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authorMark Brown <broonie@linaro.org>2014-02-10 17:37:43 +0000
committerMark Brown <broonie@linaro.org>2014-02-10 17:37:43 +0000
commit4b9c8ddadce3ec70fa5d93875adeda861b21c84e (patch)
tree6ed53e819e5c763f751ff968a650b236d2d02545 /drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
parent51ad557e21b8713f3abc286c14bca4ed01b8e56d (diff)
parent1569265782ef26ed77ce45ebeb0676f11d4c114a (diff)
Merge tag 'v3.10.29' into linux-linaro-lsk
This is the 3.10.29 stable release
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c')
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 8c4babc0efb..70be100feeb 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -153,6 +153,7 @@ static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata,
struct sk_buff *skb = tx_buf->skb;
u16 bd_idx = TX_BD(tx_buf->first_bd), new_cons;
int nbd;
+ u16 split_bd_len = 0;
/* prefetch skb end pointer to speedup dev_kfree_skb() */
prefetch(&skb->end);
@@ -160,10 +161,7 @@ static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata,
DP(NETIF_MSG_TX_DONE, "fp[%d]: pkt_idx %d buff @(%p)->skb %p\n",
txdata->txq_index, idx, tx_buf, skb);
- /* unmap first bd */
tx_start_bd = &txdata->tx_desc_ring[bd_idx].start_bd;
- dma_unmap_single(&bp->pdev->dev, BD_UNMAP_ADDR(tx_start_bd),
- BD_UNMAP_LEN(tx_start_bd), DMA_TO_DEVICE);
nbd = le16_to_cpu(tx_start_bd->nbd) - 1;
@@ -182,12 +180,19 @@ static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata,
--nbd;
bd_idx = TX_BD(NEXT_TX_IDX(bd_idx));
- /* ...and the TSO split header bd since they have no mapping */
+ /* TSO headers+data bds share a common mapping. See bnx2x_tx_split() */
if (tx_buf->flags & BNX2X_TSO_SPLIT_BD) {
+ tx_data_bd = &txdata->tx_desc_ring[bd_idx].reg_bd;
+ split_bd_len = BD_UNMAP_LEN(tx_data_bd);
--nbd;
bd_idx = TX_BD(NEXT_TX_IDX(bd_idx));
}
+ /* unmap first bd */
+ dma_unmap_single(&bp->pdev->dev, BD_UNMAP_ADDR(tx_start_bd),
+ BD_UNMAP_LEN(tx_start_bd) + split_bd_len,
+ DMA_TO_DEVICE);
+
/* now free frags */
while (nbd > 0) {