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authorMichael Chan <mchan@broadcom.com>2014-02-28 15:05:10 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-03-23 21:37:04 -0700
commitfc8927f2d373d522e85ca497e9f6755f564b42ce (patch)
treeeee3b2dafaa41537cd0a4afffa5797d8098f08ec
parent73c64222444db00a7f3b3cf933f76f2a2a866fb6 (diff)
tg3: Don't check undefined error bits in RXBD
[ Upstream commit d7b95315cc7f441418845a165ee56df723941487 ] 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 <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/net/ethernet/broadcom/tg3.c3
-rw-r--r--drivers/net/ethernet/broadcom/tg3.h6
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 558974f466d..6f4604958d6 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -5844,8 +5844,7 @@ 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 93865f899a4..780604de73f 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -2484,7 +2484,11 @@ 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;