mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 15:46:39 +07:00
908a7a16b8
When the napi api was changed to separate its 1:1 binding to the net_device struct, the netif_rx_[prep|schedule|complete] api failed to remove the now vestigual net_device structure parameter. This patch cleans up that api by properly removing it.. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
4180 lines
106 KiB
C
4180 lines
106 KiB
C
/*
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* New driver for Marvell Yukon chipset and SysKonnect Gigabit
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* Ethernet adapters. Based on earlier sk98lin, e100 and
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* FreeBSD if_sk drivers.
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*
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* This driver intentionally does not support all the features
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* of the original driver such as link fail-over and link management because
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* those should be done at higher levels.
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*
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* Copyright (C) 2004, 2005 Stephen Hemminger <shemminger@osdl.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/in.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/ethtool.h>
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#include <linux/pci.h>
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#include <linux/if_vlan.h>
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#include <linux/ip.h>
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#include <linux/delay.h>
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#include <linux/crc32.h>
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#include <linux/dma-mapping.h>
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include <linux/mii.h>
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#include <asm/irq.h>
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#include "skge.h"
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#define DRV_NAME "skge"
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#define DRV_VERSION "1.13"
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#define PFX DRV_NAME " "
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#define DEFAULT_TX_RING_SIZE 128
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#define DEFAULT_RX_RING_SIZE 512
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#define MAX_TX_RING_SIZE 1024
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#define TX_LOW_WATER (MAX_SKB_FRAGS + 1)
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#define MAX_RX_RING_SIZE 4096
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#define RX_COPY_THRESHOLD 128
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#define RX_BUF_SIZE 1536
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#define PHY_RETRIES 1000
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#define ETH_JUMBO_MTU 9000
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#define TX_WATCHDOG (5 * HZ)
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#define NAPI_WEIGHT 64
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#define BLINK_MS 250
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#define LINK_HZ HZ
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#define SKGE_EEPROM_MAGIC 0x9933aabb
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MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver");
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MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(DRV_VERSION);
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static const u32 default_msg
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= NETIF_MSG_DRV| NETIF_MSG_PROBE| NETIF_MSG_LINK
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| NETIF_MSG_IFUP| NETIF_MSG_IFDOWN;
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static int debug = -1; /* defaults above */
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module_param(debug, int, 0);
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MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
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static const struct pci_device_id skge_id_table[] = {
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{ PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940) },
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{ PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940B) },
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{ PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE) },
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{ PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU) },
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{ PCI_DEVICE(PCI_VENDOR_ID_DLINK, PCI_DEVICE_ID_DLINK_DGE510T) },
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{ PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b01) }, /* DGE-530T */
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{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) },
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{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */
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{ PCI_DEVICE(PCI_VENDOR_ID_CNET, PCI_DEVICE_ID_CNET_GIGACARD) },
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{ PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1064) },
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{ PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015 },
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{ 0 }
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};
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MODULE_DEVICE_TABLE(pci, skge_id_table);
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static int skge_up(struct net_device *dev);
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static int skge_down(struct net_device *dev);
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static void skge_phy_reset(struct skge_port *skge);
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static void skge_tx_clean(struct net_device *dev);
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static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
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static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
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static void genesis_get_stats(struct skge_port *skge, u64 *data);
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static void yukon_get_stats(struct skge_port *skge, u64 *data);
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static void yukon_init(struct skge_hw *hw, int port);
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static void genesis_mac_init(struct skge_hw *hw, int port);
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static void genesis_link_up(struct skge_port *skge);
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static void skge_set_multicast(struct net_device *dev);
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/* Avoid conditionals by using array */
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static const int txqaddr[] = { Q_XA1, Q_XA2 };
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static const int rxqaddr[] = { Q_R1, Q_R2 };
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static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F };
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static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F };
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static const u32 napimask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F };
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static const u32 portmask[] = { IS_PORT_1, IS_PORT_2 };
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static int skge_get_regs_len(struct net_device *dev)
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{
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return 0x4000;
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}
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/*
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* Returns copy of whole control register region
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* Note: skip RAM address register because accessing it will
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* cause bus hangs!
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*/
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static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs,
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void *p)
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{
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const struct skge_port *skge = netdev_priv(dev);
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const void __iomem *io = skge->hw->regs;
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regs->version = 1;
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memset(p, 0, regs->len);
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memcpy_fromio(p, io, B3_RAM_ADDR);
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memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1,
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regs->len - B3_RI_WTO_R1);
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}
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/* Wake on Lan only supported on Yukon chips with rev 1 or above */
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static u32 wol_supported(const struct skge_hw *hw)
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{
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if (hw->chip_id == CHIP_ID_GENESIS)
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return 0;
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if (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
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return 0;
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return WAKE_MAGIC | WAKE_PHY;
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}
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static void skge_wol_init(struct skge_port *skge)
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{
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struct skge_hw *hw = skge->hw;
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int port = skge->port;
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u16 ctrl;
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skge_write16(hw, B0_CTST, CS_RST_CLR);
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skge_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR);
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/* Turn on Vaux */
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skge_write8(hw, B0_POWER_CTRL,
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PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_ON | PC_VCC_OFF);
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/* WA code for COMA mode -- clear PHY reset */
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if (hw->chip_id == CHIP_ID_YUKON_LITE &&
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hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
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u32 reg = skge_read32(hw, B2_GP_IO);
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reg |= GP_DIR_9;
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reg &= ~GP_IO_9;
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skge_write32(hw, B2_GP_IO, reg);
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}
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skge_write32(hw, SK_REG(port, GPHY_CTRL),
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GPC_DIS_SLEEP |
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GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 |
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GPC_ANEG_1 | GPC_RST_SET);
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skge_write32(hw, SK_REG(port, GPHY_CTRL),
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GPC_DIS_SLEEP |
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GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 |
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GPC_ANEG_1 | GPC_RST_CLR);
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skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
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/* Force to 10/100 skge_reset will re-enable on resume */
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gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
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PHY_AN_100FULL | PHY_AN_100HALF |
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PHY_AN_10FULL | PHY_AN_10HALF| PHY_AN_CSMA);
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/* no 1000 HD/FD */
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gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, 0);
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gm_phy_write(hw, port, PHY_MARV_CTRL,
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PHY_CT_RESET | PHY_CT_SPS_LSB | PHY_CT_ANE |
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PHY_CT_RE_CFG | PHY_CT_DUP_MD);
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/* Set GMAC to no flow control and auto update for speed/duplex */
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gma_write16(hw, port, GM_GP_CTRL,
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GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA|
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GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS);
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/* Set WOL address */
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memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR),
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skge->netdev->dev_addr, ETH_ALEN);
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/* Turn on appropriate WOL control bits */
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skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT);
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ctrl = 0;
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if (skge->wol & WAKE_PHY)
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ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT;
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else
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ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT;
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if (skge->wol & WAKE_MAGIC)
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ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT;
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else
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ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;;
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ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT;
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skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl);
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/* block receiver */
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skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
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}
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static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
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{
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struct skge_port *skge = netdev_priv(dev);
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wol->supported = wol_supported(skge->hw);
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wol->wolopts = skge->wol;
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}
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static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
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{
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struct skge_port *skge = netdev_priv(dev);
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struct skge_hw *hw = skge->hw;
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if ((wol->wolopts & ~wol_supported(hw))
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|| !device_can_wakeup(&hw->pdev->dev))
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return -EOPNOTSUPP;
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skge->wol = wol->wolopts;
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device_set_wakeup_enable(&hw->pdev->dev, skge->wol);
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return 0;
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}
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/* Determine supported/advertised modes based on hardware.
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* Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx
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*/
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static u32 skge_supported_modes(const struct skge_hw *hw)
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{
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u32 supported;
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if (hw->copper) {
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supported = SUPPORTED_10baseT_Half
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| SUPPORTED_10baseT_Full
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| SUPPORTED_100baseT_Half
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| SUPPORTED_100baseT_Full
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| SUPPORTED_1000baseT_Half
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| SUPPORTED_1000baseT_Full
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| SUPPORTED_Autoneg| SUPPORTED_TP;
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if (hw->chip_id == CHIP_ID_GENESIS)
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supported &= ~(SUPPORTED_10baseT_Half
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| SUPPORTED_10baseT_Full
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| SUPPORTED_100baseT_Half
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| SUPPORTED_100baseT_Full);
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else if (hw->chip_id == CHIP_ID_YUKON)
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supported &= ~SUPPORTED_1000baseT_Half;
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} else
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supported = SUPPORTED_1000baseT_Full | SUPPORTED_1000baseT_Half
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| SUPPORTED_FIBRE | SUPPORTED_Autoneg;
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return supported;
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}
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static int skge_get_settings(struct net_device *dev,
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struct ethtool_cmd *ecmd)
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{
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struct skge_port *skge = netdev_priv(dev);
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struct skge_hw *hw = skge->hw;
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ecmd->transceiver = XCVR_INTERNAL;
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ecmd->supported = skge_supported_modes(hw);
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if (hw->copper) {
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ecmd->port = PORT_TP;
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ecmd->phy_address = hw->phy_addr;
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} else
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ecmd->port = PORT_FIBRE;
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ecmd->advertising = skge->advertising;
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ecmd->autoneg = skge->autoneg;
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ecmd->speed = skge->speed;
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ecmd->duplex = skge->duplex;
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return 0;
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}
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static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
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{
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struct skge_port *skge = netdev_priv(dev);
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const struct skge_hw *hw = skge->hw;
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u32 supported = skge_supported_modes(hw);
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int err = 0;
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if (ecmd->autoneg == AUTONEG_ENABLE) {
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ecmd->advertising = supported;
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skge->duplex = -1;
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skge->speed = -1;
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} else {
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u32 setting;
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switch (ecmd->speed) {
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case SPEED_1000:
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if (ecmd->duplex == DUPLEX_FULL)
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setting = SUPPORTED_1000baseT_Full;
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else if (ecmd->duplex == DUPLEX_HALF)
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setting = SUPPORTED_1000baseT_Half;
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else
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return -EINVAL;
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break;
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case SPEED_100:
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if (ecmd->duplex == DUPLEX_FULL)
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setting = SUPPORTED_100baseT_Full;
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else if (ecmd->duplex == DUPLEX_HALF)
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setting = SUPPORTED_100baseT_Half;
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else
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return -EINVAL;
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break;
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case SPEED_10:
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if (ecmd->duplex == DUPLEX_FULL)
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setting = SUPPORTED_10baseT_Full;
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else if (ecmd->duplex == DUPLEX_HALF)
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setting = SUPPORTED_10baseT_Half;
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else
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return -EINVAL;
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break;
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default:
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return -EINVAL;
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}
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if ((setting & supported) == 0)
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return -EINVAL;
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skge->speed = ecmd->speed;
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skge->duplex = ecmd->duplex;
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}
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skge->autoneg = ecmd->autoneg;
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skge->advertising = ecmd->advertising;
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if (netif_running(dev)) {
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skge_down(dev);
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err = skge_up(dev);
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if (err) {
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dev_close(dev);
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return err;
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}
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}
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return (0);
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}
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static void skge_get_drvinfo(struct net_device *dev,
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struct ethtool_drvinfo *info)
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{
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struct skge_port *skge = netdev_priv(dev);
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strcpy(info->driver, DRV_NAME);
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strcpy(info->version, DRV_VERSION);
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strcpy(info->fw_version, "N/A");
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strcpy(info->bus_info, pci_name(skge->hw->pdev));
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}
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static const struct skge_stat {
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char name[ETH_GSTRING_LEN];
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u16 xmac_offset;
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u16 gma_offset;
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} skge_stats[] = {
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{ "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI },
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{ "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI },
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{ "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK },
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{ "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK },
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{ "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK },
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{ "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK },
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{ "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK },
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{ "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK },
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{ "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE },
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{ "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE },
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{ "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL },
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{ "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL },
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{ "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL },
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{ "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL },
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{ "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR },
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{ "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV },
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{ "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
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{ "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT },
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{ "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG },
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{ "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
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{ "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR },
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};
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static int skge_get_sset_count(struct net_device *dev, int sset)
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{
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switch (sset) {
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case ETH_SS_STATS:
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return ARRAY_SIZE(skge_stats);
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default:
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return -EOPNOTSUPP;
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}
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}
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|
static void skge_get_ethtool_stats(struct net_device *dev,
|
|
struct ethtool_stats *stats, u64 *data)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
if (skge->hw->chip_id == CHIP_ID_GENESIS)
|
|
genesis_get_stats(skge, data);
|
|
else
|
|
yukon_get_stats(skge, data);
|
|
}
|
|
|
|
/* Use hardware MIB variables for critical path statistics and
|
|
* transmit feedback not reported at interrupt.
|
|
* Other errors are accounted for in interrupt handler.
