kernel/linux.git/include/linux/sunrpc/xprt.h, branch v5.15.3

Merge tag 'nfs-for-5.15-1' of git://git.linux-nfs.org/projects/anna/linux-nfs

2021-09-04T17:25:26+00:00

Pull NFS client updates from Anna Schumaker: "New Features: - Better client responsiveness when server isn't replying - Use refcount_t in sunrpc rpc_client refcount tracking - Add srcaddr and dst_port to the sunrpc sysfs info files - Add basic support for connection sharing between servers with multiple NICs` Bugfixes and Cleanups: - Sunrpc tracepoint cleanups - Disconnect after ib_post_send() errors to avoid deadlocks - Fix for tearing down rpcrdma_reps - Fix a potential pNFS layoutget livelock loop - pNFS layout barrier fixes - Fix a potential memory corruption in rpc_wake_up_queued_task_set_status() - Fix reconnection locking - Fix return value of get_srcport() - Remove rpcrdma_post_sends() - Remove pNFS dead code - Remove copy size restriction for inter-server copies - Overhaul the NFS callback service - Clean up sunrpc TCP socket shutdowns - Always provide aligned buffers to RPC read layers" * tag 'nfs-for-5.15-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (39 commits) NFS: Always provide aligned buffers to the RPC read layers NFSv4.1 add network transport when session trunking is detected SUNRPC enforce creation of no more than max_connect xprts NFSv4 introduce max_connect mount options SUNRPC add xps_nunique_destaddr_xprts to xprt_switch_info in sysfs SUNRPC keep track of number of transports to unique addresses NFSv3: Delete duplicate judgement in nfs3_async_handle_jukebox SUNRPC: Tweak TCP socket shutdown in the RPC client SUNRPC: Simplify socket shutdown when not reusing TCP ports NFSv4.2: remove restriction of copy size for inter-server copy. NFS: Clean up the synopsis of callback process_op() NFS: Extract the xdr_init_encode/decode() calls from decode_compound NFS: Remove unused callback void decoder NFS: Add a private local dispatcher for NFSv4 callback operations SUNRPC: Eliminate the RQ_AUTHERR flag SUNRPC: Set rq_auth_stat in the pg_authenticate() callout SUNRPC: Add svc_rqst::rq_auth_stat SUNRPC: Add dst_port to the sysfs xprt info file SUNRPC: Add srcaddr as a file in sysfs sunrpc: Fix return value of get_srcport() ...

SUNRPC: Move client-side disconnect injection

2021-08-20T17:50:32+00:00

Disconnect injection stress-tests the ability for both client and server implementations to behave resiliently in the face of network instability. Convert the existing client-side disconnect injection infrastructure to use the kernel's generic error injection facility. The generic facility has a richer set of injection criteria. Signed-off-by: Chuck Lever

SUNRPC: Fix potential memory corruption

2021-08-09T20:57:05+00:00

We really should not call rpc_wake_up_queued_task_set_status() with xprt->snd_task as an argument unless we are certain that is actually an rpc_task. Fixes: 0445f92c5d53 ("SUNRPC: Fix disconnection races") Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

sunrpc: remove an offlined xprt using sysfs

2021-07-08T18:03:24+00:00

Once a transport has been put offline, this transport can be also removed from the list of transports. Any tasks that have been stuck on this transport would find the next available active transport and be re-tried. This transport would be removed from the xprt_switch list and freed. Signed-off-by: Olga Kornievskaia Signed-off-by: Trond Myklebust

SUNRPC: take a xprt offline using sysfs

2021-07-08T18:03:24+00:00

Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia Signed-off-by: Trond Myklebust

SUNRPC mark the first transport

2021-07-08T18:03:24+00:00

When an RPC client gets created it's first transport is special and should be marked a main transport. Signed-off-by: Olga Kornievskaia Signed-off-by: Trond Myklebust

sunrpc: add dst_attr attributes to the sysfs xprt directory

2021-07-08T18:03:24+00:00

Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia Signed-off-by: Trond Myklebust

sunrpc: add add sysfs directory per xprt under each xprt_switch

2021-07-08T18:03:23+00:00

Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-- where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia Signed-off-by: Trond Myklebust

sunrpc: keep track of the xprt_class in rpc_xprt structure

2021-07-08T18:03:23+00:00

We need to keep track of the type for a given transport. Signed-off-by: Olga Kornievskaia Signed-off-by: Trond Myklebust

sunrpc: add xprt id

2021-07-08T18:03:23+00:00

This adds a unique identifier for a sunrpc transport in sysfs, which is similarly managed to the unique IDs of clients. Signed-off-by: Dan Aloni Signed-off-by: Olga Kornievskaia Signed-off-by: Trond Myklebust