qede: Add basic Network driver

The Qlogic Everest Driver for Ethernet is the Ethernet specific module for
QL4xxx ethernet products by Qlogic.

This patch adds a very minimal PCI driver, one that doesn't yet register
a network device, but one that does interact with qed and does a basic
initialization of the HW.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/Kconfig

@@ -97,4 +97,9 @@ config QED
 	---help---
 	  This enables the support for ...
 
+config QEDE
+	tristate "QLogic QED 25/40/100Gb Ethernet NIC"
+	depends on QED
+	---help---
+	  This enables the support for ...
 endif # NET_VENDOR_QLOGIC

drivers/net/ethernet/qlogic/Makefile

@@ -7,3 +7,4 @@ obj-$(CONFIG_QLCNIC) += qlcnic/
 obj-$(CONFIG_QLGE) += qlge/
 obj-$(CONFIG_NETXEN_NIC) += netxen/
 obj-$(CONFIG_QED) += qed/
+obj-$(CONFIG_QEDE)+= qede/

drivers/net/ethernet/qlogic/qede/Makefile

@@ -0,0 +1,3 @@
+obj-$(CONFIG_QEDE) := qede.o
+
+qede-y := qede_main.o

drivers/net/ethernet/qlogic/qede/qede.h

@@ -0,0 +1,73 @@
+/* QLogic qede NIC Driver
+* Copyright (c) 2015 QLogic Corporation
+*
+* This software is available under the terms of the GNU General Public License
+* (GPL) Version 2, available from the file COPYING in the main directory of
+* this source tree.
+*/
+
+#ifndef _QEDE_H_
+#define _QEDE_H_
+#include <linux/compiler.h>
+#include <linux/version.h>
+#include <linux/workqueue.h>
+#include <linux/netdevice.h>
+#include <linux/interrupt.h>
+#include <linux/bitmap.h>
+#include <linux/kernel.h>
+#include <linux/mutex.h>
+#include <linux/io.h>
+#include <linux/qed/common_hsi.h>
+#include <linux/qed/eth_common.h>
+#include <linux/qed/qed_if.h>
+#include <linux/qed/qed_chain.h>
+#include <linux/qed/qed_eth_if.h>
+
+#define QEDE_MAJOR_VERSION		8
+#define QEDE_MINOR_VERSION		4
+#define QEDE_REVISION_VERSION		0
+#define QEDE_ENGINEERING_VERSION	0
+#define DRV_MODULE_VERSION __stringify(QEDE_MAJOR_VERSION) "."	\
+		__stringify(QEDE_MINOR_VERSION) "."		\
+		__stringify(QEDE_REVISION_VERSION) "."		\
+		__stringify(QEDE_ENGINEERING_VERSION)
+
+#define QEDE_ETH_INTERFACE_VERSION	300
+
+#define DRV_MODULE_SYM		qede
+
+struct qede_dev {
+	struct qed_dev			*cdev;
+	struct net_device		*ndev;
+	struct pci_dev			*pdev;
+
+	u32				dp_module;
+	u8				dp_level;
+
+	const struct qed_eth_ops	*ops;
+
+	struct qed_dev_eth_info	dev_info;
+#define QEDE_MAX_RSS_CNT(edev)	((edev)->dev_info.num_queues)
+#define QEDE_MAX_TSS_CNT(edev)	((edev)->dev_info.num_queues * \
+				 (edev)->dev_info.num_tc)
+
+	u16				num_rss;
+	u8				num_tc;
+#define QEDE_RSS_CNT(edev)		((edev)->num_rss)
+#define QEDE_TSS_CNT(edev)		((edev)->num_rss *	\
+					 (edev)->num_tc)
+#define QEDE_TSS_IDX(edev, txqidx)	((txqidx) % (edev)->num_rss)
+#define QEDE_TC_IDX(edev, txqidx)	((txqidx) / (edev)->num_rss)
+
+	struct qed_int_info		int_info;
+	unsigned char			primary_mac[ETH_ALEN];
+
+	/* Smaller private varaiant of the RTNL lock */
+	struct mutex			qede_lock;
+	u32				state; /* Protected by qede_lock */
+};
+
+/* Debug print definitions */
+#define DP_NAME(edev) ((edev)->ndev->name)
+
+#endif /* _QEDE_H_ */