diff options
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c | 80 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 12 |
2 files changed, 42 insertions, 50 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c index c03d771c5eb..4c3822f04bb 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c @@ -42,42 +42,37 @@ static void ixgbe_get_first_reg_idx(struct ixgbe_adapter *adapter, u8 tc, switch (hw->mac.type) { case ixgbe_mac_82598EB: - *tx = tc << 2; - *rx = tc << 3; + /* TxQs/TC: 4 RxQs/TC: 8 */ + *tx = tc << 2; /* 0, 4, 8, 12, 16, 20, 24, 28 */ + *rx = tc << 3; /* 0, 8, 16, 24, 32, 40, 48, 56 */ break; case ixgbe_mac_82599EB: case ixgbe_mac_X540: if (num_tcs > 4) { - if (tc < 3) { - *tx = tc << 5; - *rx = tc << 4; - } else if (tc < 5) { - *tx = ((tc + 2) << 4); - *rx = tc << 4; - } else if (tc < num_tcs) { - *tx = ((tc + 8) << 3); - *rx = tc << 4; - } + /* + * TCs : TC0/1 TC2/3 TC4-7 + * TxQs/TC: 32 16 8 + * RxQs/TC: 16 16 16 + */ + *rx = tc << 4; + if (tc < 3) + *tx = tc << 5; /* 0, 32, 64 */ + else if (tc < 5) + *tx = (tc + 2) << 4; /* 80, 96 */ + else + *tx = (tc + 8) << 3; /* 104, 112, 120 */ } else { - *rx = tc << 5; - switch (tc) { - case 0: - *tx = 0; - break; - case 1: - *tx = 64; - break; - case 2: - *tx = 96; - break; - case 3: - *tx = 112; - break; - default: - break; - } + /* + * TCs : TC0 TC1 TC2/3 + * TxQs/TC: 64 32 16 + * RxQs/TC: 32 32 32 + */ + *rx = tc << 5; + if (tc < 2) + *tx = tc << 6; /* 0, 64 */ + else + *tx = (tc + 4) << 4; /* 96, 112 */ } - break; default: break; } @@ -90,25 +85,26 @@ static void ixgbe_get_first_reg_idx(struct ixgbe_adapter *adapter, u8 tc, * Cache the descriptor ring offsets for DCB to the assigned rings. * **/ -static inline bool ixgbe_cache_ring_dcb(struct ixgbe_adapter *adapter) +static bool ixgbe_cache_ring_dcb(struct ixgbe_adapter *adapter) { struct net_device *dev = adapter->netdev; - int i, j, k; + unsigned int tx_idx, rx_idx; + int tc, offset, rss_i, i; u8 num_tcs = netdev_get_num_tc(dev); - if (!num_tcs) + /* verify we have DCB queueing enabled before proceeding */ + if (num_tcs <= 1) return false; - for (i = 0, k = 0; i < num_tcs; i++) { - unsigned int tx_s, rx_s; - u16 count = dev->tc_to_txq[i].count; + rss_i = adapter->ring_feature[RING_F_RSS].indices; - ixgbe_get_first_reg_idx(adapter, i, &tx_s, &rx_s); - for (j = 0; j < count; j++, k++) { - adapter->tx_ring[k]->reg_idx = tx_s + j; - adapter->rx_ring[k]->reg_idx = rx_s + j; - adapter->tx_ring[k]->dcb_tc = i; - adapter->rx_ring[k]->dcb_tc = i; + for (tc = 0, offset = 0; tc < num_tcs; tc++, offset += rss_i) { + ixgbe_get_first_reg_idx(adapter, tc, &tx_idx, &rx_idx); + for (i = 0; i < rss_i; i++, tx_idx++, rx_idx++) { + adapter->tx_ring[offset + i]->reg_idx = tx_idx; + adapter->rx_ring[offset + i]->reg_idx = rx_idx; + adapter->tx_ring[offset + i]->dcb_tc = tc; + adapter->rx_ring[offset + i]->dcb_tc = tc; } } diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 7f2aa220501..32c8cd649cb 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -3608,20 +3608,16 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) /* Enable RSS Hash per TC */ if (hw->mac.type != ixgbe_mac_82598EB) { - int i; - u32 reg = 0; - u8 msb = 0; - u8 rss_i = adapter->netdev->tc_to_txq[0].count - 1; + u32 msb = 0; + u16 rss_i = adapter->ring_feature[RING_F_RSS].indices - 1; while (rss_i) { msb++; rss_i >>= 1; } - for (i = 0; i < MAX_TRAFFIC_CLASS; i++) - reg |= msb << IXGBE_RQTC_SHIFT_TC(i); - - IXGBE_WRITE_REG(hw, IXGBE_RQTC, reg); + /* write msb to all 8 TCs in one write */ + IXGBE_WRITE_REG(hw, IXGBE_RQTC, msb * 0x11111111); } } #endif |