示例#1
0
文件: falcon_xmac.c 项目: E-LLP/n900
/* Configure the XAUI driver that is an output from Falcon */
static void falcon_setup_xaui(struct efx_nic *efx)
{
	efx_oword_t sdctl, txdrv;

	/* Move the XAUI into low power, unless there is no PHY, in
	 * which case the XAUI will have to drive a cable. */
	if (efx->phy_type == PHY_TYPE_NONE)
		return;

	falcon_read(efx, &sdctl, XX_SD_CTL_REG);
	EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVD, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_LODRVD, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVC, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_LODRVC, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVB, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_LODRVB, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVA, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_LODRVA, XX_SD_CTL_DRV_DEFAULT);
	falcon_write(efx, &sdctl, XX_SD_CTL_REG);

	EFX_POPULATE_OWORD_8(txdrv,
			     XX_DEQD, XX_TXDRV_DEQ_DEFAULT,
			     XX_DEQC, XX_TXDRV_DEQ_DEFAULT,
			     XX_DEQB, XX_TXDRV_DEQ_DEFAULT,
			     XX_DEQA, XX_TXDRV_DEQ_DEFAULT,
			     XX_DTXD, XX_TXDRV_DTX_DEFAULT,
			     XX_DTXC, XX_TXDRV_DTX_DEFAULT,
			     XX_DTXB, XX_TXDRV_DTX_DEFAULT,
			     XX_DTXA, XX_TXDRV_DTX_DEFAULT);
	falcon_write(efx, &txdrv, XX_TXDRV_CTL_REG);
}
示例#2
0
bool falcon_xaui_link_ok(struct efx_nic *efx)
{
	efx_oword_t reg;
	bool align_done, link_ok = false;
	int sync_status;

	if (LOOPBACK_INTERNAL(efx))
		return true;

	
	falcon_read(efx, &reg, XX_CORE_STAT_REG);

	align_done = EFX_OWORD_FIELD(reg, XX_ALIGN_DONE);
	sync_status = EFX_OWORD_FIELD(reg, XX_SYNC_STAT);
	if (align_done && (sync_status == XX_SYNC_STAT_DECODE_SYNCED))
		link_ok = true;

	
	EFX_SET_OWORD_FIELD(reg, XX_COMMA_DET, XX_COMMA_DET_RESET);
	EFX_SET_OWORD_FIELD(reg, XX_CHARERR, XX_CHARERR_RESET);
	EFX_SET_OWORD_FIELD(reg, XX_DISPERR, XX_DISPERR_RESET);
	falcon_write(efx, &reg, XX_CORE_STAT_REG);

	
	if (efx->link_up && link_ok)
		if (efx->phy_op->mmds & (1 << MDIO_MMD_PHYXS))
			link_ok = efx_mdio_phyxgxs_lane_sync(efx);

	return link_ok;
}
示例#3
0
static void falcon_setup_xaui(struct efx_nic *efx)
{
	efx_oword_t sdctl, txdrv;

	
	if (efx->phy_type == PHY_TYPE_NONE)
		return;

	falcon_read(efx, &sdctl, XX_SD_CTL_REG);
	EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVD, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_LODRVD, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVC, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_LODRVC, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVB, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_LODRVB, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVA, XX_SD_CTL_DRV_DEFAULT);
	EFX_SET_OWORD_FIELD(sdctl, XX_LODRVA, XX_SD_CTL_DRV_DEFAULT);
	falcon_write(efx, &sdctl, XX_SD_CTL_REG);

	EFX_POPULATE_OWORD_8(txdrv,
			     XX_DEQD, XX_TXDRV_DEQ_DEFAULT,
			     XX_DEQC, XX_TXDRV_DEQ_DEFAULT,
			     XX_DEQB, XX_TXDRV_DEQ_DEFAULT,
			     XX_DEQA, XX_TXDRV_DEQ_DEFAULT,
			     XX_DTXD, XX_TXDRV_DTX_DEFAULT,
			     XX_DTXC, XX_TXDRV_DTX_DEFAULT,
			     XX_DTXB, XX_TXDRV_DTX_DEFAULT,
			     XX_DTXA, XX_TXDRV_DTX_DEFAULT);
	falcon_write(efx, &txdrv, XX_TXDRV_CTL_REG);
}
示例#4
0
static void falcon_mask_status_intr(struct efx_nic *efx, bool enable)
{
	efx_oword_t reg;

	if ((falcon_rev(efx) != FALCON_REV_B0) || LOOPBACK_INTERNAL(efx))
		return;

