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From: Lukas Wunner <lukas@wunner.de>
To: Emil Tantilov <emil.s.tantilov@intel.com>
Cc: intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
	przemyslaw.kitszel@intel.com, jay.bhat@intel.com,
	ivan.d.barrera@intel.com, aleksandr.loktionov@intel.com,
	larysa.zaremba@intel.com, anthony.l.nguyen@intel.com,
	andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com,
	kuba@kernel.org, pabeni@redhat.com, aleksander.lobakin@intel.com,
	linux-pci@vger.kernel.org, madhu.chittim@intel.com,
	decot@google.com, willemb@google.com, sheenamo@google.com
Subject: Re: [PATCH iwl-next v2 2/2] idpf: implement pci error handlers
Date: Tue, 14 Apr 2026 17:13:36 +0200	[thread overview]
Message-ID: <ad5ZoDCuSsPW0lKo@wunner.de> (raw)
In-Reply-To: <20260414031631.2107-3-emil.s.tantilov@intel.com>

On Mon, Apr 13, 2026 at 08:16:31PM -0700, Emil Tantilov wrote:
> +static pci_ers_result_t
> +idpf_pci_err_slot_reset(struct pci_dev *pdev)
> +{
> +	struct idpf_adapter *adapter = pci_get_drvdata(pdev);
> +
> +	pci_restore_state(pdev);
> +	pci_set_master(pdev);
> +	pci_wake_from_d3(pdev, false);
> +	if (readl(adapter->reset_reg.rstat) != 0xFFFFFFFF)
> +		return PCI_ERS_RESULT_RECOVERED;

FWIW, there's a PCI_POSSIBLE_ERROR() helper that you may find useful
to check for an "all ones" MMIO read.

Thanks,

Lukas

  parent reply	other threads:[~2026-04-14 15:13 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-14  3:16 [PATCH iwl-next v2 0/2] Introduce IDPF PCI callbacks Emil Tantilov
2026-04-14  3:16 ` [PATCH iwl-next v2 1/2] idpf: remove conditonal MBX deinit from idpf_vc_core_deinit() Emil Tantilov
2026-04-14 11:07   ` Loktionov, Aleksandr
2026-04-14 14:56     ` Tantilov, Emil S
2026-04-14  3:16 ` [PATCH iwl-next v2 2/2] idpf: implement pci error handlers Emil Tantilov
2026-04-14 11:09   ` Loktionov, Aleksandr
2026-04-14 15:01     ` Tantilov, Emil S
2026-04-15  8:53       ` Loktionov, Aleksandr
2026-04-14 15:10     ` Lukas Wunner
2026-04-14 21:42       ` Tantilov, Emil S
2026-04-14 15:13   ` Lukas Wunner [this message]
2026-04-14 21:43     ` Tantilov, Emil S

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