scsi: be2iscsi: Fix to make boot discovery non-blocking

Boot work involves:
1. Find and fetch configured boot session and its handle.
2. Attempt to open the session if its not.
3. Get the session details for boot kset creation.
4. Logout of that session owned by FW.
5. Create boot kset for session details.

All these actions were done in blocking call with retries in global wq.
Other works in wq suffered if the IOCTLs stalled or timed out.

This change moves all the boot work to make it non-blocking.
The work queued in global wq just issues the IOCTL depending on the action
to be taken and mcc wq schedules work depending on status of the IOCTL.
Initial boot_work is started on link and ASYNC event.

The other code changes move all boot related functions in one place and
follow naming conventions.

Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 10 insertions, 13 deletions

diff --git a/drivers/scsi/be2iscsi/be_mgmt.h b/drivers/scsi/be2iscsi/be_mgmt.h
index 294b740..25053483 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.h
+++ b/drivers/scsi/be2iscsi/be_mgmt.h
@@ -282,16 +282,6 @@ int beiscsi_if_en_dhcp(struct beiscsi_hba *phba, u32 ip_type);
 int beiscsi_if_en_static(struct beiscsi_hba *phba, u32 ip_type,
 			 u8 *ip, u8 *subnet);
 
-unsigned int mgmt_get_boot_target(struct beiscsi_hba *phba);
-
-unsigned int mgmt_reopen_session(struct beiscsi_hba *phba,
-				  unsigned int reopen_type,
-				  unsigned sess_handle);
-
-unsigned int mgmt_get_session_info(struct beiscsi_hba *phba,
-				   u32 boot_session_handle,
-				   struct be_dma_mem *nonemb_cmd);
-
 int mgmt_get_nic_conf(struct beiscsi_hba *phba,
 		      struct be_cmd_get_nic_conf_resp *mac);
 
@@ -303,13 +293,20 @@ int beiscsi_if_get_gw(struct beiscsi_hba *phba, u32 ip_type,
 
 int beiscsi_if_set_gw(struct beiscsi_hba *phba, u32 ip_type, u8 *gw);
 
-int be_mgmt_get_boot_shandle(struct beiscsi_hba *phba,
-			      unsigned int *s_handle);
-
 unsigned int beiscsi_if_get_handle(struct beiscsi_hba *phba);
 
 int beiscsi_if_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag);
 
+unsigned int beiscsi_boot_logout_sess(struct beiscsi_hba *phba);
+
+unsigned int beiscsi_boot_reopen_sess(struct beiscsi_hba *phba);
+
+unsigned int beiscsi_boot_get_sinfo(struct beiscsi_hba *phba);
+
+unsigned int __beiscsi_boot_get_shandle(struct beiscsi_hba *phba, int async);
+
+int beiscsi_boot_get_shandle(struct beiscsi_hba *phba, unsigned int *s_handle);
+
 ssize_t beiscsi_drvr_ver_disp(struct device *dev,
 			       struct device_attribute *attr, char *buf);