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2019-10-11libbpf: Handle invalid typedef emitted by old GCCAndrii Nakryiko
Old GCC versions are producing invalid typedef for __gnuc_va_list pointing to void. Special-case this and emit valid: typedef __builtin_va_list __gnuc_va_list; Reported-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20191011032901.452042-1-andriin@fb.com
2019-10-11libbpf: Generate more efficient BPF_CORE_READ codeAndrii Nakryiko
Existing BPF_CORE_READ() macro generates slightly suboptimal code. If there are intermediate pointers to be read, initial source pointer is going to be assigned into a temporary variable and then temporary variable is going to be uniformly used as a "source" pointer for all intermediate pointer reads. Schematically (ignoring all the type casts), BPF_CORE_READ(s, a, b, c) is expanded into: ({ const void *__t = src; bpf_probe_read(&__t, sizeof(*__t), &__t->a); bpf_probe_read(&__t, sizeof(*__t), &__t->b); typeof(s->a->b->c) __r; bpf_probe_read(&__r, sizeof(*__r), &__t->c); }) This initial `__t = src` makes calls more uniform, but causes slightly less optimal register usage sometimes when compiled with Clang. This can cascase into, e.g., more register spills. This patch fixes this issue by generating more optimal sequence: ({ const void *__t; bpf_probe_read(&__t, sizeof(*__t), &src->a); /* <-- src here */ bpf_probe_read(&__t, sizeof(*__t), &__t->b); typeof(s->a->b->c) __r; bpf_probe_read(&__r, sizeof(*__r), &__t->c); }) Fixes: 7db3822ab991 ("libbpf: Add BPF_CORE_READ/BPF_CORE_READ_INTO helpers") Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20191011023847.275936-1-andriin@fb.com
2019-10-11xdp: Trivial, fix spelling in function descriptionAnton Ivanov
Fix typo 'boolian' into 'boolean'. Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20191011084303.28418-1-anton.ivanov@cambridgegreys.com
2019-10-11bpf: Fix cast to pointer from integer of different size warningAndrii Nakryiko
Fix "warning: cast to pointer from integer of different size" when casting u64 addr to void *. Fixes: a23740ec43ba ("bpf: Track contents of read-only maps as scalars") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20191011172053.2980619-1-andriin@fb.com
2019-10-11selftests/bpf: Check that flow dissector can be re-attachedJakub Sitnicki
Make sure a new flow dissector program can be attached to replace the old one with a single syscall. Also check that attaching the same program twice is prohibited. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Stanislav Fomichev <sdf@google.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20191011082946.22695-3-jakub@cloudflare.com
2019-10-11flow_dissector: Allow updating the flow dissector program atomicallyJakub Sitnicki
It is currently not possible to detach the flow dissector program and attach a new one in an atomic fashion, that is with a single syscall. Attempts to do so will be met with EEXIST error. This makes updates to flow dissector program hard. Traffic steering that relies on BPF-powered flow dissection gets disrupted while old program has been already detached but the new one has not been attached yet. There is also a window of opportunity to attach a flow dissector to a non-root namespace while updating the root flow dissector, thus blocking the update. Lastly, the behavior is inconsistent with cgroup BPF programs, which can be replaced with a single bpf(BPF_PROG_ATTACH, ...) syscall without any restrictions. Allow attaching a new flow dissector program when another one is already present with a restriction that it can't be the same program. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Stanislav Fomichev <sdf@google.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20191011082946.22695-2-jakub@cloudflare.com
2019-10-11bpf: Align struct bpf_prog_statsEric Dumazet
Do not risk spanning these small structures on two cache lines. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20191011181140.2898-1-edumazet@google.com
2019-10-11mac80211_hwsim: add support for OCBRamon Fontes
OCB (Outside the Context of a BSS) interfaces are the implementation of 802.11p, support that. Signed-off-by: Ramon Fontes <ramonreisfontes@gmail.com> Link: https://lore.kernel.org/r/20191010181307.11821-2-ramonreisfontes@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-11mac80211_hwsim: add more 5GHz channels, 5/10 MHz supportRamon Fontes
