 1W power consumption when
3607 pos
= pci_find_capability(pdev
, PCI_CAP_ID_EXP
);
3608 pci_read_config_word(pdev
, pos
+ PCI_EXP_LNKCTL
, &val
);
3610 dev_warn(&pdev
->dev
, "Disabling L1 ASPM\n");
3612 pci_write_config_word(pdev
, pos
+ PCI_EXP_LNKCTL
, val
);
3617 static int e1000_resume(struct pci_dev
*pdev
)
3619 struct net_device
*netdev
= pci_get_drvdata(pdev
);
3620 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3621 struct e1000_hw
*hw
= &adapter
->hw
;
3624 pci_set_power_state(pdev
, PCI_D0
);
3625 pci_restore_state(pdev
);
3626 e1000e_disable_l1aspm(pdev
);
3627 err
= pci_enable_device(pdev
);
3630 "Cannot enable PCI device from suspend\n");
3634 pci_set_master(pdev
);
3636 pci_enable_wake(pdev
, PCI_D3hot
, 0);
3637 pci_enable_wake(pdev
, PCI_D3cold
, 0);
3639 if (netif_running(netdev
)) {
3640 err
= e1000_request_irq(adapter
);
3645 e1000e_power_up_phy(adapter
);
3646 e1000e_reset(adapter
);
3649 e1000_init_manageability(adapter
);
3651 if (netif_running(netdev
))
3654 netif_device_attach(netdev
);
3657 * If the controller has AMT, do not set DRV_LOAD until the interface
3658 * is up. For all other cases, let the f/w know that the h/w is now
3659 * under the control of the driver.
3661 if (!(adapter
->flags
& FLAG_HAS_AMT
) || !e1000e_check_mng_mode(&adapter
->hw
))
3662 e1000_get_hw_control(adapter
);
3668 static void e1000_shutdown(struct pci_dev
*pdev
)
3670 e1000_suspend(pdev
, PMSG_SUSPEND
);
3673 #ifdef CONFIG_NET_POLL_CONTROLLER
3675 * Polling 'interrupt' - used by things like netconsole to send skbs
3676 * without having to re-enable interrupts. It's not called while
3677 * the interrupt routine is executing.
3679 static void e1000_netpoll(struct net_device
*netdev
)
3681 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3683 disable_irq(adapter
->pdev
->irq
);
3684 e1000_intr(adapter
->pdev
->irq
, netdev
);
3686 e1000_clean_tx_irq(adapter
);
3688 enable_irq(adapter
->pdev
->irq
);
3693 * e1000_io_error_detected - called when PCI error is detected
3694 * @pdev: Pointer to PCI device
3695 * @state: The current pci connection state
3697 * This function is called after a PCI bus error affecting
3698 * this device has been detected.
3700 static pci_ers_result_t
e1000_io_error_detected(struct pci_dev
*pdev
,
3701 pci_channel_state_t state
)
3703 struct net_device
*netdev
= pci_get_drvdata(pdev
);
3704 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3706 netif_device_detach(netdev
);
3708 if (netif_running(netdev
))
3709 e1000e_down(adapter
);
3710 pci_disable_device(pdev
);
3712 /* Request a slot slot reset. */
3713 return PCI_ERS_RESULT_NEED_RESET
;
3717 * e1000_io_slot_reset - called after the pci bus has been reset.
3718 * @pdev: Pointer to PCI device
3720 * Restart the card from scratch, as if from a cold-boot. Implementation
3721 * resembles the first-half of the e1000_resume routine.
3723 static pci_ers_result_t
e1000_io_slot_reset(struct pci_dev
*pdev
)
3725 struct net_device
*netdev
= pci_get_drvdata(pdev
);
3726 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3727 struct e1000_hw
*hw
= &adapter
->hw
;
3729 e1000e_disable_l1aspm(pdev
);
3730 if (pci_enable_device(pdev
)) {
3732 "Cannot re-enable PCI device after reset.\n");
3733 return PCI_ERS_RESULT_DISCONNECT
;
3735 pci_set_master(pdev
);
3737 pci_enable_wake(pdev
, PCI_D3hot
, 0);
3738 pci_enable_wake(pdev
, PCI_D3cold
, 0);
3740 e1000e_reset(adapter
);
3743 return PCI_ERS_RESULT_RECOVERED
;
3747 * e1000_io_resume - called when traffic can start flowing again.
