提交 fe94e2e0 编写于 作者: U Ursula Braun 提交者: David S. Miller

qeth: exploit source MAC address for inbound layer3 packets

OSA-devices operating in layer3 mode offer adding of the source MAC
address to the QDIO header of inbound packets. The qeth driver can
exploit this functionality to replace FAKELL-entries in the ethernet
header of received packets.
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 906f1f07
......@@ -643,7 +643,6 @@ struct qeth_card_options {
int macaddr_mode;
int fake_broadcast;
int add_hhlen;
int fake_ll;
int layer2;
enum qeth_large_send_types large_send;
int performance_stats;
......
......@@ -1072,7 +1072,6 @@ static void qeth_set_intial_options(struct qeth_card *card)
card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
card->options.fake_broadcast = 0;
card->options.add_hhlen = DEFAULT_ADD_HHLEN;
card->options.fake_ll = 0;
card->options.performance_stats = 0;
card->options.rx_sg_cb = QETH_RX_SG_CB;
}
......
......@@ -1207,12 +1207,9 @@ static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
QETH_DBF_TEXT(TRACE, 3, "stsrcmac");
if (!card->options.fake_ll)
return -EOPNOTSUPP;
if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
dev_info(&card->gdev->dev,
"Inbound source address not supported on %s\n",
"Inbound source MAC-address not supported on %s\n",
QETH_CARD_IFNAME(card));
return -EOPNOTSUPP;
}
......@@ -1221,7 +1218,7 @@ static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
IPA_CMD_ASS_START, 0);
if (rc)
dev_warn(&card->gdev->dev,
"Starting proxy ARP support for %s failed\n",
"Starting source MAC-address support for %s failed\n",
QETH_CARD_IFNAME(card));
return rc;
}
......@@ -1921,8 +1918,13 @@ static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card,
memcpy(tg_addr, card->dev->dev_addr,
card->dev->addr_len);
}
card->dev->header_ops->create(skb, card->dev, prot, tg_addr,
"FAKELL", card->dev->addr_len);
if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
card->dev->header_ops->create(skb, card->dev, prot,
tg_addr, &hdr->hdr.l3.dest_addr[2],
card->dev->addr_len);
else
card->dev->header_ops->create(skb, card->dev, prot,
tg_addr, "FAKELL", card->dev->addr_len);
}
#ifdef CONFIG_TR
......
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