diff options
Diffstat (limited to 'drivers/net/jme.c')
| -rw-r--r-- | drivers/net/jme.c | 3235 |
1 files changed, 0 insertions, 3235 deletions
diff --git a/drivers/net/jme.c b/drivers/net/jme.c deleted file mode 100644 index 3ac262f..0000000 --- a/drivers/net/jme.c +++ /dev/null @@ -1,3235 +0,0 @@ -/* - * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver - * - * Copyright 2008 JMicron Technology Corporation - * http://www.jmicron.com/ - * Copyright (c) 2009 - 2010 Guo-Fu Tseng <cooldavid@cooldavid.org> - * - * Author: Guo-Fu Tseng <cooldavid@cooldavid.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/ethtool.h> -#include <linux/mii.h> -#include <linux/crc32.h> -#include <linux/delay.h> -#include <linux/spinlock.h> -#include <linux/in.h> -#include <linux/ip.h> -#include <linux/ipv6.h> -#include <linux/tcp.h> -#include <linux/udp.h> -#include <linux/if_vlan.h> -#include <linux/slab.h> -#include <net/ip6_checksum.h> -#include "jme.h" - -static int force_pseudohp = -1; -static int no_pseudohp = -1; -static int no_extplug = -1; -module_param(force_pseudohp, int, 0); -MODULE_PARM_DESC(force_pseudohp, - "Enable pseudo hot-plug feature manually by driver instead of BIOS."); -module_param(no_pseudohp, int, 0); -MODULE_PARM_DESC(no_pseudohp, "Disable pseudo hot-plug feature."); -module_param(no_extplug, int, 0); -MODULE_PARM_DESC(no_extplug, - "Do not use external plug signal for pseudo hot-plug."); - -static int -jme_mdio_read(struct net_device *netdev, int phy, int reg) -{ - struct jme_adapter *jme = netdev_priv(netdev); - int i, val, again = (reg == MII_BMSR) ? 1 : 0; - -read_again: - jwrite32(jme, JME_SMI, SMI_OP_REQ | - smi_phy_addr(phy) | - smi_reg_addr(reg)); - - wmb(); - for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { - udelay(20); - val = jread32(jme, JME_SMI); - if ((val & SMI_OP_REQ) == 0) - break; - } - - if (i == 0) { - pr_err("phy(%d) read timeout : %d\n", phy, reg); - return 0; - } - - if (again--) - goto read_again; - - return (val & SMI_DATA_MASK) >> SMI_DATA_SHIFT; -} - -static void -jme_mdio_write(struct net_device *netdev, - int phy, int reg, int val) -{ - struct jme_adapter *jme = netdev_priv(netdev); - int i; - - jwrite32(jme, JME_SMI, SMI_OP_WRITE | SMI_OP_REQ | - ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) | - smi_phy_addr(phy) | smi_reg_addr(reg)); - - wmb(); - for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { - udelay(20); - if ((jread32(jme, JME_SMI) & SMI_OP_REQ) == 0) - break; - } - - if (i == 0) - pr_err("phy(%d) write timeout : %d\n", phy, reg); -} - -static inline void -jme_reset_phy_processor(struct jme_adapter *jme) -{ - u32 val; - - jme_mdio_write(jme->dev, - jme->mii_if.phy_id, - MII_ADVERTISE, ADVERTISE_ALL | - ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); - - if (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) - jme_mdio_write(jme->dev, - jme->mii_if.phy_id, - MII_CTRL1000, - ADVERTISE_1000FULL | ADVERTISE_1000HALF); - - val = jme_mdio_read(jme->dev, - jme->mii_if.phy_id, - MII_BMCR); - - jme_mdio_write(jme->dev, - jme->mii_if.phy_id, - MII_BMCR, val | BMCR_RESET); -} - -static void -jme_setup_wakeup_frame(struct jme_adapter *jme, - const u32 *mask, u32 crc, int fnr) -{ - int i; - - /* - * Setup CRC pattern - */ - jwrite32(jme, JME_WFOI, WFOI_CRC_SEL | (fnr & WFOI_FRAME_SEL)); - wmb(); - jwrite32(jme, JME_WFODP, crc); - wmb(); - - /* - * Setup Mask - */ - for (i = 0 ; i < WAKEUP_FRAME_MASK_DWNR ; ++i) { - jwrite32(jme, JME_WFOI, - ((i << WFOI_MASK_SHIFT) & WFOI_MASK_SEL) | - (fnr & WFOI_FRAME_SEL)); - wmb(); - jwrite32(jme, JME_WFODP, mask[i]); - wmb(); - } -} - -static inline void -jme_mac_rxclk_off(struct jme_adapter *jme) -{ - jme->reg_gpreg1 |= GPREG1_RXCLKOFF; - jwrite32f(jme, JME_GPREG1, jme->reg_gpreg1); -} - -static inline void -jme_mac_rxclk_on(struct jme_adapter *jme) -{ - jme->reg_gpreg1 &= ~GPREG1_RXCLKOFF; - jwrite32f(jme, JME_GPREG1, jme->reg_gpreg1); -} - -static inline void -jme_mac_txclk_off(struct jme_adapter *jme) -{ - jme->reg_ghc &= ~(GHC_TO_CLK_SRC | GHC_TXMAC_CLK_SRC); - jwrite32f(jme, JME_GHC, jme->reg_ghc); -} - -static inline void -jme_mac_txclk_on(struct jme_adapter *jme) -{ - u32 speed = jme->reg_ghc & GHC_SPEED; - if (speed == GHC_SPEED_1000M) - jme->reg_ghc |= GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY; - else - jme->reg_ghc |= GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; - jwrite32f(jme, JME_GHC, jme->reg_ghc); -} - -static inline void -jme_reset_ghc_speed(struct jme_adapter *jme) -{ - jme->reg_ghc &= ~(GHC_SPEED | GHC_DPX); - jwrite32f(jme, JME_GHC, jme->reg_ghc); -} - -static inline void -jme_reset_250A2_workaround(struct jme_adapter *jme) -{ - jme->reg_gpreg1 &= ~(GPREG1_HALFMODEPATCH | - GPREG1_RSSPATCH); - jwrite32(jme, JME_GPREG1, jme->reg_gpreg1); -} - -static inline void -jme_assert_ghc_reset(struct jme_adapter *jme) -{ - jme->reg_ghc |= GHC_SWRST; - jwrite32f(jme, JME_GHC, jme->reg_ghc); -} - -static inline void -jme_clear_ghc_reset(struct jme_adapter *jme) -{ - jme->reg_ghc &= ~GHC_SWRST; - jwrite32f(jme, JME_GHC, jme->reg_ghc); -} - -static inline void -jme_reset_mac_processor(struct jme_adapter *jme) -{ - static const u32 mask[WAKEUP_FRAME_MASK_DWNR] = {0, 0, 0, 0}; - u32 crc = 0xCDCDCDCD; - u32 gpreg0; - int i; - - jme_reset_ghc_speed(jme); - jme_reset_250A2_workaround(jme); - - jme_mac_rxclk_on(jme); - jme_mac_txclk_on(jme); - udelay(1); - jme_assert_ghc_reset(jme); - udelay(1); - jme_mac_rxclk_off(jme); - jme_mac_txclk_off(jme); - udelay(1); - jme_clear_ghc_reset(jme); - udelay(1); - jme_mac_rxclk_on(jme); - jme_mac_txclk_on(jme); - udelay(1); - jme_mac_rxclk_off(jme); - jme_mac_txclk_off(jme); - - jwrite32(jme, JME_RXDBA_LO, 0x00000000); - jwrite32(jme, JME_RXDBA_HI, 0x00000000); - jwrite32(jme, JME_RXQDC, 0x00000000); - jwrite32(jme, JME_RXNDA, 0x00000000); - jwrite32(jme, JME_TXDBA_LO, 0x00000000); - jwrite32(jme, JME_TXDBA_HI, 0x00000000); - jwrite32(jme, JME_TXQDC, 0x00000000); - jwrite32(jme, JME_TXNDA, 0x00000000); - - jwrite32(jme, JME_RXMCHT_LO, 0x00000000); - jwrite32(jme, JME_RXMCHT_HI, 0x00000000); - for (i = 0 ; i < WAKEUP_FRAME_NR ; ++i) - jme_setup_wakeup_frame(jme, mask, crc, i); - if (jme->fpgaver) - gpreg0 = GPREG0_DEFAULT | GPREG0_LNKINTPOLL; - else - gpreg0 = GPREG0_DEFAULT; - jwrite32(jme, JME_GPREG0, gpreg0); -} - -static inline void -jme_clear_pm(struct jme_adapter *jme) -{ - jwrite32(jme, JME_PMCS, PMCS_STMASK | jme->reg_pmcs); -} - -static int -jme_reload_eeprom(struct jme_adapter *jme) -{ - u32 val; - int i; - - val = jread32(jme, JME_SMBCSR); - - if (val & SMBCSR_EEPROMD) { - val |= SMBCSR_CNACK; - jwrite32(jme, JME_SMBCSR, val); - val |= SMBCSR_RELOAD; - jwrite32(jme, JME_SMBCSR, val); - mdelay(12); - - for (i = JME_EEPROM_RELOAD_TIMEOUT; i > 0; --i) { - mdelay(1); - if ((jread32(jme, JME_SMBCSR) & SMBCSR_RELOAD) == 0) - break; - } - - if (i == 0) { - pr_err("eeprom reload timeout\n"); - return -EIO; - } - } - - return 0; -} - -static void -jme_load_macaddr(struct net_device *netdev) -{ - struct jme_adapter *jme = netdev_priv(netdev); - unsigned char macaddr[6]; - u32 val; - - spin_lock_bh(&jme->macaddr_lock); - val = jread32(jme, JME_RXUMA_LO); - macaddr[0] = (val >> 0) & 0xFF; - macaddr[1] = (val >> 8) & 0xFF; - macaddr[2] = (val >> 16) & 0xFF; - macaddr[3] = (val >> 24) & 0xFF; - val = jread32(jme, JME_RXUMA_HI); - macaddr[4] = (val >> 0) & 0xFF; - macaddr[5] = (val >> 8) & 0xFF; - memcpy(netdev->dev_addr, macaddr, 6); - spin_unlock_bh(&jme->macaddr_lock); -} - -static inline void -jme_set_rx_pcc(struct jme_adapter *jme, int p) -{ - switch (p) { - case PCC_OFF: - jwrite32(jme, JME_PCCRX0, - ((PCC_OFF_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | - ((PCC_OFF_CNT << PCCRX_SHIFT) & PCCRX_MASK)); - break; - case PCC_P1: - jwrite32(jme, JME_PCCRX0, - ((PCC_P1_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | - ((PCC_P1_CNT << PCCRX_SHIFT) & PCCRX_MASK)); - break; - case PCC_P2: - jwrite32(jme, JME_PCCRX0, - ((PCC_P2_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | - ((PCC_P2_CNT << PCCRX_SHIFT) & PCCRX_MASK)); - break; - case PCC_P3: - jwrite32(jme, JME_PCCRX0, - ((PCC_P3_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | - ((PCC_P3_CNT << PCCRX_SHIFT) & PCCRX_MASK)); - break; - default: - break; - } - wmb(); - - if (!(test_bit(JME_FLAG_POLL, &jme->flags))) - netif_info(jme, rx_status, jme->dev, "Switched to PCC_P%d\n", p); -} - -static void -jme_start_irq(struct jme_adapter *jme) -{ - register struct dynpcc_info *dpi = &(jme->dpi); - - jme_set_rx_pcc(jme, PCC_P1); - dpi->cur = PCC_P1; - dpi->attempt = PCC_P1; - dpi->cnt = 0; - - jwrite32(jme, JME_PCCTX, - ((PCC_TX_TO << PCCTXTO_SHIFT) & PCCTXTO_MASK) | - ((PCC_TX_CNT << PCCTX_SHIFT) & PCCTX_MASK) | - PCCTXQ0_EN - ); - - /* - * Enable Interrupts - */ - jwrite32(jme, JME_IENS, INTR_ENABLE); -} - -static inline void -jme_stop_irq(struct jme_adapter *jme) -{ - /* - * Disable Interrupts - */ - jwrite32f(jme, JME_IENC, INTR_ENABLE); -} - -static u32 -jme_linkstat_from_phy(struct jme_adapter *jme) -{ - u32 phylink, bmsr; - - phylink = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 17); - bmsr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMSR); - if (bmsr & BMSR_ANCOMP) - phylink |= PHY_LINK_AUTONEG_COMPLETE; - - return phylink; -} - -static inline void -jme_set_phyfifo_5level(struct jme_adapter *jme) -{ - jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0004); -} - -static inline void -jme_set_phyfifo_8level(struct jme_adapter *jme) -{ - jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0000); -} - -static int -jme_check_link(struct net_device *netdev, int testonly) -{ - struct jme_adapter *jme = netdev_priv(netdev); - u32 phylink, cnt = JME_SPDRSV_TIMEOUT, bmcr; - char linkmsg[64]; - int rc = 0; - - linkmsg[0] = '\0'; - - if (jme->fpgaver) - phylink = jme_linkstat_from_phy(jme); - else - phylink = jread32(jme, JME_PHY_LINK); - - if (phylink & PHY_LINK_UP) { - if (!