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Message-ID: <20230109054742.ola6gafnn2ikyuqa@x260>
Date: Mon, 9 Jan 2023 08:47:42 +0300
From: Ivan Bornyakov <i.bornyakov@...rotek.ru>
To: linux-fpga@...r.kernel.org
Cc: Conor Dooley <conor.dooley@...rochip.com>,
Moritz Fischer <mdf@...nel.org>, Wu Hao <hao.wu@...el.com>,
Xu Yilun <yilun.xu@...el.com>, Tom Rix <trix@...hat.com>,
Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
linux-kernel@...r.kernel.org, system@...rotek.ru
Subject: Re: [PATCH v5 0/3] Reliability improvements for Microchip MPF FPGA
manager
On Fri, Dec 30, 2022 at 12:29:19PM +0300, Ivan Bornyakov wrote:
> A couple of reliability improvements for Microchip Polarfire FPGA
> manager:
> * move SPI I/O buffers out of stack
> * rewrite status polling routine in a time measurable way
>
> Also improve mpf_ops_write() code readability by separating single data
> frame writing routine.
>
> ChangeLog:
> v1:
> [https://lore.kernel.org/linux-fpga/20221223123854.8023-1-i.bornyakov@metrotek.ru/]
> v2:
> * split into 3 distinct patches
> [https://lore.kernel.org/linux-fpga/20221226142326.8111-1-i.bornyakov@metrotek.ru/]
> v3:
> * fix polling stop condition in mpf_poll_status() as Ilpo suggested.
> [https://lore.kernel.org/linux-fpga/20221227100450.2257-1-i.bornyakov@metrotek.ru/]
> v4:
> * more verbose comment for mpf_poll_status()
> [https://lore.kernel.org/linux-fpga/20221229104604.2496-1-i.bornyakov@metrotek.ru/]
> v5:
> * revord "fpga: microchip-spi: move SPI I/O buffers out of stack"
> commit message "Use allocated buffers" -> "Use cacheline aligned
> buffers"
> * drop __aligned(ARCH_KMALLOC_MINALIGN) attribute of struct mpf_priv
> member "rx". tx and rx are used synchronously by dma, they could
> share a cacheline.
>
> Ivan Bornyakov (3):
> fpga: microchip-spi: move SPI I/O buffers out of stack
> fpga: microchip-spi: rewrite status polling in a time measurable way
> fpga: microchip-spi: separate data frame write routine
>
> drivers/fpga/microchip-spi.c | 145 +++++++++++++++++++----------------
> 1 file changed, 79 insertions(+), 66 deletions(-)
>
> --
> 2.38.2
>
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