diff options
author | Konstantin Taranov <konstantin.taranov@inf.ethz.ch> | 2019-06-27 17:06:43 +0300 |
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committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-07-08 22:40:15 +0300 |
commit | bdce1290493caa3f8119f24b5dacc3fb7ca27389 (patch) | |
tree | bf12cf21adbbde4e23a085605f3ef3743b86f751 /drivers/infiniband/sw/rxe/rxe_resp.c | |
parent | 96e2fd733b9af304edcf30ef922dcaa4d3e1bfa6 (diff) | |
download | linux-bdce1290493caa3f8119f24b5dacc3fb7ca27389.tar.xz |
RDMA/rxe: Fill in wc byte_len with IB_WC_RECV_RDMA_WITH_IMM
Calculate the correct byte_len on the receiving side when a work
completion is generated with IB_WC_RECV_RDMA_WITH_IMM opcode.
According to the IBA byte_len must indicate the number of written bytes,
whereas it was always equal to zero for the IB_WC_RECV_RDMA_WITH_IMM
opcode, even though data was transferred.
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Signed-off-by: Konstantin Taranov <konstantin.taranov@inf.ethz.ch>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_resp.c')
-rw-r--r-- | drivers/infiniband/sw/rxe/rxe_resp.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c index aca9f60f9b21..1cbfbd98eb22 100644 --- a/drivers/infiniband/sw/rxe/rxe_resp.c +++ b/drivers/infiniband/sw/rxe/rxe_resp.c @@ -431,6 +431,7 @@ static enum resp_states check_rkey(struct rxe_qp *qp, qp->resp.va = reth_va(pkt); qp->resp.rkey = reth_rkey(pkt); qp->resp.resid = reth_len(pkt); + qp->resp.length = reth_len(pkt); } access = (pkt->mask & RXE_READ_MASK) ? IB_ACCESS_REMOTE_READ : IB_ACCESS_REMOTE_WRITE; @@ -856,7 +857,9 @@ static enum resp_states do_complete(struct rxe_qp *qp, pkt->mask & RXE_WRITE_MASK) ? IB_WC_RECV_RDMA_WITH_IMM : IB_WC_RECV; wc->vendor_err = 0; - wc->byte_len = wqe->dma.length - wqe->dma.resid; + wc->byte_len = (pkt->mask & RXE_IMMDT_MASK && + pkt->mask & RXE_WRITE_MASK) ? + qp->resp.length : wqe->dma.length - wqe->dma.resid; /* fields after byte_len are different between kernel and user * space |