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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-15 15:04:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-15 15:04:25 -0700
commit9a76aba02a37718242d7cdc294f0a3901928aa57 (patch)
tree2040d038f85d2120f21af83b0793efd5af1864e3
parent0a957467c5fd46142bc9c52758ffc552d4c5e2f7 (diff)
parent26a1ccc6c117be8e33e0410fce8c5298b0015b99 (diff)
download96b-common-9a76aba02a37718242d7cdc294f0a3901928aa57.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Highlights: - Gustavo A. R. Silva keeps working on the implicit switch fallthru changes. - Support 802.11ax High-Efficiency wireless in cfg80211 et al, From Luca Coelho. - Re-enable ASPM in r8169, from Kai-Heng Feng. - Add virtual XFRM interfaces, which avoids all of the limitations of existing IPSEC tunnels. From Steffen Klassert. - Convert GRO over to use a hash table, so that when we have many flows active we don't traverse a long list during accumluation. - Many new self tests for routing, TC, tunnels, etc. Too many contributors to mention them all, but I'm really happy to keep seeing this stuff. - Hardware timestamping support for dpaa_eth/fsl-fman from Yangbo Lu. - Lots of cleanups and fixes in L2TP code from Guillaume Nault. - Add IPSEC offload support to netdevsim, from Shannon Nelson. - Add support for slotting with non-uniform distribution to netem packet scheduler, from Yousuk Seung. - Add UDP GSO support to mlx5e, from Boris Pismenny. - Support offloading of Team LAG in NFP, from John Hurley. - Allow to configure TX queue selection based upon RX queue, from Amritha Nambiar. - Support ethtool ring size configuration in aquantia, from Anton Mikaev. - Support DSCP and flowlabel per-transport in SCTP, from Xin Long. - Support list based batching and stack traversal of SKBs, this is very exciting work. From Edward Cree. - Busyloop optimizations in vhost_net, from Toshiaki Makita. - Introduce the ETF qdisc, which allows time based transmissions. IGB can offload this in hardware. From Vinicius Costa Gomes. - Add parameter support to devlink, from Moshe Shemesh. - Several multiplication and division optimizations for BPF JIT in nfp driver, from Jiong Wang. - Lots of prepatory work to make more of the packet scheduler layer lockless, when possible, from Vlad Buslov. - Add ACK filter and NAT awareness to sch_cake packet scheduler, from Toke Høiland-Jørgensen. - Support regions and region snapshots in devlink, from Alex Vesker. - Allow to attach XDP programs to both HW and SW at the same time on a given device, with initial support in nfp. From Jakub Kicinski. - Add TLS RX offload and support in mlx5, from Ilya Lesokhin. - Use PHYLIB in r8169 driver, from Heiner Kallweit. - All sorts of changes to support Spectrum 2 in mlxsw driver, from Ido Schimmel. - PTP support in mv88e6xxx DSA driver, from Andrew Lunn. - Make TCP_USER_TIMEOUT socket option more accurate, from Jon Maxwell. - Support for templates in packet scheduler classifier, from Jiri Pirko. - IPV6 support in RDS, from Ka-Cheong Poon. - Native tproxy support in nf_tables, from Máté Eckl. - Maintain IP fragment queue in an rbtree, but optimize properly for in-order frags. From Peter Oskolkov. - Improvde handling of ACKs on hole repairs, from Yuchung Cheng" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1996 commits) bpf: test: fix spelling mistake "REUSEEPORT" -> "REUSEPORT" hv/netvsc: Fix NULL dereference at single queue mode fallback net: filter: mark expected switch fall-through xen-netfront: fix warn message as irq device name has '/' cxgb4: Add new T5 PCI device ids 0x50af and 0x50b0 net: dsa: mv88e6xxx: missing unlock on error path rds: fix building with IPV6=m inet/connection_sock: prefer _THIS_IP_ to current_text_addr net: dsa: mv88e6xxx: bitwise vs logical bug net: sock_diag: Fix spectre v1 gadget in __sock_diag_cmd() ieee802154: hwsim: using right kind of iteration net: hns3: Add vlan filter setting by ethtool command -K net: hns3: Set tx ring' tc info when netdev is up net: hns3: Remove tx ring BD len register in hns3_enet net: hns3: Fix desc num set to default when setting channel net: hns3: Fix for phy link issue when using marvell phy driver net: hns3: Fix for information of phydev lost problem when down/up net: hns3: Fix for command format parsing error in hclge_is_all_function_id_zero net: hns3: Add support for serdes loopback selftest bnxt_en: take coredump_record structure off stack ...
-rw-r--r--Documentation/ABI/stable/sysfs-class-rfkill6
-rw-r--r--Documentation/ABI/testing/sysfs-class-net-queues11
-rw-r--r--Documentation/bpf/bpf_devel_QA.rst21
-rw-r--r--Documentation/bpf/index.rst (renamed from Documentation/bpf/README.rst)10
-rw-r--r--Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt7
-rw-r--r--Documentation/devicetree/bindings/net/can/xilinx_can.txt35
-rw-r--r--Documentation/devicetree/bindings/net/dsa/b53.txt8
-rw-r--r--Documentation/devicetree/bindings/net/dsa/realtek-smi.txt153
-rw-r--r--Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt81
-rw-r--r--Documentation/devicetree/bindings/net/fsl-fman.txt25
-rw-r--r--Documentation/devicetree/bindings/net/mediatek-bluetooth.txt35
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-rw-r--r--Documentation/devicetree/bindings/net/rockchip-dwmac.txt1
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-rw-r--r--Documentation/devicetree/bindings/ptp/ptp-qoriq.txt15
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-rw-r--r--Documentation/networking/bridge.rst (renamed from Documentation/networking/bridge.txt)6
-rw-r--r--Documentation/networking/can_ucan_protocol.rst332
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-rw-r--r--Documentation/process/stable-kernel-rules.rst2
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-rw-r--r--MAINTAINERS20
-rw-r--r--arch/alpha/include/uapi/asm/socket.h3
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-rw-r--r--arch/arm/net/bpf_jit_32.c1062
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-rw-r--r--arch/arm64/boot/dts/broadcom/northstar2/ns2.dtsi4
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-rw-r--r--arch/arm64/boot/dts/freescale/qoriq-fman3-0.dtsi15
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-rw-r--r--drivers/bluetooth/bpa10x.c6
-rw-r--r--drivers/bluetooth/btmrvl_sdio.c2
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-rw-r--r--drivers/bluetooth/hci_h5.c206
-rw-r--r--drivers/bluetooth/hci_intel.c2
-rw-r--r--drivers/bluetooth/hci_qca.c490
-rw-r--r--drivers/connector/connector.c3
-rw-r--r--drivers/crypto/chelsio/chtls/chtls_cm.c2
-rw-r--r--drivers/crypto/virtio/virtio_crypto_core.c4
-rw-r--r--drivers/hwmon/hwmon.c4
-rw-r--r--drivers/infiniband/hw/hfi1/vnic_main.c2
-rw-r--r--drivers/infiniband/hw/mlx5/Kconfig2
-rw-r--r--drivers/infiniband/hw/mlx5/cmd.c15
-rw-r--r--drivers/infiniband/hw/mlx5/cmd.h1
-rw-r--r--drivers/infiniband/ulp/opa_vnic/opa_vnic_netdev.c4
-rw-r--r--drivers/isdn/capi/capi.c5
-rw-r--r--drivers/isdn/capi/capidrv.c3
-rw-r--r--drivers/isdn/gigaset/bas-gigaset.c29
-rw-r--r--drivers/isdn/hardware/mISDN/avmfritz.c1
-rw-r--r--drivers/isdn/hardware/mISDN/hfcpci.c3
-rw-r--r--drivers/isdn/hardware/mISDN/hfcsusb.c36
-rw-r--r--drivers/isdn/hardware/mISDN/mISDNinfineon.c1
-rw-r--r--drivers/isdn/hardware/mISDN/mISDNisar.c4
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-rw-r--r--drivers/isdn/hisax/avm_pci.c1
-rw-r--r--drivers/isdn/hisax/callc.c3
-rw-r--r--drivers/isdn/hisax/config.c9
-rw-r--r--drivers/isdn/hisax/gazel.c4
-rw-r--r--drivers/isdn/hisax/hfc_usb.c10
-rw-r--r--drivers/isdn/hisax/isar.c2
-rw-r--r--drivers/isdn/hisax/l3_1tr6.c1
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-rw-r--r--drivers/isdn/hysdn/hysdn_boot.c2
-rw-r--r--drivers/isdn/i4l/isdn_tty.c4
-rw-r--r--drivers/isdn/i4l/isdn_v110.c9
-rw-r--r--drivers/isdn/mISDN/stack.c1
-rw-r--r--drivers/media/rc/bpf-lirc.c10
-rw-r--r--drivers/net/bonding/bond_main.c3
-rw-r--r--drivers/net/bonding/bond_sysfs.c7
-rw-r--r--drivers/net/can/cc770/cc770.c2
-rw-r--r--drivers/net/can/dev.c14
-rw-r--r--drivers/net/can/flexcan.c33
-rw-r--r--drivers/net/can/janz-ican3.c2
-rw-r--r--drivers/net/can/peak_canfd/peak_canfd.c2
-rw-r--r--drivers/net/can/peak_canfd/peak_pciefd_main.c20
-rw-r--r--drivers/net/can/sja1000/peak_pci.c2
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-rw-r--r--drivers/net/can/sun4i_can.c2
-rw-r--r--drivers/net/can/usb/Kconfig48
-rw-r--r--drivers/net/can/usb/Makefile7
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-rw-r--r--drivers/net/ethernet/8390/axnet_cs.c1
-rw-r--r--drivers/net/ethernet/Kconfig2
-rw-r--r--drivers/net/ethernet/Makefile9
-rw-r--r--drivers/net/ethernet/adaptec/starfire.c2
-rw-r--r--drivers/net/ethernet/alteon/acenic.c6
-rw-r--r--drivers/net/ethernet/amazon/ena/ena_netdev.c5
-rw-r--r--drivers/net/ethernet/amd/pcnet32.c8
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-desc.c7
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c117
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/aq_hw.h20
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/aq_nic.c12
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c47
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0_internal.h8
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c51
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h8
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c52
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h35
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c69
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/ver.h4
-rw-r--r--drivers/net/ethernet/atheros/alx/main.c2
-rw-r--r--drivers/net/ethernet/aurora/Kconfig1
-rw-r--r--drivers/net/ethernet/aurora/nb8800.c2
-rw-r--r--drivers/net/ethernet/broadcom/Kconfig12
-rw-r--r--drivers/net/ethernet/broadcom/bcmsysport.c223
-rw-r--r--drivers/net/ethernet/broadcom/bcmsysport.h11
-rw-r--r--drivers/net/ethernet/broadcom/bgmac.c2
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c6
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h3
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c3
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c4
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c4
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c1
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt.c233
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt.h33
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h66
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c89
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.h10
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c121
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h15
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c375
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h37
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h1214
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c33
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c16
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c4
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-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c1
-rw-r--r--drivers/net/ethernet/broadcom/cnic.c11
-rw-r--r--drivers/net/ethernet/broadcom/tg3.c14
-rw-r--r--drivers/net/ethernet/cadence/Kconfig6
-rw-r--r--drivers/net/ethernet/cadence/macb_main.c88
-rw-r--r--drivers/net/ethernet/cadence/macb_ptp.c1
-rw-r--r--drivers/net/ethernet/cavium/Kconfig6
-rw-r--r--drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c47
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-rw-r--r--drivers/net/ethernet/cavium/liquidio/lio_ethtool.c35
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-rw-r--r--drivers/net/ethernet/cavium/liquidio/octeon_console.c2
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-rw-r--r--drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c1
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-rw-r--r--drivers/net/ethernet/chelsio/cxgb/cxgb2.c4
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-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4.h33
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c6
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c2
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c708
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c186
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c163
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c8
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/l2t.c1
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/sched.c3
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/sge.c376
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_hw.c54
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h3
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_regs.h29
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h12
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h12
-rw-r--r--drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.c4
-rw-r--r--drivers/net/ethernet/cisco/enic/vnic_dev.c2
-rw-r--r--drivers/net/ethernet/cisco/enic/vnic_rq.c2
-rw-r--r--drivers/net/ethernet/cisco/enic/vnic_wq.c2
-rw-r--r--drivers/net/ethernet/cortina/gemini.c135
-rw-r--r--drivers/net/ethernet/dec/tulip/de4x5.c6
-rw-r--r--drivers/net/ethernet/dec/tulip/tulip_core.c1
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1752 files changed, 119175 insertions, 29072 deletions
diff --git a/Documentation/ABI/stable/sysfs-class-rfkill b/Documentation/ABI/stable/sysfs-class-rfkill
index e1ba4a104753..80151a409d67 100644
--- a/Documentation/ABI/stable/sysfs-class-rfkill
+++ b/Documentation/ABI/stable/sysfs-class-rfkill
@@ -11,7 +11,7 @@ KernelVersion: v2.6.22
Contact: linux-wireless@vger.kernel.org,
Description: The rfkill class subsystem folder.
Each registered rfkill driver is represented by an rfkillX
- subfolder (X being an integer > 0).
+ subfolder (X being an integer >= 0).
What: /sys/class/rfkill/rfkill[0-9]+/name
@@ -48,8 +48,8 @@ Contact: linux-wireless@vger.kernel.org
Description: Current state of the transmitter.
This file was scheduled to be removed in 2014, but due to its
large number of users it will be sticking around for a bit
- longer. Despite it being marked as stabe, the newer "hard" and
- "soft" interfaces should be preffered, since it is not possible
+ longer. Despite it being marked as stable, the newer "hard" and
+ "soft" interfaces should be preferred, since it is not possible
to express the 'soft and hard block' state of the rfkill driver
through this interface. There will likely be another attempt to
remove it in the future.
diff --git a/Documentation/ABI/testing/sysfs-class-net-queues b/Documentation/ABI/testing/sysfs-class-net-queues
index 0c0df91b1516..978b76358661 100644
--- a/Documentation/ABI/testing/sysfs-class-net-queues
+++ b/Documentation/ABI/testing/sysfs-class-net-queues
@@ -42,6 +42,17 @@ Description:
network device transmit queue. Possible vaules depend on the
number of available CPU(s) in the system.
+What: /sys/class/<iface>/queues/tx-<queue>/xps_rxqs
+Date: June 2018
+KernelVersion: 4.18.0
+Contact: netdev@vger.kernel.org
+Description:
+ Mask of the receive queue(s) currently enabled to participate
+ into the Transmit Packet Steering packet processing flow for this
+ network device transmit queue. Possible values depend on the
+ number of available receive queue(s) in the network device.
+ Default is disabled.
+
What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/hold_time
Date: November 2011
KernelVersion: 3.3
diff --git a/Documentation/bpf/bpf_devel_QA.rst b/Documentation/bpf/bpf_devel_QA.rst
index 0e7c1d946e83..c9856b927055 100644
--- a/Documentation/bpf/bpf_devel_QA.rst
+++ b/Documentation/bpf/bpf_devel_QA.rst
@@ -106,9 +106,9 @@ into the bpf-next tree will make their way into net-next tree. net and
net-next are both run by David S. Miller. From there, they will go
into the kernel mainline tree run by Linus Torvalds. To read up on the
process of net and net-next being merged into the mainline tree, see
-the `netdev FAQ`_ under:
+the :ref:`netdev-FAQ`
+
- `Documentation/networking/netdev-FAQ.txt`_
Occasionally, to prevent merge conflicts, we might send pull requests
to other trees (e.g. tracing) with a small subset of the patches, but
@@ -125,8 +125,8 @@ request)::
Q: How do I indicate which tree (bpf vs. bpf-next) my patch should be applied to?
