diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2025-02-13 18:34:20 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-02-15 00:35:38 +0300 |
| commit | c6287e1a858e336cc202b484c6138a0fe252c6b3 (patch) | |
| tree | 8eb95c3fde475b33fd5dcbb4b3ba873ca99bd85b | |
| parent | 4671bb1a6b2bfa3ca71b7063748d9f7d65fd0f7d (diff) | |
| download | linux-c6287e1a858e336cc202b484c6138a0fe252c6b3.tar.xz | |
net: airoha: Fix TSO support for header cloned skbs
For GSO packets, skb_cow_head() will reallocate the skb for TSO header
cloned skbs in airoha_dev_xmit(). For this reason, sinfo pointer can be
no more valid. Fix the issue relying on skb_shinfo() macro directly in
airoha_dev_xmit().
The problem exists since
commit 23020f049327 ("net: airoha: Introduce ethernet support for EN7581 SoC")
but it is not a user visible, since we can't currently enable TSO
for DSA user ports since we are missing to initialize net_device
vlan_features field.
Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250213-airoha-en7581-flowtable-offload-v4-1-b69ca16d74db@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/mediatek/airoha_eth.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/ethernet/mediatek/airoha_eth.c b/drivers/net/ethernet/mediatek/airoha_eth.c index 09f448f29124..aa5f220ddbcf 100644 --- a/drivers/net/ethernet/mediatek/airoha_eth.c +++ b/drivers/net/ethernet/mediatek/airoha_eth.c @@ -2556,11 +2556,10 @@ static u16 airoha_dev_select_queue(struct net_device *dev, struct sk_buff *skb, static netdev_tx_t airoha_dev_xmit(struct sk_buff *skb, struct net_device *dev) { - struct skb_shared_info *sinfo = skb_shinfo(skb); struct airoha_gdm_port *port = netdev_priv(dev); + u32 nr_frags = 1 + skb_shinfo(skb)->nr_frags; u32 msg0, msg1, len = skb_headlen(skb); struct airoha_qdma *qdma = port->qdma; - u32 nr_frags = 1 + sinfo->nr_frags; struct netdev_queue *txq; struct airoha_queue *q; void *data = skb->data; @@ -2583,8 +2582,9 @@ static netdev_tx_t airoha_dev_xmit(struct sk_buff *skb, if (skb_cow_head(skb, 0)) goto error; - if (sinfo->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { - __be16 csum = cpu_to_be16(sinfo->gso_size); + if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | + SKB_GSO_TCPV6)) { + __be16 csum = cpu_to_be16(skb_shinfo(skb)->gso_size); tcp_hdr(skb)->check = (__force __sum16)csum; msg0 |= FIELD_PREP(QDMA_ETH_TXMSG_TSO_MASK, 1); @@ -2613,7 +2613,7 @@ static netdev_tx_t airoha_dev_xmit(struct sk_buff *skb, for (i = 0; i < nr_frags; i++) { struct airoha_qdma_desc *desc = &q->desc[index]; struct airoha_queue_entry *e = &q->entry[index]; - skb_frag_t *frag = &sinfo->frags[i]; + skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; dma_addr_t addr; u32 val; |