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authorDavid S. Miller <davem@davemloft.net>2011-09-16 15:18:02 -0400
committerDavid S. Miller <davem@davemloft.net>2011-09-16 15:18:02 -0400
commite3b37a1bdac434c2ceeb2fa859a3bbc790530ce5 (patch)
treeb27da242213cc4ec784389a61ee9a0fde0ceb038 /drivers/net/ethernet
parent9c223f9bbad78aabfe9c4dfd75ca2660f78f20f9 (diff)
parent2c4af694fe1723501e19426d0d891bdae9194c71 (diff)
downloadblackbird-op-linux-e3b37a1bdac434c2ceeb2fa859a3bbc790530ce5.tar.gz
blackbird-op-linux-e3b37a1bdac434c2ceeb2fa859a3bbc790530ce5.zip
Merge git://github.com/Jkirsher/net-next
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe.h2
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c13
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c40
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c18
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_main.c775
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_type.h1
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c72
7 files changed, 341 insertions, 580 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 58482fc3024b..bfdd42b7f985 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -53,6 +53,7 @@
/* TX/RX descriptor defines */
#define IXGBE_DEFAULT_TXD 512
+#define IXGBE_DEFAULT_TX_WORK 256
#define IXGBE_MAX_TXD 4096
#define IXGBE_MIN_TXD 64
@@ -490,7 +491,6 @@ struct ixgbe_adapter {
int node;
u32 led_reg;
u32 interrupt_event;
- char lsc_int_name[IFNAMSIZ + 9];
/* SR-IOV */
DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
index 0d4e38264492..22504f2db25e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
@@ -820,8 +820,8 @@ mac_reset_top:
* Issue global reset to the MAC. This needs to be a SW reset.
* If link reset is used, it might reset the MAC when mng is using it
*/
- ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
- IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
+ ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
+ IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
IXGBE_WRITE_FLUSH(hw);
/* Poll for reset bit to self-clear indicating reset is complete */
@@ -836,21 +836,18 @@ mac_reset_top:
hw_dbg(hw, "Reset polling failed to complete.\n");
}
+ msleep(50);
+
/*
* Double resets are required for recovery from certain error
* conditions. Between resets, it is necessary to stall to allow time
- * for any pending HW events to complete. We use 1usec since that is
- * what is needed for ixgbe_disable_pcie_master(). The second reset
- * then clears out any effects of those events.
+ * for any pending HW events to complete.
*/
if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
- udelay(1);
goto mac_reset_top;
}
- msleep(50);
-
gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
index f193fc2f28fb..a5ff4358357c 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
@@ -904,11 +904,10 @@ static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
**/
static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
{
- s32 status = 0;
- u32 ctrl;
- u32 i;
- u32 autoc;
- u32 autoc2;
+ ixgbe_link_speed link_speed;
+ s32 status;
+ u32 ctrl, i, autoc, autoc2;
+ bool link_up = false;
/* Call adapter stop to disable tx/rx and clear interrupts */
hw->mac.ops.stop_adapter(hw);
@@ -942,40 +941,47 @@ static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
mac_reset_top:
/*
- * Issue global reset to the MAC. This needs to be a SW reset.
- * If link reset is used, it might reset the MAC when mng is using it
+ * Issue global reset to the MAC. Needs to be SW reset if link is up.
+ * If link reset is used when link is up, it might reset the PHY when
+ * mng is using it. If link is down or the flag to force full link
+ * reset is set, then perform link reset.
*/
- ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
- IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
+ ctrl = IXGBE_CTRL_LNK_RST;
+ if (!hw->force_full_reset) {
+ hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
+ if (link_up)
+ ctrl = IXGBE_CTRL_RST;
+ }
+
+ ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
+ IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
IXGBE_WRITE_FLUSH(hw);
/* Poll for reset bit to self-clear indicating reset is complete */
for (i = 0; i < 10; i++) {
udelay(1);
ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
- if (!(ctrl & IXGBE_CTRL_RST))
+ if (!(ctrl & IXGBE_CTRL_RST_MASK))
break;
}
- if (ctrl & IXGBE_CTRL_RST) {
+
+ if (ctrl & IXGBE_CTRL_RST_MASK) {
status = IXGBE_ERR_RESET_FAILED;
hw_dbg(hw, "Reset polling failed to complete.\n");
}
+ msleep(50);
+
/*
* Double resets are required for recovery from certain error
* conditions. Between resets, it is necessary to stall to allow time
- * for any pending HW events to complete. We use 1usec since that is
- * what is needed for ixgbe_disable_pcie_master(). The second reset
- * then clears out any effects of those events.
+ * for any pending HW events to complete.
