diff options
Diffstat (limited to 'drivers/net/sky2.c')
-rw-r--r-- | drivers/net/sky2.c | 665 |
1 files changed, 495 insertions, 170 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index fe01b96..a2f3215 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -39,6 +39,7 @@ #include <linux/workqueue.h> #include <linux/if_vlan.h> #include <linux/prefetch.h> +#include <linux/debugfs.h> #include <linux/mii.h> #include <asm/irq.h> @@ -50,7 +51,7 @@ #include "sky2.h" #define DRV_NAME "sky2" -#define DRV_VERSION "1.14" +#define DRV_VERSION "1.16" #define PFX DRV_NAME " " /* @@ -64,7 +65,6 @@ #define RX_MAX_PENDING (RX_LE_SIZE/6 - 2) #define RX_DEF_PENDING RX_MAX_PENDING #define RX_SKB_ALIGN 8 -#define RX_BUF_WRITE 16 #define TX_RING_SIZE 512 #define TX_DEF_PENDING (TX_RING_SIZE - 1) @@ -77,6 +77,9 @@ #define NAPI_WEIGHT 64 #define PHY_RETRIES 1000 +#define SKY2_EEPROM_MAGIC 0x9955aabb + + #define RING_NEXT(x,s) (((x)+1) & ((s)-1)) static const u32 default_msg = @@ -96,7 +99,7 @@ static int disable_msi = 0; module_param(disable_msi, int, 0); MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)"); -static int idle_timeout = 0; +static int idle_timeout = 100; module_param(idle_timeout, int, 0); MODULE_PARM_DESC(idle_timeout, "Watchdog timer for lost interrupts (ms)"); @@ -130,7 +133,7 @@ static const struct pci_device_id sky2_id_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) }, /* 88EC034 */ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4369) }, /* 88EC042 */ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436A) }, /* 88E8058 */ -// { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436B) }, /* 88E8071 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436B) }, /* 88E8071 */ { 0 } }; @@ -217,13 +220,24 @@ static void sky2_power_on(struct sky2_hw *hw) sky2_write8(hw, B2_Y2_CLK_GATE, 0); if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) { - u32 reg1; + u32 reg; - sky2_pci_write32(hw, PCI_DEV_REG3, 0); - reg1 = sky2_pci_read32(hw, PCI_DEV_REG4); - reg1 &= P_ASPM_CONTROL_MSK; - sky2_pci_write32(hw, PCI_DEV_REG4, reg1); - sky2_pci_write32(hw, PCI_DEV_REG5, 0); + reg = sky2_pci_read32(hw, PCI_DEV_REG4); + /* set all bits to 0 except bits 15..12 and 8 */ + reg &= P_ASPM_CONTROL_MSK; + sky2_pci_write32(hw, PCI_DEV_REG4, reg); + + reg = sky2_pci_read32(hw, PCI_DEV_REG5); + /* set all bits to 0 except bits 28 & 27 */ + reg &= P_CTL_TIM_VMAIN_AV_MSK; + sky2_pci_write32(hw, PCI_DEV_REG5, reg); + + sky2_pci_write32(hw, PCI_CFG_REG_1, 0); + + /* Enable workaround for dev 4.107 on Yukon-Ultra & Extreme */ + reg = sky2_read32(hw, B2_GP_IO); + reg |= GLB_GPIO_STAT_RACE_DIS; + sky2_write32(hw, B2_GP_IO, reg); } } @@ -650,6 +664,30 @@ static void sky2_wol_init(struct sky2_port *sky2) } +static void sky2_set_tx_stfwd(struct sky2_hw *hw, unsigned port) +{ + if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev != CHIP_REV_YU_EX_A0) { + sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), + TX_STFW_ENA | + (hw->dev[port]->mtu > ETH_DATA_LEN) ? TX_JUMBO_ENA : TX_JUMBO_DIS); + } else { + if (hw->dev[port]->mtu > ETH_DATA_LEN) { + /* set Tx GMAC FIFO Almost Empty Threshold */ + sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR), + (ECU_JUMBO_WM << 16) | ECU_AE_THR); + + sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), + TX_JUMBO_ENA | TX_STFW_DIS); + + /* Can't do offload because of lack of store/forward */ + hw->dev[port]->features &= ~(NETIF_F_TSO | NETIF_F_SG + | NETIF_F_ALL_CSUM); + } else + sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), + TX_JUMBO_DIS | TX_STFW_ENA); + } +} + static void sky2_mac_init(struct sky2_hw *hw, unsigned port) { struct sky2_port *sky2 = netdev_priv(hw->dev[port]); @@ -730,8 +768,11 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port) /* Configure Rx MAC FIFO */ sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR); - sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), - GMF_OPER_ON | GMF_RX_F_FL_ON); + reg = GMF_OPER_ON | GMF_RX_F_FL_ON; + if (hw->chip_id == CHIP_ID_YUKON_EX) + reg |= GMF_RX_OVER_ON; + + sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), reg); /* Flush Rx MAC FIFO on any flow control or error */ sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR); @@ -747,16 +788,7 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port) sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8); sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8); - /* set Tx GMAC FIFO Almost Empty Threshold */ - sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR), - (ECU_JUMBO_WM << 16) | ECU_AE_THR); - - if (hw->dev[port]->mtu > ETH_DATA_LEN) - sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), - TX_JUMBO_ENA | TX_STFW_DIS); - else - sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), - TX_JUMBO_DIS | TX_STFW_ENA); + sky2_set_tx_stfwd(hw, port); } } @@ -861,24 +893,18 @@ static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2) return le; } -/* Return high part of DMA address (could be 32 or 64 bit) */ -static inline u32 high32(dma_addr_t a) -{ - return sizeof(a) > sizeof(u32) ? (a >> 16) >> 16 : 0; -} - /* Build description to hardware for one receive segment */ static void sky2_rx_add(struct sky2_port *sky2, u8 op, dma_addr_t map, unsigned len) { struct sky2_rx_le *le; - u32 hi = high32(map); + u32 hi = upper_32_bits(map); if (sky2->rx_addr64 != hi) { le = sky2_next_rx(sky2); le->addr = cpu_to_le32(hi); le->opcode = OP_ADDR64 | HW_OWNER; - sky2->rx_addr64 = high32(map + len); + sky2->rx_addr64 = upper_32_bits(map + len); } le = sky2_next_rx(sky2); @@ -939,14 +965,16 @@ static void rx_set_checksum(struct sky2_port *sky2) { struct sky2_rx_le *le; - le = sky2_next_rx(sky2); - le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN); - le->ctrl = 0; - le->opcode = OP_TCPSTART | HW_OWNER; + if (sky2->hw->chip_id != CHIP_ID_YUKON_EX) { + le = sky2_next_rx(sky2); + le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN); + le->ctrl = 0; + le->opcode = OP_TCPSTART | HW_OWNER; - sky2_write32(sky2->hw, - Q_ADDR(rxqaddr[sky2->port], Q_CSR), - sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM); + sky2_write32(sky2->hw, + Q_ADDR(rxqaddr[sky2->port], Q_CSR), + sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM); + } } @@ -1106,6 +1134,11 @@ nomem: return NULL; } +static inline void sky2_rx_update(struct sky2_port *sky2, unsigned rxq) +{ + sky2_put_idx(sky2->hw, rxq, sky2->rx_put); +} + /* * Allocate and setup receiver buffer pool. * Normal case this ends up creating one list element for skb @@ -1134,15 +1167,14 @@ static int sky2_rx_start(struct sky2_port *sky2) if (hw->chip_id == CHIP_ID_YUKON_EC_U && (hw->chip_rev == CHIP_REV_YU_EC_U_A1 || hw->chip_rev == CHIP_REV_YU_EC_U_B0)) - sky2_write32(hw, Q_ADDR(rxq, Q_F), F_M_RX_RAM_DIS); + sky2_write32(hw, Q_ADDR(rxq, Q_TEST), F_M_RX_RAM_DIS); sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1); rx_set_checksum(sky2); /* Space needed for frame data + headers rounded up */ - size = ALIGN(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8) - + 8; + size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8); /* Stopping point for hardware truncation */ thresh = (size - 8) / sizeof(u32); @@ -1197,7 +1229,7 @@ static int sky2_rx_start(struct sky2_port *sky2) } /* Tell chip about available buffers */ - sky2_put_idx(hw, rxq, sky2->rx_put); + sky2_rx_update(sky2, rxq); return 0; nomem: sky2_rx_clean(sky2); @@ -1234,6 +1266,8 @@ static int sky2_up(struct net_device *dev) if (netif_msg_ifup(sky2)) printk(KERN_INFO PFX "%s: enabling interface\n", dev->name); + netif_carrier_off(dev); + /* must be power of 2 */ sky2->tx_le = pci_alloc_consistent(hw->pdev, TX_RING_SIZE * @@ -1285,6 +1319,10 @@ static int sky2_up(struct net_device *dev) sky2_qset(hw, txqaddr[port]); + /* This is copied from sk98lin 10.0.5.3; no one tells me about erratta's */ + if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev == CHIP_REV_YU_EX_B0) + sky2_write32(hw, Q_ADDR(txqaddr[port], Q_TEST), F_TX_CHK_AUTO_OFF); + /* Set almost empty threshold */ if (hw->chip_id == CHIP_ID_YUKON_EC_U && hw->chip_rev == CHIP_REV_YU_EC_U_A0) @@ -1380,27 +1418,30 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev) len = skb_headlen(skb); mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE); - addr64 = high32(mapping); + addr64 = upper_32_bits(mapping); /* Send high bits if changed or crosses boundary */ - if (addr64 != sky2->tx_addr64 || high32(mapping + len) != sky2->tx_addr64) { + if (addr64 != sky2->tx_addr64 || + upper_32_bits(mapping + len) != sky2->tx_addr64) { le = get_tx_le(sky2); le->addr = cpu_to_le32(addr64); le->opcode = OP_ADDR64 | HW_OWNER; - sky2->tx_addr64 = high32(mapping + len); + sky2->tx_addr64 = upper_32_bits(mapping + len); } /* Check for TCP Segmentation Offload */ mss = skb_shinfo(skb)->gso_size; if (mss != 0) { - mss += tcp_optlen(skb); /* TCP options */ - mss += ip_hdrlen(skb) + sizeof(struct tcphdr); - mss += ETH_HLEN; - - if (mss != sky2->tx_last_mss) { - le = get_tx_le(sky2); - le->addr = cpu_to_le32(mss); - le->opcode = OP_LRGLEN | HW_OWNER; + if (hw->chip_id != CHIP_ID_YUKON_EX) + mss += ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb); + + if (mss != sky2->tx_last_mss) { + le = get_tx_le(sky2); + le->addr = cpu_to_le32(mss); + if (hw->chip_id == CHIP_ID_YUKON_EX) + le->opcode = OP_MSS | HW_OWNER; + else + le->opcode = OP_LRGLEN | HW_OWNER; sky2->tx_last_mss = mss; } } @@ -1422,24 +1463,30 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev) /* Handle TCP checksum offload */ if (skb->ip_summed == CHECKSUM_PARTIAL) { - const unsigned offset = skb_transport_offset(skb); - u32 tcpsum; - - tcpsum = offset << 16; /* sum start */ - tcpsum |= offset + skb->csum_offset; /* sum write */ - - ctrl |= CALSUM | WR_SUM | INIT_SUM | LOCK_SUM; - if (ip_hdr(skb)->protocol == IPPROTO_UDP) - ctrl |= UDPTCP; - - if (tcpsum != sky2->tx_tcpsum) { - sky2->tx_tcpsum = tcpsum; - - le = get_tx_le(sky2); - le->addr = cpu_to_le32(tcpsum); - le->length = 0; /* initial checksum value */ - le->ctrl = 1; /* one packet */ - le->opcode = OP_TCPLISW | HW_OWNER; + /* On Yukon EX (some versions) encoding change. */ + if (hw->chip_id == CHIP_ID_YUKON_EX + && hw->chip_rev != CHIP_REV_YU_EX_B0) + ctrl |= CALSUM; /* auto checksum */ + else { + const unsigned offset = skb_transport_offset(skb); + u32 tcpsum; + + tcpsum = offset << 16; /* sum start */ + tcpsum |= offset + skb->csum_offset; /* sum write */ + + ctrl |= CALSUM | WR_SUM | INIT_SUM | LOCK_SUM; + if (ip_hdr(skb)->protocol == IPPROTO_UDP) + ctrl |= UDPTCP; + + if (tcpsum != sky2->tx_tcpsum) { + sky2->tx_tcpsum = tcpsum; + + le = get_tx_le(sky2); + le->addr = cpu_to_le32(tcpsum); + le->length = 0; /* initial checksum value */ + le->ctrl = 1; /* one packet */ + le->opcode = OP_TCPLISW | HW_OWNER; + } } } @@ -1459,7 +1506,7 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev) mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset, frag->size, PCI_DMA_TODEVICE); - addr64 = high32(mapping); + addr64 = upper_32_bits(mapping); if (addr64 != sky2->tx_addr64) { le = get_tx_le(sky2); le->addr = cpu_to_le32(addr64); @@ -1529,13 +1576,13 @@ static void sky2_tx_complete(struct sky2_port *sky2, u16 done) if (unlikely(netif_msg_tx_done(sky2))) printk(KERN_DEBUG "%s: tx done %u\n", dev->name, idx); + sky2->net_stats.tx_packets++; sky2->net_stats.tx_bytes += re->skb->len; dev_kfree_skb_any(re->skb); + sky2->tx_next = RING_NEXT(idx, TX_RING_SIZE); } - - le->opcode = 0; /* paranoia */ } sky2->tx_cons = idx; @@ -1573,7 +1620,6 @@ static int sky2_down(struct net_device *dev) /* Stop more packets from being queued */ netif_stop_queue(dev); - netif_carrier_off(dev); /* Disable port IRQ */ imask = sky2_read32(hw, B0_IMSK); @@ -1625,6 +1671,8 @@ static int sky2_down(struct net_device *dev) sky2_phy_power(hw, port, 0); + netif_carrier_off(dev); + /* turn off LED's */ sky2_write16(hw, B0_Y2LED, LED_STAT_OFF); @@ -1689,7 +1737,6 @@ static void sky2_link_up(struct sky2_port *sky2) gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK); netif_carrier_on(sky2->netdev); - netif_wake_queue(sky2->netdev); /* Turn on link LED */ sky2_write8(hw, SK_REG(port, LNK_LED_REG), @@ -1741,7 +1788,6 @@ static void sky2_link_down(struct sky2_port *sky2) gma_write16(hw, port, GM_GP_CTRL, reg); netif_carrier_off(sky2->netdev); - netif_stop_queue(sky2->netdev); /* Turn on link LED */ sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); @@ -1913,15 +1959,8 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu) synchronize_irq(hw->pdev->irq); - if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) { - if (new_mtu > ETH_DATA_LEN) { - sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), - TX_JUMBO_ENA | TX_STFW_DIS); - dev->features &= NETIF_F_TSO | NETIF_F_SG | NETIF_F_IP_CSUM; - } else - sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), - TX_JUMBO_DIS | TX_STFW_ENA); - } + if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) + sky2_set_tx_stfwd(hw, port); ctl = gma_read16(hw, port, GM_GP_CTRL); gma_write16(hw, port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA); @@ -2019,8 +2058,6 @@ static struct sk_buff *receive_new(struct sky2_port *sky2, struct sk_buff *skb, *nskb; unsigned hdr_space = sky2->rx_data_size; - pr_debug(PFX "receive new length=%d\n", length); - /* Don't be tricky about reusing pages (yet) */ nskb = sky2_rx_alloc(sky2); if (unlikely(!nskb)) @@ -2064,6 +2101,9 @@ static struct sk_buff *sky2_receive(struct net_device *dev, if (!(status & GMR_FS_RX_OK)) goto resubmit; + if (status >> 16 != length) + goto len_mismatch; + if (length < copybreak) skb = receive_copy(sky2, re, length); else @@ -2073,6 +2113,11 @@ resubmit: return skb; +len_mismatch: + /* Truncation of overlength packets + causes PHY length to not match MAC length */ + ++sky2->net_stats.rx_length_errors; + error: ++sky2->net_stats.rx_errors; if (status & GMR_FS_RX_FF_OV) { @@ -2109,15 +2154,16 @@ static inline void sky2_tx_done(struct net_device *dev, u16 last) /* Process status response ring */ static int sky2_status_intr(struct sky2_hw *hw, int to_do) { - struct sky2_port *sky2; int work_done = 0; - unsigned buf_write[2] = { 0, 0 }; + unsigned rx[2] = { 0, 0 }; u16 hwidx = sky2_read16(hw, STAT_PUT_IDX); rmb(); while (hw->st_idx != hwidx) { + struct sky2_port *sky2; struct sky2_status_le *le = hw->st_le + hw->st_idx; + unsigned port = le->css & CSS_LINK_BIT; struct net_device *dev; struct sk_buff *skb; u32 status; @@ -2125,19 +2171,28 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do) hw->st_idx = RING_NEXT(hw->st_idx, STATUS_RING_SIZE); - BUG_ON(le->link >= 2); - dev = hw->dev[le->link]; - + dev = hw->dev[port]; sky2 = netdev_priv(dev); length = le16_to_cpu(le->length); status = le32_to_cpu(le->status); switch (le->opcode & ~HW_OWNER) { case OP_RXSTAT: + ++rx[port]; skb = sky2_receive(dev, length, status); if (unlikely(!skb)) { sky2->net_stats.rx_dropped++; - goto force_update; + break; + } + + /* This chip reports checksum status differently */ + if (hw->chip_id == CHIP_ID_YUKON_EX) { + if (sky2->rx_csum && + (le->css & (CSS_ISIPV4 | CSS_ISIPV6)) && + (le->css & CSS_TCPUDPCSOK)) + skb->ip_summed = CHECKSUM_UNNECESSARY; + else + skb->ip_summed = CHECKSUM_NONE; } skb->protocol = eth_type_trans(skb, dev); @@ -2154,13 +2209,6 