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linux/drivers/net/ethernet/netronome/nfp/nfp_port.h
Jakub Kicinski d692403e5c nfp: forbid disabling hw-tc-offload on representors while offload active 
All netdevs which can accept TC offloads must implement
.ndo_set_features().  nfp_reprs currently do not do that, which
means hw-tc-offload can be turned on and off even when offloads
are active.

Whether the offloads are active is really a question to nfp_ports,
so remove the per-app tc_busy callback indirection thing, and
simply count the number of offloaded items in nfp_port structure.

Fixes: 8a2768732a ("nfp: provide infrastructure for offloading flower based TC filters")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Tested-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08 10:01:27 -05:00

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/*
* Copyright (C) 2017 Netronome Systems, Inc.
*
* This software is dual licensed under the GNU General License Version 2,
* June 1991 as shown in the file COPYING in the top-level directory of this
* source tree or the BSD 2-Clause License provided below. You have the
* option to license this software under the complete terms of either license.
*
* The BSD 2-Clause License:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _NFP_PORT_H_
#define _NFP_PORT_H_
#include <net/devlink.h>
struct net_device;
struct nfp_app;
struct nfp_pf;
struct nfp_port;
/**
* enum nfp_port_type - type of port NFP can switch traffic to
* @NFP_PORT_INVALID: port is invalid, %NFP_PORT_PHYS_PORT transitions to this
* state when port disappears because of FW fault or config
* change
* @NFP_PORT_PHYS_PORT: external NIC port
* @NFP_PORT_PF_PORT: logical port of PCI PF
* @NFP_PORT_VF_PORT: logical port of PCI VF
*/
enum nfp_port_type {
NFP_PORT_INVALID,
NFP_PORT_PHYS_PORT,
NFP_PORT_PF_PORT,
NFP_PORT_VF_PORT,
};
/**
* enum nfp_port_flags - port flags (can be type-specific)
* @NFP_PORT_CHANGED: port state has changed since last eth table refresh;
* for NFP_PORT_PHYS_PORT, never set otherwise; must hold
* rtnl_lock to clear
*/
enum nfp_port_flags {
NFP_PORT_CHANGED = 0,
};
/**
* struct nfp_port - structure representing NFP port
* @netdev: backpointer to associated netdev
* @type: what port type does the entity represent
* @flags: port flags
* @tc_offload_cnt: number of active TC offloads, how offloads are counted
* is not defined, use as a boolean
* @app: backpointer to the app structure
* @dl_port: devlink port structure
* @eth_id: for %NFP_PORT_PHYS_PORT port ID in NFP enumeration scheme
* @eth_port: for %NFP_PORT_PHYS_PORT translated ETH Table port entry
* @eth_stats: for %NFP_PORT_PHYS_PORT MAC stats if available
* @pf_id: for %NFP_PORT_PF_PORT, %NFP_PORT_VF_PORT ID of the PCI PF (0-3)
* @vf_id: for %NFP_PORT_VF_PORT ID of the PCI VF within @pf_id
* @vnic: for %NFP_PORT_PF_PORT, %NFP_PORT_VF_PORT vNIC ctrl memory
* @port_list: entry on pf's list of ports
*/
struct nfp_port {
struct net_device *netdev;
enum nfp_port_type type;
unsigned long flags;
unsigned long tc_offload_cnt;
struct nfp_app *app;
struct devlink_port dl_port;
union {
/* NFP_PORT_PHYS_PORT */
struct {
unsigned int eth_id;
struct nfp_eth_table_port *eth_port;
u8 __iomem *eth_stats;
};
/* NFP_PORT_PF_PORT, NFP_PORT_VF_PORT */
