On Tue, Jun 09, 2015 at 05:44:30AM -0400, Allen Hubbe wrote:
> From: Dave Jiang <dave.jiang@xxxxxxxxx>
>
> Importance: High
Looks like junk, maybe inadvertently copied from an email header?
> The transport was writing and then reading the peer spad, essentially
> reading what it just wrote instead of exchanging any information with
> the peer. The transport expects the peer values to be the same as the
> local values, so this issue was not obvious.
>
> Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>
> ---
> drivers/ntb/ntb_transport.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
> index 9faf1c6029af..d9538e911df6 100644
> --- a/drivers/ntb/ntb_transport.c
> +++ b/drivers/ntb/ntb_transport.c
> @@ -761,17 +761,17 @@ static void ntb_transport_link_work(struct work_struct *work)
> ntb_peer_spad_write(ndev, VERSION, NTB_TRANSPORT_VERSION);
>
> /* Query the remote side for its info */
> - val = ntb_peer_spad_read(ndev, VERSION);
> + val = ntb_spad_read(ndev, VERSION);
> dev_dbg(&pdev->dev, "Remote version = %d\n", val);
> if (val != NTB_TRANSPORT_VERSION)
> goto out;
>
> - val = ntb_peer_spad_read(ndev, NUM_QPS);
> + val = ntb_spad_read(ndev, NUM_QPS);
> dev_dbg(&pdev->dev, "Remote max number of qps = %d\n", val);
> if (val != nt->qp_count)
> goto out;
>
> - val = ntb_peer_spad_read(ndev, NUM_MWS);
> + val = ntb_spad_read(ndev, NUM_MWS);
> dev_dbg(&pdev->dev, "Remote number of mws = %d\n", val);
> if (val != nt->mw_count)
> goto out;
> @@ -779,10 +779,10 @@ static void ntb_transport_link_work(struct work_struct *work)
> for (i = 0; i < nt->mw_count; i++) {
> u64 val64;
>
> - val = ntb_peer_spad_read(ndev, MW0_SZ_HIGH + (i * 2));
> + val = ntb_spad_read(ndev, MW0_SZ_HIGH + (i * 2));
> val64 = (u64)val << 32;
>
> - val = ntb_peer_spad_read(ndev, MW0_SZ_LOW + (i * 2));
> + val = ntb_spad_read(ndev, MW0_SZ_LOW + (i * 2));
> val64 |= val;
>
> dev_dbg(&pdev->dev, "Remote MW%d size = %#llx\n", i, val64);
> --
> 2.4.0.rc0.43.gcf8a8c6
>
> --
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