rpms/kernel/devel linux-2.6-kprobes-add-regs_return_value-helper.patch, NONE, 1.1 linux-2.6-kprobes-documentation.patch, NONE, 1.1 linux-2.6-kprobes-portable.patch, NONE, 1.1 kernel-2.6.spec, 1.2651, 1.2652

[fedora-cvs-commits at redhat.com]

Author: davej

Update of /cvs/dist/rpms/kernel/devel
In directory cvs.devel.redhat.com:/tmp/cvs-serv16482

Modified Files:
	kernel-2.6.spec 
Added Files:
	linux-2.6-kprobes-add-regs_return_value-helper.patch 
	linux-2.6-kprobes-documentation.patch 
	linux-2.6-kprobes-portable.patch 
Log Message:
kprobes changes to make systemtap's life easier

linux-2.6-kprobes-add-regs_return_value-helper.patch:
 asm-i386/ptrace.h    |    3 +++
 asm-ia64/ptrace.h    |    3 +++
 asm-powerpc/ptrace.h |    2 ++
 asm-s390/ptrace.h    |    1 +
 asm-x86_64/ptrace.h  |    2 ++
 5 files changed, 11 insertions(+)

--- NEW FILE linux-2.6-kprobes-add-regs_return_value-helper.patch ---
diff -rup a/include/asm-i386/ptrace.h b/include/asm-i386/ptrace.h
--- a/include/asm-i386/ptrace.h	2006-06-18 01:49:35.000000000 +0000
+++ b/include/asm-i386/ptrace.h	2006-08-25 16:36:01.426620000 +0000
@@ -79,7 +79,10 @@ static inline int user_mode_vm(struct pt
 {
 	return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0;
 }
+
 #define instruction_pointer(regs) ((regs)->eip)
+#define regs_return_value(regs) ((regs)->eax)
+
 #if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
 extern unsigned long profile_pc(struct pt_regs *regs);
 #else
diff -rup a/include/asm-ia64/ptrace.h b/include/asm-ia64/ptrace.h
--- a/include/asm-ia64/ptrace.h	2006-08-25 15:57:41.053661000 +0000
+++ b/include/asm-ia64/ptrace.h	2006-08-25 16:32:00.910820000 +0000
@@ -237,6 +237,9 @@ struct switch_stack {
  * the canonical representation by adding to instruction pointer.
  */
 # define instruction_pointer(regs) ((regs)->cr_iip + ia64_psr(regs)->ri)
+
+#define regs_return_value(regs) ((regs)->r8)
+
 /* Conserve space in histogram by encoding slot bits in address
  * bits 2 and 3 rather than bits 0 and 1.
  */
diff -rup a/include/asm-powerpc/ptrace.h b/include/asm-powerpc/ptrace.h
--- a/include/asm-powerpc/ptrace.h	2006-08-25 15:57:44.472720000 +0000
+++ b/include/asm-powerpc/ptrace.h	2006-08-25 16:32:00.916820000 +0000
@@ -73,6 +73,8 @@ struct pt_regs {
 #ifndef __ASSEMBLY__
 
 #define instruction_pointer(regs) ((regs)->nip)
+#define regs_return_value(regs) ((regs)->gpr[3])
+
 #ifdef CONFIG_SMP
 extern unsigned long profile_pc(struct pt_regs *regs);
 #else
diff -rup a/include/asm-s390/ptrace.h b/include/asm-s390/ptrace.h
--- a/include/asm-s390/ptrace.h	2006-08-25 15:57:44.980740000 +0000
+++ b/include/asm-s390/ptrace.h	2006-08-25 16:32:00.933820000 +0000
@@ -472,6 +472,7 @@ struct user_regs_struct
 
