PERFORCE change 132647 for review

[Hans Petter Selasky]

http://perforce.freebsd.org/chv.cgi?CH=132647

Change 132647 by hselasky@hselasky_laptop001 on 2008/01/06 22:17:48

        
        Revise the "Multi Frame Ethernet Header"
        to support fragments.

Affected files ...

.. //depot/projects/usb/src/sys/dev/usb/usb_cdc.h#8 edit

Differences ...

==== //depot/projects/usb/src/sys/dev/usb/usb_cdc.h#8 (text+ko) ====

@@ -188,13 +188,18 @@
 #define        UCDC_MDM_PARITY_ERR             0x20
 #define        UCDC_MDM_OVERRUN_ERR            0x40
 
-/* Multi Frame Ethernet Header */
+/* 512x4 Multi Frame Ethernet Header */
 typedef struct {
-       uByte   bSig0[2];               /* "MF" */
-       uDWord  dwFramesAhead;
-       uDWord  dwFramesAheadInverse;
-} __packed usb_cdc_mf_eth_header_t;
-
-#define        CDC_MF_ETH_HEADER_SIZE 10       /* bytes */
+       uByte   bSig[2];                /* "FL" - Frag List */
+       uByte   bReserved[4];
+       uWord   wFragLength[511 * 4];
+#define        CDCE_512X4_FRAG_LENGTH_OFFSET 6 /* bytes */
+#define        CDCE_512X4_FRAG_LAST_MASK 0x8000
+#define        CDCE_512X4_FRAG_LENGTH_MASK 0x1FFF      /* bytes */
+#define        CDCE_512X4_FRAME_FRAG_MAX 4     /* fragments */
+#define        CDCE_512X4_FRAMES_MAX 511       /* frames */
+#define        CDCE_512X4_FRAGS_MAX (511 * 4)  /* fragments */
+       uWord   wPadding;               /* used to make transfer short */
+} __packed usb_cdc_mf_eth_512x4_header_t;
 
 #endif                                 /* _USB_CDC_H_ */
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