summaryrefslogtreecommitdiff
path: root/sys/dev/usb
diff options
context:
space:
mode:
authoraugustss <augustss@NetBSD.org>1999-12-01 00:42:05 +0000
committeraugustss <augustss@NetBSD.org>1999-12-01 00:42:05 +0000
commitb15fcce56ce09ea96cee3ee105237bb0dd04ae99 (patch)
tree8424818def9c740894f6e8b111b4dd3f1248afd1 /sys/dev/usb
parent66a51bd133d8993f3738c2e83c1965b45f3fa9f5 (diff)
Use vertical nscheduling for bulk traffic. It improves bulk thruput a lot.
From FreeBSD and Nick Hibma.
Diffstat (limited to 'sys/dev/usb')
-rw-r--r--sys/dev/usb/uhci.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/sys/dev/usb/uhci.c b/sys/dev/usb/uhci.c
index 93c01bd9f54..eb962383377 100644
--- a/sys/dev/usb/uhci.c
+++ b/sys/dev/usb/uhci.c
@@ -1,4 +1,4 @@
-/* $NetBSD: uhci.c,v 1.68 1999/11/23 20:36:10 augustss Exp $ */
+/* $NetBSD: uhci.c,v 1.69 1999/12/01 00:42:05 augustss Exp $ */
/* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */
/*
@@ -1401,7 +1401,10 @@ uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep)
return (USBD_NOMEM);
}
p->link.std = lastp;
- p->td.td_link = LE(lastlink);
+ if (lastlink == UHCI_PTR_T)
+ p->td.td_link = LE(lastlink);
+ else
+ p->td.td_link = LE(lastlink|UHCI_PTR_VF);
lastp = p;
lastlink = p->physaddr;
p->td.td_status = LE(status);
@@ -1846,7 +1849,7 @@ uhci_device_request(xfer)
return (err);
next = data;
dataend->link.std = stat;
- dataend->td.td_link = LE(stat->physaddr);
+ dataend->td.td_link = LE(stat->physaddr | UHCI_PTR_VF);
} else {
next = stat;
}
@@ -1855,7 +1858,7 @@ uhci_device_request(xfer)
memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req);
setup->link.std = next;
- setup->td.td_link = LE(next->physaddr);
+ setup->td.td_link = LE(next->physaddr | UHCI_PTR_VF);
setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE);
setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr));
setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma));