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From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
To: "Pali Rohár" <pali@kernel.org>
Cc: "Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
	"Rob Herring" <robh@kernel.org>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Russell King" <rmk+kernel@armlinux.org.uk>,
	"Marek Behún" <kabel@kernel.org>,
	"Remi Pommarel" <repk@triplefau.lt>, Xogium <contact@xogium.me>,
	"Tomasz Maciej Nowak" <tmn505@gmail.com>,
	"Marc Zyngier" <maz@kernel.org>,
	linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 00/42] PCI: aardvark: Various driver fixes
Date: Thu, 3 Jun 2021 16:16:05 +0100	[thread overview]
Message-ID: <20210603151605.GA18917@lpieralisi> (raw)
In-Reply-To: <20210506153153.30454-1-pali@kernel.org>

On Thu, May 06, 2021 at 05:31:11PM +0200, Pali Rohár wrote:
> This patch series fixes various issues in pci-aardvark.c driver
> (PCIe controller on Marvell Armada 3700 SoC) used on Espressobin
> and Turris Mox.
> 
> First patch fixes kernel panic (or TF-A panic depending on used
> firmware) during execution of PIO transfer and I would suggest to
> include this fix into v5.13 release to prevent future kernel panics.
> 
> Other patches then fixes PIO issues, PCIe link training, initialization
> of PCIe controller, accessing PCIe Root Bridge/Port registers, handling
> of interrupts (including ERR and PME), setup of Multi-MSI interrupts,
> adding support for masking MSI interrupts, adding support for more than
> 32 MSI interrupts with MSI-X support, and adding support for AER.
> 
> Note that there are still some unresolved issues with PCIe on A3720.
> I asked Marvell for PCIe documentation or explanations but I have not
> received anything (yet).
> 
> Patch "Fix checking for PIO status" is taken from the Marvell github fork
> and adapted for inclusion into mainline kernel:
> https://github.com/MarvellEmbeddedProcessors/linux-marvell/commit/84444d22023c
> 
> Whole patch series is available also in my git branch pci-aardvark:
> https://git.kernel.org/pub/scm/linux/kernel/git/pali/linux.git/log/?h=pci-aardvark
> 
> If you have Espressobin, Turris Mox or other A3720 board with PCIe
> please test this patch series with your favourite PCIe card if
> everything is working fine.
> 
> Evan Wang (1):
>   PCI: aardvark: Fix checking for PIO status
> 
> Pali Rohár (39):
>   PCI: aardvark: Fix kernel panic during PIO transfer
>   PCI: aardvark: Fix checking for PIO Non-posted Request
>   PCI: aardvark: Increase polling delay to 1.5s while waiting for PIO
>     response
>   PCI: pci-bridge-emul: Add PCIe Root Capabilities Register
>   PCI: aardvark: Fix reporting CRS Software Visibility on emulated
>     bridge
>   PCI: aardvark: Fix link training
>   PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
>   PCI: aardvark: Fix PCIe Max Payload Size setting
>   PCI: aardvark: Implement workaround for the readback value of VEND_ID
>   PCI: aardvark: Do not touch status bits of masked interrupts in
>     interrupt handler
>   PCI: aardvark: Check for virq mapping when processing INTx IRQ
>   PCI: aardvark: Remove irq_mask_ack callback for INTx interrupts
>   PCI: aardvark: Don't mask irq when mapping
>   PCI: aardvark: Change name of INTx irq_chip to advk-INT
>   PCI: aardvark: Remove unneeded goto
>   PCI: aardvark: Fix support for MSI interrupts
>   PCI: aardvark: Correctly clear and unmask all MSI interrupts
>   PCI: aardvark: Fix setting MSI address
>   PCI: aardvark: Add support for more than 32 MSI interrupts
>   PCI: aardvark: Add support for masking MSI interrupts
>   PCI: aardvark: Enable MSI-X support
>   PCI: aardvark: Fix support for ERR interrupt on emulated bridge
>   PCI: aardvark: Fix support for PME on emulated bridge
>   PCI: aardvark: Fix support for PME requester on emulated bridge
>   PCI: aardvark: Fix support for bus mastering and PCI_COMMAND on
>     emulated bridge
>   PCI: aardvark: Disable bus mastering and mask all interrupts when
>     unbinding driver
>   PCI: aardvark: Free config space for emulated root bridge when
>     unbinding driver to fix memory leak
>   PCI: aardvark: Reset PCIe card and disable PHY when unbinding driver
>   PCI: aardvark: Rewrite irq code to chained irq handler
>   PCI: aardvark: Use separate INTA interrupt for emulated root bridge
>   PCI: pci-bridge-emul: Add description for class_revision field
>   PCI: pci-bridge-emul: Add definitions for missing capabilities
>     registers
>   PCI: aardvark: Add support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2
>     registers on emulated bridge
>   PCI: aardvark: Add support for PCI_BRIDGE_CTL_BUS_RESET on emulated
>     bridge
>   PCI: aardvark: Replace custom PCIE_CORE_ERR_CAPCTL_* macros by
>     linux/pci_regs.h macros
>   PCI: aardvark: Replace custom PCIE_CORE_INT_* macros by linux
>     PCI_INTERRUPT_* values
>   PCI: aardvark: Cleanup some register macros
>   PCI: aardvark: Add comments for OB_WIN_ENABLE and ADDR_WIN_DISABLE
>   PCI: aardvark: Add support for Advanced Error Reporting registers on
>     emulated bridge
> 
> Russell King (2):
>   PCI: pci-bridge-emul: re-arrange register tests
>   PCI: pci-bridge-emul: add support for PCIe extended capabilities
> 
>  drivers/pci/controller/pci-aardvark.c | 980 +++++++++++++++++++-------
>  drivers/pci/pci-bridge-emul.c         | 149 ++--
>  drivers/pci/pci-bridge-emul.h         |  17 +-
>  include/uapi/linux/pci_regs.h         |   6 +
>  4 files changed, 850 insertions(+), 302 deletions(-)

