| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Chad Dupuis | 2099 | 98.18% | 7 | 58.33% |
| Yuval Mintz | 28 | 1.31% | 1 | 8.33% |
| Thomas Bogendoerfer | 5 | 0.23% | 1 | 8.33% |
| Tomer Tayar | 3 | 0.14% | 1 | 8.33% |
| Linus Torvalds | 2 | 0.09% | 1 | 8.33% |
| Dan Carpenter | 1 | 0.05% | 1 | 8.33% |
| Total | 2138 | 12 |
/* * QLogic FCoE Offload Driver * Copyright (c) 2016-2018 Cavium Inc. * * This software is available under the terms of the GNU General Public License * (GPL) Version 2, available from the file COPYING in the main directory of * this source tree. */ #ifndef _QEDFC_H_ #define _QEDFC_H_ #include <scsi/libfcoe.h> #include <scsi/libfc.h> #include <scsi/fc/fc_fip.h> #include <scsi/fc/fc_fc2.h> #include <scsi/scsi_tcq.h> #include <scsi/fc_encode.h> #include <linux/version.h> /* qedf_hsi.h needs to before included any qed includes */ #include "qedf_hsi.h" #include <linux/qed/qed_if.h> #include <linux/qed/qed_fcoe_if.h> #include <linux/qed/qed_ll2_if.h> #include "qedf_version.h" #include "qedf_dbg.h" #include "drv_fcoe_fw_funcs.h" /* Helpers to extract upper and lower 32-bits of pointer */ #define U64_HI(val) ((u32)(((u64)(val)) >> 32)) #define U64_LO(val) ((u32)(((u64)(val)) & 0xffffffff)) #define QEDF_DESCR "QLogic FCoE Offload Driver" #define QEDF_MODULE_NAME "qedf" #define QEDF_MIN_XID 0 #define QEDF_MAX_SCSI_XID (NUM_TASKS_PER_CONNECTION - 1) #define QEDF_MAX_ELS_XID 4095 #define QEDF_FLOGI_RETRY_CNT 3 #define QEDF_RPORT_RETRY_CNT 255 #define QEDF_MAX_SESSIONS 1024 #define QEDF_MAX_PAYLOAD 2048 #define QEDF_MAX_BDS_PER_CMD 256 #define QEDF_MAX_BD_LEN 0xffff #define QEDF_BD_SPLIT_SZ 0x1000 #define QEDF_PAGE_SIZE 4096 #define QED_HW_DMA_BOUNDARY 0xfff #define QEDF_MAX_SGLEN_FOR_CACHESGL ((1U << 16) - 1) #define QEDF_MFS (QEDF_MAX_PAYLOAD + \ sizeof(struct fc_frame_header)) #define QEDF_MAX_NPIV 64 #define QEDF_TM_TIMEOUT 10 #define QEDF_ABORT_TIMEOUT 10 #define QEDF_CLEANUP_TIMEOUT 10 #define QEDF_MAX_CDB_LEN 16 #define UPSTREAM_REMOVE 1 #define UPSTREAM_KEEP 1 struct qedf_mp_req { uint32_t req_len; void *req_buf; dma_addr_t req_buf_dma; struct scsi_sge *mp_req_bd; dma_addr_t mp_req_bd_dma; struct fc_frame_header req_fc_hdr; uint32_t resp_len; void *resp_buf; dma_addr_t resp_buf_dma; struct scsi_sge *mp_resp_bd; dma_addr_t mp_resp_bd_dma; struct fc_frame_header resp_fc_hdr; }; struct qedf_els_cb_arg { struct qedf_ioreq *aborted_io_req; struct qedf_ioreq *io_req; u8 op; /* Used to keep track of ELS op */ uint16_t l2_oxid; u32 offset; /* Used for sequence cleanup */ u8 r_ctl; /* Used for sequence cleanup */ }; enum qedf_ioreq_event { QEDF_IOREQ_EV_ABORT_SUCCESS, QEDF_IOREQ_EV_ABORT_FAILED, QEDF_IOREQ_EV_SEND_RRQ, QEDF_IOREQ_EV_ELS_TMO, QEDF_IOREQ_EV_ELS_ERR_DETECT, QEDF_IOREQ_EV_ELS_FLUSH, QEDF_IOREQ_EV_CLEANUP_SUCCESS, QEDF_IOREQ_EV_CLEANUP_FAILED, }; #define FC_GOOD 0 #define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER (0x1<<2) #define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER (0x1<<3) #define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status) #define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID (0x1<<0) #define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID (0x1<<1) struct qedf_ioreq { struct list_head link; uint16_t xid; struct scsi_cmnd *sc_cmd; bool use_slowpath; /* Use slow SGL for this I/O */ #define QEDF_SCSI_CMD 1 #define QEDF_TASK_MGMT_CMD 2 #define QEDF_ABTS 3 #define QEDF_ELS 4 #define QEDF_CLEANUP 5 #define QEDF_SEQ_CLEANUP 6 u8 cmd_type; #define QEDF_CMD_OUTSTANDING 0x0 #define QEDF_CMD_IN_ABORT 0x1 #define QEDF_CMD_IN_CLEANUP 0x2 #define QEDF_CMD_SRR_SENT 0x3 u8 io_req_flags; uint8_t tm_flags; struct qedf_rport *fcport; unsigned long flags; enum qedf_ioreq_event event; size_t data_xfer_len; struct kref refcount; struct qedf_cmd_mgr *cmd_mgr; struct io_bdt *bd_tbl; struct delayed_work timeout_work; struct completion tm_done; struct completion abts_done; struct e4_fcoe_task_context *task; struct fcoe_task_params *task_params; struct scsi_sgl_task_params *sgl_task_params; int idx; /* * Need to allocate enough room for both sense data and FCP response data * which has a max length of 8 bytes according to spec. */ #define QEDF_SCSI_SENSE_BUFFERSIZE (SCSI_SENSE_BUFFERSIZE + 8) uint8_t *sense_buffer; dma_addr_t sense_buffer_dma; u32 fcp_resid; u32 fcp_rsp_len; u32 fcp_sns_len; u8 cdb_status; u8 fcp_status; u8 fcp_rsp_code; u8 scsi_comp_flags; #define QEDF_MAX_REUSE 0xfff u16 reuse_count; struct qedf_mp_req mp_req; void (*cb_func)(struct qedf_els_cb_arg *cb_arg); struct qedf_els_cb_arg *cb_arg; int fp_idx; unsigned int cpu; unsigned int int_cpu; #define QEDF_IOREQ_SLOW_SGE 0 #define QEDF_IOREQ_SINGLE_SGE 1 #define QEDF_IOREQ_FAST_SGE 2 u8 sge_type; struct delayed_work rrq_work; /* Used for sequence level recovery; i.e. REC/SRR */ uint32_t rx_buf_off; uint32_t tx_buf_off; uint32_t rx_id; uint32_t task_retry_identifier; /* * Used to tell if we need to return a SCSI command * during some form of error processing. */ bool return_scsi_cmd_on_abts; }; extern struct workqueue_struct *qedf_io_wq; struct qedf_rport { spinlock_t rport_lock; #define QEDF_RPORT_SESSION_READY 1 #define QEDF_RPORT_UPLOADING_CONNECTION 2 #define QEDF_RPORT_IN_RESET 3 unsigned long flags; unsigned long retry_delay_timestamp; struct fc_rport *rport; struct fc_rport_priv *rdata; struct qedf_ctx *qedf; u32 handle; /* Handle from qed */ u32 fw_cid; /* fw_cid from qed */ void __iomem *p_doorbell; /* Send queue management */ atomic_t free_sqes; atomic_t num_active_ios; struct fcoe_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; u32 sid; #define QEDF_RPORT_TYPE_DISK 0 #define QEDF_RPORT_TYPE_TAPE 1 uint dev_type; /* Disk or tape */ struct list_head peers; }; /* Used to contain LL2 skb's in ll2_skb_list */ struct qedf_skb_work { struct work_struct work; struct sk_buff *skb; struct qedf_ctx *qedf; }; struct qedf_fastpath { #define QEDF_SB_ID_NULL 0xffff u16 sb_id; struct qed_sb_info *sb_info; struct qedf_ctx *qedf; /* Keep track of number of completions on this fastpath */ unsigned long completions; uint32_t cq_num_entries; }; /* Used to pass fastpath information needed to process CQEs */ struct qedf_io_work { struct work_struct work; struct fcoe_cqe cqe; struct qedf_ctx *qedf; struct fc_frame *fp; }; struct qedf_glbl_q_params { u64 hw_p_cq; /* Completion queue PBL */ u64 hw_p_rq; /* Request