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e1000_manage.c (169248) e1000_manage.c (169589)
1/*******************************************************************************
2
3 Copyright (c) 2001-2007, Intel Corporation
4 All rights reserved.
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
8

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25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
31
32*******************************************************************************/
1/*******************************************************************************
2
3 Copyright (c) 2001-2007, Intel Corporation
4 All rights reserved.
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
8

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25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
31
32*******************************************************************************/
33/*$FreeBSD: head/sys/dev/em/e1000_manage.c 169589 2007-05-16 00:14:23Z jfv $*/
33
34
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD: head/sys/dev/em/e1000_manage.c 169248 2007-05-04 13:30:44Z rwatson $");
36
35
37
36#include "e1000_api.h"
38#include "e1000_manage.h"
39
40static u8 e1000_calculate_checksum(u8 *buffer, u32 length);
41
42/**
43 * e1000_calculate_checksum - Calculate checksum for buffer
37#include "e1000_manage.h"
38
39static u8 e1000_calculate_checksum(u8 *buffer, u32 length);
40
41/**
42 * e1000_calculate_checksum - Calculate checksum for buffer
44 * @buffer - pointer to EEPROM
45 * @length - size of EEPROM to calculate a checksum for
43 * @buffer: pointer to EEPROM
44 * @length: size of EEPROM to calculate a checksum for
46 *
47 * Calculates the checksum for some buffer on a specified length. The
48 * checksum calculated is returned.
49 **/
50static u8
51e1000_calculate_checksum(u8 *buffer, u32 length)
52{
53 u32 i;

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61 for (i = 0; i < length; i++)
62 sum += buffer[i];
63
64 return (u8) (0 - sum);
65}
66
67/**
68 * e1000_mng_enable_host_if_generic - Checks host interface is enabled
45 *
46 * Calculates the checksum for some buffer on a specified length. The
47 * checksum calculated is returned.
48 **/
49static u8
50e1000_calculate_checksum(u8 *buffer, u32 length)
51{
52 u32 i;

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60 for (i = 0; i < length; i++)
61 sum += buffer[i];
62
63 return (u8) (0 - sum);
64}
65
66/**
67 * e1000_mng_enable_host_if_generic - Checks host interface is enabled
69 * @hw - pointer to the HW structure
68 * @hw: pointer to the HW structure
70 *
71 * Returns E1000_success upon success, else E1000_ERR_HOST_INTERFACE_COMMAND
72 *
73 * This function checks whether the HOST IF is enabled for command operaton
74 * and also checks whether the previous command is completed. It busy waits
75 * in case of previous command is not completed.
76 **/
77s32

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105 }
106
107out:
108 return ret_val;
109}
110
111/**
112 * e1000_check_mng_mode_generic - Generic check managament mode
69 *
70 * Returns E1000_success upon success, else E1000_ERR_HOST_INTERFACE_COMMAND
71 *
72 * This function checks whether the HOST IF is enabled for command operaton
73 * and also checks whether the previous command is completed. It busy waits
74 * in case of previous command is not completed.
75 **/
76s32

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104 }
105
106out:
107 return ret_val;
108}
109
110/**
111 * e1000_check_mng_mode_generic - Generic check managament mode
113 * @hw - pointer to the HW structure
112 * @hw: pointer to the HW structure
114 *
115 * Reads the firmware semaphore register and returns true (>0) if
116 * manageability is enabled, else false (0).
117 **/
118boolean_t
119e1000_check_mng_mode_generic(struct e1000_hw *hw)
120{
121 u32 fwsm;
122
123 DEBUGFUNC("e1000_check_mng_mode_generic");
124
125 fwsm = E1000_READ_REG(hw, E1000_FWSM);
126
127 return ((fwsm & E1000_FWSM_MODE_MASK) ==
128 (E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT));
129}
130
131/**
132 * e1000_enable_tx_pkt_filtering_generic - Enable packet filtering on TX
113 *
114 * Reads the firmware semaphore register and returns true (>0) if
115 * manageability is enabled, else false (0).
116 **/
117boolean_t
118e1000_check_mng_mode_generic(struct e1000_hw *hw)
119{
120 u32 fwsm;
121
122 DEBUGFUNC("e1000_check_mng_mode_generic");
123
124 fwsm = E1000_READ_REG(hw, E1000_FWSM);
125
126 return ((fwsm & E1000_FWSM_MODE_MASK) ==
127 (E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT));
128}
129
130/**
131 * e1000_enable_tx_pkt_filtering_generic - Enable packet filtering on TX
133 * @hw - pointer to the HW structure
132 * @hw: pointer to the HW structure
134 *
135 * Enables packet filtering on transmit packets if manageability is enabled
136 * and host interface is enabled.
137 **/
138boolean_t
139e1000_enable_tx_pkt_filtering_generic(struct e1000_hw *hw)
140{
141 struct e1000_host_mng_dhcp_cookie *hdr = &hw->mng_cookie;

