From 43f775b2fa759a9c126a911f999f35aeb0fbbb84 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Tue, 18 Sep 2012 02:33:54 +0100 Subject: sfc: Collect all MCDI port functions into mcdi_port.c Collect together MCDI port functions from mcdi.c, mcdi_mac.c, mcdi_phy.c and siena.c. Rename the 'siena' functions accordingly. Signed-off-by: Ben Hutchings --- drivers/net/ethernet/sfc/Makefile | 3 +- drivers/net/ethernet/sfc/mcdi.c | 30 - drivers/net/ethernet/sfc/mcdi.h | 9 +- drivers/net/ethernet/sfc/mcdi_mac.c | 114 ---- drivers/net/ethernet/sfc/mcdi_phy.c | 825 --------------------------- drivers/net/ethernet/sfc/mcdi_port.c | 1010 ++++++++++++++++++++++++++++++++++ drivers/net/ethernet/sfc/phy.h | 17 - drivers/net/ethernet/sfc/siena.c | 104 +--- 8 files changed, 1024 insertions(+), 1088 deletions(-) delete mode 100644 drivers/net/ethernet/sfc/mcdi_mac.c delete mode 100644 drivers/net/ethernet/sfc/mcdi_phy.c create mode 100644 drivers/net/ethernet/sfc/mcdi_port.c (limited to 'drivers/net/ethernet/sfc') diff --git a/drivers/net/ethernet/sfc/Makefile b/drivers/net/ethernet/sfc/Makefile index 84f9c9642b7a..5b31d8a4ae5e 100644 --- a/drivers/net/ethernet/sfc/Makefile +++ b/drivers/net/ethernet/sfc/Makefile @@ -1,8 +1,7 @@ sfc-y += efx.o nic.o falcon.o siena.o tx.o rx.o filter.o \ - mcdi_mac.o \ selftest.o ethtool.o qt202x_phy.o mdio_10g.o \ tenxpress.o txc43128_phy.o falcon_boards.o \ - mcdi.o mcdi_phy.o mcdi_mon.o ptp.o + mcdi.o mcdi_port.o mcdi_mon.o ptp.o sfc-$(CONFIG_SFC_MTD) += mtd.o sfc-$(CONFIG_SFC_SRIOV) += siena_sriov.o diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c index 4781e02c4f05..5132abaad649 100644 --- a/drivers/net/ethernet/sfc/mcdi.c +++ b/drivers/net/ethernet/sfc/mcdi.c @@ -514,36 +514,6 @@ static void efx_mcdi_ev_death(struct efx_nic *efx, int rc) spin_unlock(&mcdi->iface_lock); } -static unsigned int efx_mcdi_event_link_speed[] = { - [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100, - [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000, - [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000, -}; - - -static void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev) -{ - u32 flags, fcntl, speed, lpa; - - speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED); - EFX_BUG_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed)); - speed = efx_mcdi_event_link_speed[speed]; - - flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS); - fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL); - lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP); - - /* efx->link_state is only modified by efx_mcdi_phy_get_link(), - * which is only run after flushing the event queues. Therefore, it - * is safe to modify the link state outside of the mac_lock here. - */ - efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl); - - efx_mcdi_phy_check_fcntl(efx, lpa); - - efx_link_status_changed(efx); -} - /* Called from falcon_process_eventq for MCDI events */ void efx_mcdi_process_event(struct efx_channel *channel, efx_qword_t *event) diff --git a/drivers/net/ethernet/sfc/mcdi.h b/drivers/net/ethernet/sfc/mcdi.h index 73bc76eabb83..c8f2cd57041c 100644 --- a/drivers/net/ethernet/sfc/mcdi.h +++ b/drivers/net/ethernet/sfc/mcdi.h @@ -196,9 +196,14 @@ extern int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out); extern int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id); extern int efx_mcdi_wol_filter_reset(struct efx_nic *efx); extern int efx_mcdi_flush_rxqs(struct efx_nic *efx); +extern int efx_mcdi_port_probe(struct efx_nic *efx); +extern void efx_mcdi_port_remove(struct efx_nic *efx); +extern int efx_mcdi_port_reconfigure(struct efx_nic *efx); +extern void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev); extern int efx_mcdi_set_mac(struct efx_nic *efx); -extern int efx_mcdi_mac_stats(struct efx_nic *efx, dma_addr_t dma_addr, - u32 dma_len, int enable, int clear); +#define EFX_MC_STATS_GENERATION_INVALID ((__force __le64)(-1)) +extern void efx_mcdi_mac_start_stats(struct efx_nic *efx); +extern void efx_mcdi_mac_stop_stats(struct efx_nic *efx); extern bool efx_mcdi_mac_check_fault(struct efx_nic *efx); extern enum reset_type efx_mcdi_map_reset_reason(enum reset_type reason); extern int efx_mcdi_reset(struct efx_nic *efx, enum reset_type method); diff --git a/drivers/net/ethernet/sfc/mcdi_mac.c b/drivers/net/ethernet/sfc/mcdi_mac.c deleted file mode 100644 index 1b84b90fbef6..000000000000 --- a/drivers/net/ethernet/sfc/mcdi_mac.c +++ /dev/null @@ -1,114 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare Solarstorm network controllers and boards - * Copyright 2009-2010 Solarflare Communications Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - */ - -#include "net_driver.h" -#include "efx.h" -#include "mcdi.h" -#include "mcdi_pcol.h" - -int efx_mcdi_set_mac(struct efx_nic *efx) -{ - u32 reject, fcntl; - MCDI_DECLARE_BUF(cmdbytes, MC_CMD_SET_MAC_IN_LEN); - - memcpy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR), - efx->net_dev->dev_addr, ETH_ALEN); - - MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU, - EFX_MAX_FRAME_LEN(efx->net_dev->mtu)); - MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0); - - /* The MCDI command provides for controlling accept/reject - * of broadcast packets too, but the driver doesn't currently - * expose this. */ - reject = (efx->promiscuous) ? 0 : - (1 << MC_CMD_SET_MAC_IN_REJECT_UNCST_LBN); - MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_REJECT, reject); - - switch (efx->wanted_fc) { - case EFX_FC_RX | EFX_FC_TX: - fcntl = MC_CMD_FCNTL_BIDIR; - break; - case EFX_FC_RX: - fcntl = MC_CMD_FCNTL_RESPOND; - break; - default: - fcntl = MC_CMD_FCNTL_OFF; - break; - } - if (efx->wanted_fc & EFX_FC_AUTO) - fcntl = MC_CMD_FCNTL_AUTO; - if (efx->fc_disable) - fcntl = MC_CMD_FCNTL_OFF; - - MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl); - - return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes, sizeof(cmdbytes), - NULL, 0, NULL); -} - -bool efx_mcdi_mac_check_fault(struct efx_nic *efx) -{ - MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); - size_t outlength; - int rc; - - BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); - - rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, - outbuf, sizeof(outbuf), &outlength); - if (rc) { - netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", - __func__, rc); - return true; - } - - return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0; -} - -int efx_mcdi_mac_stats(struct efx_nic *efx, dma_addr_t dma_addr, - u32 dma_len, int enable, int clear) -{ - MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN); - int rc; - efx_dword_t *cmd_ptr; - int period = enable ? 1000 : 0; - u32 addr_hi; - u32 addr_lo; - - BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0); - - addr_lo = ((u64)dma_addr) >> 0; - addr_hi = ((u64)dma_addr) >> 32; - - MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_ADDR_LO, addr_lo); - MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_ADDR_HI, addr_hi); - cmd_ptr = (efx_dword_t *)MCDI_PTR(inbuf, MAC_STATS_IN_CMD); - EFX_POPULATE_DWORD_7(*cmd_ptr, - MC_CMD_MAC_STATS_IN_DMA, !!enable, - MC_CMD_MAC_STATS_IN_CLEAR, clear, - MC_CMD_MAC_STATS_IN_PERIODIC_CHANGE, 1, - MC_CMD_MAC_STATS_IN_PERIODIC_ENABLE, !!enable, - MC_CMD_MAC_STATS_IN_PERIODIC_CLEAR, 0, - MC_CMD_MAC_STATS_IN_PERIODIC_NOEVENT, 1, - MC_CMD_MAC_STATS_IN_PERIOD_MS, period); - MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len); - - rc = efx_mcdi_rpc(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf), - NULL, 0, NULL); - if (rc) - goto fail; - - return 0; - -fail: - netif_err(efx, hw, efx->net_dev, "%s: %s failed rc=%d\n", - __func__, enable ? "enable" : "disable", rc); - return rc; -} diff --git a/drivers/net/ethernet/sfc/mcdi_phy.c b/drivers/net/ethernet/sfc/mcdi_phy.c deleted file mode 100644 index 86c0d21b84bc..000000000000 --- a/drivers/net/ethernet/sfc/mcdi_phy.c +++ /dev/null @@ -1,825 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare Solarstorm network controllers and boards - * Copyright 2009-2010 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 PHY related operations via MCDI. - */ - -#include -#include "efx.h" -#include "phy.h" -#include "mcdi.h" -#include "mcdi_pcol.h" -#include "nic.h" -#include "selftest.h" - -struct efx_mcdi_phy_data { - u32 flags; - u32 type; - u32 supported_cap; - u32 channel; - u32 port; - u32 stats_mask; - u8 name[20]; - u32 media; - u32 mmd_mask; - u8 revision[20]; - u32 forced_cap; -}; - -static int -efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_data *cfg) -{ - MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_CFG_OUT_LEN); - size_t outlen; - int rc; - - BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_IN_LEN != 0); - BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_OUT_NAME_LEN != sizeof(cfg->name)); - - rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_CFG, NULL, 0, - outbuf, sizeof(outbuf), &outlen); - if (rc) - goto fail; - - if (outlen < MC_CMD_GET_PHY_CFG_OUT_LEN) { - rc = -EIO; - goto fail; - } - - cfg->flags = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_FLAGS); - cfg->type = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_TYPE); - cfg->supported_cap = - MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_SUPPORTED_CAP); - cfg->channel = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_CHANNEL); - cfg->port = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_PRT); - cfg->stats_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_STATS_MASK); - memcpy(cfg->name, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_NAME), - sizeof(cfg->name)); - cfg->media = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MEDIA_TYPE); - cfg->mmd_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MMD_MASK); - memcpy(cfg->revision, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_REVISION), - sizeof(cfg->revision)); - - return 0; - -fail: - netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); - return rc; -} - -static int efx_mcdi_set_link(struct efx_nic *efx, u32 capabilities, - u32 flags, u32 loopback_mode, - u32 loopback_speed) -{ - MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_LINK_IN_LEN); - int rc; - - BUILD_BUG_ON(MC_CMD_SET_LINK_OUT_LEN != 0); - - MCDI_SET_DWORD(inbuf, SET_LINK_IN_CAP, capabilities); - MCDI_SET_DWORD(inbuf, SET_LINK_IN_FLAGS, flags); - MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_MODE, loopback_mode); - MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_SPEED, loopback_speed); - - rc = efx_mcdi_rpc(efx, MC_CMD_SET_LINK, inbuf, sizeof(inbuf), - NULL, 0, NULL); - if (rc) - goto fail; - - return 0; - -fail: - netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); - return rc; -} - -static int efx_mcdi_loopback_modes(struct efx_nic *efx, u64 *loopback_modes) -{ - MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LOOPBACK_MODES_OUT_LEN); - size_t outlen; - int rc; - - rc = efx_mcdi_rpc(efx, MC_CMD_GET_LOOPBACK_MODES, NULL, 0, - outbuf, sizeof(outbuf), &outlen); - if (rc) - goto fail; - - if (outlen < MC_CMD_GET_LOOPBACK_MODES_OUT_LEN) { - rc = -EIO; - goto fail; - } - - *loopback_modes = MCDI_QWORD(outbuf, GET_LOOPBACK_MODES_OUT_SUGGESTED); - - return 0; - -fail: - netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); - return rc; -} - -int efx_mcdi_mdio_read(struct efx_nic *efx, unsigned int bus, - unsigned int prtad, unsigned int devad, u16 addr, - u16 *value_out, u32 *status_out) -{ - MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_READ_IN_LEN); - MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_READ_OUT_LEN); - size_t outlen; - int rc; - - MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, bus); - MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad); - MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad); - MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr); - - rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf), - outbuf, sizeof(outbuf), &outlen); - if (rc) - goto fail; - - *value_out = (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE); - *status_out = MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS); - return 0; - -fail: - netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); - return rc; -} - -int efx_mcdi_mdio_write(struct efx_nic *efx, unsigned int bus, - unsigned int prtad, unsigned int devad, u16 addr, - u16 value, u32 *status_out) -{ - MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_WRITE_IN_LEN); - MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_WRITE_OUT_LEN); - size_t outlen; - int rc; - - MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_BUS, bus); - MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_PRTAD, prtad); - MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_DEVAD, devad); - MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_ADDR, addr); - MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_VALUE, value); - - rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_WRITE, inbuf, sizeof(inbuf), - outbuf, sizeof(outbuf), &outlen); - if (rc) - goto fail; - - *status_out = MCDI_DWORD(outbuf, MDIO_WRITE_OUT_STATUS); - return 0; - -fail: - netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); - return rc; -} - -static u32 mcdi_to_ethtool_cap(u32 media, u32 cap) -{ - u32 result = 0; - - switch (media) { - case MC_CMD_MEDIA_KX4: - result |= SUPPORTED_Backplane; - if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) - result |= SUPPORTED_1000baseKX_Full; - if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) - result |= SUPPORTED_10000baseKX4_Full; - break; - - case MC_CMD_MEDIA_XFP: - case MC_CMD_MEDIA_SFP_PLUS: - result |= SUPPORTED_FIBRE; - break; - - case MC_CMD_MEDIA_BASE_T: - result |= SUPPORTED_TP; - if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN)) - result |= SUPPORTED_10baseT_Half; - if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN)) - result |= SUPPORTED_10baseT_Full; - if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN)) - result |= SUPPORTED_100baseT_Half; - if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN)) - result |= SUPPORTED_100baseT_Full; - if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN)) - result |= SUPPORTED_1000baseT_Half; - if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) - result |= SUPPORTED_1000baseT_Full; - if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) - result |= SUPPORTED_10000baseT_Full; - break; - } - - if (cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) - result |= SUPPORTED_Pause; - if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) - result |= SUPPORTED_Asym_Pause; - if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) - result |= SUPPORTED_Autoneg; - - return result; -} - -static u32 ethtool_to_mcdi_cap(u32 cap) -{ - u32 result = 0; - - if (cap & SUPPORTED_10baseT_Half) - result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN); - if (cap & SUPPORTED_10baseT_Full) - result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN); - if (cap & SUPPORTED_100baseT_Half) - result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN); - if (cap & SUPPORTED_100baseT_Full) - result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN); - if (cap & SUPPORTED_1000baseT_Half) - result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN); - if (cap & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseKX_Full)) - result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN); - if (cap & (SUPPORTED_10000baseT_Full | SUPPORTED_10000baseKX4_Full)) - result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN); - if (cap & SUPPORTED_Pause) - result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN); - if (cap & SUPPORTED_Asym_Pause) - result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN); - if (cap & SUPPORTED_Autoneg) - result |= (1 << MC_CMD_PHY_CAP_AN_LBN); - - return result; -} - -static u32 efx_get_mcdi_phy_flags(struct efx_nic *efx) -{ - struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; - enum efx_phy_mode mode, supported; - u32 flags; - - /* TODO: Advertise the capabilities supported by this PHY */ - supported = 0; - if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_TXDIS_LBN)) - supported |= PHY_MODE_TX_DISABLED; - if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_LOWPOWER_LBN)) - supported |= PHY_MODE_LOW_POWER; - if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_POWEROFF_LBN)) - supported |= PHY_MODE_OFF; - - mode = efx->phy_mode & supported; - - flags = 0; - if (mode & PHY_MODE_TX_DISABLED) - flags |= (1 << MC_CMD_SET_LINK_IN_TXDIS_LBN); - if (mode & PHY_MODE_LOW_POWER) - flags |= (1 << MC_CMD_SET_LINK_IN_LOWPOWER_LBN); - if (mode & PHY_MODE_OFF) - flags |= (1 << MC_CMD_SET_LINK_IN_POWEROFF_LBN); - - return flags; -} - -static u32 mcdi_to_ethtool_media(u32 media) -{ - switch (media) { - case MC_CMD_MEDIA_XAUI: - case MC_CMD_MEDIA_CX4: - case MC_CMD_MEDIA_KX4: - return PORT_OTHER; - - case MC_CMD_MEDIA_XFP: - case MC_CMD_MEDIA_SFP_PLUS: - return PORT_FIBRE; - - case MC_CMD_MEDIA_BASE_T: - return PORT_TP; - - default: - return PORT_OTHER; - } -} - -static int efx_mcdi_phy_probe(struct efx_nic *efx) -{ - struct efx_mcdi_phy_data *phy_data; - MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); - u32 caps; - int rc; - - /* Initialise and populate phy_data */ - phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL); - if (phy_data == NULL) - return -ENOMEM; - - rc = efx_mcdi_get_phy_cfg(efx, phy_data); - if (rc != 0) - goto fail; - - /* Read initial link advertisement */ - BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); - rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, - outbuf, sizeof(outbuf), NULL); - if (rc) - goto fail; - - /* Fill out nic state */ - efx->phy_data = phy_data; - efx->phy_type = phy_data->type; - - efx->mdio_bus = phy_data->channel; - efx->mdio.prtad = phy_data->port; - efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22); - efx->mdio.mode_support = 0; - if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22)) - efx->mdio.mode_support |= MDIO_SUPPORTS_C22; - if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22)) - efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; - - caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP); - if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN)) - efx->link_advertising = - mcdi_to_ethtool_cap(phy_data->media, caps); - else - phy_data->forced_cap = caps; - - /* Assert that we can map efx -> mcdi loopback modes */ - BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE); - BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA); - BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC); - BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII); - BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS); - BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI); - BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII); - BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII); - BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR); - BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI); - BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR); - BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR); - BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR); - BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR); - BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY); - BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS); - BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS); - BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD); - BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT); - BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS); - BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS); - BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR); - BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR); - BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS); - BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS); - BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR); - BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS); - - rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes); - if (rc != 0) - goto fail; - /* The MC indicates that LOOPBACK_NONE is a valid loopback mode, - * but by convention we don't */ - efx->loopback_modes &= ~(1 << LOOPBACK_NONE); - - /* Set the initial link mode */ - efx_mcdi_phy_decode_link( - efx, &efx->link_state, - MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), - MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), - MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); - - /* Default to Autonegotiated flow control if the PHY supports it */ - efx->wanted_fc = EFX_FC_RX | EFX_FC_TX; - if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) - efx->wanted_fc |= EFX_FC_AUTO; - efx_link_set_wanted_fc(efx, efx->wanted_fc); - - return 0; - -fail: - kfree(phy_data); - return rc; -} - -int efx_mcdi_phy_reconfigure(struct efx_nic *efx) -{ - struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; - u32 caps = (efx->link_advertising ? - ethtool_to_mcdi_cap(efx->link_advertising) : - phy_cfg->forced_cap); - - return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), - efx->loopback_mode, 0); -} - -void efx_mcdi_phy_decode_link(struct efx_nic *efx, - struct efx_link_state *link_state, - u32 speed, u32 flags, u32 fcntl) -{ - switch (fcntl) { - case MC_CMD_FCNTL_AUTO: - WARN_ON(1); /* This is not a link mode */ - link_state->fc = EFX_FC_AUTO | EFX_FC_TX | EFX_FC_RX; - break; - case MC_CMD_FCNTL_BIDIR: - link_state->fc = EFX_FC_TX | EFX_FC_RX; - break; - case MC_CMD_FCNTL_RESPOND: - link_state->fc = EFX_FC_RX; - break; - default: - WARN_ON(1); - case MC_CMD_FCNTL_OFF: - link_state->fc = 0; - break; - } - - link_state->up = !!(flags & (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN)); - link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN)); - link_state->speed = speed; -} - -/* Verify that the forced flow control settings (!EFX_FC_AUTO) are - * supported by the link partner. Warn the user if this isn't the case - */ -void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa) -{ - struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; - u32 rmtadv; - - /* The link partner capabilities are only relevant if the - * link supports flow control autonegotiation */ - if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) - return; - - /* If flow control autoneg is supported and enabled, then fine */ - if (efx->wanted_fc & EFX_FC_AUTO) - return; - - rmtadv = 0; - if (lpa & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) - rmtadv |= ADVERTISED_Pause; - if (lpa & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) - rmtadv |= ADVERTISED_Asym_Pause; - - if ((efx->wanted_fc & EFX_FC_TX) && rmtadv == ADVERTISED_Asym_Pause) - netif_err(efx, link, efx->net_dev, - "warning: link partner doesn't support pause frames"); -} - -static bool efx_mcdi_phy_poll(struct efx_nic *efx) -{ - struct efx_link_state old_state = efx->link_state; - MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); - int rc; - - WARN_ON(!mutex_is_locked(&efx->mac_lock)); - - BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); - - rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, - outbuf, sizeof(outbuf), NULL); - if (rc) { - netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", - __func__, rc); - efx->link_state.up = false; - } else { - efx_mcdi_phy_decode_link( - efx, &efx->link_state, - MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), - MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), - MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); - } - - return !efx_link_state_equal(&efx->link_state, &old_state); -} - -static void efx_mcdi_phy_remove(struct efx_nic *efx) -{ - struct efx_mcdi_phy_data *phy_data = efx->phy_data; - - efx->phy_data = NULL; - kfree(phy_data); -} - -static void efx_mcdi_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) -{ - struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; - MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); - int rc; - - ecmd->supported = - mcdi_to_ethtool_cap(phy_cfg->media, phy_cfg->supported_cap); - ecmd->advertising = efx->link_advertising; - ethtool_cmd_speed_set(ecmd, efx->link_state.speed); - ecmd->duplex = efx->link_state.fd; - ecmd->port = mcdi_to_ethtool_media(phy_cfg->media); - ecmd->phy_address = phy_cfg->port; - ecmd->transceiver = XCVR_INTERNAL; - ecmd->autoneg = !!(efx->link_advertising & ADVERTISED_Autoneg); - ecmd->mdio_support = (efx->mdio.mode_support & - (MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22)); - - BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); - rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, - outbuf, sizeof(outbuf), NULL); - if (rc) { - netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", - __func__, rc); - return; - } - ecmd->lp_advertising = - mcdi_to_ethtool_cap(phy_cfg->media, - MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP)); -} - -static int efx_mcdi_phy_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) -{ - struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; - u32 caps; - int rc; - - if (ecmd->autoneg) { - caps = (ethtool_to_mcdi_cap(ecmd->advertising) | - 1 << MC_CMD_PHY_CAP_AN_LBN); - } else if (ecmd->duplex) { - switch (ethtool_cmd_speed(ecmd)) { - case 10: caps = 1 << MC_CMD_PHY_CAP_10FDX_LBN; break; - case 100: caps = 1 << MC_CMD_PHY_CAP_100FDX_LBN; break; - case 1000: caps = 1 << MC_CMD_PHY_CAP_1000FDX_LBN; break; - case 10000: caps = 1 << MC_CMD_PHY_CAP_10000FDX_LBN; break; - default: return -EINVAL; - } - } else { - switch (ethtool_cmd_speed(ecmd)) { - case 10: caps = 1 << MC_CMD_PHY_CAP_10HDX_LBN; break; - case 100: caps = 1 << MC_CMD_PHY_CAP_100HDX_LBN; break; - case 