diff options
| author | yongari <yongari@FreeBSD.org> | 2006-08-14 00:36:53 +0000 |
|---|---|---|
| committer | yongari <yongari@FreeBSD.org> | 2006-08-14 00:36:53 +0000 |
| commit | 78a915dfb7092a6ecf5af7f964f1d652d4879f6f (patch) | |
| tree | 9720a143be6473e662051ef835382f7a4dd3c816 /sys/dev/em | |
| parent | ff74569fb442f8ab132b3a0571f8acdabf709690 (diff) | |
| download | FreeBSD-src-78a915dfb7092a6ecf5af7f964f1d652d4879f6f.zip FreeBSD-src-78a915dfb7092a6ecf5af7f964f1d652d4879f6f.tar.gz | |
Apply alignment fixup only when programmed frame size is greater than
MCLBYTES - ETHER_ALIGN. Previously it applied the alignment fixup code
for oversized frames which would result in reduced performance on
strict alignment archs.
Diffstat (limited to 'sys/dev/em')
| -rw-r--r-- | sys/dev/em/if_em.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/dev/em/if_em.c b/sys/dev/em/if_em.c index a5c7567..df48f8b 100644 --- a/sys/dev/em/if_em.c +++ b/sys/dev/em/if_em.c @@ -2805,7 +2805,6 @@ em_txeof(struct adapter *adapter) static int em_get_buf(int i, struct adapter *adapter, struct mbuf *mp) { - struct ifnet *ifp = adapter->ifp; bus_dma_segment_t segs[1]; struct em_buffer *rx_buffer; int error, nsegs; @@ -2823,7 +2822,7 @@ em_get_buf(int i, struct adapter *adapter, struct mbuf *mp) mp->m_next = NULL; } - if (ifp->if_mtu <= ETHERMTU) + if (adapter->hw.max_frame_size <= (MCLBYTES - ETHER_ALIGN)) m_adj(mp, ETHER_ALIGN); rx_buffer = &adapter->rx_buffer_area[i]; @@ -3187,7 +3186,8 @@ em_rxeof(struct adapter *adapter, int count) em_receive_checksum(adapter, current_desc, adapter->fmp); #ifndef __NO_STRICT_ALIGNMENT - if (ifp->if_mtu > ETHERMTU && + if (adapter->hw.max_frame_size > + (MCLBYTES - ETHER_ALIGN) && em_fixup_rx(adapter) != 0) goto skip; #endif |
