ar71xx: ethernet: reduce tx dma ring size further to improve cache footprint

[librecmc/librecmc.git] / target / linux / ar71xx / files / drivers / net / ethernet / atheros / ag71xx / ag71xx.h

diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h
index b9d95adaf62fc6bcb3a05ad64ba73a04232a65fe..606c6f1c057e8e3f3b2f3e3c0f503c4471edf66b 100644 (file)
--- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h
+++ b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h
@@ -55,11 +55,11 @@
        (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN)
 #define AG71XX_RX_BUF_SIZE (AG71XX_RX_PKT_SIZE + NET_SKB_PAD + NET_IP_ALIGN)
 
-#define AG71XX_TX_RING_SIZE_DEFAULT    64
+#define AG71XX_TX_RING_SIZE_DEFAULT    32
 #define AG71XX_RX_RING_SIZE_DEFAULT    128
 
-#define AG71XX_TX_RING_SIZE_MAX                256
-#define AG71XX_RX_RING_SIZE_MAX                256
+#define AG71XX_TX_RING_SIZE_MAX                32
+#define AG71XX_RX_RING_SIZE_MAX                128
 
 #ifdef CONFIG_AG71XX_DEBUG
 #define DBG(fmt, args...)      pr_debug(fmt, ## args)
@@ -91,8 +91,11 @@ struct ag71xx_buf {
                void            *rx_buf;
        };
        struct ag71xx_desc      *desc;
-       dma_addr_t              dma_addr;
-       unsigned long           timestamp;
+       union {
+               dma_addr_t      dma_addr;
+               unsigned long   timestamp;
+       };
+       unsigned int            len;
 };
 
 struct ag71xx_ring {