xprtrdma: Trace mapping, alloc, and dereg failures
These are rare, but can be helpful at tracking down DMAR and other
problems.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index 1f508f4..8a0f1a6 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -113,8 +113,7 @@ void frwr_release_mr(struct rpcrdma_mr *mr)
rc = ib_dereg_mr(mr->frwr.fr_mr);
if (rc)
- pr_err("rpcrdma: final ib_dereg_mr for %p returned %i\n",
- mr, rc);
+ trace_xprtrdma_frwr_dereg(mr, rc);
kfree(mr->mr_sg);
kfree(mr);
}
@@ -177,8 +176,7 @@ int frwr_init_mr(struct rpcrdma_ia *ia, struct rpcrdma_mr *mr)
out_mr_err:
rc = PTR_ERR(frwr->fr_mr);
- dprintk("RPC: %s: ib_alloc_mr status %i\n",
- __func__, rc);
+ trace_xprtrdma_frwr_alloc(mr, rc);
return rc;
out_list_err:
@@ -465,15 +463,13 @@ struct rpcrdma_mr_seg *frwr_map(struct rpcrdma_xprt *r_xprt,
return seg;
out_dmamap_err:
- pr_err("rpcrdma: failed to DMA map sg %p sg_nents %d\n",
- mr->mr_sg, i);
frwr->fr_state = FRWR_IS_INVALID;
+ trace_xprtrdma_frwr_sgerr(mr, i);
rpcrdma_mr_put(mr);
return ERR_PTR(-EIO);
out_mapmr_err:
- pr_err("rpcrdma: failed to map mr %p (%d/%d)\n",
- frwr->fr_mr, n, mr->mr_nents);
+ trace_xprtrdma_frwr_maperr(mr, n);
rpcrdma_mr_recycle(mr);
return ERR_PTR(-EIO);
}
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 54fbd70..062aee9 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -665,7 +665,7 @@ rpcrdma_prepare_msg_sges(struct rpcrdma_ia *ia, struct rpcrdma_req *req,
out_mapping_err:
rpcrdma_unmap_sendctx(sc);
- pr_err("rpcrdma: Send mapping error\n");
+ trace_xprtrdma_dma_maperr(sge[sge_no].addr);
return false;
}
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 85c51b8..719b69c 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1392,8 +1392,10 @@ __rpcrdma_dma_map_regbuf(struct rpcrdma_ia *ia, struct rpcrdma_regbuf *rb)
(void *)rb->rg_base,
rdmab_length(rb),
rb->rg_direction);
- if (ib_dma_mapping_error(device, rdmab_addr(rb)))
+ if (ib_dma_mapping_error(device, rdmab_addr(rb))) {
+ trace_xprtrdma_dma_maperr(rdmab_addr(rb));
return false;
+ }
rb->rg_device = device;
rb->rg_iov.lkey = ia->ri_pd->local_dma_lkey;