From 4fda33547676e270245431d59aa72f3e5bdc1d30 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Wed, 26 Sep 2018 18:29:02 +0200 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core.h | 17 ++++++++++------- drivers/s390/net/qeth_core_main.c | 22 +++++++++------------- drivers/s390/net/qeth_core_sys.c | 8 ++++---- drivers/s390/net/qeth_l2_main.c | 2 +- drivers/s390/net/qeth_l3_main.c | 2 +- 5 files changed, 25 insertions(+), 26 deletions(-) diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index 0dbe81f958f0..630a01b3212c 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -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); diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 89e09e7b8fff..4fd9bdc2d0ae 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -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, diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c index 25d0be25bcb3..fdb67af811f4 100644 --- a/drivers/s390/net/qeth_core_sys.c +++ b/drivers/s390/net/qeth_core_sys.c @@ -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; diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 12858ffa28cf..afa7a005b21e 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -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; diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 8930d2a9fcad..552bfad20f85 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -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; } -- 2.39.5