---------------------------------------------------------------------------------
-A: The process is the very same as described in the `netdev FAQ`_, so
-please read up on it. The subject line must indicate whether the
+A: The process is the very same as described in the :ref:`netdev-FAQ`,
+so please read up on it. The subject line must indicate whether the
patch is a fix or rather "next-like" content in order to let the
maintainers know whether it is targeted at bpf or bpf-next.
@@ -184,7 +184,7 @@ ii) run extensive BPF test suite and
Once the BPF pull request was accepted by David S. Miller, then
the patches end up in net or net-next tree, respectively, and
make their way from there further into mainline. Again, see the
-`netdev FAQ`_ for additional information e.g. on how often they are
+:ref:`netdev-FAQ` for additional information e.g. on how often they are
merged to mainline.
Q: How long do I need to wait for feedback on my BPF patches?
@@ -208,7 +208,7 @@ Q: Are patches applied to bpf-next when the merge window is open?
-----------------------------------------------------------------
A: For the time when the merge window is open, bpf-next will not be
processed. This is roughly analogous to net-next patch processing,
-so feel free to read up on the `netdev FAQ`_ about further details.
+so feel free to read up on the :ref:`netdev-FAQ` about further details.
During those two weeks of merge window, we might ask you to resend
your patch series once bpf-next is open again. Once Linus released
@@ -372,7 +372,7 @@ netdev kernel mailing list in Cc and ask for the fix to be queued up:
netdev@vger.kernel.org
The process in general is the same as on netdev itself, see also the
-`netdev FAQ`_ document.
+:ref:`netdev-FAQ`.
Q: Do you also backport to kernels not currently maintained as stable?
----------------------------------------------------------------------
@@ -388,9 +388,7 @@ Q: The BPF patch I am about to submit needs to go to stable as well
What should I do?
A: The same rules apply as with netdev patch submissions in general, see
-`netdev FAQ`_ under:
-
- `Documentation/networking/netdev-FAQ.txt`_
+the :ref:`netdev-FAQ`.
Never add "``Cc: stable@vger.kernel.org``" to the patch description, but
ask the BPF maintainers to queue the patches instead. This can be done
@@ -630,8 +628,7 @@ when:
.. Links
.. _Documentation/process/: https://www.kernel.org/doc/html/latest/process/
.. _MAINTAINERS: ../../MAINTAINERS
-.. _Documentation/networking/netdev-FAQ.txt: ../networking/netdev-FAQ.txt
-.. _netdev FAQ: ../networking/netdev-FAQ.txt
+.. _netdev-FAQ: ../networking/netdev-FAQ.rst
.. _samples/bpf/: ../../samples/bpf/
.. _selftests: ../../tools/testing/selftests/bpf/
.. _Documentation/dev-tools/kselftest.rst:
diff --git a/Documentation/bpf/README.rst b/Documentation/bpf/index.rst
index b9a80c9e9392..00a8450a602f 100644
--- a/Documentation/bpf/README.rst
+++ b/Documentation/bpf/index.rst
@@ -1,5 +1,5 @@
=================
-BPF documentation
+BPF Documentation
=================
This directory contains documentation for the BPF (Berkeley Packet
@@ -22,14 +22,14 @@ Frequently asked questions (FAQ)
Two sets of Questions and Answers (Q&A) are maintained.
-* QA for common questions about BPF see: bpf_design_QA_
+.. toctree::
+ :maxdepth: 1
-* QA for developers interacting with BPF subsystem: bpf_devel_QA_
+ bpf_design_QA
+ bpf_devel_QA
.. Links:
-.. _bpf_design_QA: bpf_design_QA.rst
-.. _bpf_devel_QA: bpf_devel_QA.rst
.. _Documentation/networking/filter.txt: ../networking/filter.txt
.. _man-pages: https://www.kernel.org/doc/man-pages/
.. _bpf(2): http://man7.org/linux/man-pages/man2/bpf.2.html
diff --git a/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt b/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt
index dfe287a5d6f2..b58843f29591 100644
--- a/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt
+++ b/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt
@@ -13,14 +13,17 @@ MDIO multiplexer node:
Every non-ethernet PHY requires a compatible so that it could be probed based
on this compatible string.
+Optional properties:
+- clocks: phandle of the core clock which drives the mdio block.
+
Additional information regarding generic multiplexer properties can be found
at- Documentation/devicetree/bindings/net/mdio-mux.txt
for example:
- mdio_mux_iproc: mdio-mux@6602023c {
+ mdio_mux_iproc: mdio-mux@66020000 {
compatible = "brcm,mdio-mux-iproc";
- reg = <0x6602023c 0x14>;
+ reg = <0x66020000 0x250>;
#address-cells = <1>;
#size-cells = <0>;
diff --git a/Documentation/devicetree/bindings/net/can/xilinx_can.txt b/Documentation/devicetree/bindings/net/can/xilinx_can.txt
index 9264d2f6a89d..060e2d46bad9 100644
--- a/Documentation/devicetree/bindings/net/can/xilinx_can.txt
+++ b/Documentation/devicetree/bindings/net/can/xilinx_can.txt
@@ -2,19 +2,25 @@ Xilinx Axi CAN/Zynq CANPS controller Device Tree Bindings
---------------------------------------------------------
Required properties:
-- compatible : Should be "xlnx,zynq-can-1.0" for Zynq CAN
- controllers and "xlnx,axi-can-1.00.a" for Axi CAN
- controllers.
-- reg : Physical base address and size of the Axi CAN/Zynq
- CANPS registers map.
+- compatible : Should be:
+ - "xlnx,zynq-can-1.0" for Zynq CAN controllers
+ - "xlnx,axi-can-1.00.a" for Axi CAN controllers
+ - "xlnx,canfd-1.0" for CAN FD controllers
+- reg : Physical base address and size of the controller
+ registers map.
- interrupts : Property with a value describing the interrupt
number.
-- clock-names : List of input clock names - "can_clk", "pclk"
- (For CANPS), "can_clk" , "s_axi_aclk"(For AXI CAN)
+- clock-names : List of input clock names
+ - "can_clk", "pclk" (For CANPS),
+ - "can_clk", "s_axi_aclk" (For AXI CAN and CAN FD).
(See clock bindings for details).
- clocks : Clock phandles (see clock bindings for details).
-- tx-fifo-depth : Can Tx fifo depth.
-- rx-fifo-depth : Can Rx fifo depth.
+- tx-fifo-depth : Can Tx fifo depth (Zynq, Axi CAN).
+- rx-fifo-depth : Can Rx fifo depth (Zynq, Axi CAN, CAN FD in
+ sequential Rx mode).
+- tx-mailbox-count : Can Tx mailbox buffer count (CAN FD).
+- rx-mailbox-count : Can Rx mailbox buffer count (CAN FD in mailbox Rx
+ mode).
Example:
@@ -41,3 +47,14 @@ For Axi CAN Dts file:
tx-fifo-depth = <0x40>;
rx-fifo-depth = <0x40>;
};
+For CAN FD Dts file:
+ canfd_0: canfd@40000000 {
+ compatible = "xlnx,canfd-1.0";
+ clocks = <&clkc 0>, <&clkc 1>;
+ clock-names = "can_clk", "s_axi_aclk";
+ reg = <0x40000000 0x2000>;
+ interrupt-parent = <&intc>;
+ interrupts = <0 59 1>;
+ tx-mailbox-count = <0x20>;
+ rx-fifo-depth = <0x20>;
+ };
diff --git a/Documentation/devicetree/bindings/net/dsa/b53.txt b/Documentation/devicetree/bindings/net/dsa/b53.txt
index 47a6a7fe0b86..1811e1972a7a 100644
--- a/Documentation/devicetree/bindings/net/dsa/b53.txt
+++ b/Documentation/devicetree/bindings/net/dsa/b53.txt
@@ -24,6 +24,14 @@ Required properties:
"brcm,bcm53018-srab"
"brcm,bcm53019-srab" and the mandatory "brcm,bcm5301x-srab" string
+ For the BCM5831X/BCM1140x SoCs with an integrated switch, must be one of:
+ "brcm,bcm11404-srab"
+ "brcm,bcm11407-srab"
+ "brcm,bcm11409-srab"
+ "brcm,bcm58310-srab"
+ "brcm,bcm58311-srab"
+ "brcm,bcm58313-srab" and the mandatory "brcm,omega-srab" string
+
For the BCM585xx/586XX/88312 SoCs with an integrated switch, must be one of:
"brcm,bcm58522-srab"
"brcm,bcm58523-srab"
diff --git a/Documentation/devicetree/bindings/net/dsa/realtek-smi.txt b/Documentation/devicetree/bindings/net/dsa/realtek-smi.txt
new file mode 100644
index 000000000000..b6ae8541bd55
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/realtek-smi.txt
@@ -0,0 +1,153 @@
+Realtek SMI-based Switches
+==========================
+
+The SMI "Simple Management Interface" is a two-wire protocol using
+bit-banged GPIO that while it reuses the MDIO lines MCK and MDIO does
+not use the MDIO protocol. This binding defines how to specify the
+SMI-based Realtek devices.
+
+Required properties:
+
+- compatible: must be exactly one of:
+ "realtek,rtl8366"
+ "realtek,rtl8366rb" (4+1 ports)
+ "realtek,rtl8366s" (4+1 ports)
+ "realtek,rtl8367"
+ "realtek,rtl8367b"
+ "realtek,rtl8368s" (8 port)
+ "realtek,rtl8369"
+ "realtek,rtl8370" (8 port)
+
+Required properties:
+- mdc-gpios: GPIO line for the MDC clock line.
+- mdio-gpios: GPIO line for the MDIO data line.
+- reset-gpios: GPIO line for the reset signal.
+
+Optional properties:
+- realtek,disable-leds: if the LED drivers are not used in the
+ hardware design this will disable them so they are not turned on
+ and wasting power.
+
+Required subnodes:
+
+- interrupt-controller
+
+ This defines an interrupt controller with an IRQ line (typically
+ a GPIO) that will demultiplex and handle the interrupt from the single
+ interrupt line coming out of one of the SMI-based chips. It most
+ importantly provides link up/down interrupts to the PHY blocks inside
+ the ASIC.
+
+Required properties of interrupt-controller:
+
+- interrupt: parent interrupt, see interrupt-controller/interrupts.txt
+- interrupt-controller: see interrupt-controller/interrupts.txt
+- #address-cells: should be <0>
+- #interrupt-cells: should be <1>
+
+- mdio
+
+ This defines the internal MDIO bus of the SMI device, mostly for the
+ purpose of being able to hook the interrupts to the right PHY and
+ the right PHY to the corresponding port.
+
+Required properties of mdio:
+
+- compatible: should be set to "realtek,smi-mdio" for all SMI devices
+
+See net/mdio.txt for additional MDIO bus properties.
+
+See net/dsa/dsa.txt for a list of additional required and optional properties
+and subnodes of DSA switches.
+
+Examples:
+
+switch {
+ compatible = "realtek,rtl8366rb";
+ /* 22 = MDIO (has input reads), 21 = MDC (clock, output only) */
+ mdc-gpios = <&gpio0 21 GPIO_ACTIVE_HIGH>;
+ mdio-gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio0 14 GPIO_ACTIVE_LOW>;
+
+ switch_intc: interrupt-controller {
+ /* GPIO 15 provides the interrupt */
+ interrupt-parent = <&gpio0>;
+ interrupts = <15 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ port@0 {
+ reg = <0>;
+ label = "lan0";
+ phy-handle = <&phy0>;
+ };
+ port@1 {
+ reg = <1>;
+ label = "lan1";
+ phy-handle = <&phy1>;
+ };
+ port@2 {
+ reg = <2>;
+ label = "lan2";
+ phy-handle = <&phy2>;
+ };
+ port@3 {
+ reg = <3>;
+ label = "lan3";
+ phy-handle = <&phy3>;
+ };
+ port@4 {
+ reg = <4>;
+ label = "wan";
+ phy-handle = <&phy4>;
+ };
+ port@5 {
+ reg = <5>;
+ label = "cpu";
+ ethernet = <&gmac0>;
+ phy-mode = "rgmii";
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+ };
+
+ mdio {
+ compatible = "realtek,smi-mdio", "dsa-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy0: phy@0 {
+ reg = <0>;
+ interrupt-parent = <&switch_intc>;
+ interrupts = <0>;
+ };
+ phy1: phy@1 {
+ reg = <1>;
+ interrupt-parent = <&switch_intc>;
+ interrupts = <1>;
+ };
+ phy2: phy@2 {
+ reg = <2>;
+ interrupt-parent = <&switch_intc>;
+ interrupts = <2>;
+ };
+ phy3: phy@3 {
+ reg = <3>;
+ interrupt-parent = <&switch_intc>;
+ interrupts = <3>;
+ };
+ phy4: phy@4 {
+ reg = <4>;
+ interrupt-parent = <&switch_intc>;
+ interrupts = <12>;
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt b/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
new file mode 100644
index 000000000000..ed4710c40641
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
@@ -0,0 +1,81 @@
+Vitesse VSC73xx Switches
+========================
+
+This defines device tree bindings for the Vitesse VSC73xx switch chips.
+The Vitesse company has been acquired by Microsemi and Microsemi in turn
+acquired by Microchip but retains this vendor branding.
+
+The currently supported switch chips are:
+Vitesse VSC7385 SparX-G5 5+1-port Integrated Gigabit Ethernet Switch
+Vitesse VSC7388 SparX-G8 8-port Integrated Gigabit Ethernet Switch
+Vitesse VSC7395 SparX-G5e 5+1-port Integrated Gigabit Ethernet Switch
+Vitesse VSC7398 SparX-G8e 8-port Integrated Gigabit Ethernet Switch
+
+The device tree node is an SPI device so it must reside inside a SPI bus
+device tree node, see spi/spi-bus.txt
+
+Required properties:
+
+- compatible: must be exactly one of:
+ "vitesse,vsc7385"
+ "vitesse,vsc7388"
+ "vitesse,vsc7395"
+ "vitesse,vsc7398"
+- gpio-controller: indicates that this switch is also a GPIO controller,
+ see gpio/gpio.txt
+- #gpio-cells: this must be set to <2> and indicates that we are a twocell
+ GPIO controller, see gpio/gpio.txt
+
+Optional properties:
+
+- reset-gpios: a handle to a GPIO line that can issue reset of the chip.
+ It should be tagged as active low.
+
+Required subnodes:
+
+See net/dsa/dsa.txt for a list of additional required and optional properties
+and subnodes of DSA switches.
+
+Examples:
+
+switch@0 {
+ compatible = "vitesse,vsc7395";
+ reg = <0>;
+ /* Specified for 2.5 MHz or below */
+ spi-max-frequency = <2500000>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+ port@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+ port@2 {
+ reg = <2>;
+ label = "lan3";
+ };
+ port@3 {
+ reg = <3>;
+ label = "lan4";
+ };
+ vsc: port@6 {
+ reg = <6>;
+ label = "cpu";
+ ethernet = <&gmac1>;
+ phy-mode = "rgmii";
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/net/fsl-fman.txt b/Documentation/devicetree/bindings/net/fsl-fman.txt
index f8c33890bc29..299c0dcd67db 100644
--- a/Documentation/devicetree/bindings/net/fsl-fman.txt
+++ b/Documentation/devicetree/bindings/net/fsl-fman.txt
@@ -356,30 +356,7 @@ ethernet@e0000 {
============================================================================
FMan IEEE 1588 Node
-DESCRIPTION
-
-The FMan interface to support IEEE 1588
-
-
-PROPERTIES
-
-- compatible
- Usage: required
- Value type: <stringlist>
- Definition: A standard property.
