From: Michał Mirosław Date: Tue, 19 Apr 2011 00:43:20 +0000 (+0000) Subject: net: s390: convert to hw_features X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6204b47ec4394f7e472885c8d05d9cda96d97a25;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git net: s390: convert to hw_features options.large_send was easy to get rid of. options.checksum_type has deeper roots so is left for later cleanup. Signed-off-by: Michał Mirosław Signed-off-by: David S. Miller --- diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index af3f7b095647..8d6146a107d9 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -407,12 +407,6 @@ struct qeth_qdio_q { int next_buf_to_init; } __attribute__ ((aligned(256))); -/* possible types of qeth large_send support */ -enum qeth_large_send_types { - QETH_LARGE_SEND_NO, - QETH_LARGE_SEND_TSO, -}; - struct qeth_qdio_out_buffer { struct qdio_buffer *buffer; atomic_t state; @@ -651,7 +645,6 @@ struct qeth_card_options { int fake_broadcast; int add_hhlen; int layer2; - enum qeth_large_send_types large_send; int performance_stats; int rx_sg_cb; enum qeth_ipa_isolation_modes isolation; diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 142e5f6ef4f3..1496661507ea 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -43,33 +43,6 @@ static int qeth_l3_deregister_addr_entry(struct qeth_card *, static int __qeth_l3_set_online(struct ccwgroup_device *, int); static int __qeth_l3_set_offline(struct ccwgroup_device *, int); -int qeth_l3_set_large_send(struct qeth_card *card, - enum qeth_large_send_types type) -{ - int rc = 0; - - card->options.large_send = type; - if (card->dev == NULL) - return 0; - - if (card->options.large_send == QETH_LARGE_SEND_TSO) { - if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) { - card->dev->features |= NETIF_F_TSO | NETIF_F_SG | - NETIF_F_IP_CSUM; - } else { - card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | - NETIF_F_IP_CSUM); - card->options.large_send = QETH_LARGE_SEND_NO; - rc = -EOPNOTSUPP; - } - } else { - card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | - NETIF_F_IP_CSUM); - card->options.large_send = QETH_LARGE_SEND_NO; - } - return rc; -} - static int qeth_l3_isxdigit(char *buf) { while (*buf) { @@ -1485,6 +1458,7 @@ int qeth_l3_set_rx_csum(struct qeth_card *card, if (rc) return -EIO; } + card->dev->features |= NETIF_F_RXCSUM; } else { if (csum_type == HW_CHECKSUMMING) { if (card->state != CARD_STATE_DOWN) { @@ -1496,6 +1470,7 @@ int qeth_l3_set_rx_csum(struct qeth_card *card, return -EIO; } } + card->dev->features &= ~NETIF_F_RXCSUM; } card->options.checksum_type = csum_type; return rc; @@ -1580,10 +1555,8 @@ static int qeth_l3_start_ipa_tso(struct qeth_card *card) dev_info(&card->gdev->dev, "Outbound TSO enabled\n"); } - if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)) { - card->options.large_send = QETH_LARGE_SEND_NO; - card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG); - } + if (rc) + card->dev->features &= ~NETIF_F_TSO; return rc; } @@ -3024,7 +2997,7 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) struct qeth_qdio_out_q *queue = card->qdio.out_qs [qeth_get_priority_queue(card, skb, ipv, cast_type)]; int tx_bytes = skb->len; - enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; + bool large_send; int data_offset = -1; int nr_frags; @@ -3046,8 +3019,7 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) card->perf_stats.outbound_start_time = qeth_get_micros(); } - if (skb_is_gso(skb)) - large_send = card->options.large_send; + large_send = skb_is_gso(skb); if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) && (skb_shinfo(skb)->nr_frags == 0)) { @@ -3096,7 +3068,7 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) /* fix hardware limitation: as long as we do not have sbal * chaining we can not send long frag lists */ - if (large_send == QETH_LARGE_SEND_TSO) { + if (large_send) { if (qeth_l3_tso_elements(new_skb) + 1 > 16) { if (skb_linearize(new_skb)) goto tx_drop; @@ -3105,8 +3077,7 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) } } - if ((large_send == QETH_LARGE_SEND_TSO) && - (cast_type == RTN_UNSPEC)) { + if (large_send && (cast_type == RTN_UNSPEC)) { hdr = (struct qeth_hdr *)skb_push(new_skb, sizeof(struct qeth_hdr_tso)); memset(hdr, 0, sizeof(struct qeth_hdr_tso)); @@ -3141,7 +3112,7 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) if (card->info.type != QETH_CARD_TYPE_IQD) { int len; - if (large_send == QETH_LARGE_SEND_TSO) + if (large_send) len = ((unsigned long)tcp_hdr(new_skb) + tcp_hdr(new_skb)->doff * 4) - (unsigned long)new_skb->data; @@ -3162,7 +3133,7 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) if (new_skb != skb) dev_kfree_skb_any(skb); if (card->options.performance_stats) { - if (large_send != QETH_LARGE_SEND_NO) { + if (large_send) { card->perf_stats.large_send_bytes += tx_bytes; card->perf_stats.large_send_cnt++; } @@ -3248,65 +3219,40 @@ static int qeth_l3_stop(struct net_device *dev) return 0; } -static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev) +static u32 qeth_l3_fix_features(struct net_device *dev, u32 features) { struct qeth_card *card = dev->ml_priv; - return (card->options.checksum_type == HW_CHECKSUMMING); + if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) + features &= ~NETIF_F_IP_CSUM; + if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) + features &= ~NETIF_F_TSO; + if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) + features &= ~NETIF_F_RXCSUM; + + return features; } -static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data) +static int qeth_l3_set_features(struct net_device *dev, u32 features) { - struct qeth_card *card = dev->ml_priv; enum qeth_checksum_types csum_type; + struct qeth_card *card = dev->ml_priv; + u32 changed = dev->features ^ features; - if (data) + if (!(changed & NETIF_F_RXCSUM)) + return 0; + + if (features & NETIF_F_RXCSUM) csum_type = HW_CHECKSUMMING; else csum_type = SW_CHECKSUMMING; + dev->features = features ^ NETIF_F_RXCSUM; return qeth_l3_set_rx_csum(card, csum_type); } -static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data) -{ - struct qeth_card *card = dev->ml_priv; - int rc = 0; - - if (data) { - rc = qeth_l3_set_large_send(card, QETH_LARGE_SEND_TSO); - } else { - dev->features &= ~NETIF_F_TSO; - card->options.large_send = QETH_LARGE_SEND_NO; - } - return rc; -} - -static int qeth_l3_ethtool_set_tx_csum(struct net_device *dev, u32 data) -{ - struct qeth_card *card = dev->ml_priv; - - if (data) { - if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) - dev->features |= NETIF_F_IP_CSUM; - else - return -EPERM; - } else - dev->features &= ~NETIF_F_IP_CSUM; - - return 0; -} - static const struct ethtool_ops qeth_l3_ethtool_ops = { .get_link = ethtool_op_get_link, - .get_tx_csum = ethtool_op_get_tx_csum, - .set_tx_csum = qeth_l3_ethtool_set_tx_csum, - .get_rx_csum = qeth_l3_ethtool_get_rx_csum, - .set_rx_csum = qeth_l3_ethtool_set_rx_csum, - .get_sg = ethtool_op_get_sg, - .set_sg = ethtool_op_set_sg, - .get_tso = ethtool_op_get_tso, - .set_tso = qeth_l3_ethtool_set_tso, .get_strings = qeth_core_get_strings, .get_ethtool_stats = qeth_core_get_ethtool_stats, .get_sset_count = qeth_core_get_sset_count, @@ -3347,6 +3293,8 @@ static const struct net_device_ops qeth_l3_netdev_ops = { .ndo_set_multicast_list = qeth_l3_set_multicast_list, .ndo_do_ioctl = qeth_l3_do_ioctl, .ndo_change_mtu = qeth_change_mtu, + .ndo_fix_features = qeth_l3_fix_features, + .ndo_set_features = qeth_l3_set_features, .ndo_vlan_rx_register = qeth_l3_vlan_rx_register, .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid, @@ -3362,6 +3310,8 @@ static const struct net_device_ops qeth_l3_osa_netdev_ops = { .ndo_set_multicast_list = qeth_l3_set_multicast_list, .ndo_do_ioctl = qeth_l3_do_ioctl, .ndo_change_mtu = qeth_change_mtu, + .ndo_fix_features = qeth_l3_fix_features, + .ndo_set_features = qeth_l3_set_features, .ndo_vlan_rx_register = qeth_l3_vlan_rx_register, .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid, @@ -3392,8 +3342,6 @@ 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->features |= NETIF_F_GRO; } } else if (card->info.type == QETH_CARD_TYPE_IQD) { card->dev = alloc_netdev(0, "hsi%d", ether_setup); @@ -3409,6 +3357,8 @@ 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; @@ -3516,7 +3466,6 @@ contin: rc = qeth_l3_start_ipassists(card); if (rc) QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); - qeth_l3_set_large_send(card, card->options.large_send); rc = qeth_l3_setrouting_v4(card); if (rc) QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c index 67cfa68dcf1b..bf9f003e3a97 100644 --- a/drivers/s390/net/qeth_l3_sys.c +++ b/drivers/s390/net/qeth_l3_sys.c @@ -410,39 +410,42 @@ static ssize_t qeth_l3_dev_large_send_show(struct device *dev, if (!card) return -EINVAL; - switch (card->options.large_send) { - case QETH_LARGE_SEND_NO: + if (!(card->dev->features & NETIF_F_TSO)) return sprintf(buf, "%s\n", "no"); - case QETH_LARGE_SEND_TSO: + else return sprintf(buf, "%s\n", "TSO"); - default: - return sprintf(buf, "%s\n", "N/A"); - } } 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 = dev_get_drvdata(dev); - enum qeth_large_send_types type; - int rc = 0; + struct qeth_card *card; char *tmp; + int enable; if (!card) return -EINVAL; tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "no")) - type = QETH_LARGE_SEND_NO; + enable = 0; else if (!strcmp(tmp, "TSO")) - type = QETH_LARGE_SEND_TSO; + enable = 1; else return -EINVAL; - mutex_lock(&card->conf_mutex); - if (card->options.large_send != type) - rc = qeth_l3_set_large_send(card, type); - mutex_unlock(&card->conf_mutex); - return rc ? rc : count; + 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,