devices/e1000e/manage-3.16-ethercat.c
author Dave Page <dave.page@gleeble.com>
Tue, 07 Apr 2015 21:07:16 -0400
changeset 2614 9b29d7bfa230
parent 2589 2b9c78543663
permissions -rw-r--r--
Fix datagram overflow layout issue
2589
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     1
/* Intel PRO/1000 Linux driver
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     2
 * Copyright(c) 1999 - 2014 Intel Corporation.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     3
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     4
 * This program is free software; you can redistribute it and/or modify it
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     5
 * under the terms and conditions of the GNU General Public License,
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     6
 * version 2, as published by the Free Software Foundation.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     7
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     8
 * This program is distributed in the hope it will be useful, but WITHOUT
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     9
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    10
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    11
 * more details.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    12
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    13
 * The full GNU General Public License is included in this distribution in
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    14
 * the file called "COPYING".
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    15
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    16
 * Contact Information:
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    17
 * Linux NICS <linux.nics@intel.com>
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    18
 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    19
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    20
 */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    21
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    22
#include "e1000-3.16-ethercat.h"
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    23
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    24
/**
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    25
 *  e1000_calculate_checksum - Calculate checksum for buffer
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    26
 *  @buffer: pointer to EEPROM
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    27
 *  @length: size of EEPROM to calculate a checksum for
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    28
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    29
 *  Calculates the checksum for some buffer on a specified length.  The
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    30
 *  checksum calculated is returned.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    31
 **/
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    32
static u8 e1000_calculate_checksum(u8 *buffer, u32 length)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    33
{
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    34
	u32 i;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    35
	u8 sum = 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    36
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    37
	if (!buffer)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    38
		return 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    39
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    40
	for (i = 0; i < length; i++)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    41
		sum += buffer[i];
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    42
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    43
	return (u8)(0 - sum);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    44
}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    45
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    46
/**
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    47
 *  e1000_mng_enable_host_if - Checks host interface is enabled
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    48
 *  @hw: pointer to the HW structure
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    49
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    50
 *  Returns E1000_success upon success, else E1000_ERR_HOST_INTERFACE_COMMAND
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    51
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    52
 *  This function checks whether the HOST IF is enabled for command operation
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    53
 *  and also checks whether the previous command is completed.  It busy waits
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    54
 *  in case of previous command is not completed.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    55
 **/
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    56
static s32 e1000_mng_enable_host_if(struct e1000_hw *hw)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    57
{
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    58
	u32 hicr;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    59
	u8 i;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    60
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    61
	if (!hw->mac.arc_subsystem_valid) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    62
		e_dbg("ARC subsystem not valid.\n");
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    63
		return -E1000_ERR_HOST_INTERFACE_COMMAND;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    64
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    65
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    66
	/* Check that the host interface is enabled. */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    67
	hicr = er32(HICR);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    68
	if (!(hicr & E1000_HICR_EN)) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    69
		e_dbg("E1000_HOST_EN bit disabled.\n");
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    70
		return -E1000_ERR_HOST_INTERFACE_COMMAND;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    71
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    72
	/* check the previous command is completed */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    73
	for (i = 0; i < E1000_MNG_DHCP_COMMAND_TIMEOUT; i++) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    74
		hicr = er32(HICR);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    75
		if (!(hicr & E1000_HICR_C))
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    76
			break;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    77
		mdelay(1);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    78
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    79
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    80
	if (i == E1000_MNG_DHCP_COMMAND_TIMEOUT) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    81
		e_dbg("Previous command timeout failed .\n");
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    82
		return -E1000_ERR_HOST_INTERFACE_COMMAND;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    83
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    84
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    85
	return 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    86
}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    87
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    88
/**
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    89
 *  e1000e_check_mng_mode_generic - Generic check management mode
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    90
 *  @hw: pointer to the HW structure
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    91
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    92
 *  Reads the firmware semaphore register and returns true (>0) if
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    93
 *  manageability is enabled, else false (0).
