- 10 Sep, 2020 40 commits
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David S. Miller authored
Karsten Graul says: ==================== net/smc: updates 2020-09-10 Please apply the following patch series for smc to netdev's net-next tree. This patch series is a mix of various improvements and cleanups. The patches 1 and 10 improve the handling of large parallel workloads. Patch 8 corrects a kernel config default for config CCWGROUP on s390. Patch 9 allows userspace tools to retrieve socket information for more sockets. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Karsten Graul authored
There are 6 types of workers which exist per smc connection. 3 of them are used for listen and handshake processing, another 2 are used for close and abort processing and 1 is the tx worker that moves calls to sleeping functions into a worker. To prevent flooding of the system work queue when many connections are opened or closed at the same time (some pattern uperf implements), move those workers to one of 3 smc-specific work queues. Two work queues are module-global and used for handshake and close workers. The third work queue is defined per link group and used by the tx workers that may sleep waiting for resources of this link group. And in smc_llc_enqueue() queue the llc_event_work work to the system prio work queue because its critical that this work is started fast. Reviewed-by:
Ursula Braun <ubraun@linux.ibm.com> Signed-off-by:
Karsten Graul <kgraul@linux.ibm.com> Signed-off-by:
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Guvenc Gulce authored
When the netlink messages to be sent to the userspace are too big for a single netlink message, send them in chunks using the netlink_dump infrastructure. Modify the smc diag dump code so that it can signal to the netlink_dump infrastructure that it needs to send more data. Signed-off-by:
Guvenc Gulce <guvenc@linux.ibm.com> Signed-off-by:
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Guvenc Gulce authored
arch/s390/net/pnet.c uses ccwgroup function dev_is_ccwgroup() in pnetid_by_dev_port(). For s390 the net/smc code makes use of function pnetid_by_dev_port(). Make sure ccwgroup is built into the kernel, if smc is to be built into the kernel. Signed-off-by:
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Ursula Braun authored
smc_lgr_cleanup_early() schedules the free worker with delay. DMB unregistering occurs in this delayed worker increasing the risk to reach the SMCD SBA limit without need. Terminate the linkgroup immediately, since termination means early DMB unregistering. For SMCD the global smc_server_lgr_pending lock is given up early. A linkgroup to be given up with smc_lgr_cleanup_early() may already contain more than one connection. Using __smc_lgr_terminate() in smc_lgr_cleanup_early() covers this. And consolidate smc_ism_put_vlan() and smc_put_device() into smc_lgr_free() only. Signed-off-by:
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Ursula Braun authored
smc_listen_work() contains already an smc_listen_decline() exit. Use this exit for smc_listen_rdma_finish() problems as well. Signed-off-by:
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Ursula Braun authored
Move check whether peer can be reached into smc_pnet_find_ism_by_pnetid(). Thus searching continues for another ism device, if check fails. Signed-off-by:
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Ursula Braun authored
smc_clc_send_accept() and smc_clc_send_confirm() are quite similar. Move common code into a separate function smc_clc_send_confirm_accept(). And introduce separate SMCD and SMCR struct definitions for CLC accept resp. confirm. No functional change. Signed-off-by:
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Ursula Braun authored
Reduce stack size for smc_listen_work() and smc_clc_send_proposal() by dynamic allocation of the CLC buffer to be received or sent. Signed-off-by:
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Ursula Braun authored
Field names "srv_first_contact" and "cln_first_contact" are misleading, since they apply to both, server and client. Rename them to "first_contact_peer" and "first_contact_local". Rename "ism_gid" by the more precise name "ism_peer_gid". Rename version constant "SMC_CLC_V1" into "SMC_V1". No functional change. Signed-off-by:
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Ursula Braun authored
SMC starts a separate tcp_listen worker for every SMC socket in state SMC_LISTEN, and can accept an incoming connection request only, if this worker is really running and waiting in kernel_accept(). But the number of running workers is limited. This patch reworks the listening SMC code and starts a tcp_listen worker after the SYN-ACK handshake on the internal clc-socket only. Suggested-by:
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David S. Miller authored
Krzysztof Kozlowski says: ==================== nfc: s3fwrn5: Few cleanups Changes since v2: 1. Fix dtschema ID after rename (patch 1/8). 2. Apply patch 9/9 (defconfig change). Changes since v1: 1. Rename dtschema file and add additionalProperties:false, as Rob suggested, 2. Add Marek's tested-by, 3. New patches: #4, #5, #6, #7 and #9. ==================== Signed-off-by: -
Krzysztof Kozlowski authored
