Author: np
Date: Wed Jan 20 07:28:14 2010
New Revision: 202678
URL: http://svn.freebsd.org/changeset/base/202678
Log:
Complain if freelist queue sizes are significantly less than desired.
MFC after: 1 day
Modified:
head/sys/dev/cxgb/cxgb_sge.c
Modified: head/sys/dev/cxgb/cxgb_sge.c
==============================================================================
--- head/sys/dev/cxgb/cxgb_sge.c Wed Jan 20 07:27:56 2010
(r202677)
+++ head/sys/dev/cxgb/cxgb_sge.c Wed Jan 20 07:28:14 2010
(r202678)
@@ -541,8 +541,12 @@ t3_sge_prep(adapter_t *adap, struct sge_
jumbo_q_size = min(nmbjumbo4/(3*nqsets), JUMBO_Q_SIZE);
#endif
while (!powerof2(jumbo_q_size))
- jumbo_q_size--;
-
+ jumbo_q_size--;
+
+ if (fl_q_size < (FL_Q_SIZE / 4) || jumbo_q_size < (JUMBO_Q_SIZE / 2))
+ device_printf(adap->dev,
+ "Insufficient clusters and/or jumbo buffers.\n");
+
/* XXX Does ETHER_ALIGN need to be accounted for here? */
p->max_pkt_size = adap->sge.qs[0].fl[1].buf_size - sizeof(struct
cpl_rx_data);
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