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Merge branch 'be2net-next'

Browse source 
Sathya Perla says:

====================
be2net: add vxlan offload support

The first patch adds the FW cmds needed to configure the Skyhawk-R
chip for supporting VxLAN offloads. The second patch implements the
ndo_add/del_vxlan_port() methods and the plumbing for supporting
RX/TX csum, TSO and RSS steering offloads for VxLAN traffic.

v2 changes:
NETIF_F_SG need not be set for hw_enc_features by the driver as it is
done by the stack.

v3 changes:
* Defer FW cmds needed for VxLAN offloads to a workqueue
* Reset FW to VxLAN offloads disabled state in the unload path

v4 changes:
* Revert the usage of workqueue (introduced in v3) to implement
ndo_add/del_vxlan_port() as it is currently not needed (none of the
FW cmd calls sleep.) Suggested by David M.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2014-03-28 14:25:02 -04:00
commit 1d784724db
5 changed files with 278 additions and 66 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/net/ethernet/emulex/benet/be.h
View file

@ -296,6 +296,7 @@ struct be_rx_compl_info {
u8 qnq;
u8 pkt_type;
u8 ip_frag;
u8 tunneled;
};
struct be_rx_obj {
@ -371,10 +372,11 @@ enum vf_state {
#define BE_FLAGS_WORKER_SCHEDULED (1 << 3)
#define BE_FLAGS_VLAN_PROMISC (1 << 4)
#define BE_FLAGS_NAPI_ENABLED (1 << 9)
#define BE_UC_PMAC_COUNT 30
#define BE_VF_UC_PMAC_COUNT 2
#define BE_FLAGS_QNQ_ASYNC_EVT_RCVD (1 << 11)
#define BE_FLAGS_VXLAN_OFFLOADS (1 << 12)
#define BE_UC_PMAC_COUNT 30
#define BE_VF_UC_PMAC_COUNT 2
/* Ethtool set_dump flags */
#define LANCER_INITIATE_FW_DUMP 0x1
@ -494,6 +496,7 @@ struct be_adapter {
u32 sli_family;
u8 hba_port_num;
u16 pvid;
__be16 vxlan_port;
struct phy_info phy;
u8 wol_cap;
bool wol_en;

