diff options
Diffstat (limited to 'drivers/net/sfc/tenxpress.c')
| -rw-r--r-- | drivers/net/sfc/tenxpress.c | 864 |
1 files changed, 0 insertions, 864 deletions
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c deleted file mode 100644 index f21efe7bd31..00000000000 --- a/drivers/net/sfc/tenxpress.c +++ /dev/null @@ -1,864 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare Solarstorm network controllers and boards - * Copyright 2007-2009 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 - * by the Free Software Foundation, incorporated herein by reference. - */ - -#include <linux/delay.h> -#include <linux/rtnetlink.h> -#include <linux/seq_file.h> -#include <linux/slab.h> -#include "efx.h" -#include "mdio_10g.h" -#include "nic.h" -#include "phy.h" -#include "regs.h" -#include "workarounds.h" -#include "selftest.h" - -/* We expect these MMDs to be in the package. SFT9001 also has a - * clause 22 extension MMD, but since it doesn't have all the generic - * MMD registers it is pointless to include it here. - */ -#define TENXPRESS_REQUIRED_DEVS (MDIO_DEVS_PMAPMD | \ - MDIO_DEVS_PCS | \ - MDIO_DEVS_PHYXS | \ - MDIO_DEVS_AN) - -#define SFX7101_LOOPBACKS ((1 << LOOPBACK_PHYXS) | \ - (1 << LOOPBACK_PCS) | \ - (1 << LOOPBACK_PMAPMD) | \ - (1 << LOOPBACK_PHYXS_WS)) - -#define SFT9001_LOOPBACKS ((1 << LOOPBACK_GPHY) | \ - (1 << LOOPBACK_PHYXS) | \ - (1 << LOOPBACK_PCS) | \ - (1 << LOOPBACK_PMAPMD) | \ - (1 << LOOPBACK_PHYXS_WS)) - -/* We complain if we fail to see the link partner as 10G capable this many - * times in a row (must be > 1 as sampling the autoneg. registers is racy) - */ -#define MAX_BAD_LP_TRIES (5) - -/* Extended control register */ -#define PMA_PMD_XCONTROL_REG 49152 -#define PMA_PMD_EXT_GMII_EN_LBN 1 -#define PMA_PMD_EXT_GMII_EN_WIDTH 1 -#define PMA_PMD_EXT_CLK_OUT_LBN 2 -#define PMA_PMD_EXT_CLK_OUT_WIDTH 1 -#define PMA_PMD_LNPGA_POWERDOWN_LBN 8 /* SFX7101 only */ -#define PMA_PMD_LNPGA_POWERDOWN_WIDTH 1 -#define PMA_PMD_EXT_CLK312_LBN 8 /* SFT9001 only */ -#define PMA_PMD_EXT_CLK312_WIDTH 1 -#define PMA_PMD_EXT_LPOWER_LBN 12 -#define PMA_PMD_EXT_LPOWER_WIDTH 1 -#define PMA_PMD_EXT_ROBUST_LBN 14 -#define PMA_PMD_EXT_ROBUST_WIDTH 1 -#define PMA_PMD_EXT_SSR_LBN 15 -#define PMA_PMD_EXT_SSR_WIDTH 1 - -/* extended status register */ -#define PMA_PMD_XSTATUS_REG 49153 -#define PMA_PMD_XSTAT_MDIX_LBN 14 -#define PMA_PMD_XSTAT_FLP_LBN (12) - -/* LED control register */ -#define PMA_PMD_LED_CTRL_REG 49159 -#define PMA_PMA_LED_ACTIVITY_LBN (3) - -/* LED function override register */ -#define PMA_PMD_LED_OVERR_REG 49161 -/* Bit positions for different LEDs (there are more but not wired on SFE4001)*/ -#define PMA_PMD_LED_LINK_LBN (0) -#define PMA_PMD_LED_SPEED_LBN (2) -#define PMA_PMD_LED_TX_LBN (4) -#define PMA_PMD_LED_RX_LBN (6) -/* Override settings */ -#define PMA_PMD_LED_AUTO (0) /* H/W control */ -#define PMA_PMD_LED_ON (1) -#define PMA_PMD_LED_OFF (2) -#define PMA_PMD_LED_FLASH (3) -#define PMA_PMD_LED_MASK 3 -/* All LEDs under hardware control */ -#define SFT9001_PMA_PMD_LED_DEFAULT 0 -/* Green and Amber under hardware