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Prevent hang on ATCA-7220 when transmitting packets < 60 bytes.

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This commit is contained in:
Juli Mallett 2012-11-19 08:30:29 +00:00
parent d0ebf478da
commit fcd5eed4f0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=243264
1 changed files with 13 additions and 0 deletions
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13
sys/mips/cavium/octe/ethernet-tx.c
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@ -116,6 +116,19 @@ int cvm_oct_xmit(struct mbuf *m, struct ifnet *ifp)
}
}
#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.
*/