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2017-06-04qed: VF XDP supportMintz, Yuval
The final addition on the qed front - - VFs would now require their PFs to provide multiple CIDs - Based on the availability of connections from PF, determine whether XDP is feasible and share it with qede via dev_info. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04qed: Multiple qzone queues for VFsMintz, Yuval
This adds the infrastructure for supporting VFs that want to open multiple transmission queues on the same queue-zone. At this point, there are no VFs that actually request this functionality, but later patches would remedy that. a. VF and PF would communicate the capability during ACQUIRE; Legacy VFs would continue on behaving as they do today b. PF would communicate number of supported CIDs to the VF and would enforce said limitation c. Whenever VF passes a request for a given queue configuration it would also pass an associated index within said queue-zone Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04qed*: L2 interface to use the SB structures directlyMintz, Yuval
Part of an effort of a cleaner seperation between qed and the protocol drivers, the L2 interface is to use the SB structure for initialization purposes opaquely. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04skbuff: return -EMSGSIZE in skb_to_sgvec to prevent overflowJason A. Donenfeld
This is a defense-in-depth measure in response to bugs like 4d6fa57b4dab ("macsec: avoid heap overflow in skb_to_sgvec"). There's not only a potential overflow of sglist items, but also a stack overflow potential, so we fix this by limiting the amount of recursion this function is allowed to do. Not actually providing a bounded base case is a future disaster that we can easily avoid here. As a small matter of house keeping, we take this opportunity to move the documentation comment over the actual function the documentation is for. While this could be implemented by using an explicit stack of skbuffs, when implementing this, the function complexity increased considerably, and I don't think such complexity and bloat is actually worth it. So, instead I built this and tested it on x86, x86_64, ARM, ARM64, and MIPS, and measured the stack usage there. I also reverted the recent MIPS changes that give it a separate IRQ stack, so that I could experience some worst-case situations. I found that limiting it to 24 layers deep yielded a good stack usage with room for safety, as well as being much deeper than any driver actually ever creates. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Cc: David Howells <dhowells@redhat.com> Cc: Sabrina Dubroca <sd@queasysnail.net> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04net: ping: do not abuse udp_poll()Eric Dumazet
Alexander reported various KASAN messages triggered in recent kernels The problem is that ping sockets should not use udp_poll() in the first place, and recent changes in UDP stack finally exposed this old bug. Fixes: c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP socket kind") Fixes: 6d0bfe226116 ("net: ipv6: Add IPv6 support to the ping socket.") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Sasha Levin <alexander.levin@verizon.com> Cc: Solar Designer <solar@openwall.com> Cc: Vasiliy Kulikov <segoon@openwall.com> Cc: Lorenzo Colitti <lorenzo@google.com> Acked-By: Lorenzo Colitti <lorenzo@google.com> Tested-By: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04bpf: update perf event helper functions documentationTeng Qin
This commit updates documentation of the bpf_perf_event_output and bpf_perf_event_read helpers to match their implementation. Signed-off-by: Teng Qin <qinteng@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04perf, bpf: Add BPF support to all perf_event typesAlexei Starovoitov
Allow BPF_PROG_TYPE_PERF_EVENT program types to attach to all perf_event types, including HW_CACHE, RAW, and dynamic pmu events. Only tracepoint/kprobe events are treated differently which require BPF_PROG_TYPE_TRACEPOINT/BPF_PROG_TYPE_KPROBE program types accordingly. Also add support for reading all event counters using bpf_perf_event_read() helper. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04neigh: Really delete an arp/neigh entry on "ip neigh delete" or "arp -d"Sowmini Varadhan
