Commit ecb73902 authored by Richard A Lary's avatar Richard A Lary Committed by Benjamin Herrenschmidt
Browse files

powerpc/pseries/eeh: Handle functional reset on non-PCIe device 



  Fundamental reset is an optional reset type supported only by PCIe adapters.
  Handle the unexpected case where a non-PCIe device has requested a
  fundamental reset. Try hot-reset as a fallback to handle this case.

Signed-off-by: default avatarRichard A Lary <rlary@linux.vnet.ibm.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 308fc4f8

arch/powerpc/platforms/pseries/eeh.c

+14 −5
Original line number Diff line number Diff line
@@ -733,10 +733,19 @@ rtas_pci_slot_reset(struct pci_dn *pdn, int state) 
	               BUID_HI(pdn->phb->buid),

	               BUID_LO(pdn->phb->buid),

	               state);



	/* Fundamental-reset not supported on this PE, try hot-reset */

	if (rc == -8 && state == 3) {

		rc = rtas_call(ibm_set_slot_reset, 4, 1, NULL,

			       config_addr,

			       BUID_HI(pdn->phb->buid),

			       BUID_LO(pdn->phb->buid), 1);

		if (rc)

		printk (KERN_WARNING "EEH: Unable to reset the failed slot,"

		        " (%d) #RST=%d dn=%s\n",

		        rc, state, pdn->node->full_name);

			printk(KERN_WARNING

				"EEH: Unable to reset the failed slot,"

				" #RST=%d dn=%s\n",

				rc, pdn->node->full_name);

	}

}



/**

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