All of lore.kernel.org
 help / color / mirror / Atom feed
From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Cc: andreas.noever@gmail.com, westeri@kernel.org,
	YehezkelShB@gmail.com, linux-usb@vger.kernel.org,
	Mario.Limonciello@amd.com, Sanath S <Sanath.S@amd.com>
Subject: Re: [PATCH -next v3] thunderbolt: Add quirk to reset host interface on DMA path teardown for AMD USB4 routers
Date: Fri, 7 Aug 2026 08:16:28 +0200	[thread overview]
Message-ID: <20260807061628.GK235112@black.igk.intel.com> (raw)
In-Reply-To: <20260806125929.1238914-1-Basavaraj.Natikar@amd.com>

Hi,

On Thu, Aug 06, 2026 at 06:29:29PM +0530, Basavaraj Natikar wrote:
> Some AMD USB4 host routers have a bug in the Host Interface where
> DMA path setup and teardown cycles may cause the Tx ring to hang.
> 
> Fix this by issuing a Host Interface Reset on every DMA path teardown
> for affected routers. The Host Interface Reset brings the registers in
> the memory BAR to their default state and clears the End-to-End Flow
> Control state, preventing the hang condition.
> 
> Co-developed-by: Sanath S <Sanath.S@amd.com>
> Signed-off-by: Sanath S <Sanath.S@amd.com>
> Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>

I did few minor cosmetic tweaks and applied to thunderbolt.git/next,
thanks!

  reply	other threads:[~2026-08-07  6:21 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-06 12:59 [PATCH -next v3] thunderbolt: Add quirk to reset host interface on DMA path teardown for AMD USB4 routers Basavaraj Natikar
2026-08-07  6:16 ` Mika Westerberg [this message]
2026-08-07  8:13   ` Basavaraj Natikar

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20260807061628.GK235112@black.igk.intel.com \
    --to=mika.westerberg@linux.intel.com \
    --cc=Basavaraj.Natikar@amd.com \
    --cc=Mario.Limonciello@amd.com \
    --cc=Sanath.S@amd.com \
    --cc=YehezkelShB@gmail.com \
    --cc=andreas.noever@gmail.com \
    --cc=linux-usb@vger.kernel.org \
    --cc=westeri@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.