- 11 Nov, 2009 22 commits
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Eric Dumazet authored
Apparently, inet6_dump_addr() is not able to handle more than 64 ipv6 addresses per device. We must break from inner loops in case skb is full, or else cursor is put at the end of list. Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
When handling large number of netdevice, inet6_dump_ifinfo() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the 256 sub lists of the dev_index hash table, and RCU lookups. Signed-off-by:
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Cyrill Gorcunov authored
Use guard DECLARE_SOCKADDR in a few more places which allow us to catch if the structure copied back is too big. Signed-off-by:
Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by:
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Ben Hutchings authored
Some usbnet drivers update link state while others do not due to hardware limitations. Add a flag to distinguish those that do, and set the link down initially for their devices. This is intended to fix this bug: http://bugs.debian.org/444043Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
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Marin Mitov authored
Use DMA_BIT_MASK(44) instead of deprecated DMA_44BIT_MASK Signed-off-by:
Marin Mitov <mitov@issp.bas.bg> Signed-off-by:
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Eric Dumazet authored
UDP bind() can be O(N^2) in some pathological cases. Thanks to secondary hash tables, we can make it O(N) Signed-off-by:
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Eilon Greenstein authored
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Eilon Greenstein <eilong@broadcom.com> Signed-off-by:
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Eilon Greenstein authored
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Eilon Greenstein authored
Failing to allocate MSI-X vectors is not an error and should not be printed as such Signed-off-by:
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Eilon Greenstein authored
Making sure that whenever the FW/HW is configured for GSO, it is also configured to CSUM offload Signed-off-by:
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Rémi Denis-Courmont authored
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Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by:
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Rémi Denis-Courmont authored
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Ben Hutchings authored
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Ben Hutchings authored
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Ben Hutchings authored
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Ben Hutchings authored
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Ben Hutchings authored
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Ben Hutchings authored
Replace run-time string formatting with preprocessor string manipulation. Signed-off-by:
Divy Le Ray <divy@chelsio.com> Signed-off-by:
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Ben Hutchings authored
Replace run-time string formatting with preprocessor string manipulation. Signed-off-by:
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Ben Hutchings authored
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Ben Hutchings authored
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Ben Hutchings authored
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Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by:
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- 09 Nov, 2009 14 commits
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David S. Miller authored
Conflicts: drivers/net/can/usb/ems_usb.c
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Yury Polyanskiy authored
This fixes the following bug in the current implementation of net/xfrm: SAD entries timeouts do not count the time spent by the machine in the suspended state. This leads to the connectivity problems because after resuming local machine thinks that the SAD entry is still valid, while it has already been expired on the remote server. The cause of this is very simple: the timeouts in the net/xfrm are bound to the old mod_timer() timers. This patch reassigns them to the CLOCK_REALTIME hrtimer. I have been using this version of the patch for a few months on my machines without any problems. Also run a few stress tests w/o any issues. This version of the patch uses tasklet_hrtimer by Peter Zijlstra (commit 9ba5f0). This patch is against 2.6.31.4. Please CC me. Signed-off-by:
Yury Polyanskiy <polyanskiy@gmail.com> Signed-off-by:
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Arnd Bergmann authored
This adds compat_ioctl support for SIOCWANDEV, which has always been missing. The definition of struct compat_ifreq was missing an ifru_settings fields that is needed to support SIOCWANDEV, so add that and clean up the whitespace damage in the struct definition. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Arnd Bergmann authored
SIOCGMIIPHY and SIOCGMIIREG return data through ifreq, so it needs to be converted on the way out as well. SIOCGIFPFLAGS is unused, but has the same problem in theory. Signed-off-by:
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Eric Dumazet authored
When skb_clone() fails, we should increment sk_drops and SNMP counters. Signed-off-by:
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Eric Dumazet authored
