diff options
author | David S. Miller <davem@davemloft.net> | 2019-09-15 14:17:27 +0200 |
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committer | David S. Miller <davem@davemloft.net> | 2019-09-15 14:17:27 +0200 |
commit | aa2eaa8c272a3211dec07ce9c6c863a7e355c10e (patch) | |
tree | 8454a23d36b2ff36133c276ee0ba80eabc00850e /drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | |
parent | a3d3c74da49c65fc63a937fa559186b0e16adca3 (diff) | |
parent | 1609d7604b847a9820e63393d1a3b6cac7286d40 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Minor overlapping changes in the btusb and ixgbe drivers.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c')
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 30 |
1 files changed, 11 insertions, 19 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c index ad802a8909e0..a37dcd140f63 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c @@ -642,19 +642,17 @@ static void ixgbe_clean_xdp_tx_buffer(struct ixgbe_ring *tx_ring, bool ixgbe_clean_xdp_tx_irq(struct ixgbe_q_vector *q_vector, struct ixgbe_ring *tx_ring, int napi_budget) { + u16 ntc = tx_ring->next_to_clean, ntu = tx_ring->next_to_use; unsigned int total_packets = 0, total_bytes = 0; - u32 i = tx_ring->next_to_clean, xsk_frames = 0; - unsigned int budget = q_vector->tx.work_limit; struct xdp_umem *umem = tx_ring->xsk_umem; union ixgbe_adv_tx_desc *tx_desc; struct ixgbe_tx_buffer *tx_bi; - bool xmit_done; + u32 xsk_frames = 0; - tx_bi = &tx_ring->tx_buffer_info[i]; - tx_desc = IXGBE_TX_DESC(tx_ring, i); - i -= tx_ring->count; + tx_bi = &tx_ring->tx_buffer_info[ntc]; + tx_desc = IXGBE_TX_DESC(tx_ring, ntc); - do { + while (ntc != ntu) { if (!(tx_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD))) break; @@ -670,22 +668,18 @@ bool ixgbe_clean_xdp_tx_irq(struct ixgbe_q_vector *q_vector, tx_bi++; tx_desc++; - i++; - if (unlikely(!i)) { - i -= tx_ring->count; + ntc++; + if (unlikely(ntc == tx_ring->count)) { + ntc = 0; tx_bi = tx_ring->tx_buffer_info; tx_desc = IXGBE_TX_DESC(tx_ring, 0); } /* issue prefetch for next Tx descriptor */ prefetch(tx_desc); + } - /* update budget accounting */ - budget--; - } while (likely(budget)); - - i += tx_ring->count; - tx_ring->next_to_clean = i; + tx_ring->next_to_clean = ntc; u64_stats_update_begin(&tx_ring->syncp); tx_ring->stats.bytes += total_bytes; @@ -704,9 +698,7 @@ bool ixgbe_clean_xdp_tx_irq(struct ixgbe_q_vector *q_vector, xsk_clear_tx_need_wakeup(tx_ring->xsk_umem); } - xmit_done = ixgbe_xmit_zc(tx_ring, q_vector->tx.work_limit); - - return budget > 0 && xmit_done; + return ixgbe_xmit_zc(tx_ring, q_vector->tx.work_limit); } int ixgbe_xsk_wakeup(struct net_device *dev, u32 qid, u32 flags) |