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do) #endif netif_receive_skb(skb); - /* Update receiver after 16 frames */ - if (++buf_write[le->link] == RX_BUF_WRITE) { -force_update: - sky2_put_idx(hw, rxqaddr[le->link], sky2->rx_put); - buf_write[le->link] = 0; - } - /* Stop after net poll weight */ if (++work_done >= to_do) goto exit_loop; @@ -2179,6 +2227,9 @@ force_update: if (!sky2->rx_csum) break; + if (hw->chip_id == CHIP_ID_YUKON_EX) + break; + /* Both checksum counters are programmed to start at * the same offset, so unless there is a problem they * should match. This failure is an early indication that @@ -2194,7 +2245,7 @@ force_update: dev->name, status); sky2->rx_csum = 0; sky2_write32(sky2->hw, - Q_ADDR(rxqaddr[le->link], Q_CSR), + Q_ADDR(rxqaddr[port], Q_CSR), BMU_DIS_RX_CHKSUM); } break; @@ -2213,24 +2264,18 @@ force_update: if (net_ratelimit()) printk(KERN_WARNING PFX "unknown status opcode 0x%x\n", le->opcode); - goto exit_loop; } } /* Fully processed status ring so clear irq */ sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ); - mmiowb(); exit_loop: - if (buf_write[0]) { - sky2 = netdev_priv(hw->dev[0]); - sky2_put_idx(hw, Q_R1, sky2->rx_put); - } + if (rx[0]) + sky2_rx_update(netdev_priv(hw->dev[0]), Q_R1); - if (buf_write[1]) { - sky2 = netdev_priv(hw->dev[1]); - sky2_put_idx(hw, Q_R2, sky2->rx_put); - } + if (rx[1]) + sky2_rx_update(netdev_priv(hw->dev[1]), Q_R2); return work_done; } @@ -2427,8 +2472,7 @@ static void sky2_err_intr(struct sky2_hw *hw, u32 status) static int sky2_poll(struct net_device *dev0, int *budget) { struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw; - int work_limit = min(dev0->quota, *budget); - int work_done = 0; + int work_done; u32 status = sky2_read32(hw, B0_Y2_SP_EISR); if (unlikely(status & Y2_IS_ERROR)) @@ -2440,18 +2484,25 @@ static int sky2_poll(struct net_device *dev0, int *budget) if (status & Y2_IS_IRQ_PHY2) sky2_phy_intr(hw, 1); - work_done = sky2_status_intr(hw, work_limit); - if (work_done < work_limit) { - netif_rx_complete(dev0); + work_done = sky2_status_intr(hw, min(dev0->quota, *budget)); + *budget -= work_done; + dev0->quota -= work_done; - /* end of interrupt, re-enables also acts as I/O synchronization */ - sky2_read32(hw, B0_Y2_SP_LISR); - return 0; - } else { - *budget -= work_done; - dev0->quota -= work_done; + /* More work? */ + if (hw->st_idx != sky2_read16(hw, STAT_PUT_IDX)) return 1; + + /* Bug/Errata workaround? + * Need to kick the TX irq moderation timer. + */ + if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_START) { + sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP); + sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); } + netif_rx_complete(dev0); + + sky2_read32(hw, B0_Y2_SP_LISR); + return 0; } static irqreturn_t sky2_intr(int irq, void *dev_id) @@ -2513,6 +2564,9 @@ static int __devinit sky2_init(struct sky2_hw *hw) { u8 t8; + /* Enable all clocks */ + sky2_pci_write32(hw, PCI_DEV_REG3, 0); + sky2_write8(hw, B0_CTST, CS_RST_CLR); hw->chip_id = sky2_read8(hw, B2_CHIP_ID); @@ -2522,14 +2576,6 @@ static int __devinit sky2_init(struct sky2_hw *hw) return -EOPNOTSUPP; } - if (hw->chip_id == CHIP_ID_YUKON_EX) - dev_warn(&hw->pdev->dev, "this driver not yet tested on this chip type\n" - "Please report success or failure to <netdev@vger.kernel.org>\n"); - - /* Make sure and enable all clocks */ - if (hw->chip_id == CHIP_ID_YUKON_EX || hw->chip_id == CHIP_ID_YUKON_EC_U) - sky2_pci_write32(hw, PCI_DEV_REG3, 0); - hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4; /* This rev is really old, and requires untested workarounds */ @@ -2589,6 +2635,11 @@ static void sky2_reset(struct sky2_hw *hw) for (i = 0; i < hw->ports; i++) { sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET); sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR); + + if (hw->chip_id == CHIP_ID_YUKON_EX) + sky2_write16(hw, SK_REG(i, GMAC_CTRL), + GMC_BYP_MACSECRX_ON | GMC_BYP_MACSECTX_ON + | GMC_BYP_RETR_ON); } sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); @@ -2675,8 +2726,6 @@ static void sky2_restart(struct work_struct *work) struct net_device *dev; int i, err; - dev_dbg(&hw->pdev->dev, "restarting\n"); - del_timer_sync(&hw->idle_timer); rtnl_lock(); @@ -2735,7 +2784,7 @@ static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) sky2->wol = wol->wolopts; - if (hw->chip_id == CHIP_ID_YUKON_EC_U) + if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) sky2_write32(hw, B0_CTST, sky2->wol ? Y2_HW_WOL_ON : Y2_HW_WOL_OFF); @@ -3330,7 +3379,7 @@ static int sky2_get_regs_len(struct net_device *dev) /* * Returns copy of control register region - * Note: access to the RAM address register set will cause timeouts. + * Note: ethtool_get_regs always provides full size (16k) buffer */ static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p) @@ -3338,15 +3387,19 @@ static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs, const struct sky2_port *sky2 = netdev_priv(dev); const void __iomem *io = sky2->hw->regs; - BUG_ON(regs->len < B3_RI_WTO_R1); regs->version = 1; memset(p, 0, regs->len); memcpy_fromio(p, io, B3_RAM_ADDR); - memcpy_fromio(p + B3_RI_WTO_R1, - io + B3_RI_WTO_R1, - regs->len - B3_RI_WTO_R1); + /* skip diagnostic ram region */ + memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1, 0x2000 - B3_RI_WTO_R1); + + /* copy GMAC registers */ + memcpy_fromio(p + BASE_GMAC_1, io + BASE_GMAC_1, 0x1000); + if (sky2->hw->ports > 1) + memcpy_fromio(p + BASE_GMAC_2, io + BASE_GMAC_2, 0x1000); + } /* In order to do Jumbo packets on these chips, need to turn off the @@ -3357,9 +3410,7 @@ static int no_tx_offload(struct net_device *dev) const struct sky2_port *sky2 = netdev_priv(dev); const struct sky2_hw *hw = sky2->hw; - return dev->mtu > ETH_DATA_LEN && - (hw->chip_id == CHIP_ID_YUKON_EX - || hw->chip_id == CHIP_ID_YUKON_EC_U); + return dev->mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_EC_U; } static int sky2_set_tx_csum(struct net_device *dev, u32 data) @@ -3379,39 +3430,315 @@ static int sky2_set_tso(struct net_device *dev, u32 data) return ethtool_op_set_tso(dev, data); } +static int sky2_get_eeprom_len(struct net_device *dev) +{ + struct sky2_port *sky2 = netdev_priv(dev); + u16 reg2; + + reg2 = sky2_pci_read32(sky2->hw, PCI_DEV_REG2); + return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8); +} + +static u32 sky2_vpd_read(struct sky2_hw *hw, int cap, u16 offset) +{ + sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset); + + while (!(sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F)) + cpu_relax(); + return sky2_pci_read32(hw, cap + PCI_VPD_DATA); +} + +static void sky2_vpd_write(struct sky2_hw *hw, int cap, u16 offset, u32 val) +{ + sky2_pci_write32(hw, cap + PCI_VPD_DATA, val); + sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F); + do { + cpu_relax(); + } while (sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F); +} + +static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, + u8 *data) +{ + struct sky2_port *sky2 = netdev_priv(dev); + int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD); + int length = eeprom->len; + u16 offset = eeprom->offset; + + if (!cap) + return -EINVAL; + + eeprom->magic = SKY2_EEPROM_MAGIC; + + while (length > 0) { + u32 val = sky2_vpd_read(sky2->hw, cap, offset); + int n = min_t(int, length, sizeof(val)); + + memcpy(data, &val, n); + length -= n; + data += n; + offset += n; + } + return 0; +} + +static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, + u8 *data) +{ + struct sky2_port *sky2 = netdev_priv(dev); + int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD); + int length = eeprom->len; + u16 offset = eeprom->offset; + + if (!cap) + return -EINVAL; + + if (eeprom->magic != SKY2_EEPROM_MAGIC) + return -EINVAL; + + while (length > 0) { + u32 val; + int n = min_t(int, length, sizeof(val)); + + if (n < sizeof(val)) + val = sky2_vpd_read(sky2->hw, cap, offset); + memcpy(&val, data, n); + + sky2_vpd_write(sky2->hw, cap, offset, val); + + length -= n; + data += n; + offset += n; + } + return 0; +} + + static const struct ethtool_ops sky2_ethtool_ops = { - .get_settings = sky2_get_settings, - .set_settings = sky2_set_settings, - .get_drvinfo = sky2_get_drvinfo, - .get_wol = sky2_get_wol, - .set_wol = sky2_set_wol, - .get_msglevel = sky2_get_msglevel, - .set_msglevel = sky2_set_msglevel, - .nway_reset = sky2_nway_reset, - .get_regs_len = sky2_get_regs_len, - .get_regs = sky2_get_regs, - .get_link = ethtool_op_get_link, - .get_sg = ethtool_op_get_sg, - .set_sg = ethtool_op_set_sg, - .get_tx_csum = ethtool_op_get_tx_csum, - .set_tx_csum = sky2_set_tx_csum, - .get_tso = ethtool_op_get_tso, - .set_tso = sky2_set_tso, - .get_rx_csum = sky2_get_rx_csum, - .set_rx_csum = sky2_set_rx_csum, - .get_strings = sky2_get_strings, - .get_coalesce = sky2_get_coalesce, - .set_coalesce = sky2_set_coalesce, - .get_ringparam = sky2_get_ringparam, - .set_ringparam = sky2_set_ringparam, + .get_settings = sky2_get_settings, + .set_settings = sky2_set_settings, + .get_drvinfo = sky2_get_drvinfo, + .get_wol = sky2_get_wol, + .set_wol = sky2_set_wol, + .get_msglevel = sky2_get_msglevel, + .set_msglevel = sky2_set_msglevel, + .nway_reset = sky2_nway_reset, + .get_regs_len = sky2_get_regs_len, + .get_regs = sky2_get_regs, + .get_link = ethtool_op_get_link, + .get_eeprom_len = sky2_get_eeprom_len, + .get_eeprom = sky2_get_eeprom, + .set_eeprom = sky2_set_eeprom, + .get_sg = ethtool_op_get_sg, + .set_sg = ethtool_op_set_sg, + .get_tx_csum = ethtool_op_get_tx_csum, + .set_tx_csum = sky2_set_tx_csum, + .get_tso = ethtool_op_get_tso, + .set_tso = sky2_set_tso, + .get_rx_csum = sky2_get_rx_csum, + .set_rx_csum = sky2_set_rx_csum, + .get_strings = sky2_get_strings, + .get_coalesce = sky2_get_coalesce, + .set_coalesce = sky2_set_coalesce, + .get_ringparam = sky2_get_ringparam, + .set_ringparam = sky2_set_ringparam, .get_pauseparam = sky2_get_pauseparam, .set_pauseparam = sky2_set_pauseparam, - .phys_id = sky2_phys_id, + .phys_id = sky2_phys_id, .get_stats_count = sky2_get_stats_count, .get_ethtool_stats = sky2_get_ethtool_stats, .get_perm_addr = ethtool_op_get_perm_addr, }; +#ifdef CONFIG_SKY2_DEBUG + +static struct dentry *sky2_debug; + +static int sky2_debug_show(struct seq_file *seq, void *v) +{ + struct net_device *dev = seq->private; + const struct sky2_port *sky2 = netdev_priv(dev); + const struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + unsigned idx, last; + int sop; + + if (!netif_running(dev)) + return -ENETDOWN; + + seq_printf(seq, "IRQ src=%x mask=%x control=%x\n", + sky2_read32(hw, B0_ISRC), + sky2_read32(hw, B0_IMSK), + sky2_read32(hw, B0_Y2_SP_ICR)); + + netif_poll_disable(hw->dev[0]); + last = sky2_read16(hw, STAT_PUT_IDX); + + if (hw->st_idx == last) + seq_puts(seq, "Status ring (empty)\n"); + else { + seq_puts(seq, "Status ring\n"); + for (idx = hw->st_idx; idx != last && idx < STATUS_RING_SIZE; + idx = RING_NEXT(idx, STATUS_RING_SIZE)) { + const struct sky2_status_le *le = hw->st_le + idx; + seq_printf(seq, "[%d] %#x %d %#x\n", + idx, le->opcode, le->length, le->status); + } + seq_puts(seq, "\n"); + } + + seq_printf(seq, "Tx ring pending=%u...