[net-next-2.6 PATCH 0/7] enic: updates to version 1.4.1.2

[net-next-2.6 PATCH 0/7] enic: updates to version 1.4.1.2

[Roopa Prabhu]

This patch series implements the following enic driver updates:

01/7 - Add set mac address
02/7 - Add support for firmware management device
03/7 - Add new firmware devcmds
04/7 - Use offsetof macro in vic tlv length calculation
05/7 - Clean up: remove enic_dev_stats_clear
06/7 - Check if rq/wq buf not NULL before freeing them
07/7 - Mark intr_timer in vnic_enet_config as deprecated


Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Roopa Prabhu<roprabhu@cisco.com>
Signed-off-by: Vasanthy Kolluri<vkolluri@cisco.com>

[net-next-2.6 PATCH 1/7] enic: Add set mac address

[Roopa Prabhu]

From: Roopa Prabhu <roprabhu@cisco.com>

This patch implements the ndo_set_mac_address netdev operation for an enic device

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
---
 drivers/net/enic/enic.h      |    2 +-
 drivers/net/enic/enic_main.c |    4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)


diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index f239aa8..75869ed 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -32,7 +32,7 @@
 
 #define DRV_NAME		"enic"
 #define DRV_DESCRIPTION		"Cisco VIC Ethernet NIC Driver"
-#define DRV_VERSION		"1.4.1.1"
+#define DRV_VERSION		"1.4.1.2"
 #define DRV_COPYRIGHT		"Copyright 2008-2010 Cisco Systems, Inc"
 
 #define ENIC_BARS_MAX		6
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 77a7f87..07aa033 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -911,7 +911,9 @@ static int enic_set_mac_address_dynamic(struct net_device *netdev, void *p)
 
 static int enic_set_mac_address(struct net_device *netdev, void *p)
 {
-	return -EOPNOTSUPP;
+	struct sockaddr *saddr = p;
+
+	return enic_set_mac_addr(netdev, (char *)saddr->sa_data);
 }
 
 static int enic_dev_packet_filter(struct enic *enic, int directed,

[net-next-2.6 PATCH 2/7] enic: Add support for firmware management device

[Roopa Prabhu]

From: Roopa Prabhu <roprabhu@cisco.com>

This patch adds support for firmware management device in enic driver.
A management device is a virtual PCIe device that firmware can present
to the host as its management endpoint. It provides the interface between
the host and adapter firmware for all management operations.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
---
 drivers/net/enic/vnic_dev.c      |   25 ++++++++++++++++++-------
 drivers/net/enic/vnic_resource.h |   13 +++++++++++++
 2 files changed, 31 insertions(+), 7 deletions(-)


diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index 6a5b578..08d5d42 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -74,6 +74,7 @@ static int vnic_dev_discover_res(struct vnic_dev *vdev,
 	struct vnic_dev_bar *bar, unsigned int num_bars)
 {
 	struct vnic_resource_header __iomem *rh;
+	struct mgmt_barmap_hdr __iomem *mrh;
 	struct vnic_resource __iomem *r;
 	u8 type;
 
@@ -85,22 +86,32 @@ static int vnic_dev_discover_res(struct vnic_dev *vdev,
 		return -EINVAL;
 	}
 
-	rh = bar->vaddr;
+	rh  = bar->vaddr;
+	mrh = bar->vaddr;
 	if (!rh) {
 		pr_err("vNIC BAR0 res hdr not mem-mapped\n");
 		return -EINVAL;
 	}
 
-	if (ioread32(&rh->magic) != VNIC_RES_MAGIC ||
-	    ioread32(&rh->version) != VNIC_RES_VERSION) {
-		pr_err("vNIC BAR0 res magic/version error "
-			"exp (%lx/%lx) curr (%x/%x)\n",
+	/* Check for mgmt vnic in addition to normal vnic */
+	if ((ioread32(&rh->magic) != VNIC_RES_MAGIC) ||
+		(ioread32(&rh->version) != VNIC_RES_VERSION)) {
+		if ((ioread32(&mrh->magic) != MGMTVNIC_MAGIC) ||
+			(ioread32(&mrh->version) != MGMTVNIC_VERSION)) {
+			pr_err("vNIC BAR0 res magic/version error "
+			"exp (%lx/%lx) or (%lx/%lx), curr (%x/%x)\n",
 			VNIC_RES_MAGIC, VNIC_RES_VERSION,
+			MGMTVNIC_MAGIC, MGMTVNIC_VERSION,
 			ioread32(&rh->magic), ioread32(&rh->version));
-		return -EINVAL;
+			return -EINVAL;
+		}
 	}
 