 #define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0)
 #define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN)
+#define regs_return_value(regs)((regs)->gprs[2])
 #define profile_pc(regs) instruction_pointer(regs)
 extern void show_regs(struct pt_regs * regs);
 #endif
diff -rup a/include/asm-x86_64/ptrace.h b/include/asm-x86_64/ptrace.h
--- a/include/asm-x86_64/ptrace.h	2006-06-18 01:49:35.000000000 +0000
+++ b/include/asm-x86_64/ptrace.h	2006-08-25 16:32:00.960820000 +0000
@@ -84,6 +84,8 @@ struct pt_regs {
 #define user_mode(regs) (!!((regs)->cs & 3))
 #define user_mode_vm(regs) user_mode(regs)
 #define instruction_pointer(regs) ((regs)->rip)
+#define regs_return_value(regs) ((regs)->rax)
+
 extern unsigned long profile_pc(struct pt_regs *regs);
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 

linux-2.6-kprobes-documentation.patch:
 kprobes.txt |   89 +++++++++++++++++++++++++++++++++++++-----------------------
 1 files changed, 56 insertions(+), 33 deletions(-)

--- NEW FILE linux-2.6-kprobes-documentation.patch ---
diff -rup a/Documentation/kprobes.txt b/Documentation/kprobes.txt
--- a/Documentation/kprobes.txt	2006-06-18 01:49:35.000000000 +0000
+++ b/Documentation/kprobes.txt	2006-08-25 16:39:03.338260000 +0000
@@ -151,9 +151,9 @@ So that you can load and unload Kprobes-
 make sure "Loadable module support" (CONFIG_MODULES) and "Module
 unloading" (CONFIG_MODULE_UNLOAD) are set to "y".
 
-You may also want to ensure that CONFIG_KALLSYMS and perhaps even
-CONFIG_KALLSYMS_ALL are set to "y", since kallsyms_lookup_name()
-is a handy, version-independent way to find a function's address.
+Also make sure that CONFIG_KALLSYMS and perhaps even CONFIG_KALLSYMS_ALL
+are set to "y", since kallsyms_lookup_name() is used by the in-kernel
+kprobe address resolution code.
 
 If you need to insert a probe in the middle of a function, you may find
 it useful to "Compile the kernel with debug info" (CONFIG_DEBUG_INFO),
@@ -179,6 +179,27 @@ occurs during execution of kp->pre_handl
 or during single-stepping of the probed instruction, Kprobes calls
 kp->fault_handler.  Any or all handlers can be NULL.
 
+NOTE:
+1. With the introduction of the "symbol_name" field to struct kprobe,
+the probepoint address resolution will now be taken care of by the kernel.
+The following will now work:
+
+	kp.symbol_name = "symbol_name";
+
+(64-bit powerpc intricacies such as function descriptors are handled
+transparently)
+
+2. Use the "offset" field of struct kprobe if the offset into the symbol
+to install a probepoint is known. This field is used to calculate the
+probepoint.
+
+3. Specify either the kprobe "symbol_name" OR the "addr". If both are
+specified, kprobe registration will fail with -EINVAL.
+
+4. With CISC architectures (such as i386 and x86_64), the kprobes code
+does not validate if the kprobe.addr is at an instruction boundary.
+Use "offset" with caution.
+
 register_kprobe() returns 0 on success, or a negative errno otherwise.
 
 User's pre-handler (kp->pre_handler):
@@ -225,6 +246,12 @@ control to Kprobes.)  If the probed func
 fastcall, or anything else that affects how args are passed, the
 handler's declaration must match.
 
+NOTE: A macro JPROBE_ENTRY is provided to handle architecture-specific
+aliasing of jp->entry. In the interest of portability, it is advised
+to use:
+
+	jp->entry = JPROBE_ENTRY(handler);
+
 register_jprobe() returns 0 on success, or a negative errno otherwise.
 
 4.3 register_kretprobe
@@ -251,6 +278,11 @@ of interest:
 - ret_addr: the return address
 - rp: points to the corresponding kretprobe object
 - task: points to the corresponding task struct
+
+The regs_return_value(regs) macro provides a simple abstraction to
+extract the return value from the appropriate register as defined by
+the architecture's ABI.
+
 The handler's return value is currently ignored.
 
