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Unverified Commit 90f9e934 authored by Jon Mason's avatar Jon Mason
Browse files

NTB: reset tx_index on link toggle 



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: default avatarJon Mason <jon.mason@intel.com>
parent b77b2637

drivers/ntb/ntb_transport.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -505,6 +505,7 @@ static void ntb_transport_setup_qp_mw(struct ntb_transport *nt, 




	qp->rx_pkts = 0;

	qp->rx_pkts = 0;

	qp->tx_pkts = 0;

	qp->tx_pkts = 0;

	qp->tx_index = 0;

}

}





static void ntb_free_mw(struct ntb_transport *nt, int num_mw)

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_mw = qp->rx_info + 1;

	qp->tx_max_frame = min(transport_mtu, tx_size);

	qp->tx_max_frame = min(transport_mtu, tx_size);

	qp->tx_max_entry = tx_size / qp->tx_max_frame;

	qp->tx_max_entry = tx_size / qp->tx_max_frame;

	qp->tx_index = 0;





	if (nt->debugfs_dir) {

	if (nt->debugfs_dir) {

		char debugfs_name[4];

		char debugfs_name[4];