diff options
| author | Shailend Chand <shailend@google.com> | 2022-10-29 19:53:22 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-11-02 14:52:51 +0300 |
| commit | 82fd151d38d9fda714c5bb2e9e79ecd6bdc72da6 (patch) | |
| tree | 2182458d2230c574ea1896c6931190e0fcd84818 /drivers/net/ethernet/google/gve/gve_ethtool.c | |
| parent | d08b0f8f46e45a274fc8c9a5bc92cb9da70d9887 (diff) | |
| download | linux-82fd151d38d9fda714c5bb2e9e79ecd6bdc72da6.tar.xz | |
gve: Reduce alloc and copy costs in the GQ rx path
Previously, even if just one of the many fragments of a 9k packet
required a copy, we'd copy the whole packet into a freshly-allocated
9k-sized linear SKB, and this led to performance issues.
By having a pool of pages to copy into, each fragment can be
independently handled, leading to a reduced incidence of
allocation and copy.
Signed-off-by: Shailend Chand <shailend@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/google/gve/gve_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_ethtool.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/google/gve/gve_ethtool.c b/drivers/net/ethernet/google/gve/gve_ethtool.c index 50b384910c83..ce574d097e28 100644 --- a/drivers/net/ethernet/google/gve/gve_ethtool.c +++ b/drivers/net/ethernet/google/gve/gve_ethtool.c @@ -45,6 +45,7 @@ static const char gve_gstrings_main_stats[][ETH_GSTRING_LEN] = { static const char gve_gstrings_rx_stats[][ETH_GSTRING_LEN] = { "rx_posted_desc[%u]", "rx_completed_desc[%u]", "rx_consumed_desc[%u]", "rx_bytes[%u]", "rx_cont_packet_cnt[%u]", "rx_frag_flip_cnt[%u]", "rx_frag_copy_cnt[%u]", + "rx_frag_alloc_cnt[%u]", "rx_dropped_pkt[%u]", "rx_copybreak_pkt[%u]", "rx_copied_pkt[%u]", "rx_queue_drop_cnt[%u]", "rx_no_buffers_posted[%u]", "rx_drops_packet_over_mru[%u]", "rx_drops_invalid_checksum[%u]", @@ -271,6 +272,7 @@ gve_get_ethtool_stats(struct net_device *netdev, data[i++] = rx->rx_cont_packet_cnt; data[i++] = rx->rx_frag_flip_cnt; data[i++] = rx->rx_frag_copy_cnt; + data[i++] = rx->rx_frag_alloc_cnt; /* rx dropped packets */ data[i++] = tmp_rx_skb_alloc_fail + tmp_rx_buf_alloc_fail + |