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f22d4bb63b
This patch adds support for kernel module namespaces. This patch is essential when using SCST in combination with kernel version v5.4 or later. git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8673 d57e44dd-8a1f-0410-8b47-8ef2f437770f
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/*
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* Copyright (c) 2010 Cisco Systems, Inc.
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*
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* This program is free software; you may redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <scsi/libfc.h>
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#include "fcst.h"
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unsigned int ft_debug_logging;
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module_param_named(debug_logging, ft_debug_logging, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(debug_logging, "log levels bigmask");
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DEFINE_MUTEX(ft_lport_lock);
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static struct notifier_block ft_notifier = {
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.notifier_call = ft_lport_notify
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};
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/*
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* SCST target ops and configuration.
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* XXX - re-check uninitialized fields
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*/
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struct scst_tgt_template ft_scst_template = {
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.sg_tablesize = 0xffff,
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.xmit_response_atomic = 1,
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.rdy_to_xfer_atomic = 1,
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.xmit_response = ft_send_response,
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.rdy_to_xfer = ft_send_xfer_rdy,
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.on_hw_pending_cmd_timeout = ft_cmd_timeout,
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.on_free_cmd = ft_cmd_free,
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.task_mgmt_fn_done = ft_cmd_tm_done,
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.release = ft_tgt_release,
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.report_aen = ft_report_aen,
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.enable_target = ft_tgt_enable,
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.is_target_enabled = ft_tgt_enabled,
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.get_initiator_port_transport_id = ft_get_transport_id,
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.max_hw_pending_time = FT_MAX_HW_PENDING_TIME,
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.name = FT_MODULE,
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};
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static int __init ft_module_init(void)
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{
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int err;
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err = scst_register_target_template(&ft_scst_template);
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if (err)
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return err;
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err = fc_fc4_register_provider(FC_TYPE_FCP, &ft_prov);
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if (err) {
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scst_unregister_target_template(&ft_scst_template);
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return err;
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}
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blocking_notifier_chain_register(&fc_lport_notifier_head, &ft_notifier);
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fc_lport_iterate(ft_lport_add, NULL);
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return 0;
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}
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static void __exit ft_module_exit(void)
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{
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rcu_barrier();
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blocking_notifier_chain_unregister(&fc_lport_notifier_head,
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&ft_notifier);
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fc_fc4_deregister_provider(FC_TYPE_FCP, &ft_prov);
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fc_lport_iterate(ft_lport_del, NULL);
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scst_unregister_target_template(&ft_scst_template);
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synchronize_rcu();
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}
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MODULE_AUTHOR("Joe Eykholt <jeykholt@cisco.com>");
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MODULE_DESCRIPTION("SCST FCoE target driver v" FT_VERSION);
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MODULE_LICENSE("GPL v2");
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MODULE_IMPORT_NS(SCST);
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module_init(ft_module_init);
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module_exit(ft_module_exit);
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