Merge branch 'pci/virtualization'

- Delay extra 250ms after FLR of Solidigm P44 Pro NVMe to avoid KVM hang
  when guest is rebooted (Mike Pastore)

- Add function 1 DMA alias quirk for Marvell 88SE9235 (Robin Murphy)

* pci/virtualization:
  PCI: Add function 1 DMA alias quirk for Marvell 88SE9235
  PCI: Delay after FLR of Solidigm P44 Pro NVMe

Author: bjorn-helgaas

drivers/pci/quirks.c

@@ -4086,10 +4086,11 @@ static int nvme_disable_and_flr(struct pci_dev *dev, bool probe)
 }
 
 /*
- * Intel DC P3700 NVMe controller will timeout waiting for ready status
- * to change after NVMe enable if the driver starts interacting with the
- * device too soon after FLR.  A 250ms delay after FLR has heuristically
- * proven to produce reliably working results for device assignment cases.
+ * Some NVMe controllers such as Intel DC P3700 and Solidigm P44 Pro will
+ * timeout waiting for ready status to change after NVMe enable if the driver
+ * starts interacting with the device too soon after FLR.  A 250ms delay after
+ * FLR has heuristically proven to produce reliably working results for device
+ * assignment cases.
  */
 static int delay_250ms_after_flr(struct pci_dev *dev, bool probe)
 {
@@ -4176,6 +4177,7 @@ static const struct pci_dev_reset_methods pci_dev_reset_methods[] = {
 	{ PCI_VENDOR_ID_SAMSUNG, 0xa804, nvme_disable_and_flr },
 	{ PCI_VENDOR_ID_INTEL, 0x0953, delay_250ms_after_flr },
 	{ PCI_VENDOR_ID_INTEL, 0x0a54, delay_250ms_after_flr },
+	{ PCI_VENDOR_ID_SOLIDIGM, 0xf1ac, delay_250ms_after_flr },
 	{ PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID,
 		reset_chelsio_generic_dev },
 	{ PCI_VENDOR_ID_HUAWEI, PCI_DEVICE_ID_HINIC_VF,
@@ -4267,6 +4269,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9220,
 /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c49 */
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9230,
 			 quirk_dma_func1_alias);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9235,
+			 quirk_dma_func1_alias);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI, 0x0642,
 			 quirk_dma_func1_alias);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI, 0x0645,

include/linux/pci_ids.h

@@ -158,6 +158,8 @@
 
 #define PCI_VENDOR_ID_LOONGSON		0x0014
 
+#define PCI_VENDOR_ID_SOLIDIGM		0x025e
+
 #define PCI_VENDOR_ID_TTTECH		0x0357
 #define PCI_DEVICE_ID_TTTECH_MC322	0x000a