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Commit 32d3b6de authored by Peng Tao's avatar Peng Tao Committed by Greg Kroah-Hartman
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staging/lustre: remove server macros from lustre_net.h 

These macros are only used on server side.

Cc: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: default avatarPeng Tao <bergwolf@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c3e3e88a
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drivers/staging/lustre/lustre/include/lustre_net.h
View file @ 32d3b6de
......@@ -264,241 +264,7 @@
#define LDLM_MAXREQSIZE (5 * 1024)
#define LDLM_MAXREPSIZE (1024)
/*
* MDS threads constants:
*
* Please see examples in "Thread Constants", MDS threads number will be at
* the comparable level of old versions, unless the server has many cores.
*/
#ifndef MDS_MAX_THREADS
#define MDS_MAX_THREADS 1024
#define MDS_MAX_OTHR_THREADS 256
#else /* MDS_MAX_THREADS */
#if MDS_MAX_THREADS < PTLRPC_NTHRS_INIT
#undef MDS_MAX_THREADS
#define MDS_MAX_THREADS PTLRPC_NTHRS_INIT
#endif
#define MDS_MAX_OTHR_THREADS max(PTLRPC_NTHRS_INIT, MDS_MAX_THREADS / 2)
#endif
/* default service */
#define MDS_THR_FACTOR 8
#define MDS_NTHRS_INIT PTLRPC_NTHRS_INIT
#define MDS_NTHRS_MAX MDS_MAX_THREADS
#define MDS_NTHRS_BASE min(64, MDS_NTHRS_MAX)
/* read-page service */
#define MDS_RDPG_THR_FACTOR 4
#define MDS_RDPG_NTHRS_INIT PTLRPC_NTHRS_INIT
#define MDS_RDPG_NTHRS_MAX MDS_MAX_OTHR_THREADS
#define MDS_RDPG_NTHRS_BASE min(48, MDS_RDPG_NTHRS_MAX)
/* these should be removed when we remove setattr service in the future */
#define MDS_SETA_THR_FACTOR 4
#define MDS_SETA_NTHRS_INIT PTLRPC_NTHRS_INIT
#define MDS_SETA_NTHRS_MAX MDS_MAX_OTHR_THREADS
#define MDS_SETA_NTHRS_BASE min(48, MDS_SETA_NTHRS_MAX)
/* non-affinity threads */
#define MDS_OTHR_NTHRS_INIT PTLRPC_NTHRS_INIT
#define MDS_OTHR_NTHRS_MAX MDS_MAX_OTHR_THREADS
#define MDS_NBUFS 64
/**
* Assume file name length = FNAME_MAX = 256 (true for ext3).
* path name length = PATH_MAX = 4096
* LOV MD size max = EA_MAX = 24 * 2000
* (NB: 24 is size of lov_ost_data)
* LOV LOGCOOKIE size max = 32 * 2000
* (NB: 32 is size of llog_cookie)
* symlink: FNAME_MAX + PATH_MAX <- largest
* link: FNAME_MAX + PATH_MAX (mds_rec_link < mds_rec_create)
* rename: FNAME_MAX + FNAME_MAX
* open: FNAME_MAX + EA_MAX
*
* MDS_MAXREQSIZE ~= 4736 bytes =
* lustre_msg + ldlm_request + mdt_body + mds_rec_create + FNAME_MAX + PATH_MAX
* MDS_MAXREPSIZE ~= 8300 bytes = lustre_msg + llog_header
*
* Realistic size is about 512 bytes (20 character name + 128 char symlink),
* except in the open case where there are a large number of OSTs in a LOV.
*/
#define MDS_MAXREQSIZE (5 * 1024) /* >= 4736 */
#define MDS_MAXREPSIZE (9 * 1024) /* >= 8300 */
/**
* MDS incoming request with LOV EA
* 24 = sizeof(struct lov_ost_data), i.e: replay of opencreate
*/
#define MDS_LOV_MAXREQSIZE max(MDS_MAXREQSIZE, \
362 + LOV_MAX_STRIPE_COUNT * 24)
/**
* MDS outgoing reply with LOV EA
*
* NB: max reply size Lustre 2.4+ client can get from old MDS is:
* LOV_MAX_STRIPE_COUNT * (llog_cookie + lov_ost_data) + extra bytes
*
* but 2.4 or later MDS will never send reply with llog_cookie to any
* version client. This macro is defined for server side reply buffer size.