|
|
*/
|
|
static struct net_device_stats *skge_get_stats(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
u64 data[ARRAY_SIZE(skge_stats)];
|
|
|
|
if (skge->hw->chip_id == CHIP_ID_GENESIS)
|
|
genesis_get_stats(skge, data);
|
|
else
|
|
yukon_get_stats(skge, data);
|
|
|
|
dev->stats.tx_bytes = data[0];
|
|
dev->stats.rx_bytes = data[1];
|
|
dev->stats.tx_packets = data[2] + data[4] + data[6];
|
|
dev->stats.rx_packets = data[3] + data[5] + data[7];
|
|
dev->stats.multicast = data[3] + data[5];
|
|
dev->stats.collisions = data[10];
|
|
dev->stats.tx_aborted_errors = data[12];
|
|
|
|
return &dev->stats;
|
|
}
|
|
|
|
static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data)
|
|
{
|
|
int i;
|
|
|
|
switch (stringset) {
|
|
case ETH_SS_STATS:
|
|
for (i = 0; i < ARRAY_SIZE(skge_stats); i++)
|
|
memcpy(data + i * ETH_GSTRING_LEN,
|
|
skge_stats[i].name, ETH_GSTRING_LEN);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void skge_get_ring_param(struct net_device *dev,
|
|
struct ethtool_ringparam *p)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
p->rx_max_pending = MAX_RX_RING_SIZE;
|
|
p->tx_max_pending = MAX_TX_RING_SIZE;
|
|
p->rx_mini_max_pending = 0;
|
|
p->rx_jumbo_max_pending = 0;
|
|
|
|
p->rx_pending = skge->rx_ring.count;
|
|
p->tx_pending = skge->tx_ring.count;
|
|
p->rx_mini_pending = 0;
|
|
p->rx_jumbo_pending = 0;
|
|
}
|
|
|
|
static int skge_set_ring_param(struct net_device *dev,
|
|
struct ethtool_ringparam *p)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
int err = 0;
|
|
|
|
if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE ||
|
|
p->tx_pending < TX_LOW_WATER || p->tx_pending > MAX_TX_RING_SIZE)
|
|
return -EINVAL;
|
|
|
|
skge->rx_ring.count = p->rx_pending;
|
|
skge->tx_ring.count = p->tx_pending;
|
|
|
|
if (netif_running(dev)) {
|
|
skge_down(dev);
|
|
err = skge_up(dev);
|
|
if (err)
|
|
dev_close(dev);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static u32 skge_get_msglevel(struct net_device *netdev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(netdev);
|
|
return skge->msg_enable;
|
|
}
|
|
|
|
static void skge_set_msglevel(struct net_device *netdev, u32 value)
|
|
{
|
|
struct skge_port *skge = netdev_priv(netdev);
|
|
skge->msg_enable = value;
|
|
}
|
|
|
|
static int skge_nway_reset(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev))
|
|
return -EINVAL;
|
|
|
|
skge_phy_reset(skge);
|
|
return 0;
|
|
}
|
|
|
|
static int skge_set_sg(struct net_device *dev, u32 data)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
|
|
if (hw->chip_id == CHIP_ID_GENESIS && data)
|
|
return -EOPNOTSUPP;
|
|
return ethtool_op_set_sg(dev, data);
|
|
}
|
|
|
|
static int skge_set_tx_csum(struct net_device *dev, u32 data)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
|
|
if (hw->chip_id == CHIP_ID_GENESIS && data)
|
|
return -EOPNOTSUPP;
|
|
|
|
return ethtool_op_set_tx_csum(dev, data);
|
|
}
|
|
|
|
static u32 skge_get_rx_csum(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
return skge->rx_csum;
|
|
}
|
|
|
|
/* Only Yukon supports checksum offload. */
|
|
static int skge_set_rx_csum(struct net_device *dev, u32 data)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
if (skge->hw->chip_id == CHIP_ID_GENESIS && data)
|
|
return -EOPNOTSUPP;
|
|
|
|
skge->rx_csum = data;
|
|
return 0;
|
|
}
|
|
|
|
static void skge_get_pauseparam(struct net_device *dev,
|
|
struct ethtool_pauseparam *ecmd)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
ecmd->rx_pause = (skge->flow_control == FLOW_MODE_SYMMETRIC)
|
|
|| (skge->flow_control == FLOW_MODE_SYM_OR_REM);
|
|
ecmd->tx_pause = ecmd->rx_pause || (skge->flow_control == FLOW_MODE_LOC_SEND);
|
|
|
|
ecmd->autoneg = ecmd->rx_pause || ecmd->tx_pause;
|
|
}
|
|
|
|
static int skge_set_pauseparam(struct net_device *dev,
|
|
struct ethtool_pauseparam *ecmd)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct ethtool_pauseparam old;
|
|
int err = 0;
|
|
|
|
skge_get_pauseparam(dev, &old);
|
|
|
|
if (ecmd->autoneg != old.autoneg)
|
|
skge->flow_control = ecmd->autoneg ? FLOW_MODE_NONE : FLOW_MODE_SYMMETRIC;
|
|
else {
|
|
if (ecmd->rx_pause && ecmd->tx_pause)
|
|
skge->flow_control = FLOW_MODE_SYMMETRIC;
|
|
else if (ecmd->rx_pause && !ecmd->tx_pause)
|
|
skge->flow_control = FLOW_MODE_SYM_OR_REM;
|
|
else if (!ecmd->rx_pause && ecmd->tx_pause)
|
|
skge->flow_control = FLOW_MODE_LOC_SEND;
|
|
else
|
|
skge->flow_control = FLOW_MODE_NONE;
|
|
}
|
|
|
|
if (netif_running(dev)) {
|
|
skge_down(dev);
|
|
err = skge_up(dev);
|
|
if (err) {
|
|
dev_close(dev);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Chip internal frequency for clock calculations */
|
|
static inline u32 hwkhz(const struct skge_hw *hw)
|
|
{
|
|
return (hw->chip_id == CHIP_ID_GENESIS) ? 53125 : 78125;
|
|
}
|
|
|
|
/* Chip HZ to microseconds */
|
|
static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks)
|
|
{
|
|
return (ticks * 1000) / hwkhz(hw);
|
|
}
|
|
|
|
/* Microseconds to chip HZ */
|
|
static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec)
|
|
{
|
|
return hwkhz(hw) * usec / 1000;
|
|
}
|
|
|
|
static int skge_get_coalesce(struct net_device *dev,
|
|
struct ethtool_coalesce *ecmd)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
|
|
ecmd->rx_coalesce_usecs = 0;
|
|
ecmd->tx_coalesce_usecs = 0;
|
|
|
|
if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) {
|
|
u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI));
|
|
u32 msk = skge_read32(hw, B2_IRQM_MSK);
|
|
|
|
if (msk & rxirqmask[port])
|
|
ecmd->rx_coalesce_usecs = delay;
|
|
if (msk & txirqmask[port])
|
|
ecmd->tx_coalesce_usecs = delay;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Note: interrupt timer is per board, but can turn on/off per port */
|
|
static int skge_set_coalesce(struct net_device *dev,
|
|
struct ethtool_coalesce *ecmd)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
u32 msk = skge_read32(hw, B2_IRQM_MSK);
|
|
u32 delay = 25;
|
|
|
|
if (ecmd->rx_coalesce_usecs == 0)
|
|
msk &= ~rxirqmask[port];
|
|
else if (ecmd->rx_coalesce_usecs < 25 ||
|
|
ecmd->rx_coalesce_usecs > 33333)
|
|
return -EINVAL;
|
|
else {
|
|
msk |= rxirqmask[port];
|
|
delay = ecmd->rx_coalesce_usecs;
|
|
}
|
|
|
|
if (ecmd->tx_coalesce_usecs == 0)
|
|
msk &= ~txirqmask[port];
|
|
else if (ecmd->tx_coalesce_usecs < 25 ||
|
|
ecmd->tx_coalesce_usecs > 33333)
|
|
return -EINVAL;
|
|
else {
|
|
msk |= txirqmask[port];
|
|
delay = min(delay, ecmd->rx_coalesce_usecs);
|
|
}
|
|
|
|
skge_write32(hw, B2_IRQM_MSK, msk);
|
|
if (msk == 0)
|
|
skge_write32(hw, B2_IRQM_CTRL, TIM_STOP);
|
|
else {
|
|
skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay));
|
|
skge_write32(hw, B2_IRQM_CTRL, TIM_START);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
enum led_mode { LED_MODE_OFF, LED_MODE_ON, LED_MODE_TST };
|
|
static void skge_led(struct skge_port *skge, enum led_mode mode)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
|
|
spin_lock_bh(&hw->phy_lock);
|
|
if (hw->chip_id == CHIP_ID_GENESIS) {
|
|
switch (mode) {
|
|
case LED_MODE_OFF:
|
|
if (hw->phy_type == SK_PHY_BCOM)
|
|
xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF);
|
|
else {
|
|
skge_write32(hw, SK_REG(port, TX_LED_VAL), 0);
|
|
skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_T_OFF);
|
|
}
|
|
skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
|
|
skge_write32(hw, SK_REG(port, RX_LED_VAL), 0);
|
|
skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF);
|
|
break;
|
|
|
|
case LED_MODE_ON:
|
|
skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON);
|
|
skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON);
|
|
|
|
skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
|
|
skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
|
|
|
|
break;
|
|
|
|
case LED_MODE_TST:
|
|
skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON);
|
|
skge_write32(hw, SK_REG(port, RX_LED_VAL), 100);
|
|
skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
|
|
|
|
if (hw->phy_type == SK_PHY_BCOM)
|
|
xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON);
|
|
else {
|
|
skge_write8(hw, SK_REG(port, TX_LED_TST), LED_T_ON);
|
|
skge_write32(hw, SK_REG(port, TX_LED_VAL), 100);
|
|
skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
|
|
}
|
|
|
|
}
|
|
} else {
|
|
switch (mode) {
|
|
case LED_MODE_OFF:
|
|
gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
|
|
gm_phy_write(hw, port, PHY_MARV_LED_OVER,
|
|
PHY_M_LED_MO_DUP(MO_LED_OFF) |
|
|
PHY_M_LED_MO_10(MO_LED_OFF) |
|
|
PHY_M_LED_MO_100(MO_LED_OFF) |
|
|
PHY_M_LED_MO_1000(MO_LED_OFF) |
|
|
PHY_M_LED_MO_RX(MO_LED_OFF));
|
|
break;
|
|
case LED_MODE_ON:
|
|
gm_phy_write(hw, port, PHY_MARV_LED_CTRL,
|
|
PHY_M_LED_PULS_DUR(PULS_170MS) |
|
|
PHY_M_LED_BLINK_RT(BLINK_84MS) |
|
|
PHY_M_LEDC_TX_CTRL |
|
|
PHY_M_LEDC_DP_CTRL);
|
|
|
|
gm_phy_write(hw, port, PHY_MARV_LED_OVER,
|
|
PHY_M_LED_MO_RX(MO_LED_OFF) |
|
|
(skge->speed == SPEED_100 ?
|
|
PHY_M_LED_MO_100(MO_LED_ON) : 0));
|
|
break;
|
|
case LED_MODE_TST:
|
|
gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
|
|
gm_phy_write(hw, port, PHY_MARV_LED_OVER,
|
|
PHY_M_LED_MO_DUP(MO_LED_ON) |
|
|
PHY_M_LED_MO_10(MO_LED_ON) |
|
|
PHY_M_LED_MO_100(MO_LED_ON) |
|
|
PHY_M_LED_MO_1000(MO_LED_ON) |
|
|
PHY_M_LED_MO_RX(MO_LED_ON));
|
|
}
|
|
}
|
|
spin_unlock_bh(&hw->phy_lock);
|
|
}
|
|
|
|
/* blink LED's for finding board */
|
|
static int skge_phys_id(struct net_device *dev, u32 data)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
unsigned long ms;
|
|
enum led_mode mode = LED_MODE_TST;
|
|
|
|
if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ))
|
|
ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT / HZ) * 1000;
|
|
else
|
|
ms = data * 1000;
|
|
|
|
while (ms > 0) {
|
|
skge_led(skge, mode);
|
|
mode ^= LED_MODE_TST;
|
|
|
|
if (msleep_interruptible(BLINK_MS))
|
|
break;
|
|
ms -= BLINK_MS;
|
|
}
|
|
|
|
/* back to regular LED state */
|
|
skge_led(skge, netif_running(dev) ? LED_MODE_ON : LED_MODE_OFF);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int skge_get_eeprom_len(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
u32 reg2;
|
|
|
|
pci_read_config_dword(skge->hw->pdev, PCI_DEV_REG2, ®2);
|
|
return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
|
|
}
|
|
|
|
static u32 skge_vpd_read(struct pci_dev *pdev, int cap, u16 offset)
|
|
{
|
|
u32 val;
|
|
|
|
pci_write_config_word(pdev, cap + PCI_VPD_ADDR, offset);
|
|
|
|
do {
|
|
pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset);
|
|
} while (!(offset & PCI_VPD_ADDR_F));
|
|
|
|
pci_read_config_dword(pdev, cap + PCI_VPD_DATA, &val);
|
|
return val;
|
|
}
|
|
|
|
static void skge_vpd_write(struct pci_dev *pdev, int cap, u16 offset, u32 val)
|
|
{
|
|
pci_write_config_dword(pdev, cap + PCI_VPD_DATA, val);
|
|
pci_write_config_word(pdev, cap + PCI_VPD_ADDR,
|
|
offset | PCI_VPD_ADDR_F);
|
|
|
|
do {
|
|
pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset);
|
|
} while (offset & PCI_VPD_ADDR_F);
|
|
}
|
|
|
|
static int skge_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
|
|
u8 *data)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct pci_dev *pdev = skge->hw->pdev;
|
|
int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD);
|
|
int length = eeprom->len;
|
|
u16 offset = eeprom->offset;
|
|
|
|
if (!cap)
|
|
return -EINVAL;
|
|
|
|
eeprom->magic = SKGE_EEPROM_MAGIC;
|
|
|
|
while (length > 0) {
|
|
u32 val = skge_vpd_read(pdev, cap, offset);
|
|
int n = min_t(int, length, sizeof(val));
|
|
|
|
memcpy(data, &val, n);
|
|
length -= n;
|
|
data += n;
|
|
offset += n;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int skge_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
|
|
u8 *data)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct pci_dev *pdev = skge->hw->pdev;
|
|
int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD);
|
|
int length = eeprom->len;
|
|
u16 offset = eeprom->offset;
|
|
|
|
if (!cap)
|
|
return -EINVAL;
|
|
|
|
if (eeprom->magic != SKGE_EEPROM_MAGIC)
|
|
return -EINVAL;
|
|
|
|
while (length > 0) {
|
|
u32 val;
|
|
int n = min_t(int, length, sizeof(val));
|
|
|
|
if (n < sizeof(val))
|
|
val = skge_vpd_read(pdev, cap, offset);
|
|
memcpy(&val, data, n);
|
|
|
|
skge_vpd_write(pdev, cap, offset, val);
|
|
|
|
length -= n;
|
|
data += n;
|
|
offset += n;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const struct ethtool_ops skge_ethtool_ops = {
|
|
.get_settings = skge_get_settings,
|
|
.set_settings = skge_set_settings,
|
|
.get_drvinfo = skge_get_drvinfo,
|
|
.get_regs_len = skge_get_regs_len,
|
|
.get_regs = skge_get_regs,
|
|
.get_wol = skge_get_wol,
|
|
.set_wol = skge_set_wol,
|
|
.get_msglevel = skge_get_msglevel,
|
|
.set_msglevel = skge_set_msglevel,
|
|
.nway_reset = skge_nway_reset,
|
|
.get_link = ethtool_op_get_link,
|
|
.get_eeprom_len = skge_get_eeprom_len,
|
|
.get_eeprom = skge_get_eeprom,
|
|
.set_eeprom = skge_set_eeprom,
|
|
.get_ringparam = skge_get_ring_param,
|
|
.set_ringparam = skge_set_ring_param,
|
|
.get_pauseparam = skge_get_pauseparam,
|
|
.set_pauseparam = skge_set_pauseparam,
|
|
.get_coalesce = skge_get_coalesce,
|
|
.set_coalesce = skge_set_coalesce,
|
|
.set_sg = skge_set_sg,
|
|
.set_tx_csum = skge_set_tx_csum,
|
|
.get_rx_csum = skge_get_rx_csum,
|
|
.set_rx_csum = skge_set_rx_csum,
|
|
.get_strings = skge_get_strings,
|
|
.phys_id = skge_phys_id,
|
|
.get_sset_count = skge_get_sset_count,
|
|
.get_ethtool_stats = skge_get_ethtool_stats,
|
|
};
|
|
|
|
/*
|
|
* Allocate ring elements and chain them together
|
|
* One-to-one association of board descriptors with ring elements
|
|
*/
|
|
static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u32 base)
|
|
{
|
|
struct skge_tx_desc *d;
|
|
struct skge_element *e;
|
|
int i;
|
|
|
|
ring->start = kcalloc(ring->count, sizeof(*e), GFP_KERNEL);
|
|
if (!ring->start)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) {
|
|
e->desc = d;
|
|
if (i == ring->count - 1) {
|
|
e->next = ring->start;
|
|
d->next_offset = base;
|
|
} else {
|
|
e->next = e + 1;
|
|
d->next_offset = base + (i+1) * sizeof(*d);
|
|
}
|
|
}
|
|
ring->to_use = ring->to_clean = ring->start;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Allocate and setup a new buffer for receiving */
|
|
static void skge_rx_setup(struct skge_port *skge, struct skge_element *e,
|
|
struct sk_buff *skb, unsigned int bufsize)
|
|
{
|
|
struct skge_rx_desc *rd = e->desc;
|
|
u64 map;
|
|
|
|
map = pci_map_single(skge->hw->pdev, skb->data, bufsize,
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
rd->dma_lo = map;
|
|
rd->dma_hi = map >> 32;
|
|
e->skb = skb;
|
|
rd->csum1_start = ETH_HLEN;
|
|
rd->csum2_start = ETH_HLEN;
|
|
rd->csum1 = 0;
|
|
rd->csum2 = 0;
|
|
|
|
wmb();
|
|
|
|
rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize;
|
|
pci_unmap_addr_set(e, mapaddr, map);
|
|
pci_unmap_len_set(e, maplen, bufsize);
|
|
}
|
|
|
|
/* Resume receiving using existing skb,
|
|
* Note: DMA address is not changed by chip.
|
|
* MTU not changed while receiver active.
|
|
*/
|
|
static inline void skge_rx_reuse(struct skge_element *e, unsigned int size)
|
|
{
|
|
struct skge_rx_desc *rd = e->desc;
|
|
|
|
rd->csum2 = 0;
|
|
rd->csum2_start = ETH_HLEN;
|
|
|
|
wmb();
|
|
|
|
rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | size;
|
|
}
|
|
|
|
|
|
/* Free all buffers in receive ring, assumes receiver stopped */
|
|
static void skge_rx_clean(struct skge_port *skge)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
struct skge_ring *ring = &skge->rx_ring;
|
|
struct skge_element *e;
|
|
|
|
e = ring->start;
|
|
do {
|
|
struct skge_rx_desc *rd = e->desc;
|
|
rd->control = 0;
|
|
if (e->skb) {
|
|
pci_unmap_single(hw->pdev,
|
|
pci_unmap_addr(e, mapaddr),
|
|
pci_unmap_len(e, maplen),
|
|
PCI_DMA_FROMDEVICE);
|
|
dev_kfree_skb(e->skb);
|
|
e->skb = NULL;
|
|
}
|
|
} while ((e = e->next) != ring->start);
|
|
}
|
|
|
|
|
|
/* Allocate buffers for receive ring
|
|
* For receive: to_clean is next received frame.
