From: Luo bin <luobin9@huawei.com>
Date: Wed, 13 May 2020 22:37:33 +0000
Subject: hinic: add set_ringparam ethtool_ops support
Patch-mainline: v5.8-rc1
Git-commit: bcab67822d77142c31f69656dd24226f23acc82e
References: bsc#1176447
support to change TX/RX queue depth with ethtool -G
Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/huawei/hinic/hinic_dev.h | 2
drivers/net/ethernet/huawei/hinic/hinic_ethtool.c | 78 ++++++++++++++++++++--
drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c | 11 +--
drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h | 2
drivers/net/ethernet/huawei/hinic/hinic_hw_io.c | 4 -
drivers/net/ethernet/huawei/hinic/hinic_hw_io.h | 3
drivers/net/ethernet/huawei/hinic/hinic_hw_qp.c | 1
drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h | 3
drivers/net/ethernet/huawei/hinic/hinic_main.c | 9 +-
drivers/net/ethernet/huawei/hinic/hinic_port.c | 2
drivers/net/ethernet/huawei/hinic/hinic_port.h | 4 +
11 files changed, 104 insertions(+), 15 deletions(-)
--- a/drivers/net/ethernet/huawei/hinic/hinic_dev.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_dev.h
@@ -69,6 +69,8 @@ struct hinic_dev {
struct hinic_txq *txqs;
struct hinic_rxq *rxqs;
+ u16 sq_depth;
+ u16 rq_depth;
struct hinic_txq_stats tx_stats;
struct hinic_rxq_stats rx_stats;
--- a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
@@ -538,12 +538,81 @@ static void hinic_get_drvinfo(struct net
static void hinic_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
- ring->rx_max_pending = HINIC_RQ_DEPTH;
- ring->tx_max_pending = HINIC_SQ_DEPTH;
- ring->rx_pending = HINIC_RQ_DEPTH;
- ring->tx_pending = HINIC_SQ_DEPTH;
+ struct hinic_dev *nic_dev = netdev_priv(netdev);
+
+ ring->rx_max_pending = HINIC_MAX_QUEUE_DEPTH;
+ ring->tx_max_pending = HINIC_MAX_QUEUE_DEPTH;
+ ring->rx_pending = nic_dev->rq_depth;
+ ring->tx_pending = nic_dev->sq_depth;
}
+static int check_ringparam_valid(struct hinic_dev *nic_dev,
+ struct ethtool_ringparam *ring)
+{
+ if (ring->rx_jumbo_pending || ring->rx_mini_pending) {
+ netif_err(nic_dev, drv, nic_dev->netdev,
+ "Unsupported rx_jumbo_pending/rx_mini_pending\n");
+ return -EINVAL;
+ }
+
+ if (ring->tx_pending > HINIC_MAX_QUEUE_DEPTH ||
+ ring->tx_pending < HINIC_MIN_QUEUE_DEPTH ||
+ ring->rx_pending > HINIC_MAX_QUEUE_DEPTH ||
+ ring->rx_pending < HINIC_MIN_QUEUE_DEPTH) {
+ netif_err(nic_dev, drv, nic_dev->netdev,
+ "Queue depth out of range [%d-%d]\n",
+ HINIC_MIN_QUEUE_DEPTH, HINIC_MAX_QUEUE_DEPTH);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int hinic_set_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct hinic_dev *nic_dev = netdev_priv(netdev);
+ u16 new_sq_depth, new_rq_depth;
+ int err;
+
+ err = check_ringparam_valid(nic_dev, ring);
+ if (err)
+ return err;
+
+ new_sq_depth = (u16)(1U << (u16)ilog2(ring->tx_pending));
+ new_rq_depth = (u16)(1U << (u16)ilog2(ring->rx_pending));
+
+ if (new_sq_depth == nic_dev->sq_depth &&
+ new_rq_depth == nic_dev->rq_depth)
+ return 0;
+
+ netif_info(nic_dev, drv, netdev,
+ "Change Tx/Rx ring depth from %d/%d to %d/%d\n",
+ nic_dev->sq_depth, nic_dev->rq_depth,