133
drivers/net/ethernet/emulex/benet/be_cmds.c
View file

@ -3503,14 +3503,11 @@ int be_cmd_get_profile_config(struct be_adapter *adapter,
return status;
}
/* Currently only Lancer uses this command and it supports version 0 only
* Uses sync mcc
*/
int be_cmd_set_profile_config(struct be_adapter *adapter, u32 bps,
u8 domain)
int be_cmd_set_profile_config(struct be_adapter *adapter, void *desc,
int size, u8 version, u8 domain)
{
struct be_mcc_wrb *wrb;
struct be_cmd_req_set_profile_config *req;
struct be_mcc_wrb *wrb;
int status;
spin_lock_bh(&adapter->mcc_lock);
@ -3522,44 +3519,116 @@ int be_cmd_set_profile_config(struct be_adapter *adapter, u32 bps,
}
req = embedded_payload(wrb);
be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
OPCODE_COMMON_SET_PROFILE_CONFIG, sizeof(*req),
wrb, NULL);
req->hdr.version = version;
req->hdr.domain = domain;
req->desc_count = cpu_to_le32(1);
req->nic_desc.hdr.desc_type = NIC_RESOURCE_DESC_TYPE_V0;
req->nic_desc.hdr.desc_len = RESOURCE_DESC_SIZE_V0;
req->nic_desc.flags = (1 << QUN) | (1 << IMM) | (1 << NOSV);
req->nic_desc.pf_num = adapter->pf_number;
req->nic_desc.vf_num = domain;
memcpy(req->desc, desc, size);
/* Mark fields invalid */
req->nic_desc.unicast_mac_count = 0xFFFF;
req->nic_desc.mcc_count = 0xFFFF;
req->nic_desc.vlan_count = 0xFFFF;
req->nic_desc.mcast_mac_count = 0xFFFF;
req->nic_desc.txq_count = 0xFFFF;
req->nic_desc.rq_count = 0xFFFF;
req->nic_desc.rssq_count = 0xFFFF;
req->nic_desc.lro_count = 0xFFFF;
req->nic_desc.cq_count = 0xFFFF;
req->nic_desc.toe_conn_count = 0xFFFF;
req->nic_desc.eq_count = 0xFFFF;
req->nic_desc.link_param = 0xFF;
req->nic_desc.bw_min = 0xFFFFFFFF;
req->nic_desc.acpi_params = 0xFF;
req->nic_desc.wol_param = 0x0F;
/* Change BW */
req->nic_desc.bw_min = cpu_to_le32(bps);
req->nic_desc.bw_max = cpu_to_le32(bps);
status = be_mcc_notify_wait(adapter);
err:
spin_unlock_bh(&adapter->mcc_lock);
return status;
}
/* Mark all fields invalid */
void be_reset_nic_desc(struct be_nic_res_desc *nic)
{
memset(nic, 0, sizeof(*nic));
nic->unicast_mac_count = 0xFFFF;
nic->mcc_count = 0xFFFF;
nic->vlan_count = 0xFFFF;
nic->mcast_mac_count = 0xFFFF;
nic->txq_count = 0xFFFF;
nic->rq_count = 0xFFFF;
nic->rssq_count = 0xFFFF;
nic->lro_count = 0xFFFF;
nic->cq_count = 0xFFFF;
nic->toe_conn_count = 0xFFFF;
nic->eq_count = 0xFFFF;
nic->link_param = 0xFF;
nic->acpi_params = 0xFF;
nic->wol_param = 0x0F;
nic->bw_min = 0xFFFFFFFF;
nic->bw_max = 0xFFFFFFFF;
}
int be_cmd_config_qos(struct be_adapter *adapter, u32 bps, u8 domain)
{
if (lancer_chip(adapter)) {
struct be_nic_res_desc nic_desc;
be_reset_nic_desc(&nic_desc);
nic_desc.hdr.desc_type = NIC_RESOURCE_DESC_TYPE_V0;
nic_desc.hdr.desc_len = RESOURCE_DESC_SIZE_V0;
nic_desc.flags = (1 << QUN_SHIFT) | (1 << IMM_SHIFT) |
(1 << NOSV_SHIFT);
nic_desc.pf_num = adapter->pf_number;
nic_desc.vf_num = domain;
nic_desc.bw_max = cpu_to_le32(bps);
return be_cmd_set_profile_config(adapter, &nic_desc,
RESOURCE_DESC_SIZE_V0,
0, domain);
} else {
return be_cmd_set_qos(adapter, bps, domain);
}
}
int be_cmd_manage_iface(struct be_adapter *adapter, u32 iface, u8 op)
{
struct be_mcc_wrb *wrb;
struct be_cmd_req_manage_iface_filters *req;
int status;
if (iface == 0xFFFFFFFF)
return -1;
spin_lock_bh(&adapter->mcc_lock);
wrb = wrb_from_mccq(adapter);
if (!wrb) {
status = -EBUSY;
goto err;
}
req = embedded_payload(wrb);
be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
OPCODE_COMMON_MANAGE_IFACE_FILTERS, sizeof(*req),
wrb, NULL);
req->op = op;
req->target_iface_id = cpu_to_le32(iface);
status = be_mcc_notify_wait(adapter);
err:
spin_unlock_bh(&adapter->mcc_lock);
return status;
}
int be_cmd_set_vxlan_port(struct be_adapter *adapter, __be16 port)
{
struct be_port_res_desc port_desc;
memset(&port_desc, 0, sizeof(port_desc));
port_desc.hdr.desc_type = PORT_RESOURCE_DESC_TYPE_V1;
port_desc.hdr.desc_len = RESOURCE_DESC_SIZE_V1;
port_desc.flags = (1 << IMM_SHIFT) | (1 << NOSV_SHIFT);
port_desc.link_num = adapter->hba_port_num;
if (port) {
port_desc.nv_flags = NV_TYPE_VXLAN | (1 << SOCVID_SHIFT) |
(1 << RCVID_SHIFT);
port_desc.nv_port = swab16(port);
} else {
port_desc.nv_flags = NV_TYPE_DISABLED;
port_desc.nv_port = 0;
}
return be_cmd_set_profile_config(adapter, &port_desc,
RESOURCE_DESC_SIZE_V1, 1, 0);
}
int be_cmd_get_if_id(struct be_adapter *adapter, struct be_vf_cfg *vf_cfg,
int vf_num)
{

