- 25 Jun, 2013 4 commits
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Andy Shevchenko authored
If someone is interested to dump something they may consider to use print_hex_dump() or print_hex_dump_bytes() kernel helpers. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by:
Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Yuval Mintz authored
This patch solves several sparse issues as well as an unneeded semicolon found via coccinelle. Signed-off-by:
Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by:
Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by:
Ariel Elior <ariele@broadcom.com> Signed-off-by:
Eilon Greenstein <eilong@broadcom.com> Signed-off-by:
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Eric Dumazet authored
commit f88c91dd ("ipv6: statically link register_inet6addr_notifier()" added following sparse warnings : net/ipv6/addrconf_core.c:83:5: warning: symbol 'register_inet6addr_notifier' was not declared. Should it be static? net/ipv6/addrconf_core.c:89:5: warning: symbol 'unregister_inet6addr_notifier' was not declared. Should it be static? net/ipv6/addrconf_core.c:95:5: warning: symbol 'inet6addr_notifier_call_chain' was not declared. Should it be static? Signed-off-by:
Eric Dumazet <edumazet@google.com> Cc: Cong Wang <amwang@redhat.com> Signed-off-by:
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Eric Dumazet authored
struct tcp_fastopen_context has a field named tfm, which is a pointer to a crypto_cipher structure. It currently has a __rcu annotation, which is not needed at all. tcp_fastopen_ctx is the pointer fetched by rcu_dereference(), but once we have a pointer to current tcp_fastopen_context, we do not use/need rcu_dereference() to access tfm. This fixes a lot of sparse errors like the following : net/ipv4/tcp_fastopen.c:21:31: warning: incorrect type in argument 1 (different address spaces) net/ipv4/tcp_fastopen.c:21:31: expected struct crypto_cipher *tfm net/ipv4/tcp_fastopen.c:21:31: got struct crypto_cipher [noderef] <asn:4>*tfm Signed-off-by:
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- 24 Jun, 2013 30 commits
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Daniel Borkmann authored
Currently, there is no good possibility to debug netlink traffic that is being exchanged between kernel and user space. Therefore, this patch implements a netlink virtual device, so that netlink messages will be made visible to PF_PACKET sockets. Once there was an approach with a similar idea [1], but it got forgotten somehow. I think it makes most sense to accept the "overhead" of an extra netlink net device over implementing the same functionality from PF_PACKET sockets once again into netlink sockets. We have BPF filters that can already be easily applied which even have netlink extensions, we have RX_RING zero-copy between kernel- and user space that can be reused, and much more features. So instead of re-implementing all of this, we simply pass the skb to a given PF_PACKET socket for further analysis. Another nice benefit that comes from that is that no code needs to be changed in user space packet analyzers (maybe adding a dissector, but not more), thus out of the box, we can already capture pcap files of netlink traffic to debug/troubleshoot netlink problems. Also thanks goes to Thomas Graf, Flavio Leitner, Jesper Dangaard Brouer. [1] http://marc.info/?l=linux-netdev&m=113813401516110Signed-off-by:
Daniel Borkmann <dborkman@redhat.com> Signed-off-by:
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Daniel Borkmann authored
Similarly to the networking receive path with ptype_all taps, we add the possibility to register netdevices that are for ARPHRD_NETLINK to the netlink subsystem, so that those can be used for netlink analyzers resp. debuggers. We do not offer a direct callback function as out-of-tree modules could do crap with it. Instead, a netdevice must be registered properly and only receives a clone, managed by the netlink layer. Symbols are exported as GPL-only. Signed-off-by:
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Daniel Borkmann authored
This small patch adds the definition of ARPHRD_NETLINK which can for example be used by netlink monitoring devices as device type. So that sockaddr_ll can pick it up and based on that choose the correct packet dissector. Signed-off-by:
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David S. Miller authored
This restores commits: c573972c 1a590434 da2e2c21 which initially accidently went into 'net', were reverted there, and then properly placed into 'net-next'. But the next net --> net-next merge accidently wiped them out again. Reported-by:
Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by:
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Yuval Mintz authored
This fixes an issue caused by submit 78c3bcc5 `bnx2x: Improve PF behaviour toward VF', which made the bnx2x driver fail compilation when PCI_IOV is not set. Signed-off-by:
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Wedson Almeida Filho authored
Callers of skb_seq_read() are currently forced to call skb_abort_seq_read() even when consuming all the data because the last call to skb_seq_read (the one that returns 0 to indicate the end) fails to unmap the last fragment page. With this patch callers will be allowed to traverse the SKB data by calling skb_prepare_seq_read() once and repeatedly calling skb_seq_read() as originally intended (and documented in the original commit 677e90ed), that is, only call skb_abort_seq_read() if the sequential read is actually aborted. Signed-off-by:
Wedson Almeida Filho <wedsonaf@gmail.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-nextDavid S. Miller authored
