mirror of https://gitee.com/openkylin/linux.git
862 lines
24 KiB
C
862 lines
24 KiB
C
/****************************************************************************
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* Driver for Solarflare Solarstorm network controllers and boards
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* Copyright 2007-2009 Solarflare Communications Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation, incorporated herein by reference.
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*/
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#include <linux/delay.h>
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#include <linux/rtnetlink.h>
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#include <linux/seq_file.h>
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#include "efx.h"
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#include "mdio_10g.h"
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#include "nic.h"
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#include "phy.h"
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#include "regs.h"
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#include "workarounds.h"
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#include "selftest.h"
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/* We expect these MMDs to be in the package. SFT9001 also has a
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* clause 22 extension MMD, but since it doesn't have all the generic
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* MMD registers it is pointless to include it here.
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*/
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#define TENXPRESS_REQUIRED_DEVS (MDIO_DEVS_PMAPMD | \
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MDIO_DEVS_PCS | \
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MDIO_DEVS_PHYXS | \
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MDIO_DEVS_AN)
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#define SFX7101_LOOPBACKS ((1 << LOOPBACK_PHYXS) | \
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(1 << LOOPBACK_PCS) | \
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(1 << LOOPBACK_PMAPMD) | \
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(1 << LOOPBACK_PHYXS_WS))
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#define SFT9001_LOOPBACKS ((1 << LOOPBACK_GPHY) | \
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(1 << LOOPBACK_PHYXS) | \
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(1 << LOOPBACK_PCS) | \
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(1 << LOOPBACK_PMAPMD) | \
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(1 << LOOPBACK_PHYXS_WS))
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/* We complain if we fail to see the link partner as 10G capable this many
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* times in a row (must be > 1 as sampling the autoneg. registers is racy)
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*/
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#define MAX_BAD_LP_TRIES (5)
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/* Extended control register */
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#define PMA_PMD_XCONTROL_REG 49152
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#define PMA_PMD_EXT_GMII_EN_LBN 1
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#define PMA_PMD_EXT_GMII_EN_WIDTH 1
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#define PMA_PMD_EXT_CLK_OUT_LBN 2
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#define PMA_PMD_EXT_CLK_OUT_WIDTH 1
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#define PMA_PMD_LNPGA_POWERDOWN_LBN 8 /* SFX7101 only */
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#define PMA_PMD_LNPGA_POWERDOWN_WIDTH 1
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#define PMA_PMD_EXT_CLK312_LBN 8 /* SFT9001 only */
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#define PMA_PMD_EXT_CLK312_WIDTH 1
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#define PMA_PMD_EXT_LPOWER_LBN 12
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#define PMA_PMD_EXT_LPOWER_WIDTH 1
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#define PMA_PMD_EXT_ROBUST_LBN 14
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#define PMA_PMD_EXT_ROBUST_WIDTH 1
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#define PMA_PMD_EXT_SSR_LBN 15
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#define PMA_PMD_EXT_SSR_WIDTH 1
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/* extended status register */
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#define PMA_PMD_XSTATUS_REG 49153
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#define PMA_PMD_XSTAT_MDIX_LBN 14
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#define PMA_PMD_XSTAT_FLP_LBN (12)
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/* LED control register */
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#define PMA_PMD_LED_CTRL_REG 49159
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#define PMA_PMA_LED_ACTIVITY_LBN (3)
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/* LED function override register */
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#define PMA_PMD_LED_OVERR_REG 49161
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/* Bit positions for different LEDs (there are more but not wired on SFE4001)*/
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#define PMA_PMD_LED_LINK_LBN (0)
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#define PMA_PMD_LED_SPEED_LBN (2)
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#define PMA_PMD_LED_TX_LBN (4)
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#define PMA_PMD_LED_RX_LBN (6)
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/* Override settings */
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#define PMA_PMD_LED_AUTO (0) /* H/W control */
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#define PMA_PMD_LED_ON (1)
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#define PMA_PMD_LED_OFF (2)
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#define PMA_PMD_LED_FLASH (3)
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#define PMA_PMD_LED_MASK 3
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/* All LEDs under hardware control */
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#define SFT9001_PMA_PMD_LED_DEFAULT 0
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/* Green and Amber under hardware control, Red off */
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#define SFX7101_PMA_PMD_LED_DEFAULT (PMA_PMD_LED_OFF << PMA_PMD_LED_RX_LBN)
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#define PMA_PMD_SPEED_ENABLE_REG 49192
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#define PMA_PMD_100TX_ADV_LBN 1
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#define PMA_PMD_100TX_ADV_WIDTH 1
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#define PMA_PMD_1000T_ADV_LBN 2
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#define PMA_PMD_1000T_ADV_WIDTH 1
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#define PMA_PMD_10000T_ADV_LBN 3
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#define PMA_PMD_10000T_ADV_WIDTH 1
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#define PMA_PMD_SPEED_LBN 4
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#define PMA_PMD_SPEED_WIDTH 4
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/* Cable diagnostics - SFT9001 only */
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#define PMA_PMD_CDIAG_CTRL_REG 49213
