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s390/qeth: convert layer attribute to enum 

While the raw values are fixed due to their use in a sysfs attribute,
we can still use the proper QETH_DISCIPLINE_* enum within the driver.

Also move the initialization into qeth_set_initial_options(), along with
all other user-configurable fields.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Wiedmann 2018-09-26 18:29:02 +02:00 committed by David S. Miller
parent 4b1bd69769
commit 4fda335476
5 changed files with 25 additions and 26 deletions
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17
drivers/s390/net/qeth_core.h
View File

@ -671,6 +671,12 @@ struct qeth_card_info {
__u32 hwtrap;
};
enum qeth_discipline_id {
QETH_DISCIPLINE_UNDETERMINED = -1,
QETH_DISCIPLINE_LAYER3 = 0,
QETH_DISCIPLINE_LAYER2 = 1,
};
struct qeth_card_options {
struct qeth_routing_info route4;
struct qeth_ipa_info ipa4;
@ -680,7 +686,7 @@ struct qeth_card_options {
struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
struct qeth_vnicc_info vnicc; /* VNICC options */
int fake_broadcast;
int layer2;
enum qeth_discipline_id layer;
int performance_stats;
int rx_sg_cb;
enum qeth_ipa_isolation_modes isolation;
@ -690,6 +696,9 @@ struct qeth_card_options {
char hsuid[9];
};
#define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
#define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
/*
* thread bits for qeth_card thread masks
*/
@ -702,12 +711,6 @@ struct qeth_osn_info {
int (*data_cb)(struct sk_buff *skb);
};
enum qeth_discipline_id {
QETH_DISCIPLINE_UNDETERMINED = -1,
QETH_DISCIPLINE_LAYER3 = 0,
QETH_DISCIPLINE_LAYER2 = 1,
};
struct qeth_discipline {
const struct device_type *devtype;
int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done);

22
drivers/s390/net/qeth_core_main.c
View File

@ -1429,6 +1429,7 @@ static void qeth_set_initial_options(struct qeth_card *card)
card->options.rx_sg_cb = QETH_RX_SG_CB;
card->options.isolation = ISOLATION_MODE_NONE;
card->options.cq = QETH_CQ_DISABLED;
card->options.layer = QETH_DISCIPLINE_UNDETERMINED;
}
static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
@ -1522,7 +1523,6 @@ static struct qeth_card *qeth_alloc_card(struct ccwgroup_device *gdev)
goto out_channel;
if (qeth_setup_channel(&card->data, false))
goto out_data;
card->options.layer2 = -1;
card->qeth_service_level.seq_print = qeth_core_sl_print;
register_service_level(&card->qeth_service_level);
return card;
@ -2291,7 +2291,7 @@ static int qeth_update_max_mtu(struct qeth_card *card, unsigned int max_mtu)
if (dev->mtu)
new_mtu = dev->mtu;
/* default MTUs for first setup: */
else if (card->options.layer2)
else if (IS_LAYER2(card))
new_mtu = ETH_DATA_LEN;
else
new_mtu = ETH_DATA_LEN - 8; /* allow for LLC + SNAP */
@ -2358,7 +2358,7 @@ static u8 qeth_mpc_select_prot_type(struct qeth_card *card)
{
if (IS_OSN(card))
return QETH_PROT_OSN2;
return (card->options.layer2 == 1) ? QETH_PROT_LAYER2 : QETH_PROT_TCPIP;
return IS_LAYER2(card) ? QETH_PROT_LAYER2 : QETH_PROT_TCPIP;
}
static int qeth_ulp_enable(struct qeth_card *card)
@ -2896,10 +2896,7 @@ static void qeth_fill_ipacmd_header(struct qeth_card *card,
/* cmd->hdr.seqno is set by qeth_send_control_data() */
cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
cmd->hdr.rel_adapter_no = (u8) card->dev->dev_port;
if (card->options.layer2)
cmd->hdr.prim_version_no = 2;
else
cmd->hdr.prim_version_no = 1;
cmd->hdr.prim_version_no = IS_LAYER2(card) ? 2 : 1;
cmd->hdr.param_count = 1;
cmd->hdr.prot_version = prot;
}
@ -4278,8 +4275,7 @@ static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
if (qeth_setadpparms_inspect_rc(cmd))
return 0;
if (!card->options.layer2 ||
!(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
if (IS_LAYER3(card) || !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
ether_addr_copy(card->dev->dev_addr,
cmd->data.setadapterparms.data.change_addr.addr);
card->info.mac_bits |= QETH_LAYER2_MAC_READ;
@ -4633,9 +4629,9 @@ static int qeth_snmp_command(struct qeth_card *card, char __user *udata)
return -EOPNOTSUPP;
if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
(!card->options.layer2)) {
IS_LAYER3(card))
return -EOPNOTSUPP;
}
/* skip 4 bytes (data_len struct member) to get req_len */
if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
return -EFAULT;
@ -5623,7 +5619,7 @@ int qeth_core_load_discipline(struct qeth_card *card,
void qeth_core_free_discipline(struct qeth_card *card)
{
if (card->options.layer2)
if (IS_LAYER2(card))
symbol_put(qeth_l2_discipline);
else
symbol_put(qeth_l3_discipline);
@ -6146,7 +6142,7 @@ void qeth_core_get_drvinfo(struct net_device *dev,
{
struct qeth_card *card = dev->ml_priv;
strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3",
strlcpy(info->driver, IS_LAYER2(card) ? "qeth_l2" : "qeth_l3",
sizeof(info->driver));
strlcpy(info->version, "1.0", sizeof(info->version));
strlcpy(info->fw_version, card->info.mcl_level,