|
|
*/
|
|
static int skge_rx_fill(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_ring *ring = &skge->rx_ring;
|
|
struct skge_element *e;
|
|
|
|
e = ring->start;
|
|
do {
|
|
struct sk_buff *skb;
|
|
|
|
skb = __netdev_alloc_skb(dev, skge->rx_buf_size + NET_IP_ALIGN,
|
|
GFP_KERNEL);
|
|
if (!skb)
|
|
return -ENOMEM;
|
|
|
|
skb_reserve(skb, NET_IP_ALIGN);
|
|
skge_rx_setup(skge, e, skb, skge->rx_buf_size);
|
|
} while ( (e = e->next) != ring->start);
|
|
|
|
ring->to_clean = ring->start;
|
|
return 0;
|
|
}
|
|
|
|
static const char *skge_pause(enum pause_status status)
|
|
{
|
|
switch(status) {
|
|
case FLOW_STAT_NONE:
|
|
return "none";
|
|
case FLOW_STAT_REM_SEND:
|
|
return "rx only";
|
|
case FLOW_STAT_LOC_SEND:
|
|
return "tx_only";
|
|
case FLOW_STAT_SYMMETRIC: /* Both station may send PAUSE */
|
|
return "both";
|
|
default:
|
|
return "indeterminated";
|
|
}
|
|
}
|
|
|
|
|
|
static void skge_link_up(struct skge_port *skge)
|
|
{
|
|
skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG),
|
|
LED_BLK_OFF|LED_SYNC_OFF|LED_ON);
|
|
|
|
netif_carrier_on(skge->netdev);
|
|
netif_wake_queue(skge->netdev);
|
|
|
|
if (netif_msg_link(skge)) {
|
|
printk(KERN_INFO PFX
|
|
"%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
|
|
skge->netdev->name, skge->speed,
|
|
skge->duplex == DUPLEX_FULL ? "full" : "half",
|
|
skge_pause(skge->flow_status));
|
|
}
|
|
}
|
|
|
|
static void skge_link_down(struct skge_port *skge)
|
|
{
|
|
skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
|
|
netif_carrier_off(skge->netdev);
|
|
netif_stop_queue(skge->netdev);
|
|
|
|
if (netif_msg_link(skge))
|
|
printk(KERN_INFO PFX "%s: Link is down.\n", skge->netdev->name);
|
|
}
|
|
|
|
|
|
static void xm_link_down(struct skge_hw *hw, int port)
|
|
{
|
|
struct net_device *dev = hw->dev[port];
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE);
|
|
|
|
if (netif_carrier_ok(dev))
|
|
skge_link_down(skge);
|
|
}
|
|
|
|
static int __xm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
|
|
{
|
|
int i;
|
|
|
|
xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
|
|
*val = xm_read16(hw, port, XM_PHY_DATA);
|
|
|
|
if (hw->phy_type == SK_PHY_XMAC)
|
|
goto ready;
|
|
|
|
for (i = 0; i < PHY_RETRIES; i++) {
|
|
if (xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_RDY)
|
|
goto ready;
|
|
udelay(1);
|
|
}
|
|
|
|
return -ETIMEDOUT;
|
|
ready:
|
|
*val = xm_read16(hw, port, XM_PHY_DATA);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg)
|
|
{
|
|
u16 v = 0;
|
|
if (__xm_phy_read(hw, port, reg, &v))
|
|
printk(KERN_WARNING PFX "%s: phy read timed out\n",
|
|
hw->dev[port]->name);
|
|
return v;
|
|
}
|
|
|
|
static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
|
|
{
|
|
int i;
|
|
|
|
xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
|
|
for (i = 0; i < PHY_RETRIES; i++) {
|
|
if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
|
|
goto ready;
|
|
udelay(1);
|
|
}
|
|
return -EIO;
|
|
|
|
ready:
|
|
xm_write16(hw, port, XM_PHY_DATA, val);
|
|
for (i = 0; i < PHY_RETRIES; i++) {
|
|
if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
|
|
return 0;
|
|
udelay(1);
|
|
}
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
static void genesis_init(struct skge_hw *hw)
|
|
{
|
|
/* set blink source counter */
|
|
skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100);
|
|
skge_write8(hw, B2_BSC_CTRL, BSC_START);
|
|
|
|
/* configure mac arbiter */
|
|
skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
|
|
|
|
/* configure mac arbiter timeout values */
|
|
skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53);
|
|
skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53);
|
|
skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53);
|
|
skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53);
|
|
|
|
skge_write8(hw, B3_MA_RCINI_RX1, 0);
|
|
skge_write8(hw, B3_MA_RCINI_RX2, 0);
|
|
skge_write8(hw, B3_MA_RCINI_TX1, 0);
|
|
skge_write8(hw, B3_MA_RCINI_TX2, 0);
|
|
|
|
/* configure packet arbiter timeout */
|
|
skge_write16(hw, B3_PA_CTRL, PA_RST_CLR);
|
|
skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX);
|
|
skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX);
|
|
skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX);
|
|
skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX);
|
|
}
|
|
|
|
static void genesis_reset(struct skge_hw *hw, int port)
|
|
{
|
|
const u8 zero[8] = { 0 };
|
|
u32 reg;
|
|
|
|
skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
|
|
|
|
/* reset the statistics module */
|
|
xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT);
|
|
xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE);
|
|
xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */
|
|
xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */
|
|
xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */
|
|
|
|
/* disable Broadcom PHY IRQ */
|
|
if (hw->phy_type == SK_PHY_BCOM)
|
|
xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff);
|
|
|
|
xm_outhash(hw, port, XM_HSM, zero);
|
|
|
|
/* Flush TX and RX fifo */
|
|
reg = xm_read32(hw, port, XM_MODE);
|
|
xm_write32(hw, port, XM_MODE, reg | XM_MD_FTF);
|
|
xm_write32(hw, port, XM_MODE, reg | XM_MD_FRF);
|
|
}
|
|
|
|
|
|
/* Convert mode to MII values */
|
|
static const u16 phy_pause_map[] = {
|
|
[FLOW_MODE_NONE] = 0,
|
|
[FLOW_MODE_LOC_SEND] = PHY_AN_PAUSE_ASYM,
|
|
[FLOW_MODE_SYMMETRIC] = PHY_AN_PAUSE_CAP,
|
|
[FLOW_MODE_SYM_OR_REM] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM,
|
|
};
|
|
|
|
/* special defines for FIBER (88E1011S only) */
|
|
static const u16 fiber_pause_map[] = {
|
|
[FLOW_MODE_NONE] = PHY_X_P_NO_PAUSE,
|
|
[FLOW_MODE_LOC_SEND] = PHY_X_P_ASYM_MD,
|
|
[FLOW_MODE_SYMMETRIC] = PHY_X_P_SYM_MD,
|
|
[FLOW_MODE_SYM_OR_REM] = PHY_X_P_BOTH_MD,
|
|
};
|
|
|
|
|
|
/* Check status of Broadcom phy link */
|
|
static void bcom_check_link(struct skge_hw *hw, int port)
|
|
{
|
|
struct net_device *dev = hw->dev[port];
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
u16 status;
|
|
|
|
/* read twice because of latch */
|
|
xm_phy_read(hw, port, PHY_BCOM_STAT);
|
|
status = xm_phy_read(hw, port, PHY_BCOM_STAT);
|
|
|
|
if ((status & PHY_ST_LSYNC) == 0) {
|
|
xm_link_down(hw, port);
|
|
return;
|
|
}
|
|
|
|
if (skge->autoneg == AUTONEG_ENABLE) {
|
|
u16 lpa, aux;
|
|
|
|
if (!(status & PHY_ST_AN_OVER))
|
|
return;
|
|
|
|
lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP);
|
|
if (lpa & PHY_B_AN_RF) {
|
|
printk(KERN_NOTICE PFX "%s: remote fault\n",
|
|
dev->name);
|
|
return;
|
|
}
|
|
|
|
aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT);
|
|
|
|
/* Check Duplex mismatch */
|
|
switch (aux & PHY_B_AS_AN_RES_MSK) {
|
|
case PHY_B_RES_1000FD:
|
|
skge->duplex = DUPLEX_FULL;
|
|
break;
|
|
case PHY_B_RES_1000HD:
|
|
skge->duplex = DUPLEX_HALF;
|
|
break;
|
|
default:
|
|
printk(KERN_NOTICE PFX "%s: duplex mismatch\n",
|
|
dev->name);
|
|
return;
|
|
}
|
|
|
|
/* We are using IEEE 802.3z/D5.0 Table 37-4 */
|
|
switch (aux & PHY_B_AS_PAUSE_MSK) {
|
|
case PHY_B_AS_PAUSE_MSK:
|
|
skge->flow_status = FLOW_STAT_SYMMETRIC;
|
|
break;
|
|
case PHY_B_AS_PRR:
|
|
skge->flow_status = FLOW_STAT_REM_SEND;
|
|
break;
|
|
case PHY_B_AS_PRT:
|
|
skge->flow_status = FLOW_STAT_LOC_SEND;
|
|
break;
|
|
default:
|
|
skge->flow_status = FLOW_STAT_NONE;
|
|
}
|
|
skge->speed = SPEED_1000;
|
|
}
|
|
|
|
if (!netif_carrier_ok(dev))
|
|
genesis_link_up(skge);
|
|
}
|
|
|
|
/* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional
|
|
* Phy on for 100 or 10Mbit operation
|
|
*/
|
|
static void bcom_phy_init(struct skge_port *skge)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
int i;
|
|
u16 id1, r, ext, ctl;
|
|
|
|
/* magic workaround patterns for Broadcom */
|
|
static const struct {
|
|
u16 reg;
|
|
u16 val;
|
|
} A1hack[] = {
|
|
{ 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
|
|
{ 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
|
|
{ 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
|
|
{ 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
|
|
}, C0hack[] = {
|
|
{ 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
|
|
{ 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
|
|
};
|
|
|
|
/* read Id from external PHY (all have the same address) */
|
|
id1 = xm_phy_read(hw, port, PHY_XMAC_ID1);
|
|
|
|
/* Optimize MDIO transfer by suppressing preamble. */
|
|
r = xm_read16(hw, port, XM_MMU_CMD);
|
|
r |= XM_MMU_NO_PRE;
|
|
xm_write16(hw, port, XM_MMU_CMD,r);
|
|
|
|
switch (id1) {
|
|
case PHY_BCOM_ID1_C0:
|
|
/*
|
|
* Workaround BCOM Errata for the C0 type.
|
|
* Write magic patterns to reserved registers.
|
|
*/
|
|
for (i = 0; i < ARRAY_SIZE(C0hack); i++)
|
|
xm_phy_write(hw, port,
|
|
C0hack[i].reg, C0hack[i].val);
|
|
|
|
break;
|
|
case PHY_BCOM_ID1_A1:
|
|
/*
|
|
* Workaround BCOM Errata for the A1 type.
|
|
* Write magic patterns to reserved registers.
|
|
*/
|
|
for (i = 0; i < ARRAY_SIZE(A1hack); i++)
|
|
xm_phy_write(hw, port,
|
|
A1hack[i].reg, A1hack[i].val);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Workaround BCOM Errata (#10523) for all BCom PHYs.
|
|
* Disable Power Management after reset.
|
|
*/
|
|
r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL);
|
|
r |= PHY_B_AC_DIS_PM;
|
|
xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r);
|
|
|
|
/* Dummy read */
|
|
xm_read16(hw, port, XM_ISRC);
|
|
|
|
ext = PHY_B_PEC_EN_LTR; /* enable tx led */
|
|
ctl = PHY_CT_SP1000; /* always 1000mbit */
|
|
|
|
if (skge->autoneg == AUTONEG_ENABLE) {
|
|
/*
|
|
* Workaround BCOM Errata #1 for the C5 type.
|
|
* 1000Base-T Link Acquisition Failure in Slave Mode
|
|
* Set Repeater/DTE bit 10 of the 1000Base-T Control Register
|
|
*/
|
|
u16 adv = PHY_B_1000C_RD;
|
|
if (skge->advertising & ADVERTISED_1000baseT_Half)
|
|
adv |= PHY_B_1000C_AHD;
|
|
if (skge->advertising & ADVERTISED_1000baseT_Full)
|
|
adv |= PHY_B_1000C_AFD;
|
|
xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, adv);
|
|
|
|
ctl |= PHY_CT_ANE | PHY_CT_RE_CFG;
|
|
} else {
|
|
if (skge->duplex == DUPLEX_FULL)
|
|
ctl |= PHY_CT_DUP_MD;
|
|
/* Force to slave */
|
|
xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, PHY_B_1000C_MSE);
|
|
}
|
|
|
|
/* Set autonegotiation pause parameters */
|
|
xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV,
|
|
phy_pause_map[skge->flow_control] | PHY_AN_CSMA);
|
|
|
|
/* Handle Jumbo frames */
|
|
if (hw->dev[port]->mtu > ETH_DATA_LEN) {
|
|
xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
|
|
PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK);
|
|
|
|
ext |= PHY_B_PEC_HIGH_LA;
|
|
|
|
}
|
|
|
|
xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ext);
|
|
xm_phy_write(hw, port, PHY_BCOM_CTRL, ctl);
|
|
|
|
/* Use link status change interrupt */
|
|
xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
|
|
}
|
|
|
|
static void xm_phy_init(struct skge_port *skge)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
u16 ctrl = 0;
|
|
|
|
if (skge->autoneg == AUTONEG_ENABLE) {
|
|
if (skge->advertising & ADVERTISED_1000baseT_Half)
|
|
ctrl |= PHY_X_AN_HD;
|
|
if (skge->advertising & ADVERTISED_1000baseT_Full)
|
|
ctrl |= PHY_X_AN_FD;
|
|
|
|
ctrl |= fiber_pause_map[skge->flow_control];
|
|
|
|
xm_phy_write(hw, port, PHY_XMAC_AUNE_ADV, ctrl);
|
|
|
|
/* Restart Auto-negotiation */
|
|
ctrl = PHY_CT_ANE | PHY_CT_RE_CFG;
|
|
} else {
|
|
/* Set DuplexMode in Config register */
|
|
if (skge->duplex == DUPLEX_FULL)
|
|
ctrl |= PHY_CT_DUP_MD;
|
|
/*
|
|
* Do NOT enable Auto-negotiation here. This would hold
|
|
* the link down because no IDLEs are transmitted
|
|
*/
|
|
}
|
|
|
|
xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl);
|
|
|
|
/* Poll PHY for status changes */
|
|
mod_timer(&skge->link_timer, jiffies + LINK_HZ);
|
|
}
|
|
|
|
static int xm_check_link(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
u16 status;
|
|
|
|
/* read twice because of latch */
|
|
xm_phy_read(hw, port, PHY_XMAC_STAT);
|
|
status = xm_phy_read(hw, port, PHY_XMAC_STAT);
|
|
|
|
if ((status & PHY_ST_LSYNC) == 0) {
|
|
xm_link_down(hw, port);
|
|
return 0;
|
|
}
|
|
|
|
if (skge->autoneg == AUTONEG_ENABLE) {
|
|
u16 lpa, res;
|
|
|
|
if (!(status & PHY_ST_AN_OVER))
|
|
return 0;
|
|
|
|
lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP);
|
|
if (lpa & PHY_B_AN_RF) {
|
|
printk(KERN_NOTICE PFX "%s: remote fault\n",
|
|
dev->name);
|
|
return 0;
|
|
}
|
|
|
|
res = xm_phy_read(hw, port, PHY_XMAC_RES_ABI);
|
|
|
|
/* Check Duplex mismatch */
|
|
switch (res & (PHY_X_RS_HD | PHY_X_RS_FD)) {
|
|
case PHY_X_RS_FD:
|
|
skge->duplex = DUPLEX_FULL;
|
|
break;
|
|
case PHY_X_RS_HD:
|
|
skge->duplex = DUPLEX_HALF;
|
|
break;
|
|
default:
|
|
printk(KERN_NOTICE PFX "%s: duplex mismatch\n",
|
|
dev->name);
|
|
return 0;
|
|
}
|
|
|
|
/* We are using IEEE 802.3z/D5.0 Table 37-4 */
|
|
if ((skge->flow_control == FLOW_MODE_SYMMETRIC ||
|
|
skge->flow_control == FLOW_MODE_SYM_OR_REM) &&
|
|
(lpa & PHY_X_P_SYM_MD))
|
|
skge->flow_status = FLOW_STAT_SYMMETRIC;
|
|
else if (skge->flow_control == FLOW_MODE_SYM_OR_REM &&
|
|
(lpa & PHY_X_RS_PAUSE) == PHY_X_P_ASYM_MD)
|
|
/* Enable PAUSE receive, disable PAUSE transmit */
|
|
skge->flow_status = FLOW_STAT_REM_SEND;
|
|
else if (skge->flow_control == FLOW_MODE_LOC_SEND &&
|
|
(lpa & PHY_X_RS_PAUSE) == PHY_X_P_BOTH_MD)
|
|
/* Disable PAUSE receive, enable PAUSE transmit */
|
|
skge->flow_status = FLOW_STAT_LOC_SEND;
|
|
else
|
|
skge->flow_status = FLOW_STAT_NONE;
|
|
|
|
skge->speed = SPEED_1000;
|
|
}
|
|
|
|
if (!netif_carrier_ok(dev))
|
|
genesis_link_up(skge);
|
|
return 1;
|
|
}
|
|
|
|
/* Poll to check for link coming up.
|
|
*
|
|
* Since internal PHY is wired to a level triggered pin, can't
|
|
* get an interrupt when carrier is detected, need to poll for
|
|
* link coming up.
|
|
*/
|
|
static void xm_link_timer(unsigned long arg)
|
|
{
|
|
struct skge_port *skge = (struct skge_port *) arg;
|
|
struct net_device *dev = skge->netdev;
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
int i;
|
|
unsigned long flags;
|
|
|
|
if (!netif_running(dev))
|
|
return;
|
|
|
|
spin_lock_irqsave(&hw->phy_lock, flags);
|
|
|
|
/*
|
|
* Verify that the link by checking GPIO register three times.
|
|
* This pin has the signal from the link_sync pin connected to it.
|
|
*/
|
|
for (i = 0; i < 3; i++) {
|
|
if (xm_read16(hw, port, XM_GP_PORT) & XM_GP_INP_ASS)
|
|
goto link_down;
|
|
}
|
|
|
|
/* Re-enable interrupt to detect link down */
|
|
if (xm_check_link(dev)) {
|
|
u16 msk = xm_read16(hw, port, XM_IMSK);
|
|
msk &= ~XM_IS_INP_ASS;
|
|
xm_write16(hw, port, XM_IMSK, msk);
|
|
xm_read16(hw, port, XM_ISRC);
|
|
} else {
|
|
link_down:
|
|
mod_timer(&skge->link_timer,
|
|
round_jiffies(jiffies + LINK_HZ));
|
|
}
|
|
spin_unlock_irqrestore(&hw->phy_lock, flags);
|
|
}
|
|
|
|
static void genesis_mac_init(struct skge_hw *hw, int port)
|
|
{
|
|
struct net_device *dev = hw->dev[port];
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
int jumbo = hw->dev[port]->mtu > ETH_DATA_LEN;
|
|
int i;
|
|
u32 r;
|
|
const u8 zero[6] = { 0 };
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
|
|
MFF_SET_MAC_RST);
|
|
if (skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST)
|
|
goto reset_ok;
|
|
udelay(1);
|
|
}
|
|
|
|
printk(KERN_WARNING PFX "%s: genesis reset failed\n", dev->name);
|
|
|
|
reset_ok:
|
|
/* Unreset the XMAC. */
|
|
skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
|
|
|
|
/*
|
|
* Perform additional initialization for external PHYs,
|
|
* namely for the 1000baseTX cards that use the XMAC's
|
|
* GMII mode.
