- 27 Jun, 2017 22 commits
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Jakub Kicinski authored
Based on struct net_device_ops figure out if netdev is a nfp_repr. Use this knowledge to convert netdev directly to nfp_port. Signed-off-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by:
Simon Horman <simon.horman@netronome.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jakub Kicinski authored
Apps shouldn't declare their own struct net_device_ops for representors, this makes sharing code harder. Add necessary nfp_app callbacks and move the definition of representors' struct net_device_ops to common code. Signed-off-by:
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Jakub Kicinski authored
Thanks to the fact that all representors will now have an nfp_port, we can depend on information there to provide a app-independent .ndo_get_stats64(). Signed-off-by:
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Jakub Kicinski authored
nfp_port is an abstraction which is supposed to allow us sharing code between different netdev types (vNIC vs repr). Spawn ports for PFs and VFs to enable this sharing. Signed-off-by:
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Jakub Kicinski authored
Add a cleanup callback for undoing what app init callback did. Make flower allocate its private structure on init and free it from the new callback. While at it remember to set the app pointer to NULL on the error path to avoid any races while probe path unwinds. Signed-off-by:
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Jakub Kicinski authored
Remove unused nfp_cpp_area_check_range() function. Signed-off-by:
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Jakub Kicinski authored
Move most of the helper for mapping RTsyms from nfp_net_main.c to nfpcore. Use the new helper directly for mapping MAC statistics, since they don't need to include the PCIe interface ID in the symbol name. Signed-off-by:
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Jakub Kicinski authored
nfp_net_map_area() is a helper for mapping areas of NFP memory defined in nfp_net_main.c. Move it to nfpcore to allow reuse and rename accordingly. Create an additional helper - nfp_cpp_area_alloc_acquire() the opposite of already existing nfp_cpp_area_release_free(). Signed-off-by:
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Jakub Kicinski authored
We support application FW being either loaded automatically at boot from flash or (more commonly) by the driver from disk. If FW is not found on disk and nothing is preloaded users are faced with this unintuitive error: nfp 0000:04:00.0: nfp: Failed to find PF symbol _pf0_net_bar0 We can do better. Since we rely on symbol table being present - check early if it could be correctly read out of from the device and if not print a more informative message. Signed-off-by:
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David S. Miller authored
Paolo Abeni says: ==================== ipv6: udp: exploit dev_scratch helpers When bringing in the recent cache optimization for the UDP protocol, I forgot to leverage the newly introduced scratched area helpers in the UDPv6 code path. As a result, the UDPv6 implementation suffers some unnecessary performance penality when compared to v4. This series aim to bring back UDPv6 on equal footing in respect to v4. The first patch moves the shared helpers to the common include files, while the second uses them in the UDPv6 code. This gives 5-8% performance improvement for a system under flood with small UDPv6 packets. The performance delta is less than the one reported on the original patch set because the UDPv6 code path already leveraged some of the optimization. ==================== Signed-off-by: -
Paolo Abeni authored
The commit b65ac446 ("udp: try to avoid 2 cache miss on dequeue") leveraged the scratched area helpers for UDP v4 but I forgot to update accordingly the IPv6 code path. This change extends the scratch area usage to the IPv6 code, synching the two implementations and giving some performance benefit. IPv6 is again almost on the same level of IPv4, performance-wide. Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
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Paolo Abeni authored
So that they can be later used by the IPv6 code, too. Also lift the comments a bit. Signed-off-by:
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Dave Watson authored
If icsk_ulp_ops is unset, it dereferences a null ptr. Add a null ptr check. BUG: KASAN: null-ptr-deref in copy_to_user include/linux/uaccess.h:168 [inline] BUG: KASAN: null-ptr-deref in do_tcp_getsockopt.isra.33+0x24f/0x1e30 net/ipv4/tcp.c:3057 Read of size 4 at addr 0000000000000020 by task syz-executor1/15452 Signed-off-by:
Dave Watson <davejwatson@fb.com> Reported-by:
"Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> Signed-off-by:
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Matthias Schiffer authored
The access to the wrong variable could lead to a NULL dereference and possibly other invalid memory reads in vxlan newlink/changelink requests with a IFLA_MTU attribute. Fixes: a985343b "vxlan: refactor verification and application of configuration" Signed-off-by:
Matthias Schiffer <mschiffer@universe-factory.net> Signed-off-by:
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Vincent Bernat authored
It dates back from 2.1.16 and is obsolete since 2.1.68 when the current rule system has been introduced. Signed-off-by:
Vincent Bernat <vincent@bernat.im> Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in en_dbg debug message Signed-off-by:
Colin Ian King <colin.king@canonical.com> Acked-by:
Tariq Toukan <tariqt@mellanox.com> Signed-off-by:
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David S. Miller authored
Matthias Schiffer says: ==================== net: add netlink_ext_ack support to rtnl_link_ops Same changes as http://patchwork.ozlabs.org/patch/780351/ , split into separate patches for each rtnl_link_ops field as requested. ==================== Signed-off-by:
