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path: root/drivers/infiniband/hw/ipath/ipath_mad.c
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Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_mad.c')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_mad.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_mad.c b/drivers/infiniband/hw/ipath/ipath_mad.c
index 25908b02fbe5..2e9e161bfd0a 100644
--- a/drivers/infiniband/hw/ipath/ipath_mad.c
+++ b/drivers/infiniband/hw/ipath/ipath_mad.c
@@ -292,7 +292,12 @@ static int recv_subn_get_portinfo(struct ib_smp *smp,
/* pip->vl_arb_high_cap; // only one VL */
/* pip->vl_arb_low_cap; // only one VL */
/* InitTypeReply = 0 */
- pip->inittypereply_mtucap = IB_MTU_4096;
+ /*
+ * Note: the chips support a maximum MTU of 4096, but the driver
+ * hasn't implemented this feature yet, so set the maximum value
+ * to 2048.
+ */
+ pip->inittypereply_mtucap = IB_MTU_2048;
// HCAs ignore VLStallCount and HOQLife
/* pip->vlstallcnt_hoqlife; */
pip->operationalvl_pei_peo_fpi_fpo = 0x10; /* OVLs = 1 */