diff options
Diffstat (limited to 'drivers/net/e1000e')
-rw-r--r-- | drivers/net/e1000e/82571.c | 6 | ||||
-rw-r--r-- | drivers/net/e1000e/defines.h | 2 | ||||
-rw-r--r-- | drivers/net/e1000e/e1000.h | 29 | ||||
-rw-r--r-- | drivers/net/e1000e/es2lan.c | 1 | ||||
-rw-r--r-- | drivers/net/e1000e/ethtool.c | 23 | ||||
-rw-r--r-- | drivers/net/e1000e/ich8lan.c | 2 | ||||
-rw-r--r-- | drivers/net/e1000e/netdev.c | 149 | ||||
-rw-r--r-- | drivers/net/e1000e/param.c | 2 |
8 files changed, 158 insertions, 56 deletions
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c index d3d4a57e2450..ca663f19d7df 100644 --- a/drivers/net/e1000e/82571.c +++ b/drivers/net/e1000e/82571.c @@ -1801,7 +1801,8 @@ struct e1000_info e1000_82571_info = { | FLAG_RESET_OVERWRITES_LAA /* errata */ | FLAG_TARC_SPEED_MODE_BIT /* errata */ | FLAG_APME_CHECK_PORT_B, - .flags2 = FLAG2_DISABLE_ASPM_L1, /* errata 13 */ + .flags2 = FLAG2_DISABLE_ASPM_L1 /* errata 13 */ + | FLAG2_DMA_BURST, .pba = 38, .max_hw_frame_size = DEFAULT_JUMBO, .get_variants = e1000_get_variants_82571, @@ -1819,7 +1820,8 @@ struct e1000_info e1000_82572_info = { | FLAG_RX_CSUM_ENABLED | FLAG_HAS_CTRLEXT_ON_LOAD | FLAG_TARC_SPEED_MODE_BIT, /* errata */ - .flags2 = FLAG2_DISABLE_ASPM_L1, /* errata 13 */ + .flags2 = FLAG2_DISABLE_ASPM_L1 /* errata 13 */ + | FLAG2_DMA_BURST, .pba = 38, .max_hw_frame_size = DEFAULT_JUMBO, .get_variants = e1000_get_variants_82571, diff --git a/drivers/net/e1000e/defines.h b/drivers/net/e1000e/defines.h index 93b3bedae8d2..d3f7a9c3f973 100644 --- a/drivers/net/e1000e/defines.h +++ b/drivers/net/e1000e/defines.h @@ -446,7 +446,9 @@ /* Transmit Descriptor Control */ #define E1000_TXDCTL_PTHRESH 0x0000003F /* TXDCTL Prefetch Threshold */ +#define E1000_TXDCTL_HTHRESH 0x00003F00 /* TXDCTL Host Threshold */ #define E1000_TXDCTL_WTHRESH 0x003F0000 /* TXDCTL Writeback Threshold */ +#define E1000_TXDCTL_GRAN 0x01000000 /* TXDCTL Granularity */ #define E1000_TXDCTL_FULL_TX_DESC_WB 0x01010000 /* GRAN=1, WTHRESH=1 */ #define E1000_TXDCTL_MAX_TX_DESC_PREFETCH 0x0100001F /* GRAN=1, PTHRESH=31 */ /* Enable the counting of desc. still to be processed. */ diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h index f9a31c82f871..cee882dd67bf 100644 --- a/drivers/net/e1000e/e1000.h +++ b/drivers/net/e1000e/e1000.h @@ -153,6 +153,33 @@ struct e1000_info; /* Time to wait before putting the device into D3 if there's no link (in ms). */ #define LINK_TIMEOUT 100 +#define DEFAULT_RDTR 0 +#define DEFAULT_RADV 8 +#define BURST_RDTR 0x20 +#define BURST_RADV 0x20 + +/* + * in the case of WTHRESH, it appears at least the 82571/2 hardware + * writes back 4 descriptors when WTHRESH=5, and 3 descriptors when + * WTHRESH=4, and since we want 64 bytes at a time written back, set + * it to 5 + */ +#define E1000_TXDCTL_DMA_BURST_ENABLE \ + (E1000_TXDCTL_GRAN | /* set descriptor granularity */ \ + E1000_TXDCTL_COUNT_DESC | \ + (5 << 16) | /* wthresh must be +1 more than desired */\ + (1 << 8) | /* hthresh */ \ + 0x1f) /* pthresh */ + +#define E1000_RXDCTL_DMA_BURST_ENABLE \ + (0x01000000 | /* set descriptor granularity */ \ + (4 << 16) | /* set writeback threshold */ \ + (4 << 8) | /* set prefetch threshold */ \ + 0x20) /* set hthresh */ + +#define E1000_TIDV_FPD (1 << 31) +#define E1000_RDTR_FPD (1 << 31) + enum e1000_boards { board_82571, board_82572, @@ -425,6 +452,8 @@ struct e1000_info { #define FLAG2_DISABLE_ASPM_L1 (1 << 3) #define FLAG2_HAS_PHY_STATS (1 << 4) #define FLAG2_HAS_EEE (1 << 5) +#define FLAG2_DMA_BURST (1 << 6) +#define FLAG2_DISABLE_AIM (1 << 8) #define E1000_RX_DESC_PS(R, i) \ (&(((union e1000_rx_desc_packet_split *)((R).desc))[i])) diff --git a/drivers/net/e1000e/es2lan.c b/drivers/net/e1000e/es2lan.c index 45aebb4a6fe1..24f8ac9cf703 100644 --- a/drivers/net/e1000e/es2lan.c +++ b/drivers/net/e1000e/es2lan.c @@ -1494,6 +1494,7 @@ struct e1000_info e1000_es2_info = { | FLAG_APME_CHECK_PORT_B | FLAG_DISABLE_FC_PAUSE_TIME /* errata */ | FLAG_TIPG_MEDIUM_FOR_80003ESLAN, + .flags2 = FLAG2_DMA_BURST, .pba = 38, .max_hw_frame_size = DEFAULT_JUMBO, .get_variants = e1000_get_variants_80003es2lan, diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index 6355a1b779d3..8984d165a39b 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -368,7 +368,7 @@ out: static u32 e1000_get_rx_csum(struct net_device *netdev) { struct e1000_adapter *adapter = netdev_priv(netdev); - return (adapter->flags & FLAG_RX_CSUM_ENABLED); + return adapter->flags & FLAG_RX_CSUM_ENABLED; } static int e1000_set_rx_csum(struct net_device *netdev, u32 data) @@ -389,7 +389,7 @@ static int e1000_set_rx_csum(struct net_device *netdev, u32 data) static u32 e1000_get_tx_csum(struct net_device *netdev) { - return ((netdev->features & NETIF_F_HW_CSUM) != 0); + return (netdev->features & NETIF_F_HW_CSUM) != 0; } static int e1000_set_tx_csum(struct net_device *netdev, u32 data) @@ -1717,13 +1717,6 @@ static void e1000_diag_test(struct net_device *netdev, e_info("offline testing starting\n"); - /* - * Link test performed before hardware reset so autoneg doesn't - * interfere with test result - */ - if (e1000_link_test(adapter, &data[4])) - eth_test->flags |= ETH_TEST_FL_FAILED; - if (if_running) /* indicate we're in test mode */ dev_close(netdev); @@ -1747,15 +1740,19 @@ static void e1000_diag_test(struct net_device *netdev, if (e1000_loopback_test(adapter, &data[3])) eth_test->flags |= ETH_TEST_FL_FAILED; + /* force this routine to wait until autoneg complete/timeout */ + adapter->hw.phy.autoneg_wait_to_complete = 1; + e1000e_reset(adapter); + adapter->hw.phy.autoneg_wait_to_complete = 0; + + if (e1000_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + /* restore speed, duplex, autoneg settings */ adapter->hw.phy.autoneg_advertised = autoneg_advertised; adapter->hw.mac.forced_speed_duplex = forced_speed_duplex; adapter->hw.mac.autoneg = autoneg; - - /* force this routine to wait until autoneg complete/timeout */ - adapter->hw.phy.autoneg_wait_to_complete = 1; e1000e_reset(adapter); - adapter->hw.phy.autoneg_wait_to_complete = 0; clear_bit(__E1000_TESTING, &adapter->state); if (if_running) diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index 57b5435599ab..e3374d9a2472 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -3986,7 +3986,7 @@ struct e1000_info e1000_pch2_info = { | FLAG_APME_IN_WUC, .flags2 = FLAG2_HAS_PHY_STATS | FLAG2_HAS_EEE, - .pba = 18, + .pba = 26, .max_hw_frame_size = DEFAULT_JUMBO, .get_variants = e1000_get_variants_ich8lan, .mac_ops = &ich8_mac_ops, diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index e561d15c3eb1..ec8cf3f51423 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -475,7 +475,8 @@ static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, { u16 status = (u16)status_err; u8 errors = (u8)(status_err >> 24); - skb->ip_summed = CHECKSUM_NONE; + + skb_checksum_none_assert(skb); /* Ignore Checksum bit is set */ if (status & E1000_RXD_STAT_IXSM) @@ -1052,7 +1053,7 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter) adapter->total_tx_packets += total_tx_packets; netdev->stats.tx_bytes += total_tx_bytes; netdev->stats.tx_packets += total_tx_packets; - return (count < tx_ring->count); + return count < tx_ring->count; } /** @@ -2289,6 +2290,11 @@ static void e1000_set_itr(struct e1000_adapter *adapter) goto set_itr_now; } + if (adapter->flags2 & FLAG2_DISABLE_AIM) { + new_itr = 0; + goto set_itr_now; + } + adapter->tx_itr = e1000_update_itr(adapter, adapter->tx_itr, adapter->total_tx_packets, @@ -2337,7 +2343,10 @@ set_itr_now: if (adapter->msix_entries) adapter->rx_ring->set_itr = 1; else - ew32(ITR, 1000000000 / (new_itr * 256)); + if (new_itr) + ew32(ITR, 1000000000 / (new_itr * 256)); + else + ew32(ITR, 0); } } @@ -2536,7 +2545,7 @@ static void e1000_restore_vlan(struct e1000_adapter *adapter) if (!adapter->vlgrp) return; - for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) { + for (vid = 0; vid < VLAN_N_VID; vid++) { if (!vlan_group_get_device(adapter->vlgrp, vid)) continue; e1000_vlan_rx_add_vid(adapter->netdev, vid); @@ -2649,6 +2658,26 @@ static void e1000_configure_tx(struct e1000_adapter *adapter) /* Tx irq moderation */ ew32(TADV, adapter->tx_abs_int_delay); + if (adapter->flags2 & FLAG2_DMA_BURST) { + u32 txdctl = er32(TXDCTL(0)); + txdctl &= ~(E1000_TXDCTL_PTHRESH | E1000_TXDCTL_HTHRESH | + E1000_TXDCTL_WTHRESH); + /* + * set up some performance related parameters to encourage the + * hardware to use the bus more efficiently in bursts, depends + * on the tx_int_delay to be enabled, + * wthresh = 5 ==> burst write a cacheline (64 bytes) at a time + * hthresh = 1 ==> prefetch when one or more available + * pthresh = 0x1f ==> prefetch if internal cache 31 or less + * BEWARE: this seems to work but should be considered first if + * there are tx hangs or other tx related bugs + */ + txdctl |= E1000_TXDCTL_DMA_BURST_ENABLE; + ew32(TXDCTL(0), txdctl); + /* erratum work around: set txdctl the same for both queues */ + ew32(TXDCTL(1), txdctl); + } + /* Program the Transmit Control Register */ tctl = er32(TCTL); tctl &= ~E1000_TCTL_CT; @@ -2871,12 +2900,35 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) e1e_flush(); msleep(10); + if (adapter->flags2 & FLAG2_DMA_BURST) { + /* + * set the writeback threshold (only takes effect if the RDTR + * is set). set GRAN=1 and write back up to 0x4 worth, and + * enable prefetching of 0x20 rx descriptors + * granularity = 01 + * wthresh = 04, + * hthresh = 04, + * pthresh = 0x20 + */ + ew32(RXDCTL(0), E1000_RXDCTL_DMA_BURST_ENABLE); + ew32(RXDCTL(1), E1000_RXDCTL_DMA_BURST_ENABLE); + + /* + * override the delay timers for enabling bursting, only if + * the value was not set by the user via module options + */ + if (adapter->rx_int_delay == DEFAULT_RDTR) + adapter->rx_int_delay = BURST_RDTR; + if (adapter->rx_abs_int_delay == DEFAULT_RADV) + adapter->rx_abs_int_delay = BURST_RADV; + } + /* set the Receive Delay Timer Register */ ew32(RDTR, adapter->rx_int_delay); /* irq moderation */ ew32(RADV, adapter->rx_abs_int_delay); - if (adapter->itr_setting != 0) + if ((adapter->itr_setting != 0) && (adapter->itr != 0)) ew32(ITR, 1000000000 / (adapter->itr * 256)); ctrl_ext = er32(CTRL_EXT); @@ -2921,11 +2973,13 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) * packet size is equal or larger than the specified value (in 8 byte * units), e.g. using jumbo frames when setting to E1000_ERT_2048 */ - if (adapter->flags & FLAG_HAS_ERT) { + if ((adapter->flags & FLAG_HAS_ERT) || + (adapter->hw.mac.type == e1000_pch2lan)) { if (adapter->netdev->mtu > ETH_DATA_LEN) { u32 rxdctl = er32(RXDCTL(0)); ew32(RXDCTL(0), rxdctl | 0x3); - ew32(ERT, E1000_ERT_2048 | (1 << 13)); + if (adapter->flags & FLAG_HAS_ERT) + ew32(ERT, E1000_ERT_2048 | (1 << 13)); /* * With jumbo frames and early-receive enabled, * excessive C-state transition latencies result in @@ -3188,9 +3242,35 @@ void e1000e_reset(struct e1000_adapter *adapter) fc->low_water = 0x05048; fc->pause_time = 0x0650; fc->refresh_time = 0x0400; + if (adapter->netdev->mtu > ETH_DATA_LEN) { + pba = 14; + ew32(PBA, pba); + } break; } + /* + * Disable Adaptive Interrupt Moderation if 2 full packets cannot + * fit in receive buffer and early-receive not supported. + */ + if (adapter->itr_setting & 0x3) { + if (((adapter->max_frame_size * 2) > (pba << 10)) && + !(adapter->flags & FLAG_HAS_ERT)) { + if (!(adapter->flags2 & FLAG2_DISABLE_AIM)) { + dev_info(&adapter->pdev->dev, + "Interrupt Throttle Rate turned off\n"); + adapter->flags2 |= FLAG2_DISABLE_AIM; + ew32(ITR, 0); + } + } else if (adapter->flags2 & FLAG2_DISABLE_AIM) { + dev_info(&adapter->pdev->dev, + "Interrupt Throttle Rate turned on\n"); + adapter->flags2 &= ~FLAG2_DISABLE_AIM; + adapter->itr = 20000; + ew32(ITR, 1000000000 / (adapter->itr * 256)); + } + } + /* Allow time for pending master requests to run */ mac->ops.reset_hw(hw); @@ -3411,22 +3491,16 @@ static int e1000_test_msi_interrupt(struct e1000_adapter *adapter) if (adapter->flags & FLAG_MSI_TEST_FAILED) { adapter->int_mode = E1000E_INT_MODE_LEGACY; - err = -EIO; - e_info("MSI interrupt test failed!\n"); - } + e_info("MSI interrupt test failed, using legacy interrupt.\n"); + } else + e_dbg("MSI interrupt test succeeded!\n"); free_irq(adapter->pdev->irq, netdev); pci_disable_msi(adapter->pdev); - if (err == -EIO) - goto msi_test_failed; - - /* okay so the test worked, restore settings */ - e_dbg("MSI interrupt test succeeded!\n"); msi_test_failed: e1000e_set_interrupt_capability(adapter); - e1000_request_irq(adapter); - return err; + return e1000_request_irq(adapter); } /** @@ -3458,21 +3532,6 @@ static int e1000_test_msi(struct e1000_adapter *adapter) pci_write_config_word(adapter->pdev, PCI_COMMAND, pci_cmd); } - /* success ! */ - if (!err) - return 0; - - /* EIO means MSI test failed */ - if (err != -EIO) - return err; - - /* back to INTx mode */ - e_warn("MSI interrupt test failed, using legacy interrupt.