1000: caps = 1 << MC_CMD_PHY_CAP_1000HDX_LBN; break; - default: return -EINVAL; - } - } - - rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), - efx->loopback_mode, 0); - if (rc) - return rc; - - if (ecmd->autoneg) { - efx_link_set_advertising( - efx, ecmd->advertising | ADVERTISED_Autoneg); - phy_cfg->forced_cap = 0; - } else { - efx_link_set_advertising(efx, 0); - phy_cfg->forced_cap = caps; - } - return 0; -} - -static int efx_mcdi_phy_test_alive(struct efx_nic *efx) -{ - MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_STATE_OUT_LEN); - size_t outlen; - int rc; - - BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN != 0); - - rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_STATE, NULL, 0, - outbuf, sizeof(outbuf), &outlen); - if (rc) - return rc; - - if (outlen < MC_CMD_GET_PHY_STATE_OUT_LEN) - return -EIO; - if (MCDI_DWORD(outbuf, GET_PHY_STATE_OUT_STATE) != MC_CMD_PHY_STATE_OK) - return -EINVAL; - - return 0; -} - -static const char *const mcdi_sft9001_cable_diag_names[] = { - "cable.pairA.length", - "cable.pairB.length", - "cable.pairC.length", - "cable.pairD.length", - "cable.pairA.status", - "cable.pairB.status", - "cable.pairC.status", - "cable.pairD.status", -}; - -static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode, - int *results) -{ - unsigned int retry, i, count = 0; - size_t outlen; - u32 status; - MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN); - MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_SFT9001_LEN); - u8 *ptr; - int rc; - - BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0); - MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_mode); - rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST, - inbuf, MC_CMD_START_BIST_IN_LEN, NULL, 0, NULL); - if (rc) - goto out; - - /* Wait up to 10s for BIST to finish */ - for (retry = 0; retry < 100; ++retry) { - BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0); - rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0, - outbuf, sizeof(outbuf), &outlen); - if (rc) - goto out; - - status = MCDI_DWORD(outbuf, POLL_BIST_OUT_RESULT); - if (status != MC_CMD_POLL_BIST_RUNNING) - goto finished; - - msleep(100); - } - - rc = -ETIMEDOUT; - goto out; - -finished: - results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1; - - /* SFT9001 specific cable diagnostics output */ - if (efx->phy_type == PHY_TYPE_SFT9001B && - (bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT || - bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) { - ptr = MCDI_PTR(outbuf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A); - if (status == MC_CMD_POLL_BIST_PASSED && - outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) { - for (i = 0; i < 8; i++) { - results[count + i] = - EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i], - EFX_DWORD_0); - } - } - count += 8; - } - rc = count; - -out: - return rc; -} - -static int efx_mcdi_phy_run_tests(struct efx_nic *efx, int *results, - unsigned flags) -{ - struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; - u32 mode; - int rc; - - if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { - rc = efx_mcdi_bist(efx, MC_CMD_PHY_BIST, results); - if (rc < 0) - return rc; - - results += rc; - } - - /* If we support both LONG and SHORT, then run each in response to - * break or not. Otherwise, run the one we support */ - mode = 0; - if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN)) { - if ((flags & ETH_TEST_FL_OFFLINE) && - (phy_cfg->flags & - (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) - mode = MC_CMD_PHY_BIST_CABLE_LONG; - else - mode = MC_CMD_PHY_BIST_CABLE_SHORT; - } else if (phy_cfg->flags & - (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN)) - mode = MC_CMD_PHY_BIST_CABLE_LONG; - - if (mode != 0) { - rc = efx_mcdi_bist(efx, mode, results); - if (rc < 0) - return rc; - results += rc; - } - - return 0; -} - -static const char *efx_mcdi_phy_test_name(struct efx_nic *efx, - unsigned int index) -{ - struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; - - if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { - if (index == 0) - return "bist"; - --index; - } - - if (phy_cfg->flags & ((1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN) | - (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) { - if (index == 0) - return "cable"; - --index; - - if (efx->phy_type == PHY_TYPE_SFT9001B) { - if (index < ARRAY_SIZE(mcdi_sft9001_cable_diag_names)) - return mcdi_sft9001_cable_diag_names[index]; - index -= ARRAY_SIZE(mcdi_sft9001_cable_diag_names); - } - } - - return NULL; -} - -#define SFP_PAGE_SIZE 128 -#define SFP_NUM_PAGES 2 -static int efx_mcdi_phy_get_module_eeprom(struct efx_nic *efx, - struct ethtool_eeprom *ee, u8 *data) -{ - MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX); - MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN); - size_t outlen; - int rc; - unsigned int payload_len; - unsigned int space_remaining = ee->len; - unsigned int page; - unsigned int page_off; - unsigned int to_copy; - u8 *user_data = data; - - BUILD_BUG_ON(SFP_PAGE_SIZE * SFP_NUM_PAGES != ETH_MODULE_SFF_8079_LEN); - - page_off = ee->offset % SFP_PAGE_SIZE; - page = ee->offset / SFP_PAGE_SIZE; - - while (space_remaining && (page < SFP_NUM_PAGES)) { - MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page); - - rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_MEDIA_INFO, - inbuf, sizeof(inbuf), - outbuf, sizeof(outbuf), - &outlen); - if (rc) - return rc; - - if (outlen < (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST + - SFP_PAGE_SIZE)) - return -EIO; - - payload_len = MCDI_DWORD(outbuf, - GET_PHY_MEDIA_INFO_OUT_DATALEN); - if (payload_len != SFP_PAGE_SIZE) - return -EIO; - - /* Copy as much as we can into data */ - payload_len -= page_off; - to_copy = (space_remaining < payload_len) ? - space_remaining : payload_len; - - memcpy(user_data, - MCDI_PTR(outbuf, GET_PHY_MEDIA_INFO_OUT_DATA) + page_off, - to_copy); - - space_remaining -= to_copy; - user_data += to_copy; - page_off = 0; - page++; - } - - return 0; -} - -static int efx_mcdi_phy_get_module_info(struct efx_nic *efx, - struct ethtool_modinfo *modinfo) -{ - struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; - - switch (phy_cfg->media) { - case MC_CMD_MEDIA_SFP_PLUS: - modinfo->type = ETH_MODULE_SFF_8079; - modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; - return 0; - default: - return -EOPNOTSUPP; - } -} - -const struct efx_phy_operations efx_mcdi_phy_ops = { - .probe = efx_mcdi_phy_probe, - .init = efx_port_dummy_op_int, - .reconfigure = efx_mcdi_phy_reconfigure, - .poll = efx_mcdi_phy_poll, - .fini = efx_port_dummy_op_void, - .remove = efx_mcdi_phy_remove, - .get_settings = efx_mcdi_phy_get_settings, - .set_settings = efx_mcdi_phy_set_settings, - .test_alive = efx_mcdi_phy_test_alive, - .run_tests = efx_mcdi_phy_run_tests, - .test_name = efx_mcdi_phy_test_name, - .get_module_eeprom = efx_mcdi_phy_get_module_eeprom, - .get_module_info = efx_mcdi_phy_get_module_info, -}; diff --git a/drivers/net/ethernet/sfc/mcdi_port.c b/drivers/net/ethernet/sfc/mcdi_port.c new file mode 100644 index 000000000000..8f31e3d3f304 --- /dev/null +++ b/drivers/net/ethernet/sfc/mcdi_port.c @@ -0,0 +1,1010 @@ +/**************************************************************************** + * Driver for Solarflare Solarstorm network controllers and boards + * Copyright 2009-2010 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 PHY related operations via MCDI. + */ + +#include +#include "efx.h" +#include "phy.h" +#include "mcdi.h" +#include "mcdi_pcol.h" +#include "nic.h" +#include "selftest.h" + +struct efx_mcdi_phy_data { + u32 flags; + u32 type; + u32 supported_cap; + u32 channel; + u32 port; + u32 stats_mask; + u8 name[20]; + u32 media; + u32 mmd_mask; + u8 revision[20]; + u32 forced_cap; +}; + +static int +efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_data *cfg) +{ + MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_CFG_OUT_LEN); + size_t outlen; + int rc; + + BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_IN_LEN != 0); + BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_OUT_NAME_LEN != sizeof(cfg->name)); + + rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_CFG, NULL, 0, + outbuf, sizeof(outbuf), &outlen); + if (rc) + goto fail; + + if (outlen < MC_CMD_GET_PHY_CFG_OUT_LEN) { + rc = -EIO; + goto fail; + } + + cfg->flags = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_FLAGS); + cfg->type = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_TYPE); + cfg->supported_cap = + MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_SUPPORTED_CAP); + cfg->channel = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_CHANNEL); + cfg->port = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_PRT); + cfg->stats_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_STATS_MASK); + memcpy(cfg->name, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_NAME), + sizeof(cfg->name)); + cfg->media = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MEDIA_TYPE); + cfg->mmd_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MMD_MASK); + memcpy(cfg->revision, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_REVISION), + sizeof(cfg->revision)); + + return 0; + +fail: + netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); + return rc; +} + +static int efx_mcdi_set_link(struct efx_nic *efx, u32 capabilities, + u32 flags, u32 loopback_mode, + u32 loopback_speed) +{ + MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_LINK_IN_LEN); + int rc; + + BUILD_BUG_ON(MC_CMD_SET_LINK_OUT_LEN != 0); + + MCDI_SET_DWORD(inbuf, SET_LINK_IN_CAP, capabilities); + MCDI_SET_DWORD(inbuf, SET_LINK_IN_FLAGS, flags); + MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_MODE, loopback_mode); + MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_SPEED, loopback_speed); + + rc = efx_mcdi_rpc(efx, MC_CMD_SET_LINK, inbuf, sizeof(inbuf), + NULL, 0, NULL); + if (rc) + goto fail; + + return 0; + +fail: + netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); + return rc; +} + +static int efx_mcdi_loopback_modes(struct efx_nic *efx, u64 *loopback_modes) +{ + MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LOOPBACK_MODES_OUT_LEN); + size_t outlen; + int rc; + + rc = efx_mcdi_rpc(efx, MC_CMD_GET_LOOPBACK_MODES, NULL, 0, + outbuf, sizeof(outbuf), &outlen); + if (rc) + goto fail; + + if (outlen < MC_CMD_GET_LOOPBACK_MODES_OUT_LEN) { + rc = -EIO; + goto fail; + } + + *loopback_modes = MCDI_QWORD(outbuf, GET_LOOPBACK_MODES_OUT_SUGGESTED); + + return 0; + +fail: + netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); + return rc; +} + +static int efx_mcdi_mdio_read(struct net_device *net_dev, + int prtad, int devad, u16 addr) +{ + struct efx_nic *efx = netdev_priv(net_dev); + MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_READ_IN_LEN); + MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_READ_OUT_LEN); + size_t outlen; + int rc; + + MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, efx->mdio_bus); + MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad); + MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad); + MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr); + + rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf), + outbuf, sizeof(outbuf), &outlen); + if (rc) + goto fail; + + if (MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS) != + MC_CMD_MDIO_STATUS_GOOD) + return -EIO; + + return (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE); + +fail: + netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); + return rc; +} + +static int efx_mcdi_mdio_write(struct net_device *net_dev, + int prtad, int devad, u16 addr, u16 value) +{ + struct efx_nic *efx = netdev_priv(net_dev); + MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_WRITE_IN_LEN); + MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_WRITE_OUT_LEN); + size_t outlen; + int rc; + + MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_BUS, efx->mdio_bus); + MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_PRTAD, prtad); + MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_DEVAD, devad); + MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_ADDR, addr); + MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_VALUE, value); + + rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_WRITE, inbuf, sizeof(inbuf), + outbuf, sizeof(outbuf), &outlen); + if (rc) + goto fail; + + if (MCDI_DWORD(outbuf, MDIO_WRITE_OUT_STATUS) != + MC_CMD_MDIO_STATUS_GOOD) + return -EIO; + + return 0; + +fail: + netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); + return rc; +} + +static u32 mcdi_to_ethtool_cap(u32 media, u32 cap) +{ + u32 result = 0; + + switch (media) { + case MC_CMD_MEDIA_KX4: + result |= SUPPORTED_Backplane; + if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) + result |= SUPPORTED_1000baseKX_Full; + if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) + result |= SUPPORTED_10000baseKX4_Full; + break; + + case MC_CMD_MEDIA_XFP: + case MC_CMD_MEDIA_SFP_PLUS: + result |= SUPPORTED_FIBRE; + break; + + case MC_CMD_MEDIA_BASE_T: + result |= SUPPORTED_TP; + if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN)) + result |= SUPPORTED_10baseT_Half; + if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN)) + result |= SUPPORTED_10baseT_Full; + if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN)) + result |= SUPPORTED_100baseT_Half; + if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN)) + result |= SUPPORTED_100baseT_Full; + if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN)) + result |= SUPPORTED_1000baseT_Half; + if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) + result |= SUPPORTED_1000baseT_Full; + if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) + result |= SUPPORTED_10000baseT_Full; + break; + } + + if (cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) + result |= SUPPORTED_Pause; + if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) + result |= SUPPORTED_Asym_Pause; + if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) + result |= SUPPORTED_Autoneg; + + return result; +} + +static u32 ethtool_to_mcdi_cap(u32 cap) +{ + u32 result = 0; + + if (cap & SUPPORTED_10baseT_Half) + result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN); + if (cap & SUPPORTED_10baseT_Full) + result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN); + if (cap & SUPPORTED_100baseT_Half) + result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN); + if (cap & SUPPORTED_100baseT_Full) + result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN); + if (cap & SUPPORTED_1000baseT_Half) + result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN); + if (cap & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseKX_Full)) + result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN); + if (cap & (SUPPORTED_10000baseT_Full | SUPPORTED_10000baseKX4_Full)) + result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN); + if (cap & SUPPORTED_Pause) + result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN); + if (cap & SUPPORTED_Asym_Pause) + result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN); + if (cap & SUPPORTED_Autoneg) + result |= (1 << MC_CMD_PHY_CAP_AN_LBN); + + return result; +} + +static u32 efx_get_mcdi_phy_flags(struct efx_nic *efx) +{ + struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; + enum efx_phy_mode mode, supported; + u32 flags; + + /* TODO: Advertise the capabilities supported by this PHY */ + supported = 0; + if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_TXDIS_LBN)) + supported |= PHY_MODE_TX_DISABLED; + if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_LOWPOWER_LBN)) + supported |= PHY_MODE_LOW_POWER; + if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_POWEROFF_LBN)) + supported |= PHY_MODE_OFF; + + mode = efx->phy_mode & supported; + + flags = 0; + if (mode & PHY_MODE_TX_DISABLED) + flags |= (1 << MC_CMD_SET_LINK_IN_TXDIS_LBN); + if (mode & PHY_MODE_LOW_POWER) + flags |= (1 << MC_CMD_SET_LINK_IN_LOWPOWER_LBN); + if (mode & PHY_MODE_OFF) + flags |= (1 << MC_CMD_SET_LINK_IN_POWEROFF_LBN); + + return flags; +} + +static u32 mcdi_to_ethtool_media(u32 media) +{ + switch (media) { + case MC_CMD_MEDIA_XAUI: + case MC_CMD_MEDIA_CX4: + case MC_CMD_MEDIA_KX4: + return PORT_OTHER; + + case MC_CMD_MEDIA_XFP: + case MC_CMD_MEDIA_SFP_PLUS: + return PORT_FIBRE; + + case MC_CMD_MEDIA_BASE_T: + return PORT_TP; + + default: + return PORT_OTHER; + } +} + +static void efx_mcdi_phy_decode_link(struct efx_nic *efx, + struct efx_link_state *link_state, + u32 speed, u32 flags, u32 fcntl) +{ + switch (fcntl) { + case MC_CMD_FCNTL_AUTO: + WARN_ON(1); /* This is not a link mode */ + link_state->fc = EFX_FC_AUTO | EFX_FC_TX | EFX_FC_RX; + break; + case MC_CMD_FCNTL_BIDIR: + link_state->fc = EFX_FC_TX | EFX_FC_RX; + break; + case MC_CMD_FCNTL_RESPOND: + link_state->fc = EFX_FC_RX; + break; + default: + WARN_ON(1); + case MC_CMD_FCNTL_OFF: + link_state->fc = 0; + break; + } + + link_state->up = !!