161d8658bSDupuis, Chad /* 261d8658bSDupuis, Chad * QLogic FCoE Offload Driver 35d1c8b5bSChad Dupuis * Copyright (c) 2016-2018 Cavium Inc. 461d8658bSDupuis, Chad * 561d8658bSDupuis, Chad * This software is available under the terms of the GNU General Public License 661d8658bSDupuis, Chad * (GPL) Version 2, available from the file COPYING in the main directory of 761d8658bSDupuis, Chad * this source tree. 861d8658bSDupuis, Chad */ 961d8658bSDupuis, Chad #ifndef _QEDFC_H_ 1061d8658bSDupuis, Chad #define _QEDFC_H_ 1161d8658bSDupuis, Chad 1261d8658bSDupuis, Chad #include <scsi/libfcoe.h> 1361d8658bSDupuis, Chad #include <scsi/libfc.h> 1461d8658bSDupuis, Chad #include <scsi/fc/fc_fip.h> 1561d8658bSDupuis, Chad #include <scsi/fc/fc_fc2.h> 1661d8658bSDupuis, Chad #include <scsi/scsi_tcq.h> 1761d8658bSDupuis, Chad #include <scsi/fc_encode.h> 1861d8658bSDupuis, Chad #include <linux/version.h> 1961d8658bSDupuis, Chad 2061d8658bSDupuis, Chad 2161d8658bSDupuis, Chad /* qedf_hsi.h needs to before included any qed includes */ 2261d8658bSDupuis, Chad #include "qedf_hsi.h" 2361d8658bSDupuis, Chad 2461d8658bSDupuis, Chad #include <linux/qed/qed_if.h> 2561d8658bSDupuis, Chad #include <linux/qed/qed_fcoe_if.h> 2661d8658bSDupuis, Chad #include <linux/qed/qed_ll2_if.h> 2761d8658bSDupuis, Chad #include "qedf_version.h" 2861d8658bSDupuis, Chad #include "qedf_dbg.h" 29be086e7cSMintz, Yuval #include "drv_fcoe_fw_funcs.h" 3061d8658bSDupuis, Chad 3161d8658bSDupuis, Chad /* Helpers to extract upper and lower 32-bits of pointer */ 3261d8658bSDupuis, Chad #define U64_HI(val) ((u32)(((u64)(val)) >> 32)) 3361d8658bSDupuis, Chad #define U64_LO(val) ((u32)(((u64)(val)) & 0xffffffff)) 3461d8658bSDupuis, Chad 3561d8658bSDupuis, Chad #define QEDF_DESCR "QLogic FCoE Offload Driver" 3661d8658bSDupuis, Chad #define QEDF_MODULE_NAME "qedf" 3761d8658bSDupuis, Chad 3861d8658bSDupuis, Chad #define QEDF_FLOGI_RETRY_CNT 3 3961d8658bSDupuis, Chad #define QEDF_RPORT_RETRY_CNT 255 4061d8658bSDupuis, Chad #define QEDF_MAX_SESSIONS 1024 4161d8658bSDupuis, Chad #define QEDF_MAX_PAYLOAD 2048 4261d8658bSDupuis, Chad #define QEDF_MAX_BDS_PER_CMD 256 4361d8658bSDupuis, Chad #define QEDF_MAX_BD_LEN 0xffff 4461d8658bSDupuis, Chad #define QEDF_BD_SPLIT_SZ 0x1000 4561d8658bSDupuis, Chad #define QEDF_PAGE_SIZE 4096 4661d8658bSDupuis, Chad #define QED_HW_DMA_BOUNDARY 0xfff 4761d8658bSDupuis, Chad #define QEDF_MAX_SGLEN_FOR_CACHESGL ((1U << 16) - 1) 4861d8658bSDupuis, Chad #define QEDF_MFS (QEDF_MAX_PAYLOAD + \ 4961d8658bSDupuis, Chad sizeof(struct fc_frame_header)) 5061d8658bSDupuis, Chad #define QEDF_MAX_NPIV 64 5161d8658bSDupuis, Chad #define QEDF_TM_TIMEOUT 10 5269ef2c69SSaurav Kashyap #define QEDF_ABORT_TIMEOUT (10 * 1000) 5369ef2c69SSaurav Kashyap #define QEDF_CLEANUP_TIMEOUT 1 5461d8658bSDupuis, Chad #define QEDF_MAX_CDB_LEN 16 5561d8658bSDupuis, Chad 5661d8658bSDupuis, Chad #define UPSTREAM_REMOVE 1 5761d8658bSDupuis, Chad #define UPSTREAM_KEEP 1 5861d8658bSDupuis, Chad 5961d8658bSDupuis, Chad struct qedf_mp_req { 6061d8658bSDupuis, Chad uint32_t req_len; 6161d8658bSDupuis, Chad void *req_buf; 6261d8658bSDupuis, Chad dma_addr_t req_buf_dma; 63be086e7cSMintz, Yuval struct scsi_sge *mp_req_bd; 6461d8658bSDupuis, Chad dma_addr_t mp_req_bd_dma; 6561d8658bSDupuis, Chad struct fc_frame_header req_fc_hdr; 6661d8658bSDupuis, Chad 6761d8658bSDupuis, Chad uint32_t resp_len; 6861d8658bSDupuis, Chad void *resp_buf; 6961d8658bSDupuis, Chad dma_addr_t resp_buf_dma; 70be086e7cSMintz, Yuval struct scsi_sge *mp_resp_bd; 7161d8658bSDupuis, Chad dma_addr_t mp_resp_bd_dma; 7261d8658bSDupuis, Chad struct fc_frame_header resp_fc_hdr; 7361d8658bSDupuis, Chad }; 7461d8658bSDupuis, Chad 7561d8658bSDupuis, Chad struct qedf_els_cb_arg { 7661d8658bSDupuis, Chad struct qedf_ioreq *aborted_io_req; 7761d8658bSDupuis, Chad struct qedf_ioreq *io_req; 7861d8658bSDupuis, Chad u8 op; /* Used to keep track of ELS op */ 7961d8658bSDupuis, Chad uint16_t