These new 5GHz channels and 5/10 MHz support should be available for OCB usage (802.11p). Signed-off-by: Ramon Fontes <ramonreisfontes@gmail.com> Link: https://lore.kernel.org/r/20191010181307.11821-1-ramonreisfontes@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-11mac80211: minstrel_ht: rename prob_ewma to prob_avg, use it for the new averageFelix Fietkau
Reduces per-rate data structure size Signed-off-by: Felix Fietkau <nbd@nbd.name> Link: https://lore.kernel.org/r/20191008171139.96476-3-nbd@nbd.name Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-11mac80211: minstrel_ht: replace rate stats ewma with a better moving averageFelix Fietkau
Rate success probability usually fluctuates a lot under normal conditions. With a simple EWMA, noise and fluctuation can be reduced by increasing the window length, but that comes at the cost of introducing lag on sudden changes. This change replaces the EWMA implementation with a moving average that's designed to significantly reduce lag while keeping a bigger window size by being better at filtering out noise. It is only slightly more expensive than the simple EWMA and still avoids divisions in its calculation. The algorithm is adapted from an implementation intended for a completely different field (stock market trading), where the tradeoff of lag vs noise filtering is equally important. It is based on the "smoothing filter" from http://www.stockspotter.com/files/PredictiveIndicators.pdf. I have adapted it to fixed-point math with some constants so that it uses only addition, bit shifts and multiplication To better make use of the filtering and bigger window size, the update interval time is cut in half. For testing, the algorithm can be reverted to the older one via debugfs Signed-off-by: Felix Fietkau <nbd@nbd.name> Link: https://lore.kernel.org/r/20191008171139.96476-2-nbd@nbd.name Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-11mac80211: minstrel: remove divisions in tx status pathFelix Fietkau
Use a slightly different threshold for downgrading spatial streams to make it easier to calculate without divisions. Slightly reduces CPU overhead. Signed-off-by: Felix Fietkau <nbd@nbd.name> Link: https://lore.kernel.org/r/20191008171139.96476-1-nbd@nbd.name Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-11nl80211: trivial: Remove redundant loopDenis Kenzior
cfg80211_assign_cookie already checks & prevents a 0 from being returned, so the explicit loop is unnecessary. Signed-off-by: Denis Kenzior <denkenz@gmail.com> Link: https://lore.kernel.org/r/20191008164350.2836-1-denkenz@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-10ipvlan: consolidate TSO flags using NETIF_F_ALL_TSOMahesh Bandewar
This will ensure that any new TSO related flags added (which would be part of ALL_TSO mask and IPvlan driver doesn't need to update every time new flag gets added. Signed-off-by: Mahesh Bandewar <maheshb@google.com> Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-11Merge branch 'bpf-romap-known-scalars'Daniel Borkmann
Andrii Nakryiko says: ==================== With BPF maps supporting direct map access (currently, array_map w/ single element, used for global data) that are read-only both from system call and BPF side, it's possible for BPF verifier to track its contents as known constants. Now it's possible for user-space control app to pre-initialize read-only map (e.g., for .rodata section) with user-provided flags and parameters and rely on BPF verifier to detect and eliminate dead code resulting from specific combination of input parameters. v1->v2: - BPF_F_RDONLY means nothing, stick to just map->frozen (Daniel); - stick to passing just offset into map_direct_value_addr (Martin). ==================== Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-10-11selftests/bpf: Add read-only map values propagation testsAndrii Nakryiko
Add tests checking that verifier does proper constant propagation for read-only maps. If constant propagation didn't work, skipp_loop and part_loop BPF programs would be rejected due to BPF verifier otherwise not being able to prove they ever complete. With constant propagation, though, they are succesfully validated as properly terminating loops. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20191009201458.2679171-3-andriin@fb.com
2019-10-11bpf: Track contents of read-only maps as scalarsAndrii Nakryiko
Maps that are read-only both from BPF program side and user space side have their contents constant, so verifier can track referenced values precisely and use that knowledge for dead code elimination, branch pruning, etc. This patch teaches BPF verifier how to do this. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20191009201458.2679171-2-andriin@fb.com
