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authorJon Mason <jon.mason@intel.com>2013-02-01 15:34:35 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-24 11:36:04 -0700
commit71f5fafba8ede25b833c939ed0c35d8c202fc1e3 (patch)
tree52e68c1e172c3a5606c9d4143aa974e5759d8012
parente71ac54f810d7b4fac5c148052c78d523e57751f (diff)
downloadvexpress-lsk-71f5fafba8ede25b833c939ed0c35d8c202fc1e3.tar.gz
NTB: reset tx_index on link toggle
commit 90f9e934647e652a69396e18c779215a493271cf upstream. If the NTB link toggles, the driver could stop receiving due to the tx_index not being set to 0 on the transmitting size on a link-up event. This is due to the driver expecting the incoming data to start at the beginning of the receive buffer and not at a random place. Signed-off-by: Jon Mason <jon.mason@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/ntb/ntb_transport.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index be416d6850f..73a000ed7a9 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -505,6 +505,7 @@ static void ntb_transport_setup_qp_mw(struct ntb_transport *nt,
qp->rx_pkts = 0;
qp->tx_pkts = 0;
+ qp->tx_index = 0;
}
static void ntb_free_mw(struct ntb_transport *nt, int num_mw)
@@ -819,7 +820,6 @@ static void ntb_transport_init_queue(struct ntb_transport *nt,
qp->tx_mw = qp->rx_info + 1;
qp->tx_max_frame = min(transport_mtu, tx_size);
qp->tx_max_entry = tx_size / qp->tx_max_frame;
- qp->tx_index = 0;
if (nt->debugfs_dir) {
char debugfs_name[4];