mirror of https://gitee.com/openkylin/linux.git
qeth: allow HiperSockets framesize change in suspend
For HiperSockets the framesize-definition determines the selected mtu-size and the size of the allocated qdio buffers. A framesize-change may occur while a Linux system with probed HiperSockets device is in suspend state. This patch enables proper resuming of a HiperSockets device in this case. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1887,8 +1887,16 @@ static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
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QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
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return 0;
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}
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card->info.max_mtu = mtu;
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if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) {
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/* frame size has changed */
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if (card->dev &&
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((card->dev->mtu == card->info.initial_mtu) ||
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(card->dev->mtu > mtu)))
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card->dev->mtu = mtu;
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qeth_free_qdio_buffers(card);
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}
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card->info.initial_mtu = mtu;
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card->info.max_mtu = mtu;
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card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
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} else {
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card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
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