Release 4.11 drivers/staging/lustre/lnet/selftest/selftest.h
/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
* http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*
* lnet/selftest/selftest.h
*
* Author: Isaac Huang <isaac@clusterfs.com>
*/
#ifndef __SELFTEST_SELFTEST_H__
#define __SELFTEST_SELFTEST_H__
#define LNET_ONLY
#include "../../include/linux/libcfs/libcfs.h"
#include "../../include/linux/lnet/lnet.h"
#include "../../include/linux/lnet/lib-lnet.h"
#include "../../include/linux/lnet/lib-types.h"
#include "../../include/linux/lnet/lnetst.h"
#include "rpc.h"
#include "timer.h"
#ifndef MADE_WITHOUT_COMPROMISE
#define MADE_WITHOUT_COMPROMISE
#endif
#define SWI_STATE_NEWBORN 0
#define SWI_STATE_REPLY_SUBMITTED 1
#define SWI_STATE_REPLY_SENT 2
#define SWI_STATE_REQUEST_SUBMITTED 3
#define SWI_STATE_REQUEST_SENT 4
#define SWI_STATE_REPLY_RECEIVED 5
#define SWI_STATE_BULK_STARTED 6
#define SWI_STATE_DONE 10
/* forward refs */
struct srpc_service;
struct srpc_service_cd;
struct sfw_test_unit;
struct sfw_test_instance;
/* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
* services, e.g. create/modify session.
*/
#define SRPC_SERVICE_DEBUG 0
#define SRPC_SERVICE_MAKE_SESSION 1
#define SRPC_SERVICE_REMOVE_SESSION 2
#define SRPC_SERVICE_BATCH 3
#define SRPC_SERVICE_TEST 4
#define SRPC_SERVICE_QUERY_STAT 5
#define SRPC_SERVICE_JOIN 6
#define SRPC_FRAMEWORK_SERVICE_MAX_ID 10
/* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
#define SRPC_SERVICE_BRW 11
#define SRPC_SERVICE_PING 12
#define SRPC_SERVICE_MAX_ID 12
#define SRPC_REQUEST_PORTAL 50
/* a lazy portal for framework RPC requests */
#define SRPC_FRAMEWORK_REQUEST_PORTAL 51
/* all reply/bulk RDMAs go to this portal */
#define SRPC_RDMA_PORTAL 52
static inline enum srpc_msg_type
srpc_service2request(int service)
{
switch (service) {
default:
LBUG();
case SRPC_SERVICE_DEBUG:
return SRPC_MSG_DEBUG_REQST;
case SRPC_SERVICE_MAKE_SESSION:
return SRPC_MSG_MKSN_REQST;
case SRPC_SERVICE_REMOVE_SESSION:
return SRPC_MSG_RMSN_REQST;
case SRPC_SERVICE_BATCH:
return SRPC_MSG_BATCH_REQST;
case SRPC_SERVICE_TEST:
return SRPC_MSG_TEST_REQST;
case SRPC_SERVICE_QUERY_STAT:
return SRPC_MSG_STAT_REQST;
case SRPC_SERVICE_BRW:
return SRPC_MSG_BRW_REQST;
case SRPC_SERVICE_PING:
return SRPC_MSG_PING_REQST;
case SRPC_SERVICE_JOIN:
return SRPC_MSG_JOIN_REQST;
}
}
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static inline enum srpc_msg_type
srpc_service2reply(int service)
{
return srpc_service2request(service) + 1;
}
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enum srpc_event_type {
SRPC_BULK_REQ_RCVD = 1, /* passive bulk request(PUT sink/GET source)
* received
*/
SRPC_BULK_PUT_SENT = 2, /* active bulk PUT sent (source) */
SRPC_BULK_GET_RPLD = 3, /* active bulk GET replied (sink) */
SRPC_REPLY_RCVD = 4, /* incoming reply received */
SRPC_REPLY_SENT = 5, /* outgoing reply sent */
SRPC_REQUEST_RCVD = 6, /* incoming request received */
SRPC_REQUEST_SENT = 7, /* outgoing request sent */
};
/* RPC event */
struct srpc_event {
enum srpc_event_type ev_type; /* what's up */
lnet_event_kind_t ev_lnet; /* LNet event type */
int ev_fired; /* LNet event fired? */
int ev_status; /* LNet event status */
void *ev_data; /* owning server/client RPC */
};
/* bulk descriptor */
struct srpc_bulk {
int bk_len; /* len of bulk data */
lnet_handle_md_t bk_mdh;
int bk_sink; /* sink/source */
int bk_niov; /* # iov in bk_iovs */
lnet_kiov_t bk_iovs[0];
};
/* message buffer descriptor */
struct srpc_buffer {
struct list_head buf_list; /* chain on srpc_service::*_msgq */
struct srpc_msg buf_msg;
lnet_handle_md_t buf_mdh;
lnet_nid_t buf_self;
lnet_process_id_t buf_peer;