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    94
 **/
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    95
bool e1000e_check_mng_mode_generic(struct e1000_hw *hw)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    96
{
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    97
	u32 fwsm = er32(FWSM);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    98
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    99
	return (fwsm & E1000_FWSM_MODE_MASK) ==
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   100
	    (E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   101
}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   102
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   103
/**
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   104
 *  e1000e_enable_tx_pkt_filtering - Enable packet filtering on Tx
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   105
 *  @hw: pointer to the HW structure
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   106
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   107
 *  Enables packet filtering on transmit packets if manageability is enabled
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   108
 *  and host interface is enabled.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   109
 **/
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   110
bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   111
{
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   112
	struct e1000_host_mng_dhcp_cookie *hdr = &hw->mng_cookie;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   113
	u32 *buffer = (u32 *)&hw->mng_cookie;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   114
	u32 offset;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   115
	s32 ret_val, hdr_csum, csum;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   116
	u8 i, len;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   117
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   118
	hw->mac.tx_pkt_filtering = true;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   119
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   120
	/* No manageability, no filtering */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   121
	if (!hw->mac.ops.check_mng_mode(hw)) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   122
		hw->mac.tx_pkt_filtering = false;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   123
		return hw->mac.tx_pkt_filtering;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   124
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   125
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   126
	/* If we can't read from the host interface for whatever
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   127
	 * reason, disable filtering.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   128
	 */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   129
	ret_val = e1000_mng_enable_host_if(hw);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   130
	if (ret_val) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   131
		hw->mac.tx_pkt_filtering = false;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   132
		return hw->mac.tx_pkt_filtering;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   133
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   134
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   135
	/* Read in the header.  Length and offset are in dwords. */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   136
	len = E1000_MNG_DHCP_COOKIE_LENGTH >> 2;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   137
	offset = E1000_MNG_DHCP_COOKIE_OFFSET >> 2;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   138
	for (i = 0; i < len; i++)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   139
		*(buffer + i) = E1000_READ_REG_ARRAY(hw, E1000_HOST_IF,
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   140
						     offset + i);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   141
	hdr_csum = hdr->checksum;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   142
	hdr->checksum = 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   143
	csum = e1000_calculate_checksum((u8 *)hdr,
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   144
					E1000_MNG_DHCP_COOKIE_LENGTH);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   145
	/* If either the checksums or signature don't match, then
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   146
	 * the cookie area isn't considered valid, in which case we
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   147
	 * take the safe route of assuming Tx filtering is enabled.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   148
	 */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   149
	if ((hdr_csum != csum) || (hdr->signature != E1000_IAMT_SIGNATURE)) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   150
		hw->mac.tx_pkt_filtering = true;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   151
		return hw->mac.tx_pkt_filtering;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   152
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   153
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   154
	/* Cookie area is valid, make the final check for filtering. */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   155
	if (!(hdr->status & E1000_MNG_DHCP_COOKIE_STATUS_PARSING))
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   156
		hw->mac.tx_pkt_filtering = false;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   157
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   158
	return hw->mac.tx_pkt_filtering;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   159
}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   160
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   161
/**
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   162
 *  e1000_mng_write_cmd_header - Writes manageability command header
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   163
 *  @hw: pointer to the HW structure
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   164
 *  @hdr: pointer to the host interface command header
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   165
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   166
 *  Writes the command header after does the checksum calculation.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   167
 **/
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   168
static s32 e1000_mng_write_cmd_header(struct e1000_hw *hw,
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   169
				      struct e1000_host_mng_command_header *hdr)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   170
{
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   171
	u16 i, length = sizeof(struct e1000_host_mng_command_header);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   172
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   173
	/* Write the whole command header structure with new checksum. */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   174
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   175
	hdr->checksum = e1000_calculate_checksum((u8 *)hdr, length);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   176
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   177
	length >>= 2;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   178
	/* Write the relevant command block into the ram area. */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   179
	for (i = 0; i < length; i++) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   180
		E1000_WRITE_REG_ARRAY(hw, E1000_HOST_IF, i, *((u32 *)hdr + i));
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   181
		e1e_flush();
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   182
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   183
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   184
	return 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   185
}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   186
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   187
/**
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   188
 *  e1000_mng_host_if_write - Write to the manageability host interface
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   189
 *  @hw: pointer to the HW structure
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   190
 *  @buffer: pointer to the host interface buffer
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   191
 *  @length: size of the buffer
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   192
 *  @offset: location in the buffer to write to
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   193
 *  @sum: sum of the data (not checksum)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   194
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   195
 *  This function writes the buffer content at the offset given on the host if.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   196
 *  It also does alignment considerations to do the writes in most efficient
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   197
 *  way.  Also fills up the sum of the buffer in *buffer parameter.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   198
 **/
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   199
static s32 e1000_mng_host_if_write(struct e1000_hw *hw, u8 *buffer,
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   200
				   u16 length, u16 offset, u8 *sum)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   201
{
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   202
	u8 *tmp;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   203
	u8 *bufptr = buffer;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   204
	u32 data = 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   205
	u16 remaining, i, j, prev_bytes;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   206
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   207
	/* sum = only sum of the data and it is not checksum */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   208
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   209
	if (length == 0 || offset + length > E1000_HI_MAX_MNG_DATA_LENGTH)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   210
		return -E1000_ERR_PARAM;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   211
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   212
	tmp = (u8 *)&data;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   213
	prev_bytes = offset & 0x3;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   214
	offset >>= 2;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   215
