From: Ben Hutchings Date: Fri, 23 Oct 2009 08:33:42 +0000 (+0000) Subject: sfc: Rename 'xfp' file and functions to reflect reality X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b37b62fea1d1bf68ca51818f8eb1035188efd030;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git sfc: Rename 'xfp' file and functions to reflect reality The 'XFP' driver is really a driver for the QT2022C2 and QT2025C PHYs, covering both more and less than XFP. Rename its functions and constants to reflect reality and to reduce namespace pollution when sfc is a built-in driver. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- diff --git a/drivers/net/sfc/Makefile b/drivers/net/sfc/Makefile index 9c98d06ada7d..7b52fe10d38f 100644 --- a/drivers/net/sfc/Makefile +++ b/drivers/net/sfc/Makefile @@ -1,5 +1,5 @@ sfc-y += efx.o falcon.o tx.o rx.o falcon_gmac.o \ - falcon_xmac.o selftest.o ethtool.o xfp_phy.o \ + falcon_xmac.o selftest.o ethtool.o qt202x_phy.o \ mdio_10g.o tenxpress.o falcon_boards.o sfc-$(CONFIG_SFC_MTD) += mtd.o diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index d9ce21edfa6a..8776432f683c 100644 --- a/drivers/net/sfc/falcon.c +++ b/drivers/net/sfc/falcon.c @@ -2239,7 +2239,7 @@ int falcon_probe_port(struct efx_nic *efx) break; case PHY_TYPE_QT2022C2: case PHY_TYPE_QT2025C: - efx->phy_op = &falcon_xfp_phy_ops; + efx->phy_op = &falcon_qt202x_phy_ops; break; default: EFX_ERR(efx, "Unknown PHY type %d\n", diff --git a/drivers/net/sfc/falcon_boards.c b/drivers/net/sfc/falcon_boards.c index f65738bb5536..99f737223b10 100644 --- a/drivers/net/sfc/falcon_boards.c +++ b/drivers/net/sfc/falcon_boards.c @@ -612,17 +612,17 @@ static void sfe4002_init_leds(struct efx_nic *efx) { /* Set the TX and RX LEDs to reflect status and activity, and the * fault LED off */ - xfp_set_led(efx, SFE4002_TX_LED, - QUAKE_LED_TXLINK | QUAKE_LED_LINK_ACTSTAT); - xfp_set_led(efx, SFE4002_RX_LED, - QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACTSTAT); - xfp_set_led(efx, SFE4002_FAULT_LED, QUAKE_LED_OFF); + falcon_qt202x_set_led(efx, SFE4002_TX_LED, + QUAKE_LED_TXLINK | QUAKE_LED_LINK_ACTSTAT); + falcon_qt202x_set_led(efx, SFE4002_RX_LED, + QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACTSTAT); + falcon_qt202x_set_led(efx, SFE4002_FAULT_LED, QUAKE_LED_OFF); } static void sfe4002_set_id_led(struct efx_nic *efx, bool state) { - xfp_set_led(efx, SFE4002_FAULT_LED, state ? QUAKE_LED_ON : - QUAKE_LED_OFF); + falcon_qt202x_set_led(efx, SFE4002_FAULT_LED, state ? QUAKE_LED_ON : + QUAKE_LED_OFF); } static int sfe4002_check_hw(struct efx_nic *efx) @@ -677,16 +677,16 @@ static struct i2c_board_info sfn4112f_hwmon_info = { static void sfn4112f_init_leds(struct efx_nic *efx) { - xfp_set_led(efx, SFN4112F_ACT_LED, - QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACT); - xfp_set_led(efx, SFN4112F_LINK_LED, - QUAKE_LED_RXLINK | QUAKE_LED_LINK_STAT); + falcon_qt202x_set_led(efx, SFN4112F_ACT_LED, + QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACT); + falcon_qt202x_set_led(efx, SFN4112F_LINK_LED, + QUAKE_LED_RXLINK | QUAKE_LED_LINK_STAT); } static void sfn4112f_set_id_led(struct efx_nic *efx, bool state) { - xfp_set_led(efx, SFN4112F_LINK_LED, - state ? QUAKE_LED_ON : QUAKE_LED_OFF); + falcon_qt202x_set_led(efx, SFN4112F_LINK_LED, + state ? QUAKE_LED_ON : QUAKE_LED_OFF); } static int sfn4112f_check_hw(struct efx_nic *efx) diff --git a/drivers/net/sfc/phy.h b/drivers/net/sfc/phy.h index c1cff9c0c173..b5150f3bca31 100644 --- a/drivers/net/sfc/phy.h +++ b/drivers/net/sfc/phy.h @@ -23,9 +23,9 @@ extern void tenxpress_phy_blink(struct efx_nic *efx, bool blink); extern int sft9001_wait_boot(struct efx_nic *efx); /**************************************************************************** - * AMCC/Quake QT20xx PHYs + * AMCC/Quake QT202x PHYs */ -extern struct efx_phy_operations falcon_xfp_phy_ops; +extern struct efx_phy_operations falcon_qt202x_phy_ops; /* These PHYs provide various H/W control states for LEDs */ #define QUAKE_LED_LINK_INVAL (0) @@ -39,6 +39,6 @@ extern struct efx_phy_operations falcon_xfp_phy_ops; #define QUAKE_LED_TXLINK (0) #define QUAKE_LED_RXLINK (8) -extern void xfp_set_led(struct efx_nic *p, int led, int state); +extern void falcon_qt202x_set_led(struct efx_nic *p, int led, int state); #endif diff --git a/drivers/net/sfc/qt202x_phy.c b/drivers/net/sfc/qt202x_phy.c new file mode 100644 index 000000000000..560eb18280e1 --- /dev/null +++ b/drivers/net/sfc/qt202x_phy.c @@ -0,0 +1,250 @@ +/**************************************************************************** + * Driver for Solarflare Solarstorm network controllers and boards + * Copyright 2006-2008 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. + */ +/* + * Driver for AMCC QT202x SFP+ and XFP adapters; see www.amcc.com for details + */ + +#include +#include +#include "efx.h" +#include "mdio_10g.h" +#include "phy.h" +#include "falcon.h" + +#define QT202X_REQUIRED_DEVS (MDIO_DEVS_PCS | \ + MDIO_DEVS_PMAPMD | \ + MDIO_DEVS_PHYXS) + +#define QT202X_LOOPBACKS ((1 << LOOPBACK_PCS) | \ + (1 << LOOPBACK_PMAPMD) | \ + (1 << LOOPBACK_NETWORK)) + +/****************************************************************************/ +/* Quake-specific MDIO registers */ +#define MDIO_QUAKE_LED0_REG (0xD006) + +/* QT2025C only */ +#define PCS_FW_HEARTBEAT_REG 0xd7ee +#define PCS_FW_HEARTB_LBN 0 +#define PCS_FW_HEARTB_WIDTH 8 +#define PCS_UC8051_STATUS_REG 0xd7fd +#define PCS_UC_STATUS_LBN 0 +#define PCS_UC_STATUS_WIDTH 8 +#define PCS_UC_STATUS_FW_SAVE 0x20 +#define PMA_PMD_FTX_CTRL2_REG 0xc309 +#define PMA_PMD_FTX_STATIC_LBN 13 +#define PMA_PMD_VEND1_REG 0xc001 +#define PMA_PMD_VEND1_LBTXD_LBN 15 +#define PCS_VEND1_REG 0xc000 +#define PCS_VEND1_LBTXD_LBN 5 + +void falcon_qt202x_set_led(struct efx_nic *p, int led, int mode) +{ + int