1 /*******************************************************************************
3 Intel(R) Gigabit Ethernet Linux driver
4 Copyright(c) 2007 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 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26 *******************************************************************************/
31 #include <linux/types.h>
32 #include <linux/delay.h>
35 #include "e1000_mac.h"
36 #include "e1000_regs.h"
37 #include "e1000_defines.h"
41 #define E1000_DEV_ID_82576 0x10C9
42 #define E1000_DEV_ID_82576_FIBER 0x10E6
43 #define E1000_DEV_ID_82576_SERDES 0x10E7
44 #define E1000_DEV_ID_82576_QUAD_COPPER 0x10E8
45 #define E1000_DEV_ID_82575EB_COPPER 0x10A7
46 #define E1000_DEV_ID_82575EB_FIBER_SERDES 0x10A9
47 #define E1000_DEV_ID_82575GB_QUAD_COPPER 0x10D6
49 #define E1000_REVISION_2 2
50 #define E1000_REVISION_4 4
52 #define E1000_FUNC_1 1
58 e1000_num_macs
/* List is 1-based, so subtract 1 for true count. */
61 enum e1000_media_type
{
62 e1000_media_type_unknown
= 0,
63 e1000_media_type_copper
= 1,
64 e1000_media_type_fiber
= 2,
65 e1000_media_type_internal_serdes
= 3,
70 e1000_nvm_unknown
= 0,
73 e1000_nvm_eeprom_microwire
,
78 enum e1000_nvm_override
{
79 e1000_nvm_override_none
= 0,
80 e1000_nvm_override_spi_small
,
81 e1000_nvm_override_spi_large
,
82 e1000_nvm_override_microwire_small
,
83 e1000_nvm_override_microwire_large
87 e1000_phy_unknown
= 0,
98 e1000_bus_type_unknown
= 0,
101 e1000_bus_type_pci_express
,
102 e1000_bus_type_reserved
105 enum e1000_bus_speed
{
106 e1000_bus_speed_unknown
= 0,
112 e1000_bus_speed_2500
,
113 e1000_bus_speed_5000
,
114 e1000_bus_speed_reserved
117 enum e1000_bus_width
{
118 e1000_bus_width_unknown
= 0,
119 e1000_bus_width_pcie_x1
,
120 e1000_bus_width_pcie_x2
,
121 e1000_bus_width_pcie_x4
= 4,
122 e1000_bus_width_pcie_x8
= 8,
125 e1000_bus_width_reserved
128 enum e1000_1000t_rx_status
{
129 e1000_1000t_rx_status_not_ok
= 0,
130 e1000_1000t_rx_status_ok
,
131 e1000_1000t_rx_status_undefined
= 0xFF
134 enum e1000_rev_polarity
{
135 e1000_rev_polarity_normal
= 0,
136 e1000_rev_polarity_reversed
,
137 e1000_rev_polarity_undefined
= 0xFF
145 e1000_fc_default
= 0xFF
149 /* Receive Descriptor */
150 struct e1000_rx_desc
{
151 __le64 buffer_addr
; /* Address of the descriptor's data buffer */
152 __le16 length
; /* Length of data DMAed into data buffer */
153 __le16 csum
; /* Packet checksum */
154 u8 status
; /* Descriptor status */
155 u8 errors
; /* Descriptor Errors */
159 /* Receive Descriptor - Extended */
160 union e1000_rx_desc_extended
{
167 __le32 mrq
; /* Multiple Rx Queues */
169 __le32 rss
; /* RSS Hash */
171 __le16 ip_id
; /* IP id */
172 __le16 csum
; /* Packet Checksum */
177 __le32 status_error
; /* ext status/error */
179 __le16 vlan
; /* VLAN tag */
181 } wb
; /* writeback */
184 #define MAX_PS_BUFFERS 4
185 /* Receive Descriptor - Packet Split */
186 union e1000_rx_desc_packet_split
{
188 /* one buffer for protocol header(s), three data buffers */
