USB network (NCM driver):

- correct the ethernet payload remainder which
must be post-offseted by -14 bytes instead of
0 bytes. This is not very clearly defined in the
NCM specification.
- add development feature about limiting the
maximum datagram count in each NCM payload.
- zero-pad alignment data
- add TX-interval tuning sysctl

Approved by:    thompsa (mentor)

1 files changed, 2 insertions, 1 deletions

diff --git a/sys/dev/usb/usb_cdc.h b/sys/dev/usb/usb_cdc.h
index c5a13f66509a..b8f59faeca6a 100644
--- a/sys/dev/usb/usb_cdc.h
+++ b/sys/dev/usb/usb_cdc.h
@@ -241,6 +241,7 @@ struct usb_ncm_func_descriptor {
 #define	UCDC_NCM_CAP_ENCAP	0x04
 #define	UCDC_NCM_CAP_MAX_DATA	0x08
 #define	UCDC_NCM_CAP_CRCMODE	0x10
+#define	UCDC_NCM_CAP_MAX_DGRAM	0x20
 } __packed;
 
 /* Communications interface specific class request codes */
@@ -276,7 +277,7 @@ struct usb_ncm_parameters {
 	uWord	wNdpOutDivisor;
 	uWord	wNdpOutPayloadRemainder;
 	uWord	wNdpOutAlignment;
-	uWord	wReserved26;
+	uWord	wNtbOutMaxDatagrams;
 } __packed;
 
 /* Communications interface specific class notification codes */