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Commit 16c0f936 authored by Frank Blaschka's avatar Frank Blaschka Committed by David S. Miller
Browse files

qeth: l3 hw tx csum circumvent hw bug 



Some OSA level have a bug in the hw tx csum logic. We can circumvent
this bug by turning on IP hw csum also.

Signed-off-by: default avatarFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 39423440

drivers/s390/net/qeth_l3_main.c

+3 −1
Original line number Diff line number Diff line
@@ -2998,7 +2998,9 @@ static inline void qeth_l3_hdr_csum(struct qeth_card *card, 
	 */

	if (iph->protocol == IPPROTO_UDP)

		hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;

	hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;

	hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |

		QETH_HDR_EXT_CSUM_HDR_REQ;

	iph->check = 0;

	if (card->options.performance_stats)

		card->perf_stats.tx_csum++;

}