vhost: add packed ring single enqueue

[dpdk.git] / drivers / raw / ntb / ntb_hw_intel.c

diff --git a/drivers/raw/ntb/ntb_hw_intel.c b/drivers/raw/ntb/ntb_hw_intel.c
index 0e73f16..e7f8667 100644 (file)
--- a/drivers/raw/ntb/ntb_hw_intel.c
+++ b/drivers/raw/ntb/ntb_hw_intel.c
@@ -162,6 +162,27 @@ intel_ntb_mw_set_trans(const struct rte_rawdev *dev, int mw_idx,
        return 0;
 }
 
+static void *
+intel_ntb_ioremap(const struct rte_rawdev *dev, uint64_t addr)
+{
+       struct ntb_hw *hw = dev->dev_private;
+       void *mapped = NULL;
+       void *base;
+       int i;
+
+       for (i = 0; i < hw->peer_used_mws; i++) {
+               if (addr >= hw->peer_mw_base[i] &&
+                   addr <= hw->peer_mw_base[i] + hw->mw_size[i]) {
+                       base = intel_ntb_get_peer_mw_addr(dev, i);
+                       mapped = (void *)(size_t)(addr - hw->peer_mw_base[i] +
+                                (size_t)base);
+                       break;
+               }
+       }
+
+       return mapped;
+}
+
 static int
 intel_ntb_get_link_status(const struct rte_rawdev *dev)
 {
@@ -357,6 +378,7 @@ const struct ntb_dev_ops intel_ntb_ops = {
        .ntb_dev_init       = intel_ntb_dev_init,
        .get_peer_mw_addr   = intel_ntb_get_peer_mw_addr,
        .mw_set_trans       = intel_ntb_mw_set_trans,
+       .ioremap            = intel_ntb_ioremap,
        .get_link_status    = intel_ntb_get_link_status,
        .set_link           = intel_ntb_set_link,
        .spad_read          = intel_ntb_spad_read,