The command # arp -s 62.2.0.1 a:b:c:d:e:f dev eth2 adds an entry like the following (listed by "arp -an") ? (62.2.0.1) at 0a:0b:0c:0d:0e:0f [ether] PERM on eth2 but the symmetric deletion command # arp -i eth2 -d 62.2.0.1 does not remove the PERM entry from the table, and instead leaves behind ? (62.2.0.1) at <incomplete> on eth2 The reason is that there is a refcnt of 1 for the arp_tbl itself (neigh_alloc starts off the entry with a refcnt of 1), thus the neigh_release() call from arp_invalidate() will (at best) just decrement the ref to 1, but will never actually free it from the table. To fix this, we need to do something like neigh_forced_gc: if the refcnt is 1 (i.e., on the table's ref), remove the entry from the table and free it. This patch refactors and shares common code between neigh_forced_gc and the newly added neigh_remove_one. A similar issue exists for IPv6 Neighbor Cache entries, and is fixed in a similar manner by this patch. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Reviewed-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04net: dsa: Initialize all CPU and enabled ports masks in dsa_ds_parse()Florian Fainelli
There was no reason for duplicating the code that initializes ds->enabled_port_mask in both dsa_parse_ports_dn() and dsa_parse_ports(), instead move this to dsa_ds_parse() which is early enough before ops->setup() has run. While at it, we can now make dsa_is_cpu_port() check ds->cpu_port_mask which is a step towards being multi-CPU port capable. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04net/sched: cls_flower: add support for matching on ip tos and ttlOr Gerlitz
Benefit from the support of ip header fields dissection and allow users to set rules matching on ipv4 tos and ttl or ipv6 traffic-class and hoplimit. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04net/flow_dissector: add support for dissection of misc ip header fieldsOr Gerlitz
Add support for dissection of ip tos and ttl and ipv6 traffic-class and hoplimit. Both are dissected into the same struct. Uses similar call to ip dissection function as with tcp, arp and others. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04[media] cec: rename MEDIA_CEC_NOTIFIER to CEC_NOTIFIERHans Verkuil
This config option is strictly speaking independent of the media subsystem since it can be used by drm as well. Besides, it looks odd when drivers select CEC_CORE and MEDIA_CEC_NOTIFIER, that's inconsistent naming. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-04Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: "For the most part this is just a minor -rc cycle for the rdma subsystem. Even given that this is all of the -rc patches since the merge window closed, it's still only about 25 patches: - Multiple i40iw, nes, iw_cxgb4, hfi1, qib, mlx4, mlx5 fixes - A few upper layer protocol fixes (IPoIB, iSER, SRP) - A modest number of core fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (26 commits) RDMA/SA: Fix kernel panic in CMA request handler flow RDMA/umem: Fix missing mmap_sem in get umem ODP call RDMA/core: not to set page dirty bit if it's already set. RDMA/uverbs: Declare local function static and add brackets to sizeof RDMA/netlink: Reduce exposure of RDMA netlink functions RDMA/srp: Fix NULL deref at srp_destroy_qp() RDMA/IPoIB: Limit the ipoib_dev_uninit_default scope RDMA/IPoIB: Replace netdev_priv with ipoib_priv for ipoib_get_link_ksettings RDMA/qedr: add null check before pointer dereference RDMA/mlx5: set UMR wqe fence according to HCA cap net/mlx5: Define interface bits for fencing UMR wqe RDMA/mlx4: Fix MAD tunneling when SRIOV is enabled RDMA/qib,hfi1: Fix MR reference count leak on write with immediate RDMA/hfi1: Defer setting VL15 credits to link-up interrupt RDMA/hfi1: change PCI bar addr assignments to Linux API functions RDMA/hfi1: fix array termination by appending NULL to attr array RDMA/iw_cxgb4: fix the calculation of ipv6 header size RDMA/iw_cxgb4: calculate t4_eq_status_entries properly RDMA/iw_cxgb4: Avoid touch after free error in ARP failure handlers RDMA/nes: ACK MPA Reply frame ...