};
struct swi_workitem;
typedef int (*swi_action_t) (struct swi_workitem *);
struct swi_workitem {
struct cfs_wi_sched *swi_sched;
struct cfs_workitem swi_workitem;
swi_action_t swi_action;
int swi_state;
};
/* server-side state of a RPC */
struct srpc_server_rpc {
/* chain on srpc_service::*_rpcq */
struct list_head srpc_list;
struct srpc_service_cd *srpc_scd;
struct swi_workitem srpc_wi;
struct srpc_event srpc_ev; /* bulk/reply event */
lnet_nid_t srpc_self;
lnet_process_id_t srpc_peer;
struct srpc_msg srpc_replymsg;
lnet_handle_md_t srpc_replymdh;
struct srpc_buffer *srpc_reqstbuf;
struct srpc_bulk *srpc_bulk;
unsigned int srpc_aborted; /* being given up */
int srpc_status;
void (*srpc_done)(struct srpc_server_rpc *);
};
/* client-side state of a RPC */
struct srpc_client_rpc {
struct list_head crpc_list; /* chain on user's lists */
spinlock_t crpc_lock; /* serialize */
int crpc_service;
atomic_t crpc_refcount;
int crpc_timeout; /* # seconds to wait for reply */
struct stt_timer crpc_timer;
struct swi_workitem crpc_wi;
lnet_process_id_t crpc_dest;
void (*crpc_done)(struct srpc_client_rpc *);
void (*crpc_fini)(struct srpc_client_rpc *);
int crpc_status; /* completion status */
void *crpc_priv; /* caller data */
/* state flags */
unsigned int crpc_aborted:1; /* being given up */
unsigned int crpc_closed:1; /* completed */
/* RPC events */
struct srpc_event crpc_bulkev; /* bulk event */
struct srpc_event crpc_reqstev; /* request event */
struct srpc_event crpc_replyev; /* reply event */
/* bulk, request(reqst), and reply exchanged on wire */
struct srpc_msg crpc_reqstmsg;
struct srpc_msg crpc_replymsg;
lnet_handle_md_t crpc_reqstmdh;
lnet_handle_md_t crpc_replymdh;
struct srpc_bulk crpc_bulk;
};
#define srpc_client_rpc_size(rpc) \
offsetof(struct srpc_client_rpc, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
#define srpc_client_rpc_addref(rpc) \
do { \
CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n", \
(rpc), libcfs_id2str((rpc)->crpc_dest), \
atomic_read(&(rpc)->crpc_refcount)); \
LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0); \
atomic_inc(&(rpc)->crpc_refcount); \
} while (0)
#define srpc_client_rpc_decref(rpc) \
do { \
CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n", \
(rpc), libcfs_id2str((rpc)->crpc_dest), \
atomic_read(&(rpc)->crpc_refcount)); \
LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0); \
if (atomic_dec_and_test(&(rpc)->crpc_refcount)) \
srpc_destroy_client_rpc(rpc); \
} while (0)
#define srpc_event_pending(rpc) (!(rpc)->crpc_bulkev.ev_fired || \
!(rpc)->crpc_reqstev.ev_fired || \
!(rpc)->crpc_replyev.ev_fired)
/* CPU partition data of srpc service */
struct srpc_service_cd {
/** serialize */
spinlock_t scd_lock;
/** backref to service */
struct srpc_service *scd_svc;
/** event buffer */
struct srpc_event scd_ev;
/** free RPC descriptors */
struct list_head scd_rpc_free;
/** in-flight RPCs */
struct list_head scd_rpc_active;
/** workitem for posting buffer */
struct swi_workitem scd_buf_wi;
/** CPT id */
int scd_cpt;
/** error code for scd_buf_wi */
int scd_buf_err;
/** timestamp for scd_buf_err */
time64_t scd_buf_err_stamp;
/** total # request buffers */
int scd_buf_total;
/** # posted request buffers */
int scd_buf_nposted;
/** in progress of buffer posting */
int scd_buf_posting;
/** allocate more buffers if scd_buf_nposted < scd_buf_low */
int scd_buf_low;
/** increase/decrease some buffers */
int scd_buf_adjust;
/** posted message buffers */
struct list_head scd_buf_posted;
/** blocked for RPC descriptor */
struct list_head scd_buf_blocked;
};
/* number of server workitems (mini-thread) for testing service */