struct {
unsigned int pf_id;
unsigned int vf_id;
u8 __iomem *vnic;
};
};
struct list_head port_list;
};
extern const struct ethtool_ops nfp_port_ethtool_ops;
extern const struct switchdev_ops nfp_port_switchdev_ops;
int nfp_port_setup_tc(struct net_device *netdev, enum tc_setup_type type,
void *type_data);
static inline bool nfp_port_is_vnic(const struct nfp_port *port)
{
return port->type == NFP_PORT_PF_PORT || port->type == NFP_PORT_VF_PORT;
}
int
nfp_port_set_features(struct net_device *netdev, netdev_features_t features);
struct nfp_port *nfp_port_from_netdev(struct net_device *netdev);
struct nfp_port *
nfp_port_from_id(struct nfp_pf *pf, enum nfp_port_type type, unsigned int id);
struct nfp_eth_table_port *__nfp_port_get_eth_port(struct nfp_port *port);
struct nfp_eth_table_port *nfp_port_get_eth_port(struct nfp_port *port);
int
nfp_port_get_phys_port_name(struct net_device *netdev, char *name, size_t len);
int nfp_port_configure(struct net_device *netdev, bool configed);
struct nfp_port *
nfp_port_alloc(struct nfp_app *app, enum nfp_port_type type,
struct net_device *netdev);
void nfp_port_free(struct nfp_port *port);
int nfp_port_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
struct nfp_port *port, unsigned int id);
int nfp_net_refresh_eth_port(struct nfp_port *port);
void nfp_net_refresh_port_table(struct nfp_port *port);
int nfp_net_refresh_port_table_sync(struct nfp_pf *pf);
int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port);
void nfp_devlink_port_unregister(struct nfp_port *port);
/**
* Mac stats (0x0000 - 0x0200)
* all counters are 64bit.
*/
#define NFP_MAC_STATS_BASE 0x0000
#define NFP_MAC_STATS_SIZE 0x0200
#define NFP_MAC_STATS_RX_IN_OCTETS (NFP_MAC_STATS_BASE + 0x000)
/* unused 0x008 */
#define NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS (NFP_MAC_STATS_BASE + 0x010)
#define NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS (NFP_MAC_STATS_BASE + 0x018)
#define NFP_MAC_STATS_RX_VLAN_RECEIVED_OK (NFP_MAC_STATS_BASE + 0x020)
#define NFP_MAC_STATS_RX_IN_ERRORS (NFP_MAC_STATS_BASE + 0x028)
#define NFP_MAC_STATS_RX_IN_BROADCAST_PKTS (NFP_MAC_STATS_BASE + 0x030)
#define NFP_MAC_STATS_RX_DROP_EVENTS (NFP_MAC_STATS_BASE + 0x038)
#define NFP_MAC_STATS_RX_ALIGNMENT_ERRORS (NFP_MAC_STATS_BASE + 0x040)
#define NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES (NFP_MAC_STATS_BASE + 0x048)
#define NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK (NFP_MAC_STATS_BASE + 0x050)
#define NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS (NFP_MAC_STATS_BASE + 0x058)
#define NFP_MAC_STATS_RX_UNICAST_PKTS (NFP_MAC_STATS_BASE + 0x060)
#define NFP_MAC_STATS_RX_MULTICAST_PKTS (NFP_MAC_STATS_BASE + 0x068)
#define NFP_MAC_STATS_RX_PKTS (NFP_MAC_STATS_BASE + 0x070)
#define NFP_MAC_STATS_RX_UNDERSIZE_PKTS (NFP_MAC_STATS_BASE + 0x078)
#define NFP_MAC_STATS_RX_PKTS_64_OCTETS (NFP_MAC_STATS_BASE + 0x080)
#define NFP_MAC_STATS_RX_PKTS_65_TO_127_OCTETS (NFP_MAC_STATS_BASE + 0x088)
#define NFP_MAC_STATS_RX_PKTS_512_TO_1023_OCTETS (NFP_MAC_STATS_BASE + 0x090)
#define NFP_MAC_STATS_RX_PKTS_1024_TO_1518_OCTETS (NFP_MAC_STATS_BASE + 0x098)
#define NFP_MAC_STATS_RX_JABBERS (NFP_MAC_STATS_BASE + 0x0a0)
#define NFP_MAC_STATS_RX_FRAGMENTS (NFP_MAC_STATS_BASE + 0x0a8)
