hw/pvrdma: Collect debugging statistics

Add counters to enable enhance debugging

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Message-Id: <1552300155-25216-5-git-send-email-yuval.shaia@oracle.com>
Reviewed-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/hw/rdma/rdma_rm.c b/hw/rdma/rdma_rm.c
index 7ea62a9e60..35fa1ab44e 100644
--- a/hw/rdma/rdma_rm.c
+++ b/hw/rdma/rdma_rm.c
@@ -37,6 +37,7 @@ static inline void res_tbl_init(const char *name, RdmaRmResTbl *tbl,
     tbl->bitmap = bitmap_new(tbl_sz);
     tbl->tbl_sz = tbl_sz;
     tbl->res_sz = res_sz;
+    tbl->used = 0;
     qemu_mutex_init(&tbl->lock);
 }
 
@@ -76,6 +77,8 @@ static inline void *rdma_res_tbl_alloc(RdmaRmResTbl *tbl, uint32_t *handle)
 
     set_bit(*handle, tbl->bitmap);
 
+    tbl->used++;
+
     qemu_mutex_unlock(&tbl->lock);
 
     memset(tbl->tbl + *handle * tbl->res_sz, 0, tbl->res_sz);
@@ -93,6 +96,7 @@ static inline void rdma_res_tbl_dealloc(RdmaRmResTbl *tbl, uint32_t handle)
 
     if (handle < tbl->tbl_sz) {
         clear_bit(handle, tbl->bitmap);
+        tbl->used--;
     }
 
     qemu_mutex_unlock(&tbl->lock);
@@ -619,6 +623,9 @@ int rdma_rm_init(RdmaDeviceResources *dev_res, struct ibv_device_attr *dev_attr)
 
     qemu_mutex_init(&dev_res->lock);
 
+    memset(&dev_res->stats, 0, sizeof(dev_res->stats));
+    atomic_set(&dev_res->stats.missing_cqe, 0);
+
     return 0;
 }