| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Manish Rangankar | 654 | 99.39% | 4 | 57.14% |
| Thomas Gleixner | 2 | 0.30% | 1 | 14.29% |
| Yuval Mintz | 1 | 0.15% | 1 | 14.29% |
| Tomer Tayar | 1 | 0.15% | 1 | 14.29% |
| Total | 658 | 7 |
/* SPDX-License-Identifier: GPL-2.0-only */ /* * QLogic iSCSI Offload Driver * Copyright (c) 2016 Cavium Inc. */ #ifndef _QEDI_ISCSI_H_ #define _QEDI_ISCSI_H_ #include <linux/socket.h> #include <linux/completion.h> #include "qedi.h" #define ISCSI_MAX_SESS_PER_HBA 4096 #define DEF_KA_TIMEOUT 7200000 #define DEF_KA_INTERVAL 10000 #define DEF_KA_MAX_PROBE_COUNT 10 #define DEF_TOS 0 #define DEF_TTL 0xfe #define DEF_SND_SEQ_SCALE 0 #define DEF_RCV_BUF 0xffff #define DEF_SND_BUF 0xffff #define DEF_SEED 0 #define DEF_MAX_RT_TIME 8000 #define DEF_MAX_DA_COUNT 2 #define DEF_SWS_TIMER 1000 #define DEF_MAX_CWND 2 #define DEF_PATH_MTU 1500 #define DEF_MSS 1460 #define DEF_LL2_MTU 1560 #define JUMBO_MTU 9000 #define MIN_MTU 576 /* rfc 793 */ #define IPV4_HDR_LEN 20 #define IPV6_HDR_LEN 40 #define TCP_HDR_LEN 20 #define TCP_OPTION_LEN 12 #define VLAN_LEN 4 enum { EP_STATE_IDLE = 0x0, EP_STATE_ACQRCONN_START = 0x1, EP_STATE_ACQRCONN_COMPL = 0x2, EP_STATE_OFLDCONN_START = 0x4, EP_STATE_OFLDCONN_COMPL = 0x8, EP_STATE_DISCONN_START = 0x10, EP_STATE_DISCONN_COMPL = 0x20, EP_STATE_CLEANUP_START = 0x40, EP_STATE_CLEANUP_CMPL = 0x80, EP_STATE_TCP_FIN_RCVD = 0x100, EP_STATE_TCP_RST_RCVD = 0x200, EP_STATE_LOGOUT_SENT = 0x400, EP_STATE_LOGOUT_RESP_RCVD = 0x800, EP_STATE_CLEANUP_FAILED = 0x1000, EP_STATE_OFLDCONN_FAILED = 0x2000, EP_STATE_CONNECT_FAILED = 0x4000, EP_STATE_DISCONN_TIMEDOUT = 0x8000, EP_STATE_OFLDCONN_NONE = 0x10000, }; struct qedi_conn; struct qedi_endpoint { struct qedi_ctx *qedi; u32 dst_addr[4]; u32 src_addr[4]; u16 src_port; u16 dst_port; u16 vlan_id; u16 pmtu; u8 src_mac[ETH_ALEN]; u8 dst_mac[ETH_ALEN]; u8 ip_type; int state; wait_queue_head_t ofld_wait; wait_queue_head_t tcp_ofld_wait; u32 iscsi_cid; /* identifier of the connection from qed */ u32 handle; u32 fw_cid; void __iomem *p_doorbell; /* Send queue management */ struct iscsi_wqe *sq; dma_addr_t sq_dma; u16 sq_prod_idx; u16 fw_sq_prod_idx; u16 sq_con_idx; u32 sq_mem_size; void *sq_pbl; dma_addr_t sq_pbl_dma; u32 sq_pbl_size; struct qedi_conn *conn; struct work_struct offload_work; }; #define QEDI_SQ_WQES_MIN 16 struct qedi_io_bdt { struct scsi_sge *sge_tbl; dma_addr_t sge_tbl_dma; u16 sge_valid; }; /** * struct generic_pdu_resc - login pdu resource structure * * @req_buf: driver buffer used to stage payload associated with * the login request * @req_dma_addr: dma address for iscsi login request payload buffer * @req_buf_size: actual login request payload length * @req_wr_ptr: pointer into login request buffer when next data is * to be written * @resp_hdr: iscsi header where iscsi login response header is to * be