MFC r303505, r303506, r303512, r303513, r303646, r320418, r323082,r326169, r326563, r326649, r326716, r326764, r326765 and r329222:RoCE/infiniband/iWarp upgrade to Linux 4.9 for kernel and userspace.This commit merges projects/bsd_rdma_4_9 to 11-stable.Compatibility wrappers have been made for existing 11-stable ibcoreAPIs, including ib_reg_phys_mr().Refer to "sys/ofed/include/rdma/ib_verbs_compat.h" for more information.The iw_cxgb driver has not been updated and has been disconnected fromthe build.Sponsored by: Mellanox TechnologiesMFC r326169 and r326563:RoCE/infiniband upgrade to Linux v4.9 for kernel and userspace.List of kernel sources used:============================1) kernel sources were cloned from git://github.com/torvalds/linux.gitTop commit 69973b830859bc6529a7a0468ba0d80ee5117826 - tag: v4.9, linux-4.92) krping was cloned from https://github.com/larrystevenwise/krpingTop commit 292a2f1abf0348285e678a82264740d52e4dcfe4List of userspace sources used:===============================1) rdma-core was cloned from https://github.com/linux-rdma/rdma-core.gitTop commit d65138ef93af30b3ea249f3a84aa6a24ba7f8a752) OpenSM was cloned from git://git.openfabrics.org/~halr/opensm.gitTop commit 85f841cf209f791c89a075048a907020e924528d3) libibmad was cloned from git://git.openfabrics.org/~iraweiny/libibmad.gitTag 1.3.13 with some additional patches from Mellanox.4) infiniband-diags was cloned from git://git.openfabrics.org/~iraweiny/infiniband-diags.gitTag 1.6.7 with some additional patches from Mellanox.NOTES:======1) The mthca driver has been removed from userspace.2) All GPLv2 only sources have been removed and where applicable rewritten from scratch under a BSD license.3) List of fully supported drivers in userspace and kernel: a) iw_cxgbe (Chelsio) b) mlx4ib (Mellanox) c) mlx5ib (Mellanox)4) WITH_OFED=YES is still required by make in order to build OFED userspace and kernel code.5) Full support has been added for routable RoCE, RoCE v2.MFC r326649:Disconnect OFED after r326169 broke all DIRDEPS support for it.MFC r326716:Correctly define the unordered_map namespace in ofed/libibnetdisc .This should fix ofed/libibnetdisc compilation with C-compilersdifferent from clang and GCC v4.2.1.Submitted by: kibSponsored by: Mellanox TechnologiesMFC r326764:ofed: Remove duplicated symbols from the version file.ld.bfd accepts multiple listing of the same symbol in the version script.lld is stricter and errors out. Since arm64 and sometimes amd64 use lld,we should correct this cosmetic issue.Sponsored by: Mellanox TechnologiesReviewed by: hselaskyDifferential revision: https://reviews.freebsd.org/D13329MFC r326765:ofed: Define barriers for mips and arm.I used the strongest barriers available on the architectures, so ifthe future analysis show that it is excessive, the barriers could berelaxed. Still, it is unlikely that it is meaningful to run IB on 32bitARM or current MIPS machines, so the change is to make WITH_OFED to passtinderbox.Sponsored by: Mellanox TechnologiesReviewed by: hselaskyDifferential revision: https://reviews.freebsd.org/D13329MFC r303505:sdp: Use an mbufq for received control packets.This is simpler than the hand-rolled queue, and fixes a use-after-free.Sponsored by: EMC / Isilon Storage DivisionMFC r303506:sdp: Destroy the PCB lock before freeing to the zone.Sponsored by: EMC / Isilon Storage DivisionMFC r303512:sdp: Use malloc(9) instead of the Linux compat layer.SDP transmit and receive rings are always created in a sleepable context,so we can use M_WAITOK and remove error checks.Sponsored by: EMC / Isilon Storage DivisionMFC r303513:sdp: Destroy the RDMA ID after destroying the connection's queue pair.This is the ordering documented by rdma_destroy_qp(). Also add a usefulKASSERT to sdp_pcbfree().Sponsored by: EMC / Isilon Storage DivisionMFC r303646:ipoib: Bound the number of egress mbufs buffered during pathrec lookups.In pathological situations where the master subnet manager becomesunresponsive for an extended period, we may otherwise end up queuing allof the system's mbufs while waiting for a response to a path record lookup.This addresses the same issue as commit 1e85b806f9 in Linux.Reviewed by: cem, ngieSponsored by: EMC / Isilon Storage DivisionMFC r329222:Import the mthca kernel side infiniband driver from Linux 4.9 and fixcompilation under FreeBSD. The mthca driver was temporarily removed aspart of the Linux 4.9 RoCE/infinband upgrade.Top commit in Linux source tree:69973b830859bc6529a7a0468ba0d80ee5117826Sponsored by: Mellanox TechnologiesMFC r320418. Note that the socket lock _is_ the same as so_rcv's lockin 11 and this is a no-op in this branch.Sponsored by: Chelsio CommunicationsMFC r323082:cxgbe/iw_cxgbe: Set TCP_NODELAY before initiating connection so thatt4_tom picks it up right away. This is less work than waiting forthe connection to be established before applying the setting.Sponsored by: Chelsio Communications
Copy krping from 11-stable and modify it to use the new ibcorecompatibility wrappers.Sponsored by: Mellanox Technologies
Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.Prune svn:mergeinfo from the new branch, as nothing has been mergedhere.Additional commits post-branch will follow.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
Update krping to the latest upstream code. Move all the FreeBSDspecific parts to krping_dev.c, which leaves the other files asclose to their upstream versions as possible.
Import basic common and iwarp kernel RDMA infrastructure.Supported by: Chelsio Inc.