@@ -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
@@ -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);
- shared_buf_min = 2 * hdev->mps + HCLGE_DEFAULT_DV;
+ 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;
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: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support") Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h | 1 + drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 6 +++++- 2 files changed, 6 insertions(+), 1 deletion(-)