3748 * @pdev: Pointer to PCI device
3750 * This callback is called when the error recovery driver tells us that
3751 * its OK to resume normal operation. Implementation resembles the
3752 * second-half of the e1000_resume routine.
3754 static void e1000_io_resume(struct pci_dev
*pdev
)
3756 struct net_device
*netdev
= pci_get_drvdata(pdev
);
3757 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
3759 e1000_init_manageability(adapter
);
3761 if (netif_running(netdev
)) {
3762 if (e1000e_up(adapter
)) {
3764 "can't bring device back up after reset\n");
3769 netif_device_attach(netdev
);
3772 * If the controller has AMT, do not set DRV_LOAD until the interface
3773 * is up. For all other cases, let the f/w know that the h/w is now
3774 * under the control of the driver.
3776 if (!(adapter
->flags
& FLAG_HAS_AMT
) ||
3777 !e1000e_check_mng_mode(&adapter
->hw
))
3778 e1000_get_hw_control(adapter
);
3782 static void e1000_print_device_info(struct e1000_adapter
*adapter
)
3784 struct e1000_hw
*hw
= &adapter
->hw
;
3785 struct net_device
*netdev
= adapter
->netdev
;
3788 /* print bus type/speed/width info */
3789 ndev_info(netdev
, "(PCI Express:2.5GB/s:%s) "
3790 "%02x:%02x:%02x:%02x:%02x:%02x\n",
3792 ((hw
->bus
.width
== e1000_bus_width_pcie_x4
) ? "Width x4" :
3795 netdev
->dev_addr
[0], netdev
->dev_addr
[1],
3796 netdev
->dev_addr
[2], netdev
->dev_addr
[3],
3797 netdev
->dev_addr
[4], netdev
->dev_addr
[5]);
3798 ndev_info(netdev
, "Intel(R) PRO/%s Network Connection\n",
3799 (hw
->phy
.type
== e1000_phy_ife
)
3800 ? "10/100" : "1000");
3801 e1000e_read_part_num(hw
, &part_num
);
3802 ndev_info(netdev
, "MAC: %d, PHY: %d, PBA No: %06x-%03x\n",
3803 hw
->mac
.type
, hw
->phy
.type
,
3804 (part_num
>> 8), (part_num
& 0xff));
3808 * e1000_probe - Device Initialization Routine
3809 * @pdev: PCI device information struct
3810 * @ent: entry in e1000_pci_tbl
3812 * Returns 0 on success, negative on failure
3814 * e1000_probe initializes an adapter identified by a pci_dev structure.
3815 * The OS initialization, configuring of the adapter private structure,
3816 * and a hardware reset occur.