addr = MDIO_QUAKE_LED0_REG + led; + efx_mdio_write(p, MDIO_MMD_PMAPMD, addr, mode); +} + +struct qt202x_phy_data { + enum efx_phy_mode phy_mode; +}; + +#define QT2022C2_MAX_RESET_TIME 500 +#define QT2022C2_RESET_WAIT 10 + +static int qt2025c_wait_reset(struct efx_nic *efx) +{ + unsigned long timeout = jiffies + 10 * HZ; + int reg, old_counter = 0; + + /* Wait for firmware heartbeat to start */ + for (;;) { + int counter; + reg = efx_mdio_read(efx, MDIO_MMD_PCS, PCS_FW_HEARTBEAT_REG); + if (reg < 0) + return reg; + counter = ((reg >> PCS_FW_HEARTB_LBN) & + ((1 << PCS_FW_HEARTB_WIDTH) - 1)); + if (old_counter == 0) + old_counter = counter; + else if (counter != old_counter) + break; + if (time_after(jiffies, timeout)) + return -ETIMEDOUT; + msleep(10); + } + + /* Wait for firmware status to look good */ + for (;;) { + reg = efx_mdio_read(efx, MDIO_MMD_PCS, PCS_UC8051_STATUS_REG); + if (reg < 0) + return reg; + if ((reg & + ((1 << PCS_UC_STATUS_WIDTH) - 1) << PCS_UC_STATUS_LBN) >= + PCS_UC_STATUS_FW_SAVE) + break; + if (time_after(jiffies, timeout)) + return -ETIMEDOUT; + msleep(100); + } + + return 0; +} + +static int qt202x_reset_phy(struct efx_nic *efx) +{ + int rc; + + if (efx->phy_type == PHY_TYPE_QT2025C) { + /* Wait for the reset triggered by falcon_reset_hw() + * to complete */ + rc = qt2025c_wait_reset(efx); + if (rc < 0) + goto fail; + } else { + /* Reset the PHYXS MMD. This is documented as doing + * a complete soft reset. */ + rc = efx_mdio_reset_mmd(efx, MDIO_MMD_PHYXS, + QT2022C2_MAX_RESET_TIME / + QT2022C2_RESET_WAIT, + QT2022C2_RESET_WAIT); + if (rc < 0) + goto fail; + } + + /* Wait 250ms for the PHY to complete bootup */ + msleep(250); + + /* Check that all the MMDs we expect are present and responding. We + * expect faults on some if the link is down, but not on the PHY XS */ + rc = efx_mdio_check_mmds(efx, QT202X_REQUIRED_DEVS, MDIO_DEVS_PHYXS); + if (rc < 0) + goto fail; + + efx->board_info.init_leds(efx); + + return rc; + + fail: + EFX_ERR(efx, "PHY reset timed out\n"); + return rc; +} + +static int qt202x_phy_init(struct efx_nic *efx) +{ + struct qt202x_phy_data *phy_data; + u32 devid = efx_mdio_read_id(efx, MDIO_MMD_PHYXS); + int rc; + + phy_data = kzalloc(sizeof(struct qt202x_phy_data), GFP_KERNEL); + if (!phy_data) + return -ENOMEM; + efx->phy_data = phy_data; + + EFX_INFO(efx, "PHY ID reg %x (OUI %06x model %02x revision %x)\n", + devid, efx_mdio_id_oui(devid), efx_mdio_id_model(devid), + efx_mdio_id_rev(devid)); + + phy_data->phy_mode = efx->phy_mode; + + rc = qt202x_reset_phy(efx); + + EFX_INFO(efx, "PHY init %s.