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| author | jhb <jhb@FreeBSD.org> | 2011-04-27 20:08:44 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2011-04-27 20:08:44 +0000 |
| commit | da3b304fc1e3776979accc2d8a8e24dfc299fb05 (patch) | |
| tree | df2af84c37d2675ba89e5b02339a754c658ef70c /sys/dev/pci | |
| parent | 65657fce6578ef31040fa2321c2090efc54e9ebf (diff) | |
| download | FreeBSD-src-da3b304fc1e3776979accc2d8a8e24dfc299fb05.zip FreeBSD-src-da3b304fc1e3776979accc2d8a8e24dfc299fb05.tar.gz | |
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
Diffstat (limited to 'sys/dev/pci')
| -rw-r--r-- | sys/dev/pci/pci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/pci/pci.c b/sys/dev/pci/pci.c index 40e3b0c..e14dc93 100644 --- a/sys/dev/pci/pci.c +++ b/sys/dev/pci/pci.c @@ -1969,7 +1969,7 @@ pci_alloc_msi_method(device_t dev, device_t child, int *count) 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) |
