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libpfring: Fix compilation with kernel >= 4.16 

Backported upstream patch.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
lilik-openwrt-22.03
Rosen Penev 5 years ago
parent
decf99dc64
commit
04b5e10911
No known key found for this signature in database GPG Key ID: 36D31CFA845F0E3B
2 changed files with 730 additions and 1 deletions
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  1. +1
    -1
      libs/libpfring/Makefile
  2. +729
    -0
      libs/libpfring/patches/010-kernel-416.patch

+ 1
- 1
libs/libpfring/Makefile View File

@ -10,7 +10,7 @@ include $(INCLUDE_DIR)/kernel.mk
PKG_NAME:=libpfring
PKG_VERSION:=7.4.0
PKG_RELEASE:=1
PKG_RELEASE:=2
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_SOURCE_URL:=https://codeload.github.com/ntop/PF_RING/tar.gz/$(PKG_VERSION)?


+ 729
- 0
libs/libpfring/patches/010-kernel-416.patch View File

@ -0,0 +1,729 @@
From 2aa76765ff367e9c9c49c7373f7e2f51fb10b399 Mon Sep 17 00:00:00 2001
From: Alfredo Cardigliano <cardigliano@ntop.org>
Date: Wed, 27 Feb 2019 15:35:37 +0000
Subject: [PATCH] Replaced kernel hook with exported functions
---
.../e1000e/e1000e-3.4.0.2-zc/src/netdev.c | 30 +---
.../fm10k/fm10k-0.23.5-zc/src/fm10k_pci.c | 15 +-
.../intel/i40e/i40e-2.4.6-zc/src/i40e_main.c | 170 +++++++++---------
.../intel/igb/igb-5.3.5.18-zc/src/igb_main.c | 14 +-
.../ixgbevf-4.5.1-zc/src/ixgbevf_main.c | 16 +-
kernel/linux/pf_ring.h | 85 +++------
kernel/pf_ring.c | 115 +++---------
9 files changed, 154 insertions(+), 319 deletions(-)
diff --git a/drivers/intel/e1000e/e1000e-3.4.0.2-zc/src/netdev.c b/drivers/intel/e1000e/e1000e-3.4.0.2-zc/src/netdev.c
index e0a10f04..50fdc5a5 100644
--- a/drivers/intel/e1000e/e1000e-3.4.0.2-zc/src/netdev.c
+++ b/drivers/intel/e1000e/e1000e-3.4.0.2-zc/src/netdev.c
@@ -610,19 +610,15 @@ e1000_receive_skb(struct e1000_adapter *adapter,
#ifdef HAVE_PF_RING
if (atomic_read(&adapter->pfring_zc.usage_counter) > 0) { /* act as direct driver-to-ring */
- struct pfring_hooks *hook = (struct pfring_hooks *) netdev->pfring_ptr;
-
- if (hook && (hook->magic == PF_RING)) { /* PF_RING is alive */
- int rc;
+ int rc;
- //printk(KERN_INFO "[PF_RING] %s driver -> pf_ring [len=%d]\n", netdev->name, skb->len);
+ //printk(KERN_INFO "[PF_RING] %s driver -> pf_ring [len=%d]\n", netdev->name, skb->len);
- rc = hook->ring_handler(skb, 1, 1, -1, 1);
+ rc = pfring_skb_ring_handler(skb, 1, 1, -1, 1);
- if (rc > 0) { /* Packet handled by PF_RING */
- kfree_skb(skb);
- return rc; /* PF_RING has already freed the memory */
- }
+ if (rc > 0) { /* Packet handled by PF_RING */
+ kfree_skb(skb);
+ return rc; /* PF_RING has already freed the memory */
}
}
#endif
@@ -4611,9 +4607,6 @@ static void e1000_configure(struct e1000_adapter *adapter)
#ifdef HAVE_PF_RING
{
- struct pfring_hooks *hook = (struct pfring_hooks*)adapter->netdev->pfring_ptr;
-
- if (hook != NULL) {
u16 cache_line_size;
struct e1000_ring *rx_ring = adapter->rx_ring;
struct e1000_ring *tx_ring = adapter->tx_ring;
