Commit b9139800 authored by Ursula Braun's avatar Ursula Braun Committed by David S. Miller

qeth: omit upstream checksumming for HiperSockets

For HiperSocket devices receive-path checksumming is not required.
Thus NO_CHECKSUMMING is used as default for HiperSocket interfaces.
For layer3 devices configured with NO_CHECKSUMMING received skbs
should have set their ip_summed field to CHECKSUM_UNNECESSARY.
Signed-off-by: default avatarUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: default avatarFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0666eb06
...@@ -1140,6 +1140,8 @@ static int qeth_setup_card(struct qeth_card *card) ...@@ -1140,6 +1140,8 @@ static int qeth_setup_card(struct qeth_card *card)
card->ipato.enabled = 0; card->ipato.enabled = 0;
card->ipato.invert4 = 0; card->ipato.invert4 = 0;
card->ipato.invert6 = 0; card->ipato.invert6 = 0;
if (card->info.type == QETH_CARD_TYPE_IQD)
card->options.checksum_type = NO_CHECKSUMMING;
/* init QDIO stuff */ /* init QDIO stuff */
qeth_init_qdio_info(card); qeth_init_qdio_info(card);
return 0; return 0;
......
...@@ -1920,16 +1920,22 @@ static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card, ...@@ -1920,16 +1920,22 @@ static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card,
hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]); hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
} }
skb->ip_summed = card->options.checksum_type; switch (card->options.checksum_type) {
if (card->options.checksum_type == HW_CHECKSUMMING) { case SW_CHECKSUMMING:
skb->ip_summed = CHECKSUM_NONE;
break;
case NO_CHECKSUMMING:
skb->ip_summed = CHECKSUM_UNNECESSARY;
break;
case HW_CHECKSUMMING:
if ((hdr->hdr.l3.ext_flags & if ((hdr->hdr.l3.ext_flags &
(QETH_HDR_EXT_CSUM_HDR_REQ | (QETH_HDR_EXT_CSUM_HDR_REQ |
QETH_HDR_EXT_CSUM_TRANSP_REQ)) == QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
(QETH_HDR_EXT_CSUM_HDR_REQ | (QETH_HDR_EXT_CSUM_HDR_REQ |
QETH_HDR_EXT_CSUM_TRANSP_REQ)) QETH_HDR_EXT_CSUM_TRANSP_REQ))
skb->ip_summed = CHECKSUM_UNNECESSARY; skb->ip_summed = CHECKSUM_UNNECESSARY;
else else
skb->ip_summed = SW_CHECKSUMMING; skb->ip_summed = CHECKSUM_NONE;
} }
return vlan_id; return vlan_id;
......
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