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alistair23-linux/include/linux/qed/qed_eth_if.h
Mintz, Yuval 3da7a37ae6 qed*: Handle-based L2-queues. 
The driver needs to maintain several FW/HW-indices for each one of
its queues. Currently, that mapping is done by the QED where it uses
an rx/tx array of so-called hw-cids, populating them whenever a new
queue is opened and clearing them upon destruction of said queues.

This maintenance is far from ideal - there's no real reason why
QED needs to maintain such a data-structure. It becomes even worse
when considering the fact that the PF's queues and its child VFs' queues
are all mapped into the same data-structure.
As a by-product, the set of parameters an interface needs to supply for
queue APIs is non-trivial, and some of the variables in the API
structures have different meaning depending on their exact place
in the configuration flow.

This patch re-organizes the way L2 queues are configured and maintained.
In short:
  - Required parameters for queue init are now well-defined.
  - Qed would allocate a queue-cid based on parameters.
    Upon initialization success, it would return a handle to caller.
  - Queue-handle would be maintained by entity requesting queue-init,
    not necessarily qed.
  - All further queue-APIs [update, destroy] would use the opaque
    handle as reference for the queue instead of various indices.

The possible owners of such handles:
  - PF queues [qede] - complete handles based on provided configuration.
  - VF queues [qede] - fw-context-less handles, containing only relative
    information; Only the PF-side would need the absolute indices
    for configuration, so they're omitted here.
  - VF queues [qed, PF-side] - complete handles based on VF initialization.

Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-30 14:32:04 -05:00

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/* QLogic qed NIC Driver
* Copyright (c) 2015 QLogic Corporation
*
* This software is available under the terms of the GNU General Public License
* (GPL) Version 2, available from the file COPYING in the main directory of
* this source tree.
*/
#ifndef _QED_ETH_IF_H
#define _QED_ETH_IF_H
#include <linux/list.h>
#include <linux/if_link.h>
#include <linux/qed/eth_common.h>
#include <linux/qed/qed_if.h>
#include <linux/qed/qed_iov_if.h>
struct qed_queue_start_common_params {
/* Should always be relative to entity sending this. */
u8 vport_id;
u16 queue_id;
/* Relative, but relevant only for PFs */
u8 stats_id;
/* These are always absolute */
u16 sb;
u8 sb_idx;
};
struct qed_rxq_start_ret_params {
void __iomem *p_prod;
void *p_handle;
};
struct qed_txq_start_ret_params {
void __iomem *p_doorbell;
void *p_handle;
};
struct qed_dev_eth_info {
struct qed_dev_info common;
u8 num_queues;
u8 num_tc;
u8 port_mac[ETH_ALEN];
u16 num_vlan_filters;
u16 num_mac_filters;
/* Legacy VF - this affects the datapath, so qede has to know */
bool is_legacy;
};
struct qed_update_vport_rss_params {
u16 rss_ind_table[128];
u32 rss_key[10];
u8 rss_caps;
};
struct qed_update_vport_params {
u8 vport_id;
u8 update_vport_active_flg;
u8 vport_active_flg;
u8 update_tx_switching_flg;
u8 tx_switching_flg;
u8 update_accept_any_vlan_flg;
u8 accept_any_vlan;
u8 update_rss_flg;
struct qed_update_vport_rss_params rss_params;
};
struct qed_start_vport_params {
bool remove_inner_vlan;
bool gro_enable;
bool drop_ttl0;
u8 vport_id;
u16 mtu;
bool clear_stats;
};
enum qed_filter_rx_mode_type {
QED_FILTER_RX_MODE_TYPE_REGULAR,
QED_FILTER_RX_MODE_TYPE_MULTI_PROMISC,
QED_FILTER_RX_MODE_TYPE_PROMISC,
};
enum qed_filter_xcast_params_type {
QED_FILTER_XCAST_TYPE_ADD,
QED_FILTER_XCAST_TYPE_DEL,
QED_FILTER_XCAST_TYPE_REPLACE,
};
struct qed_filter_ucast_params {
enum qed_filter_xcast_params_type type;
u8 vlan_valid;
u16 vlan;
u8 mac_valid;
unsigned char mac[ETH_ALEN];
};
struct qed_filter_mcast_params {
enum qed_filter_xcast_params_type type;
u8 num;
unsigned char mac[64][ETH_ALEN];
};
union qed_filter_type_params {
enum qed_filter_rx_mode_type accept_flags;
struct qed_filter_ucast_params ucast;
struct qed_filter_mcast_params mcast;
};
enum qed_filter_type {
QED_FILTER_TYPE_UCAST,
QED_FILTER_TYPE_MCAST,
QED_FILTER_TYPE_RX_MODE,
QED_MAX_FILTER_TYPES,
};
struct qed_filter_params {
enum qed_filter_type type;
union qed_filter_type_params filter;
};
struct qed_tunn_params {
u16 vxlan_port;
u8 update_vxlan_port;
u16 geneve_port;
u8 update_geneve_port;
};
struct qed_eth_cb_ops {
struct qed_common_cb_ops common;
void (*force_mac) (void *dev, u8 *mac, bool forced);
};
#ifdef CONFIG_DCB
/* Prototype declaration of qed_eth_dcbnl_ops should match with the declaration
* of dcbnl_rtnl_ops structure.
*/
struct qed_eth_dcbnl_ops {
/* IEEE 802.1Qaz std */
int (*ieee_getpfc)(struct qed_dev *cdev, struct ieee_pfc *pfc);
int (*ieee_setpfc)(struct qed_dev *cdev, struct ieee_pfc *pfc);
int (*ieee_getets)(struct qed_dev *cdev, struct ieee_ets *ets);
int (*ieee_setets)(struct qed_dev *cdev, struct ieee_ets *ets);
int (*ieee_peer_getets)(struct qed_dev *cdev, struct ieee_ets *ets);
int (*ieee_peer_getpfc)(struct qed_dev *cdev, struct ieee_pfc *pfc);
int (*ieee_getapp)(struct qed_dev *cdev, struct dcb_app *app);
int (*ieee_setapp)(struct qed_dev *cdev, struct dcb_app *app);
/* CEE std */
u8 (*getstate)(struct qed_dev *cdev);
u8 (*setstate)(struct qed_dev *cdev, u8 state);
void (*getpgtccfgtx)(struct qed_dev *cdev, int prio, u8 *prio_type,
u8 *pgid, u8 *bw_pct, u8 *up_map);
void (*getpgbwgcfgtx)(struct qed_dev *cdev, int pgid, u8 *bw_pct);
void (*getpgtccfgrx)(struct qed_dev *cdev, int prio, u8 *prio_type,
u8 *pgid, u8 *bw_pct, u8 *up_map);
void (*getpgbwgcfgrx)(struct qed_dev *cdev, int pgid, u8 *bw_pct);
void (*getpfccfg)(struct qed_dev *cdev, int prio, u8 *setting);
void (*setpfccfg)(struct qed_dev *cdev, int prio, u8 setting);
u8 (*getcap)(struct qed_dev *cdev, int capid, u8 *cap);
int (*getnumtcs)(struct qed_dev *cdev, int tcid, u8 *num);
u8 (*getpfcstate)(struct qed_dev *cdev);
int (*getapp)(struct qed_dev *cdev, u8 idtype, u16 id);
u8 (*getfeatcfg)(struct qed_dev *cdev, int featid, u8 *flags);
/* DCBX configuration */
u8 (*getdcbx)(struct qed_dev *cdev);
void (*setpgtccfgtx)(struct qed_dev *cdev, int prio,
u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map);
void (*setpgtccfgrx)(struct qed_dev *cdev, int prio,
u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map);
void (*setpgbwgcfgtx)(struct qed_dev *cdev, int pgid, u8 bw_pct);
void (*setpgbwgcfgrx)(struct qed_dev *cdev, int pgid, u8 bw_pct);
u8 (*setall)(struct qed_dev *cdev);
int (*setnumtcs)(struct qed_dev *cdev, int tcid, u8 num);
void (*setpfcstate)(struct qed_dev *cdev, u8 state);
int (*setapp)(struct qed_dev *cdev, u8 idtype, u16 idval, u8 up);
u8 (*setdcbx)(struct qed_dev *cdev, u8 state);
u8 (*setfeatcfg)(struct qed_dev *cdev, int featid, u8 flags);
/* Peer apps */
int (*peer_getappinfo)(struct qed_dev *cdev,
struct dcb_peer_app_info *info,
u16 *app_count);
int (*peer_getapptable)(struct qed_dev *cdev, struct dcb_app *table);
/* CEE peer */
int (*cee_peer_getpfc)(struct qed_dev *cdev, struct cee_pfc *pfc);
int (*cee_peer_getpg)(struct qed_dev *cdev, struct cee_pg *pg);
};
#endif
struct qed_eth_ops {
const struct qed_common_ops *common;
#ifdef CONFIG_QED_SRIOV
const struct qed_iov_hv_ops *iov;
#endif
#ifdef CONFIG_DCB
const struct qed_eth_dcbnl_ops *dcb;
#endif
int (*fill_dev_info)(struct qed_dev *cdev,
struct qed_dev_eth_info *info);
void (*register_ops)(struct qed_dev *cdev,
struct qed_eth_cb_ops *ops,
void *cookie);
bool(*check_mac) (struct qed_dev *cdev, u8 *mac);
int (*vport_start)(struct qed_dev *cdev,
struct qed_start_vport_params *params);
int (*vport_stop)(struct qed_dev *cdev,
u8 vport_id);
int (*vport_update)(struct qed_dev *cdev,
struct qed_update_vport_params *params);
int (*q_rx_start)(struct qed_dev *cdev,
u8 rss_num,
struct qed_queue_start_common_params *params,
u16 bd_max_bytes,
dma_addr_t bd_chain_phys_addr,
dma_addr_t cqe_pbl_addr,
u16 cqe_pbl_size,
struct qed_rxq_start_ret_params *ret_params);
int (*q_rx_stop)(struct qed_dev *cdev, u8 rss_id, void *handle);
int (*q_tx_start)(struct qed_dev *cdev,
u8 rss_num,
struct qed_queue_start_common_params *params,
dma_addr_t pbl_addr,
u16 pbl_size,
struct qed_txq_start_ret_params *ret_params);
int (*q_tx_stop)(struct qed_dev *cdev, u8 rss_id, void *handle);
int (*filter_config)(struct qed_dev *cdev,
struct qed_filter_params *params);
int (*fastpath_stop)(struct qed_dev *cdev);
int (*eth_cqe_completion)(struct qed_dev *cdev,
u8 rss_id,
struct eth_slow_path_rx_cqe *cqe);
void (*get_vport_stats)(struct qed_dev *cdev,
struct qed_eth_stats *stats);
int (*tunn_config)(struct qed_dev *cdev,
struct qed_tunn_params *params);
};
const struct qed_eth_ops *qed_get_eth_ops(void);
void qed_put_eth_ops(void);
#endif
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