Messages in this thread Patch in this message | | | From | Allen Hubbe <> | Subject | [PATCH v3 07/18] NTB: Do not advance transport RX on link down | Date | Tue, 9 Jun 2015 05:44:34 -0400 |
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On link down, don't advance RX index to the next entry. The next entry should never be valid after receiving the link down flag.
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> --- drivers/ntb/ntb_transport.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c index 8d9b59f7fa07..0f86b60a0c0e 100644 --- a/drivers/ntb/ntb_transport.c +++ b/drivers/ntb/ntb_transport.c @@ -1212,8 +1212,7 @@ static int ntb_process_rxc(struct ntb_transport_qp *qp) dev_dbg(&qp->ndev->pdev->dev, "link down flag set\n"); ntb_qp_link_down(qp); hdr->flags = 0; - iowrite32(qp->rx_index, &qp->rx_info->entry); - return 0; + return -EAGAIN; } if (hdr->ver != (u32)qp->rx_pkts) { -- 2.4.0.rc0.43.gcf8a8c6
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