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