From: Divy Le Ray <divy@chelsio.com>
Qualify toggling of xgmac tx enable with not getting pause frames,
we might not make forward progress because the peer is sending
lots of pause frames.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
---
drivers/net/cxgb3/common.h | 1 +
drivers/net/cxgb3/xgmac.c | 4 +++-
2 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index ada5e4b..7e9e43d 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -513,6 +513,7 @@ struct cmac {
u64 rx_mcnt;
unsigned int toggle_cnt;
unsigned int txen;
+ u64 rx_pause;
struct mac_stats stats;
};
diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c
index 1d1c391..ff9e9dc 100644
--- a/drivers/net/cxgb3/xgmac.c
+++ b/drivers/net/cxgb3/xgmac.c
@@ -452,6 +452,7 @@ int t3_mac_enable(struct cmac *mac, int which)
A_XGM_TX_SPI4_SOP_EOP_CNT +
oft)));
mac->rx_mcnt = s->rx_frames;
+ mac->rx_pause = s->rx_pause;
mac->rx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
A_XGM_RX_SPI4_SOP_EOP_CNT +
oft)));
@@ -504,7 +505,7 @@ int t3b2_mac_watchdog_task(struct cmac *mac)
tx_xcnt = 1; /* By default tx_xcnt is making progress */
tx_tcnt = mac->tx_tcnt; /* If tx_mcnt is progressing ignore tx_tcnt */
rx_xcnt = 1; /* By default rx_xcnt is making progress */
- if (tx_mcnt == mac->tx_mcnt) {
+ if (tx_mcnt == mac->tx_mcnt && mac->rx_pause == s->rx_pause) {
tx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
A_XGM_TX_SPI4_SOP_EOP_CNT +
mac->offset)));
@@ -560,6 +561,7 @@ out:
mac->tx_mcnt = s->tx_frames;
mac->rx_xcnt = rx_xcnt;
mac->rx_mcnt = s->rx_frames;
+ mac->rx_pause = s->rx_pause;
if (status == 1) {
t3_write_reg(adap, A_XGM_TX_CTRL + mac->offset, 0);
t3_read_reg(adap, A_XGM_TX_CTRL + mac->offset); /* flush */
-
