- 29 Nov, 2016 2 commits
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Andreas Färber authored
Also include the netdev list for convenience, as done elsewhere. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by:
Andreas Färber <afaerber@suse.de> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
mlx4 stats are chaotic because a deferred work queue is responsible to update them every 250 ms. Even sampling stats every one second with "sar -n DEV 1" gives variations like the following : lpaa23:~# sar -n DEV 1 10 | grep eth0 | cut -c1-65 07:39:22 eth0 146877.00 3265554.00 9467.15 4828168.50 07:39:23 eth0 146587.00 3260329.00 9448.15 4820445.98 07:39:24 eth0 146894.00 3259989.00 9468.55 4819943.26 07:39:25 eth0 110368.00 2454497.00 7113.95 3629012.17 <<>> 07:39:26 eth0 146563.00 3257502.00 9447.25 4816266.23 07:39:27 eth0 145678.00 3258292.00 9389.79 4817414.39 07:39:28 eth0 145268.00 3253171.00 9363.85 4809852.46 07:39:29 eth0 146439.00 3262185.00 9438.97 4823172.48 07:39:30 eth0 146758.00 3264175.00 9459.94 4826124.13 07:39:31 eth0 146843.00 3256903.00 9465.44 4815381.97 Average: eth0 142827.50 3179259.70 9206.30 4700578.16 This patch allows rx/tx bytes/packets counters being folded at the time we need stats. We now can fetch stats every 1 ms if we want to check NIC behavior on a small time window. It is also easier to detect anomalies. lpaa23:~# sar -n DEV 1 10 | grep eth0 | cut -c1-65 07:42:50 eth0 142915.00 3177696.00 9212.06 4698270.42 07:42:51 eth0 143741.00 3200232.00 9265.15 4731593.02 07:42:52 eth0 142781.00 3171600.00 9202.92 4689260.16 07:42:53 eth0 143835.00 3192932.00 9271.80 4720761.39 07:42:54 eth0 141922.00 3165174.00 9147.64 4679759.21 07:42:55 eth0 142993.00 3207038.00 9216.78 4741653.05 07:42:56 eth0 141394.06 3154335.64 9113.85 4663731.73 07:42:57 eth0 141850.00 3161202.00 9144.48 4673866.07 07:42:58 eth0 143439.00 3180736.00 9246.05 4702755.35 07:42:59 eth0 143501.00 3210992.00 9249.99 4747501.84 Average: eth0 142835.66 3182165.93 9206.98 4704874.08 Signed-off-by:
Eric Dumazet <edumazet@google.com> Cc: Tariq Toukan <tariqt@mellanox.com> Signed-off-by:
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- 28 Nov, 2016 31 commits
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Haishuang Yan authored
It shold reserved sizeof(ipv6hdr) for geneve in ipv6 tunnel. Fixes: c3ef5aa5 ('geneve: Merge ipv4 and ipv6 geneve_build_skb()') Signed-off-by:
Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Acked-by:
Pravin B Shelar <pshelar@ovn.org> Signed-off-by:
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David S. Miller authored
Florian Fainelli says: ==================== Documentation: net: phy: Improve documentation This patch series addresses discussions and feedback that was recently received on the mailing-list in the area of: flow control/pause frames, interpretation of phy_interface_t and finally add some links to useful standards documents. Changes in v3: - add Timur's feedback into patch 3 Changes in v2: - clarify a few things in the RGMII section, add a paragraph about common issues with RGMII delay mismatches ==================== Signed-off-by: -
Florian Fainelli authored
Add links to the IEEE 802.3-2008 document, and the RGMII v1.3 and v2.0 revisions of the standard. Reviewed-by:
Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Florian Fainelli authored
RGMII is a recurring source of pain for people with Gigabit Ethernet hardware since it may require PHY driver and MAC driver level configuration hints. Document what are the expectations from PHYLIB and what options exist. Reviewed-by:
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Florian Fainelli authored
Describe that the Ethernet MAC controller is ultimately responsible for dealing with proper pause frames/flow control advertisement and enabling, and that it is therefore allowed to have it change phydev->supported/advertising with SUPPORTED_Pause and SUPPORTED_AsymPause. Reviewed-by:
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Florian Fainelli authored
Remove the function pointers documentation which duplicates information found in include/linux/phy.h. Maintaining documentation about two different locations just does not work, but the code is less likely to be outdated. Reviewed-by:
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Andreas Färber authored
mv88e6xxx_g1_irq_setup() sets up chip->g1_irq.nirqs interrupt mappings, so free the same amount. This will be 8 or 9 in practice, less than 16. Fixes: dc30c35b ("net: dsa: mv88e6xxx: Implement interrupt support.") Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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David S. Miller authored
