diff options
| -rw-r--r-- | include/rdma/ib_verbs.h | 16 | ||||
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_recvfrom.c | 4 |
2 files changed, 18 insertions, 2 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 6bbbc86d39d9..2cf23b130f9f 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1864,6 +1864,22 @@ static inline bool rdma_cap_ib_mcast(struct ib_device *device, u8 port_num) return rdma_cap_ib_sa(device, port_num); } +/** + * rdma_cap_read_multi_sge - Check if the port of device has the capability + * RDMA Read Multiple Scatter-Gather Entries. + * + * @device: Device to be checked + * @port_num: Port number of the device + * + * Return false when port of the device don't support + * RDMA Read Multiple Scatter-Gather Entries. + */ +static inline bool rdma_cap_read_multi_sge(struct ib_device *device, + u8 port_num) +{ + return !rdma_protocol_iwarp(device, port_num); +} + int ib_query_gid(struct ib_device *device, u8 port_num, int index, union ib_gid *gid); diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c index 2cc625db16aa..86b44164172b 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c +++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c @@ -117,8 +117,8 @@ static void rdma_build_arg_xdr(struct svc_rqst *rqstp, static int rdma_read_max_sge(struct svcxprt_rdma *xprt, int sge_count) { - if (rdma_protocol_iwarp(xprt->sc_cm_id->device, - xprt->sc_cm_id->port_num)) + if (!rdma_cap_read_multi_sge(xprt->sc_cm_id->device, + xprt->sc_cm_id->port_num)) return 1; else return min_t(int, sge_count, xprt->sc_max_sge); |