May I ask you please to split this series in smaller sets so that
it is easier to merge ?

Let's start with the more urgent fixes that don't involve rework (or
you have not received change requests for since they are simple).

Thanks,
Lorenzo

  parent reply	other threads:[~2021-06-03 15:16 UTC|newest]

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-06 15:31 Pali Rohár
2021-05-06 15:31 ` [PATCH 01/42] PCI: aardvark: Fix kernel panic during PIO transfer Pali Rohár
2021-05-19  8:06   ` Pali Rohár
2021-05-06 15:31 ` [PATCH 02/42] PCI: aardvark: Fix checking for PIO Non-posted Request Pali Rohár
2021-05-06 15:31 ` [PATCH 03/42] PCI: aardvark: Fix checking for PIO status Pali Rohár
2021-05-06 15:31 ` [PATCH 04/42] PCI: aardvark: Increase polling delay to 1.5s while waiting for PIO response Pali Rohár
2021-05-06 15:31 ` [PATCH 05/42] PCI: pci-bridge-emul: Add PCIe Root Capabilities Register Pali Rohár
2021-05-06 23:10   ` Bjorn Helgaas
2021-05-07 14:40     ` Pali Rohár
2021-05-07 16:41       ` Bjorn Helgaas
2021-05-06 15:31 ` [PATCH 06/42] PCI: aardvark: Fix reporting CRS Software Visibility on emulated bridge Pali Rohár
2021-05-07 13:03   ` Bjorn Helgaas
2021-05-07 15:25     ` Pali Rohár
2021-05-07 15:33     ` Pali Rohár
2021-05-06 15:31 ` [PATCH 07/42] PCI: aardvark: Fix link training Pali Rohár
2021-05-06 15:31 ` [PATCH 08/42] PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros Pali Rohár
2021-05-06 15:31 ` [PATCH 09/42] PCI: aardvark: Fix PCIe Max Payload Size setting Pali Rohár
2021-05-06 15:31 ` [PATCH 10/42] PCI: aardvark: Implement workaround for the readback value of VEND_ID Pali Rohár
2021-05-06 15:31 ` [PATCH 11/42] PCI: aardvark: Do not touch status bits of masked interrupts in interrupt handler Pali Rohár
2021-05-06 15:31 ` [PATCH 12/42] PCI: aardvark: Check for virq mapping when processing INTx IRQ Pali Rohár
2021-05-07  9:15   ` Marc Zyngier
2021-06-04 16:24     ` Pali Rohár
2021-06-04 16:29       ` Marc Zyngier
2021-05-06 15:31 ` [PATCH 13/42] PCI: aardvark: Remove irq_mask_ack callback for INTx interrupts Pali Rohár
2021-05-07  9:16   ` Marc Zyngier
2021-05-06 15:31 ` [PATCH 14/42] PCI: aardvark: Don't mask irq when mapping Pali Rohár
2021-05-07  9:20   ` Marc Zyngier
2021-05-07  9:27     ` Pali Rohár
2021-05-06 15:31 ` [PATCH 15/42] PCI: aardvark: Change name of INTx irq_chip to advk-INT Pali Rohár
2021-05-07  9:08   ` Marc Zyngier
2021-05-24 14:36     ` Marek Behún
2021-05-24 15:14       ` Marc Zyngier
2021-05-06 15:31 ` [PATCH 16/42] PCI: aardvark: Remove unneeded goto Pali Rohár
2021-05-06 15:31 ` [PATCH 17/42] PCI: aardvark: Fix support for MSI interrupts Pali Rohár
2021-05-07 10:16   ` Marc Zyngier
2021-05-07 14:44     ` Pali Rohár
2021-05-07 16:24       ` Marc Zyngier
2021-06-04 16:02         ` Pali Rohár
2021-06-04 16:22           ` Marc Zyngier
2021-05-06 15:31 ` [PATCH 18/42] PCI: aardvark: Correctly clear and unmask all " Pali Rohár
2021-05-07 10:19   ` Marc Zyngier
2021-05-07 10:21     ` Pali Rohár