- Must include "fsl,fman-ptp-timer".
-
-- reg
- Usage: required
- Value type: <prop-encoded-array>
- Definition: A standard property.
-
-EXAMPLE
-
-ptp-timer@fe000 {
- compatible = "fsl,fman-ptp-timer";
- reg = <0xfe000 0x1000>;
-};
+Refer to Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
=============================================================================
FMan MDIO Node
diff --git a/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt b/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt
new file mode 100644
index 000000000000..14ceb2a5b4e8
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt
@@ -0,0 +1,35 @@
+MediaTek SoC built-in Bluetooth Devices
+==================================
+
+This device is a serial attached device to BTIF device and thus it must be a
+child node of the serial node with BTIF. The dt-bindings details for BTIF
+device can be known via Documentation/devicetree/bindings/serial/8250.txt.
+
+Required properties:
+
+- compatible: Must be
+ "mediatek,mt7622-bluetooth": for MT7622 SoC
+- clocks: Should be the clock specifiers corresponding to the entry in
+ clock-names property.
+- clock-names: Should contain "ref" entries.
+- power-domains: Phandle to the power domain that the device is part of
+
+Example:
+
+ btif: serial@1100c000 {
+ compatible = "mediatek,mt7622-btif",
+ "mediatek,mtk-btif";
+ reg = <0 0x1100c000 0 0x1000>;
+ interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_BTIF_PD>;
+ clock-names = "main";
+ reg-shift = <2>;
+ reg-io-width = <4>;
+
+ bluetooth {
+ compatible = "mediatek,mt7622-bluetooth";
+ power-domains = <&scpsys MT7622_POWER_DOMAIN_WB>;
+ clocks = <&clk25m>;
+ clock-names = "ref";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
index 0ea18a53cc29..824c0e23c544 100644
--- a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
+++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
@@ -10,12 +10,25 @@ device the slave device is attached to.
Required properties:
- compatible: should contain one of the following:
* "qcom,qca6174-bt"
+ * "qcom,wcn3990-bt"
+
+Optional properties for compatible string qcom,qca6174-bt:
-Optional properties:
- enable-gpios: gpio specifier used to enable chip
- clocks: clock provided to the controller (SUSCLK_32KHZ)
-Example:
+Required properties for compatible string qcom,wcn3990-bt:
+
+ - vddio-supply: VDD_IO supply regulator handle.
+ - vddxo-supply: VDD_XO supply regulator handle.
+ - vddrf-supply: VDD_RF supply regulator handle.
+ - vddch0-supply: VDD_CH0 supply regulator handle.
+
+Optional properties for compatible string qcom,wcn3990-bt:
+
+ - max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
+
+Examples:
serial@7570000 {
label = "BT-UART";
@@ -28,3 +41,15 @@ serial@7570000 {
clocks = <&divclk4>;
};
};
+
+serial@898000 {
+ bluetooth {
+ compatible = "qcom,wcn3990-bt";
+
+ vddio-supply = <&vreg_s4a_1p8>;
+ vddxo-supply = <&vreg_l7a_1p8>;
+ vddrf-supply = <&vreg_l17a_1p3>;
+ vddch0-supply = <&vreg_l25a_3p3>;
+ max-speed = <3200000>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
index 9c16ee2965a2..3b71da7e8742 100644
--- a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
@@ -4,6 +4,7 @@ The device node has following properties.
Required properties:
- compatible: should be "rockchip,<name>-gamc"
+ "rockchip,px30-gmac": found on PX30 SoCs
"rockchip,rk3128-gmac": found on RK312x SoCs
"rockchip,rk3228-gmac": found on RK322x SoCs
"rockchip,rk3288-gmac": found on RK3288 SoCs
diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
index 8bdb1c231d08..cb694062afff 100644
--- a/Documentation/devicetree/bindings/net/stmmac.txt
+++ b/Documentation/devicetree/bindings/net/stmmac.txt
@@ -1,7 +1,8 @@
-* STMicroelectronics 10/100/1000 Ethernet driver (GMAC)
+* STMicroelectronics 10/100/1000/2500/10000 Ethernet (GMAC/XGMAC)
Required properties:
-- compatible: Should be "snps,dwmac-<ip_version>", "snps,dwmac"
+- compatible: Should be "snps,dwmac-<ip_version>", "snps,dwmac" or
+ "snps,dwxgmac-<ip_version>", "snps,dwxgmac".
For backwards compatibility: "st,spear600-gmac" is also supported.
- reg: Address and length of the register set for the device
- interrupts: Should contain the STMMAC interrupts
diff --git a/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt b/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
index 0f569d8e73a3..c5d0e7998e2b 100644
--- a/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
+++ b/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
@@ -2,7 +2,8 @@
General Properties:
- - compatible Should be "fsl,etsec-ptp"
+ - compatible Should be "fsl,etsec-ptp" for eTSEC
+ Should be "fsl,fman-ptp-timer" for DPAA FMan
- reg Offset and length of the register set for the device
- interrupts There should be at least two interrupts. Some devices
have as many as four PTP related interrupts.
@@ -43,14 +44,22 @@ Clock Properties:
value, which will be directly written in those bits, that is why,
according to reference manual, the next clock sources can be used:
+ For eTSEC,
<0> - external high precision timer reference clock (TSEC_TMR_CLK
input is used for this purpose);
<1> - eTSEC system clock;
<2> - eTSEC1 transmit clock;
<3> - RTC clock input.
- When this attribute is not used, eTSEC system clock will serve as
- IEEE 1588 timer reference clock.
+ For DPAA FMan,
+ <0> - external high precision timer reference clock (TMR_1588_CLK)
+ <1> - MAC system clock (1/2 FMan clock)
+ <2> - reserved
+ <3> - RTC clock oscillator
+
+ When this attribute is not used, the IEEE 1588 timer reference clock
+ will use the eTSEC system clock (for Gianfar) or the MAC system
+ clock (for DPAA).
Example:
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index c401d10335bc..41f0b97eb933 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -397,6 +397,7 @@ v3 V3 Semiconductor
variscite Variscite Ltd.
via VIA Technologies, Inc.
virtio Virtual I/O Device Specification, developed by the OASIS consortium
+vitesse Vitesse Semiconductor Corporation
vivante Vivante Corporation
vocore VoCore Studio
voipac Voipac Technologies s.r.o.
diff --git a/Documentation/index.rst b/Documentation/index.rst
index d43fcd25c1da..5db7e87c7cb1 100644
--- a/Documentation/index.rst
+++ b/Documentation/index.rst
@@ -92,6 +92,7 @@ needed).
crypto/index
filesystems/index
vm/index
+ bpf/index
Architecture-specific documentation
-----------------------------------
diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX
index 2b89d91b376f..02a323c43261 100644
--- a/Documentation/networking/00-INDEX
+++ b/Documentation/networking/00-INDEX
@@ -18,8 +18,6 @@ README.ipw2200
- README for the Intel PRO/Wireless 2915ABG and 2200BG driver.
README.sb1000
- info on General Instrument/NextLevel SURFboard1000 cable modem.
-alias.txt
- - info on using alias network devices.
altera_tse.txt
- Altera Triple-Speed Ethernet controller.
arcnet-hardware.txt
@@ -140,8 +138,6 @@ multiqueue.txt
- HOWTO for multiqueue network device support.
netconsole.txt
- The network console module netconsole.ko: configuration and notes.
-netdev-FAQ.txt
- - FAQ describing how to submit net changes to netdev mailing list.
netdev-features.txt
- Network interface features API description.
netdevices.txt
diff --git a/Documentation/networking/alias.rst b/Documentation/networking/alias.rst
new file mode 100644
index 000000000000..af7c5ee92014
--- /dev/null
+++ b/Documentation/networking/alias.rst
@@ -0,0 +1,49 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===========
+IP-Aliasing
+===========
+
+IP-aliases are an obsolete way to manage multiple IP-addresses/masks
+per interface. Newer tools such as iproute2 support multiple
+address/prefixes per interface, but aliases are still supported
+for backwards compatibility.
+
+An alias is formed by adding a colon and a string when running ifconfig.
+This string is usually numeric, but this is not a must.
+
+
+Alias creation
+==============
+
+Alias creation is done by 'magic' interface naming: eg. to create a
+200.1.1.1 alias for eth0 ...
+::
+
+ # ifconfig eth0:0 200.1.1.1 etc,etc....
+ ~~ -> request alias #0 creation (if not yet exists) for eth0
+
+The corresponding route is also set up by this command. Please note:
+The route always points to the base interface.
+
+
+Alias deletion
+==============
+
+The alias is removed by shutting the alias down::
+
+ # ifconfig eth0:0 down
+ ~~~~~~~~~~ -> will delete alias
+
+
+Alias (re-)configuring
+======================
+
+Aliases are not real devices, but programs should be able to configure
+and refer to them as usual (ifconfig, route, etc).
+
+
+Relationship with main device
+=============================
+
+If the base device is shut down the added aliases will be deleted too.
diff --git a/Documentation/networking/alias.txt b/Documentation/networking/alias.txt
deleted file mode 100644
index 85046f53fcfc..000000000000
--- a/Documentation/networking/alias.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-
-IP-Aliasing:
-============
-
-IP-aliases are an obsolete way to manage multiple IP-addresses/masks
-per interface. Newer tools such as iproute2 support multiple
-address/prefixes per interface, but aliases are still supported
-for backwards compatibility.
-
-An alias is formed by adding a colon and a string when running ifconfig.
-This string is usually numeric, but this is not a must.
-
-o Alias creation.
- Alias creation is done by 'magic' interface naming: eg. to create a
- 200.1.1.1 alias for eth0 ...
-
- # ifconfig eth0:0 200.1.1.1 etc,etc....
- ~~ -> request alias #0 creation (if not yet exists) for eth0
-
- The corresponding route is also set up by this command.
- Please note: The route always points to the base interface.
-
-
-o Alias deletion.
- The alias is removed by shutting the alias down:
-
- # ifconfig eth0:0 down
- ~~~~~~~~~~ -> will delete alias
-
-
-o Alias (re-)configuring
-
- Aliases are not real devices, but programs should be able to configure and
- refer to them as usual (ifconfig, route, etc).
-
-
-o Relationship with main device
-
- If the base device is shut down the added aliases will be deleted
- too.
diff --git a/Documentation/networking/bridge.txt b/Documentation/networking/bridge.rst
index a27cb6214ed7..4aef9cddde2f 100644
--- a/Documentation/networking/bridge.txt
+++ b/Documentation/networking/bridge.rst
@@ -1,3 +1,9 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================
+Ethernet Bridging
+=================
+
In order to use the Ethernet bridging functionality, you'll need the
userspace tools.
diff --git a/Documentation/networking/can_ucan_protocol.rst b/Documentation/networking/can_ucan_protocol.rst
new file mode 100644
index 000000000000..4cef88d24fc7
--- /dev/null
+++ b/Documentation/networking/can_ucan_protocol.rst
@@ -0,0 +1,332 @@
+=================
+The UCAN Protocol
+=================
+
+UCAN is the protocol used by the microcontroller-based USB-CAN
+adapter that is integrated on System-on-Modules from Theobroma Systems
+and that is also available as a standalone USB stick.
+
+The UCAN protocol has been designed to be hardware-independent.
+It is modeled closely after how Linux represents CAN devices
+internally. All multi-byte integers are encoded as Little Endian.
+
+All structures mentioned in this document are defined in
+``drivers/net/can/usb/ucan.c``.
+
+USB Endpoints
+=============
+
+UCAN devices use three USB endpoints:
+
+CONTROL endpoint
+ The driver sends device management commands on this endpoint
+
+IN endpoint
+ The device sends CAN data frames and CAN error frames
+
+OUT endpoint
+ The driver sends CAN data frames on the out endpoint
+
+
+CONTROL Messages
+================
+
+UCAN devices are configured using vendor requests on the control pipe.
+
+To support multiple CAN interfaces in a single USB device all
+configuration commands target the corresponding interface in the USB
+descriptor.
+
+The driver uses ``ucan_ctrl_command_in/out`` and
+``ucan_device_request_in`` to deliver commands to the device.
+
+Setup Packet
+------------
+
+================= =====================================================
+``bmRequestType`` Direction | Vendor | (Interface or Device)
+``bRequest`` Command Number
+``wValue`` Subcommand Number (16 Bit) or 0 if not used
+``wIndex`` USB Interface Index (0 for device commands)
+``wLength`` * Host to Device - Number of bytes to transmit
+ * Device to Host - Maximum Number of bytes to
+ receive. If the device send less. Commom ZLP
+ semantics are used.
+================= =====================================================
+
+Error Handling
+--------------
+
+The device indicates failed control commands by stalling the
+pipe.
+
+Device Commands
+---------------
+
+UCAN_DEVICE_GET_FW_STRING
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+*Dev2Host; optional*
+
+Request the device firmware string.
+
+
+Interface Commands
+------------------
+
+UCAN_COMMAND_START
+~~~~~~~~~~~~~~~~~~
+
+*Host2Dev; mandatory*
+
+Bring the CAN interface up.
+
+Payload Format
+ ``ucan_ctl_payload_t.cmd_start``
+
+==== ============================
+mode or mask of ``UCAN_MODE_*``
+==== ============================
+
+UCAN_COMMAND_STOP
+~~~~~~~~~~~~~~~~~~
+
+*Host2Dev; mandatory*
+
+Stop the CAN interface
+
+Payload Format
+ *empty*
+
+UCAN_COMMAND_RESET
+~~~~~~~~~~~~~~~~~~
+
+*Host2Dev; mandatory*
+
+Reset the CAN controller (including error counters)
+
+Payload Format
+ *empty*
+
+UCAN_COMMAND_GET
+~~~~~~~~~~~~~~~~
+
+*Host2Dev; mandatory*
+
+Get Information from the Device
+
+Subcommands
+^^^^^^^^^^^
+
+UCAN_COMMAND_GET_INFO
+ Request the device information structure ``ucan_ctl_payload_t.device_info``.
+
+ See the ``device_info`` field for details, and
+ ``uapi/linux/can/netlink.h`` for an explanation of the
+ ``can_bittiming fields``.
+
+ Payload Format
+ ``ucan_ctl_payload_t.device_info``
+
+UCAN_COMMAND_GET_PROTOCOL_VERSION
+
+ Request the device protocol version
+ ``ucan_ctl_payload_t.protocol_version``. The current protocol version is 3.
+
+ Payload Format
+ ``ucan_ctl_payload_t.protocol_version``
+
+.. note:: Devices that do not implement this command use the old
+ protocol version 1
+
+UCAN_COMMAND_SET_BITTIMING
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+*Host2Dev; mandatory*
+
+Setup bittiming by sending the the structure
+``ucan_ctl_payload_t.cmd_set_bittiming`` (see ``struct bittiming`` for
+details)
+
+Payload Format
+ ``ucan_ctl_payload_t.cmd_set_bittiming``.
+
+UCAN_SLEEP/WAKE
+~~~~~~~~~~~~~~~
+
+*Host2Dev; optional*
+
+Configure sleep and wake modes. Not yet supported by the driver.
