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-rw-r--r--net/sunrpc/xprtrdma/svc_rdma.c4
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_transport.c22
2 files changed, 11 insertions, 15 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c
index a4a8f6989ee7..dd8a431dc2ae 100644
--- a/net/sunrpc/xprtrdma/svc_rdma.c
+++ b/net/sunrpc/xprtrdma/svc_rdma.c
@@ -51,9 +51,9 @@
#define RPCDBG_FACILITY RPCDBG_SVCXPRT
/* RPC/RDMA parameters */
-unsigned int svcrdma_ord = RPCRDMA_ORD;
+unsigned int svcrdma_ord = 16; /* historical default */
static unsigned int min_ord = 1;
-static unsigned int max_ord = 4096;
+static unsigned int max_ord = 255;
unsigned int svcrdma_max_requests = RPCRDMA_MAX_REQUESTS;
unsigned int svcrdma_max_bc_requests = RPCRDMA_MAX_BC_REQUESTS;
static unsigned int min_max_requests = 4;
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index 135ae175ca8e..7b2f4d3a2543 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -762,13 +762,6 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
if (!svc_rdma_prealloc_ctxts(newxprt))
goto errout;
- /*
- * Limit ORD based on client limit, local device limit, and
- * configured svcrdma limit.
- */
- newxprt->sc_ord = min_t(size_t, dev->attrs.max_qp_rd_atom, newxprt->sc_ord);
- newxprt->sc_ord = min_t(size_t, svcrdma_ord, newxprt->sc_ord);
-
newxprt->sc_pd = ib_alloc_pd(dev, 0);
if (IS_ERR(newxprt->sc_pd)) {
dprintk("svcrdma: error creating PD for connect request\n");
@@ -843,15 +836,18 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
set_bit(RDMAXPRT_CONN_PENDING, &newxprt->sc_flags);
memset(&conn_param, 0, sizeof conn_param);
conn_param.responder_resources = 0;
- conn_param.initiator_depth = newxprt->sc_ord;
+ conn_param.initiator_depth = min_t(int, newxprt->sc_ord,
+ dev->attrs.max_qp_init_rd_atom);
+ if (!conn_param.initiator_depth) {
+ dprintk("svcrdma: invalid ORD setting\n");
+ ret = -EINVAL;
+ goto errout;
+ }
conn_param.private_data = &pmsg;
conn_param.private_data_len = sizeof(pmsg);
ret = rdma_accept(newxprt->sc_cm_id, &conn_param);
- if (ret) {
- dprintk("svcrdma: failed to accept new connection, ret=%d\n",
- ret);
+ if (ret)
goto errout;
- }
dprintk("svcrdma: new connection %p accepted:\n", newxprt);
sap = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.src_addr;
@@ -862,7 +858,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
dprintk(" sq_depth : %d\n", newxprt->sc_sq_depth);
dprintk(" rdma_rw_ctxs : %d\n", ctxts);
dprintk(" max_requests : %d\n", newxprt->sc_max_requests);
- dprintk(" ord : %d\n", newxprt->sc_ord);
+ dprintk(" ord : %d\n", conn_param.initiator_depth);
return &newxprt->sc_xprt;