diff options
| author | David Arinzon <darinzon@amazon.com> | 2024-01-01 19:08:48 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-01-03 18:00:57 -0800 |
| commit | 23ec97498026f57793be1f76c4e78b494911db1a (patch) | |
| tree | c7eac98e331966c3b416e75b2107e2f6892754ad | |
| parent | 009b387659d3c739863b61a9f142e731f5723153 (diff) | |
net: ena: Introduce total_tx_size field in ena_tx_buffer struct
To avoid de-referencing skb or xdp_frame when we poll for TX completion
(where they might not be in the cache), save the total TX packet size in
the ena_tx_buffer object representing the packet.
Also the 'print_once' field's type was changed from u32 to u8 to allow
adding the 'total_tx_size' without changing the total size of the
struct.
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: David Arinzon <darinzon@amazon.com>
Link: https://lore.kernel.org/r/20240101190855.18739-5-darinzon@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_netdev.c | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_netdev.h | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index b7f300b55fbb..3c84259e06f9 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -130,6 +130,7 @@ int ena_xmit_common(struct ena_adapter *adapter, u64_stats_update_end(&ring->syncp); tx_info->tx_descs = nb_hw_desc; + tx_info->total_tx_size = bytes; tx_info->last_jiffies = jiffies; tx_info->print_once = 0; @@ -842,7 +843,7 @@ static int ena_clean_tx_irq(struct ena_ring *tx_ring, u32 budget) "tx_poll: q %d skb %p completed\n", tx_ring->qid, skb); - tx_bytes += skb->len; + tx_bytes += tx_info->total_tx_size; dev_kfree_skb(skb); tx_pkts++; total_done += tx_info->tx_descs; diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h index 78a4dee5a3c6..d3fc03f2ff47 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.h +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h @@ -145,12 +145,14 @@ struct ena_tx_buffer { /* num of buffers used by this skb */ u32 num_of_bufs; + /* Total size of all buffers in bytes */ + u32 total_tx_size; /* Indicate if bufs[0] map the linear data of the skb. */ u8 map_linear_data; /* Used for detect missing tx packets to limit the number of prints */ - u32 print_once; + u8 print_once; /* Save the last jiffies to detect missing tx packets * * sets to non zero value on ena_start_xmit and set to zero on |