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path: root/drivers/scsi/be2iscsi/be_mgmt.c
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Diffstat (limited to 'drivers/scsi/be2iscsi/be_mgmt.c')
-rw-r--r--drivers/scsi/be2iscsi/be_mgmt.c77
1 files changed, 73 insertions, 4 deletions
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 681d4e8f003a..ca4016f20e76 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -1,5 +1,5 @@
/**
- * Copyright (C) 2005 - 2014 Emulex
+ * Copyright (C) 2005 - 2015 Avago Technologies
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
@@ -7,12 +7,12 @@
* as published by the Free Software Foundation. The full GNU General
* Public License is included in this distribution in the file called COPYING.
*
- * Written by: Jayamohan Kallickal (jayamohan.kallickal@emulex.com)
+ * Written by: Jayamohan Kallickal (jayamohan.kallickal@avagotech.com)
*
* Contact Information:
- * linux-drivers@emulex.com
+ * linux-drivers@avagotech.com
*
- * Emulex
+ * Avago Technologies
* 3333 Susan Street
* Costa Mesa, CA 92626
*/
@@ -1707,3 +1707,72 @@ void beiscsi_offload_cxn_v2(struct beiscsi_offload_params *params,
(params->dw[offsetof(struct amap_beiscsi_offload_params,
exp_statsn) / 32] + 1));
}
+
+/**
+ * beiscsi_logout_fw_sess()- Firmware Session Logout
+ * @phba: Device priv structure instance
+ * @fw_sess_handle: FW session handle
+ *
+ * Logout from the FW established sessions.
+ * returns
+ * Success: 0
+ * Failure: Non-Zero Value
+ *
+ */
+int beiscsi_logout_fw_sess(struct beiscsi_hba *phba,
+ uint32_t fw_sess_handle)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_logout_fw_sess *req;
+ struct be_cmd_resp_logout_fw_sess *resp;
+ unsigned int tag;
+ int rc;
+
+ beiscsi_log(phba, KERN_INFO,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BG_%d : In bescsi_logout_fwboot_sess\n");
+
+ spin_lock(&ctrl->mbox_lock);
+ tag = alloc_mcc_tag(phba);
+ if (!tag) {
+ spin_unlock(&ctrl->mbox_lock);
+ beiscsi_log(phba, KERN_INFO,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BG_%d : MBX Tag Failure\n");
+ return -EINVAL;
+ }
+
+ wrb = wrb_from_mccq(phba);
+ req = embedded_payload(wrb);
+ wrb->tag0 |= tag;
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET,
+ sizeof(struct be_cmd_req_logout_fw_sess));
+
+ /* Set the session handle */
+ req->session_handle = fw_sess_handle;
+ be_mcc_notify(phba);
+ spin_unlock(&ctrl->mbox_lock);
+
+ rc = beiscsi_mccq_compl(phba, tag, &wrb, NULL);
+ if (rc) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+ "BG_%d : MBX CMD FW_SESSION_LOGOUT_TARGET Failed\n");
+ return -EBUSY;
+ }
+
+ resp = embedded_payload(wrb);
+ if (resp->session_status !=
+ BEISCSI_MGMT_SESSION_CLOSE) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+ "BG_%d : FW_SESSION_LOGOUT_TARGET resp : 0x%x\n",
+ resp->session_status);
+ rc = -EINVAL;
+ }
+
+ return rc;
+}