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2018-01-04tools: bpftool: remove new lines from errorsJakub Kicinski2-11/+11
It's a little bit unusual for kernel style, but we add the new line character to error strings inside the p_err() function. We do this because new lines at the end of error strings will break JSON output. Fix a few p_err("..\n") which snuck in recently. Fixes: 5ccda64d38cc ("bpftool: implement cgroup bpf operations") Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-01-04tools: bpftool: alias show and list commandsJakub Kicinski8-19/+22
iproute2 seems to accept show and list as aliases. Let's do the same thing, and by allowing both bring cgroup syntax back in line with maps and progs. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-01-04tools: bpftool: rename cgroup list -> show in the codeJakub Kicinski1-9/+9
So far we have used "show" as a keyword for listing programs and maps. Use the word "show" in the code for cgroups too, next commit will alias show and list. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-31selftests/bpf: test device info reporting for bound progsJakub Kicinski1-11/+101
Check if bound programs report correct device info. Test in local namespace, in remote one, back to the local ns, remove the device and check that information is cleared. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-31tools: bpftool: report device information for offloaded programsJakub Kicinski3-0/+57
Print the just-exposed device information about device to which program is bound. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-31bpf: offload: report device information for offloaded programsJakub Kicinski5-0/+73
Report to the user ifindex and namespace information of offloaded programs. If device has disappeared return -ENODEV. Specify the namespace using dev/inode combination. CC: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-31nsfs: generalize ns_get_path() for path resolution with a taskJakub Kicinski2-3/+29
ns_get_path() takes struct task_struct and proc_ns_ops as its parameters. For path resolution directly from a namespace, e.g. based on a networking device's net name space, we need more flexibility. Add a ns_get_path_cb() helper which will allow callers to use any method of obtaining the name space reference. Convert ns_get_path() to use ns_get_path_cb(). Following patches will bring a networking user. CC: Eric W. Biederman <ebiederm@xmission.com> Suggested-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-31bpf: offload: free program id when device disappearsJakub Kicinski3-2/+12
Bound programs are quite useless after their device disappears. They are simply waiting for reference count to go to zero, don't list them in BPF_PROG_GET_NEXT_ID by freeing their ID early. Note that orphaned offload programs will return -ENODEV on BPF_OBJ_GET_INFO_BY_FD so user will never see ID 0. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-31bpf: offload: free prog->aux->offload when device disappearsJakub Kicinski1-14/+9
All bpf offload operations should now be under bpf_devs_lock, it's safe to free and clear the entire offload structure, not only the netdev pointer. __bpf_prog_offload_destroy() will no longer be called multiple times. Suggested-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-31bpf: offload: allow netdev to disappear while verifier is runningJakub Kicinski8-48/+37
To allow verifier instruction callbacks without any extra locking NETDEV_UNREGISTER notification would wait on a waitqueue for verifier to finish. This design decision was made when rtnl lock was providing all the locking. Use the read/write lock instead and remove the workqueue. Verifier will now call into the offload code, so dev_ops are moved to offload structure. Since verifier calls are all under bpf_prog_is_dev_bound() we no longer need static inline implementations to please builds with CONFIG_NET=n. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-31bpf: offload: don't use prog->aux->offload as booleanJakub Kicinski2-2/+5
We currently use aux->offload to indicate that program is bound to a specific device. This forces us to keep the offload structure around even after the device is gone. Add a bool member to struct bpf_prog_aux to indicate if offload was requested. Suggested-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-31bpf: offload: don't require rtnl for dev list manipulationJakub Kicinski1-10/+24
We don't need the RTNL lock for all operations on offload state. We only need to hold it around ndo calls. The device offload initialization doesn't require it. The soon-to-come querying of the offload info will only need it partially. We will also be able to remove the waitqueue in following patches. Use struct rw_semaphore because map offload will require sleeping with the semaphore held for read. Suggested-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-30tools/bpftool: fix bpftool build with bintutils >= 2.9Roman Gushchin6-0/+86
Bpftool build is broken with binutils version 2.29 and later. The cause is commit 003ca0fd2286 ("Refactor disassembler selection") in the binutils repo, which changed the disassembler() function signature. Fix this by adding a new "feature" to the tools/build/features infrastructure and make it responsible for decision which disassembler() function signature to use. Signed-off-by: Roman Gushchin <guro@fb.com> Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-30tools/bpftool: use version from the kernel source treeRoman Gushchin2-11/+5
Bpftool determines it's own version based on the kernel version, which is picked from the linux/version.h header. It's strange to use the version of the installed kernel headers, and makes much more sense to use the version of the actual source tree, where bpftool sources are. Fix this by building kernelversion target and use the resulting string as bpftool version. Example: before: $ bpftool version bpftool v4.14.6 after: $ bpftool version bpftool v4.15.0-rc3 $bpftool version --json {"version":"4.15.0-rc3"} Signed-off-by: Roman Gushchin <guro@fb.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-29net/mlx5: Separate ingress/egress namespaces for each vportGal Pressman4-30/+133
