From 3e133c44d24a094118caee182200462d46c55b56 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Tue, 4 Nov 2008 20:34:56 +0000 Subject: sfc: Use lm87 and lm90 drivers for board temperature/power monitoring Add board monitoring to periodic work whenever link is down. For SFE4001, report when a fault has caused the PHY to turn off. For SFE4002, switch XFP PHY into low-power state in case of a fault. Signed-off-by: Ben Hutchings Signed-off-by: Jeff Garzik --- drivers/net/sfc/tenxpress.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'drivers/net/sfc/tenxpress.c') diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c index d507c93..8d41c29 100644 --- a/drivers/net/sfc/tenxpress.c +++ b/drivers/net/sfc/tenxpress.c @@ -376,6 +376,7 @@ static int tenxpress_phy_check_hw(struct efx_nic *efx) { struct tenxpress_phy_data *phy_data = efx->phy_data; bool link_ok; + int rc = 0; link_ok = tenxpress_link_ok(efx, true); @@ -391,7 +392,22 @@ static int tenxpress_phy_check_hw(struct efx_nic *efx) atomic_set(&phy_data->bad_crc_count, 0); } - return 0; + rc = efx->board_info.monitor(efx); + if (rc) { + EFX_ERR(efx, "Board sensor %s; shutting down PHY\n", + (rc == -ERANGE) ? "reported fault" : "failed"); + if (efx->phy_mode & PHY_MODE_OFF) { + /* Assume that board has shut PHY off */ + phy_data->phy_mode = PHY_MODE_OFF; + } else { + efx->phy_mode |= PHY_MODE_LOW_POWER; + mdio_clause45_set_mmds_lpower(efx, true, + efx->phy_op->mmds); + phy_data->phy_mode |= PHY_MODE_LOW_POWER; + } + } + + return rc; } static void tenxpress_phy_fini(struct efx_nic *efx) -- cgit v1.1 From f31a45d2f45a7667acd6e85ab6613b0910c55ea9 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 12 Dec 2008 21:43:33 -0800 Subject: sfc: Remove MII extension cruft Replace efx_nic::link_options bitfield with link_speed (speed in Mbit/s) and link_fd (full duplex flag). Remove broken auto-negotiation functions. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/tenxpress.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net/sfc/tenxpress.c') diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c index 8d41c29..3fa7ccb 100644 --- a/drivers/net/sfc/tenxpress.c +++ b/drivers/net/sfc/tenxpress.c @@ -10,7 +10,6 @@ #include #include #include "efx.h" -#include "gmii.h" #include "mdio_10g.h" #include "falcon.h" #include "phy.h" @@ -362,7 +361,8 @@ static void tenxpress_phy_reconfigure(struct efx_nic *efx) phy_data->loopback_mode = efx->loopback_mode; phy_data->phy_mode = efx->phy_mode; efx->link_up = tenxpress_link_ok(efx, false); - efx->link_options = GM_LPA_10000FULL; + efx->link_speed = 10000; + efx->link_fd = true; } static void tenxpress_phy_clear_interrupt(struct efx_nic *efx) -- cgit v1.1 From 27dd2caca4eabe7c13a052b7456495ba75535e6a Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 12 Dec 2008 21:44:14 -0800 Subject: sfc: Add support for MMDs numbered >15 Combine DEVS0 and DEVS1 registers into a 32-bit mask instead of reading just DEVS0. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/tenxpress.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/net/sfc/tenxpress.c') diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c index 3fa7ccb..197b544 100644 --- a/drivers/net/sfc/tenxpress.c +++ b/drivers/net/sfc/tenxpress.c @@ -19,9 +19,9 @@ /* We expect these MMDs to be in the package */ /* AN not here as mdio_check_mmds() requires STAT2 support */ -#define TENXPRESS_REQUIRED_DEVS (MDIO_MMDREG_DEVS0_PMAPMD | \ - MDIO_MMDREG_DEVS0_PCS | \ - MDIO_MMDREG_DEVS0_PHYXS) +#define TENXPRESS_REQUIRED_DEVS (MDIO_MMDREG_DEVS_PMAPMD | \ + MDIO_MMDREG_DEVS_PCS | \ + MDIO_MMDREG_DEVS_PHYXS) #define TENXPRESS_LOOPBACKS ((1 << LOOPBACK_PHYXS) | \ (1 << LOOPBACK_PCS) | \ -- cgit v1.1 From 177dfcd80f28f8fbc3e22c2d8b24d21cb86f1d97 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 12 Dec 2008 21:50:08 -0800 Subject: sfc: Add support for sub-10G speeds The SFC4000 has a separate MAC for use at sub-10G speeds. Introduce an efx_mac_operations structure with implementations for the two MACs. Switch between the MACs as necessary. PHY settings are independent of the MAC, so add get_settings() and set_settings() to efx_phy_operations. Also add macs field to indicate which MACs the PHY is connected to. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/tenxpress.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers/net/sfc/tenxpress.c') diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c index 197b544..d60353b 100644 --- a/drivers/net/sfc/tenxpress.c +++ b/drivers/net/sfc/tenxpress.c @@ -1,6 +1,6 @@ /**************************************************************************** - * Driver for Solarflare 802.3an compliant PHY - * Copyright 2007 Solarflare Communications Inc. + * Driver for Solarflare Solarstorm network controllers and boards + * Copyright 2007-2008 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 @@ -15,7 +15,6 @@ #include "phy.h" #include "falcon_hwdefs.h" #include "boards.h" -#include "mac.h" /* We expect these MMDs to be in the package */ /* AN not here as mdio_check_mmds() requires STAT2 support */ @@ -381,7 +380,7 @@ static int tenxpress_phy_check_hw(struct efx_nic *efx) link_ok = tenxpress_link_ok(efx, true); if (link_ok != efx->link_up) - falcon_xmac_sim_phy_event(efx); + falcon_sim_phy_event(efx); if (phy_data->phy_mode != PHY_MODE_NORMAL) return 0; @@ -453,12 +452,15 @@ static int tenxpress_phy_test(struct efx_nic *efx) } struct efx_phy_operations falcon_tenxpress_phy_ops = { + .macs = EFX_XMAC, .init = tenxpress_phy_init, .reconfigure = tenxpress_phy_reconfigure, .check_hw = tenxpress_phy_check_hw, .fini = tenxpress_phy_fini, .clear_interrupt = tenxpress_phy_clear_interrupt, .test = tenxpress_phy_test, + .get_settings = mdio_clause45_get_settings, + .set_settings = mdio_clause45_set_settings, .mmds = TENXPRESS_REQUIRED_DEVS, .loopbacks = TENXPRESS_LOOPBACKS, }; -- cgit v1.1 From 04cc8cacb01c09fba2297faf1477cd570ba43f0b Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 12 Dec 2008 21:50:46 -0800 Subject: sfc: Implement auto-negotiation Add infrastructure for auto-negotiation of speed, duplex and flow control. When using 10Xpress, auto-negotiate flow control. While we're at it, clean up the code to warn when partner is not 10GBASE-T capable. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/tenxpress.c | 138 +++++++++++++++++++++++--------------------- 1 file changed, 72 insertions(+), 66 deletions(-) (limited to 'drivers/net/sfc/tenxpress.c') diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c index d60353b..634ff91 100644 --- a/drivers/net/sfc/tenxpress.c +++ b/drivers/net/sfc/tenxpress.c @@ -17,10 +17,10 @@ #include "boards.h" /* We expect these MMDs to be in the package */ -/* AN not here as mdio_check_mmds() requires STAT2 support */ #define TENXPRESS_REQUIRED_DEVS (MDIO_MMDREG_DEVS_PMAPMD | \ MDIO_MMDREG_DEVS_PCS | \ - MDIO_MMDREG_DEVS_PHYXS) + MDIO_MMDREG_DEVS_PHYXS | \ + MDIO_MMDREG_DEVS_AN) #define TENXPRESS_LOOPBACKS ((1 << LOOPBACK_PHYXS) | \ (1 << LOOPBACK_PCS) | \ @@ -57,6 +57,7 @@ #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 PMA_PMD_LED_FULL_AUTO (0) /* Green and Amber under hardware control, Red off */ @@ -242,78 +243,60 @@ unlock: return rc; } -static void tenxpress_set_bad_lp(struct efx_nic *efx, bool bad_lp) +static void tenxpress_check_bad_lp(struct efx_nic *efx, bool link_ok) { struct tenxpress_phy_data *pd = efx->phy_data; + int phy_id = efx->mii.phy_id; + bool bad_lp; int reg; + if (link_ok) { + bad_lp = false; + } else { + /* Check that AN has started but not completed. */ + reg = mdio_clause45_read(efx, phy_id, MDIO_MMD_AN, + MDIO_AN_STATUS); + if (!(reg & (1 << MDIO_AN_STATUS_LP_AN_CAP_LBN))) + return; /* LP status is unknown */ + bad_lp = !(reg & (1 << MDIO_AN_STATUS_AN_DONE_LBN)); + if (bad_lp) + pd->bad_lp_tries++; + } + /* Nothing to do if all is well and was previously so. */ - if (!(bad_lp || pd->bad_lp_tries)) + if (!pd->bad_lp_tries) return; - reg = mdio_clause45_read(efx, efx->mii.phy_id, - MDIO_MMD_PMAPMD, PMA_PMD_LED_OVERR_REG); - - if (bad_lp) - pd->bad_lp_tries++; - else - pd->bad_lp_tries = 0; - - if (pd->bad_lp_tries == MAX_BAD_LP_TRIES) { - pd->bad_lp_tries = 0; /* Restart count */ - reg &= ~(PMA_PMD_LED_FLASH << PMA_PMD_LED_RX_LBN); - reg |= (PMA_PMD_LED_FLASH << PMA_PMD_LED_RX_LBN); - EFX_ERR(efx, "This NIC appears to be plugged into" - " a port that is not 10GBASE-T capable.\n" - " This PHY is 10GBASE-T ONLY, so no link can" - " be established.\n"); - } else { - reg |= (PMA_PMD_LED_OFF << PMA_PMD_LED_RX_LBN); + /* 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 = mdio_clause45_read(efx, phy_id, 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"); + } + mdio_clause45_write(efx, phy_id, MDIO_MMD_PMAPMD, + PMA_PMD_LED_OVERR_REG, reg); + pd->bad_lp_tries = bad_lp; } - mdio_clause45_write(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD, - PMA_PMD_LED_OVERR_REG, reg); } -/* Check link status and return a boolean OK value. If the link is NOT - * OK we have a quick rummage round to see if we appear to be plugged - * into a non-10GBT port and if so warn the user that they won't get - * link any time soon as we are 10GBT only, unless caller specified - * not to do this check (it isn't useful in loopback) */ -static bool tenxpress_link_ok(struct efx_nic *efx, bool check_lp) +static bool tenxpress_link_ok(struct efx_nic *efx) { - bool ok = mdio_clause45_links_ok(efx, TENXPRESS_REQUIRED_DEVS); - - if (ok) { - tenxpress_set_bad_lp(efx, false); - } else if (check_lp) { - /* Are we plugged into the wrong sort of link? */ - bool bad_lp = false; - int phy_id = efx->mii.phy_id; - int an_stat = mdio_clause45_read(efx, phy_id, MDIO_MMD_AN, - MDIO_AN_STATUS); - int xphy_stat = mdio_clause45_read(efx, phy_id, - MDIO_MMD_PMAPMD, - PMA_PMD_XSTATUS_REG); - /* Are we plugged into anything that sends FLPs? If - * not we can't distinguish between not being plugged - * in and being plugged into a non-AN antique. The FLP - * bit has the advantage of not clearing when autoneg - * restarts. */ - if (!(xphy_stat & (1 << PMA_PMD_XSTAT_FLP_LBN))) { - tenxpress_set_bad_lp(efx, false); - return ok; - } - - /* If it can do 10GBT it must be XNP capable */ - bad_lp = !(an_stat & (1 << MDIO_AN_STATUS_XNP_LBN)); - if (!bad_lp && (an_stat & (1 << MDIO_AN_STATUS_PAGE_LBN))) { - bad_lp = !