diff options
Diffstat (limited to 'drivers/block/aoe/aoe.h')
| -rw-r--r-- | drivers/block/aoe/aoe.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h index bfd765cf..b6d2b16 100644 --- a/drivers/block/aoe/aoe.h +++ b/drivers/block/aoe/aoe.h @@ -91,6 +91,9 @@ enum { RTTDSCALE = 3, RTTAVG_INIT = USEC_PER_SEC / 4 << RTTSCALE, RTTDEV_INIT = RTTAVG_INIT / 4, + + HARD_SCORN_SECS = 10, /* try another remote port after this */ + MAX_TAINT = 1000, /* cap on aoetgt taint */ }; struct buf { @@ -103,6 +106,10 @@ struct buf { struct request *rq; }; +enum frame_flags { + FFL_PROBE = 1, +}; + struct frame { struct list_head head; u32 tag; @@ -118,6 +125,7 @@ struct frame { struct bio_vec *bv; ulong bcnt; ulong bv_off; + char flags; }; struct aoeif { @@ -138,8 +146,10 @@ struct aoetgt { ushort next_cwnd; /* incr maxout after decrementing to zero */ ushort ssthresh; /* slow start threshold */ ulong falloc; /* number of allocated frames */ + int taint; /* how much we want to avoid this aoetgt */ int minbcnt; int wpkts, rpkts; + char nout_probes; }; struct aoedev { @@ -174,7 +184,6 @@ struct aoedev { struct list_head rexmitq; /* deferred retransmissions */ struct aoetgt *targets[NTARGETS]; struct aoetgt **tgt; /* target in use when working */ - struct aoetgt *htgt; /* target needing rexmit assistance */ ulong ntargets; ulong kicked; char ident[512]; |