+
+UCAN_FILTER
+~~~~~~~~~~~
+
+*Host2Dev; optional*
+
+Setup hardware CAN filters. Not yet supported by the driver.
+
+Allowed interface commands
+--------------------------
+
+================== =================== ==================
+Legal Device State Command New Device State
+================== =================== ==================
+stopped SET_BITTIMING stopped
+stopped START started
+started STOP or RESET stopped
+stopped STOP or RESET stopped
+started RESTART started
+any GET *no change*
+================== =================== ==================
+
+IN Message Format
+=================
+
+A data packet on the USB IN endpoint contains one or more
+``ucan_message_in`` values. If multiple messages are batched in a USB
+data packet, the ``len`` field can be used to jump to the next
+``ucan_message_in`` value (take care to sanity-check the ``len`` value
+against the actual data size).
+
+.. _can_ucan_in_message_len:
+
+``len`` field
+-------------
+
+Each ``ucan_message_in`` must be aligned to a 4-byte boundary (relative
+to the start of the start of the data buffer). That means that there
+may be padding bytes between multiple ``ucan_message_in`` values:
+
+.. code::
+
+ +----------------------------+ < 0
+ | |
+ | struct ucan_message_in |
+ | |
+ +----------------------------+ < len
+ [padding]
+ +----------------------------+ < round_up(len, 4)
+ | |
+ | struct ucan_message_in |
+ | |
+ +----------------------------+
+ [...]
+
+``type`` field
+--------------
+
+The ``type`` field specifies the type of the message.
+
+UCAN_IN_RX
+~~~~~~~~~~
+
+``subtype``
+ zero
+
+Data received from the CAN bus (ID + payload).
+
+UCAN_IN_TX_COMPLETE
+~~~~~~~~~~~~~~~~~~~
+
+``subtype``
+ zero
+
+The CAN device has sent a message to the CAN bus. It answers with a
+list of of tuples <echo-ids, flags>.
+
+The echo-id identifies the frame from (echos the id from a previous
+UCAN_OUT_TX message). The flag indicates the result of the
+transmission. Whereas a set Bit 0 indicates success. All other bits
+are reserved and set to zero.
+
+Flow Control
+------------
+
+When receiving CAN messages there is no flow control on the USB
+buffer. The driver has to handle inbound message quickly enough to
+avoid drops. I case the device buffer overflow the condition is
+reported by sending corresponding error frames (see
+:ref:`can_ucan_error_handling`)
+
+
+OUT Message Format
+==================
+
+A data packet on the USB OUT endpoint contains one or more ``struct
+ucan_message_out`` values. If multiple messages are batched into one
+data packet, the device uses the ``len`` field to jump to the next
+ucan_message_out value. Each ucan_message_out must be aligned to 4
+bytes (relative to the start of the data buffer). The mechanism is
+same as described in :ref:`can_ucan_in_message_len`.
+
+.. code::
+
+ +----------------------------+ < 0
+ | |
+ | struct ucan_message_out |
+ | |
+ +----------------------------+ < len
+ [padding]
+ +----------------------------+ < round_up(len, 4)
+ | |
+ | struct ucan_message_out |
+ | |
+ +----------------------------+
+ [...]
+
+``type`` field
+--------------
+
+In protocol version 3 only ``UCAN_OUT_TX`` is defined, others are used
+only by legacy devices (protocol version 1).
+
+UCAN_OUT_TX
+~~~~~~~~~~~
+``subtype``
+ echo id to be replied within a CAN_IN_TX_COMPLETE message
+
+Transmit a CAN frame. (parameters: ``id``, ``data``)
+
+Flow Control
+------------
+
+When the device outbound buffers are full it starts sending *NAKs* on
+the *OUT* pipe until more buffers are available. The driver stops the
+queue when a certain threshold of out packets are incomplete.
+
+.. _can_ucan_error_handling:
+
+CAN Error Handling
+==================
+
+If error reporting is turned on the device encodes errors into CAN
+error frames (see ``uapi/linux/can/error.h``) and sends it using the
+IN endpoint. The driver updates its error statistics and forwards
+it.
+
+Although UCAN devices can suppress error frames completely, in Linux
+the driver is always interested. Hence, the device is always started with
+the ``UCAN_MODE_BERR_REPORT`` set. Filtering those messages for the
+user space is done by the driver.
+
+Bus OFF
+-------
+
+- The device does not recover from bus of automatically.
+- Bus OFF is indicated by an error frame (see ``uapi/linux/can/error.h``)
+- Bus OFF recovery is started by ``UCAN_COMMAND_RESTART``
+- Once Bus OFF recover is completed the device sends an error frame
+ indicating that it is on ERROR-ACTIVE state.
+- During Bus OFF no frames are sent by the device.
+- During Bus OFF transmission requests from the host are completed
+ immediately with the success bit left unset.
+
+Example Conversation
+====================
+
+#) Device is connected to USB
+#) Host sends command ``UCAN_COMMAND_RESET``, subcmd 0
+#) Host sends command ``UCAN_COMMAND_GET``, subcmd ``UCAN_COMMAND_GET_INFO``
+#) Device sends ``UCAN_IN_DEVICE_INFO``
+#) Host sends command ``UCAN_OUT_SET_BITTIMING``
+#) Host sends command ``UCAN_COMMAND_START``, subcmd 0, mode ``UCAN_MODE_BERR_REPORT``
diff --git a/Documentation/networking/index.rst b/Documentation/networking/index.rst
index fec8588a588e..fcd710f2cc7a 100644
--- a/Documentation/networking/index.rst
+++ b/Documentation/networking/index.rst
@@ -6,15 +6,21 @@ Contents:
.. toctree::
:maxdepth: 2
+ netdev-FAQ
af_xdp
batman-adv
can
+ can_ucan_protocol
dpaa2/index
e100
e1000
kapi
z8530book
msg_zerocopy
+ failover
+ net_failover
+ alias
+ bridge
.. only:: subproject
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index ce8fbf5aa63c..8313a636dd53 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -81,6 +81,15 @@ fib_multipath_hash_policy - INTEGER
0 - Layer 3
1 - Layer 4
+ip_forward_update_priority - INTEGER
+ Whether to update SKB priority from "TOS" field in IPv4 header after it
+ is forwarded. The new SKB priority is mapped from TOS field value
+ according to an rt_tos2priority table (see e.g. man tc-prio).
+ Default: 1 (Update priority.)
+ Possible values:
+ 0 - Do not update priority.
+ 1 - Update priority.
+
route/max_size - INTEGER
Maximum number of routes allowed in the kernel. Increase
this when using large numbers of interfaces and/or routes.
@@ -733,11 +742,11 @@ tcp_limit_output_bytes - INTEGER
Controls TCP Small Queue limit per tcp socket.
TCP bulk sender tends to increase packets in flight until it
gets losses notifications. With SNDBUF autotuning, this can
- result in a large amount of packets queued in qdisc/device
- on the local machine, hurting latency of other flows, for
- typical pfifo_fast qdiscs.
- tcp_limit_output_bytes limits the number of bytes on qdisc
- or device to reduce artificial RTT/cwnd and reduce bufferbloat.
+ result in a large amount of packets queued on the local machine
+ (e.g.: qdiscs, CPU backlog, or device) hurting latency of other
+ flows, for typical pfifo_fast qdiscs. tcp_limit_output_bytes
+ limits the number of bytes on qdisc or device to reduce artificial
+ RTT/cwnd and reduce bufferbloat.
Default: 262144
tcp_challenge_ack_limit - INTEGER
@@ -1834,6 +1843,16 @@ stable_secret - IPv6 address
By default the stable secret is unset.
+addr_gen_mode - INTEGER
+ Defines how link-local and autoconf addresses are generated.
+
+ 0: generate address based on EUI64 (default)
+ 1: do no generate a link-local address, use EUI64 for addresses generated
+ from autoconf
+ 2: generate stable privacy addresses, using the secret from
+ stable_secret (RFC7217)
+ 3: generate stable privacy addresses, using a random secret if unset
+
drop_unicast_in_l2_multicast - BOOLEAN
Drop any unicast IPv6 packets that are received in link-layer
multicast (or broadcast) frames.
@@ -1863,6 +1882,11 @@ ratelimit - INTEGER
otherwise the minimal space between responses in milliseconds.
Default: 1000
+echo_ignore_all - BOOLEAN
+ If set non-zero, then the kernel will ignore all ICMP ECHO
+ requests sent to it over the IPv6 protocol.
+ Default: 0
+
xfrm6_gc_thresh - INTEGER
The threshold at which we will start garbage collecting for IPv6
destination cache entries. At twice this value the system will
diff --git a/Documentation/networking/net_failover.rst b/Documentation/networking/net_failover.rst
index 70ca2f5800c4..06c97dcb57ca 100644
--- a/Documentation/networking/net_failover.rst
+++ b/Documentation/networking/net_failover.rst
@@ -36,37 +36,39 @@ feature on the virtio-net interface and assign the same MAC address to both
virtio-net and VF interfaces.
Here is an example XML snippet that shows such configuration.
-
- <interface type='network'>
- <mac address='52:54:00:00:12:53'/>
- <source network='enp66s0f0_br'/>
- <target dev='tap01'/>
- <model type='virtio'/>
- <driver name='vhost' queues='4'/>
- <link state='down'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
- </interface>
- <interface type='hostdev' managed='yes'>
- <mac address='52:54:00:00:12:53'/>
- <source>
- <address type='pci' domain='0x0000' bus='0x42' slot='0x02' function='0x5'/>
- </source>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
- </interface>
+::
+
+ <interface type='network'>
+ <mac address='52:54:00:00:12:53'/>
+ <source network='enp66s0f0_br'/>
+ <target dev='tap01'/>
+ <model type='virtio'/>
+ <driver name='vhost' queues='4'/>
+ <link state='down'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
+ </interface>
+ <interface type='hostdev' managed='yes'>
+ <mac address='52:54:00:00:12:53'/>
+ <source>
+ <address type='pci' domain='0x0000' bus='0x42' slot='0x02' function='0x5'/>
+ </source>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
+ </interface>
Booting a VM with the above configuration will result in the following 3
netdevs created in the VM.
-
-4: ens10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
- link/ether 52:54:00:00:12:53 brd ff:ff:ff:ff:ff:ff
- inet 192.168.12.53/24 brd 192.168.12.255 scope global dynamic ens10
- valid_lft 42482sec preferred_lft 42482sec
- inet6 fe80::97d8:db2:8c10:b6d6/64 scope link
- valid_lft forever preferred_lft forever
-5: ens10nsby: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master ens10 state UP group default qlen 1000
- link/ether 52:54:00:00:12:53 brd ff:ff:ff:ff:ff:ff
-7: ens11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ens10 state UP group default qlen 1000
- link/ether 52:54:00:00:12:53 brd ff:ff:ff:ff:ff:ff
+::
+
+ 4: ens10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
+ link/ether 52:54:00:00:12:53 brd ff:ff:ff:ff:ff:ff
+ inet 192.168.12.53/24 brd 192.168.12.255 scope global dynamic ens10
+ valid_lft 42482sec preferred_lft 42482sec
+ inet6 fe80::97d8:db2:8c10:b6d6/64 scope link
+ valid_lft forever preferred_lft forever
+ 5: ens10nsby: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master ens10 state UP group default qlen 1000
+ link/ether 52:54:00:00:12:53 brd ff:ff:ff:ff:ff:ff
+ 7: ens11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ens10 state UP group default qlen 1000
+ link/ether 52:54:00:00:12:53 brd ff:ff:ff:ff:ff:ff
ens10 is the 'failover' master netdev, ens10nsby and ens11 are the slave
'standby' and 'primary' netdevs respectively.
@@ -80,37 +82,38 @@ the paravirtual datapath when the VF is unplugged.
Here is a sample script that shows the steps to initiate live migration on
the source hypervisor.
+::
-# cat vf_xml
-<interface type='hostdev' managed='yes'>
- <mac address='52:54:00:00:12:53'/>
- <source>
- <address type='pci' domain='0x0000' bus='0x42' slot='0x02' function='0x5'/>
- </source>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
-</interface>
+ # cat vf_xml
+ <interface type='hostdev' managed='yes'>
+ <mac address='52:54:00:00:12:53'/>
+ <source>
+ <address type='pci' domain='0x0000' bus='0x42' slot='0x02' function='0x5'/>
+ </source>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
+ </interface>
-# Source Hypervisor
-#!/bin/bash
+ # Source Hypervisor
+ #!/bin/bash
-DOMAIN=fedora27-tap01
-PF=enp66s0f0
-VF_NUM=5
-TAP_IF=tap01
-VF_XML=
+ DOMAIN=fedora27-tap01
+ PF=enp66s0f0
+ VF_NUM=5
+ TAP_IF=tap01
+ VF_XML=
-MAC=52:54:00:00:12:53
-ZERO_MAC=00:00:00:00:00:00
+ MAC=52:54:00:00:12:53
+ ZERO_MAC=00:00:00:00:00:00
-virsh domif-setlink $DOMAIN $TAP_IF up
-bridge fdb del $MAC dev $PF master
-virsh detach-device $DOMAIN $VF_XML
-ip link set $PF vf $VF_NUM mac $ZERO_MAC
+ virsh domif-setlink $DOMAIN $TAP_IF up
+ bridge fdb del $MAC dev $PF master
+ virsh detach-device $DOMAIN $VF_XML
+ ip link set $PF vf $VF_NUM mac $ZERO_MAC
-virsh migrate --live $DOMAIN qemu+ssh://$REMOTE_HOST/system
+ virsh migrate --live $DOMAIN qemu+ssh://$REMOTE_HOST/system
-# Destination Hypervisor
-#!/bin/bash
+ # Destination Hypervisor
+ #!/bin/bash
-virsh attach-device $DOMAIN $VF_XML
-virsh domif-setlink $DOMAIN $TAP_IF down
+ virsh attach-device $DOMAIN $VF_XML
+ virsh domif-setlink $DOMAIN $TAP_IF down
diff --git a/Documentation/networking/netdev-FAQ.rst b/Documentation/networking/netdev-FAQ.rst
new file mode 100644
index 000000000000..0ac5fa77f501
--- /dev/null
+++ b/Documentation/networking/netdev-FAQ.rst
@@ -0,0 +1,259 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. _netdev-FAQ:
+
+==========
+netdev FAQ
+==========
+
+Q: What is netdev?
+------------------
+A: It is a mailing list for all network-related Linux stuff. This
+includes anything found under net/ (i.e. core code like IPv6) and
+drivers/net (i.e. hardware specific drivers) in the Linux source tree.
+
+Note that some subsystems (e.g. wireless drivers) which have a high
+volume of traffic have their own specific mailing lists.
+
+The netdev list is managed (like many other Linux mailing lists) through
+VGER (http://vger.kernel.org/) and archives can be found below:
+
+- http://marc.info/?l=linux-netdev
+- http://www.spinics.net/lists/netdev/
+
+Aside from subsystems like that mentioned above, all network-related
+Linux development (i.e. RFC, review, comments, etc.) takes place on
+netdev.
+
+Q: How do the changes posted to netdev make their way into Linux?
+-----------------------------------------------------------------
+A: There are always two trees (git repositories) in play. Both are
+driven by David Miller, the main network maintainer. There is the
+``net`` tree, and the ``net-next`` tree. As you can probably guess from
+the names, the ``net`` tree is for fixes to existing code already in the
+mainline tree from Linus, and ``net-next`` is where the new code goes
+for the future release. You can find the trees here:
+
+- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
+- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
+
+Q: How often do changes from these trees make it to the mainline Linus tree?