#define SFW_TEST_WI_MIN 256
#define SFW_TEST_WI_MAX 2048
/* extra buffers for tolerating buggy peers, or unbalanced number
* of peers between partitions
*/
#define SFW_TEST_WI_EXTRA 64
/* number of server workitems (mini-thread) for framework service */
#define SFW_FRWK_WI_MIN 16
#define SFW_FRWK_WI_MAX 256
struct srpc_service {
int sv_id; /* service id */
const char *sv_name; /* human readable name */
int sv_wi_total; /* total server workitems */
int sv_shuttingdown;
int sv_ncpts;
/* percpt data for srpc_service */
struct srpc_service_cd **sv_cpt_data;
/* Service callbacks:
* - sv_handler: process incoming RPC request
* - sv_bulk_ready: notify bulk data
*/
int (*sv_handler)(struct srpc_server_rpc *);
int (*sv_bulk_ready)(struct srpc_server_rpc *, int);
};
struct sfw_session {
struct list_head sn_list; /* chain on fw_zombie_sessions */
struct lst_sid sn_id; /* unique identifier */
unsigned int sn_timeout; /* # seconds' inactivity to expire */
int sn_timer_active;
unsigned int sn_features;
struct stt_timer sn_timer;
struct list_head sn_batches; /* list of batches */
char sn_name[LST_NAME_SIZE];
atomic_t sn_refcount;
atomic_t sn_brw_errors;
atomic_t sn_ping_errors;
unsigned long sn_started;
};
#define sfw_sid_equal(sid0, sid1) ((sid0).ses_nid == (sid1).ses_nid && \
(sid0).ses_stamp == (sid1).ses_stamp)
struct sfw_batch {
struct list_head bat_list; /* chain on sn_batches */
struct lst_bid bat_id; /* batch id */
int bat_error; /* error code of batch */
struct sfw_session *bat_session; /* batch's session */
atomic_t bat_nactive; /* # of active tests */
struct list_head bat_tests; /* test instances */
};
struct sfw_test_client_ops {
int (*tso_init)(struct sfw_test_instance *tsi); /* initialize test
* client
*/
void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test
* client
*/
int (*tso_prep_rpc)(struct sfw_test_unit *tsu,
lnet_process_id_t dest,
struct srpc_client_rpc **rpc); /* prep a tests rpc */
void (*tso_done_rpc)(struct sfw_test_unit *tsu,
struct srpc_client_rpc *rpc); /* done a test rpc */
};
struct sfw_test_instance {
struct list_head tsi_list; /* chain on batch */
int tsi_service; /* test type */
struct sfw_batch *tsi_batch; /* batch */
struct sfw_test_client_ops *tsi_ops; /* test client operation
*/
/* public parameter for all test units */
unsigned int tsi_is_client:1; /* is test client */
unsigned int tsi_stoptsu_onerr:1; /* stop tsu on error */
int tsi_concur; /* concurrency */
int tsi_loop; /* loop count */
/* status of test instance */
spinlock_t tsi_lock; /* serialize */
unsigned int tsi_stopping:1; /* test is stopping */
atomic_t tsi_nactive; /* # of active test
* unit
*/
struct list_head tsi_units; /* test units */
struct list_head tsi_free_rpcs; /* free rpcs */
struct list_head tsi_active_rpcs; /* active rpcs */
union {
struct test_ping_req ping; /* ping parameter */
struct test_bulk_req bulk_v0; /* bulk parameter */
struct test_bulk_req_v1 bulk_v1; /* bulk v1 parameter */
}
tsi_u;
};
/*
* XXX: trailing (PAGE_SIZE % sizeof(lnet_process_id_t)) bytes at the end of
* pages are not used
*/
#define SFW_MAX_CONCUR LST_MAX_CONCUR
#define SFW_ID_PER_PAGE (PAGE_SIZE / sizeof(struct lnet_process_id_packed))
#define SFW_MAX_NDESTS (LNET_MAX_IOV * SFW_ID_PER_PAGE)
#define sfw_id_pages(n) (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
struct sfw_test_unit {
struct list_head tsu_list; /* chain on lst_test_instance */
lnet_process_id_t tsu_dest; /* id of dest node */
int tsu_loop; /* loop count of the test */
struct sfw_test_instance *tsu_instance; /* pointer to test instance */
void *tsu_private; /* private data */
struct swi_workitem tsu_worker; /* workitem of the test unit */