(phylink & PHY_LINK_AUTONEG_COMPLETE)) { - /* - * If we did not enable AN - * Speed/Duplex Info should be obtained from SMI - */ - phylink = PHY_LINK_UP; - - bmcr = jme_mdio_read(jme->dev, - jme->mii_if.phy_id, - MII_BMCR); - - phylink |= ((bmcr & BMCR_SPEED1000) && - (bmcr & BMCR_SPEED100) == 0) ? - PHY_LINK_SPEED_1000M : - (bmcr & BMCR_SPEED100) ? - PHY_LINK_SPEED_100M : - PHY_LINK_SPEED_10M; - - phylink |= (bmcr & BMCR_FULLDPLX) ? - PHY_LINK_DUPLEX : 0; - - strcat(linkmsg, "Forced: "); - } else { - /* - * Keep polling for speed/duplex resolve complete - */ - while (!(phylink & PHY_LINK_SPEEDDPU_RESOLVED) && - --cnt) { - - udelay(1); - - if (jme->fpgaver) - phylink = jme_linkstat_from_phy(jme); - else - phylink = jread32(jme, JME_PHY_LINK); - } - if (!cnt) - pr_err("Waiting speed resolve timeout\n"); - - strcat(linkmsg, "ANed: "); - } - - if (jme->phylink == phylink) { - rc = 1; - goto out; - } - if (testonly) - goto out; - - jme->phylink = phylink; - - /* - * The speed/duplex setting of jme->reg_ghc already cleared - * by jme_reset_mac_processor() - */ - switch (phylink & PHY_LINK_SPEED_MASK) { - case PHY_LINK_SPEED_10M: - jme->reg_ghc |= GHC_SPEED_10M; - strcat(linkmsg, "10 Mbps, "); - break; - case PHY_LINK_SPEED_100M: - jme->reg_ghc |= GHC_SPEED_100M; - strcat(linkmsg, "100 Mbps, "); - break; - case PHY_LINK_SPEED_1000M: - jme->reg_ghc |= GHC_SPEED_1000M; - strcat(linkmsg, "1000 Mbps, "); - break; - default: - break; - } - - if (phylink & PHY_LINK_DUPLEX) { - jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT); - jwrite32(jme, JME_TXTRHD, TXTRHD_FULLDUPLEX); - jme->reg_ghc |= GHC_DPX; - } else { - jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT | - TXMCS_BACKOFF | - TXMCS_CARRIERSENSE | - TXMCS_COLLISION); - jwrite32(jme, JME_TXTRHD, TXTRHD_HALFDUPLEX); - } - - jwrite32(jme, JME_GHC, jme->reg_ghc); - - if (is_buggy250(jme->pdev->device, jme->chiprev)) { - jme->reg_gpreg1 &= ~(GPREG1_HALFMODEPATCH | - GPREG1_RSSPATCH); - if (!(phylink & PHY_LINK_DUPLEX)) - jme->reg_gpreg1 |= GPREG1_HALFMODEPATCH; - switch (phylink & PHY_LINK_SPEED_MASK) { - case PHY_LINK_SPEED_10M: - jme_set_phyfifo_8level(jme); - jme->reg_gpreg1 |= GPREG1_RSSPATCH; - break; - case PHY_LINK_SPEED_100M: - jme_set_phyfifo_5level(jme); - jme->reg_gpreg1 |= GPREG1_RSSPATCH; - break; - case PHY_LINK_SPEED_1000M: - jme_set_phyfifo_8level(jme); - break; - default: - break; - } - } - jwrite32(jme, JME_GPREG1, jme->reg_gpreg1); - - strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ? - "Full-Duplex, " : - "Half-Duplex, "); - strcat(linkmsg, (phylink & PHY_LINK_MDI_STAT) ? - "MDI-X" : - "MDI"); - netif_info(jme, link, jme->dev, "Link is up at %s\n", linkmsg); - netif_carrier_on(netdev); - } else { - if (testonly) - goto out; - - netif_info(jme, link, jme->dev, "Link is down\n"); - jme->phylink = 0; - netif_carrier_off(netdev); - } - -out: - return rc; -} - -static int -jme_setup_tx_resources(struct jme_adapter *jme) -{ - struct jme_ring *txring = &(jme->txring[0]); - - txring->alloc = dma_alloc_coherent(&(jme->pdev->dev), - TX_RING_ALLOC_SIZE(jme->tx_ring_size), - &(txring->dmaalloc), - GFP_ATOMIC); - - if (!txring->alloc) - goto err_set_null; - - /* - * 16 Bytes align - */ - txring->desc = (void *)ALIGN((unsigned long)(txring->alloc), - RING_DESC_ALIGN); - txring->dma = ALIGN(txring->dmaalloc, RING_DESC_ALIGN); - txring->next_to_use = 0; - atomic_set(&txring->next_to_clean, 0); - atomic_set(&txring->nr_free, jme->tx_ring_size); - - txring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * - jme->tx_ring_size, GFP_ATOMIC); - if (unlikely(!(txring->bufinf))) - goto err_free_txring; - - /* - * Initialize Transmit Descriptors - */ - memset(txring->alloc, 0, TX_RING_ALLOC_SIZE(jme->tx_ring_size)); - memset(txring->bufinf, 0, - sizeof(struct jme_buffer_info) * jme->tx_ring_size); - - return 0; - -err_free_txring: - dma_free_coherent(&(jme->pdev->dev), - TX_RING_ALLOC_SIZE(jme->tx_ring_size), - txring->alloc, - txring->dmaalloc); - -err_set_null: - txring->desc = NULL; - txring->dmaalloc = 0; - txring->dma = 0; - txring->bufinf = NULL; - - return -ENOMEM; -} - -static void -jme_free_tx_resources(struct jme_adapter *jme) -{ - int i; - struct jme_ring *txring = &(jme->txring[0]); - struct jme_buffer_info *txbi; - - if (txring->alloc) { - if (txring->bufinf) { - for (i = 0 ; i < jme->tx_ring_size ; ++i) { - txbi = txring->bufinf + i; - if (txbi->skb) { - dev_kfree_skb(txbi->skb); - txbi->skb = NULL; - } - txbi->mapping = 0; - txbi->len = 0; - txbi->nr_desc = 0; - txbi->start_xmit = 0; - } - kfree(txring->bufinf); - } - - dma_free_coherent(&(jme->pdev->dev), - TX_RING_ALLOC_SIZE(jme->tx_ring_size), - txring->alloc, - txring->dmaalloc); - - txring->alloc = NULL; - txring->desc = NULL; - txring->dmaalloc = 0; - txring->dma = 0; - txring->bufinf = NULL; - } - txring->next_to_use = 0; - atomic_set(&txring->next_to_clean, 0); - atomic_set(&txring->nr_free, 0); -} - -static inline void -jme_enable_tx_engine(struct jme_adapter *jme) -{ - /* - * Select Queue 0 - */ - jwrite32(jme, JME_TXCS, TXCS_DEFAULT | TXCS_SELECT_QUEUE0); - wmb(); - - /* - * Setup TX Queue 0 DMA Bass Address - */ - jwrite32(jme, JME_TXDBA_LO, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); - jwrite32(jme, JME_TXDBA_HI, (__u64)(jme->txring[0].dma) >> 32); - jwrite32(jme, JME_TXNDA, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); - - /* - * Setup TX Descptor Count - */ - jwrite32(jme, JME_TXQDC, jme->tx_ring_size); - - /* - * Enable TX Engine - */ - wmb(); - jwrite32f(jme, JME_TXCS, jme->reg_txcs | - TXCS_SELECT_QUEUE0 | - TXCS_ENABLE); - - /* - * Start clock for TX MAC Processor - */ - jme_mac_txclk_on(jme); -} - -static inline void -jme_restart_tx_engine(struct jme_adapter *jme) -{ - /* - * Restart TX Engine - */ - jwrite32(jme, JME_TXCS, jme->reg_txcs | - TXCS_SELECT_QUEUE0 | - TXCS_ENABLE); -} - -static inline void -jme_disable_tx_engine(struct jme_adapter *jme) -{ - int i; - u32 val; - - /* - * Disable TX Engine - */ - jwrite32(jme, JME_TXCS, jme->reg_txcs | TXCS_SELECT_QUEUE0); - wmb(); - - val = jread32(jme, JME_TXCS); - for (i = JME_TX_DISABLE_TIMEOUT ; (val & TXCS_ENABLE) && i > 0 ; --i) { - mdelay(1); - val = jread32(jme, JME_TXCS); - rmb(); - } - - if (!i) - pr_err("Disable TX engine timeout\n"); - - /* - * Stop clock for TX MAC Processor - */ - jme_mac_txclk_off(jme); -} - -static void -jme_set_clean_rxdesc(struct jme_adapter *jme, int i) -{ - struct jme_ring *rxring = &(jme->rxring[0]); - register struct rxdesc *rxdesc = rxring->desc; - struct jme_buffer_info *rxbi = rxring->bufinf; - rxdesc += i; - rxbi += i; - - rxdesc->dw[0] = 0; - rxdesc->dw[1] = 0; - rxdesc->desc1.bufaddrh = cpu_to_le32((__u64)rxbi->mapping >> 32); - rxdesc->desc1.bufaddrl = cpu_to_le32( - (__u64)rxbi->mapping & 0xFFFFFFFFUL); - rxdesc->desc1.datalen = cpu_to_le16(rxbi->len); - if (jme->dev->features & NETIF_F_HIGHDMA) - rxdesc->desc1.flags = RXFLAG_64BIT; - wmb(); - rxdesc->desc1.flags |= RXFLAG_OWN | RXFLAG_INT; -} - -static int -jme_make_new_rx_buf(struct jme_adapter *jme, int i) -{ - struct jme_ring *rxring = &(jme->rxring[0]); - struct jme_buffer_info *rxbi = rxring->bufinf + i; - struct sk_buff *skb; - dma_addr_t mapping; - - skb = netdev_alloc_skb(jme->dev, - jme->dev->mtu + RX_EXTRA_LEN); - if (unlikely(!skb)) - return -ENOMEM; - - mapping = pci_map_page(jme->pdev, virt_to_page(skb->data), - offset_in_page(skb->data), skb_tailroom(skb), - PCI_DMA_FROMDEVICE); - if (unlikely(pci_dma_mapping_error(jme->pdev, mapping))) { - dev_kfree_skb(skb); - return -ENOMEM; - } - - if (likely(rxbi->mapping)) - pci_unmap_page(jme->pdev, rxbi->mapping, - rxbi->len, PCI_DMA_FROMDEVICE); - - rxbi->skb = skb; - rxbi->len = skb_tailroom(skb); - rxbi->mapping = mapping; - return 0; -} - -static void -jme_free_rx_buf(struct jme_adapter *jme, int i) -{ - struct jme_ring *rxring = &(jme->rxring[0]); - struct jme_buffer_info *rxbi = rxring->bufinf; - rxbi += i; - - if (rxbi->skb) { - pci_unmap_page(jme->pdev, - rxbi->mapping, - rxbi->len, - PCI_DMA_FROMDEVICE); - dev_kfree_skb(rxbi->skb); - rxbi->skb = NULL; - rxbi->mapping = 0; - rxbi->len = 0; - } -} - -static void -jme_free_rx_resources(struct jme_adapter *jme) -{ - int i; - struct jme_ring *rxring = &(jme->rxring[0]); - - if (rxring->alloc) { - if (rxring->bufinf) { - for (i = 0 ; i < jme->rx_ring_size ; ++i) - jme_free_rx_buf(jme, i); - kfree(rxring->bufinf); - } - - dma_free_coherent(&(jme->pdev->dev), - RX_RING_ALLOC_SIZE(jme->rx_ring_size), - rxring->alloc, - rxring->dmaalloc); - rxring->alloc = NULL; - rxring->desc = NULL; - rxring->dmaalloc = 0; - rxring->dma = 0; - rxring->bufinf = NULL; - } - rxring->next_to_use = 0; - atomic_set(&rxring->next_to_clean, 0); -} - -static int -jme_setup_rx_resources(struct jme_adapter *jme) -{ - int i; - struct jme_ring *rxring = &(jme->rxring[0]); - - rxring->alloc = dma_alloc_coherent(&(jme->pdev->dev), - RX_RING_ALLOC_SIZE(jme->rx_ring_size), - &(rxring->dmaalloc), - GFP_ATOMIC); - if (!rxring->alloc) - goto err_set_null; - - /* - * 16 Bytes align - */ - rxring->desc = (void *)ALIGN((unsigned long)(rxring->alloc), - RING_DESC_ALIGN); - rxring->dma = ALIGN(rxring->dmaalloc, RING_DESC_ALIGN); - rxring->next_to_use = 0; - atomic_set(&rxring->next_to_clean, 0); - - rxring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * - jme->rx_ring_size, GFP_ATOMIC); - if (unlikely(!