IPV6 UDP multicast rx path is a bit complex and can hold a spinlock for a long time. Using a small (32 or 64 entries) stack of socket pointers can help to perform expensive operations (skb_clone(), udp_queue_rcv_skb()) outside of the lock, in most cases. Signed-off-by:
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Eric Dumazet authored
UDP multicast rx path is a bit complex and can hold a spinlock for a long time. Using a small (32 or 64 entries) stack of socket pointers can help to perform expensive operations (skb_clone(), udp_queue_rcv_skb()) outside of the lock, in most cases. It's also a base for a future RCU conversion of multicast recption. Signed-off-by:
Lucian Adrian Grijincu <lgrijincu@ixiacom.com> Signed-off-by:
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Eric Dumazet authored
We first locate the (local port) hash chain head If few sockets are in this chain, we proceed with previous lookup algo. If too many sockets are listed, we take a look at the secondary (port, address) hash chain. We choose the shortest chain and proceed with a RCU lookup on the elected chain. But, if we chose (port, address) chain, and fail to find a socket on given address, we must try another lookup on (port, in6addr_any) chain to find sockets not bound to a particular IP. -> No extra cost for typical setups, where the first lookup will probabbly be performed. RCU lookups everywhere, we dont acquire spinlock. Signed-off-by:
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Eric Dumazet authored
We first locate the (local port) hash chain head If few sockets are in this chain, we proceed with previous lookup algo. If too many sockets are listed, we take a look at the secondary (port, address) hash chain we added in previous patch. We choose the shortest chain and proceed with a RCU lookup on the elected chain. But, if we chose (port, address) chain, and fail to find a socket on given address, we must try another lookup on (port, INADDR_ANY) chain to find socket not bound to a particular IP. -> No extra cost for typical setups, where the first lookup will probabbly be performed. RCU lookups everywhere, we dont acquire spinlock. Signed-off-by:
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Eric Dumazet authored
Extends udp_table to contain a secondary hash table. socket anchor for this second hash is free, because UDP doesnt use skc_bind_node : We define an union to hold both skc_bind_node & a new hlist_nulls_node udp_portaddr_node udp_lib_get_port() inserts sockets into second hash chain (additional cost of one atomic op) udp_lib_unhash() deletes socket from second hash chain (additional cost of one atomic op) Note : No spinlock lockdep annotation is needed, because lock for the secondary hash chain is always get after lock for primary hash chain. Signed-off-by:
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Eric Dumazet authored
Union sk_hash with two u16 hashes for udp (no extra memory taken) One 16 bits hash on (local port) value (the previous udp 'hash') One 16 bits hash on (local address, local port) values, initialized but not yet used. This second hash is using jenkin hash for better distribution. Because the 'port' is xored later, a partial hash is performed on local address + net_hash_mix(net) Signed-off-by:
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Eric Dumazet authored
Adds a counter in udp_hslot to keep an accurate count of sockets present in chain. This will permit to upcoming UDP lookup algo to chose the shortest chain when secondary hash is added. Signed-off-by:
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Stephen Rothwell authored
Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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- 08 Nov, 2009 4 commits
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Christian Pellegrin authored
Signed-off-by:
Christian Pellegrin <chripell@fsfe.org> Signed-off-by:
Wolfgang Grandegger <wg@grandegger.com> Signed-off-by:
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Eric W. Biederman authored
There is no good reason to not support userspace specifying the network namespace during device creation, and it makes it easier to create a network device and pass it to a child network namespace with a well known name. We have to be careful to ensure that the target network namespace for the new device exists through the life of the call. To keep that logic clear I have factored out the network namespace grabbing logic into rtnl_link_get_net. In addtion we need to continue to pass the source network namespace to the rtnl_link_ops.newlink method so that we can find the base device source network namespace. Signed-off-by:
Eric W. Biederman <ebiederm@aristanetworks.com> Acked-by:
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Sebastian Siewior authored
or it will taint the kernel and fail to load becuase of_address_to_resource() is GPL only. Signed-off-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by:
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Wolfgang Grandegger authored
On older kernels, e.g. 2.6.27, a WARN_ON dump in rtmsg_ifinfo() is thrown when the CAN device is registered due to insufficient skb space, as reported by various users. This patch adds the rtnl_link_ops "get_size" to fix the problem. I think this patch is required for more recent kernels as well, even if no WARN_ON dumps are triggered. Maybe we also need "get_xstats_size" for the CAN xstats. Signed-off-by:
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