Since "s3fwrn5" is not a valid vendor prefix, use new GPIO properties instead of the deprecated. Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Tested-by:
Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by:
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Krzysztof Kozlowski authored
Robert Bałdyga's email does not work (bounces) since 2016 so remove it. Additionally there are no review/ack/tested tags from Krzysztof Opasiak so it looks like the driver is not supported. As a maintainer of Samsung ARM/ARM64 SoC, I can take care about this driver and provide some review. However clearly driver is not in supported mode as I do not work in Samsung anymore. Signed-off-by:
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Krzysztof Kozlowski authored
Two functions accept pointer to struct s3fwrn5_fw_info but do not modify the contents. Make them const so the code is a little bit safer. Signed-off-by:
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Krzysztof Kozlowski authored
The driver uses crypto hash functions so it needs to select CRYPTO_HASH. This fixes build errors: arc-linux-ld: drivers/nfc/s3fwrn5/firmware.o: in function `s3fwrn5_fw_download': firmware.c:(.text+0x152): undefined reference to `crypto_alloc_shash' Signed-off-by:
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Krzysztof Kozlowski authored
The local variable 'ret' can be removed: drivers/nfc/s3fwrn5/i2c.c:167:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] Signed-off-by:
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Krzysztof Kozlowski authored
The device tree property prefix describes the vendor, which in case of S3FWRN5 chip is Samsung. Therefore the "s3fwrn5" prefix for "en-gpios" and "fw-gpios" is not correct and should be deprecated. Introduce properly named properties for these GPIOs but still support deprecated ones. Signed-off-by:
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Krzysztof Kozlowski authored
The device tree property prefix describes the vendor, which in case of S3FWRN5 chip is Samsung. Therefore the "s3fwrn5" prefix for "en-gpios" and "fw-gpios" is not correct and should be deprecated. Introduce properly named properties for these GPIOs and rename the fw-gpios" to "wake-gpios" to better describe its purpose. Signed-off-by:
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Krzysztof Kozlowski authored
Convert the Samsung S3FWRN5 NCI NFC controller bindings to dtschema. This is conversion only so it includes properties with invalid prefixes (s3fwrn5,en-gpios) which should be addressed later. Signed-off-by:
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David S. Miller authored
Wang Hai says: ==================== Fix some kernel-doc warnings for hns. ==================== Signed-off-by: -
Wang Hai authored
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/huawei/hinic/hinic_hw_eqs.c:115: warning: Excess function parameter 'hw_handler' description in 'hinic_aeq_register_hw_cb' Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Wang Hai <wanghai38@huawei.com> Signed-off-by:
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Wang Hai authored
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/huawei/hinic/hinic_hw_api_cmd.c:382: warning: Excess function parameter 'size' description in 'api_cmd' Reported-by:
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Wang Hai authored
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/hisilicon/hns/hns_enet.c:1841: warning: Excess function parameter 'netdev' description in 'hns_set_multicast_list' drivers/net/ethernet/hisilicon/hns/hns_enet.c:1841: warning: Excess function parameter 'p' description in 'hns_set_multicast_list' Reported-by:
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Wang Hai authored
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/hisilicon/hns/hns_dsaf_xgmac.c:137: warning: Excess function parameter 'drv' description in 'hns_xgmac_enable' drivers/net/ethernet/hisilicon/hns/hns_dsaf_xgmac.c:497: warning: Excess function parameter 'cmd' description in 'hns_xgmac_get_regs' Reported-by:
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Wang Hai authored
Rename cdev to hdev. Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/hisilicon/hns/hnae.c:444: warning: Excess function parameter 'cdev' description in 'hnae_ae_unregister' Reported-by:
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Wang Hai authored
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/huawei/hinic/hinic_hw_io.c:373: warning: Excess function parameter 'sq_msix_entry' description in 'hinic_io_create_qps' drivers/net/ethernet/huawei/hinic/hinic_hw_io.c:373: warning: Excess function parameter 'rq_msix_entry' description in 'hinic_io_create_qps' Rename these wrong names. Reported-by:
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Alex Dewar authored
In the functions mvpp2_isr_handle_xlg() and mvpp2_isr_handle_gmac_internal(), the bool variable link is assigned a true value in the case that a given bit of val is set. However, if the bit is unset, no value is assigned to link and it is then passed to mvpp2_isr_handle_link() without being initialised. Fix by assigning to link the value of the bit test. Build-tested on x86. Fixes: 36cfd3a6 ("net: mvpp2: restructure "link status" interrupt handling") Signed-off-by:
Alex Dewar <alex.dewar90@gmail.com> Signed-off-by:
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Wang Hai authored
