diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 96 |
1 files changed, 83 insertions, 13 deletions
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c index af2b2e2..94b3e82 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c @@ -656,7 +656,7 @@ static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter) return err; } -int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr) +int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr, int txq) { struct qlcnic_hardware_context *ahw = adapter->ahw; int num_msix, err = 0; @@ -667,8 +667,11 @@ int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr) if (ahw->msix_supported) { num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(), num_intr)); - if (qlcnic_check_multi_tx(adapter)) + if (qlcnic_check_multi_tx(adapter)) { + if (txq) + adapter->max_drv_tx_rings = txq; num_msix += adapter->max_drv_tx_rings; + } } else { num_msix = 1; } @@ -1990,11 +1993,9 @@ qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev, netdev->priv_flags |= IFF_UNICAST_FLT; netdev->irq = adapter->msix_entries[0].vector; - if (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter)) { - err = qlcnic_set_real_num_queues(adapter, netdev); - if (err) - return err; - } + err = qlcnic_set_real_num_queues(adapter, netdev); + if (err) + return err; err = register_netdev(netdev); if (err) { @@ -2253,7 +2254,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) "Device does not support MSI interrupts\n"); if (qlcnic_82xx_check(adapter)) { - err = qlcnic_setup_intr(adapter, 0); + err = qlcnic_setup_intr(adapter, 0, 0); if (err) { dev_err(&pdev->dev, "Failed to setup interrupt\n"); goto err_out_disable_msi; @@ -3371,7 +3372,7 @@ static int qlcnic_attach_func(struct pci_dev *pdev) qlcnic_clr_drv_state(adapter); kfree(adapter->msix_entries); adapter->msix_entries = NULL; - err = qlcnic_setup_intr(adapter, 0); + err = qlcnic_setup_intr(adapter, 0, 0); if (err) { kfree(adapter->msix_entries); @@ -3496,6 +3497,49 @@ qlcnicvf_start_firmware(struct qlcnic_adapter *adapter) return err; } +int qlcnic_validate_max_tx_rings(struct qlcnic_adapter *adapter, int txq) +{ + struct net_device *netdev = adapter->netdev; + u8 max_hw = QLCNIC_MAX_TX_RINGS; + u32 max_allowed; + + if (!qlcnic_82xx_check(adapter)) { + netdev_err(netdev, "No Multi TX-Q support\n"); + return -EINVAL; + } + + if (!qlcnic_use_msi_x && !qlcnic_use_msi) { + netdev_err(netdev, "No Multi TX-Q support in INT-x mode\n"); + return -EINVAL; + } + + if (!qlcnic_check_multi_tx(adapter)) { + netdev_err(netdev, "No Multi TX-Q support\n"); + return -EINVAL; + } + + if (txq > QLCNIC_MAX_TX_RINGS) { + netdev_err(netdev, "Invalid ring count\n"); + return -EINVAL; + } + + max_allowed = rounddown_pow_of_two(min_t(int, max_hw, + num_online_cpus())); + if ((txq > max_allowed) || !is_power_of_2(txq)) { + if (!is_power_of_2(txq)) + netdev_err(netdev, + "TX queue should be a power of 2\n"); + if (txq > num_online_cpus()) + netdev_err(netdev, + "Tx queue should not be higher than [%u], number of online CPUs in the system\n", + num_online_cpus()); + netdev_err(netdev, "Unable to configure %u Tx rings\n", txq); + return -EINVAL; + } + + return 0; +} + int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter, __u32 val) { @@ -3503,6 +3547,12 @@ int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter, u8 max_hw = adapter->ahw->max_rx_ques; u32 max_allowed; + if (qlcnic_82xx_check(adapter) && !qlcnic_use_msi_x && + !qlcnic_use_msi) { + netdev_err(netdev, "No RSS support in INT-x mode\n"); + return -EINVAL; + } + if (val > QLCNIC_MAX_SDS_RINGS) { netdev_err(netdev, "RSS value should not be higher than %u\n", QLCNIC_MAX_SDS_RINGS); @@ -3535,27 +3585,48 @@ int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter, return 0; } -int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len) +int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, int txq) { int err; struct net_device *netdev = adapter->netdev; + int num_msix; if (test_bit(__QLCNIC_RESETTING, &adapter->state)) return -EBUSY; + if (qlcnic_82xx_check(adapter) && !qlcnic_use_msi_x && + !qlcnic_use_msi) { + netdev_err(netdev, "No RSS support in INT-x mode\n"); + return -EINVAL; + } + netif_device_detach(netdev); if (netif_running(netdev)) __qlcnic_down(adapter, netdev); qlcnic_detach(adapter); + if (qlcnic_82xx_check(adapter)) { + if (txq != 0) + adapter->max_drv_tx_rings = txq; + + if (qlcnic_check_multi_tx(adapter) && + (txq > adapter->max_drv_tx_rings)) + num_msix = adapter->max_drv_tx_rings; + else + num_msix = data; + } + if (qlcnic_83xx_check(adapter)) { qlcnic_83xx_free_mbx_intr(adapter); qlcnic_83xx_enable_mbx_poll(adapter); } + netif_set_real_num_tx_queues(netdev, adapter->max_drv_tx_rings); + qlcnic_teardown_intr(adapter); - err = qlcnic_setup_intr(adapter, data); + + err = qlcnic_setup_intr(adapter, data, txq); if (err) { kfree(adapter->msix_entries); netdev_err(netdev, "failed to setup interrupt\n"); @@ -3583,8 +3654,7 @@ int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len) goto done; qlcnic_restore_indev_addr(netdev, NETDEV_UP); } - err = len; - done: +done: netif_device_attach(netdev); clear_bit(__QLCNIC_RESETTING, &adapter->state); return err; |