- 17 Dec, 2013 40 commits
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Ursula Braun authored
state checking in conn_action_txdone() is inconsistent. This patch makes it consistent and issues a trace message if an unexpected state is detected for the netiucv device. Signed-off-by:
Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by:
Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Daniel Borkmann authored
Valgrind found that extracted labels that are passed from the lexer weren't freed upon exit. Therefore, add a small helper function that walks label tables and frees them. Since also NULL can be passed to free(3), we do not need to take care of that here. While at it, fix up a spacing error in bpf_set_curr_label(). Signed-off-by:
Daniel Borkmann <dborkman@redhat.com> Signed-off-by:
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Daniel Borkmann authored
We must not leave the socket intact in bpf_runnable(). The socket is used to test if the filter code is being accepted by the kernel or not. So right after we do the setsockopt(2), we need to close it again. Signed-off-by:
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David S. Miller authored
Manish Chopra says: ==================== qlcnic: Refactoring and enhancements This patch series includes follwing changes * Refactor DCBX code. Do not allow DCBX operations for VFs * Issue INIT_NIC mailbox command only once * Refactor initialize nic code path * Allow configuration for single TX/RX queue * VLAN enhancement for 84xx adapters * Support for 16 virtual NIC functions for 84XX series adapters Please apply to net-next ==================== Signed-off-by: -
Manish Chopra authored
Signed-off-by:
Manish Chopra <manish.chopra@qlogic.com> Signed-off-by:
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Jitendra Kalsaria authored
Extend virtual NIC functions from 8 to 16 for 84xx adapter. Signed-off-by:
Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by:
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Manish Chopra authored
o Support multiple VLANs on 84xx VF devices Signed-off-by:
Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by:
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Himanshu Madhani authored
o Allow user to set sigle Tx/Rx queue in MSI-x mode, for ALL supported adapters. Signed-off-by:
Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by:
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Sucheta Chakraborty authored
o Change function name from qlcnic_83xx_register_nic_idc_func to qlcnic_83xx_initialize_nic Signed-off-by:
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Sucheta Chakraborty authored
o DCB AEN registration was reissuing INIT_NIC command. Instead, club all options of INIT NIC command and issue this command only once. Signed-off-by:
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Sucheta Chakraborty authored
o These operations will be supported only through PFs (SR-IOV and non-SR-IOV). Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-nextDavid S. Miller authored
Ben Hutchings says: ==================== Miscellaneous changes for 3.14: 1. Add more information to some WARN messages. 2. Refactor pushing of RSS configuration, from Andrew Rybchenko. 3. Refactor handling of automatic (device address list) vs manual (RX NFC) MAC filters. 4. Implement clearing of manual RX filters on EF10 when ntuple offload is disabled. 5. Remove definitions that are unused since the RX buffer allocation changes, from Andrew Rybchenko. 6. Improve naming of some statistics, from Shradha Shah. 7. Add statistics for PTP support code. 8. Fix insertion of RX drop filters on EF10. ==================== Signed-off-by: -
David S. Miller authored
Tom Herbert says: ==================== net: Add rxhash utility hash functions v3: There's really nothing specific about rxhash that constrains it to be a value just for these receive path. Drop the 'rx' part in utility functions, including skb_get_rxhash. In subsequent patches, we can change the rxhash and l4_rxhash names also, as well as abstracting out the interface to the hash. Added comments about hash types per feedback. In this version I'm omitting the changes to drivers to make the patch set manageable. Will add those changes in followup pathes. ----- This patch series introduce skb_set_rxhash and skb_clear_rxhash which are called to set the rxhash (from network drivers) and to clear the rxhash. This API should be used instead of updating fields in the skbuff directly. ==================== Signed-off-by: -
