patches for DPDK stable branches
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From: Kevin Traynor <ktraynor@redhat.com>
To: Yunjian Wang <wangyunjian@huawei.com>
Cc: Ferruh Yigit <ferruh.yigit@intel.com>, dpdk stable <stable@dpdk.org>
Subject: [dpdk-stable] patch 'net/tap: free mempool when closing' has been queued to LTS release 18.11.11
Date: Thu,  5 Nov 2020 12:39:18 +0000
Message-ID: <20201105124015.306404-11-ktraynor@redhat.com> (raw)
In-Reply-To: <20201105124015.306404-1-ktraynor@redhat.com>

Hi,

FYI, your patch has been queued to LTS release 18.11.11

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/10/20. 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/b2089030c96abc063fc70fe9999b24dd3a003fdc

Thanks.

Kevin.

---
From b2089030c96abc063fc70fe9999b24dd3a003fdc Mon Sep 17 00:00:00 2001
From: Yunjian Wang <wangyunjian@huawei.com>
Date: Sat, 8 Aug 2020 17:58:43 +0800
Subject: [PATCH] net/tap: free mempool when closing

[ upstream commit 05a8e4a35d3ca9c1e5271917ad081ba78cd73fce ]

When setup tx queues, we will create a mempool for the 'gso_ctx'.
The mempool is not freed when closing tap device. If free the tap
device and create it with different name, it will create a new
mempool. This maybe cause an OOM.

The snprintf function return value is not checked and the mempool
name may be truncated. This patch also fix it.

Fixes: 050316a88313 ("net/tap: support TSO (TCP Segment Offload)")

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 drivers/net/tap/rte_eth_tap.c | 43 +++++++++++++++++++++--------------
 drivers/net/tap/rte_eth_tap.h |  1 +
 2 files changed, 27 insertions(+), 17 deletions(-)

diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index 62fb542865..6fcdd9480c 100644
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -1069,4 +1069,7 @@ tap_dev_close(struct rte_eth_dev *dev)
 	}
 
+	rte_mempool_free(internals->gso_ctx_mp);
+	internals->gso_ctx_mp = NULL;
+
 	if (internals->ka_fd != -1) {
 		close(internals->ka_fd);
@@ -1250,24 +1253,29 @@ tap_gso_ctx_setup(struct rte_gso_ctx *gso_ctx, struct rte_eth_dev *dev)
 	uint32_t gso_types;
 	char pool_name[64];
-
-	/*
-	 * Create private mbuf pool with TAP_GSO_MBUF_SEG_SIZE bytes
-	 * size per mbuf use this pool for both direct and indirect mbufs
-	 */
-
-	struct rte_mempool *mp;      /* Mempool for GSO packets */
+	struct pmd_internals *pmd = dev->data->dev_private;
+	int ret;
 
 	/* initialize GSO context */
 	gso_types = DEV_TX_OFFLOAD_TCP_TSO;
-	snprintf(pool_name, sizeof(pool_name), "mp_%s", dev->device->name);
-	mp = rte_mempool_lookup((const char *)pool_name);
-	if (!mp) {
-		mp = rte_pktmbuf_pool_create(pool_name, TAP_GSO_MBUFS_NUM,
-			TAP_GSO_MBUF_CACHE_SIZE, 0,
+	if (!pmd->gso_ctx_mp) {
+		/*
+		 * Create private mbuf pool with TAP_GSO_MBUF_SEG_SIZE
+		 * bytes size per mbuf use this pool for both direct and
+		 * indirect mbufs
+		 */
+		ret = snprintf(pool_name, sizeof(pool_name), "mp_%s",
+				dev->device->name);
+		if (ret < 0 || ret >= (int)sizeof(pool_name)) {
+			TAP_LOG(ERR,
+				"%s: failed to create mbuf pool name for device %s,"
+				"device name too long or output error, ret: %d\n",
+				pmd->name, dev->device->name, ret);
+			return -ENAMETOOLONG;
+		}
+		pmd->gso_ctx_mp = rte_pktmbuf_pool_create(pool_name,
+			TAP_GSO_MBUFS_NUM, TAP_GSO_MBUF_CACHE_SIZE, 0,
 			RTE_PKTMBUF_HEADROOM + TAP_GSO_MBUF_SEG_SIZE,
 			SOCKET_ID_ANY);
-		if (!mp) {
-			struct pmd_internals *pmd = dev->data->dev_private;
-
+		if (!pmd->gso_ctx_mp) {
 			TAP_LOG(ERR,
 				"%s: failed to create mbuf pool for device %s\n",
@@ -1277,6 +1285,6 @@ tap_gso_ctx_setup(struct rte_gso_ctx *gso_ctx, struct rte_eth_dev *dev)
 	}
 