l2_oxid; 8061d8658bSDupuis, Chad u32 offset; /* Used for sequence cleanup */ 8161d8658bSDupuis, Chad u8 r_ctl; /* Used for sequence cleanup */ 8261d8658bSDupuis, Chad }; 8361d8658bSDupuis, Chad 8461d8658bSDupuis, Chad enum qedf_ioreq_event { 8569ef2c69SSaurav Kashyap QEDF_IOREQ_EV_NONE, 8661d8658bSDupuis, Chad QEDF_IOREQ_EV_ABORT_SUCCESS, 8761d8658bSDupuis, Chad QEDF_IOREQ_EV_ABORT_FAILED, 8861d8658bSDupuis, Chad QEDF_IOREQ_EV_SEND_RRQ, 8961d8658bSDupuis, Chad QEDF_IOREQ_EV_ELS_TMO, 9061d8658bSDupuis, Chad QEDF_IOREQ_EV_ELS_ERR_DETECT, 9161d8658bSDupuis, Chad QEDF_IOREQ_EV_ELS_FLUSH, 9261d8658bSDupuis, Chad QEDF_IOREQ_EV_CLEANUP_SUCCESS, 9361d8658bSDupuis, Chad QEDF_IOREQ_EV_CLEANUP_FAILED, 9461d8658bSDupuis, Chad }; 9561d8658bSDupuis, Chad 9661d8658bSDupuis, Chad #define FC_GOOD 0 9761d8658bSDupuis, Chad #define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER (0x1<<2) 9861d8658bSDupuis, Chad #define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER (0x1<<3) 9961d8658bSDupuis, Chad #define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status) 10061d8658bSDupuis, Chad #define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID (0x1<<0) 10161d8658bSDupuis, Chad #define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID (0x1<<1) 10261d8658bSDupuis, Chad struct qedf_ioreq { 10361d8658bSDupuis, Chad struct list_head link; 10461d8658bSDupuis, Chad uint16_t xid; 10561d8658bSDupuis, Chad struct scsi_cmnd *sc_cmd; 10661d8658bSDupuis, Chad #define QEDF_SCSI_CMD 1 10761d8658bSDupuis, Chad #define QEDF_TASK_MGMT_CMD 2 10861d8658bSDupuis, Chad #define QEDF_ABTS 3 10961d8658bSDupuis, Chad #define QEDF_ELS 4 11061d8658bSDupuis, Chad #define QEDF_CLEANUP 5 11161d8658bSDupuis, Chad #define QEDF_SEQ_CLEANUP 6 11261d8658bSDupuis, Chad u8 cmd_type; 11361d8658bSDupuis, Chad #define QEDF_CMD_OUTSTANDING 0x0 11461d8658bSDupuis, Chad #define QEDF_CMD_IN_ABORT 0x1 11561d8658bSDupuis, Chad #define QEDF_CMD_IN_CLEANUP 0x2 11661d8658bSDupuis, Chad #define QEDF_CMD_SRR_SENT 0x3 1175d5e5565SShyam Sundar #define QEDF_CMD_DIRTY 0x4 1185d5e5565SShyam Sundar #define QEDF_CMD_ERR_SCSI_DONE 0x5 11961d8658bSDupuis, Chad u8 io_req_flags; 120be086e7cSMintz, Yuval uint8_t tm_flags; 12161d8658bSDupuis, Chad struct qedf_rport *fcport; 122faea5719SShyam Sundar #define QEDF_CMD_ST_INACTIVE 0 123faea5719SShyam Sundar #define QEDFC_CMD_ST_IO_ACTIVE 1 124faea5719SShyam Sundar #define QEDFC_CMD_ST_ABORT_ACTIVE 2 125faea5719SShyam Sundar #define QEDFC_CMD_ST_ABORT_ACTIVE_EH 3 126faea5719SShyam Sundar #define QEDFC_CMD_ST_CLEANUP_ACTIVE 4 127faea5719SShyam Sundar #define QEDFC_CMD_ST_CLEANUP_ACTIVE_EH 5 128faea5719SShyam Sundar #define QEDFC_CMD_ST_RRQ_ACTIVE 6 129faea5719SShyam Sundar #define QEDFC_CMD_ST_RRQ_WAIT 7 130faea5719SShyam Sundar #define QEDFC_CMD_ST_OXID_RETIRE_WAIT 8 131faea5719SShyam Sundar #define QEDFC_CMD_ST_TMF_ACTIVE 9 132faea5719SShyam Sundar #define QEDFC_CMD_ST_DRAIN_ACTIVE 10 133faea5719SShyam Sundar #define QEDFC_CMD_ST_CLEANED 11 134faea5719SShyam Sundar #define QEDFC_CMD_ST_ELS_ACTIVE 12 135faea5719SShyam Sundar atomic_t state; 13661d8658bSDupuis, Chad unsigned long flags; 13761d8658bSDupuis, Chad enum qedf_ioreq_event event; 13861d8658bSDupuis, Chad size_t data_xfer_len; 139faea5719SShyam Sundar /* ID: 001: Alloc cmd (qedf_alloc_cmd) */ 140faea5719SShyam Sundar /* ID: 002: Initiate ABTS (qedf_initiate_abts) */ 141faea5719SShyam Sundar /* ID: 003: For RRQ (qedf_process_abts_compl) */ 14261d8658bSDupuis, Chad struct kref refcount; 14361d8658bSDupuis, Chad struct qedf_cmd_mgr *cmd_mgr; 14461d8658bSDupuis, Chad struct io_bdt *bd_tbl; 14561d8658bSDupuis, Chad struct delayed_work timeout_work; 14661d8658bSDupuis, Chad struct completion tm_done; 14761d8658bSDupuis, Chad struct completion abts_done; 14896b1765aSChad Dupuis struct completion cleanup_done; 14921dd79e8STomer Tayar struct e4_fcoe_task_context *task; 150be086e7cSMintz, Yuval struct fcoe_task_params *task_params; 151be086e7cSMintz, Yuval struct scsi_sgl_task_params *sgl_task_params; 15261d8658bSDupuis, Chad int idx; 1535d5e5565SShyam Sundar int lun; 15461d8658bSDupuis, Chad /* 15561d8658bSDupuis, Chad * Need to allocate enough room for both sense data and FCP response data 15661d8658bSDupuis, Chad * which has a max length of 8 bytes according to spec. 15761d8658bSDupuis, Chad */ 15861d8658bSDupuis, Chad #define QEDF_SCSI_SENSE_BUFFERSIZE (SCSI_SENSE_BUFFERSIZE + 8) 15961d8658bSDupuis, Chad uint8_t *sense_buffer; 16061d8658bSDupuis, Chad dma_addr_t sense_buffer_dma; 16161d8658bSDupuis, Chad u32 fcp_resid; 16261d8658bSDupuis, Chad u32 fcp_rsp_len; 16361d8658bSDupuis, Chad u32 fcp_sns_len; 16461d8658bSDupuis, Chad u8 cdb_status; 16561d8658bSDupuis, Chad u8 fcp_status; 16661d8658bSDupuis, Chad u8 fcp_rsp_code; 16761d8658bSDupuis, Chad u8 scsi_comp_flags; 16861d8658bSDupuis, Chad #define QEDF_MAX_REUSE 0xfff 16961d8658bSDupuis, Chad u16 reuse_count; 17061d8658bSDupuis, Chad struct qedf_mp_req mp_req; 17161d8658bSDupuis, Chad void (*cb_func)(struct qedf_els_cb_arg *cb_arg); 17261d8658bSDupuis, Chad struct qedf_els_cb_arg *cb_arg; 17361d8658bSDupuis, Chad int fp_idx; 17461d8658bSDupuis, Chad unsigned int cpu; 17561d8658bSDupuis, Chad unsigned int int_cpu; 1763e2c11b3SChad Dupuis #define QEDF_IOREQ_UNKNOWN_SGE 1 1773e2c11b3SChad Dupuis #define QEDF_IOREQ_SLOW_SGE 2 1783e2c11b3SChad Dupuis #define QEDF_IOREQ_FAST_SGE 3 17961d8658bSDupuis, Chad u8 sge_type; 18061d8658bSDupuis, Chad struct delayed_work rrq_work; 18161d8658bSDupuis, Chad 18261d8658bSDupuis, Chad /* Used for sequence level recovery; i.e. REC/SRR */ 18361d8658bSDupuis, Chad uint32_t rx_buf_off; 18461d8658bSDupuis, Chad uint32_t tx_buf_off; 18561d8658bSDupuis, Chad uint32_t rx_id; 18661d8658bSDupuis, Chad uint32_t task_retry_identifier; 18761d8658bSDupuis, Chad 18861d8658bSDupuis, Chad /* 18961d8658bSDupuis, Chad * Used to tell if we need to return a SCSI command 19061d8658bSDupuis, Chad * during some form of error processing. 19161d8658bSDupuis, Chad */ 19261d8658bSDupuis, Chad bool return_scsi_cmd_on_abts; 1935d5e5565SShyam Sundar 1945d5e5565SShyam Sundar unsigned int alloc; 19561d8658bSDupuis, Chad }; 19661d8658bSDupuis, Chad 19761d8658bSDupuis, Chad extern struct workqueue_struct *qedf_io_wq; 19861d8658bSDupuis, Chad 19961d8658bSDupuis, Chad struct qedf_rport { 20061d8658bSDupuis, Chad spinlock_t rport_lock; 20161d8658bSDupuis, Chad #define QEDF_RPORT_SESSION_READY 1 20261d8658bSDupuis, Chad #define QEDF_RPORT_UPLOADING_CONNECTION 2 20344c7c859SChad Dupuis #define QEDF_RPORT_IN_RESET 3 20469ef2c69SSaurav Kashyap #define QEDF_RPORT_IN_LUN_RESET 4 20569ef2c69SSaurav Kashyap #define QEDF_RPORT_IN_TARGET_RESET 5 20661d8658bSDupuis, Chad unsigned long flags; 20769ef2c69SSaurav Kashyap int lun_reset_lun; 20861d8658bSDupuis, Chad unsigned long retry_delay_timestamp; 20961d8658bSDupuis, Chad struct fc_rport *rport; 21061d8658bSDupuis, Chad struct fc_rport_priv *rdata; 21161d8658bSDupuis, Chad struct qedf_ctx *qedf; 21261d8658bSDupuis, Chad u32 handle; /* Handle from qed */ 21361d8658bSDupuis, Chad u32 fw_cid; /* fw_cid from qed */ 21461d8658bSDupuis, Chad void __iomem *p_doorbell; 21561d8658bSDupuis, Chad /* Send queue management */ 21661d8658bSDupuis, Chad atomic_t free_sqes; 2175d5e5565SShyam Sundar atomic_t ios_to_queue; 21861d8658bSDupuis, Chad atomic_t num_active_ios; 21961d8658bSDupuis, Chad struct fcoe_wqe *sq; 22061d8658bSDupuis, Chad dma_addr_t sq_dma; 22161d8658bSDupuis, Chad u16 sq_prod_idx; 22261d8658bSDupuis, Chad u16 fw_sq_prod_idx; 22361d8658bSDupuis, Chad u16 sq_con_idx; 22461d8658bSDupuis, Chad u32 sq_mem_size; 22561d8658bSDupuis, Chad void *sq_pbl; 22661d8658bSDupuis, Chad dma_addr_t sq_pbl_dma; 22761d8658bSDupuis, Chad u32 sq_pbl_size; 22861d8658bSDupuis, Chad u32 sid; 229be086e7cSMintz, Yuval #define QEDF_RPORT_TYPE_DISK 0 230be086e7cSMintz, Yuval #define QEDF_RPORT_TYPE_TAPE 1 23161d8658bSDupuis, Chad