+ new_sq_depth, new_rq_depth);
+
+ nic_dev->sq_depth = new_sq_depth;
+ nic_dev->rq_depth = new_rq_depth;
+
+ if (netif_running(netdev)) {
+ netif_info(nic_dev, drv, netdev, "Restarting netdev\n");
+ err = hinic_close(netdev);
+ if (err) {
+ netif_err(nic_dev, drv, netdev,
+ "Failed to close netdev\n");
+ return -EFAULT;
+ }
+
+ err = hinic_open(netdev);
+ if (err) {
+ netif_err(nic_dev, drv, netdev,
+ "Failed to open netdev\n");
+ return -EFAULT;
+ }
+ }
+
+ return 0;
+}
static void hinic_get_channels(struct net_device *netdev,
struct ethtool_channels *channels)
{
@@ -1148,6 +1217,7 @@ static const struct ethtool_ops hinic_et
.get_drvinfo = hinic_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_ringparam = hinic_get_ringparam,
+ .set_ringparam = hinic_set_ringparam,
.get_channels = hinic_get_channels,
.get_rxnfc = hinic_get_rxnfc,
.set_rxnfc = hinic_set_rxnfc,
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c
@@ -269,8 +269,8 @@ static int init_fw_ctxt(struct hinic_hwd
*
* Return 0 - Success, negative - Failure
**/
-static int set_hw_ioctxt(struct hinic_hwdev *hwdev, unsigned int rq_depth,
- unsigned int sq_depth)
+static int set_hw_ioctxt(struct hinic_hwdev *hwdev, unsigned int sq_depth,
+ unsigned int rq_depth)
{
struct hinic_hwif *hwif = hwdev->hwif;
struct hinic_cmd_hw_ioctxt hw_ioctxt;
@@ -435,7 +435,7 @@ static int get_base_qpn(struct hinic_hwd
*
* Return 0 - Success, negative - Failure
**/
-int hinic_hwdev_ifup(struct hinic_hwdev *hwdev)
+int hinic_hwdev_ifup(struct hinic_hwdev *hwdev, u16 sq_depth, u16 rq_depth)
{
struct hinic_func_to_io *func_to_io = &hwdev->func_to_io;
struct hinic_cap *nic_cap = &hwdev->nic_cap;
@@ -458,6 +458,9 @@ int hinic_hwdev_ifup(struct hinic_hwdev
ceq_msix_entries = &hwdev->msix_entries[num_aeqs];
func_to_io->hwdev = hwdev;
+ func_to_io->sq_depth = sq_depth;
+ func_to_io->rq_depth = rq_depth;
+
err = hinic_io_init(func_to_io, hwif, nic_cap->max_qps, num_ceqs,
ceq_msix_entries);
if (err) {
@@ -482,7 +485,7 @@ int hinic_hwdev_ifup(struct hinic_hwdev
hinic_db_state_set(hwif, HINIC_DB_ENABLE);
}
- err = set_hw_ioctxt(hwdev, HINIC_SQ_DEPTH, HINIC_RQ_DEPTH);
+ err = set_hw_ioctxt(hwdev, sq_depth, rq_depth);
if (err) {
dev_err(&pdev->dev, "Failed to set HW IO ctxt\n");
goto err_hw_ioctxt;
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h
@@ -347,7 +347,7 @@ int hinic_hilink_msg_cmd(struct hinic_hw
void *buf_in, u16 in_size, void *buf_out,
u16 *out_size);
-int hinic_hwdev_ifup(struct hinic_hwdev *hwdev);
+int hinic_hwdev_ifup(struct hinic_hwdev *hwdev, u16 sq_depth, u16 rq_depth);
void hinic_hwdev_ifdown(struct hinic_hwdev *hwdev);
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.c
@@ -282,7 +282,7 @@ static int init_qp(struct hinic_func_to_
err = hinic_wq_allocate(&func_to_io->wqs, &func_to_io->sq_wq[q_id],
HINIC_SQ_WQEBB_SIZE, HINIC_SQ_PAGE_SIZE,
- HINIC_SQ_DEPTH, HINIC_SQ_WQE_MAX_SIZE);
+ func_to_io->sq_depth, HINIC_SQ_WQE_MAX_SIZE);
if (err) {
dev_err(&pdev->dev, "Failed to allocate WQ for SQ\n");
return err;
@@ -290,7 +290,7 @@ static int init_qp(struct hinic_func_to_
