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Make upper stack know driver's output status. This change increased

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TX performance from 221kpps to 231kpps.
This commit is contained in:
Pyun YongHyeon 2010-10-04 21:01:27 +00:00
parent b8e98004a9
commit 465a52e06d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=213424
1 changed files with 8 additions and 3 deletions
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11
sys/dev/usb/net/if_axe.c
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@ -912,12 +912,15 @@ axe_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTFN(11, "transfer complete\n");
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
if ((sc->sc_flags & AXE_FLAG_LINK) == 0) {
if ((sc->sc_flags & AXE_FLAG_LINK) == 0 ||
(ifp->if_drv_flags & IFF_DRV_OACTIVE) != 0) {
/*
* don't send anything if there is no link !
* Don't send anything if there is no link or
* controller is busy.
*/
return;
}
@ -988,6 +991,7 @@ axe_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
usbd_xfer_set_frame_len(xfer, 0, pos);
usbd_transfer_submit(xfer);
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
return;
default: /* Error */
@ -995,6 +999,7 @@ axe_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
usbd_errstr(error));
ifp->if_oerrors++;
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
@ -1127,7 +1132,7 @@ axe_stop(struct usb_ether *ue)
AXE_LOCK_ASSERT(sc, MA_OWNED);
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
sc->sc_flags &= ~AXE_FLAG_LINK;
/*