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| author | jhb <jhb@FreeBSD.org> | 2016-06-24 17:26:42 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2016-06-24 17:26:42 +0000 |
| commit | 73d915a1ae17a1f5e5259b8555ff53f9c3ba1ad2 (patch) | |
| tree | 42c9c5655c7b53d96282330ff2dff3f5bb7e6de4 /share | |
| parent | b5c3fb9427806b740f7df3e43a1513e1f5fa840b (diff) | |
| download | FreeBSD-src-73d915a1ae17a1f5e5259b8555ff53f9c3ba1ad2.zip FreeBSD-src-73d915a1ae17a1f5e5259b8555ff53f9c3ba1ad2.tar.gz | |
Add pci_get_max_payload() to fetch the PCI-express maximum payload size.
Approved by: re (gjb)
MFC after: 2 weeks
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D6951
Diffstat (limited to 'share')
| -rw-r--r-- | share/man/man9/pci.9 | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/share/man/man9/pci.9 b/share/man/man9/pci.9 index 52df250..a53f971 100644 --- a/share/man/man9/pci.9 +++ b/share/man/man9/pci.9 @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd May 16, 2016 +.Dd June 24, 2016 .Dt PCI 9 .Os .Sh NAME @@ -44,6 +44,7 @@ .Nm pci_find_htcap , .Nm pci_find_pcie_root_port , .Nm pci_get_id , +.Nm pci_get_max_payload , .Nm pci_get_max_read_req , .Nm pci_get_powerstate , .Nm pci_get_vpd_ident , @@ -100,6 +101,8 @@ .Ft int .Fn pci_get_id "device_t dev" "enum pci_id_type type" "uintptr_t *id" .Ft int +.Fn pci_get_max_payload "device_t dev" +.Ft int .Fn pci_get_max_read_req "device_t dev" .Ft int .Fn pci_get_powerstate "device_t dev" @@ -461,6 +464,16 @@ or .Xr bus_activate_resource 9 . .Pp The +.Fn pci_get_max_payload +function returns the current maximum TLP payload size in bytes for a +PCI-express device. +If the +.Fa dev +device is not a PCI-express device, +.Fn pci_get_max_payload +returns zero. +.Pp +The .Fn pci_get_max_read_req function returns the current maximum read request size in bytes for a PCI-express device. |
