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net/hns3: fix long task queue pairs reset time

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Currently, the queue reset process needs to be performed one by one,
which is inefficient. However, the queues reset in the same function is
almost at the same stage. To optimize the queue reset process, a new
function has been added to the firmware command HNS3_OPC_CFG_RST_TRIGGER
to reset all queues in the same function at a time. And the related
queue reset MBX message is adjusted in the same way too.

Fixes: bba6366983 ("net/hns3: support Rx/Tx and related operations")
Cc: stable@dpdk.org

Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
This commit is contained in:
Chengchang Tang 2021-03-23 21:45:56 +08:00 committed by Ferruh Yigit
parent 398ee80192
commit 6911e7c22c
2 changed files with 114 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/hns3/hns3_cmd.h
View File

@ -933,10 +933,16 @@ struct hns3_reset_tqp_queue_cmd {
#define HNS3_CFG_RESET_MAC_B 3
#define HNS3_CFG_RESET_FUNC_B 7
#define HNS3_CFG_RESET_RCB_B 1
struct hns3_reset_cmd {
uint8_t mac_func_reset;
uint8_t fun_reset_vfid;
uint8_t rsv[22];
uint8_t fun_reset_rcb;
uint8_t rsv1;
uint16_t fun_reset_rcb_vqid_start;
uint16_t fun_reset_rcb_vqid_num;
uint8_t fun_reset_rcb_return_status;
uint8_t rsv2[15];
};
#define HNS3_QUERY_DEV_SPECS_BD_NUM 4

125
drivers/net/hns3/hns3_rxtx.c
View File

@ -629,10 +629,6 @@ hns3pf_reset_tqp(struct hns3_hw *hw, uint16_t queue_id)
uint64_t end;
int ret;
ret = hns3_tqp_enable(hw, queue_id, false);
if (ret)
return ret;
/*
* In current version VF is not supported when PF is driven by DPDK
* driver, all task queue pairs are mapped to PF function, so PF's queue
@ -679,11 +675,6 @@ hns3vf_reset_tqp(struct hns3_hw *hw, uint16_t queue_id)
uint8_t msg_data[2];
int ret;
/* Disable VF's queue before send queue reset msg to PF */
ret = hns3_tqp_enable(hw, queue_id, false);
if (ret)
return ret;
memcpy(msg_data, &queue_id, sizeof(uint16_t));
ret = hns3_send_mbx_msg(hw, HNS3_MBX_QUEUE_RESET, 0, msg_data,
@ -695,14 +686,105 @@ hns3vf_reset_tqp(struct hns3_hw *hw, uint16_t queue_id)
}
static int
hns3_reset_tqp(struct hns3_adapter *hns, uint16_t queue_id)
hns3_reset_rcb_cmd(struct hns3_hw *hw, uint8_t *reset_status)
{
struct hns3_hw *hw = &hns->hw;
struct hns3_reset_cmd *req;
struct hns3_cmd_desc desc;
int ret;
if (hns->is_vf)
return hns3vf_reset_tqp(hw, queue_id);
else
return hns3pf_reset_tqp(hw, queue_id);
hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_CFG_RST_TRIGGER, false);
req = (struct hns3_reset_cmd *)desc.data;
hns3_set_bit(req->mac_func_reset, HNS3_CFG_RESET_RCB_B, 1);
/*
* The start qid should be the global qid of the first tqp of the
* function which should be reset in this port. Since our PF not
* support take over of VFs, so we only need to reset function 0,
* and its start qid is always 0.
*/
req->fun_reset_rcb_vqid_start = rte_cpu_to_le_16(0);
req->fun_reset_rcb_vqid_num = rte_cpu_to_le_16(hw->cfg_max_queues);
ret = hns3_cmd_send(hw, &desc, 1);
if (ret) {
hns3_err(hw, "fail to send rcb reset cmd, ret = %d.", ret);
return ret;
}
*reset_status = req->fun_reset_rcb_return_status;
return 0;
}
static int
hns3pf_reset_all_tqps(struct hns3_hw *hw)
{
#define HNS3_RESET_RCB_NOT_SUPPORT 0U
#define HNS3_RESET_ALL_TQP_SUCCESS 1U
uint8_t reset_status;
int ret;
int i;
ret = hns3_reset_rcb_cmd(hw, &reset_status);
if (ret)
return ret;
/*
* If the firmware version is low, it may not support the rcb reset
* which means reset all the tqps at a time. In this case, we should
* reset tqps one by one.
*/
if (reset_status == HNS3_RESET_RCB_NOT_SUPPORT) {
for (i = 0; i < hw->cfg_max_queues; i++) {
ret = hns3pf_reset_tqp(hw, i);
if (ret) {
hns3_err(hw,
"fail to reset tqp, queue_id = %d, ret = %d.",
i, ret);
return ret;
}
}
} else if (reset_status != HNS3_RESET_ALL_TQP_SUCCESS) {
hns3_err(hw, "fail to reset all tqps, reset_status = %u.",
reset_status);
return -EIO;
}
return 0;
}
static int
hns3vf_reset_all_tqps(struct hns3_hw *hw)
{
#define HNS3VF_RESET_ALL_TQP_DONE 1U
uint8_t reset_status;
uint8_t msg_data[2];
int ret;
int i;
memset(msg_data, 0, sizeof(uint16_t));
ret = hns3_send_mbx_msg(hw, HNS3_MBX_QUEUE_RESET, 0, msg_data,
sizeof(msg_data), true, &reset_status,
sizeof(reset_status));
if (ret) {
hns3_err(hw, "fail to send rcb reset mbx, ret = %d.", ret);
return ret;
}
if (reset_status == HNS3VF_RESET_ALL_TQP_DONE)
return 0;
/*
* If the firmware version or kernel PF version is low, it may not
* support the rcb reset which means reset all the tqps at a time.
* In this case, we should reset tqps one by one.
*/
for (i = 1; i < hw->cfg_max_queues; i++) {
ret = hns3vf_reset_tqp(hw, i);
if (ret)
return ret;
}
return 0;
}
int
@ -711,14 +793,21 @@ hns3_reset_all_tqps(struct hns3_adapter *hns)
struct hns3_hw *hw = &hns->hw;
int ret, i;
/* Disable all queues before reset all queues */
for (i = 0; i < hw->cfg_max_queues; i++) {
ret = hns3_reset_tqp(hns, i);
ret = hns3_tqp_enable(hw, i, false);
if (ret) {
hns3_err(hw, "Failed to reset No.%d queue: %d", i, ret);
hns3_err(hw,
"fail to disable tqps before tqps reset, ret = %d.",
ret);
return ret;
}
}
return 0;
if (hns->is_vf)
return hns3vf_reset_all_tqps(hw);
else
return hns3pf_reset_all_tqps(hw);
}
static int