net: hns3: Fix for DEFAULT_DV when dev doesn't support DCB (d221df4e) · Commits · 戴 / test

When ae_dev doesn't support DCB, DEFAULT_DV must be set to a lower value, otherwise the buffer allocation process will fail. This patch fix it by setting it to 30K bytes. Fixes: ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support") Signed-off-by:

Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by:

David S. Miller <davem@davemloft.net>

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

+1 −0

Original line number	Diff line number	Diff line
		@@ -688,6 +688,7 @@ struct hclge_reset_tqp_queue {
		#define HCLGE_DEFAULT_TX_BUF 0x4000 /* 16k bytes */
		#define HCLGE_TOTAL_PKT_BUF 0x108000 /* 1.03125M bytes */
		#define HCLGE_DEFAULT_DV 0xA000 /* 40k byte */
		#define HCLGE_DEFAULT_NON_DCB_DV 0x7800 /* 30K byte */

		#define HCLGE_TYPE_CRQ 0
		#define HCLGE_TYPE_CSQ 1

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -1444,7 +1444,11 @@ static bool hclge_is_rx_buf_ok(struct hclge_dev *hdev, u32 rx_all)
		tc_num = hclge_get_tc_num(hdev);
		pfc_enable_num = hclge_get_pfc_enalbe_num(hdev);

		if (hnae3_dev_dcb_supported(hdev))
		shared_buf_min = 2 * hdev->mps + HCLGE_DEFAULT_DV;
		else
		shared_buf_min = 2 * hdev->mps + HCLGE_DEFAULT_NON_DCB_DV;

		shared_buf_tc = pfc_enable_num * hdev->mps +
		(tc_num - pfc_enable_num) * hdev->mps / 2 +
		hdev->mps;

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