[RFC 16/19] RDMA/qedr: Add support for read with invalidate, supported in iWARP
From: Michal Kalderon <hidden>
Date: 2017-06-26 18:07:06
Also in:
netdev
Subsystem:
infiniband subsystem, qlogic ql4xxx rdma driver, the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Michal Kalderon, Linus Torvalds
iWARP supports read with invalidate. There is an assumption that read with invalidate will only be called on an iWARP device Signed-off-by: Michal Kalderon <Michal.Kalderon-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org> Signed-off-by: Ram Amrani <Ram.Amrani-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org> Signed-off-by: Ariel Elior <Ariel.Elior-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org> --- drivers/infiniband/hw/qedr/qedr_hsi_rdma.h | 6 ++++-- drivers/infiniband/hw/qedr/verbs.c | 8 +++----- 2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/infiniband/hw/qedr/qedr_hsi_rdma.h b/drivers/infiniband/hw/qedr/qedr_hsi_rdma.h
index 5c98d20..b7587f1 100644
--- a/drivers/infiniband/hw/qedr/qedr_hsi_rdma.h
+++ b/drivers/infiniband/hw/qedr/qedr_hsi_rdma.h@@ -655,8 +655,10 @@ struct rdma_sq_rdma_wqe_1st { #define RDMA_SQ_RDMA_WQE_1ST_INLINE_FLG_SHIFT 4 #define RDMA_SQ_RDMA_WQE_1ST_DIF_ON_HOST_FLG_MASK 0x1 #define RDMA_SQ_RDMA_WQE_1ST_DIF_ON_HOST_FLG_SHIFT 5 -#define RDMA_SQ_RDMA_WQE_1ST_RESERVED0_MASK 0x3 -#define RDMA_SQ_RDMA_WQE_1ST_RESERVED0_SHIFT 6 +#define RDMA_SQ_RDMA_WQE_1ST_READ_INV_FLG_MASK 0x1 +#define RDMA_SQ_RDMA_WQE_1ST_READ_INV_FLG_SHIFT 6 +#define RDMA_SQ_RDMA_WQE_1ST_RESERVED0_MASK 0x1 +#define RDMA_SQ_RDMA_WQE_1ST_RESERVED0_SHIFT 7 u8 wqe_size; u8 prev_wqe_size; };
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 7fef9b3..fc9ff13 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c@@ -2837,6 +2837,7 @@ static enum ib_wc_opcode qedr_ib_to_wc_opcode(enum ib_wr_opcode opcode) case IB_WR_SEND_WITH_INV: return IB_WC_SEND; case IB_WR_RDMA_READ: + case IB_WR_RDMA_READ_WITH_INV: return IB_WC_RDMA_READ; case IB_WR_ATOMIC_CMP_AND_SWP: return IB_WC_COMP_SWAP;
@@ -2997,11 +2998,8 @@ static int __qedr_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, qp->wqe_wr_id[qp->sq.prod].bytes_len = rwqe->length; break; case IB_WR_RDMA_READ_WITH_INV: - DP_ERR(dev, - "RDMA READ WITH INVALIDATE not supported\n"); - *bad_wr = wr; - rc = -EINVAL; - break; + SET_FIELD2(wqe->flags, RDMA_SQ_RDMA_WQE_1ST_READ_INV_FLG, 1); + /* fallthrough... same is identical to RDMA READ */ case IB_WR_RDMA_READ: wqe->req_type = RDMA_SQ_REQ_TYPE_RDMA_RD;
--
1.8.3.1
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