\n", + rc ? "failed" : "successful"); + if (rc < 0) + goto fail; + + return 0; + + fail: + kfree(efx->phy_data); + efx->phy_data = NULL; + return rc; +} + +static void qt202x_phy_clear_interrupt(struct efx_nic *efx) +{ + /* Read to clear link status alarm */ + efx_mdio_read(efx, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_STAT); +} + +static int qt202x_link_ok(struct efx_nic *efx) +{ + return efx_mdio_links_ok(efx, QT202X_REQUIRED_DEVS); +} + +static void qt202x_phy_poll(struct efx_nic *efx) +{ + int link_up = qt202x_link_ok(efx); + /* Simulate a PHY event if link state has changed */ + if (link_up != efx->link_up) + falcon_sim_phy_event(efx); +} + +static void qt202x_phy_reconfigure(struct efx_nic *efx) +{ + struct qt202x_phy_data *phy_data = efx->phy_data; + + if (efx->phy_type == PHY_TYPE_QT2025C) { + /* There are several different register bits which can + * disable TX (and save power) on direct-attach cables + * or optical transceivers, varying somewhat between + * firmware versions. Only 'static mode' appears to + * cover everything. */ + mdio_set_flag( + &efx->mdio, efx->mdio.prtad, MDIO_MMD_PMAPMD, + PMA_PMD_FTX_CTRL2_REG, 1 << PMA_PMD_FTX_STATIC_LBN, + efx->phy_mode & PHY_MODE_TX_DISABLED || + efx->phy_mode & PHY_MODE_LOW_POWER || + efx->loopback_mode == LOOPBACK_PCS || + efx->loopback_mode == LOOPBACK_PMAPMD); + } else { + /* Reset the PHY when moving from tx off to tx on */ + if (!(efx->phy_mode & PHY_MODE_TX_DISABLED) && + (phy_data->phy_mode & PHY_MODE_TX_DISABLED)) + qt202x_reset_phy(efx); + + efx_mdio_transmit_disable(efx); + } + + efx_mdio_phy_reconfigure(efx); + + phy_data->phy_mode = efx->phy_mode; + efx->link_up = qt202x_link_ok(efx); + efx->link_speed = 10000; + efx->link_fd = true; + efx->link_fc = efx->wanted_fc; +} + +static void qt202x_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) +{ + mdio45_ethtool_gset(&efx->mdio, ecmd); +} + +static void qt202x_phy_fini(struct efx_nic *efx) +{ + /* Clobber the LED if it was blinking */ + efx->board_info.blink(efx, false); + + /* Free the context block */ + kfree(efx->phy_data); + efx->phy_data = NULL; +} + +struct efx_phy_operations falcon_qt202x_phy_ops = { + .macs = EFX_XMAC, + .init = qt202x_phy_init, + .reconfigure = qt202x_phy_reconfigure, + .poll = qt202x_phy_poll, + .fini = qt202x_phy_fini, + .clear_interrupt = qt202x_phy_clear_interrupt, + .get_settings = qt202x_phy_get_settings, + .set_settings = efx_mdio_set_settings, + .mmds = QT202X_REQUIRED_DEVS, + .loopbacks = QT202X_LOOPBACKS, +}; diff --git a/drivers/net/sfc/xfp_phy.c b/drivers/net/sfc/xfp_phy.c deleted file mode 100644 index e6b3d5eaddba..000000000000 --- a/drivers/net/sfc/xfp_phy.c +++ /dev/null @@ -1,250 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare Solarstorm network controllers and boards - * Copyright 2006-2008 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. - */ -/* - * Driver for SFP+ and XFP optical PHYs plus some support specific to the - * AMCC QT20xx adapters; see www.amcc.com for details - */ - -#include -#include -#include "efx.h" -#include "mdio_10g.h" -#include "phy.h" -#include "falcon.h" - -#define XFP_REQUIRED_DEVS (MDIO_DEVS_PCS | \ - MDIO_DEVS_PMAPMD | \ - MDIO_DEVS_PHYXS) - -#define XFP_LOOPBACKS ((1 << LOOPBACK_PCS) | \ - (1 << LOOPBACK_PMAPMD) | \ - (1 << LOOPBACK_NETWORK)) - -/****************************************************************************/ -/* Quake-specific MDIO registers */ -#define MDIO_QUAKE_LED0_REG (0xD006) - -/* QT2025C only */ -#define PCS_FW_HEARTBEAT_REG 0xd7ee -#define PCS_FW_HEARTB_LBN 0 -#define PCS_FW_HEARTB_WIDTH 8 -#define PCS_UC8051_STATUS_REG 0xd7fd -#define PCS_UC_STATUS_LBN 0 -#define PCS_UC_STATUS_WIDTH 8 -#define PCS_UC_STATUS_FW_SAVE 0x20 -#define PMA_PMD_FTX_CTRL2_REG 0xc309 -#define PMA_PMD_FTX_STATIC_LBN 13 -#define PMA_PMD_VEND1_REG 0xc001 -#define PMA_PMD_VEND1_LBTXD_LBN 15 -#define PCS_VEND1_REG 0xc000 -#define PCS_VEND1_LBTXD_LBN 5 - -void xfp_set_led(struct efx_nic *p, int led, int mode) -{ - int addr = MDIO_QUAKE_LED0_REG + led; - efx_mdio_write(p, MDIO_MMD_PMAPMD, addr, mode); -} - -struct xfp_phy_data { - enum efx_phy_mode phy_mode; -}; - -#define XFP_MAX_RESET_TIME 500 -#define XFP_RESET_WAIT 10 - -static int qt2025c_wait_reset(struct efx_nic *efx) -{ - unsigned long timeout = jiffies + 10 * HZ; - int reg, old_counter = 0; - - /* Wait for firmware heartbeat to start */ - for (;;) { - int counter; - reg = efx_mdio_read(efx, MDIO_MMD_PCS, PCS_FW_HEARTBEAT_REG); - if (reg < 0) - return reg; - counter = ((reg >> PCS_FW_HEARTB_LBN) & - ((1 << PCS_FW_HEARTB_WIDTH) - 1)); - if (old_counter == 0) - old_counter = counter; - else if (counter != old_counter) - break; - if (time_after(jiffies, timeout)) - return -ETIMEDOUT; - msleep(10); - } - - /* Wait for firmware status to look good */ - for (;;) { - reg = efx_mdio_read(efx, MDIO_MMD_PCS, PCS_UC8051_STATUS_REG); - if (reg < 0) - return reg; - if ((reg & - ((1 << PCS_UC_STATUS_WIDTH) - 1) << PCS_UC_STATUS_LBN) >= - PCS_UC_STATUS_FW_SAVE) - break; - if (time_after(jiffies, timeout)) - return -ETIMEDOUT; - msleep(100); - } - - return 0; -} - -static int xfp_reset_phy(struct efx_nic *efx) -{ - int rc; - - if (efx->phy_type == PHY_TYPE_QT2025C) { - /* Wait for the reset triggered by falcon_reset_hw() - * to complete */ - rc = qt2025c_wait_reset(efx); - if (rc < 0) - goto fail; - } else { - /* Reset the PHYXS MMD. This is documented as doing - * a complete soft reset. */ - rc = efx_mdio_reset_mmd(efx, MDIO_MMD_PHYXS, - XFP_MAX_RESET_TIME / XFP_RESET_WAIT, - XFP_RESET_WAIT); - if (rc < 0) - goto fail; - } - - /* Wait 250ms for the PHY to complete bootup */ - msleep(250); - - /* Check that all the MMDs we expect are present and responding. We - * expect faults on some if the link is down, but not on the PHY XS */ - rc = efx_mdio_check_mmds(efx, XFP_REQUIRED_DEVS, MDIO_DEVS_PHYXS); - if (rc < 0) - goto fail; - - efx->board_info.init_leds(efx); - - return rc; - - fail: - EFX_ERR(efx, "PHY reset timed out\n"); - return rc; -} - -static int xfp_phy_init(struct efx_nic *efx) -{ - struct xfp_phy_data *phy_data; - u32 devid = efx_mdio_read_id(efx, MDIO_MMD_PHYXS); - int rc; - - phy_data = kzalloc(sizeof(struct xfp_phy_data), GFP_KERNEL); - if (!phy_data) - return -ENOMEM; - efx->phy_data = phy_data; - - EFX_INFO(efx, "PHY ID reg %x (OUI %06x model %02x revision %x)\n", - devid, efx_mdio_id_oui(devid), efx_mdio_id_model(devid), - efx_mdio_id_rev(devid)); - - phy_data->phy_mode = efx->phy_mode; - - rc = xfp_reset_phy(efx); - - EFX_INFO(efx, "PHY init %s.\n", - rc ? "failed" : "successful"); - if (rc < 0) - goto fail; - - return 0; - - fail: - kfree(efx->phy_data); - efx->phy_data = NULL; - return rc; -} - -static void xfp_phy_clear_interrupt(struct efx_nic *efx) -{ - /* Read to clear link status alarm */ - efx_mdio_read(efx, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_STAT); -} - -static int xfp_link_ok(struct efx_nic *efx) -{ - return efx_mdio_links_ok(efx, XFP_REQUIRED_DEVS); -} - -static void xfp_phy_poll(struct efx_nic *efx) -{ - int link_up = xfp_link_ok(efx); - /* Simulate a PHY event if link state has changed */ - if (link_up != efx->link_up) - falcon_sim_phy_event(efx); -} - -static void xfp_phy_reconfigure(struct efx_nic *efx) -{ - struct xfp_phy_data *phy_data = efx->phy_data; - - if (efx->phy_type == PHY_TYPE_QT2025C) { - /* There are several different register bits which can - * disable TX (and save power) on direct-attach cables - * or optical transceivers, varying somewhat between - * firmware versions. Only 'static mode' appears to - * cover everything. */ - mdio_set_flag( - &efx->mdio, efx->mdio.prtad, MDIO_MMD_PMAPMD, - PMA_PMD_FTX_CTRL2_REG, 1 << PMA_PMD_FTX_STATIC_LBN, - efx->phy_mode & PHY_MODE_TX_DISABLED || - efx->phy_mode & PHY_MODE_LOW_POWER || - efx->loopback_mode == LOOPBACK_PCS || - efx->loopback_mode == LOOPBACK_PMAPMD); - } else { - /* Reset the PHY when moving from tx off to tx on */ - if (!(efx->phy_mode & PHY_MODE_TX_DISABLED) && - (phy_data->phy_mode & PHY_MODE_TX_DISABLED)) - xfp_reset_phy(efx); - - efx_mdio_transmit_disable(efx); - } - - efx_mdio_phy_reconfigure(efx); - - phy_data->phy_mode = efx->phy_mode; - efx->link_up = xfp_link_ok(efx); - efx->link_speed = 10000; - efx->link_fd = true; - efx->link_fc = efx->wanted_fc; -} - -static void xfp_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) -{ - mdio45_ethtool_gset(&efx->mdio, ecmd); -} - -static void xfp_phy_fini(struct efx_nic *efx) -{ - /* Clobber the LED if it was blinking */ - efx->board_info.blink(efx, false); - - /* Free the context block */ - kfree(efx->phy_data); - efx->phy_data = NULL; -} - -struct efx_phy_operations falcon_xfp_phy_ops = { - .macs = EFX_XMAC, - .init = xfp_phy_init, - .reconfigure = xfp_phy_reconfigure, - .poll = xfp_phy_poll, - .fini = xfp_phy_fini, - .clear_interrupt = xfp_phy_clear_interrupt, - .get_settings = xfp_phy_get_settings, - .set_settings = efx_mdio_set_settings, - .mmds = XFP_REQUIRED_DEVS, - .loopbacks = XFP_LOOPBACKS, -};