74 lines
1.8 KiB
Go
74 lines
1.8 KiB
Go
/*
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Copyright 2015 The GoStor Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package scsi
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import (
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"fmt"
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"github.com/golang/glog"
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"github.com/gostor/gotgt/pkg/api"
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)
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func (s *SCSITargetService) NewSCSITarget(tid int, driverName, name string) (*api.SCSITarget, error) {
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// verify the target ID
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// verify the target's Name
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// verify the low level driver
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var target = &api.SCSITarget{
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Name: name,
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TID: tid,
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Devices: []*api.SCSILu{},
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}
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lun, err := NewSCSILu(0, target)
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if err != nil {
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glog.Errorf("fail to create LU: %v", err)
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return nil, err
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}
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s.mutex.Lock()
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target.Devices = append(target.Devices, lun)
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s.Targets = append(s.Targets, target)
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s.mutex.Unlock()
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return target, nil
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}
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func deviceReserve(cmd *api.SCSICommand) error {
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var lu *api.SCSILu
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for _, dev := range cmd.Target.Devices {
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if dev.Lun == cmd.Device.Lun {
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lu = dev
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break
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}
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}
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if lu == nil {
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glog.Errorf("invalid target and lun %d %s", cmd.Target.TID, cmd.Device.Lun)
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return nil
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}
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if lu.ReserveID != 0 && lu.ReserveID != cmd.CommandITNID {
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glog.Errorf("already reserved %d, %d", lu.ReserveID, cmd.CommandITNID)
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return fmt.Errorf("already reserved")
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}
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lu.ReserveID = cmd.CommandITNID
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return nil
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}
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func deviceRelease(tid int, itn, lun uint64, force bool) error {
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// TODO
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return nil
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}
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