diff options
| author | kxie@chelsio.com <kxie@chelsio.com> | 2010-08-16 20:55:53 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-09-05 14:29:07 -0300 |
| commit | 7b36b6e03b0d6cee0948593a6a11841a457695b9 (patch) | |
| tree | 6f68fa74acde025eb0759ada09b89697d61c5f54 /drivers/scsi/cxgbi/cxgb4i/cxgb4i.h | |
| parent | 9ba682f01e2ffe47e6ea47fcc6cdfe39d7a71571 (diff) | |
[SCSI] cxgb4i v5: iscsi driver
Added cxgb4i iSCSI driver.
This patch implements the cxgb4i iscsi connection acceleration for the
open-iscsi initiator.
The cxgb4i driver offers the iscsi PDU based offload:
- digest insertion and verification
- payload direct-placement into host memory buffer.
Signed-off-by: Karen Xie <kxie@chelsio.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/cxgbi/cxgb4i/cxgb4i.h')
| -rw-r--r-- | drivers/scsi/cxgbi/cxgb4i/cxgb4i.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h new file mode 100644 index 000000000000..342263b1f542 --- /dev/null +++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h @@ -0,0 +1,38 @@ +/* + * cxgb4i.h: Chelsio T4 iSCSI driver. + * + * Copyright (c) 2010 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) + * Written by: Rakesh Ranjan (rranjan@chelsio.com) + */ + +#ifndef __CXGB4I_H__ +#define __CXGB4I_H__ + +#define CXGB4I_SCSI_HOST_QDEPTH 1024 +#define CXGB4I_MAX_CONN 16384 +#define CXGB4I_MAX_TARGET CXGB4I_MAX_CONN +#define CXGB4I_MAX_LUN 0x1000 + +/* for TX: a skb must have a headroom of at least TX_HEADER_LEN bytes */ +#define CXGB4I_TX_HEADER_LEN \ + (sizeof(struct fw_ofld_tx_data_wr) + sizeof(struct sge_opaque_hdr)) + +struct cpl_rx_data_ddp { + union opcode_tid ot; + __be16 urg; + __be16 len; + __be32 seq; + union { + __be32 nxt_seq; + __be32 ddp_report; + }; + __be32 ulp_crc; + __be32 ddpvld; +}; +#endif /* __CXGB4I_H__ */ |