+----------------------------------------------------------------------------
+A: To understand this, you need to know a bit of background information on
+the cadence of Linux development. Each new release starts off with a
+two week "merge window" where the main maintainers feed their new stuff
+to Linus for merging into the mainline tree. After the two weeks, the
+merge window is closed, and it is called/tagged ``-rc1``. No new
+features get mainlined after this -- only fixes to the rc1 content are
+expected. After roughly a week of collecting fixes to the rc1 content,
+rc2 is released. This repeats on a roughly weekly basis until rc7
+(typically; sometimes rc6 if things are quiet, or rc8 if things are in a
+state of churn), and a week after the last vX.Y-rcN was done, the
+official vX.Y is released.
+
+Relating that to netdev: At the beginning of the 2-week merge window,
+the ``net-next`` tree will be closed - no new changes/features. The
+accumulated new content of the past ~10 weeks will be passed onto
+mainline/Linus via a pull request for vX.Y -- at the same time, the
+``net`` tree will start accumulating fixes for this pulled content
+relating to vX.Y
+
+An announcement indicating when ``net-next`` has been closed is usually
+sent to netdev, but knowing the above, you can predict that in advance.
+
+IMPORTANT: Do not send new ``net-next`` content to netdev during the
+period during which ``net-next`` tree is closed.
+
+Shortly after the two weeks have passed (and vX.Y-rc1 is released), the
+tree for ``net-next`` reopens to collect content for the next (vX.Y+1)
+release.
+
+If you aren't subscribed to netdev and/or are simply unsure if
+``net-next`` has re-opened yet, simply check the ``net-next`` git
+repository link above for any new networking-related commits. You may
+also check the following website for the current status:
+
+ http://vger.kernel.org/~davem/net-next.html
+
+The ``net`` tree continues to collect fixes for the vX.Y content, and is
+fed back to Linus at regular (~weekly) intervals. Meaning that the
+focus for ``net`` is on stabilization and bug fixes.
+
+Finally, the vX.Y gets released, and the whole cycle starts over.
+
+Q: So where are we now in this cycle?
+
+Load the mainline (Linus) page here:
+
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
+
+and note the top of the "tags" section. If it is rc1, it is early in
+the dev cycle. If it was tagged rc7 a week ago, then a release is
+probably imminent.
+
+Q: How do I indicate which tree (net vs. net-next) my patch should be in?
+-------------------------------------------------------------------------
+A: Firstly, think whether you have a bug fix or new "next-like" content.
+Then once decided, assuming that you use git, use the prefix flag, i.e.
+::
+
+ git format-patch --subject-prefix='PATCH net-next' start..finish
+
+Use ``net`` instead of ``net-next`` (always lower case) in the above for
+bug-fix ``net`` content. If you don't use git, then note the only magic
+in the above is just the subject text of the outgoing e-mail, and you
+can manually change it yourself with whatever MUA you are comfortable
+with.
+
+Q: I sent a patch and I'm wondering what happened to it?
+--------------------------------------------------------
+Q: How can I tell whether it got merged?
+A: Start by looking at the main patchworks queue for netdev:
+
+ http://patchwork.ozlabs.org/project/netdev/list/
+
+The "State" field will tell you exactly where things are at with your
+patch.
+
+Q: The above only says "Under Review". How can I find out more?
+----------------------------------------------------------------
+A: Generally speaking, the patches get triaged quickly (in less than
+48h). So be patient. Asking the maintainer for status updates on your
+patch is a good way to ensure your patch is ignored or pushed to the
+bottom of the priority list.
+
+Q: I submitted multiple versions of the patch series
+----------------------------------------------------
+Q: should I directly update patchwork for the previous versions of these
+patch series?
+A: No, please don't interfere with the patch status on patchwork, leave
+it to the maintainer to figure out what is the most recent and current
+version that should be applied. If there is any doubt, the maintainer
+will reply and ask what should be done.
+
+Q: How can I tell what patches are queued up for backporting to the various stable releases?
+--------------------------------------------------------------------------------------------
+A: Normally Greg Kroah-Hartman collects stable commits himself, but for
+networking, Dave collects up patches he deems critical for the
+networking subsystem, and then hands them off to Greg.
+
+There is a patchworks queue that you can see here:
+
+ http://patchwork.ozlabs.org/bundle/davem/stable/?state=*
+
+It contains the patches which Dave has selected, but not yet handed off
+to Greg. If Greg already has the patch, then it will be here:
+
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git
+
+A quick way to find whether the patch is in this stable-queue is to
+simply clone the repo, and then git grep the mainline commit ID, e.g.
+::
+
+ stable-queue$ git grep -l 284041ef21fdf2e
+ releases/3.0.84/ipv6-fix-possible-crashes-in-ip6_cork_release.patch
+ releases/3.4.51/ipv6-fix-possible-crashes-in-ip6_cork_release.patch
+ releases/3.9.8/ipv6-fix-possible-crashes-in-ip6_cork_release.patch
+ stable/stable-queue$
+
+Q: I see a network patch and I think it should be backported to stable.
+-----------------------------------------------------------------------
+Q: Should I request it via stable@vger.kernel.org like the references in
+the kernel's Documentation/process/stable-kernel-rules.rst file say?
+A: No, not for networking. Check the stable queues as per above first
+to see if it is already queued. If not, then send a mail to netdev,
+listing the upstream commit ID and why you think it should be a stable
+candidate.
+
+Before you jump to go do the above, do note that the normal stable rules
+in :ref:`Documentation/process/stable-kernel-rules.rst <stable_kernel_rules>`
+still apply. So you need to explicitly indicate why it is a critical
+fix and exactly what users are impacted. In addition, you need to
+convince yourself that you *really* think it has been overlooked,
+vs. having been considered and rejected.
+
+Generally speaking, the longer it has had a chance to "soak" in
+mainline, the better the odds that it is an OK candidate for stable. So
+scrambling to request a commit be added the day after it appears should
+be avoided.
+
+Q: I have created a network patch and I think it should be backported to stable.
+--------------------------------------------------------------------------------
+Q: Should I add a Cc: stable@vger.kernel.org like the references in the
+kernel's Documentation/ directory say?
+A: No. See above answer. In short, if you think it really belongs in
+stable, then ensure you write a decent commit log that describes who
+gets impacted by the bug fix and how it manifests itself, and when the
+bug was introduced. If you do that properly, then the commit will get
+handled appropriately and most likely get put in the patchworks stable
+queue if it really warrants it.
+
+If you think there is some valid information relating to it being in
+stable that does *not* belong in the commit log, then use the three dash
+marker line as described in
+:ref:`Documentation/process/submitting-patches.rst <the_canonical_patch_format>`
+to temporarily embed that information into the patch that you send.
+
+Q: Are all networking bug fixes backported to all stable releases?
+------------------------------------------------------------------
+A: Due to capacity, Dave could only take care of the backports for the
+last two stable releases. For earlier stable releases, each stable
+branch maintainer is supposed to take care of them. If you find any
+patch is missing from an earlier stable branch, please notify
+stable@vger.kernel.org with either a commit ID or a formal patch
+backported, and CC Dave and other relevant networking developers.
+
+Q: Is the comment style convention different for the networking content?
+------------------------------------------------------------------------
+A: Yes, in a largely trivial way. Instead of this::
+
+ /*
+ * foobar blah blah blah
+ * another line of text
+ */
+
+it is requested that you make it look like this::
+
+ /* foobar blah blah blah
+ * another line of text
+ */
+
+Q: I am working in existing code that has the former comment style and not the latter.
+--------------------------------------------------------------------------------------
+Q: Should I submit new code in the former style or the latter?
+A: Make it the latter style, so that eventually all code in the domain
+of netdev is of this format.
+
+Q: I found a bug that might have possible security implications or similar.
+---------------------------------------------------------------------------
+Q: Should I mail the main netdev maintainer off-list?**
+A: No. The current netdev maintainer has consistently requested that
+people use the mailing lists and not reach out directly. If you aren't
+OK with that, then perhaps consider mailing security@kernel.org or
+reading about http://oss-security.openwall.org/wiki/mailing-lists/distros
+as possible alternative mechanisms.
+
+Q: What level of testing is expected before I submit my change?
+---------------------------------------------------------------
+A: If your changes are against ``net-next``, the expectation is that you
+have tested by layering your changes on top of ``net-next``. Ideally
+you will have done run-time testing specific to your change, but at a
+minimum, your changes should survive an ``allyesconfig`` and an
+``allmodconfig`` build without new warnings or failures.
+
+Q: Any other tips to help ensure my net/net-next patch gets OK'd?
+-----------------------------------------------------------------
+A: Attention to detail. Re-read your own work as if you were the
+reviewer. You can start with using ``checkpatch.pl``, perhaps even with
+the ``--strict`` flag. But do not be mindlessly robotic in doing so.
+If your change is a bug fix, make sure your commit log indicates the
+end-user visible symptom, the underlying reason as to why it happens,
+and then if necessary, explain why the fix proposed is the best way to
+get things done. Don't mangle whitespace, and as is common, don't
+mis-indent function arguments that span multiple lines. If it is your
+first patch, mail it to yourself so you can test apply it to an
+unpatched tree to confirm infrastructure didn't mangle it.
+
+Finally, go back and read
+:ref:`Documentation/process/submitting-patches.rst <submittingpatches>`
+to be sure you are not repeating some common mistake documented there.
diff --git a/Documentation/networking/netdev-FAQ.txt b/Documentation/networking/netdev-FAQ.txt
deleted file mode 100644
index fa951b820b25..000000000000
--- a/Documentation/networking/netdev-FAQ.txt
+++ /dev/null
@@ -1,244 +0,0 @@
-
-Information you need to know about netdev
------------------------------------------
-
-Q: What is netdev?
-
-A: It is a mailing list for all network-related Linux stuff. This includes
- anything found under net/ (i.e. core code like IPv6) and drivers/net
- (i.e. hardware specific drivers) in the Linux source tree.
-
- Note that some subsystems (e.g. wireless drivers) which have a high volume
- of traffic have their own specific mailing lists.
-
- The netdev list is managed (like many other Linux mailing lists) through
- VGER ( http://vger.kernel.org/ ) and archives can be found below:
-
- http://marc.info/?l=linux-netdev
- http://www.spinics.net/lists/netdev/
-
- Aside from subsystems like that mentioned above, all network-related Linux
- development (i.e. RFC, review, comments, etc.) takes place on netdev.
-
-Q: How do the changes posted to netdev make their way into Linux?
-
-A: There are always two trees (git repositories) in play. Both are driven
- by David Miller, the main network maintainer. There is the "net" tree,
- and the "net-next" tree. As you can probably guess from the names, the
- net tree is for fixes to existing code already in the mainline tree from
- Linus, and net-next is where the new code goes for the future release.
- You can find the trees here:
-
- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
-
-Q: How often do changes from these trees make it to the mainline Linus tree?
-
-A: To understand this, you need to know a bit of background information
- on the cadence of Linux development. Each new release starts off with
- a two week "merge window" where the main maintainers feed their new
- stuff to Linus for merging into the mainline tree. After the two weeks,
- the merge window is closed, and it is called/tagged "-rc1". No new
- features get mainlined after this -- only fixes to the rc1 content
- are expected. After roughly a week of collecting fixes to the rc1
- content, rc2 is released. This repeats on a roughly weekly basis
- until rc7 (typically; sometimes rc6 if things are quiet, or rc8 if
- things are in a state of churn), and a week after the last vX.Y-rcN
- was done, the official "vX.Y" is released.
-
- Relating that to netdev: At the beginning of the 2-week merge window,
- the net-next tree will be closed - no new changes/features. The
- accumulated new content of the past ~10 weeks will be passed onto
- mainline/Linus via a pull request for vX.Y -- at the same time,
- the "net" tree will start accumulating fixes for this pulled content
- relating to vX.Y
-
- An announcement indicating when net-next has been closed is usually
- sent to netdev, but knowing the above, you can predict that in advance.
-
- IMPORTANT: Do not send new net-next content to netdev during the
- period during which net-next tree is closed.
-
- Shortly after the two weeks have passed (and vX.Y-rc1 is released), the
- tree for net-next reopens to collect content for the next (vX.Y+1) release.
-
- If you aren't subscribed to netdev and/or are simply unsure if net-next
- has re-opened yet, simply check the net-next git repository link above for
- any new networking-related commits. You may also check the following
- website for the current status:
-
- http://vger.kernel.org/~davem/net-next.html
-
- The "net" tree continues to collect fixes for the vX.Y content, and
- is fed back to Linus at regular (~weekly) intervals. Meaning that the
- focus for "net" is on stabilization and bugfixes.
-
- Finally, the vX.Y gets released, and the whole cycle starts over.
-
-Q: So where are we now in this cycle?
-
-A: Load the mainline (Linus) page here:
-
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
-
- and note the top of the "tags" section. If it is rc1, it is early
- in the dev cycle. If it was tagged rc7 a week ago, then a release
- is probably imminent.
-
-Q: How do I indicate which tree (net vs. net-next) my patch should be in?
-
-A: Firstly, think whether you have a bug fix or new "next-like" content.
- Then once decided, assuming that you use git, use the prefix flag, i.e.
-
- git format-patch --subject-prefix='PATCH net-next' start..finish
-
- Use "net" instead of "net-next" (always lower case) in the above for
- bug-fix net content. If you don't use git, then note the only magic in
- the above is just the subject text of the outgoing e-mail, and you can
- manually change it yourself with whatever MUA you are comfortable with.
-
-Q: I sent a patch and I'm wondering what happened to it. How can I tell
- whether it got merged?
-
-A: Start by looking at the main patchworks queue for netdev:
-
- http://patchwork.ozlabs.org/project/netdev/list/
-
- The "State" field will tell you exactly where things are at with
- your patch.
-
-Q: The above only says "Under Review". How can I find out more?
-
-A: Generally speaking, the patches get triaged quickly (in less than 48h).
- So be patient. Asking the maintainer for status updates on your
- patch is a good way to ensure your patch is ignored or pushed to
- the bottom of the priority list.
-
-Q: I submitted multiple versions of the patch series, should I directly update
- patchwork for the previous versions of these patch series?
-
-A: No, please don't interfere with the patch status on patchwork, leave it to
- the maintainer to figure out what is the most recent and current version that
- should be applied. If there is any doubt, the maintainer will reply and ask
- what should be done.
-
-Q: How can I tell what patches are queued up for backporting to the
- various stable releases?
-
-A: Normally Greg Kroah-Hartman collects stable commits himself, but
- for networking, Dave collects up patches he deems critical for the
- networking subsystem, and then hands them off to Greg.
-
- There is a patchworks queue that you can see here:
- http://patchwork.ozlabs.org/bundle/davem/stable/?state=*
-
- It contains the patches which Dave has selected, but not yet handed
- off to Greg. If Greg already has the patch, then it will be here:
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git
-
- A quick way to find whether the patch is in this stable-queue is
- to simply clone the repo, and then git grep the mainline commit ID, e.g.
-
- stable-queue$ git grep -l 284041ef21fdf2e
- releases/3.0.84/ipv6-fix-possible-crashes-in-ip6_cork_release.patch
- releases/3.4.51/ipv6-fix-possible-crashes-in-ip6_cork_release.patch
- releases/3.9.8/ipv6-fix-possible-crashes-in-ip6_cork_release.patch
- stable/stable-queue$
-
-Q: I see a network patch and I think it should be backported to stable.
