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From: Howard Wang <howard_wang@realsil.com.cn>
To: <dev@dpdk.org>
Cc: <pro_nic_dpdk@realtek.com>, Howard Wang <howard_wang@realsil.com.cn>
Subject: [PATCH v1 05/12] net/r8169: adjust jumbo frame size limit for non-1G cards
Date: Mon, 9 Feb 2026 16:54:55 +0800	[thread overview]
Message-ID: <20260209085502.26722-6-howard_wang@realsil.com.cn> (raw)
In-Reply-To: <20260209085502.26722-1-howard_wang@realsil.com.cn>

For 8125A, set the max size to (16K - 1).
For other non-1G cards, set the max size to 16K.

Signed-off-by: Howard Wang <howard_wang@realsil.com.cn>
---
 drivers/net/r8169/r8169_compat.h |  1 +
 drivers/net/r8169/r8169_ethdev.c | 23 ++++++++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/drivers/net/r8169/r8169_compat.h b/drivers/net/r8169/r8169_compat.h
index d2d928cdd7..673a1ca274 100644
--- a/drivers/net/r8169/r8169_compat.h
+++ b/drivers/net/r8169/r8169_compat.h
@@ -617,6 +617,7 @@ enum RTL_chipset_name {
  */
 #define RTL_ETH_OVERHEAD (RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN + VLAN_TAG_SIZE)
 #define JUMBO_FRAME_9K  (9 * 1024 - RTE_ETHER_HDR_LEN - RTE_VLAN_HLEN - RTE_ETHER_CRC_LEN)
+#define JUMBO_FRAME_16K  (16 * 1024 - RTE_ETHER_HDR_LEN - RTE_VLAN_HLEN - RTE_ETHER_CRC_LEN)
 
 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL << (n)) - 1))
 
diff --git a/drivers/net/r8169/r8169_ethdev.c b/drivers/net/r8169/r8169_ethdev.c
index f620154bf0..8e46ce09a1 100644
--- a/drivers/net/r8169/r8169_ethdev.c
+++ b/drivers/net/r8169/r8169_ethdev.c
@@ -412,9 +412,30 @@ rtl_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 	struct rtl_hw *hw = &adapter->hw;
 
 	dev_info->min_rx_bufsize = 1024;
-	dev_info->max_rx_pktlen = JUMBO_FRAME_9K;
 	dev_info->max_mac_addrs = 1;
 
+	switch (hw->mcfg) {
+	case CFG_METHOD_48:
+	case CFG_METHOD_49:
+		dev_info->max_rx_pktlen = JUMBO_FRAME_16K - 1;
+		break;
+	case CFG_METHOD_50:
+	case CFG_METHOD_51:
+	case CFG_METHOD_54:
+	case CFG_METHOD_55:
+	case CFG_METHOD_56:
+	case CFG_METHOD_57:
+	case CFG_METHOD_58:
+	case CFG_METHOD_70:
+	case CFG_METHOD_71:
+	case CFG_METHOD_91:
+		dev_info->max_rx_pktlen = JUMBO_FRAME_16K;
+		break;
+	default:
+		dev_info->max_rx_pktlen = JUMBO_FRAME_9K;
+		break;
+	}
+
 	if (hw->mcfg >= CFG_METHOD_69) {
 		dev_info->max_rx_queues = 4;
 		dev_info->max_tx_queues = 2;
-- 
2.34.1


  parent reply	other threads:[~2026-02-09  8:56 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-09  8:54 [PATCH v1 00/12] net/r8169: update driver with new HW support and fixes Howard Wang
2026-02-09  8:54 ` [PATCH v1 01/12] net/r8169: fix NULL pointer dereference in rtl8168fp_ops Howard Wang
2026-02-09  8:54 ` [PATCH v1 02/12] net/r8169: tune RX desc fetch num for 8126 and 8127 Howard Wang
2026-02-09  8:54 ` [PATCH v1 03/12] net/r8169: add support for RTL8168KD Howard Wang
2026-02-09  8:54 ` [PATCH v1 04/12] net/r8169: update hardware configurations for 8127 Howard Wang
2026-02-09  8:54 ` Howard Wang [this message]
2026-02-09  8:54 ` [PATCH v1 06/12] net/r8169: remove support for CFG_METHOD_69 Howard Wang
2026-02-09  8:54 ` [PATCH v1 07/12] net/r8169: update hardware configurations for 8126 Howard Wang
2026-02-09  8:54 ` [PATCH v1 08/12] net/r8169: update hardware configurations for 8125 Howard Wang
2026-02-09  8:54 ` [PATCH v1 09/12] net/r8169: add support for RTL9151 Howard Wang
2026-02-09  8:55 ` [PATCH v1 10/12] net/r8169: add support for RTL8125K Howard Wang
2026-02-09  8:55 ` [PATCH v1 11/12] net/r8169: fix one bug about RTL8168KB Howard Wang
2026-02-09  8:55 ` [PATCH v1 12/12] net/r8169: ensure the old mapping is used Howard Wang
2026-02-09 19:26 ` [PATCH v1 00/12] net/r8169: update driver with new HW support and fixes Stephen Hemminger
2026-02-09 19:44 ` Stephen Hemminger

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