From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: Re: [PATCH V3 10/12] PCI: tegra: Add SW fixup for RAW violations Date: Thu, 14 Dec 2017 17:00:47 +0100 Message-ID: <20171214160047.GK13733@ulmo> References: <1509371843-22931-1-git-send-email-mmaddireddy@nvidia.com> <1509371843-22931-11-git-send-email-mmaddireddy@nvidia.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="BOhpupldhMlYbdva" Return-path: Content-Disposition: inline In-Reply-To: <1509371843-22931-11-git-send-email-mmaddireddy-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Manikanta Maddireddy Cc: bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, vidyas-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, mperttunen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kthota-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org List-Id: linux-tegra@vger.kernel.org --BOhpupldhMlYbdva Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Oct 30, 2017 at 07:27:21PM +0530, Manikanta Maddireddy wrote: > The logic which blocks read requests till AFI gets ACK for all outstanding > MC writes does not behave correctly when number of outstanding write > becomes more than 32. >=20 > SW fixup to prevent this issue is to limit outstanding posted writes and > tweak updateFC timer threshold. >=20 > Signed-off-by: Manikanta Maddireddy > --- > V3: > * changed soc parameter name > V2: > * no change in this patch >=20 > drivers/pci/host/pci-tegra.c | 30 ++++++++++++++++++++++++++++++ > 1 file changed, 30 insertions(+) Acked-by: Thierry Reding --BOhpupldhMlYbdva Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAloyoC8ACgkQ3SOs138+ s6EYeA/+KQIkffd4XNOpy3F1b750xtDvI09BFE3LB2g03gbceIPmfMEy8UBNz+Hs 4RjRN/ZwuYMme3WFk3Nv7ntV79f0/4447rBk6mlLOfDAMVLgmR6IRRz4JVAjbyhF NG2JBqAGvSe31DiuLIaMLeJlbiFGWq5fdC9XAg6ykgtrhPK6+UkuNgUltu4q1ufz qu6PCOKlTuKpm6MxQcm3gFXRuCS/oHguuEVOyJSBuKrcBMbjnP44ks+nW4yRqHdS 4ERtDCOH6Vc1UbK1x+Hp3Ebi2wQ0I/d5tn7oI++b3obXJzQUtTytFJIuPeAi8xFg VtunrL7iL4GEbNjO7IYh6NrK0GWaGYy2Q/U/t2/pIR3e/osMAviiIoD8HZiQx4/8 o4ILObyfYoUGaUh08OcCKkrsyCndNckSTAJ5VaJe5VLps6OoislRYXVrW3vZsIHs ciIipfcgT2DzlBJJZNF0CC+DLyQo6Trll+kZr4Sk8fwxeuigkJbGHhXEsqwB6Cwl H6YOqnHIzK6Ad56zpVxsrp0muYEfnPJvwjFZhjFDy7zp52A+aDYBno312igVxK+N PgN9tAf6nNL19DJ3p9Gt9bgjO+kUhkAEE8SCCRYxhFaww9W3M4VdbyB3N+u5qwFO UoEJrOWkgW6cUbT1TSc3f1Y8nBlOUEzoLFU3ucb2EZ+CHcuDurY= =z/uE -----END PGP SIGNATURE----- --BOhpupldhMlYbdva--