lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

cxgb3 - T3C support update

Browse Source 
Update GPIO mapping for T3C.
Update xgmac for T3C support.
Fix typo in mtu table.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Divy Le Ray
2007-12-05 10:15:01 -08:00
committed by Jeff Garzik
parent fdaea7a93d
commit 75758e8aa4
3 changed files with 58 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
drivers/net/cxgb3/xgmac.c
View File

@ -106,6 +106,7 @@ int t3_mac_reset(struct cmac *mac)
t3_set_reg_field(adap, A_XGM_RXFIFO_CFG + oft,
F_RXSTRFRWRD | F_DISERRFRAMES,
uses_xaui(adap) ? 0 : F_RXSTRFRWRD);
t3_set_reg_field(adap, A_XGM_TXFIFO_CFG + oft, 0, F_UNDERUNFIX);
if (uses_xaui(adap)) {
if (adap->params.rev == 0) {
@ -124,7 +125,11 @@ int t3_mac_reset(struct cmac *mac)
xaui_serdes_reset(mac);
}
val = F_MAC_RESET_;
t3_set_reg_field(adap, A_XGM_RX_MAX_PKT_SIZE + oft,
V_RXMAXFRAMERSIZE(M_RXMAXFRAMERSIZE),
V_RXMAXFRAMERSIZE(MAX_FRAME_SIZE) | F_RXENFRAMER);
val = F_MAC_RESET_ | F_XGMAC_STOP_EN;
if (is_10G(adap))
val |= F_PCS_RESET_;
else if (uses_xaui(adap))
@ -313,8 +318,9 @@ static int rx_fifo_hwm(int mtu)
int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu)
{
int hwm, lwm;
unsigned int thres, v;
int hwm, lwm, divisor;
int ipg;
unsigned int thres, v, reg;
struct adapter *adap = mac->adapter;
/*
@ -335,27 +341,32 @@ 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);
if (adap->params.rev == T3_REV_B2 &&
if (adap->params.rev >= T3_REV_B2 &&
(t3_read_reg(adap, A_XGM_RX_CTRL + mac->offset) & F_RXEN)) {
disable_exact_filters(mac);
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 */
if (t3_wait_op_done(adap,
A_XGM_RX_MAX_PKT_SIZE_ERR_CNT +
mac->offset,
1 << 31, 1, 20, 5)) {
reg = adap->params.rev == T3_REV_B2 ?
A_XGM_RX_MAX_PKT_SIZE_ERR_CNT : A_XGM_RXFIFO_CFG;
/* drain RX FIFO */
if (t3_wait_op_done(adap, reg + mac->offset,
F_RXFIFO_EMPTY, 1, 20, 5)) {
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);
t3_set_reg_field(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset,
V_RXMAXPKTSIZE(M_RXMAXPKTSIZE),
V_RXMAXPKTSIZE(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);
t3_set_reg_field(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset,
V_RXMAXPKTSIZE(M_RXMAXPKTSIZE),
V_RXMAXPKTSIZE(mtu));
/*
* Adjust the PAUSE frame watermarks. We always set the LWM, and the
@ -379,13 +390,16 @@ int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu)
thres /= 10;
thres = mtu > thres ? (mtu - thres + 7) / 8 : 0;
thres = max(thres, 8U); /* need at least 8 */
ipg = (adap->params.rev == T3_REV_C) ? 0 : 1;
t3_set_reg_field(adap, A_XGM_TXFIFO_CFG + mac->offset,
V_TXFIFOTHRESH(M_TXFIFOTHRESH) | V_TXIPG(M_TXIPG),
V_TXFIFOTHRESH(thres) | V_TXIPG(1));
V_TXFIFOTHRESH(thres) | V_TXIPG(ipg));
if (adap->params.rev > 0)
if (adap->params.rev > 0) {
divisor = (adap->params.rev == T3_REV_C) ? 64 : 8;
t3_write_reg(adap, A_XGM_PAUSE_TIMER + mac->offset,
(hwm - lwm) * 4 / 8);
(hwm - lwm) * 4 / divisor);
}
t3_write_reg(adap, A_XGM_TX_PAUSE_QUANTA + mac->offset,
MAC_RXFIFO_SIZE * 4 * 8 / 512);
return 0;
@ -522,7 +536,7 @@ int t3b2_mac_watchdog_task(struct cmac *mac)
goto rxcheck;
}
if ((tx_tcnt != mac->tx_tcnt) && (mac->tx_xcnt == 0)) {
if ((tx_tcnt != mac->tx_tcnt) && (mac->tx_xcnt == 0)) {
if (mac->toggle_cnt > 4) {
status = 2;
goto out;