@@ -4638,7 +4631,7 @@ static void e1000_configure(struct e1000_adapter *adapter)
tx_info.descr_packet_memory_tot_len = tx_ring->size;
// printk("%s(%d)=%lu\n", __FUNCTION__, i, adapter->netdev->mem_start);
- hook->zc_dev_handler(add_device_mapping,
+ pfring_zc_dev_handler(add_device_mapping,
#ifdef ENABLE_RX_ZC
&rx_info,
#else
@@ -4667,8 +4660,6 @@ static void e1000_configure(struct e1000_adapter *adapter)
//printk(KERN_INFO "[PF_RING] %s(%s, rx_ring=%p, tx_ring=%p)\n", __FUNCTION__, adapter->netdev->name, rx_ring, tx_ring);
}
-
- }
#endif
}
@@ -5254,10 +5245,7 @@ void e1000e_down(struct e1000_adapter *adapter, bool reset)
#ifdef HAVE_PF_RING
{
- struct pfring_hooks *hook = (struct pfring_hooks*)adapter->netdev->pfring_ptr;
-
- if (hook != NULL) {
- hook->zc_dev_handler(remove_device_mapping,
+ pfring_zc_dev_handler(remove_device_mapping,
NULL, // rx_info,
NULL, // tx_info,
NULL, /* Packet descriptors */
@@ -5276,8 +5264,6 @@ void e1000e_down(struct e1000_adapter *adapter, bool reset)
NULL // notify_function_ptr
);
}
-
- }
#endif
}
diff --git a/drivers/intel/fm10k/fm10k-0.23.5-zc/src/fm10k_pci.c b/drivers/intel/fm10k/fm10k-0.23.5-zc/src/fm10k_pci.c
index 041779c5..04e6e673 100644
--- a/drivers/intel/fm10k/fm10k-0.23.5-zc/src/fm10k_pci.c
+++ b/drivers/intel/fm10k/fm10k-0.23.5-zc/src/fm10k_pci.c
@@ -2104,11 +2104,7 @@ void fm10k_up(struct fm10k_intfc *interface)
#ifdef HAVE_PF_RING
{
- struct pfring_hooks *hook = (struct pfring_hooks*) interface->netdev->pfring_ptr;
-
- if (hook != NULL) {
int i;
-
unsigned int buf_len = FM10K_RX_BUFSZ; /* TODO check the correct length (what about jumbo?) */
for (i = 0; i < interface->num_rx_queues; i++) {
@@ -2129,7 +2125,7 @@ void fm10k_up(struct fm10k_intfc *interface)
tx_info.packet_memory_slot_len = buf_len;
tx_info.descr_packet_memory_tot_len = tx_ring->size;
- hook->zc_dev_handler(add_device_mapping,
+ pfring_zc_dev_handler(add_device_mapping,
&rx_info,
&tx_info,
rx_ring->desc,
@@ -2150,8 +2146,6 @@ void fm10k_up(struct fm10k_intfc *interface)
);
}
}
-
- }
#endif
}
@@ -2245,13 +2239,10 @@ void fm10k_down(struct fm10k_intfc *interface)
#ifdef HAVE_PF_RING
{
- struct pfring_hooks *hook = (struct pfring_hooks*)interface->netdev->pfring_ptr;
-
- if (hook != NULL) {
int i;
for (i = 0; i < interface->num_rx_queues; i++) {
- hook->zc_dev_handler(remove_device_mapping,
+ pfring_zc_dev_handler(remove_device_mapping,
NULL, // rx_info,
NULL, // tx_info,
NULL, /* Packet descriptors */
@@ -2271,8 +2262,6 @@ void fm10k_down(struct fm10k_intfc *interface)
);
}
}
-
- }
#endif
}
diff --git a/drivers/intel/i40e/i40e-2.4.6-zc/src/i40e_main.c b/drivers/intel/i40e/i40e-2.4.6-zc/src/i40e_main.c
index a3f2201c..466a6964 100644
--- a/drivers/intel/i40e/i40e-2.4.6-zc/src/i40e_main.c
+++ b/drivers/intel/i40e/i40e-2.4.6-zc/src/i40e_main.c
@@ -6063,64 +6063,60 @@ static int i40e_up_complete(struct i40e_vsi *vsi)
#ifdef HAVE_PF_RING
if (vsi->netdev) {
- struct pfring_hooks *hook = (struct pfring_hooks*)vsi->netdev->pfring_ptr;
-
- if (hook != NULL) {
- int i;
- u16 cache_line_size;
- struct i40e_pf *pf = vsi->back;
-
