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Subject[Patch net-next 08/12] net: hns3: add support to config depth for tx|rx ring separately
Date
From: Peng Li <lipeng321@huawei.com>

This patch adds support to config depth for tx|rx ring separately
by ethtool command "-G".

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h | 1 +
drivers/net/ethernet/hisilicon/hns3/hnae3.h | 10 ++--
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 4 +-
drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 2 +-
drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 54 ++++++++++++----------
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 22 ++++++---
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 3 +-
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 28 +++++++++--
.../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 39 ++++++++++++++--
.../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h | 3 +-
10 files changed, 119 insertions(+), 47 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
index 9b6b7b4..299b277 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
@@ -21,6 +21,7 @@ enum HCLGE_MBX_OPCODE {
HCLGE_MBX_SET_MACVLAN, /* (VF -> PF) set unicast filter */
HCLGE_MBX_API_NEGOTIATE, /* (VF -> PF) negotiate API version */
HCLGE_MBX_GET_QINFO, /* (VF -> PF) get queue config */
+ HCLGE_MBX_GET_QDEPTH, /* (VF -> PF) get queue depth */
HCLGE_MBX_GET_TCINFO, /* (VF -> PF) get TC config */
HCLGE_MBX_GET_RETA, /* (VF -> PF) get RETA */
HCLGE_MBX_GET_RSS_KEY, /* (VF -> PF) get RSS key */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 10f1cc2..66d7a8b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -87,7 +87,8 @@ struct hnae3_queue {
struct hnae3_handle *handle;
int tqp_index; /* index in a handle */
u32 buf_size; /* size for hnae_desc->addr, preset by AE */
- u16 desc_num; /* total number of desc */
+ u16 tx_desc_num;/* total number of tx desc */
+ u16 rx_desc_num;/* total number of rx desc */
};

/*hnae3 loop mode*/
@@ -505,7 +506,8 @@ struct hnae3_knic_private_info {
u16 rss_size; /* Allocated RSS queues */
u16 req_rss_size;
u16 rx_buf_len;
- u16 num_desc;
+ u16 num_tx_desc;
+ u16 num_rx_desc;

u8 num_tc; /* Total number of enabled TCs */
u8 prio_tc[HNAE3_MAX_USER_PRIO]; /* TC indexed by prio */
@@ -537,7 +539,9 @@ struct hnae3_roce_private_info {
struct hnae3_unic_private_info {
struct net_device *netdev;
u16 rx_buf_len;
- u16 num_desc;
+ u16 num_tx_desc;
+ u16 num_rx_desc;
+
u16 num_tqps; /* total number of tqps in this handle */
struct hnae3_queue **tqp; /* array base of all TQPs of this instance */
};
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 236b340..9f9a52d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -3231,19 +3231,21 @@ static int hns3_ring_get_cfg(struct hnae3_queue *q, struct hns3_nic_priv *priv,
{
struct hns3_nic_ring_data *ring_data = priv->ring_data;
int queue_num = priv->ae_handle->kinfo.num_tqps;
- int desc_num = priv->ae_handle->kinfo.num_desc;
struct pci_dev *pdev = priv->ae_handle->pdev;
struct hns3_enet_ring *ring;
+ int desc_num;

ring = devm_kzalloc(&pdev->dev, sizeof(*ring), GFP_KERNEL);
if (!ring)
return -ENOMEM;

