Date: Sun, 11 Oct 2015 20:59:40 +0000 (UTC) From: "Conrad E. Meyer" <cem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r289155 - head/sys/dev/ntb/if_ntb Message-ID: <201510112059.t9BKxeS9087048@repo.freebsd.org>
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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
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