xprtrdma: Disable completions for FAST_REG_MR Work Requests
Instead of relying on a completion to change the state of an FRMR to FRMR_IS_VALID, set it in advance. If an error occurs, a completion will fire anyway and mark the FRMR FRMR_IS_STALE. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Tested-by: Steve Wise <swise@opengridcomputing.com> Tested-by: Shirley Ma <shirley.ma@oracle.com> Tested-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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@ -159,9 +159,6 @@ rpcrdma_sendcq_process_wc(struct ib_wc *wc)
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return;
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}
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if (wc->opcode == IB_WC_FAST_REG_MR)
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frmr->r.frmr.fr_state = FRMR_IS_VALID;
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else if (wc->opcode == IB_WC_LOCAL_INV)
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frmr->r.frmr.fr_state = FRMR_IS_INVALID;
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}
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@ -1727,10 +1724,11 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
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dprintk("RPC: %s: Using frmr %p to map %d segments\n",
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__func__, mw, i);
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frmr->fr_state = FRMR_IS_VALID;
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memset(&frmr_wr, 0, sizeof frmr_wr);
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frmr_wr.wr_id = (unsigned long)(void *)mw;
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frmr_wr.opcode = IB_WR_FAST_REG_MR;
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frmr_wr.send_flags = IB_SEND_SIGNALED;
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frmr_wr.wr.fast_reg.iova_start = seg1->mr_dma;
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frmr_wr.wr.fast_reg.page_list = frmr->fr_pgl;
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frmr_wr.wr.fast_reg.page_list_len = page_no;
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@ -1766,6 +1764,7 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
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*nsegs = i;
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return 0;
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out_err:
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frmr->fr_state = FRMR_IS_INVALID;
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while (i--)
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rpcrdma_unmap_one(ia, --seg);
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return rc;
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