Module Name: src
Committed By: knakahara
Date: Tue Jan 12 05:08:50 UTC 2021
Modified Files:
src/share/man/man9: pci_msi.9
Log Message:
Fix PR kern/55920 . Add pci_msi_count() and pci_msix_count() description.
To generate a diff of this commit:
cvs rdiff -u -r1.17 -r1.18 src/share/man/man9/pci_msi.9
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/share/man/man9/pci_msi.9
diff -u src/share/man/man9/pci_msi.9:1.17 src/share/man/man9/pci_msi.9:1.18
--- src/share/man/man9/pci_msi.9:1.17 Tue Nov 27 20:13:43 2018
+++ src/share/man/man9/pci_msi.9 Tue Jan 12 05:08:50 2021
@@ -1,4 +1,4 @@
-.\" $NetBSD: pci_msi.9,v 1.17 2018/11/27 20:13:43 jdolecek Exp $
+.\" $NetBSD: pci_msi.9,v 1.18 2021/01/12 05:08:50 knakahara Exp $
.\"
.\" Copyright (c) 2015 Internet Initiative Japan Inc.
.\" All rights reserved.
@@ -24,7 +24,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
-.Dd November 27, 2018
+.Dd January 12, 2021
.Dt PCI_MSI 9
.Os
.Sh NAME
@@ -96,6 +96,14 @@ which contains, among other things, info
of the device in the PCI bus topology sufficient to allow interrupts
from the device to be handled.
.Pp
+.Fn pci_msi_count
+returns the max number of the device's MSI.
+If the device can not use MSI,
+.Fn pci_msi_count
+returns zero.
+.Fn pci_msix_count
+works in the same manner for MSI-X.
+.Pp
If a driver wishes to establish an MSI handler for the device,
it should pass the
.Ft struct pci_attach_args *