2019-10-10tc-testing: updated pedit test casesRoman Mashak
Added test case for layered IP operation for a single source IP4/IP6 address and a single destination IP4/IP6 address. Signed-off-by: Roman Mashak <mrv@mojatatu.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-10ptp: ptp_dte: use devm_platform_ioremap_resource() to simplify codeYueHaibing
Use devm_platform_ioremap_resource() to simplify the code a bit. This is detected by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09scripts/bpf: Fix xdp_md forward declaration typoAndrii Nakryiko
Fix typo in struct xpd_md, generated from bpf_helpers_doc.py, which is causing compilation warnings for programs using bpf_helpers.h Fixes: 7a387bed47f7 ("scripts/bpf: teach bpf_helpers_doc.py to dump BPF helper definitions") Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191010042534.290562-1-andriin@fb.com
2019-10-09team: call RCU read lock when walking the port_listHangbin Liu
Before reading the team port list, we need to acquire the RCU read lock. Also change list_for_each_entry() to list_for_each_entry_rcu(). v2: repost the patch to net-next and remove fixes flag as this is a cosmetic change. Suggested-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Acked-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09net: stmmac: Remove break after a returnTiezhu Yang
Since break is not useful after a return, remove it. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09net/ethernet: xgmac don't set .driver twiceBen Dooks
Cleanup the .driver setup to just do it once, to avoid the following sparse warning: drivers/net/ethernet/calxeda/xgmac.c:1914:10: warning: Initializer entry defined twice drivers/net/ethernet/calxeda/xgmac.c:1920:10: also defined here Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09Merge branch 'net-smc-improve-termination-handling'Jakub Kicinski
Karsten Graul says: ==================== net/smc: improve termination handling First set of patches to improve termination handling. ==================== Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09net/smc: improve close of terminated socketUrsula Braun
Make sure a terminated SMC socket reaches the CLOSED state. Even if sending of close flags fails, change the socket state to the intended state to avoid dangling sockets not reaching the CLOSED state. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09net/smc: no new connections on disappearing devicesUrsula Braun
Add a "going_away" indication to ISM devices and IB ports and avoid creation of new connections on such disappearing devices. And do not handle ISM events if ISM device is disappearing. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09net/smc: increase device refcount for added link groupUrsula Braun
SMCD link groups belong to certain ISM-devices and SMCR link group links belong to certain IB-devices. Increase the refcount for these devices, as long as corresponding link groups exist. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09net/smc: separate locks for SMCD and SMCR link group listsUrsula Braun
This patch introduces separate locks for the split SMCD and SMCR link group lists. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09net/smc: separate SMCD and SMCR link group listsUrsula Braun
Currently SMCD and SMCR link groups are maintained in one list. To facilitate abnormal termination handling they are split into a separate list for SMCR link groups and separate lists for SMCD link groups per SMCD device. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09net: stmmac: dwmac-mediatek: fix wrong delay value issue when resume backBiao Huang
mac_delay value will be divided by 550/170 in mt2712_delay_ps2stage(), which is invoked at the beginning of mt2712_set_delay(), and the value should be restored at the end of mt2712_set_delay(). Or, mac_delay will be divided again when invoking mt2712_set_delay() when resume back. So, add mt2712_delay_stage2ps() to mt2712_set_delay() to recovery the original mac_delay value. Signed-off-by: Biao Huang <biao.huang@mediatek.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09DIM: fix dim.h kernel-doc and headersRandy Dunlap
Lots of fixes to kernel-doc in structs, enums, and functions. Also add header files that are being used but not yet #included. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Yamin Friedman <yaminf@mellanox.com> Cc: Tal Gilboa <talgi@mellanox.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09Merge branch 'sctp-add-some-missing-events-from-rfc5061'Jakub Kicinski
