Date: Tue, 26 Apr 2011 19:40:37 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r221077 - head/sys/dev/usb/net Message-ID: <201104261940.p3QJebFw035817@svn.freebsd.org>
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Author: hselasky Date: Tue Apr 26 19:40:37 2011 New Revision: 221077 URL: http://svn.freebsd.org/changeset/base/221077 Log: The maximum NCM frame size must be so that it will generate a short terminated USB transfer if the maximum NCM frame size is greater than what the driver can handle. Reported by: Matthias Benesch MFC after: 7 days Approved by: thompsa (mentor) Modified: head/sys/dev/usb/net/if_cdcereg.h Modified: head/sys/dev/usb/net/if_cdcereg.h ============================================================================== --- head/sys/dev/usb/net/if_cdcereg.h Tue Apr 26 19:38:30 2011 (r221076) +++ head/sys/dev/usb/net/if_cdcereg.h Tue Apr 26 19:40:37 2011 (r221077) @@ -39,7 +39,7 @@ #define CDCE_IND_SIZE_MAX 32 /* bytes */ #define CDCE_NCM_TX_MINLEN 512 /* bytes, must be power of two */ -#define CDCE_NCM_TX_MAXLEN (1UL << 14) /* bytes */ +#define CDCE_NCM_TX_MAXLEN (16384 + 4) /* bytes, must be short terminated */ #define CDCE_NCM_TX_FRAMES_MAX 8 /* units */ #define CDCE_NCM_RX_MAXLEN (1UL << 14) /* bytes */
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