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hyperv/hn: Change global tunable prefix to hw.hn

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And use SYSCTL+CTLFLAG_RDTUN for them.

Suggested by:	adrian
Reviewed by:	adrian, Hongjiang Zhang <honzhan microsoft com>
Approved by:	adrian (mentor)
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5274
This commit is contained in:
Sepherosa Ziehau 2016-02-18 07:06:44 +00:00
parent 01610d88da
commit f9c55d1c83
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=295743
1 changed files with 24 additions and 50 deletions
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74
sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
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@ -205,41 +205,57 @@ struct hn_txdesc {
int hv_promisc_mode = 0; /* normal mode by default */
SYSCTL_NODE(_hw, OID_AUTO, hn, CTLFLAG_RD, NULL, "Hyper-V network interface");
/* Trust tcp segements verification on host side. */
static int hn_trust_hosttcp = 1;
TUNABLE_INT("dev.hn.trust_hosttcp", &hn_trust_hosttcp);
SYSCTL_INT(_hw_hn, OID_AUTO, trust_hosttcp, CTLFLAG_RDTUN,
&hn_trust_hosttcp, 0,
"Trust tcp segement verification on host side, "
"when csum info is missing (global setting)");
/* Trust udp datagrams verification on host side. */
static int hn_trust_hostudp = 1;
TUNABLE_INT("dev.hn.trust_hostudp", &hn_trust_hostudp);
SYSCTL_INT(_hw_hn, OID_AUTO, trust_hostudp, CTLFLAG_RDTUN,
&hn_trust_hostudp, 0,
"Trust udp datagram verification on host side, "
"when csum info is missing (global setting)");
/* Trust ip packets verification on host side. */
static int hn_trust_hostip = 1;
TUNABLE_INT("dev.hn.trust_hostip", &hn_trust_hostip);
SYSCTL_INT(_hw_hn, OID_AUTO, trust_hostip, CTLFLAG_RDTUN,
&hn_trust_hostip, 0,
"Trust ip packet verification on host side, "
"when csum info is missing (global setting)");
#if __FreeBSD_version >= 1100045
/* Limit TSO burst size */
static int hn_tso_maxlen = 0;
TUNABLE_INT("dev.hn.tso_maxlen", &hn_tso_maxlen);
SYSCTL_INT(_hw_hn, OID_AUTO, tso_maxlen, CTLFLAG_RDTUN,
&hn_tso_maxlen, 0, "TSO burst limit");
#endif
/* Limit chimney send size */
static int hn_tx_chimney_size = 0;
TUNABLE_INT("dev.hn.tx_chimney_size", &hn_tx_chimney_size);
SYSCTL_INT(_hw_hn, OID_AUTO, tx_chimney_size, CTLFLAG_RDTUN,
&hn_tx_chimney_size, 0, "Chimney send packet size limit");
/* Limit the size of packet for direct transmission */
static int hn_direct_tx_size = HN_DIRECT_TX_SIZE_DEF;
TUNABLE_INT("dev.hn.direct_tx_size", &hn_direct_tx_size);
SYSCTL_INT(_hw_hn, OID_AUTO, direct_tx_size, CTLFLAG_RDTUN,
&hn_direct_tx_size, 0, "Size of the packet for direct transmission");
#if defined(INET) || defined(INET6)
#if __FreeBSD_version >= 1100095
static int hn_lro_entry_count = HN_LROENT_CNT_DEF;
TUNABLE_INT("dev.hn.lro_entry_count", &hn_lro_entry_count);
SYSCTL_INT(_hw_hn, OID_AUTO, lro_entry_count, CTLFLAG_RDTUN,
&hn_lro_entry_count, 0, "LRO entry count");
#endif
#endif
static int hn_share_tx_taskq = 0;
TUNABLE_INT("hw.hn.share_tx_taskq", &hn_share_tx_taskq);
SYSCTL_INT(_hw_hn, OID_AUTO, share_tx_taskq, CTLFLAG_RDTUN,
&hn_share_tx_taskq, 0, "Enable shared TX taskqueue");
static struct taskqueue *hn_tx_taskq;
@ -541,48 +557,6 @@ netvsc_attach(device_t dev)
"Always schedule transmission "
"instead of doing direct transmission");
if (unit == 0) {
struct sysctl_ctx_list *dc_ctx;
struct sysctl_oid_list *dc_child;
devclass_t dc;
/*
* Add sysctl nodes for devclass
*/
dc = device_get_devclass(dev);
dc_ctx = devclass_get_sysctl_ctx(dc);
dc_child = SYSCTL_CHILDREN(devclass_get_sysctl_tree(dc));
SYSCTL_ADD_INT(dc_ctx, dc_child, OID_AUTO, "trust_hosttcp",
CTLFLAG_RD, &hn_trust_hosttcp, 0,
"Trust tcp segement verification on host side, "
"when csum info is missing (global setting)");
SYSCTL_ADD_INT(dc_ctx, dc_child, OID_AUTO, "trust_hostudp",
CTLFLAG_RD, &hn_trust_hostudp, 0,
"Trust udp datagram verification on host side, "
"when csum info is missing (global setting)");
SYSCTL_ADD_INT(dc_ctx, dc_child, OID_AUTO, "trust_hostip",
CTLFLAG_RD, &hn_trust_hostip, 0,
"Trust ip packet verification on host side, "
"when csum info is missing (global setting)");
SYSCTL_ADD_INT(dc_ctx, dc_child, OID_AUTO, "tx_chimney_size",
CTLFLAG_RD, &hn_tx_chimney_size, 0,
"Chimney send packet size limit");
#if __FreeBSD_version >= 1100045
SYSCTL_ADD_INT(dc_ctx, dc_child, OID_AUTO, "tso_maxlen",
CTLFLAG_RD, &hn_tso_maxlen, 0, "TSO burst limit");
#endif
SYSCTL_ADD_INT(dc_ctx, dc_child, OID_AUTO, "direct_tx_size",
CTLFLAG_RD, &hn_direct_tx_size, 0,
"Size of the packet for direct transmission");
#if defined(INET) || defined(INET6)
#if __FreeBSD_version >= 1100095
SYSCTL_ADD_INT(dc_ctx, dc_child, OID_AUTO, "lro_entry_count",
CTLFLAG_RD, &hn_lro_entry_count, 0, "LRO entry count");
#endif
#endif
}
return (0);
failed:
hn_destroy_tx_ring(sc);