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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan

hifive-unleashed-5.1
David S. Miller 2009-07-27 11:29:31 -07:00
parent c685bfc6c6 987b881666
commit f004ec728b
12 changed files with 255 additions and 57 deletions
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2
Documentation/networking/00-INDEX
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@ -60,6 +60,8 @@ framerelay.txt
- info on using Frame Relay/Data Link Connection Identifier (DLCI).
generic_netlink.txt
- info on Generic Netlink
ieee802154.txt
- Linux IEEE 802.15.4 implementation, API and drivers
ip-sysctl.txt
- /proc/sys/net/ipv4/* variables
ip_dynaddr.txt

2
Documentation/networking/ieee802154.txt
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@ -69,7 +69,7 @@ We provide an example of simple HardMAC driver at drivers/ieee802154/fakehard.c
SoftMAC
=======
We are going to provide intermediate layer impelementing IEEE 802.15.4 MAC
We are going to provide intermediate layer implementing IEEE 802.15.4 MAC
in software. This is currently WIP.
See header include/net/ieee802154/mac802154.h and several drivers in

128
drivers/ieee802154/fakehard.c
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@ -26,11 +26,17 @@
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <net/ieee802154/af_ieee802154.h>
#include <net/ieee802154/netdevice.h>
#include <net/ieee802154/mac_def.h>
#include <net/ieee802154/nl802154.h>
#include <net/af_ieee802154.h>
#include <net/ieee802154_netdev.h>
#include <net/ieee802154.h>
#include <net/nl802154.h>
/**
* fake_get_pan_id - Retrieve the PAN ID of the device.
* @dev: The network device to retrieve the PAN of.
*
* Return the ID of the PAN from the PIB.
*/
static u16 fake_get_pan_id(struct net_device *dev)
{
BUG_ON(dev->type != ARPHRD_IEEE802154);
@ -38,6 +44,14 @@ static u16 fake_get_pan_id(struct net_device *dev)
return 0xeba1;
}
/**
* fake_get_short_addr - Retrieve the short address of the device.
* @dev: The network device to retrieve the short address of.
*
* Returns the IEEE 802.15.4 short-form address cached for this
* device. If the device has not yet had a short address assigned
* then this should return 0xFFFF to indicate a lack of association.
*/
static u16 fake_get_short_addr(struct net_device *dev)
{
BUG_ON(dev->type != ARPHRD_IEEE802154);
@ -45,6 +59,19 @@ static u16 fake_get_short_addr(struct net_device *dev)
return 0x1;
}
/**
* fake_get_dsn - Retrieve the DSN of the device.
* @dev: The network device to retrieve the DSN for.
*
* Returns the IEEE 802.15.4 DSN for the network device.
* The DSN is the sequence number which will be added to each
* packet or MAC command frame by the MAC during transmission.
*
* DSN means 'Data Sequence Number'.
*
* Note: This is in section 7.2.1.2 of the IEEE 802.15.4-2006
* document.
*/
static u8 fake_get_dsn(struct net_device *dev)
{
BUG_ON(dev->type != ARPHRD_IEEE802154);
@ -52,6 +79,19 @@ static u8 fake_get_dsn(struct net_device *dev)
return 0x00; /* DSN are implemented in HW, so return just 0 */
}
/**
* fake_get_bsn - Retrieve the BSN of the device.
* @dev: The network device to retrieve the BSN for.
*
* Returns the IEEE 802.15.4 BSN for the network device.
* The BSN is the sequence number which will be added to each
* beacon frame sent by the MAC.
*
* BSN means 'Beacon Sequence Number'.
*
* Note: This is in section 7.2.1.2 of the IEEE 802.15.4-2006
* document.
*/
static u8 fake_get_bsn(struct net_device *dev)
{
BUG_ON(dev->type != ARPHRD_IEEE802154);
@ -59,6 +99,19 @@ static u8 fake_get_bsn(struct net_device *dev)
return 0x00; /* BSN are implemented in HW, so return just 0 */
}
/**
* fake_assoc_req - Make an association request to the HW.
* @dev: The network device which we are associating to a network.
* @addr: The coordinator with which we wish to associate.
* @channel: The channel on which to associate.
* @cap: The capability information field to use in the association.
*
* Start an association with a coordinator. The coordinator's address
* and PAN ID can be found in @addr.
*
* Note: This is in section 7.3.1 and 7.5.3.1 of the IEEE
* 802.15.4-2006 document.
*/
static int fake_assoc_req(struct net_device *dev,
struct ieee802154_addr *addr, u8 channel, u8 cap)
{
@ -67,18 +120,70 @@ static int fake_assoc_req(struct net_device *dev,
IEEE802154_SUCCESS);
}
/**
* fake_assoc_resp - Send an association response to a device.
* @dev: The network device on which to send the response.
* @addr: The address of the device to respond to.
* @short_addr: The assigned short address for the device (if any).
* @status: The result of the association request.
*
* Queue the association response of the coordinator to another
* device's attempt to associate with the network which we
* coordinate. This is then added to the indirect-send queue to be
* transmitted to the end device when it polls for data.
*
* Note: This is in section 7.3.2 and 7.5.3.1 of the IEEE
* 802.15.4-2006 document.
*/
static int fake_assoc_resp(struct net_device *dev,
struct ieee802154_addr *addr, u16 short_addr, u8 status)
{
return 0;
}
/**
* fake_disassoc_req - Disassociate a device from a network.
* @dev: The network device on which we're disassociating a device.
* @addr: The device to disassociate from the network.
* @reason: The reason to give to the device for being disassociated.
*
* This sends a disassociation notification to the device being
* disassociated from the network.
*
* Note: This is in section 7.5.3.2 of the IEEE 802.15.4-2006
* document, with the reason described in 7.3.3.2.
*/
static int fake_disassoc_req(struct net_device *dev,
struct ieee802154_addr *addr, u8 reason)
{
return ieee802154_nl_disassoc_confirm(dev, IEEE802154_SUCCESS);
}
/**
* fake_start_req - Start an IEEE 802.15.4 PAN.
* @dev: The network device on which to start the PAN.
* @addr: The coordinator address to use when starting the PAN.
* @channel: The channel on which to start the PAN.
* @bcn_ord: Beacon order.
* @sf_ord: Superframe order.
* @pan_coord: Whether or not we are the PAN coordinator or just
* requesting a realignment perhaps?
* @blx: Battery Life Extension feature bitfield.
* @coord_realign: Something to realign something else.
*
* If pan_coord is non-zero then this starts a network with the
* provided parameters, otherwise it attempts a coordinator
* realignment of the stated network instead.
*
* Note: This is in section 7.5.2.3 of the IEEE 802.15.4-2006
* document, with 7.3.8 describing coordinator realignment.
*
* Note: There is currently no way to notify the coordinator userland
* program of whether or not the PAN has started successfully. As
* such, the coordinator program cannot know when the MAC has
* completed starting the network and will simply have to assume
* completeness based on some form of time delay.
*/
static int fake_start_req(struct net_device *dev, struct ieee802154_addr *addr,
u8 channel,
u8 bcn_ord, u8 sf_ord, u8 pan_coord, u8 blx,
@ -87,6 +192,21 @@ static int fake_start_req(struct net_device *dev, struct ieee802154_addr *addr,
return 0;
}
/**
* fake_scan_req - Start a channel scan.
* @dev: The network device on which to perform a channel scan.
* @type: The type of scan to perform.
* @channels: The channel bitmask to scan.
* @duration: How long to spend on each channel.
*
* This starts either a passive (energy) scan or an active (PAN) scan
* on the channels indicated in the @channels bitmask. The duration of
* the scan is measured in terms of superframe duration. Specifically,
* the scan will spend aBaseSuperFrameDuration * ((2^n) + 1) on each
* channel.
*
* Note: This is in section 7.5.2.1 of the IEEE 802.15.4-2006 document.
*/
static int fake_scan_req(struct net_device *dev, u8 type, u32 channels,
u8 duration)
{

