/* cxgb3i_init.c: Chelsio S3xx iSCSI driver.
*
* Copyright (c) 2008 Chelsio Communications, Inc.
*
* 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.
*
* Written by: Karen Xie (kxie@chelsio.com)
*/
#include "cxgb3i.h"
#define DRV_MODULE_NAME "cxgb3i"
#define DRV_MODULE_VERSION "1.0.2"
#define DRV_MODULE_RELDATE "Mar. 2009"
static char version[] =
"Chelsio S3xx iSCSI Driver " DRV_MODULE_NAME
" v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("Karen Xie <kxie@chelsio.com>");
MODULE_DESCRIPTION("Chelsio S3xx iSCSI Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);
static void open_s3_dev(struct t3cdev *);
static void close_s3_dev(struct t3cdev *);
static void s3_err_handler(struct t3cdev *tdev, u32 status, u32 error);
static cxgb3_cpl_handler_func cxgb3i_cpl_handlers[NUM_CPL_CMDS];
static struct cxgb3_client t3c_client = {
.name = "iscsi_cxgb3",
.handlers = cxgb3i_cpl_handlers,
.add = open_s3_dev,
.remove = close_s3_dev,
.err_handler = s3_err_handler,
};
/**
* open_s3_dev - register with cxgb3 LLD
* @t3dev: cxgb3 adapter instance
*/
static void open_s3_dev(struct t3cdev *t3dev)
{
static int vers_printed;
if (!vers_printed) {
printk(KERN_INFO "%s", version);
vers_printed = 1;
}
cxgb3i_ddp_init(t3dev);
cxgb3i_sdev_add(t3dev, &t3c_client);
cxgb3i_adapter_open(t3dev);
}
/**
* close_s3_dev - de-register with cxgb3 LLD
* @t3dev: cxgb3 adapter instance
*/
static void close_s3_dev(struct t3cdev *t3dev)
{
cxgb3i_adapter_close(t3dev);
cxgb3i_sdev_remove(t3dev);
cxgb3i_ddp_cleanup(t3dev);
}
static void s3_err_handler(struct t3cdev *tdev, u32 status, u32 error)
{
struct cxgb3i_adapter *snic = cxgb3i_adapter_find_by_tdev(tdev);
cxgb3i_log_info("snic 0x%p, tdev 0x%p, status 0x%x, err 0x%x.\n",
snic, tdev, status, error);
if (!snic)
return;
switch (status) {
case OFFLOAD_STATUS_DOWN:
snic->flags |= CXGB3I_ADAPTER_FLAG_RESET;
break;
case OFFLOAD_STATUS_UP:
snic->flags &= ~CXGB3I_ADAPTER_FLAG_RESET;
break;
}
}
/**
* cxgb3i_init_module - module init entry point
*
* initialize any driver wide global data structures and register itself
* with the cxgb3 module
*/
static int __init cxgb3i_init_module(void)
{
int err;
err = cxgb3i_sdev_init(cxgb3i_cpl_handlers);
if (err < 0)
return err;
err = cxgb3i_iscsi_init();
if (err < 0)
return err;
err = cxgb3i_pdu_init();
if (err < 0)
return err;
cxgb3_register_client(&t3c_client);
return 0;
}
/**
* cxgb3i_exit_module - module cleanup/exit entry point
*
* go through the driver hba list and for each hba, release any resource held.
* and unregisters iscsi transport and the cxgb3 module
*/
static void __exit cxgb3i_exit_module(void)
{
cxgb3_unregister_client(&t3c_client);
cxgb3i_pdu_cleanup();
cxgb3i_iscsi_cleanup();
cxgb3i_sdev_cleanup();
}
module_init(cxgb3i_init_module);
module_exit(cxgb3i_exit_module);
