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-rw-r--r--dpdk/dpdk-16.04_patches/0023-net-enic-fix-memory-freeing.patch238
1 files changed, 0 insertions, 238 deletions
diff --git a/dpdk/dpdk-16.04_patches/0023-net-enic-fix-memory-freeing.patch b/dpdk/dpdk-16.04_patches/0023-net-enic-fix-memory-freeing.patch
deleted file mode 100644
index 0cc423acb54..00000000000
--- a/dpdk/dpdk-16.04_patches/0023-net-enic-fix-memory-freeing.patch
+++ /dev/null
@@ -1,238 +0,0 @@
-From 2040a8f4e47d3bc4b7f0f11faa863a4bd8d8891d Mon Sep 17 00:00:00 2001
-From: Nelson Escobar <neescoba@cisco.com>
-Date: Thu, 23 Jun 2016 16:14:58 -0700
-Subject: [PATCH 23/25] net/enic: fix memory freeing
-
-enic_alloc_consistent() allocated memory, but enic_free_consistent()
-was an empty function, so allocated memory was never freed.
-
-This commit adds a list and lock to the enic structure to keep track
-of the memzones allocated in enic_alloc_consistent(), and
-enic_free_consistent() uses that information to properly free memory.
-
-Fixes: fefed3d1e62c ("enic: new driver")
-
-Signed-off-by: Nelson Escobar <neescoba@cisco.com>
-Reviewed-by: John Daley <johndale@cisco.com>
----
- drivers/net/enic/base/vnic_dev.c | 14 +++++------
- drivers/net/enic/base/vnic_dev.h | 2 +-
- drivers/net/enic/enic.h | 11 ++++++++
- drivers/net/enic/enic_main.c | 54 ++++++++++++++++++++++++++++++++++------
- 4 files changed, 65 insertions(+), 16 deletions(-)
-
-diff --git a/drivers/net/enic/base/vnic_dev.c b/drivers/net/enic/base/vnic_dev.c
-index e8a5028..fc2e4cc 100644
---- a/drivers/net/enic/base/vnic_dev.c
-+++ b/drivers/net/enic/base/vnic_dev.c
-@@ -83,7 +83,7 @@ struct vnic_dev {
- struct vnic_intr_coal_timer_info intr_coal_timer_info;
- void *(*alloc_consistent)(void *priv, size_t size,
- dma_addr_t *dma_handle, u8 *name);
-- void (*free_consistent)(struct rte_pci_device *hwdev,
-+ void (*free_consistent)(void *priv,
- size_t size, void *vaddr,
- dma_addr_t dma_handle);
- };
-@@ -101,7 +101,7 @@ void *vnic_dev_priv(struct vnic_dev *vdev)
- void vnic_register_cbacks(struct vnic_dev *vdev,
- void *(*alloc_consistent)(void *priv, size_t size,
- dma_addr_t *dma_handle, u8 *name),
-- void (*free_consistent)(struct rte_pci_device *hwdev,
-+ void (*free_consistent)(void *priv,
- size_t size, void *vaddr,
- dma_addr_t dma_handle))
- {
-@@ -807,7 +807,7 @@ int vnic_dev_notify_unsetcmd(struct vnic_dev *vdev)
- int vnic_dev_notify_unset(struct vnic_dev *vdev)
- {
- if (vdev->notify && !vnic_dev_in_reset(vdev)) {
-- vdev->free_consistent(vdev->pdev,
-+ vdev->free_consistent(vdev->priv,
- sizeof(struct vnic_devcmd_notify),
- vdev->notify,
- vdev->notify_pa);
-@@ -924,16 +924,16 @@ void vnic_dev_unregister(struct vnic_dev *vdev)
- {
- if (vdev) {
- if (vdev->notify)
-- vdev->free_consistent(vdev->pdev,
-+ vdev->free_consistent(vdev->priv,
- sizeof(struct vnic_devcmd_notify),
- vdev->notify,
- vdev->notify_pa);
- if (vdev->stats)
-- vdev->free_consistent(vdev->pdev,
-+ vdev->free_consistent(vdev->priv,
- sizeof(struct vnic_stats),
- vdev->stats, vdev->stats_pa);
- if (vdev->fw_info)
-- vdev->free_consistent(vdev->pdev,
-+ vdev->free_consistent(vdev->priv,
- sizeof(struct vnic_devcmd_fw_info),
- vdev->fw_info, vdev->fw_info_pa);
- kfree(vdev);
-@@ -1041,7 +1041,7 @@ int vnic_dev_classifier(struct vnic_dev *vdev, u8 cmd, u16 *entry,
-
- ret = vnic_dev_cmd(vdev, CMD_ADD_FILTER, &a0, &a1, wait);
- *entry = (u16)a0;
-- vdev->free_consistent(vdev->pdev, tlv_size, tlv_va, tlv_pa);
-+ vdev->free_consistent(vdev->priv, tlv_size, tlv_va, tlv_pa);
- } else if (cmd == CLSF_DEL) {
- a0 = *entry;
- ret = vnic_dev_cmd(vdev, CMD_DEL_FILTER, &a0, &a1, wait);
-diff --git a/drivers/net/enic/base/vnic_dev.h b/drivers/net/enic/base/vnic_dev.h
-index 113d6ac..689442f 100644
---- a/drivers/net/enic/base/vnic_dev.h
-+++ b/drivers/net/enic/base/vnic_dev.h
-@@ -102,7 +102,7 @@ unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev,
- void vnic_register_cbacks(struct vnic_dev *vdev,
- void *(*alloc_consistent)(void *priv, size_t size,
- dma_addr_t *dma_handle, u8 *name),
-- void (*free_consistent)(struct rte_pci_device *hwdev,
-+ void (*free_consistent)(void *priv,
