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platform: add support for changing VF attributes

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This commit is contained in:
Beniamino Galvani
2018-05-23 14:33:24 +02:00
parent 7df3333879
commit 8720dd3df1
3 changed files with 230 additions and 0 deletions
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136
src/platform/nm-linux-platform.c
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@@ -215,6 +215,46 @@ G_STATIC_ASSERT (RTA_MAX == (__RTA_MAX - 1));
/*****************************************************************************/
/* Redefine VF enums and structures that are not available on older kernels. */
#define IFLA_VF_UNSPEC 0
#define IFLA_VF_MAC 1
#define IFLA_VF_VLAN 2
#define IFLA_VF_TX_RATE 3
#define IFLA_VF_SPOOFCHK 4
#define IFLA_VF_LINK_STATE 5
#define IFLA_VF_RATE 6
#define IFLA_VF_RSS_QUERY_EN 7
#define IFLA_VF_STATS 8
#define IFLA_VF_TRUST 9
#define IFLA_VF_IB_NODE_GUID 10
#define IFLA_VF_IB_PORT_GUID 11
#define IFLA_VF_VLAN_LIST 12
#define IFLA_VF_VLAN_INFO_UNSPEC 0
#define IFLA_VF_VLAN_INFO 1
/* valid for TRUST, SPOOFCHK, LINK_STATE, RSS_QUERY_EN */
struct _ifla_vf_setting {
guint32 vf;
guint32 setting;
};
struct _ifla_vf_rate {
guint32 vf;
guint32 min_tx_rate;
guint32 max_tx_rate;
};
struct _ifla_vf_vlan_info {
guint32 vf;
guint32 vlan; /* 0 - 4095, 0 disables VLAN filter */
guint32 qos;
guint16 vlan_proto; /* VLAN protocol, either 802.1Q or 802.1ad */
};
/*****************************************************************************/
#define _NMLOG_PREFIX_NAME "platform-linux"
#define _NMLOG_DOMAIN LOGD_PLATFORM
#define _NMLOG2_DOMAIN LOGD_PLATFORM
@@ -5617,6 +5657,101 @@ link_set_sriov_params (NMPlatform *platform,
return TRUE;
}
static gboolean
link_set_sriov_vfs (NMPlatform *platform, int ifindex, const NMPlatformVF *const *vfs)
{
nm_auto_nlmsg struct nl_msg *nlmsg = NULL;
struct nlattr *list, *info, *vlan_list;
guint i;
nlmsg = _nl_msg_new_link (RTM_NEWLINK,
0,
ifindex,
NULL,
0,
0);
if (!nlmsg)
g_return_val_if_reached (NM_PLATFORM_ERROR_UNSPECIFIED);
if (!(list = nla_nest_start (nlmsg, IFLA_VFINFO_LIST)))
goto nla_put_failure;
for (i = 0; vfs[i]; i++) {
const NMPlatformVF *vf = vfs[i];
if (!(info = nla_nest_start (nlmsg, IFLA_VF_INFO)))
goto nla_put_failure;
if (vf->spoofchk >= 0) {
struct _ifla_vf_setting ivs = { 0 };
ivs.vf = vf->index;
ivs.setting = vf->spoofchk;
NLA_PUT (nlmsg, IFLA_VF_SPOOFCHK, sizeof (ivs), &ivs);
}
if (vf->trust >= 0) {
struct _ifla_vf_setting ivs = { 0 };
ivs.vf = vf->index;
ivs.setting = vf->trust;
NLA_PUT (nlmsg, IFLA_VF_TRUST, sizeof (ivs), &ivs);
}
if (vf->mac.len) {
struct ifla_vf_mac ivm = { 0 };
ivm.vf = vf->index;
memcpy (ivm.mac, vf->mac.data, vf->mac.len);
NLA_PUT (nlmsg, IFLA_VF_MAC, sizeof (ivm), &ivm);
}
if (vf->min_tx_rate || vf->max_tx_rate) {
struct _ifla_vf_rate ivr = { 0 };
ivr.vf = vf->index;
ivr.min_tx_rate = vf->min_tx_rate;
ivr.max_tx_rate = vf->max_tx_rate;
NLA_PUT (nlmsg, IFLA_VF_RATE, sizeof (ivr), &ivr);
}
/* Kernel only supports one VLAN per VF now. If this
* changes in the future, we need to figure out how to
* clear existing VLANs and set new ones in one message
* with the new API.*/
if (vf->num_vlans > 1) {
_LOGW ("multiple VLANs per VF are not supported at the moment");
return FALSE;
} else {
struct _ifla_vf_vlan_info ivvi = { 0 };
if (!(vlan_list = nla_nest_start (nlmsg, IFLA_VF_VLAN_LIST)))
goto nla_put_failure;
ivvi.vf = vf->index;
if (vf->num_vlans == 1) {
ivvi.vlan = vf->vlans[0].id;
ivvi.qos = vf->vlans[0].qos;
ivvi.vlan_proto = htons (vf->vlans[0].proto_ad ? ETH_P_8021AD : ETH_P_8021Q);
} else {
/* Clear existing VLAN */
ivvi.vlan = 0;
ivvi.qos = 0;
ivvi.vlan_proto = htons (ETH_P_8021Q);
}
NLA_PUT (nlmsg, IFLA_VF_VLAN_INFO, sizeof (ivvi), &ivvi);
nla_nest_end (nlmsg, vlan_list);
}
nla_nest_end (nlmsg, info);
}
nla_nest_end (nlmsg, list);
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg, NULL) == NM_PLATFORM_ERROR_SUCCESS;
nla_put_failure:
g_return_val_if_reached (FALSE);
}
static char *
link_get_physical_port_id (NMPlatform *platform, int ifindex)
{
@@ -7761,6 +7896,7 @@ nm_linux_platform_class_init (NMLinuxPlatformClass *klass)
platform_class->link_set_mtu = link_set_mtu;
platform_class->link_set_name = link_set_name;
platform_class->link_set_sriov_params = link_set_sriov_params;
platform_class->link_set_sriov_vfs = link_set_sriov_vfs;
platform_class->link_get_physical_port_id = link_get_physical_port_id;
platform_class->link_get_dev_id = link_get_dev_id;