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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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be2net: csum, tso and rss steering offload support for VxLAN
This patch mainly implements the add/del_vxlan_port() methods by invoking the needed FW cmds for supporting VxLAN offloads for Skyhawk-R. Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sathya Perla
David S. Miller
parent
a401801c6e
commit
c9c47142f6
@ -296,6 +296,7 @@ struct be_rx_compl_info {
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u8 qnq;
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u8 pkt_type;
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u8 ip_frag;
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u8 tunneled;
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};
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struct be_rx_obj {
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@ -371,10 +372,11 @@ enum vf_state {
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#define BE_FLAGS_WORKER_SCHEDULED (1 << 3)
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#define BE_FLAGS_VLAN_PROMISC (1 << 4)
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#define BE_FLAGS_NAPI_ENABLED (1 << 9)
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#define BE_UC_PMAC_COUNT 30
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#define BE_VF_UC_PMAC_COUNT 2
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#define BE_FLAGS_QNQ_ASYNC_EVT_RCVD (1 << 11)
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#define BE_FLAGS_VXLAN_OFFLOADS (1 << 12)
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#define BE_UC_PMAC_COUNT 30
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#define BE_VF_UC_PMAC_COUNT 2
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/* Ethtool set_dump flags */
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#define LANCER_INITIATE_FW_DUMP 0x1
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@ -494,6 +496,7 @@ struct be_adapter {
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u32 sli_family;
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u8 hba_port_num;
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u16 pvid;
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__be16 vxlan_port;
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struct phy_info phy;
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u8 wol_cap;
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bool wol_en;
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@ -407,7 +407,8 @@ struct amap_eth_rx_compl_v1 {
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u8 vntagp; /* dword 2 */
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u8 header_len[8]; /* dword 2 */
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u8 header_split[2]; /* dword 2 */
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u8 rsvd1[13]; /* dword 2 */
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u8 rsvd1[12]; /* dword 2 */
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u8 tunneled;
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u8 valid; /* dword 2 */
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u8 rsshash[32]; /* dword 3 */
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} __packed;
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@ -23,6 +23,7 @@
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#include <linux/aer.h>
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#include <linux/if_bridge.h>
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#include <net/busy_poll.h>
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#include <net/vxlan.h>
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MODULE_VERSION(DRV_VER);
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MODULE_DEVICE_TABLE(pci, be_dev_ids);
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@ -718,10 +719,23 @@ static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
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return vlan_tag;
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}
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/* Used only for IP tunnel packets */
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static u16 skb_inner_ip_proto(struct sk_buff *skb)
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{
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return (inner_ip_hdr(skb)->version == 4) ?
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inner_ip_hdr(skb)->protocol : inner_ipv6_hdr(skb)->nexthdr;
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}
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static u16 skb_ip_proto(struct sk_buff *skb)
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{
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return (ip_hdr(skb)->version == 4) ?
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ip_hdr(skb)->protocol : ipv6_hdr(skb)->nexthdr;
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}
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static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
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struct sk_buff *skb, u32 wrb_cnt, u32 len, bool skip_hw_vlan)
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{
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u16 vlan_tag;
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u16 vlan_tag, proto;
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memset(hdr, 0, sizeof(*hdr));
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@ -734,9 +748,15 @@ static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
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if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
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AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
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} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
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if (is_tcp_pkt(skb))
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if (skb->encapsulation) {
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AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1);
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proto = skb_inner_ip_proto(skb);
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} else {
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proto = skb_ip_proto(skb);
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}
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if (proto == IPPROTO_TCP)
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AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
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else if (is_udp_pkt(skb))
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else if (proto == IPPROTO_UDP)
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AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
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}
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@ -1467,9 +1487,10 @@ static void be_rx_stats_update(struct be_rx_obj *rxo,
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static inline bool csum_passed(struct be_rx_compl_info *rxcp)
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{
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/* L4 checksum is not reliable for non TCP/UDP packets.