\n"); - - e1000_free_irq(adapter); - - err = e1000_request_irq(adapter); - return err; } @@ -3530,7 +3589,8 @@ static int e1000_open(struct net_device *netdev) e1000_update_mng_vlan(adapter); /* DMA latency requirement to workaround early-receive/jumbo issue */ - if (adapter->flags & FLAG_HAS_ERT) + if ((adapter->flags & FLAG_HAS_ERT) || + (adapter->hw.mac.type == e1000_pch2lan)) pm_qos_add_request(&adapter->netdev->pm_qos_req, PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE); @@ -3639,7 +3699,8 @@ static int e1000_close(struct net_device *netdev) if (adapter->flags & FLAG_HAS_AMT) e1000_release_hw_control(adapter); - if (adapter->flags & FLAG_HAS_ERT) + if ((adapter->flags & FLAG_HAS_ERT) || + (adapter->hw.mac.type == e1000_pch2lan)) pm_qos_remove_request(&adapter->netdev->pm_qos_req); pm_runtime_put_sync(&pdev->dev); @@ -4255,6 +4316,16 @@ link_up: /* Force detection of hung controller every watchdog period */ adapter->detect_tx_hung = 1; + /* flush partial descriptors to memory before detecting tx hang */ + if (adapter->flags2 & FLAG2_DMA_BURST) { + ew32(TIDV, adapter->tx_int_delay | E1000_TIDV_FPD); + ew32(RDTR, adapter->rx_int_delay | E1000_RDTR_FPD); + /* + * no need to flush the writes because the timeout code does + * an er32 first thing + */ + } + /* * With 82571 controllers, LAA may be overwritten due to controller * reset from the other port. Set the appropriate LAA in RAR[0] @@ -4729,7 +4800,7 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb, if (e1000_maybe_stop_tx(netdev, count + 2)) return NETDEV_TX_BUSY; - if (adapter->vlgrp && vlan_tx_tag_present(skb)) { + if (vlan_tx_tag_present(skb)) { tx_flags |= E1000_TX_FLAGS_VLAN; tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT); } @@ -5712,8 +5783,10 @@ static int __devinit e1000_probe(struct pci_dev *pdev, netdev->vlan_features |= NETIF_F_HW_CSUM; netdev->vlan_features |= NETIF_F_SG; - if (pci_using_dac) + if (pci_using_dac) { netdev->features |= NETIF_F_HIGHDMA; + netdev->vlan_features |= NETIF_F_HIGHDMA; + } if (e1000e_enable_mng_pass_thru(&adapter->hw)) adapter->flags |= FLAG_MNG_PT_ENABLED; @@ -5754,11 +5827,11 @@ static int __devinit e1000_probe(struct pci_dev *pdev, } init_timer(&adapter->watchdog_timer); - adapter->watchdog_timer.function = &e1000_watchdog; + adapter->watchdog_timer.function = e1000_watchdog; adapter->watchdog_timer.data = (unsigned long) adapter; init_timer(&adapter->phy_info_timer); - adapter->phy_info_timer.function = &e1000_update_phy_info; + adapter->phy_info_timer.function = e1000_update_phy_info; adapter->phy_info_timer.data = (unsigned long) adapter; INIT_WORK(&adapter->reset_task, e1000_reset_task); diff --git a/drivers/net/e1000e/param.c b/drivers/net/e1000e/param.c index 34aeec13bb16..3d36911f77f3 100644 --- a/drivers/net/e1000e/param.c +++ b/drivers/net/e1000e/param.c @@ -91,7 +91,6 @@ E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay"); * Valid Range: 0-65535 */ E1000_PARAM(RxIntDelay, "Receive Interrupt Delay"); -#define DEFAULT_RDTR 0 #define MAX_RXDELAY 0xFFFF #define MIN_RXDELAY 0 @@ -101,7 +100,6 @@ E1000_PARAM(RxIntDelay, "Receive Interrupt Delay"); * Valid Range: 0-65535 */ E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay"); -#define DEFAULT_RADV 8 #define MAX_RXABSDELAY 0xFFFF #define MIN_RXABSDELAY 0 |