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#define CDIAG_CTRL_IMMED_LBN 15
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#define CDIAG_CTRL_BRK_LINK_LBN 12
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#define CDIAG_CTRL_IN_PROG_LBN 11
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#define CDIAG_CTRL_LEN_UNIT_LBN 10
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#define CDIAG_CTRL_LEN_METRES 1
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#define PMA_PMD_CDIAG_RES_REG 49174
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#define CDIAG_RES_A_LBN 12
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#define CDIAG_RES_B_LBN 8
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#define CDIAG_RES_C_LBN 4
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#define CDIAG_RES_D_LBN 0
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#define CDIAG_RES_WIDTH 4
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#define CDIAG_RES_OPEN 2
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#define CDIAG_RES_OK 1
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#define CDIAG_RES_INVALID 0
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/* Set of 4 registers for pairs A-D */
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#define PMA_PMD_CDIAG_LEN_REG 49175
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/* Serdes control registers - SFT9001 only */
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#define PMA_PMD_CSERDES_CTRL_REG 64258
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/* Set the 156.25 MHz output to 312.5 MHz to drive Falcon's XMAC */
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#define PMA_PMD_CSERDES_DEFAULT 0x000f
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/* Misc register defines - SFX7101 only */
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#define PCS_CLOCK_CTRL_REG 55297
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#define PLL312_RST_N_LBN 2
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#define PCS_SOFT_RST2_REG 55302
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#define SERDES_RST_N_LBN 13
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#define XGXS_RST_N_LBN 12
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#define PCS_TEST_SELECT_REG 55303 /* PRM 10.5.8 */
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#define CLK312_EN_LBN 3
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/* PHYXS registers */
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#define PHYXS_XCONTROL_REG 49152
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#define PHYXS_RESET_LBN 15
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#define PHYXS_RESET_WIDTH 1
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#define PHYXS_TEST1 (49162)
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#define LOOPBACK_NEAR_LBN (8)
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#define LOOPBACK_NEAR_WIDTH (1)
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/* Boot status register */
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#define PCS_BOOT_STATUS_REG 53248
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#define PCS_BOOT_FATAL_ERROR_LBN 0
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#define PCS_BOOT_PROGRESS_LBN 1
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#define PCS_BOOT_PROGRESS_WIDTH 2
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#define PCS_BOOT_PROGRESS_INIT 0
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#define PCS_BOOT_PROGRESS_WAIT_MDIO 1
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#define PCS_BOOT_PROGRESS_CHECKSUM 2
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#define PCS_BOOT_PROGRESS_JUMP 3
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#define PCS_BOOT_DOWNLOAD_WAIT_LBN 3
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#define PCS_BOOT_CODE_STARTED_LBN 4
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/* 100M/1G PHY registers */
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#define GPHY_XCONTROL_REG 49152
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#define GPHY_ISOLATE_LBN 10
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#define GPHY_ISOLATE_WIDTH 1
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#define GPHY_DUPLEX_LBN 8
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#define GPHY_DUPLEX_WIDTH 1
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#define GPHY_LOOPBACK_NEAR_LBN 14
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#define GPHY_LOOPBACK_NEAR_WIDTH 1
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#define C22EXT_STATUS_REG 49153
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#define C22EXT_STATUS_LINK_LBN 2
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#define C22EXT_STATUS_LINK_WIDTH 1
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#define C22EXT_MSTSLV_CTRL 49161
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#define C22EXT_MSTSLV_CTRL_ADV_1000_HD_LBN 8
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#define C22EXT_MSTSLV_CTRL_ADV_1000_FD_LBN 9
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#define C22EXT_MSTSLV_STATUS 49162
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#define C22EXT_MSTSLV_STATUS_LP_1000_HD_LBN 10
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#define C22EXT_MSTSLV_STATUS_LP_1000_FD_LBN 11
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/* Time to wait between powering down the LNPGA and turning off the power
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* rails */
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#define LNPGA_PDOWN_WAIT (HZ / 5)
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struct tenxpress_phy_data {
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enum efx_loopback_mode loopback_mode;
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enum efx_phy_mode phy_mode;
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int bad_lp_tries;
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};
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static ssize_t show_phy_short_reach(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
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int reg;
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reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD, MDIO_PMA_10GBT_TXPWR);
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return sprintf(buf, "%d\n", !!(reg & MDIO_PMA_10GBT_TXPWR_SHORT));
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}
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static ssize_t set_phy_short_reach(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
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int rc;
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rtnl_lock();
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if (efx->state != STATE_RUNNING) {
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rc = -EBUSY;
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} else {
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efx_mdio_set_flag(efx, MDIO_MMD_PMAPMD, MDIO_PMA_10GBT_TXPWR,
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MDIO_PMA_10GBT_TXPWR_SHORT,
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count != 0 && *buf != '0');
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rc = efx_reconfigure_port(efx);
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}
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rtnl_unlock();
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return rc < 0 ? rc : (ssize_t)count;
