One more thing we have modified is in the file "drivers/infiniband/hw/rxe/rxe_net.c
we have commented the *line 426* //struct net_device *ndev = arg; and added the following struct netdev_notifier_info *info =arg; struct net_device *ndev = info->dev; moreover we have copied "ib_pack.h" from the vanilla(3.0.0+) to latest kernel (4.0.4) please help me... to achieve SoftRoCE in latest kernel *with warm regards* *Dinesh.K.B * Software Engineer *Cell : *+91 9944456867 | *Skype :* dinesh_kb93 On Tue, Jun 9, 2015 at 1:53 PM, Dinesh Kb <dinesh...@vvdntech.in> wrote: > Hi, > > *"I am new to > OFED"* > > I have downloaded the "*Soft-RoCE*" which includes the *kernel (3.0.0+) *and > *rxe support.* > I have Installed all the packages included in the *OFED-1.5.2-rxe *except > the* kernel-ib. * > > *In kernel 3.0.0+, *I am able to run the "rping" test successfully and > able to perform the benchmark tests, I am comfort with benchmark output. > > Now I am in need to perform the RoCE operation in the* higher kernel > version...say 4.0.4* > > I have downloaded source file for the kernel version 4.0.4 and i have > copied "driver/infiniband/hw/rxe" directory from kernel 3.0.0+ and pasted > in the 4.0.4 kernel source and I have applied some patch for rxe to work > smoothly... > > I am facing *Kernel crash* while running rping... > and regarding the *benchmark...* > > when running rping as server in the higher kernel version and client in > the lower version is hold fine.... > but its worse(crash) when running vice-versa > > Now i am facing problems, when kernel 4.04 acts as a client... > while taking the *wireshark *output.. the server constantly sends the "read > request" and its not getting any response from the client... > > the virtual address and dma length fields are "zero". > > > Kindly help me..... > > *Is there any possibilities/ perfect patch to make SoftRoCE work fine with > higher kernel version (say kernel 3.19+)* > > I hereby attached the wireshark output for* ib_read_bw* (when higher > version acts as a client and 3.0.0+ acts as a server) and the patch i have > applied as an attachment > > the crash in the server is as follows > > root@ls2085aqds:/etc/libibverbs.d# rping -s > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 810 at kernel/softirq.c:146 > __local_bh_enable_ip+0x84/0xc0() > Modules linked in: ib_rxe_net ib_rxe rdma_ucm ib_ucm ib_uverbs ib_umad > rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr ipv6 > CPU: 0 PID: 810 Comm: kworker/0:1 Not tainted 3.16.0-Layerscape2-SDK+g330dd4b > #20 > Workqueue: ib_cm cm_work_handler [ib_cm] > Call trace: > [<ffffffc000088084>] dump_backtrace+0x0/0x12c > [<ffffffc0000881c0>] show_stack+0x10/0x1c > [<ffffffc000552fa4>] dump_stack+0x74/0xc4 > [<ffffffc0000a9b8c>] warn_slowpath_common+0x84/0xac > [<ffffffc0000a9c78>] warn_slowpath_null+0x14/0x20 > [<ffffffc0000ae3d0>] __local_bh_enable_ip+0x80/0xc0 > [<ffffffc00049fccc>] __dev_queue_xmit+0x1cc/0x408 > [<ffffffc00049ff14>] dev_queue_xmit+0xc/0x18 > [<ffffffbffc11b620>] send_finish+0x34/0x40 [ib_rxe_net] > [<ffffffbffc11b6b8>] send+0x8c/0xec [ib_rxe_net] > [<ffffffbffc10933c>] $x+0x318/0x334 [ib_rxe] > [<ffffffbffc109be0>] $x+0xa8/0x120 [ib_rxe] > [<ffffffbffc109d54>] rxe_run_task+0x4c/0x90 [ib_rxe] > [<ffffffbffc1093b4>] arbiter_skb_queue+0x5c/0x8c [ib_rxe] > [<ffffffbffc0fffd4>] rxe_requester+0x83c/0xddc [ib_rxe] > [<ffffffbffc109be0>] $x+0xa8/0x120 [ib_rxe] > [<ffffffbffc109d54>] rxe_run_task+0x4c/0x90 [ib_rxe] > [<ffffffbffc104e0c>] rxe_post_send+0x80/0x40c [ib_rxe] > [<ffffffbffc097068>] ib_send_mad+0x288/0x454 [ib_mad] > [<ffffffbffc09759c>] ib_post_send_mad+0x190/0x544 [ib_mad] > [<ffffffbffc0b075c>] ib_send_cm_rej+0xd0/0x194 [ib_cm] > [<ffffffbffc0b19b8>] cm_destroy_id+0x188/0x300 [ib_cm] > [<ffffffbffc0b1e80>] cm_process_work+0x154/0x17c [ib_cm] > [<ffffffbffc0b2600>] cm_req_handler+0x758/0x978 [ib_cm] > [<ffffffbffc0b28ec>] cm_work_handler+0xcc/0x1584 [ib_cm] > [<ffffffc0000c0918>] process_one_work+0x114/0x354 > [<ffffffc0000c12f8>] worker_thread+0x13c/0x500 > [<ffffffc0000c7034>] kthread+0xd0/0xe8 > ---[ end trace be7a1b95934c8f03 ]--- > > > *with warm regards* > *Dinesh.K.B * > Software Engineer > > > *Cell : *+91 9944456867 | *Skype :* dinesh_kb93 >
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