diff options
| author | mlaier <mlaier@FreeBSD.org> | 2004-10-08 16:14:42 +0000 |
|---|---|---|
| committer | mlaier <mlaier@FreeBSD.org> | 2004-10-08 16:14:42 +0000 |
| commit | b5e56e2ca94c36a11a6f85a78382b218156e054b (patch) | |
| tree | ed4084a8a1bf712a55ee3fbbfd4c4abc2d589c0d /sys/pci/if_sis.c | |
| parent | 94efc7605774ab918c26765ad2ff86c64e37ecc7 (diff) | |
| download | FreeBSD-src-b5e56e2ca94c36a11a6f85a78382b218156e054b.zip FreeBSD-src-b5e56e2ca94c36a11a6f85a78382b218156e054b.tar.gz | |
Fix sis, bfe and ndis in the same way dc was fixed:
Do not tell the hardware to send when there were no packets enqueued.
Found and reviewed by: green
MFC after: 1 days
Diffstat (limited to 'sys/pci/if_sis.c')
| -rw-r--r-- | sys/pci/if_sis.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/sys/pci/if_sis.c b/sys/pci/if_sis.c index 6a30c7e..0fe85ab 100644 --- a/sys/pci/if_sis.c +++ b/sys/pci/if_sis.c @@ -1954,7 +1954,7 @@ sis_start(ifp) { struct sis_softc *sc; struct mbuf *m_head = NULL; - u_int32_t idx; + u_int32_t idx, queued = 0; sc = ifp->if_softc; SIS_LOCK(sc); @@ -1982,6 +1982,8 @@ sis_start(ifp) break; } + queued++; + /* * If there's a BPF listener, bounce a copy of this frame * to him. @@ -1990,14 +1992,16 @@ sis_start(ifp) } - /* Transmit */ - sc->sis_cdata.sis_tx_prod = idx; - SIS_SETBIT(sc, SIS_CSR, SIS_CSR_TX_ENABLE); + if (queued) { + /* Transmit */ + sc->sis_cdata.sis_tx_prod = idx; + SIS_SETBIT(sc, SIS_CSR, SIS_CSR_TX_ENABLE); - /* - * Set a timeout in case the chip goes out to lunch. - */ - ifp->if_timer = 5; + /* + * Set a timeout in case the chip goes out to lunch. + */ + ifp->if_timer = 5; + } SIS_UNLOCK(sc); |