 4.4 unregister_*probe
@@ -369,7 +401,6 @@ stack trace and selected i386 registers 
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/kprobes.h>
-#include <linux/kallsyms.h>
 #include <linux/sched.h>
 
 /*For each probe you need to allocate a kprobe structure*/
@@ -403,18 +434,14 @@ int handler_fault(struct kprobe *p, stru
 	return 0;
 }
 
-int init_module(void)
+static int __init kprobe_init(void)
 {
 	int ret;
 	kp.pre_handler = handler_pre;
 	kp.post_handler = handler_post;
 	kp.fault_handler = handler_fault;
-	kp.addr = (kprobe_opcode_t*) kallsyms_lookup_name("do_fork");
-	/* register the kprobe now */
-	if (!kp.addr) {
-		printk("Couldn't find %s to plant kprobe\n", "do_fork");
-		return -1;
-	}
+	kp.symbol_name = "do_fork";
+
 	if ((ret = register_kprobe(&kp) < 0)) {
 		printk("register_kprobe failed, returned %d\n", ret);
 		return -1;
@@ -423,12 +450,14 @@ int init_module(void)
 	return 0;
 }
 
-void cleanup_module(void)
+static void __exit kprobe_exit(void)
 {
 	unregister_kprobe(&kp);
 	printk("kprobe unregistered\n");
 }
 
+module_init(kprobe_init)
+module_exit(kprobe_exit)
 MODULE_LICENSE("GPL");
 ----- cut here -----
 
@@ -463,7 +492,6 @@ the arguments of do_fork().
 #include <linux/fs.h>
 #include <linux/uio.h>
 #include <linux/kprobes.h>
-#include <linux/kallsyms.h>
 
 /*
  * Jumper probe for do_fork.
@@ -485,17 +513,13 @@ long jdo_fork(unsigned long clone_flags,
 }
 
 static struct jprobe my_jprobe = {
-	.entry = (kprobe_opcode_t *) jdo_fork
+	.entry = JPROBE_ENTRY(jdo_fork)
 };
 
-int init_module(void)
+static int __init jprobe_init(void)
 {
 	int ret;
-	my_jprobe.kp.addr = (kprobe_opcode_t *) kallsyms_lookup_name("do_fork");
-	if (!my_jprobe.kp.addr) {
-		printk("Couldn't find %s to plant jprobe\n", "do_fork");
-		return -1;
-	}
+	my_jprobe.kp.symbol_name = "do_fork";
 
 	if ((ret = register_jprobe(&my_jprobe)) <0) {
 		printk("register_jprobe failed, returned %d\n", ret);
@@ -506,12 +530,14 @@ int init_module(void)
 	return 0;
 }
 
-void cleanup_module(void)
+static void __exit jprobe_exit(void)
 {
 	unregister_jprobe(&my_jprobe);
 	printk("jprobe unregistered\n");
 }
 
+module_init(jprobe_init)
+module_exit(jprobe_exit)
 MODULE_LICENSE("GPL");
 ----- cut here -----
 
@@ -530,16 +556,13 @@ report failed calls to sys_open().
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/kprobes.h>
-#include <linux/kallsyms.h>
 
 static const char *probed_func = "sys_open";
 
 /* Return-probe handler: If the probed function fails, log the return value. */
 static int ret_handler(struct kretprobe_instance *ri, struct pt_regs *regs)
 {
-	// Substitute the appropriate register name for your architecture --
-	// e.g., regs->rax for x86_64, regs->gpr[3] for ppc64.
-	int retval = (int) regs->eax;
+	int retval = return_value(regs);
 	if (retval < 0) {
 		printk("%s returns %d\n", probed_func, retval);
 	}
@@ -552,15 +575,11 @@ static struct kretprobe my_kretprobe = {
 	.maxactive = 20
 };
 
-int init_module(void)
+static int __init kretprobe_init(void)
 {
 	int ret;
-	my_kretprobe.kp.addr =
-		(kprobe_opcode_t *) kallsyms_lookup_name(probed_func);
-	if (!my_kretprobe.kp.addr) {
-		printk("Couldn't find %s to plant return probe\n", probed_func);
-		return -1;
-	}
+	my_kretprobe.kp.symbol_name = (char *)probed_func;
+
 	if ((ret = register_kretprobe(&my_kretprobe)) < 0) {
 		printk("register_kretprobe failed, returned %d\n", ret);
 		return -1;
@@ -569,7 +588,7 @@ int init_module(void)
 	return 0;
 }
 
