/****************************************************************************
* Driver for Solarflare Solarstorm network controllers and boards
* Copyright 2005-2006 Fen Systems Ltd.
- * Copyright 2006-2008 Solarflare Communications Inc.
+ * Copyright 2006-2009 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
#include <linux/delay.h>
#include "net_driver.h"
#include "efx.h"
-#include "falcon.h"
-#include "falcon_hwdefs.h"
-#include "falcon_io.h"
+#include "nic.h"
+#include "regs.h"
+#include "io.h"
#include "mac.h"
-#include "gmii.h"
#include "mdio_10g.h"
#include "phy.h"
-#include "boards.h"
#include "workarounds.h"
/**************************************************************************
*
- * MAC register access
- *
- **************************************************************************/
-
-/* Offset of an XMAC register within Falcon */
-#define FALCON_XMAC_REG(mac_reg) \
- (FALCON_XMAC_REGBANK + ((mac_reg) * FALCON_XMAC_REG_SIZE))
-
-void falcon_xmac_writel(struct efx_nic *efx,
- efx_dword_t *value, unsigned int mac_reg)
-{
- efx_oword_t temp;
-
- EFX_POPULATE_OWORD_1(temp, MAC_DATA, EFX_DWORD_FIELD(*value, MAC_DATA));
- falcon_write(efx, &temp, FALCON_XMAC_REG(mac_reg));
-}
-
-void falcon_xmac_readl(struct efx_nic *efx,
- efx_dword_t *value, unsigned int mac_reg)
-{
- efx_oword_t temp;
-
- falcon_read(efx, &temp, FALCON_XMAC_REG(mac_reg));
- EFX_POPULATE_DWORD_1(*value, MAC_DATA, EFX_OWORD_FIELD(temp, MAC_DATA));
-}
-
-/**************************************************************************
- *
* MAC operations
*
*************************************************************************/
-static int falcon_reset_xmac(struct efx_nic *efx)
-{
- efx_dword_t reg;
- int count;
-
- EFX_POPULATE_DWORD_1(reg, XM_CORE_RST, 1);
- falcon_xmac_writel(efx, ®, XM_GLB_CFG_REG_MAC);
-
- for (count = 0; count < 10000; count++) { /* wait upto 100ms */
- falcon_xmac_readl(efx, ®, XM_GLB_CFG_REG_MAC);
- if (EFX_DWORD_FIELD(reg, XM_CORE_RST) == 0)
- return 0;
- udelay(10);
- }
-
- /* This often fails when DSP is disabled, ignore it */
- if (sfe4001_phy_flash_cfg != 0)
- return 0;
-
- EFX_ERR(efx, "timed out waiting for XMAC core reset\n");
- return -ETIMEDOUT;
-}
/* Configure the XAUI driver that is an output from Falcon */
-static void falcon_setup_xaui(struct efx_nic *efx)
+void falcon_setup_xaui(struct efx_nic *efx)
{
- efx_dword_t sdctl, txdrv;
+ 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_xmac_readl(efx, &sdctl, XX_SD_CTL_REG_MAC);
- EFX_SET_DWORD_FIELD(sdctl, XX_HIDRVD, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_LODRVD, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_HIDRVC, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_LODRVC, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_HIDRVB, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_LODRVB, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_HIDRVA, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_LODRVA, XX_SD_CTL_DRV_DEFAULT);
