summaryrefslogtreecommitdiff
path: root/drivers/scsi/mpt2sas/mpt2sas_base.h
diff options
context:
space:
mode:
authorKashyap, Desai <kashyap.desai@lsi.com>2009-09-14 11:04:23 +0530
committerJames Bottomley <James.Bottomley@suse.de>2009-10-02 09:48:38 -0500
commit77e63ed44305e89c0564f8292f9cd5764d4fddfb (patch)
tree66aab9af95be1daadf6e648b008f9c1d77cf1ac0 /drivers/scsi/mpt2sas/mpt2sas_base.h
parent595bb0bd62edb28a965993d90e0fa1285560ce53 (diff)
[SCSI] mpt2sas: Target Reset will be issued from Interrupt context.
(1) Added three new functions to handle sending target resest and OP_REMOVE from interrupt time, they are _scsih_tm_tr_send, _scsih_tm_tr_complete, and _scsih_sas_control_complete. This code will create a link list of pending target resets if there is no more available request in the hipriority request queue. The list is stored in ioc->delayed_tr_list. (2) All callback handler return type is changed from void to u8. Now _base_interrupt will check for return type of callback handlers to take decision of message frame is already freed or not. In genral, Return 1 meaning mf should be freed from _base_interrupt 0 means the mf is freed from function. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_base.h')
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_base.h41
1 files changed, 30 insertions, 11 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h
index 91132626f4c5..7f94be90ad12 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.h
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.h
@@ -307,6 +307,7 @@ struct _sas_device {
u16 slot;
u8 hidden_raid_component;
u8 responding;
+ u16 state;
};
/**
@@ -443,6 +444,17 @@ struct request_tracker {
struct list_head tracker_list;
};
+/**
+ * struct _tr_list - target reset list
+ * @handle: device handle
+ * @state: state machine
+ */
+struct _tr_list {
+ struct list_head list;
+ u16 handle;
+ u16 state;
+};
+
typedef void (*MPT_ADD_SGE)(void *paddr, u32 flags_length, dma_addr_t dma_addr);
/**
@@ -617,6 +629,8 @@ struct MPT2SAS_ADAPTER {
u8 ctl_cb_idx;
u8 base_cb_idx;
u8 config_cb_idx;
+ u8 tm_tr_cb_idx;
+ u8 tm_sas_control_cb_idx;
struct _internal_cmd base_cmds;
struct _internal_cmd transport_cmds;
struct _internal_cmd tm_cmds;
@@ -727,6 +741,8 @@ struct MPT2SAS_ADAPTER {
struct dma_pool *reply_post_free_dma_pool;
u32 reply_post_host_index;
+ struct list_head delayed_tr_list;
+
/* diag buffer support */
u8 *diag_buffer[MPI2_DIAG_BUF_TYPE_COUNT];
u32 diag_buffer_sz[MPI2_DIAG_BUF_TYPE_COUNT];
@@ -738,8 +754,8 @@ struct MPT2SAS_ADAPTER {
u32 diagnostic_flags[MPI2_DIAG_BUF_TYPE_COUNT];
};
-typedef void (*MPT_CALLBACK)(struct MPT2SAS_ADAPTER *ioc, u16 smid,
- u8 msix_index, u32 reply);
+typedef u8 (*MPT_CALLBACK)(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+ u32 reply);
/* base shared API */
@@ -757,7 +773,8 @@ int mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
void *mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid);
void *mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid);
void mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr);
-dma_addr_t mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid);
+dma_addr_t mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc,
+ u16 smid);
/* hi-priority queue */
u16 mpt2sas_base_get_smid_hpr(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx);
@@ -776,7 +793,7 @@ void mpt2sas_base_initialize_callback_handler(void);
u8 mpt2sas_base_register_callback_handler(MPT_CALLBACK cb_func);
void mpt2sas_base_release_callback_handler(u8 cb_idx);
-void mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+u8 mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
u32 reply);
void *mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr);
@@ -791,6 +808,8 @@ int mpt2sas_base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc,
void mpt2sas_base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_type);
/* scsih shared API */
+u8 mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
+ u32 reply);
void mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint lun,
u8 type, u16 smid_task, ulong timeout);
void mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle);
@@ -802,12 +821,10 @@ struct _sas_node *mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAP
struct _sas_device *mpt2sas_scsih_sas_device_find_by_sas_address(
struct MPT2SAS_ADAPTER *ioc, u64 sas_address);
-void mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
- u32 reply);
void mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase);
/* config shared API */
-void mpt2sas_config_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+u8 mpt2sas_config_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
u32 reply);
int mpt2sas_config_get_number_hba_phys(struct MPT2SAS_ADAPTER *ioc, u8 *num_phys);
int mpt2sas_config_get_manufacturing_pg0(struct MPT2SAS_ADAPTER *ioc,
@@ -861,17 +878,17 @@ extern struct device_attribute *mpt2sas_host_attrs[];
extern struct device_attribute *mpt2sas_dev_attrs[];
void mpt2sas_ctl_init(void);
void mpt2sas_ctl_exit(void);
-void mpt2sas_ctl_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+u8 mpt2sas_ctl_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
u32 reply);
void mpt2sas_ctl_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase);
-void mpt2sas_ctl_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
+u8 mpt2sas_ctl_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
u32 reply);
void mpt2sas_ctl_add_to_event_log(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventNotificationReply_t *mpi_reply);
/* transport shared API */
-void mpt2sas_transport_done(struct MPT2SAS_ADAPTER *ioc, u16 smid,
- u8 msix_index, u32 reply);
+u8 mpt2sas_transport_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+ u32 reply);
struct _sas_port *mpt2sas_transport_port_add(struct MPT2SAS_ADAPTER *ioc,
u16 handle, u16 parent_handle);
void mpt2sas_transport_port_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
@@ -885,6 +902,8 @@ void mpt2sas_transport_update_links(struct MPT2SAS_ADAPTER *ioc, u16 handle,
extern struct sas_function_template mpt2sas_transport_functions;
extern struct scsi_transport_template *mpt2sas_transport_template;
extern int scsi_internal_device_block(struct scsi_device *sdev);
+extern u8 mpt2sas_stm_zero_smid_handler(struct MPT2SAS_ADAPTER *ioc,
+ u8 msix_index, u32 reply);
extern int scsi_internal_device_unblock(struct scsi_device *sdev);
#endif /* MPT2SAS_BASE_H_INCLUDED */