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Commit d51ce720 authored by Jinesh K. Jayakumar's avatar Jinesh K. Jayakumar
Browse files

net: aquantia: smmu support via devicetree 



Enable support for attaching Aquantia PCI NIC to SMMU with configuration
via devicetree.

CRs-Fixed: 2309519
Change-Id: Iff1f54cbaf25040cb6ea5512c0867955dee727a8
Signed-off-by: default avatarJinesh K. Jayakumar <jineshk@codeaurora.org>
parent 88e829ae

Documentation/devicetree/bindings/net/aquantia.txt

0 → 100644
+52 −0
Original line number Diff line number Diff line 
Aquantia Corporation AQC/AQN 107/108/109 Ethernet Controller





Required properties:



- compatible : should be one of "aquantia,aqc-107", "aquantia,aqc-108",

  "aquantia,aqc-109"



If SMMU is present, also use:



- qcom,smmu : if present, SMMU attach is performed

- qcom,smmu-iova-base : SMMU IOVA start address the device can access

- qcom,smmu-iova-size : SMMU IOVA size the device can access



Optional Properties:



- qcom,smmu-attr-s1-bypass : Bypasses SMMU S1 translation

- qcom,smmu-attr-fastmap : Enables SMMU fastmap

- qcom,smmu-attr-atomic : Enables DMA alloc using GFP_ATOMIC

- qcom,smmu-attr-pt-coherent : Use if DMA coherency is available for SMMU page tables





Example:



&pcie_rc0 {



	aqc_x1: qcom,aqc@0 {

		compatible = "aquantia,aqc-107";



		qcom,smmu;

		qcom,smmu-iova-base = /bits/ 64 <0x0>;

		qcom,smmu-iova-size = /bits/ 64 <0x100000000>;



		qcom,smmu-attr-s1-bypass;

	};

};



&pcie_rc1 {



	aqc_x4: qcom,aqc@1 {

		compatible = "aquantia,aqc-107";



		qcom,smmu;

		qcom,smmu-iova-base = /bits/ 64 <0x0>;

		qcom,smmu-iova-size = /bits/ 64 <0x100000000>;



		qcom,smmu-attr-atomic;

		qcom,smmu-attr-fastmap;

		qcom,smmu-attr-pt-coherent;

	};

};

Documentation/devicetree/bindings/vendor-prefixes.txt

+1 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ andestech Andes Technology Corporation 
android	Google

apm	Applied Micro Circuits Corporation (APM)

aptina	Aptina Imaging

aquantia	Aquantia Corporation

arasan	Arasan Chip Systems

arctic	Arctic Sand

aries	Aries Embedded GmbH

drivers/net/ethernet/aquantia/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -26,4 +26,12 @@ config AQFWD 
	depends on PCI && (X86_64 || ARM64)

	---help---

	  This enables the support for forwarding driver for the aQuantia AQtion(tm) Ethernet card.



config AQFWD_QCOM

	bool "QTI MSM/MDM target support"

	depends on AQFWD

	depends on ARCH_QCOM

	help

	  Enable support for integration with Qualcomm Technologies, Inc. chipsets.



endif # NET_VENDOR_AQUANTIA

drivers/net/ethernet/aquantia/atlantic-fwd/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -39,4 +39,8 @@ atlantic-fwd-objs := atl_fw.o \ 
		     atl_compat.o \

		     atl_hwmon.o



atlantic-fwd-$(CONFIG_OF) += atl_of.o



atlantic-fwd-$(CONFIG_AQFWD_QCOM) += atl_qcom.o



CFLAGS_atl_trace.o := -I$(src)

drivers/net/ethernet/aquantia/atlantic-fwd/atl_main.c

+6 −0
Original line number Diff line number Diff line
@@ -13,6 +13,8 @@ 
#include <linux/etherdevice.h>

#include <linux/rtnetlink.h>



#include "atl_of.h"



const char atl_driver_name[] = "atlantic-fwd";



int atl_max_queues = ATL_MAX_QUEUES;
@@ -290,6 +292,10 @@ static int atl_probe(struct pci_dev *pdev, const struct pci_device_id *id) 
		return -EINVAL;

	}



	ret = atl_parse_dt(&pdev->dev);

	if (ret)

		return ret;



	ret = pci_enable_device_mem(pdev);

	if (ret)

		return ret;