From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Chan Subject: [PATCH net] tg3: Don't check undefined error bits in RXBD Date: Fri, 28 Feb 2014 15:05:10 -0800 Message-ID: <1393628710-5476-1-git-send-email-mchan@broadcom.com> Mime-Version: 1.0 Content-Type: text/plain Cc: To: Return-path: Received: from mail-gw1-out.broadcom.com ([216.31.210.62]:10699 "EHLO mail-gw1-out.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751711AbaB1Vqe (ORCPT ); Fri, 28 Feb 2014 16:46:34 -0500 Sender: netdev-owner@vger.kernel.org List-ID: Redefine the RXD_ERR_MASK to include only relevant error bits. This fixes a customer reported issue of randomly dropping packets on the 5719. Signed-off-by: Michael Chan --- Please consider adding this to -stable. drivers/net/ethernet/broadcom/tg3.c | 3 +-- drivers/net/ethernet/broadcom/tg3.h | 6 +++++- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 3167ed6..3b6d0ba 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -6843,8 +6843,7 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget) work_mask |= opaque_key; - if ((desc->err_vlan & RXD_ERR_MASK) != 0 && - (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII)) { + if (desc->err_vlan & RXD_ERR_MASK) { drop_it: tg3_recycle_rx(tnapi, tpr, opaque_key, desc_idx, *post_ptr); diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h index ef47238..04321e5 100644 --- a/drivers/net/ethernet/broadcom/tg3.h +++ b/drivers/net/ethernet/broadcom/tg3.h @@ -2608,7 +2608,11 @@ struct tg3_rx_buffer_desc { #define RXD_ERR_TOO_SMALL 0x00400000 #define RXD_ERR_NO_RESOURCES 0x00800000 #define RXD_ERR_HUGE_FRAME 0x01000000 -#define RXD_ERR_MASK 0xffff0000 + +#define RXD_ERR_MASK (RXD_ERR_BAD_CRC | RXD_ERR_COLLISION | \ + RXD_ERR_LINK_LOST | RXD_ERR_PHY_DECODE | \ + RXD_ERR_MAC_ABRT | RXD_ERR_TOO_SMALL | \ + RXD_ERR_NO_RESOURCES | RXD_ERR_HUGE_FRAME) u32 reserved; u32 opaque; -- 1.7.1