diff options
| author | Emil Tantilov <emil.s.tantilov@intel.com> | 2011-03-19 02:32:46 +0100 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-04-14 04:22:18 +0200 |
| commit | 3d5c520727ce3dbf418eec38e431856708f946f8 (patch) | |
| tree | 50b944c1a794b0a5b178ca04063fa8f4631ee268 /drivers | |
| parent | ixgbe: refactor common start_hw code for 82599 and x540 (diff) | |
| download | linux-3d5c520727ce3dbf418eec38e431856708f946f8.tar.xz linux-3d5c520727ce3dbf418eec38e431856708f946f8.zip | |
ixgbe: move disabling of relaxed ordering in start_hw()
Relaxed ordering can lead to issues with some chipsets.
This patch makes sure that it is disabled by default and
not only when DCA is on.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_82598.c | 21 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_common.c | 15 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 4 |
3 files changed, 35 insertions, 5 deletions
diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c index c9b6574cdd72..a93275fd260f 100644 --- a/drivers/net/ixgbe/ixgbe_82598.c +++ b/drivers/net/ixgbe/ixgbe_82598.c @@ -197,14 +197,33 @@ out: * @hw: pointer to hardware structure * * Starts the hardware using the generic start_hw function. - * Then set pcie completion timeout + * Disables relaxed ordering Then set pcie completion timeout + * **/ static s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw) { + u32 regval; + u32 i; s32 ret_val = 0; ret_val = ixgbe_start_hw_generic(hw); + /* Disable relaxed ordering */ + for (i = 0; ((i < hw->mac.max_tx_queues) && + (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) { + regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i)); + regval &= ~IXGBE_DCA_TXCTRL_TX_WB_RO_EN; + IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval); + } + + for (i = 0; ((i < hw->mac.max_rx_queues) && + (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) { + regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); + regval &= ~(IXGBE_DCA_RXCTRL_DESC_WRO_EN | + IXGBE_DCA_RXCTRL_DESC_HSRO_EN); + IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval); + } + /* set the completion timeout for interface */ if (ret_val == 0) ixgbe_set_pcie_completion_timeout(hw); diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c index c66fd957578c..1b8b3cd1664f 100644 --- a/drivers/net/ixgbe/ixgbe_common.c +++ b/drivers/net/ixgbe/ixgbe_common.c @@ -108,6 +108,7 @@ s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw) s32 ixgbe_start_hw_gen2(struct ixgbe_hw *hw) { u32 i; + u32 regval; /* Clear the rate limiters */ for (i = 0; i < hw->mac.max_tx_queues; i++) { @@ -116,6 +117,20 @@ s32 ixgbe_start_hw_gen2(struct ixgbe_hw *hw) } IXGBE_WRITE_FLUSH(hw); + /* Disable relaxed ordering */ + for (i = 0; i < hw->mac.max_tx_queues; i++) { + regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(i)); + regval &= ~IXGBE_DCA_TXCTRL_TX_WB_RO_EN; + IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(i), regval); + } + + for (i = 0; i < hw->mac.max_rx_queues; i++) { + regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); + regval &= ~(IXGBE_DCA_RXCTRL_DESC_WRO_EN | + IXGBE_DCA_RXCTRL_DESC_HSRO_EN); + IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval); + } + return 0; } diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 3dbe6896b2c3..3148e2182e92 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -947,8 +947,6 @@ static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter, rxctrl |= IXGBE_DCA_RXCTRL_DESC_DCA_EN; rxctrl |= IXGBE_DCA_RXCTRL_HEAD_DCA_EN; rxctrl &= ~(IXGBE_DCA_RXCTRL_DESC_RRO_EN); - rxctrl &= ~(IXGBE_DCA_RXCTRL_DESC_WRO_EN | - IXGBE_DCA_RXCTRL_DESC_HSRO_EN); IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(reg_idx), rxctrl); } @@ -966,7 +964,6 @@ static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK; txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN; - txctrl &= ~IXGBE_DCA_TXCTRL_TX_WB_RO_EN; IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(reg_idx), txctrl); break; case ixgbe_mac_82599EB: @@ -976,7 +973,6 @@ static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, txctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) << IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599); txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN; - txctrl &= ~IXGBE_DCA_TXCTRL_TX_WB_RO_EN; IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(reg_idx), txctrl); break; default: |