/******************************************************************************* * This file contains the iSCSI Virtual Device and Disk Transport * agnostic related functions. * * (c) Copyright 2007-2013 Datera, Inc. * * Author: Nicholas A. Bellinger * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. ******************************************************************************/ #include #include #include #include "iscsi_target_device.h" #include "iscsi_target_tpg.h" #include "iscsi_target_util.h" void iscsit_determine_maxcmdsn(struct iscsi_session *sess) { struct se_node_acl *se_nacl; /* * This is a discovery session, the single queue slot was already * assigned in iscsi_login_zero_tsih(). Since only Logout and * Text Opcodes are allowed during discovery we do not have to worry * about the HBA's queue depth here. */ if (sess->sess_ops->SessionType) return; se_nacl = sess->se_sess->se_node_acl; /* * This is a normal session, set the Session's CmdSN window to the * struct se_node_acl->queue_depth. The value in struct se_node_acl->queue_depth * has already been validated as a legal value in * core_set_queue_depth_for_node(). */ sess->cmdsn_window = se_nacl->queue_depth; atomic_add(se_nacl->queue_depth - 1, &sess->max_cmd_sn); } void iscsit_increment_maxcmdsn(struct iscsi_cmd *cmd, struct iscsi_session *sess) { u32 max_cmd_sn; if (cmd->immediate_cmd || cmd->maxcmdsn_inc) return; cmd->maxcmdsn_inc = 1; max_cmd_sn = atomic_inc_return(&sess->max_cmd_sn); pr_debug("Updated MaxCmdSN to 0x%08x\n", max_cmd_sn); } EXPORT_SYMBOL(iscsit_increment_maxcmdsn); e4a111995'/>
path: root/include/rdma
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