Saeed Mahameed says: ==================== Mellanox 100G mlx5 DCBX and ethtool updates This series provides the following mlx5 updates: From Huy: DCBX CEE API and DCBX firmware/host modes support. - 1st patch ensures the dcbnl_rtnl_ops is published only when the qos capability bits is on. - 2nd patch adds the support for CEE interfaces into mlx5 dcbnl_rtnl_ops - 3rd patch refactors ETS query to read ETS configuration directly from firmware rather than having a software shadow to it. The existing IEEE interfaces stays the same. - 4th patch adds the support for MLX5_REG_DCBX_PARAM and MLX5_REG_DCBX_APP firmware commands to manipulate mlx5 DCBX mode. - 5th patch adds the driver support for the new DCBX firmware. This ensures the backward compatibility versus the old and new firmware. With the new DCBX firmware, qos settings can be controlled by either firmware or software depending on the DCBX mode. From Kamal and Saeed: - mlx5 self-test support. From Shaker: - Private flag to give the user the ability to enable/disable mlx5 CQE compression. V1->V2: - Check ETS capability where needed in: ("net/mlx5e: Read ETS settings directly from firmware") - Fix return value of mlx5e_dcbnl_switch_to_host_mode in: ("net/mlx5e: ConnectX-4 firmware support for DCBX") - Update commit message of: ("net/mlx5e: ConnectX-4 firmware support for DCBX") - Fix two sparse static check warnings in en_selftest.c This series was generated against commit: e5f12b3f ("Merge branch 'mlxsw-trap-groups-and-policers'") ==================== Signed-off-by: -
Shaker Daibes authored
The user can now override the automatic driver decision using the rx_cqe_compress flag, which is the preference for CQE compression. The flag is initialized with the automatic driver decision. Signed-off-by:
Shaker Daibes <shakerd@mellanox.com> Signed-off-by:
Saeed Mahameed <saeedm@mellanox.com> Signed-off-by:
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Shaker Daibes authored
pflags is a configuration parameter for the netdev, naturally it belongs to priv->params. Also introduce MLX5E_GET_PFLAG Signed-off-by:
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Saeed Mahameed authored
Extend the self diagnostic tests to support loopback test. The loopback test doesn't require the offline flag, it will use the generic dev_queue_xmit and a dedicated packet_type to capture and verify mlx5e selftest loopback packets. Signed-off-by:
Kamal Heib <kamalh@mellanox.com> Signed-off-by:
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Kamal Heib authored
The self diagnostics test implementaion include the following features: 1. Link Test: Check that link is in up state. 2. Speed Test: Check that link was negotiated correctly. 3. Health Test: Check the device health. Signed-off-by:
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Huy Nguyen authored
Use setdcbx interface to set the DCBX mode to firmware or os. If setdcbx is called with mode value of zero, the DCBX mode is set to firmware. Signed-off-by:
Huy Nguyen <huyn@mellanox.com> Signed-off-by:
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Huy Nguyen authored
DBCX by default is controlled by firmware where dcbx capability bit is set. In this mode, firmware is responsible for reading/sending the TLV packets from/to the remote partner. This patch sets up the infrastructure to move between HOST/FW DCBX control mode. Signed-off-by:
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Huy Nguyen authored
Add set/query commands for DCBX_PARAM register Signed-off-by:
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Huy Nguyen authored
Issue description: Current implementation saves the ETS settings from user in a temporal soft copy and returns this settings when user queries the ETS settings. With the new DCBX firmware, the ETS settings can be changed by firmware when the DCBX is in firmware controlled mode. Therefore, user will obtain wrong values from the temporal soft copy. Solution: 1. Read the ETS settings directly from firmware. 2. For tc_tsa: a. Initialize tc_tsa to vendor IEEE_8021QAZ_TSA_VENDOR at netdev creation. b. When reading ETS setting from FW, if the traffic class bandwidth is less than 100, set tc_tsa to IEEE_8021QAZ_TSA_ETS. This implementation solves the scenarios when the DCBX is in FW control and willing bit is on which means the ETS setting is dictated by remote switch. Also check ETS capability where needed. Signed-off-by: -
Huy Nguyen authored
Add DCBX CEE API interface for ConnectX-4. Configurations are stored in a temporary structure and are applied to the card's firmware when the CEE's setall callback function is called. Note: priority group in CEE is equivalent to traffic class in ConnectX-4 hardware spec. bw allocation per priority in CEE is not supported because ConnectX-4 only supports bw allocation per traffic class. user priority in CEE does not have an equivalent term in ConnectX-4. Therefore, user priority to priority mapping in CEE is not supported. Signed-off-by:
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Huy Nguyen authored
Make sure firmware supports qos before exposing the DCB API. Signed-off-by:
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Jason Wang authored
We use single queue even if multiqueue is enabled and let admin to enable it through ethtool later. This is used to avoid possible regression (small packet TCP stream transmission). But looks like an overkill since: - single queue user can disable multiqueue when launching qemu - brings extra troubles for the management since it needs extra admin tool in guest to enable multiqueue - multiqueue performs much better than single queue in most of the cases So this patch enables multiqueue by default: if #queues is less than or equal to #vcpu, enable as much as queue pairs; if #queues is greater than #vcpu, enable #vcpu queue pairs. Cc: Hannes Frederic Sowa <hannes@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Neil Horman <nhorman@redhat.com> Cc: Jeremy Eder <jeder@redhat.com> Cc: Marko Myllynen <myllynen@redhat.com> Cc: Maxime Coquelin <maxime.coquelin@redhat.com> Signed-off-by:
Jason Wang <jasowang@redhat.com> Acked-by:
Neil Horman <nhorman@tuxdriver.com> Acked-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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David S. Miller authored
Stefan Eichenberger says: ==================== Fix support for the MV88E6097 This patchset fixes the following two issues for the MV88E6097: - Add missing definition of g1_irqs - Add missing comment ==================== Signed-off-by: -
Stefan Eichenberger authored
Add a missing comment for the MV88E6097 because of unification. Signed-off-by:
Stefan Eichenberger <stefan.eichenberger@netmodule.com> Signed-off-by:
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Stefan Eichenberger authored
Add the missing definition of g1_irqs for MV88E6097. Signed-off-by:
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David S. Miller authored
Daniel Borkmann says: ==================== BPF cleanups and misc updates This patch set adds couple of cleanups in first few patches, exposes owner_prog_type for array maps as well as mlocked mem for maps in fdinfo, allows for mount permissions in fs and fixes various outstanding issues in selftests and samples. ==================== Signed-off-by: -
Daniel Borkmann authored
1) The test_lru_map and test_lru_dist fails building on my machine since the sys/resource.h header is not included. 2) test_verifier fails in one test case where we try to call an invalid function, since the verifier log output changed wrt printing function names. 3) Current selftest suite code relies on sysconf(_SC_NPROCESSORS_CONF) for retrieving the number of possible CPUs. This is broken at least in our scenario and really just doesn't work. glibc tries a number of things for retrieving _SC_NPROCESSORS_CONF. First it tries equivalent of /sys/devices/system/cpu/cpu[0-9]* | wc -l, if that fails, depending on the config, it either tries to count CPUs in /proc/cpuinfo, or returns the _SC_NPROCESSORS_ONLN value instead. If /proc/cpuinfo has some issue, it returns just 1 worst case. This oddity is nothing new [1], but semantics/behaviour seems to be settled. _SC_NPROCESSORS_ONLN will parse /sys/devices/system/cpu/online, if that fails it looks into /proc/stat for cpuX entries, and if also that fails for some reason, /proc/cpuinfo is consulted (and returning 1 if unlikely all breaks down). While that might match num_possible_cpus() from the kernel in some cases, it's really not guaranteed with CPU hotplugging, and can result in a buffer overflow since the array in user space could have too few number of slots, and on perpcu map lookup, the kernel will write beyond that memory of the value buffer. William Tu reported such mismatches: [...] The fact that sysconf(_SC_NPROCESSORS_CONF) != num_possible_cpu() happens when CPU hotadd is enabled. For example, in Fusion when setting vcpu.hotadd = "TRUE" or in KVM, setting ./qemu-system-x86_64 -smp 2, maxcpus=4 ... the num_possible_cpu() will be 4 and sysconf() will be 2 [2]. [...] Documentation/cputopology.txt says /sys/devices/system/cpu/possible outputs cpu_possible_mask. That is the same as in num_possible_cpus(), so first step would be to fix the _SC_NPROCESSORS_CONF calls with our own implementation. Later, we could add support to bpf(2) for passing a mask via CPU_SET(3), for example, to just select a subset of CPUs. BPF samples code needs this fix as well (at least so that people stop copying this). Thus, define bpf_num_possible_cpus() once in selftests and import it from there for the sample code to avoid duplicating it. The remaining sysconf(_SC_NPROCESSORS_CONF) in samples are unrelated. After all three issues are fixed, the test suite runs fine again: # make run_tests | grep self selftests: test_verifier [PASS] selftests: test_maps [PASS] selftests: test_lru_map [PASS] selftests: test_kmod.sh [PASS] [1] https://www.sourceware.org/ml/libc-alpha/2011-06/msg00079.html [2] https://www.mail-archive.com/netdev@vger.kernel.org/msg121183.html Fixes: 3059303f ("samples/bpf: update tracex[23] examples to use per-cpu maps") Fixes: 86af8b41 ("Add sample for adding simple drop program to link") Fixes: df570f57 ("samples/bpf: unit test for BPF_MAP_TYPE_PERCPU_ARRAY") Fixes: e1559671 ("samples/bpf: unit test for BPF_MAP_TYPE_PERCPU_HASH") Fixes: ebb676da ("bpf: Print function name in addition to function id") Fixes: 5db58faf ("bpf: Add tests for the LRU bpf_htab") Signed-off-by:Daniel Borkmann <daniel@iogearbox.net> Cc: William Tu <u9012063@gmail.com> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
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Daniel Borkmann authored
Since we recently converted the BPF filesystem over to use mount_nodev(), we now have the possibility to also hold mount options in sb's s_fs_info. This work implements mount options support for specifying permissions on the sb's inode, which will be used by tc when it manually needs to mount the fs. Signed-off-by:
