RDMA/cxgb3: Support version 5.0 firmware

The 5.0 firmware now supports translating sgls in recv work requests,
so remove the host driver logic currently doing the translation.

Note: this change requires 5.0 firmware.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c
index dd89b6b..9bb8112 100644 (file)
--- a/drivers/infiniband/hw/cxgb3/iwch_qp.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c
@@ -208,36 +208,19 @@ static int iwch_sgl2pbl_map(struct iwch_dev *rhp, struct ib_sge *sg_list,
 static int iwch_build_rdma_recv(struct iwch_dev *rhp, union t3_wr *wqe,
                                struct ib_recv_wr *wr)
 {
-       int i, err = 0;
-       u32 pbl_addr[4];
-       u8 page_size[4];
+       int i;
        if (wr->num_sge > T3_MAX_SGE)
                return -EINVAL;
-       err = iwch_sgl2pbl_map(rhp, wr->sg_list, wr->num_sge, pbl_addr,
-                              page_size);
-       if (err)
-               return err;
-       wqe->recv.pagesz[0] = page_size[0];
-       wqe->recv.pagesz[1] = page_size[1];
-       wqe->recv.pagesz[2] = page_size[2];
-       wqe->recv.pagesz[3] = page_size[3];
        wqe->recv.num_sgle = cpu_to_be32(wr->num_sge);
        for (i = 0; i < wr->num_sge; i++) {
                wqe->recv.sgl[i].stag = cpu_to_be32(wr->sg_list[i].lkey);
                wqe->recv.sgl[i].len = cpu_to_be32(wr->sg_list[i].length);
-
-               /* to in the WQE == the offset into the page */
-               wqe->recv.sgl[i].to = cpu_to_be64(((u32) wr->sg_list[i].addr) %
-                               (1UL << (12 + page_size[i])));
-
-               /* pbl_addr is the adapters address in the PBL */
-               wqe->recv.pbl_addr[i] = cpu_to_be32(pbl_addr[i]);
+               wqe->recv.sgl[i].to = cpu_to_be64(wr->sg_list[i].addr);
        }
        for (; i < T3_MAX_SGE; i++) {
                wqe->recv.sgl[i].stag = 0;
                wqe->recv.sgl[i].len = 0;
                wqe->recv.sgl[i].to = 0;
-               wqe->recv.pbl_addr[i] = 0;
        }
        return 0;
 }