* [PATCH 3/3] kni: move more kernel version check to compat header
2016-05-30 11:22 [PATCH 1/3] kni: fix compile error for Linux 4.7 Ferruh Yigit
2016-05-30 11:22 ` [PATCH 2/3] kni: compat.h syntax update Ferruh Yigit
@ 2016-05-30 11:22 ` Ferruh Yigit
2016-06-07 9:22 ` [PATCH 1/3] kni: fix compile error for Linux 4.7 Thomas Monjalon
2 siblings, 0 replies; 4+ messages in thread
From: Ferruh Yigit @ 2016-05-30 11:22 UTC (permalink / raw)
To: dev; +Cc: Helin Zhang, Ferruh Yigit
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
lib/librte_eal/linuxapp/kni/compat.h | 9 +++++++++
lib/librte_eal/linuxapp/kni/kni_misc.c | 30 ++++++++++++++++--------------
lib/librte_eal/linuxapp/kni/kni_net.c | 8 ++++----
3 files changed, 29 insertions(+), 18 deletions(-)
diff --git a/lib/librte_eal/linuxapp/kni/compat.h b/lib/librte_eal/linuxapp/kni/compat.h
index d10040d..647ba3c 100644
--- a/lib/librte_eal/linuxapp/kni/compat.h
+++ b/lib/librte_eal/linuxapp/kni/compat.h
@@ -14,16 +14,25 @@
#endif /* < 2.6.39 */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 33)
+#define HAVE_SIMPLIFIED_PERNET_OPERATIONS
+#endif
+
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 35)
#define sk_sleep(s) (s)->sk_sleep
#endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0)
+#define HAVE_CHANGE_CARRIER_CB
+#endif
+
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)
#define HAVE_IOV_ITER_MSGHDR
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 1, 0)
#define HAVE_KIOCB_MSG_PARAM
+#define HAVE_REBUILD_HEADER
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
diff --git a/lib/librte_eal/linuxapp/kni/kni_misc.c b/lib/librte_eal/linuxapp/kni/kni_misc.c
index e1ec443..4f34232 100644
--- a/lib/librte_eal/linuxapp/kni/kni_misc.c
+++ b/lib/librte_eal/linuxapp/kni/kni_misc.c
@@ -35,6 +35,8 @@
#include <net/netns/generic.h>
#include <exec-env/rte_kni_common.h>
+
+#include "compat.h"
#include "kni_dev.h"
MODULE_LICENSE("Dual BSD/GPL");
@@ -105,7 +107,7 @@ struct kni_net {
static int __net_init kni_init_net(struct net *net)
{
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32)
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
struct kni_net *knet = net_generic(net, kni_net_id);
#else
struct kni_net *knet;
@@ -116,7 +118,7 @@ static int __net_init kni_init_net(struct net *net)
ret = -ENOMEM;
return ret;
}
-#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32) */
+#endif
/* Clear the bit of device in use */
clear_bit(KNI_DEV_IN_USE_BIT_NUM, &knet->device_in_use);
@@ -124,7 +126,7 @@ static int __net_init kni_init_net(struct net *net)
init_rwsem(&knet->kni_list_lock);
INIT_LIST_HEAD(&knet->kni_list_head);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32)
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
return 0;
#else
ret = net_assign_generic(net, kni_net_id, knet);
@@ -132,25 +134,25 @@ static int __net_init kni_init_net(struct net *net)
kfree(knet);
return ret;
-#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32) */
+#endif
}
static void __net_exit kni_exit_net(struct net *net)
{
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 32)
+#ifndef HAVE_SIMPLIFIED_PERNET_OPERATIONS
struct kni_net *knet = net_generic(net, kni_net_id);
kfree(knet);
-#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32) */
+#endif
}
static struct pernet_operations kni_net_ops = {
.init = kni_init_net,
.exit = kni_exit_net,
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32)
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
.id = &kni_net_id,
.size = sizeof(struct kni_net),
-#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32) */
+#endif
};
static int __init
@@ -165,11 +167,11 @@ kni_init(void)
return -EINVAL;
}
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32)
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
rc = register_pernet_subsys(&kni_net_ops);
#else
rc = register_pernet_gen_subsys(&kni_net_id, &kni_net_ops);
-#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32) */
+#endif
if (rc)
return -EPERM;
@@ -187,11 +189,11 @@ kni_init(void)
return 0;
out:
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32)
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
unregister_pernet_subsys(&kni_net_ops);
#else
register_pernet_gen_subsys(&kni_net_id, &kni_net_ops);
-#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32) */
+#endif
return rc;
}
@@ -199,11 +201,11 @@ static void __exit
kni_exit(void)
{
misc_deregister(&kni_misc);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32)
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
unregister_pernet_subsys(&kni_net_ops);
#else
register_pernet_gen_subsys(&kni_net_id, &kni_net_ops);
-#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 32) */
+#endif
KNI_PRINT("####### DPDK kni module unloaded #######\n");
}
diff --git a/lib/librte_eal/linuxapp/kni/kni_net.c b/lib/librte_eal/linuxapp/kni/kni_net.c
index 076372c..fc82193 100644
--- a/lib/librte_eal/linuxapp/kni/kni_net.c
+++ b/lib/librte_eal/linuxapp/kni/kni_net.c
@@ -641,7 +641,7 @@ kni_net_header(struct sk_buff *skb, struct net_device *dev,
/*
* Re-fill the eth header
*/
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 1, 0))
+#ifdef HAVE_REBUILD_HEADER
static int
kni_net_rebuild_header(struct sk_buff *skb)
{
@@ -671,7 +671,7 @@ static int kni_net_set_mac(struct net_device *netdev, void *p)
return 0;
}
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0))
+#ifdef HAVE_CHANGE_CARRIER_CB
static int kni_net_change_carrier(struct net_device *dev, bool new_carrier)
{
if (new_carrier)
@@ -684,7 +684,7 @@ static int kni_net_change_carrier(struct net_device *dev, bool new_carrier)
static const struct header_ops kni_net_header_ops = {
.create = kni_net_header,
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 1, 0))
+#ifdef HAVE_REBUILD_HEADER
.rebuild = kni_net_rebuild_header,
#endif /* < 4.1.0 */
.cache = NULL, /* disable caching */
@@ -701,7 +701,7 @@ static const struct net_device_ops kni_net_netdev_ops = {
.ndo_get_stats = kni_net_stats,
.ndo_tx_timeout = kni_net_tx_timeout,
.ndo_set_mac_address = kni_net_set_mac,
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0))
+#ifdef HAVE_CHANGE_CARRIER_CB
.ndo_change_carrier = kni_net_change_carrier,
#endif
};
--
2.5.5
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