8
drivers/s390/net/qeth_core_sys.c
View File

@ -228,7 +228,7 @@ static ssize_t qeth_dev_prioqing_store(struct device *dev,
card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_TOS;
card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
} else if (sysfs_streq(buf, "prio_queueing_vlan")) {
if (!card->options.layer2) {
if (IS_LAYER3(card)) {
rc = -ENOTSUPP;
goto out;
}
@ -379,7 +379,7 @@ static ssize_t qeth_dev_layer2_show(struct device *dev,
if (!card)
return -EINVAL;
return sprintf(buf, "%i\n", card->options.layer2);
return sprintf(buf, "%i\n", card->options.layer);
}
static ssize_t qeth_dev_layer2_store(struct device *dev,
@ -413,7 +413,7 @@ static ssize_t qeth_dev_layer2_store(struct device *dev,
goto out;
}
if (card->options.layer2 == newdis)
if (card->options.layer == newdis)
goto out;
if (card->info.layer_enforced) {
/* fixed layer, can't switch */
@ -432,7 +432,7 @@ static ssize_t qeth_dev_layer2_store(struct device *dev,
card->discipline->remove(card->gdev);
qeth_core_free_discipline(card);
card->options.layer2 = -1;
card->options.layer = QETH_DISCIPLINE_UNDETERMINED;
free_netdev(card->dev);
card->dev = ndev;

2
drivers/s390/net/qeth_l2_main.c
View File

@ -806,7 +806,7 @@ static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
}
INIT_LIST_HEAD(&card->vid_list);
hash_init(card->mac_htable);
card->options.layer2 = 1;
card->options.layer = QETH_DISCIPLINE_LAYER2;
card->info.hwtrap = 0;
qeth_l2_vnicc_set_defaults(card);
return 0;

2
drivers/s390/net/qeth_l3_main.c
View File

@ -2489,7 +2489,7 @@ static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
}
hash_init(card->ip_htable);
hash_init(card->ip_mc_htable);
card->options.layer2 = 0;
card->options.layer = QETH_DISCIPLINE_LAYER3;
card->info.hwtrap = 0;
return 0;
}