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Merge branch 's390-next'

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Ursula Braun says:

====================
s390 network patches

here are some s390 related patches for net-next. Most important is
the skb_linearize af_iucv patch from Eugene solving traffic problems
in certain scenarios. The remaining patches are minor improvements.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2015-12-14 16:16:46 -05:00
commit e286213484
7 changed files with 40 additions and 49 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
MAINTAINERS
View File

@ -9125,7 +9125,7 @@ F: drivers/s390/block/dasd*
F: block/partitions/ibm.c
S390 NETWORK DRIVERS
M: Ursula Braun <ursula.braun@de.ibm.com>
M: Ursula Braun <ubraun@linux.vnet.ibm.com>
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
@ -9155,7 +9155,7 @@ S: Supported
F: drivers/s390/scsi/zfcp_*
S390 IUCV NETWORK LAYER
M: Ursula Braun <ursula.braun@de.ibm.com>
M: Ursula Braun <ubraun@linux.vnet.ibm.com>
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported

7
drivers/s390/net/ctcm_main.c
View File

@ -1677,11 +1677,8 @@ static int ctcm_shutdown_device(struct ccwgroup_device *cgdev)
ccw_device_set_offline(cgdev->cdev[1]);
ccw_device_set_offline(cgdev->cdev[0]);
if (priv->channel[CTCM_READ])
channel_remove(priv->channel[CTCM_READ]);
if (priv->channel[CTCM_WRITE])
channel_remove(priv->channel[CTCM_WRITE]);
channel_remove(priv->channel[CTCM_READ]);
channel_remove(priv->channel[CTCM_WRITE]);
priv->channel[CTCM_READ] = priv->channel[CTCM_WRITE] = NULL;
return 0;

4
drivers/s390/net/qeth_core.h
View File

@ -981,6 +981,10 @@ int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16,
int (*reply_cb)(struct qeth_card *,
struct qeth_reply *, unsigned long),
void *);
struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *,
enum qeth_ipa_funcs,
__u16, __u16,
enum qeth_prot_versions);
int qeth_start_ipa_tx_checksum(struct qeth_card *);
int qeth_set_rx_csum(struct qeth_card *, int);

11
drivers/s390/net/qeth_core_main.c
View File

@ -2684,8 +2684,6 @@ void qeth_print_status_message(struct qeth_card *card)
sprintf(card->info.mcl_level, "%02x%02x",
card->info.mcl_level[2],
card->info.mcl_level[3]);
card->info.mcl_level[QETH_MCL_LENGTH] = 0;
break;
}
/* fallthrough */
@ -5297,10 +5295,10 @@ static int qeth_setassparms_cb(struct qeth_card *card,
return 0;
}
static struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
enum qeth_ipa_funcs ipa_func,
__u16 cmd_code, __u16 len,
enum qeth_prot_versions prot)
struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
enum qeth_ipa_funcs ipa_func,
__u16 cmd_code, __u16 len,
enum qeth_prot_versions prot)
{
struct qeth_cmd_buffer *iob;
struct qeth_ipa_cmd *cmd;
@ -5319,6 +5317,7 @@ static struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
return iob;
}
EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd);
int qeth_send_setassparms(struct qeth_card *card,
struct qeth_cmd_buffer *iob, __u16 len, long data,

1
drivers/s390/net/qeth_l2_main.c
View File

@ -1126,6 +1126,7 @@ static int qeth_l2_setup_netdev(struct qeth_card *card)
qeth_l2_request_initial_mac(card);
SET_NETDEV_DEV(card->dev, &card->gdev->dev);
netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
netif_carrier_off(card->dev);
return register_netdev(card->dev);
}

