From: "Michał Krawczyk" <mk@semihalf.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: dev@dpdk.org, Marcin Wojtas <mw@semihalf.com>,
Maciej Bielski <mba@semihalf.com>,
"Tzalik, Guy" <gtzalik@amazon.com>,
"Schmeilin, Evgeny" <evgenys@amazon.com>,
"Chauskin, Igor" <igorch@amazon.com>
Subject: Re: [dpdk-dev] [PATCH v2 11/29] net/ena/base: use 48-bit memory addresses in ena_com
Date: Fri, 3 Apr 2020 14:14:44 +0200 [thread overview]
Message-ID: <CAJMMOfPtsV+2sRWT-ktZEQnMvpuYLb2tyqYbpj6beXdRwWjVcQ@mail.gmail.com> (raw)
In-Reply-To: <0c4c2200-d78f-0af0-2496-747f8629188b@intel.com>
czw., 2 kwi 2020 o 14:55 Ferruh Yigit <ferruh.yigit@intel.com> napisał(a):
>
> On 4/1/2020 3:21 PM, Michal Krawczyk wrote:
> > ENA device is using 48-bit memory for IO. because of that, the upper
> > limit had to be updated.
>
> What is the impact of this change, and what is the reason of the change? Can you
> please explain in the commit log?
>
It's just a cosmetic change in our case and to align it with what the
device is in fact doing. Structure 'ena_common_mem_addr' could be
misleading - it was defining 64 bits for address, while the device in
fact could read up to 48 bits.
This value (address) is being verified before being set in
'ena_com_mem_addr_set()' function, so the functionality remains still
the same.
I'll update the commit log in v3.
next prev parent reply other threads:[~2020-04-03 12:14 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-01 14:20 [dpdk-dev] [PATCH v2 00/29] Update ENA driver to v2.1.0 Michal Krawczyk
2020-04-01 14:20 ` [dpdk-dev] [PATCH v2 01/29] net/ena: check if size of buffer is at least 1400B Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 02/29] net/ena/base: make allocation macros thread-safe Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 03/29] net/ena/base: prevent allocation of 0-sized memory Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 04/29] net/ena/base: set default hash key Michal Krawczyk
2020-04-02 12:36 ` Ferruh Yigit
2020-04-03 11:10 ` Michał Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 05/29] net/ena/base: rework interrupt moderation Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 06/29] net/ena/base: remove extra properties strings Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 07/29] net/ena/base: add accelerated LLQ mode Michal Krawczyk
2020-04-02 12:41 ` Ferruh Yigit
2020-04-03 11:15 ` Michał Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 08/29] net/ena/base: fix documentation of the functions Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 09/29] net/ena/base: fix indentation in cq polling Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 10/29] net/ena/base: add error logs when preparing Tx Michal Krawczyk
2020-04-02 12:53 ` Ferruh Yigit
2020-04-03 11:31 ` Michał Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 11/29] net/ena/base: use 48-bit memory addresses in ena_com Michal Krawczyk
2020-04-02 12:55 ` Ferruh Yigit
2020-04-03 12:14 ` Michał Krawczyk [this message]
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 12/29] net/ena/base: fix types for printing timestamps Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 13/29] net/ena/base: fix indentation of multiple defines Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 14/29] net/ena/base: update gen date and commit Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 15/29] net/ena: set IO ring size to the valid value Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 16/29] net/ena: refactor getting IO queues capabilities Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 17/29] net/ena: add support for large LLQ headers Michal Krawczyk
2020-04-02 13:02 ` Ferruh Yigit
2020-04-03 12:15 ` Michał Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 18/29] net/ena: remove memory barriers before doorbells Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 19/29] net/ena: add Tx drops statistic Michal Krawczyk
2020-04-02 13:05 ` Ferruh Yigit
2020-04-03 12:30 ` Michał Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 20/29] net/ena: disable meta caching Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 21/29] net/ena: refactor Rx path Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 22/29] net/ena: rework getting number of available descs Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 23/29] net/ena: limit refill threshold by fixed value Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 24/29] net/ena: use macros for ring idx operations Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 25/29] net/ena: refactor Tx path Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 26/29] net/ena: reuse 0 length Rx descriptor Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 27/29] doc: add notes on ENA usage on metal instances Michal Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 28/29] net/ena: update copyright date Michal Krawczyk
2020-04-02 15:51 ` Ferruh Yigit
2020-04-03 12:31 ` Michał Krawczyk
2020-04-01 14:21 ` [dpdk-dev] [PATCH v2 29/29] net/ena: update version of the driver to v2.1.0 Michal Krawczyk
2020-04-02 15:53 ` Ferruh Yigit
2020-04-03 12:32 ` Michał Krawczyk
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