From 01cd452846c98609dd3efbee0deea050e6706f02 Mon Sep 17 00:00:00 2001 From: Eilon Greenstein Date: Wed, 12 Aug 2009 08:23:08 +0000 Subject: [PATCH] bnx2x: MDC/MDIO CL45 IOCTLs As suggested by Ben Hutchings , using the MDC/MDIO IOCTL Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/Kconfig | 1 + drivers/net/bnx2x.h | 3 + drivers/net/bnx2x_main.c | 121 +++++++++++++++++++++++++++------------ 3 files changed, 88 insertions(+), 37 deletions(-) diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 9948fa23222..29935a9fb1a 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2722,6 +2722,7 @@ config BNX2X select FW_LOADER select ZLIB_INFLATE select LIBCRC32C + select MDIO help This driver supports Broadcom NetXtremeII 10 gigabit Ethernet cards. To compile this driver as a module, choose M here: the module diff --git a/drivers/net/bnx2x.h b/drivers/net/bnx2x.h index 5864ae2faab..903c89d8518 100644 --- a/drivers/net/bnx2x.h +++ b/drivers/net/bnx2x.h @@ -30,6 +30,8 @@ #define BNX2X_NEW_NAPI + +#include #include "bnx2x_reg.h" #include "bnx2x_fw_defs.h" #include "bnx2x_hsi.h" @@ -895,6 +897,7 @@ struct bnx2x { struct link_params link_params; struct link_vars link_vars; + struct mdio_if_info mdio; struct bnx2x_common common; struct bnx2x_port port; diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c index a695e7f0647..145866764d4 100644 --- a/drivers/net/bnx2x_main.c +++ b/drivers/net/bnx2x_main.c @@ -8331,6 +8331,7 @@ static void __devinit bnx2x_get_port_hwinfo(struct bnx2x *bp) u32 val, val2; u32 config; u16 i; + u32 ext_phy_type; bp->link_params.bp = bp; bp->link_params.port = port; @@ -8390,6 +8391,21 @@ static void __devinit bnx2x_get_port_hwinfo(struct bnx2x *bp) bnx2x_link_settings_requested(bp); + /* + * If connected directly, work with the internal PHY, otherwise, work + * with the external PHY + */ + ext_phy_type = XGXS_EXT_PHY_TYPE(bp->link_params.ext_phy_config); + if (ext_phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) + bp->mdio.prtad = bp->link_params.phy_addr; + + else if ((ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE) && + (ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN)) + bp->mdio.prtad = + (bp->link_params.ext_phy_config & + PORT_HW_CFG_XGXS_EXT_PHY_ADDR_MASK) >> + PORT_HW_CFG_XGXS_EXT_PHY_ADDR_SHIFT; + val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_upper); val = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_lower); bp->dev->dev_addr[0] = (u8)(val2 >> 8 & 0xff); @@ -8614,7 +8630,7 @@ static int bnx2x_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) } else cmd->port = PORT_TP; - cmd->phy_address = bp->port.phy_addr; + cmd->phy_address = bp->mdio.prtad; cmd->transceiver = XCVR_INTERNAL; if (bp->link_params.req_line_speed == SPEED_AUTO_NEG) @@ -11149,54 +11165,77 @@ static int bnx2x_change_mac_addr(struct net_device *dev, void *p) } /* called with rtnl_lock */ -static int bnx2x_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int bnx2x_mdio_read(struct net_device *netdev, int prtad, + int devad, u16 addr) { - struct mii_ioctl_data *data = if_mii(ifr); - struct bnx2x *bp = netdev_priv(dev); - int port = BP_PORT(bp); - int err; + struct bnx2x *bp = netdev_priv(netdev); + u16 value; + int rc; + u32 phy_type = XGXS_EXT_PHY_TYPE(bp->link_params.ext_phy_config); - switch (cmd) { - case SIOCGMIIPHY: - data->phy_id = bp->port.phy_addr; + DP(NETIF_MSG_LINK, "mdio_read: prtad 0x%x, devad 0x%x, addr 0x%x\n", + prtad, devad, addr); - /* fallthrough */ + if (prtad != bp->mdio.prtad) { + DP(NETIF_MSG_LINK, "prtad missmatch (cmd:0x%x != bp:0x%x)\n", + prtad, bp->mdio.prtad); + return -EINVAL; + } + + /* The HW expects different devad if CL22 is used */ + devad = (devad == MDIO_DEVAD_NONE) ? DEFAULT_PHY_DEV_ADDR : devad; - case SIOCGMIIREG: { - u16 mii_regval; + bnx2x_acquire_phy_lock(bp); + rc = bnx2x_cl45_read(bp, BP_PORT(bp), phy_type, prtad, + devad, addr, &value); + bnx2x_release_phy_lock(bp); + DP(NETIF_MSG_LINK, "mdio_read_val 0x%x rc = 0x%x\n", value, rc); - if (!netif_running(dev)) - return -EAGAIN; + if (!rc) + rc = value; + return rc; +} - mutex_lock(&bp->port.phy_mutex); - err = bnx2x_cl45_read(bp, port, 0, bp->port.phy_addr, - DEFAULT_PHY_DEV_ADDR, - (data->reg_num & 0x1f), &mii_regval); - data->val_out = mii_regval; - mutex_unlock(&bp->port.phy_mutex); - return err; +/* called with rtnl_lock */ +static int bnx2x_mdio_write(struct net_device *netdev, int prtad, int devad, + u16 addr, u16 value) +{ + struct bnx2x *bp = netdev_priv(netdev); + u32 ext_phy_type = XGXS_EXT_PHY_TYPE(bp->link_params.ext_phy_config); + int rc; + + DP(NETIF_MSG_LINK, "mdio_write: prtad 0x%x, devad 0x%x, addr 0x%x," + " value 0x%x\n", prtad, devad, addr, value); + + if (prtad != bp->mdio.prtad) { + DP(NETIF_MSG_LINK, "prtad missmatch (cmd:0x%x != bp:0x%x)\n", + prtad, bp->mdio.prtad); + return -EINVAL; } - case SIOCSMIIREG: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; + /* The HW expects different devad if CL22 is used */ + devad = (devad == MDIO_DEVAD_NONE) ? DEFAULT_PHY_DEV_ADDR : devad; - if (!netif_running(dev)) - return -EAGAIN; + bnx2x_acquire_phy_lock(bp); + rc = bnx2x_cl45_write(bp, BP_PORT(bp), ext_phy_type, prtad, + devad, addr, value); + bnx2x_release_phy_lock(bp); + return rc; +} - mutex_lock(&bp->port.phy_mutex); - err = bnx2x_cl45_write(bp, port, 0, bp->port.phy_addr, - DEFAULT_PHY_DEV_ADDR, - (data->reg_num & 0x1f), data->val_in); - mutex_unlock(&bp->port.phy_mutex); - return err; +/* called with rtnl_lock */ +static int bnx2x_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct bnx2x *bp = netdev_priv(dev); + struct mii_ioctl_data *mdio = if_mii(ifr); - default: - /* do nothing */ - break; - } + DP(NETIF_MSG_LINK, "ioctl: phy id 0x%x, reg 0x%x, val_in 0x%x\n", + mdio->phy_id, mdio->reg_num, mdio->val_in); - return -EOPNOTSUPP; + if (!netif_running(dev)) + return -EAGAIN; + + return mdio_mii_ioctl(&bp->mdio, mdio, cmd); } /* called with rtnl_lock */ @@ -11420,6 +11459,14 @@ static int __devinit bnx2x_init_dev(struct pci_dev *pdev, dev->vlan_features |= NETIF_F_TSO6; #endif + /* get_port_hwinfo() will set prtad and mmds properly */ + bp->mdio.prtad = MDIO_PRTAD_NONE; + bp->mdio.mmds = 0; + bp->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; + bp->mdio.dev = dev; + bp->mdio.mdio_read = bnx2x_mdio_read; + bp->mdio.mdio_write = bnx2x_mdio_write; + return 0; err_out_unmap: -- 2.46.0