/* 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
Messung V0.5 in Prozent C=96 H=94 G=94
¤ Dauer der Verarbeitung: 0.3 Sekunden
¤
*© Formatika GbR, Deutschland