(flags & (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN)); + link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN)); + link_state->speed = speed; +} + +static int efx_mcdi_phy_probe(struct efx_nic *efx) +{ + struct efx_mcdi_phy_data *phy_data; + MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); + u32 caps; + int rc; + + /* Initialise and populate phy_data */ + phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL); + if (phy_data == NULL) + return -ENOMEM; + + rc = efx_mcdi_get_phy_cfg(efx, phy_data); + if (rc != 0) + goto fail; + + /* Read initial link advertisement */ + BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); + rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, + outbuf, sizeof(outbuf), NULL); + if (rc) + goto fail; + + /* Fill out nic state */ + efx->phy_data = phy_data; + efx->phy_type = phy_data->type; + + efx->mdio_bus = phy_data->channel; + efx->mdio.prtad = phy_data->port; + efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22); + efx->mdio.mode_support = 0; + if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22)) + efx->mdio.mode_support |= MDIO_SUPPORTS_C22; + if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22)) + efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; + + caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP); + if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN)) + efx->link_advertising = + mcdi_to_ethtool_cap(phy_data->media, caps); + else + phy_data->forced_cap = caps; + + /* Assert that we can map efx -> mcdi loopback modes */ + BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE); + BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA); + BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC); + BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII); + BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS); + BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI); + BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII); + BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII); + BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR); + BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI); + BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR); + BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR); + BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR); + BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR); + BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY); + BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS); + BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS); + BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD); + BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT); + BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS); + BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS); + BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR); + BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR); + BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS); + BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS); + BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR); + BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS); + + rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes); + if (rc != 0) + goto fail; + /* The MC indicates that LOOPBACK_NONE is a valid loopback mode, + * but by convention we don't */ + efx->loopback_modes &= ~(1 << LOOPBACK_NONE); + + /* Set the initial link mode */ + efx_mcdi_phy_decode_link( + efx, &efx->link_state, + MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), + MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), + MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); + + /* Default to Autonegotiated flow control if the PHY supports it */ + efx->wanted_fc = EFX_FC_RX | EFX_FC_TX; + if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) + efx->wanted_fc |= EFX_FC_AUTO; + efx_link_set_wanted_fc(efx, efx->wanted_fc); + + return 0; + +fail: + kfree(phy_data); + return rc; +} + +int efx_mcdi_port_reconfigure(struct efx_nic *efx) +{ + struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; + u32 caps = (efx->link_advertising ? + ethtool_to_mcdi_cap(efx->link_advertising) : + phy_cfg->forced_cap); + + return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), + efx->loopback_mode, 0); +} + +/* Verify that the forced flow control settings (!EFX_FC_AUTO) are + * supported by the link partner. Warn the user if this isn't the case + */ +static void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa) +{ + struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; + u32 rmtadv; + + /* The link partner capabilities are only relevant if the + * link supports flow control autonegotiation */ + if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) + return; + + /* If flow control autoneg is supported and enabled, then fine */ + if (efx->wanted_fc & EFX_FC_AUTO) + return; + + rmtadv = 0; + if (lpa & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) + rmtadv |= ADVERTISED_Pause; + if (lpa & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) + rmtadv |= ADVERTISED_Asym_Pause; + + if ((efx->wanted_fc & EFX_FC_TX) && rmtadv == ADVERTISED_Asym_Pause) + netif_err(efx, link, efx->net_dev, + "warning: link partner doesn't support pause frames"); +} + +static bool efx_mcdi_phy_poll(struct efx_nic *efx) +{ + struct efx_link_state old_state = efx->link_state; + MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); + int rc; + + WARN_ON(!mutex_is_locked(&efx->mac_lock)); + + BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); + + rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, + outbuf, sizeof(outbuf), NULL); + if (rc) { + netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", + __func__, rc); + efx->link_state.up = false; + } else { + efx_mcdi_phy_decode_link( + efx, &efx->link_state, + MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), + MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), + MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); + } + + return !efx_link_state_equal(&efx->link_state, &old_state); +} + +static void efx_mcdi_phy_remove(struct efx_nic *efx) +{ + struct efx_mcdi_phy_data *phy_data = efx->phy_data; + + efx->phy_data = NULL; + kfree(phy_data); +} + +static void efx_mcdi_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) +{ + struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; + MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); + int rc; + + ecmd->supported = + mcdi_to_ethtool_cap(phy_cfg->media, phy_cfg->supported_cap); + ecmd->advertising = efx->link_advertising; + ethtool_cmd_speed_set(ecmd, efx->link_state.speed); + ecmd->duplex = efx->link_state.fd; + ecmd->port = mcdi_to_ethtool_media(phy_cfg->media); + ecmd->phy_address = phy_cfg->port; + ecmd->transceiver = XCVR_INTERNAL; + ecmd->autoneg = !!(efx->link_advertising & ADVERTISED_Autoneg); + ecmd->mdio_support = (efx->mdio.mode_support & + (MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22)); + + BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); + rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, + outbuf, sizeof(outbuf), NULL); + if (rc) { + netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", + __func__, rc); + return; + } + ecmd->lp_advertising = + mcdi_to_ethtool_cap(phy_cfg->media, + MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP)); +} + +static int efx_mcdi_phy_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) +{ + struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; + u32 caps; + int rc; + + if (ecmd->autoneg) { + caps = (ethtool_to_mcdi_cap(ecmd->advertising) | + 1 << MC_CMD_PHY_CAP_AN_LBN); + } else if (ecmd->duplex) { + switch (ethtool_cmd_speed(ecmd)) { + case 10: caps = 1 << MC_CMD_PHY_CAP_10FDX_LBN; break; + case 100: caps = 1 << MC_CMD_PHY_CAP_100FDX_LBN; break; + case 1000: caps = 1 << MC_CMD_PHY_CAP_1000FDX_LBN; break; + case 10000: caps = 1 << MC_CMD_PHY_CAP_10000FDX_LBN; break; + default: return -EINVAL; + } + } else { + switch (ethtool_cmd_speed(ecmd)) { + case 10: caps = 1 << MC_CMD_PHY_CAP_10HDX_LBN; break; + case 100: caps = 1 << MC_CMD_PHY_CAP_100HDX_LBN; break; + case 1000: caps = 1 << MC_CMD_PHY_CAP_1000HDX_LBN; break; + default: return -EINVAL; + } + } + + rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), + efx->loopback_mode, 0); + if (rc) + return rc; + + if (ecmd->autoneg) { + efx_link_set_advertising( + efx, ecmd->advertising | ADVERTISED_Autoneg); + phy_cfg->forced_cap = 0; + } else { + efx_link_set_advertising(efx, 0); + phy_cfg->forced_cap = caps; + } + return 0; +} + +static int efx_mcdi_phy_test_alive(struct efx_nic *efx) +{ + MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_STATE_OUT_LEN); + size_t outlen; + int