Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v5.6.17 2020-01-25T09:43:19+00:00 2020-01-25T09:43:19+00:00 Haiyang Zhang haiyangz@microsoft.com 2020-01-23T21:52:34+00:00 urn:sha1:351e1581395fcc7fb952bbd7dda01238f69968fd This patch adds support of XDP in native mode for hv_netvsc driver, and transparently sets the XDP program on the associated VF NIC as well. Setting / unsetting XDP program on synthetic NIC (netvsc) propagates to VF NIC automatically. Setting / unsetting XDP program on VF NIC directly is not recommended, also not propagated to synthetic NIC, and may be overwritten by setting of synthetic NIC. The Azure/Hyper-V synthetic NIC receive buffer doesn't provide headroom for XDP. We thought about re-use the RNDIS header space, but it's too small. So we decided to copy the packets to a page buffer for XDP. And, most of our VMs on Azure have Accelerated Network (SRIOV) enabled, so most of the packets run on VF NIC. The synthetic NIC is considered as a fallback data-path. So the data copy on netvsc won't impact performance significantly. XDP program cannot run with LRO (RSC) enabled, so you need to disable LRO before running XDP: ethtool -K eth0 lro off XDP actions not yet supported: XDP_REDIRECT Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2019-12-21T05:50:38+00:00 Haiyang Zhang haiyangz@microsoft.com 2019-12-20T02:28:10+00:00 urn:sha1:b0689faa8efc5a3391402d7ae93bd373b7248e51 In existing code, the receive indirection table, rx_table, is in struct rndis_device, which will be reset when changing MTU, ringparam, etc. User configured receive indirection table values will be lost. To fix this, move rx_table to struct net_device_context, and check netif_is_rxfh_configured(), so rx_table will be set to default only if no user configured value. Fixes: ff4a44199012 ("netvsc: allow get/set of RSS indirection table") Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2019-11-30T22:50:51+00:00 Linus Torvalds torvalds@linux-foundation.org 2019-11-30T22:50:51+00:00 urn:sha1:0dd0c8f7db036b9aa61b70fa9fac423493cd5d17 Pull Hyper-V updates from Sasha Levin: - support for new VMBus protocols (Andrea Parri) - hibernation support (Dexuan Cui) - latency testing framework (Branden Bonaby) - decoupling Hyper-V page size from guest page size (Himadri Pandya) * tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (22 commits) Drivers: hv: vmbus: Fix crash handler reset of Hyper-V synic drivers/hv: Replace binary semaphore with mutex drivers: iommu: hyperv: Make HYPERV_IOMMU only available on x86 HID: hyperv: Add the support of hibernation hv_balloon: Add the support of hibernation x86/hyperv: Implement hv_is_hibernation_supported() Drivers: hv: balloon: Remove dependencies on guest page size Drivers: hv: vmbus: Remove dependencies on guest page size x86: hv: Add function to allocate zeroed page for Hyper-V Drivers: hv: util: Specify ring buffer size using Hyper-V page size Drivers: hv: Specify receive buffer size using Hyper-V page size tools: hv: add vmbus testing tool drivers: hv: vmbus: Introduce latency testing video: hyperv: hyperv_fb: Support deferred IO for Hyper-V frame buffer driver video: hyperv: hyperv_fb: Obtain screen resolution from Hyper-V host hv_netvsc: Add the support of hibernation hv_sock: Add the support of hibernation video: hyperv_fb: Add the support of hibernation scsi: storvsc: Add the support of hibernation Drivers: hv: vmbus: Add module parameter to cap the VMBus version ... 2019-11-24T02:42:41+00:00 Stephen Hemminger sthemmin@microsoft.com 2019-11-23T23:50:17+00:00 urn:sha1:6f3aeb1ba05d41320e6cf9a60f698d9c4e44348e The recording of RSS hash should be controlled by NETIF_F_RXHASH. Fixes: 1fac7ca4e63b ("hv_netvsc: record hardware hash in skb") Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> 2019-11-23T00:27:24+00:00 Jakub Kicinski jakub.kicinski@netronome.com 2019-11-23T00:27:24+00:00 urn:sha1:a9f852e92e40992c4ff09ac3940f7725e016317a Minor conflict in drivers/s390/net/qeth_l2_main.c, kept the lock from commit c8183f548902 ("s390/qeth: fix potential deadlock on workqueue flush"), removed the code which was removed by commit 9897d583b015 ("s390/qeth: consolidate some duplicated HW cmd code"). Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> 2019-11-22T03:32:23+00:00 Haiyang Zhang haiyangz@microsoft.com 2019-11-21T21:33:40+00:00 urn:sha1:71f21959dd5516031db4f011e15e9a9508b93a7d To reach the data region, the existing code adds offset in struct nvsp_5_send_indirect_table on the beginning of this struct. But the offset should be based on the beginning of its container, struct nvsp_message. This bug causes the first table entry missing, and adds an extra zero from the zero pad after the data region. This can put extra burden on the channel 0. So, correct the offset usage. Also add a boundary check to ensure not reading beyond data region. Fixes: 5b54dac856cb ("hyperv: Add support for virtual Receive Side Scaling (vRSS)") Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2019-11-22T01:10:44+00:00 Dexuan Cui decui@microsoft.com 2019-09-25T22:04:04+00:00 urn:sha1:0efeea5fb15357f0a582c89c02ef0b6ef58defb5 The existing netvsc_detach() and netvsc_attach() APIs make it easy to implement the suspend/resume callbacks. Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Sasha Levin <sashal@kernel.org> 2019-11-05T22:01:35+00:00 Stephen Hemminger sthemmin@microsoft.com 2019-11-01T23:42:38+00:00 urn:sha1:1fac7ca4e63bf935780cc632ccb6ba8de5f22321 Since RSS hash is available from the host, record it in the skb. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2019-09-07T15:42:52+00:00 Haiyang Zhang haiyangz@microsoft.com 2019-09-05T23:23:07+00:00 urn:sha1:b441f79532ec13dc82d05c55badc4da1f62a6141 In a previous patch, the NETIF_F_SG was missing after the code changes. That caused the SG feature to be "fixed". This patch includes it into hw_features, so it is tunable again. Fixes: 23312a3be999 ("netvsc: negotiate checksum and segmentation parameters") Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2019-05-30T18:29:52+00:00 Thomas Gleixner tglx@linutronix.de 2019-05-28T17:10:04+00:00 urn:sha1:9952f6918daa4ab5fc81307a9f90e31a4df3b200 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 228 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528171438.107155473@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>