0
include/net/ieee802154/af_ieee802154.h → include/net/af_ieee802154.h
View File

4
include/net/ieee802154/mac_def.h → include/net/ieee802154.h
View File

@ -23,8 +23,8 @@
* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
*/
#ifndef IEEE802154_MAC_DEF_H
#define IEEE802154_MAC_DEF_H
#ifndef NET_IEEE802154_H
#define NET_IEEE802154_H
#define IEEE802154_FC_TYPE_BEACON 0x0 /* Frame is beacon */
#define IEEE802154_FC_TYPE_DATA 0x1 /* Frame is data */

41
include/net/ieee802154/nl802154.h
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@ -1,41 +0,0 @@
/*
* nl802154.h
*
* Copyright (C) 2007, 2008, 2009 Siemens AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#ifndef IEEE802154_NL_H
#define IEEE802154_NL_H
struct net_device;
struct ieee802154_addr;
int ieee802154_nl_assoc_indic(struct net_device *dev,
struct ieee802154_addr *addr, u8 cap);
int ieee802154_nl_assoc_confirm(struct net_device *dev,
u16 short_addr, u8 status);
int ieee802154_nl_disassoc_indic(struct net_device *dev,
struct ieee802154_addr *addr, u8 reason);
int ieee802154_nl_disassoc_confirm(struct net_device *dev,
u8 status);
int ieee802154_nl_scan_confirm(struct net_device *dev,
u8 status, u8 scan_type, u32 unscanned,
u8 *edl/*, struct list_head *pan_desc_list */);
int ieee802154_nl_beacon_indic(struct net_device *dev, u16 panid,
u16 coord_addr);
#endif