69
drivers/net/ethernet/emulex/benet/be_cmds.h
View file

@ -222,6 +222,7 @@ struct be_mcc_mailbox {
#define OPCODE_COMMON_GET_FN_PRIVILEGES 170
#define OPCODE_COMMON_READ_OBJECT 171
#define OPCODE_COMMON_WRITE_OBJECT 172
#define OPCODE_COMMON_MANAGE_IFACE_FILTERS 193
#define OPCODE_COMMON_GET_IFACE_LIST 194
#define OPCODE_COMMON_ENABLE_DISABLE_VF 196
@ -1824,18 +1825,33 @@ struct be_cmd_req_set_ext_fat_caps {
#define PORT_RESOURCE_DESC_TYPE_V1 0x55
#define MAX_RESOURCE_DESC 264
/* QOS unit number */
#define QUN 4
/* Immediate */
#define IMM 6
/* No save */
#define NOSV 7
#define IMM_SHIFT 6 /* Immediate */
#define NOSV_SHIFT 7 /* No save */
struct be_res_desc_hdr {
u8 desc_type;
u8 desc_len;
} __packed;
struct be_port_res_desc {
struct be_res_desc_hdr hdr;
u8 rsvd0;
u8 flags;
u8 link_num;
u8 mc_type;
u16 rsvd1;
#define NV_TYPE_MASK 0x3 /* bits 0-1 */
#define NV_TYPE_DISABLED 1
#define NV_TYPE_VXLAN 3
#define SOCVID_SHIFT 2 /* Strip outer vlan */
#define RCVID_SHIFT 4 /* Report vlan */
u8 nv_flags;
u8 rsvd2;
__le16 nv_port; /* vxlan/gre port */
u32 rsvd3[19];
} __packed;
struct be_pcie_res_desc {
struct be_res_desc_hdr hdr;
u8 rsvd0;
@ -1856,6 +1872,8 @@ struct be_pcie_res_desc {
struct be_nic_res_desc {
struct be_res_desc_hdr hdr;
u8 rsvd1;
#define QUN_SHIFT 4 /* QoS is in absolute units */
u8 flags;
u8 vf_num;
u8 rsvd2;
@ -1896,16 +1914,6 @@ enum mc_type {
vNIC2 = 0x07
};
struct be_port_res_desc {
struct be_res_desc_hdr hdr;
u8 rsvd0;
u8 flags;
u8 rsvd1;
u8 mc_type;
u16 rsvd2;
u32 rsvd3[20];
} __packed;
/* Is BE in a multi-channel mode */
static inline bool be_is_mc(struct be_adapter *adapter)
{
@ -1940,7 +1948,7 @@ struct be_cmd_req_set_profile_config {
struct be_cmd_req_hdr hdr;
u32 rsvd;
u32 desc_count;
struct be_nic_res_desc nic_desc;
u8 desc[RESOURCE_DESC_SIZE_V1];
};
struct be_cmd_resp_set_profile_config {
@ -1999,6 +2007,26 @@ struct be_cmd_req_set_ll_link {
u32 link_config; /* Bit 0: UP_DOWN, Bit 9: PLINK */
};
/************** Manage IFACE Filters *******************/
#define OP_CONVERT_NORMAL_TO_TUNNEL 0
#define OP_CONVERT_TUNNEL_TO_NORMAL 1
struct be_cmd_req_manage_iface_filters {
struct be_cmd_req_hdr hdr;
u8 op;
u8 rsvd0;
u8 flags;
u8 rsvd1;
u32 tunnel_iface_id;
u32 target_iface_id;
u8 mac[6];
u16 vlan_tag;
u32 tenant_id;
u32 filter_id;
u32 cap_flags;
u32 cap_control_flags;
} __packed;
int be_pci_fnum_get(struct be_adapter *adapter);
int be_fw_wait_ready(struct be_adapter *adapter);
int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
@ -2073,7 +2101,7 @@ int be_cmd_get_seeprom_data(struct be_adapter *adapter,
int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num,
u8 loopback_type, u8 enable);
int be_cmd_get_phy_info(struct be_adapter *adapter);
int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain);
int be_cmd_config_qos(struct be_adapter *adapter, u32 bps, u8 domain);
void be_detect_error(struct be_adapter *adapter);
int be_cmd_get_die_temperature(struct be_adapter *adapter);
int be_cmd_get_cntl_attributes(struct be_adapter *adapter);
@ -2114,7 +2142,8 @@ int be_cmd_get_func_config(struct be_adapter *adapter,
struct be_resources *res);
int be_cmd_get_profile_config(struct be_adapter *adapter,
struct be_resources *res, u8 domain);
int be_cmd_set_profile_config(struct be_adapter *adapter, u32 bps, u8 domain);
int be_cmd_set_profile_config(struct be_adapter *adapter, void *desc,
int size, u8 version, u8 domain);
int be_cmd_get_active_profile(struct be_adapter *adapter, u16 *profile);
int be_cmd_get_if_id(struct be_adapter *adapter, struct be_vf_cfg *vf_cfg,
int vf_num);
@ -2122,3 +2151,5 @@ int be_cmd_enable_vf(struct be_adapter *adapter, u8 domain);
int be_cmd_intr_set(struct be_adapter *adapter, bool intr_enable);
int be_cmd_set_logical_link_config(struct be_adapter *adapter,
int link_state, u8 domain);
int be_cmd_set_vxlan_port(struct be_adapter *adapter, __be16 port);
int be_cmd_manage_iface(struct be_adapter *adapter, u32 iface, u8 op);