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   216
	if (prev_bytes) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   217
		data = E1000_READ_REG_ARRAY(hw, E1000_HOST_IF, offset);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   218
		for (j = prev_bytes; j < sizeof(u32); j++) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   219
			*(tmp + j) = *bufptr++;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   220
			*sum += *(tmp + j);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   221
		}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   222
		E1000_WRITE_REG_ARRAY(hw, E1000_HOST_IF, offset, data);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   223
		length -= j - prev_bytes;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   224
		offset++;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   225
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   226
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   227
	remaining = length & 0x3;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   228
	length -= remaining;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   229
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   230
	/* Calculate length in DWORDs */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   231
	length >>= 2;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   232
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   233
	/* The device driver writes the relevant command block into the
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   234
	 * ram area.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   235
	 */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   236
	for (i = 0; i < length; i++) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   237
		for (j = 0; j < sizeof(u32); j++) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   238
			*(tmp + j) = *bufptr++;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   239
			*sum += *(tmp + j);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   240
		}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   241
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   242
		E1000_WRITE_REG_ARRAY(hw, E1000_HOST_IF, offset + i, data);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   243
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   244
	if (remaining) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   245
		for (j = 0; j < sizeof(u32); j++) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   246
			if (j < remaining)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   247
				*(tmp + j) = *bufptr++;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   248
			else
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   249
				*(tmp + j) = 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   250
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   251
			*sum += *(tmp + j);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   252
		}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   253
		E1000_WRITE_REG_ARRAY(hw, E1000_HOST_IF, offset + i, data);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   254
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   255
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   256
	return 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   257
}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   258
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   259
/**
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   260
 *  e1000e_mng_write_dhcp_info - Writes DHCP info to host interface
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   261
 *  @hw: pointer to the HW structure
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   262
 *  @buffer: pointer to the host interface
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   263
 *  @length: size of the buffer
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   264
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   265
 *  Writes the DHCP information to the host interface.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   266
 **/
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   267
s32 e1000e_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, u16 length)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   268
{
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   269
	struct e1000_host_mng_command_header hdr;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   270
	s32 ret_val;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   271
	u32 hicr;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   272
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   273
	hdr.command_id = E1000_MNG_DHCP_TX_PAYLOAD_CMD;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   274
	hdr.command_length = length;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   275
	hdr.reserved1 = 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   276
	hdr.reserved2 = 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   277
	hdr.checksum = 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   278
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   279
	/* Enable the host interface */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   280
	ret_val = e1000_mng_enable_host_if(hw);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   281
	if (ret_val)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   282
		return ret_val;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   283
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   284
	/* Populate the host interface with the contents of "buffer". */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   285
	ret_val = e1000_mng_host_if_write(hw, buffer, length,
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   286
					  sizeof(hdr), &(hdr.checksum));
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   287
	if (ret_val)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   288
		return ret_val;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   289
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   290
	/* Write the manageability command header */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   291
	ret_val = e1000_mng_write_cmd_header(hw, &hdr);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   292
	if (ret_val)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   293
		return ret_val;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   294
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   295
	/* Tell the ARC a new command is pending. */
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   296
	hicr = er32(HICR);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   297
	ew32(HICR, hicr | E1000_HICR_C);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   298
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   299
	return 0;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   300
}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   301
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   302
/**
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   303
 *  e1000e_enable_mng_pass_thru - Check if management passthrough is needed
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   304
 *  @hw: pointer to the HW structure
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   305
 *
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   306
 *  Verifies the hardware needs to leave interface enabled so that frames can
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   307
 *  be directed to and from the management interface.
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   308
 **/
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   309
bool e1000e_enable_mng_pass_thru(struct e1000_hw *hw)
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   310
{
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   311
	u32 manc;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   312
	u32 fwsm, factps;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   313
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   314
	manc = er32(MANC);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   315
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   316
	if (!(manc & E1000_MANC_RCV_TCO_EN))
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   317
		return false;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   318
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   319
	if (hw->mac.has_fwsm) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   320
		fwsm = er32(FWSM);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   321
		factps = er32(FACTPS);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   322
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   323
		if (!(factps & E1000_FACTPS_MNGCG) &&
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   324
		    ((fwsm & E1000_FWSM_MODE_MASK) ==
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   325
		     (e1000_mng_mode_pt << E1000_FWSM_MODE_SHIFT)))
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   326
			return true;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   327
	} else if ((hw->mac.type == e1000_82574) ||
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   328
		   (hw->mac.type == e1000_82583)) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   329
		u16 data;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   330
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   331
		factps = er32(FACTPS);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   332
		e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data);
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   333
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   334
		if (!(factps & E1000_FACTPS_MNGCG) &&
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   335
		    ((data & E1000_NVM_INIT_CTRL2_MNGM) ==
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   336
		     (e1000_mng_mode_pt << 13)))
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   337
			return true;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   338
	} else if ((manc & E1000_MANC_SMBUS_EN) &&
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   339
		   !(manc & E1000_MANC_ASF_EN)) {
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   340
		return true;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   341
	}
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   342
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   343
	return false;
2b9c78543663 Reverted default branch to stable-1.5.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   344
}