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* Also ignore ipcksm for ipv6 pkts */
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* Also ignore ipcksm for ipv6 pkts
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*/
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return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
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(rxcp->ip_csum || rxcp->ipv6);
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(rxcp->ip_csum || rxcp->ipv6) && !rxcp->err;
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}
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static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo)
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@ -1612,6 +1633,8 @@ static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
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skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
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if (netdev->features & NETIF_F_RXHASH)
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skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
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skb->encapsulation = rxcp->tunneled;
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skb_mark_napi_id(skb, napi);
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if (rxcp->vlanf)
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@ -1668,6 +1691,8 @@ static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
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skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
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if (adapter->netdev->features & NETIF_F_RXHASH)
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skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
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skb->encapsulation = rxcp->tunneled;
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skb_mark_napi_id(skb, napi);
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if (rxcp->vlanf)
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@ -1704,6 +1729,8 @@ static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
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compl);
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}
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rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
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rxcp->tunneled =
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AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tunneled, compl);
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}
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static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
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@ -2834,6 +2861,9 @@ static int be_open(struct net_device *netdev)
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netif_tx_start_all_queues(netdev);
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be_roce_dev_open(adapter);
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if (skyhawk_chip(adapter))
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vxlan_get_rx_port(netdev);
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return 0;
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err:
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be_close(adapter->netdev);
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@ -2989,6 +3019,19 @@ static void be_mac_clear(struct be_adapter *adapter)
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}
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}
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static void be_disable_vxlan_offloads(struct be_adapter *adapter)
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{
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if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS)
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be_cmd_manage_iface(adapter, adapter->if_handle,
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OP_CONVERT_TUNNEL_TO_NORMAL);
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if (adapter->vxlan_port)
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be_cmd_set_vxlan_port(adapter, 0);
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adapter->flags &= ~BE_FLAGS_VXLAN_OFFLOADS;
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adapter->vxlan_port = 0;
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}
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static int be_clear(struct be_adapter *adapter)
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{
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be_cancel_worker(adapter);
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@ -2996,6 +3039,8 @@ static int be_clear(struct be_adapter *adapter)
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if (sriov_enabled(adapter))
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be_vf_clear(adapter);
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be_disable_vxlan_offloads(adapter);
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/* delete the primary mac along with the uc-mac list */
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be_mac_clear(adapter);
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@ -4120,6 +4165,65 @@ static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
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BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB);
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}
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static void be_add_vxlan_port(struct net_device *netdev, sa_family_t sa_family,
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__be16 port)
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{
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struct be_adapter *adapter = netdev_priv(netdev);
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struct device *dev = &adapter->pdev->dev;
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int status;
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if (lancer_chip(adapter) || BEx_chip(adapter))
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return;
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if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS) {
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dev_warn(dev, "Cannot add UDP port %d for VxLAN offloads\n",
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be16_to_cpu(port));
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dev_info(dev,
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"Only one UDP port supported for VxLAN offloads\n");
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return;
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}
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status = be_cmd_manage_iface(adapter, adapter->if_handle,
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OP_CONVERT_NORMAL_TO_TUNNEL);
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if (status) {
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dev_warn(dev, "Failed to convert normal interface to tunnel\n");
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goto err;
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}
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status = be_cmd_set_vxlan_port(adapter, port);
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if (status) {
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dev_warn(dev, "Failed to add VxLAN port\n");
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goto err;
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}
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adapter->flags |= BE_FLAGS_VXLAN_OFFLOADS;
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adapter->vxlan_port = port;
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dev_info(dev, "Enabled VxLAN offloads for UDP port %d\n",
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be16_to_cpu(port));
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return;
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err:
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be_disable_vxlan_offloads(adapter);
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return;
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}
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static void be_del_vxlan_port(struct net_device *netdev, sa_family_t sa_family,
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__be16 port)
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{
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struct be_adapter *adapter = netdev_priv(netdev);
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if (lancer_chip(adapter) || BEx_chip(adapter))
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return;
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if (adapter->vxlan_port != port)
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return;
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be_disable_vxlan_offloads(adapter);
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dev_info(&adapter->pdev->dev,
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"Disabled VxLAN offloads for UDP port %d\n",
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be16_to_cpu(port));
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}
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static const struct net_device_ops be_netdev_ops = {
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.ndo_open = be_open,
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.ndo_stop = be_close,
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@ -4142,14 +4246,22 @@ static const struct net_device_ops be_netdev_ops = {
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.ndo_bridge_setlink = be_ndo_bridge_setlink,
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.ndo_bridge_getlink = be_ndo_bridge_getlink,
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#ifdef CONFIG_NET_RX_BUSY_POLL
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.ndo_busy_poll = be_busy_poll
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.ndo_busy_poll = be_busy_poll,
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#endif
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.ndo_add_vxlan_port = be_add_vxlan_port,
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.ndo_del_vxlan_port = be_del_vxlan_port,
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};
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static void be_netdev_init(struct net_device *netdev)
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{
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struct be_adapter *adapter = netdev_priv(netdev);
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if (skyhawk_chip(adapter)) {
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netdev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
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NETIF_F_TSO | NETIF_F_TSO6 |
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NETIF_F_GSO_UDP_TUNNEL;
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netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
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}
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netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
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NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
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NETIF_F_HW_VLAN_CTAG_TX;
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