cxgb3 - fix register to stop bc/mc traffic
[linux-3.10.git] / drivers / net / cxgb3 / xgmac.c
index b261be147e7b071590e89d6fd673de996943ccb3..c302b1a30cba3beb7be123446bb8c7cb31e0221b 100644 (file)
@@ -335,11 +335,11 @@ int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu)
        hwm = min(hwm, MAC_RXFIFO_SIZE - 8192);
        lwm = min(3 * (int)mtu, MAC_RXFIFO_SIZE / 4);
 
        hwm = min(hwm, MAC_RXFIFO_SIZE - 8192);
        lwm = min(3 * (int)mtu, MAC_RXFIFO_SIZE / 4);
 
-       v = t3_read_reg(adap, A_XGM_RXFIFO_CFG + mac->offset);
        if (adap->params.rev == T3_REV_B2 &&
            (t3_read_reg(adap, A_XGM_RX_CTRL + mac->offset) & F_RXEN)) {
                disable_exact_filters(mac);
        if (adap->params.rev == T3_REV_B2 &&
            (t3_read_reg(adap, A_XGM_RX_CTRL + mac->offset) & F_RXEN)) {
                disable_exact_filters(mac);
-               t3_set_reg_field(adap, A_XGM_RXFIFO_CFG + mac->offset,
+               v = t3_read_reg(adap, A_XGM_RX_CFG + mac->offset);
+               t3_set_reg_field(adap, A_XGM_RX_CFG + mac->offset,
                                 F_ENHASHMCAST | F_COPYALLFRAMES, F_DISBCAST);
 
                /* drain rx FIFO */
                                 F_ENHASHMCAST | F_COPYALLFRAMES, F_DISBCAST);
 
                /* drain rx FIFO */
@@ -347,11 +347,12 @@ int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu)
                                    A_XGM_RX_MAX_PKT_SIZE_ERR_CNT +
                                    mac->offset,
                                    1 << 31, 1, 20, 5)) {
                                    A_XGM_RX_MAX_PKT_SIZE_ERR_CNT +
                                    mac->offset,
                                    1 << 31, 1, 20, 5)) {
-                       t3_write_reg(adap, A_XGM_RXFIFO_CFG + mac->offset, v);
+                       t3_write_reg(adap, A_XGM_RX_CFG + mac->offset, v);
                        enable_exact_filters(mac);
                        return -EIO;
                }
                t3_write_reg(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, mtu);
                        enable_exact_filters(mac);
                        return -EIO;
                }
                t3_write_reg(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, mtu);
+               t3_write_reg(adap, A_XGM_RX_CFG + mac->offset, v);
                enable_exact_filters(mac);
        } else
                t3_write_reg(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, mtu);
                enable_exact_filters(mac);
        } else
                t3_write_reg(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, mtu);
@@ -362,6 +363,7 @@ int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu)
         */
        hwm = rx_fifo_hwm(mtu);
        lwm = min(3 * (int)mtu, MAC_RXFIFO_SIZE / 4);
         */
        hwm = rx_fifo_hwm(mtu);
        lwm = min(3 * (int)mtu, MAC_RXFIFO_SIZE / 4);
+       v = t3_read_reg(adap, A_XGM_RXFIFO_CFG + mac->offset);
        v &= ~V_RXFIFOPAUSELWM(M_RXFIFOPAUSELWM);
        v |= V_RXFIFOPAUSELWM(lwm / 8);
        if (G_RXFIFOPAUSEHWM(v))
        v &= ~V_RXFIFOPAUSELWM(M_RXFIFOPAUSELWM);
        v |= V_RXFIFOPAUSELWM(lwm / 8);
        if (G_RXFIFOPAUSEHWM(v))