- 02 7月, 2017 33 次提交
-
-
由 Lawrence Brakmo 提交于
Sample BPF program that sets congestion control to dctcp when both hosts are within the same datacenter. In this example that is assumed to be when they have the first 5.5 bytes of their IPv6 address are the same. Signed-off-by: NLawrence Brakmo <brakmo@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Lawrence Brakmo 提交于
Added support for changing congestion control for SOCK_OPS bpf programs through the setsockopt bpf helper function. It also adds a new SOCK_OPS op, BPF_SOCK_OPS_NEEDS_ECN, that is needed for congestion controls, like dctcp, that need to enable ECN in the SYN packets. Signed-off-by: NLawrence Brakmo <brakmo@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Lawrence Brakmo 提交于
This patch contains a BPF program to set initial receive window to 40 packets and send and receive buffers to 1.5MB. This would usually be done after doing appropriate checks that indicate the hosts are far enough away (i.e. large RTT). Signed-off-by: NLawrence Brakmo <brakmo@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Lawrence Brakmo 提交于
Added callbacks to BPF SOCK_OPS type program before an active connection is intialized and after a passive or active connection is established. The following patch demostrates how they can be used to set send and receive buffer sizes. Signed-off-by: NLawrence Brakmo <brakmo@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Lawrence Brakmo 提交于
Added support for calling a subset of socket setsockopts from BPF_PROG_TYPE_SOCK_OPS programs. The code was duplicated rather than making the changes to call the socket setsockopt function because the changes required would have been larger. The ops supported are: SO_RCVBUF SO_SNDBUF SO_MAX_PACING_RATE SO_PRIORITY SO_RCVLOWAT SO_MARK Signed-off-by: NLawrence Brakmo <brakmo@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Lawrence Brakmo 提交于
The sample bpf program, tcp_rwnd_kern.c, sets the initial advertized window to 40 packets in an environment where distinct IPv6 prefixes indicate that both hosts are not in the same data center. Signed-off-by: NLawrence Brakmo <brakmo@fb.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Lawrence Brakmo 提交于
This patch adds suppport for setting the initial advertized window from within a BPF_SOCK_OPS program. This can be used to support larger initial cwnd values in environments where it is known to be safe. Signed-off-by: NLawrence Brakmo <brakmo@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Lawrence Brakmo 提交于
The sample BPF program, tcp_synrto_kern.c, sets the SYN and SYN-ACK RTOs to 10ms when both hosts are within the same datacenter (i.e. small RTTs) in an environment where common IPv6 prefixes indicate both hosts are in the same data center. Signed-off-by: NLawrence Brakmo <brakmo@fb.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Lawrence Brakmo 提交于
This patch adds support for setting a per connection SYN and SYN_ACK RTOs from within a BPF_SOCK_OPS program. For example, to set small RTOs when it is known both hosts are within a datacenter. Signed-off-by: NLawrence Brakmo <brakmo@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Lawrence Brakmo 提交于
The program load_sock_ops can be used to load sock_ops bpf programs and to attach it to an existing (v2) cgroup. It can also be used to detach sock_ops programs. Examples: load_sock_ops [-l] <cg-path> <prog filename> Load and attaches a sock_ops program at the specified cgroup. If "-l" is used, the program will continue to run to output the BPF log buffer. If the specified filename does not end in ".o", it appends "_kern.o" to the name. load_sock_ops -r <cg-path> Detaches the currently attached sock_ops program from the specified cgroup. Signed-off-by: NLawrence Brakmo <brakmo@fb.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Lawrence Brakmo 提交于
Created a new BPF program type, BPF_PROG_TYPE_SOCK_OPS, and a corresponding struct that allows BPF programs of this type to access some of the socket's fields (such as IP addresses, ports, etc.). It uses the existing bpf cgroups infrastructure so the programs can be attached per cgroup with full inheritance support. The program will be called at appropriate times to set relevant connections parameters such as buffer sizes, SYN and SYN-ACK RTOs, etc., based on connection information such as IP addresses, port numbers, etc. Alghough there are already 3 mechanisms to set parameters (sysctls, route metrics and setsockopts), this new mechanism provides some distinct advantages. Unlike sysctls, it can set