diff options
author | Kenjiro Cho <kjc@cvs.openbsd.org> | 2001-06-27 06:34:54 +0000 |
---|---|---|
committer | Kenjiro Cho <kjc@cvs.openbsd.org> | 2001-06-27 06:34:54 +0000 |
commit | 17cc5dbba19bbbbeb9361149e56ee11dbc22da68 (patch) | |
tree | 8a51ae8b2bde0887aa6650a31196833183a5b94f /sys/dev/usb | |
parent | 30721c7f5299136d216635afefc517f47511b9f3 (diff) |
ALTQ'ify network drivers.
- use the new queue macros.
- use IFQ_POLL() to peek at the next packet.
- use IFQ_IS_EMPTY() for empty check.
- drivers should always check if (m == NULL) after IFQ_DEQUEUE(),
since it could return NULL even when IFQ_IS_EMPTY() is FALSE
under rate-limiting.
- drivers are supposed to call if_start from tx complete interrupts
(in order to trigger the next dequeue under rate-limiting).
Diffstat (limited to 'sys/dev/usb')
-rw-r--r-- | sys/dev/usb/if_aue.c | 16 | ||||
-rw-r--r-- | sys/dev/usb/if_cue.c | 14 | ||||
-rw-r--r-- | sys/dev/usb/if_kue.c | 14 |
3 files changed, 25 insertions, 19 deletions
diff --git a/sys/dev/usb/if_aue.c b/sys/dev/usb/if_aue.c index 0ab8eca568c..9b7552df8d4 100644 --- a/sys/dev/usb/if_aue.c +++ b/sys/dev/usb/if_aue.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_aue.c,v 1.13 2001/05/03 02:20:32 aaron Exp $ */ +/* $OpenBSD: if_aue.c,v 1.14 2001/06/27 06:34:53 kjc Exp $ */ /* $NetBSD: if_aue.c,v 1.55 2001/03/25 22:59:43 augustss Exp $ */ /* * Copyright (c) 1997, 1998, 1999, 2000 @@ -751,8 +751,9 @@ USB_ATTACH(aue) ifp->if_start = aue_start; ifp->if_watchdog = aue_watchdog; #if defined(__OpenBSD__) - ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; + IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); #endif + IFQ_SET_READY(&ifp->if_snd); strncpy(ifp->if_xname, USBDEVNAME(sc->aue_dev), IFNAMSIZ); /* Initialize MII/media info. */ @@ -1149,7 +1150,7 @@ aue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) m_freem(c->aue_mbuf); c->aue_mbuf = NULL; - if (ifp->if_snd.ifq_head != NULL) + if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) aue_start(ifp); splx(s); @@ -1200,7 +1201,7 @@ aue_tick_task(void *xsc) DPRINTFN(2,("%s: %s: got link\n", USBDEVNAME(sc->aue_dev),__FUNCTION__)); sc->aue_link++; - if (ifp->if_snd.ifq_head != NULL) + if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) aue_start(ifp); } } @@ -1277,16 +1278,17 @@ aue_start(struct ifnet *ifp) if (ifp->if_flags & IFF_OACTIVE) return; - IF_DEQUEUE(&ifp->if_snd, m_head); + IFQ_POLL(&ifp->if_snd, m_head); if (m_head == NULL) return; if (aue_send(sc, m_head, 0)) { - IF_PREPEND(&ifp->if_snd, m_head); ifp->if_flags |= IFF_OACTIVE; return; } + IFQ_DEQUEUE(&ifp->if_snd, m_head); + #if NBPFILTER > 0 /* * If there's a BPF listener, bounce a copy of this frame @@ -1592,7 +1594,7 @@ aue_watchdog(struct ifnet *ifp) usbd_get_xfer_status(c->aue_xfer, NULL, NULL, NULL, &stat); aue_txeof(c->aue_xfer, c, stat); - if (ifp->if_snd.ifq_head != NULL) + if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) aue_start(ifp); splx(s); } diff --git a/sys/dev/usb/if_cue.c b/sys/dev/usb/if_cue.c index 6a82299a871..6917fdfa1d7 100644 --- a/sys/dev/usb/if_cue.c +++ b/sys/dev/usb/if_cue.