queue PBL */ u64 hw_p_cmdq; /* Command queue PBL */ }; struct global_queue { struct fcoe_cqe *cq; dma_addr_t cq_dma; u32 cq_mem_size; u32 cq_cons_idx; /* Completion queue consumer index */ u32 cq_prod_idx; void *cq_pbl; dma_addr_t cq_pbl_dma; u32 cq_pbl_size; }; /* I/O tracing entry */ #define QEDF_IO_TRACE_SIZE 2048 struct qedf_io_log { #define QEDF_IO_TRACE_REQ 0 #define QEDF_IO_TRACE_RSP 1 uint8_t direction; uint16_t task_id; uint32_t port_id; /* Remote port fabric ID */ int lun; unsigned char op; /* SCSI CDB */ uint8_t lba[4]; unsigned int bufflen; /* SCSI buffer length */ unsigned int sg_count; /* Number of SG elements */ int result; /* Result passed back to mid-layer */ unsigned long jiffies; /* Time stamp when I/O logged */ int refcount; /* Reference count for task id */ unsigned int req_cpu; /* CPU that the task is queued on */ unsigned int int_cpu; /* Interrupt CPU that the task is received on */ unsigned int rsp_cpu; /* CPU that task is returned on */ u8 sge_type; /* Did we take the slow, single or fast SGE path */ }; /* Number of entries in BDQ */ #define QEDF_BDQ_SIZE 256 #define QEDF_BDQ_BUF_SIZE 2072 /* DMA coherent buffers for BDQ */ struct qedf_bdq_buf { void *buf_addr; dma_addr_t buf_dma; }; /* Main adapter struct */ struct qedf_ctx { struct qedf_dbg_ctx dbg_ctx; struct fcoe_ctlr ctlr; struct fc_lport *lport; u8 data_src_addr[ETH_ALEN]; #define QEDF_LINK_DOWN 0 #define QEDF_LINK_UP 1 atomic_t link_state; #define QEDF_DCBX_PENDING 0 #define QEDF_DCBX_DONE 1 atomic_t dcbx; uint16_t max_scsi_xid; uint16_t max_els_xid; #define QEDF_NULL_VLAN_ID -1 #define QEDF_FALLBACK_VLAN 1002 #define QEDF_DEFAULT_PRIO 3 int vlan_id; u8 prio; struct qed_dev *cdev; struct qed_dev_fcoe_info dev_info; struct qed_int_info int_info; uint16_t last_command; spinlock_t hba_lock; struct pci_dev *pdev; u64 wwnn; u64 wwpn; u8 __aligned(16) mac[ETH_ALEN]; struct list_head fcports; atomic_t num_offloads; unsigned int curr_conn_id; struct workqueue_struct *ll2_recv_wq; struct workqueue_struct *link_update_wq; struct delayed_work link_update; struct delayed_work link_recovery; struct completion flogi_compl; struct completion fipvlan_compl; /* * Used to tell if we're in the window where we are waiting for * the link to come back up before informting fcoe that the link is * done. */ atomic_t link_down_tmo_valid; #define QEDF_TIMER_INTERVAL (1 * HZ) struct timer_list timer; /* One second book keeping timer */ #define QEDF_DRAIN_ACTIVE 1 #define QEDF_LL2_STARTED 2 #define QEDF_UNLOADING 3 #define QEDF_GRCDUMP_CAPTURE 4 #define QEDF_IN_RECOVERY 5 #define QEDF_DBG_STOP_IO 6 unsigned long flags; /* Miscellaneous state flags */ int fipvlan_retries; u8 num_queues; struct global_queue **global_queues; /* Pointer to array of queue structures */ struct qedf_glbl_q_params *p_cpuq; /* Physical address of array of queue structures */ dma_addr_t hw_p_cpuq; struct qedf_bdq_buf bdq[QEDF_BDQ_SIZE]; void *bdq_pbl; dma_addr_t bdq_pbl_dma; size_t bdq_pbl_mem_size; void *bdq_pbl_list; dma_addr_t bdq_pbl_list_dma; u8 bdq_pbl_list_num_entries; void __iomem *bdq_primary_prod; void __iomem *bdq_secondary_prod; uint16_t bdq_prod_idx; /* Structure for holding all