(rxring->bufinf))) - goto err_free_rxring; - - /* - * Initiallize Receive Descriptors - */ - memset(rxring->bufinf, 0, - sizeof(struct jme_buffer_info) * jme->rx_ring_size); - for (i = 0 ; i < jme->rx_ring_size ; ++i) { - if (unlikely(jme_make_new_rx_buf(jme, i))) { - jme_free_rx_resources(jme); - return -ENOMEM; - } - - jme_set_clean_rxdesc(jme, i); - } - - return 0; - -err_free_rxring: - dma_free_coherent(&(jme->pdev->dev), - RX_RING_ALLOC_SIZE(jme->rx_ring_size), - rxring->alloc, - rxring->dmaalloc); -err_set_null: - rxring->desc = NULL; - rxring->dmaalloc = 0; - rxring->dma = 0; - rxring->bufinf = NULL; - - return -ENOMEM; -} - -static inline void -jme_enable_rx_engine(struct jme_adapter *jme) -{ - /* - * Select Queue 0 - */ - jwrite32(jme, JME_RXCS, jme->reg_rxcs | - RXCS_QUEUESEL_Q0); - wmb(); - - /* - * Setup RX DMA Bass Address - */ - jwrite32(jme, JME_RXDBA_LO, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); - jwrite32(jme, JME_RXDBA_HI, (__u64)(jme->rxring[0].dma) >> 32); - jwrite32(jme, JME_RXNDA, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); - - /* - * Setup RX Descriptor Count - */ - jwrite32(jme, JME_RXQDC, jme->rx_ring_size); - - /* - * Setup Unicast Filter - */ - jme_set_unicastaddr(jme->dev); - jme_set_multi(jme->dev); - - /* - * Enable RX Engine - */ - wmb(); - jwrite32f(jme, JME_RXCS, jme->reg_rxcs | - RXCS_QUEUESEL_Q0 | - RXCS_ENABLE | - RXCS_QST); - - /* - * Start clock for RX MAC Processor - */ - jme_mac_rxclk_on(jme); -} - -static inline void -jme_restart_rx_engine(struct jme_adapter *jme) -{ - /* - * Start RX Engine - */ - jwrite32(jme, JME_RXCS, jme->reg_rxcs | - RXCS_QUEUESEL_Q0 | - RXCS_ENABLE | - RXCS_QST); -} - -static inline void -jme_disable_rx_engine(struct jme_adapter *jme) -{ - int i; - u32 val; - - /* - * Disable RX Engine - */ - jwrite32(jme, JME_RXCS, jme->reg_rxcs); - wmb(); - - val = jread32(jme, JME_RXCS); - for (i = JME_RX_DISABLE_TIMEOUT ; (val & RXCS_ENABLE) && i > 0 ; --i) { - mdelay(1); - val = jread32(jme, JME_RXCS); - rmb(); - } - - if (!i) - pr_err("Disable RX engine timeout\n"); - - /* - * Stop clock for RX MAC Processor - */ - jme_mac_rxclk_off(jme); -} - -static u16 -jme_udpsum(struct sk_buff *skb) -{ - u16 csum = 0xFFFFu; - - if (skb->len < (ETH_HLEN + sizeof(struct iphdr))) - return csum; - if (skb->protocol != htons(ETH_P_IP)) - return csum; - skb_set_network_header(skb, ETH_HLEN); - if ((ip_hdr(skb)->protocol != IPPROTO_UDP) || - (skb->len < (ETH_HLEN + - (ip_hdr(skb)->ihl << 2) + - sizeof(struct udphdr)))) { - skb_reset_network_header(skb); - return csum; - } - skb_set_transport_header(skb, - ETH_HLEN + (ip_hdr(skb)->ihl << 2)); - csum = udp_hdr(skb)->check; - skb_reset_transport_header(skb); - skb_reset_network_header(skb); - - return csum; -} - -static int -jme_rxsum_ok(struct jme_adapter *jme, u16 flags, struct sk_buff *skb) -{ - if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4))) - return false; - - if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_TCPON | RXWBFLAG_TCPCS)) - == RXWBFLAG_TCPON)) { - if (flags & RXWBFLAG_IPV4) - netif_err(jme, rx_err, jme->dev, "TCP Checksum error\n"); - return false; - } - - if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_UDPON | RXWBFLAG_UDPCS)) - == RXWBFLAG_UDPON) && jme_udpsum(skb)) { - if (flags & RXWBFLAG_IPV4) - netif_err(jme, rx_err, jme->dev, "UDP Checksum error\n"); - return false; - } - - if (unlikely((flags & (RXWBFLAG_IPV4 | RXWBFLAG_IPCS)) - == RXWBFLAG_IPV4)) { - netif_err(jme, rx_err, jme->dev, "IPv4 Checksum error\n"); - return false; - } - - return true; -} - -static void -jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx) -{ - struct jme_ring *rxring = &(jme->rxring[0]); - struct rxdesc *rxdesc = rxring->desc; - struct jme_buffer_info *rxbi = rxring->bufinf; - struct sk_buff *skb; - int framesize; - - rxdesc += idx; - rxbi += idx; - - skb = rxbi->skb; - pci_dma_sync_single_for_cpu(jme->pdev, - rxbi->mapping, - rxbi->len, - PCI_DMA_FROMDEVICE); - - if (unlikely(jme_make_new_rx_buf(jme, idx))) { - pci_dma_sync_single_for_device(jme->pdev, - rxbi->mapping, - rxbi->len, - PCI_DMA_FROMDEVICE); - - ++(NET_STAT(jme).rx_dropped); - } else { - framesize = le16_to_cpu(rxdesc->descwb.framesize) - - RX_PREPAD_SIZE; - - skb_reserve(skb, RX_PREPAD_SIZE); - skb_put(skb, framesize); - skb->protocol = eth_type_trans(skb, jme->dev); - - if (jme_rxsum_ok(jme, le16_to_cpu(rxdesc->descwb.flags), skb)) - skb->ip_summed = CHECKSUM_UNNECESSARY; - else - skb_checksum_none_assert(skb); - - if (rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_TAGON)) { - u16 vid = le16_to_cpu(rxdesc->descwb.vlan); - - __vlan_hwaccel_put_tag(skb, vid); - NET_STAT(jme).rx_bytes += 4; - } - jme->jme_rx(skb); - - if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_DEST)) == - cpu_to_le16(RXWBFLAG_DEST_MUL)) - ++(NET_STAT(jme).multicast); - - NET_STAT(jme).rx_bytes += framesize; - ++(NET_STAT(jme).rx_packets); - } - - jme_set_clean_rxdesc(jme, idx); - -} - -static int -jme_process_receive(struct jme_adapter *jme, int limit) -{ - struct jme_ring *rxring = &(jme->rxring[0]); - struct rxdesc *rxdesc = rxring->desc; - int i, j, ccnt, desccnt, mask = jme->rx_ring_mask; - - if (unlikely(!atomic_dec_and_test(&jme->rx_cleaning))) - goto out_inc; - - if (unlikely(atomic_read(&jme->link_changing) != 1)) - goto out_inc; - - if (unlikely(!netif_carrier_ok(jme->dev))) - goto out_inc; - - i = atomic_read(&rxring->next_to_clean); - while (limit > 0) { - rxdesc = rxring->desc; - rxdesc += i; - - if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_OWN)) || - !(rxdesc->descwb.desccnt & RXWBDCNT_WBCPL)) - goto out; - --limit; - - rmb(); - desccnt = rxdesc->descwb.desccnt & RXWBDCNT_DCNT; - - if (unlikely(desccnt > 1 || - rxdesc->descwb.errstat & RXWBERR_ALLERR)) { - - if (rxdesc->descwb.errstat & RXWBERR_CRCERR) - ++(NET_STAT(jme).rx_crc_errors); - else if (rxdesc->descwb.errstat & RXWBERR_OVERUN) - ++(NET_STAT(jme).rx_fifo_errors); - else - ++(NET_STAT(jme).rx_errors); - - if (desccnt > 1) - limit -= desccnt - 1; - - for (j = i, ccnt = desccnt ; ccnt-- ; ) { - jme_set_clean_rxdesc(jme, j); - j = (j + 1) & (mask); - } - - } else { - jme_alloc_and_feed_skb(jme, i); - } - - i = (i + desccnt) & (mask); - } - -out: - atomic_set(&rxring->next_to_clean, i); - -out_inc: - atomic_inc(&jme->rx_cleaning); - - return limit > 0 ? limit : 0; - -} - -static void -jme_attempt_pcc(struct dynpcc_info *dpi, int atmp) -{ - if (likely(atmp == dpi->cur)) { - dpi->cnt = 0; - return; - } - - if (dpi->attempt == atmp) { - ++(dpi->cnt); - } else { - dpi->attempt = atmp; - dpi->cnt = 0; - } - -} - -static void -jme_dynamic_pcc(struct jme_adapter *jme) -{ - register struct dynpcc_info *dpi = &(jme->dpi); - - if ((NET_STAT(jme).rx_bytes - dpi->last_bytes) > PCC_P3_THRESHOLD) - jme_attempt_pcc(dpi, PCC_P3); - else if ((NET_STAT(jme).rx_packets - dpi->last_pkts) > PCC_P2_THRESHOLD || - dpi->intr_cnt > PCC_INTR_THRESHOLD) - jme_attempt_pcc(dpi, PCC_P2); - else - jme_attempt_pcc(dpi, PCC_P1); - - if (unlikely(dpi->attempt != dpi->cur && dpi->cnt > 5)) { - if (dpi->attempt < dpi->cur) - tasklet_schedule(&jme->rxclean_task); - jme_set_rx_pcc(jme, dpi->attempt); - dpi->cur = dpi->attempt; - dpi->cnt = 0; - } -} - -static void -jme_start_pcc_timer(struct jme_adapter *jme) -{ - struct dynpcc_info *dpi = &(jme->dpi); - dpi->last_bytes = NET_STAT(jme).rx_bytes; - dpi->last_pkts = NET_STAT(jme).rx_packets; - dpi->intr_cnt = 0; - jwrite32(jme, JME_TMCSR, - TMCSR_EN | ((0xFFFFFF - PCC_INTERVAL_US) & TMCSR_CNT)); -} - -static inline void -jme_stop_pcc_timer(struct jme_adapter *jme) -{ - jwrite32(jme, JME_TMCSR, 0); -} - -static void -jme_shutdown_nic(struct jme_adapter *jme) -{ - u32 phylink; - - phylink = jme_linkstat_from_phy(jme); - - if (!(phylink & PHY_LINK_UP)) { - /* - * Disable all interrupt before issue timer - */ - jme_stop_irq(jme); - jwrite32(jme, JME_TIMER2, TMCSR_EN | 0xFFFFFE); - } -} - -static void -jme_pcc_tasklet(unsigned long arg) -{ - struct jme_adapter *jme = (struct jme_adapter *)arg; - struct net_device *netdev = jme->dev; - - if (unlikely(test_bit(JME_FLAG_SHUTDOWN, &jme->flags))) { - jme_shutdown_nic(jme); - return; - } - - if (unlikely(!netif_carrier_ok(netdev) || - (atomic_read(&jme->link_changing) != 1) - )) { - jme_stop_pcc_timer(jme); - return; - } - - if (!