linux-kernel - Re: [RFC 1/6] bidi support: request dma_data

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <45B40458.9010107@torque.net>
Date:	Sun, 21 Jan 2007 19:24:56 -0500
From:	Douglas Gilbert <dougg@...que.net>
To:	Boaz Harrosh <bharrosh@...asas.com>
CC:	Jens Axboe <jens.axboe@...cle.com>,
	Christoph Hellwig <hch@...radead.org>,
	Mike Christie <michaelc@...wisc.edu>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	open-iscsi@...glegroups.com, Daniel.E.Messinger@...gate.com,
	Liran Schour <LIRANS@...ibm.com>,
	Benny Halevy <bhalevy@...asas.com>
Subject: Re: [RFC 1/6] bidi support: request dma_data_direction

Boaz Harrosh wrote:
> - Introduce a new enum dma_data_direction data_dir member in struct request.
>   and remove the RW bit from request->cmd_flag
> - Add new API to query request direction.
> - Adjust existing API and implementation.
> - Cleanup wrong use of DMA_BIDIRECTIONAL
> - Introduce new blk_rq_init_unqueued_req() and use it in places ad-hoc
>   requests were used and bzero'ed.

With a bi-directional transfer is it always unambiguous
which transfer occurs first (or could they occur at
the same time)?

Doug Gilbert
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/