the fastpath for this qedf_ctx */ struct qedf_fastpath *fp_array; struct qed_fcoe_tid tasks; struct qedf_cmd_mgr *cmd_mgr; /* Holds the PF parameters we pass to qed to start he FCoE function */ struct qed_pf_params pf_params; /* Used to time middle path ELS and TM commands */ struct workqueue_struct *timer_work_queue; #define QEDF_IO_WORK_MIN 64 mempool_t *io_mempool; struct workqueue_struct *dpc_wq; struct delayed_work grcdump_work; u32 slow_sge_ios; u32 fast_sge_ios; u32 single_sge_ios; uint8_t *grcdump; uint32_t grcdump_size; struct qedf_io_log io_trace_buf[QEDF_IO_TRACE_SIZE]; spinlock_t io_trace_lock; uint16_t io_trace_idx; bool stop_io_on_error; u32 flogi_cnt; u32 flogi_failed; /* Used for fc statistics */ struct mutex stats_mutex; u64 input_requests; u64 output_requests; u64 control_requests; u64 packet_aborts; u64 alloc_failures; u8 lun_resets; u8 target_resets; u8 task_set_fulls; u8 busy; }; struct io_bdt { struct qedf_ioreq *io_req; struct scsi_sge *bd_tbl; dma_addr_t bd_tbl_dma; u16 bd_valid; }; struct qedf_cmd_mgr { struct qedf_ctx *qedf; u16 idx; struct io_bdt **io_bdt_pool; #define FCOE_PARAMS_NUM_TASKS 2048 struct qedf_ioreq cmds[FCOE_PARAMS_NUM_TASKS]; spinlock_t lock; atomic_t free_list_cnt; }; /* Stolen from qed_cxt_api.h and adapted for qed_fcoe_info * Usage: * * void *ptr; * ptr = qedf_get_task_mem(&qedf->tasks, 128); */ static inline void *qedf_get_task_mem(struct qed_fcoe_tid *info, u32 tid) { return (void *)(info->blocks[tid / info->num_tids_per_block] + (tid % info->num_tids_per_block) * info->size); } static inline void qedf_stop_all_io(struct qedf_ctx *qedf) { set_bit(QEDF_DBG_STOP_IO, &qedf->flags); } /* * Externs */ #define QEDF_DEFAULT_LOG_MASK 0x3CFB6 extern const struct qed_fcoe_ops *qed_ops; extern uint qedf_dump_frames; extern uint qedf_io_tracing; extern uint qedf_stop_io_on_error; extern uint qedf_link_down_tmo; #define QEDF_RETRY_DELAY_MAX 20 /* 2 seconds */ extern bool qedf_retry_delay; extern uint qedf_debug; extern struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf); extern void qedf_cmd_mgr_free(struct qedf_cmd_mgr *cmgr); extern int qedf_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd); extern void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb); extern u8 *qedf_get_src_mac(struct fc_lport *lport); extern void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb); extern void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf); extern void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); extern void qedf_process_warning_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); extern void qedf_process_error_detect(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); extern void qedf_flush_active_ios(struct qedf_rport *fcport, int lun); extern void qedf_release_cmd(struct kref *ref); extern int qedf_initiate_abts(struct qedf_ioreq *io_req, bool return_scsi_cmd_on_abts); extern void qedf_process_abts_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); extern struct qedf_ioreq *qedf_alloc_cmd(struct qedf_rport *fcport, u8 cmd_type); extern struct device_attribute *qedf_host_attrs[]; extern void qedf_cmd_timer_set(struct qedf_ctx *qedf, struct