|
|
*/
|
|
if (hw->phy_type != SK_PHY_XMAC) {
|
|
/* Take external Phy out of reset */
|
|
r = skge_read32(hw, B2_GP_IO);
|
|
if (port == 0)
|
|
r |= GP_DIR_0|GP_IO_0;
|
|
else
|
|
r |= GP_DIR_2|GP_IO_2;
|
|
|
|
skge_write32(hw, B2_GP_IO, r);
|
|
|
|
/* Enable GMII interface */
|
|
xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD);
|
|
}
|
|
|
|
|
|
switch(hw->phy_type) {
|
|
case SK_PHY_XMAC:
|
|
xm_phy_init(skge);
|
|
break;
|
|
case SK_PHY_BCOM:
|
|
bcom_phy_init(skge);
|
|
bcom_check_link(hw, port);
|
|
}
|
|
|
|
/* Set Station Address */
|
|
xm_outaddr(hw, port, XM_SA, dev->dev_addr);
|
|
|
|
/* We don't use match addresses so clear */
|
|
for (i = 1; i < 16; i++)
|
|
xm_outaddr(hw, port, XM_EXM(i), zero);
|
|
|
|
/* Clear MIB counters */
|
|
xm_write16(hw, port, XM_STAT_CMD,
|
|
XM_SC_CLR_RXC | XM_SC_CLR_TXC);
|
|
/* Clear two times according to Errata #3 */
|
|
xm_write16(hw, port, XM_STAT_CMD,
|
|
XM_SC_CLR_RXC | XM_SC_CLR_TXC);
|
|
|
|
/* configure Rx High Water Mark (XM_RX_HI_WM) */
|
|
xm_write16(hw, port, XM_RX_HI_WM, 1450);
|
|
|
|
/* We don't need the FCS appended to the packet. */
|
|
r = XM_RX_LENERR_OK | XM_RX_STRIP_FCS;
|
|
if (jumbo)
|
|
r |= XM_RX_BIG_PK_OK;
|
|
|
|
if (skge->duplex == DUPLEX_HALF) {
|
|
/*
|
|
* If in manual half duplex mode the other side might be in
|
|
* full duplex mode, so ignore if a carrier extension is not seen
|
|
* on frames received
|
|
*/
|
|
r |= XM_RX_DIS_CEXT;
|
|
}
|
|
xm_write16(hw, port, XM_RX_CMD, r);
|
|
|
|
/* We want short frames padded to 60 bytes. */
|
|
xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD);
|
|
|
|
/* Increase threshold for jumbo frames on dual port */
|
|
if (hw->ports > 1 && jumbo)
|
|
xm_write16(hw, port, XM_TX_THR, 1020);
|
|
else
|
|
xm_write16(hw, port, XM_TX_THR, 512);
|
|
|
|
/*
|
|
* Enable the reception of all error frames. This is is
|
|
* a necessary evil due to the design of the XMAC. The
|
|
* XMAC's receive FIFO is only 8K in size, however jumbo
|
|
* frames can be up to 9000 bytes in length. When bad
|
|
* frame filtering is enabled, the XMAC's RX FIFO operates
|
|
* in 'store and forward' mode. For this to work, the
|
|
* entire frame has to fit into the FIFO, but that means
|
|
* that jumbo frames larger than 8192 bytes will be
|
|
* truncated. Disabling all bad frame filtering causes
|
|
* the RX FIFO to operate in streaming mode, in which
|
|
* case the XMAC will start transferring frames out of the
|
|
* RX FIFO as soon as the FIFO threshold is reached.
|
|
*/
|
|
xm_write32(hw, port, XM_MODE, XM_DEF_MODE);
|
|
|
|
|
|
/*
|
|
* Initialize the Receive Counter Event Mask (XM_RX_EV_MSK)
|
|
* - Enable all bits excepting 'Octets Rx OK Low CntOv'
|
|
* and 'Octets Rx OK Hi Cnt Ov'.
|
|
*/
|
|
xm_write32(hw, port, XM_RX_EV_MSK, XMR_DEF_MSK);
|
|
|
|
/*
|
|
* Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK)
|
|
* - Enable all bits excepting 'Octets Tx OK Low CntOv'
|
|
* and 'Octets Tx OK Hi Cnt Ov'.
|
|
*/
|
|
xm_write32(hw, port, XM_TX_EV_MSK, XMT_DEF_MSK);
|
|
|
|
/* Configure MAC arbiter */
|
|
skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
|
|
|
|
/* configure timeout values */
|
|
skge_write8(hw, B3_MA_TOINI_RX1, 72);
|
|
skge_write8(hw, B3_MA_TOINI_RX2, 72);
|
|
skge_write8(hw, B3_MA_TOINI_TX1, 72);
|
|
skge_write8(hw, B3_MA_TOINI_TX2, 72);
|
|
|
|
skge_write8(hw, B3_MA_RCINI_RX1, 0);
|
|
skge_write8(hw, B3_MA_RCINI_RX2, 0);
|
|
skge_write8(hw, B3_MA_RCINI_TX1, 0);
|
|
skge_write8(hw, B3_MA_RCINI_TX2, 0);
|
|
|
|
/* Configure Rx MAC FIFO */
|
|
skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR);
|
|
skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT);
|
|
skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD);
|
|
|
|
/* Configure Tx MAC FIFO */
|
|
skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR);
|
|
skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF);
|
|
skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD);
|
|
|
|
if (jumbo) {
|
|
/* Enable frame flushing if jumbo frames used */
|
|
skge_write16(hw, SK_REG(port,RX_MFF_CTRL1), MFF_ENA_FLUSH);
|
|
} else {
|
|
/* enable timeout timers if normal frames */
|
|
skge_write16(hw, B3_PA_CTRL,
|
|
(port == 0) ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2);
|
|
}
|
|
}
|
|
|
|
static void genesis_stop(struct skge_port *skge)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
unsigned retries = 1000;
|
|
u16 cmd;
|
|
|
|
/* Disable Tx and Rx */
|
|
cmd = xm_read16(hw, port, XM_MMU_CMD);
|
|
cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX);
|
|
xm_write16(hw, port, XM_MMU_CMD, cmd);
|
|
|
|
genesis_reset(hw, port);
|
|
|
|
/* Clear Tx packet arbiter timeout IRQ */
|
|
skge_write16(hw, B3_PA_CTRL,
|
|
port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2);
|
|
|
|
/* Reset the MAC */
|
|
skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
|
|
do {
|
|
skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST);
|
|
if (!(skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST))
|
|
break;
|
|
} while (--retries > 0);
|
|
|
|
/* For external PHYs there must be special handling */
|
|
if (hw->phy_type != SK_PHY_XMAC) {
|
|
u32 reg = skge_read32(hw, B2_GP_IO);
|
|
if (port == 0) {
|
|
reg |= GP_DIR_0;
|
|
reg &= ~GP_IO_0;
|
|
} else {
|
|
reg |= GP_DIR_2;
|
|
reg &= ~GP_IO_2;
|
|
}
|
|
skge_write32(hw, B2_GP_IO, reg);
|
|
skge_read32(hw, B2_GP_IO);
|
|
}
|
|
|
|
xm_write16(hw, port, XM_MMU_CMD,
|
|
xm_read16(hw, port, XM_MMU_CMD)
|
|
& ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
|
|
|
|
xm_read16(hw, port, XM_MMU_CMD);
|
|
}
|
|
|
|
|
|
static void genesis_get_stats(struct skge_port *skge, u64 *data)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
int i;
|
|
unsigned long timeout = jiffies + HZ;
|
|
|
|
xm_write16(hw, port,
|
|
XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC);
|
|
|
|
/* wait for update to complete */
|
|
while (xm_read16(hw, port, XM_STAT_CMD)
|
|
& (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) {
|
|
if (time_after(jiffies, timeout))
|
|
break;
|
|
udelay(10);
|
|
}
|
|
|
|
/* special case for 64 bit octet counter */
|
|
data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32
|
|
| xm_read32(hw, port, XM_TXO_OK_LO);
|
|
data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32
|
|
| xm_read32(hw, port, XM_RXO_OK_LO);
|
|
|
|
for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
|
|
data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset);
|
|
}
|
|
|
|
static void genesis_mac_intr(struct skge_hw *hw, int port)
|
|
{
|
|
struct net_device *dev = hw->dev[port];
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
u16 status = xm_read16(hw, port, XM_ISRC);
|
|
|
|
if (netif_msg_intr(skge))
|
|
printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n",
|
|
dev->name, status);
|
|
|
|
if (hw->phy_type == SK_PHY_XMAC && (status & XM_IS_INP_ASS)) {
|
|
xm_link_down(hw, port);
|
|
mod_timer(&skge->link_timer, jiffies + 1);
|
|
}
|
|
|
|
if (status & XM_IS_TXF_UR) {
|
|
xm_write32(hw, port, XM_MODE, XM_MD_FTF);
|
|
++dev->stats.tx_fifo_errors;
|
|
}
|
|
}
|
|
|
|
static void genesis_link_up(struct skge_port *skge)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
u16 cmd, msk;
|
|
u32 mode;
|
|
|
|
cmd = xm_read16(hw, port, XM_MMU_CMD);
|
|
|
|
/*
|
|
* enabling pause frame reception is required for 1000BT
|
|
* because the XMAC is not reset if the link is going down
|
|
*/
|
|
if (skge->flow_status == FLOW_STAT_NONE ||
|
|
skge->flow_status == FLOW_STAT_LOC_SEND)
|
|
/* Disable Pause Frame Reception */
|
|
cmd |= XM_MMU_IGN_PF;
|
|
else
|
|
/* Enable Pause Frame Reception */
|
|
cmd &= ~XM_MMU_IGN_PF;
|
|
|
|
xm_write16(hw, port, XM_MMU_CMD, cmd);
|
|
|
|
mode = xm_read32(hw, port, XM_MODE);
|
|
if (skge->flow_status== FLOW_STAT_SYMMETRIC ||
|
|
skge->flow_status == FLOW_STAT_LOC_SEND) {
|
|
/*
|
|
* Configure Pause Frame Generation
|
|
* Use internal and external Pause Frame Generation.
|
|
* Sending pause frames is edge triggered.
|
|
* Send a Pause frame with the maximum pause time if
|
|
* internal oder external FIFO full condition occurs.
|
|
* Send a zero pause time frame to re-start transmission.
|
|
*/
|
|
/* XM_PAUSE_DA = '010000C28001' (default) */
|
|
/* XM_MAC_PTIME = 0xffff (maximum) */
|
|
/* remember this value is defined in big endian (!) */
|
|
xm_write16(hw, port, XM_MAC_PTIME, 0xffff);
|
|
|
|
mode |= XM_PAUSE_MODE;
|
|
skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE);
|
|
} else {
|
|
/*
|
|
* disable pause frame generation is required for 1000BT
|
|
* because the XMAC is not reset if the link is going down
|
|
*/
|
|
/* Disable Pause Mode in Mode Register */
|
|
mode &= ~XM_PAUSE_MODE;
|
|
|
|
skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE);
|
|
}
|
|
|
|
xm_write32(hw, port, XM_MODE, mode);
|
|
|
|
/* Turn on detection of Tx underrun */
|
|
msk = xm_read16(hw, port, XM_IMSK);
|
|
msk &= ~XM_IS_TXF_UR;
|
|
xm_write16(hw, port, XM_IMSK, msk);
|
|
|
|
xm_read16(hw, port, XM_ISRC);
|
|
|
|
/* get MMU Command Reg. */
|
|
cmd = xm_read16(hw, port, XM_MMU_CMD);
|
|
if (hw->phy_type != SK_PHY_XMAC && skge->duplex == DUPLEX_FULL)
|
|
cmd |= XM_MMU_GMII_FD;
|
|
|
|
/*
|
|
* Workaround BCOM Errata (#10523) for all BCom Phys
|
|
* Enable Power Management after link up
|
|
*/
|
|
if (hw->phy_type == SK_PHY_BCOM) {
|
|
xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
|
|
xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL)
|
|
& ~PHY_B_AC_DIS_PM);
|
|
xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
|
|
}
|
|
|
|
/* enable Rx/Tx */
|
|
xm_write16(hw, port, XM_MMU_CMD,
|
|
cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX);
|
|
skge_link_up(skge);
|
|
}
|
|
|
|
|
|
static inline void bcom_phy_intr(struct skge_port *skge)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
u16 isrc;
|
|
|
|
isrc = xm_phy_read(hw, port, PHY_BCOM_INT_STAT);
|
|
if (netif_msg_intr(skge))
|
|
printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x\n",
|
|
skge->netdev->name, isrc);
|
|
|
|
if (isrc & PHY_B_IS_PSE)
|
|
printk(KERN_ERR PFX "%s: uncorrectable pair swap error\n",
|
|
hw->dev[port]->name);
|
|
|
|
/* Workaround BCom Errata:
|
|
* enable and disable loopback mode if "NO HCD" occurs.
|
|
*/
|
|
if (isrc & PHY_B_IS_NO_HDCL) {
|
|
u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL);
|
|
xm_phy_write(hw, port, PHY_BCOM_CTRL,
|
|
ctrl | PHY_CT_LOOP);
|
|
xm_phy_write(hw, port, PHY_BCOM_CTRL,
|
|
ctrl & ~PHY_CT_LOOP);
|
|
}
|
|
|
|
if (isrc & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE))
|
|
bcom_check_link(hw, port);
|
|
|
|
}
|
|
|
|
static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
|
|
{
|
|
int i;
|
|
|
|
gma_write16(hw, port, GM_SMI_DATA, val);
|
|
gma_write16(hw, port, GM_SMI_CTRL,
|
|
GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg));
|
|
for (i = 0; i < PHY_RETRIES; i++) {
|
|
udelay(1);
|
|
|
|
if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
|
|
return 0;
|
|
}
|
|
|
|
printk(KERN_WARNING PFX "%s: phy write timeout\n",
|
|
hw->dev[port]->name);
|
|
return -EIO;
|
|
}
|
|
|
|
static int __gm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
|
|
{
|
|
int i;
|
|
|
|
gma_write16(hw, port, GM_SMI_CTRL,
|
|
GM_SMI_CT_PHY_AD(hw->phy_addr)
|
|
| GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
|
|
|
|
for (i = 0; i < PHY_RETRIES; i++) {
|
|
udelay(1);
|
|
if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL)
|
|
goto ready;
|
|
}
|
|
|
|
return -ETIMEDOUT;
|
|
ready:
|
|
*val = gma_read16(hw, port, GM_SMI_DATA);
|
|
return 0;
|
|
}
|
|
|
|
static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg)
|
|
{
|
|
u16 v = 0;
|
|
if (__gm_phy_read(hw, port, reg, &v))
|
|
printk(KERN_WARNING PFX "%s: phy read timeout\n",
|
|
hw->dev[port]->name);
|
|
return v;
|
|
}
|
|
|
|
/* Marvell Phy Initialization */
|
|
static void yukon_init(struct skge_hw *hw, int port)
|
|
{
|
|
struct skge_port *skge = netdev_priv(hw->dev[port]);
|
|
u16 ctrl, ct1000, adv;
|
|
|
|
if (skge->autoneg == AUTONEG_ENABLE) {
|
|
u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
|
|
|
|
ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
|
|
PHY_M_EC_MAC_S_MSK);
|
|
ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
|
|
|
|
ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
|
|
|
|
gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
|
|
}
|
|
|
|
ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
|
|
if (skge->autoneg == AUTONEG_DISABLE)
|
|
ctrl &= ~PHY_CT_ANE;
|
|
|
|
ctrl |= PHY_CT_RESET;
|
|
gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
|
|
|
|
ctrl = 0;
|
|
ct1000 = 0;
|
|
adv = PHY_AN_CSMA;
|
|
|
|
if (skge->autoneg == AUTONEG_ENABLE) {
|
|
if (hw->copper) {
|
|
if (skge->advertising & ADVERTISED_1000baseT_Full)
|
|
ct1000 |= PHY_M_1000C_AFD;
|
|
if (skge->advertising & ADVERTISED_1000baseT_Half)
|
|
ct1000 |= PHY_M_1000C_AHD;
|
|
if (skge->advertising & ADVERTISED_100baseT_Full)
|
|
adv |= PHY_M_AN_100_FD;
|
|
if (skge->advertising & ADVERTISED_100baseT_Half)
|
|
adv |= PHY_M_AN_100_HD;
|
|
if (skge->advertising & ADVERTISED_10baseT_Full)
|
|
adv |= PHY_M_AN_10_FD;
|
|
if (skge->advertising & ADVERTISED_10baseT_Half)
|
|
adv |= PHY_M_AN_10_HD;
|
|
|
|
/* Set Flow-control capabilities */
|
|
adv |= phy_pause_map[skge->flow_control];
|
|
} else {
|
|
if (skge->advertising & ADVERTISED_1000baseT_Full)
|
|
adv |= PHY_M_AN_1000X_AFD;
|
|
if (skge->advertising & ADVERTISED_1000baseT_Half)
|
|
adv |= PHY_M_AN_1000X_AHD;
|
|
|
|
adv |= fiber_pause_map[skge->flow_control];
|
|
}
|
|
|
|
/* Restart Auto-negotiation */
|
|
ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
|
|
} else {
|
|
/* forced speed/duplex settings */
|
|
ct1000 = PHY_M_1000C_MSE;
|
|
|
|
if (skge->duplex == DUPLEX_FULL)
|
|
ctrl |= PHY_CT_DUP_MD;
|
|
|
|
switch (skge->speed) {
|
|
case SPEED_1000:
|
|
ctrl |= PHY_CT_SP1000;
|
|
break;
|
|
case SPEED_100:
|
|
ctrl |= PHY_CT_SP100;
|
|
break;
|
|
}
|
|
|
|
ctrl |= PHY_CT_RESET;
|
|
}
|
|
|
|
gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
|
|
|
|
gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
