i40e: geneve tunnel offload support
This patch adds driver hooks to implement ndo_ops to add/del udp port in the HW to identify GENEVE tunnels. Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Signed-off-by: Kiran Patil <kiran.patil@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Singhai, Anjali
David S. Miller
Родитель
a8170d2b9e
Коммит
6a89902405
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@ -245,6 +245,11 @@ struct i40e_tc_configuration {
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struct i40e_tc_info tc_info[I40E_MAX_TRAFFIC_CLASS];
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};
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struct i40e_udp_port_config {
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__be16 index;
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u8 type;
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};
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/* struct that defines the Ethernet device */
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struct i40e_pf {
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struct pci_dev *pdev;
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@ -281,11 +286,9 @@ struct i40e_pf {
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u32 fd_atr_cnt;
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u32 fd_tcp_rule;
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#ifdef CONFIG_I40E_VXLAN
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__be16 vxlan_ports[I40E_MAX_PF_UDP_OFFLOAD_PORTS];
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u16 pending_vxlan_bitmap;
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struct i40e_udp_port_config udp_ports[I40E_MAX_PF_UDP_OFFLOAD_PORTS];
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u16 pending_udp_bitmap;
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#endif
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enum i40e_interrupt_policy int_policy;
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u16 rx_itr_default;
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u16 tx_itr_default;
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@ -322,9 +325,7 @@ struct i40e_pf {
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#define I40E_FLAG_FD_ATR_ENABLED BIT_ULL(22)
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#define I40E_FLAG_PTP BIT_ULL(25)
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#define I40E_FLAG_MFP_ENABLED BIT_ULL(26)
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#ifdef CONFIG_I40E_VXLAN
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#define I40E_FLAG_VXLAN_FILTER_SYNC BIT_ULL(27)
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#endif
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#define I40E_FLAG_UDP_FILTER_SYNC BIT_ULL(27)
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#define I40E_FLAG_PORT_ID_VALID BIT_ULL(28)
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#define I40E_FLAG_DCB_CAPABLE BIT_ULL(29)
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#define I40E_FLAG_RSS_AQ_CAPABLE BIT_ULL(31)
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@ -336,6 +337,7 @@ struct i40e_pf {
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#define I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE BIT_ULL(38)
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#define I40E_FLAG_LINK_POLLING_ENABLED BIT_ULL(39)
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#define I40E_FLAG_VEB_MODE_ENABLED BIT_ULL(40)
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#define I40E_FLAG_GENEVE_OFFLOAD_CAPABLE BIT_ULL(41)
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#define I40E_FLAG_NO_PCI_LINK_CHECK BIT_ULL(42)
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/* tracks features that get auto disabled by errors */
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@ -27,9 +27,12 @@
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/* Local includes */
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#include "i40e.h"
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#include "i40e_diag.h"
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#ifdef CONFIG_I40E_VXLAN
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#if IS_ENABLED(CONFIG_VXLAN)
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#include <net/vxlan.h>
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#endif
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#if IS_ENABLED(CONFIG_GENEVE)
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#include <net/geneve.h>
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#endif
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const char i40e_driver_name[] = "i40e";
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static const char i40e_driver_string[] =
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@ -7036,30 +7039,30 @@ static void i40e_handle_mdd_event(struct i40e_pf *pf)
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i40e_flush(hw);
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}
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#ifdef CONFIG_I40E_VXLAN
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/**
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* i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
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* i40e_sync_udp_filters_subtask - Sync the VSI filter list with HW
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* @pf: board private structure
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**/
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static void i40e_sync_vxlan_filters_subtask(struct i40e_pf *pf)
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static void i40e_sync_udp_filters_subtask(struct i40e_pf *pf)
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{
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#if IS_ENABLED(CONFIG_VXLAN) || IS_ENABLED(CONFIG_GENEVE)
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struct i40e_hw *hw = &pf->hw;
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i40e_status ret;
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__be16 port;
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int i;
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if (!(pf->flags & I40E_FLAG_VXLAN_FILTER_SYNC))