*/
if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
- udelay(1);
goto mac_reset_top;
}
- msleep(50);
-
/*
* Store the original AUTOC/AUTOC2 values if they have not been
* stored off yet. Otherwise restore the stored original
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index 9c12b35232af..11e1d5cd40b9 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -1570,26 +1570,26 @@ static int ixgbe_setup_loopback_test(struct ixgbe_adapter *adapter)
/* X540 needs to set the MACC.FLU bit to force link up */
if (adapter->hw.mac.type == ixgbe_mac_X540) {
- reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_MACC);
+ reg_data = IXGBE_READ_REG(hw, IXGBE_MACC);
reg_data |= IXGBE_MACC_FLU;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_MACC, reg_data);
+ IXGBE_WRITE_REG(hw, IXGBE_MACC, reg_data);
}
/* right now we only support MAC loopback in the driver */
- reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_HLREG0);
+ reg_data = IXGBE_READ_REG(hw, IXGBE_HLREG0);
/* Setup MAC loopback */
reg_data |= IXGBE_HLREG0_LPBK;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_HLREG0, reg_data);
+ IXGBE_WRITE_REG(hw, IXGBE_HLREG0, reg_data);
- reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_FCTRL);
+ reg_data = IXGBE_READ_REG(hw, IXGBE_FCTRL);
reg_data |= IXGBE_FCTRL_BAM | IXGBE_FCTRL_SBP | IXGBE_FCTRL_MPE;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCTRL, reg_data);
+ IXGBE_WRITE_REG(hw, IXGBE_FCTRL, reg_data);
- reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_AUTOC);
+ reg_data = IXGBE_READ_REG(hw, IXGBE_AUTOC);
reg_data &= ~IXGBE_AUTOC_LMS_MASK;
reg_data |= IXGBE_AUTOC_LMS_10G_LINK_NO_AN | IXGBE_AUTOC_FLU;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_AUTOC, reg_data);
- IXGBE_WRITE_FLUSH(&adapter->hw);
+ IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_data);
+ IXGBE_WRITE_FLUSH(hw);
usleep_range(10000, 20000);
/* Disable Atlas Tx lanes; re-enabled in reset path */
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index d20e8040d855..bb069bc3d1a2 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -79,59 +79,32 @@ static const struct ixgbe_info *ixgbe_info_tbl[] = {
* Class, Class Mask, private data (not used) }
*/
static DEFINE_PCI_DEVICE_TABLE(ixgbe_pci_tbl) = {
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_BACKPLANE_FCOE),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_FCOE),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T),
- board_X540 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF2),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_LS),
- board_82599 },
-
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_BACKPLANE_FCOE), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_FCOE), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T), board_X540 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF2), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_LS), board_82599 },
/* required last entry */
{0, }
};
@@ -804,7 +777,7 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
struct ixgbe_tx_buffer *tx_buffer;
union ixgbe_adv_tx_desc *tx_desc;
unsigned int total_bytes = 0, total_packets = 0;
- u16 budget = q_vector->tx.work_limit;
+ unsigned int budget = q_vector->tx.work_limit;
u16 i = tx_ring->next_to_clean;
tx_buffer = &tx_ring->tx_buffer_info[i];
@@ -891,7 +864,7 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
ixgbe_tx_timeout_reset(adapter);
/* the adapter is about to reset, no point in enabling stuff */
- return budget;
+ return true;
}
#define TX_WAKE_THRESHOLD (DESC_NEEDED * 2)
@@ -908,7 +881,7 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
}
}
- return budget;
+ return !!budget;
}
#ifdef CONFIG_IXGBE_DCA
@@ -924,12 +897,12 @@ static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter,
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK;
- rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu);
+ rxctrl |= dca3_get_tag(rx_ring->dev, cpu);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK_82599;
- rxctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) <<
+ rxctrl |= (dca3_get_tag(rx_ring->dev, cpu) <<
IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599);
break;
default:
@@ -953,7 +926,7 @@ static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter,
case ixgbe_mac_82598EB:
txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(reg_idx));
txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK;
- txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu);
+ txctrl |= dca3_get_tag(tx_ring->dev, cpu);
txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN;
IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(reg_idx), txctrl);
break;
@@ -961,7 +934,7 @@ static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter,
case ixgbe_mac_X540:
txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(reg_idx));
txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK_82599;
- txctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) <<
+ txctrl |= (dca3_get_tag(tx_ring->dev, cpu) <<
IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599);
txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN;
IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(reg_idx), txctrl);
@@ -1297,9 +1270,9 @@ static inline bool ixgbe_get_rsc_state(union ixgbe_adv_rx_desc *rx_desc)
IXGBE_RXDADV_RSCCNT_MASK);
}
-static void ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
+static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
struct ixgbe_ring *rx_ring,
- int *work_done, int work_to_do)
+ int budget)
{
struct ixgbe_adapter *adapter = q_vector->adapter;
union ixgbe_adv_rx_desc *rx_desc, *next_rxd;
@@ -1479,11 +1452,11 @@ static void ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
#endif /* IXGBE_FCOE */
ixgbe_receive_skb(q_vector, skb, staterr, rx_ring, rx_desc);
+ budget--;
next_desc:
rx_desc->wb.upper.status_error = 0;
- (*work_done)++;
- if (*work_done >= work_to_do)
+ if (!budget)
break;
/* return some buffers to hardware, one at a time is too slow */
@@ -1524,9 +1497,10 @@ next_desc:
u64_stats_update_end(&rx_ring->syncp);
q_vector->rx.total_packets += total_rx_packets;
q_vector->rx.total_bytes += total_rx_bytes;
+
+ return !!budget;
}
-static int ixgbe_clean_rxonly(struct napi_struct *, int);
/**
* ixgbe_configure_msix - Configure MSI-X hardware
* @adapter: board private structure
@@ -1542,6 +1516,12 @@ static void ixgbe_configure_msix(struct ixgbe_adapter *adapter)
q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
+ /* Populate MSIX to EITR Select */
+ if (adapter->num_vfs > 32) {
+ u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1;
+ IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel);
+ }
+
/*
* Populate the IVAR table and set the ITR values to the
* corresponding register.
@@ -1564,20 +1544,6 @@ static void ixgbe_configure_msix(struct ixgbe_adapter *adapter)
q_vector->eitr = adapter->rx_eitr_param;
ixgbe_write_eitr(q_vector);
- /* If ATR is enabled, set interrupt affinity */
- if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) {
- /*
- * Allocate the affinity_hint cpumask, assign the mask
- * for this vector, and set our affinity_hint for
- * this irq.
- */
- if (!alloc_cpumask_var(&q_vector->affinity_mask,
- GFP_KERNEL))
- return;
- cpumask_set_cpu(v_idx, q_vector->affinity_mask);
- irq_set_affinity_hint(adapter->msix_entries[v_idx].vector,
- q_vector->affinity_mask);
- }
}
switch (adapter->hw.mac.type) {
@@ -1862,72 +1828,6 @@ static void ixgbe_check_lsc(struct ixgbe_adapter *adapter)
}
}
-static irqreturn_t ixgbe_msix_lsc(int irq, void *data)
-{
- struct ixgbe_adapter *adapter = data;
- struct ixgbe_hw *hw = &adapter->hw;
- u32 eicr;
-
- /*
- * Workaround for Silicon errata. Use clear-by-write instead
- * of clear-by-read. Reading with EICS will return the
- * interrupt causes without clearing, which later be done
- * with the write to EICR.
