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path: root/drivers/infiniband/hw/qib/qib_iba7322.c
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Diffstat (limited to 'drivers/infiniband/hw/qib/qib_iba7322.c')
-rw-r--r--drivers/infiniband/hw/qib/qib_iba7322.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c
index 5ea9ece23b33..b7c3c7df268b 100644
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -4084,10 +4084,12 @@ static void qib_update_7322_usrhead(struct qib_ctxtdata *rcd, u64 hd,
*/
if (hd >> IBA7322_HDRHEAD_PKTINT_SHIFT)
adjust_rcv_timeout(rcd, npkts);
- qib_write_ureg(rcd->dd, ur_rcvhdrhead, hd, rcd->ctxt);
- 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);
+ qib_write_ureg(rcd->dd, ur_rcvhdrhead, hd, rcd->ctxt);
+ mmiowb();
}
static u32 qib_7322_hdrqempty(struct qib_ctxtdata *rcd)