lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

qeth: rework TSO functions

Browse Source 
The maximum TSO size OSA can handle is 15 * PAGE_SIZE. This
patch reduces gso_max_size to this value and adds some sanity
checks and statistics to the TSO implementation.
Since only layer 3 is able to do TSO move all TSO related functions
to the qeth_l3 module.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Frank Blaschka
2009-11-12 00:11:44 +00:00
committed by David S. Miller
parent aa90922479
commit c3b4a740db
7 changed files with 110 additions and 98 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
drivers/s390/net/qeth_core_main.c
View File

@@ -270,41 +270,6 @@ int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
return qeth_alloc_buffer_pool(card);
}
int qeth_set_large_send(struct qeth_card *card,
enum qeth_large_send_types type)
{
int rc = 0;
if (card->dev == NULL) {
card->options.large_send = type;
return 0;
}
if (card->state == CARD_STATE_UP)
netif_tx_disable(card->dev);
card->options.large_send = type;
switch (card->options.large_send) {
case QETH_LARGE_SEND_TSO:
if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
NETIF_F_HW_CSUM;
} else {
card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
NETIF_F_HW_CSUM);
card->options.large_send = QETH_LARGE_SEND_NO;
rc = -EOPNOTSUPP;
}
break;
default: /* includes QETH_LARGE_SEND_NO */
card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
NETIF_F_HW_CSUM);
break;
}
if (card->state == CARD_STATE_UP)
netif_wake_queue(card->dev);
return rc;
}
EXPORT_SYMBOL_GPL(qeth_set_large_send);
static int qeth_issue_next_read(struct qeth_card *card)
{
int rc;
@@ -4460,6 +4425,7 @@ static struct {
{"tx do_QDIO time"},
{"tx do_QDIO count"},
{"tx csum"},
{"tx lin"},
};
int qeth_core_get_sset_count(struct net_device *dev, int stringset)
@@ -4517,6 +4483,7 @@ void qeth_core_get_ethtool_stats(struct net_device *dev,
data[31] = card->perf_stats.outbound_do_qdio_time;
data[32] = card->perf_stats.outbound_do_qdio_cnt;
data[33] = card->perf_stats.tx_csum;
data[34] = card->perf_stats.tx_lin;
}
EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);