[dpdk-stable] patch 'net/i40e: fix jumbo frame flag condition' has been queued to stable release 20.11.1

luca.boccassi at gmail.com luca.boccassi at gmail.com
Fri Feb 5 12:17:15 CET 2021


Hi,

FYI, your patch has been queued to stable release 20.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/07/21. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/e4eafd1fe30bd40ebef6d4392868289b1ff102f1

Thanks.

Luca Boccassi

---
>From e4eafd1fe30bd40ebef6d4392868289b1ff102f1 Mon Sep 17 00:00:00 2001
From: Steve Yang <stevex.yang at intel.com>
Date: Mon, 18 Jan 2021 07:04:13 +0000
Subject: [PATCH] net/i40e: fix jumbo frame flag condition

[ upstream commit c12f0976cb2e915ab7c93a46310ba826ffb5496b ]

The jumbo frame uses the 'RTE_ETHER_MAX_LEN' as boundary condition,
but the Ether overhead is larger than 18 when it supports dual VLAN tags.
That will cause the jumbo flag rx offload is wrong when MTU size is
'RTE_ETHER_MTU'.

This fix will change the boundary condition with 'RTE_ETHER_MTU' and
overhead, that perhaps impacts the cases of the jumbo frame related.

Fixes: c1715402df8f ("i40evf: fix jumbo frame support")
Fixes: 43e5488c0ac6 ("net/i40e: support MTU configuration")
Fixes: a778a1fa2e4e ("i40e: set up and initialize flow director")
Fixes: c3ac7c5b0b8a ("net/i40e: convert to new Rx offloads API")

Signed-off-by: Steve Yang <stevex.yang at intel.com>
Acked-by: Jeff Guo <jia.guo at intel.com>
---
 drivers/net/i40e/i40e_ethdev.c    |  2 +-
 drivers/net/i40e/i40e_ethdev.h    |  1 +
 drivers/net/i40e/i40e_ethdev_vf.c | 10 +++++-----
 drivers/net/i40e/i40e_fdir.c      |  2 +-
 drivers/net/i40e/i40e_rxtx.c      |  8 ++++----
 5 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 213fb99ca9..ef4f28fe53 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -11782,7 +11782,7 @@ i40e_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 		return -EBUSY;
 	}
 
-	if (frame_size > RTE_ETHER_MAX_LEN)
+	if (frame_size > I40E_ETH_MAX_LEN)
 		dev_data->dev_conf.rxmode.offloads |=
 			DEV_RX_OFFLOAD_JUMBO_FRAME;
 	else
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index aac226999c..20d051db8b 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -281,6 +281,7 @@ struct rte_flow {
  */
 #define I40E_ETH_OVERHEAD \
 	(RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN + I40E_VLAN_TAG_SIZE * 2)
+#define I40E_ETH_MAX_LEN (RTE_ETHER_MTU + I40E_ETH_OVERHEAD)
 
 #define I40E_RXTX_BYTES_H_16_BIT(bytes) ((bytes) & ~I40E_48_BIT_MASK)
 #define I40E_RXTX_BYTES_L_48_BIT(bytes) ((bytes) & I40E_48_BIT_MASK)
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index dc076ae552..bca8cb80e4 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -1899,22 +1899,22 @@ i40evf_rxq_init(struct rte_eth_dev *dev, struct i40e_rx_queue *rxq)
 	 * Check if the jumbo frame and maximum packet length are set correctly
 	 */
 	if (dev_data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
-		if (rxq->max_pkt_len <= RTE_ETHER_MAX_LEN ||
+		if (rxq->max_pkt_len <= I40E_ETH_MAX_LEN ||
 		    rxq->max_pkt_len > I40E_FRAME_SIZE_MAX) {
 			PMD_DRV_LOG(ERR, "maximum packet length must be "
 				"larger than %u and smaller than %u, as jumbo "
-				"frame is enabled", (uint32_t)RTE_ETHER_MAX_LEN,
+				"frame is enabled", (uint32_t)I40E_ETH_MAX_LEN,
 					(uint32_t)I40E_FRAME_SIZE_MAX);
 			return I40E_ERR_CONFIG;
 		}
 	} else {
 		if (rxq->max_pkt_len < RTE_ETHER_MIN_LEN ||
-		    rxq->max_pkt_len > RTE_ETHER_MAX_LEN) {
+		    rxq->max_pkt_len > I40E_ETH_MAX_LEN) {
 			PMD_DRV_LOG(ERR, "maximum packet length must be "
 				"larger than %u and smaller than %u, as jumbo "
 				"frame is disabled",
 				(uint32_t)RTE_ETHER_MIN_LEN,
-				(uint32_t)RTE_ETHER_MAX_LEN);
+				(uint32_t)I40E_ETH_MAX_LEN);
 			return I40E_ERR_CONFIG;
 		}
 	}
@@ -2836,7 +2836,7 @@ i40evf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 		return -EBUSY;
 	}
 
