- 30 Nov, 2016 40 commits
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Alexei Starovoitov authored
this #include is unnecessary and brings whole set of other headers into cgroup-defs.h. Remove it. Fixes: 30070984 ("cgroup: add support for eBPF programs") Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Acked-by:
Rami Rosen <roszenrami@gmail.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Daniel Mack <daniel@zonque.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Zhang Shengju authored
Currently loop index 'idx' is used as the index in the neigh list of interest. It's increased only when the neigh is dumped. It's not the absolute index in the list. Because there is no info to record which neigh has already be scanned by previous loop. This will cause the filtered out neighs to be scanned mulitple times. This patch make idx as the absolute index in the list, it will increase no matter whether the neigh is filtered. This will prevent the above problem. And this is in line with other dump functions. v2: - take David Ahern's advice to do simple change Signed-off-by:
Zhang Shengju <zhangshengju@cmss.chinamobile.com> Signed-off-by:
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Alexei Starovoitov authored
Fix the following build error: HOSTCC samples/bpf/test_lru_dist.o ../samples/bpf/test_lru_dist.c:25:22: fatal error: bpf_util.h: No such file or directory This is due to objtree != srctree. Use srctree, since that's where bpf_util.h is located. Fixes: e00c7b21 ("bpf: fix multiple issues in selftest suite and samples") Signed-off-by:
David Ahern <dsa@cumulusnetworks.com> Signed-off-by:
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Zhang Shengju authored
This patch replaces printk() with netdev_err() for macvtap device. Signed-off-by:
Jason Wang <jasowang@redhat.com> Signed-off-by:
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David S. Miller authored
Raghu Vatsavayi says: ==================== liquidio VF operations This patchseries adds support for VF device specific operations like mailbox, queues and register access. This V3 patchset also has changes based on comments form earlier versions: 1) Removed extra 'void *' casting. 2) Fixed all cross compilations issues reported on S390 and Powerpc architectures. Please apply the patches in following order as these patches depend on each other. ==================== Signed-off-by: -
Raghu Vatsavayi authored
Adds support for VF initialization and destroy resources. Signed-off-by:
Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by:
Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by:
Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by:
Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by:
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Raghu Vatsavayi authored
Adds support for VF interrupt processing. Signed-off-by:
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Raghu Vatsavayi authored
Adds support for VF mailbox setup. Signed-off-by:
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Raghu Vatsavayi authored
Adds support for initializing softcommand, dispatch and instructions queues for VF. Signed-off-by:
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Raghu Vatsavayi authored
This patch adds support for VF device register access. Signed-off-by:
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Raghu Vatsavayi authored
Adds support for configuring VF input/output queues. Signed-off-by:
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Raghu Vatsavayi authored
Adds support for setting up VF configuration. Signed-off-by:
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Raghu Vatsavayi authored
Adds support for cn23xx VF probe and registration. Signed-off-by:
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Raghu Vatsavayi authored
Adds support for CN23xx VF registers. Signed-off-by:
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Sargun Dhillon authored
This patch modifies test_cgrp2_attach to use getopt so we can use standard command line parsing. It also adds an option to run the program in detach only mode. This does not attach a new filter at the cgroup, but only runs the detach command. Lastly, it changes the attach code to not detach and then attach. It relies on the 'hotswap' behaviour of CGroup BPF programs to be able to change in-place. If detach-then-attach behaviour needs to be tested, the example can be run in detach only mode prior to attachment. Signed-off-by:
Sargun Dhillon <sargun@sargun.me> Acked-by:
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Philippe Reynes authored
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by:Philippe Reynes <tremyfr@gmail.com> Acked-by:
Rasesh Mody <Rasesh.Mody@cavium.com> Signed-off-by:
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Daniel Borkmann authored
Add an IFLA_XDP_FLAGS attribute that can be passed for setting up XDP along with IFLA_XDP_FD, which eventually allows user space to implement typical add/replace/delete logic for programs. Right now, calling into dev_change_xdp_fd() will always replace previous programs. When passed XDP_FLAGS_UPDATE_IF_NOEXIST, we can handle this more graceful when requested by returning -EBUSY in case we try to attach a new program, but we find that another one is already attached. This will be used by upcoming front-end for iproute2 as well. Signed-off-by:
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David S. Miller authored
Florian Fainelli says: ==================== net: phy: broadcom: Support for PHY counters This patch series adds support for reading the Broadcom PHYs internal counters. Changes in v3: - fixed the allocation of priv->stats in bcm7xxx Changes in v2: - fixed modular build reported by kbuild - constify array of stats ==================== Signed-off-by: -
Florian Fainelli authored
Broadcom BCM7xxx internal PHYs can leverage the Broadcom PHY library module PHY error counters helper functions, just implement the appropriate PHY driver function calls to do so. We need to allocate some storage space for our PHY statistics, and provide it to the Broadcom PHY library, so do this in a specific probe function, and slightly wrap the get_stats function call. Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Florian Fainelli authored
Broadcom PHYs expose a number of PHY error counters: receive errors, false carrier sense, SerDes BER count, local and remote receive errors. Add support code to allow retrieving these error counters. Since the Broadcom PHY library code is used by several drivers, make it possible for them to specify the storage for the software copy of the statistics. Signed-off-by:
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Edward Cree authored
Rationale: The differences between Falcon and Siena are in many ways larger than those between Siena and EF10 (despite Siena being nominally "Falcon- architecture"); for instance, Falcon has no MCPU, so there is no MCDI. Removing Falcon support from the sfc driver should simplify the latter, and avoid the possibility of Falcon support being broken by changes to sfc (which are rarely if ever tested on Falcon, it being end-of-lifed hardware). The sfc-falcon driver created in this changeset is essentially a copy of the sfc driver, but with Siena- and EF10-specific code, including MCDI, removed and with the "efx_" identifier prefix changed to "ef4_" (for "EFX 4000- series") to avoid collisions when both drivers are built-in. This changeset removes Falcon from the sfc driver's PCI ID table; then in sfc I've removed obvious Falcon-related code: I removed the Falcon NIC functions, Falcon PHY code, and EFX_REV_FALCON_*, then fixed up everything that referenced them. Also, increment minor version of both drivers (to 4.1). For now, CONFIG_SFC selects CONFIG_SFC_FALCON, so that updating old configs doesn't cause Falcon support to disappear; but that should be undone at some point in the future. Signed-off-by:
Edward Cree <ecree@solarflare.com> Signed-off-by:
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Yegor Yefremov authored
This patch adds support for ethtool's '-r' command. Restarting N-WAY negotiation can be useful to activate newly changed EEE settings etc. Signed-off-by:
Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by:
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David S. Miller authored
Yuchung Cheng says: ==================== tcp: sender chronographs instrumentation This patch set provides instrumentation on TCP sender limitations. While developing the BBR congestion control, we noticed that TCP sending process is often limited by factors unrelated to congestion control: insufficient sender buffer and/or insufficient receive window/buffer to saturate the network bandwidth. Unfortunately these limits are not visible to the users and often the poor performance is attributed to the congestion control of choice. Thie patch aims to help users get the high level understanding of where sending process is limited by, similar to the TCP_INFO design. It is not to replace detailed kernel tracing and instrumentation facilities. In addition this patch set provide a new option to the timestamping work to instrument these limits on application data unit. For exampe, one can use SO_TIMESTAMPING and this patch set to measure the how long a particular HTTP response is limited by small receive window. Patch set was initially written by Francis Yan then polished by Yuchung Cheng, with lots of help from Eric Dumazet and Soheil Hassas Yeganeh. ==================== Acked-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Francis Yan authored