Tom Herbert authored
Adds skb_copy_hash to copy rxhash and l4_rxhash from one skb to another. Signed-off-by:
Tom Herbert <therbert@google.com> Signed-off-by:
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Tom Herbert authored
The function skb_set_rxash was added for drivers to call to set the rxhash in an skb. The type of hash is also specified as a parameter (L2, L3, L4, or unknown type). Signed-off-by:
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Tom Herbert authored
In several places 'skb->rxhash = 0' is being done to clear the rxhash value in an skb. This does not clear l4_rxhash which could still be set so that the rxhash wouldn't be recalculated on subsequent call to skb_get_rxhash. This patch adds an explict function to clear all the rxhash related information in the skb properly. skb_clear_hash_if_not_l4 clears the rxhash only if it is not marked as l4_rxhash. Fixed up places where 'skb->rxhash = 0' was being called. Signed-off-by:
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Tom Herbert authored
Changing name of function as part of making the hash in skbuff to be generic property, not just for receive path. Signed-off-by:
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Wei Yongjun authored
The callback function of call_rcu() just calls a kfree(), so we can use kfree_rcu() instead of call_rcu() + callback function. Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by:
Arvid Brodin <arvid.brodin@alten.se> Signed-off-by:
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David S. Miller authored
Scott Feldman says: ==================== bonding: add some more netlink attributes The following series implements five more bonding netlink attributes: primary primary_reselect fail_over_mac xmit_hash_policy resend_igmp Tested with modified iproute2 to verify attributes can be set at bond creation time or set later. Verified sysfs interface to attributes continues to work. ==================== Signed-off-by: -
sfeldma@cumulusnetworks.com authored
Add IFLA_BOND_RESEND_IGMP to allow get/set of bonding parameter resend_igmp via netlink. Signed-off-by:
Scott Feldman <sfeldma@cumulusnetworks.com> Signed-off-by:
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sfeldma@cumulusnetworks.com authored
Add IFLA_BOND_XMIT_HASH_POLICY to allow get/set of bonding parameter xmit_hash_policy via netlink. Signed-off-by:
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sfeldma@cumulusnetworks.com authored
Add IFLA_BOND_FAIL_OVER_MAC to allow get/set of bonding parameter fail_over_mac via netlink. Signed-off-by:
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sfeldma@cumulusnetworks.com authored
Add IFLA_BOND_PRIMARY_SELECT to allow get/set of bonding parameter primary_select via netlink. Signed-off-by:
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sfeldma@cumulusnetworks.com authored
Add IFLA_BOND_PRIMARY to allow get/set of bonding parameter primary via netlink. Signed-off-by:
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Eric Dumazet authored
This patch brings NUMA support and automatic fallback to vmalloc() in case kmalloc() failed to allocate FQ hash table. NUMA support depends on XPS being setup for the device before qdisc allocation. After a XPS change, it might be worth creating qdisc hierarchy again. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Jiri Pirko authored
Signed-off-by:
Jiri Pirko <jiri@resnulli.us> Signed-off-by:
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stephen hemminger authored
Compile tested only. Signed-off-by:
Stephen Hemminger <stephen@networkplumber.org> Acked-by:
Rasesh Mody <rmody@brocade.com> Signed-off-by:
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Eric Dumazet authored
