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Missing RSS support added, this fixes the build, but the code

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in the RX side was complicated by recent changes and will need
some further tweaking.
This commit is contained in:
Jack F Vogel 2015-01-12 20:59:07 +00:00
parent 8b36eba6c0
commit 845a028fa3
1 changed files with 29 additions and 7 deletions
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36
sys/dev/ixl/ixl_txrx.c
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@ -65,14 +65,33 @@ ixl_mq_start(struct ifnet *ifp, struct mbuf *m)
struct ixl_queue *que;
struct tx_ring *txr;
int err, i;
#ifdef RSS
u32 bucket_id;
#endif
/* Which queue to use */
if ((m->m_flags & M_FLOWID) != 0)
i = m->m_pkthdr.flowid % vsi->num_queues;
else
/*
** Which queue to use:
**
** When doing RSS, map it to the same outbound
** queue as the incoming flow would be mapped to.
** If everything is setup correctly, it should be
** the same bucket that the current CPU we're on is.
*/
if (M_HASHTYPE_GET(m) != M_HASHTYPE_NONE) {
#ifdef RSS
if (rss_hash2bucket(m->m_pkthdr.flowid,
M_HASHTYPE_GET(m), &bucket_id) == 0) {
i = bucket_id % vsi->num_queues;
} else
#endif
i = m->m_pkthdr.flowid % vsi->num_queues;
} else
i = curcpu % vsi->num_queues;
/* Check for a hung queue and pick alternative */
/*
** This may not be perfect, but until something
** better comes along it will keep from scheduling
** on stalled queues.
*/
if (((1 << i) & vsi->active_queues) == 0)
i = ffsl(vsi->active_queues);
@ -1542,8 +1561,11 @@ ixl_rxeof(struct ixl_queue *que, int count)
rxr->bytes += sendmp->m_pkthdr.len;
if ((ifp->if_capenable & IFCAP_RXCSUM) != 0)
ixl_rx_checksum(sendmp, status, error, ptype);
#ifdef RSS
/* XXX Work in Progress, fix the build for now */
#endif
sendmp->m_pkthdr.flowid = que->msix;
sendmp->m_flags |= M_FLOWID;
M_HASHTYPE_SET(sendmp, M_HASHTYPE_OPAQUE);
}
next_desc:
bus_dmamap_sync(rxr->dma.tag, rxr->dma.map,