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Commit 0b9369f4 authored by Linas Vepstas's avatar Linas Vepstas Committed by Paul Mackerras
Browse files

[POWERPC] EEH: Dump PCI bridge status on event 



Gather bridge-specific data on EEH events.

Signed-off-by: default avatarLinas Vepstas <linas@austin.ibm.com>
----
 arch/powerpc/platforms/pseries/eeh.c |   27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 093eda3c

arch/powerpc/platforms/pseries/eeh.c

+26 −1
Original line number Diff line number Diff line
@@ -169,6 +169,8 @@ static void rtas_slot_error_detail(struct pci_dn *pdn, int severity, 
 */

static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len)

{

	struct device_node *dn;

	struct pci_dev *dev = pdn->pcidev;

	u32 cfg;

	int cap, i;

	int n = 0;
@@ -184,6 +186,17 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) 
	n += scnprintf(buf+n, len-n, "cmd/stat:%x\n", cfg);

	printk(KERN_WARNING "EEH: PCI cmd/status register: %08x\n", cfg);



	/* Gather bridge-specific registers */

	if (dev->class >> 16 == PCI_BASE_CLASS_BRIDGE) {

		rtas_read_config(pdn, PCI_SEC_STATUS, 2, &cfg);

		n += scnprintf(buf+n, len-n, "sec stat:%x\n", cfg);

		printk(KERN_WARNING "EEH: Bridge secondary status: %04x\n", cfg);



		rtas_read_config(pdn, PCI_BRIDGE_CONTROL, 2, &cfg);

		n += scnprintf(buf+n, len-n, "brdg ctl:%x\n", cfg);

		printk(KERN_WARNING "EEH: Bridge control: %04x\n", cfg);

	}



	/* Dump out the PCI-X command and status regs */

	cap = pci_find_capability(pdn->pcidev, PCI_CAP_ID_PCIX);

	if (cap) {
@@ -222,6 +235,18 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) 
			}

		}

	}



	/* Gather status on devices under the bridge */

	if (dev->class >> 16 == PCI_BASE_CLASS_BRIDGE) {

		dn = pdn->node->child;

		while (dn) {

			pdn = PCI_DN(dn);

			if (pdn)

				n += gather_pci_data(pdn, buf+n, len-n);

			dn = dn->sibling;

		}

	}



	return n;

}