While investigating performance problems on small RPC workloads, I noticed linux TCP stack was always splitting the last TSO skb into two parts (skbs). One being a multiple of MSS, and a small one with the Push flag. This split is done even if TCP_NODELAY is set, or if no small packet is in flight. Example with request/response of 4K/4K IP A > B: . ack 68432 win 2783 <nop,nop,timestamp 6524593 6525001> IP A > B: . 65537:68433(2896) ack 69632 win 2783 <nop,nop,timestamp 6524593 6525001> IP A > B: P 68433:69633(1200) ack 69632 win 2783 <nop,nop,timestamp 6524593 6525001> IP B > A: . ack 68433 win 2768 <nop,nop,timestamp 6525001 6524593> IP B > A: . 69632:72528(2896) ack 69633 win 2768 <nop,nop,timestamp 6525001 6524593> IP B > A: P 72528:73728(1200) ack 69633 win 2768 <nop,nop,timestamp 6525001 6524593> IP A > B: . ack 72528 win 2783 <nop,nop,timestamp 6524593 6525001> IP A > B: . 69633:72529(2896) ack 73728 win 2783 <nop,nop,timestamp 6524593 6525001> IP A > B: P 72529:73729(1200) ack 73728 win 2783 <nop,nop,timestamp 6524593 6525001> We can avoid this split by including the Nagle tests at the right place. Note : If some NIC had trouble sending TSO packets with a partial last segment, we would have hit the problem in GRO/forwarding workload already. tcp_minshall_update() is moved to tcp_output.c and is updated as we might feed a TSO packet with a partial last segment. This patch tremendously improves performance, as the traffic now looks like : IP A > B: . ack 98304 win 2783 <nop,nop,timestamp 6834277 6834685> IP A > B: P 94209:98305(4096) ack 98304 win 2783 <nop,nop,timestamp 6834277 6834685> IP B > A: . ack 98305 win 2768 <nop,nop,timestamp 6834686 6834277> IP B > A: P 98304:102400(4096) ack 98305 win 2768 <nop,nop,timestamp 6834686 6834277> IP A > B: . ack 102400 win 2783 <nop,nop,timestamp 6834279 6834686> IP A > B: P 98305:102401(4096) ack 102400 win 2783 <nop,nop,timestamp 6834279 6834686> IP B > A: . ack 102401 win 2768 <nop,nop,timestamp 6834687 6834279> IP B > A: P 102400:106496(4096) ack 102401 win 2768 <nop,nop,timestamp 6834687 6834279> IP A > B: . ack 106496 win 2783 <nop,nop,timestamp 6834280 6834687> IP A > B: P 102401:106497(4096) ack 106496 win 2783 <nop,nop,timestamp 6834280 6834687> IP B > A: . ack 106497 win 2768 <nop,nop,timestamp 6834688 6834280> IP B > A: P 106496:110592(4096) ack 106497 win 2768 <nop,nop,timestamp 6834688 6834280> Before : lpq83:~# nstat >/dev/null;perf stat ./super_netperf 200 -t TCP_RR -H lpq84 -l 20 -- -r 4K,4K 280774 Performance counter stats for './super_netperf 200 -t TCP_RR -H lpq84 -l 20 -- -r 4K,4K': 205719.049006 task-clock # 9.278 CPUs utilized 8,449,968 context-switches # 0.041 M/sec 1,935,997 CPU-migrations # 0.009 M/sec 160,541 page-faults # 0.780 K/sec 548,478,722,290 cycles # 2.666 GHz [83.20%] 455,240,670,857 stalled-cycles-frontend # 83.00% frontend cycles idle [83.48%] 272,881,454,275 stalled-cycles-backend # 49.75% backend cycles idle [66.73%] 166,091,460,030 instructions # 0.30 insns per cycle # 2.74 stalled cycles per insn [83.39%] 29,150,229,399 branches # 141.699 M/sec [83.30%] 1,943,814,026 branch-misses # 6.67% of all branches [83.32%] 22.173517844 seconds time elapsed lpq83:~# nstat | egrep "IpOutRequests|IpExtOutOctets" IpOutRequests 16851063 0.0 IpExtOutOctets 23878580777 0.0 After patch : lpq83:~# nstat >/dev/null;perf stat ./super_netperf 200 -t TCP_RR -H lpq84 -l 20 -- -r 4K,4K 280877 Performance counter stats for './super_netperf 200 -t TCP_RR -H lpq84 -l 20 -- -r 4K,4K': 107496.071918 task-clock # 4.847 CPUs utilized 5,635,458 context-switches # 0.052 M/sec 1,374,707 CPU-migrations # 0.013 M/sec 160,920 page-faults # 0.001 M/sec 281,500,010,924 cycles # 2.619 GHz [83.28%] 228,865,069,307 stalled-cycles-frontend # 81.30% frontend cycles idle [83.38%] 142,462,742,658 stalled-cycles-backend # 50.61% backend cycles idle [66.81%] 95,227,712,566 instructions # 0.34 insns per cycle # 2.40 stalled cycles per insn [83.43%] 16,209,868,171 branches # 150.795 M/sec [83.20%] 874,252,952 branch-misses # 5.39% of all branches [83.37%] 22.175821286 seconds time elapsed lpq83:~# nstat | egrep "IpOutRequests|IpExtOutOctets" IpOutRequests 11239428 0.0 IpExtOutOctets 23595191035 0.0 Indeed, the occupancy of tx skbs (IpExtOutOctets/IpOutRequests) is higher : 2099 instead of 1417, thus helping GRO to be more efficient when using FQ packet scheduler. Many thanks to Neal for review and ideas. Signed-off-by:Neal Cardwell <ncardwell@google.com> Tested-by:
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stephen hemminger authored
These function to manipulate multiple addresses are not used anywhere in current net-next tree. Some out of tree code maybe using these but too bad; they should submit their code upstream.. Also, make __hw_addr_flush local since only used by dev_addr_lists.c 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: ==================== Please pull this batch of updates for the 3.14 stream... For the Bluetooth bits, Gustavo says: "This is the first batch of patches intended for 3.14. There is nothing big here. Most of the code are refactors, clean up, small fixes, plus some new device id support." And... "More patches to 3.14. Here we have the support for Low Energy Connection Oriented Channels (LE CoC). Basically, as the name says, this adds supports for connection oriented channels in the same way we already have them for BR/EDR connections so profiles/protocols that work on top of BR/EDR can now work on LE plus a plenty of new possibilities for LE." For the ath10k bits, Kalle says: "Janusz and Marek implemented DFS support to ath10k, but the code is not enabled yet due to missing cfg80211/mac80211 patches (it will be enabled in the next pull request). Michal did some device reset fixes and made it possible for ath10k to share an interrupt with another device. And lots of smaller fixes from different people." For the iwlwifi bits, Emmanuel says: "I have here a big rework of the rate control by Eyal. This is obviously the biggest part of this batch. I also have enhancement of protection flags by Avri and a few bits for WoWLAN by Eliad and Luca. Johannes cleans up the debugfs plus a few fixes. I provided a few things for Bluetooth coexistence. Besides this we have an implementation for low priority scan." Along with all that, there are big batches of updates to mwifiex and ath9k, Jeff Kirsher's FSF address fix patches, and a handful of other bits here and there. Please let me know if there are problems! ==================== Signed-off-by: -
David S. Miller authored
Sebastian Hesselbarth says: ==================== net: phy: Ethernet PHY powerdown optimization This is v2 of the ethernet PHY power optimization patches to reduce power consumption of network PHYs with link that are either unused or the corresponding netdev is down. Compared to the last version, this patch set drops a patch to disable unused PHYs after late initcall, as it is not compatible with a modular mdio bus [1]. I'll investigate different ways to have a modular mdio bus driver get notified when driver loading is done. Again, a branch with v2 applied to v3.13-rc2 can also be found at https://github.com/shesselba/linux-dove.git topic/ethphy-power-v2 [1] http://www.spinics.net/lists/arm-kernel/msg293028.html ==================== Signed-off-by:
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Sebastian Hesselbarth authored
When phydev is going to HALTED state, we can try to suspend it to safe more power. phy_suspend helper will check if PHY can be suspended, so just call it when entering HALTED state. Signed-off-by:
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by:
Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Sebastian Hesselbarth authored
This ensures PHYs are resumed on attach and suspended on detach. Signed-off-by:
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Sebastian Hesselbarth authored
This adds helper functions to resume and suspend a given phy_device by calling the corresponding driver callbacks if available. Signed-off-by:
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Sebastian Hesselbarth authored
Marvell PHYs support generic PHY suspend/resume, so provide those callbacks to all marvell specific drivers. Signed-off-by:
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Sebastian Hesselbarth authored
