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doc/pcie: correct command line examples 

Nit picking: Multi-function PCI Express Root Ports should mean that
'addr' property is mandatory, and slot is optional because it defaults
to 0, and 'chassis' is mandatory for 2nd & 3rd root port because it
defaults to 0 too.

Bonus: fix a typo(2->3)
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Cao jin 2016-12-29 09:19:37 +08:00 committed by Michael S. Tsirkin
parent 12d37882f0
commit 2e41dfe152
1 changed files with 6 additions and 6 deletions
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docs/pcie.txt
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@ -110,18 +110,18 @@ Plug only PCI Express devices into PCI Express Ports.
-device ioh3420,id=root_port1,chassis=x,slot=y[,bus=pcie.0][,addr=z] \
-device <dev>,bus=root_port1
2.2.2 Using multi-function PCI Express Root Ports:
-device ioh3420,id=root_port1,multifunction=on,chassis=x,slot=y[,bus=pcie.0][,addr=z.0] \
-device ioh3420,id=root_port2,chassis=x1,slot=y1[,bus=pcie.0][,addr=z.1] \
-device ioh3420,id=root_port3,chassis=x2,slot=y2[,bus=pcie.0][,addr=z.2] \
2.2.2 Plugging a PCI Express device into a Switch:
-device ioh3420,id=root_port1,multifunction=on,chassis=x,addr=z.0[,slot=y][,bus=pcie.0] \
-device ioh3420,id=root_port2,chassis=x1,addr=z.1[,slot=y1][,bus=pcie.0] \
-device ioh3420,id=root_port3,chassis=x2,addr=z.2[,slot=y2][,bus=pcie.0] \
2.2.3 Plugging a PCI Express device into a Switch:
-device ioh3420,id=root_port1,chassis=x,slot=y[,bus=pcie.0][,addr=z] \
-device x3130-upstream,id=upstream_port1,bus=root_port1[,addr=x] \
-device xio3130-downstream,id=downstream_port1,bus=upstream_port1,chassis=x1,slot=y1[,addr=z1]] \
-device <dev>,bus=downstream_port1
Notes:
- (slot, chassis) pair is mandatory and must be
unique for each PCI Express Root Port.
- (slot, chassis) pair is mandatory and must be unique for each
PCI Express Root Port. slot defaults to 0 when not specified.
- 'addr' parameter can be 0 for all the examples above.