0
include/net/ieee802154/netdevice.h → include/net/ieee802154_netdev.h
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117
include/net/nl802154.h 100644
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@ -0,0 +1,117 @@
/*
* nl802154.h
*
* Copyright (C) 2007, 2008, 2009 Siemens AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#ifndef IEEE802154_NL_H
#define IEEE802154_NL_H
struct net_device;
struct ieee802154_addr;
/**
* ieee802154_nl_assoc_indic - Notify userland of an association request.
* @dev: The network device on which this association request was
* received.
* @addr: The address of the device requesting association.
* @cap: The capability information field from the device.
*
* This informs a userland coordinator of a device requesting to
* associate with the PAN controlled by the coordinator.
*
* Note: This is in section 7.3.1 of the IEEE 802.15.4-2006 document.
*/
int ieee802154_nl_assoc_indic(struct net_device *dev,
struct ieee802154_addr *addr, u8 cap);
/**
* ieee802154_nl_assoc_confirm - Notify userland of association.
* @dev: The device which has completed association.
* @short_addr: The short address assigned to the device.
* @status: The status of the association.
*
* Inform userland of the result of an association request. If the
* association request included asking the coordinator to allocate
* a short address then it is returned in @short_addr.
*
* Note: This is in section 7.3.2 of the IEEE 802.15.4 document.
*/
int ieee802154_nl_assoc_confirm(struct net_device *dev,
u16 short_addr, u8 status);
/**
* ieee802154_nl_disassoc_indic - Notify userland of disassociation.
* @dev: The device on which disassociation was indicated.
* @addr: The device which is disassociating.
* @reason: The reason for the disassociation.
*
* Inform userland that a device has disassociated from the network.
*
* Note: This is in section 7.3.3 of the IEEE 802.15.4 document.
*/
int ieee802154_nl_disassoc_indic(struct net_device *dev,
struct ieee802154_addr *addr, u8 reason);
/**
* ieee802154_nl_disassoc_confirm - Notify userland of disassociation
* completion.
* @dev: The device on which disassociation was ordered.
* @status: The result of the disassociation.
*
* Inform userland of the result of requesting that a device
* disassociate, or the result of requesting that we disassociate from
* a PAN managed by another coordinator.
*
* Note: This is in section 7.1.4.3 of the IEEE 802.15.4 document.
*/
int ieee802154_nl_disassoc_confirm(struct net_device *dev,
u8 status);
/**
* ieee802154_nl_scan_confirm - Notify userland of completion of scan.
* @dev: The device which was instructed to scan.
* @status: The status of the scan operation.
* @scan_type: What type of scan was performed.
* @unscanned: Any channels that the device was unable to scan.
* @edl: The energy levels (if a passive scan).
*
*
* Note: This is in section 7.1.11 of the IEEE 802.15.4 document.
* Note: This API does not permit the return of an active scan result.
*/
int ieee802154_nl_scan_confirm(struct net_device *dev,
u8 status, u8 scan_type, u32 unscanned,
u8 *edl/*, struct list_head *pan_desc_list */);
/**
* ieee802154_nl_beacon_indic - Notify userland of a received beacon.
* @dev: The device on which a beacon was received.
* @panid: The PAN of the coordinator.
* @coord_addr: The short address of the coordinator on that PAN.
*
* Note: This is in section 7.1.5 of the IEEE 802.15.4 document.
* Note: This API does not provide extended information such as what
* channel the PAN is on or what the LQI of the beacon frame was on
* receipt.
* Note: This API cannot indicate a beacon frame for a coordinator
* operating in long addressing mode.
*/
int ieee802154_nl_beacon_indic(struct net_device *dev, u16 panid,
u16 coord_addr);
#endif

4
net/ieee802154/af_ieee802154.c
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@ -34,8 +34,8 @@
#include <net/tcp_states.h>
#include <net/route.h>
#include <net/ieee802154/af_ieee802154.h>
#include <net/ieee802154/netdevice.h>
#include <net/af_ieee802154.h>
#include <net/ieee802154_netdev.h>
#include "af802154.h"

6
net/ieee802154/dgram.c
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@ -26,9 +26,9 @@
#include <linux/if_arp.h>
#include <linux/list.h>
#include <net/sock.h>
#include <net/ieee802154/af_ieee802154.h>
#include <net/ieee802154/mac_def.h>
#include <net/ieee802154/netdevice.h>
#include <net/af_ieee802154.h>
#include <net/ieee802154.h>
#include <net/ieee802154_netdev.h>
#include <asm/ioctls.h>

6
net/ieee802154/netlink.c
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@ -27,9 +27,9 @@
#include <net/netlink.h>
#include <net/genetlink.h>
#include <linux/nl802154.h>
#include <net/ieee802154/af_ieee802154.h>
#include <net/ieee802154/nl802154.h>
#include <net/ieee802154/netdevice.h>
#include <net/af_ieee802154.h>
#include <net/nl802154.h>
#include <net/ieee802154_netdev.h>
static unsigned int ieee802154_seq_num;

2
net/ieee802154/raw.c
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@ -26,7 +26,7 @@
#include <linux/if_arp.h>
#include <linux/list.h>
#include <net/sock.h>
#include <net/ieee802154/af_ieee802154.h>
#include <net/af_ieee802154.h>
#include "af802154.h"