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_cue.c,v 1.8 2001/05/03 02:20:32 aaron Exp $ */ +/* $OpenBSD: if_cue.c,v 1.9 2001/06/27 06:34:53 kjc Exp $ */ /* $NetBSD: if_cue.c,v 1.34 2001/04/12 23:54:56 augustss Exp $ */ /* * Copyright (c) 1997, 1998, 1999, 2000 @@ -578,8 +578,9 @@ USB_ATTACH(cue) ifp->if_start = cue_start; ifp->if_watchdog = cue_watchdog; #if defined(__OpenBSD__) - ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; + IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); #endif + IFQ_SET_READY(&ifp->if_snd); strncpy(ifp->if_xname, USBDEVNAME(sc->cue_dev), IFNAMSIZ); /* Attach the interface. */ @@ -908,7 +909,7 @@ cue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) m_freem(c->cue_mbuf); c->cue_mbuf = NULL; - if (ifp->if_snd.ifq_head != NULL) + if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) cue_start(ifp); splx(s); @@ -1010,16 +1011,17 @@ cue_start(struct ifnet *ifp) if (ifp->if_flags & IFF_OACTIVE) return; - IF_DEQUEUE(&ifp->if_snd, m_head); + IFQ_POLL(&ifp->if_snd, m_head); if (m_head == NULL) return; if (cue_send(sc, m_head, 0)) { - IF_PREPEND(&ifp->if_snd, m_head); ifp->if_flags |= IFF_OACTIVE; return; } + IFQ_DEQUEUE(&ifp->if_snd, m_head); + #if NBPFILTER > 0 /* * If there's a BPF listener, bounce a copy of this frame @@ -1273,7 +1275,7 @@ cue_watchdog(struct ifnet *ifp) usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &stat); cue_txeof(c->cue_xfer, c, stat); - if (ifp->if_snd.ifq_head != NULL) + if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) cue_start(ifp); splx(s); } diff --git a/sys/dev/usb/if_kue.c b/sys/dev/usb/if_kue.c index b2f15b13942..3ee0298c6c7 100644 --- a/sys/dev/usb/if_kue.c +++ b/sys/dev/usb/if_kue.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_kue.c,v 1.10 2001/05/03 02:20:32 aaron Exp $ */ +/* $OpenBSD: if_kue.c,v 1.11 2001/06/27 06:34:53 kjc Exp $ */ /* $NetBSD: if_kue.c,v 1.40 2001/04/08 02:10:57 augustss Exp $ */ /* * Copyright (c) 1997, 1998, 1999, 2000 @@ -519,8 +519,9 @@ USB_ATTACH(kue) ifp->if_start = kue_start; ifp->if_watchdog = kue_watchdog; #if defined(__OpenBSD__) - ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; + IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); #endif + IFQ_SET_READY(&ifp->if_snd); strncpy(ifp->if_xname, USBDEVNAME(sc->kue_dev), IFNAMSIZ); /* Attach the interface. */ @@ -850,7 +851,7 @@ kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) m_freem(c->kue_mbuf); c->kue_mbuf = NULL; - if (ifp->if_snd.ifq_head != NULL) + if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) kue_start(ifp); splx(s); @@ -914,16 +915,17 @@ kue_start(struct ifnet *ifp) if (ifp->if_flags & IFF_OACTIVE) return; - IF_DEQUEUE(&ifp->if_snd, m_head); + IFQ_POLL(&ifp->if_snd, m_head); if (m_head == NULL) return; if (kue_send(sc, m_head, 0)) { - IF_PREPEND(&ifp->if_snd, m_head); ifp->if_flags |= IFF_OACTIVE; return; } + IFQ_DEQUEUE(&ifp->if_snd, m_head); + #if NBPFILTER > 0 /* * If there's a BPF listener, bounce a copy of this frame @@ -1174,7 +1176,7 @@ kue_watchdog(struct ifnet *ifp) usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat); kue_txeof(c->kue_xfer, c, stat); - if (ifp->if_snd.ifq_head != NULL) + if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) kue_start(ifp); splx(s); } |