diff options
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_base.h')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_base.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h index 63f7a196f42d..edf1a028db6c 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.h +++ b/drivers/scsi/mpt2sas/mpt2sas_base.h @@ -419,6 +419,18 @@ enum reset_type { }; /** + * struct chain_tracker - firmware chain tracker + * @chain_buffer: chain buffer + * @chain_buffer_dma: physical address + * @tracker_list: list of free request (ioc->free_chain_list) + */ +struct chain_tracker { + void *chain_buffer; + dma_addr_t chain_buffer_dma; + struct list_head tracker_list; +}; + +/** * struct request_tracker - firmware request tracker * @smid: system message id * @scmd: scsi request pointer @@ -430,6 +442,7 @@ struct request_tracker { u16 smid; struct scsi_cmnd *scmd; u8 cb_idx; + struct list_head chain_list; struct list_head tracker_list; }; @@ -704,8 +717,10 @@ struct MPT2SAS_ADAPTER { wait_queue_head_t reset_wq; /* chain */ - u8 *chain; - dma_addr_t chain_dma; + struct chain_tracker *chain_lookup; + struct list_head free_chain_list; + struct dma_pool *chain_dma_pool; + ulong chain_pages; u16 max_sges_in_main_message; u16 max_sges_in_chain_message; u16 chains_needed_per_io; |