diff options
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_cmnd.h | 3 | ||||
| -rw-r--r-- | include/scsi/scsi_common.h | 7 | ||||
| -rw-r--r-- | include/scsi/scsi_device.h | 1 | ||||
| -rw-r--r-- | include/scsi/scsi_host.h | 9 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_fc.h | 1 |
5 files changed, 19 insertions, 2 deletions
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index e76bac4d14c5..69ade4fb71aa 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -165,7 +165,8 @@ extern void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count, size_t *offset, size_t *len); extern void scsi_kunmap_atomic_sg(void *virt); -extern blk_status_t scsi_init_io(struct scsi_cmnd *cmd); +blk_status_t scsi_alloc_sgtables(struct scsi_cmnd *cmd); +void scsi_free_sgtables(struct scsi_cmnd *cmd); #ifdef CONFIG_SCSI_DMA extern int scsi_dma_map(struct scsi_cmnd *cmd); diff --git a/include/scsi/scsi_common.h b/include/scsi/scsi_common.h index 731ac09ed231..5b567b43e1b1 100644 --- a/include/scsi/scsi_common.h +++ b/include/scsi/scsi_common.h @@ -25,6 +25,13 @@ scsi_command_size(const unsigned char *cmnd) scsi_varlen_cdb_length(cmnd) : COMMAND_SIZE(cmnd[0]); } +static inline unsigned char +scsi_command_control(const unsigned char *cmnd) +{ + return (cmnd[0] == VARIABLE_LENGTH_CMD) ? + cmnd[1] : cmnd[COMMAND_SIZE(cmnd[0]) - 1]; +} + /* Returns a human-readable name for the device */ extern const char *scsi_device_type(unsigned type); diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index bc5909033d13..1a5c9a3df6d6 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -109,6 +109,7 @@ struct scsi_device { atomic_t device_busy; /* commands actually active on LLDD */ atomic_t device_blocked; /* Device returned QUEUE_FULL. */ + atomic_t restarts; spinlock_t list_lock; struct list_head starved_entry; unsigned short queue_depth; /* How deep of a queue we want */ diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 46ef8cccc982..701f178b20ae 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -436,6 +436,9 @@ struct scsi_host_template { /* True if the controller does not support WRITE SAME */ unsigned no_write_same:1; + /* True if the host uses host-wide tagspace */ + unsigned host_tagset:1; + /* * Countdown for host blocking with no commands outstanding. */ @@ -603,7 +606,8 @@ struct Scsi_Host { * * Note: it is assumed that each hardware queue has a queue depth of * can_queue. In other words, the total queue depth per host - * is nr_hw_queues * can_queue. + * is nr_hw_queues * can_queue. However, for when host_tagset is set, + * the total queue depth is can_queue. */ unsigned nr_hw_queues; unsigned active_mode:2; @@ -634,6 +638,9 @@ struct Scsi_Host { /* The controller does not support WRITE SAME */ unsigned no_write_same:1; + /* True if the host uses host-wide tagspace */ + unsigned host_tagset:1; + /* Host responded with short (<36 bytes) INQUIRY result */ unsigned short_inquiry:1; diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index 7db2dd783834..1c7dd35cb7a0 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -124,6 +124,7 @@ enum fc_vport_state { #define FC_PORTSPEED_25GBIT 0x800 #define FC_PORTSPEED_64GBIT 0x1000 #define FC_PORTSPEED_128GBIT 0x2000 +#define FC_PORTSPEED_256GBIT 0x4000 #define FC_PORTSPEED_NOT_NEGOTIATED (1 << 15) /* Speed not established */ /* |