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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /drivers/scsi/iscsi_tcp.h | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'drivers/scsi/iscsi_tcp.h')
-rw-r--r-- | drivers/scsi/iscsi_tcp.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h new file mode 100644 index 00000000..666fe093 --- /dev/null +++ b/drivers/scsi/iscsi_tcp.h @@ -0,0 +1,68 @@ +/* + * iSCSI Initiator TCP Transport + * Copyright (C) 2004 Dmitry Yusupov + * Copyright (C) 2004 Alex Aizman + * Copyright (C) 2005 - 2006 Mike Christie + * Copyright (C) 2006 Red Hat, Inc. All rights reserved. + * maintained by open-iscsi@googlegroups.com + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * See the file COPYING included with this distribution for more details. + */ + +#ifndef ISCSI_SW_TCP_H +#define ISCSI_SW_TCP_H + +#include <scsi/libiscsi.h> +#include <scsi/libiscsi_tcp.h> + +struct socket; +struct iscsi_tcp_conn; + +/* Socket connection send helper */ +struct iscsi_sw_tcp_send { + struct iscsi_hdr *hdr; + struct iscsi_segment segment; + struct iscsi_segment data_segment; +}; + +struct iscsi_sw_tcp_conn { + struct socket *sock; + + struct iscsi_sw_tcp_send out; + /* old values for socket callbacks */ + void (*old_data_ready)(struct sock *, int); + void (*old_state_change)(struct sock *); + void (*old_write_space)(struct sock *); + + /* data and header digests */ + struct hash_desc tx_hash; /* CRC32C (Tx) */ + struct hash_desc rx_hash; /* CRC32C (Rx) */ + + /* MIB custom statistics */ + uint32_t sendpage_failures_cnt; + uint32_t discontiguous_hdr_cnt; + + ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int); +}; + +struct iscsi_sw_tcp_host { + struct iscsi_session *session; +}; + +struct iscsi_sw_tcp_hdrbuf { + struct iscsi_hdr hdrbuf; + char hdrextbuf[ISCSI_MAX_AHS_SIZE + + ISCSI_DIGEST_SIZE]; +}; + +#endif /* ISCSI_SW_TCP_H */ |