net: Add ndo_{set|get}_vf_port support for enic dynamic vnics

Add enic ndo_{set|get}_vf_port ops to support setting/getting
port-profile for enic dynamic devices.  Enic dynamic devices are just like
normal enic eth devices except dynamic enics require an extra configuration
step to assign a port-profile identifier to the interface before the
interface is useable.  Once a port-profile is assigned, link comes up on the
interface and is ready for I/O.  The port-profile is used to configure the
network port assigned to the interface.  The network port configuration
includes VLAN membership, QoS policies, and port security settings typical
of a data center network.

A dynamic enic initially has a zero-mac address.  Before a port-profile is
assigned, a valid non-zero unicast mac address should be assign to the
dynamic enic interface.
Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>

drivers/net/enic/Makefile

 obj-$(CONFIG_ENIC) := enic.o
 
 enic-y := enic_main.o vnic_cq.o vnic_intr.o vnic_wq.o \
-	enic_res.o vnic_dev.o vnic_rq.o
+	enic_res.o vnic_dev.o vnic_rq.o vnic_vic.o
 

drivers/net/enic/enic.h

@@ -34,7 +34,7 @@
 
 #define DRV_NAME		"enic"
 #define DRV_DESCRIPTION		"Cisco VIC Ethernet NIC Driver"
-#define DRV_VERSION		"1.3.1.1"
+#define DRV_VERSION		"1.3.1.1-pp"
 #define DRV_COPYRIGHT		"Copyright 2008-2009 Cisco Systems, Inc"
 #define PFX			DRV_NAME ": "
 
@@ -74,6 +74,13 @@ struct enic_msix_entry {
 	void *devid;
 };
 
+struct enic_port_profile {
+	u8 request;
+	char name[PORT_PROFILE_MAX];
+	u8 instance_uuid[PORT_UUID_MAX];
+	u8 host_uuid[PORT_UUID_MAX];
+};
+
 /* Per-instance private data structure */
 struct enic {
 	struct net_device *netdev;
@@ -95,6 +102,7 @@ struct enic {
 	u32 port_mtu;
 	u32 rx_coalesce_usecs;
 	u32 tx_coalesce_usecs;
+	struct enic_port_profile pp;
 
 	/* work queue cache line section */
 	____cacheline_aligned struct vnic_wq wq[ENIC_WQ_MAX];

drivers/net/enic/enic_res.c

@@ -103,11 +103,6 @@ int enic_get_vnic_config(struct enic *enic)
 	return 0;
 }
 
-void enic_add_station_addr(struct enic *enic)
-{
-	vnic_dev_add_addr(enic->vdev, enic->mac_addr);
-}
-
 void enic_add_multicast_addr(struct enic *enic, u8 *addr)
 {
 	vnic_dev_add_addr(enic->vdev, addr);

drivers/net/enic/enic_res.h

@@ -131,7 +131,6 @@ static inline void enic_queue_rq_desc(struct vnic_rq *rq,
 struct enic;
 
 int enic_get_vnic_config(struct enic *);
-void enic_add_station_addr(struct enic *enic);
 void enic_add_multicast_addr(struct enic *enic, u8 *addr);
 void enic_del_multicast_addr(struct enic *enic, u8 *addr);
 void enic_add_vlan(struct enic *enic, u16 vlanid);

drivers/net/enic/vnic_dev.c

@@ -530,7 +530,7 @@ void vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
 		printk(KERN_ERR "Can't set packet filter\n");
 }
 
-void vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr)
+int vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr)
 {
 	u64 a0 = 0, a1 = 0;
 	int wait = 1000;
@@ -543,9 +543,11 @@ void vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr)
 	err = vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait);
 	if (err)
 		printk(KERN_ERR "Can't add addr [%pM], %d\n", addr, err);
+
+	return err;
 }
 
-void vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr)
+int vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr)
 {
 	u64 a0 = 0, a1 = 0;
 	int wait = 1000;
@@ -558,6 +560,8 @@ void vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr)
 	err = vnic_dev_cmd(vdev, CMD_ADDR_DEL, &a0, &a1, wait);
 	if (err)
 		printk(KERN_ERR "Can't del addr [%pM], %d\n", addr, err);
+
+	return err;
 }
 
 int vnic_dev_raise_intr(struct vnic_dev *vdev, u16 intr)
@@ -682,6 +686,56 @@ int vnic_dev_init(struct vnic_dev *vdev, int arg)
 	return r;
 }
 
+int vnic_dev_init_done(struct vnic_dev *vdev, int *done, int *err)
+{
+	u64 a0 = 0, a1 = 0;
+	int wait = 1000;
+	int ret;
+
+	*done = 0;
+
+	ret = vnic_dev_cmd(vdev, CMD_INIT_STATUS, &a0, &a1, wait);
+	if (ret)
+		return ret;
+
+	*done = (a0 == 0);
+
+	*err = (a0 == 0) ? a1 : 0;
+
+	return 0;
+}
+
+int vnic_dev_init_prov(struct vnic_dev *vdev, u8 *buf, u32 len)
+{
+	u64 a0, a1 = len;
+	int wait = 1000;
+	u64 prov_pa;
+	void *prov_buf;
+	int ret;
+
+	prov_buf = pci_alloc_consistent(vdev->pdev, len, &prov_pa);
+	if (!prov_buf)
+		return -ENOMEM;
+
+	memcpy(prov_buf, buf, len);
+
+	a0 = prov_pa;
+
+	ret = vnic_dev_cmd(vdev, CMD_INIT_PROV_INFO, &a0, &a1, wait);
+
+	pci_free_consistent(vdev->pdev, len, prov_buf, prov_pa);
+
+	return ret;
+}
+
+int vnic_dev_deinit(struct vnic_dev *vdev)
+{
+	u64 a0 = 0, a1 = 0;
+	int wait = 1000;
+
+	return vnic_dev_cmd(vdev, CMD_DEINIT, &a0, &a1, wait);
+}
+
 int vnic_dev_link_status(struct vnic_dev *vdev)
 {
 	if (vdev->linkstatus)