- */
- eicr = IXGBE_READ_REG(hw, IXGBE_EICS);
- IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr);
-
- if (eicr & IXGBE_EICR_LSC)
- ixgbe_check_lsc(adapter);
-
- if (eicr & IXGBE_EICR_MAILBOX)
- ixgbe_msg_task(adapter);
-
- switch (hw->mac.type) {
- case ixgbe_mac_82599EB:
- case ixgbe_mac_X540:
- /* Handle Flow Director Full threshold interrupt */
- if (eicr & IXGBE_EICR_FLOW_DIR) {
- int reinit_count = 0;
- int i;
- for (i = 0; i < adapter->num_tx_queues; i++) {
- struct ixgbe_ring *ring = adapter->tx_ring[i];
- if (test_and_clear_bit(__IXGBE_TX_FDIR_INIT_DONE,
- &ring->state))
- reinit_count++;
- }
- if (reinit_count) {
- /* no more flow director interrupts until after init */
- IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_FLOW_DIR);
- eicr &= ~IXGBE_EICR_FLOW_DIR;
- adapter->flags2 |= IXGBE_FLAG2_FDIR_REQUIRES_REINIT;
- ixgbe_service_event_schedule(adapter);
- }
- }
- ixgbe_check_sfp_event(adapter, eicr);
- if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) &&
- ((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC))) {
- if (!test_bit(__IXGBE_DOWN, &adapter->state)) {
- adapter->interrupt_event = eicr;
- adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_EVENT;
- ixgbe_service_event_schedule(adapter);
- }
- }
- break;
- default:
- break;
- }
-
- ixgbe_check_fan_failure(adapter, eicr);
-
- /* re-enable the original interrupt state, no lsc, no queues */
- if (!test_bit(__IXGBE_DOWN, &adapter->state))
- IXGBE_WRITE_REG(hw, IXGBE_EIMS, eicr &
- ~(IXGBE_EIMS_LSC | IXGBE_EIMS_RTX_QUEUE));
-
- return IRQ_HANDLED;
-}
-
static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter,
u64 qmask)
{
@@ -1980,165 +1880,122 @@ static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter,
/* skip the flush */
}
-static irqreturn_t ixgbe_msix_clean_tx(int irq, void *data)
-{
- struct ixgbe_q_vector *q_vector = data;
-
- if (!q_vector->tx.count)
- return IRQ_HANDLED;
-
- /* EIAM disabled interrupts (on this vector) for us */
- napi_schedule(&q_vector->napi);
-
- return IRQ_HANDLED;
-}
-
-/**
- * ixgbe_msix_clean_rx - single unshared vector rx clean (all queues)
- * @irq: unused
- * @data: pointer to our q_vector struct for this interrupt vector
- **/
-static irqreturn_t ixgbe_msix_clean_rx(int irq, void *data)
-{
- struct ixgbe_q_vector *q_vector = data;
-
- if (!q_vector->rx.count)
- return IRQ_HANDLED;
-
- /* EIAM disabled interrupts (on this vector) for us */
- napi_schedule(&q_vector->napi);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t ixgbe_msix_clean_many(int irq, void *data)
-{
- struct ixgbe_q_vector *q_vector = data;
-
- if (!q_vector->tx.count && !q_vector->rx.count)
- return IRQ_HANDLED;
-
- /* EIAM disabled interrupts (on this vector) for us */
- napi_schedule(&q_vector->napi);
-
- return IRQ_HANDLED;
-}
-
/**
- * ixgbe_clean_rxonly - msix (aka one shot) rx clean routine
- * @napi: napi struct with our devices info in it
- * @budget: amount of work driver is allowed to do this pass, in packets
- *
- * This function is optimized for cleaning one queue only on a single
- * q_vector!!!
+ * ixgbe_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
**/
-static int ixgbe_clean_rxonly(struct napi_struct *napi, int budget)
+static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues,
+ bool flush)
{
- struct ixgbe_q_vector *q_vector =
- container_of(napi, struct ixgbe_q_vector, napi);
- struct ixgbe_adapter *adapter = q_vector->adapter;
- int work_done = 0;
-
-#ifdef CONFIG_IXGBE_DCA
- if (adapter->flags & IXGBE_FLAG_DCA_ENABLED)
- ixgbe_update_dca(q_vector);
-#endif
+ u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE);
- ixgbe_clean_rx_irq(q_vector, q_vector->rx.ring, &work_done, budget);
+ /* don't reenable LSC while waiting for link */
+ if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)
+ mask &= ~IXGBE_EIMS_LSC;
- /* If all Rx work done, exit the polling mode */
- if (work_done < budget) {
- napi_complete(napi);
- if (adapter->rx_itr_setting & 1)
- ixgbe_set_itr(q_vector);
- if (!test_bit(__IXGBE_DOWN, &adapter->state))
- ixgbe_irq_enable_queues(adapter,
- ((u64)1 << q_vector->v_idx));
+ if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)
+ mask |= IXGBE_EIMS_GPI_SDP0;
+ if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE)
+ mask |= IXGBE_EIMS_GPI_SDP1;
+ switch (adapter->hw.mac.type) {
+ case ixgbe_mac_82599EB:
+ case ixgbe_mac_X540:
+ mask |= IXGBE_EIMS_ECC;
+ mask |= IXGBE_EIMS_GPI_SDP1;
+ mask |= IXGBE_EIMS_GPI_SDP2;
+ mask |= IXGBE_EIMS_MAILBOX;
+ break;
+ default:
+ break;
}
+ if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) &&
+ !(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT))
+ mask |= IXGBE_EIMS_FLOW_DIR;
- return work_done;
+ IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
+ if (queues)
+ ixgbe_irq_enable_queues(adapter, ~0);
+ if (flush)
+ IXGBE_WRITE_FLUSH(&adapter->hw);
}
-/**
- * ixgbe_clean_rxtx_many - msix (aka one shot) rx clean routine
- * @napi: napi struct with our devices info in it
- * @budget: amount of work driver is allowed to do this pass, in packets
- *
- * This function will clean more than one rx queue associated with a
- * q_vector.
- **/
-static int ixgbe_clean_rxtx_many(struct napi_struct *napi, int budget)
+static irqreturn_t ixgbe_msix_other(int irq, void *data)
{
- struct ixgbe_q_vector *q_vector =
- container_of(napi, struct ixgbe_q_vector, napi);
- struct ixgbe_adapter *adapter = q_vector->adapter;
- struct ixgbe_ring *ring;
- int work_done = 0;
- bool clean_complete = true;
+ struct ixgbe_adapter *adapter = data;
+ struct ixgbe_hw *hw = &adapter->hw;
+ u32 eicr;
-#ifdef CONFIG_IXGBE_DCA
- if (adapter->flags & IXGBE_FLAG_DCA_ENABLED)
- ixgbe_update_dca(q_vector);
-#endif
+ /*
+ * Workaround for Silicon errata. Use clear-by-write instead
+ * of clear-by-read. Reading with EICS will return the
+ * interrupt causes without clearing, which later be done
+ * with the write to EICR.
