提交 5715f5d4 编写于 作者: J Jason Gunthorpe 提交者: Roland Dreier

IB/qib: Process RDMA WRITE ONLY with IMMEDIATE properly

See table 35 in IBA - the header order for RDMA_WRITE_ONLY_WITH_IMMEDIATE
and SEND_LAST_WITH_IMMEDIATE is different: the RDMA_WRITE_ONLY has
a RETH header before the immediate data, so we need a different code path
to extract the immediate data.

I tested this with a userspace app that does RDMA_WRITE with immediate
on a QLE7140.
Signed-off-by: NJason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
上级 0f2f930a
......@@ -2068,7 +2068,10 @@ void qib_rc_rcv(struct qib_ctxtdata *rcd, struct qib_ib_header *hdr,
goto nack_op_err;
if (!ret)
goto rnr_nak;
goto send_last_imm;
wc.ex.imm_data = ohdr->u.rc.imm_data;
hdrsize += 4;
wc.wc_flags = IB_WC_WITH_IMM;
goto send_last;
case OP(RDMA_READ_REQUEST): {
struct qib_ack_entry *e;
......
......@@ -457,8 +457,10 @@ void qib_uc_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
}
if (opcode == OP(RDMA_WRITE_ONLY))
goto rdma_last;
else if (opcode == OP(RDMA_WRITE_ONLY_WITH_IMMEDIATE))
else if (opcode == OP(RDMA_WRITE_ONLY_WITH_IMMEDIATE)) {
wc.ex.imm_data = ohdr->u.rc.imm_data;
goto rdma_last_imm;
}
/* FALLTHROUGH */
case OP(RDMA_WRITE_MIDDLE):
/* Check for invalid length PMTU or posted rwqe len. */
......@@ -471,8 +473,8 @@ void qib_uc_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
break;
case OP(RDMA_WRITE_LAST_WITH_IMMEDIATE):
rdma_last_imm:
wc.ex.imm_data = ohdr->u.imm_data;
rdma_last_imm:
hdrsize += 4;
wc.wc_flags = IB_WC_WITH_IMM;
......
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