3818 static int __devinit
e1000_probe(struct pci_dev
*pdev
,
3819 const struct pci_device_id
*ent
)
3821 struct net_device
*netdev
;
3822 struct e1000_adapter
*adapter
;
3823 struct e1000_hw
*hw
;
3824 const struct e1000_info
*ei
= e1000_info_tbl
[ent
->driver_data
];
3825 unsigned long mmio_start
, mmio_len
;
3826 unsigned long flash_start
, flash_len
;
3828 static int cards_found
;
3829 int i
, err
, pci_using_dac
;
3830 u16 eeprom_data
= 0;
3831 u16 eeprom_apme_mask
= E1000_EEPROM_APME
;
3833 e1000e_disable_l1aspm(pdev
);
3834 err
= pci_enable_device(pdev
);
3839 err
= pci_set_dma_mask(pdev
, DMA_64BIT_MASK
);
3841 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
3845 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
3847 err
= pci_set_consistent_dma_mask(pdev
,
3850 dev_err(&pdev
->dev
, "No usable DMA "
3851 "configuration, aborting\n");
3857 err
= pci_request_regions(pdev
, e1000e_driver_name
);
3861 pci_set_master(pdev
);
3864 netdev
= alloc_etherdev(sizeof(struct e1000_adapter
));
3866 goto err_alloc_etherdev
;
3868 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
3870 pci_set_drvdata(pdev
, netdev
);
3871 adapter
= netdev_priv(netdev
);
3873 adapter
->netdev
= netdev
;
3874 adapter
->pdev
= pdev
;
3876 adapter
->pba
= ei
->pba
;
3877 adapter
->flags
= ei
->flags
;
3878 adapter
->hw
.adapter
= adapter
;
3879 adapter
->hw
.mac
.type
= ei
->mac
;
3880 adapter
->msg_enable
= (1 << NETIF_MSG_DRV
| NETIF_MSG_PROBE
) - 1;
3882 mmio_start
= pci_resource_start(pdev
, 0);
3883 mmio_len
= pci_resource_len(pdev
, 0);
3886 adapter
->hw
.hw_addr
= ioremap(mmio_start
, mmio_len
);
3887 if (!adapter
->hw
.hw_addr
)
3890 if ((adapter
->flags
& FLAG_HAS_FLASH
) &&
3891 (pci_resource_flags(pdev
, 1) & IORESOURCE_MEM
)) {
3892 flash_start
= pci_resource_start(pdev
, 1);
3893 flash_len
= pci_resource_len(pdev
, 1);
3894 adapter
->hw
.flash_address
= ioremap(flash_start
, flash_len
);
3895 if (!adapter
->hw
.flash_address
)
3899 /* construct the net_device struct */
3900 netdev
->open
= &e1000_open
;
3901 netdev
->stop
= &e1000_close
;
3902 netdev
->hard_start_xmit
= &e1000_xmit_frame
;
3903 netdev
->get_stats
= &e1000_get_stats
;
3904 netdev
->set_multicast_list
= &e1000_set_multi
;
3905 netdev
->set_mac_address
= &e1000_set_mac
;
3906 netdev
->change_mtu
= &e1000_change_mtu
;
3907 netdev
->do_ioctl
= &e1000_ioctl
;
3908 e1000e_set_ethtool_ops(netdev
);
3909 netdev
->tx_timeout
= &e1000_tx_timeout
;
3910 netdev
->watchdog_timeo
= 5 * HZ
;
3911 netif_napi_add(netdev
, &adapter
->napi
, e1000_clean
, 64);
3912 netdev
->vlan_rx_register
= e1000_vlan_rx_register
;
3913 netdev
->vlan_rx_add_vid
= e1000_vlan_rx_add_vid
;
3914 netdev
->vlan_rx_kill_vid
= e1000_vlan_rx_kill_vid
;
3915 #ifdef CONFIG_NET_POLL_CONTROLLER
3916 netdev
->poll_controller
= e1000_netpoll
;
3918 strncpy(netdev
->name
, pci_name(pdev
), sizeof(netdev
->name
) - 1);
3920 netdev
->mem_start
= mmio_start
;
3921 netdev
->mem_end
= mmio_start
+ mmio_len
;
3923 adapter
->bd_number
= cards_found
++;
3925 /* setup adapter struct */
3926 err
= e1000_sw_init(adapter
);
3932 memcpy(&hw
