diff options
author | Maxime Ripard <mripard@kernel.org> | 2019-10-03 09:59:29 +0200 |
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committer | Maxime Ripard <mripard@kernel.org> | 2019-10-03 09:59:29 +0200 |
commit | 77fdaa091d79c87323a9f3912a25f73e02ea2a01 (patch) | |
tree | 0e47e2d3c4a966277dbaec075f4685187fdae482 /drivers/infiniband/sw/siw/siw_qp.c | |
parent | drm/omap: fix max fclk divider for omap36xx (diff) | |
parent | Linux 5.4-rc1 (diff) | |
download | linux-dev-77fdaa091d79c87323a9f3912a25f73e02ea2a01.tar.xz linux-dev-77fdaa091d79c87323a9f3912a25f73e02ea2a01.zip |
Merge drm/drm-fixes into drm-misc-fixes
We haven't backmerged for a while, let's start the -rc period by pulling
rc1.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'drivers/infiniband/sw/siw/siw_qp.c')
-rw-r--r-- | drivers/infiniband/sw/siw/siw_qp.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/infiniband/sw/siw/siw_qp.c b/drivers/infiniband/sw/siw/siw_qp.c index e27bd5b35b96..430314c8abd9 100644 --- a/drivers/infiniband/sw/siw/siw_qp.c +++ b/drivers/infiniband/sw/siw/siw_qp.c @@ -949,7 +949,7 @@ skip_irq: rv = -EINVAL; goto out; } - wqe->sqe.sge[0].laddr = (u64)&wqe->sqe.sge[1]; + wqe->sqe.sge[0].laddr = (uintptr_t)&wqe->sqe.sge[1]; wqe->sqe.sge[0].lkey = 0; wqe->sqe.num_sge = 1; } @@ -1013,18 +1013,24 @@ out: */ static bool siw_cq_notify_now(struct siw_cq *cq, u32 flags) { - u64 cq_notify; + u32 cq_notify; if (!cq->base_cq.comp_handler) return false; - cq_notify = READ_ONCE(*cq->notify); + /* Read application shared notification state */ + cq_notify = READ_ONCE(cq->notify->flags); if ((cq_notify & SIW_NOTIFY_NEXT_COMPLETION) || ((cq_notify & SIW_NOTIFY_SOLICITED) && (flags & SIW_WQE_SOLICITED))) { - /* dis-arm CQ */ - smp_store_mb(*cq->notify, SIW_NOTIFY_NOT); + /* + * CQ notification is one-shot: Since the + * current CQE causes user notification, + * the CQ gets dis-aremd and must be re-aremd + * by the user for a new notification. + */ + WRITE_ONCE(cq->notify->flags, SIW_NOTIFY_NOT); return true; } |