AuxXxilium/linux_dsm_epyc7002
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99722fe4d5
linux_dsm_epyc7002/include/linux/sunrpc
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Chuck Lever 99722fe4d5 svcrdma: Persistently allocate and DMA-map Send buffers 
While sending each RPC Reply, svc_rdma_sendto allocates and DMA-
maps a separate buffer where the RPC/RDMA transport header is
constructed. The buffer is unmapped and released in the Send
completion handler. This is significant per-RPC overhead,
especially for small RPCs.

Instead, allocate and DMA-map a buffer, and cache it in each
svc_rdma_send_ctxt. This buffer and its mapping can be re-used
for each RPC, saving the cost of memory allocation and DMA
mapping.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-05-11 15:48:57 -04:00
..
addr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
auth_gss.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
auth.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bc_xprt.h
cache.h sunrpc: make the function arg as const 2017-11-27 16:45:11 -05:00
clnt.h xprtrdma: "Support" call-only RPCs 2018-04-10 16:06:22 -04:00
debug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gss_api.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gss_asn1.h
gss_err.h
gss_krb5_enctypes.h
gss_krb5.h
metrics.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
msg_prot.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rpc_pipe_fs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rpc_rdma.h xprtrdma: Update copyright notices 2017-11-17 16:43:43 -05:00
sched.h SUNRPC: Queue latency-sensitive socket tasks to xprtiod 2018-02-07 09:25:52 -05:00
stats.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
svc_rdma.h svcrdma: Persistently allocate and DMA-map Send buffers 2018-05-11 15:48:57 -04:00
svc_xprt.h sunrpc: Save remote presentation address in svc_xprt for trace events 2018-04-03 15:08:11 -04:00
svc.h NFSD: Clean up legacy NFS SYMLINK argument XDR decoders 2018-04-03 15:08:16 -04:00
svcauth_gss.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
svcauth.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
svcsock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
timer.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
types.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xdr.h NFSv4; Clean up XDR encoding of type bitmap4 2018-04-10 16:06:22 -04:00
xprt.h SUNRPC: Make num_reqs a non-atomic integer 2018-04-10 16:06:22 -04:00
xprtmultipath.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xprtrdma.h xprtrdma: Replace all usage of "frmr" with "frwr" 2018-01-16 11:19:50 -05:00
xprtsock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00