diff options
| author | Don Hiatt <don.hiatt@intel.com> | 2017-08-04 13:54:16 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-08-22 14:22:37 -0400 |
| commit | d98bb7f7e6fa29d45008370084d5cabac7ac69ed (patch) | |
| tree | 038e3cfcf118c4d7a6053b003ff130985a6a1fab /drivers/infiniband/hw/hfi1/verbs.c | |
| parent | 5786adf3fde7aa22a68eedac9c59e40da76ffbfb (diff) | |
| download | linux-d98bb7f7e6fa29d45008370084d5cabac7ac69ed.tar.gz linux-d98bb7f7e6fa29d45008370084d5cabac7ac69ed.tar.bz2 linux-d98bb7f7e6fa29d45008370084d5cabac7ac69ed.zip | |
IB/hfi1: Determine 9B/16B L2 header type based on Address handle
When address handle attributes are initialized, the LIDs are
transformed to be in the 32 bit LID space.
When constructing the header, hfi1 driver will look at the LID
to determine the packet header to be created.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/verbs.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/verbs.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c index 0b1556fed47e..18b27276f202 100644 --- a/drivers/infiniband/hw/hfi1/verbs.c +++ b/drivers/infiniband/hw/hfi1/verbs.c @@ -1421,6 +1421,15 @@ static int query_port(struct rvt_dev_info *rdi, u8 port_num, props->active_mtu = !valid_ib_mtu(ppd->ibmtu) ? props->max_mtu : mtu_to_enum(ppd->ibmtu, IB_MTU_2048); + /* + * sm_lid of 0xFFFF needs special handling so that it can + * be differentiated from a permissve LID of 0xFFFF. + * We set the grh_required flag here so the SA can program + * the DGID in the address handle appropriately + */ + if (props->sm_lid == be16_to_cpu(IB_LID_PERMISSIVE)) + props->grh_required = true; + return 0; } @@ -1528,6 +1537,7 @@ static void hfi1_notify_new_ah(struct ib_device *ibdev, struct hfi1_pportdata *ppd; struct hfi1_devdata *dd; u8 sc5; + struct rdma_ah_attr *attr = &ah->attr; /* * Do not trust reading anything from rvt_ah at this point as it is not @@ -1537,6 +1547,8 @@ static void hfi1_notify_new_ah(struct ib_device *ibdev, ibp = to_iport(ibdev, rdma_ah_get_port_num(ah_attr)); ppd = ppd_from_ibp(ibp); sc5 = ibp->sl_to_sc[rdma_ah_get_sl(&ah->attr)]; + hfi1_update_ah_attr(ibdev, attr); + hfi1_make_opa_lid(attr); dd = dd_from_ppd(ppd); ah->vl = sc_to_vlt(dd, sc5); if (ah->vl < num_vls || ah->vl == 15) |