+ */
+ eicr = IXGBE_READ_REG(hw, IXGBE_EICS);
+ IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr);
- for (ring = q_vector->tx.ring; ring != NULL; ring = ring->next)
- clean_complete &= ixgbe_clean_tx_irq(q_vector, ring);
+ if (eicr & IXGBE_EICR_LSC)
+ ixgbe_check_lsc(adapter);
- /* attempt to distribute budget to each queue fairly, but don't allow
- * the budget to go below 1 because we'll exit polling */
- budget /= (q_vector->rx.count ?: 1);
- budget = max(budget, 1);
+ if (eicr & IXGBE_EICR_MAILBOX)
+ ixgbe_msg_task(adapter);
- for (ring = q_vector->rx.ring; ring != NULL; ring = ring->next)
- ixgbe_clean_rx_irq(q_vector, ring, &work_done, budget);
+ switch (hw->mac.type) {
+ case ixgbe_mac_82599EB:
+ case ixgbe_mac_X540:
+ if (eicr & IXGBE_EICR_ECC)
+ e_info(link, "Received unrecoverable ECC Err, please "
+ "reboot\n");
+ /* Handle Flow Director Full threshold interrupt */
+ if (eicr & IXGBE_EICR_FLOW_DIR) {
+ int reinit_count = 0;
+ int i;
+ for (i = 0; i < adapter->num_tx_queues; i++) {
+ struct ixgbe_ring *ring = adapter->tx_ring[i];
+ if (test_and_clear_bit(__IXGBE_TX_FDIR_INIT_DONE,
+ &ring->state))
+ reinit_count++;
+ }
+ if (reinit_count) {
+ /* no more flow director interrupts until after init */
+ IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_FLOW_DIR);
+ adapter->flags2 |= IXGBE_FLAG2_FDIR_REQUIRES_REINIT;
+ ixgbe_service_event_schedule(adapter);
+ }
+ }
+ ixgbe_check_sfp_event(adapter, eicr);
+ if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) &&
+ ((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC))) {
+ if (!test_bit(__IXGBE_DOWN, &adapter->state)) {
+ adapter->interrupt_event = eicr;
+ adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_EVENT;
+ ixgbe_service_event_schedule(adapter);
+ }
+ }
+ break;
+ default:
+ break;
+ }
- if (!clean_complete)
- work_done = budget;
+ ixgbe_check_fan_failure(adapter, eicr);
- /* If all Rx work done, exit the polling mode */
- if (work_done < budget) {
- napi_complete(napi);
- if (adapter->rx_itr_setting & 1)
- ixgbe_set_itr(q_vector);
- if (!test_bit(__IXGBE_DOWN, &adapter->state))
- ixgbe_irq_enable_queues(adapter,
- ((u64)1 << q_vector->v_idx));
- return 0;
- }
+ /* re-enable the original interrupt state, no lsc, no queues */
+ if (!test_bit(__IXGBE_DOWN, &adapter->state))
+ ixgbe_irq_enable(adapter, false, false);
- return work_done;
+ return IRQ_HANDLED;
}
-/**
- * ixgbe_clean_txonly - msix (aka one shot) tx clean routine
- * @napi: napi struct with our devices info in it
- * @budget: amount of work driver is allowed to do this pass, in packets
- *
- * This function is optimized for cleaning one queue only on a single
- * q_vector!!!
- **/
-static int ixgbe_clean_txonly(struct napi_struct *napi, int budget)
+static irqreturn_t ixgbe_msix_clean_rings(int irq, void *data)
{
- struct ixgbe_q_vector *q_vector =
- container_of(napi, struct ixgbe_q_vector, napi);
- struct ixgbe_adapter *adapter = q_vector->adapter;
-
-#ifdef CONFIG_IXGBE_DCA
- if (adapter->flags & IXGBE_FLAG_DCA_ENABLED)
- ixgbe_update_dca(q_vector);
-#endif
+ struct ixgbe_q_vector *q_vector = data;
- if (!ixgbe_clean_tx_irq(q_vector, q_vector->tx.ring))
- return budget;
+ /* EIAM disabled interrupts (on this vector) for us */
- /* If all Tx work done, exit the polling mode */
- napi_complete(napi);
- if (adapter->tx_itr_setting & 1)
- ixgbe_set_itr(q_vector);
- if (!test_bit(__IXGBE_DOWN, &adapter->state))
- ixgbe_irq_enable_queues(adapter, ((u64)1 << q_vector->v_idx));
+ if (q_vector->rx.ring || q_vector->tx.ring)
+ napi_schedule(&q_vector->napi);
- return 0;
+ return IRQ_HANDLED;
}
static inline void map_vector_to_rxq(struct ixgbe_adapter *a, int v_idx,
@@ -2176,59 +2033,41 @@ static inline void map_vector_to_txq(struct ixgbe_adapter *a, int v_idx,
* group the rings as "efficiently" as possible. You would add new
* mapping configurations in here.
**/
-static int ixgbe_map_rings_to_vectors(struct ixgbe_adapter *adapter)
+static void ixgbe_map_rings_to_vectors(struct ixgbe_adapter *adapter)
{
- int q_vectors;
+ int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
+ int rxr_remaining = adapter->num_rx_queues, rxr_idx = 0;
+ int txr_remaining = adapter->num_tx_queues, txr_idx = 0;
int v_start = 0;
- int rxr_idx = 0, txr_idx = 0;
- int rxr_remaining = adapter->num_rx_queues;
- int txr_remaining = adapter->num_tx_queues;
- int i, j;
- int rqpv, tqpv;
- int err = 0;
- /* No mapping required if MSI-X is disabled. */
+ /* only one q_vector if MSI-X is disabled. */
if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED))
- goto out;
-
- q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
+ q_vectors = 1;
/*
- * The ideal configuration...
