/* QLogic qed NIC Driver
 * Copyright (c) 2015-2017  QLogic Corporation
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed 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, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - 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 _QED_L2_H
#define _QED_L2_H
#include <linux/types.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/qed/qed_eth_if.h>
#include "qed.h"
#include "qed_hw.h"
#include "qed_sp.h"
struct qed_rss_params {
        u8 update_rss_config;
        u8 rss_enable;
        u8 rss_eng_id;
        u8 update_rss_capabilities;
        u8 update_rss_ind_table;
        u8 update_rss_key;
        u8 rss_caps;
        u8 rss_table_size_log;

        /* Indirection table consist of rx queue handles */
        void *rss_ind_table[QED_RSS_IND_TABLE_SIZE];
        u32 rss_key[QED_RSS_KEY_SIZE];
};

struct qed_sge_tpa_params {
        u8 max_buffers_per_cqe;

        u8 update_tpa_en_flg;
        u8 tpa_ipv4_en_flg;
        u8 tpa_ipv6_en_flg;
        u8 tpa_ipv4_tunn_en_flg;
        u8 tpa_ipv6_tunn_en_flg;

        u8 update_tpa_param_flg;
        u8 tpa_pkt_split_flg;
        u8 tpa_hdr_data_split_flg;
        u8 tpa_gro_consistent_flg;
        u8 tpa_max_aggs_num;
        u16 tpa_max_size;
        u16 tpa_min_size_to_start;
        u16 tpa_min_size_to_cont;
};

enum qed_filter_opcode {
        QED_FILTER_ADD,
        QED_FILTER_REMOVE,
        QED_FILTER_MOVE,
        QED_FILTER_REPLACE,     /* Delete all MACs and add new one instead */
        QED_FILTER_FLUSH,       /* Removes all filters */
};

enum qed_filter_ucast_type {
        QED_FILTER_MAC,
        QED_FILTER_VLAN,
        QED_FILTER_MAC_VLAN,
        QED_FILTER_INNER_MAC,
        QED_FILTER_INNER_VLAN,
        QED_FILTER_INNER_PAIR,
        QED_FILTER_INNER_MAC_VNI_PAIR,
        QED_FILTER_MAC_VNI_PAIR,
        QED_FILTER_VNI,
};

struct qed_filter_ucast {
        enum qed_filter_opcode opcode;
        enum qed_filter_ucast_type type;
        u8 is_rx_filter;
        u8 is_tx_filter;
        u8 vport_to_add_to;
        u8 vport_to_remove_from;
        unsigned char mac[ETH_ALEN];
        u8 assert_on_error;
        u16 vlan;
        u32 vni;
};

struct qed_filter_mcast {
        /* MOVE is not supported for multicast */
        enum qed_filter_opcode opcode;
        u8 vport_to_add_to;
        u8 vport_to_remove_from;
        u8 num_mc_addrs;
#define QED_MAX_MC_ADDRS        64
        unsigned char mac[QED_MAX_MC_ADDRS][ETH_ALEN];
};

/**
 * @brief qed_eth_rx_queue_stop - This ramrod closes an Rx queue
 *
 * @param p_hwfn
 * @param p_rxq                 Handler of queue to close
 * @param eq_completion_only    If True completion will be on
 *                              EQe, if False completion will be
 *                              on EQe if p_hwfn opaque
 *                              different from the RXQ opaque
 *                              otherwise on CQe.
 * @param cqe_completion        If True completion will be
 *                              receive on CQe.
 * @return int
 */
int
qed_eth_rx_queue_stop(struct qed_hwfn *p_hwfn,
                      void *p_rxq,
                      bool eq_completion_only, bool cqe_completion);

/**
 * @brief qed_eth_tx_queue_stop - closes a Tx queue
 *
 * @param p_hwfn
 * @param p_txq - handle to Tx queue needed to be closed
 *
 * @return int
 */
int qed_eth_tx_queue_stop(struct qed_hwfn *p_hwfn, void *p_txq);

enum qed_tpa_mode {
        QED_TPA_MODE_NONE,
        QED_TPA_MODE_UNUSED,
        QED_TPA_MODE_GRO,
        QED_TPA_MODE_MAX
};

struct qed_sp_vport_start_params {
        enum qed_tpa_mode tpa_mode;
        bool remove_inner_vlan;
        bool tx_switching;
        bool handle_ptp_pkts;
        bool only_untagged;
        bool drop_ttl0;
        u8 max_buffers_per_cqe;
        u32 concrete_fid;
        u16 opaque_fid;
        u8 vport_id;
        u16 mtu;
        bool check_mac;
        bool check_ethtype;
};

int qed_sp_eth_vport_start(struct qed_hwfn *p_hwfn,
                           struct qed_sp_vport_start_params *p_params);


