1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -2064,7 +2064,7 @@ static int gfar_start_xmit(struct sk_buf
int i, rq = 0, do_tstamp = 0;
u32 bufaddr;
unsigned long flags;
- unsigned int nr_frags, nr_txbds, length, fcb_length = GMAC_FCB_LEN;
+ unsigned int nr_frags, nr_txbds, bytes_sent, fcb_length = GMAC_FCB_LEN;
/* TOE=1 frames larger than 2500 bytes may see excess delays
* before start of transmission.
@@ -2130,7 +2130,10 @@ static int gfar_start_xmit(struct sk_buf
}
/* Update transmit stats */
- tx_queue->stats.tx_bytes += skb->len;
+ bytes_sent = skb->len;
+ tx_queue->stats.tx_bytes += bytes_sent;
+ /* keep Tx bytes on wire for BQL accounting */
+ GFAR_CB(skb)->bytes_sent = bytes_sent;
tx_queue->stats.tx_packets++;
txbdp = txbdp_start = tx_queue->cur_tx;
@@ -2150,12 +2153,13 @@ static int gfar_start_xmit(struct sk_buf
} else {
/* Place the fragment addresses and lengths into the TxBDs */
for (i = 0; i < nr_frags; i++) {
+ unsigned int frag_len;
/* Point at the next BD, wrapping as needed */
txbdp = next_txbd(txbdp, base, tx_queue->tx_ring_size);
- length = skb_shinfo(skb)->frags[i].size;
+ frag_len = skb_shinfo(skb)->frags[i].size;
- lstatus = txbdp->lstatus | length |
+ lstatus = txbdp->lstatus | frag_len |
BD_LFLAG(TXBD_READY);
/* Handle the last BD specially */
@@ -2165,7 +2169,7 @@ static int gfar_start_xmit(struct sk_buf
bufaddr = skb_frag_dma_map(priv->dev,
&skb_shinfo(skb)->frags[i],
0,
- length,
+ frag_len,
DMA_TO_DEVICE);
/* set the TxBD length and buffer pointer */
@@ -2231,7 +2235,7 @@ static int gfar_start_xmit(struct sk_buf
lstatus |= BD_LFLAG(TXBD_CRC | TXBD_READY) | skb_headlen(skb);
}
- netdev_tx_sent_queue(txq, skb->len);
+ netdev_tx_sent_queue(txq, bytes_sent);
/* We can work in parallel with gfar_clean_tx_ring(), except
* when modifying num_txbdfree. Note that we didn't grab the lock
@@ -2551,7 +2555,7 @@ static void gfar_clean_tx_ring(struct gf
bdp = next_txbd(bdp, base, tx_ring_size);
}
- bytes_sent += skb->len;
+ bytes_sent += GFAR_CB(skb)->bytes_sent;
dev_kfree_skb_any(skb);
--- a/drivers/net/ethernet/freescale/gianfar.h
+++ b/drivers/net/ethernet/freescale/gianfar.h
@@ -571,7 +571,7 @@ struct rxfcb {
};
struct gianfar_skb_cb {
- int alignamount;
+ unsigned int bytes_sent; /* bytes-on-wire (i.e. no FCB) */
};
#define GFAR_CB(skb) ((struct gianfar_skb_cb *)((skb)->cb))
|