- pci_read_config_word(pf->pdev, I40E_PCI_DEVICE_CACHE_LINE_SIZE, &cache_line_size);
- cache_line_size &= 0x00FF;
- cache_line_size *= PCI_DEVICE_CACHE_LINE_SIZE_BYTES;
- if (cache_line_size == 0) cache_line_size = 64;
-
- //if (unlikely(enable_debug))
- printk("[PF_RING-ZC] %s: attach %s [pf start=%llu len=%llu][cache_line_size=%u][MSIX %s]\n", __FUNCTION__,
- vsi->netdev->name, pci_resource_start(pf->pdev, 0), pci_resource_len(pf->pdev, 0),
- cache_line_size, (vsi->back->flags & I40E_FLAG_MSIX_ENABLED) ? "enabled" : "disabled");
-
- for (i = 0; i < vsi->num_queue_pairs; i++) {
- struct i40e_ring *rx_ring = vsi->rx_rings[i];
- struct i40e_ring *tx_ring = vsi->tx_rings[i];
- mem_ring_info rx_info = { 0 };
- mem_ring_info tx_info = { 0 };
-
- init_waitqueue_head(&rx_ring->pfring_zc.rx_tx.rx.packet_waitqueue);
-
- rx_info.num_queues = vsi->num_queue_pairs;
- rx_info.packet_memory_num_slots = rx_ring->count;
- rx_info.packet_memory_slot_len = ALIGN(rx_ring->rx_buf_len, cache_line_size);
- rx_info.descr_packet_memory_tot_len = rx_ring->size;
- rx_info.registers_index = rx_ring->reg_idx;
- rx_info.stats_index = vsi->info.stat_counter_idx;
- rx_info.vector = rx_ring->q_vector->v_idx + vsi->base_vector;
+ int i;
+ u16 cache_line_size;
+ struct i40e_pf *pf = vsi->back;
+
+ pci_read_config_word(pf->pdev, I40E_PCI_DEVICE_CACHE_LINE_SIZE, &cache_line_size);
+ cache_line_size &= 0x00FF;
+ cache_line_size *= PCI_DEVICE_CACHE_LINE_SIZE_BYTES;
+ if (cache_line_size == 0) cache_line_size = 64;
+
+ //if (unlikely(enable_debug))
+ printk("[PF_RING-ZC] %s: attach %s [pf start=%llu len=%llu][cache_line_size=%u][MSIX %s]\n", __FUNCTION__,
+ vsi->netdev->name, pci_resource_start(pf->pdev, 0), pci_resource_len(pf->pdev, 0),
+ cache_line_size, (vsi->back->flags & I40E_FLAG_MSIX_ENABLED) ? "enabled" : "disabled");
+
+ for (i = 0; i < vsi->num_queue_pairs; i++) {
+ struct i40e_ring *rx_ring = vsi->rx_rings[i];
+ struct i40e_ring *tx_ring = vsi->tx_rings[i];
+ mem_ring_info rx_info = { 0 };
+ mem_ring_info tx_info = { 0 };
+
+ init_waitqueue_head(&rx_ring->pfring_zc.rx_tx.rx.packet_waitqueue);
+
+ rx_info.num_queues = vsi->num_queue_pairs;
+ rx_info.packet_memory_num_slots = rx_ring->count;
+ rx_info.packet_memory_slot_len = ALIGN(rx_ring->rx_buf_len, cache_line_size);
+ rx_info.descr_packet_memory_tot_len = rx_ring->size;
+ rx_info.registers_index = rx_ring->reg_idx;
+ rx_info.stats_index = vsi->info.stat_counter_idx;
+ rx_info.vector = rx_ring->q_vector->v_idx + vsi->base_vector;
- tx_info.num_queues = vsi->num_queue_pairs;
- tx_info.packet_memory_num_slots = tx_ring->count;
- tx_info.packet_memory_slot_len = rx_info.packet_memory_slot_len;
- tx_info.descr_packet_memory_tot_len = tx_ring->size;
- tx_info.registers_index = tx_ring->reg_idx;
-
- hook->zc_dev_handler(add_device_mapping,
- &rx_info,
- &tx_info,
- rx_ring->desc, /* rx packet descriptors */
- tx_ring->desc, /* tx packet descriptors */
- (void *) pci_resource_start(pf->pdev, 0),
- pci_resource_len(pf->pdev, 0),
- rx_ring->queue_index, /* channel id */
- rx_ring->netdev,