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/chelsio/cxgb3/t3_hw.c:2209: warning: Excess function parameter 'adapter' description in 'clear_sge_ctxt' drivers/net/ethernet/chelsio/cxgb3/t3_hw.c:2975: warning: Excess function parameter 'adapter' description in 't3_set_proto_sram' Reported-by:
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David S. Miller authored
Sameeh Jubran says: ==================== Enhance current features in ena driver This series adds the following: * Exposes new device stats using ethtool. * Adds and exposes the stats of xdp TX queues through ethtool. ==================== Signed-off-by: -
Sameeh Jubran authored
When using XDP every ingress packet is passed to an eBPF (xdp) program which returns an action for this packet. This patch adds counters for the number of times each such action was received. It also counts all the invalid actions received from the eBPF program. Signed-off-by:
Shay Agroskin <shayagr@amazon.com> Signed-off-by:
Sameeh Jubran <sameehj@amazon.com> Signed-off-by:
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Sameeh Jubran authored
Added statistics for TX queues that are used for XDP TX. The statistics are the same as the ones printed for regular non-XDP TX queues. The XDP queue statistics can be queried using `ethtool -S <ifname>` Signed-off-by:
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Sameeh Jubran authored
The new metrics provide granular visibility along multiple network dimensions and enable troubleshooting and remediation of issues caused by instances exceeding network performance allowances. The new statistics can be queried using ethtool command. Signed-off-by:
Guy Tzalik <gtzalik@amazon.com> Signed-off-by:
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Sameeh Jubran authored
The type of all stat fields is u64, therefore when iterating over stat fields in a stats struct, it makes sense to use an offset in 64 bit resolution. Doing so allows us to drop some of the casting that is currently used when referencing stats. Signed-off-by:
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Christoph Paasch authored
The delay was intended to be configured to "simulate" a high(er) BDP link. As such, it needs to be set as part of the loss-configuration and not as part of the netem reordering configuration. The reordering-config also requires a delay but that delay is the reordering-extend. So, a good approach is to set the reordering-extend as a function of the configured latency. E.g., 25% of the overall latency. To speed up the selftests, we limit the delay to 50ms maximum to avoid having the selftests run for too long. Finally, the intention of tc_reorder was that when it is unset, the test picks a random configuration. However, currently it is always initialized and thus the random config won't be picked up. Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/6Reported-and-reviewed-by:
Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by:
Christoph Paasch <cpaasch@apple.com> Signed-off-by:
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David S. Miller authored
Wei Wang says: ==================== tcp: add tos reflection feature This patch series adds a new tcp feature to reflect TOS value received in SYN, and send it out in SYN-ACK, and eventually set the TOS value of the established socket with this reflected TOS value. This provides a way to set the traffic class/QoS level for all traffic in the same connection to be the same as the incoming SYN. It could be useful for datacenters to provide equivalent QoS according to the incoming request. This feature is guarded by /proc/sys/net/ipv4/tcp_reflect_tos, and is by default turned off. ==================== Signed-off-by: -
Wei Wang authored
This commit adds a new TCP feature to reflect the tos value received in SYN, and send it out on the SYN-ACK, and eventually set the tos value of the established socket with this reflected tos value. This provides a way to set the traffic class/QoS level for all traffic in the same connection to be the same as the incoming SYN request. It could be useful in data centers to provide equivalent QoS according to the incoming request. This feature is guarded by /proc/sys/net/ipv4/tcp_reflect_tos, and is by default turned off. Signed-off-by:
Wei Wang <weiwan@google.com> Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Wei Wang authored
This commit adds tos as a new passed in parameter to ip_build_and_send_pkt() which will be used in the later commit. This is a pure restructure and does not have any functional change. Signed-off-by:
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Wei Wang authored
A new field is added to the request sock to record the TOS value received on the listening socket during 3WHS: When not under syn flood, it is recording the TOS value sent in SYN. When under syn flood, it is recording the TOS value sent in the ACK. This is a preparation patch in order to do TOS reflection in the later commit. Signed-off-by:
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Lorenzo Bianconi authored
Remove mvneta_stats from mvneta_swbm_rx_frame signature since now stats are accounted in mvneta_run_xdp routine Signed-off-by:
Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by:
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