189 __le64 buffer_addr
[MAX_PS_BUFFERS
];
193 __le32 mrq
; /* Multiple Rx Queues */
195 __le32 rss
; /* RSS Hash */
197 __le16 ip_id
; /* IP id */
198 __le16 csum
; /* Packet Checksum */
203 __le32 status_error
; /* ext status/error */
204 __le16 length0
; /* length of buffer 0 */
205 __le16 vlan
; /* VLAN tag */
208 __le16 header_status
;
209 __le16 length
[3]; /* length of buffers 1-3 */
212 } wb
; /* writeback */
215 /* Transmit Descriptor */
216 struct e1000_tx_desc
{
217 __le64 buffer_addr
; /* Address of the descriptor's data buffer */
221 __le16 length
; /* Data buffer length */
222 u8 cso
; /* Checksum offset */
223 u8 cmd
; /* Descriptor control */
229 u8 status
; /* Descriptor status */
230 u8 css
; /* Checksum start */
236 /* Offload Context Descriptor */
237 struct e1000_context_desc
{
241 u8 ipcss
; /* IP checksum start */
242 u8 ipcso
; /* IP checksum offset */
243 __le16 ipcse
; /* IP checksum end */
249 u8 tucss
; /* TCP checksum start */
250 u8 tucso
; /* TCP checksum offset */
251 __le16 tucse
; /* TCP checksum end */
254 __le32 cmd_and_length
;
258 u8 status
; /* Descriptor status */
259 u8 hdr_len
; /* Header length */
260 __le16 mss
; /* Maximum segment size */
265 /* Offload data descriptor */
266 struct e1000_data_desc
{
267 __le64 buffer_addr
; /* Address of the descriptor's buffer address */
271 __le16 length
; /* Data buffer length */
279 u8 status
; /* Descriptor status */
280 u8 popts
; /* Packet Options */
286 /* Statistics counters collected by the MAC */
287 struct e1000_hw_stats
{
365 struct e1000_phy_stats
{
370 struct e1000_host_mng_dhcp_cookie
{
381 /* Host Interface "Rev 1" */
382 struct e1000_host_command_header
{
389 #define E1000_HI_MAX_DATA_LENGTH 252
390 struct e1000_host_command_info
{
391 struct e1000_host_command_header command_header
;
392 u8 command_data
[E1000_HI_MAX_DATA_LENGTH
];
395 /* Host Interface "Rev 2" */
396 struct e1000_host_mng_command_header
{
404 #define E1000_HI_MAX_MNG_DATA_LENGTH 0x6F8
405 struct e1000_host_mng_command_info
{
406 struct e1000_host_mng_command_header command_header
;
407 u8 command_data
[E1000_HI_MAX_MNG_DATA_LENGTH
];
410 #include "e1000_mac.h"
411 #include "e1000_phy.h"
412 #include "e1000_nvm.h"
414 struct e1000_mac_operations
{
415 s32 (*check_for_link
)(struct e1000_hw
*);
416 s32 (*reset_hw
)(struct e1000_hw
*);
417 s32 (*init_hw
)(struct e1000_hw
*);
418 bool (*check_mng_mode
)(struct e1000_hw
*);
419 s32 (*setup_physical_interface
)(struct e1000_hw
*);
420 void (*rar_set
)(struct e1000_hw
*, u8
*, u32
);
421 s32 (*read_mac_addr
)(struct e1000_hw
*);
422 s32 (*get_speed_and_duplex
)(struct e1000_hw
*, u16
*, u16
*);
423 void (*mta_set
)(struct e1000_hw
*, u32
);
426 struct e1000_phy_operations
{
427 s32 (*acquire_phy
)(struct e1000_hw
*);
428 s32 (*check_reset_block
)(struct e1000_hw
*);
429 s32 (*force_speed_duplex
)(struct e1000_hw
*);
430 s32 (*get_cfg_done
)(struct e1000_hw
*hw
);
431 s32 (*get_cable_length
)(struct e1000_hw
*);
432 s32 (*get_phy_info
