diff options
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_main.c')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 52 |
1 files changed, 48 insertions, 4 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 49a90378456..01884256f4c 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -2841,11 +2841,55 @@ static inline bool ixgbe_cache_ring_dcb(struct ixgbe_adapter *adapter) } ret = true; } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { - for (i = 0; i < dcb_i; i++) { - adapter->rx_ring[i].reg_idx = i << 4; - adapter->tx_ring[i].reg_idx = i << 4; + if (dcb_i == 8) { + /* + * Tx TC0 starts at: descriptor queue 0 + * Tx TC1 starts at: descriptor queue 32 + * Tx TC2 starts at: descriptor queue 64 + * Tx TC3 starts at: descriptor queue 80 + * Tx TC4 starts at: descriptor queue 96 + * Tx TC5 starts at: descriptor queue 104 + * Tx TC6 starts at: descriptor queue 112 + * Tx TC7 starts at: descriptor queue 120 + * + * Rx TC0-TC7 are offset by 16 queues each + */ + for (i = 0; i < 3; i++) { + adapter->tx_ring[i].reg_idx = i << 5; + adapter->rx_ring[i].reg_idx = i << 4; + } + for ( ; i < 5; i++) { + adapter->tx_ring[i].reg_idx = + ((i + 2) << 4); + adapter->rx_ring[i].reg_idx = i << 4; + } + for ( ; i < dcb_i; i++) { + adapter->tx_ring[i].reg_idx = + ((i + 8) << 3); + adapter->rx_ring[i].reg_idx = i << 4; + } + + ret = true; + } else if (dcb_i == 4) { + /* + * Tx TC0 starts at: descriptor queue 0 + * Tx TC1 starts at: descriptor queue 64 + * Tx TC2 starts at: descriptor queue 96 + * Tx TC3 starts at: descriptor queue 112 + * + * Rx TC0-TC3 are offset by 32 queues each + */ + adapter->tx_ring[0].reg_idx = 0; + adapter->tx_ring[1].reg_idx = 64; + adapter->tx_ring[2].reg_idx = 96; + adapter->tx_ring[3].reg_idx = 112; + for (i = 0 ; i < dcb_i; i++) + adapter->rx_ring[i].reg_idx = i << 5; + + ret = true; + } else { + ret = false; } - ret = true; } else { ret = false; } |