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authorOlga Kornievskaia <kolga@netapp.com>2021-06-08 22:59:15 +0300
committerTrond Myklebust <trond.myklebust@hammerspace.com>2021-07-08 21:03:23 +0300
commitd3abc73987fd2a5992a9bdae9f44fa43d1b4db70 (patch)
tree627d8490ed9f2e0ec16b1ebe6f7926eacb10e3d6
parent5b9268727f299f87432e8b035e9e8bec8ba13e8d (diff)
downloadlinux-d3abc73987fd2a5992a9bdae9f44fa43d1b4db70.tar.xz
sunrpc: keep track of the xprt_class in rpc_xprt structure
We need to keep track of the type for a given transport. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
-rw-r--r--include/linux/sunrpc/xprt.h2
-rw-r--r--net/sunrpc/xprtrdma/transport.c2
-rw-r--r--net/sunrpc/xprtsock.c9
3 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 1fbc470ce205..7efc6c0a5455 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -53,6 +53,7 @@ enum rpc_display_format_t {
struct rpc_task;
struct rpc_xprt;
+struct xprt_class;
struct seq_file;
struct svc_serv;
struct net;
@@ -289,6 +290,7 @@ struct rpc_xprt {
atomic_t inject_disconnect;
#endif
struct rcu_head rcu;
+ const struct xprt_class *xprt_class;
};
#if defined(CONFIG_SUNRPC_BACKCHANNEL)
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 19a49d26b1e4..9c2ffc67c0fd 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -73,6 +73,7 @@ unsigned int xprt_rdma_max_inline_read = RPCRDMA_DEF_INLINE;
unsigned int xprt_rdma_max_inline_write = RPCRDMA_DEF_INLINE;
unsigned int xprt_rdma_memreg_strategy = RPCRDMA_FRWR;
int xprt_rdma_pad_optimize;
+static struct xprt_class xprt_rdma;
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
@@ -349,6 +350,7 @@ xprt_setup_rdma(struct xprt_create *args)
/* Ensure xprt->addr holds valid server TCP (not RDMA)
* address, for any side protocols which peek at it */
xprt->prot = IPPROTO_TCP;
+ xprt->xprt_class = &xprt_rdma;
xprt->addrlen = args->addrlen;
memcpy(&xprt->addr, sap, xprt->addrlen);
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 316d04945587..2ad4d0df45fe 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -91,6 +91,11 @@ static unsigned int xprt_max_resvport_limit = RPC_MAX_RESVPORT;
static struct ctl_table_header *sunrpc_table_header;
+static struct xprt_class xs_local_transport;
+static struct xprt_class xs_udp_transport;
+static struct xprt_class xs_tcp_transport;
+static struct xprt_class xs_bc_tcp_transport;
+
/*
* FIXME: changing the UDP slot table size should also resize the UDP
* socket buffers for existing UDP transports
@@ -2779,6 +2784,7 @@ static struct rpc_xprt *xs_setup_local(struct xprt_create *args)
transport = container_of(xprt, struct sock_xprt, xprt);
xprt->prot = 0;
+ xprt->xprt_class = &xs_local_transport;
xprt->max_payload = RPC_MAX_FRAGMENT_SIZE;
xprt->bind_timeout = XS_BIND_TO;
@@ -2848,6 +2854,7 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
transport = container_of(xprt, struct sock_xprt, xprt);
xprt->prot = IPPROTO_UDP;
+ xprt->xprt_class = &xs_udp_transport;
/* XXX: header size can vary due to auth type, IPv6, etc. */
xprt->max_payload = (1U << 16) - (MAX_HEADER << 3);
@@ -2928,6 +2935,7 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
transport = container_of(xprt, struct sock_xprt, xprt);
xprt->prot = IPPROTO_TCP;
+ xprt->xprt_class = &xs_tcp_transport;
xprt->max_payload = RPC_MAX_FRAGMENT_SIZE;
xprt->bind_timeout = XS_BIND_TO;
@@ -3001,6 +3009,7 @@ static struct rpc_xprt *xs_setup_bc_tcp(struct xprt_create *args)
transport = container_of(xprt, struct sock_xprt, xprt);
xprt->prot = IPPROTO_TCP;
+ xprt->xprt_class = &xs_bc_tcp_transport;
xprt->max_payload = RPC_MAX_FRAGMENT_SIZE;
xprt->timeout = &xs_tcp_default_timeout;