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Matthias Schiffer authored
Add support for extended error reporting. Signed-off-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
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Matthias Schiffer authored
Add support for extended error reporting. Signed-off-by:
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Matthias Schiffer authored
Add support for extended error reporting. Signed-off-by:
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Matthias Schiffer authored
Add support for extended error reporting. Signed-off-by:
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Matthias Schiffer authored
Add support for extended error reporting. Signed-off-by:
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- 25 Jun, 2017 18 commits
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Michael Grzeschik authored
In case the MACB is directly connected to a non-mdio PHY/device, it should be possible to provide a fixed link configuration in the DT. Signed-off-by:
Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by:
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David S. Miller authored
Merge tag 'wireless-drivers-next-for-davem-2017-06-25' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for 4.13 New features and bug fixes to quite a few different drivers, but nothing really special standing out. What makes me happy that we have now more vendors actively contributing to upstream drivers. In this pull request we have patches from Broadcom, Intel, Qualcomm, Realtek and Redpine Signals, and I still have patches from Marvell and Quantenna pending in patchwork. Now that's something comparing to how things looked 11 years ago in Jeff Garzik's "State of the Union: Wireless" email: https://lkml.org/lkml/2006/1/5/671 Major changes: wil6210 * add low level RF sector interface via nl80211 vendor commands * add module parameter ftm_mode to load separate firmware for factory testing * support devices with different PCIe bar size * add support for PCIe D3hot in system suspend * remove ioctl interface which should not be in a wireless driver ath10k * go back to using dma_alloc_coherent() for firmware scratch memory * add per chain RSSI reporting brcmfmac * add support multi-scheduled scan * add scheduled scan support for specified BSSIDs * add support for brcm43430 revision 0 wlcore * add wil1285 compatible rsi * add RS9113 USB support iwlwifi * FW API documentation improvements (for tools and htmldoc) * continuing work for the new A000 family * bump the maximum supported FW API to 31 * improve the differentiation between 8000, 9000 and A000 families ==================== Signed-off-by:
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David S. Miller authored
Marcelo Ricardo Leitner says: ==================== sctp: RFC 4960 Errata fixes This patchset contains fixes for 4 Errata topics from https://tools.ietf.org/html/draft-ietf-tsvwg-rfc4960-errata-01 Namely, sections: 3.12. Order of Adjustments of partial_bytes_acked and cwnd 3.22. Increase of partial_bytes_acked in Congestion Avoidance 3.26. CWND Increase in Congestion Avoidance Phase 3.27. Refresh of cwnd and ssthresh after Idle Period Tests performed with netperf using net namespaces, with drop rates at 0%, 0.5% and 1% by netem, IPv4 and IPv6, 10 runs for each combination. I couldn't spot differences on the stats. With and without these patches the results vary in a similar way in terms of throughput and retransmissions. Tests with 20ms delay and 20ms delay + drops at 0.5% and 1% also had results in a similar way, no noticeable difference. Looking at cwnd, it was possible to notice slightly lower values being used while still sustaining same throughput profile. ==================== Signed-off-by:
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Marcelo Ricardo Leitner authored
RFC 4960 Errata 3.27 identifies that ssthresh should be adjusted to cwnd because otherwise it could cause the transport to lock into congestion avoidance phase specially if ssthresh was previously reduced by some packet drop, leading to poor performance. The Errata says to adjust ssthresh to cwnd only once, though the same goal is achieved by updating it every time we update cwnd too. The caveat is that we could take longer to get back up to speed but that should be compensated by the fact that we don't adjust on RTO basis (as RFC says) but based on Heartbeats, which are usually way longer. See-also: https://tools.ietf.org/html/draft-ietf-tsvwg-rfc4960-errata-01#section-3.27Signed-off-by:
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by:
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Marcelo Ricardo Leitner authored
RFC4960 Errata 3.26 identified that at the same time RFC4960 states that cwnd should never grow more than 1*MTU per RTT, Section 7.2.2 was underspecified and as described could allow increasing cwnd more than that. This patch updates it so partial_bytes_acked is maxed to cwnd if flight_size doesn't reach cwnd, protecting it from such case. See-also: https://tools.ietf.org/html/draft-ietf-tsvwg-rfc4960-errata-01#section-3.26Signed-off-by:
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Marcelo Ricardo Leitner authored
As per RFC4960 Errata 3.22, this condition is not needed anymore as it could cause the partial_bytes_acked to not consider the TSNs acked in the Gap Ack Blocks although they were received by the peer successfully. This patch thus drops the check for new Cumulative TSN Ack Point, leaving just the flight_size < cwnd one. See-also: https://tools.ietf.org/html/draft-ietf-tsvwg-rfc4960-errata-01#section-3.22Signed-off-by:
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Marcelo Ricardo Leitner authored
