Commit e070c8b9 authored by Yufeng Mo's avatar Yufeng Mo Committed by Jakub Kicinski
Browse files

net: hns3: add support for obtaining the maximum frame size 



Since the newer hardware may supports different frame size,
so add support to obtain the capability from the firmware
instead of the fixed value.

Signed-off-by: default avatarYufeng Mo <moyufeng@huawei.com>
Signed-off-by: default avatarHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 693e4415

drivers/net/ethernet/hisilicon/hns3/hnae3.h

+1 −0
Original line number Diff line number Diff line
@@ -284,6 +284,7 @@ struct hnae3_dev_specs { 
	u16 int_ql_max; /* max value of interrupt coalesce based on INT_QL */

	u16 max_int_gl; /* max value of interrupt coalesce based on INT_GL */

	u8 max_non_tso_bd_num; /* max BD number of one non-TSO packet */

	u16 max_frm_size;

};



struct hnae3_client_ops {

drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c

+1 −0
Original line number Diff line number Diff line
@@ -389,6 +389,7 @@ static void hns3_dbg_dev_specs(struct hnae3_handle *h) 
		 kinfo->tc_info.num_tc);

	dev_info(priv->dev, "MAX INT QL: %u\n", dev_specs->int_ql_max);

	dev_info(priv->dev, "MAX INT GL: %u\n", dev_specs->max_int_gl);

	dev_info(priv->dev, "MAX frame size: %u\n", dev_specs->max_frm_size);

}



static ssize_t hns3_dbg_cmd_read(struct file *filp, char __user *buffer,

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

+1 −2
Original line number Diff line number Diff line
@@ -4281,8 +4281,7 @@ static int hns3_client_init(struct hnae3_handle *handle) 


	hns3_dbg_init(handle);



	/* MTU range: (ETH_MIN_MTU(kernel default) - 9702) */

	netdev->max_mtu = HNS3_MAX_MTU;

	netdev->max_mtu = HNS3_MAX_MTU(ae_dev->dev_specs.max_frm_size);



	if (test_bit(HNAE3_DEV_SUPPORT_HW_TX_CSUM_B, ae_dev->caps))

		set_bit(HNS3_NIC_STATE_HW_TX_CSUM_ENABLE, &priv->state);

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

+2 −3
Original line number Diff line number Diff line
@@ -56,9 +56,8 @@ enum hns3_nic_state { 
#define HNS3_RING_MIN_PENDING			72

#define HNS3_RING_BD_MULTIPLE			8

/* max frame size of mac */

#define HNS3_MAC_MAX_FRAME			9728

#define HNS3_MAX_MTU \

	(HNS3_MAC_MAX_FRAME - (ETH_HLEN + ETH_FCS_LEN + 2 * VLAN_HLEN))

#define HNS3_MAX_MTU(max_frm_size) \

	((max_frm_size) - (ETH_HLEN + ETH_FCS_LEN + 2 * VLAN_HLEN))



#define HNS3_BD_SIZE_512_TYPE			0

#define HNS3_BD_SIZE_1024_TYPE			1

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h

+2 −1
Original line number Diff line number Diff line
@@ -1131,7 +1131,8 @@ struct hclge_dev_specs_0_cmd { 
#define HCLGE_DEF_MAX_INT_GL		0x1FE0U



struct hclge_dev_specs_1_cmd {

	__le32 rsv0;

	__le16 max_frm_size;

	__le16 rsv0;

	__le16 max_int_gl;

	u8 rsv1[18];

};