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-rw-r--r--drivers/net/e1000e/82571.c6
-rw-r--r--drivers/net/e1000e/defines.h2
-rw-r--r--drivers/net/e1000e/e1000.h29
-rw-r--r--drivers/net/e1000e/es2lan.c1
-rw-r--r--drivers/net/e1000e/ethtool.c23
-rw-r--r--drivers/net/e1000e/ich8lan.c2
-rw-r--r--drivers/net/e1000e/netdev.c149
-rw-r--r--drivers/net/e1000e/param.c2
8 files changed, 158 insertions, 56 deletions
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index d3d4a57e245..ca663f19d7d 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 93b3bedae8d..d3f7a9c3f97 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 f9a31c82f87..cee882dd67b 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 45aebb4a6fe..24f8ac9cf70 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 6355a1b779d..8984d165a39 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 57b5435599a..e3374d9a247 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 e561d15c3eb..ec8cf3f5142 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 34aeec13bb1..3d36911f77f 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
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-28 02:10:08 +0000