diff options
Diffstat (limited to 'drivers/scsi/cxgb3i/cxgb3i.h')
-rw-r--r-- | drivers/scsi/cxgb3i/cxgb3i.h | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/drivers/scsi/cxgb3i/cxgb3i.h b/drivers/scsi/cxgb3i/cxgb3i.h deleted file mode 100644 index e3133b58e594..000000000000 --- a/drivers/scsi/cxgb3i/cxgb3i.h +++ /dev/null | |||
@@ -1,161 +0,0 @@ | |||
1 | /* | ||
2 | * cxgb3i.h: Chelsio S3xx iSCSI driver. | ||
3 | * | ||
4 | * Copyright (c) 2008 Chelsio Communications, Inc. | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation. | ||
9 | * | ||
10 | * Written by: Karen Xie (kxie@chelsio.com) | ||
11 | */ | ||
12 | |||
13 | #ifndef __CXGB3I_H__ | ||
14 | #define __CXGB3I_H__ | ||
15 | |||
16 | #include <linux/module.h> | ||
17 | #include <linux/moduleparam.h> | ||
18 | #include <linux/errno.h> | ||
19 | #include <linux/types.h> | ||
20 | #include <linux/list.h> | ||
21 | #include <linux/netdevice.h> | ||
22 | #include <linux/scatterlist.h> | ||
23 | #include <linux/skbuff.h> | ||
24 | #include <scsi/libiscsi_tcp.h> | ||
25 | |||
26 | /* from cxgb3 LLD */ | ||
27 | #include "common.h" | ||
28 | #include "t3_cpl.h" | ||
29 | #include "t3cdev.h" | ||
30 | #include "cxgb3_ctl_defs.h" | ||
31 | #include "cxgb3_offload.h" | ||
32 | #include "firmware_exports.h" | ||
33 | |||
34 | #include "cxgb3i_offload.h" | ||
35 | #include "cxgb3i_ddp.h" | ||
36 | |||
37 | #define CXGB3I_SCSI_HOST_QDEPTH 1024 | ||
38 | #define CXGB3I_MAX_TARGET CXGB3I_MAX_CONN | ||
39 | #define CXGB3I_MAX_LUN 512 | ||
40 | #define ISCSI_PDU_NONPAYLOAD_MAX \ | ||
41 | (sizeof(struct iscsi_hdr) + ISCSI_MAX_AHS_SIZE + 2*ISCSI_DIGEST_SIZE) | ||
42 | |||
43 | struct cxgb3i_adapter; | ||
44 | struct cxgb3i_hba; | ||
45 | struct cxgb3i_endpoint; | ||
46 | |||
47 | /** | ||
48 | * struct cxgb3i_hba - cxgb3i iscsi structure (per port) | ||
49 | * | ||
50 | * @snic: cxgb3i adapter containing this port | ||
51 | * @ndev: pointer to netdev structure | ||
52 | * @shost: pointer to scsi host structure | ||
53 | */ | ||
54 | struct cxgb3i_hba { | ||
55 | struct cxgb3i_adapter *snic; | ||
56 | struct net_device *ndev; | ||
57 | struct Scsi_Host *shost; | ||
58 | }; | ||
59 | |||
60 | /** | ||
61 | * struct cxgb3i_adapter - cxgb3i adapter structure (per pci) | ||
62 | * | ||
63 | * @listhead: list head to link elements | ||
64 | * @lock: lock for this structure | ||
65 | * @tdev: pointer to t3cdev used by cxgb3 driver | ||
66 | * @pdev: pointer to pci dev | ||
67 | * @hba_cnt: # of hbas (the same as # of ports) | ||
68 | * @hba: all the hbas on this adapter | ||
69 | * @flags: bit flag for adapter event/status | ||
70 | * @tx_max_size: max. tx packet size supported | ||
71 | * @rx_max_size: max. rx packet size supported | ||
72 | * @tag_format: ddp tag format settings | ||
73 | */ | ||
74 | #define CXGB3I_ADAPTER_FLAG_RESET 0x1 | ||
75 | struct cxgb3i_adapter { | ||
76 | struct list_head list_head; | ||
77 | spinlock_t lock; | ||
78 | struct t3cdev *tdev; | ||
79 | struct pci_dev *pdev; | ||
80 | unsigned char hba_cnt; | ||
81 | struct cxgb3i_hba *hba[MAX_NPORTS]; | ||
