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Fri, 10 Jan 2025 09:45:54 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id uL//J1LsgGenGAAAD6G6ig (envelope-from ); Fri, 10 Jan 2025 09:45:54 +0000 Date: Fri, 10 Jan 2025 10:45:54 +0100 Message-ID: <87ldvjuhm5.wl-tiwai@suse.de> From: Takashi Iwai To: Mika Westerberg Cc: Bjorn Helgaas , Takashi Iwai , Ilpo =?ISO-8859-1?Q?J=E4rvinen?= , Kuppuswamy Sathyanarayanan , Keith Busch , Bjorn Helgaas , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] PCI/DPC: Yet another quirk for PIO log size on Intel Raptor Lake-P In-Reply-To: <20250105082520.GT3713119@black.fi.intel.com> References: <20250102164315.7562-1-tiwai@suse.de> <20250103225315.GA12322@bhelgaas> <20250105082520.GT3713119@black.fi.intel.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/27.2 Mule/6.0 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Rspamd-Queue-Id: E82DC1F394 X-Spam-Level: X-Spamd-Result: default: False [-3.51 / 50.00]; BAYES_HAM(-3.00)[99.99%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; ARC_NA(0.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; MIME_TRACE(0.00)[0:+]; FROM_HAS_DN(0.00)[]; RCVD_TLS_ALL(0.00)[]; DKIM_TRACE(0.00)[suse.de:+]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; TO_DN_SOME(0.00)[]; RCPT_COUNT_SEVEN(0.00)[9]; ASN(0.00)[asn:25478, ipnet:::/0, country:RU]; RCVD_VIA_SMTP_AUTH(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:dkim,suse.de:mid] X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Action: no action X-Spam-Score: -3.51 X-Spam-Flag: NO On Sun, 05 Jan 2025 09:25:20 +0100, Mika Westerberg wrote: > > Hi, > > On Fri, Jan 03, 2025 at 04:53:15PM -0600, Bjorn Helgaas wrote: > > On Thu, Jan 02, 2025 at 05:43:13PM +0100, Takashi Iwai wrote: > > > There is yet another PCI entry for Intel Raptor Lake-P that shows the > > > error "DPC: RP PIO log size 0 is invalid": > > > 0000:00:07.0 PCI bridge [0604]: Intel Corporation Raptor Lake-P Thunderbolt 4 PCI Express Root Port #0 [8086:a76e] > > > 0000:00:07.2 PCI bridge [0604]: Intel Corporation Raptor Lake-P Thunderbolt 4 PCI Express Root Port #2 [8086:a72f] > > > > > > Add the corresponding quirk entry for 8086:a72f. > > > > > > Note that the one for 8086:a76e has been already added by the commit > > > 627c6db20703 ("PCI/DPC: Quirk PIO log size for Intel Raptor Lake Root > > > Ports"). > > > > Intel folks, what's the long-term resolution of this? I'm kind of > > tired of adding quirks like this. So far we have these (not including > > the current patch), dating back to Aug 2022: > > > > 627c6db20703 ("PCI/DPC: Quirk PIO log size for Intel Raptor Lake Root Ports") > > 3b8803494a06 ("PCI/DPC: Quirk PIO log size for Intel Ice Lake Root Ports") > > 5459c0b70467 ("PCI/DPC: Quirk PIO log size for certain Intel Root Ports") > > > > I *thought* this problem was caused by BIOS defects that were supposed > > to be fixed, but nothing seems to be happening. > > As far as I know it should be fixed already. I just checked my MTLP and PTL > systems (both with integrated TBT PCIe root ports) and I don't see the > message anymore. I don't have RPL system though. This is on reference > hardware and BIOS so it is possible that the fix has not been taken into > the OEM BIOS. The reporter verified that the issue persists with the latest BIOS. Sigh. Takashi