diff options
| author | Divy Le Ray <divy@chelsio.com> | 2007-08-11 10:29:33 +0400 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-11 03:50:28 +0400 |
| commit | b1c9e0f7806d1f627f534fd0f83f235087496f7a (patch) | |
| tree | b13d41bd5583850b53a7626d5017f3fd555f9563 /drivers | |
| parent | acb2cc8b20d6cb9e65c1e442d59a2449d8774157 (diff) | |
| download | linux-b1c9e0f7806d1f627f534fd0f83f235087496f7a.tar.xz | |
cxgb3 - MAC workaround update
Update the MAC workaround to deal with switches that do not
honor pause frames.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/cxgb3/common.h | 1 | ||||
| -rw-r--r-- | drivers/net/cxgb3/xgmac.c | 22 |
2 files changed, 12 insertions, 11 deletions
diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h index 2129210a67c1..1746003eb46a 100644 --- a/drivers/net/cxgb3/common.h +++ b/drivers/net/cxgb3/common.h @@ -507,6 +507,7 @@ struct cmac { unsigned int tx_xcnt; u64 tx_mcnt; unsigned int rx_xcnt; + unsigned int rx_ocnt; u64 rx_mcnt; unsigned int toggle_cnt; unsigned int txen; diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c index c302b1a30cba..1d1c3919ab66 100644 --- a/drivers/net/cxgb3/xgmac.c +++ b/drivers/net/cxgb3/xgmac.c @@ -437,12 +437,13 @@ int t3_mac_enable(struct cmac *mac, int which) struct mac_stats *s = &mac->stats; if (which & MAC_DIRECTION_TX) { - t3_write_reg(adap, A_XGM_TX_CTRL + oft, F_TXEN); 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_ADDR, A_TP_TX_DROP_MODE); t3_set_reg_field(adap, A_TP_PIO_DATA, 1 << idx, 1 << idx); + t3_write_reg(adap, A_XGM_TX_CTRL + oft, F_TXEN); + t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CNT_CH0 + idx); mac->tx_mcnt = s->tx_frames; mac->tx_tcnt = (G_TXDROPCNTCH0RCVD(t3_read_reg(adap, @@ -454,6 +455,7 @@ int t3_mac_enable(struct cmac *mac, int which) mac->rx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap, A_XGM_RX_SPI4_SOP_EOP_CNT + oft))); + mac->rx_ocnt = s->rx_fifo_ovfl; mac->txen = F_TXEN; mac->toggle_cnt = 0; } @@ -464,24 +466,19 @@ int t3_mac_enable(struct cmac *mac, int which) int t3_mac_disable(struct cmac *mac, int which) { - int idx = macidx(mac); struct adapter *adap = mac->adapter; - int val; if (which & MAC_DIRECTION_TX) { t3_write_reg(adap, A_XGM_TX_CTRL + mac->offset, 0); - t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CFG_CH0 + idx); - t3_write_reg(adap, A_TP_PIO_DATA, 0xc000001f); - 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); mac->txen = 0; } if (which & MAC_DIRECTION_RX) { + int val = F_MAC_RESET_; + t3_set_reg_field(mac->adapter, A_XGM_RESET_CTRL + mac->offset, F_PCS_RESET_, 0); msleep(100); t3_write_reg(adap, A_XGM_RX_CTRL + mac->offset, 0); - val = F_MAC_RESET_; if (is_10G(adap)) val |= F_PCS_RESET_; else if (uses_xaui(adap)) @@ -541,11 +538,14 @@ int t3b2_mac_watchdog_task(struct cmac *mac) } rxcheck: - if (rx_mcnt != mac->rx_mcnt) + if (rx_mcnt != mac->rx_mcnt) { rx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap, A_XGM_RX_SPI4_SOP_EOP_CNT + - mac->offset))); - else + 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 && |