2017-06-02Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "15 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: scripts/gdb: make lx-dmesg command work (reliably) mm: consider memblock reservations for deferred memory initialization sizing mm/hugetlb: report -EHWPOISON not -EFAULT when FOLL_HWPOISON is specified mlock: fix mlock count can not decrease in race condition mm/migrate: fix refcount handling when !hugepage_migration_supported() dax: fix race between colliding PMD & PTE entries mm: avoid spurious 'bad pmd' warning messages mm/page_alloc.c: make sure OOM victim can try allocations with no watermarks once pcmcia: remove left-over %Z format slub/memcg: cure the brainless abuse of sysfs attributes initramfs: fix disabling of initramfs (and its compression) mm: clarify why we want kmalloc before falling backto vmallock frv: declare jiffies to be located in the .data section include/linux/gfp.h: fix ___GFP_NOLOCKDEP value ksm: prevent crash after write_protect_page fails
2017-06-02mm: consider memblock reservations for deferred memory initialization sizingMichal Hocko
We have seen an early OOM killer invocation on ppc64 systems with crashkernel=4096M: kthreadd invoked oom-killer: gfp_mask=0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=7, order=0, oom_score_adj=0 kthreadd cpuset=/ mems_allowed=7 CPU: 0 PID: 2 Comm: kthreadd Not tainted 4.4.68-1.gd7fe927-default #1 Call Trace: dump_stack+0xb0/0xf0 (unreliable) dump_header+0xb0/0x258 out_of_memory+0x5f0/0x640 __alloc_pages_nodemask+0xa8c/0xc80 kmem_getpages+0x84/0x1a0 fallback_alloc+0x2a4/0x320 kmem_cache_alloc_node+0xc0/0x2e0 copy_process.isra.25+0x260/0x1b30 _do_fork+0x94/0x470 kernel_thread+0x48/0x60 kthreadd+0x264/0x330 ret_from_kernel_thread+0x5c/0xa4 Mem-Info: active_anon:0 inactive_anon:0 isolated_anon:0 active_file:0 inactive_file:0 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5 slab_unreclaimable:73 mapped:0 shmem:0 pagetables:0 bounce:0 free:0 free_pcp:0 free_cma:0 Node 7 DMA free:0kB min:0kB low:0kB high:0kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:52428800kB managed:110016kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:320kB slab_unreclaimable:4672kB kernel_stack:1152kB pagetables:0kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 0 Node 7 DMA: 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB 0*8192kB 0*16384kB = 0kB 0 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 819200 pages RAM 0 pages HighMem/MovableOnly 817481 pages reserved 0 pages cma reserved 0 pages hwpoisoned the reason is that the managed memory is too low (only 110MB) while the rest of the the 50GB is still waiting for the deferred intialization to be done. update_defer_init estimates the initial memoty to initialize to 2GB at least but it doesn't consider any memory allocated in that range. In this particular case we've had Reserving 4096MB of memory at 128MB for crashkernel (System RAM: 51200MB) so the low 2GB is mostly depleted. Fix this by considering memblock allocations in the initial static initialization estimation. Move the max_initialise to reset_deferred_meminit and implement a simple memblock_reserved_memory helper which iterates all reserved blocks and sums the size of all that start below the given address. The cumulative size is than added on top of the initial estimation. This is still not ideal because reset_deferred_meminit doesn't consider holes and so reservation might be above the initial estimation whihch we ignore but let's make the logic simpler until we really need to handle more complicated cases. Fixes: 3a80a7fa7989 ("mm: meminit: initialise a subset of struct pages if CONFIG_DEFERRED_STRUCT_PAGE_INIT is set") Link: http://lkml.kernel.org/r/20170531104010.GI27783@dhcp22.suse.cz Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Mel Gorman <mgorman@suse.de> Tested-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: <stable@vger.kernel.org> [4.2+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-06-02mm/hugetlb: report -EHWPOISON not -EFAULT when FOLL_HWPOISON is specifiedJames Morse
