diff options
| author | Haiyang Zhang <haiyangz@microsoft.com> | 2019-08-22 05:05:41 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-08-22 00:25:12 -0700 |
| commit | 348dd93e40c112afda3cd07daa6f470e474d29dc (patch) | |
| tree | e4b0acc10150511e373b2137e5dc4c14ba7132d0 /drivers/pci/controller/pci-hyperv.c | |
| parent | e5d2f910cfeca852f6e2dc19dfa8dab264ce0cde (diff) | |
| download | linux-rt-348dd93e40c112afda3cd07daa6f470e474d29dc.tar.gz | |
PCI: hv: Add a Hyper-V PCI interface driver for software backchannel interface
This interface driver is a helper driver allows other drivers to
have a common interface with the Hyper-V PCI frontend driver.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/pci/controller/pci-hyperv.c')
| -rw-r--r-- | drivers/pci/controller/pci-hyperv.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index 57adeca7bda9..9c93ac2215b7 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -983,7 +983,6 @@ int hv_read_config_block(struct pci_dev *pdev, void *buf, unsigned int len, *bytes_returned = comp_pkt.bytes_returned; return 0; } -EXPORT_SYMBOL(hv_read_config_block); /** * hv_pci_write_config_compl() - Invoked when a response packet for a write @@ -1070,7 +1069,6 @@ int hv_write_config_block(struct pci_dev *pdev, void *buf, unsigned int len, return 0; } -EXPORT_SYMBOL(hv_write_config_block); /** * hv_register_block_invalidate() - Invoked when a config block invalidation @@ -1101,7 +1099,6 @@ int hv_register_block_invalidate(struct pci_dev *pdev, void *context, return 0; } -EXPORT_SYMBOL(hv_register_block_invalidate); /* Interrupt management hooks */ static void hv_int_desc_free(struct hv_pci_dev *hpdev, @@ -3045,10 +3042,19 @@ static struct hv_driver hv_pci_drv = { static void __exit exit_hv_pci_drv(void) { vmbus_driver_unregister(&hv_pci_drv); + + hvpci_block_ops.read_block = NULL; + hvpci_block_ops.write_block = NULL; + hvpci_block_ops.reg_blk_invalidate = NULL; } static int __init init_hv_pci_drv(void) { + /* Initialize PCI block r/w interface */ + hvpci_block_ops.read_block = hv_read_config_block; + hvpci_block_ops.write_block = hv_write_config_block; + hvpci_block_ops.reg_blk_invalidate = hv_register_block_invalidate; + return vmbus_driver_register(&hv_pci_drv); } |