uint dev_type; /* Disk or tape */ 23261d8658bSDupuis, Chad struct list_head peers; 23361d8658bSDupuis, Chad }; 23461d8658bSDupuis, Chad 23561d8658bSDupuis, Chad /* Used to contain LL2 skb's in ll2_skb_list */ 23661d8658bSDupuis, Chad struct qedf_skb_work { 23761d8658bSDupuis, Chad struct work_struct work; 23861d8658bSDupuis, Chad struct sk_buff *skb; 23961d8658bSDupuis, Chad struct qedf_ctx *qedf; 24061d8658bSDupuis, Chad }; 24161d8658bSDupuis, Chad 24261d8658bSDupuis, Chad struct qedf_fastpath { 24361d8658bSDupuis, Chad #define QEDF_SB_ID_NULL 0xffff 24461d8658bSDupuis, Chad u16 sb_id; 24561d8658bSDupuis, Chad struct qed_sb_info *sb_info; 24661d8658bSDupuis, Chad struct qedf_ctx *qedf; 24761d8658bSDupuis, Chad /* Keep track of number of completions on this fastpath */ 24861d8658bSDupuis, Chad unsigned long completions; 24961d8658bSDupuis, Chad uint32_t cq_num_entries; 25061d8658bSDupuis, Chad }; 25161d8658bSDupuis, Chad 25261d8658bSDupuis, Chad /* Used to pass fastpath information needed to process CQEs */ 25361d8658bSDupuis, Chad struct qedf_io_work { 25461d8658bSDupuis, Chad struct work_struct work; 25561d8658bSDupuis, Chad struct fcoe_cqe cqe; 25661d8658bSDupuis, Chad struct qedf_ctx *qedf; 25761d8658bSDupuis, Chad struct fc_frame *fp; 25861d8658bSDupuis, Chad }; 25961d8658bSDupuis, Chad 26061d8658bSDupuis, Chad struct qedf_glbl_q_params { 26161d8658bSDupuis, Chad u64 hw_p_cq; /* Completion queue PBL */ 26261d8658bSDupuis, Chad u64 hw_p_rq; /* Request queue PBL */ 26361d8658bSDupuis, Chad u64 hw_p_cmdq; /* Command queue PBL */ 26461d8658bSDupuis, Chad }; 26561d8658bSDupuis, Chad 26661d8658bSDupuis, Chad struct global_queue { 26761d8658bSDupuis, Chad struct fcoe_cqe *cq; 26861d8658bSDupuis, Chad dma_addr_t cq_dma; 26961d8658bSDupuis, Chad u32 cq_mem_size; 27061d8658bSDupuis, Chad u32 cq_cons_idx; /* Completion queue consumer index */ 27161d8658bSDupuis, Chad u32 cq_prod_idx; 27261d8658bSDupuis, Chad 27361d8658bSDupuis, Chad void *cq_pbl; 27461d8658bSDupuis, Chad dma_addr_t cq_pbl_dma; 27561d8658bSDupuis, Chad u32 cq_pbl_size; 27661d8658bSDupuis, Chad }; 27761d8658bSDupuis, Chad 27861d8658bSDupuis, Chad /* I/O tracing entry */ 27961d8658bSDupuis, Chad #define QEDF_IO_TRACE_SIZE 2048 28061d8658bSDupuis, Chad struct qedf_io_log { 28161d8658bSDupuis, Chad #define QEDF_IO_TRACE_REQ 0 28261d8658bSDupuis, Chad #define QEDF_IO_TRACE_RSP 1 28361d8658bSDupuis, Chad uint8_t direction; 28461d8658bSDupuis, Chad uint16_t task_id; 28561d8658bSDupuis, Chad uint32_t port_id; /* Remote port fabric ID */ 28661d8658bSDupuis, Chad int lun; 2870d2fc3b4SDan Carpenter unsigned char op; /* SCSI CDB */ 28861d8658bSDupuis, Chad uint8_t lba[4]; 28961d8658bSDupuis, Chad unsigned int bufflen; /* SCSI buffer length */ 29061d8658bSDupuis, Chad unsigned int sg_count; /* Number of SG elements */ 29161d8658bSDupuis, Chad int result; /* Result passed back to mid-layer */ 29261d8658bSDupuis, Chad unsigned long jiffies; /* Time stamp when I/O logged */ 29361d8658bSDupuis, Chad int refcount; /* Reference count for task id */ 29461d8658bSDupuis, Chad unsigned int req_cpu; /* CPU that the task is queued on */ 29561d8658bSDupuis, Chad unsigned int int_cpu; /* Interrupt CPU that the task is received on */ 29661d8658bSDupuis, Chad unsigned int rsp_cpu; /* CPU that task is returned on */ 29761d8658bSDupuis, Chad u8 sge_type; /* Did we take the slow, single or fast SGE path */ 29861d8658bSDupuis, Chad }; 29961d8658bSDupuis, Chad 30061d8658bSDupuis, Chad /* Number of entries in BDQ */ 30161d8658bSDupuis, Chad #define QEDF_BDQ_SIZE 256 30261d8658bSDupuis, Chad #define QEDF_BDQ_BUF_SIZE 2072 30361d8658bSDupuis, Chad 30461d8658bSDupuis, Chad /* DMA coherent buffers for BDQ */ 30561d8658bSDupuis, Chad struct qedf_bdq_buf { 30661d8658bSDupuis, Chad void *buf_addr; 30761d8658bSDupuis, Chad dma_addr_t buf_dma; 30861d8658bSDupuis, Chad }; 30961d8658bSDupuis, Chad 31061d8658bSDupuis, Chad /* Main adapter