- falcon_xmac_writel(efx, &sdctl, XX_SD_CTL_REG_MAC);
-
- EFX_POPULATE_DWORD_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_xmac_writel(efx, &txdrv, XX_TXDRV_CTL_REG_MAC);
+ efx_reado(efx, &sdctl, FR_AB_XX_SD_CTL);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_HIDRVD, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_LODRVD, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_HIDRVC, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_LODRVC, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_HIDRVB, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_LODRVB, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_HIDRVA, FFE_AB_XX_SD_CTL_DRV_DEF);
+ EFX_SET_OWORD_FIELD(sdctl, FRF_AB_XX_LODRVA, FFE_AB_XX_SD_CTL_DRV_DEF);
+ efx_writeo(efx, &sdctl, FR_AB_XX_SD_CTL);
+
+ EFX_POPULATE_OWORD_8(txdrv,
+ FRF_AB_XX_DEQD, FFE_AB_XX_TXDRV_DEQ_DEF,
+ FRF_AB_XX_DEQC, FFE_AB_XX_TXDRV_DEQ_DEF,
+ FRF_AB_XX_DEQB, FFE_AB_XX_TXDRV_DEQ_DEF,
+ FRF_AB_XX_DEQA, FFE_AB_XX_TXDRV_DEQ_DEF,
+ FRF_AB_XX_DTXD, FFE_AB_XX_TXDRV_DTX_DEF,
+ FRF_AB_XX_DTXC, FFE_AB_XX_TXDRV_DTX_DEF,
+ FRF_AB_XX_DTXB, FFE_AB_XX_TXDRV_DTX_DEF,
+ FRF_AB_XX_DTXA, FFE_AB_XX_TXDRV_DTX_DEF);
+ efx_writeo(efx, &txdrv, FR_AB_XX_TXDRV_CTL);
}
-static void falcon_hold_xaui_in_rst(struct efx_nic *efx)
-{
- efx_dword_t reg;
-
- EFX_ZERO_DWORD(reg);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNA_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNB_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNC_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDND_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTPLLAB_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTPLLCD_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RESETA_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RESETB_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RESETC_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RESETD_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSRX_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSTX_EN, 1);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
- udelay(10);
-}
-
-static int _falcon_reset_xaui_a(struct efx_nic *efx)
-{
- efx_dword_t reg;
-
- falcon_hold_xaui_in_rst(efx);
- falcon_xmac_readl(efx, ®, XX_PWR_RST_REG_MAC);
-
- /* Follow the RAMBUS XAUI data reset sequencing
- * Channels A and B first: power down, reset PLL, reset, clear
- */
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNA_EN, 0);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNB_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
- udelay(10);
-
- EFX_SET_DWORD_FIELD(reg, XX_RSTPLLAB_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
- udelay(10);
-
- EFX_SET_DWORD_FIELD(reg, XX_RESETA_EN, 0);
- EFX_SET_DWORD_FIELD(reg, XX_RESETB_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
- udelay(10);
-
