diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2021-03-30 12:43:18 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2021-03-31 12:29:40 -0500 |
| commit | 0a0b5f4b43671f8f128eb438edacee0a1d113385 (patch) | |
| tree | 156fc86b7d7f75271356e14dab4520069a10a2e2 | |
| parent | d06a113fec57b2c012b94241af4a1bc5656458a2 (diff) | |
| download | lwn-0a0b5f4b43671f8f128eb438edacee0a1d113385.tar.gz lwn-0a0b5f4b43671f8f128eb438edacee0a1d113385.zip | |
ARM: iop32x: disable N2100 PCI parity reporting
On the N2100, instead of just marking the r8169 chips as having
broken_parity_status, disable parity error reporting for them entirely.
This was the only relevant place that set broken_parity_status, so we no
longer need to check for it in the r8169 error interrupt handler.
[bhelgaas: squash into one patch, commit log]
Link: https://lore.kernel.org/r/20210330174318.1289680-4-helgaas@kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
| -rw-r--r-- | arch/arm/mach-iop32x/n2100.c | 8 | ||||
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_main.c | 14 |
2 files changed, 4 insertions, 18 deletions
diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c index 78b9a5ee41c9..bf99e718f8b8 100644 --- a/arch/arm/mach-iop32x/n2100.c +++ b/arch/arm/mach-iop32x/n2100.c @@ -116,16 +116,16 @@ static struct hw_pci n2100_pci __initdata = { }; /* - * Both r8169 chips on the n2100 exhibit PCI parity problems. Set - * the ->broken_parity_status flag for both ports so that the r8169 - * driver knows it should ignore error interrupts. + * Both r8169 chips on the n2100 exhibit PCI parity problems. Turn + * off parity reporting for both ports so we don't get error interrupts + * for them. */ static void n2100_fixup_r8169(struct pci_dev *dev) { if (dev->bus->number == 0 && (dev->devfn == PCI_DEVFN(1, 0) || dev->devfn == PCI_DEVFN(2, 0))) - dev->broken_parity_status = 1; + pci_disable_parity(dev); } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_REALTEK, PCI_ANY_ID, n2100_fixup_r8169); diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index f704da3f214c..a6aff0d993eb 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -4358,20 +4358,6 @@ static void rtl8169_pcierr_interrupt(struct net_device *dev) if (net_ratelimit()) netdev_err(dev, "PCI error (cmd = 0x%04x, status_errs = 0x%04x)\n", pci_cmd, pci_status_errs); - /* - * The recovery sequence below admits a very elaborated explanation: - * - it seems to work; - * - I did not see what else could be done; - * - it makes iop3xx happy. - * - * Feel free to adjust to your needs. - */ - if (pdev->broken_parity_status) - pci_cmd &= ~PCI_COMMAND_PARITY; - else - pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY; - - pci_write_config_word(pdev, PCI_COMMAND, pci_cmd); rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING); } |