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path: root/drivers/infiniband/hw/qib/qib_iba6120.c
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Diffstat (limited to 'drivers/infiniband/hw/qib/qib_iba6120.c')
-rw-r--r--drivers/infiniband/hw/qib/qib_iba6120.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/qib/qib_iba6120.c b/drivers/infiniband/hw/qib/qib_iba6120.c
index 781a802a321..4f18e2d332d 100644
--- a/drivers/infiniband/hw/qib/qib_iba6120.c
+++ b/drivers/infiniband/hw/qib/qib_iba6120.c
@@ -2076,9 +2076,11 @@ static void qib_6120_config_ctxts(struct qib_devdata *dd)
static void qib_update_6120_usrhead(struct qib_ctxtdata *rcd, u64 hd,
u32 updegr, u32 egrhd, u32 npkts)
{
- qib_write_ureg(rcd->dd, ur_rcvhdrhead, hd, rcd->ctxt);
if (updegr)
qib_write_ureg(rcd->dd, ur_rcvegrindexhead, egrhd, rcd->ctxt);
+ mmiowb();
+ qib_write_ureg(rcd->dd, ur_rcvhdrhead, hd, rcd->ctxt);
+ mmiowb();
}
static u32 qib_6120_hdrqempty(struct qib_ctxtdata *rcd)