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189
190out:
191 hw->mac.tx_pkt_filtering = tx_filter;
192 return tx_filter;
193}
194
195/**
196 * e1000_mng_write_dhcp_info_generic - Writes DHCP info to host interface
133 *
134 * Enables packet filtering on transmit packets if manageability is enabled
135 * and host interface is enabled.
136 **/
137boolean_t
138e1000_enable_tx_pkt_filtering_generic(struct e1000_hw *hw)
139{
140 struct e1000_host_mng_dhcp_cookie *hdr = &hw->mng_cookie;

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188
189out:
190 hw->mac.tx_pkt_filtering = tx_filter;
191 return tx_filter;
192}
193
194/**
195 * e1000_mng_write_dhcp_info_generic - Writes DHCP info to host interface
197 * @hw - pointer to the HW structure
198 * @buffer - pointer to the host interface
199 * @length - size of the buffer
196 * @hw: pointer to the HW structure
197 * @buffer: pointer to the host interface
198 * @length: size of the buffer
200 *
201 * Writes the DHCP information to the host interface.
202 **/
203s32
204e1000_mng_write_dhcp_info_generic(struct e1000_hw * hw, u8 *buffer, u16 length)
205{
206 struct e1000_host_mng_command_header hdr;
207 s32 ret_val;

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236 E1000_WRITE_REG(hw, E1000_HICR, hicr | E1000_HICR_C);
237
238out:
239 return ret_val;
240}
241
242/**
243 * e1000_mng_write_cmd_header_generic - Writes manageability command header
199 *
200 * Writes the DHCP information to the host interface.
201 **/
202s32
203e1000_mng_write_dhcp_info_generic(struct e1000_hw * hw, u8 *buffer, u16 length)
204{
205 struct e1000_host_mng_command_header hdr;
206 s32 ret_val;

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235 E1000_WRITE_REG(hw, E1000_HICR, hicr | E1000_HICR_C);
236
237out:
238 return ret_val;
239}
240
241/**
242 * e1000_mng_write_cmd_header_generic - Writes manageability command header
244 * @hw - pointer to the HW structure
245 * @hdr - pointer to the host interface command header
243 * @hw: pointer to the HW structure
244 * @hdr: pointer to the host interface command header
246 *
247 * Writes the command header after does the checksum calculation.
248 **/
249s32
250e1000_mng_write_cmd_header_generic(struct e1000_hw * hw,
251 struct e1000_host_mng_command_header * hdr)
252{
253 u16 i, length = sizeof(struct e1000_host_mng_command_header);

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265 E1000_WRITE_FLUSH(hw);
266 }
267
268 return E1000_SUCCESS;
269}
270
271/**
272 * e1000_mng_host_if_write_generic - Writes to the manageability host interface
245 *
246 * Writes the command header after does the checksum calculation.
247 **/
248s32
249e1000_mng_write_cmd_header_generic(struct e1000_hw * hw,
250 struct e1000_host_mng_command_header * hdr)
251{
252 u16 i, length = sizeof(struct e1000_host_mng_command_header);

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264 E1000_WRITE_FLUSH(hw);
265 }
266
267 return E1000_SUCCESS;
268}
269
270/**
271 * e1000_mng_host_if_write_generic - Writes to the manageability host interface
273 * @hw - pointer to the HW structure
274 * @buffer - pointer to the host interface buffer
275 * @length - size of the buffer
276 * @offset - location in the buffer to write to
277 * @sum - sum of the data (not checksum)
272 * @hw: pointer to the HW structure
273 * @buffer: pointer to the host interface buffer
274 * @length: size of the buffer
275 * @offset: location in the buffer to write to
276 * @sum: sum of the data (not checksum)
278 *
279 * This function writes the buffer content at the offset given on the host if.
280 * It also does alignment considerations to do the writes in most efficient
281 * way. Also fills up the sum of the buffer in *buffer parameter.
282 **/
283s32
284e1000_mng_host_if_write_generic(struct e1000_hw * hw, u8 *buffer, u16 length,
285 u16 offset, u8 *sum)

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343 }
344
345out:
346 return ret_val;
347}
348
349/**
350 * e1000_enable_mng_pass_thru - Enable processing of ARP's
277 *
278 * This function writes the buffer content at the offset given on the host if.
279 * It also does alignment considerations to do the writes in most efficient
280 * way. Also fills up the sum of the buffer in *buffer parameter.
281 **/
282s32
283e1000_mng_host_if_write_generic(struct e1000_hw * hw, u8 *buffer, u16 length,
284 u16 offset, u8 *sum)

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342 }
343
344out:
345 return ret_val;
346}
347
348/**
349 * e1000_enable_mng_pass_thru - Enable processing of ARP's
351 * @hw - pointer to the HW structure
350 * @hw: pointer to the HW structure
352 *
353 * Verifies the hardware needs to allow ARPs to be processed by the host.
354 **/
355boolean_t
356e1000_enable_mng_pass_thru(struct e1000_hw *hw)
357{
358 u32 manc;
359 u32 fwsm, factps;

--- 34 unchanged lines hidden --- 		351 *
352 * Verifies the hardware needs to allow ARPs to be processed by the host.
353 **/
354boolean_t
355e1000_enable_mng_pass_thru(struct e1000_hw *hw)
356{
357 u32 manc;
358 u32 fwsm, factps;

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