From 9755f72496664eec70bc804104118b5797b6bf63 Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Fri, 14 Jun 2019 12:32:38 -0400 Subject: IB/hfi1: Create inline to get extended headers This paves the way for another patch that reacts to a flush sdma completion for RC. Fixes: 81cd3891f021 ("IB/hfi1: Add support for 16B Management Packets") Reviewed-by: Dennis Dalessandro Signed-off-by: Mike Marciniszyn Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hfi1/hfi.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'drivers/infiniband/hw/hfi1/hfi.h') diff --git a/drivers/infiniband/hw/hfi1/hfi.h b/drivers/infiniband/hw/hfi1/hfi.h index b458c218842b..fa45350a9a1d 100644 --- a/drivers/infiniband/hw/hfi1/hfi.h +++ b/drivers/infiniband/hw/hfi1/hfi.h @@ -539,6 +539,37 @@ static inline void hfi1_16B_set_qpn(struct opa_16b_mgmt *mgmt, mgmt->src_qpn = cpu_to_be32(src_qp & OPA_16B_MGMT_QPN_MASK); } +/** + * hfi1_get_rc_ohdr - get extended header + * @opah - the opaheader + */ +static inline struct ib_other_headers * +hfi1_get_rc_ohdr(struct hfi1_opa_header *opah) +{ + struct ib_other_headers *ohdr; + struct ib_header *hdr = NULL; + struct hfi1_16b_header *hdr_16b = NULL; + + /* Find out where the BTH is */ + if (opah->hdr_type == HFI1_PKT_TYPE_9B) { + hdr = &opah->ibh; + if (ib_get_lnh(hdr) == HFI1_LRH_BTH) + ohdr = &hdr->u.oth; + else + ohdr = &hdr->u.l.oth; + } else { + u8 l4; + + hdr_16b = &opah->opah; + l4 = hfi1_16B_get_l4(hdr_16b); + if (l4 == OPA_16B_L4_IB_LOCAL) + ohdr = &hdr_16b->u.oth; + else + ohdr = &hdr_16b->u.l.oth; + } + return ohdr; +} + struct rvt_sge_state; /* -- cgit v1.2.3