|
|
gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
|
|
|
|
/* Enable phy interrupt on autonegotiation complete (or link up) */
|
|
if (skge->autoneg == AUTONEG_ENABLE)
|
|
gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_MSK);
|
|
else
|
|
gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
|
|
}
|
|
|
|
static void yukon_reset(struct skge_hw *hw, int port)
|
|
{
|
|
gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */
|
|
gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
|
|
gma_write16(hw, port, GM_MC_ADDR_H2, 0);
|
|
gma_write16(hw, port, GM_MC_ADDR_H3, 0);
|
|
gma_write16(hw, port, GM_MC_ADDR_H4, 0);
|
|
|
|
gma_write16(hw, port, GM_RX_CTRL,
|
|
gma_read16(hw, port, GM_RX_CTRL)
|
|
| GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
|
|
}
|
|
|
|
/* Apparently, early versions of Yukon-Lite had wrong chip_id? */
|
|
static int is_yukon_lite_a0(struct skge_hw *hw)
|
|
{
|
|
u32 reg;
|
|
int ret;
|
|
|
|
if (hw->chip_id != CHIP_ID_YUKON)
|
|
return 0;
|
|
|
|
reg = skge_read32(hw, B2_FAR);
|
|
skge_write8(hw, B2_FAR + 3, 0xff);
|
|
ret = (skge_read8(hw, B2_FAR + 3) != 0);
|
|
skge_write32(hw, B2_FAR, reg);
|
|
return ret;
|
|
}
|
|
|
|
static void yukon_mac_init(struct skge_hw *hw, int port)
|
|
{
|
|
struct skge_port *skge = netdev_priv(hw->dev[port]);
|
|
int i;
|
|
u32 reg;
|
|
const u8 *addr = hw->dev[port]->dev_addr;
|
|
|
|
/* WA code for COMA mode -- set PHY reset */
|
|
if (hw->chip_id == CHIP_ID_YUKON_LITE &&
|
|
hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
|
|
reg = skge_read32(hw, B2_GP_IO);
|
|
reg |= GP_DIR_9 | GP_IO_9;
|
|
skge_write32(hw, B2_GP_IO, reg);
|
|
}
|
|
|
|
/* hard reset */
|
|
skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
|
|
skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
|
|
|
|
/* WA code for COMA mode -- clear PHY reset */
|
|
if (hw->chip_id == CHIP_ID_YUKON_LITE &&
|
|
hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
|
|
reg = skge_read32(hw, B2_GP_IO);
|
|
reg |= GP_DIR_9;
|
|
reg &= ~GP_IO_9;
|
|
skge_write32(hw, B2_GP_IO, reg);
|
|
}
|
|
|
|
/* Set hardware config mode */
|
|
reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP |
|
|
GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE;
|
|
reg |= hw->copper ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB;
|
|
|
|
/* Clear GMC reset */
|
|
skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET);
|
|
skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR);
|
|
skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR);
|
|
|
|
if (skge->autoneg == AUTONEG_DISABLE) {
|
|
reg = GM_GPCR_AU_ALL_DIS;
|
|
gma_write16(hw, port, GM_GP_CTRL,
|
|
gma_read16(hw, port, GM_GP_CTRL) | reg);
|
|
|
|
switch (skge->speed) {
|
|
case SPEED_1000:
|
|
reg &= ~GM_GPCR_SPEED_100;
|
|
reg |= GM_GPCR_SPEED_1000;
|
|
break;
|
|
case SPEED_100:
|
|
reg &= ~GM_GPCR_SPEED_1000;
|
|
reg |= GM_GPCR_SPEED_100;
|
|
break;
|
|
case SPEED_10:
|
|
reg &= ~(GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100);
|
|
break;
|
|
}
|
|
|
|
if (skge->duplex == DUPLEX_FULL)
|
|
reg |= GM_GPCR_DUP_FULL;
|
|
} else
|
|
reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
|
|
|
|
switch (skge->flow_control) {
|
|
case FLOW_MODE_NONE:
|
|
skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
|
|
reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
|
|
break;
|
|
case FLOW_MODE_LOC_SEND:
|
|
/* disable Rx flow-control */
|
|
reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
|
|
break;
|
|
case FLOW_MODE_SYMMETRIC:
|
|
case FLOW_MODE_SYM_OR_REM:
|
|
/* enable Tx & Rx flow-control */
|
|
break;
|
|
}
|
|
|
|
gma_write16(hw, port, GM_GP_CTRL, reg);
|
|
skge_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
|
|
|
|
yukon_init(hw, port);
|
|
|
|
/* MIB clear */
|
|
reg = gma_read16(hw, port, GM_PHY_ADDR);
|
|
gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
|
|
|
|
for (i = 0; i < GM_MIB_CNT_SIZE; i++)
|
|
gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i);
|
|
gma_write16(hw, port, GM_PHY_ADDR, reg);
|
|
|
|
/* transmit control */
|
|
gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
|
|
|
|
/* receive control reg: unicast + multicast + no FCS */
|
|
gma_write16(hw, port, GM_RX_CTRL,
|
|
GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
|
|
|
|
/* transmit flow control */
|
|
gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
|
|
|
|
/* transmit parameter */
|
|
gma_write16(hw, port, GM_TX_PARAM,
|
|
TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
|
|
TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
|
|
TX_IPG_JAM_DATA(TX_IPG_JAM_DEF));
|
|
|
|
/* configure the Serial Mode Register */
|
|
reg = DATA_BLIND_VAL(DATA_BLIND_DEF)
|
|
| GM_SMOD_VLAN_ENA
|
|
| IPG_DATA_VAL(IPG_DATA_DEF);
|
|
|
|
if (hw->dev[port]->mtu > ETH_DATA_LEN)
|
|
reg |= GM_SMOD_JUMBO_ENA;
|
|
|
|
gma_write16(hw, port, GM_SERIAL_MODE, reg);
|
|
|
|
/* physical address: used for pause frames */
|
|
gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
|
|
/* virtual address for data */
|
|
gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
|
|
|
|
/* enable interrupt mask for counter overflows */
|
|
gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
|
|
gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
|
|
gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
|
|
|
|
/* Initialize Mac Fifo */
|
|
|
|
/* Configure Rx MAC FIFO */
|
|
skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK);
|
|
reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
|
|
|
|
/* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */
|
|
if (is_yukon_lite_a0(hw))
|
|
reg &= ~GMF_RX_F_FL_ON;
|
|
|
|
skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
|
|
skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg);
|
|
/*
|
|
* because Pause Packet Truncation in GMAC is not working
|
|
* we have to increase the Flush Threshold to 64 bytes
|
|
* in order to flush pause packets in Rx FIFO on Yukon-1
|
|
*/
|
|
skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1);
|
|
|
|
/* Configure Tx MAC FIFO */
|
|
skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
|
|
skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
|
|
}
|
|
|
|
/* Go into power down mode */
|
|
static void yukon_suspend(struct skge_hw *hw, int port)
|
|
{
|
|
u16 ctrl;
|
|
|
|
ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
|
|
ctrl |= PHY_M_PC_POL_R_DIS;
|
|
gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
|
|
|
|
ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
|
|
ctrl |= PHY_CT_RESET;
|
|
gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
|
|
|
|
/* switch IEEE compatible power down mode on */
|
|
ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
|
|
ctrl |= PHY_CT_PDOWN;
|
|
gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
|
|
}
|
|
|
|
static void yukon_stop(struct skge_port *skge)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
|
|
skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
|
|
yukon_reset(hw, port);
|
|
|
|
gma_write16(hw, port, GM_GP_CTRL,
|
|
gma_read16(hw, port, GM_GP_CTRL)
|
|
& ~(GM_GPCR_TX_ENA|GM_GPCR_RX_ENA));
|
|
gma_read16(hw, port, GM_GP_CTRL);
|
|
|
|
yukon_suspend(hw, port);
|
|
|
|
/* set GPHY Control reset */
|
|
skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
|
|
skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
|
|
}
|
|
|
|
static void yukon_get_stats(struct skge_port *skge, u64 *data)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
int i;
|
|
|
|
data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
|
|
| gma_read32(hw, port, GM_TXO_OK_LO);
|
|
data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
|
|
| gma_read32(hw, port, GM_RXO_OK_LO);
|
|
|
|
for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
|
|
data[i] = gma_read32(hw, port,
|
|
skge_stats[i].gma_offset);
|
|
}
|
|
|
|
static void yukon_mac_intr(struct skge_hw *hw, int port)
|
|
{
|
|
struct net_device *dev = hw->dev[port];
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
|
|
|
|
if (netif_msg_intr(skge))
|
|
printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n",
|
|
dev->name, status);
|
|
|
|
if (status & GM_IS_RX_FF_OR) {
|
|
++dev->stats.rx_fifo_errors;
|
|
skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
|
|
}
|
|
|
|
if (status & GM_IS_TX_FF_UR) {
|
|
++dev->stats.tx_fifo_errors;
|
|
skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
|
|
}
|
|
|
|
}
|
|
|
|
static u16 yukon_speed(const struct skge_hw *hw, u16 aux)
|
|
{
|
|
switch (aux & PHY_M_PS_SPEED_MSK) {
|
|
case PHY_M_PS_SPEED_1000:
|
|
return SPEED_1000;
|
|
case PHY_M_PS_SPEED_100:
|
|
return SPEED_100;
|
|
default:
|
|
return SPEED_10;
|
|
}
|
|
}
|
|
|
|
static void yukon_link_up(struct skge_port *skge)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
u16 reg;
|
|
|
|
/* Enable Transmit FIFO Underrun */
|
|
skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
|
|
|
|
reg = gma_read16(hw, port, GM_GP_CTRL);
|
|
if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE)
|
|
reg |= GM_GPCR_DUP_FULL;
|
|
|
|
/* enable Rx/Tx */
|
|
reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
|
|
gma_write16(hw, port, GM_GP_CTRL, reg);
|
|
|
|
gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
|
|
skge_link_up(skge);
|
|
}
|
|
|
|
static void yukon_link_down(struct skge_port *skge)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
u16 ctrl;
|
|
|
|
ctrl = gma_read16(hw, port, GM_GP_CTRL);
|
|
ctrl &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
|
|
gma_write16(hw, port, GM_GP_CTRL, ctrl);
|
|
|
|
if (skge->flow_status == FLOW_STAT_REM_SEND) {
|
|
ctrl = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV);
|
|
ctrl |= PHY_M_AN_ASP;
|
|
/* restore Asymmetric Pause bit */
|
|
gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, ctrl);
|
|
}
|
|
|
|
skge_link_down(skge);
|
|
|
|
yukon_init(hw, port);
|
|
}
|
|
|
|
static void yukon_phy_intr(struct skge_port *skge)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
const char *reason = NULL;
|
|
u16 istatus, phystat;
|
|
|
|
istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
|
|
phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
|
|
|
|
if (netif_msg_intr(skge))
|
|
printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x 0x%x\n",
|
|
skge->netdev->name, istatus, phystat);
|
|
|
|
if (istatus & PHY_M_IS_AN_COMPL) {
|
|
if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP)
|
|
& PHY_M_AN_RF) {
|
|
reason = "remote fault";
|
|
goto failed;
|
|
}
|
|
|
|
if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) {
|
|
reason = "master/slave fault";
|
|
goto failed;
|
|
}
|
|
|
|
if (!(phystat & PHY_M_PS_SPDUP_RES)) {
|
|
reason = "speed/duplex";
|
|
goto failed;
|
|
}
|
|
|
|
skge->duplex = (phystat & PHY_M_PS_FULL_DUP)
|
|
? DUPLEX_FULL : DUPLEX_HALF;
|
|
skge->speed = yukon_speed(hw, phystat);
|
|
|
|
/* We are using IEEE 802.3z/D5.0 Table 37-4 */
|
|
switch (phystat & PHY_M_PS_PAUSE_MSK) {
|
|
case PHY_M_PS_PAUSE_MSK:
|
|
skge->flow_status = FLOW_STAT_SYMMETRIC;
|
|
break;
|
|
case PHY_M_PS_RX_P_EN:
|
|
skge->flow_status = FLOW_STAT_REM_SEND;
|
|
break;
|
|
case PHY_M_PS_TX_P_EN:
|
|
skge->flow_status = FLOW_STAT_LOC_SEND;
|
|
break;
|
|
default:
|
|
skge->flow_status = FLOW_STAT_NONE;
|
|
}
|
|
|
|
if (skge->flow_status == FLOW_STAT_NONE ||
|
|
(skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF))
|
|
skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
|
|
else
|
|
skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
|
|
yukon_link_up(skge);
|
|
return;
|
|
}
|
|
|
|
if (istatus & PHY_M_IS_LSP_CHANGE)
|
|
skge->speed = yukon_speed(hw, phystat);
|
|
|
|
if (istatus & PHY_M_IS_DUP_CHANGE)
|
|
skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
|
|
if (istatus & PHY_M_IS_LST_CHANGE) {
|
|
if (phystat & PHY_M_PS_LINK_UP)
|
|
yukon_link_up(skge);
|
|
else
|
|
yukon_link_down(skge);
|
|
}
|
|
return;
|
|
failed:
|
|
printk(KERN_ERR PFX "%s: autonegotiation failed (%s)\n",
|
|
skge->netdev->name, reason);
|
|
|
|
/* XXX restart autonegotiation? */
|
|
}
|
|
|
|
static void skge_phy_reset(struct skge_port *skge)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
struct net_device *dev = hw->dev[port];
|
|
|
|
netif_stop_queue(skge->netdev);
|
|
netif_carrier_off(skge->netdev);
|
|
|
|
spin_lock_bh(&hw->phy_lock);
|
|
if (hw->chip_id == CHIP_ID_GENESIS) {
|
|
genesis_reset(hw, port);
|
|
genesis_mac_init(hw, port);
|
|
} else {
|
|
yukon_reset(hw, port);
|
|
yukon_init(hw, port);
|
|
}
|
|
spin_unlock_bh(&hw->phy_lock);
|
|
|
|
skge_set_multicast(dev);
|
|
}
|
|
|
|
/* Basic MII support */
|
|
static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
|
|
{
|
|
struct mii_ioctl_data *data = if_mii(ifr);
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
int err = -EOPNOTSUPP;
|
|
|
|
if (!netif_running(dev))
|
|
return -ENODEV; /* Phy still in reset */
|
|
|
|
switch(cmd) {
|
|
case SIOCGMIIPHY:
|
|
data->phy_id = hw->phy_addr;
|
|
|
|
/* fallthru */
|
|
case SIOCGMIIREG: {
|
|
u16 val = 0;
|
|
spin_lock_bh(&hw->phy_lock);
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
err = __xm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
|
|
else
|
|
err = __gm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
|
|
spin_unlock_bh(&hw->phy_lock);
|
|
data->val_out = val;
|
|
break;
|
|
}
|
|
|
|
case SIOCSMIIREG:
|
|
if (!capable(CAP_NET_ADMIN))
|
|
return -EPERM;
|
|
|
|
spin_lock_bh(&hw->phy_lock);
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
err = xm_phy_write(hw, skge->port, data->reg_num & 0x1f,
|
|
data->val_in);
|
|
else
|
|
err = gm_phy_write(hw, skge->port, data->reg_num & 0x1f,
|
|
data->val_in);
|
|
spin_unlock_bh(&hw->phy_lock);
|
|
break;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len)
|
|
{
|
|
u32 end;
|
|
|
|
start /= 8;
|
|
len /= 8;
|
|
end = start + len - 1;
|
|
|
|
skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
|
|
skge_write32(hw, RB_ADDR(q, RB_START), start);
|
|
skge_write32(hw, RB_ADDR(q, RB_WP), start);
|
|
skge_write32(hw, RB_ADDR(q, RB_RP), start);
|
|
skge_write32(hw, RB_ADDR(q, RB_END), end);