KVM uses get_user_pages() to resolve its stage2 faults. KVM sets the FOLL_HWPOISON flag causing faultin_page() to return -EHWPOISON when it finds a VM_FAULT_HWPOISON. KVM handles these hwpoison pages as a special case. (check_user_page_hwpoison()) When huge pages are involved, this doesn't work so well. get_user_pages() calls follow_hugetlb_page(), which stops early if it receives VM_FAULT_HWPOISON from hugetlb_fault(), eventually returning -EFAULT to the caller. The step to map this to -EHWPOISON based on the FOLL_ flags is missing. The hwpoison special case is skipped, and -EFAULT is returned to user-space, causing Qemu or kvmtool to exit. Instead, move this VM_FAULT_ to errno mapping code into a header file and use it from faultin_page() and follow_hugetlb_page(). With this, KVM works as expected. This isn't a problem for arm64 today as we haven't enabled MEMORY_FAILURE, but I can't see any reason this doesn't happen on x86 too, so I think this should be a fix. This doesn't apply earlier than stable's v4.11.1 due to all sorts of cleanup. [james.morse@arm.com: add vm_fault_to_errno() call to faultin_page()] suggested. Link: http://lkml.kernel.org/r/20170525171035.16359-1-james.morse@arm.com [akpm@linux-foundation.org: coding-style fixes] Link: http://lkml.kernel.org/r/20170524160900.28786-1-james.morse@arm.com Signed-off-by: James Morse <james.morse@arm.com> Acked-by: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com> Cc: <stable@vger.kernel.org> [4.11.1+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-06-02frv: declare jiffies to be located in the .data sectionMatthias Kaehlcke
Commit 7c30f352c852 ("jiffies.h: declare jiffies and jiffies_64 with ____cacheline_aligned_in_smp") removed a section specification from the jiffies declaration that caused conflicts on some platforms. Unfortunately this change broke the build for frv: kernel/built-in.o: In function `__do_softirq': (.text+0x6460): relocation truncated to fit: R_FRV_GPREL12 against symbol `jiffies' defined in *ABS* section in .tmp_vmlinux1 kernel/built-in.o: In function `__do_softirq': (.text+0x6574): relocation truncated to fit: R_FRV_GPREL12 against symbol `jiffies' defined in *ABS* section in .tmp_vmlinux1 kernel/built-in.o: In function `pwq_activate_delayed_work': workqueue.c:(.text+0x15b9c): relocation truncated to fit: R_FRV_GPREL12 against symbol `jiffies' defined in *ABS* section in .tmp_vmlinux1 ... Add __jiffy_arch_data to the declaration of jiffies and use it on frv to include the section specification. For all other platforms __jiffy_arch_data (currently) has no effect. Fixes: 7c30f352c852 ("jiffies.h: declare jiffies and jiffies_64 with ____cacheline_aligned_in_smp") Link: http://lkml.kernel.org/r/20170516221333.177280-1-mka@chromium.org Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: David Howells <dhowells@redhat.com> Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-06-02include/linux/gfp.h: fix ___GFP_NOLOCKDEP valueMichal Hocko
Igor Stoppa has noticed that __GFP_NOLOCKDEP can use a lower bit. At the time commit 7e7844226f10 ("lockdep: allow to disable reclaim lockup detection") was written we still had __GFP_OTHER_NODE but I have removed it in commit 41b6167e8f74 ("mm: get rid of __GFP_OTHER_NODE") and forgot to lower the bit value. The current value is outside of __GFP_BITS_SHIFT so it cannot be used actually. Fixes: 7e7844226f10 ("lockdep: allow to disable reclaim lockup detection") Signed-off-by: Michal Hocko <mhocko@suse.com> Reported-by: Igor Stoppa <igor.stoppa@nokia.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-06-02Merge tag 'drm-dp-quirk-for-v4.12-rc4' of ↵Linus Torvalds
git://people.freedesktop.org/~airlied/linux Pull drm displayport quirk support: "DP quirk for usb c dongles. As mentioned I have a separate request for fixing a regression, but also keeping the broken hw working, for certain USB-C DP adapters they require a minimised n/m parameters, but an attempt to do this generically has failed, we need to quirk these specific adapters. However doing it generically regressed some eDP panels. This pull adds the infrastructure and a quirk for the adapter" * tag 'drm-dp-quirk-for-v4.12-rc4' of git://people.freedesktop.org/~airlied/linux: drm/i915: Detect USB-C specific dongles before reducing M and N drm/dp: start a DPCD based DP sink/branch device quirk database drm/i915: use drm DP helper to read DPCD desc drm/dp: add helper for reading DP sink/branch device desc from DPCD
2017-06-02sctp: merge sctp_stream_new and sctp_stream_initXin Long
Since last patch, sctp doesn't need to alloc memory for asoc->stream any more. sctp_stream_new and sctp_stream_init both are used to alloc memory for stream.in or stream.out, and their names are also confusing. This patch is to merge them into sctp_stream_init, and only pass stream and streamcnt parameters into it, instead of the whole asoc. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-02sctp: define the member stream as an object instead of pointer in asocXin Long