- * We have enough vectors to map one per queue.
+ * If we don't have enough vectors for a 1-to-1 mapping, we'll have to
+ * group them so there are multiple queues per vector.
+ *
+ * Re-adjusting *qpv takes care of the remainder.
*/
- if (q_vectors == adapter->num_rx_queues + adapter->num_tx_queues) {
- for (; rxr_idx < rxr_remaining; v_start++, rxr_idx++)
+ for (; v_start < q_vectors && rxr_remaining; v_start++) {
+ int rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - v_start);
+ for (; rqpv; rqpv--, rxr_idx++, rxr_remaining--)
map_vector_to_rxq(adapter, v_start, rxr_idx);
-
- for (; txr_idx < txr_remaining; v_start++, txr_idx++)
- map_vector_to_txq(adapter, v_start, txr_idx);
-
- goto out;
}
/*
- * If we don't have enough vectors for a 1-to-1
- * mapping, we'll have to group them so there are
- * multiple queues per vector.
+ * If there are not enough q_vectors for each ring to have it's own
+ * vector then we must pair up Rx/Tx on a each vector
*/
- /* Re-adjusting *qpv takes care of the remainder. */
- for (i = v_start; i < q_vectors; i++) {
- rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - i);
- for (j = 0; j < rqpv; j++) {
- map_vector_to_rxq(adapter, i, rxr_idx);
- rxr_idx++;
- rxr_remaining--;
- }
- tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - i);
- for (j = 0; j < tqpv; j++) {
- map_vector_to_txq(adapter, i, txr_idx);
- txr_idx++;
- txr_remaining--;
- }
+ if ((v_start + txr_remaining) > q_vectors)
+ v_start = 0;
+
+ for (; v_start < q_vectors && txr_remaining; v_start++) {
+ int tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - v_start);
+ for (; tqpv; tqpv--, txr_idx++, txr_remaining--)
+ map_vector_to_txq(adapter, v_start, txr_idx);
}
-out:
- return err;
}
/**
@@ -2241,53 +2080,45 @@ out:
static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
- irqreturn_t (*handler)(int, void *);
- int i, vector, q_vectors, err;
+ int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
+ int vector, err;
int ri = 0, ti = 0;
- /* Decrement for Other and TCP Timer vectors */
- q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
-
- err = ixgbe_map_rings_to_vectors(adapter);
- if (err)
- return err;
-
-#define SET_HANDLER(_v) (((_v)->rx.count && (_v)->tx.count) \
- ? &ixgbe_msix_clean_many : \
- (_v)->rx.count ? &ixgbe_msix_clean_rx : \
- (_v)->tx.count ? &ixgbe_msix_clean_tx : \
- NULL)
for (vector = 0; vector < q_vectors; vector++) {
struct ixgbe_q_vector *q_vector = adapter->q_vector[vector];
- handler = SET_HANDLER(q_vector);
+ struct msix_entry *entry = &adapter->msix_entries[vector];
- if (handler == &ixgbe_msix_clean_rx) {
+ if (q_vector->tx.ring && q_vector->rx.ring) {
snprintf(q_vector->name, sizeof(q_vector->name) - 1,
- "%s-%s-%d", netdev->name, "rx", ri++);
- } else if (handler == &ixgbe_msix_clean_tx) {
+ "%s-%s-%d", netdev->name, "TxRx", ri++);
+ ti++;
+ } else if (q_vector->rx.ring) {
snprintf(q_vector->name, sizeof(q_vector->name) - 1,
- "%s-%s-%d", netdev->name, "tx", ti++);
- } else if (handler == &ixgbe_msix_clean_many) {
+ "%s-%s-%d", netdev->name, "rx", ri++);
+ } else if (q_vector->tx.ring) {
snprintf(q_vector->name, sizeof(q_vector->name) - 1,
- "%s-%s-%d", netdev->name, "TxRx", ri++);
- ti++;
+ "%s-%s-%d", netdev->name, "tx", ti++);
} else {
/* skip this unused q_vector */
continue;
}
- err = request_irq(adapter->msix_entries[vector].vector,
- handler, 0, q_vector->name,
- q_vector);
+ err = request_irq(entry->vector, &ixgbe_msix_clean_rings, 0,
+ q_vector->name, q_vector);
if (err) {
e_err(probe, "request_irq failed for MSIX interrupt "
"Error: %d\n", err);
goto free_queue_irqs;
}
+ /* If Flow Director is enabled, set interrupt affinity */
+ if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) {
+ /* assign the mask for this irq */
+ irq_set_affinity_hint(entry->vector,
+ q_vector->affinity_mask);
+ }
}
- sprintf(adapter->lsc_int_name, "%s:lsc", netdev->name);
err = request_irq(adapter->msix_entries[vector].vector,
- ixgbe_msix_lsc, 0, adapter->lsc_int_name, adapter);
+ ixgbe_msix_other, 0, netdev->name, adapter);
if (err) {
e_err(probe, "request_irq for msix_lsc failed: %d\n", err);
goto free_queue_irqs;
@@ -2296,9 +2127,13 @@ static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
return 0;
free_queue_irqs:
- for (i = vector - 1; i >= 0; i--)
- free_irq(adapter->msix_entries[--vector].vector,
- adapter->q_vector[i]);
+ while (vector) {
+ vector--;
+ irq_set_affinity_hint(adapter->msix_entries[vector].vector,
+ NULL);
+ free_irq(adapter->msix_entries[vector].vector,
+ adapter->q_vector[vector]);
+ }
adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED;
pci_disable_msix(adapter->pdev);
kfree(adapter->msix_entries);
@@ -2307,47 +2142,6 @@ free_queue_irqs:
}
/**
- * ixgbe_irq_enable - Enable default interrupt generation settings
- * @adapter: board private structure
- **/