|
|
|
|
if (q == Q_R1 || q == Q_R2) {
|
|
/* Set thresholds on receive queue's */
|
|
skge_write32(hw, RB_ADDR(q, RB_RX_UTPP),
|
|
start + (2*len)/3);
|
|
skge_write32(hw, RB_ADDR(q, RB_RX_LTPP),
|
|
start + (len/3));
|
|
} else {
|
|
/* Enable store & forward on Tx queue's because
|
|
* Tx FIFO is only 4K on Genesis and 1K on Yukon
|
|
*/
|
|
skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
|
|
}
|
|
|
|
skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
|
|
}
|
|
|
|
/* Setup Bus Memory Interface */
|
|
static void skge_qset(struct skge_port *skge, u16 q,
|
|
const struct skge_element *e)
|
|
{
|
|
struct skge_hw *hw = skge->hw;
|
|
u32 watermark = 0x600;
|
|
u64 base = skge->dma + (e->desc - skge->mem);
|
|
|
|
/* optimization to reduce window on 32bit/33mhz */
|
|
if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0)
|
|
watermark /= 2;
|
|
|
|
skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET);
|
|
skge_write32(hw, Q_ADDR(q, Q_F), watermark);
|
|
skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32));
|
|
skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base);
|
|
}
|
|
|
|
static int skge_up(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
u32 chunk, ram_addr;
|
|
size_t rx_size, tx_size;
|
|
int err;
|
|
|
|
if (!is_valid_ether_addr(dev->dev_addr))
|
|
return -EINVAL;
|
|
|
|
if (netif_msg_ifup(skge))
|
|
printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
|
|
|
|
if (dev->mtu > RX_BUF_SIZE)
|
|
skge->rx_buf_size = dev->mtu + ETH_HLEN;
|
|
else
|
|
skge->rx_buf_size = RX_BUF_SIZE;
|
|
|
|
|
|
rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc);
|
|
tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc);
|
|
skge->mem_size = tx_size + rx_size;
|
|
skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma);
|
|
if (!skge->mem)
|
|
return -ENOMEM;
|
|
|
|
BUG_ON(skge->dma & 7);
|
|
|
|
if ((u64)skge->dma >> 32 != ((u64) skge->dma + skge->mem_size) >> 32) {
|
|
dev_err(&hw->pdev->dev, "pci_alloc_consistent region crosses 4G boundary\n");
|
|
err = -EINVAL;
|
|
goto free_pci_mem;
|
|
}
|
|
|
|
memset(skge->mem, 0, skge->mem_size);
|
|
|
|
err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma);
|
|
if (err)
|
|
goto free_pci_mem;
|
|
|
|
err = skge_rx_fill(dev);
|
|
if (err)
|
|
goto free_rx_ring;
|
|
|
|
err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size,
|
|
skge->dma + rx_size);
|
|
if (err)
|
|
goto free_rx_ring;
|
|
|
|
/* Initialize MAC */
|
|
spin_lock_bh(&hw->phy_lock);
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
genesis_mac_init(hw, port);
|
|
else
|
|
yukon_mac_init(hw, port);
|
|
spin_unlock_bh(&hw->phy_lock);
|
|
|
|
/* Configure RAMbuffers - equally between ports and tx/rx */
|
|
chunk = (hw->ram_size - hw->ram_offset) / (hw->ports * 2);
|
|
ram_addr = hw->ram_offset + 2 * chunk * port;
|
|
|
|
skge_ramset(hw, rxqaddr[port], ram_addr, chunk);
|
|
skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean);
|
|
|
|
BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean);
|
|
skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk);
|
|
skge_qset(skge, txqaddr[port], skge->tx_ring.to_use);
|
|
|
|
/* Start receiver BMU */
|
|
wmb();
|
|
skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F);
|
|
skge_led(skge, LED_MODE_ON);
|
|
|
|
spin_lock_irq(&hw->hw_lock);
|
|
hw->intr_mask |= portmask[port];
|
|
skge_write32(hw, B0_IMSK, hw->intr_mask);
|
|
spin_unlock_irq(&hw->hw_lock);
|
|
|
|
napi_enable(&skge->napi);
|
|
return 0;
|
|
|
|
free_rx_ring:
|
|
skge_rx_clean(skge);
|
|
kfree(skge->rx_ring.start);
|
|
free_pci_mem:
|
|
pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
|
|
skge->mem = NULL;
|
|
|
|
return err;
|
|
}
|
|
|
|
/* stop receiver */
|
|
static void skge_rx_stop(struct skge_hw *hw, int port)
|
|
{
|
|
skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP);
|
|
skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL),
|
|
RB_RST_SET|RB_DIS_OP_MD);
|
|
skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET);
|
|
}
|
|
|
|
static int skge_down(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
|
|
if (skge->mem == NULL)
|
|
return 0;
|
|
|
|
if (netif_msg_ifdown(skge))
|
|
printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
|
|
|
|
netif_stop_queue(dev);
|
|
|
|
if (hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC)
|
|
del_timer_sync(&skge->link_timer);
|
|
|
|
napi_disable(&skge->napi);
|
|
netif_carrier_off(dev);
|
|
|
|
spin_lock_irq(&hw->hw_lock);
|
|
hw->intr_mask &= ~portmask[port];
|
|
skge_write32(hw, B0_IMSK, hw->intr_mask);
|
|
spin_unlock_irq(&hw->hw_lock);
|
|
|
|
skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
genesis_stop(skge);
|
|
else
|
|
yukon_stop(skge);
|
|
|
|
/* Stop transmitter */
|
|
skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP);
|
|
skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
|
|
RB_RST_SET|RB_DIS_OP_MD);
|
|
|
|
|
|
/* Disable Force Sync bit and Enable Alloc bit */
|
|
skge_write8(hw, SK_REG(port, TXA_CTRL),
|
|
TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
|
|
|
|
/* Stop Interval Timer and Limit Counter of Tx Arbiter */
|
|
skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
|
|
skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
|
|
|
|
/* Reset PCI FIFO */
|
|
skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET);
|
|
skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
|
|
|
|
/* Reset the RAM Buffer async Tx queue */
|
|
skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET);
|
|
|
|
skge_rx_stop(hw, port);
|
|
|
|
if (hw->chip_id == CHIP_ID_GENESIS) {
|
|
skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET);
|
|
skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET);
|
|
} else {
|
|
skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
|
|
skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
|
|
}
|
|
|
|
skge_led(skge, LED_MODE_OFF);
|
|
|
|
netif_tx_lock_bh(dev);
|
|
skge_tx_clean(dev);
|
|
netif_tx_unlock_bh(dev);
|
|
|
|
skge_rx_clean(skge);
|
|
|
|
kfree(skge->rx_ring.start);
|
|
kfree(skge->tx_ring.start);
|
|
pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
|
|
skge->mem = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static inline int skge_avail(const struct skge_ring *ring)
|
|
{
|
|
smp_mb();
|
|
return ((ring->to_clean > ring->to_use) ? 0 : ring->count)
|
|
+ (ring->to_clean - ring->to_use) - 1;
|
|
}
|
|
|
|
static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
struct skge_element *e;
|
|
struct skge_tx_desc *td;
|
|
int i;
|
|
u32 control, len;
|
|
u64 map;
|
|
|
|
if (skb_padto(skb, ETH_ZLEN))
|
|
return NETDEV_TX_OK;
|
|
|
|
if (unlikely(skge_avail(&skge->tx_ring) < skb_shinfo(skb)->nr_frags + 1))
|
|
return NETDEV_TX_BUSY;
|
|
|
|
e = skge->tx_ring.to_use;
|
|
td = e->desc;
|
|
BUG_ON(td->control & BMU_OWN);
|
|
e->skb = skb;
|
|
len = skb_headlen(skb);
|
|
map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
|
|
pci_unmap_addr_set(e, mapaddr, map);
|
|
pci_unmap_len_set(e, maplen, len);
|
|
|
|
td->dma_lo = map;
|
|
td->dma_hi = map >> 32;
|
|
|
|
if (skb->ip_summed == CHECKSUM_PARTIAL) {
|
|
const int offset = skb_transport_offset(skb);
|
|
|
|
/* This seems backwards, but it is what the sk98lin
|
|
* does. Looks like hardware is wrong?
|
|
*/
|
|
if (ipip_hdr(skb)->protocol == IPPROTO_UDP
|
|
&& hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON)
|
|
control = BMU_TCP_CHECK;
|
|
else
|
|
control = BMU_UDP_CHECK;
|
|
|
|
td->csum_offs = 0;
|
|
td->csum_start = offset;
|
|
td->csum_write = offset + skb->csum_offset;
|
|
} else
|
|
control = BMU_CHECK;
|
|
|
|
if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */
|
|
control |= BMU_EOF| BMU_IRQ_EOF;
|
|
else {
|
|
struct skge_tx_desc *tf = td;
|
|
|
|
control |= BMU_STFWD;
|
|
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
|
|
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
|
|
|
|
map = pci_map_page(hw->pdev, frag->page, frag->page_offset,
|
|
frag->size, PCI_DMA_TODEVICE);
|
|
|
|
e = e->next;
|
|
e->skb = skb;
|
|
tf = e->desc;
|
|
BUG_ON(tf->control & BMU_OWN);
|
|
|
|
tf->dma_lo = map;
|
|
tf->dma_hi = (u64) map >> 32;
|
|
pci_unmap_addr_set(e, mapaddr, map);
|
|
pci_unmap_len_set(e, maplen, frag->size);
|
|
|
|
tf->control = BMU_OWN | BMU_SW | control | frag->size;
|
|
}
|
|
tf->control |= BMU_EOF | BMU_IRQ_EOF;
|
|
}
|
|
/* Make sure all the descriptors written */
|
|
wmb();
|
|
td->control = BMU_OWN | BMU_SW | BMU_STF | control | len;
|
|
wmb();
|
|
|
|
skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START);
|
|
|
|
if (unlikely(netif_msg_tx_queued(skge)))
|
|
printk(KERN_DEBUG "%s: tx queued, slot %td, len %d\n",
|
|
dev->name, e - skge->tx_ring.start, skb->len);
|
|
|
|
skge->tx_ring.to_use = e->next;
|
|
smp_wmb();
|
|
|
|
if (skge_avail(&skge->tx_ring) <= TX_LOW_WATER) {
|
|
pr_debug("%s: transmit queue full\n", dev->name);
|
|
netif_stop_queue(dev);
|
|
}
|
|
|
|
dev->trans_start = jiffies;
|
|
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
|
|
/* Free resources associated with this reing element */
|
|
static void skge_tx_free(struct skge_port *skge, struct skge_element *e,
|
|
u32 control)
|
|
{
|
|
struct pci_dev *pdev = skge->hw->pdev;
|
|
|
|
/* skb header vs. fragment */
|
|
if (control & BMU_STF)
|
|
pci_unmap_single(pdev, pci_unmap_addr(e, mapaddr),
|
|
pci_unmap_len(e, maplen),
|
|
PCI_DMA_TODEVICE);
|
|
else
|
|
pci_unmap_page(pdev, pci_unmap_addr(e, mapaddr),
|
|
pci_unmap_len(e, maplen),
|
|
PCI_DMA_TODEVICE);
|
|
|
|
if (control & BMU_EOF) {
|
|
if (unlikely(netif_msg_tx_done(skge)))
|
|
printk(KERN_DEBUG PFX "%s: tx done slot %td\n",
|
|
skge->netdev->name, e - skge->tx_ring.start);
|
|
|
|
dev_kfree_skb(e->skb);
|
|
}
|
|
}
|
|
|
|
/* Free all buffers in transmit ring */
|
|
static void skge_tx_clean(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_element *e;
|
|
|
|
for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) {
|
|
struct skge_tx_desc *td = e->desc;
|
|
skge_tx_free(skge, e, td->control);
|
|
td->control = 0;
|
|
}
|
|
|
|
skge->tx_ring.to_clean = e;
|
|
netif_wake_queue(dev);
|
|
}
|
|
|
|
static void skge_tx_timeout(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
if (netif_msg_timer(skge))
|
|
printk(KERN_DEBUG PFX "%s: tx timeout\n", dev->name);
|
|
|
|
skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP);
|
|
skge_tx_clean(dev);
|
|
}
|
|
|
|
static int skge_change_mtu(struct net_device *dev, int new_mtu)
|
|
{
|
|
int err;
|
|
|
|
if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
|
|
return -EINVAL;
|
|
|
|
if (!netif_running(dev)) {
|
|
dev->mtu = new_mtu;
|
|
return 0;
|
|
}
|
|
|
|
skge_down(dev);
|
|
|
|
dev->mtu = new_mtu;
|
|
|
|
err = skge_up(dev);
|
|
if (err)
|
|
dev_close(dev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 };
|
|
|
|
static void genesis_add_filter(u8 filter[8], const u8 *addr)
|
|
{
|
|
u32 crc, bit;
|
|
|
|
crc = ether_crc_le(ETH_ALEN, addr);
|
|
bit = ~crc & 0x3f;
|
|
filter[bit/8] |= 1 << (bit%8);
|
|
}
|
|
|
|
static void genesis_set_multicast(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
int i, count = dev->mc_count;
|
|
struct dev_mc_list *list = dev->mc_list;
|
|
u32 mode;
|
|
u8 filter[8];
|
|
|
|
mode = xm_read32(hw, port, XM_MODE);
|
|
mode |= XM_MD_ENA_HASH;
|
|
if (dev->flags & IFF_PROMISC)
|
|
mode |= XM_MD_ENA_PROM;
|
|
else
|
|
mode &= ~XM_MD_ENA_PROM;
|
|
|
|
if (dev->flags & IFF_ALLMULTI)
|
|
memset(filter, 0xff, sizeof(filter));
|
|
else {
|
|
memset(filter, 0, sizeof(filter));
|
|
|
|
if (skge->flow_status == FLOW_STAT_REM_SEND
|
|
|| skge->flow_status == FLOW_STAT_SYMMETRIC)
|
|
genesis_add_filter(filter, pause_mc_addr);
|
|
|
|
for (i = 0; list && i < count; i++, list = list->next)
|
|
genesis_add_filter(filter, list->dmi_addr);
|
|
}
|
|
|
|
xm_write32(hw, port, XM_MODE, mode);
|
|
xm_outhash(hw, port, XM_HSM, filter);
|
|
}
|
|
|
|
static void yukon_add_filter(u8 filter[8], const u8 *addr)
|
|
{
|
|
u32 bit = ether_crc(ETH_ALEN, addr) & 0x3f;
|
|
filter[bit/8] |= 1 << (bit%8);
|
|
}
|
|
|
|
static void yukon_set_multicast(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
int port = skge->port;
|
|
struct dev_mc_list *list = dev->mc_list;
|
|
int rx_pause = (skge->flow_status == FLOW_STAT_REM_SEND
|
|
|| skge->flow_status == FLOW_STAT_SYMMETRIC);
|
|
u16 reg;
|
|
u8 filter[8];
|
|
|
|
memset(filter, 0, sizeof(filter));
|
|
|
|
reg = gma_read16(hw, port, GM_RX_CTRL);
|
|
reg |= GM_RXCR_UCF_ENA;
|
|
|
|
if (dev->flags & IFF_PROMISC) /* promiscuous */
|
|
reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
|
|
else if (dev->flags & IFF_ALLMULTI) /* all multicast */
|
|
memset(filter, 0xff, sizeof(filter));
|
|
else if (dev->mc_count == 0 && !rx_pause)/* no multicast */
|
|
reg &= ~GM_RXCR_MCF_ENA;
|
|
else {
|
|
int i;
|
|
reg |= GM_RXCR_MCF_ENA;
|
|
|
|
if (rx_pause)
|
|
yukon_add_filter(filter, pause_mc_addr);
|
|
|
|
for (i = 0; list && i < dev->mc_count; i++, list = list->next)
|
|
yukon_add_filter(filter, list->dmi_addr);
|
|
}
|
|
|
|
|
|
gma_write16(hw, port, GM_MC_ADDR_H1,
|
|
(u16)filter[0] | ((u16)filter[1] << 8));
|
|
gma_write16(hw, port, GM_MC_ADDR_H2,
|
|
(u16)filter[2] | ((u16)filter[3] << 8));
|
|
gma_write16(hw, port, GM_MC_ADDR_H3,
|
|
(u16)filter[4] | ((u16)filter[5] << 8));
|
|
gma_write16(hw, port, GM_MC_ADDR_H4,
|
|
(u16)filter[6] | ((u16)filter[7] << 8));
|
|
|
|
gma_write16(hw, port, GM_RX_CTRL, reg);
|
|
}
|
|
|
|
static inline u16 phy_length(const struct skge_hw *hw, u32 status)
|
|
{
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
return status >> XMR_FS_LEN_SHIFT;
|
|
else
|
|
return status >> GMR_FS_LEN_SHIFT;
|
|
}
|
|
|
|
static inline int bad_phy_status(const struct skge_hw *hw, u32 status)
|
|
{
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0;
|
|
else
|
|
return (status & GMR_FS_ANY_ERR) ||
|
|
(status & GMR_FS_RX_OK) == 0;
|
|
}
|
|
|
|
static void skge_set_multicast(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
genesis_set_multicast(dev);
|
|
else
|
|
yukon_set_multicast(dev);
|
|
|
|
}
|
|
|
|
|
|
/* Get receive buffer from descriptor.
