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ixgbe: Move configuration of set_real_num_rx/tx_queues into open

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It makes much more sense for us to configure the real number of Tx and Rx
queues in the ixgbe_open call than it does in ixgbe_set_num_queues.  By
setting the number in ixgbe_open we can avoid a number of unecessary
updates and only have to make the calls once.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2012-07-12 05:52:53 +00:00 committed by Jeff Kirsher
parent de3d5b94bc
commit ac802f5dfe
2 changed files with 38 additions and 56 deletions
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58
drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
View file

@ -349,7 +349,7 @@ static bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter)
* fallthrough conditions.
*
**/
static int ixgbe_set_num_queues(struct ixgbe_adapter *adapter)
static void ixgbe_set_num_queues(struct ixgbe_adapter *adapter)
{
/* Start with base case */
adapter->num_rx_queues = 1;
@ -358,29 +358,14 @@ static int ixgbe_set_num_queues(struct ixgbe_adapter *adapter)
adapter->num_rx_queues_per_pool = 1;
if (ixgbe_set_sriov_queues(adapter))
goto done;
return;
#ifdef CONFIG_IXGBE_DCB
if (ixgbe_set_dcb_queues(adapter))
goto done;
return;
#endif
if (ixgbe_set_rss_queues(adapter))
goto done;
/* fallback to base case */
adapter->num_rx_queues = 1;
adapter->num_tx_queues = 1;
done:
if ((adapter->netdev->reg_state == NETREG_UNREGISTERED) ||
(adapter->netdev->reg_state == NETREG_UNREGISTERING))
return 0;
/* Notify the stack of the (possibly) reduced queue counts. */
netif_set_real_num_tx_queues(adapter->netdev, adapter->num_tx_queues);
return netif_set_real_num_rx_queues(adapter->netdev,
adapter->num_rx_queues);
ixgbe_set_rss_queues(adapter);
}
static void ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter,
@ -710,11 +695,10 @@ static void ixgbe_reset_interrupt_capability(struct ixgbe_adapter *adapter)
* Attempt to configure the interrupts using the best available
* capabilities of the hardware and the kernel.
**/
static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter)
static void ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter)
{
struct ixgbe_hw *hw = &adapter->hw;
int err = 0;
int vector, v_budget;
int vector, v_budget, err;
/*
* It's easy to be greedy for MSI-X vectors, but it really
@ -747,7 +731,7 @@ static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter)
ixgbe_acquire_msix_vectors(adapter, v_budget);
if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED)
goto out;
return;
}
adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
@ -762,25 +746,17 @@ static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter)
if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
ixgbe_disable_sriov(adapter);
err = ixgbe_set_num_queues(adapter);
if (err)
return err;
ixgbe_set_num_queues(adapter);
adapter->num_q_vectors = 1;
err = pci_enable_msi(adapter->pdev);
if (!err) {
adapter->flags |= IXGBE_FLAG_MSI_ENABLED;
} else {
if (err) {
netif_printk(adapter, hw, KERN_DEBUG, adapter->netdev,
"Unable to allocate MSI interrupt, "
"falling back to legacy. Error: %d\n", err);
/* reset err */
err = 0;
return;
}
out:
return err;
adapter->flags |= IXGBE_FLAG_MSI_ENABLED;
}
/**
@ -798,15 +774,10 @@ int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter)
int err;
/* Number of supported queues */
err = ixgbe_set_num_queues(adapter);
if (err)
return err;
ixgbe_set_num_queues(adapter);
err = ixgbe_set_interrupt_capability(adapter);
if (err) {
e_dev_err("Unable to setup interrupt capabilities\n");
goto err_set_interrupt;
}
/* Set interrupt mode */
ixgbe_set_interrupt_capability(adapter);
err = ixgbe_alloc_q_vectors(adapter);
if (err) {
@ -826,7 +797,6 @@ int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter)
err_alloc_q_vectors:
ixgbe_reset_interrupt_capability(adapter);
err_set_interrupt:
return err;
}

36
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View file

@ -4798,10 +4798,26 @@ static int ixgbe_open(struct net_device *netdev)
if (err)
goto err_req_irq;
/* Notify the stack of the actual queue counts. */
err = netif_set_real_num_tx_queues(netdev,
adapter->num_rx_pools > 1 ? 1 :
adapter->num_tx_queues);
if (err)
goto err_set_queues;
err = netif_set_real_num_rx_queues(netdev,
adapter->num_rx_pools > 1 ? 1 :
adapter->num_rx_queues);
if (err)
goto err_set_queues;
ixgbe_up_complete(adapter);
return 0;
err_set_queues:
ixgbe_free_irq(adapter);
err_req_irq:
ixgbe_free_all_rx_resources(adapter);
err_setup_rx:
@ -4864,23 +4880,19 @@ static int ixgbe_resume(struct pci_dev *pdev)
pci_wake_from_d3(pdev, false);
rtnl_lock();
err = ixgbe_init_interrupt_scheme(adapter);
rtnl_unlock();
if (err) {
e_dev_err("Cannot initialize interrupts for device\n");
return err;
}
ixgbe_reset(adapter);
IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0);
if (netif_running(netdev)) {
rtnl_lock();
err = ixgbe_init_interrupt_scheme(adapter);
if (!err && netif_running(netdev))
err = ixgbe_open(netdev);
if (err)
return err;
}
rtnl_unlock();
if (err)
return err;
netif_device_attach(netdev);