- rx_ring->dev, /* for DMA mapping */
- intel_i40e,
- rx_ring->netdev->dev_addr,
- &rx_ring->pfring_zc.rx_tx.rx.packet_waitqueue,
- &rx_ring->pfring_zc.rx_tx.rx.interrupt_received,
- (void *) rx_ring,
- (void *) tx_ring,
- wait_packet_function_ptr,
- notify_function_ptr);
- }
+ tx_info.num_queues = vsi->num_queue_pairs;
+ tx_info.packet_memory_num_slots = tx_ring->count;
+ tx_info.packet_memory_slot_len = rx_info.packet_memory_slot_len;
+ tx_info.descr_packet_memory_tot_len = tx_ring->size;
+ tx_info.registers_index = tx_ring->reg_idx;
+
+ pfring_zc_dev_handler(add_device_mapping,
+ &rx_info,
+ &tx_info,
+ rx_ring->desc, /* rx packet descriptors */
+ tx_ring->desc, /* tx packet descriptors */
+ (void *) pci_resource_start(pf->pdev, 0),
+ pci_resource_len(pf->pdev, 0),
+ rx_ring->queue_index, /* channel id */
+ rx_ring->netdev,
+ rx_ring->dev, /* for DMA mapping */
+ intel_i40e,
+ rx_ring->netdev->dev_addr,
+ &rx_ring->pfring_zc.rx_tx.rx.packet_waitqueue,
+ &rx_ring->pfring_zc.rx_tx.rx.interrupt_received,
+ (void *) rx_ring,
+ (void *) tx_ring,
+ wait_packet_function_ptr,
+ notify_function_ptr);
}
}
#endif
@@ -6273,42 +6269,38 @@ void i40e_down(struct i40e_vsi *vsi)
#ifdef HAVE_PF_RING
if (vsi->netdev) {
- struct pfring_hooks *hook = (struct pfring_hooks*)vsi->netdev->pfring_ptr;
struct i40e_pf *pf = vsi->back;
struct i40e_pf *adapter = i40e_netdev_to_pf(vsi->netdev);
int i;
- if (hook != NULL) {
-
- //if (unlikely(enable_debug))
- printk("[PF_RING-ZC] %s: detach %s\n", __FUNCTION__, vsi->netdev->name);
-
- if (atomic_read(&adapter->pfring_zc.usage_counter) > 0)
- printk("[PF_RING-ZC] %s: detaching %s while in use\n", __FUNCTION__, vsi->netdev->name);
-
- for (i = 0; i < vsi->num_queue_pairs; i++) {
- struct i40e_ring *rx_ring = vsi->rx_rings[i];
- struct i40e_ring *tx_ring = vsi->tx_rings[i];
- hook->zc_dev_handler(remove_device_mapping,
- NULL, // rx_info,
- NULL, // tx_info,
- NULL, /* Packet descriptors */
- NULL, /* Packet descriptors */
- (void*)pci_resource_start(pf->pdev, 0),
- pci_resource_len(pf->pdev, 0),
- rx_ring->queue_index, /* Channel Id */
- rx_ring->netdev,
- rx_ring->dev, /* for DMA mapping */
- intel_i40e,
- rx_ring->netdev->dev_addr,
- &rx_ring->pfring_zc.rx_tx.rx.packet_waitqueue,
- &rx_ring->pfring_zc.rx_tx.rx.interrupt_received,
- (void*)rx_ring,
- (void*)tx_ring,
- NULL, // wait_packet_function_ptr
- NULL // notify_function_ptr
- );
- }
+ //if (unlikely(enable_debug))
+ printk("[PF_RING-ZC] %s: detach %s\n", __FUNCTION__, vsi->netdev->name);
+
+ if (atomic_read(&adapter->pfring_zc.usage_counter) > 0)
+ printk("[PF_RING-ZC] %s: detaching %s while in use\n", __FUNCTION__, vsi->netdev->name);
+
+ for (i = 0; i < vsi->num_queue_pairs; i++) {
+ struct i40e_ring *rx_ring = vsi->rx_rings[i];
+ struct i40e_ring *tx_ring = vsi->tx_rings[i];
+ pfring_zc_dev_handler(remove_device_mapping,
+ NULL, // rx_info,
+ NULL, // tx_info,
+ NULL, /* Packet descriptors */
+ NULL, /* Packet descriptors */
+ (void*)pci_resource_start(pf->pdev, 0),
+ pci_resource_len(pf->pdev, 0),
+ rx_ring->queue_index, /* Channel Id */