recreated * @resp_buf: buffer to stage login response payload * @resp_dma_addr: login response payload buffer dma address * @resp_buf_size: login response paylod length * @resp_wr_ptr: pointer into login response buffer when next data is * to be written * @req_bd_tbl: iscsi login request payload BD table * @req_bd_dma: login request BD table dma address * @resp_bd_tbl: iscsi login response payload BD table * @resp_bd_dma: login request BD table dma address * * following structure defines buffer info for generic pdus such as iSCSI Login, * Logout and NOP */ struct generic_pdu_resc { char *req_buf; dma_addr_t req_dma_addr; u32 req_buf_size; char *req_wr_ptr; struct iscsi_hdr resp_hdr; char *resp_buf; dma_addr_t resp_dma_addr; u32 resp_buf_size; char *resp_wr_ptr; char *req_bd_tbl; dma_addr_t req_bd_dma; char *resp_bd_tbl; dma_addr_t resp_bd_dma; }; struct qedi_conn { struct iscsi_cls_conn *cls_conn; struct qedi_ctx *qedi; struct qedi_endpoint *ep; struct iscsi_endpoint *iscsi_ep; struct list_head active_cmd_list; spinlock_t list_lock; /* internal conn lock */ u32 active_cmd_count; u32 cmd_cleanup_req; u32 cmd_cleanup_cmpl; u32 iscsi_conn_id; int itt; int abrt_conn; #define QEDI_CID_RESERVED 0x5AFF u32 fw_cid; /* * Buffer for login negotiation process */ struct generic_pdu_resc gen_pdu; struct list_head tmf_work_list; wait_queue_head_t wait_queue; spinlock_t tmf_work_lock; /* tmf work lock */ unsigned long flags; #define QEDI_CONN_FW_CLEANUP 1 }; struct qedi_cmd { struct list_head io_cmd; bool io_cmd_in_list; struct iscsi_hdr hdr; struct qedi_conn *conn; struct scsi_cmnd *scsi_cmd; struct scatterlist *sg; struct qedi_io_bdt io_tbl; struct e4_iscsi_task_context request; unsigned char *sense_buffer; dma_addr_t sense_buffer_dma; u16 task_id; /* field populated for tmf work queue */ struct iscsi_task *task; struct work_struct tmf_work; int state; #define CLEANUP_WAIT 1 #define CLEANUP_RECV 2 #define CLEANUP_WAIT_FAILED 3 #define CLEANUP_NOT_REQUIRED 4 #define LUN_RESET_RESPONSE_RECEIVED 5 #define RESPONSE_RECEIVED 6 int type; #define TYPEIO 1 #define TYPERESET 2 struct qedi_work_map *list_tmf_work; /* slowpath management */ bool use_slowpath; struct iscsi_tm_rsp *tmf_resp_buf; struct qedi_work cqe_work; }; struct qedi_work_map { struct list_head list; struct qedi_cmd *qedi_cmd; int rtid; int state; #define QEDI_WORK_QUEUED 1 #define QEDI_WORK_SCHEDULED 2 #define QEDI_WORK_EXIT 3 struct work_struct *ptr_tmf_work; }; struct qedi_boot_target { char ip_addr[64]; char iscsi_name[255]; u32 ipv6_en; }; #define qedi_set_itt(task_id, itt) ((u32)(((task_id) & 0xffff) | ((itt) << 16))) #define qedi_get_itt(cqe) (cqe.iscsi_hdr.cmd.itt >> 16) #define QEDI_OFLD_WAIT_STATE(q) ((q)->state == EP_STATE_OFLDCONN_FAILED || \ (q)->state == EP_STATE_OFLDCONN_COMPL) #endif /* _QEDI_ISCSI_H_ */
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