[PATCH v6 4/7] powerpc/eeh: Rely on `link_active_reporting'
From: "Maciej W. Rozycki" <macro@orcam.me.uk>
Date: 2023-02-05 15:49:43
Also in:
linux-pci, linux-rdma, lkml, netdev
From: "Maciej W. Rozycki" <macro@orcam.me.uk>
Date: 2023-02-05 15:49:43
Also in:
linux-pci, linux-rdma, lkml, netdev
Use `link_active_reporting' to determine whether Data Link Layer Link Active Reporting is available rather than re-retrieving the capability. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> --- NB this has been compile-tested only with a PPC64LE configuration. New change in v6. --- arch/powerpc/kernel/eeh_pe.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) linux-pcie-link-active-reporting-eeh.diff Index: linux-macro/arch/powerpc/kernel/eeh_pe.c ===================================================================
--- linux-macro.orig/arch/powerpc/kernel/eeh_pe.c
+++ linux-macro/arch/powerpc/kernel/eeh_pe.c@@ -671,9 +671,8 @@ static void eeh_bridge_check_link(struct eeh_ops->write_config(edev, cap + PCI_EXP_LNKCTL, 2, val); /* Check link */ - eeh_ops->read_config(edev, cap + PCI_EXP_LNKCAP, 4, &val); - if (!(val & PCI_EXP_LNKCAP_DLLLARC)) { - eeh_edev_dbg(edev, "No link reporting capability (0x%08x) \n", val); + if (!edev->pdev->link_active_reporting) { + eeh_edev_dbg(edev, "No link reporting capability\n"); msleep(1000); return; }