*/
#define MDS_LOV_MAXREPSIZE MDS_LOV_MAXREQSIZE
/**
* This is the size of a maximum REINT_SETXATTR request:
*
* lustre_msg 56 (32 + 4 x 5 + 4)
* ptlrpc_body 184
* mdt_rec_setxattr 136
* lustre_capa 120
* name 256 (XATTR_NAME_MAX)
* value 65536 (XATTR_SIZE_MAX)
*/
#define MDS_EA_MAXREQSIZE 66288
/**
* These are the maximum request and reply sizes (rounded up to 1 KB
* boundaries) for the "regular" MDS_REQUEST_PORTAL and MDS_REPLY_PORTAL.
*/
#define MDS_REG_MAXREQSIZE (((max(MDS_EA_MAXREQSIZE, \
MDS_LOV_MAXREQSIZE) + 1023) >> 10) << 10)
#define MDS_REG_MAXREPSIZE MDS_REG_MAXREQSIZE
/**
* The update request includes all of updates from the create, which might
* include linkea (4K maxim), together with other updates, we set it to 9K:
* lustre_msg + ptlrpc_body + UPDATE_BUF_SIZE (8K)
*/
#define MDS_OUT_MAXREQSIZE (9 * 1024)
#define MDS_OUT_MAXREPSIZE MDS_MAXREPSIZE
/** MDS_BUFSIZE = max_reqsize (w/o LOV EA) + max sptlrpc payload size */
#define MDS_BUFSIZE max(MDS_MAXREQSIZE + SPTLRPC_MAX_PAYLOAD, \
8 * 1024)
/**
* MDS_REG_BUFSIZE should at least be MDS_REG_MAXREQSIZE + SPTLRPC_MAX_PAYLOAD.
* However, we need to allocate a much larger buffer for it because LNet
* requires each MD(rqbd) has at least MDS_REQ_MAXREQSIZE bytes left to avoid
* dropping of maximum-sized incoming request. So if MDS_REG_BUFSIZE is only a
* little larger than MDS_REG_MAXREQSIZE, then it can only fit in one request
* even there are about MDS_REG_MAX_REQSIZE bytes left in a rqbd, and memory
* utilization is very low.
*
* In the meanwhile, size of rqbd can't be too large, because rqbd can't be
* reused until all requests fit in it have been processed and released,
* which means one long blocked request can prevent the rqbd be reused.
* Now we set request buffer size to 160 KB, so even each rqbd is unlinked
* from LNet with unused 65 KB, buffer utilization will be about 59%.
* Please check LU-2432 for details.
*/
#define MDS_REG_BUFSIZE max(MDS_REG_MAXREQSIZE + SPTLRPC_MAX_PAYLOAD, \
160 * 1024)
/**
* MDS_OUT_BUFSIZE = max_out_reqsize + max sptlrpc payload (~1K) which is
* about 10K, for the same reason as MDS_REG_BUFSIZE, we also give some
* extra bytes to each request buffer to improve buffer utilization rate.
