[PATCH] bus/pci: fix missing MMIO APIs in Windows

[Chenbo Xia <chenbo.xia@intel.com>]

MMIO read and write APIs were defined in PCI bus. But the corresponding
implementations are not done in windows. This patch fixes this.

Bugzilla ID: 1245
Fixes: 095cf6e68b28 ("bus/pci: introduce MMIO read/write")
Cc: stable@dpdk.org

Signed-off-by: Chenbo Xia <chenbo.xia@intel.com>
---
 drivers/bus/pci/windows/pci.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/bus/pci/windows/pci.c b/drivers/bus/pci/windows/pci.c
index df5221d913..45a12bcb52 100644
--- a/drivers/bus/pci/windows/pci.c
+++ b/drivers/bus/pci/windows/pci.c
@@ -88,6 +88,30 @@ rte_pci_write_config(const struct rte_pci_device *dev __rte_unused,
 	return 0;
 }
 
+/* Read PCI MMIO space. */
+int
+rte_pci_mmio_read(const struct rte_pci_device *dev, int bar,
+		      void *buf, size_t len, off_t offset)
+{
+	if (bar >= PCI_MAX_RESOURCE || dev->mem_resource[bar].addr == NULL ||
+			(uint64_t)offset + len > dev->mem_resource[bar].len)
+		return -1;
+	memcpy(buf, (uint8_t *)dev->mem_resource[bar].addr + offset, len);
+	return len;
+}
+
+/* Write PCI MMIO space. */
+int
+rte_pci_mmio_write(const struct rte_pci_device *dev, int bar,
+		       const void *buf, size_t len, off_t offset)
+{
+	if (bar >= PCI_MAX_RESOURCE || dev->mem_resource[bar].addr == NULL ||
+			(uint64_t)offset + len > dev->mem_resource[bar].len)
+		return -1;
+	memcpy((uint8_t *)dev->mem_resource[bar].addr + offset, buf, len);
+	return len;
+}
+
 enum rte_iova_mode
 pci_device_iova_mode(const struct rte_pci_driver *pdrv __rte_unused,
 		const struct rte_pci_device *pdev __rte_unused)
-- 
2.17.1