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authorPavan Chebbi <pavan.chebbi@broadcom.com>2024-06-18 14:53:13 -0700
committerJakub Kicinski <kuba@kernel.org>2024-06-20 06:46:15 -0700
commit1e7962114c10957fe4d10a15eb714578a394e90b (patch)
treecc661dc71a2e522333f4f6b466264f248d33c997
parentb7bfcb4c7ce44fd0070ce8bccbc91c56341f05c1 (diff)
bnxt_en: Restore PTP tx_avail count in case of skb_pad() error
The current code only restores PTP tx_avail count when we get DMA mapping errors. Fix it so that the PTP tx_avail count will be restored for both DMA mapping errors and skb_pad() errors. Otherwise PTP TX timestamp will not be available after a PTP packet hits the skb_pad() error. Fixes: 83bb623c968e ("bnxt_en: Transmit and retrieve packet timestamps") Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20240618215313.29631-4-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 89d29d6d7517..a6d69a45fa01 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -732,9 +732,6 @@ tx_done:
return NETDEV_TX_OK;
tx_dma_error:
- if (BNXT_TX_PTP_IS_SET(lflags))
- atomic_inc(&bp->ptp_cfg->tx_avail);
-
last_frag = i;
/* start back at beginning and unmap skb */
@@ -756,6 +753,8 @@ tx_dma_error:
tx_free:
dev_kfree_skb_any(skb);
tx_kick_pending:
+ if (BNXT_TX_PTP_IS_SET(lflags))
+ atomic_inc(&bp->ptp_cfg->tx_avail);
if (txr->kick_pending)
bnxt_txr_db_kick(bp, txr, txr->tx_prod);
txr->tx_buf_ring[txr->tx_prod].skb = NULL;