-	gso_ctx->direct_pool = mp;
-	gso_ctx->indirect_pool = mp;
+	gso_ctx->direct_pool = pmd->gso_ctx_mp;
+	gso_ctx->indirect_pool = pmd->gso_ctx_mp;
 	gso_ctx->gso_types = gso_types;
 	gso_ctx->gso_size = 0; /* gso_size is set in tx_burst() per packet */
@@ -1771,4 +1779,5 @@ eth_dev_tap_create(struct rte_vdev_device *vdev, char *tap_name,
 	pmd->ka_fd = -1;
 	pmd->nlsk_fd = -1;
+	pmd->gso_ctx_mp = NULL;
 
 	pmd->ioctl_sock = socket(AF_INET, SOCK_DGRAM, 0);
diff --git a/drivers/net/tap/rte_eth_tap.h b/drivers/net/tap/rte_eth_tap.h
index dc3579ac0d..cb50745d79 100644
--- a/drivers/net/tap/rte_eth_tap.h
+++ b/drivers/net/tap/rte_eth_tap.h
@@ -92,4 +92,5 @@ struct pmd_internals {
 	struct rte_intr_handle intr_handle;          /* LSC interrupt handle. */
 	int ka_fd;                        /* keep-alive file descriptor */
+	struct rte_mempool *gso_ctx_mp;     /* Mempool for GSO packets */
 };
 
-- 
2.26.2

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-11-05 12:38:54.476303685 +0000
+++ 0011-net-tap-free-mempool-when-closing.patch	2020-11-05 12:38:54.170895965 +0000
@@ -1 +1 @@
-From 05a8e4a35d3ca9c1e5271917ad081ba78cd73fce Mon Sep 17 00:00:00 2001
+From b2089030c96abc063fc70fe9999b24dd3a003fdc Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 05a8e4a35d3ca9c1e5271917ad081ba78cd73fce ]
+
@@ -15 +16,0 @@
-Cc: stable@dpdk.org
@@ -25 +26 @@
-index b19e26ba0e..df16aa4ea7 100644
+index 62fb542865..6fcdd9480c 100644
@@ -28 +29 @@
-@@ -1106,4 +1106,7 @@ tap_dev_close(struct rte_eth_dev *dev)
+@@ -1069,4 +1069,7 @@ tap_dev_close(struct rte_eth_dev *dev)
@@ -36 +37 @@
-@@ -1353,24 +1356,29 @@ tap_gso_ctx_setup(struct rte_gso_ctx *gso_ctx, struct rte_eth_dev *dev)
+@@ -1250,24 +1253,29 @@ tap_gso_ctx_setup(struct rte_gso_ctx *gso_ctx, struct rte_eth_dev *dev)
@@ -81 +82 @@
-@@ -1380,6 +1388,6 @@ tap_gso_ctx_setup(struct rte_gso_ctx *gso_ctx, struct rte_eth_dev *dev)
+@@ -1277,6 +1285,6 @@ tap_gso_ctx_setup(struct rte_gso_ctx *gso_ctx, struct rte_eth_dev *dev)
@@ -90 +91 @@
-@@ -1878,4 +1886,5 @@ eth_dev_tap_create(struct rte_vdev_device *vdev, const char *tap_name,
+@@ -1771,4 +1779,5 @@ eth_dev_tap_create(struct rte_vdev_device *vdev, char *tap_name,
@@ -97 +98 @@
-index 8d6d53dc0a..ba45de8409 100644
+index dc3579ac0d..cb50745d79 100644


