Commit 6376e926 authored by Shiraz Saleem's avatar Shiraz Saleem Committed by Jason Gunthorpe

i40iw: Zero-out consumer key on allocate stag for FMR

If the application invalidates the MR before the FMR WR, HW parses the
consumer key portion of the stag and returns an invalid stag key
Asynchronous Event (AE) that tears down the QP.

Fix this by zeroing-out the consumer key portion of the allocated stag
returned to application for FMR.

Fixes: ee855d3b93f3 ("RDMA/i40iw: Add base memory management extensions")
Signed-off-by: default avatarShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 23541b28
......@@ -1637,6 +1637,7 @@ static struct ib_mr *i40iw_alloc_mr(struct ib_pd *pd,
err_code = -EOVERFLOW;
goto err;
}
stag &= ~I40IW_CQPSQ_STAG_KEY_MASK;
iwmr->stag = stag;
iwmr->ibmr.rkey = stag;
iwmr->ibmr.lkey = stag;
......
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