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bnxt: convert to new udp_tunnel_nic infra
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Convert to new infra, taking advantage of sleeping in callbacks.

v2:
 - use bp->*_fw_dst_port_id != INVALID_HW_RING_ID as indication
   that the offload is active.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Jakub Kicinski authored and David S. Miller committed Jul 10, 2020
1 parent dc22185 commit 442a35a
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Showing 2 changed files with 40 additions and 113 deletions.
141 changes: 38 additions & 103 deletions drivers/net/ethernet/broadcom/bnxt/bnxt.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -4509,10 +4509,12 @@ static int bnxt_hwrm_tunnel_dst_port_free(struct bnxt *bp, u8 tunnel_type)

switch (tunnel_type) {
case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN:
req.tunnel_dst_port_id = bp->vxlan_fw_dst_port_id;
req.tunnel_dst_port_id = cpu_to_le16(bp->vxlan_fw_dst_port_id);
bp->vxlan_fw_dst_port_id = INVALID_HW_RING_ID;
break;
case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE:
req.tunnel_dst_port_id = bp->nge_fw_dst_port_id;
req.tunnel_dst_port_id = cpu_to_le16(bp->nge_fw_dst_port_id);
bp->nge_fw_dst_port_id = INVALID_HW_RING_ID;
break;
default:
break;
Expand Down Expand Up @@ -4547,10 +4549,11 @@ static int bnxt_hwrm_tunnel_dst_port_alloc(struct bnxt *bp, __be16 port,

switch (tunnel_type) {
case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN:
bp->vxlan_fw_dst_port_id = resp->tunnel_dst_port_id;
bp->vxlan_fw_dst_port_id =
le16_to_cpu(resp->tunnel_dst_port_id);
break;
case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE:
bp->nge_fw_dst_port_id = resp->tunnel_dst_port_id;
bp->nge_fw_dst_port_id = le16_to_cpu(resp->tunnel_dst_port_id);
break;
default:
break;
Expand Down Expand Up @@ -7578,16 +7581,12 @@ static int bnxt_hwrm_pcie_qstats(struct bnxt *bp)

static void bnxt_hwrm_free_tunnel_ports(struct bnxt *bp)
{
if (bp->vxlan_port_cnt) {
if (bp->vxlan_fw_dst_port_id != INVALID_HW_RING_ID)
bnxt_hwrm_tunnel_dst_port_free(
bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
}
bp->vxlan_port_cnt = 0;
if (bp->nge_port_cnt) {
if (bp->nge_fw_dst_port_id != INVALID_HW_RING_ID)
bnxt_hwrm_tunnel_dst_port_free(
bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
}
bp->nge_port_cnt = 0;
}

static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa)
Expand Down Expand Up @@ -9305,7 +9304,7 @@ static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
}

if (irq_re_init)
udp_tunnel_get_rx_info(bp->dev);
udp_tunnel_nic_reset_ntf(bp->dev);

set_bit(BNXT_STATE_OPEN, &bp->state);
bnxt_enable_int(bp);
Expand Down Expand Up @@ -10456,24 +10455,6 @@ static void bnxt_sp_task(struct work_struct *work)
bnxt_cfg_ntp_filters(bp);
if (test_and_clear_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event))
bnxt_hwrm_exec_fwd_req(bp);
if (test_and_clear_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event)) {
bnxt_hwrm_tunnel_dst_port_alloc(
bp, bp->vxlan_port,
TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
}
if (test_and_clear_bit(BNXT_VXLAN_DEL_PORT_SP_EVENT, &bp->sp_event)) {
bnxt_hwrm_tunnel_dst_port_free(
bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
}
if (test_and_clear_bit(BNXT_GENEVE_ADD_PORT_SP_EVENT, &bp->sp_event)) {
bnxt_hwrm_tunnel_dst_port_alloc(
bp, bp->nge_port,
TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
}
if (test_and_clear_bit(BNXT_GENEVE_DEL_PORT_SP_EVENT, &bp->sp_event)) {
bnxt_hwrm_tunnel_dst_port_free(
bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
}
if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event)) {
bnxt_hwrm_port_qstats(bp);
bnxt_hwrm_port_qstats_ext(bp);
Expand Down Expand Up @@ -11070,6 +11051,9 @@ static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev)
timer_setup(&bp->timer, bnxt_timer, 0);
bp->current_interval = BNXT_TIMER_INTERVAL;

bp->vxlan_fw_dst_port_id = INVALID_HW_RING_ID;
bp->nge_fw_dst_port_id = INVALID_HW_RING_ID;

clear_bit(BNXT_STATE_OPEN, &bp->state);
return 0;

Expand Down Expand Up @@ -11397,84 +11381,33 @@ static void bnxt_cfg_ntp_filters(struct bnxt *bp)

