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If there is no WQE available for a packet that needs segmentation, drop it

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and return.
This commit is contained in:
Juli Mallett 2011-01-20 23:51:03 +00:00
parent 3e46966ed3
commit 2e2b4ad457
1 changed files with 6 additions and 1 deletions
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7
sys/mips/cavium/octe/ethernet-tx.c
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@ -142,9 +142,14 @@ int cvm_oct_xmit(struct mbuf *m, struct ifnet *ifp)
* in memory we borrow from the WQE pool.
*/
work = cvmx_fpa_alloc(CVMX_FPA_WQE_POOL);
gp = (uint64_t *)work;
if (work == NULL) {
m_freem(m);
ifp->if_oerrors++;
return 1;
}
segs = 0;
gp = (uint64_t *)work;
for (n = m; n != NULL; n = n->m_next) {
if (segs == CVMX_FPA_WQE_POOL_SIZE / sizeof (uint64_t))
panic("%s: too many segments in packet; call m_collapse().", __func__);