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if (!(pf->flags & I40E_FLAG_UDP_FILTER_SYNC))
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return;
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pf->flags &= ~I40E_FLAG_VXLAN_FILTER_SYNC;
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pf->flags &= ~I40E_FLAG_UDP_FILTER_SYNC;
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for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) {
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if (pf->pending_vxlan_bitmap & BIT_ULL(i)) {
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pf->pending_vxlan_bitmap &= ~BIT_ULL(i);
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port = pf->vxlan_ports[i];
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if (pf->pending_udp_bitmap & BIT_ULL(i)) {
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pf->pending_udp_bitmap &= ~BIT_ULL(i);
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port = pf->udp_ports[i].index;
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if (port)
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ret = i40e_aq_add_udp_tunnel(hw, ntohs(port),
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I40E_AQC_TUNNEL_TYPE_VXLAN,
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pf->udp_ports[i].type,
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NULL, NULL);
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else
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ret = i40e_aq_del_udp_tunnel(hw, i, NULL);
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@ -7072,13 +7075,13 @@ static void i40e_sync_vxlan_filters_subtask(struct i40e_pf *pf)
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i40e_stat_str(&pf->hw, ret),
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i40e_aq_str(&pf->hw,
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pf->hw.aq.asq_last_status));
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pf->vxlan_ports[i] = 0;
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pf->udp_ports[i].index = 0;
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}
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}
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}
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#endif
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}
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#endif
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/**
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* i40e_service_task - Run the driver's async subtasks
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* @work: pointer to work_struct containing our data
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@ -7103,8 +7106,8 @@ static void i40e_service_task(struct work_struct *work)
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i40e_watchdog_subtask(pf);
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i40e_fdir_reinit_subtask(pf);
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i40e_sync_filters_subtask(pf);
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#ifdef CONFIG_I40E_VXLAN
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i40e_sync_vxlan_filters_subtask(pf);
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#if IS_ENABLED(CONFIG_VXLAN) || IS_ENABLED(CONFIG_GENEVE)
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i40e_sync_udp_filters_subtask(pf);
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#endif
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i40e_clean_adminq_subtask(pf);
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@ -8380,7 +8383,8 @@ static int i40e_sw_init(struct i40e_pf *pf)
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I40E_FLAG_HW_ATR_EVICT_CAPABLE |
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I40E_FLAG_OUTER_UDP_CSUM_CAPABLE |
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I40E_FLAG_WB_ON_ITR_CAPABLE |
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I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE;
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I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE |
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I40E_FLAG_GENEVE_OFFLOAD_CAPABLE;
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}
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pf->eeprom_version = 0xDEAD;
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pf->lan_veb = I40E_NO_VEB;
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@ -8479,26 +8483,27 @@ static int i40e_set_features(struct net_device *netdev,
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return 0;
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}
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#ifdef CONFIG_I40E_VXLAN
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#if IS_ENABLED(CONFIG_VXLAN) || IS_ENABLED(CONFIG_GENEVE)
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/**
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* i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
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* i40e_get_udp_port_idx - Lookup a possibly offloaded for Rx UDP port
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* @pf: board private structure
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* @port: The UDP port to look up
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*
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* Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
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**/
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static u8 i40e_get_vxlan_port_idx(struct i40e_pf *pf, __be16 port)
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static u8 i40e_get_udp_port_idx(struct i40e_pf *pf, __be16 port)
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{
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u8 i;
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for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) {
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if (pf->vxlan_ports[i] == port)
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if (pf->udp_ports[i].index == port)
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return i;
