On 10/2/2018 4:13 AM, Leon Romanovsky wrote:
From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
IDA adds overhead to store IDs bitmap with maximal value of IDA
can be upto 2099202 (IDA_MAX = 0x80000000U / IDA_BITMAP_BITS - 1).
However, there is no need to add such enormous number of devices
and it is enough for now to limit it to be 8192.
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/core/core_priv.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h
index d7399d5b1cb6..f60c7b65aea9 100644
--- a/drivers/infiniband/core/core_priv.h
+++ b/drivers/infiniband/core/core_priv.h
@@ -44,7 +44,7 @@
#include "mad_priv.h"
/* Total number of ports combined across all struct ib_devices's */
-#define RDMA_MAX_PORTS 1024
+#define RDMA_MAX_PORTS 8192
struct pkey_index_qp_list {
struct list_head pkey_index_list;
--
2.14.4
You do explain why you limit it to 8192, but why do you need to go
beyond 1024 in the first place? Adding that detail would strengthen the
commit message I think.
-Denny
