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[settings] Add Bus ID setting

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Users can find the bus type and PCI IDs for a network interface with:

netX/busid

Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
This commit is contained in:
Shao Miller
2009-11-09 08:57:23 -05:00
committed by Stefan Hajnoczi
parent 70928aeaa0
commit 177389fb73
3 changed files with 21 additions and 4 deletions
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18
src/net/netdev_settings.c
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@@ -20,8 +20,10 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <string.h>
#include <errno.h>
#include <byteswap.h>
#include <gpxe/dhcp.h>
#include <gpxe/settings.h>
#include <gpxe/device.h>
#include <gpxe/netdevice.h>
/** @file
@@ -36,6 +38,11 @@ struct setting mac_setting __setting = {
.description = "MAC address",
.type = &setting_type_hex,
};
struct setting busid_setting __setting = {
.name = "busid",
.description = "Bus ID",
.type = &setting_type_hex,
};
/**
* Store value of network device setting
@@ -74,6 +81,8 @@ static int netdev_fetch ( struct settings *settings, struct setting *setting,
void *data, size_t len ) {
struct net_device *netdev = container_of ( settings, struct net_device,
settings.settings );
struct device_description *desc = &netdev->dev->desc;
struct dhcp_netdev_desc dhcp_desc;
if ( setting_cmp ( setting, &mac_setting ) == 0 ) {
if ( len > netdev->ll_protocol->ll_addr_len )
@@ -81,6 +90,15 @@ static int netdev_fetch ( struct settings *settings, struct setting *setting,
memcpy ( data, netdev->ll_addr, len );
return netdev->ll_protocol->ll_addr_len;
}
if ( setting_cmp ( setting, &busid_setting ) == 0 ) {
dhcp_desc.type = desc->bus_type;
dhcp_desc.vendor = htons ( desc->vendor );
dhcp_desc.device = htons ( desc->device );
if ( len > sizeof ( dhcp_desc ) )
len = sizeof ( dhcp_desc );
memcpy ( data, &dhcp_desc, len );
return sizeof ( dhcp_desc );
}
return generic_settings_fetch ( settings, setting, data, len );
}