diff options
| -rw-r--r-- | drivers/net/cxgb3/xgmac.c | 72 |
1 files changed, 33 insertions, 39 deletions
diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c index 9d7786937aad..4bd0901a97a6 100644 --- a/drivers/net/cxgb3/xgmac.c +++ b/drivers/net/cxgb3/xgmac.c @@ -150,7 +150,8 @@ int t3_mac_reset(struct cmac *mac) static int t3b2_mac_reset(struct cmac *mac) { struct adapter *adap = mac->adapter; - unsigned int oft = mac->offset; + unsigned int oft = mac->offset, store; + int idx = macidx(mac); u32 val; if (!macidx(mac)) @@ -158,14 +159,28 @@ static int t3b2_mac_reset(struct cmac *mac) else t3_set_reg_field(adap, A_MPS_CFG, F_PORT1ACTIVE, 0); + /* Stop NIC traffic to reduce the number of TXTOGGLES */ + t3_set_reg_field(adap, A_MPS_CFG, F_ENFORCEPKT, 0); + /* Ensure TX drains */ + t3_set_reg_field(adap, A_XGM_TX_CFG + oft, F_TXPAUSEEN, 0); + t3_write_reg(adap, A_XGM_RESET_CTRL + oft, F_MAC_RESET_); t3_read_reg(adap, A_XGM_RESET_CTRL + oft); /* flush */ + /* Store A_TP_TX_DROP_CFG_CH0 */ + t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CFG_CH0 + idx); + store = t3_read_reg(adap, A_TP_TX_DROP_CFG_CH0 + idx); + msleep(10); + /* Change DROP_CFG to 0xc0000011 */ + t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CFG_CH0 + idx); + t3_write_reg(adap, A_TP_PIO_DATA, 0xc0000011); + /* Check for xgm Rx fifo empty */ + /* Increased loop count to 1000 from 5 cover 1G and 100Mbps case */ if (t3_wait_op_done(adap, A_XGM_RX_MAX_PKT_SIZE_ERR_CNT + oft, - 0x80000000, 1, 5, 2)) { + 0x80000000, 1, 1000, 2)) { CH_ERR(adap, "MAC %d Rx fifo drain failed\n", macidx(mac)); return -1; @@ -191,11 +206,18 @@ static int t3b2_mac_reset(struct cmac *mac) F_DISPAUSEFRAMES | F_EN1536BFRAMES | F_RMFCS | F_ENJUMBO | F_ENHASHMCAST); - if (!macidx(mac)) + /* Restore the DROP_CFG */ + t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CFG_CH0 + idx); + t3_write_reg(adap, A_TP_PIO_DATA, store); + + if (!idx) t3_set_reg_field(adap, A_MPS_CFG, 0, F_PORT0ACTIVE); else t3_set_reg_field(adap, A_MPS_CFG, 0, F_PORT1ACTIVE); + /* re-enable nic traffic */ + t3_set_reg_field(adap, A_MPS_CFG, F_ENFORCEPKT, 1); + return 0; } @@ -332,15 +354,6 @@ int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu) return -EINVAL; t3_write_reg(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, mtu); - /* - * Adjust the PAUSE frame watermarks. We always set the LWM, and the - * HWM only if flow-control is enabled. - */ - hwm = max_t(unsigned int, MAC_RXFIFO_SIZE - 3 * mtu, - MAC_RXFIFO_SIZE * 38 / 100); - hwm = min(hwm, MAC_RXFIFO_SIZE - 8192); - lwm = min(3 * (int)mtu, MAC_RXFIFO_SIZE / 4); - if (adap->params.rev >= T3_REV_B2 && (t3_read_reg(adap, A_XGM_RX_CTRL + mac->offset) & F_RXEN)) { disable_exact_filters(mac); @@ -452,9 +465,12 @@ int t3_mac_enable(struct cmac *mac, int which) if (which & MAC_DIRECTION_TX) { t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CFG_CH0 + idx); - t3_write_reg(adap, A_TP_PIO_DATA, 0xc0ede401); + t3_write_reg(adap, A_TP_PIO_DATA, + adap->params.rev == T3_REV_C ? + 0xc4ffff01 : 0xc0ede401); t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_MODE); - t3_set_reg_field(adap, A_TP_PIO_DATA, 1 << idx, 1 << idx); + t3_set_reg_field(adap, A_TP_PIO_DATA, 1 << idx, + adap->params.rev == T3_REV_C ? 0 : 1 << idx); t3_write_reg(adap, A_XGM_TX_CTRL + oft, F_TXEN); @@ -510,15 +526,12 @@ int t3b2_mac_watchdog_task(struct cmac *mac) struct adapter *adap = mac->adapter; struct mac_stats *s = &mac->stats; unsigned int tx_tcnt, tx_xcnt; - unsigned int tx_mcnt = s->tx_frames; - unsigned int rx_mcnt = s->rx_frames; - unsigned int rx_xcnt; + u64 tx_mcnt = s->tx_frames; int status; status = 0; 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 && mac->rx_pause == s->rx_pause) { tx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap, A_XGM_TX_SPI4_SOP_EOP_CNT + @@ -529,11 +542,11 @@ int t3b2_mac_watchdog_task(struct cmac *mac) tx_tcnt = (G_TXDROPCNTCH0RCVD(t3_read_reg(adap, A_TP_PIO_DATA))); } else { - goto rxcheck; + goto out; } } else { mac->toggle_cnt = 0; - goto rxcheck; + goto out; } if ((tx_tcnt != mac->tx_tcnt) && (mac->tx_xcnt == 0)) { @@ -546,23 +559,6 @@ int t3b2_mac_watchdog_task(struct cmac *mac) } } else { mac->toggle_cnt = 0; - goto rxcheck; - } - -rxcheck: - if (rx_mcnt != mac->rx_mcnt) { - rx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap, - A_XGM_RX_SPI4_SOP_EOP_CNT + - mac->offset))) + - (s->rx_fifo_ovfl - - mac->rx_ocnt); - mac->rx_ocnt = s->rx_fifo_ovfl; - } else - goto out; - - if (mac->rx_mcnt != s->rx_frames && rx_xcnt == 0 && - mac->rx_xcnt == 0) { - status = 2; goto out; } @@ -570,8 +566,6 @@ out: mac->tx_tcnt = tx_tcnt; mac->tx_xcnt = tx_xcnt; 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); |