diff options
author | Jeff Garzik <jgarzik@pobox.com> | 2005-06-27 22:49:47 -0400 |
---|---|---|
committer | Jeff Garzik <jgarzik@pobox.com> | 2005-06-27 22:49:47 -0400 |
commit | 245ac8738b0b840552d56b842e70e750d65911cc (patch) | |
tree | 2609d6b0a8c603804d71aed65d7f74097ebe0e58 | |
parent | 716b43303df605510399d6da0d0dd4e2ea376e7c (diff) | |
parent | a5fe736eaf9bae1b45317313de04b564441b94f2 (diff) |
Merge upstream net/ieee80211.h changes into 'ieee80211' branch.
-rw-r--r-- | drivers/net/skge.c | 1710 | ||||
-rw-r--r-- | drivers/net/skge.h | 586 | ||||
-rw-r--r-- | include/linux/etherdevice.h | 2 | ||||
-rw-r--r-- | include/net/ieee80211.h | 11 |
4 files changed, 934 insertions, 1375 deletions
diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 30e8d589d16..3dbb1cb09ed 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -7,7 +7,7 @@ * of the original driver such as link fail-over and link management because * those should be done at higher levels. * - * Copyright (C) 2004, Stephen Hemminger <shemminger@osdl.org> + * Copyright (C) 2004, 2005 Stephen Hemminger <shemminger@osdl.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 @@ -42,19 +42,20 @@ #include "skge.h" #define DRV_NAME "skge" -#define DRV_VERSION "0.6" +#define DRV_VERSION "0.7" #define PFX DRV_NAME " " #define DEFAULT_TX_RING_SIZE 128 #define DEFAULT_RX_RING_SIZE 512 #define MAX_TX_RING_SIZE 1024 #define MAX_RX_RING_SIZE 4096 +#define RX_COPY_THRESHOLD 128 +#define RX_BUF_SIZE 1536 #define PHY_RETRIES 1000 #define ETH_JUMBO_MTU 9000 #define TX_WATCHDOG (5 * HZ) #define NAPI_WEIGHT 64 #define BLINK_HZ (HZ/4) -#define LINK_POLL_HZ (HZ/10) MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver"); MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>"); @@ -70,28 +71,17 @@ module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); static const struct pci_device_id skge_id_table[] = { - { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940, - PCI_ANY_ID, PCI_ANY_ID }, - { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940B, - PCI_ANY_ID, PCI_ANY_ID }, - { PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE, - PCI_ANY_ID, PCI_ANY_ID }, - { PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU, - PCI_ANY_ID, PCI_ANY_ID }, - { PCI_VENDOR_ID_SYSKONNECT, 0x9E00, /* SK-9Exx */ - PCI_ANY_ID, PCI_ANY_ID }, - { PCI_VENDOR_ID_DLINK, PCI_DEVICE_ID_DLINK_DGE510T, - PCI_ANY_ID, PCI_ANY_ID }, - { PCI_VENDOR_ID_MARVELL, 0x4320, /* Gigabit Ethernet Controller */ - PCI_ANY_ID, PCI_ANY_ID }, - { PCI_VENDOR_ID_MARVELL, 0x5005, /* Marvell (11ab), Belkin */ - PCI_ANY_ID, PCI_ANY_ID }, - { PCI_VENDOR_ID_CNET, PCI_DEVICE_ID_CNET_GIGACARD, - PCI_ANY_ID, PCI_ANY_ID }, - { PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1032, - PCI_ANY_ID, PCI_ANY_ID }, - { PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1064, - PCI_ANY_ID, PCI_ANY_ID }, + { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940) }, + { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940B) }, + { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE) }, + { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU) }, + { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */ + { PCI_DEVICE(PCI_VENDOR_ID_DLINK, PCI_DEVICE_ID_DLINK_DGE510T), }, + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) }, + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */ + { PCI_DEVICE(PCI_VENDOR_ID_CNET, PCI_DEVICE_ID_CNET_GIGACARD) }, + { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1032) }, + { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1064) }, { 0 } }; MODULE_DEVICE_TABLE(pci, skge_id_table); @@ -99,19 +89,22 @@ MODULE_DEVICE_TABLE(pci, skge_id_table); static int skge_up(struct net_device *dev); static int skge_down(struct net_device *dev); static void skge_tx_clean(struct skge_port *skge); -static