Slava Shwartsman 5ace00dffe ibcore: Fix sleeping in atomic when RoCE is used ... A couple of places in the CM do spin_lock_irq(&cm_id_priv->lock); ... if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg)) However when the underlying transport is RoCE, this leads to a sleeping function being called with the lock held - the callchain is cm_alloc_response_msg() -> ib_create_ah_from_wc() -> ib_init_ah_from_wc() -> rdma_addr_find_l2_eth_by_grh() -> rdma_resolve_ip() and rdma_resolve_ip() starts out by doing req = kzalloc(sizeof *req, GFP_KERNEL); not to mention rdma_addr_find_l2_eth_by_grh() doing wait_for_completion(&ctx.comp); to wait for the task that rdma_resolve_ip() queues up. Fix this by moving the AH creation out of the lock. Linux commit: c76161181193985087cd716fdf69b5cb6cf9ee85 Submitted by: hselasky@ Approved by: hselasky (mentor) MFC after: 1 week Sponsored by: Mellanox Technologies		2018-12-05 13:24:12 +00:00
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drivers/infiniband	ibcore: Fix sleeping in atomic when RoCE is used	2018-12-05 13:24:12 +00:00
include	Introduce and use sgid_index in CM requests in ibcore.	2018-09-09 07:20:15 +00:00