(mdio_clause45_read(efx, phy_id, - MDIO_MMD_AN, MDIO_AN_10GBT_STATUS) & - (1 << MDIO_AN_10GBT_STATUS_LP_10G_LBN)); - } - tenxpress_set_bad_lp(efx, bad_lp); - } - return ok; + if (efx->loopback_mode == LOOPBACK_NONE) + return mdio_clause45_links_ok(efx, MDIO_MMDREG_DEVS_AN); + else + return mdio_clause45_links_ok(efx, + MDIO_MMDREG_DEVS_PMAPMD | + MDIO_MMDREG_DEVS_PCS | + MDIO_MMDREG_DEVS_PHYXS); } static void tenxpress_phyxs_loopback(struct efx_nic *efx) @@ -359,9 +342,10 @@ static void tenxpress_phy_reconfigure(struct efx_nic *efx) phy_data->loopback_mode = efx->loopback_mode; phy_data->phy_mode = efx->phy_mode; - efx->link_up = tenxpress_link_ok(efx, false); + efx->link_up = tenxpress_link_ok(efx); efx->link_speed = 10000; efx->link_fd = true; + efx->link_fc = mdio_clause45_get_pause(efx); } static void tenxpress_phy_clear_interrupt(struct efx_nic *efx) @@ -377,7 +361,8 @@ static int tenxpress_phy_check_hw(struct efx_nic *efx) bool link_ok; int rc = 0; - link_ok = tenxpress_link_ok(efx, true); + link_ok = tenxpress_link_ok(efx); + tenxpress_check_bad_lp(efx, link_ok); if (link_ok != efx->link_up) falcon_sim_phy_event(efx); @@ -451,6 +436,27 @@ static int tenxpress_phy_test(struct efx_nic *efx) return tenxpress_special_reset(efx); } +static u32 tenxpress_get_xnp_lpa(struct efx_nic *efx) +{ + int phy = efx->mii.phy_id; + u32 lpa = 0; + int reg; + + reg = mdio_clause45_read(efx, phy, MDIO_MMD_AN, MDIO_AN_10GBT_STATUS); + if (reg & (1 << MDIO_AN_10GBT_STATUS_LP_10G_LBN)) + lpa |= ADVERTISED_10000baseT_Full; + return lpa; +} + +static void +tenxpress_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) +{ + mdio_clause45_get_settings_ext(efx, ecmd, ADVERTISED_10000baseT_Full, + tenxpress_get_xnp_lpa(efx)); + ecmd->supported |= SUPPORTED_10000baseT_Full; + ecmd->advertising |= ADVERTISED_10000baseT_Full; +} + struct efx_phy_operations falcon_tenxpress_phy_ops = { .macs = EFX_XMAC, .init = tenxpress_phy_init, @@ -459,7 +465,7 @@ struct efx_phy_operations falcon_tenxpress_phy_ops = { .fini = tenxpress_phy_fini, .clear_interrupt = tenxpress_phy_clear_interrupt, .test = tenxpress_phy_test, - .get_settings = mdio_clause45_get_settings, + .get_settings = tenxpress_get_settings, .set_settings = mdio_clause45_set_settings, .mmds = TENXPRESS_REQUIRED_DEVS, .loopbacks = TENXPRESS_LOOPBACKS, -- cgit v1.1 From 766ca0fa6bf1600bdf4bc7726c74f14c8455c6b8 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 12 Dec 2008 21:59:24 -0800 Subject: sfc: Rework MAC, PHY and board event handling From: Steve Hodgson MAC, PHY and board events may be separately enabled and signalled. Our current arrangement of chaining the polling functions can result in events being missed. Change them to be more independent. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/tenxpress.c | 44 ++++++++++++++------------------------------ 1 file changed, 14 insertions(+), 30 deletions(-) (limited to 'drivers/net/sfc/tenxpress.c') diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c index 634ff91..7256ea4 100644 --- a/drivers/net/sfc/tenxpress.c +++ b/drivers/net/sfc/tenxpress.c @@ -348,50 +348,34 @@ static void tenxpress_phy_reconfigure(struct efx_nic *efx) efx->link_fc = mdio_clause45_get_pause(efx); } -static void tenxpress_phy_clear_interrupt(struct efx_nic *efx) -{ - /* Nothing done here - LASI interrupts aren't reliable so poll */ -} - - /* Poll PHY for interrupt */ -static int tenxpress_phy_check_hw(struct efx_nic *efx) +static void tenxpress_phy_poll(struct efx_nic *efx) { struct tenxpress_phy_data *phy_data = efx->phy_data; - bool link_ok; - int rc = 0; + bool change = false, link_ok; + unsigned link_fc; link_ok = tenxpress_link_ok(efx); + if (link_ok != efx->link_up) { + change = true; + } else { + link_fc = mdio_clause45_get_pause(efx); + if (link_fc != efx->link_fc) + change = true; + } tenxpress_check_bad_lp(efx, link_ok); - if (link_ok != efx->link_up) + if (change) falcon_sim_phy_event(efx); if (phy_data->phy_mode != PHY_MODE_NORMAL) - return 0; + return; if (atomic_read(&phy_data->bad_crc_count) > crc_error_reset_threshold) { EFX_ERR(efx, "Resetting XAUI due to too many CRC errors\n"); falcon_reset_xaui(efx); atomic_set(&phy_data->bad_crc_count, 0); } - - rc = efx->board_info.monitor(efx); - if (rc) { - EFX_ERR(efx, "Board sensor %s; shutting down PHY\n", - (rc == -ERANGE) ? "reported fault" : "failed"); - if (efx->phy_mode & PHY_MODE_OFF) { - /* Assume that board has shut PHY off */ - phy_data->phy_mode = PHY_MODE_OFF; - } else { - efx->phy_mode |= PHY_MODE_LOW_POWER; - mdio_clause45_set_mmds_lpower(efx, true, - efx->phy_op->mmds); - phy_data->phy_mode |= PHY_MODE_LOW_POWER; - } - } - - return rc; } static void tenxpress_phy_fini(struct efx_nic *efx) @@ -461,9 +445,9 @@ struct efx_phy_operations falcon_tenxpress_phy_ops = { .macs = EFX_XMAC, .init = tenxpress_phy_init, .reconfigure = tenxpress_phy_reconfigure, - .check_hw = tenxpress_phy_check_hw, + .poll = tenxpress_phy_poll, .fini = tenxpress_phy_fini, - .clear_interrupt = tenxpress_phy_clear_interrupt, + .clear_interrupt = efx_port_dummy_op_void, .test = tenxpress_phy_test, .get_settings = tenxpress_get_settings, .set_settings = mdio_clause45_set_settings, -- cgit v1.1 From e6fa2eb789f49dc51a20d3db0d410bc8158abb43 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 12 Dec 2008 22:00:17 -0800 Subject: sfc: Add support for Solarflare 10Xpress SFT9001 Add type codes for the new PHY and rename the SFX7101 type code. Add definition of clause 22 extension MMD. Adapt the 10Xpress SFX7101 code to support the SFT9001 as well. Clean up register definitions. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/tenxpress.c | 528 ++++++++++++++++++++++++++++++++++++-------- 1 file changed, 431 insertions(+), 97 deletions(-) (limited to 'drivers/net/sfc/tenxpress.c') diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c index 7256ea4..b3ca2dc 100644 --- a/drivers/net/sfc/tenxpress.c +++ b/drivers/net/sfc/tenxpress.c @@ -15,38 +15,71 @@ #include "phy.h" #include "falcon_hwdefs.h" #include "boards.h" +#include "workarounds.h" +#include "selftest.h" -/* We expect these MMDs to be in the package */ +/* 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_MMDREG_DEVS_PMAPMD | \ MDIO_MMDREG_DEVS_PCS | \ MDIO_MMDREG_DEVS_PHYXS | \ MDIO_MMDREG_DEVS_AN) -#define TENXPRESS_LOOPBACKS ((1 << LOOPBACK_PHYXS) | \ - (1 << LOOPBACK_PCS) | \ - (1 << LOOPBACK_PMAPMD) | \ - (1 << LOOPBACK_NETWORK)) +#define SFX7101_LOOPBACKS ((1 << LOOPBACK_PHYXS) | \ + (1 << LOOPBACK_PCS) | \ + (1 << LOOPBACK_PMAPMD) | \ + (1 << LOOPBACK_NETWORK)) + +#define SFT9001_LOOPBACKS ((1 << LOOPBACK_GPHY) | \ + (1 << LOOPBACK_PHYXS) | \ + (1 << LOOPBACK_PCS) | \ + (1 << LOOPBACK_PMAPMD) | \ + (1 << LOOPBACK_NETWORK)) /* 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) +/* LASI Control */ +#define PMA_PMD_LASI_CTRL 36866 +#define PMA_PMD_LASI_STATUS 36869 +#define PMA_PMD_LS_ALARM_LBN 0 +#define PMA_PMD_LS_ALARM_WIDTH 1 +#define PMA_PMD_TX_ALARM_LBN 1 +#define PMA_PMD_TX_ALARM_WIDTH 1 +#define PMA_PMD_RX_ALARM_LBN 2 +#define PMA_PMD_RX_ALARM_WIDTH 1 +#define PMA_PMD_AN_ALARM_LBN 3 +#define PMA_PMD_AN_ALARM_WIDTH 1 + /* Extended control register */ -#define PMA_PMD_XCONTROL_REG 0xc000 -#define PMA_PMD_LNPGA_POWERDOWN_LBN 8 -#define PMA_PMD_LNPGA_POWERDOWN_WIDTH 1 +#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_SSR_LBN 15 +#define PMA_PMD_EXT_SSR_WIDTH 1 /* extended status register */ -#define PMA_PMD_XSTATUS_REG 0xc001 +#define PMA_PMD_XSTATUS_REG 49153 #define PMA_PMD_XSTAT_FLP_LBN (12) /* LED control register */ -#define PMA_PMD_LED_CTRL_REG (0xc007) +#define PMA_PMD_LED_CTRL_REG 49159 #define PMA_PMA_LED_ACTIVITY_LBN (3) /* LED function override register */ -#define PMA_PMD_LED_OVERR_REG (0xc009) +#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) @@ -63,36 +96,74 @@ /* Green and Amber under hardware control, Red off */ #define PMA_PMD_LED_DEFAULT (PMA_PMD_LED_OFF << PMA_PMD_LED_RX_LBN) - -/* Special Software reset register */ -#define PMA_PMD_EXT_CTRL_REG 49152 -#define PMA_PMD_EXT_SSR_LBN 15 - -/* Misc register defines */ -#define PCS_CLOCK_CTRL_REG 0xd801 +#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 + +/* 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 0xd806 +#define PCS_SOFT_RST2_REG 55302 #define SERDES_RST_N_LBN 13 #define XGXS_RST_N_LBN 12 -#define PCS_TEST_SELECT_REG 0xd807 /* PRM 10.5.8 */ +#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) +#define PCS_10GBASET_STAT1 32 +#define PCS_10GBASET_BLKLK_LBN 0 +#define PCS_10GBASET_BLKLK_WIDTH 1 + /* Boot status register */ -#define PCS_BOOT_STATUS_REG (0xd000) +#define PCS_BOOT_STATUS_REG 53248 #define PCS_BOOT_FATAL_ERR_LBN (0) #define PCS_BOOT_PROGRESS_LBN (1) #define PCS_BOOT_PROGRESS_WIDTH (2) #define PCS_BOOT_COMPLETE_LBN (3) + #define PCS_BOOT_MAX_DELAY (100) #define PCS_BOOT_POLL_DELAY (10) +/* 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_REG 49162 +#define C22EXT_MSTSLV_1000_HD_LBN 10 +#define C22EXT_MSTSLV_1000_HD_WIDTH 1 +#define C22EXT_MSTSLV_1000_FD_LBN 11 +#define C22EXT_MSTSLV_1000_FD_WIDTH 1 + /* Time to wait between powering down the LNPGA and turning off the power * rails */ #define LNPGA_PDOWN_WAIT (HZ / 5) @@ -116,6 +187,38 @@ void tenxpress_crc_err(struct efx_nic *efx) atomic_inc(&phy_data->bad_crc_count); } +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 = mdio_clause45_read(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD, + MDIO_PMAPMD_10GBT_TXPWR); + return sprintf(buf, "%d\n", + !!(reg & (1 << MDIO_PMAPMD_10GBT_TXPWR_SHORT_LBN))); +} + +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)); + + rtnl_lock(); + mdio_clause45_set_flag(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD, + MDIO_PMAPMD_10GBT_TXPWR, + MDIO_PMAPMD_10GBT_TXPWR_SHORT_LBN, + count != 0 && *buf != '0'); + efx_reconfigure_port(efx); + rtnl_unlock(); + + return count; +} + +static DEVICE_ATTR(phy_short_reach, 0644, show_phy_short_reach, + set_phy_short_reach); + /* Check that the C166 has booted successfully */ static int tenxpress_phy_check(struct efx_nic *efx) { @@ -147,27 +250,42 @@ static int tenxpress_phy_check(struct efx_nic *efx) static int tenxpress_init(struct efx_nic *efx) { - int rc, reg; + int phy_id = efx->mii.phy_id; + int reg; + int rc; - /* Turn on the clock */ - reg = (1 << CLK312_EN_LBN); - mdio_clause45_write(efx, efx->mii.phy_id, - MDIO_MMD_PCS, PCS_TEST_SELECT_REG, reg); + if (efx->phy_type == PHY_TYPE_SFX7101) { + /* Enable 312.5 MHz clock */ + mdio_clause45_write(efx, phy_id, + MDIO_MMD_PCS, PCS_TEST_SELECT_REG, + 1 << CLK312_EN_LBN); + } else { + /* Enable 312.5 MHz clock and GMII */ + reg = mdio_clause45_read(efx, phy_id, 