| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| James Smart | 865 | 58.25% | 76 | 95.00% |
| James Bottomley | 595 | 40.07% | 2 | 2.50% |
| Gaurav Srivastava | 24 | 1.62% | 1 | 1.25% |
| Arnd Bergmann | 1 | 0.07% | 1 | 1.25% |
| Total | 1485 | 80 |
/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term * * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * * Copyright (C) 2004-2016 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.broadcom.com * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of version 2 of the GNU General * * Public License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful. * * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * * TO BE LEGALLY INVALID. See the GNU General Public License for * * more details, a copy of which can be found in the file COPYING * * included with this package. * *******************************************************************/ #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS) #define CONFIG_SCSI_LPFC_DEBUG_FS #endif /* forward declaration for LPFC_IOCB_t's use */ struct lpfc_hba; struct lpfc_vport; /* Define the context types that SLI handles for abort and sums. */ typedef enum _lpfc_ctx_cmd { LPFC_CTX_LUN, LPFC_CTX_TGT, LPFC_CTX_HOST } lpfc_ctx_cmd; /* Enumeration to describe the thread lock context. */ enum lpfc_mbox_ctx { MBOX_THD_UNLOCKED, MBOX_THD_LOCKED }; union lpfc_vmid_tag { uint32_t app_id; uint8_t cs_ctl_vmid; struct lpfc_vmid_context *vmid_context; /* UVEM context information */ }; struct lpfc_cq_event { struct list_head list; uint16_t hdwq; union { struct lpfc_mcqe mcqe_cmpl; struct lpfc_acqe_link acqe_link; struct lpfc_acqe_fip acqe_fip; struct lpfc_acqe_dcbx acqe_dcbx; struct lpfc_acqe_grp5 acqe_grp5; struct lpfc_acqe_fc_la acqe_fc; struct lpfc_acqe_sli acqe_sli; struct lpfc_rcqe rcqe_cmpl; struct sli4_wcqe_xri_aborted wcqe_axri; struct lpfc_wcqe_complete wcqe_cmpl; } cqe; }; /* This structure is used to handle IOCB requests / responses */ struct lpfc_iocbq { /* lpfc_iocbqs are used in double linked lists */ struct list_head list; struct list_head clist; struct list_head dlist; uint16_t iotag; /* pre-assigned IO tag */ uint16_t sli4_lxritag; /* logical pre-assigned XRI. */ uint16_t sli4_xritag; /* pre-assigned XRI, (OXID) tag. */ uint16_t hba_wqidx; /* index to HBA work queue */ struct lpfc_cq_event cq_event; uint64_t isr_timestamp; union lpfc_wqe128 wqe; /* SLI-4 */ IOCB_t iocb; /* SLI-3 */ struct lpfc_wcqe_complete wcqe_cmpl; /* WQE cmpl */ u32 unsol_rcv_len; /* Receive len in usol path */ /* Pack the u8's together and make them module-4. */ u8 num_bdes; /* Number of BDEs */ u8 abort_bls; /* ABTS by initiator or responder */ u8 abort_rctl; /* ACC or RJT flag */ u8 priority; /* OAS priority */ u8 retry; /* retry counter for IOCB cmd - if needed */ u8 rsvd1; /* Pad for u32 */ u8 rsvd2; /* Pad for u32 */ u8 rsvd3; /* Pad for u32 */ u32 cmd_flag; #define LPFC_IO_LIBDFC 1 /* libdfc iocb */ #define LPFC_IO_WAKE 2 /* Synchronous I/O completed */ #define LPFC_IO_WAKE_TMO LPFC_IO_WAKE /* Synchronous I/O timed out */ #define LPFC_IO_FCP 4 /* FCP command -- iocbq in scsi_buf */ #define LPFC_DRIVER_ABORTED 8 /* driver aborted this request */ #define