+ rx_ring->netdev,
+ rx_ring->dev, /* for DMA mapping */
+ intel_i40e,
+ rx_ring->netdev->dev_addr,
+ &rx_ring->pfring_zc.rx_tx.rx.packet_waitqueue,
+ &rx_ring->pfring_zc.rx_tx.rx.interrupt_received,
+ (void*)rx_ring,
+ (void*)tx_ring,
+ NULL, // wait_packet_function_ptr
+ NULL // notify_function_ptr
+ );
}
}
#endif
diff --git a/drivers/intel/igb/igb-5.3.5.18-zc/src/igb_main.c b/drivers/intel/igb/igb-5.3.5.18-zc/src/igb_main.c
index 9965b52b..f5ea7912 100644
--- a/drivers/intel/igb/igb-5.3.5.18-zc/src/igb_main.c
+++ b/drivers/intel/igb/igb-5.3.5.18-zc/src/igb_main.c
@@ -1780,9 +1780,6 @@ static void igb_configure(struct igb_adapter *adapter)
#ifdef HAVE_PF_RING
{
- struct pfring_hooks *hook = (struct pfring_hooks*)adapter->netdev->pfring_ptr;
-
- if(hook != NULL) {
int i;
u16 cache_line_size;
@@ -1809,7 +1806,7 @@ static void igb_configure(struct igb_adapter *adapter)
tx_info.packet_memory_slot_len = rx_info.packet_memory_slot_len;
tx_info.descr_packet_memory_tot_len = tx_ring->size;
- hook->zc_dev_handler(add_device_mapping,
+ pfring_zc_dev_handler(add_device_mapping,
&rx_info,
&tx_info,
rx_ring->desc, /* Packet descriptors */
@@ -1830,8 +1827,6 @@ static void igb_configure(struct igb_adapter *adapter)
);
}
}
-
- }
#endif
}
@@ -2155,13 +2150,10 @@ void igb_down(struct igb_adapter *adapter)
#ifdef HAVE_PF_RING
{
- struct pfring_hooks *hook = (struct pfring_hooks*)adapter->netdev->pfring_ptr;
-
- if(hook != NULL) {
int i;
for (i = 0; i < adapter->num_rx_queues; i++) {
- hook->zc_dev_handler(remove_device_mapping,
+ pfring_zc_dev_handler(remove_device_mapping,
NULL, // rx_info,
NULL, // tx_info,
NULL, /* Packet descriptors */
@@ -2181,8 +2173,6 @@ void igb_down(struct igb_adapter *adapter)
);
}
}
-
- }
#endif
}
diff --git a/kernel/linux/pf_ring.h b/kernel/linux/pf_ring.h
index 17ea750a..1473ad84 100644
--- a/kernel/linux/pf_ring.h
+++ b/kernel/linux/pf_ring.h
@@ -37,9 +37,6 @@
#define DEFAULT_MIN_PKT_QUEUED 128
#define DEFAULT_POLL_WATERMARK_TIMEOUT 0
-/* Dirty hack I know, but what else shall I do man? */
-#define pfring_ptr ax25_ptr
-
#define FILTERING_SAMPLING_RATIO 10
/* Versioning */
@@ -1285,63 +1282,31 @@ typedef struct {
/* **************************************** */
-typedef void (*handle_pfring_zc_dev)(zc_dev_operation operation,
- mem_ring_info *rx_info,
- mem_ring_info *tx_info,
- void *rx_descr_packet_memory,
- void *tx_descr_packet_memory,
- void *phys_card_memory,
- u_int phys_card_memory_len,
- u_int channel_id,
- struct net_device *dev,
- struct device *hwdev,
- zc_dev_model device_model,
- u_char *device_address,
- wait_queue_head_t *packet_waitqueue,
- u_int8_t *interrupt_received,
- void *rx_adapter_ptr, void *tx_adapter_ptr,
- zc_dev_wait_packet wait_packet_function_ptr,
- zc_dev_notify dev_notify_function_ptr);
-
-extern handle_pfring_zc_dev get_ring_zc_dev_handler(void);
-extern void set_ring_zc_dev_handler(handle_pfring_zc_dev the_zc_device_handler);
-extern void do_ring_zc_dev_handler(zc_dev_operation operation,
- mem_ring_info *rx_info,
- mem_ring_info *tx_info,