drivers/net/enic/vnic_dev.h

@@ -103,8 +103,8 @@ int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats);
 int vnic_dev_hang_notify(struct vnic_dev *vdev);
 void vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
 	int broadcast, int promisc, int allmulti);
-void vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr);
-void vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr);
+int vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr);
+int vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr);
 int vnic_dev_mac_addr(struct vnic_dev *vdev, u8 *mac_addr);
 int vnic_dev_raise_intr(struct vnic_dev *vdev, u16 intr);
 int vnic_dev_notify_setcmd(struct vnic_dev *vdev,
@@ -124,6 +124,9 @@ int vnic_dev_disable(struct vnic_dev *vdev);
 int vnic_dev_open(struct vnic_dev *vdev, int arg);
 int vnic_dev_open_done(struct vnic_dev *vdev, int *done);
 int vnic_dev_init(struct vnic_dev *vdev, int arg);
+int vnic_dev_init_done(struct vnic_dev *vdev, int *done, int *err);
+int vnic_dev_init_prov(struct vnic_dev *vdev, u8 *buf, u32 len);
+int vnic_dev_deinit(struct vnic_dev *vdev);
 int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg);
 int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done);
 void vnic_dev_set_intr_mode(struct vnic_dev *vdev,

drivers/net/enic/vnic_vic.c

+/*
+ * Copyright 2010 Cisco Systems, Inc.  All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+
+#include "vnic_vic.h"
+
+struct vic_provinfo *vic_provinfo_alloc(gfp_t flags, u8 *oui, u8 type)
+{
+	struct vic_provinfo *vp = kzalloc(VIC_PROVINFO_MAX_DATA, flags);
+
+	if (!vp || !oui)
+		return NULL;
+
+	memcpy(vp->oui, oui, sizeof(vp->oui));
+	vp->type = type;
+	vp->length = htonl(sizeof(vp->num_tlvs));
+
+	return vp;
+}
+
+void vic_provinfo_free(struct vic_provinfo *vp)
+{
+	kfree(vp);
+}
+
+int vic_provinfo_add_tlv(struct vic_provinfo *vp, u16 type, u16 length,
+	void *value)
+{
+	struct vic_provinfo_tlv *tlv;
+
+	if (!vp || !value)
+		return -EINVAL;
+
+	if (ntohl(vp->length) + sizeof(*tlv) + length >
+		VIC_PROVINFO_MAX_TLV_DATA)
+		return -ENOMEM;
+
+	tlv = (struct vic_provinfo_tlv *)((u8 *)vp->tlv +
+		ntohl(vp->length) - sizeof(vp->num_tlvs));
+
+	tlv->type = htons(type);
+	tlv->length = htons(length);
+	memcpy(tlv->value, value, length);
+
+	vp->num_tlvs = htonl(ntohl(vp->num_tlvs) + 1);
+	vp->length = htonl(ntohl(vp->length) + sizeof(*tlv) + length);
+
+	return 0;
+}
+
+size_t vic_provinfo_size(struct vic_provinfo *vp)
+{
+	return vp ?  ntohl(vp->length) + sizeof(*vp) - sizeof(vp->num_tlvs) : 0;
+}

drivers/net/enic/vnic_vic.h

+/*
+ * Copyright 2010 Cisco Systems, Inc.  All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef _VNIC_VIC_H_
+#define _VNIC_VIC_H_
+
+/* Note: All integer fields in NETWORK byte order */
+
+/* Note: String field lengths include null char */
+
+#define VIC_PROVINFO_CISCO_OUI		{ 0x00, 0x00, 0x0c }
+#define VIC_PROVINFO_LINUX_TYPE		0x2
+
+enum vic_linux_prov_tlv_type {
+	VIC_LINUX_PROV_TLV_PORT_PROFILE_NAME_STR = 0,
+	VIC_LINUX_PROV_TLV_CLIENT_MAC_ADDR = 1,			/* u8[6] */
+	VIC_LINUX_PROV_TLV_CLIENT_NAME_STR = 2,
+	VIC_LINUX_PROV_TLV_HOST_UUID_STR = 8,
+	VIC_LINUX_PROV_TLV_CLIENT_UUID_STR = 9,
+};
+
+struct vic_provinfo {
+	u8 oui[3];		/* OUI of data provider */
+	u8 type;		/* provider-specific type */
+	u32 length;		/* length of data below */
+	u32 num_tlvs;		/* number of tlvs */
+	struct vic_provinfo_tlv {
+		u16 type;
+		u16 length;
+		u8 value[0];
+	} tlv[0];
+} __attribute__ ((packed));
+
+#define VIC_PROVINFO_MAX_DATA		1385
+#define VIC_PROVINFO_MAX_TLV_DATA (VIC_PROVINFO_MAX_DATA - \
+	sizeof(struct vic_provinfo))
+
+struct vic_provinfo *vic_provinfo_alloc(gfp_t flags, u8 *oui, u8 type);
+void vic_provinfo_free(struct vic_provinfo *vp);
+int vic_provinfo_add_tlv(struct vic_provinfo *vp, u16 type, u16 length,
+	void *value);
+size_t vic_provinfo_size(struct vic_provinfo *vp);
+
+#endif	/* _VNIC_VIC_H_ */