- /* Channels C and D: power down, reset PLL, reset, clear */
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNC_EN, 0);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDND_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
- udelay(10);
-
- EFX_SET_DWORD_FIELD(reg, XX_RSTPLLCD_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
- udelay(10);
-
- EFX_SET_DWORD_FIELD(reg, XX_RESETC_EN, 0);
- EFX_SET_DWORD_FIELD(reg, XX_RESETD_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
- udelay(10);
-
- /* Setup XAUI */
- falcon_setup_xaui(efx);
- udelay(10);
-
- /* Take XGXS out of reset */
- EFX_ZERO_DWORD(reg);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
- udelay(10);
-
- return 0;
-}
-
-static int _falcon_reset_xaui_b(struct efx_nic *efx)
+int falcon_reset_xaui(struct efx_nic *efx)
{
- efx_dword_t reg;
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t reg;
int count;
- EFX_POPULATE_DWORD_1(reg, XX_RST_XX_EN, 1);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ /* Don't fetch MAC statistics over an XMAC reset */
+ WARN_ON(nic_data->stats_disable_count == 0);
- /* Give some time for the link to establish */
- for (count = 0; count < 1000; count++) { /* wait upto 10ms */
- falcon_xmac_readl(efx, ®, XX_PWR_RST_REG_MAC);
- if (EFX_DWORD_FIELD(reg, XX_RST_XX_EN) == 0) {
+ /* Start reset sequence */
+ EFX_POPULATE_OWORD_1(reg, FRF_AB_XX_RST_XX_EN, 1);
+ efx_writeo(efx, ®, FR_AB_XX_PWR_RST);
+
+ /* Wait up to 10 ms for completion, then reinitialise */
+ for (count = 0; count < 1000; count++) {
+ efx_reado(efx, ®, FR_AB_XX_PWR_RST);
+ if (EFX_OWORD_FIELD(reg, FRF_AB_XX_RST_XX_EN) == 0 &&
+ EFX_OWORD_FIELD(reg, FRF_AB_XX_SD_RST_ACT) == 0) {
falcon_setup_xaui(efx);
return 0;
}
return -ETIMEDOUT;
}
-int falcon_reset_xaui(struct efx_nic *efx)
-{
- int rc;
-
- if (EFX_WORKAROUND_9388(efx)) {
- falcon_hold_xaui_in_rst(efx);
- efx->phy_op->reset_xaui(efx);
- rc = _falcon_reset_xaui_a(efx);
- } else {
- rc = _falcon_reset_xaui_b(efx);
- }
- return rc;
-}
-
-static int falcon_xgmii_status(struct efx_nic *efx)
-{
- efx_dword_t reg;
-
- if (falcon_rev(efx) < FALCON_REV_B0)
- return 1;
-
- /* The ISR latches, so clear it and re-read */
- falcon_xmac_readl(efx, ®, XM_MGT_INT_REG_MAC_B0);
- falcon_xmac_readl(efx, ®, XM_MGT_INT_REG_MAC_B0);
-
- if (EFX_DWORD_FIELD(reg, XM_LCLFLT) ||
- EFX_DWORD_FIELD(reg, XM_RMTFLT)) {
- EFX_INFO(efx, "MGT_INT: "EFX_DWORD_FMT"\n", EFX_DWORD_VAL(reg));
- return 0;
- }
-
- return 1;
-}
-
-static void falcon_mask_status_intr(struct efx_nic *efx, int enable)
+static void falcon_ack_status_intr(struct efx_nic *efx)
{
- efx_dword_t reg;
+ efx_oword_t reg;
- if ((falcon_rev(efx) < FALCON_REV_B0) || LOOPBACK_INTERNAL(efx))
+ if ((efx_nic_rev(efx) != EFX_REV_FALCON_B0) || LOOPBACK_INTERNAL(efx))
return;
- /* Flush the ISR */
- if (enable)
- falcon_xmac_readl(efx, ®, XM_MGT_INT_REG_MAC_B0);
-
- EFX_POPULATE_DWORD_2(reg,
- XM_MSK_RMTFLT, !enable,
- XM_MSK_LCLFLT, !enable);