(test_bit(JME_FLAG_POLL, &jme->flags))) - jme_dynamic_pcc(jme); - - jme_start_pcc_timer(jme); -} - -static inline void -jme_polling_mode(struct jme_adapter *jme) -{ - jme_set_rx_pcc(jme, PCC_OFF); -} - -static inline void -jme_interrupt_mode(struct jme_adapter *jme) -{ - jme_set_rx_pcc(jme, PCC_P1); -} - -static inline int -jme_pseudo_hotplug_enabled(struct jme_adapter *jme) -{ - u32 apmc; - apmc = jread32(jme, JME_APMC); - return apmc & JME_APMC_PSEUDO_HP_EN; -} - -static void -jme_start_shutdown_timer(struct jme_adapter *jme) -{ - u32 apmc; - - apmc = jread32(jme, JME_APMC) | JME_APMC_PCIE_SD_EN; - apmc &= ~JME_APMC_EPIEN_CTRL; - if (!no_extplug) { - jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_EN); - wmb(); - } - jwrite32f(jme, JME_APMC, apmc); - - jwrite32f(jme, JME_TIMER2, 0); - set_bit(JME_FLAG_SHUTDOWN, &jme->flags); - jwrite32(jme, JME_TMCSR, - TMCSR_EN | ((0xFFFFFF - APMC_PHP_SHUTDOWN_DELAY) & TMCSR_CNT)); -} - -static void -jme_stop_shutdown_timer(struct jme_adapter *jme) -{ - u32 apmc; - - jwrite32f(jme, JME_TMCSR, 0); - jwrite32f(jme, JME_TIMER2, 0); - clear_bit(JME_FLAG_SHUTDOWN, &jme->flags); - - apmc = jread32(jme, JME_APMC); - apmc &= ~(JME_APMC_PCIE_SD_EN | JME_APMC_EPIEN_CTRL); - jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_DIS); - wmb(); - jwrite32f(jme, JME_APMC, apmc); -} - -static void -jme_link_change_tasklet(unsigned long arg) -{ - struct jme_adapter *jme = (struct jme_adapter *)arg; - struct net_device *netdev = jme->dev; - int rc; - - while (!atomic_dec_and_test(&jme->link_changing)) { - atomic_inc(&jme->link_changing); - netif_info(jme, intr, jme->dev, "Get link change lock failed\n"); - while (atomic_read(&jme->link_changing) != 1) - netif_info(jme, intr, jme->dev, "Waiting link change lock\n"); - } - - if (jme_check_link(netdev, 1) && jme->old_mtu == netdev->mtu) - goto out; - - jme->old_mtu = netdev->mtu; - netif_stop_queue(netdev); - if (jme_pseudo_hotplug_enabled(jme)) - jme_stop_shutdown_timer(jme); - - jme_stop_pcc_timer(jme); - tasklet_disable(&jme->txclean_task); - tasklet_disable(&jme->rxclean_task); - tasklet_disable(&jme->rxempty_task); - - if (netif_carrier_ok(netdev)) { - jme_disable_rx_engine(jme); - jme_disable_tx_engine(jme); - jme_reset_mac_processor(jme); - jme_free_rx_resources(jme); - jme_free_tx_resources(jme); - - if (test_bit(JME_FLAG_POLL, &jme->flags)) - jme_polling_mode(jme); - - netif_carrier_off(netdev); - } - - jme_check_link(netdev, 0); - if (netif_carrier_ok(netdev)) { - rc = jme_setup_rx_resources(jme); - if (rc) { - pr_err("Allocating resources for RX error, Device STOPPED!\n"); - goto out_enable_tasklet; - } - - rc = jme_setup_tx_resources(jme); - if (rc) { - pr_err("Allocating resources for TX error, Device STOPPED!\n"); - goto err_out_free_rx_resources; - } - - jme_enable_rx_engine(jme); - jme_enable_tx_engine(jme); - - netif_start_queue(netdev); - - if (test_bit(JME_FLAG_POLL, &jme->flags)) - jme_interrupt_mode(jme); - - jme_start_pcc_timer(jme); - } else if (jme_pseudo_hotplug_enabled(jme)) { - jme_start_shutdown_timer(jme); - } - - goto out_enable_tasklet; - -err_out_free_rx_resources: - jme_free_rx_resources(jme); -out_enable_tasklet: - tasklet_enable(&jme->txclean_task); - tasklet_hi_enable(&jme->rxclean_task); - tasklet_hi_enable(&jme->rxempty_task); -out: - atomic_inc(&jme->link_changing); -} - -static void -jme_rx_clean_tasklet(unsigned long arg) -{ - struct jme_adapter *jme = (struct jme_adapter *)arg; - struct dynpcc_info *dpi = &(jme->dpi); - - jme_process_receive(jme, jme->rx_ring_size); - ++(dpi->intr_cnt); - -} - -static int -jme_poll(JME_NAPI_HOLDER(holder), JME_NAPI_WEIGHT(budget)) -{ - struct jme_adapter *jme = jme_napi_priv(holder); - int rest; - - rest = jme_process_receive(jme, JME_NAPI_WEIGHT_VAL(budget)); - - while (atomic_read(&jme->rx_empty) > 0) { - atomic_dec(&jme->rx_empty); - ++(NET_STAT(jme).rx_dropped); - jme_restart_rx_engine(jme); - } - atomic_inc(&jme->rx_empty); - - if (rest) { - JME_RX_COMPLETE(netdev, holder); - jme_interrupt_mode(jme); - } - - JME_NAPI_WEIGHT_SET(budget, rest); - return JME_NAPI_WEIGHT_VAL(budget) - rest; -} - -static void -jme_rx_empty_tasklet(unsigned long arg) -{ - struct jme_adapter *jme = (struct jme_adapter *)arg; - - if (unlikely(atomic_read(&jme->link_changing) != 1)) - return; - - if (unlikely(!netif_carrier_ok(jme->dev))) - return; - - netif_info(jme, rx_status, jme->dev, "RX Queue Full!\n"); - - jme_rx_clean_tasklet(arg); - - while (atomic_read(&jme->rx_empty) > 0) { - atomic_dec(&jme->rx_empty); - ++(NET_STAT(jme).rx_dropped); - jme_restart_rx_engine(jme); - } - atomic_inc(&jme->rx_empty); -} - -static void -jme_wake_queue_if_stopped(struct jme_adapter *jme) -{ - struct jme_ring *txring = &(jme->txring[0]); - - smp_wmb(); - if (unlikely(netif_queue_stopped(jme->dev) && - atomic_read(&txring->nr_free) >= (jme->tx_wake_threshold))) { - netif_info(jme, tx_done, jme->dev, "TX Queue Waked\n"); - netif_wake_queue(jme->dev); - } - -} - -static void -jme_tx_clean_tasklet(unsigned long arg) -{ - struct jme_adapter *jme = (struct jme_adapter *)arg; - struct jme_ring *txring = &(jme->txring[0]); - struct txdesc *txdesc = txring->desc; - struct jme_buffer_info *txbi = txring->bufinf, *ctxbi, *ttxbi; - int i, j, cnt = 0, max, err, mask; - - tx_dbg(jme, "Into txclean\n"); - - if (unlikely(!atomic_dec_and_test(&jme->tx_cleaning))) - goto out; - - if (unlikely(atomic_read(&jme->link_changing) != 1)) - goto out; - - if (unlikely(!netif_carrier_ok(jme->dev))) - goto out; - - max = jme->tx_ring_size - atomic_read(&txring->nr_free); - mask = jme->tx_ring_mask; - - for (i = atomic_read(&txring->next_to_clean) ; cnt < max ; ) { - - ctxbi = txbi + i; - - if (likely(ctxbi->skb && - !(txdesc[i].descwb.flags & TXWBFLAG_OWN))) { - - tx_dbg(jme, "txclean: %d+%d@%lu\n", - i, ctxbi->nr_desc, jiffies); - - err = txdesc[i].descwb.flags & TXWBFLAG_ALLERR; - - for (j = 1 ; j < ctxbi->nr_desc ; ++j) { - ttxbi = txbi + ((i + j) & (mask)); - txdesc[(i + j) & (mask)].dw[0] = 0; - - pci_unmap_page(jme->pdev, - ttxbi->mapping, - ttxbi->len, - PCI_DMA_TODEVICE); - - ttxbi->mapping = 0; - ttxbi->len = 0; - } - - dev_kfree_skb(ctxbi->skb); - - cnt += ctxbi->nr_desc; - - if (unlikely(err)) { - ++(NET_STAT(jme).tx_carrier_errors); - } else { - ++(NET_STAT(jme).tx_packets); - NET_STAT(jme).tx_bytes += ctxbi->len; - } - - ctxbi->skb = NULL; - ctxbi->len = 0; - ctxbi->start_xmit = 0; - - } else { - break; - } - - i = (i + ctxbi->nr_desc) & mask; - - ctxbi->nr_desc = 0; - } - - tx_dbg(jme, "txclean: done %d@%lu\n", i, jiffies); - atomic_set(&txring->next_to_clean, i); - atomic_add(cnt, &txring->nr_free); - - jme_wake_queue_if_stopped(jme); - -out: - atomic_inc(&jme->tx_cleaning); -} - -static void -jme_intr_msi(struct jme_adapter *jme, u32 intrstat) -{ - /* - * Disable interrupt - */ - jwrite32f(jme, JME_IENC, INTR_ENABLE); - - if (intrstat & (INTR_LINKCH | INTR_SWINTR)) { - /* - * Link change event is critical - * all other events are ignored - */ - jwrite32(jme, JME_IEVE, intrstat); - tasklet_schedule(&jme->linkch_task); - goto out_reenable; - } - - if (intrstat & INTR_TMINTR) { - jwrite32(jme, JME_IEVE, INTR_TMINTR); - tasklet_schedule(&jme->pcc_task); - } - - if (intrstat & (INTR_PCCTXTO | INTR_PCCTX)) { - jwrite32(jme, JME_IEVE, INTR_PCCTXTO | INTR_PCCTX | INTR_TX0); - tasklet_schedule(&jme->txclean_task); - } - - if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { - jwrite32(jme, JME_IEVE, (intrstat & (INTR_PCCRX0TO | - INTR_PCCRX0 | - INTR_RX0EMP)) | - INTR_RX0); - } - - if (test_bit(JME_FLAG_POLL, &jme->flags)) { - if (intrstat & INTR_RX0EMP) - atomic_inc(&jme->rx_empty); - - if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { - if (likely(JME_RX_SCHEDULE_PREP(jme))) { - jme_polling_mode(jme); - JME_RX_SCHEDULE(jme); - } - } - } else { - if (intrstat & INTR_RX0EMP) { - atomic_inc(&jme->rx_empty); - tasklet_hi_schedule(&jme->rxempty_task); - } else if (intrstat & (INTR_PCCRX0TO | INTR_PCCRX0)) { - tasklet_hi_schedule(&jme->rxclean_task); - } - } - -out_reenable: - /* - * Re-enable interrupt - */ - jwrite32f(jme, JME_IENS, INTR_ENABLE); -} - -static irqreturn_t -jme_intr(int irq, void *dev_id) -{ - struct net_device *netdev = dev_id; - struct jme_adapter *jme = netdev_priv(netdev); - u32 intrstat; - - intrstat = jread32(jme, JME_IEVE); - - /* - * Check if it's really an interrupt for us - */ - if (unlikely((intrstat & INTR_ENABLE) == 0)) - return IRQ_NONE; - - /* - * Check if the device still exist - */ - if (unlikely(intrstat == ~((typeof(intrstat))0))) - return IRQ_NONE; - - jme_intr_msi(jme, intrstat); - - return IRQ_HANDLED; -} - -static irqreturn_t -jme_msi(int irq, void *dev_id) -{ - struct net_device *netdev = dev_id; - struct jme_adapter *jme = netdev_priv(netdev); - u32 intrstat; - - intrstat = jread32(jme, JME_IEVE); - - jme_intr_msi(jme, intrstat); - - return IRQ_HANDLED; -} - -static void -jme_reset_link(struct jme_adapter *jme) -{ - jwrite32(jme, JME_TMCSR, TMCSR_SWIT); -} - -static void -jme_restart_an(struct jme_adapter *jme) -{ - u32 bmcr; - - spin_lock_bh(&jme->phy_lock); - bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); - bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); - jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr); - spin_unlock_bh(&jme->phy_lock); -} - -static int -jme_request_irq(struct jme_adapter *jme) -{ - int rc; - struct net_device *netdev = jme->dev; - irq_handler_t handler = jme_intr; - int irq_flags = IRQF_SHARED; - - if (!pci_enable_msi(jme->pdev)) { - set_bit(JME_FLAG_MSI, &jme->flags); - handler = jme_msi; - irq_flags = 0; - } - - rc = request_irq(jme->pdev->irq, handler, irq_flags, netdev->name, - netdev); - if (rc) { - netdev_err(netdev, - "Unable to request %s interrupt (return: %d)\n", - test_bit(JME_FLAG_MSI, &jme->flags) ? "MSI" : "INTx", - rc); - - if (test_bit(JME_FLAG_MSI, &jme->flags)) { - pci_disable_msi(jme->pdev); - clear_bit(JME_FLAG_MSI, &jme->flags); - } - } else { - netdev->irq = jme->pdev->irq; - } - - return rc; -} - -static void -jme_free_irq(struct jme_adapter *jme) -{ - free_irq(jme->pdev->irq, jme->dev); - if (test_bit(JME_FLAG_MSI, &jme->flags)) { - pci_disable_msi(jme->pdev); - clear_bit(JME_FLAG_MSI, &jme->flags); - jme->dev->irq = jme->pdev->irq; - } -} - -static inline void -jme_new_phy_on(struct jme_adapter *jme) -{ - u32 reg; - - reg = jread32(jme, JME_PHY_PWR); - reg &= ~(PHY_PWR_DWN1SEL | PHY_PWR_DWN1SW | - PHY_PWR_DWN2 | PHY_PWR_CLKSEL); - jwrite32(jme, JME_PHY_PWR, reg); - - pci_read_config_dword(jme->pdev, PCI_PRIV_PE1, ®); - reg &= ~PE1_GPREG0_PBG; - reg |= PE1_GPREG0_ENBG; - pci_write_config_dword(jme->pdev, PCI_PRIV_PE1, reg); -} - -static inline void -jme_new_phy_off(struct jme_adapter *jme) -{ - u32 reg; - - reg = jread32(jme, JME_PHY_PWR); - reg |= PHY_PWR_DWN1SEL | PHY_PWR_DWN1SW | - PHY_PWR_DWN2 | PHY_PWR_CLKSEL; - jwrite32(jme, JME_PHY_PWR, reg); - - pci_read_config_dword(jme->pdev, PCI_PRIV_PE1, ®); - reg &= ~PE1_GPREG0_PBG; - reg |= PE1_GPREG0_PDD3COLD; - pci_write_config_dword(jme->pdev, PCI_PRIV_PE1, reg); -} - -static inline void -jme_phy_on(struct jme_adapter *jme) -{ - u32 bmcr; - - bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); - bmcr &= ~BMCR_PDOWN; - jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr); - - if (new_phy_power_ctrl(jme->chip_main_rev)) - jme_new_phy_on(jme); -} - -static inline void -jme_phy_off(struct jme_adapter *jme) -{ - u32 bmcr; - - bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); - bmcr |= BMCR_PDOWN; - jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr); - - if (new_phy_power_ctrl(jme->chip_main_rev)) - jme_new_phy_off(jme); -} - -static int -jme_open(struct net_device *netdev) -{ - struct jme_adapter *jme = netdev_priv(netdev); - int rc; - - jme_clear_pm(jme); - JME_NAPI_ENABLE(jme); - - tasklet_enable(&jme->linkch_task); - tasklet_enable(&jme->txclean_task); - tasklet_hi_enable(&jme->rxclean_task); - tasklet_hi_enable(&jme->rxempty_task); - - rc = jme_request_irq(jme); - if (rc) - goto err_out; - - jme_start_irq(jme); - - jme_phy_on(jme); - if (test_bit(JME_FLAG_SSET, &jme->flags)) - jme_set_settings(netdev, &jme->old_ecmd); - else - jme_reset_phy_processor(jme); - - jme_reset_link(jme); - - return 0; - -err_out: - netif_stop_queue(netdev); - netif_carrier_off(netdev); - return rc; -} - -static void -jme_set_100m_half(struct jme_adapter *jme) -{ - u32 bmcr, tmp; - - jme_phy_on(jme); - bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); - tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 | - BMCR_SPEED1000 | BMCR_FULLDPLX); - tmp |= BMCR_SPEED100; - - if (bmcr != tmp) - jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, tmp); - - if (jme->fpgaver) - jwrite32(jme, JME_GHC, GHC_SPEED_100M | GHC_LINK_POLL); - else - jwrite32(jme, JME_GHC, GHC_SPEED_100M); -} - -#define JME_WAIT_LINK_TIME 2000 /* 2000ms */ -static void -jme_wait_link(struct jme_adapter *jme) -{ - u32 phylink, to = JME_WAIT_LINK_TIME; - - mdelay(1000); - phylink = jme_linkstat_from_phy(jme); - while (!(phylink & PHY_LINK_UP) && (to -= 10) > 0) { - mdelay(10); - phylink = jme_linkstat_from_phy(jme); - } -} - -static void -jme_powersave_phy(struct jme_adapter *jme) -{ - if (jme->reg_pmcs) { - jme_set_100m_half(jme); - if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) - jme_wait_link(jme); - jme_clear_pm(jme); - } else { - jme_phy_off(jme); - } -} - -static int -jme_close(struct net_device *netdev) -{ - struct jme_adapter *jme = netdev_priv(netdev); - - netif_stop_queue(netdev); - netif_carrier_off(netdev); - - jme_stop_irq(jme); - jme_free_irq(jme); - - JME_NAPI_DISABLE(jme); - - tasklet_disable(&jme->linkch_task); - tasklet_disable(&jme->txclean_task); - tasklet_disable(&jme->rxclean_task); - tasklet_disable(&jme->rxempty_task); - - jme_disable_rx_engine(jme); - jme_disable_tx_engine(jme); - jme_reset_mac_processor(jme); - jme_free_rx_resources(jme); - jme_free_tx_resources(jme); - jme->phylink = 0; - jme_phy_off(jme); - - return 0; -} - -static int -jme_alloc_txdesc(struct jme_adapter *jme, - struct sk_buff *skb) -{ - struct jme_ring *txring = &(jme->txring[0]); - int idx, nr_alloc, mask = jme->tx_ring_mask; - - idx = txring->next_to_use; - nr_alloc = skb_shinfo(skb)->nr_frags + 2; - - if (unlikely(atomic_read(&txring->nr_free) < nr_alloc)) - return -1; - - atomic_sub(nr_alloc, &txring->nr_free); - - txring->next_to_use = (txring->next_to_use + nr_alloc) & mask; - - return idx; -} - -static void -jme_fill_tx_map(struct pci_dev *pdev, - struct txdesc *txdesc, - struct jme_buffer_info *txbi, - struct page *page, - u32 page_offset, - u32 len, - u8 hidma) -{ - dma_addr_t dmaaddr; - - dmaaddr = pci_map_page(pdev, - page, - page_offset, - len, - PCI_DMA_TODEVICE); - - pci_dma_sync_single_for_device(pdev, - dmaaddr, - len, - PCI_DMA_TODEVICE); - - txdesc->dw[0] = 0; - txdesc->dw[1] = 0; - txdesc->desc2.flags = TXFLAG_OWN; - txdesc->desc2.flags |= (hidma) ? TXFLAG_64BIT : 0; - txdesc->desc2.datalen = cpu_to_le16(len); - txdesc->desc2.bufaddrh = cpu_to_le32((__u64)dmaaddr >> 32); - txdesc->desc2.bufaddrl = cpu_to_le32( - (__u64)dmaaddr & 0xFFFFFFFFUL); - - txbi->mapping = dmaaddr; - txbi->len = len; -} - -static void -jme_map_tx_skb(struct jme_adapter *jme, struct sk_buff *skb, int idx) -{ - struct jme_ring *txring = &(jme->txring[0]); - struct txdesc *txdesc = txring->desc, *ctxdesc; - struct jme_buffer_info *txbi = txring->bufinf, *ctxbi; - u8 hidma = jme->dev->features & NETIF_F_HIGHDMA; - int i, nr_frags = skb_shinfo(skb)->nr_frags; - int mask = jme->tx_ring_mask; - struct skb_frag_struct *frag; - u32 len; - - for (i = 0 ; i < nr_frags ; ++i) { - frag = &skb_shinfo(skb)->frags[i]; - ctxdesc = txdesc + ((idx + i + 2) & (mask)); - ctxbi = txbi + ((idx + i + 2) & (mask)); - - jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, frag->page, - frag->page_offset, frag->size, hidma); - } - - len = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len; - ctxdesc = txdesc + ((idx + 1) & (mask)); - ctxbi = txbi + ((idx + 1) & (mask)); - jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, virt_to_page(skb->data), - offset_in_page(skb->data), len, hidma); - -} - -static int -jme_expand_header(struct jme_adapter *jme, struct sk_buff *skb) -{ - if (unlikely(skb_shinfo(skb)->gso_size && - skb_header_cloned(skb) && - pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) { - dev_kfree_skb(skb); - return -1; - } - - return 0; -} - -static int -jme_tx_tso(struct sk_buff *skb, __le16 *mss, u8 *flags) -{ - *mss = cpu_to_le16(skb_shinfo(skb)->gso_size << TXDESC_MSS_SHIFT); - if (*mss) { - *flags |= TXFLAG_LSEN; - - if (skb->protocol == htons(ETH_P_IP)) { - struct iphdr *iph = ip_hdr(skb); - - iph->check = 0; - tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, - iph->daddr, 0, - IPPROTO_TCP, - 0); - } else { - struct ipv6hdr *ip6h = ipv6_hdr(skb); - - tcp_hdr(skb)->check = ~csum_ipv6_magic(&ip6h->saddr, - &ip6h->daddr, 0, - IPPROTO_TCP, - 0); - } - - return 0; - } - - return 1; -} - -static void -jme_tx_csum(struct jme_adapter *jme, struct sk_buff *skb, u8 *flags) -{ - if (skb->ip_summed == CHECKSUM_PARTIAL) { - u8 ip_proto; - - switch (skb->protocol) { - case htons(ETH_P_IP): - ip_proto = ip_hdr(skb)->protocol; - break; - case htons(ETH_P_IPV6): - ip_proto = ipv6_hdr(skb)->nexthdr; - break; - default: - ip_proto = 0; - break; - } - - switch (ip_proto) { - case IPPROTO_TCP: - *flags |= TXFLAG_TCPCS; - break; - case IPPROTO_UDP: - *flags |= TXFLAG_UDPCS; - break; - default: - netif_err(jme, tx_err, jme->dev, "Error upper layer protocol\n"); - break; - } - } -} - -static inline void -jme_tx_vlan(struct sk_buff *skb, __le16 *vlan, u8 *flags) -{ - if (vlan_tx_tag_present(skb)) { - *flags |= TXFLAG_TAGON; - *vlan = cpu_to_le16(vlan_tx_tag_get(skb)); - } -} - -static int -jme_fill_tx_desc(struct jme_adapter *jme, struct sk_buff *skb, int idx) -{ - struct jme_ring *txring = &(jme->txring[0]); - struct txdesc *txdesc; - struct jme_buffer_info *txbi; - u8 flags; - - txdesc = (struct txdesc *)txring->desc + idx; - txbi = txring->bufinf + idx; - - txdesc->dw[0] = 0; - txdesc->dw[1] = 0; - txdesc->dw[2] = 0; - txdesc->dw[3] = 0; - txdesc->desc1.pktsize = cpu_to_le16(skb->len); - /* - * Set OWN bit at final. - * When kernel transmit faster than NIC. - * And NIC trying to send this descriptor before we tell - * it to start sending this TX queue. - * Other fields are already filled correctly. - */ - wmb(); - flags = TXFLAG_OWN | TXFLAG_INT; - /* - * Set checksum flags while not tso - */ - if (jme_tx_tso(skb, &txdesc->desc1.mss, &flags)) - jme_tx_csum(jme, skb, &flags); - jme_tx_vlan(skb, &txdesc->desc1.vlan, &flags); - jme_map_tx_skb(jme, skb, idx); - txdesc->desc1.flags = flags; - /* - * Set tx buffer info after telling NIC