rc; + + BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN != 0); + + rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_STATE, NULL, 0, + outbuf, sizeof(outbuf), &outlen); + if (rc) + return rc; + + if (outlen < MC_CMD_GET_PHY_STATE_OUT_LEN) + return -EIO; + if (MCDI_DWORD(outbuf, GET_PHY_STATE_OUT_STATE) != MC_CMD_PHY_STATE_OK) + return -EINVAL; + + return 0; +} + +static const char *const mcdi_sft9001_cable_diag_names[] = { + "cable.pairA.length", + "cable.pairB.length", + "cable.pairC.length", + "cable.pairD.length", + "cable.pairA.status", + "cable.pairB.status", + "cable.pairC.status", + "cable.pairD.status", +}; + +static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode, + int *results) +{ + unsigned int retry, i, count = 0; + size_t outlen; + u32 status; + MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN); + MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_SFT9001_LEN); + u8 *ptr; + int rc; + + BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0); + MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_mode); + rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST, + inbuf, MC_CMD_START_BIST_IN_LEN, NULL, 0, NULL); + if (rc) + goto out; + + /* Wait up to 10s for BIST to finish */ + for (retry = 0; retry < 100; ++retry) { + BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0); + rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0, + outbuf, sizeof(outbuf), &outlen); + if (rc) + goto out; + + status = MCDI_DWORD(outbuf, POLL_BIST_OUT_RESULT); + if (status != MC_CMD_POLL_BIST_RUNNING) + goto finished; + + msleep(100); + } + + rc = -ETIMEDOUT; + goto out; + +finished: + results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1; + + /* SFT9001 specific cable diagnostics output */ + if (efx->phy_type == PHY_TYPE_SFT9001B && + (bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT || + bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) { + ptr = MCDI_PTR(outbuf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A); + if (status == MC_CMD_POLL_BIST_PASSED && + outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) { + for (i = 0; i < 8; i++) { + results[count + i] = + EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i], + EFX_DWORD_0); + } + } + count += 8; + } + rc = count; + +out: + return rc; +} + +static int efx_mcdi_phy_run_tests(struct efx_nic *efx, int *results, + unsigned flags) +{ + struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; + u32 mode; + int rc; + + if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { + rc = efx_mcdi_bist(efx, MC_CMD_PHY_BIST, results); + if (rc < 0) + return rc; + + results += rc; + } + + /* If we support both LONG and SHORT, then run each in response to + * break or not. Otherwise, run the one we support */ + mode = 0; + if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN)) { + if ((flags & ETH_TEST_FL_OFFLINE) && + (phy_cfg->flags & + (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) + mode = MC_CMD_PHY_BIST_CABLE_LONG; + else + mode = MC_CMD_PHY_BIST_CABLE_SHORT; + } else if (phy_cfg->flags & + (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN)) + mode = MC_CMD_PHY_BIST_CABLE_LONG; + + if (mode != 0) { + rc = efx_mcdi_bist(efx, mode, results); + if (rc < 0) + return rc; + results += rc; + } + + return 0; +} + +static const char *efx_mcdi_phy_test_name(struct efx_nic *efx, + unsigned int index) +{ + struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; + + if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { + if (index == 0) + return "bist"; + --index; + } + + if (phy_cfg->flags & ((1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN) | + (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) { + if (index == 0) + return "cable"; + --index; + + if (efx->phy_type == PHY_TYPE_SFT9001B) { + if (index < ARRAY_SIZE(mcdi_sft9001_cable_diag_names)) + return mcdi_sft9001_cable_diag_names[index]; + index -= ARRAY_SIZE(mcdi_sft9001_cable_diag_names); + } + } + + return NULL; +} + +#define SFP_PAGE_SIZE 128 +#define SFP_NUM_PAGES 2 +static int efx_mcdi_phy_get_module_eeprom(struct efx_nic *efx, + struct ethtool_eeprom *ee, u8 *data) +{ + MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX); + MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN); + size_t outlen; + int rc; + unsigned int payload_len; + unsigned int space_remaining = ee->len; + unsigned int page; + unsigned int page_off; + unsigned int to_copy; + u8 *user_data = data; + + BUILD_BUG_ON(SFP_PAGE_SIZE * SFP_NUM_PAGES != ETH_MODULE_SFF_8079_LEN); + + page_off = ee->offset % SFP_PAGE_SIZE; + page = ee->offset / SFP_PAGE_SIZE; + + while (space_remaining && (page < SFP_NUM_PAGES)) { + MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page); + + rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_MEDIA_INFO, + inbuf, sizeof(inbuf), + outbuf, sizeof(outbuf), + &outlen); + if (rc) + return rc; + + if (outlen < (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST + + SFP_PAGE_SIZE)) + return -EIO; + + payload_len = MCDI_DWORD(outbuf, + GET_PHY_MEDIA_INFO_OUT_DATALEN); + if (payload_len != SFP_PAGE_SIZE) + return -EIO; + + /* Copy as much as we can into data */ + payload_len -= page_off; + to_copy = (space_remaining < payload_len) ? + space_remaining : payload_len; + + memcpy(user_data, + MCDI_PTR(outbuf, GET_PHY_MEDIA_INFO_OUT_DATA) + page_off, + to_copy); + + space_remaining -= to_copy; + user_data += to_copy; + page_off = 0; + page++; + } + + return 0; +} + +static int efx_mcdi_phy_get_module_info(struct efx_nic *efx, + struct ethtool_modinfo *modinfo) +{ + struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; + + switch (phy_cfg->media) { + case MC_CMD_MEDIA_SFP_PLUS: + modinfo->type = ETH_MODULE_SFF_8079; + modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static const struct efx_phy_operations efx_mcdi_phy_ops = { + .probe = efx_mcdi_phy_probe, + .init = efx_port_dummy_op_int, + .reconfigure = efx_mcdi_port_reconfigure, + .poll = efx_mcdi_phy_poll, + .fini = efx_port_dummy_op_void, + .remove = efx_mcdi_phy_remove, + .get_settings = efx_mcdi_phy_get_settings, + .set_settings = efx_mcdi_phy_set_settings, + .test_alive = efx_mcdi_phy_test_alive, + .run_tests = efx_mcdi_phy_run_tests, + .test_name = efx_mcdi_phy_test_name, + .get_module_eeprom = efx_mcdi_phy_get_module_eeprom, + .get_module_info = efx_mcdi_phy_get_module_info, +}; + +static unsigned int efx_mcdi_event_link_speed[] = { + [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100, + [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000, + [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000, +}; + +void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev) +{ + u32 flags, fcntl, speed, lpa; + + speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED); + EFX_BUG_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed)); + speed = efx_mcdi_event_link_speed[speed]; + + flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS); + fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL); + lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP); + + /* efx->link_state is only modified by efx_mcdi_phy_get_link(), + * which is only run after flushing the event queues. Therefore, it + * is safe to modify the link state outside of the mac_lock here. + */ + efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl); + + efx_mcdi_phy_check_fcntl(efx, lpa); + + efx_link_status_changed(efx); +} + +int efx_mcdi_set_mac(struct efx_nic *efx) +{ + u32 reject, fcntl; + MCDI_DECLARE_BUF(cmdbytes, MC_CMD_SET_MAC_IN_LEN); + + BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN != 0); + + memcpy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR), + efx->net_dev->dev_addr, ETH_ALEN); + + MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU, + EFX_MAX_FRAME_LEN(efx->net_dev->mtu)); + MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0); + + /* The MCDI command provides for controlling accept/reject + * of broadcast packets too, but the driver doesn't currently + * expose this. */ + reject = (efx->promiscuous) ? 