John W. Linville says: ==================== I would guess that this is the last big wireless pull request before the 3.11 merge window... Regarding the mac80211 bits, Johannes says: "I have a number of mesh fixes and improvements from Colleen, Jacob, Ashok and Thomas, powersave fixes in mac80211 from Alex, improved management-TX from Antonio, and a few various things, including locking fixes, from others and myself. Overall though, nothing really stands out." As for the iwlwifi bits, Johannes says: "Emmanuel contributed two AP mode fixes, removed an unused field, fixed a comment and added a warning for something that shouldn't happen in practice, and I removed the declaration of a function that doesn't even exist and cleaned up a small include." "This time I have a number of cleanups, a small fix from Emmanuel and two performance improvements that combined reduce our driver's CPU utilisation as much as 75% in high TX-throughput scenarios." "These two patches fix two issues with using rfkill randomly during traffic, which would then cause our driver to stop working and not be able to recover at all." Regarding the ath6kl bits, Kalle says: "Here are few simple patches for ath6kl. We have a suspend crash fix for USB from Shafi, use of mac_pton(), a compiler warning fix and a fix for module initialisation error path." Kalle also sends the biggest single item of note, the new ath10k driver for Qualcomm Atheros 802.11ac CQA98xx devices. Included is an NFC pull, of which Samuel says: "These are the pending NFC patches for the 3.11 merge window. It contains the pending fixes that were on nfc-fixes (nfc-fixes-3.10-2), along with a few more for the pn544 and pn533 drivers, the LLCP disconnection path and an LLCP memory leak. Highlights for this one are: - An initial secure element API. NFC chipsets can carry an embedded secure element or get access to the SIM one. In both cases they control the secure elements and this API provides a way to discover, enable and disable the available SEs. It also exports that to userspace in order for SE focused middleware to actually do something with them (e.g. payments). - NCI over SPI support. SPI is the most complex NCI specified transport layer and we now have support for it in the kernel. The next step will be to implement drivers for NCI chipsets using this transport like e.g. bcm2079x. - NFC p2p hardware simulation driver. We now have an nfcsim driver that is mostly a loopback device between 2 NFC interfaces. It also implements the rest of the NFC core API like polling and target detection. This driver, with neard running on top of it, allows us to completely test the LLCP, SNEP and Handover implementation without physical hardware. - A Firmware update netlink API. Most (All ?) HCI chipsets have a special firmware update mode where applications can push a new firmware that will be flashed. We now have a netlink API for providing that mode to e.g. nfctool." On top of all that, there are a variety of updates to brcmfmac, iwlegacy, rtlwifi, wil6210, and the TI wl12xx drivers. As usual, the bcma and ssb busses get a little love as well, as do a handful of others here and there. ==================== Signed-off-by: -
Dan Carpenter authored
There is a typo here, "i" vs "j", so we would crash on module_exit(). Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Jesse Gross authored
Tunnel constants can be used in generic code but in these cases the inline functions in ip_tunnels.h cause compilation problems if CONFIG_INET is not set. CC: Pravin Shelar <pshelar@nicira.com> Reported-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
Jesse Gross <jesse@nicira.com> Acked-by:
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Pravin B Shelar authored
This bug was introduced by commit aa310701 (openvswitch: Add gre tunnel support.) Signed-off-by:
Pravin B Shelar <pshelar@nicira.com> Signed-off-by:
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Cong Wang authored
Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by:
Cong Wang <amwang@redhat.com> Signed-off-by:
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Eric Dumazet authored
netif_alloc_netdev_queues() uses kcalloc() to allocate memory for the "struct netdev_queue *_tx" array. For large number of tx queues, kcalloc() might fail, so this patch does a fallback to vzalloc(). As vmalloc() adds overhead on a critical network path, add __GFP_REPEAT to kzalloc() flags to do this fallback only when really needed. Signed-off-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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David S. Miller authored
Yuval Mintz says: ==================== This patch series mostly revolves around improving SR-IOV implementation (Better PF-VF relation, sanity checks and timings), as well as including a patch correcting the (outward) advertisement of 20G capabilities. ==================== Signed-off-by: -
Yaniv Rosner authored
Don't claim 20G is supported if the speed is unsupported by the phys (reflected by various ethtools and ndos). Signed-off-by:
Yaniv Rosner <yanivr@broadcom.com> Signed-off-by:
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Ariel Elior authored
Wait 100ms for FLR to complete in parallel over all VFs instead of serializing the waits (which can amount to several seconds with 64 VFs). Signed-off-by:
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Ariel Elior authored
If iproute2 VF callbacks are invoked before PF is loaded, abort gracefully. Signed-off-by:
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Ariel Elior authored
If PF is unloaded with loaded VFs, signal towards VFs so they can detect this gracefully. Signed-off-by:
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Asias He authored
If we mod with VSOCK_HASH_SIZE -1, we get 0, 1, .... 249. Actually, we have vsock_bind_table[0 ... 250] and vsock_connected_table[0 .. 250]. In this case the last entry will never be used. We should mod with VSOCK_HASH_SIZE instead. Signed-off-by:
Asias He <asias@redhat.com> Acked-by:
Andy King <acking@vmware.com> Signed-off-by:
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Asias He authored
Signed-off-by:
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Asias He authored