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)); + mdio_clause45_write(efx, phy_id, MDIO_MMD_PMAPMD, + PMA_PMD_XCONTROL_REG, reg); + mdio_clause45_set_flag(efx, phy_id, MDIO_MMD_C22EXT, + GPHY_XCONTROL_REG, GPHY_ISOLATE_LBN, + false); + } rc = tenxpress_phy_check(efx); if (rc < 0) return rc; /* Set the LEDs up as: Green = Link, Amber = Link/Act, Red = Off */ - reg = mdio_clause45_read(efx, efx->mii.phy_id, - MDIO_MMD_PMAPMD, PMA_PMD_LED_CTRL_REG); - reg |= (1 << PMA_PMA_LED_ACTIVITY_LBN); - mdio_clause45_write(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD, - PMA_PMD_LED_CTRL_REG, reg); - - reg = PMA_PMD_LED_DEFAULT; - mdio_clause45_write(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD, - PMA_PMD_LED_OVERR_REG, reg); + if (efx->phy_type == PHY_TYPE_SFX7101) { + mdio_clause45_set_flag(efx, phy_id, MDIO_MMD_PMAPMD, + PMA_PMD_LED_CTRL_REG, + PMA_PMA_LED_ACTIVITY_LBN, + true); + mdio_clause45_write(efx, phy_id, MDIO_MMD_PMAPMD, + PMA_PMD_LED_OVERR_REG, PMA_PMD_LED_DEFAULT); + } return rc; } @@ -183,22 +301,43 @@ static int tenxpress_phy_init(struct efx_nic *efx) efx->phy_data = phy_data; phy_data->phy_mode = efx->phy_mode; - rc = mdio_clause45_wait_reset_mmds(efx, - TENXPRESS_REQUIRED_DEVS); - if (rc < 0) - goto fail; + if (!(efx->phy_mode & PHY_MODE_SPECIAL)) { + if (efx->phy_type == PHY_TYPE_SFT9001A) { + int reg; + reg = mdio_clause45_read(efx, efx->mii.phy_id, + MDIO_MMD_PMAPMD, + PMA_PMD_XCONTROL_REG); + reg |= (1 << PMA_PMD_EXT_SSR_LBN); + mdio_clause45_write(efx, efx->mii.phy_id, + MDIO_MMD_PMAPMD, + PMA_PMD_XCONTROL_REG, reg); + mdelay(200); + } - rc = mdio_clause45_check_mmds(efx, TENXPRESS_REQUIRED_DEVS, 0); - if (rc < 0) - goto fail; + rc = mdio_clause45_wait_reset_mmds(efx, + TENXPRESS_REQUIRED_DEVS); + if (rc < 0) + goto fail; + + rc = mdio_clause45_check_mmds(efx, TENXPRESS_REQUIRED_DEVS, 0); + if (rc < 0) + goto fail; + } rc = tenxpress_init(efx); if (rc < 0) goto fail; + if (efx->phy_type == PHY_TYPE_SFT9001B) { + rc = device_create_file(&efx->pci_dev->dev, + &dev_attr_phy_short_reach); + if (rc) + goto fail; + } + schedule_timeout_uninterruptible(HZ / 5); /* 200ms */ - /* Let XGXS and SerDes out of reset and resets 10XPress */ + /* Let XGXS and SerDes out of reset */ falcon_reset_xaui(efx); return 0; @@ -209,21 +348,24 @@ static int tenxpress_phy_init(struct efx_nic *efx) return rc; } +/* 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. Since we don't ofen special_reset, just lock. */ + * requests to fail. Since we don't often special_reset, just lock. */ spin_lock(&efx->stats_lock); /* Initiate reset */ reg = mdio_clause45_read(efx, efx->mii.phy_id, - MDIO_MMD_PMAPMD, PMA_PMD_EXT_CTRL_REG); + MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG); reg |= (1 << PMA_PMD_EXT_SSR_LBN); mdio_clause45_write(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD, - PMA_PMD_EXT_CTRL_REG, reg); + PMA_PMD_XCONTROL_REG, reg); mdelay(200); @@ -238,12 +380,14 @@ static int tenxpress_special_reset(struct efx_nic *efx) if (rc < 0) goto unlock; + /* Wait for the XGXS state machine to churn */ + mdelay(10); unlock: spin_unlock(&efx->stats_lock); return rc; } -static void tenxpress_check_bad_lp(struct efx_nic *efx, bool link_ok) +static void sfx7101_check_bad_lp(struct efx_nic *efx, bool link_ok) { struct tenxpress_phy_data *pd = efx->phy_data; int phy_id = efx->mii.phy_id; @@ -288,63 +432,142 @@ static void tenxpress_check_bad_lp(struct efx_nic *efx, bool link_ok) } } -static bool tenxpress_link_ok(struct efx_nic *efx) +static bool sfx7101_link_ok(struct efx_nic *efx) { - if (efx->loopback_mode == LOOPBACK_NONE) - return mdio_clause45_links_ok(efx, MDIO_MMDREG_DEVS_AN); - else + return mdio_clause45_links_ok(efx, + MDIO_MMDREG_DEVS_PMAPMD | + MDIO_MMDREG_DEVS_PCS | + MDIO_MMDREG_DEVS_PHYXS); +} + +static bool sft9001_link_ok(struct efx_nic *efx, struct ethtool_cmd *ecmd) +{ + int phy_id = efx->mii.phy_id; + u32 reg; + + if (efx->loopback_mode == LOOPBACK_GPHY) + return true; + else if (efx_phy_mode_disabled(efx->phy_mode)) + return false; + else if (efx->loopback_mode) return mdio_clause45_links_ok(efx, MDIO_MMDREG_DEVS_PMAPMD | MDIO_MMDREG_DEVS_PCS | MDIO_MMDREG_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 = mdio_clause45_read(efx, phy_id, MDIO_MMD_PCS, + PCS_10GBASET_STAT1); + return reg & (1 << PCS_10GBASET_BLKLK_LBN); + } else { + reg = mdio_clause45_read(efx, phy_id, MDIO_MMD_C22EXT, + C22EXT_STATUS_REG); + return reg & (1 << C22EXT_STATUS_LINK_LBN); + } } -static void tenxpress_phyxs_loopback(struct efx_nic *efx) +static void tenxpress_ext_loopback(struct efx_nic *efx) { int phy_id = efx->mii.phy_id; - int ctrl1, ctrl2; - ctrl1 = ctrl2 = mdio_clause45_read(efx, phy_id, MDIO_MMD_PHYXS, - PHYXS_TEST1); - if (efx->loopback_mode == LOOPBACK_PHYXS) - ctrl2 |= (1 << LOOPBACK_NEAR_LBN); + mdio_clause45_set_flag(efx, phy_id, MDIO_MMD_PHYXS, + PHYXS_TEST1, LOOPBACK_NEAR_LBN, + efx->loopback_mode == LOOPBACK_PHYXS); + if (efx->phy_type != PHY_TYPE_SFX7101) + mdio_clause45_set_flag(efx, phy_id, MDIO_MMD_C22EXT, + GPHY_XCONTROL_REG, + GPHY_LOOPBACK_NEAR_LBN, + efx->loopback_mode == LOOPBACK_GPHY); +} + +static void tenxpress_low_power(struct efx_nic *efx) +{ + int phy_id = efx->mii.phy_id; + + if (efx->phy_type == PHY_TYPE_SFX7101) + mdio_clause45_set_mmds_lpower( + efx, !!