- 21 Sep, 2010 14 commits
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David S. Miller authored
drivers/net/sfc/filter.c: In function ‘efx_probe_filters’: drivers/net/sfc/filter.c:422: error: implicit declaration of function ‘vmalloc’ drivers/net/sfc/filter.c:422: warning: assignment makes pointer from integer without a cast drivers/net/sfc/filter.c: In function ‘efx_remove_filters’: drivers/net/sfc/filter.c:442: error: implicit declaration of function ‘vfree’ Signed-off-by: David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
For backward compatibility, add it at the end. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
Some NICs have huge register files which exceed the maximum heap allocation size. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Gerrit Renker authored
The `options_received' struct is redundant, since it re-duplicates the existing `p' and `x_recv' fields. This patch removes the sub-struct and migrates the format conversion operations to ccid3_hc_tx_parse_options(). Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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Gerrit Renker authored
This adds a function to take care of the following, separate cases occurring in the computation of the Loss Rate p: * 1/(2^32-1) is mapped into 0% as per RFC 4342, 8.5; * 1/0 is mapped into 100%, the maximum; * to avoid that p = 1/x is rounded down to 0 when x is very large, since this means accidentally re-entering slow-start indicated by p == 0, the minimum resolution value of p is now returned instead; * a bug in ccid3_hc_rx_getsockopt is fixed: 1/0 was mapped into ~0U. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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Gerrit Renker authored
This patch is thanks to an investigation by Leandro Sales de Melo and his colleagues. They worked out two state diagrams which highlight the fact that the xxx_TERM states in CCID-3/4 are in fact not necessary. And this can be confirmed by in turn looking at the code: the xxx_TERM states are only ever set in ccid3_hc_{rx,tx}_exit(): when CCID-3 sets the state to xxx_TERM, it is at a time where no more processing should be going on, hence it is not necessary to introduce a dedicated exit state - this is already implied by unloading the CCID. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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Gerrit Renker authored
The constants DCCPO_{MIN,MAX}_CCID_SPECIFIC are nowhere used in the code, but instead for the CCID-specific options numbers are used. This patch unifies the use of CCID-specific option numbers, by adding symbolic names reflecting the definitions in RFC 4340, 10.3. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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Gerrit Renker authored
This 1. adds packet type information to ccid_hc_{rx,tx}_parse_options(). This is necessary, since table 3 in RFC 4340, 5.8 leaves it to the CCIDs to state which options may (not) appear on what packet type. 2. adds such a check for CCID-3's {Loss Event, Receive} Rate as specified in RFC 4340 8.3 ("Receive Rate options MUST NOT be sent on DCCP-Data packets") and 8.5 ("Loss Event Rate options MUST NOT be sent on DCCP-Data packets"). 3. removes an unused argument `idx' from ccid_hc_{rx,tx}_parse_options(). This is also no longer necessary, since the CCID-specific option-parsing routines are passed every single parameter of the type-length-value option encoding. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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- 20 Sep, 2010 2 commits
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Eric Dumazet authored
skb->truesize is set in core network. Dont change it unless dealing with fragments. 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
Under load, netif_rx() can drop incoming packets but administrators dont have a chance to spot which device needs some tuning (RPS activation for example) This patch adds rx_dropped accounting in vlans and tunnels. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 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: David S. Miller <davem@davemloft.net>
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Dan Carpenter authored
We unlock after we goto out. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Dan Carpenter authored
The mod->mbhdlr[] array has BFI_MC_MAX elements. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: David S. Miller <davem@davemloft.net>
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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: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: David S. Miller <davem@davemloft.net>
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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: David S. Miller <davem@davemloft.net>
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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: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Deepak SIKRI <deepak.sikri@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Amit Kumar Salecha authored
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Amit Kumar Salecha <amit.salecha@qlogic.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: David S. Miller <davem@davemloft.net>
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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: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: David S. Miller <davem@davemloft.net>
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