|
|
* Handles copy of small buffers and reallocation failures
|
|
*/
|
|
static struct sk_buff *skge_rx_get(struct net_device *dev,
|
|
struct skge_element *e,
|
|
u32 control, u32 status, u16 csum)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct sk_buff *skb;
|
|
u16 len = control & BMU_BBC;
|
|
|
|
if (unlikely(netif_msg_rx_status(skge)))
|
|
printk(KERN_DEBUG PFX "%s: rx slot %td status 0x%x len %d\n",
|
|
dev->name, e - skge->rx_ring.start,
|
|
status, len);
|
|
|
|
if (len > skge->rx_buf_size)
|
|
goto error;
|
|
|
|
if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF))
|
|
goto error;
|
|
|
|
if (bad_phy_status(skge->hw, status))
|
|
goto error;
|
|
|
|
if (phy_length(skge->hw, status) != len)
|
|
goto error;
|
|
|
|
if (len < RX_COPY_THRESHOLD) {
|
|
skb = netdev_alloc_skb(dev, len + 2);
|
|
if (!skb)
|
|
goto resubmit;
|
|
|
|
skb_reserve(skb, 2);
|
|
pci_dma_sync_single_for_cpu(skge->hw->pdev,
|
|
pci_unmap_addr(e, mapaddr),
|
|
len, PCI_DMA_FROMDEVICE);
|
|
skb_copy_from_linear_data(e->skb, skb->data, len);
|
|
pci_dma_sync_single_for_device(skge->hw->pdev,
|
|
pci_unmap_addr(e, mapaddr),
|
|
len, PCI_DMA_FROMDEVICE);
|
|
skge_rx_reuse(e, skge->rx_buf_size);
|
|
} else {
|
|
struct sk_buff *nskb;
|
|
nskb = netdev_alloc_skb(dev, skge->rx_buf_size + NET_IP_ALIGN);
|
|
if (!nskb)
|
|
goto resubmit;
|
|
|
|
skb_reserve(nskb, NET_IP_ALIGN);
|
|
pci_unmap_single(skge->hw->pdev,
|
|
pci_unmap_addr(e, mapaddr),
|
|
pci_unmap_len(e, maplen),
|
|
PCI_DMA_FROMDEVICE);
|
|
skb = e->skb;
|
|
prefetch(skb->data);
|
|
skge_rx_setup(skge, e, nskb, skge->rx_buf_size);
|
|
}
|
|
|
|
skb_put(skb, len);
|
|
if (skge->rx_csum) {
|
|
skb->csum = csum;
|
|
skb->ip_summed = CHECKSUM_COMPLETE;
|
|
}
|
|
|
|
skb->protocol = eth_type_trans(skb, dev);
|
|
|
|
return skb;
|
|
error:
|
|
|
|
if (netif_msg_rx_err(skge))
|
|
printk(KERN_DEBUG PFX "%s: rx err, slot %td control 0x%x status 0x%x\n",
|
|
dev->name, e - skge->rx_ring.start,
|
|
control, status);
|
|
|
|
if (skge->hw->chip_id == CHIP_ID_GENESIS) {
|
|
if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR))
|
|
dev->stats.rx_length_errors++;
|
|
if (status & XMR_FS_FRA_ERR)
|
|
dev->stats.rx_frame_errors++;
|
|
if (status & XMR_FS_FCS_ERR)
|
|
dev->stats.rx_crc_errors++;
|
|
} else {
|
|
if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE))
|
|
dev->stats.rx_length_errors++;
|
|
if (status & GMR_FS_FRAGMENT)
|
|
dev->stats.rx_frame_errors++;
|
|
if (status & GMR_FS_CRC_ERR)
|
|
dev->stats.rx_crc_errors++;
|
|
}
|
|
|
|
resubmit:
|
|
skge_rx_reuse(e, skge->rx_buf_size);
|
|
return NULL;
|
|
}
|
|
|
|
/* Free all buffers in Tx ring which are no longer owned by device */
|
|
static void skge_tx_done(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_ring *ring = &skge->tx_ring;
|
|
struct skge_element *e;
|
|
|
|
skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
|
|
|
|
for (e = ring->to_clean; e != ring->to_use; e = e->next) {
|
|
u32 control = ((const struct skge_tx_desc *) e->desc)->control;
|
|
|
|
if (control & BMU_OWN)
|
|
break;
|
|
|
|
skge_tx_free(skge, e, control);
|
|
}
|
|
skge->tx_ring.to_clean = e;
|
|
|
|
/* Can run lockless until we need to synchronize to restart queue. */
|
|
smp_mb();
|
|
|
|
if (unlikely(netif_queue_stopped(dev) &&
|
|
skge_avail(&skge->tx_ring) > TX_LOW_WATER)) {
|
|
netif_tx_lock(dev);
|
|
if (unlikely(netif_queue_stopped(dev) &&
|
|
skge_avail(&skge->tx_ring) > TX_LOW_WATER)) {
|
|
netif_wake_queue(dev);
|
|
|
|
}
|
|
netif_tx_unlock(dev);
|
|
}
|
|
}
|
|
|
|
static int skge_poll(struct napi_struct *napi, int to_do)
|
|
{
|
|
struct skge_port *skge = container_of(napi, struct skge_port, napi);
|
|
struct net_device *dev = skge->netdev;
|
|
struct skge_hw *hw = skge->hw;
|
|
struct skge_ring *ring = &skge->rx_ring;
|
|
struct skge_element *e;
|
|
int work_done = 0;
|
|
|
|
skge_tx_done(dev);
|
|
|
|
skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
|
|
|
|
for (e = ring->to_clean; prefetch(e->next), work_done < to_do; e = e->next) {
|
|
struct skge_rx_desc *rd = e->desc;
|
|
struct sk_buff *skb;
|
|
u32 control;
|
|
|
|
rmb();
|
|
control = rd->control;
|
|
if (control & BMU_OWN)
|
|
break;
|
|
|
|
skb = skge_rx_get(dev, e, control, rd->status, rd->csum2);
|
|
if (likely(skb)) {
|
|
netif_receive_skb(skb);
|
|
|
|
++work_done;
|
|
}
|
|
}
|
|
ring->to_clean = e;
|
|
|
|
/* restart receiver */
|
|
wmb();
|
|
skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_START);
|
|
|
|
if (work_done < to_do) {
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&hw->hw_lock, flags);
|
|
__netif_rx_complete(napi);
|
|
hw->intr_mask |= napimask[skge->port];
|
|
skge_write32(hw, B0_IMSK, hw->intr_mask);
|
|
skge_read32(hw, B0_IMSK);
|
|
spin_unlock_irqrestore(&hw->hw_lock, flags);
|
|
}
|
|
|
|
return work_done;
|
|
}
|
|
|
|
/* Parity errors seem to happen when Genesis is connected to a switch
|
|
* with no other ports present. Heartbeat error??
|
|
*/
|
|
static void skge_mac_parity(struct skge_hw *hw, int port)
|
|
{
|
|
struct net_device *dev = hw->dev[port];
|
|
|
|
++dev->stats.tx_heartbeat_errors;
|
|
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
|
|
MFF_CLR_PERR);
|
|
else
|
|
/* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
|
|
skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T),
|
|
(hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
|
|
? GMF_CLI_TX_FC : GMF_CLI_TX_PE);
|
|
}
|
|
|
|
static void skge_mac_intr(struct skge_hw *hw, int port)
|
|
{
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
genesis_mac_intr(hw, port);
|
|
else
|
|
yukon_mac_intr(hw, port);
|
|
}
|
|
|
|
/* Handle device specific framing and timeout interrupts */
|
|
static void skge_error_irq(struct skge_hw *hw)
|
|
{
|
|
struct pci_dev *pdev = hw->pdev;
|
|
u32 hwstatus = skge_read32(hw, B0_HWE_ISRC);
|
|
|
|
if (hw->chip_id == CHIP_ID_GENESIS) {
|
|
/* clear xmac errors */
|
|
if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1))
|
|
skge_write16(hw, RX_MFF_CTRL1, MFF_CLR_INSTAT);
|
|
if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2))
|
|
skge_write16(hw, RX_MFF_CTRL2, MFF_CLR_INSTAT);
|
|
} else {
|
|
/* Timestamp (unused) overflow */
|
|
if (hwstatus & IS_IRQ_TIST_OV)
|
|
skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
|
|
}
|
|
|
|
if (hwstatus & IS_RAM_RD_PAR) {
|
|
dev_err(&pdev->dev, "Ram read data parity error\n");
|
|
skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR);
|
|
}
|
|
|
|
if (hwstatus & IS_RAM_WR_PAR) {
|
|
dev_err(&pdev->dev, "Ram write data parity error\n");
|
|
skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR);
|
|
}
|
|
|
|
if (hwstatus & IS_M1_PAR_ERR)
|
|
skge_mac_parity(hw, 0);
|
|
|
|
if (hwstatus & IS_M2_PAR_ERR)
|
|
skge_mac_parity(hw, 1);
|
|
|
|
if (hwstatus & IS_R1_PAR_ERR) {
|
|
dev_err(&pdev->dev, "%s: receive queue parity error\n",
|
|
hw->dev[0]->name);
|
|
skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P);
|
|
}
|
|
|
|
if (hwstatus & IS_R2_PAR_ERR) {
|
|
dev_err(&pdev->dev, "%s: receive queue parity error\n",
|
|
hw->dev[1]->name);
|
|
skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P);
|
|
}
|
|
|
|
if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) {
|
|
u16 pci_status, pci_cmd;
|
|
|
|
pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
|
|
pci_read_config_word(pdev, PCI_STATUS, &pci_status);
|
|
|
|
dev_err(&pdev->dev, "PCI error cmd=%#x status=%#x\n",
|
|
pci_cmd, pci_status);
|
|
|
|
/* Write the error bits back to clear them. */
|
|
pci_status &= PCI_STATUS_ERROR_BITS;
|
|
skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
|
|
pci_write_config_word(pdev, PCI_COMMAND,
|
|
pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
|
|
pci_write_config_word(pdev, PCI_STATUS, pci_status);
|
|
skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
|
|
|
|
/* if error still set then just ignore it */
|
|
hwstatus = skge_read32(hw, B0_HWE_ISRC);
|
|
if (hwstatus & IS_IRQ_STAT) {
|
|
dev_warn(&hw->pdev->dev, "unable to clear error (so ignoring them)\n");
|
|
hw->intr_mask &= ~IS_HW_ERR;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Interrupt from PHY are handled in tasklet (softirq)
|
|
* because accessing phy registers requires spin wait which might
|
|
* cause excess interrupt latency.
|
|
*/
|
|
static void skge_extirq(unsigned long arg)
|
|
{
|
|
struct skge_hw *hw = (struct skge_hw *) arg;
|
|
int port;
|
|
|
|
for (port = 0; port < hw->ports; port++) {
|
|
struct net_device *dev = hw->dev[port];
|
|
|
|
if (netif_running(dev)) {
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
spin_lock(&hw->phy_lock);
|
|
if (hw->chip_id != CHIP_ID_GENESIS)
|
|
yukon_phy_intr(skge);
|
|
else if (hw->phy_type == SK_PHY_BCOM)
|
|
bcom_phy_intr(skge);
|
|
spin_unlock(&hw->phy_lock);
|
|
}
|
|
}
|
|
|
|
spin_lock_irq(&hw->hw_lock);
|
|
hw->intr_mask |= IS_EXT_REG;
|
|
skge_write32(hw, B0_IMSK, hw->intr_mask);
|
|
skge_read32(hw, B0_IMSK);
|
|
spin_unlock_irq(&hw->hw_lock);
|
|
}
|
|
|
|
static irqreturn_t skge_intr(int irq, void *dev_id)
|
|
{
|
|
struct skge_hw *hw = dev_id;
|
|
u32 status;
|
|
int handled = 0;
|
|
|
|
spin_lock(&hw->hw_lock);
|
|
/* Reading this register masks IRQ */
|
|
status = skge_read32(hw, B0_SP_ISRC);
|
|
if (status == 0 || status == ~0)
|
|
goto out;
|
|
|
|
handled = 1;
|
|
status &= hw->intr_mask;
|
|
if (status & IS_EXT_REG) {
|
|
hw->intr_mask &= ~IS_EXT_REG;
|
|
tasklet_schedule(&hw->phy_task);
|
|
}
|
|
|
|
if (status & (IS_XA1_F|IS_R1_F)) {
|
|
struct skge_port *skge = netdev_priv(hw->dev[0]);
|
|
hw->intr_mask &= ~(IS_XA1_F|IS_R1_F);
|
|
netif_rx_schedule(&skge->napi);
|
|
}
|
|
|
|
if (status & IS_PA_TO_TX1)
|
|
skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1);
|
|
|
|
if (status & IS_PA_TO_RX1) {
|
|
++hw->dev[0]->stats.rx_over_errors;
|
|
skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1);
|
|
}
|
|
|
|
|
|
if (status & IS_MAC1)
|
|
skge_mac_intr(hw, 0);
|
|
|
|
if (hw->dev[1]) {
|
|
struct skge_port *skge = netdev_priv(hw->dev[1]);
|
|
|
|
if (status & (IS_XA2_F|IS_R2_F)) {
|
|
hw->intr_mask &= ~(IS_XA2_F|IS_R2_F);
|
|
netif_rx_schedule(&skge->napi);
|
|
}
|
|
|
|
if (status & IS_PA_TO_RX2) {
|
|
++hw->dev[1]->stats.rx_over_errors;
|
|
skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2);
|
|
}
|
|
|
|
if (status & IS_PA_TO_TX2)
|
|
skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2);
|
|
|
|
if (status & IS_MAC2)
|
|
skge_mac_intr(hw, 1);
|
|
}
|
|
|
|
if (status & IS_HW_ERR)
|
|
skge_error_irq(hw);
|
|
|
|
skge_write32(hw, B0_IMSK, hw->intr_mask);
|
|
skge_read32(hw, B0_IMSK);
|
|
out:
|
|
spin_unlock(&hw->hw_lock);
|
|
|
|
return IRQ_RETVAL(handled);
|
|
}
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
static void skge_netpoll(struct net_device *dev)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
disable_irq(dev->irq);
|
|
skge_intr(dev->irq, skge->hw);
|
|
enable_irq(dev->irq);
|
|
}
|
|
#endif
|
|
|
|
static int skge_set_mac_address(struct net_device *dev, void *p)
|
|
{
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
struct skge_hw *hw = skge->hw;
|
|
unsigned port = skge->port;
|
|
const struct sockaddr *addr = p;
|
|
u16 ctrl;
|
|
|
|
if (!is_valid_ether_addr(addr->sa_data))
|
|
return -EADDRNOTAVAIL;
|
|
|
|
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
|
|
|
|
if (!netif_running(dev)) {
|
|
memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
|
|
memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN);
|
|
} else {
|
|
/* disable Rx */
|
|
spin_lock_bh(&hw->phy_lock);
|
|
ctrl = gma_read16(hw, port, GM_GP_CTRL);
|
|
gma_write16(hw, port, GM_GP_CTRL, ctrl & ~GM_GPCR_RX_ENA);
|
|
|
|
memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
|
|
memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN);
|
|
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
xm_outaddr(hw, port, XM_SA, dev->dev_addr);
|
|
else {
|
|
gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
|
|
gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
|
|
}
|
|
|
|
gma_write16(hw, port, GM_GP_CTRL, ctrl);
|
|
spin_unlock_bh(&hw->phy_lock);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct {
|
|
u8 id;
|
|
const char *name;
|
|
} skge_chips[] = {
|
|
{ CHIP_ID_GENESIS, "Genesis" },
|
|
{ CHIP_ID_YUKON, "Yukon" },
|
|
{ CHIP_ID_YUKON_LITE, "Yukon-Lite"},
|
|
{ CHIP_ID_YUKON_LP, "Yukon-LP"},
|
|
};
|
|
|
|
static const char *skge_board_name(const struct skge_hw *hw)
|
|
{
|
|
int i;
|
|
static char buf[16];
|
|
|
|
for (i = 0; i < ARRAY_SIZE(skge_chips); i++)
|
|
if (skge_chips[i].id == hw->chip_id)
|
|
return skge_chips[i].name;
|
|
|
|
snprintf(buf, sizeof buf, "chipid 0x%x", hw->chip_id);
|
|
return buf;
|
|
}
|
|
|
|
|
|
/*
|
|
* Setup the board data structure, but don't bring up
|
|
* the port(s)
|
|
*/
|
|
static int skge_reset(struct skge_hw *hw)
|
|
{
|
|
u32 reg;
|
|
u16 ctst, pci_status;
|
|
u8 t8, mac_cfg, pmd_type;
|
|
int i;
|
|
|
|
ctst = skge_read16(hw, B0_CTST);
|
|
|
|
/* do a SW reset */
|
|
skge_write8(hw, B0_CTST, CS_RST_SET);
|
|
skge_write8(hw, B0_CTST, CS_RST_CLR);
|
|
|
|
/* clear PCI errors, if any */
|
|
skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
|
|
skge_write8(hw, B2_TST_CTRL2, 0);
|
|
|
|
pci_read_config_word(hw->pdev, PCI_STATUS, &pci_status);
|
|
pci_write_config_word(hw->pdev, PCI_STATUS,
|
|
pci_status | PCI_STATUS_ERROR_BITS);
|
|
skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
|
|
skge_write8(hw, B0_CTST, CS_MRST_CLR);
|
|
|
|
/* restore CLK_RUN bits (for Yukon-Lite) */
|
|
skge_write16(hw, B0_CTST,
|
|
ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA));
|
|
|
|
hw->chip_id = skge_read8(hw, B2_CHIP_ID);
|
|
hw->phy_type = skge_read8(hw, B2_E_1) & 0xf;
|
|
pmd_type = skge_read8(hw, B2_PMD_TYP);
|
|
hw->copper = (pmd_type == 'T' || pmd_type == '1');
|
|
|
|
switch (hw->chip_id) {
|
|
case CHIP_ID_GENESIS:
|
|
switch (hw->phy_type) {
|
|
case SK_PHY_XMAC:
|
|
hw->phy_addr = PHY_ADDR_XMAC;
|
|
break;
|
|
case SK_PHY_BCOM:
|
|
hw->phy_addr = PHY_ADDR_BCOM;
|
|
break;
|
|
default:
|
|
dev_err(&hw->pdev->dev, "unsupported phy type 0x%x\n",
|
|
hw->phy_type);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
break;
|
|
|
|
case CHIP_ID_YUKON:
|
|
case CHIP_ID_YUKON_LITE:
|
|
case CHIP_ID_YUKON_LP:
|
|
if (hw->phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S')
|
|
hw->copper = 1;
|
|
|
|
hw->phy_addr = PHY_ADDR_MARV;
|
|
break;
|
|
|
|
default:
|
|
dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
|
|
hw->chip_id);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
mac_cfg = skge_read8(hw, B2_MAC_CFG);
|
|
hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2;
|
|
hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4;
|
|
|
|
/* read the adapters RAM size */
|
|
t8 = skge_read8(hw, B2_E_0);
|
|
if (hw->chip_id == CHIP_ID_GENESIS) {
|
|
if (t8 == 3) {
|
|
/* special case: 4 x 64k x 36, offset = 0x80000 */
|
|
hw->ram_size = 0x100000;
|
|
hw->ram_offset = 0x80000;
|
|
} else
|
|
hw->ram_size = t8 * 512;
|
|
}
|
|
else if (t8 == 0)
|
|
hw->ram_size = 0x20000;
|
|
else
|
|
hw->ram_size = t8 * 4096;
|
|
|
|
hw->intr_mask = IS_HW_ERR;
|
|
|
|
/* Use PHY IRQ for all but fiber based Genesis board */
|
|
if (!(hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC))
|
|
hw->intr_mask |= IS_EXT_REG;
|
|
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
genesis_init(hw);