- unsigned long *rx_packet_memory,
- void *rx_descr_packet_memory,
- unsigned long *tx_packet_memory,
- void *tx_descr_packet_memory,
- void *phys_card_memory,
- u_int phys_card_memory_len,
- u_int channel_id,
- struct net_device *dev,
- struct device *hwdev,
- zc_dev_model device_model,
- u_char *device_address,
- wait_queue_head_t * packet_waitqueue,
- u_int8_t * interrupt_received,
- void *rx_adapter_ptr, void *tx_adapter_ptr,
- zc_dev_wait_packet wait_packet_function_ptr,
- zc_dev_notify dev_notify_function_ptr);
-
-typedef int (*handle_ring_skb)(struct sk_buff *skb, u_char recv_packet,
- u_char real_skb,
- int32_t channel_id,
- u_int32_t num_rx_channels);
-typedef int (*handle_ring_buffer)(struct net_device *dev,
- char *data, int len);
-
-/* Hack to jump from a device directly to PF_RING */
-struct pfring_hooks {
- u_int32_t magic; /*
- It should be set to PF_RING
- and is MUST be the first one on this struct
- */
- handle_ring_skb ring_handler;
- handle_ring_buffer buffer_ring_handler;
- handle_pfring_zc_dev zc_dev_handler;
-};
+/* Exported functions - used by drivers */
+
+int pfring_skb_ring_handler(struct sk_buff *skb,
+ u_int8_t recv_packet,
+ u_int8_t real_skb /* 1=real skb, 0=faked skb */,
+ int32_t channel_id,
+ u_int32_t num_rx_channels);
+
+void pfring_zc_dev_handler(zc_dev_operation operation,
+ mem_ring_info *rx_info,
+ mem_ring_info *tx_info,
+ void *rx_descr_packet_memory,
+ void *tx_descr_packet_memory,
+ void *phys_card_memory,
+ u_int phys_card_memory_len,
+ u_int channel_id,
+ struct net_device *dev,
+ struct device *hwdev,
+ zc_dev_model device_model,
+ u_char *device_address,
+ wait_queue_head_t *packet_waitqueue,
+ u_int8_t *interrupt_received,
+ void *rx_adapter_ptr, void *tx_adapter_ptr,
+ zc_dev_wait_packet wait_packet_function_ptr,
+ zc_dev_notify dev_notify_function_ptr);
/* *************************************************************** */
diff --git a/kernel/pf_ring.c b/kernel/pf_ring.c
index fb2e06e8..2fe65c36 100644
--- a/kernel/pf_ring.c
+++ b/kernel/pf_ring.c
@@ -381,10 +381,6 @@ static inline void ring_read_unlock_inbh(void) { read_unlock(&ring_mgmt_lock);
static struct proto_ops ring_ops;
static struct proto ring_proto;
-static int skb_ring_handler(struct sk_buff *skb, u_char recv_packet,
- u_int8_t real_skb,
- int32_t channel_id, u_int32_t num_rx_channels);
-static int buffer_ring_handler(struct net_device *dev, char *data, int len);
static int remove_from_cluster(struct sock *sock, struct pf_ring_socket *pfr);
static int pfring_select_zc_dev(struct pf_ring_socket *pfr, zc_dev_mapping *mapping);
static int pfring_get_zc_dev(struct pf_ring_socket *pfr);
@@ -3854,7 +3850,7 @@ static struct sk_buff* defrag_skb(struct sk_buff *skb,
the ring due to lack of available space
*/
-static int skb_ring_handler(struct sk_buff *skb,
+int pfring_skb_ring_handler(struct sk_buff *skb,
u_int8_t recv_packet,
u_int8_t real_skb /* 1=real skb, 0=faked skb */,
/*
@@ -4156,28 +4152,7 @@ static int skb_ring_handler(struct sk_buff *skb,
return(rc); /* 0 = packet not handled */
}
-/* ********************************** */
