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| author | James Smart <James.Smart@Emulex.Com> | 2008-08-24 21:50:30 -0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-10-13 09:28:55 -0400 |
| commit | 9399627f340794baebf7e4581470ccb92f019acc (patch) | |
| tree | c30e656a1c353e2f025bb5ca3daf142128434a34 /drivers/scsi/lpfc/lpfc.h | |
| parent | 0f1f53a7efd60d7cdd8e82925f0c62dcf64ba092 (diff) | |
| download | linux-3.10-9399627f340794baebf7e4581470ccb92f019acc.tar.gz linux-3.10-9399627f340794baebf7e4581470ccb92f019acc.tar.bz2 linux-3.10-9399627f340794baebf7e4581470ccb92f019acc.zip | |
[SCSI] lpfc 8.2.8 : Add MSI-X support
Add support for MSI-X Multi-Message interrupts. We use different vectors
for fast-path interrupts (i/o) and slow-patch interrupts (discovery, etc).
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc.h | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index aee5444b63d..18153846611 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -49,6 +49,9 @@ struct lpfc_sli2_slim; #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */ #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */ +/* Error Attention event polling interval */ +#define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */ + /* Define macros for 64 bit support */ #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) @@ -60,6 +63,9 @@ struct lpfc_sli2_slim; #define MAX_HBAEVT 32 +/* Number of MSI-X vectors the driver uses */ +#define LPFC_MSIX_VECTORS 2 + /* lpfc wait event data ready flag */ #define LPFC_DATA_READY (1<<0) @@ -423,12 +429,16 @@ struct lpfc_hba { #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ + uint32_t hba_flag; /* hba generic flags */ +#define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */ + struct lpfc_dmabuf slim2p; MAILBOX_t *mbox; uint32_t *inb_ha_copy; uint32_t *inb_counter; uint32_t inb_last_counter; + uint32_t ha_copy; struct _PCB *pcb; struct _IOCB *IOCBs; @@ -544,6 +554,7 @@ struct lpfc_hba { uint8_t soft_wwn_enable; struct timer_list fcp_poll_timer; + struct timer_list eratt_poll; /* * stat counters @@ -573,7 +584,7 @@ struct lpfc_hba { struct fc_host_statistics link_stats; enum intr_type_t intr_type; - struct msix_entry msix_entries[1]; + struct msix_entry msix_entries[LPFC_MSIX_VECTORS]; struct list_head port_list; struct lpfc_vport *pport; /* physical lpfc_vport pointer */ @@ -660,6 +671,28 @@ lpfc_worker_wake_up(struct lpfc_hba *phba) return; } +static inline void +lpfc_sli_read_hs(struct lpfc_hba *phba) +{ + /* + * There was a link/board error. Read the status register to retrieve + * the error event and process it. + */ + phba->sli.slistat.err_attn_event++; + + /* Save status info */ + phba->work_hs = readl(phba->HSregaddr); + phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); + phba->work_status[1] = readl(phba->MBslimaddr + 0xac); + + /* Clear chip Host Attention error bit */ + writel(HA_ERATT, phba->HAregaddr); + readl(phba->HAregaddr); /* flush */ + phba->pport->stopped = 1; + + return; +} + #define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */ #define FC_REG_TEMPERATURE_EVENT 0x20 /* Register for temperature event */ |