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authorJakub Kicinski <kuba@kernel.org>2025-11-06 09:25:16 -0800
committerJakub Kicinski <kuba@kernel.org>2025-11-06 09:27:40 -0800
commit1ec9871fbb80ba7db84f868f6aa40d38bc43f0e0 (patch)
tree5b51296797c4e6d4cfa1707d3cacf2704efa2de4 /drivers/net/ethernet/pensando
parent13068e9d57264d0a86b8195817a01155ba33d230 (diff)
parentc2c2ccfd4ba72718266a56f3ecc34c989cb5b7a0 (diff)
downloadlinux-next-1ec9871fbb80ba7db84f868f6aa40d38bc43f0e0.tar.gz
linux-next-1ec9871fbb80ba7db84f868f6aa40d38bc43f0e0.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.18-rc5). Conflicts: drivers/net/wireless/ath/ath12k/mac.c 9222582ec524 ("Revert "wifi: ath12k: Fix missing station power save configuration"") 6917e268c433 ("wifi: ath12k: Defer vdev bring-up until CSA finalize to avoid stale beacon") https://lore.kernel.org/11cece9f7e36c12efd732baa5718239b1bf8c950.camel@sipsolutions.net Adjacent changes: drivers/net/ethernet/intel/Kconfig b1d16f7c0063 ("libie: depend on DEBUG_FS when building LIBIE_FWLOG") 93f53db9f9dc ("ice: switch to Page Pool") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/pensando')
-rw-r--r--drivers/net/ethernet/pensando/ionic/ionic_txrx.c34
1 files changed, 17 insertions, 17 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index d10b58ebf603..301ebee2fdc5 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -29,6 +29,10 @@ static void ionic_tx_clean(struct ionic_queue *q,
static inline void ionic_txq_post(struct ionic_queue *q, bool ring_dbell)
{
+ /* Ensure TX descriptor writes reach memory before NIC reads them.
+ * Prevents device from fetching stale descriptors.
+ */
+ dma_wmb();
ionic_q_post(q, ring_dbell);
}
@@ -1444,19 +1448,6 @@ static int ionic_tx_tso(struct net_device *netdev, struct ionic_queue *q,
bool encap;
int err;
- desc_info = &q->tx_info[q->head_idx];
-
- if (unlikely(ionic_tx_map_skb(q, skb, desc_info)))
- return -EIO;
-
- len = skb->len;
- mss = skb_shinfo(skb)->gso_size;
- outer_csum = (skb_shinfo(skb)->gso_type & (SKB_GSO_GRE |
- SKB_GSO_GRE_CSUM |
- SKB_GSO_IPXIP4 |
- SKB_GSO_IPXIP6 |
- SKB_GSO_UDP_TUNNEL |
- SKB_GSO_UDP_TUNNEL_CSUM));
has_vlan = !!skb_vlan_tag_present(skb);
vlan_tci = skb_vlan_tag_get(skb);
encap = skb->encapsulation;
@@ -1470,12 +1461,21 @@ static int ionic_tx_tso(struct net_device *netdev, struct ionic_queue *q,
err = ionic_tx_tcp_inner_pseudo_csum(skb);
else
err = ionic_tx_tcp_pseudo_csum(skb);
- if (unlikely(err)) {
- /* clean up mapping from ionic_tx_map_skb */
- ionic_tx_desc_unmap_bufs(q, desc_info);
+ if (unlikely(err))
return err;
- }
+ desc_info = &q->tx_info[q->head_idx];
+ if (unlikely(ionic_tx_map_skb(q, skb, desc_info)))
+ return -EIO;
+
+ len = skb->len;
+ mss = skb_shinfo(skb)->gso_size;
+ outer_csum = (skb_shinfo(skb)->gso_type & (SKB_GSO_GRE |
+ SKB_GSO_GRE_CSUM |
+ SKB_GSO_IPXIP4 |
+ SKB_GSO_IPXIP6 |
+ SKB_GSO_UDP_TUNNEL |
+ SKB_GSO_UDP_TUNNEL_CSUM));
if (encap)
hdrlen = skb_inner_tcp_all_headers(skb);
else