- size_t size, void *vaddr,
- dma_addr_t dma_handle));
- void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type,
-diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
-index d2de6ee..175adb8 100644
---- a/drivers/net/enic/enic.h
-+++ b/drivers/net/enic/enic.h
-@@ -46,6 +46,8 @@
- #include "vnic_rss.h"
- #include "enic_res.h"
- #include "cq_enet_desc.h"
-+#include <sys/queue.h>
-+#include <rte_spinlock.h>
-
- #define DRV_NAME "enic_pmd"
- #define DRV_DESCRIPTION "Cisco VIC Ethernet NIC Poll-mode Driver"
-@@ -96,6 +98,11 @@ struct enic_soft_stats {
- rte_atomic64_t rx_packet_errors;
- };
-
-+struct enic_memzone_entry {
-+ const struct rte_memzone *rz;
-+ LIST_ENTRY(enic_memzone_entry) entries;
-+};
-+
- /* Per-instance private data structure */
- struct enic {
- struct enic *next;
-@@ -140,6 +147,10 @@ struct enic {
- unsigned int intr_count;
-
- struct enic_soft_stats soft_stats;
-+
-+ /* linked list storing memory allocations */
-+ LIST_HEAD(enic_memzone_list, enic_memzone_entry) memzone_list;
-+ rte_spinlock_t memzone_list_lock;
- };
-
- static inline unsigned int enic_sop_rq(__rte_unused struct enic *enic, unsigned int rq)
-diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
-index 43e4af1..0547f3b 100644
---- a/drivers/net/enic/enic_main.c
-+++ b/drivers/net/enic/enic_main.c
-@@ -356,12 +356,14 @@ enic_alloc_rx_queue_mbufs(struct enic *enic, struct vnic_rq *rq)
- }
-
- static void *
--enic_alloc_consistent(__rte_unused void *priv, size_t size,
-+enic_alloc_consistent(void *priv, size_t size,
- dma_addr_t *dma_handle, u8 *name)
- {
- void *vaddr;
- const struct rte_memzone *rz;
- *dma_handle = 0;
-+ struct enic *enic = (struct enic *)priv;
-+ struct enic_memzone_entry *mze;
-
- rz = rte_memzone_reserve_aligned((const char *)name,
- size, SOCKET_ID_ANY, 0, ENIC_ALIGN);
-@@ -374,16 +376,49 @@ enic_alloc_consistent(__rte_unused void *priv, size_t size,
- vaddr = rz->addr;
- *dma_handle = (dma_addr_t)rz->phys_addr;
-
-+ mze = rte_malloc("enic memzone entry",
-+ sizeof(struct enic_memzone_entry), 0);
-+
-+ if (!mze) {
-+ pr_err("%s : Failed to allocate memory for memzone list\n",
-+ __func__);
-+ rte_memzone_free(rz);
-+ }
-+
-+ mze->rz = rz;
-+
-+ rte_spinlock_lock(&enic->memzone_list_lock);
-+ LIST_INSERT_HEAD(&enic->memzone_list, mze, entries);
-+ rte_spinlock_unlock(&enic->memzone_list_lock);
-+
- return vaddr;
- }
-
- static void
--enic_free_consistent(__rte_unused struct rte_pci_device *hwdev,
-- __rte_unused size_t size,
-- __rte_unused void *vaddr,
-- __rte_unused dma_addr_t dma_handle)
-+enic_free_consistent(void *priv,
-+ __rte_unused size_t size,
-+ void *vaddr,
-+ dma_addr_t dma_handle)
- {
-- /* Nothing to be done */
-+ struct enic_memzone_entry *mze;
-+ struct enic *enic = (struct enic *)priv;
-+
-+ rte_spinlock_lock(&enic->memzone_list_lock);
-+ LIST_FOREACH(mze, &enic->memzone_list, entries) {
-+ if (mze->rz->addr == vaddr &&
-+ mze->rz->phys_addr == dma_handle)
-+ break;
-+ }
-+ if (mze == NULL) {
-+ rte_spinlock_unlock(&enic->memzone_list_lock);
-+ dev_warning(enic,
-+ "Tried to free memory, but couldn't find it in the memzone list\n");
-+ return;
-+ }
-+ LIST_REMOVE(mze, entries);
-+ rte_spinlock_unlock(&enic->memzone_list_lock);
-+ rte_memzone_free(mze->rz);
-+ rte_free(mze);
- }
-
- static void
-@@ -840,7 +875,7 @@ static int enic_set_rsskey(struct enic *enic)
- rss_key_buf_pa,
- sizeof(union vnic_rss_key));
-
-- enic_free_consistent(enic->pdev, sizeof(union vnic_rss_key),
-+ enic_free_consistent(enic, sizeof(union vnic_rss_key),
- rss_key_buf_va, rss_key_buf_pa);
-
- return err;
-@@ -867,7 +902,7 @@ static int enic_set_rsscpu(struct enic *enic, u8 rss_hash_bits)
- rss_cpu_buf_pa,
- sizeof(union vnic_rss_cpu));
-
-- enic_free_consistent(enic->pdev, sizeof(union vnic_rss_cpu),
-+ enic_free_consistent(enic, sizeof(union vnic_rss_cpu),
- rss_cpu_buf_va, rss_cpu_buf_pa);
-
- return err;
-@@ -1049,6 +1084,9 @@ int enic_probe(struct enic *enic)
- goto err_out;
- }
-
-+ LIST_INIT(&enic->memzone_list);
-+ rte_spinlock_init(&enic->memzone_list_lock);
-+
- vnic_register_cbacks(enic->vdev,
- enic_alloc_consistent,
- enic_free_consistent);
---
-2.7.0
-