CVS commit: src/sys/dev/pci/ixgbe

["Rin Okuyama" <rin%netbsd.org@localhost>]

Module Name:    src
Committed By:   rin
Date:           Tue May 11 01:30:30 UTC 2021

Modified Files:
        src/sys/dev/pci/ixgbe: ix_txrx.c

Log Message:
Call bus_dmamap_unload(9) via ixgbe_dmamap_unload(), before freeing
DMA buffer. Also, when the buffer is already freed, do not call
bus_dmamap_unload(9) (no resource leaks with this change).

Otherwise, MMU fault occurs for some bus_dma(9) implementations.

With this fix, X550-T1 and X540-T1 work fine on alpha (at least
DS10 with PCI-PCIe reverse bridge).

Discussed with msaitoh. Thanks!


To generate a diff of this commit:
cvs rdiff -u -r1.71 -r1.72 src/sys/dev/pci/ixgbe/ix_txrx.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.