- falcon_xmac_writel(efx, ®, XM_MGT_INT_MSK_REG_MAC_B0);
-}
-
-int falcon_init_xmac(struct efx_nic *efx)
-{
- int rc;
-
- /* Initialize the PHY first so the clock is around */
- rc = efx->phy_op->init(efx);
- if (rc)
- goto fail1;
-
- rc = falcon_reset_xaui(efx);
- if (rc)
- goto fail2;
-
- /* Wait again. Give the PHY and MAC time to come back */
- schedule_timeout_uninterruptible(HZ / 10);
-
- rc = falcon_reset_xmac(efx);
- if (rc)
- goto fail2;
+ /* We expect xgmii faults if the wireside link is down */
+ if (!EFX_WORKAROUND_5147(efx) || !efx->link_state.up)
+ return;
- falcon_mask_status_intr(efx, 1);
- return 0;
+ /* We can only use this interrupt to signal the negative edge of
+ * xaui_align [we have to poll the positive edge]. */
+ if (efx->xmac_poll_required)
+ return;
- fail2:
- efx->phy_op->fini(efx);
- fail1:
- return rc;
+ efx_reado(efx, ®, FR_AB_XM_MGT_INT_MSK);
}
-int falcon_xaui_link_ok(struct efx_nic *efx)
+static bool falcon_xgxs_link_ok(struct efx_nic *efx)
{
- efx_dword_t reg;
- int align_done, sync_status, link_ok = 0;
-
- if (LOOPBACK_INTERNAL(efx))
- return 1;
+ efx_oword_t reg;
+ bool align_done, link_ok = false;
+ int sync_status;
/* Read link status */
- falcon_xmac_readl(efx, ®, XX_CORE_STAT_REG_MAC);
+ efx_reado(efx, ®, FR_AB_XX_CORE_STAT);
- align_done = EFX_DWORD_FIELD(reg, XX_ALIGN_DONE);
- sync_status = EFX_DWORD_FIELD(reg, XX_SYNC_STAT);
- if (align_done && (sync_status == XX_SYNC_STAT_DECODE_SYNCED))
- link_ok = 1;
+ align_done = EFX_OWORD_FIELD(reg, FRF_AB_XX_ALIGN_DONE);
+ sync_status = EFX_OWORD_FIELD(reg, FRF_AB_XX_SYNC_STAT);
+ if (align_done && (sync_status == FFE_AB_XX_STAT_ALL_LANES))
+ link_ok = true;
/* Clear link status ready for next read */
- EFX_SET_DWORD_FIELD(reg, XX_COMMA_DET, XX_COMMA_DET_RESET);
- EFX_SET_DWORD_FIELD(reg, XX_CHARERR, XX_CHARERR_RESET);
- EFX_SET_DWORD_FIELD(reg, XX_DISPERR, XX_DISPERR_RESET);
- falcon_xmac_writel(efx, ®, XX_CORE_STAT_REG_MAC);
-
- /* 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) {
- int has_phyxs = efx->phy_op->mmds & (1 << MDIO_MMD_PHYXS);
- if (has_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);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_COMMA_DET, FFE_AB_XX_STAT_ALL_LANES);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_CHAR_ERR, FFE_AB_XX_STAT_ALL_LANES);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_DISPERR, FFE_AB_XX_STAT_ALL_LANES);
+ efx_writeo(efx, ®, FR_AB_XX_CORE_STAT);
return link_ok;
}
-static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
+static bool falcon_xmac_link_ok(struct efx_nic *efx)
+{
+ /*
+ * Check MAC's XGXS link status except when using XGMII loopback
+ * which bypasses the XGXS block.
+ * If possible, check PHY's XGXS link status except when using
+ * MAC loopback.
+ */
+ return (efx->loopback_mode == LOOPBACK_XGMII ||
+ falcon_xgxs_link_ok(efx)) &&
+ (!(efx->mdio.mmds & (1 << MDIO_MMD_PHYXS)) ||
+ LOOPBACK_INTERNAL(efx) ||
