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authorJohn Soni Jose <sony.john-n@emulex.com>2015-04-25 08:18:13 +0530
committerJames Bottomley <JBottomley@Odin.com>2015-05-25 08:55:41 -0700
commit3f4134c12af8d76eb87e12bc47dd33a4fb1555d8 (patch)
tree5567a3772d6ba7a8a99abd39cd8daa430d4d27e1 /drivers/scsi/be2iscsi
parenteb1c46924dfb48489272e8dc561bed9693e143d4 (diff)
downloadlinux-3f4134c12af8d76eb87e12bc47dd33a4fb1555d8.tar.bz2
be2iscsi : Logout of FW Boot Session
Once be2iscsi driver is loaded and operational close Boot session established by FW. Signed-off-by: John Soni Jose <sony.john-n@emulex.com> Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/be2iscsi')
-rw-r--r--drivers/scsi/be2iscsi/be_cmds.h12
-rw-r--r--drivers/scsi/be2iscsi/be_main.c3
-rw-r--r--drivers/scsi/be2iscsi/be_mgmt.c69
-rw-r--r--drivers/scsi/be2iscsi/be_mgmt.h3
4 files changed, 87 insertions, 0 deletions
diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
index f11d325fe696..cdfbc5c19cf4 100644
--- a/drivers/scsi/be2iscsi/be_cmds.h
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -304,6 +304,17 @@ struct mgmt_auth_method_format {
struct mgmt_chap_format chap;
} __packed;
+struct be_cmd_req_logout_fw_sess {
+ struct be_cmd_req_hdr hdr; /* dw[4] */
+ uint32_t session_handle;
+} __packed;
+
+struct be_cmd_resp_logout_fw_sess {
+ struct be_cmd_resp_hdr hdr; /* dw[4] */
+#define BEISCSI_MGMT_SESSION_CLOSE 0x20
+ uint32_t session_status;
+} __packed;
+
struct mgmt_conn_login_options {
u8 flags;
u8 header_digest;
@@ -1136,6 +1147,7 @@ struct be_cmd_get_all_if_id_req {
#define OPCODE_ISCSI_INI_CFG_GET_HBA_NAME 6
#define OPCODE_ISCSI_INI_CFG_SET_HBA_NAME 7
#define OPCODE_ISCSI_INI_SESSION_GET_A_SESSION 14
+#define OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET 24
#define OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS 36
#define OPCODE_ISCSI_INI_DRIVER_OFFLOAD_SESSION 41
#define OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION 42
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 65108370bfef..7a6dbfbccec9 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -4400,6 +4400,9 @@ static int beiscsi_get_boot_info(struct beiscsi_hba *phba)
memcpy(&phba->boot_sess, &session_resp->session_info,
sizeof(struct mgmt_session_info));
+
+ beiscsi_logout_fw_sess(phba,
+ phba->boot_sess.session_handle);
ret = 0;
boot_freemem:
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index c2c4d6975fb7..ca4016f20e76 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -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;
+}
diff --git a/drivers/scsi/be2iscsi/be_mgmt.h b/drivers/scsi/be2iscsi/be_mgmt.h
index 9356b9a86b66..b58a7decbd94 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.h
+++ b/drivers/scsi/be2iscsi/be_mgmt.h
@@ -338,4 +338,7 @@ void beiscsi_ue_detect(struct beiscsi_hba *phba);
int be_cmd_modify_eq_delay(struct beiscsi_hba *phba,
struct be_set_eqd *, int num);
+int beiscsi_logout_fw_sess(struct beiscsi_hba *phba,
+ uint32_t fw_sess_handle);
+
#endif