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| author | Chuck Lever <chuck.lever@oracle.com> | 2014-07-29 17:25:20 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2014-07-31 16:22:57 -0400 |
| commit | dab7e3b8da5ef76143a7e609612c306898f8f8fc (patch) | |
| tree | dfea36e23ae5204f5d4e93c195ff740d9670cc6e /net/sunrpc/xprtrdma/verbs.c | |
| parent | 050557220e34ed5acc830c9bf6cd993f6b4ea33e (diff) | |
| download | talos-obmc-linux-dab7e3b8da5ef76143a7e609612c306898f8f8fc.tar.gz talos-obmc-linux-dab7e3b8da5ef76143a7e609612c306898f8f8fc.zip | |
xprtrdma: Disable completions for LOCAL_INV Work Requests
Instead of relying on a completion to change the state of an FRMR
to FRMR_IS_INVALID, 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>
Diffstat (limited to 'net/sunrpc/xprtrdma/verbs.c')
| -rw-r--r-- | net/sunrpc/xprtrdma/verbs.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index 3e8b3881548d..08c92355c64c 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -154,12 +154,8 @@ rpcrdma_sendcq_process_wc(struct ib_wc *wc) if (wc->wr_id == 0ULL) return; - if (wc->status != IB_WC_SUCCESS) { + if (wc->status != IB_WC_SUCCESS) frmr->r.frmr.fr_state = FRMR_IS_STALE; - return; - } - - frmr->r.frmr.fr_state = FRMR_IS_INVALID; } static int @@ -1369,12 +1365,11 @@ rpcrdma_retry_local_inv(struct rpcrdma_mw *r, struct rpcrdma_ia *ia) dprintk("RPC: %s: FRMR %p is stale\n", __func__, r); /* When this FRMR is re-inserted into rb_mws, it is no longer stale */ - r->r.frmr.fr_state = FRMR_IS_VALID; + r->r.frmr.fr_state = FRMR_IS_INVALID; memset(&invalidate_wr, 0, sizeof(invalidate_wr)); invalidate_wr.wr_id = (unsigned long)(void *)r; invalidate_wr.opcode = IB_WR_LOCAL_INV; - invalidate_wr.send_flags = IB_SEND_SIGNALED; invalidate_wr.ex.invalidate_rkey = r->r.frmr.fr_mr->rkey; DECR_CQCOUNT(&r_xprt->rx_ep); @@ -1778,10 +1773,11 @@ rpcrdma_deregister_frmr_external(struct rpcrdma_mr_seg *seg, struct ib_send_wr invalidate_wr, *bad_wr; int rc; + seg1->mr_chunk.rl_mw->r.frmr.fr_state = FRMR_IS_INVALID; + memset(&invalidate_wr, 0, sizeof invalidate_wr); invalidate_wr.wr_id = (unsigned long)(void *)seg1->mr_chunk.rl_mw; invalidate_wr.opcode = IB_WR_LOCAL_INV; - invalidate_wr.send_flags = IB_SEND_SIGNALED; invalidate_wr.ex.invalidate_rkey = seg1->mr_chunk.rl_mw->r.frmr.fr_mr->rkey; DECR_CQCOUNT(&r_xprt->rx_ep); @@ -1790,9 +1786,12 @@ rpcrdma_deregister_frmr_external(struct rpcrdma_mr_seg *seg, rpcrdma_unmap_one(ia, seg++); rc = ib_post_send(ia->ri_id->qp, &invalidate_wr, &bad_wr); read_unlock(&ia->ri_qplock); - if (rc) + if (rc) { + /* Force rpcrdma_buffer_get() to retry */ + seg1->mr_chunk.rl_mw->r.frmr.fr_state = FRMR_IS_STALE; dprintk("RPC: %s: failed ib_post_send for invalidate," " status %i\n", __func__, rc); + } return rc; } |