Each vport has its own root flow table for the ACL flow tables and root flow table is per namespace, therefore we should create a namespace for each vport. Fixes: efdc810ba39d ("net/mlx5: Flow steering, Add vport ACL support") Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-29net/mlx5: Fix ingress/egress naming mistakeGal Pressman1-2/+2
The functions names do not represent their actions, switch the mistaken ingress/egress naming. Fixes: fba53f7b5719 ("net/mlx5: Introduce mlx5_flow_steering structure") Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-29net/mlx5e: E-Switch, Use the name of static array instead of its addressGal Pressman1-13/+13
Using the address of a static array is the same as using its name (in this specific use-case), but it's confusing and makes the code less readable. Fixes: 1bd27b11c1df ("net/mlx5: Introduce E-switch QoS management") Fixes: bd77bf1cb595 ("net/mlx5: Add SRIOV VF max rate configuration support") Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-29net/mlx5e: E-Switch, Move send-to-vport rule struct to en_repMark Bloch3-16/+16
Move struct mlx5_esw_sq which keeps send-to-vport rule to from the eswitch code to mlx5e and rename it to better reflect where it belongs Signed-off-by: Mark Bloch <markb@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-29net/mlx5: E-Switch, Create generic header struct to be used by representorsMark Bloch5-44/+88
Now that we don't store type dependent data in struct mlx5_eswitch_rep we can create a generic interface, and representor type. struct mlx5_eswitch_rep will store an array of interfaces, each interface is used by a different representor type. Once we moved to a more generic interface, rdma driver representors can be added and utilize the same mechanism as the Ethernet driver representors use. Signed-off-by: Mark Bloch <markb@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-28strparser: Call sock_owned_by_user_nocheckTom Herbert1-1/+1
strparser wants to check socket ownership without producing any warnings. As indicated by the comment in the code, it is permissible for owned_by_user to return true. Fixes: 43a0c6751a322847 ("strparser: Stream parser for messages") Reported-by: syzbot <syzkaller@googlegroups.com> Reported-and-tested-by: <syzbot+c91c53af67f9ebe599a337d2e70950366153b295@syzkaller.appspotmail.com> Signed-off-by: Tom Herbert <tom@quantonium.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-28sock: Add sock_owned_by_user_nocheckTom Herbert1-0/+5
This allows checking socket lock ownership with producing lockdep warnings. Signed-off-by: Tom Herbert <tom@quantonium.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-28skbuff: in skb_copy_ubufs unclone before releasing zerocopyWillem de Bruijn1-3/+3
skb_copy_ubufs must unclone before it is safe to modify its skb_shared_info with skb_zcopy_clear. Commit b90ddd568792 ("skbuff: skb_copy_ubufs must release uarg even without user frags") ensures that all skbs release their zerocopy state, even those without frags. But I forgot an edge case where such an skb arrives that is cloned. The stack does not build such packets. Vhost/tun skbs have their frags orphaned before cloning. TCP skbs only attach zerocopy state when a frag is added. But if TCP packets can be trimmed or linearized, this might occur. Tracing the code I found no instance so far (e.g., skb_linearize ends up calling skb_zcopy_clear if !skb->data_len). Still, it is non-obvious that no path exists. And it is fragile to rely on this. Fixes: b90ddd568792 ("skbuff: skb_copy_ubufs must release uarg even without user frags") Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-28net/mlx4_en: Change default QoS settingsMoni Shoua3-0/+13
Change the default mapping between TC and TCG as follows: Prio | TC/TCG | from to | (set by FW) (set by SW) ---------+----------------------------------- 0 | 0/0 0/7 1 | 1/0 0/6 2 | 2/0 0/5 3 | 3/0 0/4 4 | 4/0 0/3 5 | 5/0 0/2 6 | 6/0 0/1 7 | 7/0 0/0 These new settings cause that a pause frame for any prio stops traffic for all prios. Fixes: 564c274c3df0 ("net/mlx4_en: DCB QoS support") Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-28net/mlx4_core: Cleanup FMR unmapping flowTariq Toukan1-19/+21
Remove redundant and not essential operations in fmr unmap/free. According to device spec, in FMR unmap it is sufficient to set ownership bit to SW. This allows remapping afterwards. Fixes: 8ad11fb6b073 ("IB/mlx4: Implement FMRs") Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-28net/mlx4_en: RX csum, reorder branchesTariq Toukan1-25/+21
Use early goto commands, and save else branches. This uses less indentations and brackets, making the code more readable. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-28net/mlx4_en: RX csum, remove redundant branches and checksTariq Toukan1-3/+9
Do not check IPv6 bit in cqe status if CONFIG_IPV6 is not enabled. Function check_csum() is reached only with IPv4 or IPv6 set (if enabled), if IPv6 is not set (or is not enabled) it is redundant to test the IPv4 bit. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-28net: sched: don't set extack message in case the qdisc will be createdJiri Pirko1-3/+1
If the qdisc is not found here, it is going to be created. Therefore, this is not an error path. Remove the extack message set and don't confuse user with error message in case the qdisc was created successfully. Fixes: 09215598119e ("net: sched: sch_api: handle generic qdisc errors") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-28tipc: fix hanging poll() for stream socketsParthasarathy Bhuvaragan1-1/+1
In commit 42b531de17d2f6 ("tipc: Fix missing connection request handling"), we replaced unconditional wakeup() with condtional wakeup for clients with flags POLLIN | POLLRDNORM | POLLRDBAND. This breaks the applications which do a connect followed by poll with POLLOUT flag. These applications are not woken when the connection is ESTABLISHED and hence sleep forever. In this commit, we fix it by including the POLLOUT event for sockets in TIPC_CONNECTING state. Fixes: 42b531de17d2f6 ("tipc: Fix missing connection request handling") Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-28net: ethernet: socionext: add AVE ethernet driverKunihiko Hayashi5-0/+1765
The UniPhier platform from Socionext provides the AVE ethernet controller that includes MAC and MDIO bus supporting RGMII/RMII modes. The controller is named AVE. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>