	/* We expect xgmii faults if the wireside link is up */
	if (!EFX_WORKAROUND_5147(efx) || !efx->link_up)
		return;

	/* We can only use this interrupt to signal the negative edge of
	 * xaui_align [we have to poll the positive edge]. */
	if (!efx->mac_up)
		return;

	/* Flush the ISR */
	if (enable)
		falcon_read(efx, &reg, XM_MGT_INT_REG_B0);

	EFX_POPULATE_OWORD_2(reg,
			     XM_MSK_RMTFLT, !enable,
			     XM_MSK_LCLFLT, !enable);
	falcon_write(efx, &reg, XM_MGT_INT_MSK_REG_B0);
}
示例#5
0
文件: falcon_xmac.c 项目: E-LLP/n900
static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
{
	efx_oword_t reg;
	bool xgxs_loopback = (efx->loopback_mode == LOOPBACK_XGXS);
	bool xaui_loopback = (efx->loopback_mode == LOOPBACK_XAUI);
	bool xgmii_loopback = (efx->loopback_mode == LOOPBACK_XGMII);

	/* XGXS block is flaky and will need to be reset if moving
	 * into our out of XGMII, XGXS or XAUI loopbacks. */
	if (EFX_WORKAROUND_5147(efx)) {
		bool old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
		bool reset_xgxs;

		falcon_read(efx, &reg, XX_CORE_STAT_REG);
		old_xgxs_loopback = EFX_OWORD_FIELD(reg, XX_XGXS_LB_EN);
		old_xgmii_loopback = EFX_OWORD_FIELD(reg, XX_XGMII_LB_EN);

		falcon_read(efx, &reg, XX_SD_CTL_REG);
		old_xaui_loopback = EFX_OWORD_FIELD(reg, XX_LPBKA);

		/* The PHY driver may have turned XAUI off */
		reset_xgxs = ((xgxs_loopback != old_xgxs_loopback) ||
			      (xaui_loopback != old_xaui_loopback) ||
			      (xgmii_loopback != old_xgmii_loopback));

		if (reset_xgxs)
			falcon_reset_xaui(efx);
	}

	falcon_read(efx, &reg, XX_CORE_STAT_REG);
	EFX_SET_OWORD_FIELD(reg, XX_FORCE_SIG,
			    (xgxs_loopback || xaui_loopback) ?
			    XX_FORCE_SIG_DECODE_FORCED : 0);
	EFX_SET_OWORD_FIELD(reg, XX_XGXS_LB_EN, xgxs_loopback);
	EFX_SET_OWORD_FIELD(reg, XX_XGMII_LB_EN, xgmii_loopback);
	falcon_write(efx, &reg, XX_CORE_STAT_REG);

	falcon_read(efx, &reg, XX_SD_CTL_REG);
	EFX_SET_OWORD_FIELD(reg, XX_LPBKD, xaui_loopback);
	EFX_SET_OWORD_FIELD(reg, XX_LPBKC, xaui_loopback);
	EFX_SET_OWORD_FIELD(reg, XX_LPBKB, xaui_loopback);
	EFX_SET_OWORD_FIELD(reg, XX_LPBKA, xaui_loopback);
	falcon_write(efx, &reg, XX_SD_CTL_REG);
}
示例#6
0
static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
{
	efx_oword_t reg;
	bool xgxs_loopback = (efx->loopback_mode == LOOPBACK_XGXS);
	bool xaui_loopback = (efx->loopback_mode == LOOPBACK_XAUI);
	bool xgmii_loopback = (efx->loopback_mode == LOOPBACK_XGMII);

	
	if (EFX_WORKAROUND_5147(efx)) {
		bool old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
		bool reset_xgxs;

		falcon_read(efx, &reg, XX_CORE_STAT_REG);
		old_xgxs_loopback = EFX_OWORD_FIELD(reg, XX_XGXS_LB_EN);
		old_xgmii_loopback = EFX_OWORD_FIELD(reg, XX_XGMII_LB_EN);

		falcon_read(efx, &reg, XX_SD_CTL_REG);
		old_xaui_loopback = EFX_OWORD_FIELD(reg, XX_LPBKA);

		
		reset_xgxs = ((xgxs_loopback != old_xgxs_loopback) ||
			      (xaui_loopback != old_xaui_loopback) ||
			      (xgmii_loopback != old_xgmii_loopback));