)(struct e1000_hw
*);
433 s32 (*read_phy_reg
)(struct e1000_hw
*, u32
, u16
*);
434 void (*release_phy
)(struct e1000_hw
*);
435 s32 (*reset_phy
)(struct e1000_hw
*);
436 s32 (*set_d0_lplu_state
)(struct e1000_hw
*, bool);
437 s32 (*set_d3_lplu_state
)(struct e1000_hw
*, bool);
438 s32 (*write_phy_reg
)(struct e1000_hw
*, u32
, u16
);
441 struct e1000_nvm_operations
{
442 s32 (*acquire_nvm
)(struct e1000_hw
*);
443 s32 (*read_nvm
)(struct e1000_hw
*, u16
, u16
, u16
*);
444 void (*release_nvm
)(struct e1000_hw
*);
445 s32 (*write_nvm
)(struct e1000_hw
*, u16
, u16
, u16
*);
449 s32 (*get_invariants
)(struct e1000_hw
*);
450 struct e1000_mac_operations
*mac_ops
;
451 struct e1000_phy_operations
*phy_ops
;
452 struct e1000_nvm_operations
*nvm_ops
;
455 extern const struct e1000_info e1000_82575_info
;
457 struct e1000_mac_info
{
458 struct e1000_mac_operations ops
;
463 enum e1000_mac_type type
;
481 u8 forced_speed_duplex
;
484 bool arc_subsystem_valid
;
485 bool asf_firmware_present
;
489 bool disable_hw_init_bits
;
490 bool get_link_status
;
491 bool ifs_params_forced
;
493 bool report_tx_early
;
494 bool serdes_has_link
;
495 bool tx_pkt_filtering
;
498 struct e1000_phy_info
{
499 struct e1000_phy_operations ops
;
501 enum e1000_phy_type type
;
503 enum e1000_1000t_rx_status local_rx
;
504 enum e1000_1000t_rx_status remote_rx
;
505 enum e1000_ms_type ms_type
;
506 enum e1000_ms_type original_ms_type
;
507 enum e1000_rev_polarity cable_polarity
;
508 enum e1000_smart_speed smart_speed
;
512 u32 reset_delay_us
; /* in usec */
515 enum e1000_media_type media_type
;
517 u16 autoneg_advertised
;
520 u16 max_cable_length
;
521 u16 min_cable_length
;
525 bool disable_polarity_correction
;
527 bool polarity_correction
;
529 bool speed_downgraded
;
530 bool autoneg_wait_to_complete
;
533 struct e1000_nvm_info
{
534 struct e1000_nvm_operations ops
;
536 enum e1000_nvm_type type
;
537 enum e1000_nvm_override override
;
549 struct e1000_bus_info
{
550 enum e1000_bus_type type
;
551 enum e1000_bus_speed speed
;
552 enum e1000_bus_width width
;
560 struct e1000_fc_info
{
561 u32 high_water
; /* Flow control high-water mark */
562 u32 low_water
; /* Flow control low-water mark */
563 u16 pause_time
; /* Flow control pause timer */
564 bool send_xon
; /* Flow control send XON */
565 bool strict_ieee
; /* Strict IEEE mode */
566 enum e1000_fc_type type
; /* Type of flow control */
567 enum e1000_fc_type original_type
;
575 u8 __iomem
*flash_address
;
576 unsigned long io_base
;
578 struct e1000_mac_info mac
;
579 struct e1000_fc_info fc
;
580 struct e1000_phy_info phy
;
581 struct e1000_nvm_info nvm
;
582 struct e1000_bus_info bus
;
583 struct e1000_host_mng_dhcp_cookie mng_cookie
;
588 u16 subsystem_vendor_id
;
589 u16 subsystem_device_id
;
596 extern char *igb_get_hw_dev_name(struct e1000_hw
*hw
);
597 #define hw_dbg(format, arg...) \
598 printk(KERN_DEBUG "%s: " format, igb_get_hw_dev_name(hw), ##arg)
600 #define hw_dbg(format, arg...)