control, Red off */ -#define SFX7101_PMA_PMD_LED_DEFAULT (PMA_PMD_LED_OFF << PMA_PMD_LED_RX_LBN) - -#define PMA_PMD_SPEED_ENABLE_REG 49192 -#define PMA_PMD_100TX_ADV_LBN 1 -#define PMA_PMD_100TX_ADV_WIDTH 1 -#define PMA_PMD_1000T_ADV_LBN 2 -#define PMA_PMD_1000T_ADV_WIDTH 1 -#define PMA_PMD_10000T_ADV_LBN 3 -#define PMA_PMD_10000T_ADV_WIDTH 1 -#define PMA_PMD_SPEED_LBN 4 -#define PMA_PMD_SPEED_WIDTH 4 - -/* Cable diagnostics - SFT9001 only */ -#define PMA_PMD_CDIAG_CTRL_REG 49213 -#define CDIAG_CTRL_IMMED_LBN 15 -#define CDIAG_CTRL_BRK_LINK_LBN 12 -#define CDIAG_CTRL_IN_PROG_LBN 11 -#define CDIAG_CTRL_LEN_UNIT_LBN 10 -#define CDIAG_CTRL_LEN_METRES 1 -#define PMA_PMD_CDIAG_RES_REG 49174 -#define CDIAG_RES_A_LBN 12 -#define CDIAG_RES_B_LBN 8 -#define CDIAG_RES_C_LBN 4 -#define CDIAG_RES_D_LBN 0 -#define CDIAG_RES_WIDTH 4 -#define CDIAG_RES_OPEN 2 -#define CDIAG_RES_OK 1 -#define CDIAG_RES_INVALID 0 -/* Set of 4 registers for pairs A-D */ -#define PMA_PMD_CDIAG_LEN_REG 49175 - -/* Serdes control registers - SFT9001 only */ -#define PMA_PMD_CSERDES_CTRL_REG 64258 -/* Set the 156.25 MHz output to 312.5 MHz to drive Falcon's XMAC */ -#define PMA_PMD_CSERDES_DEFAULT 0x000f - -/* Misc register defines - SFX7101 only */ -#define PCS_CLOCK_CTRL_REG 55297 -#define PLL312_RST_N_LBN 2 - -#define PCS_SOFT_RST2_REG 55302 -#define SERDES_RST_N_LBN 13 -#define XGXS_RST_N_LBN 12 - -#define PCS_TEST_SELECT_REG 55303 /* PRM 10.5.8 */ -#define CLK312_EN_LBN 3 - -/* PHYXS registers */ -#define PHYXS_XCONTROL_REG 49152 -#define PHYXS_RESET_LBN 15 -#define PHYXS_RESET_WIDTH 1 - -#define PHYXS_TEST1 (49162) -#define LOOPBACK_NEAR_LBN (8) -#define LOOPBACK_NEAR_WIDTH (1) - -/* Boot status register */ -#define PCS_BOOT_STATUS_REG 53248 -#define PCS_BOOT_FATAL_ERROR_LBN 0 -#define PCS_BOOT_PROGRESS_LBN 1 -#define PCS_BOOT_PROGRESS_WIDTH 2 -#define PCS_BOOT_PROGRESS_INIT 0 -#define PCS_BOOT_PROGRESS_WAIT_MDIO 1 -#define PCS_BOOT_PROGRESS_CHECKSUM 2 -#define PCS_BOOT_PROGRESS_JUMP 3 -#define PCS_BOOT_DOWNLOAD_WAIT_LBN 3 -#define PCS_BOOT_CODE_STARTED_LBN 4 - -/* 100M/1G PHY registers */ -#define GPHY_XCONTROL_REG 49152 -#define GPHY_ISOLATE_LBN 10 -#define GPHY_ISOLATE_WIDTH 1 -#define GPHY_DUPLEX_LBN 8 -#define GPHY_DUPLEX_WIDTH 1 -#define GPHY_LOOPBACK_NEAR_LBN 14 -#define GPHY_LOOPBACK_NEAR_WIDTH 1 - -#define C22EXT_STATUS_REG 49153 -#define C22EXT_STATUS_LINK_LBN 2 -#define C22EXT_STATUS_LINK_WIDTH 1 - -#define C22EXT_MSTSLV_CTRL 49161 -#define C22EXT_MSTSLV_CTRL_ADV_1000_HD_LBN 8 -#define C22EXT_MSTSLV_CTRL_ADV_1000_FD_LBN 9 - -#define C22EXT_MSTSLV_STATUS 49162 -#define C22EXT_MSTSLV_STATUS_LP_1000_HD_LBN 10 -#define C22EXT_MSTSLV_STATUS_LP_1000_FD_LBN 11 - -/* Time to wait between powering down the LNPGA and turning off the power - * rails */ -#define LNPGA_PDOWN_WAIT (HZ / 5) - -struct tenxpress_phy_data { - enum efx_loopback_mode loopback_mode; - enum efx_phy_mode phy_mode; - int bad_lp_tries; -}; - -static ssize_t show_phy_short_reach(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev)); - int reg; - - reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD, MDIO_PMA_10GBT_TXPWR); - return sprintf(buf, "%d\n", !!