Author: jhb
Date: Wed Apr 27 20:08:44 2011
New Revision: 221138
URL: http://svn.freebsd.org/changeset/base/221138
Log:
Only align MSI message groups based on the number of messages being
allocated, not the maximum number of messages the device supports. The
spec only requires the former, and I believe I implemented the latter due
to misunderstanding an e-mail. In particular, this fixes an issue where
having several devices that all support 16 messages can run out of
IDT vectors on x86 even though the driver only uses a single message.
Submitted by: Bret Ketchum bcketchum of gmail
MFC after: 1 week
Modified:
head/sys/dev/pci/pci.c
Modified: head/sys/dev/pci/pci.c
==============================================================================
--- head/sys/dev/pci/pci.c Wed Apr 27 19:54:45 2011 (r221137)
+++ head/sys/dev/pci/pci.c Wed Apr 27 20:08:44 2011 (r221138)
@@ -1969,7 +1969,7 @@ pci_alloc_msi_method(device_t dev, devic
for (;;) {
/* Try to allocate N messages. */
error = PCIB_ALLOC_MSI(device_get_parent(dev), child, actual,
- cfg->msi.msi_msgnum, irqs);
+ actual, irqs);
if (error == 0)
break;
if (actual == 1)
_______________________________________________
svn-src-all@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