RFC4960 Errata 3.12 says RFC4960 is unclear about the order of adjustments applied to partial_bytes_acked and cwnd in the congestion avoidance phase, and that the actual order should be: partial_bytes_acked is reset to (partial_bytes_acked - cwnd). Next, cwnd is increased by MTU. We were first increasing cwnd, and then subtracting the new value pba, which leads to a different result as pba is smaller than what it should and could cause cwnd to not grow as much. See-also: https://tools.ietf.org/html/draft-ietf-tsvwg-rfc4960-errata-01#section-3.12Signed-off-by:
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Mintz, Yuval authored
Looks like commit f663dd9a ("net: core: explicitly select a txq before doing l2 forwarding") has removed the need for this dedicated xmit function [it even explicitly states so in its commit log message] but it hasn't removed the definition of the ndo. Signed-off-by:
Yuval Mintz <Yuval.Mintz@cavium.com> CC: Jason Wang <jasowang@redhat.com> CC: John Fastabend <john.r.fastabend@intel.com> Signed-off-by:
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David S. Miller authored
Timur Tabi says: ==================== net: qcom/emac: various minor improvements A collection of minor fixes and features to the Qualcomm Technologies EMAC network driver. ==================== Signed-off-by: -
Timur Tabi authored
On emulation systems, the EMAC's internal PHY ("SGMII") is not present, but is not needed for network functionality. So just display a warning message and ignore the SGMII. Tested-by:Philip Elcan <pelcan@codeaurora.org> Tested-by:
Adam Wallis <awallis@codeaurora.org> Signed-off-by:
Timur Tabi <timur@codeaurora.org> Signed-off-by:
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Timur Tabi authored
On ACPI systems, the driver depends on firmware pre-initializing the EMAC because we don't have access to the clocks, and the EMAC has specific clock programming requirements. Therefore, we don't want to reset the EMAC while we are completing the initialization. Tested-by:
Richard Ruigrok <rruigrok@codeaurora.org> Signed-off-by:
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Timur Tabi authored
The shutdown function halts all DMA and interrupts, so that all operations are discontinued when the system shuts down, e.g. via kexec or a forced reboot. Tested-by:
Tyler Baicar <tbaicar@codeaurora.org> Signed-off-by:
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Mateusz Jurczyk authored
Verify that the caller-provided sockaddr structure is large enough to contain the sa_family field, before accessing it in bind() and connect() handlers of the AF_IUCV socket. Since neither syscall enforces a minimum size of the corresponding memory region, very short sockaddrs (zero or one byte long) result in operating on uninitialized memory while referencing .sa_family. Fixes: 52a82e23 ("af_iucv: Validate socket address length in iucv_sock_bind()") Signed-off-by:
Mateusz Jurczyk <mjurczyk@google.com> [jwi: removed unneeded null-check for addr] Signed-off-by:
Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by:
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Hans Wippel authored
Use proper endianness conversion for an skb protocol assignment. Given that IUCV is only available on big endian systems (s390), this simply avoids an endianness warning reported by sparse. Signed-off-by:
Hans Wippel <hwippel@linux.vnet.ibm.com> Reviewed-by:
Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by:
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Dan Carpenter authored
We're accidentally returning the wrong variable. "cmode" is uninitialized at this point so it causes a static checker warning. Fixes: 6335e9f2 ("net: dsa: mv88e6xxx: mv88e6390X SERDES support") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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David S. Miller authored
Simon Horman says: ==================== nfp: add flower app with representors this series adds a flower app to the NFP driver. It initialises four types of netdevs: * PF netdev - lower-device for communication of packets to device * PF representor netdev * VF representor netdevs * Phys port representor netdevs The PF netdev acts as a lower-device which sends and receives packets to and from the firmware. The representors act as upper-devices. For TX representors attach a metadata dst to the skb which is used by the PF netdev to prepend metadata to the packet before forwarding the firmware. On RX the PF netdev looks up the representor based on the prepended metadata received from the firmware and forwards the skb to the representor after removing the metadata. Control queues are used to send and receive control messages which are used to communicate configuration information with the firmware. These are in separate vNIC to the queues belonging to the PF netdev. The control queues are not exposed to use-space via a netdev or any other means. The first 9 patches of this series provide app-independent infrastructure to instantiate representors and the remaining 3 patches provide an app which uses this infrastructure. As the name implies this app is targeted at providing offload of TC flower. Flower offload - allowing classifiers to be attached to representor netdevs - is intended to be provided by follow-up patches at which point it will become the dominant feature of the app. Minor changes since v2 noted in changelogs of individual patches. Review of v1 and v2 of this patchset have been addressed either through discussion on-list or changes in this patchset. ==================== Signed-off-by: -
Simon Horman authored
Initialise VF and PF representors in flower app. Based in part on work by Benjamin LaHaise, Bert van Leeuwen and Jakub Kicinski. Signed-off-by:
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Simon Horman authored
Add app for flower offload. At this point the PF netdev and phys port representor netdevs are initialised. Follow-up work will add support for VF and PF representors and beyond that offloading the flower classifier. Based in part on work by Benjamin LaHaise and Bert van Leeuwen. Signed-off-by:
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