From 6d6dabac382604db22ff51c5e0d25af18529ac8b Mon Sep 17 00:00:00 2001 From: Divy Le Ray Date: Sat, 31 Mar 2007 00:23:24 -0700 Subject: [PATCH] cxgb3 - Tighten xgmac workaround Run the watchdog task when the link is up. Flush the XGMAC Tx FIFO when the link drops. Also remove a statistics update that should have gone in the previous modification of xgmac.c. Signed-off-by: Divy Le Ray Signed-off-by: Jeff Garzik --- drivers/net/cxgb3/cxgb3_main.c | 16 +++++++++++++--- drivers/net/cxgb3/regs.h | 4 ++++ drivers/net/cxgb3/xgmac.c | 1 - 3 files changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c index 145b67cc1d2..512daf73894 100644 --- a/drivers/net/cxgb3/cxgb3_main.c +++ b/drivers/net/cxgb3/cxgb3_main.c @@ -185,16 +185,26 @@ void t3_os_link_changed(struct adapter *adapter, int port_id, int link_stat, int speed, int duplex, int pause) { struct net_device *dev = adapter->port[port_id]; + struct port_info *pi = netdev_priv(dev); + struct cmac *mac = &pi->mac; /* Skip changes from disabled ports. */ if (!netif_running(dev)) return; if (link_stat != netif_carrier_ok(dev)) { - if (link_stat) + if (link_stat) { + t3_set_reg_field(adapter, + A_XGM_TXFIFO_CFG + mac->offset, + F_ENDROPPKT, 0); netif_carrier_on(dev); - else + } else { netif_carrier_off(dev); + t3_set_reg_field(adapter, + A_XGM_TXFIFO_CFG + mac->offset, + F_ENDROPPKT, F_ENDROPPKT); + } + link_report(dev); } } @@ -2119,7 +2129,7 @@ static void check_t3b2_mac(struct adapter *adapter) continue; status = 0; - if (netif_running(dev)) + if (netif_running(dev) && netif_carrier_ok(dev)) status = t3b2_mac_watchdog_task(&p->mac); if (status == 1) p->mac.stats.num_toggled++; diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h index b38629a244d..f8be41c5a08 100644 --- a/drivers/net/cxgb3/regs.h +++ b/drivers/net/cxgb3/regs.h @@ -1940,6 +1940,10 @@ #define V_TXFIFOTHRESH(x) ((x) << S_TXFIFOTHRESH) +#define S_ENDROPPKT 21 +#define V_ENDROPPKT(x) ((x) << S_ENDROPPKT) +#define F_ENDROPPKT V_ENDROPPKT(1U) + #define A_XGM_SERDES_CTRL 0x890 #define A_XGM_SERDES_CTRL0 0x8e0 diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c index 2b42c13ba8e..94aaff005a3 100644 --- a/drivers/net/cxgb3/xgmac.c +++ b/drivers/net/cxgb3/xgmac.c @@ -471,7 +471,6 @@ const struct mac_stats *t3_mac_update_stats(struct cmac *mac) RMON_UPDATE(mac, rx_symbol_errs, RX_SYM_CODE_ERR_FRAMES); RMON_UPDATE(mac, rx_too_long, RX_OVERSIZE_FRAMES); - mac->stats.rx_too_long += RMON_READ(mac, A_XGM_RX_MAX_PKT_SIZE_ERR_CNT); v = RMON_READ(mac, A_XGM_RX_MAX_PKT_SIZE_ERR_CNT); if (mac->adapter->params.rev == T3_REV_B2) -- 2.41.1