- Should I request it via "stable@vger.kernel.org" like the references in
- the kernel's Documentation/process/stable-kernel-rules.rst file say?
-
-A: No, not for networking. Check the stable queues as per above 1st to see
- if it is already queued. If not, then send a mail to netdev, listing
- the upstream commit ID and why you think it should be a stable candidate.
-
- Before you jump to go do the above, do note that the normal stable rules
- in Documentation/process/stable-kernel-rules.rst still apply. So you need to
- explicitly indicate why it is a critical fix and exactly what users are
- impacted. In addition, you need to convince yourself that you _really_
- think it has been overlooked, vs. having been considered and rejected.
-
- Generally speaking, the longer it has had a chance to "soak" in mainline,
- the better the odds that it is an OK candidate for stable. So scrambling
- to request a commit be added the day after it appears should be avoided.
-
-Q: I have created a network patch and I think it should be backported to
- stable. Should I add a "Cc: stable@vger.kernel.org" like the references
- in the kernel's Documentation/ directory say?
-
-A: No. See above answer. In short, if you think it really belongs in
- stable, then ensure you write a decent commit log that describes who
- gets impacted by the bugfix and how it manifests itself, and when the
- bug was introduced. If you do that properly, then the commit will
- get handled appropriately and most likely get put in the patchworks
- stable queue if it really warrants it.
-
- If you think there is some valid information relating to it being in
- stable that does _not_ belong in the commit log, then use the three
- dash marker line as described in Documentation/process/submitting-patches.rst to
- temporarily embed that information into the patch that you send.
-
-Q: Are all networking bug fixes backported to all stable releases?
-
-A: Due to capacity, Dave could only take care of the backports for the last
- 2 stable releases. For earlier stable releases, each stable branch maintainer
- is supposed to take care of them. If you find any patch is missing from an
- earlier stable branch, please notify stable@vger.kernel.org with either a
- commit ID or a formal patch backported, and CC Dave and other relevant
- networking developers.
-
-Q: Someone said that the comment style and coding convention is different
- for the networking content. Is this true?
-
-A: Yes, in a largely trivial way. Instead of this:
-
- /*
- * foobar blah blah blah
- * another line of text
- */
-
- it is requested that you make it look like this:
-
- /* foobar blah blah blah
- * another line of text
- */
-
-Q: I am working in existing code that has the former comment style and not the
- latter. Should I submit new code in the former style or the latter?
-
-A: Make it the latter style, so that eventually all code in the domain of
- netdev is of this format.
-
-Q: I found a bug that might have possible security implications or similar.
- Should I mail the main netdev maintainer off-list?
-
-A: No. The current netdev maintainer has consistently requested that people
- use the mailing lists and not reach out directly. If you aren't OK with
- that, then perhaps consider mailing "security@kernel.org" or reading about
- http://oss-security.openwall.org/wiki/mailing-lists/distros
- as possible alternative mechanisms.
-
-Q: What level of testing is expected before I submit my change?
-
-A: If your changes are against net-next, the expectation is that you
- have tested by layering your changes on top of net-next. Ideally you
- will have done run-time testing specific to your change, but at a
- minimum, your changes should survive an "allyesconfig" and an
- "allmodconfig" build without new warnings or failures.
-
-Q: Any other tips to help ensure my net/net-next patch gets OK'd?
-
-A: Attention to detail. Re-read your own work as if you were the
- reviewer. You can start with using checkpatch.pl, perhaps even
- with the "--strict" flag. But do not be mindlessly robotic in
- doing so. If your change is a bug-fix, make sure your commit log
- indicates the end-user visible symptom, the underlying reason as
- to why it happens, and then if necessary, explain why the fix proposed
- is the best way to get things done. Don't mangle whitespace, and as
- is common, don't mis-indent function arguments that span multiple lines.
- If it is your first patch, mail it to yourself so you can test apply
- it to an unpatched tree to confirm infrastructure didn't mangle it.
-
- Finally, go back and read Documentation/process/submitting-patches.rst to be
- sure you are not repeating some common mistake documented there.
diff --git a/Documentation/networking/scaling.txt b/Documentation/networking/scaling.txt
index f55639d71d35..b7056a8a0540 100644
--- a/Documentation/networking/scaling.txt
+++ b/Documentation/networking/scaling.txt
@@ -366,8 +366,13 @@ XPS: Transmit Packet Steering
Transmit Packet Steering is a mechanism for intelligently selecting
which transmit queue to use when transmitting a packet on a multi-queue
-device. To accomplish this, a mapping from CPU to hardware queue(s) is
-recorded. The goal of this mapping is usually to assign queues
+device. This can be accomplished by recording two kinds of maps, either
+a mapping of CPU to hardware queue(s) or a mapping of receive queue(s)
+to hardware transmit queue(s).
+
+1. XPS using CPUs map
+
+The goal of this mapping is usually to assign queues
exclusively to a subset of CPUs, where the transmit completions for
these queues are processed on a CPU within this set. This choice
provides two benefits. First, contention on the device queue lock is
@@ -377,15 +382,40 @@ transmit queue). Secondly, cache miss rate on transmit completion is
reduced, in particular for data cache lines that hold the sk_buff
structures.
-XPS is configured per transmit queue by setting a bitmap of CPUs that
-may use that queue to transmit. The reverse mapping, from CPUs to
-transmit queues, is computed and maintained for each network device.
-When transmitting the first packet in a flow, the function
-get_xps_queue() is called to select a queue. This function uses the ID
-of the running CPU as a key into the CPU-to-queue lookup table. If the
+2. XPS using receive queues map
+
+This mapping is used to pick transmit queue based on the receive
+queue(s) map configuration set by the administrator. A set of receive
+queues can be mapped to a set of transmit queues (many:many), although
+the common use case is a 1:1 mapping. This will enable sending packets
+on the same queue associations for transmit and receive. This is useful for
+busy polling multi-threaded workloads where there are challenges in
+associating a given CPU to a given application thread. The application
+threads are not pinned to CPUs and each thread handles packets
+received on a single queue. The receive queue number is cached in the
+socket for the connection. In this model, sending the packets on the same
+transmit queue corresponding to the associated receive queue has benefits
+in keeping the CPU overhead low. Transmit completion work is locked into
+the same queue-association that a given application is polling on. This
+avoids the overhead of triggering an interrupt on another CPU. When the
+application cleans up the packets during the busy poll, transmit completion
+may be processed along with it in the same thread context and so result in
+reduced latency.
+
+XPS is configured per transmit queue by setting a bitmap of
+CPUs/receive-queues that may use that queue to transmit. The reverse
+mapping, from CPUs to transmit queues or from receive-queues to transmit
+queues, is computed and maintained for each network device. When
+transmitting the first packet in a flow, the function get_xps_queue() is
+called to select a queue. This function uses the ID of the receive queue
+for the socket connection for a match in the receive queue-to-transmit queue
+lookup table. Alternatively, this function can also use the ID of the
+running CPU as a key into the CPU-to-queue lookup table. If the
ID matches a single queue, that is used for transmission. If multiple
queues match, one is selected by using the flow hash to compute an index
-into the set.
+into the set. When selecting the transmit queue based on receive queue(s)
+map, the transmit device is not validated against the receive device as it
+requires expensive lookup operation in the datapath.
The queue chosen for transmitting a particular flow is saved in the
corresponding socket structure for the flow (e.g. a TCP connection).
@@ -404,11 +434,15 @@ acknowledged.
XPS is only available if the kconfig symbol CONFIG_XPS is enabled (on by
default for SMP). The functionality remains disabled until explicitly
-configured. To enable XPS, the bitmap of CPUs that may use a transmit
-queue is configured using the sysfs file entry:
+configured. To enable XPS, the bitmap of CPUs/receive-queues that may
+use a transmit queue is configured using the sysfs file entry:
+For selection based on CPUs map:
/sys/class/net/<dev>/queues/tx-<n>/xps_cpus
+For selection based on receive-queues map:
+/sys/class/net/<dev>/queues/tx-<n>/xps_rxqs
+
== Suggested Configuration
For a network device with a single transmission queue, XPS configuration
@@ -421,6 +455,11 @@ best CPUs to share a given queue are probably those that share the cache
with the CPU that processes transmit completions for that queue
(transmit interrupts).
+For transmit queue selection based on receive queue(s), XPS has to be
+explicitly configured mapping receive-queue(s) to transmit queue(s). If the
+user configuration for receive-queue map does not apply, then the transmit
+queue is selected based on the CPUs map.
+
Per TX Queue rate limitation:
=============================
diff --git a/Documentation/networking/ti-cpsw.txt b/Documentation/networking/ti-cpsw.txt
new file mode 100644
index 000000000000..67039205bd69
--- /dev/null
+++ b/Documentation/networking/ti-cpsw.txt
@@ -0,0 +1,540 @@
+* Texas Instruments CPSW ethernet driver
+
+Multiqueue & CBS & MQPRIO
+=====================================================================
+=====================================================================
+
+The cpsw has 3 CBS shapers for each external ports. This document
+describes MQPRIO and CBS Qdisc offload configuration for cpsw driver
+based on examples. It potentially can be used in audio video bridging
+(AVB) and time sensitive networking (TSN).
+
+The following examples were tested on AM572x EVM and BBB boards.
+
+Test setup
+==========
+
+Under consideration two examples with AM572x EVM running cpsw driver
+in dual_emac mode.
+
+Several prerequisites:
+- TX queues must be rated starting from txq0 that has highest priority
+- Traffic classes are used starting from 0, that has highest priority
+- CBS shapers should be used with rated queues
+- The bandwidth for CBS shapers has to be set a little bit more then
+ potential incoming rate, thus, rate of all incoming tx queues has
+ to be a little less
+- Real rates can differ, due to discreetness
+- Map skb-priority to txq is not enough, also skb-priority to l2 prio
+ map has to be created with ip or vconfig tool
+- Any l2/socket prio (0 - 7) for classes can be used, but for
+ simplicity default values are used: 3 and 2
+- only 2 classes tested: A and B, but checked and can work with more,
+ maximum allowed 4, but only for 3 rate can be set.
+
+Test setup for examples
+=======================
+ +-------------------------------+
+ |--+ |
+ | | Workstation0 |
+ |E | MAC 18:03:73:66:87:42 |
++-----------------------------+ +--|t | |
+| | 1 | E | | |h |./tsn_listener -d \ |
+| Target board: | 0 | t |--+ |0 | 18:03:73:66:87:42 -i eth0 \|
+| AM572x EVM | 0 | h | | | -s 1500 |
+| | 0 | 0 | |--+ |
+| Only 2 classes: |Mb +---| +-------------------------------+
+| class A, class B | |
+| | +---| +-------------------------------+
+| | 1 | E | |--+ |
+| | 0 | t | | | Workstation1 |
+| | 0 | h |--+ |E | MAC 20:cf:30:85:7d:fd |
+| |Mb | 1 | +--|t | |
++-----------------------------+ |h |./tsn_listener -d \ |
+ |0 | 20:cf:30:85:7d:fd -i eth0 \|
+ | | -s 1500 |
+ |--+ |
+ +-------------------------------+
+
+*********************************************************************
+*********************************************************************
+*********************************************************************
+Example 1: One port tx AVB configuration scheme for target board
+----------------------------------------------------------------------
+(prints and scheme for AM572x evm, applicable for single port boards)
+
+tc - traffic class
+txq - transmit queue
+p - priority
+f - fifo (cpsw fifo)
+S - shaper configured
+
++------------------------------------------------------------------+ u
+| +---------------+ +---------------+ +------+ +------+ | s
+| | | | | | | | | | e
+| | App 1 | | App 2 | | Apps | | Apps | | r
+| | Class A | | Class B | | Rest | | Rest | |
+| | Eth0 | | Eth0 | | Eth0 | | Eth1 | | s
+| | VLAN100 | | VLAN100 | | | | | | | | p
+| | 40 Mb/s | | 20 Mb/s | | | | | | | | a
+| | SO_PRIORITY=3 | | SO_PRIORITY=2 | | | | | | | | c
+| | | | | | | | | | | | | | e
+| +---|-----------+ +---|-----------+ +---|--+ +---|--+ |
++-----|------------------|------------------|--------|-------------+
+ +-+ +------------+ | |
+ | | +-----------------+ +--+
+ | | | |
++---|-------|-------------|-----------------------|----------------+
+| +----+ +----+ +----+ +----+ +----+ |
+| | p3 | | p2 | | p1 | | p0 | | p0 | | k
+| \ / \ / \ / \ / \ / | e
+| \ / \ / \ / \ / \ / | r
+| \/ \/ \/ \/ \/ | n
+| | | | | | e
+| | | +-----+ | | l
+| | | | | |
+| +----+ +----+ +----+ +----+ | s
+| |tc0 | |tc1 | |tc2 | |tc0 | | p
+| \ / \ / \ / \ / | a
+| \ / \ / \ / \ / | c
+| \/ \/ \/ \/ | e
+| | | +-----+ | |
+| | | | | | |
+| | | | | | |
+| | | | | | |
+| +----+ +----+ +----+ +----+ +----+ |
+| |txq0| |txq1| |txq2| |txq3| |txq4| |
+| \ / \ / \ / \ / \ / |
+| \ / \ / \ / \ / \ / |
+| \/ \/ \/ \/ \/ |
+| +-|------|------|------|--+ +--|--------------+ |
+| | | | | | | Eth0.100 | | Eth1 | |
++---|------|------|------|------------------------|----------------+
+ | | | | |
+ p p p p |
+ 3 2 0-1, 4-7 <- L2 priority |
+ | | | | |
+ | | | | |
++---|------|------|------|------------------------|----------------+
+| | | | | |----------+ |
+| +----+ +----+ +----+ +----+ +----+ |
+| |dma7| |dma6| |dma5| |dma4| |dma3| |
+| \ / \ / \ / \ / \ / | c
+| \S / \S / \ / \ / \ / | p
+| \/ \/ \/ \/ \/ | s
+| | | | +----- | | w
+| | | | | | |
+| | | | | | | d
+| +----+ +----+ +----+p p+----+ | r
+| | | | | | |o o| | | i
+| | f3 | | f2 | | f0 |r r| f0 | | v
+| |tc0 | |tc1 | |tc2 |t t|tc0 | | e
+| \CBS / \CBS / \CBS /1 2\CBS / | r
+| \S / \S / \ / \ / |
+| \/ \/ \/ \/ |
++------------------------------------------------------------------+
+========================================Eth==========================>
+
+1)
+// Add 4 tx queues, for interface Eth0, and 1 tx queue for Eth1
+$ ethtool -L eth0 rx 1 tx 5
+rx unmodified, ignoring
+
+2)
+// Check if num of queues is set correctly:
+$ ethtool -l eth0
+Channel parameters for eth0:
+Pre-set maximums:
+RX: 8
+TX: 8
+Other: 0
+Combined: 0
+Current hardware settings:
+RX: 1
+TX: 5
+Other: 0
+Combined: 0
+
+3)
+// TX queues must be rated starting from 0, so set bws for tx0 and tx1
+// Set rates 40 and 20 Mb/s appropriately.
+// Pay attention, real speed can differ a bit due to discreetness.
+// Leave last 2 tx queues not rated.