->mac
.ops
, ei
->mac_ops
, sizeof(hw
->mac
.ops
));
3933 memcpy(&hw
->nvm
.ops
, ei
->nvm_ops
, sizeof(hw
->nvm
.ops
));
3934 memcpy(&hw
->phy
.ops
, ei
->phy_ops
, sizeof(hw
->phy
.ops
));
3936 err
= ei
->get_invariants(adapter
);
3940 hw
->mac
.ops
.get_bus_info(&adapter
->hw
);
3942 adapter
->hw
.phy
.wait_for_link
= 0;
3944 /* Copper options */
3945 if (adapter
->hw
.media_type
== e1000_media_type_copper
) {
3946 adapter
->hw
.phy
.mdix
= AUTO_ALL_MODES
;
3947 adapter
->hw
.phy
.disable_polarity_correction
= 0;
3948 adapter
->hw
.phy
.ms_type
= e1000_ms_hw_default
;
3951 if (e1000_check_reset_block(&adapter
->hw
))
3953 "PHY reset is blocked due to SOL/IDER session.\n");
3955 netdev
->features
= NETIF_F_SG
|
3957 NETIF_F_HW_VLAN_TX
|
3960 if (adapter
->flags
& FLAG_HAS_HW_VLAN_FILTER
)
3961 netdev
->features
|= NETIF_F_HW_VLAN_FILTER
;
3963 netdev
->features
|= NETIF_F_TSO
;
3964 netdev
->features
|= NETIF_F_TSO6
;
3967 netdev
->features
|= NETIF_F_HIGHDMA
;
3970 * We should not be using LLTX anymore, but we are still Tx faster with
3973 netdev
->features
|= NETIF_F_LLTX
;
3975 if (e1000e_enable_mng_pass_thru(&adapter
->hw
))
3976 adapter
->flags
|= FLAG_MNG_PT_ENABLED
;
3979 * before reading the NVM, reset the controller to
3980 * put the device in a known good starting state
3982 adapter
->hw
.mac
.ops
.reset_hw(&adapter
->hw
);
3985 * systems with ASPM and others may see the checksum fail on the first
3986 * attempt. Let's give it a few tries
3989 if (e1000_validate_nvm_checksum(&adapter
->hw
) >= 0)
3992 ndev_err(netdev
, "The NVM Checksum Is Not Valid\n");
3998 /* copy the MAC address out of the NVM */
3999 if (e1000e_read_mac_addr(&adapter
->hw
))
4000 ndev_err(netdev
, "NVM Read Error while reading MAC address\n");
4002 memcpy(netdev
->dev_addr
, adapter
->hw
.mac
.addr
, netdev
->addr_len
);
4003 memcpy(netdev
->perm_addr
, adapter
->hw
.mac
.addr
, netdev
->addr_len
);
4005 if (!is_valid_ether_addr(netdev
->perm_addr
)) {
4006 ndev_err(netdev
, "Invalid MAC Address: "
4007 "%02x:%02x:%02x:%02x:%02x:%02x\n",
4008 netdev
->perm_addr
[0], netdev
->perm_addr
[1],
4009 netdev
->perm_addr
[2], netdev
->perm_addr
[3],
4010 netdev
->perm_addr
[4], netdev
->perm_addr
[5]);
4015 init_timer(&adapter
->watchdog_timer
);
4016 adapter
->watchdog_timer
.function
= &e1000_watchdog
;
4017 adapter
->watchdog_timer
.data
= (unsigned long) adapter
;
4019 init_timer(&adapter
->phy_info_timer
);
4020 adapter
->phy_info_timer
.function
= &e1000_update_phy_info
;
4021 adapter
->phy_info_timer
.data
= (unsigned long) adapter
;
4023 INIT_WORK(&adapter
->reset_task
, e1000_reset_task
);
4024 INIT_WORK(&adapter
->watchdog_task
, e1000_watchdog_task
);
4026 e1000e_check_options(adapter
);
4028 /* Initialize link parameters. User can change them with ethtool */
4029 adapter
->hw
.mac
.autoneg
= 1;
4030 adapter
->fc_autoneg
= 1;
4031 adapter
->hw
.mac
.original_fc
= e1000_fc_default
;
4032 adapter
->hw
.mac
.fc
= e1000_fc_default
;
4033 adapter
->hw
.phy
.autoneg_advertised
= 0x2f;
4035 /* ring size defaults */
4036 adapter
->rx_ring
->count
= 256;
4037 adapter