As Marcelo's suggestion, stream is a fixed size member of asoc and would not grow with more streams. To avoid an allocation for it, this patch is to define it as an object instead of pointer and update the places using it, also create sctp_stream_update() called in sctp_assoc_update() to migrate the stream info from one stream to another. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-02Merge branch '40GbE' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== 40GbE Intel Wired LAN Driver Updates 2017-06-01 This series contains updates to i40e, i40evf and the "new" AVF virtchnl. This is the introduction of the Intel(R) Ethernet Adaptive Virtual Function driver code and device ID, as presented at the NetDEV 1.2 conference in 2016. http://netdevconf.org/1.2/session.html?anjali-singhai The idea is to convert the interface between the i40evf driver and the parent i40e PF driver to be generic, as the i40evf driver should in the future be able to run on top of other Intel PF drivers, and negotiate any features beyond a "base expected" set. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-02qed: Add support for changing iSCSI macMintz, Yuval
Enhance API between qedi and qed, allowing qedi to inform device's firmware when the iSCSI mac is to be changed. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-02qed: Support NVM-image reading APIMintz, Yuval
Storage drivers require images from the nvram in boot-from-SAN scenarios. This provides the necessary API between qed and the protocol drivers to perform such reads. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-02qed: Share additional information with qedfMintz, Yuval
Share several new tidbits with qedf: - wwpn & wwnn - Absolute pf-id [this one is actually meant for qedi as well] - Number of available CQs While we're at it, now that qedf will be aware of the available CQs we can add some validation on the inputs it provides. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-02team: add macro MODULE_ALIAS_TEAM_MODE for team mode aliasZhang Shengju
Add a new macro MODULE_ALIAS_TEAM_MODE to unify and simplify the declaration of team mode alias. Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-01Merge tag 'nfsd-4.12-1' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
Pull nfsd fixes from Bruce Fields: "Revert patch accidentally included in the merge window pull request, and fix a crash that was likely a result of buggy client behavior" * tag 'nfsd-4.12-1' of git://linux-nfs.org/~bfields/linux: nfsd4: fix null dereference on replay nfsd: Revert "nfsd: check for oversized NFSv2/v3 arguments"
2017-06-01net: dsa: remove dsa_uses_tagged_protocolVivien Didelot
Since dev->dsa_ptr is a pointer to a dsa_switch_tree, there is no need to have another inline helper just to check rcv. Remove dsa_uses_tagged_protocol and check dsa_ptr && dsa_ptr->rcv together at the same time. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-01net: dsa: comment hot path requirementsVivien Didelot
The DSA layer uses inline helpers and copy of the tagging functions for faster access in hot path. Add comments to detail that. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-01virtchnl: Add compile time static asserts to validate structure sizesSridhar Samudrala
This uses preprocessor tricks to make sure that a divide by zero occurs if a struct changes size outside the expected number of bytes. Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01virtchnl: Add pad fields to a couple of structuresSridhar Samudrala
This removes holes and makes structure sizes consistent across 32 and 64 bit builds. Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01i40e/virtchnl: move function to virtchnlJesse Brandeburg
This moves a function that is needed for the virtchnl interface from the i40e PF driver over to the virtchnl.h file. It was manually verified that the function in question is unchanged except for the function name and function header, which explains the slight difference in the number of lines removed/added. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01virtchnl: finish conversion to virtchnl interfaceJesse Brandeburg
This patch implements the complete version of the virtchnl.h file with final renames, and fixes the related code in i40e and i40evf. It also expands comments, and adds details on the usage of certain fields. In addition, due to the changes a couple of casts are needed to prevent errors found by sparse after renaming some fields. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01RDMA/SA: Fix kernel panic in CMA request handler flowMajd Dibbiny
