From: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
To: Matan Barak <matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Moni Shoua <monis-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Cc: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Yishai Hadas <yishaih-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Majd Dibbiny <majd-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: Re: [PATCH for-next 6/7] IB/mlx4: Create and use another QP1 for RoCEv2
Date: Tue, 29 Dec 2015 16:42:12 +0200 [thread overview]
Message-ID: <56829BC4.2070709@mellanox.com> (raw)
In-Reply-To: <1451395447-5198-7-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
On 12/29/2015 3:24 PM, Matan Barak wrote:
> The mlx4 driver uses a special QP to implement the GSI QP. This kind
> of QP allows to build the InfiniBand headers in SW to be put before
> the payload that comes in with the WR. The mlx4 HW builds the packet,
> calculates the ICRC and puts it at the end of the payload. This ICRC
> calculation however depends on the QP configuration which is
> determined when QP is modified (roce_mode during INIT->RTR).
> On the other hand, ICRC verification when packet is received does to
> depend on this configuration.
I don't understand the part of the sentence saying "when packet is
received does to depend on this configuration"
maybe some typo/s there?
> Therefore, using 2 GSI QPs for send (one for each RoCE version) and 1
> GSI QP for receive are required.
s/2/two/ and s/1/one/ please
Or.
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next prev parent reply other threads:[~2015-12-29 14:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-29 13:24 [PATCH for-next 0/7] Add RoCE v2 support for mlx4 driver Matan Barak
[not found] ` <1451395447-5198-1-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-29 13:24 ` [PATCH for-next 1/7] IB/mlx4: Query RoCE support Matan Barak
[not found] ` <1451395447-5198-2-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-29 15:19 ` Or Gerlitz
[not found] ` <5682A499.9040701-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-30 8:27 ` Matan Barak
[not found] ` <5683957B.1070401-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-30 8:44 ` Or Gerlitz
[not found] ` <5683997E.9090307-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-30 11:11 ` Matan Barak
2015-12-29 13:24 ` [PATCH for-next 2/7] IB/mlx4: Add RoCE per GID support for add_gid and del_gid Matan Barak
[not found] ` <1451395447-5198-3-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-29 15:24 ` Or Gerlitz
[not found] ` <5682A5AA.9040709-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-30 10:21 ` Matan Barak
2015-12-29 13:24 ` [PATCH for-next 3/7] IB/mlx4: Configure device to work in RoCEv2 Matan Barak
[not found] ` <1451395447-5198-4-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-29 14:37 ` Or Gerlitz
[not found] ` <56829AB0.3080805-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-30 8:23 ` Matan Barak
[not found] ` <56839469.3070508-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-30 8:46 ` Or Gerlitz
2015-12-29 13:24 ` [PATCH for-next 4/7] net/mlx4_core: Add handlning of RoCE v2 over IPV4 in attach_flow Matan Barak
[not found] ` <1451395447-5198-5-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-29 14:28 ` Or Gerlitz
2015-12-29 13:24 ` [PATCH for-next 5/7] IB/mlx4: Enable send of RoCE QP1 packets with IP/UDP headers Matan Barak
[not found] ` <1451395447-5198-6-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-29 19:01 ` Or Gerlitz
[not found] ` <CAJ3xEMgVvpj5S9gc_3onzCU5zjkXayOEZCCk_DofAwz194s8KQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-30 11:04 ` Moni Shoua
[not found] ` <CAG9sBKMOE1ULAnL=OWiSYc76vgi8jiuhnQxY3Li9NwGy3+r7oQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-31 7:04 ` Or Gerlitz
2015-12-29 13:24 ` [PATCH for-next 6/7] IB/mlx4: Create and use another QP1 for RoCEv2 Matan Barak
[not found] ` <1451395447-5198-7-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-29 14:42 ` Or Gerlitz [this message]
[not found] ` <56829BC4.2070709-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-30 8:24 ` Matan Barak
2015-12-29 13:24 ` [PATCH for-next 7/7] IB/mlx4: Advertise RoCE support Matan Barak
[not found] ` <1451395447-5198-8-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-29 14:44 ` Or Gerlitz
[not found] ` <56829C3D.5050009-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-30 8:25 ` Matan Barak
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