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authorRahul Lakkireddy <rahul.lakkireddy@chelsio.com>2020-05-15 22:41:04 +0530
committerDavid S. Miller <davem@davemloft.net>2020-05-15 10:54:07 -0700
commit4bccfc036abbdf510de808925c646c8c49e0309e (patch)
treeadcedec636264f3924879330cf8459b8df542cc3 /drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
parent4f1d97262d58e0f493d03de4938bce736ac3cf3d (diff)
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/t4_hw.c')
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_hw.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 2a3480fc1d91..1c8068c02728 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -10361,9 +10361,10 @@ int t4_sge_ctxt_rd_bd(struct adapter *adap, unsigned int cid,
return ret;
}
-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)
{
struct fw_sched_cmd cmd;
@@ -10385,6 +10386,7 @@ int t4_sched_params(struct adapter *adapter, int type, int level, int mode,
cmd.u.params.max = cpu_to_be32(maxrate);
cmd.u.params.weight = cpu_to_be16(weight);
cmd.u.params.pktsize = cpu_to_be16(pktsize);
+ cmd.u.params.burstsize = cpu_to_be16(burstsize);
return t4_wr_mbox_meat(adapter, adapter->mbox, &cmd, sizeof(cmd),
NULL, 1);