From: Klaus-Dieter Wacker <kdwacker@xxxxxxxxxx>
Clear separation of cast-type determination (send path) for layer-2
resp. layer-3. Allowing to have inline functions for qeth layer-
discipline.
Signed-off-by: Klaus-Dieter Wacker <kdwacker@xxxxxxxxxx>
---
drivers/s390/net/qeth_core.h | 1
drivers/s390/net/qeth_core_main.c | 49 --------------------------------------
drivers/s390/net/qeth_l2_main.c | 42 ++++++++------------------------
drivers/s390/net/qeth_l3_main.c | 47 +++++++++++++++++++++++++++++++++++-
4 files changed, 57 insertions(+), 82 deletions(-)
Index: git_net-next/drivers/s390/net/qeth_core.h
===================================================================
--- git_net-next.orig/drivers/s390/net/qeth_core.h
+++ git_net-next/drivers/s390/net/qeth_core.h
@@ -843,7 +843,6 @@ int qeth_default_setadapterparms_cb(stru
int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
void *reply_param);
-int qeth_get_cast_type(struct qeth_card *, struct sk_buff *);
int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int);
int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
Index: git_net-next/drivers/s390/net/qeth_core_main.c
===================================================================
--- git_net-next.orig/drivers/s390/net/qeth_core_main.c
+++ git_net-next/drivers/s390/net/qeth_core_main.c
@@ -2952,55 +2952,6 @@ void qeth_qdio_output_handler(struct ccw
}
EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
-int qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
-{
- int cast_type = RTN_UNSPEC;
-
- if (card->info.type == QETH_CARD_TYPE_OSN)
- return cast_type;
-
- if (skb_dst(skb) && skb_dst(skb)->neighbour) {
- cast_type = skb_dst(skb)->neighbour->type;
- if ((cast_type == RTN_BROADCAST) ||
- (cast_type == RTN_MULTICAST) ||
- (cast_type == RTN_ANYCAST))
- return cast_type;
- else
- return RTN_UNSPEC;
- }
- /* try something else */
- if (skb->protocol == ETH_P_IPV6)
- return (skb_network_header(skb)[24] == 0xff) ?
- RTN_MULTICAST : 0;
- else if (skb->protocol == ETH_P_IP)
- return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
- RTN_MULTICAST : 0;
- /* ... */
- if (!memcmp(skb->data, skb->dev->broadcast, 6))
- return RTN_BROADCAST;
- else {
- u16 hdr_mac;
-
- hdr_mac = *((u16 *)skb->data);
- /* tr multicast? */
- switch (card->info.link_type) {
- case QETH_LINK_TYPE_HSTR:
- case QETH_LINK_TYPE_LANE_TR:
- if ((hdr_mac == QETH_TR_MAC_NC) ||
- (hdr_mac == QETH_TR_MAC_C))
- return RTN_MULTICAST;
- break;
- /* eth or so multicast? */
- default:
- if ((hdr_mac == QETH_ETH_MAC_V4) ||
- (hdr_mac == QETH_ETH_MAC_V6))
- return RTN_MULTICAST;
- }
- }
- return cast_type;
-}
-EXPORT_SYMBOL_GPL(qeth_get_cast_type);
-
int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
int ipv, int cast_type)
{
Index: git_net-next/drivers/s390/net/qeth_l2_main.c
===================================================================
--- git_net-next.orig/drivers/s390/net/qeth_l2_main.c
+++ git_net-next/drivers/s390/net/qeth_l2_main.c
@@ -216,36 +216,16 @@ static void qeth_l2_del_all_mc(struct qe
spin_unlock_bh(&card->mclock);
}
-static void qeth_l2_get_packet_type(struct qeth_card *card,
- struct qeth_hdr *hdr, struct sk_buff *skb)
+static inline int qeth_l2_get_cast_type(struct qeth_card *card,
+ struct sk_buff *skb)
{
- __u16 hdr_mac;
-
- if (!memcmp(skb->data + QETH_HEADER_SIZE,
- skb->dev->broadcast, 6)) {
- /* broadcast? */
- hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
- return;
- }
- hdr_mac = *((__u16 *)skb->data);