->tx_ring
->count
= 256;
4040 * Initial Wake on LAN setting - If APM wake is enabled in
4041 * the EEPROM, enable the ACPI Magic Packet filter
4043 if (adapter
->flags
& FLAG_APME_IN_WUC
) {
4044 /* APME bit in EEPROM is mapped to WUC.APME */
4045 eeprom_data
= er32(WUC
);
4046 eeprom_apme_mask
= E1000_WUC_APME
;
4047 } else if (adapter
->flags
& FLAG_APME_IN_CTRL3
) {
4048 if (adapter
->flags
& FLAG_APME_CHECK_PORT_B
&&
4049 (adapter
->hw
.bus
.func
== 1))
4050 e1000_read_nvm(&adapter
->hw
,
4051 NVM_INIT_CONTROL3_PORT_B
, 1, &eeprom_data
);
4053 e1000_read_nvm(&adapter
->hw
,
4054 NVM_INIT_CONTROL3_PORT_A
, 1, &eeprom_data
);
4057 /* fetch WoL from EEPROM */
4058 if (eeprom_data
& eeprom_apme_mask
)
4059 adapter
->eeprom_wol
|= E1000_WUFC_MAG
;
4062 * now that we have the eeprom settings, apply the special cases
4063 * where the eeprom may be wrong or the board simply won't support
4064 * wake on lan on a particular port
4066 if (!(adapter
->flags
& FLAG_HAS_WOL
))
4067 adapter
->eeprom_wol
= 0;
4069 /* initialize the wol settings based on the eeprom settings */
4070 adapter
->wol
= adapter
->eeprom_wol
;
4072 /* reset the hardware with the new settings */
4073 e1000e_reset(adapter
);
4076 * If the controller has AMT, do not set DRV_LOAD until the interface
4077 * is up. For all other cases, let the f/w know that the h/w is now
4078 * under the control of the driver.
4080 if (!(adapter
->flags
& FLAG_HAS_AMT
) ||
4081 !e1000e_check_mng_mode(&adapter
->hw
))
4082 e1000_get_hw_control(adapter
);
4084 /* tell the stack to leave us alone until e1000_open() is called */
4085 netif_carrier_off(netdev
);
4086 netif_stop_queue(netdev
);
4088 strcpy(netdev
->name
, "eth%d");
4089 err
= register_netdev(netdev
);
4093 e1000_print_device_info(adapter
);
4099 e1000_release_hw_control(adapter
);
4101 if (!e1000_check_reset_block(&adapter
->hw
))
4102 e1000_phy_hw_reset(&adapter
->hw
);
4104 if (adapter
->hw
.flash_address
)
4105 iounmap(adapter
->hw
.flash_address
);
4108 kfree(adapter
->tx_ring
);
4109 kfree(adapter
->rx_ring
);
4111 iounmap(adapter
->hw
.hw_addr
);
4113 free_netdev(netdev
);
4115 pci_release_regions(pdev
);
4118 pci_disable_device(pdev
);
4123 * e1000_remove - Device Removal Routine
4124 * @pdev: PCI device information struct
4126 * e1000_remove is called by the PCI subsystem to alert the driver
4127 * that it should release a PCI device. The could be caused by a
4128 * Hot-Plug event, or because the driver is going to be removed from
4131 static void __devexit
e1000_remove(struct pci_dev
*pdev
)
4133 struct net_device
*netdev
= pci_get_drvdata(pdev
);
4134 struct e1000_adapter
*adapter
= netdev_priv(netdev
);
4137 * flush_scheduled work may reschedule our watchdog task, so
4138 * explicitly disable watchdog tasks from being rescheduled
4140 set_bit(__E1000_DOWN
, &adapter
->state
);
4141 del_timer_sync(&adapter
->watchdog_timer
);
4142 del_timer_sync(&adapter
->phy_info_timer
);
4144 flush_scheduled_work();
4147 * Release control of h/w to f/w. If f/w is AMT enabled, this
4148 * would have already happened in close and is redundant.