(reg & MDIO_PMA_10GBT_TXPWR_SHORT)); -} - -static ssize_t set_phy_short_reach(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev)); - int rc; - - rtnl_lock(); - if (efx->state != STATE_RUNNING) { - rc = -EBUSY; - } else { - efx_mdio_set_flag(efx, MDIO_MMD_PMAPMD, MDIO_PMA_10GBT_TXPWR, - MDIO_PMA_10GBT_TXPWR_SHORT, - count != 0 && *buf != '0'); - rc = efx_reconfigure_port(efx); - } - rtnl_unlock(); - - return rc < 0 ? rc : (ssize_t)count; -} - -static DEVICE_ATTR(phy_short_reach, 0644, show_phy_short_reach, - set_phy_short_reach); - -int sft9001_wait_boot(struct efx_nic *efx) -{ - unsigned long timeout = jiffies + HZ + 1; - int boot_stat; - - for (;;) { - boot_stat = efx_mdio_read(efx, MDIO_MMD_PCS, - PCS_BOOT_STATUS_REG); - if (boot_stat >= 0) { - EFX_LOG(efx, "PHY boot status = %#x\n", boot_stat); - switch (boot_stat & - ((1 << PCS_BOOT_FATAL_ERROR_LBN) | - (3 << PCS_BOOT_PROGRESS_LBN) | - (1 << PCS_BOOT_DOWNLOAD_WAIT_LBN) | - (1 << PCS_BOOT_CODE_STARTED_LBN))) { - case ((1 << PCS_BOOT_FATAL_ERROR_LBN) | - (PCS_BOOT_PROGRESS_CHECKSUM << - PCS_BOOT_PROGRESS_LBN)): - case ((1 << PCS_BOOT_FATAL_ERROR_LBN) | - (PCS_BOOT_PROGRESS_INIT << - PCS_BOOT_PROGRESS_LBN) | - (1 << PCS_BOOT_DOWNLOAD_WAIT_LBN)): - return -EINVAL; - case ((PCS_BOOT_PROGRESS_WAIT_MDIO << - PCS_BOOT_PROGRESS_LBN) | - (1 << PCS_BOOT_DOWNLOAD_WAIT_LBN)): - return (efx->phy_mode & PHY_MODE_SPECIAL) ? - 0 : -EIO; - case ((PCS_BOOT_PROGRESS_JUMP << - PCS_BOOT_PROGRESS_LBN) | - (1 << PCS_BOOT_CODE_STARTED_LBN)): - case ((PCS_BOOT_PROGRESS_JUMP << - PCS_BOOT_PROGRESS_LBN) | - (1 << PCS_BOOT_DOWNLOAD_WAIT_LBN) | - (1 << PCS_BOOT_CODE_STARTED_LBN)): - return (efx->phy_mode & PHY_MODE_SPECIAL) ? - -EIO : 0; - default: - if (boot_stat & (1 << PCS_BOOT_FATAL_ERROR_LBN)) - return -EIO; - break; - } - } - - if (time_after_eq(jiffies, timeout)) - return -ETIMEDOUT; - - msleep(50); - } -} - -static int tenxpress_init(struct efx_nic *efx) -{ - int reg; - - if (efx->phy_type == PHY_TYPE_SFX7101) { - /* Enable 312.5 MHz clock */ - efx_mdio_write(efx, MDIO_MMD_PCS, PCS_TEST_SELECT_REG, - 1 << CLK312_EN_LBN); - } else { - /* Enable 312.5 MHz clock and GMII */ - reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG); - reg |= ((1 << PMA_PMD_EXT_GMII_EN_LBN) | - (1 << PMA_PMD_EXT_CLK_OUT_LBN) | - (1 << PMA_PMD_EXT_CLK312_LBN) | - (1 << PMA_PMD_EXT_ROBUST_LBN)); - - efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG, reg); - efx_mdio_set_flag(efx, MDIO_MMD_C22EXT, - GPHY_XCONTROL_REG, 1 << GPHY_ISOLATE_LBN, - false); - } - - /* Set the LEDs up as: Green = Link, Amber = Link/Act, Red = Off */ - if (efx->phy_type == PHY_TYPE_SFX7101) { - efx_mdio_set_flag(efx, MDIO_MMD_PMAPMD, PMA_PMD_LED_CTRL_REG, - 1 << PMA_PMA_LED_ACTIVITY_LBN, true); - efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_LED_OVERR_REG, - SFX7101_PMA_PMD_LED_DEFAULT); - } - - return 0; -} - -static int tenxpress_phy_probe(struct efx_nic *efx) -{ - struct tenxpress_phy_data *phy_data; - int rc; - - /* Allocate phy private storage */ - phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL); - if (!phy_data) - return -ENOMEM; - efx->phy_data = phy_data; - phy_data->phy_mode = efx->phy_mode; - - /* Create any special files */ - if (efx->phy_type == PHY_TYPE_SFT9001B) { - rc = device_create_file(&efx->pci_dev->dev, - &dev_attr_phy_short_reach); - if (rc) - goto fail; - } - - if (efx->phy_type == PHY_TYPE_SFX7101) { - efx->mdio.mmds = TENXPRESS_REQUIRED_DEVS; - efx->mdio.mode_support = MDIO_SUPPORTS_C45; - - efx->loopback_modes = SFX7101_LOOPBACKS | FALCON_XMAC_LOOPBACKS; - - efx->link_advertising = (ADVERTISED_TP | ADVERTISED_Autoneg | - ADVERTISED_10000baseT_Full); - } else { - efx->mdio.mmds = TENXPRESS_REQUIRED_DEVS; - efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; - - efx->loopback_modes = (SFT9001_LOOPBACKS | - FALCON_XMAC_LOOPBACKS | - FALCON_GMAC_LOOPBACKS); - - efx->link_advertising = (ADVERTISED_TP | ADVERTISED_Autoneg | - ADVERTISED_10000baseT_Full | - ADVERTISED_1000baseT_Full | - ADVERTISED_100baseT_Full); - } - - return 0; - -fail: - kfree(efx->phy_data); - efx->phy_data = NULL; - return rc; -} - -static int tenxpress_phy_init(struct efx_nic *efx) -{ - int rc; - - falcon_board(efx)->type->init_phy(efx); - - if (!(efx->phy_mode & PHY_MODE_SPECIAL)) { - if (efx->phy_type == PHY_TYPE_SFT9001A) { - int reg; - reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD, - PMA_PMD_XCONTROL_REG); - reg |= (1 << PMA_PMD_EXT_SSR_LBN); - efx_mdio_write(efx, MDIO_MMD_PMAPMD, - PMA_PMD_XCONTROL_REG, reg); - mdelay(200); - } - - rc = efx_mdio_wait_reset_mmds(efx, TENXPRESS_REQUIRED_DEVS); - if (rc < 0) - return rc; - - rc = efx_mdio_check_mmds(efx, TENXPRESS_REQUIRED_DEVS, 0); - if (rc < 0) - return rc; - } - - rc = tenxpress_init(efx); - if (rc < 0) - return rc; - - /* Reinitialise flow control settings */ - efx_link_set_wanted_fc(efx, efx->wanted_fc); - efx_mdio_an_reconfigure(efx); - - schedule_timeout_uninterruptible(HZ / 5); /* 200ms */ - - /* Let XGXS and SerDes out of reset */ - falcon_reset_xaui(efx); - - return 0; -} - -/* Perform a "special software reset" on the PHY. The caller is - * responsible for saving and restoring the PHY hardware registers - * properly, and masking/unmasking LASI */ -static int tenxpress_special_reset(struct efx_nic *efx) -{ - int rc, reg; - - /* The XGMAC clock is driven from the SFC7101/SFT9001 312MHz clock, so - * a special software reset can glitch the XGMAC sufficiently for stats - * requests to fail. */ - falcon_stop_nic_stats(efx); - - /* Initiate reset */ - reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG); - reg |= (1 << PMA_PMD_EXT_SSR_LBN); - efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG, reg); - - mdelay(200); - - /* Wait for the blocks to come out of reset */ - rc = efx_mdio_wait_reset_mmds(efx, TENXPRESS_REQUIRED_DEVS); - if (rc < 0) - goto out; - - /* Try and reconfigure the device */ - rc = tenxpress_init(efx); - if (rc < 0) - goto out; - - /* Wait for the XGXS state machine to churn */ - mdelay(10); -out: - falcon_start_nic_stats(efx); - return rc; -} - -static void sfx7101_check_bad_lp(struct efx_nic *efx, bool link_ok) -{ - struct tenxpress_phy_data *pd = efx->phy_data; - bool bad_lp; - int reg; - - if (link_ok) { - bad_lp = false; - } else { - /* Check that AN has started but not completed. */ - reg = efx_mdio_read(efx, MDIO_MMD_AN, MDIO_STAT1); - if (!