-void cleanup_module(void)
+static void __exit kretprobe_exit(void)
 {
 	unregister_kretprobe(&my_kretprobe);
 	printk("kretprobe unregistered\n");
@@ -578,6 +597,8 @@ void cleanup_module(void)
 		my_kretprobe.nmissed, probed_func);
 }
 
+module_init(kretprobe_init)
+module_exit(kretprobe_exit)
 MODULE_LICENSE("GPL");
 ----- cut here -----
 
@@ -590,3 +611,5 @@ messages.)
 For additional information on Kprobes, refer to the following URLs:
 http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
 http://www.redhat.com/magazine/005mar05/features/kprobes/
+http://www-users.cs.umn.edu/~boutcher/kprobes/
+http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)

linux-2.6-kprobes-portable.patch:
 arch/i386/Kconfig             |    2 +-
 arch/ia64/Kconfig             |    2 +-
 arch/powerpc/Kconfig          |    2 +-
 arch/sparc64/Kconfig          |    2 +-
 arch/x86_64/Kconfig           |    2 +-
 include/asm-powerpc/kprobes.h |   22 ++++++++++++++++++++++
 include/linux/kprobes.h       |    6 ++++++
 kernel/kallsyms.c             |    1 -
 kernel/kprobes.c              |   26 ++++++++++++++++++++++++++
 net/ipv4/tcp_probe.c          |    6 ++++--
 10 files changed, 63 insertions(+), 8 deletions(-)

--- NEW FILE linux-2.6-kprobes-portable.patch ---
diff -rup a/arch/i386/Kconfig b/arch/i386/Kconfig
--- a/arch/i386/Kconfig	2006-09-06 13:19:06.626705000 +0000
+++ b/arch/i386/Kconfig	2006-09-06 13:32:48.266766000 +0000
@@ -1183,7 +1183,7 @@ source "arch/i386/oprofile/Kconfig"
 
 config KPROBES
 	bool "Kprobes (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && MODULES
+	depends on KALLSYMS && EXPERIMENTAL && MODULES
 	help
 	  Kprobes allows you to trap at almost any kernel address and
 	  execute a callback function.  register_kprobe() establishes
diff -rup a/arch/ia64/Kconfig b/arch/ia64/Kconfig
--- a/arch/ia64/Kconfig	2006-09-06 13:18:44.867220000 +0000
+++ b/arch/ia64/Kconfig	2006-09-06 13:32:48.276767000 +0000
@@ -562,7 +562,7 @@ source "arch/ia64/oprofile/Kconfig"
 
 config KPROBES
 	bool "Kprobes (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && MODULES
+	depends on KALLSYMS && EXPERIMENTAL && MODULES
 	help
 	  Kprobes allows you to trap at almost any kernel address and
 	  execute a callback function.  register_kprobe() establishes
diff -rup a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
--- a/arch/powerpc/Kconfig	2006-09-06 13:18:38.214089000 +0000
+++ b/arch/powerpc/Kconfig	2006-09-06 13:32:48.286767000 +0000
@@ -1075,7 +1075,7 @@ source "arch/powerpc/oprofile/Kconfig"
 
 config KPROBES
 	bool "Kprobes (EXPERIMENTAL)"
-	depends on PPC64 && EXPERIMENTAL && MODULES
+	depends on PPC64 && KALLSYMS && EXPERIMENTAL && MODULES
 	help
 	  Kprobes allows you to trap at almost any kernel address and
 	  execute a callback function.  register_kprobe() establishes
diff -rup a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
--- a/arch/sparc64/Kconfig	2006-09-06 13:17:28.086544000 +0000
+++ b/arch/sparc64/Kconfig	2006-09-06 13:32:48.294766000 +0000
@@ -416,7 +416,7 @@ source "arch/sparc64/oprofile/Kconfig"
 