if (ring_type == HNAE3_RING_TYPE_TX) {
+ desc_num = priv->ae_handle->kinfo.num_tx_desc;
ring_data[q->tqp_index].ring = ring;
ring_data[q->tqp_index].queue_index = q->tqp_index;
ring->io_base = (u8 __iomem *)q->io_base + HNS3_TX_REG_OFFSET;
} else {
+ desc_num = priv->ae_handle->kinfo.num_rx_desc;
ring_data[q->tqp_index + queue_num].ring = ring;
ring_data[q->tqp_index + queue_num].queue_index = q->tqp_index;
ring->io_base = q->io_base;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index 3a1e487..1db0bd4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -74,7 +74,7 @@ enum hns3_nic_state {
#define HNS3_RING_NAME_LEN 16
#define HNS3_BUFFER_SIZE_2048 2048
#define HNS3_RING_MAX_PENDING 32768
-#define HNS3_RING_MIN_PENDING 8
+#define HNS3_RING_MIN_PENDING 24
#define HNS3_RING_BD_MULTIPLE 8
/* max frame size of mac */
#define HNS3_MAC_MAX_FRAME 9728
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index d94c90a..359d473 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -748,15 +748,19 @@ static int hns3_get_rxnfc(struct net_device *netdev,
}

static int hns3_change_all_ring_bd_num(struct hns3_nic_priv *priv,
- u32 new_desc_num)
+ u32 tx_desc_num, u32 rx_desc_num)
{
struct hnae3_handle *h = priv->ae_handle;
int i;

- h->kinfo.num_desc = new_desc_num;
+ h->kinfo.num_tx_desc = tx_desc_num;
+ h->kinfo.num_rx_desc = rx_desc_num;

- for (i = 0; i < h->kinfo.num_tqps * 2; i++)
- priv->ring_data[i].ring->desc_num = new_desc_num;
+ for (i = 0; i < h->kinfo.num_tqps; i++) {
+ priv->ring_data[i].ring->desc_num = tx_desc_num;
+ priv->ring_data[i + h->kinfo.num_tqps].ring->desc_num =
+ rx_desc_num;
+ }

return hns3_init_all_ring(priv);
}
@@ -767,7 +771,9 @@ static int hns3_set_ringparam(struct net_device *ndev,
struct hns3_nic_priv *priv = netdev_priv(ndev);
struct hnae3_handle *h = priv->ae_handle;
bool if_running = netif_running(ndev);
- u32 old_desc_num, new_desc_num;
+ u32 old_tx_desc_num, new_tx_desc_num;
+ u32 old_rx_desc_num, new_rx_desc_num;
+ int queue_num = h->kinfo.num_tqps;
int ret;

if (hns3_nic_resetting(ndev))
@@ -776,32 +782,28 @@ static int hns3_set_ringparam(struct net_device *ndev,
if (param->rx_mini_pending || param->rx_jumbo_pending)
return -EINVAL;

- if (param->tx_pending != param->rx_pending) {
- netdev_err(ndev,
- "Descriptors of tx and rx must be equal");
- return -EINVAL;
- }
-
if (param->tx_pending > HNS3_RING_MAX_PENDING ||
- param->tx_pending < HNS3_RING_MIN_PENDING) {
- netdev_err(ndev,
- "Descriptors requested (Tx/Rx: %d) out of range [%d-%d]\n",
- param->tx_pending, HNS3_RING_MIN_PENDING,
- HNS3_RING_MAX_PENDING);
+ param->tx_pending < HNS3_RING_MIN_PENDING ||
+ param->rx_pending > HNS3_RING_MAX_PENDING ||
+ param->rx_pending < HNS3_RING_MIN_PENDING) {
+ netdev_err(ndev, "Queue depth out of range [%d-%d]\n",
+ HNS3_RING_MIN_PENDING, HNS3_RING_MAX_PENDING);
return -EINVAL;
}

- new_desc_num = param->tx_pending;
-
/* Hardware requires that its descriptors must be multiple of eight */
- new_desc_num = ALIGN(new_desc_num, HNS3_RING_BD_MULTIPLE);
- old_desc_num = h->kinfo.num_desc;
- if (old_desc_num == new_desc_num)
+ new_tx_desc_num = ALIGN(param->tx_pending, HNS3_RING_BD_MULTIPLE);
+ new_rx_desc_num = ALIGN(param->rx_pending, HNS3_RING_BD_MULTIPLE);
+ old_tx_desc_num = priv->ring_data[0].ring->desc_num;
+ old_rx_desc_num = priv->ring_data[queue_num].ring->desc_num;
+ if (old_tx_desc_num == new_tx_desc_num &&
+ old_rx_desc_num == new_rx_desc_num)
return 0;

