Commit 3a7a66e5 authored by Jim Harris's avatar Jim Harris
Browse files

nvme: add wmb before writing shadow register 



Fixes issue #1828.

Signed-off-by: default avatarJim Harris <james.r.harris@intel.com>
Change-Id: I02ba897b6c10f4ec870f46825f09e00f0c7c0235
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7905


Community-CI: Mellanox Build Bot
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
parent c7540439

lib/nvme/nvme_pcie_internal.h

+2 −0
Original line number Diff line number Diff line
@@ -241,6 +241,8 @@ nvme_pcie_qpair_update_mmio_required(struct spdk_nvme_qpair *qpair, uint16_t val 
		return true;

	}



	spdk_wmb();



	old = *shadow_db;

	*shadow_db = value;