From 75758e8aa4b7d5c651261ce653dd8d0b716e1eda Mon Sep 17 00:00:00 2001 From: Divy Le Ray Date: Wed, 5 Dec 2007 10:15:01 -0800 Subject: [PATCH] cxgb3 - T3C support update Update GPIO mapping for T3C. Update xgmac for T3C support. Fix typo in mtu table. Signed-off-by: Divy Le Ray Signed-off-by: Jeff Garzik --- drivers/net/cxgb3/regs.h | 27 +++++++++++++++++++++++- drivers/net/cxgb3/t3_hw.c | 6 +++--- drivers/net/cxgb3/xgmac.c | 44 ++++++++++++++++++++++++++------------- 3 files changed, 58 insertions(+), 19 deletions(-) diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h index 5e1bc0dec5f..6e12bf4bc6c 100644 --- a/drivers/net/cxgb3/regs.h +++ b/drivers/net/cxgb3/regs.h @@ -1937,6 +1937,10 @@ #define A_XGM_RXFIFO_CFG 0x884 +#define S_RXFIFO_EMPTY 31 +#define V_RXFIFO_EMPTY(x) ((x) << S_RXFIFO_EMPTY) +#define F_RXFIFO_EMPTY V_RXFIFO_EMPTY(1U) + #define S_RXFIFOPAUSEHWM 17 #define M_RXFIFOPAUSEHWM 0xfff @@ -1961,6 +1965,10 @@ #define A_XGM_TXFIFO_CFG 0x888 +#define S_UNDERUNFIX 22 +#define V_UNDERUNFIX(x) ((x) << S_UNDERUNFIX) +#define F_UNDERUNFIX V_UNDERUNFIX(1U) + #define S_TXIPG 13 #define M_TXIPG 0xff #define V_TXIPG(x) ((x) << S_TXIPG) @@ -2034,10 +2042,27 @@ #define V_XAUIIMP(x) ((x) << S_XAUIIMP) #define A_XGM_RX_MAX_PKT_SIZE 0x8a8 -#define A_XGM_RX_MAX_PKT_SIZE_ERR_CNT 0x9a4 + +#define S_RXMAXFRAMERSIZE 17 +#define M_RXMAXFRAMERSIZE 0x3fff +#define V_RXMAXFRAMERSIZE(x) ((x) << S_RXMAXFRAMERSIZE) +#define G_RXMAXFRAMERSIZE(x) (((x) >> S_RXMAXFRAMERSIZE) & M_RXMAXFRAMERSIZE) + +#define S_RXENFRAMER 14 +#define V_RXENFRAMER(x) ((x) << S_RXENFRAMER) +#define F_RXENFRAMER V_RXENFRAMER(1U) + +#define S_RXMAXPKTSIZE 0 +#define M_RXMAXPKTSIZE 0x3fff +#define V_RXMAXPKTSIZE(x) ((x) << S_RXMAXPKTSIZE) +#define G_RXMAXPKTSIZE(x) (((x) >> S_RXMAXPKTSIZE) & M_RXMAXPKTSIZE) #define A_XGM_RESET_CTRL 0x8ac +#define S_XGMAC_STOP_EN 4 +#define V_XGMAC_STOP_EN(x) ((x) << S_XGMAC_STOP_EN) +#define F_XGMAC_STOP_EN V_XGMAC_STOP_EN(1U) + #define S_XG2G_RESET_ 3 #define V_XG2G_RESET_(x) ((x) << S_XG2G_RESET_) #define F_XG2G_RESET_ V_XG2G_RESET_(1U) diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c index d4ee00d3221..522834c42ae 100644 --- a/drivers/net/cxgb3/t3_hw.c +++ b/drivers/net/cxgb3/t3_hw.c @@ -447,8 +447,8 @@ static const struct adapter_info t3_adap_info[] = { &mi1_mdio_ops, "Chelsio T302"}, {1, 0, 0, 0, F_GPIO1_OEN | F_GPIO6_OEN | F_GPIO7_OEN | F_GPIO10_OEN | - F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL, 0, - SUPPORTED_10000baseT_Full | SUPPORTED_AUI, + F_GPIO11_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL, + 0, SUPPORTED_10000baseT_Full | SUPPORTED_AUI, &mi1_mdio_ext_ops, "Chelsio T310"}, {2, 0, 0, 0, F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO5_OEN | F_GPIO6_OEN | @@ -2613,7 +2613,7 @@ static void __devinit init_mtus(unsigned short mtus[]) * it can accomodate max size TCP/IP headers when SACK and timestamps * are enabled and still have at least 8 bytes of payload. */ - mtus[1] = 88; + mtus[0] = 88; mtus[1] = 88; mtus[2] = 256; mtus[3] = 512; diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c index eeb766aeced..efcf09a709c 100644 --- a/drivers/net/cxgb3/xgmac.c +++ b/drivers/net/cxgb3/xgmac.c @@ -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; -- 2.46.0