  parent reply	other threads:[~2020-11-05 12:40 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-05 12:39 [dpdk-stable] patch 'bus/pci: remove duplicate declaration' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/failsafe: fix double space in warning log' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/netvsc: fix multiple channel Rx' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/netvsc: fix stale value after free' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/mlx5: remove unused log macros' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/bnxt: fix endianness while setting L4 destination port' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/iavf: downgrade error log' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'ethdev: remove redundant license text' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/i40e/base: fix function header arguments' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/i40e/base: fix Rx only for unicast promisc on VLAN' " Kevin Traynor
2020-11-05 12:39 ` Kevin Traynor [this message]
2020-11-05 12:39 ` [dpdk-stable] patch 'net/dpaa2: fix misuse of interface index' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/cxgbe: fix duplicate MAC addresses in MPS TCAM' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/nfp: expand device info get' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix name of bitrate library in meson build' " Kevin Traynor
2020-11-05 13:22   ` David Marchand
2020-11-11 10:44     ` Kevin Traynor
2020-11-11 10:50       ` Kevin Traynor
2020-11-11 11:51         ` Luca Boccassi
2020-11-05 12:39 ` [dpdk-stable] patch 'gso: fix payload unit size for UDP' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'doc: improve multiport PF in nfp guide' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/sfc/base: fix tunnel configuration' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'vhost: fix IOTLB mempool single-consumer flag' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/qede: fix milliseconds sleep macro' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/ena/base: use min/max macros with type conversion' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/ena/base: specify delay operations' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/ena/base: fix release of wait event' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/i40e: fix byte counters' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/ixgbe: fix VF reset HW error handling' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/bnxt: fix shift operation' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/bnxt: fix queue get info' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'mempool/octeontx: fix aura to pool mapping' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/fm10k: fix memory leak when thresh check fails' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix port id check in Tx VLAN command' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix VLAN configuration on failure' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: remove restriction on Tx segments set' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix descriptor id check' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix displaying Rx/Tx queues information' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/qede: fix dereference before null check' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app: fix ethdev port id size' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'doc: " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'vdpa/ifc: fix build with recent kernels' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'vfio: fix group descriptor check' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'bus/pci: fix memory leak when unmapping VFIO resource' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'bus/pci: fix leak on VFIO mapping error' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'doc: fix formatting of notes in meson guide' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'mem: fix allocation in container with SELinux' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'bus/fslmc: fix dpio close' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'raw/skeleton: reset test statistics' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'raw/skeleton: allow closing already closed device' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'port: remove useless assignment' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'timer: add limitation note for sync stop and reset' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix build with gcc 11' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'pmdinfogen: " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/mlx5: fix Rx queue count calculation' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/qede: fix getting link details' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'net/fm10k: fix memory leak when Tx thresh check fails' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'raw/dpaa2_qdma: fix reset' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'eal: fix doxygen for EAL cleanup' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'build: skip detecting libpcap via pcap-config' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'doc: fix diagram in dpaa2 guide' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'net: check segment pointer in raw checksum processing' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'net/virtio: check raw checksum failure' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'mem: fix allocation failure on non-NUMA kernel' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'doc: fix missing classify methods in ACL guide' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'table: fix hash for 32-bit' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'test/crypto: fix device number' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'test/crypto: fix stats test' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'cryptodev: fix parameter parsing' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'crypto/dpaa2_sec: fix stats query without queue pair' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'net/avf: fix scattered Rx enabling' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'net/avf: fix iterator for RSS LUT' " Kevin Traynor

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