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Re-add the send queue tunable for people who do not use buffering.

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Reviewed by:	jhb
MFC after:	3 days
This commit is contained in:
George V. Neville-Neil 2009-06-11 21:32:26 +00:00
parent 5cd1d3ff17
commit 02c7d9a64f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=194039
1 changed files with 10 additions and 1 deletions
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11
sys/dev/cxgb/cxgb_main.c
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@ -224,6 +224,15 @@ TUNABLE_INT("hw.cxgb.use_16k_clusters", &cxgb_use_16k_clusters);
SYSCTL_UINT(_hw_cxgb, OID_AUTO, use_16k_clusters, CTLFLAG_RDTUN,
&cxgb_use_16k_clusters, 0, "use 16kB clusters for the jumbo queue ");
/*
* Tune the size of the output queue.
*/
int cxgb_snd_queue_len = IFQ_MAXLEN;
TUNABLE_INT("hw.cxgb.snd_queue_len", &cxgb_snd_queue_len);
SYSCTL_UINT(_hw_cxgb, OID_AUTO, snd_queue_len, CTLFLAG_RDTUN,
&cxgb_snd_queue_len, 0, "send queue size ");
enum {
MAX_TXQ_ENTRIES = 16384,
MAX_CTRL_TXQ_ENTRIES = 1024,
@ -1025,7 +1034,7 @@ cxgb_port_attach(device_t dev)
ifp->if_timer = 0; /* Disable ifnet watchdog */
ifp->if_watchdog = NULL;
ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
ifp->if_snd.ifq_drv_maxlen = cxgb_snd_queue_len;
IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen);
IFQ_SET_READY(&ifp->if_snd);