parameters per connection. In contrast to route metrics, it can also use port numbers and information provided by a user level program. In addition, it could set parameters probabilistically for evaluation purposes (i.e. do something different on 10% of the flows and compare results with the other 90% of the flows). Also, in cases where IPv6 addresses contain geographic information, the rules to make changes based on the distance (or RTT) between the hosts are much easier than route metric rules and can be global. Finally, unlike setsockopt, it oes not require application changes and it can be updated easily at any time. Although the bpf cgroup framework already contains a sock related program type (BPF_PROG_TYPE_CGROUP_SOCK), I created the new type (BPF_PROG_TYPE_SOCK_OPS) beccause the existing type expects to be called only once during the connections's lifetime. In contrast, the new program type will be called multiple times from different places in the network stack code. For example, before sending SYN and SYN-ACKs to set an appropriate timeout, when the connection is established to set congestion control, etc. As a result it has "op" field to specify the type of operation requested. The purpose of this new program type is to simplify setting connection parameters, such as buffer sizes, TCP's SYN RTO, etc. For example, it is easy to use facebook's internal IPv6 addresses to determine if both hosts of a connection are in the same datacenter. Therefore, it is easy to write a BPF program to choose a small SYN RTO value when both hosts are in the same datacenter. This patch only contains the framework to support the new BPF program type, following patches add the functionality to set various connection parameters. This patch defines a new BPF program type: BPF_PROG_TYPE_SOCKET_OPS and a new bpf syscall command to load a new program of this type: BPF_PROG_LOAD_SOCKET_OPS. Two new corresponding structs (one for the kernel one for the user/BPF program): /* kernel version */ struct bpf_sock_ops_kern { struct sock *sk; __u32 op; union { __u32 reply; __u32 replylong[4]; }; }; /* user version * Some fields are in network byte order reflecting the sock struct * Use the bpf_ntohl helper macro in samples/bpf/bpf_endian.h to * convert them to host byte order. */ struct bpf_sock_ops { __u32 op; union { __u32 reply; __u32 replylong[4]; }; __u32 family; __u32 remote_ip4; /* In network byte order */ __u32 local_ip4; /* In network byte order */ __u32 remote_ip6[4]; /* In network byte order */ __u32 local_ip6[4]; /* In network byte order */ __u32 remote_port; /* In network byte order */ __u32 local_port; /* In host byte horder */ }; Currently there are two types of ops. The first type expects the BPF program to return a value which is then used by the caller (or a negative value to indicate the operation is not supported). The second type expects state changes to be done by the BPF program, for example through a setsockopt BPF helper function, and they ignore the return value. The reply fields of the bpf_sockt_ops struct are there in case a bpf program needs to return a value larger than an integer. Signed-off-by: NLawrence Brakmo <brakmo@fb.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== pull request: bluetooth-next 2017-07-01 Here are some more Bluetooth patches for the 4.13 kernel: - Added support for Broadcom BCM43430 controllers - Added sockaddr length checks before accessing sa_family - Fixed possible "might sleep" errors in bnep, cmtp and hidp modules - A few other minor fixes Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Neil Horman 提交于
Based on a request raised on the sctp devel list, there is a need to augment the sctp_peeloff operation while specifying the O_CLOEXEC and O_NONBLOCK flags (simmilar to the socket syscall). Since modifying the SCTP_SOCKOPT_PEELOFF socket option would break user space ABI for existing programs, this patch creates a new socket option SCTP_SOCKOPT_PEELOFF_FLAGS, which accepts a third flags parameter to allow atomic assignment of the socket descriptor flags. Tested successfully by myself and the requestor Signed-off-by: NNeil Horman <nhorman@tuxdriver.com> CC: Vlad Yasevich <vyasevich@gmail.com> CC: "David S. Miller" <davem@davemloft.net> CC: Andreas Steinmetz <ast@domdv.de> CC: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: NMarcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
Edward Cree says: ==================== sfc: small MCDI cleanups Giving the full MCDI event rather than just the code can aid in debugging. While fixing this I noticed an outdated comment. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Edward Cree 提交于
