From 1ad782928f16e7f1b5269ce4358caffe566f44db Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Thu, 23 Jun 2016 13:54:03 -0700 Subject: [PATCH] fm10k: add support for Rx offloads on one Geneve tunnel Similar to how we handle VXLAN offload, enable support for a single Geneve tunnel. Signed-off-by: Jacob Keller Tested-by: Krishneil Singh Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/fm10k/fm10k.h | 1 + .../net/ethernet/intel/fm10k/fm10k_netdev.c | 30 +++++++++++++++++-- drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 3 +- drivers/net/ethernet/intel/fm10k/fm10k_type.h | 1 + 4 files changed, 31 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/fm10k/fm10k.h b/drivers/net/ethernet/intel/fm10k/fm10k.h index 209268a14712..67ff01aeb11a 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k.h +++ b/drivers/net/ethernet/intel/fm10k/fm10k.h @@ -335,6 +335,7 @@ struct fm10k_intfc { /* UDP encapsulation port tracking information */ struct list_head vxlan_port; + struct list_head geneve_port; #ifdef CONFIG_DEBUG_FS struct dentry *dbg_intfc; diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c index 07c5a685f0e9..05629381be6b 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c @@ -387,7 +387,7 @@ static void fm10k_request_glort_range(struct fm10k_intfc *interface) * fm10k_free_udp_port_info * @interface: board private structure * - * This function frees the entire vxlan_port list + * This function frees both geneve_port and vxlan_port structures **/ static void fm10k_free_udp_port_info(struct fm10k_intfc *interface) { @@ -403,6 +403,17 @@ static void fm10k_free_udp_port_info(struct fm10k_intfc *interface) struct fm10k_udp_port, list); } + + /* flush all entries from geneve list */ + port = list_first_entry_or_null(&interface->geneve_port, + struct fm10k_udp_port, list); + while (port) { + list_del(&port->list); + kfree(port); + port = list_first_entry_or_null(&interface->vxlan_port, + struct fm10k_udp_port, + list); + } } /** @@ -427,6 +438,13 @@ static void fm10k_restore_udp_port_info(struct fm10k_intfc *interface) fm10k_write_reg(hw, FM10K_TUNNEL_CFG, (port ? ntohs(port->port) : 0) | (ETH_P_TEB << FM10K_TUNNEL_CFG_NVGRE_SHIFT)); + + port = list_first_entry_or_null(&interface->geneve_port, + struct fm10k_udp_port, list); + + /* restore Geneve tunnel configuration register */ + fm10k_write_reg(hw, FM10K_TUNNEL_CFG_GENEVE, + (port ? ntohs(port->port) : 0)); } static struct fm10k_udp_port * @@ -472,8 +490,8 @@ static void fm10k_insert_tunnel_port(struct list_head *ports, * @ti: Tunnel endpoint information * * This function is called when a new UDP tunnel port has been added. - * Currently we only support VXLAN and only one port will actually be - * offloaded due to hardware restrictions. + * Due to hardware restrictions, only one port per type can be offloaded at + * once. **/ static void fm10k_udp_tunnel_add(struct net_device *dev, struct udp_tunnel_info *ti) @@ -488,6 +506,9 @@ static void fm10k_udp_tunnel_add(struct net_device *dev, case UDP_TUNNEL_TYPE_VXLAN: fm10k_insert_tunnel_port(&interface->vxlan_port, ti); break; + case UDP_TUNNEL_TYPE_GENEVE: + fm10k_insert_tunnel_port(&interface->geneve_port, ti); + break; default: return; } @@ -517,6 +538,9 @@ static void fm10k_udp_tunnel_del(struct net_device *dev, case UDP_TUNNEL_TYPE_VXLAN: port = fm10k_remove_tunnel_port(&interface->vxlan_port, ti); break; + case UDP_TUNNEL_TYPE_GENEVE: + port = fm10k_remove_tunnel_port(&interface->geneve_port, ti); + break; default: return; } diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c index 860fe04f4c72..0a20ca168535 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c @@ -1835,8 +1835,9 @@ static int fm10k_sw_init(struct fm10k_intfc *interface, interface->tx_itr = FM10K_TX_ITR_DEFAULT; interface->rx_itr = FM10K_ITR_ADAPTIVE | FM10K_RX_ITR_DEFAULT; - /* initialize vxlan_port list */ + /* initialize udp port lists */ INIT_LIST_HEAD(&interface->vxlan_port); + INIT_LIST_HEAD(&interface->geneve_port); netdev_rss_key_fill(rss_key, sizeof(rss_key)); memcpy(interface->rssrk, rss_key, sizeof(rss_key)); diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_type.h b/drivers/net/ethernet/intel/fm10k/fm10k_type.h index f4e75c498287..6bb16c13d9d6 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_type.h +++ b/drivers/net/ethernet/intel/fm10k/fm10k_type.h @@ -154,6 +154,7 @@ struct fm10k_hw; #define FM10K_DGLORTDEC_INNERRSS_ENABLE 0x08000000 #define FM10K_TUNNEL_CFG 0x0040 #define FM10K_TUNNEL_CFG_NVGRE_SHIFT 16 +#define FM10K_TUNNEL_CFG_GENEVE 0x0041 #define FM10K_SWPRI_MAP(_n) ((_n) + 0x0050) #define FM10K_SWPRI_MAX 16 #define FM10K_RSSRK(_n, _m) (((_n) * 0x10) + (_m) + 0x0800) -- 2.20.1