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path: root/include/linux/netdevice.h
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* Merge branch 'upstream-linus' of ↵Linus Torvalds2007-10-18
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: pcnet32: remove private net_device_stats structure vortex_up should initialize "err" pcnet32: remove compile warnings in non-napi mode pcnet32: fix non-napi packet reception fix EMAC driver for proper napi_synchronize API sky2: shutdown cleanup napi_synchronize: waiting for NAPI forcedeth msi bugfix gianfar: fix obviously wrong #ifdef CONFIG_GFAR_NAPI placement fs_enet: Update for API changes gianfar: remove orphan struct. forcedeth: fix rx-work condition in nv_rx_process_optimized() too
| * napi_synchronize: waiting for NAPIStephen Hemminger2007-10-17
| | | | | | | | | | | | | | | | Some drivers with shared NAPI need a synchronization barrier. Also suggested by Benjamin Herrenschmidt for EMAC. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | [NET]: Fix OOPS due to missing check in dev_parse_header().Patrick McHardy2007-10-18
|/ | | | | | | | | | | [ This is kernel bugzilla 9174 "linux-2.6.23-git11 kernel panic" ] The device in question is an IPv6-over-IPv4 tunnel, which doesn't have any header_ops, so the crash happens in dev_parse_header when dereferencing them. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* net core: fix kernel-doc for new function parametersRandy Dunlap2007-10-13
| | | | | | | | | | | | | | | | | | | | | Fix networking code kernel-doc for newly added parameters. Warning(linux-2.6.23-git2//net/core/sock.c:879): No description found for parameter 'net' Warning(linux-2.6.23-git2//net/core/dev.c:570): No description found for parameter 'net' Warning(linux-2.6.23-git2//net/core/dev.c:594): No description found for parameter 'net' Warning(linux-2.6.23-git2//net/core/dev.c:617): No description found for parameter 'net' Warning(linux-2.6.23-git2//net/core/dev.c:641): No description found for parameter 'net' Warning(linux-2.6.23-git2//net/core/dev.c:667): No description found for parameter 'net' Warning(linux-2.6.23-git2//net/core/dev.c:722): No description found for parameter 'net' Warning(linux-2.6.23-git2//net/core/dev.c:959): No description found for parameter 'net' Warning(linux-2.6.23-git2//net/core/dev.c:1195): No description found for parameter 'dev' Warning(linux-2.6.23-git2//net/core/dev.c:2105): No description found for parameter 'n' Warning(linux-2.6.23-git2//net/core/dev.c:3272): No description found for parameter 'net' Warning(linux-2.6.23-git2//net/core/dev.c:3445): No description found for parameter 'net' Warning(linux-2.6.23-git2//include/linux/netdevice.h:1301): No description found for parameter 'cpu' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [NET]: Fix dev_put() and dev_hold() commentsBenjamin Thery2007-10-11
| | | | | | | | | Trivial fix: Swap comments for dev_put() and dev_hold() to get them at the right place. Typo introduced by 4fa57c9ea9f36f9ca852f3a88ca5d2f1aebbc960. Signed-of-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibm_emac: Convert to use napi_struct independent of struct net_deviceRoland Dreier2007-10-10
| | | | | | | | | | | | | | Commit da3dedd9 ("[NET]: Make NAPI polling independent of struct net_device objects.") changed the interface to NAPI polling. Fix up the ibm_emac driver so that it works with this new interface. This is actually a nice cleanup because ibm_emac is one of the drivers that wants to have multiple NAPI structures for a single net_device. Tested with the internal MAC of a PowerPC 440SPe SoC with an AMCC 'Yucca' evaluation board. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [NET]: Move hardware header operations out of netdevice.Stephen Hemminger2007-10-10
| | | | | | | | | Since hardware header operations are part of the protocol class not the device instance, make them into a separate object and save memory. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Wrap hard_header_parseStephen Hemminger2007-10-10
| | | | | | | | Wrap the hard_header_parse function to simplify next step of header_ops conversion. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Wrap netdevice hardware header creation.Stephen Hemminger2007-10-10
| | | | | | | | | | Add inline for common usage of hardware header creation, and fix bug in IPV6 mcast where the assumption about negative return is an errno. Negative return from hard_header means not enough space was available,(ie -N bytes). Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Make the loopback device per network namespace.Eric W. Biederman2007-10-10