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}
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return i;
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}
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#endif
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/**
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* i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
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* @netdev: This physical port's netdev
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@ -8508,6 +8513,7 @@ static u8 i40e_get_vxlan_port_idx(struct i40e_pf *pf, __be16 port)
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static void i40e_add_vxlan_port(struct net_device *netdev,
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sa_family_t sa_family, __be16 port)
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{
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#if IS_ENABLED(CONFIG_VXLAN)
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struct i40e_netdev_priv *np = netdev_priv(netdev);
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struct i40e_vsi *vsi = np->vsi;
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struct i40e_pf *pf = vsi->back;
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@ -8517,7 +8523,7 @@ static void i40e_add_vxlan_port(struct net_device *netdev,
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if (sa_family == AF_INET6)
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return;
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idx = i40e_get_vxlan_port_idx(pf, port);
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idx = i40e_get_udp_port_idx(pf, port);
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/* Check if port already exists */
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if (idx < I40E_MAX_PF_UDP_OFFLOAD_PORTS) {
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@ -8527,7 +8533,7 @@ static void i40e_add_vxlan_port(struct net_device *netdev,
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}
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/* Now check if there is space to add the new port */
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next_idx = i40e_get_vxlan_port_idx(pf, 0);
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next_idx = i40e_get_udp_port_idx(pf, 0);
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if (next_idx == I40E_MAX_PF_UDP_OFFLOAD_PORTS) {
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netdev_info(netdev, "maximum number of vxlan UDP ports reached, not adding port %d\n",
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@ -8536,9 +8542,11 @@ static void i40e_add_vxlan_port(struct net_device *netdev,
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}
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/* New port: add it and mark its index in the bitmap */
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pf->vxlan_ports[next_idx] = port;
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pf->pending_vxlan_bitmap |= BIT_ULL(next_idx);
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pf->flags |= I40E_FLAG_VXLAN_FILTER_SYNC;
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pf->udp_ports[next_idx].index = port;
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pf->udp_ports[next_idx].type = I40E_AQC_TUNNEL_TYPE_VXLAN;
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pf->pending_udp_bitmap |= BIT_ULL(next_idx);
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pf->flags |= I40E_FLAG_UDP_FILTER_SYNC;
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#endif
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}
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/**
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@ -8550,6 +8558,7 @@ static void i40e_add_vxlan_port(struct net_device *netdev,
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static void i40e_del_vxlan_port(struct net_device *netdev,
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sa_family_t sa_family, __be16 port)
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{
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#if IS_ENABLED(CONFIG_VXLAN)
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struct i40e_netdev_priv *np = netdev_priv(netdev);
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struct i40e_vsi *vsi = np->vsi;
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struct i40e_pf *pf = vsi->back;
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@ -8558,23 +8567,108 @@ static void i40e_del_vxlan_port(struct net_device *netdev,
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if (sa_family == AF_INET6)
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return;
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idx = i40e_get_vxlan_port_idx(pf, port);
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idx = i40e_get_udp_port_idx(pf, port);
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/* Check if port already exists */
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if (idx < I40E_MAX_PF_UDP_OFFLOAD_PORTS) {
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/* if port exists, set it to 0 (mark for deletion)
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* and make it pending
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*/
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pf->vxlan_ports[idx] = 0;
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pf->pending_vxlan_bitmap |= BIT_ULL(idx);
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pf->flags |= I40E_FLAG_VXLAN_FILTER_SYNC;
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pf->udp_ports[idx].index = 0;
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pf->pending_udp_bitmap |= BIT_ULL(idx);
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pf->flags |= I40E_FLAG_UDP_FILTER_SYNC;
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} else {
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netdev_warn(netdev, "vxlan port %d was not found, not deleting\n",
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ntohs(port));
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}
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#endif
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}
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/**
