Date: Mon, 19 Nov 2012 08:30:30 +0000 (UTC) From: Juli Mallett <jmallett@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r243264 - head/sys/mips/cavium/octe Message-ID: <201211190830.qAJ8UUxM018114@svn.freebsd.org>
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Author: jmallett Date: Mon Nov 19 08:30:29 2012 New Revision: 243264 URL: http://svnweb.freebsd.org/changeset/base/243264 Log: Prevent hang on ATCA-7220 when transmitting packets < 60 bytes. Modified: head/sys/mips/cavium/octe/ethernet-tx.c Modified: head/sys/mips/cavium/octe/ethernet-tx.c ============================================================================== --- head/sys/mips/cavium/octe/ethernet-tx.c Mon Nov 19 08:29:53 2012 (r243263) +++ head/sys/mips/cavium/octe/ethernet-tx.c Mon Nov 19 08:30:29 2012 (r243264) @@ -116,6 +116,19 @@ int cvm_oct_xmit(struct mbuf *m, struct } } +#ifdef OCTEON_VENDOR_RADISYS + /* + * The RSYS4GBE will hang if asked to transmit a packet less than 60 bytes. + */ + if (__predict_false(m->m_pkthdr.len < 60) && + cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_CUST_RADISYS_RSYS4GBE) { + static uint8_t pad[60]; + + if (!m_append(m, sizeof pad - m->m_pkthdr.len, pad)) + printf("%s: unable to pad small packet.", __func__); + } +#endif + /* * If the packet is not fragmented. */
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