void skge_xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); -static void skge_gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); +static void xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); +static void gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); static void genesis_get_stats(struct skge_port *skge, u64 *data); static void yukon_get_stats(struct skge_port *skge, u64 *data); static void yukon_init(struct skge_hw *hw, int port); static void yukon_reset(struct skge_hw *hw, int port); static void genesis_mac_init(struct skge_hw *hw, int port); static void genesis_reset(struct skge_hw *hw, int port); +static void genesis_link_up(struct skge_port *skge); +/* Avoid conditionals by using array */ static const int txqaddr[] = { Q_XA1, Q_XA2 }; static const int rxqaddr[] = { Q_R1, Q_R2 }; static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F }; static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F }; +static const u32 portirqmask[] = { IS_PORT_1, IS_PORT_2 }; /* Don't need to look at whole 16K. * last interesting register is descriptor poll timer. @@ -154,7 +147,7 @@ static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs, static int wol_supported(const struct skge_hw *hw) { return !((hw->chip_id == CHIP_ID_GENESIS || - (hw->chip_id == CHIP_ID_YUKON && chip_rev(hw) == 0))); + (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0))); } static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) @@ -170,7 +163,7 @@ static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) struct skge_port *skge = netdev_priv(dev); struct skge_hw *hw = skge->hw; - if(wol->wolopts != WAKE_MAGIC && wol->wolopts != 0) + if (wol->wolopts != WAKE_MAGIC && wol->wolopts != 0) return -EOPNOTSUPP; if (wol->wolopts == WAKE_MAGIC && !wol_supported(hw)) @@ -190,6 +183,36 @@ static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) return 0; } +/* Determine supported/adverised modes based on hardware. + * Note: ethtoool ADVERTISED_xxx == SUPPORTED_xxx + */ +static u32 skge_supported_modes(const struct skge_hw *hw) +{ + u32 supported; + + if (iscopper(hw)) { + supported = SUPPORTED_10baseT_Half + | SUPPORTED_10baseT_Full + | SUPPORTED_100baseT_Half + | SUPPORTED_100baseT_Full + | SUPPORTED_1000baseT_Half + | SUPPORTED_1000baseT_Full + | SUPPORTED_Autoneg| SUPPORTED_TP; + + if (hw->chip_id == CHIP_ID_GENESIS) + supported &= ~(SUPPORTED_10baseT_Half + | SUPPORTED_10baseT_Full + | SUPPORTED_100baseT_Half + | SUPPORTED_100baseT_Full); + + else if (hw->chip_id == CHIP_ID_YUKON) + supported &= ~SUPPORTED_1000baseT_Half; + } else + supported = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE + | SUPPORTED_Autoneg; + + return supported; +} static int skge_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) @@ -198,38 +221,13 @@ static int skge_get_settings(struct net_device *dev, struct skge_hw *hw = skge->hw; ecmd->transceiver = XCVR_INTERNAL; + ecmd->supported = skge_supported_modes(hw); if (iscopper(hw)) { - if (hw->chip_id == CHIP_ID_GENESIS) - ecmd->supported = SUPPORTED_1000baseT_Full - | SUPPORTED_1000baseT_Half - | SUPPORTED_Autoneg | SUPPORTED_TP; - else { - ecmd->supported = SUPPORTED_10baseT_Half - | SUPPORTED_10baseT_Full - | SUPPORTED_100baseT_Half - | SUPPORTED_100baseT_Full - | SUPPORTED_1000baseT_Half - | SUPPORTED_1000baseT_Full - | SUPPORTED_Autoneg| SUPPORTED_TP; - - if (hw->chip_id == CHIP_ID_YUKON) - ecmd->supported &= ~SUPPORTED_1000baseT_Half; - - else if (hw->chip_id == CHIP_ID_YUKON_FE) - ecmd->supported &= ~(SUPPORTED_1000baseT_Half - | SUPPORTED_1000baseT_Full); - } - ecmd->port = PORT_TP; ecmd->phy_address = hw->phy_addr; - } else { - ecmd->supported = SUPPORTED_1000baseT_Full - | SUPPORTED_FIBRE - | SUPPORTED_Autoneg; - + } else ecmd->port = PORT_FIBRE; - } ecmd->advertising = skge->advertising; ecmd->autoneg = skge->autoneg; @@ -238,65 +236,57 @@ static int skge_get_settings(struct net_device *dev, return 0; } -static u32 skge_modes(const struct skge_hw *hw) -{ - u32 modes = ADVERTISED_Autoneg - | ADVERTISED_1000baseT_Full | ADVERTISED_1000baseT_Half - | ADVERTISED_100baseT_Full | ADVERTISED_100baseT_Half - | ADVERTISED_10baseT_Full | ADVERTISED_10baseT_Half; - - if (iscopper(hw)) { - modes |= ADVERTISED_TP; - switch(hw->chip_id) { - case CHIP_ID_GENESIS: - modes &= ~(ADVERTISED_100baseT_Full - | ADVERTISED_100baseT_Half - | ADVERTISED_10baseT_Full - | ADVERTISED_10baseT_Half); - break; - - case CHIP_ID_YUKON: - modes &= ~ADVERTISED_1000baseT_Half; - break; - - case CHIP_ID_YUKON_FE: - modes &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full); - break; - } - } else { - modes |= ADVERTISED_FIBRE; - modes &= ~ADVERTISED_1000baseT_Half; - } - return modes; -} - static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) { struct skge_port *skge = netdev_priv(dev); const struct skge_hw *hw = skge->hw; + u32 supported = skge_supported_modes(hw); if (ecmd->autoneg == AUTONEG_ENABLE) { - if (ecmd->advertising & skge_modes(hw)) - return -EINVAL; + ecmd->advertising = supported; + skge->duplex = -1; + skge->speed = -1; } else { + u32 setting; + switch(ecmd->speed) { case SPEED_1000: - if (hw->chip_id == CHIP_ID_YUKON_FE) + if (ecmd->duplex == DUPLEX_FULL) + setting = SUPPORTED_1000baseT_Full; + else if (ecmd->duplex == DUPLEX_HALF) + setting = SUPPORTED_1000baseT_Half; + else return -EINVAL; break; case SPEED_100: + if (ecmd->duplex == DUPLEX_FULL) + setting = SUPPORTED_100baseT_Full; + else if (ecmd->duplex == DUPLEX_HALF) + setting = SUPPORTED_100baseT_Half; + else + return -EINVAL; + break; + case SPEED_10: - if (iscopper(hw) || hw->chip_id == CHIP_ID_GENESIS) + if (ecmd->duplex == DUPLEX_FULL) + setting = SUPPORTED_10baseT_Full; + else if (ecmd->duplex == DUPLEX_HALF) + setting = SUPPORTED_10baseT_Half; + else return -EINVAL; break; default: return -EINVAL; } + + if ((setting & supported) == 0) + return -EINVAL; + + skge->speed = ecmd->speed; + skge->duplex = ecmd->duplex; } skge->autoneg = ecmd->autoneg; - skge->speed = ecmd->speed; - skge->duplex = ecmd->duplex; skge->advertising = ecmd->advertising; if (netif_running(dev)) { @@ -393,7 +383,7 @@ static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data) { int i; - switch(stringset) { + switch (stringset) { case ETH_SS_STATS: for (i = 0; i < ARRAY_SIZE(skge_stats); i++) memcpy(data + i * ETH_GSTRING_LEN, @@ -511,14 +501,6 @@ static int skge_set_rx_csum(struct net_device *dev, u32 data) return 0; } -/* Only Yukon II supports TSO (not implemented yet) */ -static int skge_set_tso(struct net_device *dev, u32 data) -{ - if (data) - return -EOPNOTSUPP; - return 0; -} - static void skge_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *ecmd) { @@ -540,9 +522,9 @@ static int skge_set_pauseparam(struct net_device *dev, skge->autoneg = ecmd->autoneg; if (ecmd->rx_pause && ecmd->tx_pause) skge->flow_control = FLOW_MODE_SYMMETRIC; - else if(ecmd->rx_pause && !ecmd->tx_pause) + else if (ecmd->rx_pause && !ecmd->tx_pause) skge->flow_control = FLOW_MODE_REM_SEND; - else if(!ecmd->rx_pause && ecmd->tx_pause) + else if (!ecmd->rx_pause && ecmd->tx_pause) skge->flow_control = FLOW_MODE_LOC_SEND; else skge->flow_control = FLOW_MODE_NONE; @@ -559,8 +541,6 @@ static inline u32 hwkhz(const struct skge_hw *hw) { if (hw->chip_id == CHIP_ID_GENESIS) return 53215; /* or: 53.125 MHz */ - else if (hw->chip_id == CHIP_ID_YUKON_EC) - return 125000; /* or: 125.000 MHz */ else return 78215; /* or: 78.125 MHz */ } @@ -643,30 +623,18 @@ static int skge_set_coalesce(struct net_device *dev, static void skge_led_on(struct skge_hw *hw, int port) { if (hw->chip_id == CHIP_ID_GENESIS) { - skge_write8(hw, SKGEMAC_REG(port, LNK_LED_REG), LINKLED_ON); + skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON); skge_write8(hw, B0_LED, LED_STAT_ON); - skge_write8(hw, SKGEMAC_REG(port, RX_LED_TST), LED_T_ON); - skge_write32(hw, SKGEMAC_REG(port, RX_LED_VAL), 100); - skge_write8(hw, SKGEMAC_REG(port, RX_LED_CTRL), LED_START); + 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); - switch (hw->phy_type) { - case SK_PHY_BCOM: - skge_xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, - PHY_B_PEC_LED_ON); - break; - case SK_PHY_LONE: - skge_xm_phy_write(hw, port, PHY_LONE_LED_CFG, - 0x0800); - break; - default: - skge_write8(hw, SKGEMAC_REG(port, TX_LED_TST), LED_T_ON); - skge_write32(hw, SKGEMAC_REG(port, TX_LED_VAL), 100); - skge_write8(hw, SKGEMAC_REG(port, TX_LED_CTRL), LED_START); - } + /* For Broadcom Phy only */ + xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON); } else { - skge_gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); - skge_gm_phy_write(hw, port, PHY_MARV_LED_OVER, + 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) | @@ -678,28 +646,17 @@ static void skge_led_on(struct skge_hw *hw, int port) static void skge_led_off(struct skge_hw *hw, int port) { if (hw->chip_id == CHIP_ID_GENESIS) { - skge_write8(hw, SKGEMAC_REG(port, LNK_LED_REG), LINKLED_OFF); + skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); skge_write8(hw, B0_LED, LED_STAT_OFF); - skge_write32(hw, SKGEMAC_REG(port, RX_LED_VAL), 0); - skge_write8(hw, SKGEMAC_REG(port, RX_LED_CTRL), LED_T_OFF); + skge_write32(hw, SK_REG(port, RX_LED_VAL), 0); + skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF); - switch (hw->phy_type) { - case SK_PHY_BCOM: - skge_xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, - PHY_B_PEC_LED_OFF); - break; - case SK_PHY_LONE: - skge_xm_phy_write(hw, port, PHY_LONE_LED_CFG, - PHY_L_LC_LEDT); - break; - default: - skge_write32(hw, SKGEMAC_REG(port, TX_LED_VAL), 0); - skge_write8(hw, SKGEMAC_REG(port, TX_LED_CTRL), LED_T_OFF); - } + /* Broadcom only */ + xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF); } else { - skge_gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); - skge_gm_phy_write(hw, port, PHY_MARV_LED_OVER, + 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) | @@ -730,7 +687,7 @@ static int skge_phys_id(struct net_device *dev, u32 data) { struct skge_port *skge = netdev_priv(dev); - if(!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ)) + if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ)) data = (u32)(MAX_SCHEDULE_TIMEOUT / HZ); /* start blinking */ @@ -763,8 +720,6 @@ static struct ethtool_ops skge_ethtool_ops = { .set_pauseparam = skge_set_pauseparam, .get_coalesce = skge_get_coalesce, .set_coalesce = skge_set_coalesce, - .get_tso = ethtool_op_get_tso, - .set_tso = skge_set_tso, .get_sg = ethtool_op_get_sg, .set_sg = skge_set_sg, .get_tx_csum = ethtool_op_get_tx_csum, @@ -793,6 +748,7 @@ static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u64 base) for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) { e->desc = d; + e->skb = NULL; if (i == ring->count - 1) { e->next = ring->start; d->next_offset = base; @@ -806,24 +762,23 @@ static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u64 base) return 0; } -/* Setup buffer for receiving */ -static inline int skge_rx_alloc(struct skge_port *skge, - struct skge_element *e) +static struct sk_buff *skge_rx_alloc(struct net_device *dev, unsigned int size) { - unsigned long bufsize = skge->netdev->mtu + ETH_HLEN; /* VLAN? */ - struct skge_rx_desc *rd = e->desc; - struct sk_buff *skb; - u64 map; + struct sk_buff *skb = dev_alloc_skb(size); - skb = dev_alloc_skb(bufsize + NET_IP_ALIGN); - if (unlikely(!skb)) { - printk(KERN_DEBUG PFX "%s: out of memory for receive\n", - skge->netdev->name); - return -ENOMEM; + if (likely(skb)) { + skb->dev = dev; + skb_reserve(skb, NET_IP_ALIGN); } + return skb; +} - skb->dev = skge->netdev; - skb_reserve(skb, NET_IP_ALIGN); +/* 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); @@ -841,55 +796,69 @@ static inline int skge_rx_alloc(struct skge_port *skge, 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); - return 0; } -/* Free all unused buffers in receive ring, assumes receiver stopped */ +/* Resume receiving using existing skb, + * Note: DMA address is not changed by chip. + * MTU not changed while receiver active. + */ +static 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; - for (e = ring->to_clean; e != ring->to_use; e = e->next) { + e = ring->start; + do { struct skge_rx_desc *rd = e->desc; rd->control = 0; - - 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; - } - ring->to_clean = e; + 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_use is refill location - * to_clean is next received frame. - * - * if (to_use == to_clean) - * then ring all frames in ring need buffers - * if (to_use->next == to_clean) - * then ring all frames in ring have buffers + * For receive: to_clean is next received frame. */ static int skge_rx_fill(struct skge_port *skge) { struct skge_ring *ring = &skge->rx_ring; struct skge_element *e; - int ret = 0; + unsigned int bufsize = skge->rx_buf_size; - for (e = ring->to_use; e->next != ring->to_clean; e = e->next) { - if (skge_rx_alloc(skge, e)) { - ret = 1; - break; - } + e = ring->start; + do { + struct sk_buff *skb = skge_rx_alloc(skge->netdev, bufsize); - } - ring->to_use = e; + if (!skb) + return -ENOMEM; + + skge_rx_setup(skge, e, skb, bufsize); + } while ( (e = e->next) != ring->start); - return ret; + ring->to_clean = ring->start; + return 0; } static void skge_link_up(struct skge_port *skge) @@ -919,50 +888,50 @@ static void skge_link_down(struct skge_port *skge) printk(KERN_INFO PFX "%s: Link is down.\n", skge->netdev->name); } -static u16 skge_xm_phy_read(struct skge_hw *hw, int port, u16 reg) +static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg) { int i; u16 v; - skge_xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); - v = skge_xm_read16(hw, port, XM_PHY_DATA); - if (hw->phy_type != SK_PHY_XMAC) { - for (i = 0; i < PHY_RETRIES; i++) { - udelay(1); - if (skge_xm_read16(hw, port, XM_MMU_CMD) - & XM_MMU_PHY_RDY) - goto ready; - } + xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); + v = xm_read16(hw, port, XM_PHY_DATA); - printk(KERN_WARNING PFX "%s: phy read timed out\n", - hw->dev[port]->name); - return 0; - ready: - v = skge_xm_read16(hw, port, XM_PHY_DATA); + /* Need to wait for external PHY */ + for (i = 0; i < PHY_RETRIES; i++) { + udelay(1); + if (xm_read16(hw, port, XM_MMU_CMD) + & XM_MMU_PHY_RDY) + goto ready; } + printk(KERN_WARNING PFX "%s: phy read timed out\n", + hw->dev[port]->name); + return 0; + ready: + v = xm_read16(hw, port, XM_PHY_DATA); + return v; } -static void skge_xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) +static void xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) { int i; - skge_xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); + xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); for (i = 0; i < PHY_RETRIES; i++) { - if (!(skge_xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) + if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) goto ready; - cpu_relax(); + udelay(1); } printk(KERN_WARNING PFX "%s: phy write failed to come ready\n", hw->dev[port]->name); ready: - skge_xm_write16(hw, port, XM_PHY_DATA, val); + xm_write16(hw, port, XM_PHY_DATA, val); for (i = 0; i < PHY_RETRIES; i++) { udelay(1); - if (!