From: Long Li <lon...@microsoft.com>
The code should look into "slab" to figure out the index returned from
rte_bitmap_scan().
Fixes: cc02518132 ("net/netvsc: split send buffers from Tx descriptors")
Cc: sta...@dpdk.org
Signed-off-by: Long Li <lon...@microsoft.com>
---
drivers/net/netvsc/hn_rxtx.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/netvsc/hn_rxtx.c b/drivers/net/netvsc/hn_rxtx.c
index 86a4c0d74..6b32c2ca7 100644
--- a/drivers/net/netvsc/hn_rxtx.c
+++ b/drivers/net/netvsc/hn_rxtx.c
@@ -206,11 +206,13 @@ hn_chim_uninit(struct rte_eth_dev *dev)
static uint32_t hn_chim_alloc(struct hn_data *hv)
{
uint32_t index = NVS_CHIM_IDX_INVALID;
- uint64_t slab;
+ uint64_t slab = 0;
rte_spinlock_lock(&hv->chim_lock);
- if (rte_bitmap_scan(hv->chim_bmap, &index, &slab))
+ if (rte_bitmap_scan(hv->chim_bmap, &index, &slab)) {
+ index += rte_bsf64(slab);
rte_bitmap_clear(hv->chim_bmap, index);
+ }
rte_spinlock_unlock(&hv->chim_lock);
return index;
--
2.25.1