When using phydev, it should be phy_start/phy_stop'ed properly. This driver doesn't do that, so add the corresponding calls to port_start/ stop respectively. Signed-off-by:
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wangweidong authored
Members of 'struct association' are not in appropriate order to reuse compiler added padding on 64bit architectures. In this patch we reorder those struct members and help reduce the size of the structure from 2776 bytes to 2720 bytes on 64 bit architectures. Signed-off-by:
Wang Weidong <wangweidong1@huawei.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-nextDavid S. Miller authored
Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates This series contains updates to i40e only (again). Jesse provides a fix for when tx_rings structure is NULL and we do not want to panic. Then refactors the flow control set up and disables L2 flow control by default. Provides some trivial fixes as well as prevent compiler warnings. Then to align to similar behaviour in ixgbe, use the total number of CPUs in the system to suggest the number of transmit and receive queue pairs. Shannon provides a i40e ethtool fix to get some more reasonable information reports back out to the ethtool. In addition, fixes PF reset after offline test, where it reorders the test to put the register test last as it is the only one that needs a reset, and we wait to trigger the reset until after we clear the testing bit. Lastly provides basic support for handling suspend and resume for now, later on Wake-On-LAN support will be added. Anjali provides changes to tell the stack about our actual number of queues in order for RFS/RPS/XFS to work correctly. Then provides several patches to implement dynamically changing the queue count for the main VSI. Adds basic support for get/set channels for RSS so that the number of receive and transmit queue pair can be changed via ethtool. Cleans up the use of rtnl_lock in the reset patch since it runs from a work time. Neerav Parikh cleans up the VF interface to remove FCoE code as this feature will not be supported on VF interfaces. v2: - submitted patch 1 to net (since it was a fix needed for net), so dropped from this series (this patch will get added to net-next when Dave syncs his trees) - Dropped patches 4 & 11 from previous submission because of feedback received from Ben Hutchings and Sergei Shtylyov. ==================== Signed-off-by: -
David S. Miller authored
Francesco Fusco says: ==================== ovs: introduce arch-specific fast hashing improvements From: Daniel Borkmann <dborkman@redhat.com> We are introducing a fast hash function (see patch1) that can be used in the context of OpenVSwitch to reduce the hashing footprint (patch2). For details, please see individual patches! v1->v2: - Make hash generic and place it under lib ==================== Signed-off-by: -
Francesco Fusco authored
Currently OVS uses jhash2() for calculating flow hashes in its internal flow_hash() function. The performance of the flow_hash() function is critical, as the input data can be hundreds of bytes long. OVS is largely deployed in x86_64 based datacenters. Therefore, we argue that the performance critical fast path of OVS should exploit underlying CPU features in order to reduce the per packet processing costs. We replace jhash2 with the hash implementation provided by the kernel hash lib, which exploits the crc32l instruction to achieve high performance Our patch greatly reduces the hash footprint from ~200 cycles of jhash2() to around ~90 cycles in case of ovs_flow_hash_crc() (measured with rdtsc over maximum length flow keys on an i7 Intel CPU). Additionally, we wrote a microbenchmark to stress the flow table performance. The benchmark inserts random flows into the flow hash and then performs lookups. Our hash deployed on a CRC32 capable CPU reduces the lookup for 1000 flows, 100 masks from ~10,100us to ~6,700us, for example. Thus, simply use the newly introduced arch_fast_hash2() as a drop-in replacement. Signed-off-by:
Francesco Fusco <ffusco@redhat.com> Signed-off-by:
Thomas Graf <tgraf@redhat.com> Acked-by:
Jesse Gross <jesse@nicira.com> Signed-off-by:
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