+$ echo 40 > /sys/class/net/eth0/queues/tx-0/tx_maxrate
+$ echo 20 > /sys/class/net/eth0/queues/tx-1/tx_maxrate
+
+4)
+// Check maximum rate of tx (cpdma) queues:
+$ cat /sys/class/net/eth0/queues/tx-*/tx_maxrate
+40
+20
+0
+0
+0
+
+5)
+// Map skb->priority to traffic class:
+// 3pri -> tc0, 2pri -> tc1, (0,1,4-7)pri -> tc2
+// Map traffic class to transmit queue:
+// tc0 -> txq0, tc1 -> txq1, tc2 -> (txq2, txq3)
+$ tc qdisc replace dev eth0 handle 100: parent root mqprio num_tc 3 \
+map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@0 1@1 2@2 hw 1
+
+5a)
+// As two interface sharing same set of tx queues, assign all traffic
+// coming to interface Eth1 to separate queue in order to not mix it
+// with traffic from interface Eth0, so use separate txq to send
+// packets to Eth1, so all prio -> tc0 and tc0 -> txq4
+// Here hw 0, so here still default configuration for eth1 in hw
+$ tc qdisc replace dev eth1 handle 100: parent root mqprio num_tc 1 \
+map 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 queues 1@4 hw 0
+
+6)
+// Check classes settings
+$ tc -g class show dev eth0
++---(100:ffe2) mqprio
+| +---(100:3) mqprio
+| +---(100:4) mqprio
+|
++---(100:ffe1) mqprio
+| +---(100:2) mqprio
+|
++---(100:ffe0) mqprio
+ +---(100:1) mqprio
+
+$ tc -g class show dev eth1
++---(100:ffe0) mqprio
+ +---(100:5) mqprio
+
+7)
+// Set rate for class A - 41 Mbit (tc0, txq0) using CBS Qdisc
+// Set it +1 Mb for reserve (important!)
+// here only idle slope is important, others arg are ignored
+// Pay attention, real speed can differ a bit due to discreetness
+$ tc qdisc add dev eth0 parent 100:1 cbs locredit -1438 \
+hicredit 62 sendslope -959000 idleslope 41000 offload 1
+net eth0: set FIFO3 bw = 50
+
+8)
+// Set rate for class B - 21 Mbit (tc1, txq1) using CBS Qdisc:
+// Set it +1 Mb for reserve (important!)
+$ tc qdisc add dev eth0 parent 100:2 cbs locredit -1468 \
+hicredit 65 sendslope -979000 idleslope 21000 offload 1
+net eth0: set FIFO2 bw = 30
+
+9)
+// Create vlan 100 to map sk->priority to vlan qos
+$ ip link add link eth0 name eth0.100 type vlan id 100
+8021q: 802.1Q VLAN Support v1.8
+8021q: adding VLAN 0 to HW filter on device eth0
+8021q: adding VLAN 0 to HW filter on device eth1
+net eth0: Adding vlanid 100 to vlan filter
+
+10)
+// Map skb->priority to L2 prio, 1 to 1
+$ ip link set eth0.100 type vlan \
+egress 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+
+11)
+// Check egress map for vlan 100
+$ cat /proc/net/vlan/eth0.100
+[...]
+INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0
+EGRESS priority mappings: 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+
+12)
+// Run your appropriate tools with socket option "SO_PRIORITY"
+// to 3 for class A and/or to 2 for class B
+// (I took at https://www.spinics.net/lists/netdev/msg460869.html)
+./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p3 -s 1500&
+./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p2 -s 1500&
+
+13)
+// run your listener on workstation (should be in same vlan)
+// (I took at https://www.spinics.net/lists/netdev/msg460869.html)
+./tsn_listener -d 18:03:73:66:87:42 -i enp5s0 -s 1500
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39000 kbps
+
+14)
+// Restore default configuration if needed
+$ ip link del eth0.100
+$ tc qdisc del dev eth1 root
+$ tc qdisc del dev eth0 root
+net eth0: Prev FIFO2 is shaped
+net eth0: set FIFO3 bw = 0
+net eth0: set FIFO2 bw = 0
+$ ethtool -L eth0 rx 1 tx 1
+
+*********************************************************************
+*********************************************************************
+*********************************************************************
+Example 2: Two port tx AVB configuration scheme for target board
+----------------------------------------------------------------------
+(prints and scheme for AM572x evm, for dual emac boards only)
+
++------------------------------------------------------------------+ u
+| +----------+ +----------+ +------+ +----------+ +----------+ | s
+| | | | | | | | | | | | e
+| | App 1 | | App 2 | | Apps | | App 3 | | App 4 | | r
+| | Class A | | Class B | | Rest | | Class B | | Class A | |
+| | Eth0 | | Eth0 | | | | | Eth1 | | Eth1 | | s
+| | VLAN100 | | VLAN100 | | | | | VLAN100 | | VLAN100 | | p
+| | 40 Mb/s | | 20 Mb/s | | | | | 10 Mb/s | | 30 Mb/s | | a
+| | SO_PRI=3 | | SO_PRI=2 | | | | | SO_PRI=3 | | SO_PRI=2 | | c
+| | | | | | | | | | | | | | | | | e
+| +---|------+ +---|------+ +---|--+ +---|------+ +---|------+ |
++-----|-------------|-------------|---------|-------------|--------+
+ +-+ +-------+ | +----------+ +----+
+ | | +-------+------+ | |
+ | | | | | |
++---|-------|-------------|--------------|-------------|-------|---+
+| +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ |
+| | p3 | | p2 | | p1 | | p0 | | p0 | | p1 | | p2 | | p3 | | k
+| \ / \ / \ / \ / \ / \ / \ / \ / | e
+| \ / \ / \ / \ / \ / \ / \ / \ / | r
+| \/ \/ \/ \/ \/ \/ \/ \/ | n
+| | | | | | | | e
+| | | +----+ +----+ | | | l
+| | | | | | | |
+| +----+ +----+ +----+ +----+ +----+ +----+ | s
+| |tc0 | |tc1 | |tc2 | |tc2 | |tc1 | |tc0 | | p
+| \ / \ / \ / \ / \ / \ / | a
+| \ / \ / \ / \ / \ / \ / | c
+| \/ \/ \/ \/ \/ \/ | e
+| | | +-----+ +-----+ | | |
+| | | | | | | | | |
+| | | | | | | | | |
+| | | | | E E | | | | |
+| +----+ +----+ +----+ +----+ t t +----+ +----+ +----+ +----+ |
+| |txq0| |txq1| |txq4| |txq5| h h |txq6| |txq7| |txq3| |txq2| |
+| \ / \ / \ / \ / 0 1 \ / \ / \ / \ / |
+| \ / \ / \ / \ / . . \ / \ / \ / \ / |
+| \/ \/ \/ \/ 1 1 \/ \/ \/ \/ |
+| +-|------|------|------|--+ 0 0 +-|------|------|------|--+ |
+| | | | | | | 0 0 | | | | | | |
++---|------|------|------|---------------|------|------|------|----+
+ | | | | | | | |
+ p p p p p p p p
+ 3 2 0-1, 4-7 <-L2 pri-> 0-1, 4-7 2 3
+ | | | | | | | |
+ | | | | | | | |
++---|------|------|------|---------------|------|------|------|----+
+| | | | | | | | | |
+| +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ |
+| |dma7| |dma6| |dma3| |dma2| |dma1| |dma0| |dma4| |dma5| |
+| \ / \ / \ / \ / \ / \ / \ / \ / | c
+| \S / \S / \ / \ / \ / \ / \S / \S / | p
+| \/ \/ \/ \/ \/ \/ \/ \/ | s
+| | | | +----- | | | | | w
+| | | | | +----+ | | | |
+| | | | | | | | | | d
+| +----+ +----+ +----+p p+----+ +----+ +----+ | r
+| | | | | | |o o| | | | | | | i
+| | f3 | | f2 | | f0 |r CPSW r| f3 | | f2 | | f0 | | v
+| |tc0 | |tc1 | |tc2 |t t|tc0 | |tc1 | |tc2 | | e
+| \CBS / \CBS / \CBS /1 2\CBS / \CBS / \CBS / | r
+| \S / \S / \ / \S / \S / \ / |
+| \/ \/ \/ \/ \/ \/ |
++------------------------------------------------------------------+
+========================================Eth==========================>
+
+1)
+// Add 8 tx queues, for interface Eth0, but they are common, so are accessed
+// by two interfaces Eth0 and Eth1.
+$ ethtool -L eth1 rx 1 tx 8
+rx unmodified, ignoring
+
+2)
+// Check if num of queues is set correctly:
+$ ethtool -l eth0
+Channel parameters for eth0:
+Pre-set maximums:
+RX: 8
+TX: 8
+Other: 0
+Combined: 0
+Current hardware settings:
+RX: 1
+TX: 8
+Other: 0
+Combined: 0
+
+3)
+// TX queues must be rated starting from 0, so set bws for tx0 and tx1 for Eth0
+// and for tx2 and tx3 for Eth1. That is, rates 40 and 20 Mb/s appropriately
+// for Eth0 and 30 and 10 Mb/s for Eth1.
+// Real speed can differ a bit due to discreetness
+// Leave last 4 tx queues as not rated
+$ echo 40 > /sys/class/net/eth0/queues/tx-0/tx_maxrate
+$ echo 20 > /sys/class/net/eth0/queues/tx-1/tx_maxrate
+$ echo 30 > /sys/class/net/eth1/queues/tx-2/tx_maxrate
+$ echo 10 > /sys/class/net/eth1/queues/tx-3/tx_maxrate
+
+4)
+// Check maximum rate of tx (cpdma) queues:
+$ cat /sys/class/net/eth0/queues/tx-*/tx_maxrate
+40
+20
+30
+10
+0
+0
+0
+0
+
+5)
+// Map skb->priority to traffic class for Eth0:
+// 3pri -> tc0, 2pri -> tc1, (0,1,4-7)pri -> tc2
+// Map traffic class to transmit queue:
+// tc0 -> txq0, tc1 -> txq1, tc2 -> (txq4, txq5)
+$ tc qdisc replace dev eth0 handle 100: parent root mqprio num_tc 3 \
+map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@0 1@1 2@4 hw 1
+
+6)
+// Check classes settings
+$ tc -g class show dev eth0
++---(100:ffe2) mqprio
+| +---(100:5) mqprio
+| +---(100:6) mqprio
+|
++---(100:ffe1) mqprio
+| +---(100:2) mqprio
+|
++---(100:ffe0) mqprio
+ +---(100:1) mqprio
+
+7)
+// Set rate for class A - 41 Mbit (tc0, txq0) using CBS Qdisc for Eth0
+// here only idle slope is important, others ignored
+// Real speed can differ a bit due to discreetness
+$ tc qdisc add dev eth0 parent 100:1 cbs locredit -1470 \
+hicredit 62 sendslope -959000 idleslope 41000 offload 1
+net eth0: set FIFO3 bw = 50
+
+8)
+// Set rate for class B - 21 Mbit (tc1, txq1) using CBS Qdisc for Eth0
+$ tc qdisc add dev eth0 parent 100:2 cbs locredit -1470 \
+hicredit 65 sendslope -979000 idleslope 21000 offload 1
+net eth0: set FIFO2 bw = 30
+
+9)
+// Create vlan 100 to map sk->priority to vlan qos for Eth0
+$ ip link add link eth0 name eth0.100 type vlan id 100
+net eth0: Adding vlanid 100 to vlan filter
+
+10)
+// Map skb->priority to L2 prio for Eth0.100, one to one
+$ ip link set eth0.100 type vlan \
+egress 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+
+11)
+// Check egress map for vlan 100
+$ cat /proc/net/vlan/eth0.100
+[...]
+INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0
+EGRESS priority mappings: 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+
+12)
+// Map skb->priority to traffic class for Eth1:
+// 3pri -> tc0, 2pri -> tc1, (0,1,4-7)pri -> tc2
+// Map traffic class to transmit queue:
+// tc0 -> txq2, tc1 -> txq3, tc2 -> (txq6, txq7)
+$ tc qdisc replace dev eth1 handle 100: parent root mqprio num_tc 3 \
+map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@2 1@3 2@6 hw 1
+
+13)
+// Check classes settings
+$ tc -g class show dev eth1
++---(100:ffe2) mqprio
+| +---(100:7) mqprio
+| +---(100:8) mqprio
+|
++---(100:ffe1) mqprio
+| +---(100:4) mqprio
+|
++---(100:ffe0) mqprio
+ +---(100:3) mqprio
+
+14)
+// Set rate for class A - 31 Mbit (tc0, txq2) using CBS Qdisc for Eth1
+// here only idle slope is important, others ignored
+// Set it +1 Mb for reserve (important!)
+$ tc qdisc add dev eth1 parent 100:3 cbs locredit -1453 \
+hicredit 47 sendslope -969000 idleslope 31000 offload 1
+net eth1: set FIFO3 bw = 31
+
+15)
+// Set rate for class B - 11 Mbit (tc1, txq3) using CBS Qdisc for Eth1
+// Set it +1 Mb for reserve (important!)
+$ tc qdisc add dev eth1 parent 100:4 cbs locredit -1483 \
+hicredit 34 sendslope -989000 idleslope 11000 offload 1
+net eth1: set FIFO2 bw = 11
+
+16)
+// Create vlan 100 to map sk->priority to vlan qos for Eth1
+$ ip link add link eth1 name eth1.100 type vlan id 100
+net eth1: Adding vlanid 100 to vlan filter
+
+17)
+// Map skb->priority to L2 prio for Eth1.100, one to one
+$ ip link set eth1.100 type vlan \
+egress 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+
+18)
+// Check egress map for vlan 100
+$ cat /proc/net/vlan/eth1.100
+[...]
+INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0
+EGRESS priority mappings: 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+
+19)
+// Run appropriate tools with socket option "SO_PRIORITY" to 3
+// for class A and to 2 for class B. For both interfaces
+./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p2 -s 1500&
+./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p3 -s 1500&
+./tsn_talker -d 20:cf:30:85:7d:fd -i eth1.100 -p2 -s 1500&
+./tsn_talker -d 20:cf:30:85:7d:fd -i eth1.100 -p3 -s 1500&
+
+20)
+// run your listener on workstation (should be in same vlan)
+// (I took at https://www.spinics.net/lists/netdev/msg460869.html)
+./tsn_listener -d 18:03:73:66:87:42 -i enp5s0 -s 1500
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39012 kbps
+Receiving data rate: 39000 kbps
+
+21)
+// Restore default configuration if needed
+$ ip link del eth1.100
+$ ip link del eth0.100
+$ tc qdisc del dev eth1 root
+net eth1: Prev FIFO2 is shaped
+net eth1: set FIFO3 bw = 0
+net eth1: set FIFO2 bw = 0
+$ tc qdisc del dev eth0 root
+net eth0: Prev FIFO2 is shaped
+net eth0: set FIFO3 bw = 0
+net eth0: set FIFO2 bw = 0
+$ ethtool -L eth0 rx 1 tx 1
diff --git a/Documentation/process/stable-kernel-rules.rst b/Documentation/process/stable-kernel-rules.rst
index 36a2dded525b..0de6f6145cc6 100644
--- a/Documentation/process/stable-kernel-rules.rst
+++ b/Documentation/process/stable-kernel-rules.rst
@@ -37,7 +37,7 @@ Procedure for submitting patches to the -stable tree
- If the patch covers files in net/ or drivers/net please follow netdev stable
submission guidelines as described in
- Documentation/networking/netdev-FAQ.txt
+ :ref:`Documentation/networking/netdev-FAQ.rst <netdev-FAQ>`
- Security patches should not be handled (solely) by the -stable review
process but should follow the procedures in
:ref:`Documentation/admin-guide/security-bugs.rst <securitybugs>`.
diff --git a/Documentation/process/submitting-patches.rst b/Documentation/process/submitting-patches.rst
index 908bb55be407..c0917107b90a 100644
--- a/Documentation/process/submitting-patches.rst
+++ b/Documentation/process/submitting-patches.rst
@@ -611,6 +611,7 @@ which stable kernel versions should receive your fix. This is the preferred
method for indicating a bug fixed by the patch. See :ref:`describe_changes`
for more details.