Xin Long says: ==================== There are 4 events defined in rfc5061 missed in linux sctp: SCTP_ADDR_ADDED, SCTP_ADDR_REMOVED, SCTP_ADDR_MADE_PRIM and SCTP_SEND_FAILED_EVENT. This patchset is to add them up. ==================== Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09sctp: add SCTP_SEND_FAILED_EVENT eventXin Long
This patch is to add a new event SCTP_SEND_FAILED_EVENT described in rfc6458#section-6.1.11. It's a update of SCTP_SEND_FAILED event: struct sctp_sndrcvinfo ssf_info is replaced with struct sctp_sndinfo ssfe_info in struct sctp_send_failed_event. SCTP_SEND_FAILED is being deprecated, but we don't remove it in this patch. Both are being processed in sctp_datamsg_destroy() when the corresp event flag is set. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09sctp: add SCTP_ADDR_MADE_PRIM eventXin Long
sctp_ulpevent_nofity_peer_addr_change() would be called in sctp_assoc_set_primary() to send SCTP_ADDR_MADE_PRIM event when this transport is set to the primary path of the asoc. This event is described in rfc6458#section-6.1.2: SCTP_ADDR_MADE_PRIM: This address has now been made the primary destination address. This notification is provided whenever an address is made primary. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09sctp: add SCTP_ADDR_REMOVED eventXin Long
sctp_ulpevent_nofity_peer_addr_change() is called in sctp_assoc_rm_peer() to send SCTP_ADDR_REMOVED event when this transport is removed from the asoc. This event is described in rfc6458#section-6.1.2: SCTP_ADDR_REMOVED: The address is no longer part of the association. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09sctp: add SCTP_ADDR_ADDED eventXin Long
A helper sctp_ulpevent_nofity_peer_addr_change() will be extracted to make peer_addr_change event and enqueue it, and the helper will be called in sctp_assoc_add_peer() to send SCTP_ADDR_ADDED event. This event is described in rfc6458#section-6.1.2: SCTP_ADDR_ADDED: The address is now part of the association. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09libbpf: Fix passing uninitialized bytes to setsockoptIlya Maximets
'struct xdp_umem_reg' has 4 bytes of padding at the end that makes valgrind complain about passing uninitialized stack memory to the syscall: Syscall param socketcall.setsockopt() points to uninitialised byte(s) at 0x4E7AB7E: setsockopt (in /usr/lib64/libc-2.29.so) by 0x4BDE035: xsk_umem__create@@LIBBPF_0.0.4 (xsk.c:172) Uninitialised value was created by a stack allocation at 0x4BDDEBA: xsk_umem__create@@LIBBPF_0.0.4 (xsk.c:140) Padding bytes appeared after introducing of a new 'flags' field. memset() is required to clear them. Fixes: 10d30e301732 ("libbpf: add flags to umem config") Signed-off-by: Ilya Maximets <i.maximets@ovn.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20191009164929.17242-1-i.maximets@ovn.org
2019-10-09Merge branch 'btf2c-padding'Alexei Starovoitov
Andrii Nakryiko says: ==================== Fix BTF-to-C logic of handling padding at the end of a struct. Fix existing test that should have captured this. Also move test_btf_dump into a test_progs test to leverage common infrastructure. ==================== Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-10-09selftests/bpf: Fix btf_dump padding test caseAndrii Nakryiko
Existing padding test case for btf_dump has a good test that was supposed to test padding generation at the end of a struct, but its expected output was specified incorrectly. Fix this. Fixes: 2d2a3ad872f8 ("selftests/bpf: add btf_dump BTF-to-C conversion tests") Reported-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191008231009.2991130-4-andriin@fb.com
2019-10-09selftests/bpf: Convert test_btf_dump into test_progs testAndrii Nakryiko
Convert test_btf_dump into a part of test_progs, instead of a stand-alone test binary. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191008231009.2991130-3-andriin@fb.com
2019-10-09libbpf: Fix struct end padding in btf_dumpAndrii Nakryiko
Fix a case where explicit padding at the end of a struct is necessary due to non-standart alignment requirements of fields (which BTF doesn't capture explicitly). Fixes: 351131b51c7a ("libbpf: add btf_dump API for BTF-to-C conversion") Reported-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Tested-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20191008231009.2991130-2-andriin@fb.com
2019-10-09net: stmmac: add flexible PPS to dwmac 4.10aAntonio Borneo