| | | | | | | | | | | | | | | | This patch makes loopback_dev per network namespace. Adding code to create a different loopback device for each network namespace and adding the code to free a loopback device when a network namespace exits. This patch modifies all users the loopback_dev so they access it as init_net.loopback_dev, keeping all of the code compiling and working. A later pass will be needed to update the users to use something other than the initial network namespace. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: note that NETIF_F_LLTX is deprecatedChristian Borntraeger2007-10-10
| | | | | | | | | | | | | | | Am Freitag, 21. September 2007 schrieb Herbert Xu: > Please don't use LLTX in new drivers. We're trying to get rid > of it since it's > > 1) unnecessary; > 2) causes problems with AF_PACKET seeing things twice. I suggest to document that LLTX is deprecated. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Dynamically allocate the loopback device, part 1.Daniel Lezcano2007-10-10
| | | | | | | | | | | | | This patch replaces all occurences to the static variable loopback_dev to a pointer loopback_dev. That provides the mindless, trivial, uninteressting change part for the dynamic allocation for the loopback. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-By: Kirill Korotaev <dev@sw.ru> Acked-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix the prototype of call_netdevice_notifiers.Eric W. Biederman2007-10-10
| | | | | | | | This replaces the void * parameter with a struct net_device * which is what is actually required. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: migrate HARD_TX_LOCK to header fileJamal Hadi Salim2007-10-10
| | | | | | | | | | HARD_TX_LOCK micro is a nice aggregation that could be used in other spots. move it to netdevice.h Also makes sure the previously superflous cpu arguement is used. Thanks to DaveM for the suggestions. Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Nuke SET_MODULE_OWNER macro.Ralf Baechle2007-10-10
| | | | | | | | | | | | It's been a useless no-op for long enough in 2.6 so I figured it's time to remove it. The number of people that could object because they're maintaining unified 2.4 and 2.6 drivers is probably rather small. [ Handled drivers added by netdev tree and some missed IRDA cases... -DaveM ] Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETNS]: Fix bad macro definition.Daniel Lezcano2007-10-10
| | | | | | | | | | | | | | The macro definition is bad. When calling next_net_device with parameter name "dev", the resulting code is: struct net_device *dev = dev and that leads to an unexpected behavior. Especially when llc_core is compiled in, the kernel panics at boot time. The patchset change macro definition with static inline functions as they were defined before. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Implement network device movement between namespacesEric W. Biederman2007-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces NETIF_F_NETNS_LOCAL a flag to indicate a network device is local to a single network namespace and should never be moved. Useful for pseudo devices that we need an instance in each network namespace (like the loopback device) and for any device we find that cannot handle multiple network namespaces so we may trap them in the initial network namespace. This patch introduces the function dev_change_net_namespace a function used to move a network device from one network namespace to another. To the network device nothing special appears to happen, to the components of the network stack it appears as if the network device was unregistered in the network namespace it is in, and a new device was registered in the network namespace the device was moved to. This patch sets up a namespace device destructor that upon the exit of a network namespace moves all of the movable network devices to the initial network namespace so they are not lost. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Make the device list and device lookups per namespace.Eric W. Biederman2007-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes most of the generic device layer network namespace safe. This patch makes dev_base_head a network namespace variable, and then it picks up a few associated variables. The functions: dev_getbyhwaddr dev_getfirsthwbytype dev_get_by_flags dev_get_by_name __dev_get_by_name dev_get_by_index __dev_get_by_index dev_ioctl dev_ethtool dev_load wireless_process_ioctl were modified to take a network namespace argument, and deal with it. vlan_ioctl_set and brioctl_set were modified so their hooks will receive a network namespace argument. So basically anthing in the core of the network stack that was affected to by the change of dev_base was modified to handle multiple network namespaces. The rest of the network stack was simply modified to explicitly use &init_net the initial network namespace. This can be fixed when those components of the network stack are modified to handle multiple network namespaces. For now the ifindex generator is left global. Fundametally ifindex numbers are per namespace, or else we will have corner case problems with migration when we get that far. At the same time there are assumptions in the network stack that the ifindex of a network device won't change. Making the ifindex number global seems a good compromise until the network stack can cope with ifindex changes when you change namespaces, and the like. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Add a network namespace tag to struct net_deviceEric W. Biederman2007-10-10
