- 30 Sep, 2017 3 commits
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Colin Ian King authored
The check on len is redundant as it is always greater than 1, so just remove it and make the printk less complex. Detected by CoverityScan, CID#1226729 ("Logically dead code") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Maciej Żenczykowski authored
So far we've been relying on sockopt(SOL_IP, IP_FREEBIND) being usable even on IPv6 sockets. However, it turns out it is perfectly reasonable to want to set freebind on an AF_INET6 SOCK_RAW socket - but there is no way to set any SOL_IP socket option on such a socket (they're all blindly errored out). One use case for this is to allow spoofing src ip on a raw socket via sendmsg cmsg. Tested: built, and booted # python >>> import socket >>> SOL_IP = socket.SOL_IP >>> SOL_IPV6 = socket.IPPROTO_IPV6 >>> IP_FREEBIND = 15 >>> IPV6_FREEBIND = 78 >>> s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, 0) >>> s.getsockopt(SOL_IP, IP_FREEBIND) 0 >>> s.getsockopt(SOL_IPV6, IPV6_FREEBIND) 0 >>> s.setsockopt(SOL_IPV6, IPV6_FREEBIND, 1) >>> s.getsockopt(SOL_IP, IP_FREEBIND) 1 >>> s.getsockopt(SOL_IPV6, IPV6_FREEBIND) 1 Signed-off-by:
Maciej Żenczykowski <maze@google.com> Signed-off-by:
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Mike Manning authored
The NS for DAD are sent on admin up as long as a valid qdisc is found. A race condition exists by which these packets will not egress the interface if the operational state of the lower device is not yet up. The solution is to delay DAD until the link is operationally up according to RFC2863. Rather than only doing this, follow the existing code checks by deferring IPv6 device initialization altogether. The fix allows DAD on devices like tunnels that are controlled by userspace control plane. The fix has no impact on regular deployments, but means that there is no IPv6 connectivity until the port has been opened in the case of port-based network access control, which should be desirable. Signed-off-by:
Mike Manning <mmanning@brocade.com> Signed-off-by:
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- 29 Sep, 2017 10 commits
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David Ahern authored
fib_check_nh does not use the fib_info arg; remove t. Signed-off-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
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David Ahern authored
fib_weight in fib_info is set but not used. Remove it and the helpers for setting it. Signed-off-by:
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David S. Miller authored
Martin KaFai Lau says: ==================== bpf: Extend bpf_{prog,map}_info This patch series adds more fields to bpf_prog_info and bpf_map_info. Please see individual patch for details. ==================== Signed-off-by: -
Martin KaFai Lau authored
This patch tests newly added fields of the bpf_attr, bpf_prog_info and bpf_map_info. Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Acked-by:
Alexei Starovoitov <ast@fb.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
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Martin KaFai Lau authored
This patch swaps the checking order. It now checks the map_info first and then prog_info. It is a prep work for adding test to the newly added fields (the map_ids of prog_info field in particular). Signed-off-by:
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Martin KaFai Lau authored
This patch extends the libbpf to provide API support to allow specifying BPF object name. In tools/lib/bpf/libbpf, the C symbol of the function and the map is used. Regarding section name, all maps are under the same section named "maps". Hence, section name is not a good choice for map's name. To be consistent with map, bpf_prog also follows and uses its function symbol as the prog's name. This patch adds logic to collect function's symbols in libbpf. There is existing codes to collect the map's symbols and no change is needed. The bpf_load_program_name() and bpf_map_create_name() are added to take the name argument. For the other bpf_map_create_xxx() variants, a name argument is directly added to them. In samples/bpf, bpf_load.c in particular, the symbol is also used as the map's name and the map symbols has already been collected in the existing code. For bpf_prog, bpf_load.c does not collect the function symbol name. We can consider to collect them later if there is a need to continue supporting the bpf_load.c. Signed-off-by:
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Martin KaFai Lau authored
This patch allows userspace to specify a name for a map during BPF_MAP_CREATE. The map's name can later be exported to user space via BPF_OBJ_GET_INFO_BY_FD. Signed-off-by:
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Martin KaFai Lau authored