to send - * For better tx_clean timing - */ - wmb(); - txbi->nr_desc = skb_shinfo(skb)->nr_frags + 2; - txbi->skb = skb; - txbi->len = skb->len; - txbi->start_xmit = jiffies; - if (!txbi->start_xmit) - txbi->start_xmit = (0UL-1); - - return 0; -} - -static void -jme_stop_queue_if_full(struct jme_adapter *jme) -{ - struct jme_ring *txring = &(jme->txring[0]); - struct jme_buffer_info *txbi = txring->bufinf; - int idx = atomic_read(&txring->next_to_clean); - - txbi += idx; - - smp_wmb(); - if (unlikely(atomic_read(&txring->nr_free) < (MAX_SKB_FRAGS+2))) { - netif_stop_queue(jme->dev); - netif_info(jme, tx_queued, jme->dev, "TX Queue Paused\n"); - smp_wmb(); - if (atomic_read(&txring->nr_free) - >= (jme->tx_wake_threshold)) { - netif_wake_queue(jme->dev); - netif_info(jme, tx_queued, jme->dev, "TX Queue Fast Waked\n"); - } - } - - if (unlikely(txbi->start_xmit && - (jiffies - txbi->start_xmit) >= TX_TIMEOUT && - txbi->skb)) { - netif_stop_queue(jme->dev); - netif_info(jme, tx_queued, jme->dev, - "TX Queue Stopped %d@%lu\n", idx, jiffies); - } -} - -/* - * This function is already protected by netif_tx_lock() - */ - -static netdev_tx_t -jme_start_xmit(struct sk_buff *skb, struct net_device *netdev) -{ - struct jme_adapter *jme = netdev_priv(netdev); - int idx; - - if (unlikely(jme_expand_header(jme, skb))) { - ++(NET_STAT(jme).tx_dropped); - return NETDEV_TX_OK; - } - - idx = jme_alloc_txdesc(jme, skb); - - if (unlikely(idx < 0)) { - netif_stop_queue(netdev); - netif_err(jme, tx_err, jme->dev, - "BUG! Tx ring full when queue awake!\n"); - - return NETDEV_TX_BUSY; - } - - jme_fill_tx_desc(jme, skb, idx); - - jwrite32(jme, JME_TXCS, jme->reg_txcs | - TXCS_SELECT_QUEUE0 | - TXCS_QUEUE0S | - TXCS_ENABLE); - - tx_dbg(jme, "xmit: %d+%d@%lu\n", - idx, skb_shinfo(skb)->nr_frags + 2, jiffies); - jme_stop_queue_if_full(jme); - - return NETDEV_TX_OK; -} - -static void -jme_set_unicastaddr(struct net_device *netdev) -{ - struct jme_adapter *jme = netdev_priv(netdev); - u32 val; - - val = (netdev->dev_addr[3] & 0xff) << 24 | - (netdev->dev_addr[2] & 0xff) << 16 | - (netdev->dev_addr[1] & 0xff) << 8 | - (netdev->dev_addr[0] & 0xff); - jwrite32(jme, JME_RXUMA_LO, val); - val = (netdev->dev_addr[5] & 0xff) << 8 | - (netdev->dev_addr[4] & 0xff); - jwrite32(jme, JME_RXUMA_HI, val); -} - -static int -jme_set_macaddr(struct net_device *netdev, void *p) -{ - struct jme_adapter *jme = netdev_priv(netdev); - struct sockaddr *addr = p; - - if (netif_running(netdev)) - return -EBUSY; - - spin_lock_bh(&jme->macaddr_lock); - memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); - jme_set_unicastaddr(netdev); - spin_unlock_bh(&jme->macaddr_lock); - - return 0; -} - -static void -jme_set_multi(struct net_device *netdev) -{ - struct jme_adapter *jme = netdev_priv(netdev); - u32 mc_hash[2] = {}; - - spin_lock_bh(&jme->rxmcs_lock); - - jme->reg_rxmcs |= RXMCS_BRDFRAME | RXMCS_UNIFRAME; - - if (netdev->flags & IFF_PROMISC) { - jme->reg_rxmcs |= RXMCS_ALLFRAME; - } else if (netdev->flags & IFF_ALLMULTI) { - jme->reg_rxmcs |= RXMCS_ALLMULFRAME; - } else if (netdev->flags & IFF_MULTICAST) { - struct netdev_hw_addr *ha; - int bit_nr; - - jme->reg_rxmcs |= RXMCS_MULFRAME | RXMCS_MULFILTERED; - netdev_for_each_mc_addr(ha, netdev) { - bit_nr = ether_crc(ETH_ALEN, ha->addr) & 0x3F; - mc_hash[bit_nr >> 5] |= 1 << (bit_nr & 0x1F); - } - - jwrite32(jme, JME_RXMCHT_LO, mc_hash[0]); - jwrite32(jme, JME_RXMCHT_HI, mc_hash[1]); - } - - wmb(); - jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); - - spin_unlock_bh(&jme->rxmcs_lock); -} - -static int -jme_change_mtu(struct net_device *netdev, int new_mtu) -{ - struct jme_adapter *jme = netdev_priv(netdev); - - if (new_mtu == jme->old_mtu) - return 0; - - if (((new_mtu + ETH_HLEN) > MAX_ETHERNET_JUMBO_PACKET_SIZE) || - ((new_mtu) < IPV6_MIN_MTU)) - return -EINVAL; - - if (new_mtu > 4000) { - jme->reg_rxcs &= ~RXCS_FIFOTHNP; - jme->reg_rxcs |= RXCS_FIFOTHNP_64QW; - jme_restart_rx_engine(jme); - } else { - jme->reg_rxcs &= ~RXCS_FIFOTHNP; - jme->reg_rxcs |= RXCS_FIFOTHNP_128QW; - jme_restart_rx_engine(jme); - } - - netdev->mtu = new_mtu; - netdev_update_features(netdev); - - jme_reset_link(jme); - - return 0; -} - -static void -jme_tx_timeout(struct net_device *netdev) -{ - struct jme_adapter *jme = netdev_priv(netdev); - - jme->phylink = 0; - jme_reset_phy_processor(jme); - if (test_bit(JME_FLAG_SSET, &jme->flags)) - jme_set_settings(netdev, &jme->old_ecmd); - - /* - * Force to Reset the link again - */ - jme_reset_link(jme); -} - -static inline void jme_pause_rx(struct jme_adapter *jme) -{ - atomic_dec(&jme->link_changing); - - jme_set_rx_pcc(jme, PCC_OFF); - if (test_bit(JME_FLAG_POLL, &jme->flags)) { - JME_NAPI_DISABLE(jme); - } else { - tasklet_disable(&jme->rxclean_task); - tasklet_disable(&jme->rxempty_task); - } -} - -static inline void jme_resume_rx(struct jme_adapter *jme) -{ - struct dynpcc_info *dpi = &(jme->dpi); - - if (test_bit(JME_FLAG_POLL, &jme->flags)) { - JME_NAPI_ENABLE(jme); - } else { - tasklet_hi_enable(&jme->rxclean_task); - tasklet_hi_enable(&jme->rxempty_task); - } - dpi->cur = PCC_P1; - dpi->attempt = PCC_P1; - dpi->cnt = 0; - jme_set_rx_pcc(jme, PCC_P1); - - atomic_inc(&jme->link_changing); -} - -static void -jme_get_drvinfo(struct net_device *netdev, - struct ethtool_drvinfo *info) -{ - struct jme_adapter *jme = netdev_priv(netdev); - - strcpy(info->driver, DRV_NAME); - strcpy(info->version, DRV_VERSION); - strcpy(info->bus_info, pci_name(jme->pdev)); -} - -static int -jme_get_regs_len(struct net_device *netdev) -{ - return JME_REG_LEN; -} - -static void -mmapio_memcpy(struct jme_adapter *jme, u32 *p, u32 reg, int len) -{ - int i; - - for (i = 0 ; i < len ; i += 4) - p[i >> 2] = jread32(jme, reg + i); -} - -static void -mdio_memcpy(struct jme_adapter *jme, u32 *p, int reg_nr) -{ - int i; - u16 *p16 = (u16 *)p; - - for (i = 0 ; i < reg_nr ; ++i) - p16[i] = jme_mdio_read(jme->dev, jme->mii_if.phy_id, i); -} - -static void -jme_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) -{ - struct jme_adapter *jme = netdev_priv(netdev); - u32 *p32 = (u32 *)p; - - memset(p, 0xFF, JME_REG_LEN); - - regs->version = 1; - mmapio_memcpy(jme, p32, JME_MAC, JME_MAC_LEN); - - p32 += 0x100 >> 2; - mmapio_memcpy(jme, p32, JME_PHY, JME_PHY_LEN); - - p32 += 0x100 >> 2; - mmapio_memcpy(jme, p32, JME_MISC, JME_MISC_LEN); - - p32 += 0x100 >> 2; - mmapio_memcpy(jme, p32, JME_RSS, JME_RSS_LEN); - - p32 += 0x100 >> 2; - mdio_memcpy(jme, p32, JME_PHY_REG_NR); -} - -static int -jme_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) -{ - struct jme_adapter *jme = netdev_priv(netdev); - - ecmd->tx_coalesce_usecs = PCC_TX_TO; - ecmd->tx_max_coalesced_frames = PCC_TX_CNT; - - if (test_bit(JME_FLAG_POLL, &jme->flags)) { - ecmd->use_adaptive_rx_coalesce = false; - ecmd->rx_coalesce_usecs = 0; - ecmd->rx_max_coalesced_frames = 0; - return 0; - } - - ecmd->use_adaptive_rx_coalesce = true; - - switch (jme->dpi.cur) { - case PCC_P1: - ecmd->rx_coalesce_usecs = PCC_P1_TO; - ecmd->rx_max_coalesced_frames = PCC_P1_CNT; - break; - case PCC_P2: - ecmd->rx_coalesce_usecs = PCC_P2_TO; - ecmd->rx_max_coalesced_frames = PCC_P2_CNT; - break; - case PCC_P3: - ecmd->rx_coalesce_usecs = PCC_P3_TO; - ecmd->rx_max_coalesced_frames = PCC_P3_CNT; - break; - default: - break; - } - - return 0; -} - -static int -jme_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) -{ - struct jme_adapter *jme = netdev_priv(netdev); - struct dynpcc_info *dpi = &(jme->dpi); - - if (netif_running(netdev)) - return -EBUSY; - - if (ecmd->use_adaptive_rx_coalesce && - test_bit(JME_FLAG_POLL, &jme->flags)) { - clear_bit(JME_FLAG_POLL, &jme->flags); - jme->jme_rx = netif_rx; - dpi->cur = PCC_P1; - dpi->attempt = PCC_P1; - dpi->cnt = 0; - jme_set_rx_pcc(jme, PCC_P1); - jme_interrupt_mode(jme); - } else if (!(ecmd->use_adaptive_rx_coalesce) && - !(test_bit(JME_FLAG_POLL, &jme->flags))) { - set_bit(JME_FLAG_POLL, &jme->flags); - jme->jme_rx = netif_receive_skb; - jme_interrupt_mode(jme); - } - - return 0; -} - -static void -jme_get_pauseparam(struct net_device *netdev, - struct ethtool_pauseparam *ecmd) -{ - struct jme_adapter *jme = netdev_priv(netdev); - u32 val; - - ecmd->tx_pause = (jme->reg_txpfc & TXPFC_PF_EN) != 0; - ecmd->rx_pause = (jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0; - - spin_lock_bh(&jme->phy_lock); - val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); - spin_unlock_bh(&jme->phy_lock); - - ecmd->autoneg = - (val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0; -} - -static int -jme_set_pauseparam(struct net_device *netdev, - struct ethtool_pauseparam *ecmd) -{ - struct jme_adapter *jme = netdev_priv(netdev); - u32 val; - - if (((jme->reg_txpfc & TXPFC_PF_EN) != 0) ^ - (ecmd->tx_pause != 0)) { - - if (ecmd->tx_pause) - jme->reg_txpfc |= TXPFC_PF_EN; - else - jme->reg_txpfc &= ~TXPFC_PF_EN; - - jwrite32(jme, JME_TXPFC, jme->reg_txpfc); - } - - spin_lock_bh(&jme->rxmcs_lock); - if (((jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0) ^ - (ecmd->rx_pause != 0)) { - - if (ecmd->rx_pause) - jme->reg_rxmcs |= RXMCS_FLOWCTRL; - else - jme->reg_rxmcs &= ~RXMCS_FLOWCTRL; - - jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); - } - spin_unlock_bh(&jme->rxmcs_lock); - - spin_lock_bh(&jme->phy_lock); - val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); - if (((val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0) ^ - (ecmd->autoneg != 0)) { - - if (ecmd->autoneg) - val |= (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); - else - val &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); - - jme_mdio_write(jme->dev, jme->mii_if.phy_id, - MII_ADVERTISE, val); - } - spin_unlock_bh(&jme->phy_lock); - - return 0; -} - -static void -jme_get_wol(struct net_device *netdev, - struct ethtool_wolinfo *wol) -{ - struct jme_adapter *jme = netdev_priv(netdev); - - wol->supported = WAKE_MAGIC | WAKE_PHY; - - wol->wolopts = 0; - - if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) - wol->wolopts |= WAKE_PHY; - - if (jme->reg_pmcs & PMCS_MFEN) - wol->wolopts |= WAKE_MAGIC; - -} - -static int -jme_set_wol(struct net_device *netdev, - struct ethtool_wolinfo *wol) -{ - struct jme_adapter *jme = netdev_priv(netdev); - - if (wol->wolopts & (WAKE_MAGICSECURE | - WAKE_UCAST | - WAKE_MCAST | - WAKE_BCAST | - WAKE_ARP)) - return -EOPNOTSUPP; - - jme->reg_pmcs = 0; - - if (wol->wolopts & WAKE_PHY) - jme->reg_pmcs |= PMCS_LFEN | PMCS_LREN; - - if (wol->wolopts & WAKE_MAGIC) - jme->reg_pmcs |= PMCS_MFEN; - - jwrite32(jme, JME_PMCS, jme->reg_pmcs); - device_set_wakeup_enable(&jme->pdev->dev, !!