diff options
Diffstat (limited to 'drivers/scsi/ibmvscsi/ibmvfc.h')
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvfc.h | 91 |
1 files changed, 72 insertions, 19 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index 9d58cfd774d3..19dcec3ae9ba 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -41,6 +41,12 @@ #define IBMVFC_DEFAULT_LOG_LEVEL 2 #define IBMVFC_MAX_CDB_LEN 16 #define IBMVFC_CLS3_ERROR 0 +#define IBMVFC_MQ 1 +#define IBMVFC_SCSI_CHANNELS 8 +#define IBMVFC_MAX_SCSI_QUEUES 16 +#define IBMVFC_SCSI_HW_QUEUES 8 +#define IBMVFC_MIG_NO_SUB_TO_CRQ 0 +#define IBMVFC_MIG_NO_N_TO_M 0 /* * Ensure we have resources for ERP and initialization: @@ -645,11 +651,10 @@ struct ibmvfc_crq { volatile __be64 ioba; } __packed __aligned(8); -struct ibmvfc_crq_queue { - struct ibmvfc_crq *msgs; - int size, cur; - dma_addr_t msg_token; -}; +struct ibmvfc_sub_crq { + struct ibmvfc_crq crq; + __be64 reserved[2]; +} __packed __aligned(8); enum ibmvfc_ae_link_state { IBMVFC_AE_LS_LINK_UP = 0x01, @@ -678,12 +683,6 @@ struct ibmvfc_async_crq { __be64 reserved; } __packed __aligned(8); -struct ibmvfc_async_crq_queue { - struct ibmvfc_async_crq *msgs; - int size, cur; - dma_addr_t msg_token; -}; - union ibmvfc_iu { struct ibmvfc_mad_common mad_common; struct ibmvfc_npiv_login_mad npiv_login; @@ -738,13 +737,16 @@ struct ibmvfc_target { /* a unit of work for the hosting partition */ struct ibmvfc_event { - struct list_head queue; + struct list_head queue_list; + struct list_head cancel; struct ibmvfc_host *vhost; + struct ibmvfc_queue *queue; struct ibmvfc_target *tgt; struct scsi_cmnd *cmnd; atomic_t free; union ibmvfc_iu *xfer_iu; - void (*done) (struct ibmvfc_event *); + void (*done)(struct ibmvfc_event *evt); + void (*_done)(struct ibmvfc_event *evt); struct ibmvfc_crq crq; union ibmvfc_iu iu; union ibmvfc_iu *sync_iu; @@ -753,6 +755,7 @@ struct ibmvfc_event { struct completion comp; struct completion *eh_comp; struct timer_list timer; + u16 hwq; }; /* a pool of event structs for use */ @@ -763,6 +766,49 @@ struct ibmvfc_event_pool { dma_addr_t iu_token; }; +enum ibmvfc_msg_fmt { + IBMVFC_CRQ_FMT = 0, + IBMVFC_ASYNC_FMT, + IBMVFC_SUB_CRQ_FMT, +}; + +union ibmvfc_msgs { + void *handle; + struct ibmvfc_crq *crq; + struct ibmvfc_async_crq *async; + struct ibmvfc_sub_crq *scrq; +}; + +struct ibmvfc_queue { + union ibmvfc_msgs msgs; + dma_addr_t msg_token; + enum ibmvfc_msg_fmt fmt; + int size, cur; + spinlock_t _lock; + spinlock_t *q_lock; + + struct ibmvfc_event_pool evt_pool; + struct list_head sent; + struct list_head free; + spinlock_t l_lock; + + union ibmvfc_iu cancel_rsp; + + /* Sub-CRQ fields */ + struct ibmvfc_host *vhost; + unsigned long cookie; + unsigned long vios_cookie; + unsigned long hw_irq; + unsigned long irq; + unsigned long hwq_id; + char name[32]; +}; + +struct ibmvfc_scsi_channels { + struct ibmvfc_queue *scrqs; + unsigned int active_queues; +}; + enum ibmvfc_host_action { IBMVFC_HOST_ACTION_NONE = 0, IBMVFC_HOST_ACTION_RESET, @@ -797,26 +843,29 @@ struct ibmvfc_host { enum ibmvfc_host_action action; #define IBMVFC_NUM_TRACE_INDEX_BITS 8 #define IBMVFC_NUM_TRACE_ENTRIES (1 << IBMVFC_NUM_TRACE_INDEX_BITS) +#define IBMVFC_TRACE_INDEX_MASK (IBMVFC_NUM_TRACE_ENTRIES - 1) #define IBMVFC_TRACE_SIZE (sizeof(struct ibmvfc_trace_entry) * IBMVFC_NUM_TRACE_ENTRIES) struct ibmvfc_trace_entry *trace; - u32 trace_index:IBMVFC_NUM_TRACE_INDEX_BITS; + atomic_t trace_index; int num_targets; struct list_head targets; - struct list_head sent; - struct list_head free; + struct list_head purge; struct device *dev; - struct ibmvfc_event_pool pool; struct dma_pool *sg_pool; mempool_t *tgt_pool; - struct ibmvfc_crq_queue crq; - struct ibmvfc_async_crq_queue async_crq; + struct ibmvfc_queue crq; + struct ibmvfc_queue async_crq; + struct ibmvfc_scsi_channels scsi_scrqs; struct ibmvfc_npiv_login login_info; union ibmvfc_npiv_login_data *login_buf; dma_addr_t login_buf_dma; + struct ibmvfc_channel_setup *channel_setup_buf; + dma_addr_t channel_setup_dma; int disc_buf_sz; int log_level; struct ibmvfc_discover_targets_entry *disc_buf; struct mutex passthru_mutex; + int max_vios_scsi_channels; int task_set; int init_retries; int discovery_threads; @@ -826,6 +875,10 @@ struct ibmvfc_host { int delay_init; int scan_complete; int logged_in; + int mq_enabled; + int using_channels; + int do_enquiry; + int client_scsi_channels; int aborting_passthru; int events_to_log; #define IBMVFC_AE_LINKUP 0x0001 |