+ efx_mdio_phyxgxs_lane_sync(efx));
+}
+
+void falcon_reconfigure_xmac_core(struct efx_nic *efx)
{
unsigned int max_frame_len;
- efx_dword_t reg;
- int rx_fc = (efx->flow_control & EFX_FC_RX) ? 1 : 0;
+ efx_oword_t reg;
+ bool rx_fc = !!(efx->link_state.fc & EFX_FC_RX);
+ bool tx_fc = !!(efx->link_state.fc & EFX_FC_TX);
/* Configure MAC - cut-thru mode is hard wired on */
- EFX_POPULATE_DWORD_3(reg,
- XM_RX_JUMBO_MODE, 1,
- XM_TX_STAT_EN, 1,
- XM_RX_STAT_EN, 1);
- falcon_xmac_writel(efx, ®, XM_GLB_CFG_REG_MAC);
+ EFX_POPULATE_OWORD_3(reg,
+ FRF_AB_XM_RX_JUMBO_MODE, 1,
+ FRF_AB_XM_TX_STAT_EN, 1,
+ FRF_AB_XM_RX_STAT_EN, 1);
+ efx_writeo(efx, ®, FR_AB_XM_GLB_CFG);
/* Configure TX */
- EFX_POPULATE_DWORD_6(reg,
- XM_TXEN, 1,
- XM_TX_PRMBL, 1,
- XM_AUTO_PAD, 1,
- XM_TXCRC, 1,
- XM_FCNTL, 1,
- XM_IPG, 0x3);
- falcon_xmac_writel(efx, ®, XM_TX_CFG_REG_MAC);
+ EFX_POPULATE_OWORD_6(reg,
+ FRF_AB_XM_TXEN, 1,
+ FRF_AB_XM_TX_PRMBL, 1,
+ FRF_AB_XM_AUTO_PAD, 1,
+ FRF_AB_XM_TXCRC, 1,
+ FRF_AB_XM_FCNTL, tx_fc,
+ FRF_AB_XM_IPG, 0x3);
+ efx_writeo(efx, ®, FR_AB_XM_TX_CFG);
/* Configure RX */
- EFX_POPULATE_DWORD_5(reg,
- XM_RXEN, 1,
- XM_AUTO_DEPAD, 0,
- XM_ACPT_ALL_MCAST, 1,
- XM_ACPT_ALL_UCAST, efx->promiscuous,
- XM_PASS_CRC_ERR, 1);
- falcon_xmac_writel(efx, ®, XM_RX_CFG_REG_MAC);
+ EFX_POPULATE_OWORD_5(reg,
+ FRF_AB_XM_RXEN, 1,
+ FRF_AB_XM_AUTO_DEPAD, 0,
+ FRF_AB_XM_ACPT_ALL_MCAST, 1,
+ FRF_AB_XM_ACPT_ALL_UCAST, efx->promiscuous,
+ FRF_AB_XM_PASS_CRC_ERR, 1);
+ efx_writeo(efx, ®, FR_AB_XM_RX_CFG);
/* Set frame length */
max_frame_len = EFX_MAX_FRAME_LEN(efx->net_dev->mtu);
- EFX_POPULATE_DWORD_1(reg, XM_MAX_RX_FRM_SIZE, max_frame_len);
- falcon_xmac_writel(efx, ®, XM_RX_PARAM_REG_MAC);
- EFX_POPULATE_DWORD_2(reg,
- XM_MAX_TX_FRM_SIZE, max_frame_len,
- XM_TX_JUMBO_MODE, 1);
- falcon_xmac_writel(efx, ®, XM_TX_PARAM_REG_MAC);
-
- EFX_POPULATE_DWORD_2(reg,
- XM_PAUSE_TIME, 0xfffe, /* MAX PAUSE TIME */
- XM_DIS_FCNTL, rx_fc ? 0 : 1);
- falcon_xmac_writel(efx, ®, XM_FC_REG_MAC);
+ EFX_POPULATE_OWORD_1(reg, FRF_AB_XM_MAX_RX_FRM_SIZE, max_frame_len);
+ efx_writeo(efx, ®, FR_AB_XM_RX_PARAM);
+ EFX_POPULATE_OWORD_2(reg,
+ FRF_AB_XM_MAX_TX_FRM_SIZE, max_frame_len,
+ FRF_AB_XM_TX_JUMBO_MODE, 1);
+ efx_writeo(efx, ®, FR_AB_XM_TX_PARAM);
+
+ EFX_POPULATE_OWORD_2(reg,
+ FRF_AB_XM_PAUSE_TIME, 0xfffe, /* MAX PAUSE TIME */
+ FRF_AB_XM_DIS_FCNTL, !rx_fc);
+ efx_writeo(efx, ®, FR_AB_XM_FC);
/* Set MAC address */
- EFX_POPULATE_DWORD_4(reg,
- XM_ADR_0, efx->net_dev->dev_addr[0],
- XM_ADR_1, efx->net_dev->dev_addr[1],
- XM_ADR_2, efx->net_dev->dev_addr[2],
- XM_ADR_3, efx->net_dev->dev_addr[3]);
- falcon_xmac_writel(efx, ®, XM_ADR_LO_REG_MAC);
- EFX_POPULATE_DWORD_2(reg,
- XM_ADR_4, efx->net_dev->dev_addr[4],
- XM_ADR_5, efx->net_dev->dev_addr[5]);
- falcon_xmac_writel(efx, ®, XM_ADR_HI_REG_MAC);
+ memcpy(®, &efx->net_dev->dev_addr[0], 4);
+ efx_writeo(efx, ®, FR_AB_XM_ADR_LO);
