Author: cem
Date: Sun Oct 11 20:59:40 2015
New Revision: 289155
URL: https://svnweb.freebsd.org/changeset/base/289155
Log:
NTB: MFV 90f9e934: 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.
Authored by: Jon Mason
Obtained from: Linux
Sponsored by: EMC / Isilon Storage Division
Modified:
head/sys/dev/ntb/if_ntb/if_ntb.c
Modified: head/sys/dev/ntb/if_ntb/if_ntb.c
==============================================================================
--- head/sys/dev/ntb/if_ntb/if_ntb.c Sun Oct 11 20:59:02 2015
(r289154)
+++ head/sys/dev/ntb/if_ntb/if_ntb.c Sun Oct 11 20:59:40 2015
(r289155)
@@ -562,7 +562,6 @@ ntb_transport_init_queue(struct ntb_netd
qp->tx_max_frame = min(transport_mtu + sizeof(struct
ntb_payload_header),
tx_size);
qp->tx_max_entry = tx_size / qp->tx_max_frame;
- qp->tx_index = 0;
callout_init(&qp->link_work, 0);
callout_init(&qp->queue_full, 1);
@@ -1192,7 +1191,6 @@ ntb_transport_setup_qp_mw(struct ntb_net
rx_size);
qp->rx_max_entry = rx_size / qp->rx_max_frame;
qp->rx_index = 0;
- qp->tx_index = 0;
qp->remote_rx_info->entry = qp->rx_max_entry;
@@ -1206,6 +1204,7 @@ ntb_transport_setup_qp_mw(struct ntb_net
qp->rx_pkts = 0;
qp->tx_pkts = 0;
+ qp->tx_index = 0;
}
static void
_______________________________________________
svn-src-head@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