struct qed_filter_accept_flags {
        u8      update_rx_mode_config;
        u8      update_tx_mode_config;
        u8      rx_accept_filter;
        u8      tx_accept_filter;
#define QED_ACCEPT_NONE         0x01
#define QED_ACCEPT_UCAST_MATCHED        0x02
#define QED_ACCEPT_UCAST_UNMATCHED      0x04
#define QED_ACCEPT_MCAST_MATCHED        0x08
#define QED_ACCEPT_MCAST_UNMATCHED      0x10
#define QED_ACCEPT_BCAST                0x20
#define QED_ACCEPT_ANY_VNI              0x40
};

struct qed_arfs_config_params {
        bool tcp;
        bool udp;
        bool ipv4;
        bool ipv6;
        enum qed_filter_config_mode mode;
};

struct qed_sp_vport_update_params {
        u16                             opaque_fid;
        u8                              vport_id;
        u8                              update_vport_active_rx_flg;
        u8                              vport_active_rx_flg;
        u8                              update_vport_active_tx_flg;
        u8                              vport_active_tx_flg;
        u8                              update_inner_vlan_removal_flg;
        u8                              inner_vlan_removal_flg;
        u8                              silent_vlan_removal_flg;
        u8                              update_default_vlan_enable_flg;
        u8                              default_vlan_enable_flg;
        u8                              update_default_vlan_flg;
        u16                             default_vlan;
        u8                              update_tx_switching_flg;
        u8                              tx_switching_flg;
        u8                              update_approx_mcast_flg;
        u8                              update_anti_spoofing_en_flg;
        u8                              anti_spoofing_en;
        u8                              update_accept_any_vlan_flg;
        u8                              accept_any_vlan;
        u32                             bins[8];
        struct qed_rss_params           *rss_params;
        struct qed_filter_accept_flags  accept_flags;
        struct qed_sge_tpa_params       *sge_tpa_params;
        u8                              update_ctl_frame_check;
        u8                              mac_chk_en;
        u8                              ethtype_chk_en;
};

int qed_sp_vport_update(struct qed_hwfn *p_hwfn,
                        struct qed_sp_vport_update_params *p_params,
                        enum spq_mode comp_mode,
                        struct qed_spq_comp_cb *p_comp_data);

/**
 * @brief qed_sp_vport_stop -
 *
 * This ramrod closes a VPort after all its RX and TX queues are terminated.
 * An Assert is generated if any queues are left open.
 *
 * @param p_hwfn
 * @param opaque_fid
 * @param vport_id VPort ID
 *
 * @return int
 */
int qed_sp_vport_stop(struct qed_hwfn *p_hwfn, u16 opaque_fid, u8 vport_id);

int qed_sp_eth_filter_ucast(struct qed_hwfn *p_hwfn,
                            u16 opaque_fid,
                            struct qed_filter_ucast *p_filter_cmd,
                            enum spq_mode comp_mode,
                            struct qed_spq_comp_cb *p_comp_data);

/**
 * @brief qed_sp_rx_eth_queues_update -
 *
 * This ramrod updates an RX queue. It is used for setting the active state
 * of the queue and updating the TPA and SGE parameters.
 *
 * @note At the moment - only used by non-linux VFs.
 *
 * @param p_hwfn
 * @param pp_rxq_handlers       An array of queue handlers to be updated.
 * @param num_rxqs              number of queues to update.
 * @param complete_cqe_flg      Post completion to the CQE Ring if set
 * @param complete_event_flg    Post completion to the Event Ring if set
 * @param comp_mode
 * @param p_comp_data
 *
 * @return int
 */

int
qed_sp_eth_rx_queues_update(struct qed_hwfn *p_hwfn,
                            void **pp_rxq_handlers,
                            u8 num_rxqs,
                            u8 complete_cqe_flg,
                            u8 complete_event_flg,
                            enum spq_mode comp_mode,
                            struct qed_spq_comp_cb *p_comp_data);

void qed_get_vport_stats(struct qed_dev *cdev, struct qed_eth_stats *stats);

void qed_reset_vport_stats(struct qed_dev *cdev);

/**
 * *@brief qed_arfs_mode_configure -
 *
 **Enable or disable rfs mode. It must accept atleast one of tcp or udp true
 **and atleast one of ipv4 or ipv6 true to enable rfs mode.
 *
 **@param p_hwfn
 **@param p_ptt
 **@param p_cfg_params - arfs mode configuration parameters.
 *
 */
void qed_arfs_mode_configure(struct qed_hwfn *p_hwfn,
                             struct qed_ptt *p_ptt,
                             struct qed_arfs_config_params *p_cfg_params);

/**
 * @brief - qed_configure_rfs_ntuple_filter
 *
 * This ramrod should be used to add or remove arfs hw filter
 *
 * @params p_hwfn
 * @params p_cb - Used for QED_SPQ_MODE_CB,where client would initialize
 *                it with cookie and callback function address, if not
 *                using this mode then client must pass NULL.
 * @params p_params
 */
int
qed_configure_rfs_ntuple_filter(struct qed_hwfn *p_hwfn,
                                struct qed_spq_comp_cb *p_cb,
                                struct qed_ntuple_filter_params *p_params);