netdev_info(ndev,
- "Changing descriptor count from %d to %d.\n",
- old_desc_num, new_desc_num);
+ "Changing Tx/Rx ring depth from %d/%d to %d/%d\n",
+ old_tx_desc_num, old_rx_desc_num,
+ new_tx_desc_num, new_rx_desc_num);

if (if_running)
ndev->netdev_ops->ndo_stop(ndev);
@@ -810,9 +812,11 @@ static int hns3_set_ringparam(struct net_device *ndev,
if (ret)
return ret;

- ret = hns3_change_all_ring_bd_num(priv, new_desc_num);
+ ret = hns3_change_all_ring_bd_num(priv, new_tx_desc_num,
+ new_rx_desc_num);
if (ret) {
- ret = hns3_change_all_ring_bd_num(priv, old_desc_num);
+ ret = hns3_change_all_ring_bd_num(priv, old_tx_desc_num,
+ old_rx_desc_num);
if (ret) {
netdev_err(ndev,
"Revert to old bd num fail, ret=%d.\n", ret);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 5c8f2e4..f113439 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -1033,7 +1033,8 @@ static int hclge_configure(struct hclge_dev *hdev)
ether_addr_copy(hdev->hw.mac.mac_addr, cfg.mac_addr);
hdev->hw.mac.media_type = cfg.media_type;
hdev->hw.mac.phy_addr = cfg.phy_addr;
- hdev->num_desc = cfg.tqp_desc_num;
+ hdev->num_tx_desc = cfg.tqp_desc_num;
+ hdev->num_rx_desc = cfg.tqp_desc_num;
hdev->tm_info.num_pg = 1;
hdev->tc_max = cfg.tc_num;
hdev->tm_info.hw_pfc_map = 0;
@@ -1140,7 +1141,8 @@ static int hclge_alloc_tqps(struct hclge_dev *hdev)

tqp->q.ae_algo = &ae_algo;
tqp->q.buf_size = hdev->rx_buf_len;
- tqp->q.desc_num = hdev->num_desc;
+ tqp->q.tx_desc_num = hdev->num_tx_desc;
+ tqp->q.rx_desc_num = hdev->num_rx_desc;
tqp->q.io_base = hdev->hw.io_base + HCLGE_TQP_REG_OFFSET +
i * HCLGE_TQP_REG_SIZE;

@@ -1184,7 +1186,8 @@ static int hclge_assign_tqp(struct hclge_vport *vport, u16 num_tqps)
if (!hdev->htqp[i].alloced) {
hdev->htqp[i].q.handle = &vport->nic;
hdev->htqp[i].q.tqp_index = alloced;
- hdev->htqp[i].q.desc_num = kinfo->num_desc;
+ hdev->htqp[i].q.tx_desc_num = kinfo->num_tx_desc;
+ hdev->htqp[i].q.rx_desc_num = kinfo->num_rx_desc;
kinfo->tqp[alloced] = &hdev->htqp[i].q;
hdev->htqp[i].alloced = true;
alloced++;
@@ -1197,15 +1200,18 @@ static int hclge_assign_tqp(struct hclge_vport *vport, u16 num_tqps)
return 0;
}

-static int hclge_knic_setup(struct hclge_vport *vport,
- u16 num_tqps, u16 num_desc)
+static int hclge_knic_setup(struct hclge_vport *vport, u16 num_tqps,
+ u16 num_tx_desc, u16 num_rx_desc)
+
{
struct hnae3_handle *nic = &vport->nic;
struct hnae3_knic_private_info *kinfo = &nic->kinfo;
struct hclge_dev *hdev = vport->back;
int ret;