(efx->phy_mode & PHY_MODE_LOW_POWER), + TENXPRESS_REQUIRED_DEVS); else - ctrl2 &= ~(1 << LOOPBACK_NEAR_LBN); - if (ctrl1 != ctrl2) - mdio_clause45_write(efx, phy_id, MDIO_MMD_PHYXS, - PHYXS_TEST1, ctrl2); + mdio_clause45_set_flag( + efx, phy_id, MDIO_MMD_PMAPMD, + PMA_PMD_XCONTROL_REG, PMA_PMD_EXT_LPOWER_LBN, + !!(efx->phy_mode & PHY_MODE_LOW_POWER)); } static void tenxpress_phy_reconfigure(struct efx_nic *efx) { struct tenxpress_phy_data *phy_data = efx->phy_data; - bool loop_change = LOOPBACK_OUT_OF(phy_data, efx, - TENXPRESS_LOOPBACKS); + struct ethtool_cmd ecmd; + bool phy_mode_change, loop_reset, loop_toggle, loopback; - if (efx->phy_mode & PHY_MODE_SPECIAL) { + if (efx->phy_mode & (PHY_MODE_OFF | PHY_MODE_SPECIAL)) { phy_data->phy_mode = efx->phy_mode; return; } - /* When coming out of transmit disable, coming out of low power - * mode, or moving out of any PHY internal loopback mode, - * perform a special software reset */ - if ((efx->phy_mode == PHY_MODE_NORMAL && - phy_data->phy_mode != PHY_MODE_NORMAL) || - loop_change) { - tenxpress_special_reset(efx); - falcon_reset_xaui(efx); + tenxpress_low_power(efx); + + phy_mode_change = (efx->phy_mode == PHY_MODE_NORMAL && + phy_data->phy_mode != PHY_MODE_NORMAL); + loopback = LOOPBACK_MASK(efx) & efx->phy_op->loopbacks; + loop_toggle = LOOPBACK_CHANGED(phy_data, efx, efx->phy_op->loopbacks); + loop_reset = (LOOPBACK_OUT_OF(phy_data, efx, efx->phy_op->loopbacks) || + LOOPBACK_CHANGED(phy_data, efx, 1 << LOOPBACK_GPHY)); + + if (loop_reset || loop_toggle || loopback || phy_mode_change) { + int rc; + + efx->phy_op->get_settings(efx, &ecmd); + + 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); + } + + if (efx->phy_type != PHY_TYPE_SFX7101) { + /* Only change autoneg once, on coming out or + * going into loopback */ + if (loop_toggle) + ecmd.autoneg = !loopback; + if (loopback) { + ecmd.duplex = DUPLEX_FULL; + if (efx->loopback_mode == LOOPBACK_GPHY) + ecmd.speed = SPEED_1000; + else + ecmd.speed = SPEED_10000; + } + } + + rc = efx->phy_op->set_settings(efx, &ecmd); + WARN_ON(rc); } mdio_clause45_transmit_disable(efx); mdio_clause45_phy_reconfigure(efx); - tenxpress_phyxs_loopback(efx); + tenxpress_ext_loopback(efx); phy_data->loopback_mode = efx->loopback_mode; phy_data->phy_mode = efx->phy_mode; - efx->link_up = tenxpress_link_ok(efx); - efx->link_speed = 10000; - efx->link_fd = true; + + if (efx->phy_type == PHY_TYPE_SFX7101) { + efx->link_speed = 10000; + efx->link_fd = true; + efx->link_up = sfx7101_link_ok(efx); + } else { + efx->phy_op->get_settings(efx, &ecmd); + efx->link_speed = ecmd.speed; + efx->link_fd = ecmd.duplex == DUPLEX_FULL; + efx->link_up = sft9001_link_ok(efx, &ecmd); + } efx->link_fc = mdio_clause45_get_pause(efx); } @@ -355,15 +578,23 @@ static void tenxpress_phy_poll(struct efx_nic *efx) bool change = false, link_ok; unsigned link_fc; - link_ok = tenxpress_link_ok(efx); - if (link_ok != efx->link_up) { - change = true; + if (efx->phy_type == PHY_TYPE_SFX7101) { + link_ok = sfx7101_link_ok(efx); + if (link_ok != efx->link_up) { + change = true; + } else { + link_fc = mdio_clause45_get_pause(efx); + if (link_fc != efx->link_fc) + change = true; + } + sfx7101_check_bad_lp(efx, link_ok); } else { - link_fc = mdio_clause45_get_pause(efx); - if (link_fc != efx->link_fc) + u32 status = mdio_clause45_read(efx, efx->mii.phy_id, + MDIO_MMD_PMAPMD, + PMA_PMD_LASI_STATUS); + if (status & (1 << PMA_PMD_LS_ALARM_LBN)) change = true; } - tenxpress_check_bad_lp(efx, link_ok); if (change) falcon_sim_phy_event(efx); @@ -371,7 +602,8 @@ static void tenxpress_phy_poll(struct efx_nic *efx) if (phy_data->phy_mode != PHY_MODE_NORMAL) return; - if (atomic_read(&phy_data->bad_crc_count) > crc_error_reset_threshold) { + if (EFX_WORKAROUND_10750(efx) && + atomic_read(&phy_data->bad_crc_count) > crc_error_reset_threshold) { EFX_ERR(efx, "Resetting XAUI due to too many CRC errors\n"); falcon_reset_xaui(efx); atomic_set(&phy_data->bad_crc_count, 0); @@ -382,15 +614,20 @@ static void tenxpress_phy_fini(struct efx_nic *efx) { int reg; - /* Power down the LNPGA */ - reg = (1 << PMA_PMD_LNPGA_POWERDOWN_LBN); - mdio_clause45_write(efx, efx->mii.phy_id, 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 */ + if (efx->phy_type == PHY_TYPE_SFT9001B) { + device_remove_file(&efx->pci_dev->dev, + &dev_attr_phy_short_reach); + } else { + /* Power down the LNPGA */ + reg = (1 << PMA_PMD_LNPGA_POWERDOWN_LBN); + mdio_clause45_write(efx, efx->mii.phy_id, 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 */ + } kfree(efx->phy_data); efx->phy_data = NULL; @@ -426,14 +663,21 @@ static u32 tenxpress_get_xnp_lpa(struct efx_nic *efx) u32 lpa = 0; int reg; + if (efx->phy_type != PHY_TYPE_SFX7101) { + reg = mdio_clause45_read(efx, phy, MDIO_MMD_C22EXT, + C22EXT_MSTSLV_REG); + if (reg & (1 << C22EXT_MSTSLV_1000_HD_LBN)) + lpa |= ADVERTISED_1000baseT_Half; + if (reg & (1 << C22EXT_MSTSLV_1000_FD_LBN)) + lpa |= ADVERTISED_1000baseT_Full; + } reg = mdio_clause45_read(efx, phy, MDIO_MMD_AN, MDIO_AN_10GBT_STATUS); if (reg & (1 << MDIO_AN_10GBT_STATUS_LP_10G_LBN)) lpa |= ADVERTISED_10000baseT_Full; return lpa; } -static void -tenxpress_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) +static void sfx7101_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) { mdio_clause45_get_settings_ext(efx, ecmd, ADVERTISED_10000baseT_Full, tenxpress_get_xnp_lpa(efx)); @@ -441,7 +685,82 @@ tenxpress_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) ecmd->advertising |= ADVERTISED_10000baseT_Full; } -struct efx_phy_operations falcon_tenxpress_phy_ops = { +static void sft9001_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) +{ + int phy_id = efx->mii.phy_id; + u32 xnp_adv = 0; + int reg; + + reg = mdio_clause45_read(efx, phy_id, MDIO_MMD_PMAPMD, + PMA_PMD_SPEED_ENABLE_REG); + if (EFX_WORKAROUND_13204(efx) && (reg & (1 << PMA_PMD_100TX_ADV_LBN))) + xnp_adv |= ADVERTISED_100baseT_Full; + if (reg & (1 << PMA_PMD_1000T_ADV_LBN)) + xnp_adv |= ADVERTISED_1000baseT_Full; + if (reg & (1 << PMA_PMD_10000T_ADV_LBN)) + xnp_adv |= ADVERTISED_10000baseT_Full; + + mdio_clause45_get_settings_ext(efx, ecmd, xnp_adv, + tenxpress_get_xnp_lpa(efx)); + + ecmd->supported |= (SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_1000baseT_Full); + + /* Use the vendor defined C22ext register for duplex settings */ + if (ecmd->speed != SPEED_10000 && !ecmd->autoneg) { + reg = mdio_clause45_read(efx, phy_id, MDIO_MMD_C22EXT, + GPHY_XCONTROL_REG); + ecmd->duplex = (reg & (1 << GPHY_DUPLEX_LBN) ? + DUPLEX_FULL : DUPLEX_HALF); + } +} + +static int sft9001_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) +{ + int phy_id = efx->mii.phy_id; + int rc; + + rc = mdio_clause45_set_settings(efx, ecmd); + if (rc) + return rc; + + if (ecmd->speed != SPEED_10000 && !ecmd->autoneg) + mdio_clause45_set_flag(efx, phy_id, MDIO_MMD_C22EXT, + GPHY_XCONTROL_REG, GPHY_DUPLEX_LBN, + ecmd->duplex == DUPLEX_FULL); + + return rc; +} + +static bool sft9001_set_xnp_advertise(struct efx_nic *efx, u32 advertising) +{ + int phy = efx->mii.phy_id; + int reg = mdio_clause45_read(efx, phy, MDIO_MMD_PMAPMD, + PMA_PMD_SPEED_ENABLE_REG); + bool enabled; + + reg &= ~((1 << 2) | (1 << 3)); + if (EFX_WORKAROUND_13204(efx) && + (advertising & ADVERTISED_100baseT_Full)) + reg |= 1 << PMA_PMD_100TX_ADV_LBN; + if (advertising & ADVERTISED_1000baseT_Full) + reg |= 1 << PMA_PMD_1000T_ADV_LBN; + if (advertising & ADVERTISED_10000baseT_Full) + reg |= 1 << PMA_PMD_10000T_ADV_LBN; + mdio_clause45_write(efx, phy, MDIO_MMD_PMAPMD, + PMA_PMD_SPEED_ENABLE_REG, reg); + + enabled = (advertising & + (ADVERTISED_1000baseT_Half | + ADVERTISED_1000baseT_Full | + ADVERTISED_10000baseT_Full)); + if (EFX_WORKAROUND_13204(efx)) + enabled |= (advertising & ADVERTISED_100baseT_Full); + return enabled; +} + +struct efx_phy_operations falcon_sfx7101_phy_ops = { .macs = EFX_XMAC, .init = tenxpress_phy_init, .reconfigure = tenxpress_phy_reconfigure, @@ -449,8 +768,23 @@ struct efx_phy_operations falcon_tenxpress_phy_ops = { .fini = tenxpress_phy_fini, .clear_interrupt = efx_port_dummy_op_void, .test = tenxpress_phy_test, - .get_settings = tenxpress_get_settings, + .get_settings = sfx7101_get_settings, .set_settings = mdio_clause45_set_settings, .mmds = TENXPRESS_REQUIRED_DEVS, - .loopbacks = TENXPRESS_LOOPBACKS, + .loopbacks = SFX7101_LOOPBACKS, +}; + +struct efx_phy_operations falcon_sft9001_phy_ops = { + .macs = EFX_GMAC | EFX_XMAC, + .init = tenxpress_phy_init, + .reconfigure = tenxpress_phy_reconfigure, + .poll = tenxpress_phy_poll, + .fini = tenxpress_phy_fini, + .clear_interrupt = efx_port_dummy_op_void, + .test = tenxpress_phy_test, + .get_settings = sft9001_get_settings, + .set_settings = sft9001_set_settings, + .set_xnp_advertise = sft9001_set_xnp_advertise, + .mmds = TENXPRESS_REQUIRED_DEVS, + .loopbacks = SFT9001_LOOPBACKS, }; -- cgit v1.1 From caa8d8bbddc9157cb8f34465be98fc83faf37155 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 26 Dec 2008 13:46:12 -0800 Subject: sfc: Fix unreliable link detection in some loopback modes Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/tenxpress.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'drivers/net/sfc/tenxpress.c') diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c index b3ca2dc..1567ab5 100644 --- a/drivers/net/sfc/tenxpress.c +++ b/drivers/net/sfc/tenxpress.c @@ -445,14 +445,13 @@ static bool sft9001_link_ok(struct efx_nic *efx, struct ethtool_cmd *ecmd) int phy_id = efx->mii.phy_id; u32 reg; - if (efx->loopback_mode == LOOPBACK_GPHY) - return true; - else if (efx_phy_mode_disabled(efx->phy_mode)) + 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 mdio_clause45_links_ok(efx, MDIO_MMDREG_DEVS_PMAPMD | - MDIO_MMDREG_DEVS_PCS | MDIO_MMDREG_DEVS_PHYXS); /* We must use the same definition of link state as LASI, @@ -588,6 +587,10 @@ static void tenxpress_phy_poll(struct efx_nic *efx) change = true; } sfx7101_check_bad_lp(efx, link_ok); + } else if (efx->loopback_mode) { + bool link_ok = sft9001_link_ok(efx, NULL); + if (link_ok != efx->link_up) + change = true; } else { u32 status = mdio_clause45_read(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD, -- cgit v1.1 From 1796721a5a691a5d392abf8070ad40a0b787b667 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 26 Dec 2008 13:47:25 -0800 Subject: sfc: Add support for multiple PHY self-tests Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/tenxpress.c | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) (limited to 'drivers/net/sfc/tenxpress.c') diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c index 1567ab5..bd20482 