lpfc 8.3.18: Add logic to detect last devloss timeout
Subsystems (2)
PATCH 3/7 lpfc 8.3.18: Add logic to detect last devloss timeout
Added driver logic to detect the last devloss timeout of remote nodes which was still in use of FCF. At that point, the driver should set the last in-use remote node devloss timeout flag if it was not already set and should perform proper action on the in-use FCF and recover of FCF from firmware, depending on the state the driver's FIP engine is in.
Find eligible FCF through FCF table rescan or the next new FCF event when FCF table rescan turned out empty eligible FCF, and the successful flogi into an FCF shall clear the HBA_DEVLOSS_TMO flag, indicating the successful recovery from devloss timeout.
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lpfc.h | 8 - lpfc_crtn.h | 1 lpfc_els.c | 54 +------- lpfc_hbadisc.c | 348 +++++++++++++++++++++++++++++++++++++++++++-------------- lpfc_init.c | 41 ++---- lpfc_sli.c | 72 +++-------- lpfc_sli4.h | 6 7 files changed, 326 insertions(+), 204 deletions(-)
drivers/scsi/lpfc/lpfc_crtn.h +1 -0
@@ -229,6 +229,7 @@ void lpfc_sli4_fcf_dead_failthrough(struuint16_t lpfc_sli4_fcf_rr_next_index_get (struct lpfc_hba *);int lpfc_sli4_fcf_rr_index_set (struct lpfc_hba *,uint16_t );void lpfc_sli4_fcf_rr_index_clear (struct lpfc_hba *,uint16_t ); +int lpfc_sli4_fcf_rr_next_proc (struct lpfc_vport *,uint16_t );int lpfc_mem_alloc (struct lpfc_hba *,int align);void lpfc_mem_free (struct lpfc_hba *);
drivers/scsi/lpfc/lpfc_els.c +11 -43
85 lines not on this page · raw message
drivers/scsi/lpfc/lpfc.h +5 -3
@@ -552,9 +552,11 @@ struct lpfc_hba {#define ELS_XRI_ABORT_EVENT 0x40#define ASYNC_EVENT 0x80#define LINK_DISABLED 0x100/* Link disabled by user */ -#define FCF_DISC_INPROGRESS 0x200/* FCF discovery in progress */ -#define HBA_FIP_SUPPORT 0x400/* FIP support in HBA */ -#define HBA_AER_ENABLED 0x800/* AER enabled with HBA */ +#define FCF_TS_INPROG 0x200/* FCF table scan in progress */ +#define FCF_RR_INPROG 0x400/* FCF roundrobin flogi in progress */ +#define HBA_FIP_SUPPORT 0x800/* FIP support in HBA */ +#define HBA_AER_ENABLED 0x1000/* AER enabled with HBA */ +#define HBA_DEVLOSS_TMO 0x2000/* HBA in devloss timeout */ uint32_t fcp_ring_in_use;/* When polling test if intr-hndlr active*/ struct lpfc_dmabuf slim2p;
drivers/scsi/lpfc/lpfc_hbadisc.c +263 -85
608 lines not on this page · raw message
drivers/scsi/lpfc/lpfc_init.c +18 -23
109 lines not on this page · raw message
drivers/scsi/lpfc/lpfc_sli4.h +4 -2
@@ -23,6 +23,9 @@#define LPFC_GET_QE_REL_INT 32#define LPFC_RPI_LOW_WATER_MARK 10 +#define LPFC_UNREG_FCF 1 +#define LPFC_SKIP_UNREG_FCF 0 +/* Amount of time in seconds for waiting FCF rediscovery to complete */ #define LPFC_FCF_REDISCOVER_WAIT_TMO 2000/* msec */
@@ -163,9 +166,8 @@ struct lpfc_fcf {#define FCF_REDISC_PEND 0x80/* FCF rediscovery pending */ #define FCF_REDISC_EVT 0x100/* FCF rediscovery event to worker thread */ #define FCF_REDISC_FOV 0x200/* Post FCF rediscovery fast failover */ -#define FCF_REDISC_RRU 0x400/* Roundrobin bitmap updated */ +#define FCF_REDISC_PROG (FCF_REDISC_PEND | FCF_REDISC_EVT)uint32_t addr_mode; -uint16_t fcf_rr_init_indx;uint32_t eligible_fcf_cnt;struct lpfc_fcf_rec current_rec;struct lpfc_fcf_rec failover_rec;
drivers/scsi/lpfc/lpfc_sli.c +24 -48
167 lines not on this page · raw message