diff mbox series

[v2,2/2] pseries/eeh: Add Pseries pcibios_bus_add_device

Message ID 20170922140608.47665-3-bryantly@linux.vnet.ibm.com
State Superseded
Headers show
Series Prepartion for SR-IOV PowerVM Enablement | expand

Commit Message

Bryant G. Ly Sept. 22, 2017, 2:06 p.m. UTC 
This patch adds the machine dependent call for
pcibios_bus_add_device, since the previous patch
separated the calls out between the PowerNV and PowerVM.

The difference here is that for the PowerVM environment
we do not want match_driver set because in this environment
we do not want the VF device drivers to load immediately, due to
firmware loading the device node when VF device is assigned to the
logical partition.

This patch will depend on the patch linked below, which is under
review.

https://patchwork.kernel.org/patch/9882915/

Signed-off-by: Bryant G. Ly <bryantly@linux.vnet.ibm.com>
Signed-off-by: Juan J. Alvarez <jjalvare@us.ibm.com>
---
 arch/powerpc/platforms/pseries/eeh_pseries.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
diff mbox series

Patch

diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index 1eef46d9cf30..ac72011a045c 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -64,6 +64,27 @@  static unsigned char slot_errbuf[RTAS_ERROR_LOG_MAX];
 static DEFINE_SPINLOCK(slot_errbuf_lock);
 static int eeh_error_buf_size;
 
+void pseries_pcibios_bus_add_device(struct pci_dev *pdev)
+{
+	struct pci_dn *pdn = pci_get_pdn(pdev);
+
+	if (!pdev->is_virtfn)
+		return;
+
+	pdn->device_id  =  pdev->device;
+	pdn->vendor_id  =  pdev->vendor;
+	pdn->class_code =  pdev->class;
+
+	/*
+	 * The following operations will fail if VF's sysfs files
+	 * aren't created or its resources aren't finalized.
+	 */
+	eeh_add_device_early(pdn);
+	eeh_add_device_late(pdev);
+	eeh_sysfs_add_device(pdev);
+	pdev->match_driver = -1;
+}
+
 /**
  * pseries_eeh_init - EEH platform dependent initialization
  *
@@ -120,6 +141,9 @@  static int pseries_eeh_init(void)
 	/* Set EEH probe mode */
 	eeh_add_flag(EEH_PROBE_MODE_DEVTREE | EEH_ENABLE_IO_FOR_LOG);
 
+	/* Set EEH machine dependent code */
+	ppc_md.pcibios_bus_add_device = pseries_pcibios_bus_add_device;
+
 	return 0;
 }