};
struct sfw_test_case {
struct list_head tsc_list; /* chain on fw_tests */
struct srpc_service *tsc_srv_service; /* test service */
struct sfw_test_client_ops *tsc_cli_ops; /* ops of test client */
};
struct srpc_client_rpc *
sfw_create_rpc(lnet_process_id_t peer, int service,
unsigned int features, int nbulkiov, int bulklen,
void (*done)(struct srpc_client_rpc *), void *priv);
int sfw_create_test_rpc(struct sfw_test_unit *tsu,
lnet_process_id_t peer, unsigned int features,
int nblk, int blklen, struct srpc_client_rpc **rpc);
void sfw_abort_rpc(struct srpc_client_rpc *rpc);
void sfw_post_rpc(struct srpc_client_rpc *rpc);
void sfw_client_rpc_done(struct srpc_client_rpc *rpc);
void sfw_unpack_message(struct srpc_msg *msg);
void sfw_free_pages(struct srpc_server_rpc *rpc);
void sfw_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i);
int sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len,
int sink);
int sfw_make_session(struct srpc_mksn_reqst *request,
struct srpc_mksn_reply *reply);
struct srpc_client_rpc *
srpc_create_client_rpc(lnet_process_id_t peer, int service,
int nbulkiov, int bulklen,
void (*rpc_done)(struct srpc_client_rpc *),
void (*rpc_fini)(struct srpc_client_rpc *), void *priv);
void srpc_post_rpc(struct srpc_client_rpc *rpc);
void srpc_abort_rpc(struct srpc_client_rpc *rpc, int why);
void srpc_free_bulk(struct srpc_bulk *bk);
struct srpc_bulk *srpc_alloc_bulk(int cpt, unsigned int off,
unsigned int bulk_npg, unsigned int bulk_len,
int sink);
int srpc_send_rpc(struct swi_workitem *wi);
int srpc_send_reply(struct srpc_server_rpc *rpc);
int srpc_add_service(struct srpc_service *sv);
int srpc_remove_service(struct srpc_service *sv);
void srpc_shutdown_service(struct srpc_service *sv);
void srpc_abort_service(struct srpc_service *sv);
int srpc_finish_service(struct srpc_service *sv);
int srpc_service_add_buffers(struct srpc_service *sv, int nbuffer);
void srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer);
void srpc_get_counters(struct srpc_counters *cnt);
void srpc_set_counters(const struct srpc_counters *cnt);
extern struct cfs_wi_sched *lst_sched_serial;
extern struct cfs_wi_sched **lst_sched_test;
static inline int
srpc_serv_is_framework(struct srpc_service *svc)
{
return svc->sv_id < SRPC_FRAMEWORK_SERVICE_MAX_ID;
}
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static inline int
swi_wi_action(struct cfs_workitem *wi)
{
struct swi_workitem *swi;
swi = container_of(wi, struct swi_workitem, swi_workitem);
return swi->swi_action(swi);
}
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static inline void
swi_init_workitem(struct swi_workitem *swi, void *data,
swi_action_t action, struct cfs_wi_sched *sched)
{
swi->swi_sched = sched;
swi->swi_action = action;
swi->swi_state = SWI_STATE_NEWBORN;
cfs_wi_init(&swi->swi_workitem, data, swi_wi_action);
}
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static inline void
swi_schedule_workitem(struct swi_workitem *wi)
{
cfs_wi_schedule(wi->swi_sched, &wi->swi_workitem);
}
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static inline void
swi_exit_workitem(struct swi_workitem *swi)
{
cfs_wi_exit(swi->swi_sched, &swi->swi_workitem);
}
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static inline int
swi_deschedule_workitem(struct swi_workitem *swi)
{
return cfs_wi_deschedule(swi->swi_sched, &swi->swi_workitem);
}
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int sfw_startup(void);
int srpc_startup(void);
void sfw_shutdown(void);
void srpc_shutdown(void);
static inline void
srpc_destroy_client_rpc(struct srpc_client_rpc *rpc)
{
LASSERT(rpc);
LASSERT(!srpc_event_pending(rpc));