-	r = (struct vnic_resource __iomem *)(rh + 1);
+	if (ioread32(&mrh->magic) == MGMTVNIC_MAGIC)
+		r = (struct vnic_resource __iomem *)(mrh + 1);
+	else
+		r = (struct vnic_resource __iomem *)(rh + 1);
+
 
 	while ((type = ioread8(&r->type)) != RES_TYPE_EOL) {
 
diff --git a/drivers/net/enic/vnic_resource.h b/drivers/net/enic/vnic_resource.h
index 810287b..e0a73f1 100644
--- a/drivers/net/enic/vnic_resource.h
+++ b/drivers/net/enic/vnic_resource.h
@@ -22,6 +22,11 @@
 
 #define VNIC_RES_MAGIC		0x766E6963L	/* 'vnic' */
 #define VNIC_RES_VERSION	0x00000000L
+#define MGMTVNIC_MAGIC		0x544d474dL	/* 'MGMT' */
+#define MGMTVNIC_VERSION	0x00000000L
+
+/* The MAC address assigned to the CFG vNIC is fixed. */
+#define MGMTVNIC_MAC		{ 0x02, 0x00, 0x54, 0x4d, 0x47, 0x4d }
 
 /* vNIC resource types */
 enum vnic_res_type {
@@ -52,6 +57,14 @@ struct vnic_resource_header {
 	u32 version;
 };
 
+struct mgmt_barmap_hdr {
+	u32 magic;			/* magic number */
+	u32 version;			/* header format version */
+	u16 lif;			/* loopback lif for mgmt frames */
+	u16 pci_slot;			/* installed pci slot */
+	char serial[16];		/* card serial number */
+};
+
 struct vnic_resource {
 	u8 type;
 	u8 bar;

[net-next-2.6 PATCH 3/7] enic: Add new firmware devcmds

[Roopa Prabhu]

From: Roopa Prabhu <roprabhu@cisco.com>

Add new firmware devcmds:  CMD_PROXY_BY_INDEX, CMD_CONFIG_INFO_GET

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
---
 drivers/net/enic/vnic_devcmd.h |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)


diff --git a/drivers/net/enic/vnic_devcmd.h b/drivers/net/enic/vnic_devcmd.h
index 2066175..9abb3d5 100644
--- a/drivers/net/enic/vnic_devcmd.h
+++ b/drivers/net/enic/vnic_devcmd.h
@@ -238,6 +238,18 @@ enum vnic_devcmd_cmd {
 	 * out: (u32)a0=status of proxied cmd
 	 *      a1-a15=out args of proxied cmd */
 	CMD_PROXY_BY_BDF =	_CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 42),
+
+	/*
+	 * As for BY_BDF except a0 is index of hvnlink subordinate vnic
+	 * or SR-IOV virtual vnic */
+	CMD_PROXY_BY_INDEX =    _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 43),
+
+	/*
+	 * in:  (u64)a0=paddr of buffer to put latest VIC VIF-CONFIG-INFO TLV in
+	 *      (u32)a1=length of buffer in a0
+	 * out: (u64)a0=paddr of buffer with latest VIC VIF-CONFIG-INFO TLV
+	 *      (u32)a1=actual length of latest VIC VIF-CONFIG-INFO TLV */
+	CMD_CONFIG_INFO_GET     = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 44),
 };
 
 /* flags for CMD_OPEN */

[net-next-2.6 PATCH 4/7] enic: Use offsetof macro in vic tlv length calculation

[Roopa Prabhu]

From: Roopa Prabhu <roprabhu@cisco.com>



Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
---
 drivers/net/enic/vnic_vic.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)


diff --git a/drivers/net/enic/vnic_vic.c b/drivers/net/enic/vnic_vic.c
index 197c9d2..4725b79 100644
--- a/drivers/net/enic/vnic_vic.c
+++ b/drivers/net/enic/vnic_vic.c
@@ -54,8 +54,8 @@ int vic_provinfo_add_tlv(struct vic_provinfo *vp, u16 type, u16 length,
 	if (!vp || !value)
 		return -EINVAL;
 
-	if (ntohl(vp->length) + sizeof(*tlv) + length >
-		VIC_PROVINFO_MAX_TLV_DATA)
+	if (ntohl(vp->length) + offsetof(struct vic_provinfo_tlv, value) +
+		length > VIC_PROVINFO_MAX_TLV_DATA)
 		return -ENOMEM;
 
 	tlv = (struct vic_provinfo_tlv *)((u8 *)vp->tlv +
@@ -66,7 +66,8 @@ int vic_provinfo_add_tlv(struct vic_provinfo *vp, u16 type, u16 length,
 	memcpy(tlv->value, value, length);
 
 	vp->num_tlvs = htonl(ntohl(vp->num_tlvs) + 1);
-	vp->length = htonl(ntohl(vp->length) + sizeof(*tlv) + length);
+	vp->length = htonl(ntohl(vp->length) +
+		offsetof(struct vic_provinfo_tlv, value) + length);
 
 	return 0;
 }

[net-next-2.6 PATCH 5/7] enic: Clean up: remove enic_dev_stats_clear

[Roopa Prabhu]

