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qed/qede: Add GENEVE tunnel slowpath configuration support 

This patch enables GENEVE tunnel on the adapter and
add support for driver hooks to configure UDP ports
for GENEVE tunnel offload to be performed by the adapter.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Manish Chopra 2016-04-14 01:38:31 -04:00 committed by David S. Miller
parent b18e170cac
commit 9a109dd073
4 changed files with 69 additions and 1 deletions
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10
drivers/net/ethernet/qlogic/Kconfig
View File

@ -114,4 +114,14 @@ config QEDE_VXLAN
support for Virtual eXtensible Local Area Network (VXLAN)
in the driver.
config QEDE_GENEVE
bool "Generic Network Virtualization Encapsulation (GENEVE) support"
depends on QEDE && GENEVE && !(QEDE=y && GENEVE=m)
---help---
This allows one to create GENEVE virtual interfaces that provide
Layer 2 Networks over Layer 3 Networks. GENEVE is often used
to tunnel virtual network infrastructure in virtualized environments.
Say Y here if you want to enable hardware offload support for
Generic Network Virtualization Encapsulation (GENEVE) in the driver.
endif # NET_VENDOR_QLOGIC

5
drivers/net/ethernet/qlogic/qed/qed_main.c
View File

@ -778,7 +778,10 @@ static int qed_slowpath_start(struct qed_dev *cdev,
data = cdev->firmware->data;
memset(&tunn_info, 0, sizeof(tunn_info));
tunn_info.tunn_mode |= 1 << QED_MODE_VXLAN_TUNN;
tunn_info.tunn_mode |= 1 << QED_MODE_VXLAN_TUNN |
1 << QED_MODE_L2GENEVE_TUNN |
1 << QED_MODE_IPGENEVE_TUNN;
tunn_info.tunn_clss_vxlan = QED_TUNN_CLSS_MAC_VLAN;
rc = qed_hw_init(cdev, &tunn_info, true,

2
drivers/net/ethernet/qlogic/qede/qede.h
View File

@ -170,6 +170,7 @@ struct qede_dev {
struct delayed_work sp_task;
unsigned long sp_flags;
u16 vxlan_dst_port;
u16 geneve_dst_port;
};
enum QEDE_STATE {
@ -292,6 +293,7 @@ struct qede_fastpath {
#define QEDE_SP_RX_MODE 1
#define QEDE_SP_VXLAN_PORT_CONFIG 2
#define QEDE_SP_GENEVE_PORT_CONFIG 3
union qede_reload_args {
u16 mtu;

53
drivers/net/ethernet/qlogic/qede/qede_main.c
View File

@ -27,6 +27,9 @@
#ifdef CONFIG_QEDE_VXLAN
#include <net/vxlan.h>
#endif
#ifdef CONFIG_QEDE_GENEVE
#include <net/geneve.h>
#endif
#include <linux/ip.h>
#include <net/ipv6.h>
#include <net/tcp.h>
@ -1859,6 +1862,40 @@ static void qede_del_vxlan_port(struct net_device *dev,
}
#endif
#ifdef CONFIG_QEDE_GENEVE
static void qede_add_geneve_port(struct net_device *dev,
sa_family_t sa_family, __be16 port)
{
struct qede_dev *edev = netdev_priv(dev);
u16 t_port = ntohs(port);
if (edev->geneve_dst_port)
return;
edev->geneve_dst_port = t_port;
DP_VERBOSE(edev, QED_MSG_DEBUG, "Added geneve port=%d", t_port);
set_bit(QEDE_SP_GENEVE_PORT_CONFIG, &edev->sp_flags);
schedule_delayed_work(&edev->sp_task, 0);
}
static void qede_del_geneve_port(struct net_device *dev,
sa_family_t sa_family, __be16 port)
{
struct qede_dev *edev = netdev_priv(dev);
u16 t_port = ntohs(port);
if (t_port != edev->geneve_dst_port)
return;
edev->geneve_dst_port = 0;
DP_VERBOSE(edev, QED_MSG_DEBUG, "Deleted geneve port=%d", t_port);
set_bit(QEDE_SP_GENEVE_PORT_CONFIG, &edev->sp_flags);
schedule_delayed_work(&edev->sp_task, 0);
}
#endif
static const struct net_device_ops qede_netdev_ops = {
.ndo_open = qede_open,
.ndo_stop = qede_close,
@ -1874,6 +1911,10 @@ static const struct net_device_ops qede_netdev_ops = {
.ndo_add_vxlan_port = qede_add_vxlan_port,
.ndo_del_vxlan_port = qede_del_vxlan_port,
#endif
#ifdef CONFIG_QEDE_GENEVE
.ndo_add_geneve_port = qede_add_geneve_port,
.ndo_del_geneve_port = qede_del_geneve_port,
#endif
};
/* -------------------------------------------------------------------------
@ -2064,6 +2105,15 @@ static void qede_sp_task(struct work_struct *work)
qed_ops->tunn_config(cdev, &tunn_params);
}
if (test_and_clear_bit(QEDE_SP_GENEVE_PORT_CONFIG, &edev->sp_flags)) {
struct qed_tunn_params tunn_params;
memset(&tunn_params, 0, sizeof(tunn_params));
tunn_params.update_geneve_port = 1;
tunn_params.geneve_port = edev->geneve_dst_port;
qed_ops->tunn_config(cdev, &tunn_params);
}
mutex_unlock(&edev->qede_lock);
}
@ -3215,6 +3265,9 @@ static int qede_open(struct net_device *ndev)
#ifdef CONFIG_QEDE_VXLAN
vxlan_get_rx_port(ndev);
#endif
#ifdef CONFIG_QEDE_GENEVE
geneve_get_rx_port(ndev);
#endif
return 0;
}