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Commit Graph

11 Commits

Author SHA1 Message Date
Andy Grover
905d64c89e RDS: Remove dead struct from rds.h
flows are an obsolete date type.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
2010-09-08 18:16:55 -07:00
Andy Grover
a46f561b77 RDS: rds.h: Replace u_int[size]_t with uint[size]_t
Replace e.g. u_int32_t types with the more common uint32_t.

Reported-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Andy Grover <andy.grover@oracle.com>
2010-09-08 18:16:54 -07:00
Andy Grover
fd128dfa50 RDS: Add rds.h to exported headers list
Also, a number of changes were made based on the assumption that
rds.h wasn't exported, so roll these back.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
2010-09-08 18:16:52 -07:00
Andy Grover
20c72bd5f5 RDS: Implement masked atomic operations
Add two CMSGs for masked versions of cswp and fadd. args
struct modified to use a union for different atomic op type's
arguments. Change IB to do masked atomic ops. Atomic op type
in rds_message similarly unionized.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
2010-09-08 18:16:51 -07:00
Andy Grover
2c3a5f9abb RDS: Add flag for silent ops. Do atomic op before RDMA
Add a flag to the API so users can indicate they want
silent operations. This is needed because silent ops
cannot be used with USE_ONCE MRs, so we can't just
assume silent.

Also, change send_xmit to do atomic op before rdma op if
both are present, and centralize the hairy logic to determine if
we want to attempt silent, or not.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
2010-09-08 18:12:06 -07:00
Andy Grover
15133f6e67 RDS: Implement atomic operations
Implement a CMSG-based interface to do FADD and CSWP ops.

Alter send routines to handle atomic ops.

Add atomic counters to stats.

Add xmit_atomic() to struct rds_transport

Inline rds_ib_send_unmap_rdma into unmap_rm

Signed-off-by: Andy Grover <andy.grover@oracle.com>
2010-09-08 18:11:41 -07:00
Changli Gao
fcb12fd223 net: rds: remove duplication type definitions
__be* are defined in linux/types.h now, and in fact, rds.h isn't exported
to user space even.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-22 21:09:04 -07:00
Eric Dumazet
bc10502dba net: use __packed annotation
cleanup patch.

Use new __packed annotation in net/ and include/
(except netfilter)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-03 03:21:52 -07:00
Andy Grover
244546f0d3 RDS: Add GET_MR_FOR_DEST sockopt
RDS currently supports a GET_MR sockopt to establish a
memory region (MR) for a chunk of memory. However, the fastreg
method ties a MR to a particular destination. The GET_MR_FOR_DEST
sockopt allows the remote machine to be specified, and thus
support for fastreg (aka FRWRs).

Note that this patch does *not* do all of this - it simply
implements the new sockopt in terms of the old one, so applications
can begin to use the new sockopt in preparation for cutover to
FRWRs.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-30 15:06:37 -07:00
Andy Grover
70041088e3 RDS: Add TCP transport to RDS
This code allows RDS to be tunneled over a TCP connection.

RDMA operations are disabled when using TCP transport,
but this frees RDS from the IB/RDMA stack dependency, and allows
it to be used with standard Ethernet adapters, or in a VM.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-23 19:13:02 -07:00
Andy Grover
db49b9d26c RDS: Add userspace header
Applications include this header in order to use RDS sockets.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26 23:42:11 -08:00