diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h | 67 |
1 files changed, 64 insertions, 3 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h index 25c36001bffa..cb058050e079 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h @@ -43,9 +43,7 @@ #ifndef _NFP_NET_CTRL_H_ #define _NFP_NET_CTRL_H_ -/* IMPORTANT: This header file is shared with the FW, - * no OS specific constructs, please! - */ +#include <linux/types.h> /** * Configuration BAR size. @@ -236,6 +234,12 @@ #define NFP_NET_CFG_RSS_CAP_HFUNC 0xff000000 /** + * TLV area start + * %NFP_NET_CFG_TLV_BASE: start anchor of the TLV area + */ +#define NFP_NET_CFG_TLV_BASE 0x0058 + +/** * VXLAN/UDP encap configuration * %NFP_NET_CFG_VXLAN_PORT: Base address of table of tunnels' UDP dst ports * %NFP_NET_CFG_VXLAN_SZ: Size of the UDP port table in bytes @@ -429,4 +433,61 @@ #define NFP_NET_CFG_VLAN_FILTER_PROTO (NFP_NET_CFG_VLAN_FILTER + 2) #define NFP_NET_CFG_VLAN_FILTER_SZ 0x0004 +/** + * TLV capabilities + * %NFP_NET_CFG_TLV_TYPE: Offset of type within the TLV + * %NFP_NET_CFG_TLV_TYPE_REQUIRED: Driver must be able to parse the TLV + * %NFP_NET_CFG_TLV_LENGTH: Offset of length within the TLV + * %NFP_NET_CFG_TLV_LENGTH_INC: TLV length increments + * %NFP_NET_CFG_TLV_VALUE: Offset of value with the TLV + * + * List of simple TLV structures, first one starts at %NFP_NET_CFG_TLV_BASE. + * Last structure must be of type %NFP_NET_CFG_TLV_TYPE_END. Presence of TLVs + * is indicated by %NFP_NET_CFG_TLV_BASE being non-zero. TLV structures may + * fill the entire remainder of the BAR or be shorter. FW must make sure TLVs + * don't conflict with other features which allocate space beyond + * %NFP_NET_CFG_TLV_BASE. %NFP_NET_CFG_TLV_TYPE_RESERVED should be used to wrap + * space used by such features. + * Note that the 4 byte TLV header is not counted in %NFP_NET_CFG_TLV_LENGTH. + */ +#define NFP_NET_CFG_TLV_TYPE 0x00 +#define NFP_NET_CFG_TLV_TYPE_REQUIRED 0x8000 +#define NFP_NET_CFG_TLV_LENGTH 0x02 +#define NFP_NET_CFG_TLV_LENGTH_INC 4 +#define NFP_NET_CFG_TLV_VALUE 0x04 + +#define NFP_NET_CFG_TLV_HEADER_REQUIRED 0x80000000 +#define NFP_NET_CFG_TLV_HEADER_TYPE 0x7fff0000 +#define NFP_NET_CFG_TLV_HEADER_LENGTH 0x0000ffff + +/** + * Capability TLV types + * + * %NFP_NET_CFG_TLV_TYPE_UNKNOWN: + * Special TLV type to catch bugs, should never be encountered. Drivers should + * treat encountering this type as error and refuse to probe. + * + * %NFP_NET_CFG_TLV_TYPE_RESERVED: + * Reserved space, may contain legacy fixed-offset fields, or be used for + * padding. The use of this type should be otherwise avoided. + * + * %NFP_NET_CFG_TLV_TYPE_END: + * Empty, end of TLV list. Must be the last TLV. Drivers will stop processing + * further TLVs when encountered. + */ +#define NFP_NET_CFG_TLV_TYPE_UNKNOWN 0 +#define NFP_NET_CFG_TLV_TYPE_RESERVED 1 +#define NFP_NET_CFG_TLV_TYPE_END 2 + +struct device; + +/** + * struct nfp_net_tlv_caps - parsed control BAR TLV capabilities + */ +struct nfp_net_tlv_caps { +}; + +int nfp_net_tlv_caps_parse(struct device *dev, u8 __iomem *ctrl_mem, + struct nfp_net_tlv_caps *caps); + #endif /* _NFP_NET_CTRL_H_ */ |