-static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues,
- bool flush)
-{
- u32 mask;
-
- mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE);
- if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)
- mask |= IXGBE_EIMS_GPI_SDP0;
- if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE)
- mask |= IXGBE_EIMS_GPI_SDP1;
- switch (adapter->hw.mac.type) {
- case ixgbe_mac_82599EB:
- case ixgbe_mac_X540:
- mask |= IXGBE_EIMS_ECC;
- mask |= IXGBE_EIMS_GPI_SDP1;
- mask |= IXGBE_EIMS_GPI_SDP2;
- if (adapter->num_vfs)
- mask |= IXGBE_EIMS_MAILBOX;
- break;
- default:
- break;
- }
- if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)
- mask |= IXGBE_EIMS_FLOW_DIR;
-
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
- if (queues)
- ixgbe_irq_enable_queues(adapter, ~0);
- if (flush)
- IXGBE_WRITE_FLUSH(&adapter->hw);
-
- if (adapter->num_vfs > 32) {
- u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel);
- }
-}
-
-/**
* ixgbe_intr - legacy mode Interrupt Handler
* @irq: interrupt number
* @data: pointer to a network interface device structure
@@ -2455,19 +2249,25 @@ static int ixgbe_request_irq(struct ixgbe_adapter *adapter)
struct net_device *netdev = adapter->netdev;
int err;
- if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
+ /* map all of the rings to the q_vectors */
+ ixgbe_map_rings_to_vectors(adapter);
+
+ if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED)
err = ixgbe_request_msix_irqs(adapter);
- } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) {
+ else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED)
err = request_irq(adapter->pdev->irq, ixgbe_intr, 0,
netdev->name, adapter);
- } else {
+ else
err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED,
netdev->name, adapter);
- }
- if (err)
+ if (err) {
e_err(probe, "request_irq failed, Error %d\n", err);
+ /* place q_vectors and rings back into a known good state */
+ ixgbe_reset_q_vectors(adapter);
+ }
+
return err;
}
@@ -2477,25 +2277,29 @@ static void ixgbe_free_irq(struct ixgbe_adapter *adapter)
int i, q_vectors;
q_vectors = adapter->num_msix_vectors;
-
i = q_vectors - 1;
free_irq(adapter->msix_entries[i].vector, adapter);
-
i--;
+
for (; i >= 0; i--) {
/* free only the irqs that were actually requested */
- if (!adapter->q_vector[i]->rx.count &&
- !adapter->q_vector[i]->tx.count)
+ if (!adapter->q_vector[i]->rx.ring &&
+ !adapter->q_vector[i]->tx.ring)
continue;
+ /* clear the affinity_mask in the IRQ descriptor */
+ irq_set_affinity_hint(adapter->msix_entries[i].vector,
+ NULL);
+
free_irq(adapter->msix_entries[i].vector,
adapter->q_vector[i]);
}
-
- ixgbe_reset_q_vectors(adapter);
} else {
free_irq(adapter->pdev->irq, adapter);
}
+
+ /* clear q_vector state information */
+ ixgbe_reset_q_vectors(adapter);
}
/**
@@ -2513,8 +2317,6 @@ static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter)
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000);
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0);
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0);
- if (adapter->num_vfs > 32)
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0);
break;
default:
break;
@@ -2543,9 +2345,6 @@ static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter)
ixgbe_set_ivar(adapter, 0, 0, 0);
ixgbe_set_ivar(adapter, 1, 0, 0);
- map_vector_to_rxq(adapter, 0, 0);
- map_vector_to_txq(adapter, 0, 0);
-
e_info(hw, "Legacy interrupt IVAR setup done\n");
}
@@ -2562,13 +2361,11 @@ void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter,
struct ixgbe_hw *hw = &adapter->hw;
u64 tdba = ring->dma;
int wait_loop = 10;
- u32 txdctl;
+ u32 txdctl = IXGBE_TXDCTL_ENABLE;
u8 reg_idx = ring->reg_idx;
/* disable queue to avoid issues while updating state */
- txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx));
- IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx),
- txdctl & ~IXGBE_TXDCTL_ENABLE);
+ IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), 0);
IXGBE_WRITE_FLUSH(hw);
IXGBE_WRITE_REG(hw, IXGBE_TDBAL(reg_idx),
@@ -2580,18 +2377,22 @@ void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter,
IXGBE_WRITE_REG(hw, IXGBE_TDT(reg_idx), 0);
ring->tail = hw->hw_addr + IXGBE_TDT(reg_idx);
- /* configure fetching thresholds */
- if (adapter->rx_itr_setting == 0) {
- /* cannot set wthresh when itr==0 */
- txdctl &= ~0x007F0000;
- } else {
- /* enable WTHRESH=8 descriptors, to encourage burst writeback */
- txdctl |= (8 << 16);
- }
- if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
- /* PThresh workaround for Tx hang with DFP enabled. */
- txdctl |= 32;
- }
+ /*
+ * set WTHRESH to encourage burst writeback, it should not be set
+ * higher than 1 when ITR is 0 as it could cause false TX hangs
+ *
+ * In order to avoid issues WTHRESH + PTHRESH should always be equal
+ * to or less than the number of on chip descriptors, which is
+ * currently 40.
