Chuck Lever 8d38de6564 xprtrdma: Make FRWR send queue entry accounting more accurate ... Verbs providers may perform house-keeping on the Send Queue during each signaled send completion. It is necessary therefore for a verbs consumer (like xprtrdma) to occasionally force a signaled send completion if it runs unsignaled most of the time. xprtrdma does not require signaled completions for Send or FastReg Work Requests, but does signal some LocalInv Work Requests. To ensure that Send Queue house-keeping can run before the Send Queue is more than half-consumed, xprtrdma forces a signaled completion on occasion by counting the number of Send Queue Entries it consumes. It currently does this by counting each ib_post_send as one Entry. Commit c9918ff56d ("xprtrdma: Add ro_unmap_sync method for FRWR") introduced the ability for frwr_op_unmap_sync to post more than one Work Request with a single post_send. Thus the underlying assumption of one Send Queue Entry per ib_post_send is no longer true. Also, FastReg Work Requests are currently never signaled. They should be signaled once in a while, just as Send is, to keep the accounting of consumed SQEs accurate. While we're here, convert the CQCOUNT macros to the currently preferred kernel coding style, which is inline functions. Fixes: c9918ff56d ("xprtrdma: Add ro_unmap_sync method for FRWR") Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>		2016-11-29 16:45:44 -05:00
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backchannel.c	xprtrdma: Cap size of callback buffer resources	2016-11-29 16:45:44 -05:00
fmr_ops.c	xprtrdma: Basic support for Remote Invalidation	2016-09-19 13:08:38 -04:00
frwr_ops.c	xprtrdma: Make FRWR send queue entry accounting more accurate	2016-11-29 16:45:44 -05:00
Makefile	xprtrdma: Remove ALLPHYSICAL memory registration mode	2016-07-11 15:50:43 -04:00
module.c
rpc_rdma.c	xprtrdma: Eliminate rpcrdma_receive_worker()	2016-09-19 13:08:38 -04:00
svc_rdma_backchannel.c	svcrdma: backchannel cannot share a page for send and rcv buffers	2016-11-01 15:23:58 -04:00
svc_rdma_marshal.c	svcrdma: Generalize svc_rdma_xdr_decode_req()	2016-05-13 15:53:06 -04:00
svc_rdma_recvfrom.c	svcrdma: Tail iovec leaves an orphaned DMA mapping	2016-09-23 10:18:52 -04:00
svc_rdma_sendto.c	svcrdma: support Remote Invalidation	2016-09-23 10:18:54 -04:00
svc_rdma_transport.c	sunrpc: svc_age_temp_xprts_now should not call setsockopt non-tcp transports	2016-11-14 10:30:58 -05:00
svc_rdma.c
transport.c	xprtrdma: Support larger inline thresholds	2016-09-19 13:08:38 -04:00
verbs.c	xprtrdma: Make FRWR send queue entry accounting more accurate	2016-11-29 16:45:44 -05:00
xprt_rdma.h	xprtrdma: Make FRWR send queue entry accounting more accurate	2016-11-29 16:45:44 -05:00