- kinfo->num_desc = num_desc;
+ kinfo->num_tx_desc = num_tx_desc;
+ kinfo->num_rx_desc = num_rx_desc;
+
kinfo->rx_buf_len = hdev->rx_buf_len;

kinfo->tqp = devm_kcalloc(&hdev->pdev->dev, num_tqps,
@@ -1279,7 +1285,9 @@ static int hclge_vport_setup(struct hclge_vport *vport, u16 num_tqps)
nic->numa_node_mask = hdev->numa_node_mask;

if (hdev->ae_dev->dev_type == HNAE3_DEV_KNIC) {
- ret = hclge_knic_setup(vport, num_tqps, hdev->num_desc);
+ ret = hclge_knic_setup(vport, num_tqps,
+ hdev->num_tx_desc, hdev->num_rx_desc);
+
if (ret) {
dev_err(&hdev->pdev->dev, "knic setup failed %d\n",
ret);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index abbc58e..b57ac4b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -706,7 +706,8 @@ struct hclge_dev {
u16 num_alloc_vport; /* Num vports this driver supports */
u32 numa_node_mask;
u16 rx_buf_len;
- u16 num_desc;
+ u16 num_tx_desc; /* desc num of per tx queue */
+ u16 num_rx_desc; /* desc num of per rx queue */
u8 hw_tc_map;
u8 tc_num_last_time;
enum hclge_fc_mode fc_mode_last_time;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index 9e0952c..ca056b3 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -357,20 +357,34 @@ static int hclge_get_vf_queue_info(struct hclge_vport *vport,
struct hclge_mbx_vf_to_pf_cmd *mbx_req,
bool gen_resp)
{
-#define HCLGE_TQPS_RSS_INFO_LEN 8
+#define HCLGE_TQPS_RSS_INFO_LEN 6
u8 resp_data[HCLGE_TQPS_RSS_INFO_LEN];
struct hclge_dev *hdev = vport->back;

/* get the queue related info */
memcpy(&resp_data[0], &vport->alloc_tqps, sizeof(u16));
memcpy(&resp_data[2], &vport->nic.kinfo.rss_size, sizeof(u16));
- memcpy(&resp_data[4], &hdev->num_desc, sizeof(u16));
- memcpy(&resp_data[6], &hdev->rx_buf_len, sizeof(u16));
+ memcpy(&resp_data[4], &hdev->rx_buf_len, sizeof(u16));

return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data,
HCLGE_TQPS_RSS_INFO_LEN);
}

+static int hclge_get_vf_queue_depth(struct hclge_vport *vport,
+ struct hclge_mbx_vf_to_pf_cmd *mbx_req,
+ bool gen_resp)
+{
+#define HCLGE_TQPS_DEPTH_INFO_LEN 4
+ u8 resp_data[HCLGE_TQPS_DEPTH_INFO_LEN];
+ struct hclge_dev *hdev = vport->back;
+
+ /* get the queue depth info */
+ memcpy(&resp_data[0], &hdev->num_tx_desc, sizeof(u16));
+ memcpy(&resp_data[2], &hdev->num_rx_desc, sizeof(u16));
+ return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data,
+ HCLGE_TQPS_DEPTH_INFO_LEN);
+}
+
static int hclge_get_link_info(struct hclge_vport *vport,
struct hclge_mbx_vf_to_pf_cmd *mbx_req)
{
@@ -567,6 +581,14 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
"PF failed(%d) to get Q info for VF\n",
ret);
break;
+ case HCLGE_MBX_GET_QDEPTH:
+ ret = hclge_get_vf_queue_depth(vport, req, true);
+ if (ret)
+ dev_err(&hdev->pdev->dev,
+ "PF failed(%d) to get Q depth for VF\n",
+ ret);
+ break;
+
case HCLGE_MBX_GET_TCINFO:
ret = hclge_get_vf_tcinfo(vport, req, true);
if (ret)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 4a897cf..12f16b9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -247,7 +247,7 @@ static int hclgevf_get_tc_info(struct hclgevf_dev *hdev)

static int hclgevf_get_queue_info(struct hclgevf_dev *hdev)
{
-#define HCLGEVF_TQPS_RSS_INFO_LEN 8
+#define HCLGEVF_TQPS_RSS_INFO_LEN 6
u8 resp_msg[HCLGEVF_TQPS_RSS_INFO_LEN];
int status;

