On 07/05/2019 14:30, Sam Bobroff wrote:
> Also remove useless comment.
>
> Signed-off-by: Sam Bobroff <sbobr...@linux.ibm.com>
> Reviewed-by: Alexey Kardashevskiy <a...@ozlabs.ru>
> ---
> arch/powerpc/kernel/eeh.c | 2 +-
> arch/powerpc/platforms/powernv/eeh-powernv.c | 14 ++++++++----
> arch/powerpc/platforms/pseries/eeh_pseries.c | 23 +++++++++++++++-----
> 3 files changed, 28 insertions(+), 11 deletions(-)
>
> diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
> index 8d3c36a1f194..b14d89547895 100644
> --- a/arch/powerpc/kernel/eeh.c
> +++ b/arch/powerpc/kernel/eeh.c
> @@ -1291,7 +1291,7 @@ void eeh_add_device_late(struct pci_dev *dev)
> pdn = pci_get_pdn_by_devfn(dev->bus, dev->devfn);
> edev = pdn_to_eeh_dev(pdn);
> if (edev->pdev == dev) {
> - pr_debug("EEH: Already referenced !\n");
> + pr_debug("EEH: Device %s already referenced!\n", pci_name(dev));
> return;
> }
>
> diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c
> b/arch/powerpc/platforms/powernv/eeh-powernv.c
> index 6fc1a463b796..0e374cdba961 100644
> --- a/arch/powerpc/platforms/powernv/eeh-powernv.c
> +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c
> @@ -50,10 +50,7 @@ void pnv_pcibios_bus_add_device(struct pci_dev *pdev)
> if (!pdev->is_virtfn)
> return;
>
> - /*
> - * The following operations will fail if VF's sysfs files
> - * aren't created or its resources aren't finalized.
> - */
> + pr_debug("%s: EEH: Setting up device %s.\n", __func__, pci_name(pdev));
dev_dbg() seems more appropriate.
> eeh_add_device_early(pdn);
> eeh_add_device_late(pdev);
> eeh_sysfs_add_device(pdev);
> @@ -397,6 +394,10 @@ static void *pnv_eeh_probe(struct pci_dn *pdn, void
> *data)
> int ret;
> int config_addr = (pdn->busno << 8) | (pdn->devfn);
>
> + pr_debug("%s: probing %04x:%02x:%02x.%01x\n",
> + __func__, hose->global_number, pdn->busno,
> + PCI_SLOT(pdn->devfn), PCI_FUNC(pdn->devfn));
> +
> /*
> * When probing the root bridge, which doesn't have any
> * subordinate PCI devices. We don't have OF node for
> @@ -491,6 +492,11 @@ static void *pnv_eeh_probe(struct pci_dn *pdn, void
> *data)
> /* Save memory bars */
> eeh_save_bars(edev);
>
> + pr_debug("%s: EEH enabled on %02x:%02x.%01x PHB#%x-PE#%x\n",
> + __func__, pdn->busno, PCI_SLOT(pdn->devfn),
> + PCI_FUNC(pdn->devfn), edev->pe->phb->global_number,
> + edev->pe->addr);
> +
> return NULL;
> }
>
> diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c
> b/arch/powerpc/platforms/pseries/eeh_pseries.c
> index 7aa50258dd42..ae06878fbdea 100644
> --- a/arch/powerpc/platforms/pseries/eeh_pseries.c
> +++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
> @@ -65,6 +65,8 @@ void pseries_pcibios_bus_add_device(struct pci_dev *pdev)
> if (!pdev->is_virtfn)
> return;
>
> + pr_debug("%s: EEH: Setting up device %s.\n", __func__, pci_name(pdev));
> +
> pdn->device_id = pdev->device;
> pdn->vendor_id = pdev->vendor;
> pdn->class_code = pdev->class;
> @@ -251,6 +253,10 @@ static void *pseries_eeh_probe(struct pci_dn *pdn, void
> *data)
> int enable = 0;
> int ret;
>
> + pr_debug("%s: probing %04x:%02x:%02x.%01x\n",
> + __func__, pdn->phb->global_number, pdn->busno,
> + PCI_SLOT(pdn->devfn), PCI_FUNC(pdn->devfn));
> +
> /* Retrieve OF node and eeh device */
> edev = pdn_to_eeh_dev(pdn);
> if (!edev || edev->pe)
> @@ -294,7 +300,12 @@ static void *pseries_eeh_probe(struct pci_dn *pdn, void
> *data)
>
> /* Enable EEH on the device */
> ret = eeh_ops->set_option(&pe, EEH_OPT_ENABLE);
> - if (!ret) {
> + if (ret) {
> + pr_debug("%s: EEH failed to enable on %02x:%02x.%01x
> PHB#%x-PE#%x (code %d)\n",
> + __func__, pdn->busno, PCI_SLOT(pdn->devfn),
> + PCI_FUNC(pdn->devfn), pe.phb->global_number,
> + pe.addr, ret);
> + } else {
edev!=NULL here so you could do dev_dbg(&edev->pdev->dev,...) and skip
PCI_SLOT/PCI_FUNC. Or is (edev!=NULL && edev->pdev==NULL) possible (it
could be, just asking)?
> /* Retrieve PE address */
> edev->pe_config_addr = eeh_ops->get_pe_addr(&pe);
> pe.addr = edev->pe_config_addr;
> @@ -310,11 +321,6 @@ static void *pseries_eeh_probe(struct pci_dn *pdn, void
> *data)
> if (enable) {
> eeh_add_flag(EEH_ENABLED);
> eeh_add_to_parent_pe(edev);
> -
> - pr_debug("%s: EEH enabled on %02x:%02x.%01x
> PHB#%x-PE#%x\n",
> - __func__, pdn->busno, PCI_SLOT(pdn->devfn),
> - PCI_FUNC(pdn->devfn), pe.phb->global_number,
> - pe.addr);
> } else if (pdn->parent && pdn_to_eeh_dev(pdn->parent) &&
> (pdn_to_eeh_dev(pdn->parent))->pe) {
> /* This device doesn't support EEH, but it may have an
> @@ -323,6 +329,11 @@ static void *pseries_eeh_probe(struct pci_dn *pdn, void
> *data)
> edev->pe_config_addr =
> pdn_to_eeh_dev(pdn->parent)->pe_config_addr;
> eeh_add_to_parent_pe(edev);
> }
> + pr_debug("%s: EEH %s on %02x:%02x.%01x PHB#%x-PE#%x (code
> %d)\n",
> + __func__, (enable ? "enabled" : "unsupported"),
> + pdn->busno, PCI_SLOT(pdn->devfn),
> + PCI_FUNC(pdn->devfn), pe.phb->global_number,
> + pe.addr, ret);
Same here. I understand though this one is a cut-n-paste :)
> }
>
> /* Save memory bars */
>
--
Alexey
