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path: root/drivers/s390/net/qeth_l3_main.c
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Diffstat (limited to 'drivers/s390/net/qeth_l3_main.c')
-rw-r--r--drivers/s390/net/qeth_l3_main.c85
1 files changed, 72 insertions, 13 deletions
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 0ba3817cb6a..54872406864 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -1,7 +1,7 @@
/*
* drivers/s390/net/qeth_l3_main.c
*
- * Copyright IBM Corp. 2007
+ * Copyright IBM Corp. 2007, 2009
* Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
* Frank Pavlic <fpavlic@de.ibm.com>,
* Thomas Spatzier <tspat@de.ibm.com>,
@@ -1920,16 +1920,22 @@ static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card,
hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
}
- skb->ip_summed = card->options.checksum_type;
- if (card->options.checksum_type == HW_CHECKSUMMING) {
+ switch (card->options.checksum_type) {
+ case SW_CHECKSUMMING:
+ skb->ip_summed = CHECKSUM_NONE;
+ break;
+ case NO_CHECKSUMMING:
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ break;
+ case HW_CHECKSUMMING:
if ((hdr->hdr.l3.ext_flags &
- (QETH_HDR_EXT_CSUM_HDR_REQ |
- QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
- (QETH_HDR_EXT_CSUM_HDR_REQ |
- QETH_HDR_EXT_CSUM_TRANSP_REQ))
+ (QETH_HDR_EXT_CSUM_HDR_REQ |
+ QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
+ (QETH_HDR_EXT_CSUM_HDR_REQ |
+ QETH_HDR_EXT_CSUM_TRANSP_REQ))
skb->ip_summed = CHECKSUM_UNNECESSARY;
else
- skb->ip_summed = SW_CHECKSUMMING;
+ skb->ip_summed = CHECKSUM_NONE;
}
return vlan_id;
@@ -2543,9 +2549,9 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
/* IPv4 */
hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
memset(hdr->hdr.l3.dest_addr, 0, 12);
- if ((skb->dst) && (skb->dst->neighbour)) {
+ if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
*((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
- *((u32 *) skb->dst->neighbour->primary_key);
+ *((u32 *) skb_dst(skb)->neighbour->primary_key);
} else {
/* fill in destination address used in ip header */
*((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
@@ -2556,9 +2562,9 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
if (card->info.type == QETH_CARD_TYPE_IQD)
hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
- if ((skb->dst) && (skb->dst->neighbour)) {
+ if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
memcpy(hdr->hdr.l3.dest_addr,
- skb->dst->neighbour->primary_key, 16);
+ skb_dst(skb)->neighbour->primary_key, 16);
} else {
/* fill in destination address used in ip header */
memcpy(hdr->hdr.l3.dest_addr,
@@ -3006,6 +3012,7 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
card->dev->features |= NETIF_F_HW_VLAN_TX |
NETIF_F_HW_VLAN_RX |
NETIF_F_HW_VLAN_FILTER;
+ card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
SET_NETDEV_DEV(card->dev, &card->gdev->dev);
return register_netdev(card->dev);
@@ -3070,6 +3077,7 @@ static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
{
struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
+ qeth_set_allowed_threads(card, 0, 1);
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
if (cgdev->state == CCWGROUP_ONLINE) {
@@ -3141,8 +3149,9 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
dev_warn(&card->gdev->dev,
"The LAN is offline\n");
card->lan_online = 0;
+ return 0;
}
- return rc;
+ goto out_remove;
} else
card->lan_online = 1;
qeth_set_large_send(card, card->options.large_send);
@@ -3274,12 +3283,62 @@ static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
qeth_clear_qdio_buffers(card);
}
+static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
+{
+ struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+
+ if (card->dev)
+ netif_device_detach(card->dev);
+ qeth_set_allowed_threads(card, 0, 1);
+ wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
+ if (gdev->state == CCWGROUP_OFFLINE)
+ return 0;
+ if (card->state == CARD_STATE_UP) {
+ card->use_hard_stop = 1;
+ __qeth_l3_set_offline(card->gdev, 1);
+ } else
+ __qeth_l3_set_offline(card->gdev, 0);
+ return 0;
+}
+
+static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
+{
+ struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+ int rc = 0;
+
+ if (gdev->state == CCWGROUP_OFFLINE)
+ goto out;
+
+ if (card->state == CARD_STATE_RECOVER) {
+ rc = __qeth_l3_set_online(card->gdev, 1);
+ if (rc) {
+ if (card->dev) {
+ rtnl_lock();
+ dev_close(card->dev);
+ rtnl_unlock();
+ }
+ }
+ } else
+ rc = __qeth_l3_set_online(card->gdev, 0);
+out:
+ qeth_set_allowed_threads(card, 0xffffffff, 0);
+ if (card->dev)
+ netif_device_attach(card->dev);
+ if (rc)
+ dev_warn(&card->gdev->dev, "The qeth device driver "
+ "failed to recover an error on the device\n");
+ return rc;
+}
+
struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
.probe = qeth_l3_probe_device,
.remove = qeth_l3_remove_device,
.set_online = qeth_l3_set_online,
.set_offline = qeth_l3_set_offline,
.shutdown = qeth_l3_shutdown,
+ .freeze = qeth_l3_pm_suspend,
+ .thaw = qeth_l3_pm_resume,
+ .restore = qeth_l3_pm_resume,
};
EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);