3
drivers/net/ethernet/emulex/benet/be_hw.h
View file

@ -407,7 +407,8 @@ struct amap_eth_rx_compl_v1 {
u8 vntagp; /* dword 2 */
u8 header_len[8]; /* dword 2 */
u8 header_split[2]; /* dword 2 */
u8 rsvd1[13]; /* dword 2 */
u8 rsvd1[12]; /* dword 2 */
u8 tunneled;
u8 valid; /* dword 2 */
u8 rsshash[32]; /* dword 3 */
} __packed;

132
drivers/net/ethernet/emulex/benet/be_main.c
View file

@ -23,6 +23,7 @@
#include <linux/aer.h>
#include <linux/if_bridge.h>
#include <net/busy_poll.h>
#include <net/vxlan.h>
MODULE_VERSION(DRV_VER);
MODULE_DEVICE_TABLE(pci, be_dev_ids);
@ -718,10 +719,23 @@ static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
return vlan_tag;
}
/* Used only for IP tunnel packets */
static u16 skb_inner_ip_proto(struct sk_buff *skb)
{
return (inner_ip_hdr(skb)->version == 4) ?
inner_ip_hdr(skb)->protocol : inner_ipv6_hdr(skb)->nexthdr;
}
static u16 skb_ip_proto(struct sk_buff *skb)
{
return (ip_hdr(skb)->version == 4) ?
ip_hdr(skb)->protocol : ipv6_hdr(skb)->nexthdr;
}
static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
struct sk_buff *skb, u32 wrb_cnt, u32 len, bool skip_hw_vlan)
{
u16 vlan_tag;
u16 vlan_tag, proto;
memset(hdr, 0, sizeof(*hdr));
@ -734,9 +748,15 @@ static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
if (is_tcp_pkt(skb))
if (skb->encapsulation) {
AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1);
proto = skb_inner_ip_proto(skb);
} else {
proto = skb_ip_proto(skb);
}
if (proto == IPPROTO_TCP)
AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
else if (is_udp_pkt(skb))
else if (proto == IPPROTO_UDP)
AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
}
@ -1346,11 +1366,7 @@ static int be_set_vf_tx_rate(struct net_device *netdev,
return -EINVAL;
}
if (lancer_chip(adapter))
status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
else
status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
status = be_cmd_config_qos(adapter, rate / 10, vf + 1);
if (status)
dev_err(&adapter->pdev->dev,
"tx rate %d on VF %d failed\n", rate, vf);
@ -1471,9 +1487,10 @@ static void be_rx_stats_update(struct be_rx_obj *rxo,
static inline bool csum_passed(struct be_rx_compl_info *rxcp)
{
/* L4 checksum is not reliable for non TCP/UDP packets.
* Also ignore ipcksm for ipv6 pkts */
* Also ignore ipcksm for ipv6 pkts
*/
return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
(rxcp->ip_csum || rxcp->ipv6);
(rxcp->ip_csum || rxcp->ipv6) && !rxcp->err;
}
static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo)
@ -1616,6 +1633,8 @@ static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
if (netdev->features & NETIF_F_RXHASH)
skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
skb->encapsulation = rxcp->tunneled;
skb_mark_napi_id(skb, napi);
if (rxcp->vlanf)
@ -1672,6 +1691,8 @@ static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
if (adapter->netdev->features & NETIF_F_RXHASH)
skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);
skb->encapsulation = rxcp->tunneled;
skb_mark_napi_id(skb, napi);
if (rxcp->vlanf)
@ -1708,6 +1729,8 @@ static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
compl);
}
rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
rxcp->tunneled =
AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tunneled, compl);
}
static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
@ -2838,6 +2861,9 @@ static int be_open(struct net_device *netdev)
netif_tx_start_all_queues(netdev);