vmci_transport_recv_dgram_cb always return VMCI_SUCESS even if we fail to allocate skb, return VMCI_ERROR_NO_MEM instead. Signed-off-by:
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Asias He authored
This peace of code is called three times, let's have a helper for it. Signed-off-by:
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Cong Wang authored
This is debug info, should at least be pr_debug(), but given that this code is in upstream for two years, there is no need to keep this debugging printk any more, so just remove it. Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by:
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Jitendra Kalsaria authored
Signed-off-by:
Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by:
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Rajesh Borundia authored
o Implement shutdown and resume handlers for 83xx. o Refactor 82xx shutdown and resume handlers. Signed-off-by:
Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by:
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Pratik Pujar authored
Issue 'set driver version' during driver load and after reset recovery to notify the driver version to the firmware. Signed-off-by:
Pratik Pujar <pratik.pujar@qlogic.com> Signed-off-by:
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Pratik Pujar authored
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Shahed Shaikh authored
This patch adds support to read memory section of adapter dump using PEX DMA method. This method significantly improves total adapter dump collection time. Signed-off-by:
Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by:
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Jitendra Kalsaria authored
o Minimize sleep duration and check for adapter status. o Exit from loopback test if adapter reset is detected. Signed-off-by:
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Jitendra Kalsaria authored
Add support for configuring secondary unicast address which will use existing HW filters to store all the unicast MAC addresses and prevent device going into promiscuous mode. Signed-off-by:
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Shahed Shaikh authored
qlcnic_alloc_mbx_args() may fail due to failure in memory allocation. This patch checks for failure of qlcnic_alloc_mbx_args() to avoid potential invalid memory access. Signed-off-by:
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- 21 Jun, 2013 1 commit
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John W. Linville authored
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: net/wireless/nl80211.c
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- 20 Jun, 2013 5 commits
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Joe Perches authored
This typedef is unnecessary and should just be removed. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Joe Perches authored
This typedef is unnecessary and should just be removed. Signed-off-by:
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Rami Rosen authored
This patch removes an empty ifdef from inet_frag_intern() in net/ipv4/inet_fragment.c. commit b67bfe0d (hlist: drop the node parameter from iterators) removed hlist from net/ipv4/inet_fragment.c, but did not remove the enclosing ifdef command, which is now empty. Signed-off-by:
Rami Rosen <ramirose@gmail.com> Signed-off-by:
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Eric Dumazet authored
htb_sched structures are big, and source of false sharing on SMP. Every time a packet is queued or dequeue, many cache lines must be touched because structures are not lay out properly. By carefully splitting htb_sched in two parts, and define sub structures to increase data locality, we can improve performance dramatically on SMP. New htb_prio structure can also be used in htb_class to increase data locality. I got 26 % performance increase on a 24 threads machine, with 200 concurrent netperf in TCP_RR mode, using a HTB hierarchy of 4 classes. Signed-off-by:
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Cong Wang authored
In previous discussions, I tried to find some reasonable heuristics for delayed ACK, however this seems not possible, according to Eric: "ACKS might also be delayed because of bidirectional traffic, and is more controlled by the application response time. TCP stack can not easily estimate it." "ACK can be incredibly useful to recover from losses in a short time. The vast majority of TCP sessions are small lived, and we send one ACK per received segment anyway at beginning or retransmits to let the sender smoothly increase its cwnd, so an auto-tuning facility wont help them that much." and according to David: "ACKs are the only information we have to detect loss. And, for the same reasons that TCP VEGAS is fundamentally broken, we cannot measure the pipe or some other receiver-side-visible piece of information to determine when it's "safe" to stretch ACK. And even if it's "safe", we should not do it so that losses are accurately detected and we don't spuriously retransmit. The only way to know when the bandwidth increases is to "test" it, by sending more and more packets until drops happen. That's why all successful congestion control algorithms must operate on explicited tested pieces of information. Similarly, it's not really possible to universally know if it's safe to stretch ACK or not." It still makes sense to enable or disable quick ack mode like what TCP_QUICK_ACK does. Similar to TCP_QUICK_ACK option, but for people who can't modify the source code and still wants to control TCP delayed ACK behavior. As David suggested, this should belong to per-path scope, since different pathes may want different behaviors. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Rick Jones <rick.jones2@hp.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Graf <tgraf@suug.ch> CC: David Laight <David.Laight@ACULAB.COM> Signed-off-by:
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