/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2017-2024 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. *
*******************************************************************/
/* 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 */
typedefstruct 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 */ struct lpfc_nodelist *ctx_ndlp; /* caller ndlp pointer */ struct lpfc_dmabuf *ctx_buf; /* caller buffer information */ void *ext_buf; /* extended buffer for extended mbox * cmds. Not a generic pointer. * Use for storing virtual address.
*/
/* Pointers that are seldom used during mbox execution, but require * a saved context.
*/ union { unsignedlong ox_rx_id; /* Used in els_rsp_rls_acc */ struct lpfc_rdp_context *rdp; /* Used in get_rdp_info */ struct lpfc_lcb_context *lcb; /* Used in set_beacon */ struct completion *mbox_wait; /* Used in issue_mbox_wait */ struct bsg_job_data *dd_data; /* Used in bsg_issue_mbox_cmpl * and * bsg_issue_mbox_ext_handle_job
*/ struct lpfc_iocbq *save_iocb; /* Used in defer_plogi_acc and * lpfc_mbx_cmpl_resume_rpi
*/
} ctx_u;
#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 */
};
/* 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_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.
*/ unsignedlong 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
};
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