+ memcpy(®, &efx->net_dev->dev_addr[4], 2);
+ efx_writeo(efx, ®, FR_AB_XM_ADR_HI);
}
static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
{
- efx_dword_t reg;
- int xgxs_loopback = (efx->loopback_mode == LOOPBACK_XGXS) ? 1 : 0;
- int xaui_loopback = (efx->loopback_mode == LOOPBACK_XAUI) ? 1 : 0;
- int xgmii_loopback =
- (efx->loopback_mode == LOOPBACK_XGMII) ? 1 : 0;
+ 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)) {
- int old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
- int reset_xgxs;
+ bool old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
+ bool reset_xgxs;
- falcon_xmac_readl(efx, ®, XX_CORE_STAT_REG_MAC);
- old_xgxs_loopback = EFX_DWORD_FIELD(reg, XX_XGXS_LB_EN);
- old_xgmii_loopback = EFX_DWORD_FIELD(reg, XX_XGMII_LB_EN);
+ efx_reado(efx, ®, FR_AB_XX_CORE_STAT);
+ old_xgxs_loopback = EFX_OWORD_FIELD(reg, FRF_AB_XX_XGXS_LB_EN);
+ old_xgmii_loopback =
+ EFX_OWORD_FIELD(reg, FRF_AB_XX_XGMII_LB_EN);
- falcon_xmac_readl(efx, ®, XX_SD_CTL_REG_MAC);
- old_xaui_loopback = EFX_DWORD_FIELD(reg, XX_LPBKA);
+ efx_reado(efx, ®, FR_AB_XX_SD_CTL);
+ old_xaui_loopback = EFX_OWORD_FIELD(reg, FRF_AB_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_xmac_readl(efx, ®, XX_PWR_RST_REG_MAC);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSTX_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSRX_EN, 1);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
- udelay(1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSTX_EN, 0);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSRX_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
- udelay(1);
- }
+
+ if (reset_xgxs)
+ falcon_reset_xaui(efx);
}
- falcon_xmac_readl(efx, ®, XX_CORE_STAT_REG_MAC);
- EFX_SET_DWORD_FIELD(reg, XX_FORCE_SIG,
+ efx_reado(efx, ®, FR_AB_XX_CORE_STAT);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_FORCE_SIG,
(xgxs_loopback || xaui_loopback) ?
- XX_FORCE_SIG_DECODE_FORCED : 0);
- EFX_SET_DWORD_FIELD(reg, XX_XGXS_LB_EN, xgxs_loopback);
- EFX_SET_DWORD_FIELD(reg, XX_XGMII_LB_EN, xgmii_loopback);
- falcon_xmac_writel(efx, ®, XX_CORE_STAT_REG_MAC);
-
- falcon_xmac_readl(efx, ®, XX_SD_CTL_REG_MAC);
- EFX_SET_DWORD_FIELD(reg, XX_LPBKD, xaui_loopback);
- EFX_SET_DWORD_FIELD(reg, XX_LPBKC, xaui_loopback);
- EFX_SET_DWORD_FIELD(reg, XX_LPBKB, xaui_loopback);
- EFX_SET_DWORD_FIELD(reg, XX_LPBKA, xaui_loopback);
- falcon_xmac_writel(efx, ®, XX_SD_CTL_REG_MAC);
+ FFE_AB_XX_FORCE_SIG_ALL_LANES : 0);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_XGXS_LB_EN, xgxs_loopback);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_XGMII_LB_EN, xgmii_loopback);
+ efx_writeo(efx, ®, FR_AB_XX_CORE_STAT);
+
+ efx_reado(efx, ®, FR_AB_XX_SD_CTL);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_LPBKD, xaui_loopback);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_LPBKC, xaui_loopback);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_LPBKB, xaui_loopback);
+ EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_LPBKA, xaui_loopback);
+ efx_writeo(efx, ®, FR_AB_XX_SD_CTL);
}
-/* Try and bring the Falcon side of the Falcon-Phy XAUI link fails
- * to come back up. Bash it until it comes back up */
-static int falcon_check_xaui_link_up(struct efx_nic *efx)
+/* Try to bring up the Falcon side of the Falcon-Phy XAUI link */
+static bool falcon_xmac_link_ok_retry(struct efx_nic *efx, int tries)
{
- int max_tries, tries;
- tries = EFX_WORKAROUND_5147(efx) ? 5 : 1;
- max_tries = tries;
+ bool mac_up = falcon_xmac_link_ok(efx);
- if ((efx->loopback_mode == LOOPBACK_NETWORK) ||
- (efx->phy_type == PHY_TYPE_NONE))
- return 0;
+ if (LOOPBACK_MASK(efx) & LOOPBACKS_EXTERNAL(efx) & LOOPBACKS_WS ||
+ efx_phy_mode_disabled(efx->phy_mode))
+ /* XAUI link is expected to be down */
+ return mac_up;
- while (tries) {
- if (falcon_xaui_link_ok(efx))
- return 1;
+ falcon_stop_nic_stats(efx);
- EFX_LOG(efx, "%s Clobbering XAUI (%d tries left).\n",
- __func__, tries);
+ while (!mac_up && tries) {
+ EFX_LOG(efx, "bashing xaui\n");
falcon_reset_xaui(efx);
udelay(200);
- tries--;
+
+ mac_up = falcon_xmac_link_ok(efx);
+ --tries;
}
- EFX_ERR(efx, "Failed to bring XAUI link back up in %d tries!\n",
- max_tries);
- return 0;
+ falcon_start_nic_stats(efx);
+
+ return mac_up;
}
-void falcon_reconfigure_xmac(struct efx_nic *efx)
+static bool falcon_xmac_check_fault(struct efx_nic *efx)
{
- int xaui_link_ok;
-
- falcon_mask_status_intr(efx, 0);
-
- falcon_deconfigure_mac_wrapper(efx);
-
- efx->tx_disabled = LOOPBACK_INTERNAL(efx);
- efx->phy_op->reconfigure(efx);
+ return !falcon_xmac_link_ok_retry(efx, 5);
+}
+static int falcon_reconfigure_xmac(struct efx_nic *efx)
+{
falcon_reconfigure_xgxs_core(efx);
falcon_reconfigure_xmac_core(efx);
falcon_reconfigure_mac_wrapper(efx);
- /* Ensure XAUI link is up */
- xaui_link_ok = falcon_check_xaui_link_up(efx);
-
- if (xaui_link_ok && efx->link_up)
- falcon_mask_status_intr(efx, 1);
-}
-
-void falcon_fini_xmac(struct efx_nic *efx)
-{
- /* Isolate the MAC - PHY */
- falcon_deconfigure_mac_wrapper(efx);
+ efx->xmac_poll_required = !falcon_xmac_link_ok_retry(efx, 5);
+ falcon_ack_status_intr(efx);
- /* Potentially power down the PHY */
- efx->phy_op->fini(efx);
+ return 0;
}
-void falcon_update_stats_xmac(struct efx_nic *efx)
+static void falcon_update_stats_xmac(struct efx_nic *efx)
{
struct efx_mac_stats *mac_stats = &efx->mac_stats;
- int rc;
-
- rc = falcon_dma_stats(efx, XgDmaDone_offset);
- if (rc)
- return;
/* Update MAC stats from DMAed values */
FALCON_STAT(efx, XgRxOctets, rx_bytes);
/* Update derived statistics */
mac_stats->tx_good_bytes =
- (mac_stats->tx_bytes - mac_stats->tx_bad_bytes);
+ (mac_stats->tx_bytes - mac_stats->tx_bad_bytes -
+ mac_stats->tx_control * 64);
mac_stats->rx_bad_bytes =
- (mac_stats->rx_bytes - mac_stats->rx_good_bytes);
+ (mac_stats->rx_bytes - mac_stats->rx_good_bytes -
+ mac_stats->rx_control * 64);