0 : + (1 << MC_CMD_SET_MAC_IN_REJECT_UNCST_LBN); + MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_REJECT, reject); + + switch (efx->wanted_fc) { + case EFX_FC_RX | EFX_FC_TX: + fcntl = MC_CMD_FCNTL_BIDIR; + break; + case EFX_FC_RX: + fcntl = MC_CMD_FCNTL_RESPOND; + break; + default: + fcntl = MC_CMD_FCNTL_OFF; + break; + } + if (efx->wanted_fc & EFX_FC_AUTO) + fcntl = MC_CMD_FCNTL_AUTO; + if (efx->fc_disable) + fcntl = MC_CMD_FCNTL_OFF; + + MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl); + + return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes, sizeof(cmdbytes), + NULL, 0, NULL); +} + +bool efx_mcdi_mac_check_fault(struct efx_nic *efx) +{ + MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); + size_t outlength; + int rc; + + BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); + + rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, + outbuf, sizeof(outbuf), &outlength); + if (rc) { + netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", + __func__, rc); + return true; + } + + return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0; +} + +static int efx_mcdi_mac_stats(struct efx_nic *efx, dma_addr_t dma_addr, + u32 dma_len, int enable, int clear) +{ + MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN); + int rc; + efx_dword_t *cmd_ptr; + int period = enable ? 1000 : 0; + + BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0); + + MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, dma_addr); + cmd_ptr = (efx_dword_t *)MCDI_PTR(inbuf, MAC_STATS_IN_CMD); + EFX_POPULATE_DWORD_7(*cmd_ptr, + MC_CMD_MAC_STATS_IN_DMA, !!enable, + MC_CMD_MAC_STATS_IN_CLEAR, clear, + MC_CMD_MAC_STATS_IN_PERIODIC_CHANGE, 1, + MC_CMD_MAC_STATS_IN_PERIODIC_ENABLE, !!enable, + MC_CMD_MAC_STATS_IN_PERIODIC_CLEAR, 0, + MC_CMD_MAC_STATS_IN_PERIODIC_NOEVENT, 1, + MC_CMD_MAC_STATS_IN_PERIOD_MS, period); + MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len); + + rc = efx_mcdi_rpc(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf), + NULL, 0, NULL); + if (rc) + goto fail; + + return 0; + +fail: + netif_err(efx, hw, efx->net_dev, "%s: %s failed rc=%d\n", + __func__, enable ? "enable" : "disable", rc); + return rc; +} + +void efx_mcdi_mac_start_stats(struct efx_nic *efx) +{ + __le64 *dma_stats = efx->stats_buffer.addr; + + dma_stats[MC_CMD_MAC_GENERATION_END] = EFX_MC_STATS_GENERATION_INVALID; + + efx_mcdi_mac_stats(efx, efx->stats_buffer.dma_addr, + MC_CMD_MAC_NSTATS * sizeof(u64), 1, 0); +} + +void efx_mcdi_mac_stop_stats(struct efx_nic *efx) +{ + efx_mcdi_mac_stats(efx, efx->stats_buffer.dma_addr, 0, 0, 0); +} + +int efx_mcdi_port_probe(struct efx_nic *efx) +{ + int rc; + + /* Hook in PHY operations table */ + efx->phy_op = &efx_mcdi_phy_ops; + + /* Set up MDIO structure for PHY */ + efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; + efx->mdio.mdio_read = efx_mcdi_mdio_read; + efx->mdio.mdio_write = efx_mcdi_mdio_write; + + /* Fill out MDIO structure, loopback modes, and initial link state */ + rc = efx->phy_op->probe(efx); + if (rc != 0) + return rc; + + /* Allocate buffer for stats */ + rc = efx_nic_alloc_buffer(efx, &efx->stats_buffer, + MC_CMD_MAC_NSTATS * sizeof(u64)); + if (rc) + return rc; + netif_dbg(efx, probe, efx->net_dev, + "stats buffer at %llx (virt %p phys %llx)\n", + (u64)efx->stats_buffer.dma_addr, + efx->stats_buffer.addr, + (u64)virt_to_phys(efx->stats_buffer.addr)); + + efx_mcdi_mac_stats(efx, efx->stats_buffer.dma_addr, 0, 0, 1); + + return 0; +} + +void efx_mcdi_port_remove(struct efx_nic *efx) +{ + efx->phy_op->remove(efx); + efx_nic_free_buffer(efx, &efx->stats_buffer); +} diff --git a/drivers/net/ethernet/sfc/phy.h b/drivers/net/ethernet/sfc/phy.h index 11d148cd8441..4f6eb8177a6d 100644 --- a/drivers/net/ethernet/sfc/phy.h +++ b/drivers/net/ethernet/sfc/phy.h @@ -47,21 +47,4 @@ extern const struct efx_phy_operations falcon_txc_phy_ops; extern void falcon_txc_set_gpio_dir(struct efx_nic *efx, int pin, int dir); extern void falcon_txc_set_gpio_val(struct efx_nic *efx, int pin, int val); -/**************************************************************************** - * Siena managed PHYs - */ -extern const struct efx_phy_operations efx_mcdi_phy_ops; - -extern int efx_mcdi_mdio_read(struct efx_nic *efx, unsigned int bus, - unsigned int prtad, unsigned int devad, - u16 addr, u16 *value_out, u32 *status_out); -extern int efx_mcdi_mdio_write(struct efx_nic *efx, unsigned int bus, - unsigned int prtad, unsigned int devad, - u16 addr, u16 value, u32 *status_out); -extern void efx_mcdi_phy_decode_link(struct efx_nic *efx, - struct efx_link_state *link_state, - u32 speed, u32 flags, u32 fcntl); -extern int efx_mcdi_phy_reconfigure(struct efx_nic *efx); -extern void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa); - #endif diff --git a/drivers/net/ethernet/sfc/siena.c b/drivers/net/ethernet/sfc/siena.c index 1febedb4987c..b5d5568485d0 100644 --- a/drivers/net/ethernet/sfc/siena.c +++ b/drivers/net/ethernet/sfc/siena.c @@ -51,81 +51,6 @@ static void siena_push_irq_moderation(struct efx_channel *channel) channel->channel); } -static int siena_mdio_write(struct net_device *net_dev, - int prtad, int devad, u16 addr, u16 value) -{ - struct efx_nic *efx = netdev_priv(net_dev); - uint32_t status; - int rc; - - rc = efx_mcdi_mdio_write(efx, efx->mdio_bus, prtad, devad, - addr, value, &status); - if (rc) - return rc; - if (status != MC_CMD_MDIO_STATUS_GOOD) - return -EIO; - - return 0; -} - -static int siena_mdio_read(struct net_device *net_dev, - int prtad, int devad, u16 addr) -{ - struct efx_nic *efx = netdev_priv(net_dev); - uint16_t value; - uint32_t status; - int rc; - - rc = efx_mcdi_mdio_read(efx, efx->mdio_bus, prtad, devad, - addr, &value, &status); - if (rc) - return rc; - if (status != MC_CMD_MDIO_STATUS_GOOD) - return -EIO; - - return (int)value; -} - -/* This call is responsible for hooking in the MAC and PHY operations */ -static int siena_probe_port(struct efx_nic *efx) -{ - int rc; - - /* Hook in PHY operations table */ - efx->phy_op = &efx_mcdi_phy_ops; - - /* Set up MDIO structure for PHY */ - efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; - efx->mdio.mdio_read = siena_mdio_read; - efx->mdio.mdio_write = siena_mdio_write; - - /* Fill out MDIO structure, loopback modes, and initial link state */ - rc = efx->phy_op->probe(efx); - if (rc != 0) - return rc; - - /* Allocate buffer for stats */ - rc = efx_nic_alloc_buffer(efx, &efx->stats_buffer, - MC_CMD_MAC_NSTATS * sizeof(u64)); - if (rc) - return rc; - netif_dbg(efx, probe, efx->net_dev, - "stats buffer at %llx (virt %p phys %llx)\n", - (u64)efx->stats_buffer.dma_addr, - efx->stats_buffer.addr, - (u64)virt_to_phys(efx->stats_buffer.addr)); - - efx_mcdi_mac_stats(efx, efx->stats_buffer.dma_addr, 0, 0, 1); - - return 0; -} - -static void siena_remove_port(struct efx_nic *efx) -{ - efx->phy_op->remove(efx); - efx_nic_free_buffer(efx, &efx->stats_buffer); -} - void siena_prepare_flush(struct efx_nic *efx) { if (efx->fc_disable++ == 0) @@ -447,8 +372,6 @@ static void siena_remove_nic(struct efx_nic *efx) efx->nic_data = NULL; } -#define STATS_GENERATION_INVALID ((__force __le64)(-1)) - static int siena_try_update_nic_stats(struct efx_nic *efx) { __le64 *dma_stats; @@ -459,7 +382,7 @@ static int siena_try_update_nic_stats(struct efx_nic *efx) dma_stats = efx->stats_buffer.addr; generation_end = dma_stats[MC_CMD_MAC_GENERATION_END]; - if (generation_end == STATS_GENERATION_INVALID) + if (generation_end == EFX_MC_STATS_GENERATION_INVALID) return 0; rmb(); @@ -562,21 +485,6 @@ static void siena_update_nic_stats(struct efx_nic *efx) /* Use the old values instead */ } -static void siena_start_nic_stats(struct efx_nic *efx) -{ - __le64 *dma_stats = efx->stats_buffer.addr; - - dma_stats[MC_CMD_MAC_GENERATION_END] = STATS_GENERATION_INVALID; - - efx_mcdi_mac_stats(efx, efx->stats_buffer.dma_addr, - MC_CMD_MAC_NSTATS * sizeof(u64), 1, 0); -} - -static void siena_stop_nic_stats(struct efx_nic *efx) -{ - efx_mcdi_mac_stats(efx, efx->stats_buffer.dma_addr, 0, 0, 0); -} - static int siena_mac_reconfigure(struct efx_nic *efx) { MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_MCAST_HASH_IN_LEN); @@ -691,18 +599,18 @@ const struct efx_nic_type siena_a0_nic_type = { .map_reset_reason = efx_mcdi_map_reset_reason, .map_reset_flags = siena_map_reset_flags, .reset = efx_mcdi_reset, - .probe_port = siena_probe_port, - .remove_port = siena_remove_port, + .probe_port = efx_mcdi_port_probe, + .remove_port = efx_mcdi_port_remove, .prepare_flush = siena_prepare_flush, .finish_flush = siena_finish_flush, .update_stats = siena_update_nic_stats, - .start_stats = siena_start_nic_stats, - .stop_stats = siena_stop_nic_stats, + .start_stats = efx_mcdi_mac_start_stats, + .stop_stats = efx_mcdi_mac_stop_stats, .set_id_led = efx_mcdi_set_id_led, .push_irq_moderation = siena_push_irq_moderation, .reconfigure_mac = siena_mac_reconfigure, .check_mac_fault = efx_mcdi_mac_check_fault, - .reconfigure_port = efx_mcdi_phy_reconfigure, + .reconfigure_port = efx_mcdi_port_reconfigure, .get_wol = siena_get_wol, .set_wol = siena_set_wol, .resume_wol = siena_init_wol, -- cgit v1.2.2