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Daniel Borkmann authored
Allow for checking the owner_prog_type of a program array map. In some cases bpf(2) can return -EINVAL /after/ the verifier passed and did all the rewrites of the bpf program. The reason that lets us fail at this late stage is that program array maps are incompatible. Allow users to inspect this earlier after they got the map fd through BPF_OBJ_GET command. tc will get support for this. Also, display how much we charged the map with regards to RLIMIT_MEMLOCK. Signed-off-by:
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Daniel Borkmann authored
Commit dcf80034 ("net/sched: act_mirred: Refactor detection whether dev needs xmit at mac header") added dev_is_mac_header_xmit(); since it's also useful elsewhere, move it to if_arp.h and reuse it for BPF. Signed-off-by:
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Daniel Borkmann authored
After setup we don't need to keep user space fd number around anymore, as it also has no useful meaning for anyone, just remove it. Signed-off-by:
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Daniel Borkmann authored
Since long already bpf_func is not only about struct sk_buff * as input anymore. Make it generic as void *, so that callers don't need to cast for it each time they call BPF_PROG_RUN(). Signed-off-by:
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Dan Carpenter authored
We don't use ->heap_buf after commit 46d1efd8 ("sfc: remove Software TSO") so let's remove the last traces. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Edward Cree <ecree@solarflare.com> Signed-off-by:
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David S. Miller authored
Merge tag 'wireless-drivers-next-for-davem-2016-11-25' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for 4.10 Major changes: iwlwifi * finalize and enable dynamic queue allocation * use dev_coredumpmsg() to prevent locking the driver * small fix to pass the AID to the FW * use FW PS decisions with multi-queue ath9k * add device tree bindings * switch to use mac80211 intermediate software queues to reduce latency and fix bufferbloat wl18xx * allow scanning in AP mode ==================== Signed-off-by:
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- 27 Nov, 2016 6 commits
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Michael S. Tsirkin authored
sparse warns about context imbalance in any code that uses HARD_TX_LOCK/UNLOCK - this is because it's unable to determine that flags don't change so lock and unlock are paired. Seems easy enough to fix by adding __acquire/__release calls. With this patch af_packet.c is now sparse-clean, Signed-off-by:
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Ulrik De Bie authored
This patch depends on commit d8d26354 ("ptp: Introduce a high resolution frequency adjustment method.") The gianfar devices offer a frequency resolution of about 0.46 ppb (depends on actual value of tmr_add, for the calculation assumed 0x80000000). This patch lets users of the device benefit from the increased frequency resolution when tuning the clock. Thanks to the rounding the maximum error between the requested frequency and the applied frequency will then be about 0.23 ppb. Tested on a v3.3.8 kernel on a real gianfar device. Verified compilation on net-next (currently at v4.9-rc5). Signed-off-by:
Ulrik De Bie <ulrik.debie-os@e2big.org> Signed-off-by:
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Eric Dumazet authored
Per RX ring packets/bytes counters are not protected by global priv->stats_lock. Better not confuse the reader, and use READ_ONCE() to show we read these counters without surrounding synchronization. Interrupt moderation is best effort, and we do not really care of ultra precise counters. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller authored
udplite conflict is resolved by taking what 'net-next' did which removed the backlog receive method assignment, since it is no longer necessary. Two entries were added to the non-priv ethtool operations switch statement, one in 'net' and one in 'net-next, so simple overlapping changes. Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs splice fix from Al Viro. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fix default_file_splice_read()
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Al Viro authored
Botched calculation of number of pages. As the result, we were dropping pieces when doing splice to pipe from e.g. 9p. Reported-by:
Al Viro <viro@zeniv.linux.org.uk>
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- 26 Nov, 2016 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c fixes from Wolfram Sang: "Here is a revert and two bugfixes for the I2C designware driver. Please note that we are still hunting down a regression for the i2c-octeon driver. While there is a fix pending, we have unclear feedback from the testers currently. An rc8 would be quite helpful for this case" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: Revert "i2c: designware: do not disable adapter after transfer" i2c: designware: fix rx fifo depth tracking i2c: designware: report short transfers
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