- 19 Sep, 2010 6 commits
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Bandan Das authored
Related dicussion here : http://lkml.org/lkml/2010/9/3/16 Introduce a function br_parse_ip_options that will audit the skb and possibly refill IP options before a packet enters the IP stack. If no options are present, the function will zero out the skb cb area so that it is not misinterpreted as options by some unsuspecting IP layer routine. If packet consistency fails, drop it. Signed-off-by:
Bandan Das <bandan.das@stratus.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Dan Carpenter authored
This is basically just a cleanup. IRQs were disabled on the previous line so we don't need to do it again here. In the current code IRQs would get turned on one line earlier than intended. Signed-off-by:
Dan Carpenter <error27@gmail.com> Signed-off-by:
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Dan Carpenter authored
We unlock after we goto out. Signed-off-by:
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Dan Carpenter authored
In the original code if the copy_from_user() fails in rds_rdma_pages() then the error handling fails and we get a stack trace from kmalloc(). Signed-off-by:
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Dan Carpenter authored
The mod->mbhdlr[] array has BFI_MC_MAX elements. Signed-off-by:
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Eric Dumazet authored
Move 'synced' and 'global_use' fields before 'refcount', to shrinks struct netdev_hw_addr by 8 bytes (on 64bit arches). Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
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- 17 Sep, 2010 18 commits
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Eric Dumazet authored
gro can be enabled by default on bonding devices. Actual support depends on the lower devices. One can still use ethtool to switch off GRO if needed. Signed-off-by:
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Ben Hutchings authored
Signed-off-by:
Ben Hutchings <bhutchings@solarflare.com> Signed-off-by:
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Ben Hutchings authored
The ethtool utility does not set masks for flow parameters that are not specified, so if both value and mask are 0 then this must be treated as equivalent to a mask with all bits set. Currently that is done in the only driver that implements RX n-tuple filtering, ixgbe. Move it to the ethtool core. Signed-off-by:
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David Lamparter authored
previously, if a vlan master device was moved from one network namespace to another, all 802.1q and macvlan slaves were deleted. we can use dev->reg_state to figure out whether dev_change_net_namespace is happening, since that won't set dev->reg_state NETREG_UNREGISTERING. so, this changes 8021q and macvlan to ignore NETDEV_UNREGISTER when reg_state is not NETREG_UNREGISTERING. Signed-off-by:
David Lamparter <equinox@diac24.net> Reviewed-by:
"Eric W. Biederman" <ebiederm@xmission.com> Acked-by:
Daniel Lezcano <daniel.lezcano@free.fr> Acked-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Giuseppe CAVALLARO authored
Use one memset() to reset all TDES01 fields instead of one by one to reduce number of instructions. Signed-off-by:
Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by:
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Giuseppe CAVALLARO authored
Add a limit when perform the DMA reset procedure so, in case of problems (i.e. PHY reset failed) the Kernel won't hang on the stmmac DMA initialisation blocking the Kernels execution. Signed-off-by:
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Giuseppe CAVALLARO authored
The first version of the driver had hard-coded the logic for handling the checksum offloading. This was designed according to the chips included in the STM platforms where: o MAC10/100 supports no COE at all. o GMAC fully supports RX/TX COE. This is not good for other chip configurations where, for example, the mac10/100 supports the tx csum in HW or when the GMAC has no IPC. Thanks to Johannes Stezenbach; he provided me a first draft of this patch that only reviewed the IPC for the GMAC devices. This patch also helps on SPEAr platforms where the MAC10/100 can perform the TX csum in HW. Thanks to Deepak SIKRI for his support on this. In the end, GMAC devices for STM platforms have a bugged Jumbo frame support that needs to have the Tx COE disabled for oversized frames (due to limited buffer sizes). This information is also passed through the driver's platform structure. Signed-off-by:
Johannes Stezenbach <js@sig21.net> Signed-off-by:
Deepak SIKRI <deepak.sikri@st.com> Signed-off-by:
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Giuseppe CAVALLARO authored
This patch adds the CSR Clock range selection. Original patch from Johannes Stezenbach fixed the CSR in the stmmac_mdio. We agreed to provide this through the platform instead of. Also thanks to Johannes for having tested it on ARM. Signed-off-by:
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Eric Dumazet authored
To be able to switch on GRO on a device, ethtool_set_gro() checks this device provides a get_rx_csum() method. Some devices dont provide this method, while they do support RX checksumming. This patch allows bonding to support GRO : ethtool -K bond0 gro on Signed-off-by:
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Amit Kumar Salecha authored
Signed-off-by:
Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by:
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Amit Kumar Salecha authored
Don't compare flash and file fw version. Allow to load old fw from file than flashed fw. If file fw is present, don't skip fw re-intialization. Signed-off-by:
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Amit Kumar Salecha authored
LRO + GRO + vlan rx accleration support, performance increases around 20% and cpu utilization reduces around 70% on vlan interface. Signed-off-by:
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Amit Kumar Salecha authored
GRO support + vlan rx accleration, boost around 9% performance and reduces 25% of cpu utilization on vlan interface. Signed-off-by:
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Amit Kumar Salecha authored