From: Roopa Prabhu <roprabhu@cisco.com>

Remove function enic_dev_stats_clear and its reference in enic device
init code. Firmware clears device stats on device open. So, no need for
the driver to do it again.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
---
 drivers/net/enic/enic_main.c |   15 ---------------
 1 files changed, 0 insertions(+), 15 deletions(-)


diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 07aa033..d08f362 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -2167,17 +2167,6 @@ void enic_dev_deinit(struct enic *enic)
 	enic_clear_intr_mode(enic);
 }
 
-static int enic_dev_stats_clear(struct enic *enic)
-{
-	int err;
-
-	spin_lock(&enic->devcmd_lock);
-	err = vnic_dev_stats_clear(enic->vdev);
-	spin_unlock(&enic->devcmd_lock);
-
-	return err;
-}
-
 int enic_dev_init(struct enic *enic)
 {
 	struct device *dev = enic_get_dev(enic);
@@ -2220,10 +2209,6 @@ int enic_dev_init(struct enic *enic)
 
 	enic_init_vnic_resources(enic);
 
-	/* Clear LIF stats
-	 */
-	enic_dev_stats_clear(enic);
-
 	err = enic_set_rq_alloc_buf(enic);
 	if (err) {
 		dev_err(dev, "Failed to set RQ buffer allocator, aborting\n");

[net-next-2.6 PATCH 6/7] enic: Check if rq/wq buf not NULL before freeing them

[Roopa Prabhu]

From: Roopa Prabhu <roprabhu@cisco.com>



Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
---
 drivers/net/enic/vnic_rq.c |    6 ++++--
 drivers/net/enic/vnic_wq.c |    6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)


diff --git a/drivers/net/enic/vnic_rq.c b/drivers/net/enic/vnic_rq.c
index dbb2aca..b236d7c 100644
--- a/drivers/net/enic/vnic_rq.c
+++ b/drivers/net/enic/vnic_rq.c
@@ -77,8 +77,10 @@ void vnic_rq_free(struct vnic_rq *rq)
 	vnic_dev_free_desc_ring(vdev, &rq->ring);
 
 	for (i = 0; i < VNIC_RQ_BUF_BLKS_MAX; i++) {
-		kfree(rq->bufs[i]);
-		rq->bufs[i] = NULL;
+		if (rq->bufs[i]) {
+			kfree(rq->bufs[i]);
+			rq->bufs[i] = NULL;
+		}
 	}
 
 	rq->ctrl = NULL;
diff --git a/drivers/net/enic/vnic_wq.c b/drivers/net/enic/vnic_wq.c
index 122e33b..4b2a6c6 100644
--- a/drivers/net/enic/vnic_wq.c
+++ b/drivers/net/enic/vnic_wq.c
@@ -77,8 +77,10 @@ void vnic_wq_free(struct vnic_wq *wq)
 	vnic_dev_free_desc_ring(vdev, &wq->ring);
 
 	for (i = 0; i < VNIC_WQ_BUF_BLKS_MAX; i++) {
-		kfree(wq->bufs[i]);
-		wq->bufs[i] = NULL;
+		if (wq->bufs[i]) {
+			kfree(wq->bufs[i]);
+			wq->bufs[i] = NULL;
+		}
 	}
 
 	wq->ctrl = NULL;

[net-next-2.6 PATCH 7/7] enic: Mark intr_timer in vnic_enet_config as deprecated

[Roopa Prabhu]

From: Roopa Prabhu <roprabhu@cisco.com>



Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
---
 drivers/net/enic/vnic_enet.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


diff --git a/drivers/net/enic/vnic_enet.h b/drivers/net/enic/vnic_enet.h
index 3b32912..e8740e3 100644
--- a/drivers/net/enic/vnic_enet.h
+++ b/drivers/net/enic/vnic_enet.h
@@ -30,7 +30,7 @@ struct vnic_enet_config {
 	u32 wq_desc_count;
 	u32 rq_desc_count;
 	u16 mtu;
-	u16 intr_timer;
+	u16 intr_timer_deprecated;
 	u8 intr_timer_type;
 	u8 intr_mode;
 	char devname[16];

Re: [net-next-2.6 PATCH 0/7] enic: updates to version 1.4.1.2

[David Miller]

From: Roopa Prabhu <roprabhu@cisco.com>
Date: Tue, 10 Aug 2010 21:54:50 -0700

> This patch series implements the following enic driver updates:
> 
> 01/7 - Add set mac address
> 02/7 - Add support for firmware management device
> 03/7 - Add new firmware devcmds
> 04/7 - Use offsetof macro in vic tlv length calculation
> 05/7 - Clean up: remove enic_dev_stats_clear
> 06/7 - Check if rq/wq buf not NULL before freeing them
> 07/7 - Mark intr_timer in vnic_enet_config as deprecated
> 
> 
> Signed-off-by: Scott Feldman <scofeldm@cisco.com>
> Signed-off-by: Roopa Prabhu<roprabhu@cisco.com>
> Signed-off-by: Vasanthy Kolluri<vkolluri@cisco.com>

All applied, thank you.