(reg & MDIO_AN_STAT1_LPABLE)) - return; /* LP status is unknown */ - bad_lp = !(reg & MDIO_AN_STAT1_COMPLETE); - if (bad_lp) - pd->bad_lp_tries++; - } - - /* Nothing to do if all is well and was previously so. */ - if (!pd->bad_lp_tries) - return; - - /* Use the RX (red) LED as an error indicator once we've seen AN - * failure several times in a row, and also log a message. */ - if (!bad_lp || pd->bad_lp_tries == MAX_BAD_LP_TRIES) { - reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD, - PMA_PMD_LED_OVERR_REG); - reg &= ~(PMA_PMD_LED_MASK << PMA_PMD_LED_RX_LBN); - if (!bad_lp) { - reg |= PMA_PMD_LED_OFF << PMA_PMD_LED_RX_LBN; - } else { - reg |= PMA_PMD_LED_FLASH << PMA_PMD_LED_RX_LBN; - EFX_ERR(efx, "appears to be plugged into a port" - " that is not 10GBASE-T capable. The PHY" - " supports 10GBASE-T ONLY, so no link can" - " be established\n"); - } - efx_mdio_write(efx, MDIO_MMD_PMAPMD, - PMA_PMD_LED_OVERR_REG, reg); - pd->bad_lp_tries = bad_lp; - } -} - -static bool sfx7101_link_ok(struct efx_nic *efx) -{ - return efx_mdio_links_ok(efx, - MDIO_DEVS_PMAPMD | - MDIO_DEVS_PCS | - MDIO_DEVS_PHYXS); -} - -static bool sft9001_link_ok(struct efx_nic *efx, struct ethtool_cmd *ecmd) -{ - u32 reg; - - if (efx_phy_mode_disabled(efx->phy_mode)) - return false; - else if (efx->loopback_mode == LOOPBACK_GPHY) - return true; - else if (efx->loopback_mode) - return efx_mdio_links_ok(efx, - MDIO_DEVS_PMAPMD | - MDIO_DEVS_PHYXS); - - /* We must use the same definition of link state as LASI, - * otherwise we can miss a link state transition - */ - if (ecmd->speed == 10000) { - reg = efx_mdio_read(efx, MDIO_MMD_PCS, MDIO_PCS_10GBRT_STAT1); - return reg & MDIO_PCS_10GBRT_STAT1_BLKLK; - } else { - reg = efx_mdio_read(efx, MDIO_MMD_C22EXT, C22EXT_STATUS_REG); - return reg & (1 << C22EXT_STATUS_LINK_LBN); - } -} - -static void tenxpress_ext_loopback(struct efx_nic *efx) -{ - efx_mdio_set_flag(efx, MDIO_MMD_PHYXS, PHYXS_TEST1, - 1 << LOOPBACK_NEAR_LBN, - efx->loopback_mode == LOOPBACK_PHYXS); - if (efx->phy_type != PHY_TYPE_SFX7101) - efx_mdio_set_flag(efx, MDIO_MMD_C22EXT, GPHY_XCONTROL_REG, - 1 << GPHY_LOOPBACK_NEAR_LBN, - efx->loopback_mode == LOOPBACK_GPHY); -} - -static void tenxpress_low_power(struct efx_nic *efx) -{ - if (efx->phy_type == PHY_TYPE_SFX7101) - efx_mdio_set_mmds_lpower( - efx, !!(efx->phy_mode & PHY_MODE_LOW_POWER), - TENXPRESS_REQUIRED_DEVS); - else - efx_mdio_set_flag( - efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG, - 1 << PMA_PMD_EXT_LPOWER_LBN, - !!