diff options
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_transport.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index cdb04f8a0c25..5caf8e722a11 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -51,6 +51,7 @@ #include <linux/workqueue.h> #include <rdma/ib_verbs.h> #include <rdma/rdma_cm.h> +#include <rdma/rw.h> #include <linux/sunrpc/svc_rdma.h> #include <linux/export.h> #include "xprt_rdma.h" @@ -713,7 +714,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) struct ib_qp_init_attr qp_attr; struct ib_device *dev; struct sockaddr *sap; - unsigned int i; + unsigned int i, ctxts; int ret = 0; listen_rdma = container_of(xprt, struct svcxprt_rdma, sc_xprt); @@ -754,7 +755,14 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) newxprt->sc_max_bc_requests = 2; } newxprt->sc_fc_credits = cpu_to_be32(newxprt->sc_max_requests); - newxprt->sc_sq_depth = newxprt->sc_rq_depth; + ctxts = rdma_rw_mr_factor(dev, newxprt->sc_port_num, RPCSVC_MAXPAGES); + ctxts *= newxprt->sc_max_requests; + newxprt->sc_sq_depth = newxprt->sc_rq_depth + ctxts; + if (newxprt->sc_sq_depth > dev->attrs.max_qp_wr) { + pr_warn("svcrdma: reducing send depth to %d\n", + dev->attrs.max_qp_wr); + newxprt->sc_sq_depth = dev->attrs.max_qp_wr; + } atomic_set(&newxprt->sc_sq_avail, newxprt->sc_sq_depth); if (!svc_rdma_prealloc_ctxts(newxprt)) @@ -789,8 +797,8 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) qp_attr.event_handler = qp_event_handler; qp_attr.qp_context = &newxprt->sc_xprt; qp_attr.port_num = newxprt->sc_port_num; - qp_attr.cap.max_rdma_ctxs = newxprt->sc_max_requests; - qp_attr.cap.max_send_wr = newxprt->sc_sq_depth; + qp_attr.cap.max_rdma_ctxs = ctxts; + qp_attr.cap.max_send_wr = newxprt->sc_sq_depth - ctxts; qp_attr.cap.max_recv_wr = newxprt->sc_rq_depth; qp_attr.cap.max_send_sge = newxprt->sc_max_sge; qp_attr.cap.max_recv_sge = newxprt->sc_max_sge; @@ -858,6 +866,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) dprintk(" remote address : %pIS:%u\n", sap, rpc_get_port(sap)); dprintk(" max_sge : %d\n", newxprt->sc_max_sge); 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); |