@@ -263,8 +263,29 @@ static int hclgevf_get_queue_info(struct hclgevf_dev *hdev)

memcpy(&hdev->num_tqps, &resp_msg[0], sizeof(u16));
memcpy(&hdev->rss_size_max, &resp_msg[2], sizeof(u16));
- memcpy(&hdev->num_desc, &resp_msg[4], sizeof(u16));
- memcpy(&hdev->rx_buf_len, &resp_msg[6], sizeof(u16));
+ memcpy(&hdev->rx_buf_len, &resp_msg[4], sizeof(u16));
+
+ return 0;
+}
+
+static int hclgevf_get_queue_depth(struct hclgevf_dev *hdev)
+{
+#define HCLGEVF_TQPS_DEPTH_INFO_LEN 4
+ u8 resp_msg[HCLGEVF_TQPS_DEPTH_INFO_LEN];
+ int ret;
+
+ ret = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_QDEPTH, 0, NULL, 0,
+ true, resp_msg,
+ HCLGEVF_TQPS_DEPTH_INFO_LEN);
+ if (ret) {
+ dev_err(&hdev->pdev->dev,
+ "VF request to get tqp depth info from PF failed %d",
+ ret);
+ return ret;
+ }
+
+ memcpy(&hdev->num_tx_desc, &resp_msg[0], sizeof(u16));
+ memcpy(&hdev->num_rx_desc, &resp_msg[2], sizeof(u16));

return 0;
}
@@ -304,7 +325,8 @@ static int hclgevf_alloc_tqps(struct hclgevf_dev *hdev)

tqp->q.ae_algo = &ae_algovf;
tqp->q.buf_size = hdev->rx_buf_len;
- tqp->q.desc_num = hdev->num_desc;
+ tqp->q.tx_desc_num = hdev->num_tx_desc;
+ tqp->q.rx_desc_num = hdev->num_rx_desc;
tqp->q.io_base = hdev->hw.io_base + HCLGEVF_TQP_REG_OFFSET +
i * HCLGEVF_TQP_REG_SIZE;

@@ -323,7 +345,8 @@ static int hclgevf_knic_setup(struct hclgevf_dev *hdev)

kinfo = &nic->kinfo;
kinfo->num_tc = 0;
- kinfo->num_desc = hdev->num_desc;
+ kinfo->num_tx_desc = hdev->num_tx_desc;
+ kinfo->num_rx_desc = hdev->num_rx_desc;
kinfo->rx_buf_len = hdev->rx_buf_len;
for (i = 0; i < HCLGEVF_MAX_TC_NUM; i++)
if (hdev->hw_tc_map & BIT(i))
@@ -1747,6 +1770,12 @@ static int hclgevf_configure(struct hclgevf_dev *hdev)
ret = hclgevf_get_queue_info(hdev);
if (ret)
return ret;
+
+ /* get queue depth info from PF */
+ ret = hclgevf_get_queue_depth(hdev);
+ if (ret)
+ return ret;
+
/* get tc configuration from PF */
return hclgevf_get_tc_info(hdev);
}
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
index eba1118..c128863 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
@@ -239,7 +239,8 @@ struct hclgevf_dev {
u16 num_alloc_vport; /* num vports this driver supports */
u32 numa_node_mask;
u16 rx_buf_len;
- u16 num_desc;
+ u16 num_tx_desc; /* desc num of per tx queue */
+ u16 num_rx_desc; /* desc num of per rx queue */
u8 hw_tc_map;

u16 num_msi;
--
2.7.4
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