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* i40e_add_geneve_port - Get notifications about GENEVE ports that come up
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* @netdev: This physical port's netdev
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* @sa_family: Socket Family that GENEVE is notifying us about
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* @port: New UDP port number that GENEVE started listening to
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**/
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static void i40e_add_geneve_port(struct net_device *netdev,
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sa_family_t sa_family, __be16 port)
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{
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#if IS_ENABLED(CONFIG_GENEVE)
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struct i40e_netdev_priv *np = netdev_priv(netdev);
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struct i40e_vsi *vsi = np->vsi;
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struct i40e_pf *pf = vsi->back;
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u8 next_idx;
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u8 idx;
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if (sa_family == AF_INET6)
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return;
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idx = i40e_get_udp_port_idx(pf, port);
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/* Check if port already exists */
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if (idx < I40E_MAX_PF_UDP_OFFLOAD_PORTS) {
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netdev_info(netdev, "udp port %d already offloaded\n",
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ntohs(port));
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return;
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}
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/* Now check if there is space to add the new port */
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next_idx = i40e_get_udp_port_idx(pf, 0);
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if (next_idx == I40E_MAX_PF_UDP_OFFLOAD_PORTS) {
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netdev_info(netdev, "maximum number of UDP ports reached, not adding port %d\n",
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ntohs(port));
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return;
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}
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/* New port: add it and mark its index in the bitmap */
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pf->udp_ports[next_idx].index = port;
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pf->udp_ports[next_idx].type = I40E_AQC_TUNNEL_TYPE_NGE;
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pf->pending_udp_bitmap |= BIT_ULL(next_idx);
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pf->flags |= I40E_FLAG_UDP_FILTER_SYNC;
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dev_info(&pf->pdev->dev, "adding geneve port %d\n", ntohs(port));
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#endif
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}
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/**
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* i40e_del_geneve_port - Get notifications about GENEVE ports that go away
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* @netdev: This physical port's netdev
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* @sa_family: Socket Family that GENEVE is notifying us about
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* @port: UDP port number that GENEVE stopped listening to
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**/
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static void i40e_del_geneve_port(struct net_device *netdev,
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sa_family_t sa_family, __be16 port)
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{
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#if IS_ENABLED(CONFIG_GENEVE)
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struct i40e_netdev_priv *np = netdev_priv(netdev);
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struct i40e_vsi *vsi = np->vsi;
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struct i40e_pf *pf = vsi->back;
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u8 idx;
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if (sa_family == AF_INET6)
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return;
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idx = i40e_get_udp_port_idx(pf, port);
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/* Check if port already exists */
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if (idx < I40E_MAX_PF_UDP_OFFLOAD_PORTS) {
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/* if port exists, set it to 0 (mark for deletion)
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* and make it pending
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*/
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pf->udp_ports[idx].index = 0;
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pf->pending_udp_bitmap |= BIT_ULL(idx);
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pf->flags |= I40E_FLAG_UDP_FILTER_SYNC;
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dev_info(&pf->pdev->dev, "deleting geneve port %d\n",
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ntohs(port));
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} else {
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netdev_warn(netdev, "geneve port %d was not found, not deleting\n",
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ntohs(port));
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}
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#endif
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}
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static int i40e_get_phys_port_id(struct net_device *netdev,
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struct netdev_phys_item_id *ppid)
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{