		if (reset_xgxs)
			falcon_reset_xaui(efx);
	}

	falcon_read(efx, &reg, XX_CORE_STAT_REG);
	EFX_SET_OWORD_FIELD(reg, XX_FORCE_SIG,
			    (xgxs_loopback || xaui_loopback) ?
			    XX_FORCE_SIG_DECODE_FORCED : 0);
	EFX_SET_OWORD_FIELD(reg, XX_XGXS_LB_EN, xgxs_loopback);
	EFX_SET_OWORD_FIELD(reg, XX_XGMII_LB_EN, xgmii_loopback);
	falcon_write(efx, &reg, XX_CORE_STAT_REG);

	falcon_read(efx, &reg, XX_SD_CTL_REG);
	EFX_SET_OWORD_FIELD(reg, XX_LPBKD, xaui_loopback);
	EFX_SET_OWORD_FIELD(reg, XX_LPBKC, xaui_loopback);
	EFX_SET_OWORD_FIELD(reg, XX_LPBKB, xaui_loopback);
	EFX_SET_OWORD_FIELD(reg, XX_LPBKA, xaui_loopback);
	falcon_write(efx, &reg, XX_SD_CTL_REG);
}
示例#7
0
文件: falcon_xmac.c 项目: E-LLP/n900
static bool falcon_xgmii_status(struct efx_nic *efx)
{
	efx_oword_t reg;

	if (falcon_rev(efx) < FALCON_REV_B0)
		return true;

	/* The ISR latches, so clear it and re-read */
	falcon_read(efx, &reg, XM_MGT_INT_REG_B0);
	falcon_read(efx, &reg, XM_MGT_INT_REG_B0);

	if (EFX_OWORD_FIELD(reg, XM_LCLFLT) ||
	    EFX_OWORD_FIELD(reg, XM_RMTFLT)) {
		EFX_INFO(efx, "MGT_INT: "EFX_DWORD_FMT"\n", EFX_DWORD_VAL(reg));
		return false;
	}

	return true;
}
示例#8
0
文件: falcon_xmac.c 项目: E-LLP/n900
static void falcon_mask_status_intr(struct efx_nic *efx, bool enable)
{
	efx_oword_t reg;

	if ((falcon_rev(efx) < FALCON_REV_B0) || LOOPBACK_INTERNAL(efx))
		return;

	/* Flush the ISR */
	if (enable)
		falcon_read(efx, &reg, XM_MGT_INT_REG_B0);

	EFX_POPULATE_OWORD_2(reg,
			     XM_MSK_RMTFLT, !enable,
			     XM_MSK_LCLFLT, !enable);
	falcon_write(efx, &reg, XM_MGT_INT_MSK_REG_B0);
}
示例#9
0
文件: falcon_xmac.c 项目: E-LLP/n900
/**************************************************************************
 *
 * MAC operations
 *
 *************************************************************************/
static int falcon_reset_xmac(struct efx_nic *efx)
{
	efx_oword_t reg;
	int count;

	EFX_POPULATE_OWORD_1(reg, XM_CORE_RST, 1);
	falcon_write(efx, &reg, XM_GLB_CFG_REG);

	for (count = 0; count < 10000; count++) {	/* wait upto 100ms */
		falcon_read(efx, &reg, XM_GLB_CFG_REG);
		if (EFX_OWORD_FIELD(reg, XM_CORE_RST) == 0)
			return 0;
		udelay(10);
	}

	EFX_ERR(efx, "timed out waiting for XMAC core reset\n");
	return -ETIMEDOUT;
}
示例#10
0
文件: falcon_xmac.c 项目: E-LLP/n900
int falcon_reset_xaui(struct efx_nic *efx)
{
	efx_oword_t reg;
	int count;

	EFX_POPULATE_DWORD_1(reg, XX_RST_XX_EN, 1);
	falcon_write(efx, &reg, XX_PWR_RST_REG);

	/* Give some time for the link to establish */
	for (count = 0; count < 1000; count++) { /* wait upto 10ms */
		falcon_read(efx, &reg, XX_PWR_RST_REG);
		if (EFX_OWORD_FIELD(reg, XX_RST_XX_EN) == 0) {
			falcon_setup_xaui(efx);
			return 0;
		}
		udelay(10);
	}
	EFX_ERR(efx, "timed out waiting for XAUI/XGXS reset\n");
	return -ETIMEDOUT;
}
示例#11
0
int falcon_reset_xaui(struct efx_nic *efx)
{
	efx_oword_t reg;
	int count;

