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| author | yongari <yongari@FreeBSD.org> | 2006-08-14 02:21:26 +0000 |
|---|---|---|
| committer | yongari <yongari@FreeBSD.org> | 2006-08-14 02:21:26 +0000 |
| commit | 297f53342b73885fd27db30f6852e67f9a6c293a (patch) | |
| tree | aec9cb413c3563c1678700a91843eb8be6957a92 /sys/dev/pci/pci_private.h | |
| parent | 494fd63ce267ca352d6bf5af3a85075eecd61d76 (diff) | |
| download | FreeBSD-src-297f53342b73885fd27db30f6852e67f9a6c293a.zip FreeBSD-src-297f53342b73885fd27db30f6852e67f9a6c293a.tar.gz | |
Make em(4) handle too many fragmented frame with m_defrag(9).
Previously em(4) requeued the failed mbuf chains from
bus_dmamap_load_mbuf_sg(9) failure to resend it later. However,
bus_dmamap_load_mbuf_sg(9) may never complete its request as the
fragmented frames can have more than EM_MAX_SCATTER segments.
To handle the above EFBIG case, defragment the frame with m_defrag(9)
and free the mbuf chain if it can't deframent the chain due to
resource shortage.
Reviewed by glebius (with improvements)
Diffstat (limited to 'sys/dev/pci/pci_private.h')
0 files changed, 0 insertions, 0 deletions
