svn commit: r292740 - in head/sys: dev/cxgbe/cxgbei modules/cxgbe modules/cxgbe/cxgbei

Edward Tomasz Napierała trasz at FreeBSD.org
Sun Dec 27 22:09:01 UTC 2015


On 1226T0605, Navdeep Parhar wrote:
> Author: np
> Date: Sat Dec 26 06:05:21 2015
> New Revision: 292740
> URL: https://svnweb.freebsd.org/changeset/base/292740
> 
> Log:
>   cxgbei: Hardware accelerated iSCSI target and initiator for TOE capable
>   cards supported by cxgbe(4).
>   
>   On the host side this driver interfaces with the storage stack via the
>   ICL (iSCSI Common Layer) in the kernel.  On the wire the traffic is
>   standard iSCSI (SCSI over TCP as per RFC 3720/7143 etc.) that
>   interoperates with all other standards compliant implementations.  The
>   driver is layered on top of the TOE driver (t4_tom) and promotes
>   connections being handled by t4_tom to iSCSI ULP (Upper Layer Protocol)
>   mode.  Hardware assistance in this mode includes:
>   
>   - Full TCP processing.
>   - iSCSI PDU identification and recovery within the TCP stream.
>   - Header and/or data digest insertion (tx) and verification (rx).
>   - Zero copy (both tx and rx).
>   
>   Man page will follow in a separate commit in a couple of weeks.

Thank you!  :-)



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