LASSERT(!atomic_read(&rpc->crpc_refcount));
if (!rpc->crpc_fini)
LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
else
(*rpc->crpc_fini)(rpc);
}
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static inline void
srpc_init_client_rpc(struct srpc_client_rpc *rpc, lnet_process_id_t peer,
int service, int nbulkiov, int bulklen,
void (*rpc_done)(struct srpc_client_rpc *),
void (*rpc_fini)(struct srpc_client_rpc *), void *priv)
{
LASSERT(nbulkiov <= LNET_MAX_IOV);
memset(rpc, 0, offsetof(struct srpc_client_rpc,
crpc_bulk.bk_iovs[nbulkiov]));
INIT_LIST_HEAD(&rpc->crpc_list);
swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc,
lst_sched_test[lnet_cpt_of_nid(peer.nid)]);
spin_lock_init(&rpc->crpc_lock);
atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
rpc->crpc_dest = peer;
rpc->crpc_priv = priv;
rpc->crpc_service = service;
rpc->crpc_bulk.bk_len = bulklen;
rpc->crpc_bulk.bk_niov = nbulkiov;
rpc->crpc_done = rpc_done;
rpc->crpc_fini = rpc_fini;
LNetInvalidateHandle(&rpc->crpc_reqstmdh);
LNetInvalidateHandle(&rpc->crpc_replymdh);
LNetInvalidateHandle(&rpc->crpc_bulk.bk_mdh);
/* no event is expected at this point */
rpc->crpc_bulkev.ev_fired = 1;
rpc->crpc_reqstev.ev_fired = 1;
rpc->crpc_replyev.ev_fired = 1;
rpc->crpc_reqstmsg.msg_magic = SRPC_MSG_MAGIC;
rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
rpc->crpc_reqstmsg.msg_type = srpc_service2request(service);
}
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static inline const char *
swi_state2str(int state)
{
#define STATE2STR(x) case x: return #x
switch (state) {
default:
LBUG();
STATE2STR(SWI_STATE_NEWBORN);
STATE2STR(SWI_STATE_REPLY_SUBMITTED);
STATE2STR(SWI_STATE_REPLY_SENT);
STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
STATE2STR(SWI_STATE_REQUEST_SENT);
STATE2STR(SWI_STATE_REPLY_RECEIVED);
STATE2STR(SWI_STATE_BULK_STARTED);
STATE2STR(SWI_STATE_DONE);
}
#undef STATE2STR
}
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#define selftest_wait_events() \
do { \
set_current_state(TASK_UNINTERRUPTIBLE); \
schedule_timeout(cfs_time_seconds(1) / 10); \
} while (0)
#define lst_wait_until(cond, lock, fmt, ...) \
do { \
int __I = 2; \
while (!(cond)) { \
CDEBUG(is_power_of_2(++__I) ? D_WARNING : D_NET, \
fmt, ## __VA_ARGS__); \
spin_unlock(&(lock)); \
\
selftest_wait_events(); \
\
spin_lock(&(lock)); \
} \
} while (0)
static inline void
srpc_wait_service_shutdown(struct srpc_service *sv)
{
int i = 2;
LASSERT(sv->sv_shuttingdown);
while (!srpc_finish_service(sv)) {
i++;
CDEBUG(((i & -i) == i) ? D_WARNING : D_NET,
"Waiting for %s service to shutdown...\n",
sv->sv_name);
selftest_wait_events();
}
}
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extern struct sfw_test_client_ops brw_test_client;
void brw_init_test_client(void);
extern struct srpc_service brw_test_service;
void brw_init_test_service(void);
extern struct sfw_test_client_ops ping_test_client;
void ping_init_test_client(void);
extern struct srpc_service ping_test_service;
void ping_init_test_service(void);
#endif /* __SELFTEST_SELFTEST_H__ */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Peng Tao | 1949 | 87.91% | 2 | 5.26% |
| James Simmons | 200 | 9.02% | 26 | 68.42% |
| Jeremiah Mahler | 36 | 1.62% | 1 | 2.63% |
| Shraddha Barke | 11 | 0.50% | 1 | 2.63% |
| Greg Kroah-Hartman | 7 | 0.32% | 2 | 5.26% |
| Liang Zhen | 6 | 0.27% | 1 | 2.63% |
| Bhumika Goyal | 4 | 0.18% | 1 | 2.63% |
| Mike Shuey | 1 | 0.05% | 1 | 2.63% |
| Arnd Bergmann | 1 | 0.05% | 1 | 2.63% |
| Oleg Drokin | 1 | 0.05% | 1 | 2.63% |
| Aya Mahfouz | 1 | 0.05% | 1 | 2.63% |
| Total | 2217 | 100.00% | 38 | 100.00% |
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