Commit 9fdca4da4d8c (IB/SA: Split struct sa_path_rec based on IB and ROCE specific fields) moved the service_id to be specific attribute for IB and OPA SA Path Record, and thus wasn't assigned for RoCE. This caused to the following kernel panic in the CMA request handler flow: [ 27.074594] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [ 27.074731] IP: __radix_tree_lookup+0x1d/0xe0 ... [ 27.075356] Workqueue: ib_cm cm_work_handler [ib_cm] [ 27.075401] task: ffff88022e3b8000 task.stack: ffffc90001298000 [ 27.075449] RIP: 0010:__radix_tree_lookup+0x1d/0xe0 ... [ 27.075979] Call Trace: [ 27.076015] radix_tree_lookup+0xd/0x10 [ 27.076055] cma_ps_find+0x59/0x70 [rdma_cm] [ 27.076097] cma_id_from_event+0xd2/0x470 [rdma_cm] [ 27.076144] ? ib_init_ah_from_path+0x39a/0x590 [ib_core] [ 27.076193] cma_req_handler+0x25/0x480 [rdma_cm] [ 27.076237] cm_process_work+0x25/0x120 [ib_cm] [ 27.076280] ? cm_get_bth_pkey.isra.62+0x3c/0xa0 [ib_cm] [ 27.076350] cm_req_handler+0xb03/0xd40 [ib_cm] [ 27.076430] ? sched_clock_cpu+0x11/0xb0 [ 27.076478] cm_work_handler+0x194/0x1588 [ib_cm] [ 27.076525] process_one_work+0x160/0x410 [ 27.076565] worker_thread+0x137/0x4a0 [ 27.076614] kthread+0x112/0x150 [ 27.076684] ? max_active_store+0x60/0x60 [ 27.077642] ? kthread_park+0x90/0x90 [ 27.078530] ret_from_fork+0x2c/0x40 This patch moves it back to the common SA Path Record structure and removes the redundant setter and getter. Tested on Connect-IB and Connect-X4 in Infiniband and RoCE respectively. Fixes: 9fdca4da4d8c (IB/SA: Split struct sa_path_rec based on IB ands ROCE specific fields) Signed-off-by: Majd Dibbiny <majd@mellanox.com> Reviewed-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01RDMA/netlink: Reduce exposure of RDMA netlink functionsLeon Romanovsky
RDMA netlink is part of ib_core, hence ibnl_chk_listeners(), ibnl_init() and ibnl_cleanup() don't need to be published in public header file. Let's remove EXPORT_SYMBOL from ibnl_chk_listeners() and move all these functions to private header file. CC: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01i40evf/virtchnl: whitespace cleanupsJesse Brandeburg
This patch fixes up a bunch of whitespace issues introduced by the previous automated change of name from i40e to virtchnl. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01i40e/virtchnl: refactor code for validate checksJesse Brandeburg
This change updates the arguments passed to the validate function and fixes the caller, as well as uses the new return values added to virtchnl.h One other minor tweak, remove a duplicate set to zero of valid_len. This is in preparation for moving the function to virtchnl.h. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01virtchnl: convert to new macrosJesse Brandeburg
As part of the conversion, change the arguments to VF_IS_V1[01] macros and move them to virtchnl.h Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01virtchnl: rename i40e to generic virtchnlJesse Brandeburg
This morphs all the i40e and i40evf references to/in virtchnl.h to be generic, using only automated methods. Updates all the callers to use the new names. A followup patch provides separate clean ups for messy line conversions from these "automatic" changes, to make them more reviewable. Was executed with the following sed script: sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_client.c sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_prototype.h sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40e_common.c sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40e_prototype.h sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf.h sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf_client.c sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf_main.c sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c sed -i -f transform_script include/linux/avf/virtchnl.h transform_script: ----8<---- s/I40E_VIRTCHNL_SUPPORTED_QTYPES/SAVE_ME_SUPPORTED_QTYPES/g s/I40E_VIRTCHNL_VF_CAP/SAVE_ME_VF_CAP/g s/I40E_VIRTCHNL_/VIRTCHNL_/g s/i40e_virtchnl_/virtchnl_/g s/i40e_vfr_/virtchnl_vfr_/g s/I40E_VFR_/VIRTCHNL_VFR_/g s/VIRTCHNL_OP_ADD_ETHER_ADDRESS/VIRTCHNL_OP_ADD_ETH_ADDR/g s/VIRTCHNL_OP_DEL_ETHER_ADDRESS/VIRTCHNL_OP_DEL_ETH_ADDR/g s/VIRTCHNL_OP_FCOE/VIRTCHNL_OP_RSVD/g s/SAVE_ME_SUPPORTED_QTYPES/I40E_VIRTCHNL_SUPPORTED_QTYPES/g s/SAVE_ME_VF_CAP/I40E_VIRTCHNL_VF_CAP/g ----8<---- Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01net/mlx5: Define interface bits for fencing UMR wqeMax Gurtovoy