| | | | | | | | | | | Please note that network devices do not increase the count count on the network namespace. The are inside the network namespace and so the network namespace tag is in the nature of a back pointer and so getting and putting the network namespace is unnecessary. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ETHTOOL]: Add ETHTOOL_[GS]FLAGS sub-ioctlsJeff Garzik2007-10-10
| | | | | Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Make NAPI polling independent of struct net_device objects.Stephen Hemminger2007-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Share correct feature code between bridging and bondingHerbert Xu2007-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=8797 shows that the bonding driver may produce bogus combinations of the checksum flags and SG/TSO. For example, if you bond devices with NETIF_F_HW_CSUM and NETIF_F_IP_CSUM you'll end up with a bonding device that has neither flag set. If both have TSO then this produces an illegal combination. The bridge device on the other hand has the correct code to deal with this. In fact, the same code can be used for both. So this patch moves that logic into net/core/dev.c and uses it for both bonding and bridging. In the process I've made small adjustments such as only setting GSO_ROBUST if at least one constituent device supports it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix loopback crashes when multiqueue is enabled.Patrick McHardy2007-07-20
| | | | | | | From: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: move dev_mc_discard from dev_mcast.c to dev.cDenis Cheng2007-07-18
| | | | | | | | | | | | | | | | | | | | Because this function is only called by unregister_netdevice, this moving could make this non-global function static, and also remove its declaration in netdevice.h; Any further, function __dev_addr_discard is also just called by dev_mc_discard and dev_unicast_discard, keeping this two functions both in one c file could make __dev_addr_discard also static and remove its declaration in netdevice.h; Futhermore, the sequential call to dev_unicast_discard and then dev_mc_discard in unregister_netdevice have a similar mechanism that: (netif_tx_lock_bh / __dev_addr_discard / netif_tx_unlock_bh), they should merged into one to eliminate duplicates in acquiring and releasing the dev->_xmit_lock, this would be done in my following patch. Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Revert "[NET]: Fix races in net_rx_action vs netpoll."Linus Torvalds2007-07-16
| | | | | | | | | | | | | | This reverts commit 29578624e354f56143d92510fff33a8b2aaa2c03. Ingo Molnar reports complete breakage with his e1000 card (no networking, card reports transmit timeouts), and bisected it down to this commit. Let's figure out what went wrong, but not keep breaking machines until we do. Cc: Ingo Molnar <mingo@elte.hu> Cc: Olaf Kirch <olaf.kirch@oracle.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [NET]: Add macvlan driverPatrick McHardy2007-07-14
| | | | | | | | Add macvlan driver, which allows to create virtual ethernet devices based on MAC address. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: dev_mcast: add multicast list synchronization helpersPatrick McHardy2007-07-14
| | | | | | | | | | | | | | | | | | | | The method drivers currently use to synchronize multicast lists is not very pretty: - walk the multicast list - search each entry on a copy of the previous list - if new add to lower device - walk the copy of the previous list - search each entry on the current list - if removed delete from lower device - copy entire list This patch adds a new field to struct dev_addr_list to store the synchronization state and adds two helper functions for synchronization and cleanup. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Add net_device change_rx_mode callbackPatrick McHardy2007-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the set_multicast_list (and set_rx_mode) callbacks are responsible for configuring the device according to the IFF_PROMISC, IFF_MULTICAST and IFF_ALLMULTI flags and the mc_list (and uc_list in case of set_rx_mode). These callbacks can be invoked from BH context without the rtnl_mutex by dev_mc_add/dev_mc_delete, which makes reading the device flags and promiscous/allmulti count racy. For real hardware drivers that just commit all changes to the hardware this is not a real problem since the stack guarantees to call them for every change, so at least the final call will not race and commit the correct configuration to the hardware. For software devices that want to synchronize promiscous and multicast state to an underlying device however this can cause corruption of the underlying device's flags or promisc/allmulti counts. When the software device is concurrently put in promiscous or allmulti mode while set_multicast_list is invoked from bottem half context, the device might synchronize the change to the underlying device without holding the rtnl_mutex, which races with concurrent changes to the underlying device. Add a dev->change_rx_flags hook that is invoked when any of the flags that affect rx filtering change (under the rtnl_mutex), which allows drivers to perform synchronization immediately and only synchronize the address lists in set_multicast_list/set_rx_mode. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix races in net_rx_action vs netpoll.Olaf Kirch2007-07-11
| | | | | | | | Keep netpoll/poll_napi from messing with the poll_list. Only net_rx_action is allowed to manipulate the list. Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix secondary unicast/multicast address count maintenancePatrick McHardy2007-07-11
| | | | | | | | When a reference to an existing address is increased or decreased without hitting zero, the address count is incorrectly adjusted. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CORE] Stack changes to add multiqueue hardware support APIPeter P Waskiewicz Jr2007-07-11
| | | | | | | | | | | | | Add the multiqueue hardware device support API to the core network stack. Allow drivers to allocate multiple queues and manage them at the netdev level if they choose to do so. Added a new field to sk_buff, namely queue_mapping, for drivers to know which tx_ring to select based on OS classification of the flow. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: dev: secondary unicast address supportPatrick McHardy2007-07-11
| | | | | | | | | | | | Add support for configuring secondary unicast addresses on network devices. To support this devices capable of filtering multiple unicast addresses need to change their set_multicast_list function to configure unicast filters as well and assign it to dev->set_rx_mode instead of dev->set_multicast_list. Other devices are put into promiscous mode when secondary unicast addresses are present. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: dev_mcast: switch to generic net_device address listsPatrick McHardy2007-07-11
| | | | | | | | Use generic net_device address lists for multicast list handling. Some defines are used to keep drivers working. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: dev: introduce generic net_device address listsPatrick McHardy2007-07-11
| | | | | | | | | | Introduce struct dev_addr_list and list maintenance functions based on dev_mc_list and the related functions. This will be used by follow-up patches for both multicast and secondary unicast addresses. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: IPV6 checksum offloading in network devicesStephen Hemminger2007-07-11
| | | | | | | | | | | | | | | The existing model for checksum offload does not correctly handle devices that can offload IPV4 and IPV6 only. The NETIF_F_HW_CSUM flag implies device can do any arbitrary protocol. This patch: * adds NETIF_F_IPV6_CSUM for those devices * fixes bnx2 and tg3 devices that need it * add NETIF_F_IPV6_CSUM to ipv6 output (incl GSO) * fixes assumptions about NETIF_F_ALL_CSUM in nat * adjusts bridge union of checksumming computation Signed-off-by: David S. Miller <davem@davemloft.net>
* [RTNETLINK]: Link creation APIPatrick McHardy2007-07-11
| | | | | | | Add rtnetlink API for creating, changing and deleting software devices. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Mark struct net_device * argument to netdev_priv constPatrick McHardy2007-07-11
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] napi: Call __netif_rx_complete in netif_rx_completeHerbert Xu2007-05-31
| | | | | | | | This patch kills a little bit of code duplication between the two variants of netif_rx_complete. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] link_watch: Move link watch list into net_deviceHerbert Xu2007-05-11
| | | | | | | | | | | | | | | | | | | | | These days the link watch mechanism is an integral part of the network subsystem as it manages the carrier status. So it now makes sense to allocate some memory for it in net_device rather than allocating it on demand. In fact, this is necessary because we can't tolerate a memory allocation failure since that means we'd have to potentially throw a link up event away. It also simplifies the code greatly. In doing so I discovered a subtle race condition in the use of singleevent. This race condition still exists (and is somewhat magnified) without singleevent but it's now plugged thanks to an smp_mb__before_clear_bit. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Rework dev_base via list_head (v3)Pavel Emelianov2007-05-03