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@ -8752,7 +8846,10 @@ static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
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nlflags, 0, 0, filter_mask, NULL);
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}
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#define I40E_MAX_TUNNEL_HDR_LEN 80
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/* Hardware supports L4 tunnel length of 128B (=2^7) which includes
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* inner mac plus all inner ethertypes.
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*/
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#define I40E_MAX_TUNNEL_HDR_LEN 128
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/**
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* i40e_features_check - Validate encapsulated packet conforms to limits
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* @skb: skb buff
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@ -8764,7 +8861,7 @@ static netdev_features_t i40e_features_check(struct sk_buff *skb,
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netdev_features_t features)
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{
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if (skb->encapsulation &&
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(skb_inner_mac_header(skb) - skb_transport_header(skb) >
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((skb_inner_network_header(skb) - skb_transport_header(skb)) >
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I40E_MAX_TUNNEL_HDR_LEN))
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return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
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@ -8799,9 +8896,13 @@ static const struct net_device_ops i40e_netdev_ops = {
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.ndo_get_vf_config = i40e_ndo_get_vf_config,
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.ndo_set_vf_link_state = i40e_ndo_set_vf_link_state,
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.ndo_set_vf_spoofchk = i40e_ndo_set_vf_spoofchk,
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#ifdef CONFIG_I40E_VXLAN
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#if IS_ENABLED(CONFIG_VXLAN)
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.ndo_add_vxlan_port = i40e_add_vxlan_port,
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.ndo_del_vxlan_port = i40e_del_vxlan_port,
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#endif
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#if IS_ENABLED(CONFIG_GENEVE)
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.ndo_add_geneve_port = i40e_add_geneve_port,
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.ndo_del_geneve_port = i40e_del_geneve_port,
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#endif
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.ndo_get_phys_port_id = i40e_get_phys_port_id,
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.ndo_fdb_add = i40e_ndo_fdb_add,
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@ -8836,6 +8937,7 @@ static int i40e_config_netdev(struct i40e_vsi *vsi)
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np->vsi = vsi;
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netdev->hw_enc_features |= NETIF_F_IP_CSUM |
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NETIF_F_RXCSUM |
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NETIF_F_GSO_UDP_TUNNEL |
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NETIF_F_GSO_GRE |
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NETIF_F_TSO;
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@ -10348,6 +10450,9 @@ static void i40e_print_features(struct i40e_pf *pf)
|
|||
i += snprintf(&buf[i], REMAIN(i), " DCB");
|
||||
#if IS_ENABLED(CONFIG_VXLAN)
|
||||
i += snprintf(&buf[i], REMAIN(i), " VxLAN");
|
||||
#endif
|
||||
#if IS_ENABLED(CONFIG_GENEVE)
|
||||
i += snprintf(&buf[i], REMAIN(i), " Geneve");
|
||||
#endif
|
||||
if (pf->flags & I40E_FLAG_PTP)
|
||||
i += snprintf(&buf[i], REMAIN(i), " PTP");
|
||||
|
|
|
|||
|
|
@ -1380,7 +1380,7 @@ static inline void i40e_rx_checksum(struct i40e_vsi *vsi,
|
|||
if (rx_error & BIT(I40E_RX_DESC_ERROR_PPRS_SHIFT))
|
||||
return;
|
||||
|
||||
/* If VXLAN traffic has an outer UDPv4 checksum we need to check
|
||||
/* If VXLAN/GENEVE traffic has an outer UDPv4 checksum we need to check
|
||||
* it in the driver, hardware does not do it for us.
|
||||
* Since L3L4P bit was set we assume a valid IHL value (>=5)
|
||||
* so the total length of IPv4 header is IHL*4 bytes
|
||||
|
|
@ -2001,7 +2001,7 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
|
|||
if (!(tx_flags & (I40E_TX_FLAGS_IPV4 | I40E_TX_FLAGS_IPV6)))
|
||||
return;
|
||||
|
||||
if (!(tx_flags & I40E_TX_FLAGS_VXLAN_TUNNEL)) {
|
||||
if (!(tx_flags & I40E_TX_FLAGS_UDP_TUNNEL)) {
|
||||
/* snag network header to get L4 type and address */
|
||||
hdr.network = skb_network_header(skb);
|
||||
|
||||
|
|
@ -2086,7 +2086,7 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
|
|||
I40E_TXD_FLTR_QW1_FD_STATUS_SHIFT;
|
||||
|
||||
dtype_cmd |= I40E_TXD_FLTR_QW1_CNT_ENA_MASK;
|
||||
if (!(tx_flags & I40E_TX_FLAGS_VXLAN_TUNNEL))
|
||||
if (!(tx_flags & I40E_TX_FLAGS_UDP_TUNNEL))
|
||||
dtype_cmd |=
|
||||
((u32)I40E_FD_ATR_STAT_IDX(pf->hw.pf_id) <<
|
||||
I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) &
|
||||
|
|
@ -2319,7 +2319,7 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 *tx_flags,
|
|||
oudph = udp_hdr(skb);
|
||||
oiph = ip_hdr(skb);
|
||||
l4_tunnel = I40E_TXD_CTX_UDP_TUNNELING;
|
||||
*tx_flags |= I40E_TX_FLAGS_VXLAN_TUNNEL;
|
||||
*tx_flags |= I40E_TX_FLAGS_UDP_TUNNEL;
|
||||
break;
|
||||
case IPPROTO_GRE:
|
||||
l4_tunnel = I40E_TXD_CTX_GRE_TUNNELING;
|
||||
|
|
|
|||
|
|
@ -163,7 +163,7 @@ enum i40e_dyn_idx_t {
|
|||
#define I40E_TX_FLAGS_FSO BIT(7)
|
||||
#define I40E_TX_FLAGS_TSYN BIT(8)
|
||||
#define I40E_TX_FLAGS_FD_SB BIT(9)
|
||||
#define I40E_TX_FLAGS_VXLAN_TUNNEL BIT(10)
|
||||
#define I40E_TX_FLAGS_UDP_TUNNEL BIT(10)
|
||||
#define I40E_TX_FLAGS_VLAN_MASK 0xffff0000
|
||||
#define I40E_TX_FLAGS_VLAN_PRIO_MASK 0xe0000000
|
||||
#define I40E_TX_FLAGS_VLAN_PRIO_SHIFT 29
|
||||
|
|
|
|||
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