patches for DPDK stable branches
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From: Kevin Traynor <ktraynor@redhat.com>
To: David Marchand <david.marchand@redhat.com>
Cc: Ferruh Yigit <ferruh.yigit@intel.com>, dpdk stable <stable@dpdk.org>
Subject: [dpdk-stable] patch 'net/pcap: fix Rx with small buffers' has been queued to LTS release 18.11.3
Date: Thu,  5 Sep 2019 11:17:12 +0100
Message-ID: <20190905101754.21933-12-ktraynor@redhat.com> (raw)
In-Reply-To: <20190905101754.21933-1-ktraynor@redhat.com>

Hi,

FYI, your patch has been queued to LTS release 18.11.3

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 09/12/19. 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/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/11ab8ddd3f846ae5d87f3ad40b7934388a071829

Thanks.

Kevin Traynor

---
From 11ab8ddd3f846ae5d87f3ad40b7934388a071829 Mon Sep 17 00:00:00 2001
From: David Marchand <david.marchand@redhat.com>
Date: Thu, 25 Jul 2019 21:24:17 +0200
Subject: [PATCH] net/pcap: fix Rx with small buffers

[ upstream commit 6653d812c6d47f02ec6562a6118254299b0ffd5c ]

If the pkt pool contains only buffers smaller than the default headroom,
then the driver will compute an invalid buffer size (negative value cast
to an uint16_t).
Rely on the mbuf api to check how much space is available in the mbuf.

Fixes: 6eb0ae218a98 ("pcap: fix mbuf allocation")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 drivers/net/pcap/rte_eth_pcap.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c
index 070124c86..334075ca8 100644
--- a/drivers/net/pcap/rte_eth_pcap.c
+++ b/drivers/net/pcap/rte_eth_pcap.c
@@ -189,5 +189,4 @@ eth_pcap_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 	struct pcap_rx_queue *pcap_q = queue;
 	uint16_t num_rx = 0;
-	uint16_t buf_size;
 	uint32_t rx_bytes = 0;
 	pcap_t *pcap;
@@ -212,9 +211,5 @@ eth_pcap_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 			break;
 
-		/* Now get the space available for data in the mbuf */
-		buf_size = rte_pktmbuf_data_room_size(pcap_q->mb_pool) -
-				RTE_PKTMBUF_HEADROOM;
-
-		if (header.caplen <= buf_size) {
+		if (header.caplen <= rte_pktmbuf_tailroom(mbuf)) {
 			/* pcap packet will fit in the mbuf, can copy it */
 			rte_memcpy(rte_pktmbuf_mtod(mbuf, void *), packet,
-- 
2.20.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-09-05 10:36:48.245734501 +0100
+++ 0012-net-pcap-fix-Rx-with-small-buffers.patch	2019-09-05 10:36:47.480701240 +0100
@@ -1 +1 @@
-From 6653d812c6d47f02ec6562a6118254299b0ffd5c Mon Sep 17 00:00:00 2001
+From 11ab8ddd3f846ae5d87f3ad40b7934388a071829 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 6653d812c6d47f02ec6562a6118254299b0ffd5c ]
+
@@ -12 +13,0 @@
-Cc: stable@dpdk.org
@@ -21 +22 @@
-index 322c18f75..470867de6 100644
+index 070124c86..334075ca8 100644
@@ -24 +25 @@
-@@ -243,5 +243,4 @@ eth_pcap_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+@@ -189,5 +189,4 @@ eth_pcap_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
@@ -30 +31 @@
-@@ -266,9 +265,5 @@ eth_pcap_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+@@ -212,9 +211,5 @@ eth_pcap_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)

  parent reply index

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-05 10:17 [dpdk-stable] patch 'ethdev: avoid getting uninitialized info for bad port' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'vfio: use contiguous mapping for IOVA as VA mode' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'compress/zlib: fix error handling' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'cryptodev: fix typo in comment' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'security: remove duplicated symbols from map file' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/i40e: fix RSS hash update for X722 VF' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/sfc: fix power of 2 round up when align has smaller type' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/sfc: fix align to power of 2 " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/sfc: unify power of 2 alignment check macro' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/bnxt: fix extended port counter statistics' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/bnxt: reduce verbosity of a message' " Kevin Traynor
2019-09-05 10:17 ` Kevin Traynor [this message]
2019-09-05 10:17 ` [dpdk-stable] patch 'net/pcap: fix Tx return count in error conditions' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/avf: fix endless loop' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/ixgbe: fix RETA size for VF' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'igb_uio: fix build on Linux 5.3 for fall through' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'distributor: fix livelock on flush' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'app/testpmd: fix eth packet dump for small buffers' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'app/testpmd: rename ambiguous VF config variable' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'examples/ip_frag: remove Tx fast free offload flag' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'examples/ptpclient: fix delay request message' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'test: enable installing app with meson' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'test/eal: fix --socket-mem option' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/virtio: fix build' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'examples/l3fwd: fix unaligned memory access on x86' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'eal: fix control thread affinity with --lcores' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'doc: update features supported by mlx' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'usertools: replace unsafe input function' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'devtools: fix building kernel component tags' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'test/flow_classify: fix undefined behavior' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'acl: fix undefined behavior of bit shifts' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'test: remove link to ixgbe/i40e with meson' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'eal: hide internal function' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'bus/pci: remove unused x86 Linux constant' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/dpaa: fix build with 0 headroom' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'bus/fslmc: " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/virtio: " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/ena: fix L4 checksum Tx offload' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'doc: add co-existence consideration for bnx2x' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'doc: add co-existence consideration for qede' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/thunderx: fix crash on detach' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'examples/bpf: fix build' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/ixgbe: fix address of first segment' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/i40e: " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/avf: " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/fm10k: " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/mlx4: fix crash on info query in secondary process' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/mlx5: fix validation of VLAN PCP item' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/mlx5: fix VLAN inner type matching on DR/DV' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/mlx5: fix link speed info when link is down' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'app/testpmd: fix latency stats deinit on signal' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'net/ixgbe/base: fix product version check' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'eal: increase maximum different hugepage sizes on Arm' " Kevin Traynor
2019-09-05 10:17 ` [dpdk-stable] patch 'usertools: fix input handling in telemetry script' " Kevin Traynor

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