From: Govindarajulu Varadarajan Date: Thu, 9 Feb 2017 00:43:07 +0000 (-0800) Subject: enic: add devcmds for vxlan offload X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ca0291798227a6da0f3ba6c2e3a43d94d5dcf591;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git enic: add devcmds for vxlan offload This patch adds devcmds needed for vxlan offload. Implement 3 new devcmd overlay_offload_ctrl: enable/disable offload overlay_offload_cfg: update offload udp port number get_supported_feature_ver: get hw supported offload version. Each version has different bitmap for csum_ok/encap Signed-off-by: Govindarajulu Varadarajan Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/cisco/enic/vnic_dev.c b/drivers/net/ethernet/cisco/enic/vnic_dev.c index 8f27df3207bc..1841ad45d215 100644 --- a/drivers/net/ethernet/cisco/enic/vnic_dev.c +++ b/drivers/net/ethernet/cisco/enic/vnic_dev.c @@ -1247,3 +1247,37 @@ int vnic_dev_classifier(struct vnic_dev *vdev, u8 cmd, u16 *entry, return ret; } + +int vnic_dev_overlay_offload_ctrl(struct vnic_dev *vdev, u8 overlay, u8 config) +{ + u64 a0 = overlay; + u64 a1 = config; + int wait = 1000; + + return vnic_dev_cmd(vdev, CMD_OVERLAY_OFFLOAD_CTRL, &a0, &a1, wait); +} + +int vnic_dev_overlay_offload_cfg(struct vnic_dev *vdev, u8 overlay, + u16 vxlan_udp_port_number) +{ + u64 a1 = vxlan_udp_port_number; + u64 a0 = overlay; + int wait = 1000; + + return vnic_dev_cmd(vdev, CMD_OVERLAY_OFFLOAD_CFG, &a0, &a1, wait); +} + +int vnic_dev_get_supported_feature_ver(struct vnic_dev *vdev, u8 feature, + u64 *supported_versions) +{ + u64 a0 = feature; + int wait = 1000; + u64 a1 = 0; + int ret; + + ret = vnic_dev_cmd(vdev, CMD_GET_SUPP_FEATURE_VER, &a0, &a1, wait); + if (!ret) + *supported_versions = a0; + + return ret; +} diff --git a/drivers/net/ethernet/cisco/enic/vnic_dev.h b/drivers/net/ethernet/cisco/enic/vnic_dev.h index 54156c484424..9d43d6bb9907 100644 --- a/drivers/net/ethernet/cisco/enic/vnic_dev.h +++ b/drivers/net/ethernet/cisco/enic/vnic_dev.h @@ -179,5 +179,10 @@ int vnic_dev_set_mac_addr(struct vnic_dev *vdev, u8 *mac_addr); int vnic_dev_classifier(struct vnic_dev *vdev, u8 cmd, u16 *entry, struct filter *data); int vnic_devcmd_init(struct vnic_dev *vdev); +int vnic_dev_overlay_offload_ctrl(struct vnic_dev *vdev, u8 overlay, u8 config); +int vnic_dev_overlay_offload_cfg(struct vnic_dev *vdev, u8 overlay, + u16 vxlan_udp_port_number); +int vnic_dev_get_supported_feature_ver(struct vnic_dev *vdev, u8 feature, + u64 *supported_versions); #endif /* _VNIC_DEV_H_ */ diff --git a/drivers/net/ethernet/cisco/enic/vnic_devcmd.h b/drivers/net/ethernet/cisco/enic/vnic_devcmd.h index 2a812880b884..d83880b0d468 100644 --- a/drivers/net/ethernet/cisco/enic/vnic_devcmd.h +++ b/drivers/net/ethernet/cisco/enic/vnic_devcmd.h @@ -406,6 +406,31 @@ enum vnic_devcmd_cmd { * in: (u32) a0=Queue Pair number */ CMD_QP_STATS_CLEAR = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 63), + + /* Use this devcmd for agreeing on the highest common version supported + * by both driver and fw for features who need such a facility. + * in: (u64) a0 = feature (driver requests for the supported versions + * on this feature) + * out: (u64) a0 = bitmap of all supported versions for that feature + */ + CMD_GET_SUPP_FEATURE_VER = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ENET, 69), + + /* Control (Enable/Disable) overlay offloads on the given vnic + * in: (u8) a0 = OVERLAY_FEATURE_NVGRE : NVGRE + * a0 = OVERLAY_FEATURE_VXLAN : VxLAN + * in: (u8) a1 = OVERLAY_OFFLOAD_ENABLE : Enable or + * a1 = OVERLAY_OFFLOAD_DISABLE : Disable or + * a1 = OVERLAY_OFFLOAD_ENABLE_V2 : Enable with version 2 + */ + CMD_OVERLAY_OFFLOAD_CTRL = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 72), + + /* Configuration of overlay offloads feature on a given vNIC + * in: (u8) a0 = DEVCMD_OVERLAY_NVGRE : NVGRE + * a0 = DEVCMD_OVERLAY_VXLAN : VxLAN + * in: (u8) a1 = VXLAN_PORT_UPDATE : VxLAN + * in: (u16) a2 = unsigned short int port information + */ + CMD_OVERLAY_OFFLOAD_CFG = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 73), }; /* CMD_ENABLE2 flags */ @@ -657,4 +682,30 @@ struct devcmd2_result { #define DEVCMD2_RING_SIZE 32 #define DEVCMD2_DESC_SIZE 128 +enum overlay_feature_t { + OVERLAY_FEATURE_NVGRE = 1, + OVERLAY_FEATURE_VXLAN, + OVERLAY_FEATURE_MAX, +}; + +enum overlay_ofld_cmd { + OVERLAY_OFFLOAD_ENABLE, + OVERLAY_OFFLOAD_DISABLE, + OVERLAY_OFFLOAD_ENABLE_P2, + OVERLAY_OFFLOAD_MAX, +}; + +#define OVERLAY_CFG_VXLAN_PORT_UPDATE 0 + +/* Use this enum to get the supported versions for each of these features + * If you need to use the devcmd_get_supported_feature_version(), add + * the new feature into this enum and install function handler in devcmd.c + */ +enum vic_feature_t { + VIC_FEATURE_VXLAN, + VIC_FEATURE_RDMA, + VIC_FEATURE_VXLAN_PATCH, + VIC_FEATURE_MAX, +}; + #endif /* _VNIC_DEVCMD_H_ */ diff --git a/drivers/net/ethernet/cisco/enic/vnic_enet.h b/drivers/net/ethernet/cisco/enic/vnic_enet.h index 75aced2de869..7d6fbb5635a4 100644 --- a/drivers/net/ethernet/cisco/enic/vnic_enet.h +++ b/drivers/net/ethernet/cisco/enic/vnic_enet.h @@ -48,6 +48,7 @@ struct vnic_enet_config { #define VENETF_RSSHASH_IPV6_EX 0x200 /* Hash on IPv6 extended fields */ #define VENETF_RSSHASH_TCPIPV6_EX 0x400 /* Hash on TCP + IPv6 ext. fields */ #define VENETF_LOOP 0x800 /* Loopback enabled */ +#define VENETF_VXLAN 0x10000 /* VxLAN offload */ #define VENET_INTR_TYPE_MIN 0 /* Timer specs min interrupt spacing */ #define VENET_INTR_TYPE_IDLE 1 /* Timer specs idle time before irq */