}
-int falcon_check_xmac(struct efx_nic *efx)
+void falcon_poll_xmac(struct efx_nic *efx)
{
- unsigned xaui_link_ok;
- int rc;
-
- if ((efx->loopback_mode == LOOPBACK_NETWORK) ||
- (efx->phy_type == PHY_TYPE_NONE))
- return 0;
-
- falcon_mask_status_intr(efx, 0);
- xaui_link_ok = falcon_xaui_link_ok(efx);
-
- if (EFX_WORKAROUND_5147(efx) && !xaui_link_ok)
- falcon_reset_xaui(efx);
-
- /* Call the PHY check_hw routine */
- rc = efx->phy_op->check_hw(efx);
-
- /* Unmask interrupt if everything was (and still is) ok */
- if (xaui_link_ok && efx->link_up)
- falcon_mask_status_intr(efx, 1);
-
- return rc;
-}
-
-/* Simulate a PHY event */
-void falcon_xmac_sim_phy_event(struct efx_nic *efx)
-{
- efx_qword_t phy_event;
-
- EFX_POPULATE_QWORD_2(phy_event,
- EV_CODE, GLOBAL_EV_DECODE,
- XG_PHY_INTR, 1);
- falcon_generate_event(&efx->channel[0], &phy_event);
-}
-
-int falcon_xmac_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
-{
- mdio_clause45_get_settings(efx, ecmd);
- ecmd->transceiver = XCVR_INTERNAL;
- ecmd->phy_address = efx->mii.phy_id;
- ecmd->autoneg = AUTONEG_DISABLE;
- ecmd->duplex = DUPLEX_FULL;
- return 0;
-}
+ if (!EFX_WORKAROUND_5147(efx) || !efx->link_state.up ||
+ !efx->xmac_poll_required)
+ return;
-int falcon_xmac_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
-{
- if (ecmd->transceiver != XCVR_INTERNAL)
- return -EINVAL;
- if (ecmd->autoneg != AUTONEG_DISABLE)
- return -EINVAL;
- if (ecmd->duplex != DUPLEX_FULL)
- return -EINVAL;
-
- return mdio_clause45_set_settings(efx, ecmd);
+ efx->xmac_poll_required = !falcon_xmac_link_ok_retry(efx, 1);
+ falcon_ack_status_intr(efx);
}
-
-int falcon_xmac_set_pause(struct efx_nic *efx, enum efx_fc_type flow_control)
-{
- int reset;
-
- if (flow_control & EFX_FC_AUTO) {
- EFX_LOG(efx, "10G does not support flow control "
- "autonegotiation\n");
- return -EINVAL;
- }
-
- if ((flow_control & EFX_FC_TX) && !(flow_control & EFX_FC_RX))
- return -EINVAL;
-
- /* TX flow control may automatically turn itself off if the
- * link partner (intermittently) stops responding to pause
- * frames. There isn't any indication that this has happened,
- * so the best we do is leave it up to the user to spot this
- * and fix it be cycling transmit flow control on this end. */
- reset = ((flow_control & EFX_FC_TX) &&
- !(efx->flow_control & EFX_FC_TX));
- if (EFX_WORKAROUND_11482(efx) && reset) {
- if (falcon_rev(efx) >= FALCON_REV_B0) {
- /* Recover by resetting the EM block */
- if (efx->link_up)
- falcon_drain_tx_fifo(efx);
- } else {
- /* Schedule a reset to recover */
- efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
- }
- }
-
- efx->flow_control = flow_control;
-
- return 0;
-}
+struct efx_mac_operations falcon_xmac_operations = {
+ .reconfigure = falcon_reconfigure_xmac,
+ .update_stats = falcon_update_stats_xmac,
+ .check_fault = falcon_xmac_check_fault,
+};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff