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ixgbe: Add new ndo to trust VF 

Implements the new netdev op to trust VF in ixgbe.

The administrator can turn on and off VF trusted by ip command which
supports trust message.
 # ip link set dev eth0 vf 1 trust on
or
 # ip link set dev eth0 vf 1 trust off

Send a ping to reset VF on changing the status of trusting.
VF driver will reconfigure its features on reset.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Hiroshi Shimamoto 2015-08-28 06:58:33 +00:00 committed by Jeff Kirsher
parent dd461d6aa8
commit 54011e4db8
4 changed files with 40 additions and 0 deletions
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1
drivers/net/ethernet/intel/ixgbe/ixgbe.h
View File

@ -152,6 +152,7 @@ struct vf_data_storage {
u16 vlan_count;
u8 spoofchk_enabled;
bool rss_query_enabled;
u8 trusted;
unsigned int vf_api;
};

1
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View File

@ -8407,6 +8407,7 @@ static const struct net_device_ops ixgbe_netdev_ops = {
.ndo_set_vf_rate = ixgbe_ndo_set_vf_bw,
.ndo_set_vf_spoofchk = ixgbe_ndo_set_vf_spoofchk,
.ndo_set_vf_rss_query_en = ixgbe_ndo_set_vf_rss_query_en,
.ndo_set_vf_trust = ixgbe_ndo_set_vf_trust,
.ndo_get_vf_config = ixgbe_ndo_get_vf_config,
.ndo_get_stats64 = ixgbe_get_stats64,
#ifdef CONFIG_IXGBE_DCB

37
drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
View File

@ -116,6 +116,9 @@ static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
* we want to disable the querying by default.
*/
adapter->vfinfo[i].rss_query_enabled = 0;
/* Untrust all VFs */
adapter->vfinfo[i].trusted = false;
}
return 0;
@ -1124,6 +1127,17 @@ void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
}
static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
{
struct ixgbe_hw *hw = &adapter->hw;
u32 ping;
ping = IXGBE_PF_CONTROL_MSG;
if (adapter->vfinfo[vf].clear_to_send)
ping |= IXGBE_VT_MSGTYPE_CTS;
ixgbe_write_mbx(hw, &ping, 1, vf);
}
void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
{
struct ixgbe_hw *hw = &adapter->hw;
@ -1416,6 +1430,28 @@ int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
return 0;
}
int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
if (vf >= adapter->num_vfs)
return -EINVAL;
/* nothing to do */
if (adapter->vfinfo[vf].trusted == setting)
return 0;
adapter->vfinfo[vf].trusted = setting;
/* reset VF to reconfigure features */
adapter->vfinfo[vf].clear_to_send = false;
ixgbe_ping_vf(adapter, vf);
e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
return 0;
}
int ixgbe_ndo_get_vf_config(struct net_device *netdev,
int vf, struct ifla_vf_info *ivi)
{
@ -1430,5 +1466,6 @@ int ixgbe_ndo_get_vf_config(struct net_device *netdev,
ivi->qos = adapter->vfinfo[vf].pf_qos;
ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
ivi->trusted = adapter->vfinfo[vf].trusted;
return 0;
}

1
drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.h
View File

@ -49,6 +49,7 @@ int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting);
int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
bool setting);
int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting);
int ixgbe_ndo_get_vf_config(struct net_device *netdev,
int vf, struct ifla_vf_info *ivi);
void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter);