Chuck Lever bade4be69a svcrdma: Revert "svcrdma: Reduce Receive doorbell rate" ... I tested commit 43042b90ca ("svcrdma: Reduce Receive doorbell rate") with mlx4 (IB) and software iWARP and didn't find any issues. However, I recently got my hardware iWARP setup back on line (FastLinQ) and it's crashing hard on this commit (confirmed via bisect). The failure mode is complex. - After a connection is established, the first Receive completes normally. - But the second and third Receives have garbage in their Receive buffers. The server responds with ERR_VERS as a result. - When the client tears down the connection to retry, a couple of posted Receives flush twice, and that corrupts the recv_ctxt free list. - __svc_rdma_free then faults or loops infinitely while destroying the xprt's recv_ctxts. Since 43042b90ca ("svcrdma: Reduce Receive doorbell rate") does not fix a bug but is a scalability enhancement, it's safe and appropriate to revert it while working on a replacement. Fixes: 43042b90ca ("svcrdma: Reduce Receive doorbell rate") Signed-off-by: Chuck Lever <chuck.lever@oracle.com>		2021-03-11 15:26:07 -05:00
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backchannel.c	rpcrdma: Fix comments about reverse-direction operation	2021-02-05 11:16:56 -05:00
frwr_ops.c	xprtrdma: Refactor invocations of offset_in_page()	2021-02-05 11:16:56 -05:00
Makefile	svcrdma: Add a "parsed chunk list" data structure	2020-11-30 13:00:22 -05:00
module.c	SUNRPC: xprt_load_transport() needs to support the netid "rdma6"	2020-12-02 14:05:52 -05:00
rpc_rdma.c	xprtrdma: Clean up rpcrdma_prepare_readch()	2021-02-05 15:54:03 -05:00
svc_rdma_backchannel.c	svcrdma: disable timeouts on rdma backchannel	2021-03-06 16:41:48 -05:00
svc_rdma_pcl.c	svcrdma: Add a "parsed chunk list" data structure	2020-11-30 13:00:22 -05:00
svc_rdma_recvfrom.c	svcrdma: Revert "svcrdma: Reduce Receive doorbell rate"	2021-03-11 15:26:07 -05:00
svc_rdma_rw.c	svcrdma: Restore read and write stats	2021-01-25 09:36:28 -05:00
svc_rdma_sendto.c	svcrdma: Convert rdma_stat_sq_starve to a per-CPU counter	2021-01-25 09:36:28 -05:00
svc_rdma_transport.c	svcrdma: Hold private mutex while invoking rdma_accept()	2021-02-15 10:45:00 -05:00
svc_rdma.c	svcrdma: Deprecate stat variables that are no longer used	2021-01-25 09:36:28 -05:00
transport.c	NFSoRDmA Client updates for Linux 5.11	2020-12-15 20:08:41 -05:00
verbs.c	xprtrdma: Move rpcrdma_mr_put()	2020-11-11 10:52:18 -05:00
xprt_rdma.h	rpcrdma: Fix comments about reverse-direction operation	2021-02-05 11:16:56 -05:00