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IB/hfi1: Add functions to parse BTH/IB headers

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Improve code readablity by adding inline functions
to read specific BTH/IB fields without knowledge of
byte offsets.

Reviewed-by: Brian Welty <brian.welty@intel.com>
Reviewed-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@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>
This commit is contained in:
Don Hiatt
2017-05-12 09:19:55 -07:00
committed by Doug Ledford
parent aa560df381
commit 7dafbab375
8 changed files with 101 additions and 15 deletions
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6
drivers/infiniband/hw/hfi1/ud.c
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@@ -549,7 +549,7 @@ void return_cnp(struct hfi1_ibport *ibp, struct rvt_qp *qp, u32 remote_qpn,
hdr.lrh[3] = cpu_to_be16(slid);
plen = 2 /* PBC */ + hwords;
pbc_flags |= (!!(sc5 & 0x10)) << PBC_DC_INFO_SHIFT;
pbc_flags |= (ib_is_sc5(sc5) << PBC_DC_INFO_SHIFT);
vl = sc_to_vlt(ppd->dd, sc5);
pbc = create_pbc(ppd, pbc_flags, qp->srate_mbps, vl, plen);
if (ctxt) {
@@ -689,8 +689,8 @@ void hfi1_ud_rcv(struct hfi1_packet *packet)
u16 slid;
u8 extra_bytes;
qkey = be32_to_cpu(ohdr->u.ud.deth[0]);
src_qp = be32_to_cpu(ohdr->u.ud.deth[1]) & RVT_QPN_MASK;
qkey = ib_get_qkey(ohdr);
src_qp = ib_get_sqpn(ohdr);
dlid = ib_get_dlid(hdr);
bth1 = be32_to_cpu(ohdr->bth[1]);
slid = ib_get_slid(hdr);