diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/fman/mac.c')
-rw-r--r-- | drivers/net/ethernet/freescale/fman/mac.c | 497 |
1 files changed, 51 insertions, 446 deletions
diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c index 39ae965cd4f6..7b7526fd7da3 100644 --- a/drivers/net/ethernet/freescale/fman/mac.c +++ b/drivers/net/ethernet/freescale/fman/mac.c @@ -1,32 +1,6 @@ -/* Copyright 2008-2015 Freescale Semiconductor, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Freescale Semiconductor nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later +/* + * Copyright 2008 - 2015 Freescale Semiconductor Inc. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -54,20 +28,12 @@ MODULE_LICENSE("Dual BSD/GPL"); MODULE_DESCRIPTION("FSL FMan MAC API based driver"); struct mac_priv_s { - struct device *dev; - void __iomem *vaddr; u8 cell_index; struct fman *fman; - struct device_node *internal_phy_node; /* List of multicast addresses */ struct list_head mc_addr_list; struct platform_device *eth_dev; - struct fixed_phy_status *fixed_link; u16 speed; - u16 max_speed; - - int (*enable)(struct fman_mac *mac_dev, enum comm_mode mode); - int (*disable)(struct fman_mac *mac_dev, enum comm_mode mode); }; struct mac_address { @@ -75,222 +41,21 @@ struct mac_address { struct list_head list; }; -static void mac_exception(void *handle, enum fman_mac_exceptions ex) +static void mac_exception(struct mac_device *mac_dev, + enum fman_mac_exceptions ex) { - struct mac_device *mac_dev; - struct mac_priv_s *priv; - - mac_dev = handle; - priv = mac_dev->priv; - if (ex == FM_MAC_EX_10G_RX_FIFO_OVFL) { /* don't flag RX FIFO after the first */ mac_dev->set_exception(mac_dev->fman_mac, FM_MAC_EX_10G_RX_FIFO_OVFL, false); - dev_err(priv->dev, "10G MAC got RX FIFO Error = %x\n", ex); + dev_err(mac_dev->dev, "10G MAC got RX FIFO Error = %x\n", ex); } - dev_dbg(priv->dev, "%s:%s() -> %d\n", KBUILD_BASENAME ".c", + dev_dbg(mac_dev->dev, "%s:%s() -> %d\n", KBUILD_BASENAME ".c", __func__, ex); } -static int set_fman_mac_params(struct mac_device *mac_dev, - struct fman_mac_params *params) -{ - struct mac_priv_s *priv = mac_dev->priv; - - params->base_addr = (typeof(params->base_addr)) - devm_ioremap(priv->dev, mac_dev->res->start, - resource_size(mac_dev->res)); - if (!params->base_addr) - return -ENOMEM; - - memcpy(¶ms->addr, mac_dev->addr, sizeof(mac_dev->addr)); - params->max_speed = priv->max_speed; - params->phy_if = mac_dev->phy_if; - params->basex_if = false; - params->mac_id = priv->cell_index; - params->fm = (void *)priv->fman; - params->exception_cb = mac_exception; - params->event_cb = mac_exception; - params->dev_id = mac_dev; - params->internal_phy_node = priv->internal_phy_node; - - return 0; -} - -static int tgec_initialization(struct mac_device *mac_dev) -{ - int err; - struct mac_priv_s *priv; - struct fman_mac_params params; - u32 version; - - priv = mac_dev->priv; - - err = set_fman_mac_params(mac_dev, ¶ms); - if (err) - goto _return; - - mac_dev->fman_mac = tgec_config(¶ms); - if (!mac_dev->fman_mac) { - err = -EINVAL; - goto _return; - } - - err = tgec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm()); - if (err < 0) - goto _return_fm_mac_free; - - err = tgec_init(mac_dev->fman_mac); - if (err < 0) - goto _return_fm_mac_free; - - /* For 10G MAC, disable Tx ECC exception */ - err = mac_dev->set_exception(mac_dev->fman_mac, - FM_MAC_EX_10G_TX_ECC_ER, false); - if (err < 0) - goto _return_fm_mac_free; - - err = tgec_get_version(mac_dev->fman_mac, &version); - if (err < 0) - goto _return_fm_mac_free; - - dev_info(priv->dev, "FMan XGEC version: 0x%08x\n", version); - - goto _return; - -_return_fm_mac_free: - tgec_free(mac_dev->fman_mac); - -_return: - return err; -} - -static int dtsec_initialization(struct mac_device *mac_dev) -{ - int err; - struct mac_priv_s *priv; - struct fman_mac_params params; - u32 version; - - priv = mac_dev->priv; - - err = set_fman_mac_params(mac_dev, ¶ms); - if (err) - goto _return; - - mac_dev->fman_mac = dtsec_config(¶ms); - if (!mac_dev->fman_mac) { - err = -EINVAL; - goto _return; - } - - err = dtsec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm()); - if (err < 0) - goto _return_fm_mac_free; - - err = dtsec_cfg_pad_and_crc(mac_dev->fman_mac, true); - if (err < 0) - goto _return_fm_mac_free; - - err = dtsec_init(mac_dev->fman_mac); - if (err < 0) - goto _return_fm_mac_free; - - /* For 1G MAC, disable by default the MIB counters overflow interrupt */ - err = mac_dev->set_exception(mac_dev->fman_mac, - FM_MAC_EX_1G_RX_MIB_CNT_OVFL, false); - if (err < 0) - goto _return_fm_mac_free; - - err = dtsec_get_version(mac_dev->fman_mac, &version); - if (err < 0) - goto _return_fm_mac_free; - - dev_info(priv->dev, "FMan dTSEC version: 0x%08x\n", version); - - goto _return; - -_return_fm_mac_free: - dtsec_free(mac_dev->fman_mac); - -_return: - return err; -} - -static int memac_initialization(struct mac_device *mac_dev) -{ - int err; - struct mac_priv_s *priv; - struct fman_mac_params params; - - priv = mac_dev->priv; - - err = set_fman_mac_params(mac_dev, ¶ms); - if (err) - goto _return; - - if (priv->max_speed == SPEED_10000) - params.phy_if = PHY_INTERFACE_MODE_XGMII; - - mac_dev->fman_mac = memac_config(¶ms); - if (!mac_dev->fman_mac) { - err = -EINVAL; - goto _return; - } - - err = memac_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm()); - if (err < 0) - goto _return_fm_mac_free; - - err = memac_cfg_reset_on_init(mac_dev->fman_mac, true); - if (err < 0) - goto _return_fm_mac_free; - - err = memac_cfg_fixed_link(mac_dev->fman_mac, priv->fixed_link); - if (err < 0) - goto _return_fm_mac_free; - - err = memac_init(mac_dev->fman_mac); - if (err < 0) - goto _return_fm_mac_free; - - dev_info(priv->dev, "FMan MEMAC\n"); - - goto _return; - -_return_fm_mac_free: - memac_free(mac_dev->fman_mac); - -_return: - return err; -} - -static int start(struct mac_device *mac_dev) -{ - int err; - struct phy_device *phy_dev = mac_dev->phy_dev; - struct mac_priv_s *priv = mac_dev->priv; - - err = priv->enable(mac_dev->fman_mac, COMM_MODE_RX_AND_TX); - if (!err && phy_dev) - phy_start(phy_dev); - - return err; -} - -static int stop(struct mac_device *mac_dev) -{ - struct mac_priv_s *priv = mac_dev->priv; - - if (mac_dev->phy_dev) - phy_stop(mac_dev->phy_dev); - - return priv->disable(mac_dev->fman_mac, COMM_MODE_RX_AND_TX); -} - -static int set_multi(struct net_device *net_dev, struct mac_device *mac_dev) +int fman_set_multi(struct net_device *net_dev, struct mac_device *mac_dev) { struct mac_priv_s *priv; struct mac_address *old_addr, *tmp; @@ -424,109 +189,6 @@ void fman_get_pause_cfg(struct mac_device *mac_dev, bool *rx_pause, } EXPORT_SYMBOL(fman_get_pause_cfg); -static void adjust_link_void(struct mac_device *mac_dev) -{ -} - -static void adjust_link_dtsec(struct mac_device *mac_dev) -{ - struct phy_device *phy_dev = mac_dev->phy_dev; - struct fman_mac *fman_mac; - bool rx_pause, tx_pause; - int