err = hinic_wq_allocate(&func_to_io->wqs, &func_to_io->rq_wq[q_id],
HINIC_RQ_WQEBB_SIZE, HINIC_RQ_PAGE_SIZE,
- HINIC_RQ_DEPTH, HINIC_RQ_WQE_SIZE);
+ func_to_io->rq_depth, HINIC_RQ_WQE_SIZE);
if (err) {
dev_err(&pdev->dev, "Failed to allocate WQ for RQ\n");
goto err_rq_alloc;
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h
@@ -60,6 +60,9 @@ struct hinic_func_to_io {
struct hinic_qp *qps;
u16 max_qps;
+ u16 sq_depth;
+ u16 rq_depth;
+
void __iomem **sq_db;
void __iomem *db_base;
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.c
@@ -643,6 +643,7 @@ void hinic_sq_write_db(struct hinic_sq *
/* increment prod_idx to the next */
prod_idx += ALIGN(wqe_size, wq->wqebb_size) / wq->wqebb_size;
+ prod_idx = SQ_MASKED_IDX(sq, prod_idx);
wmb(); /* Write all before the doorbell */
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h
@@ -44,6 +44,9 @@
#define HINIC_SQ_DEPTH SZ_4K
#define HINIC_RQ_DEPTH SZ_4K
+#define HINIC_MAX_QUEUE_DEPTH SZ_4K
+#define HINIC_MIN_QUEUE_DEPTH 128
+
/* In any change to HINIC_RX_BUF_SZ, HINIC_RX_BUF_SZ_IDX must be changed */
#define HINIC_RX_BUF_SZ 2048
#define HINIC_RX_BUF_SZ_IDX HINIC_RX_BUF_SZ_2048_IDX
--- a/drivers/net/ethernet/huawei/hinic/hinic_main.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c
@@ -372,14 +372,15 @@ static void hinic_enable_rss(struct hini
netif_err(nic_dev, drv, netdev, "Failed to init rss\n");
}
-static int hinic_open(struct net_device *netdev)
+int hinic_open(struct net_device *netdev)
{
struct hinic_dev *nic_dev = netdev_priv(netdev);
enum hinic_port_link_state link_state;
int err, ret;
if (!(nic_dev->flags & HINIC_INTF_UP)) {
- err = hinic_hwdev_ifup(nic_dev->hwdev);
+ err = hinic_hwdev_ifup(nic_dev->hwdev, nic_dev->sq_depth,
+ nic_dev->rq_depth);
if (err) {
netif_err(nic_dev, drv, netdev,
"Failed - HW interface up\n");
@@ -483,7 +484,7 @@ err_create_txqs:
return err;
}
-static int hinic_close(struct net_device *netdev)
+int hinic_close(struct net_device *netdev)
{
struct hinic_dev *nic_dev = netdev_priv(netdev);
unsigned int flags;
@@ -1026,6 +1027,8 @@ static int nic_dev_init(struct pci_dev *
nic_dev->rxqs = NULL;
nic_dev->tx_weight = tx_weight;
nic_dev->rx_weight = rx_weight;
+ nic_dev->sq_depth = HINIC_SQ_DEPTH;
+ nic_dev->rq_depth = HINIC_RQ_DEPTH;
nic_dev->sriov_info.hwdev = hwdev;
nic_dev->sriov_info.pdev = pdev;
--- a/drivers/net/ethernet/huawei/hinic/hinic_port.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_port.c
@@ -473,7 +473,7 @@ int hinic_set_max_qnum(struct hinic_dev
rq_num.func_id = HINIC_HWIF_FUNC_IDX(hwif);
rq_num.num_rqs = num_rqs;
- rq_num.rq_depth = ilog2(HINIC_SQ_DEPTH);
+ rq_num.rq_depth = ilog2(nic_dev->rq_depth);
err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_SET_RQ_IQ_MAP,
&rq_num, sizeof(rq_num),
--- a/drivers/net/ethernet/huawei/hinic/hinic_port.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_port.h
@@ -736,4 +736,8 @@ int hinic_get_hw_pause_info(struct hinic
int hinic_set_hw_pause_info(struct hinic_hwdev *hwdev,
struct hinic_pause_config *pause_info);
+int hinic_open(struct net_device *netdev);
+
+int hinic_close(struct net_device *netdev);
+
#endif