HW can implement UMR wqe re-transmission in various ways. Thus, add HCA cap to distinguish the needed fence for UMR to make sure that the wqe wouldn't fail on mkey checks. Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Acked-by: Leon Romanovsky <leon@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01i40e/i40evf: create and use new unified header fileJesse Brandeburg
This moves a header for i40evf to include/linux/avf/virtchnl.h. The directory name AVF is an acronym for the Intel(R) Adaptive Virtual Function. This first step creates the new file, which is a rename of drivers/net/ethernet/intel/i40evf/i40e_virtchnl.h to include/linux/avf/virtchnl.h, and should show up in git as a rename when using git log --follow. To keep things building after the move, the changes to the i40evf driver are made to point to the new include file location. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01net-next: stmmac: Add dwmac-sun8iLABBE Corentin
The dwmac-sun8i is a heavy hacked version of stmmac hardware by allwinner. In fact the only common part is the descriptor management and the first register function. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-01net-next: stmmac: add optional setup functionLABBE Corentin
Instead of adding more ifthen logic for adding a new mac_device_info setup function, it is easier to add a function pointer to the function needed. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds
Pull SCSI target fixes from Nicholas Bellinger: "Here are the target-pending fixes for v4.12-rc4: - ibmviscsis ABORT_TASK handling fixes that missed the v4.12 merge window. (Bryant Ly and Michael Cyr) - Re-add a target-core check enforcing WRITE overflow reject that was relaxed in v4.3, to avoid unsupported iscsi-target immediate data overflow. (nab) - Fix a target-core-user OOPs during device removal. (MNC + Bryant Ly) - Fix a long standing iscsi-target potential issue where kthread exit did not wait for kthread_should_stop(). (Jiang Yi) - Fix a iscsi-target v3.12.y regression OOPs involving initial login PDU processing during asynchronous TCP connection close. (MNC + nab) This is a little larger than usual for an -rc4, primarily due to the iscsi-target v3.12.y regression OOPs bug-fix. However, it's an important patch as MNC + Hannes where both able to trigger it using a reduced iscsi initiator login timeout combined with a backend taking a long time to complete I/Os during iscsi login driven session reinstatement" * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: iscsi-target: Always wait for kthread_should_stop() before kthread exit iscsi-target: Fix initial login PDU asynchronous socket close OOPs tcmu: fix crash during device removal target: Re-add check to reject control WRITEs with overflow data ibmvscsis: Fix the incorrect req_lim_delta ibmvscsis: Clear left-over abort_cmd pointers
2017-06-01qed: Encapsulate interrupt counters in structMintz, Yuval
We already have an API struct that contains interrupt-related numbers. Use it to encapsulate all information relating to the status of SBs as (used|free). Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31dsa: add DSA switch driver for Microchip KSZ9477Woojung Huh
The KSZ9477 is a fully integrated layer 2, managed, 7 ports GigE switch with numerous advanced features. 5 ports incorporate 10/100/1000 Mbps PHYs. The other 2 ports have interfaces that can be configured as SGMII, RGMII, MII or RMII. Either of these may connect directly to a host processor or to an external PHY. The SGMII port may interface to a fiber optic transceiver. This driver currently supports vlan, fdb, mdb & mirror dsa switch operations. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31phy: micrel: add Microchip KSZ 9477 Switch PHY supportWoojung Huh
Adding Microchip 9477 Phy included in KSZ9477 Switch. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Woojung Huh <Woojung.Huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31dsa: add support for Microchip KSZ tail taggingWoojung Huh
Adding support for the Microchip KSZ switch family tail tagging. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Woojung Huh <Woojung.Huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31bpf: teach verifier to track stack depthAlexei Starovoitov
teach verifier to track bpf program stack depth Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31bpf: free up BPF_JMP | BPF_CALL | BPF_X opcodeAlexei Starovoitov
free up BPF_JMP | BPF_CALL | BPF_X opcode to be used by actual indirect call by register and use kernel internal opcode to mark call instruction into bpf_tail_call() helper. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 13:06:51 +0000