4150 e1000_release_hw_control(adapter
);
4152 unregister_netdev(netdev
);
4154 if (!e1000_check_reset_block(&adapter
->hw
))
4155 e1000_phy_hw_reset(&adapter
->hw
);
4157 kfree(adapter
->tx_ring
);
4158 kfree(adapter
->rx_ring
);
4160 iounmap(adapter
->hw
.hw_addr
);
4161 if (adapter
->hw
.flash_address
)
4162 iounmap(adapter
->hw
.flash_address
);
4163 pci_release_regions(pdev
);
4165 free_netdev(netdev
);
4167 pci_disable_device(pdev
);
4170 /* PCI Error Recovery (ERS) */
4171 static struct pci_error_handlers e1000_err_handler
= {
4172 .error_detected
= e1000_io_error_detected
,
4173 .slot_reset
= e1000_io_slot_reset
,
4174 .resume
= e1000_io_resume
,
4177 static struct pci_device_id e1000_pci_tbl
[] = {
4178 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82571EB_COPPER
), board_82571
},
4179 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82571EB_FIBER
), board_82571
},
4180 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82571EB_QUAD_COPPER
), board_82571
},
4181 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82571EB_QUAD_COPPER_LP
), board_82571
},
4182 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82571EB_QUAD_FIBER
), board_82571
},
4183 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82571EB_SERDES
), board_82571
},
4184 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82571EB_SERDES_DUAL
), board_82571
},
4185 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82571EB_SERDES_QUAD
), board_82571
},
4186 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82571PT_QUAD_COPPER
), board_82571
},
4188 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82572EI
), board_82572
},
4189 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82572EI_COPPER
), board_82572
},
4190 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82572EI_FIBER
), board_82572
},
4191 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82572EI_SERDES
), board_82572
},
4193 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82573E
), board_82573
},
4194 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82573E_IAMT
), board_82573
},
4195 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_82573L
), board_82573
},
4197 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_80003ES2LAN_COPPER_DPT
),
4198 board_80003es2lan
},
4199 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_80003ES2LAN_COPPER_SPT
),
4200 board_80003es2lan
},
4201 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_80003ES2LAN_SERDES_DPT
),
4202 board_80003es2lan
},
4203 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_80003ES2LAN_SERDES_SPT
),
4204 board_80003es2lan
},
4206 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH8_IFE
), board_ich8lan
},
4207 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH8_IFE_G
), board_ich8lan
},
4208 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH8_IFE_GT
), board_ich8lan
},
4209 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH8_IGP_AMT
), board_ich8lan
},
4210 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH8_IGP_C
), board_ich8lan
},
4211 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH8_IGP_M
), board_ich8lan
},
4212 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH8_IGP_M_AMT
), board_ich8lan
},
4214 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH9_IFE
), board_ich9lan
},
4215 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH9_IFE_G
), board_ich9lan
},
4216 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH9_IFE_GT
), board_ich9lan
},
4217 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH9_IGP_AMT
), board_ich9lan
},
4218 { PCI_VDEVICE(INTEL
, E1000_DEV_ID_ICH9_IGP_C
), board_ich9lan
},
4220 { } /* terminate list */
4222 MODULE_DEVICE_TABLE(pci
, e1000_pci_tbl
);
4224 /* PCI Device API Driver */
4225 static struct pci_driver e1000_driver
= {
4226 .name
= e1000e_driver_name
,
4227 .id_table
= e1000_pci_tbl
,
4228 .probe
= e1000_probe
,
4229 .remove
= __devexit_p(e1000_remove
),
4231 /* Power Management Hooks */
4232 .suspend
= e1000_suspend
,
4233 .resume
= e1000_resume
,
4235 .shutdown
= e1000_shutdown
,
4236 .err_handler
= &e1000_err_handler
4240 * e1000_init_module - Driver Registration Routine
4242 * e1000_init_module is the first routine called when the driver is
4243 * loaded. All it does is register with the PCI subsystem.
4245 static int __init
e1000_init_module(void)
4248 printk(KERN_INFO
"%s: Intel(R) PRO/1000 Network Driver - %s\n",
4249 e1000e_driver_name
, e1000e_driver_version
);
4250 printk(KERN_INFO
"%s: Copyright (c) 1999-2008 Intel Corporation.\n",
4251 e1000e_driver_name
);
4252 ret
= pci_register_driver(&e1000_driver
);
4256 module_init(e1000_init_module
);
4259 * e1000_exit_module - Driver Exit Cleanup Routine
4261 * e1000_exit_module is called just before the driver is removed
4264 static void __exit
e1000_exit_module(void)
4266 pci_unregister_driver(&e1000_driver
);
4268 module_exit(e1000_exit_module
);
4271 MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
4272 MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver");
4273 MODULE_LICENSE("GPL");
4274 MODULE_VERSION(DRV_VERSION
);