-
-static int buffer_ring_handler(struct net_device *dev, char *data, int len)
-{
- struct sk_buff skb;
-
- skb.dev = dev;
- skb.len = len;
- skb.data = (u_char *) data;
- skb.data_len = len;
-
- /* BD - API changed for time keeping */
-#if(LINUX_VERSION_CODE < KERNEL_VERSION(4,10,0))
- skb.tstamp.tv64 = 0;
-#else
- skb.tstamp = 0;
-#endif
-
- return(skb_ring_handler(&skb, 1, 0 /* fake skb */,
- -1 /* unknown: any channel */,
- UNKNOWN_NUM_RX_CHANNELS));
-}
+EXPORT_SYMBOL(pfring_skb_ring_handler);
/* ********************************** */
@@ -4193,11 +4168,11 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
if (skb->pkt_type == PACKET_OUTGOING && active_zc_socket[dev->ifindex] == 2)
return 0;
- rc = skb_ring_handler(skb,
- skb->pkt_type != PACKET_OUTGOING,
- 1 /* real_skb */,
- -1 /* unknown: any channel */,
- UNKNOWN_NUM_RX_CHANNELS);
+ rc = pfring_skb_ring_handler(skb,
+ skb->pkt_type != PACKET_OUTGOING,
+ 1 /* real_skb */,
+ 1 /* unknown: any channel */,
+ UNKNOWN_NUM_RX_CHANNELS);
kfree_skb(skb);
@@ -7609,23 +7584,23 @@ static int ring_getsockopt(struct socket *sock,
/* ************************************* */
-void zc_dev_handler(zc_dev_operation operation,
- mem_ring_info *rx_info,
- mem_ring_info *tx_info,
- void *rx_descr_packet_memory,
- void *tx_descr_packet_memory,
- void *phys_card_memory,
- u_int phys_card_memory_len,
- u_int channel_id,
- struct net_device *dev,
- struct device *hwdev,
- zc_dev_model device_model,
- u_char *device_address,
- wait_queue_head_t *packet_waitqueue,
- u_int8_t *interrupt_received,
- void *rx_adapter_ptr, void *tx_adapter_ptr,
- zc_dev_wait_packet wait_packet_function_ptr,
- zc_dev_notify dev_notify_function_ptr)
+void pfring_zc_dev_handler(zc_dev_operation operation,
+ mem_ring_info *rx_info,
+ mem_ring_info *tx_info,
+ void *rx_descr_packet_memory,
+ void *tx_descr_packet_memory,
+ void *phys_card_memory,
+ u_int phys_card_memory_len,
+ u_int channel_id,
+ struct net_device *dev,
+ struct device *hwdev,
+ zc_dev_model device_model,
+ u_char *device_address,
+ wait_queue_head_t *packet_waitqueue,
+ u_int8_t *interrupt_received,
+ void *rx_adapter_ptr, void *tx_adapter_ptr,
+ zc_dev_wait_packet wait_packet_function_ptr,
+ zc_dev_notify dev_notify_function_ptr)
{
pf_ring_device *dev_ptr;
@@ -7728,6 +7703,8 @@ void zc_dev_handler(zc_dev_operation operation,
zc_devices_list_size);
}
+EXPORT_SYMBOL(pfring_zc_dev_handler);
+
/* ************************************* */
static int ring_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
@@ -7807,15 +7784,6 @@ static struct proto ring_proto = {
/* ************************************ */
-static struct pfring_hooks ring_hooks = {
- .magic = PF_RING,
- .ring_handler = skb_ring_handler,
- .buffer_ring_handler = buffer_ring_handler,
- .zc_dev_handler = zc_dev_handler,
-};
-
-/* ************************************ */
-
void remove_device_from_proc(pf_ring_net *netns, pf_ring_device *dev_ptr) {
if (dev_ptr->proc_entry == NULL)
return;
@@ -8078,7 +8046,6 @@ static int ring_notifier(struct notifier_block *this, unsigned long msg, void *d
