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large (over 4KB) softc struct. The descriptor array is accessed by busmaster dma and must be physically contiguous in memory. malloc() of a block greater than a page is only virtually contiguous, and not necessarily physically contigious. contigmalloc() could do this, but that is a bit on the overkill side. I'm not sure of the origins of the problem report and diagnosis, I learned of the problem via mail forwarded from Jim Shankland <jas@flyingfox.com>. Jim said that Matt Thomas's workaround was to reduce the number of transmit descriptors from 128 to 32, but I was concerned that it might cost performance. Anyway, this change is my fault, not Jim's. :-) Reviewed by: davidg |
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| .. | ||
| aic7870.c | ||
| brktree_reg.h | ||
| brooktree848.c | ||
| bt9xx.c | ||
| cy_pci.c | ||
| cy_pcireg.h | ||
| dc21040reg.h | ||
| ide_pci.c | ||
| ide_pcireg.h | ||
| if_de.c | ||
| if_devar.h | ||
| if_ed_p.c | ||
| if_en_pci.c | ||
| if_fpa.c | ||
| if_fxp.c | ||
| if_fxpreg.h | ||
| if_fxpvar.h | ||
| if_lnc_p.c | ||
| if_sr_p.c | ||
| if_vx_pci.c | ||
| locate.pl | ||
| meteor_reg.h | ||
| meteor.c | ||
| ncr.c | ||
| ncrreg.h | ||
| pci_compat.c | ||
| pci_ioctl.h | ||
| pci.c | ||
| pcireg.h | ||
| pcisupport.c | ||
| pcivar.h | ||
| README.bt848 | ||
| README.de | ||
| README.de-le | ||
| scsiiom.c | ||
| tek390.c | ||
| tek390.h | ||
| wdc_p.c | ||
$Id$ ---------------- The enclosed drivers should be considered beta-test software. These drivers are in no way supported by Digital Equipment. See the disclaimers in the sources for more information. Please be aware that Digital does not employee me to write drivers for FreeBSD. This kit contains one driver: de DEC DE435 PCI NIC or compatible See README.de for information and installation instruction specific to this driver. Could you please send me the startup messages in the boot long along with the type of your PC once the driver configures? If you have any problems, comments, suggestions, rant or raves, don't hesitate to send me mail @ thomas@lkg.dec.com. Lastly, if you change or modify the code, I want context diffs of your changes. I want this to the canonical DEC EtherWORKS driver kit for FreeBSD, NetBSD, BSD/386, and any other BSD based O/S. Please make sure your diffs are approriate conditionalized. Thanks, Matt Thomas -- Mail: thomas@lkg.dec.com URL: http://ftp.digital.com/~thomas/