be2net: fix adaptive interrupt coalescing
The current EQ delay calculation for AIC is based only on RX packet rate.
This fails to be effective when there's only TX and no RX.
This patch inclues:
- Calculating EQ-delay based on both RX and TX pps.
- Modifying EQ-delay of all EQs via one cmd, instead of issuing a separate
cmd for each EQ.
- A new structure to store interrupt coalescing parameters, in a separate
cache-line from the EQ-obj.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 8610530..b282487 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -1716,11 +1716,12 @@
/* set the EQ delay interval of an EQ to specified value
* Uses async mcc
*/
-int be_cmd_modify_eqd(struct be_adapter *adapter, u32 eq_id, u32 eqd)
+int be_cmd_modify_eqd(struct be_adapter *adapter, struct be_set_eqd *set_eqd,
+ int num)
{
struct be_mcc_wrb *wrb;
struct be_cmd_req_modify_eq_delay *req;
- int status = 0;
+ int status = 0, i;
spin_lock_bh(&adapter->mcc_lock);
@@ -1734,13 +1735,15 @@
be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req), wrb, NULL);
- req->num_eq = cpu_to_le32(1);
- req->delay[0].eq_id = cpu_to_le32(eq_id);
- req->delay[0].phase = 0;
- req->delay[0].delay_multiplier = cpu_to_le32(eqd);
+ req->num_eq = cpu_to_le32(num);
+ for (i = 0; i < num; i++) {
+ req->set_eqd[i].eq_id = cpu_to_le32(set_eqd[i].eq_id);
+ req->set_eqd[i].phase = 0;
+ req->set_eqd[i].delay_multiplier =
+ cpu_to_le32(set_eqd[i].delay_multiplier);
+ }
be_mcc_notify(adapter);
-
err:
spin_unlock_bh(&adapter->mcc_lock);
return status;