Implemented vlan rx accleration in driver. This helps in increasing significant performance and reduces cpu utilization with GRO and LRO. Eric Dumazet: "Its a bit strange you use dev_kfree_skb_any(skb) here." "We run in NAPI mode, so you can use dev_kfree_skb()." Amit: Done. Using dev_kfree_skb(); Signed-off-by:
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Dan Rosenberg authored
This was previously reported as a security issue due to leakage of uninitialized stack memory. Jeff Mahoney pointed out that this is incorrect since the copied data is from a union (rather than a struct). Therefore, this patch is only under consideration for the sake of correctness, and is not security relevant. Signed-off-by:
Dan Rosenberg <dan.j.rosenberg@gmail.com> Acked-by:
Grant Grundler <grundler@parisc-linux.org> Signed-off-by:
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Eric Dumazet authored
commit ab95bfe0 (net: replace hooks in __netif_receive_skb) added rx_handler at wrong place, between two cache line aligned objects, creating a big hole (a full cache line) Move rx_handler and rx_handler_data before rx_queue, filling existing hole. Move master field in the cache line(s) used in receive path. This saves 64 bytes (or L1_CACHE_BYTES), and avoids two possible cache misses in receive path. Signed-off-by:
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Eric Dumazet authored
As RTNL is held while doing tunnels inserts and deletes, we can remove ip6_tnl_lock spinlock. My initial RCU conversion was conservative and converted the rwlock to spinlock, with no RTNL requirement. Use appropriate rcu annotations and modern lockdep checks as well. Signed-off-by:
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Stephen Rothwell authored
rcu_dereference_raw() now needs to know the type of its argument. Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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- 16 Sep, 2010 16 commits
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Brandon Philips authored
Currently vlan devices don't have GRO by default as none of the Ethernet drivers add NETIF_F_GRO to their vlan_features. As GRO is a software feature add GRO to dev->vlan_features in register_netdevice() and let vlan_dev_init() take care that it gets enabled only when dev->features has NETIF_F_GRO too. Signed-off-by:
Brandon Philips <bphilips@suse.de> Acked-by:
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Breno Leitao authored
This patch removes the unconditional return in the end of the function check_sqs() Signed-off-by:
Breno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by:
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stephen hemminger authored
The driver has supported GRO for a while, but it was not enabled by default. Signed-off-by:
Stephen Hemminger <shemminger@vyatta.com> Signed-off-by:
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Eric Dumazet authored
dev->ip_ptr is protected by rtnl and rcu. Yet some places dont use appropriate primitives and/or locking rules. Signed-off-by:
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David S. Miller authored
net/phonet/socket.c: In function ‘pn_res_seq_show’: net/phonet/socket.c:726: warning: format ‘%02X’ expects type ‘unsigned int’, but argument 3 has type ‘long int’ Signed-off-by: -
Rémi Denis-Courmont authored
Signed-off-by:
Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by:
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Rémi Denis-Courmont authored
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Rémi Denis-Courmont authored
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Rémi Denis-Courmont authored
I wish we could use something cleaner, such as bind(). But that would not work since resource subscription is orthogonal/in addition to the normal object ID allocated via bind(). This is similar to multicasting which also uses ioctl()'s. Signed-off-by:
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Rémi Denis-Courmont authored
When both destination device and object are nul, Phonet routes the packet according to the resource field. In fact, this is the most common pattern when sending Phonet "request" packets. In this case, the packet is delivered to whichever endpoint (socket) has registered the resource. This adds a new table so that Linux processes can register their Phonet sockets to Phonet resources, if they have adequate privileges. (Namespace support is not implemented at the moment.) Signed-off-by:
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Rémi Denis-Courmont authored
Closing a pipe endpoint is not normally allowed by the Phonet pipe, other than as a side after-effect of removing the pipe between two endpoints. But there is no way to prevent Linux userspace processes from being killed or suffering from bugs, so this can still happen. We might as well forcefully close Phonet pipe endpoints then. The cellular modem supports only a few existing pipes at a time. So we really should not leak them. This change instructs the modem to destroy the pipe if either of the pipe's endpoint (Linux socket) is closed too early. Signed-off-by:
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Arnd Bergmann authored
The use of the big kernel lock in misdn is completely bogus, so let's just remove it. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: netdev@vger.kernel.org Signed-off-by:
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Arnd Bergmann authored
The isdn4linux driver uses the big kernel lock only to serialize access to a few fields in its own modem_info structure. The easiest replacement is a driver-wide mutex. More fine-grained locking would be more appropriate here, but likely harder to implement. Signed-off-by:
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Arnd Bergmann authored
There may be applications trying to seek on the irnet character device, so we should use noop_llseek to avoid returning an error when the default llseek changes to no_llseek. Signed-off-by:
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Eric Dumazet authored
As RTNL is held while doing tunnels inserts and deletes, we can remove ipip6_lock spinlock. My initial RCU conversion was conservative and converted the rwlock to spinlock, with no RTNL requirement. Use appropriate rcu annotations and modern lockdep checks as well. Signed-off-by:
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