Commit 5ac84b02 authored by Huazhong Tan's avatar Huazhong Tan Committed by Jakub Kicinski
Browse files

net: hns3: add support for 1us unit GL configuration 



For device whose version is above V3(include V3), the GL
configuration can set as 1us unit, so adds support for
configuring this field.

Signed-off-by: default avatarHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent ab16b49c

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

+22 −4
Original line number Diff line number Diff line
@@ -224,17 +224,27 @@ void hns3_set_vector_coalesce_rl(struct hns3_enet_tqp_vector *tqp_vector, 
void hns3_set_vector_coalesce_rx_gl(struct hns3_enet_tqp_vector *tqp_vector,

				    u32 gl_value)

{

	u32 rx_gl_reg = hns3_gl_usec_to_reg(gl_value);

	u32 new_val;



	writel(rx_gl_reg, tqp_vector->mask_addr + HNS3_VECTOR_GL0_OFFSET);

	if (tqp_vector->rx_group.coal.unit_1us)

		new_val = gl_value | HNS3_INT_GL_1US;

	else

		new_val = hns3_gl_usec_to_reg(gl_value);



	writel(new_val, tqp_vector->mask_addr + HNS3_VECTOR_GL0_OFFSET);

}



void hns3_set_vector_coalesce_tx_gl(struct hns3_enet_tqp_vector *tqp_vector,

				    u32 gl_value)

{

	u32 tx_gl_reg = hns3_gl_usec_to_reg(gl_value);

	u32 new_val;



	if (tqp_vector->tx_group.coal.unit_1us)

		new_val = gl_value | HNS3_INT_GL_1US;

	else

		new_val = hns3_gl_usec_to_reg(gl_value);



	writel(tx_gl_reg, tqp_vector->mask_addr + HNS3_VECTOR_GL1_OFFSET);

	writel(new_val, tqp_vector->mask_addr + HNS3_VECTOR_GL1_OFFSET);

}



void hns3_set_vector_coalesce_tx_ql(struct hns3_enet_tqp_vector *tqp_vector,
@@ -272,6 +282,14 @@ static void hns3_vector_coalesce_init(struct hns3_enet_tqp_vector *tqp_vector, 
	rx_coal->flow_level = HNS3_FLOW_LOW;

	tx_coal->flow_level = HNS3_FLOW_LOW;



	/* device version above V3(include V3), GL can configure 1us

	 * unit, so uses 1us unit.

	 */

	if (ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3) {

		tx_coal->unit_1us = 1;

		rx_coal->unit_1us = 1;

	}



	if (ae_dev->dev_specs.int_ql_max) {

		tx_coal->ql_enable = 1;

		rx_coal->ql_enable = 1;

drivers/net/ethernet/hisilicon/hns3/hns3_enet.h

+3 −0
Original line number Diff line number Diff line
@@ -425,6 +425,8 @@ enum hns3_flow_level_range { 
#define HNS3_INT_GL_18K			0x0036

#define HNS3_INT_GL_8K			0x007C



#define HNS3_INT_GL_1US			BIT(31)



#define HNS3_INT_RL_MAX			0x00EC

#define HNS3_INT_RL_ENABLE_MASK		0x40
@@ -436,6 +438,7 @@ struct hns3_enet_coalesce { 
	u16 int_ql_max;

	u8 gl_adapt_enable:1;

	u8 ql_enable:1;

	u8 unit_1us:1;

	enum hns3_flow_level_range flow_level;

};

drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c

+6 −0
Original line number Diff line number Diff line
@@ -1148,6 +1148,12 @@ static int hns3_check_gl_coalesce_para(struct net_device *netdev, 
		return -EINVAL;

	}



	/* device version above V3(include V3), GL uses 1us unit,

	 * so the round down is not needed.

	 */

	if (ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3)

		return 0;



	rx_gl = hns3_gl_round_down(cmd->rx_coalesce_usecs);

	if (rx_gl != cmd->rx_coalesce_usecs) {

		netdev_info(netdev,

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