100644 --- a/drivers/net/sfc/tenxpress.c +++ b/drivers/net/sfc/tenxpress.c @@ -654,10 +654,22 @@ void tenxpress_phy_blink(struct efx_nic *efx, bool blink) PMA_PMD_LED_OVERR_REG, reg); } -static int tenxpress_phy_test(struct efx_nic *efx) +static const char *const tenxpress_test_names[] = { + "bist" +}; + +static int +tenxpress_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 */ - return tenxpress_special_reset(efx); + rc = tenxpress_special_reset(efx); + results[0] = rc ? -1 : 1; + return rc; } static u32 tenxpress_get_xnp_lpa(struct efx_nic *efx) @@ -770,9 +782,11 @@ struct efx_phy_operations falcon_sfx7101_phy_ops = { .poll = tenxpress_phy_poll, .fini = tenxpress_phy_fini, .clear_interrupt = efx_port_dummy_op_void, - .test = tenxpress_phy_test, .get_settings = sfx7101_get_settings, .set_settings = mdio_clause45_set_settings, + .num_tests = ARRAY_SIZE(tenxpress_test_names), + .test_names = tenxpress_test_names, + .run_tests = tenxpress_run_tests, .mmds = TENXPRESS_REQUIRED_DEVS, .loopbacks = SFX7101_LOOPBACKS, }; @@ -784,10 +798,12 @@ struct efx_phy_operations falcon_sft9001_phy_ops = { .poll = tenxpress_phy_poll, .fini = tenxpress_phy_fini, .clear_interrupt = efx_port_dummy_op_void, - .test = tenxpress_phy_test, .get_settings = sft9001_get_settings, .set_settings = sft9001_set_settings, .set_xnp_advertise = sft9001_set_xnp_advertise, + .num_tests = ARRAY_SIZE(tenxpress_test_names), + .test_names = tenxpress_test_names, + .run_tests = tenxpress_run_tests, .mmds = TENXPRESS_REQUIRED_DEVS, .loopbacks = SFT9001_LOOPBACKS, }; -- cgit v1.1 From 307505e9a4ce0b13b2f996385669039806e07390 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 26 Dec 2008 13:48:00 -0800 Subject: sfc: SFT9001: Add cable diagnostics The SFT9001 firmware implements cable diagnostics; run those and include their results in a self-test. In case of a cable fault, do not fail the self-test as a whole; only faults in the NIC should cause that. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/tenxpress.c | 115 +++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 107 insertions(+), 8 deletions(-) (limited to 'drivers/net/sfc/tenxpress.c') diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c index bd20482..b976876 100644 --- a/drivers/net/sfc/tenxpress.c +++ b/drivers/net/sfc/tenxpress.c @@ -106,6 +106,25 @@ #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 */ @@ -654,12 +673,12 @@ void tenxpress_phy_blink(struct efx_nic *efx, bool blink) PMA_PMD_LED_OVERR_REG, reg); } -static const char *const tenxpress_test_names[] = { +static const char *const sfx7101_test_names[] = { "bist" }; static int -tenxpress_run_tests(struct efx_nic *efx, int *results, unsigned flags) +sfx7101_run_tests(struct efx_nic *efx, int *results, unsigned flags) { int rc; @@ -672,6 +691,86 @@ tenxpress_run_tests(struct efx_nic *efx, int *results, unsigned flags) 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 int sft9001_run_tests(struct efx_nic *efx, int *results, unsigned flags) +{ + struct ethtool_cmd ecmd; + int phy_id = efx->mii.phy_id; + int rc = 0, rc2, i, res_reg; + + if (!(flags & ETH_TEST_FL_OFFLINE)) + return 0; + + efx->phy_op->get_settings(efx, &ecmd); + + /* 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. */ + mdio_clause45_write(efx, phy_id, MDIO_MMD_PMAPMD, + PMA_PMD_CDIAG_CTRL_REG, + (1 << CDIAG_CTRL_IMMED_LBN) | + (1 << CDIAG_CTRL_BRK_LINK_LBN) | + (CDIAG_CTRL_LEN_METRES << CDIAG_CTRL_LEN_UNIT_LBN)); + i = 0; + while (mdio_clause45_read(efx, phy_id, MDIO_MMD_PMAPMD, + PMA_PMD_CDIAG_CTRL_REG) & + (1 << CDIAG_CTRL_IN_PROG_LBN)) { + if (++i == 50) { + rc = -ETIMEDOUT; + goto reset; + } + msleep(100); + } + res_reg = mdio_clause45_read(efx, efx->mii.phy_id, 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 = mdio_clause45_read(efx, efx->mii.phy_id, + 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; + } + + /* We must reset to exit cable diagnostic mode. The BIST will + * also run when we do this. */ +reset: + rc2 = tenxpress_special_reset(efx); + results[0] = rc2 ? -1 : 1; + if (!rc) + rc = rc2; + + rc2 = efx->phy_op->set_settings(efx, &ecmd); + if (!rc) + rc = rc2; + + return rc; +} + static u32 tenxpress_get_xnp_lpa(struct efx_nic *efx) { int phy = efx->mii.phy_id; @@ -784,9 +883,9 @@ struct efx_phy_operations falcon_sfx7101_phy_ops = { .clear_interrupt = efx_port_dummy_op_void, .get_settings = sfx7101_get_settings, .set_settings = mdio_clause45_set_settings, - .num_tests = ARRAY_SIZE(tenxpress_test_names), - .test_names = tenxpress_test_names, - .run_tests = tenxpress_run_tests, + .num_tests = ARRAY_SIZE(sfx7101_test_names), + .test_names = sfx7101_test_names, + .run_tests = sfx7101_run_tests, .mmds = TENXPRESS_REQUIRED_DEVS, .loopbacks = SFX7101_LOOPBACKS, }; @@ -801,9 +900,9 @@ struct efx_phy_operations falcon_sft9001_phy_ops = { .get_settings = sft9001_get_settings, .set_settings = sft9001_set_settings, .set_xnp_advertise = sft9001_set_xnp_advertise, - .num_tests = ARRAY_SIZE(tenxpress_test_names), - .test_names = tenxpress_test_names, - .run_tests = tenxpress_run_tests, + .num_tests = ARRAY_SIZE(sft9001_test_names), + .test_names = sft9001_test_names, + .run_tests = sft9001_run_tests, .mmds = TENXPRESS_REQUIRED_DEVS, .loopbacks = SFT9001_LOOPBACKS, }; -- cgit v1.1