qedf_ioreq *io_req, unsigned int timer_msec); extern int qedf_init_mp_req(struct qedf_ioreq *io_req); extern void qedf_init_mp_task(struct qedf_ioreq *io_req, struct e4_fcoe_task_context *task_ctx, struct fcoe_wqe *sqe); extern u16 qedf_get_sqe_idx(struct qedf_rport *fcport); extern void qedf_ring_doorbell(struct qedf_rport *fcport); extern void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *els_req); extern int qedf_send_rrq(struct qedf_ioreq *aborted_io_req); extern int qedf_send_adisc(struct qedf_rport *fcport, struct fc_frame *fp); extern int qedf_initiate_cleanup(struct qedf_ioreq *io_req, bool return_scsi_cmd_on_abts); extern void qedf_process_cleanup_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); extern int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags); extern void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); extern void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe); extern void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req, int result); extern void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id); extern void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf); extern void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf); extern void qedf_capture_grc_dump(struct qedf_ctx *qedf); extern void qedf_wait_for_upload(struct qedf_ctx *qedf); extern void qedf_process_unsol_compl(struct qedf_ctx *qedf, uint16_t que_idx, struct fcoe_cqe *cqe); extern void qedf_restart_rport(struct qedf_rport *fcport); extern int qedf_send_rec(struct qedf_ioreq *orig_io_req); extern int qedf_post_io_req(struct qedf_rport *fcport, struct qedf_ioreq *io_req); extern void qedf_process_seq_cleanup_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); extern int qedf_send_flogi(struct qedf_ctx *qedf); extern void qedf_get_protocol_tlv_data(void *dev, void *data); extern void qedf_fp_io_handler(struct work_struct *work); extern void qedf_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data); extern void qedf_wq_grcdump(struct work_struct *work); #define FCOE_WORD_TO_BYTE 4 #define QEDF_MAX_TASK_NUM 0xFFFF struct fip_vlan { struct ethhdr eth; struct fip_header fip; struct { struct fip_mac_desc mac; struct fip_wwn_desc wwnn; } desc; }; /* SQ/CQ Sizes */ #define GBL_RSVD_TASKS 16 #define NUM_TASKS_PER_CONNECTION 1024 #define NUM_RW_TASKS_PER_CONNECTION 512 #define FCOE_PARAMS_CQ_NUM_ENTRIES FCOE_PARAMS_NUM_TASKS #define FCOE_PARAMS_CMDQ_NUM_ENTRIES FCOE_PARAMS_NUM_TASKS #define SQ_NUM_ENTRIES NUM_TASKS_PER_CONNECTION #define QEDF_FCOE_PARAMS_GL_RQ_PI 0 #define QEDF_FCOE_PARAMS_GL_CMD_PI 1 #define QEDF_READ (1 << 1) #define QEDF_WRITE (1 << 0) #define MAX_FIBRE_LUNS 0xffffffff #define MIN_NUM_CPUS_MSIX(x) min_t(u32, x->dev_info.num_cqs, \ num_online_cpus()) /* * PCI function probe defines */ /* Probe/remove called during normal PCI probe */ #define QEDF_MODE_NORMAL 0 /* Probe/remove called from qed error recovery */ #define QEDF_MODE_RECOVERY 1 #define SUPPORTED_25000baseKR_Full (1<<27) #define SUPPORTED_50000baseKR2_Full (1<<28) #define SUPPORTED_100000baseKR4_Full (1<<29) #define SUPPORTED_100000baseCR4_Full (1<<30) #endif
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