From c5e631a8d4e305a68465b7334efe9875be8b7033 Mon Sep 17 00:00:00 2001 From: Frank Blaschka Date: Thu, 12 May 2011 18:45:01 +0000 Subject: [PATCH] qeth: convert to hw_features part 2 Set rx csum default to hw checksumming again. Remove sysfs interface for rx csum (checksumming) and TSO (large_send). With the new hw_features it does not work to keep the old sysfs interface in parallel. Convert options.checksum_type to new hw_features. Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core.h | 1 - drivers/s390/net/qeth_core_main.c | 1 - drivers/s390/net/qeth_core_mpc.h | 8 --- drivers/s390/net/qeth_l2_main.c | 5 +- drivers/s390/net/qeth_l3.h | 2 - drivers/s390/net/qeth_l3_main.c | 104 ++++++++++++++--------------- drivers/s390/net/qeth_l3_sys.c | 106 ------------------------------ 7 files changed, 49 insertions(+), 178 deletions(-) diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index 8d6146a107d9..a2e67558a313 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -639,7 +639,6 @@ struct qeth_card_options { struct qeth_ipa_info adp; /*Adapter parameters*/ struct qeth_routing_info route6; struct qeth_ipa_info ipa6; - enum qeth_checksum_types checksum_type; int broadcast_mode; int macaddr_mode; int fake_broadcast; diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 85cc53117ea6..4dffdbe9a674 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -1039,7 +1039,6 @@ static void qeth_set_intial_options(struct qeth_card *card) { card->options.route4.type = NO_ROUTER; card->options.route6.type = NO_ROUTER; - card->options.checksum_type = QETH_CHECKSUM_DEFAULT; card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL; card->options.fake_broadcast = 0; diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h index 07d588867b57..d8988dca8129 100644 --- a/drivers/s390/net/qeth_core_mpc.h +++ b/drivers/s390/net/qeth_core_mpc.h @@ -80,14 +80,6 @@ enum qeth_tr_broadcast_modes { QETH_TR_BROADCAST_LOCAL = 1, }; -/* these values match CHECKSUM_* in include/linux/skbuff.h */ -enum qeth_checksum_types { - SW_CHECKSUMMING = 0, /* TODO: set to bit flag used in IPA Command */ - HW_CHECKSUMMING = 1, - NO_CHECKSUMMING = 2, -}; -#define QETH_CHECKSUM_DEFAULT SW_CHECKSUMMING - /* * Routing stuff */ diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 6fbaacb21943..8ba4c7e1ee3a 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -420,10 +420,7 @@ static int qeth_l2_process_inbound_buffer(struct qeth_card *card, case QETH_HEADER_TYPE_LAYER2: skb->pkt_type = PACKET_HOST; skb->protocol = eth_type_trans(skb, skb->dev); - if (card->options.checksum_type == NO_CHECKSUMMING) - skb->ip_summed = CHECKSUM_UNNECESSARY; - else - skb->ip_summed = CHECKSUM_NONE; + skb->ip_summed = CHECKSUM_NONE; if (skb->protocol == htons(ETH_P_802_2)) *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; len = skb->len; diff --git a/drivers/s390/net/qeth_l3.h b/drivers/s390/net/qeth_l3.h index e705b27ec7dc..14a43aeb0c2a 100644 --- a/drivers/s390/net/qeth_l3.h +++ b/drivers/s390/net/qeth_l3.h @@ -62,8 +62,6 @@ void qeth_l3_del_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *); int qeth_l3_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *); void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions, const u8 *); -int qeth_l3_set_large_send(struct qeth_card *, enum qeth_large_send_types); -int qeth_l3_set_rx_csum(struct qeth_card *, enum qeth_checksum_types); int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *); #endif /* __QETH_L3_H__ */ diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 1496661507ea..18484b586a3e 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1445,34 +1445,30 @@ static int qeth_l3_send_checksum_command(struct qeth_card *card) return 0; } -int qeth_l3_set_rx_csum(struct qeth_card *card, - enum qeth_checksum_types csum_type) +int qeth_l3_set_rx_csum(struct qeth_card *card, int on) { int rc = 0; - if (card->options.checksum_type == HW_CHECKSUMMING) { - if ((csum_type != HW_CHECKSUMMING) && - (card->state != CARD_STATE_DOWN)) { - rc = qeth_l3_send_simple_setassparms(card, - IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0); + if (on) { + if (card->state != CARD_STATE_DOWN) { + if (!qeth_is_supported(card, + IPA_INBOUND_CHECKSUM)) + return -EPERM; + rc = qeth_l3_send_checksum_command(card); if (rc) return -EIO; } card->dev->features |= NETIF_F_RXCSUM; } else { - if (csum_type == HW_CHECKSUMMING) { - if (card->state != CARD_STATE_DOWN) { - if (!qeth_is_supported(card, - IPA_INBOUND_CHECKSUM)) - return -EPERM; - rc = qeth_l3_send_checksum_command(card); - if (rc) - return -EIO; - } + if (card->state != CARD_STATE_DOWN) { + rc = qeth_l3_send_simple_setassparms(card, + IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0); + if (rc) + return -EIO; } card->dev->features &= ~NETIF_F_RXCSUM; } - card->options.checksum_type = csum_type; + return rc; } @@ -1482,32 +1478,34 @@ static int qeth_l3_start_ipa_checksum(struct qeth_card *card) QETH_CARD_TEXT(card, 3, "strtcsum"); - if (card->options.checksum_type == NO_CHECKSUMMING) { - dev_info(&card->gdev->dev, - "Using no checksumming on %s.\n", - QETH_CARD_IFNAME(card)); - return 0; - } - if (card->options.checksum_type == SW_CHECKSUMMING) { - dev_info(&card->gdev->dev, - "Using SW checksumming on %s.\n", - QETH_CARD_IFNAME(card)); - return 0; - } - if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) { - dev_info(&card->gdev->dev, + if (card->dev->features & NETIF_F_RXCSUM) { + /* hw may have changed during offline or recovery */ + if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) { + dev_info(&card->gdev->dev, "Inbound HW Checksumming not " "supported on %s,\ncontinuing " "using Inbound SW Checksumming\n", QETH_CARD_IFNAME(card)); - card->options.checksum_type = SW_CHECKSUMMING; - return 0; - } - rc = qeth_l3_send_checksum_command(card); - if (!rc) - dev_info(&card->gdev->dev, + goto update_feature; + } + + rc = qeth_l3_send_checksum_command(card); + if (!rc) + dev_info(&card->gdev->dev, "HW Checksumming (inbound) enabled\n"); + else + goto update_feature; + } else + dev_info(&card->gdev->dev, + "Using SW checksumming on %s.\n", + QETH_CARD_IFNAME(card)); + return 0; +update_feature: + rtnl_lock(); + card->dev->features &= ~NETIF_F_RXCSUM; + netdev_update_features(card->dev); + rtnl_unlock(); return rc; } @@ -2037,14 +2035,7 @@ static inline int qeth_l3_rebuild_skb(struct qeth_card *card, is_vlan = 1; } - switch (card->options.checksum_type) { - case SW_CHECKSUMMING: - skb->ip_summed = CHECKSUM_NONE; - break; - case NO_CHECKSUMMING: - skb->ip_summed = CHECKSUM_UNNECESSARY; - break; - case HW_CHECKSUMMING: + if (card->dev->features & NETIF_F_RXCSUM) { if ((hdr->hdr.l3.ext_flags & (QETH_HDR_EXT_CSUM_HDR_REQ | QETH_HDR_EXT_CSUM_TRANSP_REQ)) == @@ -2053,7 +2044,8 @@ static inline int qeth_l3_rebuild_skb(struct qeth_card *card, skb->ip_summed = CHECKSUM_UNNECESSARY; else skb->ip_summed = CHECKSUM_NONE; - } + } else + skb->ip_summed = CHECKSUM_NONE; return is_vlan; } @@ -3235,20 +3227,19 @@ static u32 qeth_l3_fix_features(struct net_device *dev, u32 features) static int qeth_l3_set_features(struct net_device *dev, u32 features) { - enum qeth_checksum_types csum_type; struct qeth_card *card = dev->ml_priv; u32 changed = dev->features ^ features; + int on; if (!(changed & NETIF_F_RXCSUM)) return 0; if (features & NETIF_F_RXCSUM) - csum_type = HW_CHECKSUMMING; + on = 1; else - csum_type = SW_CHECKSUMMING; + on = 0; - dev->features = features ^ NETIF_F_RXCSUM; - return qeth_l3_set_rx_csum(card, csum_type); + return qeth_l3_set_rx_csum(card, on); } static const struct ethtool_ops qeth_l3_ethtool_ops = { @@ -3342,6 +3333,12 @@ static int qeth_l3_setup_netdev(struct qeth_card *card) if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD)) card->dev->dev_id = card->info.unique_id & 0xffff; + if (!card->info.guestlan) { + card->dev->hw_features = NETIF_F_SG | + NETIF_F_RXCSUM | NETIF_F_IP_CSUM | + NETIF_F_TSO; + card->dev->features = NETIF_F_RXCSUM; + } } } else if (card->info.type == QETH_CARD_TYPE_IQD) { card->dev = alloc_netdev(0, "hsi%d", ether_setup); @@ -3357,8 +3354,6 @@ static int qeth_l3_setup_netdev(struct qeth_card *card) card->dev->watchdog_timeo = QETH_TX_TIMEOUT; card->dev->mtu = card->info.initial_mtu; SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops); - card->dev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM | - NETIF_F_IP_CSUM | NETIF_F_TSO; card->dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER; @@ -3382,9 +3377,6 @@ static int qeth_l3_probe_device(struct ccwgroup_device *gdev) card->discipline.output_handler = (qdio_handler_t *) qeth_qdio_output_handler; card->discipline.recover = qeth_l3_recover; - if ((card->info.type == QETH_CARD_TYPE_OSD) || - (card->info.type == QETH_CARD_TYPE_OSX)) - card->options.checksum_type = HW_CHECKSUMMING; return 0; } diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c index bf9f003e3a97..cd99210296e2 100644 --- a/drivers/s390/net/qeth_l3_sys.c +++ b/drivers/s390/net/qeth_l3_sys.c @@ -15,16 +15,6 @@ #define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \ struct device_attribute dev_attr_##_id = __ATTR(_name, _mode, _show, _store) -static const char *qeth_l3_get_checksum_str(struct qeth_card *card) -{ - if (card->options.checksum_type == SW_CHECKSUMMING) - return "sw"; - else if (card->options.checksum_type == HW_CHECKSUMMING) - return "hw"; - else - return "no"; -} - static ssize_t qeth_l3_dev_route_show(struct qeth_card *card, struct qeth_routing_info *route, char *buf) { @@ -295,51 +285,6 @@ static ssize_t qeth_l3_dev_canonical_macaddr_store(struct device *dev, static DEVICE_ATTR(canonical_macaddr, 0644, qeth_l3_dev_canonical_macaddr_show, qeth_l3_dev_canonical_macaddr_store); -static ssize_t qeth_l3_dev_checksum_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct qeth_card *card = dev_get_drvdata(dev); - - if (!card) - return -EINVAL; - - return sprintf(buf, "%s checksumming\n", - qeth_l3_get_checksum_str(card)); -} - -static ssize_t qeth_l3_dev_checksum_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - struct qeth_card *card = dev_get_drvdata(dev); - enum qeth_checksum_types csum_type; - char *tmp; - int rc = 0; - - if (!card) - return -EINVAL; - - mutex_lock(&card->conf_mutex); - tmp = strsep((char **) &buf, "\n"); - if (!strcmp(tmp, "sw_checksumming")) - csum_type = SW_CHECKSUMMING; - else if (!strcmp(tmp, "hw_checksumming")) - csum_type = HW_CHECKSUMMING; - else if (!strcmp(tmp, "no_checksumming")) - csum_type = NO_CHECKSUMMING; - else { - rc = -EINVAL; - goto out; - } - - rc = qeth_l3_set_rx_csum(card, csum_type); -out: - mutex_unlock(&card->conf_mutex); - return rc ? rc : count; -} - -static DEVICE_ATTR(checksumming, 0644, qeth_l3_dev_checksum_show, - qeth_l3_dev_checksum_store); - static ssize_t qeth_l3_dev_sniffer_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -402,64 +347,13 @@ static ssize_t qeth_l3_dev_sniffer_store(struct device *dev, static DEVICE_ATTR(sniffer, 0644, qeth_l3_dev_sniffer_show, qeth_l3_dev_sniffer_store); -static ssize_t qeth_l3_dev_large_send_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct qeth_card *card = dev_get_drvdata(dev); - - if (!card) - return -EINVAL; - - if (!(card->dev->features & NETIF_F_TSO)) - return sprintf(buf, "%s\n", "no"); - else - return sprintf(buf, "%s\n", "TSO"); -} - -static ssize_t qeth_l3_dev_large_send_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - struct qeth_card *card; - char *tmp; - int enable; - - if (!card) - return -EINVAL; - tmp = strsep((char **) &buf, "\n"); - if (!strcmp(tmp, "no")) - enable = 0; - else if (!strcmp(tmp, "TSO")) - enable = 1; - else - return -EINVAL; - - rtnl_lock(); - - card = dev_get_drvdata(dev); - - if (enable) - card->dev->wanted_features |= NETIF_F_TSO; - else - card->dev->wanted_features &= ~NETIF_F_TSO; - netdev_update_features(card->dev); - - rtnl_unlock(); - - return count; -} - -static DEVICE_ATTR(large_send, 0644, qeth_l3_dev_large_send_show, - qeth_l3_dev_large_send_store); - static struct attribute *qeth_l3_device_attrs[] = { &dev_attr_route4.attr, &dev_attr_route6.attr, &dev_attr_fake_broadcast.attr, &dev_attr_broadcast_mode.attr, &dev_attr_canonical_macaddr.attr, - &dev_attr_checksumming.attr, &dev_attr_sniffer.attr, - &dev_attr_large_send.attr, NULL, }; -- GitLab