linux/ena update ENA linux driver to version 2.2.5

**New Features**
* Enable dynamic interrupt moderation on ARM64

Signed-off-by: Shay Agroskin <[email protected]>
Signed-off-by: Sameeh Jubran <[email protected]>

Author: Sameeh Jubran

kernel/linux/ena/RELEASENOTES.md

@@ -39,6 +39,9 @@ The driver was verified on the following distributions:
 SUSE Linux Enterprise Server 12 SP2
 SUSE Linux Enterprise Server 12 SP3
 
+## r2.2.5 release notes
+**New Features**
+* Enable dynamic interrupt moderation on ARM64
 
 ## r2.2.4 release notes
 **Bug Fixes**

kernel/linux/ena/ena_netdev.c

@@ -2770,6 +2770,14 @@ static int ena_up(struct ena_adapter *adapter)
 	 */
 	ena_init_napi_in_range(adapter, 0, io_queue_count);
 
+#ifdef CONFIG_ARM64
+	/* enable DIM by default on ARM machines, also needs to happen
+	 * before enabling IRQs since DIM is ran from napi routine
+	 */
+	if (ena_com_interrupt_moderation_supported(adapter->ena_dev))
+		ena_com_enable_adaptive_moderation(adapter->ena_dev);
+#endif
+
 	rc = ena_request_io_irq(adapter);
 	if (rc)
 		goto err_req_irq;

kernel/linux/ena/ena_netdev.h

@@ -53,7 +53,7 @@
 
 #define DRV_MODULE_GEN_MAJOR	2
 #define DRV_MODULE_GEN_MINOR	2
-#define DRV_MODULE_GEN_SUBMINOR 4
+#define DRV_MODULE_GEN_SUBMINOR 5
 
 #define DRV_MODULE_NAME		"ena"
 #ifndef DRV_MODULE_GENERATION

kernel/linux/rpm/Makefile

@@ -3,7 +3,7 @@
 # Author: Cristian Gafton <[email protected]>
 
 NAME	= ena
-VERSION	= 2.2.4
+VERSION	= 2.2.5
 
 TOPDIR	:= $(shell git rev-parse --show-toplevel)
 

kernel/linux/rpm/README-rpm.txt

@@ -32,7 +32,7 @@ Once the pre-requisites have been installed, you can simply issue a
 "make" in this directory to build the kmod src.rpm package:
 
 bash$ make
-cd .. && git archive --format=tar --prefix=ena-2.2.4/ -o rpm/ena-2.2.4.tar ena_linux_2.2.4
+cd .. && git archive --format=tar --prefix=ena-2.2.5/ -o rpm/ena-2.2.5.tar ena_linux_2.2.5
 rpmbuild -bs \
             --define '_topdir %(pwd)' --define '_ntopdir %(pwd)' \
             --define '_builddir  %{_ntopdir}' \
@@ -41,7 +41,7 @@ rpmbuild -bs \
             --define '_rpmdir    %{_ntopdir}' \
             --define '_srcrpmdir %{_ntopdir}' \
         ena.spec
-Wrote: /home/ec2-user/amzn-drivers/rpm/ena-2.2.4-1.el7.3.src.rpm
+Wrote: /home/ec2-user/amzn-drivers/rpm/ena-2.2.5-1.el7.3.src.rpm
 bash$ _
 
 
@@ -50,16 +50,16 @@ COMPILING AND INSTALLING
 Once the src.rpm has been created, you can build binary packages for
 the installed kernel-devel and kernel-headers environments:
 
-bash$ rpmbuild --rebuild ena-2.2.4-1.el7.3.src.rpm
+bash$ rpmbuild --rebuild ena-2.2.5-1.el7.3.src.rpm
 [....]
-Wrote: /home/ec2-user/rpmbuild/RPMS/x86_64/kmod-ena-2.2.4-1.el7.3.x86_64.rpm
-Wrote: /home/ec2-user/rpmbuild/RPMS/x86_64/ena-debuginfo-2.2.4-1.el7.3.x86_64.rpm
+Wrote: /home/ec2-user/rpmbuild/RPMS/x86_64/kmod-ena-2.2.5-1.el7.3.x86_64.rpm
+Wrote: /home/ec2-user/rpmbuild/RPMS/x86_64/ena-debuginfo-2.2.5-1.el7.3.x86_64.rpm
 [...]
 bash$ _
 
 Now you should be able to install/deploy the resulting binary rpm
 packages using your preferred rpm install too. For example, using yum:
 
 bash$ sudo yum -y localinstall
-/home/ec2-user/rpmbuild/RPMS/x86_64/kmod-ena-2.2.4-1.el7.3.x86_64.rpm
+/home/ec2-user/rpmbuild/RPMS/x86_64/kmod-ena-2.2.5-1.el7.3.x86_64.rpm
 

kernel/linux/rpm/ena.spec

@@ -1,5 +1,5 @@
 %define kmod_name		ena
-%define kmod_driver_version	2.2.4
+%define kmod_driver_version	2.2.5
 %define kmod_rpm_release	1
 %define kmod_git_hash		3ac3e0bf079b2c0468f759f2213541e214a6dd77
 %define kmod_kbuild_dir		kernel/linux/ena
@@ -22,7 +22,7 @@ Source7:	preamble
 
 Name:		%{kmod_name}
 Version:	%{kmod_driver_version}
-Release:	%{kmod_rpm_release}%{?dist}.20
+Release:	%{kmod_rpm_release}%{?dist}.21
 Summary:	%{kmod_name} kernel module
 
 Group:		System/Kernel
@@ -99,6 +99,9 @@ install -m 644 -D source/%{kmod_kbuild_dir}/RELEASENOTES.md $RPM_BUILD_ROOT/usr/
 rm -rf $RPM_BUILD_ROOT
 
 %changelog
+* Thu Mar 19 2020 Sameeh Jubran [email protected] - 2.2.5-1.21
+- Update ENA driver to version 2.2.5
+
 * Thu Mar 19 2020 Sameeh Jubran [email protected] - 2.2.4-1.20
 - Update ENA driver to version 2.2.4