LPFC_IO_FABRIC 0x10 /* Iocb send using fabric scheduler */ #define LPFC_DELAY_MEM_FREE 0x20 /* Defer free'ing of FC data */ #define LPFC_EXCHANGE_BUSY 0x40 /* SLI4 hba reported XB in response */ #define LPFC_USE_FCPWQIDX 0x80 /* Submit to specified FCPWQ index */ #define DSS_SECURITY_OP 0x100 /* security IO */ #define LPFC_IO_ON_TXCMPLQ 0x200 /* The IO is still on the TXCMPLQ */ #define LPFC_IO_DIF_PASS 0x400 /* T10 DIF IO pass-thru prot */ #define LPFC_IO_DIF_STRIP 0x800 /* T10 DIF IO strip prot */ #define LPFC_IO_DIF_INSERT 0x1000 /* T10 DIF IO insert prot */ #define LPFC_IO_CMD_OUTSTANDING 0x2000 /* timeout handler abort window */ #define LPFC_FIP_ELS_ID_MASK 0xc000 /* ELS_ID range 0-3, non-shifted mask */ #define LPFC_FIP_ELS_ID_SHIFT 14 #define LPFC_IO_OAS 0x10000 /* OAS FCP IO */ #define LPFC_IO_FOF 0x20000 /* FOF FCP IO */ #define LPFC_IO_LOOPBACK 0x40000 /* Loopback IO */ #define LPFC_PRLI_NVME_REQ 0x80000 /* This is an NVME PRLI. */ #define LPFC_PRLI_FCP_REQ 0x100000 /* This is an NVME PRLI. */ #define LPFC_IO_NVME 0x200000 /* NVME FCP command */ #define LPFC_IO_NVME_LS 0x400000 /* NVME LS command */ #define LPFC_IO_NVMET 0x800000 /* NVMET command */ #define LPFC_IO_VMID 0x1000000 /* VMID tagged IO */ #define LPFC_IO_CMF 0x4000000 /* CMF command */ uint32_t drvrTimeout; /* driver timeout in seconds */ struct lpfc_vport *vport;/* virtual port pointer */ struct lpfc_dmabuf *cmd_dmabuf; struct lpfc_dmabuf *rsp_dmabuf; struct lpfc_dmabuf *bpl_dmabuf; uint32_t event_tag; /* LA Event tag */ union { wait_queue_head_t *wait_queue; struct lpfcMboxq *mbox; struct lpfc_node_rrq *rrq; struct nvmefc_ls_req *nvme_lsreq; struct lpfc_async_xchg_ctx *axchg; struct bsg_job_data *dd_data; } context_un; struct lpfc_io_buf *io_buf; struct lpfc_iocbq *rsp_iocb; struct lpfc_nodelist *ndlp; union lpfc_vmid_tag vmid_tag; void (*fabric_cmd_cmpl)(struct lpfc_hba *phba, struct lpfc_iocbq *cmd, struct lpfc_iocbq *rsp); void (*wait_cmd_cmpl)(struct lpfc_hba *phba, struct lpfc_iocbq *cmd, struct lpfc_iocbq *rsp); void (*cmd_cmpl)(struct lpfc_hba *phba, struct lpfc_iocbq *cmd, struct lpfc_iocbq *rsp); }; #define SLI_IOCB_RET_IOCB 1 /* Return IOCB if cmd ring full */ #define IOCB_SUCCESS 0 #define IOCB_BUSY 1 #define IOCB_ERROR 2 #define IOCB_TIMEDOUT 3 #define IOCB_ABORTED 4 #define IOCB_ABORTING 5 #define IOCB_NORESOURCE 6 #define SLI_WQE_RET_WQE 1 /* Return WQE if cmd ring full */ #define WQE_SUCCESS 0 #define WQE_BUSY 1 #define WQE_ERROR 2 #define WQE_TIMEDOUT 3 #define WQE_ABORTED 4 #define WQE_ABORTING 5 #define WQE_NORESOURCE 6 #define LPFC_MBX_WAKE 1 #define LPFC_MBX_IMED_UNREG 2 typedef struct lpfcMboxq { /* MBOXQs are used in single linked lists */ struct list_head list; /* ptr to next mailbox command */ union { MAILBOX_t mb; /* Mailbox cmd */ struct lpfc_mqe mqe; } u; struct lpfc_vport *vport; /* virtual port pointer */ void *ctx_ndlp; /* caller ndlp information */ void *ctx_buf; /* caller buffer information */ void *context3; void (*mbox_cmpl) (struct lpfc_hba *, struct lpfcMboxq *); uint8_t mbox_flag; uint16_t in_ext_byte_len; uint16_t out_ext_byte_len; uint8_t mbox_offset_word; struct lpfc_mcqe mcqe; struct lpfc_mbx_nembed_sge_virt *sge_array; } LPFC_MBOXQ_t; #define MBX_POLL 1 /* poll mailbox till command done, then return */ #define MBX_NOWAIT 2 /* issue command then return immediately */ #define LPFC_MAX_RING_MASK 5 /* max num of rctl/type masks allowed per ring */ #define LPFC_SLI3_MAX_RING 4 /* Max num of SLI3 rings used by driver. For SLI4, an additional ring for each FCP WQ will be allocated. */ struct lpfc_sli_ring; struct lpfc_sli_ring_mask { uint8_t profile; /* profile associated with ring */ uint8_t rctl; /* rctl / type pair configured for ring */ uint8_t type; /* rctl / type pair configured for ring */ uint8_t rsvd; /* rcv'd unsol event */ void (*lpfc_sli_rcv_unsol_event) (struct lpfc_hba *, struct lpfc_sli_ring *, struct lpfc_iocbq *); }; /* Structure used to hold SLI statistical counters and info */ struct lpfc_sli_ring_stat { uint64_t iocb_event; /* IOCB event counters */ uint64_t iocb_cmd; /* IOCB cmd issued */ uint64_t iocb_rsp; /* IOCB rsp received */ uint64_t iocb_cmd_delay; /* IOCB cmd ring delay */ uint64_t iocb_cmd_full; /* IOCB cmd ring full */ uint64_t iocb_cmd_empty; /* IOCB cmd ring is now empty */ uint64_t iocb_rsp_full; /* IOCB rsp ring full */ }; struct lpfc_sli3_ring { uint32_t local_getidx; /* last available cmd index (from cmdGetInx) */ uint32_t next_cmdidx; /* next_cmd index */ uint32_t rspidx; /* current index in response ring */ uint32_t cmdidx; /* current index in command ring */ uint16_t numCiocb; /* number of command iocb's per ring */ uint16_t numRiocb; /* number of rsp iocb's per ring */ uint16_t sizeCiocb; /* Size of command iocb's in this ring */ uint16_t sizeRiocb; /* Size of response iocb's in this ring */ uint32_t *cmdringaddr; /* virtual address for cmd rings */ uint32_t *rspringaddr; /* virtual address for rsp rings */ }; struct lpfc_sli4_ring { struct lpfc_queue *wqp; /* Pointer to associated WQ */ }; /* Structure used to hold SLI ring information */ struct lpfc_sli_ring { uint16_t flag; /* ring flags */ #define LPFC_DEFERRED_RING_EVENT 0x001 /* Deferred processing a ring event */ #define LPFC_CALL_RING_AVAILABLE 0x002 /* indicates cmd was full */ #define LPFC_STOP_IOCB_EVENT 0x020 /* Stop processing IOCB cmds event */ uint16_t abtsiotag; /* tracks next iotag to use for ABTS */ uint8_t rsvd; uint8_t ringno; /* ring number */ spinlock_t ring_lock; /* lock for issuing commands */ uint32_t fast_iotag; /* max fastlookup based iotag */ uint32_t iotag_ctr; /* keeps track of the next iotag to use */ uint32_t iotag_max; /* max iotag value to use */ struct list_head txq; uint16_t txq_cnt; /* current length of queue */ uint16_t txq_max; /* max length */ struct list_head txcmplq; uint16_t txcmplq_cnt; /* current length of queue */ uint16_t txcmplq_max; /* max length */ uint32_t missbufcnt; /* keep track of buffers to post */ struct list_head postbufq; uint16_t postbufq_cnt; /* current length of queue */ uint16_t postbufq_max; /* max length */ struct list_head iocb_continueq; uint16_t iocb_continueq_cnt; /* current length of queue */ uint16_t iocb_continueq_max; /* max length */ struct list_head iocb_continue_saveq; struct lpfc_sli_ring_mask prt[LPFC_MAX_RING_MASK]; uint32_t num_mask; /* number of mask entries in prt array */ void (*lpfc_sli_rcv_async_status) (struct lpfc_hba *, struct lpfc_sli_ring *, struct lpfc_iocbq *); struct lpfc_sli_ring_stat stats; /* SLI statistical info */ /* cmd ring available */ void (*lpfc_sli_cmd_available) (struct lpfc_hba *, struct lpfc_sli_ring *); union { struct lpfc_sli3_ring sli3; struct lpfc_sli4_ring sli4; } sli; }; /* Structure used for configuring rings to a specific profile or rctl / type */ struct lpfc_hbq_init { uint32_t rn; /* Receive buffer notification */ uint32_t entry_count; /* max # of entries in HBQ */ uint32_t headerLen; /* 0 if not profile 4 or 5 */ uint32_t logEntry; /* Set to 1 if this HBQ used for LogEntry */ uint32_t profile; /* Selection profile 0=all, 7=logentry */ uint32_t ring_mask; /* Binds HBQ to a ring e.g. Ring0=b0001, * ring2=b0100 */ uint32_t hbq_index; /* index of this hbq in ring .HBQs[] */ uint32_t seqlenoff; uint32_t maxlen; uint32_t seqlenbcnt; uint32_t cmdcodeoff; uint32_t cmdmatch[8]; uint32_t mask_count; /* number of mask entries in prt array */ struct hbq_mask hbqMasks[6]; /* Non-config rings fields to keep track of buffer allocations */ uint32_t buffer_count; /* number of buffers allocated */ uint32_t init_count; /* number to allocate when initialized */ uint32_t add_count; /* number to allocate when starved */ } ; /* Structure used to hold SLI statistical counters and info */ struct lpfc_sli_stat { uint64_t mbox_stat_err; /* Mbox cmds completed status error */ uint64_t mbox_cmd; /* Mailbox commands issued */ uint64_t sli_intr; /* Count of Host Attention interrupts */ uint64_t sli_prev_intr; /* Previous cnt of Host Attention interrupts */ uint64_t sli_ips; /* Host Attention interrupts per sec */ uint32_t err_attn_event; /* Error Attn event counters */ uint32_t link_event; /* Link event counters */ uint32_t mbox_event; /* Mailbox event counters */ uint32_t mbox_busy; /* Mailbox cmd busy */ }; /* Structure to store link status values when port stats are reset */ struct lpfc_lnk_stat { uint32_t link_failure_count; uint32_t loss_of_sync_count; uint32_t loss_of_signal_count; uint32_t prim_seq_protocol_err_count; uint32_t invalid_tx_word_count; uint32_t invalid_crc_count; uint32_t error_frames; uint32_t link_events; }; /* Structure used to hold SLI information */ struct lpfc_sli { uint32_t num_rings; uint32_t sli_flag; /* Additional sli_flags */ #define LPFC_SLI_MBOX_ACTIVE 0x100 /* HBA mailbox is currently active */ #define LPFC_SLI_ACTIVE 0x200 /* SLI in firmware is active */ #define LPFC_PROCESS_LA 0x400 /* Able to process link attention */ #define LPFC_BLOCK_MGMT_IO 0x800 /* Don't allow mgmt mbx or iocb cmds */ #define LPFC_SLI_ASYNC_MBX_BLK 0x2000 /* Async mailbox is blocked */ #define LPFC_SLI_SUPPRESS_RSP 0x4000 /* Suppress RSP feature is supported */ #define LPFC_SLI_USE_EQDR 0x8000 /* EQ Delay Register is supported */ #define LPFC_QUEUE_FREE_INIT 0x10000 /* Queue freeing is in progress */ #define LPFC_QUEUE_FREE_WAIT 0x20000 /* Hold Queue free as it is being * used outside worker thread */ struct lpfc_sli_ring *sli3_ring; struct lpfc_sli_stat slistat; /* SLI statistical info */ struct list_head mboxq; uint16_t mboxq_cnt; /* current length of queue */ uint16_t mboxq_max; /* max length */ LPFC_MBOXQ_t *mbox_active; /* active mboxq information */ struct list_head mboxq_cmpl; struct timer_list mbox_tmo; /* Hold clk to timeout active mbox cmd */ #define LPFC_IOCBQ_LOOKUP_INCREMENT 1024 struct lpfc_iocbq ** iocbq_lookup; /* array to lookup IOCB by IOTAG */ size_t iocbq_lookup_len; /* current lengs of the array */ uint16_t last_iotag; /* last allocated IOTAG */ time64_t stats_start; /* in seconds */ struct lpfc_lnk_stat lnk_stat_offsets; }; /* Timeout for normal outstanding mbox command (Seconds) */ #define LPFC_MBOX_TMO 30 /* Timeout for non-flash-based outstanding sli_config mbox command (Seconds) */ #define LPFC_MBOX_SLI4_CONFIG_TMO 60 /* Timeout for flash-based outstanding sli_config mbox command (Seconds) */ #define LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO 300 /* Timeout for other flash-based outstanding mbox command (Seconds) */ #define LPFC_MBOX_TMO_FLASH_CMD 300 struct lpfc_io_buf { /* Common fields */ struct list_head list; void *data; dma_addr_t dma_handle; dma_addr_t dma_phys_sgl; struct sli4_sge *dma_sgl; /* initial segment chunk */ /* linked list of extra sli4_hybrid_sge */ struct list_head dma_sgl_xtra_list; /* list head for fcp_cmd_rsp buf */ struct list_head dma_cmd_rsp_list; struct lpfc_iocbq cur_iocbq; struct lpfc_sli4_hdw_queue *hdwq; uint16_t hdwq_no; uint16_t cpu; struct lpfc_nodelist *ndlp; uint32_t timeout; uint16_t flags; #define LPFC_SBUF_XBUSY 0x1 /* SLI4 hba reported XB on WCQE cmpl */ #define LPFC_SBUF_BUMP_QDEPTH 0x2 /* bumped queue depth counter */ /* External DIF device IO conversions */ #define LPFC_SBUF_NORMAL_DIF 0x4 /* normal mode to insert/strip */ #define LPFC_SBUF_PASS_DIF 0x8 /* insert/strip mode to passthru */ #define LPFC_SBUF_NOT_POSTED 0x10 /* SGL failed post to FW. */ uint16_t status; /* From IOCB Word 7- ulpStatus */ uint32_t result; /* From IOCB Word 4. */ uint32_t seg_cnt; /* Number of scatter-gather segments returned by * dma_map_sg. The driver needs this for calls * to dma_unmap_sg. */ unsigned long start_time; spinlock_t buf_lock; /* lock used in case of simultaneous abort */ bool expedite; /* this is an expedite io_buf */ union { /* SCSI specific fields */ struct { struct scsi_cmnd *pCmd; struct lpfc_rport_data *rdata; uint32_t prot_seg_cnt; /* seg_cnt's counterpart for * protection data */ /* * data and dma_handle are the kernel virtual and bus * address of the dma-able buffer containing the * fcp_cmd, fcp_rsp and a scatter gather bde list that * supports the sg_tablesize value. */ struct fcp_cmnd *fcp_cmnd; struct fcp_rsp *fcp_rsp; wait_queue_head_t *waitq; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS /* Used to restore any changes to protection data for * error injection */ void *prot_data_segment; uint32_t prot_data; uint32_t prot_data_type; #define LPFC_INJERR_REFTAG 1 #define LPFC_INJERR_APPTAG 2 #define LPFC_INJERR_GUARD 3 #endif }; /* NVME specific fields */ struct { struct nvmefc_fcp_req *nvmeCmd; uint16_t qidx; }; }; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS uint64_t ts_cmd_start; uint64_t ts_last_cmd; uint64_t ts_cmd_wqput; uint64_t ts_isr_cmpl; uint64_t ts_data_io; #endif uint64_t rx_cmd_start; };
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