diff options
| author | Allen Hubbe <Allen.Hubbe@emc.com> | 2015-05-12 10:24:27 (GMT) |
|---|---|---|
| committer | Jon Mason <jdmason@kudzu.us> | 2015-07-04 18:06:24 (GMT) |
| commit | c0900b33d1c8c24246eaedb9553f078024c332fc (patch) | |
| tree | 8d382fbe6b459d012aac37005db58e83117ddbd3 | |
| parent | e22e0b9dcf78ee7a72561a6770c9ea554eb65096 (diff) | |
| download | linux-c0900b33d1c8c24246eaedb9553f078024c332fc.tar.xz | |
NTB: Do not advance transport RX on link down
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>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
| -rw-r--r-- | drivers/ntb/ntb_transport.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c index 8d9b59f..0f86b60 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) { |