948faa46c0
In preparation for adding a new flower app - targeted at offloading the flower classifier - provide support for control message that it will use to communicate with the NFP. Based in part on work by Bert van Leeuwen. Signed-off-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
/*
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* Copyright (C) 2017 Netronome Systems, Inc.
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*
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* This software is dual licensed under the GNU General License Version 2,
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* June 1991 as shown in the file COPYING in the top-level directory of this
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* source tree or the BSD 2-Clause License provided below. You have the
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* option to license this software under the complete terms of either license.
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*
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* The BSD 2-Clause License:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef NFP_FLOWER_CMSG_H
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#define NFP_FLOWER_CMSG_H
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#include <linux/bitfield.h>
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#include <linux/skbuff.h>
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#include <linux/types.h>
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#include "../nfp_app.h"
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/* The base header for a control message packet.
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* Defines an 8-bit version, and an 8-bit type, padded
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* to a 32-bit word. Rest of the packet is type-specific.
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*/
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struct nfp_flower_cmsg_hdr {
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__be16 pad;
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u8 type;
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u8 version;
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};
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#define NFP_FLOWER_CMSG_HLEN sizeof(struct nfp_flower_cmsg_hdr)
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#define NFP_FLOWER_CMSG_VER1 1
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/* Types defined for port related control messages */
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enum nfp_flower_cmsg_type_port {
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NFP_FLOWER_CMSG_TYPE_PORT_MOD = 8,
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NFP_FLOWER_CMSG_TYPE_PORT_ECHO = 16,
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NFP_FLOWER_CMSG_TYPE_MAX = 32,
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};
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/* NFP_FLOWER_CMSG_TYPE_PORT_MOD */
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struct nfp_flower_cmsg_portmod {
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__be32 portnum;
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u8 reserved;
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u8 info;
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__be16 mtu;
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};
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#define NFP_FLOWER_CMSG_PORTMOD_INFO_LINK BIT(0)
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enum nfp_flower_cmsg_port_type {
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NFP_FLOWER_CMSG_PORT_TYPE_UNSPEC = 0x0,
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NFP_FLOWER_CMSG_PORT_TYPE_PHYS_PORT = 0x1,
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NFP_FLOWER_CMSG_PORT_TYPE_PCIE_PORT = 0x2,
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};
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enum nfp_flower_cmsg_port_vnic_type {
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NFP_FLOWER_CMSG_PORT_VNIC_TYPE_VF = 0x0,
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NFP_FLOWER_CMSG_PORT_VNIC_TYPE_PF = 0x1,
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NFP_FLOWER_CMSG_PORT_VNIC_TYPE_CTRL = 0x2,
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};
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#define NFP_FLOWER_CMSG_PORT_TYPE GENMASK(31, 28)
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#define NFP_FLOWER_CMSG_PORT_SYS_ID GENMASK(27, 24)
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#define NFP_FLOWER_CMSG_PORT_NFP_ID GENMASK(23, 22)
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#define NFP_FLOWER_CMSG_PORT_PCI GENMASK(15, 14)
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#define NFP_FLOWER_CMSG_PORT_VNIC_TYPE GENMASK(13, 12)
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#define NFP_FLOWER_CMSG_PORT_VNIC GENMASK(11, 6)
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#define NFP_FLOWER_CMSG_PORT_PCIE_Q GENMASK(5, 0)
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#define NFP_FLOWER_CMSG_PORT_PHYS_PORT_NUM GENMASK(7, 0)
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static inline u32 nfp_flower_cmsg_phys_port(u8 phys_port)
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{
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return FIELD_PREP(NFP_FLOWER_CMSG_PORT_PHYS_PORT_NUM, phys_port) |
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FIELD_PREP(NFP_FLOWER_CMSG_PORT_TYPE,
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NFP_FLOWER_CMSG_PORT_TYPE_PHYS_PORT);
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}
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static inline u32
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nfp_flower_cmsg_pcie_port(u8 nfp_pcie, enum nfp_flower_cmsg_port_vnic_type type,
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u8 vnic, u8 q)
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{
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return FIELD_PREP(NFP_FLOWER_CMSG_PORT_PCI, nfp_pcie) |
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FIELD_PREP(NFP_FLOWER_CMSG_PORT_VNIC_TYPE, type) |
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FIELD_PREP(NFP_FLOWER_CMSG_PORT_VNIC, vnic) |
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FIELD_PREP(NFP_FLOWER_CMSG_PORT_PCIE_Q, q) |
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FIELD_PREP(NFP_FLOWER_CMSG_PORT_TYPE,
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NFP_FLOWER_CMSG_PORT_TYPE_PCIE_PORT);
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}
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int nfp_flower_cmsg_portmod(struct net_device *netdev, bool carrier_ok);
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void nfp_flower_cmsg_rx(struct nfp_app *app, struct sk_buff *skb);
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#endif
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