struct net_device *dev = netdev_notifier_info_to_dev(data);
pf_ring_device *dev_ptr;
struct list_head *ptr, *tmp_ptr;
- struct pfring_hooks *hook;
int if_name_clash = 0;
if(debug_on(2)) {
@@ -8167,13 +8134,6 @@ static int ring_notifier(struct notifier_block *this, unsigned long msg, void *d
return NOTIFY_DONE;
}
- hook = (struct pfring_hooks *) dev->pfring_ptr;
- if(hook && (hook->magic != PF_RING)) {
- printk("[PF_RING] %s %s: interface already in use by another socket not compatible with PF_RING\n",
- __FUNCTION__, dev->name);
- return NOTIFY_DONE;
- }
-
switch (msg) {
case NETDEV_POST_INIT:
case NETDEV_PRE_UP:
@@ -8181,7 +8141,7 @@ static int ring_notifier(struct notifier_block *this, unsigned long msg, void *d
case NETDEV_DOWN:
break;
case NETDEV_REGISTER:
- debug_printk(2, "%s: [REGISTER][ifindex: %u pfring_ptr=%p hook=%p]\n", dev->name, dev->ifindex, dev->pfring_ptr, &ring_hooks);
+ debug_printk(2, "%s: [REGISTER][ifindex: %u]\n", dev->name, dev->ifindex);
/* safety check */
list_for_each_safe(ptr, tmp_ptr, &ring_aware_device_list) {
@@ -8194,7 +8154,6 @@ static int ring_notifier(struct notifier_block *this, unsigned long msg, void *d
}
if(!if_name_clash) {
- dev->pfring_ptr = &ring_hooks;
if(add_device_to_ring_list(dev) != 0) {
printk("[PF_RING] Error in add_device_to_ring_list(%s)\n", dev->name);
}
@@ -8202,13 +8161,9 @@ static int ring_notifier(struct notifier_block *this, unsigned long msg, void *d
break;
case NETDEV_UNREGISTER:
- debug_printk(2, "%s: [UNREGISTER][ifindex: %u pfring_ptr=%p]\n", dev->name, dev->ifindex, dev->pfring_ptr);
+ debug_printk(2, "%s: [UNREGISTER][ifindex: %u]\n", dev->name, dev->ifindex);
- hook = (struct pfring_hooks *) dev->pfring_ptr;
- if(hook && (hook->magic == PF_RING)) {
- remove_device_from_ring_list(dev);
- dev->pfring_ptr = NULL;
- }
+ remove_device_from_ring_list(dev);
/* We don't have to worry updating rules that might have used this
device (just removed) as reflection device. This because whenever
we set a rule with reflection, we do dev_put() so such device is
@@ -8329,7 +8284,6 @@ static struct pernet_operations ring_net_ops = {
static void __exit ring_exit(void)
{
struct list_head *ptr, *tmp_ptr;
- struct pfring_hooks *hook;
pf_ring_net *netns;
pfring_enabled = 0;
@@ -8340,8 +8294,6 @@ static void __exit ring_exit(void)
list_for_each_safe(ptr, tmp_ptr, &ring_aware_device_list) {
pf_ring_device *dev_ptr = list_entry(ptr, pf_ring_device, device_list);
- hook = (struct pfring_hooks *) dev_ptr->dev->pfring_ptr;
-
write_lock(&netns_lock);
netns = netns_lookup(dev_net(dev_ptr->dev));
@@ -8351,15 +8303,6 @@ static void __exit ring_exit(void)
write_unlock(&netns_lock);
- if (hook != NULL) {
- if(hook->magic == PF_RING) {
- debug_printk(2, "Unregister hook for %s\n", dev_ptr->device_name);
- dev_ptr->dev->pfring_ptr = NULL; /* Unhook PF_RING */
- }
- } else {
- printk("[PF_RING] PF_RING hook was not set for %s\n", dev_ptr->device_name);
- }
-
list_del(ptr);
kfree(dev_ptr);
}

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