From: David Miller <davem@davemloft.net>
To: akiyano@amazon.com
Cc: netdev@vger.kernel.org, dwmw@amazon.com, zorik@amazon.com,
matua@amazon.com, saeedb@amazon.com, msw@amazon.com,
aliguori@amazon.com, nafea@amazon.com, gtzalik@amazon.com,
netanel@amazon.com, alisaidi@amazon.com, benh@amazon.com,
ndagan@amazon.com, shayagr@amazon.com, sameehj@amazon.com,
eric.dumazet@gmail.com
Subject: Re: [PATCH V3 net-next 1/8] net: ena: avoid unnecessary rearming of interrupt vector when busy-polling
Date: Fri, 17 Jul 2020 12:52:27 -0700 (PDT) [thread overview]
Message-ID: <20200717.125227.55028219209538840.davem@davemloft.net> (raw)
In-Reply-To: <1594923010-6234-2-git-send-email-akiyano@amazon.com>
From: <akiyano@amazon.com>
Date: Thu, 16 Jul 2020 21:10:03 +0300
> To the best of my knowledge this assumption holds for ARM64 and x86_64
> architecture which use a MESI like cache coherency model.
Use the well defined kernel memory model correctly please.
This is no place for architectural assumptions. The memory model of
the kernel defines the rules, and in what locations various memory
barriers are required for correct operation.
Thank you.
next prev parent reply other threads:[~2020-07-17 19:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-16 18:10 [PATCH V3 net-next 0/8] ENA driver new features akiyano
2020-07-16 18:10 ` [PATCH V3 net-next 1/8] net: ena: avoid unnecessary rearming of interrupt vector when busy-polling akiyano
2020-07-17 0:52 ` Jakub Kicinski
2020-07-17 19:52 ` David Miller [this message]
2020-07-17 20:28 ` Bshara, Nafea
2020-07-16 18:10 ` [PATCH V3 net-next 2/8] net: ena: add reserved PCI device ID akiyano
2020-07-16 18:10 ` [PATCH V3 net-next 3/8] net: ena: cosmetic: satisfy gcc warning akiyano
2020-07-16 18:10 ` [PATCH V3 net-next 4/8] net: ena: cosmetic: change ena_com_stats_admin stats to u64 akiyano
2020-07-16 18:10 ` [PATCH V3 net-next 5/8] net: ena: add support for traffic mirroring akiyano
2020-07-16 18:10 ` [PATCH V3 net-next 6/8] net: ena: enable support of rss hash key and function changes akiyano
2020-07-16 18:10 ` [PATCH V3 net-next 7/8] net: ena: move llq configuration from ena_probe to ena_device_init() akiyano
2020-07-16 18:10 ` [PATCH V3 net-next 8/8] net: ena: support new LLQ acceleration mode akiyano
2020-07-21 13:38 [PATCH V3 net-next 0/8] ENA driver new features akiyano
2020-07-21 13:38 ` [PATCH V3 net-next 1/8] net: ena: avoid unnecessary rearming of interrupt vector when busy-polling akiyano
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