#define MAX_QUEUES_PER_QZONE    (sizeof(unsigned long) * 8)
#define QED_QUEUE_CID_SELF      (0xff)

/* Almost identical to the qed_queue_start_common_params,
 * but here we maintain the SB index in IGU CAM.
 */
struct qed_queue_cid_params {
        u8 vport_id;
        u16 queue_id;
        u8 stats_id;
};

/* Additional parameters required for initialization of the queue_cid
 * and are relevant only for a PF initializing one for its VFs.
 */
struct qed_queue_cid_vf_params {
        /* Should match the VF's relative index */
        u8 vfid;

        /* 0-based queue index. Should reflect the relative qzone the
         * VF thinks is associated with it [in its range].
         */
        u8 vf_qid;

        /* Indicates a VF is legacy, making it differ in several things:
         *  - Producers would be placed in a different place.
         *  - Makes assumptions regarding the CIDs.
         */
        u8 vf_legacy;

        u8 qid_usage_idx;
};

struct qed_queue_cid {
        /* For stats-id, the `rel' is actually absolute as well */
        struct qed_queue_cid_params rel;
        struct qed_queue_cid_params abs;

        /* These have no 'relative' meaning */
        u16 sb_igu_id;
        u8 sb_idx;

        u32 cid;
        u16 opaque_fid;

        bool b_is_rx;

        /* VFs queues are mapped differently, so we need to know the
         * relative queue associated with them [0-based].
         * Notice this is relevant on the *PF* queue-cid of its VF's queues,
         * and not on the VF itself.
         */
        u8 vfid;
        u8 vf_qid;

        /* We need an additional index to differentiate between queues opened
         * for same queue-zone, as VFs would have to communicate the info
         * to the PF [otherwise PF has no way to differentiate].
         */
        u8 qid_usage_idx;

        u8 vf_legacy;
#define QED_QCID_LEGACY_VF_RX_PROD      (BIT(0))
#define QED_QCID_LEGACY_VF_CID          (BIT(1))

        struct qed_hwfn *p_owner;
};

int qed_l2_alloc(struct qed_hwfn *p_hwfn);
void qed_l2_setup(struct qed_hwfn *p_hwfn);
void qed_l2_free(struct qed_hwfn *p_hwfn);

void qed_eth_queue_cid_release(struct qed_hwfn *p_hwfn,
                               struct qed_queue_cid *p_cid);

struct qed_queue_cid *
qed_eth_queue_to_cid(struct qed_hwfn *p_hwfn,
                     u16 opaque_fid,
                     struct qed_queue_start_common_params *p_params,
                     bool b_is_rx,
                     struct qed_queue_cid_vf_params *p_vf_params);

int
qed_sp_eth_vport_start(struct qed_hwfn *p_hwfn,
                       struct qed_sp_vport_start_params *p_params);

/**
 * @brief - Starts an Rx queue, when queue_cid is already prepared
 *
 * @param p_hwfn
 * @param p_cid
 * @param bd_max_bytes
 * @param bd_chain_phys_addr
 * @param cqe_pbl_addr
 * @param cqe_pbl_size
 *
 * @return int
 */
int
qed_eth_rxq_start_ramrod(struct qed_hwfn *p_hwfn,
                         struct qed_queue_cid *p_cid,
                         u16 bd_max_bytes,
                         dma_addr_t bd_chain_phys_addr,
                         dma_addr_t cqe_pbl_addr, u16 cqe_pbl_size);

/**
 * @brief - Starts a Tx queue, where queue_cid is already prepared
 *
 * @param p_hwfn
 * @param p_cid
 * @param pbl_addr
 * @param pbl_size
 * @param p_pq_params - parameters for choosing the PQ for this Tx queue
 *
 * @return int
 */
int
qed_eth_txq_start_ramrod(struct qed_hwfn *p_hwfn,
                         struct qed_queue_cid *p_cid,
                         dma_addr_t pbl_addr, u16 pbl_size, u16 pq_id);

u8 qed_mcast_bin_from_mac(u8 *mac);

int qed_set_rxq_coalesce(struct qed_hwfn *p_hwfn,
                         struct qed_ptt *p_ptt,
                         u16 coalesce, struct qed_queue_cid *p_cid);

int qed_set_txq_coalesce(struct qed_hwfn *p_hwfn,
                         struct qed_ptt *p_ptt,
                         u16 coalesce, struct qed_queue_cid *p_cid);

int qed_get_rxq_coalesce(struct qed_hwfn *p_hwfn,
                         struct qed_ptt *p_ptt,
                         struct qed_queue_cid *p_cid, u16 *p_hw_coal);

int qed_get_txq_coalesce(struct qed_hwfn *p_hwfn,
                         struct qed_ptt *p_ptt,
                         struct qed_queue_cid *p_cid, u16 *p_hw_coal);

#endif