struct */ 31161d8658bSDupuis, Chad struct qedf_ctx { 31261d8658bSDupuis, Chad struct qedf_dbg_ctx dbg_ctx; 31361d8658bSDupuis, Chad struct fcoe_ctlr ctlr; 31461d8658bSDupuis, Chad struct fc_lport *lport; 31561d8658bSDupuis, Chad u8 data_src_addr[ETH_ALEN]; 31661d8658bSDupuis, Chad #define QEDF_LINK_DOWN 0 31761d8658bSDupuis, Chad #define QEDF_LINK_UP 1 31861d8658bSDupuis, Chad atomic_t link_state; 31961d8658bSDupuis, Chad #define QEDF_DCBX_PENDING 0 32061d8658bSDupuis, Chad #define QEDF_DCBX_DONE 1 32161d8658bSDupuis, Chad atomic_t dcbx; 32261d8658bSDupuis, Chad #define QEDF_NULL_VLAN_ID -1 32361d8658bSDupuis, Chad #define QEDF_FALLBACK_VLAN 1002 32461d8658bSDupuis, Chad #define QEDF_DEFAULT_PRIO 3 32561d8658bSDupuis, Chad int vlan_id; 32684b2ba6eSChad Dupuis u8 prio; 32761d8658bSDupuis, Chad struct qed_dev *cdev; 32861d8658bSDupuis, Chad struct qed_dev_fcoe_info dev_info; 32961d8658bSDupuis, Chad struct qed_int_info int_info; 33061d8658bSDupuis, Chad uint16_t last_command; 33161d8658bSDupuis, Chad spinlock_t hba_lock; 33261d8658bSDupuis, Chad struct pci_dev *pdev; 33361d8658bSDupuis, Chad u64 wwnn; 33461d8658bSDupuis, Chad u64 wwpn; 33561d8658bSDupuis, Chad u8 __aligned(16) mac[ETH_ALEN]; 33661d8658bSDupuis, Chad struct list_head fcports; 33761d8658bSDupuis, Chad atomic_t num_offloads; 33861d8658bSDupuis, Chad unsigned int curr_conn_id; 33961d8658bSDupuis, Chad struct workqueue_struct *ll2_recv_wq; 34061d8658bSDupuis, Chad struct workqueue_struct *link_update_wq; 34161d8658bSDupuis, Chad struct delayed_work link_update; 34261d8658bSDupuis, Chad struct delayed_work link_recovery; 34361d8658bSDupuis, Chad struct completion flogi_compl; 34461d8658bSDupuis, Chad struct completion fipvlan_compl; 34561d8658bSDupuis, Chad 34661d8658bSDupuis, Chad /* 34761d8658bSDupuis, Chad * Used to tell if we're in the window where we are waiting for 34861d8658bSDupuis, Chad * the link to come back up before informting fcoe that the link is 34961d8658bSDupuis, Chad * done. 35061d8658bSDupuis, Chad */ 35161d8658bSDupuis, Chad atomic_t link_down_tmo_valid; 35261d8658bSDupuis, Chad #define QEDF_TIMER_INTERVAL (1 * HZ) 35361d8658bSDupuis, Chad struct timer_list timer; /* One second book keeping timer */ 35461d8658bSDupuis, Chad #define QEDF_DRAIN_ACTIVE 1 35561d8658bSDupuis, Chad #define QEDF_LL2_STARTED 2 35661d8658bSDupuis, Chad #define QEDF_UNLOADING 3 35761d8658bSDupuis, Chad #define QEDF_GRCDUMP_CAPTURE 4 35861d8658bSDupuis, Chad #define QEDF_IN_RECOVERY 5 35961d8658bSDupuis, Chad #define QEDF_DBG_STOP_IO 6 36061d8658bSDupuis, Chad unsigned long flags; /* Miscellaneous state flags */ 36161d8658bSDupuis, Chad int fipvlan_retries; 36261d8658bSDupuis, Chad u8 num_queues; 36361d8658bSDupuis, Chad struct global_queue **global_queues; 36461d8658bSDupuis, Chad /* Pointer to array of queue structures */ 36561d8658bSDupuis, Chad struct qedf_glbl_q_params *p_cpuq; 36661d8658bSDupuis, Chad /* Physical address of array of queue structures */ 36761d8658bSDupuis, Chad dma_addr_t hw_p_cpuq; 36861d8658bSDupuis, Chad 36961d8658bSDupuis, Chad struct qedf_bdq_buf bdq[QEDF_BDQ_SIZE]; 37061d8658bSDupuis, Chad void *bdq_pbl; 37161d8658bSDupuis, Chad dma_addr_t bdq_pbl_dma; 37261d8658bSDupuis, Chad size_t bdq_pbl_mem_size; 37361d8658bSDupuis, Chad void *bdq_pbl_list; 37461d8658bSDupuis, Chad dma_addr_t bdq_pbl_list_dma; 37561d8658bSDupuis, Chad u8 bdq_pbl_list_num_entries; 37661d8658bSDupuis, Chad void __iomem *bdq_primary_prod; 37761d8658bSDupuis, Chad void __iomem *bdq_secondary_prod; 37861d8658bSDupuis, Chad uint16_t bdq_prod_idx; 37961d8658bSDupuis, Chad 38061d8658bSDupuis, Chad /* Structure for holding all the fastpath for this qedf_ctx */ 38161d8658bSDupuis, Chad struct qedf_fastpath *fp_array; 38261d8658bSDupuis, Chad struct qed_fcoe_tid tasks; 38361d8658bSDupuis, Chad struct qedf_cmd_mgr *cmd_mgr; 38461d8658bSDupuis, Chad /* Holds the PF parameters we pass to qed to start he FCoE function */ 