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편집 파일: qed_iscsi_if.h

/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ /* QLogic qed NIC Driver * Copyright (c) 2015-2017 QLogic Corporation * Copyright (c) 2019-2020 Marvell International Ltd. */ #ifndef _QED_ISCSI_IF_H #define _QED_ISCSI_IF_H #include <linux/types.h> #include <linux/qed/qed_if.h> typedef int (*iscsi_event_cb_t) (void *context, u8 fw_event_code, void *fw_handle); struct qed_iscsi_stats { u64 iscsi_rx_bytes_cnt; u64 iscsi_rx_packet_cnt; u64 iscsi_rx_new_ooo_isle_events_cnt; u32 iscsi_cmdq_threshold_cnt; u32 iscsi_rq_threshold_cnt; u32 iscsi_immq_threshold_cnt; u64 iscsi_rx_dropped_pdus_task_not_valid; u64 iscsi_rx_data_pdu_cnt; u64 iscsi_rx_r2t_pdu_cnt; u64 iscsi_rx_total_pdu_cnt; u64 iscsi_tx_go_to_slow_start_event_cnt; u64 iscsi_tx_fast_retransmit_event_cnt; u64 iscsi_tx_data_pdu_cnt; u64 iscsi_tx_r2t_pdu_cnt; u64 iscsi_tx_total_pdu_cnt; u64 iscsi_tx_bytes_cnt; u64 iscsi_tx_packet_cnt; }; struct qed_dev_iscsi_info { struct qed_dev_info common; void __iomem *primary_dbq_rq_addr; void __iomem *secondary_bdq_rq_addr; u8 num_cqs; }; struct qed_iscsi_id_params { u8 mac[ETH_ALEN]; u32 ip[4]; u16 port; }; struct qed_iscsi_params_offload { u8 layer_code; dma_addr_t sq_pbl_addr; u32 initial_ack; struct qed_iscsi_id_params src; struct qed_iscsi_id_params dst; u16 vlan_id; u8 tcp_flags; u8 ip_version; u8 default_cq; u8 ka_max_probe_cnt; u8 dup_ack_theshold; u32 rcv_next; u32 snd_una; u32 snd_next; u32 snd_max; u32 snd_wnd; u32 rcv_wnd; u32 snd_wl1; u32 cwnd; u32 ss_thresh; u16 srtt; u16 rtt_var; u32 ts_recent; u32 ts_recent_age; u32 total_rt; u32 ka_timeout_delta; u32 rt_timeout_delta; u8 dup_ack_cnt; u8 snd_wnd_probe_cnt; u8 ka_probe_cnt; u8 rt_cnt; u32 flow_label; u32 ka_timeout; u32 ka_interval; u32 max_rt_time; u32 initial_rcv_wnd; u8 ttl; u8 tos_or_tc; u16 remote_port; u16 local_port; u16 mss; u8 snd_wnd_scale; u8 rcv_wnd_scale; u16 da_timeout_value; u8 ack_frequency; }; struct qed_iscsi_params_update { u8 update_flag; #define QED_ISCSI_CONN_HD_EN BIT(0) #define QED_ISCSI_CONN_DD_EN BIT(1) #define QED_ISCSI_CONN_INITIAL_R2T BIT(2) #define QED_ISCSI_CONN_IMMEDIATE_DATA BIT(3) u32 max_seq_size; u32 max_recv_pdu_length; u32 max_send_pdu_length; u32 first_seq_length; u32 exp_stat_sn; }; #define MAX_TID_BLOCKS_ISCSI (512) struct qed_iscsi_tid { u32 size; /* In bytes per task */ u32 num_tids_per_block; u8 *blocks[MAX_TID_BLOCKS_ISCSI]; }; struct qed_iscsi_cb_ops { struct qed_common_cb_ops common; }; /** * struct qed_iscsi_ops - qed iSCSI operations. * @common: common operations pointer * @ll2: light L2 operations pointer * @fill_dev_info: fills iSCSI specific information * @param cdev * @param info * @return 0 on success, otherwise error value. * @register_ops: register iscsi operations * @param cdev * @param ops - specified using qed_iscsi_cb_ops * @param cookie - driver private * @start: iscsi in FW * @param cdev * @param tasks - qed will fill information about tasks * return 0 on success, otherwise error value. * @stop: iscsi in FW * @param cdev * return 0 on success, otherwise error value. * @acquire_conn: acquire a new iscsi connection * @param cdev * @param handle - qed will fill handle that should be * used henceforth as identifier of the * connection. * @param p_doorbell - qed will fill the address of the * doorbell. * @return 0 on success, otherwise error value. * @release_conn: release a previously acquired iscsi connection * @param cdev * @param handle - the connection handle. * @return 0 on success, otherwise error value. * @offload_conn: configures an offloaded connection * @param cdev * @param handle - the connection handle. * @param conn_info - the configuration to use for the * offload. * @return 0 on success, otherwise error value. * @update_conn: updates an offloaded connection * @param cdev * @param handle - the connection handle. * @param conn_info - the configuration to use for the * offload. * @return 0 on success, otherwise error value. * @destroy_conn: stops an offloaded connection * @param cdev * @param handle - the connection handle. * @return 0 on success, otherwise error value. * @clear_sq: clear all task in sq * @param cdev * @param handle - the connection handle. * @return 0 on success, otherwise error value. * @get_stats: iSCSI related statistics * @param cdev * @param stats - pointer to struck that would be filled * we stats * @return 0 on success, error otherwise. * @change_mac: Change MAC of interface * @param cdev * @param handle - the connection handle. * @param mac - new MAC to configure. * @return 0 on success, otherwise error value. */ struct qed_iscsi_ops { const struct qed_common_ops *common; const struct qed_ll2_ops *ll2; int (*fill_dev_info)(struct qed_dev *cdev, struct qed_dev_iscsi_info *info); void (*register_ops)(struct qed_dev *cdev, struct qed_iscsi_cb_ops *ops, void *cookie); int (*start)(struct qed_dev *cdev, struct qed_iscsi_tid *tasks, void *event_context, iscsi_event_cb_t async_event_cb); int (*stop)(struct qed_dev *cdev); int (*acquire_conn)(struct qed_dev *cdev, u32 *handle, u32 *fw_cid, void __iomem **p_doorbell); int (*release_conn)(struct qed_dev *cdev, u32 handle); int (*offload_conn)(struct qed_dev *cdev, u32 handle, struct qed_iscsi_params_offload *conn_info); int (*update_conn)(struct qed_dev *cdev, u32 handle, struct qed_iscsi_params_update *conn_info); int (*destroy_conn)(struct qed_dev *cdev, u32 handle, u8 abrt_conn); int (*clear_sq)(struct qed_dev *cdev, u32 handle); int (*get_stats)(struct qed_dev *cdev, struct qed_iscsi_stats *stats); int (*change_mac)(struct qed_dev *cdev, u32 handle, const u8 *mac); }; const struct qed_iscsi_ops *qed_get_iscsi_ops(void); void qed_put_iscsi_ops(void); #endif