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}
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static DEVICE_ATTR(phy_short_reach, 0644, show_phy_short_reach,
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set_phy_short_reach);
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int sft9001_wait_boot(struct efx_nic *efx)
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{
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unsigned long timeout = jiffies + HZ + 1;
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int boot_stat;
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for (;;) {
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boot_stat = efx_mdio_read(efx, MDIO_MMD_PCS,
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PCS_BOOT_STATUS_REG);
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if (boot_stat >= 0) {
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EFX_LOG(efx, "PHY boot status = %#x\n", boot_stat);
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switch (boot_stat &
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((1 << PCS_BOOT_FATAL_ERROR_LBN) |
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(3 << PCS_BOOT_PROGRESS_LBN) |
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(1 << PCS_BOOT_DOWNLOAD_WAIT_LBN) |
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(1 << PCS_BOOT_CODE_STARTED_LBN))) {
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case ((1 << PCS_BOOT_FATAL_ERROR_LBN) |
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(PCS_BOOT_PROGRESS_CHECKSUM <<
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PCS_BOOT_PROGRESS_LBN)):
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case ((1 << PCS_BOOT_FATAL_ERROR_LBN) |
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(PCS_BOOT_PROGRESS_INIT <<
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PCS_BOOT_PROGRESS_LBN) |
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(1 << PCS_BOOT_DOWNLOAD_WAIT_LBN)):
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return -EINVAL;
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case ((PCS_BOOT_PROGRESS_WAIT_MDIO <<
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PCS_BOOT_PROGRESS_LBN) |
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(1 << PCS_BOOT_DOWNLOAD_WAIT_LBN)):
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return (efx->phy_mode & PHY_MODE_SPECIAL) ?
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0 : -EIO;
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case ((PCS_BOOT_PROGRESS_JUMP <<
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PCS_BOOT_PROGRESS_LBN) |
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(1 << PCS_BOOT_CODE_STARTED_LBN)):
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case ((PCS_BOOT_PROGRESS_JUMP <<
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PCS_BOOT_PROGRESS_LBN) |
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(1 << PCS_BOOT_DOWNLOAD_WAIT_LBN) |
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(1 << PCS_BOOT_CODE_STARTED_LBN)):
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return (efx->phy_mode & PHY_MODE_SPECIAL) ?
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-EIO : 0;
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default:
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if (boot_stat & (1 << PCS_BOOT_FATAL_ERROR_LBN))
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return -EIO;
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break;
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}
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}
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if (time_after_eq(jiffies, timeout))
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return -ETIMEDOUT;
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msleep(50);
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}
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}
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static int tenxpress_init(struct efx_nic *efx)
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{
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int reg;
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if (efx->phy_type == PHY_TYPE_SFX7101) {
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/* Enable 312.5 MHz clock */
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efx_mdio_write(efx, MDIO_MMD_PCS, PCS_TEST_SELECT_REG,
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1 << CLK312_EN_LBN);
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} else {
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/* Enable 312.5 MHz clock and GMII */
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reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG);
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reg |= ((1 << PMA_PMD_EXT_GMII_EN_LBN) |
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(1 << PMA_PMD_EXT_CLK_OUT_LBN) |
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(1 << PMA_PMD_EXT_CLK312_LBN) |
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(1 << PMA_PMD_EXT_ROBUST_LBN));
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efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG, reg);
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efx_mdio_set_flag(efx, MDIO_MMD_C22EXT,
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GPHY_XCONTROL_REG, 1 << GPHY_ISOLATE_LBN,
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false);
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}
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/* Set the LEDs up as: Green = Link, Amber = Link/Act, Red = Off */
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if (efx->phy_type == PHY_TYPE_SFX7101) {
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efx_mdio_set_flag(efx, MDIO_MMD_PMAPMD, PMA_PMD_LED_CTRL_REG,
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1 << PMA_PMA_LED_ACTIVITY_LBN, true);
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efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_LED_OVERR_REG,
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SFX7101_PMA_PMD_LED_DEFAULT);
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}
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return 0;
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}
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static int tenxpress_phy_probe(struct efx_nic *efx)
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{
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struct tenxpress_phy_data *phy_data;
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int rc;
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/* Allocate phy private storage */
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phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL);
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if (!phy_data)
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return -ENOMEM;
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efx->phy_data = phy_data;
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phy_data->phy_mode = efx->phy_mode;
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/* Create any special files */
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if (efx->phy_type == PHY_TYPE_SFT9001B) {
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rc = device_create_file(&efx->pci_dev->dev,
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&dev_attr_phy_short_reach);
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if (rc)