- /* tr multicast? */
- switch (card->info.link_type) {
- case QETH_LINK_TYPE_HSTR:
- case QETH_LINK_TYPE_LANE_TR:
- if ((hdr_mac == QETH_TR_MAC_NC) ||
- (hdr_mac == QETH_TR_MAC_C))
- hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
- else
- hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
- break;
- /* eth or so multicast? */
- default:
- if ((hdr_mac == QETH_ETH_MAC_V4) ||
- (hdr_mac == QETH_ETH_MAC_V6))
- hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
- else
- hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
- }
+ if (card->info.type == QETH_CARD_TYPE_OSN)
+ return RTN_UNSPEC;
+ if (is_broadcast_ether_addr(skb->data))
+ return RTN_BROADCAST;
+ if (is_multicast_ether_addr(skb->data))
+ return RTN_MULTICAST;
+ return RTN_UNSPEC;
}
static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
@@ -262,7 +242,7 @@ static void qeth_l2_fill_header(struct q
else if (cast_type == RTN_BROADCAST)
hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
else
- qeth_l2_get_packet_type(card, hdr, skb);
+ hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
/* VSWITCH relies on the VLAN
@@ -672,7 +652,7 @@ static int qeth_l2_hard_start_xmit(struc
struct qeth_card *card = dev->ml_priv;
struct sk_buff *new_skb = skb;
int ipv = qeth_get_ip_version(skb);
- int cast_type = qeth_get_cast_type(card, skb);
+ int cast_type = qeth_l2_get_cast_type(card, skb);
struct qeth_qdio_out_q *queue = card->qdio.out_qs
[qeth_get_priority_queue(card, skb, ipv, cast_type)];
int tx_bytes = skb->len;
Index: git_net-next/drivers/s390/net/qeth_l3_main.c
===================================================================
--- git_net-next.orig/drivers/s390/net/qeth_l3_main.c
+++ git_net-next/drivers/s390/net/qeth_l3_main.c
@@ -2525,6 +2525,51 @@ static int qeth_l3_do_ioctl(struct net_d
return rc;
}
+int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
+{
+ int cast_type = RTN_UNSPEC;
+
+ if (skb_dst(skb) && skb_dst(skb)->neighbour) {
+ cast_type = skb_dst(skb)->neighbour->type;
+ if ((cast_type == RTN_BROADCAST) ||
+ (cast_type == RTN_MULTICAST) ||
+ (cast_type == RTN_ANYCAST))
+ return cast_type;
+ else
+ return RTN_UNSPEC;
+ }
+ /* try something else */
+ if (skb->protocol == ETH_P_IPV6)
+ return (skb_network_header(skb)[24] == 0xff) ?
+ RTN_MULTICAST : 0;
+ else if (skb->protocol == ETH_P_IP)
+ return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
+ RTN_MULTICAST : 0;
+ /* ... */
+ if (!memcmp(skb->data, skb->dev->broadcast, 6))
+ return RTN_BROADCAST;
+ else {
+ u16 hdr_mac;
+
+ hdr_mac = *((u16 *)skb->data);
+ /* tr multicast? */
+ switch (card->info.link_type) {
+ case QETH_LINK_TYPE_HSTR:
+ case QETH_LINK_TYPE_LANE_TR:
+ if ((hdr_mac == QETH_TR_MAC_NC) ||
+ (hdr_mac == QETH_TR_MAC_C))
+ return RTN_MULTICAST;
+ break;
+ /* eth or so multicast? */
+ default:
+ if ((hdr_mac == QETH_ETH_MAC_V4) ||
+ (hdr_mac == QETH_ETH_MAC_V6))
+ return RTN_MULTICAST;
+ }
+ }
+ return cast_type;
+}
+
static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
struct sk_buff *skb, int ipv, int cast_type)
{
@@ -2650,7 +2695,7 @@ static int qeth_l3_hard_start_xmit(struc
struct qeth_card *card = dev->ml_priv;
struct sk_buff *new_skb = NULL;
int ipv = qeth_get_ip_version(skb);
- int cast_type = qeth_get_cast_type(card, skb);
+ int cast_type = qeth_l3_get_cast_type(card, skb);
struct qeth_qdio_out_q *queue = card->qdio.out_qs
[qeth_get_priority_queue(card, skb, ipv, cast_type)];
int tx_bytes = skb->len;
--
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