(skge_xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) + if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) return; } printk(KERN_WARNING PFX "%s: phy write timed out\n", @@ -999,34 +968,112 @@ static void genesis_init(struct skge_hw *hw) static void genesis_reset(struct skge_hw *hw, int port) { - int i; - u64 zero = 0; + const u8 zero[8] = { 0 }; /* reset the statistics module */ - skge_xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT); - skge_xm_write16(hw, port, XM_IMSK, 0xffff); /* disable XMAC IRQs */ - skge_xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */ - skge_xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */ - skge_xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */ + xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT); + xm_write16(hw, port, XM_IMSK, 0xffff); /* disable XMAC IRQs */ + 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 all PHY IRQs */ - if (hw->phy_type == SK_PHY_BCOM) - skge_xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff); + /* disable Broadcom PHY IRQ */ + xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff); - skge_xm_outhash(hw, port, XM_HSM, (u8 *) &zero); - for (i = 0; i < 15; i++) - skge_xm_outaddr(hw, port, XM_EXM(i), (u8 *) &zero); - skge_xm_outhash(hw, port, XM_SRC_CHK, (u8 *) &zero); + xm_outhash(hw, port, XM_HSM, zero); } -static void genesis_mac_init(struct skge_hw *hw, int port) +/* 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_REM_SEND] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM, +}; + + +/* Check status of Broadcom phy link */ +static void bcom_check_link(struct skge_hw *hw, int port) { - struct skge_port *skge = netdev_priv(hw->dev[port]); + struct net_device *dev = hw->dev[port]; + struct skge_port *skge = netdev_priv(dev); + u16 status; + + /* read twice because of latch */ + (void) xm_phy_read(hw, port, PHY_BCOM_STAT); + status = xm_phy_read(hw, port, PHY_BCOM_STAT); + + pr_debug("bcom_check_link status=0x%x\n", status); + + if ((status & PHY_ST_LSYNC) == 0) { + u16 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); + /* dummy read to ensure writing */ + (void) xm_read16(hw, port, XM_MMU_CMD); + + if (netif_carrier_ok(dev)) + skge_link_down(skge); + } else { + if (skge->autoneg == AUTONEG_ENABLE && + (status & PHY_ST_AN_OVER)) { + u16 lpa = xm_phy_read(hw, port, PHY_BCOM_AUNE_LP); + u16 aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT); + + if (lpa & PHY_B_AN_RF) { + printk(KERN_NOTICE PFX "%s: remote fault\n", + dev->name); + return; + } + + /* 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_control = FLOW_MODE_SYMMETRIC; + break; + case PHY_B_AS_PRR: + skge->flow_control = FLOW_MODE_REM_SEND; + break; + case PHY_B_AS_PRT: + skge->flow_control = FLOW_MODE_LOC_SEND; + break; + default: + skge->flow_control = FLOW_MODE_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, int jumbo) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; int i; - u32 r; - u16 id1; - u16 ctrl1, ctrl2, ctrl3, ctrl4, ctrl5; + u16 id1, r, ext, ctl; /* magic workaround patterns for Broadcom */ static const struct { @@ -1042,16 +1089,120 @@ static void genesis_mac_init(struct skge_hw *hw, int port) { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 }, }; + pr_debug("bcom_phy_init\n"); + + /* 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 (jumbo) { + 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 interrrupt */ + xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); + + bcom_check_link(hw, port); +} + +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 }; + + /* 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); /* initialize Rx, Tx and Link LED */ - skge_write8(hw, SKGEMAC_REG(port, LNK_LED_REG), LINKLED_ON); - skge_write8(hw, SKGEMAC_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_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, SKGEMAC_REG(port, RX_LED_CTRL), LED_START); - skge_write8(hw, SKGEMAC_REG(port, TX_LED_CTRL), LED_START); + skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); + skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START); /* Unreset