This patch exports the sender chronograph stats via the socket SO_TIMESTAMPING channel. Currently we can instrument how long a particular application unit of data was queued in TCP by tracking SOF_TIMESTAMPING_TX_SOFTWARE and SOF_TIMESTAMPING_TX_SCHED. Having these sender chronograph stats exported simultaneously along with these timestamps allow further breaking down the various sender limitation. For example, a video server can tell if a particular chunk of video on a connection takes a long time to deliver because TCP was experiencing small receive window. It is not possible to tell before this patch without packet traces. To prepare these stats, the user needs to set SOF_TIMESTAMPING_OPT_STATS and SOF_TIMESTAMPING_OPT_TSONLY flags while requesting other SOF_TIMESTAMPING TX timestamps. When the timestamps are available in the error queue, the stats are returned in a separate control message of type SCM_TIMESTAMPING_OPT_STATS, in a list of TLVs (struct nlattr) of types: TCP_NLA_BUSY_TIME, TCP_NLA_RWND_LIMITED, TCP_NLA_SNDBUF_LIMITED. Unit is microsecond. Signed-off-by:
Francis Yan <francisyyan@gmail.com> Signed-off-by:
Yuchung Cheng <ycheng@google.com> Signed-off-by:
Soheil Hassas Yeganeh <soheil@google.com> Acked-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
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Francis Yan authored
This patch exports all the sender chronograph measurements collected in the previous patches to TCP_INFO interface. Note that busy time exported includes all the other sending limits (rwnd-limited, sndbuf-limited). Internally the time unit is jiffy but externally the measurements are in microseconds for future extensions. Signed-off-by:
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Francis Yan authored
This patch measures the amount of time when TCP runs out of new data to send to the network due to insufficient send buffer, while TCP is still busy delivering (i.e. write queue is not empty). The goal is to indicate either the send buffer autotuning or user SO_SNDBUF setting has resulted network under-utilization. The measurement starts conservatively by checking various conditions to minimize false claims (i.e. under-estimation is more likely). The measurement stops when the SOCK_NOSPACE flag is cleared. But it does not account the time elapsed till the next application write. Also the measurement only starts if the sender is still busy sending data, s.t. the limit accounted is part of the total busy time. Signed-off-by:
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Francis Yan authored
This patch measures the total time when the TCP stops sending because the receiver's advertised window is not large enough. Note that once the limit is lifted we are likely in the busy status if we have data pending. Signed-off-by:
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Francis Yan authored
This patch measures TCP busy time, which is defined as the period of time when sender has data (or FIN) to send. The time starts when data is buffered and stops when the write queue is flushed by ACKs or error events. Note the busy time does not include SYN time, unless data is included in SYN (i.e. Fast Open). It does include FIN time even if the FIN carries no payload. Excluding pure FIN is possible but would incur one additional test in the fast path, which may not be worth it. Signed-off-by:
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Francis Yan authored
This patch implements the skeleton of the TCP chronograph instrumentation on sender side limits: 1) idle (unspec) 2) busy sending data other than 3-4 below 3) rwnd-limited 4) sndbuf-limited The limits are enumerated 'tcp_chrono'. Since a connection in theory can idle forever, we do not track the actual length of this uninteresting idle period. For the rest we track how long the sender spends in each limit. At any point during the life time of a connection, the sender must be in one of the four states. If there are multiple conditions worthy of tracking in a chronograph then the highest priority enum takes precedence over the other conditions. So that if something "more interesting" starts happening, stop the previous chrono and start a new one. The time unit is jiffy(u32) in order to save space in tcp_sock. This implies application must sample the stats no longer than every 49 days of 1ms jiffy. Signed-off-by:
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Yegor Yefremov authored
