IFLIB: do not remove dmamap on buffer unload
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Authored by wma on Jan 17 2018, 11:42 AM.

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shurd
nwhitehorn
jhibbits
mw
imp

Summary

Dmamap is created only on IFC attach. If we remove it on
buffer release, we won't be able to do ifconfig down&up.

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rS FreeBSD src repository - subversion

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wma created this revision.Jan 17 2018, 11:42 AM

Herald added a subscriber: ae. · View Herald TranscriptJan 17 2018, 11:42 AM

With this change, the RX map is never destroyed. Won't they need to be destroyed in iflib_rx_sds_free() before bus_dma_tag_destroy() is called?

This revision now requires changes to proceed.Jan 22 2018, 7:16 PM

wma abandoned this revision.Jan 26 2018, 7:11 AM

shurd mentioned this in D14060: IFLIB: do not remove dmamap on buffer unload.Jan 26 2018, 6:37 PM

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sys/

net/

iflib.c

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IFLIB: do not remove dmamap on buffer unloadAbandonedPublicActions