The patch adds name and load_time to struct bpf_prog_aux. They are also exported to bpf_prog_info. The bpf_prog's name is passed by userspace during BPF_PROG_LOAD. The kernel only stores the first (BPF_PROG_NAME_LEN - 1) bytes and the name stored in the kernel is always \0 terminated. The kernel will reject name that contains characters other than isalnum() and '_'. It will also reject name that is not null terminated. The existing 'user->uid' of the bpf_prog_aux is also exported to the bpf_prog_info as created_by_uid. The existing 'used_maps' of the bpf_prog_aux is exported to the newly added members 'nr_map_ids' and 'map_ids' of the bpf_prog_info. On the input, nr_map_ids tells how big the userspace's map_ids buffer is. On the output, nr_map_ids tells the exact user_map_cnt and it will only copy up to the userspace's map_ids buffer is allowed. Signed-off-by:
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Hoang Tran authored
With the commit 76174004 (tcp: do not slow start when cwnd equals ssthresh), the comparison to the reduced cwnd in tcp_vegas_ssthresh() would under-evaluate the ssthresh. Signed-off-by:
Hoang Tran <hoang.tran@uclouvain.be> Signed-off-by:
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Nikolay Aleksandrov authored
We need to be able to transparently forward most link-local frames via tunnels (e.g. vxlan, qinq). Currently the bridge's group_fwd_mask has a mask which restricts the forwarding of STP and LACP, but we need to be able to forward these over tunnels and control that forwarding on a per-port basis thus add a new per-port group_fwd_mask option which only disallows mac pause frames to be forwarded (they're always dropped anyway). The patch does not change the current default situation - all of the others are still restricted unless configured for forwarding. We have successfully tested this patch with LACP and STP forwarding over VxLAN and qinq tunnels. Signed-off-by:
Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by:
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- 28 Sep, 2017 27 commits
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David S. Miller authored
Yunsheng Lin says: ==================== Add support for DCB feature in hns3 driver The patchset contains some enhancement related to DCB before adding support for DCB feature. This patchset depends on the following patchset: https://patchwork.ozlabs.org/cover/815646/ https://patchwork.ozlabs.org/cover/816145/ High Level Architecture: [ lldpad ] | | | [ hns3_dcbnl ] | | | [ hclge_dcb ] / \ / \ / \ [ hclge_main ] [ hclge_tm ] Current patch-set support following functionality: Use of lldptool to configure the tc schedule mode, tc bandwidth(if schedule mode is ETS), prio_tc_map and PFC parameter. V3: Drop mqprio support V2: Fix for not defining variables in local loop. V1: Initial Submit. ==================== Signed-off-by:
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Yunsheng Lin authored
When using lldptool to configure DCB parameter, hclge_dcb module call the client_ops->setup_tc to tell network stack which queue and priority is using for specific tc. Signed-off-by:
Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by:
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Yunsheng Lin authored
After the DCB feature is supported, fc_mode and dcb enable flag must be set according to the DCB parameter. Signed-off-by:
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Yunsheng Lin authored
This patch add dcb netlink interface by calling the interface from hclge_dcb module. This patch also update Makefile in order to build hns3_dcbnl module. Signed-off-by:
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Yunsheng Lin authored
The hclge_dcb module calls the interface from hclge_main/tm and provide interface for the dcb netlink interface. This patch also update Makefiles required to build the DCB supported code in HNS3 Ethernet driver and update the existing Kconfig file in the hisilicon folder. Signed-off-by:
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Yunsheng Lin authored
This patch add some interface and export some interface from hclge_tm and hclgc_main to support the upcoming DCB feature. Signed-off-by:
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Yunsheng Lin authored
When sriov is enabled and TM is in tc-based mode, vf's TM parameters is not set in TM initialization process. This patch add the tc_based TM support for sriov enabled using the information in vport struct. Signed-off-by:
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Yunsheng Lin authored
This patch add a tm_port_shaper cmd and set port shaper to HCLGE_ETHER_MAX_RATE on TM initialization process. Signed-off-by:
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Yunsheng Lin authored
This patch add a pfc_pause_en cmd, and use it to configure PFC option according to fc_mode in hdev->tm_info. Signed-off-by:
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Yunsheng Lin authored
Current buffer allocation can only happen at init, when doing buffer reallocation after init, care must be taken care of memory which priv_buf points to. This patch fixes it by using a dynamic allocated temporary memory. Because we only do buffer reallocation at init or when setting up the DCB parameter, and priv_buf is only used at buffer allocation process, so it is ok to use a dynamic allocated temporary memory. Signed-off-by:
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Yunsheng Lin authored
This patch add support of dynamically assigning tx buffer to TC when the TC is enabled. It will save buffer for rx direction to avoid packet loss. Signed-off-by:
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Alexey Dobriyan authored
Negative ARP header length are not a thing. Constify arguments while I'm at it. Space savings: add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3 (-3) function old new delta arpt_do_table 1163 1160 -3 Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
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Aviad Krawczyk authored
Fix the following scenario: 1. tx_free_poll is running on cpu X 2. xmit function is running on cpu Y and fails to get sq wqe 3. tx_free_poll frees wqes on cpu X and checks the queue is not stopped 4. xmit function stops the queue after failed to get sq wqe 5. The queue is stopped forever Signed-off-by:
Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by:
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Aviad Krawczyk authored
Set Rxq irq to specific cpu for allocating and receiving the skb from the same node. Signed-off-by:
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David S. Miller authored
Edward Cree says: ==================== bpf/verifier: disassembly improvements Fix the output of print_bpf_insn() for ALU ops that don't look like compound assignment (i.e. BPF_END and BPF_NEG). Sample output for a short test program: 0: (b4) (u32) r0 = (u32) 0 1: (dc) r0 = be32 r0 2: (84) r0 = (u32) -r0 3: (95) exit processed 4 insns, stack depth 0 ==================== Signed-off-by: -
Edward Cree authored
BPF_NEG takes only one operand, unlike the bulk of BPF_ALU[64] which are compound-assignments. So give it its own format in print_bpf_insn(). Signed-off-by:
Edward Cree <ecree@solarflare.com> Acked-by:
Alexei Starovoitov <ast@kernel.org> Acked-by:
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Edward Cree authored
print_bpf_insn() was treating all BPF_ALU[64] the same, but BPF_END has a different structure: it has a size in insn->imm (even if it's BPF_X) and uses the BPF_SRC (X or K) to indicate which endianness to use. So it needs different code to print it. Signed-off-by:
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Colin Ian King authored
The function ch_flower_stats_cb is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warnings: symbol 'ch_flower_stats_cb' was not declared. Should it be static? Signed-off-by:
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David S. Miller authored
Florian Westphal says: ==================== rtnetlink: preparation patches for further rtnl lock pushdown/removal Patches split large rtnl_fill_ifinfo into smaller chunks to better see which parts 1. require rtnl 2. do not require it at all 3. rely on rtnl locking now but could be converted Changes since v3: I dropped the 'ifalias' patch, I have a change to decouple ifalias and rtnl mutex, I will send it once this series has been merged. ==================== Signed-off-by: -
Florian Westphal authored
it can be switched to rcu. Reviewed-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
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Florian Westphal authored
Reviewed-by:
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Florian Westphal authored
similar to earlier patches, split out more parts of this function to better see what is happening and where we assume rtnl is locked. Reviewed-by:
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Florian Westphal authored
rtnl_fill_ifinfo currently requires caller to hold the rtnl mutex. Unfortunately the function is quite large which makes it harder to see which spots require the lock, which spots assume it and which ones could do without. Add helpers to factor out the ifindex dumping, one can use rcu to avoid rtnl dependency. Reviewed-by:
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Florian Westphal authored
Acked-by:
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Cong Wang authored
Instead of calling u32_lookup_ht() in a loop to find a unused handle, just switch to idr API to allocate new handles. u32 filters are special as the handle could contain a hash table id and a key id, so we need two IDR to allocate each of them. Cc: Chris Mi <chrism@mellanox.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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Cong Wang authored
Instead of calling basic_get() in a loop to find a unused handle, just switch to idr API to allocate new handles. Cc: Chris Mi <chrism@mellanox.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by:
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Cong Wang authored
Instead of calling cls_bpf_get() in a loop to find a unused handle, just switch to idr API to allocate new handles. Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Chris Mi <chrism@mellanox.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by:
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