+ */
+ if (!adapter->tx_itr_setting || !adapter->rx_itr_setting)
+ txdctl |= (1 << 16); /* WTHRESH = 1 */
+ else
+ txdctl |= (8 << 16); /* WTHRESH = 8 */
+
+ /* PTHRESH=32 is needed to avoid a Tx hang with DFP enabled. */
+ txdctl |= (1 << 8) | /* HTHRESH = 1 */
+ 32; /* PTHRESH = 32 */
/* reinitialize flowdirector state */
if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) &&
@@ -2606,7 +2407,6 @@ void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter,
clear_bit(__IXGBE_HANG_CHECK_ARMED, &ring->state);
/* enable queue */
- txdctl |= IXGBE_TXDCTL_ENABLE;
IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), txdctl);
/* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */
@@ -3478,19 +3278,8 @@ static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter)
q_vectors = 1;
for (q_idx = 0; q_idx < q_vectors; q_idx++) {
- struct napi_struct *napi;
q_vector = adapter->q_vector[q_idx];
- napi = &q_vector->napi;
- if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
- if (!q_vector->rx.count || !q_vector->tx.count) {
- if (q_vector->tx.count == 1)
- napi->poll = &ixgbe_clean_txonly;
- else if (q_vector->rx.count == 1)
- napi->poll = &ixgbe_clean_rxonly;
- }
- }
-
- napi_enable(napi);
+ napi_enable(&q_vector->napi);
}
}
@@ -4045,7 +3834,6 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
struct ixgbe_hw *hw = &adapter->hw;
u32 rxctrl;
int i;
- int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
/* signal that we are down to the interrupt handler */
set_bit(__IXGBE_DOWN, &adapter->state);
@@ -4077,26 +3865,19 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
del_timer_sync(&adapter->service_timer);
- /* disable receive for all VFs and wait one second */
if (adapter->num_vfs) {
- /* ping all the active vfs to let them know we are going down */
- ixgbe_ping_all_vfs(adapter);
-
- /* Disable all VFTE/VFRE TX/RX */
- ixgbe_disable_tx_rx(adapter);
+ /* Clear EITR Select mapping */
+ IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0);
/* Mark all the VFs as inactive */
for (i = 0 ; i < adapter->num_vfs; i++)
adapter->vfinfo[i].clear_to_send = 0;
- }
- /* Cleanup the affinity_hint CPU mask memory and callback */
- for (i = 0; i < num_q_vectors; i++) {
- struct ixgbe_q_vector *q_vector = adapter->q_vector[i];
- /* clear the affinity_mask in the IRQ descriptor */
- irq_set_affinity_hint(adapter->msix_entries[i]. vector, NULL);
- /* release the CPU mask memory */
- free_cpumask_var(q_vector->affinity_mask);
+ /* ping all the active vfs to let them know we are going down */
+ ixgbe_ping_all_vfs(adapter);
+
+ /* Disable all VFTE/VFRE TX/RX */
+ ixgbe_disable_tx_rx(adapter);
}
/* disable transmits in the hardware now that interrupts are off */
@@ -4148,28 +3929,41 @@ static int ixgbe_poll(struct napi_struct *napi, int budget)
struct ixgbe_q_vector *q_vector =
container_of(napi, struct ixgbe_q_vector, napi);
struct ixgbe_adapter *adapter = q_vector->adapter;
- int tx_clean_complete, work_done = 0;
+ struct ixgbe_ring *ring;
+ int per_ring_budget;
+ bool clean_complete = true;
#ifdef CONFIG_IXGBE_DCA
if (adapter->flags & IXGBE_FLAG_DCA_ENABLED)
ixgbe_update_dca(q_vector);
#endif
- tx_clean_complete = ixgbe_clean_tx_irq(q_vector, adapter->tx_ring[0]);
- ixgbe_clean_rx_irq(q_vector, adapter->rx_ring[0], &work_done, budget);
+ for (ring = q_vector->tx.ring; ring != NULL; ring = ring->next)
+ clean_complete &= !!ixgbe_clean_tx_irq(q_vector, ring);
- if (!tx_clean_complete)
- work_done = budget;
+ /* attempt to distribute budget to each queue fairly, but don't allow
+ * the budget to go below 1 because we'll exit polling */
+ if (q_vector->rx.count > 1)
+ per_ring_budget = max(budget/q_vector->rx.count, 1);
+ else
+ per_ring_budget = budget;
- /* If budget not fully consumed, exit the polling mode */
- if (work_done < budget) {
- napi_complete(napi);
- if (adapter->rx_itr_setting & 1)
- ixgbe_set_itr(q_vector);
- if (!test_bit(__IXGBE_DOWN, &adapter->state))
- ixgbe_irq_enable_queues(adapter, IXGBE_EIMS_RTX_QUEUE);
- }
- return work_done;
+ for (ring = q_vector->rx.ring; ring != NULL; ring = ring->next)
+ clean_complete &= ixgbe_clean_rx_irq(q_vector, ring,
+ per_ring_budget);
+
+ /* If all work not completed, return budget and keep polling */
+ if (!clean_complete)
+ return budget;
+
+ /* all work done, exit the polling mode */
+ napi_complete(napi);
+ if (adapter->rx_itr_setting & 1)
+ ixgbe_set_itr(q_vector);
+ if (!test_bit(__IXGBE_DOWN, &adapter->state))
+ ixgbe_irq_enable_queues(adapter, ((u64)1 << q_vector->v_idx));
+
+ return 0;
}
/**
@@ -4810,19 +4604,15 @@ out:
**/
static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter)
{
- int q_idx, num_q_vectors;
+ int v_idx, num_q_vectors;
struct ixgbe_q_vector *q_vector;
- int (*poll)(struct napi_struct *, int);
- if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
+ if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED)
num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
- poll = &ixgbe_clean_rxtx_many;
- } else {
+ else
num_q_vectors = 1;
- poll = &ixgbe_poll;
- }
- for (q_idx = 0; q_idx < num_q_vectors; q_idx++) {
+ for (v_idx = 0; v_idx < num_q_vectors; v_idx++) {
q_vector = kzalloc_node(sizeof(struct ixgbe_q_vector),
GFP_KERNEL, adapter->node);
if (!q_vector)
@@ -4830,25 +4620,35 @@ static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter)
GFP_KERNEL);
if (!q_vector)
goto err_out;
+
q_vector->adapter = adapter;
+ q_vector->v_idx = v_idx;
+
+ /* Allocate the affinity_hint cpumask, configure the mask */
+ if (!alloc_cpumask_var(&q_vector->affinity_mask, GFP_KERNEL))
+ goto err_out;
+ cpumask_set_cpu(v_idx, q_vector->affinity_mask);
+
if (q_vector->tx.count && !q_vector->rx.count)
q_vector->eitr = adapter->tx_eitr_param;
else
q_vector->eitr = adapter->rx_eitr_param;
- q_vector->v_idx = q_idx;
- netif_napi_add(adapter->netdev, &q_vector->napi, (*poll), 64);
- adapter->q_vector[q_idx] = q_vector;
+
+ netif_napi_add(adapter->netdev, &q_vector->napi,
+ ixgbe_poll, 64);
+ adapter->q_vector[v_idx] = q_vector;
}
return 0;
err_out:
- while (q_idx) {
- q_idx--;
- q_vector = adapter->q_vector[q_idx];
+ while (v_idx) {
+ v_idx--;
+ q_vector = adapter->q_vector[v_idx];