All the registers and the functionalities used in the callback dwmac5_flex_pps_config() are common between dwmac 4.10a [1] and 5.00a [2]. Reuse the same callback for dwmac 4.10a too. Tested on STM32MP15x, based on dwmac 4.10a. [1] DWC Ethernet QoS Databook 4.10a October 2014 [2] DWC Ethernet QoS Databook 5.00a September 2017 Signed-off-by: Antonio Borneo <antonio.borneo@st.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09Merge tag 'spi-ptp-api' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull in a dependency for Vladimir's work on more precise packet time stamping. Mark Brown says: ==================== spi: Add a PTP API For detailed timestamping of operations. ==================== Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08Revert "tun: call dev_get_valid_name() before register_netdevice()"Eric Dumazet
This reverts commit 0ad646c81b2182f7fa67ec0c8c825e0ee165696d. As noticed by Jakub, this is no longer needed after commit 11fc7d5a0a2d ("tun: fix memory leak in error path") This no longer exports dev_get_valid_name() for the exclusive use of tun driver. Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08net: tipc: prepare attrs in __tipc_nl_compat_dumpit()Jiri Pirko
__tipc_nl_compat_dumpit() calls tipc_nl_publ_dump() which expects the attrs to be available by genl_dumpit_info(cb)->attrs. Add info struct and attr parsing in compat dumpit function. Reported-by: syzbot+8d37c50ffb0f52941a5e@syzkaller.appspotmail.com Fixes: 057af7071344 ("net: tipc: have genetlink code to parse the attrs during dumpit") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08net: genetlink: always allocate separate attrs for dumpit opsJiri Pirko
Individual dumpit ops (start, dumpit, done) are locked by genl_lock if !family->parallel_ops. However, multiple genl_family_rcv_msg_dumpit() calls may in in flight in parallel. Each has a separate struct genl_dumpit_info allocated but they share the same family->attrbuf. Fix this by allocating separate memory for attrs for dumpit ops, for non-parallel_ops (for parallel_ops it is done already). Reported-by: syzbot+495688b736534bb6c6ad@syzkaller.appspotmail.com Reported-by: syzbot+ff59dc711f2cff879a05@syzkaller.appspotmail.com Reported-by: syzbot+dbe02e13bcce52bcf182@syzkaller.appspotmail.com Reported-by: syzbot+9cb7edb2906ea1e83006@syzkaller.appspotmail.com Fixes: bf813b0afeae ("net: genetlink: parse attrs and store in contect info struct during dumpit") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08Merge branch 'hns3-next' into net-nextJakub Kicinski
Huazhong Tan says: ==================== This patch-set includes some new features for the HNS3 ethernet controller driver. [patch 01/06] adds support for configuring VF link status on the host. [patch 02/06] adds support for configuring VF spoof check. [patch 03/06] adds support for configuring VF trust. [patch 04/06] adds support for configuring VF bandwidth on the host. [patch 05/06] adds support for configuring VF MAC on the host. [patch 06/06] adds support for tx-scatter-gather-fraglist. ==================== Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08net: hns3: support tx-scatter-gather-fraglist featureYunsheng Lin
The hardware supports up to 8 TX BD for non-tso skb and up to 63 TX BD for TSO skb. Currently, the hns3 driver supports RX skb with fraglist when HW GRO is enabled, when the stack forwards a RX skb with fraglist, the stack need to linearize the skb before sending to other interface without TX fraglist support. This patch adds support for TX fraglist. The performance increases from 1 GByte to 1.5 GByte for one iperf TCP stream during forwarding test after this patch. BTW, the minimum BD number of ring should be updated to 72 for supporting TX fraglist. This patch also changes the error handling of some function that called by hns3_fill_desc, which returns BD num when there is no error, change some macro to more meaningful name. Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08net: hns3: add support for configuring VF MAC from the hostHuazhong Tan
This patch adds support of configuring VF MAC from the host for the HNS3 driver. BTW, the parameter init in the hns3_init_mac_addr is unnecessary now, since the MAC address will not read from NCL_CONFIG when doing reset, so it should be removed, otherwise it will affect VF's MAC address initialization. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08net: hns3: add support for configuring bandwidth of VF on the hostYonglong Liu
This patch adds support for configuring bandwidth of VF on the host for HNS3 drivers. Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
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