enic: Use receive queue buffer blocks of 32/64 entries
Change the receive queue buffer allocations into blocks of 32 entries when
ring size is less than 64, otherwise use 64 entries per block.
Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/enic/vnic_wq.h b/drivers/net/enic/vnic_wq.h
index 9c34d41..1c82139 100644
--- a/drivers/net/enic/vnic_wq.h
+++ b/drivers/net/enic/vnic_wq.h
@@ -60,12 +60,16 @@
void *desc;
};
-/* Break the vnic_wq_buf allocations into blocks of 64 entries */
-#define VNIC_WQ_BUF_BLK_ENTRIES 64
-#define VNIC_WQ_BUF_BLK_SZ \
- (VNIC_WQ_BUF_BLK_ENTRIES * sizeof(struct vnic_wq_buf))
+/* Break the vnic_wq_buf allocations into blocks of 32/64 entries */
+#define VNIC_WQ_BUF_MIN_BLK_ENTRIES 32
+#define VNIC_WQ_BUF_DFLT_BLK_ENTRIES 64
+#define VNIC_WQ_BUF_BLK_ENTRIES(entries) \
+ ((unsigned int)((entries < VNIC_WQ_BUF_DFLT_BLK_ENTRIES) ? \
+ VNIC_WQ_BUF_MIN_BLK_ENTRIES : VNIC_WQ_BUF_DFLT_BLK_ENTRIES))
+#define VNIC_WQ_BUF_BLK_SZ(entries) \
+ (VNIC_WQ_BUF_BLK_ENTRIES(entries) * sizeof(struct vnic_wq_buf))
#define VNIC_WQ_BUF_BLKS_NEEDED(entries) \
- DIV_ROUND_UP(entries, VNIC_WQ_BUF_BLK_ENTRIES)
+ DIV_ROUND_UP(entries, VNIC_WQ_BUF_BLK_ENTRIES(entries))
#define VNIC_WQ_BUF_BLKS_MAX VNIC_WQ_BUF_BLKS_NEEDED(4096)
struct vnic_wq {