diff options
| author | Ioana Ciornei <ioana.ciornei@nxp.com> | 2020-06-29 21:47:11 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-06-29 17:42:48 -0700 |
| commit | d70446ee1f406ef4c6dd299a8482dc98ef07ed0e (patch) | |
| tree | 2d55a9a97258cf365fad5cc85d7c2efc59bdcf09 /drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | |
| parent | 17af2c4757c65c2b30c1df0f6fb758c4c2b2d8b8 (diff) | |
dpaa2-eth: send a scatter-gather FD instead of realloc-ing
Instead of realloc-ing the skb on the Tx path when the provided headroom
is smaller than the HW requirements, create a Scatter/Gather frame
descriptor with only one entry.
Remove the '[drv] tx realloc frames' counter exposed previously through
ethtool since it is no longer used.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h')
| -rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h index 2d7ada0f0dbd..9e4ceb92f240 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h @@ -125,6 +125,7 @@ struct dpaa2_eth_swa { union { struct { struct sk_buff *skb; + int sgt_size; } single; struct { struct sk_buff *skb; @@ -282,7 +283,6 @@ struct dpaa2_eth_drv_stats { __u64 tx_conf_bytes; __u64 tx_sg_frames; __u64 tx_sg_bytes; - __u64 tx_reallocs; __u64 rx_sg_frames; __u64 rx_sg_bytes; /* Enqueues retried due to portal busy */ @@ -395,6 +395,12 @@ struct dpaa2_eth_cls_rule { u8 in_use; }; +#define DPAA2_ETH_SGT_CACHE_SIZE 256 +struct dpaa2_eth_sgt_cache { + void *buf[DPAA2_ETH_SGT_CACHE_SIZE]; + u16 count; +}; + /* Driver private data */ struct dpaa2_eth_priv { struct net_device *net_dev; @@ -409,6 +415,7 @@ struct dpaa2_eth_priv { u8 num_channels; struct dpaa2_eth_channel *channel[DPAA2_ETH_MAX_DPCONS]; + struct dpaa2_eth_sgt_cache __percpu *sgt_cache; struct dpni_attr dpni_attrs; u16 dpni_ver_major; |