2021-05-06 15:31 ` [PATCH 19/42] PCI: aardvark: Fix setting MSI address Pali Rohár
2021-05-07 10:25   ` Marc Zyngier
2021-05-06 15:31 ` [PATCH 20/42] PCI: aardvark: Add support for more than 32 MSI interrupts Pali Rohár
2021-07-02 21:35   ` Pali Rohár
2021-05-06 15:31 ` [PATCH 21/42] PCI: aardvark: Add support for masking " Pali Rohár
2021-05-06 15:31 ` [PATCH 22/42] PCI: aardvark: Enable MSI-X support Pali Rohár
2021-05-06 15:31 ` [PATCH 23/42] PCI: aardvark: Fix support for ERR interrupt on emulated bridge Pali Rohár
2021-05-06 15:31 ` [PATCH 24/42] PCI: aardvark: Fix support for PME " Pali Rohár
2021-05-06 15:31 ` [PATCH 25/42] PCI: aardvark: Fix support for PME requester " Pali Rohár
2021-05-06 15:31 ` [PATCH 26/42] PCI: aardvark: Fix support for bus mastering and PCI_COMMAND " Pali Rohár
2021-05-06 15:31 ` [PATCH 27/42] PCI: aardvark: Disable bus mastering and mask all interrupts when unbinding driver Pali Rohár
2021-05-06 15:31 ` [PATCH 28/42] PCI: aardvark: Free config space for emulated root bridge when unbinding driver to fix memory leak Pali Rohár
2021-05-06 15:31 ` [PATCH 29/42] PCI: aardvark: Reset PCIe card and disable PHY when unbinding driver Pali Rohár
2021-05-06 15:31 ` [PATCH 30/42] PCI: aardvark: Rewrite irq code to chained irq handler Pali Rohár
2021-05-06 15:31 ` [PATCH 31/42] PCI: aardvark: Use separate INTA interrupt for emulated root bridge Pali Rohár
2021-05-06 15:31 ` [PATCH 32/42] PCI: pci-bridge-emul: Add description for class_revision field Pali Rohár
2021-05-06 15:31 ` [PATCH 33/42] PCI: pci-bridge-emul: Add definitions for missing capabilities registers Pali Rohár
2021-05-06 15:31 ` [PATCH 34/42] PCI: aardvark: Add support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2 registers on emulated bridge Pali Rohár
2021-05-06 15:31 ` [PATCH 35/42] PCI: aardvark: Add support for PCI_BRIDGE_CTL_BUS_RESET " Pali Rohár
2021-05-06 15:31 ` [PATCH 36/42] PCI: aardvark: Replace custom PCIE_CORE_ERR_CAPCTL_* macros by linux/pci_regs.h macros Pali Rohár
2021-05-06 15:31 ` [PATCH 37/42] PCI: aardvark: Replace custom PCIE_CORE_INT_* macros by linux PCI_INTERRUPT_* values Pali Rohár
2021-05-06 15:31 ` [PATCH 38/42] PCI: aardvark: Cleanup some register macros Pali Rohár
2021-05-06 15:31 ` [PATCH 39/42] PCI: aardvark: Add comments for OB_WIN_ENABLE and ADDR_WIN_DISABLE Pali Rohár
2021-05-06 15:31 ` [PATCH 40/42] PCI: pci-bridge-emul: re-arrange register tests Pali Rohár
2021-05-06 15:31 ` [PATCH 41/42] PCI: pci-bridge-emul: add support for PCIe extended capabilities Pali Rohár
2021-05-06 15:31 ` [PATCH 42/42] PCI: aardvark: Add support for Advanced Error Reporting registers on emulated bridge Pali Rohár
2021-06-03 15:16 ` Lorenzo Pieralisi [this message]
2021-06-03 17:02   ` [PATCH 00/42] PCI: aardvark: Various driver fixes Pali Rohár
2021-06-03 18:02   ` Simon Glass
2021-06-03 18:18     ` Pali Rohár
2021-06-04 14:05     ` Lorenzo Pieralisi

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