[v6,40/42] nvme: change controller pci id

Commit Message

Klaus Jensen March 16, 2020, 2:29 p.m. UTC

From: Klaus Jensen <[e-mail]>

There are two reasons for changing this:

  1. The nvme device currently uses an internal Intel device id.

  2. Since commits "nvme: fix write zeroes offset and count" and "nvme:
     support multiple namespaces" the controller device no longer has
     the quirks that the Linux kernel think it has.

     As the quirks are applied based on pci vendor and device id, change
     them to get rid of the quirks.

To keep backward compatibility, add a new 'x-use-intel-id' parameter to
the nvme device to force use of the Intel vendor and device id. This is
off by default but add a compat property to set this for machines 4.2
and older.

Signed-off-by: Klaus Jensen <[e-mail]>
Reviewed-by: Keith Busch <[e-mail]>
Reviewed-by: Maxim Levitsky <[e-mail]>
---
 hw/block/nvme.c   | 13 +++++++++----
 hw/block/nvme.h   |  4 +++-
 hw/core/machine.c |  1 +
 3 files changed, 13 insertions(+), 5 deletions(-)

Patch

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 88a0499d0fe0..f176d859a85e 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -2493,8 +2493,15 @@  static void nvme_init_pci(NvmeCtrl *n, PCIDevice *pci_dev)
 
     pci_conf[PCI_INTERRUPT_PIN] = 1;
     pci_config_set_prog_interface(pci_conf, 0x2);
-    pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL);
-    pci_config_set_device_id(pci_conf, 0x5845);
+
+    if (n->params.use_intel_id) {
+        pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL);
+        pci_config_set_device_id(pci_conf, 0x5846);
+    } else {
+        pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_REDHAT);
+        pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_REDHAT_NVME);
+    }
+
     pci_config_set_class(pci_conf, PCI_CLASS_STORAGE_EXPRESS);
     pcie_endpoint_cap_init(pci_dev, 0x80);
 
@@ -2669,8 +2676,6 @@  static void nvme_class_init(ObjectClass *oc, void *data)
     pc->realize = nvme_realize;
     pc->exit = nvme_exit;
     pc->class_id = PCI_CLASS_STORAGE_EXPRESS;
-    pc->vendor_id = PCI_VENDOR_ID_INTEL;
-    pc->device_id = 0x5845;
     pc->revision = 2;
 
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
diff --git a/hw/block/nvme.h b/hw/block/nvme.h
index c66f6cd8413a..70df17e6f893 100644
--- a/hw/block/nvme.h
+++ b/hw/block/nvme.h
@@ -13,7 +13,8 @@ 
     DEFINE_PROP_UINT32("max_ioqpairs", _state, _props.max_ioqpairs, 64), \
     DEFINE_PROP_UINT8("aerl", _state, _props.aerl, 3), \
     DEFINE_PROP_UINT32("aer_max_queued", _state, _props.aer_max_queued, 64), \
-    DEFINE_PROP_UINT8("mdts", _state, _props.mdts, 7)
+    DEFINE_PROP_UINT8("mdts", _state, _props.mdts, 7), \
+    DEFINE_PROP_BOOL("x-use-intel-id", _state, _props.use_intel_id, false)
 
 typedef struct NvmeParams {
     char     *serial;
@@ -23,6 +24,7 @@  typedef struct NvmeParams {
     uint8_t  aerl;
     uint32_t aer_max_queued;
     uint8_t  mdts;
+    bool     use_intel_id;
 } NvmeParams;
 
 typedef struct NvmeAsyncEvent {
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 9e8c06036faf..fe7dbca0b9a2 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -39,6 +39,7 @@  GlobalProperty hw_compat_4_2[] = {
     { "usb-redir", "suppress-remote-wake", "off" },
     { "qxl", "revision", "4" },
     { "qxl-vga", "revision", "4" },
+    { "nvme", "x-use-intel-id", "on"},
 };
 const size_t hw_compat_4_2_len = G_N_ELEMENTS(hw_compat_4_2);