*/
#define MDS_OUT_BUFSIZE max(MDS_OUT_MAXREQSIZE + SPTLRPC_MAX_PAYLOAD, \
24 * 1024)
/** FLD_MAXREQSIZE == lustre_msg + __u32 padding + ptlrpc_body + opc */
#define FLD_MAXREQSIZE (160)
/** FLD_MAXREPSIZE == lustre_msg + ptlrpc_body */
#define FLD_MAXREPSIZE (152)
#define FLD_BUFSIZE (1 << 12)
/**
* SEQ_MAXREQSIZE == lustre_msg + __u32 padding + ptlrpc_body + opc + lu_range +
* __u32 padding */
#define SEQ_MAXREQSIZE (160)
/** SEQ_MAXREPSIZE == lustre_msg + ptlrpc_body + lu_range */
#define SEQ_MAXREPSIZE (152)
#define SEQ_BUFSIZE (1 << 12)
/** MGS threads must be >= 3, see bug 22458 comment #28 */
#define MGS_NTHRS_INIT (PTLRPC_NTHRS_INIT + 1)
#define MGS_NTHRS_MAX 32
#define MGS_NBUFS 64
#define MGS_BUFSIZE (8 * 1024)
#define MGS_MAXREQSIZE (7 * 1024)
#define MGS_MAXREPSIZE (9 * 1024)
/*
* OSS threads constants:
*
* Given 8 as factor and 64 as base threads number
*
* example 1):
* On 8-core server configured to 2 partitions, we will have
* 64 + 8 * 4 = 96 threads for each partition, 192 total threads.
*
* example 2):
* On 32-core machine configured to 4 partitions, we will have
* 64 + 8 * 8 = 112 threads for each partition, so total threads number
* will be 112 * 4 = 448.
*
* example 3):
* On 64-core machine configured to 4 partitions, we will have
* 64 + 16 * 8 = 192 threads for each partition, so total threads number
* will be 192 * 4 = 768 which is above limit OSS_NTHRS_MAX(512), so we
* cut off the value to OSS_NTHRS_MAX(512) / 4 which is 128 threads
* for each partition.
*
* So we can see that with these constants, threads number wil be at the
* similar level of old versions, unless the server has many cores.
*/
/* depress threads factor for VM with small memory size */
#define OSS_THR_FACTOR min_t(int, 8, \
NUM_CACHEPAGES >> (28 - PAGE_CACHE_SHIFT))
#define OSS_NTHRS_INIT (PTLRPC_NTHRS_INIT + 1)
#define OSS_NTHRS_BASE 64
#define OSS_NTHRS_MAX 512
/* threads for handling "create" request */
#define OSS_CR_THR_FACTOR 1
#define OSS_CR_NTHRS_INIT PTLRPC_NTHRS_INIT
#define OSS_CR_NTHRS_BASE 8
#define OSS_CR_NTHRS_MAX 64
/**
* OST_IO_MAXREQSIZE ~=
* lustre_msg + ptlrpc_body + obdo + obd_ioobj +
* DT_MAX_BRW_PAGES * niobuf_remote
*
* - single object with 16 pages is 512 bytes
* - OST_IO_MAXREQSIZE must be at least 1 page of cookies plus some spillover
* - Must be a multiple of 1024
* - actual size is about 18K
*/
#define _OST_MAXREQSIZE_SUM (sizeof(struct lustre_msg) + \
sizeof(struct ptlrpc_body) + \
sizeof(struct obdo) + \
sizeof(struct obd_ioobj) + \
sizeof(struct niobuf_remote) * DT_MAX_BRW_PAGES)
/**
* FIEMAP request can be 4K+ for now
*/
#define OST_MAXREQSIZE (5 * 1024)
#define OST_IO_MAXREQSIZE max_t(int, OST_MAXREQSIZE, \
(((_OST_MAXREQSIZE_SUM - 1) | (1024 - 1)) + 1))
#define OST_MAXREPSIZE (9 * 1024)
#define OST_IO_MAXREPSIZE OST_MAXREPSIZE
#define OST_NBUFS 64
/** OST_BUFSIZE = max_reqsize + max sptlrpc payload size */
#define OST_BUFSIZE max_t(int, OST_MAXREQSIZE + 1024, 16 * 1024)
/**
* OST_IO_MAXREQSIZE is 18K, giving extra 46K can increase buffer utilization
* rate of request buffer, please check comment of MDS_LOV_BUFSIZE for details.
*/
#define OST_IO_BUFSIZE max_t(int, OST_IO_MAXREQSIZE + 1024, 64 * 1024)
/* Macro to hide a typecast. */
#define ptlrpc_req_async_args(req) ((void *)&req->rq_async_args)
......
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