netif_napi_del(&q_vector->napi);
+ free_cpumask_var(q_vector->affinity_mask);
kfree(q_vector);
- adapter->q_vector[q_idx] = NULL;
+ adapter->q_vector[v_idx] = NULL;
}
return -ENOMEM;
}
@@ -4863,17 +4663,18 @@ err_out:
**/
static void ixgbe_free_q_vectors(struct ixgbe_adapter *adapter)
{
- int q_idx, num_q_vectors;
+ int v_idx, num_q_vectors;
if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED)
num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
else
num_q_vectors = 1;
- for (q_idx = 0; q_idx < num_q_vectors; q_idx++) {
- struct ixgbe_q_vector *q_vector = adapter->q_vector[q_idx];
- adapter->q_vector[q_idx] = NULL;
+ for (v_idx = 0; v_idx < num_q_vectors; v_idx++) {
+ struct ixgbe_q_vector *q_vector = adapter->q_vector[v_idx];
+ adapter->q_vector[v_idx] = NULL;
netif_napi_del(&q_vector->napi);
+ free_cpumask_var(q_vector->affinity_mask);
kfree(q_vector);
}
}
@@ -5091,7 +4892,7 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
adapter->rx_ring_count = IXGBE_DEFAULT_RXD;
/* set default work limits */
- adapter->tx_work_limit = adapter->tx_ring_count;
+ adapter->tx_work_limit = IXGBE_DEFAULT_TX_WORK;
/* initialize eeprom parameters */
if (ixgbe_init_eeprom_params_generic(hw)) {
@@ -6959,7 +6760,7 @@ static void ixgbe_netpoll(struct net_device *netdev)
int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
for (i = 0; i < num_q_vectors; i++) {
struct ixgbe_q_vector *q_vector = adapter->q_vector[i];
- ixgbe_msix_clean_many(0, q_vector);
+ ixgbe_msix_clean_rings(0, q_vector);
}
} else {
ixgbe_intr(adapter->pdev->irq, netdev);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 9f618ee7d333..a9f8839bffb9 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -982,6 +982,7 @@
#define IXGBE_CTRL_GIO_DIS 0x00000004 /* Global IO Master Disable bit */
#define IXGBE_CTRL_LNK_RST 0x00000008 /* Link Reset. Resets everything. */
#define IXGBE_CTRL_RST 0x04000000 /* Reset (SW) */
+#define IXGBE_CTRL_RST_MASK (IXGBE_CTRL_LNK_RST | IXGBE_CTRL_RST)
/* FACTPS */
#define IXGBE_FACTPS_LFS 0x40000000 /* LAN Function Select */
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
index 2696c78e9f46..bbfe8c40a784 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
@@ -94,13 +94,8 @@ static s32 ixgbe_setup_mac_link_X540(struct ixgbe_hw *hw,
static s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw)
{
ixgbe_link_speed link_speed;
- s32 status = 0;
- u32 ctrl;
- u32 ctrl_ext;
- u32 reset_bit;
- u32 i;
- u32 autoc;
- u32 autoc2;
+ s32 status;
+ u32 ctrl, i;
bool link_up = false;
/* Call adapter stop to disable tx/rx and clear interrupts */
@@ -119,53 +114,42 @@ mac_reset_top:
* mng is using it. If link is down or the flag to force full link
* reset is set, then perform link reset.
*/
- if (hw->force_full_reset) {
- reset_bit = IXGBE_CTRL_LNK_RST;
- } else {
+ ctrl = IXGBE_CTRL_LNK_RST;
+ if (!hw->force_full_reset) {
hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
- if (!link_up)
- reset_bit = IXGBE_CTRL_LNK_RST;
- else
- reset_bit = IXGBE_CTRL_RST;
+ if (link_up)
+ ctrl = IXGBE_CTRL_RST;
}
- ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
- IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | reset_bit));
+ ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
+ IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
IXGBE_WRITE_FLUSH(hw);
/* Poll for reset bit to self-clear indicating reset is complete */
for (i = 0; i < 10; i++) {
udelay(1);
ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
- if (!(ctrl & reset_bit))
+ if (!(ctrl & IXGBE_CTRL_RST_MASK))
break;
}
- if (ctrl & reset_bit) {
+
+ if (ctrl & IXGBE_CTRL_RST_MASK) {
status = IXGBE_ERR_RESET_FAILED;
hw_dbg(hw, "Reset polling failed to complete.\n");
}
+ msleep(50);
+
/*
* Double resets are required for recovery from certain error
* conditions. Between resets, it is necessary to stall to allow time
- * for any pending HW events to complete. We use 1usec since that is
- * what is needed for ixgbe_disable_pcie_master(). The second reset
- * then clears out any effects of those events.
+ * for any pending HW events to complete.
*/
if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
- udelay(1);
goto mac_reset_top;
}
- /* Clear PF Reset Done bit so PF/VF Mail Ops can work */
- ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
- ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD;
- IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext);
- IXGBE_WRITE_FLUSH(hw);
-
- msleep(50);
-
/* Set the Rx packet buffer size. */
IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0), 384 << IXGBE_RXPBSIZE_SHIFT);
@@ -173,31 +157,6 @@ mac_reset_top:
hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
/*
- * Store the original AUTOC/AUTOC2 values if they have not been
- * stored off yet. Otherwise restore the stored original
- * values since the reset operation sets back to defaults.
- */
- autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
- autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
- if (hw->mac.orig_link_settings_stored == false) {
- hw->mac.orig_autoc = autoc;
- hw->mac.orig_autoc2 = autoc2;
- hw->mac.orig_link_settings_stored = true;
- } else {
- if (autoc != hw->mac.orig_autoc)
- IXGBE_WRITE_REG(hw, IXGBE_AUTOC, (hw->mac.orig_autoc |
- IXGBE_AUTOC_AN_RESTART));
-
- if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
- (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
- autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
- autoc2 |= (hw->mac.orig_autoc2 &
- IXGBE_AUTOC2_UPPER_MASK);
- IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
- }
- }
-
- /*
* Store MAC address from RAR0, clear receive address registers, and
* clear the multicast table. Also reset num_rar_entries to 128,
* since we modify this value when programming the SAN MAC address.
@@ -205,9 +164,6 @@ mac_reset_top:
hw->mac.num_rar_entries = IXGBE_X540_MAX_TX_QUEUES;
hw->mac.ops.init_rx_addrs(hw);
- /* Store the permanent mac address */
- hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
-
/* Store the permanent SAN mac address */
hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
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