cxgbi iscsi driver

[PATCH v4 0/3] cxgbi iscsi driver

From: Karen Xie <[email protected]>

This patchset includes:

1. added libcxgbi as the common library for both cxgb4i and cxgb3i driver
2. added cxgb4i iscsi initiator v5.
3. changed cxgb3i to use libcxgbi.

Version 4 changes:
- removed directory drivers/scsi/cxgb3i. The updated cxgb3i driver is under drivers/scsi/cxgbi/cxgb3i.

Version 3 changes:
- re-worked defines of xxx_log_error/warn/info/debug to get rid of double indirection.

Version 2 changes:
- Made dbg_level static to avoid compiling errors when both cxgb3i and cxgb4i are built into the kernel.
- Deleted cxgbi_fill_iscsi_transport() and cxgbi_fill_scsi_host_template(). The iscsi_transport and scsi_host_template are initialized in the drivers instead of being filled in by the library at runtime..
- Only register with iscsi class transport once per driver type.

Thanks.
Karen