be_roce_dev_open(adapter);
if (skyhawk_chip(adapter))
vxlan_get_rx_port(netdev);
return 0;
err:
be_close(adapter->netdev);
@ -2993,6 +3019,19 @@ static void be_mac_clear(struct be_adapter *adapter)
}
}
static void be_disable_vxlan_offloads(struct be_adapter *adapter)
{
if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS)
be_cmd_manage_iface(adapter, adapter->if_handle,
OP_CONVERT_TUNNEL_TO_NORMAL);
if (adapter->vxlan_port)
be_cmd_set_vxlan_port(adapter, 0);
adapter->flags &= ~BE_FLAGS_VXLAN_OFFLOADS;
adapter->vxlan_port = 0;
}
static int be_clear(struct be_adapter *adapter)
{
be_cancel_worker(adapter);
@ -3000,6 +3039,8 @@ static int be_clear(struct be_adapter *adapter)
if (sriov_enabled(adapter))
be_vf_clear(adapter);
be_disable_vxlan_offloads(adapter);
/* delete the primary mac along with the uc-mac list */
be_mac_clear(adapter);
@ -3124,7 +3165,7 @@ static int be_vf_setup(struct be_adapter *adapter)
* Allow full available bandwidth
*/
if (BE3_chip(adapter) && !old_vfs)
be_cmd_set_qos(adapter, 1000, vf+1);
be_cmd_config_qos(adapter, 1000, vf + 1);
status = be_cmd_link_status_query(adapter, &lnk_speed,
NULL, vf + 1);
@ -4124,6 +4165,65 @@ static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB);
}
static void be_add_vxlan_port(struct net_device *netdev, sa_family_t sa_family,
__be16 port)
{
struct be_adapter *adapter = netdev_priv(netdev);
struct device *dev = &adapter->pdev->dev;
int status;
if (lancer_chip(adapter) || BEx_chip(adapter))
return;
if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS) {
dev_warn(dev, "Cannot add UDP port %d for VxLAN offloads\n",
be16_to_cpu(port));
dev_info(dev,
"Only one UDP port supported for VxLAN offloads\n");
return;
}
status = be_cmd_manage_iface(adapter, adapter->if_handle,
OP_CONVERT_NORMAL_TO_TUNNEL);
if (status) {
dev_warn(dev, "Failed to convert normal interface to tunnel\n");
goto err;
}
status = be_cmd_set_vxlan_port(adapter, port);
if (status) {
dev_warn(dev, "Failed to add VxLAN port\n");
goto err;
}
adapter->flags |= BE_FLAGS_VXLAN_OFFLOADS;
adapter->vxlan_port = port;
dev_info(dev, "Enabled VxLAN offloads for UDP port %d\n",
be16_to_cpu(port));
return;
err:
be_disable_vxlan_offloads(adapter);
return;
}
static void be_del_vxlan_port(struct net_device *netdev, sa_family_t sa_family,
__be16 port)
{
struct be_adapter *adapter = netdev_priv(netdev);
if (lancer_chip(adapter) || BEx_chip(adapter))
return;
if (adapter->vxlan_port != port)
return;
be_disable_vxlan_offloads(adapter);
dev_info(&adapter->pdev->dev,
"Disabled VxLAN offloads for UDP port %d\n",
be16_to_cpu(port));
}
static const struct net_device_ops be_netdev_ops = {
.ndo_open = be_open,
.ndo_stop = be_close,
@ -4146,14 +4246,22 @@ static const struct net_device_ops be_netdev_ops = {
.ndo_bridge_setlink = be_ndo_bridge_setlink,
.ndo_bridge_getlink = be_ndo_bridge_getlink,
#ifdef CONFIG_NET_RX_BUSY_POLL
.ndo_busy_poll = be_busy_poll
.ndo_busy_poll = be_busy_poll,
#endif
.ndo_add_vxlan_port = be_add_vxlan_port,
.ndo_del_vxlan_port = be_del_vxlan_port,
};
static void be_netdev_init(struct net_device *netdev)
{
struct be_adapter *adapter = netdev_priv(netdev);
if (skyhawk_chip(adapter)) {
netdev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
NETIF_F_TSO | NETIF_F_TSO6 |
NETIF_F_GSO_UDP_TUNNEL;
netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
}
netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
NETIF_F_HW_VLAN_CTAG_TX;