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s390/qeth: translate SETVLAN/DELVLAN errors 

Properly return any error encountered during VLAN processing to the
the caller.
Resulting change in behaviour: if SETVLAN fails while registering a
new VLAN ID, the stack no longer creates the corresponding vlan device.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Wiedmann 2017-09-18 21:18:20 +02:00 коммит произвёл David S. Miller
Родитель ab25a5014e
Коммит 2aa4867198
2 изменённых файлов: 37 добавлений и 13 удалений
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1
drivers/s390/net/qeth_core_mpc.h
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@ -166,6 +166,7 @@ enum qeth_ipa_return_codes {
IPA_RC_L2_INVALID_VLAN_ID = 0x2015,
IPA_RC_L2_DUP_VLAN_ID = 0x2016,
IPA_RC_L2_VLAN_ID_NOT_FOUND = 0x2017,
IPA_RC_L2_VLAN_ID_NOT_ALLOWED = 0x2050,
IPA_RC_VNICC_VNICBP = 0x20B0,
IPA_RC_SBP_OSA_NOT_CONFIGURED = 0x2B0C,
IPA_RC_SBP_OSA_OS_MISMATCH = 0x2B10,

49
drivers/s390/net/qeth_l2_main.c
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@ -78,7 +78,7 @@ static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no)
return ndev;
}
static int qeth_setdel_makerc(struct qeth_card *card, int retcode)
static int qeth_setdelmac_makerc(struct qeth_card *card, int retcode)
{
int rc;
@ -128,8 +128,8 @@ static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
return qeth_setdel_makerc(card, qeth_send_ipa_cmd(card, iob,
NULL, NULL));
return qeth_setdelmac_makerc(card, qeth_send_ipa_cmd(card, iob,
NULL, NULL));
}
static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
@ -289,17 +289,40 @@ static void qeth_l2_fill_header(struct qeth_hdr *hdr, struct sk_buff *skb,
}
}
static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
struct qeth_reply *reply, unsigned long data)
static int qeth_setdelvlan_makerc(struct qeth_card *card, int retcode)
{
struct qeth_ipa_cmd *cmd;
if (retcode)
QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
switch (retcode) {
case IPA_RC_SUCCESS:
return 0;
case IPA_RC_L2_INVALID_VLAN_ID:
return -EINVAL;
case IPA_RC_L2_DUP_VLAN_ID:
return -EEXIST;
case IPA_RC_L2_VLAN_ID_NOT_FOUND:
return -ENOENT;
case IPA_RC_L2_VLAN_ID_NOT_ALLOWED:
return -EPERM;
case -ENOMEM:
return -ENOMEM;
default:
return -EIO;
}
}
static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
struct qeth_reply *reply,
unsigned long data)
{
struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
QETH_CARD_TEXT(card, 2, "L2sdvcb");
cmd = (struct qeth_ipa_cmd *) data;
if (cmd->hdr.return_code) {
QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
"Continuing\n", cmd->data.setdelvlan.vlan_id,
QETH_CARD_IFNAME(card), cmd->hdr.return_code);
QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x.\n",
cmd->data.setdelvlan.vlan_id,
QETH_CARD_IFNAME(card), cmd->hdr.return_code);
QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
}
@ -307,7 +330,7 @@ static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
}
static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
enum qeth_ipa_cmds ipacmd)
enum qeth_ipa_cmds ipacmd)
{
struct qeth_ipa_cmd *cmd;
struct qeth_cmd_buffer *iob;
@ -318,8 +341,8 @@ static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
return -ENOMEM;
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
cmd->data.setdelvlan.vlan_id = i;
return qeth_send_ipa_cmd(card, iob,
qeth_l2_send_setdelvlan_cb, NULL);
return qeth_setdelvlan_makerc(card, qeth_send_ipa_cmd(card, iob,
qeth_l2_send_setdelvlan_cb, NULL));
}
static void qeth_l2_process_vlans(struct qeth_card *card)