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goto fail;
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}
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if (efx->phy_type == PHY_TYPE_SFX7101) {
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efx->mdio.mmds = TENXPRESS_REQUIRED_DEVS;
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efx->mdio.mode_support = MDIO_SUPPORTS_C45;
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efx->loopback_modes = SFX7101_LOOPBACKS | FALCON_XMAC_LOOPBACKS;
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efx->link_advertising = (ADVERTISED_TP | ADVERTISED_Autoneg |
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ADVERTISED_10000baseT_Full);
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} else {
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efx->mdio.mmds = TENXPRESS_REQUIRED_DEVS;
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efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
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efx->loopback_modes = (SFT9001_LOOPBACKS |
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FALCON_XMAC_LOOPBACKS |
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FALCON_GMAC_LOOPBACKS);
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efx->link_advertising = (ADVERTISED_TP | ADVERTISED_Autoneg |
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ADVERTISED_10000baseT_Full |
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ADVERTISED_1000baseT_Full |
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ADVERTISED_100baseT_Full);
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}
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return 0;
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fail:
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kfree(efx->phy_data);
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efx->phy_data = NULL;
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return rc;
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}
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static int tenxpress_phy_init(struct efx_nic *efx)
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{
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int rc;
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falcon_board(efx)->type->init_phy(efx);
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if (!(efx->phy_mode & PHY_MODE_SPECIAL)) {
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if (efx->phy_type == PHY_TYPE_SFT9001A) {
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int reg;
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reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD,
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PMA_PMD_XCONTROL_REG);
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reg |= (1 << PMA_PMD_EXT_SSR_LBN);
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efx_mdio_write(efx, MDIO_MMD_PMAPMD,
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PMA_PMD_XCONTROL_REG, reg);
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mdelay(200);
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}
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rc = efx_mdio_wait_reset_mmds(efx, TENXPRESS_REQUIRED_DEVS);
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if (rc < 0)
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return rc;
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rc = efx_mdio_check_mmds(efx, TENXPRESS_REQUIRED_DEVS, 0);
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if (rc < 0)
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return rc;
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}
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rc = tenxpress_init(efx);
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if (rc < 0)
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return rc;
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/* Reinitialise flow control settings */
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efx_link_set_wanted_fc(efx, efx->wanted_fc);
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efx_mdio_an_reconfigure(efx);
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schedule_timeout_uninterruptible(HZ / 5); /* 200ms */
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/* Let XGXS and SerDes out of reset */
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falcon_reset_xaui(efx);
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return 0;
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}
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/* Perform a "special software reset" on the PHY. The caller is
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* responsible for saving and restoring the PHY hardware registers
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* properly, and masking/unmasking LASI */
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static int tenxpress_special_reset(struct efx_nic *efx)
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{
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int rc, reg;
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/* The XGMAC clock is driven from the SFC7101/SFT9001 312MHz clock, so
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* a special software reset can glitch the XGMAC sufficiently for stats
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* requests to fail. */
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falcon_stop_nic_stats(efx);
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/* Initiate reset */
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reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG);
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reg |= (1 << PMA_PMD_EXT_SSR_LBN);
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efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG, reg);
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mdelay(200);
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/* Wait for the blocks to come out of reset */
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rc = efx_mdio_wait_reset_mmds(efx, TENXPRESS_REQUIRED_DEVS);
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if (rc < 0)
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goto out;
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/* Try and reconfigure the device */
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rc = tenxpress_init(efx);
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if (rc < 0)
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goto out;
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/* Wait for the XGXS state machine to churn */
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mdelay(10);
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out:
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falcon_start_nic_stats(efx);
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return rc;
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}
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static void sfx7101_check_bad_lp(struct efx_nic *efx, bool link_ok)
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{
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struct tenxpress_phy_data *pd = efx->phy_data;
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bool bad_lp;
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int reg;
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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_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_name = sft9001_test_name,
|
|
.run_tests = sft9001_run_tests,
|
|
};
|