	
	EFX_POPULATE_DWORD_1(reg, XX_RST_XX_EN, 1);
	falcon_write(efx, &reg, XX_PWR_RST_REG);

	
	for (count = 0; count < 1000; count++) {
		falcon_read(efx, &reg, XX_PWR_RST_REG);
		if (EFX_OWORD_FIELD(reg, XX_RST_XX_EN) == 0 &&
		    EFX_OWORD_FIELD(reg, XX_SD_RST_ACT) == 0) {
			falcon_setup_xaui(efx);
			return 0;
		}
		udelay(10);
	}
	EFX_ERR(efx, "timed out waiting for XAUI/XGXS reset\n");
	return -ETIMEDOUT;
}
示例#12
0
int falcon_reset_xaui(struct efx_nic *efx)
{
	efx_oword_t reg;
	int count;

	/* Start reset sequence */
	EFX_POPULATE_DWORD_1(reg, XX_RST_XX_EN, 1);
	falcon_write(efx, &reg, XX_PWR_RST_REG);

	/* Wait up to 10 ms for completion, then reinitialise */
	for (count = 0; count < 1000; count++) {
		falcon_read(efx, &reg, XX_PWR_RST_REG);
		if (EFX_OWORD_FIELD(reg, XX_RST_XX_EN) == 0 &&
		    EFX_OWORD_FIELD(reg, XX_SD_RST_ACT) == 0) {
			falcon_setup_xaui(efx);
			return 0;
		}
		udelay(10);
	}
	EFX_ERR(efx, "timed out waiting for XAUI/XGXS reset\n");
	return -ETIMEDOUT;
}
示例#13
0
文件: falcon_xmac.c 项目: E-LLP/n900
bool falcon_xaui_link_ok(struct efx_nic *efx)
{
	efx_oword_t reg;
	bool align_done, link_ok = false;
	int sync_status;

	if (LOOPBACK_INTERNAL(efx))
		return true;

	/* Read link status */
	falcon_read(efx, &reg, XX_CORE_STAT_REG);

	align_done = EFX_OWORD_FIELD(reg, XX_ALIGN_DONE);
	sync_status = EFX_OWORD_FIELD(reg, XX_SYNC_STAT);
	if (align_done && (sync_status == XX_SYNC_STAT_DECODE_SYNCED))
		link_ok = true;

	/* Clear link status ready for next read */
	EFX_SET_OWORD_FIELD(reg, XX_COMMA_DET, XX_COMMA_DET_RESET);
	EFX_SET_OWORD_FIELD(reg, XX_CHARERR, XX_CHARERR_RESET);
	EFX_SET_OWORD_FIELD(reg, XX_DISPERR, XX_DISPERR_RESET);
	falcon_write(efx, &reg, XX_CORE_STAT_REG);

	/* If the link is up, then check the phy side of the xaui link
	 * (error conditions from the wire side propoagate back through
	 * the phy to the xaui side). */
	if (efx->link_up && link_ok) {
		if (efx->phy_op->mmds & (1 << MDIO_MMD_PHYXS))
			link_ok = mdio_clause45_phyxgxs_lane_sync(efx);
	}

	/* If the PHY and XAUI links are up, then check the mac's xgmii
	 * fault state */
	if (efx->link_up && link_ok)
		link_ok = falcon_xgmii_status(efx);

	return link_ok;
}
示例#14
0
static void falcon_mask_status_intr(struct efx_nic *efx, bool enable)
{
	efx_oword_t reg;

	if ((falcon_rev(efx) != FALCON_REV_B0) || LOOPBACK_INTERNAL(efx))
		return;

	
	if (!EFX_WORKAROUND_5147(efx) || !efx->link_up)
		return;

	
	if (!efx->mac_up)
		return;

	
	if (enable)
		falcon_read(efx, &reg, XM_MGT_INT_REG_B0);

	EFX_POPULATE_OWORD_2(reg,
			     XM_MSK_RMTFLT, !enable,
			     XM_MSK_LCLFLT, !enable);
	falcon_write(efx, &reg, XM_MGT_INT_MSK_REG_B0);
}
示例#15
0
static void falcon_reconfigure_gmac(struct efx_nic *efx)
{
	bool loopback, tx_fc, rx_fc, bytemode;
	int if_mode;
	unsigned int max_frame_len;
	efx_oword_t reg;