Add the ability to query and set Energy Efficient Ethernet parameters via ethtool for applicable devices. This patch doesn't activate full EEE support in cpsw driver, but it enables reading and writing EEE advertising settings. This way one can disable advertising EEE for certain speeds. Signed-off-by:
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Vitaly Kuznetsov authored
When we change MTU or the number of channels on a netvsc device we get the following logged: hv_netvsc bf5edba8...: net device safe to remove hv_netvsc: hv_netvsc channel opened successfully hv_netvsc bf5edba8...: Send section size: 6144, Section count:2560 hv_netvsc bf5edba8...: Device MAC 00:15:5d:1e:91:12 link state up This information is useful as debug at most. Signed-off-by:
Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by:
Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by:
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David S. Miller authored
Jiri Pirko says: ==================== mlxsw: couple of enhancements and fixes Couple of enhancements and fixes from Ido. ==================== Signed-off-by: -
Ido Schimmel authored
We call bus->init() before allocating 'lag.mapping'. Change the order of operations in removal path to reflect that. This makes the error path of mlxsw_core_bus_device_register() symmetric with mlxsw_core_bus_device_unregister(). Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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Ido Schimmel authored
Without this rollback, the thermal zone is still registered during the error path, whereas its private data is freed upon the destruction of the underlying bus device due to the use of devm_kzalloc(). This results in use after free. Fix this by calling mlxsw_thermal_fini() from the appropriate place in the error path. Fixes: a50c1e35 ("mlxsw: core: Implement thermal zone") Signed-off-by:
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Ido Schimmel authored
The shared buffer pools are containers whose size is used to calculate the maximum usage for packets from / to a specific port / {port, PG/TC}, when dynamic threshold is employed. While it's perfectly fine for the sum of the pools to exceed the maximum size of the shared buffer, a single pool cannot. Add a check when the pool size is set and forbid sizes larger than the maximum size of the shared buffer. Without the patch: $ devlink sb pool set pci/0000:03:00.0 pool 0 size 999999999 thtype dynamic // No error is returned With the patch: $ devlink sb pool set pci/0000:03:00.0 pool 0 size 999999999 thtype dynamic devlink answers: Invalid argument Signed-off-by: -
Ido Schimmel authored
We need to be able to limit the size of shared buffer pools, so query the maximum size from the device during init. Signed-off-by:
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Arnd Bergmann authored
The newly added switchib driver fails to link if MLXSW_PCI=m: drivers/net/ethernet/mellanox/mlxsw/mlxsw_switchib.o: In function^Cmlxsw_sib_module_exit': switchib.c:(.exit.text+0x8): undefined reference to `mlxsw_pci_driver_unregister' switchib.c:(.exit.text+0x10): undefined reference to `mlxsw_pci_driver_unregister' drivers/net/ethernet/mellanox/mlxsw/mlxsw_switchib.o: In function `mlxsw_sib_module_init': switchib.c:(.init.text+0x28): undefined reference to `mlxsw_pci_driver_register' switchib.c:(.init.text+0x38): undefined reference to `mlxsw_pci_driver_register' switchib.c:(.init.text+0x48): undefined reference to `mlxsw_pci_driver_unregister' The other two such sub-drivers have a dependency, so add the same one here. In theory we could allow this driver if MLXSW_PCI is disabled, but it's probably not worth it. Fixes: d1ba5263 ("mlxsw: switchib: Introduce SwitchIB and SwitchIB silicon driver") Reviewed-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Geert Uytterhoeven authored
If device_release_driver(&phydev->mdio.dev) is called, it releases all resources belonging to the PHY device. Hence the subsequent call to phy_led_triggers_unregister() will access already freed memory when unregistering the LEDs. Move the call to phy_led_triggers_unregister() before the possible call to device_release_driver() to fix this. Fixes: 2e0bc452 ("net: phy: leds: add support for led triggers on phy link state change") Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Tested-by:
Zach Brown <zach.brown@ni.com> Signed-off-by:
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Pavel Machek authored
Fix comments, add some new, and make debugfs output consistent. Signed-off-by:
Pavel Machek <pavel@denx.de> Signed-off-by:
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Daniel Mack authored
There's a 'not' missing in one paragraph. Add it. Fixes: 30070984 ("cgroup: add support for eBPF programs") Signed-off-by:
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