Fix out-of-date comment. Signed-off-by: NEdward Cree <ecree@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Jon Cooper 提交于
Signed-off-by: NEdward Cree <ecree@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Colin Ian King 提交于
Trivial fix to spelling mistake in mlx5_core_dbg debug message Signed-off-by: NColin Ian King <colin.king@canonical.com> Reviewed-by: NIlan Tayari <ilant@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next由 David S. Miller 提交于
Samuel Ortiz says: ==================== NFC 4.13 pull request This is the NFC pull requesy for 4.13. We have: - A conversion to unified device and GPIO APIs for the fdp, pn544, and st{21,-nci} drivers. - A fix for NFC device IDs allocation. - A fix for the nfcmrvl driver firmware download mechanism. - A trf7970a DT and GPIO cleanup and clock setting fix. - A few fixes for potential overflows in the digital and LLCP code. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Maxime Ripard 提交于
This reverts commits 2c0cba48 ("arm: sun8i: sunxi-h3-h5: Add dt node for the syscon control module") to 2428fd0f ("arm64: defconfig: Enable dwmac-sun8i driver on defconfig") and 3432a86e ("arm: sun8i: orangepipc: use internal phy-mode") to 5a79b4f2 ("arm: sun8i: orangepi-2: use internal phy-mode") that should be merged through the arm-soc tree, and end up in merge conflicts and build failures. Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
Merge tag 'wireless-drivers-next-for-davem-2017-06-30' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for 4.13 Mostly fixes and cleanups, but iwlwifi and rtlwifi had also some new features. Major changes: iwlwifi * some changes in suspend/resume handling to support new FWs * Continued work towards the A000 family * support for a new version of the TX flush FW API * remove some noise from the kernel logs rtlwifi * more bluetooth coexistance improvements ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tonghao Zhang 提交于
When compiling OvS-master on 4.4.0-81 kernel, there is a warning: CC [M] /root/ovs/datapath/linux/datapath.o /root/ovs/datapath/linux/datapath.c: In function 'ovs_flow_cmd_set': /root/ovs/datapath/linux/datapath.c:1221:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=] This patch factors out match-init and action-copy to avoid "Wframe-larger-than=1024" warning. Because mask is only used to get actions, we new a function to save some stack space. Signed-off-by: NTonghao Zhang <xiangxia.m.yue@gmail.com> Acked-by: NPravin B Shelar <pshelar@ovn.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
Xin Long says: ==================== sctp: remove typedefs from structures part 1 As we know, typedef is suggested not to use in kernel, even checkpatch.pl also gives warnings about it. Now sctp is using it for many structures. All this kind of typedef's using should be removed. As the 1st part, this patchset is to remove it for 11 basic structures in linux/sctp.h. It is also to fix some indents. No any code's logic is changed in these patches, only cleaning up. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Xin Long 提交于
This patch is to remove the typedef sctp_init_chunk_t, and replace with struct sctp_init_chunk in the places where it's using this typedef. Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Xin Long 提交于
This patch is to remove the typedef sctp_inithdr_t, and replace with struct sctp_inithdr in the places where it's using this typedef. Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Xin Long 提交于
This patch is to remove the typedef sctp_data_chunk_t, and replace with struct sctp_data_chunk in the places where it's using this typedef. Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Xin Long 提交于
This patch is to remove the typedef sctp_datahdr_t, and replace with struct sctp_datahdr in the places where it's using this typedef. It is also to use izeof(variable) instead of sizeof(type). Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Xin Long 提交于
Remove this typedef, there is even no places using it. Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Xin Long 提交于
This patch is to remove the typedef sctp_param_t, and replace with struct sctp_paramhdr in the places where it's using this typedef. It is also to remove the useless declaration sctp_addip_addr_config and fix the lack of params for some other functions' declaration. Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Xin Long 提交于