38561d8658bSDupuis, Chad struct qed_pf_params pf_params; 38661d8658bSDupuis, Chad /* Used to time middle path ELS and TM commands */ 38761d8658bSDupuis, Chad struct workqueue_struct *timer_work_queue; 38861d8658bSDupuis, Chad 38961d8658bSDupuis, Chad #define QEDF_IO_WORK_MIN 64 39061d8658bSDupuis, Chad mempool_t *io_mempool; 39161d8658bSDupuis, Chad struct workqueue_struct *dpc_wq; 3924b9b7fabSChad Dupuis struct delayed_work grcdump_work; 39361d8658bSDupuis, Chad 39461d8658bSDupuis, Chad u32 slow_sge_ios; 39561d8658bSDupuis, Chad u32 fast_sge_ios; 39661d8658bSDupuis, Chad 39761d8658bSDupuis, Chad uint8_t *grcdump; 39861d8658bSDupuis, Chad uint32_t grcdump_size; 39961d8658bSDupuis, Chad 40061d8658bSDupuis, Chad struct qedf_io_log io_trace_buf[QEDF_IO_TRACE_SIZE]; 40161d8658bSDupuis, Chad spinlock_t io_trace_lock; 40261d8658bSDupuis, Chad uint16_t io_trace_idx; 40361d8658bSDupuis, Chad 40461d8658bSDupuis, Chad bool stop_io_on_error; 40561d8658bSDupuis, Chad 40661d8658bSDupuis, Chad u32 flogi_cnt; 40761d8658bSDupuis, Chad u32 flogi_failed; 40861d8658bSDupuis, Chad 40961d8658bSDupuis, Chad /* Used for fc statistics */ 410642a0b37SChad Dupuis struct mutex stats_mutex; 41161d8658bSDupuis, Chad u64 input_requests; 41261d8658bSDupuis, Chad u64 output_requests; 41361d8658bSDupuis, Chad u64 control_requests; 41461d8658bSDupuis, Chad u64 packet_aborts; 41561d8658bSDupuis, Chad u64 alloc_failures; 416642a0b37SChad Dupuis u8 lun_resets; 417642a0b37SChad Dupuis u8 target_resets; 418642a0b37SChad Dupuis u8 task_set_fulls; 419642a0b37SChad Dupuis u8 busy; 42069ef2c69SSaurav Kashyap /* Used for flush routine */ 42169ef2c69SSaurav Kashyap struct mutex flush_mutex; 42261d8658bSDupuis, Chad }; 42361d8658bSDupuis, Chad 42461d8658bSDupuis, Chad struct io_bdt { 42561d8658bSDupuis, Chad struct qedf_ioreq *io_req; 426be086e7cSMintz, Yuval struct scsi_sge *bd_tbl; 42761d8658bSDupuis, Chad dma_addr_t bd_tbl_dma; 42861d8658bSDupuis, Chad u16 bd_valid; 42961d8658bSDupuis, Chad }; 43061d8658bSDupuis, Chad 43161d8658bSDupuis, Chad struct qedf_cmd_mgr { 43261d8658bSDupuis, Chad struct qedf_ctx *qedf; 43361d8658bSDupuis, Chad u16 idx; 43461d8658bSDupuis, Chad struct io_bdt **io_bdt_pool; 435be086e7cSMintz, Yuval #define FCOE_PARAMS_NUM_TASKS 2048 43661d8658bSDupuis, Chad struct qedf_ioreq cmds[FCOE_PARAMS_NUM_TASKS]; 43761d8658bSDupuis, Chad spinlock_t lock; 43861d8658bSDupuis, Chad atomic_t free_list_cnt; 43961d8658bSDupuis, Chad }; 44061d8658bSDupuis, Chad 44161d8658bSDupuis, Chad /* Stolen from qed_cxt_api.h and adapted for qed_fcoe_info 44261d8658bSDupuis, Chad * Usage: 44361d8658bSDupuis, Chad * 44461d8658bSDupuis, Chad * void *ptr; 44561d8658bSDupuis, Chad * ptr = qedf_get_task_mem(&qedf->tasks, 128); 44661d8658bSDupuis, Chad */ 44761d8658bSDupuis, Chad static inline void *qedf_get_task_mem(struct qed_fcoe_tid *info, u32 tid) 44861d8658bSDupuis, Chad { 44961d8658bSDupuis, Chad return (void *)(info->blocks[tid / info->num_tids_per_block] + 45061d8658bSDupuis, Chad (tid % info->num_tids_per_block) * info->size); 45161d8658bSDupuis, Chad } 45261d8658bSDupuis, Chad 45361d8658bSDupuis, Chad static inline void qedf_stop_all_io(struct qedf_ctx *qedf) 45461d8658bSDupuis, Chad { 45561d8658bSDupuis, Chad set_bit(QEDF_DBG_STOP_IO, &qedf->flags); 45661d8658bSDupuis, Chad } 45761d8658bSDupuis, Chad 45861d8658bSDupuis, Chad /* 45961d8658bSDupuis, Chad * Externs 46061d8658bSDupuis, Chad */ 461*8b95b99cSSaurav Kashyap 462*8b95b99cSSaurav Kashyap /* 463*8b95b99cSSaurav Kashyap * (QEDF_LOG_NPIV | QEDF_LOG_SESS | QEDF_LOG_LPORT | QEDF_LOG_ELS | QEDF_LOG_MQ 464*8b95b99cSSaurav Kashyap * | QEDF_LOG_IO | QEDF_LOG_UNSOL | QEDF_LOG_SCSI_TM | QEDF_LOG_MP_REQ | 465*8b95b99cSSaurav Kashyap * QEDF_LOG_EVT | QEDF_LOG_CONN | QEDF_LOG_DISC | QEDF_LOG_INFO) 466*8b95b99cSSaurav Kashyap */ 46761d8658bSDupuis, Chad #define QEDF_DEFAULT_LOG_MASK 0x3CFB6 46861d8658bSDupuis, Chad extern const struct qed_fcoe_ops *qed_ops; 