|
|
else {
|
|
/* switch power to VCC (WA for VAUX problem) */
|
|
skge_write8(hw, B0_POWER_CTRL,
|
|
PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
|
|
|
|
/* avoid boards with stuck Hardware error bits */
|
|
if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) &&
|
|
(skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) {
|
|
dev_warn(&hw->pdev->dev, "stuck hardware sensor bit\n");
|
|
hw->intr_mask &= ~IS_HW_ERR;
|
|
}
|
|
|
|
/* Clear PHY COMA */
|
|
skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
|
|
pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®);
|
|
reg &= ~PCI_PHY_COMA;
|
|
pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg);
|
|
skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
|
|
|
|
|
|
for (i = 0; i < hw->ports; i++) {
|
|
skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
|
|
skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
|
|
}
|
|
}
|
|
|
|
/* turn off hardware timer (unused) */
|
|
skge_write8(hw, B2_TI_CTRL, TIM_STOP);
|
|
skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
|
|
skge_write8(hw, B0_LED, LED_STAT_ON);
|
|
|
|
/* enable the Tx Arbiters */
|
|
for (i = 0; i < hw->ports; i++)
|
|
skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
|
|
|
|
/* Initialize ram interface */
|
|
skge_write16(hw, B3_RI_CTRL, RI_RST_CLR);
|
|
|
|
skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53);
|
|
skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53);
|
|
skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53);
|
|
skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53);
|
|
skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53);
|
|
skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53);
|
|
skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53);
|
|
skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53);
|
|
skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53);
|
|
skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53);
|
|
skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53);
|
|
skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53);
|
|
|
|
skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK);
|
|
|
|
/* Set interrupt moderation for Transmit only
|
|
* Receive interrupts avoided by NAPI
|
|
*/
|
|
skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F);
|
|
skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100));
|
|
skge_write32(hw, B2_IRQM_CTRL, TIM_START);
|
|
|
|
skge_write32(hw, B0_IMSK, hw->intr_mask);
|
|
|
|
for (i = 0; i < hw->ports; i++) {
|
|
if (hw->chip_id == CHIP_ID_GENESIS)
|
|
genesis_reset(hw, i);
|
|
else
|
|
yukon_reset(hw, i);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_SKGE_DEBUG
|
|
|
|
static struct dentry *skge_debug;
|
|
|
|
static int skge_debug_show(struct seq_file *seq, void *v)
|
|
{
|
|
struct net_device *dev = seq->private;
|
|
const struct skge_port *skge = netdev_priv(dev);
|
|
const struct skge_hw *hw = skge->hw;
|
|
const struct skge_element *e;
|
|
|
|
if (!netif_running(dev))
|
|
return -ENETDOWN;
|
|
|
|
seq_printf(seq, "IRQ src=%x mask=%x\n", skge_read32(hw, B0_ISRC),
|
|
skge_read32(hw, B0_IMSK));
|
|
|
|
seq_printf(seq, "Tx Ring: (%d)\n", skge_avail(&skge->tx_ring));
|
|
for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) {
|
|
const struct skge_tx_desc *t = e->desc;
|
|
seq_printf(seq, "%#x dma=%#x%08x %#x csum=%#x/%x/%x\n",
|
|
t->control, t->dma_hi, t->dma_lo, t->status,
|
|
t->csum_offs, t->csum_write, t->csum_start);
|
|
}
|
|
|
|
seq_printf(seq, "\nRx Ring: \n");
|
|
for (e = skge->rx_ring.to_clean; ; e = e->next) {
|
|
const struct skge_rx_desc *r = e->desc;
|
|
|
|
if (r->control & BMU_OWN)
|
|
break;
|
|
|
|
seq_printf(seq, "%#x dma=%#x%08x %#x %#x csum=%#x/%x\n",
|
|
r->control, r->dma_hi, r->dma_lo, r->status,
|
|
r->timestamp, r->csum1, r->csum1_start);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int skge_debug_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, skge_debug_show, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations skge_debug_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = skge_debug_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
/*
|
|
* Use network device events to create/remove/rename
|
|
* debugfs file entries
|
|
*/
|
|
static int skge_device_event(struct notifier_block *unused,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
struct net_device *dev = ptr;
|
|
struct skge_port *skge;
|
|
struct dentry *d;
|
|
|
|
if (dev->netdev_ops->ndo_open != &skge_up || !skge_debug)
|
|
goto done;
|
|
|
|
skge = netdev_priv(dev);
|
|
switch(event) {
|
|
case NETDEV_CHANGENAME:
|
|
if (skge->debugfs) {
|
|
d = debugfs_rename(skge_debug, skge->debugfs,
|
|
skge_debug, dev->name);
|
|
if (d)
|
|
skge->debugfs = d;
|
|
else {
|
|
pr_info(PFX "%s: rename failed\n", dev->name);
|
|
debugfs_remove(skge->debugfs);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NETDEV_GOING_DOWN:
|
|
if (skge->debugfs) {
|
|
debugfs_remove(skge->debugfs);
|
|
skge->debugfs = NULL;
|
|
}
|
|
break;
|
|
|
|
case NETDEV_UP:
|
|
d = debugfs_create_file(dev->name, S_IRUGO,
|
|
skge_debug, dev,
|
|
&skge_debug_fops);
|
|
if (!d || IS_ERR(d))
|
|
pr_info(PFX "%s: debugfs create failed\n",
|
|
dev->name);
|
|
else
|
|
skge->debugfs = d;
|
|
break;
|
|
}
|
|
|
|
done:
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static struct notifier_block skge_notifier = {
|
|
.notifier_call = skge_device_event,
|
|
};
|
|
|
|
|
|
static __init void skge_debug_init(void)
|
|
{
|
|
struct dentry *ent;
|
|
|
|
ent = debugfs_create_dir("skge", NULL);
|
|
if (!ent || IS_ERR(ent)) {
|
|
pr_info(PFX "debugfs create directory failed\n");
|
|
return;
|
|
}
|
|
|
|
skge_debug = ent;
|
|
register_netdevice_notifier(&skge_notifier);
|
|
}
|
|
|
|
static __exit void skge_debug_cleanup(void)
|
|
{
|
|
if (skge_debug) {
|
|
unregister_netdevice_notifier(&skge_notifier);
|
|
debugfs_remove(skge_debug);
|
|
skge_debug = NULL;
|
|
}
|
|
}
|
|
|
|
#else
|
|
#define skge_debug_init()
|
|
#define skge_debug_cleanup()
|
|
#endif
|
|
|
|
static const struct net_device_ops skge_netdev_ops = {
|
|
.ndo_open = skge_up,
|
|
.ndo_stop = skge_down,
|
|
.ndo_start_xmit = skge_xmit_frame,
|
|
.ndo_do_ioctl = skge_ioctl,
|
|
.ndo_get_stats = skge_get_stats,
|
|
.ndo_tx_timeout = skge_tx_timeout,
|
|
.ndo_change_mtu = skge_change_mtu,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_set_multicast_list = skge_set_multicast,
|
|
.ndo_set_mac_address = skge_set_mac_address,
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
.ndo_poll_controller = skge_netpoll,
|
|
#endif
|
|
};
|
|
|
|
|
|
/* Initialize network device */
|
|
static struct net_device *skge_devinit(struct skge_hw *hw, int port,
|
|
int highmem)
|
|
{
|
|
struct skge_port *skge;
|
|
struct net_device *dev = alloc_etherdev(sizeof(*skge));
|
|
|
|
if (!dev) {
|
|
dev_err(&hw->pdev->dev, "etherdev alloc failed\n");
|
|
return NULL;
|
|
}
|
|
|
|
SET_NETDEV_DEV(dev, &hw->pdev->dev);
|
|
dev->netdev_ops = &skge_netdev_ops;
|
|
dev->ethtool_ops = &skge_ethtool_ops;
|
|
dev->watchdog_timeo = TX_WATCHDOG;
|
|
dev->irq = hw->pdev->irq;
|
|
|
|
if (highmem)
|
|
dev->features |= NETIF_F_HIGHDMA;
|
|
|
|
skge = netdev_priv(dev);
|
|
netif_napi_add(dev, &skge->napi, skge_poll, NAPI_WEIGHT);
|
|
skge->netdev = dev;
|
|
skge->hw = hw;
|
|
skge->msg_enable = netif_msg_init(debug, default_msg);
|
|
|
|
skge->tx_ring.count = DEFAULT_TX_RING_SIZE;
|
|
skge->rx_ring.count = DEFAULT_RX_RING_SIZE;
|
|
|
|
/* Auto speed and flow control */
|
|
skge->autoneg = AUTONEG_ENABLE;
|
|
skge->flow_control = FLOW_MODE_SYM_OR_REM;
|
|
skge->duplex = -1;
|
|
skge->speed = -1;
|
|
skge->advertising = skge_supported_modes(hw);
|
|
|
|
if (device_may_wakeup(&hw->pdev->dev))
|
|
skge->wol = wol_supported(hw) & WAKE_MAGIC;
|
|
|
|
hw->dev[port] = dev;
|
|
|
|
skge->port = port;
|
|
|
|
/* Only used for Genesis XMAC */
|
|
setup_timer(&skge->link_timer, xm_link_timer, (unsigned long) skge);
|
|
|
|
if (hw->chip_id != CHIP_ID_GENESIS) {
|
|
dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
|
|
skge->rx_csum = 1;
|
|
}
|
|
|
|
/* read the mac address */
|
|
memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN);
|
|
memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
|
|
|
|
/* device is off until link detection */
|
|
netif_carrier_off(dev);
|
|
netif_stop_queue(dev);
|
|
|
|
return dev;
|
|
}
|
|
|
|
static void __devinit skge_show_addr(struct net_device *dev)
|
|
{
|
|
const struct skge_port *skge = netdev_priv(dev);
|
|
|
|
if (netif_msg_probe(skge))
|
|
printk(KERN_INFO PFX "%s: addr %pM\n",
|
|
dev->name, dev->dev_addr);
|
|
}
|
|
|
|
static int __devinit skge_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
struct net_device *dev, *dev1;
|
|
struct skge_hw *hw;
|
|
int err, using_dac = 0;
|
|
|
|
err = pci_enable_device(pdev);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "cannot enable PCI device\n");
|
|
goto err_out;
|
|
}
|
|
|
|
err = pci_request_regions(pdev, DRV_NAME);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "cannot obtain PCI resources\n");
|
|
goto err_out_disable_pdev;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
|
|
using_dac = 1;
|
|
err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
|
|
} else if (!(err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
|
|
using_dac = 0;
|
|
err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
|
|
}
|
|
|
|
if (err) {
|
|
dev_err(&pdev->dev, "no usable DMA configuration\n");
|
|
goto err_out_free_regions;
|
|
}
|
|
|
|
#ifdef __BIG_ENDIAN
|
|
/* byte swap descriptors in hardware */
|
|
{
|
|
u32 reg;
|
|
|
|
pci_read_config_dword(pdev, PCI_DEV_REG2, ®);
|
|
reg |= PCI_REV_DESC;
|
|
pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
|
|
}
|
|
#endif
|
|
|
|
err = -ENOMEM;
|
|
hw = kzalloc(sizeof(*hw), GFP_KERNEL);
|
|
if (!hw) {
|
|
dev_err(&pdev->dev, "cannot allocate hardware struct\n");
|
|
goto err_out_free_regions;
|
|
}
|
|
|
|
hw->pdev = pdev;
|
|
spin_lock_init(&hw->hw_lock);
|
|
spin_lock_init(&hw->phy_lock);
|
|
tasklet_init(&hw->phy_task, &skge_extirq, (unsigned long) hw);
|
|
|
|
hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
|
|
if (!hw->regs) {
|
|
dev_err(&pdev->dev, "cannot map device registers\n");
|
|
goto err_out_free_hw;
|
|
}
|
|
|
|
err = skge_reset(hw);
|
|
if (err)
|
|
goto err_out_iounmap;
|
|
|
|
printk(KERN_INFO PFX DRV_VERSION " addr 0x%llx irq %d chip %s rev %d\n",
|
|
(unsigned long long)pci_resource_start(pdev, 0), pdev->irq,
|
|
skge_board_name(hw), hw->chip_rev);
|
|
|
|
dev = skge_devinit(hw, 0, using_dac);
|
|
if (!dev)
|
|
goto err_out_led_off;
|
|
|
|
/* Some motherboards are broken and has zero in ROM. */
|
|
if (!is_valid_ether_addr(dev->dev_addr))
|
|
dev_warn(&pdev->dev, "bad (zero?) ethernet address in rom\n");
|
|
|
|
err = register_netdev(dev);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "cannot register net device\n");
|
|
goto err_out_free_netdev;
|
|
}
|
|
|
|
err = request_irq(pdev->irq, skge_intr, IRQF_SHARED, dev->name, hw);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "%s: cannot assign irq %d\n",
|
|
dev->name, pdev->irq);
|
|
goto err_out_unregister;
|
|
}
|
|
skge_show_addr(dev);
|
|
|
|
if (hw->ports > 1 && (dev1 = skge_devinit(hw, 1, using_dac))) {
|
|
if (register_netdev(dev1) == 0)
|
|
skge_show_addr(dev1);
|
|
else {
|
|
/* Failure to register second port need not be fatal */
|
|
dev_warn(&pdev->dev, "register of second port failed\n");
|
|
hw->dev[1] = NULL;
|
|
free_netdev(dev1);
|
|
}
|
|
}
|
|
pci_set_drvdata(pdev, hw);
|
|
|
|
return 0;
|
|
|
|
err_out_unregister:
|
|
unregister_netdev(dev);
|
|
err_out_free_netdev:
|
|
free_netdev(dev);
|
|
err_out_led_off:
|
|
skge_write16(hw, B0_LED, LED_STAT_OFF);
|
|
err_out_iounmap:
|
|
iounmap(hw->regs);
|
|
err_out_free_hw:
|
|
kfree(hw);
|
|
err_out_free_regions:
|
|
pci_release_regions(pdev);
|
|
err_out_disable_pdev:
|
|
pci_disable_device(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
err_out:
|
|
return err;
|
|
}
|
|
|
|
static void __devexit skge_remove(struct pci_dev *pdev)
|
|
{
|
|
struct skge_hw *hw = pci_get_drvdata(pdev);
|
|
struct net_device *dev0, *dev1;
|
|
|
|
if (!hw)
|
|
return;
|
|
|
|
flush_scheduled_work();
|
|
|
|
if ((dev1 = hw->dev[1]))
|
|
unregister_netdev(dev1);
|
|
dev0 = hw->dev[0];
|
|
unregister_netdev(dev0);
|
|
|
|
tasklet_disable(&hw->phy_task);
|
|
|
|
spin_lock_irq(&hw->hw_lock);
|
|
hw->intr_mask = 0;
|
|
skge_write32(hw, B0_IMSK, 0);
|
|
skge_read32(hw, B0_IMSK);
|
|
spin_unlock_irq(&hw->hw_lock);
|
|
|
|
skge_write16(hw, B0_LED, LED_STAT_OFF);
|
|
skge_write8(hw, B0_CTST, CS_RST_SET);
|
|
|
|
free_irq(pdev->irq, hw);
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
if (dev1)
|
|
free_netdev(dev1);
|
|
free_netdev(dev0);
|
|
|
|
iounmap(hw->regs);
|
|
kfree(hw);
|
|
pci_set_drvdata(pdev, NULL);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
struct skge_hw *hw = pci_get_drvdata(pdev);
|
|
int i, err, wol = 0;
|
|
|
|
if (!hw)
|
|
return 0;
|
|
|
|
err = pci_save_state(pdev);
|
|
if (err)
|
|
return err;
|
|
|
|
for (i = 0; i < hw->ports; i++) {
|
|
struct net_device *dev = hw->dev[i];
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
if (netif_running(dev))
|
|
skge_down(dev);
|
|
if (skge->wol)
|
|
skge_wol_init(skge);
|
|
|
|
wol |= skge->wol;
|
|
}
|
|
|
|
skge_write32(hw, B0_IMSK, 0);
|
|
|
|
pci_prepare_to_sleep(pdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int skge_resume(struct pci_dev *pdev)
|
|
{
|
|
struct skge_hw *hw = pci_get_drvdata(pdev);
|
|
int i, err;
|
|
|
|
if (!hw)
|
|
return 0;
|
|
|
|
err = pci_back_from_sleep(pdev);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = pci_restore_state(pdev);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = skge_reset(hw);
|
|
if (err)
|
|
goto out;
|
|
|
|
for (i = 0; i < hw->ports; i++) {
|
|
struct net_device *dev = hw->dev[i];
|
|
|
|
if (netif_running(dev)) {
|
|
err = skge_up(dev);
|
|
|
|
if (err) {
|
|
printk(KERN_ERR PFX "%s: could not up: %d\n",
|
|
dev->name, err);
|
|
dev_close(dev);
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
out:
|
|
return err;
|
|
}
|
|
#endif
|
|
|
|
static void skge_shutdown(struct pci_dev *pdev)
|
|
{
|
|
struct skge_hw *hw = pci_get_drvdata(pdev);
|
|
int i, wol = 0;
|
|
|
|
if (!hw)
|
|
return;
|
|
|
|
for (i = 0; i < hw->ports; i++) {
|
|
struct net_device *dev = hw->dev[i];
|
|
struct skge_port *skge = netdev_priv(dev);
|
|
|
|
if (skge->wol)
|
|
skge_wol_init(skge);
|
|
wol |= skge->wol;
|
|
}
|
|
|
|
if (pci_enable_wake(pdev, PCI_D3cold, wol))
|
|
pci_enable_wake(pdev, PCI_D3hot, wol);
|
|
|
|
pci_disable_device(pdev);
|
|
pci_set_power_state(pdev, PCI_D3hot);
|
|
|
|
}
|
|
|
|
static struct pci_driver skge_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = skge_id_table,
|
|
.probe = skge_probe,
|
|
.remove = __devexit_p(skge_remove),
|
|
#ifdef CONFIG_PM
|
|
.suspend = skge_suspend,
|
|
.resume = skge_resume,
|
|
#endif
|
|
.shutdown = skge_shutdown,
|
|
};
|
|
|
|
static int __init skge_init_module(void)
|
|
{
|
|
skge_debug_init();
|
|
return pci_register_driver(&skge_driver);
|
|
}
|
|
|
|
static void __exit skge_cleanup_module(void)
|
|
{
|
|
pci_unregister_driver(&skge_driver);
|
|
skge_debug_cleanup();
|
|
}
|
|
|
|
module_init(skge_init_module);
|
|
module_exit(skge_cleanup_module);
|