-	if (frame_size > RTE_ETHER_MAX_LEN)
+	if (frame_size > I40E_ETH_MAX_LEN)
 		dev_data->dev_conf.rxmode.offloads |=
 			DEV_RX_OFFLOAD_JUMBO_FRAME;
 	else
diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index 0343e8b09a..f5defcf585 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -116,7 +116,7 @@ i40e_fdir_rx_queue_init(struct i40e_rx_queue *rxq)
 #endif
 	rx_ctx.dtype = i40e_header_split_none;
 	rx_ctx.hsplit_0 = I40E_HEADER_SPLIT_NONE;
-	rx_ctx.rxmax = RTE_ETHER_MAX_LEN;
+	rx_ctx.rxmax = I40E_ETH_MAX_LEN;
 	rx_ctx.tphrdesc_ena = 1;
 	rx_ctx.tphwdesc_ena = 1;
 	rx_ctx.tphdata_ena = 1;
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 5df9a9df56..b8859bbff2 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -2797,23 +2797,23 @@ i40e_rx_queue_config(struct i40e_rx_queue *rxq)
 		RTE_MIN((uint32_t)(hw->func_caps.rx_buf_chain_len *
 			rxq->rx_buf_len), data->dev_conf.rxmode.max_rx_pkt_len);
 	if (data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
-		if (rxq->max_pkt_len <= RTE_ETHER_MAX_LEN ||
+		if (rxq->max_pkt_len <= I40E_ETH_MAX_LEN ||
 			rxq->max_pkt_len > I40E_FRAME_SIZE_MAX) {
 			PMD_DRV_LOG(ERR, "maximum packet length must "
 				    "be larger than %u and smaller than %u,"
 				    "as jumbo frame is enabled",
-				    (uint32_t)RTE_ETHER_MAX_LEN,
+				    (uint32_t)I40E_ETH_MAX_LEN,
 				    (uint32_t)I40E_FRAME_SIZE_MAX);
 			return I40E_ERR_CONFIG;
 		}
 	} else {
 		if (rxq->max_pkt_len < RTE_ETHER_MIN_LEN ||
-			rxq->max_pkt_len > RTE_ETHER_MAX_LEN) {
+			rxq->max_pkt_len > I40E_ETH_MAX_LEN) {
 			PMD_DRV_LOG(ERR, "maximum packet length must be "
 				    "larger than %u and smaller than %u, "
 				    "as jumbo frame is disabled",
 				    (uint32_t)RTE_ETHER_MIN_LEN,
-				    (uint32_t)RTE_ETHER_MAX_LEN);
+				    (uint32_t)I40E_ETH_MAX_LEN);
 			return I40E_ERR_CONFIG;
 		}
 	}
-- 
2.29.2

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-02-05 11:18:35.983420719 +0000
+++ 0149-net-i40e-fix-jumbo-frame-flag-condition.patch	2021-02-05 11:18:29.074696214 +0000
@@ -1 +1 @@
-From c12f0976cb2e915ab7c93a46310ba826ffb5496b Mon Sep 17 00:00:00 2001
+From e4eafd1fe30bd40ebef6d4392868289b1ff102f1 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit c12f0976cb2e915ab7c93a46310ba826ffb5496b ]
+
@@ -18 +19,0 @@
-Cc: stable at dpdk.org
@@ -31 +32 @@
-index 42987c5dab..946994b80a 100644
+index 213fb99ca9..ef4f28fe53 100644
@@ -34 +35 @@
-@@ -11687,7 +11687,7 @@ i40e_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+@@ -11782,7 +11782,7 @@ i40e_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
@@ -44 +45 @@
-index cd484710b0..1e8f5d3a87 100644
+index aac226999c..20d051db8b 100644
@@ -47 +48 @@
-@@ -283,6 +283,7 @@ struct rte_flow {
+@@ -281,6 +281,7 @@ struct rte_flow {
@@ -56 +57 @@
-index 346ec29cbe..5d7db7fe13 100644
+index dc076ae552..bca8cb80e4 100644
@@ -59 +60 @@
-@@ -1900,22 +1900,22 @@ i40evf_rxq_init(struct rte_eth_dev *dev, struct i40e_rx_queue *rxq)
+@@ -1899,22 +1899,22 @@ i40evf_rxq_init(struct rte_eth_dev *dev, struct i40e_rx_queue *rxq)
@@ -86 +87 @@
-@@ -2837,7 +2837,7 @@ i40evf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+@@ -2836,7 +2836,7 @@ i40evf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
@@ -109 +110 @@
-index 3574867685..1ae62d4334 100644
+index 5df9a9df56..b8859bbff2 100644
@@ -112 +113 @@
-@@ -2845,23 +2845,23 @@ i40e_rx_queue_config(struct i40e_rx_queue *rxq)
+@@ -2797,23 +2797,23 @@ i40e_rx_queue_config(struct i40e_rx_queue *rxq)


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