40
drivers/s390/net/qeth_l3_main.c
View File

@ -1043,28 +1043,6 @@ static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
return 0;
}
static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
__u16 len, enum qeth_prot_versions prot)
{
struct qeth_cmd_buffer *iob;
struct qeth_ipa_cmd *cmd;
QETH_CARD_TEXT(card, 4, "getasscm");
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
if (iob) {
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
cmd->data.setassparms.hdr.assist_no = ipa_func;
cmd->data.setassparms.hdr.length = 8 + len;
cmd->data.setassparms.hdr.command_code = cmd_code;
cmd->data.setassparms.hdr.return_code = 0;
cmd->data.setassparms.hdr.seq_no = 0;
}
return iob;
}
#ifdef CONFIG_QETH_IPV6
static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
@ -1073,7 +1051,7 @@ static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
struct qeth_cmd_buffer *iob;
QETH_CARD_TEXT(card, 4, "simassp6");
iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
0, QETH_PROT_IPV6);
if (!iob)
return -ENOMEM;
@ -2344,10 +2322,11 @@ static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
IPA_CMD_ASS_ARP_QUERY_INFO,
sizeof(struct qeth_arp_query_data) - sizeof(char),
prot);
iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
IPA_CMD_ASS_ARP_QUERY_INFO,
sizeof(struct qeth_arp_query_data)
- sizeof(char),
prot);
if (!iob)
return -ENOMEM;
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
@ -2439,7 +2418,7 @@ static int qeth_l3_arp_add_entry(struct qeth_card *card,
return -EOPNOTSUPP;
}
iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
IPA_CMD_ASS_ARP_ADD_ENTRY,
sizeof(struct qeth_arp_cache_entry),
QETH_PROT_IPV4);
@ -2480,7 +2459,7 @@ static int qeth_l3_arp_remove_entry(struct qeth_card *card,
return -EOPNOTSUPP;
}
memcpy(buf, entry, 12);
iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
IPA_CMD_ASS_ARP_REMOVE_ENTRY,
12,
QETH_PROT_IPV4);
@ -2818,7 +2797,7 @@ static inline int qeth_l3_tso_elements(struct sk_buff *skb)
{
unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
tcp_hdr(skb)->doff * 4;
int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
int tcpd_len = skb_headlen(skb) - (tcpd - (unsigned long)skb->data);
int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
elements += qeth_get_elements_for_frags(skb);
@ -3220,6 +3199,7 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
SET_NETDEV_DEV(card->dev, &card->gdev->dev);
netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
netif_carrier_off(card->dev);
return register_netdev(card->dev);
}

22
net/iucv/af_iucv.c
View File

@ -1031,7 +1031,7 @@ static int iucv_sock_sendmsg(struct socket *sock, struct msghdr *msg,
struct sock *sk = sock->sk;
struct iucv_sock *iucv = iucv_sk(sk);
struct sk_buff *skb;
struct iucv_message txmsg;
struct iucv_message txmsg = {0};
struct cmsghdr *cmsg;
int cmsg_done;
long timeo;
@ -2084,11 +2084,7 @@ static int afiucv_hs_callback_rx(struct sock *sk, struct sk_buff *skb)
return NET_RX_SUCCESS;
}
/* write stuff from iucv_msg to skb cb */
if (skb->len < sizeof(struct af_iucv_trans_hdr)) {
kfree_skb(skb);
return NET_RX_SUCCESS;
}
/* write stuff from iucv_msg to skb cb */
skb_pull(skb, sizeof(struct af_iucv_trans_hdr));
skb_reset_transport_header(skb);
skb_reset_network_header(skb);
@ -2119,6 +2115,20 @@ static int afiucv_hs_rcv(struct sk_buff *skb, struct net_device *dev,
char nullstring[8];
int err = 0;
if (skb->len < (ETH_HLEN + sizeof(struct af_iucv_trans_hdr))) {
WARN_ONCE(1, "AF_IUCV too short skb, len=%d, min=%d",
(int)skb->len,
(int)(ETH_HLEN + sizeof(struct af_iucv_trans_hdr)));
kfree_skb(skb);
return NET_RX_SUCCESS;
}
if (skb_headlen(skb) < (ETH_HLEN + sizeof(struct af_iucv_trans_hdr)))
if (skb_linearize(skb)) {
WARN_ONCE(1, "AF_IUCV skb_linearize failed, len=%d",
(int)skb->len);
kfree_skb(skb);
return NET_RX_SUCCESS;
}
skb_pull(skb, ETH_HLEN);
trans_hdr = (struct af_iucv_trans_hdr *)skb->data;
EBCASC(trans_hdr->destAppName, sizeof(trans_hdr->destAppName));