Krishnamraju Eraparaju d219face90 RDMA/iw_cxgb4: initiate CLOSE when entering TERM ... As per draft-hilland-iwarp-verbs-v1.0, sec 6.2.3, always initiate a CLOSE when entering into TERM state. In c4iw_modify_qp(), disconnect operation should only be performed when the modify_qp call is invoked from ib_core. And all other internal modify_qp calls(invoked within iw_cxgb4) that needs 'disconnect' should call c4iw_ep_disconnect() explicitly after modify_qp. Otherwise, deadlocks like below can occur: Call Trace: schedule+0x2f/0xa0 schedule_preempt_disabled+0xa/0x10 __mutex_lock.isra.5+0x2d0/0x4a0 c4iw_ep_disconnect+0x39/0x430 => tries to reacquire ep lock again c4iw_modify_qp+0x468/0x10d0 rx_data+0x218/0x570 => acquires ep lock process_work+0x5f/0x70 process_one_work+0x1a7/0x3b0 worker_thread+0x30/0x390 kthread+0x112/0x130 ret_from_fork+0x35/0x40 Fixes: d2c33370ae ("RDMA/iw_cxgb4: Always disconnect when QP is transitioning to TERMINATE state") Link: https://lore.kernel.org/r/20200204091230.7210-1-krishna2@chelsio.com Signed-off-by: Krishnamraju Eraparaju <krishna2@chelsio.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>		2020-02-11 14:28:00 -04:00
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core	RDMA/core: Fix invalid memory access in spec_filter_size	2020-02-11 14:14:52 -04:00
hw	RDMA/iw_cxgb4: initiate CLOSE when entering TERM	2020-02-11 14:28:00 -04:00
sw	IB/rdmavt: Reset all QPs when the device is shut down	2020-02-11 11:41:32 -04:00
ulp	RDMA subsystem updates for 5.6	2020-01-31 14:40:36 -08:00
Kconfig	RDMA/iw_cxgb3: Remove the iw_cxgb3 module from kernel	2019-10-04 15:08:59 -03:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00