| | | | | | | | | | | | Cleanup of dev_base list use, with the aim to simplify making device list per-namespace. In almost every occasion, use of dev_base variable and dev->next pointer could be easily replaced by for_each_netdev loop. A few most complicated places were converted to using first_netdev()/next_netdev(). Signed-off-by: Pavel Emelianov <xemul@openvz.org> Acked-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Add __dev_getfirstbyhwtypePatrick McHardy2007-05-03
| | | | | | | | | Add __dev_getfirstbyhwtype for callers that don't want a reference but some data from the device and thus need to take the rtnl anyway. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Remove NETIF_F_INTERNAL_STATS, default to internal stats.Rusty Russell2007-04-29
| | | | | | | | | | | Herbert Xu conviced me that a new flag was overkill; every driver currently overrides get_stats, so we might as well make the internal one the default. If someone did fail to set get_stats, they would now get all 0 stats instead of "No statistics available". Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETPOLL]: Fix TX queue overflow in trapped mode.Sergei Shtylyov2007-04-28
| | | | | | | | | | | | | CONFIG_NETPOLL_TRAP causes the TX queue controls to be completely bypassed in the netpoll's "trapped" mode which easily causes overflows in the drivers with short TX queues (most notably, in 8139too with its 4-deep queue). So, make this option more sensible by making it only bypass the TX softirq wakeup. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: Jeff Garzik <jgarzik@pobox.com> Acked-by: Tom Rini <trini@kernel.crashing.org> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [WEXT] net_device: Don't include wext bits if not required.Johannes Berg2007-04-26
| | | | | | | | | This patch makes the wext bits in struct net_device depend on CONFIG_WIRELESS_EXT. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [WIRELESS] cfg80211: New wireless config infrastructure.Johannes Berg2007-04-26
| | | | | | | | | | | | | | | This patch creates the core cfg80211 code along with some sysfs bits. This is a stripped down version to allow mac80211 to function, but doesn't include any configuration yet except for creating and removing virtual interfaces. This patch includes the nl80211 header file but it only contains the interface types which the cfg80211 interface for creating virtual interfaces relies on. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Inline net_device_statsRusty Russell2007-04-26
| | | | | | | | | | | | | | | | | | | | Network drivers which keep stats allocate their own stats structure then write a get_stats() function to return them. It would be nice if this were done by default. 1) Add a new "stats" field to "struct net_device". 2) Add a new feature field to say "this driver uses the internal one" 3) Have a default "get_stats" which returns NULL if that feature not set. 4) Change callers to check result of get_stats call for NULL, not if ->get_stats is set. This should not break backwards compatibility with older drivers, yet allow modern drivers to shed some boilerplate code. Lightly tested: works for a modified lguest network driver. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: unregister_netdevice as voidStephen Hemminger2007-02-08
| | | | | | | | | There was no real useful information from the unregister_netdevice() return code, the only error occurred in a situation that was a driver bug. So change it to a void function. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Network: convert network devices to use struct device instead of class_deviceGreg Kroah-Hartman2007-02-07
| | | | | | | | | | | This lets the network core have the ability to handle suspend/resume issues, if it wants to. Thanks to Frederik Deweerdt <frederik.deweerdt@gmail.com> for the arm driver fixes. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [NET]: Add memory barrrier to netif_poll_enable()David S. Miller2006-12-31
| | | | | | | | | | When a driver writer calls this, they generally expect that all previous stores and modifications they've made will be visible before netif_poll_enable() executes, so ensure this. Noticed by Ben H. Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Force a cache line split in hh_cache in SMP.Eric Dumazet2006-12-08
| | | | | | | | | | | hh_lock was converted from rwlock to seqlock by Stephen. To have a 100% benefit of this change, I suggest to place read mostly fields of hh_cache in a separate cache line, because hh_refcnt may be changed quite frequently on some busy machines. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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