 config KPROBES
 	bool "Kprobes (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && MODULES
+	depends on KALLSYMS && EXPERIMENTAL && MODULES
 	help
 	  Kprobes allows you to trap at almost any kernel address and
 	  execute a callback function.  register_kprobe() establishes
diff -rup a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
--- a/arch/x86_64/Kconfig	2006-09-06 13:18:45.263243000 +0000
+++ b/arch/x86_64/Kconfig	2006-09-06 13:32:48.302767000 +0000
@@ -686,7 +686,7 @@ source "arch/x86_64/oprofile/Kconfig"
 
 config KPROBES
 	bool "Kprobes (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && MODULES
+	depends on KALLSYMS && EXPERIMENTAL && MODULES
 	help
 	  Kprobes allows you to trap at almost any kernel address and
 	  execute a callback function.  register_kprobe() establishes
diff -rup a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h
--- a/include/asm-powerpc/kprobes.h	2006-09-06 13:18:17.894626000 +0000
+++ b/include/asm-powerpc/kprobes.h	2006-09-06 13:36:19.027386000 +0000
@@ -44,6 +44,28 @@ typedef unsigned int kprobe_opcode_t;
 #define IS_TDI(instr)		(((instr) & 0xfc000000) == 0x08000000)
 #define IS_TWI(instr)		(((instr) & 0xfc000000) == 0x0c000000)
 
+/*
+ * 64bit powerpc uses function descriptors.
+ * Handle cases where:
+ * 		- User passes a <.symbol> or <module:.symbol>
+ * 		- User passes a <symbol> or <module:symbol>
+ * 		- User passes a non-existant symbol, kallsyms_lookup_name
+ * 		  returns 0. Don't deref the NULL pointer in that case
+ */
+#define kprobe_lookup_name(name, addr)					\
+{									\
+	addr = (kprobe_opcode_t *)kallsyms_lookup_name(name);		\
+	if (addr) {							\
+		char *colon;						\
+		if ((colon = strchr(name, ':')) != NULL) {		\
+			colon++;					\
+			if (*colon != '\0' && *colon != '.')		\
+				addr = *(kprobe_opcode_t **)addr;	\
+		} else if (name[0] != '.')				\
+			addr = *(kprobe_opcode_t **)addr;		\
+	}								\
+}
+
 #define JPROBE_ENTRY(pentry)	(kprobe_opcode_t *)((func_descr_t *)pentry)
 
 #define is_trap(instr)	(IS_TW(instr) || IS_TD(instr) || \
diff -rup a/include/linux/kprobes.h b/include/linux/kprobes.h
--- a/include/linux/kprobes.h	2006-09-06 13:18:21.991714000 +0000
+++ b/include/linux/kprobes.h	2006-09-06 13:32:48.316766000 +0000
@@ -77,6 +77,12 @@ struct kprobe {
 	/* location of the probe point */
 	kprobe_opcode_t *addr;
 
+	/* Allow user to indicate symbol name of the probe point */
+	char *symbol_name;
+
+	/* Offset into the symbol */
+	unsigned int offset;
+
 	/* Called before addr is executed. */
 	kprobe_pre_handler_t pre_handler;
 
diff -rup a/kernel/kallsyms.c b/kernel/kallsyms.c
--- a/kernel/kallsyms.c	2006-09-06 13:18:25.018781000 +0000
+++ b/kernel/kallsyms.c	2006-09-06 13:32:48.324767000 +0000
@@ -154,7 +154,6 @@ unsigned long kallsyms_lookup_name(const
 	}
 	return module_kallsyms_lookup_name(name);
 }
-EXPORT_SYMBOL_GPL(kallsyms_lookup_name);
 
