Author: hselasky
Date: Mon Oct 7 08:11:12 2019
New Revision: 353171
URL: https://svnweb.freebsd.org/changeset/base/353171
Log:
MFC r352554:
The maximum TD size is 31 and not 15.
Found at: EuroBSDcon 2019
Sponsored by: Mellanox Technologies
Modified:
stable/10/sys/dev/usb/controller/xhci.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/dev/usb/controller/xhci.c
==============================================================================
--- stable/10/sys/dev/usb/controller/xhci.c Mon Oct 7 08:10:26 2019
(r353170)
+++ stable/10/sys/dev/usb/controller/xhci.c Mon Oct 7 08:11:12 2019
(r353171)
@@ -2007,7 +2007,7 @@ restart:
/* clear TD SIZE to zero, hence this is the last TRB */
/* remove chain bit because this is the last data TRB in the chain */
- td->td_trb[td->ntrb - 1].dwTrb2 &= ~htole32(XHCI_TRB_2_TDSZ_SET(15));
+ td->td_trb[td->ntrb - 1].dwTrb2 &= ~htole32(XHCI_TRB_2_TDSZ_SET(31));
td->td_trb[td->ntrb - 1].dwTrb3 &= ~htole32(XHCI_TRB_3_CHAIN_BIT);
/* remove CHAIN-BIT from last LINK TRB */
td->td_trb[td->ntrb].dwTrb3 &= ~htole32(XHCI_TRB_3_CHAIN_BIT);
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