diff options
| author |   Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> | 2020-05-15 22:41:04 +0530 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-05-15 10:54:07 -0700 |
| commit | 4bccfc036abbdf510de808925c646c8c49e0309e (patch) | |
| tree | adcedec636264f3924879330cf8459b8df542cc3 /drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | |
| parent | cxgb4: improve credits recovery in TC-MQPRIO Tx path (diff) | |
| download | wireguard-linux-4bccfc036abbdf510de808925c646c8c49e0309e.tar.xz wireguard-linux-4bccfc036abbdf510de808925c646c8c49e0309e.zip | |
cxgb4: tune burst buffer size for TC-MQPRIO offload
For each traffic class, firmware handles up to 4 * MTU amount of data
per burst cycle. Under heavy load, this small buffer size is a
bottleneck when buffering large TSO packets in <= 1500 MTU case.
Increase the burst buffer size to 8 * MTU when supported.
Also, keep the driver's traffic class configuration API similar to
the firmware API counterpart.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4.h')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index 30d25a37fc3b..fc1405a8ed74 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -1125,19 +1125,20 @@ struct adapter { * programmed with various parameters. */ struct ch_sched_params { - s8 type; /* packet or flow */ + u8 type; /* packet or flow */ union { struct { - s8 level; /* scheduler hierarchy level */ - s8 mode; /* per-class or per-flow */ - s8 rateunit; /* bit or packet rate */ - s8 ratemode; /* %port relative or kbps absolute */ - s8 channel; /* scheduler channel [0..N] */ - s8 class; /* scheduler class [0..N] */ - s32 minrate; /* minimum rate */ - s32 maxrate; /* maximum rate */ - s16 weight; /* percent weight */ - s16 pktsize; /* average packet size */ + u8 level; /* scheduler hierarchy level */ + u8 mode; /* per-class or per-flow */ + u8 rateunit; /* bit or packet rate */ + u8 ratemode; /* %port relative or kbps absolute */ + u8 channel; /* scheduler channel [0..N] */ + u8 class; /* scheduler class [0..N] */ + u32 minrate; /* minimum rate */ + u32 maxrate; /* maximum rate */ + u16 weight; /* percent weight */ + u16 pktsize; /* average packet size */ + u16 burstsize; /* burst buffer size */ } params; } u; }; @@ -1952,9 +1953,10 @@ int t4_sge_ctxt_rd(struct adapter *adap, unsigned int mbox, unsigned int cid, enum ctxt_type ctype, u32 *data); int t4_sge_ctxt_rd_bd(struct adapter *adap, unsigned int cid, enum ctxt_type ctype, u32 *data); -int t4_sched_params(struct adapter *adapter, int type, int level, int mode, - int rateunit, int ratemode, int channel, int class, - int minrate, int maxrate, int weight, int pktsize); +int t4_sched_params(struct adapter *adapter, u8 type, u8 level, u8 mode, + u8 rateunit, u8 ratemode, u8 channel, u8 class, + u32 minrate, u32 maxrate, u16 weight, u16 pktsize, + u16 burstsize); void t4_sge_decode_idma_state(struct adapter *adapter, int state); void t4_idma_monitor_init(struct adapter *adapter, struct sge_idma_monitor_state *idma); |