system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-10-20 15:24:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

- Fix a bug in the TSO transmit routine where frames which had

Browse source 
been defragged and had their headers in the same cluster as their
payload would be fed to the NIC in header-sized chunks, and would
likely exceed the number of available transmit descriptors.

- If a TSO frame exceeds the number of available transmit descriptors,
don't leak busdmma resources when freeing it.

Sponsored by: Myricom Inc.
This commit is contained in:
Andrew Gallatin 2007-04-03 10:41:33 +00:00
parent 329d3aa320
commit e39a0a37cf
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=168298
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
sys/dev/mxge/if_mxge.c
View file

@ -1446,10 +1446,11 @@ mxge_encap_tso(mxge_softc_t *sc, struct mbuf *m, int busdma_seg_cnt)
/* Break the busdma segment up into pieces*/
low = MXGE_LOWPART_TO_U32(seg->ds_addr);
high_swapped = htobe32(MXGE_HIGHPART_TO_U32(seg->ds_addr));
len = seglen = seg->ds_len;
len = seg->ds_len;
while (len) {
flags_next = flags & ~MXGEFW_FLAGS_FIRST;
seglen = len;
cum_len_next = cum_len + seglen;
(req-rdma_count)->rdma_count = rdma_count + 1;
if (__predict_true(cum_len >= 0)) {
@ -1514,6 +1515,7 @@ mxge_encap_tso(mxge_softc_t *sc, struct mbuf *m, int busdma_seg_cnt)
return;
drop:
bus_dmamap_unload(tx->dmat, tx->info[tx->req & tx->mask].map);
m_freem(m);
sc->ifp->if_oerrors++;
if (!once) {