82 | |||
83 | unsigned int flags; | ||
84 | unsigned int tx_max_size; | ||
85 | unsigned int rx_max_size; | ||
86 | |||
87 | struct cxgb3i_tag_format tag_format; | ||
88 | }; | ||
89 | |||
90 | /** | ||
91 | * struct cxgb3i_conn - cxgb3i iscsi connection | ||
92 | * | ||
93 | * @listhead: list head to link elements | ||
94 | * @cep: pointer to iscsi_endpoint structure | ||
95 | * @conn: pointer to iscsi_conn structure | ||
96 | * @hba: pointer to the hba this conn. is going through | ||
97 | * @task_idx_bits: # of bits needed for session->cmds_max | ||
98 | */ | ||
99 | struct cxgb3i_conn { | ||
100 | struct list_head list_head; | ||
101 | struct cxgb3i_endpoint *cep; | ||
102 | struct iscsi_conn *conn; | ||
103 | struct cxgb3i_hba *hba; | ||
104 | unsigned int task_idx_bits; | ||
105 | }; | ||
106 | |||
107 | /** | ||
108 | * struct cxgb3i_endpoint - iscsi tcp endpoint | ||
109 | * | ||
110 | * @c3cn: the h/w tcp connection representation | ||
111 | * @hba: pointer to the hba this conn. is going through | ||
112 | * @cconn: pointer to the associated cxgb3i iscsi connection | ||
113 | */ | ||
114 | struct cxgb3i_endpoint { | ||
115 | struct s3_conn *c3cn; | ||
116 | struct cxgb3i_hba *hba; | ||
117 | struct cxgb3i_conn *cconn; | ||
118 | }; | ||
119 | |||
120 | /** | ||
121 | * struct cxgb3i_task_data - private iscsi task data | ||
122 | * | ||
123 | * @nr_frags: # of coalesced page frags (from scsi sgl) | ||
124 | * @frags: coalesced page frags (from scsi sgl) | ||
125 | * @skb: tx pdu skb | ||
126 | * @offset: data offset for the next pdu | ||
127 | * @count: max. possible pdu payload | ||
128 | * @sgoffset: offset to the first sg entry for a given offset | ||
129 | */ | ||
130 | #define MAX_PDU_FRAGS ((ULP2_MAX_PDU_PAYLOAD + 512 - 1) / 512) | ||
131 | struct cxgb3i_task_data { | ||
132 | unsigned short nr_frags; | ||
133 | skb_frag_t frags[MAX_PDU_FRAGS]; | ||
134 | struct sk_buff *skb; | ||
135 | unsigned int offset; | ||
136 | unsigned int count; | ||
137 | unsigned int sgoffset; | ||
138 | }; | ||
139 | |||
140 | int cxgb3i_iscsi_init(void); | ||
141 | void cxgb3i_iscsi_cleanup(void); | ||
142 | |||
143 | struct cxgb3i_adapter *cxgb3i_adapter_find_by_tdev(struct t3cdev *); | ||
144 | void cxgb3i_adapter_open(struct t3cdev *); | ||
145 | void cxgb3i_adapter_close(struct t3cdev *); | ||
146 | |||
147 | struct cxgb3i_hba *cxgb3i_hba_host_add(struct cxgb3i_adapter *, | ||
148 | struct net_device *); | ||
149 | void cxgb3i_hba_host_remove(struct cxgb3i_hba *); | ||
150 | |||
151 | int cxgb3i_pdu_init(void); | ||
152 | void cxgb3i_pdu_cleanup(void); | ||
153 | void cxgb3i_conn_cleanup_task(struct iscsi_task *); | ||
154 | int cxgb3i_conn_alloc_pdu(struct iscsi_task *, u8); | ||
155 | int cxgb3i_conn_init_pdu(struct iscsi_task *, unsigned int, unsigned int); | ||
156 | int cxgb3i_conn_xmit_pdu(struct iscsi_task *); | ||
157 | |||
158 | void cxgb3i_release_itt(struct iscsi_task *task, itt_t hdr_itt); | ||
159 | int cxgb3i_reserve_itt(struct iscsi_task *task, itt_t *hdr_itt); | ||
160 | |||
161 | #endif | ||