projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| c3673464 KX |
1 | /* cxgb3i_init.c: Chelsio S3xx iSCSI driver. |
| 2 | * | |
| 3 | * Copyright (c) 2008 Chelsio Communications, Inc. | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify | |
| 6 | * it under the terms of the GNU General Public License as published by | |
| 7 | * the Free Software Foundation. | |
| 8 | * | |
| 9 | * Written by: Karen Xie (kxie@chelsio.com) | |
| 10 | */ | |
| 11 | ||
| 12 | #include "cxgb3i.h" | |
| 13 | ||
| 14 | #define DRV_MODULE_NAME "cxgb3i" | |
| 0d0c27f2 KX |
15 | #define DRV_MODULE_VERSION "1.0.2" |
| 16 | #define DRV_MODULE_RELDATE "Mar. 2009" | |
| c3673464 KX |
17 | |
| 18 | static char version[] = | |
| 19 | "Chelsio S3xx iSCSI Driver " DRV_MODULE_NAME | |
| 20 | " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; | |
| 21 | ||
| 22 | MODULE_AUTHOR("Karen Xie <kxie@chelsio.com>"); | |
| 23 | MODULE_DESCRIPTION("Chelsio S3xx iSCSI Driver"); | |
| 24 | MODULE_LICENSE("GPL"); | |
| 25 | MODULE_VERSION(DRV_MODULE_VERSION); | |
| 26 | ||
| 27 | static void open_s3_dev(struct t3cdev *); | |
| 28 | static void close_s3_dev(struct t3cdev *); | |
| fa0d4c11 | 29 | static void s3_event_handler(struct t3cdev *tdev, u32 event, u32 port); |
| c3673464 KX |
30 | |
| 31 | static cxgb3_cpl_handler_func cxgb3i_cpl_handlers[NUM_CPL_CMDS]; | |
| 32 | static struct cxgb3_client t3c_client = { | |
| 33 | .name = "iscsi_cxgb3", | |
| 34 | .handlers = cxgb3i_cpl_handlers, | |
| 35 | .add = open_s3_dev, | |
| 36 | .remove = close_s3_dev, | |
| fa0d4c11 | 37 | .event_handler = s3_event_handler, |
| c3673464 KX |
38 | }; |
| 39 | ||
| 40 | /** | |
| 41 | * open_s3_dev - register with cxgb3 LLD | |
| 42 | * @t3dev: cxgb3 adapter instance | |
| 43 | */ | |
| 44 | static void open_s3_dev(struct t3cdev *t3dev) | |
| 45 | { | |
| 46 | static int vers_printed; | |
| 47 | ||
| 48 | if (!vers_printed) { | |
| 49 | printk(KERN_INFO "%s", version); | |
| 50 | vers_printed = 1; | |
| 51 | } | |
| 52 | ||
| 0d0c27f2 | 53 | cxgb3i_ddp_init(t3dev); |
| c3673464 | 54 | cxgb3i_sdev_add(t3dev, &t3c_client); |
| 515f1c88 | 55 | cxgb3i_adapter_open(t3dev); |
| c3673464 KX |
56 | } |
| 57 | ||
| 58 | /** | |
| 59 | * close_s3_dev - de-register with cxgb3 LLD | |
| 60 | * @t3dev: cxgb3 adapter instance | |
| 61 | */ | |
| 62 | static void close_s3_dev(struct t3cdev *t3dev) | |
| 63 | { | |
| 515f1c88 | 64 | cxgb3i_adapter_close(t3dev); |
| c3673464 | 65 | cxgb3i_sdev_remove(t3dev); |
| 0d0c27f2 | 66 | cxgb3i_ddp_cleanup(t3dev); |
| c3673464 KX |
67 | } |
| 68 | ||
| fa0d4c11 | 69 | static void s3_event_handler(struct t3cdev *tdev, u32 event, u32 port) |
| 515f1c88 KX |
70 | { |
| 71 | struct cxgb3i_adapter *snic = cxgb3i_adapter_find_by_tdev(tdev); | |
| 72 | ||
| fa0d4c11 SW |
73 | cxgb3i_log_info("snic 0x%p, tdev 0x%p, event 0x%x, port 0x%x.\n", |
| 74 | snic, tdev, event, port); | |
| 515f1c88 KX |
75 | if (!snic) |
| 76 | return; | |
| 77 | ||
| fa0d4c11 | 78 | switch (event) { |
| 515f1c88 KX |
79 | case OFFLOAD_STATUS_DOWN: |
| 80 | snic->flags |= CXGB3I_ADAPTER_FLAG_RESET; | |
| 81 | break; | |
| 82 | case OFFLOAD_STATUS_UP: | |
| 83 | snic->flags &= ~CXGB3I_ADAPTER_FLAG_RESET; | |
| 84 | break; | |
| 85 | } | |
| 86 | } | |
| 87 | ||
| c3673464 KX |
88 | /** |
| 89 | * cxgb3i_init_module - module init entry point | |
| 90 | * | |
| 91 | * initialize any driver wide global data structures and register itself | |
| 92 | * with the cxgb3 module | |
| 93 | */ | |
| 94 | static int __init cxgb3i_init_module(void) | |
| 95 | { | |
| 96 | int err; | |
| 97 | ||
| 98 | err = cxgb3i_sdev_init(cxgb3i_cpl_handlers); | |
| 99 | if (err < 0) | |
| 100 | return err; | |
| 101 | ||
| 102 | err = cxgb3i_iscsi_init(); | |
| 103 | if (err < 0) | |
| 104 | return err; | |
| 105 | ||
| 106 | err = cxgb3i_pdu_init(); | |
| 107 | if (err < 0) | |
| 108 | return err; | |
| 109 | ||
| 110 | cxgb3_register_client(&t3c_client); | |
| 111 | ||
| 112 | return 0; | |
| 113 | } | |
| 114 | ||
| 115 | /** | |
| 116 | * cxgb3i_exit_module - module cleanup/exit entry point | |
| 117 | * | |
| 118 | * go through the driver hba list and for each hba, release any resource held. | |
| 119 | * and unregisters iscsi transport and the cxgb3 module | |
| 120 | */ | |
| 121 | static void __exit cxgb3i_exit_module(void) | |
| 122 | { | |
| 123 | cxgb3_unregister_client(&t3c_client); | |
| 124 | cxgb3i_pdu_cleanup(); | |
| 125 | cxgb3i_iscsi_cleanup(); | |
| 126 | cxgb3i_sdev_cleanup(); | |
| 127 | } | |
| 128 | ||
| 129 | module_init(cxgb3i_init_module); | |
| 130 | module_exit(cxgb3i_exit_module); |