%u report=%d done=%d\n", + sky2->tx_cons, sky2->tx_prod, + sky2_read16(hw, port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX), + sky2_read16(hw, Q_ADDR(txqaddr[port], Q_DONE))); + + /* Dump contents of tx ring */ + sop = 1; + for (idx = sky2->tx_next; idx != sky2->tx_prod && idx < TX_RING_SIZE; + idx = RING_NEXT(idx, TX_RING_SIZE)) { + const struct sky2_tx_le *le = sky2->tx_le + idx; + u32 a = le32_to_cpu(le->addr); + + if (sop) + seq_printf(seq, "%u:", idx); + sop = 0; + + switch(le->opcode & ~HW_OWNER) { + case OP_ADDR64: + seq_printf(seq, " %#x:", a); + break; + case OP_LRGLEN: + seq_printf(seq, " mtu=%d", a); + break; + case OP_VLAN: + seq_printf(seq, " vlan=%d", be16_to_cpu(le->length)); + break; + case OP_TCPLISW: + seq_printf(seq, " csum=%#x", a); + break; + case OP_LARGESEND: + seq_printf(seq, " tso=%#x(%d)", a, le16_to_cpu(le->length)); + break; + case OP_PACKET: + seq_printf(seq, " %#x(%d)", a, le16_to_cpu(le->length)); + break; + case OP_BUFFER: + seq_printf(seq, " frag=%#x(%d)", a, le16_to_cpu(le->length)); + break; + default: + seq_printf(seq, " op=%#x,%#x(%d)", le->opcode, + a, le16_to_cpu(le->length)); + } + + if (le->ctrl & EOP) { + seq_putc(seq, '\n'); + sop = 1; + } + } + + seq_printf(seq, "\nRx ring hw get=%d put=%d last=%d\n", + sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_GET_IDX)), + last = sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_PUT_IDX)), + sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_LAST_IDX))); + + netif_poll_enable(hw->dev[0]); + return 0; +} + +static int sky2_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, sky2_debug_show, inode->i_private); +} + +static const struct file_operations sky2_debug_fops = { + .owner = THIS_MODULE, + .open = sky2_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +/* + * Use network device events to create/remove/rename + * debugfs file entries + */ +static int sky2_device_event(struct notifier_block *unused, + unsigned long event, void *ptr) +{ + struct net_device *dev = ptr; + + if (dev->open == sky2_up) { + struct sky2_port *sky2 = netdev_priv(dev); + + switch(event) { + case NETDEV_CHANGENAME: + if (!netif_running(dev)) + break; + /* fallthrough */ + case NETDEV_DOWN: + case NETDEV_GOING_DOWN: + if (sky2->debugfs) { + printk(KERN_DEBUG PFX "%s: remove debugfs\n", + dev->name); + debugfs_remove(sky2->debugfs); + sky2->debugfs = NULL; + } + + if (event != NETDEV_CHANGENAME) + break; + /* fallthrough for changename */ + case NETDEV_UP: + if (sky2_debug) { + struct dentry *d; + d = debugfs_create_file(dev->name, S_IRUGO, + sky2_debug, dev, + &sky2_debug_fops); + if (d == NULL || IS_ERR(d)) + printk(KERN_INFO PFX + "%s: debugfs create failed\n", + dev->name); + else + sky2->debugfs = d; + } + break; + } + } + + return NOTIFY_DONE; +} + +static struct notifier_block sky2_notifier = { + .notifier_call = sky2_device_event, +}; + + +static __init void sky2_debug_init(void) +{ + struct dentry *ent; + + ent = debugfs_create_dir("sky2", NULL); + if (!ent || IS_ERR(ent)) + return; + + sky2_debug = ent; + register_netdevice_notifier(&sky2_notifier); +} + +static __exit void sky2_debug_cleanup(void) +{ + if (sky2_debug) { + unregister_netdevice_notifier(&sky2_notifier); + debugfs_remove(sky2_debug); + sky2_debug = NULL; + } +} + +#else +#define sky2_debug_init() +#define sky2_debug_cleanup() +#endif + + /* Initialize network device */ static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw, unsigned port, @@ -3486,10 +3813,6 @@ static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw, memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN); memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); - /* device is off until link detection */ - netif_carrier_off(dev); - netif_stop_queue(dev); - return dev; } @@ -3906,12 +4229,14 @@ static struct pci_driver sky2_driver = { static int __init sky2_init_module(void) { + sky2_debug_init(); return pci_register_driver(&sky2_driver); } static void __exit sky2_cleanup_module(void) { pci_unregister_driver(&sky2_driver); + sky2_debug_cleanup(); } module_init(sky2_init_module); |