 /*
  * Lookup an address
diff -rup a/kernel/kprobes.c b/kernel/kprobes.c
--- a/kernel/kprobes.c	2006-09-06 13:18:25.041780000 +0000
+++ b/kernel/kprobes.c	2006-09-06 13:32:48.333767000 +0000
@@ -37,6 +37,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/moduleloader.h>
+#include <linux/kallsyms.h>
 #include <asm-generic/sections.h>
 #include <asm/cacheflush.h>
 #include <asm/errno.h>
@@ -45,6 +46,16 @@
 #define KPROBE_HASH_BITS 6
 #define KPROBE_TABLE_SIZE (1 << KPROBE_HASH_BITS)
 
+
+/*
+ * Some oddball architectures like 64bit powerpc have function descriptors
+ * so this must be overridable.
+ */
+#ifndef kprobe_lookup_name
+#define kprobe_lookup_name(name, addr) \
+	addr = ((kprobe_opcode_t *)(kallsyms_lookup_name(name)))
+#endif
+
 static struct hlist_head kprobe_table[KPROBE_TABLE_SIZE];
 static struct hlist_head kretprobe_inst_table[KPROBE_TABLE_SIZE];
 static atomic_t kprobe_count;
@@ -447,6 +458,21 @@ static int __kprobes __register_kprobe(s
 	struct kprobe *old_p;
 	struct module *probed_mod;
 
+	/*
+	 * If we have a symbol_name argument look it up,
+	 * and add it to the address.  That way the addr
+	 * field can either be global or relative to a symbol.
+	 */
+	if (p->symbol_name) {
+		if (p->addr)
+			return -EINVAL;
+		kprobe_lookup_name(p->symbol_name, p->addr);
+	}
+
+	if (!p->addr)
+		return -EINVAL;
+	p->addr = (kprobe_opcode_t *)(((char *)p->addr)+ p->offset);
+
 	if ((!kernel_text_address((unsigned long) p->addr)) ||
 		in_kprobes_functions((unsigned long) p->addr))
 		return -EINVAL;
diff -rup a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
--- a/net/ipv4/tcp_probe.c	2006-09-06 13:18:28.794868000 +0000
+++ b/net/ipv4/tcp_probe.c	2006-09-06 13:32:48.341766000 +0000
@@ -99,8 +99,10 @@ static int jtcp_sendmsg(struct kiocb *io
 }
 
 static struct jprobe tcp_send_probe = {
-	.kp = { .addr = (kprobe_opcode_t *) &tcp_sendmsg, },
-	.entry = (kprobe_opcode_t *) &jtcp_sendmsg,
+	.kp = {
+		.symbol_name	= "tcp_sendmsg",
+	},
+	.entry	= JPROBE_ENTRY(jtcp_sendmsg),
 };
 
 


Index: kernel-2.6.spec
===================================================================
RCS file: /cvs/dist/rpms/kernel/devel/kernel-2.6.spec,v
retrieving revision 1.2651
retrieving revision 1.2652
diff -u -r1.2651 -r1.2652
--- kernel-2.6.spec	14 Sep 2006 15:21:49 -0000	1.2651
+++ kernel-2.6.spec	14 Sep 2006 17:57:05 -0000	1.2652
@@ -511,6 +511,11 @@
 # Infiniband driver
 Patch2600: linux-2.6-openib-sdp.patch
 
+# kprobes changes.
+Patch2700: linux-2.6-kprobes-portable.patch
+Patch2701: linux-2.6-kprobes-documentation.patch
+Patch2702: linux-2.6-kprobes-add-regs_return_value-helper.patch
+
 #
 # 10000 to 20000 is for stuff that has to come last due to the
 # amount of drivers they touch. But only these should go here.
@@ -1105,6 +1110,11 @@
 # Infiniband driver
 %patch2600 -p1
 
+# kprobe changes
+%patch2700 -p1
+%patch2701 -p1
+%patch2702 -p1
+
 #
 # Patches 5000 to 6000 are reserved for new drivers that are about to
 # be merged upstream
@@ -1882,6 +1892,9 @@
 %endif
 
 %changelog
+* Thu Sep 14 2006 Dave Jones <davej at redhat.com>
+- kprobe changes to make systemtap's life easier.
+
 * Thu Sep 14 2006 Don Zickus <dzickus at redhat.com>
 - sync up beta1 fixes and patches
    - includes infiniband driver