#endif /* CONFIG_RFS_ACCEL */

static void bnxt_udp_tunnel_add(struct net_device *dev,
struct udp_tunnel_info *ti)
static int bnxt_udp_tunnel_sync(struct net_device *netdev, unsigned int table)
{
struct bnxt *bp = netdev_priv(dev);

if (ti->sa_family != AF_INET6 && ti->sa_family != AF_INET)
return;

if (!netif_running(dev))
return;
struct bnxt *bp = netdev_priv(netdev);
struct udp_tunnel_info ti;
unsigned int cmd;

switch (ti->type) {
case UDP_TUNNEL_TYPE_VXLAN:
if (bp->vxlan_port_cnt && bp->vxlan_port != ti->port)
return;
udp_tunnel_nic_get_port(netdev, table, 0, &ti);
if (ti.type == UDP_TUNNEL_TYPE_VXLAN)
cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN;
else
cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE;

bp->vxlan_port_cnt++;
if (bp->vxlan_port_cnt == 1) {
bp->vxlan_port = ti->port;
set_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event);
bnxt_queue_sp_work(bp);
}
break;
case UDP_TUNNEL_TYPE_GENEVE:
if (bp->nge_port_cnt && bp->nge_port != ti->port)
return;
if (ti.port)
return bnxt_hwrm_tunnel_dst_port_alloc(bp, ti.port, cmd);

bp->nge_port_cnt++;
if (bp->nge_port_cnt == 1) {
bp->nge_port = ti->port;
set_bit(BNXT_GENEVE_ADD_PORT_SP_EVENT, &bp->sp_event);
}
break;
default:
return;
}

bnxt_queue_sp_work(bp);
return bnxt_hwrm_tunnel_dst_port_free(bp, cmd);
}

static void bnxt_udp_tunnel_del(struct net_device *dev,
struct udp_tunnel_info *ti)
{
struct bnxt *bp = netdev_priv(dev);

if (ti->sa_family != AF_INET6 && ti->sa_family != AF_INET)
return;

if (!netif_running(dev))
return;

switch (ti->type) {
case UDP_TUNNEL_TYPE_VXLAN:
if (!bp->vxlan_port_cnt || bp->vxlan_port != ti->port)
return;
bp->vxlan_port_cnt--;

if (bp->vxlan_port_cnt != 0)
return;

set_bit(BNXT_VXLAN_DEL_PORT_SP_EVENT, &bp->sp_event);
break;
case UDP_TUNNEL_TYPE_GENEVE:
if (!bp->nge_port_cnt || bp->nge_port != ti->port)
return;
bp->nge_port_cnt--;

if (bp->nge_port_cnt != 0)
return;

set_bit(BNXT_GENEVE_DEL_PORT_SP_EVENT, &bp->sp_event);
break;
default:
return;
}

bnxt_queue_sp_work(bp);
}
static const struct udp_tunnel_nic_info bnxt_udp_tunnels = {
.sync_table = bnxt_udp_tunnel_sync,
.flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP |
UDP_TUNNEL_NIC_INFO_OPEN_ONLY,
.tables = {
{ .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, },
{ .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_GENEVE, },
},
};

static int bnxt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
struct net_device *dev, u32 filter_mask,
Expand Down Expand Up @@ -11572,8 +11505,8 @@ static const struct net_device_ops bnxt_netdev_ops = {
#ifdef CONFIG_RFS_ACCEL
.ndo_rx_flow_steer = bnxt_rx_flow_steer,
#endif
.ndo_udp_tunnel_add = bnxt_udp_tunnel_add,
.ndo_udp_tunnel_del = bnxt_udp_tunnel_del,
.ndo_udp_tunnel_add = udp_tunnel_nic_add_port,
.ndo_udp_tunnel_del = udp_tunnel_nic_del_port,
.ndo_bpf = bnxt_xdp,
.ndo_xdp_xmit = bnxt_xdp_xmit,
.ndo_bridge_getlink = bnxt_bridge_getlink,
Expand Down Expand Up @@ -12063,6 +11996,8 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE |
NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM |
NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_PARTIAL;
dev->udp_tunnel_nic_info = &bnxt_udp_tunnels;

dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM |
NETIF_F_GSO_GRE_CSUM;
dev->vlan_features = dev->hw_features | NETIF_F_HIGHDMA;
Expand Down
12 changes: 2 additions & 10 deletions drivers/net/ethernet/broadcom/bnxt/bnxt.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -1765,12 +1765,8 @@ struct bnxt {
((u64)(maj) << 48 | (u64)(min) << 32 | (u64)(bld) << 16 | (rsv))
#define BNXT_FW_MAJ(bp) ((bp)->fw_ver_code >> 48)

__be16 vxlan_port;
u8 vxlan_port_cnt;
__le16 vxlan_fw_dst_port_id;
__be16 nge_port;
u8 nge_port_cnt;
__le16 nge_fw_dst_port_id;
u16 vxlan_fw_dst_port_id;
u16 nge_fw_dst_port_id;
u8 port_partition_type;
u8 port_count;
u16 br_mode;
Expand All @@ -1790,16 +1786,12 @@ struct bnxt {
#define BNXT_RX_NTP_FLTR_SP_EVENT 1
#define BNXT_LINK_CHNG_SP_EVENT 2
#define BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT 3
#define BNXT_VXLAN_ADD_PORT_SP_EVENT 4
#define BNXT_VXLAN_DEL_PORT_SP_EVENT 5
#define BNXT_RESET_TASK_SP_EVENT 6
#define BNXT_RST_RING_SP_EVENT 7
#define BNXT_HWRM_PF_UNLOAD_SP_EVENT 8
#define BNXT_PERIODIC_STATS_SP_EVENT 9
#define BNXT_HWRM_PORT_MODULE_SP_EVENT 10
#define BNXT_RESET_TASK_SILENT_SP_EVENT 11
#define BNXT_GENEVE_ADD_PORT_SP_EVENT 12
#define BNXT_GENEVE_DEL_PORT_SP_EVENT 13
#define BNXT_LINK_SPEED_CHNG_SP_EVENT 14
#define BNXT_FLOW_STATS_SP_EVENT 15
#define BNXT_UPDATE_PHY_SP_EVENT 16
Expand Down

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