46961d8658bSDupuis, Chad extern uint qedf_dump_frames; 47061d8658bSDupuis, Chad extern uint qedf_io_tracing; 47161d8658bSDupuis, Chad extern uint qedf_stop_io_on_error; 47261d8658bSDupuis, Chad extern uint qedf_link_down_tmo; 47361d8658bSDupuis, Chad #define QEDF_RETRY_DELAY_MAX 20 /* 2 seconds */ 47461d8658bSDupuis, Chad extern bool qedf_retry_delay; 47561d8658bSDupuis, Chad extern uint qedf_debug; 47661d8658bSDupuis, Chad 47761d8658bSDupuis, Chad extern struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf); 47861d8658bSDupuis, Chad extern void qedf_cmd_mgr_free(struct qedf_cmd_mgr *cmgr); 47961d8658bSDupuis, Chad extern int qedf_queuecommand(struct Scsi_Host *host, 48061d8658bSDupuis, Chad struct scsi_cmnd *sc_cmd); 48161d8658bSDupuis, Chad extern void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb); 48261d8658bSDupuis, Chad extern u8 *qedf_get_src_mac(struct fc_lport *lport); 48361d8658bSDupuis, Chad extern void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb); 48461d8658bSDupuis, Chad extern void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf); 48561d8658bSDupuis, Chad extern void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, 48661d8658bSDupuis, Chad struct qedf_ioreq *io_req); 48761d8658bSDupuis, Chad extern void qedf_process_warning_compl(struct qedf_ctx *qedf, 48861d8658bSDupuis, Chad struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); 48961d8658bSDupuis, Chad extern void qedf_process_error_detect(struct qedf_ctx *qedf, 49061d8658bSDupuis, Chad struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); 49161d8658bSDupuis, Chad extern void qedf_flush_active_ios(struct qedf_rport *fcport, int lun); 49261d8658bSDupuis, Chad extern void qedf_release_cmd(struct kref *ref); 49361d8658bSDupuis, Chad extern int qedf_initiate_abts(struct qedf_ioreq *io_req, 49461d8658bSDupuis, Chad bool return_scsi_cmd_on_abts); 49561d8658bSDupuis, Chad extern void qedf_process_abts_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, 49661d8658bSDupuis, Chad struct qedf_ioreq *io_req); 49761d8658bSDupuis, Chad extern struct qedf_ioreq *qedf_alloc_cmd(struct qedf_rport *fcport, 49861d8658bSDupuis, Chad u8 cmd_type); 49961d8658bSDupuis, Chad 50061d8658bSDupuis, Chad extern struct device_attribute *qedf_host_attrs[]; 50161d8658bSDupuis, Chad extern void qedf_cmd_timer_set(struct qedf_ctx *qedf, struct qedf_ioreq *io_req, 50261d8658bSDupuis, Chad unsigned int timer_msec); 50361d8658bSDupuis, Chad extern int qedf_init_mp_req(struct qedf_ioreq *io_req); 50461d8658bSDupuis, Chad extern void qedf_init_mp_task(struct qedf_ioreq *io_req, 50521dd79e8STomer Tayar struct e4_fcoe_task_context *task_ctx, struct fcoe_wqe *sqe); 506be086e7cSMintz, Yuval extern u16 qedf_get_sqe_idx(struct qedf_rport *fcport); 50761d8658bSDupuis, Chad extern void qedf_ring_doorbell(struct qedf_rport *fcport); 50861d8658bSDupuis, Chad extern void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, 50961d8658bSDupuis, Chad struct qedf_ioreq *els_req); 51061d8658bSDupuis, Chad extern int qedf_send_rrq(struct qedf_ioreq *aborted_io_req); 51161d8658bSDupuis, Chad extern int qedf_send_adisc(struct qedf_rport *fcport, struct fc_frame *fp); 51261d8658bSDupuis, Chad extern int qedf_initiate_cleanup(struct qedf_ioreq *io_req, 51361d8658bSDupuis, Chad bool return_scsi_cmd_on_abts); 51461d8658bSDupuis, Chad extern void qedf_process_cleanup_compl(struct qedf_ctx *qedf, 51561d8658bSDupuis, Chad struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); 51661d8658bSDupuis, Chad extern int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags); 51761d8658bSDupuis, Chad extern void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, 51861d8658bSDupuis, Chad struct qedf_ioreq *io_req); 51961d8658bSDupuis, Chad extern void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe); 52061d8658bSDupuis, Chad extern void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req, 