the XMAC. */ - skge_write16(hw, SKGEMAC_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST); + skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST); /* * Perform additional initialization for external PHYs, @@ -1059,67 +1210,56 @@ static void genesis_mac_init(struct skge_hw *hw, int port) * GMII mode. */ spin_lock_bh(&hw->phy_lock); - if (hw->phy_type != SK_PHY_XMAC) { - /* Take 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); - skge_read32(hw, B2_GP_IO); - - /* Enable GMII mode on the XMAC. */ - skge_xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD); - - id1 = skge_xm_phy_read(hw, port, PHY_XMAC_ID1); - - /* Optimize MDIO transfer by suppressing preamble. */ - skge_xm_write16(hw, port, XM_MMU_CMD, - skge_xm_read16(hw, port, XM_MMU_CMD) - | XM_MMU_NO_PRE); - - if (id1 == 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++) - skge_xm_phy_write(hw, port, - C0hack[i].reg, C0hack[i].val); - - } else if (id1 == 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++) - skge_xm_phy_write(hw, port, - A1hack[i].reg, A1hack[i].val); - } + /* 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; - /* - * Workaround BCOM Errata (#10523) for all BCom PHYs. - * Disable Power Management after reset. - */ - r = skge_xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL); - skge_xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r | PHY_B_AC_DIS_PM); - } + skge_write32(hw, B2_GP_IO, r); + skge_read32(hw, B2_GP_IO); + spin_unlock_bh(&hw->phy_lock); - /* Dummy read */ - skge_xm_read16(hw, port, XM_ISRC); + /* Enable GMII interfac */ + xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD); + + bcom_phy_init(skge, jumbo); + + /* 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); - r = skge_xm_read32(hw, port, XM_MODE); - skge_xm_write32(hw, port, XM_MODE, r|XM_MD_CSA); + /* 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 = skge_xm_read16(hw, port, XM_RX_CMD); - skge_xm_write16(hw, port, XM_RX_CMD, r | XM_RX_STRIP_FCS); + 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. */ - r = skge_xm_read16(hw, port, XM_TX_CMD); - skge_xm_write16(hw, port, XM_TX_CMD, r | XM_TX_AUTO_PAD); + xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD); + + /* + * Bump up the transmit threshold. This helps hold off transmit + * underruns when we're blasting traffic from both ports at once. + */ + xm_write16(hw, port, XM_TX_THR, 512); /* * Enable the reception of all error frames. This is is @@ -1135,19 +1275,22 @@ static void genesis_mac_init(struct skge_hw *hw, int port) * case the XMAC will start transfering frames out of the * RX FIFO as soon as the FIFO threshold is reached. */ - r = skge_xm_read32(hw, port, XM_MODE); - skge_xm_write32(hw, port, XM_MODE, - XM_MD_RX_CRCE|XM_MD_RX_LONG|XM_MD_RX_RUNT| - XM_MD_RX_ERR|XM_MD_RX_IRLE); + xm_write32(hw, port, XM_MODE, XM_DEF_MODE); - skge_xm_outaddr(hw, port, XM_SA, hw->dev[port]->dev_addr); - skge_xm_outaddr(hw, port, XM_EXM(0), hw->dev[port]->dev_addr); /* - * Bump up the transmit threshold. This helps hold off transmit - * underruns when we're blasting traffic from both ports at once. + * 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'. */ - skge_xm_write16(hw, port, XM_TX_THR, 512); + 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); @@ -1164,137 +1307,30 @@ static void genesis_mac_init(struct skge_hw *hw, int port) skge_write8(hw, B3_MA_RCINI_TX2, 0); /* Configure Rx MAC FIFO */ - skge_write8(hw, SKGEMAC_REG(port, RX_MFF_CTRL2), MFF_RST_CLR); - skge_write16(hw, SKGEMAC_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT); - skge_write8(hw, SKGEMAC_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD); + 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, SKGEMAC_ |