This patch is to remove the typedef sctp_paramhdr_t, and replace with struct sctp_paramhdr in the places where it's using this typedef. It is also to fix some indents and use sizeof(variable) instead of sizeof(type). Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Xin Long 提交于
Remove this typedef, there is even no places using it. Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Xin Long 提交于
This patch is to remove the typedef sctp_cid_t, and replace with struct sctp_cid in the places where it's using this typedef. Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Xin Long 提交于
This patch is to remove the typedef sctp_chunkhdr_t, and replace with struct sctp_chunkhdr in the places where it's using this typedef. It is also to fix some indents and use sizeof(variable) instead of sizeof(type)., especially in sctp_new. Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Xin Long 提交于
This patch is to remove the typedef sctp_sctphdr_t, and replace with struct sctphdr in the places where it's using this typedef. It is also to fix some indents and use sizeof(variable) instead of sizeof(type). Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 01 7月, 2017 7 次提交
-
-
由 David S. Miller 提交于
Simon Horman says: ==================== nfp: introduce flower offload capabilities this series adds flower offload to the NFP driver. It builds on recent work to add representor and a skeleton flower app - now the app does what its name says. In general the approach taken is to allow some flows within the universe of possible flower matches and tc actions to be offloaded. It is planned that this support will grow over time but the support offered by this patch-set seems to be a reasonable starting point. Key Changes since v2: * Revised flow structures to simplify setup/teardown and locking of stats * Addressed other code-change review of v2 Other review questions regarding v2 have been answered on netdev. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Pieter Jansen van Vuuren 提交于
Previously the flower offloads never sends messages to the hardware, and never registers a handler for receiving messages from hardware. This patch enables the flower offloads to send control messages to hardware when adding and removing flow rules. Additionally it registers a control message rx handler for receiving stats updates from hardware for each offloaded flow. Additionally this patch adds 4 control message types; Add, modify and delete flow, as well as flow stats. It also allows nfp_flower_cmsg_get_data() to be used outside of cmsg.c. Signed-off-by: NPieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Signed-off-by: NSimon Horman <simon.horman@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Pieter Jansen van Vuuren 提交于
Previously there was no way of updating flow rule stats after they have been offloaded to hardware. This is solved by keeping track of stats received from hardware and providing this to the TC handler on request. Signed-off-by: NPieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Signed-off-by: NSimon Horman <simon.horman@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Pieter Jansen van Vuuren 提交于
Adds metadata describing the mask id of each flow and keeps track of flows installed in hardware. Previously a flow could not be removed from hardware as there was no way of knowing if that a specific flow was installed. This is solved by storing the offloaded flows in a hash table. Signed-off-by: NPieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Signed-off-by: NSimon Horman <simon.horman@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Pieter Jansen van Vuuren 提交于
Adds push vlan, pop vlan, output and drop action capabilities to flower offloads. Signed-off-by: NPieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Signed-off-by: NSimon Horman <simon.horman@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Pieter Jansen van Vuuren 提交于
Extends matching capabilities for flower offloads to include vlan, layer 2, layer 3 and layer 4 type matches. This includes both exact and wildcard matching. Signed-off-by: NPieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Signed-off-by: NSimon Horman <simon.horman@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Pieter Jansen van Vuuren 提交于
Extends the flower flow add function by calculating which match fields are present in the flower offload structure and allocating the appropriate space to describe these. Signed-off-by: NPieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Signed-off-by: NSimon Horman <simon.horman@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-