err; - - fman_mac = mac_dev->fman_mac; - if (!phy_dev->link) { - dtsec_restart_autoneg(fman_mac); - - return; - } - - dtsec_adjust_link(fman_mac, phy_dev->speed); - fman_get_pause_cfg(mac_dev, &rx_pause, &tx_pause); - err = fman_set_mac_active_pause(mac_dev, rx_pause, tx_pause); - if (err < 0) - dev_err(mac_dev->priv->dev, "fman_set_mac_active_pause() = %d\n", - err); -} - -static void adjust_link_memac(struct mac_device *mac_dev) -{ - struct phy_device *phy_dev = mac_dev->phy_dev; - struct fman_mac *fman_mac; - bool rx_pause, tx_pause; - int err; - - fman_mac = mac_dev->fman_mac; - memac_adjust_link(fman_mac, phy_dev->speed); - - fman_get_pause_cfg(mac_dev, &rx_pause, &tx_pause); - err = fman_set_mac_active_pause(mac_dev, rx_pause, tx_pause); - if (err < 0) - dev_err(mac_dev->priv->dev, "fman_set_mac_active_pause() = %d\n", - err); -} - -static void setup_dtsec(struct mac_device *mac_dev) -{ - mac_dev->init = dtsec_initialization; - mac_dev->set_promisc = dtsec_set_promiscuous; - mac_dev->change_addr = dtsec_modify_mac_address; - mac_dev->add_hash_mac_addr = dtsec_add_hash_mac_address; - mac_dev->remove_hash_mac_addr = dtsec_del_hash_mac_address; - mac_dev->set_tx_pause = dtsec_set_tx_pause_frames; - mac_dev->set_rx_pause = dtsec_accept_rx_pause_frames; - mac_dev->set_exception = dtsec_set_exception; - mac_dev->set_allmulti = dtsec_set_allmulti; - mac_dev->set_tstamp = dtsec_set_tstamp; - mac_dev->set_multi = set_multi; - mac_dev->start = start; - mac_dev->stop = stop; - mac_dev->adjust_link = adjust_link_dtsec; - mac_dev->priv->enable = dtsec_enable; - mac_dev->priv->disable = dtsec_disable; -} - -static void setup_tgec(struct mac_device *mac_dev) -{ - mac_dev->init = tgec_initialization; - mac_dev->set_promisc = tgec_set_promiscuous; - mac_dev->change_addr = tgec_modify_mac_address; - mac_dev->add_hash_mac_addr = tgec_add_hash_mac_address; - mac_dev->remove_hash_mac_addr = tgec_del_hash_mac_address; - mac_dev->set_tx_pause = tgec_set_tx_pause_frames; - mac_dev->set_rx_pause = tgec_accept_rx_pause_frames; - mac_dev->set_exception = tgec_set_exception; - mac_dev->set_allmulti = tgec_set_allmulti; - mac_dev->set_tstamp = tgec_set_tstamp; - mac_dev->set_multi = set_multi; - mac_dev->start = start; - mac_dev->stop = stop; - mac_dev->adjust_link = adjust_link_void; - mac_dev->priv->enable = tgec_enable; - mac_dev->priv->disable = tgec_disable; -} - -static void setup_memac(struct mac_device *mac_dev) -{ - mac_dev->init = memac_initialization; - mac_dev->set_promisc = memac_set_promiscuous; - mac_dev->change_addr = memac_modify_mac_address; - mac_dev->add_hash_mac_addr = memac_add_hash_mac_address; - mac_dev->remove_hash_mac_addr = memac_del_hash_mac_address; - mac_dev->set_tx_pause = memac_set_tx_pause_frames; - mac_dev->set_rx_pause = memac_accept_rx_pause_frames; - mac_dev->set_exception = memac_set_exception; - mac_dev->set_allmulti = memac_set_allmulti; - mac_dev->set_tstamp = memac_set_tstamp; - mac_dev->set_multi = set_multi; - mac_dev->start = start; - mac_dev->stop = stop; - mac_dev->adjust_link = adjust_link_memac; - mac_dev->priv->enable = memac_enable; - mac_dev->priv->disable = memac_disable; -} - #define DTSEC_SUPPORTED \ (SUPPORTED_10baseT_Half \ | SUPPORTED_10baseT_Full \ @@ -577,7 +239,7 @@ static struct platform_device *dpaa_eth_add_device(int fman_id, goto no_mem; } - pdev->dev.parent = priv->dev; + pdev->dev.parent = mac_dev->dev; ret = platform_device_add_data(pdev, &data, sizeof(data)); if (ret) @@ -601,9 +263,9 @@ no_mem: } static const struct of_device_id mac_match[] = { - { .compatible = "fsl,fman-dtsec" }, - { .compatible = "fsl,fman-xgec" }, - { .compatible = "fsl,fman-memac" }, + { .compatible = "fsl,fman-dtsec", .data = dtsec_initialization }, + { .compatible = "fsl,fman-xgec", .data = tgec_initialization }, + { .compatible = "fsl,fman-memac", .data = memac_initialization }, {} }; MODULE_DEVICE_TABLE(of, mac_match); @@ -611,50 +273,33 @@ MODULE_DEVICE_TABLE(of, mac_match); static int mac_probe(struct platform_device *_of_dev) { int err, i, nph; + int (*init)(struct mac_device *mac_dev, struct device_node *mac_node, + struct fman_mac_params *params); struct device *dev; struct device_node *mac_node, *dev_node; struct mac_device *mac_dev; struct platform_device *of_dev; - struct resource res; + struct resource *res; struct mac_priv_s *priv; + struct fman_mac_params params; u32 val; u8 fman_id; phy_interface_t phy_if; dev = &_of_dev->dev; mac_node = dev->of_node; + init = of_device_get_match_data(dev); mac_dev = devm_kzalloc(dev, sizeof(*mac_dev), GFP_KERNEL); - if (!mac_dev) { - err = -ENOMEM; - goto _return; - } + if (!mac_dev) + return -ENOMEM; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); - if (!priv) { - err = -ENOMEM; - goto _return; - } + if (!priv) + return -ENOMEM; /* Save private information */ mac_dev->priv = priv; - priv->dev = dev; - - if (of_device_is_compatible(mac_node, "fsl,fman-dtsec")) { - setup_dtsec(mac_dev); - priv->internal_phy_node = of_parse_phandle(mac_node, - "tbi-handle", 0); - } else if (of_device_is_compatible(mac_node, "fsl,fman-xgec")) { - setup_tgec(mac_dev); - } else if (of_device_is_compatible(mac_node, "fsl,fman-memac")) { - setup_memac(mac_dev); - priv->internal_phy_node = of_parse_phandle(mac_node, - "pcsphy-handle", 0); - } else { - dev_err(dev, "MAC node (%pOF) contains unsupported MAC\n", - mac_node); - err = -EINVAL; - goto _return; - } + mac_dev->dev = dev; INIT_LIST_HEAD(&priv->mc_addr_list); @@ -663,8 +308,7 @@ static int mac_probe(struct platform_device *_of_dev) if (!dev_node) { dev_err(dev, "of_get_parent(%pOF) failed\n", mac_node); - err = -EINVAL; - goto _return_of_get_parent; + return -EINVAL; } of_dev = of_find_device_by_node(dev_node); @@ -694,42 +338,33 @@ static int mac_probe(struct platform_device *_of_dev) of_node_put(dev_node); /* Get the address of the memory mapped registers */ - err = of_address_to_resource(mac_node, 0, &res); - if (err < 0) { - dev_err(dev, "of_address_to_resource(%pOF) = %d\n", - mac_node, err); - goto _return_of_get_parent; + res = platform_get_mem_or_io(_of_dev, 0); + if (!res) { + dev_err(dev, "could not get registers\n"); + return -EINVAL; } - mac_dev->res = __devm_request_region(dev, - fman_get_mem_region(priv->fman), - res.start, resource_size(&res), - "mac"); - if (!mac_dev->res) { - dev_err(dev, "__devm_request_mem_region(mac) failed\n"); - err = -EBUSY; - goto _return_of_get_parent; + err = devm_request_resource(dev, fman_get_mem_region(priv->fman), res); + if (err) { + dev_err_probe(dev, err, "could not request resource\n"); + return err; } - priv->vaddr = devm_ioremap(dev, mac_dev->res->start, - resource_size(mac_dev->res)); - if (!priv->vaddr) { + mac_dev->vaddr = devm_ioremap(dev, res->start, resource_size(res)); + if (!mac_dev->vaddr) { dev_err(dev, "devm_ioremap() failed\n"); - err = -EIO; - goto _return_of_get_parent; + return -EIO; } + mac_dev->vaddr_end = mac_dev->vaddr + resource_size(res); - if (!of_device_is_available(mac_node)) { - err = -ENODEV; - goto _return_of_get_parent; - } + if (!of_device_is_available(mac_node)) + return -ENODEV; /* Get the cell-index */ err = of_property_read_u32(mac_node, "cell-index", &val); if (err) { dev_err(dev, "failed to read cell-index for %pOF\n", mac_node); - err = -EINVAL; - goto _return_of_get_parent; + return -EINVAL; } priv->cell_index = (u8)val; @@ -743,15 +378,13 @@ static int mac_probe(struct platform_device *_of_dev) if (unlikely(nph < 0)) { dev_err(dev, "of_count_phandle_with_args(%pOF, fsl,fman-ports) failed\n", mac_node); - err = nph; - goto _return_of_get_parent; + return nph; } if (nph != ARRAY_SIZE(mac_dev->port)) { dev_err(dev, "Not supported number of fman-ports handles of mac node %pOF from device tree\n", mac_node); - err = -EINVAL; - goto _return_of_get_parent; + return -EINVAL; } for (i = 0; i < ARRAY_SIZE(mac_dev->port); i++) { @@ -760,8 +393,7 @@ static int mac_probe(struct platform_device *_of_dev) if (!dev_node) { dev_err(dev, "of_parse_phandle(%pOF, fsl,fman-ports) failed\n", mac_node); - err = -EINVAL; - goto _return_of_node_put; + return -EINVAL; } of_dev = of_find_device_by_node(dev_node); @@ -793,7 +425,7 @@ static int mac_probe(struct platform_device *_of_dev) mac_dev->phy_if = phy_if; priv->speed = phy2speed[mac_dev->phy_if]; - priv->max_speed = priv->speed; + params.max_speed = priv->speed; mac_dev->if_support = DTSEC_SUPPORTED; /* We don't support half-duplex in SGMII mode */ if (mac_dev->phy_if == PHY_INTERFACE_MODE_SGMII) @@ -801,7 +433,7 @@ static int mac_probe(struct platform_device *_of_dev) SUPPORTED_100baseT_Half); /* Gigabit support (no half-duplex) */ - if (priv->max_speed == 1000) + if (params.max_speed == 1000) mac_dev->if_support |= SUPPORTED_1000baseT_Full; /* The 10G interface only supports one mode */ @@ -810,42 +442,18 @@ static int mac_probe(struct platform_device *_of_dev) /* Get the rest of the PHY information */ mac_dev->phy_node = of_parse_phandle(mac_node, "phy-handle", 0); - if (!mac_dev->phy_node && of_phy_is_fixed_link(mac_node)) { - struct phy_device *phy; - - err = of_phy_register_fixed_link(mac_node); - if (err) - goto _return_of_get_parent; - - priv->fixed_link = kzalloc(sizeof(*priv->fixed_link), - GFP_KERNEL); - if (!priv->fixed_link) { - err = -ENOMEM; - goto _return_of_get_parent; - } - - mac_dev->phy_node = of_node_get(mac_node); - phy = of_phy_find_device(mac_dev->phy_node); - if (!phy) { - err = -EINVAL; - of_node_put(mac_dev->phy_node); - goto _return_of_get_parent; - } - priv->fixed_link->link = phy->link; - priv->fixed_link->speed = phy->speed; - priv->fixed_link->duplex = phy->duplex; - priv->fixed_link->pause = phy->pause; - priv->fixed_link->asym_pause = phy->asym_pause; + params.basex_if = false; + params.mac_id = priv->cell_index; + params.fm = (void *)priv->fman; + params.exception_cb = mac_exception; + params.event_cb = mac_exception; - put_device(&phy->mdio.dev); - } - - err = mac_dev->init(mac_dev); + err = init(mac_dev, mac_node, ¶ms); if (err < 0) { dev_err(dev, "mac_dev->init() = %d\n", err); of_node_put(mac_dev->phy_node); - goto _return_of_get_parent; + return err; } /* pause frame autonegotiation enabled */ @@ -872,13 +480,10 @@ static int mac_probe(struct platform_device *_of_dev) priv->eth_dev = NULL; } - goto _return; + return err; _return_of_node_put: of_node_put(dev_node); -_return_of_get_parent: - kfree(priv->fixed_link); -_return: return err; } |