(jme->reg_pmcs)); - - return 0; -} - -static int -jme_get_settings(struct net_device *netdev, - struct ethtool_cmd *ecmd) -{ - struct jme_adapter *jme = netdev_priv(netdev); - int rc; - - spin_lock_bh(&jme->phy_lock); - rc = mii_ethtool_gset(&(jme->mii_if), ecmd); - spin_unlock_bh(&jme->phy_lock); - return rc; -} - -static int -jme_set_settings(struct net_device *netdev, - struct ethtool_cmd *ecmd) -{ - struct jme_adapter *jme = netdev_priv(netdev); - int rc, fdc = 0; - - if (ethtool_cmd_speed(ecmd) == SPEED_1000 - && ecmd->autoneg != AUTONEG_ENABLE) - return -EINVAL; - - /* - * Check If user changed duplex only while force_media. - * Hardware would not generate link change interrupt. - */ - if (jme->mii_if.force_media && - ecmd->autoneg != AUTONEG_ENABLE && - (jme->mii_if.full_duplex != ecmd->duplex)) - fdc = 1; - - spin_lock_bh(&jme->phy_lock); - rc = mii_ethtool_sset(&(jme->mii_if), ecmd); - spin_unlock_bh(&jme->phy_lock); - - if (!rc) { - if (fdc) - jme_reset_link(jme); - jme->old_ecmd = *ecmd; - set_bit(JME_FLAG_SSET, &jme->flags); - } - - return rc; -} - -static int -jme_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) -{ - int rc; - struct jme_adapter *jme = netdev_priv(netdev); - struct mii_ioctl_data *mii_data = if_mii(rq); - unsigned int duplex_chg; - - if (cmd == SIOCSMIIREG) { - u16 val = mii_data->val_in; - if (!(val & (BMCR_RESET|BMCR_ANENABLE)) && - (val & BMCR_SPEED1000)) - return -EINVAL; - } - - spin_lock_bh(&jme->phy_lock); - rc = generic_mii_ioctl(&jme->mii_if, mii_data, cmd, &duplex_chg); - spin_unlock_bh(&jme->phy_lock); - - if (!rc && (cmd == SIOCSMIIREG)) { - if (duplex_chg) - jme_reset_link(jme); - jme_get_settings(netdev, &jme->old_ecmd); - set_bit(JME_FLAG_SSET, &jme->flags); - } - - return rc; -} - -static u32 -jme_get_link(struct net_device *netdev) -{ - struct jme_adapter *jme = netdev_priv(netdev); - return jread32(jme, JME_PHY_LINK) & PHY_LINK_UP; -} - -static u32 -jme_get_msglevel(struct net_device *netdev) -{ - struct jme_adapter *jme = netdev_priv(netdev); - return jme->msg_enable; -} - -static void -jme_set_msglevel(struct net_device *netdev, u32 value) -{ - struct jme_adapter *jme = netdev_priv(netdev); - jme->msg_enable = value; -} - -static u32 -jme_fix_features(struct net_device *netdev, u32 features) -{ - if (netdev->mtu > 1900) - features &= ~(NETIF_F_ALL_TSO | NETIF_F_ALL_CSUM); - return features; -} - -static int -jme_set_features(struct net_device *netdev, u32 features) -{ - struct jme_adapter *jme = netdev_priv(netdev); - - spin_lock_bh(&jme->rxmcs_lock); - if (features & NETIF_F_RXCSUM) - jme->reg_rxmcs |= RXMCS_CHECKSUM; - else - jme->reg_rxmcs &= ~RXMCS_CHECKSUM; - jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); - spin_unlock_bh(&jme->rxmcs_lock); - - return 0; -} - -static int -jme_nway_reset(struct net_device *netdev) -{ - struct jme_adapter *jme = netdev_priv(netdev); - jme_restart_an(jme); - return 0; -} - -static u8 -jme_smb_read(struct jme_adapter *jme, unsigned int addr) -{ - u32 val; - int to; - - val = jread32(jme, JME_SMBCSR); - to = JME_SMB_BUSY_TIMEOUT; - while ((val & SMBCSR_BUSY) && --to) { - msleep(1); - val = jread32(jme, JME_SMBCSR); - } - if (!to) { - netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); - return 0xFF; - } - - jwrite32(jme, JME_SMBINTF, - ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | - SMBINTF_HWRWN_READ | - SMBINTF_HWCMD); - - val = jread32(jme, JME_SMBINTF); - to = JME_SMB_BUSY_TIMEOUT; - while ((val & SMBINTF_HWCMD) && --to) { - msleep(1); - val = jread32(jme, JME_SMBINTF); - } - if (!to) { - netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); - return 0xFF; - } - - return (val & SMBINTF_HWDATR) >> SMBINTF_HWDATR_SHIFT; -} - -static void -jme_smb_write(struct jme_adapter *jme, unsigned int addr, u8 data) -{ - u32 val; - int to; - - val = jread32(jme, JME_SMBCSR); - to = JME_SMB_BUSY_TIMEOUT; - while ((val & SMBCSR_BUSY) && --to) { - msleep(1); - val = jread32(jme, JME_SMBCSR); - } - if (!to) { - netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); - return; - } - - jwrite32(jme, JME_SMBINTF, - ((data << SMBINTF_HWDATW_SHIFT) & SMBINTF_HWDATW) | - ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | - SMBINTF_HWRWN_WRITE | - SMBINTF_HWCMD); - - val = jread32(jme, JME_SMBINTF); - to = JME_SMB_BUSY_TIMEOUT; - while ((val & SMBINTF_HWCMD) && --to) { - msleep(1); - val = jread32(jme, JME_SMBINTF); - } - if (!to) { - netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); - return; - } - - mdelay(2); -} - -static int -jme_get_eeprom_len(struct net_device *netdev) -{ - struct jme_adapter *jme = netdev_priv(netdev); - u32 val; - val = jread32(jme, JME_SMBCSR); - return (val & SMBCSR_EEPROMD) ? JME_SMB_LEN : 0; -} - -static int -jme_get_eeprom(struct net_device *netdev, - struct ethtool_eeprom *eeprom, u8 *data) -{ - struct jme_adapter *jme = netdev_priv(netdev); - int i, offset = eeprom->offset, len = eeprom->len; - - /* - * ethtool will check the boundary for us - */ - eeprom->magic = JME_EEPROM_MAGIC; - for (i = 0 ; i < len ; ++i) - data[i] = jme_smb_read(jme, i + offset); - - return 0; -} - -static int -jme_set_eeprom(struct net_device *netdev, - struct ethtool_eeprom *eeprom, u8 *data) -{ - struct jme_adapter *jme = netdev_priv(netdev); - int i, offset = eeprom->offset, len = eeprom->len; - - if (eeprom->magic != JME_EEPROM_MAGIC) - return -EINVAL; - - /* - * ethtool will check the boundary for us - */ - for (i = 0 ; i < len ; ++i) - jme_smb_write(jme, i + offset, data[i]); - - return 0; -} - -static const struct ethtool_ops jme_ethtool_ops = { - .get_drvinfo = jme_get_drvinfo, - .get_regs_len = jme_get_regs_len, - .get_regs = jme_get_regs, - .get_coalesce = jme_get_coalesce, - .set_coalesce = jme_set_coalesce, - .get_pauseparam = jme_get_pauseparam, - .set_pauseparam = jme_set_pauseparam, - .get_wol = jme_get_wol, - .set_wol = jme_set_wol, - .get_settings = jme_get_settings, - .set_settings = jme_set_settings, - .get_link = jme_get_link, - .get_msglevel = jme_get_msglevel, - .set_msglevel = jme_set_msglevel, - .nway_reset = jme_nway_reset, - .get_eeprom_len = jme_get_eeprom_len, - .get_eeprom = jme_get_eeprom, - .set_eeprom = jme_set_eeprom, -}; - -static int -jme_pci_dma64(struct pci_dev *pdev) -{ - if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && - !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) - if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) - return 1; - - if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && - !pci_set_dma_mask(pdev, DMA_BIT_MASK(40))) - if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40))) - return 1; - - if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) - if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) - return 0; - - return -1; -} - -static inline void -jme_phy_init(struct jme_adapter *jme) -{ - u16 reg26; - - reg26 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 26); - jme_mdio_write(jme->dev, jme->mii_if.phy_id, 26, reg26 | 0x1000); -} - -static inline void -jme_check_hw_ver(struct jme_adapter *jme) -{ - u32 chipmode; - - chipmode = jread32(jme, JME_CHIPMODE); - - jme->fpgaver = (chipmode & CM_FPGAVER_MASK) >> CM_FPGAVER_SHIFT; - jme->chiprev = (chipmode & CM_CHIPREV_MASK) >> CM_CHIPREV_SHIFT; - jme->chip_main_rev = jme->chiprev & 0xF; - jme->chip_sub_rev = (jme->chiprev >> 4) & 0xF; -} - -static const struct net_device_ops jme_netdev_ops = { - .ndo_open = jme_open, - .ndo_stop = jme_close, - .ndo_validate_addr = eth_validate_addr, - .ndo_do_ioctl = jme_ioctl, - .ndo_start_xmit = jme_start_xmit, - .ndo_set_mac_address = jme_set_macaddr, - .ndo_set_multicast_list = jme_set_multi, - .ndo_change_mtu = jme_change_mtu, - .ndo_tx_timeout = jme_tx_timeout, - .ndo_fix_features = jme_fix_features, - .ndo_set_features = jme_set_features, -}; - -static int __devinit -jme_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - int rc = 0, using_dac, i; - struct net_device *netdev; - struct jme_adapter *jme; - u16 bmcr, bmsr; - u32 apmc; - - /* - * set up PCI device basics - */ - rc = pci_enable_device(pdev); - if (rc) { - pr_err("Cannot enable PCI device\n"); - goto err_out; - } - - using_dac = jme_pci_dma64(pdev); - if (using_dac < 0) { - pr_err("Cannot set PCI DMA Mask\n"); - rc = -EIO; - goto err_out_disable_pdev; - } - - if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { - pr_err("No PCI resource region found\n"); - rc = -ENOMEM; - goto err_out_disable_pdev; - } - - rc = pci_request_regions(pdev, DRV_NAME); - if (rc) { - pr_err("Cannot obtain PCI resource region\n"); - goto err_out_disable_pdev; - } - - pci_set_master(pdev); - - /* - * alloc and init net device - */ - netdev = alloc_etherdev(sizeof(*jme)); - if (!netdev) { - pr_err("Cannot allocate netdev structure\n"); - rc = -ENOMEM; - goto err_out_release_regions; - } - netdev->netdev_ops = &jme_netdev_ops; - netdev->ethtool_ops = &jme_ethtool_ops; - netdev->watchdog_timeo = TX_TIMEOUT; - netdev->hw_features = NETIF_F_IP_CSUM | - NETIF_F_IPV6_CSUM | - NETIF_F_SG | - NETIF_F_TSO | - NETIF_F_TSO6 | - NETIF_F_RXCSUM; - netdev->features = NETIF_F_IP_CSUM | - NETIF_F_IPV6_CSUM | - NETIF_F_SG | - NETIF_F_TSO | - NETIF_F_TSO6 | - NETIF_F_HW_VLAN_TX | - NETIF_F_HW_VLAN_RX; - if (using_dac) - netdev->features |= NETIF_F_HIGHDMA; - - SET_NETDEV_DEV(netdev, &pdev->dev); - pci_set_drvdata(pdev, netdev); - - /* - * init adapter info - */ - jme = netdev_priv(netdev); - jme->pdev = pdev; - jme->dev = netdev; - jme->jme_rx = netif_rx; - jme->old_mtu = netdev->mtu = 1500; - jme->phylink = 0; - jme->tx_ring_size = 1 << 10; - jme->tx_ring_mask = jme->tx_ring_size - 1; - jme->tx_wake_threshold = 1 << 9; - jme->rx_ring_size = 1 << 9; - jme->rx_ring_mask = jme->rx_ring_size - 1; - jme->msg_enable = JME_DEF_MSG_ENABLE; - jme->regs = ioremap(pci_resource_start(pdev, 0), - pci_resource_len(pdev, 0)); - if (!(jme->regs)) { - pr_err("Mapping PCI resource region error\n"); - rc = -ENOMEM; - goto err_out_free_netdev; - } - - if (no_pseudohp) { - apmc = jread32(jme, JME_APMC) & ~JME_APMC_PSEUDO_HP_EN; - jwrite32(jme, JME_APMC, apmc); - } else if (force_pseudohp) { - apmc = jread32(jme, JME_APMC) | JME_APMC_PSEUDO_HP_EN; - jwrite32(jme, JME_APMC, apmc); - } - - NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, jme->rx_ring_size >> 2) - - spin_lock_init(&jme->phy_lock); - spin_lock_init(&jme->macaddr_lock); - spin_lock_init(&jme->rxmcs_lock); - - atomic_set(&jme->link_changing, 1); - atomic_set(&jme->rx_cleaning, 1); - atomic_set(&jme->tx_cleaning, 1); - atomic_set(&jme->rx_empty, 1); - - tasklet_init(&jme->pcc_task, - jme_pcc_tasklet, - (unsigned long) jme); - tasklet_init(&jme->linkch_task, - jme_link_change_tasklet, - (unsigned long) jme); - tasklet_init(&jme->txclean_task, - jme_tx_clean_tasklet, - (unsigned long) jme); - tasklet_init(&jme->rxclean_task, - jme_rx_clean_tasklet, - (unsigned long) jme); - tasklet_init(&jme->rxempty_task, - jme_rx_empty_tasklet, - (unsigned long) jme); - tasklet_disable_nosync(&jme->linkch_task); - tasklet_disable_nosync(&jme->txclean_task); - tasklet_disable_nosync(&jme->rxclean_task); - tasklet_disable_nosync(&jme->rxempty_task); - jme->dpi.cur = PCC_P1; - - jme->reg_ghc = 0; - jme->reg_rxcs = RXCS_DEFAULT; - jme->reg_rxmcs = RXMCS_DEFAULT; - jme->reg_txpfc = 0; - jme->reg_pmcs = PMCS_MFEN; - jme->reg_gpreg1 = GPREG1_DEFAULT; - - if (jme->reg_rxmcs & RXMCS_CHECKSUM) - netdev->features |= NETIF_F_RXCSUM; - - /* - * Get Max Read Req Size from PCI Config Space - */ - pci_read_config_byte(pdev, PCI_DCSR_MRRS, &jme->mrrs); - jme->mrrs &= PCI_DCSR_MRRS_MASK; - switch (jme->mrrs) { - case MRRS_128B: - jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_128B; - break; - case MRRS_256B: - jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_256B; - break; - default: - jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_512B; - break; - } - - /* - * Must check before reset_mac_processor - */ - jme_check_hw_ver(jme); - jme->mii_if.dev = netdev; - if (jme->fpgaver) { - jme->mii_if.phy_id = 0; - for (i = 1 ; i < 32 ; ++i) { - bmcr = jme_mdio_read(netdev, i, MII_BMCR); - bmsr = jme_mdio_read(netdev, i, MII_BMSR); - if (bmcr != 0xFFFFU && (bmcr != 0 || bmsr != 0)) { - jme->mii_if.phy_id = i; - break; - } - } - - if (!jme->mii_if.phy_id) { - rc = -EIO; - pr_err("Can not find phy_id\n"); - goto err_out_unmap; - } - - jme->reg_ghc |= GHC_LINK_POLL; - } else { - jme->mii_if.phy_id = 1; - } - if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) - jme->mii_if.supports_gmii = true; - else - jme->mii_if.supports_gmii = false; - jme->mii_if.phy_id_mask = 0x1F; - jme->mii_if.reg_num_mask = 0x1F; - jme->mii_if.mdio_read = jme_mdio_read; - jme->mii_if.mdio_write = jme_mdio_write; - - jme_clear_pm(jme); - pci_set_power_state(jme->pdev, PCI_D0); - device_set_wakeup_enable(&pdev->dev, true); - - jme_set_phyfifo_5level(jme); - jme->pcirev = pdev->revision; - if (!jme->fpgaver) - jme_phy_init(jme); - jme_phy_off(jme); - - /* - * Reset MAC processor and reload EEPROM for MAC Address - */ - jme_reset_mac_processor(jme); - rc = jme_reload_eeprom(jme); - if (rc) { - pr_err("Reload eeprom for reading MAC Address error\n"); - goto err_out_unmap; - } - jme_load_macaddr(netdev); - - /* - * Tell stack that we are not ready to work until open() - */ - netif_carrier_off(netdev); - - rc = register_netdev(netdev); - if (rc) { - pr_err("Cannot register net device\n"); - goto err_out_unmap; - } - - netif_info(jme, probe, jme->dev, "%s%s chiprev:%x pcirev:%x macaddr:%pM\n", - (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) ? - "JMC250 Gigabit Ethernet" : - (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC260) ? - "JMC260 Fast Ethernet" : "Unknown", - (jme->fpgaver != 0) ? " (FPGA)" : "", - (jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev, - jme->pcirev, netdev->dev_addr); - - return 0; - -err_out_unmap: - iounmap(jme->regs); -err_out_free_netdev: - pci_set_drvdata(pdev, NULL); - free_netdev(netdev); -err_out_release_regions: - pci_release_regions(pdev); -err_out_disable_pdev: - pci_disable_device(pdev); -err_out: - return rc; -} - -static void __devexit -jme_remove_one(struct pci_dev *pdev) -{ - struct net_device *netdev = pci_get_drvdata(pdev); - struct jme_adapter *jme = netdev_priv(netdev); - - unregister_netdev(netdev); - iounmap(jme->regs); - pci_set_drvdata(pdev, NULL); - free_netdev(netdev); - pci_release_regions(pdev); - pci_disable_device(pdev); - -} - -static void -jme_shutdown(struct pci_dev *pdev) -{ - struct net_device *netdev = pci_get_drvdata(pdev); - struct jme_adapter *jme = netdev_priv(netdev); - - jme_powersave_phy(jme); - pci_pme_active(pdev, true); -} - -#ifdef CONFIG_PM_SLEEP -static int -jme_suspend(struct device *dev) -{ - struct pci_dev *pdev = to_pci_dev(dev); - struct net_device *netdev = pci_get_drvdata(pdev); - struct jme_adapter *jme = netdev_priv(netdev); - - atomic_dec(&jme->link_changing); - - netif_device_detach(netdev); - netif_stop_queue(netdev); - jme_stop_irq(jme); - - tasklet_disable(&jme->txclean_task); - tasklet_disable(&jme->rxclean_task); - tasklet_disable(&jme->rxempty_task); - - if (netif_carrier_ok(netdev)) { - if (test_bit(JME_FLAG_POLL, &jme->flags)) - jme_polling_mode(jme); - - jme_stop_pcc_timer(jme); - jme_disable_rx_engine(jme); - jme_disable_tx_engine(jme); - jme_reset_mac_processor(jme); - jme_free_rx_resources(jme); - jme_free_tx_resources(jme); - netif_carrier_off(netdev); - jme->phylink = 0; - } - - tasklet_enable(&jme->txclean_task); - tasklet_hi_enable(&jme->rxclean_task); - tasklet_hi_enable(&jme->rxempty_task); - - jme_powersave_phy(jme); - - return 0; -} - -static int -jme_resume(struct device *dev) -{ - struct pci_dev *pdev = to_pci_dev(dev); - struct net_device *netdev = pci_get_drvdata(pdev); - struct jme_adapter *jme = netdev_priv(netdev); - - jme_clear_pm(jme); - jme_phy_on(jme); - if (test_bit(JME_FLAG_SSET, &jme->flags)) - jme_set_settings(netdev, &jme->old_ecmd); - else - jme_reset_phy_processor(jme); - - jme_start_irq(jme); - netif_device_attach(netdev); - - atomic_inc(&jme->link_changing); - - jme_reset_link(jme); - - return 0; -} - -static SIMPLE_DEV_PM_OPS(jme_pm_ops, jme_suspend, jme_resume); -#define JME_PM_OPS (&jme_pm_ops) - -#else - -#define JME_PM_OPS NULL -#endif - -static DEFINE_PCI_DEVICE_TABLE(jme_pci_tbl) = { - { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC250) }, - { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC260) }, - { } -}; - -static struct pci_driver jme_driver = { - .name = DRV_NAME, - .id_table = jme_pci_tbl, - .probe = jme_init_one, - .remove = __devexit_p(jme_remove_one), - .shutdown = jme_shutdown, - .driver.pm = JME_PM_OPS, -}; - -static int __init -jme_init_module(void) -{ - pr_info("JMicron JMC2XX ethernet driver version %s\n", DRV_VERSION); - return pci_register_driver(&jme_driver); -} - -static void __exit -jme_cleanup_module(void) -{ - pci_unregister_driver(&jme_driver); -} - -module_init(jme_init_module); -module_exit(jme_cleanup_module); - -MODULE_AUTHOR("Guo-Fu Tseng <cooldavid@cooldavid.org>"); -MODULE_DESCRIPTION("JMicron JMC2x0 PCI Express Ethernet driver"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(DRV_VERSION); -MODULE_DEVICE_TABLE(pci, jme_pci_tbl); - |