#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2 (NFP_MAC_STATS_BASE + 0x0b0)
#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3 (NFP_MAC_STATS_BASE + 0x0b8)
#define NFP_MAC_STATS_RX_PKTS_128_TO_255_OCTETS (NFP_MAC_STATS_BASE + 0x0c0)
#define NFP_MAC_STATS_RX_PKTS_256_TO_511_OCTETS (NFP_MAC_STATS_BASE + 0x0c8)
#define NFP_MAC_STATS_RX_PKTS_1519_TO_MAX_OCTETS (NFP_MAC_STATS_BASE + 0x0d0)
#define NFP_MAC_STATS_RX_OVERSIZE_PKTS (NFP_MAC_STATS_BASE + 0x0d8)
#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0 (NFP_MAC_STATS_BASE + 0x0e0)
#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1 (NFP_MAC_STATS_BASE + 0x0e8)
#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4 (NFP_MAC_STATS_BASE + 0x0f0)
#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5 (NFP_MAC_STATS_BASE + 0x0f8)
#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6 (NFP_MAC_STATS_BASE + 0x100)
#define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7 (NFP_MAC_STATS_BASE + 0x108)
#define NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED (NFP_MAC_STATS_BASE + 0x110)
#define NFP_MAC_STATS_RX_MAC_HEAD_DROP (NFP_MAC_STATS_BASE + 0x118)
/* unused 0x120 */
/* unused 0x128 */
/* unused 0x130 */
#define NFP_MAC_STATS_TX_QUEUE_DROP (NFP_MAC_STATS_BASE + 0x138)
#define NFP_MAC_STATS_TX_OUT_OCTETS (NFP_MAC_STATS_BASE + 0x140)
/* unused 0x148 */
#define NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK (NFP_MAC_STATS_BASE + 0x150)
#define NFP_MAC_STATS_TX_OUT_ERRORS (NFP_MAC_STATS_BASE + 0x158)
#define NFP_MAC_STATS_TX_BROADCAST_PKTS (NFP_MAC_STATS_BASE + 0x160)
#define NFP_MAC_STATS_TX_PKTS_64_OCTETS (NFP_MAC_STATS_BASE + 0x168)
#define NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS (NFP_MAC_STATS_BASE + 0x170)
#define NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS (NFP_MAC_STATS_BASE + 0x178)
#define NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES (NFP_MAC_STATS_BASE + 0x180)
#define NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK (NFP_MAC_STATS_BASE + 0x188)
#define NFP_MAC_STATS_TX_UNICAST_PKTS (NFP_MAC_STATS_BASE + 0x190)
#define NFP_MAC_STATS_TX_MULTICAST_PKTS (NFP_MAC_STATS_BASE + 0x198)
#define NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS (NFP_MAC_STATS_BASE + 0x1a0)
#define NFP_MAC_STATS_TX_PKTS_128_TO_255_OCTETS (NFP_MAC_STATS_BASE + 0x1a8)
#define NFP_MAC_STATS_TX_PKTS_1024_TO_1518_OCTETS (NFP_MAC_STATS_BASE + 0x1b0)
#define NFP_MAC_STATS_TX_PKTS_1519_TO_MAX_OCTETS (NFP_MAC_STATS_BASE + 0x1b8)
#define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS0 (NFP_MAC_STATS_BASE + 0x1c0)
#define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS1 (NFP_MAC_STATS_BASE + 0x1c8)
#define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS4 (NFP_MAC_STATS_BASE + 0x1d0)
#define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS5 (NFP_MAC_STATS_BASE + 0x1d8)
#define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS2 (NFP_MAC_STATS_BASE + 0x1e0)
#define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS3 (NFP_MAC_STATS_BASE + 0x1e8)
#define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS6 (NFP_MAC_STATS_BASE + 0x1f0)
#define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS7 (NFP_MAC_STATS_BASE + 0x1f8)
#endif
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