+.. _the_canonical_patch_format:
14) The canonical patch format
------------------------------
diff --git a/Documentation/rfkill.txt b/Documentation/rfkill.txt
index a289285d2412..7d3684e81df6 100644
--- a/Documentation/rfkill.txt
+++ b/Documentation/rfkill.txt
@@ -9,7 +9,7 @@ rfkill - RF kill switch support
Introduction
============
-The rfkill subsystem provides a generic interface to disabling any radio
+The rfkill subsystem provides a generic interface for disabling any radio
transmitter in the system. When a transmitter is blocked, it shall not
radiate any power.
@@ -45,7 +45,7 @@ The rfkill subsystem is composed of three main components:
* the rfkill drivers.
The rfkill core provides API for kernel drivers to register their radio
-transmitter with the kernel, methods for turning it on and off and, letting
+transmitter with the kernel, methods for turning it on and off, and letting
the system know about hardware-disabled states that may be implemented on
the device.
@@ -54,7 +54,7 @@ ways for userspace to query the current states. See the "Userspace support"
section below.
When the device is hard-blocked (either by a call to rfkill_set_hw_state()
-or from query_hw_block) set_block() will be invoked for additional software
+or from query_hw_block), set_block() will be invoked for additional software
block, but drivers can ignore the method call since they can use the return
value of the function rfkill_set_hw_state() to sync the software state
instead of keeping track of calls to set_block(). In fact, drivers should
@@ -65,7 +65,6 @@ keeps track of soft and hard block separately.
Kernel API
==========
-
Drivers for radio transmitters normally implement an rfkill driver.
Platform drivers might implement input devices if the rfkill button is just
@@ -75,14 +74,14 @@ a way to turn on/off the transmitter(s).
For some platforms, it is possible that the hardware state changes during
suspend/hibernation, in which case it will be necessary to update the rfkill
-core with the current state is at resume time.
+core with the current state at resume time.
To create an rfkill driver, driver's Kconfig needs to have::
depends on RFKILL || !RFKILL
to ensure the driver cannot be built-in when rfkill is modular. The !RFKILL
-case allows the driver to be built when rfkill is not configured, which
+case allows the driver to be built when rfkill is not configured, in which
case all rfkill API can still be used but will be provided by static inlines
which compile to almost nothing.
@@ -91,7 +90,7 @@ rfkill drivers that control devices that can be hard-blocked unless they also
assign the poll_hw_block() callback (then the rfkill core will poll the
device). Don't do this unless you cannot get the event in any other way.
-RFKill provides per-switch LED triggers, which can be used to drive LEDs
+rfkill provides per-switch LED triggers, which can be used to drive LEDs
according to the switch state (LED_FULL when blocked, LED_OFF otherwise).
@@ -114,7 +113,7 @@ a specified type) into a state which also updates the default state for
hotplugged devices.
After an application opens /dev/rfkill, it can read the current state of all
-devices. Changes can be either obtained by either polling the descriptor for
+devices. Changes can be obtained by either polling the descriptor for
hotplug or state change events or by listening for uevents emitted by the
rfkill core framework.
@@ -127,8 +126,7 @@ environment variables set::
RFKILL_STATE
RFKILL_TYPE
-The contents of these variables corresponds to the "name", "state" and
+The content of these variables corresponds to the "name", "state" and
"type" sysfs files explained above.
-
For further details consult Documentation/ABI/stable/sysfs-class-rfkill.
diff --git a/MAINTAINERS b/MAINTAINERS
index 677bfb7935fc..7d1282b2e3f9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9002,6 +9002,14 @@ F: include/uapi/linux/meye.h
F: include/uapi/linux/ivtv*
F: include/uapi/linux/uvcvideo.h
+MEDIATEK BLUETOOTH DRIVER
+M: Sean Wang <sean.wang@mediatek.com>
+L: linux-bluetooth@vger.kernel.org
+L: linux-mediatek@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: Documentation/devicetree/bindings/net/mediatek-bluetooth.txt
+F: drivers/bluetooth/btmtkuart.c
+
MEDIATEK CIR DRIVER
M: Sean Wang <sean.wang@mediatek.com>
S: Maintained
@@ -9174,6 +9182,7 @@ S: Supported
W: http://www.mellanox.com
Q: http://patchwork.ozlabs.org/project/netdev/list/
F: drivers/net/ethernet/mellanox/mlxsw/
+F: tools/testing/selftests/drivers/net/mlxsw/
MELLANOX FIRMWARE FLASH LIBRARY (mlxfw)
M: mlxsw@mellanox.com
@@ -12079,6 +12088,13 @@ S: Maintained
F: sound/soc/codecs/rt*
F: include/sound/rt*.h
+REALTEK RTL83xx SMI DSA ROUTER CHIPS
+M: Linus Walleij <linus.walleij@linaro.org>
+S: Maintained
+F: Documentation/devicetree/bindings/net/dsa/realtek-smi.txt
+F: drivers/net/dsa/realtek-smi*
+F: drivers/net/dsa/rtl83*
+
REGISTER MAP ABSTRACTION
M: Mark Brown <broonie@kernel.org>
L: linux-kernel@vger.kernel.org
@@ -12186,6 +12202,8 @@ S: Maintained
F: Documentation/rfkill.txt
F: Documentation/ABI/stable/sysfs-class-rfkill
F: net/rfkill/
+F: include/linux/rfkill.h
+F: include/uapi/linux/rfkill.h
RHASHTABLE
M: Thomas Graf <tgraf@suug.ch>
@@ -12193,7 +12211,9 @@ M: Herbert Xu <herbert@gondor.apana.org.au>
L: netdev@vger.kernel.org
S: Maintained
F: lib/rhashtable.c
+F: lib/test_rhashtable.c
F: include/linux/rhashtable.h
+F: include/linux/rhashtable-types.h
RICOH R5C592 MEMORYSTICK DRIVER
M: Maxim Levitsky <maximlevitsky@gmail.com>
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index be14f16149d5..065fb372e355 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -112,4 +112,7 @@
#define SO_ZEROCOPY 60
+#define SO_TXTIME 61
+#define SCM_TXTIME SO_TXTIME
+
#endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/arm/boot/dts/gemini-dlink-dir-685.dts b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
index fb5c954ab95a..6f258b50eb44 100644
--- a/arch/arm/boot/dts/gemini-dlink-dir-685.dts
+++ b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
@@ -156,6 +156,100 @@
};
};
+ /* This is a RealTek RTL8366RB switch and PHY using SMI over GPIO */
+ switch {
+ compatible = "realtek,rtl8366rb";
+ /* 22 = MDIO (has input reads), 21 = MDC (clock, output only) */
+ mdc-gpios = <&gpio0 21 GPIO_ACTIVE_HIGH>;
+ mdio-gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio0 14 GPIO_ACTIVE_LOW>;
+ realtek,disable-leds;
+
+ switch_intc: interrupt-controller {
+ /* GPIO 15 provides the interrupt */
+ interrupt-parent = <&gpio0>;
+ interrupts = <15 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan0";
+ phy-handle = <&phy0>;
+ };
+ port@1 {
+ reg = <1>;
+ label = "lan1";
+ phy-handle = <&phy1>;
+ };
+ port@2 {
+ reg = <2>;
+ label = "lan2";
+ phy-handle = <&phy2>;
+ };
+ port@3 {
+ reg = <3>;
+ label = "lan3";
+ phy-handle = <&phy3>;
+ };
+ port@4 {
+ reg = <4>;
+ label = "wan";
+ phy-handle = <&phy4>;
+ };
+ rtl8366rb_cpu_port: port@5 {
+ reg = <5>;
+ label = "cpu";
+ ethernet = <&gmac0>;
+ phy-mode = "rgmii";
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+
+ };
+
+ mdio {
+ compatible = "realtek,smi-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy0: phy@0 {
+ reg = <0>;
+ interrupt-parent = <&switch_intc>;
+ interrupts = <0>;
+ };
+ phy1: phy@1 {
+ reg = <1>;
+ interrupt-parent = <&switch_intc>;
+ interrupts = <1>;
+ };
+ phy2: phy@2 {
+ reg = <2>;
+ interrupt-parent = <&switch_intc>;
+ interrupts = <2>;
+ };
+ phy3: phy@3 {
+ reg = <3>;
+ interrupt-parent = <&switch_intc>;
+ interrupts = <3>;
+ };
+ phy4: phy@4 {
+ reg = <4>;
+ interrupt-parent = <&switch_intc>;
+ interrupts = <12>;
+ };
+ };
+ };
+
soc {
flash@30000000 {
/*
@@ -223,10 +317,12 @@
* gpio0bgrp cover line 7 used by WPS LED
* gpio0cgrp cover line 8, 13 used by keys
* and 11, 12 used by the HD LEDs
+ * and line 14, 15 used by RTL8366
+ * RESET and phy ready
* gpio0egrp cover line 16 used by VDISP
* gpio0fgrp cover line 17 used by TK IRQ
* gpio0ggrp cover line 20 used by panel CS
- * gpio0hgrp cover line 21,22 used by RTL8366RB
+ * gpio0hgrp cover line 21,22 used by RTL8366RB MDIO
*/
gpio0_default_pins: pinctrl-gpio0 {
mux {
@@ -250,6 +346,32 @@
groups = "gpio1bgrp";
};
};
+ pinctrl-gmii {
+ mux {
+ function = "gmii";
+ groups = "gmii_gmac0_grp";
+ };
+ conf0 {
+ pins = "V8 GMAC0 RXDV", "T10 GMAC1 RXDV",
+ "Y7 GMAC0 RXC", "Y11 GMAC1 RXC",
+ "T8 GMAC0 TXEN", "W11 GMAC1 TXEN",
+ "U8 GMAC0 TXC", "V11 GMAC1 TXC",
+ "W8 GMAC0 RXD0", "V9 GMAC0 RXD1",
+ "Y8 GMAC0 RXD2", "U9 GMAC0 RXD3",
+ "T7 GMAC0 TXD0", "U6 GMAC0 TXD1",
+ "V7 GMAC0 TXD2", "U7 GMAC0 TXD3",
+ "Y12 GMAC1 RXD0", "V12 GMAC1 RXD1",
+ "T11 GMAC1 RXD2", "W12 GMAC1 RXD3",
+ "U10 GMAC1 TXD0", "Y10 GMAC1 TXD1",
+ "W10 GMAC1 TXD2", "T9 GMAC1 TXD3";
+ skew-delay = <7>;
+ };
+ /* Set up drive strength on GMAC0 to 16 mA */
+ conf1 {
+ groups = "gmii_gmac0_grp";
+ drive-strength = <16>;
+ };
+ };
};
};
@@ -291,6 +413,22 @@
<0x6000 0 0 4 &pci_intc 2>;
};
+ ethernet@60000000 {
+ status = "okay";
+
+ ethernet-port@0 {
+ phy-mode = "rgmii";
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ ethernet-port@1 {
+ /* Not used in this platform */
+ };
+ };
+
ata@63000000 {
status = "okay";
};
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index f6a62ae44a65..25b3ee85066e 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -22,6 +22,7 @@
#include <asm/cacheflush.h>
#include <asm/hwcap.h>
#include <asm/opcodes.h>
+#include <asm/system_info.h>
#include "bpf_jit_32.h"
@@ -47,32 +48,73 @@
* The callee saved registers depends on whether frame pointers are enabled.
* With frame pointers (to be compliant with the ABI):
*
- * high
- * original ARM_SP => +------------------+ \
- * | pc | |
- * current ARM_FP => +------------------+ } callee saved registers
- * |r4-r8,r10,fp,ip,lr| |
- * +------------------+ /
- * low
+ * high
+ * original ARM_SP => +--------------+ \
+ * | pc | |
+ * current ARM_FP => +--------------+ } callee saved registers
+ * |r4-r9,fp,ip,lr| |
+ * +--------------+ /
+ * low
*
* Without frame pointers:
*
- * high
- * original ARM_SP => +------------------+
- * | r4-r8,r10,fp,lr | callee saved registers
- * current ARM_FP => +------------------+
- * low
+ * high
+ * original ARM_SP => +--------------+
+ * | r4-r9,fp,lr | callee saved registers
+ * current ARM_FP => +--------------+
+ * low
*
* When popping registers off the stack at the end of a BPF function, we
* reference them via the current ARM_FP register.
*/
#define CALLEE_MASK (1 << ARM_R4 | 1 << ARM_R5 | 1 << ARM_R6 | \
- 1 << ARM_R7 | 1 << ARM_R8 | 1 << ARM_R10 | \
+ 1 << ARM_R7 | 1 << ARM_R8 | 1 << ARM_R9 | \
1 << ARM_FP)
#define CALLEE_PUSH_MASK (CALLEE_MASK | 1 << ARM_LR)
#define CALLEE_POP_MASK (CALLEE_MASK | 1 << ARM_PC)
-#define STACK_OFFSET(k) (k)
+enum {
+ /* Stack layout - these are offsets from (top of stack - 4) */
+ BPF_R2_HI,
+ BPF_R2_LO,
+ BPF_R3_HI,
+ BPF_R3_LO,
+ BPF_R4_HI,
+ BPF_R4_LO,
+ BPF_R5_HI,
+ BPF_R5_LO,
+ BPF_R7_HI,
+ BPF_R7_LO,
+ BPF_R8_HI,
+ BPF_R8_LO,
+ BPF_R9_HI,
+ BPF_R9_LO,
+ BPF_FP_HI,
+ BPF_FP_LO,
+ BPF_TC_HI,
+ BPF_TC_LO,
+ BPF_AX_HI,
+ BPF_AX_LO,
+ /* Stack space for BPF_REG_2, BPF_REG_3, BPF_REG_4,
+ * BPF_REG_5, BPF_REG_7, BPF_REG_8, BPF_REG_9,
+ * BPF_REG_FP and Tail call counts.
+ */
+ BPF_JIT_SCRATCH_REGS,
+};
+
+/*
+ * Negative "register" values indicate the register is stored on the stack
+ * and are the offset from the top of the eBPF JIT scratch space.
+ */
+#define STACK_OFFSET(k) (-4 - (k) * 4)
+#define SCRATCH_SIZE (BPF_JIT_SCRATCH_REGS * 4)
+
+#ifdef CONFIG_FRAME_POINTER
+#define EBPF_SCRATCH_TO_ARM_FP(x) ((x) - 4 * hweight16(CALLEE_PUSH_MASK) - 4)
+#else
+#define EBPF_SCRATCH_TO_ARM_FP(x) (x)
+#endif
+
#define TMP_REG_1 (MAX_BPF_JIT_REG + 0) /* TEMP Register 1 */
#define TMP_REG_2 (MAX_BPF_JIT_REG + 1) /* TEMP Register 2 */
#define TCALL_CNT (MAX_BPF_JIT_REG + 2) /* Tail Call Count */
@@ -94,35 +136,35 @@
* scratch memory space and we have to build eBPF 64 bit register from those.