(efx->phy_mode & PHY_MODE_LOW_POWER)); -} - -static int tenxpress_phy_reconfigure(struct efx_nic *efx) -{ - struct tenxpress_phy_data *phy_data = efx->phy_data; - bool phy_mode_change, loop_reset; - - if (efx->phy_mode & (PHY_MODE_OFF | PHY_MODE_SPECIAL)) { - phy_data->phy_mode = efx->phy_mode; - return 0; - } - - phy_mode_change = (efx->phy_mode == PHY_MODE_NORMAL && - phy_data->phy_mode != PHY_MODE_NORMAL); - loop_reset = (LOOPBACK_OUT_OF(phy_data, efx, LOOPBACKS_EXTERNAL(efx)) || - LOOPBACK_CHANGED(phy_data, efx, 1 << LOOPBACK_GPHY)); - - if (loop_reset || phy_mode_change) { - tenxpress_special_reset(efx); - - /* Reset XAUI if we were in 10G, and are staying - * in 10G. If we're moving into and out of 10G - * then xaui will be reset anyway */ - if (EFX_IS10G(efx)) - falcon_reset_xaui(efx); - } - - tenxpress_low_power(efx); - efx_mdio_transmit_disable(efx); - efx_mdio_phy_reconfigure(efx); - tenxpress_ext_loopback(efx); - efx_mdio_an_reconfigure(efx); - - phy_data->loopback_mode = efx->loopback_mode; - phy_data->phy_mode = efx->phy_mode; - - return 0; -} - -static void -tenxpress_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd); - -/* Poll for link state changes */ -static bool tenxpress_phy_poll(struct efx_nic *efx) -{ - struct efx_link_state old_state = efx->link_state; - - if (efx->phy_type == PHY_TYPE_SFX7101) { - efx->link_state.up = sfx7101_link_ok(efx); - efx->link_state.speed = 10000; - efx->link_state.fd = true; - efx->link_state.fc = efx_mdio_get_pause(efx); - - sfx7101_check_bad_lp(efx, efx->link_state.up); - } else { - struct ethtool_cmd ecmd; - - /* Check the LASI alarm first */ - if (efx->loopback_mode == LOOPBACK_NONE && - !(efx_mdio_read(efx, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_STAT) & - MDIO_PMA_LASI_LSALARM)) - return false; - - tenxpress_get_settings(efx, &ecmd); - - efx->link_state.up = sft9001_link_ok(efx, &ecmd); - efx->link_state.speed = ecmd.speed; - efx->link_state.fd = (ecmd.duplex == DUPLEX_FULL); - efx->link_state.fc = efx_mdio_get_pause(efx); - } - - return !efx_link_state_equal(&efx->link_state, &old_state); -} - -static void sfx7101_phy_fini(struct efx_nic *efx) -{ - int reg; - - /* Power down the LNPGA */ - reg = (1 << PMA_PMD_LNPGA_POWERDOWN_LBN); - efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG, reg); - - /* Waiting here ensures that the board fini, which can turn - * off the power to the PHY, won't get run until the LNPGA - * powerdown has been given long enough to complete. */ - schedule_timeout_uninterruptible(LNPGA_PDOWN_WAIT); /* 200 ms */ -} - -static void tenxpress_phy_remove(struct efx_nic *efx) -{ - if (efx->phy_type == PHY_TYPE_SFT9001B) - device_remove_file(&efx->pci_dev->dev, - &dev_attr_phy_short_reach); - - kfree(efx->phy_data); - efx->phy_data = NULL; -} - - -/* Override the RX, TX and link LEDs */ -void tenxpress_set_id_led(struct efx_nic *efx, enum efx_led_mode mode) -{ - int reg; - - switch (mode) { - case EFX_LED_OFF: - reg = (PMA_PMD_LED_OFF << PMA_PMD_LED_TX_LBN) | - (PMA_PMD_LED_OFF << PMA_PMD_LED_RX_LBN) | - (PMA_PMD_LED_OFF << PMA_PMD_LED_LINK_LBN); - break; - case EFX_LED_ON: - reg = (PMA_PMD_LED_ON << PMA_PMD_LED_TX_LBN) | - (PMA_PMD_LED_ON << PMA_PMD_LED_RX_LBN) | - (PMA_PMD_LED_ON << PMA_PMD_LED_LINK_LBN); - break; - default: - if (efx->phy_type == PHY_TYPE_SFX7101) - reg = SFX7101_PMA_PMD_LED_DEFAULT; - else - reg = SFT9001_PMA_PMD_LED_DEFAULT; - break; - } - - efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_LED_OVERR_REG, reg); -} - -static const char *const sfx7101_test_names[] = { - "bist" -}; - -static const char *sfx7101_test_name(struct efx_nic *efx, unsigned int index) -{ - if (index < ARRAY_SIZE(sfx7101_test_names)) - return sfx7101_test_names[index]; - return NULL; -} - -static int -sfx7101_run_tests(struct efx_nic *efx, int *results, unsigned flags) -{ - int rc; - - if (!