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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>
wifi-calibration
Chuck Lever 2014-07-29 17:25:12 -04:00 committed by Anna Schumaker
parent 440ddad51b
commit 050557220e
1 changed files with 4 additions and 5 deletions
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9
net/sunrpc/xprtrdma/verbs.c
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@ -159,10 +159,7 @@ rpcrdma_sendcq_process_wc(struct ib_wc *wc)
return;
}
if (wc->opcode == IB_WC_FAST_REG_MR)
frmr->r.frmr.fr_state = FRMR_IS_VALID;
else if (wc->opcode == IB_WC_LOCAL_INV)
frmr->r.frmr.fr_state = FRMR_IS_INVALID;
frmr->r.frmr.fr_state = FRMR_IS_INVALID;
}
static int
@ -1727,10 +1724,11 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
dprintk("RPC: %s: Using frmr %p to map %d segments\n",
__func__, mw, i);
frmr->fr_state = FRMR_IS_VALID;
memset(&frmr_wr, 0, sizeof frmr_wr);
frmr_wr.wr_id = (unsigned long)(void *)mw;
frmr_wr.opcode = IB_WR_FAST_REG_MR;
frmr_wr.send_flags = IB_SEND_SIGNALED;
frmr_wr.wr.fast_reg.iova_start = seg1->mr_dma;
frmr_wr.wr.fast_reg.page_list = frmr->fr_pgl;
frmr_wr.wr.fast_reg.page_list_len = page_no;
@ -1766,6 +1764,7 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
*nsegs = i;
return 0;
out_err:
frmr->fr_state = FRMR_IS_INVALID;
while (i--)
rpcrdma_unmap_one(ia, --seg);
return rc;