	/* Configuration register 1 */
	tx_fc = (efx->link_fc & EFX_FC_TX) || !efx->link_fd;
	rx_fc = !!(efx->link_fc & EFX_FC_RX);
	loopback = (efx->loopback_mode == LOOPBACK_GMAC);
	bytemode = (efx->link_speed == 1000);

	EFX_POPULATE_OWORD_5(reg,
			     GM_LOOP, loopback,
			     GM_TX_EN, 1,
			     GM_TX_FC_EN, tx_fc,
			     GM_RX_EN, 1,
			     GM_RX_FC_EN, rx_fc);
	falcon_write(efx, &reg, GM_CFG1_REG);
	udelay(10);

	/* Configuration register 2 */
	if_mode = (bytemode) ? 2 : 1;
	EFX_POPULATE_OWORD_5(reg,
			     GM_IF_MODE, if_mode,
			     GM_PAD_CRC_EN, 1,
			     GM_LEN_CHK, 1,
			     GM_FD, efx->link_fd,
			     GM_PAMBL_LEN, 0x7/*datasheet recommended */);

	falcon_write(efx, &reg, GM_CFG2_REG);
	udelay(10);

	/* Max frame len register */
	max_frame_len = EFX_MAX_FRAME_LEN(efx->net_dev->mtu);
	EFX_POPULATE_OWORD_1(reg, GM_MAX_FLEN, max_frame_len);
	falcon_write(efx, &reg, GM_MAX_FLEN_REG);
	udelay(10);

	/* FIFO configuration register 0 */
	EFX_POPULATE_OWORD_5(reg,
			     GMF_FTFENREQ, 1,
			     GMF_STFENREQ, 1,
			     GMF_FRFENREQ, 1,
			     GMF_SRFENREQ, 1,
			     GMF_WTMENREQ, 1);
	falcon_write(efx, &reg, GMF_CFG0_REG);
	udelay(10);

	/* FIFO configuration register 1 */
	EFX_POPULATE_OWORD_2(reg,
			     GMF_CFGFRTH, 0x12,
			     GMF_CFGXOFFRTX, 0xffff);
	falcon_write(efx, &reg, GMF_CFG1_REG);
	udelay(10);

	/* FIFO configuration register 2 */
	EFX_POPULATE_OWORD_2(reg,
			     GMF_CFGHWM, 0x3f,
			     GMF_CFGLWM, 0xa);
	falcon_write(efx, &reg, GMF_CFG2_REG);
	udelay(10);

	/* FIFO configuration register 3 */
	EFX_POPULATE_OWORD_2(reg,
			     GMF_CFGHWMFT, 0x1c,
			     GMF_CFGFTTH, 0x08);
	falcon_write(efx, &reg, GMF_CFG3_REG);
	udelay(10);

	/* FIFO configuration register 4 */
	EFX_POPULATE_OWORD_1(reg, GMF_HSTFLTRFRM_PAUSE, 1);
	falcon_write(efx, &reg, GMF_CFG4_REG);
	udelay(10);

	/* FIFO configuration register 5 */
	falcon_read(efx, &reg, GMF_CFG5_REG);
	EFX_SET_OWORD_FIELD(reg, GMF_CFGBYTMODE, bytemode);
	EFX_SET_OWORD_FIELD(reg, GMF_CFGHDPLX, !efx->link_fd);
	EFX_SET_OWORD_FIELD(reg, GMF_HSTDRPLT64, !efx->link_fd);
	EFX_SET_OWORD_FIELD(reg, GMF_HSTFLTRFRMDC_PAUSE, 0);
	falcon_write(efx, &reg, GMF_CFG5_REG);
	udelay(10);

	/* MAC address */
	EFX_POPULATE_OWORD_4(reg,
			     GM_HWADDR_5, efx->net_dev->dev_addr[5],
			     GM_HWADDR_4, efx->net_dev->dev_addr[4],
			     GM_HWADDR_3, efx->net_dev->dev_addr[3],
			     GM_HWADDR_2, efx->net_dev->dev_addr[2]);
	falcon_write(efx, &reg, GM_ADR1_REG);
	udelay(10);
	EFX_POPULATE_OWORD_2(reg,
			     GM_HWADDR_1, efx->net_dev->dev_addr[1],
			     GM_HWADDR_0, efx->net_dev->dev_addr[0]);
	falcon_write(efx, &reg, GM_ADR2_REG);
	udelay(10);

	falcon_reconfigure_mac_wrapper(efx);
}