(flags & ETH_TEST_FL_OFFLINE)) - return 0; - - /* BIST is automatically run after a special software reset */ - rc = tenxpress_special_reset(efx); - results[0] = rc ? -1 : 1; - - efx_mdio_an_reconfigure(efx); - - return rc; -} - -static const char *const sft9001_test_names[] = { - "bist", - "cable.pairA.status", - "cable.pairB.status", - "cable.pairC.status", - "cable.pairD.status", - "cable.pairA.length", - "cable.pairB.length", - "cable.pairC.length", - "cable.pairD.length", -}; - -static const char *sft9001_test_name(struct efx_nic *efx, unsigned int index) -{ - if (index < ARRAY_SIZE(sft9001_test_names)) - return sft9001_test_names[index]; - return NULL; -} - -static int sft9001_run_tests(struct efx_nic *efx, int *results, unsigned flags) -{ - int rc = 0, rc2, i, ctrl_reg, res_reg; - - /* Initialise cable diagnostic results to unknown failure */ - for (i = 1; i < 9; ++i) - results[i] = -1; - - /* Run cable diagnostics; wait up to 5 seconds for them to complete. - * A cable fault is not a self-test failure, but a timeout is. */ - ctrl_reg = ((1 << CDIAG_CTRL_IMMED_LBN) | - (CDIAG_CTRL_LEN_METRES << CDIAG_CTRL_LEN_UNIT_LBN)); - if (flags & ETH_TEST_FL_OFFLINE) { - /* Break the link in order to run full diagnostics. We - * must reset the PHY to resume normal service. */ - ctrl_reg |= (1 << CDIAG_CTRL_BRK_LINK_LBN); - } - efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_CDIAG_CTRL_REG, - ctrl_reg); - i = 0; - while (efx_mdio_read(efx, MDIO_MMD_PMAPMD, PMA_PMD_CDIAG_CTRL_REG) & - (1 << CDIAG_CTRL_IN_PROG_LBN)) { - if (++i == 50) { - rc = -ETIMEDOUT; - goto out; - } - msleep(100); - } - res_reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD, PMA_PMD_CDIAG_RES_REG); - for (i = 0; i < 4; i++) { - int pair_res = - (res_reg >> (CDIAG_RES_A_LBN - i * CDIAG_RES_WIDTH)) - & ((1 << CDIAG_RES_WIDTH) - 1); - int len_reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD, - PMA_PMD_CDIAG_LEN_REG + i); - if (pair_res == CDIAG_RES_OK) - results[1 + i] = 1; - else if (pair_res == CDIAG_RES_INVALID) - results[1 + i] = -1; - else - results[1 + i] = -pair_res; - if (pair_res != CDIAG_RES_INVALID && - pair_res != CDIAG_RES_OPEN && - len_reg != 0xffff) - results[5 + i] = len_reg; - } - -out: - if (flags & ETH_TEST_FL_OFFLINE) { - /* Reset, running the BIST and then resuming normal service. */ - rc2 = tenxpress_special_reset(efx); - results[0] = rc2 ? -1 : 1; - if (!rc) - rc = rc2; - - efx_mdio_an_reconfigure(efx); - } - - return rc; -} - -static void -tenxpress_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) -{ - u32 adv = 0, lpa = 0; - int reg; - - if (efx->phy_type != PHY_TYPE_SFX7101) { - reg = efx_mdio_read(efx, MDIO_MMD_C22EXT, C22EXT_MSTSLV_CTRL); - if (reg & (1 << C22EXT_MSTSLV_CTRL_ADV_1000_FD_LBN)) - adv |= ADVERTISED_1000baseT_Full; - reg = efx_mdio_read(efx, MDIO_MMD_C22EXT, C22EXT_MSTSLV_STATUS); - if (reg & (1 << C22EXT_MSTSLV_STATUS_LP_1000_HD_LBN)) - lpa |= ADVERTISED_1000baseT_Half; - if (reg & (1 << C22EXT_MSTSLV_STATUS_LP_1000_FD_LBN)) - lpa |= ADVERTISED_1000baseT_Full; - } - reg = efx_mdio_read(efx, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL); - if (reg & MDIO_AN_10GBT_CTRL_ADV10G) - adv |= ADVERTISED_10000baseT_Full; - reg = efx_mdio_read(efx, MDIO_MMD_AN, MDIO_AN_10GBT_STAT); - if (reg & MDIO_AN_10GBT_STAT_LP10G) - lpa |= ADVERTISED_10000baseT_Full; - - mdio45_ethtool_gset_npage(&efx->mdio, ecmd, adv, lpa); - - if (efx->phy_type != PHY_TYPE_SFX7101) { - ecmd->supported |= (SUPPORTED_100baseT_Full | - SUPPORTED_1000baseT_Full); - if (ecmd->speed != SPEED_10000) { - ecmd->eth_tp_mdix = - (efx_mdio_read(efx, MDIO_MMD_PMAPMD, - PMA_PMD_XSTATUS_REG) & - (1 << PMA_PMD_XSTAT_MDIX_LBN)) - ? ETH_TP_MDI_X : ETH_TP_MDI; - } - } - - /* In loopback, the PHY automatically brings up the correct interface, - * but doesn't advertise the correct speed. So override it */ - if (efx->loopback_mode == LOOPBACK_GPHY) - ecmd->speed = SPEED_1000; - else if (LOOPBACK_EXTERNAL(efx)) - ecmd->speed = SPEED_10000; -} - -static int tenxpress_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) -{ - if (!ecmd->autoneg) - return -EINVAL; - - return efx_mdio_set_settings(efx, ecmd); -} - -static void sfx7101_set_npage_adv(struct efx_nic *efx, u32 advertising) -{ - efx_mdio_set_flag(efx, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL, - MDIO_AN_10GBT_CTRL_ADV10G, - advertising & ADVERTISED_10000baseT_Full); -} - -static void sft9001_set_npage_adv(struct efx_nic *efx, u32 advertising) -{ - efx_mdio_set_flag(efx, MDIO_MMD_C22EXT, C22EXT_MSTSLV_CTRL, - 1 << C22EXT_MSTSLV_CTRL_ADV_1000_FD_LBN, - advertising & ADVERTISED_1000baseT_Full); - efx_mdio_set_flag(efx, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL, - MDIO_AN_10GBT_CTRL_ADV10G, - advertising & ADVERTISED_10000baseT_Full); -} - -struct efx_phy_operations falcon_sfx7101_phy_ops = { - .probe = tenxpress_phy_probe, - .init = tenxpress_phy_init, - .reconfigure = tenxpress_phy_reconfigure, - .poll = tenxpress_phy_poll, - .fini = sfx7101_phy_fini, - .remove = tenxpress_phy_remove, - .get_settings = tenxpress_get_settings, - .set_settings = tenxpress_set_settings, - .set_npage_adv = sfx7101_set_npage_adv, - .test_alive = efx_mdio_test_alive, - .test_name = sfx7101_test_name, - .run_tests = sfx7101_run_tests, -}; - -struct efx_phy_operations falcon_sft9001_phy_ops = { - .probe = tenxpress_phy_probe, - .init = tenxpress_phy_init, - .reconfigure = tenxpress_phy_reconfigure, - .poll = tenxpress_phy_poll, - .fini = efx_port_dummy_op_void, - .remove = tenxpress_phy_remove, - .get_settings = tenxpress_get_settings, - .set_settings = tenxpress_set_settings, - .set_npage_adv = sft9001_set_npage_adv, - .test_alive = efx_mdio_test_alive, - .test_name = sft9001_test_name, - .run_tests = sft9001_run_tests, -}; |