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https://github.com/xen-project/xen.git
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Pritha Srivastava
66c8e9b76c
xl now knows how to drive tapdisk, so modify libxenstat to understand vbd3 statistics. Signed-off-by: Pritha Srivastava <pritha.srivastava@citrix.com> Signed-off-by: Jorge Martin <jorge.martin@citrix.com> Signed-off-by: Fouad Hilly <fouad.hilly@cloud.com> Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
/* libxenstat: statistics-collection library for Xen
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* Copyright (C) International Business Machines Corp., 2005
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* Authors: Josh Triplett <josh@kernel.org>
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* Judy Fischbach <jfisch@cs.pdx.edu>
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* David Hendricks <cro_marmot@comcast.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*/
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/*
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* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#ifndef XENSTAT_PRIV_H
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#define XENSTAT_PRIV_H
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#include <sys/types.h>
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#include <xenstore.h>
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#include "xenstat.h"
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#include "xenctrl.h"
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#define SHORT_ASC_LEN 5 /* length of 65535 */
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#define VERSION_SIZE (2 * SHORT_ASC_LEN + 1 + sizeof(xen_extraversion_t) + 1)
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struct xenstat_handle {
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xc_interface *xc_handle;
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struct xs_handle *xshandle; /* xenstore handle */
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int page_size;
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void *priv;
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char xen_version[VERSION_SIZE]; /* xen version running on this node */
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};
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struct xenstat_node {
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xenstat_handle *handle;
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unsigned int flags;
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unsigned long long cpu_hz;
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unsigned int num_cpus;
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unsigned long long tot_mem;
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unsigned long long free_mem;
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unsigned int num_domains;
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xenstat_domain *domains; /* Array of length num_domains */
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long freeable_mb;
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};
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struct xenstat_domain {
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unsigned int id;
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char *name;
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unsigned int state;
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unsigned long long cpu_ns;
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unsigned int num_vcpus; /* No. vcpus configured for domain */
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xenstat_vcpu *vcpus; /* Array of length num_vcpus */
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unsigned long long cur_mem; /* Current memory reservation */
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unsigned long long max_mem; /* Total memory allowed */
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unsigned int ssid;
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unsigned int num_networks;
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xenstat_network *networks; /* Array of length num_networks */
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unsigned int num_vbds;
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xenstat_vbd *vbds;
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};
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struct xenstat_vcpu {
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unsigned int online;
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unsigned long long ns;
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};
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struct xenstat_network {
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unsigned int id;
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/* Received */
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unsigned long long rbytes;
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unsigned long long rpackets;
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unsigned long long rerrs;
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unsigned long long rdrop;
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/* Transmitted */
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unsigned long long tbytes;
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unsigned long long tpackets;
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unsigned long long terrs;
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unsigned long long tdrop;
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};
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struct xenstat_vbd {
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unsigned int back_type;
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unsigned int dev;
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unsigned int error;
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unsigned long long oo_reqs;
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unsigned long long rd_reqs;
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unsigned long long wr_reqs;
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unsigned long long rd_sects;
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unsigned long long wr_sects;
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};
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/* Interface provided by https://github.com/xapi-project/blktap */
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struct vbd3_stats {
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uint32_t version;
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uint32_t __pad;
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uint64_t oo_reqs;
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uint64_t read_reqs_submitted;
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uint64_t read_reqs_completed;
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uint64_t read_sectors;
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uint64_t read_total_ticks;
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uint64_t write_reqs_submitted;
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uint64_t write_reqs_completed;
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uint64_t write_sectors;
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uint64_t write_total_ticks;
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uint64_t io_errors;
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uint64_t flags;
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};
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extern int xenstat_collect_networks(xenstat_node * node);
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extern void xenstat_uninit_networks(xenstat_handle * handle);
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extern int xenstat_collect_vbds(xenstat_node * node);
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extern void xenstat_uninit_vbds(xenstat_handle * handle);
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extern void read_attributes_qdisk(xenstat_node * node);
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extern xenstat_vbd *xenstat_save_vbd(xenstat_domain * domain, xenstat_vbd * vbd);
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#endif /* XENSTAT_PRIV_H */
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