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author | John Soni Jose <sony.john-n@emulex.com> | 2015-04-25 08:18:13 +0530 |
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committer | James Bottomley <JBottomley@Odin.com> | 2015-05-25 08:55:41 -0700 |
commit | 3f4134c12af8d76eb87e12bc47dd33a4fb1555d8 (patch) | |
tree | 5567a3772d6ba7a8a99abd39cd8daa430d4d27e1 /drivers/scsi/be2iscsi/be_mgmt.c | |
parent | eb1c46924dfb48489272e8dc561bed9693e143d4 (diff) | |
download | linux-stable-3f4134c12af8d76eb87e12bc47dd33a4fb1555d8.tar.gz linux-stable-3f4134c12af8d76eb87e12bc47dd33a4fb1555d8.tar.bz2 linux-stable-3f4134c12af8d76eb87e12bc47dd33a4fb1555d8.zip |
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/be_mgmt.c')
-rw-r--r-- | drivers/scsi/be2iscsi/be_mgmt.c | 69 |
1 files changed, 69 insertions, 0 deletions
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; +} |