[TG3]: Add rx BD workaround

Add workaround to limit the burst size of rx BDs being DMA'ed to the
chip.  This works around hardware errata on a number of 5750, 5752,
and 5755 chips.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 8209da5dd15..e9177f8521d 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2137,6 +2137,7 @@ struct tg3 {
         struct tg3_rx_buffer_desc       *rx_std;
         struct ring_info                *rx_std_buffers;
         dma_addr_t                      rx_std_mapping;
+        u32                             rx_std_max_post;
 
         struct tg3_rx_buffer_desc       *rx_jumbo;
         struct ring_info                *rx_jumbo_buffers;