52161d8658bSDupuis, Chad int result); 52261d8658bSDupuis, Chad extern void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id); 52361d8658bSDupuis, Chad extern void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf); 52461d8658bSDupuis, Chad extern void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf); 52561d8658bSDupuis, Chad extern void qedf_capture_grc_dump(struct qedf_ctx *qedf); 526a66c6cd2SChad Dupuis bool qedf_wait_for_upload(struct qedf_ctx *qedf); 52761d8658bSDupuis, Chad extern void qedf_process_unsol_compl(struct qedf_ctx *qedf, uint16_t que_idx, 52861d8658bSDupuis, Chad struct fcoe_cqe *cqe); 52961d8658bSDupuis, Chad extern void qedf_restart_rport(struct qedf_rport *fcport); 53061d8658bSDupuis, Chad extern int qedf_send_rec(struct qedf_ioreq *orig_io_req); 53161d8658bSDupuis, Chad extern int qedf_post_io_req(struct qedf_rport *fcport, 53261d8658bSDupuis, Chad struct qedf_ioreq *io_req); 53361d8658bSDupuis, Chad extern void qedf_process_seq_cleanup_compl(struct qedf_ctx *qedf, 53461d8658bSDupuis, Chad struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); 53561d8658bSDupuis, Chad extern int qedf_send_flogi(struct qedf_ctx *qedf); 536642a0b37SChad Dupuis extern void qedf_get_protocol_tlv_data(void *dev, void *data); 53761d8658bSDupuis, Chad extern void qedf_fp_io_handler(struct work_struct *work); 5388673daf4SChad Dupuis extern void qedf_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data); 5394b9b7fabSChad Dupuis extern void qedf_wq_grcdump(struct work_struct *work); 540a66c6cd2SChad Dupuis void qedf_stag_change_work(struct work_struct *work); 541a66c6cd2SChad Dupuis void qedf_ctx_soft_reset(struct fc_lport *lport); 54261d8658bSDupuis, Chad 54361d8658bSDupuis, Chad #define FCOE_WORD_TO_BYTE 4 54461d8658bSDupuis, Chad #define QEDF_MAX_TASK_NUM 0xFFFF 54561d8658bSDupuis, Chad 54661d8658bSDupuis, Chad struct fip_vlan { 54761d8658bSDupuis, Chad struct ethhdr eth; 54861d8658bSDupuis, Chad struct fip_header fip; 54961d8658bSDupuis, Chad struct { 55061d8658bSDupuis, Chad struct fip_mac_desc mac; 55161d8658bSDupuis, Chad struct fip_wwn_desc wwnn; 55261d8658bSDupuis, Chad } desc; 55361d8658bSDupuis, Chad }; 55461d8658bSDupuis, Chad 55561d8658bSDupuis, Chad /* SQ/CQ Sizes */ 55661d8658bSDupuis, Chad #define GBL_RSVD_TASKS 16 55761d8658bSDupuis, Chad #define NUM_TASKS_PER_CONNECTION 1024 55861d8658bSDupuis, Chad #define NUM_RW_TASKS_PER_CONNECTION 512 55961d8658bSDupuis, Chad #define FCOE_PARAMS_CQ_NUM_ENTRIES FCOE_PARAMS_NUM_TASKS 56061d8658bSDupuis, Chad 56161d8658bSDupuis, Chad #define FCOE_PARAMS_CMDQ_NUM_ENTRIES FCOE_PARAMS_NUM_TASKS 56261d8658bSDupuis, Chad #define SQ_NUM_ENTRIES NUM_TASKS_PER_CONNECTION 56361d8658bSDupuis, Chad 56461d8658bSDupuis, Chad #define QEDF_FCOE_PARAMS_GL_RQ_PI 0 56561d8658bSDupuis, Chad #define QEDF_FCOE_PARAMS_GL_CMD_PI 1 56661d8658bSDupuis, Chad 56761d8658bSDupuis, Chad #define QEDF_READ (1 << 1) 56861d8658bSDupuis, Chad #define QEDF_WRITE (1 << 0) 56961d8658bSDupuis, Chad #define MAX_FIBRE_LUNS 0xffffffff 57061d8658bSDupuis, Chad 571722477c4SThomas Bogendoerfer #define MIN_NUM_CPUS_MSIX(x) min_t(u32, x->dev_info.num_cqs, \ 572722477c4SThomas Bogendoerfer num_online_cpus()) 57361d8658bSDupuis, Chad 57461d8658bSDupuis, Chad /* 57561d8658bSDupuis, Chad * PCI function probe defines 57661d8658bSDupuis, Chad */ 57761d8658bSDupuis, Chad /* Probe/remove called during normal PCI probe */ 57861d8658bSDupuis, Chad #define QEDF_MODE_NORMAL 0 57961d8658bSDupuis, Chad /* Probe/remove called from qed error recovery */ 58061d8658bSDupuis, Chad #define QEDF_MODE_RECOVERY 1 58161d8658bSDupuis, Chad 58261d8658bSDupuis, Chad #define SUPPORTED_25000baseKR_Full (1<<27) 58361d8658bSDupuis, Chad #define SUPPORTED_50000baseKR2_Full (1<<28) 58461d8658bSDupuis, Chad #define SUPPORTED_100000baseKR4_Full (1<<29) 58561d8658bSDupuis, Chad #define SUPPORTED_100000baseCR4_Full (1<<30) 58661d8658bSDupuis, Chad 58761d8658bSDupuis, Chad #endif 588