From: Haggai Eran <haggaie-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
To: Matan Barak <matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Eli Cohen <eli-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Eran Ben Elisha <eranbe-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Yann Droneaud <ydroneaud-RlY5vtjFyJ3QT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH for-next V1 2/5] IB/core: Add ib_is_udata_cleared
Date: Mon, 7 Dec 2015 15:18:16 +0200 [thread overview]
Message-ID: <56658718.8080308@mellanox.com> (raw)
In-Reply-To: <1449157463-25313-3-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
On 12/03/2015 05:44 PM, Matan Barak wrote:
> Extending core and vendor verb commands require us to check that the
> unknown part of the user's given command is all zeros.
> Adding ib_is_udata_cleared in order to do so.
>
Why not copy the data into kernel space and run memchr_inv() on it?
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next prev parent reply other threads:[~2015-12-07 13:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-03 15:44 [PATCH for-next V1 0/5] User-space time-stamping support for mlx5_ib Matan Barak
[not found] ` <1449157463-25313-1-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-03 15:44 ` [PATCH for-next V1 1/5] IB/mlx5: Add create_cq extended command Matan Barak
2015-12-03 15:44 ` [PATCH for-next V1 2/5] IB/core: Add ib_is_udata_cleared Matan Barak
[not found] ` <1449157463-25313-3-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-07 13:18 ` Haggai Eran [this message]
[not found] ` <56658718.8080308-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-10 14:59 ` Matan Barak
[not found] ` <CAAKD3BC7bhKC+jKV3aH9W+pcBwV19PJZYwXdZue6hNew=CJW9g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-10 15:20 ` Haggai Eran
[not found] ` <5669983E.5000200-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-10 17:29 ` Matan Barak
[not found] ` <CAAKD3BDfobwroOnvoxPMTA5zL=wxY3KDL=FAvq5EdUOkFG_F+Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-13 15:47 ` Haggai Eran
[not found] ` <566D9315.9050807-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-14 16:31 ` Matan Barak
2015-12-15 14:13 ` Haggai Eran
2015-12-03 15:44 ` [PATCH for-next V1 3/5] IB/mlx5: Add support for hca_core_clock and timestamp_mask Matan Barak
2015-12-03 15:44 ` [PATCH for-next V1 4/5] IB/mlx5: Add hca_core_clock_offset to udata in init_ucontext Matan Barak
2015-12-03 15:44 ` [PATCH for-next V1 5/5] IB/mlx5: Mmap the HCA's core clock register to user-space Matan Barak
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