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path: root/drivers/s390/net/qeth.h
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Diffstat (limited to 'drivers/s390/net/qeth.h')
-rw-r--r--drivers/s390/net/qeth.h73
1 files changed, 36 insertions, 37 deletions
diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h
index 619f4a0c716..821383d8cbe 100644
--- a/drivers/s390/net/qeth.h
+++ b/drivers/s390/net/qeth.h
@@ -176,7 +176,6 @@ extern struct ccwgroup_driver qeth_ccwgroup_driver;
/**
* card stuff
*/
-#ifdef CONFIG_QETH_PERF_STATS
struct qeth_perf_stats {
unsigned int bufs_rec;
unsigned int bufs_sent;
@@ -211,8 +210,10 @@ struct qeth_perf_stats {
unsigned int large_send_cnt;
unsigned int sg_skbs_sent;
unsigned int sg_frags_sent;
+ /* initial values when measuring starts */
+ unsigned long initial_rx_packets;
+ unsigned long initial_tx_packets;
};
-#endif /* CONFIG_QETH_PERF_STATS */
/* Routing stuff */
struct qeth_routing_info {
@@ -462,6 +463,7 @@ enum qeth_qdio_info_states {
QETH_QDIO_UNINITIALIZED,
QETH_QDIO_ALLOCATED,
QETH_QDIO_ESTABLISHED,
+ QETH_QDIO_CLEANING
};
struct qeth_buffer_pool_entry {
@@ -536,7 +538,7 @@ struct qeth_qdio_out_q {
} __attribute__ ((aligned(256)));
struct qeth_qdio_info {
- volatile enum qeth_qdio_info_states state;
+ atomic_t state;
/* input */
struct qeth_qdio_q *in_q;
struct qeth_qdio_buffer_pool in_buf_pool;
@@ -767,6 +769,7 @@ struct qeth_card_options {
int fake_ll;
int layer2;
enum qeth_large_send_types large_send;
+ int performance_stats;
};
/*
@@ -819,9 +822,7 @@ struct qeth_card {
struct list_head cmd_waiter_list;
/* QDIO buffer handling */
struct qeth_qdio_info qdio;
-#ifdef CONFIG_QETH_PERF_STATS
struct qeth_perf_stats perf_stats;
-#endif /* CONFIG_QETH_PERF_STATS */
int use_hard_stop;
int (*orig_hard_header)(struct sk_buff *,struct net_device *,
unsigned short,void *,void *,unsigned);
@@ -859,23 +860,18 @@ qeth_get_ipa_adp_type(enum qeth_link_types link_type)
}
}
-static inline int
-qeth_realloc_headroom(struct qeth_card *card, struct sk_buff **skb, int size)
+static inline struct sk_buff *
+qeth_realloc_headroom(struct qeth_card *card, struct sk_buff *skb, int size)
{
- struct sk_buff *new_skb = NULL;
-
- if (skb_headroom(*skb) < size){
- new_skb = skb_realloc_headroom(*skb, size);
- if (!new_skb) {
- PRINT_ERR("qeth_prepare_skb: could "
- "not realloc headroom for qeth_hdr "
- "on interface %s", QETH_CARD_IFNAME(card));
- return -ENOMEM;
- }
- kfree_skb(*skb);
- *skb = new_skb;
- }
- return 0;
+ struct sk_buff *new_skb = skb;
+
+ if (skb_headroom(skb) >= size)
+ return skb;
+ new_skb = skb_realloc_headroom(skb, size);
+ if (!new_skb)
+ PRINT_ERR("Could not realloc headroom for qeth_hdr "
+ "on interface %s", QETH_CARD_IFNAME(card));
+ return new_skb;
}
static inline struct sk_buff *
@@ -885,16 +881,15 @@ qeth_pskb_unshare(struct sk_buff *skb, int pri)
if (!skb_cloned(skb))
return skb;
nskb = skb_copy(skb, pri);
- kfree_skb(skb); /* free our shared copy */
return nskb;
}
static inline void *
-qeth_push_skb(struct qeth_card *card, struct sk_buff **skb, int size)
+qeth_push_skb(struct qeth_card *card, struct sk_buff *skb, int size)
{
void *hdr;
- hdr = (void *) skb_push(*skb, size);
+ hdr = (void *) skb_push(skb, size);
/*
* sanity check, the Linux memory allocation scheme should
* never present us cases like this one (the qdio header size plus
@@ -903,8 +898,7 @@ qeth_push_skb(struct qeth_card *card, struct sk_buff **skb, int size)
if ((((unsigned long) hdr) & (~(PAGE_SIZE - 1))) !=
(((unsigned long) hdr + size +
QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) {
- PRINT_ERR("qeth_prepare_skb: misaligned "
- "packet on interface %s. Discarded.",
+ PRINT_ERR("Misaligned packet on interface %s. Discarded.",
QETH_CARD_IFNAME(card));
return NULL;
}
@@ -1056,13 +1050,11 @@ qeth_get_arphdr_type(int cardtype, int linktype)
}
}
-#ifdef CONFIG_QETH_PERF_STATS
static inline int
qeth_get_micros(void)
{
return (int) (get_clock() >> 12);
}
-#endif
static inline int
qeth_get_qdio_q_format(struct qeth_card *card)
@@ -1096,10 +1088,11 @@ qeth_string_to_ipaddr4(const char *buf, __u8 *addr)
{
int count = 0, rc = 0;
int in[4];
+ char c;
- rc = sscanf(buf, "%d.%d.%d.%d%n",
- &in[0], &in[1], &in[2], &in[3], &count);
- if (rc != 4 || count<=0)
+ rc = sscanf(buf, "%u.%u.%u.%u%c",
+ &in[0], &in[1], &in[2], &in[3], &c);
+ if (rc != 4 && (rc != 5 || c != '\n'))
return -EINVAL;
for (count = 0; count < 4; count++) {
if (in[count] > 255)
@@ -1123,24 +1116,28 @@ qeth_ipaddr6_to_string(const __u8 *addr, char *buf)
static inline int
qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
{
- char *end, *start;
+ const char *end, *end_tmp, *start;
__u16 *in;
char num[5];
int num2, cnt, out, found, save_cnt;
unsigned short in_tmp[8] = {0, };
cnt = out = found = save_cnt = num2 = 0;
- end = start = (char *) buf;
+ end = start = buf;
in = (__u16 *) addr;
memset(in, 0, 16);
- while (end) {
- end = strchr(end,':');
+ while (*end) {
+ end = strchr(start,':');
if (end == NULL) {
- end = (char *)buf + (strlen(buf));
- out = 1;
+ end = buf + strlen(buf);
+ if ((end_tmp = strchr(start, '\n')) != NULL)
+ end = end_tmp;
+ out = 1;
}
if ((end - start)) {
memset(num, 0, 5);
+ if ((end - start) > 4)
+ return -EINVAL;
memcpy(num, start, end - start);
if (!qeth_isxdigit(num))
return -EINVAL;
@@ -1158,6 +1155,8 @@ qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
}
start = ++end;
}
+ if (cnt + save_cnt > 8)
+ return -EINVAL;
cnt = 7;
while (save_cnt)
in[cnt--] = in_tmp[--save_cnt];